Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 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 | * o remove hex2str |
| 28 | * o remove mac2str |
| 29 | */ |
| 30 | |
| 31 | #include <linux/init.h> |
| 32 | #include <linux/kernel.h> |
| 33 | #include <linux/sched.h> |
| 34 | #include <linux/errno.h> |
| 35 | #include <linux/slab.h> |
| 36 | #include <linux/module.h> |
| 37 | #include <linux/spinlock.h> |
| 38 | #include <linux/list.h> |
| 39 | #include <linux/usb.h> |
| 40 | #include <linux/netdevice.h> |
| 41 | #include <linux/if_arp.h> |
| 42 | #include <linux/etherdevice.h> |
| 43 | #include <linux/ethtool.h> |
| 44 | #include <linux/wireless.h> |
| 45 | #include <net/iw_handler.h> |
| 46 | #include <net/ieee80211_radiotap.h> |
| 47 | #include <linux/firmware.h> |
| 48 | #include <linux/leds.h> |
| 49 | #include <net/mac80211.h> |
| 50 | |
| 51 | #include "at76c50x-usb.h" |
| 52 | |
| 53 | /* Version information */ |
| 54 | #define DRIVER_NAME "at76c50x-usb" |
| 55 | #define DRIVER_VERSION "0.17" |
| 56 | #define DRIVER_DESC "Atmel at76x USB Wireless LAN Driver" |
| 57 | |
| 58 | /* at76_debug bits */ |
| 59 | #define DBG_PROGRESS 0x00000001 /* authentication/accociation */ |
| 60 | #define DBG_BSS_TABLE 0x00000002 /* show BSS table after scans */ |
| 61 | #define DBG_IOCTL 0x00000004 /* ioctl calls / settings */ |
| 62 | #define DBG_MAC_STATE 0x00000008 /* MAC state transitions */ |
| 63 | #define DBG_TX_DATA 0x00000010 /* tx header */ |
| 64 | #define DBG_TX_DATA_CONTENT 0x00000020 /* tx content */ |
| 65 | #define DBG_TX_MGMT 0x00000040 /* tx management */ |
| 66 | #define DBG_RX_DATA 0x00000080 /* rx data header */ |
| 67 | #define DBG_RX_DATA_CONTENT 0x00000100 /* rx data content */ |
| 68 | #define DBG_RX_MGMT 0x00000200 /* rx mgmt frame headers */ |
| 69 | #define DBG_RX_BEACON 0x00000400 /* rx beacon */ |
| 70 | #define DBG_RX_CTRL 0x00000800 /* rx control */ |
| 71 | #define DBG_RX_MGMT_CONTENT 0x00001000 /* rx mgmt content */ |
| 72 | #define DBG_RX_FRAGS 0x00002000 /* rx data fragment handling */ |
| 73 | #define DBG_DEVSTART 0x00004000 /* fw download, device start */ |
| 74 | #define DBG_URB 0x00008000 /* rx urb status, ... */ |
| 75 | #define DBG_RX_ATMEL_HDR 0x00010000 /* Atmel-specific Rx headers */ |
| 76 | #define DBG_PROC_ENTRY 0x00020000 /* procedure entries/exits */ |
| 77 | #define DBG_PM 0x00040000 /* power management settings */ |
| 78 | #define DBG_BSS_MATCH 0x00080000 /* BSS match failures */ |
| 79 | #define DBG_PARAMS 0x00100000 /* show configured parameters */ |
| 80 | #define DBG_WAIT_COMPLETE 0x00200000 /* command completion */ |
| 81 | #define DBG_RX_FRAGS_SKB 0x00400000 /* skb header of Rx fragments */ |
| 82 | #define DBG_BSS_TABLE_RM 0x00800000 /* purging bss table entries */ |
| 83 | #define DBG_MONITOR_MODE 0x01000000 /* monitor mode */ |
| 84 | #define DBG_MIB 0x02000000 /* dump all MIBs on startup */ |
| 85 | #define DBG_MGMT_TIMER 0x04000000 /* dump mgmt_timer ops */ |
| 86 | #define DBG_WE_EVENTS 0x08000000 /* dump wireless events */ |
| 87 | #define DBG_FW 0x10000000 /* firmware download */ |
| 88 | #define DBG_DFU 0x20000000 /* device firmware upgrade */ |
| 89 | #define DBG_CMD 0x40000000 |
| 90 | #define DBG_MAC80211 0x80000000 |
| 91 | |
| 92 | #define DBG_DEFAULTS 0 |
| 93 | |
| 94 | /* Use our own dbg macro */ |
| 95 | #define at76_dbg(bits, format, arg...) \ |
| 96 | do { \ |
| 97 | if (at76_debug & (bits)) \ |
| 98 | printk(KERN_DEBUG DRIVER_NAME ": " format "\n" , \ |
| 99 | ## arg); \ |
| 100 | } while (0) |
| 101 | |
| 102 | #define at76_dbg_dump(bits, buf, len, format, arg...) \ |
| 103 | do { \ |
| 104 | if (at76_debug & (bits)) { \ |
| 105 | printk(KERN_DEBUG DRIVER_NAME ": " format "\n" , \ |
| 106 | ## arg); \ |
| 107 | print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, \ |
| 108 | buf, len); \ |
| 109 | } \ |
| 110 | } while (0) |
| 111 | |
Jason Andryuk | 2ce4f9d | 2009-02-18 22:41:04 +0200 | [diff] [blame] | 112 | static uint at76_debug = DBG_DEFAULTS; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 113 | |
| 114 | /* Protect against concurrent firmware loading and parsing */ |
| 115 | static struct mutex fw_mutex; |
| 116 | |
| 117 | static struct fwentry firmwares[] = { |
| 118 | [0] = { "" }, |
| 119 | [BOARD_503_ISL3861] = { "atmel_at76c503-i3861.bin" }, |
| 120 | [BOARD_503_ISL3863] = { "atmel_at76c503-i3863.bin" }, |
| 121 | [BOARD_503] = { "atmel_at76c503-rfmd.bin" }, |
| 122 | [BOARD_503_ACC] = { "atmel_at76c503-rfmd-acc.bin" }, |
| 123 | [BOARD_505] = { "atmel_at76c505-rfmd.bin" }, |
| 124 | [BOARD_505_2958] = { "atmel_at76c505-rfmd2958.bin" }, |
| 125 | [BOARD_505A] = { "atmel_at76c505a-rfmd2958.bin" }, |
| 126 | [BOARD_505AMX] = { "atmel_at76c505amx-rfmd.bin" }, |
| 127 | }; |
| 128 | |
| 129 | #define USB_DEVICE_DATA(__ops) .driver_info = (kernel_ulong_t)(__ops) |
| 130 | |
| 131 | static struct usb_device_id dev_table[] = { |
| 132 | /* |
| 133 | * at76c503-i3861 |
| 134 | */ |
| 135 | /* Generic AT76C503/3861 device */ |
| 136 | { USB_DEVICE(0x03eb, 0x7603), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 137 | /* Linksys WUSB11 v2.1/v2.6 */ |
| 138 | { USB_DEVICE(0x066b, 0x2211), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 139 | /* Netgear MA101 rev. A */ |
| 140 | { USB_DEVICE(0x0864, 0x4100), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 141 | /* Tekram U300C / Allnet ALL0193 */ |
| 142 | { USB_DEVICE(0x0b3b, 0x1612), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 143 | /* HP HN210W J7801A */ |
| 144 | { USB_DEVICE(0x03f0, 0x011c), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 145 | /* Sitecom/Z-Com/Zyxel M4Y-750 */ |
| 146 | { USB_DEVICE(0x0cde, 0x0001), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 147 | /* Dynalink/Askey WLL013 (intersil) */ |
| 148 | { USB_DEVICE(0x069a, 0x0320), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 149 | /* EZ connect 11Mpbs Wireless USB Adapter SMC2662W v1 */ |
| 150 | { USB_DEVICE(0x0d5c, 0xa001), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 151 | /* BenQ AWL300 */ |
| 152 | { USB_DEVICE(0x04a5, 0x9000), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 153 | /* Addtron AWU-120, Compex WLU11 */ |
| 154 | { USB_DEVICE(0x05dd, 0xff31), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 155 | /* Intel AP310 AnyPoint II USB */ |
| 156 | { USB_DEVICE(0x8086, 0x0200), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 157 | /* Dynalink L11U */ |
| 158 | { USB_DEVICE(0x0d8e, 0x7100), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 159 | /* Arescom WL-210, FCC id 07J-GL2411USB */ |
| 160 | { USB_DEVICE(0x0d8e, 0x7110), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 161 | /* I-O DATA WN-B11/USB */ |
| 162 | { USB_DEVICE(0x04bb, 0x0919), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 163 | /* BT Voyager 1010 */ |
| 164 | { USB_DEVICE(0x069a, 0x0821), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 165 | /* |
| 166 | * at76c503-i3863 |
| 167 | */ |
| 168 | /* Generic AT76C503/3863 device */ |
| 169 | { USB_DEVICE(0x03eb, 0x7604), USB_DEVICE_DATA(BOARD_503_ISL3863) }, |
| 170 | /* Samsung SWL-2100U */ |
| 171 | { USB_DEVICE(0x055d, 0xa000), USB_DEVICE_DATA(BOARD_503_ISL3863) }, |
| 172 | /* |
| 173 | * at76c503-rfmd |
| 174 | */ |
| 175 | /* Generic AT76C503/RFMD device */ |
| 176 | { USB_DEVICE(0x03eb, 0x7605), USB_DEVICE_DATA(BOARD_503) }, |
| 177 | /* Dynalink/Askey WLL013 (rfmd) */ |
| 178 | { USB_DEVICE(0x069a, 0x0321), USB_DEVICE_DATA(BOARD_503) }, |
