diff options
Diffstat (limited to 'drivers/usb')
134 files changed, 6364 insertions, 4300 deletions
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig index 640ae6c6d2d2..2c481b808276 100644 --- a/drivers/usb/Kconfig +++ b/drivers/usb/Kconfig @@ -186,6 +186,4 @@ source "drivers/usb/atm/Kconfig" source "drivers/usb/gadget/Kconfig" -source "drivers/usb/otg/Kconfig" - endif # USB_SUPPORT diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile index 8f5ebced5df0..c41feba8d5c0 100644 --- a/drivers/usb/Makefile +++ b/drivers/usb/Makefile @@ -6,8 +6,6 @@ obj-$(CONFIG_USB) += core/ -obj-$(CONFIG_USB_OTG_UTILS) += otg/ - obj-$(CONFIG_USB_DWC3) += dwc3/ obj-$(CONFIG_USB_MON) += mon/ @@ -46,7 +44,7 @@ obj-$(CONFIG_USB_MICROTEK) += image/ obj-$(CONFIG_USB_SERIAL) += serial/ obj-$(CONFIG_USB) += misc/ -obj-$(CONFIG_USB_OTG_UTILS) += phy/ +obj-$(CONFIG_USB_PHY) += phy/ obj-$(CONFIG_EARLY_PRINTK_DBGP) += early/ obj-$(CONFIG_USB_ATM) += atm/ diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 3d90e6189731..519ead2443c5 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -1639,16 +1639,6 @@ static irqreturn_t udc_irq(struct ci13xxx *ci) } /** - * udc_release: driver release function - * @dev: device - * - * Currently does nothing - */ -static void udc_release(struct device *dev) -{ -} - -/** * udc_start: initialize gadget role * @ci: chipidea controller */ @@ -1667,12 +1657,6 @@ static int udc_start(struct ci13xxx *ci) INIT_LIST_HEAD(&ci->gadget.ep_list); - dev_set_name(&ci->gadget.dev, "gadget"); - ci->gadget.dev.dma_mask = dev->dma_mask; - ci->gadget.dev.coherent_dma_mask = dev->coherent_dma_mask; - ci->gadget.dev.parent = dev; - ci->gadget.dev.release = udc_release; - /* alloc resources */ ci->qh_pool = dma_pool_create("ci13xxx_qh", dev, sizeof(struct ci13xxx_qh), @@ -1710,17 +1694,11 @@ static int udc_start(struct ci13xxx *ci) goto put_transceiver; } - retval = device_register(&ci->gadget.dev); - if (retval) { - put_device(&ci->gadget.dev); - goto put_transceiver; - } - if (!IS_ERR_OR_NULL(ci->transceiver)) { retval = otg_set_peripheral(ci->transceiver->otg, &ci->gadget); if (retval) - goto unreg_device; + goto put_transceiver; } retval = usb_add_gadget_udc(dev, &ci->gadget); @@ -1740,8 +1718,6 @@ remove_trans: } dev_err(dev, "error = %i\n", retval); -unreg_device: - device_unregister(&ci->gadget.dev); put_transceiver: if (!IS_ERR_OR_NULL(ci->transceiver) && ci->global_phy) usb_put_phy(ci->transceiver); @@ -1776,7 +1752,6 @@ static void udc_stop(struct ci13xxx *ci) if (ci->global_phy) usb_put_phy(ci->transceiver); } - device_unregister(&ci->gadget.dev); /* my kobject is dynamic, I swear! */ memset(&ci->gadget, 0, sizeof(ci->gadget)); } diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig index 68e9a2c5a01a..ea5ee9c21c35 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -1,7 +1,6 @@ config USB_DWC3 tristate "DesignWare USB3 DRD Core Support" depends on (USB || USB_GADGET) && GENERIC_HARDIRQS - select USB_OTG_UTILS select USB_XHCI_PLATFORM if USB_SUPPORT && USB_XHCI_HCD help Say Y or M here if your system has a Dual Role SuperSpeed diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index ffa6b004a84b..c35d49d39b76 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -140,7 +140,8 @@ static void dwc3_free_one_event_buffer(struct dwc3 *dwc, * Returns a pointer to the allocated event buffer structure on success * otherwise ERR_PTR(errno). */ -static struct dwc3_event_buffer *dwc3_alloc_one_event_buffer(struct dwc3 *dwc, unsigned length) +static struct dwc3_event_buffer *dwc3_alloc_one_event_buffer(struct dwc3 *dwc, + unsigned length) { struct dwc3_event_buffer *evt; @@ -259,6 +260,17 @@ static void dwc3_event_buffers_cleanup(struct dwc3 *dwc) } } +static void dwc3_core_num_eps(struct dwc3 *dwc) +{ + struct dwc3_hwparams *parms = &dwc->hwparams; + + dwc->num_in_eps = DWC3_NUM_IN_EPS(parms); + dwc->num_out_eps = DWC3_NUM_EPS(parms) - dwc->num_in_eps; + + dev_vdbg(dwc->dev, "found %d IN and %d OUT endpoints\n", + dwc->num_in_eps, dwc->num_out_eps); +} + static void dwc3_cache_hwparams(struct dwc3 *dwc) { struct dwc3_hwparams *parms = &dwc->hwparams; @@ -335,13 +347,9 @@ static int dwc3_core_init(struct dwc3 *dwc) if (dwc->revision < DWC3_REVISION_190A) reg |= DWC3_GCTL_U2RSTECN; - dwc3_writel(dwc->regs, DWC3_GCTL, reg); + dwc3_core_num_eps(dwc); - ret = dwc3_event_buffers_setup(dwc); - if (ret) { - dev_err(dwc->dev, "failed to setup event buffers\n"); - goto err0; - } + dwc3_writel(dwc->regs, DWC3_GCTL, reg); return 0; @@ -351,8 +359,6 @@ err0: static void dwc3_core_exit(struct dwc3 *dwc) { - dwc3_event_buffers_cleanup(dwc); - usb_phy_shutdown(dwc->usb2_phy); usb_phy_shutdown(dwc->usb3_phy); } @@ -428,12 +434,32 @@ static int dwc3_probe(struct platform_device *pdev) dwc->usb3_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB3); } - if (IS_ERR_OR_NULL(dwc->usb2_phy)) { + if (IS_ERR(dwc->usb2_phy)) { + ret = PTR_ERR(dwc->usb2_phy); + + /* + * if -ENXIO is returned, it means PHY layer wasn't + * enabled, so it makes no sense to return -EPROBE_DEFER + * in that case, since no PHY driver will ever probe. + */ + if (ret == -ENXIO) + return ret; + dev_err(dev, "no usb2 phy configured\n"); return -EPROBE_DEFER; } - if (IS_ERR_OR_NULL(dwc->usb3_phy)) { + if (IS_ERR(dwc->usb3_phy)) { + ret = PTR_ERR(dwc->usb2_phy); + + /* + * if -ENXIO is returned, it means PHY layer wasn't + * enabled, so it makes no sense to return -EPROBE_DEFER + * in that case, since no PHY driver will ever probe. + */ + if (ret == -ENXIO) + return ret; + dev_err(dev, "no usb3 phy configured\n"); return -EPROBE_DEFER; } @@ -448,6 +474,10 @@ static int dwc3_probe(struct platform_device *pdev) dwc->regs_size = resource_size(res); dwc->dev = dev; + dev->dma_mask = dev->parent->dma_mask; + dev->dma_parms = dev->parent->dma_parms; + dma_set_coherent_mask(dev, dev->parent->coherent_dma_mask); + if (!strncmp("super", maximum_speed, 5)) dwc->maximum_speed = DWC3_DCFG_SUPERSPEED; else if (!strncmp("high", maximum_speed, 4)) @@ -480,7 +510,18 @@ static int dwc3_probe(struct platform_device *pdev) goto err0; } - mode = DWC3_MODE(dwc->hwparams.hwparams0); + ret = dwc3_event_buffers_setup(dwc); + if (ret) { + dev_err(dwc->dev, "failed to setup event buffers\n"); + goto err1; + } + + if (IS_ENABLED(CONFIG_USB_DWC3_HOST)) + mode = DWC3_MODE_HOST; + else if (IS_ENABLED(CONFIG_USB_DWC3_GADGET)) + mode = DWC3_MODE_DEVICE; + else + mode = DWC3_MODE_DRD; switch (mode) { case DWC3_MODE_DEVICE: @@ -488,7 +529,7 @@ static int dwc3_probe(struct platform_device *pdev) ret = dwc3_gadget_init(dwc); if (ret) { dev_err(dev, "failed to initialize gadget\n"); - goto err1; + goto err2; } break; case DWC3_MODE_HOST: @@ -496,7 +537,7 @@ static int dwc3_probe(struct platform_device *pdev) ret = dwc3_host_init(dwc); if (ret) { dev_err(dev, "failed to initialize host\n"); - goto err1; + goto err2; } break; case DWC3_MODE_DRD: @@ -504,32 +545,32 @@ static int dwc3_probe(struct platform_device *pdev) ret = dwc3_host_init(dwc); if (ret) { dev_err(dev, "failed to initialize host\n"); - goto err1; + goto err2; } ret = dwc3_gadget_init(dwc); if (ret) { dev_err(dev, "failed to initialize gadget\n"); - goto err1; + goto err2; } break; default: dev_err(dev, "Unsupported mode of operation %d\n", mode); - goto err1; + goto err2; } dwc->mode = mode; ret = dwc3_debugfs_init(dwc); if (ret) { dev_err(dev, "failed to initialize debugfs\n"); - goto err2; + goto err3; } pm_runtime_allow(dev); return 0; -err2: +err3: switch (mode) { case DWC3_MODE_DEVICE: dwc3_gadget_exit(dwc); @@ -546,6 +587,9 @@ err2: break; } +err2: + dwc3_event_buffers_cleanup(dwc); + err1: dwc3_core_exit(dwc); @@ -583,12 +627,130 @@ static int dwc3_remove(struct platform_device *pdev) break; } + dwc3_event_buffers_cleanup(dwc); dwc3_free_event_buffers(dwc); dwc3_core_exit(dwc); return 0; } +#ifdef CONFIG_PM_SLEEP +static int dwc3_prepare(struct device *dev) +{ + struct dwc3 *dwc = dev_get_drvdata(dev); + unsigned long flags; + + spin_lock_irqsave(&dwc->lock, flags); + + switch (dwc->mode) { + case DWC3_MODE_DEVICE: + case DWC3_MODE_DRD: + dwc3_gadget_prepare(dwc); + /* FALLTHROUGH */ + case DWC3_MODE_HOST: + default: + dwc3_event_buffers_cleanup(dwc); + break; + } + + spin_unlock_irqrestore(&dwc->lock, flags); + + return 0; +} + +static void dwc3_complete(struct device *dev) +{ + struct dwc3 *dwc = dev_get_drvdata(dev); + unsigned long flags; + + spin_lock_irqsave(&dwc->lock, flags); + + switch (dwc->mode) { + case DWC3_MODE_DEVICE: + case DWC3_MODE_DRD: + dwc3_gadget_complete(dwc); + /* FALLTHROUGH */ + case DWC3_MODE_HOST: + default: + dwc3_event_buffers_setup(dwc); + break; + } + + spin_unlock_irqrestore(&dwc->lock, flags); +} + +static int dwc3_suspend(struct device *dev) +{ + struct dwc3 *dwc = dev_get_drvdata(dev); + unsigned long flags; + + spin_lock_irqsave(&dwc->lock, flags); + + switch (dwc->mode) { + case DWC3_MODE_DEVICE: + case DWC3_MODE_DRD: + dwc3_gadget_suspend(dwc); + /* FALLTHROUGH */ + case DWC3_MODE_HOST: + default: + /* do nothing */ + break; + } + + dwc->gctl = dwc3_readl(dwc->regs, DWC3_GCTL); + spin_unlock_irqrestore(&dwc->lock, flags); + + usb_phy_shutdown(dwc->usb3_phy); + usb_phy_shutdown(dwc->usb2_phy); + + return 0; +} + +static int dwc3_resume(struct device *dev) +{ + struct dwc3 *dwc = dev_get_drvdata(dev); + unsigned long flags; + + usb_phy_init(dwc->usb3_phy); + usb_phy_init(dwc->usb2_phy); + msleep(100); + + spin_lock_irqsave(&dwc->lock, flags); + + dwc3_writel(dwc->regs, DWC3_GCTL, dwc->gctl); + + switch (dwc->mode) { + case DWC3_MODE_DEVICE: + case DWC3_MODE_DRD: + dwc3_gadget_resume(dwc); + /* FALLTHROUGH */ + case DWC3_MODE_HOST: + default: + /* do nothing */ + break; + } + + spin_unlock_irqrestore(&dwc->lock, flags); + + pm_runtime_disable(dev); + pm_runtime_set_active(dev); + pm_runtime_enable(dev); + + return 0; +} + +static const struct dev_pm_ops dwc3_dev_pm_ops = { + .prepare = dwc3_prepare, + .complete = dwc3_complete, + + SET_SYSTEM_SLEEP_PM_OPS(dwc3_suspend, dwc3_resume) +}; + +#define DWC3_PM_OPS &(dwc3_dev_pm_ops) +#else +#define DWC3_PM_OPS NULL +#endif + #ifdef CONFIG_OF static const struct of_device_id of_dwc3_match[] = { { @@ -605,6 +767,7 @@ static struct platform_driver dwc3_driver = { .driver = { .name = "dwc3", .of_match_table = of_match_ptr(of_dwc3_match), + .pm = DWC3_PM_OPS, }, }; diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index b41750660235..b69d322e3cab 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -154,8 +154,9 @@ /* OTG Registers */ #define DWC3_OCFG 0xcc00 #define DWC3_OCTL 0xcc04 -#define DWC3_OEVTEN 0xcc08 -#define DWC3_OSTS 0xcc0C +#define DWC3_OEVT 0xcc08 +#define DWC3_OEVTEN 0xcc0C +#define DWC3_OSTS 0xcc10 /* Bit fields */ @@ -369,6 +370,9 @@ struct dwc3_trb; * @list: a list of event buffers * @buf: _THE_ buffer * @length: size of this buffer + * @lpos: event offset + * @count: cache of last read event count register + * @flags: flags related to this event buffer * @dma: dma_addr_t * @dwc: pointer to DWC controller */ @@ -376,6 +380,10 @@ struct dwc3_event_buffer { void *buf; unsigned length; unsigned int lpos; + unsigned int count; + unsigned int flags; + +#define DWC3_EVENT_PENDING BIT(0) dma_addr_t dma; @@ -487,12 +495,6 @@ enum dwc3_link_state { DWC3_LINK_STATE_MASK = 0x0f, }; -enum dwc3_device_state { - DWC3_DEFAULT_STATE, - DWC3_ADDRESS_STATE, - DWC3_CONFIGURED_STATE, -}; - /* TRB Length, PCM and Status */ #define DWC3_TRB_SIZE_MASK (0x00ffffff) #define DWC3_TRB_SIZE_LENGTH(n) ((n) & DWC3_TRB_SIZE_MASK) @@ -574,6 +576,14 @@ struct dwc3_hwparams { /* HWPARAMS1 */ #define DWC3_NUM_INT(n) (((n) & (0x3f << 15)) >> 15) +/* HWPARAMS3 */ +#define DWC3_NUM_IN_EPS_MASK (0x1f << 18) +#define DWC3_NUM_EPS_MASK (0x3f << 12) +#define DWC3_NUM_EPS(p) (((p)->hwparams3 & \ + (DWC3_NUM_EPS_MASK)) >> 12) +#define DWC3_NUM_IN_EPS(p) (((p)->hwparams3 & \ + (DWC3_NUM_IN_EPS_MASK)) >> 18) + /* HWPARAMS7 */ #define DWC3_RAM1_DEPTH(n) ((n) & 0xffff) @@ -618,7 +628,6 @@ struct dwc3_scratchpad_array { * @gadget_driver: pointer to the gadget driver * @regs: base address for our registers * @regs_size: address space size - * @irq: IRQ number * @num_event_buffers: calculated number of event buffers * @u1u2: only used on revisions <1.83a for workaround * @maximum_speed: maximum speed requested (mainly for testing purposes) @@ -626,6 +635,8 @@ struct dwc3_scratchpad_array { * @mode: mode of operation * @usb2_phy: pointer to USB2 PHY * @usb3_phy: pointer to USB3 PHY + * @dcfg: saved contents of DCFG register + * @gctl: saved contents of GCTL register * @is_selfpowered: true when we are selfpowered * @three_stage_setup: set if we perform a three phase setup * @ep0_bounced: true when we used bounce buffer @@ -639,6 +650,8 @@ struct dwc3_scratchpad_array { * @u2pel: parameter from Set SEL request. * @u1sel: parameter from Set SEL request. * @u1pel: parameter from Set SEL request. + * @num_out_eps: number of out endpoints + * @num_in_eps: number of in endpoints * @ep0_next_event: hold the next expected event * @ep0state: state of endpoint zero * @link_state: link state @@ -656,8 +669,10 @@ struct dwc3 { dma_addr_t ep0_trb_addr; dma_addr_t ep0_bounce_addr; struct dwc3_request ep0_usb_req; + /* device lock */ spinlock_t lock; + struct device *dev; struct platform_device *xhci; @@ -675,6 +690,10 @@ struct dwc3 { void __iomem *regs; size_t regs_size; + /* used for suspend/resume */ + u32 dcfg; + u32 gctl; + u32 num_event_buffers; u32 u1u2; u32 maximum_speed; @@ -694,6 +713,9 @@ struct dwc3 { #define DWC3_REVISION_202A 0x5533202a #define DWC3_REVISION_210A 0x5533210a #define DWC3_REVISION_220A 0x5533220a +#define DWC3_REVISION_230A 0x5533230a +#define DWC3_REVISION_240A 0x5533240a +#define DWC3_REVISION_250A 0x5533250a unsigned is_selfpowered:1; unsigned three_stage_setup:1; @@ -704,11 +726,11 @@ struct dwc3 { unsigned delayed_status:1; unsigned needs_fifo_resize:1; unsigned resize_fifos:1; + unsigned pullups_connected:1; enum dwc3_ep0_next ep0_next_event; enum dwc3_ep0_state ep0state; enum dwc3_link_state link_state; - enum dwc3_device_state dev_state; u16 isoch_delay; u16 u2sel; @@ -718,6 +740,9 @@ struct dwc3 { u8 speed; + u8 num_out_eps; + u8 num_in_eps; + void *mem; struct dwc3_hwparams hwparams; @@ -884,4 +909,31 @@ static inline void dwc3_gadget_exit(struct dwc3 *dwc) { } #endif +/* power management interface */ +#if !IS_ENABLED(CONFIG_USB_DWC3_HOST) +int dwc3_gadget_prepare(struct dwc3 *dwc); +void dwc3_gadget_complete(struct dwc3 *dwc); +int dwc3_gadget_suspend(struct dwc3 *dwc); +int dwc3_gadget_resume(struct dwc3 *dwc); +#else +static inline int dwc3_gadget_prepare(struct dwc3 *dwc) +{ + return 0; +} + +static inline void dwc3_gadget_complete(struct dwc3 *dwc) +{ +} + +static inline int dwc3_gadget_suspend(struct dwc3 *dwc) +{ + return 0; +} + +static inline int dwc3_gadget_resume(struct dwc3 *dwc) +{ + return 0; +} +#endif /* !IS_ENABLED(CONFIG_USB_DWC3_HOST) */ + #endif /* __DRIVERS_USB_DWC3_CORE_H */ diff --git a/drivers/usb/dwc3/debugfs.c b/drivers/usb/dwc3/debugfs.c index 4a752e730c5f..9e9f122162f2 100644 --- a/drivers/usb/dwc3/debugfs.c +++ b/drivers/usb/dwc3/debugfs.c @@ -59,7 +59,7 @@ .offset = DWC3_ ##nm - DWC3_GLOBALS_REGS_START, \ } -static struct debugfs_reg32 dwc3_regs[] = { +static const struct debugfs_reg32 dwc3_regs[] = { dump_register(GSBUSCFG0), dump_register(GSBUSCFG1), dump_register(GTXTHRCFG), @@ -372,6 +372,7 @@ static struct debugfs_reg32 dwc3_regs[] = { dump_register(OCFG), dump_register(OCTL), + dump_register(OEVT), dump_register(OEVTEN), dump_register(OSTS), }; @@ -577,8 +578,14 @@ static int dwc3_link_state_show(struct seq_file *s, void *unused) case DWC3_LINK_STATE_LPBK: seq_printf(s, "Loopback\n"); break; + case DWC3_LINK_STATE_RESET: + seq_printf(s, "Reset\n"); + break; + case DWC3_LINK_STATE_RESUME: + seq_printf(s, "Resume\n"); + break; default: - seq_printf(s, "UNKNOWN %d\n", reg); + seq_printf(s, "UNKNOWN %d\n", state); } return 0; @@ -661,28 +668,31 @@ int dwc3_debugfs_init(struct dwc3 *dwc) goto err1; } -#if IS_ENABLED(CONFIG_USB_DWC3_GADGET) - file = debugfs_create_file("mode", S_IRUGO | S_IWUSR, root, - dwc, &dwc3_mode_fops); - if (!file) { - ret = -ENOMEM; - goto err1; - } - - file = debugfs_create_file("testmode", S_IRUGO | S_IWUSR, root, - dwc, &dwc3_testmode_fops); - if (!file) { - ret = -ENOMEM; - goto err1; + if (IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE)) { + file = debugfs_create_file("mode", S_IRUGO | S_IWUSR, root, + dwc, &dwc3_mode_fops); + if (!file) { + ret = -ENOMEM; + goto err1; + } } - file = debugfs_create_file("link_state", S_IRUGO | S_IWUSR, root, - dwc, &dwc3_link_state_fops); - if (!file) { - ret = -ENOMEM; - goto err1; + if (IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE) || + IS_ENABLED(CONFIG_USB_DWC3_GADGET)) { + file = debugfs_create_file("testmode", S_IRUGO | S_IWUSR, root, + dwc, &dwc3_testmode_fops); + if (!file) { + ret = -ENOMEM; + goto err1; + } + + file = debugfs_create_file("link_state", S_IRUGO | S_IWUSR, root, + dwc, &dwc3_link_state_fops); + if (!file) { + ret = -ENOMEM; + goto err1; + } } -#endif return 0; diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c index b082bec7343e..a8afe6e26621 100644 --- a/drivers/usb/dwc3/dwc3-exynos.c +++ b/drivers/usb/dwc3/dwc3-exynos.c @@ -22,9 +22,9 @@ #include <linux/usb/otg.h> #include <linux/usb/nop-usb-xceiv.h> #include <linux/of.h> +#include <linux/of_platform.h> struct dwc3_exynos { - struct platform_device *dwc3; struct platform_device *usb2_phy; struct platform_device *usb3_phy; struct device *dev; @@ -86,21 +86,30 @@ err1: return ret; } +static int dwc3_exynos_remove_child(struct device *dev, void *unused) +{ + struct platform_device *pdev = to_platform_device(dev); + + platform_device_unregister(pdev); + + return 0; +} + static u64 dwc3_exynos_dma_mask = DMA_BIT_MASK(32); static int dwc3_exynos_probe(struct platform_device *pdev) { - struct platform_device *dwc3; struct dwc3_exynos *exynos; struct clk *clk; struct device *dev = &pdev->dev; + struct device_node *node = dev->of_node; int ret = -ENOMEM; exynos = devm_kzalloc(dev, sizeof(*exynos), GFP_KERNEL); if (!exynos) { dev_err(dev, "not enough memory\n"); - return -ENOMEM; + goto err1; } /* @@ -108,21 +117,15 @@ static int dwc3_exynos_probe(struct platform_device *pdev) * Since shared usb code relies on it, set it here for now. * Once we move to full device tree support this will vanish off. */ - if (!pdev->dev.dma_mask) - pdev->dev.dma_mask = &dwc3_exynos_dma_mask; + if (!dev->dma_mask) + dev->dma_mask = &dwc3_exynos_dma_mask; platform_set_drvdata(pdev, exynos); ret = dwc3_exynos_register_phys(exynos); if (ret) { dev_err(dev, "couldn't register PHYs\n"); - return ret; - } - - dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO); - if (!dwc3) { - dev_err(dev, "couldn't allocate dwc3 device\n"); - return -ENOMEM; + goto err1; } clk = devm_clk_get(dev, "usbdrd30"); @@ -132,37 +135,28 @@ static int dwc3_exynos_probe(struct platform_device *pdev) goto err1; } - dma_set_coherent_mask(&dwc3->dev, dev->coherent_dma_mask); - - dwc3->dev.parent = dev; - dwc3->dev.dma_mask = dev->dma_mask; - dwc3->dev.dma_parms = dev->dma_parms; - exynos->dwc3 = dwc3; exynos->dev = dev; exynos->clk = clk; - clk_enable(exynos->clk); - - ret = platform_device_add_resources(dwc3, pdev->resource, - pdev->num_resources); - if (ret) { - dev_err(dev, "couldn't add resources to dwc3 device\n"); - goto err2; - } - - ret = platform_device_add(dwc3); - if (ret) { - dev_err(dev, "failed to register dwc3 device\n"); + clk_prepare_enable(exynos->clk); + + if (node) { + ret = of_platform_populate(node, NULL, NULL, dev); + if (ret) { + dev_err(dev, "failed to add dwc3 core\n"); + goto err2; + } + } else { + dev_err(dev, "no device node, failed to add dwc3 core\n"); + ret = -ENODEV; goto err2; } return 0; err2: - clk_disable(clk); + clk_disable_unprepare(clk); err1: - platform_device_put(dwc3); - return ret; } @@ -170,11 +164,11 @@ static int dwc3_exynos_remove(struct platform_device *pdev) { struct dwc3_exynos *exynos = platform_get_drvdata(pdev); - platform_device_unregister(exynos->dwc3); platform_device_unregister(exynos->usb2_phy); platform_device_unregister(exynos->usb3_phy); + device_for_each_child(&pdev->dev, NULL, dwc3_exynos_remove_child); - clk_disable(exynos->clk); + clk_disable_unprepare(exynos->clk); return 0; } @@ -187,12 +181,46 @@ static const struct of_device_id exynos_dwc3_match[] = { MODULE_DEVICE_TABLE(of, exynos_dwc3_match); #endif +#ifdef CONFIG_PM_SLEEP +static int dwc3_exynos_suspend(struct device *dev) +{ + struct dwc3_exynos *exynos = dev_get_drvdata(dev); + + clk_disable(exynos->clk); + + return 0; +} + +static int dwc3_exynos_resume(struct device *dev) +{ + struct dwc3_exynos *exynos = dev_get_drvdata(dev); + + clk_enable(exynos->clk); + + /* runtime set active to reflect active state. */ + pm_runtime_disable(dev); + pm_runtime_set_active(dev); + pm_runtime_enable(dev); + + return 0; +} + +static const struct dev_pm_ops dwc3_exynos_dev_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(dwc3_exynos_suspend, dwc3_exynos_resume) +}; + +#define DEV_PM_OPS (&dwc3_exynos_dev_pm_ops) +#else +#define DEV_PM_OPS NULL +#endif /* CONFIG_PM_SLEEP */ + static struct platform_driver dwc3_exynos_driver = { .probe = dwc3_exynos_probe, .remove = dwc3_exynos_remove, .driver = { .name = "exynos-dwc3", .of_match_table = of_match_ptr(exynos_dwc3_match), + .pm = DEV_PM_OPS, }, }; diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c index afa05e3c9cf4..34638b92500d 100644 --- a/drivers/usb/dwc3/dwc3-omap.c +++ b/drivers/usb/dwc3/dwc3-omap.c @@ -52,7 +52,6 @@ #include <linux/of_platform.h> #include <linux/usb/otg.h> -#include <linux/usb/nop-usb-xceiv.h> /* * All these registers belong to OMAP's Wrapper around the @@ -117,20 +116,17 @@ struct dwc3_omap { /* device lock */ spinlock_t lock; - struct platform_device *usb2_phy; - struct platform_device *usb3_phy; struct device *dev; int irq; void __iomem *base; - void *context; - u32 resource_size; + u32 utmi_otg_status; u32 dma_status:1; }; -struct dwc3_omap *_omap; +static struct dwc3_omap *_omap; static inline u32 dwc3_omap_readl(void __iomem *base, u32 offset) { @@ -142,11 +138,14 @@ static inline void dwc3_omap_writel(void __iomem *base, u32 offset, u32 value) writel(value, base + offset); } -void dwc3_omap_mailbox(enum omap_dwc3_vbus_id_status status) +int dwc3_omap_mailbox(enum omap_dwc3_vbus_id_status status) { u32 val; struct dwc3_omap *omap = _omap; + if (!omap) + return -EPROBE_DEFER; + switch (status) { case OMAP_DWC3_ID_GROUND: dev_dbg(omap->dev, "ID GND\n"); @@ -189,63 +188,9 @@ void dwc3_omap_mailbox(enum omap_dwc3_vbus_id_status status) dev_dbg(omap->dev, "ID float\n"); } - return; -} -EXPORT_SYMBOL_GPL(dwc3_omap_mailbox); - -static int dwc3_omap_register_phys(struct dwc3_omap *omap) -{ - struct nop_usb_xceiv_platform_data pdata; - struct platform_device *pdev; - int ret; - - memset(&pdata, 0x00, sizeof(pdata)); - - pdev = platform_device_alloc("nop_usb_xceiv", PLATFORM_DEVID_AUTO); - if (!pdev) - return -ENOMEM; - - omap->usb2_phy = pdev; - pdata.type = USB_PHY_TYPE_USB2; - - ret = platform_device_add_data(omap->usb2_phy, &pdata, sizeof(pdata)); - if (ret) - goto err1; - - pdev = platform_device_alloc("nop_usb_xceiv", PLATFORM_DEVID_AUTO); - if (!pdev) { - ret = -ENOMEM; - goto err1; - } - - omap->usb3_phy = pdev; - pdata.type = USB_PHY_TYPE_USB3; - - ret = platform_device_add_data(omap->usb3_phy, &pdata, sizeof(pdata)); - if (ret) - goto err2; - - ret = platform_device_add(omap->usb2_phy); - if (ret) - goto err2; - - ret = platform_device_add(omap->usb3_phy); - if (ret) - goto err3; - return 0; - -err3: - platform_device_del(omap->usb2_phy); - -err2: - platform_device_put(omap->usb3_phy); - -err1: - platform_device_put(omap->usb2_phy); - - return ret; } +EXPORT_SYMBOL_GPL(dwc3_omap_mailbox); static irqreturn_t dwc3_omap_interrupt(int irq, void *_omap) { @@ -307,24 +252,57 @@ static int dwc3_omap_remove_core(struct device *dev, void *c) return 0; } +static void dwc3_omap_enable_irqs(struct dwc3_omap *omap) +{ + u32 reg; + + /* enable all IRQs */ + reg = USBOTGSS_IRQO_COREIRQ_ST; + dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_SET_0, reg); + + reg = (USBOTGSS_IRQ1_OEVT | + USBOTGSS_IRQ1_DRVVBUS_RISE | + USBOTGSS_IRQ1_CHRGVBUS_RISE | + USBOTGSS_IRQ1_DISCHRGVBUS_RISE | + USBOTGSS_IRQ1_IDPULLUP_RISE | + USBOTGSS_IRQ1_DRVVBUS_FALL | + USBOTGSS_IRQ1_CHRGVBUS_FALL | + USBOTGSS_IRQ1_DISCHRGVBUS_FALL | + USBOTGSS_IRQ1_IDPULLUP_FALL); + + dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_SET_1, reg); +} + +static void dwc3_omap_disable_irqs(struct dwc3_omap *omap) +{ + /* disable all IRQs */ + dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_SET_1, 0x00); + dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_SET_0, 0x00); +} + +static u64 dwc3_omap_dma_mask = DMA_BIT_MASK(32); + static int dwc3_omap_probe(struct platform_device *pdev) { - struct dwc3_omap_data *pdata = pdev->dev.platform_data; struct device_node *node = pdev->dev.of_node; struct dwc3_omap *omap; struct resource *res; struct device *dev = &pdev->dev; - int size; int ret = -ENOMEM; int irq; - const u32 *utmi_mode; + int utmi_mode = 0; + u32 reg; void __iomem *base; - void *context; + + if (!node) { + dev_err(dev, "device node not found\n"); + return -EINVAL; + } omap = devm_kzalloc(dev, sizeof(*omap), GFP_KERNEL); if (!omap) { @@ -334,13 +312,13 @@ static int dwc3_omap_probe(struct platform_device *pdev) platform_set_drvdata(pdev, omap); - irq = platform_get_irq(pdev, 1); + irq = platform_get_irq(pdev, 0); if (irq < 0) { dev_err(dev, "missing IRQ resource\n"); return -EINVAL; } - res = platform_get_resource(pdev, IORESOURCE_MEM, 1); + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_err(dev, "missing memory base resource\n"); return -EINVAL; @@ -352,25 +330,12 @@ static int dwc3_omap_probe(struct platform_device *pdev) return -ENOMEM; } - ret = dwc3_omap_register_phys(omap); - if (ret) { - dev_err(dev, "couldn't register PHYs\n"); - return ret; - } - - context = devm_kzalloc(dev, resource_size(res), GFP_KERNEL); - if (!context) { - dev_err(dev, "couldn't allocate dwc3 context memory\n"); - return -ENOMEM; - } - spin_lock_init(&omap->lock); - omap->resource_size = resource_size(res); - omap->context = context; omap->dev = dev; omap->irq = irq; omap->base = base; + dev->dma_mask = &dwc3_omap_dma_mask; /* * REVISIT if we ever have two instances of the wrapper, we will be @@ -387,25 +352,17 @@ static int dwc3_omap_probe(struct platform_device *pdev) reg = dwc3_omap_readl(omap->base, USBOTGSS_UTMI_OTG_STATUS); - utmi_mode = of_get_property(node, "utmi-mode", &size); - if (utmi_mode && size == sizeof(*utmi_mode)) { - reg |= *utmi_mode; - } else { - if (!pdata) { - dev_dbg(dev, "missing platform data\n"); - } else { - switch (pdata->utmi_mode) { - case DWC3_OMAP_UTMI_MODE_SW: - reg |= USBOTGSS_UTMI_OTG_STATUS_SW_MODE; - break; - case DWC3_OMAP_UTMI_MODE_HW: - reg &= ~USBOTGSS_UTMI_OTG_STATUS_SW_MODE; - break; - default: - dev_dbg(dev, "UNKNOWN utmi mode %d\n", - pdata->utmi_mode); - } - } + of_property_read_u32(node, "utmi-mode", &utmi_mode); + + switch (utmi_mode) { + case DWC3_OMAP_UTMI_MODE_SW: + reg |= USBOTGSS_UTMI_OTG_STATUS_SW_MODE; + break; + case DWC3_OMAP_UTMI_MODE_HW: + reg &= ~USBOTGSS_UTMI_OTG_STATUS_SW_MODE; + break; + default: + dev_dbg(dev, "UNKNOWN utmi mode %d\n", utmi_mode); } dwc3_omap_writel(omap->base, USBOTGSS_UTMI_OTG_STATUS, reg); @@ -422,29 +379,12 @@ static int dwc3_omap_probe(struct platform_device *pdev) return ret; } - /* enable all IRQs */ - reg = USBOTGSS_IRQO_COREIRQ_ST; - dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_SET_0, reg); + dwc3_omap_enable_irqs(omap); - reg = (USBOTGSS_IRQ1_OEVT | - USBOTGSS_IRQ1_DRVVBUS_RISE | - USBOTGSS_IRQ1_CHRGVBUS_RISE | - USBOTGSS_IRQ1_DISCHRGVBUS_RISE | - USBOTGSS_IRQ1_IDPULLUP_RISE | - USBOTGSS_IRQ1_DRVVBUS_FALL | - USBOTGSS_IRQ1_CHRGVBUS_FALL | - USBOTGSS_IRQ1_DISCHRGVBUS_FALL | - USBOTGSS_IRQ1_IDPULLUP_FALL); - - dwc3_omap_writel(omap->base, USBOTGSS_IRQENABLE_SET_1, reg); - - if (node) { - ret = of_platform_populate(node, NULL, NULL, dev); - if (ret) { - dev_err(&pdev->dev, - "failed to add create dwc3 core\n"); - return ret; - } + ret = of_platform_populate(node, NULL, NULL, dev); + if (ret) { + dev_err(&pdev->dev, "failed to create dwc3 core\n"); + return ret; } return 0; @@ -454,8 +394,7 @@ static int dwc3_omap_remove(struct platform_device *pdev) { struct dwc3_omap *omap = platform_get_drvdata(pdev); - platform_device_unregister(omap->usb2_phy); - platform_device_unregister(omap->usb3_phy); + dwc3_omap_disable_irqs(omap); pm_runtime_put_sync(&pdev->dev); pm_runtime_disable(&pdev->dev); device_for_each_child(&pdev->dev, NULL, dwc3_omap_remove_core); @@ -465,18 +404,72 @@ static int dwc3_omap_remove(struct platform_device *pdev) static const struct of_device_id of_dwc3_match[] = { { - "ti,dwc3", + .compatible = "ti,dwc3" }, { }, }; MODULE_DEVICE_TABLE(of, of_dwc3_match); +#ifdef CONFIG_PM_SLEEP +static int dwc3_omap_prepare(struct device *dev) +{ + struct dwc3_omap *omap = dev_get_drvdata(dev); + + dwc3_omap_disable_irqs(omap); + + return 0; +} + +static void dwc3_omap_complete(struct device *dev) +{ + struct dwc3_omap *omap = dev_get_drvdata(dev); + + dwc3_omap_enable_irqs(omap); +} + +static int dwc3_omap_suspend(struct device *dev) +{ + struct dwc3_omap *omap = dev_get_drvdata(dev); + + omap->utmi_otg_status = dwc3_omap_readl(omap->base, + USBOTGSS_UTMI_OTG_STATUS); + + return 0; +} + +static int dwc3_omap_resume(struct device *dev) +{ + struct dwc3_omap *omap = dev_get_drvdata(dev); + + dwc3_omap_writel(omap->base, USBOTGSS_UTMI_OTG_STATUS, + omap->utmi_otg_status); + + pm_runtime_disable(dev); + pm_runtime_set_active(dev); + pm_runtime_enable(dev); + + return 0; +} + +static const struct dev_pm_ops dwc3_omap_dev_pm_ops = { + .prepare = dwc3_omap_prepare, + .complete = dwc3_omap_complete, + + SET_SYSTEM_SLEEP_PM_OPS(dwc3_omap_suspend, dwc3_omap_resume) +}; + +#define DEV_PM_OPS (&dwc3_omap_dev_pm_ops) +#else +#define DEV_PM_OPS NULL +#endif /* CONFIG_PM_SLEEP */ + static struct platform_driver dwc3_omap_driver = { .probe = dwc3_omap_probe, .remove = dwc3_omap_remove, .driver = { .name = "omap-dwc3", .of_match_table = of_dwc3_match, + .pm = DEV_PM_OPS, }, }; diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index e8d77689a322..227d4a7acad7 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -212,11 +212,49 @@ static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = { }; MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table); +#ifdef CONFIG_PM +static int dwc3_pci_suspend(struct device *dev) +{ + struct pci_dev *pci = to_pci_dev(dev); + + pci_disable_device(pci); + + return 0; +} + +static int dwc3_pci_resume(struct device *dev) +{ + struct pci_dev *pci = to_pci_dev(dev); + int ret; + + ret = pci_enable_device(pci); + if (ret) { + dev_err(dev, "can't re-enable device --> %d\n", ret); + return ret; + } + + pci_set_master(pci); + + return 0; +} + +static const struct dev_pm_ops dwc3_pci_dev_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(dwc3_pci_suspend, dwc3_pci_resume) +}; + +#define DEV_PM_OPS (&dwc3_pci_dev_pm_ops) +#else +#define DEV_PM_OPS NULL +#endif /* CONFIG_PM */ + static struct pci_driver dwc3_pci_driver = { .name = "dwc3-pci", .id_table = dwc3_pci_id_table, .probe = dwc3_pci_probe, .remove = dwc3_pci_remove, + .driver = { + .pm = DEV_PM_OPS, + }, }; MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 1d139ca05ef1..5acbb948b704 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -394,10 +394,13 @@ static int dwc3_ep0_handle_feature(struct dwc3 *dwc, u32 wIndex; u32 reg; int ret; + enum usb_device_state state; wValue = le16_to_cpu(ctrl->wValue); wIndex = le16_to_cpu(ctrl->wIndex); recip = ctrl->bRequestType & USB_RECIP_MASK; + state = dwc->gadget.state; + switch (recip) { case USB_RECIP_DEVICE: @@ -409,7 +412,7 @@ static int dwc3_ep0_handle_feature(struct dwc3 *dwc, * default control pipe */ case USB_DEVICE_U1_ENABLE: - if (dwc->dev_state != DWC3_CONFIGURED_STATE) + if (state != USB_STATE_CONFIGURED) return -EINVAL; if (dwc->speed != DWC3_DSTS_SUPERSPEED) return -EINVAL; @@ -423,7 +426,7 @@ static int dwc3_ep0_handle_feature(struct dwc3 *dwc, break; case USB_DEVICE_U2_ENABLE: - if (dwc->dev_state != DWC3_CONFIGURED_STATE) + if (state != USB_STATE_CONFIGURED) return -EINVAL; if (dwc->speed != DWC3_DSTS_SUPERSPEED) return -EINVAL; @@ -493,6 +496,7 @@ static int dwc3_ep0_handle_feature(struct dwc3 *dwc, static int dwc3_ep0_set_address(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl) { + enum usb_device_state state = dwc->gadget.state; u32 addr; u32 reg; @@ -502,7 +506,7 @@ static int dwc3_ep0_set_address(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl) return -EINVAL; } - if (dwc->dev_state == DWC3_CONFIGURED_STATE) { + if (state == USB_STATE_CONFIGURED) { dev_dbg(dwc->dev, "trying to set address when configured\n"); return -EINVAL; } @@ -513,9 +517,9 @@ static int dwc3_ep0_set_address(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl) dwc3_writel(dwc->regs, DWC3_DCFG, reg); if (addr) - dwc->dev_state = DWC3_ADDRESS_STATE; + usb_gadget_set_state(&dwc->gadget, USB_STATE_ADDRESS); else - dwc->dev_state = DWC3_DEFAULT_STATE; + usb_gadget_set_state(&dwc->gadget, USB_STATE_DEFAULT); return 0; } @@ -532,6 +536,7 @@ static int dwc3_ep0_delegate_req(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl) static int dwc3_ep0_set_config(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl) { + enum usb_device_state state = dwc->gadget.state; u32 cfg; int ret; u32 reg; @@ -539,16 +544,18 @@ static int dwc3_ep0_set_config(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl) dwc->start_config_issued = false; cfg = le16_to_cpu(ctrl->wValue); - switch (dwc->dev_state) { - case DWC3_DEFAULT_STATE: + switch (state) { + case USB_STATE_DEFAULT: return -EINVAL; break; - case DWC3_ADDRESS_STATE: + case USB_STATE_ADDRESS: ret = dwc3_ep0_delegate_req(dwc, ctrl); /* if the cfg matches and the cfg is non zero */ if (cfg && (!ret || (ret == USB_GADGET_DELAYED_STATUS))) { - dwc->dev_state = DWC3_CONFIGURED_STATE; + usb_gadget_set_state(&dwc->gadget, + USB_STATE_CONFIGURED); + /* * Enable transition to U1/U2 state when * nothing is pending from application. @@ -562,10 +569,11 @@ static int dwc3_ep0_set_config(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl) } break; - case DWC3_CONFIGURED_STATE: + case USB_STATE_CONFIGURED: ret = dwc3_ep0_delegate_req(dwc, ctrl); if (!cfg) - dwc->dev_state = DWC3_ADDRESS_STATE; + usb_gadget_set_state(&dwc->gadget, + USB_STATE_ADDRESS); break; default: ret = -EINVAL; @@ -620,10 +628,11 @@ static void dwc3_ep0_set_sel_cmpl(struct usb_ep *ep, struct usb_request *req) static int dwc3_ep0_set_sel(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl) { struct dwc3_ep *dep; + enum usb_device_state state = dwc->gadget.state; u16 wLength; u16 wValue; - if (dwc->dev_state == DWC3_DEFAULT_STATE) + if (state == USB_STATE_DEFAULT) return -EINVAL; wValue = le16_to_cpu(ctrl->wValue); diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 82e160e96fca..2b6e7e001207 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1425,8 +1425,10 @@ static int dwc3_gadget_run_stop(struct dwc3 *dwc, int is_on) if (dwc->revision >= DWC3_REVISION_194A) reg &= ~DWC3_DCTL_KEEP_CONNECT; reg |= DWC3_DCTL_RUN_STOP; + dwc->pullups_connected = true; } else { reg &= ~DWC3_DCTL_RUN_STOP; + dwc->pullups_connected = false; } dwc3_writel(dwc->regs, DWC3_DCTL, reg); @@ -1469,6 +1471,33 @@ static int dwc3_gadget_pullup(struct usb_gadget *g, int is_on) return ret; } +static void dwc3_gadget_enable_irq(struct dwc3 *dwc) +{ + u32 reg; + + /* Enable all but Start and End of Frame IRQs */ + reg = (DWC3_DEVTEN_VNDRDEVTSTRCVEDEN | + DWC3_DEVTEN_EVNTOVERFLOWEN | + DWC3_DEVTEN_CMDCMPLTEN | + DWC3_DEVTEN_ERRTICERREN | + DWC3_DEVTEN_WKUPEVTEN | + DWC3_DEVTEN_ULSTCNGEN | + DWC3_DEVTEN_CONNECTDONEEN | + DWC3_DEVTEN_USBRSTEN | + DWC3_DEVTEN_DISCONNEVTEN); + + dwc3_writel(dwc->regs, DWC3_DEVTEN, reg); +} + +static void dwc3_gadget_disable_irq(struct dwc3 *dwc) +{ + /* mask all interrupts */ + dwc3_writel(dwc->regs, DWC3_DEVTEN, 0x00); +} + +static irqreturn_t dwc3_interrupt(int irq, void *_dwc); +static irqreturn_t dwc3_thread_interrupt(int irq, void *_dwc); + static int dwc3_gadget_start(struct usb_gadget *g, struct usb_gadget_driver *driver) { @@ -1476,6 +1505,7 @@ static int dwc3_gadget_start(struct usb_gadget *g, struct dwc3_ep *dep; unsigned long flags; int ret = 0; + int irq; u32 reg; spin_lock_irqsave(&dwc->lock, flags); @@ -1489,7 +1519,6 @@ static int dwc3_gadget_start(struct usb_gadget *g, } dwc->gadget_driver = driver; - dwc->gadget.dev.driver = &driver->driver; reg = dwc3_readl(dwc->regs, DWC3_DCFG); reg &= ~(DWC3_DCFG_SPEED_MASK); @@ -1536,6 +1565,17 @@ static int dwc3_gadget_start(struct usb_gadget *g, dwc->ep0state = EP0_SETUP_PHASE; dwc3_ep0_out_start(dwc); + irq = platform_get_irq(to_platform_device(dwc->dev), 0); + ret = request_threaded_irq(irq, dwc3_interrupt, dwc3_thread_interrupt, + IRQF_SHARED | IRQF_ONESHOT, "dwc3", dwc); + if (ret) { + dev_err(dwc->dev, "failed to request irq #%d --> %d\n", + irq, ret); + goto err1; + } + + dwc3_gadget_enable_irq(dwc); + spin_unlock_irqrestore(&dwc->lock, flags); return 0; @@ -1554,14 +1594,18 @@ static int dwc3_gadget_stop(struct usb_gadget *g, { struct dwc3 *dwc = gadget_to_dwc(g); unsigned long flags; + int irq; spin_lock_irqsave(&dwc->lock, flags); + dwc3_gadget_disable_irq(dwc); + irq = platform_get_irq(to_platform_device(dwc->dev), 0); + free_irq(irq, dwc); + __dwc3_gadget_ep_disable(dwc->eps[0]); __dwc3_gadget_ep_disable(dwc->eps[1]); dwc->gadget_driver = NULL; - dwc->gadget.dev.driver = NULL; spin_unlock_irqrestore(&dwc->lock, flags); @@ -1579,14 +1623,15 @@ static const struct usb_gadget_ops dwc3_gadget_ops = { /* -------------------------------------------------------------------------- */ -static int dwc3_gadget_init_endpoints(struct dwc3 *dwc) +static int dwc3_gadget_init_hw_endpoints(struct dwc3 *dwc, + u8 num, u32 direction) { struct dwc3_ep *dep; - u8 epnum; + u8 i; - INIT_LIST_HEAD(&dwc->gadget.ep_list); + for (i = 0; i < num; i++) { + u8 epnum = (i << 1) | (!!direction); - for (epnum = 0; epnum < DWC3_ENDPOINTS_NUM; epnum++) { dep = kzalloc(sizeof(*dep), GFP_KERNEL); if (!dep) { dev_err(dwc->dev, "can't allocate endpoint %d\n", @@ -1600,6 +1645,7 @@ static int dwc3_gadget_init_endpoints(struct dwc3 *dwc) snprintf(dep->name, sizeof(dep->name), "ep%d%s", epnum >> 1, (epnum & 1) ? "in" : "out"); + dep->endpoint.name = dep->name; dep->direction = (epnum & 1); @@ -1630,6 +1676,27 @@ static int dwc3_gadget_init_endpoints(struct dwc3 *dwc) return 0; } +static int dwc3_gadget_init_endpoints(struct dwc3 *dwc) +{ + int ret; + + INIT_LIST_HEAD(&dwc->gadget.ep_list); + + ret = dwc3_gadget_init_hw_endpoints(dwc, dwc->num_out_eps, 0); + if (ret < 0) { + dev_vdbg(dwc->dev, "failed to allocate OUT endpoints\n"); + return ret; + } + + ret = dwc3_gadget_init_hw_endpoints(dwc, dwc->num_in_eps, 1); + if (ret < 0) { + dev_vdbg(dwc->dev, "failed to allocate IN endpoints\n"); + return ret; + } + + return 0; +} + static void dwc3_gadget_free_endpoints(struct dwc3 *dwc) { struct dwc3_ep *dep; @@ -1637,6 +1704,9 @@ static void dwc3_gadget_free_endpoints(struct dwc3 *dwc) for (epnum = 0; epnum < DWC3_ENDPOINTS_NUM; epnum++) { dep = dwc->eps[epnum]; + if (!dep) + continue; + dwc3_free_trb_pool(dep); if (epnum != 0 && epnum != 1) @@ -1646,12 +1716,8 @@ static void dwc3_gadget_free_endpoints(struct dwc3 *dwc) } } -static void dwc3_gadget_release(struct device *dev) -{ - dev_dbg(dev, "%s\n", __func__); -} - /* -------------------------------------------------------------------------- */ + static int __dwc3_cleanup_done_trbs(struct dwc3 *dwc, struct dwc3_ep *dep, struct dwc3_request *req, struct dwc3_trb *trb, const struct dwc3_event_depevt *event, int status) @@ -1975,6 +2041,9 @@ static void dwc3_stop_active_transfers(struct dwc3 *dwc) struct dwc3_ep *dep; dep = dwc->eps[epnum]; + if (!dep) + continue; + if (!(dep->flags & DWC3_EP_ENABLED)) continue; @@ -1992,6 +2061,8 @@ static void dwc3_clear_stall_all_ep(struct dwc3 *dwc) int ret; dep = dwc->eps[epnum]; + if (!dep) + continue; if (!(dep->flags & DWC3_EP_STALL)) continue; @@ -2091,7 +2162,7 @@ static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc) } /* after reset -> Default State */ - dwc->dev_state = DWC3_DEFAULT_STATE; + usb_gadget_set_state(&dwc->gadget, USB_STATE_DEFAULT); /* Recent versions support automatic phy suspend and don't need this */ if (dwc->revision < DWC3_REVISION_194A) { @@ -2277,6 +2348,34 @@ static void dwc3_gadget_linksts_change_interrupt(struct dwc3 *dwc, unsigned int evtinfo) { enum dwc3_link_state next = evtinfo & DWC3_LINK_STATE_MASK; + unsigned int pwropt; + + /* + * WORKAROUND: DWC3 < 2.50a have an issue when configured without + * Hibernation mode enabled which would show up when device detects + * host-initiated U3 exit. + * + * In that case, device will generate a Link State Change Interrupt + * from U3 to RESUME which is only necessary if Hibernation is + * configured in. + * + * There are no functional changes due to such spurious event and we + * just need to ignore it. + * + * Refers to: + * + * STAR#9000570034 RTL: SS Resume event generated in non-Hibernation + * operational mode + */ + pwropt = DWC3_GHWPARAMS1_EN_PWROPT(dwc->hwparams.hwparams1); + if ((dwc->revision < DWC3_REVISION_250A) && + (pwropt != DWC3_GHWPARAMS1_EN_PWROPT_HIB)) { + if ((dwc->link_state == DWC3_LINK_STATE_U3) && + (next == DWC3_LINK_STATE_RESUME)) { + dev_vdbg(dwc->dev, "ignoring transition U3 -> Resume\n"); + return; + } + } /* * WORKAROUND: DWC3 Revisions <1.83a have an issue which, depending @@ -2387,40 +2486,73 @@ static void dwc3_process_event_entry(struct dwc3 *dwc, } } +static irqreturn_t dwc3_thread_interrupt(int irq, void *_dwc) +{ + struct dwc3 *dwc = _dwc; + unsigned long flags; + irqreturn_t ret = IRQ_NONE; + int i; + + spin_lock_irqsave(&dwc->lock, flags); + + for (i = 0; i < dwc->num_event_buffers; i++) { + struct dwc3_event_buffer *evt; + int left; + + evt = dwc->ev_buffs[i]; + left = evt->count; + + if (!(evt->flags & DWC3_EVENT_PENDING)) + continue; + + while (left > 0) { + union dwc3_event event; + + event.raw = *(u32 *) (evt->buf + evt->lpos); + + dwc3_process_event_entry(dwc, &event); + + /* + * FIXME we wrap around correctly to the next entry as + * almost all entries are 4 bytes in size. There is one + * entry which has 12 bytes which is a regular entry + * followed by 8 bytes data. ATM I don't know how + * things are organized if we get next to the a + * boundary so I worry about that once we try to handle + * that. + */ + evt->lpos = (evt->lpos + 4) % DWC3_EVENT_BUFFERS_SIZE; + left -= 4; + + dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(i), 4); + } + + evt->count = 0; + evt->flags &= ~DWC3_EVENT_PENDING; + ret = IRQ_HANDLED; + } + + spin_unlock_irqrestore(&dwc->lock, flags); + + return ret; +} + static irqreturn_t dwc3_process_event_buf(struct dwc3 *dwc, u32 buf) { struct dwc3_event_buffer *evt; - int left; u32 count; + evt = dwc->ev_buffs[buf]; + count = dwc3_readl(dwc->regs, DWC3_GEVNTCOUNT(buf)); count &= DWC3_GEVNTCOUNT_MASK; if (!count) return IRQ_NONE; - evt = dwc->ev_buffs[buf]; - left = count; - - while (left > 0) { - union dwc3_event event; - - event.raw = *(u32 *) (evt->buf + evt->lpos); + evt->count = count; + evt->flags |= DWC3_EVENT_PENDING; - dwc3_process_event_entry(dwc, &event); - /* - * XXX we wrap around correctly to the next entry as almost all - * entries are 4 bytes in size. There is one entry which has 12 - * bytes which is a regular entry followed by 8 bytes data. ATM - * I don't know how things are organized if were get next to the - * a boundary so I worry about that once we try to handle that. - */ - evt->lpos = (evt->lpos + 4) % DWC3_EVENT_BUFFERS_SIZE; - left -= 4; - - dwc3_writel(dwc->regs, DWC3_GEVNTCOUNT(buf), 4); - } - - return IRQ_HANDLED; + return IRQ_WAKE_THREAD; } static irqreturn_t dwc3_interrupt(int irq, void *_dwc) @@ -2435,7 +2567,7 @@ static irqreturn_t dwc3_interrupt(int irq, void *_dwc) irqreturn_t status; status = dwc3_process_event_buf(dwc, i); - if (status == IRQ_HANDLED) + if (status == IRQ_WAKE_THREAD) ret = status; } @@ -2454,7 +2586,6 @@ int dwc3_gadget_init(struct dwc3 *dwc) { u32 reg; int ret; - int irq; dwc->ctrl_req = dma_alloc_coherent(dwc->dev, sizeof(*dwc->ctrl_req), &dwc->ctrl_req_addr, GFP_KERNEL); @@ -2488,19 +2619,10 @@ int dwc3_gadget_init(struct dwc3 *dwc) goto err3; } - dev_set_name(&dwc->gadget.dev, "gadget"); - dwc->gadget.ops = &dwc3_gadget_ops; dwc->gadget.max_speed = USB_SPEED_SUPER; dwc->gadget.speed = USB_SPEED_UNKNOWN; - dwc->gadget.dev.parent = dwc->dev; dwc->gadget.sg_supported = true; - - dma_set_coherent_mask(&dwc->gadget.dev, dwc->dev->coherent_dma_mask); - - dwc->gadget.dev.dma_parms = dwc->dev->dma_parms; - dwc->gadget.dev.dma_mask = dwc->dev->dma_mask; - dwc->gadget.dev.release = dwc3_gadget_release; dwc->gadget.name = "dwc3-gadget"; /* @@ -2512,60 +2634,24 @@ int dwc3_gadget_init(struct dwc3 *dwc) if (ret) goto err4; - irq = platform_get_irq(to_platform_device(dwc->dev), 0); - - ret = request_irq(irq, dwc3_interrupt, IRQF_SHARED, - "dwc3", dwc); - if (ret) { - dev_err(dwc->dev, "failed to request irq #%d --> %d\n", - irq, ret); - goto err5; - } - reg = dwc3_readl(dwc->regs, DWC3_DCFG); reg |= DWC3_DCFG_LPM_CAP; dwc3_writel(dwc->regs, DWC3_DCFG, reg); - /* Enable all but Start and End of Frame IRQs */ - reg = (DWC3_DEVTEN_VNDRDEVTSTRCVEDEN | - DWC3_DEVTEN_EVNTOVERFLOWEN | - DWC3_DEVTEN_CMDCMPLTEN | - DWC3_DEVTEN_ERRTICERREN | - DWC3_DEVTEN_WKUPEVTEN | - DWC3_DEVTEN_ULSTCNGEN | - DWC3_DEVTEN_CONNECTDONEEN | - DWC3_DEVTEN_USBRSTEN | - DWC3_DEVTEN_DISCONNEVTEN); - dwc3_writel(dwc->regs, DWC3_DEVTEN, reg); - - /* automatic phy suspend only on recent versions */ + /* Enable USB2 LPM and automatic phy suspend only on recent versions */ if (dwc->revision >= DWC3_REVISION_194A) { dwc3_gadget_usb2_phy_suspend(dwc, false); dwc3_gadget_usb3_phy_suspend(dwc, false); } - ret = device_register(&dwc->gadget.dev); - if (ret) { - dev_err(dwc->dev, "failed to register gadget device\n"); - put_device(&dwc->gadget.dev); - goto err6; - } - ret = usb_add_gadget_udc(dwc->dev, &dwc->gadget); if (ret) { dev_err(dwc->dev, "failed to register udc\n"); - goto err7; + goto err5; } return 0; -err7: - device_unregister(&dwc->gadget.dev); - -err6: - dwc3_writel(dwc->regs, DWC3_DEVTEN, 0x00); - free_irq(irq, dwc); - err5: dwc3_gadget_free_endpoints(dwc); @@ -2588,15 +2674,11 @@ err0: return ret; } +/* -------------------------------------------------------------------------- */ + void dwc3_gadget_exit(struct dwc3 *dwc) { - int irq; - usb_del_gadget_udc(&dwc->gadget); - irq = platform_get_irq(to_platform_device(dwc->dev), 0); - - dwc3_writel(dwc->regs, DWC3_DEVTEN, 0x00); - free_irq(irq, dwc); dwc3_gadget_free_endpoints(dwc); @@ -2610,6 +2692,63 @@ void dwc3_gadget_exit(struct dwc3 *dwc) dma_free_coherent(dwc->dev, sizeof(*dwc->ctrl_req), dwc->ctrl_req, dwc->ctrl_req_addr); +} - device_unregister(&dwc->gadget.dev); +int dwc3_gadget_prepare(struct dwc3 *dwc) +{ + if (dwc->pullups_connected) + dwc3_gadget_disable_irq(dwc); + + return 0; +} + +void dwc3_gadget_complete(struct dwc3 *dwc) +{ + if (dwc->pullups_connected) { + dwc3_gadget_enable_irq(dwc); + dwc3_gadget_run_stop(dwc, true); + } +} + +int dwc3_gadget_suspend(struct dwc3 *dwc) +{ + __dwc3_gadget_ep_disable(dwc->eps[0]); + __dwc3_gadget_ep_disable(dwc->eps[1]); + + dwc->dcfg = dwc3_readl(dwc->regs, DWC3_DCFG); + + return 0; +} + +int dwc3_gadget_resume(struct dwc3 *dwc) +{ + struct dwc3_ep *dep; + int ret; + + /* Start with SuperSpeed Default */ + dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512); + + dep = dwc->eps[0]; + ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL, false); + if (ret) + goto err0; + + dep = dwc->eps[1]; + ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL, false); + if (ret) + goto err1; + + /* begin to receive SETUP packets */ + dwc->ep0state = EP0_SETUP_PHASE; + dwc3_ep0_out_start(dwc); + + dwc3_writel(dwc->regs, DWC3_DCFG, dwc->dcfg); + + return 0; + +err1: + __dwc3_gadget_ep_disable(dwc->eps[0]); + +err0: + return ret; } diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index c7525b1cad74..a61d981cbd15 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -196,7 +196,6 @@ config USB_OMAP tristate "OMAP USB Device Controller" depends on ARCH_OMAP1 select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_H4_OTG - select USB_OTG_UTILS if ARCH_OMAP help Many Texas Instruments OMAP processors have flexible full speed USB device controllers, with support for up to 30 @@ -211,7 +210,6 @@ config USB_OMAP config USB_PXA25X tristate "PXA 25x or IXP 4xx" depends on (ARCH_PXA && PXA25x) || ARCH_IXP4XX - select USB_OTG_UTILS help Intel's PXA 25x series XScale ARM-5TE processors include an integrated full speed USB 1.1 device controller. The @@ -259,8 +257,6 @@ config USB_RENESAS_USBHS_UDC config USB_PXA27X tristate "PXA 27x" - depends on ARCH_PXA && (PXA27x || PXA3xx) - select USB_OTG_UTILS help Intel's PXA 27x series XScale ARM v5TE processors include an integrated full speed USB 1.1 device controller. @@ -329,9 +325,6 @@ config USB_MV_UDC config USB_MV_U3D tristate "MARVELL PXA2128 USB 3.0 controller" - depends on CPU_MMP3 - select USB_GADGET_DUALSPEED - select USB_GADGET_SUPERSPEED help MARVELL PXA2128 Processor series include a super speed USB3.0 device controller, which support super speed USB peripheral. @@ -501,6 +494,7 @@ endmenu # composite based drivers config USB_LIBCOMPOSITE tristate + select CONFIGFS_FS depends on USB_GADGET config USB_F_ACM @@ -512,6 +506,12 @@ config USB_F_SS_LB config USB_U_SERIAL tristate +config USB_F_SERIAL + tristate + +config USB_F_OBEX + tristate + choice tristate "USB Gadget Drivers" default USB_ETH @@ -766,6 +766,8 @@ config USB_G_SERIAL depends on TTY select USB_U_SERIAL select USB_F_ACM + select USB_F_SERIAL + select USB_F_OBEX select USB_LIBCOMPOSITE help The Serial Gadget talks to the Linux-USB generic serial driver. @@ -839,6 +841,7 @@ config USB_G_NOKIA depends on PHONET select USB_LIBCOMPOSITE select USB_U_SERIAL + select USB_F_ACM help The Nokia composite gadget provides support for acm, obex and phonet in only one composite gadget driver. @@ -957,6 +960,7 @@ config USB_G_WEBCAM tristate "USB Webcam Gadget" depends on VIDEO_DEV select USB_LIBCOMPOSITE + select VIDEOBUF2_VMALLOC help The Webcam Gadget acts as a composite USB Audio and Video Class device. It provides a userspace API to process UVC control requests diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile index 82fb22511356..6afd16659e78 100644 --- a/drivers/usb/gadget/Makefile +++ b/drivers/usb/gadget/Makefile @@ -6,7 +6,7 @@ ccflags-$(CONFIG_USB_GADGET_DEBUG) := -DDEBUG obj-$(CONFIG_USB_GADGET) += udc-core.o obj-$(CONFIG_USB_LIBCOMPOSITE) += libcomposite.o libcomposite-y := usbstring.o config.o epautoconf.o -libcomposite-y += composite.o functions.o +libcomposite-y += composite.o functions.o configfs.o obj-$(CONFIG_USB_DUMMY_HCD) += dummy_hcd.o obj-$(CONFIG_USB_NET2272) += net2272.o obj-$(CONFIG_USB_NET2280) += net2280.o @@ -36,10 +36,15 @@ obj-$(CONFIG_USB_FUSB300) += fusb300_udc.o obj-$(CONFIG_USB_MV_U3D) += mv_u3d_core.o # USB Functions -obj-$(CONFIG_USB_F_ACM) += f_acm.o -f_ss_lb-y := f_loopback.o f_sourcesink.o -obj-$(CONFIG_USB_F_SS_LB) += f_ss_lb.o +usb_f_acm-y := f_acm.o +obj-$(CONFIG_USB_F_ACM) += usb_f_acm.o +usb_f_ss_lb-y := f_loopback.o f_sourcesink.o +obj-$(CONFIG_USB_F_SS_LB) += usb_f_ss_lb.o obj-$(CONFIG_USB_U_SERIAL) += u_serial.o +usb_f_serial-y := f_serial.o +obj-$(CONFIG_USB_F_SERIAL) += usb_f_serial.o +usb_f_obex-y := f_obex.o +obj-$(CONFIG_USB_F_OBEX) += usb_f_obex.o # # USB gadget drivers diff --git a/drivers/usb/gadget/acm_ms.c b/drivers/usb/gadget/acm_ms.c index 8f2b0e391534..4b947bb50f62 100644 --- a/drivers/usb/gadget/acm_ms.c +++ b/drivers/usb/gadget/acm_ms.c @@ -109,7 +109,6 @@ FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data); static struct fsg_common fsg_common; /*-------------------------------------------------------------------------*/ -static unsigned char tty_line; static struct usb_function *f_acm; static struct usb_function_instance *f_acm_inst; /* @@ -117,7 +116,6 @@ static struct usb_function_instance *f_acm_inst; */ static int __init acm_ms_do_config(struct usb_configuration *c) { - struct f_serial_opts *opts; int status; if (gadget_is_otg(c->cdev->gadget)) { @@ -129,9 +127,6 @@ static int __init acm_ms_do_config(struct usb_configuration *c) if (IS_ERR(f_acm_inst)) return PTR_ERR(f_acm_inst); - opts = container_of(f_acm_inst, struct f_serial_opts, func_inst); - opts->port_num = tty_line; - f_acm = usb_get_function(f_acm_inst); if (IS_ERR(f_acm)) { status = PTR_ERR(f_acm); @@ -171,16 +166,11 @@ static int __init acm_ms_bind(struct usb_composite_dev *cdev) int status; void *retp; - /* set up serial link layer */ - status = gserial_alloc_line(&tty_line); - if (status < 0) - return status; - /* set up mass storage function */ retp = fsg_common_from_params(&fsg_common, cdev, &fsg_mod_data); if (IS_ERR(retp)) { status = PTR_ERR(retp); - goto fail0; + return PTR_ERR(retp); } /* @@ -207,8 +197,6 @@ static int __init acm_ms_bind(struct usb_composite_dev *cdev) /* error recovery */ fail1: fsg_common_put(&fsg_common); -fail0: - gserial_free_line(tty_line); return status; } @@ -216,7 +204,6 @@ static int __exit acm_ms_unbind(struct usb_composite_dev *cdev) { usb_put_function(f_acm); usb_put_function_instance(f_acm_inst); - gserial_free_line(tty_line); return 0; } diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c index 75973f33a4c8..f52dcfe8f545 100644 --- a/drivers/usb/gadget/amd5536udc.c +++ b/drivers/usb/gadget/amd5536udc.c @@ -1922,7 +1922,6 @@ static int amd5536_udc_start(struct usb_gadget *g, driver->driver.bus = NULL; dev->driver = driver; - dev->gadget.dev.driver = &driver->driver; /* Some gadget drivers use both ep0 directions. * NOTE: to gadget driver, ep0 is just one endpoint... @@ -1973,7 +1972,6 @@ static int amd5536_udc_stop(struct usb_gadget *g, shutdown(dev, driver); spin_unlock_irqrestore(&dev->lock, flags); - dev->gadget.dev.driver = NULL; dev->driver = NULL; /* set SD */ @@ -3080,7 +3078,6 @@ static void udc_pci_remove(struct pci_dev *pdev) if (dev->active) pci_disable_device(pdev); - device_unregister(&dev->gadget.dev); pci_set_drvdata(pdev, NULL); udc_remove(dev); @@ -3245,8 +3242,6 @@ static int udc_pci_probe( dev->phys_addr = resource; dev->irq = pdev->irq; dev->pdev = pdev; - dev->gadget.dev.parent = &pdev->dev; - dev->gadget.dev.dma_mask = pdev->dev.dma_mask; /* general probing */ if (udc_probe(dev) == 0) @@ -3273,7 +3268,6 @@ static int udc_probe(struct udc *dev) dev->gadget.ops = &udc_ops; dev_set_name(&dev->gadget.dev, "gadget"); - dev->gadget.dev.release = gadget_release; dev->gadget.name = name; dev->gadget.max_speed = USB_SPEED_HIGH; @@ -3297,17 +3291,11 @@ static int udc_probe(struct udc *dev) "driver version: %s(for Geode5536 B1)\n", tmp); udc = dev; - retval = usb_add_gadget_udc(&udc->pdev->dev, &dev->gadget); + retval = usb_add_gadget_udc_release(&udc->pdev->dev, &dev->gadget, + gadget_release); if (retval) goto finished; - retval = device_register(&dev->gadget.dev); - if (retval) { - usb_del_gadget_udc(&dev->gadget); - put_device(&dev->gadget.dev); - goto finished; - } - /* timer init */ init_timer(&udc_timer); udc_timer.function = udc_timer_function; diff --git a/drivers/usb/gadget/amd5536udc.h b/drivers/usb/gadget/amd5536udc.h index f1bf32e6b8d8..6744d3b83109 100644 --- a/drivers/usb/gadget/amd5536udc.h +++ b/drivers/usb/gadget/amd5536udc.h @@ -472,7 +472,6 @@ struct udc_request { /* flags */ unsigned dma_going : 1, - dma_mapping : 1, dma_done : 1; /* phys. address */ dma_addr_t td_phys; diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index 45dd2929a671..a690d64217f4 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -1631,7 +1631,6 @@ static int at91_start(struct usb_gadget *gadget, udc = container_of(gadget, struct at91_udc, gadget); udc->driver = driver; - udc->gadget.dev.driver = &driver->driver; udc->gadget.dev.of_node = udc->pdev->dev.of_node; udc->enabled = 1; udc->selfpowered = 1; @@ -1652,7 +1651,6 @@ static int at91_stop(struct usb_gadget *gadget, at91_udp_write(udc, AT91_UDP_IDR, ~0); spin_unlock_irqrestore(&udc->lock, flags); - udc->gadget.dev.driver = NULL; udc->driver = NULL; DBG("unbound from %s\n", driver->driver.name); @@ -1780,13 +1778,7 @@ static int at91udc_probe(struct platform_device *pdev) DBG("clocks missing\n"); retval = -ENODEV; /* NOTE: we "know" here that refcounts on these are NOPs */ - goto fail0b; - } - - retval = device_register(&udc->gadget.dev); - if (retval < 0) { - put_device(&udc->gadget.dev); - goto fail0b; + goto fail1; } /* don't do anything until we have both gadget driver and VBUS */ @@ -1857,8 +1849,6 @@ fail3: fail2: free_irq(udc->udp_irq, udc); fail1: - device_unregister(&udc->gadget.dev); -fail0b: iounmap(udc->udp_baseaddr); fail0a: if (cpu_is_at91rm9200()) @@ -1892,8 +1882,6 @@ static int __exit at91udc_remove(struct platform_device *pdev) gpio_free(udc->board.vbus_pin); } free_irq(udc->udp_irq, udc); - device_unregister(&udc->gadget.dev); - iounmap(udc->udp_baseaddr); if (cpu_is_at91rm9200()) diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c index b66130c97269..f2a970f75bfa 100644 --- a/drivers/usb/gadget/atmel_usba_udc.c +++ b/drivers/usb/gadget/atmel_usba_udc.c @@ -489,13 +489,8 @@ request_complete(struct usba_ep *ep, struct usba_request *req, int status) if (req->req.status == -EINPROGRESS) req->req.status = status; - if (req->mapped) { - dma_unmap_single( - &udc->pdev->dev, req->req.dma, req->req.length, - ep->is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE); - req->req.dma = DMA_ADDR_INVALID; - req->mapped = 0; - } + if (req->using_dma) + usb_gadget_unmap_request(&udc->gadget, &req->req, ep->is_in); DBG(DBG_GADGET | DBG_REQ, "%s: req %p complete: status %d, actual %u\n", @@ -684,7 +679,6 @@ usba_ep_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags) return NULL; INIT_LIST_HEAD(&req->queue); - req->req.dma = DMA_ADDR_INVALID; return &req->req; } @@ -717,20 +711,11 @@ static int queue_dma(struct usba_udc *udc, struct usba_ep *ep, return -EINVAL; } - req->using_dma = 1; - - if (req->req.dma == DMA_ADDR_INVALID) { - req->req.dma = dma_map_single( - &udc->pdev->dev, req->req.buf, req->req.length, - ep->is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE); - req->mapped = 1; - } else { - dma_sync_single_for_device( - &udc->pdev->dev, req->req.dma, req->req.length, - ep->is_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE); - req->mapped = 0; - } + ret = usb_gadget_map_request(&udc->gadget, &req->req, ep->is_in); + if (ret) + return ret; + req->using_dma = 1; req->ctrl = USBA_BF(DMA_BUF_LEN, req->req.length) | USBA_DMA_CH_EN | USBA_DMA_END_BUF_IE | USBA_DMA_END_TR_EN | USBA_DMA_END_TR_IE; @@ -1799,7 +1784,6 @@ static int atmel_usba_start(struct usb_gadget *gadget, udc->devstatus = 1 << USB_DEVICE_SELF_POWERED; udc->driver = driver; - udc->gadget.dev.driver = &driver->driver; spin_unlock_irqrestore(&udc->lock, flags); clk_enable(udc->pclk); @@ -1841,7 +1825,6 @@ static int atmel_usba_stop(struct usb_gadget *gadget, toggle_bias(0); usba_writel(udc, CTRL, USBA_DISABLE_MASK); - udc->gadget.dev.driver = NULL; udc->driver = NULL; clk_disable(udc->hclk); @@ -1900,10 +1883,6 @@ static int __init usba_udc_probe(struct platform_device *pdev) dev_info(&pdev->dev, "FIFO at 0x%08lx mapped at %p\n", (unsigned long)fifo->start, udc->fifo); - device_initialize(&udc->gadget.dev); - udc->gadget.dev.parent = &pdev->dev; - udc->gadget.dev.dma_mask = pdev->dev.dma_mask; - platform_set_drvdata(pdev, udc); /* Make sure we start from a clean slate */ @@ -1962,12 +1941,6 @@ static int __init usba_udc_probe(struct platform_device *pdev) } udc->irq = irq; - ret = device_add(&udc->gadget.dev); - if (ret) { - dev_dbg(&pdev->dev, "Could not add gadget: %d\n", ret); - goto err_device_add; - } - if (gpio_is_valid(pdata->vbus_pin)) { if (!gpio_request(pdata->vbus_pin, "atmel_usba_udc")) { udc->vbus_pin = pdata->vbus_pin; @@ -2007,9 +1980,6 @@ err_add_udc: gpio_free(udc->vbus_pin); } - device_unregister(&udc->gadget.dev); - -err_device_add: free_irq(irq, udc); err_request_irq: kfree(usba_ep); @@ -2053,8 +2023,6 @@ static int __exit usba_udc_remove(struct platform_device *pdev) clk_put(udc->hclk); clk_put(udc->pclk); - device_unregister(&udc->gadget.dev); - return 0; } diff --git a/drivers/usb/gadget/atmel_usba_udc.h b/drivers/usb/gadget/atmel_usba_udc.h index 9791259cbda7..d65a61851d3d 100644 --- a/drivers/usb/gadget/atmel_usba_udc.h +++ b/drivers/usb/gadget/atmel_usba_udc.h @@ -216,12 +216,6 @@ #define EP0_EPT_SIZE USBA_EPT_SIZE_64 #define EP0_NR_BANKS 1 -/* - * REVISIT: Try to eliminate this value. Can we rely on req->mapped to - * provide this information? - */ -#define DMA_ADDR_INVALID (~(dma_addr_t)0) - #define FIFO_IOMEM_ID 0 #define CTRL_IOMEM_ID 1 diff --git a/drivers/usb/gadget/bcm63xx_udc.c b/drivers/usb/gadget/bcm63xx_udc.c index 8cc8253f1100..6e6518264c42 100644 --- a/drivers/usb/gadget/bcm63xx_udc.c +++ b/drivers/usb/gadget/bcm63xx_udc.c @@ -1819,7 +1819,6 @@ static int bcm63xx_udc_start(struct usb_gadget *gadget, udc->driver = driver; driver->driver.bus = NULL; - udc->gadget.dev.driver = &driver->driver; udc->gadget.dev.of_node = udc->dev->of_node; spin_unlock_irqrestore(&udc->lock, flags); @@ -1841,7 +1840,6 @@ static int bcm63xx_udc_stop(struct usb_gadget *gadget, spin_lock_irqsave(&udc->lock, flags); udc->driver = NULL; - udc->gadget.dev.driver = NULL; /* * If we switch the PHY too abruptly after dropping D+, the host @@ -2306,17 +2304,6 @@ static void bcm63xx_udc_cleanup_debugfs(struct bcm63xx_udc *udc) ***********************************************************************/ /** - * bcm63xx_udc_gadget_release - Called from device_release(). - * @dev: Unused. - * - * We get a warning if this function doesn't exist, but it's empty because - * we don't have to free any of the memory allocated with the devm_* APIs. - */ -static void bcm63xx_udc_gadget_release(struct device *dev) -{ -} - -/** * bcm63xx_udc_probe - Initialize a new instance of the UDC. * @pdev: Platform device struct from the bcm63xx BSP code. * @@ -2368,13 +2355,9 @@ static int bcm63xx_udc_probe(struct platform_device *pdev) spin_lock_init(&udc->lock); INIT_WORK(&udc->ep0_wq, bcm63xx_ep0_process); - dev_set_name(&udc->gadget.dev, "gadget"); udc->gadget.ops = &bcm63xx_udc_ops; udc->gadget.name = dev_name(dev); - udc->gadget.dev.parent = dev; - udc->gadget.dev.release = bcm63xx_udc_gadget_release; - udc->gadget.dev.dma_mask = dev->dma_mask; if (!pd->use_fullspeed && !use_fullspeed) udc->gadget.max_speed = USB_SPEED_HIGH; @@ -2414,17 +2397,12 @@ static int bcm63xx_udc_probe(struct platform_device *pdev) } } - rc = device_register(&udc->gadget.dev); - if (rc) - goto out_uninit; - bcm63xx_udc_init_debugfs(udc); rc = usb_add_gadget_udc(dev, &udc->gadget); if (!rc) return 0; bcm63xx_udc_cleanup_debugfs(udc); - device_unregister(&udc->gadget.dev); out_uninit: bcm63xx_uninit_udc_hw(udc); return rc; @@ -2440,7 +2418,6 @@ static int bcm63xx_udc_remove(struct platform_device *pdev) bcm63xx_udc_cleanup_debugfs(udc); usb_del_gadget_udc(&udc->gadget); - device_unregister(&udc->gadget.dev); BUG_ON(udc->driver); platform_set_drvdata(pdev, NULL); diff --git a/drivers/usb/gadget/cdc2.c b/drivers/usb/gadget/cdc2.c index a7d6f7026757..c6ee6f1558c3 100644 --- a/drivers/usb/gadget/cdc2.c +++ b/drivers/usb/gadget/cdc2.c @@ -103,18 +103,16 @@ static struct usb_gadget_strings *dev_strings[] = { }; static u8 hostaddr[ETH_ALEN]; - +static struct eth_dev *the_dev; /*-------------------------------------------------------------------------*/ static struct usb_function *f_acm; static struct usb_function_instance *fi_serial; -static unsigned char tty_line; /* * We _always_ have both CDC ECM and CDC ACM functions. */ static int __init cdc_do_config(struct usb_configuration *c) { - struct f_serial_opts *opts; int status; if (gadget_is_otg(c->cdev->gadget)) { @@ -122,7 +120,7 @@ static int __init cdc_do_config(struct usb_configuration *c) c->bmAttributes |= USB_CONFIG_ATT_WAKEUP; } - status = ecm_bind_config(c, hostaddr); + status = ecm_bind_config(c, hostaddr, the_dev); if (status < 0) return status; @@ -130,9 +128,6 @@ static int __init cdc_do_config(struct usb_configuration *c) if (IS_ERR(fi_serial)) return PTR_ERR(fi_serial); - opts = container_of(fi_serial, struct f_serial_opts, func_inst); - opts->port_num = tty_line; - f_acm = usb_get_function(fi_serial); if (IS_ERR(f_acm)) goto err_func_acm; @@ -169,14 +164,9 @@ static int __init cdc_bind(struct usb_composite_dev *cdev) } /* set up network link layer */ - status = gether_setup(cdev->gadget, hostaddr); - if (status < 0) - return status; - - /* set up serial link layer */ - status = gserial_alloc_line(&tty_line); - if (status < 0) - goto fail0; + the_dev = gether_setup(cdev->gadget, hostaddr); + if (IS_ERR(the_dev)) + return PTR_ERR(the_dev); /* Allocate string descriptor numbers ... note that string * contents can be overridden by the composite_dev glue. @@ -200,9 +190,7 @@ static int __init cdc_bind(struct usb_composite_dev *cdev) return 0; fail1: - gserial_free_line(tty_line); -fail0: - gether_cleanup(); + gether_cleanup(the_dev); return status; } @@ -210,8 +198,7 @@ static int __exit cdc_unbind(struct usb_composite_dev *cdev) { usb_put_function(f_acm); usb_put_function_instance(fi_serial); - gserial_free_line(tty_line); - gether_cleanup(); + gether_cleanup(the_dev); return 0; } diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index c0d62b278610..55f4df60f327 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -1637,6 +1637,7 @@ void composite_dev_cleanup(struct usb_composite_dev *cdev) kfree(cdev->req->buf); usb_ep_free_request(cdev->gadget->ep0, cdev->req); } + cdev->next_string_id = 0; device_remove_file(&cdev->gadget->dev, &dev_attr_suspended); } diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c new file mode 100644 index 000000000000..a34633a898a1 --- /dev/null +++ b/drivers/usb/gadget/configfs.c @@ -0,0 +1,1003 @@ +#include <linux/configfs.