drivers/net/wireless/p54/p54usb.c

   1
   2 /*
   3  * Linux device driver for USB based Prism54
   4  *
   5  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
   6  *
   7  * Based on the islsm (softmac prism54) driver, which is:
   8  * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #include <linux/init.h>
  16 #include <linux/usb.h>
  17 #include <linux/pci.h>
  18 #include <linux/slab.h>
  19 #include <linux/firmware.h>
  20 #include <linux/etherdevice.h>
  21 #include <linux/delay.h>
  22 #include <linux/crc32.h>
  23 #include <linux/module.h>
  24 #include <net/mac80211.h>
  25
  26 #include "p54.h"
  27 #include "lmac.h"
  28 #include "p54usb.h"
  29
  30 MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
  31 MODULE_DESCRIPTION("Prism54 USB wireless driver");
  32 MODULE_LICENSE("GPL");
  33 MODULE_ALIAS("prism54usb");
  34 MODULE_FIRMWARE("isl3886usb");
  35 MODULE_FIRMWARE("isl3887usb");
  36
  37 /*
  38  * Note:
  39  *
  40  * Always update our wiki's device list (located at:
  41  * http://wireless.kernel.org/en/users/Drivers/p54/devices ),
  42  * whenever you add a new device.
  43  */
  44
  45 static struct usb_device_id p54u_table[] = {
  46         /* Version 1 devices (pci chip + net2280) */
  47         {USB_DEVICE(0x0411, 0x0050)},   /* Buffalo WLI2-USB2-G54 */
  48         {USB_DEVICE(0x045e, 0x00c2)},   /* Microsoft MN-710 */
  49         {USB_DEVICE(0x0506, 0x0a11)},   /* 3COM 3CRWE254G72 */
  50         {USB_DEVICE(0x0675, 0x0530)},   /* DrayTek Vigor 530 */
  51         {USB_DEVICE(0x06b9, 0x0120)},   /* Thomson SpeedTouch 120g */
  52         {USB_DEVICE(0x0707, 0xee06)},   /* SMC 2862W-G */
  53         {USB_DEVICE(0x07aa, 0x001c)},   /* Corega CG-WLUSB2GT */
  54         {USB_DEVICE(0x083a, 0x4501)},   /* Accton 802.11g WN4501 USB */
  55         {USB_DEVICE(0x083a, 0x4502)},   /* Siemens Gigaset USB Adapter */
  56         {USB_DEVICE(0x083a, 0x5501)},   /* Phillips CPWUA054 */
  57         {USB_DEVICE(0x0846, 0x4200)},   /* Netgear WG121 */
  58         {USB_DEVICE(0x0846, 0x4210)},   /* Netgear WG121 the second ? */
  59         {USB_DEVICE(0x0846, 0x4220)},   /* Netgear WG111 */
  60         {USB_DEVICE(0x09aa, 0x1000)},   /* Spinnaker Proto board */
  61         {USB_DEVICE(0x0bf8, 0x1007)},   /* Fujitsu E-5400 USB */
  62         {USB_DEVICE(0x0cde, 0x0006)},   /* Medion 40900, Roper Europe */
  63         {USB_DEVICE(0x0db0, 0x6826)},   /* MSI UB54G (MS-6826) */
  64         {USB_DEVICE(0x107b, 0x55f2)},   /* Gateway WGU-210 (Gemtek) */
  65         {USB_DEVICE(0x124a, 0x4023)},   /* Shuttle PN15, Airvast WM168g, IOGear GWU513 */
  66         {USB_DEVICE(0x1435, 0x0210)},   /* Inventel UR054G */
  67         {USB_DEVICE(0x15a9, 0x0002)},   /* Gemtek WUBI-100GW 802.11g */
  68         {USB_DEVICE(0x1630, 0x0005)},   /* 2Wire 802.11g USB (v1) / Z-Com */
  69         {USB_DEVICE(0x182d, 0x096b)},   /* Sitecom WL-107 */
  70         {USB_DEVICE(0x1915, 0x2234)},   /* Linksys WUSB54G OEM */
  71         {USB_DEVICE(0x1915, 0x2235)},   /* Linksys WUSB54G Portable OEM */
  72         {USB_DEVICE(0x2001, 0x3701)},   /* DLink DWL-G120 Spinnaker */
  73         {USB_DEVICE(0x2001, 0x3703)},   /* DLink DWL-G122 */
  74         {USB_DEVICE(0x2001, 0x3762)},   /* Conceptronic C54U */
  75         {USB_DEVICE(0x5041, 0x2234)},   /* Linksys WUSB54G */
  76         {USB_DEVICE(0x5041, 0x2235)},   /* Linksys WUSB54G Portable */
  77
  78         /* Version 2 devices (3887) */
  79         {USB_DEVICE(0x0471, 0x1230)},   /* Philips CPWUA054/00 */
  80         {USB_DEVICE(0x050d, 0x7050)},   /* Belkin F5D7050 ver 1000 */
  81         {USB_DEVICE(0x0572, 0x2000)},   /* Cohiba Proto board */
  82         {USB_DEVICE(0x0572, 0x2002)},   /* Cohiba Proto board */
  83         {USB_DEVICE(0x06a9, 0x000e)},   /* Westell 802.11g USB (A90-211WG-01) */
  84         {USB_DEVICE(0x06b9, 0x0121)},   /* Thomson SpeedTouch 121g */
  85         {USB_DEVICE(0x0707, 0xee13)},   /* SMC 2862W-G version 2 */
  86         {USB_DEVICE(0x07aa, 0x0020)},   /* Corega WLUSB2GTST USB */
  87         {USB_DEVICE(0x0803, 0x4310)},   /* Zoom 4410a */
  88         {USB_DEVICE(0x083a, 0x4521)},   /* Siemens Gigaset USB Adapter 54 version 2 */
  89         {USB_DEVICE(0x083a, 0x4531)},   /* T-Com Sinus 154 data II */
  90         {USB_DEVICE(0x083a, 0xc501)},   /* Zoom Wireless-G 4410 */
  91         {USB_DEVICE(0x083a, 0xf503)},   /* Accton FD7050E ver 1010ec  */
  92         {USB_DEVICE(0x0846, 0x4240)},   /* Netgear WG111 (v2) */
  93         {USB_DEVICE(0x0915, 0x2000)},   /* Cohiba Proto board */
  94         {USB_DEVICE(0x0915, 0x2002)},   /* Cohiba Proto board */
  95         {USB_DEVICE(0x0baf, 0x0118)},   /* U.S. Robotics U5 802.11g Adapter*/
  96         {USB_DEVICE(0x0bf8, 0x1009)},   /* FUJITSU E-5400 USB D1700*/
  97         /* {USB_DEVICE(0x0cde, 0x0006)}, * Medion MD40900 already listed above,
