diff options
Diffstat (limited to 'drivers/usb/host')
37 files changed, 2203 insertions, 901 deletions
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index cc60759083bf..62711870f8ee 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -67,6 +67,11 @@ config USB_EHCI_TT_NEWSCHED If unsure, say N. +config USB_EHCI_BIG_ENDIAN_MMIO + bool + depends on USB_EHCI_HCD + default n + config USB_ISP116X_HCD tristate "ISP116X HCD support" depends on USB @@ -101,21 +106,48 @@ config USB_OHCI_HCD_PPC_SOC bool "OHCI support for on-chip PPC USB controller" depends on USB_OHCI_HCD && (STB03xxx || PPC_MPC52xx) default y - select USB_OHCI_BIG_ENDIAN + select USB_OHCI_BIG_ENDIAN_DESC + select USB_OHCI_BIG_ENDIAN_MMIO ---help--- Enables support for the USB controller on the MPC52xx or STB03xxx processor chip. If unsure, say Y. +config USB_OHCI_HCD_PPC_OF + bool "OHCI support for PPC USB controller on OF platform bus" + depends on USB_OHCI_HCD && PPC_OF + default y + ---help--- + Enables support for the USB controller PowerPC present on the + OpenFirmware platform bus. + +config USB_OHCI_HCD_PPC_OF_BE + bool "Support big endian HC" + depends on USB_OHCI_HCD_PPC_OF + default y + select USB_OHCI_BIG_ENDIAN_DESC + select USB_OHCI_BIG_ENDIAN_MMIO + +config USB_OHCI_HCD_PPC_OF_LE + bool "Support little endian HC" + depends on USB_OHCI_HCD_PPC_OF + default n + select USB_OHCI_LITTLE_ENDIAN + config USB_OHCI_HCD_PCI bool "OHCI support for PCI-bus USB controllers" - depends on USB_OHCI_HCD && PCI && (STB03xxx || PPC_MPC52xx) + depends on USB_OHCI_HCD && PCI && (STB03xxx || PPC_MPC52xx || USB_OHCI_HCD_PPC_OF) default y select USB_OHCI_LITTLE_ENDIAN ---help--- Enables support for PCI-bus plug-in USB controller cards. If unsure, say Y. -config USB_OHCI_BIG_ENDIAN +config USB_OHCI_BIG_ENDIAN_DESC + bool + depends on USB_OHCI_HCD + default n + +config USB_OHCI_BIG_ENDIAN_MMIO bool depends on USB_OHCI_HCD default n diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c index 56349d21e6ea..246afea9e83b 100644 --- a/drivers/usb/host/ehci-dbg.c +++ b/drivers/usb/host/ehci-dbg.c @@ -43,7 +43,7 @@ */ static void dbg_hcs_params (struct ehci_hcd *ehci, char *label) { - u32 params = readl (&ehci->caps->hcs_params); + u32 params = ehci_readl(ehci, &ehci->caps->hcs_params); ehci_dbg (ehci, "%s hcs_params 0x%x dbg=%d%s cc=%d pcc=%d%s%s ports=%d\n", @@ -87,7 +87,7 @@ static inline void dbg_hcs_params (struct ehci_hcd *ehci, char *label) {} * */ static void dbg_hcc_params (struct ehci_hcd *ehci, char *label) { - u32 params = readl (&ehci->caps->hcc_params); + u32 params = ehci_readl(ehci, &ehci->caps->hcc_params); if (HCC_ISOC_CACHE (params)) { ehci_dbg (ehci, @@ -653,7 +653,7 @@ show_registers (struct class_device *class_dev, char *buf) } /* Capability Registers */ - i = HC_VERSION(readl (&ehci->caps->hc_capbase)); + i = HC_VERSION(ehci_readl(ehci, &ehci->caps->hc_capbase)); temp = scnprintf (next, size, "bus %s, device %s (driver " DRIVER_VERSION ")\n" "%s\n" @@ -673,7 +673,7 @@ show_registers (struct class_device *class_dev, char *buf) unsigned count = 256/4; pdev = to_pci_dev(ehci_to_hcd(ehci)->self.controller); - offset = HCC_EXT_CAPS (readl (&ehci->caps->hcc_params)); + offset = HCC_EXT_CAPS (ehci_readl(ehci, &ehci->caps->hcc_params)); while (offset && count--) { pci_read_config_dword (pdev, offset, &cap); switch (cap & 0xff) { @@ -704,50 +704,50 @@ show_registers (struct class_device *class_dev, char *buf) #endif // FIXME interpret both types of params - i = readl (&ehci->caps->hcs_params); + i = ehci_readl(ehci, &ehci->caps->hcs_params); temp = scnprintf (next, size, "structural params 0x%08x\n", i); size -= temp; next += temp; - i = readl (&ehci->caps->hcc_params); + i = ehci_readl(ehci, &ehci->caps->hcc_params); temp = scnprintf (next, size, "capability params 0x%08x\n", i); size -= temp; next += temp; /* Operational Registers */ temp = dbg_status_buf (scratch, sizeof scratch, label, - readl (&ehci->regs->status)); + ehci_readl(ehci, &ehci->regs->status)); temp = scnprintf (next, size, fmt, temp, scratch); size -= temp; next += temp; temp = dbg_command_buf (scratch, sizeof scratch, label, - readl (&ehci->regs->command)); + ehci_readl(ehci, &ehci->regs->command)); temp = scnprintf (next, size, fmt, temp, scratch); size -= temp; next += temp; temp = dbg_intr_buf (scratch, sizeof scratch, label, - readl (&ehci->regs->intr_enable)); + ehci_readl(ehci, &ehci->regs->intr_enable)); temp = scnprintf (next, size, fmt, temp, scratch); size -= temp; next += temp; temp = scnprintf (next, size, "uframe %04x\n", - readl (&ehci->regs->frame_index)); + ehci_readl(ehci, &ehci->regs->frame_index)); size -= temp; next += temp; for (i = 1; i <= HCS_N_PORTS (ehci->hcs_params); i++) { temp = dbg_port_buf (scratch, sizeof scratch, label, i, - readl (&ehci->regs->port_status [i - 1])); + ehci_readl(ehci, &ehci->regs->port_status [i - 1])); temp = scnprintf (next, size, fmt, temp, scratch); size -= temp; next += temp; if (i == HCS_DEBUG_PORT(ehci->hcs_params) && ehci->debug) { temp = scnprintf (next, size, " debug control %08x\n", - readl (&ehci->debug->control)); + ehci_readl(ehci, &ehci->debug->control)); size -= temp; next += temp; } diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index 1a915e982c1c..a52480505f78 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -177,7 +177,7 @@ static void mpc83xx_setup_phy(struct ehci_hcd *ehci, case FSL_USB2_PHY_NONE: break; } - writel(portsc, &ehci->regs->port_status[port_offset]); + ehci_writel(ehci, portsc, &ehci->regs->port_status[port_offset]); } static void mpc83xx_usb_setup(struct usb_hcd *hcd) @@ -214,7 +214,7 @@ static void mpc83xx_usb_setup(struct usb_hcd *hcd) } /* put controller in host mode. */ - writel(0x00000003, non_ehci + FSL_SOC_USB_USBMODE); + ehci_writel(ehci, 0x00000003, non_ehci + FSL_SOC_USB_USBMODE); out_be32(non_ehci + FSL_SOC_USB_PRICTRL, 0x0000000c); out_be32(non_ehci + FSL_SOC_USB_AGECNTTHRSH, 0x00000040); out_be32(non_ehci + FSL_SOC_USB_SICTRL, 0x00000001); @@ -238,12 +238,12 @@ static int ehci_fsl_setup(struct usb_hcd *hcd) /* EHCI registers start at offset 0x100 */ ehci->caps = hcd->regs + 0x100; ehci->regs = hcd->regs + 0x100 + - HC_LENGTH(readl(&ehci->caps->hc_capbase)); + HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase)); dbg_hcs_params(ehci, "reset"); dbg_hcc_params(ehci, "reset"); /* cache this readonly data; minimize chip reads */ - ehci->hcs_params = readl(&ehci->caps->hcs_params); + ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); retval = ehci_halt(ehci); if (retval) diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 025d33313681..185721dba42b 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -157,12 +157,13 @@ MODULE_PARM_DESC (ignore_oc, "ignore bogus hardware overcurrent indications"); * before driver shutdown. But it also seems to be caused by bugs in cardbus * bridge shutdown: shutting down the bridge before the devices using it. */ -static int handshake (void __iomem *ptr, u32 mask, u32 done, int usec) +static int handshake (struct ehci_hcd *ehci, void __iomem *ptr, + u32 mask, u32 done, int usec) { u32 result; do { - result = readl (ptr); + result = ehci_readl(ehci, ptr); if (result == ~(u32)0) /* card removed */ return -ENODEV; result &= mask; @@ -177,18 +178,19 @@ static int handshake (void __iomem *ptr, u32 mask, u32 done, int usec) /* force HC to halt state from unknown (EHCI spec section 2.3) */ static int ehci_halt (struct ehci_hcd *ehci) { - u32 temp = readl (&ehci->regs->status); + u32 temp = ehci_readl(ehci, &ehci->regs->status); /* disable any irqs left enabled by previous code */ - writel (0, &ehci->regs->intr_enable); + ehci_writel(ehci, 0, &ehci->regs->intr_enable); if ((temp & STS_HALT) != 0) return 0; - temp = readl (&ehci->regs->command); + temp = ehci_readl(ehci, &ehci->regs->command); temp &= ~CMD_RUN; - writel (temp, &ehci->regs->command); - return handshake (&ehci->regs->status, STS_HALT, STS_HALT, 16 * 125); + ehci_writel(ehci, temp, &ehci->regs->command); + return handshake (ehci, &ehci->regs->status, + STS_HALT, STS_HALT, 16 * 125); } /* put TDI/ARC silicon into EHCI mode */ @@ -198,23 +200,24 @@ static void tdi_reset (struct ehci_hcd *ehci) u32 tmp; reg_ptr = (u32 __iomem *)(((u8 __iomem *)ehci->regs) + 0x68); - tmp = readl (reg_ptr); + tmp = ehci_readl(ehci, reg_ptr); tmp |= 0x3; - writel (tmp, reg_ptr); + ehci_writel(ehci, tmp, reg_ptr); } /* reset a non-running (STS_HALT == 1) controller */ static int ehci_reset (struct ehci_hcd *ehci) { int retval; - u32 command = readl (&ehci->regs->command); + u32 command = ehci_readl(ehci, &ehci->regs->command); command |= CMD_RESET; dbg_cmd (ehci, "reset", command); - writel (command, &ehci->regs->command); + ehci_writel(ehci, command, &ehci->regs->command); ehci_to_hcd(ehci)->state = HC_STATE_HALT; ehci->next_statechange = jiffies; - retval = handshake (&ehci->regs->command, CMD_RESET, 0, 250 * 1000); + retval = handshake (ehci, &ehci->regs->command, + CMD_RESET, 0, 250 * 1000); if (retval) return retval; @@ -236,21 +239,21 @@ static void ehci_quiesce (struct ehci_hcd *ehci) #endif /* wait for any schedule enables/disables to take effect */ - temp = readl (&ehci->regs->command) << 10; + temp = ehci_readl(ehci, &ehci->regs->command) << 10; temp &= STS_ASS | STS_PSS; - if (handshake (&ehci->regs->status, STS_ASS | STS_PSS, + if (handshake (ehci, &ehci->regs->status, STS_ASS | STS_PSS, temp, 16 * 125) != 0) { ehci_to_hcd(ehci)->state = HC_STATE_HALT; return; } /* then disable anything that's still active */ - temp = readl (&ehci->regs->command); + temp = ehci_readl(ehci, &ehci->regs->command); temp &= ~(CMD_ASE | CMD_IAAD | CMD_PSE); - writel (temp, &ehci->regs->command); + ehci_writel(ehci, temp, &ehci->regs->command); /* hardware can take 16 microframes to turn off ... */ - if (handshake (&ehci->regs->status, STS_ASS | STS_PSS, + if (handshake (ehci, &ehci->regs->status, STS_ASS | STS_PSS, 0, 16 * 125) != 0) { ehci_to_hcd(ehci)->state = HC_STATE_HALT; return; @@ -277,11 +280,11 @@ static void ehci_watchdog (unsigned long param) /* lost IAA irqs wedge things badly; seen with a vt8235 */ if (ehci->reclaim) { - u32 status = readl (&ehci->regs->status); + u32 status = ehci_readl(ehci, &ehci->regs->status); if (status & STS_IAA) { ehci_vdbg (ehci, "lost IAA\n"); COUNT (ehci->stats.lost_iaa); - writel (STS_IAA, &ehci->regs->status); + ehci_writel(ehci, STS_IAA, &ehci->regs->status); ehci->reclaim_ready = 1; } } @@ -309,7 +312,7 @@ ehci_shutdown (struct usb_hcd *hcd) (void) ehci_halt (ehci); /* make BIOS/etc use companion controller during reboot */ - writel (0, &ehci->regs->configured_flag); + ehci_writel(ehci, 0, &ehci->regs->configured_flag); } static void ehci_port_power (struct ehci_hcd *ehci, int is_on) @@ -379,12 +382,13 @@ static void ehci_stop (struct usb_hcd *hcd) ehci_quiesce (ehci); ehci_reset (ehci); - writel (0, &ehci->regs->intr_enable); + ehci_writel(ehci, 0, &ehci->regs->intr_enable); spin_unlock_irq(&ehci->lock); /* let companion controllers work when we aren't */ - writel (0, &ehci->regs->configured_flag); + ehci_writel(ehci, 0, &ehci->regs->configured_flag); + remove_companion_file(ehci); remove_debug_files (ehci); /* root hub is shut down separately (first, when possible) */ @@ -402,7 +406,8 @@ static void ehci_stop (struct usb_hcd *hcd) ehci->stats.complete, ehci->stats.unlink); #endif - dbg_status (ehci, "ehci_stop completed", readl (&ehci->regs->status)); + dbg_status (ehci, "ehci_stop completed", + ehci_readl(ehci, &ehci->regs->status)); } /* one-time init, only for memory state */ @@ -428,7 +433,7 @@ static int ehci_init(struct usb_hcd *hcd) return retval; /* controllers may cache some of the periodic schedule ... */ - hcc_params = readl(&ehci->caps->hcc_params); + hcc_params = ehci_readl(ehci, &ehci->caps->hcc_params); if (HCC_ISOC_CACHE(hcc_params)) // full frame cache ehci->i_thresh = 8; else // N microframes cached @@ -496,13 +501,16 @@ static int ehci_run (struct usb_hcd *hcd) u32 temp; u32 hcc_params; + hcd->uses_new_polling = 1; + hcd->poll_rh = 0; + /* EHCI spec section 4.1 */ if ((retval = ehci_reset(ehci)) != 0) { ehci_mem_cleanup(ehci); return retval; } - writel(ehci->periodic_dma, &ehci->regs->frame_list); - writel((u32)ehci->async->qh_dma, &ehci->regs->async_next); + ehci_writel(ehci, ehci->periodic_dma, &ehci->regs->frame_list); + ehci_writel(ehci, (u32)ehci->async->qh_dma, &ehci->regs->async_next); /* * hcc_params controls whether ehci->regs->segment must (!!!) @@ -516,9 +524,9 @@ static int ehci_run (struct usb_hcd *hcd) * Scsi_Host.highmem_io, and so forth. It's readonly to all * host side drivers though. */ - hcc_params = readl(&ehci->caps->hcc_params); + hcc_params = ehci_readl(ehci, &ehci->caps->hcc_params); if (HCC_64BIT_ADDR(hcc_params)) { - writel(0, &ehci->regs->segment); + ehci_writel(ehci, 0, &ehci->regs->segment); #if 0 // this is deeply broken on almost all architectures if (!dma_set_mask(hcd->self.controller, DMA_64BIT_MASK)) @@ -531,7 +539,7 @@ static int ehci_run (struct usb_hcd *hcd) // root hub will detect new devices (why?); NEC doesn't ehci->command &= ~(CMD_LRESET|CMD_IAAD|CMD_PSE|CMD_ASE|CMD_RESET); ehci->command |= CMD_RUN; - writel (ehci->command, &ehci->regs->command); + ehci_writel(ehci, ehci->command, &ehci->regs->command); dbg_cmd (ehci, "init", ehci->command); /* @@ -541,23 +549,25 @@ static int ehci_run (struct usb_hcd *hcd) * and there's no companion controller unless maybe for USB OTG.) */ hcd->state = HC_STATE_RUNNING; - writel (FLAG_CF, &ehci->regs->configured_flag); - readl (&ehci->regs->command); /* unblock posted writes */ + ehci_writel(ehci, FLAG_CF, &ehci->regs->configured_flag); + ehci_readl(ehci, &ehci->regs->command); /* unblock posted writes */ - temp = HC_VERSION(readl (&ehci->caps->hc_capbase)); + temp = HC_VERSION(ehci_readl(ehci, &ehci->caps->hc_capbase)); ehci_info (ehci, "USB %x.%x started, EHCI %x.%02x, driver %s%s\n", ((ehci->sbrn & 0xf0)>>4), (ehci->sbrn & 0x0f), temp >> 8, temp & 0xff, DRIVER_VERSION, ignore_oc ? ", overcurrent ignored" : ""); - writel (INTR_MASK, &ehci->regs->intr_enable); /* Turn On Interrupts */ + ehci_writel(ehci, INTR_MASK, + &ehci->regs->intr_enable); /* Turn On Interrupts */ /* GRR this is run-once init(), being done every time the HC starts. * So long as they're part of class devices, we can't do it init() * since the class device isn't created that early. */ create_debug_files(ehci); + create_companion_file(ehci); return 0; } @@ -567,12 +577,12 @@ static int ehci_run (struct usb_hcd *hcd) static irqreturn_t ehci_irq (struct usb_hcd *hcd) { struct ehci_hcd *ehci = hcd_to_ehci (hcd); - u32 status; + u32 status, pcd_status = 0; int bh; spin_lock (&ehci->lock); - status = readl (&ehci->regs->status); + status = ehci_readl(ehci, &ehci->regs->status); /* e.g. cardbus physical eject */ if (status == ~(u32) 0) { @@ -587,8 +597,8 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) } /* clear (just) interrupts */ - writel (status, &ehci->regs->status); - readl (&ehci->regs->command); /* unblock posted write */ + ehci_writel(ehci, status, &ehci->regs->status); + ehci_readl(ehci, &ehci->regs->command); /* unblock posted write */ bh = 0; #ifdef EHCI_VERBOSE_DEBUG @@ -617,13 +627,15 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) /* remote wakeup [4.3.1] */ if (status & STS_PCD) { unsigned i = HCS_N_PORTS (ehci->hcs_params); + pcd_status = status; /* resume root hub? */ - if (!(readl(&ehci->regs->command) & CMD_RUN)) + if (!(ehci_readl(ehci, &ehci->regs->command) & CMD_RUN)) usb_hcd_resume_root_hub(hcd); while (i--) { - int pstatus = readl (&ehci->regs->port_status [i]); + int pstatus = ehci_readl(ehci, + &ehci->regs->port_status [i]); if (pstatus & PORT_OWNER) continue; @@ -643,14 +655,15 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) /* PCI errors [4.15.2.4] */ if (unlikely ((status & STS_FATAL) != 0)) { /* bogus "fatal" IRQs appear on some chips... why? */ - status = readl (&ehci->regs->status); - dbg_cmd (ehci, "fatal", readl (&ehci->regs->command)); + status = ehci_readl(ehci, &ehci->regs->status); + dbg_cmd (ehci, "fatal", ehci_readl(ehci, + &ehci->regs->command)); dbg_status (ehci, "fatal", status); if (status & STS_HALT) { ehci_err (ehci, "fatal error\n"); dead: ehci_reset (ehci); - writel (0, &ehci->regs->configured_flag); + ehci_writel(ehci, 0, &ehci->regs->configured_flag); /* generic layer kills/unlinks all urbs, then * uses ehci_stop to clean up the rest */ @@ -661,6 +674,8 @@ dead: if (bh) ehci_work (ehci); spin_unlock (&ehci->lock); + if (pcd_status & STS_PCD) + usb_hcd_poll_rh_status(hcd); return IRQ_HANDLED; } @@ -873,7 +888,8 @@ done: static int ehci_get_frame (struct usb_hcd *hcd) { struct ehci_hcd *ehci = hcd_to_ehci (hcd); - return (readl (&ehci->regs->frame_index) >> 3) % ehci->periodic_size; + return (ehci_readl(ehci, &ehci->regs->frame_index) >> 3) % + ehci->periodic_size; } /*-------------------------------------------------------------------------*/ @@ -899,7 +915,13 @@ MODULE_LICENSE ("GPL"); #define PLATFORM_DRIVER ehci_hcd_au1xxx_driver #endif -#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) +#ifdef CONFIG_PPC_PS3 +#include "ehci-ps3.c" +#define PS3_SYSTEM_BUS_DRIVER ps3_ehci_sb_driver +#endif + +#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \ + !defined(PS3_SYSTEM_BUS_DRIVER) #error "missing bus glue for ehci-hcd" #endif @@ -924,6 +946,20 @@ static int __init ehci_hcd_init(void) #ifdef PLATFORM_DRIVER platform_driver_unregister(&PLATFORM_DRIVER); #endif + return retval; + } +#endif + +#ifdef PS3_SYSTEM_BUS_DRIVER + retval = ps3_system_bus_driver_register(&PS3_SYSTEM_BUS_DRIVER); + if (retval < 0) { +#ifdef PLATFORM_DRIVER + platform_driver_unregister(&PLATFORM_DRIVER); +#endif +#ifdef PCI_DRIVER + pci_unregister_driver(&PCI_DRIVER); +#endif + return retval; } #endif @@ -939,6 +975,9 @@ static void __exit ehci_hcd_cleanup(void) #ifdef PCI_DRIVER pci_unregister_driver(&PCI_DRIVER); #endif +#ifdef PS3_SYSTEM_BUS_DRIVER + ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER); +#endif } module_exit(ehci_hcd_cleanup); diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c index bfe5f307cba6..0d83c6df1a3b 100644 --- a/drivers/usb/host/ehci-hub.c +++ b/drivers/usb/host/ehci-hub.c @@ -47,7 +47,7 @@ static int ehci_bus_suspend (struct usb_hcd *hcd) ehci_quiesce (ehci); hcd->state = HC_STATE_QUIESCING; } - ehci->command = readl (&ehci->regs->command); + ehci->command = ehci_readl(ehci, &ehci->regs->command); if (ehci->reclaim) ehci->reclaim_ready = 1; ehci_work(ehci); @@ -60,7 +60,7 @@ static int ehci_bus_suspend (struct usb_hcd *hcd) ehci->bus_suspended = 0; while (port--) { u32 __iomem *reg = &ehci->regs->port_status [port]; - u32 t1 = readl (reg) & ~PORT_RWC_BITS; + u32 t1 = ehci_readl(ehci, reg) & ~PORT_RWC_BITS; u32 t2 = t1; /* keep track of which ports we suspend */ @@ -79,7 +79,7 @@ static int ehci_bus_suspend (struct usb_hcd *hcd) if (t1 != t2) { ehci_vdbg (ehci, "port %d, %08x -> %08x\n", port + 1, t1, t2); - writel (t2, reg); + ehci_writel(ehci, t2, reg); } } @@ -92,8 +92,8 @@ static int ehci_bus_suspend (struct usb_hcd *hcd) mask = INTR_MASK; if (!device_may_wakeup(&hcd->self.root_hub->dev)) mask &= ~STS_PCD; - writel(mask, &ehci->regs->intr_enable); - readl(&ehci->regs->intr_enable); + ehci_writel(ehci, mask, &ehci->regs->intr_enable); + ehci_readl(ehci, &ehci->regs->intr_enable); ehci->next_statechange = jiffies + msecs_to_jiffies(10); spin_unlock_irq (&ehci->lock); @@ -118,26 +118,26 @@ static int ehci_bus_resume (struct usb_hcd *hcd) * the last user of the controller, not reset/pm hardware keeping * state we gave to it. */ - temp = readl(&ehci->regs->intr_enable); + temp = ehci_readl(ehci, &ehci->regs->intr_enable); ehci_dbg(ehci, "resume root hub%s\n", temp ? "" : " after power loss"); /* at least some APM implementations will try to deliver * IRQs right away, so delay them until we're ready. */ - writel(0, &ehci->regs->intr_enable); + ehci_writel(ehci, 