git.oblomov.eu Git - linux-2.6/blob - drivers/usb/host/u132-hcd.c

   1 /*
   2 * Host Controller Driver for the Elan Digital Systems U132 adapter
   3 *
   4 * Copyright(C) 2006 Elan Digital Systems Limited
   5 * http://www.elandigitalsystems.com
   6 *
   7 * Author and Maintainer - Tony Olech - Elan Digital Systems
   8 * tony.olech@elandigitalsystems.com
   9 *
  10 * This program is free software;you can redistribute it and/or
  11 * modify it under the terms of the GNU General Public License as
  12 * published by the Free Software Foundation, version 2.
  13 *
  14 *
  15 * This driver was written by Tony Olech(tony.olech@elandigitalsystems.com)
  16 * based on various USB host drivers in the 2.6.15 linux kernel
  17 * with constant reference to the 3rd Edition of Linux Device Drivers
  18 * published by O'Reilly
  19 *
  20 * The U132 adapter is a USB to CardBus adapter specifically designed
  21 * for PC cards that contain an OHCI host controller. Typical PC cards
  22 * are the Orange Mobile 3G Option GlobeTrotter Fusion card.
  23 *
  24 * The U132 adapter will *NOT *work with PC cards that do not contain
  25 * an OHCI controller. A simple way to test whether a PC card has an
  26 * OHCI controller as an interface is to insert the PC card directly
  27 * into a laptop(or desktop) with a CardBus slot and if "lspci" shows
  28 * a new USB controller and "lsusb -v" shows a new OHCI Host Controller
  29 * then there is a good chance that the U132 adapter will support the
  30 * PC card.(you also need the specific client driver for the PC card)
  31 *
  32 * Please inform the Author and Maintainer about any PC cards that
  33 * contain OHCI Host Controller and work when directly connected to
  34 * an embedded CardBus slot but do not work when they are connected
  35 * via an ELAN U132 adapter.
  36 *
  37 */
  38 #include <linux/kernel.h>
  39 #include <linux/module.h>
  40 #include <linux/moduleparam.h>
  41 #include <linux/delay.h>
  42 #include <linux/ioport.h>
  43 #include <linux/pci_ids.h>
  44 #include <linux/sched.h>
  45 #include <linux/slab.h>
  46 #include <linux/smp_lock.h>
  47 #include <linux/errno.h>
  48 #include <linux/init.h>
  49 #include <linux/timer.h>
  50 #include <linux/list.h>
  51 #include <linux/interrupt.h>
  52 #include <linux/usb.h>
  53 #include <linux/workqueue.h>
  54 #include <linux/platform_device.h>
  55 #include <linux/pci_ids.h>
  56 #include <asm/io.h>
  57 #include <asm/irq.h>
  58 #include <asm/system.h>
  59 #include <asm/byteorder.h>
  60 #include "../core/hcd.h"
  61 #include "ohci.h"
  62 #define OHCI_CONTROL_INIT OHCI_CTRL_CBSR
  63 #define OHCI_INTR_INIT (OHCI_INTR_MIE | OHCI_INTR_UE | OHCI_INTR_RD | \
  64         OHCI_INTR_WDH)
  65 MODULE_AUTHOR("Tony Olech - Elan Digital Systems Limited");
  66 MODULE_DESCRIPTION("U132 USB Host Controller Driver");
  67 MODULE_LICENSE("GPL");
  68 #define INT_MODULE_PARM(n, v) static int n = v;module_param(n, int, 0444)
  69 INT_MODULE_PARM(testing, 0);
  70 /* Some boards misreport power switching/overcurrent*/
  71 static int distrust_firmware = 1;
  72 module_param(distrust_firmware, bool, 0);
  73 MODULE_PARM_DESC(distrust_firmware, "true to distrust firmware power/overcurren"
  74         "t setup");
  75 static DECLARE_WAIT_QUEUE_HEAD(u132_hcd_wait);
  76 /*
  77 * u132_module_lock exists to protect access to global variables
  78 *
  79 */
  80 static struct semaphore u132_module_lock;
  81 static int u132_exiting = 0;
  82 static int u132_instances = 0;
  83 static struct list_head u132_static_list;
  84 /*
  85 * end of the global variables protected by u132_module_lock
  86 */
  87 static struct workqueue_struct *workqueue;
  88 #define MAX_U132_PORTS 7
  89 #define MAX_U132_ADDRS 128
  90 #define MAX_U132_UDEVS 4
  91 #define MAX_U132_ENDPS 100
  92 #define MAX_U132_RINGS 4
  93 static const char *cc_to_text[16] = {
  94         "No Error ",
  95         "CRC Error ",
  96         "Bit Stuff ",
  97         "Data Togg ",
  98         "Stall ",
  99         "DevNotResp ",
 100         "PIDCheck ",
 101         "UnExpPID ",
 102         "DataOver ",
 103         "DataUnder ",
 104         "(for hw) ",
 105         "(for hw) ",
 106         "BufferOver ",
 107         "BuffUnder ",
 108         "(for HCD) ",
 109         "(for HCD) "
 110 };
 111 struct u132_port {
 112         struct u132 *u132;
 113         int reset;
 114         int enable;
 115         int power;
 116         int Status;
 117 };
 118 struct u132_addr {
 119         u8 address;
 120 };
 121 struct u132_udev {
 122         struct kref kref;
 123         struct usb_device *usb_device;
 124         u8 enumeration;
 125         u8 udev_number;
 126         u8 usb_addr;
 127         u8 portnumber;
 128         u8 endp_number_in[16];
 129         u8 endp_number_out[16];
 130 };
 131 #define ENDP_QUEUE_SHIFT 3
 132 #define ENDP_QUEUE_SIZE (1<<ENDP_QUEUE_SHIFT)
 133 #define ENDP_QUEUE_MASK (ENDP_QUEUE_SIZE-1)
 134 struct u132_urbq {
 135         struct list_head urb_more;
 136         struct urb *urb;
 137 };
 138 struct u132_spin {
 139         spinlock_t slock;
 140 };
 141 struct u132_endp {
 142         struct kref kref;
 143         u8 udev_number;
 144         u8 endp_number;
 145         u8 usb_addr;
 146         u8 usb_endp;
 147         struct u132 *u132;
 148         struct list_head endp_ring;
 149         struct u132_ring *ring;
 150         unsigned toggle_bits:2;
 151         unsigned active:1;
 152         unsigned delayed:1;
 153         unsigned input:1;
 154         unsigned output:1;
 155         unsigned pipetype:2;
 156         unsigned dequeueing:1;
 157         unsigned edset_flush:1;
 158         unsigned spare_bits:14;
 159         unsigned long jiffies;
 160         struct usb_host_endpoint *hep;
 161         struct u132_spin queue_lock;
 162         u16 queue_size;
 163         u16 queue_last;
 164         u16 queue_next;
 165         struct urb *urb_list[ENDP_QUEUE_SIZE];
 166         struct list_head urb_more;
 167         struct delayed_work scheduler;
 168 };
 169 struct u132_ring {
 170         unsigned in_use:1;
 171         unsigned length:7;
 172         u8 number;
 173         struct u132 *u132;
 174         struct u132_endp *curr_endp;
 175         struct delayed_work scheduler;
 176 };
 177 #define OHCI_QUIRK_AMD756 0x01
 178 #define OHCI_QUIRK_SUPERIO 0x02
 179 #define OHCI_QUIRK_INITRESET 0x04
 180 #define OHCI_BIG_ENDIAN 0x08
 181 #define OHCI_QUIRK_ZFMICRO 0x10
 182 struct u132 {
 183         struct kref kref;
 184         struct list_head u132_list;
 185         struct semaphore sw_lock;
 186         struct semaphore scheduler_lock;
 187         struct u132_platform_data *board;
 188         struct platform_device *platform_dev;
 189         struct u132_ring ring[MAX_U132_RINGS];
 190         int sequence_num;
 191         int going;
 192         int power;
 193         int reset;
 194         int num_ports;
 195         u32 hc_control;
 196         u32 hc_fminterval;
 197         u32 hc_roothub_status;
 198         u32 hc_roothub_a;
 199         u32 hc_roothub_portstatus[MAX_ROOT_PORTS];
 200         int flags;
 201         unsigned long next_statechange;
 202         struct delayed_work monitor;
 203         int num_endpoints;
 204         struct u132_addr addr[MAX_U132_ADDRS];
 205         struct u132_udev udev[MAX_U132_UDEVS];
 206         struct u132_port port[MAX_U132_PORTS];
 207         struct u132_endp *endp[MAX_U132_ENDPS];
 208 };
 209
 210 /*
 211 * these cannot be inlines because we need the structure offset!!
 212 * Does anyone have a better way?????
 213 */
 214 #define ftdi_read_pcimem(pdev, member, data) usb_ftdi_elan_read_pcimem(pdev, \
 215         offsetof(struct ohci_regs, member), 0, data);
 216 #define ftdi_write_pcimem(pdev, member, data) usb_ftdi_elan_write_pcimem(pdev, \
 217         offsetof(struct ohci_regs, member), 0, data);
 218 #define u132_read_pcimem(u132, member, data) \
 219         usb_ftdi_elan_read_pcimem(u132->platform_dev, offsetof(struct \
 220         ohci_regs, member), 0, data);
 221 #define u132_write_pcimem(u132, member, data) \
 222         usb_ftdi_elan_write_pcimem(u132->platform_dev, offsetof(struct \
 223         ohci_regs, member), 0, data);
 224 static inline struct u132 *udev_to_u132(struct u132_udev *udev)
 225 {
 226         u8 udev_number = udev->udev_number;
 227         return container_of(udev, struct u132, udev[udev_number]);
 228 }
 229
 230 static inline struct u132 *hcd_to_u132(struct usb_hcd *hcd)
 231 {
 232         return (struct u132 *)(hcd->hcd_priv);
 233 }
 234
 235 static inline struct usb_hcd *u132_to_hcd(struct u132 *u132)
 236 {
 237         return container_of((void *)u132, struct usb_hcd, hcd_priv);
 238 }
 239
 240 static inline void u132_disable(struct u132 *u132)
 241 {
 242         u132_to_hcd(u132)->state = HC_STATE_HALT;
 243 }
 244
 245
 246 #define kref_to_u132(d) container_of(d, struct u132, kref)
 247 #define kref_to_u132_endp(d) container_of(d, struct u132_endp, kref)
 248 #define kref_to_u132_udev(d) container_of(d, struct u132_udev, kref)
 249 #include "../misc/usb_u132.h"
 250 static const char hcd_name[] = "u132_hcd";
 251 #define PORT_C_MASK ((USB_PORT_STAT_C_CONNECTION | USB_PORT_STAT_C_ENABLE | \
 252         USB_PORT_STAT_C_SUSPEND | USB_PORT_STAT_C_OVERCURRENT | \
 253         USB_PORT_STAT_C_RESET) << 16)
 254 static void u132_hcd_delete(struct kref *kref)
 255 {
 256         struct u132 *u132 = kref_to_u132(kref);
 257         struct platform_device *pdev = u132->platform_dev;
 258         struct usb_hcd *hcd = u132_to_hcd(u132);
 259         u132->going += 1;
 260         down(&u132_module_lock);
 261         list_del_init(&u132->u132_list);
 262         u132_instances -= 1;
 263         up(&u132_module_lock);
 264         dev_warn(&u132->platform_dev->dev, "FREEING the hcd=%p and thus the u13"
 265                 "2=%p going=%d pdev=%p\n", hcd, u132, u132->going, pdev);
 266         usb_put_hcd(hcd);
 267 }
 268
 269 static inline void u132_u132_put_kref(struct u132 *u132)
 270 {
 271         kref_put(&u132->kref, u132_hcd_delete);
 272 }
 273
 274 static inline void u132_u132_init_kref(struct u132 *u132)
 275 {
 276         kref_init(&u132->kref);
 277 }
 278
 279 static void u132_udev_delete(struct kref *kref)
 280 {
 281         struct u132_udev *udev = kref_to_u132_udev(kref);
 282         udev->udev_number = 0;
 283         udev->usb_device = NULL;
 284         udev->usb_addr = 0;
 285         udev->enumeration = 0;
 286 }
 287
 288 static inline void u132_udev_put_kref(struct u132 *u132, struct u132_udev *udev)
 289 {
 290         kref_put(&udev->kref, u132_udev_delete);
 291 }
 292
 293 static inline void u132_udev_get_kref(struct u132 *u132, struct u132_udev *udev)
 294 {
 295         kref_get(&udev->kref);
 296 }
 297
 298 static inline void u132_udev_init_kref(struct u132 *u132,
 299         struct u132_udev *udev)
 300 {
 301         kref_init(&udev->kref);
 302 }
 303
 304 static inline void u132_ring_put_kref(struct u132 *u132, struct u132_ring *ring)
 305 {
 306         kref_put(&u132->kref, u132_hcd_delete);
 307 }
 308
 309 static void u132_ring_requeue_work(struct u132 *u132, struct u132_ring *ring,
 310         unsigned int delta)
 311 {
 312         if (delta > 0) {
 313                 if (queue_delayed_work(workqueue, &ring->scheduler, delta))
 314                         return;
 315         } else if (queue_delayed_work(workqueue, &ring->scheduler, 0))
 316                 return;
 317         kref_put(&u132->kref, u132_hcd_delete);
 318         return;
 319 }
 320
 321 static void u132_ring_queue_work(struct u132 *u132, struct u132_ring *ring,
 322         unsigned int delta)
 323 {
 324         kref_get(&u132->kref);
 325         u132_ring_requeue_work(u132, ring, delta);
 326         return;
 327 }
 328
 329 static void u132_ring_cancel_work(struct u132 *u132, struct u132_ring *ring)
 330 {
 331         if (cancel_delayed_work(&ring->scheduler)) {
 332                 kref_put(&u132->kref, u132_hcd_delete);
 333         }
 334 }
 335
 336 static void u132_endp_delete(struct kref *kref)
 337 {
 338         struct u132_endp *endp = kref_to_u132_endp(kref);
 339         struct u132 *u132 = endp->u132;
 340         u8 usb_addr = endp->usb_addr;
 341         u8 usb_endp = endp->usb_endp;
 342         u8 address = u132->addr[usb_addr].address;
 343         struct u132_udev *udev = &u132->udev[address];
 344         u8 endp_number = endp->endp_number;
 345         struct usb_host_endpoint *hep = endp->hep;
 346         struct u132_ring *ring = endp->ring;
 347         struct list_head *head = &endp->endp_ring;
 348         ring->length -= 1;
 349         if (endp == ring->curr_endp) {
 350                 if (list_empty(head)) {
 351                         ring->curr_endp = NULL;
 352                         list_del(head);
 353                 } else {
 354                         struct u132_endp *next_endp = list_entry(head->next,
 355                                 struct u132_endp, endp_ring);
 356                         ring->curr_endp = next_endp;
 357                         list_del(head);
 358         }} else
 359                 list_del(head);
 360         if (endp->input) {
 361                 udev->endp_number_in[usb_endp] = 0;
 362                 u132_udev_put_kref(u132, udev);
 363         }
 364         if (endp->output) {
 365                 udev->endp_number_out[usb_endp] = 0;
 366                 u132_udev_put_kref(u132, udev);
 367         }
 368         u132->endp[endp_number - 1] = NULL;
 369         hep->hcpriv = NULL;
 370         kfree(endp);
 371         u132_u132_put_kref(u132);
 372 }
 373
 374 static inline void u132_endp_put_kref(struct u132 *u132, struct u132_endp *endp)
 375 {
 376         kref_put(&endp->kref, u132_endp_delete);
 377 }
 378
 379 static inline void u132_endp_get_kref(struct u132 *u132, struct u132_endp *endp)
 380 {
 381         kref_get(&endp->kref);
 382 }
 383
 384 static inline void u132_endp_init_kref(struct u132 *u132,
 385         struct u132_endp *endp)
 386 {
 387         kref_init(&endp->kref);
 388         kref_get(&u132->kref);
 389 }
 390
 391 static void u132_endp_queue_work(struct u132 *u132, struct u132_endp *endp,
 392         unsigned int delta)
 393 {
 394         if (queue_delayed_work(workqueue, &endp->scheduler, delta))
 395                 kref_get(&endp->kref);
 396 }
 397
 398 static void u132_endp_cancel_work(struct u132 *u132, struct u132_endp *endp)
 399 {
 400         if (cancel_delayed_work(&endp->scheduler))
 401                 kref_put(&endp->kref, u132_endp_delete);
 402 }
 403
 404 static inline void u132_monitor_put_kref(struct u132 *u132)
 405 {
 406         kref_put(&u132->kref, u132_hcd_delete);
 407 }
 408
 409 static void u132_monitor_queue_work(struct u132 *u132, unsigned int delta)
 410 {
 411         if (queue_delayed_work(workqueue, &u132->monitor, delta))
 412                 kref_get(&u132->kref);
 413 }
 414
 415 static void u132_monitor_requeue_work(struct u132 *u132, unsigned int delta)
 416 {
 417         if (!queue_delayed_work(workqueue, &u132->monitor, delta))
 418                 kref_put(&u132->kref, u132_hcd_delete);
 419 }
 420
 421 static void u132_monitor_cancel_work(struct u132 *u132)
 422 {
 423         if (cancel_delayed_work(&u132->monitor))
 424                 kref_put(&u132->kref, u132_hcd_delete);
 425 }
 426
 427 static int read_roothub_info(struct u132 *u132)
 428 {
 429         u32 revision;
 430         int retval;
 431         retval = u132_read_pcimem(u132, revision, &revision);
 432         if (retval) {
 433                 dev_err(&u132->platform_dev->dev, "error %d accessing device co"
 434                         "ntrol\n", retval);
 435                 return retval;
 436         } else if ((revision & 0xFF) == 0x10) {
 437         } else if ((revision & 0xFF) == 0x11) {
 438         } else {
 439                 dev_err(&u132->platform_dev->dev, "device revision is not valid"
 440                         " %08X\n", revision);
 441                 return -ENODEV;
 442         }
 443         retval = u132_read_pcimem(u132, control, &u132->hc_control);
 444         if (retval) {
 445                 dev_err(&u132->platform_dev->dev, "error %d accessing device co"
 446                         "ntrol\n", retval);
 447                 return retval;
 448         }
 449         retval = u132_read_pcimem(u132, roothub.status,
 450                 &u132->hc_roothub_status);
 451         if (retval) {
 452                 dev_err(&u132->platform_dev->dev, "error %d accessing device re"
 453                         "g roothub.status\n", retval);
 454                 return retval;
 455         }
 456         retval = u132_read_pcimem(u132, roothub.a, &u132->hc_roothub_a);
 457         if (retval) {
 458                 dev_err(&u132->platform_dev->dev, "error %d accessing device re"
 459                         "g roothub.a\n", retval);
 460                 return retval;
 461         }
 462         {
 463                 int I = u132->num_ports;
 464                 int i = 0;
 465                 while (I-- > 0) {
 466                         retval = u132_read_pcimem(u132, roothub.portstatus[i],
 467                                 &u132->hc_roothub_portstatus[i]);
 468                         if (retval) {
 469                                 dev_err(&u132->platform_dev->dev, "error %d acc"
 470                                         "essing device roothub.portstatus[%d]\n"
 471                                         , retval, i);
 472                                 return retval;
 473                         } else
 474                                 i += 1;
 475                 }
 476         }
 477         return 0;
 478 }
 479
 480 static void u132_hcd_monitor_work(struct work_struct *work)
 481 {
 482         struct u132 *u132 = container_of(work, struct u132, monitor.work);
 483         if (u132->going > 1) {
 484                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
 485                         , u132->going);
 486                 u132_monitor_put_kref(u132);
 487                 return;
 488         } else if (u132->going > 0) {
 489                 dev_err(&u132->platform_dev->dev, "device is being removed\n");
 490                 u132_monitor_put_kref(u132);
 491                 return;
 492         } else {
 493                 int retval;
 494                 down(&u132->sw_lock);
 495                 retval = read_roothub_info(u132);
 496                 if (retval) {
 497                         struct usb_hcd *hcd = u132_to_hcd(u132);
 498                         u132_disable(u132);
