drivers/net/wireless/intersil/p54/p54usb.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2
   3 /*
   4  * Linux device driver for USB based Prism54
   5  *
   6  * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
   7  *
   8  * Based on the islsm (softmac prism54) driver, which is:
   9  * Copyright 2004-2006 Jean-Baptiste Note <jbnote@gmail.com>, et al.
  10  */
  11
  12 #include <linux/usb.h>
  13 #include <linux/pci.h>
  14 #include <linux/slab.h>
  15 #include <linux/firmware.h>
  16 #include <linux/etherdevice.h>
  17 #include <linux/delay.h>
  18 #include <linux/crc32.h>
  19 #include <linux/module.h>
  20 #include <net/mac80211.h>
  21
  22 #include "p54.h"
  23 #include "lmac.h"
  24 #include "p54usb.h"
  25
  26 MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
  27 MODULE_DESCRIPTION("Prism54 USB wireless driver");
  28 MODULE_LICENSE("GPL");
  29 MODULE_ALIAS("prism54usb");
  30 MODULE_FIRMWARE("isl3886usb");
  31 MODULE_FIRMWARE("isl3887usb");
  32
  33 /*
  34  * Note:
  35  *
  36  * Always update our wiki's device list (located at:
  37  * http://wireless.kernel.org/en/users/Drivers/p54/devices ),
  38  * whenever you add a new device.
  39  */
  40
  41 static const struct usb_device_id p54u_table[] = {
  42         /* Version 1 devices (pci chip + net2280) */
  43         {USB_DEVICE(0x0411, 0x0050)},   /* Buffalo WLI2-USB2-G54 */
  44         {USB_DEVICE(0x045e, 0x00c2)},   /* Microsoft MN-710 */
  45         {USB_DEVICE(0x0506, 0x0a11)},   /* 3COM 3CRWE254G72 */
  46         {USB_DEVICE(0x0675, 0x0530)},   /* DrayTek Vigor 530 */
  47         {USB_DEVICE(0x06b9, 0x0120)},   /* Thomson SpeedTouch 120g */
  48         {USB_DEVICE(0x0707, 0xee06)},   /* SMC 2862W-G */
  49         {USB_DEVICE(0x07aa, 0x001c)},   /* Corega CG-WLUSB2GT */
  50         {USB_DEVICE(0x083a, 0x4501)},   /* Accton 802.11g WN4501 USB */
  51         {USB_DEVICE(0x083a, 0x4502)},   /* Siemens Gigaset USB Adapter */
  52         {USB_DEVICE(0x083a, 0x5501)},   /* Phillips CPWUA054 */
  53         {USB_DEVICE(0x0846, 0x4200)},   /* Netgear WG121 */
  54         {USB_DEVICE(0x0846, 0x4210)},   /* Netgear WG121 the second ? */
  55         {USB_DEVICE(0x0846, 0x4220)},   /* Netgear WG111 */
  56         {USB_DEVICE(0x09aa, 0x1000)},   /* Spinnaker Proto board */
  57         {USB_DEVICE(0x0bf8, 0x1007)},   /* Fujitsu E-5400 USB */
  58         {USB_DEVICE(0x0cde, 0x0006)},   /* Medion 40900, Roper Europe */
  59         {USB_DEVICE(0x0db0, 0x6826)},   /* MSI UB54G (MS-6826) */
  60         {USB_DEVICE(0x107b, 0x55f2)},   /* Gateway WGU-210 (Gemtek) */
  61         {USB_DEVICE(0x124a, 0x4023)},   /* Shuttle PN15, Airvast WM168g, IOGear GWU513 */
  62         {USB_DEVICE(0x1435, 0x0210)},   /* Inventel UR054G */
  63         {USB_DEVICE(0x15a9, 0x0002)},   /* Gemtek WUBI-100GW 802.11g */
  64         {USB_DEVICE(0x1630, 0x0005)},   /* 2Wire 802.11g USB (v1) / Z-Com */
  65         {USB_DEVICE(0x182d, 0x096b)},   /* Sitecom WL-107 */
  66         {USB_DEVICE(0x1915, 0x2234)},   /* Linksys WUSB54G OEM */
  67         {USB_DEVICE(0x1915, 0x2235)},   /* Linksys WUSB54G Portable OEM */
  68         {USB_DEVICE(0x2001, 0x3701)},   /* DLink DWL-G120 Spinnaker */
  69         {USB_DEVICE(0x2001, 0x3703)},   /* DLink DWL-G122 */
  70         {USB_DEVICE(0x2001, 0x3762)},   /* Conceptronic C54U */
  71         {USB_DEVICE(0x5041, 0x2234)},   /* Linksys WUSB54G */
  72         {USB_DEVICE(0x5041, 0x2235)},   /* Linksys WUSB54G Portable */
  73
  74         /* Version 2 devices (3887) */
  75         {USB_DEVICE(0x0471, 0x1230)},   /* Philips CPWUA054/00 */
  76         {USB_DEVICE(0x050d, 0x7050)},   /* Belkin F5D7050 ver 1000 */
  77         {USB_DEVICE(0x0572, 0x2000)},   /* Cohiba Proto board */
  78         {USB_DEVICE(0x0572, 0x2002)},   /* Cohiba Proto board */
  79         {USB_DEVICE(0x06a9, 0x000e)},   /* Westell 802.11g USB (A90-211WG-01) */
  80         {USB_DEVICE(0x06b9, 0x0121)},   /* Thomson SpeedTouch 121g */
  81         {USB_DEVICE(0x0707, 0xee13)},   /* SMC 2862W-G version 2 */
  82         {USB_DEVICE(0x07aa, 0x0020)},   /* Corega WLUSB2GTST USB */
  83         {USB_DEVICE(0x0803, 0x4310)},   /* Zoom 4410a */
  84         {USB_DEVICE(0x083a, 0x4521)},   /* Siemens Gigaset USB Adapter 54 version 2 */
  85         {USB_DEVICE(0x083a, 0x4531)},   /* T-Com Sinus 154 data II */
  86         {USB_DEVICE(0x083a, 0xc501)},   /* Zoom Wireless-G 4410 */
  87         {USB_DEVICE(0x083a, 0xf503)},   /* Accton FD7050E ver 1010ec  */
  88         {USB_DEVICE(0x0846, 0x4240)},   /* Netgear WG111 (v2) */
  89         {USB_DEVICE(0x0915, 0x2000)},   /* Cohiba Proto board */
  90         {USB_DEVICE(0x0915, 0x2002)},   /* Cohiba Proto board */
  91         {USB_DEVICE(0x0baf, 0x0118)},   /* U.S. Robotics U5 802.11g Adapter*/
  92         {USB_DEVICE(0x0bf8, 0x1009)},   /* FUJITSU E-5400 USB D1700*/
  93         /* {USB_DEVICE(0x0cde, 0x0006)}, * Medion MD40900 already listed above,