| 179 | /* Linksys WUSB11 v2.6 */ |
| 180 | { USB_DEVICE(0x077b, 0x2219), USB_DEVICE_DATA(BOARD_503) }, |
| 181 | /* Network Everywhere NWU11B */ |
| 182 | { USB_DEVICE(0x077b, 0x2227), USB_DEVICE_DATA(BOARD_503) }, |
| 183 | /* Netgear MA101 rev. B */ |
| 184 | { USB_DEVICE(0x0864, 0x4102), USB_DEVICE_DATA(BOARD_503) }, |
| 185 | /* D-Link DWL-120 rev. E */ |
| 186 | { USB_DEVICE(0x2001, 0x3200), USB_DEVICE_DATA(BOARD_503) }, |
| 187 | /* Actiontec 802UAT1, HWU01150-01UK */ |
| 188 | { USB_DEVICE(0x1668, 0x7605), USB_DEVICE_DATA(BOARD_503) }, |
| 189 | /* AirVast W-Buddie WN210 */ |
| 190 | { USB_DEVICE(0x03eb, 0x4102), USB_DEVICE_DATA(BOARD_503) }, |
| 191 | /* Dick Smith Electronics XH1153 802.11b USB adapter */ |
| 192 | { USB_DEVICE(0x1371, 0x5743), USB_DEVICE_DATA(BOARD_503) }, |
| 193 | /* CNet CNUSB611 */ |
| 194 | { USB_DEVICE(0x1371, 0x0001), USB_DEVICE_DATA(BOARD_503) }, |
| 195 | /* FiberLine FL-WL200U */ |
| 196 | { USB_DEVICE(0x1371, 0x0002), USB_DEVICE_DATA(BOARD_503) }, |
| 197 | /* BenQ AWL400 USB stick */ |
| 198 | { USB_DEVICE(0x04a5, 0x9001), USB_DEVICE_DATA(BOARD_503) }, |
| 199 | /* 3Com 3CRSHEW696 */ |
| 200 | { USB_DEVICE(0x0506, 0x0a01), USB_DEVICE_DATA(BOARD_503) }, |
| 201 | /* Siemens Santis ADSL WLAN USB adapter WLL 013 */ |
| 202 | { USB_DEVICE(0x0681, 0x001b), USB_DEVICE_DATA(BOARD_503) }, |
| 203 | /* Belkin F5D6050, version 2 */ |
| 204 | { USB_DEVICE(0x050d, 0x0050), USB_DEVICE_DATA(BOARD_503) }, |
| 205 | /* iBlitzz, BWU613 (not *B or *SB) */ |
| 206 | { USB_DEVICE(0x07b8, 0xb000), USB_DEVICE_DATA(BOARD_503) }, |
| 207 | /* Gigabyte GN-WLBM101 */ |
| 208 | { USB_DEVICE(0x1044, 0x8003), USB_DEVICE_DATA(BOARD_503) }, |
| 209 | /* Planex GW-US11S */ |
| 210 | { USB_DEVICE(0x2019, 0x3220), USB_DEVICE_DATA(BOARD_503) }, |
| 211 | /* Internal WLAN adapter in h5[4,5]xx series iPAQs */ |
| 212 | { USB_DEVICE(0x049f, 0x0032), USB_DEVICE_DATA(BOARD_503) }, |
| 213 | /* Corega Wireless LAN USB-11 mini */ |
| 214 | { USB_DEVICE(0x07aa, 0x0011), USB_DEVICE_DATA(BOARD_503) }, |
| 215 | /* Corega Wireless LAN USB-11 mini2 */ |
| 216 | { USB_DEVICE(0x07aa, 0x0018), USB_DEVICE_DATA(BOARD_503) }, |
| 217 | /* Uniden PCW100 */ |
| 218 | { USB_DEVICE(0x05dd, 0xff35), USB_DEVICE_DATA(BOARD_503) }, |
| 219 | /* |
| 220 | * at76c503-rfmd-acc |
| 221 | */ |
| 222 | /* SMC2664W */ |
| 223 | { USB_DEVICE(0x083a, 0x3501), USB_DEVICE_DATA(BOARD_503_ACC) }, |
| 224 | /* Belkin F5D6050, SMC2662W v2, SMC2662W-AR */ |
| 225 | { USB_DEVICE(0x0d5c, 0xa002), USB_DEVICE_DATA(BOARD_503_ACC) }, |
| 226 | /* |
| 227 | * at76c505-rfmd |
| 228 | */ |
| 229 | /* Generic AT76C505/RFMD */ |
| 230 | { USB_DEVICE(0x03eb, 0x7606), USB_DEVICE_DATA(BOARD_505) }, |
| 231 | /* |
| 232 | * at76c505-rfmd2958 |
| 233 | */ |
| 234 | /* Generic AT76C505/RFMD, OvisLink WL-1130USB */ |
| 235 | { USB_DEVICE(0x03eb, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) }, |
| 236 | /* Fiberline FL-WL240U */ |
| 237 | { USB_DEVICE(0x1371, 0x0014), USB_DEVICE_DATA(BOARD_505_2958) }, |
| 238 | /* CNet CNUSB-611G */ |
| 239 | { USB_DEVICE(0x1371, 0x0013), USB_DEVICE_DATA(BOARD_505_2958) }, |
| 240 | /* Linksys WUSB11 v2.8 */ |
| 241 | { USB_DEVICE(0x1915, 0x2233), USB_DEVICE_DATA(BOARD_505_2958) }, |
| 242 | /* Xterasys XN-2122B, IBlitzz BWU613B/BWU613SB */ |
| 243 | { USB_DEVICE(0x12fd, 0x1001), USB_DEVICE_DATA(BOARD_505_2958) }, |
| 244 | /* Corega WLAN USB Stick 11 */ |
| 245 | { USB_DEVICE(0x07aa, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) }, |
| 246 | /* Microstar MSI Box MS6978 */ |
| 247 | { USB_DEVICE(0x0db0, 0x1020), USB_DEVICE_DATA(BOARD_505_2958) }, |
| 248 | /* |
| 249 | * at76c505a-rfmd2958 |
| 250 | */ |
| 251 | /* Generic AT76C505A device */ |
| 252 | { USB_DEVICE(0x03eb, 0x7614), USB_DEVICE_DATA(BOARD_505A) }, |
| 253 | /* Generic AT76C505AS device */ |
| 254 | { USB_DEVICE(0x03eb, 0x7617), USB_DEVICE_DATA(BOARD_505A) }, |
| 255 | /* Siemens Gigaset USB WLAN Adapter 11 */ |
| 256 | { USB_DEVICE(0x1690, 0x0701), USB_DEVICE_DATA(BOARD_505A) }, |
| 257 | /* |
| 258 | * at76c505amx-rfmd |
| 259 | */ |
| 260 | /* Generic AT76C505AMX device */ |
| 261 | { USB_DEVICE(0x03eb, 0x7615), USB_DEVICE_DATA(BOARD_505AMX) }, |
| 262 | { } |
| 263 | }; |
| 264 | |
| 265 | MODULE_DEVICE_TABLE(usb, dev_table); |
| 266 | |
| 267 | /* Supported rates of this hardware, bit 7 marks basic rates */ |
| 268 | static const u8 hw_rates[] = { 0x82, 0x84, 0x0b, 0x16 }; |
| 269 | |
| 270 | static const char *const preambles[] = { "long", "short", "auto" }; |
| 271 | |
| 272 | /* Firmware download */ |
| 273 | /* DFU states */ |
| 274 | #define STATE_IDLE 0x00 |
| 275 | #define STATE_DETACH 0x01 |
| 276 | #define STATE_DFU_IDLE 0x02 |
| 277 | #define STATE_DFU_DOWNLOAD_SYNC 0x03 |
| 278 | #define STATE_DFU_DOWNLOAD_BUSY 0x04 |
| 279 | #define STATE_DFU_DOWNLOAD_IDLE 0x05 |
| 280 | #define STATE_DFU_MANIFEST_SYNC 0x06 |
| 281 | #define STATE_DFU_MANIFEST 0x07 |
| 282 | #define STATE_DFU_MANIFEST_WAIT_RESET 0x08 |
| 283 | #define STATE_DFU_UPLOAD_IDLE 0x09 |
| 284 | #define STATE_DFU_ERROR 0x0a |
| 285 | |
| 286 | /* DFU commands */ |
| 287 | #define DFU_DETACH 0 |
| 288 | #define DFU_DNLOAD 1 |
| 289 | #define DFU_UPLOAD 2 |
| 290 | #define DFU_GETSTATUS 3 |
| 291 | #define DFU_CLRSTATUS 4 |
| 292 | #define DFU_GETSTATE 5 |
| 293 | #define DFU_ABORT 6 |
| 294 | |
| 295 | #define FW_BLOCK_SIZE 1024 |
| 296 | |
| 297 | struct dfu_status { |
| 298 | unsigned char status; |
| 299 | unsigned char poll_timeout[3]; |
| 300 | unsigned char state; |
| 301 | unsigned char string; |
| 302 | } __attribute__((packed)); |
| 303 | |
| 304 | static inline int at76_is_intersil(enum board_type board) |
| 305 | { |
| 306 | return (board == BOARD_503_ISL3861 || board == BOARD_503_ISL3863); |
| 307 | } |
| 308 | |
| 309 | static inline int at76_is_503rfmd(enum board_type board) |
| 310 | { |
| 311 | return (board == BOARD_503 || board == BOARD_503_ACC); |
| 312 | } |
| 313 | |
| 314 | static inline int at76_is_505a(enum board_type board) |
| 315 | { |
| 316 | return (board == BOARD_505A || board == BOARD_505AMX); |
| 317 | } |
| 318 | |
| 319 | /* Load a block of the first (internal) part of the firmware */ |
| 320 | static int at76_load_int_fw_block(struct usb_device *udev, int blockno, |
| 321 | void *block, int size) |
| 322 | { |
| 323 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), DFU_DNLOAD, |
| 324 | USB_TYPE_CLASS | USB_DIR_OUT | |
| 325 | USB_RECIP_INTERFACE, blockno, 0, block, size, |
| 326 | USB_CTRL_GET_TIMEOUT); |
| 327 | } |
| 328 | |
| 329 | static int at76_dfu_get_status(struct usb_device *udev, |
| 330 | struct dfu_status *status) |
| 331 | { |
| 332 | int ret; |
| 333 | |
| 334 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATUS, |
| 335 | USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, |
| 336 | 0, 0, status, sizeof(struct dfu_status), |
| 337 | USB_CTRL_GET_TIMEOUT); |
| 338 | return ret; |
| 339 | } |
| 340 | |
| 341 | static u8 at76_dfu_get_state(struct usb_device *udev, u8 *state) |
| 342 | { |
| 343 | int ret; |
| 344 | |
| 345 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATE, |
| 346 | USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, |
| 347 | 0, 0, state, 1, USB_CTRL_GET_TIMEOUT); |
| 348 | return ret; |
| 349 | } |
| 350 | |
| 351 | /* Convert timeout from the DFU status to jiffies */ |
| 352 | static inline unsigned long at76_get_timeout(struct dfu_status *s) |
| 353 | { |
| 354 | return msecs_to_jiffies((s->poll_timeout[2] << 16) |
| 355 | | (s->poll_timeout[1] << 8) |
