drivers/staging/at76_usb/at76_usb.c

   1 /*
   2  * at76c503/at76c505 USB driver
   3  *
   4  * Copyright (c) 2002 - 2003 Oliver Kurth
   5  * Copyright (c) 2004 Joerg Albert <joerg.albert@gmx.de>
   6  * Copyright (c) 2004 Nick Jones
   7  * Copyright (c) 2004 Balint Seeber <n0_5p4m_p13453@hotmail.com>
   8  * Copyright (c) 2007 Guido Guenther <agx@sigxcpu.org>
   9  * Copyright (c) 2007 Kalle Valo <kalle.valo@iki.fi>
  10  *
  11  * This program is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU General Public License as
  13  * published by the Free Software Foundation; either version 2 of
  14  * the License, or (at your option) any later version.
  15  *
  16  * This file is part of the Berlios driver for WLAN USB devices based on the
  17  * Atmel AT76C503A/505/505A.
  18  *
  19  * Some iw_handler code was taken from airo.c, (C) 1999 Benjamin Reed
  20  *
  21  * TODO for the mac80211 port:
  22  * o adhoc support
  23  * o RTS/CTS support
  24  * o Power Save Mode support
  25  * o support for short/long preambles
  26  * o export variables through debugfs/sysfs
  27  */
  28
  29 #include <linux/init.h>
  30 #include <linux/kernel.h>
  31 #include <linux/sched.h>
  32 #include <linux/errno.h>
  33 #include <linux/slab.h>
  34 #include <linux/module.h>
  35 #include <linux/spinlock.h>
  36 #include <linux/list.h>
  37 #include <linux/usb.h>
  38 #include <linux/netdevice.h>
  39 #include <linux/if_arp.h>
  40 #include <linux/etherdevice.h>
  41 #include <linux/ethtool.h>
  42 #include <linux/wireless.h>
  43 #include <net/iw_handler.h>
  44 #include <net/ieee80211_radiotap.h>
  45 #include <linux/firmware.h>
  46 #include <linux/leds.h>
  47 #include <net/mac80211.h>
  48
  49 #include "at76_usb.h"
  50
  51 /* Version information */
  52 #define DRIVER_NAME "at76_usb"
  53 #define DRIVER_VERSION  "0.17"
  54 #define DRIVER_DESC "Atmel at76x USB Wireless LAN Driver"
  55
  56 /* at76_debug bits */
  57 #define DBG_PROGRESS            0x00000001      /* authentication/accociation */
  58 #define DBG_BSS_TABLE           0x00000002      /* show BSS table after scans */
  59 #define DBG_IOCTL               0x00000004      /* ioctl calls / settings */
  60 #define DBG_MAC_STATE           0x00000008      /* MAC state transitions */
  61 #define DBG_TX_DATA             0x00000010      /* tx header */
  62 #define DBG_TX_DATA_CONTENT     0x00000020      /* tx content */
  63 #define DBG_TX_MGMT             0x00000040      /* tx management */
  64 #define DBG_RX_DATA             0x00000080      /* rx data header */
  65 #define DBG_RX_DATA_CONTENT     0x00000100      /* rx data content */
  66 #define DBG_RX_MGMT             0x00000200      /* rx mgmt frame headers */
  67 #define DBG_RX_BEACON           0x00000400      /* rx beacon */
  68 #define DBG_RX_CTRL             0x00000800      /* rx control */
  69 #define DBG_RX_MGMT_CONTENT     0x00001000      /* rx mgmt content */
  70 #define DBG_RX_FRAGS            0x00002000      /* rx data fragment handling */
  71 #define DBG_DEVSTART            0x00004000      /* fw download, device start */
  72 #define DBG_URB                 0x00008000      /* rx urb status, ... */
  73 #define DBG_RX_ATMEL_HDR        0x00010000      /* Atmel-specific Rx headers */
  74 #define DBG_PROC_ENTRY          0x00020000      /* procedure entries/exits */
  75 #define DBG_PM                  0x00040000      /* power management settings */
  76 #define DBG_BSS_MATCH           0x00080000      /* BSS match failures */
  77 #define DBG_PARAMS              0x00100000      /* show configured parameters */
  78 #define DBG_WAIT_COMPLETE       0x00200000      /* command completion */
  79 #define DBG_RX_FRAGS_SKB        0x00400000      /* skb header of Rx fragments */
  80 #define DBG_BSS_TABLE_RM        0x00800000      /* purging bss table entries */
  81 #define DBG_MONITOR_MODE        0x01000000      /* monitor mode */
  82 #define DBG_MIB                 0x02000000      /* dump all MIBs on startup */
  83 #define DBG_MGMT_TIMER          0x04000000      /* dump mgmt_timer ops */
  84 #define DBG_WE_EVENTS           0x08000000      /* dump wireless events */
  85 #define DBG_FW                  0x10000000      /* firmware download */
  86 #define DBG_DFU                 0x20000000      /* device firmware upgrade */
  87 #define DBG_CMD                 0x40000000
  88 #define DBG_MAC80211            0x80000000
  89
  90 #define DBG_DEFAULTS            0
  91
  92 /* Use our own dbg macro */
  93 #define at76_dbg(bits, format, arg...) \
  94 do {    \
  95         if (at76_debug & (bits))        \
  96                 printk(KERN_DEBUG DRIVER_NAME ": " format "\n" , ## arg); \
  97 } while (0)
  98
  99 #define at76_dbg_dump(bits, buf, len, format, arg...)   \
 100 do {    \
 101         if (at76_debug & (bits)) {      \
 102                 printk(KERN_DEBUG DRIVER_NAME ": " format "\n" , ## arg); \
 103                 print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, buf, len); \
 104                 }                                                       \
 105 } while (0)
 106
 107 static int at76_debug = DBG_DEFAULTS;
 108
 109 #define FIRMWARE_IS_WPA(ver) ((ver.major == 1) && (ver.minor == 103))
 110
 111 /* Protect against concurrent firmware loading and parsing */
 112 static struct mutex fw_mutex;
 113
 114 static struct fwentry firmwares[] = {
 115         [0] = { "" },
 116         [BOARD_503_ISL3861] = { "atmel_at76c503-i3861.bin" },
 117         [BOARD_503_ISL3863] = { "atmel_at76c503-i3863.bin" },
 118         [BOARD_503] = { "atmel_at76c503-rfmd.bin" },
 119         [BOARD_503_ACC] = { "atmel_at76c503-rfmd-acc.bin" },
 120         [BOARD_505] = { "atmel_at76c505-rfmd.bin" },
 121         [BOARD_505_2958] = { "atmel_at76c505-rfmd2958.bin" },
 122         [BOARD_505A] = { "atmel_at76c505a-rfmd2958.bin" },
 123         [BOARD_505AMX] = { "atmel_at76c505amx-rfmd.bin" },
 124 };
 125
 126 #define USB_DEVICE_DATA(__ops)  .driver_info = (kernel_ulong_t)(__ops)
 127
 128 static struct usb_device_id dev_table[] = {
 129         /*
 130          * at76c503-i3861
 131          */
 132         /* Generic AT76C503/3861 device */
 133         { USB_DEVICE(0x03eb, 0x7603), USB_DEVICE_DATA(BOARD_503_ISL3861) },
 134         /* Linksys WUSB11 v2.1/v2.6 */
 135         { USB_DEVICE(0x066b, 0x2211), USB_DEVICE_DATA(BOARD_503_ISL3861) },
 136         /* Netgear MA101 rev. A */
 137         { USB_DEVICE(0x0864, 0x4100), USB_DEVICE_DATA(BOARD_503_ISL3861) },
 138         /* Tekram U300C / Allnet ALL0193 */
 139         { USB_DEVICE(0x0b3b, 0x1612), USB_DEVICE_DATA(BOARD_503_ISL3861) },
 140         /* HP HN210W J7801A */
 141         { USB_DEVICE(0x03f0, 0x011c), USB_DEVICE_DATA(BOARD_503_ISL3861) },
 142         /* Sitecom/Z-Com/Zyxel M4Y-750 */
 143         { USB_DEVICE(0x0cde, 0x0001), USB_DEVICE_DATA(BOARD_503_ISL3861) },
 144         /* Dynalink/Askey WLL013 (intersil) */
 145         { USB_DEVICE(0x069a, 0x0320), USB_DEVICE_DATA(BOARD_503_ISL3861) },
 146         /* EZ connect 11Mpbs Wireless USB Adapter SMC2662W v1 */
 147         { USB_DEVICE(0x0d5c, 0xa001), USB_DEVICE_DATA(BOARD_503_ISL3861) },
 148         /* BenQ AWL300 */
 149         { USB_DEVICE(0x04a5, 0x9000), USB_DEVICE_DATA(BOARD_503_ISL3861) },
 150         /* Addtron AWU-120, Compex WLU11 */
 151         { USB_DEVICE(0x05dd, 0xff31), USB_DEVICE_DATA(BOARD_503_ISL3861) },
 152         /* Intel AP310 AnyPoint II USB */
 153         { USB_DEVICE(0x8086, 0x0200), USB_DEVICE_DATA(BOARD_503_ISL3861) },
 154         /* Dynalink L11U */
 155         { USB_DEVICE(0x0d8e, 0x7100), USB_DEVICE_DATA(BOARD_503_ISL3861) },
 156         /* Arescom WL-210, FCC id 07J-GL2411USB */
 157         { USB_DEVICE(0x0d8e, 0x7110), USB_DEVICE_DATA(BOARD_503_ISL3861) },
 158         /* I-O DATA WN-B11/USB */
 159         { USB_DEVICE(0x04bb, 0x0919), USB_DEVICE_DATA(BOARD_503_ISL3861) },
 160         /* BT Voyager 1010 */
 161         { USB_DEVICE(0x069a, 0x0821), USB_DEVICE_DATA(BOARD_503_ISL3861) },
 162         /*
 163          * at76c503-i3863
 164          */
 165         /* Generic AT76C503/3863 device */
 166         { USB_DEVICE(0x03eb, 0x7604), USB_DEVICE_DATA(BOARD_503_ISL3863) },
 167         /* Samsung SWL-2100U */
 168         { USB_DEVICE(0x055d, 0xa000), USB_DEVICE_DATA(BOARD_503_ISL3863) },
 169         /*
 170          * at76c503-rfmd
 171          */
 172         /* Generic AT76C503/RFMD device */
 173         { USB_DEVICE(0x03eb, 0x7605), USB_DEVICE_DATA(BOARD_503) },
 174         /* Dynalink/Askey WLL013 (rfmd) */
 175         { USB_DEVICE(0x069a, 0x0321), USB_DEVICE_DATA(BOARD_503) },
 176         /* Linksys WUSB11 v2.6 */
 177         { USB_DEVICE(0x077b, 0x2219), USB_DEVICE_DATA(BOARD_503) },
 178         /* Network Everywhere NWU11B */
 179         { USB_DEVICE(0x077b, 0x2227), USB_DEVICE_DATA(BOARD_503) },
 180         /* Netgear MA101 rev. B */
 181         { USB_DEVICE(0x0864, 0x4102), USB_DEVICE_DATA(BOARD_503) },
 182         /* D-Link DWL-120 rev. E */
 183         { USB_DEVICE(0x2001, 0x3200), USB_DEVICE_DATA(BOARD_503) },
 184         /* Actiontec 802UAT1, HWU01150-01UK */
 185         { USB_DEVICE(0x1668, 0x7605), USB_DEVICE_DATA(BOARD_503) },
 186         /* AirVast W-Buddie WN210 */
 187         { USB_DEVICE(0x03eb, 0x4102), USB_DEVICE_DATA(BOARD_503) },
 188         /* Dick Smith Electronics XH1153 802.11b USB adapter */
 189         { USB_DEVICE(0x1371, 0x5743), USB_DEVICE_DATA(BOARD_503) },
 190         /* CNet CNUSB611 */
 191         { USB_DEVICE(0x1371, 0x0001), USB_DEVICE_DATA(BOARD_503) },
 192         /* FiberLine FL-WL200U */
 193         { USB_DEVICE(0x1371, 0x0002), USB_DEVICE_DATA(BOARD_503) },
 194         /* BenQ AWL400 USB stick */
 195         { USB_DEVICE(0x04a5, 0x9001), USB_DEVICE_DATA(BOARD_503) },
 196         /* 3Com 3CRSHEW696 */
 197         { USB_DEVICE(0x0506, 0x0a01), USB_DEVICE_DATA(BOARD_503) },
 198         /* Siemens Santis ADSL WLAN USB adapter WLL 013 */
 199         { USB_DEVICE(0x0681, 0x001b), USB_DEVICE_DATA(BOARD_503) },
 200         /* Belkin F5D6050, version 2 */
 201         { USB_DEVICE(0x050d, 0x0050), USB_DEVICE_DATA(BOARD_503) },
 202         /* iBlitzz, BWU613 (not *B or *SB) */
 203         { USB_DEVICE(0x07b8, 0xb000), USB_DEVICE_DATA(BOARD_503) },
 204         /* Gigabyte GN-WLBM101 */
 205         { USB_DEVICE(0x1044, 0x8003), USB_DEVICE_DATA(BOARD_503) },
 206         /* Planex GW-US11S */
 207         { USB_DEVICE(0x2019, 0x3220), USB_DEVICE_DATA(BOARD_503) },
 208         /* Internal WLAN adapter in h5[4,5]xx series iPAQs */
 209         { USB_DEVICE(0x049f, 0x0032), USB_DEVICE_DATA(BOARD_503) },
 210         /* Corega Wireless LAN USB-11 mini */
 211         { USB_DEVICE(0x07aa, 0x0011), USB_DEVICE_DATA(BOARD_503) },
 212         /* Corega Wireless LAN USB-11 mini2 */
 213         { USB_DEVICE(0x07aa, 0x0018), USB_DEVICE_DATA(BOARD_503) },
 214         /* Uniden PCW100 */
 215         { USB_DEVICE(0x05dd, 0xff35), USB_DEVICE_DATA(BOARD_503) },
 216         /*
 217          * at76c503-rfmd-acc
 218          */
 219         /* SMC2664W */
 220         { USB_DEVICE(0x083a, 0x3501), USB_DEVICE_DATA(BOARD_503_ACC) },
 221         /* Belkin F5D6050, SMC2662W v2, SMC2662W-AR */
 222         { USB_DEVICE(0x0d5c, 0xa002), USB_DEVICE_DATA(BOARD_503_ACC) },
 223         /*
 224          * at76c505-rfmd
 225          */
 226         /* Generic AT76C505/RFMD */
 227         { USB_DEVICE(0x03eb, 0x7606), USB_DEVICE_DATA(BOARD_505) },
 228         /*
 229          * at76c505-rfmd2958
 230          */
 231         /* Generic AT76C505/RFMD, OvisLink WL-1130USB */
 232         { USB_DEVICE(0x03eb, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) },
 233         /* Fiberline FL-WL240U */
 234         { USB_DEVICE(0x1371, 0x0014), USB_DEVICE_DATA(BOARD_505_2958) },
 235         /* CNet CNUSB-611G */
 236         { USB_DEVICE(0x1371, 0x0013), USB_DEVICE_DATA(BOARD_505_2958) },
 237         /* Linksys WUSB11 v2.8 */
 238         { USB_DEVICE(0x1915, 0x2233), USB_DEVICE_DATA(BOARD_505_2958) },
 239         /* Xterasys XN-2122B, IBlitzz BWU613B/BWU613SB */
 240         { USB_DEVICE(0x12fd, 0x1001), USB_DEVICE_DATA(BOARD_505_2958) },
 241         /* Corega WLAN USB Stick 11 */
 242         { USB_DEVICE(0x07aa, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) },
 243         /* Microstar MSI Box MS6978 */
 244         { USB_DEVICE(0x0db0, 0x1020), USB_DEVICE_DATA(BOARD_505_2958) },
 245         /*
 246          * at76c505a-rfmd2958
 247          */
 248         /* Generic AT76C505A device */
 249         { USB_DEVICE(0x03eb, 0x7614), USB_DEVICE_DATA(BOARD_505A) },
 250         /* Generic AT76C505AS device */
 251         { USB_DEVICE(0x03eb, 0x7617), USB_DEVICE_DATA(BOARD_505A) },
 252         /* Siemens Gigaset USB WLAN Adapter 11 */
 253         { USB_DEVICE(0x1690, 0x0701), USB_DEVICE_DATA(BOARD_505A) },
 254         /*
 255          * at76c505amx-rfmd
 256          */
 257         /* Generic AT76C505AMX device */
 258         { USB_DEVICE(0x03eb, 0x7615), USB_DEVICE_DATA(BOARD_505AMX) },
 259         { }
 260 };
 261
 262 MODULE_DEVICE_TABLE(usb, dev_table);
 263
 264 /* Supported rates of this hardware, bit 7 marks basic rates */
 265 static const u8 hw_rates[] = { 0x82, 0x84, 0x0b, 0x16 };
 266
 267 static const char *const preambles[] = { "long", "short", "auto" };
 268
 269 /* Firmware download */
 270 /* DFU states */
 271 #define STATE_IDLE                      0x00
 272 #define STATE_DETACH                    0x01
 273 #define STATE_DFU_IDLE                  0x02
 274 #define STATE_DFU_DOWNLOAD_SYNC         0x03
 275 #define STATE_DFU_DOWNLOAD_BUSY         0x04
 276 #define STATE_DFU_DOWNLOAD_IDLE         0x05
 277 #define STATE_DFU_MANIFEST_SYNC         0x06
 278 #define STATE_DFU_MANIFEST              0x07
 279 #define STATE_DFU_MANIFEST_WAIT_RESET   0x08
 280 #define STATE_DFU_UPLOAD_IDLE           0x09
 281 #define STATE_DFU_ERROR                 0x0a
 282
 283 /* DFU commands */
 284 #define DFU_DETACH                      0
 285 #define DFU_DNLOAD                      1
 286 #define DFU_UPLOAD                      2
 287 #define DFU_GETSTATUS                   3
 288 #define DFU_CLRSTATUS                   4
 289 #define DFU_GETSTATE                    5
 290 #define DFU_ABORT                       6
 291
 292 #define FW_BLOCK_SIZE 1024
 293
 294 struct dfu_status {
 295         unsigned char status;
 296         unsigned char poll_timeout[3];
 297         unsigned char state;
 298         unsigned char string;
 299 } __attribute__((packed));
 300
 301 static inline int at76_is_intersil(enum board_type board)
 302 {
 303         if (board == BOARD_503_ISL3861 || board == BOARD_503_ISL3863)
 304                 return 1;
 305         return 0;
 306 }
 307
 308 static inline int at76_is_503rfmd(enum board_type board)