  94                                          * just noting it here for clarity */
  95         {USB_DEVICE(0x0cde, 0x0008)},   /* Sagem XG703A */
  96         {USB_DEVICE(0x0cde, 0x0015)},   /* Zcomax XG-705A */
  97         {USB_DEVICE(0x0d8e, 0x3762)},   /* DLink DWL-G120 Cohiba */
  98         {USB_DEVICE(0x124a, 0x4025)},   /* IOGear GWU513 (GW3887IK chip) */
  99         {USB_DEVICE(0x1260, 0xee22)},   /* SMC 2862W-G version 2 */
 100         {USB_DEVICE(0x13b1, 0x000a)},   /* Linksys WUSB54G ver 2 */
 101         {USB_DEVICE(0x13B1, 0x000C)},   /* Linksys WUSB54AG */
 102         {USB_DEVICE(0x1413, 0x5400)},   /* Telsey 802.11g USB2.0 Adapter */
 103         {USB_DEVICE(0x1435, 0x0427)},   /* Inventel UR054G */
 104         /* {USB_DEVICE(0x15a9, 0x0002)}, * Also SparkLAN WL-682 with 3887 */
 105         {USB_DEVICE(0x1668, 0x1050)},   /* Actiontec 802UIG-1 */
 106         {USB_DEVICE(0x1740, 0x1000)},   /* Senao NUB-350 */
 107         {USB_DEVICE(0x2001, 0x3704)},   /* DLink DWL-G122 rev A2 */
 108         {USB_DEVICE(0x2001, 0x3705)},   /* D-Link DWL-G120 rev C1 */
 109         {USB_DEVICE(0x413c, 0x5513)},   /* Dell WLA3310 USB Wireless Adapter */
 110         {USB_DEVICE(0x413c, 0x8102)},   /* Spinnaker DUT */
 111         {USB_DEVICE(0x413c, 0x8104)},   /* Cohiba Proto board */
 112         {}
 113 };
 114
 115 MODULE_DEVICE_TABLE(usb, p54u_table);
 116
 117 static const struct {
 118         u32 intf;
 119         enum p54u_hw_type type;
 120         const char *fw;
 121         char hw[20];
 122 } p54u_fwlist[__NUM_P54U_HWTYPES] = {
 123         {
 124                 .type = P54U_NET2280,
 125                 .intf = FW_LM86,
 126                 .fw = "isl3886usb",
 127                 .hw = "ISL3886 + net2280",
 128         },
 129         {
 130                 .type = P54U_3887,
 131                 .intf = FW_LM87,
 132                 .fw = "isl3887usb",
 133                 .hw = "ISL3887",
 134         },
 135 };
 136
 137 static void p54u_rx_cb(struct urb *urb)
 138 {
 139         struct sk_buff *skb = (struct sk_buff *) urb->context;
 140         struct p54u_rx_info *info = (struct p54u_rx_info *)skb->cb;
 141         struct ieee80211_hw *dev = info->dev;
 142         struct p54u_priv *priv = dev->priv;
 143
 144         skb_unlink(skb, &priv->rx_queue);
 145
 146         if (unlikely(urb->status)) {
 147                 dev_kfree_skb_irq(skb);
 148                 return;
 149         }
 150
 151         skb_put(skb, urb->actual_length);
 152
 153         if (priv->hw_type == P54U_NET2280)
 154                 skb_pull(skb, priv->common.tx_hdr_len);
 155         if (priv->common.fw_interface == FW_LM87) {
 156                 skb_pull(skb, 4);
 157                 skb_put(skb, 4);
 158         }
 159
 160         if (p54_rx(dev, skb)) {
 161                 skb = dev_alloc_skb(priv->common.rx_mtu + 32);
 162                 if (unlikely(!skb)) {
 163                         /* TODO check rx queue length and refill *somewhere* */
 164                         return;
 165                 }
 166
 167                 info = (struct p54u_rx_info *) skb->cb;
 168                 info->urb = urb;
 169                 info->dev = dev;
 170                 urb->transfer_buffer = skb_tail_pointer(skb);
 171                 urb->context = skb;
 172         } else {
 173                 if (priv->hw_type == P54U_NET2280)
 174                         skb_push(skb, priv->common.tx_hdr_len);
 175                 if (priv->common.fw_interface == FW_LM87) {
 176                         skb_push(skb, 4);
 177                         skb_put(skb, 4);
 178                 }
 179                 skb_reset_tail_pointer(skb);
 180                 skb_trim(skb, 0);
 181                 urb->transfer_buffer = skb_tail_pointer(skb);
 182         }
 183         skb_queue_tail(&priv->rx_queue, skb);
 184         usb_anchor_urb(urb, &priv->submitted);
 185         if (usb_submit_urb(urb, GFP_ATOMIC)) {
 186                 skb_unlink(skb, &priv->rx_queue);
 187                 usb_unanchor_urb(urb);
 188                 dev_kfree_skb_irq(skb);
 189         }
 190 }
 191
 192 static void p54u_tx_cb(struct urb *urb)
 193 {
 194         struct sk_buff *skb = urb->context;
 195         struct ieee80211_hw *dev =
 196                 usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
 197
 198         p54_free_skb(dev, skb);
 199 }
 200
 201 static void p54u_tx_dummy_cb(struct urb *urb) { }
 202
 203 static void p54u_free_urbs(struct ieee80211_hw *dev)
 204 {
 205         struct p54u_priv *priv = dev->priv;
 206         usb_kill_anchored_urbs(&priv->submitted);
 207 }
 208
 209 static void p54u_stop(struct ieee80211_hw *dev)
 210 {
 211         /*
 212          * TODO: figure out how to reliably stop the 3887 and net2280 so
 213          * the hardware is still usable next time we want to start it.
