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/usb.h>
  16 #include <linux/pci.h>
  17 #include <linux/slab.h>
  18 #include <linux/firmware.h>
  19 #include <linux/etherdevice.h>
  20 #include <linux/delay.h>
  21 #include <linux/crc32.h>
  22 #include <linux/module.h>
  23 #include <net/mac80211.h>
  24
  25 #include "p54.h"
  26 #include "lmac.h"
  27 #include "p54usb.h"
  28
  29 MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
  30 MODULE_DESCRIPTION("Prism54 USB wireless driver");
  31 MODULE_LICENSE("GPL");
  32 MODULE_ALIAS("prism54usb");
  33 /*(DEBLOBBED)*/
  34
  35 /*
  36  * Note:
  37  *
  38  * Always update our wiki's device list (located at:
  39  * http://wireless.kernel.org/en/users/Drivers/p54/devices ),
  40  * whenever you add a new device.
  41  */
  42
  43 static struct usb_device_id p54u_table[] = {
  44         /* Version 1 devices (pci chip + net2280) */
  45         {USB_DEVICE(0x0411, 0x0050)},   /* Buffalo WLI2-USB2-G54 */
  46         {USB_DEVICE(0x045e, 0x00c2)},   /* Microsoft MN-710 */
  47         {USB_DEVICE(0x0506, 0x0a11)},   /* 3COM 3CRWE254G72 */
  48         {USB_DEVICE(0x0675, 0x0530)},   /* DrayTek Vigor 530 */
  49         {USB_DEVICE(0x06b9, 0x0120)},   /* Thomson SpeedTouch 120g */
  50         {USB_DEVICE(0x0707, 0xee06)},   /* SMC 2862W-G */
  51         {USB_DEVICE(0x07aa, 0x001c)},   /* Corega CG-WLUSB2GT */
  52         {USB_DEVICE(0x083a, 0x4501)},   /* Accton 802.11g WN4501 USB */
  53         {USB_DEVICE(0x083a, 0x4502)},   /* Siemens Gigaset USB Adapter */
  54         {USB_DEVICE(0x083a, 0x5501)},   /* Phillips CPWUA054 */
  55         {USB_DEVICE(0x0846, 0x4200)},   /* Netgear WG121 */
  56         {USB_DEVICE(0x0846, 0x4210)},   /* Netgear WG121 the second ? */
  57         {USB_DEVICE(0x0846, 0x4220)},   /* Netgear WG111 */
  58         {USB_DEVICE(0x09aa, 0x1000)},   /* Spinnaker Proto board */
  59         {USB_DEVICE(0x0bf8, 0x1007)},   /* Fujitsu E-5400 USB */
  60         {USB_DEVICE(0x0cde, 0x0006)},   /* Medion 40900, Roper Europe */
  61         {USB_DEVICE(0x0db0, 0x6826)},   /* MSI UB54G (MS-6826) */
  62         {USB_DEVICE(0x107b, 0x55f2)},   /* Gateway WGU-210 (Gemtek) */
  63         {USB_DEVICE(0x124a, 0x4023)},   /* Shuttle PN15, Airvast WM168g, IOGear GWU513 */
  64         {USB_DEVICE(0x1435, 0x0210)},   /* Inventel UR054G */
  65         {USB_DEVICE(0x15a9, 0x0002)},   /* Gemtek WUBI-100GW 802.11g */
  66         {USB_DEVICE(0x1630, 0x0005)},   /* 2Wire 802.11g USB (v1) / Z-Com */
  67         {USB_DEVICE(0x182d, 0x096b)},   /* Sitecom WL-107 */
  68         {USB_DEVICE(0x1915, 0x2234)},   /* Linksys WUSB54G OEM */
  69         {USB_DEVICE(0x1915, 0x2235)},   /* Linksys WUSB54G Portable OEM */
  70         {USB_DEVICE(0x2001, 0x3701)},   /* DLink DWL-G120 Spinnaker */
  71         {USB_DEVICE(0x2001, 0x3703)},   /* DLink DWL-G122 */
  72         {USB_DEVICE(0x2001, 0x3762)},   /* Conceptronic C54U */
  73         {USB_DEVICE(0x5041, 0x2234)},   /* Linksys WUSB54G */
  74         {USB_DEVICE(0x5041, 0x2235)},   /* Linksys WUSB54G Portable */
  75
  76         /* Version 2 devices (3887) */
  77         {USB_DEVICE(0x0471, 0x1230)},   /* Philips CPWUA054/00 */
  78         {USB_DEVICE(0x050d, 0x7050)},   /* Belkin F5D7050 ver 1000 */
  79         {USB_DEVICE(0x0572, 0x2000)},   /* Cohiba Proto board */
  80         {USB_DEVICE(0x0572, 0x2002)},   /* Cohiba Proto board */
  81         {USB_DEVICE(0x06a9, 0x000e)},   /* Westell 802.11g USB (A90-211WG-01) */
  82         {USB_DEVICE(0x06b9, 0x0121)},   /* Thomson SpeedTouch 121g */
  83         {USB_DEVICE(0x0707, 0xee13)},   /* SMC 2862W-G version 2 */
  84         {USB_DEVICE(0x07aa, 0x0020)},   /* Corega WLUSB2GTST USB */
  85         {USB_DEVICE(0x0803, 0x4310)},   /* Zoom 4410a */
  86         {USB_DEVICE(0x083a, 0x4521)},   /* Siemens Gigaset USB Adapter 54 version 2 */
  87         {USB_DEVICE(0x083a, 0x4531)},   /* T-Com Sinus 154 data II */
  88         {USB_DEVICE(0x083a, 0xc501)},   /* Zoom Wireless-G 4410 */
  89         {USB_DEVICE(0x083a, 0xf503)},   /* Accton FD7050E ver 1010ec  */
  90         {USB_DEVICE(0x0846, 0x4240)},   /* Netgear WG111 (v2) */
  91         {USB_DEVICE(0x0915, 0x2000)},   /* Cohiba Proto board */
  92         {USB_DEVICE(0x0915, 0x2002)},   /* Cohiba Proto board */
  93         {USB_DEVICE(0x0baf, 0x0118)},   /* U.S. Robotics U5 802.11g Adapter*/
  94         {USB_DEVICE(0x0bf8, 0x1009)},   /* FUJITSU E-5400 USB D1700*/
  95         /* {USB_DEVICE(0x0cde, 0x0006)}, * Medion MD40900 already listed above,
  96                                          * just noting it here for clarity */
  97         {USB_DEVICE(0x0cde, 0x0008)},   /* Sagem XG703A */