 309 {
 310         if (board == BOARD_503 || board == BOARD_503_ACC)
 311                 return 1;
 312         return 0;
 313 }
 314
 315 static inline int at76_is_505(enum board_type board)
 316 {
 317         if (board == BOARD_505 || board == BOARD_505_2958)
 318                 return 1;
 319         return 0;
 320 }
 321
 322 static inline int at76_is_505a(enum board_type board)
 323 {
 324         if (board == BOARD_505A || board == BOARD_505AMX)
 325                 return 1;
 326         return 0;
 327 }
 328
 329 /* Load a block of the first (internal) part of the firmware */
 330 static int at76_load_int_fw_block(struct usb_device *udev, int blockno,
 331                                   void *block, int size)
 332 {
 333         return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), DFU_DNLOAD,
 334                                USB_TYPE_CLASS | USB_DIR_OUT |
 335                                USB_RECIP_INTERFACE, blockno, 0, block, size,
 336                                USB_CTRL_GET_TIMEOUT);
 337 }
 338
 339 static int at76_dfu_get_status(struct usb_device *udev,
 340                                struct dfu_status *status)
 341 {
 342         int ret;
 343
 344         ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATUS,
 345                               USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE,
 346                               0, 0, status, sizeof(struct dfu_status),
 347                               USB_CTRL_GET_TIMEOUT);
 348         return ret;
 349 }
 350
 351 static u8 at76_dfu_get_state(struct usb_device *udev, u8 *state)
 352 {
 353         int ret;
 354
 355         ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATE,
 356                               USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE,
 357                               0, 0, state, 1, USB_CTRL_GET_TIMEOUT);
 358         return ret;
 359 }
 360
 361 /* Convert timeout from the DFU status to jiffies */
 362 static inline unsigned long at76_get_timeout(struct dfu_status *s)
 363 {
 364         return msecs_to_jiffies((s->poll_timeout[2] << 16)
 365                                 | (s->poll_timeout[1] << 8)
 366                                 | (s->poll_timeout[0]));
 367 }
 368
 369 /* Load internal firmware from the buffer.  If manifest_sync_timeout > 0, use
 370  * its value in jiffies in the MANIFEST_SYNC state.  */
 371 static int at76_usbdfu_download(struct usb_device *udev, u8 *buf, u32 size,
 372                                 int manifest_sync_timeout)
 373 {
 374         u8 *block;
 375         struct dfu_status dfu_stat_buf;
 376         int ret = 0;
 377         int need_dfu_state = 1;
 378         int is_done = 0;
 379         u8 dfu_state = 0;
 380         u32 dfu_timeout = 0;
 381         int bsize = 0;
 382         int blockno = 0;
 383
 384         at76_dbg(DBG_DFU, "%s( %p, %u, %d)", __func__, buf, size,
 385                  manifest_sync_timeout);
 386
 387         if (!size) {
 388                 dev_printk(KERN_ERR, &udev->dev, "FW buffer length invalid!\n");
 389                 return -EINVAL;
 390         }
 391
 392         block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL);
 393         if (!block)
 394                 return -ENOMEM;
 395
 396         do {
 397                 if (need_dfu_state) {
 398                         ret = at76_dfu_get_state(udev, &dfu_state);
 399                         if (ret < 0) {
 400                                 dev_printk(KERN_ERR, &udev->dev,
 401                                            "cannot get DFU state: %d\n", ret);
 402                                 goto exit;
 403                         }
 404                         need_dfu_state = 0;
 405                 }
 406
 407                 switch (dfu_state) {
 408                 case STATE_DFU_DOWNLOAD_SYNC:
 409                         at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_SYNC");
 410                         ret = at76_dfu_get_status(udev, &dfu_stat_buf);
 411                         if (ret >= 0) {
 412                                 dfu_state = dfu_stat_buf.state;
 413                                 dfu_timeout = at76_get_timeout(&dfu_stat_buf);
 414                                 need_dfu_state = 0;
 415                         } else
 416                                 dev_printk(KERN_ERR, &udev->dev,
 417                                            "at76_dfu_get_status returned %d\n",
 418                                            ret);
 419                         break;
 420
 421                 case STATE_DFU_DOWNLOAD_BUSY:
 422                         at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_BUSY");
 423                         need_dfu_state = 1;
 424
 425                         at76_dbg(DBG_DFU, "DFU: Resetting device");
 426                         schedule_timeout_interruptible(dfu_timeout);
 427                         break;
 428
 429                 case STATE_DFU_DOWNLOAD_IDLE:
 430                         at76_dbg(DBG_DFU, "DOWNLOAD...");
 431                         /* fall through */
 432                 case STATE_DFU_IDLE:
 433                         at76_dbg(DBG_DFU, "DFU IDLE");
 434
 435                         bsize = min_t(int, size, FW_BLOCK_SIZE);
 436                         memcpy(block, buf, bsize);
 437                         at76_dbg(DBG_DFU, "int fw, size left = %5d, "
 438                                  "bsize = %4d, blockno = %2d", size, bsize,
 439                                  blockno);
 440                         ret =
 441                             at76_load_int_fw_block(udev, blockno, block, bsize);
 442                         buf += bsize;
 443                         size -= bsize;
 444                         blockno++;
 445
 446                         if (ret != bsize)
 447                                 dev_printk(KERN_ERR, &udev->dev,
 448                                            "at76_load_int_fw_block "
 449                                            "returned %d\n", ret);
 450                         need_dfu_state = 1;
 451                         break;
 452
 453                 case STATE_DFU_MANIFEST_SYNC:
 454                         at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_SYNC");
 455
 456                         ret = at76_dfu_get_status(udev, &dfu_stat_buf);
 457                         if (ret < 0)
 458                                 break;
 459
 460                         dfu_state = dfu_stat_buf.state;
 461                         dfu_timeout = at76_get_timeout(&dfu_stat_buf);
 462                         need_dfu_state = 0;
 463
 464                         /* override the timeout from the status response,
 465                            needed for AT76C505A */
 466                         if (manifest_sync_timeout > 0)
 467                                 dfu_timeout = manifest_sync_timeout;
 468
 469                         at76_dbg(DBG_DFU, "DFU: Waiting for manifest phase");
 470                         schedule_timeout_interruptible(dfu_timeout);
 471                         break;
 472
 473                 case STATE_DFU_MANIFEST:
 474                         at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST");
 475                         is_done = 1;
 476                         break;
 477
 478                 case STATE_DFU_MANIFEST_WAIT_RESET:
 479                         at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_WAIT_RESET");
 480                         is_done = 1;
 481                         break;
 482
 483                 case STATE_DFU_UPLOAD_IDLE:
 484                         at76_dbg(DBG_DFU, "STATE_DFU_UPLOAD_IDLE");
 485                         break;
 486
 487                 case STATE_DFU_ERROR:
 488                         at76_dbg(DBG_DFU, "STATE_DFU_ERROR");
 489                         ret = -EPIPE;
 490                         break;
 491
 492                 default:
 493                         at76_dbg(DBG_DFU, "DFU UNKNOWN STATE (%d)", dfu_state);
 494                         ret = -EINVAL;
 495                         break;
 496                 }
 497         } while (!is_done && (ret >= 0));
 498
 499 exit:
 500         kfree(block);
 501         if (ret >= 0)
 502                 ret = 0;
 503
 504         return ret;
 505 }
 506
 507 #define HEX2STR_BUFFERS 4
 508 #define HEX2STR_MAX_LEN 64
 509 #define BIN2HEX(x) ((x) < 10 ? '0' + (x) : (x) + 'A' - 10)
 510
 511 /* Convert binary data into hex string */
 512 static char *hex2str(void *buf, int len)
 513 {
 514         static atomic_t a = ATOMIC_INIT(0);
 515         static char bufs[HEX2STR_BUFFERS][3 * HEX2STR_MAX_LEN + 1];
 516         char *ret = bufs[atomic_inc_return(&a) & (HEX2STR_BUFFERS - 1)];
 517         char *obuf = ret;
 518         u8 *ibuf = buf;
 519
 520         if (len > HEX2STR_MAX_LEN)
 521                 len = HEX2STR_MAX_LEN;
 522
 523         if (len <= 0) {
 524                 ret[0] = '\0';
 525                 return ret;
 526         }
 527
 528         while (len--) {
 529                 *obuf++ = BIN2HEX(*ibuf >> 4);
 530                 *obuf++ = BIN2HEX(*ibuf & 0xf);
 531                 *obuf++ = '-';
 532                 ibuf++;
 533         }
 534         *(--obuf) = '\0';
 535
 536         return ret;
 537 }
 538
 539 #define MAC2STR_BUFFERS 4
 540
 541 static inline char *mac2str(u8 *mac)
 542 {
 543         static atomic_t a = ATOMIC_INIT(0);
 544         static char bufs[MAC2STR_BUFFERS][6 * 3];
 545         char *str;
 546
 547         str = bufs[atomic_inc_return(&a) & (MAC2STR_BUFFERS - 1)];
 548         sprintf(str, "%02x:%02x:%02x:%02x:%02x:%02x",
 549                 mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
 550         return str;
 551 }
 552
 553 /* LED trigger */
 554 static int tx_activity;
 555 static void at76_ledtrig_tx_timerfunc(unsigned long data);
 556 static DEFINE_TIMER(ledtrig_tx_timer, at76_ledtrig_tx_timerfunc, 0, 0);
 557 DEFINE_LED_TRIGGER(ledtrig_tx);
 558
 559 static void at76_ledtrig_tx_timerfunc(unsigned long data)
 560 {
 561         static int tx_lastactivity;
 562
 563         if (tx_lastactivity != tx_activity) {
 564                 tx_lastactivity = tx_activity;
 565                 led_trigger_event(ledtrig_tx, LED_FULL);
 566                 mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4);
 567         } else
 568                 led_trigger_event(ledtrig_tx, LED_OFF);
 569 }
 570
 571 static void at76_ledtrig_tx_activity(void)
 572 {
 573         tx_activity++;
 574         if (!timer_pending(&ledtrig_tx_timer))
 575                 mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4);
 576 }
 577
 578 static int at76_remap(struct usb_device *udev)
 579 {
 580         int ret;
 581         ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0a,
 582                               USB_TYPE_VENDOR | USB_DIR_OUT |
 583                               USB_RECIP_INTERFACE, 0, 0, NULL, 0,
 584                               USB_CTRL_GET_TIMEOUT);
 585         if (ret < 0)
 586                 return ret;
 587         return 0;
 588 }
 589
 590 static int at76_get_op_mode(struct usb_device *udev)
 591 {
 592         int ret;
 593         u8 op_mode;
 594
 595         ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33,
 596                               USB_TYPE_VENDOR | USB_DIR_IN |
 597                               USB_RECIP_INTERFACE, 0x01, 0, &op_mode, 1,
 598                               USB_CTRL_GET_TIMEOUT);
 599         if (ret < 0)
 600                 return ret;
 601         else if (ret < 1)
 602                 return -EIO;
 603         else
 604                 return op_mode;
 605 }
 606
 607 /* Load a block of the second ("external") part of the firmware */
 608 static inline int at76_load_ext_fw_block(struct usb_device *udev, int blockno,
 609                                          void *block, int size)
 610 {
 611         return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e,
 612                                USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
 613                                0x0802, blockno, block, size,
 614                                USB_CTRL_GET_TIMEOUT);
 615 }
 616
 617 static inline int at76_get_hw_cfg(struct usb_device *udev,
 618                                   union at76_hwcfg *buf, int buf_size)
 619 {
 620         return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33,
 621                                USB_TYPE_VENDOR | USB_DIR_IN |
 622                                USB_RECIP_INTERFACE, 0x0a02, 0,
 623                                buf, buf_size, USB_CTRL_GET_TIMEOUT);
 624 }
 625
 626 /* Intersil boards use a different "value" for GetHWConfig requests */
 627 static inline int at76_get_hw_cfg_intersil(struct usb_device *udev,
 628                                            union at76_hwcfg *buf, int buf_size)
 629 {
 630         return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33,
 631                                USB_TYPE_VENDOR | USB_DIR_IN |
 632                                USB_RECIP_INTERFACE, 0x0902, 0,
 633                                buf, buf_size, USB_CTRL_GET_TIMEOUT);
 634 }
 635
 636 /* Get the hardware configuration for the adapter and put it to the appropriate
 637  * fields of 'priv' (the GetHWConfig request and interpretation of the result
 638  * depends on the board type) */
 639 static int at76_get_hw_config(struct at76_priv *priv)
 640 {
 641         int ret;
 642         union at76_hwcfg *hwcfg = kmalloc(sizeof(*hwcfg), GFP_KERNEL);
 643
 644         if (!hwcfg)
 645                 return -ENOMEM;
 646
 647         if (at76_is_intersil(priv->board_type)) {
 648                 ret = at76_get_hw_cfg_intersil(priv->udev, hwcfg,
 649                                                sizeof(hwcfg->i));
 650                 if (ret < 0)
 651                         goto exit;
 652                 memcpy(priv->mac_addr, hwcfg->i.mac_addr, ETH_ALEN);
 653                 priv->regulatory_domain = hwcfg->i.regulatory_domain;
 654         } else if (at76_is_503rfmd(priv->board_type)) {
 655                 ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r3));
 656                 if (ret < 0)
 657                         goto exit;
 658                 memcpy(priv->mac_addr, hwcfg->r3.mac_addr, ETH_ALEN);
 659                 priv->regulatory_domain = hwcfg->r3.regulatory_domain;
 660         } else {
 661                 ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r5));
 662                 if (ret < 0)
 663                         goto exit;
 664                 memcpy(priv->mac_addr, hwcfg->r5.mac_addr, ETH_ALEN);
 665                 priv->regulatory_domain = hwcfg->r5.regulatory_domain;
 666         }
 667
 668 exit:
 669         kfree(hwcfg);
 670         if (ret < 0)
 671                 printk(KERN_ERR "%s: cannot get HW Config (error %d)\n",
 672                        wiphy_name(priv->hw->wiphy), ret);
 673
 674         return ret;
 675 }
 676
 677 static struct reg_domain const *at76_get_reg_domain(u16 code)
 678 {
 679         int i;
 680         static struct reg_domain const fd_tab[] = {
 681                 { 0x10, "FCC (USA)", 0x7ff },   /* ch 1-11 */
 682                 { 0x20, "IC (Canada)", 0x7ff }, /* ch 1-11 */
 683                 { 0x30, "ETSI (most of Europe)", 0x1fff },      /* ch 1-13 */
 684                 { 0x31, "Spain", 0x600 },       /* ch 10-11 */
 685                 { 0x32, "France", 0x1e00 },     /* ch 10-13 */
 686                 { 0x40, "MKK (Japan)", 0x2000 },        /* ch 14 */
 687                 { 0x41, "MKK1 (Japan)", 0x3fff },       /* ch 1-14 */
 688                 { 0x50, "Israel", 0x3fc },      /* ch 3-9 */
 689                 { 0x00, "<unknown>", 0xffffffff }       /* ch 1-32 */
 690         };
 691
 692         /* Last entry is fallback for unknown domain code */
 693         for (i = 0; i < ARRAY_SIZE(fd_tab) - 1; i++)
 694                 if (code == fd_tab[i].code)
 695                         break;
 696
 697         return &fd_tab[i];
 698 }
 699
 700 static inline int at76_get_mib(struct usb_device *udev, u16 mib, void *buf,
 701                                int buf_size)
 702 {
 703         int ret;
 704
 705         ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33,
 706                               USB_TYPE_VENDOR | USB_DIR_IN |
 707                               USB_RECIP_INTERFACE, mib << 8, 0, buf, buf_size,
 708                               USB_CTRL_GET_TIMEOUT);
 709         if (ret >= 0 && ret != buf_size)
 710                 return -EIO;
 711         return ret;
 712 }
 713
 714 /* Return positive number for status, negative for an error */
 715 static inline int at76_get_cmd_status(struct usb_device *udev, u8 cmd)
 716 {
 717         u8 stat_buf[40];
 718         int ret;
 719
 720         ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x22,
 721                               USB_TYPE_VENDOR | USB_DIR_IN |
 722                               USB_RECIP_INTERFACE, cmd, 0, stat_buf,
 723                               sizeof(stat_buf), USB_CTRL_GET_TIMEOUT);
 724         if (ret < 0)
 725                 return ret;
 726
 727         return stat_buf[5];
 728 }
 729
 730 #define MAKE_CMD_CASE(c) case (c): return #c
 731
 732 static const char *at76_get_cmd_string(u8 cmd_status)
 733 {
 734         switch (cmd_status) {
 735                 MAKE_CMD_CASE(CMD_SET_MIB);
 736                 MAKE_CMD_CASE(CMD_GET_MIB);
 737                 MAKE_CMD_CASE(CMD_SCAN);
 738                 MAKE_CMD_CASE(CMD_JOIN);
 739                 MAKE_CMD_CASE(CMD_START_IBSS);
 740                 MAKE_CMD_CASE(CMD_RADIO_ON);
 741                 MAKE_CMD_CASE(CMD_RADIO_OFF);
 742                 MAKE_CMD_CASE(CMD_STARTUP);
 743         }
 744
 745         return "UNKNOWN";
 746 }
 747
 748 static int at76_set_card_command(struct usb_device *udev, int cmd, void *buf,
 749                                  int buf_size)
 750 {
 751         int ret;
 752         struct at76_command *cmd_buf = kmalloc(sizeof(struct at76_command) +
 753                                                buf_size, GFP_KERNEL);
 754
 755         if (!cmd_buf)
 756                 return -ENOMEM;
 757
 758         cmd_buf->cmd = cmd;
 759         cmd_buf->reserved = 0;
 760         cmd_buf->size = cpu_to_le16(buf_size);
 761         memcpy(cmd_buf->data, buf, buf_size);
 762
 763         at76_dbg_dump(DBG_CMD, cmd_buf, sizeof(struct at76_command) + buf_size,
 764                       "issuing command %s (0x%02x)",
 765                       at76_get_cmd_string(cmd), cmd);
 766
 767         ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e,
 768                               USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
 769                               0, 0, cmd_buf,
 770                               sizeof(struct at76_command) + buf_size,
 771                               USB_CTRL_GET_TIMEOUT);
 772         kfree(cmd_buf);
 773         return ret;
 774 }
 775
 776 #define MAKE_CMD_STATUS_CASE(c) case (c): return #c
 777 static const char *at76_get_cmd_status_string(u8 cmd_status)
 778 {
 779         switch (cmd_status) {
 780                 MAKE_CMD_STATUS_CASE(CMD_STATUS_IDLE);
 781                 MAKE_CMD_STATUS_CASE(CMD_STATUS_COMPLETE);
 782                 MAKE_CMD_STATUS_CASE(CMD_STATUS_UNKNOWN);
 783                 MAKE_CMD_STATUS_CASE(CMD_STATUS_INVALID_PARAMETER);
 784                 MAKE_CMD_STATUS_CASE(CMD_STATUS_FUNCTION_NOT_SUPPORTED);
 785                 MAKE_CMD_STATUS_CASE(CMD_STATUS_TIME_OUT);
 786                 MAKE_CMD_STATUS_CASE(CMD_STATUS_IN_PROGRESS);
 787                 MAKE_CMD_STATUS_CASE(CMD_STATUS_HOST_FAILURE);
 788                 MAKE_CMD_STATUS_CASE(CMD_STATUS_SCAN_FAILED);
 789         }
 790
 791         return "UNKNOWN";
 792 }
 793
 794 /* Wait until the command is completed */
 795 static int at76_wait_completion(struct at76_priv *priv, int cmd)
 796 {
 797         int status = 0;
 798         unsigned long timeout = jiffies + CMD_COMPLETION_TIMEOUT;
 799
 800         do {
 801                 status = at76_get_cmd_status(priv->udev, cmd);
 802                 if (status < 0) {
 803                         printk(KERN_ERR "%s: at76_get_cmd_status failed: %d\n",
 804                                wiphy_name(priv->hw->wiphy), status);
 805                         break;
 806                 }
 807
 808                 at76_dbg(DBG_WAIT_COMPLETE,
 809                          "%s: Waiting on cmd %d, status = %d (%s)",
 810                          wiphy_name(priv->hw->wiphy), cmd, status,
 811                          at76_get_cmd_status_string(status));
 812
 813                 if (status != CMD_STATUS_IN_PROGRESS
 814                     && status != CMD_STATUS_IDLE)
 815                         break;
 816
 817                 schedule_timeout_interruptible(HZ / 10);        /* 100 ms */
 818                 if (time_after(jiffies, timeout)) {
 819                         printk(KERN_ERR
 820                                "%s: completion timeout for command %d\n",
 821                                wiphy_name(priv->hw->wiphy), cmd);
 822                         status = -ETIMEDOUT;
 823                         break;
 824                 }
 825         } while (1);
 826
 827         return status;
 828 }
 829
 830 static int at76_set_mib(struct at76_priv *priv, struct set_mib_buffer *buf)
 831 {
 832         int ret;
 833
 834         ret = at76_set_card_command(priv->udev, CMD_SET_MIB, buf,
 835                                     offsetof(struct set_mib_buffer,
 836                                              data) + buf->size);
 837         if (ret < 0)
 838                 return ret;
 839
 840         ret = at76_wait_completion(priv, CMD_SET_MIB);
 841         if (ret != CMD_STATUS_COMPLETE) {
 842                 printk(KERN_INFO
 843                        "%s: set_mib: at76_wait_completion failed "
 844                        "with %d\n", wiphy_name(priv->hw->wiphy), ret);
 845                 ret = -EIO;
 846         }
 847
 848         return ret;
 849 }
 850
 851 /* Return < 0 on error, == 0 if no command sent, == 1 if cmd sent */
 852 static int at76_set_radio(struct at76_priv *priv, int enable)
 853 {
 854         int ret;
 855         int cmd;
 856
 857         if (priv->radio_on == enable)
 858                 return 0;
 859
 860         cmd = enable ? CMD_RADIO_ON : CMD_RADIO_OFF;
 861
 862         ret = at76_set_card_command(priv->udev, cmd, NULL, 0);
 863         if (ret < 0)
 864                 printk(KERN_ERR "%s: at76_set_card_command(%d) failed: %d\n",
 865                        wiphy_name(priv->hw->wiphy), cmd, ret);
 866         else
 867                 ret = 1;
 868
 869         priv->radio_on = enable;
 870         return ret;
 871 }
 872
 873 /* Set current power save mode (AT76_PM_OFF/AT76_PM_ON/AT76_PM_SMART) */
 874 static int at76_set_pm_mode(struct at76_priv *priv)
 875 {
 876         int ret = 0;
 877
 878         priv->mib_buf.type = MIB_MAC_MGMT;
 879         priv->mib_buf.size = 1;
 880         priv->mib_buf.index = offsetof(struct mib_mac_mgmt, power_mgmt_mode);
 881         priv->mib_buf.data.byte = priv->pm_mode;
 882
 883         ret = at76_set_mib(priv, &priv->mib_buf);
 884         if (ret < 0)
 885                 printk(KERN_ERR "%s: set_mib (pm_mode) failed: %d\n",
 886                        wiphy_name(priv->hw->wiphy), ret);
 887
 888         return ret;
 889 }
 890
 891 static int at76_set_preamble(struct at76_priv *priv, u8 type)
 892 {
 893         int ret = 0;
 894
 895         priv->mib_buf.type = MIB_LOCAL;
 896         priv->mib_buf.size = 1;
 897         priv->mib_buf.index = offsetof(struct mib_local, preamble_type);
 898         priv->mib_buf.data.byte = type;
 899
 900         ret = at76_set_mib(priv, &priv->mib_buf);
 901         if (ret < 0)
 902                 printk(KERN_ERR "%s: set_mib (preamble) failed: %d\n",
 903                        wiphy_name(priv->hw->wiphy), ret);
 904
 905         return ret;
 906 }
 907
 908 static int at76_set_frag(struct at76_priv *priv, u16 size)
 909 {
 910         int ret = 0;
 911
 912         priv->mib_buf.type = MIB_MAC;
 913         priv->mib_buf.size = 2;
 914         priv->mib_buf.index = offsetof(struct mib_mac, frag_threshold);
 915         priv->mib_buf.data.word = cpu_to_le16(size);
 916
 917         ret = at76_set_mib(priv, &priv->mib_buf);
 918         if (ret < 0)
 919                 printk(KERN_ERR "%s: set_mib (frag threshold) failed: %d\n",
 920                        wiphy_name(priv->hw->wiphy), ret);
 921
 922         return ret;
 923 }
 924
 925 static int at76_set_rts(struct at76_priv *priv, u16 size)
 926 {
 927         int ret = 0;
 928
 929         priv->mib_buf.type = MIB_MAC;
 930         priv->mib_buf.size = 2;
 931         priv->mib_buf.index = offsetof(struct mib_mac, rts_threshold);
 932         priv->mib_buf.data.word = cpu_to_le16(size);
 933
 934         ret = at76_set_mib(priv, &priv->mib_buf);
 935         if (ret < 0)
 936                 printk(KERN_ERR "%s: set_mib (rts) failed: %d\n",
 937                        wiphy_name(priv->hw->wiphy), ret);
 938
 939         return ret;
 940 }
 941
 942 static int at76_set_autorate_fallback(struct at76_priv *priv, int onoff)
 943 {
 944         int ret = 0;
 945
 946         priv->mib_buf.type = MIB_LOCAL;
 947         priv->mib_buf.size = 1;
 948         priv->mib_buf.index = offsetof(struct mib_local, txautorate_fallback);
 949         priv->mib_buf.data.byte = onoff;
 950
 951         ret = at76_set_mib(priv, &priv->mib_buf);
 952         if (ret < 0)
 953                 printk(KERN_ERR "%s: set_mib (autorate fallback) failed: %d\n",
 954                        wiphy_name(priv->hw->wiphy), ret);
 955
 956         return ret;
 957 }
 958
 959 static int at76_set_tkip_bssid(struct at76_priv *priv, const void *addr)
 960 {
 961         int ret = 0;
 962
 963         priv->mib_buf.type = MIB_MAC_ENCRYPTION;
 964         priv->mib_buf.size = ETH_ALEN;
 965         priv->mib_buf.index = offsetof(struct mib_mac_encryption, tkip_bssid);
 966         memcpy(priv->mib_buf.data.addr, addr, ETH_ALEN);
 967
 968         ret = at76_set_mib(priv, &priv->mib_buf);
 969         if (ret < 0)
 970                 printk(KERN_ERR "%s: set_mib (MAC_ENCRYPTION, tkip_bssid) failed: %d\n",
 971                        wiphy_name(priv->hw->wiphy), ret);
 972
 973         return ret;
 974 }
 975
 976 static int at76_reset_rsc(struct at76_priv *priv)
 977 {
 978         int ret = 0;
 979
 980         priv->mib_buf.type = MIB_MAC_ENCRYPTION;
 981         priv->mib_buf.size = 4 * 8;
 982         priv->mib_buf.index = offsetof(struct mib_mac_encryption, key_rsc);
 983         memset(priv->mib_buf.data.data, 0 , priv->mib_buf.size);
 984
 985         ret = at76_set_mib(priv, &priv->mib_buf);
 986         if (ret < 0)
 987                 printk(KERN_ERR "%s: set_mib (MAC_ENCRYPTION, key_rsc) failed: %d\n",
 988                        wiphy_name(priv->hw->wiphy), ret);
 989
 990         return ret;
 991 }
 992
 993 static void at76_dump_mib_mac_addr(struct at76_priv *priv)
 994 {
 995         int i;
 996         int ret;
 997         struct mib_mac_addr *m = kmalloc(sizeof(struct mib_mac_addr),
 998                                          GFP_KERNEL);
 999
1000         if (!m)
1001                 return;
1002
1003         ret = at76_get_mib(priv->udev, MIB_MAC_ADDR, m,
1004                            sizeof(struct mib_mac_addr));
1005         if (ret < 0) {
1006                 printk(KERN_ERR "%s: at76_get_mib (MAC_ADDR) failed: %d\n",
1007                        wiphy_name(priv->hw->wiphy), ret);
1008                 goto exit;
1009         }
1010
1011         at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: mac_addr %s res 0x%x 0x%x",
1012                  wiphy_name(priv->hw->wiphy),
1013                  mac2str(m->mac_addr), m->res[0], m->res[1]);
1014         for (i = 0; i < ARRAY_SIZE(m->group_addr); i++)
1015                 at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: group addr %d: %s, "
1016                          "status %d", wiphy_name(priv->hw->wiphy), i,
1017                          mac2str(m->group_addr[i]), m->group_addr_status[i]);
1018 exit:
1019         kfree(m);
1020 }
1021
1022 static void at76_dump_mib_mac_wep(struct at76_priv *priv)
1023 {
1024         int i;
1025         int ret;
1026         int key_len;
1027         struct mib_mac_wep *m = kmalloc(sizeof(struct mib_mac_wep), GFP_KERNEL);
1028
1029         if (!m)
1030                 return;
1031
1032         ret = at76_get_mib(priv->udev, MIB_MAC_WEP, m,
1033                            sizeof(struct mib_mac_wep));
1034         if (ret < 0) {
1035                 printk(KERN_ERR "%s: at76_get_mib (MAC_WEP) failed: %d\n",
1036                        wiphy_name(priv->hw->wiphy), ret);
1037                 goto exit;
1038         }
1039
1040         at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: priv_invoked %u def_key_id %u "
1041                  "key_len %u excl_unencr %u wep_icv_err %u wep_excluded %u "
1042                  "encr_level %u key %d", wiphy_name(priv->hw->wiphy),
1043                  m->privacy_invoked, m->wep_default_key_id,
1044                  m->wep_key_mapping_len, m->exclude_unencrypted,
1045                  le32_to_cpu(m->wep_icv_error_count),
1046                  le32_to_cpu(m->wep_excluded_count), m->encryption_level,
1047                  m->wep_default_key_id);
1048
1049         key_len = (m->encryption_level == 1) ?