| 356 | | (s->poll_timeout[0])); |
| 357 | } |
| 358 | |
| 359 | /* Load internal firmware from the buffer. If manifest_sync_timeout > 0, use |
| 360 | * its value in jiffies in the MANIFEST_SYNC state. */ |
| 361 | static int at76_usbdfu_download(struct usb_device *udev, u8 *buf, u32 size, |
| 362 | int manifest_sync_timeout) |
| 363 | { |
| 364 | u8 *block; |
| 365 | struct dfu_status dfu_stat_buf; |
| 366 | int ret = 0; |
| 367 | int need_dfu_state = 1; |
| 368 | int is_done = 0; |
| 369 | u8 dfu_state = 0; |
| 370 | u32 dfu_timeout = 0; |
| 371 | int bsize = 0; |
| 372 | int blockno = 0; |
| 373 | |
| 374 | at76_dbg(DBG_DFU, "%s( %p, %u, %d)", __func__, buf, size, |
| 375 | manifest_sync_timeout); |
| 376 | |
| 377 | if (!size) { |
| 378 | dev_printk(KERN_ERR, &udev->dev, "FW buffer length invalid!\n"); |
| 379 | return -EINVAL; |
| 380 | } |
| 381 | |
| 382 | block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL); |
| 383 | if (!block) |
| 384 | return -ENOMEM; |
| 385 | |
| 386 | do { |
| 387 | if (need_dfu_state) { |
| 388 | ret = at76_dfu_get_state(udev, &dfu_state); |
| 389 | if (ret < 0) { |
| 390 | dev_printk(KERN_ERR, &udev->dev, |
| 391 | "cannot get DFU state: %d\n", ret); |
| 392 | goto exit; |
| 393 | } |
| 394 | need_dfu_state = 0; |
| 395 | } |
| 396 | |
| 397 | switch (dfu_state) { |
| 398 | case STATE_DFU_DOWNLOAD_SYNC: |
| 399 | at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_SYNC"); |
| 400 | ret = at76_dfu_get_status(udev, &dfu_stat_buf); |
| 401 | if (ret >= 0) { |
| 402 | dfu_state = dfu_stat_buf.state; |
| 403 | dfu_timeout = at76_get_timeout(&dfu_stat_buf); |
| 404 | need_dfu_state = 0; |
| 405 | } else |
| 406 | dev_printk(KERN_ERR, &udev->dev, |
| 407 | "at76_dfu_get_status returned %d\n", |
| 408 | ret); |
| 409 | break; |
| 410 | |
| 411 | case STATE_DFU_DOWNLOAD_BUSY: |
| 412 | at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_BUSY"); |
| 413 | need_dfu_state = 1; |
| 414 | |
| 415 | at76_dbg(DBG_DFU, "DFU: Resetting device"); |
| 416 | schedule_timeout_interruptible(dfu_timeout); |
| 417 | break; |
| 418 | |
| 419 | case STATE_DFU_DOWNLOAD_IDLE: |
| 420 | at76_dbg(DBG_DFU, "DOWNLOAD..."); |
| 421 | /* fall through */ |
| 422 | case STATE_DFU_IDLE: |
| 423 | at76_dbg(DBG_DFU, "DFU IDLE"); |
| 424 | |
| 425 | bsize = min_t(int, size, FW_BLOCK_SIZE); |
| 426 | memcpy(block, buf, bsize); |
| 427 | at76_dbg(DBG_DFU, "int fw, size left = %5d, " |
| 428 | "bsize = %4d, blockno = %2d", size, bsize, |
| 429 | blockno); |
| 430 | ret = |
| 431 | at76_load_int_fw_block(udev, blockno, block, bsize); |
| 432 | buf += bsize; |
| 433 | size -= bsize; |
| 434 | blockno++; |
| 435 | |
| 436 | if (ret != bsize) |
| 437 | dev_printk(KERN_ERR, &udev->dev, |
| 438 | "at76_load_int_fw_block " |
| 439 | "returned %d\n", ret); |
| 440 | need_dfu_state = 1; |
| 441 | break; |
| 442 | |
| 443 | case STATE_DFU_MANIFEST_SYNC: |
| 444 | at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_SYNC"); |
| 445 | |
| 446 | ret = at76_dfu_get_status(udev, &dfu_stat_buf); |
| 447 | if (ret < 0) |
| 448 | break; |
| 449 | |
| 450 | dfu_state = dfu_stat_buf.state; |
| 451 | dfu_timeout = at76_get_timeout(&dfu_stat_buf); |
| 452 | need_dfu_state = 0; |
| 453 | |
| 454 | /* override the timeout from the status response, |
| 455 | needed for AT76C505A */ |
| 456 | if (manifest_sync_timeout > 0) |
| 457 | dfu_timeout = manifest_sync_timeout; |
| 458 | |
| 459 | at76_dbg(DBG_DFU, "DFU: Waiting for manifest phase"); |
| 460 | schedule_timeout_interruptible(dfu_timeout); |
| 461 | break; |
| 462 | |
| 463 | case STATE_DFU_MANIFEST: |
| 464 | at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST"); |
| 465 | is_done = 1; |
| 466 | break; |
| 467 | |
| 468 | case STATE_DFU_MANIFEST_WAIT_RESET: |
| 469 | at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_WAIT_RESET"); |
| 470 | is_done = 1; |
| 471 | break; |
| 472 | |
| 473 | case STATE_DFU_UPLOAD_IDLE: |
| 474 | at76_dbg(DBG_DFU, "STATE_DFU_UPLOAD_IDLE"); |
| 475 | break; |
| 476 | |
| 477 | case STATE_DFU_ERROR: |
| 478 | at76_dbg(DBG_DFU, "STATE_DFU_ERROR"); |
| 479 | ret = -EPIPE; |
| 480 | break; |
| 481 | |
| 482 | default: |
| 483 | at76_dbg(DBG_DFU, "DFU UNKNOWN STATE (%d)", dfu_state); |
| 484 | ret = -EINVAL; |
| 485 | break; |
| 486 | } |
| 487 | } while (!is_done && (ret >= 0)); |
| 488 | |
| 489 | exit: |
| 490 | kfree(block); |
| 491 | if (ret >= 0) |
| 492 | ret = 0; |
| 493 | |
| 494 | return ret; |
| 495 | } |
| 496 | |
| 497 | #define HEX2STR_BUFFERS 4 |
| 498 | #define HEX2STR_MAX_LEN 64 |
| 499 | #define BIN2HEX(x) ((x) < 10 ? '0' + (x) : (x) + 'A' - 10) |
| 500 | |
| 501 | /* Convert binary data into hex string */ |
| 502 | static char *hex2str(void *buf, int len) |
| 503 | { |
| 504 | static atomic_t a = ATOMIC_INIT(0); |
| 505 | static char bufs[HEX2STR_BUFFERS][3 * HEX2STR_MAX_LEN + 1]; |
| 506 | char *ret = bufs[atomic_inc_return(&a) & (HEX2STR_BUFFERS - 1)]; |
| 507 | char *obuf = ret; |
| 508 | u8 *ibuf = buf; |
| 509 | |
| 510 | if (len > HEX2STR_MAX_LEN) |
| 511 | len = HEX2STR_MAX_LEN; |
| 512 | |
| 513 | if (len <= 0) { |
| 514 | ret[0] = '\0'; |
| 515 | return ret; |
| 516 | } |
| 517 | |
| 518 | while (len--) { |
| 519 | *obuf++ = BIN2HEX(*ibuf >> 4); |
| 520 | *obuf++ = BIN2HEX(*ibuf & 0xf); |
| 521 | *obuf++ = '-'; |
| 522 | ibuf++; |
| 523 | } |
| 524 | *(--obuf) = '\0'; |
| 525 | |
| 526 | return ret; |
| 527 | } |
| 528 | |
| 529 | #define MAC2STR_BUFFERS 4 |
| 530 | |
| 531 | static inline char *mac2str(u8 *mac) |
| 532 | { |
| 533 | static atomic_t a = ATOMIC_INIT(0); |
| 534 | static char bufs[MAC2STR_BUFFERS][6 * 3]; |
| 535 | char *str; |
| 536 | |
| 537 | str = bufs[atomic_inc_return(&a) & (MAC2STR_BUFFERS - 1)]; |
| 538 | sprintf(str, "%02x:%02x:%02x:%02x:%02x:%02x", |
| 539 | mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); |
| 540 | return str; |
| 541 | } |
| 542 | |
| 543 | /* LED trigger */ |
| 544 | static int tx_activity; |
| 545 | static void at76_ledtrig_tx_timerfunc(unsigned long data); |
| 546 | static DEFINE_TIMER(ledtrig_tx_timer, at76_ledtrig_tx_timerfunc, 0, 0); |
| 547 | DEFINE_LED_TRIGGER(ledtrig_tx); |
| 548 | |
| 549 | static void at76_ledtrig_tx_timerfunc(unsigned long data) |
| 550 | { |
| 551 | static int tx_lastactivity; |
| 552 | |
| 553 | if (tx_lastactivity != tx_activity) { |
| 554 | tx_lastactivity = tx_activity; |
| 555 | led_trigger_event(ledtrig_tx, LED_FULL); |
| 556 | mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4); |
| 557 | } else |
| 558 | led_trigger_event(ledtrig_tx, LED_OFF); |
| 559 | } |
| 560 | |
| 561 | static void at76_ledtrig_tx_activity(void) |
| 562 | { |
| 563 | tx_activity++; |
| 564 | if (!timer_pending(&ledtrig_tx_timer)) |
| 565 | mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4); |
| 566 | } |
| 567 | |
| 568 | static int at76_remap(struct usb_device *udev) |
| 569 | { |
| 570 | int ret; |
| 571 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0a, |
| 572 | USB_TYPE_VENDOR | USB_DIR_OUT | |
| 573 | USB_RECIP_INTERFACE, 0, 0, NULL, 0, |
| 574 | USB_CTRL_GET_TIMEOUT); |
| 575 | if (ret < 0) |
| 576 | return ret; |
| 577 | return 0; |
| 578 | } |
| 579 | |
| 580 | static int at76_get_op_mode(struct usb_device *udev) |
| 581 | { |
| 582 | int ret; |
Jason Andryuk | 5a2137d | 2009-02-21 09:53:22 +0200 | [diff] [blame] | 583 | u8 saved; |
| 584 | u8 *op_mode; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 585 | |
Jason Andryuk | 5a2137d | 2009-02-21 09:53:22 +0200 | [diff] [blame] | 586 | op_mode = kmalloc(1, GFP_NOIO); |
