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author | Andrzej Pietrasiewicz <andrzej.p@samsung.com> | 2014-07-15 13:09:45 +0200 |
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committer | Felipe Balbi <balbi@ti.com> | 2014-07-16 12:15:28 -0500 |
commit | 90fccb529d241b55829701cfb9eb3086570f38b8 (patch) | |
tree | 4e788b13b8c35bc5c9d24597479cda82d503bf7c /drivers/usb/gadget/net2280.h | |
parent | 8443f2d2b7782fef35fe579bf1eb612c24951486 (diff) | |
download | talos-obmc-linux-90fccb529d241b55829701cfb9eb3086570f38b8.tar.gz talos-obmc-linux-90fccb529d241b55829701cfb9eb3086570f38b8.zip |
usb: gadget: Gadget directory cleanup - group UDC drivers
The drivers/usb/gadget directory contains many files.
Files which are related can be distributed into separate directories.
This patch moves the UDC drivers into a separate directory.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget/net2280.h')
-rw-r--r-- | drivers/usb/gadget/net2280.h | 403 |
1 files changed, 0 insertions, 403 deletions
diff --git a/drivers/usb/gadget/net2280.h b/drivers/usb/gadget/net2280.h deleted file mode 100644 index 03f15242d794..000000000000 --- a/drivers/usb/gadget/net2280.h +++ /dev/null @@ -1,403 +0,0 @@ -/* - * NetChip 2280 high/full speed USB device controller. - * Unlike many such controllers, this one talks PCI. - */ - -/* - * Copyright (C) 2002 NetChip Technology, Inc. (http://www.netchip.com) - * Copyright (C) 2003 David Brownell - * Copyright (C) 2014 Ricardo Ribalda - Qtechnology/AS - * - * 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/usb/net2280.h> -#include <linux/usb/usb338x.h> - -/*-------------------------------------------------------------------------*/ - -#ifdef __KERNEL__ - -/* indexed registers [11.10] are accessed indirectly - * caller must own the device lock. - */ - -static inline u32 get_idx_reg(struct net2280_regs __iomem *regs, u32 index) -{ - writel(index, ®s->idxaddr); - /* NOTE: synchs device/cpu memory views */ - return readl(®s->idxdata); -} - -static inline void -set_idx_reg(struct net2280_regs __iomem *regs, u32 index, u32 value) -{ - writel(index, ®s->idxaddr); - writel(value, ®s->idxdata); - /* posted, may not be visible yet */ -} - -#endif /* __KERNEL__ */ - -#define PCI_VENDOR_ID_PLX_LEGACY 0x17cc - -#define PLX_LEGACY BIT(0) -#define PLX_2280 BIT(1) -#define PLX_SUPERSPEED BIT(2) - -#define REG_DIAG 0x0 -#define RETRY_COUNTER 16 -#define FORCE_PCI_SERR 11 -#define FORCE_PCI_INTERRUPT 10 -#define FORCE_USB_INTERRUPT 9 -#define FORCE_CPU_INTERRUPT 8 -#define ILLEGAL_BYTE_ENABLES 5 -#define FAST_TIMES 4 -#define FORCE_RECEIVE_ERROR 2 -#define FORCE_TRANSMIT_CRC_ERROR 0 -#define REG_FRAME 0x02 /* from last sof */ -#define REG_CHIPREV 0x03 /* in bcd */ -#define REG_HS_NAK_RATE 0x0a /* NAK per N uframes */ - -#define CHIPREV_1 0x0100 -#define CHIPREV_1A 0x0110 - -/* DEFECT 7374 */ -#define DEFECT_7374_NUMBEROF_MAX_WAIT_LOOPS 200 -#define DEFECT_7374_PROCESSOR_WAIT_TIME 10 - -/* ep0 max packet size */ -#define EP0_SS_MAX_PACKET_SIZE 0x200 -#define