 499                         u132->going = 1;
 500                         up(&u132->sw_lock);
 501                         usb_hc_died(hcd);
 502                         ftdi_elan_gone_away(u132->platform_dev);
 503                         u132_monitor_put_kref(u132);
 504                         return;
 505                 } else {
 506                         u132_monitor_requeue_work(u132, 500);
 507                         up(&u132->sw_lock);
 508                         return;
 509                 }
 510         }
 511 }
 512
 513 static void u132_hcd_giveback_urb(struct u132 *u132, struct u132_endp *endp,
 514         struct urb *urb, int status)
 515 {
 516         struct u132_ring *ring;
 517         unsigned long irqs;
 518         struct usb_hcd *hcd = u132_to_hcd(u132);
 519         urb->error_count = 0;
 520         urb->status = status;
 521         urb->hcpriv = NULL;
 522         spin_lock_irqsave(&endp->queue_lock.slock, irqs);
 523         endp->queue_next += 1;
 524         if (ENDP_QUEUE_SIZE > --endp->queue_size) {
 525                 endp->active = 0;
 526                 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
 527         } else {
 528                 struct list_head *next = endp->urb_more.next;
 529                 struct u132_urbq *urbq = list_entry(next, struct u132_urbq,
 530                         urb_more);
 531                 list_del(next);
 532                 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
 533                         urbq->urb;
 534                 endp->active = 0;
 535                 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
 536                 kfree(urbq);
 537         } down(&u132->scheduler_lock);
 538         ring = endp->ring;
 539         ring->in_use = 0;
 540         u132_ring_cancel_work(u132, ring);
 541         u132_ring_queue_work(u132, ring, 0);
 542         up(&u132->scheduler_lock);
 543         u132_endp_put_kref(u132, endp);
 544         usb_hcd_giveback_urb(hcd, urb);
 545         return;
 546 }
 547
 548 static void u132_hcd_forget_urb(struct u132 *u132, struct u132_endp *endp,
 549         struct urb *urb, int status)
 550 {
 551         u132_endp_put_kref(u132, endp);
 552 }
 553
 554 static void u132_hcd_abandon_urb(struct u132 *u132, struct u132_endp *endp,
 555         struct urb *urb, int status)
 556 {
 557         unsigned long irqs;
 558         struct usb_hcd *hcd = u132_to_hcd(u132);
 559         urb->error_count = 0;
 560         urb->status = status;
 561         urb->hcpriv = NULL;
 562         spin_lock_irqsave(&endp->queue_lock.slock, irqs);
 563         endp->queue_next += 1;
 564         if (ENDP_QUEUE_SIZE > --endp->queue_size) {
 565                 endp->active = 0;
 566                 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
 567         } else {
 568                 struct list_head *next = endp->urb_more.next;
 569                 struct u132_urbq *urbq = list_entry(next, struct u132_urbq,
 570                         urb_more);
 571                 list_del(next);
 572                 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
 573                         urbq->urb;
 574                 endp->active = 0;
 575                 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
 576                 kfree(urbq);
 577         } usb_hcd_giveback_urb(hcd, urb);
 578         return;
 579 }
 580
 581 static inline int edset_input(struct u132 *u132, struct u132_ring *ring,
 582         struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
 583         void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
 584         int toggle_bits, int error_count, int condition_code, int repeat_number,
 585          int halted, int skipped, int actual, int non_null))
 586 {
 587         return usb_ftdi_elan_edset_input(u132->platform_dev, ring->number, endp,
 588                  urb, address, endp->usb_endp, toggle_bits, callback);
 589 }
 590
 591 static inline int edset_setup(struct u132 *u132, struct u132_ring *ring,
 592         struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
 593         void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
 594         int toggle_bits, int error_count, int condition_code, int repeat_number,
 595          int halted, int skipped, int actual, int non_null))
 596 {
 597         return usb_ftdi_elan_edset_setup(u132->platform_dev, ring->number, endp,
 598                  urb, address, endp->usb_endp, toggle_bits, callback);
 599 }
 600
 601 static inline int edset_single(struct u132 *u132, struct u132_ring *ring,
 602         struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
 603         void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
 604         int toggle_bits, int error_count, int condition_code, int repeat_number,
 605          int halted, int skipped, int actual, int non_null))
 606 {
 607         return usb_ftdi_elan_edset_single(u132->platform_dev, ring->number,
 608                 endp, urb, address, endp->usb_endp, toggle_bits, callback);
 609 }
 610
 611 static inline int edset_output(struct u132 *u132, struct u132_ring *ring,
 612         struct u132_endp *endp, struct urb *urb, u8 address, u8 toggle_bits,
 613         void (*callback) (void *endp, struct urb *urb, u8 *buf, int len,
 614         int toggle_bits, int error_count, int condition_code, int repeat_number,
 615          int halted, int skipped, int actual, int non_null))
 616 {
 617         return usb_ftdi_elan_edset_output(u132->platform_dev, ring->number,
 618                 endp, urb, address, endp->usb_endp, toggle_bits, callback);
 619 }
 620
 621
 622 /*
 623 * must not LOCK sw_lock
 624 *
 625 */
 626 static void u132_hcd_interrupt_recv(void *data, struct urb *urb, u8 *buf,
 627         int len, int toggle_bits, int error_count, int condition_code,
 628         int repeat_number, int halted, int skipped, int actual, int non_null)
 629 {
 630         struct u132_endp *endp = data;
 631         struct u132 *u132 = endp->u132;
 632         u8 address = u132->addr[endp->usb_addr].address;
 633         struct u132_udev *udev = &u132->udev[address];
 634         down(&u132->scheduler_lock);
 635         if (u132->going > 1) {
 636                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
 637                         , u132->going);
 638                 up(&u132->scheduler_lock);
 639                 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
 640                 return;
 641         } else if (endp->dequeueing) {
 642                 endp->dequeueing = 0;
 643                 up(&u132->scheduler_lock);
 644                 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
 645                 return;
 646         } else if (u132->going > 0) {
 647                 dev_err(&u132->platform_dev->dev, "device is being removed urb="
 648                         "%p status=%d\n", urb, urb->status);
 649                 up(&u132->scheduler_lock);
 650                 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
 651                 return;
 652         } else if (urb->status == -EINPROGRESS) {
 653                 struct u132_ring *ring = endp->ring;
 654                 u8 *u = urb->transfer_buffer + urb->actual_length;
 655                 u8 *b = buf;
 656                 int L = len;
 657                 while (L-- > 0) {
 658                         *u++ = *b++;
 659                 }
 660                 urb->actual_length += len;
 661                 if ((condition_code == TD_CC_NOERROR) &&
 662                         (urb->transfer_buffer_length > urb->actual_length)) {
 663                         endp->toggle_bits = toggle_bits;
 664                         usb_settoggle(udev->usb_device, endp->usb_endp, 0,
 665                                 1 & toggle_bits);
 666                         if (urb->actual_length > 0) {
 667                                 int retval;
 668                                 up(&u132->scheduler_lock);
 669                                 retval = edset_single(u132, ring, endp, urb,
 670                                         address, endp->toggle_bits,
 671                                         u132_hcd_interrupt_recv);
 672                                 if (retval == 0) {
 673                                 } else
 674                                         u132_hcd_giveback_urb(u132, endp, urb,
 675                                                 retval);
 676                         } else {
 677                                 ring->in_use = 0;
 678                                 endp->active = 0;
 679                                 endp->jiffies = jiffies +
 680                                         msecs_to_jiffies(urb->interval);
 681                                 u132_ring_cancel_work(u132, ring);
 682                                 u132_ring_queue_work(u132, ring, 0);
 683                                 up(&u132->scheduler_lock);
 684                                 u132_endp_put_kref(u132, endp);
 685                         }
 686                         return;
 687                 } else if ((condition_code == TD_DATAUNDERRUN) &&
 688                         ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) {
 689                         endp->toggle_bits = toggle_bits;
 690                         usb_settoggle(udev->usb_device, endp->usb_endp, 0,
 691                                 1 & toggle_bits);
 692                         up(&u132->scheduler_lock);
 693                         u132_hcd_giveback_urb(u132, endp, urb, 0);
 694                         return;
 695                 } else {
 696                         if (condition_code == TD_CC_NOERROR) {
 697                                 endp->toggle_bits = toggle_bits;
 698                                 usb_settoggle(udev->usb_device, endp->usb_endp,
 699                                         0, 1 & toggle_bits);
 700                         } else if (condition_code == TD_CC_STALL) {
 701                                 endp->toggle_bits = 0x2;
 702                                 usb_settoggle(udev->usb_device, endp->usb_endp,
 703                                         0, 0);
 704                         } else {
 705                                 endp->toggle_bits = 0x2;
 706                                 usb_settoggle(udev->usb_device, endp->usb_endp,
 707                                         0, 0);
 708                                 dev_err(&u132->platform_dev->dev, "urb=%p givin"
 709                                         "g back INTERRUPT %s\n", urb,
 710                                         cc_to_text[condition_code]);
 711                         }
 712                         up(&u132->scheduler_lock);
 713                         u132_hcd_giveback_urb(u132, endp, urb,
 714                                 cc_to_error[condition_code]);
 715                         return;
 716                 }
 717         } else {
 718                 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
 719                         "s=%d\n", urb, urb->status);
 720                 up(&u132->scheduler_lock);
 721                 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
 722                 return;
 723         }
 724 }
 725
 726 static void u132_hcd_bulk_output_sent(void *data, struct urb *urb, u8 *buf,
 727         int len, int toggle_bits, int error_count, int condition_code,
 728         int repeat_number, int halted, int skipped, int actual, int non_null)
 729 {
 730         struct u132_endp *endp = data;
 731         struct u132 *u132 = endp->u132;
 732         u8 address = u132->addr[endp->usb_addr].address;
 733         down(&u132->scheduler_lock);
 734         if (u132->going > 1) {
 735                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
 736                         , u132->going);
 737                 up(&u132->scheduler_lock);
 738                 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
 739                 return;
 740         } else if (endp->dequeueing) {
 741                 endp->dequeueing = 0;
 742                 up(&u132->scheduler_lock);
 743                 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
 744                 return;
 745         } else if (u132->going > 0) {
 746                 dev_err(&u132->platform_dev->dev, "device is being removed urb="
 747                         "%p status=%d\n", urb, urb->status);
 748                 up(&u132->scheduler_lock);
 749                 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
 750                 return;
 751         } else if (urb->status == -EINPROGRESS) {
 752                 struct u132_ring *ring = endp->ring;
 753                 urb->actual_length += len;
 754                 endp->toggle_bits = toggle_bits;
 755                 if (urb->transfer_buffer_length > urb->actual_length) {
 756                         int retval;
 757                         up(&u132->scheduler_lock);
 758                         retval = edset_output(u132, ring, endp, urb, address,
 759                                 endp->toggle_bits, u132_hcd_bulk_output_sent);
 760                         if (retval == 0) {
 761                         } else
 762                                 u132_hcd_giveback_urb(u132, endp, urb, retval);
 763                         return;
 764                 } else {
 765                         up(&u132->scheduler_lock);
 766                         u132_hcd_giveback_urb(u132, endp, urb, 0);
 767                         return;
 768                 }
 769         } else {
 770                 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
 771                         "s=%d\n", urb, urb->status);
 772                 up(&u132->scheduler_lock);
 773                 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
 774                 return;
 775         }
 776 }
 777
 778 static void u132_hcd_bulk_input_recv(void *data, struct urb *urb, u8 *buf,
 779         int len, int toggle_bits, int error_count, int condition_code,
 780         int repeat_number, int halted, int skipped, int actual, int non_null)
 781 {
 782         struct u132_endp *endp = data;
 783         struct u132 *u132 = endp->u132;
 784         u8 address = u132->addr[endp->usb_addr].address;
 785         struct u132_udev *udev = &u132->udev[address];
 786         down(&u132->scheduler_lock);
 787         if (u132->going > 1) {
 788                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
 789                         , u132->going);
 790                 up(&u132->scheduler_lock);
 791                 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
 792                 return;
 793         } else if (endp->dequeueing) {
 794                 endp->dequeueing = 0;
 795                 up(&u132->scheduler_lock);
 796                 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
 797                 return;
 798         } else if (u132->going > 0) {
 799                 dev_err(&u132->platform_dev->dev, "device is being removed urb="
 800                         "%p status=%d\n", urb, urb->status);
 801                 up(&u132->scheduler_lock);
 802                 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
 803                 return;
 804         } else if (urb->status == -EINPROGRESS) {
 805                 struct u132_ring *ring = endp->ring;
 806                 u8 *u = urb->transfer_buffer + urb->actual_length;
 807                 u8 *b = buf;
 808                 int L = len;
 809                 while (L-- > 0) {
 810                         *u++ = *b++;
 811                 }
 812                 urb->actual_length += len;
 813                 if ((condition_code == TD_CC_NOERROR) &&
 814                         (urb->transfer_buffer_length > urb->actual_length)) {
 815                         int retval;
 816                         endp->toggle_bits = toggle_bits;
 817                         usb_settoggle(udev->usb_device, endp->usb_endp, 0,
 818                                 1 & toggle_bits);
 819                         up(&u132->scheduler_lock);
 820                         retval = usb_ftdi_elan_edset_input(u132->platform_dev,
 821                                 ring->number, endp, urb, address,
 822                                 endp->usb_endp, endp->toggle_bits,
 823                                 u132_hcd_bulk_input_recv);
 824                         if (retval == 0) {
 825                         } else
 826                                 u132_hcd_giveback_urb(u132, endp, urb, retval);
 827                         return;
 828                 } else if (condition_code == TD_CC_NOERROR) {
 829                         endp->toggle_bits = toggle_bits;
 830                         usb_settoggle(udev->usb_device, endp->usb_endp, 0,
 831                                 1 & toggle_bits);
 832                         up(&u132->scheduler_lock);
 833                         u132_hcd_giveback_urb(u132, endp, urb,
 834                                 cc_to_error[condition_code]);
 835                         return;
 836                 } else if ((condition_code == TD_DATAUNDERRUN) &&
 837                         ((urb->transfer_flags & URB_SHORT_NOT_OK) == 0)) {
 838                         endp->toggle_bits = toggle_bits;
 839                         usb_settoggle(udev->usb_device, endp->usb_endp, 0,
 840                                 1 & toggle_bits);
 841                         up(&u132->scheduler_lock);
 842                         u132_hcd_giveback_urb(u132, endp, urb, 0);
 843                         return;
 844                 } else if (condition_code == TD_DATAUNDERRUN) {
 845                         endp->toggle_bits = toggle_bits;
 846                         usb_settoggle(udev->usb_device, endp->usb_endp, 0,
 847                                 1 & toggle_bits);
 848                         dev_warn(&u132->platform_dev->dev, "urb=%p(SHORT NOT OK"
 849                                 ") giving back BULK IN %s\n", urb,
 850                                 cc_to_text[condition_code]);
 851                         up(&u132->scheduler_lock);
 852                         u132_hcd_giveback_urb(u132, endp, urb, 0);
 853                         return;
 854                 } else if (condition_code == TD_CC_STALL) {
 855                         endp->toggle_bits = 0x2;
 856                         usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0);
 857                         up(&u132->scheduler_lock);
 858                         u132_hcd_giveback_urb(u132, endp, urb,