| 587 | if (!op_mode) |
| 588 | return -ENOMEM; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 589 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, |
| 590 | USB_TYPE_VENDOR | USB_DIR_IN | |
Jason Andryuk | 5a2137d | 2009-02-21 09:53:22 +0200 | [diff] [blame] | 591 | USB_RECIP_INTERFACE, 0x01, 0, op_mode, 1, |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 592 | USB_CTRL_GET_TIMEOUT); |
Jason Andryuk | 5a2137d | 2009-02-21 09:53:22 +0200 | [diff] [blame] | 593 | saved = *op_mode; |
| 594 | kfree(op_mode); |
| 595 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 596 | if (ret < 0) |
| 597 | return ret; |
| 598 | else if (ret < 1) |
| 599 | return -EIO; |
| 600 | else |
Jason Andryuk | 5a2137d | 2009-02-21 09:53:22 +0200 | [diff] [blame] | 601 | return saved; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 602 | } |
| 603 | |
| 604 | /* Load a block of the second ("external") part of the firmware */ |
| 605 | static inline int at76_load_ext_fw_block(struct usb_device *udev, int blockno, |
| 606 | void *block, int size) |
| 607 | { |
| 608 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e, |
| 609 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, |
| 610 | 0x0802, blockno, block, size, |
| 611 | USB_CTRL_GET_TIMEOUT); |
| 612 | } |
| 613 | |
| 614 | static inline int at76_get_hw_cfg(struct usb_device *udev, |
| 615 | union at76_hwcfg *buf, int buf_size) |
| 616 | { |
| 617 | return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, |
| 618 | USB_TYPE_VENDOR | USB_DIR_IN | |
| 619 | USB_RECIP_INTERFACE, 0x0a02, 0, |
| 620 | buf, buf_size, USB_CTRL_GET_TIMEOUT); |
| 621 | } |
| 622 | |
| 623 | /* Intersil boards use a different "value" for GetHWConfig requests */ |
| 624 | static inline int at76_get_hw_cfg_intersil(struct usb_device *udev, |
| 625 | union at76_hwcfg *buf, int buf_size) |
| 626 | { |
| 627 | return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, |
| 628 | USB_TYPE_VENDOR | USB_DIR_IN | |
| 629 | USB_RECIP_INTERFACE, 0x0902, 0, |
| 630 | buf, buf_size, USB_CTRL_GET_TIMEOUT); |
| 631 | } |
| 632 | |
| 633 | /* Get the hardware configuration for the adapter and put it to the appropriate |
| 634 | * fields of 'priv' (the GetHWConfig request and interpretation of the result |
| 635 | * depends on the board type) */ |
| 636 | static int at76_get_hw_config(struct at76_priv *priv) |
| 637 | { |
| 638 | int ret; |
| 639 | union at76_hwcfg *hwcfg = kmalloc(sizeof(*hwcfg), GFP_KERNEL); |
| 640 | |
| 641 | if (!hwcfg) |
| 642 | return -ENOMEM; |
| 643 | |
| 644 | if (at76_is_intersil(priv->board_type)) { |
| 645 | ret = at76_get_hw_cfg_intersil(priv->udev, hwcfg, |
| 646 | sizeof(hwcfg->i)); |
| 647 | if (ret < 0) |
| 648 | goto exit; |
| 649 | memcpy(priv->mac_addr, hwcfg->i.mac_addr, ETH_ALEN); |
| 650 | priv->regulatory_domain = hwcfg->i.regulatory_domain; |
| 651 | } else if (at76_is_503rfmd(priv->board_type)) { |
| 652 | ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r3)); |
| 653 | if (ret < 0) |
| 654 | goto exit; |
| 655 | memcpy(priv->mac_addr, hwcfg->r3.mac_addr, ETH_ALEN); |
| 656 | priv->regulatory_domain = hwcfg->r3.regulatory_domain; |
| 657 | } else { |
| 658 | ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r5)); |
| 659 | if (ret < 0) |
| 660 | goto exit; |
| 661 | memcpy(priv->mac_addr, hwcfg->r5.mac_addr, ETH_ALEN); |
| 662 | priv->regulatory_domain = hwcfg->r5.regulatory_domain; |
| 663 | } |
| 664 | |
| 665 | exit: |
| 666 | kfree(hwcfg); |
| 667 | if (ret < 0) |
| 668 | printk(KERN_ERR "%s: cannot get HW Config (error %d)\n", |
| 669 | wiphy_name(priv->hw->wiphy), ret); |
| 670 | |
| 671 | return ret; |
| 672 | } |
| 673 | |
| 674 | static struct reg_domain const *at76_get_reg_domain(u16 code) |
| 675 | { |
| 676 | int i; |
| 677 | static struct reg_domain const fd_tab[] = { |
| 678 | { 0x10, "FCC (USA)", 0x7ff }, /* ch 1-11 */ |
| 679 | { 0x20, "IC (Canada)", 0x7ff }, /* ch 1-11 */ |
| 680 | { 0x30, "ETSI (most of Europe)", 0x1fff }, /* ch 1-13 */ |
| 681 | { 0x31, "Spain", 0x600 }, /* ch 10-11 */ |
| 682 | { 0x32, "France", 0x1e00 }, /* ch 10-13 */ |
| 683 | { 0x40, "MKK (Japan)", 0x2000 }, /* ch 14 */ |
| 684 | { 0x41, "MKK1 (Japan)", 0x3fff }, /* ch 1-14 */ |
| 685 | { 0x50, "Israel", 0x3fc }, /* ch 3-9 */ |
| 686 | { 0x00, "<unknown>", 0xffffffff } /* ch 1-32 */ |
| 687 | }; |
| 688 | |
| 689 | /* Last entry is fallback for unknown domain code */ |
| 690 | for (i = 0; i < ARRAY_SIZE(fd_tab) - 1; i++) |
| 691 | if (code == fd_tab[i].code) |
| 692 | break; |
| 693 | |
| 694 | return &fd_tab[i]; |
| 695 | } |
| 696 | |
| 697 | static inline int at76_get_mib(struct usb_device *udev, u16 mib, void *buf, |
| 698 | int buf_size) |
| 699 | { |
| 700 | int ret; |
| 701 | |
| 702 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, |
| 703 | USB_TYPE_VENDOR | USB_DIR_IN | |
| 704 | USB_RECIP_INTERFACE, mib << 8, 0, buf, buf_size, |
| 705 | USB_CTRL_GET_TIMEOUT); |
| 706 | if (ret >= 0 && ret != buf_size) |
| 707 | return -EIO; |
| 708 | return ret; |
| 709 | } |
| 710 | |
| 711 | /* Return positive number for status, negative for an error */ |
| 712 | static inline int at76_get_cmd_status(struct usb_device *udev, u8 cmd) |
| 713 | { |
Jason Andryuk | 5a2137d | 2009-02-21 09:53:22 +0200 | [diff] [blame] | 714 | u8 *stat_buf; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 715 | int ret; |
| 716 | |
Jason Andryuk | 5a2137d | 2009-02-21 09:53:22 +0200 | [diff] [blame] | 717 | stat_buf = kmalloc(40, GFP_NOIO); |
| 718 | if (!stat_buf) |
| 719 | return -ENOMEM; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 720 | |
Jason Andryuk | 5a2137d | 2009-02-21 09:53:22 +0200 | [diff] [blame] | 721 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x22, |
| 722 | USB_TYPE_VENDOR | USB_DIR_IN | |
| 723 | USB_RECIP_INTERFACE, cmd, 0, stat_buf, |
| 724 | 40, USB_CTRL_GET_TIMEOUT); |
| 725 | if (ret >= 0) |
| 726 | ret = stat_buf[5]; |
| 727 | kfree(stat_buf); |
| 728 | |
| 729 | return ret; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 730 | } |
| 731 | |
| 732 | #define MAKE_CMD_CASE(c) case (c): return #c |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 733 | static const char *at76_get_cmd_string(u8 cmd_status) |
| 734 | { |
| 735 | switch (cmd_status) { |
| 736 | MAKE_CMD_CASE(CMD_SET_MIB); |
| 737 | MAKE_CMD_CASE(CMD_GET_MIB); |
| 738 | MAKE_CMD_CASE(CMD_SCAN); |
| 739 | MAKE_CMD_CASE(CMD_JOIN); |
| 740 | MAKE_CMD_CASE(CMD_START_IBSS); |
| 741 | MAKE_CMD_CASE(CMD_RADIO_ON); |
| 742 | MAKE_CMD_CASE(CMD_RADIO_OFF); |
| 743 | MAKE_CMD_CASE(CMD_STARTUP); |
| 744 | } |
| 745 | |
| 746 | return "UNKNOWN"; |
| 747 | } |
| 748 | |
Jason Andryuk | 5a2137d | 2009-02-21 09:53:22 +0200 | [diff] [blame] | 749 | static int at76_set_card_command(struct usb_device *udev, u8 cmd, void *buf, |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 750 | int buf_size) |
| 751 | { |
| 752 | int ret; |
| 753 | struct at76_command *cmd_buf = kmalloc(sizeof(struct at76_command) + |
| 754 | buf_size, GFP_KERNEL); |
| 755 | |
| 756 | if (!cmd_buf) |
| 757 | return -ENOMEM; |
| 758 | |
| 759 | cmd_buf->cmd = cmd; |
| 760 | cmd_buf->reserved = 0; |
| 761 | cmd_buf->size = cpu_to_le16(buf_size); |
| 762 | memcpy(cmd_buf->data, buf, buf_size); |
| 763 | |
| 764 | at76_dbg_dump(DBG_CMD, cmd_buf, sizeof(struct at76_command) + buf_size, |
| 765 | "issuing command %s (0x%02x)", |
| 766 | at76_get_cmd_string(cmd), cmd); |
| 767 | |
| 768 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e, |