1050             WEP_SMALL_KEY_LEN : WEP_LARGE_KEY_LEN;
1051
1052         for (i = 0; i < WEP_KEYS; i++)
1053                 at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: key %d: %s",
1054                          wiphy_name(priv->hw->wiphy), i,
1055                          hex2str(m->wep_default_keyvalue[i], key_len));
1056 exit:
1057         kfree(m);
1058 }
1059
1060 static void at76_dump_mib_mac_encryption(struct at76_priv *priv)
1061 {
1062         int i;
1063         int ret;
1064         /*int key_len;*/
1065         struct mib_mac_encryption *m;
1066
1067         m = kmalloc(sizeof(struct mib_mac_encryption), GFP_KERNEL);
1068         if (!m)
1069                 return;
1070
1071         ret = at76_get_mib(priv->udev, MIB_MAC_ENCRYPTION, m,
1072                            sizeof(struct mib_mac_encryption));
1073         if (ret < 0) {
1074                 dev_err(&priv->udev->dev,
1075                         "%s: at76_get_mib (MAC_ENCRYPTION) failed: %d\n",
1076                         wiphy_name(priv->hw->wiphy), ret);
1077                 goto exit;
1078         }
1079
1080         at76_dbg(DBG_MIB,
1081                  "%s: MIB MAC_ENCRYPTION: tkip_bssid %s priv_invoked %u "
1082                  "ciph_key_id %u grp_key_id %u excl_unencr %u "
1083                  "ckip_key_perm %u wep_icv_err %u wep_excluded %u",
1084                  wiphy_name(priv->hw->wiphy), mac2str(m->tkip_bssid),
1085                  m->privacy_invoked, m->cipher_default_key_id,
1086                  m->cipher_default_group_key_id, m->exclude_unencrypted,
1087                  m->ckip_key_permutation,
1088                  le32_to_cpu(m->wep_icv_error_count),
1089                  le32_to_cpu(m->wep_excluded_count));
1090
1091         /*key_len = (m->encryption_level == 1) ?
1092             WEP_SMALL_KEY_LEN : WEP_LARGE_KEY_LEN;*/
1093
1094         for (i = 0; i < CIPHER_KEYS; i++)
1095                 at76_dbg(DBG_MIB, "%s: MIB MAC_ENCRYPTION: key %d: %s",
1096                          wiphy_name(priv->hw->wiphy), i,
1097                          hex2str(m->cipher_default_keyvalue[i],
1098                                  CIPHER_KEY_LEN));
1099 exit:
1100         kfree(m);
1101 }
1102
1103 static void at76_dump_mib_mac_mgmt(struct at76_priv *priv)
1104 {
1105         int ret;
1106         struct mib_mac_mgmt *m = kmalloc(sizeof(struct mib_mac_mgmt),
1107                                          GFP_KERNEL);
1108
1109         if (!m)
1110                 return;
1111
1112         ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, m,
1113                            sizeof(struct mib_mac_mgmt));
1114         if (ret < 0) {
1115                 printk(KERN_ERR "%s: at76_get_mib (MAC_MGMT) failed: %d\n",
1116                        wiphy_name(priv->hw->wiphy), ret);
1117                 goto exit;
1118         }
1119
1120         at76_dbg(DBG_MIB, "%s: MIB MAC_MGMT: beacon_period %d CFP_max_duration "
1121                  "%d medium_occupancy_limit %d station_id 0x%x ATIM_window %d "
1122                  "CFP_mode %d privacy_opt_impl %d DTIM_period %d CFP_period %d "
1123                  "current_bssid %s current_essid %s current_bss_type %d "
1124                  "pm_mode %d ibss_change %d res %d "
1125                  "multi_domain_capability_implemented %d "
1126                  "international_roaming %d country_string %.3s",
1127                  wiphy_name(priv->hw->wiphy), le16_to_cpu(m->beacon_period),
1128                  le16_to_cpu(m->CFP_max_duration),
1129                  le16_to_cpu(m->medium_occupancy_limit),
1130                  le16_to_cpu(m->station_id), le16_to_cpu(m->ATIM_window),
1131                  m->CFP_mode, m->privacy_option_implemented, m->DTIM_period,
1132                  m->CFP_period, mac2str(m->current_bssid),
1133                  hex2str(m->current_essid, IW_ESSID_MAX_SIZE),
1134                  m->current_bss_type, m->power_mgmt_mode, m->ibss_change,
1135                  m->res, m->multi_domain_capability_implemented,
1136                  m->multi_domain_capability_enabled, m->country_string);
1137 exit:
1138         kfree(m);
1139 }
1140
1141 static void at76_dump_mib_mac(struct at76_priv *priv)
1142 {
1143         int ret;
1144         struct mib_mac *m = kmalloc(sizeof(struct mib_mac), GFP_KERNEL);
1145
1146         if (!m)
1147                 return;
1148
1149         ret = at76_get_mib(priv->udev, MIB_MAC, m, sizeof(struct mib_mac));
1150         if (ret < 0) {
1151                 printk(KERN_ERR "%s: at76_get_mib (MAC) failed: %d\n",
1152                        wiphy_name(priv->hw->wiphy), ret);
1153                 goto exit;
1154         }
1155
1156         at76_dbg(DBG_MIB, "%s: MIB MAC: max_tx_msdu_lifetime %d "
1157                  "max_rx_lifetime %d frag_threshold %d rts_threshold %d "
1158                  "cwmin %d cwmax %d short_retry_time %d long_retry_time %d "
1159                  "scan_type %d scan_channel %d probe_delay %u "
1160                  "min_channel_time %d max_channel_time %d listen_int %d "
1161                  "desired_ssid %s desired_bssid %s desired_bsstype %d",
1162                  wiphy_name(priv->hw->wiphy),
1163                  le32_to_cpu(m->max_tx_msdu_lifetime),
1164                  le32_to_cpu(m->max_rx_lifetime),
1165                  le16_to_cpu(m->frag_threshold), le16_to_cpu(m->rts_threshold),
1166                  le16_to_cpu(m->cwmin), le16_to_cpu(m->cwmax),
1167                  m->short_retry_time, m->long_retry_time, m->scan_type,
1168                  m->scan_channel, le16_to_cpu(m->probe_delay),
1169                  le16_to_cpu(m->min_channel_time),
1170                  le16_to_cpu(m->max_channel_time),
1171                  le16_to_cpu(m->listen_interval),
1172                  hex2str(m->desired_ssid, IW_ESSID_MAX_SIZE),
1173                  mac2str(m->desired_bssid), m->desired_bsstype);
1174 exit:
1175         kfree(m);
1176 }
1177
1178 static void at76_dump_mib_phy(struct at76_priv *priv)
1179 {
1180         int ret;
1181         struct mib_phy *m = kmalloc(sizeof(struct mib_phy), GFP_KERNEL);
1182
1183         if (!m)
1184                 return;
1185
1186         ret = at76_get_mib(priv->udev, MIB_PHY, m, sizeof(struct mib_phy));
1187         if (ret < 0) {
1188                 printk(KERN_ERR "%s: at76_get_mib (PHY) failed: %d\n",
1189                        wiphy_name(priv->hw->wiphy), ret);
1190                 goto exit;
1191         }
1192
1193         at76_dbg(DBG_MIB, "%s: MIB PHY: ed_threshold %d slot_time %d "
1194                  "sifs_time %d preamble_length %d plcp_header_length %d "
1195                  "mpdu_max_length %d cca_mode_supported %d operation_rate_set "
1196                  "0x%x 0x%x 0x%x 0x%x channel_id %d current_cca_mode %d "
1197                  "phy_type %d current_reg_domain %d",
1198                  wiphy_name(priv->hw->wiphy), le32_to_cpu(m->ed_threshold),
1199                  le16_to_cpu(m->slot_time), le16_to_cpu(m->sifs_time),
1200                  le16_to_cpu(m->preamble_length),
1201                  le16_to_cpu(m->plcp_header_length),
1202                  le16_to_cpu(m->mpdu_max_length),
1203                  le16_to_cpu(m->cca_mode_supported), m->operation_rate_set[0],
1204                  m->operation_rate_set[1], m->operation_rate_set[2],
1205                  m->operation_rate_set[3], m->channel_id, m->current_cca_mode,
1206                  m->phy_type, m->current_reg_domain);
1207 exit:
1208         kfree(m);
1209 }
1210
1211 static void at76_dump_mib_local(struct at76_priv *priv)
1212 {
1213         int ret;
1214         struct mib_local *m = kmalloc(sizeof(struct mib_phy), GFP_KERNEL);
1215
1216         if (!m)
1217                 return;
1218
1219         ret = at76_get_mib(priv->udev, MIB_LOCAL, m, sizeof(struct mib_local));
1220         if (ret < 0) {
1221                 printk(KERN_ERR "%s: at76_get_mib (LOCAL) failed: %d\n",
1222                        wiphy_name(priv->hw->wiphy), ret);
1223                 goto exit;
1224         }
1225
1226         at76_dbg(DBG_MIB, "%s: MIB LOCAL: beacon_enable %d "
1227                  "txautorate_fallback %d ssid_size %d promiscuous_mode %d "
1228                  "preamble_type %d", wiphy_name(priv->hw->wiphy),
1229                  m->beacon_enable,
1230                  m->txautorate_fallback, m->ssid_size, m->promiscuous_mode,
1231                  m->preamble_type);
1232 exit:
1233         kfree(m);
1234 }
1235
1236 static void at76_dump_mib_mdomain(struct at76_priv *priv)
1237 {
1238         int ret;
1239         struct mib_mdomain *m = kmalloc(sizeof(struct mib_mdomain), GFP_KERNEL);
1240
1241         if (!m)
1242                 return;
1243
1244         ret = at76_get_mib(priv->udev, MIB_MDOMAIN, m,
1245                            sizeof(struct mib_mdomain));
1246         if (ret < 0) {
1247                 printk(KERN_ERR "%s: at76_get_mib (MDOMAIN) failed: %d\n",
1248                        wiphy_name(priv->hw->wiphy), ret);
1249                 goto exit;
1250         }
1251
1252         at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: channel_list %s",
1253                  wiphy_name(priv->hw->wiphy),
1254                  hex2str(m->channel_list, sizeof(m->channel_list)));
1255
1256         at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: tx_powerlevel %s",
1257                  wiphy_name(priv->hw->wiphy),
1258                  hex2str(m->tx_powerlevel, sizeof(m->tx_powerlevel)));
1259 exit:
1260         kfree(m);
1261 }
1262
1263 /* Enable monitor mode */
1264 static int at76_start_monitor(struct at76_priv *priv)
1265 {
1266         struct at76_req_scan scan;
1267         int ret;
1268
1269         memset(&scan, 0, sizeof(struct at76_req_scan));
1270         memset(scan.bssid, 0xff, ETH_ALEN);
1271
1272         scan.channel = priv->channel;
1273         scan.scan_type = SCAN_TYPE_PASSIVE;
1274         scan.international_scan = 0;
1275
1276         ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan));
1277         if (ret >= 0)
1278                 ret = at76_get_cmd_status(priv->udev, CMD_SCAN);
1279
1280         return ret;
1281 }
1282
1283 /* Calculate padding from txbuf->wlength (which excludes the USB TX header),
1284    likely to compensate a flaw in the AT76C503A USB part ... */
1285 static inline int at76_calc_padding(int wlen)
1286 {
1287         /* add the USB TX header */
1288         wlen += AT76_TX_HDRLEN;
1289
1290         wlen = wlen % 64;
1291
1292         if (wlen < 50)
1293                 return 50 - wlen;
1294
1295         if (wlen >= 61)
1296                 return 64 + 50 - wlen;
1297
1298         return 0;
1299 }
1300
1301 static void at76_rx_callback(struct urb *urb)
1302 {
1303         struct at76_priv *priv = urb->context;
1304
1305         priv->rx_tasklet.data = (unsigned long)urb;
1306         tasklet_schedule(&priv->rx_tasklet);
1307         return;
1308 }
1309
1310 static int at76_submit_rx_urb(struct at76_priv *priv)
1311 {
1312         int ret;
1313         int size;
1314         struct sk_buff *skb = priv->rx_skb;
1315
1316         if (!priv->rx_urb) {
1317                 printk(KERN_ERR "%s: %s: priv->rx_urb is NULL\n",
1318                        wiphy_name(priv->hw->wiphy), __func__);
1319                 return -EFAULT;
1320         }
1321
1322         if (!skb) {
1323                 skb = dev_alloc_skb(sizeof(struct at76_rx_buffer));
1324                 if (!skb) {
1325                         printk(KERN_ERR "%s: cannot allocate rx skbuff\n",
1326                                wiphy_name(priv->hw->wiphy));
1327                         ret = -ENOMEM;
1328                         goto exit;
1329                 }
1330                 priv->rx_skb = skb;
1331         } else {
1332                 skb_push(skb, skb_headroom(skb));
1333                 skb_trim(skb, 0);
1334         }
1335
1336         size = skb_tailroom(skb);
1337         usb_fill_bulk_urb(priv->rx_urb, priv->udev, priv->rx_pipe,
1338                           skb_put(skb, size), size, at76_rx_callback, priv);
1339         ret = usb_submit_urb(priv->rx_urb, GFP_ATOMIC);
1340         if (ret < 0) {
1341                 if (ret == -ENODEV)
1342                         at76_dbg(DBG_DEVSTART,
1343                                  "usb_submit_urb returned -ENODEV");
1344                 else
1345                         printk(KERN_ERR "%s: rx, usb_submit_urb failed: %d\n",
1346                                wiphy_name(priv->hw->wiphy), ret);
1347         }
1348
1349 exit:
1350         if (ret < 0 && ret != -ENODEV)
1351                 printk(KERN_ERR "%s: cannot submit rx urb - please unload the "
1352                        "driver and/or power cycle the device\n",
1353                        wiphy_name(priv->hw->wiphy));
1354
1355         return ret;
1356 }
1357
1358 /* Download external firmware */
1359 static int at76_load_external_fw(struct usb_device *udev, struct fwentry *fwe)
1360 {
1361         int ret;
1362         int op_mode;
1363         int blockno = 0;
1364         int bsize;
1365         u8 *block;
1366         u8 *buf = fwe->extfw;
1367         int size = fwe->extfw_size;
1368
1369         if (!buf || !size)
1370                 return -ENOENT;
1371
1372         op_mode = at76_get_op_mode(udev);
1373         at76_dbg(DBG_DEVSTART, "opmode %d", op_mode);
1374
1375         if (op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) {
1376                 dev_printk(KERN_ERR, &udev->dev, "unexpected opmode %d\n",
1377                            op_mode);
1378                 return -EINVAL;
1379         }
1380
1381         block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL);
1382         if (!block)
1383                 return -ENOMEM;