 214          * until then, we just stop listening to the hardware..
 215          */
 216         p54u_free_urbs(dev);
 217 }
 218
 219 static int p54u_init_urbs(struct ieee80211_hw *dev)
 220 {
 221         struct p54u_priv *priv = dev->priv;
 222         struct urb *entry = NULL;
 223         struct sk_buff *skb;
 224         struct p54u_rx_info *info;
 225         int ret = 0;
 226
 227         while (skb_queue_len(&priv->rx_queue) < 32) {
 228                 skb = __dev_alloc_skb(priv->common.rx_mtu + 32, GFP_KERNEL);
 229                 if (!skb) {
 230                         ret = -ENOMEM;
 231                         goto err;
 232                 }
 233                 entry = usb_alloc_urb(0, GFP_KERNEL);
 234                 if (!entry) {
 235                         ret = -ENOMEM;
 236                         goto err;
 237                 }
 238
 239                 usb_fill_bulk_urb(entry, priv->udev,
 240                                   usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA),
 241                                   skb_tail_pointer(skb),
 242                                   priv->common.rx_mtu + 32, p54u_rx_cb, skb);
 243                 info = (struct p54u_rx_info *) skb->cb;
 244                 info->urb = entry;
 245                 info->dev = dev;
 246                 skb_queue_tail(&priv->rx_queue, skb);
 247
 248                 usb_anchor_urb(entry, &priv->submitted);
 249                 ret = usb_submit_urb(entry, GFP_KERNEL);
 250                 if (ret) {
 251                         skb_unlink(skb, &priv->rx_queue);
 252                         usb_unanchor_urb(entry);
 253                         goto err;
 254                 }
 255                 usb_free_urb(entry);
 256                 entry = NULL;
 257         }
 258
 259         return 0;
 260
 261  err:
 262         usb_free_urb(entry);
 263         kfree_skb(skb);
 264         p54u_free_urbs(dev);
 265         return ret;
 266 }
 267
 268 static int p54u_open(struct ieee80211_hw *dev)
 269 {
 270         /*
 271          * TODO: Because we don't know how to reliably stop the 3887 and
 272          * the isl3886+net2280, other than brutally cut off all
 273          * communications. We have to reinitialize the urbs on every start.
 274          */
 275         return p54u_init_urbs(dev);
 276 }
 277
 278 static __le32 p54u_lm87_chksum(const __le32 *data, size_t length)
 279 {
 280         u32 chk = 0;
 281
 282         length >>= 2;
 283         while (length--) {
 284                 chk ^= le32_to_cpu(*data++);
 285                 chk = (chk >> 5) ^ (chk << 3);
 286         }
 287
 288         return cpu_to_le32(chk);
 289 }
 290
 291 static void p54u_tx_lm87(struct ieee80211_hw *dev, struct sk_buff *skb)
 292 {
 293         struct p54u_priv *priv = dev->priv;
 294         struct urb *data_urb;
 295         struct lm87_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr);
 296
 297         data_urb = usb_alloc_urb(0, GFP_ATOMIC);
 298         if (!data_urb) {
 299                 p54_free_skb(dev, skb);
 300                 return;
 301         }
 302
 303         hdr->chksum = p54u_lm87_chksum((__le32 *)skb->data, skb->len);
 304         hdr->device_addr = ((struct p54_hdr *)skb->data)->req_id;
 305
 306         usb_fill_bulk_urb(data_urb, priv->udev,
 307                           usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
 308                           hdr, skb->len + sizeof(*hdr),  FREE_AFTER_TX(skb) ?
 309                           p54u_tx_cb : p54u_tx_dummy_cb, skb);
 310         data_urb->transfer_flags |= URB_ZERO_PACKET;
 311
 312         usb_anchor_urb(data_urb, &priv->submitted);
 313         if (usb_submit_urb(data_urb, GFP_ATOMIC)) {
 314                 usb_unanchor_urb(data_urb);
 315                 p54_free_skb(dev, skb);
 316         }
 317         usb_free_urb(data_urb);
 318 }
 319
 320 static void p54u_tx_net2280(struct ieee80211_hw *dev, struct sk_buff *skb)
 321 {
 322         struct p54u_priv *priv = dev->priv;
 323         struct urb *int_urb = NULL, *data_urb = NULL;
 324         struct net2280_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr);
 325         struct net2280_reg_write *reg = NULL;
 326         int err = -ENOMEM;
 327
 328         reg = kmalloc(sizeof(*reg), GFP_ATOMIC);
 329         if (!reg)
 330                 goto out;
 331
 332         int_urb = usb_alloc_urb(0, GFP_ATOMIC);
 333         if (!int_urb)
 334                 goto out;
 335
 336         data_urb = usb_alloc_urb(0, GFP_ATOMIC);
 337         if (!data_urb)
 338                 goto out;
 339
 340         reg->port = cpu_to_le16(NET2280_DEV_U32);
 341         reg->addr = cpu_to_le32(P54U_DEV_BASE);
 342         reg->val = cpu_to_le32(ISL38XX_DEV_INT_DATA);
 343
 344         memset(hdr, 0, sizeof(*hdr));
 345         hdr->len = cpu_to_le16(skb->len);
 346         hdr->device_addr = ((struct p54_hdr *) skb->data)->req_id;
 347
 348         usb_fill_bulk_urb(int_urb, priv->udev,
 349                 usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV), reg, sizeof(*reg),
 350                 p54u_tx_dummy_cb, dev);
 351
 352         /*
 353          * URB_FREE_BUFFER triggers a code path in the USB subsystem that will
 354          * free what is inside the transfer_buffer after the last reference to
 355          * the int_urb is dropped.
