diff options
Diffstat (limited to 'recipes/obsolete/linux/linux-mtx-2-2.4.27/08-usb-nonpci-2.4.24.patch')
| -rw-r--r-- | recipes/obsolete/linux/linux-mtx-2-2.4.27/08-usb-nonpci-2.4.24.patch | 3185 |
1 files changed, 3185 insertions, 0 deletions
diff --git a/recipes/obsolete/linux/linux-mtx-2-2.4.27/08-usb-nonpci-2.4.24.patch b/recipes/obsolete/linux/linux-mtx-2-2.4.27/08-usb-nonpci-2.4.24.patch new file mode 100644 index 0000000000..ca093e1a67 --- /dev/null +++ b/recipes/obsolete/linux/linux-mtx-2-2.4.27/08-usb-nonpci-2.4.24.patch @@ -0,0 +1,3185 @@ +diff -Nurb linux-mips-2.4.27/drivers/usb/host/Config.in linux/drivers/usb/host/Config.in +--- linux-mips-2.4.27/drivers/usb/host/Config.in 2003-11-17 02:07:42.000000000 +0100 ++++ linux/drivers/usb/host/Config.in 2004-11-23 11:24:10.599627448 +0100 +@@ -17,3 +17,4 @@ + dep_tristate ' SL811HS Alternate (x86, StrongARM, isosynchronous mode)' CONFIG_USB_SL811HS_ALT $CONFIG_USB $CONFIG_EXPERIMENTAL + dep_tristate ' SL811HS (x86, StrongARM) support, old driver' CONFIG_USB_SL811HS $CONFIG_USB $CONFIG_EXPERIMENTAL + fi ++dep_tristate ' Non-PCI OHCI support' CONFIG_USB_NON_PCI_OHCI $CONFIG_USB_OHCI +diff -Nurb linux-mips-2.4.27/drivers/usb/host/usb-ohci.c linux/drivers/usb/host/usb-ohci.c +--- linux-mips-2.4.27/drivers/usb/host/usb-ohci.c 2004-04-16 05:14:18.000000000 +0200 ++++ linux/drivers/usb/host/usb-ohci.c 2004-11-23 11:24:10.602626992 +0100 +@@ -2564,6 +2564,7 @@ + hc_release_ohci (ohci); + return ret; + } ++#ifndef CONFIG_USB_NON_PCI_OHCI + ohci->flags = id->driver_data; + + /* Check for NSC87560. We have to look at the bridge (fn1) to identify +@@ -2582,6 +2583,7 @@ + printk (KERN_INFO __FILE__ ": Using NSC SuperIO setup\n"); + if (ohci->flags & OHCI_QUIRK_AMD756) + printk (KERN_INFO __FILE__ ": AMD756 erratum 4 workaround\n"); ++#endif + + if (hc_reset (ohci) < 0) { + hc_release_ohci (ohci); +@@ -2627,8 +2629,10 @@ + int temp; + int i; + ++#ifndef CONFIG_USB_NON_PCI_OHCI + if (ohci->pci_latency) + pci_write_config_byte (ohci->ohci_dev, PCI_LATENCY_TIMER, ohci->pci_latency); ++#endif + + ohci->disabled = 1; + ohci->sleeping = 0; +@@ -2658,6 +2662,7 @@ + + /*-------------------------------------------------------------------------*/ + ++#ifndef CONFIG_USB_NON_PCI_OHCI + /* configured so that an OHCI device is always provided */ + /* always called with process context; sleeping is OK */ + +@@ -2705,6 +2710,88 @@ + } + return status; + } ++#else /* CONFIG_USB_NON_PCI_OHCI */ ++ ++// Boot options ++static int ohci_base=0, ohci_len=0; ++static int ohci_irq=-1; ++ ++MODULE_PARM(ohci_base, "i"); ++MODULE_PARM(ohci_len, "i"); ++MODULE_PARM(ohci_irq, "i"); ++MODULE_PARM_DESC(ohci_base, "IO Base address of OHCI Oper. registers"); ++MODULE_PARM_DESC(ohci_len, "IO length of OHCI Oper. registers"); ++MODULE_PARM_DESC(ohci_irq, "IRQ for OHCI interrupts"); ++ ++// bogus pci_dev ++static struct pci_dev bogus_pcidev; ++ ++static struct pci_driver ohci_pci_driver = { ++ name: "usb-ohci", ++}; ++ ++static int __devinit ++ohci_non_pci_init (void) ++{ ++ void *mem_base; ++ ++ if (!ohci_base || !ohci_len || (ohci_irq < 0)) ++ return -ENODEV; ++ ++ if (!request_mem_region (ohci_base, ohci_len, ohci_pci_driver.name)) { ++ dbg ("controller already in use"); ++ return -EBUSY; ++ } ++ ++ mem_base = ioremap_nocache (ohci_base, ohci_len); ++ if (!mem_base) { ++ err("Error mapping OHCI memory"); ++ return -EFAULT; ++ } ++ ++ /* ++ * Fill in the bogus pci_dev. Only those members actually ++ * dereferenced in this driver are initialized. ++ */ ++ memset(&bogus_pcidev, 0, sizeof(struct pci_dev)); ++ strcpy(bogus_pcidev.name, "non-PCI OHCI"); ++ strcpy(bogus_pcidev.slot_name, "builtin"); ++ bogus_pcidev.resource[0].name = "OHCI Operational Registers"; ++ bogus_pcidev.resource[0].start = ohci_base; ++ bogus_pcidev.resource[0].end = ohci_base + ohci_len; ++ bogus_pcidev.resource[0].flags = 0; ++ bogus_pcidev.irq = ohci_irq; ++ ++ return hc_found_ohci (&bogus_pcidev, bogus_pcidev.irq, mem_base, NULL); ++} ++ ++#ifndef MODULE ++ ++static int __init ++ohci_setup (char* options) ++{ ++ char* this_opt; ++ ++ if (!options || !*options) ++ return 0; ++ ++ for(this_opt=strtok(options,",");this_opt;this_opt=strtok(NULL,",")) { ++ if (!strncmp(this_opt, "base:", 5)) { ++ ohci_base = simple_strtoul(this_opt+5, NULL, 0); ++ } else if (!strncmp(this_opt, "len:", 4)) { ++ ohci_len = simple_strtoul(this_opt+4, NULL, 0); ++ } else if (!strncmp(this_opt, "irq:", 4)) { ++ ohci_irq = simple_strtoul(this_opt+4, NULL, 0); ++ } ++ } ++ return 0; ++} ++ ++__setup("usb_ohci=", ohci_setup); ++ ++#endif /* !MODULE */ ++ ++#endif /* CONFIG_USB_NON_PCI_OHCI */ + + /*-------------------------------------------------------------------------*/ + +@@ -2745,6 +2832,7 @@ + } + + ++#ifndef CONFIG_USB_NON_PCI_OHCI + #ifdef CONFIG_PM + + /*-------------------------------------------------------------------------*/ +@@ -2983,20 +3071,29 @@ + resume: ohci_pci_resume, + #endif /* PM */ + }; ++#endif /* CONFIG_USB_NON_PCI_OHCI */ + + + /*-------------------------------------------------------------------------*/ + + static int __init ohci_hcd_init (void) + { ++#ifndef CONFIG_USB_NON_PCI_OHCI + return pci_module_init (&ohci_pci_driver); ++#else ++ return ohci_non_pci_init(); ++#endif + } + + /*-------------------------------------------------------------------------*/ + + static void __exit ohci_hcd_cleanup (void) + { ++#ifndef CONFIG_USB_NON_PCI_OHCI + pci_unregister_driver (&ohci_pci_driver); ++#else ++ ohci_pci_remove(&bogus_pcidev); ++#endif + } + + module_init (ohci_hcd_init); +diff -Nurb linux-mips-2.4.27/drivers/usb/host/usb-ohci.c.orig linux/drivers/usb/host/usb-ohci.c.orig +--- linux-mips-2.4.27/drivers/usb/host/usb-ohci.c.orig 1970-01-01 01:00:00.000000000 +0100 ++++ linux/drivers/usb/host/usb-ohci.c.orig 2004-11-23 11:21:54.984244120 +0100 +@@ -0,0 +1,3008 @@ ++/* ++ * URB OHCI HCD (Host Controller Driver) for USB. ++ * ++ * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at> ++ * (C) Copyright 2000-2001 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] ++ * ++ * ++ * History: ++ * ++ * 2002/10/22 OHCI_USB_OPER for ALi lockup in IBM i1200 (ALEX <thchou@ali>) ++ * 2002/03/08 interrupt unlink fix (Matt Hughes), better cleanup on ++ * load failure (Matthew Frederickson) ++ * 2002/01/20 async unlink fixes: return -EINPROGRESS (per spec) and ++ * make interrupt unlink-in-completion work (db) ++ * 2001/09/19 USB_ZERO_PACKET support (Jean Tourrilhes) ++ * 2001/07/17 power management and pmac cleanup (Benjamin Herrenschmidt) ++ * 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 ++ */ ++ ++#include <linux/config.h> ++#include <linux/module.h> ++#include <linux/pci.h> ++#include <linux/kernel.h> ++#include <linux/delay.h> ++#include <linux/ioport.h> ++#include <linux/sched.h> ++#include <linux/slab.h> ++#include <linux/smp_lock.h> ++#include <linux/errno.h> ++#include <linux/init.h> ++#include <linux/timer.h> ++#include <linux/list.h> ++#include <linux/interrupt.h> /* for in_interrupt() */ ++#undef DEBUG ++#include <linux/usb.h> ++ ++#include <asm/io.h> ++#include <asm/irq.h> ++#include <asm/system.h> ++#include <asm/unaligned.h> ++ ++#define OHCI_USE_NPS // force NoPowerSwitching mode ++// #define OHCI_VERBOSE_DEBUG /* not always helpful */ ++ ++#include "usb-ohci.h" ++ ++#include "../hcd.h" ++ ++#ifdef CONFIG_PMAC_PBOOK ++#include <asm/machdep.h> ++#include <asm/pmac_feature.h> ++#include <asm/pci-bridge.h> ++#ifndef CONFIG_PM ++#define CONFIG_PM ++#endif ++#endif ++ ++ ++/* ++ * Version Information ++ */ ++#define DRIVER_VERSION "v5.3" ++#define DRIVER_AUTHOR "Roman Weissgaerber <weissg@vienna.at>, David Brownell" ++#define DRIVER_DESC "USB OHCI Host Controller Driver" ++ ++/* For initializing controller (mask in an HCFS mode too) */ ++#define OHCI_CONTROL_INIT \ ++ (OHCI_CTRL_CBSR & 0x3) | OHCI_CTRL_IE | OHCI_CTRL_PLE ++ ++#define OHCI_UNLINK_TIMEOUT (HZ / 10) ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* AMD-756 (D2 rev) reports corrupt register contents in some cases. ++ * The erratum (#4) description is incorrect. AMD's workaround waits ++ * till some bits (mostly reserved) are clear; ok for all revs. ++ */ ++#define read_roothub(hc, register, mask) ({ \ ++ u32 temp = readl (&hc->regs->roothub.register); \ ++ if (hc->flags & OHCI_QUIRK_AMD756) \ ++ while (temp & mask) \ ++ temp = readl (&hc->regs->roothub.register); \ ++ temp; }) ++ ++static u32 roothub_a (struct ohci *hc) ++ { return read_roothub (hc, a, 0xfc0fe000); } ++static inline u32 roothub_b (struct ohci *hc) ++ { return readl (&hc->regs->roothub.b); } ++static inline u32 roothub_status (struct ohci *hc) ++ { return readl (&hc->regs->roothub.status); } ++static u32 roothub_portstatus (struct ohci *hc, int i) ++ { return read_roothub (hc, portstatus [i], 0xffe0fce0); } ++ ++ ++/*-------------------------------------------------------------------------* ++ * URB support functions ++ *-------------------------------------------------------------------------*/ ++ ++static void ohci_complete_add(struct ohci *ohci, struct urb *urb) ++{ ++ ++ if (urb->hcpriv != NULL) { ++ printk("completing with non-null priv!\n"); ++ return; ++ } ++ ++ if (ohci->complete_tail == NULL) { ++ ohci->complete_head = urb; ++ ohci->complete_tail = urb; ++ } else { ++ ohci->complete_head->hcpriv = urb; ++ ohci->complete_tail = urb; ++ } ++} ++ ++static inline struct urb *ohci_complete_get(struct ohci *ohci) ++{ ++ struct urb *urb; ++ ++ if ((urb = ohci->complete_head) == NULL) ++ return NULL; ++ if (urb == ohci->complete_tail) { ++ ohci->complete_tail = NULL; ++ ohci->complete_head = NULL; ++ } else { ++ ohci->complete_head = urb->hcpriv; ++ } ++ urb->hcpriv = NULL; ++ return urb; ++} ++ ++static inline void ohci_complete(struct ohci *ohci) ++{ ++ struct urb *urb; ++ ++ spin_lock(&ohci->ohci_lock); ++ while ((urb = ohci_complete_get(ohci)) != NULL) { ++ spin_unlock(&ohci->ohci_lock); ++ if (urb->dev) { ++ usb_dec_dev_use (urb->dev); ++ urb->dev = NULL; ++ } ++ if (urb->complete) ++ (*urb->complete)(urb); ++ spin_lock(&ohci->ohci_lock); ++ } ++ spin_unlock(&ohci->ohci_lock); ++} ++ ++/* free HCD-private data associated with this URB */ ++ ++static void urb_free_priv (struct ohci *hc, urb_priv_t * urb_priv) ++{ ++ int i; ++ int last = urb_priv->length - 1; ++ int len; ++ int dir; ++ struct td *td; ++ ++ if (last >= 0) { ++ ++ /* ISOC, BULK, INTR data buffer starts at td 0 ++ * CTRL setup starts at td 0 */ ++ td = urb_priv->td [0]; ++ ++ len = td->urb->transfer_buffer_length, ++ dir = usb_pipeout (td->urb->pipe) ++ ? PCI_DMA_TODEVICE ++ : PCI_DMA_FROMDEVICE; ++ ++ /* unmap CTRL URB setup */ ++ if (usb_pipecontrol (td->urb->pipe)) { ++ pci_unmap_single (hc->ohci_dev, ++ td->data_dma, 8, PCI_DMA_TODEVICE); ++ ++ /* CTRL data buffer starts at td 1 if len > 0 */ ++ if (len && last > 0) ++ td = urb_priv->td [1]; ++ } ++ ++ /* unmap data buffer */ ++ if (len && td->data_dma) ++ pci_unmap_single (hc->ohci_dev, td->data_dma, len, dir); ++ ++ for (i = 0; i <= last; i++) { ++ td = urb_priv->td [i]; ++ if (td) ++ td_free (hc, td); ++ } ++ } ++ ++ kfree (urb_priv); ++} ++ ++static void urb_rm_priv_locked (struct urb * urb) ++{ ++ urb_priv_t * urb_priv = urb->hcpriv; ++ ++ if (urb_priv) { ++ urb->hcpriv = NULL; ++ ++#ifdef DO_TIMEOUTS ++ if (urb->timeout) { ++ list_del (&urb->urb_list); ++ urb->timeout -= jiffies; ++ } ++#endif ++ ++ /* Release int/iso bandwidth */ ++ if (urb->bandwidth) { ++ switch (usb_pipetype(urb->pipe)) { ++ case PIPE_INTERRUPT: ++ usb_release_bandwidth (urb->dev, urb, 0); ++ break; ++ case PIPE_ISOCHRONOUS: ++ usb_release_bandwidth (urb->dev, urb, 1); ++ break; ++ default: ++ break; ++ } ++ } ++ ++ urb_free_priv ((struct ohci *)urb->dev->bus->hcpriv, urb_priv); ++ } else { ++ if (urb->dev != NULL) { ++ err ("Non-null dev at rm_priv time"); ++ // urb->dev = NULL; ++ } ++ } ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++#ifdef DEBUG ++static int sohci_get_current_frame_number (struct usb_device * dev); ++ ++/* debug| print the main components of an URB ++ * small: 0) header + data packets 1) just header */ ++ ++static void urb_print (struct urb * urb, char * str, int small) ++{ ++ unsigned int pipe= urb->pipe; ++ ++ if (!urb->dev || !urb->dev->bus) { ++ dbg("%s URB: no dev", str); ++ return; ++ } ++ ++#ifndef OHCI_VERBOSE_DEBUG ++ if (urb->status != 0) ++#endif ++ dbg("%s URB:[%4x] dev:%2d,ep:%2d-%c,type:%s,flags:%4x,len:%d/%d,stat:%d(%x)", ++ str, ++ sohci_get_current_frame_number (urb->dev), ++ usb_pipedevice (pipe), ++ usb_pipeendpoint (pipe), ++ usb_pipeout (pipe)? 'O': 'I', ++ usb_pipetype (pipe) < 2? (usb_pipeint (pipe)? "INTR": "ISOC"): ++ (usb_pipecontrol (pipe)? "CTRL": "BULK"), ++ urb->transfer_flags, ++ urb->actual_length, ++ urb->transfer_buffer_length, ++ urb->status, urb->status); ++#ifdef OHCI_VERBOSE_DEBUG ++ if (!small) { ++ int i, len; ++ ++ if (usb_pipecontrol (pipe)) { ++ printk (KERN_DEBUG __FILE__ ": cmd(8):"); ++ for (i = 0; i < 8 ; i++) ++ printk (" %02x", ((__u8 *) urb->setup_packet) [i]); ++ printk ("\n"); ++ } ++ if (urb->transfer_buffer_length > 0 && urb->transfer_buffer) { ++ printk (KERN_DEBUG __FILE__ ": data(%d/%d):", ++ urb->actual_length, ++ urb->transfer_buffer_length); ++ len = usb_pipeout (pipe)? ++ urb->transfer_buffer_length: urb->actual_length; ++ for (i = 0; i < 16 && i < len; i++) ++ printk (" %02x", ((__u8 *) urb->transfer_buffer) [i]); ++ printk ("%s stat:%d\n", i < len? "...": "", urb->status); ++ } ++ } ++#endif ++} ++ ++/* just for debugging; prints non-empty branches of the int ed tree inclusive iso eds*/ ++void ep_print_int_eds (ohci_t * ohci, char * str) { ++ int i, j; ++ __u32 * ed_p; ++ for (i= 0; i < 32; i++) { ++ j = 5; ++ ed_p = &(ohci->hcca->int_table [i]); ++ if (*ed_p == 0) ++ continue; ++ printk (KERN_DEBUG __FILE__ ": %s branch int %2d(%2x):", str, i, i); ++ while (*ed_p != 0 && j--) { ++ ed_t *ed = dma_to_ed (ohci, le32_to_cpup(ed_p)); ++ printk (" ed: %4x;", ed->hwINFO); ++ ed_p = &ed->hwNextED; ++ } ++ printk ("\n"); ++ } ++} ++ ++ ++static void ohci_dump_intr_mask (char *label, __u32 mask) ++{ ++ dbg ("%s: 0x%08x%s%s%s%s%s%s%s%s%s", ++ label, ++ mask, ++ (mask & OHCI_INTR_MIE) ? " MIE" : "", ++ (mask & OHCI_INTR_OC) ? " OC" : "", ++ (mask & OHCI_INTR_RHSC) ? " RHSC" : "", ++ (mask & OHCI_INTR_FNO) ? " FNO" : "", ++ (mask & OHCI_INTR_UE) ? " UE" : "", ++ (mask & OHCI_INTR_RD) ? " RD" : "", ++ (mask & OHCI_INTR_SF) ? " SF" : "", ++ (mask & OHCI_INTR_WDH) ? " WDH" : "", ++ (mask & OHCI_INTR_SO) ? " SO" : "" ++ ); ++} ++ ++static void maybe_print_eds (char *label, __u32 value) ++{ ++ if (value) ++ dbg ("%s %08x", label, value); ++} ++ ++static char *hcfs2string (int state) ++{ ++ switch (state) { ++ case OHCI_USB_RESET: return "reset"; ++ case OHCI_USB_RESUME: return "resume"; ++ case OHCI_USB_OPER: return "operational"; ++ case OHCI_USB_SUSPEND: return "suspend"; ++ } ++ return "?"; ++} ++ ++// dump control and status registers ++static void ohci_dump_status (ohci_t *controller) ++{ ++ struct ohci_regs *regs = controller->regs; ++ __u32 temp; ++ ++ temp = readl (®s->revision) & 0xff; ++ if (temp != 0x10) ++ dbg ("spec %d.%d", (temp >> 4), (temp & 0x0f)); ++ ++ temp = readl (®s->control); ++ dbg ("control: 0x%08x%s%s%s HCFS=%s%s%s%s%s CBSR=%d", temp, ++ (temp & OHCI_CTRL_RWE) ? " RWE" : "", ++ (temp & OHCI_CTRL_RWC) ? " RWC" : "", ++ (temp & OHCI_CTRL_IR) ? " IR" : "", ++ hcfs2string (temp & OHCI_CTRL_HCFS), ++ (temp & OHCI_CTRL_BLE) ? " BLE" : "", ++ (temp & OHCI_CTRL_CLE) ? " CLE" : "", ++ (temp & OHCI_CTRL_IE) ? " IE" : "", ++ (temp & OHCI_CTRL_PLE) ? " PLE" : "", ++ temp & OHCI_CTRL_CBSR ++ ); ++ ++ temp = readl (®s->cmdstatus); ++ dbg ("cmdstatus: 0x%08x SOC=%d%s%s%s%s", temp, ++ (temp & OHCI_SOC) >> 16, ++ (temp & OHCI_OCR) ? " OCR" : "", ++ (temp & OHCI_BLF) ? " BLF" : "", ++ (temp & OHCI_CLF) ? " CLF" : "", ++ (temp & OHCI_HCR) ? " HCR" : "" ++ ); ++ ++ ohci_dump_intr_mask ("intrstatus", readl (®s->intrstatus)); ++ ohci_dump_intr_mask ("intrenable", readl (®s->intrenable)); ++ // intrdisable always same as intrenable ++ // ohci_dump_intr_mask ("intrdisable", readl (®s->intrdisable)); ++ ++ maybe_print_eds ("ed_periodcurrent", readl (®s->ed_periodcurrent)); ++ ++ maybe_print_eds ("ed_controlhead", readl (®s->ed_controlhead)); ++ maybe_print_eds ("ed_controlcurrent", readl (®s->ed_controlcurrent)); ++ ++ maybe_print_eds ("ed_bulkhead", readl (®s->ed_bulkhead)); ++ maybe_print_eds ("ed_bulkcurrent", readl (®s->ed_bulkcurrent)); ++ ++ maybe_print_eds ("donehead", readl (®s->donehead)); ++} ++ ++static void ohci_dump_roothub (ohci_t *controller, int verbose) ++{ ++ __u32 temp, ndp, i; ++ ++ temp = roothub_a (controller); ++ if (temp == ~(u32)0) ++ return; ++ ndp = (temp & RH_A_NDP); ++ ++ if (verbose) { ++ dbg ("roothub.a: %08x POTPGT=%d%s%s%s%s%s NDP=%d", temp, ++ ((temp & RH_A_POTPGT) >> 24) & 0xff, ++ (temp & RH_A_NOCP) ? " NOCP" : "", ++ (temp & RH_A_OCPM) ? " OCPM" : "", ++ (temp & RH_A_DT) ? " DT" : "", ++ (temp & RH_A_NPS) ? " NPS" : "", ++ (temp & RH_A_PSM) ? " PSM" : "", ++ ndp ++ ); ++ temp = roothub_b (controller); ++ dbg ("roothub.b: %08x PPCM=%04x DR=%04x", ++ temp, ++ (temp & RH_B_PPCM) >> 16, ++ (temp & RH_B_DR) ++ ); ++ temp = roothub_status (controller); ++ dbg ("roothub.status: %08x%s%s%s%s%s%s", ++ temp, ++ (temp & RH_HS_CRWE) ? " CRWE" : "", ++ (temp & RH_HS_OCIC) ? " OCIC" : "", ++ (temp & RH_HS_LPSC) ? " LPSC" : "", ++ (temp & RH_HS_DRWE) ? " DRWE" : "", ++ (temp & RH_HS_OCI) ? " OCI" : "", ++ (temp & RH_HS_LPS) ? " LPS" : "" ++ ); ++ } ++ ++ for (i = 0; i < ndp; i++) { ++ temp = roothub_portstatus (controller, i); ++ dbg ("roothub.portstatus [%d] = 0x%08x%s%s%s%s%s%s%s%s%s%s%s%s", ++ i, ++ temp, ++ (temp & RH_PS_PRSC) ? " PRSC" : "", ++ (temp & RH_PS_OCIC) ? " OCIC" : "", ++ (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" : "" ++ ); ++ } ++} ++ ++static void ohci_dump (ohci_t *controller, int verbose) ++{ ++ dbg ("OHCI controller usb-%s state", controller->ohci_dev->slot_name); ++ ++ // dumps some of the state we know about ++ ohci_dump_status (controller); ++ if (verbose) ++ ep_print_int_eds (controller, "hcca"); ++ dbg ("hcca frame #%04x", controller->hcca->frame_no); ++ ohci_dump_roothub (controller, 1); ++} ++ ++ ++#endif ++ ++/*-------------------------------------------------------------------------* ++ * Interface functions (URB) ++ *-------------------------------------------------------------------------*/ ++ ++/* return a request to the completion handler */ ++ ++static int sohci_return_urb (struct ohci *hc, struct urb * urb) ++{ ++ urb_priv_t * urb_priv = urb->hcpriv; ++ struct urb * urbt; ++ int i; ++ ++ if (!urb_priv) ++ return -1; /* urb already unlinked */ ++ ++ /* just to be sure */ ++ if (!urb->complete) { ++ urb_rm_priv_locked (urb); ++ ohci_complete_add(hc, urb); /* Just usb_dec_dev_use */ ++ return -1; ++ } ++ ++#ifdef DEBUG ++ urb_print (urb, "RET", usb_pipeout (urb->pipe)); ++#endif ++ ++ switch (usb_pipetype (urb->pipe)) { ++ case PIPE_INTERRUPT: ++ pci_unmap_single (hc->ohci_dev, ++ urb_priv->td [0]->data_dma, ++ urb->transfer_buffer_length, ++ usb_pipeout (urb->pipe) ++ ? PCI_DMA_TODEVICE ++ : PCI_DMA_FROMDEVICE); ++ if (urb->interval) { ++ urb->complete (urb); ++ ++ /* implicitly requeued */ ++ urb->actual_length = 0; ++ urb->status = -EINPROGRESS; ++ td_submit_urb (urb); ++ } else { ++ urb_rm_priv_locked (urb); ++ ohci_complete_add(hc, urb); ++ } ++ break; ++ ++ case PIPE_ISOCHRONOUS: ++ for (urbt = urb->next; urbt && (urbt != urb); urbt = urbt->next); ++ if (urbt) { /* send the reply and requeue URB */ ++ pci_unmap_single (hc->ohci_dev, ++ urb_priv->td [0]->data_dma, ++ urb->transfer_buffer_length, ++ usb_pipeout (urb->pipe) ++ ? PCI_DMA_TODEVICE ++ : PCI_DMA_FROMDEVICE); ++ urb->complete (urb); ++ urb->actual_length = 0; ++ urb->status = USB_ST_URB_PENDING; ++ urb->start_frame = urb_priv->ed->last_iso + 1; ++ if (urb_priv->state != URB_DEL) { ++ for (i = 0; i < urb->number_of_packets; i++) { ++ urb->iso_frame_desc[i].actual_length = 0; ++ urb->iso_frame_desc[i].status = -EXDEV; ++ } ++ td_submit_urb (urb); ++ } ++ ++ } else { /* unlink URB, call complete */ ++ urb_rm_priv_locked (urb); ++ ohci_complete_add(hc, urb); ++ } ++ break; ++ ++ case PIPE_BULK: ++ case PIPE_CONTROL: /* unlink URB, call complete */ ++ urb_rm_priv_locked (urb); ++ ohci_complete_add(hc, urb); ++ break; ++ } ++ return 0; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* get a transfer request */ ++ ++static int sohci_submit_urb (struct urb * urb) ++{ ++ ohci_t * ohci; ++ ed_t * ed; ++ urb_priv_t * urb_priv; ++ unsigned int pipe = urb->pipe; ++ int maxps = usb_maxpacket (urb->dev, pipe, usb_pipeout (pipe)); ++ int i, size = 0; ++ unsigned long flags; ++ int bustime = 0; ++ int mem_flags = GFP_ATOMIC; ++ ++ if (!urb->dev || !urb->dev->bus) ++ return -ENODEV; ++ ++ if (urb->hcpriv) /* urb already in use */ ++ return -EINVAL; ++ ++// if(usb_endpoint_halted (urb->dev, usb_pipeendpoint (pipe), usb_pipeout (pipe))) ++// return -EPIPE; ++ ++ usb_inc_dev_use (urb->dev); ++ ohci = (ohci_t *) urb->dev->bus->hcpriv; ++ ++#ifdef DEBUG ++ urb_print (urb, "SUB", usb_pipein (pipe)); ++#endif ++ ++ /* handle a request to the virtual root hub */ ++ if (usb_pipedevice (pipe) == ohci->rh.devnum) ++ return rh_submit_urb (urb); ++ ++ spin_lock_irqsave(&ohci->ohci_lock, flags); ++ ++ /* when controller's hung, permit only roothub cleanup attempts ++ * such as powering down ports */ ++ if (ohci->disabled) { ++ spin_unlock_irqrestore(&ohci->ohci_lock, flags); ++ usb_dec_dev_use (urb->dev); ++ return -ESHUTDOWN; ++ } ++ ++ /* every endpoint has a ed, locate and fill it */ ++ if (!