0, &ehci->regs->intr_enable); /* re-init operational registers */ - writel(0, &ehci->regs->segment); - writel(ehci->periodic_dma, &ehci->regs->frame_list); - writel((u32) ehci->async->qh_dma, &ehci->regs->async_next); + ehci_writel(ehci, 0, &ehci->regs->segment); + ehci_writel(ehci, ehci->periodic_dma, &ehci->regs->frame_list); + ehci_writel(ehci, (u32) ehci->async->qh_dma, &ehci->regs->async_next); /* restore CMD_RUN, framelist size, and irq threshold */ - writel (ehci->command, &ehci->regs->command); + ehci_writel(ehci, ehci->command, &ehci->regs->command); /* manually resume the ports we suspended during bus_suspend() */ i = HCS_N_PORTS (ehci->hcs_params); while (i--) { - temp = readl (&ehci->regs->port_status [i]); + temp = ehci_readl(ehci, &ehci->regs->port_status [i]); temp &= ~(PORT_RWC_BITS | PORT_WKOC_E | PORT_WKDISC_E | PORT_WKCONN_E); if (test_bit(i, &ehci->bus_suspended) && @@ -145,20 +145,20 @@ static int ehci_bus_resume (struct usb_hcd *hcd) ehci->reset_done [i] = jiffies + msecs_to_jiffies (20); temp |= PORT_RESUME; } - writel (temp, &ehci->regs->port_status [i]); + ehci_writel(ehci, temp, &ehci->regs->port_status [i]); } i = HCS_N_PORTS (ehci->hcs_params); mdelay (20); while (i--) { - temp = readl (&ehci->regs->port_status [i]); + temp = ehci_readl(ehci, &ehci->regs->port_status [i]); if (test_bit(i, &ehci->bus_suspended) && (temp & PORT_SUSPEND)) { temp &= ~(PORT_RWC_BITS | PORT_RESUME); - writel (temp, &ehci->regs->port_status [i]); + ehci_writel(ehci, temp, &ehci->regs->port_status [i]); ehci_vdbg (ehci, "resumed port %d\n", i + 1); } } - (void) readl (&ehci->regs->command); + (void) ehci_readl(ehci, &ehci->regs->command); /* maybe re-activate the schedule(s) */ temp = 0; @@ -168,14 +168,14 @@ static int ehci_bus_resume (struct usb_hcd *hcd) temp |= CMD_PSE; if (temp) { ehci->command |= temp; - writel (ehci->command, &ehci->regs->command); + ehci_writel(ehci, ehci->command, &ehci->regs->command); } ehci->next_statechange = jiffies + msecs_to_jiffies(5); hcd->state = HC_STATE_RUNNING; /* Now we can safely re-enable irqs */ - writel(INTR_MASK, &ehci->regs->intr_enable); + ehci_writel(ehci, INTR_MASK, &ehci->regs->intr_enable); spin_unlock_irq (&ehci->lock); return 0; @@ -190,9 +190,107 @@ static int ehci_bus_resume (struct usb_hcd *hcd) /*-------------------------------------------------------------------------*/ +/* Display the ports dedicated to the companion controller */ +static ssize_t show_companion(struct class_device *class_dev, char *buf) +{ + struct ehci_hcd *ehci; + int nports, index, n; + int count = PAGE_SIZE; + char *ptr = buf; + + ehci = hcd_to_ehci(bus_to_hcd(class_get_devdata(class_dev))); + nports = HCS_N_PORTS(ehci->hcs_params); + + for (index = 0; index < nports; ++index) { + if (test_bit(index, &ehci->companion_ports)) { + n = scnprintf(ptr, count, "%d\n", index + 1); + ptr += n; + count -= n; + } + } + return ptr - buf; +} + +/* + * Dedicate or undedicate a port to the companion controller. + * Syntax is "[-]portnum", where a leading '-' sign means + * return control of the port to the EHCI controller. + */ +static ssize_t store_companion(struct class_device *class_dev, + const char *buf, size_t count) +{ + struct ehci_hcd *ehci; + int portnum, new_owner, try; + u32 __iomem *status_reg; + u32 port_status; + + ehci = hcd_to_ehci(bus_to_hcd(class_get_devdata(class_dev))); + new_owner = PORT_OWNER; /* Owned by companion */ + if (sscanf(buf, "%d", &portnum) != 1) + return -EINVAL; + if (portnum < 0) { + portnum = - portnum; + new_owner = 0; /* Owned by EHCI */ + } + if (portnum <= 0 || portnum > HCS_N_PORTS(ehci->hcs_params)) + return -ENOENT; + status_reg = &ehci->regs->port_status[--portnum]; + if (new_owner) + set_bit(portnum, &ehci->companion_ports); + else + clear_bit(portnum, &ehci->companion_ports); + + /* + * The controller won't set the OWNER bit if the port is + * enabled, so this loop will sometimes require at least two + * iterations: one to disable the port and one to set OWNER. + */ + + for (try = 4; try > 0; --try) { + spin_lock_irq(&ehci->lock); + port_status = ehci_readl(ehci, status_reg); + if ((port_status & PORT_OWNER) == new_owner + || (port_status & (PORT_OWNER | PORT_CONNECT)) + == 0) + try = 0; + else { + port_status ^= PORT_OWNER; + port_status &= ~(PORT_PE | PORT_RWC_BITS); + ehci_writel(ehci, port_status, status_reg); + } + spin_unlock_irq(&ehci->lock); + if (try > 1) + msleep(5); + } + return count; +} +static CLASS_DEVICE_ATTR(companion, 0644, show_companion, store_companion); + +static inline void create_companion_file(struct ehci_hcd *ehci) +{ + int i; + + /* with integrated TT there is no companion! */ + if (!ehci_is_TDI(ehci)) + i = class_device_create_file(ehci_to_hcd(ehci)->self.class_dev, + &class_device_attr_companion); +} + +static inline void remove_companion_file(struct ehci_hcd *ehci) +{ + /* with integrated TT there is no companion! */ + if (!ehci_is_TDI(ehci)) + class_device_remove_file(ehci_to_hcd(ehci)->self.class_dev, + &class_device_attr_companion); +} + + +/*-------------------------------------------------------------------------*/ + static int check_reset_complete ( struct ehci_hcd *ehci, int index, + u32 __iomem *status_reg, int port_status ) { if (!(port_status & PORT_CONNECT)) { @@ -217,7 +315,7 @@ static int check_reset_complete ( // what happens if HCS_N_CC(params) == 0 ? port_status |= PORT_OWNER; port_status &= ~PORT_RWC_BITS; - writel (port_status, &ehci->regs->port_status [index]); + ehci_writel(ehci, port_status, status_reg); } else ehci_dbg (ehci, "port %d high speed\n", index + 1); @@ -268,22 +366,21 @@ ehci_hub_status_data (struct usb_hcd *hcd, char *buf) /* port N changes (bit N)? */ spin_lock_irqsave (&ehci->lock, flags); for (i = 0; i < ports; i++) { - temp = readl (&ehci->regs->port_status [i]); - if (temp & PORT_OWNER) { - /* don't report this in GetPortStatus */ - if (temp & PORT_CSC) { - temp &= ~PORT_RWC_BITS; - temp |= PORT_CSC; - writel (temp, &ehci->regs->port_status [i]); - } - continue; - } + temp = ehci_readl(ehci, &ehci->regs->port_status [i]); + + /* + * Return status information even for ports with OWNER set. + * Otherwise khubd wouldn't see the disconnect event when a + * high-speed device is switched over to the companion + * controller by the user. + */ + if (!(temp & PORT_CONNECT)) ehci->reset_done [i] = 0; if ((temp & mask) != 0 || ((temp & PORT_RESUME) != 0 - && time_after (jiffies, - ehci->reset_done [i]))) { + && time_after_eq(jiffies, + ehci->reset_done[i]))) { if (i < 7) buf [0] |= 1 << (i + 1); else @@ -345,6 +442,7 @@ static int ehci_hub_control ( ) { struct ehci_hcd *ehci = hcd_to_ehci (hcd); int ports = HCS_N_PORTS (ehci->hcs_params); + u32 __iomem *status_reg = &ehci->regs->port_status[wIndex - 1]; u32 temp, status; unsigned long flags; int retval = 0; @@ -373,18 +471,22 @@ static int ehci_hub_control ( if (!wIndex || wIndex > ports) goto error; wIndex--; - temp = readl (&ehci->regs->port_status [wIndex]); - if (temp & PORT_OWNER) - break; + temp = ehci_readl(ehci, status_reg); + + /* + * Even if OWNER is set, so the port is owned by the + * companion controller, khubd needs to be able to clear + * the port-change status bits (especially + * USB_PORT_FEAT_C_CONNECTION). + */ switch (wValue) { case USB_PORT_FEAT_ENABLE: - writel (temp & ~PORT_PE, - &ehci->regs->port_status [wIndex]); + ehci_writel(ehci, temp & ~PORT_PE, status_reg); break; case USB_PORT_FEAT_C_ENABLE: - writel((temp & ~PORT_RWC_BITS) | PORT_PEC, - &ehci->regs->port_status [wIndex]); + ehci_writel(ehci, (temp & ~PORT_RWC_BITS) | PORT_PEC, + status_reg); break; case USB_PORT_FEAT_SUSPEND: if (temp & PORT_RESET) @@ -396,8 +498,8 @@ static int ehci_hub_control ( goto error; /* resume signaling for 20 msec */ temp &= ~(PORT_RWC_BITS | PORT_WAKE_BITS); - writel (temp | PORT_RESUME, - &ehci->regs->port_status [wIndex]); + ehci_writel(ehci, temp | PORT_RESUME, + status_reg); ehci->reset_done [wIndex] = jiffies + msecs_to_jiffies (20); } @@ -407,16 +509,17 @@ static int ehci_hub_control ( break; case USB_PORT_FEAT_POWER: if (HCS_PPC (ehci->hcs_params)) - writel (temp & ~(PORT_RWC_BITS | PORT_POWER), - &ehci->regs->port_status [wIndex]); + ehci_writel(ehci, + temp & ~(PORT_RWC_BITS | PORT_POWER), + status_reg); break; case USB_PORT_FEAT_C_CONNECTION: - writel((temp & ~PORT_RWC_BITS) | PORT_CSC, - &ehci->regs->port_status [wIndex]); + ehci_writel(ehci, (temp & ~PORT_RWC_BITS) | PORT_CSC, + status_reg); break; case USB_PORT_FEAT_C_OVER_CURRENT: - writel((temp & ~PORT_RWC_BITS) | PORT_OCC, - &ehci->regs->port_status [wIndex]); + ehci_writel(ehci, (temp & ~PORT_RWC_BITS) | PORT_OCC, + status_reg); break; case USB_PORT_FEAT_C_RESET: /* GetPortStatus clears reset */ @@ -424,7 +527,7 @@ static int ehci_hub_control ( default: goto error; } - readl (&ehci->regs->command); /* unblock posted write */ + ehci_readl(ehci, &ehci->regs->command); /* unblock posted write */ break; case GetHubDescriptor: ehci_hub_descriptor (ehci, (struct usb_hub_descriptor *) @@ -440,7 +543,7 @@ static int ehci_hub_control ( goto error; wIndex--; status = 0; - temp = readl (&ehci->regs->port_status [wIndex]); + temp = ehci_readl(ehci, status_reg); // wPortChange bits if (temp & PORT_CSC) @@ -451,42 +554,55 @@ static int ehci_hub_control ( status |= 1 << USB_PORT_FEAT_C_OVER_CURRENT; /* whoever resumes must GetPortStatus to complete it!! */ - if ((temp & PORT_RESUME) - && time_after (jiffies, - ehci->reset_done [wIndex])) { - status |= 1 << USB_PORT_FEAT_C_SUSPEND; - ehci->reset_done [wIndex] = 0; + if (temp & PORT_RESUME) { - /* stop resume signaling */ - temp = readl (&ehci->regs->port_status [wIndex]); - writel (temp & ~(PORT_RWC_BITS | PORT_RESUME), - &ehci->regs->port_status [wIndex]); - retval = handshake ( - &ehci->regs->port_status [wIndex], - PORT_RESUME, 0, 2000 /* 2msec */); - if (retval != 0) { - ehci_err (ehci, "port %d resume error %d\n", - wIndex + 1, retval); - goto error; + /* Remote Wakeup received? */ + if (!ehci->reset_done[wIndex]) { + /* resume signaling for 20 msec */ + ehci->reset_done[wIndex] = jiffies + + msecs_to_jiffies(20); + /* check the port again */ + mod_timer(&ehci_to_hcd(ehci)->rh_timer, + ehci->reset_done[wIndex]); + } + + /* resume completed? */ + else if (time_after_eq(jiffies, + ehci->reset_done[wIndex])) { + status |= 1 << USB_PORT_FEAT_C_SUSPEND; + ehci->reset_done[wIndex] = 0; + + /* stop resume signaling */ + temp = ehci_readl(ehci, status_reg); + ehci_writel(ehci, + temp & ~(PORT_RWC_BITS | PORT_RESUME), + status_reg); + retval = handshake(ehci, status_reg, + PORT_RESUME, 0, 2000 /* 2msec */); + if (retval != 0) { + ehci_err(ehci, + "port %d resume error %d\n", + wIndex + 1, retval); + goto error; + } + temp &= ~(PORT_SUSPEND|PORT_RESUME|(3<<10)); } - temp &= ~(PORT_SUSPEND|PORT_RESUME|(3<<10)); } /* whoever resets must GetPortStatus to complete it!! */ if ((temp & PORT_RESET) - && time_after (jiffies, - ehci->reset_done [wIndex])) { + && time_after_eq(jiffies, + ehci->reset_done[wIndex])) { status |= 1 << USB_PORT_FEAT_C_RESET; ehci->reset_done [wIndex] = 0; /* force reset to complete */ - writel (temp & ~(PORT_RWC_BITS | PORT_RESET), - &ehci->regs->port_status [wIndex]); + ehci_writel(ehci, temp & ~(PORT_RWC_BITS | PORT_RESET), + status_reg); /* REVISIT: some hardware needs 550+ usec to clear * this bit; seems too long to spin routinely... */ - retval = handshake ( - &ehci->regs->port_status [wIndex], + retval = handshake(ehci, status_reg, PORT_RESET, 0, 750); if (retval != 0) { ehci_err (ehci, "port %d reset error %d\n", @@ -495,28 +611,41 @@ static int ehci_hub_control ( } /* see what we found out */ - temp = check_reset_complete (ehci, wIndex, - readl (&ehci->regs->port_status [wIndex])); + temp = check_reset_complete (ehci, wIndex, status_reg, + ehci_readl(ehci, status_reg)); } - // don't show wPortStatus if it's owned by a companion hc - if (!(temp & PORT_OWNER)) { - if (temp & PORT_CONNECT) { - status |= 1 << USB_PORT_FEAT_CONNECTION; - // status may be from integrated TT - status |= ehci_port_speed(ehci, temp); - } - if (temp & PORT_PE) - status |= 1 << USB_PORT_FEAT_ENABLE; - if (temp & (PORT_SUSPEND|PORT_RESUME)) - status |= 1 << USB_PORT_FEAT_SUSPEND; - if (temp & PORT_OC) - status |= 1 << USB_PORT_FEAT_OVER_CURRENT; - if (temp & PORT_RESET) - status |= 1 << USB_PORT_FEAT_RESET; - if (temp & PORT_POWER) - status |= 1 << USB_PORT_FEAT_POWER; + /* transfer dedicated ports to the companion hc */ + if ((temp & PORT_CONNECT) && + test_bit(wIndex, &ehci->companion_ports)) { + temp &= ~PORT_RWC_BITS; + temp |= PORT_OWNER; + ehci_writel(ehci, temp, status_reg); + ehci_dbg(ehci, "port %d --> companion\n", wIndex + 1); + temp = ehci_readl(ehci, status_reg); + } + + /* + * Even if OWNER is set, there's no harm letting khubd + * see the wPortStatus values (they should all be 0 except + * for PORT_POWER anyway). + */ + + if (temp & PORT_CONNECT) { + status |= 1 << USB_PORT_FEAT_CONNECTION; + // status may be from integrated TT + status |= ehci_port_speed(ehci, temp); } + if (temp & PORT_PE) + status |= 1 << USB_PORT_FEAT_ENABLE; + if (temp & (PORT_SUSPEND|PORT_RESUME)) + status |= 1 << USB_PORT_FEAT_SUSPEND; + if (temp & PORT_OC) + status |= 1 << USB_PORT_FEAT_OVER_CURRENT; + if (temp & PORT_RESET) + status |= 1 << USB_PORT_FEAT_RESET; + if (temp & PORT_POWER) + status |= 1 << USB_PORT_FEAT_POWER; #ifndef EHCI_VERBOSE_DEBUG if (status & ~0xffff) /* only if wPortChange is interesting */ @@ -541,7 +670,7 @@ static int ehci_hub_control ( if (!wIndex || wIndex > ports) goto error; wIndex--; - temp = readl (&ehci->regs->port_status [wIndex]); + temp = ehci_readl(ehci, status_reg); if (temp & PORT_OWNER) break; @@ -555,13 +684,12 @@ static int ehci_hub_control ( goto error; if (device_may_wakeup(&hcd->self.root_hub->dev)) temp |= PORT_WAKE_BITS; - writel (temp | PORT_SUSPEND, - &ehci->regs->port_status [wIndex]); + ehci_writel(ehci, temp | PORT_SUSPEND, status_reg); break; case USB_PORT_FEAT_POWER: if (HCS_PPC (ehci->hcs_params)) - writel (temp | PORT_POWER, - &ehci->regs->port_status [wIndex]); + ehci_writel(ehci, temp | PORT_POWER, + status_reg); break; case USB_PORT_FEAT_RESET: if (temp & PORT_RESUME) @@ -589,7 +717,7 @@ static int ehci_hub_control ( ehci->reset_done [wIndex] = jiffies + msecs_to_jiffies (50); } - writel (temp, &ehci->regs->port_status [wIndex]); + ehci_writel(ehci, temp, status_reg); break; /* For downstream facing ports (these): one hub port is put @@ -604,13 +732,13 @@ static int ehci_hub_control ( ehci_quiesce(ehci); ehci_halt(ehci); temp |= selector << 16; - writel (temp, &ehci->regs->port_status [wIndex]); + ehci_writel(ehci, temp, status_reg); break; default: goto error; } - readl (&ehci->regs->command); /* unblock posted writes */ + ehci_readl(ehci, &ehci->regs->command); /* unblock posted writes */ break; default: diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index 4bc7970ba3ef..12edc723ec73 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -38,7 +38,7 @@ static int ehci_pci_reinit(struct ehci_hcd *ehci, struct pci_dev *pdev) if ((temp & (3 << 13)) == (1 << 13)) { temp &= 0x1fff; ehci->debug = ehci_to_hcd(ehci)->regs + temp; - temp = readl(&ehci->debug->control); + temp = ehci_readl(ehci, &ehci->debug->control); ehci_info(ehci, "debug port %d%s\n", HCS_DEBUG_PORT(ehci->hcs_params), (temp & DBGP_ENABLED) @@ -71,8 +71,24 @@ static int ehci_pci_setup(struct usb_hcd *hcd) u32 temp; int retval; + switch (pdev->vendor) { + case PCI_VENDOR_ID_TOSHIBA_2: + /* celleb's companion chip */ + if (pdev->device == 0x01b5) { +#ifdef CONFIG_USB_EHCI_BIG_ENDIAN_MMIO + ehci->big_endian_mmio = 1; +#else + ehci_warn(ehci, + "unsupported big endian Toshiba quirk\n"); +#endif + } + break; + } + ehci->caps = hcd->regs; - ehci->regs = hcd->regs + HC_LENGTH(readl(&ehci->caps->hc_capbase)); + ehci->regs = hcd->regs + + HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase)); + dbg_hcs_params(ehci, "reset"); dbg_hcc_params(ehci, "reset"); @@ -101,7 +117,7 @@ static int ehci_pci_setup(struct usb_hcd *hcd) } /* cache this readonly data; minimize chip reads */ - ehci->hcs_params = readl(&ehci->caps->hcs_params); + ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); retval = ehci_halt(ehci); if (retval) @@ -235,8 +251,8 @@ static int ehci_pci_suspend(struct usb_hcd *hcd, pm_message_t message) rc = -EINVAL; goto bail; } - writel (0, &ehci->regs->intr_enable); - (void)readl(&ehci->regs->intr_enable); + ehci_writel(ehci, 0, &ehci->regs->intr_enable); + (void)ehci_readl(ehci, &ehci->regs->intr_enable); /* make sure snapshot being resumed re-enumerates everything */ if (message.event == PM_EVENT_PRETHAW) { @@ -270,13 +286,13 @@ static int ehci_pci_resume(struct usb_hcd *hcd) /* If CF is still set, we maintained PCI Vaux power. * Just undo the effect of ehci_pci_suspend(). */ - if (readl(&ehci->regs->configured_flag) == FLAG_CF) { + if (ehci_readl(ehci, &ehci->regs->configured_flag) == FLAG_CF) { int mask = INTR_MASK; if (!device_may_wakeup(&hcd->self.root_hub->dev)) mask &= ~STS_PCD; - writel(mask, &ehci->regs->intr_enable); - readl(&ehci->regs->intr_enable); + ehci_writel(ehci, mask, &ehci->regs->intr_enable); + ehci_readl(ehci, &ehci->regs->intr_enable); return 0; } @@ -300,9 +316,9 @@ static int ehci_pci_resume(struct usb_hcd *hcd) /* here we "know" root ports should always stay powered */ ehci_port_power(ehci, 1); - writel(ehci->command, &ehci->regs->command); - writel(FLAG_CF, &ehci->regs->configured_flag); - readl(&ehci->regs->command); /* unblock posted writes */ + ehci_writel(ehci, ehci->command, &ehci->regs->command); + ehci_writel(ehci, FLAG_CF, &ehci->regs->configured_flag); + ehci_readl(ehci, &ehci->regs->command); /* unblock posted writes */ hcd->state = HC_STATE_SUSPENDED; return 0; diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c new file mode 100644 index 000000000000..4d781a2a9807 --- /dev/null +++ b/drivers/usb/host/ehci-ps3.c @@ -0,0 +1,193 @@ +/* + * PS3 EHCI Host Controller driver + * + * Copyright (C) 2006 Sony Computer Entertainment Inc. + * Copyright 2006 Sony Corp. + * + * 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; version 2 of the License. + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <asm/ps3.h> + +static int ps3_ehci_hc_reset(struct usb_hcd *hcd) +{ + int result; + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + + ehci->big_endian_mmio = 1; + + ehci->caps = hcd->regs; + ehci->regs = hcd->regs + HC_LENGTH(ehci_readl(ehci, + &ehci->caps->hc_capbase)); + + dbg_hcs_params(ehci, "reset"); + dbg_hcc_params(ehci, "reset"); + + ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params); + + result = ehci_halt(ehci); + + if (result) + return result; + + result = ehci_init(hcd); + + if (result) + return result; + + ehci_port_power(ehci, 0); + + return result; +} + +static const struct hc_driver ps3_ehci_hc_driver = { + .description = hcd_name, + .product_desc = "PS3 EHCI Host Controller", + .hcd_priv_size = sizeof(struct ehci_hcd), + .irq = ehci_irq, + .flags = HCD_MEMORY | HCD_USB2, + .reset = ps3_ehci_hc_reset, + .start = ehci_run, + .stop = ehci_stop, + .shutdown = ehci_shutdown, + .urb_enqueue = ehci_urb_enqueue, + .urb_dequeue = ehci_urb_dequeue, + .endpoint_disable = ehci_endpoint_disable, + .get_frame_number = ehci_get_frame, + .hub_status_data = ehci_hub_status_data, + .hub_control = ehci_hub_control, +#if defined(CONFIG_PM) + .bus_suspend = ehci_bus_suspend, + .bus_resume = ehci_bus_resume, +#endif +}; + +#if !defined(DEBUG) +#undef dev_dbg +static inline int __attribute__ ((format (printf, 2, 3))) dev_dbg( + const struct device *_dev, const char *fmt, ...) {return 0;} +#endif + + +static int ps3_ehci_sb_probe(struct ps3_system_bus_device *dev) +{ + int result; + struct usb_hcd *hcd; + unsigned int virq; + static u64 dummy_mask = DMA_32BIT_MASK; + + if (usb_disabled()) { + result = -ENODEV; + goto fail_start; + } + + result = ps3_mmio_region_create(dev->m_region); + + if (result) { + dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n", + __func__, __LINE__); + result = -EPERM; + goto fail_mmio; + } + + dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__, + __LINE__, dev->m_region->lpar_addr); + + result = ps3_alloc_io_irq(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq); + + if (result) { + dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n", + __func__, __LINE__, virq); + result = -EPERM; + goto fail_irq; + } + + dev->core.power.power_state = PMSG_ON; + dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */ + + hcd = usb_create_hcd(&ps3_ehci_hc_driver, &dev->core, dev->core.bus_id); + + if (!hcd) { + dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__, + __LINE__); + result = -ENOMEM; + goto fail_create_hcd; + } + + hcd->rsrc_start = dev->m_region->lpar_addr; + hcd->rsrc_len = dev->m_region->len; + hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len); + + if (!hcd->regs) { + dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__, + __LINE__); + result = -EPERM; + goto fail_ioremap; + } + + dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__, + (unsigned long)hcd->rsrc_start); + dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len %lxh\n", __func__, __LINE__, + (unsigned long)hcd->rsrc_len); + dev_dbg(&dev->core, "%s:%d: hcd->regs %lxh\n", __func__, __LINE__, + (unsigned long)hcd->regs); + dev_dbg(&dev->core, "%s:%d: virq %lu\n", __func__, __LINE__, + (unsigned long)virq); + + ps3_system_bus_set_driver_data(dev, hcd); + + result = usb_add_hcd(hcd, virq, IRQF_DISABLED); + + if (result) { + dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n", + __func__, __LINE__, result); + goto fail_add_hcd; + } + + return result; + +fail_add_hcd: + iounmap(hcd->regs); +fail_ioremap: + usb_put_hcd(hcd); +fail_create_hcd: + ps3_free_io_irq(virq); +fail_irq: + ps3_free_mmio_region(dev->m_region); +fail_mmio: +fail_start: + return result; +} + +static int ps3_ehci_sb_remove(struct ps3_system_bus_device *dev) +{ + struct usb_hcd *hcd = + (struct usb_hcd *)ps3_system_bus_get_driver_data(dev); + + usb_put_hcd(hcd); + ps3_system_bus_set_driver_data(dev, NULL); + + return 0; +} + +MODULE_ALIAS("ps3-ehci"); + +static struct ps3_system_bus_driver ps3_ehci_sb_driver = { + .match_id = PS3_MATCH_ID_EHCI, + .core = { + .name = "ps3-ehci-driver", + }, + .probe = ps3_ehci_sb_probe, + .remove = ps3_ehci_sb_remove, +}; diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c index 62e46dc60e86..e7fbbd00e7cd 100644 --- a/drivers/usb/host/ehci-q.c +++ b/drivers/usb/host/ehci-q.c @@ -789,13 +789,14 @@ static void qh_link_async (struct ehci_hcd *ehci, struct ehci_qh *qh) head = ehci->async; timer_action_done (ehci, TIMER_ASYNC_OFF); if (!head->qh_next.qh) { - u32 cmd = readl (&ehci->regs->command); + u32 cmd = ehci_readl(ehci, &ehci->regs->command); if (!