 356          */
 357         int_urb->transfer_flags |= URB_FREE_BUFFER | URB_ZERO_PACKET;
 358         reg = NULL;
 359
 360         usb_fill_bulk_urb(data_urb, priv->udev,
 361                           usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
 362                           hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ?
 363                           p54u_tx_cb : p54u_tx_dummy_cb, skb);
 364         data_urb->transfer_flags |= URB_ZERO_PACKET;
 365
 366         usb_anchor_urb(int_urb, &priv->submitted);
 367         err = usb_submit_urb(int_urb, GFP_ATOMIC);
 368         if (err) {
 369                 usb_unanchor_urb(int_urb);
 370                 goto out;
 371         }
 372
 373         usb_anchor_urb(data_urb, &priv->submitted);
 374         err = usb_submit_urb(data_urb, GFP_ATOMIC);
 375         if (err) {
 376                 usb_unanchor_urb(data_urb);
 377                 goto out;
 378         }
 379 out:
 380         usb_free_urb(int_urb);
 381         usb_free_urb(data_urb);
 382
 383         if (err) {
 384                 kfree(reg);
 385                 p54_free_skb(dev, skb);
 386         }
 387 }
 388
 389 static int p54u_write(struct p54u_priv *priv,
 390                       struct net2280_reg_write *buf,
 391                       enum net2280_op_type type,
 392                       __le32 addr, __le32 val)
 393 {
 394         unsigned int ep;
 395         int alen;
 396
 397         if (type & 0x0800)
 398                 ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV);
 399         else
 400                 ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_BRG);
 401
 402         buf->port = cpu_to_le16(type);
 403         buf->addr = addr;
 404         buf->val = val;
 405
 406         return usb_bulk_msg(priv->udev, ep, buf, sizeof(*buf), &alen, 1000);
 407 }
 408
 409 static int p54u_read(struct p54u_priv *priv, void *buf,
 410                      enum net2280_op_type type,
 411                      __le32 addr, __le32 *val)
 412 {
 413         struct net2280_reg_read *read = buf;
 414         __le32 *reg = buf;
 415         unsigned int ep;
 416         int alen, err;
 417
 418         if (type & 0x0800)
 419                 ep = P54U_PIPE_DEV;
 420         else
 421                 ep = P54U_PIPE_BRG;
 422
 423         read->port = cpu_to_le16(type);
 424         read->addr = addr;
 425
 426         err = usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep),
 427                            read, sizeof(*read), &alen, 1000);
 428         if (err)
 429                 return err;
 430
 431         err = usb_bulk_msg(priv->udev, usb_rcvbulkpipe(priv->udev, ep),
 432                            reg, sizeof(*reg), &alen, 1000);
 433         if (err)
 434                 return err;
 435
 436         *val = *reg;
 437         return 0;
 438 }
 439
 440 static int p54u_bulk_msg(struct p54u_priv *priv, unsigned int ep,
 441                          void *data, size_t len)
 442 {
 443         int alen;
 444         return usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep),
 445                             data, len, &alen, 2000);
 446 }
 447
 448 static int p54u_device_reset(struct ieee80211_hw *dev)
 449 {
 450         struct p54u_priv *priv = dev->priv;
 451         int ret, lock = (priv->intf->condition != USB_INTERFACE_BINDING);
 452
 453         if (lock) {
 454                 ret = usb_lock_device_for_reset(priv->udev, priv->intf);
 455                 if (ret < 0) {
 456                         dev_err(&priv->udev->dev, "(p54usb) unable to lock "
 457                                 "device for reset (%d)!\n", ret);
 458                         return ret;
 459                 }
 460         }
 461
 462         ret = usb_reset_device(priv->udev);
 463         if (lock)
 464                 usb_unlock_device(priv->udev);
 465
 466         if (ret)
 467                 dev_err(&priv->udev->dev, "(p54usb) unable to reset "
 468                         "device (%d)!\n", ret);
 469
 470         return ret;
 471 }
 472
 473 static const char p54u_romboot_3887[] = "~~~~";
 474 static int p54u_firmware_reset_3887(struct ieee80211_hw *dev)
 475 {
 476         struct p54u_priv *priv = dev->priv;
 477         u8 *buf;
 478         int ret;
 479
 480         buf = kmemdup(p54u_romboot_3887, 4, GFP_KERNEL);
 481         if (!buf)
 482                 return -ENOMEM;
 483         ret = p54u_bulk_msg(priv, P54U_PIPE_DATA,
 484                             buf, 4);
 485         kfree(buf);
 486         if (ret)
 487                 dev_err(&priv->udev->dev, "(p54usb) unable to jump to "
 488                         "boot ROM (%d)!\n", ret);
 489
 490         return ret;
 491 }
 492
 493 static const char p54u_firmware_upload_3887[] = "<\r";
 494 static int p54u_upload_firmware_3887(struct ieee80211_hw *dev)
 495 {
 496         struct p54u_priv *priv = dev->priv;
 497         int err, alen;
 498         u8 carry = 0;
 499         u8 *buf, *tmp;
 500         const u8 *data;
 501         unsigned int left, remains, block_size;
 502         struct x2_header *hdr;
 503         unsigned long timeout;
 504
 505         err = p54u_firmware_reset_3887(dev);
 506         if (err)
 507                 return err;
 508
 509         tmp = buf = kmalloc(P54U_FW_BLOCK, GFP_KERNEL);
 510         if (!buf)
 511                 return -ENOMEM;
 512
 513         left = block_size = min_t(size_t, P54U_FW_BLOCK, priv->fw->size);
 514         strcpy(buf, p54u_firmware_upload_3887);
 515         left -= strlen(p54u_firmware_upload_3887);
 516         tmp += strlen(p54u_firmware_upload_3887);
 517
 518         data = priv->fw->data;
 519         remains = priv->fw->size;
 520
 521         hdr = (struct x2_header *)(buf + strlen(p54u_firmware_upload_3887));
 522         memcpy(hdr->signature, X2_SIGNATURE, X2_SIGNATURE_SIZE);
 523         hdr->fw_load_addr = cpu_to_le32(ISL38XX_DEV_FIRMWARE_ADDR);
 524         hdr->fw_length = cpu_to_le32(priv->fw->size);
 525         hdr->crc = cpu_to_le32(~crc32_le(~0, (void *)&hdr->fw_load_addr,
 526                                          sizeof(u32)*2));
 527         left -= sizeof(*hdr);
 528         tmp += sizeof(*hdr);
 529