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/device.h> +#include <linux/usb/composite.h> +#include <linux/usb/gadget_configfs.h> + +int check_user_usb_string(const char *name, + struct usb_gadget_strings *stringtab_dev) +{ + unsigned primary_lang; + unsigned sub_lang; + u16 num; + int ret; + + ret = kstrtou16(name, 0, &num); + if (ret) + return ret; + + primary_lang = num & 0x3ff; + sub_lang = num >> 10; + + /* simple sanity check for valid langid */ + switch (primary_lang) { + case 0: + case 0x62 ... 0xfe: + case 0x100 ... 0x3ff: + return -EINVAL; + } + if (!sub_lang) + return -EINVAL; + + stringtab_dev->language = num; + return 0; +} + +#define MAX_NAME_LEN 40 +#define MAX_USB_STRING_LANGS 2 + +struct gadget_info { + struct config_group group; + struct config_group functions_group; + struct config_group configs_group; + struct config_group strings_group; + struct config_group *default_groups[4]; + + struct mutex lock; + struct usb_gadget_strings *gstrings[MAX_USB_STRING_LANGS + 1]; + struct list_head string_list; + struct list_head available_func; + + const char *udc_name; +#ifdef CONFIG_USB_OTG + struct usb_otg_descriptor otg; +#endif + struct usb_composite_driver composite; + struct usb_composite_dev cdev; +}; + +struct config_usb_cfg { + struct config_group group; + struct config_group strings_group; + struct config_group *default_groups[2]; + struct list_head string_list; + struct usb_configuration c; + struct list_head func_list; + struct usb_gadget_strings *gstrings[MAX_USB_STRING_LANGS + 1]; +}; + +struct gadget_strings { + struct usb_gadget_strings stringtab_dev; + struct usb_string strings[USB_GADGET_FIRST_AVAIL_IDX]; + char *manufacturer; + char *product; + char *serialnumber; + + struct config_group group; + struct list_head list; +}; + +struct gadget_config_name { + struct usb_gadget_strings stringtab_dev; + struct usb_string strings; + char *configuration; + + struct config_group group; + struct list_head list; +}; + +static int usb_string_copy(const char *s, char **s_copy) +{ + int ret; + char *str; + char *copy = *s_copy; + ret = strlen(s); + if (ret > 126) + return -EOVERFLOW; + + str = kstrdup(s, GFP_KERNEL); + if (!str) + return -ENOMEM; + if (str[ret - 1] == '\n') + str[ret - 1] = '\0'; + kfree(copy); + *s_copy = str; + return 0; +} + +CONFIGFS_ATTR_STRUCT(gadget_info); +CONFIGFS_ATTR_STRUCT(config_usb_cfg); + +#define GI_DEVICE_DESC_ITEM_ATTR(name) \ + static struct gadget_info_attribute gadget_cdev_desc_##name = \ + __CONFIGFS_ATTR(name, S_IRUGO | S_IWUSR, \ + gadget_dev_desc_##name##_show, \ + gadget_dev_desc_##name##_store) + +#define GI_DEVICE_DESC_SIMPLE_R_u8(__name) \ + static ssize_t gadget_dev_desc_##__name##_show(struct gadget_info *gi, \ + char *page) \ +{ \ + return sprintf(page, "0x%02x\n", gi->cdev.desc.__name); \ +} + +#define GI_DEVICE_DESC_SIMPLE_R_u16(__name) \ + static ssize_t gadget_dev_desc_##__name##_show(struct gadget_info *gi, \ + char *page) \ +{ \ + return sprintf(page, "0x%04x\n", le16_to_cpup(&gi->cdev.desc.__name)); \ +} + + +#define GI_DEVICE_DESC_SIMPLE_W_u8(_name) \ + static ssize_t gadget_dev_desc_##_name##_store(struct gadget_info *gi, \ + const char *page, size_t len) \ +{ \ + u8 val; \ + int ret; \ + ret = kstrtou8(page, 0, &val); \ + if (ret) \ + return ret; \ + gi->cdev.desc._name = val; \ + return len; \ +} + +#define GI_DEVICE_DESC_SIMPLE_W_u16(_name) \ + static ssize_t gadget_dev_desc_##_name##_store(struct gadget_info *gi, \ + const char *page, size_t len) \ +{ \ + u16 val; \ + int ret; \ + ret = kstrtou16(page, 0, &val); \ + if (ret) \ + return ret; \ + gi->cdev.desc._name = cpu_to_le16p(&val); \ + return len; \ +} + +#define GI_DEVICE_DESC_SIMPLE_RW(_name, _type) \ + GI_DEVICE_DESC_SIMPLE_R_##_type(_name) \ + GI_DEVICE_DESC_SIMPLE_W_##_type(_name) + +GI_DEVICE_DESC_SIMPLE_R_u16(bcdUSB); +GI_DEVICE_DESC_SIMPLE_RW(bDeviceClass, u8); +GI_DEVICE_DESC_SIMPLE_RW(bDeviceSubClass, u8); +GI_DEVICE_DESC_SIMPLE_RW(bDeviceProtocol, u8); +GI_DEVICE_DESC_SIMPLE_RW(bMaxPacketSize0, u8); +GI_DEVICE_DESC_SIMPLE_RW(idVendor, u16); +GI_DEVICE_DESC_SIMPLE_RW(idProduct, u16); +GI_DEVICE_DESC_SIMPLE_R_u16(bcdDevice); + +static ssize_t is_valid_bcd(u16 bcd_val) +{ + if ((bcd_val & 0xf) > 9) + return -EINVAL; + if (((bcd_val >> 4) & 0xf) > 9) + return -EINVAL; + if (((bcd_val >> 8) & 0xf) > 9) + return -EINVAL; + if (((bcd_val >> 12) & 0xf) > 9) + return -EINVAL; + return 0; +} + +static ssize_t gadget_dev_desc_bcdDevice_store(struct gadget_info *gi, + const char *page, size_t len) +{ + u16 bcdDevice; + int ret; + + ret = kstrtou16(page, 0, &bcdDevice); + if (ret) + return ret; + ret = is_valid_bcd(bcdDevice); + if (ret) + return ret; + + gi->cdev.desc.bcdDevice = cpu_to_le16(bcdDevice); + return len; +} + +static ssize_t gadget_dev_desc_bcdUSB_store(struct gadget_info *gi, + const char *page, size_t len) +{ + u16 bcdUSB; + int ret; + + ret = kstrtou16(page, 0, &bcdUSB); + if (ret) + return ret; + ret = is_valid_bcd(bcdUSB); + if (ret) + return ret; + + gi->cdev.desc.bcdUSB = cpu_to_le16(bcdUSB); + return len; +} + +static ssize_t gadget_dev_desc_UDC_show(struct gadget_info *gi, char *page) +{ + return sprintf(page, "%s\n", gi->udc_name ?: ""); +} + +static int unregister_gadget(struct gadget_info *gi) +{ + int ret; + + if (!gi->udc_name) + return -ENODEV; + + ret = usb_gadget_unregister_driver(&gi->composite.gadget_driver); + if (ret) + return ret; + kfree(gi->udc_name); + gi->udc_name = NULL; + return 0; +} + +static ssize_t gadget_dev_desc_UDC_store(struct gadget_info *gi, + const char *page, size_t len) +{ + char *name; + int ret; + + name = kstrdup(page, GFP_KERNEL); + if (!name) + return -ENOMEM; + if (name[len - 1] == '\n') + name[len - 1] = '\0'; + + mutex_lock(&gi->lock); + + if (!strlen(name)) { + ret = unregister_gadget(gi); + if (ret) + goto err; + } else { + if (gi->udc_name) { + ret = -EBUSY; + goto err; + } + ret = udc_attach_driver(name, &gi->composite.gadget_driver); + if (ret) + goto err; + gi->udc_name = name; + } + mutex_unlock(&gi->lock); + return len; +err: + kfree(name); + mutex_unlock(&gi->lock); + return ret; +} + +GI_DEVICE_DESC_ITEM_ATTR(bDeviceClass); +GI_DEVICE_DESC_ITEM_ATTR(bDeviceSubClass); +GI_DEVICE_DESC_ITEM_ATTR(bDeviceProtocol); +GI_DEVICE_DESC_ITEM_ATTR(bMaxPacketSize0); +GI_DEVICE_DESC_ITEM_ATTR(idVendor); +GI_DEVICE_DESC_ITEM_ATTR(idProduct); +GI_DEVICE_DESC_ITEM_ATTR(bcdDevice); +GI_DEVICE_DESC_ITEM_ATTR(bcdUSB); +GI_DEVICE_DESC_ITEM_ATTR(UDC); + +static struct configfs_attribute *gadget_root_attrs[] = { + &gadget_cdev_desc_bDeviceClass.attr, + &gadget_cdev_desc_bDeviceSubClass.attr, + &gadget_cdev_desc_bDeviceProtocol.attr, + &gadget_cdev_desc_bMaxPacketSize0.attr, + &gadget_cdev_desc_idVendor.attr, + &gadget_cdev_desc_idProduct.attr, + &gadget_cdev_desc_bcdDevice.attr, + &gadget_cdev_desc_bcdUSB.attr, + &gadget_cdev_desc_UDC.attr, + NULL, +}; + +static inline struct gadget_info *to_gadget_info(struct config_item *item) +{ + return container_of(to_config_group(item), struct gadget_info, group); +} + +static inline struct gadget_strings *to_gadget_strings(struct config_item *item) +{ + return container_of(to_config_group(item), struct gadget_strings, + group); +} + +static inline struct gadget_config_name *to_gadget_config_name( + struct config_item *item) +{ + return container_of(to_config_group(item), struct gadget_config_name, + group); +} + +static inline struct config_usb_cfg *to_config_usb_cfg(struct config_item *item) +{ + return container_of(to_config_group(item), struct config_usb_cfg, + group); +} + +static inline struct usb_function_instance *to_usb_function_instance( + struct config_item *item) +{ + return container_of(to_config_group(item), + struct usb_function_instance, group); +} + +static void gadget_info_attr_release(struct config_item *item) +{ + struct gadget_info *gi = to_gadget_info(item); + + WARN_ON(!list_empty(&gi->cdev.configs)); + WARN_ON(!list_empty(&gi->string_list)); + WARN_ON(!list_empty(&gi->available_func)); + kfree(gi->composite.gadget_driver.function); + kfree(gi); +} + +CONFIGFS_ATTR_OPS(gadget_info); + +static struct configfs_item_operations gadget_root_item_ops = { + .release = gadget_info_attr_release, + .show_attribute = gadget_info_attr_show, + .store_attribute = gadget_info_attr_store, +}; + +static void gadget_config_attr_release(struct config_item *item) +{ + struct config_usb_cfg *cfg = to_config_usb_cfg(item); + + WARN_ON(!list_empty(&cfg->c.functions)); + list_del(&cfg->c.list); + kfree(cfg->c.label); + kfree(cfg); +} + +static int config_usb_cfg_link( + struct config_item *usb_cfg_ci, + struct config_item *usb_func_ci) +{ + struct config_usb_cfg *cfg = to_config_usb_cfg(usb_cfg_ci); + struct usb_composite_dev *cdev = cfg->c.cdev; + struct gadget_info *gi = container_of(cdev, struct gadget_info, cdev); + + struct config_group *group = to_config_group(usb_func_ci); + struct usb_function_instance *fi = container_of(group, + struct usb_function_instance, group); + struct usb_function_instance *a_fi; + struct usb_function *f; + int ret; + + mutex_lock(&gi->lock); + /* + * Make sure this function is from within our _this_ gadget and not + * from another gadget or a random directory. + * Also a function instance can only be linked once. + */ + list_for_each_entry(a_fi, &gi->available_func, cfs_list) { + if (a_fi == fi) + break; + } + if (a_fi != fi) { + ret = -EINVAL; + goto out; + } + + list_for_each_entry(f, &cfg->func_list, list) { + if (f->fi == fi) { + ret = -EEXIST; + goto out; + } + } + + f = usb_get_function(fi); + if (IS_ERR(f)) { + ret = PTR_ERR(f); + goto out; + } + + /* stash the function until we bind it to the gadget */ + list_add_tail(&f->list, &cfg->func_list); + ret = 0; +out: + mutex_unlock(&gi->lock); + return ret; +} + +static int config_usb_cfg_unlink( + struct config_item *usb_cfg_ci, + struct config_item *usb_func_ci) +{ + struct config_usb_cfg *cfg = to_config_usb_cfg(usb_cfg_ci); + struct usb_composite_dev *cdev = cfg->c.cdev; + struct gadget_info *gi = container_of(cdev, struct gadget_info, cdev); + + struct config_group *group = to_config_group(usb_func_ci); + struct usb_function_instance *fi = container_of(group, + struct usb_function_instance, group); + struct usb_function *f; + + /* + * ideally I would like to forbid to unlink functions while a gadget is + * bound to an UDC. Since this isn't possible at the moment, we simply + * force an unbind, the function is available here and then we can + * remove the function. + */ + mutex_lock(&gi->lock); + if (gi->udc_name) + unregister_gadget(gi); + WARN_ON(gi->udc_name); + + list_for_each_entry(f, &cfg->func_list, list) { + if (f->fi == fi) { + list_del(&f->list); + usb_put_function(f); + mutex_unlock(&gi->lock); + return 0; + } + } + mutex_unlock(&gi->lock); + __WARN_printf("Unable to locate function to unbind\n"); + return 0; +} + +CONFIGFS_ATTR_OPS(config_usb_cfg); + +static struct configfs_item_operations gadget_config_item_ops = { + .release = gadget_config_attr_release, + .show_attribute = config_usb_cfg_attr_show, + .store_attribute = config_usb_cfg_attr_store, + .allow_link = config_usb_cfg_link, + .drop_link = config_usb_cfg_unlink, +}; + + +static ssize_t gadget_config_desc_MaxPower_show(struct config_usb_cfg *cfg, + char *page) +{ + return sprintf(page, "%u\n", cfg->c.MaxPower); +} + +static ssize_t gadget_config_desc_MaxPower_store(struct config_usb_cfg *cfg, + const char *page, size_t len) +{ + u16 val; + int ret; + ret = kstrtou16(page, 0, &val); + if (ret) + return ret; + if (DIV_ROUND_UP(val, 8) > 0xff) + return -ERANGE; + cfg->c.MaxPower = val; + return len; +} + +static ssize_t gadget_config_desc_bmAttributes_show(struct config_usb_cfg *cfg, + char *page) +{ + return sprintf(page, "0x%02x\n", cfg->c.bmAttributes); +} + +static ssize_t gadget_config_desc_bmAttributes_store(struct config_usb_cfg *cfg, + const char *page, size_t len) +{ + u8 val; + int ret; + ret = kstrtou8(page, 0, &val); + if (ret) + return ret; + if (!(val & USB_CONFIG_ATT_ONE)) + return -EINVAL; + if (val & ~(USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER | + USB_CONFIG_ATT_WAKEUP)) + return -EINVAL; + cfg->c.bmAttributes = val; + return len; +} + +#define CFG_CONFIG_DESC_ITEM_ATTR(name) \ + static struct config_usb_cfg_attribute gadget_usb_cfg_##name = \ + __CONFIGFS_ATTR(name, S_IRUGO | S_IWUSR, \ + gadget_config_desc_##name##_show, \ + gadget_config_desc_##name##_store) + +CFG_CONFIG_DESC_ITEM_ATTR(MaxPower); +CFG_CONFIG_DESC_ITEM_ATTR(bmAttributes); + +static struct configfs_attribute *gadget_config_attrs[] = { + &gadget_usb_cfg_MaxPower.attr, + &gadget_usb_cfg_bmAttributes.attr, + NULL, +}; + +static struct config_item_type gadget_config_type = { + .ct_item_ops = &gadget_config_item_ops, + .ct_attrs = gadget_config_attrs, + .ct_owner = THIS_MODULE, +}; + +static struct config_item_type gadget_root_type = { + .ct_item_ops = &gadget_root_item_ops, + .ct_attrs = gadget_root_attrs, + .ct_owner = THIS_MODULE, +}; + +static void composite_init_dev(struct usb_composite_dev *cdev) +{ + spin_lock_init(&cdev->lock); + INIT_LIST_HEAD(&cdev->configs); + INIT_LIST_HEAD(&cdev->gstrings); +} + +static struct config_group *function_make( + struct config_group *group, + const char *name) +{ + struct gadget_info *gi; + struct usb_function_instance *fi; + char buf[MAX_NAME_LEN]; + char *func_name; + char *instance_name; + int ret; + + ret = snprintf(buf, MAX_NAME_LEN, "%s", name); + if (ret >= MAX_NAME_LEN) + return ERR_PTR(-ENAMETOOLONG); + + func_name = buf; + instance_name = strchr(func_name, '.'); + if (!instance_name) { + pr_err("Unable to locate . in FUNC.INSTANCE\n"); + return ERR_PTR(-EINVAL); + } + *instance_name = '\0'; + instance_name++; + + fi = usb_get_function_instance(func_name); + if (IS_ERR(fi)) + return ERR_PTR(PTR_ERR(fi)); + + ret = config_item_set_name(&fi->group.cg_item, name); + if (ret) { + usb_put_function_instance(fi); + return ERR_PTR(ret); + } + + gi = container_of(group, struct gadget_info, functions_group); + + mutex_lock(&gi->lock); + list_add_tail(&fi->cfs_list, &gi->available_func); + mutex_unlock(&gi->lock); + return &fi->group; +} + +static void function_drop( + struct config_group *group, + struct config_item *item) +{ + struct usb_function_instance *fi = to_usb_function_instance(item); + struct gadget_info *gi; + + gi = container_of(group, struct gadget_info, functions_group); + + mutex_lock(&gi->lock); + list_del(&fi->cfs_list); + mutex_unlock(&gi->lock); + config_item_put(item); +} + +static struct configfs_group_operations functions_ops = { + .make_group = &function_make, + .drop_item = &function_drop, +}; + +static struct config_item_type functions_type = { + .ct_group_ops = &functions_ops, + .ct_owner = THIS_MODULE, +}; + +CONFIGFS_ATTR_STRUCT(gadget_config_name); +GS_STRINGS_RW(gadget_config_name, configuration); + +static struct configfs_attribute *gadget_config_name_langid_attrs[] = { + &gadget_config_name_configuration.attr, + NULL, +}; + +static void gadget_config_name_attr_release(struct config_item *item) +{ + struct gadget_config_name *cn = to_gadget_config_name(item); + + kfree(cn->configuration); + + list_del(&cn->list); + kfree(cn); +} + +USB_CONFIG_STRING_RW_OPS(gadget_config_name); +USB_CONFIG_STRINGS_LANG(gadget_config_name, config_usb_cfg); + +static struct config_group *config_desc_make( + struct config_group *group, + const char *name) +{ + struct gadget_info *gi; + struct config_usb_cfg *cfg; + char buf[MAX_NAME_LEN]; + char *num_str; + u8 num; + int ret; + + gi = container_of(group, struct gadget_info, configs_group); + ret = snprintf(buf, MAX_NAME_LEN, "%s", name); + if (ret >= MAX_NAME_LEN) + return ERR_PTR(-ENAMETOOLONG); + + num_str = strchr(buf, '.'); + if (!num_str) { + pr_err("Unable to locate . in name.bConfigurationValue\n"); + return ERR_PTR(-EINVAL); + } + + *num_str = '\0'; + num_str++; + + if (!strlen(buf)) + return ERR_PTR(-EINVAL); + + ret = kstrtou8(num_str, 0, &num); + if (ret) + return ERR_PTR(ret); + + cfg = kzalloc(sizeof(*cfg), GFP_KERNEL); + if (!cfg) + return ERR_PTR(-ENOMEM); + cfg->c.label = kstrdup(buf, GFP_KERNEL); + if (!cfg->c.label) { + ret = -ENOMEM; + goto err; + } + cfg->c.bConfigurationValue = num; + cfg->c.MaxPower = CONFIG_USB_GADGET_VBUS_DRAW; + cfg->c.bmAttributes = USB_CONFIG_ATT_ONE; + INIT_LIST_HEAD(&cfg->string_list); + INIT_LIST_HEAD(&cfg->func_list); + + cfg->group.default_groups = cfg->default_groups; + cfg->default_groups[0] = &cfg->strings_group; + + config_group_init_type_name(&cfg->group, name, + &gadget_config_type); + config_group_init_type_name(&cfg->strings_group, "strings", + &gadget_config_name_strings_type); + + ret = usb_add_config_only(&gi->cdev, &cfg->c); + if (ret) + goto err; + + return &cfg->group; +err: + kfree(cfg->c.label); + kfree(cfg); + return ERR_PTR(ret); +} + +static void config_desc_drop( + struct config_group *group, + struct config_item *item) +{ + config_item_put(item); +} + +static struct configfs_group_operations config_desc_ops = { + .make_group = &config_desc_make, + .drop_item = &config_desc_drop, +}; + +static struct config_item_type config_desc_type = { + .ct_group_ops = &config_desc_ops, + .ct_owner = THIS_MODULE, +}; + +CONFIGFS_ATTR_STRUCT(gadget_strings); +GS_STRINGS_RW(gadget_strings, manufacturer); +GS_STRINGS_RW(gadget_strings, product); +GS_STRINGS_RW(gadget_strings, serialnumber); + +static struct configfs_attribute *gadget_strings_langid_attrs[] = { + &gadget_strings_manufacturer.attr, + &gadget_strings_product.attr, + &gadget_strings_serialnumber.attr, + NULL, +}; + +static void gadget_strings_attr_release(struct config_item *item) +{ + struct gadget_strings *gs = to_gadget_strings(item); + + kfree(gs->manufacturer); + kfree(gs->product); + kfree(gs->serialnumber); + + list_del(&gs->list); + kfree(gs); +} + +USB_CONFIG_STRING_RW_OPS(gadget_strings); +USB_CONFIG_STRINGS_LANG(gadget_strings, gadget_info); + +static int configfs_do_nothing(struct usb_composite_dev *cdev) +{ + __WARN(); + return -EINVAL; +} + +int composite_dev_prepare(struct usb_composite_driver *composite, + struct usb_composite_dev *dev); + +static void purge_configs_funcs(struct gadget_info *gi) +{ + struct usb_configuration *c; + + list_for_each_entry(c, &gi->cdev.configs, list) { + struct usb_function *f, *tmp; + struct config_usb_cfg *cfg; + + cfg = container_of(c, struct config_usb_cfg, c); + + list_for_each_entry_safe(f, tmp, &c->functions, list) { + + list_move_tail(&f->list, &cfg->func_list); + if (f->unbind) { + dev_err(&gi->cdev.gadget->dev, "unbind function" + " '%s'/%p\n", f->name, f); + f->unbind(c, f); + } + } + c->next_interface_id = 0; + c->superspeed = 0; + c->highspeed = 0; + c->fullspeed = 0; + } +} + +static int configfs_composite_bind(struct usb_gadget *gadget, + struct usb_gadget_driver *gdriver) +{ + struct usb_composite_driver *composite = to_cdriver(gdriver); + struct gadget_info *gi = container_of(composite, + struct gadget_info, composite); + struct usb_composite_dev *cdev = &gi->cdev; + struct usb_configuration *c; + struct usb_string *s; + unsigned i; + int ret; + + /* the gi->lock is hold by the caller */ + cdev->gadget = gadget; + set_gadget_data(gadget, cdev); + ret = composite_dev_prepare(composite, cdev); + if (ret) + return ret; + /* and now the gadget bind */ + ret = -EINVAL; + + if (list_empty(&gi->cdev.configs)) { + pr_err("Need atleast one configuration in %s.\n", + gi->composite.name); + goto err_comp_cleanup; + } + + + list_for_each_entry(c, &gi->cdev.configs, list) { + struct config_usb_cfg *cfg; + + cfg = container_of(c, struct config_usb_cfg, c); + if (list_empty(&cfg->func_list)) { + pr_err("Config %s/%d of %s needs atleast one function.\n", + c->label, c->bConfigurationValue, + gi->composite.name); + goto err_comp_cleanup; + } + } + + /* init all strings */ + if (!list_empty(&gi->string_list)) { + struct gadget_strings *gs; + + i = 0; + list_for_each_entry(gs, &gi->string_list, list) { + + gi->gstrings[i] = &gs->stringtab_dev; + gs->stringtab_dev.strings = gs->strings; + gs->strings[USB_GADGET_MANUFACTURER_IDX].s = + gs->manufacturer; + gs->strings[USB_GADGET_PRODUCT_IDX].s = gs->product; + gs->strings[USB_GADGET_SERIAL_IDX].s = gs->serialnumber; + i++; + } + gi->gstrings[i] = NULL; + s = usb_gstrings_attach(&gi->cdev, gi->gstrings, + USB_GADGET_FIRST_AVAIL_IDX); + if (IS_ERR(s)) + goto err_comp_cleanup; + + gi->cdev.desc.iManufacturer = s[USB_GADGET_MANUFACTURER_IDX].id; + gi->cdev.desc.iProduct = s[USB_GADGET_PRODUCT_IDX].id; + gi->cdev.desc.iSerialNumber = s[USB_GADGET_SERIAL_IDX].id; + } + + /* Go through all configs, attach all functions */ + list_for_each_entry(c, &gi->cdev.configs, list) { + struct config_usb_cfg *cfg; + struct usb_function *f; + struct usb_function *tmp; + struct gadget_config_name *cn; + + cfg = container_of(c, struct config_usb_cfg, c); + if (!list_empty(&cfg->string_list)) { + i = 0; + list_for_each_entry(cn, &cfg->string_list, list) { + cfg->gstrings[i] = &cn->stringtab_dev; + cn->stringtab_dev.strings = &cn->strings; + cn->strings.s = cn->configuration; + i++; + } + cfg->gstrings[i] = NULL; + s = usb_gstrings_attach(&gi->cdev, cfg->gstrings, 1); + if (IS_ERR(s)) + goto err_comp_cleanup; + c->iConfiguration = s[0].id; + } + + list_for_each_entry_safe(f, tmp, &cfg->func_list, list) { + list_del(&f->list); + ret = usb_add_function(c, f); + if (ret) + goto err_purge_funcs; + } + usb_ep_autoconfig_reset(cdev->gadget); + } + usb_ep_autoconfig_reset(cdev->gadget); + return 0; + +err_purge_funcs: + purge_configs_funcs(gi); +err_comp_cleanup: + composite_dev_cleanup(cdev); + return ret; +} + +static void configfs_composite_unbind(struct usb_gadget *gadget) +{ + struct usb_composite_dev *cdev; + struct gadget_info *gi; + + /* the gi->lock is hold by the caller */ + + cdev = get_gadget_data(gadget); + gi = container_of(cdev, struct gadget_info, cdev); + + purge_configs_funcs(gi); + composite_dev_cleanup(cdev); + usb_ep_autoconfig_reset(cdev->gadget); + cdev->gadget = NULL; + set_gadget_data(gadget, NULL); +} + +static const struct usb_gadget_driver configfs_driver_template = { + .bind = configfs_composite_bind, + .unbind = configfs_composite_unbind, + + .setup = composite_setup, + .disconnect = composite_disconnect, + + .max_speed = USB_SPEED_SUPER, + .driver = { + .owner = THIS_MODULE, + .name = "configfs-gadget", + }, +}; + +static struct config_group *gadgets_make( + struct config_group *group, + const char *name) +{ + struct gadget_info *gi; + + gi = kzalloc(sizeof(*gi), GFP_KERNEL); + if (!gi) + return ERR_PTR(-ENOMEM); + + gi->group.default_groups = gi->default_groups; + gi->group.default_groups[0] = &gi->functions_group; + gi->group.default_groups[1] = &gi->configs_group; + gi->group.default_groups[2] = &gi->strings_group; + + config_group_init_type_name(&gi->functions_group, "functions", + &functions_type); + config_group_init_type_name(&gi->configs_group, "configs", + &config_desc_type); + config_group_init_type_name(&gi->strings_group, "strings", + &gadget_strings_strings_type); + + gi->composite.bind = configfs_do_nothing; + gi->composite.unbind = configfs_do_nothing; + gi->composite.suspend = NULL; + gi->composite.resume = NULL; + gi->composite.max_speed = USB_SPEED_SUPER; + + mutex_init(&gi->lock); + INIT_LIST_HEAD(&gi->string_list); + INIT_LIST_HEAD(&gi->available_func); + + composite_init_dev(&gi->cdev); + gi->cdev.desc.bLength = USB_DT_DEVICE_SIZE; + gi->cdev.desc.bDescriptorType = USB_DT_DEVICE; + gi->cdev.desc.bcdDevice = cpu_to_le16(get_default_bcdDevice()); + + gi->composite.gadget_driver = configfs_driver_template; + + gi->composite.gadget_driver.function = kstrdup(name, GFP_KERNEL); + gi->composite.name = gi->composite.gadget_driver.function; + + if (!gi->composite.gadget_driver.function) + goto err; + +#ifdef CONFIG_USB_OTG + gi->otg.bLength = sizeof(struct usb_otg_descriptor); + gi->otg.bDescriptorType = USB_DT_OTG; + gi->otg.bmAttributes = USB_OTG_SRP | USB_OTG_HNP; +#endif + + config_group_init_type_name(&gi->group, name, + &gadget_root_type); + return &gi->group; +err: + kfree(gi); + return ERR_PTR(-ENOMEM); +} + +static void gadgets_drop(struct config_group *group, struct config_item *item) +{ + config_item_put(item); +} + +static struct configfs_group_operations gadgets_ops = { + .make_group = &gadgets_make, + .drop_item = &gadgets_drop, +}; + +static struct config_item_type gadgets_type = { + .ct_group_ops = &gadgets_ops, + .ct_owner = THIS_MODULE, +}; + +static struct configfs_subsystem gadget_subsys = { + .su_group = { + .cg_item = { + .ci_namebuf = "usb_gadget", + .ci_type = &gadgets_type, + }, + }, + .su_mutex = __MUTEX_INITIALIZER(gadget_subsys.su_mutex), +}; + +static int __init gadget_cfs_init(void) +{ + int ret; + + config_group_init(&gadget_subsys.su_group); + + ret = configfs_register_subsystem(&gadget_subsys); + return ret; +} +module_init(gadget_cfs_init); + +static void __exit gadget_cfs_exit(void) +{ + configfs_unregister_subsystem(&gadget_subsys); +} +module_exit(gadget_cfs_exit); diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index 8cf0c0f6fa1f..a792e322f4f1 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -912,7 +912,6 @@ static int dummy_udc_start(struct usb_gadget *g, dum->devstatus = 0; dum->driver = driver; - dum->gadget.dev.driver = &driver->driver; dev_dbg(udc_dev(dum), "binding gadget driver '%s'\n", driver->driver.name); return 0; @@ -927,7 +926,6 @@ static int dummy_udc_stop(struct usb_gadget *g, dev_dbg(udc_dev(dum), "unregister gadget driver '%s'\n", driver->driver.name); - dum->gadget.dev.driver = NULL; dum->driver = NULL; return 0; @@ -937,11 +935,6 @@ static int dummy_udc_stop(struct usb_gadget *g, /* The gadget structure is stored inside the hcd structure and will be * released along with it. */ -static void dummy_gadget_release(struct device *dev) -{ - return; -} - static void init_dummy_udc_hw(struct dummy *dum) { int i; @@ -984,15 +977,7 @@ static int dummy_udc_probe(struct platform_device *pdev) dum->gadget.ops = &dummy_ops; dum->gadget.max_speed = USB_SPEED_SUPER; - dev_set_name(&dum->gadget.dev, "gadget"); dum->gadget.dev.parent = &pdev->dev; - dum->gadget.dev.release = dummy_gadget_release; - rc = device_register(&dum->gadget.dev); - if (rc < 0) { - put_device(&dum->gadget.dev); - return rc; - } - init_dummy_udc_hw(dum); rc = usb_add_gadget_udc(&pdev->dev, &dum->gadget); @@ -1008,7 +993,6 @@ static int dummy_udc_probe(struct platform_device *pdev) err_dev: usb_del_gadget_udc(&dum->gadget); err_udc: - device_unregister(&dum->gadget.dev); return rc; } @@ -1019,7 +1003,6 @@ static int dummy_udc_remove(struct platform_device *pdev) usb_del_gadget_udc(&dum->gadget); platform_set_drvdata(pdev, NULL); device_remove_file(&dum->gadget.dev, &dev_attr_function); - device_unregister(&dum->gadget.dev); return 0; } @@ -1923,7 +1906,7 @@ done: } /* usb 3.0 root hub device descriptor */ -struct { +static struct { struct usb_bos_descriptor bos; struct usb_ss_cap_descriptor ss_cap; } __packed usb3_bos_desc = { diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c index 18c3f423706e..56c8ecae9bc3 100644 --- a/drivers/usb/gadget/ether.c +++ b/drivers/usb/gadget/ether.c @@ -207,7 +207,7 @@ static struct usb_gadget_strings *dev_strings[] = { }; static u8 hostaddr[ETH_ALEN]; - +static struct eth_dev *the_dev; /*-------------------------------------------------------------------------*/ /* @@ -224,7 +224,7 @@ static int __init rndis_do_config(struct usb_configuration *c) c->bmAttributes |= USB_CONFIG_ATT_WAKEUP; } - return rndis_bind_config(c, hostaddr); + return rndis_bind_config(c, hostaddr, the_dev); } static struct usb_configuration rndis_config_driver = { @@ -257,11 +257,11 @@ static int __init eth_do_config(struct usb_configuration *c) } if (use_eem) - return eem_bind_config(c); + return eem_bind_config(c, the_dev); else if (can_support_ecm(c->cdev->gadget)) - return ecm_bind_config(c, hostaddr); + return ecm_bind_config(c, hostaddr, the_dev); else - return geth_bind_config(c, hostaddr); + return geth_bind_config(c, hostaddr, the_dev); } static struct usb_configuration eth_config_driver = { @@ -279,9 +279,9 @@ static int __init eth_bind(struct usb_composite_dev *cdev) int status; /* set up network link layer */ - status = gether_setup(cdev->gadget, hostaddr); - if (status < 0) - return status; + the_dev = gether_setup(cdev->gadget, hostaddr); + if (IS_ERR(the_dev)) + return PTR_ERR(the_dev); /* set up main config label and device descriptor */ if (use_eem) { @@ -338,13 +338,13 @@ static int __init eth_bind(struct usb_composite_dev *cdev) return 0; fail: - gether_cleanup(); + gether_cleanup(the_dev); return status; } static int __exit eth_unbind(struct usb_composite_dev *cdev) { - gether_cleanup(); + gether_cleanup(the_dev); return 0; } diff --git a/drivers/usb/gadget/f_acm.c b/drivers/usb/gadget/f_acm.c index 1ae180baa597..4b7e33e5d9c6 100644 --- a/drivers/usb/gadget/f_acm.c +++ b/drivers/usb/gadget/f_acm.c @@ -715,13 +715,31 @@ fail: return status; } -static struct f_acm *acm_alloc_basic_func(void) +static void acm_unbind(struct usb_configuration *c, struct usb_function *f) +{ + struct f_acm *acm = func_to_acm(f); + + acm_string_defs[0].id = 0; + usb_free_all_descriptors(f); + if (acm->notify_req) + gs_free_req(acm->notify, acm->notify_req); +} + +static void acm_free_func(struct usb_function *f) +{ + struct f_acm *acm = func_to_acm(f); + + kfree(acm); +} + +static struct usb_function *acm_alloc_func(struct usb_function_instance *fi) { - struct f_acm *acm; + struct f_serial_opts *opts; + struct f_acm *acm; acm = kzalloc(sizeof(*acm), GFP_KERNEL); if (!acm) - return NULL; + return ERR_PTR(-ENOMEM); spin_lock_init(&acm->lock); @@ -730,109 +748,100 @@ static struct f_acm *acm_alloc_basic_func(void) acm->port.send_break = acm_send_break; acm->port.func.name = "acm"; + acm->port.func.strings = acm_strings; /* descriptors are per-instance copies */ acm->port.func.bind = acm_bind; acm->port.func.set_alt = acm_set_alt; acm->port.func.setup = acm_setup; acm->port.func.disable = acm_disable; - return acm; + opts = container_of(fi, struct f_serial_opts, func_inst); + acm->port_num = opts->port_num; + acm->port.func.unbind = acm_unbind; + acm->port.func.free_func = acm_free_func; + + return &acm->port.func; } -#ifdef USB_FACM_INCLUDED -static void -acm_old_unbind(struct usb_configuration *c, struct usb_function *f) +static inline struct f_serial_opts *to_f_serial_opts(struct config_item *item) { - struct f_acm *acm = func_to_acm(f); - - usb_free_all_descriptors(f); - if (acm->notify_req) - gs_free_req(acm->notify, acm->notify_req); - kfree(acm); + return container_of(to_config_group(item), struct f_serial_opts, + func_inst.group); } -/** - * acm_bind_config - add a CDC ACM function to a configuration - * @c: the configuration to support the CDC ACM instance - * @port_num: /dev/ttyGS* port this interface will use - * Context: single threaded during gadget setup - * - * Returns zero on success, else negative errno. - * - */ -int acm_bind_config(struct usb_configuration *c, u8 port_num) +CONFIGFS_ATTR_STRUCT(f_serial_opts); +static ssize_t f_acm_attr_show(struct config_item *item, + struct configfs_attribute *attr, + char *page) { - struct f_acm *acm; - int status; - - /* allocate and initialize one new instance */ - acm = acm_alloc_basic_func(); - if (!acm) - return -ENOMEM; - - acm->port_num = port_num; - acm->port.func.unbind = acm_old_unbind; - - status = usb_add_function(c, &acm->port.func); - if (status) - kfree(acm); - return status; + struct f_serial_opts *opts = to_f_serial_opts(item); + struct f_serial_opts_attribute *f_serial_opts_attr = + container_of(attr, struct f_serial_opts_attribute, attr); + ssize_t ret = 0; + + if (f_serial_opts_attr->show) + ret = f_serial_opts_attr->show(opts, page); + return ret; } -#else - -static void acm_unbind(struct usb_configuration *c, struct usb_function *f) +static void acm_attr_release(struct config_item *item) { - struct f_acm *acm = func_to_acm(f); + struct f_serial_opts *opts = to_f_serial_opts(item); - acm_string_defs[0].id = 0; - usb_free_all_descriptors(f); - if (acm->notify_req) - gs_free_req(acm->notify, acm->notify_req); + usb_put_function_instance(&opts->func_inst); } -static void acm_free_func(struct usb_function *f) -{ - struct f_acm *acm = func_to_acm(f); +static struct configfs_item_operations acm_item_ops = { + .release = acm_attr_release, + .show_attribute = f_acm_attr_show, +}; - kfree(acm); +static ssize_t f_acm_port_num_show(struct f_serial_opts *opts, char *page) +{ + return sprintf(page, "%u\n", opts->port_num); } -static struct usb_function *acm_alloc_func(struct usb_function_instance *fi) -{ - struct f_serial_opts *opts; - struct f_acm *acm; +static struct f_serial_opts_attribute f_acm_port_num = + __CONFIGFS_ATTR_RO(port_num, f_acm_port_num_show); - acm = acm_alloc_basic_func(); - if (!acm) - return ERR_PTR(-ENOMEM); - opts = container_of(fi, struct f_serial_opts, func_inst); - acm->port_num = opts->port_num; - acm->port.func.unbind = acm_unbind; - acm->port.func.free_func = acm_free_func; +static struct configfs_attribute *acm_attrs[] = { + &f_acm_port_num.attr, + NULL, +}; - return &acm->port.func; -} +static struct config_item_type acm_func_type = { + .ct_item_ops = &acm_item_ops, + .ct_attrs = acm_attrs, + .ct_owner = THIS_MODULE, +}; static void acm_free_instance(struct usb_function_instance *fi) { struct f_serial_opts *opts; opts = container_of(fi, struct f_serial_opts, func_inst); + gserial_free_line(opts->port_num); kfree(opts); } static struct usb_function_instance *acm_alloc_instance(void) { struct f_serial_opts *opts; + int ret; opts = kzalloc(sizeof(*opts), GFP_KERNEL); if (!opts) return ERR_PTR(-ENOMEM); opts->func_inst.free_func_inst = acm_free_instance; + ret = gserial_alloc_line(&opts->port_num); + if (ret) { + kfree(opts); + return ERR_PTR(ret); + } + config_group_init_type_name(&opts->func_inst.group, "", + &acm_func_type); return &opts->func_inst; } DECLARE_USB_FUNCTION_INIT(acm, acm_alloc_instance, acm_alloc_func); MODULE_LICENSE("GPL"); -#endif diff --git a/drivers/usb/gadget/f_ecm.c b/drivers/usb/gadget/f_ecm.c index 83420a310fb7..d893d6929079 100644 --- a/drivers/usb/gadget/f_ecm.c +++ b/drivers/usb/gadget/f_ecm.c @@ -824,7 +824,8 @@ ecm_unbind(struct usb_configuration *c, struct usb_function *f) * for calling @gether_cleanup() before module unload. */ int -ecm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]) +ecm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], + struct eth_dev *dev) { struct f_ecm *ecm; int status; @@ -852,6 +853,7 @@ ecm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]) snprintf(ecm->ethaddr, sizeof ecm->ethaddr, "%pm", ethaddr); ecm_string_defs[1].s = ecm->ethaddr; + ecm->port.ioport = dev; ecm->port.cdc_filter = DEFAULT_FILTER; ecm->port.func.name = "cdc_ethernet"; diff --git a/drivers/usb/gadget/f_eem.c b/drivers/usb/gadget/f_eem.c index cf0ebee85563..f4e0bbef602a 100644 --- a/drivers/usb/gadget/f_eem.c +++ b/drivers/usb/gadget/f_eem.c @@ -528,7 +528,7 @@ error: * Caller must have called @gether_setup(). Caller is also responsible * for calling @gether_cleanup() before module unload. */ -int __init eem_bind_config(struct usb_configuration *c) +int __init eem_bind_config(struct usb_configuration *c, struct eth_dev *dev) { struct f_eem *eem; int status; @@ -549,6 +549,7 @@ int __init eem_bind_config(struct usb_configuration *c) if (!eem) return -ENOMEM; + eem->port.ioport = dev; eem->port.cdc_filter = DEFAULT_FILTER; eem->port.func.name = "cdc_eem"; diff --git a/drivers/usb/gadget/f_ncm.c b/drivers/usb/gadget/f_ncm.c index 5e7557e23ecc..ee19bc8d0040 100644 --- a/drivers/usb/gadget/f_ncm.c +++ b/drivers/usb/gadget/f_ncm.c @@ -1287,7 +1287,8 @@ ncm_unbind(struct usb_configuration *c, struct usb_function *f) * Caller must have called @gether_setup(). Caller is also responsible * for calling @gether_cleanup() before module unload. */ -int __init ncm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]) +int __init ncm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], + struct eth_dev *dev) { struct f_ncm *ncm; int status; @@ -1321,6 +1322,7 @@ int __init ncm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]) spin_lock_init(&ncm->lock); ncm_reset_values(ncm); + ncm->port.ioport = dev; ncm->port.is_fixed = true; ncm->port.func.name = "cdc_network"; diff --git a/drivers/usb/gadget/f_obex.c b/drivers/usb/gadget/f_obex.c index 36a004563b82..29a348a2a294 100644 --- a/drivers/usb/gadget/f_obex.c +++ b/drivers/usb/gadget/f_obex.c @@ -72,7 +72,7 @@ static struct usb_gadget_strings *obex_strings[] = { /*-------------------------------------------------------------------------*/ -static struct usb_interface_descriptor obex_control_intf __initdata = { +static struct usb_interface_descriptor obex_control_intf = { .bLength = sizeof(obex_control_intf), .bDescriptorType = USB_DT_INTERFACE, .bInterfaceNumber = 0, @@ -83,7 +83,7 @@ static struct usb_interface_descriptor obex_control_intf __initdata = { .bInterfaceSubClass = USB_CDC_SUBCLASS_OBEX, }; -static struct usb_interface_descriptor obex_data_nop_intf __initdata = { +static struct usb_interface_descriptor obex_data_nop_intf = { .bLength = sizeof(obex_data_nop_intf), .bDescriptorType = USB_DT_INTERFACE, .bInterfaceNumber = 1, @@ -93,7 +93,7 @@ static struct usb_interface_descriptor obex_data_nop_intf __initdata = { .bInterfaceClass = USB_CLASS_CDC_DATA, }; -static struct usb_interface_descriptor obex_data_intf __initdata = { +static struct usb_interface_descriptor obex_data_intf = { .bLength = sizeof(obex_data_intf), .bDescriptorType = USB_DT_INTERFACE, .bInterfaceNumber = 2, @@ -103,14 +103,14 @@ static struct usb_interface_descriptor obex_data_intf __initdata = { .bInterfaceClass = USB_CLASS_CDC_DATA, }; -static struct usb_cdc_header_desc obex_cdc_header_desc __initdata = { +static struct usb_cdc_header_desc obex_cdc_header_desc = { .bLength = sizeof(obex_cdc_header_desc), .bDescriptorType = USB_DT_CS_INTERFACE, .bDescriptorSubType = USB_CDC_HEADER_TYPE, .bcdCDC = cpu_to_le16(0x0120), }; -static struct usb_cdc_union_desc obex_cdc_union_desc __initdata = { +static struct usb_cdc_union_desc obex_cdc_union_desc = { .bLength = sizeof(obex_cdc_union_desc), .bDescriptorType = USB_DT_CS_INTERFACE, .bDescriptorSubType = USB_CDC_UNION_TYPE, @@ -118,7 +118,7 @@ static struct usb_cdc_union_desc obex_cdc_union_desc __initdata = { .bSlaveInterface0 = 2, }; -static struct usb_cdc_obex_desc obex_desc __initdata = { +static struct usb_cdc_obex_desc obex_desc = { .bLength = sizeof(obex_desc), .bDescriptorType = USB_DT_CS_INTERFACE, .bDescriptorSubType = USB_CDC_OBEX_TYPE, @@ -127,7 +127,7 @@ static struct usb_cdc_obex_desc obex_desc __initdata = { /* High-Speed Support */ -static struct usb_endpoint_descriptor obex_hs_ep_out_desc __initdata = { +static struct usb_endpoint_descriptor obex_hs_ep_out_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, @@ -136,7 +136,7 @@ static struct usb_endpoint_descriptor obex_hs_ep_out_desc __initdata = { .wMaxPacketSize = cpu_to_le16(512), }; -static struct usb_endpoint_descriptor obex_hs_ep_in_desc __initdata = { +static struct usb_endpoint_descriptor obex_hs_ep_in_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, @@ -145,7 +145,7 @@ static struct usb_endpoint_descriptor obex_hs_ep_in_desc __initdata = { .wMaxPacketSize = cpu_to_le16(512), }; -static struct usb_descriptor_header *hs_function[] __initdata = { +static struct usb_descriptor_header *hs_function[] = { (struct usb_descriptor_header *) &obex_control_intf, (struct usb_descriptor_header *) &obex_cdc_header_desc, (struct usb_descriptor_header *) &obex_desc, @@ -160,7 +160,7 @@ static struct usb_descriptor_header *hs_function[] __initdata = { /* Full-Speed Support */ -static struct usb_endpoint_descriptor obex_fs_ep_in_desc __initdata = { +static struct usb_endpoint_descriptor obex_fs_ep_in_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, @@ -168,7 +168,7 @@ static struct usb_endpoint_descriptor obex_fs_ep_in_desc __initdata = { .bmAttributes = USB_ENDPOINT_XFER_BULK, }; -static struct usb_endpoint_descriptor obex_fs_ep_out_desc __initdata = { +static struct usb_endpoint_descriptor obex_fs_ep_out_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, @@ -176,7 +176,7 @@ static struct usb_endpoint_descriptor obex_fs_ep_out_desc __initdata = { .bmAttributes = USB_ENDPOINT_XFER_BULK, }; -static struct usb_descriptor_header *fs_function[] __initdata = { +static struct usb_descriptor_header *fs_function[] = { (struct usb_descriptor_header *) &obex_control_intf, (struct usb_descriptor_header *) &obex_cdc_header_desc, (struct usb_descriptor_header *) &obex_desc, @@ -290,14 +290,43 @@ static void obex_disconnect(struct gserial *g) /*-------------------------------------------------------------------------*/ -static int __init -obex_bind(struct usb_configuration *c, struct usb_function *f) +/* Some controllers can't support CDC OBEX ... */ +static inline bool can_support_obex(struct usb_configuration *c) +{ + /* Since the first interface is a NOP, we can ignore the + * issue of multi-interface support on most controllers. + * + * Altsettings are mandatory, however... + */ + if (!gadget_supports_altsettings(c->cdev->gadget)) + return false; + + /* everything else is *probably* fine ... */ + return true; +} + +static int obex_bind(struct usb_configuration *c, struct usb_function *f) { struct usb_composite_dev *cdev = c->cdev; struct f_obex *obex = func_to_obex(f); int status; struct usb_ep *ep; + if (!can_support_obex(c)) + return -EINVAL; + + if (obex_string_defs[OBEX_CTRL_IDX].id == 0) { + status = usb_string_ids_tab(c->cdev, obex_string_defs); + if (status < 0) + return status; + obex_control_intf.iInterface = + obex_string_defs[OBEX_CTRL_IDX].id; + + status = obex_string_defs[OBEX_DATA_IDX].id; + obex_data_nop_intf.iInterface = status; + obex_data_intf.iInterface = status; + } + /* allocate instance-specific interface IDs, and patch descriptors */ status = usb_interface_id(c, f); @@ -376,29 +405,16 @@ fail: return status; } +#ifdef USBF_OBEX_INCLUDED + static void -obex_unbind(struct usb_configuration *c, struct usb_function *f) +obex_old_unbind(struct usb_configuration *c, struct usb_function *f) { obex_string_defs[OBEX_CTRL_IDX].id = 0; usb_free_all_descriptors(f); kfree(func_to_obex(f)); } -/* Some controllers can't support CDC OBEX ... */ -static inline bool can_support_obex(struct usb_configuration *c) -{ - /* Since the first interface is a NOP, we can ignore the - * issue of multi-interface support on most controllers. - * - * Altsettings are mandatory, however... - */ - if (!gadget_supports_altsettings(c->cdev->gadget)) - return false; - - /* everything else is *probably* fine ... */ - return true; -} - /** * obex_bind_config - add a CDC OBEX function to a configuration * @c: the configuration to support the CDC OBEX instance @@ -412,21 +428,6 @@ int __init obex_bind_config(struct usb_configuration *c, u8 port_num) struct f_obex *obex; int status; - if (!can_support_obex(c)) - return -EINVAL; - - if (obex_string_defs[OBEX_CTRL_IDX].id == 0) { - status = usb_string_ids_tab(c->cdev, obex_string_defs); - if (status < 0) - return status; - obex_control_intf.iInterface = - obex_string_defs[OBEX_CTRL_IDX].id; - - status = obex_string_defs[OBEX_DATA_IDX].id; - obex_data_nop_intf.iInterface = status; - obex_data_intf.iInterface = status; - } - /* allocate and initialize one new instance */ obex = kzalloc(sizeof *obex, GFP_KERNEL); if (!obex) @@ -441,7 +442,7 @@ int __init obex_bind_config(struct usb_configuration *c, u8 port_num) obex->port.func.strings = obex_strings; /* descriptors are per-instance copies */ obex->port.func.bind = obex_bind; - obex->port.func.unbind = obex_unbind; + obex->port.func.unbind = obex_old_unbind; obex->port.func.set_alt = obex_set_alt; obex->port.func.get_alt = obex_get_alt; obex->port.func.disable = obex_disable; @@ -453,5 +454,138 @@ int __init obex_bind_config(struct usb_configuration *c, u8 port_num) return status; } +#else + +static inline struct f_serial_opts *to_f_serial_opts(struct config_item *item) +{ + return container_of(to_config_group(item), struct f_serial_opts, + func_inst.group); +} + +CONFIGFS_ATTR_STRUCT(f_serial_opts); +static ssize_t f_obex_attr_show(struct config_item *item, + struct configfs_attribute *attr, + char *page) +{ + struct f_serial_opts *opts = to_f_serial_opts(item); + struct f_serial_opts_attribute *f_serial_opts_attr = + container_of(attr, struct f_serial_opts_attribute, attr); + ssize_t ret = 0; + + if (f_serial_opts_attr->show) + ret = f_serial_opts_attr->show(opts, page); + + return ret; +} + +static void obex_attr_release(struct config_item *item) +{ + struct f_serial_opts *opts = to_f_serial_opts(item); + + usb_put_function_instance(&opts->func_inst); +} + +static struct configfs_item_operations obex_item_ops = { + .release = obex_attr_release, + .show_attribute = f_obex_attr_show, +}; + +static ssize_t f_obex_port_num_show(struct f_serial_opts *opts, char *page) +{ + return sprintf(page, "%u\n", opts->port_num); +} + +static struct f_serial_opts_attribute f_obex_port_num = + __CONFIGFS_ATTR_RO(port_num, f_obex_port_num_show); + +static struct configfs_attribute *acm_attrs[] = { + &f_obex_port_num.attr, + NULL, +}; + +static struct config_item_type obex_func_type = { + .ct_item_ops = &obex_item_ops, + .ct_attrs = acm_attrs, + .ct_owner = THIS_MODULE, +}; + +static void obex_free_inst(struct usb_function_instance *f) +{ + struct f_serial_opts *opts; + + opts = container_of(f, struct f_serial_opts, func_inst); + gserial_free_line(opts->port_num); + kfree(opts); +} + +static struct usb_function_instance *obex_alloc_inst(void) +{ + struct f_serial_opts *opts; + int ret; + + opts = kzalloc(sizeof(*opts), GFP_KERNEL); + if (!opts) + return ERR_PTR(-ENOMEM); + + opts->func_inst.free_func_inst = obex_free_inst; + ret = gserial_alloc_line(&opts->port_num); + if (ret) { + kfree(opts); + return ERR_PTR(ret); + } + config_group_init_type_name(&opts->func_inst.group, "", + &obex_func_type); + + return &opts->func_inst; +} + +static void obex_free(struct usb_function *f) +{ + struct f_obex *obex; + + obex = func_to_obex(f); + kfree(obex); +} + +static void obex_unbind(struct usb_configuration *c, struct usb_function *f) +{ + obex_string_defs[OBEX_CTRL_IDX].id = 0; + usb_free_all_descriptors(f); +} + +struct usb_function *obex_alloc(struct usb_function_instance *fi) +{ + struct f_obex *obex; + struct f_serial_opts *opts; + + /* allocate and initialize one new instance */ + obex = kzalloc(sizeof(*obex), GFP_KERNEL); + if (!obex) + return ERR_PTR(-ENOMEM); + + opts = container_of(fi, struct f_serial_opts, func_inst); + + obex->port_num = opts->port_num; + + obex->port.connect = obex_connect; + obex->port.disconnect = obex_disconnect; + + obex->port.func.name = "obex"; + obex->port.func.strings = obex_strings; + /* descriptors are per-instance copies */ + obex->port.func.bind = obex_bind; + obex->port.func.unbind = obex_unbind; + obex->port.func.set_alt = obex_set_alt; + obex->port.func.get_alt = obex_get_alt; + obex->port.func.disable = obex_disable; + obex->port.func.free_func = obex_free; + + return &obex->port.func; +} + +DECLARE_USB_FUNCTION_INIT(obex, obex_alloc_inst, obex_alloc); + +#endif + MODULE_AUTHOR("Felipe Balbi"); MODULE_LICENSE("GPL"); diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c index cc9c49c57c80..36e8c44d8e5e 100644 --- a/drivers/usb/gadget/f_rndis.c +++ b/drivers/usb/gadget/f_rndis.c @@ -813,7 +813,7 @@ static inline bool can_support_rndis(struct usb_configuration *c) int rndis_bind_config_vendor(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], - u32 vendorID, const char *manufacturer) + u32 vendorID, const char *manufacturer, struct eth_dev *dev) { struct f_rndis *rndis; int status; @@ -846,6 +846,7 @@ rndis_bind_config_vendor(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], rndis->vendorID = vendorID; rndis->manufacturer = manufacturer; + rndis->port.ioport = dev; /* RNDIS activates when the host changes this filter */ rndis->port.cdc_filter = 0; diff --git a/drivers/usb/gadget/f_serial.c b/drivers/usb/gadget/f_serial.c index da33cfb3031d..981113c9924d 100644 --- a/drivers/usb/gadget/f_serial.c +++ b/drivers/usb/gadget/f_serial.c @@ -12,6 +12,7 @@ #include <linux/slab.h> #include <linux/kernel.h> +#include <linux/module.h> #include <linux/device.h> #include "u_serial.h" @@ -42,7 +43,7 @@ static inline struct f_gser *func_to_gser(struct usb_function *f) /* interface descriptor: */ -static struct usb_interface_descriptor gser_interface_desc __initdata = { +static struct usb_interface_descriptor gser_interface_desc = { .bLength = USB_DT_INTERFACE_SIZE, .bDescriptorType = USB_DT_INTERFACE, /* .bInterfaceNumber = DYNAMIC */ @@ -55,21 +56,21 @@ static struct usb_interface_descriptor gser_interface_desc __initdata = { /* full speed support: */ -static struct usb_endpoint_descriptor gser_fs_in_desc __initdata = { +static struct usb_endpoint_descriptor gser_fs_in_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, .bEndpointAddress = USB_DIR_IN, .bmAttributes = USB_ENDPOINT_XFER_BULK, }; -static struct usb_endpoint_descriptor gser_fs_out_desc __initdata = { +static struct usb_endpoint_descriptor gser_fs_out_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, .bEndpointAddress = USB_DIR_OUT, .bmAttributes = USB_ENDPOINT_XFER_BULK, }; -static struct usb_descriptor_header *gser_fs_function[] __initdata = { +static struct usb_descriptor_header *gser_fs_function[] = { (struct usb_descriptor_header *) &gser_interface_desc, (struct usb_descriptor_header *) &gser_fs_in_desc, (struct usb_descriptor_header *) &gser_fs_out_desc, @@ -78,47 +79,47 @@ static struct usb_descriptor_header *gser_fs_function[] __initdata = { /* high speed support: */ -static struct usb_endpoint_descriptor gser_hs_in_desc __initdata = { +static struct usb_endpoint_descriptor gser_hs_in_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, .bmAttributes = USB_ENDPOINT_XFER_BULK, .wMaxPacketSize = cpu_to_le16(512), }; -static struct usb_endpoint_descriptor gser_hs_out_desc __initdata = { +static struct usb_endpoint_descriptor gser_hs_out_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, .bmAttributes = USB_ENDPOINT_XFER_BULK, .wMaxPacketSize = cpu_to_le16(512), }; -static struct usb_descriptor_header *gser_hs_function[] __initdata = { +static struct usb_descriptor_header *gser_hs_function[] = { (struct usb_descriptor_header *) &gser_interface_desc, (struct usb_descriptor_header *) &gser_hs_in_desc, (struct usb_descriptor_header *) &gser_hs_out_desc, NULL, }; -static struct usb_endpoint_descriptor gser_ss_in_desc __initdata = { +static struct usb_endpoint_descriptor gser_ss_in_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, .bmAttributes = USB_ENDPOINT_XFER_BULK, .wMaxPacketSize = cpu_to_le16(1024), }; -static struct usb_endpoint_descriptor gser_ss_out_desc __initdata = { +static struct usb_endpoint_descriptor gser_ss_out_desc = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, .bmAttributes = USB_ENDPOINT_XFER_BULK, .wMaxPacketSize = cpu_to_le16(1024), }; -static struct usb_ss_ep_comp_descriptor gser_ss_bulk_comp_desc __initdata = { +static struct usb_ss_ep_comp_descriptor gser_ss_bulk_comp_desc = { .bLength = sizeof gser_ss_bulk_comp_desc, .