(cmd & CMD_ASE)) { /* in case a clear of CMD_ASE didn't take yet */ - (void) handshake (&ehci->regs->status, STS_ASS, 0, 150); + (void)handshake(ehci, &ehci->regs->status, + STS_ASS, 0, 150); cmd |= CMD_ASE | CMD_RUN; - writel (cmd, &ehci->regs->command); + ehci_writel(ehci, cmd, &ehci->regs->command); ehci_to_hcd(ehci)->state = HC_STATE_RUNNING; /* posted write need not be known to HC yet ... */ } @@ -1007,7 +1008,7 @@ static void end_unlink_async (struct ehci_hcd *ehci) static void start_unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh) { - int cmd = readl (&ehci->regs->command); + int cmd = ehci_readl(ehci, &ehci->regs->command); struct ehci_qh *prev; #ifdef DEBUG @@ -1025,7 +1026,8 @@ static void start_unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh) if (ehci_to_hcd(ehci)->state != HC_STATE_HALT && !ehci->reclaim) { /* ... and CMD_IAAD clear */ - writel (cmd & ~CMD_ASE, &ehci->regs->command); + ehci_writel(ehci, cmd & ~CMD_ASE, + &ehci->regs->command); wmb (); // handshake later, if we need to timer_action_done (ehci, TIMER_ASYNC_OFF); @@ -1054,8 +1056,8 @@ static void start_unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh) ehci->reclaim_ready = 0; cmd |= CMD_IAAD; - writel (cmd, &ehci->regs->command); - (void) readl (&ehci->regs->command); + ehci_writel(ehci, cmd, &ehci->regs->command); + (void)ehci_readl(ehci, &ehci->regs->command); timer_action (ehci, TIMER_IAA_WATCHDOG); } diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c index 65c402a0fa7a..7b5ae7111f23 100644 --- a/drivers/usb/host/ehci-sched.c +++ b/drivers/usb/host/ehci-sched.c @@ -433,20 +433,20 @@ static int enable_periodic (struct ehci_hcd *ehci) /* did clearing PSE did take effect yet? * takes effect only at frame boundaries... */ - status = handshake (&ehci->regs->status, STS_PSS, 0, 9 * 125); + status = handshake(ehci, &ehci->regs->status, STS_PSS, 0, 9 * 125); if (status != 0) { ehci_to_hcd(ehci)->state = HC_STATE_HALT; return status; } - cmd = readl (&ehci->regs->command) | CMD_PSE; - writel (cmd, &ehci->regs->command); + cmd = ehci_readl(ehci, &ehci->regs->command) | CMD_PSE; + ehci_writel(ehci, cmd, &ehci->regs->command); /* posted write ... PSS happens later */ ehci_to_hcd(ehci)->state = HC_STATE_RUNNING; /* make sure ehci_work scans these */ - ehci->next_uframe = readl (&ehci->regs->frame_index) - % (ehci->periodic_size << 3); + ehci->next_uframe = ehci_readl(ehci, &ehci->regs->frame_index) + % (ehci->periodic_size << 3); return 0; } @@ -458,14 +458,14 @@ static int disable_periodic (struct ehci_hcd *ehci) /* did setting PSE not take effect yet? * takes effect only at frame boundaries... */ - status = handshake (&ehci->regs->status, STS_PSS, STS_PSS, 9 * 125); + status = handshake(ehci, &ehci->regs->status, STS_PSS, STS_PSS, 9 * 125); if (status != 0) { ehci_to_hcd(ehci)->state = HC_STATE_HALT; return status; } - cmd = readl (&ehci->regs->command) & ~CMD_PSE; - writel (cmd, &ehci->regs->command); + cmd = ehci_readl(ehci, &ehci->regs->command) & ~CMD_PSE; + ehci_writel(ehci, cmd, &ehci->regs->command); /* posted write ... */ ehci->next_uframe = -1; @@ -1336,7 +1336,7 @@ iso_stream_schedule ( goto fail; } - now = readl (&ehci->regs->frame_index) % mod; + now = ehci_readl(ehci, &ehci->regs->frame_index) % mod; /* when's the last uframe this urb could start? */ max = now + mod; @@ -2088,7 +2088,7 @@ scan_periodic (struct ehci_hcd *ehci) */ now_uframe = ehci->next_uframe; if (HC_IS_RUNNING (ehci_to_hcd(ehci)->state)) - clock = readl (&ehci->regs->frame_index); + clock = ehci_readl(ehci, &ehci->regs->frame_index); else clock = now_uframe + mod - 1; clock %= mod; @@ -2213,7 +2213,7 @@ restart: if (!HC_IS_RUNNING (ehci_to_hcd(ehci)->state)) break; ehci->next_uframe = now_uframe; - now = readl (&ehci->regs->frame_index) % mod; + now = ehci_readl(ehci, &ehci->regs->frame_index) % mod; if (now_uframe == now) break; diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h index 74dbc6c8228f..46fa57a520d0 100644 --- a/drivers/usb/host/ehci.h +++ b/drivers/usb/host/ehci.h @@ -74,7 +74,11 @@ struct ehci_hcd { /* one per controller */ /* per root hub port */ unsigned long reset_done [EHCI_MAX_ROOT_PORTS]; - unsigned long bus_suspended; + /* bit vectors (one bit per port) */ + unsigned long bus_suspended; /* which ports were + already suspended at the start of a bus suspend */ + unsigned long companion_ports; /* which ports are + dedicated to the companion controller */ /* per-HC memory pools (could be per-bus, but ...) */ struct dma_pool *qh_pool; /* qh per active urb */ @@ -92,6 +96,7 @@ struct ehci_hcd { /* one per controller */ unsigned is_tdi_rh_tt:1; /* TDI roothub with TT */ unsigned no_selective_suspend:1; unsigned has_fsl_port_bug:1; /* FreeScale */ + unsigned big_endian_mmio:1; u8 sbrn; /* packed release number */ @@ -651,6 +656,45 @@ ehci_port_speed(struct ehci_hcd *ehci, unsigned int portsc) #define ehci_has_fsl_portno_bug(e) (0) #endif +/* + * While most USB host controllers implement their registers in + * little-endian format, a minority (celleb companion chip) implement + * them in big endian format. + * + * This attempts to support either format at compile time without a + * runtime penalty, or both formats with the additional overhead + * of checking a flag bit. + */ + +#ifdef CONFIG_USB_EHCI_BIG_ENDIAN_MMIO +#define ehci_big_endian_mmio(e) ((e)->big_endian_mmio) +#else +#define ehci_big_endian_mmio(e) 0 +#endif + +static inline unsigned int ehci_readl (const struct ehci_hcd *ehci, + __u32 __iomem * regs) +{ +#ifdef CONFIG_USB_EHCI_BIG_ENDIAN_MMIO + return ehci_big_endian_mmio(ehci) ? + readl_be(regs) : + readl(regs); +#else + return readl(regs); +#endif +} + +static inline void ehci_writel (const struct ehci_hcd *ehci, + const unsigned int val, __u32 __iomem *regs) +{ +#ifdef CONFIG_USB_EHCI_BIG_ENDIAN_MMIO + ehci_big_endian_mmio(ehci) ? + writel_be(val, regs) : + writel(val, regs); +#else + writel(val, regs); +#endif +} /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/host/hc_crisv10.c b/drivers/usb/host/hc_crisv10.c index 9325e46a68c0..282d82efc0b0 100644 --- a/drivers/usb/host/hc_crisv10.c +++ b/drivers/usb/host/hc_crisv10.c @@ -365,7 +365,7 @@ static inline struct urb *urb_list_first(int epid) /* Adds an urb_entry last in the list for this epid. */ static inline void urb_list_add(struct urb *urb, int epid) { - urb_entry_t *urb_entry = (urb_entry_t *)kmalloc(sizeof(urb_entry_t), KMALLOC_FLAG); + urb_entry_t *urb_entry = kmalloc(sizeof(urb_entry_t), KMALLOC_FLAG); assert(urb_entry); urb_entry->urb = urb; diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index b466581beb4a..930346487278 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -170,7 +170,6 @@ static int usb_hcd_at91_remove(struct usb_hcd *hcd, at91_stop_hc(pdev); iounmap(hcd->regs); release_mem_region(hcd->rsrc_start, hcd->rsrc_len); - disable_irq_wake(hcd->irq); clk_put(fclk); clk_put(iclk); @@ -187,7 +186,6 @@ ohci_at91_start (struct usb_hcd *hcd) { struct at91_usbh_data *board = hcd->self.controller->platform_data; struct ohci_hcd *ohci = hcd_to_ohci (hcd); - struct usb_device *root = hcd->self.root_hub; int ret; if ((ret = ohci_init(ohci)) < 0) @@ -221,7 +219,7 @@ static const struct hc_driver ohci_at91_hc_driver = { */ .start = ohci_at91_start, .stop = ohci_stop, - .shutdown = ohci_shutdown, + .shutdown = ohci_shutdown, /* * managing i/o requests and associated device resources @@ -272,8 +270,6 @@ ohci_hcd_at91_drv_suspend(struct platform_device *pdev, pm_message_t mesg) if (device_may_wakeup(&pdev->dev)) enable_irq_wake(hcd->irq); - else - disable_irq_wake(hcd->irq); /* * The integrated transceivers seem unable to notice disconnect, @@ -294,6 +290,11 @@ ohci_hcd_at91_drv_suspend(struct platform_device *pdev, pm_message_t mesg) static int ohci_hcd_at91_drv_resume(struct platform_device *pdev) { + struct usb_hcd *hcd = platform_get_drvdata(pdev); + + if (device_may_wakeup(&pdev->dev)) + disable_irq_wake(hcd->irq); + if (!clocked) { clk_enable(iclk); clk_enable(fclk); @@ -321,18 +322,3 @@ static struct platform_driver ohci_hcd_at91_driver = { }, }; -static int __init ohci_hcd_at91_init (void) -{ - if (usb_disabled()) - return -ENODEV; - - return platform_driver_register(&ohci_hcd_at91_driver); -} - -static void __exit ohci_hcd_at91_cleanup (void) -{ - platform_driver_unregister(&ohci_hcd_at91_driver); -} - -module_init (ohci_hcd_at91_init); -module_exit (ohci_hcd_at91_cleanup); diff --git a/drivers/usb/host/ohci-au1xxx.c b/drivers/usb/host/ohci-au1xxx.c index 24e23c5783d8..663a0600b6e7 100644 --- a/drivers/usb/host/ohci-au1xxx.c +++ b/drivers/usb/host/ohci-au1xxx.c @@ -269,7 +269,7 @@ static const struct hc_driver ohci_au1xxx_hc_driver = { */ .start = ohci_au1xxx_start, .stop = ohci_stop, - .shutdown = ohci_shutdown, + .shutdown = ohci_shutdown, /* * managing i/o requests and associated device resources @@ -336,7 +336,7 @@ static int ohci_hcd_au1xxx_drv_resume(struct platform_device *dev) static struct platform_driver ohci_hcd_au1xxx_driver = { .probe = ohci_hcd_au1xxx_drv_probe, .remove = ohci_hcd_au1xxx_drv_remove, - .shutdown = usb_hcd_platform_shutdown, + .shutdown = usb_hcd_platform_shutdown, /*.suspend = ohci_hcd_au1xxx_drv_suspend, */ /*.resume = ohci_hcd_au1xxx_drv_resume, */ .driver = { @@ -345,19 +345,3 @@ static struct platform_driver ohci_hcd_au1xxx_driver = { }, }; -static int __init ohci_hcd_au1xxx_init (void) -{ - pr_debug (DRIVER_INFO " (Au1xxx)"); - pr_debug ("block sizes: ed %d td %d\n", - sizeof (struct ed), sizeof (struct td)); - - return platform_driver_register(&ohci_hcd_au1xxx_driver); -} - -static void __exit ohci_hcd_au1xxx_cleanup (void) -{ - platform_driver_unregister(&ohci_hcd_au1xxx_driver); -} - -module_init (ohci_hcd_au1xxx_init); -module_exit (ohci_hcd_au1xxx_cleanup); diff --git a/drivers/usb/host/ohci-dbg.c b/drivers/usb/host/ohci-dbg.c index 0f47a57dac28..273d5ddb72be 100644 --- a/drivers/usb/host/ohci-dbg.c +++ b/drivers/usb/host/ohci-dbg.c @@ -16,7 +16,7 @@ case PIPE_CONTROL: temp = "ctrl"; break; \ case PIPE_BULK: temp = "bulk"; break; \ case PIPE_INTERRUPT: temp = "intr"; break; \ - default: temp = "isoc"; break; \ + default: temp = "isoc"; break; \ }; temp;}) #define pipestring(pipe) edstring(usb_pipetype(pipe)) @@ -205,13 +205,13 @@ ohci_dump_status (struct ohci_hcd *controller, char **next, unsigned *size) (temp & RH_PS_PSSC) ? " PSSC" : "", \ (temp & RH_PS_PESC) ? " PESC" : "", \ (temp & RH_PS_CSC) ? " CSC" : "", \ - \ + \ (temp & RH_PS_LSDA) ? " LSDA" : "", \ (temp & RH_PS_PPS) ? " PPS" : "", \ (temp & RH_PS_PRS) ? " PRS" : "", \ (temp & RH_PS_POCI) ? " POCI" : "", \ (temp & RH_PS_PSS) ? " PSS" : "", \ - \ + \ (temp & RH_PS_PES) ? " PES" : "", \ (temp & RH_PS_CCS) ? " CCS" : "" \ ); @@ -563,7 +563,7 @@ show_periodic (struct class_device *class_dev, char *buf) (info & ED_SKIP) ? " K" : "", (ed->hwHeadP & cpu_to_hc32(ohci, ED_H)) ? - " H" : ""); + " H" : ""); size -= temp; next += temp; diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c index 1bf5e7a4e735..44c60fba76e1 100644 --- a/drivers/usb/host/ohci-ep93xx.c +++ b/drivers/usb/host/ohci-ep93xx.c @@ -169,7 +169,7 @@ static int ohci_hcd_ep93xx_drv_remove(struct platform_device *pdev) static int ohci_hcd_ep93xx_drv_suspend(struct platform_device *pdev, pm_message_t state) { struct usb_hcd *hcd = platform_get_drvdata(pdev); - struct ochi_hcd *ohci = hcd_to_ohci(hcd); + struct ohci_hcd *ohci = hcd_to_ohci(hcd); if (time_before(jiffies, ohci->next_statechange)) msleep(5); @@ -204,7 +204,7 @@ static int ohci_hcd_ep93xx_drv_resume(struct platform_device *pdev) static struct platform_driver ohci_hcd_ep93xx_driver = { .probe = ohci_hcd_ep93xx_drv_probe, .remove = ohci_hcd_ep93xx_drv_remove, - .shutdown = usb_hcd_platform_shutdown, + .shutdown = usb_hcd_platform_shutdown, #ifdef CONFIG_PM .suspend = ohci_hcd_ep93xx_drv_suspend, .resume = ohci_hcd_ep93xx_drv_resume, @@ -214,15 +214,3 @@ static struct platform_driver ohci_hcd_ep93xx_driver = { }, }; -static int __init ohci_hcd_ep93xx_init(void) -{ - return platform_driver_register(&ohci_hcd_ep93xx_driver); -} - -static void __exit ohci_hcd_ep93xx_cleanup(void) -{ - platform_driver_unregister(&ohci_hcd_ep93xx_driver); -} - -module_init(ohci_hcd_ep93xx_init); -module_exit(ohci_hcd_ep93xx_cleanup); diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c index b28a9b602066..fa6a7ceaa0db 100644 --- a/drivers/usb/host/ohci-hcd.c +++ b/drivers/usb/host/ohci-hcd.c @@ -3,77 +3,21 @@ * * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> * (C) Copyright 2000-2004 David Brownell <dbrownell@users.sourceforge.net> - * + * * [ Initialisation is based on Linus' ] * [ uhci code and gregs ohci fragments ] * [ (C) Copyright 1999 Linus Torvalds ] * [ (C) Copyright 1999 Gregory P. Smith] - * - * + * + * * OHCI is the main "non-Intel/VIA" standard for USB 1.1 host controller * interfaces (though some non-x86 Intel chips use it). It supports * smarter hardware than UHCI. A download link for the spec available * through the http://www.usb.org website. * - * History: - * - * 2004/03/24 LH7A404 support (Durgesh Pattamatta & Marc Singer) - * 2004/02/04 use generic dma_* functions instead of pci_* (dsaxena@plexity.net) - * 2003/02/24 show registers in sysfs (Kevin Brosius) - * - * 2002/09/03 get rid of ed hashtables, rework periodic scheduling and - * bandwidth accounting; if debugging, show schedules in driverfs - * 2002/07/19 fixes to management of ED and schedule state. - * 2002/06/09 SA-1111 support (Christopher Hoover) - * 2002/06/01 remember frame when HC won't see EDs any more; use that info - * to fix urb unlink races caused by interrupt latency assumptions; - * minor ED field and function naming updates - * 2002/01/18 package as a patch for 2.5.3; this should match the - * 2.4.17 kernel modulo some bugs being fixed. - * - * 2001/10/18 merge pmac cleanup (Benjamin Herrenschmidt) and bugfixes - * from post-2.4.5 patches. - * 2001/09/20 URB_ZERO_PACKET support; hcca_dma portability, OPTi warning - * 2001/09/07 match PCI PM changes, errnos from Linus' tree - * 2001/05/05 fork 2.4.5 version into "hcd" framework, cleanup, simplify; - * pbook pci quirks gone (please fix pbook pci sw!) (db) - * - * 2001/04/08 Identify version on module load (gb) - * 2001/03/24 td/ed hashing to remove bus_to_virt (Steve Longerbeam); - pci_map_single (db) - * 2001/03/21 td and dev/ed allocation uses new pci_pool API (db) - * 2001/03/07 hcca allocation uses pci_alloc_consistent (Steve Longerbeam) - * - * 2000/09/26 fixed races in removing the private portion of the urb - * 2000/09/07 disable bulk and control lists when unlinking the last - * endpoint descriptor in order to avoid unrecoverable errors on - * the Lucent chips. (rwc@sgi) - * 2000/08/29 use bandwidth claiming hooks (thanks Randy!), fix some - * urb unlink probs, indentation fixes - * 2000/08/11 various oops fixes mostly affecting iso and cleanup from - * device unplugs. - * 2000/06/28 use PCI hotplug framework, for better power management - * and for Cardbus support (David Brownell) - * 2000/earlier: fixes for NEC/Lucent chips; suspend/resume handling - * when the controller loses power; handle UE; cleanup; ... - * - * v5.2 1999/12/07 URB 3rd preview, - * v5.1 1999/11/30 URB 2nd preview, cpia, (usb-scsi) - * v5.0 1999/11/22 URB Technical preview, Paul Mackerras powerbook susp/resume - * i386: HUB, Keyboard, Mouse, Printer - * - * v4.3 1999/10/27 multiple HCs, bulk_request - * v4.2 1999/09/05 ISO API alpha, new dev alloc, neg Error-codes - * v4.1 1999/08/27 Randy Dunlap's - ISO API first impl. - * v4.0 1999/08/18 - * v3.0 1999/06/25 - * v2.1 1999/05/09 code clean up - * v2.0 1999/05/04 - * v1.0 1999/04/27 initial release - * * This file is licenced under the GPL. */ - + #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/pci.h> @@ -89,7 +33,7 @@ #include <linux/list.h> #include <linux/usb.h> #include <linux/usb/otg.h> -#include <linux/dma-mapping.h> +#include <linux/dma-mapping.h> #include <linux/dmapool.h> #include <linux/reboot.h> @@ -183,11 +127,11 @@ static int ohci_urb_enqueue ( int i, size = 0; unsigned long flags; int retval = 0; - + #ifdef OHCI_VERBOSE_DEBUG urb_print (urb, "SUB", usb_pipein (pipe)); #endif - + /* every endpoint has a ed, locate and maybe (re)initialize it */ if (! (ed = ed_get (ohci, ep, urb->dev, pipe, urb->interval))) return -ENOMEM; @@ -232,7 +176,7 @@ static int ohci_urb_enqueue ( memset (urb_priv, 0, sizeof (urb_priv_t) + size * sizeof (struct td *)); INIT_LIST_HEAD (&urb_priv->pending); urb_priv->length = size; - urb_priv->ed = ed; + urb_priv->ed = ed; /* allocate the TDs (deferring hash chain updates) */ for (i = 0; i < size; i++) { @@ -242,7 +186,7 @@ static int ohci_urb_enqueue ( urb_free_priv (ohci, urb_priv); return -ENOMEM; } - } + } spin_lock_irqsave (&ohci->lock, flags); @@ -313,13 +257,13 @@ static int ohci_urb_dequeue (struct usb_hcd *hcd, struct urb *urb) { struct ohci_hcd *ohci = hcd_to_ohci (hcd); unsigned long flags; - + #ifdef OHCI_VERBOSE_DEBUG urb_print (urb, "UNLINK", 1); -#endif +#endif spin_lock_irqsave (&ohci->lock, flags); - if (HC_IS_RUNNING(hcd->state)) { + if (HC_IS_RUNNING(hcd->state)) { urb_priv_t *urb_priv; /* Unless an IRQ completed the unlink while it was being @@ -512,11 +456,11 @@ static int ohci_init (struct ohci_hcd *ohci) /* Start an OHCI controller, set the BUS operational * resets USB and controller - * enable interrupts + * enable interrupts */ static int ohci_run (struct ohci_hcd *ohci) { - u32 mask, temp; + u32 mask, temp; int first = ohci->fminterval == 0; struct usb_hcd *hcd = ohci_to_hcd(ohci); @@ -534,7 +478,7 @@ static int ohci_run (struct ohci_hcd *ohci) /* also: power/overcurrent flags in roothub.a */ } - /* Reset USB nearly "by the book". RemoteWakeupConnected was + /* Reset USB nearly "by the book". RemoteWakeupConnected was * saved if boot firmware (BIOS/SMM/...) told us it's connected, * or if bus glue did the same (e.g. for PCI add-in cards with * PCI PM support). @@ -765,9 +709,9 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd) dl_done_list (ohci); spin_unlock (&ohci->lock); if (HC_IS_RUNNING(hcd->state)) - ohci_writel (ohci, OHCI_INTR_WDH, ®s->intrenable); + ohci_writel (ohci, OHCI_INTR_WDH, ®s->intrenable); } - + /* could track INTR_SO to reduce available PCI/... bandwidth */ /* handle any pending URB/ED unlinks, leaving INTR_SF enabled @@ -778,12 +722,12 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd) finish_unlinks (ohci, ohci_frame_no(ohci)); if ((ints & OHCI_INTR_SF) != 0 && !ohci->ed_rm_list && HC_IS_RUNNING(hcd->state)) - ohci_writel (ohci, OHCI_INTR_SF, ®s->intrdisable); + ohci_writel (ohci, OHCI_INTR_SF, ®s->intrdisable); spin_unlock (&ohci->lock); if (HC_IS_RUNNING(hcd->state)) { ohci_writel (ohci, ints, ®s->intrstatus); - ohci_writel (ohci, OHCI_INTR_MIE, ®s->intrenable); + ohci_writel (ohci, OHCI_INTR_MIE, ®s->intrenable); // flush those writes (void) ohci_readl (ohci, &ohci->regs->control); } @@ -794,7 +738,7 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd) /*-------------------------------------------------------------------------*/ static void ohci_stop (struct usb_hcd *hcd) -{ +{ struct ohci_hcd *ohci = hcd_to_ohci (hcd); ohci_dbg (ohci, "stop %s controller (state 0x%02x)\n", @@ -812,8 +756,8 @@ static void ohci_stop (struct usb_hcd *hcd) remove_debug_files (ohci); ohci_mem_cleanup (ohci); if (ohci->hcca) { - dma_free_coherent (hcd->self.controller, - sizeof *ohci->hcca, + dma_free_coherent (hcd->self.controller, + sizeof *ohci->hcca, ohci->hcca, ohci->hcca_dma); ohci->hcca = NULL; ohci->hcca_dma = 0; @@ -836,7 +780,7 @@ static int ohci_restart (struct ohci_hcd *ohci) * recycle any "live" eds/tds (and urbs) right away. * later, khubd disconnect processing will recycle the other state, * (either as disconnect/reconnect, or maybe someday as a reset). - */ + */ spin_lock_irq(&ohci->lock); disable (ohci); usb_root_hub_lost_power(ohci_to_hcd(ohci)->self.root_hub); @@ -875,11 +819,11 @@ static int ohci_restart (struct ohci_hcd *ohci) /* empty the interrupt branches */ for (i = 0; i < NUM_INTS; i++) ohci->load [i] = 0; for (i = 0; i < NUM_INTS; i++) ohci->hcca->int_table [i] = 0; - + /* no EDs to remove */ ohci->ed_rm_list = NULL; - /* empty control and bulk lists */ + /* empty control and bulk lists */ ohci->ed_controltail = NULL; ohci->ed_bulktail = NULL; @@ -911,59 +855,167 @@ MODULE_LICENSE ("GPL"); #ifdef CONFIG_PCI #include "ohci-pci.c" +#define PCI_DRIVER ohci_pci_driver #endif #ifdef CONFIG_SA1111 #include "ohci-sa1111.c" +#define SA1111_DRIVER ohci_hcd_sa1111_driver #endif #ifdef CONFIG_ARCH_S3C2410 #include "ohci-s3c2410.c" +#define PLATFORM_DRIVER ohci_hcd_s3c2410_driver #endif #ifdef CONFIG_ARCH_OMAP #include "ohci-omap.c" +#define PLATFORM_DRIVER ohci_hcd_omap_driver #endif #ifdef CONFIG_ARCH_LH7A404 #include "ohci-lh7a404.c" +#define PLATFORM_DRIVER ohci_hcd_lh7a404_driver #endif #ifdef CONFIG_PXA27x #include "ohci-pxa27x.c" +#define PLATFORM_DRIVER ohci_hcd_pxa27x_driver #endif #ifdef CONFIG_ARCH_EP93XX #include "ohci-ep93xx.c" +#define PLATFORM_DRIVER ohci_hcd_ep93xx_driver #endif #ifdef CONFIG_SOC_AU1X00 #include "ohci-au1xxx.c" +#define PLATFORM_DRIVER ohci_hcd_au1xxx_driver +#endif + +#ifdef CONFIG_PNX8550 +#include "ohci-pnx8550.c" +#define PLATFORM_DRIVER ohci_hcd_pnx8550_driver #endif #ifdef CONFIG_USB_OHCI_HCD_PPC_SOC #include "ohci-ppc-soc.c" +#define PLATFORM_DRIVER ohci_hcd_ppc_soc_driver #endif #ifdef CONFIG_ARCH_AT91 #include "ohci-at91.c" +#define PLATFORM_DRIVER ohci_hcd_at91_driver #endif #ifdef CONFIG_ARCH_PNX4008 #include "ohci-pnx4008.c" +#define PLATFORM_DRIVER usb_hcd_pnx4008_driver #endif -#if !(defined(CONFIG_PCI) \ - || defined(CONFIG_SA1111) \ - || defined(CONFIG_ARCH_S3C2410) \ - || defined(CONFIG_ARCH_OMAP) \ - || defined (CONFIG_ARCH_LH7A404) \ - || defined (CONFIG_PXA27x) \ - || defined (CONFIG_ARCH_EP93XX) \ - || defined (CONFIG_SOC_AU1X00) \ - || defined (CONFIG_USB_OHCI_HCD_PPC_SOC) \ - || defined (CONFIG_ARCH_AT91) \ - || defined (CONFIG_ARCH_PNX4008) \ - ) + +#ifdef CONFIG_USB_OHCI_HCD_PPC_OF +#include "ohci-ppc-of.c" +#define OF_PLATFORM_DRIVER ohci_hcd_ppc_of_driver +#endif + +#ifdef CONFIG_PPC_PS3 +#include "ohci-ps3.c" +#define PS3_SYSTEM_BUS_DRIVER ps3_ohci_sb_driver +#endif + +#if !defined(PCI_DRIVER) && \ + !defined(PLATFORM_DRIVER) && \ + !defined(OF_PLATFORM_DRIVER) && \ + !defined(SA1111_DRIVER) && \ + !defined(PS3_SYSTEM_BUS_DRIVER) #error "missing bus glue for ohci-hcd" #endif + +static int __init ohci_hcd_mod_init(void) +{ + int retval = 0; + + if (usb_disabled()) + return -ENODEV; + + printk (KERN_DEBUG "%s: " DRIVER_INFO "\n", hcd_name); + pr_debug ("%s: block sizes: ed %Zd td %Zd\n", hcd_name, + sizeof (struct ed), sizeof (struct td)); + +#ifdef PS3_SYSTEM_BUS_DRIVER + retval = ps3_system_bus_driver_register(&PS3_SYSTEM_BUS_DRIVER); + if (retval < 0) + goto error_ps3; +#endif + +#ifdef PLATFORM_DRIVER + retval = platform_driver_register(&PLATFORM_DRIVER); + if (retval < 0) + goto error_platform; +#endif + +#ifdef OF_PLATFORM_DRIVER + retval = of_register_platform_driver(&OF_PLATFORM_DRIVER); + if (retval < 0) + goto error_of_platform; +#endif + +#ifdef SA1111_DRIVER + retval = sa1111_driver_register(&SA1111_DRIVER); + if (retval < 0) + goto error_sa1111; +#endif + +#ifdef PCI_DRIVER + retval = pci_register_driver(&PCI_DRIVER); + if (retval < 0) + goto error_pci; +#endif + + return retval; + + /* Error path */ +#ifdef PCI_DRIVER + error_pci: +#endif +#ifdef SA1111_DRIVER + sa1111_driver_unregister(&SA1111_DRIVER); + error_sa1111: +#endif +#ifdef OF_PLATFORM_DRIVER + of_unregister_platform_driver(&OF_PLATFORM_DRIVER); + error_of_platform: +#endif +#ifdef PLATFORM_DRIVER + platform_driver_unregister(&PLATFORM_DRIVER); + error_platform: +#endif +#ifdef PS3_SYSTEM_BUS_DRIVER + ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER); + error_ps3: +#endif + return retval; +} +module_init(ohci_hcd_mod_init); + +static void __exit ohci_hcd_mod_exit(void) +{ +#ifdef PCI_DRIVER + pci_unregister_driver(&PCI_DRIVER); +#endif +#ifdef SA1111_DRIVER + sa1111_driver_unregister(&SA1111_DRIVER); +#endif +#ifdef OF_PLATFORM_DRIVER + of_unregister_platform_driver(&OF_PLATFORM_DRIVER); +#endif +#ifdef PLATFORM_DRIVER + platform_driver_unregister(&PLATFORM_DRIVER); +#endif +#ifdef PS3_SYSTEM_BUS_DRIVER + ps3_system_bus_driver_unregister(&PS3_SYSTEM_BUS_DRIVER); +#endif +} +module_exit(ohci_hcd_mod_exit); + diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c index 2441642cb7b4..216c9c9d4d6d 100644 --- a/drivers/usb/host/ohci-hub.c +++ b/drivers/usb/host/ohci-hub.c @@ -1,9 +1,9 @@ /* * OHCI HCD (Host Controller Driver) for USB. - * + * * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> * (C) Copyright 2000-2004 David Brownell <dbrownell@users.sourceforge.net> - * + * * This file is licenced under GPL */ @@ -23,13 +23,13 @@ (temp & RH_PS_PSSC) ? " PSSC" : "", \ (temp & RH_PS_PESC) ? " PESC" : "", \ (temp & RH_PS_CSC) ? " CSC" : "", \ - \ + \ (temp & RH_PS_LSDA) ? " LSDA" : "", \ (temp & RH_PS_PPS) ? " PPS" : "", \ (temp & RH_PS_PRS) ? " PRS" : "", \ (temp & RH_PS_POCI) ? " POCI" : "", \ (temp & RH_PS_PSS) ? " PSS" : "", \ - \ + \ (temp & RH_PS_PES) ? " PES" : "", \ (temp & RH_PS_CCS) ? " CCS" : "" \ ); @@ -484,7 +484,7 @@ ohci_hub_descriptor ( temp = 0; if (rh & RH_A_NPS) /* no power switching? */ temp |= 0x0002; - if (rh & RH_A_PSM) /* per-port power switching? */ + if (rh & RH_A_PSM) /* per-port power switching? */ temp |= 0x0001; if (rh & RH_A_NOCP) /* no overcurrent reporting? */ temp |= 0x0010; @@ -555,7 +555,7 @@ static void start_hnp(struct ohci_hcd *ohci); #define tick_before(t1,t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0) /* called from some task, normally khubd */ -static inline void root_port_reset (struct ohci_hcd *ohci, unsigned port) +static inline int root_port_reset (struct ohci_hcd *ohci, unsigned port) { __hc32 __iomem *portstat = &ohci->regs->roothub.portstatus [port]; u32 temp; @@ -570,10 +570,13 @@ static inline void root_port_reset (struct ohci_hcd *ohci, unsigned port) /* spin until any current reset finishes */ for (;;) { temp = ohci_readl (ohci, portstat); + /* handle e.g. CardBus eject */ + if (temp == ~(u32)0) + return -ESHUTDOWN; if (!(temp & RH_PS_PRS)) break; udelay (500); - } + } if (!(temp & RH_PS_CCS)) break; @@ -586,6 +589,8 @@ static inline void root_port_reset (struct ohci_hcd *ohci, unsigned port) now = ohci_readl(ohci, &ohci->regs->fmnumber); } while (tick_before(now, reset_done)); /* caller synchronizes using PRSC */ + + return 0; } static int ohci_hub_control ( @@ -702,7 +707,7 @@ static int ohci_hub_control ( &ohci->regs->roothub.portstatus [wIndex]); break; case USB_PORT_FEAT_RESET: - root_port_reset (ohci, wIndex); + retval = root_port_reset (ohci, wIndex); break; default: goto error; diff --git a/drivers/usb/host/ohci-lh7a404.c b/drivers/usb/host/ohci-lh7a404.c index e121d97ed91c..4a043abd85ea 100644 --- a/drivers/usb/host/ohci-lh7a404.c +++ b/drivers/usb/host/ohci-lh7a404.c @@ -38,7 +38,7 @@ static void lh7a404_start_hc(struct platform_device *dev) CSC_PWRCNT |= CSC_PWRCNT_USBH_EN; /* Enable clock */ udelay(1000); USBH_CMDSTATUS = OHCI_HCR; - + printk(KERN_DEBUG __FILE__ ": Clock to USB host has been enabled \n"); } @@ -89,7 +89,7 @@ int usb_hcd_lh7a404_probe (const struct hc_driver *driver, retval = -EBUSY; goto err1; } - + hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); if (!hcd->regs) { pr_debug("ioremap failed"); @@ -174,7 +174,7 @@ static const struct hc_driver ohci_lh7a404_hc_driver = { */ .start = ohci_lh7a404_start, .stop = ohci_stop, - .shutdown = ohci_shutdown, + .shutdown = ohci_shutdown, /* * managing i/o requests and associated device resources @@ -242,7 +242,7 @@ static int ohci_hcd_lh7a404_drv_resume(struct platform_device *dev) static struct platform_driver ohci_hcd_lh7a404_driver = { .probe = ohci_hcd_lh7a404_drv_probe, .remove = ohci_hcd_lh7a404_drv_remove, - .shutdown = usb_hcd_platform_shutdown, + .shutdown = usb_hcd_platform_shutdown, /*.suspend = ohci_hcd_lh7a404_drv_suspend, */ /*.resume = ohci_hcd_lh7a404_drv_resume, */ .driver = { @@ -251,19 +251,3 @@ static struct platform_driver ohci_hcd_lh7a404_driver = { }, }; -static int __init ohci_hcd_lh7a404_init (void) -{ - pr_debug (DRIVER_INFO " (LH7A404)"); - pr_debug ("block sizes: ed %d td %d\n", - sizeof (struct ed), sizeof (struct td)); - - return platform_driver_register(&ohci_hcd_lh7a404_driver); -} - -static void __exit ohci_hcd_lh7a404_cleanup (void) -{ - platform_driver_unregister(&ohci_hcd_lh7a404_driver); -} - -module_init (ohci_hcd_lh7a404_init); -module_exit (ohci_hcd_lh7a404_cleanup); diff --git a/drivers/usb/host/ohci-mem.c b/drivers/usb/host/ohci-mem.c index d976614eebd3..2f20d3dc895b 100644 --- a/drivers/usb/host/ohci-mem.c +++ b/drivers/usb/host/ohci-mem.c @@ -1,24 +1,24 @@ /* * OHCI HCD (Host Controller Driver) for USB. - * + * * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net> - * + * * This file is licenced under the GPL. */ /*-------------------------------------------------------------------------*/ /* - * There's basically three types of memory: + * OHCI deals with three types of memory: * - data used only by the HCD ... kmalloc is fine * - async and periodic schedules, shared by HC and HCD ... these * need to use dma_pool or dma_alloc_coherent * - driver buffers, read/written by HC ... the hcd glue or the * device driver provides us with dma addresses * - * There's also PCI "register" data, which is memory mapped. - * No memory seen by this driver is pagable. + * There's also "register" data, which is memory mapped. + * No memory seen by this driver (or any HCD) may be paged out. */ /*-------------------------------------------------------------------------*/ diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c index 9c02177de50a..5cfa3d1c4413 100644 --- a/drivers/usb/host/ohci-omap.c +++ b/drivers/usb/host/ohci-omap.c @@ -447,7 +447,7 @@ static const struct hc_driver ohci_omap_hc_driver = { .reset = ohci_omap_init, .start = ohci_omap_start, .stop = ohci_omap_stop, - .shutdown = ohci_shutdown, + .shutdown = ohci_shutdown, /* * managing i/o requests and associated device resources @@ -533,7 +533,7 @@ static int ohci_omap_resume(struct platform_device *dev) static struct platform_driver ohci_hcd_omap_driver = { .probe = ohci_hcd_omap_drv_probe, .remove = ohci_hcd_omap_drv_remove, - .shutdown = usb_hcd_platform_shutdown, + .shutdown = usb_hcd_platform_shutdown, #ifdef CONFIG_PM .suspend = ohci_omap_suspend, .resume = ohci_omap_resume, @@ -544,22 +544,3 @@ static struct platform_driver ohci_hcd_omap_driver = { }, }; -static int __init ohci_hcd_omap_init (void) -{ - printk (KERN_DEBUG "%s: " DRIVER_INFO " (OMAP)\n", hcd_name); - if (usb_disabled()) - return -ENODEV; - - pr_debug("%s: block sizes: ed %Zd td %Zd\n", hcd_name, - sizeof (struct ed), sizeof (struct td)); - - return platform_driver_register(&ohci_hcd_omap_driver); -} - -static void __exit ohci_hcd_omap_cleanup (void) -{ - platform_driver_unregister(&ohci_hcd_omap_driver); -} - -module_init (ohci_hcd_omap_init); -module_exit (ohci_hcd_omap_cleanup); diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c index 874418552789..b331ac4d0d62 100644 --- a/drivers/usb/host/ohci-pci.c +++ b/drivers/usb/host/ohci-pci.c @@ -3,96 +3,171 @@ * * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net> - * + * * [ Initialisation is based on Linus' ] * [ uhci code and gregs ohci fragments ] * [ (C) Copyright 1999 Linus Torvalds ] * [ (C) Copyright 1999 Gregory P. Smith] - * + * * PCI Bus Glue * * This file is licenced under the GPL. */ - + #ifndef CONFIG_PCI #error "This file is PCI bus glue. CONFIG_PCI must be defined." #endif /*-------------------------------------------------------------------------*/ -static int -ohci_pci_reset (struct usb_hcd *hcd) +/* AMD 756, for most chips (early revs), corrupts register + * values on read ... so enable the vendor workaround. + */ +static int __devinit ohci_quirk_amd756(struct usb_hcd *hcd) { struct ohci_hcd *ohci = hcd_to_ohci (hcd); - ohci_hcd_init (ohci); - return ohci_init (ohci); + ohci->flags = OHCI_QUIRK_AMD756; + ohci_dbg (ohci, "AMD756 erratum 4 workaround\n"); + + /* also erratum 10 (suspend/resume issues) */ + device_init_wakeup(&hcd->self.root_hub->dev, 0); + + return 0; } -static int __devinit -ohci_pci_start (struct usb_hcd *hcd) +/* Apple's OHCI driver has a lot of bizarre workarounds + * for this chip. Evidently control and bulk lists + * can get confused. (B&W G3 models, and ...) + */ +static int __devinit ohci_quirk_opti(struct usb_hcd *hcd) { struct ohci_hcd *ohci = hcd_to_ohci (hcd); - int ret; - /* REVISIT this whole block should move to reset(), which handles - * all the other one-time init. + ohci_dbg (ohci, "WARNING: OPTi workarounds unavailable\n"); + + return 0; +} + +/* Check for NSC87560. We have to look at the bridge (fn1) to + * identify the USB (fn2). This quirk might apply to more or + * even all NSC stuff. + */ +static int __devinit ohci_quirk_ns(struct usb_hcd *hcd) +{ + struct pci_dev *pdev = to_pci_dev(hcd->self.controller); + struct pci_dev *b; + + b = pci_get_slot (pdev->bus, PCI_DEVFN (PCI_SLOT (pdev->devfn), 1)); + if (b && b->device == PCI_DEVICE_ID_NS_87560_LIO + && b->vendor == PCI_VENDOR_ID_NS) { + struct ohci_hcd *ohci = hcd_to_ohci (hcd); + + ohci->flags |= OHCI_QUIRK_SUPERIO; + ohci_dbg (ohci, "Using NSC SuperIO setup\n"); + } + pci_dev_put(b); + + return 0; +} + +/* Check for Compaq's ZFMicro chipset, which needs short + * delays before control or bulk queues get re-activated + * in finish_unlinks() + */ +static int __devinit ohci_quirk_zfmicro(struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci (hcd); + + ohci->flags |= OHCI_QUIRK_ZFMICRO; + ohci_dbg (ohci, "enabled Compaq ZFMicro chipset quirk\n"); + + return 0; +} + +/* Check for Toshiba SCC OHCI which has big endian registers + * and little endian in memory data structures + */ +static int __devinit ohci_quirk_toshiba_scc(struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci (hcd); + + /* That chip is only present in the southbridge of some + * cell based platforms which are supposed to select + * CONFIG_USB_OHCI_BIG_ENDIAN_MMIO. We verify here if + * that was the case though. */ +#ifdef CONFIG_USB_OHCI_BIG_ENDIAN_MMIO + ohci->flags |= OHCI_QUIRK_BE_MMIO; + ohci_dbg (ohci, "enabled big endian Toshiba quirk\n"); + return 0; +#else + ohci_err (ohci, "unsupported big endian Toshiba quirk\n"); + return -ENXIO; +#endif +} + +/* List of quirks for OHCI */ +static const struct pci_device_id ohci_pci_quirks[] = { + { + PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x740c), + .driver_data = (unsigned long)ohci_quirk_amd756, + }, + { + PCI_DEVICE(PCI_VENDOR_ID_OPTI, 0xc861), + .driver_data = (unsigned long)ohci_quirk_opti, + }, + { + PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_ANY_ID), + .driver_data = (unsigned long)ohci_quirk_ns, + }, + { + PCI_DEVICE(PCI_VENDOR_ID_COMPAQ, 0xa0f8), + .driver_data = (unsigned long)ohci_quirk_zfmicro, + }, + { + PCI_DEVICE(PCI_VENDOR_ID_TOSHIBA_2, 0x01b6), + .driver_data = (unsigned long)ohci_quirk_toshiba_scc, + }, + /* FIXME for some of the early AMD 760 southbridges, OHCI + * won't work at all. blacklist them. + */ + + {}, +}; + +static int ohci_pci_reset (struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci (hcd); + int ret = 0; + if (hcd->self.controller) { struct pci_dev *pdev = to_pci_dev(hcd->self.controller); + const struct pci_device_id *quirk_id; - /* AMD 756, for most chips (early revs), corrupts register - * values on read ... so enable the vendor workaround. - */ - if (pdev->vendor == PCI_VENDOR_ID_AMD - && pdev->device == 0x740c) { - ohci->flags = OHCI_QUIRK_AMD756; - ohci_dbg (ohci, "AMD756 erratum 4 workaround\n"); - /* also erratum 10 (suspend/resume issues) */ - device_init_wakeup(&hcd->self.root_hub->dev, 0); + quirk_id = pci_match_id(ohci_pci_quirks, pdev); + if (quirk_id != NULL) { + int (*quirk)(struct usb_hcd *ohci); + quirk = (void *)quirk_id->driver_data; + ret = quirk(hcd); } + } + if (ret == 0) { + ohci_hcd_init (ohci); + return ohci_init (ohci); + } + return ret; +} - /* FIXME for some of the early AMD 760 southbridges, OHCI - * won't work at all. blacklist them. - */ - - /* Apple's OHCI driver has a lot of bizarre workarounds - * for this chip. Evidently control and bulk lists - * can get confused. (B&W G3 models, and ...) - */ - else if (pdev->vendor == PCI_VENDOR_ID_OPTI - && pdev->device == 0xc861) { - ohci_dbg (ohci, - "WARNING: OPTi workarounds unavailable\n"); - } - /* Check for NSC87560. We have to look at the bridge (fn1) to - * identify the USB (fn2). This quirk might apply to more or - * even all NSC stuff. - */ - else if (pdev->vendor == PCI_VENDOR_ID_NS) { - struct pci_dev *b; - - b = pci_get_slot (pdev->bus, - PCI_DEVFN (PCI_SLOT (pdev->devfn), 1)); - if (b && b->device == PCI_DEVICE_ID_NS_87560_LIO - && b->vendor == PCI_VENDOR_ID_NS) { - ohci->flags |= OHCI_QUIRK_SUPERIO; - ohci_dbg (ohci, "Using NSC