 530         while (remains) {
 531                 while (left--) {
 532                         if (carry) {
 533                                 *tmp++ = carry;
 534                                 carry = 0;
 535                                 remains--;
 536                                 continue;
 537                         }
 538                         switch (*data) {
 539                         case '~':
 540                                 *tmp++ = '}';
 541                                 carry = '^';
 542                                 break;
 543                         case '}':
 544                                 *tmp++ = '}';
 545                                 carry = ']';
 546                                 break;
 547                         default:
 548                                 *tmp++ = *data;
 549                                 remains--;
 550                                 break;
 551                         }
 552                         data++;
 553                 }
 554
 555                 err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_size);
 556                 if (err) {
 557                         dev_err(&priv->udev->dev, "(p54usb) firmware "
 558                                                   "upload failed!\n");
 559                         goto err_upload_failed;
 560                 }
 561
 562                 tmp = buf;
 563                 left = block_size = min((unsigned int)P54U_FW_BLOCK, remains);
 564         }
 565
 566         *((__le32 *)buf) = cpu_to_le32(~crc32_le(~0, priv->fw->data,
 567                                                  priv->fw->size));
 568         err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, sizeof(u32));
 569         if (err) {
 570                 dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n");
 571                 goto err_upload_failed;
 572         }
 573         timeout = jiffies + msecs_to_jiffies(1000);
 574         while (!(err = usb_bulk_msg(priv->udev,
 575                 usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) {
 576                 if (alen > 2 && !memcmp(buf, "OK", 2))
 577                         break;
 578
 579                 if (alen > 5 && !memcmp(buf, "ERROR", 5)) {
 580                         err = -EINVAL;
 581                         break;
 582                 }
 583
 584                 if (time_after(jiffies, timeout)) {
 585                         dev_err(&priv->udev->dev, "(p54usb) firmware boot "
 586                                                   "timed out!\n");
 587                         err = -ETIMEDOUT;
 588                         break;
 589                 }
 590         }
 591         if (err) {
 592                 dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n");
 593                 goto err_upload_failed;
 594         }
 595
 596         buf[0] = 'g';
 597         buf[1] = '\r';
 598         err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, 2);
 599         if (err) {
 600                 dev_err(&priv->udev->dev, "(p54usb) firmware boot failed!\n");
 601                 goto err_upload_failed;
 602         }
 603
 604         timeout = jiffies + msecs_to_jiffies(1000);
 605         while (!(err = usb_bulk_msg(priv->udev,
 606                 usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) {
 607                 if (alen > 0 && buf[0] == 'g')
 608                         break;
 609
 610                 if (time_after(jiffies, timeout)) {
 611                         err = -ETIMEDOUT;
 612                         break;
 613                 }
 614         }
 615         if (err)
 616                 goto err_upload_failed;
 617
 618 err_upload_failed:
 619         kfree(buf);
 620         return err;
 621 }
 622
 623 static int p54u_upload_firmware_net2280(struct ieee80211_hw *dev)
 624 {
 625         struct p54u_priv *priv = dev->priv;
 626         const struct p54p_csr *devreg = (const struct p54p_csr *) P54U_DEV_BASE;
 627         int err, alen;
 628         void *buf;
 629         __le32 reg;
 630         unsigned int remains, offset;
 631         const u8 *data;
 632
 633         buf = kmalloc(512, GFP_KERNEL);
 634         if (!buf)
 635                 return -ENOMEM;
 636
 637 #define P54U_WRITE(type, addr, data) \
 638         do {\
 639                 err = p54u_write(priv, buf, type,\
 640                                  cpu_to_le32((u32)(unsigned long)addr), data);\
 641                 if (err) \
 642                         goto fail;\
 643         } while (0)
 644
 645 #define P54U_READ(type, addr) \
 646         do {\
 647                 err = p54u_read(priv, buf, type,\
 648                                 cpu_to_le32((u32)(unsigned long)addr), &reg);\
 649                 if (err)\
 650                         goto fail;\
 651         } while (0)
 652
 653         /* power down net2280 bridge */
 654         P54U_READ(NET2280_BRG_U32, NET2280_GPIOCTL);
 655         reg |= cpu_to_le32(P54U_BRG_POWER_DOWN);
 656         reg &= cpu_to_le32(~P54U_BRG_POWER_UP);
 657         P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg);
 658
 659         mdelay(100);
 660
 661         /* power up bridge */
 662         reg |= cpu_to_le32(P54U_BRG_POWER_UP);
 663         reg &= cpu_to_le32(~P54U_BRG_POWER_DOWN);
 664         P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg);
 665
 666         mdelay(100);
 667
 668         P54U_WRITE(NET2280_BRG_U32, NET2280_DEVINIT,
 669                    cpu_to_le32(NET2280_CLK_30Mhz |
 670                                NET2280_PCI_ENABLE |
 671                                NET2280_PCI_SOFT_RESET));
 672
 673         mdelay(20);
 674
 675         P54U_WRITE(NET2280_BRG_CFG_U16, PCI_COMMAND,
 676                    cpu_to_le32(PCI_COMMAND_MEMORY |
 677                                PCI_COMMAND_MASTER));
 678
 679         P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_0,
 680                    cpu_to_le32(NET2280_BASE));
 681
 682         P54U_READ(NET2280_BRG_CFG_U16, PCI_STATUS);
 683         reg |= cpu_to_le32(PCI_STATUS_REC_MASTER_ABORT);
 684         P54U_WRITE(NET2280_BRG_CFG_U16, PCI_STATUS, reg);
 685
 686         // TODO: we really need this?