EP0_HS_MAX_PACKET_SIZE 0x40 -#ifdef __KERNEL__ - -/*-------------------------------------------------------------------------*/ - -/* [8.3] for scatter/gather i/o - * use struct net2280_dma_regs bitfields - */ -struct net2280_dma { - __le32 dmacount; - __le32 dmaaddr; /* the buffer */ - __le32 dmadesc; /* next dma descriptor */ - __le32 _reserved; -} __aligned(16); - -/*-------------------------------------------------------------------------*/ - -/* DRIVER DATA STRUCTURES and UTILITIES */ - -struct net2280_ep { - struct usb_ep ep; - struct net2280_ep_regs __iomem *cfg; - struct net2280_ep_regs __iomem *regs; - struct net2280_dma_regs __iomem *dma; - struct net2280_dma *dummy; - struct usb338x_fifo_regs __iomem *fiforegs; - dma_addr_t td_dma; /* of dummy */ - struct net2280 *dev; - unsigned long irqs; - unsigned is_halt:1, dma_started:1; - - /* analogous to a host-side qh */ - struct list_head queue; - const struct usb_endpoint_descriptor *desc; - unsigned num : 8, - fifo_size : 12, - in_fifo_validate : 1, - out_overflow : 1, - stopped : 1, - wedged : 1, - is_in : 1, - is_iso : 1, - responded : 1; -}; - -static inline void allow_status(struct net2280_ep *ep) -{ - /* ep0 only */ - writel(BIT(CLEAR_CONTROL_STATUS_PHASE_HANDSHAKE) | - BIT(CLEAR_NAK_OUT_PACKETS) | - BIT(CLEAR_NAK_OUT_PACKETS_MODE), - &ep->regs->ep_rsp); - ep->stopped = 1; -} - -static void allow_status_338x(struct net2280_ep *ep) -{ - /* - * Control Status Phase Handshake was set by the chip when the setup - * packet arrived. While set, the chip automatically NAKs the host's - * Status Phase tokens. - */ - writel(BIT(CLEAR_CONTROL_STATUS_PHASE_HANDSHAKE), &ep->regs->ep_rsp); - - ep->stopped = 1; - - /* TD 9.9 Halt Endpoint test. TD 9.22 set feature test. */ - ep->responded = 0; -} - -struct net2280_request { - struct usb_request req; - struct net2280_dma *td; - dma_addr_t td_dma; - struct list_head queue; - unsigned mapped : 1, - valid : 1; -}; - -struct net2280 { - /* each pci device provides one gadget, several endpoints */ - struct usb_gadget gadget; - spinlock_t lock; - struct net2280_ep ep[9]; - struct usb_gadget_driver *driver; - unsigned enabled : 1, - protocol_stall : 1, - softconnect : 1, - got_irq : 1, - region:1, - u1_enable:1, - u2_enable:1, - ltm_enable:1, - wakeup_enable:1, - selfpowered:1, - addressed_state:1; - u16 chiprev; - int enhanced_mode; - int n_ep; - kernel_ulong_t quirks; - - - /* pci state used to access those endpoints */ - struct pci_dev *pdev; - struct net2280_regs __iomem *regs; - struct net2280_usb_regs __iomem *usb; - struct usb338x_usb_ext_regs __iomem *usb_ext; - struct net2280_pci_regs __iomem *pci; - struct net2280_dma_regs __iomem *dma; - struct net2280_dep_regs __iomem *dep; - struct net2280_ep_regs __iomem *epregs; - struct usb338x_fifo_regs __iomem *fiforegs; - struct usb338x_ll_regs __iomem *llregs; - struct usb338x_ll_lfps_regs __iomem *ll_lfps_regs; - struct usb338x_ll_tsn_regs __iomem *ll_tsn_regs; - struct usb338x_ll_chi_regs __iomem *ll_chicken_reg; - struct usb338x_pl_regs __iomem *plregs; - - struct pci_pool *requests; - /* statistics...