  98         {USB_DEVICE(0x0cde, 0x0015)},   /* Zcomax XG-705A */
  99         {USB_DEVICE(0x0d8e, 0x3762)},   /* DLink DWL-G120 Cohiba */
 100         {USB_DEVICE(0x124a, 0x4025)},   /* IOGear GWU513 (GW3887IK chip) */
 101         {USB_DEVICE(0x1260, 0xee22)},   /* SMC 2862W-G version 2 */
 102         {USB_DEVICE(0x13b1, 0x000a)},   /* Linksys WUSB54G ver 2 */
 103         {USB_DEVICE(0x13B1, 0x000C)},   /* Linksys WUSB54AG */
 104         {USB_DEVICE(0x1413, 0x5400)},   /* Telsey 802.11g USB2.0 Adapter */
 105         {USB_DEVICE(0x1435, 0x0427)},   /* Inventel UR054G */
 106         /* {USB_DEVICE(0x15a9, 0x0002)}, * Also SparkLAN WL-682 with 3887 */
 107         {USB_DEVICE(0x1668, 0x1050)},   /* Actiontec 802UIG-1 */
 108         {USB_DEVICE(0x1740, 0x1000)},   /* Senao NUB-350 */
 109         {USB_DEVICE(0x2001, 0x3704)},   /* DLink DWL-G122 rev A2 */
 110         {USB_DEVICE(0x2001, 0x3705)},   /* D-Link DWL-G120 rev C1 */
 111         {USB_DEVICE(0x413c, 0x5513)},   /* Dell WLA3310 USB Wireless Adapter */
 112         {USB_DEVICE(0x413c, 0x8102)},   /* Spinnaker DUT */
 113         {USB_DEVICE(0x413c, 0x8104)},   /* Cohiba Proto board */
 114         {}
 115 };
 116
 117 MODULE_DEVICE_TABLE(usb, p54u_table);
 118
 119 static const struct {
 120         u32 intf;
 121         enum p54u_hw_type type;
 122         const char *fw;
 123         char hw[20];
 124 } p54u_fwlist[__NUM_P54U_HWTYPES] = {
 125         {
 126                 .type = P54U_NET2280,
 127                 .intf = FW_LM86,
 128                 .fw = "/*(DEBLOBBED)*/",
 129                 .hw = "ISL3886 + net2280",
 130         },
 131         {
 132                 .type = P54U_3887,
 133                 .intf = FW_LM87,
 134                 .fw = "/*(DEBLOBBED)*/",
 135                 .hw = "ISL3887",
 136         },
 137 };
 138
 139 static void p54u_rx_cb(struct urb *urb)
 140 {
 141         struct sk_buff *skb = (struct sk_buff *) urb->context;
 142         struct p54u_rx_info *info = (struct p54u_rx_info *)skb->cb;
 143         struct ieee80211_hw *dev = info->dev;
 144         struct p54u_priv *priv = dev->priv;
 145
 146         skb_unlink(skb, &priv->rx_queue);
 147
 148         if (unlikely(urb->status)) {
 149                 dev_kfree_skb_irq(skb);
 150                 return;
 151         }
 152
 153         skb_put(skb, urb->actual_length);
 154
 155         if (priv->hw_type == P54U_NET2280)
 156                 skb_pull(skb, priv->common.tx_hdr_len);
 157         if (priv->common.fw_interface == FW_LM87) {
 158                 skb_pull(skb, 4);
 159                 skb_put(skb, 4);
 160         }
 161
 162         if (p54_rx(dev, skb)) {
 163                 skb = dev_alloc_skb(priv->common.rx_mtu + 32);
 164                 if (unlikely(!skb)) {
 165                         /* TODO check rx queue length and refill *somewhere* */
 166                         return;
 167                 }
 168
 169                 info = (struct p54u_rx_info *) skb->cb;
 170                 info->urb = urb;
 171                 info->dev = dev;
 172                 urb->transfer_buffer = skb_tail_pointer(skb);
 173                 urb->context = skb;
 174         } else {
 175                 if (priv->hw_type == P54U_NET2280)
 176                         skb_push(skb, priv->common.tx_hdr_len);
 177                 if (priv->common.fw_interface == FW_LM87) {
 178                         skb_push(skb, 4);
 179                         skb_put(skb, 4);
 180                 }
 181                 skb_reset_tail_pointer(skb);
 182                 skb_trim(skb, 0);
 183                 urb->transfer_buffer = skb_tail_pointer(skb);
 184         }
 185         skb_queue_tail(&priv->rx_queue, skb);
 186         usb_anchor_urb(urb, &priv->submitted);
 187         if (usb_submit_urb(urb, GFP_ATOMIC)) {
 188                 skb_unlink(skb, &priv->rx_queue);
 189                 usb_unanchor_urb(urb);
 190                 dev_kfree_skb_irq(skb);
 191         }
 192 }
 193
 194 static void p54u_tx_cb(struct urb *urb)
 195 {
 196         struct sk_buff *skb = urb->context;
 197         struct ieee80211_hw *dev =
 198                 usb_get_intfdata(usb_ifnum_to_if(urb->dev, 0));
 199
 200         p54_free_skb(dev, skb);
 201 }
 202
 203 static void p54u_tx_dummy_cb(struct urb *urb) { }
 204
 205 static void p54u_free_urbs(struct ieee80211_hw *dev)
 206 {
 207         struct p54u_priv *priv = dev->priv;
 208         usb_kill_anchored_urbs(&priv->submitted);
 209 }
 210
 211 static void p54u_stop(struct ieee80211_hw *dev)
 212 {
 213         /*
 214          * TODO: figure out how to reliably stop the 3887 and net2280 so
 215          * the hardware is still usable next time we want to start it.