 859                                 cc_to_error[condition_code]);
 860                         return;
 861                 } else {
 862                         endp->toggle_bits = 0x2;
 863                         usb_settoggle(udev->usb_device, endp->usb_endp, 0, 0);
 864                         dev_err(&u132->platform_dev->dev, "urb=%p giving back B"
 865                                 "ULK IN code=%d %s\n", urb, condition_code,
 866                                 cc_to_text[condition_code]);
 867                         up(&u132->scheduler_lock);
 868                         u132_hcd_giveback_urb(u132, endp, urb,
 869                                 cc_to_error[condition_code]);
 870                         return;
 871                 }
 872         } else {
 873                 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
 874                         "s=%d\n", urb, urb->status);
 875                 up(&u132->scheduler_lock);
 876                 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
 877                 return;
 878         }
 879 }
 880
 881 static void u132_hcd_configure_empty_sent(void *data, struct urb *urb, u8 *buf,
 882         int len, int toggle_bits, int error_count, int condition_code,
 883         int repeat_number, int halted, int skipped, int actual, int non_null)
 884 {
 885         struct u132_endp *endp = data;
 886         struct u132 *u132 = endp->u132;
 887         down(&u132->scheduler_lock);
 888         if (u132->going > 1) {
 889                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
 890                         , u132->going);
 891                 up(&u132->scheduler_lock);
 892                 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
 893                 return;
 894         } else if (endp->dequeueing) {
 895                 endp->dequeueing = 0;
 896                 up(&u132->scheduler_lock);
 897                 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
 898                 return;
 899         } else if (u132->going > 0) {
 900                 dev_err(&u132->platform_dev->dev, "device is being removed urb="
 901                         "%p status=%d\n", urb, urb->status);
 902                 up(&u132->scheduler_lock);
 903                 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
 904                 return;
 905         } else if (urb->status == -EINPROGRESS) {
 906                 up(&u132->scheduler_lock);
 907                 u132_hcd_giveback_urb(u132, endp, urb, 0);
 908                 return;
 909         } else {
 910                 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
 911                         "s=%d\n", urb, urb->status);
 912                 up(&u132->scheduler_lock);
 913                 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
 914                 return;
 915         }
 916 }
 917
 918 static void u132_hcd_configure_input_recv(void *data, struct urb *urb, u8 *buf,
 919         int len, int toggle_bits, int error_count, int condition_code,
 920         int repeat_number, int halted, int skipped, int actual, int non_null)
 921 {
 922         struct u132_endp *endp = data;
 923         struct u132 *u132 = endp->u132;
 924         u8 address = u132->addr[endp->usb_addr].address;
 925         down(&u132->scheduler_lock);
 926         if (u132->going > 1) {
 927                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
 928                         , u132->going);
 929                 up(&u132->scheduler_lock);
 930                 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
 931                 return;
 932         } else if (endp->dequeueing) {
 933                 endp->dequeueing = 0;
 934                 up(&u132->scheduler_lock);
 935                 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
 936                 return;
 937         } else if (u132->going > 0) {
 938                 dev_err(&u132->platform_dev->dev, "device is being removed urb="
 939                         "%p status=%d\n", urb, urb->status);
 940                 up(&u132->scheduler_lock);
 941                 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
 942                 return;
 943         } else if (urb->status == -EINPROGRESS) {
 944                 struct u132_ring *ring = endp->ring;
 945                 u8 *u = urb->transfer_buffer;
 946                 u8 *b = buf;
 947                 int L = len;
 948                 while (L-- > 0) {
 949                         *u++ = *b++;
 950                 }
 951                 urb->actual_length = len;
 952                 if ((condition_code == TD_CC_NOERROR) || ((condition_code ==
 953                         TD_DATAUNDERRUN) && ((urb->transfer_flags &
 954                         URB_SHORT_NOT_OK) == 0))) {
 955                         int retval;
 956                         up(&u132->scheduler_lock);
 957                         retval = usb_ftdi_elan_edset_empty(u132->platform_dev,
 958                                 ring->number, endp, urb, address,
 959                                 endp->usb_endp, 0x3,
 960                                 u132_hcd_configure_empty_sent);
 961                         if (retval == 0) {
 962                         } else
 963                                 u132_hcd_giveback_urb(u132, endp, urb, retval);
 964                         return;
 965                 } else if (condition_code == TD_CC_STALL) {
 966                         up(&u132->scheduler_lock);
 967                         dev_warn(&u132->platform_dev->dev, "giving back SETUP I"
 968                                 "NPUT STALL urb %p\n", urb);
 969                         u132_hcd_giveback_urb(u132, endp, urb,
 970                                 cc_to_error[condition_code]);
 971                         return;
 972                 } else {
 973                         up(&u132->scheduler_lock);
 974                         dev_err(&u132->platform_dev->dev, "giving back SETUP IN"
 975                                 "PUT %s urb %p\n", cc_to_text[condition_code],
 976                                 urb);
 977                         u132_hcd_giveback_urb(u132, endp, urb,
 978                                 cc_to_error[condition_code]);
 979                         return;
 980                 }
 981         } else {
 982                 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
 983                         "s=%d\n", urb, urb->status);
 984                 up(&u132->scheduler_lock);
 985                 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
 986                 return;
 987         }
 988 }
 989
 990 static void u132_hcd_configure_empty_recv(void *data, struct urb *urb, u8 *buf,
 991         int len, int toggle_bits, int error_count, int condition_code,
 992         int repeat_number, int halted, int skipped, int actual, int non_null)
 993 {
 994         struct u132_endp *endp = data;
 995         struct u132 *u132 = endp->u132;
 996         down(&u132->scheduler_lock);
 997         if (u132->going > 1) {
 998                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
 999                         , u132->going);
1000                 up(&u132->scheduler_lock);
1001                 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1002                 return;
1003         } else if (endp->dequeueing) {
1004                 endp->dequeueing = 0;
1005                 up(&u132->scheduler_lock);
1006                 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1007                 return;
1008         } else if (u132->going > 0) {
1009                 dev_err(&u132->platform_dev->dev, "device is being removed urb="
1010                         "%p status=%d\n", urb, urb->status);
1011                 up(&u132->scheduler_lock);
1012                 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1013                 return;
1014         } else if (urb->status == -EINPROGRESS) {
1015                 up(&u132->scheduler_lock);
1016                 u132_hcd_giveback_urb(u132, endp, urb, 0);
1017                 return;
1018         } else {
1019                 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
1020                         "s=%d\n", urb, urb->status);
1021                 up(&u132->scheduler_lock);
1022                 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
1023                 return;
1024         }
1025 }
1026
1027 static void u132_hcd_configure_setup_sent(void *data, struct urb *urb, u8 *buf,
1028         int len, int toggle_bits, int error_count, int condition_code,
1029         int repeat_number, int halted, int skipped, int actual, int non_null)
1030 {
1031         struct u132_endp *endp = data;
1032         struct u132 *u132 = endp->u132;
1033         u8 address = u132->addr[endp->usb_addr].address;
1034         down(&u132->scheduler_lock);
1035         if (u132->going > 1) {
1036                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1037                         , u132->going);
1038                 up(&u132->scheduler_lock);
1039                 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1040                 return;
1041         } else if (endp->dequeueing) {
1042                 endp->dequeueing = 0;
1043                 up(&u132->scheduler_lock);
1044                 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1045                 return;
1046         } else if (u132->going > 0) {
1047                 dev_err(&u132->platform_dev->dev, "device is being removed urb="
1048                         "%p status=%d\n", urb, urb->status);
1049                 up(&u132->scheduler_lock);
1050                 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1051                 return;
1052         } else if (urb->status == -EINPROGRESS) {
1053                 if (usb_pipein(urb->pipe)) {
1054                         int retval;
1055                         struct u132_ring *ring = endp->ring;
1056                         up(&u132->scheduler_lock);
1057                         retval = usb_ftdi_elan_edset_input(u132->platform_dev,
1058                                 ring->number, endp, urb, address,
1059                                 endp->usb_endp, 0,
1060                                 u132_hcd_configure_input_recv);
1061                         if (retval == 0) {
1062                         } else
1063                                 u132_hcd_giveback_urb(u132, endp, urb, retval);
1064                         return;
1065                 } else {
1066                         int retval;
1067                         struct u132_ring *ring = endp->ring;
1068                         up(&u132->scheduler_lock);
1069                         retval = usb_ftdi_elan_edset_input(u132->platform_dev,
1070                                 ring->number, endp, urb, address,
1071                                 endp->usb_endp, 0,
1072                                 u132_hcd_configure_empty_recv);
1073                         if (retval == 0) {
1074                         } else
1075                                 u132_hcd_giveback_urb(u132, endp, urb, retval);
1076                         return;
1077                 }
1078         } else {
1079                 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
1080                         "s=%d\n", urb, urb->status);
1081                 up(&u132->scheduler_lock);
1082                 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
1083                 return;
1084         }
1085 }
1086
1087 static void u132_hcd_enumeration_empty_recv(void *data, struct urb *urb,
1088         u8 *buf, int len, int toggle_bits, int error_count, int condition_code,
1089         int repeat_number, int halted, int skipped, int actual, int non_null)
1090 {
1091         struct u132_endp *endp = data;
1092         struct u132 *u132 = endp->u132;
1093         u8 address = u132->addr[endp->usb_addr].address;
1094         struct u132_udev *udev = &u132->udev[address];
1095         down(&u132->scheduler_lock);
1096         if (u132->going > 1) {
1097                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1098                         , u132->going);
1099                 up(&u132->scheduler_lock);
1100                 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1101                 return;
1102         } else if (endp->dequeueing) {
1103                 endp->dequeueing = 0;
1104                 up(&u132->scheduler_lock);
1105                 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1106                 return;
1107         } else if (u132->going > 0) {
1108                 dev_err(&u132->platform_dev->dev, "device is being removed urb="
1109                         "%p status=%d\n", urb, urb->status);
1110                 up(&u132->scheduler_lock);
1111                 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1112                 return;
1113         } else if (urb->status == -EINPROGRESS) {
1114                 u132->addr[0].address = 0;
1115                 endp->usb_addr = udev->usb_addr;
1116                 up(&u132->scheduler_lock);
1117                 u132_hcd_giveback_urb(u132, endp, urb, 0);
1118                 return;
1119         } else {
1120                 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
1121                         "s=%d\n", urb, urb->status);
1122                 up(&u132->scheduler_lock);
1123                 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
1124                 return;
1125         }
1126 }
1127
1128 static void u132_hcd_enumeration_address_sent(void *data, struct urb *urb,
1129         u8 *buf, int len, int toggle_bits, int error_count, int condition_code,
1130         int repeat_number, int halted, int skipped, int actual, int non_null)
1131 {
1132         struct u132_endp *endp = data;
1133         struct u132 *u132 = endp->u132;
1134         down(&u132->scheduler_lock);
1135         if (u132->going > 1) {
1136                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1137                         , u132->going);
1138                 up(&u132->scheduler_lock);
1139                 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1140                 return;
1141         } else if (endp->dequeueing) {
1142                 endp->dequeueing = 0;
1143                 up(&u132->scheduler_lock);
1144                 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1145                 return;
1146         } else if (u132->going > 0) {
1147                 dev_err(&u132->platform_dev->dev, "device is being removed urb="
1148                         "%p status=%d\n", urb, urb->status);
1149                 up(&u132->scheduler_lock);
1150                 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1151                 return;
1152         } else if (urb->status == -EINPROGRESS) {
1153                 int retval;
1154                 struct u132_ring *ring = endp->ring;
1155                 up(&u132->scheduler_lock);
1156                 retval = usb_ftdi_elan_edset_input(u132->platform_dev,
1157                         ring->number, endp, urb, 0, endp->usb_endp, 0,
1158                         u132_hcd_enumeration_empty_recv);
1159                 if (retval == 0) {
1160                 } else
1161                         u132_hcd_giveback_urb(u132, endp, urb, retval);
1162                 return;
1163         } else {
1164                 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
1165                         "s=%d\n", urb, urb->status);
1166                 up(&u132->scheduler_lock);
1167                 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
1168                 return;
1169         }
1170 }
1171
1172 static void u132_hcd_initial_empty_sent(void *data, struct urb *urb, u8 *buf,
1173         int len, int toggle_bits, int error_count, int condition_code,
1174         int repeat_number, int halted, int skipped, int actual, int non_null)
1175 {
1176         struct u132_endp *endp = data;
1177         struct u132 *u132 = endp->u132;
1178         down(&u132->scheduler_lock);
1179         if (u132->going > 1) {
1180                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1181                         , u132->going);
1182                 up(&u132->scheduler_lock);
1183                 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1184                 return;
1185         } else if (endp->dequeueing) {
1186                 endp->dequeueing = 0;
1187                 up(&u132->scheduler_lock);
1188                 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1189                 return;
1190         } else if (u132->going > 0) {
1191                 dev_err(&u132->platform_dev->dev, "device is being removed urb="
1192                         "%p status=%d\n", urb, urb->status);
1193                 up(&u132->scheduler_lock);
1194                 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1195                 return;
1196         } else if (urb->status == -EINPROGRESS) {
1197                 up(&u132->scheduler_lock);
1198                 u132_hcd_giveback_urb(u132, endp, urb, 0);
1199                 return;
1200         } else {
1201                 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
1202                         "s=%d\n", urb, urb->status);
1203                 up(&u132->scheduler_lock);
1204                 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
1205                 return;
1206         }
1207 }
1208
1209 static void u132_hcd_initial_input_recv(void *data, struct urb *urb, u8 *buf,
1210         int len, int toggle_bits, int error_count, int condition_code,
1211         int repeat_number, int halted, int skipped, int actual, int non_null)
1212 {
1213         struct u132_endp *endp = data;
1214         struct u132 *u132 = endp->u132;
1215         u8 address = u132->addr[endp->usb_addr].address;
1216         down(&u132->scheduler_lock);
1217         if (u132->going > 1) {
1218                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1219                         , u132->going);
1220                 up(&u132->scheduler_lock);
1221                 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1222                 return;
1223         } else if (endp->dequeueing) {
1224                 endp->dequeueing = 0;
1225                 up(&u132->scheduler_lock);
1226                 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1227                 return;
1228         } else if (u132->going > 0) {
1229                 dev_err(&u132->platform_dev->dev, "device is being removed urb="