SuperIO setup\n"); - } - pci_dev_put(b); - } +static int __devinit ohci_pci_start (struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci (hcd); + int ret; - /* Check for Compaq's ZFMicro chipset, which needs short - * delays before control or bulk queues get re-activated - * in finish_unlinks() - */ - else if (pdev->vendor == PCI_VENDOR_ID_COMPAQ - && pdev->device == 0xa0f8) { - ohci->flags |= OHCI_QUIRK_ZFMICRO; - ohci_dbg (ohci, - "enabled Compaq ZFMicro chipset quirk\n"); - } +#ifdef CONFIG_PM /* avoid warnings about unused pdev */ + if (hcd->self.controller) { + struct pci_dev *pdev = to_pci_dev(hcd->self.controller); /* RWC may not be set for add-in PCI cards, since boot * firmware probably ignored them. This transfers PCI @@ -101,16 +176,14 @@ ohci_pci_start (struct usb_hcd *hcd) if (device_may_wakeup(&pdev->dev)) ohci->hc_control |= OHCI_CTRL_RWC; } +#endif /* CONFIG_PM */ - /* NOTE: there may have already been a first reset, to - * keep bios/smm irqs from making trouble - */ - if ((ret = ohci_run (ohci)) < 0) { + ret = ohci_run (ohci); + if (ret < 0) { ohci_err (ohci, "can't start\n"); ohci_stop (hcd); - return ret; } - return 0; + return ret; } #ifdef CONFIG_PM @@ -238,23 +311,3 @@ static struct pci_driver ohci_pci_driver = { .shutdown = usb_hcd_pci_shutdown, }; - -static int __init ohci_hcd_pci_init (void) -{ - printk (KERN_DEBUG "%s: " DRIVER_INFO " (PCI)\n", hcd_name); - if (usb_disabled()) - return -ENODEV; - - pr_debug ("%s: block sizes: ed %Zd td %Zd\n", hcd_name, - sizeof (struct ed), sizeof (struct td)); - return pci_register_driver (&ohci_pci_driver); -} -module_init (ohci_hcd_pci_init); - -/*-------------------------------------------------------------------------*/ - -static void __exit ohci_hcd_pci_cleanup (void) -{ - pci_unregister_driver (&ohci_pci_driver); -} -module_exit (ohci_hcd_pci_cleanup); diff --git a/drivers/usb/host/ohci-pnx4008.c b/drivers/usb/host/ohci-pnx4008.c index 7f26f9bdbaf1..893b172384da 100644 --- a/drivers/usb/host/ohci-pnx4008.c +++ b/drivers/usb/host/ohci-pnx4008.c @@ -4,7 +4,7 @@ * driver for Philips PNX4008 USB Host * * Authors: Dmitry Chigirev <source@mvista.com> - * Vitaly Wool <vitalywool@gmail.com> + * Vitaly Wool <vitalywool@gmail.com> * * register initialization is based on code examples provided by Philips * Copyright (c) 2005 Koninklijke Philips Electronics N.V. @@ -29,7 +29,7 @@ #include <asm/arch/irqs.h> #include <asm/arch/gpio.h> -#define USB_CTRL IO_ADDRESS(PNX4008_PWRMAN_BASE + 0x64) +#define USB_CTRL IO_ADDRESS(PNX4008_PWRMAN_BASE + 0x64) /* USB_CTRL bit defines */ #define USB_SLAVE_HCLK_EN (1 << 24) @@ -465,15 +465,3 @@ static struct platform_driver usb_hcd_pnx4008_driver = { .remove = usb_hcd_pnx4008_remove, }; -static int __init usb_hcd_pnx4008_init(void) -{ - return platform_driver_register(&usb_hcd_pnx4008_driver); -} - -static void __exit usb_hcd_pnx4008_cleanup(void) -{ - return platform_driver_unregister(&usb_hcd_pnx4008_driver); -} - -module_init(usb_hcd_pnx4008_init); -module_exit(usb_hcd_pnx4008_cleanup); diff --git a/drivers/usb/host/ohci-pnx8550.c b/drivers/usb/host/ohci-pnx8550.c new file mode 100644 index 000000000000..de45eb0051a7 --- /dev/null +++ b/drivers/usb/host/ohci-pnx8550.c @@ -0,0 +1,242 @@ +/* + * OHCI HCD (Host Controller Driver) for USB. + * + * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> + * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net> + * (C) Copyright 2002 Hewlett-Packard Company + * (C) Copyright 2005 Embedded Alley Solutions, Inc. + * + * Bus Glue for PNX8550 + * + * Written by Christopher Hoover <ch@hpl.hp.com> + * Based on fragments of previous driver by Russell King et al. + * + * Modified for LH7A404 from ohci-sa1111.c + * by Durgesh Pattamatta <pattamattad@sharpsec.com> + * + * Modified for PNX8550 from ohci-sa1111.c and sa-omap.c + * by Vitaly Wool <vitalywool@gmail.com> + * + * This file is licenced under the GPL. + */ + +#include <linux/device.h> +#include <linux/platform_device.h> +#include <asm/mach-pnx8550/usb.h> +#include <asm/mach-pnx8550/int.h> +#include <asm/mach-pnx8550/pci.h> + +#ifndef CONFIG_PNX8550 +#error "This file is PNX8550 bus glue. CONFIG_PNX8550 must be defined." +#endif + +extern int usb_disabled(void); + +/*-------------------------------------------------------------------------*/ + +static void pnx8550_start_hc(struct platform_device *dev) +{ + /* + * Set register CLK48CTL to enable and 48MHz + */ + outl(0x00000003, PCI_BASE | 0x0004770c); + + /* + * Set register CLK12CTL to enable and 48MHz + */ + outl(0x00000003, PCI_BASE | 0x00047710); + + udelay(100); +} + +static void pnx8550_stop_hc(struct platform_device *dev) +{ + udelay(10); +} + + +/*-------------------------------------------------------------------------*/ + +/* configure so an HC device and id are always provided */ +/* always called with process context; sleeping is OK */ + + +/** + * usb_hcd_pnx8550_probe - initialize pnx8550-based HCDs + * Context: !in_interrupt() + * + * Allocates basic resources for this USB host controller, and + * then invokes the start() method for the HCD associated with it + * through the hotplug entry's driver_data. + * + */ +int usb_hcd_pnx8550_probe (const struct hc_driver *driver, + struct platform_device *dev) +{ + int retval; + struct usb_hcd *hcd; + + if (dev->resource[0].flags != IORESOURCE_MEM || + dev->resource[1].flags != IORESOURCE_IRQ) { + dev_err (&dev->dev,"invalid resource type\n"); + return -ENOMEM; + } + + hcd = usb_create_hcd (driver, &dev->dev, "pnx8550"); + if (!hcd) + return -ENOMEM; + hcd->rsrc_start = dev->resource[0].start; + hcd->rsrc_len = dev->resource[0].end - dev->resource[0].start + 1; + + if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { + dev_err(&dev->dev, "request_mem_region [0x%08llx, 0x%08llx] " + "failed\n", hcd->rsrc_start, hcd->rsrc_len); + retval = -EBUSY; + goto err1; + } + + hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); + if (!hcd->regs) { + dev_err(&dev->dev, "ioremap [[0x%08llx, 0x%08llx] failed\n", + hcd->rsrc_start, hcd->rsrc_len); + retval = -ENOMEM; + goto err2; + } + + pnx8550_start_hc(dev); + + ohci_hcd_init(hcd_to_ohci(hcd)); + + retval = usb_add_hcd(hcd, dev->resource[1].start, SA_INTERRUPT); + if (retval == 0) + return retval; + + pnx8550_stop_hc(dev); + iounmap(hcd->regs); + err2: + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + err1: + usb_put_hcd(hcd); + return retval; +} + + +/* may be called without controller electrically present */ +/* may be called with controller, bus, and devices active */ + +/** + * usb_hcd_pnx8550_remove - shutdown processing for pnx8550-based HCDs + * @dev: USB Host Controller being removed + * Context: !in_interrupt() + * + * Reverses the effect of usb_hcd_pnx8550_probe(), first invoking + * the HCD's stop() method. It is always called from a thread + * context, normally "rmmod", "apmd", or something similar. + * + */ +void usb_hcd_pnx8550_remove (struct usb_hcd *hcd, struct platform_device *dev) +{ + usb_remove_hcd(hcd); + pnx8550_stop_hc(dev); + iounmap(hcd->regs); + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + usb_put_hcd(hcd); +} + +/*-------------------------------------------------------------------------*/ + +static int __devinit +ohci_pnx8550_start (struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci (hcd); + int ret; + + ohci_dbg (ohci, "ohci_pnx8550_start, ohci:%p", ohci); + + if ((ret = ohci_init(ohci)) < 0) + return ret; + + if ((ret = ohci_run (ohci)) < 0) { + err ("can't start %s", hcd->self.bus_name); + ohci_stop (hcd); + return ret; + } + + return 0; +} + +/*-------------------------------------------------------------------------*/ + +static const struct hc_driver ohci_pnx8550_hc_driver = { + .description = hcd_name, + .product_desc = "PNX8550 OHCI", + .hcd_priv_size = sizeof(struct ohci_hcd), + + /* + * generic hardware linkage + */ + .irq = ohci_irq, + .flags = HCD_USB11 | HCD_MEMORY, + + /* + * basic lifecycle operations + */ + .start = ohci_pnx8550_start, + .stop = ohci_stop, + + /* + * managing i/o requests and associated device resources + */ + .urb_enqueue = ohci_urb_enqueue, + .urb_dequeue = ohci_urb_dequeue, + .endpoint_disable = ohci_endpoint_disable, + + /* + * scheduling support + */ + .get_frame_number = ohci_get_frame, + + /* + * root hub support + */ + .hub_status_data = ohci_hub_status_data, + .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, +#ifdef CONFIG_PM + .bus_suspend = ohci_bus_suspend, + .bus_resume = ohci_bus_resume, +#endif + .start_port_reset = ohci_start_port_reset, +}; + +/*-------------------------------------------------------------------------*/ + +static int ohci_hcd_pnx8550_drv_probe(struct platform_device *pdev) +{ + int ret; + + if (usb_disabled()) + return -ENODEV; + + ret = usb_hcd_pnx8550_probe(&ohci_pnx8550_hc_driver, pdev); + return ret; +} + +static int ohci_hcd_pnx8550_drv_remove(struct platform_device *pdev) +{ + struct usb_hcd *hcd = platform_get_drvdata(pdev); + + usb_hcd_pnx8550_remove(hcd, pdev); + return 0; +} + +MODULE_ALIAS("pnx8550-ohci"); + +static struct platform_driver ohci_hcd_pnx8550_driver = { + .driver = { + .name = "pnx8550-ohci", + }, + .probe = ohci_hcd_pnx8550_drv_probe, + .remove = ohci_hcd_pnx8550_drv_remove, +}; + diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c new file mode 100644 index 000000000000..08e237c7bc43 --- /dev/null +++ b/drivers/usb/host/ohci-ppc-of.c @@ -0,0 +1,232 @@ +/* + * OHCI HCD (Host Controller Driver) for USB. + * + * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> + * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net> + * (C) Copyright 2002 Hewlett-Packard Company + * (C) Copyright 2006 Sylvain Munaut <tnt@246tNt.com> + * + * Bus glue for OHCI HC on the of_platform bus + * + * Modified for of_platform bus from ohci-sa1111.c + * + * This file is licenced under the GPL. + */ + +#include <linux/signal.h> + +#include <asm/of_platform.h> +#include <asm/prom.h> + + +static int __devinit +ohci_ppc_of_start(struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + int ret; + + if ((ret = ohci_init(ohci)) < 0) + return ret; + + if ((ret = ohci_run(ohci)) < 0) { + err("can't start %s", ohci_to_hcd(ohci)->self.bus_name); + ohci_stop(hcd); + return ret; + } + + return 0; +} + +static const struct hc_driver ohci_ppc_of_hc_driver = { + .description = hcd_name, + .product_desc = "OF OHCI", + .hcd_priv_size = sizeof(struct ohci_hcd), + + /* + * generic hardware linkage + */ + .irq = ohci_irq, + .flags = HCD_USB11 | HCD_MEMORY, + + /* + * basic lifecycle operations + */ + .start = ohci_ppc_of_start, + .stop = ohci_stop, + .shutdown = ohci_shutdown, + + /* + * managing i/o requests and associated device resources + */ + .urb_enqueue = ohci_urb_enqueue, + .urb_dequeue = ohci_urb_dequeue, + .endpoint_disable = ohci_endpoint_disable, + + /* + * scheduling support + */ + .get_frame_number = ohci_get_frame, + + /* + * root hub support + */ + .hub_status_data = ohci_hub_status_data, + .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, +#ifdef CONFIG_PM + .bus_suspend = ohci_bus_suspend, + .bus_resume = ohci_bus_resume, +#endif + .start_port_reset = ohci_start_port_reset, +}; + + +static int __devinit +ohci_hcd_ppc_of_probe(struct of_device *op, const struct of_device_id *match) +{ + struct device_node *dn = op->node; + struct usb_hcd *hcd; + struct ohci_hcd *ohci; + struct resource res; + int irq; + + int rv; + int is_bigendian; + + if (usb_disabled()) + return -ENODEV; + + is_bigendian = + device_is_compatible(dn, "ohci-bigendian") || + device_is_compatible(dn, "ohci-be"); + + dev_dbg(&op->dev, "initializing PPC-OF USB Controller\n"); + + rv = of_address_to_resource(dn, 0, &res); + if (rv) + return rv; + + hcd = usb_create_hcd(&ohci_ppc_of_hc_driver, &op->dev, "PPC-OF USB"); + if (!hcd) + return -ENOMEM; + + hcd->rsrc_start = res.start; + hcd->rsrc_len = res.end - res.start + 1; + + if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) { + printk(KERN_ERR __FILE__ ": request_mem_region failed\n"); + rv = -EBUSY; + goto err_rmr; + } + + irq = irq_of_parse_and_map(dn, 0); + if (irq == NO_IRQ) { + printk(KERN_ERR __FILE__ ": irq_of_parse_and_map failed\n"); + rv = -EBUSY; + goto err_irq; + } + + hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len); + if (!hcd->regs) { + printk(KERN_ERR __FILE__ ": ioremap failed\n"); + rv = -ENOMEM; + goto err_ioremap; + } + + ohci = hcd_to_ohci(hcd); + if (is_bigendian) + ohci->flags |= OHCI_QUIRK_BE_MMIO | OHCI_QUIRK_BE_DESC; + + ohci_hcd_init(ohci); + + rv = usb_add_hcd(hcd, irq, 0); + if (rv == 0) + return 0; + + iounmap(hcd->regs); +err_ioremap: + irq_dispose_mapping(irq); +err_irq: + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); +err_rmr: + usb_put_hcd(hcd); + + return rv; +} + +static int ohci_hcd_ppc_of_remove(struct of_device *op) +{ + struct usb_hcd *hcd = dev_get_drvdata(&op->dev); + dev_set_drvdata(&op->dev, NULL); + + dev_dbg(&op->dev, "stopping PPC-OF USB Controller\n"); + + usb_remove_hcd(hcd); + + iounmap(hcd->regs); + irq_dispose_mapping(hcd->irq); + release_mem_region(hcd->rsrc_start, hcd->rsrc_len); + + usb_put_hcd(hcd); + + return 0; +} + +static int ohci_hcd_ppc_of_shutdown(struct of_device *op) +{ + struct usb_hcd *hcd = dev_get_drvdata(&op->dev); + + if (hcd->driver->shutdown) + hcd->driver->shutdown(hcd); + + return 0; +} + + +static struct of_device_id ohci_hcd_ppc_of_match[] = { +#ifdef CONFIG_USB_OHCI_HCD_PPC_OF_BE + { + .name = "usb", + .compatible = "ohci-bigendian", + }, + { + .name = "usb", + .compatible = "ohci-be", + }, +#endif +#ifdef CONFIG_USB_OHCI_HCD_PPC_OF_LE + { + .name = "usb", + .compatible = "ohci-littledian", + }, + { + .name = "usb", + .compatible = "ohci-le", + }, +#endif + {}, +}; +MODULE_DEVICE_TABLE(of, ohci_hcd_ppc_of_match); + +#if !defined(CONFIG_USB_OHCI_HCD_PPC_OF_BE) && \ + !defined(CONFIG_USB_OHCI_HCD_PPC_OF_LE) +#error "No endianess selected for ppc-of-ohci" +#endif + + +static struct of_platform_driver ohci_hcd_ppc_of_driver = { + .name = "ppc-of-ohci", + .match_table = ohci_hcd_ppc_of_match, + .probe = ohci_hcd_ppc_of_probe, + .remove = ohci_hcd_ppc_of_remove, + .shutdown = ohci_hcd_ppc_of_shutdown, +#ifdef CONFIG_PM + /*.suspend = ohci_hcd_ppc_soc_drv_suspend,*/ + /*.resume = ohci_hcd_ppc_soc_drv_resume,*/ +#endif + .driver = { + .name = "ppc-of-ohci", + .owner = THIS_MODULE, + }, +}; + diff --git a/drivers/usb/host/ohci-ppc-soc.c b/drivers/usb/host/ohci-ppc-soc.c index d9d1ae236bd5..1a2e1777ca61 100644 --- a/drivers/usb/host/ohci-ppc-soc.c +++ b/drivers/usb/host/ohci-ppc-soc.c @@ -5,7 +5,7 @@ * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net> * (C) Copyright 2002 Hewlett-Packard Company * (C) Copyright 2003-2005 MontaVista Software Inc. - * + * * Bus Glue for PPC On-Chip OHCI driver * Tested on Freescale MPC5200 and IBM STB04xxx * @@ -72,7 +72,7 @@ static int usb_hcd_ppc_soc_probe(const struct hc_driver *driver, } ohci = hcd_to_ohci(hcd); - ohci->flags |= OHCI_BIG_ENDIAN; + ohci->flags |= OHCI_QUIRK_BE_MMIO | OHCI_QUIRK_BE_DESC; ohci_hcd_init(ohci); retval = usb_add_hcd(hcd, irq, IRQF_DISABLED); @@ -85,7 +85,7 @@ static int usb_hcd_ppc_soc_probe(const struct hc_driver *driver, err2: release_mem_region(hcd->rsrc_start, hcd->rsrc_len); err1: - usb_put_hcd(hcd); + usb_put_hcd(hcd); return retval; } @@ -148,7 +148,7 @@ static const struct hc_driver ohci_ppc_soc_hc_driver = { */ .start = ohci_ppc_soc_start, .stop = ohci_stop, - .shutdown = ohci_shutdown, + .shutdown = ohci_shutdown, /* * managing i/o requests and associated device resources @@ -197,7 +197,7 @@ static int ohci_hcd_ppc_soc_drv_remove(struct platform_device *pdev) static struct platform_driver ohci_hcd_ppc_soc_driver = { .probe = ohci_hcd_ppc_soc_drv_probe, .remove = ohci_hcd_ppc_soc_drv_remove, - .shutdown = usb_hcd_platform_shutdown, + .shutdown = usb_hcd_platform_shutdown, #ifdef CONFIG_PM /*.suspend = ohci_hcd_ppc_soc_drv_suspend,*/ /*.resume = ohci_hcd_ppc_soc_drv_resume,*/ @@ -208,19 +208,3 @@ static struct platform_driver ohci_hcd_ppc_soc_driver = { }, }; -static int __init ohci_hcd_ppc_soc_init(void) -{ - pr_debug(DRIVER_INFO " (PPC SOC)\n"); - pr_debug("block sizes: ed %d td %d\n", sizeof(struct ed), - sizeof(struct td)); - - return platform_driver_register(&ohci_hcd_ppc_soc_driver); -} - -static void __exit ohci_hcd_ppc_soc_cleanup(void) -{ - platform_driver_unregister(&ohci_hcd_ppc_soc_driver); -} - -module_init(ohci_hcd_ppc_soc_init); -module_exit(ohci_hcd_ppc_soc_cleanup); diff --git a/drivers/usb/host/ohci-ps3.c b/drivers/usb/host/ohci-ps3.c new file mode 100644 index 000000000000..62283a3926de --- /dev/null +++ b/drivers/usb/host/ohci-ps3.c @@ -0,0 +1,196 @@ +/* + * PS3 OHCI Host Controller driver + * + * Copyright (C) 2006 Sony Computer Entertainment Inc. + * Copyright 2006 Sony Corp. + * + * 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; version 2 of the License. + * + * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <asm/ps3.h> + +static int ps3_ohci_hc_reset(struct usb_hcd *hcd) +{ + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + + ohci->flags |= OHCI_QUIRK_BE_MMIO; + ohci_hcd_init(ohci); + return ohci_init(ohci); +} + +static int __devinit ps3_ohci_hc_start(struct usb_hcd *hcd) +{ + int result; + struct ohci_hcd *ohci = hcd_to_ohci(hcd); + + /* Handle root hub init quirk in spider south bridge. */ + /* Also set PwrOn2PwrGood to 0x7f (254ms). */ + + ohci_writel(ohci, 0x7f000000 | RH_A_PSM | RH_A_OCPM, + &ohci->regs->roothub.a); + ohci_writel(ohci, 0x00060000, &ohci->regs->roothub.b); + + result = ohci_run(ohci); + + if (result < 0) { + err("can't start %s", hcd->self.bus_name); + ohci_stop(hcd); + } + + return result; +} + +static const struct hc_driver ps3_ohci_hc_driver = { + .description = hcd_name, + .product_desc = "PS3 OHCI Host Controller", + .hcd_priv_size = sizeof(struct ohci_hcd), + .irq = ohci_irq, + .flags = HCD_MEMORY | HCD_USB11, + .reset = ps3_ohci_hc_reset, + .start = ps3_ohci_hc_start, + .stop = ohci_stop, + .shutdown = ohci_shutdown, + .urb_enqueue = ohci_urb_enqueue, + .urb_dequeue = ohci_urb_dequeue, + .endpoint_disable = ohci_endpoint_disable, + .get_frame_number = ohci_get_frame, + .hub_status_data = ohci_hub_status_data, + .hub_control = ohci_hub_control, + .hub_irq_enable = ohci_rhsc_enable, + .start_port_reset = ohci_start_port_reset, +#if defined(CONFIG_PM) + .bus_suspend = ohci_bus_suspend, + .bus_resume = ohci_bus_resume, +#endif +}; + +/* redefine dev_dbg to do a syntax check */ + +#if !defined(DEBUG) +#undef dev_dbg +static inline int __attribute__ ((format (printf, 2, 3))) dev_dbg( + const struct device *_dev, const char *fmt, ...) {return 0;} +#endif + +static int ps3_ohci_sb_probe(struct ps3_system_bus_device *dev) +{ + int result; + struct usb_hcd *hcd; + unsigned int virq; + static u64 dummy_mask = DMA_32BIT_MASK; + + if (usb_disabled()) { + result = -ENODEV; + goto fail_start; + } + + result = ps3_mmio_region_create(dev->m_region); + + if (result) { + dev_dbg(&dev->core, "%s:%d: ps3_map_mmio_region failed\n", + __func__, __LINE__); + result = -EPERM; + goto fail_mmio; + } + + dev_dbg(&dev->core, "%s:%d: mmio mapped_addr %lxh\n", __func__, + __LINE__, dev->m_region->lpar_addr); + + result = ps3_alloc_io_irq(PS3_BINDING_CPU_ANY, dev->interrupt_id, &virq); + + if (result) { + dev_dbg(&dev->core, "%s:%d: ps3_construct_io_irq(%d) failed.