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, }; -static struct usb_descriptor_header *gser_ss_function[] __initdata = { +static struct usb_descriptor_header *gser_ss_function[] = { (struct usb_descriptor_header *) &gser_interface_desc, (struct usb_descriptor_header *) &gser_ss_in_desc, (struct usb_descriptor_header *) &gser_ss_bulk_comp_desc, @@ -183,14 +184,25 @@ static void gser_disable(struct usb_function *f) /* serial function driver setup/binding */ -static int __init -gser_bind(struct usb_configuration *c, struct usb_function *f) +static int gser_bind(struct usb_configuration *c, struct usb_function *f) { struct usb_composite_dev *cdev = c->cdev; struct f_gser *gser = func_to_gser(f); int status; struct usb_ep *ep; + /* REVISIT might want instance-specific strings to help + * distinguish instances ... + */ + + /* maybe allocate device-global string ID */ + if (gser_string_defs[0].id == 0) { + status = usb_string_id(c->cdev); + if (status < 0) + return status; + gser_string_defs[0].id = status; + } + /* allocate instance-specific interface IDs */ status = usb_interface_id(c, f); if (status < 0) @@ -246,44 +258,115 @@ fail: return status; } -static void -gser_unbind(struct usb_configuration *c, struct usb_function *f) +static inline struct f_serial_opts *to_f_serial_opts(struct config_item *item) { - usb_free_all_descriptors(f); - kfree(func_to_gser(f)); + return container_of(to_config_group(item), struct f_serial_opts, + func_inst.group); } -/** - * gser_bind_config - add a generic serial function to a configuration - * @c: the configuration to support the serial instance - * @port_num: /dev/ttyGS* port this interface will use - * Context: single threaded during gadget setup - * - * Returns zero on success, else negative errno. - */ -int __init gser_bind_config(struct usb_configuration *c, u8 port_num) +CONFIGFS_ATTR_STRUCT(f_serial_opts); +static ssize_t f_serial_attr_show(struct config_item *item, + struct configfs_attribute *attr, + char *page) { - struct f_gser *gser; - int status; + struct f_serial_opts *opts = to_f_serial_opts(item); + struct f_serial_opts_attribute *f_serial_opts_attr = + container_of(attr, struct f_serial_opts_attribute, attr); + ssize_t ret = 0; - /* REVISIT might want instance-specific strings to help - * distinguish instances ... - */ + if (f_serial_opts_attr->show) + ret = f_serial_opts_attr->show(opts, page); - /* maybe allocate device-global string ID */ - if (gser_string_defs[0].id == 0) { - status = usb_string_id(c->cdev); - if (status < 0) - return status; - gser_string_defs[0].id = status; + return ret; +} + +static void serial_attr_release(struct config_item *item) +{ + struct f_serial_opts *opts = to_f_serial_opts(item); + + usb_put_function_instance(&opts->func_inst); +} + +static struct configfs_item_operations serial_item_ops = { + .release = serial_attr_release, + .show_attribute = f_serial_attr_show, +}; + +static ssize_t f_serial_port_num_show(struct f_serial_opts *opts, char *page) +{ + return sprintf(page, "%u\n", opts->port_num); +} + +static struct f_serial_opts_attribute f_serial_port_num = + __CONFIGFS_ATTR_RO(port_num, f_serial_port_num_show); + +static struct configfs_attribute *acm_attrs[] = { + &f_serial_port_num.attr, + NULL, +}; + +static struct config_item_type serial_func_type = { + .ct_item_ops = &serial_item_ops, + .ct_attrs = acm_attrs, + .ct_owner = THIS_MODULE, +}; + +static void gser_free_inst(struct usb_function_instance *f) +{ + struct f_serial_opts *opts; + + opts = container_of(f, struct f_serial_opts, func_inst); + gserial_free_line(opts->port_num); + kfree(opts); +} + +static struct usb_function_instance *gser_alloc_inst(void) +{ + struct f_serial_opts *opts; + int ret; + + opts = kzalloc(sizeof(*opts), GFP_KERNEL); + if (!opts) + return ERR_PTR(-ENOMEM); + + opts->func_inst.free_func_inst = gser_free_inst; + ret = gserial_alloc_line(&opts->port_num); + if (ret) { + kfree(opts); + return ERR_PTR(ret); } + config_group_init_type_name(&opts->func_inst.group, "", + &serial_func_type); + + return &opts->func_inst; +} + +static void gser_free(struct usb_function *f) +{ + struct f_gser *serial; + + serial = func_to_gser(f); + kfree(serial); +} + +static void gser_unbind(struct usb_configuration *c, struct usb_function *f) +{ + usb_free_all_descriptors(f); +} + +struct usb_function *gser_alloc(struct usb_function_instance *fi) +{ + struct f_gser *gser; + struct f_serial_opts *opts; /* allocate and initialize one new instance */ - gser = kzalloc(sizeof *gser, GFP_KERNEL); + gser = kzalloc(sizeof(*gser), GFP_KERNEL); if (!gser) - return -ENOMEM; + return ERR_PTR(-ENOMEM); - gser->port_num = port_num; + opts = container_of(fi, struct f_serial_opts, func_inst); + + gser->port_num = opts->port_num; gser->port.func.name = "gser"; gser->port.func.strings = gser_strings; @@ -291,9 +374,12 @@ int __init gser_bind_config(struct usb_configuration *c, u8 port_num) gser->port.func.unbind = gser_unbind; gser->port.func.set_alt = gser_set_alt; gser->port.func.disable = gser_disable; + gser->port.func.free_func = gser_free; - status = usb_add_function(c, &gser->port.func); - if (status) - kfree(gser); - return status; + return &gser->port.func; } + +DECLARE_USB_FUNCTION_INIT(gser, gser_alloc_inst, gser_alloc); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Al Borchers"); +MODULE_AUTHOR("David Brownell"); diff --git a/drivers/usb/gadget/f_subset.c b/drivers/usb/gadget/f_subset.c index f172bd152fbb..185d6f5e4e4d 100644 --- a/drivers/usb/gadget/f_subset.c +++ b/drivers/usb/gadget/f_subset.c @@ -380,7 +380,8 @@ geth_unbind(struct usb_configuration *c, struct usb_function *f) * Caller must have called @gether_setup(). Caller is also responsible * for calling @gether_cleanup() before module unload. */ -int geth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]) +int geth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], + struct eth_dev *dev) { struct f_gether *geth; int status; @@ -406,6 +407,7 @@ int geth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]) snprintf(geth->ethaddr, sizeof geth->ethaddr, "%pm", ethaddr); geth_string_defs[1].s = geth->ethaddr; + geth->port.ioport = dev; geth->port.cdc_filter = DEFAULT_FILTER; geth->port.func.name = "cdc_subset"; diff --git a/drivers/usb/gadget/f_uvc.c b/drivers/usb/gadget/f_uvc.c index 92efd6ec48af..38dcedddc52c 100644 --- a/drivers/usb/gadget/f_uvc.c +++ b/drivers/usb/gadget/f_uvc.c @@ -33,19 +33,15 @@ unsigned int uvc_gadget_trace_param; /*-------------------------------------------------------------------------*/ /* module parameters specific to the Video streaming endpoint */ -static unsigned streaming_interval = 1; +static unsigned int streaming_interval = 1; module_param(streaming_interval, uint, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(streaming_interval, "1 - 16"); -static unsigned streaming_maxpacket = 1024; +static unsigned int streaming_maxpacket = 1024; module_param(streaming_maxpacket, uint, S_IRUGO|S_IWUSR); -MODULE_PARM_DESC(streaming_maxpacket, "0 - 1023 (fs), 0 - 1024 (hs/ss)"); +MODULE_PARM_DESC(streaming_maxpacket, "1 - 1023 (FS), 1 - 3072 (hs/ss)"); -static unsigned streaming_mult; -module_param(streaming_mult, uint, S_IRUGO|S_IWUSR); -MODULE_PARM_DESC(streaming_mult, "0 - 2 (hs/ss only)"); - -static unsigned streaming_maxburst; +static unsigned int streaming_maxburst; module_param(streaming_maxburst, uint, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(streaming_maxburst, "0 - 15 (ss only)"); @@ -55,13 +51,11 @@ MODULE_PARM_DESC(streaming_maxburst, "0 - 15 (ss only)"); /* string IDs are assigned dynamically */ -#define UVC_STRING_ASSOCIATION_IDX 0 -#define UVC_STRING_CONTROL_IDX 1 -#define UVC_STRING_STREAMING_IDX 2 +#define UVC_STRING_CONTROL_IDX 0 +#define UVC_STRING_STREAMING_IDX 1 static struct usb_string uvc_en_us_strings[] = { - [UVC_STRING_ASSOCIATION_IDX].s = "UVC Camera", - [UVC_STRING_CONTROL_IDX].s = "Video Control", + [UVC_STRING_CONTROL_IDX].s = "UVC Camera", [UVC_STRING_STREAMING_IDX].s = "Video Streaming", { } }; @@ -79,7 +73,7 @@ static struct usb_gadget_strings *uvc_function_strings[] = { #define UVC_INTF_VIDEO_CONTROL 0 #define UVC_INTF_VIDEO_STREAMING 1 -#define STATUS_BYTECOUNT 16 /* 16 bytes status */ +#define UVC_STATUS_MAX_PACKET_SIZE 16 /* 16 bytes status */ static struct usb_interface_assoc_descriptor uvc_iad __initdata = { .bLength = sizeof(uvc_iad), @@ -104,20 +98,29 @@ static struct usb_interface_descriptor uvc_control_intf __initdata = { .iInterface = 0, }; -static struct usb_endpoint_descriptor uvc_fs_control_ep __initdata = { +static struct usb_endpoint_descriptor uvc_control_ep __initdata = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, .bEndpointAddress = USB_DIR_IN, .bmAttributes = USB_ENDPOINT_XFER_INT, - .wMaxPacketSize = cpu_to_le16(STATUS_BYTECOUNT), + .wMaxPacketSize = cpu_to_le16(UVC_STATUS_MAX_PACKET_SIZE), .bInterval = 8, }; +static struct usb_ss_ep_comp_descriptor uvc_ss_control_comp __initdata = { + .bLength = sizeof(uvc_ss_control_comp), + .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, + /* The following 3 values can be tweaked if necessary. */ + .bMaxBurst = 0, + .bmAttributes = 0, + .wBytesPerInterval = cpu_to_le16(UVC_STATUS_MAX_PACKET_SIZE), +}; + static struct uvc_control_endpoint_descriptor uvc_control_cs_ep __initdata = { .bLength = UVC_DT_CONTROL_ENDPOINT_SIZE, .bDescriptorType = USB_DT_CS_ENDPOINT, .bDescriptorSubType = UVC_EP_INTERRUPT, - .wMaxTransferSize = cpu_to_le16(STATUS_BYTECOUNT), + .wMaxTransferSize = cpu_to_le16(UVC_STATUS_MAX_PACKET_SIZE), }; static struct usb_interface_descriptor uvc_streaming_intf_alt0 __initdata = { @@ -144,63 +147,53 @@ static struct usb_interface_descriptor uvc_streaming_intf_alt1 __initdata = { .iInterface = 0, }; -static struct usb_endpoint_descriptor uvc_fs_streaming_ep = { +static struct usb_endpoint_descriptor uvc_fs_streaming_ep __initdata = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, .bEndpointAddress = USB_DIR_IN, - .bmAttributes = USB_ENDPOINT_XFER_ISOC, - .wMaxPacketSize = cpu_to_le16(512), - .bInterval = 1, + .bmAttributes = USB_ENDPOINT_SYNC_ASYNC + | USB_ENDPOINT_XFER_ISOC, + /* The wMaxPacketSize and bInterval values will be initialized from + * module parameters. + */ + .wMaxPacketSize = 0, + .bInterval = 0, }; -static struct usb_endpoint_descriptor uvc_hs_streaming_ep = { +static struct usb_endpoint_descriptor uvc_hs_streaming_ep __initdata = { .bLength = USB_DT_ENDPOINT_SIZE, .bDescriptorType = USB_DT_ENDPOINT, .bEndpointAddress = USB_DIR_IN, - .bmAttributes = USB_ENDPOINT_XFER_ISOC, - .wMaxPacketSize = cpu_to_le16(1024), - .bInterval = 1, -}; - -/* super speed support */ -static struct usb_endpoint_descriptor uvc_ss_control_ep __initdata = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, - - .bEndpointAddress = USB_DIR_IN, - .bmAttributes = USB_ENDPOINT_XFER_INT, - .wMaxPacketSize = cpu_to_le16(STATUS_BYTECOUNT), - .bInterval = 8, -}; - -static struct usb_ss_ep_comp_descriptor uvc_ss_control_comp __initdata = { - .bLength = sizeof uvc_ss_control_comp, - .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, - - /* the following 3 values can be tweaked if necessary */ - /* .bMaxBurst = 0, */ - /* .bmAttributes = 0, */ - .wBytesPerInterval = cpu_to_le16(STATUS_BYTECOUNT), + .bmAttributes = USB_ENDPOINT_SYNC_ASYNC + | USB_ENDPOINT_XFER_ISOC, + /* The wMaxPacketSize and bInterval values will be initialized from + * module parameters. + */ + .wMaxPacketSize = 0, + .bInterval = 0, }; static struct usb_endpoint_descriptor uvc_ss_streaming_ep __initdata = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, + .bLength = USB_DT_ENDPOINT_SIZE, + .bDescriptorType = USB_DT_ENDPOINT, - .bEndpointAddress = USB_DIR_IN, - .bmAttributes = USB_ENDPOINT_XFER_ISOC, - .wMaxPacketSize = cpu_to_le16(1024), - .bInterval = 4, + .bEndpointAddress = USB_DIR_IN, + .bmAttributes = USB_ENDPOINT_SYNC_ASYNC + | USB_ENDPOINT_XFER_ISOC, + /* The wMaxPacketSize and bInterval values will be initialized from + * module parameters. + */ + .wMaxPacketSize = 0, + .bInterval = 0, }; -static struct usb_ss_ep_comp_descriptor uvc_ss_streaming_comp = { - .bLength = sizeof uvc_ss_streaming_comp, - .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, - - /* the following 3 values can be tweaked if necessary */ - .bMaxBurst = 0, - .bmAttributes = 0, - .wBytesPerInterval = cpu_to_le16(1024), +static struct usb_ss_ep_comp_descriptor uvc_ss_streaming_comp __initdata = { + .bLength = sizeof(uvc_ss_streaming_comp), + .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, + /* The following 3 values can be tweaked if necessary. */ + .bMaxBurst = 0, + .bmAttributes = 0, + .wBytesPerInterval = cpu_to_le16(1024), }; static const struct usb_descriptor_header * const uvc_fs_streaming[] = { @@ -273,6 +266,13 @@ uvc_function_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl) return 0; } +void uvc_function_setup_continue(struct uvc_device *uvc) +{ + struct usb_composite_dev *cdev = uvc->func.config->cdev; + + usb_composite_setup_continue(cdev); +} + static int uvc_function_get_alt(struct usb_function *f, unsigned interface) { @@ -335,7 +335,7 @@ uvc_function_set_alt(struct usb_function *f, unsigned interface, unsigned alt) v4l2_event_queue(uvc->vdev, &v4l2_event); uvc->state = UVC_STATE_CONNECTED; - break; + return 0; case 1: if (uvc->state != UVC_STATE_CONNECTED) @@ -352,15 +352,11 @@ uvc_function_set_alt(struct usb_function *f, unsigned interface, unsigned alt) memset(&v4l2_event, 0, sizeof(v4l2_event)); v4l2_event.type = UVC_EVENT_STREAMON; v4l2_event_queue(uvc->vdev, &v4l2_event); - - uvc->state = UVC_STATE_STREAMING; - break; + return USB_GADGET_DELAYED_STATUS; default: return -EINVAL; } - - return 0; } static void @@ -454,7 +450,6 @@ uvc_copy_descriptors(struct uvc_device *uvc, enum usb_device_speed speed) const struct uvc_descriptor_header * const *uvc_streaming_cls; const struct usb_descriptor_header * const *uvc_streaming_std; const struct usb_descriptor_header * const *src; - static struct usb_endpoint_descriptor *uvc_control_ep; struct usb_descriptor_header **dst; struct usb_descriptor_header **hdr; unsigned int control_size; @@ -468,14 +463,12 @@ uvc_copy_descriptors(struct uvc_device *uvc, enum usb_device_speed speed) uvc_control_desc = uvc->desc.ss_control; uvc_streaming_cls = uvc->desc.ss_streaming; uvc_streaming_std = uvc_ss_streaming; - uvc_control_ep = &uvc_ss_control_ep; break; case USB_SPEED_HIGH: uvc_control_desc = uvc->desc.fs_control; uvc_streaming_cls = uvc->desc.hs_streaming; uvc_streaming_std = uvc_hs_streaming; - uvc_control_ep = &uvc_fs_control_ep; break; case USB_SPEED_FULL: @@ -483,7 +476,6 @@ uvc_copy_descriptors(struct uvc_device *uvc, enum usb_device_speed speed) uvc_control_desc = uvc->desc.fs_control; uvc_streaming_cls = uvc->desc.fs_streaming; uvc_streaming_std = uvc_fs_streaming; - uvc_control_ep = &uvc_fs_control_ep; break; } @@ -494,6 +486,7 @@ uvc_copy_descriptors(struct uvc_device *uvc, enum usb_device_speed speed) * Class-specific UVC control descriptors * uvc_control_ep * uvc_control_cs_ep + * uvc_ss_control_comp (for SS only) * uvc_streaming_intf_alt0 * Class-specific UVC streaming descriptors * uvc_{fs|hs}_streaming @@ -503,7 +496,7 @@ uvc_copy_descriptors(struct uvc_device *uvc, enum usb_device_speed speed) control_size = 0; streaming_size = 0; bytes = uvc_iad.bLength + uvc_control_intf.bLength - + uvc_control_ep->bLength + uvc_control_cs_ep.bLength + + uvc_control_ep.bLength + uvc_control_cs_ep.bLength + uvc_streaming_intf_alt0.bLength; if (speed == USB_SPEED_SUPER) { @@ -514,13 +507,13 @@ uvc_copy_descriptors(struct uvc_device *uvc, enum usb_device_speed speed) } for (src = (const struct usb_descriptor_header **)uvc_control_desc; - *src; ++src) { + *src; ++src) { control_size += (*src)->bLength; bytes += (*src)->bLength; n_desc++; } for (src = (const struct usb_descriptor_header **)uvc_streaming_cls; - *src; ++src) { + *src; ++src) { streaming_size += (*src)->bLength; bytes += (*src)->bLength; n_desc++; @@ -549,7 +542,7 @@ uvc_copy_descriptors(struct uvc_device *uvc, enum usb_device_speed speed) uvc_control_header->bInCollection = 1; uvc_control_header->baInterfaceNr[0] = uvc->streaming_intf; - UVC_COPY_DESCRIPTOR(mem, dst, uvc_control_ep); + UVC_COPY_DESCRIPTOR(mem, dst, &uvc_control_ep); if (speed == USB_SPEED_SUPER) UVC_COPY_DESCRIPTOR(mem, dst, &uvc_ss_control_comp); @@ -560,8 +553,7 @@ uvc_copy_descriptors(struct uvc_device *uvc, enum usb_device_speed speed) UVC_COPY_DESCRIPTORS(mem, dst, (const struct usb_descriptor_header**)uvc_streaming_cls); uvc_streaming_header->wTotalLength = cpu_to_le16(streaming_size); - uvc_streaming_header->bEndpointAddress = - uvc_fs_streaming_ep.bEndpointAddress; + uvc_streaming_header->bEndpointAddress = uvc->video.ep->address; UVC_COPY_DESCRIPTORS(mem, dst, uvc_streaming_std); @@ -581,7 +573,7 @@ uvc_function_unbind(struct usb_configuration *c, struct usb_function *f) uvc->control_ep->driver_data = NULL; uvc->video.ep->driver_data = NULL; - uvc_en_us_strings[UVC_STRING_ASSOCIATION_IDX].id = 0; + uvc_en_us_strings[UVC_STRING_CONTROL_IDX].id = 0; usb_ep_free_request(cdev->gadget->ep0, uvc->control_req); kfree(uvc->control_buf); @@ -595,31 +587,52 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f) { struct usb_composite_dev *cdev = c->cdev; struct uvc_device *uvc = to_uvc(f); + unsigned int max_packet_mult; + unsigned int max_packet_size; struct usb_ep *ep; int ret = -EINVAL; INFO(cdev, "uvc_function_bind\n"); - /* sanity check the streaming endpoint module parameters */ - if (streaming_interval < 1) - streaming_interval = 1; - if (streaming_interval > 16) - streaming_interval = 16; - if (streaming_mult > 2) - streaming_mult = 2; - if (streaming_maxburst > 15) - streaming_maxburst = 15; - - /* - * fill in the FS video streaming specific descriptors from the - * module parameters + /* Sanity check the streaming endpoint module parameters. */ - uvc_fs_streaming_ep.wMaxPacketSize = streaming_maxpacket > 1023 ? - 1023 : streaming_maxpacket; + streaming_interval = clamp(streaming_interval, 1U, 16U); + streaming_maxpacket = clamp(streaming_maxpacket, 1U, 3072U); + streaming_maxburst = min(streaming_maxburst, 15U); + + /* Fill in the FS/HS/SS Video Streaming specific descriptors from the + * module parameters. + * + * NOTE: We assume that the user knows what they are doing and won't + * give parameters that their UDC doesn't support. + */ + if (streaming_maxpacket <= 1024) { + max_packet_mult = 1; + max_packet_size = streaming_maxpacket; + } else if (streaming_maxpacket <= 2048) { + max_packet_mult = 2; + max_packet_size = streaming_maxpacket / 2; + } else { + max_packet_mult = 3; + max_packet_size = streaming_maxpacket / 3; + } + + uvc_fs_streaming_ep.wMaxPacketSize = min(streaming_maxpacket, 1023U); uvc_fs_streaming_ep.bInterval = streaming_interval; + uvc_hs_streaming_ep.wMaxPacketSize = max_packet_size; + uvc_hs_streaming_ep.wMaxPacketSize |= ((max_packet_mult - 1) << 11); + uvc_hs_streaming_ep.bInterval = streaming_interval; + + uvc_ss_streaming_ep.wMaxPacketSize = max_packet_size; + uvc_ss_streaming_ep.bInterval = streaming_interval; + uvc_ss_streaming_comp.bmAttributes = max_packet_mult - 1; + uvc_ss_streaming_comp.bMaxBurst = streaming_maxburst; + uvc_ss_streaming_comp.wBytesPerInterval = + max_packet_size * max_packet_mult * streaming_maxburst; + /* Allocate endpoints. */ - ep = usb_ep_autoconfig(cdev->gadget, &uvc_fs_control_ep); + ep = usb_ep_autoconfig(cdev->gadget, &uvc_control_ep); if (!ep) { INFO(cdev, "Unable to allocate control EP\n"); goto error; @@ -627,7 +640,14 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f) uvc->control_ep = ep; ep->driver_data = uvc; - ep = usb_ep_autoconfig(cdev->gadget, &uvc_fs_streaming_ep); + if (gadget_is_superspeed(c->cdev->gadget)) + ep = usb_ep_autoconfig_ss(cdev->gadget, &uvc_ss_streaming_ep, + &uvc_ss_streaming_comp); + else if (gadget_is_dualspeed(cdev->gadget)) + ep = usb_ep_autoconfig(cdev->gadget, &uvc_hs_streaming_ep); + else + ep = usb_ep_autoconfig(cdev->gadget, &uvc_fs_streaming_ep); + if (!ep) { INFO(cdev, "Unable to allocate streaming EP\n"); goto error; @@ -635,6 +655,10 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f) uvc->video.ep = ep; ep->driver_data = uvc; + uvc_fs_streaming_ep.bEndpointAddress = uvc->video.ep->address; + uvc_hs_streaming_ep.bEndpointAddress = uvc->video.ep->address; + uvc_ss_streaming_ep.bEndpointAddress = uvc->video.ep->address; + /* Allocate interface IDs. */ if ((ret = usb_interface_id(c, f)) < 0) goto error; @@ -648,37 +672,6 @@ uvc_function_bind(struct usb_configuration *c, struct usb_function *f) uvc_streaming_intf_alt1.bInterfaceNumber = ret; uvc->streaming_intf = ret; - /* sanity check the streaming endpoint module parameters */ - if (streaming_maxpacket > 1024) - streaming_maxpacket = 1024; - /* - * Fill in the HS descriptors from the module parameters for the Video - * Streaming endpoint. - * NOTE: We assume that the user knows what they are doing and won't - * give parameters that their UDC doesn't support. - */ - uvc_hs_streaming_ep.wMaxPacketSize = streaming_maxpacket; - uvc_hs_streaming_ep.wMaxPacketSize |= streaming_mult << 11; - uvc_hs_streaming_ep.bInterval = streaming_interval; - uvc_hs_streaming_ep.bEndpointAddress = - uvc_fs_streaming_ep.bEndpointAddress; - - /* - * Fill in the SS descriptors from the module parameters for the Video - * Streaming endpoint. - * NOTE: We assume that the user knows what they are doing and won't - * give parameters that their UDC doesn't support. - */ - uvc_ss_streaming_ep.wMaxPacketSize = streaming_maxpacket; - uvc_ss_streaming_ep.bInterval = streaming_interval; - uvc_ss_streaming_comp.bmAttributes = streaming_mult; - uvc_ss_streaming_comp.bMaxBurst = streaming_maxburst; - uvc_ss_streaming_comp.wBytesPerInterval = - streaming_maxpacket * (streaming_mult + 1) * - (streaming_maxburst + 1); - uvc_ss_streaming_ep.bEndpointAddress = - uvc_fs_streaming_ep.bEndpointAddress; - /* Copy descriptors */ f->fs_descriptors = uvc_copy_descriptors(uvc, USB_SPEED_FULL); if (gadget_is_dualspeed(cdev->gadget)) @@ -775,23 +768,23 @@ uvc_bind_config(struct usb_configuration *c, /* Validate the descriptors. */ if (fs_control == NULL || fs_control[0] == NULL || - fs_control[0]->bDescriptorSubType != UVC_VC_HEADER) + fs_control[0]->bDescriptorSubType != UVC_VC_HEADER) goto error; if (ss_control == NULL || ss_control[0] == NULL || - ss_control[0]->bDescriptorSubType != UVC_VC_HEADER) + ss_control[0]->bDescriptorSubType != UVC_VC_HEADER) goto error; if (fs_streaming == NULL || fs_streaming[0] == NULL || - fs_streaming[0]->bDescriptorSubType != UVC_VS_INPUT_HEADER) + fs_streaming[0]->bDescriptorSubType != UVC_VS_INPUT_HEADER) goto error; if (hs_streaming == NULL || hs_streaming[0] == NULL || - hs_streaming[0]->bDescriptorSubType != UVC_VS_INPUT_HEADER) + hs_streaming[0]->bDescriptorSubType != UVC_VS_INPUT_HEADER) goto error; if (ss_streaming == NULL || ss_streaming[0] == NULL || - ss_streaming[0]->bDescriptorSubType != UVC_VS_INPUT_HEADER) + ss_streaming[0]->bDescriptorSubType != UVC_VS_INPUT_HEADER) goto error; uvc->desc.fs_control = fs_control; @@ -800,13 +793,16 @@ uvc_bind_config(struct usb_configuration *c, uvc->desc.hs_streaming = hs_streaming; uvc->desc.ss_streaming = ss_streaming; - /* Allocate string descriptor numbers. */ - if (uvc_en_us_strings[UVC_STRING_ASSOCIATION_IDX].id == 0) { + /* String descriptors are global, we only need to allocate string IDs + * for the first UVC function. UVC functions beyond the first (if any) + * will reuse the same IDs. + */ + if (uvc_en_us_strings[UVC_STRING_CONTROL_IDX].id == 0) { ret = usb_string_ids_tab(c->cdev, uvc_en_us_strings); if (ret) goto error; uvc_iad.iFunction = - uvc_en_us_strings[UVC_STRING_ASSOCIATION_IDX].id; + uvc_en_us_strings[UVC_STRING_CONTROL_IDX].id; uvc_control_intf.iInterface = uvc_en_us_strings[UVC_STRING_CONTROL_IDX].id; ret = uvc_en_us_strings[UVC_STRING_STREAMING_IDX].id; diff --git a/drivers/usb/gadget/f_uvc.h b/drivers/usb/gadget/f_uvc.h index c3d258d30188..ec52752f7326 100644 --- a/drivers/usb/gadget/f_uvc.h +++ b/drivers/usb/gadget/f_uvc.h @@ -16,12 +16,12 @@ #include <linux/usb/composite.h> #include <linux/usb/video.h> -extern int uvc_bind_config(struct usb_configuration *c, - const struct uvc_descriptor_header * const *fs_control, - const struct uvc_descriptor_header * const *hs_control, - const struct uvc_descriptor_header * const *fs_streaming, - const struct uvc_descriptor_header * const *hs_streaming, - const struct uvc_descriptor_header * const *ss_streaming); +int uvc_bind_config(struct usb_configuration *c, + const struct uvc_descriptor_header * const *fs_control, + const struct uvc_descriptor_header * const *hs_control, + const struct uvc_descriptor_header * const *fs_streaming, + const struct uvc_descriptor_header * const *hs_streaming, + const struct uvc_descriptor_header * const *ss_streaming); #endif /* _F_UVC_H_ */ diff --git a/drivers/usb/gadget/fsl_qe_udc.c b/drivers/usb/gadget/fsl_qe_udc.c index 034477ce77c6..9a7ee3347e4d 100644 --- a/drivers/usb/gadget/fsl_qe_udc.c +++ b/drivers/usb/gadget/fsl_qe_udc.c @@ -2296,7 +2296,6 @@ static int fsl_qe_start(struct usb_gadget *gadget, driver->driver.bus = NULL; /* hook up the driver */ udc->driver = driver; - udc->gadget.dev.driver = &driver->driver; udc->gadget.speed = driver->max_speed; /* Enable IRQ reg and Set usbcmd reg EN bit */ @@ -2338,7 +2337,6 @@ static int fsl_qe_stop(struct usb_gadget *gadget, nuke(loop_ep, -ESHUTDOWN); spin_unlock_irqrestore(&udc->lock, flags); - udc->gadget.dev.driver = NULL; udc->driver = NULL; dev_info(udc->dev, "unregistered gadget driver '%s'\r\n", @@ -2523,12 +2521,6 @@ static int qe_udc_probe(struct platform_device *ofdev) /* name: Identifies the controller hardware type. */ udc->gadget.name = driver_name; - - device_initialize(&udc->gadget.dev); - - dev_set_name(&udc->gadget.dev, "gadget"); - - udc->gadget.dev.release = qe_udc_release; udc->gadget.dev.parent = &ofdev->dev; /* initialize qe_ep struct */ @@ -2592,22 +2584,17 @@ static int qe_udc_probe(struct platform_device *ofdev) goto err5; } - ret = device_add(&udc->gadget.dev); + ret = usb_add_gadget_udc_release(&ofdev->dev, &udc->gadget, + qe_udc_release); if (ret) goto err6; - ret = usb_add_gadget_udc(&ofdev->dev, &udc->gadget); - if (ret) - goto err7; - dev_set_drvdata(&ofdev->dev, udc); dev_info(udc->dev, "%s USB controller initialized as device\n", (udc->soc_type == PORT_QE) ? "QE" : "CPM"); return 0; -err7: - device_unregister(&udc->gadget.dev); err6: free_irq(udc->usb_irq, udc); err5: @@ -2702,7 +2689,6 @@ static int qe_udc_remove(struct platform_device *ofdev) iounmap(udc->usb_regs); - device_unregister(&udc->gadget.dev); /* wait for release() of gadget.dev to free udc */ wait_for_completion(&done); diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c index 04d5fef1440c..7c2a101d19ac 100644 --- a/drivers/usb/gadget/fsl_udc_core.c +++ b/drivers/usb/gadget/fsl_udc_core.c @@ -185,20 +185,7 @@ static void done(struct fsl_ep *ep, struct fsl_req *req, int status) dma_pool_free(udc->td_pool, curr_td, curr_td->td_dma); } - if (req->mapped) { - dma_unmap_single(ep->udc->gadget.dev.parent, - req->req.dma, req->req.length, - ep_is_in(ep) - ? DMA_TO_DEVICE - : DMA_FROM_DEVICE); - req->req.dma = DMA_ADDR_INVALID; - req->mapped = 0; - } else - dma_sync_single_for_cpu(ep->udc->gadget.dev.parent, - req->req.dma, req->req.length, - ep_is_in(ep) - ? DMA_TO_DEVICE - : DMA_FROM_DEVICE); + usb_gadget_unmap_request(&ep->udc->gadget, &req->req, ep_is_in(ep)); if (status && (status != -ESHUTDOWN)) VDBG("complete %s req %p stat %d len %u/%u", @@ -888,6 +875,7 @@ fsl_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) struct fsl_req *req = container_of(_req, struct fsl_req, req); struct fsl_udc *udc; unsigned long flags; + int ret; /* catch various bogus parameters */ if (!_req || !req->req.complete || !req->req.buf @@ -910,22 +898,9 @@ fsl_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) req->ep = ep; - /* map virtual address to hardware */ - if (req->req.dma == DMA_ADDR_INVALID) { - req->req.dma = dma_map_single(ep->udc->gadget.dev.parent, - req->req.buf, - req->req.length, ep_is_in(ep) - ? DMA_TO_DEVICE - : DMA_FROM_DEVICE); - req->mapped = 1; - } else { - dma_sync_single_for_device(ep->udc->gadget.dev.parent, - req->req.dma, req->req.length, - ep_is_in(ep) - ? DMA_TO_DEVICE - : DMA_FROM_DEVICE); - req->mapped = 0; - } + ret = usb_gadget_map_request(&ep->udc->gadget, &req->req, ep_is_in(ep)); + if (ret) + return ret; req->req.status = -EINPROGRESS; req->req.actual = 0; @@ -1290,6 +1265,7 @@ static int ep0_prime_status(struct fsl_udc *udc, int direction) { struct fsl_req *req = udc->status_req; struct fsl_ep *ep; + int ret; if (direction == EP_DIR_IN) udc->ep0_dir = USB_DIR_IN; @@ -1307,10 +1283,9 @@ static int ep0_prime_status(struct fsl_udc *udc, int direction) req->req.complete = NULL; req->dtd_count = 0; - req->req.dma = dma_map_single(ep->udc->gadget.dev.parent, - req->req.buf, req->req.length, - ep_is_in(ep) ? DMA_TO_DEVICE : DMA_FROM_DEVICE); - req->mapped = 1; + ret = usb_gadget_map_request(&ep->udc->gadget, &req->req, ep_is_in(ep)); + if (ret) + return ret; if (fsl_req_to_dtd(req, GFP_ATOMIC) == 0) fsl_queue_td(ep, req); @@ -1353,6 +1328,7 @@ static void ch9getstatus(struct fsl_udc *udc, u8 request_type, u16 value, u16 tmp = 0; /* Status, cpu endian */ struct fsl_req *req; struct fsl_ep *ep; + int ret; ep = &udc->eps[0]; @@ -1390,10 +1366,9 @@ static void ch9getstatus(struct fsl_udc *udc, u8 request_type, u16 value, req->req.complete = NULL; req->dtd_count = 0; - req->req.dma = dma_map_single(ep->udc->gadget.dev.parent, - req->req.buf, req->req.length, - ep_is_in(ep) ? DMA_TO_DEVICE : DMA_FROM_DEVICE); - req->mapped = 1; + ret = usb_gadget_map_request(&ep->udc->gadget, &req->req, ep_is_in(ep)); + if (ret) + goto stall; /* prime the data phase */ if ((fsl_req_to_dtd(req, GFP_ATOMIC) == 0)) @@ -1964,7 +1939,6 @@ static int fsl_udc_start(struct usb_gadget *g, driver->driver.bus = NULL; /* hook up the driver */ udc_controller->driver = driver; - udc_controller->gadget.dev.driver = &driver->driver; spin_unlock_irqrestore(&udc_controller->lock, flags); if (!IS_ERR_OR_NULL(udc_controller->transceiver)) { @@ -1980,7 +1954,6 @@ static int fsl_udc_start(struct usb_gadget *g, if (retval < 0) { ERR("can't bind to transceiver\n"); driver->unbind(&udc_controller->gadget); - udc_controller->gadget.dev.driver = 0; udc_controller->driver = 0; return retval; } @@ -2023,7 +1996,6 @@ static int fsl_udc_stop(struct usb_gadget *g, nuke(loop_ep, -ESHUTDOWN); spin_unlock_irqrestore(&udc_controller->lock, flags); - udc_controller->gadget.dev.driver = NULL; udc_controller->driver = NULL; return 0; @@ -2521,12 +2493,7 @@ static int __init fsl_udc_probe(struct platform_device *pdev) /* Setup gadget.dev and register with kernel */ dev_set_name(&udc_controller->gadget.dev, "gadget"); - udc_controller->gadget.dev.release = fsl_udc_release; - udc_controller->gadget.dev.parent = &pdev->dev; udc_controller->gadget.dev.of_node = pdev->dev.of_node; - ret = device_register(&udc_controller->gadget.dev); - if (ret < 0) - goto err_free_irq; if (!IS_ERR_OR_NULL(udc_controller->transceiver)) udc_controller->gadget.is_otg = 1; @@ -2559,10 +2526,11 @@ static int __init fsl_udc_probe(struct platform_device *pdev) DTD_ALIGNMENT, UDC_DMA_BOUNDARY); if (udc_controller->td_pool == NULL) { ret = -ENOMEM; - goto err_unregister; + goto err_free_irq; } - ret = usb_add_gadget_udc(&pdev->dev, &udc_controller->gadget); + ret = usb_add_gadget_udc_release(&pdev->dev, &udc_controller->gadget, + fsl_udc_release); if (ret) goto err_del_udc; @@ -2571,8 +2539,6 @@ static int __init fsl_udc_probe(struct platform_device *pdev) err_del_udc: dma_pool_destroy(udc_controller->td_pool); -err_unregister: - device_unregister(&udc_controller->gadget.dev); err_free_irq: free_irq(udc_controller->irq, udc_controller); err_iounmap: @@ -2622,7 +2588,6 @@ static int __exit fsl_udc_remove(struct platform_device *pdev) if (pdata->operating_mode == FSL_USB2_DR_DEVICE) release_mem_region(res->start, resource_size(res)); - device_unregister(&udc_controller->gadget.dev); /* free udc --wait for the release() finished */ wait_for_completion(&done); @@ -2747,21 +2712,7 @@ static struct platform_driver udc_driver = { }, }; -static int __init udc_init(void) -{ - printk(KERN_INFO "%s (%s)\n", driver_desc, DRIVER_VERSION); - return platform_driver_probe(&udc_driver, fsl_udc_probe); -} - -module_init(udc_init); - -static void __exit udc_exit(void) -{ - platform_driver_unregister(&udc_driver); - printk(KERN_WARNING "%s unregistered\n", driver_desc); -} - -module_exit(udc_exit); +module_platform_driver_probe(udc_driver, fsl_udc_probe); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_AUTHOR(DRIVER_AUTHOR); diff --git a/drivers/usb/gadget/fusb300_udc.c b/drivers/usb/gadget/fusb300_udc.c index 066cb89376de..cec8871b77f9 100644 --- a/drivers/usb/gadget/fusb300_udc.c +++ b/drivers/usb/gadget/fusb300_udc.c @@ -394,7 +394,7 @@ static void fusb300_clear_epnstall(struct fusb300 *fusb300, u8 ep) if (reg & FUSB300_EPSET0_STL) { printk(KERN_DEBUG "EP%d stall... Clear!!\n", ep); - reg &= ~FUSB300_EPSET0_STL; + reg |= FUSB300_EPSET0_STL_CLR; iowrite32(reg, fusb300->reg + FUSB300_OFFSET_EPSET0(ep)); } } @@ -930,33 +930,33 @@ static void fusb300_wait_idma_finished(struct fusb300_ep *ep) fusb300_clear_int(ep->fusb300, FUSB300_OFFSET_IGR0, FUSB300_IGR0_EPn_PRD_INT(ep->epnum)); + return; + IDMA_RESET: - fusb300_clear_int(ep->fusb300, FUSB300_OFFSET_IGER0, - FUSB300_IGER0_EEPn_PRD_INT(ep->epnum)); + reg = ioread32(ep->fusb300->reg + FUSB300_OFFSET_IGER0); + reg &= ~FUSB300_IGER0_EEPn_PRD_INT(ep->epnum); + iowrite32(reg, ep->fusb300->reg + FUSB300_OFFSET_IGER0); } -static void fusb300_set_idma(struct fusb300_ep *ep, +static void fusb300_set_idma(struct fusb300_ep *ep, struct fusb300_request *req) { - dma_addr_t d; - - d = dma_map_single(NULL, req->req.buf, req->req.length, DMA_TO_DEVICE); + int ret; - if (dma_mapping_error(NULL, d)) { - printk(KERN_DEBUG "dma_mapping_error\n"); + ret = usb_gadget_map_request(&ep->fusb300->gadget, + &req->req, DMA_TO_DEVICE); + if (ret) return; - } - - dma_sync_single_for_device(NULL, d, req->req.length, DMA_TO_DEVICE); fusb300_enable_bit(ep->fusb300, FUSB300_OFFSET_IGER0, FUSB300_IGER0_EEPn_PRD_INT(ep->epnum)); - fusb300_fill_idma_prdtbl(ep, d, req->req.length); + fusb300_fill_idma_prdtbl(ep, req->req.dma, req->req.length); /* check idma is done */ fusb300_wait_idma_finished(ep); - dma_unmap_single(NULL, d, req->req.length, DMA_TO_DEVICE); + usb_gadget_unmap_request(&ep->fusb300->gadget, + &req->req, DMA_TO_DEVICE); } static void in_ep_fifo_handler(struct fusb300_ep *ep) @@ -1316,7 +1316,6 @@ static int fusb300_udc_start(struct usb_gadget *g, /* hook up the driver */ driver->driver.bus = NULL; fusb300->driver = driver; - fusb300->gadget.dev.driver = &driver->driver; return 0; } @@ -1327,7 +1326,6 @@ static int fusb300_udc_stop(struct usb_gadget *g, struct fusb300 *fusb300 = to_fusb300(g); driver->unbind(&fusb300->gadget); - fusb300->gadget.dev.driver = NULL; init_controller(fusb300); fusb300->driver = NULL; @@ -1422,14 +1420,7 @@ static int __init fusb300_probe(struct platform_device *pdev) fusb300->gadget.ops = &fusb300_gadget_ops; - device_initialize(&fusb300->gadget.dev); - - dev_set_name(&fusb300->gadget.dev, "gadget"); - fusb300->gadget.max_speed = USB_SPEED_HIGH; - fusb300->gadget.dev.parent = &pdev->dev; - fusb300->gadget.dev.dma_mask = pdev->dev.dma_mask; - fusb300->gadget.dev.release = pdev->dev.release; fusb300->gadget.name = udc_name; fusb300->reg = reg; @@ -1478,19 +1469,10 @@ static int __init fusb300_probe(struct platform_device *pdev) if (ret) goto err_add_udc; - ret = device_add(&fusb300->gadget.dev); - if (ret) { - pr_err("device_add error (%d)\n", ret); - goto err_add_device; - } - dev_info(&pdev->dev, "version %s\n", DRIVER_VERSION); return 0; -err_add_device: - usb_del_gadget_udc(&fusb300->gadget); - err_add_udc: fusb300_free_request(&fusb300->ep[0]->ep, fusb300->ep0_req); diff --git a/drivers/usb/gadget/fusb300_udc.h b/drivers/usb/gadget/fusb300_udc.h index 6ba444ae8dd5..ae811d8d38b4 100644 --- a/drivers/usb/gadget/fusb300_udc.h +++ b/drivers/usb/gadget/fusb300_udc.h @@ -111,8 +111,8 @@ /* * * EPn Setting 0 (EPn_SET0, offset = 020H+(n-1)*30H, n=1~15 ) * */ +#define FUSB300_EPSET0_STL_CLR (1 << 3) #define FUSB300_EPSET0_CLRSEQNUM (1 << 2) -#define FUSB300_EPSET0_EPn_TX0BYTE (1 << 1) #define FUSB300_EPSET0_STL (1 << 0) /* diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c index 3b343b23e4b0..787a78e92aa2 100644 --- a/drivers/usb/gadget/g_ffs.c +++ b/drivers/usb/gadget/g_ffs.c @@ -13,7 +13,6 @@ #define pr_fmt(fmt) "g_ffs: " fmt #include <linux/module.h> - /* * kbuild is not very cooperative with respect to linking separately * compiled library objects into one module. So for now we won't use @@ -38,13 +37,16 @@ # include "u_ether.c" static u8 gfs_hostaddr[ETH_ALEN]; +static struct eth_dev *the_dev; # ifdef CONFIG_USB_FUNCTIONFS_ETH -static int eth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]); +static int eth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], + struct eth_dev *dev); # endif #else -# define gether_cleanup() do { } while (0) -# define gether_setup(gadget, hostaddr) ((int)0) +# define the_dev NULL +# define gether_cleanup(dev) do { } while (0) # define gfs_hostaddr NULL +struct eth_dev; #endif #include "f_fs.c" @@ -137,7 +139,8 @@ static struct usb_gadget_strings *gfs_dev_strings[] = { struct gfs_configuration { struct usb_configuration c; - int (*eth)(struct usb_configuration *c, u8 *ethaddr); + int (*eth)(struct usb_configuration *c, u8 *ethaddr, + struct eth_dev *dev); } gfs_configurations[] = { #ifdef CONFIG_USB_FUNCTIONFS_RNDIS { @@ -346,10 +349,13 @@ static int gfs_bind(struct usb_composite_dev *cdev) if (missing_funcs) return -ENODEV; - - ret = gether_setup(cdev->gadget, gfs_hostaddr); - if (unlikely(ret < 0)) +#if defined CONFIG_USB_FUNCTIONFS_ETH || defined CONFIG_USB_FUNCTIONFS_RNDIS + the_dev = gether_setup(cdev->gadget, gfs_hostaddr); +#endif + if (IS_ERR(the_dev)) { + ret = PTR_ERR(the_dev); goto error_quick; + } gfs_ether_setup = true; ret = usb_string_ids_tab(cdev, gfs_strings); @@ -386,7 +392,7 @@ error_unbind: for (i = 0; i < func_num; i++) functionfs_unbind(ffs_tab[i].ffs_data); error: - gether_cleanup(); + gether_cleanup(the_dev); error_quick: gfs_ether_setup = false; return ret; @@ -410,7 +416,7 @@ static int gfs_unbind(struct usb_composite_dev *cdev) * do...? */ if (gfs_ether_setup) - gether_cleanup(); + gether_cleanup(the_dev); gfs_ether_setup = false; for (i = func_num; i--; ) @@ -440,7 +446,7 @@ static int gfs_do_config(struct usb_configuration *c) } if (gc->eth) { - ret = gc->eth(c, gfs_hostaddr); + ret = gc->eth(c, gfs_hostaddr, the_dev); if (unlikely(ret < 0)) return ret; } @@ -469,11 +475,12 @@ static int gfs_do_config(struct usb_configuration *c) #ifdef CONFIG_USB_FUNCTIONFS_ETH -static int eth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]) +static int eth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], + struct eth_dev *dev) { return can_support_ecm(c->cdev->gadget) - ? ecm_bind_config(c, ethaddr) - : geth_bind_config(c, ethaddr); + ? ecm_bind_config(c, ethaddr, dev) + : geth_bind_config(c, ethaddr, dev); } #endif diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c index 85742d4c67df..991aba390d9d 100644 --- a/drivers/usb/gadget/goku_udc.c +++ b/drivers/usb/gadget/goku_udc.c @@ -51,8 +51,6 @@ #define DRIVER_DESC "TC86C001 USB Device Controller" #define DRIVER_VERSION "30-Oct 2003" -#define DMA_ADDR_INVALID (~(dma_addr_t)0) - static const char driver_name [] = "goku_udc"; static const char driver_desc [] = DRIVER_DESC; @@ -275,7 +273,6 @@ goku_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags) if (!req) return NULL; - req->req.dma = DMA_ADDR_INVALID; INIT_LIST_HEAD(&req->queue); return &req->req; } @@ -1354,7 +1351,6 @@ static int goku_udc_start(struct usb_gadget *g, /* hook up the driver */ driver->driver.bus = NULL; dev->driver = driver; - dev->gadget.dev.driver = &driver->driver; /* * then enable host detection and ep0; and we're ready @@ -1394,7 +1390,6 @@ static int goku_udc_stop(struct usb_gadget *g, dev->driver = NULL; stop_activity(dev, driver); spin_unlock_irqrestore(&dev->lock, flags); - dev->gadget.dev.driver = NULL; return 0; } @@ -1716,8 +1711,6 @@ static void goku_remove(struct pci_dev *pdev) pci_resource_len (pdev, 0)); if (dev->enabled) pci_disable_device(pdev); - if (dev->registered) - device_unregister(&dev->gadget.dev); pci_set_drvdata(pdev, NULL); dev->regs = NULL; @@ -1756,10 +1749,6 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id) dev->gadget.max_speed = USB_SPEED_FULL; /* the "gadget" abstracts/virtualizes the controller */ - dev_set_name(&dev->gadget.dev, "gadget"); - dev->gadget.dev.parent = &pdev->dev; - dev->gadget.dev.dma_mask = pdev->dev.dma_mask; - dev->gadget.dev.release = gadget_release; dev->gadget.name = driver_name; /* now all the pci goodies ... */ @@ -1810,13 +1799,8 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id) create_proc_read_entry(proc_node_name, 0, NULL, udc_proc_read, dev); #endif - retval = device_register(&dev->gadget.dev); - if (retval) { - put_device(&dev->gadget.dev); - goto err; - } - dev->registered = 1; - retval = usb_add_gadget_udc(&pdev->dev, &dev->gadget); + retval = usb_add_gadget_udc_release(&pdev->dev, &dev->gadget, + gadget_release); if (retval) goto err; diff --git a/drivers/usb/gadget/goku_udc.h b/drivers/usb/gadget/goku_udc.h index b4470d2b1d86..86d2adafe149 100644 --- a/drivers/usb/gadget/goku_udc.h +++ b/drivers/usb/gadget/goku_udc.h @@ -250,8 +250,7 @@ struct goku_udc { got_region:1, req_config:1, configured:1, - enabled:1, - registered:1; + enabled:1; /* pci state used to access those endpoints */ struct pci_dev *pdev; diff --git a/drivers/usb/gadget/imx_udc.c b/drivers/usb/gadget/imx_udc.c index 5bd930d779b9..b5cebd6b0d7a 100644 --- a/drivers/usb/gadget/imx_udc.c +++ b/drivers/usb/gadget/imx_udc.c @@ -1338,7 +1338,6 @@ static int imx_udc_start(struct usb_gadget *gadget, imx_usb = container_of(gadget, struct imx_udc_struct, gadget); /* first hook up the driver ... */ imx_usb->driver = driver; - imx_usb->gadget.dev.driver = &driver->driver; D_INI(imx_usb->dev, "<%s> registered gadget driver '%s'\n", __func__, driver->driver.name); @@ -1358,7 +1357,6 @@ static int imx_udc_stop(struct usb_gadget *gadget, imx_udc_disable(imx_usb); del_timer(&imx_usb->timer); - imx_usb->gadget.dev.driver = NULL; imx_usb->driver = NULL; D_INI(imx_usb->dev, "<%s> unregistered gadget driver '%s'\n", @@ -1461,15 +1459,6 @@ static int __init imx_udc_probe(struct platform_device *pdev) imx_usb->clk = clk; imx_usb->dev = &pdev->dev; - device_initialize(&imx_usb->gadget.dev); - - imx_usb->gadget.dev.parent = &pdev->dev; - imx_usb->gadget.dev.dma_mask = pdev->dev.dma_mask; - - ret = device_add(&imx_usb->gadget.dev); - if (retval) - goto fail4; - platform_set_drvdata(pdev, imx_usb); usb_init_data(imx_usb); @@ -1481,11 +1470,9 @@ static int __init imx_udc_probe(struct platform_device *pdev) ret = usb_add_gadget_udc(&pdev->dev, &imx_usb->gadget); if (ret) - goto fail5; + goto fail4; return 0; -fail5: - device_unregister(&imx_usb->gadget.dev); fail4: for (i = 0; i < IMX_USB_NB_EP + 1; i++) free_irq(imx_usb->usbd_int[i], imx_usb); @@ -1509,7 +1496,6 @@ static int __exit imx_udc_remove(struct platform_device *pdev) int i; usb_del_gadget_udc(&imx_usb->gadget); - device_unregister(&imx_usb->gadget.dev); imx_udc_disable(imx_usb); del_timer(&imx_usb->timer); diff --git a/drivers/usb/gadget/lpc32xx_udc.c b/drivers/usb/gadget/lpc32xx_udc.c index aa04089d6899..b943d8cdfbf7 100644 --- a/drivers/usb/gadget/lpc32xx_udc.c +++ b/drivers/usb/gadget/lpc32xx_udc.c @@ -1469,23 +1469,7 @@ static void done(struct lpc32xx_ep *ep, struct lpc32xx_request *req, int status) status = req->req.status; if (ep->lep) { - enum dma_data_direction direction; - - if (ep->is_in) - direction = DMA_TO_DEVICE; - else - direction = DMA_FROM_DEVICE; - - if (req->mapped) { - dma_unmap_single(ep->udc->gadget.dev.parent, - req->req.dma, req->req.length, - direction); - req->req.dma = 0; - req->mapped = 0; - } else - dma_sync_single_for_cpu(ep->udc->gadget.dev.parent, - req->req.dma, req->req.length, - direction); + usb_gadget_unmap_request(&udc->gadget, &req->req, ep->is_in); /* Free DDs */ udc_dd_free(udc, req->dd_desc_ptr); @@ -1841,26 +1825,11 @@ static int lpc32xx_ep_queue(struct usb_ep *_ep, } if (ep->lep) { - enum dma_data_direction direction; struct lpc32xx_usbd_dd_gad *dd; - /* Map DMA pointer */ - if (ep->is_in) - direction = DMA_TO_DEVICE; - else - direction = DMA_FROM_DEVICE; - - if (req->req.dma == 0) { - req->req.dma = dma_map_single( - ep->udc->gadget.dev.parent, - req->req.buf, req->req.length, direction); - req->mapped = 1; - } else { - dma_sync_single_for_device( - ep->udc->gadget.dev.parent, req->req.dma, - req->req.length, direction); - req->mapped = 0; - } + status = usb_gadget_map_request(&udc->gadget, _req, ep->is_in); + if (status) + return status; /* For the request, build a list of DDs */ dd = udc_dd_alloc(udc); @@ -2977,7 +2946,6 @@ static int lpc32xx_start(struct usb_gadget *gadget, } udc->driver = driver; - udc->gadget.dev.driver = &driver->driver; udc->gadget.dev.of_node = udc->dev->of_node; udc->enabled = 1; udc->selfpowered = 1; @@ -3026,7 +2994,6 @@ static int lpc32xx_stop(struct usb_gadget *gadget, } udc->enabled = 0; - udc->gadget.dev.driver = NULL; udc->driver = NULL; return 0; @@ -3248,12 +3215,6 @@ static int __init lpc32xx_udc_probe(struct platform_device *pdev) udc_disable(udc); udc_reinit(udc); - retval = device_register(&udc->gadget.dev); - if (retval < 0) { - dev_err(udc->dev, "Device registration failure\n"); - goto dev_register_fail; - } - /* Request IRQs - low and high priority USB device IRQs are routed to * the same handler, while the DMA interrupt is routed elsewhere */ retval = request_irq(udc->udp_irq[IRQ_USB_LP], lpc32xx_usb_lp_irq, @@ -3320,8 +3281,6 @@ irq_dev_fail: irq_hp_fail: free_irq(udc->udp_irq[IRQ_USB_LP], udc); irq_lp_fail: - device_unregister(&udc->gadget.dev); -dev_register_fail: dma_pool_destroy(udc->dd_cache); dma_alloc_fail: dma_free_coherent(&pdev->dev, UDCA_BUFF_SIZE, @@ -3376,8 +3335,6 @@ static int lpc32xx_udc_remove(struct platform_device *pdev) free_irq(udc->udp_irq[IRQ_USB_HP], udc); free_irq(udc->udp_irq[IRQ_USB_LP], udc); - device_unregister(&udc->gadget.dev); - clk_disable(udc->usb_otg_clk); clk_put(udc->usb_otg_clk); clk_disable(udc->usb_slv_clk); diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c index c1b8c2dd808d..866ef0999247 100644 --- a/drivers/usb/gadget/m66592-udc.c +++ b/drivers/usb/gadget/m66592-udc.c @@ -1471,7 +1471,6 @@ static int m66592_udc_start(struct usb_gadget *g, /* hook up the driver */ driver->driver.bus = NULL; m66592->driver = driver; - m66592->gadget.dev.driver = &driver->driver; m66592_bset(m66592, M66592_VBSE | M66592_URST, M66592_INTENB0); if (m66592_read(m66592, M66592_INTSTS0) & M66592_VBSTS) { @@ -1494,7 +1493,6 @@ static int m66592_udc_stop(struct usb_gadget *g, m66592_bclr(m66592, M66592_VBSE | M66592_URST, M66592_INTENB0); driver->unbind(&m66592->gadget); - m66592->gadget.dev.driver = NULL; init_controller(m66592); disable_controller(m66592); @@ -1538,7 +1536,6 @@ static int __exit m66592_remove(struct platform_device *pdev) struct m66592 *m66592 = dev_get_drvdata(&pdev->dev); usb_del_gadget_udc(&m66592->gadget); - device_del(&m66592->gadget.dev); del_timer_sync(&m66592->timer); iounmap(m66592->reg); @@ -1608,12 +1605,7 @@ static int __init m66592_probe(struct platform_device *pdev) dev_set_drvdata(&pdev->dev, m66592); m66592->gadget.ops = &m66592_gadget_ops; - device_initialize(&m66592->gadget.dev); - dev_set_name(&m66592->gadget.dev, "gadget"); m66592->gadget.max_speed = USB_SPEED_HIGH; - m66592->gadget.dev.parent = &pdev->dev; - m66592->gadget.dev.dma_mask = pdev->dev.dma_mask; - m66592->gadget.dev.release = pdev->dev.release; m66592->gadget.name = udc_name; init_timer(&m66592->timer); @@ -1674,12 +1666,6 @@ static int __init m66592_probe(struct platform_device *pdev) init_controller(m66592); - ret = device_add(&m66592->gadget.dev); - if (ret) { - pr_err("device_add error (%d)\n", ret); - goto err_device_add; - } - ret = usb_add_gadget_udc(&pdev->dev, &m66592->gadget); if (ret) goto err_add_udc; @@ -1688,9 +1674,6 @@ static int __init m66592_probe(struct platform_device *pdev) return 0; err_add_udc: - device_del(&m66592->gadget.dev); - -err_device_add: m66592_free_request(&m66592->ep[0].ep, m66592->ep0_req); clean_up3: diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c index 20bbbf917fc2..a74ebefc7682 100644 --- a/drivers/usb/gadget/multi.c +++ b/drivers/usb/gadget/multi.c @@ -135,8 +135,8 @@ static struct fsg_common fsg_common; static u8 hostaddr[ETH_ALEN]; -static unsigned char tty_line; static struct usb_function_instance *fi_acm; +static struct eth_dev *the_dev; /********** RNDIS **********/ @@ -152,7 +152,7 @@ static __init int rndis_do_config(struct usb_configuration *c) c->bmAttributes |= USB_CONFIG_ATT_WAKEUP; } - ret = rndis_bind_config(c, hostaddr); + ret = rndis_bind_config(c, hostaddr, the_dev); if (ret < 0) return ret; @@ -214,7 +214,7 @@ static __init int cdc_do_config(struct usb_configuration *c) c->bmAttributes |= USB_CONFIG_ATT_WAKEUP; } - ret = ecm_bind_config(c, hostaddr); + ret = ecm_bind_config(c, hostaddr, the_dev); if (ret < 0) return ret; @@ -269,7 +269,6 @@ static int cdc_config_register(struct usb_composite_dev *cdev) static int __ref multi_bind(struct usb_composite_dev *cdev) { struct usb_gadget *gadget = cdev->gadget; - struct f_serial_opts *opts; int status; if (!can_support_ecm(cdev->gadget)) { @@ -279,24 +278,17 @@ static int __ref multi_bind(struct usb_composite_dev *cdev) } /* set up network link layer */ - status = gether_setup(cdev->gadget, hostaddr); - if (status < 0) - return status; + the_dev = gether_setup(cdev->gadget, hostaddr); + if (IS_ERR(the_dev)) + return PTR_ERR(the_dev); /* set up serial link layer */ - status = gserial_alloc_line(&tty_line); - if (status < 0) - goto fail0; - fi_acm = usb_get_function_instance("acm"); if (IS_ERR(fi_acm)) { status = PTR_ERR(fi_acm); - goto fail0dot5; + goto fail0; } - opts = container_of(fi_acm, struct f_serial_opts, func_inst); - opts->port_num = tty_line; - /* set up mass storage function */ { void *retp; @@ -334,10 +326,8 @@ fail2: fsg_common_put(&fsg_common); fail1: usb_put_function_instance(fi_acm); -fail0dot5: - gserial_free_line(tty_line); fail0: - gether_cleanup(); + gether_cleanup(the_dev); return status; } @@ -350,8 +340,7 @@ static int __exit multi_unbind(struct usb_composite_dev *cdev) usb_put_function(f_acm_rndis); #endif usb_put_function_instance(fi_acm); - gserial_free_line(tty_line); - gether_cleanup(); + gether_cleanup(the_dev); return 0; } diff --git a/drivers/usb/gadget/mv_u3d_core.c b/drivers/usb/gadget/mv_u3d_core.c index b5cea273c957..58288e9cf728 100644 --- a/drivers/usb/gadget/mv_u3d_core.c +++ b/drivers/usb/gadget/mv_u3d_core.c @@ -30,9 +30,6 @@ #include <linux/platform_device.h> #include <linux/platform_data/mv_usb.h> #include <linux/clk.h> -#include <asm/system.h> -#include <asm/unaligned.h> -#include <asm/byteorder.h> #include "mv_u3d.h" @@ -125,7 +122,7 @@ static int mv_u3d_process_ep_req(struct mv_u3d *u3d, int index, struct mv_u3d_trb *curr_trb; dma_addr_t cur_deq_lo; struct mv_u3d_ep_context *curr_ep_context; - int trb_complete, actual, remaining_length; + int trb_complete, actual, remaining_length = 0; int direction, ep_num; int retval = 0; u32 tmp, status, length; @@ -189,6 +186,8 @@ static int mv_u3d_process_ep_req(struct mv_u3d *u3d, int index, */ static void mv_u3d_done(struct mv_u3d_ep *ep, struct mv_u3d_req *req, int status) + __releases(&ep->udc->lock) + __acquires(&ep->udc->lock) { struct mv_u3d *u3d = (struct mv_u3d *)ep->u3d; @@ -812,19 +811,19 @@ mv_u3d_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) return 0; } - dev_dbg(u3d->dev, "%s: %s, req: 0x%x\n", - __func__, _ep->name, (u32)req); + dev_dbg(u3d->dev, "%s: %s, req: 0x%p\n", + __func__, _ep->name, req); /* catch various bogus parameters */ if (!req->req.complete || !req->req.buf || !list_empty(&req->queue)) { dev_err(u3d->dev, - "%s, bad params, _req: 0x%x," - "req->req.complete: 0x%x, req->req.buf: 0x%x," + "%s, bad params, _req: 0x%p," + "req->req.complete: 0x%p, req->req.buf: 0x%p," "list_empty: 0x%x\n", - __func__, (u32)_req, - (u32)req->req.complete, (u32)req->req.buf, - (u32)list_empty(&req->queue)); + __func__, _req, + req->req.complete, req->req.buf, + list_empty(&req->queue)); return -EINVAL; } if (unlikely(!ep->ep.desc)) { @@ -905,7 +904,7 @@ static int mv_u3d_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req) struct mv_u3d_req, queue); /* Point first TRB of next request to the EP context. */ - iowrite32((u32) next_req->trb_head, + iowrite32((unsigned long) next_req->trb_head, &ep_context->trb_addr_lo); } else { struct mv_u3d_ep_context *ep_context; @@ -1264,7 +1263,6 @@ static int mv_u3d_start(struct usb_gadget *g, /* hook up the driver ... */ driver->driver.bus = NULL; u3d->driver = driver; - u3d->gadget.dev.driver = &driver->driver; u3d->ep0_dir = USB_DIR_OUT; @@ -1302,7 +1300,6 @@ static int mv_u3d_stop(struct usb_gadget *g, spin_unlock_irqrestore(&u3d->lock, flags); - u3d->gadget.dev.driver = NULL; u3d->driver = NULL; return 0; @@ -1525,6 +1522,8 @@ static int mv_u3d_is_set_configuration(struct usb_ctrlrequest *setup) static void mv_u3d_handle_setup_packet(struct mv_u3d *u3d, u8 ep_num, struct usb_ctrlrequest *setup) + __releases(&u3c->lock) + __acquires(&u3c->lock) { bool delegate = false; @@ -1758,11 +1757,6 @@ static irqreturn_t mv_u3d_irq(int irq, void *dev) return IRQ_HANDLED; } -static void mv_u3d_gadget_release(struct device *dev) -{ - dev_dbg(dev, "%s\n", __func__); -} - static int mv_u3d_remove(struct platform_device *dev) { struct mv_u3d *u3d = platform_get_drvdata(dev); @@ -1792,8 +1786,6 @@ static int mv_u3d_remove(struct platform_device *dev) clk_put(u3d->clk); - device_unregister(&u3d->gadget.dev); - platform_set_drvdata(dev, NULL); kfree(u3d); @@ -1829,7 +1821,7 @@ static int mv_u3d_probe(struct platform_device *dev) u3d->dev = &dev->dev; u3d->vbus = pdata->vbus; - u3d->clk = clk_get(&dev->dev, pdata->clkname[0]); + u3d->clk = clk_get(&dev->dev, NULL); if (IS_ERR(u3d->clk)) { retval = PTR_ERR(u3d->clk); goto err_get_clk; @@ -1849,8 +1841,9 @@ static int mv_u3d_probe(struct platform_device *dev) retval = -EBUSY; goto err_map_cap_regs; } else { - dev_dbg(&dev->dev, "cap_regs address: 0x%x/0x%x\n", - (unsigned int)r->start, (unsigned int)u3d->cap_regs); + dev_dbg(&dev->dev, "cap_regs address: 0x%lx/0x%lx\n", + (unsigned long) r->start, + (unsigned long) u3d->cap_regs); } /* we will access controller register, so enable the u3d controller */ @@ -1864,10 +1857,10 @@ static int mv_u3d_probe(struct platform_device *dev) } } - u3d->op_regs = (struct mv_u3d_op_regs __iomem *)((u32)u3d->cap_regs + u3d->op_regs = (struct mv_u3d_op_regs __iomem *)(u3d->cap_regs + MV_U3D_USB3_OP_REGS_OFFSET); - u3d->vuc_regs = (struct mv_u3d_vuc_regs __iomem *)((u32)u3d->cap_regs + u3d->vuc_regs = (struct mv_u3d_vuc_regs __iomem *)(u3d->cap_regs + ioread32(&u3d->cap_regs->vuoff)); u3d->max_eps = 16; @@ -1957,16 +1950,8 @@ static int mv_u3d_probe(struct platform_device *dev) u3d->gadget.speed = USB_SPEED_UNKNOWN; /* speed */ /* the "gadget" abstracts/virtualizes the controller */ - dev_set_name(&u3d->gadget.dev, "gadget"); - u3d->gadget.dev.parent = &dev->dev; - u3d->gadget.dev.dma_mask = dev->dev.dma_mask; - u3d->gadget.dev.release = mv_u3d_gadget_release; u3d->gadget.name = driver_name; /* gadget name */ - retval = device_register(&u3d->gadget.dev); - if (retval) - goto err_register_gadget_device; - mv_u3d_eps_init(u3d); /* external vbus detection */ @@ -1991,8 +1976,6 @@ static int mv_u3d_probe(struct platform_device *dev) return 0; err_unregister: - device_unregister(&u3d->gadget.dev); -err_register_gadget_device: free_irq(u3d->irq, &dev->dev); err_request_irq: err_get_irq: @@ -2021,7 +2004,7 @@ err_pdata: return retval; } -#ifdef CONFIG_PM +#ifdef CONFIG_PM_SLEEP static int mv_u3d_suspend(struct device *dev) { struct mv_u3d *u3d = dev_get_drvdata(dev); @@ -2064,10 +2047,10 @@ static int mv_u3d_resume(struct device *dev) return 0; } - -SIMPLE_DEV_PM_OPS(mv_u3d_pm_ops, mv_u3d_suspend, mv_u3d_resume); #endif +static SIMPLE_DEV_PM_OPS(mv_u3d_pm_ops, mv_u3d_suspend, mv_u3d_resume); + static void mv_u3d_shutdown(struct platform_device *dev) { struct mv_u3d *u3d = dev_get_drvdata(&dev->dev); @@ -2080,14 +2063,12 @@ static void mv_u3d_shutdown(struct platform_device *dev) static struct platform_driver mv_u3d_driver = { .probe = mv_u3d_probe, - .remove = __exit_p(mv_u3d_remove), + .remove = mv_u3d_remove, .shutdown = mv_u3d_shutdown, .driver = { .owner = THIS_MODULE, .name = "mv-u3d", -#ifdef CONFIG_PM .pm = &mv_u3d_pm_ops, -#endif }, }; diff --git a/drivers/usb/gadget/mv_udc.h b/drivers/usb/gadget/mv_udc.h index 9073436d8b24..be77f207dbaf 100644 --- a/drivers/usb/gadget/mv_udc.h +++ b/drivers/usb/gadget/mv_udc.h @@ -222,8 +222,7 @@ struct mv_udc { struct mv_usb_platform_data *pdata; /* some SOC has mutiple clock sources for USB*/ - unsigned int clknum; - struct clk *clk[0]; + struct clk *clk; }; /* endpoint data structure */ diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c index c8cf959057fe..c2a57023e467 100644 --- a/drivers/usb/gadget/mv_udc_core.c +++ b/drivers/usb/gadget/mv_udc_core.c @@ -212,6 +212,8 @@ static int process_ep_req(struct mv_udc *udc, int index, * request is still in progress. */ static void done(struct mv_ep *ep, struct mv_req *req, int status) + __releases(&ep->udc->lock) + __acquires(&ep->udc->lock) { struct mv_udc *udc = NULL; unsigned char stopped = ep->stopped; @@ -237,18 +239,7 @@ static void done(struct mv_ep *ep, struct mv_req *req, int status) dma_pool_free(udc->dtd_pool, curr_td, curr_td->td_dma); } - if (req->mapped) { - dma_unmap_single(ep->udc->gadget.dev.parent, - req->req.dma, req->req.length, - ((ep_dir(ep) == EP_DIR_IN) ? - DMA_TO_DEVICE : DMA_FROM_DEVICE)); - req->req.dma = DMA_ADDR_INVALID; - req->mapped = 0; - } else - dma_sync_single_for_cpu(ep->udc->gadget.dev.parent, - req->req.dma, req->req.length, - ((ep_dir(ep) == EP_DIR_IN) ? - DMA_TO_DEVICE : DMA_FROM_DEVICE)); + usb_gadget_unmap_request(&udc->gadget, &req->req, ep_dir(ep)); if (status && (status != -ESHUTDOWN)) dev_info(&udc->dev->dev, "complete %s req %p stat %d len %u/%u", @@ -732,21 +723,9 @@ mv_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) req->ep = ep; /* map virtual address to hardware */ - if (req->req.dma == DMA_ADDR_INVALID) { - req->req.dma = dma_map_single(ep->udc->gadget.dev.parent, - req->req.buf, - req->req.length, ep_dir(ep) - ? DMA_TO_DEVICE - : DMA_FROM_DEVICE); - req->mapped = 1; - } else { - dma_sync_single_for_device(ep->udc->gadget.dev.parent, - req->req.dma, req->req.length, - ep_dir(ep) - ? DMA_TO_DEVICE - : DMA_FROM_DEVICE); - req->mapped = 0; - } + retval = usb_gadget_map_request(&udc->gadget, _req, ep_dir(ep)); + if (retval) + return retval; req->req.status = -EINPROGRESS; req->req.actual = 0; @@ -780,18 +759,7 @@ mv_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) return 0; err_unmap_dma: - if (req->mapped) { - dma_unmap_single(ep->udc->gadget.dev.parent, - req->req.dma, req->req.length, - ((ep_dir(ep) == EP_DIR_IN) ? - DMA_TO_DEVICE : DMA_FROM_DEVICE)); - req->req.dma = DMA_ADDR_INVALID; - req->mapped = 0; - } else - dma_sync_single_for_cpu(ep->udc->gadget.dev.parent, - req->req.dma, req->req.length, - ((ep_dir(ep) == EP_DIR_IN) ? - DMA_TO_DEVICE : DMA_FROM_DEVICE)); + usb_gadget_unmap_request(&udc->gadget, _req, ep_dir(ep)); return retval; } @@ -1006,18 +974,12 @@ static struct usb_ep_ops mv_ep_ops = { static void udc_clock_enable(struct mv_udc *udc) { - unsigned int i; - - for (i = 0; i < udc->clknum; i++) - clk_prepare_enable(udc->clk[i]); + clk_prepare_enable(udc->clk); } static void udc_clock_disable(struct mv_udc *udc) { - unsigned int i; - - for (i = 0; i < udc->clknum; i++) - clk_disable_unprepare(udc->clk[i]); + clk_disable_unprepare(udc->clk); } static void udc_stop(struct mv_udc *udc) @@ -1386,7 +1348,6 @@ static int mv_udc_start(struct usb_gadget *gadget, /* hook up the driver ... */ driver->driver.bus = NULL; udc->driver = driver; - udc->gadget.dev.driver = &driver->driver; udc->usb_state = USB_STATE_ATTACHED; udc->ep0_state = WAIT_FOR_SETUP; @@ -1401,7 +1362,6 @@ static int mv_udc_start(struct usb_gadget *gadget, dev_err(&udc->dev->dev, "unable to register peripheral to otg\n"); udc->driver = NULL; - udc->gadget.dev.driver = NULL; return retval; } } @@ -1437,7 +1397,6 @@ static int mv_udc_stop(struct usb_gadget *gadget, spin_unlock_irqrestore(&udc->lock, flags); /* unbind gadget driver */ - udc->gadget.dev.driver = NULL; udc->driver = NULL; return 0; @@ -1528,14 +1487,7 @@ udc_prime_status(struct mv_udc *udc, u8 direction, u16 status, bool empty) return 0; out: - if (req->mapped) { - dma_unmap_single(ep->udc->gadget.dev.parent, - req->req.dma, req->req.length, - ((ep_dir(ep) == EP_DIR_IN) ? - DMA_TO_DEVICE : DMA_FROM_DEVICE)); - req->req.dma = DMA_ADDR_INVALID; - req->mapped = 0; - } + usb_gadget_unmap_request(&udc->gadget, &req->req, ep_dir(ep)); return retval; } @@ -1695,6 +1647,8 @@ out: static void handle_setup_packet(struct mv_udc *udc, u8 ep_num, struct usb_ctrlrequest *setup) + __releases(&ep->udc->lock) + __acquires(&ep->udc->lock) { bool delegate = false; @@ -1891,7 +1845,7 @@ static void irq_process_tr_complete(struct mv_udc *udc) } } -void irq_process_reset(struct mv_udc *udc) +static void irq_process_reset(struct mv_udc *udc) { u32 tmp; unsigned int loops; @@ -2138,8 +2092,6 @@ static int mv_udc_remove(struct platform_device *pdev) mv_udc_disable(udc); - device_unregister(&udc->gadget.dev); - /* free dev, wait for the release() finished */ wait_for_completion(udc->done); @@ -2151,7 +2103,6 @@ static int mv_udc_probe(struct platform_device *pdev) struct mv_usb_platform_data *pdata = pdev->dev.platform_data; struct mv_udc *udc; int retval = 0; - int clk_i = 0; struct resource *r; size_t size; @@ -2160,8 +2111,7 @@ static int mv_udc_probe(struct platform_device *pdev) return -ENODEV; } - size = sizeof(*udc) + sizeof(struct clk *) * pdata->clknum; - udc = devm_kzalloc(&pdev->dev, size, GFP_KERNEL); + udc = devm_kzalloc(&pdev->dev, sizeof(*udc), GFP_KERNEL); if (udc == NULL) { dev_err(&pdev->dev, "failed to allocate memory for udc\n"); return -ENOMEM; @@ -2173,26 +2123,24 @@ static int mv_udc_probe(struct platform_device *pdev) udc->dev = pdev; -#ifdef CONFIG_USB_OTG_UTILS if (pdata->mode == MV_USB_MODE_OTG) { udc->transceiver = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2); - if (IS_ERR_OR_NULL(udc->transceiver)) { + if (IS_ERR(udc->transceiver)) { + retval = PTR_ERR(udc->transceiver); + + if (retval == -ENXIO) + return retval; + udc->transceiver = NULL; - return -ENODEV; + return -EPROBE_DEFER; } } -#endif - udc->clknum = pdata->clknum; - for (clk_i = 0; clk_i < udc->clknum; clk_i++) { - udc->clk[clk_i] = devm_clk_get(&pdev->dev, - pdata->clkname[clk_i]); - if (IS_ERR(udc->clk[clk_i])) { - retval = PTR_ERR(udc->clk[clk_i]); - return retval; - } - } + /* udc only have one sysclk. */ + udc->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(udc->clk)) + return PTR_ERR(udc->clk); r = platform_get_resource_byname(udc->dev, IORESOURCE_MEM, "capregs"); if (r == NULL) { @@ -2311,16 +2259,8 @@ static int mv_udc_probe(struct platform_device *pdev) udc->gadget.max_speed = USB_SPEED_HIGH; /* support dual speed */ /* the "gadget" abstracts/virtualizes the controller */ - dev_set_name(&udc->gadget.dev, "gadget"); - udc->gadget.dev.parent = &pdev->dev; - udc->gadget.dev.dma_mask = pdev->dev.dma_mask; - udc->gadget.dev.release = gadget_release; udc->gadget.name = driver_name; /* gadget name */ - retval = device_register(&udc->gadget.dev); - if (retval) - goto err_destroy_dma; - eps_init(udc); /* VBUS detect: we can disable/enable clock on demand.