  98                                          * just noting it here for clarity */
  99         {USB_DEVICE(0x0cde, 0x0008)},   /* Sagem XG703A */
 100         {USB_DEVICE(0x0cde, 0x0015)},   /* Zcomax XG-705A */
 101         {USB_DEVICE(0x0d8e, 0x3762)},   /* DLink DWL-G120 Cohiba */
 102         {USB_DEVICE(0x124a, 0x4025)},   /* IOGear GWU513 (GW3887IK chip) */
 103         {USB_DEVICE(0x1260, 0xee22)},   /* SMC 2862W-G version 2 */
 104         {USB_DEVICE(0x13b1, 0x000a)},   /* Linksys WUSB54G ver 2 */
 105         {USB_DEVICE(0x13B1, 0x000C)},   /* Linksys WUSB54AG */
 106         {USB_DEVICE(0x1413, 0x5400)},   /* Telsey 802.11g USB2.0 Adapter */
 107         {USB_DEVICE(0x1435, 0x0427)},   /* Inventel UR054G */
 108         /* {USB_DEVICE(0x15a9, 0x0002)}, * Also SparkLAN WL-682 with 3887 */
 109         {USB_DEVICE(0x1668, 0x1050)},   /* Actiontec 802UIG-1 */
 110         {USB_DEVICE(0x1740, 0x1000)},   /* Senao NUB-350 */
 111         {USB_DEVICE(0x2001, 0x3704)},   /* DLink DWL-G122 rev A2 */
 112         {USB_DEVICE(0x2001, 0x3705)},   /* D-Link DWL-G120 rev C1 */
 113         {USB_DEVICE(0x413c, 0x5513)},   /* Dell WLA3310 USB Wireless Adapter */
 114         {USB_DEVICE(0x413c, 0x8102)},   /* Spinnaker DUT */
 115         {USB_DEVICE(0x413c, 0x8104)},   /* Cohiba Proto board */
 116         {}
 117 };
 118
 119 MODULE_DEVICE_TABLE(usb, p54u_table);
 120
 121 static const struct {
 122         u32 intf;
 123         enum p54u_hw_type type;
 124         const char *fw;
 125         char hw[20];
 126 } p54u_fwlist[__NUM_P54U_HWTYPES] = {
 127         {
 128                 .type = P54U_NET2280,
 129                 .intf = FW_LM86,
 130                 .fw = "isl3886usb",
 131                 .hw = "ISL3886 + net2280",
 132         },
 133         {
 134                 .type = P54U_3887,
 135                 .intf = FW_LM87,
 136                 .fw = "isl3887usb",
 137                 .hw = "ISL3887",
 138         },
 139 };
 140
 141 static void p54u_rx_cb(struct urb *urb)
 142 {
 143         struct sk_buff *skb = (struct sk_buff *) urb->context;
 144         struct p54u_rx_info *info = (struct p54u_rx_info *)skb->cb;
 145         struct ieee80211_hw *dev = info->dev;
 146         struct p54u_priv *priv = dev->priv;
 147
 148         skb_unlink(skb, &priv->rx_queue);
 149
 150         if (unlikely(urb->status)) {
 151                 dev_kfree_skb_irq(skb);
 152                 return;
 153         }
 154
 155         skb_put(skb, urb->actual_length);
 156
 157         if (priv->hw_type == P54U_NET2280)
 158                 skb_pull(skb, priv->common.tx_hdr_len);
 159         if (priv->common.fw_interface == FW_LM87) {
 160                 skb_pull(skb, 4);
 161                 skb_put(skb, 4);
 162         }
 163
 164         if (p54_rx(dev, skb)) {
 165                 skb = dev_alloc_skb(priv->common.rx_mtu + 32);
 166                 if (unlikely(!skb)) {
 167                         /* TODO check rx queue length and refill *somewhere* */
 168                         return;
 169                 }
 170
 171                 info = (struct p54u_rx_info *) skb->cb;
 172                 info->urb = urb;
 173                 info->dev = dev;
 174                 urb->transfer_buffer = skb_tail_pointer(skb);
 175                 urb->context = skb;
 176         } else {
 177                 if (priv->hw_type == P54U_NET2280)
 178                         skb_push(skb, priv->common.tx_hdr_len);
 179                 if (priv->common.fw_interface == FW_LM87) {
 180                         skb_push(skb, 4);
 181                         skb_put(skb, 4);
 182                 }
 183                 skb_reset_tail_pointer(skb);
 184                 skb_trim(skb, 0);
 185                 urb->transfer_buffer = skb_tail_pointer(skb);
 186         }
 187         skb_queue_tail(&priv->rx_queue, skb);
 188         usb_anchor_urb(urb, &priv->submitted);
 189         if (usb_submit_urb(urb, GFP_ATOMIC)) {
 190                 skb_unlink(skb, &priv->rx_queue);
 191                 usb_unanchor_urb(urb);
 192                 dev_kfree_skb_irq(skb);
 193         }
 194 }
 195
 196 static void p54u_tx_cb(struct urb *urb)
 197 {
 198         struct sk_buff *skb = urb->context;
 199         struct ieee80211_hw *dev =
 200                 usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
 201
 202         p54_free_skb(dev, skb);
 203 }
 204
 205 static void p54u_tx_dummy_cb(struct urb *urb) { }
 206
 207 static void p54u_free_urbs(struct ieee80211_hw *dev)
 208 {
 209         struct p54u_priv *priv = dev->priv;
 210         usb_kill_anchored_urbs(&priv->submitted);
 211 }
 212
 213 static void p54u_stop(struct ieee80211_hw *dev)
 214 {
 215         /*
 216          * TODO: figure out how to reliably stop the 3887 and net2280 so
 217          * the hardware is still usable next time we want to start it.