*/ -}; - -static inline void set_halt(struct net2280_ep *ep) -{ - /* ep0 and bulk/intr endpoints */ - writel(BIT(CLEAR_CONTROL_STATUS_PHASE_HANDSHAKE) | - /* set NAK_OUT for erratum 0114 */ - ((ep->dev->chiprev == CHIPREV_1) << SET_NAK_OUT_PACKETS) | - BIT(SET_ENDPOINT_HALT), - &ep->regs->ep_rsp); -} - -static inline void clear_halt(struct net2280_ep *ep) -{ - /* ep0 and bulk/intr endpoints */ - writel(BIT(CLEAR_ENDPOINT_HALT) | - BIT(CLEAR_ENDPOINT_TOGGLE) | - /* - * unless the gadget driver left a short packet in the - * fifo, this reverses the erratum 0114 workaround. - */ - ((ep->dev->chiprev == CHIPREV_1) << CLEAR_NAK_OUT_PACKETS), - &ep->regs->ep_rsp); -} - -/* - * FSM value for Defect 7374 (U1U2 Test) is managed in - * chip's SCRATCH register: - */ -#define DEFECT7374_FSM_FIELD 28 - -/* Waiting for Control Read: - * - A transition to this state indicates a fresh USB connection, - * before the first Setup Packet. The connection speed is not - * known. Firmware is waiting for the first Control Read. - * - Starting state: This state can be thought of as the FSM's typical - * starting state. - * - Tip: Upon the first SS Control Read the FSM never - * returns to this state. - */ -#define DEFECT7374_FSM_WAITING_FOR_CONTROL_READ BIT(DEFECT7374_FSM_FIELD) - -/* Non-SS Control Read: - * - A transition to this state indicates detection of the first HS - * or FS Control Read. - * - Tip: Upon the first SS Control Read the FSM never - * returns to this state. - */ -#define DEFECT7374_FSM_NON_SS_CONTROL_READ (2 << DEFECT7374_FSM_FIELD) - -/* SS Control Read: - * - A transition to this state indicates detection of the - * first SS Control Read. - * - This state indicates workaround completion. Workarounds no longer - * need to be applied (as long as the chip remains powered up). - * - Tip: Once in this state the FSM state does not change (until - * the chip's power is lost and restored). - * - This can be thought of as the final state of the FSM; - * the FSM 'locks-up' in this state until the chip loses power. - */ -#define DEFECT7374_FSM_SS_CONTROL_READ (3 << DEFECT7374_FSM_FIELD) - -#ifdef USE_RDK_LEDS - -static inline void net2280_led_init(struct net2280 *dev) -{ - /* LED3 (green) is on during USB activity. note erratum 0113. */ - writel(BIT(GPIO3_LED_SELECT) | - BIT(GPIO3_OUTPUT_ENABLE) | - BIT(GPIO2_OUTPUT_ENABLE) | - BIT(GPIO1_OUTPUT_ENABLE) | - BIT(GPIO0_OUTPUT_ENABLE), - &dev->regs->gpioctl); -} - -/* indicate speed with bi-color LED 0/1 */ -static inline -void net2280_led_speed(struct net2280 *dev, enum usb_device_speed speed) -{ - u32 val = readl(&dev->regs->gpioctl); - switch (speed) { - case USB_SPEED_SUPER: /* green + red */ - val |= BIT(GPIO0_DATA) | BIT(GPIO1_DATA); - break; - case USB_SPEED_HIGH: /* green */ - val &= ~BIT(GPIO0_DATA); - val |= BIT(GPIO1_DATA); - break; - case USB_SPEED_FULL: /* red */ - val &= ~BIT(GPIO1_DATA); - val |= BIT(GPIO0_DATA); - break; - default: /* (off/black) */ - val &= ~(BIT(GPIO1_DATA) | BIT(GPIO0_DATA)); - break; - } - writel(val, &dev->regs->gpioctl); -} - -/* indicate power with LED 2 */ -static inline void net2280_led_active(struct net2280 *dev, int is_active) -{ - u32 val = readl(&dev->regs->gpioctl); - - /* FIXME this LED never seems to turn on.