\n", + __func__, __LINE__, virq); + result = -EPERM; + goto fail_irq; + } + + dev->core.power.power_state = PMSG_ON; + dev->core.dma_mask = &dummy_mask; /* FIXME: for improper usb code */ + + hcd = usb_create_hcd(&ps3_ohci_hc_driver, &dev->core, dev->core.bus_id); + + if (!hcd) { + dev_dbg(&dev->core, "%s:%d: usb_create_hcd failed\n", __func__, + __LINE__); + result = -ENOMEM; + goto fail_create_hcd; + } + + hcd->rsrc_start = dev->m_region->lpar_addr; + hcd->rsrc_len = dev->m_region->len; + hcd->regs = ioremap(dev->m_region->lpar_addr, dev->m_region->len); + + if (!hcd->regs) { + dev_dbg(&dev->core, "%s:%d: ioremap failed\n", __func__, + __LINE__); + result = -EPERM; + goto fail_ioremap; + } + + dev_dbg(&dev->core, "%s:%d: hcd->rsrc_start %lxh\n", __func__, __LINE__, + (unsigned long)hcd->rsrc_start); + dev_dbg(&dev->core, "%s:%d: hcd->rsrc_len %lxh\n", __func__, __LINE__, + (unsigned long)hcd->rsrc_len); + dev_dbg(&dev->core, "%s:%d: hcd->regs %lxh\n", __func__, __LINE__, + (unsigned long)hcd->regs); + dev_dbg(&dev->core, "%s:%d: virq %lu\n", __func__, __LINE__, + (unsigned long)virq); + + ps3_system_bus_set_driver_data(dev, hcd); + + result = usb_add_hcd(hcd, virq, IRQF_DISABLED); + + if (result) { + dev_dbg(&dev->core, "%s:%d: usb_add_hcd failed (%d)\n", + __func__, __LINE__, result); + goto fail_add_hcd; + } + + return result; + +fail_add_hcd: + iounmap(hcd->regs); +fail_ioremap: + usb_put_hcd(hcd); +fail_create_hcd: + ps3_free_io_irq(virq); +fail_irq: + ps3_free_mmio_region(dev->m_region); +fail_mmio: +fail_start: + return result; +} + +static int ps3_ohci_sb_remove (struct ps3_system_bus_device *dev) +{ + struct usb_hcd *hcd = + (struct usb_hcd *)ps3_system_bus_get_driver_data(dev); + + usb_put_hcd(hcd); + ps3_system_bus_set_driver_data(dev, NULL); + + return 0; +} + +MODULE_ALIAS("ps3-ohci"); + +static struct ps3_system_bus_driver ps3_ohci_sb_driver = { + .match_id = PS3_MATCH_ID_OHCI, + .core = { + .name = "ps3-ohci-driver", + }, + .probe = ps3_ohci_sb_probe, + .remove = ps3_ohci_sb_remove, +}; diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c index e176b04d7aeb..f1563dc319d3 100644 --- a/drivers/usb/host/ohci-pxa27x.c +++ b/drivers/usb/host/ohci-pxa27x.c @@ -47,7 +47,7 @@ static int pxa27x_ohci_select_pmm( int mode ) switch ( mode ) { case PMM_NPS_MODE: UHCRHDA |= RH_A_NPS; - break; + break; case PMM_GLOBAL_MODE: UHCRHDA &= ~(RH_A_NPS & RH_A_PSM); break; @@ -60,7 +60,7 @@ static int pxa27x_ohci_select_pmm( int mode ) break; default: printk( KERN_ERR - "Invalid mode %d, set to non-power switch mode.\n", + "Invalid mode %d, set to non-power switch mode.\n", mode ); UHCRHDA |= RH_A_NPS; @@ -270,7 +270,7 @@ static const struct hc_driver ohci_pxa27x_hc_driver = { */ .start = ohci_pxa27x_start, .stop = ohci_stop, - .shutdown = ohci_shutdown, + .shutdown = ohci_shutdown, /* * managing i/o requests and associated device resources @@ -359,9 +359,9 @@ static int ohci_hcd_pxa27x_drv_resume(struct platform_device *pdev) static struct platform_driver ohci_hcd_pxa27x_driver = { .probe = ohci_hcd_pxa27x_drv_probe, .remove = ohci_hcd_pxa27x_drv_remove, - .shutdown = usb_hcd_platform_shutdown, + .shutdown = usb_hcd_platform_shutdown, #ifdef CONFIG_PM - .suspend = ohci_hcd_pxa27x_drv_suspend, + .suspend = ohci_hcd_pxa27x_drv_suspend, .resume = ohci_hcd_pxa27x_drv_resume, #endif .driver = { @@ -369,19 +369,3 @@ static struct platform_driver ohci_hcd_pxa27x_driver = { }, }; -static int __init ohci_hcd_pxa27x_init (void) -{ - pr_debug (DRIVER_INFO " (pxa27x)"); - pr_debug ("block sizes: ed %d td %d\n", - sizeof (struct ed), sizeof (struct td)); - - return platform_driver_register(&ohci_hcd_pxa27x_driver); -} - -static void __exit ohci_hcd_pxa27x_cleanup (void) -{ - platform_driver_unregister(&ohci_hcd_pxa27x_driver); -} - -module_init (ohci_hcd_pxa27x_init); -module_exit (ohci_hcd_pxa27x_cleanup); diff --git a/drivers/usb/host/ohci-q.c b/drivers/usb/host/ohci-q.c index fe1fe2f97cb5..830a3fe8615e 100644 --- a/drivers/usb/host/ohci-q.c +++ b/drivers/usb/host/ohci-q.c @@ -1,9 +1,9 @@ /* * OHCI HCD (Host Controller Driver) for USB. - * + * * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net> - * + * * This file is licenced under the GPL. */ @@ -89,7 +89,7 @@ __acquires(ohci->lock) /*-------------------------------------------------------------------------* * ED handling functions - *-------------------------------------------------------------------------*/ + *-------------------------------------------------------------------------*/ /* search for the right schedule branch to use for a periodic ed. * does some load balancing; returns the branch, or negative errno. @@ -107,7 +107,6 @@ static int balance (struct ohci_hcd *ohci, int interval, int load) */ for (i = 0; i < interval ; i++) { if (branch < 0 || ohci->load [branch] > ohci->load [i]) { -#if 1 /* CONFIG_USB_BANDWIDTH */ int j; /* usb 1.1 says 90% of one frame */ @@ -117,8 +116,7 @@ static int balance (struct ohci_hcd *ohci, int interval, int load) } if (j < NUM_INTS) continue; -#endif - branch = i; + branch = i; } } return branch; @@ -171,7 +169,7 @@ static void periodic_link (struct ohci_hcd *ohci, struct ed *ed) /* link an ed into one of the HC chains */ static int ed_schedule (struct ohci_hcd *ohci, struct ed *ed) -{ +{ int branch; if (ohci_to_hcd(ohci)->state == HC_STATE_QUIESCING) @@ -248,7 +246,7 @@ static int ed_schedule (struct ohci_hcd *ohci, struct ed *ed) } ed->branch = branch; periodic_link (ohci, ed); - } + } /* the HC may not see the schedule updates yet, but if it does * then they'll be properly ordered. @@ -277,7 +275,7 @@ static void periodic_unlink (struct ohci_hcd *ohci, struct ed *ed) *prev = ed->ed_next; } ohci->load [i] -= ed->load; - } + } ohci_to_hcd(ohci)->self.bandwidth_allocated -= ed->load / ed->interval; ohci_vdbg (ohci, "unlink %sed %p branch %d [%dus.], interval %d\n", @@ -285,7 +283,7 @@ static void periodic_unlink (struct ohci_hcd *ohci, struct ed *ed) ed, ed->branch, ed->load, ed->interval); } -/* unlink an ed from one of the HC chains. +/* unlink an ed from one of the HC chains. * just the link to the ed is unlinked. * the link from the ed still points to another operational ed or 0 * so the HC can eventually finish the processing of the unlinked ed @@ -307,7 +305,7 @@ static void periodic_unlink (struct ohci_hcd *ohci, struct ed *ed) * When finish_unlinks() runs later, after SOF interrupt, it will often * complete one or more URB unlinks before making that state change. */ -static void ed_deschedule (struct ohci_hcd *ohci, struct ed *ed) +static void ed_deschedule (struct ohci_hcd *ohci, struct ed *ed) { ed->hwINFO |= cpu_to_hc32 (ohci, ED_SKIP); wmb (); @@ -397,7 +395,7 @@ static struct ed *ed_get ( unsigned int pipe, int interval ) { - struct ed *ed; + struct ed *ed; unsigned long flags; spin_lock_irqsave (&ohci->lock, flags); @@ -413,9 +411,9 @@ static struct ed *ed_get ( goto done; } - /* dummy td; end of td list for ed */ + /* dummy td; end of td list for ed */ td = td_alloc (ohci, GFP_ATOMIC); - if (!td) { + if (!td) { /* out of memory */ ed_free (ohci, ed); ed = NULL; @@ -462,7 +460,7 @@ static struct ed *ed_get ( done: spin_unlock_irqrestore (&ohci->lock, flags); - return ed; + return ed; } /*-------------------------------------------------------------------------*/ @@ -474,7 +472,7 @@ done: * and that ed->state is ED_OPER */ static void start_ed_unlink (struct ohci_hcd *ohci, struct ed *ed) -{ +{ ed->hwINFO |= cpu_to_hc32 (ohci, ED_DEQUEUE); ed_deschedule (ohci, ed); @@ -541,7 +539,7 @@ td_fill (struct ohci_hcd *ohci, u32 info, td->ed = urb_priv->ed; td->next_dl_td = NULL; td->index = index; - td->urb = urb; + td->urb = urb; td->data_dma = data; if (!len) data = 0; @@ -553,8 +551,8 @@ td_fill (struct ohci_hcd *ohci, u32 info, (data & 0x0FFF) | 0xE000); td->ed->last_iso = info & 0xffff; } else { - td->hwCBP = cpu_to_hc32 (ohci, data); - } + td->hwCBP = cpu_to_hc32 (ohci, data); + } if (data) td->hwBE = cpu_to_hc32 (ohci, data + len - 1); else @@ -597,7 +595,7 @@ static void td_submit_urb ( * use the device toggle bits for resetting, and rely on the fact * that resetting toggle is meaningless if the endpoint is active. */ - if (!usb_gettoggle (urb->dev, usb_pipeendpoint (urb->pipe), is_out)) { + if (!usb_gettoggle (urb->dev, usb_pipeendpoint (urb->pipe), is_out)) { usb_settoggle (urb->dev, usb_pipeendpoint (urb->pipe), is_out, 1); urb_priv->ed->hwHeadP &= ~cpu_to_hc32 (ohci, ED_C); @@ -721,16 +719,16 @@ static void td_done (struct ohci_hcd *ohci, struct urb *urb, struct td *td) list_del (&td->td_list); /* ISO ... drivers see per-TD length/status */ - if (tdINFO & TD_ISO) { - u16 tdPSW = ohci_hwPSW (ohci, td, 0); + if (tdINFO & TD_ISO) { + u16 tdPSW = ohci_hwPSW (ohci, td, 0); int dlen = 0; /* NOTE: assumes FC in tdINFO == 0, and that * only the first of 0..MAXPSW psws is used. */ - cc = (tdPSW >> 12) & 0xF; - if (tdINFO & TD_CC) /* hc didn't touch? */ + cc = (tdPSW >> 12) & 0xF; + if (tdINFO & TD_CC) /* hc didn't touch? */ return; if (usb_pipeout (urb->pipe)) @@ -758,7 +756,7 @@ static void td_done (struct ohci_hcd *ohci, struct urb *urb, struct td *td) int type = usb_pipetype (urb->pipe); u32 tdBE = hc32_to_cpup (ohci, &td->hwBE); - cc = TD_CC_GET (tdINFO); + cc = TD_CC_GET (tdINFO); /* update packet status if needed (short is normally ok) */ if (cc == TD_DATAUNDERRUN @@ -787,7 +785,7 @@ static void td_done (struct ohci_hcd *ohci, struct urb *urb, struct td *td) urb, td, 1 + td->index, cc, urb->actual_length, urb->transfer_buffer_length); - } + } } /*-------------------------------------------------------------------------*/ @@ -795,7 +793,7 @@ static void td_done (struct ohci_hcd *ohci, struct urb *urb, struct td *td) static inline struct td * ed_halted (struct ohci_hcd *ohci, struct td *td, int cc, struct td *rev) { - struct urb *urb = td->urb; + struct urb *urb = td->urb; struct ed *ed = td->ed; struct list_head *tmp = td->td_list.next; __hc32 toggle = ed->hwHeadP & cpu_to_hc32 (ohci, ED_C); @@ -805,7 +803,7 @@ ed_halted (struct ohci_hcd *ohci, struct td *td, int cc, struct td *rev) */ ed->hwINFO |= cpu_to_hc32 (ohci, ED_SKIP); wmb (); - ed->hwHeadP &= ~cpu_to_hc32 (ohci, ED_H); + ed->hwHeadP &= ~cpu_to_hc32 (ohci, ED_H); /* put any later tds from this urb onto the donelist, after 'td', * order won't matter here: no errors, and nothing was transferred. @@ -833,7 +831,7 @@ ed_halted (struct ohci_hcd *ohci, struct td *td, int cc, struct td *rev) info &= ~cpu_to_hc32 (ohci, TD_CC); next->hwINFO = info; - next->next_dl_td = rev; + next->next_dl_td = rev; rev = next; ed->hwHeadP = next->hwNextTD | toggle; @@ -881,8 +879,8 @@ static struct td *dl_reverse_done_list (struct ohci_hcd *ohci) /* get TD from hc's singly linked list, and * prepend to ours. ed->td_list changes later. */ - while (td_dma) { - int cc; + while (td_dma) { + int cc; td = dma_to_td (ohci, td_dma); if (!td) { @@ -901,10 +899,10 @@ static struct td *dl_reverse_done_list (struct ohci_hcd *ohci) && (td->ed->hwHeadP & cpu_to_hc32 (ohci, ED_H))) td_rev = ed_halted (ohci, td, cc, td_rev); - td->next_dl_td = td_rev; + td->next_dl_td = td_rev; td_rev = td; td_dma = hc32_to_cpup (ohci, &td->hwNextTD); - } + } return td_rev; } @@ -1013,9 +1011,9 @@ rescan_this: if (modified) goto rescan_all; - } + } - /* maybe reenable control and bulk lists */ + /* maybe reenable control and bulk lists */ if (HC_IS_RUNNING(ohci_to_hcd(ohci)->state) && ohci_to_hcd(ohci)->state != HC_STATE_QUIESCING && !ohci->ed_rm_list) { @@ -1041,20 +1039,20 @@ rescan_this: &ohci->regs->ed_bulkcurrent); } } - + /* CLE/BLE to enable, CLF/BLF to (maybe) kickstart */ if (control) { ohci->hc_control |= control; if (ohci->flags & OHCI_QUIRK_ZFMICRO) mdelay(1); - ohci_writel (ohci, ohci->hc_control, - &ohci->regs->control); - } + ohci_writel (ohci, ohci->hc_control, + &ohci->regs->control); + } if (command) { if (ohci->flags & OHCI_QUIRK_ZFMICRO) mdelay(1); - ohci_writel (ohci, command, &ohci->regs->cmdstatus); - } + ohci_writel (ohci, command, &ohci->regs->cmdstatus); + } } } @@ -1074,19 +1072,19 @@ dl_done_list (struct ohci_hcd *ohci) { struct td *td = dl_reverse_done_list (ohci); - while (td) { + while (td) { struct td *td_next = td->next_dl_td; struct urb *urb = td->urb; urb_priv_t *urb_priv = urb->hcpriv; struct ed *ed = td->ed; /* update URB's length and status from TD */ - td_done (ohci, urb, td); - urb_priv->td_cnt++; + td_done (ohci, urb, td); + urb_priv->td_cnt++; /* If all this urb's TDs are done, call complete() */ - if (urb_priv->td_cnt == urb_priv->length) - finish_urb (ohci, urb); + if (urb_priv->td_cnt == urb_priv->length) + finish_urb (ohci, urb); /* clean schedule: unlink EDs that are no longer busy */ if (list_empty (&ed->td_list)) { @@ -1094,25 +1092,26 @@ dl_done_list (struct ohci_hcd *ohci) start_ed_unlink (ohci, ed); /* ... reenabling halted EDs only after fault cleanup */ - } else if ((ed->hwINFO & cpu_to_hc32 (ohci, ED_SKIP | ED_DEQUEUE)) + } else if ((ed->hwINFO & cpu_to_hc32 (ohci, + ED_SKIP | ED_DEQUEUE)) == cpu_to_hc32 (ohci, ED_SKIP)) { td = list_entry (ed->td_list.next, struct td, td_list); - if (!(td->hwINFO & cpu_to_hc32 (ohci, TD_DONE))) { + if (!(td->hwINFO & cpu_to_hc32 (ohci, TD_DONE))) { ed->hwINFO &= ~cpu_to_hc32 (ohci, ED_SKIP); /* ... hc may need waking-up */ switch (ed->type) { case PIPE_CONTROL: ohci_writel (ohci, OHCI_CLF, - &ohci->regs->cmdstatus); + &ohci->regs->cmdstatus); break; case PIPE_BULK: ohci_writel (ohci, OHCI_BLF, - &ohci->regs->cmdstatus); + &ohci->regs->cmdstatus); break; } } } - td = td_next; - } + td = td_next; + } } diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c index 59e436424d41..6829814b7aaf 100644 --- a/drivers/usb/host/ohci-s3c2410.c +++ b/drivers/usb/host/ohci-s3c2410.c @@ -447,7 +447,7 @@ static const struct hc_driver ohci_s3c2410_hc_driver = { */ .start = ohci_s3c2410_start, .stop = ohci_stop, - .shutdown = ohci_shutdown, + .shutdown = ohci_shutdown, /* * managing i/o requests and associated device resources @@ -492,7 +492,7 @@ static int ohci_hcd_s3c2410_drv_remove(struct platform_device *pdev) static struct platform_driver ohci_hcd_s3c2410_driver = { .probe = ohci_hcd_s3c2410_drv_probe, .remove = ohci_hcd_s3c2410_drv_remove, - .shutdown = usb_hcd_platform_shutdown, + .shutdown = usb_hcd_platform_shutdown, /*.suspend = ohci_hcd_s3c2410_drv_suspend, */ /*.resume = ohci_hcd_s3c2410_drv_resume, */ .driver = { @@ -501,15 +501,3 @@ static struct platform_driver ohci_hcd_s3c2410_driver = { }, }; -static int __init ohci_hcd_s3c2410_init (void) -{ - return platform_driver_register(&ohci_hcd_s3c2410_driver); -} - -static void __exit ohci_hcd_s3c2410_cleanup (void) -{ - platform_driver_unregister(&ohci_hcd_s3c2410_driver); -} - -module_init (ohci_hcd_s3c2410_init); -module_exit (ohci_hcd_s3c2410_cleanup); diff --git a/drivers/usb/host/ohci-sa1111.c b/drivers/usb/host/ohci-sa1111.c index 71371de32ada..0f48f2d99226 100644 --- a/drivers/usb/host/ohci-sa1111.c +++ b/drivers/usb/host/ohci-sa1111.c @@ -4,7 +4,7 @@ * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net> * (C) Copyright 2002 Hewlett-Packard Company - * + * * SA1111 Bus Glue * * Written by Christopher Hoover <ch@hpl.hp.com> @@ -12,7 +12,7 @@ * * This file is licenced under the GPL. */ - + #include <asm/hardware.h> #include <asm/mach-types.h> #include <asm/arch/assabet.h> @@ -31,7 +31,7 @@ static void sa1111_start_hc(struct sa1111_dev *dev) { unsigned int usb_rst = 0; - printk(KERN_DEBUG __FILE__ + printk(KERN_DEBUG __FILE__ ": starting SA-1111 OHCI USB Controller\n"); #ifdef CONFIG_SA1100_BADGE4 @@ -65,7 +65,7 @@ static void sa1111_start_hc(struct sa1111_dev *dev) static void sa1111_stop_hc(struct sa1111_dev *dev) { unsigned int usb_rst; - printk(KERN_DEBUG __FILE__ + printk(KERN_DEBUG __FILE__ ": stopping SA-1111 OHCI USB Controller\n"); /* @@ -269,19 +269,3 @@ static struct sa1111_driver ohci_hcd_sa1111_driver = { .remove = ohci_hcd_sa1111_drv_remove, }; -static int __init ohci_hcd_sa1111_init (void) -{ - dbg (DRIVER_INFO " (SA-1111)"); - dbg ("block sizes: ed %d td %d", - sizeof (struct ed), sizeof (struct td)); - - return sa1111_driver_register(&ohci_hcd_sa1111_driver); -} - -static void __exit ohci_hcd_sa1111_cleanup (void) -{ - sa1111_driver_unregister(&ohci_hcd_sa1111_driver); -} - -module_init (ohci_hcd_sa1111_init); -module_exit (ohci_hcd_sa1111_cleanup); diff --git a/drivers/usb/host/ohci.h b/drivers/usb/host/ohci.h index a2f42a2f47c6..c2b5ecfe5e9f 100644 --- a/drivers/usb/host/ohci.h +++ b/drivers/usb/host/ohci.h @@ -1,9 +1,9 @@ /* * OHCI HCD (Host Controller Driver) for USB. - * + * * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net> - * + * * This file is licenced under the GPL. */ @@ -14,7 +14,7 @@ */ typedef __u32 __bitwise __hc32; typedef __u16 __bitwise __hc16; - + /* * OHCI Endpoint Descriptor (ED) ... holds TD queue * See OHCI spec, section 4.2 @@ -24,7 +24,7 @@ typedef __u16 __bitwise __hc16; */ struct ed { /* first fields are hardware-specified */ - __hc32 hwINFO; /* endpoint config bitmap */ + __hc32 hwINFO; /* endpoint config bitmap */ /* info bits defined by hcd */ #define ED_DEQUEUE (1 << 27) /* info bits defined by the hardware */ @@ -52,11 +52,11 @@ struct ed { * usually: OPER --> UNLINK --> (IDLE | OPER) --> ... */ u8 state; /* ED_{IDLE,UNLINK,OPER} */ -#define ED_IDLE 0x00 /* NOT linked to HC */ -#define ED_UNLINK 0x01 /* being unlinked from hc */ +#define ED_IDLE 0x00 /* NOT linked to HC */ +#define ED_UNLINK 0x01 /* being unlinked from hc */ #define ED_OPER 0x02 /* IS linked to hc */ - u8 type; /* PIPE_{BULK,...} */ + u8 type; /* PIPE_{BULK,...