| 769 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, |
| 770 | 0, 0, cmd_buf, |
| 771 | sizeof(struct at76_command) + buf_size, |
| 772 | USB_CTRL_GET_TIMEOUT); |
| 773 | kfree(cmd_buf); |
| 774 | return ret; |
| 775 | } |
| 776 | |
| 777 | #define MAKE_CMD_STATUS_CASE(c) case (c): return #c |
| 778 | static const char *at76_get_cmd_status_string(u8 cmd_status) |
| 779 | { |
| 780 | switch (cmd_status) { |
| 781 | MAKE_CMD_STATUS_CASE(CMD_STATUS_IDLE); |
| 782 | MAKE_CMD_STATUS_CASE(CMD_STATUS_COMPLETE); |
| 783 | MAKE_CMD_STATUS_CASE(CMD_STATUS_UNKNOWN); |
| 784 | MAKE_CMD_STATUS_CASE(CMD_STATUS_INVALID_PARAMETER); |
| 785 | MAKE_CMD_STATUS_CASE(CMD_STATUS_FUNCTION_NOT_SUPPORTED); |
| 786 | MAKE_CMD_STATUS_CASE(CMD_STATUS_TIME_OUT); |
| 787 | MAKE_CMD_STATUS_CASE(CMD_STATUS_IN_PROGRESS); |
| 788 | MAKE_CMD_STATUS_CASE(CMD_STATUS_HOST_FAILURE); |
| 789 | MAKE_CMD_STATUS_CASE(CMD_STATUS_SCAN_FAILED); |
| 790 | } |
| 791 | |
| 792 | return "UNKNOWN"; |
| 793 | } |
| 794 | |
| 795 | /* Wait until the command is completed */ |
| 796 | static int at76_wait_completion(struct at76_priv *priv, int cmd) |
| 797 | { |
| 798 | int status = 0; |
| 799 | unsigned long timeout = jiffies + CMD_COMPLETION_TIMEOUT; |
| 800 | |
| 801 | do { |
| 802 | status = at76_get_cmd_status(priv->udev, cmd); |
| 803 | if (status < 0) { |
| 804 | printk(KERN_ERR "%s: at76_get_cmd_status failed: %d\n", |
| 805 | wiphy_name(priv->hw->wiphy), status); |
| 806 | break; |
| 807 | } |
| 808 | |
| 809 | at76_dbg(DBG_WAIT_COMPLETE, |
| 810 | "%s: Waiting on cmd %d, status = %d (%s)", |
| 811 | wiphy_name(priv->hw->wiphy), cmd, status, |
| 812 | at76_get_cmd_status_string(status)); |
| 813 | |
| 814 | if (status != CMD_STATUS_IN_PROGRESS |
| 815 | && status != CMD_STATUS_IDLE) |
| 816 | break; |
| 817 | |
| 818 | schedule_timeout_interruptible(HZ / 10); /* 100 ms */ |
| 819 | if (time_after(jiffies, timeout)) { |
| 820 | printk(KERN_ERR |
| 821 | "%s: completion timeout for command %d\n", |
| 822 | wiphy_name(priv->hw->wiphy), cmd); |
| 823 | status = -ETIMEDOUT; |
| 824 | break; |
| 825 | } |
| 826 | } while (1); |
| 827 | |
| 828 | return status; |
| 829 | } |
| 830 | |
| 831 | static int at76_set_mib(struct at76_priv *priv, struct set_mib_buffer *buf) |
| 832 | { |
| 833 | int ret; |
| 834 | |
| 835 | ret = at76_set_card_command(priv->udev, CMD_SET_MIB, buf, |
| 836 | offsetof(struct set_mib_buffer, |
| 837 | data) + buf->size); |
| 838 | if (ret < 0) |
| 839 | return ret; |
| 840 | |
| 841 | ret = at76_wait_completion(priv, CMD_SET_MIB); |
| 842 | if (ret != CMD_STATUS_COMPLETE) { |
| 843 | printk(KERN_INFO |
| 844 | "%s: set_mib: at76_wait_completion failed " |
| 845 | "with %d\n", wiphy_name(priv->hw->wiphy), ret); |
| 846 | ret = -EIO; |
| 847 | } |
| 848 | |
| 849 | return ret; |
| 850 | } |
| 851 | |
| 852 | /* Return < 0 on error, == 0 if no command sent, == 1 if cmd sent */ |
| 853 | static int at76_set_radio(struct at76_priv *priv, int enable) |
| 854 | { |
| 855 | int ret; |
| 856 | int cmd; |
| 857 | |
| 858 | if (priv->radio_on == enable) |
| 859 | return 0; |
| 860 | |
| 861 | cmd = enable ? CMD_RADIO_ON : CMD_RADIO_OFF; |
| 862 | |
| 863 | ret = at76_set_card_command(priv->udev, cmd, NULL, 0); |
| 864 | if (ret < 0) |
| 865 | printk(KERN_ERR "%s: at76_set_card_command(%d) failed: %d\n", |
| 866 | wiphy_name(priv->hw->wiphy), cmd, ret); |
| 867 | else |
| 868 | ret = 1; |
| 869 | |
| 870 | priv->radio_on = enable; |
| 871 | return ret; |
| 872 | } |
| 873 | |
| 874 | /* Set current power save mode (AT76_PM_OFF/AT76_PM_ON/AT76_PM_SMART) */ |
| 875 | static int at76_set_pm_mode(struct at76_priv *priv) |
| 876 | { |
| 877 | int ret = 0; |
| 878 | |
| 879 | priv->mib_buf.type = MIB_MAC_MGMT; |
| 880 | priv->mib_buf.size = 1; |
| 881 | priv->mib_buf.index = offsetof(struct mib_mac_mgmt, power_mgmt_mode); |
| 882 | priv->mib_buf.data.byte = priv->pm_mode; |
| 883 | |
| 884 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 885 | if (ret < 0) |
| 886 | printk(KERN_ERR "%s: set_mib (pm_mode) failed: %d\n", |
| 887 | wiphy_name(priv->hw->wiphy), ret); |
| 888 | |
| 889 | return ret; |
| 890 | } |
| 891 | |
| 892 | static int at76_set_preamble(struct at76_priv *priv, u8 type) |
| 893 | { |
| 894 | int ret = 0; |
| 895 | |
| 896 | priv->mib_buf.type = MIB_LOCAL; |
| 897 | priv->mib_buf.size = 1; |
| 898 | priv->mib_buf.index = offsetof(struct mib_local, preamble_type); |
| 899 | priv->mib_buf.data.byte = type; |
| 900 | |
| 901 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 902 | if (ret < 0) |
| 903 | printk(KERN_ERR "%s: set_mib (preamble) failed: %d\n", |
| 904 | wiphy_name(priv->hw->wiphy), ret); |
| 905 | |
| 906 | return ret; |
| 907 | } |
| 908 | |
| 909 | static int at76_set_frag(struct at76_priv *priv, u16 size) |
| 910 | { |
| 911 | int ret = 0; |
| 912 | |
| 913 | priv->mib_buf.type = MIB_MAC; |
| 914 | priv->mib_buf.size = 2; |
| 915 | priv->mib_buf.index = offsetof(struct mib_mac, frag_threshold); |
| 916 | priv->mib_buf.data.word = cpu_to_le16(size); |
| 917 | |
| 918 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 919 | if (ret < 0) |
| 920 | printk(KERN_ERR "%s: set_mib (frag threshold) failed: %d\n", |
| 921 | wiphy_name(priv->hw->wiphy), ret); |
| 922 | |
| 923 | return ret; |
| 924 | } |
| 925 | |
| 926 | static int at76_set_rts(struct at76_priv *priv, u16 size) |
| 927 | { |
| 928 | int ret = 0; |
| 929 | |
| 930 | priv->mib_buf.type = MIB_MAC; |
| 931 | priv->mib_buf.size = 2; |
| 932 | priv->mib_buf.index = offsetof(struct mib_mac, rts_threshold); |
| 933 | priv->mib_buf.data.word = cpu_to_le16(size); |
| 934 | |
| 935 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 936 | if (ret < 0) |
| 937 | printk(KERN_ERR "%s: set_mib (rts) failed: %d\n", |
| 938 | wiphy_name(priv->hw->wiphy), ret); |
| 939 | |
| 940 | return ret; |
| 941 | } |
| 942 | |
| 943 | static int at76_set_autorate_fallback(struct at76_priv *priv, int onoff) |
| 944 | { |
| 945 | int ret = 0; |
| 946 | |
| 947 | priv->mib_buf.type = MIB_LOCAL; |
| 948 | priv->mib_buf.size = 1; |
| 949 | priv->mib_buf.index = offsetof(struct mib_local, txautorate_fallback); |
| 950 | priv->mib_buf.data.byte = onoff; |
| 951 | |
| 952 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 953 | if (ret < 0) |
| 954 | printk(KERN_ERR "%s: set_mib (autorate fallback) failed: %d\n", |
| 955 | wiphy_name(priv->hw->wiphy), ret); |
| 956 | |
| 957 | return ret; |
| 958 | } |
| 959 | |
| 960 | static void at76_dump_mib_mac_addr(struct at76_priv *priv) |
| 961 | { |
| 962 | int i; |
| 963 | int ret; |
| 964 | struct mib_mac_addr *m = kmalloc(sizeof(struct mib_mac_addr), |
| 965 | GFP_KERNEL); |
| 966 | |
| 967 | if (!m) |
| 968 | return; |
| 969 | |
| 970 | ret = at76_get_mib(priv->udev, MIB_MAC_ADDR, m, |
| 971 | sizeof(struct mib_mac_addr)); |
| 972 | if (ret < 0) { |
| 973 | printk(KERN_ERR "%s: at76_get_mib (MAC_ADDR) failed: %d\n", |
| 974 | wiphy_name(priv->hw->wiphy), ret); |
| 975 | goto exit; |
| 976 | } |
| 977 | |
| 978 | at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: mac_addr %s res 0x%x 0x%x", |
| 979 | wiphy_name(priv->hw->wiphy), |
| 980 | mac2str(m->mac_addr), m->res[0], m->res[1]); |
| 981 | for (i = 0; i < ARRAY_SIZE(m->group_addr); i++) |
| 982 | at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: group addr %d: %s, " |
| 983 | "status %d", wiphy_name(priv->hw->wiphy), i, |
| 984 | mac2str(m->group_addr[i]), m->group_addr_status[i]); |
| 985 | exit: |
| 986 | kfree(m); |
| 987 | } |
| 988 | |