 218          * until then, we just stop listening to the hardware..
 219          */
 220         p54u_free_urbs(dev);
 221 }
 222
 223 static int p54u_init_urbs(struct ieee80211_hw *dev)
 224 {
 225         struct p54u_priv *priv = dev->priv;
 226         struct urb *entry = NULL;
 227         struct sk_buff *skb;
 228         struct p54u_rx_info *info;
 229         int ret = 0;
 230
 231         while (skb_queue_len(&priv->rx_queue) < 32) {
 232                 skb = __dev_alloc_skb(priv->common.rx_mtu + 32, GFP_KERNEL);
 233                 if (!skb) {
 234                         ret = -ENOMEM;
 235                         goto err;
 236                 }
 237                 entry = usb_alloc_urb(0, GFP_KERNEL);
 238                 if (!entry) {
 239                         ret = -ENOMEM;
 240                         goto err;
 241                 }
 242
 243                 usb_fill_bulk_urb(entry, priv->udev,
 244                                   usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA),
 245                                   skb_tail_pointer(skb),
 246                                   priv->common.rx_mtu + 32, p54u_rx_cb, skb);
 247                 info = (struct p54u_rx_info *) skb->cb;
 248                 info->urb = entry;
 249                 info->dev = dev;
 250                 skb_queue_tail(&priv->rx_queue, skb);
 251
 252                 usb_anchor_urb(entry, &priv->submitted);
 253                 ret = usb_submit_urb(entry, GFP_KERNEL);
 254                 if (ret) {
 255                         skb_unlink(skb, &priv->rx_queue);
 256                         usb_unanchor_urb(entry);
 257                         goto err;
 258                 }
 259                 usb_free_urb(entry);
 260                 entry = NULL;
 261         }
 262
 263         return 0;
 264
 265  err:
 266         usb_free_urb(entry);
 267         kfree_skb(skb);
 268         p54u_free_urbs(dev);
 269         return ret;
 270 }
 271
 272 static int p54u_open(struct ieee80211_hw *dev)
 273 {
 274         /*
 275          * TODO: Because we don't know how to reliably stop the 3887 and
 276          * the isl3886+net2280, other than brutally cut off all
 277          * communications. We have to reinitialize the urbs on every start.
 278          */
 279         return p54u_init_urbs(dev);
 280 }
 281
 282 static __le32 p54u_lm87_chksum(const __le32 *data, size_t length)
 283 {
 284         u32 chk = 0;
 285
 286         length >>= 2;
 287         while (length--) {
 288                 chk ^= le32_to_cpu(*data++);
 289                 chk = (chk >> 5) ^ (chk << 3);
 290         }
 291
 292         return cpu_to_le32(chk);
 293 }
 294
 295 static void p54u_tx_lm87(struct ieee80211_hw *dev, struct sk_buff *skb)
 296 {
 297         struct p54u_priv *priv = dev->priv;
 298         struct urb *data_urb;
 299         struct lm87_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr);
 300
 301         data_urb = usb_alloc_urb(0, GFP_ATOMIC);
 302         if (!data_urb) {
 303                 p54_free_skb(dev, skb);
 304                 return;
 305         }
 306
 307         hdr->chksum = p54u_lm87_chksum((__le32 *)skb->data, skb->len);
 308         hdr->device_addr = ((struct p54_hdr *)skb->data)->req_id;
 309
 310         usb_fill_bulk_urb(data_urb, priv->udev,
 311                           usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
 312                           hdr, skb->len + sizeof(*hdr),  FREE_AFTER_TX(skb) ?
 313                           p54u_tx_cb : p54u_tx_dummy_cb, skb);
 314         data_urb->transfer_flags |= URB_ZERO_PACKET;
 315
 316         usb_anchor_urb(data_urb, &priv->submitted);
 317         if (usb_submit_urb(data_urb, GFP_ATOMIC)) {
 318                 usb_unanchor_urb(data_urb);
 319                 p54_free_skb(dev, skb);
 320         }
 321         usb_free_urb(data_urb);
 322 }
 323
 324 static void p54u_tx_net2280(struct ieee80211_hw *dev, struct sk_buff *skb)
 325 {
 326         struct p54u_priv *priv = dev->priv;
 327         struct urb *int_urb = NULL, *data_urb = NULL;
 328         struct net2280_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr);
 329         struct net2280_reg_write *reg = NULL;
 330         int err = -ENOMEM;
 331
 332         reg = kmalloc(sizeof(*reg), GFP_ATOMIC);
 333         if (!reg)
 334                 goto out;
 335
 336         int_urb = usb_alloc_urb(0, GFP_ATOMIC);
 337         if (!int_urb)
 338                 goto out;
 339
 340         data_urb = usb_alloc_urb(0, GFP_ATOMIC);
 341         if (!data_urb)
 342                 goto out;
 343
 344         reg->port = cpu_to_le16(NET2280_DEV_U32);
 345         reg->addr = cpu_to_le32(P54U_DEV_BASE);
 346         reg->val = cpu_to_le32(ISL38XX_DEV_INT_DATA);
 347
 348         memset(hdr, 0, sizeof(*hdr));
 349         hdr->len = cpu_to_le16(skb->len);
 350         hdr->device_addr = ((struct p54_hdr *) skb->data)->req_id;
 351
 352         usb_fill_bulk_urb(int_urb, priv->udev,
 353                 usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV), reg, sizeof(*reg),
 354                 p54u_tx_dummy_cb, dev);
 355
 356         /*
 357          * URB_FREE_BUFFER triggers a code path in the USB subsystem that will
 358          * free what is inside the transfer_buffer after the last reference to
 359          * the int_urb is dropped.