 216          * until then, we just stop listening to the hardware..
 217          */
 218         p54u_free_urbs(dev);
 219 }
 220
 221 static int p54u_init_urbs(struct ieee80211_hw *dev)
 222 {
 223         struct p54u_priv *priv = dev->priv;
 224         struct urb *entry = NULL;
 225         struct sk_buff *skb;
 226         struct p54u_rx_info *info;
 227         int ret = 0;
 228
 229         while (skb_queue_len(&priv->rx_queue) < 32) {
 230                 skb = __dev_alloc_skb(priv->common.rx_mtu + 32, GFP_KERNEL);
 231                 if (!skb) {
 232                         ret = -ENOMEM;
 233                         goto err;
 234                 }
 235                 entry = usb_alloc_urb(0, GFP_KERNEL);
 236                 if (!entry) {
 237                         ret = -ENOMEM;
 238                         goto err;
 239                 }
 240
 241                 usb_fill_bulk_urb(entry, priv->udev,
 242                                   usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA),
 243                                   skb_tail_pointer(skb),
 244                                   priv->common.rx_mtu + 32, p54u_rx_cb, skb);
 245                 info = (struct p54u_rx_info *) skb->cb;
 246                 info->urb = entry;
 247                 info->dev = dev;
 248                 skb_queue_tail(&priv->rx_queue, skb);
 249
 250                 usb_anchor_urb(entry, &priv->submitted);
 251                 ret = usb_submit_urb(entry, GFP_KERNEL);
 252                 if (ret) {
 253                         skb_unlink(skb, &priv->rx_queue);
 254                         usb_unanchor_urb(entry);
 255                         goto err;
 256                 }
 257                 usb_free_urb(entry);
 258                 entry = NULL;
 259         }
 260
 261         return 0;
 262
 263  err:
 264         usb_free_urb(entry);
 265         kfree_skb(skb);
 266         p54u_free_urbs(dev);
 267         return ret;
 268 }
 269
 270 static int p54u_open(struct ieee80211_hw *dev)
 271 {
 272         /*
 273          * TODO: Because we don't know how to reliably stop the 3887 and
 274          * the isl3886+net2280, other than brutally cut off all
 275          * communications. We have to reinitialize the urbs on every start.
 276          */
 277         return p54u_init_urbs(dev);
 278 }
 279
 280 static __le32 p54u_lm87_chksum(const __le32 *data, size_t length)
 281 {
 282         u32 chk = 0;
 283
 284         length >>= 2;
 285         while (length--) {
 286                 chk ^= le32_to_cpu(*data++);
 287                 chk = (chk >> 5) ^ (chk << 3);
 288         }
 289
 290         return cpu_to_le32(chk);
 291 }
 292
 293 static void p54u_tx_lm87(struct ieee80211_hw *dev, struct sk_buff *skb)
 294 {
 295         struct p54u_priv *priv = dev->priv;
 296         struct urb *data_urb;
 297         struct lm87_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr);
 298
 299         data_urb = usb_alloc_urb(0, GFP_ATOMIC);
 300         if (!data_urb) {
 301                 p54_free_skb(dev, skb);
 302                 return;
 303         }
 304
 305         hdr->chksum = p54u_lm87_chksum((__le32 *)skb->data, skb->len);
 306         hdr->device_addr = ((struct p54_hdr *)skb->data)->req_id;
 307
 308         usb_fill_bulk_urb(data_urb, priv->udev,
 309                           usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
 310                           hdr, skb->len + sizeof(*hdr),  FREE_AFTER_TX(skb) ?
 311                           p54u_tx_cb : p54u_tx_dummy_cb, skb);
 312         data_urb->transfer_flags |= URB_ZERO_PACKET;
 313
 314         usb_anchor_urb(data_urb, &priv->submitted);
 315         if (usb_submit_urb(data_urb, GFP_ATOMIC)) {
 316                 usb_unanchor_urb(data_urb);
 317                 p54_free_skb(dev, skb);
 318         }
 319         usb_free_urb(data_urb);
 320 }
 321
 322 static void p54u_tx_net2280(struct ieee80211_hw *dev, struct sk_buff *skb)
 323 {
 324         struct p54u_priv *priv = dev->priv;
 325         struct urb *int_urb = NULL, *data_urb = NULL;
 326         struct net2280_tx_hdr *hdr = (void *)skb->data - sizeof(*hdr);
 327         struct net2280_reg_write *reg = NULL;
 328         int err = -ENOMEM;
 329
 330         reg = kmalloc(sizeof(*reg), GFP_ATOMIC);
 331         if (!reg)
 332                 goto out;
 333
 334         int_urb = usb_alloc_urb(0, GFP_ATOMIC);
 335         if (!int_urb)
 336                 goto out;
 337
 338         data_urb = usb_alloc_urb(0, GFP_ATOMIC);
 339         if (!data_urb)
 340                 goto out;
 341
 342         reg->port = cpu_to_le16(NET2280_DEV_U32);
 343         reg->addr = cpu_to_le32(P54U_DEV_BASE);
 344         reg->val = cpu_to_le32(ISL38XX_DEV_INT_DATA);
 345
 346         memset(hdr, 0, sizeof(*hdr));
 347         hdr->len = cpu_to_le16(skb->len);
 348         hdr->device_addr = ((struct p54_hdr *) skb->data)->req_id;
 349
 350         usb_fill_bulk_urb(int_urb, priv->udev,
 351                 usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV), reg, sizeof(*reg),
 352                 p54u_tx_dummy_cb, dev);
 353
 354         /*
 355          * URB_FREE_BUFFER triggers a code path in the USB subsystem that will
 356          * free what is inside the transfer_buffer after the last reference to
 357          * the int_urb is dropped.