} */ /* periodic scheduling params (for intr and iso) */ u8 branch; @@ -70,7 +70,7 @@ struct ed { #define ED_MASK ((u32)~0x0f) /* strip hw status in low addr bits */ - + /* * OHCI Transfer Descriptor (TD) ... one per transfer segment * See OHCI spec, sections 4.3.1 (general = control/bulk/interrupt) @@ -107,22 +107,22 @@ struct td { /* (no hwINFO #defines yet for iso tds) */ - __hc32 hwCBP; /* Current Buffer Pointer (or 0) */ - __hc32 hwNextTD; /* Next TD Pointer */ - __hc32 hwBE; /* Memory Buffer End Pointer */ + __hc32 hwCBP; /* Current Buffer Pointer (or 0) */ + __hc32 hwNextTD; /* Next TD Pointer */ + __hc32 hwBE; /* Memory Buffer End Pointer */ /* PSW is only for ISO. Only 1 PSW entry is used, but on * big-endian PPC hardware that's the second entry. */ #define MAXPSW 2 - __hc16 hwPSW [MAXPSW]; + __hc16 hwPSW [MAXPSW]; /* rest are purely for the driver's use */ - __u8 index; - struct ed *ed; - struct td *td_hash; /* dma-->td hashtable */ - struct td *next_dl_td; - struct urb *urb; + __u8 index; + struct ed *ed; + struct td *td_hash; /* dma-->td hashtable */ + struct td *next_dl_td; + struct urb *urb; dma_addr_t td_dma; /* addr of this TD */ dma_addr_t data_dma; /* addr of data it points to */ @@ -152,8 +152,8 @@ struct td { #define TD_NOTACCESSED 0x0F -/* map OHCI TD status codes (CC) to errno values */ -static const int cc_to_error [16] = { +/* map OHCI TD status codes (CC) to errno values */ +static const int cc_to_error [16] = { /* No Error */ 0, /* CRC Error */ -EILSEQ, /* Bit Stuff */ -EPROTO, @@ -169,7 +169,7 @@ static const int cc_to_error [16] = { /* BufferOver */ -ECOMM, /* BuffUnder */ -ENOSR, /* (for HCD) */ -EALREADY, - /* (for HCD) */ -EALREADY + /* (for HCD) */ -EALREADY }; @@ -182,7 +182,7 @@ struct ohci_hcca { #define NUM_INTS 32 __hc32 int_table [NUM_INTS]; /* periodic schedule */ - /* + /* * OHCI defines u16 frame_no, followed by u16 zero pad. * Since some processors can't do 16 bit bus accesses, * portable access must be a 32 bits wide. @@ -262,10 +262,10 @@ struct ohci_regs { * HcCommandStatus (cmdstatus) register masks */ #define OHCI_HCR (1 << 0) /* host controller reset */ -#define OHCI_CLF (1 << 1) /* control list filled */ -#define OHCI_BLF (1 << 2) /* bulk list filled */ -#define OHCI_OCR (1 << 3) /* ownership change request */ -#define OHCI_SOC (3 << 16) /* scheduling overrun count */ +#define OHCI_CLF (1 << 1) /* control list filled */ +#define OHCI_BLF (1 << 2) /* bulk list filled */ +#define OHCI_OCR (1 << 3) /* ownership change request */ +#define OHCI_SOC (3 << 16) /* scheduling overrun count */ /* * masks used with interrupt registers: @@ -285,20 +285,20 @@ struct ohci_regs { /* OHCI ROOT HUB REGISTER MASKS */ - + /* roothub.portstatus [i] bits */ -#define RH_PS_CCS 0x00000001 /* current connect status */ -#define RH_PS_PES 0x00000002 /* port enable status*/ -#define RH_PS_PSS 0x00000004 /* port suspend status */ -#define RH_PS_POCI 0x00000008 /* port over current indicator */ -#define RH_PS_PRS 0x00000010 /* port reset status */ -#define RH_PS_PPS 0x00000100 /* port power status */ -#define RH_PS_LSDA 0x00000200 /* low speed device attached */ -#define RH_PS_CSC 0x00010000 /* connect status change */ -#define RH_PS_PESC 0x00020000 /* port enable status change */ -#define RH_PS_PSSC 0x00040000 /* port suspend status change */ -#define RH_PS_OCIC 0x00080000 /* over current indicator change */ -#define RH_PS_PRSC 0x00100000 /* port reset status change */ +#define RH_PS_CCS 0x00000001 /* current connect status */ +#define RH_PS_PES 0x00000002 /* port enable status*/ +#define RH_PS_PSS 0x00000004 /* port suspend status */ +#define RH_PS_POCI 0x00000008 /* port over current indicator */ +#define RH_PS_PRS 0x00000010 /* port reset status */ +#define RH_PS_PPS 0x00000100 /* port power status */ +#define RH_PS_LSDA 0x00000200 /* low speed device attached */ +#define RH_PS_CSC 0x00010000 /* connect status change */ +#define RH_PS_PESC 0x00020000 /* port enable status change */ +#define RH_PS_PSSC 0x00040000 /* port suspend status change */ +#define RH_PS_OCIC 0x00080000 /* over current indicator change */ +#define RH_PS_PRSC 0x00100000 /* port reset status change */ /* roothub.status bits */ #define RH_HS_LPS 0x00000001 /* local power status */ @@ -333,7 +333,7 @@ typedef struct urb_priv { } urb_priv_t; #define TD_HASH_SIZE 64 /* power'o'two */ -// sizeof (struct td) ~= 64 == 2^6 ... +// sizeof (struct td) ~= 64 == 2^6 ... #define TD_HASH_FUNC(td_dma) ((td_dma ^ (td_dma >> 6)) % TD_HASH_SIZE) @@ -364,11 +364,11 @@ struct ohci_hcd { struct ed *ed_bulktail; /* last in bulk list */ struct ed *ed_controltail; /* last in ctrl list */ - struct ed *periodic [NUM_INTS]; /* shadow int_table */ + struct ed *periodic [NUM_INTS]; /* shadow int_table */ /* * OTG controllers and transceivers need software interaction; - * other external transceivers should be software-transparent + * other external transceivers should be software-transparent */ struct otg_transceiver *transceiver; @@ -385,7 +385,7 @@ struct ohci_hcd { */ int num_ports; int load [NUM_INTS]; - u32 hc_control; /* copy of hc control reg */ + u32 hc_control; /* copy of hc control reg */ unsigned long next_statechange; /* suspend/resume */ u32 fminterval; /* saved register */ unsigned autostop:1; /* rh auto stopping/stopped */ @@ -394,8 +394,9 @@ struct ohci_hcd { #define OHCI_QUIRK_AMD756 0x01 /* erratum #4 */ #define OHCI_QUIRK_SUPERIO 0x02 /* natsemi */ #define OHCI_QUIRK_INITRESET 0x04 /* SiS, OPTi, ... */ -#define OHCI_BIG_ENDIAN 0x08 /* big endian HC */ -#define OHCI_QUIRK_ZFMICRO 0x10 /* Compaq ZFMicro chipset*/ +#define OHCI_QUIRK_BE_DESC 0x08 /* BE descriptors */ +#define OHCI_QUIRK_BE_MMIO 0x10 /* BE registers */ +#define OHCI_QUIRK_ZFMICRO 0x20 /* Compaq ZFMicro chipset*/ // there are also chip quirks/bugs in init logic }; @@ -439,117 +440,164 @@ static inline struct usb_hcd *ohci_to_hcd (const struct ohci_hcd *ohci) * a minority (notably the IBM STB04XXX and the Motorola MPC5200 * processors) implement them in big endian format. * + * In addition some more exotic implementations like the Toshiba + * Spider (aka SCC) cell southbridge are "mixed" endian, that is, + * they have a different endianness for registers vs. in-memory + * descriptors. + * * This attempts to support either format at compile time without a * runtime penalty, or both formats with the additional overhead * of checking a flag bit. + * + * That leads to some tricky Kconfig rules howevber. There are + * different defaults based on some arch/ppc platforms, though + * the basic rules are: + * + * Controller type Kconfig options needed + * --------------- ---------------------- + * little endian CONFIG_USB_OHCI_LITTLE_ENDIAN + * + * fully big endian CONFIG_USB_OHCI_BIG_ENDIAN_DESC _and_ + * CONFIG_USB_OHCI_BIG_ENDIAN_MMIO + * + * mixed endian CONFIG_USB_OHCI_LITTLE_ENDIAN _and_ + * CONFIG_USB_OHCI_BIG_ENDIAN_{MMIO,DESC} + * + * (If you have a mixed endian controller, you -must- also define + * CONFIG_USB_OHCI_LITTLE_ENDIAN or things will not work when building + * both your mixed endian and a fully big endian controller support in + * the same kernel image). */ -#ifdef CONFIG_USB_OHCI_BIG_ENDIAN +#ifdef CONFIG_USB_OHCI_BIG_ENDIAN_DESC +#ifdef CONFIG_USB_OHCI_LITTLE_ENDIAN +#define big_endian_desc(ohci) (ohci->flags & OHCI_QUIRK_BE_DESC) +#else +#define big_endian_desc(ohci) 1 /* only big endian */ +#endif +#else +#define big_endian_desc(ohci) 0 /* only little endian */ +#endif +#ifdef CONFIG_USB_OHCI_BIG_ENDIAN_MMIO #ifdef CONFIG_USB_OHCI_LITTLE_ENDIAN -#define big_endian(ohci) (ohci->flags & OHCI_BIG_ENDIAN) /* either */ +#define big_endian_mmio(ohci) (ohci->flags & OHCI_QUIRK_BE_MMIO) +#else +#define big_endian_mmio(ohci) 1 /* only big endian */ +#endif #else -#define big_endian(ohci) 1 /* only big endian */ +#define big_endian_mmio(ohci) 0 /* only little endian */ #endif /* * Big-endian read/write functions are arch-specific. * Other arches can be added if/when they're needed. + * + * REVISIT: arch/powerpc now has readl/writel_be, so the + * definition below can die once the STB04xxx support is + * finally ported over. */ -#if defined(CONFIG_PPC) +#if defined(CONFIG_PPC) && !defined(CONFIG_PPC_MERGE) #define readl_be(addr) in_be32((__force unsigned *)addr) #define writel_be(val, addr) out_be32((__force unsigned *)addr, val) #endif -static inline unsigned int ohci_readl (const struct ohci_hcd *ohci, - __hc32 __iomem * regs) +static inline unsigned int _ohci_readl (const struct ohci_hcd *ohci, + __hc32 __iomem * regs) { - return big_endian(ohci) ? readl_be (regs) : readl ((__force u32 *)regs); +#ifdef CONFIG_USB_OHCI_BIG_ENDIAN_MMIO + return big_endian_mmio(ohci) ? + readl_be (regs) : + readl (regs); +#else + return readl (regs); +#endif } -static inline void ohci_writel (const struct ohci_hcd *ohci, - const unsigned int val, __hc32 __iomem *regs) +static inline void _ohci_writel (const struct ohci_hcd *ohci, + const unsigned int val, __hc32 __iomem *regs) { - big_endian(ohci) ? writel_be (val, regs) : - writel (val, (__force u32 *)regs); +#ifdef CONFIG_USB_OHCI_BIG_ENDIAN_MMIO + big_endian_mmio(ohci) ? + writel_be (val, regs) : + writel (val, regs); +#else + writel (val, regs); +#endif } -#else /* !CONFIG_USB_OHCI_BIG_ENDIAN */ - -#define big_endian(ohci) 0 /* only little endian */ - #ifdef CONFIG_ARCH_LH7A404 - /* Marc Singer: at the time this code was written, the LH7A404 - * had a problem reading the USB host registers. This - * implementation of the ohci_readl function performs the read - * twice as a work-around. - */ -static inline unsigned int -ohci_readl (const struct ohci_hcd *ohci, const __hc32 *regs) -{ - *(volatile __force unsigned int*) regs; - return *(volatile __force unsigned int*) regs; -} +/* Marc Singer: at the time this code was written, the LH7A404 + * had a problem reading the USB host registers. This + * implementation of the ohci_readl function performs the read + * twice as a work-around. + */ +#define ohci_readl(o,r) (_ohci_readl(o,r),_ohci_readl(o,r)) +#define ohci_writel(o,v,r) _ohci_writel(o,v,r) #else - /* Standard version of ohci_readl uses standard, platform - * specific implementation. */ -static inline unsigned int -ohci_readl (const struct ohci_hcd *ohci, __hc32 __iomem * regs) -{ - return readl(regs); -} +#define ohci_readl(o,r) _ohci_readl(o,r) +#define ohci_writel(o,v,r) _ohci_writel(o,v,r) #endif -static inline void ohci_writel (const struct ohci_hcd *ohci, - const unsigned int val, __hc32 __iomem *regs) -{ - writel (val, regs); -} - -#endif /* !CONFIG_USB_OHCI_BIG_ENDIAN */ /*-------------------------------------------------------------------------*/ /* cpu to ohci */ static inline __hc16 cpu_to_hc16 (const struct ohci_hcd *ohci, const u16 x) { - return big_endian(ohci) ? (__force __hc16)cpu_to_be16(x) : (__force __hc16)cpu_to_le16(x); + return big_endian_desc(ohci) ? + (__force __hc16)cpu_to_be16(x) : + (__force __hc16)cpu_to_le16(x); } static inline __hc16 cpu_to_hc16p (const struct ohci_hcd *ohci, const u16 *x) { - return big_endian(ohci) ? cpu_to_be16p(x) : cpu_to_le16p(x); + return big_endian_desc(ohci) ? + cpu_to_be16p(x) : + cpu_to_le16p(x); } static inline __hc32 cpu_to_hc32 (const struct ohci_hcd *ohci, const u32 x) { - return big_endian(ohci) ? (__force __hc32)cpu_to_be32(x) : (__force __hc32)cpu_to_le32(x); + return big_endian_desc(ohci) ? + (__force __hc32)cpu_to_be32(x) : + (__force __hc32)cpu_to_le32(x); } static inline __hc32 cpu_to_hc32p (const struct ohci_hcd *ohci, const u32 *x) { - return big_endian(ohci) ? cpu_to_be32p(x) : cpu_to_le32p(x); + return big_endian_desc(ohci) ? + cpu_to_be32p(x) : + cpu_to_le32p(x); } /* ohci to cpu */ static inline u16 hc16_to_cpu (const struct ohci_hcd *ohci, const __hc16 x) { - return big_endian(ohci) ? be16_to_cpu((__force __be16)x) : le16_to_cpu((__force __le16)x); + return big_endian_desc(ohci) ? + be16_to_cpu((__force __be16)x) : + le16_to_cpu((__force __le16)x); } static inline u16 hc16_to_cpup (const struct ohci_hcd *ohci, const __hc16 *x) { - return big_endian(ohci) ? be16_to_cpup((__force __be16 *)x) : le16_to_cpup((__force __le16 *)x); + return big_endian_desc(ohci) ? + be16_to_cpup((__force __be16 *)x) : + le16_to_cpup((__force __le16 *)x); } static inline u32 hc32_to_cpu (const struct ohci_hcd *ohci, const __hc32 x) { - return big_endian(ohci) ? be32_to_cpu((__force __be32)x) : le32_to_cpu((__force __le32)x); + return big_endian_desc(ohci) ? + be32_to_cpu((__force __be32)x) : + le32_to_cpu((__force __le32)x); } static inline u32 hc32_to_cpup (const struct ohci_hcd *ohci, const __hc32 *x) { - return big_endian(ohci) ? be32_to_cpup((__force __be32 *)x) : le32_to_cpup((__force __le32 *)x); + return big_endian_desc(ohci) ? + be32_to_cpup((__force __be32 *)x) : + le32_to_cpup((__force __le32 *)x); } /*-------------------------------------------------------------------------*/ @@ -557,6 +605,9 @@ static inline u32 hc32_to_cpup (const struct ohci_hcd *ohci, const __hc32 *x) /* HCCA frame number is 16 bits, but is accessed as 32 bits since not all * hardware handles 16 bit reads. That creates a different confusion on * some big-endian SOC implementations. Same thing happens with PSW access. + * + * FIXME: Deal with that as a runtime quirk when STB03xxx is ported over + * to arch/powerpc */ #ifdef CONFIG_STB03xxx @@ -568,7 +619,7 @@ static inline u32 hc32_to_cpup (const struct ohci_hcd *ohci, const __hc32 *x) static inline u16 ohci_frame_no(const struct ohci_hcd *ohci) { u32 tmp; - if (big_endian(ohci)) { + if (big_endian_desc(ohci)) { tmp = be32_to_cpup((__force __be32 *)&ohci->hcca->frame_no); tmp >>= OHCI_BE_FRAME_NO_SHIFT; } else @@ -580,7 +631,7 @@ static inline u16 ohci_frame_no(const struct ohci_hcd *ohci) static inline __hc16 *ohci_hwPSWp(const struct ohci_hcd *ohci, const struct td *td, int index) { - return (__hc16 *)(big_endian(ohci) ? + return (__hc16 *)(big_endian_desc(ohci) ? &td->hwPSW[index ^ 1] : &td->hwPSW[index]); } @@ -598,11 +649,11 @@ static inline void disable (struct ohci_hcd *ohci) } #define FI 0x2edf /* 12000 bits per frame (-1) */ -#define FSMP(fi) (0x7fff & ((6 * ((fi) - 210)) / 7)) +#define FSMP(fi) (0x7fff & ((6 * ((fi) - 210)) / 7)) #define FIT (1 << 31) #define LSTHRESH 0x628 /* lowspeed bit threshold */ -static void periodic_reinit (struct ohci_hcd *ohci) +static inline void periodic_reinit (struct ohci_hcd *ohci) { u32 fi = ohci->fminterval & 0x03fff; u32 fit = ohci_readl(ohci, &ohci->regs->fminterval) & FIT; @@ -626,11 +677,11 @@ static void periodic_reinit (struct ohci_hcd *ohci) temp = ohci_readl (hc, &hc->regs->roothub.register); \ temp; }) -static u32 roothub_a (struct ohci_hcd *hc) +static inline u32 roothub_a (struct ohci_hcd *hc) { return read_roothub (hc, a, 0xfc0fe000); } static inline u32 roothub_b (struct ohci_hcd *hc) { return ohci_readl (hc, &hc->regs->roothub.b); } static inline u32 roothub_status (struct ohci_hcd *hc) { return ohci_readl (hc, &hc->regs->roothub.status); } -static u32 roothub_portstatus (struct ohci_hcd *hc, int i) +static inline u32 roothub_portstatus (struct ohci_hcd *hc, int i) { return read_roothub (hc, portstatus [i], 0xffe0fce0); } diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c index a9d7119e3176..a7fa0d75567d 100644 --- a/drivers/usb/host/u132-hcd.c +++ b/drivers/usb/host/u132-hcd.c @@ -40,6 +40,7 @@ #include <linux/moduleparam.h> #include <linux/delay.h> #include <linux/ioport.h> +#include <linux/pci_ids.h> #include <linux/sched.h> #include <linux/slab.h> #include <linux/smp_lock.h> @@ -210,15 +211,16 @@ struct u132 { * these cannot be inlines because we need the structure offset!! * Does anyone have a better way????? */ +#define ftdi_read_pcimem(pdev, member, data) usb_ftdi_elan_read_pcimem(pdev, \ + offsetof(struct ohci_regs, member), 0, data); +#define ftdi_write_pcimem(pdev, member, data) usb_ftdi_elan_write_pcimem(pdev, \ + offsetof(struct ohci_regs, member), 0, data); #define u132_read_pcimem(u132, member, data) \ usb_ftdi_elan_read_pcimem(u132->platform_dev, offsetof(struct \ ohci_regs, member), 0, data); #define u132_write_pcimem(u132, member, data) \ usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \ ohci_regs, member), 0, data); -#define u132_write_pcimem_byte(u132, member, data) \ - usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \ - ohci_regs, member), 0x0e, data); static inline struct u132 *udev_to_u132(struct u132_udev *udev) { u8 udev_number = udev->udev_number; @@ -1574,59 +1576,12 @@ static char *hcfs2string(int state) return "?"; } -static int u132_usb_reset(struct u132 *u132) -{ - int retval; - retval = u132_read_pcimem(u132, control, &u132->hc_control); - if (retval) - return retval; - u132->hc_control &= OHCI_CTRL_RWC; - retval = u132_write_pcimem(u132, control, u132->hc_control); - if (retval) - return retval; - return 0; -} - static int u132_init(struct u132 *u132) { int retval; u32 control; u132_disable(u132); - u132->next_statechange = - jiffies; /* SMM owns the HC? not for long! */ { - u32 control; - retval = u132_read_pcimem(u132, control, &control); - if (retval) - return retval; - if (control & OHCI_CTRL_IR) { - u32 temp = 50; - retval = u132_write_pcimem(u132, intrenable, - OHCI_INTR_OC); - if (retval) - return retval; - retval = u132_write_pcimem_byte(u132, cmdstatus, - OHCI_OCR); - if (retval) - return retval; - check:{ - retval = u132_read_pcimem(u132, control, - &control); - if (retval) - return retval; - } - if (control & OHCI_CTRL_IR) { - msleep(10); - if (--temp == 0) { - dev_err(&u132->platform_dev->dev, "USB " - "HC takeover failed!(BIOS/SMM b" - "ug) control=%08X\n", control); - return -EBUSY; - } - goto check; - } - u132_usb_reset(u132); - } - } + u132->next_statechange = jiffies; retval = u132_write_pcimem(u132, intrdisable, OHCI_INTR_MIE); if (retval) return retval; @@ -1725,7 +1680,7 @@ static int u132_run(struct u132 *u132) retry:retval = u132_read_pcimem(u132, cmdstatus, &status); if (retval) return retval; - retval = u132_write_pcimem_byte(u132, cmdstatus, OHCI_HCR); + retval = u132_write_pcimem(u132, cmdstatus, OHCI_HCR); if (retval) return retval; extra:{ @@ -1782,7 +1737,7 @@ static int u132_run(struct u132 *u132) retval = u132_write_pcimem(u132, control, u132->hc_control); if (retval) return retval; - retval = u132_write_pcimem_byte(u132, cmdstatus, OHCI_BLF); + retval = u132_write_pcimem(u132, cmdstatus, OHCI_BLF); if (retval) return retval; retval = u132_read_pcimem(u132, cmdstatus, &cmdstatus); @@ -1839,8 +1794,8 @@ static void u132_hcd_stop(struct usb_hcd *hcd) { struct u132 *u132 = hcd_to_u132(hcd); if (u132->going > 1) { - dev_err(&u132->platform_dev->dev, "device has been removed %d\n" - , u132->going); + dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p) has b" + "een removed %d\n", u132, hcd, u132->going); } else if (u132->going > 0) { dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov" "ed\n", hcd); @@ -2545,8 +2500,9 @@ static void u132_endpoint_disable(struct usb_hcd *hcd, { struct u132 *u132 = hcd_to_u132(hcd); if (u132->going > 2) { - dev_err(&u132->platform_dev->dev, "device has been removed %d\n" - , u132->going); + dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p hep=%p" + ") has been removed %d\n", u132, hcd, hep, + u132->going); } else { struct u132_endp *endp = hep->hcpriv; if (endp) @@ -2790,7 +2746,6 @@ static int u132_hub_status_data(struct usb_hcd *hcd, char *buf) } else if (u132->going > 0) { dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov" "ed\n", hcd); - dump_stack(); return -ESHUTDOWN; } else { int i, changed = 0, length = 1; @@ -3034,12 +2989,15 @@ static int __devexit u132_remove(struct platform_device *pdev) struct usb_hcd *hcd = platform_get_drvdata(pdev); if (hcd) { struct u132 *u132 = hcd_to_u132(hcd); - dump_stack(); if (u132->going++ > 1) { + dev_err(&u132->platform_dev->dev, "already being remove" + "d\n"); return -ENODEV; } else { int rings = MAX_U132_RINGS; int endps = MAX_U132_ENDPS; + dev_err(&u132->platform_dev->dev, "removing device u132" + ".%d\n", u132->sequence_num); msleep(100); down(&u132->sw_lock); u132_monitor_cancel_work(u132); @@ -3121,10 +3079,24 @@ static void u132_initialise(struct u132 *u132, struct platform_device *pdev) static int __devinit u132_probe(struct platform_device *pdev) { struct usb_hcd *hcd; + int retval; + u32 control; + u32 rh_a = -1; + u32 num_ports; msleep(100); if (u132_exiting > 0) { return -ENODEV; - } /* refuse to confuse usbcore */ + } + retval = ftdi_write_pcimem(pdev, intrdisable, OHCI_INTR_MIE); + if (retval) + return retval; + retval = ftdi_read_pcimem(pdev, control, &control); + if (retval) + return retval; + retval = ftdi_read_pcimem(pdev, roothub.a, &rh_a); + if (retval) + return retval; + num_ports = rh_a & RH_A_NDP; /* refuse to confuse usbcore */ if (pdev->dev.dma_mask) { return -EINVAL; } diff --git a/drivers/usb/host/uhci-debug.c b/drivers/usb/host/uhci-debug.c index e345f15b7d87..5d6c06bc4524 100644 --- a/drivers/usb/host/uhci-debug.c +++ b/drivers/usb/host/uhci-debug.c @@ -168,9 +168,13 @@ static int uhci_show_qh(struct uhci_qh *qh, char *buf, int len, int space) space, "", qh, qtype, le32_to_cpu(qh->link), le32_to_cpu(element)); if (qh->type == USB_ENDPOINT_XFER_ISOC) - out += sprintf(out, "%*s period %d frame %x desc [%p]\n", - space, "", qh->period, qh->iso_frame, - qh->iso_packet_desc); + out += sprintf(out, "%*s period %d phase %d load %d us, " + "frame %x desc [%p]\n", + space, "", qh->period, qh->phase, qh->load, + qh->iso_frame, qh->iso_packet_desc); + else if (qh->type == USB_ENDPOINT_XFER_INT) + out += sprintf(out, "%*s period %d phase %d load %d us\n", + space, "", qh->period, qh->phase, qh->load); if (element & UHCI_PTR_QH) out += sprintf(out, "%*s Element points to QH (bug?)\n", space, ""); @@ -208,7 +212,7 @@ static int uhci_show_qh(struct uhci_qh *qh, char *buf, int len, int space) space, "", nurbs); } - if (qh->udev) { + if (qh->dummy_td) { out += sprintf(out, "%*s Dummy TD\n", space, ""); out += uhci_show_td(qh->dummy_td, out, len - (out - buf), 0); } @@ -347,31 +351,80 @@ static int uhci_sprint_schedule(struct uhci_hcd *uhci, char *buf, int len) struct uhci_qh *qh; struct uhci_td *td; struct list_head *tmp, *head; + int nframes, nerrs; out += uhci_show_root_hub_state(uhci, out, len - (out - buf)); out += sprintf(out, "HC status\n"); out += uhci_show_status(uhci, out, len - (out - buf)); + + out += sprintf(out, "Periodic load table\n"); + for (i = 0; i < MAX_PHASE; ++i) { + out += sprintf(out, "\t%d", uhci->load[i]); + if (i % 8 == 7) + *out++ = '\n'; + } + out += sprintf(out, "Total: %d, #INT: %d, #ISO: %d\n", + uhci->total_load, + uhci_to_hcd(uhci)->self.bandwidth_int_reqs, + uhci_to_hcd(uhci)->self.bandwidth_isoc_reqs); if (debug <= 1) return out - buf; out += sprintf(out, "Frame List\n"); + nframes = 10; + nerrs = 0; for (i = 0; i < UHCI_NUMFRAMES; ++i) { + __le32 link, qh_dma; + + j = 0; td = uhci->frame_cpu[i]; + link = uhci->frame[i]; if (!td) - continue; + goto check_link; - out += sprintf(out, "- Frame %d\n", i); \ - if (td->dma_handle != (dma_addr_t)uhci->frame[i]) - out += sprintf(out, " frame list does not match td->dma_handle!