1230                         "%p status=%d\n", urb, urb->status);
1231                 up(&u132->scheduler_lock);
1232                 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1233                 return;
1234         } else if (urb->status == -EINPROGRESS) {
1235                 int retval;
1236                 struct u132_ring *ring = endp->ring;
1237                 u8 *u = urb->transfer_buffer;
1238                 u8 *b = buf;
1239                 int L = len;
1240                 while (L-- > 0) {
1241                         *u++ = *b++;
1242                 }
1243                 urb->actual_length = len;
1244                 up(&u132->scheduler_lock);
1245                 retval = usb_ftdi_elan_edset_empty(u132->platform_dev,
1246                         ring->number, endp, urb, address, endp->usb_endp, 0x3,
1247                         u132_hcd_initial_empty_sent);
1248                 if (retval == 0) {
1249                 } else
1250                         u132_hcd_giveback_urb(u132, endp, urb, retval);
1251                 return;
1252         } else {
1253                 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
1254                         "s=%d\n", urb, urb->status);
1255                 up(&u132->scheduler_lock);
1256                 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
1257                 return;
1258         }
1259 }
1260
1261 static void u132_hcd_initial_setup_sent(void *data, struct urb *urb, u8 *buf,
1262         int len, int toggle_bits, int error_count, int condition_code,
1263         int repeat_number, int halted, int skipped, int actual, int non_null)
1264 {
1265         struct u132_endp *endp = data;
1266         struct u132 *u132 = endp->u132;
1267         u8 address = u132->addr[endp->usb_addr].address;
1268         down(&u132->scheduler_lock);
1269         if (u132->going > 1) {
1270                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1271                         , u132->going);
1272                 up(&u132->scheduler_lock);
1273                 u132_hcd_forget_urb(u132, endp, urb, -ENODEV);
1274                 return;
1275         } else if (endp->dequeueing) {
1276                 endp->dequeueing = 0;
1277                 up(&u132->scheduler_lock);
1278                 u132_hcd_giveback_urb(u132, endp, urb, -EINTR);
1279                 return;
1280         } else if (u132->going > 0) {
1281                 dev_err(&u132->platform_dev->dev, "device is being removed urb="
1282                         "%p status=%d\n", urb, urb->status);
1283                 up(&u132->scheduler_lock);
1284                 u132_hcd_giveback_urb(u132, endp, urb, -ENODEV);
1285                 return;
1286         } else if (urb->status == -EINPROGRESS) {
1287                 int retval;
1288                 struct u132_ring *ring = endp->ring;
1289                 up(&u132->scheduler_lock);
1290                 retval = usb_ftdi_elan_edset_input(u132->platform_dev,
1291                         ring->number, endp, urb, address, endp->usb_endp, 0,
1292                         u132_hcd_initial_input_recv);
1293                 if (retval == 0) {
1294                 } else
1295                         u132_hcd_giveback_urb(u132, endp, urb, retval);
1296                 return;
1297         } else {
1298                 dev_err(&u132->platform_dev->dev, "CALLBACK called urb=%p statu"
1299                         "s=%d\n", urb, urb->status);
1300                 up(&u132->scheduler_lock);
1301                 u132_hcd_giveback_urb(u132, endp, urb, urb->status);
1302                 return;
1303         }
1304 }
1305
1306 /*
1307 * this work function is only executed from the work queue
1308 *
1309 */
1310 static void u132_hcd_ring_work_scheduler(struct work_struct *work)
1311 {
1312         struct u132_ring *ring =
1313                 container_of(work, struct u132_ring, scheduler.work);
1314         struct u132 *u132 = ring->u132;
1315         down(&u132->scheduler_lock);
1316         if (ring->in_use) {
1317                 up(&u132->scheduler_lock);
1318                 u132_ring_put_kref(u132, ring);
1319                 return;
1320         } else if (ring->curr_endp) {
1321                 struct u132_endp *last_endp = ring->curr_endp;
1322                 struct list_head *scan;
1323                 struct list_head *head = &last_endp->endp_ring;
1324                 unsigned long wakeup = 0;
1325                 list_for_each(scan, head) {
1326                         struct u132_endp *endp = list_entry(scan,
1327                                 struct u132_endp, endp_ring);
1328                         if (endp->queue_next == endp->queue_last) {
1329                         } else if ((endp->delayed == 0)
1330                                 || time_after_eq(jiffies, endp->jiffies)) {
1331                                 ring->curr_endp = endp;
1332                                 u132_endp_cancel_work(u132, last_endp);
1333                                 u132_endp_queue_work(u132, last_endp, 0);
1334                                 up(&u132->scheduler_lock);
1335                                 u132_ring_put_kref(u132, ring);
1336                                 return;
1337                         } else {
1338                                 unsigned long delta = endp->jiffies - jiffies;
1339                                 if (delta > wakeup)
1340                                         wakeup = delta;
1341                         }
1342                 }
1343                 if (last_endp->queue_next == last_endp->queue_last) {
1344                 } else if ((last_endp->delayed == 0) || time_after_eq(jiffies,
1345                         last_endp->jiffies)) {
1346                         u132_endp_cancel_work(u132, last_endp);
1347                         u132_endp_queue_work(u132, last_endp, 0);
1348                         up(&u132->scheduler_lock);
1349                         u132_ring_put_kref(u132, ring);
1350                         return;
1351                 } else {
1352                         unsigned long delta = last_endp->jiffies - jiffies;
1353                         if (delta > wakeup)
1354                                 wakeup = delta;
1355                 }
1356                 if (wakeup > 0) {
1357                         u132_ring_requeue_work(u132, ring, wakeup);
1358                         up(&u132->scheduler_lock);
1359                         return;
1360                 } else {
1361                         up(&u132->scheduler_lock);
1362                         u132_ring_put_kref(u132, ring);
1363                         return;
1364                 }
1365         } else {
1366                 up(&u132->scheduler_lock);
1367                 u132_ring_put_kref(u132, ring);
1368                 return;
1369         }
1370 }
1371
1372 static void u132_hcd_endp_work_scheduler(struct work_struct *work)
1373 {
1374         struct u132_ring *ring;
1375         struct u132_endp *endp =
1376                 container_of(work, struct u132_endp, scheduler.work);
1377         struct u132 *u132 = endp->u132;
1378         down(&u132->scheduler_lock);
1379         ring = endp->ring;
1380         if (endp->edset_flush) {
1381                 endp->edset_flush = 0;
1382                 if (endp->dequeueing)
1383                         usb_ftdi_elan_edset_flush(u132->platform_dev,
1384                                 ring->number, endp);
1385                 up(&u132->scheduler_lock);
1386                 u132_endp_put_kref(u132, endp);
1387                 return;
1388         } else if (endp->active) {
1389                 up(&u132->scheduler_lock);
1390                 u132_endp_put_kref(u132, endp);
1391                 return;
1392         } else if (ring->in_use) {
1393                 up(&u132->scheduler_lock);
1394                 u132_endp_put_kref(u132, endp);
1395                 return;
1396         } else if (endp->queue_next == endp->queue_last) {
1397                 up(&u132->scheduler_lock);
1398                 u132_endp_put_kref(u132, endp);
1399                 return;
1400         } else if (endp->pipetype == PIPE_INTERRUPT) {
1401                 u8 address = u132->addr[endp->usb_addr].address;
1402                 if (ring->in_use) {
1403                         up(&u132->scheduler_lock);
1404                         u132_endp_put_kref(u132, endp);
1405                         return;
1406                 } else {
1407                         int retval;
1408                         struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1409                                 endp->queue_next];
1410                         endp->active = 1;
1411                         ring->curr_endp = endp;
1412                         ring->in_use = 1;
1413                         up(&u132->scheduler_lock);
1414                         retval = edset_single(u132, ring, endp, urb, address,
1415                                 endp->toggle_bits, u132_hcd_interrupt_recv);
1416                         if (retval == 0) {
1417                         } else
1418                                 u132_hcd_giveback_urb(u132, endp, urb, retval);
1419                         return;
1420                 }
1421         } else if (endp->pipetype == PIPE_CONTROL) {
1422                 u8 address = u132->addr[endp->usb_addr].address;
1423                 if (ring->in_use) {
1424                         up(&u132->scheduler_lock);
1425                         u132_endp_put_kref(u132, endp);
1426                         return;
1427                 } else if (address == 0) {
1428                         int retval;
1429                         struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1430                                 endp->queue_next];
1431                         endp->active = 1;
1432                         ring->curr_endp = endp;
1433                         ring->in_use = 1;
1434                         up(&u132->scheduler_lock);
1435                         retval = edset_setup(u132, ring, endp, urb, address,
1436                                 0x2, u132_hcd_initial_setup_sent);
1437                         if (retval == 0) {
1438                         } else
1439                                 u132_hcd_giveback_urb(u132, endp, urb, retval);
1440                         return;
1441                 } else if (endp->usb_addr == 0) {
1442                         int retval;
1443                         struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1444                                 endp->queue_next];
1445                         endp->active = 1;
1446                         ring->curr_endp = endp;
1447                         ring->in_use = 1;
1448                         up(&u132->scheduler_lock);
1449                         retval = edset_setup(u132, ring, endp, urb, 0, 0x2,
1450                                 u132_hcd_enumeration_address_sent);
1451                         if (retval == 0) {
1452                         } else
1453                                 u132_hcd_giveback_urb(u132, endp, urb, retval);
1454                         return;
1455                 } else {
1456                         int retval;
1457                         u8 address = u132->addr[endp->usb_addr].address;
1458                         struct urb *urb = endp->urb_list[ENDP_QUEUE_MASK &
1459                                 endp->queue_next];
1460                         endp->active = 1;
1461                         ring->curr_endp = endp;
1462                         ring->in_use = 1;
1463                         up(&u132->scheduler_lock);
1464                         retval = edset_setup(u132, ring, endp, urb, address,
1465                                 0x2, u132_hcd_configure_setup_sent);
1466                         if (retval == 0) {
1467                         } else
1468                                 u132_hcd_giveback_urb(u132, endp, urb, retval);
1469                         return;
1470                 }
1471         } else {
1472                 if (endp->input) {
1473                         u8 address = u132->addr[endp->usb_addr].address;
1474                         if (ring->in_use) {
1475                                 up(&u132->scheduler_lock);
1476                                 u132_endp_put_kref(u132, endp);
1477                                 return;
1478                         } else {
1479                                 int retval;
1480                                 struct urb *urb = endp->urb_list[
1481                                         ENDP_QUEUE_MASK & endp->queue_next];
1482                                 endp->active = 1;
1483                                 ring->curr_endp = endp;
1484                                 ring->in_use = 1;
1485                                 up(&u132->scheduler_lock);
1486                                 retval = edset_input(u132, ring, endp, urb,
1487                                         address, endp->toggle_bits,
1488                                         u132_hcd_bulk_input_recv);
1489                                 if (retval == 0) {
1490                                 } else
1491                                         u132_hcd_giveback_urb(u132, endp, urb,
1492                                                 retval);
1493                                 return;
1494                         }
1495                 } else {        /* output pipe */
1496                         u8 address = u132->addr[endp->usb_addr].address;
1497                         if (ring->in_use) {
1498                                 up(&u132->scheduler_lock);
1499                                 u132_endp_put_kref(u132, endp);
1500                                 return;
1501                         } else {
1502                                 int retval;
1503                                 struct urb *urb = endp->urb_list[
1504                                         ENDP_QUEUE_MASK & endp->queue_next];
1505                                 endp->active = 1;
1506                                 ring->curr_endp = endp;
1507                                 ring->in_use = 1;
1508                                 up(&u132->scheduler_lock);
1509                                 retval = edset_output(u132, ring, endp, urb,
1510                                         address, endp->toggle_bits,
1511                                         u132_hcd_bulk_output_sent);
1512                                 if (retval == 0) {
1513                                 } else
1514                                         u132_hcd_giveback_urb(u132, endp, urb,
1515                                                 retval);
1516                                 return;
1517                         }
1518                 }
1519         }
1520 }
1521
1522 static void port_power(struct u132 *u132, int pn, int is_on)
1523 {
1524         u132->port[pn].power = is_on;
1525 }
1526
1527 static void u132_power(struct u132 *u132, int is_on)
1528 {
1529         struct usb_hcd *hcd = u132_to_hcd(u132)
1530                 ;        /* hub is inactive unless the port is powered */
1531         if (is_on) {
1532                 if (u132->power)
1533                         return;
1534                 u132->power = 1;
1535                 hcd->self.controller->power.power_state = PMSG_ON;
1536         } else {
1537                 u132->power = 0;
1538                 hcd->state = HC_STATE_HALT;
1539                 hcd->self.controller->power.power_state = PMSG_SUSPEND;
1540         }
1541 }
1542
1543 static int u132_periodic_reinit(struct u132 *u132)
1544 {
1545         int retval;
1546         u32 fi = u132->hc_fminterval & 0x03fff;
1547         u32 fit;
1548         u32 fminterval;
1549         retval = u132_read_pcimem(u132, fminterval, &fminterval);
1550         if (retval)
1551                 return retval;
1552         fit = fminterval & FIT;
1553         retval = u132_write_pcimem(u132, fminterval,
1554                 (fit ^ FIT) | u132->hc_fminterval);
1555         if (retval)
1556                 return retval;
1557         retval = u132_write_pcimem(u132, periodicstart,
1558                 ((9 *fi) / 10) & 0x3fff);
1559         if (retval)
1560                 return retval;
1561         return 0;
1562 }
1563
1564 static char *hcfs2string(int state)
1565 {
1566         switch (state) {
1567         case OHCI_USB_RESET:
1568                 return "reset";
1569         case OHCI_USB_RESUME:
1570                 return "resume";
1571         case OHCI_USB_OPER:
1572                 return "operational";
1573         case OHCI_USB_SUSPEND:
1574                 return "suspend";
1575         }
1576         return "?";
1577 }
1578
1579 static int u132_init(struct u132 *u132)
1580 {
1581         int retval;
1582         u32 control;
1583         u132_disable(u132);
1584         u132->next_statechange = jiffies;
1585         retval = u132_write_pcimem(u132, intrdisable, OHCI_INTR_MIE);
1586         if (retval)
1587                 return retval;
1588         retval = u132_read_pcimem(u132, control, &control);
1589         if (retval)
1590                 return retval;
1591         if (u132->num_ports == 0) {
1592                 u32 rh_a = -1;
1593                 retval = u132_read_pcimem(u132, roothub.a, &rh_a);
1594                 if (retval)
1595                         return retval;
1596                 u132->num_ports = rh_a & RH_A_NDP;
1597                 retval = read_roothub_info(u132);
1598                 if (retval)
1599                         return retval;
1600         }
1601         if (u132->num_ports > MAX_U132_PORTS) {
1602                 return -EINVAL;
1603         }
1604         return 0;
1605 }
1606
1607
1608 /* Start an OHCI controller, set the BUS operational
1609 * resets USB and controller
1610 * enable interrupts
1611 */
1612 static int u132_run(struct u132 *u132)
1613 {
1614         int retval;
1615         u32 control;
1616         u32 status;
1617         u32 fminterval;
1618         u32 periodicstart;
1619         u32 cmdstatus;
1620         u32 roothub_a;
1621         int mask = OHCI_INTR_INIT;
1622         int first = u132->hc_fminterval == 0;
1623         int sleep_time = 0;
1624         int reset_timeout = 30;        /* ... allow extra time */
1625         u132_disable(u132);
1626         if (first) {
1627                 u32 temp;
1628                 retval = u132_read_pcimem(u132, fminterval, &temp);
1629                 if (retval)
1630                         return retval;
1631                 u132->hc_fminterval = temp & 0x3fff;
1632                 if (u132->hc_fminterval != FI) {