 358          */
 359         int_urb->transfer_flags |= URB_FREE_BUFFER | URB_ZERO_PACKET;
 360         reg = NULL;
 361
 362         usb_fill_bulk_urb(data_urb, priv->udev,
 363                           usb_sndbulkpipe(priv->udev, P54U_PIPE_DATA),
 364                           hdr, skb->len + sizeof(*hdr), FREE_AFTER_TX(skb) ?
 365                           p54u_tx_cb : p54u_tx_dummy_cb, skb);
 366         data_urb->transfer_flags |= URB_ZERO_PACKET;
 367
 368         usb_anchor_urb(int_urb, &priv->submitted);
 369         err = usb_submit_urb(int_urb, GFP_ATOMIC);
 370         if (err) {
 371                 usb_unanchor_urb(int_urb);
 372                 goto out;
 373         }
 374
 375         usb_anchor_urb(data_urb, &priv->submitted);
 376         err = usb_submit_urb(data_urb, GFP_ATOMIC);
 377         if (err) {
 378                 usb_unanchor_urb(data_urb);
 379                 goto out;
 380         }
 381 out:
 382         usb_free_urb(int_urb);
 383         usb_free_urb(data_urb);
 384
 385         if (err) {
 386                 kfree(reg);
 387                 p54_free_skb(dev, skb);
 388         }
 389 }
 390
 391 static int p54u_write(struct p54u_priv *priv,
 392                       struct net2280_reg_write *buf,
 393                       enum net2280_op_type type,
 394                       __le32 addr, __le32 val)
 395 {
 396         unsigned int ep;
 397         int alen;
 398
 399         if (type & 0x0800)
 400                 ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_DEV);
 401         else
 402                 ep = usb_sndbulkpipe(priv->udev, P54U_PIPE_BRG);
 403
 404         buf->port = cpu_to_le16(type);
 405         buf->addr = addr;
 406         buf->val = val;
 407
 408         return usb_bulk_msg(priv->udev, ep, buf, sizeof(*buf), &alen, 1000);
 409 }
 410
 411 static int p54u_read(struct p54u_priv *priv, void *buf,
 412                      enum net2280_op_type type,
 413                      __le32 addr, __le32 *val)
 414 {
 415         struct net2280_reg_read *read = buf;
 416         __le32 *reg = buf;
 417         unsigned int ep;
 418         int alen, err;
 419
 420         if (type & 0x0800)
 421                 ep = P54U_PIPE_DEV;
 422         else
 423                 ep = P54U_PIPE_BRG;
 424
 425         read->port = cpu_to_le16(type);
 426         read->addr = addr;
 427
 428         err = usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep),
 429                            read, sizeof(*read), &alen, 1000);
 430         if (err)
 431                 return err;
 432
 433         err = usb_bulk_msg(priv->udev, usb_rcvbulkpipe(priv->udev, ep),
 434                            reg, sizeof(*reg), &alen, 1000);
 435         if (err)
 436                 return err;
 437
 438         *val = *reg;
 439         return 0;
 440 }
 441
 442 static int p54u_bulk_msg(struct p54u_priv *priv, unsigned int ep,
 443                          void *data, size_t len)
 444 {
 445         int alen;
 446         return usb_bulk_msg(priv->udev, usb_sndbulkpipe(priv->udev, ep),
 447                             data, len, &alen, 2000);
 448 }
 449
 450 static int p54u_device_reset(struct ieee80211_hw *dev)
 451 {
 452         struct p54u_priv *priv = dev->priv;
 453         int ret, lock = (priv->intf->condition != USB_INTERFACE_BINDING);
 454
 455         if (lock) {
 456                 ret = usb_lock_device_for_reset(priv->udev, priv->intf);
 457                 if (ret < 0) {
 458                         dev_err(&priv->udev->dev, "(p54usb) unable to lock "
 459                                 "device for reset (%d)!\n", ret);
 460                         return ret;
 461                 }
 462         }
 463
 464         ret = usb_reset_device(priv->udev);
 465         if (lock)
 466                 usb_unlock_device(priv->udev);
 467
 468         if (ret)
 469                 dev_err(&priv->udev->dev, "(p54usb) unable to reset "
 470                         "device (%d)!\n", ret);
 471
 472         return ret;
 473 }
 474
 475 static const char p54u_romboot_3887[] = "~~~~";
 476 static int p54u_firmware_reset_3887(struct ieee80211_hw *dev)
 477 {
 478         struct p54u_priv *priv = dev->priv;
 479         u8 *buf;
 480         int ret;
 481
 482         buf = kmemdup(p54u_romboot_3887, 4, GFP_KERNEL);
 483         if (!buf)
 484                 return -ENOMEM;
 485         ret = p54u_bulk_msg(priv, P54U_PIPE_DATA,
 486                             buf, 4);
 487         kfree(buf);
 488         if (ret)
 489                 dev_err(&priv->udev->dev, "(p54usb) unable to jump to "
 490                         "boot ROM (%d)!\n", ret);
 491
 492         return ret;
 493 }
 494
 495 static const char p54u_firmware_upload_3887[] = "<\r";
 496 static int p54u_upload_firmware_3887(struct ieee80211_hw *dev)
 497 {
 498         struct p54u_priv *priv = dev->priv;
 499         int err, alen;
 500         u8 carry = 0;
 501         u8 *buf, *tmp;
 502         const u8 *data;
 503         unsigned int left, remains, block_size;
 504         struct x2_header *hdr;
 505         unsigned long timeout;
 506
 507         err = p54u_firmware_reset_3887(dev);
 508         if (err)
 509                 return err;
 510
 511         tmp = buf = kmalloc(P54U_FW_BLOCK, GFP_KERNEL);
 512         if (!buf)
 513                 return -ENOMEM;
 514
 515         left = block_size = min_t(size_t, P54U_FW_BLOCK, priv->fw->size);
 516         strcpy(buf, p54u_firmware_upload_3887);
 517         left -= strlen(p54u_firmware_upload_3887);
 518         tmp += strlen(p54u_firmware_upload_3887);
 519
 520         data = priv->fw->data;
 521         remains = priv->fw->size;
 522
 523         hdr = (struct x2_header *)(buf + strlen(p54u_firmware_upload_3887));
 524         memcpy(hdr->signature, X2_SIGNATURE, X2_SIGNATURE_SIZE);
 525         hdr->fw_load_addr = cpu_to_le32(ISL38XX_DEV_FIRMWARE_ADDR);
 526         hdr->fw_length = cpu_to_le32(priv->fw->size);
 527         hdr->crc = cpu_to_le32(~crc32_le(~0, (void *)&hdr->fw_load_addr,
 528                                          sizeof(u32)*2));
 529         left -= sizeof(*hdr);
 530         tmp += sizeof(*hdr);
 531
 532         while (remains) {