 360          */
 361         int_urb->transfer_flags |= URB_FREE_BUFFER | URB_ZERO_PACKET;
 362         reg = NULL;
 363
 364         usb_fill_bulk_urb(data_urb, priv->udev,
 365                           usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
 366                           hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ?
 367                           p54u_tx_cb : p54u_tx_dummy_cb, skb);
 368         data_urb->transfer_flags |= URB_ZERO_PACKET;
 369
 370         usb_anchor_urb(int_urb, &priv->submitted);
 371         err = usb_submit_urb(int_urb, GFP_ATOMIC);
 372         if (err) {
 373                 usb_unanchor_urb(int_urb);
 374                 goto out;
 375         }
 376
 377         usb_anchor_urb(data_urb, &priv->submitted);
 378         err = usb_submit_urb(data_urb, GFP_ATOMIC);
 379         if (err) {
 380                 usb_unanchor_urb(data_urb);
 381                 goto out;
 382         }
 383 out:
 384         usb_free_urb(int_urb);
 385         usb_free_urb(data_urb);
 386
 387         if (err) {
 388                 kfree(reg);
 389                 p54_free_skb(dev, skb);
 390         }
 391 }
 392
 393 static int p54u_write(struct p54u_priv *priv,
 394                       struct net2280_reg_write *buf,
 395                       enum net2280_op_type type,
 396                       __le32 addr, __le32 val)
 397 {
 398         unsigned int ep;
 399         int alen;
 400
 401         if (type & 0x0800)
 402                 ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV);
 403         else
 404                 ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_BRG);
 405
 406         buf->port = cpu_to_le16(type);
 407         buf->addr = addr;
 408         buf->val = val;
 409
 410         return usb_bulk_msg(priv->udev, ep, buf, sizeof(*buf), &alen, 1000);
 411 }
 412
 413 static int p54u_read(struct p54u_priv *priv, void *buf,
 414                      enum net2280_op_type type,
 415                      __le32 addr, __le32 *val)
 416 {
 417         struct net2280_reg_read *read = buf;
 418         __le32 *reg = buf;
 419         unsigned int ep;
 420         int alen, err;
 421
 422         if (type & 0x0800)
 423                 ep = P54U_PIPE_DEV;
 424         else
 425                 ep = P54U_PIPE_BRG;
 426
 427         read->port = cpu_to_le16(type);
 428         read->addr = addr;
 429
 430         err = usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep),
 431                            read, sizeof(*read), &alen, 1000);
 432         if (err)
 433                 return err;
 434
 435         err = usb_bulk_msg(priv->udev, usb_rcvbulkpipe(priv->udev, ep),
 436                            reg, sizeof(*reg), &alen, 1000);
 437         if (err)
 438                 return err;
 439
 440         *val = *reg;
 441         return 0;
 442 }
 443
 444 static int p54u_bulk_msg(struct p54u_priv *priv, unsigned int ep,
 445                          void *data, size_t len)
 446 {
 447         int alen;
 448         return usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep),
 449                             data, len, &alen, 2000);
 450 }
 451
 452 static int p54u_device_reset(struct ieee80211_hw *dev)
 453 {
 454         struct p54u_priv *priv = dev->priv;
 455         int ret, lock = (priv->intf->condition != USB_INTERFACE_BINDING);
 456
 457         if (lock) {
 458                 ret = usb_lock_device_for_reset(priv->udev, priv->intf);
 459                 if (ret < 0) {
 460                         dev_err(&priv->udev->dev, "(p54usb) unable to lock "
 461                                 "device for reset (%d)!\n", ret);
 462                         return ret;
 463                 }
 464         }
 465
 466         ret = usb_reset_device(priv->udev);
 467         if (lock)
 468                 usb_unlock_device(priv->udev);
 469
 470         if (ret)
 471                 dev_err(&priv->udev->dev, "(p54usb) unable to reset "
 472                         "device (%d)!\n", ret);
 473
 474         return ret;
 475 }
 476
 477 static const char p54u_romboot_3887[] = "~~~~";
 478 static int p54u_firmware_reset_3887(struct ieee80211_hw *dev)
 479 {
 480         struct p54u_priv *priv = dev->priv;
 481         u8 *buf;
 482         int ret;
 483
 484         buf = kmemdup(p54u_romboot_3887, 4, GFP_KERNEL);
 485         if (!buf)
 486                 return -ENOMEM;
 487         ret = p54u_bulk_msg(priv, P54U_PIPE_DATA,
 488                             buf, 4);
 489         kfree(buf);
 490         if (ret)
 491                 dev_err(&priv->udev->dev, "(p54usb) unable to jump to "
 492                         "boot ROM (%d)!\n", ret);
 493
 494         return ret;
 495 }
 496
 497 static const char p54u_firmware_upload_3887[] = "<\r";
 498 static int p54u_upload_firmware_3887(struct ieee80211_hw *dev)
 499 {
 500         struct p54u_priv *priv = dev->priv;
 501         int err, alen;
 502         u8 carry = 0;
 503         u8 *buf, *tmp;
 504         const u8 *data;
 505         unsigned int left, remains, block_size;
 506         struct x2_header *hdr;
 507         unsigned long timeout;
 508
 509         err = p54u_firmware_reset_3887(dev);
 510         if (err)
 511                 return err;
 512
 513         tmp = buf = kmalloc(P54U_FW_BLOCK, GFP_KERNEL);
 514         if (!buf)
 515                 return -ENOMEM;
 516
 517         left = block_size = min((size_t)P54U_FW_BLOCK, priv->fw->size);
 518         strcpy(buf, p54u_firmware_upload_3887);
 519         left -= strlen(p54u_firmware_upload_3887);
 520         tmp += strlen(p54u_firmware_upload_3887);
 521
 522         data = priv->fw->data;
 523         remains = priv->fw->size;
 524
 525         hdr = (struct x2_header *)(buf + strlen(p54u_firmware_upload_3887));
 526         memcpy(hdr->signature, X2_SIGNATURE, X2_SIGNATURE_SIZE);
 527         hdr->fw_load_addr = cpu_to_le32(ISL38XX_DEV_FIRMWARE_ADDR);
 528         hdr->fw_length = cpu_to_le32(priv->fw->size);
 529         hdr->crc = cpu_to_le32(~crc32_le(~0, (void *)&hdr->fw_load_addr,
 530                                          sizeof(u32)*2));
 531         left -= sizeof(*hdr);
 532         tmp += sizeof(*hdr);
 533