1633                 }
1634                 u132->hc_fminterval |= FSMP(u132->hc_fminterval) << 16;
1635         }
1636         retval = u132_read_pcimem(u132, control, &u132->hc_control);
1637         if (retval)
1638                 return retval;
1639         dev_info(&u132->platform_dev->dev, "resetting from state '%s', control "
1640                 "= %08X\n", hcfs2string(u132->hc_control & OHCI_CTRL_HCFS),
1641                 u132->hc_control);
1642         switch (u132->hc_control & OHCI_CTRL_HCFS) {
1643         case OHCI_USB_OPER:
1644                 sleep_time = 0;
1645                 break;
1646         case OHCI_USB_SUSPEND:
1647         case OHCI_USB_RESUME:
1648                 u132->hc_control &= OHCI_CTRL_RWC;
1649                 u132->hc_control |= OHCI_USB_RESUME;
1650                 sleep_time = 10;
1651                 break;
1652         default:
1653                 u132->hc_control &= OHCI_CTRL_RWC;
1654                 u132->hc_control |= OHCI_USB_RESET;
1655                 sleep_time = 50;
1656                 break;
1657         }
1658         retval = u132_write_pcimem(u132, control, u132->hc_control);
1659         if (retval)
1660                 return retval;
1661         retval = u132_read_pcimem(u132, control, &control);
1662         if (retval)
1663                 return retval;
1664         msleep(sleep_time);
1665         retval = u132_read_pcimem(u132, roothub.a, &roothub_a);
1666         if (retval)
1667                 return retval;
1668         if (!(roothub_a & RH_A_NPS)) {
1669                 int temp;        /* power down each port */
1670                 for (temp = 0; temp < u132->num_ports; temp++) {
1671                         retval = u132_write_pcimem(u132,
1672                                 roothub.portstatus[temp], RH_PS_LSDA);
1673                         if (retval)
1674                                 return retval;
1675                 }
1676         }
1677         retval = u132_read_pcimem(u132, control, &control);
1678         if (retval)
1679                 return retval;
1680       retry:retval = u132_read_pcimem(u132, cmdstatus, &status);
1681         if (retval)
1682                 return retval;
1683         retval = u132_write_pcimem(u132, cmdstatus, OHCI_HCR);
1684         if (retval)
1685                 return retval;
1686       extra:{
1687                 retval = u132_read_pcimem(u132, cmdstatus, &status);
1688                 if (retval)
1689                         return retval;
1690                 if (0 != (status & OHCI_HCR)) {
1691                         if (--reset_timeout == 0) {
1692                                 dev_err(&u132->platform_dev->dev, "USB HC reset"
1693                                         " timed out!\n");
1694                                 return -ENODEV;
1695                         } else {
1696                                 msleep(5);
1697                                 goto extra;
1698                         }
1699                 }
1700         }
1701         if (u132->flags & OHCI_QUIRK_INITRESET) {
1702                 retval = u132_write_pcimem(u132, control, u132->hc_control);
1703                 if (retval)
1704                         return retval;
1705                 retval = u132_read_pcimem(u132, control, &control);
1706                 if (retval)
1707                         return retval;
1708         }
1709         retval = u132_write_pcimem(u132, ed_controlhead, 0x00000000);
1710         if (retval)
1711                 return retval;
1712         retval = u132_write_pcimem(u132, ed_bulkhead, 0x11000000);
1713         if (retval)
1714                 return retval;
1715         retval = u132_write_pcimem(u132, hcca, 0x00000000);
1716         if (retval)
1717                 return retval;
1718         retval = u132_periodic_reinit(u132);
1719         if (retval)
1720                 return retval;
1721         retval = u132_read_pcimem(u132, fminterval, &fminterval);
1722         if (retval)
1723                 return retval;
1724         retval = u132_read_pcimem(u132, periodicstart, &periodicstart);
1725         if (retval)
1726                 return retval;
1727         if (0 == (fminterval & 0x3fff0000) || 0 == periodicstart) {
1728                 if (!(u132->flags & OHCI_QUIRK_INITRESET)) {
1729                         u132->flags |= OHCI_QUIRK_INITRESET;
1730                         goto retry;
1731                 } else
1732                         dev_err(&u132->platform_dev->dev, "init err(%08x %04x)"
1733                                 "\n", fminterval, periodicstart);
1734         }                        /* start controller operations */
1735         u132->hc_control &= OHCI_CTRL_RWC;
1736         u132->hc_control |= OHCI_CONTROL_INIT | OHCI_CTRL_BLE | OHCI_USB_OPER;
1737         retval = u132_write_pcimem(u132, control, u132->hc_control);
1738         if (retval)
1739                 return retval;
1740         retval = u132_write_pcimem(u132, cmdstatus, OHCI_BLF);
1741         if (retval)
1742                 return retval;
1743         retval = u132_read_pcimem(u132, cmdstatus, &cmdstatus);
1744         if (retval)
1745                 return retval;
1746         retval = u132_read_pcimem(u132, control, &control);
1747         if (retval)
1748                 return retval;
1749         u132_to_hcd(u132)->state = HC_STATE_RUNNING;
1750         retval = u132_write_pcimem(u132, roothub.status, RH_HS_DRWE);
1751         if (retval)
1752                 return retval;
1753         retval = u132_write_pcimem(u132, intrstatus, mask);
1754         if (retval)
1755                 return retval;
1756         retval = u132_write_pcimem(u132, intrdisable,
1757                 OHCI_INTR_MIE | OHCI_INTR_OC | OHCI_INTR_RHSC | OHCI_INTR_FNO |
1758                 OHCI_INTR_UE | OHCI_INTR_RD | OHCI_INTR_SF | OHCI_INTR_WDH |
1759                 OHCI_INTR_SO);
1760         if (retval)
1761                 return retval;        /* handle root hub init quirks ... */
1762         retval = u132_read_pcimem(u132, roothub.a, &roothub_a);
1763         if (retval)
1764                 return retval;
1765         roothub_a &= ~(RH_A_PSM | RH_A_OCPM);
1766         if (u132->flags & OHCI_QUIRK_SUPERIO) {
1767                 roothub_a |= RH_A_NOCP;
1768                 roothub_a &= ~(RH_A_POTPGT | RH_A_NPS);
1769                 retval = u132_write_pcimem(u132, roothub.a, roothub_a);
1770                 if (retval)
1771                         return retval;
1772         } else if ((u132->flags & OHCI_QUIRK_AMD756) || distrust_firmware) {
1773                 roothub_a |= RH_A_NPS;
1774                 retval = u132_write_pcimem(u132, roothub.a, roothub_a);
1775                 if (retval)
1776                         return retval;
1777         }
1778         retval = u132_write_pcimem(u132, roothub.status, RH_HS_LPSC);
1779         if (retval)
1780                 return retval;
1781         retval = u132_write_pcimem(u132, roothub.b,
1782                 (roothub_a & RH_A_NPS) ? 0 : RH_B_PPCM);
1783         if (retval)
1784                 return retval;
1785         retval = u132_read_pcimem(u132, control, &control);
1786         if (retval)
1787                 return retval;
1788         mdelay((roothub_a >> 23) & 0x1fe);
1789         u132_to_hcd(u132)->state = HC_STATE_RUNNING;
1790         return 0;
1791 }
1792
1793 static void u132_hcd_stop(struct usb_hcd *hcd)
1794 {
1795         struct u132 *u132 = hcd_to_u132(hcd);
1796         if (u132->going > 1) {
1797                 dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p) has b"
1798                         "een removed %d\n", u132, hcd, u132->going);
1799         } else if (u132->going > 0) {
1800                 dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov"
1801                         "ed\n", hcd);
1802         } else {
1803                 down(&u132->sw_lock);
1804                 msleep(100);
1805                 u132_power(u132, 0);
1806                 up(&u132->sw_lock);
1807         }
1808 }
1809
1810 static int u132_hcd_start(struct usb_hcd *hcd)
1811 {
1812         struct u132 *u132 = hcd_to_u132(hcd);
1813         if (u132->going > 1) {
1814                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1815                         , u132->going);
1816                 return -ENODEV;
1817         } else if (u132->going > 0) {
1818                 dev_err(&u132->platform_dev->dev, "device is being removed\n");
1819                 return -ESHUTDOWN;
1820         } else if (hcd->self.controller) {
1821                 int retval;
1822                 struct platform_device *pdev =
1823                         to_platform_device(hcd->self.controller);
1824                 u16 vendor = ((struct u132_platform_data *)
1825                         (pdev->dev.platform_data))->vendor;
1826                 u16 device = ((struct u132_platform_data *)
1827                         (pdev->dev.platform_data))->device;
1828                 down(&u132->sw_lock);
1829                 msleep(10);
1830                 if (vendor == PCI_VENDOR_ID_AMD && device == 0x740c) {
1831                         u132->flags = OHCI_QUIRK_AMD756;
1832                 } else if (vendor == PCI_VENDOR_ID_OPTI && device == 0xc861) {
1833                         dev_err(&u132->platform_dev->dev, "WARNING: OPTi workar"
1834                                 "ounds unavailable\n");
1835                 } else if (vendor == PCI_VENDOR_ID_COMPAQ && device == 0xa0f8)
1836                         u132->flags |= OHCI_QUIRK_ZFMICRO;
1837                 retval = u132_run(u132);
1838                 if (retval) {
1839                         u132_disable(u132);
1840                         u132->going = 1;
1841                 }
1842                 msleep(100);
1843                 up(&u132->sw_lock);
1844                 return retval;
1845         } else {
1846                 dev_err(&u132->platform_dev->dev, "platform_device missing\n");
1847                 return -ENODEV;
1848         }
1849 }
1850
1851 static int u132_hcd_reset(struct usb_hcd *hcd)
1852 {
1853         struct u132 *u132 = hcd_to_u132(hcd);
1854         if (u132->going > 1) {
1855                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
1856                         , u132->going);
1857                 return -ENODEV;
1858         } else if (u132->going > 0) {
1859                 dev_err(&u132->platform_dev->dev, "device is being removed\n");
1860                 return -ESHUTDOWN;
1861         } else {
1862                 int retval;
1863                 down(&u132->sw_lock);
1864                 retval = u132_init(u132);
1865                 if (retval) {
1866                         u132_disable(u132);
1867                         u132->going = 1;
1868                 }
1869                 up(&u132->sw_lock);
1870                 return retval;
1871         }
1872 }
1873
1874 static int create_endpoint_and_queue_int(struct u132 *u132,
1875         struct u132_udev *udev, struct usb_host_endpoint *hep, struct urb *urb,
1876         struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address,
1877         gfp_t mem_flags)
1878 {
1879         struct u132_ring *ring;
1880         unsigned long irqs;
1881         u8 endp_number = ++u132->num_endpoints;
1882         struct u132_endp *endp = hep->hcpriv = u132->endp[endp_number - 1] =
1883                 kmalloc(sizeof(struct u132_endp), mem_flags);
1884         if (!endp) {
1885                 return -ENOMEM;
1886         }
1887         INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
1888         spin_lock_init(&endp->queue_lock.slock);
1889         INIT_LIST_HEAD(&endp->urb_more);
1890         ring = endp->ring = &u132->ring[0];
1891         if (ring->curr_endp) {
1892                 list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
1893         } else {
1894                 INIT_LIST_HEAD(&endp->endp_ring);
1895                 ring->curr_endp = endp;
1896         }
1897         ring->length += 1;
1898         endp->dequeueing = 0;
1899         endp->edset_flush = 0;
1900         endp->active = 0;
1901         endp->delayed = 0;
1902         endp->endp_number = endp_number;
1903         endp->u132 = u132;
1904         endp->hep = hep;
1905         endp->pipetype = usb_pipetype(urb->pipe);
1906         u132_endp_init_kref(u132, endp);
1907         if (usb_pipein(urb->pipe)) {
1908                 endp->toggle_bits = 0x2;
1909                 usb_settoggle(udev->usb_device, usb_endp, 0, 0);
1910                 endp->input = 1;
1911                 endp->output = 0;
1912                 udev->endp_number_in[usb_endp] = endp_number;
1913                 u132_udev_get_kref(u132, udev);
1914         } else {
1915                 endp->toggle_bits = 0x2;
1916                 usb_settoggle(udev->usb_device, usb_endp, 1, 0);
1917                 endp->input = 0;
1918                 endp->output = 1;
1919                 udev->endp_number_out[usb_endp] = endp_number;
1920                 u132_udev_get_kref(u132, udev);
1921         }
1922         urb->hcpriv = u132;
1923         spin_lock_irqsave(&endp->queue_lock.slock, irqs);
1924         endp->delayed = 1;
1925         endp->jiffies = jiffies + msecs_to_jiffies(urb->interval);
1926         endp->udev_number = address;
1927         endp->usb_addr = usb_addr;
1928         endp->usb_endp = usb_endp;
1929         endp->queue_size = 1;
1930         endp->queue_last = 0;
1931         endp->queue_next = 0;
1932         endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
1933         spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
1934         u132_endp_queue_work(u132, endp, msecs_to_jiffies(urb->interval));
1935         return 0;
1936 }
1937
1938 static int queue_int_on_old_endpoint(struct u132 *u132, struct u132_udev *udev,
1939         struct usb_host_endpoint *hep, struct urb *urb,
1940         struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
1941         u8 usb_endp, u8 address)
1942 {
1943         urb->hcpriv = u132;
1944         endp->delayed = 1;
1945         endp->jiffies = jiffies + msecs_to_jiffies(urb->interval);
1946         if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
1947                 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
1948         } else {
1949                 struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq),
1950                         GFP_ATOMIC);
1951                 if (urbq == NULL) {
1952                         endp->queue_size -= 1;
1953                         return -ENOMEM;
1954                 } else {
1955                         list_add_tail(&urbq->urb_more, &endp->urb_more);
1956                         urbq->urb = urb;
1957                 }
1958         }
1959         return 0;
1960 }
1961
1962 static int create_endpoint_and_queue_bulk(struct u132 *u132,
1963         struct u132_udev *udev, struct usb_host_endpoint *hep, struct urb *urb,
1964         struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp, u8 address,
1965         gfp_t mem_flags)
1966 {
1967         int ring_number;
1968         struct u132_ring *ring;
1969         unsigned long irqs;
1970         u8 endp_number = ++u132->num_endpoints;
1971         struct u132_endp *endp = hep->hcpriv = u132->endp[endp_number - 1] =
1972                 kmalloc(sizeof(struct u132_endp), mem_flags);
1973         if (!endp) {
1974                 return -ENOMEM;
1975         }
1976         INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
1977         spin_lock_init(&endp->queue_lock.slock);
1978         INIT_LIST_HEAD(&endp->urb_more);
1979         endp->dequeueing = 0;
1980         endp->edset_flush = 0;
1981         endp->active = 0;
1982         endp->delayed = 0;
1983         endp->endp_number = endp_number;
1984         endp->u132 = u132;
1985         endp->hep = hep;
1986         endp->pipetype = usb_pipetype(urb->pipe);
1987         u132_endp_init_kref(u132, endp);
1988         if (usb_pipein(urb->pipe)) {
1989                 endp->toggle_bits = 0x2;
1990                 usb_settoggle(udev->usb_device, usb_endp, 0, 0);
1991                 ring_number = 3;
1992                 endp->input = 1;
1993                 endp->output = 0;
1994                 udev->endp_number_in[usb_endp] = endp_number;
1995                 u132_udev_get_kref(u132, udev);
1996         } else {
1997                 endp->toggle_bits = 0x2;
1998                 usb_settoggle(udev->usb_device, usb_endp, 1, 0);
1999                 ring_number = 2;
2000                 endp->input = 0;
2001                 endp->output = 1;
2002                 udev->endp_number_out[usb_endp] = endp_number;
2003                 u132_udev_get_kref(u132, udev);
2004         }
2005         ring = endp->ring = &u132->ring[ring_number - 1];
2006         if (ring->curr_endp) {
2007                 list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
2008         } else {
2009                 INIT_LIST_HEAD(&endp->endp_ring);
2010                 ring->curr_endp = endp;
2011         }
2012         ring->length += 1;
2013         urb->hcpriv = u132;
2014         spin_lock_irqsave(&endp->queue_lock.slock, irqs);
2015         endp->udev_number = address;
2016         endp->usb_addr = usb_addr;
2017         endp->usb_endp = usb_endp;
2018         endp->queue_size = 1;
2019         endp->queue_last = 0;
2020         endp->queue_next = 0;
2021         endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2022         spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2023         u132_endp_queue_work(u132, endp, 0);
2024         return 0;
2025 }
2026
2027 static int queue_bulk_on_old_endpoint(struct u132 *u132, struct u132_udev *udev,
2028          struct usb_host_endpoint *hep, struct urb *urb,
2029         struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
2030         u8 usb_endp, u8 address)
2031 {
2032         urb->hcpriv = u132;
2033         if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2034                 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2035         } else {
2036                 struct u132_urbq *urbq = kmalloc(sizeof(struct u132_urbq),
2037                         GFP_ATOMIC);
2038                 if (urbq == NULL) {
2039                         endp->queue_size -= 1;
2040                         return -ENOMEM;
2041                 } else {
2042                         list_add_tail(&urbq->urb_more, &endp->urb_more);
2043                         urbq->urb = urb;
2044                 }
2045         }
2046         return 0;
2047 }
2048
2049 static int create_endpoint_and_queue_control(struct u132 *u132,