1384
1385         at76_dbg(DBG_DEVSTART, "downloading external firmware");
1386
1387         /* for fw >= 0.100, the device needs an extra empty block */
1388         do {
1389                 bsize = min_t(int, size, FW_BLOCK_SIZE);
1390                 memcpy(block, buf, bsize);
1391                 at76_dbg(DBG_DEVSTART,
1392                          "ext fw, size left = %5d, bsize = %4d, blockno = %2d",
1393                          size, bsize, blockno);
1394                 ret = at76_load_ext_fw_block(udev, blockno, block, bsize);
1395                 if (ret != bsize) {
1396                         dev_printk(KERN_ERR, &udev->dev,
1397                                    "loading %dth firmware block failed: %d\n",
1398                                    blockno, ret);
1399                         goto exit;
1400                 }
1401                 buf += bsize;
1402                 size -= bsize;
1403                 blockno++;
1404         } while (bsize > 0);
1405
1406         if (at76_is_505a(fwe->board_type)) {
1407                 at76_dbg(DBG_DEVSTART, "200 ms delay for 505a");
1408                 schedule_timeout_interruptible(HZ / 5 + 1);
1409         }
1410
1411 exit:
1412         kfree(block);
1413         if (ret < 0)
1414                 dev_printk(KERN_ERR, &udev->dev,
1415                            "downloading external firmware failed: %d\n", ret);
1416         return ret;
1417 }
1418
1419 /* Download internal firmware */
1420 static int at76_load_internal_fw(struct usb_device *udev, struct fwentry *fwe)
1421 {
1422         int ret;
1423         int need_remap = !at76_is_505a(fwe->board_type);
1424
1425         ret = at76_usbdfu_download(udev, fwe->intfw, fwe->intfw_size,
1426                                    need_remap ? 0 : 2 * HZ);
1427
1428         if (ret < 0) {
1429                 dev_printk(KERN_ERR, &udev->dev,
1430                            "downloading internal fw failed with %d\n", ret);
1431                 goto exit;
1432         }
1433
1434         at76_dbg(DBG_DEVSTART, "sending REMAP");
1435
1436         /* no REMAP for 505A (see SF driver) */
1437         if (need_remap) {
1438                 ret = at76_remap(udev);
1439                 if (ret < 0) {
1440                         dev_printk(KERN_ERR, &udev->dev,
1441                                    "sending REMAP failed with %d\n", ret);
1442                         goto exit;
1443                 }
1444         }
1445
1446         at76_dbg(DBG_DEVSTART, "sleeping for 2 seconds");
1447         schedule_timeout_interruptible(2 * HZ + 1);
1448         usb_reset_device(udev);
1449
1450 exit:
1451         return ret;
1452 }
1453
1454 static int at76_startup_device(struct at76_priv *priv)
1455 {
1456         struct at76_card_config *ccfg = &priv->card_config;
1457         int ret;
1458
1459         at76_dbg(DBG_PARAMS,
1460                  "%s param: ssid %.*s (%s) mode %s ch %d wep %s key %d "
1461                  "keylen %d", wiphy_name(priv->hw->wiphy), priv->essid_size,
1462                  priv->essid, hex2str(priv->essid, IW_ESSID_MAX_SIZE),
1463                  priv->iw_mode == IW_MODE_ADHOC ? "adhoc" : "infra",
1464                  priv->channel, priv->wep_enabled ? "enabled" : "disabled",
1465                  priv->wep_key_id, priv->wep_keys_len[priv->wep_key_id]);
1466         at76_dbg(DBG_PARAMS,
1467                  "%s param: preamble %s rts %d retry %d frag %d "
1468                  "txrate %s auth_mode %d", wiphy_name(priv->hw->wiphy),
1469                  preambles[priv->preamble_type], priv->rts_threshold,
1470                  priv->short_retry_limit, priv->frag_threshold,
1471                  priv->txrate == TX_RATE_1MBIT ? "1MBit" : priv->txrate ==
1472                  TX_RATE_2MBIT ? "2MBit" : priv->txrate ==
1473                  TX_RATE_5_5MBIT ? "5.5MBit" : priv->txrate ==
1474                  TX_RATE_11MBIT ? "11MBit" : priv->txrate ==
1475                  TX_RATE_AUTO ? "auto" : "<invalid>", priv->auth_mode);
1476         at76_dbg(DBG_PARAMS,
1477                  "%s param: pm_mode %d pm_period %d auth_mode %s "
1478                  "scan_times %d %d scan_mode %s",
1479                  wiphy_name(priv->hw->wiphy), priv->pm_mode, priv->pm_period,
1480                  priv->auth_mode == WLAN_AUTH_OPEN ? "open" : "shared_secret",
1481                  priv->scan_min_time, priv->scan_max_time,
1482                  priv->scan_mode == SCAN_TYPE_ACTIVE ? "active" : "passive");
1483
1484         memset(ccfg, 0, sizeof(struct at76_card_config));
1485         ccfg->promiscuous_mode = 0;
1486         ccfg->short_retry_limit = priv->short_retry_limit;
1487
1488         if (priv->wep_enabled) {
1489                 if (priv->wep_keys_len[priv->wep_key_id] > WEP_SMALL_KEY_LEN)
1490                         ccfg->encryption_type = 2;
1491                 else
1492                         ccfg->encryption_type = 1;
1493
1494                 /* jal: always exclude unencrypted if WEP is active */
1495                 ccfg->exclude_unencrypted = 1;
1496         } else {
1497                 ccfg->exclude_unencrypted = 0;
1498                 ccfg->encryption_type = 0;
1499         }
1500
1501         ccfg->rts_threshold = cpu_to_le16(priv->rts_threshold);
1502         ccfg->fragmentation_threshold = cpu_to_le16(priv->frag_threshold);
1503
1504         memcpy(ccfg->basic_rate_set, hw_rates, 4);
1505         /* jal: really needed, we do a set_mib for autorate later ??? */
1506         ccfg->auto_rate_fallback = (priv->txrate == TX_RATE_AUTO ? 1 : 0);
1507         ccfg->channel = priv->channel;
1508         ccfg->privacy_invoked = priv->wep_enabled;
1509         memcpy(ccfg->current_ssid, priv->essid, IW_ESSID_MAX_SIZE);
1510         ccfg->ssid_len = priv->essid_size;
1511
1512         ccfg->wep_default_key_id = priv->wep_key_id;
1513         memcpy(ccfg->wep_default_key_value, priv->wep_keys,
1514                sizeof(priv->wep_keys));
1515
1516         ccfg->short_preamble = priv->preamble_type;
1517         ccfg->beacon_period = cpu_to_le16(priv->beacon_period);
1518
1519         ret = at76_set_card_command(priv->udev, CMD_STARTUP, &priv->card_config,
1520                                     sizeof(struct at76_card_config));
1521         if (ret < 0) {
1522                 printk(KERN_ERR "%s: at76_set_card_command failed: %d\n",
1523                        wiphy_name(priv->hw->wiphy), ret);
1524                 return ret;
1525         }
1526
1527         at76_wait_completion(priv, CMD_STARTUP);
1528
1529         /* remove BSSID from previous run */
1530         memset(priv->bssid, 0, ETH_ALEN);
1531
1532         if (at76_set_radio(priv, 1) == 1)
1533                 at76_wait_completion(priv, CMD_RADIO_ON);
1534
1535         ret = at76_set_preamble(priv, priv->preamble_type);
1536         if (ret < 0)
1537                 return ret;
1538
1539         ret = at76_set_frag(priv, priv->frag_threshold);
1540         if (ret < 0)
1541                 return ret;
1542
1543         ret = at76_set_rts(priv, priv->rts_threshold);
1544         if (ret < 0)
1545                 return ret;
1546
1547         ret = at76_set_autorate_fallback(priv,
1548                                          priv->txrate == TX_RATE_AUTO ? 1 : 0);
1549         if (ret < 0)
1550                 return ret;
1551
1552         ret = at76_set_pm_mode(priv);
1553         if (ret < 0)
1554                 return ret;
1555
1556         if (at76_debug & DBG_MIB) {
1557                 at76_dump_mib_mac(priv);
1558                 at76_dump_mib_mac_addr(priv);
1559                 at76_dump_mib_mac_mgmt(priv);
1560                 at76_dump_mib_mac_wep(priv);
1561                 at76_dump_mib_mdomain(priv);
1562                 at76_dump_mib_phy(priv);
1563                 at76_dump_mib_local(priv);
1564         }
1565
1566         return 0;
1567 }
1568
1569 /* Enable or disable promiscuous mode */
1570 static void at76_work_set_promisc(struct work_struct *work)
1571 {
1572         struct at76_priv *priv = container_of(work, struct at76_priv,
1573                                               work_set_promisc);
1574         int ret = 0;
1575
1576         mutex_lock(&priv->mtx);
1577
1578         priv->mib_buf.type = MIB_LOCAL;
1579         priv->mib_buf.size = 1;
1580         priv->mib_buf.index = offsetof(struct mib_local, promiscuous_mode);
1581         priv->mib_buf.data.byte = priv->promisc ? 1 : 0;
1582
1583         ret = at76_set_mib(priv, &priv->mib_buf);
1584         if (ret < 0)
1585                 printk(KERN_ERR "%s: set_mib (promiscuous_mode) failed: %d\n",
1586                        wiphy_name(priv->hw->wiphy), ret);
1587
1588         mutex_unlock(&priv->mtx);
1589 }
1590
1591 /* Submit Rx urb back to the device */
1592 static void at76_work_submit_rx(struct work_struct *work)
1593 {
1594         struct at76_priv *priv = container_of(work, struct at76_priv,
1595                                               work_submit_rx);
1596
1597         mutex_lock(&priv->mtx);
1598         at76_submit_rx_urb(priv);
1599         mutex_unlock(&priv->mtx);
1600 }
1601
1602 static void at76_rx_tasklet(unsigned long param)
1603 {
1604         struct urb *urb = (struct urb *)param;
1605         struct at76_priv *priv = urb->context;
1606         struct at76_rx_buffer *buf;
1607         struct ieee80211_rx_status rx_status = { 0 };
1608
1609         if (priv->device_unplugged) {
1610                 at76_dbg(DBG_DEVSTART, "device unplugged");
1611                 if (urb)
1612                         at76_dbg(DBG_DEVSTART, "urb status %d", urb->status);
1613                 return;
1614         }
1615
1616         if (!priv->rx_skb || !priv->rx_skb->data)
1617                 return;
1618
1619         buf = (struct at76_rx_buffer *)priv->rx_skb->data;
1620
1621         if (urb->status != 0) {
1622                 if (urb->status != -ENOENT && urb->status != -ECONNRESET)
1623                         at76_dbg(DBG_URB,
1624                                  "%s %s: - nonzero Rx bulk status received: %d",
1625                                  __func__, wiphy_name(priv->hw->wiphy),
1626                                  urb->status);
1627                 return;
1628         }
1629
1630         at76_dbg(DBG_RX_ATMEL_HDR,
1631                  "%s: rx frame: rate %d rssi %d noise %d link %d",
1632                  wiphy_name(priv->hw->wiphy), buf->rx_rate, buf->rssi,
1633                  buf->noise_level, buf->link_quality);
1634
1635         skb_trim(priv->rx_skb, le16_to_cpu(buf->wlength) + AT76_RX_HDRLEN);
1636         at76_dbg_dump(DBG_RX_DATA, &priv->rx_skb->data[AT76_RX_HDRLEN],
1637                       priv->rx_skb->len, "RX: len=%d",
1638                       (int)(priv->rx_skb->len - AT76_RX_HDRLEN));
1639
1640         rx_status.signal = buf->rssi;
1641         /* FIXME: is rate_idx still present in structure? */
1642         rx_status.rate_idx = buf->rx_rate;
1643         rx_status.flag |= RX_FLAG_DECRYPTED;
1644         rx_status.flag |= RX_FLAG_IV_STRIPPED;
1645
1646         skb_pull(priv->rx_skb, AT76_RX_HDRLEN);
1647         at76_dbg(DBG_MAC80211, "calling ieee80211_rx_irqsafe(): %d/%d",
1648                  priv->rx_skb->len, priv->rx_skb->data_len);
1649         ieee80211_rx_irqsafe(priv->hw, priv->rx_skb, &rx_status);
1650
1651         /* Use a new skb for the next receive */
1652         priv->rx_skb = NULL;
1653
1654         at76_submit_rx_urb(priv);
1655 }
1656
1657 /* Load firmware into kernel memory and parse it */
1658 static struct fwentry *at76_load_firmware(struct usb_device *udev,
1659                                           enum board_type board_type)
1660 {
1661         int ret;
1662         char *str;
1663         struct at76_fw_header *fwh;
1664         struct fwentry *fwe = &firmwares[board_type];
1665
1666         mutex_lock(&fw_mutex);
1667
1668         if (fwe->loaded) {
1669                 at76_dbg(DBG_FW, "re-using previously loaded fw");
1670                 goto exit;
1671         }
1672
1673         at76_dbg(DBG_FW, "downloading firmware %s", fwe->fwname);
1674         ret = request_firmware(&fwe->fw, fwe->fwname, &udev->dev);
1675         if (ret < 0) {
1676                 dev_printk(KERN_ERR, &udev->dev, "firmware %s not found!\n",
1677                            fwe->fwname);
1678                 dev_printk(KERN_ERR, &udev->dev,
1679                            "you may need to download the firmware from "
1680                            "http://developer.berlios.de/projects/at76c503a/\n");
1681                 goto exit;
1682         }
1683
1684         at76_dbg(DBG_FW, "got it.");
1685         fwh = (struct at76_fw_header *)(fwe->fw->data);
1686
1687         if (fwe->fw->size <= sizeof(*fwh)) {
1688                 dev_printk(KERN_ERR, &udev->dev,
1689                            "firmware is too short (0x%zx)\n", fwe->fw->size);
1690                 goto exit;
1691         }
1692
1693         /* CRC currently not checked */
1694         fwe->board_type = le32_to_cpu(fwh->board_type);
1695         if (fwe->board_type != board_type) {
1696                 dev_printk(KERN_ERR, &udev->dev,
1697                            "board type mismatch, requested %u, got %u\n",
1698                            board_type, fwe->board_type);
1699                 goto exit;
1700         }
1701
1702         fwe->fw_version.major = fwh->major;
1703         fwe->fw_version.minor = fwh->minor;
1704         fwe->fw_version.patch = fwh->patch;
1705         fwe->fw_version.build = fwh->build;
1706
1707         str = (char *)fwh + le32_to_cpu(fwh->str_offset);
1708         fwe->intfw = (u8 *)fwh + le32_to_cpu(fwh->int_fw_offset);
1709         fwe->intfw_size = le32_to_cpu(fwh->int_fw_len);