(ed = ep_add_ed (urb->dev, pipe, urb->interval, 1, mem_flags))) { ++ spin_unlock_irqrestore(&ohci->ohci_lock, flags); ++ usb_dec_dev_use (urb->dev); ++ return -ENOMEM; ++ } ++ ++ /* for the private part of the URB we need the number of TDs (size) */ ++ switch (usb_pipetype (pipe)) { ++ case PIPE_BULK: /* one TD for every 4096 Byte */ ++ size = (urb->transfer_buffer_length - 1) / 4096 + 1; ++ ++ /* If the transfer size is multiple of the pipe mtu, ++ * we may need an extra TD to create a empty frame ++ * Jean II */ ++ if ((urb->transfer_flags & USB_ZERO_PACKET) && ++ usb_pipeout (pipe) && ++ (urb->transfer_buffer_length != 0) && ++ ((urb->transfer_buffer_length % maxps) == 0)) ++ size++; ++ break; ++ case PIPE_ISOCHRONOUS: /* number of packets from URB */ ++ size = urb->number_of_packets; ++ if (size <= 0) { ++ spin_unlock_irqrestore(&ohci->ohci_lock, flags); ++ usb_dec_dev_use (urb->dev); ++ return -EINVAL; ++ } ++ for (i = 0; i < urb->number_of_packets; i++) { ++ urb->iso_frame_desc[i].actual_length = 0; ++ urb->iso_frame_desc[i].status = -EXDEV; ++ } ++ break; ++ case PIPE_CONTROL: /* 1 TD for setup, 1 for ACK and 1 for every 4096 B */ ++ size = (urb->transfer_buffer_length == 0)? 2: ++ (urb->transfer_buffer_length - 1) / 4096 + 3; ++ break; ++ case PIPE_INTERRUPT: /* one TD */ ++ size = 1; ++ break; ++ } ++ ++ /* allocate the private part of the URB */ ++ urb_priv = kmalloc (sizeof (urb_priv_t) + size * sizeof (td_t *), ++ GFP_ATOMIC); ++ if (!urb_priv) { ++ spin_unlock_irqrestore(&ohci->ohci_lock, flags); ++ usb_dec_dev_use (urb->dev); ++ return -ENOMEM; ++ } ++ memset (urb_priv, 0, sizeof (urb_priv_t) + size * sizeof (td_t *)); ++ ++ /* fill the private part of the URB */ ++ urb_priv->length = size; ++ urb_priv->ed = ed; ++ ++ /* allocate the TDs (updating hash chains) */ ++ for (i = 0; i < size; i++) { ++ urb_priv->td[i] = td_alloc (ohci, SLAB_ATOMIC); ++ if (!urb_priv->td[i]) { ++ urb_priv->length = i; ++ urb_free_priv (ohci, urb_priv); ++ spin_unlock_irqrestore(&ohci->ohci_lock, flags); ++ usb_dec_dev_use (urb->dev); ++ return -ENOMEM; ++ } ++ } ++ ++ if (ed->state == ED_NEW || (ed->state & ED_DEL)) { ++ urb_free_priv (ohci, urb_priv); ++ spin_unlock_irqrestore(&ohci->ohci_lock, flags); ++ usb_dec_dev_use (urb->dev); ++ return -EINVAL; ++ } ++ ++ /* allocate and claim bandwidth if needed; ISO ++ * needs start frame index if it was't provided. ++ */ ++ switch (usb_pipetype (pipe)) { ++ case PIPE_ISOCHRONOUS: ++ if (urb->transfer_flags & USB_ISO_ASAP) { ++ urb->start_frame = ((ed->state == ED_OPER) ++ ? (ed->last_iso + 1) ++ : (le16_to_cpu (ohci->hcca->frame_no) + 10)) & 0xffff; ++ } ++ /* FALLTHROUGH */ ++ case PIPE_INTERRUPT: ++ if (urb->bandwidth == 0) { ++ bustime = usb_check_bandwidth (urb->dev, urb); ++ } ++ if (bustime < 0) { ++ urb_free_priv (ohci, urb_priv); ++ spin_unlock_irqrestore(&ohci->ohci_lock, flags); ++ usb_dec_dev_use (urb->dev); ++ return bustime; ++ } ++ usb_claim_bandwidth (urb->dev, urb, bustime, usb_pipeisoc (urb->pipe)); ++#ifdef DO_TIMEOUTS ++ urb->timeout = 0; ++#endif ++ } ++ ++ urb->actual_length = 0; ++ urb->hcpriv = urb_priv; ++ urb->status = USB_ST_URB_PENDING; ++ ++ /* link the ed into a chain if is not already */ ++ if (ed->state != ED_OPER) ++ ep_link (ohci, ed); ++ ++ /* fill the TDs and link it to the ed */ ++ td_submit_urb (urb); ++ ++#ifdef DO_TIMEOUTS ++ /* maybe add to ordered list of timeouts */ ++ if (urb->timeout) { ++ struct list_head *entry; ++ ++ urb->timeout += jiffies; ++ ++ list_for_each (entry, &ohci->timeout_list) { ++ struct urb *next_urb; ++ ++ next_urb = list_entry (entry, struct urb, urb_list); ++ if (time_after_eq (urb->timeout, next_urb->timeout)) ++ break; ++ } ++ list_add (&urb->urb_list, entry); ++ ++ /* drive timeouts by SF (messy, but works) */ ++ writel (OHCI_INTR_SF, &ohci->regs->intrenable); ++ (void)readl (&ohci->regs->intrdisable); /* PCI posting flush */ ++ } ++#endif ++ ++ spin_unlock_irqrestore(&ohci->ohci_lock, flags); ++ ++ return 0; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* deactivate all TDs and remove the private part of the URB */ ++/* interrupt callers must use async unlink mode */ ++ ++static int sohci_unlink_urb (struct urb * urb) ++{ ++ unsigned long flags; ++ ohci_t * ohci; ++ ++ if (!urb) /* just to be sure */ ++ return -EINVAL; ++ ++ if (!urb->dev || !urb->dev->bus) ++ return -ENODEV; ++ ++ ohci = (ohci_t *) urb->dev->bus->hcpriv; ++ ++#ifdef DEBUG ++ urb_print (urb, "UNLINK", 1); ++#endif ++ ++ /* handle a request to the virtual root hub */ ++ if (usb_pipedevice (urb->pipe) == ohci->rh.devnum) ++ return rh_unlink_urb (urb); ++ ++ spin_lock_irqsave(&ohci->ohci_lock, flags); ++ if (urb->hcpriv && (urb->status == USB_ST_URB_PENDING)) { ++ if (!ohci->disabled) { ++ urb_priv_t * urb_priv; ++ ++ /* interrupt code may not sleep; it must use ++ * async status return to unlink pending urbs. ++ */ ++ if (!(urb->transfer_flags & USB_ASYNC_UNLINK) ++ && in_interrupt ()) { ++ spin_unlock_irqrestore(&ohci->ohci_lock, flags); ++ err ("bug in call from %p; use async!", ++ __builtin_return_address(0)); ++ return -EWOULDBLOCK; ++ } ++ ++ /* flag the urb and its TDs for deletion in some ++ * upcoming SF interrupt delete list processing ++ */ ++ urb_priv = urb->hcpriv; ++ ++ if (!urb_priv || (urb_priv->state == URB_DEL)) { ++ spin_unlock_irqrestore(&ohci->ohci_lock, flags); ++ return 0; ++ } ++ ++ urb_priv->state = URB_DEL; ++ ep_rm_ed (urb->dev, urb_priv->ed); ++ urb_priv->ed->state |= ED_URB_DEL; ++ ++ if (!(urb->transfer_flags & USB_ASYNC_UNLINK)) { ++ DECLARE_WAIT_QUEUE_HEAD (unlink_wakeup); ++ DECLARE_WAITQUEUE (wait, current); ++ int timeout = OHCI_UNLINK_TIMEOUT; ++ ++ add_wait_queue (&unlink_wakeup, &wait); ++ urb_priv->wait = &unlink_wakeup; ++ spin_unlock_irqrestore(&ohci->ohci_lock, flags); ++ ++ /* wait until all TDs are deleted */ ++ set_current_state(TASK_UNINTERRUPTIBLE); ++ while (timeout && (urb->status == USB_ST_URB_PENDING)) { ++ timeout = schedule_timeout (timeout); ++ set_current_state(TASK_UNINTERRUPTIBLE); ++ } ++ set_current_state(TASK_RUNNING); ++ remove_wait_queue (&unlink_wakeup, &wait); ++ if (urb->status == USB_ST_URB_PENDING) { ++ err ("unlink URB timeout"); ++ return -ETIMEDOUT; ++ } ++ ++ usb_dec_dev_use (urb->dev); ++ urb->dev = NULL; ++ if (urb->complete) ++ urb->complete (urb); ++ } else { ++ /* usb_dec_dev_use done in dl_del_list() */ ++ urb->status = -EINPROGRESS; ++ spin_unlock_irqrestore(&ohci->ohci_lock, flags); ++ return -EINPROGRESS; ++ } ++ } else { ++ urb_rm_priv_locked (urb); ++ spin_unlock_irqrestore(&ohci->ohci_lock, flags); ++ usb_dec_dev_use (urb->dev); ++ urb->dev = NULL; ++ if (urb->transfer_flags & USB_ASYNC_UNLINK) { ++ urb->status = -ECONNRESET; ++ if (urb->complete) ++ urb->complete (urb); ++ } else ++ urb->status = -ENOENT; ++ } ++ } else { ++ spin_unlock_irqrestore(&ohci->ohci_lock, flags); ++ } ++ return 0; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* allocate private data space for a usb device */ ++ ++static int sohci_alloc_dev (struct usb_device *usb_dev) ++{ ++ struct ohci_device * dev; ++ ++ dev = dev_alloc ((struct ohci *) usb_dev->bus->hcpriv, ALLOC_FLAGS); ++ if (!dev) ++ return -ENOMEM; ++ ++ usb_dev->hcpriv = dev; ++ return 0; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* may be called from interrupt context */ ++/* frees private data space of usb device */ ++ ++static int sohci_free_dev (struct usb_device * usb_dev) ++{ ++ unsigned long flags; ++ int i, cnt = 0; ++ ed_t * ed; ++ struct ohci_device * dev = usb_to_ohci (usb_dev); ++ ohci_t * ohci = usb_dev->bus->hcpriv; ++ ++ if (!dev) ++ return 0; ++ ++ if (usb_dev->devnum >= 0) { ++ ++ /* driver disconnects should have unlinked all urbs ++ * (freeing all the TDs, unlinking EDs) but we need ++ * to defend against bugs that prevent that. ++ */ ++ spin_lock_irqsave(&ohci->ohci_lock, flags); ++ for(i = 0; i < NUM_EDS; i++) { ++ ed = &(dev->ed[i]); ++ if (ed->state != ED_NEW) { ++ if (ed->state == ED_OPER) { ++ /* driver on that interface didn't unlink an urb */ ++ dbg ("driver usb-%s dev %d ed 0x%x unfreed URB", ++ ohci->ohci_dev->slot_name, usb_dev->devnum, i); ++ ep_unlink (ohci, ed); ++ } ++ ep_rm_ed (usb_dev, ed); ++ ed->state = ED_DEL; ++ cnt++; ++ } ++ } ++ spin_unlock_irqrestore(&ohci->ohci_lock, flags); ++ ++ /* if the controller is running, tds for those unlinked ++ * urbs get freed by dl_del_list at the next SF interrupt ++ */ ++ if (cnt > 0) { ++ ++ if (ohci->disabled) { ++ /* FIXME: Something like this should kick in, ++ * though it's currently an exotic case ... ++ * the controller won't ever be touching ++ * these lists again!! ++ dl_del_list (ohci, ++ le16_to_cpu (ohci->hcca->frame_no) & 1); ++ */ ++ warn ("TD leak, %d", cnt); ++ ++ } else if (!in_interrupt ()) { ++ DECLARE_WAIT_QUEUE_HEAD (freedev_wakeup); ++ DECLARE_WAITQUEUE (wait, current); ++ int timeout = OHCI_UNLINK_TIMEOUT; ++ ++ /* SF interrupt handler calls dl_del_list */ ++ add_wait_queue (&freedev_wakeup, &wait); ++ dev->wait = &freedev_wakeup; ++ set_current_state(TASK_UNINTERRUPTIBLE); ++ while (timeout && dev->ed_cnt) ++ timeout = schedule_timeout (timeout); ++ set_current_state(TASK_RUNNING); ++ remove_wait_queue (&freedev_wakeup, &wait); ++ if (dev->ed_cnt) { ++ err ("free device %d timeout", usb_dev->devnum); ++ return -ETIMEDOUT; ++ } ++ } else { ++ /* likely some interface's driver has a refcount bug */ ++ err ("bus %s devnum %d deletion in interrupt", ++ ohci->ohci_dev->slot_name, usb_dev->devnum); ++ BUG (); ++ } ++ } ++ } ++ ++ /* free device, and associated EDs */ ++ dev_free (ohci, dev); ++ ++ return 0; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* tell us the current USB frame number */ ++ ++static int sohci_get_current_frame_number (struct usb_device *usb_dev) ++{ ++ ohci_t * ohci = usb_dev->bus->hcpriv; ++ ++ return le16_to_cpu (ohci->hcca->frame_no); ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++struct usb_operations sohci_device_operations = { ++ sohci_alloc_dev, ++ sohci_free_dev, ++ sohci_get_current_frame_number, ++ sohci_submit_urb, ++ sohci_unlink_urb ++}; ++ ++/*-------------------------------------------------------------------------* ++ * ED handling functions ++ *-------------------------------------------------------------------------*/ ++ ++/* search for the right branch to insert an interrupt ed into the int tree ++ * do some load ballancing; ++ * returns the branch and ++ * sets the interval to interval = 2^integer (ld (interval)) */ ++ ++static int ep_int_ballance (ohci_t * ohci, int interval, int load) ++{ ++ int i, branch = 0; ++ ++ /* search for the least loaded interrupt endpoint branch of all 32 branches */ ++ for (i = 0; i < 32; i++) ++ if (ohci->ohci_int_load [branch] > ohci->ohci_int_load [i]) branch = i; ++ ++ branch = branch % interval; ++ for (i = branch; i < 32; i += interval) ohci->ohci_int_load [i] += load; ++ ++ return branch; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* 2^int( ld (inter)) */ ++ ++static int ep_2_n_interval (int inter) ++{ ++ int i; ++ for (i = 0; ((inter >> i) > 1 ) && (i < 5); i++); ++ return 1 << i; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* the int tree is a binary tree ++ * in order to process it sequentially the indexes of the branches have to be mapped ++ * the mapping reverses the bits of a word of num_bits length */ ++ ++static int ep_rev (int num_bits, int word) ++{ ++ int i, wout = 0; ++ ++ for (i = 0; i < num_bits; i++) wout |= (((word >> i) & 1) << (num_bits - i - 1)); ++ return wout; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* link an ed into one of the HC chains */ ++ ++static int ep_link (ohci_t * ohci, ed_t * edi) ++{ ++ int int_branch; ++ int i; ++ int inter; ++ int interval; ++ int load; ++ __u32 * ed_p; ++ volatile ed_t * ed = edi; ++ ++ ed->state = ED_OPER; ++ ++ switch (ed->type) { ++ case PIPE_CONTROL: ++ ed->hwNextED = 0; ++ if (ohci->ed_controltail == NULL) { ++ writel (ed->dma, &ohci->regs->ed_controlhead); ++ } else { ++ ohci->ed_controltail->hwNextED = cpu_to_le32 (ed->dma); ++ } ++ ed->ed_prev = ohci->ed_controltail; ++ if (!ohci->ed_controltail && !ohci->ed_rm_list[0] && ++ !ohci->ed_rm_list[1] && !ohci->sleeping) { ++ ohci->hc_control |= OHCI_CTRL_CLE; ++ writel (ohci->hc_control, &ohci->regs->control); ++ } ++ ohci->ed_controltail = edi; ++ break; ++ ++ case PIPE_BULK: ++ ed->hwNextED = 0; ++ if (ohci->ed_bulktail == NULL) { ++ writel (ed->dma, &ohci->regs->ed_bulkhead); ++ } else { ++ ohci->ed_bulktail->hwNextED = cpu_to_le32 (ed->dma); ++ } ++ ed->ed_prev = ohci->ed_bulktail; ++ if (!ohci->ed_bulktail && !ohci->ed_rm_list[0] && ++ !ohci->ed_rm_list[1] && !ohci->sleeping) { ++ ohci->hc_control |= OHCI_CTRL_BLE; ++ writel (ohci->hc_control, &ohci->regs->control); ++ } ++ ohci->ed_bulktail = edi; ++ break; ++ ++ case PIPE_INTERRUPT: ++ load = ed->int_load; ++ interval = ep_2_n_interval (ed->int_period); ++ ed->int_interval = interval; ++ int_branch = ep_int_ballance (ohci, interval, load); ++ ed->int_branch = int_branch; ++ ++ for (i = 0; i < ep_rev (6, interval); i += inter) { ++ inter = 1; ++ for (ed_p = &(ohci->hcca->int_table[ep_rev (5, i) + int_branch]); ++ (*ed_p != 0) && ((dma_to_ed (ohci, le32_to_cpup (ed_p)))->int_interval >= interval); ++ ed_p = &((dma_to_ed (ohci, le32_to_cpup (ed_p)))->hwNextED)) ++ inter = ep_rev (6, (dma_to_ed (ohci, le32_to_cpup (ed_p)))->int_interval); ++ ed->hwNextED = *ed_p; ++ *ed_p = cpu_to_le32 (ed->dma); ++ } ++#ifdef DEBUG ++ ep_print_int_eds (ohci, "LINK_INT"); ++#endif ++ break; ++ ++ case PIPE_ISOCHRONOUS: ++ ed->hwNextED = 0; ++ ed->int_interval = 1; ++ if (ohci->ed_isotail != NULL) { ++ ohci->ed_isotail->hwNextED = cpu_to_le32 (ed->dma); ++ ed->ed_prev = ohci->ed_isotail; ++ } else { ++ for ( i = 0; i < 32; i += inter) { ++ inter = 1; ++ for (ed_p = &(ohci->hcca->int_table[ep_rev (5, i)]); ++ *ed_p != 0; ++ ed_p = &((dma_to_ed (ohci, le32_to_cpup (ed_p)))->hwNextED)) ++ inter = ep_rev (6, (dma_to_ed (ohci, le32_to_cpup (ed_p)))->int_interval); ++ *ed_p = cpu_to_le32 (ed->dma); ++ } ++ ed->ed_prev = NULL; ++ } ++ ohci->ed_isotail = edi; ++#ifdef DEBUG ++ ep_print_int_eds (ohci, "LINK_ISO"); ++#endif ++ break; ++ } ++ return 0; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* scan the periodic table to find and unlink this ED */ ++static void periodic_unlink ( ++ struct ohci *ohci, ++ struct ed *ed, ++ unsigned index, ++ unsigned period ++) { ++ for (; index < NUM_INTS; index += period) { ++ __u32 *ed_p = &ohci->hcca->int_table [index]; ++ ++ /* ED might have been unlinked through another path */ ++ while (*ed_p != 0) { ++ if ((dma_to_ed (ohci, le32_to_cpup (ed_p))) == ed) { ++ *ed_p = ed->hwNextED; ++ break; ++ } ++ ed_p = & ((dma_to_ed (ohci, ++ le32_to_cpup (ed_p)))->hwNextED); ++ } ++ } ++} ++ ++/* 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 */ ++ ++static int ep_unlink (ohci_t * ohci, ed_t * ed) ++{ ++ int i; ++ ++ ed->hwINFO |= cpu_to_le32 (OHCI_ED_SKIP); ++ ++ switch (ed->type) { ++ case PIPE_CONTROL: ++ if (ed->ed_prev == NULL) { ++ if (!ed->hwNextED) { ++ ohci->hc_control &= ~OHCI_CTRL_CLE; ++ writel (ohci->hc_control, &ohci->regs->control); ++ } ++ writel (le32_to_cpup (&ed->hwNextED), &ohci->regs->ed_controlhead); ++ } else { ++ ed->ed_prev->hwNextED = ed->hwNextED; ++ } ++ if (ohci->ed_controltail == ed) { ++ ohci->ed_controltail = ed->ed_prev; ++ } else { ++ (dma_to_ed (ohci, le32_to_cpup (&ed->hwNextED)))->ed_prev = ed->ed_prev; ++ } ++ break; ++ ++ case PIPE_BULK: ++ if (ed->ed_prev == NULL) { ++ if (!ed->hwNextED) { ++ ohci->hc_control &= ~OHCI_CTRL_BLE; ++ writel (ohci->hc_control, &ohci->regs->control); ++ } ++ writel (le32_to_cpup (&ed->hwNextED), &ohci->regs->ed_bulkhead); ++ } else { ++ ed->ed_prev->hwNextED = ed->hwNextED; ++ } ++ if (ohci->ed_bulktail == ed) { ++ ohci->ed_bulktail = ed->ed_prev; ++ } else { ++ (dma_to_ed (ohci, le32_to_cpup (&ed->hwNextED)))->ed_prev = ed->ed_prev; ++ } ++ break; ++ ++ case PIPE_INTERRUPT: ++ periodic_unlink (ohci, ed, 0, 1); ++ for (i = ed->int_branch; i < 32; i += ed->int_interval) ++ ohci->ohci_int_load[i] -= ed->int_load; ++#ifdef DEBUG ++ ep_print_int_eds (ohci, "UNLINK_INT"); ++#endif ++ break; ++ ++ case PIPE_ISOCHRONOUS: ++ if (ohci->ed_isotail == ed) ++ ohci->ed_isotail = ed->ed_prev; ++ if (ed->hwNextED != 0) ++ (dma_to_ed (ohci, le32_to_cpup (&ed->hwNextED))) ++ ->ed_prev = ed->ed_prev; ++ ++ if (ed->ed_prev != NULL) ++ ed->ed_prev->hwNextED = ed->hwNextED; ++ else ++ periodic_unlink (ohci, ed, 0, 1); ++#ifdef DEBUG ++ ep_print_int_eds (ohci, "UNLINK_ISO"); ++#endif ++ break; ++ } ++ ed->state = ED_UNLINK; ++ return 0; ++} ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* add/reinit an endpoint; this should be done once at the usb_set_configuration command, ++ * but the USB stack is a little bit stateless so we do it at every transaction ++ * if the state of the ed is ED_NEW then a dummy td is added and the state is changed to ED_UNLINK ++ * in all other cases the state is left unchanged ++ * the ed info fields are setted anyway even though most of them should not change */ ++ ++static ed_t * ep_add_ed ( ++ struct usb_device * usb_dev, ++ unsigned int pipe, ++ int interval, ++ int load, ++ int mem_flags ++) ++{ ++ ohci_t * ohci = usb_dev->bus->hcpriv; ++ td_t * td; ++ ed_t * ed_ret; ++ volatile ed_t * ed; ++ ++ ed = ed_ret = &(usb_to_ohci (usb_dev)->ed[(usb_pipeendpoint (pipe) << 1) | ++ (usb_pipecontrol (pipe)? 0: usb_pipeout (pipe))]); ++ ++ if ((ed->state & ED_DEL) || (ed->state & ED_URB_DEL)) { ++ /* pending delete request */ ++ return NULL; ++ } ++ ++ if (ed->state == ED_NEW) { ++ ed->hwINFO = cpu_to_le32 (OHCI_ED_SKIP); /* skip ed */ ++ /* dummy td; end of td list for ed */ ++ td = td_alloc (ohci, SLAB_ATOMIC); ++ /* hash the ed for later reverse mapping */ ++ if (!td || !hash_add_ed (ohci, (ed_t *)ed)) { ++ /* out of memory */ ++ if (td) ++ td_free(ohci, td); ++ return NULL; ++ } ++ ed->hwTailP = cpu_to_le32 (td->td_dma); ++ ed->hwHeadP = ed->hwTailP; ++ ed->state = ED_UNLINK; ++ ed->type = usb_pipetype (pipe); ++ usb_to_ohci (usb_dev)->ed_cnt++; ++ } ++ ++ ohci->dev[usb_pipedevice (pipe)] = usb_dev; ++ ++ ed->hwINFO = cpu_to_le32 (usb_pipedevice (pipe) ++ | usb_pipeendpoint (pipe) << 7 ++ | (usb_pipeisoc (pipe)? 0x8000: 0) ++ | (usb_pipecontrol (pipe)? 0: (usb_pipeout (pipe)? 0x800: 0x1000)) ++ | usb_pipeslow (pipe) << 13 ++ | usb_maxpacket (usb_dev, pipe, usb_pipeout (pipe)) << 16); ++ ++ if (ed->type == PIPE_INTERRUPT && ed->state == ED_UNLINK) { ++ ed->int_period = interval; ++ ed->int_load = load; ++ } ++ ++ return ed_ret; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* request the removal of an endpoint ++ * put the ep on the rm_list and request a stop of the bulk or ctrl list ++ * real removal is done at the next start frame (SF) hardware interrupt */ ++ ++static void ep_rm_ed (struct usb_device * usb_dev, ed_t * ed) ++{ ++ unsigned int frame; ++ ohci_t * ohci = usb_dev->bus->hcpriv; ++ ++ if ((ed->state & ED_DEL) || (ed->state & ED_URB_DEL)) ++ return; ++ ++ ed->hwINFO |= cpu_to_le32 (OHCI_ED_SKIP); ++ ++ if (!ohci->disabled) { ++ switch (ed->type) { ++ case PIPE_CONTROL: /* stop control list */ ++ ohci->hc_control &= ~OHCI_CTRL_CLE; ++ writel (ohci->hc_control, &ohci->regs->control); ++ break; ++ case PIPE_BULK: /* stop bulk list */ ++ ohci->hc_control &= ~OHCI_CTRL_BLE; ++ writel (ohci->hc_control, &ohci->regs->control); ++ break; ++ } ++ } ++ ++ frame = le16_to_cpu (ohci->hcca->frame_no) & 0x1; ++ ed->ed_rm_list = ohci->ed_rm_list[frame]; ++ ohci->ed_rm_list[frame] = ed; ++ ++ if (!ohci->disabled && !ohci->sleeping) { ++ /* enable SOF interrupt */ ++ writel (OHCI_INTR_SF, &ohci->regs->intrstatus); ++ writel (OHCI_INTR_SF, &ohci->regs->intrenable); ++ (void)readl (&ohci->regs->intrdisable); /* PCI posting flush */ ++ } ++} ++ ++/*-------------------------------------------------------------------------* ++ * TD handling functions ++ *-------------------------------------------------------------------------*/ ++ ++/* enqueue next TD for this URB (OHCI spec 5.2.8.2) */ ++ ++static void ++td_fill (ohci_t * ohci, unsigned int info, ++ dma_addr_t data, int len, ++ struct urb * urb, int index) ++{ ++ volatile td_t * td, * td_pt; ++ urb_priv_t * urb_priv = urb->hcpriv; ++ ++ if (index >= urb_priv->length) { ++ err("internal OHCI error: TD index > length"); ++ return; ++ } ++ ++ /* use this td as the next dummy */ ++ td_pt = urb_priv->td [index]; ++ td_pt->hwNextTD = 0; ++ ++ /* fill the old dummy TD */ ++ td = urb_priv->td [index] = dma_to_td (ohci, ++ le32_to_cpup (&urb_priv->ed->hwTailP) & ~0xf); ++ ++ td->ed = urb_priv->ed; ++ td->next_dl_td = NULL; ++ td->index = index; ++ td->urb = urb; ++ td->data_dma = data; ++ if (!len) ++ data = 0; ++ ++ td->hwINFO = cpu_to_le32 (info); ++ if ((td->ed->type) == PIPE_ISOCHRONOUS) { ++ td->hwCBP = cpu_to_le32 (data & 0xFFFFF000); ++ td->ed->last_iso = info & 0xffff; ++ } else { ++ td->hwCBP = cpu_to_le32 (data); ++ } ++ if (data) ++ td->hwBE = cpu_to_le32 (data + len - 1); ++ else ++ td->hwBE = 0; ++ td->hwNextTD = cpu_to_le32 (td_pt->td_dma); ++ td->hwPSW [0] = cpu_to_le16 ((data & 0x0FFF) | 0xE000); ++ ++ /* append to queue */ ++ wmb(); ++ td->ed->hwTailP = td->hwNextTD; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* prepare all TDs of a transfer */ ++ ++static void td_submit_urb (struct urb * urb) ++{ ++ urb_priv_t * urb_priv = urb->hcpriv; ++ ohci_t * ohci = (ohci_t *) urb->dev->bus->hcpriv; ++ dma_addr_t data; ++ int data_len = urb->transfer_buffer_length; ++ int maxps = usb_maxpacket (urb->dev, urb->pipe, usb_pipeout (urb->pipe)); ++ int cnt = 0; ++ __u32 info = 0; ++ unsigned int toggle = 0; ++ ++ /* OHCI handles the DATA-toggles itself, we just use the USB-toggle bits for reseting */ ++ if(usb_gettoggle(urb->dev, usb_pipeendpoint(urb->pipe), usb_pipeout(urb->pipe))) { ++ toggle = TD_T_TOGGLE; ++ } else { ++ toggle = TD_T_DATA0; ++ usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe), usb_pipeout(urb->pipe), 1); ++ } ++ ++ urb_priv->td_cnt = 0; ++ ++ if (data_len) { ++ data = pci_map_single (ohci->ohci_dev, ++ urb->transfer_buffer, data_len, ++ usb_pipeout (urb->pipe) ++ ? PCI_DMA_TODEVICE ++ : PCI_DMA_FROMDEVICE ++ ); ++ } else ++ data = 0; ++ ++ switch (usb_pipetype (urb->pipe)) { ++ case PIPE_BULK: ++ info = usb_pipeout (urb->pipe)? ++ TD_CC | TD_DP_OUT : TD_CC | TD_DP_IN ; ++ while(data_len > 4096) { ++ td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, 4096, urb, cnt); ++ data += 4096; data_len -= 4096; cnt++; ++ } ++ info = usb_pipeout (urb->pipe)? ++ TD_CC | TD_DP_OUT : TD_CC | TD_R | TD_DP_IN ; ++ td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), data, data_len, urb, cnt); ++ cnt++; ++ ++ /* If the transfer size is multiple of the pipe mtu, ++ * we may need an extra TD to create a empty frame ++ * Note : another way to check this condition is ++ * to test if(urb_priv->length > cnt) - Jean II */ ++ if ((urb->transfer_flags & USB_ZERO_PACKET) && ++ usb_pipeout (urb->pipe) && ++ (urb->transfer_buffer_length != 0) && ++ ((urb->transfer_buffer_length % maxps) == 0)) { ++ td_fill (ohci, info | (cnt? TD_T_TOGGLE:toggle), 0, 0, urb, cnt); ++ cnt++; ++ } ++ ++ if (!ohci->sleeping) { ++ wmb(); ++ writel (OHCI_BLF, &ohci->regs->cmdstatus); /* start bulk list */ ++ (void)readl (&ohci->regs->intrdisable); /* PCI posting flush */ ++ } ++ break; ++ ++ case PIPE_INTERRUPT: ++ info = usb_pipeout (urb->pipe)? ++ TD_CC | TD_DP_OUT | toggle: TD_CC | TD_R | TD_DP_IN | toggle; ++ td_fill (ohci, info, data, data_len, urb, cnt++); ++ break; ++ ++ case PIPE_CONTROL: ++ info = TD_CC | TD_DP_SETUP | TD_T_DATA0; ++ td_fill (ohci, info, ++ pci_map_single (ohci->ohci_dev, ++ urb->setup_packet, 8, ++ PCI_DMA_TODEVICE), ++ 8, urb, cnt++); ++ if (data_len > 0) { ++ info = usb_pipeout (urb->pipe)? ++ TD_CC | TD_R | TD_DP_OUT | TD_T_DATA1 : TD_CC | TD_R | TD_DP_IN | TD_T_DATA1; ++ /* NOTE: mishandles transfers >8K, some >4K */ ++ td_fill (ohci, info, data, data_len, urb, cnt++); ++ } ++ info = usb_pipeout (urb->pipe)? ++ TD_CC | TD_DP_IN | TD_T_DATA1: TD_CC | TD_DP_OUT | TD_T_DATA1; ++ td_fill (ohci, info, data, 0, urb, cnt++); ++ if (!ohci->sleeping) { ++ wmb(); ++ writel (OHCI_CLF, &ohci->regs->cmdstatus); /* start Control list */ ++ (void)readl (&ohci->regs->intrdisable); /* PCI posting flush */ ++ } ++ break; ++ ++ case PIPE_ISOCHRONOUS: ++ for (cnt = 0; cnt < urb->number_of_packets; cnt++) { ++ td_fill (ohci, TD_CC|TD_ISO | ((urb->start_frame + cnt) & 0xffff), ++ data + urb->iso_frame_desc[cnt].offset, ++ urb->iso_frame_desc[cnt].length, urb, cnt); ++ } ++ break; ++ } ++ if (urb_priv->length != cnt) ++ dbg("TD LENGTH %d != CNT %d", urb_priv->length, cnt); ++} ++ ++/*-------------------------------------------------------------------------* ++ * Done List handling functions ++ *-------------------------------------------------------------------------*/ ++ ++ ++/* calculate the transfer length and update the urb */ ++ ++static void dl_transfer_length(td_t * td) ++{ ++ __u32 tdINFO, tdBE, tdCBP; ++ __u16 tdPSW; ++ struct urb * urb = td->urb; ++ urb_priv_t * urb_priv = urb->hcpriv; ++ int dlen = 0; ++ int cc = 0; ++ ++ tdINFO = le32_to_cpup (&td->hwINFO); ++ tdBE = le32_to_cpup (&td->hwBE); ++ tdCBP = le32_to_cpup (&td->hwCBP); ++ ++ ++ if (tdINFO & TD_ISO) { ++ tdPSW = le16_to_cpu (td->hwPSW[0]); ++ cc = (tdPSW >> 12) & 0xF; ++ if (cc < 0xE) { ++ if (usb_pipeout(urb->pipe)) { ++ dlen = urb->iso_frame_desc[td->index].length; ++ } else { ++ dlen = tdPSW & 0x3ff; ++ } ++ urb->actual_length += dlen; ++ urb->iso_frame_desc[td->index].actual_length = dlen; ++ if (!(urb->transfer_flags & USB_DISABLE_SPD) && (cc == TD_DATAUNDERRUN)) ++ cc = TD_CC_NOERROR; ++ ++ urb->iso_frame_desc[td->index].status = cc_to_error[cc]; ++ } ++ } else { /* BULK, INT, CONTROL DATA */ ++ if (!(usb_pipetype (urb->pipe) == PIPE_CONTROL && ++ ((td->index == 0) || (td->index == urb_priv->length - 1)))) { ++ if (tdBE != 0) { ++ if (td->hwCBP == 0) ++ urb->actual_length += tdBE - td->data_dma + 1; ++ else ++ urb->actual_length += tdCBP - td->data_dma; ++ } ++ } ++ } ++} ++ ++/* handle an urb that is being unlinked */ ++ ++static void dl_del_urb (ohci_t *ohci, struct urb * urb) ++{ ++ wait_queue_head_t * wait_head = ((urb_priv_t *)(urb->hcpriv))->wait; ++ ++ urb_rm_priv_locked (urb); ++ ++ if (urb->transfer_flags & USB_ASYNC_UNLINK) { ++ urb->status = -ECONNRESET; ++ ohci_complete_add(ohci, urb); ++ } else { ++ urb->status = -ENOENT; ++ ++ /* unblock sohci_unlink_urb */ ++ if (wait_head) ++ wake_up (wait_head); ++ } ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* replies to the request have to be on a FIFO basis so ++ * we reverse the reversed done-list */ ++ ++static td_t * dl_reverse_done_list (ohci_t * ohci) ++{ ++ __u32 td_list_hc; ++ td_t * td_rev = NULL; ++ td_t * td_list = NULL; ++ urb_priv_t * urb_priv = NULL; ++ ++ td_list_hc = le32_to_cpup (&ohci->hcca->done_head) & 0xfffffff0; ++ ohci->hcca->done_head = 0; ++ ++ while (td_list_hc) { ++ td_list = dma_to_td (ohci, td_list_hc); ++ ++ if (TD_CC_GET (le32_to_cpup (&td_list->hwINFO))) { ++ urb_priv = (urb_priv_t *) td_list->urb->hcpriv; ++ dbg(" USB-error/status: %x : %p", ++ TD_CC_GET (le32_to_cpup (&td_list->hwINFO)), td_list); ++ if (td_list->ed->hwHeadP & cpu_to_le32 (0x1)) { ++ if (urb_priv && ((td_list->index + 1) < urb_priv->length)) { ++ td_list->ed->hwHeadP = ++ (urb_priv->td[urb_priv->length - 1]->hwNextTD & cpu_to_le32 (0xfffffff0)) | ++ (td_list->ed->hwHeadP & cpu_to_le32 (0x2)); ++ urb_priv->td_cnt += urb_priv->length - td_list->index - 1; ++ } else ++ td_list->ed->hwHeadP &= cpu_to_le32 (0xfffffff2); ++ } ++ } ++ ++ td_list->next_dl_td = td_rev; ++ td_rev = td_list; ++ td_list_hc = le32_to_cpup (&td_list->hwNextTD) & 0xfffffff0; ++ } ++ return td_list; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* there are some pending requests to remove ++ * - some of the eds (if ed->state & ED_DEL (set by sohci_free_dev) ++ * - some URBs/TDs if urb_priv->state == URB_DEL */ ++ ++static void dl_del_list (ohci_t * ohci, unsigned int frame) ++{ ++ ed_t * ed; ++ __u32 edINFO; ++ __u32 tdINFO; ++ td_t * td = NULL, * td_next = NULL, * tdHeadP = NULL, * tdTailP; ++ __u32 * td_p; ++ int ctrl = 0, bulk = 0; ++ ++ for (ed = ohci->ed_rm_list[frame]; ed != NULL; ed = ed->ed_rm_list) { ++ ++ tdTailP = dma_to_td (ohci, le32_to_cpup (&ed->hwTailP) & 0xfffffff0); ++ tdHeadP = dma_to_td (ohci, le32_to_cpup (&ed->hwHeadP) & 0xfffffff0); ++ edINFO = le32_to_cpup (&ed->hwINFO); ++ td_p = &ed->hwHeadP; ++ ++ for (td = tdHeadP; td != tdTailP; td = td_next) { ++ struct urb * urb = td->urb; ++ urb_priv_t * urb_priv = td->urb->hcpriv; ++ ++ td_next = dma_to_td (ohci, le32_to_cpup (&td->hwNextTD) & 0xfffffff0); ++ if ((urb_priv->state == URB_DEL) || (ed->state & ED_DEL)) { ++ tdINFO = le32_to_cpup (&td->hwINFO); ++ if (TD_CC_GET (tdINFO) < 0xE) ++ dl_transfer_length (td); ++ *td_p = td->hwNextTD | (*td_p & cpu_to_le32 (0x3)); ++ ++ /* URB is done; clean up */ ++ if (++(urb_priv->td_cnt) == urb_priv->length) ++ dl_del_urb (ohci, urb); ++ } else { ++ td_p = &td->hwNextTD; ++ } ++ } ++ ++ if (ed->state & ED_DEL) { /* set by sohci_free_dev */ ++ struct ohci_device * dev = usb_to_ohci (ohci->dev[edINFO & 0x7F]); ++ td_free (ohci, tdTailP); /* free dummy td */ ++ ed->hwINFO = cpu_to_le32 (OHCI_ED_SKIP); ++ ed->state = ED_NEW; ++ hash_free_ed(ohci, ed); ++ /* if all eds are removed wake up sohci_free_dev */ ++ if (!--dev->ed_cnt) { ++ wait_queue_head_t *wait_head = dev->wait; ++ ++ dev->wait = 0; ++ if (wait_head) ++ wake_up (wait_head); ++ } ++ } else { ++ ed->state &= ~ED_URB_DEL; ++ tdHeadP = dma_to_td (ohci, le32_to_cpup (&ed->hwHeadP) & 0xfffffff0); ++ ++ if (tdHeadP == tdTailP) { ++ if (ed->state == ED_OPER) ++ ep_unlink(ohci, ed); ++ } else ++ ed->hwINFO &= ~cpu_to_le32 (OHCI_ED_SKIP); ++ } ++ ++ switch (ed->type) { ++ case PIPE_CONTROL: ++ ctrl = 1; ++ break; ++ case PIPE_BULK: ++ bulk = 1; ++ break; ++ } ++ } ++ ++ /* maybe reenable control and bulk lists */ ++ if (!ohci->disabled) { ++ if (ctrl) /* reset control list */ ++ writel (0, &ohci->regs->ed_controlcurrent); ++ if (bulk) /* reset bulk list */ ++ writel (0, &ohci->regs->ed_bulkcurrent); ++ if (!ohci->ed_rm_list[!frame] && !ohci->sleeping) { ++ if (ohci->ed_controltail) ++ ohci->hc_control |= OHCI_CTRL_CLE; ++ if (ohci->ed_bulktail) ++ ohci->hc_control |= OHCI_CTRL_BLE; ++ writel (ohci->hc_control, &ohci->regs->control); ++ } ++ } ++ ++ ohci->ed_rm_list[frame] = NULL; ++} ++ ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* td done list */ ++ ++static void dl_done_list (ohci_t * ohci, td_t * td_list) ++{ ++ td_t * td_list_next = NULL; ++ ed_t * ed; ++ int cc = 0; ++ struct urb * urb; ++ urb_priv_t * urb_priv; ++ __u32 tdINFO, edHeadP, edTailP; ++ ++ while (td_list) { ++ td_list_next = td_list->next_dl_td; ++ ++ urb = td_list->urb; ++ urb_priv = urb->hcpriv; ++ tdINFO = le32_to_cpup (&td_list->hwINFO); ++ ++ ed = td_list->ed; ++ ++ dl_transfer_length(td_list); ++ ++ /* error code of transfer */ ++ cc = TD_CC_GET (tdINFO); ++ if (cc == TD_CC_STALL) ++ usb_endpoint_halt(urb->dev, ++ usb_pipeendpoint(urb->pipe), ++ usb_pipeout(urb->pipe)); ++ ++ if (!(urb->transfer_flags & USB_DISABLE_SPD) ++ && (cc == TD_DATAUNDERRUN)) ++ cc = TD_CC_NOERROR; ++ ++ if (++(urb_priv->td_cnt) == urb_priv->length) { ++ if ((ed->state & (ED_OPER | ED_UNLINK)) ++ && (urb_priv->state != URB_DEL)) { ++ urb->status = cc_to_error[cc]; ++ sohci_return_urb (ohci, urb); ++ } else { ++ dl_del_urb (ohci, urb); ++ } ++ } ++ ++ if (ed->state != ED_NEW) { ++ edHeadP = le32_to_cpup (&ed->hwHeadP) & 0xfffffff0; ++ edTailP = le32_to_cpup (&ed->hwTailP); ++ ++ /* unlink eds if they are not busy */ ++ if ((edHeadP == edTailP) && (ed->state == ED_OPER)) ++ ep_unlink (ohci, ed); ++ } ++ ++ td_list = td_list_next; ++ } ++} ++ ++ ++ ++ ++/*-------------------------------------------------------------------------* ++ * Virtual Root Hub ++ *-------------------------------------------------------------------------*/ ++ ++/* Device descriptor */ ++static __u8 root_hub_dev_des[] = ++{ ++ 0x12, /* __u8 bLength; */ ++ 0x01, /* __u8 bDescriptorType; Device */ ++ 0x10, /* __u16 bcdUSB; v1.1 */ ++ 0x01, ++ 0x09, /* __u8 bDeviceClass; HUB_CLASSCODE */ ++ 0x00, /* __u8 bDeviceSubClass; */ ++ 0x00, /* __u8 bDeviceProtocol; */ ++ 0x08, /* __u8 bMaxPacketSize0; 8 Bytes */ ++ 0x00, /* __u16 idVendor; */ ++ 0x00, ++ 0x00, /* __u16 idProduct; */ ++ 0x00, ++ 0x00, /* __u16 bcdDevice; */ ++ 0x00, ++ 0x00, /* __u8 iManufacturer; */ ++ 0x02, /* __u8 iProduct; */ ++ 0x01, /* __u8 iSerialNumber; */ ++ 0x01 /* __u8 bNumConfigurations; */ ++}; ++ ++ ++/* Configuration descriptor */ ++static __u8 root_hub_config_des[] = ++{ ++ 0x09, /* __u8 bLength; */ ++ 0x02, /* __u8 bDescriptorType; Configuration */ ++ 0x19, /* __u16 wTotalLength; */ ++ 0x00, ++ 