 534         while (remains) {
 535                 while (left--) {
 536                         if (carry) {
 537                                 *tmp++ = carry;
 538                                 carry = 0;
 539                                 remains--;
 540                                 continue;
 541                         }
 542                         switch (*data) {
 543                         case '~':
 544                                 *tmp++ = '}';
 545                                 carry = '^';
 546                                 break;
 547                         case '}':
 548                                 *tmp++ = '}';
 549                                 carry = ']';
 550                                 break;
 551                         default:
 552                                 *tmp++ = *data;
 553                                 remains--;
 554                                 break;
 555                         }
 556                         data++;
 557                 }
 558
 559                 err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_size);
 560                 if (err) {
 561                         dev_err(&priv->udev->dev, "(p54usb) firmware "
 562                                                   "upload failed!\n");
 563                         goto err_upload_failed;
 564                 }
 565
 566                 tmp = buf;
 567                 left = block_size = min((unsigned int)P54U_FW_BLOCK, remains);
 568         }
 569
 570         *((__le32 *)buf) = cpu_to_le32(~crc32_le(~0, priv->fw->data,
 571                                                  priv->fw->size));
 572         err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, sizeof(u32));
 573         if (err) {
 574                 dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n");
 575                 goto err_upload_failed;
 576         }
 577         timeout = jiffies + msecs_to_jiffies(1000);
 578         while (!(err = usb_bulk_msg(priv->udev,
 579                 usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) {
 580                 if (alen > 2 && !memcmp(buf, "OK", 2))
 581                         break;
 582
 583                 if (alen > 5 && !memcmp(buf, "ERROR", 5)) {
 584                         err = -EINVAL;
 585                         break;
 586                 }
 587
 588                 if (time_after(jiffies, timeout)) {
 589                         dev_err(&priv->udev->dev, "(p54usb) firmware boot "
 590                                                   "timed out!\n");
 591                         err = -ETIMEDOUT;
 592                         break;
 593                 }
 594         }
 595         if (err) {
 596                 dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n");
 597                 goto err_upload_failed;
 598         }
 599
 600         buf[0] = 'g';
 601         buf[1] = '\r';
 602         err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, 2);
 603         if (err) {
 604                 dev_err(&priv->udev->dev, "(p54usb) firmware boot failed!\n");
 605                 goto err_upload_failed;
 606         }
 607
 608         timeout = jiffies + msecs_to_jiffies(1000);
 609         while (!(err = usb_bulk_msg(priv->udev,
 610                 usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) {
 611                 if (alen > 0 && buf[0] == 'g')
 612                         break;
 613
 614                 if (time_after(jiffies, timeout)) {
 615                         err = -ETIMEDOUT;
 616                         break;
 617                 }
 618         }
 619         if (err)
 620                 goto err_upload_failed;
 621
 622 err_upload_failed:
 623         kfree(buf);
 624         return err;
 625 }
 626
 627 static int p54u_upload_firmware_net2280(struct ieee80211_hw *dev)
 628 {
 629         struct p54u_priv *priv = dev->priv;
 630         const struct p54p_csr *devreg = (const struct p54p_csr *) P54U_DEV_BASE;
 631         int err, alen;
 632         void *buf;
 633         __le32 reg;
 634         unsigned int remains, offset;
 635         const u8 *data;
 636
 637         buf = kmalloc(512, GFP_KERNEL);
 638         if (!buf)
 639                 return -ENOMEM;
 640
 641 #define P54U_WRITE(type, addr, data) \
 642         do {\
 643                 err = p54u_write(priv, buf, type,\
 644                                  cpu_to_le32((u32)(unsigned long)addr), data);\
 645                 if (err) \
 646                         goto fail;\
 647         } while (0)
 648
 649 #define P54U_READ(type, addr) \
 650         do {\
 651                 err = p54u_read(priv, buf, type,\
 652                                 cpu_to_le32((u32)(unsigned long)addr), &reg);\
 653                 if (err)\
 654                         goto fail;\
 655         } while (0)
 656
 657         /* power down net2280 bridge */
 658         P54U_READ(NET2280_BRG_U32, NET2280_GPIOCTL);
 659         reg |= cpu_to_le32(P54U_BRG_POWER_DOWN);
 660         reg &= cpu_to_le32(~P54U_BRG_POWER_UP);
 661         P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg);
 662
 663         mdelay(100);
 664
 665         /* power up bridge */
 666         reg |= cpu_to_le32(P54U_BRG_POWER_UP);
 667         reg &= cpu_to_le32(~P54U_BRG_POWER_DOWN);
 668         P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg);
 669
 670         mdelay(100);
 671
 672         P54U_WRITE(NET2280_BRG_U32, NET2280_DEVINIT,
 673                    cpu_to_le32(NET2280_CLK_30Mhz |
 674                                NET2280_PCI_ENABLE |
 675                                NET2280_PCI_SOFT_RESET));
 676
 677         mdelay(20);
 678
 679         P54U_WRITE(NET2280_BRG_CFG_U16, PCI_COMMAND,
 680                    cpu_to_le32(PCI_COMMAND_MEMORY |
 681                                PCI_COMMAND_MASTER));
 682
 683         P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_0,
 684                    cpu_to_le32(NET2280_BASE));
 685
 686         P54U_READ(NET2280_BRG_CFG_U16, PCI_STATUS);
 687         reg |= cpu_to_le32(PCI_STATUS_REC_MASTER_ABORT);
 688         P54U_WRITE(NET2280_BRG_CFG_U16, PCI_STATUS, reg);
 689
 690         // TODO: we really need this?