 533                 while (left--) {
 534                         if (carry) {
 535                                 *tmp++ = carry;
 536                                 carry = 0;
 537                                 remains--;
 538                                 continue;
 539                         }
 540                         switch (*data) {
 541                         case '~':
 542                                 *tmp++ = '}';
 543                                 carry = '^';
 544                                 break;
 545                         case '}':
 546                                 *tmp++ = '}';
 547                                 carry = ']';
 548                                 break;
 549                         default:
 550                                 *tmp++ = *data;
 551                                 remains--;
 552                                 break;
 553                         }
 554                         data++;
 555                 }
 556
 557                 err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_size);
 558                 if (err) {
 559                         dev_err(&priv->udev->dev, "(p54usb) firmware "
 560                                                   "upload failed!\n");
 561                         goto err_upload_failed;
 562                 }
 563
 564                 tmp = buf;
 565                 left = block_size = min((unsigned int)P54U_FW_BLOCK, remains);
 566         }
 567
 568         *((__le32 *)buf) = cpu_to_le32(~crc32_le(~0, priv->fw->data,
 569                                                  priv->fw->size));
 570         err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, sizeof(u32));
 571         if (err) {
 572                 dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n");
 573                 goto err_upload_failed;
 574         }
 575         timeout = jiffies + msecs_to_jiffies(1000);
 576         while (!(err = usb_bulk_msg(priv->udev,
 577                 usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) {
 578                 if (alen > 2 && !memcmp(buf, "OK", 2))
 579                         break;
 580
 581                 if (alen > 5 && !memcmp(buf, "ERROR", 5)) {
 582                         err = -EINVAL;
 583                         break;
 584                 }
 585
 586                 if (time_after(jiffies, timeout)) {
 587                         dev_err(&priv->udev->dev, "(p54usb) firmware boot "
 588                                                   "timed out!\n");
 589                         err = -ETIMEDOUT;
 590                         break;
 591                 }
 592         }
 593         if (err) {
 594                 dev_err(&priv->udev->dev, "(p54usb) firmware upload failed!\n");
 595                 goto err_upload_failed;
 596         }
 597
 598         buf[0] = 'g';
 599         buf[1] = '\r';
 600         err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, 2);
 601         if (err) {
 602                 dev_err(&priv->udev->dev, "(p54usb) firmware boot failed!\n");
 603                 goto err_upload_failed;
 604         }
 605
 606         timeout = jiffies + msecs_to_jiffies(1000);
 607         while (!(err = usb_bulk_msg(priv->udev,
 608                 usb_rcvbulkpipe(priv->udev, P54U_PIPE_DATA), buf, 128, &alen, 1000))) {
 609                 if (alen > 0 && buf[0] == 'g')
 610                         break;
 611
 612                 if (time_after(jiffies, timeout)) {
 613                         err = -ETIMEDOUT;
 614                         break;
 615                 }
 616         }
 617         if (err)
 618                 goto err_upload_failed;
 619
 620 err_upload_failed:
 621         kfree(buf);
 622         return err;
 623 }
 624
 625 static int p54u_upload_firmware_net2280(struct ieee80211_hw *dev)
 626 {
 627         struct p54u_priv *priv = dev->priv;
 628         const struct p54p_csr *devreg = (const struct p54p_csr *) P54U_DEV_BASE;
 629         int err, alen;
 630         void *buf;
 631         __le32 reg;
 632         unsigned int remains, offset;
 633         const u8 *data;
 634
 635         buf = kmalloc(512, GFP_KERNEL);
 636         if (!buf)
 637                 return -ENOMEM;
 638
 639 #define P54U_WRITE(type, addr, data) \
 640         do {\
 641                 err = p54u_write(priv, buf, type,\
 642                                  cpu_to_le32((u32)(unsigned long)addr), data);\
 643                 if (err) \
 644                         goto fail;\
 645         } while (0)
 646
 647 #define P54U_READ(type, addr) \
 648         do {\
 649                 err = p54u_read(priv, buf, type,\
 650                                 cpu_to_le32((u32)(unsigned long)addr), &reg);\
 651                 if (err)\
 652                         goto fail;\
 653         } while (0)
 654
 655         /* power down net2280 bridge */
 656         P54U_READ(NET2280_BRG_U32, NET2280_GPIOCTL);
 657         reg |= cpu_to_le32(P54U_BRG_POWER_DOWN);
 658         reg &= cpu_to_le32(~P54U_BRG_POWER_UP);
 659         P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg);
 660
 661         mdelay(100);
 662
 663         /* power up bridge */
 664         reg |= cpu_to_le32(P54U_BRG_POWER_UP);
 665         reg &= cpu_to_le32(~P54U_BRG_POWER_DOWN);
 666         P54U_WRITE(NET2280_BRG_U32, NET2280_GPIOCTL, reg);
 667
 668         mdelay(100);
 669
 670         P54U_WRITE(NET2280_BRG_U32, NET2280_DEVINIT,
 671                    cpu_to_le32(NET2280_CLK_30Mhz |
 672                                NET2280_PCI_ENABLE |
 673                                NET2280_PCI_SOFT_RESET));
 674
 675         mdelay(20);
 676
 677         P54U_WRITE(NET2280_BRG_CFG_U16, PCI_COMMAND,
 678                    cpu_to_le32(PCI_COMMAND_MEMORY |
 679                                PCI_COMMAND_MASTER));
 680
 681         P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_0,
 682                    cpu_to_le32(NET2280_BASE));
 683
 684         P54U_READ(NET2280_BRG_CFG_U16, PCI_STATUS);
 685         reg |= cpu_to_le32(PCI_STATUS_REC_MASTER_ABORT);
 686         P54U_WRITE(NET2280_BRG_CFG_U16, PCI_STATUS, reg);
 687
 688         // TODO: we really need this?