0x01, /* __u8 bNumInterfaces; */ ++ 0x01, /* __u8 bConfigurationValue; */ ++ 0x00, /* __u8 iConfiguration; */ ++ 0x40, /* __u8 bmAttributes; ++ Bit 7: Bus-powered, 6: Self-powered, 5 Remote-wakwup, 4..0: resvd */ ++ 0x00, /* __u8 MaxPower; */ ++ ++ /* interface */ ++ 0x09, /* __u8 if_bLength; */ ++ 0x04, /* __u8 if_bDescriptorType; Interface */ ++ 0x00, /* __u8 if_bInterfaceNumber; */ ++ 0x00, /* __u8 if_bAlternateSetting; */ ++ 0x01, /* __u8 if_bNumEndpoints; */ ++ 0x09, /* __u8 if_bInterfaceClass; HUB_CLASSCODE */ ++ 0x00, /* __u8 if_bInterfaceSubClass; */ ++ 0x00, /* __u8 if_bInterfaceProtocol; */ ++ 0x00, /* __u8 if_iInterface; */ ++ ++ /* endpoint */ ++ 0x07, /* __u8 ep_bLength; */ ++ 0x05, /* __u8 ep_bDescriptorType; Endpoint */ ++ 0x81, /* __u8 ep_bEndpointAddress; IN Endpoint 1 */ ++ 0x03, /* __u8 ep_bmAttributes; Interrupt */ ++ 0x02, /* __u16 ep_wMaxPacketSize; ((MAX_ROOT_PORTS + 1) / 8 */ ++ 0x00, ++ 0xff /* __u8 ep_bInterval; 255 ms */ ++}; ++ ++/* Hub class-specific descriptor is constructed dynamically */ ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* prepare Interrupt pipe data; HUB INTERRUPT ENDPOINT */ ++ ++static int rh_send_irq (ohci_t * ohci, void * rh_data, int rh_len) ++{ ++ int num_ports; ++ int i; ++ int ret; ++ int len; ++ ++ __u8 data[8]; ++ ++ num_ports = roothub_a (ohci) & RH_A_NDP; ++ if (num_ports > MAX_ROOT_PORTS) { ++ err ("bogus NDP=%d for OHCI usb-%s", num_ports, ++ ohci->ohci_dev->slot_name); ++ err ("rereads as NDP=%d", ++ readl (&ohci->regs->roothub.a) & RH_A_NDP); ++ /* retry later; "should not happen" */ ++ return 0; ++ } ++ *(__u8 *) data = (roothub_status (ohci) & (RH_HS_LPSC | RH_HS_OCIC)) ++ ? 1: 0; ++ ret = *(__u8 *) data; ++ ++ for ( i = 0; i < num_ports; i++) { ++ *(__u8 *) (data + (i + 1) / 8) |= ++ ((roothub_portstatus (ohci, i) & ++ (RH_PS_CSC | RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC | RH_PS_PRSC)) ++ ? 1: 0) << ((i + 1) % 8); ++ ret += *(__u8 *) (data + (i + 1) / 8); ++ } ++ len = i/8 + 1; ++ ++ if (ret > 0) { ++ memcpy(rh_data, data, ++ min_t(unsigned int, len, ++ min_t(unsigned int, rh_len, sizeof(data)))); ++ return len; ++ } ++ return 0; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* Virtual Root Hub INTs are polled by this timer every "interval" ms */ ++ ++static void rh_int_timer_do (unsigned long ptr) ++{ ++ int len; ++ ++ struct urb * urb = (struct urb *) ptr; ++ ohci_t * ohci = urb->dev->bus->hcpriv; ++ ++ if (ohci->disabled) ++ return; ++ ++ /* ignore timers firing during PM suspend, etc */ ++ if ((ohci->hc_control & OHCI_CTRL_HCFS) != OHCI_USB_OPER) ++ goto out; ++ ++ if(ohci->rh.send) { ++ len = rh_send_irq (ohci, urb->transfer_buffer, urb->transfer_buffer_length); ++ if (len > 0) { ++ urb->actual_length = len; ++#ifdef DEBUG ++ urb_print (urb, "RET-t(rh)", usb_pipeout (urb->pipe)); ++#endif ++ if (urb->complete) ++ urb->complete (urb); ++ } ++ } ++ out: ++ rh_init_int_timer (urb); ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* Root Hub INTs are polled by this timer */ ++ ++static int rh_init_int_timer (struct urb * urb) ++{ ++ ohci_t * ohci = urb->dev->bus->hcpriv; ++ ++ ohci->rh.interval = urb->interval; ++ init_timer (&ohci->rh.rh_int_timer); ++ ohci->rh.rh_int_timer.function = rh_int_timer_do; ++ ohci->rh.rh_int_timer.data = (unsigned long) urb; ++ ohci->rh.rh_int_timer.expires = ++ jiffies + (HZ * (urb->interval < 30? 30: urb->interval)) / 1000; ++ add_timer (&ohci->rh.rh_int_timer); ++ ++ return 0; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++#define OK(x) len = (x); break ++#define WR_RH_STAT(x) writel((x), &ohci->regs->roothub.status) ++#define WR_RH_PORTSTAT(x) writel((x), &ohci->regs->roothub.portstatus[wIndex-1]) ++#define RD_RH_STAT roothub_status(ohci) ++#define RD_RH_PORTSTAT roothub_portstatus(ohci,wIndex-1) ++ ++/* request to virtual root hub */ ++ ++static int rh_submit_urb (struct urb * urb) ++{ ++ struct usb_device * usb_dev = urb->dev; ++ ohci_t * ohci = usb_dev->bus->hcpriv; ++ unsigned int pipe = urb->pipe; ++ struct usb_ctrlrequest * cmd = (struct usb_ctrlrequest *) urb->setup_packet; ++ void * data = urb->transfer_buffer; ++ int leni = urb->transfer_buffer_length; ++ int len = 0; ++ int status = TD_CC_NOERROR; ++ unsigned long flags; ++ ++ __u32 datab[4]; ++ __u8 * data_buf = (__u8 *) datab; ++ ++ __u16 bmRType_bReq; ++ __u16 wValue; ++ __u16 wIndex; ++ __u16 wLength; ++ ++ spin_lock_irqsave(&ohci->ohci_lock, flags); ++ ++ if (usb_pipeint(pipe)) { ++ ohci->rh.urb = urb; ++ ohci->rh.send = 1; ++ ohci->rh.interval = urb->interval; ++ rh_init_int_timer(urb); ++ urb->status = cc_to_error [TD_CC_NOERROR]; ++ ++ spin_unlock_irqrestore(&ohci->ohci_lock, flags); ++ return 0; ++ } ++ ++ bmRType_bReq = cmd->bRequestType | (cmd->bRequest << 8); ++ wValue = le16_to_cpu (cmd->wValue); ++ wIndex = le16_to_cpu (cmd->wIndex); ++ wLength = le16_to_cpu (cmd->wLength); ++ ++ switch (bmRType_bReq) { ++ /* Request Destination: ++ without flags: Device, ++ RH_INTERFACE: interface, ++ RH_ENDPOINT: endpoint, ++ RH_CLASS means HUB here, ++ RH_OTHER | RH_CLASS almost ever means HUB_PORT here ++ */ ++ ++ case RH_GET_STATUS: ++ *(__u16 *) data_buf = cpu_to_le16 (1); OK (2); ++ case RH_GET_STATUS | RH_INTERFACE: ++ *(__u16 *) data_buf = cpu_to_le16 (0); OK (2); ++ case RH_GET_STATUS | RH_ENDPOINT: ++ *(__u16 *) data_buf = cpu_to_le16 (0); OK (2); ++ case RH_GET_STATUS | RH_CLASS: ++ *(__u32 *) data_buf = cpu_to_le32 ( ++ RD_RH_STAT & ~(RH_HS_CRWE | RH_HS_DRWE)); ++ OK (4); ++ case RH_GET_STATUS | RH_OTHER | RH_CLASS: ++ *(__u32 *) data_buf = cpu_to_le32 (RD_RH_PORTSTAT); OK (4); ++ ++ case RH_CLEAR_FEATURE | RH_ENDPOINT: ++ switch (wValue) { ++ case (RH_ENDPOINT_STALL): OK (0); ++ } ++ break; ++ ++ case RH_CLEAR_FEATURE | RH_CLASS: ++ switch (wValue) { ++ case RH_C_HUB_LOCAL_POWER: ++ OK(0); ++ case (RH_C_HUB_OVER_CURRENT): ++ WR_RH_STAT(RH_HS_OCIC); OK (0); ++ } ++ break; ++ ++ case RH_CLEAR_FEATURE | RH_OTHER | RH_CLASS: ++ switch (wValue) { ++ case (RH_PORT_ENABLE): ++ WR_RH_PORTSTAT (RH_PS_CCS ); OK (0); ++ case (RH_PORT_SUSPEND): ++ WR_RH_PORTSTAT (RH_PS_POCI); OK (0); ++ case (RH_PORT_POWER): ++ WR_RH_PORTSTAT (RH_PS_LSDA); OK (0); ++ case (RH_C_PORT_CONNECTION): ++ WR_RH_PORTSTAT (RH_PS_CSC ); OK (0); ++ case (RH_C_PORT_ENABLE): ++ WR_RH_PORTSTAT (RH_PS_PESC); OK (0); ++ case (RH_C_PORT_SUSPEND): ++ WR_RH_PORTSTAT (RH_PS_PSSC); OK (0); ++ case (RH_C_PORT_OVER_CURRENT): ++ WR_RH_PORTSTAT (RH_PS_OCIC); OK (0); ++ case (RH_C_PORT_RESET): ++ WR_RH_PORTSTAT (RH_PS_PRSC); OK (0); ++ } ++ break; ++ ++ case RH_SET_FEATURE | RH_OTHER | RH_CLASS: ++ switch (wValue) { ++ case (RH_PORT_SUSPEND): ++ WR_RH_PORTSTAT (RH_PS_PSS ); OK (0); ++ case (RH_PORT_RESET): /* BUG IN HUP CODE *********/ ++ if (RD_RH_PORTSTAT & RH_PS_CCS) ++ WR_RH_PORTSTAT (RH_PS_PRS); ++ OK (0); ++ case (RH_PORT_POWER): ++ WR_RH_PORTSTAT (RH_PS_PPS ); OK (0); ++ case (RH_PORT_ENABLE): /* BUG IN HUP CODE *********/ ++ if (RD_RH_PORTSTAT & RH_PS_CCS) ++ WR_RH_PORTSTAT (RH_PS_PES ); ++ OK (0); ++ } ++ break; ++ ++ case RH_SET_ADDRESS: ohci->rh.devnum = wValue; OK(0); ++ ++ case RH_GET_DESCRIPTOR: ++ switch ((wValue & 0xff00) >> 8) { ++ case (0x01): /* device descriptor */ ++ len = min_t(unsigned int, ++ leni, ++ min_t(unsigned int, ++ sizeof (root_hub_dev_des), ++ wLength)); ++ data_buf = root_hub_dev_des; OK(len); ++ case (0x02): /* configuration descriptor */ ++ len = min_t(unsigned int, ++ leni, ++ min_t(unsigned int, ++ sizeof (root_hub_config_des), ++ wLength)); ++ data_buf = root_hub_config_des; OK(len); ++ case (0x03): /* string descriptors */ ++ len = usb_root_hub_string (wValue & 0xff, ++ (int)(long) ohci->regs, "OHCI", ++ data, wLength); ++ if (len > 0) { ++ data_buf = data; ++ OK(min_t(int, leni, len)); ++ } ++ // else fallthrough ++ default: ++ status = TD_CC_STALL; ++ } ++ break; ++ ++ case RH_GET_DESCRIPTOR | RH_CLASS: ++ { ++ __u32 temp = roothub_a (ohci); ++ ++ data_buf [0] = 9; // min length; ++ data_buf [1] = 0x29; ++ data_buf [2] = temp & RH_A_NDP; ++ data_buf [3] = 0; ++ if (temp & RH_A_PSM) /* per-port power switching? */ ++ data_buf [3] |= 0x1; ++ if (temp & RH_A_NOCP) /* no overcurrent reporting? */ ++ data_buf [3] |= 0x10; ++ else if (temp & RH_A_OCPM) /* per-port overcurrent reporting? */ ++ data_buf [3] |= 0x8; ++ ++ datab [1] = 0; ++ data_buf [5] = (temp & RH_A_POTPGT) >> 24; ++ temp = roothub_b (ohci); ++ data_buf [7] = temp & RH_B_DR; ++ if (data_buf [2] < 7) { ++ data_buf [8] = 0xff; ++ } else { ++ data_buf [0] += 2; ++ data_buf [8] = (temp & RH_B_DR) >> 8; ++ data_buf [10] = data_buf [9] = 0xff; ++ } ++ ++ len = min_t(unsigned int, leni, ++ min_t(unsigned int, data_buf [0], wLength)); ++ OK (len); ++ } ++ ++ case RH_GET_CONFIGURATION: *(__u8 *) data_buf = 0x01; OK (1); ++ ++ case RH_SET_CONFIGURATION: WR_RH_STAT (0x10000); OK (0); ++ ++ default: ++ dbg ("unsupported root hub command"); ++ status = TD_CC_STALL; ++ } ++ ++#ifdef DEBUG ++ // ohci_dump_roothub (ohci, 0); ++#endif ++ ++ len = min_t(int, len, leni); ++ if (data != data_buf) ++ memcpy (data, data_buf, len); ++ urb->actual_length = len; ++ urb->status = cc_to_error [status]; ++ ++#ifdef DEBUG ++ urb_print (urb, "RET(rh)", usb_pipeout (urb->pipe)); ++#endif ++ ++ urb->hcpriv = NULL; ++ spin_unlock_irqrestore(&ohci->ohci_lock, flags); ++ usb_dec_dev_use (usb_dev); ++ urb->dev = NULL; ++ if (urb->complete) ++ urb->complete (urb); ++ return 0; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++static int rh_unlink_urb (struct urb * urb) ++{ ++ ohci_t * ohci = urb->dev->bus->hcpriv; ++ unsigned int flags; ++ ++ spin_lock_irqsave(&ohci->ohci_lock, flags); ++ if (ohci->rh.urb == urb) { ++ ohci->rh.send = 0; ++ del_timer (&ohci->rh.rh_int_timer); ++ ohci->rh.urb = NULL; ++ ++ urb->hcpriv = NULL; ++ spin_unlock_irqrestore(&ohci->ohci_lock, flags); ++ usb_dec_dev_use(urb->dev); ++ urb->dev = NULL; ++ if (urb->transfer_flags & USB_ASYNC_UNLINK) { ++ urb->status = -ECONNRESET; ++ if (urb->complete) ++ urb->complete (urb); ++ } else ++ urb->status = -ENOENT; ++ } else { ++ spin_unlock_irqrestore(&ohci->ohci_lock, flags); ++ } ++ return 0; ++} ++ ++/*-------------------------------------------------------------------------* ++ * HC functions ++ *-------------------------------------------------------------------------*/ ++ ++/* reset the HC and BUS */ ++ ++static int hc_reset (ohci_t * ohci) ++{ ++ int timeout = 30; ++ int smm_timeout = 50; /* 0,5 sec */ ++ ++#ifndef __hppa__ ++ /* PA-RISC doesn't have SMM, but PDC might leave IR set */ ++ if (readl (&ohci->regs->control) & OHCI_CTRL_IR) { /* SMM owns the HC */ ++ writel (OHCI_OCR, &ohci->regs->cmdstatus); /* request ownership */ ++ dbg("USB HC TakeOver from SMM"); ++ while (readl (&ohci->regs->control) & OHCI_CTRL_IR) { ++ wait_ms (10); ++ if (--smm_timeout == 0) { ++ err("USB HC TakeOver failed!"); ++ return -1; ++ } ++ } ++ } ++#endif ++ ++ /* Disable HC interrupts */ ++ writel (OHCI_INTR_MIE, &ohci->regs->intrdisable); ++ ++ dbg("USB HC reset_hc usb-%s: ctrl = 0x%x ;", ++ ohci->ohci_dev->slot_name, ++ readl (&ohci->regs->control)); ++ ++ /* Reset USB (needed by some controllers) */ ++ writel (0, &ohci->regs->control); ++ ++ /* Force a state change from USBRESET to USBOPERATIONAL for ALi */ ++ (void) readl (&ohci->regs->control); /* PCI posting */ ++ writel (ohci->hc_control = OHCI_USB_OPER, &ohci->regs->control); ++ ++ /* HC Reset requires max 10 ms delay */ ++ writel (OHCI_HCR, &ohci->regs->cmdstatus); ++ while ((readl (&ohci->regs->cmdstatus) & OHCI_HCR) != 0) { ++ if (--timeout == 0) { ++ err("USB HC reset timed out!"); ++ return -1; ++ } ++ udelay (1); ++ } ++ return 0; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* Start an OHCI controller, set the BUS operational ++ * enable interrupts ++ * connect the virtual root hub */ ++ ++static int hc_start (ohci_t * ohci) ++{ ++ __u32 mask; ++ unsigned int fminterval; ++ struct usb_device * usb_dev; ++ struct ohci_device * dev; ++ ++ ohci->disabled = 1; ++ ++ /* Tell the controller where the control and bulk lists are ++ * The lists are empty now. */ ++ ++ writel (0, &ohci->regs->ed_controlhead); ++ writel (0, &ohci->regs->ed_bulkhead); ++ ++ writel (ohci->hcca_dma, &ohci->regs->hcca); /* a reset clears this */ ++ ++ fminterval = 0x2edf; ++ writel ((fminterval * 9) / 10, &ohci->regs->periodicstart); ++ fminterval |= ((((fminterval - 210) * 6) / 7) << 16); ++ writel (fminterval, &ohci->regs->fminterval); ++ writel (0x628, &ohci->regs->lsthresh); ++ ++ /* start controller operations */ ++ ohci->hc_control = OHCI_CONTROL_INIT | OHCI_USB_OPER; ++ ohci->disabled = 0; ++ writel (ohci->hc_control, &ohci->regs->control); ++ ++ /* Choose the interrupts we care about now, others later on demand */ ++ mask = OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_WDH | OHCI_INTR_SO; ++ writel (mask, &ohci->regs->intrenable); ++ writel (mask, &ohci->regs->intrstatus); ++ ++#ifdef OHCI_USE_NPS ++ if(ohci->flags & OHCI_QUIRK_SUCKYIO) ++ { ++ /* NSC 87560 at least requires different setup .. */ ++ writel ((roothub_a (ohci) | RH_A_NOCP) & ++ ~(RH_A_OCPM | RH_A_POTPGT | RH_A_PSM | RH_A_NPS), ++ &ohci->regs->roothub.a); ++ } ++ else ++ { ++ /* required for AMD-756 and some Mac platforms */ ++ writel ((roothub_a (ohci) | RH_A_NPS) & ~RH_A_PSM, ++ &ohci->regs->roothub.a); ++ } ++ writel (RH_HS_LPSC, &ohci->regs->roothub.status); ++#endif /* OHCI_USE_NPS */ ++ ++ (void)readl (&ohci->regs->intrdisable); /* PCI posting flush */ ++ ++ // POTPGT delay is bits 24-31, in 2 ms units. ++ mdelay ((roothub_a (ohci) >> 23) & 0x1fe); ++ ++ /* connect the virtual root hub */ ++ ohci->rh.devnum = 0; ++ usb_dev = usb_alloc_dev (NULL, ohci->bus); ++ if (!usb_dev) { ++ ohci->disabled = 1; ++ return -ENOMEM; ++ } ++ ++ dev = usb_to_ohci (usb_dev); ++ ohci->bus->root_hub = usb_dev; ++ usb_connect (usb_dev); ++ if (usb_new_device (usb_dev) != 0) { ++ usb_free_dev (usb_dev); ++ ohci->disabled = 1; ++ return -ENODEV; ++ } ++ ++ return 0; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* called only from interrupt handler */ ++ ++static void check_timeouts (struct ohci *ohci) ++{ ++ spin_lock (&ohci->ohci_lock); ++ while (!list_empty (&ohci->timeout_list)) { ++ struct urb *urb; ++ ++ urb = list_entry (ohci->timeout_list.next, struct urb, urb_list); ++ if (time_after (jiffies, urb->timeout)) ++ break; ++ ++ list_del_init (&urb->urb_list); ++ if (urb->status != -EINPROGRESS) ++ continue; ++ ++ urb->transfer_flags |= USB_TIMEOUT_KILLED | USB_ASYNC_UNLINK; ++ spin_unlock (&ohci->ohci_lock); ++ ++ // outside the interrupt handler (in a timer...) ++ // this reference would race interrupts ++ sohci_unlink_urb (urb); ++ ++ spin_lock (&ohci->ohci_lock); ++ } ++ spin_unlock (&ohci->ohci_lock); ++} ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* an interrupt happens */ ++ ++static void hc_interrupt (int irq, void * __ohci, struct pt_regs * r) ++{ ++ ohci_t * ohci = __ohci; ++ struct ohci_regs * regs = ohci->regs; ++ int ints; ++ ++ spin_lock (&ohci->ohci_lock); ++ ++ /* avoid (slow) readl if only WDH happened */ ++ if ((ohci->hcca->done_head != 0) ++ && !(le32_to_cpup (&ohci->hcca->done_head) & 0x01)) { ++ ints = OHCI_INTR_WDH; ++ ++ /* cardbus/... hardware gone before remove() */ ++ } else if ((ints = readl (®s->intrstatus)) == ~(u32)0) { ++ ohci->disabled++; ++ spin_unlock (&ohci->ohci_lock); ++ err ("%s device removed!", ohci->ohci_dev->slot_name); ++ return; ++ ++ /* interrupt for some other device? */ ++ } else if ((ints &= readl (®s->intrenable)) == 0) { ++ spin_unlock (&ohci->ohci_lock); ++ return; ++ } ++ ++ // dbg("Interrupt: %x frame: %x", ints, le16_to_cpu (ohci->hcca->frame_no)); ++ ++ if (ints & OHCI_INTR_UE) { ++ ohci->disabled++; ++ err ("OHCI Unrecoverable Error, controller usb-%s disabled", ++ ohci->ohci_dev->slot_name); ++ // e.g. due to PCI Master/Target Abort ++ ++#ifdef DEBUG ++ ohci_dump (ohci, 1); ++#else ++ // FIXME: be optimistic, hope that bug won't repeat often. ++ // Make some non-interrupt context restart the controller. ++ // Count and limit the retries though; either hardware or ++ // software errors can go forever... ++#endif ++ hc_reset (ohci); ++ } ++ ++ if (ints & OHCI_INTR_WDH) { ++ writel (OHCI_INTR_WDH, ®s->intrdisable); ++ (void)readl (®s->intrdisable); /* PCI posting flush */ ++ dl_done_list (ohci, dl_reverse_done_list (ohci)); ++ writel (OHCI_INTR_WDH, ®s->intrenable); ++ (void)readl (®s->intrdisable); /* PCI posting flush */ ++ } ++ ++ if (ints & OHCI_INTR_SO) { ++ dbg("USB Schedule overrun"); ++ writel (OHCI_INTR_SO, ®s->intrenable); ++ (void)readl (®s->intrdisable); /* PCI posting flush */ ++ } ++ ++ // FIXME: this assumes SOF (1/ms) interrupts don't get lost... ++ if (ints & OHCI_INTR_SF) { ++ unsigned int frame = le16_to_cpu (ohci->hcca->frame_no) & 1; ++ writel (OHCI_INTR_SF, ®s->intrdisable); ++ (void)readl (®s->intrdisable); /* PCI posting flush */ ++ if (ohci->ed_rm_list[!frame] != NULL) { ++ dl_del_list (ohci, !frame); ++ } ++ if (ohci->ed_rm_list[frame] != NULL) { ++ writel (OHCI_INTR_SF, ®s->intrenable); ++ (void)readl (®s->intrdisable); /* PCI posting flush */ ++ } ++ } ++ ++ /* ++ * Finally, we are done with trashing about our hardware lists ++ * and other CPUs are allowed in. The festive flipping of the lock ++ * ensues as we struggle with the check_timeouts disaster. ++ */ ++ spin_unlock (&ohci->ohci_lock); ++ ++ if (!list_empty (&ohci->timeout_list)) { ++ check_timeouts (ohci); ++// FIXME: enable SF as needed in a timer; ++// don't make lots of 1ms interrupts ++// On unloaded USB, think 4k ~= 4-5msec ++ if (!list_empty (&ohci->timeout_list)) ++ writel (OHCI_INTR_SF, ®s->intrenable); ++ } ++ ++ writel (ints, ®s->intrstatus); ++ writel (OHCI_INTR_MIE, ®s->intrenable); ++ (void)readl (®s->intrdisable); /* PCI posting flush */ ++ ++ ohci_complete(ohci); ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* allocate OHCI */ ++ ++static ohci_t * __devinit hc_alloc_ohci (struct pci_dev *dev, void * mem_base) ++{ ++ ohci_t * ohci; ++ ++ ohci = (ohci_t *) kmalloc (sizeof *ohci, GFP_KERNEL); ++ if (!ohci) ++ return NULL; ++ ++ memset (ohci, 0, sizeof (ohci_t)); ++ ++ ohci->hcca = pci_alloc_consistent (dev, sizeof *ohci->hcca, ++ &ohci->hcca_dma); ++ if (!ohci->hcca) { ++ kfree (ohci); ++ return NULL; ++ } ++ memset (ohci->hcca, 0, sizeof (struct ohci_hcca)); ++ ++ ohci->disabled = 1; ++ ohci->sleeping = 0; ++ ohci->irq = -1; ++ ohci->regs = mem_base; ++ ++ ohci->ohci_dev = dev; ++ pci_set_drvdata(dev, ohci); ++ ++ INIT_LIST_HEAD (&ohci->timeout_list); ++ spin_lock_init(&ohci->ohci_lock); ++ ++ ohci->bus = usb_alloc_bus (&sohci_device_operations); ++ if (!ohci->bus) { ++ pci_set_drvdata (dev, NULL); ++ pci_free_consistent (ohci->ohci_dev, sizeof *ohci->hcca, ++ ohci->hcca, ohci->hcca_dma); ++ kfree (ohci); ++ return NULL; ++ } ++ ohci->bus->bus_name = dev->slot_name; ++ ohci->bus->hcpriv = (void *) ohci; ++ ++ return ohci; ++} ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* De-allocate all resources.. */ ++ ++static void hc_release_ohci (ohci_t * ohci) ++{ ++ dbg ("USB HC release ohci usb-%s", ohci->ohci_dev->slot_name); ++ ++ /* disconnect all devices */ ++ if (ohci->bus->root_hub) ++ usb_disconnect (&ohci->bus->root_hub); ++ ++ if (!ohci->disabled) ++ hc_reset (ohci); ++ ++ if (ohci->irq >= 0) { ++ free_irq (ohci->irq, ohci); ++ ohci->irq = -1; ++ } ++ pci_set_drvdata(ohci->ohci_dev, NULL); ++ if (ohci->bus) { ++ if (ohci->bus->busnum != -1) ++ usb_deregister_bus (ohci->bus); ++ ++ usb_free_bus (ohci->bus); ++ } ++ ++ ohci_mem_cleanup (ohci); ++ ++ /* unmap the IO address space */ ++ iounmap (ohci->regs); ++ ++ pci_free_consistent (ohci->ohci_dev, sizeof *ohci->hcca, ++ ohci->hcca, ohci->hcca_dma); ++ kfree (ohci); ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* Increment the module usage count, start the control thread and ++ * return success. */ ++ ++static struct pci_driver ohci_pci_driver; ++ ++static int __devinit ++hc_found_ohci (struct pci_dev *dev, int irq, ++ void *mem_base, const struct pci_device_id *id) ++{ ++ ohci_t * ohci; ++ char buf[8], *bufp = buf; ++ int ret; ++ ++#ifndef __sparc__ ++ sprintf(buf, "%d", irq); ++#else ++ bufp = __irq_itoa(irq); ++#endif ++ printk(KERN_INFO __FILE__ ": USB OHCI at membase 0x%lx, IRQ %s\n", ++ (unsigned long) mem_base, bufp); ++ printk(KERN_INFO __FILE__ ": usb-%s, %s\n", dev->slot_name, dev->name); ++ ++ ohci = hc_alloc_ohci (dev, mem_base); ++ if (!ohci) { ++ return -ENOMEM; ++ } ++ if ((ret = ohci_mem_init (ohci)) < 0) { ++ hc_release_ohci (ohci); ++ return ret; ++ } ++ ohci->flags = id->driver_data; ++ ++ /* 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 ++ I don't know.. */ ++ ++ if(dev->vendor == PCI_VENDOR_ID_NS) ++ { ++ struct pci_dev *fn1 = pci_find_slot(dev->bus->number, PCI_DEVFN(PCI_SLOT(dev->devfn), 1)); ++ if(fn1 && fn1->vendor == PCI_VENDOR_ID_NS && fn1->device == PCI_DEVICE_ID_NS_87560_LIO) ++ ohci->flags |= OHCI_QUIRK_SUCKYIO; ++ ++ } ++ ++ if (ohci->flags & OHCI_QUIRK_SUCKYIO) ++ printk (KERN_INFO __FILE__ ": Using NSC SuperIO setup\n"); ++ if (ohci->flags & OHCI_QUIRK_AMD756) ++ printk (KERN_INFO __FILE__ ": AMD756 erratum 4 workaround\n"); ++ ++ if (hc_reset (ohci) < 0) { ++ hc_release_ohci (ohci); ++ return -ENODEV; ++ } ++ ++ /* FIXME this is a second HC reset; why?? */ ++ writel (ohci->hc_control = OHCI_USB_RESET, &ohci->regs->control); ++ (void)readl (&ohci->regs->intrdisable); /* PCI posting flush */ ++ wait_ms (10); ++ ++ usb_register_bus (ohci->bus); ++ ++ if (request_irq (irq, hc_interrupt, SA_SHIRQ, ++ ohci_pci_driver.name, ohci) != 0) { ++ err ("request interrupt %s failed", bufp); ++ hc_release_ohci (ohci); ++ return -EBUSY; ++ } ++ ohci->irq = irq; ++ ++ if (hc_start (ohci) < 0) { ++ err ("can't start usb-%s", dev->slot_name); ++ hc_release_ohci (ohci); ++ return -EBUSY; ++ } ++ ++#ifdef DEBUG ++ ohci_dump (ohci, 1); ++#endif ++ return 0; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++#ifdef CONFIG_PM ++ ++/* controller died; cleanup debris, then restart */ ++/* must not be called from interrupt context */ ++ ++static void hc_restart (ohci_t *ohci) ++{ ++ int temp; ++ int i; ++ ++ if (ohci->pci_latency) ++ pci_write_config_byte (ohci->ohci_dev, PCI_LATENCY_TIMER, ohci->pci_latency); ++ ++ ohci->disabled = 1; ++ ohci->sleeping = 0; ++ if (ohci->bus->root_hub) ++ usb_disconnect (&ohci->bus->root_hub); ++ ++ /* empty the interrupt branches */ ++ for (i = 0; i < NUM_INTS; i++) ohci->ohci_int_load[i] = 0; ++ for (i = 0; i < NUM_INTS; i++) ohci->hcca->int_table[i] = 0; ++ ++ /* no EDs to remove */ ++ ohci->ed_rm_list [0] = NULL; ++ ohci->ed_rm_list [1] = NULL; ++ ++ /* empty control and bulk lists */ ++ ohci->ed_isotail = NULL; ++ ohci->ed_controltail = NULL; ++ ohci->ed_bulktail = NULL; ++ ++ if ((temp = hc_reset (ohci)) < 0 || (temp = hc_start (ohci)) < 0) { ++ err ("can't restart usb-%s, %d", ohci->ohci_dev->slot_name, temp); ++ } else ++ dbg ("restart usb-%s completed", ohci->ohci_dev->slot_name); ++} ++ ++#endif /* CONFIG_PM */ ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* configured so that an OHCI device is always provided */ ++/* always called with process context; sleeping is OK */ ++ ++static int __devinit ++ohci_pci_probe (struct pci_dev *dev, const struct pci_device_id *id) ++{ ++ unsigned long mem_resource, mem_len; ++ void *mem_base; ++ int status; ++ ++ if (pci_enable_device(dev) < 0) ++ return -ENODEV; ++ ++ if (!dev->irq) { ++ err("found OHCI device with no IRQ assigned. check BIOS settings!"); ++ pci_disable_device (dev); ++ return -ENODEV; ++ } ++ ++ /* we read its hardware registers as memory */ ++ mem_resource = pci_resource_start(dev, 0); ++ mem_len = pci_resource_len(dev, 0); ++ if (!request_mem_region (mem_resource, mem_len, ohci_pci_driver.name)) { ++ dbg ("controller already in use"); ++ pci_disable_device (dev); ++ return -EBUSY; ++ } ++ ++ mem_base = ioremap_nocache (mem_resource, mem_len); ++ if (!mem_base) { ++ err("Error mapping OHCI memory"); ++ release_mem_region (mem_resource, mem_len); ++ pci_disable_device (dev); ++ return -EFAULT; ++ } ++ ++ /* controller writes into our memory */ ++ pci_set_master (dev); ++ ++ status = hc_found_ohci (dev, dev->irq, mem_base, id); ++ if (status < 0) { ++ iounmap (mem_base); ++ release_mem_region (mem_resource, mem_len); ++ pci_disable_device (dev); ++ } ++ return status; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++/* may be called from interrupt context [interface spec] */ ++/* may be called without controller present */ ++/* may be called with controller, bus, and devices active */ ++ ++static void __devexit ++ohci_pci_remove (struct pci_dev *dev) ++{ ++ ohci_t *ohci = pci_get_drvdata(dev); ++ ++ dbg ("remove %s controller usb-%s%s%s", ++ hcfs2string (ohci->hc_control & OHCI_CTRL_HCFS), ++ dev->slot_name, ++ ohci->disabled ? " (disabled)" : "", ++ in_interrupt () ? " in interrupt" : "" ++ ); ++#ifdef DEBUG ++ ohci_dump (ohci, 1); ++#endif ++ ++ /* don't wake up sleeping controllers, or block in interrupt context */ ++ if ((ohci->hc_control & OHCI_CTRL_HCFS) != OHCI_USB_OPER || in_interrupt ()) { ++ dbg ("controller being disabled"); ++ ohci->disabled = 1; ++ } ++ ++ /* on return, USB will always be reset (if present) */ ++ if (ohci->disabled) ++ writel (ohci->hc_control = OHCI_USB_RESET, ++ &ohci->regs->control); ++ ++ hc_release_ohci (ohci); ++ ++ release_mem_region (pci_resource_start (dev, 0), pci_resource_len (dev, 0)); ++ pci_disable_device (dev); ++} ++ ++ ++#ifdef CONFIG_PM ++ ++/*-------------------------------------------------------------------------*/ ++ ++static int ++ohci_pci_suspend (struct pci_dev *dev, u32 state) ++{ ++ ohci_t *ohci = pci_get_drvdata(dev); ++ unsigned long flags; ++ u16 cmd; ++ ++ if ((ohci->hc_control & OHCI_CTRL_HCFS) != OHCI_USB_OPER) { ++ dbg ("can't suspend usb-%s (state is %s)", dev->slot_name, ++ hcfs2string (ohci->hc_control & OHCI_CTRL_HCFS)); ++ return -EIO; ++ } ++ ++ /* act as if usb suspend can always be used */ ++ info ("USB suspend: usb-%s", dev->slot_name); ++ ohci->sleeping = 1; ++ ++ /* First stop processing */ ++ spin_lock_irqsave (&ohci->ohci_lock, flags); ++ ohci->hc_control &= ~(OHCI_CTRL_PLE|OHCI_CTRL_CLE|OHCI_CTRL_BLE|OHCI_CTRL_IE); ++ writel (ohci->hc_control, &ohci->regs->control); ++ writel (OHCI_INTR_SF, &ohci->regs->intrstatus); ++ (void) readl (&ohci->regs->intrstatus); ++ spin_unlock_irqrestore (&ohci->ohci_lock, flags); ++ ++ /* Wait a frame or two */ ++ mdelay(1); ++ if (!readl (&ohci->regs->intrstatus) & OHCI_INTR_SF) ++ mdelay (1); ++ ++#ifdef CONFIG_PMAC_PBOOK ++ if (_machine == _MACH_Pmac) ++ disable_irq (ohci->irq); ++ /* else, 2.4 assumes shared irqs -- don't disable */ ++#endif ++ /* Enable remote wakeup */ ++ writel (readl(&ohci->regs->intrenable) | OHCI_INTR_RD, &ohci->regs->intrenable); ++ ++ /* Suspend chip and let things settle down a bit */ ++ ohci->hc_control = OHCI_USB_SUSPEND; ++ writel (ohci->hc_control, &ohci->regs->control); ++ (void) readl (&ohci->regs->control); ++ mdelay (500); /* No schedule here ! */ ++ switch (readl (&ohci->regs->control) & OHCI_CTRL_HCFS) { ++ case OHCI_USB_RESET: ++ dbg("Bus in reset phase ???"); ++ break; ++ case OHCI_USB_RESUME: ++ dbg("Bus in resume phase ???"); ++ break; ++ case OHCI_USB_OPER: ++ dbg("Bus in operational phase ???"); ++ break; ++ case OHCI_USB_SUSPEND: ++ dbg("Bus suspended"); ++ break; ++ } ++ /* In some rare situations, Apple's OHCI have happily trashed ++ * memory during sleep. We disable it's bus master bit during ++ * suspend ++ */ ++ pci_read_config_word (dev, PCI_COMMAND, &cmd); ++ cmd &= ~PCI_COMMAND_MASTER; ++ pci_write_config_word (dev, PCI_COMMAND, cmd); ++#ifdef CONFIG_PMAC_PBOOK ++ { ++ struct device_node *of_node; ++ ++ /* Disable USB PAD & cell clock */ ++ of_node = pci_device_to_OF_node (ohci->ohci_dev); ++ if (of_node) ++ pmac_call_feature(PMAC_FTR_USB_ENABLE, of_node, 0, 0); ++ } ++#endif ++ return 0; ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++static int ++ohci_pci_resume (struct pci_dev *dev) ++{ ++ ohci_t *ohci = pci_get_drvdata(dev); ++ int temp; ++ unsigned long flags; ++ ++ /* guard against multiple resumes */ ++ atomic_inc (&ohci->resume_count); ++ if (atomic_read (&ohci->resume_count) != 1) { ++ err ("concurrent PCI resumes for usb-%s", dev->slot_name); ++ atomic_dec (&ohci->resume_count); ++ return 0; ++ } ++ ++#ifdef CONFIG_PMAC_PBOOK ++ { ++ struct device_node *of_node; ++ ++ /* Re-enable USB PAD & cell clock */ ++ of_node = pci_device_to_OF_node (ohci->ohci_dev); ++ if (of_node) ++ pmac_call_feature(PMAC_FTR_USB_ENABLE, of_node, 0, 1); ++ } ++#endif ++ ++ /* did we suspend, or were we powered off? */ ++ ohci->hc_control = readl (&ohci->regs->control); ++ temp = ohci->hc_control & OHCI_CTRL_HCFS; ++ ++#ifdef DEBUG ++ /* the registers may look crazy here */ ++ ohci_dump_status (ohci); ++#endif ++ ++ /* Re-enable bus mastering */ ++ pci_set_master(ohci->ohci_dev); ++ ++ switch (temp) { ++ ++ case OHCI_USB_RESET: // lost power ++ info ("USB restart: usb-%s", dev->slot_name); ++ hc_restart (ohci); ++ break; ++ ++ case OHCI_USB_SUSPEND: // host wakeup ++ case OHCI_USB_RESUME: // remote wakeup ++ info ("USB continue: usb-%s from %s wakeup", dev->slot_name, ++ (temp == OHCI_USB_SUSPEND) ++ ? "host" : "remote"); ++ ohci->hc_control = OHCI_USB_RESUME; ++ writel (ohci->hc_control, &ohci->regs->control); ++ (void) readl (&ohci->regs->control); ++ mdelay (20); /* no schedule here ! */ ++ /* Some controllers (lucent) need a longer delay here */ ++ mdelay (15); ++ temp = readl (&ohci->regs->control); ++ temp = ohci->hc_control & OHCI_CTRL_HCFS; ++ if (temp != OHCI_USB_RESUME) { ++ err ("controller usb-%s won't resume", dev->slot_name); ++ ohci->disabled = 1; ++ return -EIO; ++ } ++ ++ /* Some chips likes being resumed first */ ++ writel (OHCI_USB_OPER, &ohci->regs->control); ++ (void) readl (&ohci->regs->control); ++ mdelay (3); ++ ++ /* Then re-enable operations */ ++ spin_lock_irqsave (&ohci->ohci_lock, flags); ++ ohci->disabled = 0; ++ ohci->sleeping = 0; ++ ohci->hc_control = OHCI_CONTROL_INIT | OHCI_USB_OPER; ++ if (!ohci->ed_rm_list[0] && !ohci->ed_rm_list[1]) { ++ if (ohci->ed_controltail) ++ ohci->hc_control |= OHCI_CTRL_CLE; ++ if (ohci->ed_bulktail) ++ ohci->hc_control |= OHCI_CTRL_BLE; ++ } ++ writel (ohci->hc_control, &ohci->regs->control); ++ writel (OHCI_INTR_SF, &ohci->regs->intrstatus); ++ writel (OHCI_INTR_SF, &ohci->regs->intrenable); ++ /* Check for a pending done list */ ++ writel (OHCI_INTR_WDH, &ohci->regs->intrdisable); ++ (void) readl (&ohci->regs->intrdisable); ++#ifdef CONFIG_PMAC_PBOOK ++ if (_machine == _MACH_Pmac) ++ enable_irq (ohci->irq); ++#endif ++ if (ohci->hcca->done_head) ++ dl_done_list (ohci, dl_reverse_done_list (ohci)); ++ writel (OHCI_INTR_WDH, &ohci->regs->intrenable); ++ writel (OHCI_BLF, &ohci->regs->cmdstatus); /* start bulk list */ ++ writel (OHCI_CLF, &ohci->regs->cmdstatus); /* start Control list */ ++ spin_unlock_irqrestore (&ohci->ohci_lock, flags); ++ break; ++ ++ default: ++ warn ("odd PCI resume for usb-%s", dev->slot_name); ++ } ++ ++ /* controller is operational, extra resumes are harmless */ ++ atomic_dec (&ohci->resume_count); ++ ++ return 0; ++} ++ ++#endif /* CONFIG_PM */ ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++static const struct pci_device_id __devinitdata ohci_pci_ids [] = { { ++ ++ /* ++ * AMD-756 [Viper] USB has a serious erratum when used with ++ * lowspeed devices like mice. ++ */ ++ vendor: 0x1022, ++ device: 0x740c, ++ subvendor: PCI_ANY_ID, ++ subdevice: PCI_ANY_ID, ++ ++ driver_data: OHCI_QUIRK_AMD756, ++ ++} , { ++ ++ /* handle any USB OHCI controller */ ++ class: ((PCI_CLASS_SERIAL_USB << 8) | 0x10), ++ class_mask: ~0, ++ ++ /* no matter who makes it */ ++ vendor: PCI_ANY_ID, ++ device: PCI_ANY_ID, ++ subvendor: PCI_ANY_ID, ++ subdevice: PCI_ANY_ID, ++ ++ }, { /* end: all zeroes */ } ++}; ++ ++MODULE_DEVICE_TABLE (pci, ohci_pci_ids); ++ ++static struct pci_driver ohci_pci_driver = { ++ name: "usb-ohci", ++ id_table: &ohci_pci_ids [0], ++ ++ probe: ohci_pci_probe, ++ remove: __devexit_p(ohci_pci_remove), ++ ++#ifdef CONFIG_PM ++ suspend: ohci_pci_suspend, ++ resume: ohci_pci_resume, ++#endif /* PM */ ++}; ++ ++ ++/*-------------------------------------------------------------------------*/ ++ ++static int __init ohci_hcd_init (void) ++{ ++ return pci_module_init (&ohci_pci_driver); ++} ++ ++/*-------------------------------------------------------------------------*/ ++ ++static void __exit ohci_hcd_cleanup (void) ++{ ++ pci_unregister_driver (&ohci_pci_driver); ++} ++ ++module_init (ohci_hcd_init); ++module_exit (ohci_hcd_cleanup); ++ ++ ++MODULE_AUTHOR( DRIVER_AUTHOR ); ++MODULE_DESCRIPTION( DRIVER_DESC ); ++MODULE_LICENSE("GPL"); |