2050         struct usb_host_endpoint *hep, struct urb *urb,
2051         struct usb_device *usb_dev, u8 usb_addr, u8 usb_endp,
2052         gfp_t mem_flags)
2053 {
2054         struct u132_ring *ring;
2055         u8 endp_number = ++u132->num_endpoints;
2056         struct u132_endp *endp = hep->hcpriv = u132->endp[endp_number - 1] =
2057                 kmalloc(sizeof(struct u132_endp), mem_flags);
2058         if (!endp) {
2059                 return -ENOMEM;
2060         }
2061         INIT_DELAYED_WORK(&endp->scheduler, u132_hcd_endp_work_scheduler);
2062         spin_lock_init(&endp->queue_lock.slock);
2063         INIT_LIST_HEAD(&endp->urb_more);
2064         ring = endp->ring = &u132->ring[0];
2065         if (ring->curr_endp) {
2066                 list_add_tail(&endp->endp_ring, &ring->curr_endp->endp_ring);
2067         } else {
2068                 INIT_LIST_HEAD(&endp->endp_ring);
2069                 ring->curr_endp = endp;
2070         }
2071         ring->length += 1;
2072         endp->dequeueing = 0;
2073         endp->edset_flush = 0;
2074         endp->active = 0;
2075         endp->delayed = 0;
2076         endp->endp_number = endp_number;
2077         endp->u132 = u132;
2078         endp->hep = hep;
2079         u132_endp_init_kref(u132, endp);
2080         u132_endp_get_kref(u132, endp);
2081         if (usb_addr == 0) {
2082                 unsigned long irqs;
2083                 u8 address = u132->addr[usb_addr].address;
2084                 struct u132_udev *udev = &u132->udev[address];
2085                 endp->udev_number = address;
2086                 endp->usb_addr = usb_addr;
2087                 endp->usb_endp = usb_endp;
2088                 endp->input = 1;
2089                 endp->output = 1;
2090                 endp->pipetype = usb_pipetype(urb->pipe);
2091                 u132_udev_init_kref(u132, udev);
2092                 u132_udev_get_kref(u132, udev);
2093                 udev->endp_number_in[usb_endp] = endp_number;
2094                 udev->endp_number_out[usb_endp] = endp_number;
2095                 urb->hcpriv = u132;
2096                 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
2097                 endp->queue_size = 1;
2098                 endp->queue_last = 0;
2099                 endp->queue_next = 0;
2100                 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2101                 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2102                 u132_endp_queue_work(u132, endp, 0);
2103                 return 0;
2104         } else {                /*(usb_addr > 0) */
2105                 unsigned long irqs;
2106                 u8 address = u132->addr[usb_addr].address;
2107                 struct u132_udev *udev = &u132->udev[address];
2108                 endp->udev_number = address;
2109                 endp->usb_addr = usb_addr;
2110                 endp->usb_endp = usb_endp;
2111                 endp->input = 1;
2112                 endp->output = 1;
2113                 endp->pipetype = usb_pipetype(urb->pipe);
2114                 u132_udev_get_kref(u132, udev);
2115                 udev->enumeration = 2;
2116                 udev->endp_number_in[usb_endp] = endp_number;
2117                 udev->endp_number_out[usb_endp] = endp_number;
2118                 urb->hcpriv = u132;
2119                 spin_lock_irqsave(&endp->queue_lock.slock, irqs);
2120                 endp->queue_size = 1;
2121                 endp->queue_last = 0;
2122                 endp->queue_next = 0;
2123                 endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] = urb;
2124                 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2125                 u132_endp_queue_work(u132, endp, 0);
2126                 return 0;
2127         }
2128 }
2129
2130 static int queue_control_on_old_endpoint(struct u132 *u132,
2131         struct usb_host_endpoint *hep, struct urb *urb,
2132         struct usb_device *usb_dev, struct u132_endp *endp, u8 usb_addr,
2133         u8 usb_endp)
2134 {
2135         if (usb_addr == 0) {
2136                 if (usb_pipein(urb->pipe)) {
2137                         urb->hcpriv = u132;
2138                         if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2139                                 endp->urb_list[ENDP_QUEUE_MASK &
2140                                         endp->queue_last++] = urb;
2141                         } else {
2142                                 struct u132_urbq *urbq =
2143                                         kmalloc(sizeof(struct u132_urbq),
2144                                         GFP_ATOMIC);
2145                                 if (urbq == NULL) {
2146                                         endp->queue_size -= 1;
2147                                         return -ENOMEM;
2148                                 } else {
2149                                         list_add_tail(&urbq->urb_more,
2150                                                 &endp->urb_more);
2151                                         urbq->urb = urb;
2152                                 }
2153                         }
2154                         return 0;
2155                 } else {        /* usb_pipeout(urb->pipe) */
2156                         struct u132_addr *addr = &u132->addr[usb_dev->devnum];
2157                         int I = MAX_U132_UDEVS;
2158                         int i = 0;
2159                         while (--I > 0) {
2160                                 struct u132_udev *udev = &u132->udev[++i];
2161                                 if (udev->usb_device) {
2162                                         continue;
2163                                 } else {
2164                                         udev->enumeration = 1;
2165                                         u132->addr[0].address = i;
2166                                         endp->udev_number = i;
2167                                         udev->udev_number = i;
2168                                         udev->usb_addr = usb_dev->devnum;
2169                                         u132_udev_init_kref(u132, udev);
2170                                         udev->endp_number_in[usb_endp] =
2171                                                 endp->endp_number;
2172                                         u132_udev_get_kref(u132, udev);
2173                                         udev->endp_number_out[usb_endp] =
2174                                                 endp->endp_number;
2175                                         udev->usb_device = usb_dev;
2176                                         ((u8 *) (urb->setup_packet))[2] =
2177                                                 addr->address = i;
2178                                         u132_udev_get_kref(u132, udev);
2179                                         break;
2180                                 }
2181                         }
2182                         if (I == 0) {
2183                                 dev_err(&u132->platform_dev->dev, "run out of d"
2184                                         "evice space\n");
2185                                 return -EINVAL;
2186                         }
2187                         urb->hcpriv = u132;
2188                         if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2189                                 endp->urb_list[ENDP_QUEUE_MASK &
2190                                         endp->queue_last++] = urb;
2191                         } else {
2192                                 struct u132_urbq *urbq =
2193                                         kmalloc(sizeof(struct u132_urbq),
2194                                         GFP_ATOMIC);
2195                                 if (urbq == NULL) {
2196                                         endp->queue_size -= 1;
2197                                         return -ENOMEM;
2198                                 } else {
2199                                         list_add_tail(&urbq->urb_more,
2200                                                 &endp->urb_more);
2201                                         urbq->urb = urb;
2202                                 }
2203                         }
2204                         return 0;
2205                 }
2206         } else {                /*(usb_addr > 0) */
2207                 u8 address = u132->addr[usb_addr].address;
2208                 struct u132_udev *udev = &u132->udev[address];
2209                 urb->hcpriv = u132;
2210                 if (udev->enumeration == 2) {
2211                 } else
2212                         udev->enumeration = 2;
2213                 if (endp->queue_size++ < ENDP_QUEUE_SIZE) {
2214                         endp->urb_list[ENDP_QUEUE_MASK & endp->queue_last++] =
2215                                 urb;
2216                 } else {
2217                         struct u132_urbq *urbq =
2218                                 kmalloc(sizeof(struct u132_urbq), GFP_ATOMIC);
2219                         if (urbq == NULL) {
2220                                 endp->queue_size -= 1;
2221                                 return -ENOMEM;
2222                         } else {
2223                                 list_add_tail(&urbq->urb_more, &endp->urb_more);
2224                                 urbq->urb = urb;
2225                         }
2226                 }
2227                 return 0;
2228         }
2229 }
2230
2231 static int u132_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *hep,
2232         struct urb *urb, gfp_t mem_flags)
2233 {
2234         struct u132 *u132 = hcd_to_u132(hcd);
2235         if (irqs_disabled()) {
2236                 if (__GFP_WAIT & mem_flags) {
2237                         printk(KERN_ERR "invalid context for function that migh"
2238                                 "t sleep\n");
2239                         return -EINVAL;
2240                 }
2241         }
2242         if (u132->going > 1) {
2243                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2244                         , u132->going);
2245                 return -ENODEV;
2246         } else if (u132->going > 0) {
2247                 dev_err(&u132->platform_dev->dev, "device is being removed urb="
2248                         "%p status=%d\n", urb, urb->status);
2249                 return -ESHUTDOWN;
2250         } else {
2251                 u8 usb_addr = usb_pipedevice(urb->pipe);
2252                 u8 usb_endp = usb_pipeendpoint(urb->pipe);
2253                 struct usb_device *usb_dev = urb->dev;
2254                 if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) {
2255                         u8 address = u132->addr[usb_addr].address;
2256                         struct u132_udev *udev = &u132->udev[address];
2257                         struct u132_endp *endp = hep->hcpriv;
2258                         urb->actual_length = 0;
2259                         if (endp) {
2260                                 unsigned long irqs;
2261                                 int retval;
2262                                 spin_lock_irqsave(&endp->queue_lock.slock,
2263                                         irqs);
2264                                 retval = queue_int_on_old_endpoint(u132, udev,
2265                                         hep, urb, usb_dev, endp, usb_addr,
2266                                         usb_endp, address);
2267                                 spin_unlock_irqrestore(&endp->queue_lock.slock,
2268                                         irqs);
2269                                 if (retval) {
2270                                         return retval;
2271                                 } else {
2272                                         u132_endp_queue_work(u132, endp,
2273                                                 msecs_to_jiffies(urb->interval))
2274                                                 ;
2275                                         return 0;
2276                                 }
2277                         } else if (u132->num_endpoints == MAX_U132_ENDPS) {
2278                                 return -EINVAL;
2279                         } else {        /*(endp == NULL) */
2280                                 return create_endpoint_and_queue_int(u132, udev,
2281                                          hep, urb, usb_dev, usb_addr, usb_endp,
2282                                         address, mem_flags);
2283                         }
2284                 } else if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
2285                         dev_err(&u132->platform_dev->dev, "the hardware does no"
2286                                 "t support PIPE_ISOCHRONOUS\n");
2287                         return -EINVAL;
2288                 } else if (usb_pipetype(urb->pipe) == PIPE_BULK) {
2289                         u8 address = u132->addr[usb_addr].address;
2290                         struct u132_udev *udev = &u132->udev[address];
2291                         struct u132_endp *endp = hep->hcpriv;
2292                         urb->actual_length = 0;
2293                         if (endp) {
2294                                 unsigned long irqs;
2295                                 int retval;
2296                                 spin_lock_irqsave(&endp->queue_lock.slock,
2297                                         irqs);
2298                                 retval = queue_bulk_on_old_endpoint(u132, udev,
2299                                         hep, urb, usb_dev, endp, usb_addr,
2300                                         usb_endp, address);
2301                                 spin_unlock_irqrestore(&endp->queue_lock.slock,
2302                                         irqs);
2303                                 if (retval) {
2304                                         return retval;
2305                                 } else {
2306                                         u132_endp_queue_work(u132, endp, 0);
2307                                         return 0;
2308                                 }
2309                         } else if (u132->num_endpoints == MAX_U132_ENDPS) {
2310                                 return -EINVAL;
2311                         } else
2312                                 return create_endpoint_and_queue_bulk(u132,
2313                                         udev, hep, urb, usb_dev, usb_addr,
2314                                         usb_endp, address, mem_flags);
2315                 } else {
2316                         struct u132_endp *endp = hep->hcpriv;
2317                         u16 urb_size = 8;
2318                         u8 *b = urb->setup_packet;
2319                         int i = 0;
2320                         char data[30 *3 + 4];
2321                         char *d = data;
2322                         int m = (sizeof(data) - 1) / 3;
2323                         int l = 0;
2324                         data[0] = 0;
2325                         while (urb_size-- > 0) {
2326                                 if (i > m) {
2327                                 } else if (i++ < m) {
2328                                         int w = sprintf(d, " %02X", *b++);
2329                                         d += w;
2330                                         l += w;
2331                                 } else
2332                                         d += sprintf(d, " ..");
2333                         }
2334                         if (endp) {
2335                                 unsigned long irqs;
2336                                 int retval;
2337                                 spin_lock_irqsave(&endp->queue_lock.slock,
2338                                         irqs);
2339                                 retval = queue_control_on_old_endpoint(u132,
2340                                         hep, urb, usb_dev, endp, usb_addr,
2341                                         usb_endp);
2342                                 spin_unlock_irqrestore(&endp->queue_lock.slock,
2343                                         irqs);
2344                                 if (retval) {
2345                                         return retval;
2346                                 } else {
2347                                         u132_endp_queue_work(u132, endp, 0);
2348                                         return 0;
2349                                 }
2350                         } else if (u132->num_endpoints == MAX_U132_ENDPS) {
2351                                 return -EINVAL;
2352                         } else
2353                                 return create_endpoint_and_queue_control(u132,
2354                                         hep, urb, usb_dev, usb_addr, usb_endp,
2355                                         mem_flags);
2356                 }
2357         }
2358 }
2359
2360 static int dequeue_from_overflow_chain(struct u132 *u132,
2361         struct u132_endp *endp, struct urb *urb)
2362 {
2363         struct list_head *scan;
2364         struct list_head *head = &endp->urb_more;
2365         list_for_each(scan, head) {
2366                 struct u132_urbq *urbq = list_entry(scan, struct u132_urbq,
2367                         urb_more);
2368                 if (urbq->urb == urb) {
2369                         struct usb_hcd *hcd = u132_to_hcd(u132);
2370                         list_del(scan);
2371                         endp->queue_size -= 1;
2372                         urb->error_count = 0;
2373                         urb->hcpriv = NULL;
2374                         usb_hcd_giveback_urb(hcd, urb);
2375                         return 0;
2376                 } else
2377                         continue;
2378         }
2379         dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]=%p ring"
2380                 "[%d] %c%c usb_endp=%d usb_addr=%d size=%d next=%04X last=%04X"
2381                 "\n", urb, endp->endp_number, endp, endp->ring->number,
2382                 endp->input ? 'I' : ' ', endp->output ? 'O' : ' ',
2383                 endp->usb_endp, endp->usb_addr, endp->queue_size,
2384                 endp->queue_next, endp->queue_last);
2385         return -EINVAL;
2386 }
2387
2388 static int u132_endp_urb_dequeue(struct u132 *u132, struct u132_endp *endp,
2389         struct urb *urb)
2390 {
2391         unsigned long irqs;
2392         spin_lock_irqsave(&endp->queue_lock.slock, irqs);
2393         if (endp->queue_size == 0) {
2394                 dev_err(&u132->platform_dev->dev, "urb=%p not found in endp[%d]"
2395                         "=%p ring[%d] %c%c usb_endp=%d usb_addr=%d\n", urb,