 689         P54U_READ(NET2280_BRG_U32, NET2280_RELNUM);
 690
 691         P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_RSP,
 692                    cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE));
 693         P54U_WRITE(NET2280_BRG_U32, NET2280_EPC_RSP,
 694                    cpu_to_le32(NET2280_CLEAR_NAK_OUT_PACKETS_MODE));
 695
 696         P54U_WRITE(NET2280_BRG_CFG_U32, PCI_BASE_ADDRESS_2,
 697                    cpu_to_le32(NET2280_BASE2));
 698
 699         /* finally done setting up the bridge */
 700
 701         P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | PCI_COMMAND,
 702                    cpu_to_le32(PCI_COMMAND_MEMORY |
 703                                PCI_COMMAND_MASTER));
 704
 705         P54U_WRITE(NET2280_DEV_CFG_U16, 0x10000 | 0x40 /* TRDY timeout */, 0);
 706         P54U_WRITE(NET2280_DEV_CFG_U32, 0x10000 | PCI_BASE_ADDRESS_0,
 707                    cpu_to_le32(P54U_DEV_BASE));
 708
 709         P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0);
 710         P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
 711                    cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
 712
 713         /* do romboot */
 714         P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable, 0);
 715
 716         P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat);
 717         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
 718         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RAMBOOT);
 719         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN);
 720         P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
 721
 722         mdelay(20);
 723
 724         reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET);
 725         P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
 726
 727         mdelay(20);
 728
 729         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
 730         P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
 731
 732         mdelay(100);
 733
 734         P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
 735         P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
 736
 737         /* finally, we can upload firmware now! */
 738         remains = priv->fw->size;
 739         data = priv->fw->data;
 740         offset = ISL38XX_DEV_FIRMWARE_ADDR;
 741
 742         while (remains) {
 743                 unsigned int block_len = min(remains, (unsigned int)512);
 744                 memcpy(buf, data, block_len);
 745
 746                 err = p54u_bulk_msg(priv, P54U_PIPE_DATA, buf, block_len);
 747                 if (err) {
 748                         dev_err(&priv->udev->dev, "(p54usb) firmware block "
 749                                                   "upload failed\n");
 750                         goto fail;
 751                 }
 752
 753                 P54U_WRITE(NET2280_DEV_U32, &devreg->direct_mem_base,
 754                            cpu_to_le32(0xc0000f00));
 755
 756                 P54U_WRITE(NET2280_DEV_U32,
 757                            0x0020 | (unsigned long)&devreg->direct_mem_win, 0);
 758                 P54U_WRITE(NET2280_DEV_U32,
 759                            0x0020 | (unsigned long)&devreg->direct_mem_win,
 760                            cpu_to_le32(1));
 761
 762                 P54U_WRITE(NET2280_DEV_U32,
 763                            0x0024 | (unsigned long)&devreg->direct_mem_win,
 764                            cpu_to_le32(block_len));
 765                 P54U_WRITE(NET2280_DEV_U32,
 766                            0x0028 | (unsigned long)&devreg->direct_mem_win,
 767                            cpu_to_le32(offset));
 768
 769                 P54U_WRITE(NET2280_DEV_U32, &devreg->dma_addr,
 770                            cpu_to_le32(NET2280_EPA_FIFO_PCI_ADDR));
 771                 P54U_WRITE(NET2280_DEV_U32, &devreg->dma_len,
 772                            cpu_to_le32(block_len >> 2));
 773                 P54U_WRITE(NET2280_DEV_U32, &devreg->dma_ctrl,
 774                            cpu_to_le32(ISL38XX_DMA_MASTER_CONTROL_TRIGGER));
 775
 776                 mdelay(10);
 777
 778                 P54U_READ(NET2280_DEV_U32,
 779                           0x002C | (unsigned long)&devreg->direct_mem_win);
 780                 if (!(reg & cpu_to_le32(ISL38XX_DMA_STATUS_DONE)) ||
 781                     !(reg & cpu_to_le32(ISL38XX_DMA_STATUS_READY))) {
 782                         dev_err(&priv->udev->dev, "(p54usb) firmware DMA "
 783                                                   "transfer failed\n");
 784                         goto fail;
 785                 }
 786
 787                 P54U_WRITE(NET2280_BRG_U32, NET2280_EPA_STAT,
 788                            cpu_to_le32(NET2280_FIFO_FLUSH));
 789
 790                 remains -= block_len;
 791                 data += block_len;
 792                 offset += block_len;
 793         }
 794
 795         /* do ramboot */
 796         P54U_READ(NET2280_DEV_U32, &devreg->ctrl_stat);
 797         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