 687         P54U_READ(NET2280_BRG_U32, NET2280_RELNUM);
 688
 689         P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_RSP,
 690                    cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE));
 691         P54U_WRITE(NET2280_BRG_U32, NET2280_EPC_RSP,
 692                    cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE));
 693
 694         P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_2,
 695                    cpu_to_le32(NET2280_BASE2));
 696
 697         /* finally done setting up the bridge */
 698
 699         P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | PCI_COMMAND,
 700                    cpu_to_le32(PCI_COMMAND_MEMORY |
 701                                PCI_COMMAND_MASTER));
 702
 703         P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | 0x40 /* TRDY timeout */, 0);
 704         P54U_WRITE(NET2280_DEV_CFG_U32, 0x10000 | PCI_BASE_ADDRESS_0,
 705                    cpu_to_le32(P54U_DEV_BASE));
 706
 707         P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0);
 708         P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
 709                    cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
 710
 711         /* do romboot */
 712         P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable, 0);
 713
 714         P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat);
 715         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
 716         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RAMBOOT);
 717         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN);
 718         P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
 719
 720         mdelay(20);
 721
 722         reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET);
 723         P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
 724
 725         mdelay(20);
 726
 727         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
 728         P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
 729
 730         mdelay(100);
 731
 732         P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
 733         P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
 734
 735         /* finally, we can upload firmware now! */
 736         remains = priv->fw->size;
 737         data = priv->fw->data;
 738         offset = ISL38XX_DEV_FIRMWARE_ADDR;
 739
 740         while (remains) {
 741                 unsigned int block_len = min(remains, (unsigned int)512);
 742                 memcpy(buf, data, block_len);
 743
 744                 err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_len);
 745                 if (err) {
 746                         dev_err(&priv->udev->dev, "(p54usb) firmware block "
 747                                                   "upload failed\n");
 748                         goto fail;
 749                 }
 750
 751                 P54U_WRITE(NET2280_DEV_U32, &devreg->direct_mem_base,
 752                            cpu_to_le32(0xc0000f00));
 753
 754                 P54U_WRITE(NET2280_DEV_U32,
 755                            0x0020 | (unsigned long)&devreg->direct_mem_win, 0);
 756                 P54U_WRITE(NET2280_DEV_U32,
 757                            0x0020 | (unsigned long)&devreg->direct_mem_win,
 758                            cpu_to_le32(1));
 759
 760                 P54U_WRITE(NET2280_DEV_U32,
 761                            0x0024 | (unsigned long)&devreg->direct_mem_win,
 762                            cpu_to_le32(block_len));
 763                 P54U_WRITE(NET2280_DEV_U32,
 764                            0x0028 | (unsigned long)&devreg->direct_mem_win,
 765                            cpu_to_le32(offset));
 766
 767                 P54U_WRITE(NET2280_DEV_U32, &devreg->dma_addr,
 768                            cpu_to_le32(NET2280_EPA_FIFO_PCI_ADDR));
 769                 P54U_WRITE(NET2280_DEV_U32, &devreg->dma_len,
 770                            cpu_to_le32(block_len >> 2));
 771                 P54U_WRITE(NET2280_DEV_U32, &devreg->dma_ctrl,
 772                            cpu_to_le32(ISL38XX_DMA_MASTER_CONTROL_TRIGGER));
 773
 774                 mdelay(10);
 775
 776                 P54U_READ(NET2280_DEV_U32,
 777                           0x002C | (unsigned long)&devreg->direct_mem_win);
 778                 if (!(reg & cpu_to_le32(ISL38XX_DMA_STATUS_DONE)) ||
 779                     !(reg & cpu_to_le32(ISL38XX_DMA_STATUS_READY))) {
 780                         dev_err(&priv->udev->dev, "(p54usb) firmware DMA "
 781                                                   "transfer failed\n");
 782                         goto fail;
 783                 }
 784
 785                 P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_STAT,
 786                            cpu_to_le32(NET2280_FIFO_FLUSH));
 787
 788                 remains -= block_len;
 789                 data += block_len;
 790                 offset += block_len;
 791         }
 792
 793         /* do ramboot */
 794         P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat);
 795         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
 796         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN);
 797         reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RAMBOOT);
 798         P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
 799
 800         mdelay(20);
 801
 802         reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET);
 803         P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
 804
 805         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
 806         P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
 807
 808         mdelay(100);
 809