1710         fwe->extfw = (u8 *)fwh + le32_to_cpu(fwh->ext_fw_offset);
1711         fwe->extfw_size = le32_to_cpu(fwh->ext_fw_len);
1712
1713         fwe->loaded = 1;
1714
1715         dev_printk(KERN_DEBUG, &udev->dev,
1716                    "using firmware %s (version %d.%d.%d-%d)\n",
1717                    fwe->fwname, fwh->major, fwh->minor, fwh->patch, fwh->build);
1718
1719         at76_dbg(DBG_DEVSTART, "board %u, int %d:%d, ext %d:%d", board_type,
1720                  le32_to_cpu(fwh->int_fw_offset), le32_to_cpu(fwh->int_fw_len),
1721                  le32_to_cpu(fwh->ext_fw_offset), le32_to_cpu(fwh->ext_fw_len));
1722         at76_dbg(DBG_DEVSTART, "firmware id %s", str);
1723
1724 exit:
1725         mutex_unlock(&fw_mutex);
1726
1727         if (fwe->loaded)
1728                 return fwe;
1729         else
1730                 return NULL;
1731 }
1732
1733 static void at76_mac80211_tx_callback(struct urb *urb)
1734 {
1735         struct at76_priv *priv = urb->context;
1736         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(priv->tx_skb);
1737
1738         at76_dbg(DBG_MAC80211, "%s()", __func__);
1739
1740         switch (urb->status) {
1741         case 0:
1742                 /* success */
1743                 /* FIXME:
1744                  * is the frame really ACKed when tx_callback is called ? */
1745                 info->flags |= IEEE80211_TX_STAT_ACK;
1746                 break;
1747         case -ENOENT:
1748         case -ECONNRESET:
1749                 /* fail, urb has been unlinked */
1750                 /* FIXME: add error message */
1751                 break;
1752         default:
1753                 at76_dbg(DBG_URB, "%s - nonzero tx status received: %d",
1754                          __func__, urb->status);
1755                 break;
1756         }
1757
1758         memset(&info->status, 0, sizeof(info->status));
1759
1760         ieee80211_tx_status_irqsafe(priv->hw, priv->tx_skb);
1761
1762         priv->tx_skb = NULL;
1763
1764         ieee80211_wake_queues(priv->hw);
1765 }
1766
1767 static int at76_mac80211_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
1768 {
1769         struct at76_priv *priv = hw->priv;
1770         struct at76_tx_buffer *tx_buffer = priv->bulk_out_buffer;
1771         struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1772         int padding, submit_len, ret;
1773
1774         at76_dbg(DBG_MAC80211, "%s()", __func__);
1775
1776         if (priv->tx_urb->status == -EINPROGRESS) {
1777                 printk(KERN_ERR "%s: %s called while tx urb is pending\n",
1778                        wiphy_name(priv->hw->wiphy), __func__);
1779                 return NETDEV_TX_BUSY;
1780         }
1781
1782         ieee80211_stop_queues(hw);
1783
1784         at76_ledtrig_tx_activity();     /* tell ledtrigger we send a packet */
1785
1786         WARN_ON(priv->tx_skb != NULL);
1787
1788         priv->tx_skb = skb;
1789         padding = at76_calc_padding(skb->len);
1790         submit_len = AT76_TX_HDRLEN + skb->len + padding;
1791
1792         /* setup 'Atmel' header */
1793         memset(tx_buffer, 0, sizeof(*tx_buffer));
1794         tx_buffer->padding = padding;
1795         tx_buffer->wlength = cpu_to_le16(skb->len);
1796         tx_buffer->tx_rate = ieee80211_get_tx_rate(hw, info)->hw_value;
1797         if (FIRMWARE_IS_WPA(priv->fw_version) && info->control.hw_key) {
1798                 tx_buffer->key_id = (info->control.hw_key->keyidx);
1799                 tx_buffer->cipher_type =
1800                         priv->keys[info->control.hw_key->keyidx].cipher;
1801                 tx_buffer->cipher_length =
1802                         priv->keys[info->control.hw_key->keyidx].keylen;
1803                 tx_buffer->reserved = 0;
1804         } else {
1805                 tx_buffer->key_id = 0;
1806                 tx_buffer->cipher_type = 0;
1807                 tx_buffer->cipher_length = 0;
1808                 tx_buffer->reserved = 0;
1809         };
1810         /* memset(tx_buffer->reserved, 0, sizeof(tx_buffer->reserved)); */
1811         memcpy(tx_buffer->packet, skb->data, skb->len);
1812
1813         at76_dbg(DBG_TX_DATA, "%s tx: wlen 0x%x pad 0x%x rate %d hdr",
1814                  wiphy_name(priv->hw->wiphy), le16_to_cpu(tx_buffer->wlength),
1815                  tx_buffer->padding, tx_buffer->tx_rate);
1816
1817         /* send stuff */
1818         at76_dbg_dump(DBG_TX_DATA_CONTENT, tx_buffer, submit_len,
1819                       "%s(): tx_buffer %d bytes:", __func__, submit_len);
1820         usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, tx_buffer,
1821                           submit_len, at76_mac80211_tx_callback, priv);
1822         ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC);
1823         if (ret) {
1824                 printk(KERN_ERR "%s: error in tx submit urb: %d\n",
1825                        wiphy_name(priv->hw->wiphy), ret);
1826                 if (ret == -EINVAL)
1827                         printk(KERN_ERR
1828                                "%s: -EINVAL: tx urb %p hcpriv %p complete %p\n",
1829                                wiphy_name(priv->hw->wiphy), priv->tx_urb,
1830                                priv->tx_urb->hcpriv, priv->tx_urb->complete);
1831         }
1832
1833         return 0;
1834 }
1835
1836 static int at76_mac80211_start(struct ieee80211_hw *hw)
1837 {
1838         struct at76_priv *priv = hw->priv;
1839         int ret;
1840
1841         at76_dbg(DBG_MAC80211, "%s()", __func__);
1842
1843         mutex_lock(&priv->mtx);
1844
1845         ret = at76_submit_rx_urb(priv);
1846         if (ret < 0) {
1847                 printk(KERN_ERR "%s: open: submit_rx_urb failed: %d\n",
1848                        wiphy_name(priv->hw->wiphy), ret);
1849                 goto error;
1850         }
1851
1852         at76_startup_device(priv);
1853
1854         at76_start_monitor(priv);
1855
1856 error:
1857         mutex_unlock(&priv->mtx);
1858
1859         return 0;
1860 }
1861
1862 static void at76_mac80211_stop(struct ieee80211_hw *hw)
1863 {
1864         struct at76_priv *priv = hw->priv;
1865
1866         at76_dbg(DBG_MAC80211, "%s()", __func__);
1867
1868         mutex_lock(&priv->mtx);
1869
1870         if (!priv->device_unplugged) {
1871                 /* We are called by "ifconfig ethX down", not because the
1872                  * device is not available anymore. */
1873                 if (at76_set_radio(priv, 0) == 1)
1874                         at76_wait_completion(priv, CMD_RADIO_ON);
1875
1876                 /* We unlink rx_urb because at76_open() re-submits it.
1877                  * If unplugged, at76_delete_device() takes care of it. */
1878                 usb_kill_urb(priv->rx_urb);
1879         }
1880
1881         mutex_unlock(&priv->mtx);
1882 }
1883
1884 static int at76_add_interface(struct ieee80211_hw *hw,
1885                               struct ieee80211_if_init_conf *conf)
1886 {
1887         struct at76_priv *priv = hw->priv;
1888         int ret = 0;
1889
1890         at76_dbg(DBG_MAC80211, "%s()", __func__);
1891
1892         mutex_lock(&priv->mtx);
1893
1894         switch (conf->type) {
1895         case NL80211_IFTYPE_STATION:
1896                 priv->iw_mode = IW_MODE_INFRA;
1897                 break;
1898         default:
1899                 ret = -EOPNOTSUPP;
1900                 goto exit;
1901         }
1902
1903 exit:
1904         mutex_unlock(&priv->mtx);
1905
1906         return ret;
1907 }
1908
1909 static void at76_remove_interface(struct ieee80211_hw *hw,
1910                                   struct ieee80211_if_init_conf *conf)
1911 {
1912         at76_dbg(DBG_MAC80211, "%s()", __func__);
1913 }
1914
1915 static int at76_join(struct at76_priv *priv)
1916 {
1917         struct at76_req_join join;
1918         int ret;
1919
1920         memset(&join, 0, sizeof(struct at76_req_join));
1921         memcpy(join.essid, priv->essid, priv->essid_size);
1922         join.essid_size = priv->essid_size;
1923         memcpy(join.bssid, priv->bssid, ETH_ALEN);
1924         join.bss_type = INFRASTRUCTURE_MODE;
1925         join.channel = priv->channel;
1926         join.timeout = cpu_to_le16(2000);
1927
1928         at76_dbg(DBG_MAC80211, "%s: sending CMD_JOIN", __func__);
1929         ret = at76_set_card_command(priv->udev, CMD_JOIN, &join,
1930                                     sizeof(struct at76_req_join));
1931
1932         if (ret < 0) {
1933                 printk(KERN_ERR "%s: at76_set_card_command failed: %d\n",
1934                        wiphy_name(priv->hw->wiphy), ret);
1935                 return 0;
1936         }
1937
1938         ret = at76_wait_completion(priv, CMD_JOIN);
1939         at76_dbg(DBG_MAC80211, "%s: CMD_JOIN returned: 0x%02x", __func__, ret);
1940         if (ret != CMD_STATUS_COMPLETE) {
1941                 printk(KERN_ERR "%s: at76_wait_completion failed: %d\n",
1942                        wiphy_name(priv->hw->wiphy), ret);
1943                 return 0;
1944         }
1945
1946         at76_set_tkip_bssid(priv, priv->bssid);
1947         at76_set_pm_mode(priv);
1948
1949         return 0;
1950 }
1951
1952 static void at76_dwork_hw_scan(struct work_struct *work)
1953 {
1954         struct at76_priv *priv = container_of(work, struct at76_priv,
1955                                               dwork_hw_scan.work);
1956         int ret;
1957
1958         ret = at76_get_cmd_status(priv->udev, CMD_SCAN);
1959         at76_dbg(DBG_MAC80211, "%s: CMD_SCAN status 0x%02x", __func__, ret);
1960
1961         /* FIXME: add maximum time for scan to complete */
1962
1963         if (ret != CMD_STATUS_COMPLETE) {
1964                 queue_delayed_work(priv->hw->workqueue, &priv->dwork_hw_scan,
1965                                    SCAN_POLL_INTERVAL);
1966                 goto exit;
1967         }
1968
1969         ieee80211_scan_completed(priv->hw);
1970
1971         if (is_valid_ether_addr(priv->bssid)) {
1972                 ieee80211_wake_queues(priv->hw);
1973                 at76_join(priv);
1974         }
1975
1976         ieee80211_wake_queues(priv->hw);
1977
1978 exit:
1979         return;
1980 }
1981
1982 static int at76_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len)
1983 {
1984         struct at76_priv *priv = hw->priv;
1985         struct at76_req_scan scan;
1986         int ret;
1987
1988         at76_dbg(DBG_MAC80211, "%s():", __func__);
1989         at76_dbg_dump(DBG_MAC80211, ssid, len, "ssid %zd bytes:", len);
1990
1991         mutex_lock(&priv->mtx);
1992
1993         ieee80211_stop_queues(hw);
1994
1995         memset(&scan, 0, sizeof(struct at76_req_scan));
1996         memset(scan.bssid, 0xFF, ETH_ALEN);
1997         scan.scan_type = SCAN_TYPE_ACTIVE;
1998         if (priv->essid_size > 0) {
1999                 memcpy(scan.essid, ssid, len);
2000                 scan.essid_size = len;
2001         }
2002         scan.min_channel_time = cpu_to_le16(priv->scan_min_time);
2003         scan.max_channel_time = cpu_to_le16(priv->scan_max_time);
2004         scan.probe_delay = cpu_to_le16(priv->scan_min_time * 1000);
2005         scan.international_scan = 0;
2006
2007         at76_dbg(DBG_MAC80211, "%s: sending CMD_SCAN", __func__);
2008         ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan));
2009
2010         if (ret < 0) {
2011                 err("CMD_SCAN failed: %d", ret);
2012                 goto exit;
2013         }
2014
2015         queue_delayed_work(priv->hw->workqueue, &priv->dwork_hw_scan,
2016                            SCAN_POLL_INTERVAL);
2017
2018 exit:
2019         mutex_unlock(&priv->mtx);
2020
2021         return 0;
2022 }
2023
2024 static int at76_config(struct ieee80211_hw *hw, u32 changed)
2025 {
2026         struct at76_priv *priv = hw->priv;
2027         struct ieee80211_conf *conf = &hw->conf;
2028
2029         at76_dbg(DBG_MAC80211, "%s(): channel %d radio %d",
2030                  __func__, conf->channel->hw_value, conf->radio_enabled);
2031         at76_dbg_dump(DBG_MAC80211, priv->essid, priv->essid_size, "ssid:");
2032         at76_dbg_dump(DBG_MAC80211, priv->bssid, ETH_ALEN, "bssid:");
2033
2034         mutex_lock(&priv->mtx);
2035
2036         priv->channel = conf->channel->hw_value;
2037
2038         if (is_valid_ether_addr(priv->bssid)) {
2039                 at76_join(priv);
2040                 ieee80211_wake_queues(priv->hw);
2041         } else {
2042                 ieee80211_stop_queues(priv->hw);
2043                 at76_start_monitor(priv);
2044         };
2045
2046         mutex_unlock(&priv->mtx);
2047
2048         return 0;
2049 }
2050
2051 static int at76_config_interface(struct ieee80211_hw *hw,
2052                                  struct ieee80211_vif *vif,
2053                                  struct ieee80211_if_conf *conf)
2054 {
2055         struct at76_priv *priv = hw->priv;
2056
2057         at76_dbg_dump(DBG_MAC80211, conf->bssid, ETH_ALEN, "bssid:");
2058
2059         mutex_lock(&priv->mtx);
2060
2061         memcpy(priv->bssid, conf->bssid, ETH_ALEN);
2062 //      memcpy(priv->essid, conf->ssid, conf->ssid_len);
2063 //      priv->essid_size = conf->ssid_len;
2064
2065         if (is_valid_ether_addr(priv->bssid)) {
2066                 /* mac80211 is joining a bss */
2067                 ieee80211_wake_queues(priv->hw);
2068                 at76_join(priv);
2069         } else
2070                 ieee80211_stop_queues(priv->hw);
2071
2072         mutex_unlock(&priv->mtx);
2073
2074         return 0;
2075 }
2076
2077 /* must be atomic */
2078 static void at76_configure_filter(struct ieee80211_hw *hw,
2079                                   unsigned int changed_flags,
2080                                   unsigned int *total_flags, int mc_count,