 691         P54U_READ(NET2280_BRG_U32, NET2280_RELNUM);
 692
 693         P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_RSP,
 694                    cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE));
 695         P54U_WRITE(NET2280_BRG_U32, NET2280_EPC_RSP,
 696                    cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE));
 697
 698         P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_2,
 699                    cpu_to_le32(NET2280_BASE2));
 700
 701         /* finally done setting up the bridge */
 702
 703         P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | PCI_COMMAND,
 704                    cpu_to_le32(PCI_COMMAND_MEMORY |
 705                                PCI_COMMAND_MASTER));
 706
 707         P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | 0x40 /* TRDY timeout */, 0);
 708         P54U_WRITE(NET2280_DEV_CFG_U32, 0x10000 | PCI_BASE_ADDRESS_0,
 709                    cpu_to_le32(P54U_DEV_BASE));
 710
 711         P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0);
 712         P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
 713                    cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
 714
 715         /* do romboot */
 716         P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable, 0);
 717
 718         P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat);
 719         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
 720         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RAMBOOT);
 721         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN);
 722         P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
 723
 724         mdelay(20);
 725
 726         reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET);
 727         P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
 728
 729         mdelay(20);
 730
 731         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
 732         P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
 733
 734         mdelay(100);
 735
 736         P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
 737         P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
 738
 739         /* finally, we can upload firmware now! */
 740         remains = priv->fw->size;
 741         data = priv->fw->data;
 742         offset = ISL38XX_DEV_FIRMWARE_ADDR;
 743
 744         while (remains) {
 745                 unsigned int block_len = min(remains, (unsigned int)512);
 746                 memcpy(buf, data, block_len);
 747
 748                 err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_len);
 749                 if (err) {
 750                         dev_err(&priv->udev->dev, "(p54usb) firmware block "
 751                                                   "upload failed\n");
 752                         goto fail;
 753                 }
 754
 755                 P54U_WRITE(NET2280_DEV_U32, &devreg->direct_mem_base,
 756                            cpu_to_le32(0xc0000f00));
 757
 758                 P54U_WRITE(NET2280_DEV_U32,
 759                            0x0020 | (unsigned long)&devreg->direct_mem_win, 0);
 760                 P54U_WRITE(NET2280_DEV_U32,
 761                            0x0020 | (unsigned long)&devreg->direct_mem_win,
 762                            cpu_to_le32(1));
 763
 764                 P54U_WRITE(NET2280_DEV_U32,
 765                            0x0024 | (unsigned long)&devreg->direct_mem_win,
 766                            cpu_to_le32(block_len));
 767                 P54U_WRITE(NET2280_DEV_U32,
 768                            0x0028 | (unsigned long)&devreg->direct_mem_win,
 769                            cpu_to_le32(offset));
 770
 771                 P54U_WRITE(NET2280_DEV_U32, &devreg->dma_addr,
 772                            cpu_to_le32(NET2280_EPA_FIFO_PCI_ADDR));
 773                 P54U_WRITE(NET2280_DEV_U32, &devreg->dma_len,
 774                            cpu_to_le32(block_len >> 2));
 775                 P54U_WRITE(NET2280_DEV_U32, &devreg->dma_ctrl,
 776                            cpu_to_le32(ISL38XX_DMA_MASTER_CONTROL_TRIGGER));
 777
 778                 mdelay(10);
 779
 780                 P54U_READ(NET2280_DEV_U32,
 781                           0x002C | (unsigned long)&devreg->direct_mem_win);
 782                 if (!(reg & cpu_to_le32(ISL38XX_DMA_STATUS_DONE)) ||
 783                     !(reg & cpu_to_le32(ISL38XX_DMA_STATUS_READY))) {
 784                         dev_err(&priv->udev->dev, "(p54usb) firmware DMA "
 785                                                   "transfer failed\n");
 786                         goto fail;
 787                 }
 788
 789                 P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_STAT,
 790                            cpu_to_le32(NET2280_FIFO_FLUSH));
 791
 792                 remains -= block_len;
 793                 data += block_len;
 794                 offset += block_len;
 795         }
 796
 797         /* do ramboot */
 798         P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat);
 799         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