 810         P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
 811         P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
 812
 813         /* start up the firmware */
 814         P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable,
 815                    cpu_to_le32(ISL38XX_INT_IDENT_INIT));
 816
 817         P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
 818                    cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
 819
 820         P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1,
 821                    cpu_to_le32(NET2280_PCI_INTA_INTERRUPT_ENABLE |
 822                                NET2280_USB_INTERRUPT_ENABLE));
 823
 824         P54U_WRITE(NET2280_DEV_U32, &devreg->dev_int,
 825                    cpu_to_le32(ISL38XX_DEV_INT_RESET));
 826
 827         err = usb_interrupt_msg(priv->udev,
 828                                 usb_rcvbulkpipe(priv->udev, P54U_PIPE_INT),
 829                                 buf, sizeof(__le32), &alen, 1000);
 830         if (err || alen != sizeof(__le32))
 831                 goto fail;
 832
 833         P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
 834         P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
 835
 836         if (!(reg & cpu_to_le32(ISL38XX_INT_IDENT_INIT)))
 837                 err = -EINVAL;
 838
 839         P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0);
 840         P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
 841                    cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
 842
 843 #undef P54U_WRITE
 844 #undef P54U_READ
 845
 846 fail:
 847         kfree(buf);
 848         return err;
 849 }
 850
 851 static int p54_find_type(struct p54u_priv *priv)
 852 {
 853         int i;
 854
 855         for (i = 0; i < __NUM_P54U_HWTYPES; i++)
 856                 if (p54u_fwlist[i].type == priv->hw_type)
 857                         break;
 858         if (i == __NUM_P54U_HWTYPES)
 859                 return -EOPNOTSUPP;
 860
 861         return i;
 862 }
 863
 864 static int p54u_start_ops(struct p54u_priv *priv)
 865 {
 866         struct ieee80211_hw *dev = priv->common.hw;
 867         int ret;
 868
 869         ret = p54_parse_firmware(dev, priv->fw);
 870         if (ret)
 871                 goto err_out;
 872
 873         ret = p54_find_type(priv);
 874         if (ret < 0)
 875                 goto err_out;
 876
 877         if (priv->common.fw_interface != p54u_fwlist[ret].intf) {
 878                 dev_err(&priv->udev->dev, "wrong firmware, please get "
 879                         "a firmware for \"%s\" and try again.\n",
 880                         p54u_fwlist[ret].hw);
 881                 ret = -ENODEV;
 882                 goto err_out;
 883         }
 884
 885         ret = priv->upload_fw(dev);
 886         if (ret)
 887                 goto err_out;
 888
 889         ret = p54u_open(dev);
 890         if (ret)
 891                 goto err_out;
 892
 893         ret = p54_read_eeprom(dev);
 894         if (ret)
 895                 goto err_stop;
 896
 897         p54u_stop(dev);
 898
 899         ret = p54_register_common(dev, &priv->udev->dev);
 900         if (ret)
 901                 goto err_stop;
 902
 903         return 0;
 904
 905 err_stop:
 906         p54u_stop(dev);
 907
 908 err_out:
 909         /*
 910          * p54u_disconnect will do the rest of the
 911          * cleanup
 912          */
 913         return ret;
 914 }
 915
 916 static void p54u_load_firmware_cb(const struct firmware *firmware,
 917                                   void *context)
 918 {
 919         struct p54u_priv *priv = context;
 920         struct usb_device *udev = priv->udev;
 921         int err;
 922
 923         complete(&priv->fw_wait_load);
 924         if (firmware) {
 925                 priv->fw = firmware;
 926                 err = p54u_start_ops(priv);
 927         } else {
 928                 err = -ENOENT;
 929                 dev_err(&udev->dev, "Firmware not found.\n");
 930         }
 931
 932         if (err) {
 933                 struct device *parent = priv->udev->dev.parent;
 934
 935                 dev_err(&udev->dev, "failed to initialize device (%d)\n", err);
 936
 937                 if (parent)
 938                         device_lock(parent);
 939
 940                 device_release_driver(&udev->dev);
 941                 /*
 942                  * At this point p54u_disconnect has already freed
 943                  * the "priv" context. Do not use it anymore!
 944                  */
 945                 priv = NULL;
 946
 947                 if (parent)
 948                         device_unlock(parent);
 949         }
 950
 951         usb_put_dev(udev);
 952 }
 953
 954 static int p54u_load_firmware(struct ieee80211_hw *dev,
 955                               struct usb_interface *intf)
 956 {
 957         struct usb_device *udev = interface_to_usbdev(intf);
 958         struct p54u_priv *priv = dev->priv;
 959         struct device *device = &udev->dev;
 960         int err, i;
 961
 962         BUILD_BUG_ON(ARRAY_SIZE(p54u_fwlist) != __NUM_P54U_HWTYPES);
 963
 964         init_completion(&priv->fw_wait_load);
 965         i = p54_find_type(priv);
 966         if (i < 0)
 967                 return i;
 968
 969         dev_info(&priv->udev->dev, "Loading firmware file %s\n",
 970                p54u_fwlist[i].fw);
 971
 972         usb_get_dev(udev);
 973         err = request_firmware_nowait(THIS_MODULE, 1, p54u_fwlist[i].fw,
 974                                       device, GFP_KERNEL, priv,
 975                                       p54u_load_firmware_cb);
 976         if (err) {
 977                 dev_err(&priv->udev->dev, "(p54usb) cannot load firmware %s "