2396                         endp->endp_number, endp, endp->ring->number,
2397                         endp->input ? 'I' : ' ', endp->output ? 'O' : ' ',
2398                         endp->usb_endp, endp->usb_addr);
2399                 spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2400                 return -EINVAL;
2401         }
2402         if (urb == endp->urb_list[ENDP_QUEUE_MASK & endp->queue_next]) {
2403                 if (endp->active) {
2404                         endp->dequeueing = 1;
2405                         endp->edset_flush = 1;
2406                         u132_endp_queue_work(u132, endp, 0);
2407                         spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2408                         urb->hcpriv = NULL;
2409                         return 0;
2410                 } else {
2411                         spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2412                         u132_hcd_abandon_urb(u132, endp, urb, urb->status);
2413                         return 0;
2414                 }
2415         } else {
2416                 u16 queue_list = 0;
2417                 u16 queue_size = endp->queue_size;
2418                 u16 queue_scan = endp->queue_next;
2419                 struct urb **urb_slot = NULL;
2420                 while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) {
2421                         if (urb == endp->urb_list[ENDP_QUEUE_MASK &
2422                                 ++queue_scan]) {
2423                                 urb_slot = &endp->urb_list[ENDP_QUEUE_MASK &
2424                                         queue_scan];
2425                                 break;
2426                         } else
2427                                 continue;
2428                 }
2429                 while (++queue_list < ENDP_QUEUE_SIZE && --queue_size > 0) {
2430                         *urb_slot = endp->urb_list[ENDP_QUEUE_MASK &
2431                                 ++queue_scan];
2432                         urb_slot = &endp->urb_list[ENDP_QUEUE_MASK &
2433                                 queue_scan];
2434                 }
2435                 if (urb_slot) {
2436                         struct usb_hcd *hcd = u132_to_hcd(u132);
2437                         endp->queue_size -= 1;
2438                         if (list_empty(&endp->urb_more)) {
2439                                 spin_unlock_irqrestore(&endp->queue_lock.slock,
2440                                         irqs);
2441                         } else {
2442                                 struct list_head *next = endp->urb_more.next;
2443                                 struct u132_urbq *urbq = list_entry(next,
2444                                         struct u132_urbq, urb_more);
2445                                 list_del(next);
2446                                 *urb_slot = urbq->urb;
2447                                 spin_unlock_irqrestore(&endp->queue_lock.slock,
2448                                         irqs);
2449                                 kfree(urbq);
2450                         } urb->error_count = 0;
2451                         urb->hcpriv = NULL;
2452                         usb_hcd_giveback_urb(hcd, urb);
2453                         return 0;
2454                 } else if (list_empty(&endp->urb_more)) {
2455                         dev_err(&u132->platform_dev->dev, "urb=%p not found in "
2456                                 "endp[%d]=%p ring[%d] %c%c usb_endp=%d usb_addr"
2457                                 "=%d size=%d next=%04X last=%04X\n", urb,
2458                                 endp->endp_number, endp, endp->ring->number,
2459                                 endp->input ? 'I' : ' ',
2460                                 endp->output ? 'O' : ' ', endp->usb_endp,
2461                                 endp->usb_addr, endp->queue_size,
2462                                 endp->queue_next, endp->queue_last);
2463                         spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2464                         return -EINVAL;
2465                 } else {
2466                         int retval = dequeue_from_overflow_chain(u132, endp,
2467                                 urb);
2468                         spin_unlock_irqrestore(&endp->queue_lock.slock, irqs);
2469                         return retval;
2470                 }
2471         }
2472 }
2473
2474 static int u132_urb_dequeue(struct usb_hcd *hcd, struct urb *urb)
2475 {
2476         struct u132 *u132 = hcd_to_u132(hcd);
2477         if (u132->going > 2) {
2478                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2479                         , u132->going);
2480                 return -ENODEV;
2481         } else {
2482                 u8 usb_addr = usb_pipedevice(urb->pipe);
2483                 u8 usb_endp = usb_pipeendpoint(urb->pipe);
2484                 u8 address = u132->addr[usb_addr].address;
2485                 struct u132_udev *udev = &u132->udev[address];
2486                 if (usb_pipein(urb->pipe)) {
2487                         u8 endp_number = udev->endp_number_in[usb_endp];
2488                         struct u132_endp *endp = u132->endp[endp_number - 1];
2489                         return u132_endp_urb_dequeue(u132, endp, urb);
2490                 } else {
2491                         u8 endp_number = udev->endp_number_out[usb_endp];
2492                         struct u132_endp *endp = u132->endp[endp_number - 1];
2493                         return u132_endp_urb_dequeue(u132, endp, urb);
2494                 }
2495         }
2496 }
2497
2498 static void u132_endpoint_disable(struct usb_hcd *hcd,
2499         struct usb_host_endpoint *hep)
2500 {
2501         struct u132 *u132 = hcd_to_u132(hcd);
2502         if (u132->going > 2) {
2503                 dev_err(&u132->platform_dev->dev, "u132 device %p(hcd=%p hep=%p"
2504                         ") has been removed %d\n", u132, hcd, hep,
2505                         u132->going);
2506         } else {
2507                 struct u132_endp *endp = hep->hcpriv;
2508                 if (endp)
2509                         u132_endp_put_kref(u132, endp);
2510         }
2511 }
2512
2513 static int u132_get_frame(struct usb_hcd *hcd)
2514 {
2515         struct u132 *u132 = hcd_to_u132(hcd);
2516         if (u132->going > 1) {
2517                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2518                         , u132->going);
2519                 return -ENODEV;
2520         } else if (u132->going > 0) {
2521                 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2522                 return -ESHUTDOWN;
2523         } else {
2524                 int frame = 0;
2525                 dev_err(&u132->platform_dev->dev, "TODO: u132_get_frame\n");
2526                 msleep(100);
2527                 return frame;
2528         }
2529 }
2530
2531 static int u132_roothub_descriptor(struct u132 *u132,
2532         struct usb_hub_descriptor *desc)
2533 {
2534         int retval;
2535         u16 temp;
2536         u32 rh_a = -1;
2537         u32 rh_b = -1;
2538         retval = u132_read_pcimem(u132, roothub.a, &rh_a);
2539         if (retval)
2540                 return retval;
2541         desc->bDescriptorType = 0x29;
2542         desc->bPwrOn2PwrGood = (rh_a & RH_A_POTPGT) >> 24;
2543         desc->bHubContrCurrent = 0;
2544         desc->bNbrPorts = u132->num_ports;
2545         temp = 1 + (u132->num_ports / 8);
2546         desc->bDescLength = 7 + 2 *temp;
2547         temp = 0;
2548         if (rh_a & RH_A_NPS)
2549                 temp |= 0x0002;
2550         if (rh_a & RH_A_PSM)
2551                 temp |= 0x0001;
2552         if (rh_a & RH_A_NOCP) {
2553                 temp |= 0x0010;
2554         } else if (rh_a & RH_A_OCPM)
2555                 temp |= 0x0008;
2556         desc->wHubCharacteristics = cpu_to_le16(temp);
2557         retval = u132_read_pcimem(u132, roothub.b, &rh_b);
2558         if (retval)
2559                 return retval;
2560         memset(desc->bitmap, 0xff, sizeof(desc->bitmap));
2561         desc->bitmap[0] = rh_b & RH_B_DR;
2562         if (u132->num_ports > 7) {
2563                 desc->bitmap[1] = (rh_b & RH_B_DR) >> 8;
2564                 desc->bitmap[2] = 0xff;
2565         } else
2566                 desc->bitmap[1] = 0xff;
2567         return 0;
2568 }
2569
2570 static int u132_roothub_status(struct u132 *u132, __le32 *desc)
2571 {
2572         u32 rh_status = -1;
2573         int ret_status = u132_read_pcimem(u132, roothub.status, &rh_status);
2574         *desc = cpu_to_le32(rh_status);
2575         return ret_status;
2576 }
2577
2578 static int u132_roothub_portstatus(struct u132 *u132, __le32 *desc, u16 wIndex)
2579 {
2580         if (wIndex == 0 || wIndex > u132->num_ports) {
2581                 return -EINVAL;
2582         } else {
2583                 int port = wIndex - 1;
2584                 u32 rh_portstatus = -1;
2585                 int ret_portstatus = u132_read_pcimem(u132,
2586                         roothub.portstatus[port], &rh_portstatus);
2587                 *desc = cpu_to_le32(rh_portstatus);
2588                 if (*(u16 *) (desc + 2)) {
2589                         dev_info(&u132->platform_dev->dev, "Port %d Status Chan"
2590                                 "ge = %08X\n", port, *desc);
2591                 }
2592                 return ret_portstatus;
2593         }
2594 }
2595
2596
2597 /* this timer value might be vendor-specific ... */
2598 #define PORT_RESET_HW_MSEC 10
2599 #define PORT_RESET_MSEC 10
2600 /* wrap-aware logic morphed from <linux/jiffies.h> */
2601 #define tick_before(t1, t2) ((s16)(((s16)(t1))-((s16)(t2))) < 0)
2602 static int u132_roothub_portreset(struct u132 *u132, int port_index)
2603 {
2604         int retval;
2605         u32 fmnumber;
2606         u16 now;
2607         u16 reset_done;
2608         retval = u132_read_pcimem(u132, fmnumber, &fmnumber);
2609         if (retval)
2610                 return retval;
2611         now = fmnumber;
2612         reset_done = now + PORT_RESET_MSEC;
2613         do {
2614                 u32 portstat;
2615                 do {
2616                         retval = u132_read_pcimem(u132,
2617                                 roothub.portstatus[port_index], &portstat);
2618                         if (retval)
2619                                 return retval;
2620                         if (RH_PS_PRS & portstat) {
2621                                 continue;
2622                         } else
2623                                 break;
2624                 } while (tick_before(now, reset_done));
2625                 if (RH_PS_PRS & portstat)
2626                         return -ENODEV;
2627                 if (RH_PS_CCS & portstat) {
2628                         if (RH_PS_PRSC & portstat) {
2629                                 retval = u132_write_pcimem(u132,
2630                                         roothub.portstatus[port_index],
2631                                         RH_PS_PRSC);
2632                                 if (retval)
2633                                         return retval;
2634                         }
2635                 } else
2636                         break;        /* start the next reset,
2637                                 sleep till it's probably done */
2638                 retval = u132_write_pcimem(u132, roothub.portstatus[port_index],
2639                          RH_PS_PRS);
2640                 if (retval)
2641                         return retval;
2642                 msleep(PORT_RESET_HW_MSEC);
2643                 retval = u132_read_pcimem(u132, fmnumber, &fmnumber);
2644                 if (retval)
2645                         return retval;
2646                 now = fmnumber;
2647         } while (tick_before(now, reset_done));
2648         return 0;
2649 }
2650
2651 static int u132_roothub_setportfeature(struct u132 *u132, u16 wValue,
2652         u16 wIndex)
2653 {
2654         if (wIndex == 0 || wIndex > u132->num_ports) {
2655                 return -EINVAL;
2656         } else {
2657                 int retval;
2658                 int port_index = wIndex - 1;
2659                 struct u132_port *port = &u132->port[port_index];
2660                 port->Status &= ~(1 << wValue);
2661                 switch (wValue) {
2662                 case USB_PORT_FEAT_SUSPEND:
2663                         retval = u132_write_pcimem(u132,
2664                                 roothub.portstatus[port_index], RH_PS_PSS);
2665                         if (retval)
2666                                 return retval;
2667                         return 0;
2668                 case USB_PORT_FEAT_POWER:
2669                         retval = u132_write_pcimem(u132,
2670                                 roothub.portstatus[port_index], RH_PS_PPS);
2671                         if (retval)
2672                                 return retval;
2673                         return 0;
2674                 case USB_PORT_FEAT_RESET:
2675                         retval = u132_roothub_portreset(u132, port_index);
2676                         if (retval)
2677                                 return retval;
2678                         return 0;
2679                 default:
2680                         return -EPIPE;
2681                 }
2682         }
2683 }
2684
2685 static int u132_roothub_clearportfeature(struct u132 *u132, u16 wValue,
2686         u16 wIndex)
2687 {
2688         if (wIndex == 0 || wIndex > u132->num_ports) {
2689                 return -EINVAL;
2690         } else {
2691                 int port_index = wIndex - 1;
2692                 u32 temp;
2693                 int retval;
2694                 struct u132_port *port = &u132->port[port_index];
2695                 port->Status &= ~(1 << wValue);
2696                 switch (wValue) {
2697                 case USB_PORT_FEAT_ENABLE:
2698                         temp = RH_PS_CCS;
2699                         break;
2700                 case USB_PORT_FEAT_C_ENABLE:
2701                         temp = RH_PS_PESC;
2702                         break;
2703                 case USB_PORT_FEAT_SUSPEND:
2704                         temp = RH_PS_POCI;
2705                         if ((u132->hc_control & OHCI_CTRL_HCFS)
2706                                 != OHCI_USB_OPER) {
2707                                 dev_err(&u132->platform_dev->dev, "TODO resume_"
2708                                         "root_hub\n");
2709                         }
2710                         break;
2711                 case USB_PORT_FEAT_C_SUSPEND:
2712                         temp = RH_PS_PSSC;
2713                         break;
2714                 case USB_PORT_FEAT_POWER:
2715                         temp = RH_PS_LSDA;
2716                         break;
2717                 case USB_PORT_FEAT_C_CONNECTION:
2718                         temp = RH_PS_CSC;
2719                         break;
2720                 case USB_PORT_FEAT_C_OVER_CURRENT:
2721                         temp = RH_PS_OCIC;
2722                         break;
2723                 case USB_PORT_FEAT_C_RESET:
2724                         temp = RH_PS_PRSC;
2725                         break;
2726                 default:
2727                         return -EPIPE;
2728                 }
2729                 retval = u132_write_pcimem(u132, roothub.portstatus[port_index],
2730                          temp);
2731                 if (retval)
2732                         return retval;
2733                 return 0;
2734         }
2735 }
2736
2737
2738 /* the virtual root hub timer IRQ checks for hub status*/
2739 static int u132_hub_status_data(struct usb_hcd *hcd, char *buf)
2740 {
2741         struct u132 *u132 = hcd_to_u132(hcd);
2742         if (u132->going > 1) {
2743                 dev_err(&u132->platform_dev->dev, "device hcd=%p has been remov"
2744                         "ed %d\n", hcd, u132->going);
2745                 return -ENODEV;
2746         } else if (u132->going > 0) {
2747                 dev_err(&u132->platform_dev->dev, "device hcd=%p is being remov"
2748                         "ed\n", hcd);
2749                 return -ESHUTDOWN;
2750         } else {
2751                 int i, changed = 0, length = 1;
2752                 if (u132->flags & OHCI_QUIRK_AMD756) {
2753                         if ((u132->hc_roothub_a & RH_A_NDP) > MAX_ROOT_PORTS) {
2754                                 dev_err(&u132->platform_dev->dev, "bogus NDP, r"
2755                                         "ereads as NDP=%d\n",
2756                                         u132->hc_roothub_a & RH_A_NDP);
2757                                 goto done;
2758                         }
2759                 }
2760                 if (u132->hc_roothub_status & (RH_HS_LPSC | RH_HS_OCIC)) {
2761                         buf[0] = changed = 1;
2762                 } else
2763                         buf[0] = 0;
2764                 if (u132->num_ports > 7) {
2765                         buf[1] = 0;
2766                         length++;
2767                 }
2768                 for (i = 0; i < u132->num_ports; i++) {
2769                         if (u132->hc_roothub_portstatus[i] & (RH_PS_CSC |
2770                                 RH_PS_PESC | RH_PS_PSSC | RH_PS_OCIC |
2771                                 RH_PS_PRSC)) {
2772                                 changed = 1;
2773                                 if (i < 7) {
2774                                         buf[0] |= 1 << (i + 1);
2775                                 } else
2776                                         buf[1] |= 1 << (i - 7);
2777                                 continue;
2778                         }
2779                         if (!(u132->hc_roothub_portstatus[i] & RH_PS_CCS)) {
2780                                 continue;
2781                         }
2782                         if ((u132->hc_roothub_portstatus[i] & RH_PS_PSS)) {
2783                                 continue;
2784                         }
2785                 }
2786               done:return changed ? length : 0;
2787         }
2788 }
2789
2790 static int u132_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
2791         u16 wIndex, char *buf, u16 wLength)
2792 {
2793         struct u132 *u132 = hcd_to_u132(hcd);
2794         if (u132->going > 1) {
2795                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2796                         , u132->going);
2797                 return -ENODEV;
2798         } else if (u132->going > 0) {