 800         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN);
 801         reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RAMBOOT);
 802         P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
 803
 804         mdelay(20);
 805
 806         reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET);
 807         P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
 808
 809         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
 810         P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
 811
 812         mdelay(100);
 813
 814         P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
 815         P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
 816
 817         /* start up the firmware */
 818         P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable,
 819                    cpu_to_le32(ISL38XX_INT_IDENT_INIT));
 820
 821         P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
 822                    cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
 823
 824         P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1,
 825                    cpu_to_le32(NET2280_PCI_INTA_INTERRUPT_ENABLE |
 826                                NET2280_USB_INTERRUPT_ENABLE));
 827
 828         P54U_WRITE(NET2280_DEV_U32, &devreg->dev_int,
 829                    cpu_to_le32(ISL38XX_DEV_INT_RESET));
 830
 831         err = usb_interrupt_msg(priv->udev,
 832                                 usb_rcvbulkpipe(priv->udev, P54U_PIPE_INT),
 833                                 buf, sizeof(__le32), &alen, 1000);
 834         if (err || alen != sizeof(__le32))
 835                 goto fail;
 836
 837         P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
 838         P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
 839
 840         if (!(reg & cpu_to_le32(ISL38XX_INT_IDENT_INIT)))
 841                 err = -EINVAL;
 842
 843         P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0);
 844         P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
 845                    cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
 846
 847 #undef P54U_WRITE
 848 #undef P54U_READ
 849
 850 fail:
 851         kfree(buf);
 852         return err;
 853 }
 854
 855 static int p54_find_type(struct p54u_priv *priv)
 856 {
 857         int i;
 858
 859         for (i = 0; i < __NUM_P54U_HWTYPES; i++)
 860                 if (p54u_fwlist[i].type == priv->hw_type)
 861                         break;
 862         if (i == __NUM_P54U_HWTYPES)
 863                 return -EOPNOTSUPP;
 864
 865         return i;
 866 }
 867
 868 static int p54u_start_ops(struct p54u_priv *priv)
 869 {
 870         struct ieee80211_hw *dev = priv->common.hw;
 871         int ret;
 872
 873         ret = p54_parse_firmware(dev, priv->fw);
 874         if (ret)
 875                 goto err_out;
 876
 877         ret = p54_find_type(priv);
 878         if (ret < 0)
 879                 goto err_out;
 880
 881         if (priv->common.fw_interface != p54u_fwlist[ret].intf) {
 882                 dev_err(&priv->udev->dev, "wrong firmware, please get "
 883                         "a firmware for \"%s\" and try again.\n",
 884                         p54u_fwlist[ret].hw);
 885                 ret = -ENODEV;
 886                 goto err_out;
 887         }
 888
 889         ret = priv->upload_fw(dev);
 890         if (ret)
 891                 goto err_out;
 892
 893         ret = p54u_open(dev);
 894         if (ret)
 895                 goto err_out;
 896
 897         ret = p54_read_eeprom(dev);
 898         if (ret)
 899                 goto err_stop;
 900
 901         p54u_stop(dev);
 902
 903         ret = p54_register_common(dev, &priv->udev->dev);
 904         if (ret)
 905                 goto err_stop;
 906
 907         return 0;
 908
 909 err_stop:
 910         p54u_stop(dev);
 911
 912 err_out:
 913         /*
 914          * p54u_disconnect will do the rest of the
 915          * cleanup
 916          */
 917         return ret;
 918 }
 919
 920 static void p54u_load_firmware_cb(const struct firmware *firmware,
 921                                   void *context)
 922 {
 923         struct p54u_priv *priv = context;
 924         struct usb_device *udev = priv->udev;
 925         int err;
 926
 927         complete(&priv->fw_wait_load);
 928         if (firmware) {
 929                 priv->fw = firmware;
 930                 err = p54u_start_ops(priv);
 931         } else {
 932                 err = -ENOENT;
 933                 dev_err(&udev->dev, "Firmware not found.\n");
 934         }
 935
 936         if (err) {
 937                 struct device *parent = priv->udev->dev.parent;
 938
 939                 dev_err(&udev->dev, "failed to initialize device (%d)\n", err);
 940
 941                 if (parent)
 942                         device_lock(parent);
 943
 944                 device_release_driver(&udev->dev);
 945                 /*
 946                  * At this point p54u_disconnect has already freed
 947                  * the "priv" context. Do not use it anymore!