 978                                           "(%d)!\n", p54u_fwlist[i].fw, err);
 979                 usb_put_dev(udev);
 980         }
 981
 982         return err;
 983 }
 984
 985 static int p54u_probe(struct usb_interface *intf,
 986                                 const struct usb_device_id *id)
 987 {
 988         struct usb_device *udev = interface_to_usbdev(intf);
 989         struct ieee80211_hw *dev;
 990         struct p54u_priv *priv;
 991         int err;
 992         unsigned int i, recognized_pipes;
 993
 994         dev = p54_init_common(sizeof(*priv));
 995
 996         if (!dev) {
 997                 dev_err(&udev->dev, "(p54usb) ieee80211 alloc failed\n");
 998                 return -ENOMEM;
 999         }
1000
1001         priv = dev->priv;
1002         priv->hw_type = P54U_INVALID_HW;
1003
1004         SET_IEEE80211_DEV(dev, &intf->dev);
1005         usb_set_intfdata(intf, dev);
1006         priv->udev = udev;
1007         priv->intf = intf;
1008         skb_queue_head_init(&priv->rx_queue);
1009         init_usb_anchor(&priv->submitted);
1010
1011         usb_get_dev(udev);
1012
1013         /* really lazy and simple way of figuring out if we're a 3887 */
1014         /* TODO: should just stick the identification in the device table */
1015         i = intf->altsetting->desc.bNumEndpoints;
1016         recognized_pipes = 0;
1017         while (i--) {
1018                 switch (intf->altsetting->endpoint[i].desc.bEndpointAddress) {
1019                 case P54U_PIPE_DATA:
1020                 case P54U_PIPE_MGMT:
1021                 case P54U_PIPE_BRG:
1022                 case P54U_PIPE_DEV:
1023                 case P54U_PIPE_DATA | USB_DIR_IN:
1024                 case P54U_PIPE_MGMT | USB_DIR_IN:
1025                 case P54U_PIPE_BRG | USB_DIR_IN:
1026                 case P54U_PIPE_DEV | USB_DIR_IN:
1027                 case P54U_PIPE_INT | USB_DIR_IN:
1028                         recognized_pipes++;
1029                 }
1030         }
1031         priv->common.open = p54u_open;
1032         priv->common.stop = p54u_stop;
1033         if (recognized_pipes < P54U_PIPE_NUMBER) {
1034 #ifdef CONFIG_PM
1035                 /* ISL3887 needs a full reset on resume */
1036                 udev->reset_resume = 1;
1037 #endif /* CONFIG_PM */
1038                 err = p54u_device_reset(dev);
1039
1040                 priv->hw_type = P54U_3887;
1041                 dev->extra_tx_headroom += sizeof(struct lm87_tx_hdr);
1042                 priv->common.tx_hdr_len = sizeof(struct lm87_tx_hdr);
1043                 priv->common.tx = p54u_tx_lm87;
1044                 priv->upload_fw = p54u_upload_firmware_3887;
1045         } else {
1046                 priv->hw_type = P54U_NET2280;
1047                 dev->extra_tx_headroom += sizeof(struct net2280_tx_hdr);
1048                 priv->common.tx_hdr_len = sizeof(struct net2280_tx_hdr);
1049                 priv->common.tx = p54u_tx_net2280;
1050                 priv->upload_fw = p54u_upload_firmware_net2280;
1051         }
1052         err = p54u_load_firmware(dev, intf);
1053         if (err) {
1054                 usb_put_dev(udev);
1055                 p54_free_common(dev);
1056         }
1057         return err;
1058 }
1059
1060 static void p54u_disconnect(struct usb_interface *intf)
1061 {
1062         struct ieee80211_hw *dev = usb_get_intfdata(intf);
1063         struct p54u_priv *priv;
1064
1065         if (!dev)
1066                 return;
1067
1068         priv = dev->priv;
1069         wait_for_completion(&priv->fw_wait_load);
1070         p54_unregister_common(dev);
1071
1072         usb_put_dev(interface_to_usbdev(intf));
1073         release_firmware(priv->fw);
1074         p54_free_common(dev);
1075 }
1076
1077 static int p54u_pre_reset(struct usb_interface *intf)
1078 {
1079         struct ieee80211_hw *dev = usb_get_intfdata(intf);
1080
1081         if (!dev)
1082                 return -ENODEV;
1083
1084         p54u_stop(dev);
1085         return 0;
1086 }
1087
1088 static int p54u_resume(struct usb_interface *intf)
1089 {
1090         struct ieee80211_hw *dev = usb_get_intfdata(intf);
1091         struct p54u_priv *priv;
1092
1093         if (!dev)
1094                 return -ENODEV;
1095
1096         priv = dev->priv;
1097         if (unlikely(!(priv->upload_fw && priv->fw)))
1098                 return 0;
1099
1100         return priv->upload_fw(dev);
1101 }
1102
1103 static int p54u_post_reset(struct usb_interface *intf)
1104 {
1105         struct ieee80211_hw *dev = usb_get_intfdata(intf);
1106         struct p54u_priv *priv;
1107         int err;
1108
1109         err = p54u_resume(intf);
1110         if (err)
1111                 return err;
1112
1113         /* reinitialize old device state */
1114         priv = dev->priv;
1115         if (priv->common.mode != NL80211_IFTYPE_UNSPECIFIED)
1116                 ieee80211_restart_hw(dev);
1117
1118         return 0;
1119 }
1120
1121 #ifdef CONFIG_PM
1122
1123 static int p54u_suspend(struct usb_interface *intf, pm_message_t message)
1124 {
1125         return p54u_pre_reset(intf);
1126 }
1127
1128 #endif /* CONFIG_PM */
1129
1130 static struct usb_driver p54u_driver = {
1131         .name   = "p54usb",
1132         .id_table = p54u_table,
1133         .probe = p54u_probe,
1134         .disconnect = p54u_disconnect,
1135         .pre_reset = p54u_pre_reset,
1136         .post_reset = p54u_post_reset,
1137 #ifdef CONFIG_PM
1138         .suspend = p54u_suspend,
1139         .resume = p54u_resume,
1140         .reset_resume = p54u_resume,
1141 #endif /* CONFIG_PM */
1142         .soft_unbind = 1,
1143         .disable_hub_initiated_lpm = 1,
1144 };
1145
1146 module_usb_driver(p54u_driver);