*/ - if (is_active) - val |= GPIO2_DATA; - else - val &= ~GPIO2_DATA; - writel(val, &dev->regs->gpioctl); -} - -static inline void net2280_led_shutdown(struct net2280 *dev) -{ - /* turn off all four GPIO*_DATA bits */ - writel(readl(&dev->regs->gpioctl) & ~0x0f, - &dev->regs->gpioctl); -} - -#else - -#define net2280_led_init(dev) do { } while (0) -#define net2280_led_speed(dev, speed) do { } while (0) -#define net2280_led_shutdown(dev) do { } while (0) - -#endif - -/*-------------------------------------------------------------------------*/ - -#define ep_dbg(ndev, fmt, args...) \ - dev_dbg((&((ndev)->pdev->dev)), fmt, ##args) - -#define ep_vdbg(ndev, fmt, args...) \ - dev_vdbg((&((ndev)->pdev->dev)), fmt, ##args) - -#define ep_info(ndev, fmt, args...) \ - dev_info((&((ndev)->pdev->dev)), fmt, ##args) - -#define ep_warn(ndev, fmt, args...) \ - dev_warn((&((ndev)->pdev->dev)), fmt, ##args) - -#define ep_err(ndev, fmt, args...) \ - dev_err((&((ndev)->pdev->dev)), fmt, ##args) - -/*-------------------------------------------------------------------------*/ - -static inline void set_fifo_bytecount(struct net2280_ep *ep, unsigned count) -{ - if (ep->dev->pdev->vendor == 0x17cc) - writeb(count, 2 + (u8 __iomem *) &ep->regs->ep_cfg); - else{ - u32 tmp = readl(&ep->cfg->ep_cfg) & - (~(0x07 << EP_FIFO_BYTE_COUNT)); - writel(tmp | (count << EP_FIFO_BYTE_COUNT), &ep->cfg->ep_cfg); - } -} - -static inline void start_out_naking(struct net2280_ep *ep) -{ - /* NOTE: hardware races lurk here, and PING protocol issues */ - writel(BIT(SET_NAK_OUT_PACKETS), &ep->regs->ep_rsp); - /* synch with device */ - readl(&ep->regs->ep_rsp); -} - -#ifdef DEBUG -static inline void assert_out_naking(struct net2280_ep *ep, const char *where) -{ - u32 tmp = readl(&ep->regs->ep_stat); - - if ((tmp & BIT(NAK_OUT_PACKETS)) == 0) { - ep_dbg(ep->dev, "%s %s %08x !NAK\n", - ep->ep.name, where, tmp); - writel(BIT(SET_NAK_OUT_PACKETS), - &ep->regs->ep_rsp); - } -} -#define ASSERT_OUT_NAKING(ep) assert_out_naking(ep, __func__) -#else -#define ASSERT_OUT_NAKING(ep) do {} while (0) -#endif - -static inline void stop_out_naking(struct net2280_ep *ep) -{ - u32 tmp; - - tmp = readl(&ep->regs->ep_stat); - if ((tmp & BIT(NAK_OUT_PACKETS)) != 0) - writel(BIT(CLEAR_NAK_OUT_PACKETS), &ep->regs->ep_rsp); -} - - -static inline void set_max_speed(struct net2280_ep *ep, u32 max) -{ - u32 reg; - static const u32 ep_enhanced[9] = { 0x10, 0x60, 0x30, 0x80, - 0x50, 0x20, 0x70, 0x40, 0x90 }; - - if (ep->dev->enhanced_mode) - reg = ep_enhanced[ep->num]; - else{ - reg = (ep->num + 1) * 0x10; - if (ep->dev->gadget.speed != USB_SPEED_HIGH) - reg += 1; - } - - set_idx_reg(ep->dev->regs, reg, max); -} - -#endif /* __KERNEL__ */ |