\n"); + if (nframes > 0) { + out += sprintf(out, "- Frame %d -> (%08x)\n", + i, le32_to_cpu(link)); + j = 1; + } head = &td->fl_list; tmp = head; do { td = list_entry(tmp, struct uhci_td, fl_list); tmp = tmp->next; - out += uhci_show_td(td, out, len - (out - buf), 4); + if (cpu_to_le32(td->dma_handle) != link) { + if (nframes > 0) + out += sprintf(out, " link does " + "not match list entry!\n"); + else + ++nerrs; + } + if (nframes > 0) + out += uhci_show_td(td, out, + len - (out - buf), 4); + link = td->link; } while (tmp != head); + +check_link: + qh_dma = uhci_frame_skel_link(uhci, i); + if (link != qh_dma) { + if (nframes > 0) { + if (!j) { + out += sprintf(out, + "- Frame %d -> (%08x)\n", + i, le32_to_cpu(link)); + j = 1; + } + out += sprintf(out, " link does not match " + "QH (%08x)!\n", le32_to_cpu(qh_dma)); + } else + ++nerrs; + } + nframes -= j; } + if (nerrs > 0) + out += sprintf(out, "Skipped %d bad links\n", nerrs); out += sprintf(out, "Skeleton QHs\n"); diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c index e87692c31be4..49b9d390b95f 100644 --- a/drivers/usb/host/uhci-hcd.c +++ b/drivers/usb/host/uhci-hcd.c @@ -60,6 +60,11 @@ Randy Dunlap, Georg Acher, Deti Fliegl, Thomas Sailer, Roman Weissgaerber, \ Alan Stern" #define DRIVER_DESC "USB Universal Host Controller Interface driver" +/* for flakey hardware, ignore overcurrent indicators */ +static int ignore_oc; +module_param(ignore_oc, bool, S_IRUGO); +MODULE_PARM_DESC(ignore_oc, "ignore hardware overcurrent indications"); + /* * debug = 0, no debugging messages * debug = 1, dump failed URBs except for stalls @@ -87,6 +92,34 @@ static void suspend_rh(struct uhci_hcd *uhci, enum uhci_rh_state new_state); static void wakeup_rh(struct uhci_hcd *uhci); static void uhci_get_current_frame_number(struct uhci_hcd *uhci); +/* + * Calculate the link pointer DMA value for the first Skeleton QH in a frame. + */ +static __le32 uhci_frame_skel_link(struct uhci_hcd *uhci, int frame) +{ + int skelnum; + + /* + * The interrupt queues will be interleaved as evenly as possible. + * There's not much to be done about period-1 interrupts; they have + * to occur in every frame. But we can schedule period-2 interrupts + * in odd-numbered frames, period-4 interrupts in frames congruent + * to 2 (mod 4), and so on. This way each frame only has two + * interrupt QHs, which will help spread out bandwidth utilization. + * + * ffs (Find First bit Set) does exactly what we need: + * 1,3,5,... => ffs = 0 => use skel_int2_qh = skelqh[8], + * 2,6,10,... => ffs = 1 => use skel_int4_qh = skelqh[7], etc. + * ffs >= 7 => not on any high-period queue, so use + * skel_int1_qh = skelqh[9]. + * Add in UHCI_NUMFRAMES to insure at least one bit is set. + */ + skelnum = 8 - (int) __ffs(frame | UHCI_NUMFRAMES); + if (skelnum <= 1) + skelnum = 9; + return UHCI_PTR_QH | cpu_to_le32(uhci->skelqh[skelnum]->dma_handle); +} + #include "uhci-debug.c" #include "uhci-q.c" #include "uhci-hub.c" @@ -169,6 +202,11 @@ static int resume_detect_interrupts_are_broken(struct uhci_hcd *uhci) { int port; + /* If we have to ignore overcurrent events then almost by definition + * we can't depend on resume-detect interrupts. */ + if (ignore_oc) + return 1; + switch (to_pci_dev(uhci_dev(uhci))->vendor) { default: break; @@ -199,24 +237,16 @@ static int resume_detect_interrupts_are_broken(struct uhci_hcd *uhci) static int remote_wakeup_is_broken(struct uhci_hcd *uhci) { - static struct dmi_system_id broken_wakeup_table[] = { - { - .ident = "Asus A7V8X", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK"), - DMI_MATCH(DMI_BOARD_NAME, "A7V8X"), - DMI_MATCH(DMI_BOARD_VERSION, "REV 1.xx"), - } - }, - { } - }; int port; + char *sys_info; + static char bad_Asus_board[] = "A7V8X"; /* One of Asus's motherboards has a bug which causes it to * wake up immediately from suspend-to-RAM if any of the ports * are connected. In such cases we will not set EGSM. */ - if (dmi_check_system(broken_wakeup_table)) { + sys_info = dmi_get_system_info(DMI_BOARD_NAME); + if (sys_info && !strcmp(sys_info, bad_Asus_board)) { for (port = 0; port < uhci->rh_numports; ++port) { if (inw(uhci->io_addr + USBPORTSC1 + port * 2) & USBPORTSC_CCS) @@ -255,7 +285,9 @@ __acquires(uhci->lock) int_enable = USBINTR_RESUME; if (remote_wakeup_is_broken(uhci)) egsm_enable = 0; - if (resume_detect_interrupts_are_broken(uhci) || !egsm_enable) + if (resume_detect_interrupts_are_broken(uhci) || !egsm_enable || + !device_may_wakeup( + &uhci_to_hcd(uhci)->self.root_hub->dev)) uhci->working_RD = int_enable = 0; outw(int_enable, uhci->io_addr + USBINTR); @@ -627,32 +659,11 @@ static int uhci_start(struct usb_hcd *hcd) /* * Fill the frame list: make all entries point to the proper * interrupt queue. - * - * The interrupt queues will be interleaved as evenly as possible. - * There's not much to be done about period-1 interrupts; they have - * to occur in every frame. But we can schedule period-2 interrupts - * in odd-numbered frames, period-4 interrupts in frames congruent - * to 2 (mod 4), and so on. This way each frame only has two - * interrupt QHs, which will help spread out bandwidth utilization. */ for (i = 0; i < UHCI_NUMFRAMES; i++) { - int irq; - - /* - * ffs (Find First bit Set) does exactly what we need: - * 1,3,5,... => ffs = 0 => use skel_int2_qh = skelqh[8], - * 2,6,10,... => ffs = 1 => use skel_int4_qh = skelqh[7], etc. - * ffs >= 7 => not on any high-period queue, so use - * skel_int1_qh = skelqh[9]. - * Add UHCI_NUMFRAMES to insure at least one bit is set. - */ - irq = 8 - (int) __ffs(i + UHCI_NUMFRAMES); - if (irq <= 1) - irq = 9; /* Only place we don't use the frame list routines */ - uhci->frame[i] = UHCI_PTR_QH | - cpu_to_le32(uhci->skelqh[irq]->dma_handle); + uhci->frame[i] = uhci_frame_skel_link(uhci, i); } /* @@ -921,7 +932,8 @@ static int __init uhci_hcd_init(void) { int retval = -ENOMEM; - printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION "\n"); + printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION "%s\n", + ignore_oc ? ", overcurrent ignored" : ""); if (usb_disabled()) return -ENODEV; diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h index 108e3de2dc26..74469b5bcb61 100644 --- a/drivers/usb/host/uhci-hcd.h +++ b/drivers/usb/host/uhci-hcd.h @@ -83,6 +83,7 @@ #define UHCI_MAX_SOF_NUMBER 2047 /* in an SOF packet */ #define CAN_SCHEDULE_FRAMES 1000 /* how far in the future frames * can be scheduled */ +#define MAX_PHASE 32 /* Periodic scheduling length */ /* When no queues need Full-Speed Bandwidth Reclamation, * delay this long before turning FSBR off */ @@ -141,6 +142,8 @@ struct uhci_qh { unsigned long advance_jiffies; /* Time of last queue advance */ unsigned int unlink_frame; /* When the QH was unlinked */ unsigned int period; /* For Interrupt and Isochronous QHs */ + short phase; /* Between 0 and period-1 */ + short load; /* Periodic time requirement, in us */ unsigned int iso_frame; /* Frame # for iso_packet_desc */ int iso_status; /* Status for Isochronous URBs */ @@ -153,6 +156,8 @@ struct uhci_qh { unsigned int needs_fixup:1; /* Must fix the TD toggle values */ unsigned int is_stopped:1; /* Queue was stopped by error/unlink */ unsigned int wait_expired:1; /* QH_WAIT_TIMEOUT has expired */ + unsigned int bandwidth_reserved:1; /* Periodic bandwidth has + * been allocated */ } __attribute__((aligned(16))); /* @@ -414,6 +419,9 @@ struct uhci_hcd { wait_queue_head_t waitqh; /* endpoint_disable waiters */ int num_waiting; /* Number of waiters */ + + int total_load; /* Sum of array values */ + short load[MAX_PHASE]; /* Periodic allocations */ }; /* Convert between a usb_hcd pointer and the corresponding uhci_hcd */ diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c index f8347f1a10b6..bacc25c53ba3 100644 --- a/drivers/usb/host/uhci-hub.c +++ b/drivers/usb/host/uhci-hub.c @@ -52,10 +52,20 @@ static int any_ports_active(struct uhci_hcd *uhci) static inline int get_hub_status_data(struct uhci_hcd *uhci, char *buf) { int port; + int mask = RWC_BITS; + + /* Some boards (both VIA and Intel apparently) report bogus + * overcurrent indications, causing massive log spam unless + * we completely ignore them. This doesn't seem to be a problem + * with the chipset so much as with the way it is connected on + * the motherboard; if the overcurrent input is left to float + * then it may constantly register false positives. */ + if (ignore_oc) + mask &= ~USBPORTSC_OCC; *buf = 0; for (port = 0; port < uhci->rh_numports; ++port) { - if ((inw(uhci->io_addr + USBPORTSC1 + port * 2) & RWC_BITS) || + if ((inw(uhci->io_addr + USBPORTSC1 + port * 2) & mask) || test_bit(port, &uhci->port_c_suspend)) *buf |= (1 << (port + 1)); } @@ -263,7 +273,7 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, wPortChange |= USB_PORT_STAT_C_CONNECTION; if (status & USBPORTSC_PEC) wPortChange |= USB_PORT_STAT_C_ENABLE; - if (status & USBPORTSC_OCC) + if ((status & USBPORTSC_OCC) && !ignore_oc) wPortChange |= USB_PORT_STAT_C_OVERCURRENT; if (test_bit(port, &uhci->port_c_suspend)) { diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c index 30b88459ac7d..2cbb239e63f8 100644 --- a/drivers/usb/host/uhci-q.c +++ b/drivers/usb/host/uhci-q.c @@ -248,16 +248,26 @@ static struct uhci_qh *uhci_alloc_qh(struct uhci_hcd *uhci, INIT_LIST_HEAD(&qh->node); if (udev) { /* Normal QH */ - qh->dummy_td = uhci_alloc_td(uhci); - if (!qh->dummy_td) { - dma_pool_free(uhci->qh_pool, qh, dma_handle); - return NULL; + qh->type = hep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK; + if (qh->type != USB_ENDPOINT_XFER_ISOC) { + qh->dummy_td = uhci_alloc_td(uhci); + if (!qh->dummy_td) { + dma_pool_free(uhci->qh_pool, qh, dma_handle); + return NULL; + } } qh->state = QH_STATE_IDLE; qh->hep = hep; qh->udev = udev; hep->hcpriv = qh; - qh->type = hep->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK; + + if (qh->type == USB_ENDPOINT_XFER_INT || + qh->type == USB_ENDPOINT_XFER_ISOC) + qh->load = usb_calc_bus_time(udev->speed, + usb_endpoint_dir_in(&hep->desc), + qh->type == USB_ENDPOINT_XFER_ISOC, + le16_to_cpu(hep->desc.wMaxPacketSize)) + / 1000 + 1; } else { /* Skeleton QH */ qh->state = QH_STATE_ACTIVE; @@ -275,7 +285,8 @@ static void uhci_free_qh(struct uhci_hcd *uhci, struct uhci_qh *qh) list_del(&qh->node); if (qh->udev) { qh->hep->hcpriv = NULL; - uhci_free_td(uhci, qh->dummy_td); + if (qh->dummy_td) + uhci_free_td(uhci, qh->dummy_td); } dma_pool_free(uhci->qh_pool, qh, qh->dma_handle); } @@ -327,7 +338,7 @@ static int uhci_cleanup_queue(struct uhci_hcd *uhci, struct uhci_qh *qh, goto done; qh->element = UHCI_PTR_TERM; - /* Control pipes have to worry about toggles */ + /* Control pipes don't have to worry about toggles */ if (qh->type == USB_ENDPOINT_XFER_CONTROL) goto done; @@ -493,6 +504,121 @@ static void uhci_make_qh_idle(struct uhci_hcd *uhci, struct uhci_qh *qh) wake_up_all(&uhci->waitqh); } +/* + * Find the highest existing bandwidth load for a given phase and period. + */ +static int uhci_highest_load(struct uhci_hcd *uhci, int phase, int period) +{ + int highest_load = uhci->load[phase]; + + for (phase += period; phase < MAX_PHASE; phase += period) + highest_load = max_t(int, highest_load, uhci->load[phase]); + return highest_load; +} + +/* + * Set qh->phase to the optimal phase for a periodic transfer and + * check whether the bandwidth requirement is acceptable. + */ +static int uhci_check_bandwidth(struct uhci_hcd *uhci, struct uhci_qh *qh) +{ + int minimax_load; + + /* Find the optimal phase (unless it is already set) and get + * its load value. */ + if (qh->phase >= 0) + minimax_load = uhci_highest_load(uhci, qh->phase, qh->period); + else { + int phase, load; + int max_phase = min_t(int, MAX_PHASE, qh->period); + + qh->phase = 0; + minimax_load = uhci_highest_load(uhci, qh->phase, qh->period); + for (phase = 1; phase < max_phase; ++phase) { + load = uhci_highest_load(uhci, phase, qh->period); + if (load < minimax_load) { + minimax_load = load; + qh->phase = phase; + } + } + } + + /* Maximum allowable periodic bandwidth is 90%, or 900 us per frame */ + if (minimax_load + qh->load > 900) { + dev_dbg(uhci_dev(uhci), "bandwidth allocation failed: " + "period %d, phase %d, %d + %d us\n", + qh->period, qh->phase, minimax_load, qh->load); + return -ENOSPC; + } + return 0; +} + +/* + * Reserve a periodic QH's bandwidth in the schedule + */ +static void uhci_reserve_bandwidth(struct uhci_hcd *uhci, struct uhci_qh *qh) +{ + int i; + int load = qh->load; + char *p = "??"; + + for (i = qh->phase; i < MAX_PHASE; i += qh->period) { + uhci->load[i] += load; + uhci->total_load += load; + } + uhci_to_hcd(uhci)->self.bandwidth_allocated = + uhci->total_load / MAX_PHASE; + switch (qh->type) { + case USB_ENDPOINT_XFER_INT: + ++uhci_to_hcd(uhci)->self.bandwidth_int_reqs; + p = "INT"; + break; + case USB_ENDPOINT_XFER_ISOC: + ++uhci_to_hcd(uhci)->self.bandwidth_isoc_reqs; + p = "ISO"; + break; + } + qh->bandwidth_reserved = 1; + dev_dbg(uhci_dev(uhci), + "%s dev %d ep%02x-%s, period %d, phase %d, %d us\n", + "reserve", qh->udev->devnum, + qh->hep->desc.bEndpointAddress, p, + qh->period, qh->phase, load); +} + +/* + * Release a periodic QH's bandwidth reservation + */ +static void uhci_release_bandwidth(struct uhci_hcd *uhci, struct uhci_qh *qh) +{ + int i; + int load = qh->load; + char *p = "??"; + + for (i = qh->phase; i < MAX_PHASE; i += qh->period) { + uhci->load[i] -= load; + uhci->total_load -= load; + } + uhci_to_hcd(uhci)->self.bandwidth_allocated = + uhci->total_load / MAX_PHASE; + switch (qh->type) { + case USB_ENDPOINT_XFER_INT: + --uhci_to_hcd(uhci)->self.bandwidth_int_reqs; + p = "INT"; + break; + case USB_ENDPOINT_XFER_ISOC: + --uhci_to_hcd(uhci)->self.bandwidth_isoc_reqs; + p = "ISO"; + break; + } + qh->bandwidth_reserved = 0; + dev_dbg(uhci_dev(uhci), + "%s dev %d ep%02x-%s, period %d, phase %d, %d us\n", + "release", qh->udev->devnum, + qh->hep->desc.bEndpointAddress, p, + qh->period, qh->phase, load); +} + static inline struct urb_priv *uhci_alloc_urb_priv(struct uhci_hcd *uhci, struct urb *urb) { @@ -796,7 +922,6 @@ static int uhci_submit_common(struct uhci_hcd *uhci, struct urb *urb, wmb(); qh->dummy_td->status |= __constant_cpu_to_le32(TD_CTRL_ACTIVE); qh->dummy_td = td; - qh->period = urb->interval; usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), usb_pipeout(urb->pipe), toggle); @@ -827,28 +952,42 @@ static inline int uhci_submit_bulk(struct uhci_hcd *uhci, struct urb *urb, static int uhci_submit_interrupt(struct uhci_hcd *uhci, struct urb *urb, struct uhci_qh *qh) { - int exponent; + int ret; /* USB 1.1 interrupt transfers only involve one packet per interval. * Drivers can submit URBs of any length, but longer ones will need * multiple intervals to complete. */ - /* Figure out which power-of-two queue to use */ - for (exponent = 7; exponent >= 0; --exponent) { - if ((1 << exponent) <= urb->interval) - break; - } - if (exponent < 0) - return -EINVAL; - urb->interval = 1 << exponent; + if (!qh->bandwidth_reserved) { + int exponent; - if (qh->period == 0) + /* Figure out which power-of-two queue to use */ + for (exponent = 7; exponent >= 0; --exponent) { + if ((1 << exponent) <= urb->interval) + break; + } + if (exponent < 0) + return -EINVAL; + qh->period = 1 << exponent; qh->skel = uhci->skelqh[UHCI_SKEL_INDEX(exponent)]; - else if (qh->period != urb->interval) - return -EINVAL; /* Can't change the period */ - return uhci_submit_common(uhci, urb, qh); + /* For now, interrupt phase is fixed by the layout + * of the QH lists. */ + qh->phase = (qh->period / 2) & (MAX_PHASE - 1); + ret = uhci_check_bandwidth(uhci, qh); + if (ret) + return ret; + } else if (qh->period > urb->interval) + return -EINVAL; /* Can't decrease the period */ + + ret = uhci_submit_common(uhci, urb, qh); + if (ret == 0) { + urb->interval = qh->period; + if (!qh->bandwidth_reserved) + uhci_reserve_bandwidth(uhci, qh); + } + return ret; } /* @@ -995,15 +1134,32 @@ static int uhci_submit_isochronous(struct uhci_hcd *uhci, struct urb *urb, return -EFBIG; /* Check the period and figure out the starting frame number */ - if (qh->period == 0) { + if (!qh->bandwidth_reserved) { + qh->period = urb->interval; if (urb->transfer_flags & URB_ISO_ASAP) { + qh->phase = -1; /* Find the best phase */ + i = uhci_check_bandwidth(uhci, qh); + if (i) + return i; + + /* Allow a little time to allocate the TDs */ uhci_get_current_frame_number(uhci); - urb->start_frame = uhci->frame_number + 10; + frame = uhci->frame_number + 10; + + /* Move forward to the first frame having the + * correct phase */ + urb->start_frame = frame + ((qh->phase - frame) & + (qh->period - 1)); } else { i = urb->start_frame - uhci->last_iso_frame; if (i <= 0 || i >= UHCI_NUMFRAMES) return -EINVAL; + qh->phase = urb->start_frame & (qh->period - 1); + i = uhci_check_bandwidth(uhci, qh); + if (i) + return i; } + } else if (qh->period != urb->interval) { return -EINVAL; /* Can't change the period */ @@ -1049,9 +1205,6 @@ static int uhci_submit_isochronous(struct uhci_hcd *uhci, struct urb *urb, /* Set the interrupt-on-completion flag on the last packet. */ td->status |= __constant_cpu_to_le32(TD_CTRL_IOC); - qh->skel = uhci->skel_iso_qh; - qh->period = urb->interval; - /* Add the TDs to the frame list */ frame = urb->start_frame; list_for_each_entry(td, &urbp->td_list, list) { @@ -1065,6 +1218,9 @@ static int uhci_submit_isochronous(struct uhci_hcd *uhci, struct urb *urb, qh->iso_status = 0; } + qh->skel = uhci->skel_iso_qh; + if (!qh->bandwidth_reserved) + uhci_reserve_bandwidth(uhci, qh); return 0; } @@ -1119,7 +1275,6 @@ static int uhci_urb_enqueue(struct usb_hcd *hcd, unsigned long flags; struct urb_priv *urbp; struct uhci_qh *qh; - int bustime; spin_lock_irqsave(&uhci->lock, flags); @@ -1149,35 +1304,11 @@ static int uhci_urb_enqueue(struct usb_hcd *hcd, ret = uhci_submit_bulk(uhci, urb, qh); break; case USB_ENDPOINT_XFER_INT: - if (list_empty(&qh->queue)) { - bustime = usb_check_bandwidth(urb->dev, urb); - if (bustime < 0) - ret = bustime; - else { - ret = uhci_submit_interrupt(uhci, urb, qh); - if (ret == 0) - usb_claim_bandwidth(urb->dev, urb, bustime, 0); - } - } else { /* inherit from parent */ - struct urb_priv *eurbp; - - eurbp = list_entry(qh->queue.prev, struct urb_priv, - node); - urb->bandwidth = eurbp->urb->bandwidth; - ret = uhci_submit_interrupt(uhci, urb, qh); - } + ret = uhci_submit_interrupt(uhci, urb, qh); break; case USB_ENDPOINT_XFER_ISOC: urb->error_count = 0; - bustime = usb_check_bandwidth(urb->dev, urb); - if (bustime < 0) { - ret = bustime; - break; - } - ret = uhci_submit_isochronous(uhci, urb, qh); - if (ret == 0) - usb_claim_bandwidth(urb->dev, urb, bustime, 1); break; } if (ret != 0) @@ -1274,24 +1405,6 @@ __acquires(uhci->lock) uhci_free_urb_priv(uhci, urbp); - switch (qh->type) { - case USB_ENDPOINT_XFER_ISOC: - /* Release bandwidth for Interrupt or Isoc. transfers */ - if (urb->bandwidth) - usb_release_bandwidth(urb->dev, urb, 1); - break; - case USB_ENDPOINT_XFER_INT: - /* Release bandwidth for Interrupt or Isoc. transfers */ - /* Make sure we don't release if we have a queued URB */ - if (list_empty(&qh->queue) && urb->bandwidth) - usb_release_bandwidth(urb->dev, urb, 0); - else - /* bandwidth was passed on to queued URB, */ - /* so don't let usb_unlink_urb() release it */ - urb->bandwidth = 0; - break; - } - spin_unlock(&uhci->lock); usb_hcd_giveback_urb(uhci_to_hcd(uhci), urb); spin_lock(&uhci->lock); @@ -1300,9 +1413,8 @@ __acquires(uhci->lock) * reserved bandwidth. */ if (list_empty(&qh->queue)) { uhci_unlink_qh(uhci, qh); - - /* Bandwidth stuff not yet implemented */ - qh->period = 0; + if (qh->bandwidth_reserved) + uhci_release_bandwidth(uhci, qh); } } |