| 989 | static void at76_dump_mib_mac_wep(struct at76_priv *priv) |
| 990 | { |
| 991 | int i; |
| 992 | int ret; |
| 993 | int key_len; |
| 994 | struct mib_mac_wep *m = kmalloc(sizeof(struct mib_mac_wep), GFP_KERNEL); |
| 995 | |
| 996 | if (!m) |
| 997 | return; |
| 998 | |
| 999 | ret = at76_get_mib(priv->udev, MIB_MAC_WEP, m, |
| 1000 | sizeof(struct mib_mac_wep)); |
| 1001 | if (ret < 0) { |
| 1002 | printk(KERN_ERR "%s: at76_get_mib (MAC_WEP) failed: %d\n", |
| 1003 | wiphy_name(priv->hw->wiphy), ret); |
| 1004 | goto exit; |
| 1005 | } |
| 1006 | |
| 1007 | at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: priv_invoked %u def_key_id %u " |
| 1008 | "key_len %u excl_unencr %u wep_icv_err %u wep_excluded %u " |
| 1009 | "encr_level %u key %d", wiphy_name(priv->hw->wiphy), |
| 1010 | m->privacy_invoked, m->wep_default_key_id, |
| 1011 | m->wep_key_mapping_len, m->exclude_unencrypted, |
| 1012 | le32_to_cpu(m->wep_icv_error_count), |
| 1013 | le32_to_cpu(m->wep_excluded_count), m->encryption_level, |
| 1014 | m->wep_default_key_id); |
| 1015 | |
| 1016 | key_len = (m->encryption_level == 1) ? |
| 1017 | WEP_SMALL_KEY_LEN : WEP_LARGE_KEY_LEN; |
| 1018 | |
| 1019 | for (i = 0; i < WEP_KEYS; i++) |
| 1020 | at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: key %d: %s", |
| 1021 | wiphy_name(priv->hw->wiphy), i, |
| 1022 | hex2str(m->wep_default_keyvalue[i], key_len)); |
| 1023 | exit: |
| 1024 | kfree(m); |
| 1025 | } |
| 1026 | |
| 1027 | static void at76_dump_mib_mac_mgmt(struct at76_priv *priv) |
| 1028 | { |
| 1029 | int ret; |
| 1030 | struct mib_mac_mgmt *m = kmalloc(sizeof(struct mib_mac_mgmt), |
| 1031 | GFP_KERNEL); |
| 1032 | |
| 1033 | if (!m) |
| 1034 | return; |
| 1035 | |
| 1036 | ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, m, |
| 1037 | sizeof(struct mib_mac_mgmt)); |
| 1038 | if (ret < 0) { |
| 1039 | printk(KERN_ERR "%s: at76_get_mib (MAC_MGMT) failed: %d\n", |
| 1040 | wiphy_name(priv->hw->wiphy), ret); |
| 1041 | goto exit; |
| 1042 | } |
| 1043 | |
| 1044 | at76_dbg(DBG_MIB, "%s: MIB MAC_MGMT: beacon_period %d CFP_max_duration " |
| 1045 | "%d medium_occupancy_limit %d station_id 0x%x ATIM_window %d " |
| 1046 | "CFP_mode %d privacy_opt_impl %d DTIM_period %d CFP_period %d " |
| 1047 | "current_bssid %s current_essid %s current_bss_type %d " |
| 1048 | "pm_mode %d ibss_change %d res %d " |
| 1049 | "multi_domain_capability_implemented %d " |
| 1050 | "international_roaming %d country_string %.3s", |
| 1051 | wiphy_name(priv->hw->wiphy), le16_to_cpu(m->beacon_period), |
| 1052 | le16_to_cpu(m->CFP_max_duration), |
| 1053 | le16_to_cpu(m->medium_occupancy_limit), |
| 1054 | le16_to_cpu(m->station_id), le16_to_cpu(m->ATIM_window), |
| 1055 | m->CFP_mode, m->privacy_option_implemented, m->DTIM_period, |
| 1056 | m->CFP_period, mac2str(m->current_bssid), |
| 1057 | hex2str(m->current_essid, IW_ESSID_MAX_SIZE), |
| 1058 | m->current_bss_type, m->power_mgmt_mode, m->ibss_change, |
| 1059 | m->res, m->multi_domain_capability_implemented, |
| 1060 | m->multi_domain_capability_enabled, m->country_string); |
| 1061 | exit: |
| 1062 | kfree(m); |
| 1063 | } |
| 1064 | |
| 1065 | static void at76_dump_mib_mac(struct at76_priv *priv) |
| 1066 | { |
| 1067 | int ret; |
| 1068 | struct mib_mac *m = kmalloc(sizeof(struct mib_mac), GFP_KERNEL); |
| 1069 | |
| 1070 | if (!m) |
| 1071 | return; |
| 1072 | |
| 1073 | ret = at76_get_mib(priv->udev, MIB_MAC, m, sizeof(struct mib_mac)); |
| 1074 | if (ret < 0) { |
| 1075 | printk(KERN_ERR "%s: at76_get_mib (MAC) failed: %d\n", |
| 1076 | wiphy_name(priv->hw->wiphy), ret); |
| 1077 | goto exit; |
| 1078 | } |
| 1079 | |
| 1080 | at76_dbg(DBG_MIB, "%s: MIB MAC: max_tx_msdu_lifetime %d " |
| 1081 | "max_rx_lifetime %d frag_threshold %d rts_threshold %d " |
| 1082 | "cwmin %d cwmax %d short_retry_time %d long_retry_time %d " |
| 1083 | "scan_type %d scan_channel %d probe_delay %u " |
| 1084 | "min_channel_time %d max_channel_time %d listen_int %d " |
| 1085 | "desired_ssid %s desired_bssid %s desired_bsstype %d", |
| 1086 | wiphy_name(priv->hw->wiphy), |
| 1087 | le32_to_cpu(m->max_tx_msdu_lifetime), |
| 1088 | le32_to_cpu(m->max_rx_lifetime), |
| 1089 | le16_to_cpu(m->frag_threshold), le16_to_cpu(m->rts_threshold), |
| 1090 | le16_to_cpu(m->cwmin), le16_to_cpu(m->cwmax), |
| 1091 | m->short_retry_time, m->long_retry_time, m->scan_type, |
| 1092 | m->scan_channel, le16_to_cpu(m->probe_delay), |
| 1093 | le16_to_cpu(m->min_channel_time), |
| 1094 | le16_to_cpu(m->max_channel_time), |
| 1095 | le16_to_cpu(m->listen_interval), |
| 1096 | hex2str(m->desired_ssid, IW_ESSID_MAX_SIZE), |
| 1097 | mac2str(m->desired_bssid), m->desired_bsstype); |
| 1098 | exit: |
| 1099 | kfree(m); |
| 1100 | } |
| 1101 | |
| 1102 | static void at76_dump_mib_phy(struct at76_priv *priv) |
| 1103 | { |
| 1104 | int ret; |
| 1105 | struct mib_phy *m = kmalloc(sizeof(struct mib_phy), GFP_KERNEL); |
| 1106 | |
| 1107 | if (!m) |
| 1108 | return; |
| 1109 | |
| 1110 | ret = at76_get_mib(priv->udev, MIB_PHY, m, sizeof(struct mib_phy)); |
| 1111 | if (ret < 0) { |
| 1112 | printk(KERN_ERR "%s: at76_get_mib (PHY) failed: %d\n", |
| 1113 | wiphy_name(priv->hw->wiphy), ret); |
| 1114 | goto exit; |
| 1115 | } |
| 1116 | |
| 1117 | at76_dbg(DBG_MIB, "%s: MIB PHY: ed_threshold %d slot_time %d " |
| 1118 | "sifs_time %d preamble_length %d plcp_header_length %d " |
| 1119 | "mpdu_max_length %d cca_mode_supported %d operation_rate_set " |
| 1120 | "0x%x 0x%x 0x%x 0x%x channel_id %d current_cca_mode %d " |
| 1121 | "phy_type %d current_reg_domain %d", |
| 1122 | wiphy_name(priv->hw->wiphy), le32_to_cpu(m->ed_threshold), |
| 1123 | le16_to_cpu(m->slot_time), le16_to_cpu(m->sifs_time), |
| 1124 | le16_to_cpu(m->preamble_length), |
| 1125 | le16_to_cpu(m->plcp_header_length), |
| 1126 | le16_to_cpu(m->mpdu_max_length), |
| 1127 | le16_to_cpu(m->cca_mode_supported), m->operation_rate_set[0], |
| 1128 | m->operation_rate_set[1], m->operation_rate_set[2], |
| 1129 | m->operation_rate_set[3], m->channel_id, m->current_cca_mode, |
| 1130 | m->phy_type, m->current_reg_domain); |
| 1131 | exit: |
| 1132 | kfree(m); |
| 1133 | } |
| 1134 | |
| 1135 | static void at76_dump_mib_local(struct at76_priv *priv) |
| 1136 | { |
| 1137 | int ret; |
| 1138 | struct mib_local *m = kmalloc(sizeof(struct mib_phy), GFP_KERNEL); |
| 1139 | |
| 1140 | if (!m) |
| 1141 | return; |
| 1142 | |
| 1143 | ret = at76_get_mib(priv->udev, MIB_LOCAL, m, sizeof(struct mib_local)); |
| 1144 | if (ret < 0) { |
| 1145 | printk(KERN_ERR "%s: at76_get_mib (LOCAL) failed: %d\n", |
| 1146 | wiphy_name(priv->hw->wiphy), ret); |
| 1147 | goto exit; |
| 1148 | } |
| 1149 | |
| 1150 | at76_dbg(DBG_MIB, "%s: MIB LOCAL: beacon_enable %d " |
| 1151 | "txautorate_fallback %d ssid_size %d promiscuous_mode %d " |
| 1152 | "preamble_type %d", wiphy_name(priv->hw->wiphy), |
| 1153 | m->beacon_enable, |
| 1154 | m->txautorate_fallback, m->ssid_size, m->promiscuous_mode, |
| 1155 | m->preamble_type); |
| 1156 | exit: |
| 1157 | kfree(m); |
| 1158 | } |
| 1159 | |
| 1160 | static void at76_dump_mib_mdomain(struct at76_priv *priv) |
| 1161 | { |
| 1162 | int ret; |
| 1163 | struct mib_mdomain *m = kmalloc(sizeof(struct mib_mdomain), GFP_KERNEL); |
| 1164 | |
| 1165 | if (!m) |
| 1166 | return; |
| 1167 | |
| 1168 | ret = at76_get_mib(priv->udev, MIB_MDOMAIN, m, |
| 1169 | sizeof(struct mib_mdomain)); |
| 1170 | if (ret < 0) { |
| 1171 | printk(KERN_ERR "%s: at76_get_mib (MDOMAIN) failed: %d\n", |