 798         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_CLKRUN);
 799         reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RAMBOOT);
 800         P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
 801
 802         mdelay(20);
 803
 804         reg |= cpu_to_le32(ISL38XX_CTRL_STAT_RESET);
 805         P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
 806
 807         reg &= cpu_to_le32(~ISL38XX_CTRL_STAT_RESET);
 808         P54U_WRITE(NET2280_DEV_U32, &devreg->ctrl_stat, reg);
 809
 810         mdelay(100);
 811
 812         P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
 813         P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
 814
 815         /* start up the firmware */
 816         P54U_WRITE(NET2280_DEV_U32, &devreg->int_enable,
 817                    cpu_to_le32(ISL38XX_INT_IDENT_INIT));
 818
 819         P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
 820                    cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
 821
 822         P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1,
 823                    cpu_to_le32(NET2280_PCI_INTA_INTERRUPT_ENABLE |
 824                                NET2280_USB_INTERRUPT_ENABLE));
 825
 826         P54U_WRITE(NET2280_DEV_U32, &devreg->dev_int,
 827                    cpu_to_le32(ISL38XX_DEV_INT_RESET));
 828
 829         err = usb_interrupt_msg(priv->udev,
 830                                 usb_rcvbulkpipe(priv->udev, P54U_PIPE_INT),
 831                                 buf, sizeof(__le32), &alen, 1000);
 832         if (err || alen != sizeof(__le32))
 833                 goto fail;
 834
 835         P54U_READ(NET2280_DEV_U32, &devreg->int_ident);
 836         P54U_WRITE(NET2280_DEV_U32, &devreg->int_ack, reg);
 837
 838         if (!(reg & cpu_to_le32(ISL38XX_INT_IDENT_INIT)))
 839                 err = -EINVAL;
 840
 841         P54U_WRITE(NET2280_BRG_U32, NET2280_USBIRQENB1, 0);
 842         P54U_WRITE(NET2280_BRG_U32, NET2280_IRQSTAT1,
 843                    cpu_to_le32(NET2280_PCI_INTA_INTERRUPT));
 844
 845 #undef P54U_WRITE
 846 #undef P54U_READ
 847
 848 fail:
 849         kfree(buf);
 850         return err;
 851 }
 852
 853 static int p54_find_type(struct p54u_priv *priv)
 854 {
 855         int i;
 856
 857         for (i = 0; i < __NUM_P54U_HWTYPES; i++)
 858                 if (p54u_fwlist[i].type == priv->hw_type)
 859                         break;
 860         if (i == __NUM_P54U_HWTYPES)
 861                 return -EOPNOTSUPP;
 862
 863         return i;
 864 }
 865
 866 static int p54u_start_ops(struct p54u_priv *priv)
 867 {
 868         struct ieee80211_hw *dev = priv->common.hw;
 869         int ret;
 870
 871         ret = p54_parse_firmware(dev, priv->fw);
 872         if (ret)
 873                 goto err_out;
 874
 875         ret = p54_find_type(priv);
 876         if (ret < 0)
 877                 goto err_out;
 878
 879         if (priv->common.fw_interface != p54u_fwlist[ret].intf) {
 880                 dev_err(&priv->udev->dev, "wrong firmware, please get "
 881                         "a firmware for \"%s\" and try again.\n",
 882                         p54u_fwlist[ret].hw);
 883                 ret = -ENODEV;
 884                 goto err_out;
 885         }
 886
 887         ret = priv->upload_fw(dev);
 888         if (ret)
 889                 goto err_out;
 890
 891         ret = p54u_open(dev);
 892         if (ret)
 893                 goto err_out;
 894
 895         ret = p54_read_eeprom(dev);
 896         if (ret)
 897                 goto err_stop;
 898
 899         p54u_stop(dev);
 900
 901         ret = p54_register_common(dev, &priv->udev->dev);
 902         if (ret)
 903                 goto err_stop;
 904
 905         return 0;
 906
 907 err_stop:
 908         p54u_stop(dev);
 909
 910 err_out:
 911         /*
 912          * p54u_disconnect will do the rest of the
 913          * cleanup
 914          */
 915         return ret;
 916 }
 917
 918 static void p54u_load_firmware_cb(const struct firmware *firmware,
 919                                   void *context)
 920 {
 921         struct p54u_priv *priv = context;
 922         struct usb_device *udev = priv->udev;
 923         int err;
 924
 925         complete(&priv->fw_wait_load);
 926         if (firmware) {
 927                 priv->fw = firmware;
 928                 err = p54u_start_ops(priv);
 929         } else {
 930                 err = -ENOENT;
 931                 dev_err(&udev->dev, "Firmware not found.\n");
 932         }
 933
 934         if (err) {
 935                 struct device *parent = priv->udev->dev.parent;
 936
 937                 dev_err(&udev->dev, "failed to initialize device (%d)\n", err);
 938
 939                 if (parent)
 940                         device_lock(parent);
 941
 942                 device_release_driver(&udev->dev);
 943                 /*
 944                  * At this point p54u_disconnect has already freed
 945                  * the "priv" context. Do not use it anymore!