*/ @@ -2342,7 +2282,7 @@ static int mv_udc_probe(struct platform_device *pdev) if (!udc->qwork) { dev_err(&pdev->dev, "cannot create workqueue\n"); retval = -ENOMEM; - goto err_unregister; + goto err_destroy_dma; } INIT_WORK(&udc->vbus_work, mv_udc_vbus_work); @@ -2358,7 +2298,8 @@ static int mv_udc_probe(struct platform_device *pdev) else udc->vbus_active = 1; - retval = usb_add_gadget_udc(&pdev->dev, &udc->gadget); + retval = usb_add_gadget_udc_release(&pdev->dev, &udc->gadget, + gadget_release); if (retval) goto err_create_workqueue; @@ -2370,8 +2311,6 @@ static int mv_udc_probe(struct platform_device *pdev) err_create_workqueue: destroy_workqueue(udc->qwork); -err_unregister: - device_unregister(&udc->gadget.dev); err_destroy_dma: dma_pool_destroy(udc->dtd_pool); err_free_dma: diff --git a/drivers/usb/gadget/ncm.c b/drivers/usb/gadget/ncm.c index a22ad9af0565..3b02fd4649ce 100644 --- a/drivers/usb/gadget/ncm.c +++ b/drivers/usb/gadget/ncm.c @@ -111,6 +111,7 @@ static struct usb_gadget_strings *dev_strings[] = { NULL, }; +struct eth_dev *the_dev; static u8 hostaddr[ETH_ALEN]; /*-------------------------------------------------------------------------*/ @@ -124,7 +125,7 @@ static int __init ncm_do_config(struct usb_configuration *c) c->bmAttributes |= USB_CONFIG_ATT_WAKEUP; } - return ncm_bind_config(c, hostaddr); + return ncm_bind_config(c, hostaddr, the_dev); } static struct usb_configuration ncm_config_driver = { @@ -143,9 +144,9 @@ static int __init gncm_bind(struct usb_composite_dev *cdev) int status; /* set up network link layer */ - status = gether_setup(cdev->gadget, hostaddr); - if (status < 0) - return status; + the_dev = gether_setup(cdev->gadget, hostaddr); + if (IS_ERR(the_dev)) + return PTR_ERR(the_dev); /* Allocate string descriptor numbers ... note that string * contents can be overridden by the composite_dev glue. @@ -168,13 +169,13 @@ static int __init gncm_bind(struct usb_composite_dev *cdev) return 0; fail: - gether_cleanup(); + gether_cleanup(the_dev); return status; } static int __exit gncm_unbind(struct usb_composite_dev *cdev) { - gether_cleanup(); + gether_cleanup(the_dev); return 0; } diff --git a/drivers/usb/gadget/net2272.c b/drivers/usb/gadget/net2272.c index 32524b631959..f1e50a3e322d 100644 --- a/drivers/usb/gadget/net2272.c +++ b/drivers/usb/gadget/net2272.c @@ -58,7 +58,6 @@ static const char * const ep_name[] = { "ep-a", "ep-b", "ep-c", }; -#define DMA_ADDR_INVALID (~(dma_addr_t)0) #ifdef CONFIG_USB_NET2272_DMA /* * use_dma: the NET2272 can use an external DMA controller. @@ -341,7 +340,6 @@ net2272_alloc_request(struct usb_ep *_ep, gfp_t gfp_flags) if (!req) return NULL; - req->req.dma = DMA_ADDR_INVALID; INIT_LIST_HEAD(&req->queue); return &req->req; @@ -913,7 +911,7 @@ net2272_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) } } } - if (likely(req != 0)) + if (likely(req)) list_add_tail(&req->queue, &ep->queue); if (likely(!list_empty(&ep->queue))) @@ -1467,7 +1465,6 @@ static int net2272_start(struct usb_gadget *_gadget, dev->softconnect = 1; driver->driver.bus = NULL; dev->driver = driver; - dev->gadget.dev.driver = &driver->driver; /* ... then enable host detection and ep0; and we're ready * for set_configuration as well as eventual disconnect. @@ -1517,7 +1514,6 @@ static int net2272_stop(struct usb_gadget *_gadget, stop_activity(dev, driver); spin_unlock_irqrestore(&dev->lock, flags); - dev->gadget.dev.driver = NULL; dev->driver = NULL; dev_dbg(dev->dev, "unregistered driver '%s'\n", driver->driver.name); @@ -1549,7 +1545,7 @@ net2272_handle_dma(struct net2272_ep *ep) | (ep->dev->dma_eot_polarity << EOT_POLARITY) | (ep->dev->dma_dack_polarity << DACK_POLARITY) | (ep->dev->dma_dreq_polarity << DREQ_POLARITY) - | ((ep->dma >> 1) << DMA_ENDPOINT_SELECT)); + | (ep->dma << DMA_ENDPOINT_SELECT)); ep->dev->dma_busy = 0; @@ -1622,7 +1618,7 @@ net2272_handle_ep(struct net2272_ep *ep) ep->irqs++; dev_vdbg(ep->dev->dev, "%s ack ep_stat0 %02x, ep_stat1 %02x, req %p\n", - ep->ep.name, stat0, stat1, req ? &req->req : 0); + ep->ep.name, stat0, stat1, req ? &req->req : NULL); net2272_ep_write(ep, EP_STAT0, stat0 & ~((1 << NAK_OUT_PACKETS) @@ -2216,7 +2212,6 @@ net2272_remove(struct net2272 *dev) free_irq(dev->irq, dev); iounmap(dev->base_addr); - device_unregister(&dev->gadget.dev); device_remove_file(dev->dev, &dev_attr_registers); dev_info(dev->dev, "unbind\n"); @@ -2243,10 +2238,6 @@ static struct net2272 *net2272_probe_init(struct device *dev, unsigned int irq) ret->gadget.max_speed = USB_SPEED_HIGH; /* the "gadget" abstracts/virtualizes the controller */ - dev_set_name(&ret->gadget.dev, "gadget"); - ret->gadget.dev.parent = dev; - ret->gadget.dev.dma_mask = dev->dma_mask; - ret->gadget.dev.release = net2272_gadget_release; ret->gadget.name = driver_name; return ret; @@ -2282,14 +2273,12 @@ net2272_probe_fin(struct net2272 *dev, unsigned int irqflags) dma_mode_string()); dev_info(dev->dev, "version: %s\n", driver_vers); - ret = device_register(&dev->gadget.dev); - if (ret) - goto err_irq; ret = device_create_file(dev->dev, &dev_attr_registers); if (ret) - goto err_dev_reg; + goto err_irq; - ret = usb_add_gadget_udc(dev->dev, &dev->gadget); + ret = usb_add_gadget_udc_release(dev->dev, &dev->gadget, + net2272_gadget_release); if (ret) goto err_add_udc; @@ -2297,8 +2286,6 @@ net2272_probe_fin(struct net2272 *dev, unsigned int irqflags) err_add_udc: device_remove_file(dev->dev, &dev_attr_registers); - err_dev_reg: - device_unregister(&dev->gadget.dev); err_irq: free_irq(dev->irq, dev); err: diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c index 3bd0f992fb49..fbd006ab31d3 100644 --- a/drivers/usb/gadget/net2280.c +++ b/drivers/usb/gadget/net2280.c @@ -65,7 +65,6 @@ #define DRIVER_DESC "PLX NET228x USB Peripheral Controller" #define DRIVER_VERSION "2005 Sept 27" -#define DMA_ADDR_INVALID (~(dma_addr_t)0) #define EP_DONTUSE 13 /* nonzero */ #define USE_RDK_LEDS /* GPIO pins control three LEDs */ @@ -406,7 +405,6 @@ net2280_alloc_request (struct usb_ep *_ep, gfp_t gfp_flags) if (!req) return NULL; - req->req.dma = DMA_ADDR_INVALID; INIT_LIST_HEAD (&req->queue); /* this dma descriptor may be swapped with the previous dummy */ @@ -420,7 +418,6 @@ net2280_alloc_request (struct usb_ep *_ep, gfp_t gfp_flags) return NULL; } td->dmacount = 0; /* not VALID */ - td->dmaaddr = cpu_to_le32 (DMA_ADDR_INVALID); td->dmadesc = td->dmaaddr; req->td = td; } @@ -1896,7 +1893,6 @@ static int net2280_start(struct usb_gadget *_gadget, dev->softconnect = 1; driver->driver.bus = NULL; dev->driver = driver; - dev->gadget.dev.driver = &driver->driver; retval = device_create_file (&dev->pdev->dev, &dev_attr_function); if (retval) goto err_unbind; @@ -1924,7 +1920,6 @@ static int net2280_start(struct usb_gadget *_gadget, err_func: device_remove_file (&dev->pdev->dev, &dev_attr_function); err_unbind: - dev->gadget.dev.driver = NULL; dev->driver = NULL; return retval; } @@ -1967,7 +1962,6 @@ static int net2280_stop(struct usb_gadget *_gadget, stop_activity (dev, driver); spin_unlock_irqrestore (&dev->lock, flags); - dev->gadget.dev.driver = NULL; dev->driver = NULL; net2280_led_active (dev, 0); @@ -2072,7 +2066,7 @@ static void handle_ep_small (struct net2280_ep *ep) return; /* manual DMA queue advance after short OUT */ - if (likely (ep->dma != 0)) { + if (likely (ep->dma)) { if (t & (1 << SHORT_PACKET_TRANSFERRED_INTERRUPT)) { u32 count; int stopped = ep->stopped; @@ -2330,7 +2324,7 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat) /* hw handles device and interface status */ if (u.r.bRequestType != (USB_DIR_IN|USB_RECIP_ENDPOINT)) goto delegate; - if ((e = get_ep_by_addr (dev, w_index)) == 0 + if ((e = get_ep_by_addr (dev, w_index)) == NULL || w_length > 2) goto do_stall; @@ -2358,7 +2352,7 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat) if (w_value != USB_ENDPOINT_HALT || w_length != 0) goto do_stall; - if ((e = get_ep_by_addr (dev, w_index)) == 0) + if ((e = get_ep_by_addr (dev, w_index)) == NULL) goto do_stall; if (e->wedged) { VDEBUG(dev, "%s wedged, halt not cleared\n", @@ -2380,7 +2374,7 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat) if (w_value != USB_ENDPOINT_HALT || w_length != 0) goto do_stall; - if ((e = get_ep_by_addr (dev, w_index)) == 0) + if ((e = get_ep_by_addr (dev, w_index)) == NULL) goto do_stall; if (e->ep.name == ep0name) goto do_stall; @@ -2685,7 +2679,6 @@ static void net2280_remove (struct pci_dev *pdev) pci_resource_len (pdev, 0)); if (dev->enabled) pci_disable_device (pdev); - device_unregister (&dev->gadget.dev); device_remove_file (&pdev->dev, &dev_attr_registers); pci_set_drvdata (pdev, NULL); @@ -2717,10 +2710,6 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id) dev->gadget.max_speed = USB_SPEED_HIGH; /* the "gadget" abstracts/virtualizes the controller */ - dev_set_name(&dev->gadget.dev, "gadget"); - dev->gadget.dev.parent = &pdev->dev; - dev->gadget.dev.dma_mask = pdev->dev.dma_mask; - dev->gadget.dev.release = gadget_release; dev->gadget.name = driver_name; /* now all the pci goodies ... */ @@ -2802,7 +2791,6 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id) goto done; } td->dmacount = 0; /* not VALID */ - td->dmaaddr = cpu_to_le32 (DMA_ADDR_INVALID); td->dmadesc = td->dmaaddr; dev->ep [i].dummy = td; } @@ -2829,12 +2817,11 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id) use_dma ? (use_dma_chaining ? "chaining" : "enabled") : "disabled"); - retval = device_register (&dev->gadget.dev); - if (retval) goto done; retval = device_create_file (&pdev->dev, &dev_attr_registers); if (retval) goto done; - retval = usb_add_gadget_udc(&pdev->dev, &dev->gadget); + retval = usb_add_gadget_udc_release(&pdev->dev, &dev->gadget, + gadget_release); if (retval) goto done; return 0; diff --git a/drivers/usb/gadget/nokia.c b/drivers/usb/gadget/nokia.c index def37403989a..3b344b41a167 100644 --- a/drivers/usb/gadget/nokia.c +++ b/drivers/usb/gadget/nokia.c @@ -37,11 +37,9 @@ * the runtime footprint, and giving us at least some parts of what * a "gcc --combine ... part1.c part2.c part3.c ... " build would. */ -#define USB_FACM_INCLUDED -#include "f_acm.c" +#define USBF_OBEX_INCLUDED #include "f_ecm.c" #include "f_obex.c" -#include "f_serial.c" #include "f_phonet.c" #include "u_ether.c" @@ -98,20 +96,40 @@ MODULE_AUTHOR("Felipe Balbi"); MODULE_LICENSE("GPL"); /*-------------------------------------------------------------------------*/ - +static struct usb_function *f_acm_cfg1; +static struct usb_function *f_acm_cfg2; static u8 hostaddr[ETH_ALEN]; +static struct eth_dev *the_dev; enum { TTY_PORT_OBEX0, TTY_PORT_OBEX1, - TTY_PORT_ACM, TTY_PORTS_MAX, }; static unsigned char tty_lines[TTY_PORTS_MAX]; +static struct usb_configuration nokia_config_500ma_driver = { + .label = "Bus Powered", + .bConfigurationValue = 1, + /* .iConfiguration = DYNAMIC */ + .bmAttributes = USB_CONFIG_ATT_ONE, + .MaxPower = 500, +}; + +static struct usb_configuration nokia_config_100ma_driver = { + .label = "Self Powered", + .bConfigurationValue = 2, + /* .iConfiguration = DYNAMIC */ + .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER, + .MaxPower = 100, +}; + +static struct usb_function_instance *fi_acm; + static int __init nokia_bind_config(struct usb_configuration *c) { + struct usb_function *f_acm; int status = 0; status = phonet_bind_config(c); @@ -126,33 +144,32 @@ static int __init nokia_bind_config(struct usb_configuration *c) if (status) printk(KERN_DEBUG "could not bind obex config %d\n", 0); - status = acm_bind_config(c, tty_lines[TTY_PORT_ACM]); - if (status) - printk(KERN_DEBUG "could not bind acm config\n"); + f_acm = usb_get_function(fi_acm); + if (IS_ERR(f_acm)) + return PTR_ERR(f_acm); - status = ecm_bind_config(c, hostaddr); + status = usb_add_function(c, f_acm); if (status) - printk(KERN_DEBUG "could not bind ecm config\n"); + goto err_conf; + + status = ecm_bind_config(c, hostaddr, the_dev); + if (status) { + pr_debug("could not bind ecm config %d\n", status); + goto err_ecm; + } + if (c == &nokia_config_500ma_driver) + f_acm_cfg1 = f_acm; + else + f_acm_cfg2 = f_acm; return status; +err_ecm: + usb_remove_function(c, f_acm); +err_conf: + usb_put_function(f_acm); + return status; } -static struct usb_configuration nokia_config_500ma_driver = { - .label = "Bus Powered", - .bConfigurationValue = 1, - /* .iConfiguration = DYNAMIC */ - .bmAttributes = USB_CONFIG_ATT_ONE, - .MaxPower = 500, -}; - -static struct usb_configuration nokia_config_100ma_driver = { - .label = "Self Powered", - .bConfigurationValue = 2, - /* .iConfiguration = DYNAMIC */ - .bmAttributes = USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER, - .MaxPower = 100, -}; - static int __init nokia_bind(struct usb_composite_dev *cdev) { struct usb_gadget *gadget = cdev->gadget; @@ -169,9 +186,11 @@ static int __init nokia_bind(struct usb_composite_dev *cdev) goto err_ether; } - status = gether_setup(cdev->gadget, hostaddr); - if (status < 0) + the_dev = gether_setup(cdev->gadget, hostaddr); + if (IS_ERR(the_dev)) { + status = PTR_ERR(the_dev); goto err_ether; + } status = usb_string_ids_tab(cdev, strings_dev); if (status < 0) @@ -185,24 +204,32 @@ static int __init nokia_bind(struct usb_composite_dev *cdev) if (!gadget_supports_altsettings(gadget)) goto err_usb; + fi_acm = usb_get_function_instance("acm"); + if (IS_ERR(fi_acm)) + goto err_usb; + /* finally register the configuration */ status = usb_add_config(cdev, &nokia_config_500ma_driver, nokia_bind_config); if (status < 0) - goto err_usb; + goto err_acm_inst; status = usb_add_config(cdev, &nokia_config_100ma_driver, nokia_bind_config); if (status < 0) - goto err_usb; + goto err_put_cfg1; usb_composite_overwrite_options(cdev, &coverwrite); dev_info(&gadget->dev, "%s\n", NOKIA_LONG_NAME); return 0; +err_put_cfg1: + usb_put_function(f_acm_cfg1); +err_acm_inst: + usb_put_function_instance(fi_acm); err_usb: - gether_cleanup(); + gether_cleanup(the_dev); err_ether: cur_line--; while (cur_line >= 0) @@ -217,12 +244,15 @@ static int __exit nokia_unbind(struct usb_composite_dev *cdev) { int i; + usb_put_function(f_acm_cfg1); + usb_put_function(f_acm_cfg2); + usb_put_function_instance(fi_acm); gphonet_cleanup(); for (i = 0; i < TTY_PORTS_MAX; i++) gserial_free_line(tty_lines[i]); - gether_cleanup(); + gether_cleanup(the_dev); return 0; } @@ -247,4 +277,3 @@ static void __exit nokia_cleanup(void) usb_composite_unregister(&nokia_driver); } module_exit(nokia_cleanup); - diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c index f8445653577f..b8ed74a823cb 100644 --- a/drivers/usb/gadget/omap_udc.c +++ b/drivers/usb/gadget/omap_udc.c @@ -2067,7 +2067,6 @@ static int omap_udc_start(struct usb_gadget *g, /* hook up the driver */ driver->driver.bus = NULL; udc->driver = driver; - udc->gadget.dev.driver = &driver->driver; spin_unlock_irqrestore(&udc->lock, flags); if (udc->dc_clk != NULL) @@ -2083,7 +2082,6 @@ static int omap_udc_start(struct usb_gadget *g, ERR("can't bind to transceiver\n"); if (driver->unbind) { driver->unbind(&udc->gadget); - udc->gadget.dev.driver = NULL; udc->driver = NULL; } goto done; @@ -2129,7 +2127,6 @@ static int omap_udc_stop(struct usb_gadget *g, udc_quiesce(udc); spin_unlock_irqrestore(&udc->lock, flags); - udc->gadget.dev.driver = NULL; udc->driver = NULL; if (udc->dc_clk != NULL) @@ -2631,14 +2628,6 @@ omap_udc_setup(struct platform_device *odev, struct usb_phy *xceiv) udc->gadget.speed = USB_SPEED_UNKNOWN; udc->gadget.max_speed = USB_SPEED_FULL; udc->gadget.name = driver_name; - - device_initialize(&udc->gadget.dev); - dev_set_name(&udc->gadget.dev, "gadget"); - udc->gadget.dev.release = omap_udc_release; - udc->gadget.dev.parent = &odev->dev; - if (use_dma) - udc->gadget.dev.dma_mask = odev->dev.dma_mask; - udc->transceiver = xceiv; /* ep0 is special; put it right after the SETUP buffer */ @@ -2912,14 +2901,13 @@ bad_on_1710: } create_proc_file(); - status = device_add(&udc->gadget.dev); + status = usb_add_gadget_udc_release(&pdev->dev, &udc->gadget, + omap_udc_release); if (status) goto cleanup4; - status = usb_add_gadget_udc(&pdev->dev, &udc->gadget); - if (!status) - return status; - /* If fail, fall through */ + return 0; + cleanup4: remove_proc_file(); @@ -2990,7 +2978,6 @@ static int omap_udc_remove(struct platform_device *pdev) release_mem_region(pdev->resource[0].start, pdev->resource[0].end - pdev->resource[0].start + 1); - device_unregister(&udc->gadget.dev); wait_for_completion(&done); return 0; diff --git a/drivers/usb/gadget/pch_udc.c b/drivers/usb/gadget/pch_udc.c index a787a8ef672b..24174e1d1564 100644 --- a/drivers/usb/gadget/pch_udc.c +++ b/drivers/usb/gadget/pch_udc.c @@ -358,7 +358,6 @@ struct pch_udc_dev { prot_stall:1, irq_registered:1, mem_region:1, - registered:1, suspended:1, connected:1, vbus_session:1, @@ -1441,6 +1440,8 @@ static void pch_vbus_gpio_free(struct pch_udc_dev *dev) */ static void complete_req(struct pch_udc_ep *ep, struct pch_udc_request *req, int status) + __releases(&dev->lock) + __acquires(&dev->lock) { struct pch_udc_dev *dev; unsigned halted = ep->halted; @@ -2382,6 +2383,8 @@ static void pch_udc_svc_control_in(struct pch_udc_dev *dev) * @dev: Reference to the device structure */ static void pch_udc_svc_control_out(struct pch_udc_dev *dev) + __releases(&dev->lock) + __acquires(&dev->lock) { u32 stat; int setup_supported; @@ -2989,7 +2992,6 @@ static int pch_udc_start(struct usb_gadget *g, driver->driver.bus = NULL; dev->driver = driver; - dev->gadget.dev.driver = &driver->driver; /* get ready for ep0 traffic */ pch_udc_setup_ep0(dev); @@ -3010,7 +3012,6 @@ static int pch_udc_stop(struct usb_gadget *g, pch_udc_disable_interrupts(dev, UDC_DEVINT_MSK); /* Assures that there are no pending requests with this driver */ - dev->gadget.dev.driver = NULL; dev->driver = NULL; dev->connected = 0; @@ -3078,8 +3079,6 @@ static void pch_udc_remove(struct pci_dev *pdev) pci_resource_len(pdev, PCH_UDC_PCI_BAR)); if (dev->active) pci_disable_device(pdev); - if (dev->registered) - device_unregister(&dev->gadget.dev); kfree(dev); pci_set_drvdata(pdev, NULL); } @@ -3196,21 +3195,13 @@ static int pch_udc_probe(struct pci_dev *pdev, if (retval) goto finished; - dev_set_name(&dev->gadget.dev, "gadget"); - dev->gadget.dev.parent = &pdev->dev; - dev->gadget.dev.dma_mask = pdev->dev.dma_mask; - dev->gadget.dev.release = gadget_release; dev->gadget.name = KBUILD_MODNAME; dev->gadget.max_speed = USB_SPEED_HIGH; - retval = device_register(&dev->gadget.dev); - if (retval) - goto finished; - dev->registered = 1; - /* Put the device in disconnected state till a driver is bound */ pch_udc_set_disconnect(dev); - retval = usb_add_gadget_udc(&pdev->dev, &dev->gadget); + retval = usb_add_gadget_udc_release(&pdev->dev, &dev->gadget, + gadget_release); if (retval) goto finished; return 0; diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c index d0f37484b6b0..ef47495dec8f 100644 --- a/drivers/usb/gadget/pxa25x_udc.c +++ b/drivers/usb/gadget/pxa25x_udc.c @@ -1263,7 +1263,6 @@ static int pxa25x_udc_start(struct usb_gadget *g, /* first hook up the driver ... */ dev->driver = driver; - dev->gadget.dev.driver = &driver->driver; dev->pullup = 1; /* ... then enable host detection and ep0; and we're ready @@ -1325,7 +1324,6 @@ static int pxa25x_udc_stop(struct usb_gadget*g, if (!IS_ERR_OR_NULL(dev->transceiver)) (void) otg_set_peripheral(dev->transceiver->otg, NULL); - dev->gadget.dev.driver = NULL; dev->driver = NULL; dump_state(dev); @@ -2138,17 +2136,6 @@ static int __init pxa25x_udc_probe(struct platform_device *pdev) dev->timer.function = udc_watchdog; dev->timer.data = (unsigned long) dev; - device_initialize(&dev->gadget.dev); - dev->gadget.dev.parent = &pdev->dev; - dev->gadget.dev.dma_mask = pdev->dev.dma_mask; - - retval = device_add(&dev->gadget.dev); - if (retval) { - dev->driver = NULL; - dev->gadget.dev.driver = NULL; - goto err_device_add; - } - the_controller = dev; platform_set_drvdata(pdev, dev); @@ -2199,8 +2186,6 @@ lubbock_fail0: free_irq(irq, dev); #endif err_irq1: - device_unregister(&dev->gadget.dev); - err_device_add: if (gpio_is_valid(dev->mach->gpio_pullup)) gpio_free(dev->mach->gpio_pullup); err_gpio_pullup: @@ -2226,7 +2211,6 @@ static int __exit pxa25x_udc_remove(struct platform_device *pdev) return -EBUSY; usb_del_gadget_udc(&dev->gadget); - device_unregister(&dev->gadget.dev); dev->pullup = 0; pullup(dev); diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c index 2fc867652ef5..6b4c7d95853f 100644 --- a/drivers/usb/gadget/pxa27x_udc.c +++ b/drivers/usb/gadget/pxa27x_udc.c @@ -24,14 +24,12 @@ #include <linux/gpio.h> #include <linux/slab.h> #include <linux/prefetch.h> - -#include <asm/byteorder.h> -#include <mach/hardware.h> +#include <linux/byteorder/generic.h> +#include <linux/platform_data/pxa2xx_udc.h> #include <linux/usb.h> #include <linux/usb/ch9.h> #include <linux/usb/gadget.h> -#include <mach/udc.h> #include "pxa27x_udc.h" @@ -611,7 +609,7 @@ static void inc_ep_stats_bytes(struct pxa_ep *ep, int count, int is_in) * * Find the physical pxa27x ep, and setup its UDCCR */ -static __init void pxa_ep_setup(struct pxa_ep *ep) +static void pxa_ep_setup(struct pxa_ep *ep) { u32 new_udccr; @@ -633,7 +631,7 @@ static __init void pxa_ep_setup(struct pxa_ep *ep) * * Setup all pxa physical endpoints, except ep0 */ -static __init void pxa_eps_setup(struct pxa_udc *dev) +static void pxa_eps_setup(struct pxa_udc *dev) { unsigned int i; @@ -1718,7 +1716,7 @@ static void udc_disable(struct pxa_udc *udc) * Initializes gadget endpoint list, endpoints locks. No action is taken * on the hardware. */ -static __init void udc_init_data(struct pxa_udc *dev) +static void udc_init_data(struct pxa_udc *dev) { int i; struct pxa_ep *ep; @@ -1811,7 +1809,6 @@ static int pxa27x_udc_start(struct usb_gadget *g, /* first hook up the driver ... */ udc->driver = driver; - udc->gadget.dev.driver = &driver->driver; dplus_pullup(udc, 1); if (!IS_ERR_OR_NULL(udc->transceiver)) { @@ -1829,7 +1826,6 @@ static int pxa27x_udc_start(struct usb_gadget *g, fail: udc->driver = NULL; - udc->gadget.dev.driver = NULL; return retval; } @@ -1871,7 +1867,6 @@ static int pxa27x_udc_stop(struct usb_gadget *g, udc->driver = NULL; - if (!IS_ERR_OR_NULL(udc->transceiver)) return otg_set_peripheral(udc->transceiver->otg, NULL); return 0; @@ -2413,7 +2408,7 @@ static struct pxa_udc memory = { * Perform basic init : allocates udc clock, creates sysfs files, requests * irq. */ -static int __init pxa_udc_probe(struct platform_device *pdev) +static int pxa_udc_probe(struct platform_device *pdev) { struct resource *regs; struct pxa_udc *udc = &memory; @@ -2456,9 +2451,6 @@ static int __init pxa_udc_probe(struct platform_device *pdev) goto err_map; } - device_initialize(&udc->gadget.dev); - udc->gadget.dev.parent = &pdev->dev; - udc->gadget.dev.dma_mask = NULL; udc->vbus_sensed = 0; the_controller = udc; @@ -2475,12 +2467,6 @@ static int __init pxa_udc_probe(struct platform_device *pdev) goto err_irq; } - retval = device_add(&udc->gadget.dev); - if (retval) { - dev_err(udc->dev, "device_add error %d\n", retval); - goto err_dev_add; - } - retval = usb_add_gadget_udc(&pdev->dev, &udc->gadget); if (retval) goto err_add_udc; @@ -2490,8 +2476,6 @@ static int __init pxa_udc_probe(struct platform_device *pdev) return 0; err_add_udc: - device_unregister(&udc->gadget.dev); -err_dev_add: free_irq(udc->irq, udc); err_irq: iounmap(udc->regs); @@ -2506,13 +2490,12 @@ err_clk: * pxa_udc_remove - removes the udc device driver * @_dev: platform device */ -static int __exit pxa_udc_remove(struct platform_device *_dev) +static int pxa_udc_remove(struct platform_device *_dev) { struct pxa_udc *udc = platform_get_drvdata(_dev); int gpio = udc->mach->gpio_pullup; usb_del_gadget_udc(&udc->gadget); - device_del(&udc->gadget.dev); usb_gadget_unregister_driver(udc->driver); free_irq(udc->irq, udc); pxa_cleanup_debugfs(udc); @@ -2625,7 +2608,8 @@ static struct platform_driver udc_driver = { .name = "pxa27x-udc", .owner = THIS_MODULE, }, - .remove = __exit_p(pxa_udc_remove), + .probe = pxa_udc_probe, + .remove = pxa_udc_remove, .shutdown = pxa_udc_shutdown, #ifdef CONFIG_PM .suspend = pxa_udc_suspend, @@ -2633,22 +2617,7 @@ static struct platform_driver udc_driver = { #endif }; -static int __init udc_init(void) -{ - if (!cpu_is_pxa27x() && !cpu_is_pxa3xx()) - return -ENODEV; - - printk(KERN_INFO "%s: version %s\n", driver_name, DRIVER_VERSION); - return platform_driver_probe(&udc_driver, pxa_udc_probe); -} -module_init(udc_init); - - -static void __exit udc_exit(void) -{ - platform_driver_unregister(&udc_driver); -} -module_exit(udc_exit); +module_platform_driver(udc_driver); MODULE_DESCRIPTION(DRIVER_DESC); MODULE_AUTHOR("Robert Jarzmik"); diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c index f46a1b77ce3e..0b742d171843 100644 --- a/drivers/usb/gadget/r8a66597-udc.c +++ b/drivers/usb/gadget/r8a66597-udc.c @@ -1837,7 +1837,6 @@ static int __exit r8a66597_remove(struct platform_device *pdev) clk_put(r8a66597->clk); } - device_unregister(&r8a66597->gadget.dev); kfree(r8a66597); return 0; } @@ -1915,17 +1914,8 @@ static int __init r8a66597_probe(struct platform_device *pdev) r8a66597->irq_sense_low = irq_trigger == IRQF_TRIGGER_LOW; r8a66597->gadget.ops = &r8a66597_gadget_ops; - dev_set_name(&r8a66597->gadget.dev, "gadget"); r8a66597->gadget.max_speed = USB_SPEED_HIGH; - r8a66597->gadget.dev.parent = &pdev->dev; - r8a66597->gadget.dev.dma_mask = pdev->dev.dma_mask; - r8a66597->gadget.dev.release = pdev->dev.release; r8a66597->gadget.name = udc_name; - ret = device_register(&r8a66597->gadget.dev); - if (ret < 0) { - dev_err(&pdev->dev, "device_register failed\n"); - goto clean_up; - } init_timer(&r8a66597->timer); r8a66597->timer.function = r8a66597_timer; @@ -1939,7 +1929,7 @@ static int __init r8a66597_probe(struct platform_device *pdev) dev_err(&pdev->dev, "cannot get clock \"%s\"\n", clk_name); ret = PTR_ERR(r8a66597->clk); - goto clean_up_dev; + goto clean_up; } clk_enable(r8a66597->clk); } @@ -2007,8 +1997,6 @@ clean_up2: clk_disable(r8a66597->clk); clk_put(r8a66597->clk); } -clean_up_dev: - device_unregister(&r8a66597->gadget.dev); clean_up: if (r8a66597) { if (r8a66597->sudmac_reg) diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index c26564f29a2c..a3cdc32115d5 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -39,8 +39,6 @@ #include "s3c-hsotg.h" -#define DMA_ADDR_INVALID (~((dma_addr_t)0)) - static const char * const s3c_hsotg_supply_names[] = { "vusb_d", /* digital USB supply, 1.2V */ "vusb_a", /* analog USB supply, 1.1V */ @@ -405,7 +403,6 @@ static struct usb_request *s3c_hsotg_ep_alloc_request(struct usb_ep *ep, INIT_LIST_HEAD(&req->queue); - req->req.dma = DMA_ADDR_INVALID; return &req->req; } @@ -435,24 +432,12 @@ static void s3c_hsotg_unmap_dma(struct s3c_hsotg *hsotg, struct s3c_hsotg_req *hs_req) { struct usb_request *req = &hs_req->req; - enum dma_data_direction dir; - - dir = hs_ep->dir_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE; /* ignore this if we're not moving any data */ if (hs_req->req.length == 0) return; - if (hs_req->mapped) { - /* we mapped this, so unmap and remove the dma */ - - dma_unmap_single(hsotg->dev, req->dma, req->length, dir); - - req->dma = DMA_ADDR_INVALID; - hs_req->mapped = 0; - } else { - dma_sync_single_for_cpu(hsotg->dev, req->dma, req->length, dir); - } + usb_gadget_unmap_request(&hsotg->gadget, hs_req, hs_ep->dir_in); } /** @@ -852,37 +837,16 @@ static int s3c_hsotg_map_dma(struct s3c_hsotg *hsotg, struct s3c_hsotg_ep *hs_ep, struct usb_request *req) { - enum dma_data_direction dir; struct s3c_hsotg_req *hs_req = our_req(req); - - dir = hs_ep->dir_in ? DMA_TO_DEVICE : DMA_FROM_DEVICE; + int ret; /* if the length is zero, ignore the DMA data */ if (hs_req->req.length == 0) return 0; - if (req->dma == DMA_ADDR_INVALID) { - dma_addr_t dma; - - dma = dma_map_single(hsotg->dev, req->buf, req->length, dir); - - if (unlikely(dma_mapping_error(hsotg->dev, dma))) - goto dma_error; - - if (dma & 3) { - dev_err(hsotg->dev, "%s: unaligned dma buffer\n", - __func__); - - dma_unmap_single(hsotg->dev, dma, req->length, dir); - return -EINVAL; - } - - hs_req->mapped = 1; - req->dma = dma; - } else { - dma_sync_single_for_cpu(hsotg->dev, req->dma, req->length, dir); - hs_req->mapped = 0; - } + ret = usb_gadget_map_request(&hsotg->gadget, req, hs_ep->dir_in); + if (ret) + goto dma_error; return 0; @@ -2961,9 +2925,7 @@ static int s3c_hsotg_udc_start(struct usb_gadget *gadget, driver->driver.bus = NULL; hsotg->driver = driver; - hsotg->gadget.dev.driver = &driver->driver; hsotg->gadget.dev.of_node = hsotg->dev->of_node; - hsotg->gadget.dev.dma_mask = hsotg->dev->dma_mask; hsotg->gadget.speed = USB_SPEED_UNKNOWN; ret = regulator_bulk_enable(ARRAY_SIZE(hsotg->supplies), @@ -2979,7 +2941,6 @@ static int s3c_hsotg_udc_start(struct usb_gadget *gadget, err: hsotg->driver = NULL; - hsotg->gadget.dev.driver = NULL; return ret; } @@ -3014,7 +2975,6 @@ static int s3c_hsotg_udc_stop(struct usb_gadget *gadget, hsotg->driver = NULL; hsotg->gadget.speed = USB_SPEED_UNKNOWN; - hsotg->gadget.dev.driver = NULL; spin_unlock_irqrestore(&hsotg->lock, flags); @@ -3484,16 +3444,6 @@ static void s3c_hsotg_delete_debug(struct s3c_hsotg *hsotg) } /** - * s3c_hsotg_release - release callback for hsotg device - * @dev: Device to for which release is called - * - * Nothing to do as the resource is allocated using devm_ API. - */ -static void s3c_hsotg_release(struct device *dev) -{ -} - -/** * s3c_hsotg_probe - probe function for hsotg driver * @pdev: The platform information for the driver */ @@ -3517,7 +3467,7 @@ static int s3c_hsotg_probe(struct platform_device *pdev) } phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2); - if (IS_ERR_OR_NULL(phy)) { + if (IS_ERR(phy)) { /* Fallback for pdata */ plat = pdev->dev.platform_data; if (!plat) { @@ -3567,18 +3517,10 @@ static int s3c_hsotg_probe(struct platform_device *pdev) dev_info(dev, "regs %p, irq %d\n", hsotg->regs, hsotg->irq); - device_initialize(&hsotg->gadget.dev); - - dev_set_name(&hsotg->gadget.dev, "gadget"); - hsotg->gadget.max_speed = USB_SPEED_HIGH; hsotg->gadget.ops = &s3c_hsotg_gadget_ops; hsotg->gadget.name = dev_name(dev); - hsotg->gadget.dev.parent = dev; - hsotg->gadget.dev.dma_mask = dev->dma_mask; - hsotg->gadget.dev.release = s3c_hsotg_release; - /* reset the system */ clk_prepare_enable(hsotg->clk); @@ -3658,12 +3600,6 @@ static int s3c_hsotg_probe(struct platform_device *pdev) s3c_hsotg_phy_disable(hsotg); - ret = device_add(&hsotg->gadget.dev); - if (ret) { - put_device(&hsotg->gadget.dev); - goto err_ep_mem; - } - ret = usb_add_gadget_udc(&pdev->dev, &hsotg->gadget); if (ret) goto err_ep_mem; @@ -3702,10 +3638,8 @@ static int s3c_hsotg_remove(struct platform_device *pdev) } s3c_hsotg_phy_disable(hsotg); - clk_disable_unprepare(hsotg->clk); - device_unregister(&hsotg->gadget.dev); return 0; } diff --git a/drivers/usb/gadget/s3c-hsudc.c b/drivers/usb/gadget/s3c-hsudc.c index 458965a1b138..b1f0771fbd3d 100644 --- a/drivers/usb/gadget/s3c-hsudc.c +++ b/drivers/usb/gadget/s3c-hsudc.c @@ -283,7 +283,6 @@ static void s3c_hsudc_nuke_ep(struct s3c_hsudc_ep *hsep, int status) /** * s3c_hsudc_stop_activity - Stop activity on all endpoints. * @hsudc: Device controller for which EP activity is to be stopped. - * @driver: Reference to the gadget driver which is currently active. * * All the endpoints are stopped and any pending transfer requests if any on * the endpoint are terminated. @@ -1154,7 +1153,6 @@ static int s3c_hsudc_start(struct usb_gadget *gadget, return -EBUSY; hsudc->driver = driver; - hsudc->gadget.dev.driver = &driver->driver; ret = regulator_bulk_enable(ARRAY_SIZE(hsudc->supplies), hsudc->supplies); @@ -1190,7 +1188,6 @@ err_otg: regulator_bulk_disable(ARRAY_SIZE(hsudc->supplies), hsudc->supplies); err_supplies: hsudc->driver = NULL; - hsudc->gadget.dev.driver = NULL; return ret; } @@ -1208,7 +1205,6 @@ static int s3c_hsudc_stop(struct usb_gadget *gadget, spin_lock_irqsave(&hsudc->lock, flags); hsudc->driver = NULL; - hsudc->gadget.dev.driver = NULL; hsudc->gadget.speed = USB_SPEED_UNKNOWN; s3c_hsudc_uninit_phy(); @@ -1303,15 +1299,10 @@ static int s3c_hsudc_probe(struct platform_device *pdev) spin_lock_init(&hsudc->lock); - dev_set_name(&hsudc->gadget.dev, "gadget"); - hsudc->gadget.max_speed = USB_SPEED_HIGH; hsudc->gadget.ops = &s3c_hsudc_gadget_ops; hsudc->gadget.name = dev_name(dev); - hsudc->gadget.dev.parent = dev; - hsudc->gadget.dev.dma_mask = dev->dma_mask; hsudc->gadget.ep0 = &hsudc->ep[0].ep; - hsudc->gadget.is_otg = 0; hsudc->gadget.is_a_peripheral = 0; hsudc->gadget.speed = USB_SPEED_UNKNOWN; @@ -1345,12 +1336,6 @@ static int s3c_hsudc_probe(struct platform_device *pdev) disable_irq(hsudc->irq); local_irq_enable(); - ret = device_register(&hsudc->gadget.dev); - if (ret) { - put_device(&hsudc->gadget.dev); - goto err_add_device; - } - ret = usb_add_gadget_udc(&pdev->dev, &hsudc->gadget); if (ret) goto err_add_udc; @@ -1359,7 +1344,6 @@ static int s3c_hsudc_probe(struct platform_device *pdev) return 0; err_add_udc: - device_unregister(&hsudc->gadget.dev); err_add_device: clk_disable(hsudc->uclk); err_res: diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c index 08f89652533b..d0e75e1b3ccb 100644 --- a/drivers/usb/gadget/s3c2410_udc.c +++ b/drivers/usb/gadget/s3c2410_udc.c @@ -1674,7 +1674,6 @@ static int s3c2410_udc_start(struct usb_gadget *g, /* Hook the driver */ udc->driver = driver; - udc->gadget.dev.driver = &driver->driver; /* Enable udc */ s3c2410_udc_enable(udc); @@ -1824,17 +1823,6 @@ static int s3c2410_udc_probe(struct platform_device *pdev) goto err_mem; } - device_initialize(&udc->gadget.dev); - udc->gadget.dev.parent = &pdev->dev; - udc->gadget.dev.dma_mask = pdev->dev.dma_mask; - - /* Bind the driver */ - retval = device_add(&udc->gadget.dev); - if (retval) { - dev_err(&udc->gadget.dev, "Error in device_add() : %d\n", retval); - goto err_device_add; - } - the_controller = udc; platform_set_drvdata(pdev, udc); @@ -1923,8 +1911,6 @@ err_gpio_claim: err_int: free_irq(IRQ_USBD, udc); err_map: - device_unregister(&udc->gadget.dev); -err_device_add: iounmap(base_addr); err_mem: release_mem_region(rsrc_start, rsrc_len); @@ -1946,7 +1932,6 @@ static int s3c2410_udc_remove(struct platform_device *pdev) return -EBUSY; usb_del_gadget_udc(&udc->gadget); - device_unregister(&udc->gadget.dev); debugfs_remove(udc->regs_info); if (udc_info && !udc_info->udc_command && diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c index 68d7bb06ebcb..1f5f978d35d5 100644 --- a/drivers/usb/gadget/serial.c +++ b/drivers/usb/gadget/serial.c @@ -12,6 +12,7 @@ #include <linux/kernel.h> #include <linux/device.h> +#include <linux/module.h> #include <linux/tty.h> #include <linux/tty_flip.h> @@ -28,18 +29,6 @@ #define GS_VERSION_NAME GS_LONG_NAME " " GS_VERSION_STR /*-------------------------------------------------------------------------*/ - -/* - * Kbuild is not very cooperative with respect to linking separately - * compiled library objects into one module. So for now we won't use - * separate compilation ... ensuring init/exit sections work to shrink - * the runtime footprint, and giving us at least some parts of what - * a "gcc --combine ... part1.c part2.c part3.c ... " build would. - */ -#include "f_obex.c" -#include "f_serial.c" - -/*-------------------------------------------------------------------------*/ USB_GADGET_COMPOSITE_OPTIONS(); /* Thanks to NetChip Technologies for donating this product ID. @@ -126,27 +115,6 @@ module_param(n_ports, uint, 0); MODULE_PARM_DESC(n_ports, "number of ports to create, default=1"); /*-------------------------------------------------------------------------*/ -static unsigned char tty_lines[MAX_U_SERIAL_PORTS]; - -static int __init serial_bind_obex_config(struct usb_configuration *c) -{ - unsigned i; - int status = 0; - - for (i = 0; i < n_ports && status == 0; i++) - status = obex_bind_config(c, tty_lines[i]); - return status; -} - -static int __init serial_bind_gser_config(struct usb_configuration *c) -{ - unsigned i; - int status = 0; - - for (i = 0; i < n_ports && status == 0; i++) - status = gser_bind_config(c, tty_lines[i]); - return status; -} static struct usb_configuration serial_config_driver = { /* .label = f(use_acm) */ @@ -169,15 +137,12 @@ static int serial_register_ports(struct usb_composite_dev *cdev, goto out; for (i = 0; i < n_ports; i++) { - struct f_serial_opts *opts; fi_serial[i] = usb_get_function_instance(f_name); if (IS_ERR(fi_serial[i])) { ret = PTR_ERR(fi_serial[i]); goto fail; } - opts = container_of(fi_serial[i], struct f_serial_opts, func_inst); - opts->port_num = tty_lines[i]; f_serial[i] = usb_get_function(fi_serial[i]); if (IS_ERR(f_serial[i])) { @@ -212,13 +177,6 @@ out: static int __init gs_bind(struct usb_composite_dev *cdev) { int status; - int cur_line; - - for (cur_line = 0; cur_line < n_ports; cur_line++) { - status = gserial_alloc_line(&tty_lines[cur_line]); - if (status) - goto fail; - } /* Allocate string descriptor numbers ... note that string * contents can be overridden by the composite_dev glue. @@ -243,11 +201,12 @@ static int __init gs_bind(struct usb_composite_dev *cdev) "acm"); usb_ep_autoconfig_reset(cdev->gadget); } else if (use_obex) - status = usb_add_config(cdev, &serial_config_driver, - serial_bind_obex_config); - else - status = usb_add_config(cdev, &serial_config_driver, - serial_bind_gser_config); + status = serial_register_ports(cdev, &serial_config_driver, + "obex"); + else { + status = serial_register_ports(cdev, &serial_config_driver, + "gser"); + } if (status < 0) goto fail; @@ -257,9 +216,6 @@ static int __init gs_bind(struct usb_composite_dev *cdev) return 0; fail: - cur_line--; - while (cur_line >= 0) - gserial_free_line(tty_lines[cur_line--]); return status; } @@ -270,7 +226,6 @@ static int gs_unbind(struct usb_composite_dev *cdev) for (i = 0; i < n_ports; i++) { usb_put_function(f_serial[i]); usb_put_function_instance(fi_serial[i]); - gserial_free_line(tty_lines[i]); } return 0; } diff --git a/drivers/usb/gadget/u_ether.c b/drivers/usb/gadget/u_ether.c index a0aa721d8b21..4b76124ce96b 100644 --- a/drivers/usb/gadget/u_ether.c +++ b/drivers/usb/gadget/u_ether.c @@ -50,7 +50,6 @@ struct eth_dev { /* lock is held while accessing port_usb - * or updating its backlink port_usb->ioport */ spinlock_t lock; struct gether *port_usb; @@ -729,8 +728,6 @@ static int get_ether_addr(const char *str, u8 *dev_addr) return 1; } -static struct eth_dev *the_dev; - static const struct net_device_ops eth_netdev_ops = { .ndo_open = eth_open, .ndo_stop = eth_stop, @@ -758,19 +755,16 @@ static struct device_type gadget_type = { * * Returns negative errno, or zero on success */ -int gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN], +struct eth_dev *gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN], const char *netname) { struct eth_dev *dev; struct net_device *net; int status; - if (the_dev) - return -EBUSY; - net = alloc_etherdev(sizeof *dev); if (!net) - return -ENOMEM; + return ERR_PTR(-ENOMEM); dev = netdev_priv(net); spin_lock_init(&dev->lock); @@ -807,12 +801,11 @@ int gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN], if (status < 0) { dev_dbg(&g->dev, "register_netdev failed, %d\n", status); free_netdev(net); + dev = ERR_PTR(status); } else { INFO(dev, "MAC %pM\n", net->dev_addr); INFO(dev, "HOST MAC %pM\n", dev->host_mac); - the_dev = dev; - /* two kinds of host-initiated state changes: * - iff DATA transfer is active, carrier is "on" * - tx queueing enabled if open *and* carrier is "on" @@ -820,7 +813,7 @@ int gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN], netif_carrier_off(net); } - return status; + return dev; } /** @@ -829,19 +822,16 @@ int gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN], * * This is called to free all resources allocated by @gether_setup(). */ -void gether_cleanup(void) +void gether_cleanup(struct eth_dev *dev) { - if (!the_dev) + if (!dev) return; - unregister_netdev(the_dev->net); - flush_work(&the_dev->work); - free_netdev(the_dev->net); - - the_dev = NULL; + unregister_netdev(dev->net); + flush_work(&dev->work); + free_netdev(dev->net); } - /** * gether_connect - notify network layer that USB link is active * @link: the USB link, set up with endpoints, descriptors matching @@ -860,7 +850,7 @@ void gether_cleanup(void) */ struct net_device *gether_connect(struct gether *link) { - struct eth_dev *dev = the_dev; + struct eth_dev *dev = link->ioport; int result = 0; if (!dev) @@ -895,7 +885,6 @@ struct net_device *gether_connect(struct gether *link) spin_lock(&dev->lock); dev->port_usb = link; - link->ioport = dev; if (netif_running(dev->net)) { if (link->open) link->open(link); @@ -989,6 +978,5 @@ void gether_disconnect(struct gether *link) spin_lock(&dev->lock); dev->port_usb = NULL; - link->ioport = NULL; spin_unlock(&dev->lock); } diff --git a/drivers/usb/gadget/u_ether.h b/drivers/usb/gadget/u_ether.h index 6f4a1623d854..02522338a708 100644 --- a/drivers/usb/gadget/u_ether.h +++ b/drivers/usb/gadget/u_ether.h @@ -21,6 +21,7 @@ #include "gadget_chips.h" +struct eth_dev; /* * This represents the USB side of an "ethernet" link, managed by a USB @@ -70,7 +71,7 @@ struct gether { |USB_CDC_PACKET_TYPE_DIRECTED) /* variant of gether_setup that allows customizing network device name */ -int gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN], +struct eth_dev *gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN], const char *netname); /* netdev setup/teardown as directed by the gadget driver */ @@ -86,12 +87,13 @@ int gether_setup_name(struct usb_gadget *g, u8 ethaddr[ETH_ALEN], * * Returns negative errno, or zero on success */ -static inline int gether_setup(struct usb_gadget *g, u8 ethaddr[ETH_ALEN]) +static inline struct eth_dev *gether_setup(struct usb_gadget *g, + u8 ethaddr[ETH_ALEN]) { return gether_setup_name(g, ethaddr, "usb"); } -void gether_cleanup(void); +void gether_cleanup(struct eth_dev *dev); /* connect/disconnect is handled by individual functions */ struct net_device *gether_connect(struct gether *); @@ -111,21 +113,24 @@ static inline bool can_support_ecm(struct usb_gadget *gadget) } /* each configuration may bind one instance of an ethernet link */ -int geth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]); -int ecm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]); -int ncm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]); -int eem_bind_config(struct usb_configuration *c); +int geth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], + struct eth_dev *dev); +int ecm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], + struct eth_dev *dev); +int ncm_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], + struct eth_dev *dev); +int eem_bind_config(struct usb_configuration *c, struct eth_dev *dev); #ifdef USB_ETH_RNDIS int rndis_bind_config_vendor(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], - u32 vendorID, const char *manufacturer); + u32 vendorID, const char *manufacturer, struct eth_dev *dev); #else static inline int rndis_bind_config_vendor(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], - u32 vendorID, const char *manufacturer) + u32 vendorID, const char *manufacturer, struct eth_dev *dev) { return 0; } @@ -145,9 +150,9 @@ rndis_bind_config_vendor(struct usb_configuration *c, u8 ethaddr[ETH_ALEN], * for calling @gether_cleanup() before module unload. */ static inline int rndis_bind_config(struct usb_configuration *c, - u8 ethaddr[ETH_ALEN]) + u8 ethaddr[ETH_ALEN], struct eth_dev *dev) { - return rndis_bind_config_vendor(c, ethaddr, 0, NULL); + return rndis_bind_config_vendor(c, ethaddr, 0, NULL, dev); } diff --git a/drivers/usb/gadget/u_serial.h b/drivers/usb/gadget/u_serial.h index 66ce73a00509..c20210c0babd 100644 --- a/drivers/usb/gadget/u_serial.h +++ b/drivers/usb/gadget/u_serial.h @@ -65,7 +65,6 @@ int gserial_connect(struct gserial *, u8 port_num); void gserial_disconnect(struct gserial *); /* functions are bound to configurations by a config or gadget driver */ -int acm_bind_config(struct usb_configuration *c, u8 port_num); int gser_bind_config(struct usb_configuration *c, u8 port_num); int obex_bind_config(struct usb_configuration *c, u8 port_num); diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c index f8f62c3ed65e..ffd8fa541101 100644 --- a/drivers/usb/gadget/udc-core.c +++ b/drivers/usb/gadget/udc-core.c @@ -101,6 +101,16 @@ EXPORT_SYMBOL_GPL(usb_gadget_unmap_request); /* ------------------------------------------------------------------------- */ +void usb_gadget_set_state(struct usb_gadget *gadget, + enum usb_device_state state) +{ + gadget->state = state; + sysfs_notify(&gadget->dev.kobj, NULL, "status"); +} +EXPORT_SYMBOL_GPL(usb_gadget_set_state); + +/* ------------------------------------------------------------------------- */ + /** * usb_gadget_udc_start - tells usb device controller to start up * @gadget: The gadget we want to get started @@ -156,15 +166,23 @@ static void usb_udc_release(struct device *dev) } static const struct attribute_group *usb_udc_attr_groups[]; + +static void usb_udc_nop_release(struct device *dev) +{ + dev_vdbg(dev, "%s\n", __func__); +} + /** - * usb_add_gadget_udc - adds a new gadget to the udc class driver list - * @parent: the parent device to this udc. Usually the controller - * driver's device. - * @gadget: the gadget to be added to the list + * usb_add_gadget_udc_release - adds a new gadget to the udc class driver list + * @parent: the parent device to this udc. Usually the controller driver's + * device. + * @gadget: the gadget to be added to the list. + * @release: a gadget release function. * * Returns zero on success, negative errno otherwise. */ -int usb_add_gadget_udc(struct device *parent, struct usb_gadget *gadget) +int usb_add_gadget_udc_release(struct device *parent, struct usb_gadget *gadget, + void (*release)(struct device *dev)) { struct usb_udc *udc; int ret = -ENOMEM; @@ -173,6 +191,22 @@ int usb_add_gadget_udc(struct device *parent, struct usb_gadget *gadget) if (!udc) goto err1; + dev_set_name(&gadget->dev, "gadget"); + gadget->dev.parent = parent; + + dma_set_coherent_mask(&gadget->dev, parent->coherent_dma_mask); + gadget->dev.dma_parms = parent->dma_parms; + gadget->dev.dma_mask = parent->dma_mask; + + if (release) + gadget->dev.release = release; + else + gadget->dev.release = usb_udc_nop_release; + + ret = device_register(&gadget->dev); + if (ret) + goto err2; + device_initialize(&udc->dev); udc->dev.release = usb_udc_release; udc->dev.class = udc_class; @@ -180,7 +214,7 @@ int usb_add_gadget_udc(struct device *parent, struct usb_gadget *gadget) udc->dev.parent = parent; ret = dev_set_name(&udc->dev, "%s", kobject_name(&parent->kobj)); if (ret) - goto err2; + goto err3; udc->gadget = gadget; @@ -189,21 +223,42 @@ int usb_add_gadget_udc(struct device *parent, struct usb_gadget *gadget) ret = device_add(&udc->dev); if (ret) - goto err3; + goto err4; + + usb_gadget_set_state(gadget, USB_STATE_NOTATTACHED); mutex_unlock(&udc_lock); return 0; -err3: + +err4: list_del(&udc->list); mutex_unlock(&udc_lock); -err2: +err3: put_device(&udc->dev); +err2: + put_device(&gadget->dev); + kfree(udc); + err1: return ret; } +EXPORT_SYMBOL_GPL(usb_add_gadget_udc_release); + +/** + * usb_add_gadget_udc - adds a new gadget to the udc class driver list + * @parent: the parent device to this udc. Usually the controller + * driver's device. + * @gadget: the gadget to be added to the list + * + * Returns zero on success, negative errno otherwise. + */ +int usb_add_gadget_udc(struct device *parent, struct usb_gadget *gadget) +{ + return usb_add_gadget_udc_release(parent, gadget, NULL); +} EXPORT_SYMBOL_GPL(usb_add_gadget_udc); static void usb_gadget_remove_driver(struct usb_udc *udc) @@ -220,6 +275,7 @@ static void usb_gadget_remove_driver(struct usb_udc *udc) udc->driver = NULL; udc->dev.driver = NULL; + udc->gadget->dev.driver = NULL; } /** @@ -254,6 +310,7 @@ found: kobject_uevent(&udc->dev.kobj, KOBJ_REMOVE); device_unregister(&udc->dev); + device_unregister(&gadget->dev); } EXPORT_SYMBOL_GPL(usb_del_gadget_udc); @@ -268,6 +325,7 @@ static int udc_bind_to_driver(struct usb_udc *udc, struct usb_gadget_driver *dri udc->driver = driver; udc->dev.driver = &driver->driver; + udc->gadget->dev.driver = &driver->driver; ret = driver->bind(udc->gadget, driver); if (ret) @@ -286,6 +344,7 @@ err1: udc->driver->function, ret); udc->driver = NULL; udc->dev.driver = NULL; + udc->gadget->dev.driver = NULL; return ret; } @@ -395,6 +454,16 @@ static ssize_t usb_udc_softconn_store(struct device *dev, } static DEVICE_ATTR(soft_connect, S_IWUSR, NULL, usb_udc_softconn_store); +static ssize_t usb_gadget_state_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct usb_udc *udc = container_of(dev, struct usb_udc, dev); + struct usb_gadget *gadget = udc->gadget; + + return sprintf(buf, "%s\n", usb_state_string(gadget->state)); +} +static DEVICE_ATTR(state, S_IRUGO, usb_gadget_state_show, NULL); + #define USB_UDC_SPEED_ATTR(name, param) \ ssize_t usb_udc_##param##_show(struct device *dev, \ struct device_attribute *attr, char *buf) \ @@ -403,7 +472,7 @@ ssize_t usb_udc_##param##_show(struct device *dev, \ return snprintf(buf, PAGE_SIZE, "%s\n", \ usb_speed_string(udc->gadget->param)); \ } \ -static DEVICE_ATTR(name, S_IRUSR, usb_udc_##param##_show, NULL) +static DEVICE_ATTR(name, S_IRUGO, usb_udc_##param##_show, NULL) static USB_UDC_SPEED_ATTR(current_speed, speed); static USB_UDC_SPEED_ATTR(maximum_speed, max_speed); @@ -428,6 +497,7 @@ static USB_UDC_ATTR(a_alt_hnp_support); static struct attribute *usb_udc_attrs[] = { &dev_attr_srp.attr, &dev_attr_soft_connect.attr, + &dev_attr_state.attr, &dev_attr_current_speed.attr, &dev_attr_maximum_speed.attr, diff --git a/drivers/usb/gadget/uvc.h b/drivers/usb/gadget/uvc.h index 93b0c1191115..817e9e19cecf 100644 --- a/drivers/usb/gadget/uvc.h +++ b/drivers/usb/gadget/uvc.h @@ -98,8 +98,6 @@ extern unsigned int uvc_gadget_trace_param; #define DRIVER_VERSION "0.1.0" #define DRIVER_VERSION_NUMBER KERNEL_VERSION(0, 1, 0) -#define DMA_ADDR_INVALID (~(dma_addr_t)0) - #define UVC_NUM_REQUESTS 4 #define UVC_MAX_REQUEST_SIZE 64 #define UVC_MAX_EVENTS 4 @@ -190,6 +188,7 @@ struct uvc_file_handle * Functions */ +extern void uvc_function_setup_continue(struct uvc_device *uvc); extern void uvc_endpoint_stream(struct uvc_device *dev); extern void uvc_function_connect(struct uvc_device *uvc); diff --git a/drivers/usb/gadget/uvc_queue.c b/drivers/usb/gadget/uvc_queue.c index 104ae9c81251..7ce27e35550b 100644 --- a/drivers/usb/gadget/uvc_queue.c +++ b/drivers/usb/gadget/uvc_queue.c @@ -10,6 +10,7 @@ * (at your option) any later version. */ +#include <linux/atomic.h> #include <linux/kernel.h> #include <linux/mm.h> #include <linux/list.h> @@ -18,7 +19,8 @@ #include <linux/videodev2.h> #include <linux/vmalloc.h> #include <linux/wait.h> -#include <linux/atomic.h> + +#include <media/videobuf2-vmalloc.h> #include "uvc.h" @@ -28,330 +30,175 @@ * Video queues is initialized by uvc_queue_init(). The function performs * basic initialization of the uvc_video_queue struct and never fails. * - * Video buffer allocation and freeing are performed by uvc_alloc_buffers and - * uvc_free_buffers respectively. The former acquires the video queue lock, - * while the later must be called with the lock held (so that allocation can - * free previously allocated buffers). Trying to free buffers that are mapped - * to user space will return -EBUSY. - * - * Video buffers are managed using two queues. However, unlike most USB video - * drivers that use an in queue and an out queue, we use a main queue to hold - * all queued buffers (both 'empty' and 'done' buffers), and an irq queue to - * hold empty buffers. This design (copied from video-buf) minimizes locking - * in interrupt, as only one queue is shared between interrupt and user - * contexts. - * - * Use cases - * --------- - * - * Unless stated otherwise, all operations that modify the irq buffers queue - * are protected by the irq spinlock. - * - * 1. The user queues the buffers, starts streaming and dequeues a buffer. - * - * The buffers are added to the main and irq queues. Both operations are - * protected by the queue lock, and the later is protected by the irq - * spinlock as well. - * - * The completion handler fetches a buffer from the irq queue and fills it - * with video data. If no buffer is available (irq queue empty), the handler - * returns immediately. - * - * When the buffer is full, the completion handler removes it from the irq - * queue, marks it as ready (UVC_BUF_STATE_DONE) and wakes its wait queue. - * At that point, any process waiting on the buffer will be woken up. If a - * process tries to dequeue a buffer after it has been marked ready, the - * dequeing will succeed immediately. - * - * 2. Buffers are queued, user is waiting on a buffer and the device gets - * disconnected. - * - * When the device is disconnected, the kernel calls the completion handler - * with an appropriate status code. The handler marks all buffers in the - * irq queue as being erroneous (UVC_BUF_STATE_ERROR) and wakes them up so - * that any process waiting on a buffer gets woken up. - * - * Waking up up the first buffer on the irq list is not enough, as the - * process waiting on the buffer might restart the dequeue operation - * immediately. - * + * Video buffers are managed by videobuf2. The driver uses a mutex to protect + * the videobuf2 queue operations by serializing calls to videobuf2 and a + * spinlock to protect the IRQ queue that holds the buffers to be processed by + * the driver. */ -static void -uvc_queue_init(struct uvc_video_queue *queue, enum v4l2_buf_type type) -{ - mutex_init(&queue->mutex); - spin_lock_init(&queue->irqlock); - INIT_LIST_HEAD(&queue->mainqueue); - INIT_LIST_HEAD(&queue->irqqueue); - queue->type = type; -} - -/* - * Free the video buffers. - * - * This function must be called with the queue lock held. +/* ----------------------------------------------------------------------------- + * videobuf2 queue operations */ -static int uvc_free_buffers(struct uvc_video_queue *queue) + +static int uvc_queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt, + unsigned int *nbuffers, unsigned int *nplanes, + unsigned int sizes[], void *alloc_ctxs[]) { - unsigned int i; + struct uvc_video_queue *queue = vb2_get_drv_priv(vq); + struct uvc_video *video = container_of(queue, struct uvc_video, queue); - for (i = 0; i < queue->count; ++i) { - if (queue->buffer[i].vma_use_count != 0) - return -EBUSY; - } + if (*nbuffers > UVC_MAX_VIDEO_BUFFERS) + *nbuffers = UVC_MAX_VIDEO_BUFFERS; - if (queue->count) { - vfree(queue->mem); - queue->count = 0; - } + *nplanes = 1; + + sizes[0] = video->imagesize; return 0; } -/* - * Allocate the video buffers. - * - * Pages are reserved to make sure they will not be swapped, as they will be - * filled in the URB completion handler. - * - * Buffers will be individually mapped, so they must all be page aligned. - */ -static int -uvc_alloc_buffers(struct uvc_video_queue *queue, unsigned int nbuffers, - unsigned int buflength) +static int uvc_buffer_prepare(struct vb2_buffer *vb) { - unsigned int bufsize = PAGE_ALIGN(buflength); - unsigned int i; - void *mem = NULL; - int ret; + struct uvc_video_queue *queue = vb2_get_drv_priv(vb->vb2_queue); + struct uvc_buffer *buf = container_of(vb, struct uvc_buffer, buf); - if (nbuffers > UVC_MAX_VIDEO_BUFFERS) - nbuffers = UVC_MAX_VIDEO_BUFFERS; + if (vb->v4l2_buf.type == V4L2_BUF_TYPE_VIDEO_OUTPUT && + vb2_get_plane_payload(vb, 0) > vb2_plane_size(vb, 0)) { + uvc_trace(UVC_TRACE_CAPTURE, "[E] Bytes used out of bounds.