 948                  */
 949                 priv = NULL;
 950
 951                 if (parent)
 952                         device_unlock(parent);
 953         }
 954
 955         usb_put_dev(udev);
 956 }
 957
 958 static int p54u_load_firmware(struct ieee80211_hw *dev,
 959                               struct usb_interface *intf)
 960 {
 961         struct usb_device *udev = interface_to_usbdev(intf);
 962         struct p54u_priv *priv = dev->priv;
 963         struct device *device = &udev->dev;
 964         int err, i;
 965
 966         BUILD_BUG_ON(ARRAY_SIZE(p54u_fwlist) != __NUM_P54U_HWTYPES);
 967
 968         init_completion(&priv->fw_wait_load);
 969         i = p54_find_type(priv);
 970         if (i < 0)
 971                 return i;
 972
 973         dev_info(&priv->udev->dev, "Loading firmware file %s\n",
 974                p54u_fwlist[i].fw);
 975
 976         usb_get_dev(udev);
 977         err = request_firmware_nowait(THIS_MODULE, 1, p54u_fwlist[i].fw,
 978                                       device, GFP_KERNEL, priv,
 979                                       p54u_load_firmware_cb);
 980         if (err) {
 981                 dev_err(&priv->udev->dev, "(p54usb) cannot load firmware %s "
 982                                           "(%d)!\n", p54u_fwlist[i].fw, err);
 983         }
 984
 985         return err;
 986 }
 987
 988 static int p54u_probe(struct usb_interface *intf,
 989                                 const struct usb_device_id *id)
 990 {
 991         struct usb_device *udev = interface_to_usbdev(intf);
 992         struct ieee80211_hw *dev;
 993         struct p54u_priv *priv;
 994         int err;
 995         unsigned int i, recognized_pipes;
 996
 997         dev = p54_init_common(sizeof(*priv));
 998
 999         if (!dev) {
1000                 dev_err(&udev->dev, "(p54usb) ieee80211 alloc failed\n");
1001                 return -ENOMEM;
1002         }
1003
1004         priv = dev->priv;
1005         priv->hw_type = P54U_INVALID_HW;
1006
1007         SET_IEEE80211_DEV(dev, &intf->dev);
1008         usb_set_intfdata(intf, dev);
1009         priv->udev = udev;
1010         priv->intf = intf;
1011         skb_queue_head_init(&priv->rx_queue);
1012         init_usb_anchor(&priv->submitted);
1013
1014         usb_get_dev(udev);
1015
1016         /* really lazy and simple way of figuring out if we're a 3887 */
1017         /* TODO: should just stick the identification in the device table */
1018         i = intf->altsetting->desc.bNumEndpoints;
1019         recognized_pipes = 0;
1020         while (i--) {
1021                 switch (intf->altsetting->endpoint[i].desc.bEndpointAddress) {
1022                 case P54U_PIPE_DATA:
1023                 case P54U_PIPE_MGMT:
1024                 case P54U_PIPE_BRG:
1025                 case P54U_PIPE_DEV:
1026                 case P54U_PIPE_DATA | USB_DIR_IN:
1027                 case P54U_PIPE_MGMT | USB_DIR_IN:
1028                 case P54U_PIPE_BRG | USB_DIR_IN:
1029                 case P54U_PIPE_DEV | USB_DIR_IN:
1030                 case P54U_PIPE_INT | USB_DIR_IN:
1031                         recognized_pipes++;
1032                 }
1033         }
1034         priv->common.open = p54u_open;
1035         priv->common.stop = p54u_stop;
1036         if (recognized_pipes < P54U_PIPE_NUMBER) {
1037 #ifdef CONFIG_PM
1038                 /* ISL3887 needs a full reset on resume */
1039                 udev->reset_resume = 1;
1040 #endif /* CONFIG_PM */
1041                 err = p54u_device_reset(dev);
1042
1043                 priv->hw_type = P54U_3887;
1044                 dev->extra_tx_headroom += sizeof(struct lm87_tx_hdr);
1045                 priv->common.tx_hdr_len = sizeof(struct lm87_tx_hdr);
1046                 priv->common.tx = p54u_tx_lm87;
1047                 priv->upload_fw = p54u_upload_firmware_3887;
1048         } else {
1049                 priv->hw_type = P54U_NET2280;
1050                 dev->extra_tx_headroom += sizeof(struct net2280_tx_hdr);
1051                 priv->common.tx_hdr_len = sizeof(struct net2280_tx_hdr);
1052                 priv->common.tx = p54u_tx_net2280;
1053                 priv->upload_fw = p54u_upload_firmware_net2280;
1054         }
1055         err = p54u_load_firmware(dev, intf);
1056         return err;
1057 }
1058
1059 static void p54u_disconnect(struct usb_interface *intf)
1060 {
1061         struct ieee80211_hw *dev = usb_get_intfdata(intf);
1062         struct p54u_priv *priv;
1063
1064         if (!dev)
1065                 return;
1066
1067         priv = dev->priv;
1068         wait_for_completion(&priv->fw_wait_load);
1069         p54_unregister_common(dev);
1070
1071         usb_put_dev(interface_to_usbdev(intf));
1072         release_firmware(priv->fw);
1073         p54_free_common(dev);
1074 }
1075
1076 static int p54u_pre_reset(struct usb_interface *intf)
1077 {
1078         struct ieee80211_hw *dev = usb_get_intfdata(intf);
1079
1080         if (!dev)
1081                 return -ENODEV;
1082
1083         p54u_stop(dev);
1084         return 0;
1085 }
1086
1087 static int p54u_resume(struct usb_interface *intf)
1088 {
1089         struct ieee80211_hw *dev = usb_get_intfdata(intf);
1090         struct p54u_priv *priv;
1091
1092         if (!dev)
1093                 return -ENODEV;
1094
1095         priv = dev->priv;
1096         if (unlikely(!(priv->upload_fw && priv->fw)))
1097                 return 0;
1098
1099         return priv->upload_fw(dev);
1100 }
1101
1102 static int p54u_post_reset(struct usb_interface *intf)
1103 {
1104         struct ieee80211_hw *dev = usb_get_intfdata(intf);
1105         struct p54u_priv *priv;
1106         int err;
1107
1108         err = p54u_resume(intf);
1109         if (err)
1110                 return err;
1111
1112         /* reinitialize old device state */
1113         priv = dev->priv;
1114         if (priv->common.mode != NL80211_IFTYPE_UNSPECIFIED)
1115                 ieee80211_restart_hw(dev);
1116
1117         return 0;
1118 }
1119
1120 #ifdef CONFIG_PM
1121
1122 static int p54u_suspend(struct usb_interface *intf, pm_message_t message)
1123 {
1124         return p54u_pre_reset(intf);
1125 }
1126
1127 #endif /* CONFIG_PM */
1128
1129 static struct usb_driver p54u_driver = {
1130         .name   = "p54usb",
1131         .id_table = p54u_table,
1132         .probe = p54u_probe,
1133         .disconnect = p54u_disconnect,
1134         .pre_reset = p54u_pre_reset,
1135         .post_reset = p54u_post_reset,
1136 #ifdef CONFIG_PM
1137         .suspend = p54u_suspend,
1138         .resume = p54u_resume,
1139         .reset_resume = p54u_resume,
1140 #endif /* CONFIG_PM */
1141         .soft_unbind = 1,
1142         .disable_hub_initiated_lpm = 1,
1143 };
1144
1145 module_usb_driver(p54u_driver);