| 1172 | wiphy_name(priv->hw->wiphy), ret); |
| 1173 | goto exit; |
| 1174 | } |
| 1175 | |
| 1176 | at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: channel_list %s", |
| 1177 | wiphy_name(priv->hw->wiphy), |
| 1178 | hex2str(m->channel_list, sizeof(m->channel_list))); |
| 1179 | |
| 1180 | at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: tx_powerlevel %s", |
| 1181 | wiphy_name(priv->hw->wiphy), |
| 1182 | hex2str(m->tx_powerlevel, sizeof(m->tx_powerlevel))); |
| 1183 | exit: |
| 1184 | kfree(m); |
| 1185 | } |
| 1186 | |
| 1187 | /* Enable monitor mode */ |
| 1188 | static int at76_start_monitor(struct at76_priv *priv) |
| 1189 | { |
| 1190 | struct at76_req_scan scan; |
| 1191 | int ret; |
| 1192 | |
| 1193 | memset(&scan, 0, sizeof(struct at76_req_scan)); |
| 1194 | memset(scan.bssid, 0xff, ETH_ALEN); |
| 1195 | |
| 1196 | scan.channel = priv->channel; |
| 1197 | scan.scan_type = SCAN_TYPE_PASSIVE; |
| 1198 | scan.international_scan = 0; |
| 1199 | |
| 1200 | ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan)); |
| 1201 | if (ret >= 0) |
| 1202 | ret = at76_get_cmd_status(priv->udev, CMD_SCAN); |
| 1203 | |
| 1204 | return ret; |
| 1205 | } |
| 1206 | |
| 1207 | /* Calculate padding from txbuf->wlength (which excludes the USB TX header), |
| 1208 | likely to compensate a flaw in the AT76C503A USB part ... */ |
| 1209 | static inline int at76_calc_padding(int wlen) |
| 1210 | { |
| 1211 | /* add the USB TX header */ |
| 1212 | wlen += AT76_TX_HDRLEN; |
| 1213 | |
| 1214 | wlen = wlen % 64; |
| 1215 | |
| 1216 | if (wlen < 50) |
| 1217 | return 50 - wlen; |
| 1218 | |
| 1219 | if (wlen >= 61) |
| 1220 | return 64 + 50 - wlen; |
| 1221 | |
| 1222 | return 0; |
| 1223 | } |
| 1224 | |
| 1225 | static void at76_rx_callback(struct urb *urb) |
| 1226 | { |
| 1227 | struct at76_priv *priv = urb->context; |
| 1228 | |
| 1229 | priv->rx_tasklet.data = (unsigned long)urb; |
| 1230 | tasklet_schedule(&priv->rx_tasklet); |
| 1231 | return; |
| 1232 | } |
| 1233 | |
| 1234 | static int at76_submit_rx_urb(struct at76_priv *priv) |
| 1235 | { |
| 1236 | int ret; |
| 1237 | int size; |
| 1238 | struct sk_buff *skb = priv->rx_skb; |
| 1239 | |
| 1240 | if (!priv->rx_urb) { |
| 1241 | printk(KERN_ERR "%s: %s: priv->rx_urb is NULL\n", |
| 1242 | wiphy_name(priv->hw->wiphy), __func__); |
| 1243 | return -EFAULT; |
| 1244 | } |
| 1245 | |
| 1246 | if (!skb) { |
| 1247 | skb = dev_alloc_skb(sizeof(struct at76_rx_buffer)); |
| 1248 | if (!skb) { |
| 1249 | printk(KERN_ERR "%s: cannot allocate rx skbuff\n", |
| 1250 | wiphy_name(priv->hw->wiphy)); |
| 1251 | ret = -ENOMEM; |
| 1252 | goto exit; |
| 1253 | } |
| 1254 | priv->rx_skb = skb; |
| 1255 | } else { |
| 1256 | skb_push(skb, skb_headroom(skb)); |
| 1257 | skb_trim(skb, 0); |
| 1258 | } |
| 1259 | |
| 1260 | size = skb_tailroom(skb); |
| 1261 | usb_fill_bulk_urb(priv->rx_urb, priv->udev, priv->rx_pipe, |
| 1262 | skb_put(skb, size), size, at76_rx_callback, priv); |
| 1263 | ret = usb_submit_urb(priv->rx_urb, GFP_ATOMIC); |
| 1264 | if (ret < 0) { |
| 1265 | if (ret == -ENODEV) |
| 1266 | at76_dbg(DBG_DEVSTART, |
| 1267 | "usb_submit_urb returned -ENODEV"); |
| 1268 | else |
| 1269 | printk(KERN_ERR "%s: rx, usb_submit_urb failed: %d\n", |
| 1270 | wiphy_name(priv->hw->wiphy), ret); |
| 1271 | } |
| 1272 | |
| 1273 | exit: |
| 1274 | if (ret < 0 && ret != -ENODEV) |
| 1275 | printk(KERN_ERR "%s: cannot submit rx urb - please unload the " |
| 1276 | "driver and/or power cycle the device\n", |
| 1277 | wiphy_name(priv->hw->wiphy)); |
| 1278 | |
| 1279 | return ret; |
| 1280 | } |
| 1281 | |
| 1282 | /* Download external firmware */ |
| 1283 | static int at76_load_external_fw(struct usb_device *udev, struct fwentry *fwe) |
| 1284 | { |
| 1285 | int ret; |
| 1286 | int op_mode; |
| 1287 | int blockno = 0; |
| 1288 | int bsize; |
| 1289 | u8 *block; |
| 1290 | u8 *buf = fwe->extfw; |
| 1291 | int size = fwe->extfw_size; |
| 1292 | |
| 1293 | if (!buf || !size) |
| 1294 | return -ENOENT; |
| 1295 | |
| 1296 | op_mode = at76_get_op_mode(udev); |
| 1297 | at76_dbg(DBG_DEVSTART, "opmode %d", op_mode); |
| 1298 | |
| 1299 | if (op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) { |
| 1300 | dev_printk(KERN_ERR, &udev->dev, "unexpected opmode %d\n", |
| 1301 | op_mode); |
| 1302 | return -EINVAL; |
| 1303 | } |
| 1304 | |
| 1305 | block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL); |
| 1306 | if (!block) |
| 1307 | return -ENOMEM; |
| 1308 | |
| 1309 | at76_dbg(DBG_DEVSTART, "downloading external firmware"); |
| 1310 | |
| 1311 | /* for fw >= 0.100, the device needs an extra empty block */ |
| 1312 | do { |
| 1313 | bsize = min_t(int, size, FW_BLOCK_SIZE); |
| 1314 | memcpy(block, buf, bsize); |
| 1315 | at76_dbg(DBG_DEVSTART, |
| 1316 | "ext fw, size left = %5d, bsize = %4d, blockno = %2d", |
| 1317 | size, bsize, blockno); |
| 1318 | ret = at76_load_ext_fw_block(udev, blockno, block, bsize); |
| 1319 | if (ret != bsize) { |
| 1320 | dev_printk(KERN_ERR, &udev->dev, |
| 1321 | "loading %dth firmware block failed: %d\n", |
| 1322 | blockno, ret); |
| 1323 | goto exit; |
| 1324 | } |
| 1325 | buf += bsize; |
| 1326 | size -= bsize; |
| 1327 | blockno++; |
| 1328 | } while (bsize > 0); |
| 1329 | |
| 1330 | if (at76_is_505a(fwe->board_type)) { |
| 1331 | at76_dbg(DBG_DEVSTART, "200 ms delay for 505a"); |
| 1332 | schedule_timeout_interruptible(HZ / 5 + 1); |
| 1333 | } |
| 1334 | |
| 1335 | exit: |
| 1336 | kfree(block); |
| 1337 | if (ret < 0) |
| 1338 | dev_printk(KERN_ERR, &udev->dev, |
| 1339 | "downloading external firmware failed: %d\n", ret); |
| 1340 | return ret; |
| 1341 | } |
| 1342 | |
| 1343 | /* Download internal firmware */ |
| 1344 | static int at76_load_internal_fw(struct usb_device *udev, struct fwentry *fwe) |
| 1345 | { |
| 1346 | int ret; |
| 1347 | int need_remap = !at76_is_505a(fwe->board_type); |
| 1348 | |
| 1349 | ret = at76_usbdfu_download(udev, fwe->intfw, fwe->intfw_size, |
| 1350 | need_remap ? 0 : 2 * HZ); |
| 1351 | |
| 1352 | if (ret < 0) { |
| 1353 | dev_printk(KERN_ERR, &udev->dev, |
| 1354 | "downloading internal fw failed with %d\n", ret); |
| 1355 | goto exit; |
| 1356 | } |
| 1357 | |
| 1358 | at76_dbg(DBG_DEVSTART, "sending REMAP"); |
| 1359 | |
| 1360 | /* no REMAP for 505A (see SF driver) */ |
| 1361 | if (need_remap) { |
| 1362 | ret = at76_remap(udev); |
| 1363 | if (ret < 0) { |
| 1364 | dev_printk(KERN_ERR, &udev->dev, |
| 1365 | "sending REMAP failed with %d\n", ret); |
| 1366 | goto exit; |
| 1367 | } |
| 1368 | } |
| 1369 | |
| 1370 | at76_dbg(DBG_DEVSTART, "sleeping for 2 seconds"); |
| 1371 | schedule_timeout_interruptible(2 * HZ + 1); |
| 1372 | usb_reset_device(udev); |
| 1373 | |
| 1374 | exit: |
| 1375 | return ret; |
| 1376 | } |
| 1377 | |
| 1378 | static int at76_startup_device(struct at76_priv *priv) |
| 1379 | { |
| 1380 | struct at76_card_config *ccfg = &priv->card_config; |
| 1381 | int ret; |
| 1382 | |
| 1383 | at76_dbg(DBG_PARAMS, |
| 1384 | "%s param: ssid %.*s (%s) mode %s ch %d wep %s key %d " |
| 1385 | "keylen %d", wiphy_name(priv->hw->wiphy), priv->essid_size, |
| 1386 | priv->essid, hex2str(priv->essid, IW_ESSID_MAX_SIZE), |
| 1387 | priv->iw_mode == IW_MODE_ADHOC ? "adhoc" : "infra", |
| 1388 | priv->channel, priv->wep_enabled ? "enabled" : "disabled", |
| 1389 | priv->wep_key_id, priv->wep_keys_len[priv->wep_key_id]); |
| 1390 | at76_dbg(DBG_PARAMS, |
| 1391 | "%s param: preamble %s rts %d retry %d frag %d " |
| 1392 | "txrate %s auth_mode %d", wiphy_name(priv->hw->wiphy), |