\n"); + return -EINVAL; + } - mutex_lock(&queue->mutex); + if (unlikely(queue->flags & UVC_QUEUE_DISCONNECTED)) + return -ENODEV; - if ((ret = uvc_free_buffers(queue)) < 0) - goto done; + buf->state = UVC_BUF_STATE_QUEUED; + buf->mem = vb2_plane_vaddr(vb, 0); + buf->length = vb2_plane_size(vb, 0); + if (vb->v4l2_buf.type == V4L2_BUF_TYPE_VIDEO_CAPTURE) + buf->bytesused = 0; + else + buf->bytesused = vb2_get_plane_payload(vb, 0); - /* Bail out if no buffers should be allocated. */ - if (nbuffers == 0) - goto done; + return 0; +} - /* Decrement the number of buffers until allocation succeeds. */ - for (; nbuffers > 0; --nbuffers) { - mem = vmalloc_32(nbuffers * bufsize); - if (mem != NULL) - break; - } +static void uvc_buffer_queue(struct vb2_buffer *vb) +{ + struct uvc_video_queue *queue = vb2_get_drv_priv(vb->vb2_queue); + struct uvc_buffer *buf = container_of(vb, struct uvc_buffer, buf); + unsigned long flags; - if (mem == NULL) { - ret = -ENOMEM; - goto done; - } + spin_lock_irqsave(&queue->irqlock, flags); - for (i = 0; i < nbuffers; ++i) { - memset(&queue->buffer[i], 0, sizeof queue->buffer[i]); - queue->buffer[i].buf.index = i; - queue->buffer[i].buf.m.offset = i * bufsize; - queue->buffer[i].buf.length = buflength; - queue->buffer[i].buf.type = queue->type; - queue->buffer[i].buf.sequence = 0; - queue->buffer[i].buf.field = V4L2_FIELD_NONE; - queue->buffer[i].buf.memory = V4L2_MEMORY_MMAP; - queue->buffer[i].buf.flags = 0; - init_waitqueue_head(&queue->buffer[i].wait); + if (likely(!(queue->flags & UVC_QUEUE_DISCONNECTED))) { + list_add_tail(&buf->queue, &queue->irqqueue); + } else { + /* If the device is disconnected return the buffer to userspace + * directly. The next QBUF call will fail with -ENODEV. + */ + buf->state = UVC_BUF_STATE_ERROR; + vb2_buffer_done(&buf->buf, VB2_BUF_STATE_ERROR); } - queue->mem = mem; - queue->count = nbuffers; - queue->buf_size = bufsize; - ret = nbuffers; - -done: - mutex_unlock(&queue->mutex); - return ret; + spin_unlock_irqrestore(&queue->irqlock, flags); } -static void __uvc_query_buffer(struct uvc_buffer *buf, - struct v4l2_buffer *v4l2_buf) -{ - memcpy(v4l2_buf, &buf->buf, sizeof *v4l2_buf); - - if (buf->vma_use_count) - v4l2_buf->flags |= V4L2_BUF_FLAG_MAPPED; - - switch (buf->state) { - case UVC_BUF_STATE_ERROR: - case UVC_BUF_STATE_DONE: - v4l2_buf->flags |= V4L2_BUF_FLAG_DONE; - break; - case UVC_BUF_STATE_QUEUED: - case UVC_BUF_STATE_ACTIVE: - v4l2_buf->flags |= V4L2_BUF_FLAG_QUEUED; - break; - case UVC_BUF_STATE_IDLE: - default: - break; - } -} +static struct vb2_ops uvc_queue_qops = { + .queue_setup = uvc_queue_setup, + .buf_prepare = uvc_buffer_prepare, + .buf_queue = uvc_buffer_queue, +}; -static int -uvc_query_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *v4l2_buf) +static int uvc_queue_init(struct uvc_video_queue *queue, + enum v4l2_buf_type type) { - int ret = 0; + int ret; - mutex_lock(&queue->mutex); - if (v4l2_buf->index >= queue->count) { - ret = -EINVAL; - goto done; - } + queue->queue.type = type; + queue->queue.io_modes = VB2_MMAP | VB2_USERPTR; + queue->queue.drv_priv = queue; + queue->queue.buf_struct_size = sizeof(struct uvc_buffer); + queue->queue.ops = &uvc_queue_qops; + queue->queue.mem_ops = &vb2_vmalloc_memops; + ret = vb2_queue_init(&queue->queue); + if (ret) + return ret; + + mutex_init(&queue->mutex); + spin_lock_init(&queue->irqlock); + INIT_LIST_HEAD(&queue->irqqueue); + queue->flags = 0; - __uvc_query_buffer(&queue->buffer[v4l2_buf->index], v4l2_buf); + return 0; +} -done: +/* + * Free the video buffers. + */ +static void uvc_free_buffers(struct uvc_video_queue *queue) +{ + mutex_lock(&queue->mutex); + vb2_queue_release(&queue->queue); mutex_unlock(&queue->mutex); - return ret; } /* - * Queue a video buffer. Attempting to queue a buffer that has already been - * queued will return -EINVAL. + * Allocate the video buffers. */ -static int -uvc_queue_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *v4l2_buf) +static int uvc_alloc_buffers(struct uvc_video_queue *queue, + struct v4l2_requestbuffers *rb) { - struct uvc_buffer *buf; - unsigned long flags; - int ret = 0; + int ret; - uvc_trace(UVC_TRACE_CAPTURE, "Queuing buffer %u.\n", v4l2_buf->index); + mutex_lock(&queue->mutex); + ret = vb2_reqbufs(&queue->queue, rb); + mutex_unlock(&queue->mutex); - if (v4l2_buf->type != queue->type || - v4l2_buf->memory != V4L2_MEMORY_MMAP) { - uvc_trace(UVC_TRACE_CAPTURE, "[E] Invalid buffer type (%u) " - "and/or memory (%u).\n", v4l2_buf->type, - v4l2_buf->memory); - return -EINVAL; - } + return ret ? ret : rb->count; +} - mutex_lock(&queue->mutex); - if (v4l2_buf->index >= queue->count) { - uvc_trace(UVC_TRACE_CAPTURE, "[E] Out of range index.\n"); - ret = -EINVAL; - goto done; - } +static int uvc_query_buffer(struct uvc_video_queue *queue, + struct v4l2_buffer *buf) +{ + int ret; - buf = &queue->buffer[v4l2_buf->index]; - if (buf->state != UVC_BUF_STATE_IDLE) { - uvc_trace(UVC_TRACE_CAPTURE, "[E] Invalid buffer state " - "(%u).\n", buf->state); - ret = -EINVAL; - goto done; - } + mutex_lock(&queue->mutex); + ret = vb2_querybuf(&queue->queue, buf); + mutex_unlock(&queue->mutex); - if (v4l2_buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT && - v4l2_buf->bytesused > buf->buf.length) { - uvc_trace(UVC_TRACE_CAPTURE, "[E] Bytes used out of bounds.\n"); - ret = -EINVAL; - goto done; - } + return ret; +} - if (v4l2_buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) - buf->buf.bytesused = 0; - else - buf->buf.bytesused = v4l2_buf->bytesused; +static int uvc_queue_buffer(struct uvc_video_queue *queue, + struct v4l2_buffer *buf) +{ + unsigned long flags; + int ret; + mutex_lock(&queue->mutex); + ret = vb2_qbuf(&queue->queue, buf); spin_lock_irqsave(&queue->irqlock, flags); - if (queue->flags & UVC_QUEUE_DISCONNECTED) { - spin_unlock_irqrestore(&queue->irqlock, flags); - ret = -ENODEV; - goto done; - } - buf->state = UVC_BUF_STATE_QUEUED; - ret = (queue->flags & UVC_QUEUE_PAUSED) != 0; queue->flags &= ~UVC_QUEUE_PAUSED; - - list_add_tail(&buf->stream, &queue->mainqueue); - list_add_tail(&buf->queue, &queue->irqqueue); spin_unlock_irqrestore(&queue->irqlock, flags); - -done: mutex_unlock(&queue->mutex); - return ret; -} -static int uvc_queue_waiton(struct uvc_buffer *buf, int nonblocking) -{ - if (nonblocking) { - return (buf->state != UVC_BUF_STATE_QUEUED && - buf->state != UVC_BUF_STATE_ACTIVE) - ? 0 : -EAGAIN; - } - - return wait_event_interruptible(buf->wait, - buf->state != UVC_BUF_STATE_QUEUED && - buf->state != UVC_BUF_STATE_ACTIVE); + return ret; } /* * Dequeue a video buffer. If nonblocking is false, block until a buffer is * available. */ -static int -uvc_dequeue_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *v4l2_buf, - int nonblocking) +static int uvc_dequeue_buffer(struct uvc_video_queue *queue, + struct v4l2_buffer *buf, int nonblocking) { - struct uvc_buffer *buf; - int ret = 0; - - if (v4l2_buf->type != queue->type || - v4l2_buf->memory != V4L2_MEMORY_MMAP) { - uvc_trace(UVC_TRACE_CAPTURE, "[E] Invalid buffer type (%u) " - "and/or memory (%u).\n", v4l2_buf->type, - v4l2_buf->memory); - return -EINVAL; - } + int ret; mutex_lock(&queue->mutex); - if (list_empty(&queue->mainqueue)) { - uvc_trace(UVC_TRACE_CAPTURE, "[E] Empty buffer queue.\n"); - ret = -EINVAL; - goto done; - } - - buf = list_first_entry(&queue->mainqueue, struct uvc_buffer, stream); - if ((ret = uvc_queue_waiton(buf, nonblocking)) < 0) - goto done; - - uvc_trace(UVC_TRACE_CAPTURE, "Dequeuing buffer %u (%u, %u bytes).\n", - buf->buf.index, buf->state, buf->buf.bytesused); - - switch (buf->state) { - case UVC_BUF_STATE_ERROR: - uvc_trace(UVC_TRACE_CAPTURE, "[W] Corrupted data " - "(transmission error).\n"); - ret = -EIO; - case UVC_BUF_STATE_DONE: - buf->state = UVC_BUF_STATE_IDLE; - break; - - case UVC_BUF_STATE_IDLE: - case UVC_BUF_STATE_QUEUED: - case UVC_BUF_STATE_ACTIVE: - default: - uvc_trace(UVC_TRACE_CAPTURE, "[E] Invalid buffer state %u " - "(driver bug?).\n", buf->state); - ret = -EINVAL; - goto done; - } - - list_del(&buf->stream); - __uvc_query_buffer(buf, v4l2_buf); - -done: + ret = vb2_dqbuf(&queue->queue, buf, nonblocking); mutex_unlock(&queue->mutex); + return ret; } @@ -361,105 +208,47 @@ done: * This function implements video queue polling and is intended to be used by * the device poll handler. */ -static unsigned int -uvc_queue_poll(struct uvc_video_queue *queue, struct file *file, - poll_table *wait) +static unsigned int uvc_queue_poll(struct uvc_video_queue *queue, + struct file *file, poll_table *wait) { - struct uvc_buffer *buf; - unsigned int mask = 0; + unsigned int ret; mutex_lock(&queue->mutex); - if (list_empty(&queue->mainqueue)) - goto done; - - buf = list_first_entry(&queue->mainqueue, struct uvc_buffer, stream); - - poll_wait(file, &buf->wait, wait); - if (buf->state == UVC_BUF_STATE_DONE || - buf->state == UVC_BUF_STATE_ERROR) - mask |= POLLOUT | POLLWRNORM; - -done: + ret = vb2_poll(&queue->queue, file, wait); mutex_unlock(&queue->mutex); - return mask; -} -/* - * VMA operations. - */ -static void uvc_vm_open(struct vm_area_struct *vma) -{ - struct uvc_buffer *buffer = vma->vm_private_data; - buffer->vma_use_count++; + return ret; } -static void uvc_vm_close(struct vm_area_struct *vma) +static int uvc_queue_mmap(struct uvc_video_queue *queue, + struct vm_area_struct *vma) { - struct uvc_buffer *buffer = vma->vm_private_data; - buffer->vma_use_count--; -} + int ret; -static struct vm_operations_struct uvc_vm_ops = { - .open = uvc_vm_open, - .close = uvc_vm_close, -}; + mutex_lock(&queue->mutex); + ret = vb2_mmap(&queue->queue, vma); + mutex_unlock(&queue->mutex); + + return ret; +} +#ifndef CONFIG_MMU /* - * Memory-map a buffer. + * Get unmapped area. * - * This function implements video buffer memory mapping and is intended to be - * used by the device mmap handler. + * NO-MMU arch need this function to make mmap() work correctly. */ -static int -uvc_queue_mmap(struct uvc_video_queue *queue, struct vm_area_struct *vma) +static unsigned long uvc_queue_get_unmapped_area(struct uvc_video_queue *queue, + unsigned long pgoff) { - struct uvc_buffer *uninitialized_var(buffer); - struct page *page; - unsigned long addr, start, size; - unsigned int i; - int ret = 0; - - start = vma->vm_start; - size = vma->vm_end - vma->vm_start; + unsigned long ret; mutex_lock(&queue->mutex); - - for (i = 0; i < queue->count; ++i) { - buffer = &queue->buffer[i]; - if ((buffer->buf.m.offset >> PAGE_SHIFT) == vma->vm_pgoff) - break; - } - - if (i == queue->count || size != queue->buf_size) { - ret = -EINVAL; - goto done; - } - - /* - * VM_IO marks the area as being an mmaped region for I/O to a - * device. It also prevents the region from being core dumped. - */ - vma->vm_flags |= VM_IO; - - addr = (unsigned long)queue->mem + buffer->buf.m.offset; - while (size > 0) { - page = vmalloc_to_page((void *)addr); - if ((ret = vm_insert_page(vma, start, page)) < 0) - goto done; - - start += PAGE_SIZE; - addr += PAGE_SIZE; - size -= PAGE_SIZE; - } - - vma->vm_ops = &uvc_vm_ops; - vma->vm_private_data = buffer; - uvc_vm_open(vma); - -done: + ret = vb2_get_unmapped_area(&queue->queue, 0, 0, pgoff, 0); mutex_unlock(&queue->mutex); return ret; } +#endif /* * Cancel the video buffers queue. @@ -484,7 +273,7 @@ static void uvc_queue_cancel(struct uvc_video_queue *queue, int disconnect) queue); list_del(&buf->queue); buf->state = UVC_BUF_STATE_ERROR; - wake_up(&buf->wait); + vb2_buffer_done(&buf->buf, VB2_BUF_STATE_ERROR); } /* This must be protected by the irqlock spinlock to avoid race * conditions between uvc_queue_buffer and the disconnection event that @@ -516,26 +305,33 @@ static void uvc_queue_cancel(struct uvc_video_queue *queue, int disconnect) */ static int uvc_queue_enable(struct uvc_video_queue *queue, int enable) { - unsigned int i; + unsigned long flags; int ret = 0; mutex_lock(&queue->mutex); if (enable) { - if (uvc_queue_streaming(queue)) { - ret = -EBUSY; + ret = vb2_streamon(&queue->queue, queue->queue.type); + if (ret < 0) goto done; - } + queue->sequence = 0; - queue->flags |= UVC_QUEUE_STREAMING; queue->buf_used = 0; } else { - uvc_queue_cancel(queue, 0); - INIT_LIST_HEAD(&queue->mainqueue); + ret = vb2_streamoff(&queue->queue, queue->queue.type); + if (ret < 0) + goto done; - for (i = 0; i < queue->count; ++i) - queue->buffer[i].state = UVC_BUF_STATE_IDLE; + spin_lock_irqsave(&queue->irqlock, flags); + INIT_LIST_HEAD(&queue->irqqueue); - queue->flags &= ~UVC_QUEUE_STREAMING; + /* + * FIXME: We need to clear the DISCONNECTED flag to ensure that + * applications will be able to queue buffers for the next + * streaming run. However, clearing it here doesn't guarantee + * that the device will be reconnected in the meantime. + */ + queue->flags &= ~UVC_QUEUE_DISCONNECTED; + spin_unlock_irqrestore(&queue->irqlock, flags); } done: @@ -544,15 +340,15 @@ done: } /* called with &queue_irqlock held.. */ -static struct uvc_buffer * -uvc_queue_next_buffer(struct uvc_video_queue *queue, struct uvc_buffer *buf) +static struct uvc_buffer *uvc_queue_next_buffer(struct uvc_video_queue *queue, + struct uvc_buffer *buf) { struct uvc_buffer *nextbuf; if ((queue->flags & UVC_QUEUE_DROP_INCOMPLETE) && - buf->buf.length != buf->buf.bytesused) { + buf->length != buf->bytesused) { buf->state = UVC_BUF_STATE_QUEUED; - buf->buf.bytesused = 0; + vb2_set_plane_payload(&buf->buf, 0, 0); return buf; } @@ -563,10 +359,18 @@ uvc_queue_next_buffer(struct uvc_video_queue *queue, struct uvc_buffer *buf) else nextbuf = NULL; - buf->buf.sequence = queue->sequence++; - do_gettimeofday(&buf->buf.timestamp); + /* + * FIXME: with videobuf2, the sequence number or timestamp fields + * are valid only for video capture devices and the UVC gadget usually + * is a video output device. Keeping these until the specs are clear on + * this aspect. + */ + buf->buf.v4l2_buf.sequence = queue->sequence++; + do_gettimeofday(&buf->buf.v4l2_buf.timestamp); + + vb2_set_plane_payload(&buf->buf, 0, buf->bytesused); + vb2_buffer_done(&buf->buf, VB2_BUF_STATE_DONE); - wake_up(&buf->wait); return nextbuf; } diff --git a/drivers/usb/gadget/uvc_queue.h b/drivers/usb/gadget/uvc_queue.h index 1812a8ecc5d0..8e76ce982f1e 100644 --- a/drivers/usb/gadget/uvc_queue.h +++ b/drivers/usb/gadget/uvc_queue.h @@ -6,6 +6,7 @@ #include <linux/kernel.h> #include <linux/poll.h> #include <linux/videodev2.h> +#include <media/videobuf2-core.h> /* Maximum frame size in bytes, for sanity checking. */ #define UVC_MAX_FRAME_SIZE (16*1024*1024) @@ -25,42 +26,35 @@ enum uvc_buffer_state { }; struct uvc_buffer { - unsigned long vma_use_count; - struct list_head stream; - - /* Touched by interrupt handler. */ - struct v4l2_buffer buf; + struct vb2_buffer buf; struct list_head queue; - wait_queue_head_t wait; + enum uvc_buffer_state state; + void *mem; + unsigned int length; + unsigned int bytesused; }; -#define UVC_QUEUE_STREAMING (1 << 0) -#define UVC_QUEUE_DISCONNECTED (1 << 1) -#define UVC_QUEUE_DROP_INCOMPLETE (1 << 2) -#define UVC_QUEUE_PAUSED (1 << 3) +#define UVC_QUEUE_DISCONNECTED (1 << 0) +#define UVC_QUEUE_DROP_INCOMPLETE (1 << 1) +#define UVC_QUEUE_PAUSED (1 << 2) struct uvc_video_queue { - enum v4l2_buf_type type; + struct vb2_queue queue; + struct mutex mutex; /* Protects queue */ - void *mem; unsigned int flags; __u32 sequence; - unsigned int count; - unsigned int buf_size; unsigned int buf_used; - struct uvc_buffer buffer[UVC_MAX_VIDEO_BUFFERS]; - struct mutex mutex; /* protects buffers and mainqueue */ - spinlock_t irqlock; /* protects irqqueue */ - struct list_head mainqueue; + spinlock_t irqlock; /* Protects flags and irqqueue */ struct list_head irqqueue; }; static inline int uvc_queue_streaming(struct uvc_video_queue *queue) { - return queue->flags & UVC_QUEUE_STREAMING; + return vb2_is_streaming(&queue->queue); } #endif /* __KERNEL__ */ diff --git a/drivers/usb/gadget/uvc_v4l2.c b/drivers/usb/gadget/uvc_v4l2.c index 2ca9386d655b..ad48e81155e2 100644 --- a/drivers/usb/gadget/uvc_v4l2.c +++ b/drivers/usb/gadget/uvc_v4l2.c @@ -41,9 +41,8 @@ uvc_send_response(struct uvc_device *uvc, struct uvc_request_data *data) req->length = min_t(unsigned int, uvc->event_length, data->length); req->zero = data->length < uvc->event_length; - req->dma = DMA_ADDR_INVALID; - memcpy(req->buf, data->data, data->length); + memcpy(req->buf, data->data, req->length); return usb_ep_queue(cdev->gadget->ep0, req, GFP_KERNEL); } @@ -148,16 +147,13 @@ uvc_v4l2_release(struct file *file) uvc_function_disconnect(uvc); uvc_video_enable(video, 0); - mutex_lock(&video->queue.mutex); - if (uvc_free_buffers(&video->queue) < 0) - printk(KERN_ERR "uvc_v4l2_release: Unable to free " - "buffers.\n"); - mutex_unlock(&video->queue.mutex); + uvc_free_buffers(&video->queue); file->private_data = NULL; v4l2_fh_del(&handle->vfh); v4l2_fh_exit(&handle->vfh); kfree(handle); + return 0; } @@ -178,9 +174,9 @@ uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) struct v4l2_capability *cap = arg; memset(cap, 0, sizeof *cap); - strncpy(cap->driver, "g_uvc", sizeof(cap->driver)); - strncpy(cap->card, cdev->gadget->name, sizeof(cap->card)); - strncpy(cap->bus_info, dev_name(&cdev->gadget->dev), + strlcpy(cap->driver, "g_uvc", sizeof(cap->driver)); + strlcpy(cap->card, cdev->gadget->name, sizeof(cap->card)); + strlcpy(cap->bus_info, dev_name(&cdev->gadget->dev), sizeof cap->bus_info); cap->version = DRIVER_VERSION_NUMBER; cap->capabilities = V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_STREAMING; @@ -192,7 +188,7 @@ uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) { struct v4l2_format *fmt = arg; - if (fmt->type != video->queue.type) + if (fmt->type != video->queue.queue.type) return -EINVAL; return uvc_v4l2_get_format(video, fmt); @@ -202,7 +198,7 @@ uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) { struct v4l2_format *fmt = arg; - if (fmt->type != video->queue.type) + if (fmt->type != video->queue.queue.type) return -EINVAL; return uvc_v4l2_set_format(video, fmt); @@ -213,16 +209,13 @@ uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) { struct v4l2_requestbuffers *rb = arg; - if (rb->type != video->queue.type || - rb->memory != V4L2_MEMORY_MMAP) + if (rb->type != video->queue.queue.type) return -EINVAL; - ret = uvc_alloc_buffers(&video->queue, rb->count, - video->imagesize); + ret = uvc_alloc_buffers(&video->queue, rb); if (ret < 0) return ret; - rb->count = ret; ret = 0; break; } @@ -231,9 +224,6 @@ uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) { struct v4l2_buffer *buf = arg; - if (buf->type != video->queue.type) - return -EINVAL; - return uvc_query_buffer(&video->queue, buf); } @@ -251,24 +241,36 @@ uvc_v4l2_do_ioctl(struct file *file, unsigned int cmd, void *arg) { int *type = arg; - if (*type != video->queue.type) + if (*type != video->queue.queue.type) return -EINVAL; - return uvc_video_enable(video, 1); + /* Enable UVC video. */ + ret = uvc_video_enable(video, 1); + if (ret < 0) + return ret; + + /* + * Complete the alternate setting selection setup phase now that + * userspace is ready to provide video frames. + */ + uvc_function_setup_continue(uvc); + uvc->state = UVC_STATE_STREAMING; + + return 0; } case VIDIOC_STREAMOFF: { int *type = arg; - if (*type != video->queue.type) + if (*type != video->queue.queue.type) return -EINVAL; return uvc_video_enable(video, 0); } /* Events */ - case VIDIOC_DQEVENT: + case VIDIOC_DQEVENT: { struct v4l2_event *event = arg; @@ -333,17 +335,21 @@ uvc_v4l2_poll(struct file *file, poll_table *wait) { struct video_device *vdev = video_devdata(file); struct uvc_device *uvc = video_get_drvdata(vdev); - struct uvc_file_handle *handle = to_uvc_file_handle(file->private_data); - unsigned int mask = 0; - poll_wait(file, &handle->vfh.wait, wait); - if (v4l2_event_pending(&handle->vfh)) - mask |= POLLPRI; + return uvc_queue_poll(&uvc->video.queue, file, wait); +} - mask |= uvc_queue_poll(&uvc->video.queue, file, wait); +#ifndef CONFIG_MMU +static unsigned long uvc_v4l2_get_unmapped_area(struct file *file, + unsigned long addr, unsigned long len, unsigned long pgoff, + unsigned long flags) +{ + struct video_device *vdev = video_devdata(file); + struct uvc_device *uvc = video_get_drvdata(vdev); - return mask; + return uvc_queue_get_unmapped_area(&uvc->video.queue, pgoff); } +#endif static struct v4l2_file_operations uvc_v4l2_fops = { .owner = THIS_MODULE, @@ -352,5 +358,8 @@ static struct v4l2_file_operations uvc_v4l2_fops = { .ioctl = uvc_v4l2_ioctl, .mmap = uvc_v4l2_mmap, .poll = uvc_v4l2_poll, +#ifndef CONFIG_MMU + .get_unmapped_area = uvc_v4l2_get_unmapped_area, +#endif }; diff --git a/drivers/usb/gadget/uvc_video.c b/drivers/usb/gadget/uvc_video.c index b0e53a8ea4f7..71e896d4c5ae 100644 --- a/drivers/usb/gadget/uvc_video.c +++ b/drivers/usb/gadget/uvc_video.c @@ -32,7 +32,7 @@ uvc_video_encode_header(struct uvc_video *video, struct uvc_buffer *buf, data[0] = 2; data[1] = UVC_STREAM_EOH | video->fid; - if (buf->buf.bytesused - video->queue.buf_used <= len - 2) + if (buf->bytesused - video->queue.buf_used <= len - 2) data[1] |= UVC_STREAM_EOF; return 2; @@ -47,8 +47,8 @@ uvc_video_encode_data(struct uvc_video *video, struct uvc_buffer *buf, void *mem; /* Copy video data to the USB buffer. */ - mem = queue->mem + buf->buf.m.offset + queue->buf_used; - nbytes = min((unsigned int)len, buf->buf.bytesused - queue->buf_used); + mem = buf->mem + queue->buf_used; + nbytes = min((unsigned int)len, buf->bytesused - queue->buf_used); memcpy(data, mem, nbytes); queue->buf_used += nbytes; @@ -82,7 +82,7 @@ uvc_video_encode_bulk(struct usb_request *req, struct uvc_video *video, req->length = video->req_size - len; req->zero = video->payload_size == video->max_payload_size; - if (buf->buf.bytesused == video->queue.buf_used) { + if (buf->bytesused == video->queue.buf_used) { video->queue.buf_used = 0; buf->state = UVC_BUF_STATE_DONE; uvc_queue_next_buffer(&video->queue, buf); @@ -92,7 +92,7 @@ uvc_video_encode_bulk(struct usb_request *req, struct uvc_video *video, } if (video->payload_size == video->max_payload_size || - buf->buf.bytesused == video->queue.buf_used) + buf->bytesused == video->queue.buf_used) video->payload_size = 0; } @@ -115,7 +115,7 @@ uvc_video_encode_isoc(struct usb_request *req, struct uvc_video *video, req->length = video->req_size - len; - if (buf->buf.bytesused == video->queue.buf_used) { + if (buf->bytesused == video->queue.buf_used) { video->queue.buf_used = 0; buf->state = UVC_BUF_STATE_DONE; uvc_queue_next_buffer(&video->queue, buf); @@ -161,6 +161,7 @@ static void uvc_video_complete(struct usb_ep *ep, struct usb_request *req) { struct uvc_video *video = req->context; + struct uvc_video_queue *queue = &video->queue; struct uvc_buffer *buf; unsigned long flags; int ret; @@ -169,13 +170,15 @@ uvc_video_complete(struct usb_ep *ep, struct usb_request *req) case 0: break; - case -ESHUTDOWN: + case -ESHUTDOWN: /* disconnect from host. */ printk(KERN_INFO "VS request cancelled.\n"); + uvc_queue_cancel(queue, 1); goto requeue; default: printk(KERN_INFO "VS request completed with status %d.\n", req->status); + uvc_queue_cancel(queue, 0); goto requeue; } @@ -229,13 +232,18 @@ uvc_video_free_requests(struct uvc_video *video) static int uvc_video_alloc_requests(struct uvc_video *video) { + unsigned int req_size; unsigned int i; int ret = -ENOMEM; BUG_ON(video->req_size); + req_size = video->ep->maxpacket + * max_t(unsigned int, video->ep->maxburst, 1) + * (video->ep->mult + 1); + for (i = 0; i < UVC_NUM_REQUESTS; ++i) { - video->req_buffer[i] = kmalloc(video->ep->maxpacket, GFP_KERNEL); + video->req_buffer[i] = kmalloc(req_size, GFP_KERNEL); if (video->req_buffer[i] == NULL) goto error; @@ -245,14 +253,14 @@ uvc_video_alloc_requests(struct uvc_video *video) video->req[i]->buf = video->req_buffer[i]; video->req[i]->length = 0; - video->req[i]->dma = DMA_ADDR_INVALID; video->req[i]->complete = uvc_video_complete; video->req[i]->context = video; list_add_tail(&video->req[i]->list, &video->req_free); } - video->req_size = video->ep->maxpacket; + video->req_size = req_size; + return 0; error: @@ -309,7 +317,8 @@ uvc_video_pump(struct uvc_video *video) video->encode(req, video, buf); /* Queue the USB request */ - if ((ret = usb_ep_queue(video->ep, req, GFP_KERNEL)) < 0) { + ret = usb_ep_queue(video->ep, req, GFP_ATOMIC); + if (ret < 0) { printk(KERN_INFO "Failed to queue request (%d)\n", ret); usb_ep_set_halt(video->ep); spin_unlock_irqrestore(&video->queue.irqlock, flags); diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index 2f682219e257..f7af0984743b 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -180,6 +180,7 @@ config USB_EHCI_TEGRA boolean "NVIDIA Tegra HCD support" depends on USB_EHCI_HCD && ARCH_TEGRA select USB_EHCI_ROOT_HUB_TT + select USB_PHY help This driver enables support for the internal USB Host Controllers found in NVIDIA Tegra SoCs. The controllers are EHCI compliant. @@ -301,7 +302,6 @@ config USB_OHCI_HCD tristate "OHCI HCD support" depends on USB && USB_ARCH_HAS_OHCI select ISP1301_OMAP if MACH_OMAP_H2 || MACH_OMAP_H3 - select USB_OTG_UTILS if ARCH_OMAP depends on USB_ISP1301 || !ARCH_LPC32XX ---help--- The Open Host Controller Interface (OHCI) is a standard for accessing diff --git a/drivers/usb/host/ehci-msm.c b/drivers/usb/host/ehci-msm.c index 88a49c87e748..ebf410311957 100644 --- a/drivers/usb/host/ehci-msm.c +++ b/drivers/usb/host/ehci-msm.c @@ -145,7 +145,7 @@ static int ehci_msm_probe(struct platform_device *pdev) * management. */ phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2); - if (IS_ERR_OR_NULL(phy)) { + if (IS_ERR(phy)) { dev_err(&pdev->dev, "unable to find transceiver\n"); ret = -ENODEV; goto put_hcd; diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c index 5cd9f96ed92d..402062973f03 100644 --- a/drivers/usb/host/ehci-mv.c +++ b/drivers/usb/host/ehci-mv.c @@ -33,25 +33,17 @@ struct ehci_hcd_mv { struct mv_usb_platform_data *pdata; - /* clock source and total clock number */ - unsigned int clknum; - struct clk *clk[0]; + struct clk *clk; }; static void ehci_clock_enable(struct ehci_hcd_mv *ehci_mv) { - unsigned int i; - - for (i = 0; i < ehci_mv->clknum; i++) - clk_prepare_enable(ehci_mv->clk[i]); + clk_prepare_enable(ehci_mv->clk); } static void ehci_clock_disable(struct ehci_hcd_mv *ehci_mv) { - unsigned int i; - - for (i = 0; i < ehci_mv->clknum; i++) - clk_disable_unprepare(ehci_mv->clk[i]); + clk_disable_unprepare(ehci_mv->clk); } static int mv_ehci_enable(struct ehci_hcd_mv *ehci_mv) @@ -144,9 +136,8 @@ static int mv_ehci_probe(struct platform_device *pdev) struct ehci_hcd *ehci; struct ehci_hcd_mv *ehci_mv; struct resource *r; - int clk_i, retval = -ENODEV; + int retval = -ENODEV; u32 offset; - size_t size; if (!pdata) { dev_err(&pdev->dev, "missing platform_data\n"); @@ -160,8 +151,7 @@ static int mv_ehci_probe(struct platform_device *pdev) if (!hcd) return -ENOMEM; - size = sizeof(*ehci_mv) + sizeof(struct clk *) * pdata->clknum; - ehci_mv = devm_kzalloc(&pdev->dev, size, GFP_KERNEL); + ehci_mv = devm_kzalloc(&pdev->dev, sizeof(*ehci_mv), GFP_KERNEL); if (ehci_mv == NULL) { dev_err(&pdev->dev, "cannot allocate ehci_hcd_mv\n"); retval = -ENOMEM; @@ -172,16 +162,11 @@ static int mv_ehci_probe(struct platform_device *pdev) ehci_mv->pdata = pdata; ehci_mv->hcd = hcd; - ehci_mv->clknum = pdata->clknum; - for (clk_i = 0; clk_i < ehci_mv->clknum; clk_i++) { - ehci_mv->clk[clk_i] = - devm_clk_get(&pdev->dev, pdata->clkname[clk_i]); - if (IS_ERR(ehci_mv->clk[clk_i])) { - dev_err(&pdev->dev, "error get clck \"%s\"\n", - pdata->clkname[clk_i]); - retval = PTR_ERR(ehci_mv->clk[clk_i]); - goto err_clear_drvdata; - } + ehci_mv->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(ehci_mv->clk)) { + dev_err(&pdev->dev, "error getting clock\n"); + retval = PTR_ERR(ehci_mv->clk); + goto err_clear_drvdata; } r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phyregs"); @@ -240,12 +225,16 @@ static int mv_ehci_probe(struct platform_device *pdev) ehci_mv->mode = pdata->mode; if (ehci_mv->mode == MV_USB_MODE_OTG) { -#ifdef CONFIG_USB_OTG_UTILS ehci_mv->otg = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2); - if (IS_ERR_OR_NULL(ehci_mv->otg)) { - dev_err(&pdev->dev, - "unable to find transceiver\n"); - retval = -ENODEV; + if (IS_ERR(ehci_mv->otg)) { + retval = PTR_ERR(ehci_mv->otg); + + if (retval == -ENXIO) + dev_info(&pdev->dev, "MV_USB_MODE_OTG " + "must have CONFIG_USB_PHY enabled\n"); + else + dev_err(&pdev->dev, + "unable to find transceiver\n"); goto err_disable_clk; } @@ -258,11 +247,6 @@ static int mv_ehci_probe(struct platform_device *pdev) } /* otg will enable clock before use as host */ mv_ehci_disable(ehci_mv); -#else - dev_info(&pdev->dev, "MV_USB_MODE_OTG " - "must have CONFIG_USB_OTG_UTILS enabled\n"); - goto err_disable_clk; -#endif } else { if (pdata->set_vbus) pdata->set_vbus(1); diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c index 738490e6d429..43a2a16732f5 100644 --- a/drivers/usb/host/ehci-s5p.c +++ b/drivers/usb/host/ehci-s5p.c @@ -140,7 +140,7 @@ static int s5p_ehci_probe(struct platform_device *pdev) return -ENOMEM; phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2); - if (IS_ERR_OR_NULL(phy)) { + if (IS_ERR(phy)) { /* Fallback to pdata */ if (!pdata) { dev_warn(&pdev->dev, "no platform data or transceiver defined\n"); diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 4f3cfb83f862..ed201ae879cb 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -773,16 +773,14 @@ static int tegra_ehci_probe(struct platform_device *pdev) goto fail_phy; } -#ifdef CONFIG_USB_OTG_UTILS if (pdata->operating_mode == TEGRA_USB_OTG) { tegra->transceiver = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2); - if (!IS_ERR_OR_NULL(tegra->transceiver)) + if (!IS_ERR(tegra->transceiver)) otg_set_host(tegra->transceiver->otg, &hcd->self); } else { tegra->transceiver = ERR_PTR(-ENODEV); } -#endif err = usb_add_hcd(hcd, irq, IRQF_SHARED); if (err) { @@ -801,10 +799,8 @@ static int tegra_ehci_probe(struct platform_device *pdev) return err; fail: -#ifdef CONFIG_USB_OTG_UTILS - if (!IS_ERR_OR_NULL(tegra->transceiver)) + if (!IS_ERR(tegra->transceiver)) otg_set_host(tegra->transceiver->otg, NULL); -#endif fail_phy: usb_phy_shutdown(hcd->phy); fail_io: @@ -823,10 +819,8 @@ static int tegra_ehci_remove(struct platform_device *pdev) pm_runtime_disable(&pdev->dev); pm_runtime_put_noidle(&pdev->dev); -#ifdef CONFIG_USB_OTG_UTILS - if (!IS_ERR_OR_NULL(tegra->transceiver)) + if (!IS_ERR(tegra->transceiver)) otg_set_host(tegra->transceiver->otg, NULL); -#endif usb_phy_shutdown(hcd->phy); usb_remove_hcd(hcd); diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c index e3b7e85120e4..4b469e050208 100644 --- a/drivers/usb/host/ohci-exynos.c +++ b/drivers/usb/host/ohci-exynos.c @@ -128,7 +128,7 @@ static int exynos_ohci_probe(struct platform_device *pdev) return -ENOMEM; phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2); - if (IS_ERR_OR_NULL(phy)) { + if (IS_ERR(phy)) { /* Fallback to pdata */ if (!pdata) { dev_warn(&pdev->dev, "no platform data or transceiver defined\n"); diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig index 05e51432dd2f..47442d35b6fc 100644 --- a/drivers/usb/musb/Kconfig +++ b/drivers/usb/musb/Kconfig @@ -7,7 +7,6 @@ config USB_MUSB_HDRC tristate 'Inventra Highspeed Dual Role Controller (TI, ADI, ...)' depends on USB && USB_GADGET - select USB_OTG_UTILS help Say Y here if your system has a dual role high speed USB controller based on the Mentor Graphics silicon IP. Then @@ -34,10 +33,12 @@ choice config USB_MUSB_DAVINCI tristate "DaVinci" depends on ARCH_DAVINCI_DMx + depends on BROKEN config USB_MUSB_DA8XX tristate "DA8xx/OMAP-L1x" depends on ARCH_DAVINCI_DA8XX + depends on BROKEN config USB_MUSB_TUSB6010 tristate "TUSB6010" @@ -53,7 +54,6 @@ config USB_MUSB_AM35X config USB_MUSB_DSPS tristate "TI DSPS platforms" - depends on SOC_TI81XX || SOC_AM33XX config USB_MUSB_BLACKFIN tristate "Blackfin" @@ -61,12 +61,12 @@ config USB_MUSB_BLACKFIN config USB_MUSB_UX500 tristate "U8500 and U5500" - depends on (ARCH_U8500 && AB8500_USB) endchoice choice prompt 'MUSB DMA mode' + default MUSB_PIO_ONLY if ARCH_MULTIPLATFORM default USB_UX500_DMA if USB_MUSB_UX500 default USB_INVENTRA_DMA if USB_MUSB_OMAP2PLUS || USB_MUSB_BLACKFIN default USB_TI_CPPI_DMA if USB_MUSB_DAVINCI diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c index 59eea219034a..2231850c0625 100644 --- a/drivers/usb/musb/am35x.c +++ b/drivers/usb/musb/am35x.c @@ -149,7 +149,7 @@ static void otg_timer(unsigned long _musb) */ devctl = musb_readb(mregs, MUSB_DEVCTL); dev_dbg(musb->controller, "Poll devctl %02x (%s)\n", devctl, - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); spin_lock_irqsave(&musb->lock, flags); switch (musb->xceiv->state) { @@ -195,7 +195,7 @@ static void am35x_musb_try_idle(struct musb *musb, unsigned long timeout) if (musb->is_active || (musb->a_wait_bcon == 0 && musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) { dev_dbg(musb->controller, "%s active, deleting timer\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); del_timer(&otg_workaround); last_timer = jiffies; return; @@ -208,7 +208,7 @@ static void am35x_musb_try_idle(struct musb *musb, unsigned long timeout) last_timer = timeout; dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n", - otg_state_string(musb->xceiv->state), + usb_otg_state_string(musb->xceiv->state), jiffies_to_msecs(timeout - jiffies)); mod_timer(&otg_workaround, timeout); } @@ -298,7 +298,7 @@ static irqreturn_t am35x_musb_interrupt(int irq, void *hci) /* NOTE: this must complete power-on within 100 ms. */ dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n", drvvbus ? "on" : "off", - otg_state_string(musb->xceiv->state), + usb_otg_state_string(musb->xceiv->state), err ? " ERROR" : "", devctl); ret = IRQ_HANDLED; diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c index dbb31b30c7fa..5e63b160db0c 100644 --- a/drivers/usb/musb/blackfin.c +++ b/drivers/usb/musb/blackfin.c @@ -280,13 +280,13 @@ static void musb_conn_timer_handler(unsigned long _musb) break; default: dev_dbg(musb->controller, "%s state not handled\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); break; } spin_unlock_irqrestore(&musb->lock, flags); dev_dbg(musb->controller, "state is %s\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); } static void bfin_musb_enable(struct musb *musb) @@ -307,7 +307,7 @@ static void bfin_musb_set_vbus(struct musb *musb, int is_on) dev_dbg(musb->controller, "VBUS %s, devctl %02x " /* otg %3x conf %08x prcm %08x */ "\n", - otg_state_string(musb->xceiv->state), + usb_otg_state_string(musb->xceiv->state), musb_readb(musb->mregs, MUSB_DEVCTL)); } diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c index f522000e8f06..9db211ee15b5 100644 --- a/drivers/usb/musb/cppi_dma.c +++ b/drivers/usb/musb/cppi_dma.c @@ -435,7 +435,6 @@ cppi_rndis_update(struct cppi_channel *c, int is_rx, } } -#ifdef CONFIG_USB_MUSB_DEBUG static void cppi_dump_rxbd(const char *tag, struct cppi_descriptor *bd) { pr_debug("RXBD/%s %08x: " @@ -444,21 +443,16 @@ static void cppi_dump_rxbd(const char *tag, struct cppi_descriptor *bd) bd->hw_next, bd->hw_bufp, bd->hw_off_len, bd->hw_options); } -#endif static void cppi_dump_rxq(int level, const char *tag, struct cppi_channel *rx) { -#ifdef CONFIG_USB_MUSB_DEBUG struct cppi_descriptor *bd; - if (!_dbg_level(level)) - return; cppi_dump_rx(level, rx, tag); if (rx->last_processed) cppi_dump_rxbd("last", rx->last_processed); for (bd = rx->head; bd; bd = bd->next) cppi_dump_rxbd("active", bd); -#endif } @@ -784,6 +778,7 @@ cppi_next_rx_segment(struct musb *musb, struct cppi_channel *rx, int onepacket) void __iomem *tibase = musb->ctrl_base; int is_rndis = 0; struct cppi_rx_stateram __iomem *rx_ram = rx->state_ram; + struct cppi_descriptor *d; if (onepacket) { /* almost every USB driver, host or peripheral side */ @@ -897,14 +892,8 @@ cppi_next_rx_segment(struct musb *musb, struct cppi_channel *rx, int onepacket) bd->hw_options |= CPPI_SOP_SET; tail->hw_options |= CPPI_EOP_SET; -#ifdef CONFIG_USB_MUSB_DEBUG - if (_dbg_level(5)) { - struct cppi_descriptor *d; - - for (d = rx->head; d; d = d->next) - cppi_dump_rxbd("S", d); - } -#endif + for (d = rx->head; d; d = d->next) + cppi_dump_rxbd("S", d); /* in case the preceding transfer left some state... */ tail = rx->last_processed; diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c index 41613a2b35e8..b903b744a224 100644 --- a/drivers/usb/musb/da8xx.c +++ b/drivers/usb/musb/da8xx.c @@ -198,7 +198,7 @@ static void otg_timer(unsigned long _musb) */ devctl = musb_readb(mregs, MUSB_DEVCTL); dev_dbg(musb->controller, "Poll devctl %02x (%s)\n", devctl, - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); spin_lock_irqsave(&musb->lock, flags); switch (musb->xceiv->state) { @@ -267,7 +267,7 @@ static void da8xx_musb_try_idle(struct musb *musb, unsigned long timeout) if (musb->is_active || (musb->a_wait_bcon == 0 && musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) { dev_dbg(musb->controller, "%s active, deleting timer\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); del_timer(&otg_workaround); last_timer = jiffies; return; @@ -280,7 +280,7 @@ static void da8xx_musb_try_idle(struct musb *musb, unsigned long timeout) last_timer = timeout; dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n", - otg_state_string(musb->xceiv->state), + usb_otg_state_string(musb->xceiv->state), jiffies_to_msecs(timeout - jiffies)); mod_timer(&otg_workaround, timeout); } @@ -360,7 +360,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci) dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n", drvvbus ? "on" : "off", - otg_state_string(musb->xceiv->state), + usb_otg_state_string(musb->xceiv->state), err ? " ERROR" : "", devctl); ret = IRQ_HANDLED; diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c index e040d9103735..bea6cc35471c 100644 --- a/drivers/usb/musb/davinci.c +++ b/drivers/usb/musb/davinci.c @@ -215,7 +215,7 @@ static void otg_timer(unsigned long _musb) */ devctl = musb_readb(mregs, MUSB_DEVCTL); dev_dbg(musb->controller, "poll devctl %02x (%s)\n", devctl, - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); spin_lock_irqsave(&musb->lock, flags); switch (musb->xceiv->state) { @@ -349,7 +349,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci) davinci_musb_source_power(musb, drvvbus, 0); dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n", drvvbus ? "on" : "off", - otg_state_string(musb->xceiv->state), + usb_otg_state_string(musb->xceiv->state), err ? " ERROR" : "", devctl); retval = IRQ_HANDLED; diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index daec6e0f7e38..37a261a6bb6a 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -372,13 +372,13 @@ static void musb_otg_timer_func(unsigned long data) case OTG_STATE_A_SUSPEND: case OTG_STATE_A_WAIT_BCON: dev_dbg(musb->controller, "HNP: %s timeout\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); musb_platform_set_vbus(musb, 0); musb->xceiv->state = OTG_STATE_A_WAIT_VFALL; break; default: dev_dbg(musb->controller, "HNP: Unhandled mode %s\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); } musb->ignore_disconnect = 0; spin_unlock_irqrestore(&musb->lock, flags); @@ -393,13 +393,14 @@ void musb_hnp_stop(struct musb *musb) void __iomem *mbase = musb->mregs; u8 reg; - dev_dbg(musb->controller, "HNP: stop from %s\n", otg_state_string(musb->xceiv->state)); + dev_dbg(musb->controller, "HNP: stop from %s\n", + usb_otg_state_string(musb->xceiv->state)); switch (musb->xceiv->state) { case OTG_STATE_A_PERIPHERAL: musb_g_disconnect(musb); dev_dbg(musb->controller, "HNP: back to %s\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); break; case OTG_STATE_B_HOST: dev_dbg(musb->controller, "HNP: Disabling HR\n"); @@ -413,7 +414,7 @@ void musb_hnp_stop(struct musb *musb) break; default: dev_dbg(musb->controller, "HNP: Stopping in unknown state %s\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); } /* @@ -451,7 +452,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, */ if (int_usb & MUSB_INTR_RESUME) { handled = IRQ_HANDLED; - dev_dbg(musb->controller, "RESUME (%s)\n", otg_state_string(musb->xceiv->state)); + dev_dbg(musb->controller, "RESUME (%s)\n", usb_otg_state_string(musb->xceiv->state)); if (devctl & MUSB_DEVCTL_HM) { void __iomem *mbase = musb->mregs; @@ -493,7 +494,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, default: WARNING("bogus %s RESUME (%s)\n", "host", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); } } else { switch (musb->xceiv->state) { @@ -522,7 +523,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, default: WARNING("bogus %s RESUME (%s)\n", "peripheral", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); } } } @@ -538,7 +539,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, } dev_dbg(musb->controller, "SESSION_REQUEST (%s)\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); /* IRQ arrives from ID pin sense or (later, if VBUS power * is removed) SRP. responses are time critical: @@ -602,8 +603,9 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, break; } - dev_dbg(musb->controller, "VBUS_ERROR in %s (%02x, %s), retry #%d, port1 %08x\n", - otg_state_string(musb->xceiv->state), + dev_printk(ignore ? KERN_DEBUG : KERN_ERR, musb->controller, + "VBUS_ERROR in %s (%02x, %s), retry #%d, port1 %08x\n", + usb_otg_state_string(musb->xceiv->state), devctl, ({ char *s; switch (devctl & MUSB_DEVCTL_VBUS) { @@ -628,7 +630,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb, if (int_usb & MUSB_INTR_SUSPEND) { dev_dbg(musb->controller, "SUSPEND (%s) devctl %02x\n", - otg_state_string(musb->xceiv->state), devctl); + usb_otg_state_string(musb->xceiv->state), devctl); handled = IRQ_HANDLED; switch (musb->xceiv->state) { @@ -745,12 +747,12 @@ b_host: usb_hcd_resume_root_hub(hcd); dev_dbg(musb->controller, "CONNECT (%s) devctl %02x\n", - otg_state_string(musb->xceiv->state), devctl); + usb_otg_state_string(musb->xceiv->state), devctl); } if ((int_usb & MUSB_INTR_DISCONNECT) && !musb->ignore_disconnect) { dev_dbg(musb->controller, "DISCONNECT (%s) as %s, devctl %02x\n", - otg_state_string(musb->xceiv->state), + usb_otg_state_string(musb->xceiv->state), MUSB_MODE(musb), devctl); handled = IRQ_HANDLED; @@ -787,7 +789,7 @@ b_host: break; default: WARNING("unhandled DISCONNECT transition (%s)\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); break; } } @@ -813,7 +815,7 @@ b_host: } } else { dev_dbg(musb->controller, "BUS RESET as %s\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); switch (musb->xceiv->state) { case OTG_STATE_A_SUSPEND: /* We need to ignore disconnect on suspend @@ -826,7 +828,7 @@ b_host: case OTG_STATE_A_WAIT_BCON: /* OPT TD.4.7-900ms */ /* never use invalid T(a_wait_bcon) */ dev_dbg(musb->controller, "HNP: in %s, %d msec timeout\n", - otg_state_string(musb->xceiv->state), + usb_otg_state_string(musb->xceiv->state), TA_WAIT_BCON(musb)); mod_timer(&musb->otg_timer, jiffies + msecs_to_jiffies(TA_WAIT_BCON(musb))); @@ -838,7 +840,7 @@ b_host: break; case OTG_STATE_B_WAIT_ACON: dev_dbg(musb->controller, "HNP: RESET (%s), to b_peripheral\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); musb->xceiv->state = OTG_STATE_B_PERIPHERAL; musb_g_reset(musb); break; @@ -850,7 +852,7 @@ b_host: break; default: dev_dbg(musb->controller, "Unhandled BUS RESET as %s\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); } } } @@ -1632,7 +1634,7 @@ musb_mode_show(struct device *dev, struct device_attribute *attr, char *buf) int ret = -EINVAL; spin_lock_irqsave(&musb->lock, flags); - ret = sprintf(buf, "%s\n", otg_state_string(musb->xceiv->state)); + ret = sprintf(buf, "%s\n", usb_otg_state_string(musb->xceiv->state)); spin_unlock_irqrestore(&musb->lock, flags); return ret; @@ -1951,9 +1953,13 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) musb_write_ulpi_buscontrol(musb->mregs, busctl); } - MUSB_DEV_MODE(musb); - musb->xceiv->otg->default_a = 0; - musb->xceiv->state = OTG_STATE_B_IDLE; + if (musb->xceiv->otg->default_a) { + MUSB_HST_MODE(musb); + musb->xceiv->state = OTG_STATE_A_IDLE; + } else { + MUSB_DEV_MODE(musb); + musb->xceiv->state = OTG_STATE_B_IDLE; + } status = musb_gadget_setup(musb); @@ -2008,7 +2014,6 @@ static int musb_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; int irq = platform_get_irq_byname(pdev, "mc"); - int status; struct resource *iomem; void __iomem *base; @@ -2016,24 +2021,17 @@ static int musb_probe(struct platform_device *pdev) if (!iomem || irq <= 0) return -ENODEV; - base = ioremap(iomem->start, resource_size(iomem)); - if (!base) { - dev_err(dev, "ioremap failed\n"); - return -ENOMEM; - } + base = devm_ioremap_resource(dev, iomem); + if (IS_ERR(base)) + return PTR_ERR(base); - status = musb_init_controller(dev, irq, base); - if (status < 0) - iounmap(base); - - return status; + return musb_init_controller(dev, irq, base); } static int musb_remove(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct musb *musb = dev_to_musb(dev); - void __iomem *ctrl_base = musb->ctrl_base; /* this gets called on rmmod. * - Host mode: host may still be active @@ -2044,7 +2042,6 @@ static int musb_remove(struct platform_device *pdev) musb_shutdown(pdev); musb_free(musb); - iounmap(ctrl_base); device_init_wakeup(dev, 0); #ifndef CONFIG_MUSB_PIO_ONLY dma_set_mask(dev, *dev->parent->dma_mask); @@ -2293,8 +2290,6 @@ static int __init musb_init(void) if (usb_disabled()) return 0; - pr_info("%s: version " MUSB_VERSION ", ?dma?, otg (peripheral+host)\n", - musb_driver_name); return platform_driver_register(&musb_driver); } module_init(musb_init); diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index 6bb89715b637..3a18e44e9391 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -38,6 +38,7 @@ #include <linux/module.h> #include <linux/usb/nop-usb-xceiv.h> #include <linux/platform_data/usb-omap.h> +#include <linux/sizes.h> #include <linux/of.h> #include <linux/of_device.h> @@ -224,7 +225,7 @@ static void otg_timer(unsigned long _musb) */ devctl = dsps_readb(mregs, MUSB_DEVCTL); dev_dbg(musb->controller, "Poll devctl %02x (%s)\n", devctl, - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); spin_lock_irqsave(&musb->lock, flags); switch (musb->xceiv->state) { @@ -273,7 +274,7 @@ static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout) if (musb->is_active || (musb->a_wait_bcon == 0 && musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) { dev_dbg(musb->controller, "%s active, deleting timer\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); del_timer(&glue->timer[pdev->id]); glue->last_timer[pdev->id] = jiffies; return; @@ -288,7 +289,7 @@ static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout) glue->last_timer[pdev->id] = timeout; dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n", - otg_state_string(musb->xceiv->state), + usb_otg_state_string(musb->xceiv->state), jiffies_to_msecs(timeout - jiffies)); mod_timer(&glue->timer[pdev->id], timeout); } @@ -334,7 +335,7 @@ static irqreturn_t dsps_interrupt(int irq, void *hci) * value but DEVCTL.BDEVICE is invalid without DEVCTL.SESSION set. * Also, DRVVBUS pulses for SRP (but not at 5V) ... */ - if (usbintr & MUSB_INTR_BABBLE) + if (is_host_active(musb) && usbintr & MUSB_INTR_BABBLE) pr_info("CAUTION: musb: Babble Interrupt Occurred\n"); if (usbintr & ((1 << wrp->drvvbus) << wrp->usb_shift)) { @@ -377,7 +378,7 @@ static irqreturn_t dsps_interrupt(int irq, void *hci) /* NOTE: this must complete power-on within 100 ms. */ dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n", drvvbus ? "on" : "off", - otg_state_string(musb->xceiv->state), + usb_otg_state_string(musb->xceiv->state), err ? " ERROR" : "", devctl); ret = IRQ_HANDLED; @@ -596,14 +597,13 @@ err0: static int dsps_probe(struct platform_device *pdev) { - struct device_node *np = pdev->dev.of_node; const struct of_device_id *match; const struct dsps_musb_wrapper *wrp; struct dsps_glue *glue; struct resource *iomem; int ret, i; - match = of_match_node(musb_dsps_of_match, np); + match = of_match_node(musb_dsps_of_match, pdev->dev.of_node); if (!match) { dev_err(&pdev->dev, "fail to get matching of_match struct\n"); ret = -EINVAL; diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index 83eddedcd9be..ba7092349fa9 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -46,48 +46,6 @@ #include "musb_core.h" -/* MUSB PERIPHERAL status 3-mar-2006: - * - * - EP0 seems solid. It passes both USBCV and usbtest control cases. - * Minor glitches: - * - * + remote wakeup to Linux hosts work, but saw USBCV failures; - * in one test run (operator error?) - * + endpoint halt tests -- in both usbtest and usbcv -- seem - * to break when dma is enabled ... is something wrongly - * clearing SENDSTALL? - * - * - Mass storage behaved ok when last tested. Network traffic patterns - * (with lots of short transfers etc) need retesting; they turn up the - * worst cases of the DMA, since short packets are typical but are not - * required. - * - * - TX/IN - * + both pio and dma behave in with network and g_zero tests - * + no cppi throughput issues other than no-hw-queueing - * + failed with FLAT_REG (DaVinci) - * + seems to behave with double buffering, PIO -and- CPPI - * + with gadgetfs + AIO, requests got lost? - * - * - RX/OUT - * + both pio and dma behave in with network and g_zero tests - * + dma is slow in typical case (short_not_ok is clear) - * + double buffering ok with PIO - * + double buffering *FAILS* with CPPI, wrong data bytes sometimes - * + request lossage observed with gadgetfs - * - * - ISO not tested ... might work, but only weakly isochronous - * - * - Gadget driver disabling of softconnect during bind() is ignored; so - * drivers can't hold off host requests until userspace is ready. - * (Workaround: they can turn it off later.) - * - * - PORTABILITY (assumes PIO works): - * + DaVinci, basically works with cppi dma - * + OMAP 2430, ditto with mentor dma - * + TUSB 6010, platform-specific dma in the works - */ - /* ----------------------------------------------------------------------- */ #define is_buffer_mapped(req) (is_dma_capable() && \ @@ -280,41 +238,6 @@ static inline int max_ep_writesize(struct musb *musb, struct musb_ep *ep) return ep->packet_sz; } - -#ifdef CONFIG_USB_INVENTRA_DMA - -/* Peripheral tx (IN) using Mentor DMA works as follows: - Only mode 0 is used for transfers <= wPktSize, - mode 1 is used for larger transfers, - - One of the following happens: - - Host sends IN token which causes an endpoint interrupt - -> TxAvail - -> if DMA is currently busy, exit. - -> if queue is non-empty, txstate(). - - - Request is queued by the gadget driver. - -> if queue was previously empty, txstate() - - txstate() - -> start - /\ -> setup DMA - | (data is transferred to the FIFO, then sent out when - | IN token(s) are recd from Host. - | -> DMA interrupt on completion - | calls TxAvail. - | -> stop DMA, ~DMAENAB, - | -> set TxPktRdy for last short pkt or zlp - | -> Complete Request - | -> Continue next request (call txstate) - |___________________________________| - - * Non-Mentor DMA engines can of course work differently, such as by - * upleveling from irq-per-packet to irq-per-buffer. - */ - -#endif - /* * An endpoint is transmitting data. This can be called either from * the IRQ routine or from ep.queue() to kickstart a request on an @@ -621,37 +544,6 @@ void musb_g_tx(struct musb *musb, u8 epnum) /* ------------------------------------------------------------ */ -#ifdef CONFIG_USB_INVENTRA_DMA - -/* Peripheral rx (OUT) using Mentor DMA works as follows: - - Only mode 0 is used. - - - Request is queued by the gadget class driver. - -> if queue was previously empty, rxstate() - - - Host sends OUT token which causes an endpoint interrupt - /\ -> RxReady - | -> if request queued, call rxstate - | /\ -> setup DMA - | | -> DMA interrupt on completion - | | -> RxReady - | | -> stop DMA - | | -> ack the read - | | -> if data recd = max expected - | | by the request, or host - | | sent a short packet, - | | complete the request, - | | and start the next one. - | |_____________________________________| - | else just wait for the host - | to send the next OUT token. - |__________________________________________________| - - * Non-Mentor DMA engines can of course work differently. - */ - -#endif - /* * Context: controller locked, IRQs blocked, endpoint selected */ @@ -740,7 +632,7 @@ static void rxstate(struct musb *musb, struct musb_request *req) struct dma_controller *c; struct dma_channel *channel; int use_dma = 0; - int transfer_size; + unsigned int transfer_size; c = musb->dma_controller; channel = musb_ep->dma; @@ -782,10 +674,11 @@ static void rxstate(struct musb *musb, struct musb_request *req) csr | MUSB_RXCSR_DMAMODE); musb_writew(epio, MUSB_RXCSR, csr); - transfer_size = min(request->length - request->actual, + transfer_size = min_t(unsigned int, + request->length - + request->actual, channel->max_len); musb_ep->dma->desired_mode = 1; - } else { if (!musb_ep->hb_mult && musb_ep->hw_ep->rx_double_buffered) @@ -815,7 +708,7 @@ static void rxstate(struct musb *musb, struct musb_request *req) struct dma_controller *c; struct dma_channel *channel; - int transfer_size = 0; + unsigned int transfer_size = 0; c = musb->dma_controller; channel = musb_ep->dma; @@ -824,11 +717,13 @@ static void rxstate(struct musb *musb, struct musb_request *req) if (fifo_count < musb_ep->packet_sz) transfer_size = fifo_count; else if (request->short_not_ok) - transfer_size = min(request->length - + transfer_size = min_t(unsigned int, + request->length - request->actual, channel->max_len); else - transfer_size = min(request->length - + transfer_size = min_t(unsigned int, + request->length - request->actual, (unsigned)fifo_count); @@ -1681,7 +1576,7 @@ static int musb_gadget_wakeup(struct usb_gadget *gadget) goto done; default: dev_dbg(musb->controller, "Unhandled wake: %s\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); goto done; } @@ -1801,13 +1696,6 @@ static const struct usb_gadget_ops musb_gadget_operations = { * all peripheral ports are external... */ -static void musb_gadget_release(struct device *dev) -{ - /* kref_put(WHAT) */ - dev_dbg(dev, "%s\n", __func__); -} - - static void init_peripheral_ep(struct musb *musb, struct musb_ep *ep, u8 epnum, int is_in) { @@ -1892,12 +1780,7 @@ int musb_gadget_setup(struct musb *musb) musb->g.speed = USB_SPEED_UNKNOWN; /* this "gadget" abstracts/virtualizes the controller */ - dev_set_name(&musb->g.dev, "gadget"); - musb->g.dev.parent = musb->controller; - musb->g.dev.dma_mask = musb->controller->dma_mask; - musb->g.dev.release = musb_gadget_release; musb->g.name = musb_driver_name; - musb->g.is_otg = 1; musb_g_init_endpoints(musb); @@ -1905,11 +1788,6 @@ int musb_gadget_setup(struct musb *musb) musb->is_active = 0; musb_platform_try_idle(musb, 0); - status = device_register(&musb->g.dev); - if (status != 0) { - put_device(&musb->g.dev); - return status; - } status = usb_add_gadget_udc(musb->controller, &musb->g); if (status) goto err; @@ -1924,8 +1802,6 @@ err: void musb_gadget_cleanup(struct musb *musb) { usb_del_gadget_udc(&musb->g); - if (musb->g.dev.parent) - device_unregister(&musb->g.dev); } /* @@ -1977,9 +1853,8 @@ static int musb_gadget_start(struct usb_gadget *g, goto err; } - if ((musb->xceiv->last_event == USB_EVENT_ID) - && otg->set_vbus) - otg_set_vbus(otg, 1); + if (musb->xceiv->last_event == USB_EVENT_ID) + musb_platform_set_vbus(musb, 1); hcd->self.uses_pio_for_control = 1; @@ -2063,6 +1938,7 @@ static int musb_gadget_stop(struct usb_gadget *g, dev_dbg(musb->controller, "unregistering driver %s\n", driver->function); musb->is_active = 0; + musb->gadget_driver = NULL; musb_platform_try_idle(musb, 0); spin_unlock_irqrestore(&musb->lock, flags); @@ -2099,7 +1975,7 @@ void musb_g_resume(struct musb *musb) break; default: WARNING("unhandled RESUME transition (%s)\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); } } @@ -2129,7 +2005,7 @@ void musb_g_suspend(struct musb *musb) * A_PERIPHERAL may need care too */ WARNING("unhandled SUSPEND transition (%s)\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); } } @@ -2163,7 +2039,7 @@ void musb_g_disconnect(struct musb *musb) switch (musb->xceiv->state) { default: dev_dbg(musb->controller, "Unhandled disconnect %s, setting a_idle\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); musb->xceiv->state = OTG_STATE_A_IDLE; MUSB_HST_MODE(musb); break; diff --git a/drivers/usb/musb/musb_gadget_ep0.c b/drivers/usb/musb/musb_gadget_ep0.c index c9c1ac4e075f..2af45a0c8930 100644 --- a/drivers/usb/musb/musb_gadget_ep0.c +++ b/drivers/usb/musb/musb_gadget_ep0.c @@ -505,8 +505,10 @@ static void ep0_rxstate(struct musb *musb) req->status = -EOVERFLOW; count = len; } - musb_read_fifo(&musb->endpoints[0], count, buf); - req->actual += count; + if (count > 0) { + musb_read_fifo(&musb->endpoints[0], count, buf); + req->actual += count; + } csr = MUSB_CSR0_P_SVDRXPKTRDY; if (count < 64 || req->actual == req->length) { musb->ep0_state = MUSB_EP0_STAGE_STATUSIN; diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 1ce1fcf3f3e7..8914dec49f01 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -2453,7 +2453,7 @@ static int musb_bus_suspend(struct usb_hcd *hcd) if (musb->is_active) { WARNING("trying to suspend as %s while active\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); return -EBUSY; } else return 0; @@ -2465,6 +2465,118 @@ static int musb_bus_resume(struct usb_hcd *hcd) return 0; } + +#ifndef CONFIG_MUSB_PIO_ONLY + +#define MUSB_USB_DMA_ALIGN 4 + +struct musb_temp_buffer { + void *kmalloc_ptr; + void *old_xfer_buffer; + u8 data[0]; +}; + +static void musb_free_temp_buffer(struct urb *urb) +{ + enum dma_data_direction dir; + struct musb_temp_buffer *temp; + + if (!