2081                                   struct dev_addr_list *mc_list)
2082 {
2083         struct at76_priv *priv = hw->priv;
2084         int flags;
2085
2086         at76_dbg(DBG_MAC80211, "%s(): changed_flags=0x%08x "
2087                  "total_flags=0x%08x mc_count=%d",
2088                  __func__, changed_flags, *total_flags, mc_count);
2089
2090         flags = changed_flags & AT76_SUPPORTED_FILTERS;
2091         *total_flags = AT76_SUPPORTED_FILTERS;
2092
2093         /* FIXME: access to priv->promisc should be protected with
2094          * priv->mtx, but it's impossible because this function needs to be
2095          * atomic */
2096
2097         if (flags && !priv->promisc) {
2098                 /* mac80211 wants us to enable promiscuous mode */
2099                 priv->promisc = 1;
2100         } else if (!flags && priv->promisc) {
2101                 /* we need to disable promiscuous mode */
2102                 priv->promisc = 0;
2103         } else
2104                 return;
2105
2106         queue_work(hw->workqueue, &priv->work_set_promisc);
2107 }
2108
2109 static int at76_set_key_oldfw(struct ieee80211_hw *hw, enum set_key_cmd cmd,
2110                         const u8 *local_address, const u8 *address,
2111                         struct ieee80211_key_conf *key)
2112 {
2113         struct at76_priv *priv = hw->priv;
2114
2115         int i;
2116
2117         at76_dbg(DBG_MAC80211, "%s(): cmd %d key->alg %d key->keyidx %d "
2118                  "key->keylen %d",
2119                  __func__, cmd, key->alg, key->keyidx, key->keylen);
2120
2121         if (key->alg != ALG_WEP)
2122                 return -EOPNOTSUPP;
2123
2124         key->hw_key_idx = key->keyidx;
2125
2126         mutex_lock(&priv->mtx);
2127
2128         switch (cmd) {
2129         case SET_KEY:
2130                 memcpy(priv->wep_keys[key->keyidx], key->key, key->keylen);
2131                 priv->wep_keys_len[key->keyidx] = key->keylen;
2132
2133                 /* FIXME: find out how to do this properly */
2134                 priv->wep_key_id = key->keyidx;
2135
2136                 break;
2137         case DISABLE_KEY:
2138         default:
2139                 priv->wep_keys_len[key->keyidx] = 0;
2140                 break;
2141         }
2142
2143         priv->wep_enabled = 0;
2144
2145         for (i = 0; i < WEP_KEYS; i++) {
2146                 if (priv->wep_keys_len[i] != 0)
2147                         priv->wep_enabled = 1;
2148         }
2149
2150         at76_startup_device(priv);
2151
2152         mutex_unlock(&priv->mtx);
2153
2154         return 0;
2155 }
2156
2157 static int at76_set_key_newfw(struct ieee80211_hw *hw, enum set_key_cmd cmd,
2158                         const u8 *local_address, const u8 *address,
2159                         struct ieee80211_key_conf *key)
2160 {
2161         struct at76_priv *priv = hw->priv;
2162         int ret = -EOPNOTSUPP;
2163
2164         at76_dbg(DBG_MAC80211, "%s(): cmd %d key->alg %d key->keyidx %d "
2165                  "key->keylen %d",
2166                  __func__, cmd, key->alg, key->keyidx, key->keylen);
2167
2168         mutex_lock(&priv->mtx);
2169
2170         priv->mib_buf.type = MIB_MAC_ENCRYPTION;
2171
2172         if (cmd == DISABLE_KEY) {
2173                 priv->mib_buf.size = CIPHER_KEY_LEN;
2174                 priv->mib_buf.index = offsetof(struct mib_mac_encryption,
2175                                 cipher_default_keyvalue[key->keyidx]);
2176                 memset(priv->mib_buf.data.data, 0, CIPHER_KEY_LEN);
2177                 if (at76_set_mib(priv, &priv->mib_buf) != CMD_STATUS_COMPLETE)
2178                         ret = -EOPNOTSUPP; /* -EIO would be probably better */
2179                 else {
2180
2181                         priv->keys[key->keyidx].cipher = CIPHER_NONE;
2182                         priv->keys[key->keyidx].keylen = 0;
2183                 };
2184                 if (priv->default_group_key == key->keyidx)
2185                         priv->default_group_key = 0xff;
2186
2187                 if (priv->default_pairwise_key == key->keyidx)
2188                         priv->default_pairwise_key = 0xff;
2189                 /* If default pairwise key is removed, fall back to
2190                  * group key? */
2191                 ret = 0;
2192                 goto exit;
2193         };
2194
2195         if (cmd == SET_KEY) {
2196                 /* store key into MIB */
2197                 priv->mib_buf.size = CIPHER_KEY_LEN;
2198                 priv->mib_buf.index = offsetof(struct mib_mac_encryption,
2199                                 cipher_default_keyvalue[key->keyidx]);
2200                 memset(priv->mib_buf.data.data, 0, CIPHER_KEY_LEN);
2201                 memcpy(priv->mib_buf.data.data, key->key, key->keylen);
2202
2203                 switch (key->alg) {
2204                 case ALG_WEP:
2205                         if (key->keylen == 5) {
2206                                 priv->keys[key->keyidx].cipher =
2207                                         CIPHER_WEP64;
2208                                 priv->keys[key->keyidx].keylen = 8;
2209                         } else if (key->keylen == 13) {
2210                                 priv->keys[key->keyidx].cipher =
2211                                         CIPHER_WEP128;
2212                                 /* Firmware needs this */
2213                                 priv->keys[key->keyidx].keylen = 8;
2214                         } else {
2215                                 ret = -EOPNOTSUPP;
2216                                 goto exit;
2217                         };
2218                         break;
2219                 case ALG_TKIP:
2220                         key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2221                         priv->keys[key->keyidx].cipher = CIPHER_TKIP;
2222                         priv->keys[key->keyidx].keylen = 12;
2223                         break;
2224
2225                 case ALG_CCMP:
2226                         if (!at76_is_505a(priv->board_type)) {
2227                                 ret = -EOPNOTSUPP;
2228                                 goto exit;
2229                         };
2230                         key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2231                         priv->keys[key->keyidx].cipher = CIPHER_CCMP;
2232                         priv->keys[key->keyidx].keylen = 16;
2233                         break;
2234
2235                 default:
2236                         ret = -EOPNOTSUPP;
2237                         goto exit;
2238                 };
2239
2240                 priv->mib_buf.data.data[38] = priv->keys[key->keyidx].cipher;
2241                 priv->mib_buf.data.data[39] = 1; /* Taken from atmelwlandriver,
2242                                                     not documented */
2243
2244                 if (is_valid_ether_addr(address))
2245                         /* Pairwise key */
2246                         priv->mib_buf.data.data[39] |= (KEY_PAIRWISE | KEY_TX);
2247                 else if (is_broadcast_ether_addr(address))
2248                         /* Group key */
2249                         priv->mib_buf.data.data[39] |= (KEY_TX);
2250                 else    /* Key used only for transmission ??? */
2251                         priv->mib_buf.data.data[39] |= (KEY_TX);
2252
2253                 if (at76_set_mib(priv, &priv->mib_buf) !=
2254                                 CMD_STATUS_COMPLETE) {
2255                         ret = -EOPNOTSUPP; /* -EIO would be probably better */
2256                         goto exit;
2257                 };
2258
2259                 if ((key->alg == ALG_TKIP) || (key->alg == ALG_CCMP))
2260                         at76_reset_rsc(priv);
2261
2262                 key->hw_key_idx = key->keyidx;
2263
2264                 /* Set up default keys */
2265                 if (is_broadcast_ether_addr(address))
2266                         priv->default_group_key = key->keyidx;
2267                 if (is_valid_ether_addr(address))
2268                         priv->default_pairwise_key = key->keyidx;
2269
2270                 /* Set up encryption MIBs */
2271
2272                 /* first block of settings */
2273                 priv->mib_buf.size = 3;
2274                 priv->mib_buf.index = offsetof(struct mib_mac_encryption,
2275                                 privacy_invoked);
2276                 priv->mib_buf.data.data[0] = 1; /* privacy_invoked */
2277                 priv->mib_buf.data.data[1] = priv->default_pairwise_key;
2278                 priv->mib_buf.data.data[2] = priv->default_group_key;
2279
2280                 ret = at76_set_mib(priv, &priv->mib_buf);
2281                 if (ret != CMD_STATUS_COMPLETE)
2282                         goto exit;
2283
2284                 /* second block of settings */
2285                 priv->mib_buf.size = 3;
2286                 priv->mib_buf.index = offsetof(struct mib_mac_encryption,
2287                                 exclude_unencrypted);
2288                 priv->mib_buf.data.data[0] = 1; /* exclude_unencrypted */
2289                 priv->mib_buf.data.data[1] = 0; /* wep_encryption_type */
2290                 priv->mib_buf.data.data[2] = 0; /* ckip_key_permutation */
2291
2292                 ret = at76_set_mib(priv, &priv->mib_buf);
2293                 if (ret != CMD_STATUS_COMPLETE)
2294                         goto exit;
2295                 ret = 0;
2296         };
2297 exit:
2298         at76_dump_mib_mac_encryption(priv);
2299         mutex_unlock(&priv->mtx);
2300         return ret;
2301 }
2302
2303 static int at76_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
2304                         const u8 *local_address, const u8 *address,
2305                         struct ieee80211_key_conf *key)
2306 {
2307         struct at76_priv *priv = hw->priv;
2308
2309         at76_dbg(DBG_MAC80211, "%s(): cmd %d key->alg %d key->keyidx %d "
2310                  "key->keylen %d",
2311                  __func__, cmd, key->alg, key->keyidx, key->keylen);
2312
2313         if (FIRMWARE_IS_WPA(priv->fw_version))
2314                 return at76_set_key_newfw(hw, cmd, local_address, address, key);
2315         else
2316                 return at76_set_key_oldfw(hw, cmd, local_address, address, key);
2317
2318 }
2319
2320 static const struct ieee80211_ops at76_ops = {
2321         .tx = at76_mac80211_tx,
2322         .add_interface = at76_add_interface,
2323         .remove_interface = at76_remove_interface,
2324         .config = at76_config,
2325         .config_interface = at76_config_interface,
2326         .configure_filter = at76_configure_filter,
2327         .start = at76_mac80211_start,
2328         .stop = at76_mac80211_stop,
2329         .hw_scan = at76_hw_scan,
2330         .set_key = at76_set_key,
2331 };
2332
2333 /* Allocate network device and initialize private data */
2334 static struct at76_priv *at76_alloc_new_device(struct usb_device *udev)
2335 {
2336         struct ieee80211_hw *hw;
2337         struct at76_priv *priv;
2338
2339         hw = ieee80211_alloc_hw(sizeof(struct at76_priv), &at76_ops);
2340         if (!hw) {
2341                 printk(KERN_ERR DRIVER_NAME ": could not register"
2342                        " ieee80211_hw\n");
2343                 return NULL;
2344         }
2345
2346         priv = hw->priv;
2347         priv->hw = hw;
2348
2349         priv->udev = udev;
2350
2351         mutex_init(&priv->mtx);
2352         INIT_WORK(&priv->work_set_promisc, at76_work_set_promisc);
2353         INIT_WORK(&priv->work_submit_rx, at76_work_submit_rx);
2354         INIT_DELAYED_WORK(&priv->dwork_hw_scan, at76_dwork_hw_scan);
2355
2356         priv->rx_tasklet.func = at76_rx_tasklet;
2357         priv->rx_tasklet.data = 0;
2358
2359         priv->pm_mode = AT76_PM_OFF;
2360         priv->pm_period = 0;
2361
2362         /* unit us */
2363         priv->hw->channel_change_time = 100000;
2364
2365         return priv;
2366 }
2367
2368 static int at76_alloc_urbs(struct at76_priv *priv,
2369                            struct usb_interface *interface)
2370 {
2371         struct usb_endpoint_descriptor *endpoint, *ep_in, *ep_out;
2372         int i;
2373         int buffer_size;
2374         struct usb_host_interface *iface_desc;
2375
2376         at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__);
2377
2378         at76_dbg(DBG_URB, "%s: NumEndpoints %d ", __func__,
2379                  interface->altsetting[0].desc.bNumEndpoints);
2380
2381         ep_in = NULL;
2382         ep_out = NULL;
2383         iface_desc = interface->cur_altsetting;
2384         for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
2385                 endpoint = &iface_desc->endpoint[i].desc;
2386
2387                 at76_dbg(DBG_URB, "%s: %d. endpoint: addr 0x%x attr 0x%x",
2388                          __func__, i, endpoint->bEndpointAddress,
2389                          endpoint->bmAttributes);
2390
2391                 if (!ep_in && usb_endpoint_is_bulk_in(endpoint))
2392                         ep_in = endpoint;
2393
2394                 if (!ep_out && usb_endpoint_is_bulk_out(endpoint))
2395                         ep_out = endpoint;
2396         }
2397
2398         if (!ep_in || !ep_out) {
2399                 dev_printk(KERN_ERR, &interface->dev,
2400                            "bulk endpoints missing\n");
2401                 return -ENXIO;
2402         }
2403
2404         priv->rx_pipe = usb_rcvbulkpipe(priv->udev, ep_in->bEndpointAddress);
2405         priv->tx_pipe = usb_sndbulkpipe(priv->udev, ep_out->bEndpointAddress);
2406