2799                 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2800                 return -ESHUTDOWN;
2801         } else {
2802                 int retval = 0;
2803                 down(&u132->sw_lock);
2804                 switch (typeReq) {
2805                 case ClearHubFeature:
2806                         switch (wValue) {
2807                         case C_HUB_OVER_CURRENT:
2808                         case C_HUB_LOCAL_POWER:
2809                                 break;
2810                         default:
2811                                 goto stall;
2812                         }
2813                         break;
2814                 case SetHubFeature:
2815                         switch (wValue) {
2816                         case C_HUB_OVER_CURRENT:
2817                         case C_HUB_LOCAL_POWER:
2818                                 break;
2819                         default:
2820                                 goto stall;
2821                         }
2822                         break;
2823                 case ClearPortFeature:{
2824                                 retval = u132_roothub_clearportfeature(u132,
2825                                         wValue, wIndex);
2826                                 if (retval)
2827                                         goto error;
2828                                 break;
2829                         }
2830                 case GetHubDescriptor:{
2831                                 retval = u132_roothub_descriptor(u132,
2832                                         (struct usb_hub_descriptor *)buf);
2833                                 if (retval)
2834                                         goto error;
2835                                 break;
2836                         }
2837                 case GetHubStatus:{
2838                                 retval = u132_roothub_status(u132,
2839                                         (__le32 *) buf);
2840                                 if (retval)
2841                                         goto error;
2842                                 break;
2843                         }
2844                 case GetPortStatus:{
2845                                 retval = u132_roothub_portstatus(u132,
2846                                         (__le32 *) buf, wIndex);
2847                                 if (retval)
2848                                         goto error;
2849                                 break;
2850                         }
2851                 case SetPortFeature:{
2852                                 retval = u132_roothub_setportfeature(u132,
2853                                         wValue, wIndex);
2854                                 if (retval)
2855                                         goto error;
2856                                 break;
2857                         }
2858                 default:
2859                         goto stall;
2860                       error:u132_disable(u132);
2861                         u132->going = 1;
2862                         break;
2863                       stall:retval = -EPIPE;
2864                         break;
2865                 }
2866                 up(&u132->sw_lock);
2867                 return retval;
2868         }
2869 }
2870
2871 static int u132_start_port_reset(struct usb_hcd *hcd, unsigned port_num)
2872 {
2873         struct u132 *u132 = hcd_to_u132(hcd);
2874         if (u132->going > 1) {
2875                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2876                         , u132->going);
2877                 return -ENODEV;
2878         } else if (u132->going > 0) {
2879                 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2880                 return -ESHUTDOWN;
2881         } else
2882                 return 0;
2883 }
2884
2885 static void u132_hub_irq_enable(struct usb_hcd *hcd)
2886 {
2887         struct u132 *u132 = hcd_to_u132(hcd);
2888         if (u132->going > 1) {
2889                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2890                         , u132->going);
2891         } else if (u132->going > 0)
2892                 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2893 }
2894
2895
2896 #ifdef CONFIG_PM
2897 static int u132_hcd_suspend(struct usb_hcd *hcd, pm_message_t message)
2898 {
2899         struct u132 *u132 = hcd_to_u132(hcd);
2900         if (u132->going > 1) {
2901                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2902                         , u132->going);
2903                 return -ENODEV;
2904         } else if (u132->going > 0) {
2905                 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2906                 return -ESHUTDOWN;
2907         } else
2908                 return 0;
2909 }
2910
2911 static int u132_hcd_resume(struct usb_hcd *hcd)
2912 {
2913         struct u132 *u132 = hcd_to_u132(hcd);
2914         if (u132->going > 1) {
2915                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2916                         , u132->going);
2917                 return -ENODEV;
2918         } else if (u132->going > 0) {
2919                 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2920                 return -ESHUTDOWN;
2921         } else
2922                 return 0;
2923 }
2924
2925 static int u132_bus_suspend(struct usb_hcd *hcd)
2926 {
2927         struct u132 *u132 = hcd_to_u132(hcd);
2928         if (u132->going > 1) {
2929                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2930                         , u132->going);
2931                 return -ENODEV;
2932         } else if (u132->going > 0) {
2933                 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2934                 return -ESHUTDOWN;
2935         } else
2936                 return 0;
2937 }
2938
2939 static int u132_bus_resume(struct usb_hcd *hcd)
2940 {
2941         struct u132 *u132 = hcd_to_u132(hcd);
2942         if (u132->going > 1) {
2943                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
2944                         , u132->going);
2945                 return -ENODEV;
2946         } else if (u132->going > 0) {
2947                 dev_err(&u132->platform_dev->dev, "device is being removed\n");
2948                 return -ESHUTDOWN;
2949         } else
2950                 return 0;
2951 }
2952
2953 #else
2954 #define u132_hcd_suspend NULL
2955 #define u132_hcd_resume NULL
2956 #define u132_bus_suspend NULL
2957 #define u132_bus_resume NULL
2958 #endif
2959 static struct hc_driver u132_hc_driver = {
2960         .description = hcd_name,
2961         .hcd_priv_size = sizeof(struct u132),
2962         .irq = NULL,
2963         .flags = HCD_USB11 | HCD_MEMORY,
2964         .reset = u132_hcd_reset,
2965         .start = u132_hcd_start,
2966         .suspend = u132_hcd_suspend,
2967         .resume = u132_hcd_resume,
2968         .stop = u132_hcd_stop,
2969         .urb_enqueue = u132_urb_enqueue,
2970         .urb_dequeue = u132_urb_dequeue,
2971         .endpoint_disable = u132_endpoint_disable,
2972         .get_frame_number = u132_get_frame,
2973         .hub_status_data = u132_hub_status_data,
2974         .hub_control = u132_hub_control,
2975         .bus_suspend = u132_bus_suspend,
2976         .bus_resume = u132_bus_resume,
2977         .start_port_reset = u132_start_port_reset,
2978         .hub_irq_enable = u132_hub_irq_enable,
2979 };
2980
2981 /*
2982 * This function may be called by the USB core whilst the "usb_all_devices_rwsem"
2983 * is held for writing, thus this module must not call usb_remove_hcd()
2984 * synchronously - but instead should immediately stop activity to the
2985 * device and asynchronously call usb_remove_hcd()
2986 */
2987 static int __devexit u132_remove(struct platform_device *pdev)
2988 {
2989         struct usb_hcd *hcd = platform_get_drvdata(pdev);
2990         if (hcd) {
2991                 struct u132 *u132 = hcd_to_u132(hcd);
2992                 if (u132->going++ > 1) {
2993                         dev_err(&u132->platform_dev->dev, "already being remove"
2994                                 "d\n");
2995                         return -ENODEV;
2996                 } else {
2997                         int rings = MAX_U132_RINGS;
2998                         int endps = MAX_U132_ENDPS;
2999                         dev_err(&u132->platform_dev->dev, "removing device u132"
3000                                 ".%d\n", u132->sequence_num);
3001                         msleep(100);
3002                         down(&u132->sw_lock);
3003                         u132_monitor_cancel_work(u132);
3004                         while (rings-- > 0) {
3005                                 struct u132_ring *ring = &u132->ring[rings];
3006                                 u132_ring_cancel_work(u132, ring);
3007                         } while (endps-- > 0) {
3008                                 struct u132_endp *endp = u132->endp[endps];
3009                                 if (endp)
3010                                         u132_endp_cancel_work(u132, endp);
3011                         }
3012                         u132->going += 1;
3013                         printk(KERN_INFO "removing device u132.%d\n",
3014                                 u132->sequence_num);
3015                         up(&u132->sw_lock);
3016                         usb_remove_hcd(hcd);
3017                         u132_u132_put_kref(u132);
3018                         return 0;
3019                 }
3020         } else
3021                 return 0;
3022 }
3023
3024 static void u132_initialise(struct u132 *u132, struct platform_device *pdev)
3025 {
3026         int rings = MAX_U132_RINGS;
3027         int ports = MAX_U132_PORTS;
3028         int addrs = MAX_U132_ADDRS;
3029         int udevs = MAX_U132_UDEVS;
3030         int endps = MAX_U132_ENDPS;
3031         u132->board = pdev->dev.platform_data;
3032         u132->platform_dev = pdev;
3033         u132->power = 0;
3034         u132->reset = 0;
3035         init_MUTEX(&u132->sw_lock);
3036         init_MUTEX(&u132->scheduler_lock);
3037         while (rings-- > 0) {
3038                 struct u132_ring *ring = &u132->ring[rings];
3039                 ring->u132 = u132;
3040                 ring->number = rings + 1;
3041                 ring->length = 0;
3042                 ring->curr_endp = NULL;
3043                 INIT_DELAYED_WORK(&ring->scheduler,
3044                                   u132_hcd_ring_work_scheduler);
3045         } down(&u132->sw_lock);
3046         INIT_DELAYED_WORK(&u132->monitor, u132_hcd_monitor_work);
3047         while (ports-- > 0) {
3048                 struct u132_port *port = &u132->port[ports];
3049                 port->u132 = u132;
3050                 port->reset = 0;
3051                 port->enable = 0;
3052                 port->power = 0;
3053                 port->Status = 0;
3054         } while (addrs-- > 0) {
3055                 struct u132_addr *addr = &u132->addr[addrs];
3056                 addr->address = 0;
3057         } while (udevs-- > 0) {
3058                 struct u132_udev *udev = &u132->udev[udevs];
3059                 int i = ARRAY_SIZE(udev->endp_number_in);
3060                 int o = ARRAY_SIZE(udev->endp_number_out);
3061                 udev->usb_device = NULL;
3062                 udev->udev_number = 0;
3063                 udev->usb_addr = 0;
3064                 udev->portnumber = 0;
3065                 while (i-- > 0) {
3066                         udev->endp_number_in[i] = 0;
3067                 }
3068                 while (o-- > 0) {
3069                         udev->endp_number_out[o] = 0;
3070                 }
3071         }
3072         while (endps-- > 0) {
3073                 u132->endp[endps] = NULL;
3074         }
3075         up(&u132->sw_lock);
3076         return;
3077 }
3078
3079 static int __devinit u132_probe(struct platform_device *pdev)
3080 {
3081         struct usb_hcd *hcd;
3082         int retval;
3083         u32 control;
3084         u32 rh_a = -1;
3085         u32 num_ports;
3086         msleep(100);
3087         if (u132_exiting > 0) {
3088                 return -ENODEV;
3089         }
3090         retval = ftdi_write_pcimem(pdev, intrdisable, OHCI_INTR_MIE);
3091         if (retval)
3092                 return retval;
3093         retval = ftdi_read_pcimem(pdev, control, &control);
3094         if (retval)
3095                 return retval;
3096         retval = ftdi_read_pcimem(pdev, roothub.a, &rh_a);
3097         if (retval)
3098                 return retval;
3099         num_ports = rh_a & RH_A_NDP;        /* refuse to confuse usbcore */
3100         if (pdev->dev.dma_mask) {
3101                 return -EINVAL;
3102         }
3103         hcd = usb_create_hcd(&u132_hc_driver, &pdev->dev, pdev->dev.bus_id);
3104         if (!hcd) {
3105                 printk(KERN_ERR "failed to create the usb hcd struct for U132\n"
3106                         );
3107                 ftdi_elan_gone_away(pdev);
3108                 return -ENOMEM;
3109         } else {
3110                 int retval = 0;
3111                 struct u132 *u132 = hcd_to_u132(hcd);
3112                 hcd->rsrc_start = 0;
3113                 down(&u132_module_lock);
3114                 list_add_tail(&u132->u132_list, &u132_static_list);
3115                 u132->sequence_num = ++u132_instances;
3116                 up(&u132_module_lock);
3117                 u132_u132_init_kref(u132);
3118                 u132_initialise(u132, pdev);
3119                 hcd->product_desc = "ELAN U132 Host Controller";
3120                 retval = usb_add_hcd(hcd, 0, 0);
3121                 if (retval != 0) {
3122                         dev_err(&u132->platform_dev->dev, "init error %d\n",
3123                                 retval);
3124                         u132_u132_put_kref(u132);
3125                         return retval;
3126                 } else {
3127                         u132_monitor_queue_work(u132, 100);
3128                         return 0;
3129                 }
3130         }
3131 }
3132
3133
3134 #ifdef CONFIG_PM
3135 /* for this device there's no useful distinction between the controller
3136 * and its root hub, except that the root hub only gets direct PM calls
3137 * when CONFIG_USB_SUSPEND is enabled.
3138 */
3139 static int u132_suspend(struct platform_device *pdev, pm_message_t state)
3140 {
3141         struct usb_hcd *hcd = platform_get_drvdata(pdev);
3142         struct u132 *u132 = hcd_to_u132(hcd);
3143         if (u132->going > 1) {
3144                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
3145                         , u132->going);
3146                 return -ENODEV;
3147         } else if (u132->going > 0) {
3148                 dev_err(&u132->platform_dev->dev, "device is being removed\n");
3149                 return -ESHUTDOWN;
3150         } else {
3151                 int retval = 0;
3152                 if (state.event == PM_EVENT_FREEZE) {
3153                         retval = u132_bus_suspend(hcd);
3154                 } else if (state.event == PM_EVENT_SUSPEND) {
3155                         int ports = MAX_U132_PORTS;
3156                         while (ports-- > 0) {
3157                                 port_power(u132, ports, 0);
3158                         }
3159                 }
3160                 if (retval == 0)
3161                         pdev->dev.power.power_state = state;
3162                 return retval;
3163         }
3164 }
3165
3166 static int u132_resume(struct platform_device *pdev)
3167 {
3168         struct usb_hcd *hcd = platform_get_drvdata(pdev);
3169         struct u132 *u132 = hcd_to_u132(hcd);
3170         if (u132->going > 1) {
3171                 dev_err(&u132->platform_dev->dev, "device has been removed %d\n"
3172                         , u132->going);
3173                 return -ENODEV;
3174         } else if (u132->going > 0) {
3175                 dev_err(&u132->platform_dev->dev, "device is being removed\n");
3176                 return -ESHUTDOWN;
3177         } else {
3178                 int retval = 0;
3179                 if (pdev->dev.power.power_state.event == PM_EVENT_SUSPEND) {
3180                         int ports = MAX_U132_PORTS;
3181                         while (ports-- > 0) {
3182                                 port_power(u132, ports, 1);
3183                         }
3184                         retval = 0;
3185                 } else {
3186                         pdev->dev.power.power_state = PMSG_ON;
3187                         retval = u132_bus_resume(hcd);
3188                 }
3189                 return retval;
3190         }
3191 }
3192
3193 #else
3194 #define u132_suspend NULL
3195 #define u132_resume NULL
3196 #endif
3197 /*
3198 * this driver is loaded explicitly by ftdi_u132
3199 *
3200 * the platform_driver struct is static because it is per type of module
3201 */
3202 static struct platform_driver u132_platform_driver = {
3203         .probe = u132_probe,
3204         .remove = __devexit_p(u132_remove),
3205         .suspend = u132_suspend,
3206         .resume = u132_resume,
3207         .driver = {
3208                    .name = (char *)hcd_name,
3209                    .owner = THIS_MODULE,
3210                    },
3211 };
3212 static int __init u132_hcd_init(void)
3213 {
3214         int retval;
3215         INIT_LIST_HEAD(&u132_static_list);
3216         u132_instances = 0;
3217         u132_exiting = 0;
3218         init_MUTEX(&u132_module_lock);
3219         if (usb_disabled())
3220                 return -ENODEV;
3221         printk(KERN_INFO "driver %s built at %s on %s\n", hcd_name, __TIME__,
3222                 __DATE__);
3223         workqueue = create_singlethread_workqueue("u132");
3224         retval = platform_driver_register(&u132_platform_driver);
3225         return retval;
3226 }
3227
3228
3229 module_init(u132_hcd_init);
3230 static void __exit u132_hcd_exit(void)
3231 {
3232         struct u132 *u132;
3233         struct u132 *temp;
3234         down(&u132_module_lock);
3235         u132_exiting += 1;
3236         up(&u132_module_lock);
3237         list_for_each_entry_safe(u132, temp, &u132_static_list, u132_list) {
3238                 platform_device_unregister(u132->platform_dev);
3239         } platform_driver_unregister(&u132_platform_driver);
3240         printk(KERN_INFO "u132-hcd driver deregistered\n");
3241         wait_event(u132_hcd_wait, u132_instances == 0);
3242         flush_workqueue(workqueue);
3243         destroy_workqueue(workqueue);
3244 }
3245
3246
3247 module_exit(u132_hcd_exit);
3248 MODULE_LICENSE("GPL");