(urb->transfer_flags & URB_ALIGNED_TEMP_BUFFER)) + return; + + dir = usb_urb_dir_in(urb) ? DMA_FROM_DEVICE : DMA_TO_DEVICE; + + temp = container_of(urb->transfer_buffer, struct musb_temp_buffer, + data); + + if (dir == DMA_FROM_DEVICE) { + memcpy(temp->old_xfer_buffer, temp->data, + urb->transfer_buffer_length); + } + urb->transfer_buffer = temp->old_xfer_buffer; + kfree(temp->kmalloc_ptr); + + urb->transfer_flags &= ~URB_ALIGNED_TEMP_BUFFER; +} + +static int musb_alloc_temp_buffer(struct urb *urb, gfp_t mem_flags) +{ + enum dma_data_direction dir; + struct musb_temp_buffer *temp; + void *kmalloc_ptr; + size_t kmalloc_size; + + if (urb->num_sgs || urb->sg || + urb->transfer_buffer_length == 0 || + !((uintptr_t)urb->transfer_buffer & (MUSB_USB_DMA_ALIGN - 1))) + return 0; + + dir = usb_urb_dir_in(urb) ? DMA_FROM_DEVICE : DMA_TO_DEVICE; + + /* Allocate a buffer with enough padding for alignment */ + kmalloc_size = urb->transfer_buffer_length + + sizeof(struct musb_temp_buffer) + MUSB_USB_DMA_ALIGN - 1; + + kmalloc_ptr = kmalloc(kmalloc_size, mem_flags); + if (!kmalloc_ptr) + return -ENOMEM; + + /* Position our struct temp_buffer such that data is aligned */ + temp = PTR_ALIGN(kmalloc_ptr, MUSB_USB_DMA_ALIGN); + + + temp->kmalloc_ptr = kmalloc_ptr; + temp->old_xfer_buffer = urb->transfer_buffer; + if (dir == DMA_TO_DEVICE) + memcpy(temp->data, urb->transfer_buffer, + urb->transfer_buffer_length); + urb->transfer_buffer = temp->data; + + urb->transfer_flags |= URB_ALIGNED_TEMP_BUFFER; + + return 0; +} + +static int musb_map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb, + gfp_t mem_flags) +{ + struct musb *musb = hcd_to_musb(hcd); + int ret; + + /* + * The DMA engine in RTL1.8 and above cannot handle + * DMA addresses that are not aligned to a 4 byte boundary. + * For such engine implemented (un)map_urb_for_dma hooks. + * Do not use these hooks for RTL<1.8 + */ + if (musb->hwvers < MUSB_HWVERS_1800) + return usb_hcd_map_urb_for_dma(hcd, urb, mem_flags); + + ret = musb_alloc_temp_buffer(urb, mem_flags); + if (ret) + return ret; + + ret = usb_hcd_map_urb_for_dma(hcd, urb, mem_flags); + if (ret) + musb_free_temp_buffer(urb); + + return ret; +} + +static void musb_unmap_urb_for_dma(struct usb_hcd *hcd, struct urb *urb) +{ + struct musb *musb = hcd_to_musb(hcd); + + usb_hcd_unmap_urb_for_dma(hcd, urb); + + /* Do not use this hook for RTL<1.8 (see description above) */ + if (musb->hwvers < MUSB_HWVERS_1800) + return; + + musb_free_temp_buffer(urb); +} +#endif /* !CONFIG_MUSB_PIO_ONLY */ + const struct hc_driver musb_hc_driver = { .description = "musb-hcd", .product_desc = "MUSB HDRC host driver", @@ -2484,6 +2596,11 @@ const struct hc_driver musb_hc_driver = { .urb_dequeue = musb_urb_dequeue, .endpoint_disable = musb_h_disable, +#ifndef CONFIG_MUSB_PIO_ONLY + .map_urb_for_dma = musb_map_urb_for_dma, + .unmap_urb_for_dma = musb_unmap_urb_for_dma, +#endif + .hub_status_data = musb_hub_status_data, .hub_control = musb_hub_control, .bus_suspend = musb_bus_suspend, diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c index f70579154ded..ef7d11045f56 100644 --- a/drivers/usb/musb/musb_virthub.c +++ b/drivers/usb/musb/musb_virthub.c @@ -95,7 +95,7 @@ static void musb_port_suspend(struct musb *musb, bool do_suspend) break; default: dev_dbg(musb->controller, "bogus rh suspend? %s\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); } } else if (power & MUSB_POWER_SUSPENDM) { power &= ~MUSB_POWER_SUSPENDM; @@ -203,7 +203,7 @@ void musb_root_disconnect(struct musb *musb) break; default: dev_dbg(musb->controller, "host disconnect (%s)\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); } } diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index 1a42a458f2c4..3551f1a30c65 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -117,7 +117,7 @@ static void omap2430_musb_try_idle(struct musb *musb, unsigned long timeout) if (musb->is_active || ((musb->a_wait_bcon == 0) && (musb->xceiv->state == OTG_STATE_A_WAIT_BCON))) { dev_dbg(musb->controller, "%s active, deleting timer\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); del_timer(&musb_idle_timer); last_timer = jiffies; return; @@ -134,7 +134,7 @@ static void omap2430_musb_try_idle(struct musb *musb, unsigned long timeout) last_timer = timeout; dev_dbg(musb->controller, "%s inactive, for idle timer for %lu ms\n", - otg_state_string(musb->xceiv->state), + usb_otg_state_string(musb->xceiv->state), (unsigned long)jiffies_to_msecs(timeout - jiffies)); mod_timer(&musb_idle_timer, timeout); } @@ -174,8 +174,7 @@ static void omap2430_musb_set_vbus(struct musb *musb, int is_on) } } - if (otg->set_vbus) - otg_set_vbus(otg, 1); + otg_set_vbus(otg, 1); } else { musb->is_active = 1; otg->default_a = 1; @@ -200,7 +199,7 @@ static void omap2430_musb_set_vbus(struct musb *musb, int is_on) dev_dbg(musb->controller, "VBUS %s, devctl %02x " /* otg %3x conf %08x prcm %08x */ "\n", - otg_state_string(musb->xceiv->state), + usb_otg_state_string(musb->xceiv->state), musb_readb(musb->mregs, MUSB_DEVCTL)); } @@ -292,14 +291,14 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue) musb->xceiv->last_event = USB_EVENT_NONE; if (musb->gadget_driver) { + omap2430_musb_set_vbus(musb, 0); pm_runtime_mark_last_busy(dev); pm_runtime_put_autosuspend(dev); } - if (data->interface_type == MUSB_INTERFACE_UTMI) { - if (musb->xceiv->otg->set_vbus) - otg_set_vbus(musb->xceiv->otg, 0); - } + if (data->interface_type == MUSB_INTERFACE_UTMI) + otg_set_vbus(musb->xceiv->otg, 0); + omap_control_usb_set_mode(glue->control_otghs, USB_MODE_DISCONNECT); break; @@ -355,7 +354,12 @@ static int omap2430_musb_init(struct musb *musb) else musb->xceiv = devm_usb_get_phy_dev(dev, 0); - if (IS_ERR_OR_NULL(musb->xceiv)) { + if (IS_ERR(musb->xceiv)) { + status = PTR_ERR(musb->xceiv); + + if (status == -ENXIO) + return status; + pr_err("HS USB OTG: no transceiver configured\n"); return -EPROBE_DEFER; } @@ -393,6 +397,8 @@ static int omap2430_musb_init(struct musb *musb) if (glue->status != OMAP_MUSB_UNKNOWN) omap_musb_set_mailbox(glue); + usb_phy_init(musb->xceiv); + pm_runtime_put_noidle(musb->controller); return 0; @@ -526,10 +532,10 @@ static int omap2430_probe(struct platform_device *pdev) } of_property_read_u32(np, "mode", (u32 *)&pdata->mode); - of_property_read_u32(np, "interface_type", + of_property_read_u32(np, "interface-type", (u32 *)&data->interface_type); - of_property_read_u32(np, "num_eps", (u32 *)&config->num_eps); - of_property_read_u32(np, "ram_bits", (u32 *)&config->ram_bits); + of_property_read_u32(np, "num-eps", (u32 *)&config->num_eps); + of_property_read_u32(np, "ram-bits", (u32 *)&config->ram_bits); of_property_read_u32(np, "power", (u32 *)&pdata->power); config->multipoint = of_property_read_bool(np, "multipoint"); pdata->has_mailbox = of_property_read_bool(np, diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c index 464bd23cccda..7369ba33c94f 100644 --- a/drivers/usb/musb/tusb6010.c +++ b/drivers/usb/musb/tusb6010.c @@ -423,7 +423,7 @@ static void musb_do_idle(unsigned long _musb) && (musb->idle_timeout == 0 || time_after(jiffies, musb->idle_timeout))) { dev_dbg(musb->controller, "Nothing connected %s, turning off VBUS\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); } /* FALLTHROUGH */ case OTG_STATE_A_IDLE: @@ -478,7 +478,7 @@ static void tusb_musb_try_idle(struct musb *musb, unsigned long timeout) if (musb->is_active || ((musb->a_wait_bcon == 0) && (musb->xceiv->state == OTG_STATE_A_WAIT_BCON))) { dev_dbg(musb->controller, "%s active, deleting timer\n", - otg_state_string(musb->xceiv->state)); + usb_otg_state_string(musb->xceiv->state)); del_timer(&musb_idle_timer); last_timer = jiffies; return; @@ -495,7 +495,7 @@ static void tusb_musb_try_idle(struct musb *musb, unsigned long timeout) last_timer = timeout; dev_dbg(musb->controller, "%s inactive, for idle timer for %lu ms\n", - otg_state_string(musb->xceiv->state), + usb_otg_state_string(musb->xceiv->state), (unsigned long)jiffies_to_msecs(timeout - jiffies)); mod_timer(&musb_idle_timer, timeout); } @@ -571,7 +571,7 @@ static void tusb_musb_set_vbus(struct musb *musb, int is_on) musb_writeb(musb->mregs, MUSB_DEVCTL, devctl); dev_dbg(musb->controller, "VBUS %s, devctl %02x otg %3x conf %08x prcm %08x\n", - otg_state_string(musb->xceiv->state), + usb_otg_state_string(musb->xceiv->state), musb_readb(musb->mregs, MUSB_DEVCTL), musb_readl(tbase, TUSB_DEV_OTG_STAT), conf, prcm); @@ -678,13 +678,13 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase) musb->is_active = 0; } dev_dbg(musb->controller, "vbus change, %s, otg %03x\n", - otg_state_string(musb->xceiv->state), otg_stat); + usb_otg_state_string(musb->xceiv->state), otg_stat); idle_timeout = jiffies + (1 * HZ); schedule_work(&musb->irq_work); } else /* A-dev state machine */ { dev_dbg(musb->controller, "vbus change, %s, otg %03x\n", - otg_state_string(musb->xceiv->state), otg_stat); + usb_otg_state_string(musb->xceiv->state), otg_stat); switch (musb->xceiv->state) { case OTG_STATE_A_IDLE: @@ -733,7 +733,7 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase) u8 devctl; dev_dbg(musb->controller, "%s timer, %03x\n", - otg_state_string(musb->xceiv->state), otg_stat); + usb_otg_state_string(musb->xceiv->state), otg_stat); switch (musb->xceiv->state) { case OTG_STATE_A_WAIT_VRISE: diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c index 13a392913769..2c80004e0a83 100644 --- a/drivers/usb/musb/ux500.c +++ b/drivers/usb/musb/ux500.c @@ -26,6 +26,7 @@ #include <linux/err.h> #include <linux/io.h> #include <linux/platform_device.h> +#include <linux/usb/musb-ux500.h> #include "musb_core.h" @@ -36,6 +37,98 @@ struct ux500_glue { }; #define glue_to_musb(g) platform_get_drvdata(g->musb) +static void ux500_musb_set_vbus(struct musb *musb, int is_on) +{ + u8 devctl; + unsigned long timeout = jiffies + msecs_to_jiffies(1000); + /* HDRC controls CPEN, but beware current surges during device + * connect. They can trigger transient overcurrent conditions + * that must be ignored. + */ + + devctl = musb_readb(musb->mregs, MUSB_DEVCTL); + + if (is_on) { + if (musb->xceiv->state == OTG_STATE_A_IDLE) { + /* start the session */ + devctl |= MUSB_DEVCTL_SESSION; + musb_writeb(musb->mregs, MUSB_DEVCTL, devctl); + /* + * Wait for the musb to set as A device to enable the + * VBUS + */ + while (musb_readb(musb->mregs, MUSB_DEVCTL) & 0x80) { + + if (time_after(jiffies, timeout)) { + dev_err(musb->controller, + "configured as A device timeout"); + break; + } + } + + } else { + musb->is_active = 1; + musb->xceiv->otg->default_a = 1; + musb->xceiv->state = OTG_STATE_A_WAIT_VRISE; + devctl |= MUSB_DEVCTL_SESSION; + MUSB_HST_MODE(musb); + } + } else { + musb->is_active = 0; + + /* NOTE: we're skipping A_WAIT_VFALL -> A_IDLE and jumping + * right to B_IDLE... + */ + musb->xceiv->otg->default_a = 0; + devctl &= ~MUSB_DEVCTL_SESSION; + MUSB_DEV_MODE(musb); + } + musb_writeb(musb->mregs, MUSB_DEVCTL, devctl); + + /* + * Devctl values will be updated after vbus goes below + * session_valid. The time taken depends on the capacitance + * on VBUS line. The max discharge time can be upto 1 sec + * as per the spec. Typically on our platform, it is 200ms + */ + if (!is_on) + mdelay(200); + + dev_dbg(musb->controller, "VBUS %s, devctl %02x\n", + usb_otg_state_string(musb->xceiv->state), + musb_readb(musb->mregs, MUSB_DEVCTL)); +} + +static int musb_otg_notifications(struct notifier_block *nb, + unsigned long event, void *unused) +{ + struct musb *musb = container_of(nb, struct musb, nb); + + dev_dbg(musb->controller, "musb_otg_notifications %ld %s\n", + event, usb_otg_state_string(musb->xceiv->state)); + + switch (event) { + case UX500_MUSB_ID: + dev_dbg(musb->controller, "ID GND\n"); + ux500_musb_set_vbus(musb, 1); + break; + case UX500_MUSB_VBUS: + dev_dbg(musb->controller, "VBUS Connect\n"); + break; + case UX500_MUSB_NONE: + dev_dbg(musb->controller, "VBUS Disconnect\n"); + if (is_host_active(musb)) + ux500_musb_set_vbus(musb, 0); + else + musb->xceiv->state = OTG_STATE_B_IDLE; + break; + default: + dev_dbg(musb->controller, "ID float\n"); + return NOTIFY_DONE; + } + return NOTIFY_OK; +} + static irqreturn_t ux500_musb_interrupt(int irq, void *__hci) { unsigned long flags; @@ -58,12 +151,21 @@ static irqreturn_t ux500_musb_interrupt(int irq, void *__hci) static int ux500_musb_init(struct musb *musb) { + int status; + musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2); if (IS_ERR_OR_NULL(musb->xceiv)) { pr_err("HS USB OTG: no transceiver configured\n"); return -EPROBE_DEFER; } + musb->nb.notifier_call = musb_otg_notifications; + status = usb_register_notifier(musb->xceiv, &musb->nb); + if (status < 0) { + dev_dbg(musb->controller, "notification register failed\n"); + return status; + } + musb->isr = ux500_musb_interrupt; return 0; @@ -71,6 +173,8 @@ static int ux500_musb_init(struct musb *musb) static int ux500_musb_exit(struct musb *musb) { + usb_unregister_notifier(musb->xceiv, &musb->nb); + usb_put_phy(musb->xceiv); return 0; @@ -79,6 +183,8 @@ static int ux500_musb_exit(struct musb *musb) static const struct musb_platform_ops ux500_ops = { .init = ux500_musb_init, .exit = ux500_musb_exit, + + .set_vbus = ux500_musb_set_vbus, }; static int ux500_probe(struct platform_device *pdev) diff --git a/drivers/usb/musb/ux500_dma.c b/drivers/usb/musb/ux500_dma.c index 039e567dd3b6..338120641145 100644 --- a/drivers/usb/musb/ux500_dma.c +++ b/drivers/usb/musb/ux500_dma.c @@ -1,7 +1,7 @@ /* * drivers/usb/musb/ux500_dma.c * - * U8500 and U5500 DMA support code + * U8500 DMA support code * * Copyright (C) 2009 STMicroelectronics * Copyright (C) 2011 ST-Ericsson SA @@ -30,6 +30,7 @@ #include <linux/dma-mapping.h> #include <linux/dmaengine.h> #include <linux/pfn.h> +#include <linux/sizes.h> #include <linux/platform_data/usb-musb-ux500.h> #include "musb_core.h" @@ -56,7 +57,7 @@ struct ux500_dma_controller { }; /* Work function invoked from DMA callback to handle rx transfers. */ -void ux500_dma_callback(void *private_data) +static void ux500_dma_callback(void *private_data) { struct dma_channel *channel = private_data; struct ux500_dma_channel *ux500_channel = channel->private_data; @@ -93,8 +94,9 @@ static bool ux500_configure_channel(struct dma_channel *channel, struct musb *musb = ux500_channel->controller->private_data; dev_dbg(musb->controller, - "packet_sz=%d, mode=%d, dma_addr=0x%x, len=%d is_tx=%d\n", - packet_sz, mode, dma_addr, len, ux500_channel->is_tx); + "packet_sz=%d, mode=%d, dma_addr=0x%llu, len=%d is_tx=%d\n", + packet_sz, mode, (unsigned long long) dma_addr, + len, ux500_channel->is_tx); ux500_channel->cur_len = len; @@ -191,7 +193,7 @@ static int ux500_dma_is_compatible(struct dma_channel *channel, u16 maxpacket, void *buf, u32 length) { if ((maxpacket & 0x3) || - ((int)buf & 0x3) || + ((unsigned long int) buf & 0x3) || (length < 512) || (length & 0x3)) return false; @@ -372,12 +374,17 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *ba controller = kzalloc(sizeof(*controller), GFP_KERNEL); if (!controller) - return NULL; + goto kzalloc_fail; controller->private_data = musb; /* Save physical address for DMA controller. */ iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!iomem) { + dev_err(musb->controller, "no memory resource defined\n"); + goto plat_get_fail; + } + controller->phy_base = (dma_addr_t) iomem->start; controller->controller.start = ux500_dma_controller_start; @@ -389,4 +396,9 @@ struct dma_controller *dma_controller_create(struct musb *musb, void __iomem *ba controller->controller.is_compatible = ux500_dma_is_compatible; return &controller->controller; + +plat_get_fail: + kfree(controller); +kzalloc_fail: + return NULL; } diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig deleted file mode 100644 index 37962c99ff1e..000000000000 --- a/drivers/usb/otg/Kconfig +++ /dev/null @@ -1,141 +0,0 @@ -# -# USB OTG infrastructure may be needed for peripheral-only, host-only, -# or OTG-capable configurations when OTG transceivers or controllers -# are used. -# - -comment "OTG and related infrastructure" - -config USB_OTG_UTILS - bool - help - Select this to make sure the build includes objects from - the OTG infrastructure directory. - -if USB || USB_GADGET - -# -# USB Transceiver Drivers -# -config USB_GPIO_VBUS - tristate "GPIO based peripheral-only VBUS sensing 'transceiver'" - depends on GENERIC_GPIO - select USB_OTG_UTILS - help - Provides simple GPIO VBUS sensing for controllers with an - internal transceiver via the usb_phy interface, and - optionally control of a D+ pullup GPIO as well as a VBUS - current limit regulator. - -config ISP1301_OMAP - tristate "Philips ISP1301 with OMAP OTG" - depends on I2C && ARCH_OMAP_OTG - select USB_OTG_UTILS - help - If you say yes here you get support for the Philips ISP1301 - USB-On-The-Go transceiver working with the OMAP OTG controller. - The ISP1301 is a full speed USB transceiver which is used in - products including H2, H3, and H4 development boards for Texas - Instruments OMAP processors. - - This driver can also be built as a module. If so, the module - will be called isp1301_omap. - -config USB_ULPI - bool "Generic ULPI Transceiver Driver" - depends on ARM - select USB_OTG_UTILS - help - Enable this to support ULPI connected USB OTG transceivers which - are likely found on embedded boards. - -config USB_ULPI_VIEWPORT - bool - depends on USB_ULPI - help - Provides read/write operations to the ULPI phy register set for - controllers with a viewport register (e.g. Chipidea/ARC controllers). - -config TWL4030_USB - tristate "TWL4030 USB Transceiver Driver" - depends on TWL4030_CORE && REGULATOR_TWL4030 && USB_MUSB_OMAP2PLUS - select USB_OTG_UTILS - help - Enable this to support the USB OTG transceiver on TWL4030 - family chips (including the TWL5030 and TPS659x0 devices). - This transceiver supports high and full speed devices plus, - in host mode, low speed. - -config TWL6030_USB - tristate "TWL6030 USB Transceiver Driver" - depends on TWL4030_CORE && OMAP_USB2 && USB_MUSB_OMAP2PLUS - select USB_OTG_UTILS - help - Enable this to support the USB OTG transceiver on TWL6030 - family chips. This TWL6030 transceiver has the VBUS and ID GND - and OTG SRP events capabilities. For all other transceiver functionality - UTMI PHY is embedded in OMAP4430. The internal PHY configurations APIs - are hooked to this driver through platform_data structure. - The definition of internal PHY APIs are in the mach-omap2 layer. - -config NOP_USB_XCEIV - tristate "NOP USB Transceiver Driver" - select USB_OTG_UTILS - help - This driver is to be used by all the usb transceiver which are either - built-in with usb ip or which are autonomous and doesn't require any - phy programming such as ISP1x04 etc. - -config USB_MSM_OTG - tristate "OTG support for Qualcomm on-chip USB controller" - depends on (USB || USB_GADGET) && ARCH_MSM - select USB_OTG_UTILS - help - Enable this to support the USB OTG transceiver on MSM chips. It - handles PHY initialization, clock management, and workarounds - required after resetting the hardware and power management. - This driver is required even for peripheral only or host only - mode configurations. - This driver is not supported on boards like trout which - has an external PHY. - -config AB8500_USB - tristate "AB8500 USB Transceiver Driver" - depends on AB8500_CORE - select USB_OTG_UTILS - help - Enable this to support the USB OTG transceiver in AB8500 chip. - This transceiver supports high and full speed devices plus, - in host mode, low speed. - -config FSL_USB2_OTG - bool "Freescale USB OTG Transceiver Driver" - depends on USB_EHCI_FSL && USB_FSL_USB2 && USB_SUSPEND - select USB_OTG - select USB_OTG_UTILS - help - Enable this to support Freescale USB OTG transceiver. - -config USB_MXS_PHY - tristate "Freescale MXS USB PHY support" - depends on ARCH_MXC || ARCH_MXS - select STMP_DEVICE - select USB_OTG_UTILS - help - Enable this to support the Freescale MXS USB PHY. - - MXS Phy is used by some of the i.MX SoCs, for example imx23/28/6x. - -config USB_MV_OTG - tristate "Marvell USB OTG support" - depends on USB_EHCI_MV && USB_MV_UDC && USB_SUSPEND - select USB_OTG - select USB_OTG_UTILS - help - Say Y here if you want to build Marvell USB OTG transciever - driver in kernel (including PXA and MMP series). This driver - implements role switch between EHCI host driver and gadget driver. - - To compile this driver as a module, choose M here. - -endif # USB || OTG diff --git a/drivers/usb/otg/Makefile b/drivers/usb/otg/Makefile deleted file mode 100644 index a844b8d35d14..000000000000 --- a/drivers/usb/otg/Makefile +++ /dev/null @@ -1,24 +0,0 @@ -# -# OTG infrastructure and transceiver drivers -# - -ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG -ccflags-$(CONFIG_USB_GADGET_DEBUG) += -DDEBUG - -# infrastructure -obj-$(CONFIG_USB_OTG_UTILS) += otg.o - -# transceiver drivers -obj-$(CONFIG_USB_GPIO_VBUS) += gpio_vbus.o -obj-$(CONFIG_ISP1301_OMAP) += isp1301_omap.o -obj-$(CONFIG_TWL4030_USB) += twl4030-usb.o -obj-$(CONFIG_TWL6030_USB) += twl6030-usb.o -obj-$(CONFIG_NOP_USB_XCEIV) += nop-usb-xceiv.o -obj-$(CONFIG_USB_ULPI) += ulpi.o -obj-$(CONFIG_USB_ULPI_VIEWPORT) += ulpi_viewport.o -obj-$(CONFIG_USB_MSM_OTG) += msm_otg.o -obj-$(CONFIG_AB8500_USB) += ab8500-usb.o -fsl_usb2_otg-objs := fsl_otg.o otg_fsm.o -obj-$(CONFIG_FSL_USB2_OTG) += fsl_usb2_otg.o -obj-$(CONFIG_USB_MXS_PHY) += mxs-phy.o -obj-$(CONFIG_USB_MV_OTG) += mv_otg.o diff --git a/drivers/usb/otg/ab8500-usb.c b/drivers/usb/otg/ab8500-usb.c deleted file mode 100644 index 2d86f26a0183..000000000000 --- a/drivers/usb/otg/ab8500-usb.c +++ /dev/null @@ -1,596 +0,0 @@ -/* - * drivers/usb/otg/ab8500_usb.c - * - * USB transceiver driver for AB8500 chip - * - * Copyright (C) 2010 ST-Ericsson AB - * Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/usb/otg.h> -#include <linux/slab.h> -#include <linux/notifier.h> -#include <linux/interrupt.h> -#include <linux/delay.h> -#include <linux/mfd/abx500.h> -#include <linux/mfd/abx500/ab8500.h> - -#define AB8500_MAIN_WD_CTRL_REG 0x01 -#define AB8500_USB_LINE_STAT_REG 0x80 -#define AB8500_USB_PHY_CTRL_REG 0x8A - -#define AB8500_BIT_OTG_STAT_ID (1 << 0) -#define AB8500_BIT_PHY_CTRL_HOST_EN (1 << 0) -#define AB8500_BIT_PHY_CTRL_DEVICE_EN (1 << 1) -#define AB8500_BIT_WD_CTRL_ENABLE (1 << 0) -#define AB8500_BIT_WD_CTRL_KICK (1 << 1) - -#define AB8500_V1x_LINK_STAT_WAIT (HZ/10) -#define AB8500_WD_KICK_DELAY_US 100 /* usec */ -#define AB8500_WD_V11_DISABLE_DELAY_US 100 /* usec */ -#define AB8500_WD_V10_DISABLE_DELAY_MS 100 /* ms */ - -/* Usb line status register */ -enum ab8500_usb_link_status { - USB_LINK_NOT_CONFIGURED = 0, - USB_LINK_STD_HOST_NC, - USB_LINK_STD_HOST_C_NS, - USB_LINK_STD_HOST_C_S, - USB_LINK_HOST_CHG_NM, - USB_LINK_HOST_CHG_HS, - USB_LINK_HOST_CHG_HS_CHIRP, - USB_LINK_DEDICATED_CHG, - USB_LINK_ACA_RID_A, - USB_LINK_ACA_RID_B, - USB_LINK_ACA_RID_C_NM, - USB_LINK_ACA_RID_C_HS, - USB_LINK_ACA_RID_C_HS_CHIRP, - USB_LINK_HM_IDGND, - USB_LINK_RESERVED, - USB_LINK_NOT_VALID_LINK -}; - -struct ab8500_usb { - struct usb_phy phy; - struct device *dev; - int irq_num_id_rise; - int irq_num_id_fall; - int irq_num_vbus_rise; - int irq_num_vbus_fall; - int irq_num_link_status; - unsigned vbus_draw; - struct delayed_work dwork; - struct work_struct phy_dis_work; - unsigned long link_status_wait; - int rev; -}; - -static inline struct ab8500_usb *phy_to_ab(struct usb_phy *x) -{ - return container_of(x, struct ab8500_usb, phy); -} - -static void ab8500_usb_wd_workaround(struct ab8500_usb *ab) -{ - abx500_set_register_interruptible(ab->dev, - AB8500_SYS_CTRL2_BLOCK, - AB8500_MAIN_WD_CTRL_REG, - AB8500_BIT_WD_CTRL_ENABLE); - - udelay(AB8500_WD_KICK_DELAY_US); - - abx500_set_register_interruptible(ab->dev, - AB8500_SYS_CTRL2_BLOCK, - AB8500_MAIN_WD_CTRL_REG, - (AB8500_BIT_WD_CTRL_ENABLE - | AB8500_BIT_WD_CTRL_KICK)); - - if (ab->rev > 0x10) /* v1.1 v2.0 */ - udelay(AB8500_WD_V11_DISABLE_DELAY_US); - else /* v1.0 */ - msleep(AB8500_WD_V10_DISABLE_DELAY_MS); - - abx500_set_register_interruptible(ab->dev, - AB8500_SYS_CTRL2_BLOCK, - AB8500_MAIN_WD_CTRL_REG, - 0); -} - -static void ab8500_usb_phy_ctrl(struct ab8500_usb *ab, bool sel_host, - bool enable) -{ - u8 ctrl_reg; - abx500_get_register_interruptible(ab->dev, - AB8500_USB, - AB8500_USB_PHY_CTRL_REG, - &ctrl_reg); - if (sel_host) { - if (enable) - ctrl_reg |= AB8500_BIT_PHY_CTRL_HOST_EN; - else - ctrl_reg &= ~AB8500_BIT_PHY_CTRL_HOST_EN; - } else { - if (enable) - ctrl_reg |= AB8500_BIT_PHY_CTRL_DEVICE_EN; - else - ctrl_reg &= ~AB8500_BIT_PHY_CTRL_DEVICE_EN; - } - - abx500_set_register_interruptible(ab->dev, - AB8500_USB, - AB8500_USB_PHY_CTRL_REG, - ctrl_reg); - - /* Needed to enable the phy.*/ - if (enable) - ab8500_usb_wd_workaround(ab); -} - -#define ab8500_usb_host_phy_en(ab) ab8500_usb_phy_ctrl(ab, true, true) -#define ab8500_usb_host_phy_dis(ab) ab8500_usb_phy_ctrl(ab, true, false) -#define ab8500_usb_peri_phy_en(ab) ab8500_usb_phy_ctrl(ab, false, true) -#define ab8500_usb_peri_phy_dis(ab) ab8500_usb_phy_ctrl(ab, false, false) - -static int ab8500_usb_link_status_update(struct ab8500_usb *ab) -{ - u8 reg; - enum ab8500_usb_link_status lsts; - void *v = NULL; - enum usb_phy_events event; - - abx500_get_register_interruptible(ab->dev, - AB8500_USB, - AB8500_USB_LINE_STAT_REG, - ®); - - lsts = (reg >> 3) & 0x0F; - - switch (lsts) { - case USB_LINK_NOT_CONFIGURED: - case USB_LINK_RESERVED: - case USB_LINK_NOT_VALID_LINK: - /* TODO: Disable regulators. */ - ab8500_usb_host_phy_dis(ab); - ab8500_usb_peri_phy_dis(ab); - ab->phy.state = OTG_STATE_B_IDLE; - ab->phy.otg->default_a = false; - ab->vbus_draw = 0; - event = USB_EVENT_NONE; - break; - - case USB_LINK_STD_HOST_NC: - case USB_LINK_STD_HOST_C_NS: - case USB_LINK_STD_HOST_C_S: - case USB_LINK_HOST_CHG_NM: - case USB_LINK_HOST_CHG_HS: - case USB_LINK_HOST_CHG_HS_CHIRP: - if (ab->phy.otg->gadget) { - /* TODO: Enable regulators. */ - ab8500_usb_peri_phy_en(ab); - v = ab->phy.otg->gadget; - } - event = USB_EVENT_VBUS; - break; - - case USB_LINK_HM_IDGND: - if (ab->phy.otg->host) { - /* TODO: Enable regulators. */ - ab8500_usb_host_phy_en(ab); - v = ab->phy.otg->host; - } - ab->phy.state = OTG_STATE_A_IDLE; - ab->phy.otg->default_a = true; - event = USB_EVENT_ID; - break; - - case USB_LINK_ACA_RID_A: - case USB_LINK_ACA_RID_B: - /* TODO */ - case USB_LINK_ACA_RID_C_NM: - case USB_LINK_ACA_RID_C_HS: - case USB_LINK_ACA_RID_C_HS_CHIRP: - case USB_LINK_DEDICATED_CHG: - /* TODO: vbus_draw */ - event = USB_EVENT_CHARGER; - break; - } - - atomic_notifier_call_chain(&ab->phy.notifier, event, v); - - return 0; -} - -static void ab8500_usb_delayed_work(struct work_struct *work) -{ - struct ab8500_usb *ab = container_of(work, struct ab8500_usb, - dwork.work); - - ab8500_usb_link_status_update(ab); -} - -static irqreturn_t ab8500_usb_v1x_common_irq(int irq, void *data) -{ - struct ab8500_usb *ab = (struct ab8500_usb *) data; - - /* Wait for link status to become stable. */ - schedule_delayed_work(&ab->dwork, ab->link_status_wait); - - return IRQ_HANDLED; -} - -static irqreturn_t ab8500_usb_v1x_vbus_fall_irq(int irq, void *data) -{ - struct ab8500_usb *ab = (struct ab8500_usb *) data; - - /* Link status will not be updated till phy is disabled. */ - ab8500_usb_peri_phy_dis(ab); - - /* Wait for link status to become stable. */ - schedule_delayed_work(&ab->dwork, ab->link_status_wait); - - return IRQ_HANDLED; -} - -static irqreturn_t ab8500_usb_v20_irq(int irq, void *data) -{ - struct ab8500_usb *ab = (struct ab8500_usb *) data; - - ab8500_usb_link_status_update(ab); - - return IRQ_HANDLED; -} - -static void ab8500_usb_phy_disable_work(struct work_struct *work) -{ - struct ab8500_usb *ab = container_of(work, struct ab8500_usb, - phy_dis_work); - - if (!ab->phy.otg->host) - ab8500_usb_host_phy_dis(ab); - - if (!ab->phy.otg->gadget) - ab8500_usb_peri_phy_dis(ab); -} - -static int ab8500_usb_set_power(struct usb_phy *phy, unsigned mA) -{ - struct ab8500_usb *ab; - - if (!phy) - return -ENODEV; - - ab = phy_to_ab(phy); - - ab->vbus_draw = mA; - - if (mA) - atomic_notifier_call_chain(&ab->phy.notifier, - USB_EVENT_ENUMERATED, ab->phy.otg->gadget); - return 0; -} - -/* TODO: Implement some way for charging or other drivers to read - * ab->vbus_draw. - */ - -static int ab8500_usb_set_suspend(struct usb_phy *x, int suspend) -{ - /* TODO */ - return 0; -} - -static int ab8500_usb_set_peripheral(struct usb_otg *otg, - struct usb_gadget *gadget) -{ - struct ab8500_usb *ab; - - if (!otg) - return -ENODEV; - - ab = phy_to_ab(otg->phy); - - /* Some drivers call this function in atomic context. - * Do not update ab8500 registers directly till this - * is fixed. - */ - - if (!gadget) { - /* TODO: Disable regulators. */ - otg->gadget = NULL; - schedule_work(&ab->phy_dis_work); - } else { - otg->gadget = gadget; - otg->phy->state = OTG_STATE_B_IDLE; - - /* Phy will not be enabled if cable is already - * plugged-in. Schedule to enable phy. - * Use same delay to avoid any race condition. - */ - schedule_delayed_work(&ab->dwork, ab->link_status_wait); - } - - return 0; -} - -static int ab8500_usb_set_host(struct usb_otg *otg, struct usb_bus *host) -{ - struct ab8500_usb *ab; - - if (!otg) - return -ENODEV; - - ab = phy_to_ab(otg->phy); - - /* Some drivers call this function in atomic context. - * Do not update ab8500 registers directly till this - * is fixed. - */ - - if (!host) { - /* TODO: Disable regulators. */ - otg->host = NULL; - schedule_work(&ab->phy_dis_work); - } else { - otg->host = host; - /* Phy will not be enabled if cable is already - * plugged-in. Schedule to enable phy. - * Use same delay to avoid any race condition. - */ - schedule_delayed_work(&ab->dwork, ab->link_status_wait); - } - - return 0; -} - -static void ab8500_usb_irq_free(struct ab8500_usb *ab) -{ - if (ab->rev < 0x20) { - free_irq(ab->irq_num_id_rise, ab); - free_irq(ab->irq_num_id_fall, ab); - free_irq(ab->irq_num_vbus_rise, ab); - free_irq(ab->irq_num_vbus_fall, ab); - } else { - free_irq(ab->irq_num_link_status, ab); - } -} - -static int ab8500_usb_v1x_res_setup(struct platform_device *pdev, - struct ab8500_usb *ab) -{ - int err; - - ab->irq_num_id_rise = platform_get_irq_byname(pdev, "ID_WAKEUP_R"); - if (ab->irq_num_id_rise < 0) { - dev_err(&pdev->dev, "ID rise irq not found\n"); - return ab->irq_num_id_rise; - } - err = request_threaded_irq(ab->irq_num_id_rise, NULL, - ab8500_usb_v1x_common_irq, - IRQF_NO_SUSPEND | IRQF_SHARED, - "usb-id-rise", ab); - if (err < 0) { - dev_err(ab->dev, "request_irq failed for ID rise irq\n"); - goto fail0; - } - - ab->irq_num_id_fall = platform_get_irq_byname(pdev, "ID_WAKEUP_F"); - if (ab->irq_num_id_fall < 0) { - dev_err(&pdev->dev, "ID fall irq not found\n"); - return ab->irq_num_id_fall; - } - err = request_threaded_irq(ab->irq_num_id_fall, NULL, - ab8500_usb_v1x_common_irq, - IRQF_NO_SUSPEND | IRQF_SHARED, - "usb-id-fall", ab); - if (err < 0) { - dev_err(ab->dev, "request_irq failed for ID fall irq\n"); - goto fail1; - } - - ab->irq_num_vbus_rise = platform_get_irq_byname(pdev, "VBUS_DET_R"); - if (ab->irq_num_vbus_rise < 0) { - dev_err(&pdev->dev, "VBUS rise irq not found\n"); - return ab->irq_num_vbus_rise; - } - err = request_threaded_irq(ab->irq_num_vbus_rise, NULL, - ab8500_usb_v1x_common_irq, - IRQF_NO_SUSPEND | IRQF_SHARED, - "usb-vbus-rise", ab); - if (err < 0) { - dev_err(ab->dev, "request_irq failed for Vbus rise irq\n"); - goto fail2; - } - - ab->irq_num_vbus_fall = platform_get_irq_byname(pdev, "VBUS_DET_F"); - if (ab->irq_num_vbus_fall < 0) { - dev_err(&pdev->dev, "VBUS fall irq not found\n"); - return ab->irq_num_vbus_fall; - } - err = request_threaded_irq(ab->irq_num_vbus_fall, NULL, - ab8500_usb_v1x_vbus_fall_irq, - IRQF_NO_SUSPEND | IRQF_SHARED, - "usb-vbus-fall", ab); - if (err < 0) { - dev_err(ab->dev, "request_irq failed for Vbus fall irq\n"); - goto fail3; - } - - return 0; -fail3: - free_irq(ab->irq_num_vbus_rise, ab); -fail2: - free_irq(ab->irq_num_id_fall, ab); -fail1: - free_irq(ab->irq_num_id_rise, ab); -fail0: - return err; -} - -static int ab8500_usb_v2_res_setup(struct platform_device *pdev, - struct ab8500_usb *ab) -{ - int err; - - ab->irq_num_link_status = platform_get_irq_byname(pdev, - "USB_LINK_STATUS"); - if (ab->irq_num_link_status < 0) { - dev_err(&pdev->dev, "Link status irq not found\n"); - return ab->irq_num_link_status; - } - - err = request_threaded_irq(ab->irq_num_link_status, NULL, - ab8500_usb_v20_irq, - IRQF_NO_SUSPEND | IRQF_SHARED, - "usb-link-status", ab); - if (err < 0) { - dev_err(ab->dev, - "request_irq failed for link status irq\n"); - return err; - } - - return 0; -} - -static int ab8500_usb_probe(struct platform_device *pdev) -{ - struct ab8500_usb *ab; - struct usb_otg *otg; - int err; - int rev; - - rev = abx500_get_chip_id(&pdev->dev); - if (rev < 0) { - dev_err(&pdev->dev, "Chip id read failed\n"); - return rev; - } else if (rev < 0x10) { - dev_err(&pdev->dev, "Unsupported AB8500 chip\n"); - return -ENODEV; - } - - ab = kzalloc(sizeof *ab, GFP_KERNEL); - if (!ab) - return -ENOMEM; - - otg = kzalloc(sizeof *otg, GFP_KERNEL); - if (!otg) { - kfree(ab); - return -ENOMEM; - } - - ab->dev = &pdev->dev; - ab->rev = rev; - ab->phy.dev = ab->dev; - ab->phy.otg = otg; - ab->phy.label = "ab8500"; - ab->phy.set_suspend = ab8500_usb_set_suspend; - ab->phy.set_power = ab8500_usb_set_power; - ab->phy.state = OTG_STATE_UNDEFINED; - - otg->phy = &ab->phy; - otg->set_host = ab8500_usb_set_host; - otg->set_peripheral = ab8500_usb_set_peripheral; - - platform_set_drvdata(pdev, ab); - - ATOMIC_INIT_NOTIFIER_HEAD(&ab->phy.notifier); - - /* v1: Wait for link status to become stable. - * all: Updates form set_host and set_peripheral as they are atomic. - */ - INIT_DELAYED_WORK(&ab->dwork, ab8500_usb_delayed_work); - - /* all: Disable phy when called from set_host and set_peripheral */ - INIT_WORK(&ab->phy_dis_work, ab8500_usb_phy_disable_work); - - if (ab->rev < 0x20) { - err = ab8500_usb_v1x_res_setup(pdev, ab); - ab->link_status_wait = AB8500_V1x_LINK_STAT_WAIT; - } else { - err = ab8500_usb_v2_res_setup(pdev, ab); - } - - if (err < 0) - goto fail0; - - err = usb_add_phy(&ab->phy, USB_PHY_TYPE_USB2); - if (err) { - dev_err(&pdev->dev, "Can't register transceiver\n"); - goto fail1; - } - - dev_info(&pdev->dev, "AB8500 usb driver initialized\n"); - - return 0; -fail1: - ab8500_usb_irq_free(ab); -fail0: - kfree(otg); - kfree(ab); - return err; -} - -static int ab8500_usb_remove(struct platform_device *pdev) -{ - struct ab8500_usb *ab = platform_get_drvdata(pdev); - - ab8500_usb_irq_free(ab); - - cancel_delayed_work_sync(&ab->dwork); - - cancel_work_sync(&ab->phy_dis_work); - - usb_remove_phy(&ab->phy); - - ab8500_usb_host_phy_dis(ab); - ab8500_usb_peri_phy_dis(ab); - - platform_set_drvdata(pdev, NULL); - - kfree(ab->phy.otg); - kfree(ab); - - return 0; -} - -static struct platform_driver ab8500_usb_driver = { - .probe = ab8500_usb_probe, - .remove = ab8500_usb_remove, - .driver = { - .name = "ab8500-usb", - .owner = THIS_MODULE, - }, -}; - -static int __init ab8500_usb_init(void) -{ - return platform_driver_register(&ab8500_usb_driver); -} -subsys_initcall(ab8500_usb_init); - -static void __exit ab8500_usb_exit(void) -{ - platform_driver_unregister(&ab8500_usb_driver); -} -module_exit(ab8500_usb_exit); - -MODULE_ALIAS("platform:ab8500_usb"); -MODULE_AUTHOR("ST-Ericsson AB"); -MODULE_DESCRIPTION("AB8500 usb transceiver driver"); -MODULE_LICENSE("GPL"); diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig index 90549382eba5..3a7fec957ca7 100644 --- a/drivers/usb/phy/Kconfig +++ b/drivers/usb/phy/Kconfig @@ -1,13 +1,74 @@ # # Physical Layer USB driver configuration # -comment "USB Physical Layer drivers" - depends on USB || USB_GADGET +menuconfig USB_PHY + tristate "USB Physical Layer drivers" + help + USB controllers (those which are host, device or DRD) need a + device to handle the physical layer signalling, commonly called + a PHY. + + The following drivers add support for such PHY devices. + +if USB_PHY + +# +# USB Transceiver Drivers +# +config AB8500_USB + tristate "AB8500 USB Transceiver Driver" + depends on AB8500_CORE + help + Enable this to support the USB OTG transceiver in AB8500 chip. + This transceiver supports high and full speed devices plus, + in host mode, low speed. + +config FSL_USB2_OTG + bool "Freescale USB OTG Transceiver Driver" + depends on USB_EHCI_FSL && USB_FSL_USB2 && USB_SUSPEND + select USB_OTG + help + Enable this to support Freescale USB OTG transceiver. + +config ISP1301_OMAP + tristate "Philips ISP1301 with OMAP OTG" + depends on I2C && ARCH_OMAP_OTG + help + If you say yes here you get support for the Philips ISP1301 + USB-On-The-Go transceiver working with the OMAP OTG controller. + The ISP1301 is a full speed USB transceiver which is used in + products including H2, H3, and H4 development boards for Texas + Instruments OMAP processors. + + This driver can also be built as a module. If so, the module + will be called isp1301_omap. + +config MV_U3D_PHY + bool "Marvell USB 3.0 PHY controller Driver" + depends on CPU_MMP3 + help + Enable this to support Marvell USB 3.0 phy controller for Marvell + SoC. + +config NOP_USB_XCEIV + tristate "NOP USB Transceiver Driver" + help + This driver is to be used by all the usb transceiver which are either + built-in with usb ip or which are autonomous and doesn't require any + phy programming such as ISP1x04 etc. + +config OMAP_CONTROL_USB + tristate "OMAP CONTROL USB Driver" + help + Enable this to add support for the USB part present in the control + module. This driver has API to power on the USB2 PHY and to write to + the mailbox. The mailbox is present only in omap4 and the register to + power on the USB2 PHY is present in OMAP4 and OMAP5. OMAP5 has an + additional register to power on USB3 PHY. config OMAP_USB2 tristate "OMAP USB2 PHY Driver" depends on ARCH_OMAP2PLUS - select USB_OTG_UTILS select OMAP_CONTROL_USB help Enable this to support the transceiver that is part of SOC. This @@ -17,7 +78,6 @@ config OMAP_USB2 config OMAP_USB3 tristate "OMAP USB3 PHY Driver" - select USB_OTG_UTILS select OMAP_CONTROL_USB help Enable this to support the USB3 PHY that is part of SOC. This @@ -25,14 +85,55 @@ config OMAP_USB3 This driver interacts with the "OMAP Control USB Driver" to power on/off the PHY. -config OMAP_CONTROL_USB - tristate "OMAP CONTROL USB Driver" +config SAMSUNG_USBPHY + tristate "Samsung USB PHY Driver" help - Enable this to add support for the USB part present in the control - module. This driver has API to power on the USB2 PHY and to write to - the mailbox. The mailbox is present only in omap4 and the register to - power on the USB2 PHY is present in OMAP4 and OMAP5. OMAP5 has an - additional register to power on USB3 PHY. + Enable this to support Samsung USB phy helper driver for Samsung SoCs. + This driver provides common interface to interact, for Samsung USB 2.0 PHY + driver and later for Samsung USB 3.0 PHY driver. + +config SAMSUNG_USB2PHY + tristate "Samsung USB 2.0 PHY controller Driver" + select SAMSUNG_USBPHY + help + Enable this to support Samsung USB 2.0 (High Speed) PHY controller + driver for Samsung SoCs. + +config SAMSUNG_USB3PHY + tristate "Samsung USB 3.0 PHY controller Driver" + select SAMSUNG_USBPHY + help + Enable this to support Samsung USB 3.0 (Super Speed) phy controller + for samsung SoCs. + +config TWL4030_USB + tristate "TWL4030 USB Transceiver Driver" + depends on TWL4030_CORE && REGULATOR_TWL4030 && USB_MUSB_OMAP2PLUS + help + Enable this to support the USB OTG transceiver on TWL4030 + family chips (including the TWL5030 and TPS659x0 devices). + This transceiver supports high and full speed devices plus, + in host mode, low speed. + +config TWL6030_USB + tristate "TWL6030 USB Transceiver Driver" + depends on TWL4030_CORE && OMAP_USB2 && USB_MUSB_OMAP2PLUS + help + Enable this to support the USB OTG transceiver on TWL6030 + family chips. This TWL6030 transceiver has the VBUS and ID GND + and OTG SRP events capabilities. For all other transceiver functionality + UTMI PHY is embedded in OMAP4430. The internal PHY configurations APIs + are hooked to this driver through platform_data structure. + The definition of internal PHY APIs are in the mach-omap2 layer. + +config USB_GPIO_VBUS + tristate "GPIO based peripheral-only VBUS sensing 'transceiver'" + depends on GENERIC_GPIO + help + Provides simple GPIO VBUS sensing for controllers with an + internal transceiver via the usb_phy interface, and + optionally control of a D+ pullup GPIO as well as a VBUS + current limit regulator. config USB_ISP1301 tristate "NXP ISP1301 USB transceiver support" @@ -47,18 +148,41 @@ config USB_ISP1301 To compile this driver as a module, choose M here: the module will be called isp1301. -config MV_U3D_PHY - bool "Marvell USB 3.0 PHY controller Driver" - depends on USB_MV_U3D - select USB_OTG_UTILS +config USB_MSM_OTG + tristate "OTG support for Qualcomm on-chip USB controller" + depends on (USB || USB_GADGET) && ARCH_MSM help - Enable this to support Marvell USB 3.0 phy controller for Marvell - SoC. + Enable this to support the USB OTG transceiver on MSM chips. It + handles PHY initialization, clock management, and workarounds + required after resetting the hardware and power management. + This driver is required even for peripheral only or host only + mode configurations. + This driver is not supported on boards like trout which + has an external PHY. + +config USB_MV_OTG + tristate "Marvell USB OTG support" + depends on USB_EHCI_MV && USB_MV_UDC && USB_SUSPEND + select USB_OTG + help + Say Y here if you want to build Marvell USB OTG transciever + driver in kernel (including PXA and MMP series). This driver + implements role switch between EHCI host driver and gadget driver. + + To compile this driver as a module, choose M here. + +config USB_MXS_PHY + tristate "Freescale MXS USB PHY support" + depends on ARCH_MXC || ARCH_MXS + select STMP_DEVICE + help + Enable this to support the Freescale MXS USB PHY. + + MXS Phy is used by some of the i.MX SoCs, for example imx23/28/6x. config USB_RCAR_PHY tristate "Renesas R-Car USB phy support" depends on USB || USB_GADGET - select USB_OTG_UTILS help Say Y here to add support for the Renesas R-Car USB phy driver. This chip is typically used as USB phy for USB host, gadget. @@ -67,10 +191,18 @@ config USB_RCAR_PHY To compile this driver as a module, choose M here: the module will be called rcar-phy. -config SAMSUNG_USBPHY - bool "Samsung USB PHY controller Driver" - depends on USB_S3C_HSOTG || USB_EHCI_S5P || USB_OHCI_EXYNOS - select USB_OTG_UTILS +config USB_ULPI + bool "Generic ULPI Transceiver Driver" + depends on ARM + help + Enable this to support ULPI connected USB OTG transceivers which + are likely found on embedded boards. + +config USB_ULPI_VIEWPORT + bool + depends on USB_ULPI help - Enable this to support Samsung USB phy controller for samsung - SoCs. + Provides read/write operations to the ULPI phy register set for + controllers with a viewport register (e.g. Chipidea/ARC controllers). + +endif # USB_PHY diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile index b13faa193e0c..33863c09f3dc 100644 --- a/drivers/usb/phy/Makefile +++ b/drivers/usb/phy/Makefile @@ -4,11 +4,30 @@ ccflags-$(CONFIG_USB_DEBUG) := -DDEBUG -obj-$(CONFIG_OMAP_USB2) += omap-usb2.o -obj-$(CONFIG_OMAP_USB3) += omap-usb3.o -obj-$(CONFIG_OMAP_CONTROL_USB) += omap-control-usb.o -obj-$(CONFIG_USB_ISP1301) += isp1301.o -obj-$(CONFIG_MV_U3D_PHY) += mv_u3d_phy.o -obj-$(CONFIG_USB_EHCI_TEGRA) += tegra_usb_phy.o -obj-$(CONFIG_USB_RCAR_PHY) += rcar-phy.o -obj-$(CONFIG_SAMSUNG_USBPHY) += samsung-usbphy.o +obj-$(CONFIG_USB_PHY) += phy.o + +# transceiver drivers, keep the list sorted + +obj-$(CONFIG_AB8500_USB) += phy-ab8500-usb.o +phy-fsl-usb2-objs := phy-fsl-usb.o phy-fsm-usb.o +obj-$(CONFIG_FSL_USB2_OTG) += phy-fsl-usb2.o +obj-$(CONFIG_ISP1301_OMAP) += phy-isp1301.omap.o +obj-$(CONFIG_MV_U3D_PHY) += phy-mv-u3d-usb.o +obj-$(CONFIG_NOP_USB_XCEIV) += phy-nop.o +obj-$(CONFIG_OMAP_CONTROL_USB) += phy-omap-control.o +obj-$(CONFIG_OMAP_USB2) += phy-omap-usb2.o +obj-$(CONFIG_OMAP_USB3) += phy-omap-usb3.o +obj-$(CONFIG_SAMSUNG_USBPHY) += phy-samsung-usb.o +obj-$(CONFIG_SAMSUNG_USB2PHY) += phy-samsung-usb2.o +obj-$(CONFIG_SAMSUNG_USB3PHY) += phy-samsung-usb3.o +obj-$(CONFIG_TWL4030_USB) += phy-twl4030-usb.o +obj-$(CONFIG_TWL6030_USB) += phy-twl6030-usb.o +obj-$(CONFIG_USB_EHCI_TEGRA) += phy-tegra-usb.o +obj-$(CONFIG_USB_GPIO_VBUS) += phy-gpio-vbus-usb.o +obj-$(CONFIG_USB_ISP1301) += phy-isp1301.o +obj-$(CONFIG_USB_MSM_OTG) += phy-msm-usb.o +obj-$(CONFIG_USB_MV_OTG) += phy-mv-usb.o +obj-$(CONFIG_USB_MXS_PHY) += phy-mxs-usb.o +obj-$(CONFIG_USB_RCAR_PHY) += phy-rcar-usb.o +obj-$(CONFIG_USB_ULPI) += phy-ulpi.o +obj-$(CONFIG_USB_ULPI_VIEWPORT) += phy-ulpi-viewport.o diff --git a/drivers/usb/phy/isp1301.c b/drivers/usb/phy/isp1301.c deleted file mode 100644 index 18dbf7e37607..000000000000 --- a/drivers/usb/phy/isp1301.c +++ /dev/null @@ -1,71 +0,0 @@ -/* - * NXP ISP1301 USB transceiver driver - * - * Copyright (C) 2012 Roland Stigge - * - * Author: Roland Stigge <stigge@antcom.de> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/module.h> -#include <linux/i2c.h> - -#define DRV_NAME "isp1301" - -static const struct i2c_device_id isp1301_id[] = { - { "isp1301", 0 }, - { } -}; - -static struct i2c_client *isp1301_i2c_client; - -static int isp1301_probe(struct i2c_client *client, - const struct i2c_device_id *i2c_id) -{ - isp1301_i2c_client = client; - return 0; -} - -static int isp1301_remove(struct i2c_client *client) -{ - return 0; -} - -static struct i2c_driver isp1301_driver = { - .driver = { - .name = DRV_NAME, - }, - .probe = isp1301_probe, - .remove = isp1301_remove, - .id_table = isp1301_id, -}; - -module_i2c_driver(isp1301_driver); - -static int match(struct device *dev, void *data) -{ - struct device_node *node = (struct device_node *)data; - return (dev->of_node == node) && - (dev->driver == &isp1301_driver.driver); -} - -struct i2c_client *isp1301_get_client(struct device_node *node) -{ - if (node) { /* reference of ISP1301 I2C node via DT */ - struct device *dev = bus_find_device(&i2c_bus_type, NULL, - node, match); - if (!dev) - return NULL; - return to_i2c_client(dev); - } else { /* non-DT: only one ISP1301 chip supported */ - return isp1301_i2c_client; - } -} -EXPORT_SYMBOL_GPL(isp1301_get_client); - -MODULE_AUTHOR("Roland Stigge <stigge@antcom.de>"); -MODULE_DESCRIPTION("NXP ISP1301 USB transceiver driver"); -MODULE_LICENSE("GPL"); diff --git a/drivers/usb/phy/phy-ab8500-usb.c b/drivers/usb/phy/phy-ab8500-usb.c new file mode 100644 index 000000000000..4acef26a2ef5 --- /dev/null +++ b/drivers/usb/phy/phy-ab8500-usb.c @@ -0,0 +1,924 @@ +/* + * drivers/usb/otg/ab8500_usb.c + * + * USB transceiver driver for AB8500 chip + * + * Copyright (C) 2010 ST-Ericsson AB + * Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/usb/otg.h> +#include <linux/slab.h> +#include <linux/notifier.h> +#include <linux/interrupt.h> +#include <linux/delay.h> +#include <linux/mfd/abx500.h> +#include <linux/mfd/abx500/ab8500.h> +#include <linux/usb/musb-ux500.h> +#include <linux/regulator/consumer.h> +#include <linux/pinctrl/consumer.h> + +/* Bank AB8500_SYS_CTRL2_BLOCK */ +#define AB8500_MAIN_WD_CTRL_REG 0x01 + +/* Bank AB8500_USB */ +#define AB8500_USB_LINE_STAT_REG 0x80 +#define AB8505_USB_LINE_STAT_REG 0x94 +#define AB8500_USB_PHY_CTRL_REG 0x8A + +/* Bank AB8500_DEVELOPMENT */ +#define AB8500_BANK12_ACCESS 0x00 + +/* Bank AB8500_DEBUG */ +#define AB8500_USB_PHY_TUNE1 0x05 +#define AB8500_USB_PHY_TUNE2 0x06 +#define AB8500_USB_PHY_TUNE3 0x07 + +#define AB8500_BIT_OTG_STAT_ID (1 << 0) +#define AB8500_BIT_PHY_CTRL_HOST_EN (1 << 0) +#define AB8500_BIT_PHY_CTRL_DEVICE_EN (1 << 1) +#define AB8500_BIT_WD_CTRL_ENABLE (1 << 0) +#define AB8500_BIT_WD_CTRL_KICK (1 << 1) + +#define AB8500_WD_KICK_DELAY_US 100 /* usec */ +#define AB8500_WD_V11_DISABLE_DELAY_US 100 /* usec */ +#define AB8500_V20_31952_DISABLE_DELAY_US 100 /* usec */ + +/* Usb line status register */ +enum ab8500_usb_link_status { + USB_LINK_NOT_CONFIGURED_8500 = 0, + USB_LINK_STD_HOST_NC_8500, + USB_LINK_STD_HOST_C_NS_8500, + USB_LINK_STD_HOST_C_S_8500, + USB_LINK_HOST_CHG_NM_8500, + USB_LINK_HOST_CHG_HS_8500, + USB_LINK_HOST_CHG_HS_CHIRP_8500, + USB_LINK_DEDICATED_CHG_8500, + USB_LINK_ACA_RID_A_8500, + USB_LINK_ACA_RID_B_8500, + USB_LINK_ACA_RID_C_NM_8500, + USB_LINK_ACA_RID_C_HS_8500, + USB_LINK_ACA_RID_C_HS_CHIRP_8500, + USB_LINK_HM_IDGND_8500, + USB_LINK_RESERVED_8500, + USB_LINK_NOT_VALID_LINK_8500, +}; + +enum ab8505_usb_link_status { + USB_LINK_NOT_CONFIGURED_8505 = 0, + USB_LINK_STD_HOST_NC_8505, + USB_LINK_STD_HOST_C_NS_8505, + USB_LINK_STD_HOST_C_S_8505, + USB_LINK_CDP_8505, + USB_LINK_RESERVED0_8505, + USB_LINK_RESERVED1_8505, + USB_LINK_DEDICATED_CHG_8505, + USB_LINK_ACA_RID_A_8505, + USB_LINK_ACA_RID_B_8505, + USB_LINK_ACA_RID_C_NM_8505, + USB_LINK_RESERVED2_8505, + USB_LINK_RESERVED3_8505, + USB_LINK_HM_IDGND_8505, + USB_LINK_CHARGERPORT_NOT_OK_8505, + USB_LINK_CHARGER_DM_HIGH_8505, + USB_LINK_PHYEN_NO_VBUS_NO_IDGND_8505, + USB_LINK_STD_UPSTREAM_NO_IDGNG_NO_VBUS_8505, + USB_LINK_STD_UPSTREAM_8505, + USB_LINK_CHARGER_SE1_8505, + USB_LINK_CARKIT_CHGR_1_8505, + USB_LINK_CARKIT_CHGR_2_8505, + USB_LINK_ACA_DOCK_CHGR_8505, + USB_LINK_SAMSUNG_BOOT_CBL_PHY_EN_8505, + USB_LINK_SAMSUNG_BOOT_CBL_PHY_DISB_8505, + USB_LINK_SAMSUNG_UART_CBL_PHY_EN_8505, + USB_LINK_SAMSUNG_UART_CBL_PHY_DISB_8505, + USB_LINK_MOTOROLA_FACTORY_CBL_PHY_EN_8505, +}; + +enum ab8500_usb_mode { + USB_IDLE = 0, + USB_PERIPHERAL, + USB_HOST, + USB_DEDICATED_CHG +}; + +struct ab8500_usb { + struct usb_phy phy; + struct device *dev; + struct ab8500 *ab8500; + unsigned vbus_draw; + struct work_struct phy_dis_work; + enum ab8500_usb_mode mode; + struct regulator *v_ape; + struct regulator *v_musb; + struct regulator *v_ulpi; + int saved_v_ulpi; + int previous_link_status_state; + struct pinctrl *pinctrl; + struct pinctrl_state *pins_sleep; +}; + +static inline struct ab8500_usb *phy_to_ab(struct usb_phy *x) +{ + return container_of(x, struct ab8500_usb, phy); +} + +static void ab8500_usb_wd_workaround(struct ab8500_usb *ab) +{ + abx500_set_register_interruptible(ab->dev, + AB8500_SYS_CTRL2_BLOCK, + AB8500_MAIN_WD_CTRL_REG, + AB8500_BIT_WD_CTRL_ENABLE); + + udelay(AB8500_WD_KICK_DELAY_US); + + abx500_set_register_interruptible(ab->dev, + AB8500_SYS_CTRL2_BLOCK, + AB8500_MAIN_WD_CTRL_REG, + (AB8500_BIT_WD_CTRL_ENABLE + | AB8500_BIT_WD_CTRL_KICK)); + + udelay(AB8500_WD_V11_DISABLE_DELAY_US); + + abx500_set_register_interruptible(ab->dev, + AB8500_SYS_CTRL2_BLOCK, + AB8500_MAIN_WD_CTRL_REG, + 0); +} + +static void ab8500_usb_regulator_enable(struct ab8500_usb *ab) +{ + int ret, volt; + + ret = regulator_enable(ab->v_ape); + if (ret) + dev_err(ab->dev, "Failed to enable v-ape\n"); + + if (!is_ab8500_2p0_or_earlier(ab->ab8500)) { + ab->saved_v_ulpi = regulator_get_voltage(ab->v_ulpi); + if (ab->saved_v_ulpi < 0) + dev_err(ab->dev, "Failed to get v_ulpi voltage\n"); + + ret = regulator_set_voltage(ab->v_ulpi, 1300000, 1350000); + if (ret < 0) + dev_err(ab->dev, "Failed to set the Vintcore to 1.3V, ret=%d\n", + ret); + + ret = regulator_set_optimum_mode(ab->v_ulpi, 28000); + if (ret < 0) + dev_err(ab->dev, "Failed to set optimum mode (ret=%d)\n", + ret); + } + + ret = regulator_enable(ab->v_ulpi); + if (ret) + dev_err(ab->dev, "Failed to enable vddulpivio18\n"); + + if (!is_ab8500_2p0_or_earlier(ab->ab8500)) { + volt = regulator_get_voltage(ab->v_ulpi); + if ((volt != 1300000) && (volt != 1350000)) + dev_err(ab->dev, "Vintcore is not set to 1.3V volt=%d\n", + volt); + } + + ret = regulator_enable(ab->v_musb); + if (ret) + dev_err(ab->dev, "Failed to enable musb_1v8\n"); +} + +static void ab8500_usb_regulator_disable(struct ab8500_usb *ab) +{ + int ret; + + regulator_disable(ab->v_musb); + + regulator_disable(ab->v_ulpi); + + /* USB is not the only consumer of Vintcore, restore old settings */ + if (!is_ab8500_2p0_or_earlier(ab->ab8500)) { + if (ab->saved_v_ulpi > 0) { + ret = regulator_set_voltage(ab->v_ulpi, + ab->saved_v_ulpi, ab->saved_v_ulpi); + if (ret < 0) + dev_err(ab->dev, "Failed to set the Vintcore to %duV, ret=%d\n", + ab->saved_v_ulpi, ret); + } + + ret = regulator_set_optimum_mode(ab->v_ulpi, 0); + if (ret < 0) + dev_err(ab->dev, "Failed to set optimum mode (ret=%d)\n", + ret); + } + + regulator_disable(ab->v_ape); +} + +static void ab8500_usb_wd_linkstatus(struct ab8500_usb *ab, u8 bit) +{ + /* Workaround for v2.0 bug # 31952 */ + if (is_ab8500_2p0(ab->ab8500)) { + abx500_mask_and_set_register_interruptible(ab->dev, + AB8500_USB, AB8500_USB_PHY_CTRL_REG, + bit, bit); + udelay(AB8500_V20_31952_DISABLE_DELAY_US); + } +} + +static void ab8500_usb_phy_enable(struct ab8500_usb *ab, bool sel_host) +{ + u8 bit; + bit = sel_host ? AB8500_BIT_PHY_CTRL_HOST_EN : + AB8500_BIT_PHY_CTRL_DEVICE_EN; + + /* mux and configure USB pins to DEFAULT state */ + ab->pinctrl = pinctrl_get_select(ab->dev, PINCTRL_STATE_DEFAULT); + if (IS_ERR(ab->pinctrl)) + dev_err(ab->dev, "could not get/set default pinstate\n"); + + ab8500_usb_regulator_enable(ab); + + abx500_mask_and_set_register_interruptible(ab->dev, + AB8500_USB, AB8500_USB_PHY_CTRL_REG, + bit, bit); +} + +static void ab8500_usb_phy_disable(struct ab8500_usb *ab, bool sel_host) +{ + u8 bit; + bit = sel_host ? AB8500_BIT_PHY_CTRL_HOST_EN : + AB8500_BIT_PHY_CTRL_DEVICE_EN; + + ab8500_usb_wd_linkstatus(ab, bit); + + abx500_mask_and_set_register_interruptible(ab->dev, + AB8500_USB, AB8500_USB_PHY_CTRL_REG, + bit, 0); + + /* Needed to disable the phy.