2407         priv->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
2408         priv->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
2409         if (!priv->rx_urb || !priv->tx_urb) {
2410                 dev_printk(KERN_ERR, &interface->dev, "cannot allocate URB\n");
2411                 return -ENOMEM;
2412         }
2413
2414         buffer_size = sizeof(struct at76_tx_buffer) + MAX_PADDING_SIZE;
2415         priv->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL);
2416         if (!priv->bulk_out_buffer) {
2417                 dev_printk(KERN_ERR, &interface->dev,
2418                            "cannot allocate output buffer\n");
2419                 return -ENOMEM;
2420         }
2421
2422         at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__);
2423
2424         return 0;
2425 }
2426
2427 static struct ieee80211_rate at76_rates[] = {
2428         { .bitrate = 10, .hw_value = TX_RATE_1MBIT, },
2429         { .bitrate = 20, .hw_value = TX_RATE_2MBIT, },
2430         { .bitrate = 55, .hw_value = TX_RATE_5_5MBIT, },
2431         { .bitrate = 110, .hw_value = TX_RATE_11MBIT, },
2432 };
2433
2434 static struct ieee80211_channel at76_channels[] = {
2435         { .center_freq = 2412, .hw_value = 1 },
2436         { .center_freq = 2417, .hw_value = 2 },
2437         { .center_freq = 2422, .hw_value = 3 },
2438         { .center_freq = 2427, .hw_value = 4 },
2439         { .center_freq = 2432, .hw_value = 5 },
2440         { .center_freq = 2437, .hw_value = 6 },
2441         { .center_freq = 2442, .hw_value = 7 },
2442         { .center_freq = 2447, .hw_value = 8 },
2443         { .center_freq = 2452, .hw_value = 9 },
2444         { .center_freq = 2457, .hw_value = 10 },
2445         { .center_freq = 2462, .hw_value = 11 },
2446         { .center_freq = 2467, .hw_value = 12 },
2447         { .center_freq = 2472, .hw_value = 13 },
2448         { .center_freq = 2484, .hw_value = 14 }
2449 };
2450
2451 static struct ieee80211_supported_band at76_supported_band = {
2452         .channels = at76_channels,
2453         .n_channels = ARRAY_SIZE(at76_channels),
2454         .bitrates = at76_rates,
2455         .n_bitrates = ARRAY_SIZE(at76_rates),
2456 };
2457
2458 /* Register network device and initialize the hardware */
2459 static int at76_init_new_device(struct at76_priv *priv,
2460                                 struct usb_interface *interface)
2461 {
2462         struct device *dev = &interface->dev;
2463         int ret;
2464
2465         /* set up the endpoint information */
2466         /* check out the endpoints */
2467
2468         at76_dbg(DBG_DEVSTART, "USB interface: %d endpoints",
2469                  interface->cur_altsetting->desc.bNumEndpoints);
2470
2471         ret = at76_alloc_urbs(priv, interface);
2472         if (ret < 0)
2473                 goto exit;
2474
2475         /* MAC address */
2476         ret = at76_get_hw_config(priv);
2477         if (ret < 0) {
2478                 dev_err(dev, "cannot get MAC address\n");
2479                 goto exit;
2480         }
2481
2482         priv->domain = at76_get_reg_domain(priv->regulatory_domain);
2483
2484         priv->channel = DEF_CHANNEL;
2485         priv->iw_mode = IW_MODE_INFRA;
2486         priv->rts_threshold = DEF_RTS_THRESHOLD;
2487         priv->frag_threshold = DEF_FRAG_THRESHOLD;
2488         priv->short_retry_limit = DEF_SHORT_RETRY_LIMIT;
2489         priv->txrate = TX_RATE_AUTO;
2490         priv->preamble_type = PREAMBLE_TYPE_LONG;
2491         priv->beacon_period = 100;
2492         priv->auth_mode = WLAN_AUTH_OPEN;
2493         priv->scan_min_time = DEF_SCAN_MIN_TIME;
2494         priv->scan_max_time = DEF_SCAN_MAX_TIME;
2495         priv->scan_mode = SCAN_TYPE_ACTIVE;
2496         priv->default_pairwise_key = 0xff;
2497         priv->default_group_key = 0xff;
2498
2499         /* mac80211 initialisation */
2500         priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &at76_supported_band;
2501
2502         if (FIRMWARE_IS_WPA(priv->fw_version) &&
2503                 (at76_is_503rfmd(priv->board_type) ||
2504                  at76_is_505(priv->board_type)))
2505                 priv->hw->flags = IEEE80211_HW_SIGNAL_UNSPEC;
2506         else
2507                 priv->hw->flags = IEEE80211_HW_RX_INCLUDES_FCS |
2508                                   IEEE80211_HW_SIGNAL_UNSPEC;
2509
2510         priv->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
2511
2512         SET_IEEE80211_DEV(priv->hw, &interface->dev);
2513         SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
2514
2515         ret = ieee80211_register_hw(priv->hw);
2516         if (ret) {
2517                 dev_err(dev, "cannot register mac80211 hw (status %d)!\n", ret);
2518                 goto exit;
2519         }
2520
2521         priv->mac80211_registered = 1;
2522
2523         dev_info(dev, "%s: USB %s, MAC %s, firmware %d.%d.%d-%d\n",
2524                  wiphy_name(priv->hw->wiphy),
2525                  interface->dev.bus_id, mac2str(priv->mac_addr),
2526                  priv->fw_version.major, priv->fw_version.minor,
2527                  priv->fw_version.patch, priv->fw_version.build);
2528         dev_info(dev, "%s: regulatory domain 0x%02x: %s\n",
2529                  wiphy_name(priv->hw->wiphy),
2530                  priv->regulatory_domain, priv->domain->name);
2531         dev_info(dev, "%s: WPA support: ", wiphy_name(priv->hw->wiphy));
2532         if (!FIRMWARE_IS_WPA(priv->fw_version))
2533                 printk("none\n");
2534         else {
2535                 if (!at76_is_505a(priv->board_type))
2536                         printk("TKIP\n");
2537                 else
2538                         printk("TKIP, AES/CCMP\n");
2539         };
2540
2541 exit:
2542         return ret;
2543 }
2544
2545 static void at76_delete_device(struct at76_priv *priv)
2546 {
2547         at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__);
2548
2549         /* The device is gone, don't bother turning it off */
2550         priv->device_unplugged = 1;
2551
2552         if (priv->mac80211_registered)
2553                 ieee80211_unregister_hw(priv->hw);
2554
2555         /* assuming we used keventd, it must quiesce too */
2556         flush_scheduled_work();
2557
2558         kfree(priv->bulk_out_buffer);
2559
2560         if (priv->tx_urb) {
2561                 usb_kill_urb(priv->tx_urb);
2562                 usb_free_urb(priv->tx_urb);
2563         }
2564         if (priv->rx_urb) {
2565                 usb_kill_urb(priv->rx_urb);
2566                 usb_free_urb(priv->rx_urb);
2567         }
2568
2569         at76_dbg(DBG_PROC_ENTRY, "%s: unlinked urbs", __func__);
2570
2571         if (priv->rx_skb)
2572                 kfree_skb(priv->rx_skb);
2573
2574         usb_put_dev(priv->udev);
2575
2576         at76_dbg(DBG_PROC_ENTRY, "%s: before freeing priv/ieee80211_hw",
2577                  __func__);
2578         ieee80211_free_hw(priv->hw);
2579
2580         at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__);
2581 }
2582
2583 static int at76_probe(struct usb_interface *interface,
2584                       const struct usb_device_id *id)
2585 {
2586         int ret;
2587         struct at76_priv *priv;
2588         struct fwentry *fwe;
2589         struct usb_device *udev;
2590         int op_mode;
2591         int need_ext_fw = 0;
2592         struct mib_fw_version fwv;
2593         int board_type = (int)id->driver_info;
2594
2595         udev = usb_get_dev(interface_to_usbdev(interface));
2596
2597         /* Load firmware into kernel memory */
2598         fwe = at76_load_firmware(udev, board_type);
2599         if (!fwe) {
2600                 ret = -ENOENT;
2601                 goto error;
2602         }
2603
2604         op_mode = at76_get_op_mode(udev);
2605
2606         at76_dbg(DBG_DEVSTART, "opmode %d", op_mode);
2607
2608         /* we get OPMODE_NONE with 2.4.23, SMC2662W-AR ???
2609            we get 204 with 2.4.23, Fiberline FL-WL240u (505A+RFMD2958) ??? */
2610
2611         if (op_mode == OPMODE_HW_CONFIG_MODE) {
2612                 dev_err(&interface->dev,
2613                         "cannot handle a device in HW_CONFIG_MODE\n");
2614                 ret = -EBUSY;
2615                 goto error;
2616         }
2617
2618         if (op_mode != OPMODE_NORMAL_NIC_WITH_FLASH
2619             && op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) {
2620                 /* download internal firmware part */
2621                 dev_dbg(&interface->dev, "downloading internal firmware\n");
2622                 ret = at76_load_internal_fw(udev, fwe);
2623                 if (ret < 0) {
2624                         dev_err(&interface->dev,
2625                                 "error %d downloading internal firmware\n",
2626                                 ret);
2627                         goto error;
2628                 }
2629                 usb_put_dev(udev);
2630                 return ret;
2631         }
2632
2633         /* Internal firmware already inside the device.  Get firmware
2634          * version to test if external firmware is loaded.
2635          * This works only for newer firmware, e.g. the Intersil 0.90.x
2636          * says "control timeout on ep0in" and subsequent
2637          * at76_get_op_mode() fail too :-( */
2638
2639         /* if version >= 0.100.x.y or device with built-in flash we can
2640          * query the device for the fw version */
2641         if ((fwe->fw_version.major > 0 || fwe->fw_version.minor >= 100)
2642             || (op_mode == OPMODE_NORMAL_NIC_WITH_FLASH)) {
2643                 ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv));
2644                 if (ret < 0 || (fwv.major | fwv.minor) == 0)
2645                         need_ext_fw = 1;
2646         } else
2647                 /* No way to check firmware version, reload to be sure */
2648                 need_ext_fw = 1;
2649
2650         if (need_ext_fw) {
2651                 dev_dbg(&interface->dev, "downloading external firmware\n");
2652
2653                 ret = at76_load_external_fw(udev, fwe);
2654                 if (ret)
2655                         goto error;
2656
2657                 /* Re-check firmware version */
2658                 ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv));
2659                 if (ret < 0) {
2660                         dev_err(&interface->dev,
2661                                 "error %d getting firmware version\n", ret);
2662                         goto error;
2663                 }
2664         }
2665
2666         priv = at76_alloc_new_device(udev);
2667         if (!priv) {
2668                 ret = -ENOMEM;
2669                 goto error;
2670         }
2671
2672         usb_set_intfdata(interface, priv);
2673
2674         memcpy(&priv->fw_version, &fwv, sizeof(struct mib_fw_version));
2675         priv->board_type = board_type;
2676
2677         ret = at76_init_new_device(priv, interface);
2678         if (ret < 0)
2679                 at76_delete_device(priv);
2680
2681         return ret;
2682
2683 error:
2684         usb_put_dev(udev);
2685         return ret;
2686 }
2687
2688 static void at76_disconnect(struct usb_interface *interface)
2689 {
2690         struct at76_priv *priv;
2691
2692         priv = usb_get_intfdata(interface);
2693         usb_set_intfdata(interface, NULL);
2694
2695         /* Disconnect after loading internal firmware */
2696         if (!priv)
2697                 return;
2698
2699         printk(KERN_INFO "%s: disconnecting\n", wiphy_name(priv->hw->wiphy));
2700         at76_delete_device(priv);
2701         dev_printk(KERN_INFO, &interface->dev, "disconnected\n");
2702 }
2703
2704 /* Structure for registering this driver with the USB subsystem */
2705 static struct usb_driver at76_driver = {
2706         .name = DRIVER_NAME,
2707         .probe = at76_probe,
2708         .disconnect = at76_disconnect,
2709         .id_table = dev_table,
2710 };
2711
2712 static int __init at76_mod_init(void)
2713 {
2714         int result;
2715
2716         printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " loading\n");
2717
2718         mutex_init(&fw_mutex);
2719
2720         /* register this driver with the USB subsystem */
2721         result = usb_register(&at76_driver);
2722         if (result < 0)
2723                 printk(KERN_ERR DRIVER_NAME
2724                        ": usb_register failed (status %d)\n", result);
2725
2726         led_trigger_register_simple("at76_usb-tx", &ledtrig_tx);
2727         return result;
2728 }
2729
2730 static void __exit at76_mod_exit(void)
2731 {
2732         int i;
2733
2734         printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " unloading\n");
2735         usb_deregister(&at76_driver);
2736         for (i = 0; i < ARRAY_SIZE(firmwares); i++) {
2737                 if (firmwares[i].fw)
2738                         release_firmware(firmwares[i].fw);
2739         }
2740         led_trigger_unregister_simple(ledtrig_tx);
2741 }
2742
2743 module_param_named(debug, at76_debug, int, 0600);
2744 MODULE_PARM_DESC(debug, "Debugging level");
2745
2746 module_init(at76_mod_init);
2747 module_exit(at76_mod_exit);
2748
2749 MODULE_AUTHOR("Oliver Kurth <oku@masqmail.cx>");
2750 MODULE_AUTHOR("Joerg Albert <joerg.albert@gmx.de>");
2751 MODULE_AUTHOR("Alex <alex@foogod.com>");
2752 MODULE_AUTHOR("Nick Jones");
2753 MODULE_AUTHOR("Balint Seeber <n0_5p4m_p13453@hotmail.com>");
2754 MODULE_AUTHOR("Pavel Roskin <proski@gnu.org>");
2755 MODULE_AUTHOR("Guido Guenther <agx@sigxcpu.org>");
2756 MODULE_AUTHOR("Kalle Valo <kalle.valo@iki.fi>");
2757 MODULE_AUTHOR("Milan Plzik <milan.plzik@gmail.com>");
2758 MODULE_DESCRIPTION(DRIVER_DESC);
2759 MODULE_LICENSE("GPL");