 946                  */
 947                 priv = NULL;
 948
 949                 if (parent)
 950                         device_unlock(parent);
 951         }
 952
 953         usb_put_dev(udev);
 954 }
 955
 956 static int p54u_load_firmware(struct ieee80211_hw *dev,
 957                               struct usb_interface *intf)
 958 {
 959         struct usb_device *udev = interface_to_usbdev(intf);
 960         struct p54u_priv *priv = dev->priv;
 961         struct device *device = &udev->dev;
 962         int err, i;
 963
 964         BUILD_BUG_ON(ARRAY_SIZE(p54u_fwlist) != __NUM_P54U_HWTYPES);
 965
 966         init_completion(&priv->fw_wait_load);
 967         i = p54_find_type(priv);
 968         if (i < 0)
 969                 return i;
 970
 971         dev_info(&priv->udev->dev, "Loading firmware file %s\n",
 972                p54u_fwlist[i].fw);
 973
 974         usb_get_dev(udev);
 975         err = reject_firmware_nowait(THIS_MODULE, 1, p54u_fwlist[i].fw,
 976                                       device, GFP_KERNEL, priv,
 977                                       p54u_load_firmware_cb);
 978         if (err) {
 979                 dev_err(&priv->udev->dev, "(p54usb) cannot load firmware %s "
 980                                           "(%d)!\n", p54u_fwlist[i].fw, err);
 981                 usb_put_dev(udev);
 982         }
 983
 984         return err;
 985 }
 986
 987 static int p54u_probe(struct usb_interface *intf,
 988                                 const struct usb_device_id *id)
 989 {
 990         struct usb_device *udev = interface_to_usbdev(intf);
 991         struct ieee80211_hw *dev;
 992         struct p54u_priv *priv;
 993         int err;
 994         unsigned int i, recognized_pipes;
 995
 996         dev = p54_init_common(sizeof(*priv));
 997
 998         if (!dev) {
 999                 dev_err(&udev->dev, "(p54usb) ieee80211 alloc failed\n");
1000                 return -ENOMEM;
1001         }
1002
1003         priv = dev->priv;
1004         priv->hw_type = P54U_INVALID_HW;
1005
1006         SET_IEEE80211_DEV(dev, &intf->dev);
1007         usb_set_intfdata(intf, dev);
1008         priv->udev = udev;
1009         priv->intf = intf;
1010         skb_queue_head_init(&priv->rx_queue);
1011         init_usb_anchor(&priv->submitted);
1012
1013         usb_get_dev(udev);
1014
1015         /* really lazy and simple way of figuring out if we're a 3887 */
1016         /* TODO: should just stick the identification in the device table */
1017         i = intf->altsetting->desc.bNumEndpoints;
1018         recognized_pipes = 0;
1019         while (i--) {
1020                 switch (intf->altsetting->endpoint[i].desc.bEndpointAddress) {
1021                 case P54U_PIPE_DATA:
1022                 case P54U_PIPE_MGMT:
1023                 case P54U_PIPE_BRG:
1024                 case P54U_PIPE_DEV:
1025                 case P54U_PIPE_DATA | USB_DIR_IN:
1026                 case P54U_PIPE_MGMT | USB_DIR_IN:
1027                 case P54U_PIPE_BRG | USB_DIR_IN:
1028                 case P54U_PIPE_DEV | USB_DIR_IN:
1029                 case P54U_PIPE_INT | USB_DIR_IN:
1030                         recognized_pipes++;
1031                 }
1032         }
1033         priv->common.open = p54u_open;
1034         priv->common.stop = p54u_stop;
1035         if (recognized_pipes < P54U_PIPE_NUMBER) {
1036 #ifdef CONFIG_PM
1037                 /* ISL3887 needs a full reset on resume */
1038                 udev->reset_resume = 1;
1039 #endif /* CONFIG_PM */
1040                 err = p54u_device_reset(dev);
1041
1042                 priv->hw_type = P54U_3887;
1043                 dev->extra_tx_headroom += sizeof(struct lm87_tx_hdr);
1044                 priv->common.tx_hdr_len = sizeof(struct lm87_tx_hdr);
1045                 priv->common.tx = p54u_tx_lm87;
1046                 priv->upload_fw = p54u_upload_firmware_3887;
1047         } else {
1048                 priv->hw_type = P54U_NET2280;
1049                 dev->extra_tx_headroom += sizeof(struct net2280_tx_hdr);
1050                 priv->common.tx_hdr_len = sizeof(struct net2280_tx_hdr);
1051                 priv->common.tx = p54u_tx_net2280;
1052                 priv->upload_fw = p54u_upload_firmware_net2280;
1053         }
1054         err = p54u_load_firmware(dev, intf);
1055         if (err) {
1056                 usb_put_dev(udev);
1057                 p54_free_common(dev);
1058         }
1059         return err;
1060 }
1061
1062 static void p54u_disconnect(struct usb_interface *intf)
1063 {
1064         struct ieee80211_hw *dev = usb_get_intfdata(intf);
1065         struct p54u_priv *priv;
1066
1067         if (!dev)
1068                 return;
1069
1070         priv = dev->priv;
1071         wait_for_completion(&priv->fw_wait_load);
1072         p54_unregister_common(dev);
1073
1074         usb_put_dev(interface_to_usbdev(intf));
1075         release_firmware(priv->fw);
1076         p54_free_common(dev);
1077 }
1078
1079 static int p54u_pre_reset(struct usb_interface *intf)
1080 {
1081         struct ieee80211_hw *dev = usb_get_intfdata(intf);
1082
1083         if (!dev)
1084                 return -ENODEV;
1085
1086         p54u_stop(dev);
1087         return 0;
1088 }
1089
1090 static int p54u_resume(struct usb_interface *intf)
1091 {
1092         struct ieee80211_hw *dev = usb_get_intfdata(intf);
1093         struct p54u_priv *priv;
1094
1095         if (!dev)
1096                 return -ENODEV;
1097
1098         priv = dev->priv;
1099         if (unlikely(!(priv->upload_fw && priv->fw)))
1100                 return 0;
1101
1102         return priv->upload_fw(dev);
1103 }
1104
1105 static int p54u_post_reset(struct usb_interface *intf)
1106 {
1107         struct ieee80211_hw *dev = usb_get_intfdata(intf);
1108         struct p54u_priv *priv;
1109         int err;
1110
1111         err = p54u_resume(intf);
1112         if (err)
1113                 return err;
1114
1115         /* reinitialize old device state */
1116         priv = dev->priv;
1117         if (priv->common.mode != NL80211_IFTYPE_UNSPECIFIED)
1118                 ieee80211_restart_hw(dev);
1119
1120         return 0;
1121 }
1122
1123 #ifdef CONFIG_PM
1124
1125 static int p54u_suspend(struct usb_interface *intf, pm_message_t message)
1126 {
1127         return p54u_pre_reset(intf);
1128 }
1129
1130 #endif /* CONFIG_PM */
1131
1132 static struct usb_driver p54u_driver = {
1133         .name   = "p54usb",
1134         .id_table = p54u_table,
1135         .probe = p54u_probe,
1136         .disconnect = p54u_disconnect,
1137         .pre_reset = p54u_pre_reset,
1138         .post_reset = p54u_post_reset,
1139 #ifdef CONFIG_PM
1140         .suspend = p54u_suspend,
1141         .resume = p54u_resume,
1142         .reset_resume = p54u_resume,
1143 #endif /* CONFIG_PM */
1144         .soft_unbind = 1,
1145         .disable_hub_initiated_lpm = 1,
1146 };
1147
1148 module_usb_driver(p54u_driver);