*/ + ab8500_usb_wd_workaround(ab); + + ab8500_usb_regulator_disable(ab); + + if (!IS_ERR(ab->pinctrl)) { + /* configure USB pins to SLEEP state */ + ab->pins_sleep = pinctrl_lookup_state(ab->pinctrl, + PINCTRL_STATE_SLEEP); + + if (IS_ERR(ab->pins_sleep)) + dev_dbg(ab->dev, "could not get sleep pinstate\n"); + else if (pinctrl_select_state(ab->pinctrl, ab->pins_sleep)) + dev_err(ab->dev, "could not set pins to sleep state\n"); + + /* as USB pins are shared with idddet, release them to allow + * iddet to request them + */ + pinctrl_put(ab->pinctrl); + } +} + +#define ab8500_usb_host_phy_en(ab) ab8500_usb_phy_enable(ab, true) +#define ab8500_usb_host_phy_dis(ab) ab8500_usb_phy_disable(ab, true) +#define ab8500_usb_peri_phy_en(ab) ab8500_usb_phy_enable(ab, false) +#define ab8500_usb_peri_phy_dis(ab) ab8500_usb_phy_disable(ab, false) + +static int ab8505_usb_link_status_update(struct ab8500_usb *ab, + enum ab8505_usb_link_status lsts) +{ + enum ux500_musb_vbus_id_status event = 0; + + dev_dbg(ab->dev, "ab8505_usb_link_status_update %d\n", lsts); + + /* + * Spurious link_status interrupts are seen at the time of + * disconnection of a device in RIDA state + */ + if (ab->previous_link_status_state == USB_LINK_ACA_RID_A_8505 && + (lsts == USB_LINK_STD_HOST_NC_8505)) + return 0; + + ab->previous_link_status_state = lsts; + + switch (lsts) { + case USB_LINK_ACA_RID_B_8505: + event = UX500_MUSB_RIDB; + case USB_LINK_NOT_CONFIGURED_8505: + case USB_LINK_RESERVED0_8505: + case USB_LINK_RESERVED1_8505: + case USB_LINK_RESERVED2_8505: + case USB_LINK_RESERVED3_8505: + ab->mode = USB_IDLE; + ab->phy.otg->default_a = false; + ab->vbus_draw = 0; + if (event != UX500_MUSB_RIDB) + event = UX500_MUSB_NONE; + /* + * Fallback to default B_IDLE as nothing + * is connected + */ + ab->phy.state = OTG_STATE_B_IDLE; + break; + + case USB_LINK_ACA_RID_C_NM_8505: + event = UX500_MUSB_RIDC; + case USB_LINK_STD_HOST_NC_8505: + case USB_LINK_STD_HOST_C_NS_8505: + case USB_LINK_STD_HOST_C_S_8505: + case USB_LINK_CDP_8505: + if (ab->mode == USB_IDLE) { + ab->mode = USB_PERIPHERAL; + ab8500_usb_peri_phy_en(ab); + atomic_notifier_call_chain(&ab->phy.notifier, + UX500_MUSB_PREPARE, &ab->vbus_draw); + } + if (event != UX500_MUSB_RIDC) + event = UX500_MUSB_VBUS; + break; + + case USB_LINK_ACA_RID_A_8505: + case USB_LINK_ACA_DOCK_CHGR_8505: + event = UX500_MUSB_RIDA; + case USB_LINK_HM_IDGND_8505: + if (ab->mode == USB_IDLE) { + ab->mode = USB_HOST; + ab8500_usb_host_phy_en(ab); + atomic_notifier_call_chain(&ab->phy.notifier, + UX500_MUSB_PREPARE, &ab->vbus_draw); + } + ab->phy.otg->default_a = true; + if (event != UX500_MUSB_RIDA) + event = UX500_MUSB_ID; + atomic_notifier_call_chain(&ab->phy.notifier, + event, &ab->vbus_draw); + break; + + case USB_LINK_DEDICATED_CHG_8505: + ab->mode = USB_DEDICATED_CHG; + event = UX500_MUSB_CHARGER; + atomic_notifier_call_chain(&ab->phy.notifier, + event, &ab->vbus_draw); + break; + + default: + break; + } + + return 0; +} + +static int ab8500_usb_link_status_update(struct ab8500_usb *ab, + enum ab8500_usb_link_status lsts) +{ + enum ux500_musb_vbus_id_status event = 0; + + dev_dbg(ab->dev, "ab8500_usb_link_status_update %d\n", lsts); + + /* + * Spurious link_status interrupts are seen in case of a + * disconnection of a device in IDGND and RIDA stage + */ + if (ab->previous_link_status_state == USB_LINK_HM_IDGND_8500 && + (lsts == USB_LINK_STD_HOST_C_NS_8500 || + lsts == USB_LINK_STD_HOST_NC_8500)) + return 0; + + if (ab->previous_link_status_state == USB_LINK_ACA_RID_A_8500 && + lsts == USB_LINK_STD_HOST_NC_8500) + return 0; + + ab->previous_link_status_state = lsts; + + switch (lsts) { + case USB_LINK_ACA_RID_B_8500: + event = UX500_MUSB_RIDB; + case USB_LINK_NOT_CONFIGURED_8500: + case USB_LINK_NOT_VALID_LINK_8500: + ab->mode = USB_IDLE; + ab->phy.otg->default_a = false; + ab->vbus_draw = 0; + if (event != UX500_MUSB_RIDB) + event = UX500_MUSB_NONE; + /* Fallback to default B_IDLE as nothing is connected */ + ab->phy.state = OTG_STATE_B_IDLE; + break; + + case USB_LINK_ACA_RID_C_NM_8500: + case USB_LINK_ACA_RID_C_HS_8500: + case USB_LINK_ACA_RID_C_HS_CHIRP_8500: + event = UX500_MUSB_RIDC; + case USB_LINK_STD_HOST_NC_8500: + case USB_LINK_STD_HOST_C_NS_8500: + case USB_LINK_STD_HOST_C_S_8500: + case USB_LINK_HOST_CHG_NM_8500: + case USB_LINK_HOST_CHG_HS_8500: + case USB_LINK_HOST_CHG_HS_CHIRP_8500: + if (ab->mode == USB_IDLE) { + ab->mode = USB_PERIPHERAL; + ab8500_usb_peri_phy_en(ab); + atomic_notifier_call_chain(&ab->phy.notifier, + UX500_MUSB_PREPARE, &ab->vbus_draw); + } + if (event != UX500_MUSB_RIDC) + event = UX500_MUSB_VBUS; + break; + + case USB_LINK_ACA_RID_A_8500: + event = UX500_MUSB_RIDA; + case USB_LINK_HM_IDGND_8500: + if (ab->mode == USB_IDLE) { + ab->mode = USB_HOST; + ab8500_usb_host_phy_en(ab); + atomic_notifier_call_chain(&ab->phy.notifier, + UX500_MUSB_PREPARE, &ab->vbus_draw); + } + ab->phy.otg->default_a = true; + if (event != UX500_MUSB_RIDA) + event = UX500_MUSB_ID; + atomic_notifier_call_chain(&ab->phy.notifier, + event, &ab->vbus_draw); + break; + + case USB_LINK_DEDICATED_CHG_8500: + ab->mode = USB_DEDICATED_CHG; + event = UX500_MUSB_CHARGER; + atomic_notifier_call_chain(&ab->phy.notifier, + event, &ab->vbus_draw); + break; + + case USB_LINK_RESERVED_8500: + break; + } + + return 0; +} + +/* + * Connection Sequence: + * 1. Link Status Interrupt + * 2. Enable AB clock + * 3. Enable AB regulators + * 4. Enable USB phy + * 5. Reset the musb controller + * 6. Switch the ULPI GPIO pins to fucntion mode + * 7. Enable the musb Peripheral5 clock + * 8. Restore MUSB context + */ +static int abx500_usb_link_status_update(struct ab8500_usb *ab) +{ + u8 reg; + int ret = 0; + + if (is_ab8500(ab->ab8500)) { + enum ab8500_usb_link_status lsts; + + abx500_get_register_interruptible(ab->dev, + AB8500_USB, AB8500_USB_LINE_STAT_REG, ®); + lsts = (reg >> 3) & 0x0F; + ret = ab8500_usb_link_status_update(ab, lsts); + } else if (is_ab8505(ab->ab8500)) { + enum ab8505_usb_link_status lsts; + + abx500_get_register_interruptible(ab->dev, + AB8500_USB, AB8505_USB_LINE_STAT_REG, ®); + lsts = (reg >> 3) & 0x1F; + ret = ab8505_usb_link_status_update(ab, lsts); + } + + return ret; +} + +/* + * Disconnection Sequence: + * 1. Disconect Interrupt + * 2. Disable regulators + * 3. Disable AB clock + * 4. Disable the Phy + * 5. Link Status Interrupt + * 6. Disable Musb Clock + */ +static irqreturn_t ab8500_usb_disconnect_irq(int irq, void *data) +{ + struct ab8500_usb *ab = (struct ab8500_usb *) data; + enum usb_phy_events event = UX500_MUSB_NONE; + + /* Link status will not be updated till phy is disabled. */ + if (ab->mode == USB_HOST) { + ab->phy.otg->default_a = false; + ab->vbus_draw = 0; + atomic_notifier_call_chain(&ab->phy.notifier, + event, &ab->vbus_draw); + ab8500_usb_host_phy_dis(ab); + ab->mode = USB_IDLE; + } + + if (ab->mode == USB_PERIPHERAL) { + atomic_notifier_call_chain(&ab->phy.notifier, + event, &ab->vbus_draw); + ab8500_usb_peri_phy_dis(ab); + atomic_notifier_call_chain(&ab->phy.notifier, + UX500_MUSB_CLEAN, &ab->vbus_draw); + ab->mode = USB_IDLE; + ab->phy.otg->default_a = false; + ab->vbus_draw = 0; + } + + if (is_ab8500_2p0(ab->ab8500)) { + if (ab->mode == USB_DEDICATED_CHG) { + ab8500_usb_wd_linkstatus(ab, + AB8500_BIT_PHY_CTRL_DEVICE_EN); + abx500_mask_and_set_register_interruptible(ab->dev, + AB8500_USB, AB8500_USB_PHY_CTRL_REG, + AB8500_BIT_PHY_CTRL_DEVICE_EN, 0); + } + } + + return IRQ_HANDLED; +} + +static irqreturn_t ab8500_usb_link_status_irq(int irq, void *data) +{ + struct ab8500_usb *ab = (struct ab8500_usb *) data; + + abx500_usb_link_status_update(ab); + + return IRQ_HANDLED; +} + +static void ab8500_usb_phy_disable_work(struct work_struct *work) +{ + struct ab8500_usb *ab = container_of(work, struct ab8500_usb, + phy_dis_work); + + if (!ab->phy.otg->host) + ab8500_usb_host_phy_dis(ab); + + if (!ab->phy.otg->gadget) + ab8500_usb_peri_phy_dis(ab); +} + +static unsigned ab8500_eyediagram_workaroud(struct ab8500_usb *ab, unsigned mA) +{ + /* + * AB8500 V2 has eye diagram issues when drawing more than 100mA from + * VBUS. Set charging current to 100mA in case of standard host + */ + if (is_ab8500_2p0_or_earlier(ab->ab8500)) + if (mA > 100) + mA = 100; + + return mA; +} + +static int ab8500_usb_set_power(struct usb_phy *phy, unsigned mA) +{ + struct ab8500_usb *ab; + + if (!phy) + return -ENODEV; + + ab = phy_to_ab(phy); + + mA = ab8500_eyediagram_workaroud(ab, mA); + + ab->vbus_draw = mA; + + atomic_notifier_call_chain(&ab->phy.notifier, + UX500_MUSB_VBUS, &ab->vbus_draw); + + return 0; +} + +static int ab8500_usb_set_suspend(struct usb_phy *x, int suspend) +{ + /* TODO */ + return 0; +} + +static int ab8500_usb_set_peripheral(struct usb_otg *otg, + struct usb_gadget *gadget) +{ + struct ab8500_usb *ab; + + if (!otg) + return -ENODEV; + + ab = phy_to_ab(otg->phy); + + ab->phy.otg->gadget = gadget; + + /* Some drivers call this function in atomic context. + * Do not update ab8500 registers directly till this + * is fixed. + */ + + if ((ab->mode != USB_IDLE) && (!gadget)) { + ab->mode = USB_IDLE; + schedule_work(&ab->phy_dis_work); + } + + return 0; +} + +static int ab8500_usb_set_host(struct usb_otg *otg, struct usb_bus *host) +{ + struct ab8500_usb *ab; + + if (!otg) + return -ENODEV; + + ab = phy_to_ab(otg->phy); + + ab->phy.otg->host = host; + + /* Some drivers call this function in atomic context. + * Do not update ab8500 registers directly till this + * is fixed. + */ + + if ((ab->mode != USB_IDLE) && (!host)) { + ab->mode = USB_IDLE; + schedule_work(&ab->phy_dis_work); + } + + return 0; +} + +static int ab8500_usb_regulator_get(struct ab8500_usb *ab) +{ + int err; + + ab->v_ape = devm_regulator_get(ab->dev, "v-ape"); + if (IS_ERR(ab->v_ape)) { + dev_err(ab->dev, "Could not get v-ape supply\n"); + err = PTR_ERR(ab->v_ape); + return err; + } + + ab->v_ulpi = devm_regulator_get(ab->dev, "vddulpivio18"); + if (IS_ERR(ab->v_ulpi)) { + dev_err(ab->dev, "Could not get vddulpivio18 supply\n"); + err = PTR_ERR(ab->v_ulpi); + return err; + } + + ab->v_musb = devm_regulator_get(ab->dev, "musb_1v8"); + if (IS_ERR(ab->v_musb)) { + dev_err(ab->dev, "Could not get musb_1v8 supply\n"); + err = PTR_ERR(ab->v_musb); + return err; + } + + return 0; +} + +static int ab8500_usb_irq_setup(struct platform_device *pdev, + struct ab8500_usb *ab) +{ + int err; + int irq; + + irq = platform_get_irq_byname(pdev, "USB_LINK_STATUS"); + if (irq < 0) { + dev_err(&pdev->dev, "Link status irq not found\n"); + return irq; + } + err = devm_request_threaded_irq(&pdev->dev, irq, NULL, + ab8500_usb_link_status_irq, + IRQF_NO_SUSPEND | IRQF_SHARED, "usb-link-status", ab); + if (err < 0) { + dev_err(ab->dev, "request_irq failed for link status irq\n"); + return err; + } + + irq = platform_get_irq_byname(pdev, "ID_WAKEUP_F"); + if (irq < 0) { + dev_err(&pdev->dev, "ID fall irq not found\n"); + return irq; + } + err = devm_request_threaded_irq(&pdev->dev, irq, NULL, + ab8500_usb_disconnect_irq, + IRQF_NO_SUSPEND | IRQF_SHARED, "usb-id-fall", ab); + if (err < 0) { + dev_err(ab->dev, "request_irq failed for ID fall irq\n"); + return err; + } + + irq = platform_get_irq_byname(pdev, "VBUS_DET_F"); + if (irq < 0) { + dev_err(&pdev->dev, "VBUS fall irq not found\n"); + return irq; + } + err = devm_request_threaded_irq(&pdev->dev, irq, NULL, + ab8500_usb_disconnect_irq, + IRQF_NO_SUSPEND | IRQF_SHARED, "usb-vbus-fall", ab); + if (err < 0) { + dev_err(ab->dev, "request_irq failed for Vbus fall irq\n"); + return err; + } + + return 0; +} + +static int ab8500_usb_probe(struct platform_device *pdev) +{ + struct ab8500_usb *ab; + struct ab8500 *ab8500; + struct usb_otg *otg; + int err; + int rev; + + ab8500 = dev_get_drvdata(pdev->dev.parent); + rev = abx500_get_chip_id(&pdev->dev); + + if (is_ab8500_1p1_or_earlier(ab8500)) { + dev_err(&pdev->dev, "Unsupported AB8500 chip rev=%d\n", rev); + return -ENODEV; + } + + ab = devm_kzalloc(&pdev->dev, sizeof(*ab), GFP_KERNEL); + if (!ab) + return -ENOMEM; + + otg = devm_kzalloc(&pdev->dev, sizeof(*otg), GFP_KERNEL); + if (!otg) + return -ENOMEM; + + ab->dev = &pdev->dev; + ab->ab8500 = ab8500; + ab->phy.dev = ab->dev; + ab->phy.otg = otg; + ab->phy.label = "ab8500"; + ab->phy.set_suspend = ab8500_usb_set_suspend; + ab->phy.set_power = ab8500_usb_set_power; + ab->phy.state = OTG_STATE_UNDEFINED; + + otg->phy = &ab->phy; + otg->set_host = ab8500_usb_set_host; + otg->set_peripheral = ab8500_usb_set_peripheral; + + platform_set_drvdata(pdev, ab); + + ATOMIC_INIT_NOTIFIER_HEAD(&ab->phy.notifier); + + /* all: Disable phy when called from set_host and set_peripheral */ + INIT_WORK(&ab->phy_dis_work, ab8500_usb_phy_disable_work); + + err = ab8500_usb_regulator_get(ab); + if (err) + return err; + + err = ab8500_usb_irq_setup(pdev, ab); + if (err < 0) + return err; + + err = usb_add_phy(&ab->phy, USB_PHY_TYPE_USB2); + if (err) { + dev_err(&pdev->dev, "Can't register transceiver\n"); + return err; + } + + /* Phy tuning values for AB8500 */ + if (!is_ab8500_2p0_or_earlier(ab->ab8500)) { + /* Enable the PBT/Bank 0x12 access */ + err = abx500_set_register_interruptible(ab->dev, + AB8500_DEVELOPMENT, AB8500_BANK12_ACCESS, 0x01); + if (err < 0) + dev_err(ab->dev, "Failed to enable bank12 access err=%d\n", + err); + + err = abx500_set_register_interruptible(ab->dev, + AB8500_DEBUG, AB8500_USB_PHY_TUNE1, 0xC8); + if (err < 0) + dev_err(ab->dev, "Failed to set PHY_TUNE1 register err=%d\n", + err); + + err = abx500_set_register_interruptible(ab->dev, + AB8500_DEBUG, AB8500_USB_PHY_TUNE2, 0x00); + if (err < 0) + dev_err(ab->dev, "Failed to set PHY_TUNE2 register err=%d\n", + err); + + err = abx500_set_register_interruptible(ab->dev, + AB8500_DEBUG, AB8500_USB_PHY_TUNE3, 0x78); + if (err < 0) + dev_err(ab->dev, "Failed to set PHY_TUNE3 regester err=%d\n", + err); + + /* Switch to normal mode/disable Bank 0x12 access */ + err = abx500_set_register_interruptible(ab->dev, + AB8500_DEVELOPMENT, AB8500_BANK12_ACCESS, 0x00); + if (err < 0) + dev_err(ab->dev, "Failed to switch bank12 access err=%d\n", + err); + } + + /* Phy tuning values for AB8505 */ + if (is_ab8505(ab->ab8500)) { + /* Enable the PBT/Bank 0x12 access */ + err = abx500_mask_and_set_register_interruptible(ab->dev, + AB8500_DEVELOPMENT, AB8500_BANK12_ACCESS, + 0x01, 0x01); + if (err < 0) + dev_err(ab->dev, "Failed to enable bank12 access err=%d\n", + err); + + err = abx500_mask_and_set_register_interruptible(ab->dev, + AB8500_DEBUG, AB8500_USB_PHY_TUNE1, + 0xC8, 0xC8); + if (err < 0) + dev_err(ab->dev, "Failed to set PHY_TUNE1 register err=%d\n", + err); + + err = abx500_mask_and_set_register_interruptible(ab->dev, + AB8500_DEBUG, AB8500_USB_PHY_TUNE2, + 0x60, 0x60); + if (err < 0) + dev_err(ab->dev, "Failed to set PHY_TUNE2 register err=%d\n", + err); + + err = abx500_mask_and_set_register_interruptible(ab->dev, + AB8500_DEBUG, AB8500_USB_PHY_TUNE3, + 0xFC, 0x80); + + if (err < 0) + dev_err(ab->dev, "Failed to set PHY_TUNE3 regester err=%d\n", + err); + + /* Switch to normal mode/disable Bank 0x12 access */ + err = abx500_mask_and_set_register_interruptible(ab->dev, + AB8500_DEVELOPMENT, AB8500_BANK12_ACCESS, + 0x00, 0x00); + if (err < 0) + dev_err(ab->dev, "Failed to switch bank12 access err=%d\n", + err); + } + + /* Needed to enable ID detection. */ + ab8500_usb_wd_workaround(ab); + + abx500_usb_link_status_update(ab); + + dev_info(&pdev->dev, "revision 0x%2x driver initialized\n", rev); + + return 0; +} + +static int ab8500_usb_remove(struct platform_device *pdev) +{ + struct ab8500_usb *ab = platform_get_drvdata(pdev); + + cancel_work_sync(&ab->phy_dis_work); + + usb_remove_phy(&ab->phy); + + if (ab->mode == USB_HOST) + ab8500_usb_host_phy_dis(ab); + else if (ab->mode == USB_PERIPHERAL) + ab8500_usb_peri_phy_dis(ab); + + platform_set_drvdata(pdev, NULL); + + return 0; +} + +static struct platform_driver ab8500_usb_driver = { + .probe = ab8500_usb_probe, + .remove = ab8500_usb_remove, + .driver = { + .name = "ab8500-usb", + .owner = THIS_MODULE, + }, +}; + +static int __init ab8500_usb_init(void) +{ + return platform_driver_register(&ab8500_usb_driver); +} +subsys_initcall(ab8500_usb_init); + +static void __exit ab8500_usb_exit(void) +{ + platform_driver_unregister(&ab8500_usb_driver); +} +module_exit(ab8500_usb_exit); + +MODULE_ALIAS("platform:ab8500_usb"); +MODULE_AUTHOR("ST-Ericsson AB"); +MODULE_DESCRIPTION("AB8500 usb transceiver driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/otg/fsl_otg.c b/drivers/usb/phy/phy-fsl-usb.c index d16adb41eb21..97b9308507c3 100644 --- a/drivers/usb/otg/fsl_otg.c +++ b/drivers/usb/phy/phy-fsl-usb.c @@ -43,7 +43,7 @@ #include <asm/unaligned.h> -#include "fsl_otg.h" +#include "phy-fsl-usb.h" #define DRIVER_VERSION "Rev. 1.55" #define DRIVER_AUTHOR "Jerry Huang/Li Yang" @@ -361,28 +361,18 @@ int fsl_otg_init_timers(struct otg_fsm *fsm) void fsl_otg_uninit_timers(void) { /* FSM used timers */ - if (a_wait_vrise_tmr != NULL) - kfree(a_wait_vrise_tmr); - if (a_wait_bcon_tmr != NULL) - kfree(a_wait_bcon_tmr); - if (a_aidl_bdis_tmr != NULL) - kfree(a_aidl_bdis_tmr); - if (b_ase0_brst_tmr != NULL) - kfree(b_ase0_brst_tmr); - if (b_se0_srp_tmr != NULL) - kfree(b_se0_srp_tmr); - if (b_srp_fail_tmr != NULL) - kfree(b_srp_fail_tmr); - if (a_wait_enum_tmr != NULL) - kfree(a_wait_enum_tmr); + kfree(a_wait_vrise_tmr); + kfree(a_wait_bcon_tmr); + kfree(a_aidl_bdis_tmr); + kfree(b_ase0_brst_tmr); + kfree(b_se0_srp_tmr); + kfree(b_srp_fail_tmr); + kfree(a_wait_enum_tmr); /* device driver used timers */ - if (b_srp_wait_tmr != NULL) - kfree(b_srp_wait_tmr); - if (b_data_pulse_tmr != NULL) - kfree(b_data_pulse_tmr); - if (b_vbus_pulse_tmr != NULL) - kfree(b_vbus_pulse_tmr); + kfree(b_srp_wait_tmr); + kfree(b_data_pulse_tmr); + kfree(b_vbus_pulse_tmr); } /* Add timer to timer list */ @@ -1002,7 +992,7 @@ static int show_fsl_usb2_otg_state(struct device *dev, /* State */ t = scnprintf(next, size, "OTG state: %s\n\n", - otg_state_string(fsl_otg_dev->phy.state)); + usb_otg_state_string(fsl_otg_dev->phy.state)); size -= t; next += t; diff --git a/drivers/usb/otg/fsl_otg.h b/drivers/usb/phy/phy-fsl-usb.h index ca266280895d..ca266280895d 100644 --- a/drivers/usb/otg/fsl_otg.h +++ b/drivers/usb/phy/phy-fsl-usb.h diff --git a/drivers/usb/otg/otg_fsm.c b/drivers/usb/phy/phy-fsm-usb.c index ade131a8ae5e..c520b3548e7c 100644 --- a/drivers/usb/otg/otg_fsm.c +++ b/drivers/usb/phy/phy-fsm-usb.c @@ -29,7 +29,7 @@ #include <linux/usb/gadget.h> #include <linux/usb/otg.h> -#include "otg_fsm.h" +#include "phy-otg-fsm.h" /* Change USB protocol when there is a protocol change */ static int otg_set_protocol(struct otg_fsm *fsm, int protocol) @@ -119,7 +119,7 @@ int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state) state_changed = 1; if (fsm->otg->phy->state == new_state) return 0; - VDBG("Set state: %s\n", otg_state_string(new_state)); + VDBG("Set state: %s\n", usb_otg_state_string(new_state)); otg_leave_state(fsm, fsm->otg->phy->state); switch (new_state) { case OTG_STATE_B_IDLE: diff --git a/drivers/usb/otg/otg_fsm.h b/drivers/usb/phy/phy-fsm-usb.h index c30a2e1d9e46..c30a2e1d9e46 100644 --- a/drivers/usb/otg/otg_fsm.h +++ b/drivers/usb/phy/phy-fsm-usb.h diff --git a/drivers/usb/otg/gpio_vbus.c b/drivers/usb/phy/phy-gpio-vbus-usb.c index a7d4ac591982..4c76074e518d 100644 --- a/drivers/usb/otg/gpio_vbus.c +++ b/drivers/usb/phy/phy-gpio-vbus-usb.c @@ -61,6 +61,7 @@ static void set_vbus_draw(struct gpio_vbus_data *gpio_vbus, unsigned mA) { struct regulator *vbus_draw = gpio_vbus->vbus_draw; int enabled; + int ret; if (!vbus_draw) return; @@ -69,12 +70,16 @@ static void set_vbus_draw(struct gpio_vbus_data *gpio_vbus, unsigned mA) if (mA) { regulator_set_current_limit(vbus_draw, 0, 1000 * mA); if (!enabled) { - regulator_enable(vbus_draw); + ret = regulator_enable(vbus_draw); + if (ret < 0) + return; gpio_vbus->vbus_draw_enabled = 1; } } else { if (enabled) { - regulator_disable(vbus_draw); + ret = regulator_disable(vbus_draw); + if (ret < 0) + return; gpio_vbus->vbus_draw_enabled = 0; } } diff --git a/drivers/usb/otg/isp1301_omap.c b/drivers/usb/phy/phy-isp1301-omap.c index 8b9de9581319..ae481afcb3ec 100644 --- a/drivers/usb/otg/isp1301_omap.c +++ b/drivers/usb/phy/phy-isp1301-omap.c @@ -236,7 +236,7 @@ isp1301_clear_bits(struct isp1301 *isp, u8 reg, u8 bits) static inline const char *state_name(struct isp1301 *isp) { - return otg_state_string(isp->phy.state); + return usb_otg_state_string(isp->phy.state); } /*-------------------------------------------------------------------------*/ @@ -481,7 +481,7 @@ static void check_state(struct isp1301 *isp, const char *tag) if (isp->phy.state == state && !extra) return; pr_debug("otg: %s FSM %s/%02x, %s, %06x\n", tag, - otg_state_string(state), fsm, state_name(isp), + usb_otg_state_string(state), fsm, state_name(isp), omap_readl(OTG_CTRL)); } @@ -1077,7 +1077,7 @@ static void isp_update_otg(struct isp1301 *isp, u8 stat) if (state != isp->phy.state) pr_debug(" isp, %s -> %s\n", - otg_state_string(state), state_name(isp)); + usb_otg_state_string(state), state_name(isp)); #ifdef CONFIG_USB_OTG /* update the OTG controller state to match the isp1301; may diff --git a/drivers/usb/phy/phy-isp1301.c b/drivers/usb/phy/phy-isp1301.c new file mode 100644 index 000000000000..225ae6c97eeb --- /dev/null +++ b/drivers/usb/phy/phy-isp1301.c @@ -0,0 +1,162 @@ +/* + * NXP ISP1301 USB transceiver driver + * + * Copyright (C) 2012 Roland Stigge + * + * Author: Roland Stigge <stigge@antcom.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/i2c.h> +#include <linux/usb/phy.h> +#include <linux/usb/isp1301.h> + +#define DRV_NAME "isp1301" + +struct isp1301 { + struct usb_phy phy; + struct mutex mutex; + + struct i2c_client *client; +}; + +#define phy_to_isp(p) (container_of((p), struct isp1301, phy)) + +static const struct i2c_device_id isp1301_id[] = { + { "isp1301", 0 }, + { } +}; + +static struct i2c_client *isp1301_i2c_client; + +static int __isp1301_write(struct isp1301 *isp, u8 reg, u8 value, u8 clear) +{ + return i2c_smbus_write_byte_data(isp->client, reg | clear, value); +} + +static int isp1301_write(struct isp1301 *isp, u8 reg, u8 value) +{ + return __isp1301_write(isp, reg, value, 0); +} + +static int isp1301_clear(struct isp1301 *isp, u8 reg, u8 value) +{ + return __isp1301_write(isp, reg, value, ISP1301_I2C_REG_CLEAR_ADDR); +} + +static int isp1301_phy_init(struct usb_phy *phy) +{ + struct isp1301 *isp = phy_to_isp(phy); + + /* Disable transparent UART mode first */ + isp1301_clear(isp, ISP1301_I2C_MODE_CONTROL_1, MC1_UART_EN); + isp1301_clear(isp, ISP1301_I2C_MODE_CONTROL_1, ~MC1_SPEED_REG); + isp1301_write(isp, ISP1301_I2C_MODE_CONTROL_1, MC1_SPEED_REG); + isp1301_clear(isp, ISP1301_I2C_MODE_CONTROL_2, ~0); + isp1301_write(isp, ISP1301_I2C_MODE_CONTROL_2, (MC2_BI_DI | MC2_PSW_EN + | MC2_SPD_SUSP_CTRL)); + + isp1301_clear(isp, ISP1301_I2C_OTG_CONTROL_1, ~0); + isp1301_write(isp, ISP1301_I2C_MODE_CONTROL_1, MC1_DAT_SE0); + isp1301_write(isp, ISP1301_I2C_OTG_CONTROL_1, (OTG1_DM_PULLDOWN + | OTG1_DP_PULLDOWN)); + isp1301_clear(isp, ISP1301_I2C_OTG_CONTROL_1, (OTG1_DM_PULLUP + | OTG1_DP_PULLUP)); + + /* mask all interrupts */ + isp1301_clear(isp, ISP1301_I2C_INTERRUPT_LATCH, ~0); + isp1301_clear(isp, ISP1301_I2C_INTERRUPT_FALLING, ~0); + isp1301_clear(isp, ISP1301_I2C_INTERRUPT_RISING, ~0); + + return 0; +} + +static int isp1301_phy_set_vbus(struct usb_phy *phy, int on) +{ + struct isp1301 *isp = phy_to_isp(phy); + + if (on) + isp1301_write(isp, ISP1301_I2C_OTG_CONTROL_1, OTG1_VBUS_DRV); + else + isp1301_clear(isp, ISP1301_I2C_OTG_CONTROL_1, OTG1_VBUS_DRV); + + return 0; +} + +static int isp1301_probe(struct i2c_client *client, + const struct i2c_device_id *i2c_id) +{ + struct isp1301 *isp; + struct usb_phy *phy; + + isp = devm_kzalloc(&client->dev, sizeof(*isp), GFP_KERNEL); + if (!isp) + return -ENOMEM; + + isp->client = client; + mutex_init(&isp->mutex); + + phy = &isp->phy; + phy->label = DRV_NAME; + phy->init = isp1301_phy_init; + phy->set_vbus = isp1301_phy_set_vbus; + phy->type = USB_PHY_TYPE_USB2; + + i2c_set_clientdata(client, isp); + usb_add_phy_dev(phy); + + isp1301_i2c_client = client; + + return 0; +} + +static int isp1301_remove(struct i2c_client *client) +{ + struct isp1301 *isp = i2c_get_clientdata(client); + + usb_remove_phy(&isp->phy); + isp1301_i2c_client = NULL; + + return 0; +} + +static struct i2c_driver isp1301_driver = { + .driver = { + .name = DRV_NAME, + }, + .probe = isp1301_probe, + .remove = isp1301_remove, + .id_table = isp1301_id, +}; + +module_i2c_driver(isp1301_driver); + +static int match(struct device *dev, void *data) +{ + struct device_node *node = (struct device_node *)data; + return (dev->of_node == node) && + (dev->driver == &isp1301_driver.driver); +} + +struct i2c_client *isp1301_get_client(struct device_node *node) +{ + if (node) { /* reference of ISP1301 I2C node via DT */ + struct device *dev = bus_find_device(&i2c_bus_type, NULL, + node, match); + if (!dev) + return NULL; + return to_i2c_client(dev); + } else { /* non-DT: only one ISP1301 chip supported */ + return isp1301_i2c_client; + } +} +EXPORT_SYMBOL_GPL(isp1301_get_client); + +MODULE_AUTHOR("Roland Stigge <stigge@antcom.de>"); +MODULE_DESCRIPTION("NXP ISP1301 USB transceiver driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/usb/otg/msm_otg.c b/drivers/usb/phy/phy-msm-usb.c index 749fbf41fb6f..749fbf41fb6f 100644 --- a/drivers/usb/otg/msm_otg.c +++ b/drivers/usb/phy/phy-msm-usb.c diff --git a/drivers/usb/phy/mv_u3d_phy.c b/drivers/usb/phy/phy-mv-u3d-usb.c index bafd67f1f134..f7838a43347c 100644 --- a/drivers/usb/phy/mv_u3d_phy.c +++ b/drivers/usb/phy/phy-mv-u3d-usb.c @@ -15,7 +15,7 @@ #include <linux/usb/otg.h> #include <linux/platform_data/mv_usb.h> -#include "mv_u3d_phy.h" +#include "phy-mv-u3d-usb.h" /* * struct mv_u3d_phy - transceiver driver state diff --git a/drivers/usb/phy/mv_u3d_phy.h b/drivers/usb/phy/phy-mv-u3d-usb.h index 2a658cb9a527..2a658cb9a527 100644 --- a/drivers/usb/phy/mv_u3d_phy.h +++ b/drivers/usb/phy/phy-mv-u3d-usb.h diff --git a/drivers/usb/otg/mv_otg.c b/drivers/usb/phy/phy-mv-usb.c index b6a9be31133b..c987bbe27851 100644 --- a/drivers/usb/otg/mv_otg.c +++ b/drivers/usb/phy/phy-mv-usb.c @@ -27,7 +27,7 @@ #include <linux/usb/hcd.h> #include <linux/platform_data/mv_usb.h> -#include "mv_otg.h" +#include "phy-mv-usb.h" #define DRIVER_DESC "Marvell USB OTG transceiver driver" #define DRIVER_VERSION "Jan 20, 2010" @@ -237,18 +237,12 @@ static void mv_otg_start_periphrals(struct mv_otg *mvotg, int on) static void otg_clock_enable(struct mv_otg *mvotg) { - unsigned int i; - - for (i = 0; i < mvotg->clknum; i++) - clk_prepare_enable(mvotg->clk[i]); + clk_prepare_enable(mvotg->clk); } static void otg_clock_disable(struct mv_otg *mvotg) { - unsigned int i; - - for (i = 0; i < mvotg->clknum; i++) - clk_disable_unprepare(mvotg->clk[i]); + clk_disable_unprepare(mvotg->clk); } static int mv_otg_enable_internal(struct mv_otg *mvotg) @@ -684,16 +678,14 @@ static int mv_otg_probe(struct platform_device *pdev) struct mv_otg *mvotg; struct usb_otg *otg; struct resource *r; - int retval = 0, clk_i, i; - size_t size; + int retval = 0, i; if (pdata == NULL) { dev_err(&pdev->dev, "failed to get platform data\n"); return -ENODEV; } - size = sizeof(*mvotg) + sizeof(struct clk *) * pdata->clknum; - mvotg = devm_kzalloc(&pdev->dev, size, GFP_KERNEL); + mvotg = devm_kzalloc(&pdev->dev, sizeof(*mvotg), GFP_KERNEL); if (!mvotg) { dev_err(&pdev->dev, "failed to allocate memory!\n"); return -ENOMEM; @@ -708,15 +700,9 @@ static int mv_otg_probe(struct platform_device *pdev) mvotg->pdev = pdev; mvotg->pdata = pdata; - mvotg->clknum = pdata->clknum; - for (clk_i = 0; clk_i < mvotg->clknum; clk_i++) { - mvotg->clk[clk_i] = devm_clk_get(&pdev->dev, - pdata->clkname[clk_i]); - if (IS_ERR(mvotg->clk[clk_i])) { - retval = PTR_ERR(mvotg->clk[clk_i]); - return retval; - } - } + mvotg->clk = devm_clk_get(&pdev->dev, NULL); + if (IS_ERR(mvotg->clk)) + return PTR_ERR(mvotg->clk); mvotg->qwork = create_singlethread_workqueue("mv_otg_queue"); if (!mvotg->qwork) { diff --git a/drivers/usb/otg/mv_otg.h b/drivers/usb/phy/phy-mv-usb.h index 8a9e351b36ba..551da6eb0ba8 100644 --- a/drivers/usb/otg/mv_otg.h +++ b/drivers/usb/phy/phy-mv-usb.h @@ -158,8 +158,7 @@ struct mv_otg { unsigned int active; unsigned int clock_gating; - unsigned int clknum; - struct clk *clk[0]; + struct clk *clk; }; #endif diff --git a/drivers/usb/otg/mxs-phy.c b/drivers/usb/phy/phy-mxs-usb.c index b0d9f119c749..9d4381e64d51 100644 --- a/drivers/usb/otg/mxs-phy.c +++ b/drivers/usb/phy/phy-mxs-usb.c @@ -48,12 +48,12 @@ static void mxs_phy_hw_init(struct mxs_phy *mxs_phy) stmp_reset_block(base + HW_USBPHY_CTRL); /* Power up the PHY */ - writel_relaxed(0, base + HW_USBPHY_PWD); + writel(0, base + HW_USBPHY_PWD); /* enable FS/LS device */ - writel_relaxed(BM_USBPHY_CTRL_ENUTMILEVEL2 | - BM_USBPHY_CTRL_ENUTMILEVEL3, - base + HW_USBPHY_CTRL_SET); + writel(BM_USBPHY_CTRL_ENUTMILEVEL2 | + BM_USBPHY_CTRL_ENUTMILEVEL3, + base + HW_USBPHY_CTRL_SET); } static int mxs_phy_init(struct usb_phy *phy) @@ -70,8 +70,8 @@ static void mxs_phy_shutdown(struct usb_phy *phy) { struct mxs_phy *mxs_phy = to_mxs_phy(phy); - writel_relaxed(BM_USBPHY_CTRL_CLKGATE, - phy->io_priv + HW_USBPHY_CTRL_SET); + writel(BM_USBPHY_CTRL_CLKGATE, + phy->io_priv + HW_USBPHY_CTRL_SET); clk_disable_unprepare(mxs_phy->clk); } @@ -81,15 +81,15 @@ static int mxs_phy_suspend(struct usb_phy *x, int suspend) struct mxs_phy *mxs_phy = to_mxs_phy(x); if (suspend) { - writel_relaxed(0xffffffff, x->io_priv + HW_USBPHY_PWD); - writel_relaxed(BM_USBPHY_CTRL_CLKGATE, - x->io_priv + HW_USBPHY_CTRL_SET); + writel(0xffffffff, x->io_priv + HW_USBPHY_PWD); + writel(BM_USBPHY_CTRL_CLKGATE, + x->io_priv + HW_USBPHY_CTRL_SET); clk_disable_unprepare(mxs_phy->clk); } else { clk_prepare_enable(mxs_phy->clk); - writel_relaxed(BM_USBPHY_CTRL_CLKGATE, - x->io_priv + HW_USBPHY_CTRL_CLR); - writel_relaxed(0, x->io_priv + HW_USBPHY_PWD); + writel(BM_USBPHY_CTRL_CLKGATE, + x->io_priv + HW_USBPHY_CTRL_CLR); + writel(0, x->io_priv + HW_USBPHY_PWD); } return 0; @@ -102,8 +102,8 @@ static int mxs_phy_on_connect(struct usb_phy *phy, (speed == USB_SPEED_HIGH) ? "high" : "non-high"); if (speed == USB_SPEED_HIGH) - writel_relaxed(BM_USBPHY_CTRL_ENHOSTDISCONDETECT, - phy->io_priv + HW_USBPHY_CTRL_SET); + writel(BM_USBPHY_CTRL_ENHOSTDISCONDETECT, + phy->io_priv + HW_USBPHY_CTRL_SET); return 0; } @@ -115,8 +115,8 @@ static int mxs_phy_on_disconnect(struct usb_phy *phy, (speed == USB_SPEED_HIGH) ? "high" : "non-high"); if (speed == USB_SPEED_HIGH) - writel_relaxed(BM_USBPHY_CTRL_ENHOSTDISCONDETECT, - phy->io_priv + HW_USBPHY_CTRL_CLR); + writel(BM_USBPHY_CTRL_ENHOSTDISCONDETECT, + phy->io_priv + HW_USBPHY_CTRL_CLR); return 0; } @@ -127,6 +127,7 @@ static int mxs_phy_probe(struct platform_device *pdev) void __iomem *base; struct clk *clk; struct mxs_phy *mxs_phy; + int ret; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { @@ -166,11 +167,19 @@ static int mxs_phy_probe(struct platform_device *pdev) platform_set_drvdata(pdev, &mxs_phy->phy); + ret = usb_add_phy_dev(&mxs_phy->phy); + if (ret) + return ret; + return 0; } static int mxs_phy_remove(struct platform_device *pdev) { + struct mxs_phy *mxs_phy = platform_get_drvdata(pdev); + + usb_remove_phy(&mxs_phy->phy); + platform_set_drvdata(pdev, NULL); return 0; diff --git a/drivers/usb/otg/nop-usb-xceiv.c b/drivers/usb/phy/phy-nop.c index a3ce24b94a73..2b10cc969bbb 100644 --- a/drivers/usb/otg/nop-usb-xceiv.c +++ b/drivers/usb/phy/phy-nop.c @@ -32,10 +32,16 @@ #include <linux/usb/otg.h> #include <linux/usb/nop-usb-xceiv.h> #include <linux/slab.h> +#include <linux/clk.h> +#include <linux/regulator/consumer.h> +#include <linux/of.h> struct nop_usb_xceiv { - struct usb_phy phy; - struct device *dev; + struct usb_phy phy; + struct device *dev; + struct clk *clk; + struct regulator *vcc; + struct regulator *reset; }; static struct platform_device *pd; @@ -64,6 +70,46 @@ static int nop_set_suspend(struct usb_phy *x, int suspend) return 0; } +static int nop_init(struct usb_phy *phy) +{ + struct nop_usb_xceiv *nop = dev_get_drvdata(phy->dev); + + if (!IS_ERR(nop->vcc)) { + if (regulator_enable(nop->vcc)) + dev_err(phy->dev, "Failed to enable power\n"); + } + + if (!IS_ERR(nop->clk)) + clk_enable(nop->clk); + + if (!IS_ERR(nop->reset)) { + /* De-assert RESET */ + if (regulator_enable(nop->reset)) + dev_err(phy->dev, "Failed to de-assert reset\n"); + } + + return 0; +} + +static void nop_shutdown(struct usb_phy *phy) +{ + struct nop_usb_xceiv *nop = dev_get_drvdata(phy->dev); + + if (!IS_ERR(nop->reset)) { + /* Assert RESET */ + if (regulator_disable(nop->reset)) + dev_err(phy->dev, "Failed to assert reset\n"); + } + + if (!IS_ERR(nop->clk)) + clk_disable(nop->clk); + + if (!IS_ERR(nop->vcc)) { + if (regulator_disable(nop->vcc)) + dev_err(phy->dev, "Failed to disable power\n"); + } +} + static int nop_set_peripheral(struct usb_otg *otg, struct usb_gadget *gadget) { if (!otg) @@ -95,39 +141,96 @@ static int nop_set_host(struct usb_otg *otg, struct usb_bus *host) static int nop_usb_xceiv_probe(struct platform_device *pdev) { + struct device *dev = &pdev->dev; struct nop_usb_xceiv_platform_data *pdata = pdev->dev.platform_data; struct nop_usb_xceiv *nop; enum usb_phy_type type = USB_PHY_TYPE_USB2; int err; + u32 clk_rate = 0; + bool needs_vcc = false; + bool needs_reset = false; - nop = kzalloc(sizeof *nop, GFP_KERNEL); + nop = devm_kzalloc(&pdev->dev, sizeof(*nop), GFP_KERNEL); if (!nop) return -ENOMEM; - nop->phy.otg = kzalloc(sizeof *nop->phy.otg, GFP_KERNEL); - if (!nop->phy.otg) { - kfree(nop); + nop->phy.otg = devm_kzalloc(&pdev->dev, sizeof(*nop->phy.otg), + GFP_KERNEL); + if (!nop->phy.otg) return -ENOMEM; - } - if (pdata) + if (dev->of_node) { + struct device_node *node = dev->of_node; + + if (of_property_read_u32(node, "clock-frequency", &clk_rate)) + clk_rate = 0; + + needs_vcc = of_property_read_bool(node, "vcc-supply"); + needs_reset = of_property_read_bool(node, "reset-supply"); + + } else if (pdata) { type = pdata->type; + clk_rate = pdata->clk_rate; + needs_vcc = pdata->needs_vcc; + needs_reset = pdata->needs_reset; + } + + nop->clk = devm_clk_get(&pdev->dev, "main_clk"); + if (IS_ERR(nop->clk)) { + dev_dbg(&pdev->dev, "Can't get phy clock: %ld\n", + PTR_ERR(nop->clk)); + } + + if (!IS_ERR(nop->clk) && clk_rate) { + err = clk_set_rate(nop->clk, clk_rate); + if (err) { + dev_err(&pdev->dev, "Error setting clock rate\n"); + return err; + } + } + + if (!IS_ERR(nop->clk)) { + err = clk_prepare(nop->clk); + if (err) { + dev_err(&pdev->dev, "Error preparing clock\n"); + return err; + } + } + + nop->vcc = devm_regulator_get(&pdev->dev, "vcc"); + if (IS_ERR(nop->vcc)) { + dev_dbg(&pdev->dev, "Error getting vcc regulator: %ld\n", + PTR_ERR(nop->vcc)); + if (needs_vcc) + return -EPROBE_DEFER; + } + + nop->reset = devm_regulator_get(&pdev->dev, "reset"); + if (IS_ERR(nop->reset)) { + dev_dbg(&pdev->dev, "Error getting reset regulator: %ld\n", + PTR_ERR(nop->reset)); + if (needs_reset) + return -EPROBE_DEFER; + } nop->dev = &pdev->dev; nop->phy.dev = nop->dev; nop->phy.label = "nop-xceiv"; nop->phy.set_suspend = nop_set_suspend; + nop->phy.init = nop_init; + nop->phy.shutdown = nop_shutdown; nop->phy.state = OTG_STATE_UNDEFINED; + nop->phy.type = type; nop->phy.otg->phy = &nop->phy; nop->phy.otg->set_host = nop_set_host; nop->phy.otg->set_peripheral = nop_set_peripheral; - err = usb_add_phy(&nop->phy, type); + err = usb_add_phy_dev(&nop->phy); if (err) { dev_err(&pdev->dev, "can't register transceiver, err: %d\n", err); - goto exit; + goto err_add; } platform_set_drvdata(pdev, nop); @@ -135,9 +238,10 @@ static int nop_usb_xceiv_probe(struct platform_device *pdev) ATOMIC_INIT_NOTIFIER_HEAD(&nop->phy.notifier); return 0; -exit: - kfree(nop->phy.otg); - kfree(nop); + +err_add: + if (!IS_ERR(nop->clk)) + clk_unprepare(nop->clk); return err; } @@ -145,21 +249,30 @@ static int nop_usb_xceiv_remove(struct platform_device *pdev) { struct nop_usb_xceiv *nop = platform_get_drvdata(pdev); + if (!IS_ERR(nop->clk)) + clk_unprepare(nop->clk); + usb_remove_phy(&nop->phy); platform_set_drvdata(pdev, NULL); - kfree(nop->phy.otg); - kfree(nop); return 0; } +static const struct of_device_id nop_xceiv_dt_ids[] = { + { .compatible = "usb-nop-xceiv" }, + { } +}; + +MODULE_DEVICE_TABLE(of, nop_xceiv_dt_ids); + static struct platform_driver nop_usb_xceiv_driver = { .probe = nop_usb_xceiv_probe, .remove = nop_usb_xceiv_remove, .driver = { .name = "nop_usb_xceiv", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(nop_xceiv_dt_ids), }, }; diff --git a/drivers/usb/phy/omap-control-usb.c b/drivers/usb/phy/phy-omap-control.c index 1419ceda9759..1419ceda9759 100644 --- a/drivers/usb/phy/omap-control-usb.c +++ b/drivers/usb/phy/phy-omap-control.c diff --git a/drivers/usb/phy/omap-usb2.c b/drivers/usb/phy/phy-omap-usb2.c index 844ab68f08d0..844ab68f08d0 100644 --- a/drivers/usb/phy/omap-usb2.c +++ b/drivers/usb/phy/phy-omap-usb2.c diff --git a/drivers/usb/phy/omap-usb3.c b/drivers/usb/phy/phy-omap-usb3.c index a6e60b1e102e..a6e60b1e102e 100644 --- a/drivers/usb/phy/omap-usb3.c +++ b/drivers/usb/phy/phy-omap-usb3.c diff --git a/drivers/usb/phy/rcar-phy.c b/drivers/usb/phy/phy-rcar-usb.c index a35681b0c501..a35681b0c501 100644 --- a/drivers/usb/phy/rcar-phy.c +++ b/drivers/usb/phy/phy-rcar-usb.c diff --git a/drivers/usb/phy/phy-samsung-usb.c b/drivers/usb/phy/phy-samsung-usb.c new file mode 100644 index 000000000000..7b118ee5f5e4 --- /dev/null +++ b/drivers/usb/phy/phy-samsung-usb.c @@ -0,0 +1,236 @@ +/* linux/drivers/usb/phy/phy-samsung-usb.c + * + * Copyright (c) 2012 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Author: Praveen Paneri <p.paneri@samsung.com> + * + * Samsung USB-PHY helper driver with common function calls; + * interacts with Samsung USB 2.0 PHY controller driver and later + * with Samsung USB 3.0 PHY driver. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/usb/samsung_usb_phy.h> + +#include "phy-samsung-usb.h" + +int samsung_usbphy_parse_dt(struct samsung_usbphy *sphy) +{ + struct device_node *usbphy_sys; + + /* Getting node for system controller interface for usb-phy */ + usbphy_sys = of_get_child_by_name(sphy->dev->of_node, "usbphy-sys"); + if (!usbphy_sys) { + dev_err(sphy->dev, "No sys-controller interface for usb-phy\n"); + return -ENODEV; + } + + sphy->pmuregs = of_iomap(usbphy_sys, 0); + + if (sphy->pmuregs == NULL) { + dev_err(sphy->dev, "Can't get usb-phy pmu control register\n"); + goto err0; + } + + sphy->sysreg = of_iomap(usbphy_sys, 1); + + /* + * Not returning error code here, since this situation is not fatal. + * Few SoCs may not have this switch available + */ + if (sphy->sysreg == NULL) + dev_warn(sphy->dev, "Can't get usb-phy sysreg cfg register\n"); + + of_node_put(usbphy_sys); + + return 0; + +err0: + of_node_put(usbphy_sys); + return -ENXIO; +} +EXPORT_SYMBOL_GPL(samsung_usbphy_parse_dt); + +/* + * Set isolation here for phy. + * Here 'on = true' would mean USB PHY block is isolated, hence + * de-activated and vice-versa. + */ +void samsung_usbphy_set_isolation(struct samsung_usbphy *sphy, bool on) +{ + void __iomem *reg = NULL; + u32 reg_val; + u32 en_mask = 0; + + if (!sphy->pmuregs) { + dev_warn(sphy->dev, "Can't set pmu isolation\n"); + return; + } + + switch (sphy->drv_data->cpu_type) { + case TYPE_S3C64XX: + /* + * Do nothing: We will add here once S3C64xx goes for DT support + */ + break; + case TYPE_EXYNOS4210: + /* + * Fall through since exynos4210 and exynos5250 have similar + * register architecture: two separate registers for host and + * device phy control with enable bit at position 0. + */ + case TYPE_EXYNOS5250: + if (sphy->phy_type == USB_PHY_TYPE_DEVICE) { + reg = sphy->pmuregs + + sphy->drv_data->devphy_reg_offset; + en_mask = sphy->drv_data->devphy_en_mask; + } else if (sphy->phy_type == USB_PHY_TYPE_HOST) { + reg = sphy->pmuregs + + sphy->drv_data->hostphy_reg_offset; + en_mask = sphy->drv_data->hostphy_en_mask; + } + break; + default: + dev_err(sphy->dev, "Invalid SoC type\n"); + return; + } + + reg_val = readl(reg); + + if (on) + reg_val &= ~en_mask; + else + reg_val |= en_mask; + + writel(reg_val, reg); +} +EXPORT_SYMBOL_GPL(samsung_usbphy_set_isolation); + +/* + * Configure the mode of working of usb-phy here: HOST/DEVICE. + */ +void samsung_usbphy_cfg_sel(struct samsung_usbphy *sphy) +{ + u32 reg; + + if (!sphy->sysreg) { + dev_warn(sphy->dev, "Can't configure specified phy mode\n"); + return; + } + + reg = readl(sphy->sysreg); + + if (sphy->phy_type == USB_PHY_TYPE_DEVICE) + reg &= ~EXYNOS_USB20PHY_CFG_HOST_LINK; + else if (sphy->phy_type == USB_PHY_TYPE_HOST) + reg |= EXYNOS_USB20PHY_CFG_HOST_LINK; + + writel(reg, sphy->sysreg); +} +EXPORT_SYMBOL_GPL(samsung_usbphy_cfg_sel); + +/* + * PHYs are different for USB Device and USB Host. + * This make sure that correct PHY type is selected before + * any operation on PHY. + */ +int samsung_usbphy_set_type(struct usb_phy *phy, + enum samsung_usb_phy_type phy_type) +{ + struct samsung_usbphy *sphy = phy_to_sphy(phy); + + sphy->phy_type = phy_type; + + return 0; +} +EXPORT_SYMBOL_GPL(samsung_usbphy_set_type); + +/* + * Returns reference clock frequency selection value + */ +int samsung_usbphy_get_refclk_freq(struct samsung_usbphy *sphy) +{ + struct clk *ref_clk; + int refclk_freq = 0; + + /* + * In exynos5250 USB host and device PHY use + * external crystal clock XXTI + */ + if (sphy->drv_data->cpu_type == TYPE_EXYNOS5250) + ref_clk = devm_clk_get(sphy->dev, "ext_xtal"); + else + ref_clk = devm_clk_get(sphy->dev, "xusbxti"); + if (IS_ERR(ref_clk)) { + dev_err(sphy->dev, "Failed to get reference clock\n"); + return PTR_ERR(ref_clk); + } + + if (sphy->drv_data->cpu_type == TYPE_EXYNOS5250) { + /* set clock frequency for PLL */ + switch (clk_get_rate(ref_clk)) { + case 9600 * KHZ: + refclk_freq = FSEL_CLKSEL_9600K; + break; + case 10 * MHZ: + refclk_freq = FSEL_CLKSEL_10M; + break; + case 12 * MHZ: + refclk_freq = FSEL_CLKSEL_12M; + break; + case 19200 * KHZ: + refclk_freq = FSEL_CLKSEL_19200K; + break; + case 20 * MHZ: + refclk_freq = FSEL_CLKSEL_20M; + break; + case 50 * MHZ: + refclk_freq = FSEL_CLKSEL_50M; + break; + case 24 * MHZ: + default: + /* default reference clock */ + refclk_freq = FSEL_CLKSEL_24M; + break; + } + } else { + switch (clk_get_rate(ref_clk)) { + case 12 * MHZ: + refclk_freq = PHYCLK_CLKSEL_12M; + break; + case 24 * MHZ: + refclk_freq = PHYCLK_CLKSEL_24M; + break; + case 48 * MHZ: + refclk_freq = PHYCLK_CLKSEL_48M; + break; + default: + if (sphy->drv_data->cpu_type == TYPE_S3C64XX) + refclk_freq = PHYCLK_CLKSEL_48M; + else + refclk_freq = PHYCLK_CLKSEL_24M; + break; + } + } + clk_put(ref_clk); + + return refclk_freq; +} +EXPORT_SYMBOL_GPL(samsung_usbphy_get_refclk_freq); diff --git a/drivers/usb/phy/phy-samsung-usb.h b/drivers/usb/phy/phy-samsung-usb.h new file mode 100644 index 000000000000..70a9cae5e37f --- /dev/null +++ b/drivers/usb/phy/phy-samsung-usb.h @@ -0,0 +1,327 @@ +/* linux/drivers/usb/phy/phy-samsung-usb.h + * + * Copyright (c) 2012 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Samsung USB-PHY transceiver; talks to S3C HS OTG controller, EHCI-S5P and + * OHCI-EXYNOS controllers. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/usb/phy.h> + +/* Register definitions */ + +#define SAMSUNG_PHYPWR (0x00) + +#define PHYPWR_NORMAL_MASK (0x19 << 0) +#define PHYPWR_OTG_DISABLE (0x1 << 4) +#define PHYPWR_ANALOG_POWERDOWN (0x1 << 3) +#define PHYPWR_FORCE_SUSPEND (0x1 << 1) +/* For Exynos4 */ +#define PHYPWR_NORMAL_MASK_PHY0 (0x39 << 0) +#define PHYPWR_SLEEP_PHY0 (0x1 << 5) + +#define SAMSUNG_PHYCLK (0x04) + +#define PHYCLK_MODE_USB11 (0x1 << 6) +#define PHYCLK_EXT_OSC (0x1 << 5) +#define PHYCLK_COMMON_ON_N (0x1 << 4) +#define PHYCLK_ID_PULL (0x1 << 2) +#define PHYCLK_CLKSEL_MASK (0x3 << 0) +#define PHYCLK_CLKSEL_48M (0x0 << 0) +#define PHYCLK_CLKSEL_12M (0x2 << 0) +#define PHYCLK_CLKSEL_24M (0x3 << 0) + +#define SAMSUNG_RSTCON (0x08) + +#define RSTCON_PHYLINK_SWRST (0x1 << 2) +#define RSTCON_HLINK_SWRST (0x1 << 1) +#define RSTCON_SWRST (0x1 << 0) + +/* EXYNOS5 */ +#define EXYNOS5_PHY_HOST_CTRL0 (0x00) + +#define HOST_CTRL0_PHYSWRSTALL (0x1 << 31) + +#define HOST_CTRL0_REFCLKSEL_MASK (0x3 << 19) +#define HOST_CTRL0_REFCLKSEL_XTAL (0x0 << 19) +#define HOST_CTRL0_REFCLKSEL_EXTL (0x1 << 19) +#define HOST_CTRL0_REFCLKSEL_CLKCORE (0x2 << 19) + +#define HOST_CTRL0_FSEL_MASK (0x7 << 16) +#define HOST_CTRL0_FSEL(_x) ((_x) << 16) + +#define FSEL_CLKSEL_50M (0x7) +#define FSEL_CLKSEL_24M (0x5) +#define FSEL_CLKSEL_20M (0x4) +#define FSEL_CLKSEL_19200K (0x3) +#define FSEL_CLKSEL_12M (0x2) +#define FSEL_CLKSEL_10M (0x1) +#define FSEL_CLKSEL_9600K (0x0) + +#define HOST_CTRL0_TESTBURNIN (0x1 << 11) +#define HOST_CTRL0_RETENABLE (0x1 << 10) +#define HOST_CTRL0_COMMONON_N (0x1 << 9) +#define HOST_CTRL0_SIDDQ (0x1 << 6) +#define HOST_CTRL0_FORCESLEEP (0x1 << 5) +#define HOST_CTRL0_FORCESUSPEND (0x1 << 4) +#define HOST_CTRL0_WORDINTERFACE (0x1 << 3) +#define HOST_CTRL0_UTMISWRST (0x1 << 2) +#define HOST_CTRL0_LINKSWRST (0x1 << 1) +#define HOST_CTRL0_PHYSWRST (0x1 << 0) + +#define EXYNOS5_PHY_HOST_TUNE0 (0x04) + +#define EXYNOS5_PHY_HSIC_CTRL1 (0x10) + +#define EXYNOS5_PHY_HSIC_TUNE1 (0x14) + +#define EXYNOS5_PHY_HSIC_CTRL2 (0x20) + +#define EXYNOS5_PHY_HSIC_TUNE2 (0x24) + +#define HSIC_CTRL_REFCLKSEL_MASK (0x3 << 23) +#define HSIC_CTRL_REFCLKSEL (0x2 << 23) + +#define HSIC_CTRL_REFCLKDIV_MASK (0x7f << 16) +#define HSIC_CTRL_REFCLKDIV(_x) ((_x) << 16) +#define HSIC_CTRL_REFCLKDIV_12 (0x24 << 16) +#define HSIC_CTRL_REFCLKDIV_15 (0x1c << 16) +#define HSIC_CTRL_REFCLKDIV_16 (0x1a << 16) +#define HSIC_CTRL_REFCLKDIV_19_2 (0x15 << 16) +#define HSIC_CTRL_REFCLKDIV_20 (0x14 << 16) + +#define HSIC_CTRL_SIDDQ (0x1 << 6) +#define HSIC_CTRL_FORCESLEEP (0x1 << 5) +#define HSIC_CTRL_FORCESUSPEND (0x1 << 4) +#define HSIC_CTRL_WORDINTERFACE (0x1 << 3) +#define HSIC_CTRL_UTMISWRST (0x1 << 2) +#define HSIC_CTRL_PHYSWRST (0x1 << 0) + +#define EXYNOS5_PHY_HOST_EHCICTRL (0x30) + +#define HOST_EHCICTRL_ENAINCRXALIGN (0x1 << 29) +#define HOST_EHCICTRL_ENAINCR4 (0x1 << 28) +#define HOST_EHCICTRL_ENAINCR8 (0x1 << 27) +#define HOST_EHCICTRL_ENAINCR16 (0x1 << 26) + +#define EXYNOS5_PHY_HOST_OHCICTRL (0x34) + +#define HOST_OHCICTRL_SUSPLGCY (0x1 << 3) +#define HOST_OHCICTRL_APPSTARTCLK (0x1 << 2) +#define HOST_OHCICTRL_CNTSEL (0x1 << 1) +#define HOST_OHCICTRL_CLKCKTRST (0x1 << 0) + +#define EXYNOS5_PHY_OTG_SYS (0x38) + +#define OTG_SYS_PHYLINK_SWRESET (0x1 << 14) +#define OTG_SYS_LINKSWRST_UOTG (0x1 << 13) +#define OTG_SYS_PHY0_SWRST (0x1 << 12) + +#define OTG_SYS_REFCLKSEL_MASK (0x3 << 9) +#define OTG_SYS_REFCLKSEL_XTAL (0x0 << 9) +#define OTG_SYS_REFCLKSEL_EXTL (0x1 << 9) +#define OTG_SYS_REFCLKSEL_CLKCORE (0x2 << 9) + +#define OTG_SYS_IDPULLUP_UOTG (0x1 << 8) +#define OTG_SYS_COMMON_ON (0x1 << 7) + +#define OTG_SYS_FSEL_MASK (0x7 << 4) +#define OTG_SYS_FSEL(_x) ((_x) << 4) + +#define OTG_SYS_FORCESLEEP (0x1 << 3) +#define OTG_SYS_OTGDISABLE (0x1 << 2) +#define OTG_SYS_SIDDQ_UOTG (0x1 << 1) +#define OTG_SYS_FORCESUSPEND (0x1 << 0) + +#define EXYNOS5_PHY_OTG_TUNE (0x40) + +/* EXYNOS5: USB 3.0 DRD */ +#define EXYNOS5_DRD_LINKSYSTEM (0x04) + +#define LINKSYSTEM_FLADJ_MASK (0x3f << 1) +#define LINKSYSTEM_FLADJ(_x) ((_x) << 1) +#define LINKSYSTEM_XHCI_VERSION_CONTROL (0x1 << 27) + +#define EXYNOS5_DRD_PHYUTMI (0x08) + +#define PHYUTMI_OTGDISABLE (0x1 << 6) +#define PHYUTMI_FORCESUSPEND (0x1 << 1) +#define PHYUTMI_FORCESLEEP (0x1 << 0) + +#define EXYNOS5_DRD_PHYPIPE (0x0c) + +#define EXYNOS5_DRD_PHYCLKRST (0x10) + +#define PHYCLKRST_SSC_REFCLKSEL_MASK (0xff << 23) +#define PHYCLKRST_SSC_REFCLKSEL(_x) ((_x) << 23) + +#define PHYCLKRST_SSC_RANGE_MASK (0x03 << 21) +#define PHYCLKRST_SSC_RANGE(_x) ((_x) << 21) + +#define PHYCLKRST_SSC_EN (0x1 << 20) +#define PHYCLKRST_REF_SSP_EN (0x1 << 19) +#define PHYCLKRST_REF_CLKDIV2 (0x1 << 18) + +#define PHYCLKRST_MPLL_MULTIPLIER_MASK (0x7f << 11) +#define PHYCLKRST_MPLL_MULTIPLIER_100MHZ_REF (0x19 << 11) +#define PHYCLKRST_MPLL_MULTIPLIER_50M_REF (0x02 << 11) +#define PHYCLKRST_MPLL_MULTIPLIER_24MHZ_REF (0x68 << 11) +#define PHYCLKRST_MPLL_MULTIPLIER_20MHZ_REF (0x7d << 11) +#define PHYCLKRST_MPLL_MULTIPLIER_19200KHZ_REF (0x02 << 11) + +#define PHYCLKRST_FSEL_MASK (0x3f << 5) +#define PHYCLKRST_FSEL(_x) ((_x) << 5) +#define PHYCLKRST_FSEL_PAD_100MHZ (0x27 << 5) +#define PHYCLKRST_FSEL_PAD_24MHZ (0x2a << 5) +#define PHYCLKRST_FSEL_PAD_20MHZ (0x31 << 5) +#define PHYCLKRST_FSEL_PAD_19_2MHZ (0x38 << 5) + +#define PHYCLKRST_RETENABLEN (0x1 << 4) + +#define PHYCLKRST_REFCLKSEL_MASK (0x03 << 2) +#define PHYCLKRST_REFCLKSEL_PAD_REFCLK (0x2 << 2) +#define PHYCLKRST_REFCLKSEL_EXT_REFCLK (0x3 << 2) + +#define PHYCLKRST_PORTRESET (0x1 << 1) +#define PHYCLKRST_COMMONONN (0x1 << 0) + +#define EXYNOS5_DRD_PHYREG0 (0x14) +#define EXYNOS5_DRD_PHYREG1 (0x18) + +#define EXYNOS5_DRD_PHYPARAM0 (0x1c) + +#define PHYPARAM0_REF_USE_PAD (0x1 << 31) +#define PHYPARAM0_REF_LOSLEVEL_MASK (0x1f << 26) +#define PHYPARAM0_REF_LOSLEVEL (0x9 << 26) + +#define EXYNOS5_DRD_PHYPARAM1 (0x20) + +#define PHYPARAM1_PCS_TXDEEMPH_MASK (0x1f << 0) +#define PHYPARAM1_PCS_TXDEEMPH (0x1c) + +#define EXYNOS5_DRD_PHYTERM (0x24) + +#define EXYNOS5_DRD_PHYTEST (0x28) + +#define PHYTEST_POWERDOWN_SSP (0x1 << 3) +#define PHYTEST_POWERDOWN_HSP (0x1 << 2) + +#define EXYNOS5_DRD_PHYADP (0x2c) + +#define EXYNOS5_DRD_PHYBATCHG (0x30) + +#define PHYBATCHG_UTMI_CLKSEL (0x1 << 2) + +#define EXYNOS5_DRD_PHYRESUME (0x34) +#define EXYNOS5_DRD_LINKPORT (0x44) + +#ifndef MHZ +#define MHZ (1000*1000) +#endif + +#ifndef KHZ +#define KHZ (1000) +#endif + +#define EXYNOS_USBHOST_PHY_CTRL_OFFSET (0x4) +#define S3C64XX_USBPHY_ENABLE (0x1 << 16) +#define EXYNOS_USBPHY_ENABLE (0x1 << 0) +#define EXYNOS_USB20PHY_CFG_HOST_LINK (0x1 << 0) + +enum samsung_cpu_type { + TYPE_S3C64XX, + TYPE_EXYNOS4210, + TYPE_EXYNOS5250, +}; + +/* + * struct samsung_usbphy_drvdata - driver data for various SoC variants + * @cpu_type: machine identifier + * @devphy_en_mask: device phy enable mask for PHY CONTROL register + * @hostphy_en_mask: host phy enable mask for PHY CONTROL register + * @devphy_reg_offset: offset to DEVICE PHY CONTROL register from + * mapped address of system controller. + * @hostphy_reg_offset: offset to HOST PHY CONTROL register from + * mapped address of system controller. + * + * Here we have a separate mask for device type phy. + * Having different masks for host and device type phy helps + * in setting independent masks in case of SoCs like S5PV210, + * in which PHY0 and PHY1 enable bits belong to same register + * placed at position 0 and 1 respectively. + * Although for newer SoCs like exynos these bits belong to + * different registers altogether placed at position 0. + */ +struct samsung_usbphy_drvdata { + int cpu_type; + int devphy_en_mask; + int hostphy_en_mask; + u32 devphy_reg_offset; + u32 hostphy_reg_offset; +}; + +/* + * struct samsung_usbphy - transceiver driver state + * @phy: transceiver structure + * @plat: platform data + * @dev: The parent device supplied to the probe function + * @clk: usb phy clock + * @regs: usb phy controller registers memory base + * @pmuregs: USB device PHY_CONTROL register memory base + * @sysreg: USB2.0 PHY_CFG register memory base + * @ref_clk_freq: reference clock frequency selection + * @drv_data: driver data available for different SoCs + * @phy_type: Samsung SoCs specific phy types: #HOST + * #DEVICE + * @phy_usage: usage count for phy + * @lock: lock for phy operations + */ +struct samsung_usbphy { + struct usb_phy phy; + struct samsung_usbphy_data *plat; + struct device *dev; + struct clk *clk; + void __iomem *regs; + void __iomem *pmuregs; + void __iomem *sysreg; + int ref_clk_freq; + const struct samsung_usbphy_drvdata *drv_data; + enum samsung_usb_phy_type phy_type; + atomic_t phy_usage; + spinlock_t lock; +}; + +#define phy_to_sphy(x) container_of((x), struct samsung_usbphy, phy) + +static const struct of_device_id samsung_usbphy_dt_match[]; + +static inline const struct samsung_usbphy_drvdata +*samsung_usbphy_get_driver_data(struct platform_device *pdev) +{ + if (pdev->dev.of_node) { + const struct of_device_id *match; + match = of_match_node(samsung_usbphy_dt_match, + pdev->dev.of_node); + return match->data; + } + + return (struct samsung_usbphy_drvdata *) + platform_get_device_id(pdev)->driver_data; +} + +extern int samsung_usbphy_parse_dt(struct samsung_usbphy *sphy); +extern void samsung_usbphy_set_isolation(struct samsung_usbphy *sphy, bool on); +extern void samsung_usbphy_cfg_sel(struct samsung_usbphy *sphy); +extern int samsung_usbphy_set_type(struct usb_phy *phy, + enum samsung_usb_phy_type phy_type); +extern int samsung_usbphy_get_refclk_freq(struct samsung_usbphy *sphy); diff --git a/drivers/usb/phy/phy-samsung-usb2.c b/drivers/usb/phy/phy-samsung-usb2.c new file mode 100644 index 000000000000..45ffe036dacc --- /dev/null +++ b/drivers/usb/phy/phy-samsung-usb2.c @@ -0,0 +1,509 @@ +/* linux/drivers/usb/phy/phy-samsung-usb2.c + * + * Copyright (c) 2012 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Author: Praveen Paneri <p.paneri@samsung.com> + * + * Samsung USB2.0 PHY transceiver; talks to S3C HS OTG controller, EHCI-S5P and + * OHCI-EXYNOS controllers. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/usb/otg.h> +#include <linux/usb/samsung_usb_phy.h> +#include <linux/platform_data/samsung-usbphy.h> + +#include "phy-samsung-usb.h" + +static int samsung_usbphy_set_host(struct usb_otg *otg, struct usb_bus *host) +{ + if (!otg) + return -ENODEV; + + if (!otg->host) + otg->host = host; + + return 0; +} + +static bool exynos5_phyhost_is_on(void __iomem *regs) +{ + u32 reg; + + reg = readl(regs + EXYNOS5_PHY_HOST_CTRL0); + + return !(reg & HOST_CTRL0_SIDDQ); +} + +static void samsung_exynos5_usb2phy_enable(struct samsung_usbphy *sphy) +{ + void __iomem *regs = sphy->regs; + u32 phyclk = sphy->ref_clk_freq; + u32 phyhost; + u32 phyotg; + u32 phyhsic; + u32 ehcictrl; + u32 ohcictrl; + + /* + * phy_usage helps in keeping usage count for phy + * so that the first consumer enabling the phy is also + * the last consumer to disable it. + */ + + atomic_inc(&sphy->phy_usage); + + if (exynos5_phyhost_is_on(regs)) { + dev_info(sphy->dev, "Already power on PHY\n"); + return; + } + + /* Host configuration */ + phyhost = readl(regs + EXYNOS5_PHY_HOST_CTRL0); + + /* phy reference clock configuration */ + phyhost &= ~HOST_CTRL0_FSEL_MASK; + phyhost |= HOST_CTRL0_FSEL(phyclk); + + /* host phy reset */ + phyhost &= ~(HOST_CTRL0_PHYSWRST | + HOST_CTRL0_PHYSWRSTALL | + HOST_CTRL0_SIDDQ | + /* Enable normal mode of operation */ + HOST_CTRL0_FORCESUSPEND | + HOST_CTRL0_FORCESLEEP); + + /* Link reset */ + phyhost |= (HOST_CTRL0_LINKSWRST | + HOST_CTRL0_UTMISWRST | + /* COMMON Block configuration during suspend */ + HOST_CTRL0_COMMONON_N); + writel(phyhost, regs + EXYNOS5_PHY_HOST_CTRL0); + udelay(10); + phyhost &= ~(HOST_CTRL0_LINKSWRST | + HOST_CTRL0_UTMISWRST); + writel(phyhost, regs + EXYNOS5_PHY_HOST_CTRL0); + + /* OTG configuration */ + phyotg = readl(regs + EXYNOS5_PHY_OTG_SYS); + + /* phy reference clock configuration */ + phyotg &= ~OTG_SYS_FSEL_MASK; + phyotg |= OTG_SYS_FSEL(phyclk); + + /* Enable normal mode of operation */ + phyotg &= ~(OTG_SYS_FORCESUSPEND | + OTG_SYS_SIDDQ_UOTG | + OTG_SYS_FORCESLEEP | + OTG_SYS_REFCLKSEL_MASK | + /* COMMON Block configuration during suspend */ + OTG_SYS_COMMON_ON); + + /* OTG phy & link reset */ + phyotg |= (OTG_SYS_PHY0_SWRST | + OTG_SYS_LINKSWRST_UOTG | + OTG_SYS_PHYLINK_SWRESET | + OTG_SYS_OTGDISABLE | + /* Set phy refclk */ + OTG_SYS_REFCLKSEL_CLKCORE); + + writel(phyotg, regs + EXYNOS5_PHY_OTG_SYS); + udelay(10); + phyotg &= ~(OTG_SYS_PHY0_SWRST | + OTG_SYS_LINKSWRST_UOTG | + OTG_SYS_PHYLINK_SWRESET); + writel(phyotg, regs + EXYNOS5_PHY_OTG_SYS); + + /* HSIC phy configuration */ + phyhsic = (HSIC_CTRL_REFCLKDIV_12 | + HSIC_CTRL_REFCLKSEL | + HSIC_CTRL_PHYSWRST); + writel(phyhsic, regs + EXYNOS5_PHY_HSIC_CTRL1); + writel(phyhsic, regs + EXYNOS5_PHY_HSIC_CTRL2); + udelay(10); + phyhsic &= ~HSIC_CTRL_PHYSWRST; + writel(phyhsic, regs + EXYNOS5_PHY_HSIC_CTRL1); + writel(phyhsic, regs + EXYNOS5_PHY_HSIC_CTRL2); + + udelay(80); + + /* enable EHCI DMA burst */ + ehcictrl = readl(regs + EXYNOS5_PHY_HOST_EHCICTRL); + ehcictrl |= (HOST_EHCICTRL_ENAINCRXALIGN | + HOST_EHCICTRL_ENAINCR4 | + HOST_EHCICTRL_ENAINCR8 | + HOST_EHCICTRL_ENAINCR16); + writel(ehcictrl, regs + EXYNOS5_PHY_HOST_EHCICTRL); + + /* set ohci_suspend_on_n */ + ohcictrl = readl(regs + EXYNOS5_PHY_HOST_OHCICTRL); + ohcictrl |= HOST_OHCICTRL_SUSPLGCY; + writel(ohcictrl, regs + EXYNOS5_PHY_HOST_OHCICTRL); +} + +static void samsung_usb2phy_enable(struct samsung_usbphy *sphy) +{ + void __iomem *regs = sphy->regs; + u32 phypwr; + u32 phyclk; + u32 rstcon; + + /* set clock frequency for PLL */ + phyclk = sphy->ref_clk_freq; + phypwr = readl(regs + SAMSUNG_PHYPWR); + rstcon = readl(regs + SAMSUNG_RSTCON); + + switch (sphy->drv_data->cpu_type) { + case TYPE_S3C64XX: + phyclk &= ~PHYCLK_COMMON_ON_N; + phypwr &= ~PHYPWR_NORMAL_MASK; + rstcon |= RSTCON_SWRST; + break; + case TYPE_EXYNOS4210: + phypwr &= ~PHYPWR_NORMAL_MASK_PHY0; + rstcon |= RSTCON_SWRST; + default: + break; + } + + writel(phyclk, regs + SAMSUNG_PHYCLK); + /* Configure PHY0 for normal operation*/ + writel(phypwr, regs + SAMSUNG_PHYPWR); + /* reset all ports of PHY and Link */ + writel(rstcon, regs + SAMSUNG_RSTCON); + udelay(10); + rstcon &= ~RSTCON_SWRST; + writel(rstcon, regs + SAMSUNG_RSTCON); +} + +static void samsung_exynos5_usb2phy_disable(struct samsung_usbphy *sphy) +{ + void __iomem *regs = sphy->regs; + u32 phyhost; + u32 phyotg; + u32 phyhsic; + + if (atomic_dec_return(&sphy->phy_usage) > 0) { + dev_info(sphy->dev, "still being used\n"); + return; + } + + phyhsic = (HSIC_CTRL_REFCLKDIV_12 | + HSIC_CTRL_REFCLKSEL | + HSIC_CTRL_SIDDQ | + HSIC_CTRL_FORCESLEEP | + HSIC_CTRL_FORCESUSPEND); + writel(phyhsic, regs + EXYNOS5_PHY_HSIC_CTRL1); + writel(phyhsic, regs + EXYNOS5_PHY_HSIC_CTRL2); + + phyhost = readl(regs + EXYNOS5_PHY_HOST_CTRL0); + phyhost |= (HOST_CTRL0_SIDDQ | + HOST_CTRL0_FORCESUSPEND | + HOST_CTRL0_FORCESLEEP | + HOST_CTRL0_PHYSWRST | + HOST_CTRL0_PHYSWRSTALL); + writel(phyhost, regs + EXYNOS5_PHY_HOST_CTRL0); + + phyotg = readl(regs + EXYNOS5_PHY_OTG_SYS); + phyotg |= (OTG_SYS_FORCESUSPEND | + OTG_SYS_SIDDQ_UOTG | + OTG_SYS_FORCESLEEP); + writel(phyotg, regs + EXYNOS5_PHY_OTG_SYS); +} + +static void samsung_usb2phy_disable(struct samsung_usbphy *sphy) +{ + void __iomem *regs = sphy->regs; + u32 phypwr; + + phypwr = readl(regs + SAMSUNG_PHYPWR); + + switch (sphy->drv_data->cpu_type) { + case TYPE_S3C64XX: + phypwr |= PHYPWR_NORMAL_MASK; + break; + case TYPE_EXYNOS4210: + phypwr |= PHYPWR_NORMAL_MASK_PHY0; + default: + break; + } + + /* Disable analog and otg block power */ + writel(phypwr, regs + SAMSUNG_PHYPWR); +} + +/* + * The function passed to the usb driver for phy initialization + */ +static int samsung_usb2phy_init(struct usb_phy *phy) +{ + struct samsung_usbphy *sphy; + struct usb_bus *host = NULL; + unsigned long flags; + int ret = 0; + + sphy = phy_to_sphy(phy); + + host = phy->otg->host; + + /* Enable the phy clock */ + ret = clk_prepare_enable(sphy->clk); + if (ret) { + dev_err(sphy->dev, "%s: clk_prepare_enable failed\n", __func__); + return ret; + } + + spin_lock_irqsave(&sphy->lock, flags); + + if (host) { + /* setting default phy-type for USB 2.0 */ + if (!strstr(dev_name(host->controller), "ehci") || + !strstr(dev_name(host->controller), "ohci")) + samsung_usbphy_set_type(&sphy->phy, USB_PHY_TYPE_HOST); + } else { + samsung_usbphy_set_type(&sphy->phy, USB_PHY_TYPE_DEVICE); + } + + /* Disable phy isolation */ + if (sphy->plat && sphy->plat->pmu_isolation) + sphy->plat->pmu_isolation(false); + else + samsung_usbphy_set_isolation(sphy, false); + + /* Selecting Host/OTG mode; After reset USB2.0PHY_CFG: HOST */ + samsung_usbphy_cfg_sel(sphy); + + /* Initialize usb phy registers */ + if (sphy->drv_data->cpu_type == TYPE_EXYNOS5250) + samsung_exynos5_usb2phy_enable(sphy); + else + samsung_usb2phy_enable(sphy); + + spin_unlock_irqrestore(&sphy->lock, flags); + + /* Disable the phy clock */ + clk_disable_unprepare(sphy->clk); + + return ret; +} + +/* + * The function passed to the usb driver for phy shutdown + */ +static void samsung_usb2phy_shutdown(struct usb_phy *phy) +{ + struct samsung_usbphy *sphy; + struct usb_bus *host = NULL; + unsigned long flags; + + sphy = phy_to_sphy(phy); + + host = phy->otg->host; + + if (clk_prepare_enable(sphy->clk)) { + dev_err(sphy->dev, "%s: clk_prepare_enable failed\n", __func__); + return; + } + + spin_lock_irqsave(&sphy->lock, flags); + + if (host) { + /* setting default phy-type for USB 2.0 */ + if (!strstr(dev_name(host->controller), "ehci") || + !strstr(dev_name(host->controller), "ohci")) + samsung_usbphy_set_type(&sphy->phy, USB_PHY_TYPE_HOST); + } else { + samsung_usbphy_set_type(&sphy->phy, USB_PHY_TYPE_DEVICE); + } + + /* De-initialize usb phy registers */ + if (sphy->drv_data->cpu_type == TYPE_EXYNOS5250) + samsung_exynos5_usb2phy_disable(sphy); + else + samsung_usb2phy_disable(sphy); + + /* Enable phy isolation */ + if (sphy->plat && sphy->plat->pmu_isolation) + sphy->plat->pmu_isolation(true); + else + samsung_usbphy_set_isolation(sphy, true); + + spin_unlock_irqrestore(&sphy->lock, flags); + + clk_disable_unprepare(sphy->clk); +} + +static int samsung_usb2phy_probe(struct platform_device *pdev) +{ + struct samsung_usbphy *sphy; + struct usb_otg *otg; + struct samsung_usbphy_data *pdata = pdev->dev.platform_data; + const struct samsung_usbphy_drvdata *drv_data; + struct device *dev = &pdev->dev; + struct resource *phy_mem; + void __iomem *phy_base; + struct clk *clk; + int ret; + + phy_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!phy_mem) { + dev_err(dev, "%s: missing mem resource\n", __func__); + return -ENODEV; + } + + phy_base = devm_ioremap_resource(dev, phy_mem); + if (IS_ERR(phy_base)) + return PTR_ERR(phy_base); + + sphy = devm_kzalloc(dev, sizeof(*sphy), GFP_KERNEL); + if (!sphy) + return -ENOMEM; + + otg = devm_kzalloc(dev, sizeof(*otg), GFP_KERNEL); + if (!otg) + return -ENOMEM; + + drv_data = samsung_usbphy_get_driver_data(pdev); + + if (drv_data->cpu_type == TYPE_EXYNOS5250) + clk = devm_clk_get(dev, "usbhost"); + else + clk = devm_clk_get(dev, "otg"); + + if (IS_ERR(clk)) { + dev_err(dev, "Failed to get otg clock\n"); + return PTR_ERR(clk); + } + + sphy->dev = dev; + + if (dev->of_node) { + ret = samsung_usbphy_parse_dt(sphy); + if (ret < 0) + return ret; + } else { + if (!pdata) { + dev_err(dev, "no platform data specified\n"); + return -EINVAL; + } + } + + sphy->plat = pdata; + sphy->regs = phy_base; + sphy->clk = clk; + sphy->drv_data = drv_data; + sphy->phy.dev = sphy->dev; + sphy->phy.label = "samsung-usb2phy"; + sphy->phy.init = samsung_usb2phy_init; + sphy->phy.shutdown = samsung_usb2phy_shutdown; + sphy->ref_clk_freq = samsung_usbphy_get_refclk_freq(sphy); + + sphy->phy.otg = otg; + sphy->phy.otg->phy = &sphy->phy; + sphy->phy.otg->set_host = samsung_usbphy_set_host; + + spin_lock_init(&sphy->lock); + + platform_set_drvdata(pdev, sphy); + + return usb_add_phy(&sphy->phy, USB_PHY_TYPE_USB2); +} + +static int samsung_usb2phy_remove(struct platform_device *pdev) +{ + struct samsung_usbphy *sphy = platform_get_drvdata(pdev); + + usb_remove_phy(&sphy->phy); + + if (sphy->pmuregs) + iounmap(sphy->pmuregs); + if (sphy->sysreg) + iounmap(sphy->sysreg); + + return 0; +} + +static const struct samsung_usbphy_drvdata usb2phy_s3c64xx = { + .cpu_type = TYPE_S3C64XX, + .devphy_en_mask = S3C64XX_USBPHY_ENABLE, +}; + +static const struct samsung_usbphy_drvdata usb2phy_exynos4 = { + .cpu_type = TYPE_EXYNOS4210, + .devphy_en_mask = EXYNOS_USBPHY_ENABLE, + .hostphy_en_mask = EXYNOS_USBPHY_ENABLE, +}; + +static struct samsung_usbphy_drvdata usb2phy_exynos5 = { + .cpu_type = TYPE_EXYNOS5250, + .hostphy_en_mask = EXYNOS_USBPHY_ENABLE, + .hostphy_reg_offset = EXYNOS_USBHOST_PHY_CTRL_OFFSET, +}; + +#ifdef CONFIG_OF +static const struct of_device_id samsung_usbphy_dt_match[] = { + { + .compatible = "samsung,s3c64xx-usb2phy", + .data = &usb2phy_s3c64xx, + }, { + .compatible = "samsung,exynos4210-usb2phy", + .data = &usb2phy_exynos4, + }, { + .compatible = "samsung,exynos5250-usb2phy", + .data = &usb2phy_exynos5 + }, + {}, +}; +MODULE_DEVICE_TABLE(of, samsung_usbphy_dt_match); +#endif + +static struct platform_device_id samsung_usbphy_driver_ids[] = { + { + .name = "s3c64xx-usb2phy", + .driver_data = (unsigned long)&usb2phy_s3c64xx, + }, { + .name = "exynos4210-usb2phy", + .driver_data = (unsigned long)&usb2phy_exynos4, + }, { + .name = "exynos5250-usb2phy", + .driver_data = (unsigned long)&usb2phy_exynos5, + }, + {}, +}; + +MODULE_DEVICE_TABLE(platform, samsung_usbphy_driver_ids); + +static struct platform_driver samsung_usb2phy_driver = { + .probe = samsung_usb2phy_probe, + .remove = samsung_usb2phy_remove, + .id_table = samsung_usbphy_driver_ids, + .driver = { + .name = "samsung-usb2phy", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(samsung_usbphy_dt_match), + }, +}; + +module_platform_driver(samsung_usb2phy_driver); + +MODULE_DESCRIPTION("Samsung USB 2.0 phy controller"); +MODULE_AUTHOR("Praveen Paneri <p.paneri@samsung.com>"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:samsung-usb2phy"); diff --git a/drivers/usb/phy/phy-samsung-usb3.c b/drivers/usb/phy/phy-samsung-usb3.c new file mode 100644 index 000000000000..133f3d0c554f --- /dev/null +++ b/drivers/usb/phy/phy-samsung-usb3.c @@ -0,0 +1,347 @@ +/* linux/drivers/usb/phy/phy-samsung-usb3.c + * + * Copyright (c) 2013 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Author: Vivek Gautam <gautam.vivek@samsung.com> + * + * Samsung USB 3.0 PHY transceiver; talks to DWC3 controller. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/clk.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/usb/samsung_usb_phy.h> +#include <linux/platform_data/samsung-usbphy.h> + +#include "phy-samsung-usb.h" + +/* + * Sets the phy clk as EXTREFCLK (XXTI) which is internal clock from clock core. + */ +static u32 samsung_usb3phy_set_refclk(struct samsung_usbphy *sphy) +{ + u32 reg; + u32 refclk; + + refclk = sphy->ref_clk_freq; + + reg = PHYCLKRST_REFCLKSEL_EXT_REFCLK | + PHYCLKRST_FSEL(refclk); + + switch (refclk) { + case FSEL_CLKSEL_50M: + reg |= (PHYCLKRST_MPLL_MULTIPLIER_50M_REF | + PHYCLKRST_SSC_REFCLKSEL(0x00)); + break; + case FSEL_CLKSEL_20M: + reg |= (PHYCLKRST_MPLL_MULTIPLIER_20MHZ_REF | + PHYCLKRST_SSC_REFCLKSEL(0x00)); + break; + case FSEL_CLKSEL_19200K: + reg |= (PHYCLKRST_MPLL_MULTIPLIER_19200KHZ_REF | + PHYCLKRST_SSC_REFCLKSEL(0x88)); + break; + case FSEL_CLKSEL_24M: + default: + reg |= (PHYCLKRST_MPLL_MULTIPLIER_24MHZ_REF | + PHYCLKRST_SSC_REFCLKSEL(0x88)); + break; + } + + return reg; +} + +static int samsung_exynos5_usb3phy_enable(struct samsung_usbphy *sphy) +{ + void __iomem *regs = sphy->regs; + u32 phyparam0; + u32 phyparam1; + u32 linksystem; + u32 phybatchg; + u32 phytest; + u32 phyclkrst; + + /* Reset USB 3.0 PHY */ + writel(0x0, regs + EXYNOS5_DRD_PHYREG0); + + phyparam0 = readl(regs + EXYNOS5_DRD_PHYPARAM0); + /* Select PHY CLK source */ + phyparam0 &= ~PHYPARAM0_REF_USE_PAD; + /* Set Loss-of-Signal Detector sensitivity */ + phyparam0 &= ~PHYPARAM0_REF_LOSLEVEL_MASK; + phyparam0 |= PHYPARAM0_REF_LOSLEVEL; + writel(phyparam0, regs + EXYNOS5_DRD_PHYPARAM0); + + writel(0x0, regs + EXYNOS5_DRD_PHYRESUME); + + /* + * Setting the Frame length Adj value[6:1] to default 0x20 + * See xHCI 1.0 spec, 5.2.4 + */ + linksystem = LINKSYSTEM_XHCI_VERSION_CONTROL | + LINKSYSTEM_FLADJ(0x20); + writel(linksystem, regs + EXYNOS5_DRD_LINKSYSTEM); + + phyparam1 = readl(regs + EXYNOS5_DRD_PHYPARAM1); + /* Set Tx De-Emphasis level */ + phyparam1 &= ~PHYPARAM1_PCS_TXDEEMPH_MASK; + phyparam1 |= PHYPARAM1_PCS_TXDEEMPH; + writel(phyparam1, regs + EXYNOS5_DRD_PHYPARAM1); + + phybatchg = readl(regs + EXYNOS5_DRD_PHYBATCHG); + phybatchg |= PHYBATCHG_UTMI_CLKSEL; + writel(phybatchg, regs + EXYNOS5_DRD_PHYBATCHG); + + /* PHYTEST POWERDOWN Control */ + phytest = readl(regs + EXYNOS5_DRD_PHYTEST); + phytest &= ~(PHYTEST_POWERDOWN_SSP | + PHYTEST_POWERDOWN_HSP); + writel(phytest, regs + EXYNOS5_DRD_PHYTEST); + + /* UTMI Power Control */ + writel(PHYUTMI_OTGDISABLE, regs + EXYNOS5_DRD_PHYUTMI); + + phyclkrst = samsung_usb3phy_set_refclk(sphy); + + phyclkrst |= PHYCLKRST_PORTRESET | + /* Digital power supply in normal operating mode */ + PHYCLKRST_RETENABLEN | + /* Enable ref clock for SS function */ + PHYCLKRST_REF_SSP_EN | + /* Enable spread spectrum */ + PHYCLKRST_SSC_EN | + /* Power down HS Bias and PLL blocks in suspend mode */ + PHYCLKRST_COMMONONN; + + writel(phyclkrst, regs + EXYNOS5_DRD_PHYCLKRST); + + udelay(10); + + phyclkrst &= ~(PHYCLKRST_PORTRESET); + writel(phyclkrst, regs + EXYNOS5_DRD_PHYCLKRST); + + return 0; +} + +static void samsung_exynos5_usb3phy_disable(struct samsung_usbphy *sphy) +{ + u32 phyutmi; + u32 phyclkrst; + u32 phytest; + void __iomem *regs = sphy->regs; + + phyutmi = PHYUTMI_OTGDISABLE | + PHYUTMI_FORCESUSPEND | + PHYUTMI_FORCESLEEP; + writel(phyutmi, regs + EXYNOS5_DRD_PHYUTMI); + + /* Resetting the PHYCLKRST enable bits to reduce leakage current */ + phyclkrst = readl(regs + EXYNOS5_DRD_PHYCLKRST); + phyclkrst &= ~(PHYCLKRST_REF_SSP_EN | + PHYCLKRST_SSC_EN | + PHYCLKRST_COMMONONN); + writel(phyclkrst, regs + EXYNOS5_DRD_PHYCLKRST); + + /* Control PHYTEST to remove leakage current */ + phytest = readl(regs + EXYNOS5_DRD_PHYTEST); + phytest |= (PHYTEST_POWERDOWN_SSP | + PHYTEST_POWERDOWN_HSP); + writel(phytest, regs + EXYNOS5_DRD_PHYTEST); +} + +static int samsung_usb3phy_init(struct usb_phy *phy) +{ + struct samsung_usbphy *sphy; + unsigned long flags; + int ret = 0; + + sphy = phy_to_sphy(phy); + + /* Enable the phy clock */ + ret = clk_prepare_enable(sphy->clk); + if (ret) { + dev_err(sphy->dev, "%s: clk_prepare_enable failed\n", __func__); + return ret; + } + + spin_lock_irqsave(&sphy->lock, flags); + + /* setting default phy-type for USB 3.0 */ + samsung_usbphy_set_type(&sphy->phy, USB_PHY_TYPE_DEVICE); + + /* Disable phy isolation */ + samsung_usbphy_set_isolation(sphy, false); + + /* Initialize usb phy registers */ + samsung_exynos5_usb3phy_enable(sphy); + + spin_unlock_irqrestore(&sphy->lock, flags); + + /* Disable the phy clock */ + clk_disable_unprepare(sphy->clk); + + return ret; +} + +/* + * The function passed to the usb driver for phy shutdown + */ +static void samsung_usb3phy_shutdown(struct usb_phy *phy) +{ + struct samsung_usbphy *sphy; + unsigned long flags; + + sphy = phy_to_sphy(phy); + + if (clk_prepare_enable(sphy->clk)) { + dev_err(sphy->dev, "%s: clk_prepare_enable failed\n", __func__); + return; + } + + spin_lock_irqsave(&sphy->lock, flags); + + /* setting default phy-type for USB 3.0 */ + samsung_usbphy_set_type(&sphy->phy, USB_PHY_TYPE_DEVICE); + + /* De-initialize usb phy registers */ + samsung_exynos5_usb3phy_disable(sphy); + + /* Enable phy isolation */ + samsung_usbphy_set_isolation(sphy, true); + + spin_unlock_irqrestore(&sphy->lock, flags); + + clk_disable_unprepare(sphy->clk); +} + +static int samsung_usb3phy_probe(struct platform_device *pdev) +{ + struct samsung_usbphy *sphy; + struct samsung_usbphy_data *pdata = pdev->dev.platform_data; + struct device *dev = &pdev->dev; + struct resource *phy_mem; + void __iomem *phy_base; + struct clk *clk; + int ret; + + phy_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!phy_mem) { + dev_err(dev, "%s: missing mem resource\n", __func__); + return -ENODEV; + } + + phy_base = devm_ioremap_resource(dev, phy_mem); + if (IS_ERR(phy_base)) + return PTR_ERR(phy_base); + + sphy = devm_kzalloc(dev, sizeof(*sphy), GFP_KERNEL); + if (!sphy) + return -ENOMEM; + + clk = devm_clk_get(dev, "usbdrd30"); + if (IS_ERR(clk)) { + dev_err(dev, "Failed to get device clock\n"); + return PTR_ERR(clk); + } + + sphy->dev = dev; + + if (dev->of_node) { + ret = samsung_usbphy_parse_dt(sphy); + if (ret < 0) + return ret; + } else { + if (!pdata) { + dev_err(dev, "no platform data specified\n"); + return -EINVAL; + } + } + + sphy->plat = pdata; + sphy->regs = phy_base; + sphy->clk = clk; + sphy->phy.dev = sphy->dev; + sphy->phy.label = "samsung-usb3phy"; + sphy->phy.init = samsung_usb3phy_init; + sphy->phy.shutdown = samsung_usb3phy_shutdown; + sphy->drv_data = samsung_usbphy_get_driver_data(pdev); + sphy->ref_clk_freq = samsung_usbphy_get_refclk_freq(sphy); + + spin_lock_init(&sphy->lock); + + platform_set_drvdata(pdev, sphy); + + return usb_add_phy(&sphy->phy, USB_PHY_TYPE_USB3); +} + +static int samsung_usb3phy_remove(struct platform_device *pdev) +{ + struct samsung_usbphy *sphy = platform_get_drvdata(pdev); + + usb_remove_phy(&sphy->phy); + + if (sphy->pmuregs) + iounmap(sphy->pmuregs); + if (sphy->sysreg) + iounmap(sphy->sysreg); + + return 0; +} + +static struct samsung_usbphy_drvdata usb3phy_exynos5 = { + .cpu_type = TYPE_EXYNOS5250, + .devphy_en_mask = EXYNOS_USBPHY_ENABLE, +}; + +#ifdef CONFIG_OF +static const struct of_device_id samsung_usbphy_dt_match[] = { + { + .compatible = "samsung,exynos5250-usb3phy", + .data = &usb3phy_exynos5 + }, + {}, +}; +MODULE_DEVICE_TABLE(of, samsung_usbphy_dt_match); +#endif + +static struct platform_device_id samsung_usbphy_driver_ids[] = { + { + .name = "exynos5250-usb3phy", + .driver_data = (unsigned long)&usb3phy_exynos5, + }, + {}, +}; + +MODULE_DEVICE_TABLE(platform, samsung_usbphy_driver_ids); + +static struct platform_driver samsung_usb3phy_driver = { + .probe = samsung_usb3phy_probe, + .remove = samsung_usb3phy_remove, + .id_table = samsung_usbphy_driver_ids, + .driver = { + .name = "samsung-usb3phy", + .owner = THIS_MODULE, + .of_match_table = of_match_ptr(samsung_usbphy_dt_match), + }, +}; + +module_platform_driver(samsung_usb3phy_driver); + +MODULE_DESCRIPTION("Samsung USB 3.0 phy controller"); +MODULE_AUTHOR("Vivek Gautam <gautam.vivek@samsung.com>"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:samsung-usb3phy"); diff --git a/drivers/usb/phy/tegra_usb_phy.c b/drivers/usb/phy/phy-tegra-usb.c index 5487d38481af..5487d38481af 100644 --- a/drivers/usb/phy/tegra_usb_phy.c +++ b/drivers/usb/phy/phy-tegra-usb.c diff --git a/drivers/usb/otg/twl4030-usb.c b/drivers/usb/phy/phy-twl4030-usb.c index 24d573a134b1..8f78d2d40722 100644 --- a/drivers/usb/otg/twl4030-usb.c +++ b/drivers/usb/phy/phy-twl4030-usb.c @@ -163,6 +163,8 @@ struct twl4030_usb { bool vbus_supplied; u8 asleep; bool irq_enabled; + + struct delayed_work id_workaround_work; }; /* internal define on top of container_of */ @@ -246,6 +248,25 @@ twl4030_usb_clear_bits(struct twl4030_usb *twl, u8 reg, u8 bits) /*-------------------------------------------------------------------------*/ +static bool twl4030_is_driving_vbus(struct twl4030_usb *twl) +{ + int ret; + + ret = twl4030_usb_read(twl, PHY_CLK_CTRL_STS); + if (ret < 0 || !(ret & PHY_DPLL_CLK)) + /* + * if clocks are off, registers are not updated, + * but we can assume we don't drive VBUS in this case + */ + return false; + + ret = twl4030_usb_read(twl, ULPI_OTG_CTRL); + if (ret < 0) + return false; + + return (ret & (ULPI_OTG_DRVVBUS | ULPI_OTG_CHRGVBUS)) ? true : false; +} + static enum omap_musb_vbus_id_status twl4030_usb_linkstat(struct twl4030_usb *twl) { @@ -268,13 +289,19 @@ static enum omap_musb_vbus_id_status if (status < 0) dev_err(twl->dev, "USB link status err %d\n", status); else if (status & (BIT(7) | BIT(2))) { - if (status & (BIT(7))) - twl->vbus_supplied = true; + if (status & BIT(7)) { + if (twl4030_is_driving_vbus(twl)) + status &= ~BIT(7); + else + twl->vbus_supplied = true; + } if (status & BIT(2)) linkstat = OMAP_MUSB_ID_GROUND; - else + else if (status & BIT(7)) linkstat = OMAP_MUSB_VBUS_VALID; + else + linkstat = OMAP_MUSB_VBUS_OFF; } else { if (twl->linkstat != OMAP_MUSB_UNKNOWN) linkstat = OMAP_MUSB_VBUS_OFF; @@ -287,10 +314,6 @@ static enum omap_musb_vbus_id_status * are registered, and that both are active... */ - spin_lock_irq(&twl->lock); - twl->linkstat = linkstat; - spin_unlock_irq(&twl->lock); - return linkstat; } @@ -361,9 +384,17 @@ static void __twl4030_phy_power(struct twl4030_usb *twl, int on) static void twl4030_phy_power(struct twl4030_usb *twl, int on) { + int ret; + if (on) { - regulator_enable(twl->usb3v1); - regulator_enable(twl->usb1v8); + ret = regulator_enable(twl->usb3v1); + if (ret) + dev_err(twl->dev, "Failed to enable usb3v1\n"); + + ret = regulator_enable(twl->usb1v8); + if (ret) + dev_err(twl->dev, "Failed to enable usb1v8\n"); + /* * Disabling usb3v1 regulator (= writing 0 to VUSB3V1_DEV_GRP * in twl4030) resets the VUSB_DEDICATED2 register. This reset @@ -372,7 +403,11 @@ static void twl4030_phy_power(struct twl4030_usb *twl, int on) * is re-activated. This ensures that VUSB3V1 is really active. */ twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB_DEDICATED2); - regulator_enable(twl->usb1v5); + + ret = regulator_enable(twl->usb1v5); + if (ret) + dev_err(twl->dev, "Failed to enable usb1v5\n"); + __twl4030_phy_power(twl, 1); twl4030_usb_write(twl, PHY_CLK_CTRL, twl4030_usb_read(twl, PHY_CLK_CTRL) | @@ -412,6 +447,16 @@ static void twl4030_phy_resume(struct twl4030_usb *twl) __twl4030_phy_resume(twl); twl->asleep = 0; dev_dbg(twl->dev, "%s\n", __func__); + + /* + * XXX When VBUS gets driven after musb goes to A mode, + * ID_PRES related interrupts no longer arrive, why? + * Register itself is updated fine though, so we must poll. + */ + if (twl->linkstat == OMAP_MUSB_ID_GROUND) { + cancel_delayed_work(&twl->id_workaround_work); + schedule_delayed_work(&twl->id_workaround_work, HZ); + } } static int twl4030_usb_ldo_init(struct twl4030_usb *twl) @@ -432,7 +477,7 @@ static int twl4030_usb_ldo_init(struct twl4030_usb *twl) /* Initialize 3.1V regulator */ twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB3V1_DEV_GRP); - twl->usb3v1 = regulator_get(twl->dev, "usb3v1"); + twl->usb3v1 = devm_regulator_get(twl->dev, "usb3v1"); if (IS_ERR(twl->usb3v1)) return -ENODEV; @@ -441,18 +486,18 @@ static int twl4030_usb_ldo_init(struct twl4030_usb *twl) /* Initialize 1.5V regulator */ twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB1V5_DEV_GRP); - twl->usb1v5 = regulator_get(twl->dev, "usb1v5"); + twl->usb1v5 = devm_regulator_get(twl->dev, "usb1v5"); if (IS_ERR(twl->usb1v5)) - goto fail1; + return -ENODEV; twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB1V5_TYPE); /* Initialize 1.8V regulator */ twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB1V8_DEV_GRP); - twl->usb1v8 = regulator_get(twl->dev, "usb1v8"); + twl->usb1v8 = devm_regulator_get(twl->dev, "usb1v8"); if (IS_ERR(twl->usb1v8)) - goto fail2; + return -ENODEV; twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB1V8_TYPE); @@ -461,14 +506,6 @@ static int twl4030_usb_ldo_init(struct twl4030_usb *twl) TWL4030_PM_MASTER_PROTECT_KEY); return 0; - -fail2: - regulator_put(twl->usb1v5); - twl->usb1v5 = NULL; -fail1: - regulator_put(twl->usb3v1); - twl->usb3v1 = NULL; - return -ENODEV; } static ssize_t twl4030_usb_vbus_show(struct device *dev, @@ -491,9 +528,18 @@ static irqreturn_t twl4030_usb_irq(int irq, void *_twl) { struct twl4030_usb *twl = _twl; enum omap_musb_vbus_id_status status; + bool status_changed = false; status = twl4030_usb_linkstat(twl); - if (status > 0) { + + spin_lock_irq(&twl->lock); + if (status >= 0 && status != twl->linkstat) { + twl->linkstat = status; + status_changed = true; + } + spin_unlock_irq(&twl->lock); + + if (status_changed) { /* FIXME add a set_power() method so that B-devices can * configure the charger appropriately. It's not always * correct to consume VBUS power, and how much current to @@ -505,37 +551,62 @@ static irqreturn_t twl4030_usb_irq(int irq, void *_twl) * USB_LINK_VBUS state. musb_hdrc won't care until it * starts to handle softconnect right. */ - if (status == OMAP_MUSB_VBUS_OFF || - status == OMAP_MUSB_ID_FLOAT) - twl4030_phy_suspend(twl, 0); - else - twl4030_phy_resume(twl); - - omap_musb_mailbox(twl->linkstat); + omap_musb_mailbox(status); } sysfs_notify(&twl->dev->kobj, NULL, "vbus"); return IRQ_HANDLED; } -static void twl4030_usb_phy_init(struct twl4030_usb *twl) +static void twl4030_id_workaround_work(struct work_struct *work) { + struct twl4030_usb *twl = container_of(work, struct twl4030_usb, + id_workaround_work.work); enum omap_musb_vbus_id_status status; + bool status_changed = false; status = twl4030_usb_linkstat(twl); - if (status > 0) { - if (status == OMAP_MUSB_VBUS_OFF || - status == OMAP_MUSB_ID_FLOAT) { - __twl4030_phy_power(twl, 0); - twl->asleep = 1; - } else { - __twl4030_phy_resume(twl); - twl->asleep = 0; - } - omap_musb_mailbox(twl->linkstat); + spin_lock_irq(&twl->lock); + if (status >= 0 && status != twl->linkstat) { + twl->linkstat = status; + status_changed = true; + } + spin_unlock_irq(&twl->lock); + + if (status_changed) { + dev_dbg(twl->dev, "handle missing status change to %d\n", + status); + omap_musb_mailbox(status); } + + /* don't schedule during sleep - irq works right then */ + if (status == OMAP_MUSB_ID_GROUND && !twl->asleep) { + cancel_delayed_work(&twl->id_workaround_work); + schedule_delayed_work(&twl->id_workaround_work, HZ); + } +} + +static int twl4030_usb_phy_init(struct usb_phy *phy) +{ + struct twl4030_usb *twl = phy_to_twl(phy); + enum omap_musb_vbus_id_status status; + + /* + * Start in sleep state, we'll get called through set_suspend() + * callback when musb is runtime resumed and it's time to start. + */ + __twl4030_phy_power(twl, 0); + twl->asleep = 1; + + status = twl4030_usb_linkstat(twl); + twl->linkstat = status; + + if (status == OMAP_MUSB_ID_GROUND || status == OMAP_MUSB_VBUS_VALID) + omap_musb_mailbox(twl->linkstat); + sysfs_notify(&twl->dev->kobj, NULL, "vbus"); + return 0; } static int twl4030_set_suspend(struct usb_phy *x, int suspend) @@ -612,6 +683,7 @@ static int twl4030_usb_probe(struct platform_device *pdev) twl->phy.otg = otg; twl->phy.type = USB_PHY_TYPE_USB2; twl->phy.set_suspend = twl4030_set_suspend; + twl->phy.init = twl4030_usb_phy_init; otg->phy = &twl->phy; otg->set_host = twl4030_set_host; @@ -620,6 +692,8 @@ static int twl4030_usb_probe(struct platform_device *pdev) /* init spinlock for workqueue */ spin_lock_init(&twl->lock); + INIT_DELAYED_WORK(&twl->id_workaround_work, twl4030_id_workaround_work); + err = twl4030_usb_ldo_init(twl); if (err) { dev_err(&pdev->dev, "ldo init failed\n"); @@ -640,20 +714,15 @@ static int twl4030_usb_probe(struct platform_device *pdev) * need both handles, otherwise just one suffices. */ twl->irq_enabled = true; - status = request_threaded_irq(twl->irq, NULL, twl4030_usb_irq, - IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING | - IRQF_ONESHOT, "twl4030_usb", twl); + status = devm_request_threaded_irq(twl->dev, twl->irq, NULL, + twl4030_usb_irq, IRQF_TRIGGER_FALLING | + IRQF_TRIGGER_RISING | IRQF_ONESHOT, "twl4030_usb", twl); if (status < 0) { dev_dbg(&pdev->dev, "can't get IRQ %d, err %d\n", twl->irq, status); return status; } - /* Power down phy or make it work according to - * current link state. - */ - twl4030_usb_phy_init(twl); - dev_info(&pdev->dev, "Initialized TWL4030 USB module\n"); return 0; } @@ -663,7 +732,7 @@ static int twl4030_usb_remove(struct platform_device *pdev) struct twl4030_usb *twl = platform_get_drvdata(pdev); int val; - free_irq(twl->irq, twl); + cancel_delayed_work(&twl->id_workaround_work); device_remove_file(twl->dev, &dev_attr_vbus); /* set transceiver mode to power on defaults */ @@ -685,9 +754,6 @@ static int twl4030_usb_remove(struct platform_device *pdev) if (!twl->asleep) twl4030_phy_power(twl, 0); - regulator_put(twl->usb1v5); - regulator_put(twl->usb1v8); - regulator_put(twl->usb3v1); return 0; } diff --git a/drivers/usb/otg/twl6030-usb.c b/drivers/usb/phy/phy-twl6030-usb.c index 7f3c5b0e3f66..9de7ada90a8b 100644 --- a/drivers/usb/otg/twl6030-usb.c +++ b/drivers/usb/phy/phy-twl6030-usb.c @@ -211,6 +211,7 @@ static irqreturn_t twl6030_usb_irq(int irq, void *_twl) struct twl6030_usb *twl = _twl; enum omap_musb_vbus_id_status status = OMAP_MUSB_UNKNOWN; u8 vbus_state, hw_state; + int ret; hw_state = twl6030_readb(twl, TWL6030_MODULE_ID0, STS_HW_CONDITIONS); @@ -218,7 +219,10 @@ static irqreturn_t twl6030_usb_irq(int irq, void *_twl) CONTROLLER_STAT1); if (!(hw_state & STS_USB_ID)) { if (vbus_state & VBUS_DET) { - regulator_enable(twl->usb3v3); + ret = regulator_enable(twl->usb3v3); + if (ret) + dev_err(twl->dev, "Failed to enable usb3v3\n"); + twl->asleep = 1; status = OMAP_MUSB_VBUS_VALID; twl->linkstat = status; @@ -245,12 +249,15 @@ static irqreturn_t twl6030_usbotg_irq(int irq, void *_twl) struct twl6030_usb *twl = _twl; enum omap_musb_vbus_id_status status = OMAP_MUSB_UNKNOWN; u8 hw_state; + int ret; hw_state = twl6030_readb(twl, TWL6030_MODULE_ID0, STS_HW_CONDITIONS); if (hw_state & STS_USB_ID) { + ret = regulator_enable(twl->usb3v3); + if (ret) + dev_err(twl->dev, "Failed to enable usb3v3\n"); - regulator_enable(twl->usb3v3); twl->asleep = 1; twl6030_writeb(twl, TWL_MODULE_USB, 0x1, USB_ID_INT_EN_HI_CLR); twl6030_writeb(twl, TWL_MODULE_USB, 0x10, USB_ID_INT_EN_HI_SET); diff --git a/drivers/usb/otg/ulpi_viewport.c b/drivers/usb/phy/phy-ulpi-viewport.c index c5ba7e5423fc..c5ba7e5423fc 100644 --- a/drivers/usb/otg/ulpi_viewport.c +++ b/drivers/usb/phy/phy-ulpi-viewport.c diff --git a/drivers/usb/otg/ulpi.c b/drivers/usb/phy/phy-ulpi.c index 217339dd7a90..217339dd7a90 100644 --- a/drivers/usb/otg/ulpi.c +++ b/drivers/usb/phy/phy-ulpi.c diff --git a/drivers/usb/otg/otg.c b/drivers/usb/phy/phy.c index 2bd03d261a50..f52c006417ff 100644 --- a/drivers/usb/otg/otg.c +++ b/drivers/usb/phy/phy.c @@ -1,14 +1,13 @@ /* - * otg.c -- USB OTG utility code + * phy.c -- USB phy handling * - * Copyright (C) 2004 Texas Instruments + * Copyright (C) 2004-2013 Texas Instruments * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ - #include <linux/kernel.h> #include <linux/export.h> #include <linux/err.h> @@ -17,7 +16,7 @@ #include <linux/slab.h> #include <linux/of.h> -#include <linux/usb/otg.h> +#include <linux/usb/phy.h> static LIST_HEAD(phy_list); static LIST_HEAD(phy_bind_list); @@ -110,7 +109,7 @@ struct usb_phy *devm_usb_get_phy(struct device *dev, enum usb_phy_type type) return phy; } -EXPORT_SYMBOL(devm_usb_get_phy); +EXPORT_SYMBOL_GPL(devm_usb_get_phy); /** * usb_get_phy - find the USB PHY @@ -143,7 +142,7 @@ err0: return phy; } -EXPORT_SYMBOL(usb_get_phy); +EXPORT_SYMBOL_GPL(usb_get_phy); /** * devm_usb_get_phy_by_phandle - find the USB PHY by phandle @@ -207,7 +206,7 @@ err0: return phy; } -EXPORT_SYMBOL(devm_usb_get_phy_by_phandle); +EXPORT_SYMBOL_GPL(devm_usb_get_phy_by_phandle); /** * usb_get_phy_dev - find the USB PHY @@ -240,7 +239,7 @@ err0: return phy; } -EXPORT_SYMBOL(usb_get_phy_dev); +EXPORT_SYMBOL_GPL(usb_get_phy_dev); /** * devm_usb_get_phy_dev - find the USB PHY using device ptr and index @@ -270,7 +269,7 @@ struct usb_phy *devm_usb_get_phy_dev(struct device *dev, u8 index) return phy; } -EXPORT_SYMBOL(devm_usb_get_phy_dev); +EXPORT_SYMBOL_GPL(devm_usb_get_phy_dev); /** * devm_usb_put_phy - release the USB PHY @@ -289,7 +288,7 @@ void devm_usb_put_phy(struct device *dev, struct usb_phy *phy) r = devres_destroy(dev, devm_usb_phy_release, devm_usb_phy_match, phy); dev_WARN_ONCE(dev, r, "couldn't find PHY resource\n"); } -EXPORT_SYMBOL(devm_usb_put_phy); +EXPORT_SYMBOL_GPL(devm_usb_put_phy); /** * usb_put_phy - release the USB PHY @@ -308,7 +307,7 @@ void usb_put_phy(struct usb_phy *x) module_put(owner); } } -EXPORT_SYMBOL(usb_put_phy); +EXPORT_SYMBOL_GPL(usb_put_phy); /** * usb_add_phy - declare the USB PHY @@ -348,7 +347,7 @@ out: spin_unlock_irqrestore(&phy_lock, flags); return ret; } -EXPORT_SYMBOL(usb_add_phy); +EXPORT_SYMBOL_GPL(usb_add_phy); /** * usb_add_phy_dev - declare the USB PHY @@ -378,7 +377,7 @@ int usb_add_phy_dev(struct usb_phy *x) spin_unlock_irqrestore(&phy_lock, flags); return 0; } -EXPORT_SYMBOL(usb_add_phy_dev); +EXPORT_SYMBOL_GPL(usb_add_phy_dev); /** * usb_remove_phy - remove the OTG PHY @@ -400,7 +399,7 @@ void usb_remove_phy(struct usb_phy *x) } spin_unlock_irqrestore(&phy_lock, flags); } -EXPORT_SYMBOL(usb_remove_phy); +EXPORT_SYMBOL_GPL(usb_remove_phy); /** * usb_bind_phy - bind the phy and the controller that uses the phy @@ -437,38 +436,3 @@ int __init usb_bind_phy(const char *dev_name, u8 index, return 0; } EXPORT_SYMBOL_GPL(usb_bind_phy); - -const char *otg_state_string(enum usb_otg_state state) -{ - switch (state) { - case OTG_STATE_A_IDLE: - return "a_idle"; - case OTG_STATE_A_WAIT_VRISE: - return "a_wait_vrise"; - case OTG_STATE_A_WAIT_BCON: - return "a_wait_bcon"; - case OTG_STATE_A_HOST: - return "a_host"; - case OTG_STATE_A_SUSPEND: - return "a_suspend"; - case OTG_STATE_A_PERIPHERAL: - return "a_peripheral"; - case OTG_STATE_A_WAIT_VFALL: - return "a_wait_vfall"; - case OTG_STATE_A_VBUS_ERR: - return "a_vbus_err"; - case OTG_STATE_B_IDLE: - return "b_idle"; - case OTG_STATE_B_SRP_INIT: - return "b_srp_init"; - case OTG_STATE_B_PERIPHERAL: - return "b_peripheral"; - case OTG_STATE_B_WAIT_ACON: - return "b_wait_acon"; - case OTG_STATE_B_HOST: - return "b_host"; - default: - return "UNDEFINED"; - } -} -EXPORT_SYMBOL(otg_state_string); diff --git a/drivers/usb/phy/samsung-usbphy.c b/drivers/usb/phy/samsung-usbphy.c deleted file mode 100644 index 967101ec15fd..000000000000 --- a/drivers/usb/phy/samsung-usbphy.c +++ /dev/null @@ -1,928 +0,0 @@ -/* linux/drivers/usb/phy/samsung-usbphy.c - * - * Copyright (c) 2012 Samsung Electronics Co., Ltd. - * http://www.samsung.com - * - * Author: Praveen Paneri <p.paneri@samsung.com> - * - * Samsung USB2.0 PHY transceiver; talks to S3C HS OTG controller, EHCI-S5P and - * OHCI-EXYNOS controllers. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/clk.h> -#include <linux/delay.h> -#include <linux/device.h> -#include <linux/err.h> -#include <linux/io.h> -#include <linux/of.h> -#include <linux/of_address.h> -#include <linux/usb/otg.h> -#include <linux/usb/samsung_usb_phy.h> -#include <linux/platform_data/samsung-usbphy.h> - -/* Register definitions */ - -#define SAMSUNG_PHYPWR (0x00) - -#define PHYPWR_NORMAL_MASK (0x19 << 0) -#define PHYPWR_OTG_DISABLE (0x1 << 4) -#define PHYPWR_ANALOG_POWERDOWN (0x1 << 3) -#define PHYPWR_FORCE_SUSPEND (0x1 << 1) -/* For Exynos4 */ -#define PHYPWR_NORMAL_MASK_PHY0 (0x39 << 0) -#define PHYPWR_SLEEP_PHY0 (0x1 << 5) - -#define SAMSUNG_PHYCLK (0x04) - -#define PHYCLK_MODE_USB11 (0x1 << 6) -#define PHYCLK_EXT_OSC (0x1 << 5) -#define PHYCLK_COMMON_ON_N (0x1 << 4) -#define PHYCLK_ID_PULL (0x1 << 2) -#define PHYCLK_CLKSEL_MASK (0x3 << 0) -#define PHYCLK_CLKSEL_48M (0x0 << 0) -#define PHYCLK_CLKSEL_12M (0x2 << 0) -#define PHYCLK_CLKSEL_24M (0x3 << 0) - -#define SAMSUNG_RSTCON (0x08) - -#define RSTCON_PHYLINK_SWRST (0x1 << 2) -#define RSTCON_HLINK_SWRST (0x1 << 1) -#define RSTCON_SWRST (0x1 << 0) - -/* EXYNOS5 */ -#define EXYNOS5_PHY_HOST_CTRL0 (0x00) - -#define HOST_CTRL0_PHYSWRSTALL (0x1 << 31) - -#define HOST_CTRL0_REFCLKSEL_MASK (0x3 << 19) -#define HOST_CTRL0_REFCLKSEL_XTAL (0x0 << 19) -#define HOST_CTRL0_REFCLKSEL_EXTL (0x1 << 19) -#define HOST_CTRL0_REFCLKSEL_CLKCORE (0x2 << 19) - -#define HOST_CTRL0_FSEL_MASK (0x7 << 16) -#define HOST_CTRL0_FSEL(_x) ((_x) << 16) - -#define FSEL_CLKSEL_50M (0x7) -#define FSEL_CLKSEL_24M (0x5) -#define FSEL_CLKSEL_20M (0x4) -#define FSEL_CLKSEL_19200K (0x3) -#define FSEL_CLKSEL_12M (0x2) -#define FSEL_CLKSEL_10M (0x1) -#define FSEL_CLKSEL_9600K (0x0) - -#define HOST_CTRL0_TESTBURNIN (0x1 << 11) -#define HOST_CTRL0_RETENABLE (0x1 << 10) -#define HOST_CTRL0_COMMONON_N (0x1 << 9) -#define HOST_CTRL0_SIDDQ (0x1 << 6) -#define HOST_CTRL0_FORCESLEEP (0x1 << 5) -#define HOST_CTRL0_FORCESUSPEND (0x1 << 4) -#define HOST_CTRL0_WORDINTERFACE (0x1 << 3) -#define HOST_CTRL0_UTMISWRST (0x1 << 2) -#define HOST_CTRL0_LINKSWRST (0x1 << 1) -#define HOST_CTRL0_PHYSWRST (0x1 << 0) - -#define EXYNOS5_PHY_HOST_TUNE0 (0x04) - -#define EXYNOS5_PHY_HSIC_CTRL1 (0x10) - -#define EXYNOS5_PHY_HSIC_TUNE1 (0x14) - -#define EXYNOS5_PHY_HSIC_CTRL2 (0x20) - -#define EXYNOS5_PHY_HSIC_TUNE2 (0x24) - -#define HSIC_CTRL_REFCLKSEL_MASK (0x3 << 23) -#define HSIC_CTRL_REFCLKSEL (0x2 << 23) - -#define HSIC_CTRL_REFCLKDIV_MASK (0x7f << 16) -#define HSIC_CTRL_REFCLKDIV(_x) ((_x) << 16) -#define HSIC_CTRL_REFCLKDIV_12 (0x24 << 16) -#define HSIC_CTRL_REFCLKDIV_15 (0x1c << 16) -#define HSIC_CTRL_REFCLKDIV_16 (0x1a << 16) -#define HSIC_CTRL_REFCLKDIV_19_2 (0x15 << 16) -#define HSIC_CTRL_REFCLKDIV_20 (0x14 << 16) - -#define HSIC_CTRL_SIDDQ (0x1 << 6) -#define HSIC_CTRL_FORCESLEEP (0x1 << 5) -#define HSIC_CTRL_FORCESUSPEND (0x1 << 4) -#define HSIC_CTRL_WORDINTERFACE (0x1 << 3) -#define HSIC_CTRL_UTMISWRST (0x1 << 2) -#define HSIC_CTRL_PHYSWRST (0x1 << 0) - -#define EXYNOS5_PHY_HOST_EHCICTRL (0x30) - -#define HOST_EHCICTRL_ENAINCRXALIGN (0x1 << 29) -#define HOST_EHCICTRL_ENAINCR4 (0x1 << 28) -#define HOST_EHCICTRL_ENAINCR8 (0x1 << 27) -#define HOST_EHCICTRL_ENAINCR16 (0x1 << 26) - -#define EXYNOS5_PHY_HOST_OHCICTRL (0x34) - -#define HOST_OHCICTRL_SUSPLGCY (0x1 << 3) -#define HOST_OHCICTRL_APPSTARTCLK (0x1 << 2) -#define HOST_OHCICTRL_CNTSEL (0x1 << 1) -#define HOST_OHCICTRL_CLKCKTRST (0x1 << 0) - -#define EXYNOS5_PHY_OTG_SYS (0x38) - -#define OTG_SYS_PHYLINK_SWRESET (0x1 << 14) -#define OTG_SYS_LINKSWRST_UOTG (0x1 << 13) -#define OTG_SYS_PHY0_SWRST (0x1 << 12) - -#define OTG_SYS_REFCLKSEL_MASK (0x3 << 9) -#define OTG_SYS_REFCLKSEL_XTAL (0x0 << 9) -#define OTG_SYS_REFCLKSEL_EXTL (0x1 << 9) -#define OTG_SYS_REFCLKSEL_CLKCORE (0x2 << 9) - -#define OTG_SYS_IDPULLUP_UOTG (0x1 << 8) -#define OTG_SYS_COMMON_ON (0x1 << 7) - -#define OTG_SYS_FSEL_MASK (0x7 << 4) -#define OTG_SYS_FSEL(_x) ((_x) << 4) - -#define OTG_SYS_FORCESLEEP (0x1 << 3) -#define OTG_SYS_OTGDISABLE (0x1 << 2) -#define OTG_SYS_SIDDQ_UOTG (0x1 << 1) -#define OTG_SYS_FORCESUSPEND (0x1 << 0) - -#define EXYNOS5_PHY_OTG_TUNE (0x40) - -#ifndef MHZ -#define MHZ (1000*1000) -#endif - -#ifndef KHZ -#define KHZ (1000) -#endif - -#define EXYNOS_USBHOST_PHY_CTRL_OFFSET (0x4) -#define S3C64XX_USBPHY_ENABLE (0x1 << 16) -#define EXYNOS_USBPHY_ENABLE (0x1 << 0) -#define EXYNOS_USB20PHY_CFG_HOST_LINK (0x1 << 0) - -enum samsung_cpu_type { - TYPE_S3C64XX, - TYPE_EXYNOS4210, - TYPE_EXYNOS5250, -}; - -/* - * struct samsung_usbphy_drvdata - driver data for various SoC variants - * @cpu_type: machine identifier - * @devphy_en_mask: device phy enable mask for PHY CONTROL register - * @hostphy_en_mask: host phy enable mask for PHY CONTROL register - * @devphy_reg_offset: offset to DEVICE PHY CONTROL register from - * mapped address of system controller. - * @hostphy_reg_offset: offset to HOST PHY CONTROL register from - * mapped address of system controller. - * - * Here we have a separate mask for device type phy. - * Having different masks for host and device type phy helps - * in setting independent masks in case of SoCs like S5PV210, - * in which PHY0 and PHY1 enable bits belong to same register - * placed at position 0 and 1 respectively. - * Although for newer SoCs like exynos these bits belong to - * different registers altogether placed at position 0. - */ -struct samsung_usbphy_drvdata { - int cpu_type; - int devphy_en_mask; - int hostphy_en_mask; - u32 devphy_reg_offset; - u32 hostphy_reg_offset; -}; - -/* - * struct samsung_usbphy - transceiver driver state - * @phy: transceiver structure - * @plat: platform data - * @dev: The parent device supplied to the probe function - * @clk: usb phy clock - * @regs: usb phy controller registers memory base - * @pmuregs: USB device PHY_CONTROL register memory base - * @sysreg: USB2.0 PHY_CFG register memory base - * @ref_clk_freq: reference clock frequency selection - * @drv_data: driver data available for different SoCs - * @phy_type: Samsung SoCs specific phy types: #HOST - * #DEVICE - * @phy_usage: usage count for phy - * @lock: lock for phy operations - */ -struct samsung_usbphy { - struct usb_phy phy; - struct samsung_usbphy_data *plat; - struct device *dev; - struct clk *clk; - void __iomem *regs; - void __iomem *pmuregs; - void __iomem *sysreg; - int ref_clk_freq; - const struct samsung_usbphy_drvdata *drv_data; - enum samsung_usb_phy_type phy_type; - atomic_t phy_usage; - spinlock_t lock; -}; - -#define phy_to_sphy(x) container_of((x), struct samsung_usbphy, phy) - -int samsung_usbphy_set_host(struct usb_otg *otg, struct usb_bus *host) -{ - if (!otg) - return -ENODEV; - - if (!otg->host) - otg->host = host; - - return 0; -} - -static int samsung_usbphy_parse_dt(struct samsung_usbphy *sphy) -{ - struct device_node *usbphy_sys; - - /* Getting node for system controller interface for usb-phy */ - usbphy_sys = of_get_child_by_name(sphy->dev->of_node, "usbphy-sys"); - if (!usbphy_sys) { - dev_err(sphy->dev, "No sys-controller interface for usb-phy\n"); - return -ENODEV; - } - - sphy->pmuregs = of_iomap(usbphy_sys, 0); - - if (sphy->pmuregs == NULL) { - dev_err(sphy->dev, "Can't get usb-phy pmu control register\n"); - goto err0; - } - - sphy->sysreg = of_iomap(usbphy_sys, 1); - - /* - * Not returning error code here, since this situation is not fatal. - * Few SoCs may not have this switch available - */ - if (sphy->sysreg == NULL) - dev_warn(sphy->dev, "Can't get usb-phy sysreg cfg register\n"); - - of_node_put(usbphy_sys); - - return 0; - -err0: - of_node_put(usbphy_sys); - return -ENXIO; -} - -/* - * Set isolation here for phy. - * Here 'on = true' would mean USB PHY block is isolated, hence - * de-activated and vice-versa. - */ -static void samsung_usbphy_set_isolation(struct samsung_usbphy *sphy, bool on) -{ - void __iomem *reg = NULL; - u32 reg_val; - u32 en_mask = 0; - - if (!sphy->pmuregs) { - dev_warn(sphy->dev, "Can't set pmu isolation\n"); - return; - } - - switch (sphy->drv_data->cpu_type) { - case TYPE_S3C64XX: - /* - * Do nothing: We will add here once S3C64xx goes for DT support - */ - break; - case TYPE_EXYNOS4210: - /* - * Fall through since exynos4210 and exynos5250 have similar - * register architecture: two separate registers for host and - * device phy control with enable bit at position 0. - */ - case TYPE_EXYNOS5250: - if (sphy->phy_type == USB_PHY_TYPE_DEVICE) { - reg = sphy->pmuregs + - sphy->drv_data->devphy_reg_offset; - en_mask = sphy->drv_data->devphy_en_mask; - } else if (sphy->phy_type == USB_PHY_TYPE_HOST) { - reg = sphy->pmuregs + - sphy->drv_data->hostphy_reg_offset; - en_mask = sphy->drv_data->hostphy_en_mask; - } - break; - default: - dev_err(sphy->dev, "Invalid SoC type\n"); - return; - } - - reg_val = readl(reg); - - if (on) - reg_val &= ~en_mask; - else - reg_val |= en_mask; - - writel(reg_val, reg); -} - -/* - * Configure the mode of working of usb-phy here: HOST/DEVICE. - */ -static void samsung_usbphy_cfg_sel(struct samsung_usbphy *sphy) -{ - u32 reg; - - if (!sphy->sysreg) { - dev_warn(sphy->dev, "Can't configure specified phy mode\n"); - return; - } - - reg = readl(sphy->sysreg); - - if (sphy->phy_type == USB_PHY_TYPE_DEVICE) - reg &= ~EXYNOS_USB20PHY_CFG_HOST_LINK; - else if (sphy->phy_type == USB_PHY_TYPE_HOST) - reg |= EXYNOS_USB20PHY_CFG_HOST_LINK; - - writel(reg, sphy->sysreg); -} - -/* - * PHYs are different for USB Device and USB Host. - * This make sure that correct PHY type is selected before - * any operation on PHY. - */ -static int samsung_usbphy_set_type(struct usb_phy *phy, - enum samsung_usb_phy_type phy_type) -{ - struct samsung_usbphy *sphy = phy_to_sphy(phy); - - sphy->phy_type = phy_type; - - return 0; -} - -/* - * Returns reference clock frequency selection value - */ -static int samsung_usbphy_get_refclk_freq(struct samsung_usbphy *sphy) -{ - struct clk *ref_clk; - int refclk_freq = 0; - - /* - * In exynos5250 USB host and device PHY use - * external crystal clock XXTI - */ - if (sphy->drv_data->cpu_type == TYPE_EXYNOS5250) - ref_clk = clk_get(sphy->dev, "ext_xtal"); - else - ref_clk = clk_get(sphy->dev, "xusbxti"); - if (IS_ERR(ref_clk)) { - dev_err(sphy->dev, "Failed to get reference clock\n"); - return PTR_ERR(ref_clk); - } - - if (sphy->drv_data->cpu_type == TYPE_EXYNOS5250) { - /* set clock frequency for PLL */ - switch (clk_get_rate(ref_clk)) { - case 9600 * KHZ: - refclk_freq = FSEL_CLKSEL_9600K; - break; - case 10 * MHZ: - refclk_freq = FSEL_CLKSEL_10M; - break; - case 12 * MHZ: - refclk_freq = FSEL_CLKSEL_12M; - break; - case 19200 * KHZ: - refclk_freq = FSEL_CLKSEL_19200K; - break; - case 20 * MHZ: - refclk_freq = FSEL_CLKSEL_20M; - break; - case 50 * MHZ: - refclk_freq = FSEL_CLKSEL_50M; - break; - case 24 * MHZ: - default: - /* default reference clock */ - refclk_freq = FSEL_CLKSEL_24M; - break; - } - } else { - switch (clk_get_rate(ref_clk)) { - case 12 * MHZ: - refclk_freq = PHYCLK_CLKSEL_12M; - break; - case 24 * MHZ: - refclk_freq = PHYCLK_CLKSEL_24M; - break; - case 48 * MHZ: - refclk_freq = PHYCLK_CLKSEL_48M; - break; - default: - if (sphy->drv_data->cpu_type == TYPE_S3C64XX) - refclk_freq = PHYCLK_CLKSEL_48M; - else - refclk_freq = PHYCLK_CLKSEL_24M; - break; - } - } - clk_put(ref_clk); - - return refclk_freq; -} - -static bool exynos5_phyhost_is_on(void *regs) -{ - u32 reg; - - reg = readl(regs + EXYNOS5_PHY_HOST_CTRL0); - - return !(reg & HOST_CTRL0_SIDDQ); -} - -static void samsung_exynos5_usbphy_enable(struct samsung_usbphy *sphy) -{ - void __iomem *regs = sphy->regs; - u32 phyclk = sphy->ref_clk_freq; - u32 phyhost; - u32 phyotg; - u32 phyhsic; - u32 ehcictrl; - u32 ohcictrl; - - /* - * phy_usage helps in keeping usage count for phy - * so that the first consumer enabling the phy is also - * the last consumer to disable it. - */ - - atomic_inc(&sphy->phy_usage); - - if (exynos5_phyhost_is_on(regs)) { - dev_info(sphy->dev, "Already power on PHY\n"); - return; - } - - /* Host configuration */ - phyhost = readl(regs + EXYNOS5_PHY_HOST_CTRL0); - - /* phy reference clock configuration */ - phyhost &= ~HOST_CTRL0_FSEL_MASK; - phyhost |= HOST_CTRL0_FSEL(phyclk); - - /* host phy reset */ - phyhost &= ~(HOST_CTRL0_PHYSWRST | - HOST_CTRL0_PHYSWRSTALL | - HOST_CTRL0_SIDDQ | - /* Enable normal mode of operation */ - HOST_CTRL0_FORCESUSPEND | - HOST_CTRL0_FORCESLEEP); - - /* Link reset */ - phyhost |= (HOST_CTRL0_LINKSWRST | - HOST_CTRL0_UTMISWRST | - /* COMMON Block configuration during suspend */ - HOST_CTRL0_COMMONON_N); - writel(phyhost, regs + EXYNOS5_PHY_HOST_CTRL0); - udelay(10); - phyhost &= ~(HOST_CTRL0_LINKSWRST | - HOST_CTRL0_UTMISWRST); - writel(phyhost, regs + EXYNOS5_PHY_HOST_CTRL0); - - /* OTG configuration */ - phyotg = readl(regs + EXYNOS5_PHY_OTG_SYS); - - /* phy reference clock configuration */ - phyotg &= ~OTG_SYS_FSEL_MASK; - phyotg |= OTG_SYS_FSEL(phyclk); - - /* Enable normal mode of operation */ - phyotg &= ~(OTG_SYS_FORCESUSPEND | - OTG_SYS_SIDDQ_UOTG | - OTG_SYS_FORCESLEEP | - OTG_SYS_REFCLKSEL_MASK | - /* COMMON Block configuration during suspend */ - OTG_SYS_COMMON_ON); - - /* OTG phy & link reset */ - phyotg |= (OTG_SYS_PHY0_SWRST | - OTG_SYS_LINKSWRST_UOTG | - OTG_SYS_PHYLINK_SWRESET | - OTG_SYS_OTGDISABLE | - /* Set phy refclk */ - OTG_SYS_REFCLKSEL_CLKCORE); - - writel(phyotg, regs + EXYNOS5_PHY_OTG_SYS); - udelay(10); - phyotg &= ~(OTG_SYS_PHY0_SWRST | - OTG_SYS_LINKSWRST_UOTG | - OTG_SYS_PHYLINK_SWRESET); - writel(phyotg, regs + EXYNOS5_PHY_OTG_SYS); - - /* HSIC phy configuration */ - phyhsic = (HSIC_CTRL_REFCLKDIV_12 | - HSIC_CTRL_REFCLKSEL | - HSIC_CTRL_PHYSWRST); - writel(phyhsic, regs + EXYNOS5_PHY_HSIC_CTRL1); - writel(phyhsic, regs + EXYNOS5_PHY_HSIC_CTRL2); - udelay(10); - phyhsic &= ~HSIC_CTRL_PHYSWRST; - writel(phyhsic, regs + EXYNOS5_PHY_HSIC_CTRL1); - writel(phyhsic, regs + EXYNOS5_PHY_HSIC_CTRL2); - - udelay(80); - - /* enable EHCI DMA burst */ - ehcictrl = readl(regs + EXYNOS5_PHY_HOST_EHCICTRL); - ehcictrl |= (HOST_EHCICTRL_ENAINCRXALIGN | - HOST_EHCICTRL_ENAINCR4 | - HOST_EHCICTRL_ENAINCR8 | - HOST_EHCICTRL_ENAINCR16); - writel(ehcictrl, regs + EXYNOS5_PHY_HOST_EHCICTRL); - - /* set ohci_suspend_on_n */ - ohcictrl = readl(regs + EXYNOS5_PHY_HOST_OHCICTRL); - ohcictrl |= HOST_OHCICTRL_SUSPLGCY; - writel(ohcictrl, regs + EXYNOS5_PHY_HOST_OHCICTRL); -} - -static void samsung_usbphy_enable(struct samsung_usbphy *sphy) -{ - void __iomem *regs = sphy->regs; - u32 phypwr; - u32 phyclk; - u32 rstcon; - - /* set clock frequency for PLL */ - phyclk = sphy->ref_clk_freq; - phypwr = readl(regs + SAMSUNG_PHYPWR); - rstcon = readl(regs + SAMSUNG_RSTCON); - - switch (sphy->drv_data->cpu_type) { - case TYPE_S3C64XX: - phyclk &= ~PHYCLK_COMMON_ON_N; - phypwr &= ~PHYPWR_NORMAL_MASK; - rstcon |= RSTCON_SWRST; - break; - case TYPE_EXYNOS4210: - phypwr &= ~PHYPWR_NORMAL_MASK_PHY0; - rstcon |= RSTCON_SWRST; - default: - break; - } - - writel(phyclk, regs + SAMSUNG_PHYCLK); - /* Configure PHY0 for normal operation*/ - writel(phypwr, regs + SAMSUNG_PHYPWR); - /* reset all ports of PHY and Link */ - writel(rstcon, regs + SAMSUNG_RSTCON); - udelay(10); - rstcon &= ~RSTCON_SWRST; - writel(rstcon, regs + SAMSUNG_RSTCON); -} - -static void samsung_exynos5_usbphy_disable(struct samsung_usbphy *sphy) -{ - void __iomem *regs = sphy->regs; - u32 phyhost; - u32 phyotg; - u32 phyhsic; - - if (atomic_dec_return(&sphy->phy_usage) > 0) { - dev_info(sphy->dev, "still being used\n"); - return; - } - - phyhsic = (HSIC_CTRL_REFCLKDIV_12 | - HSIC_CTRL_REFCLKSEL | - HSIC_CTRL_SIDDQ | - HSIC_CTRL_FORCESLEEP | - HSIC_CTRL_FORCESUSPEND); - writel(phyhsic, regs + EXYNOS5_PHY_HSIC_CTRL1); - writel(phyhsic, regs + EXYNOS5_PHY_HSIC_CTRL2); - - phyhost = readl(regs + EXYNOS5_PHY_HOST_CTRL0); - phyhost |= (HOST_CTRL0_SIDDQ | - HOST_CTRL0_FORCESUSPEND | - HOST_CTRL0_FORCESLEEP | - HOST_CTRL0_PHYSWRST | - HOST_CTRL0_PHYSWRSTALL); - writel(phyhost, regs + EXYNOS5_PHY_HOST_CTRL0); - - phyotg = readl(regs + EXYNOS5_PHY_OTG_SYS); - phyotg |= (OTG_SYS_FORCESUSPEND | - OTG_SYS_SIDDQ_UOTG | - OTG_SYS_FORCESLEEP); - writel(phyotg, regs + EXYNOS5_PHY_OTG_SYS); -} - -static void samsung_usbphy_disable(struct samsung_usbphy *sphy) -{ - void __iomem *regs = sphy->regs; - u32 phypwr; - - phypwr = readl(regs + SAMSUNG_PHYPWR); - - switch (sphy->drv_data->cpu_type) { - case TYPE_S3C64XX: - phypwr |= PHYPWR_NORMAL_MASK; - break; - case TYPE_EXYNOS4210: - phypwr |= PHYPWR_NORMAL_MASK_PHY0; - default: - break; - } - - /* Disable analog and otg block power */ - writel(phypwr, regs + SAMSUNG_PHYPWR); -} - -/* - * The function passed to the usb driver for phy initialization - */ -static int samsung_usbphy_init(struct usb_phy *phy) -{ - struct samsung_usbphy *sphy; - struct usb_bus *host = NULL; - unsigned long flags; - int ret = 0; - - sphy = phy_to_sphy(phy); - - host = phy->otg->host; - - /* Enable the phy clock */ - ret = clk_prepare_enable(sphy->clk); - if (ret) { - dev_err(sphy->dev, "%s: clk_prepare_enable failed\n", __func__); - return ret; - } - - spin_lock_irqsave(&sphy->lock, flags); - - if (host) { - /* setting default phy-type for USB 2.0 */ - if (!strstr(dev_name(host->controller), "ehci") || - !strstr(dev_name(host->controller), "ohci")) - samsung_usbphy_set_type(&sphy->phy, USB_PHY_TYPE_HOST); - } else { - samsung_usbphy_set_type(&sphy->phy, USB_PHY_TYPE_DEVICE); - } - - /* Disable phy isolation */ - if (sphy->plat && sphy->plat->pmu_isolation) - sphy->plat->pmu_isolation(false); - else - samsung_usbphy_set_isolation(sphy, false); - - /* Selecting Host/OTG mode; After reset USB2.0PHY_CFG: HOST */ - samsung_usbphy_cfg_sel(sphy); - - /* Initialize usb phy registers */ - if (sphy->drv_data->cpu_type == TYPE_EXYNOS5250) - samsung_exynos5_usbphy_enable(sphy); - else - samsung_usbphy_enable(sphy); - - spin_unlock_irqrestore(&sphy->lock, flags); - - /* Disable the phy clock */ - clk_disable_unprepare(sphy->clk); - - return ret; -} - -/* - * The function passed to the usb driver for phy shutdown - */ -static void samsung_usbphy_shutdown(struct usb_phy *phy) -{ - struct samsung_usbphy *sphy; - struct usb_bus *host = NULL; - unsigned long flags; - - sphy = phy_to_sphy(phy); - - host = phy->otg->host; - - if (clk_prepare_enable(sphy->clk)) { - dev_err(sphy->dev, "%s: clk_prepare_enable failed\n", __func__); - return; - } - - spin_lock_irqsave(&sphy->lock, flags); - - if (host) { - /* setting default phy-type for USB 2.0 */ - if (!strstr(dev_name(host->controller), "ehci") || - !strstr(dev_name(host->controller), "ohci")) - samsung_usbphy_set_type(&sphy->phy, USB_PHY_TYPE_HOST); - } else { - samsung_usbphy_set_type(&sphy->phy, USB_PHY_TYPE_DEVICE); - } - - /* De-initialize usb phy registers */ - if (sphy->drv_data->cpu_type == TYPE_EXYNOS5250) - samsung_exynos5_usbphy_disable(sphy); - else - samsung_usbphy_disable(sphy); - - /* Enable phy isolation */ - if (sphy->plat && sphy->plat->pmu_isolation) - sphy->plat->pmu_isolation(true); - else - samsung_usbphy_set_isolation(sphy, true); - - spin_unlock_irqrestore(&sphy->lock, flags); - - clk_disable_unprepare(sphy->clk); -} - -static const struct of_device_id samsung_usbphy_dt_match[]; - -static inline const struct samsung_usbphy_drvdata -*samsung_usbphy_get_driver_data(struct platform_device *pdev) -{ - if (pdev->dev.of_node) { - const struct of_device_id *match; - match = of_match_node(samsung_usbphy_dt_match, - pdev->dev.of_node); - return match->data; - } - - return (struct samsung_usbphy_drvdata *) - platform_get_device_id(pdev)->driver_data; -} - -static int samsung_usbphy_probe(struct platform_device *pdev) -{ - struct samsung_usbphy *sphy; - struct usb_otg *otg; - struct samsung_usbphy_data *pdata = pdev->dev.platform_data; - const struct samsung_usbphy_drvdata *drv_data; - struct device *dev = &pdev->dev; - struct resource *phy_mem; - void __iomem *phy_base; - struct clk *clk; - int ret; - - phy_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!phy_mem) { - dev_err(dev, "%s: missing mem resource\n", __func__); - return -ENODEV; - } - - phy_base = devm_ioremap_resource(dev, phy_mem); - if (IS_ERR(phy_base)) - return PTR_ERR(phy_base); - - sphy = devm_kzalloc(dev, sizeof(*sphy), GFP_KERNEL); - if (!sphy) - return -ENOMEM; - - otg = devm_kzalloc(dev, sizeof(*otg), GFP_KERNEL); - if (!otg) - return -ENOMEM; - - drv_data = samsung_usbphy_get_driver_data(pdev); - - if (drv_data->cpu_type == TYPE_EXYNOS5250) - clk = devm_clk_get(dev, "usbhost"); - else - clk = devm_clk_get(dev, "otg"); - - if (IS_ERR(clk)) { - dev_err(dev, "Failed to get otg clock\n"); - return PTR_ERR(clk); - } - - sphy->dev = dev; - - if (dev->of_node) { - ret = samsung_usbphy_parse_dt(sphy); - if (ret < 0) - return ret; - } else { - if (!pdata) { - dev_err(dev, "no platform data specified\n"); - return -EINVAL; - } - } - - sphy->plat = pdata; - sphy->regs = phy_base; - sphy->clk = clk; - sphy->drv_data = drv_data; - sphy->phy.dev = sphy->dev; - sphy->phy.label = "samsung-usbphy"; - sphy->phy.init = samsung_usbphy_init; - sphy->phy.shutdown = samsung_usbphy_shutdown; - sphy->ref_clk_freq = samsung_usbphy_get_refclk_freq(sphy); - - sphy->phy.otg = otg; - sphy->phy.otg->phy = &sphy->phy; - sphy->phy.otg->set_host = samsung_usbphy_set_host; - - spin_lock_init(&sphy->lock); - - platform_set_drvdata(pdev, sphy); - - return usb_add_phy(&sphy->phy, USB_PHY_TYPE_USB2); -} - -static int samsung_usbphy_remove(struct platform_device *pdev) -{ - struct samsung_usbphy *sphy = platform_get_drvdata(pdev); - - usb_remove_phy(&sphy->phy); - - if (sphy->pmuregs) - iounmap(sphy->pmuregs); - if (sphy->sysreg) - iounmap(sphy->sysreg); - - return 0; -} - -static const struct samsung_usbphy_drvdata usbphy_s3c64xx = { - .cpu_type = TYPE_S3C64XX, - .devphy_en_mask = S3C64XX_USBPHY_ENABLE, -}; - -static const struct samsung_usbphy_drvdata usbphy_exynos4 = { - .cpu_type = TYPE_EXYNOS4210, - .devphy_en_mask = EXYNOS_USBPHY_ENABLE, - .hostphy_en_mask = EXYNOS_USBPHY_ENABLE, -}; - -static struct samsung_usbphy_drvdata usbphy_exynos5 = { - .cpu_type = TYPE_EXYNOS5250, - .hostphy_en_mask = EXYNOS_USBPHY_ENABLE, - .hostphy_reg_offset = EXYNOS_USBHOST_PHY_CTRL_OFFSET, -}; - -#ifdef CONFIG_OF -static const struct of_device_id samsung_usbphy_dt_match[] = { - { - .compatible = "samsung,s3c64xx-usbphy", - .data = &usbphy_s3c64xx, - }, { - .compatible = "samsung,exynos4210-usbphy", - .data = &usbphy_exynos4, - }, { - .compatible = "samsung,exynos5250-usbphy", - .data = &usbphy_exynos5 - }, - {}, -}; -MODULE_DEVICE_TABLE(of, samsung_usbphy_dt_match); -#endif - -static struct platform_device_id samsung_usbphy_driver_ids[] = { - { - .name = "s3c64xx-usbphy", - .driver_data = (unsigned long)&usbphy_s3c64xx, - }, { - .name = "exynos4210-usbphy", - .driver_data = (unsigned long)&usbphy_exynos4, - }, { - .name = "exynos5250-usbphy", - .driver_data = (unsigned long)&usbphy_exynos5, - }, - {}, -}; - -MODULE_DEVICE_TABLE(platform, samsung_usbphy_driver_ids); - -static struct platform_driver samsung_usbphy_driver = { - .probe = samsung_usbphy_probe, - .remove = samsung_usbphy_remove, - .id_table = samsung_usbphy_driver_ids, - .driver = { - .name = "samsung-usbphy", - .owner = THIS_MODULE, - .of_match_table = of_match_ptr(samsung_usbphy_dt_match), - }, -}; - -module_platform_driver(samsung_usbphy_driver); - -MODULE_DESCRIPTION("Samsung USB phy controller"); -MODULE_AUTHOR("Praveen Paneri <p.paneri@samsung.com>"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:samsung-usbphy"); diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c index 9538f0feafe2..45b94019aec8 100644 --- a/drivers/usb/renesas_usbhs/fifo.c +++ b/drivers/usb/renesas_usbhs/fifo.c @@ -32,7 +32,6 @@ */ void usbhs_pkt_init(struct usbhs_pkt *pkt) { - pkt->dma = DMA_ADDR_INVALID; INIT_LIST_HEAD(&pkt->node); } diff --git a/drivers/usb/renesas_usbhs/fifo.h b/drivers/usb/renesas_usbhs/fifo.h index c31731a843d1..a168a1760fce 100644 --- a/drivers/usb/renesas_usbhs/fifo.h +++ b/drivers/usb/renesas_usbhs/fifo.h @@ -23,8 +23,6 @@ #include <asm/dma.h> #include "pipe.h" -#define DMA_ADDR_INVALID (~(dma_addr_t)0) - struct usbhs_fifo { char *name; u32 port; /* xFIFO */ diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c index 78fca978b2d0..ed4949faa70d 100644 --- a/drivers/usb/renesas_usbhs/mod_gadget.c +++ b/drivers/usb/renesas_usbhs/mod_gadget.c @@ -230,7 +230,7 @@ static int usbhsg_recip_handler_std_clear_endpoint(struct usbhs_priv *priv, return 0; } -struct usbhsg_recip_handle req_clear_feature = { +static struct usbhsg_recip_handle req_clear_feature = { .name = "clear feature", .device = usbhsg_recip_handler_std_control_done, .interface = usbhsg_recip_handler_std_control_done, @@ -271,7 +271,7 @@ static int usbhsg_recip_handler_std_set_endpoint(struct usbhs_priv *priv, return 0; } -struct usbhsg_recip_handle req_set_feature = { +static struct usbhsg_recip_handle req_set_feature = { .name = "set feature", .device = usbhsg_recip_handler_std_set_device, .interface = usbhsg_recip_handler_std_control_done, @@ -372,7 +372,7 @@ static int usbhsg_recip_handler_std_get_endpoint(struct usbhs_priv *priv, return 0; } -struct usbhsg_recip_handle req_get_status = { +static struct usbhsg_recip_handle req_get_status = { .name = "get status", .device = usbhsg_recip_handler_std_get_device, .interface = usbhsg_recip_handler_std_get_interface, @@ -845,7 +845,6 @@ static int usbhsg_gadget_start(struct usb_gadget *gadget, /* first hook up the driver ... */ gpriv->driver = driver; - gpriv->gadget.dev.driver = &driver->driver; return usbhsg_try_start(priv, USBHSG_STATUS_REGISTERD); } @@ -861,7 +860,6 @@ static int usbhsg_gadget_stop(struct usb_gadget *gadget, return -EINVAL; usbhsg_try_stop(priv, USBHSG_STATUS_REGISTERD); - gpriv->gadget.dev.driver = NULL; gpriv->driver = NULL; return 0; @@ -925,11 +923,6 @@ static int usbhsg_stop(struct usbhs_priv *priv) return usbhsg_try_stop(priv, USBHSG_STATUS_STARTED); } -static void usbhs_mod_gadget_release(struct device *pdev) -{ - /* do nothing */ -} - int usbhs_mod_gadget_probe(struct usbhs_priv *priv) { struct usbhsg_gpriv *gpriv; @@ -976,15 +969,10 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv) /* * init gadget */ - dev_set_name(&gpriv->gadget.dev, "gadget"); gpriv->gadget.dev.parent = dev; - gpriv->gadget.dev.release = usbhs_mod_gadget_release; gpriv->gadget.name = "renesas_usbhs_udc"; gpriv->gadget.ops = &usbhsg_gadget_ops; gpriv->gadget.max_speed = USB_SPEED_HIGH; - ret = device_register(&gpriv->gadget.dev); - if (ret < 0) - goto err_add_udc; INIT_LIST_HEAD(&gpriv->gadget.ep_list); @@ -1014,15 +1002,13 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv) ret = usb_add_gadget_udc(dev, &gpriv->gadget); if (ret) - goto err_register; + goto err_add_udc; dev_info(dev, "gadget probed\n"); return 0; -err_register: - device_unregister(&gpriv->gadget.dev); err_add_udc: kfree(gpriv->uep); @@ -1038,8 +1024,6 @@ void usbhs_mod_gadget_remove(struct usbhs_priv *priv) usb_del_gadget_udc(&gpriv->gadget); - device_unregister(&gpriv->gadget.dev); - kfree(gpriv->uep); kfree(gpriv); } diff --git a/drivers/usb/usb-common.c b/drivers/usb/usb-common.c index d29503e954ab..0db0a919d72b 100644 --- a/drivers/usb/usb-common.c +++ b/drivers/usb/usb-common.c @@ -14,6 +14,32 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/usb/ch9.h> +#include <linux/usb/otg.h> + +const char *usb_otg_state_string(enum usb_otg_state state) +{ + static const char *const names[] = { + [OTG_STATE_A_IDLE] = "a_idle", + [OTG_STATE_A_WAIT_VRISE] = "a_wait_vrise", + [OTG_STATE_A_WAIT_BCON] = "a_wait_bcon", + [OTG_STATE_A_HOST] = "a_host", + [OTG_STATE_A_SUSPEND] = "a_suspend", + [OTG_STATE_A_PERIPHERAL] = "a_peripheral", + [OTG_STATE_A_WAIT_VFALL] = "a_wait_vfall", + [OTG_STATE_A_VBUS_ERR] = "a_vbus_err", + [OTG_STATE_B_IDLE] = "b_idle", + [OTG_STATE_B_SRP_INIT] = "b_srp_init", + [OTG_STATE_B_PERIPHERAL] = "b_peripheral", + [OTG_STATE_B_WAIT_ACON] = "b_wait_acon", + [OTG_STATE_B_HOST] = "b_host", + }; + + if (state < 0 || state >= ARRAY_SIZE(names)) + return "UNDEFINED"; + + return names[state]; +} +EXPORT_SYMBOL_GPL(usb_otg_state_string); const char *usb_speed_string(enum usb_device_speed speed) { @@ -32,4 +58,25 @@ const char *usb_speed_string(enum usb_device_speed speed) } EXPORT_SYMBOL_GPL(usb_speed_string); +const char *usb_state_string(enum usb_device_state state) +{ + static const char *const names[] = { + [USB_STATE_NOTATTACHED] = "not attached", + [USB_STATE_ATTACHED] = "attached", + [USB_STATE_POWERED] = "powered", + [USB_STATE_RECONNECTING] = "reconnecting", + [USB_STATE_UNAUTHENTICATED] = "unauthenticated", + [USB_STATE_DEFAULT] = "default", + [USB_STATE_ADDRESS] = "addresssed", + [USB_STATE_CONFIGURED] = "configured", + [USB_STATE_SUSPENDED] = "suspended", + }; + + if (state < 0 || state >= ARRAY_SIZE(names)) + return "UNKNOWN"; + + return names[state]; +} +EXPORT_SYMBOL_GPL(usb_state_string); + MODULE_LICENSE("GPL"); |