| 1393 | preambles[priv->preamble_type], priv->rts_threshold, |
| 1394 | priv->short_retry_limit, priv->frag_threshold, |
| 1395 | priv->txrate == TX_RATE_1MBIT ? "1MBit" : priv->txrate == |
| 1396 | TX_RATE_2MBIT ? "2MBit" : priv->txrate == |
| 1397 | TX_RATE_5_5MBIT ? "5.5MBit" : priv->txrate == |
| 1398 | TX_RATE_11MBIT ? "11MBit" : priv->txrate == |
| 1399 | TX_RATE_AUTO ? "auto" : "<invalid>", priv->auth_mode); |
| 1400 | at76_dbg(DBG_PARAMS, |
| 1401 | "%s param: pm_mode %d pm_period %d auth_mode %s " |
| 1402 | "scan_times %d %d scan_mode %s", |
| 1403 | wiphy_name(priv->hw->wiphy), priv->pm_mode, priv->pm_period, |
| 1404 | priv->auth_mode == WLAN_AUTH_OPEN ? "open" : "shared_secret", |
| 1405 | priv->scan_min_time, priv->scan_max_time, |
| 1406 | priv->scan_mode == SCAN_TYPE_ACTIVE ? "active" : "passive"); |
| 1407 | |
| 1408 | memset(ccfg, 0, sizeof(struct at76_card_config)); |
| 1409 | ccfg->promiscuous_mode = 0; |
| 1410 | ccfg->short_retry_limit = priv->short_retry_limit; |
| 1411 | |
| 1412 | if (priv->wep_enabled) { |
| 1413 | if (priv->wep_keys_len[priv->wep_key_id] > WEP_SMALL_KEY_LEN) |
| 1414 | ccfg->encryption_type = 2; |
| 1415 | else |
| 1416 | ccfg->encryption_type = 1; |
| 1417 | |
| 1418 | /* jal: always exclude unencrypted if WEP is active */ |
| 1419 | ccfg->exclude_unencrypted = 1; |
| 1420 | } else { |
| 1421 | ccfg->exclude_unencrypted = 0; |
| 1422 | ccfg->encryption_type = 0; |
| 1423 | } |
| 1424 | |
| 1425 | ccfg->rts_threshold = cpu_to_le16(priv->rts_threshold); |
| 1426 | ccfg->fragmentation_threshold = cpu_to_le16(priv->frag_threshold); |
| 1427 | |
| 1428 | memcpy(ccfg->basic_rate_set, hw_rates, 4); |
| 1429 | /* jal: really needed, we do a set_mib for autorate later ??? */ |
| 1430 | ccfg->auto_rate_fallback = (priv->txrate == TX_RATE_AUTO ? 1 : 0); |
| 1431 | ccfg->channel = priv->channel; |
| 1432 | ccfg->privacy_invoked = priv->wep_enabled; |
| 1433 | memcpy(ccfg->current_ssid, priv->essid, IW_ESSID_MAX_SIZE); |
| 1434 | ccfg->ssid_len = priv->essid_size; |
| 1435 | |
| 1436 | ccfg->wep_default_key_id = priv->wep_key_id; |
| 1437 | memcpy(ccfg->wep_default_key_value, priv->wep_keys, |
| 1438 | sizeof(priv->wep_keys)); |
| 1439 | |
| 1440 | ccfg->short_preamble = priv->preamble_type; |
| 1441 | ccfg->beacon_period = cpu_to_le16(priv->beacon_period); |
| 1442 | |
| 1443 | ret = at76_set_card_command(priv->udev, CMD_STARTUP, &priv->card_config, |
| 1444 | sizeof(struct at76_card_config)); |
| 1445 | if (ret < 0) { |
| 1446 | printk(KERN_ERR "%s: at76_set_card_command failed: %d\n", |
| 1447 | wiphy_name(priv->hw->wiphy), ret); |
| 1448 | return ret; |
| 1449 | } |
| 1450 | |
| 1451 | at76_wait_completion(priv, CMD_STARTUP); |
| 1452 | |
| 1453 | /* remove BSSID from previous run */ |
| 1454 | memset(priv->bssid, 0, ETH_ALEN); |
| 1455 | |
| 1456 | if (at76_set_radio(priv, 1) == 1) |
| 1457 | at76_wait_completion(priv, CMD_RADIO_ON); |
| 1458 | |
| 1459 | ret = at76_set_preamble(priv, priv->preamble_type); |
| 1460 | if (ret < 0) |
| 1461 | return ret; |
| 1462 | |
| 1463 | ret = at76_set_frag(priv, priv->frag_threshold); |
| 1464 | if (ret < 0) |
| 1465 | return ret; |
| 1466 | |
| 1467 | ret = at76_set_rts(priv, priv->rts_threshold); |
| 1468 | if (ret < 0) |
| 1469 | return ret; |
| 1470 | |
| 1471 | ret = at76_set_autorate_fallback(priv, |
| 1472 | priv->txrate == TX_RATE_AUTO ? 1 : 0); |
| 1473 | if (ret < 0) |
| 1474 | return ret; |
| 1475 | |
| 1476 | ret = at76_set_pm_mode(priv); |
| 1477 | if (ret < 0) |
| 1478 | return ret; |
| 1479 | |
| 1480 | if (at76_debug & DBG_MIB) { |
| 1481 | at76_dump_mib_mac(priv); |
| 1482 | at76_dump_mib_mac_addr(priv); |
| 1483 | at76_dump_mib_mac_mgmt(priv); |
| 1484 | at76_dump_mib_mac_wep(priv); |
| 1485 | at76_dump_mib_mdomain(priv); |
| 1486 | at76_dump_mib_phy(priv); |
| 1487 | at76_dump_mib_local(priv); |
| 1488 | } |
| 1489 | |
| 1490 | return 0; |
| 1491 | } |
| 1492 | |
| 1493 | /* Enable or disable promiscuous mode */ |
| 1494 | static void at76_work_set_promisc(struct work_struct *work) |
| 1495 | { |
| 1496 | struct at76_priv *priv = container_of(work, struct at76_priv, |
| 1497 | work_set_promisc); |
| 1498 | int ret = 0; |
| 1499 | |
Jason Andryuk | 1cc198f | 2009-02-21 09:53:29 +0200 | [diff] [blame^] | 1500 | if (priv->device_unplugged) |
| 1501 | return; |
| 1502 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1503 | mutex_lock(&priv->mtx); |
| 1504 | |
| 1505 | priv->mib_buf.type = MIB_LOCAL; |
| 1506 | priv->mib_buf.size = 1; |
| 1507 | priv->mib_buf.index = offsetof(struct mib_local, promiscuous_mode); |
| 1508 | priv->mib_buf.data.byte = priv->promisc ? 1 : 0; |
| 1509 | |
| 1510 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 1511 | if (ret < 0) |
| 1512 | printk(KERN_ERR "%s: set_mib (promiscuous_mode) failed: %d\n", |
| 1513 | wiphy_name(priv->hw->wiphy), ret); |
| 1514 | |
| 1515 | mutex_unlock(&priv->mtx); |
| 1516 | } |
| 1517 | |
| 1518 | /* Submit Rx urb back to the device */ |
| 1519 | static void at76_work_submit_rx(struct work_struct *work) |
| 1520 | { |
| 1521 | struct at76_priv *priv = container_of(work, struct at76_priv, |
| 1522 | work_submit_rx); |
| 1523 | |
| 1524 | mutex_lock(&priv->mtx); |
| 1525 | at76_submit_rx_urb(priv); |
| 1526 | mutex_unlock(&priv->mtx); |
| 1527 | } |
| 1528 | |
| 1529 | static void at76_rx_tasklet(unsigned long param) |
| 1530 | { |
| 1531 | struct urb *urb = (struct urb *)param; |
| 1532 | struct at76_priv *priv = urb->context; |
| 1533 | struct at76_rx_buffer *buf; |
| 1534 | struct ieee80211_rx_status rx_status = { 0 }; |
| 1535 | |
| 1536 | if (priv->device_unplugged) { |
| 1537 | at76_dbg(DBG_DEVSTART, "device unplugged"); |
| 1538 | if (urb) |
| 1539 | at76_dbg(DBG_DEVSTART, "urb status %d", urb->status); |
| 1540 | return; |
| 1541 | } |
| 1542 | |
| 1543 | if (!priv->rx_skb || !priv->rx_skb->data) |
| 1544 | return; |
| 1545 | |
| 1546 | buf = (struct at76_rx_buffer *)priv->rx_skb->data; |
| 1547 | |
| 1548 | if (urb->status != 0) { |
| 1549 | if (urb->status != -ENOENT && urb->status != -ECONNRESET) |
| 1550 | at76_dbg(DBG_URB, |
| 1551 | "%s %s: - nonzero Rx bulk status received: %d", |
| 1552 | __func__, wiphy_name(priv->hw->wiphy), |
| 1553 | urb->status); |
| 1554 | return; |
| 1555 | } |
| 1556 | |
| 1557 | at76_dbg(DBG_RX_ATMEL_HDR, |
| 1558 | "%s: rx frame: rate %d rssi %d noise %d link %d", |
| 1559 | wiphy_name(priv->hw->wiphy), buf->rx_rate, buf->rssi, |
| 1560 | buf->noise_level, buf->link_quality); |
| 1561 | |
| 1562 | skb_pull(priv->rx_skb, AT76_RX_HDRLEN); |
| 1563 | skb_trim(priv->rx_skb, le16_to_cpu(buf->wlength)); |
| 1564 | at76_dbg_dump(DBG_RX_DATA, priv->rx_skb->data, |
| 1565 | priv->rx_skb->len, "RX: len=%d", priv->rx_skb->len); |
| 1566 | |
| 1567 | rx_status.signal = buf->rssi; |
| 1568 | rx_status.flag |= RX_FLAG_DECRYPTED; |
| 1569 | rx_status.flag |= RX_FLAG_IV_STRIPPED; |
| 1570 | |
| 1571 | at76_dbg(DBG_MAC80211, "calling ieee80211_rx_irqsafe(): %d/%d", |
| 1572 | priv->rx_skb->len, priv->rx_skb->data_len); |
| 1573 | ieee80211_rx_irqsafe(priv->hw, priv->rx_skb, &rx_status); |
| 1574 | |
| 1575 | /* Use a new skb for the next receive */ |
| 1576 | priv->rx_skb = NULL; |
| 1577 | |
| 1578 | at76_submit_rx_urb(priv); |
| 1579 | } |
| 1580 | |
| 1581 | /* Load firmware into kernel memory and parse it */ |
| 1582 | static struct fwentry *at76_load_firmware(struct usb_device *udev, |
| 1583 | enum board_type board_type) |
| 1584 | { |
| 1585 | int ret; |
| 1586 | char *str; |
| 1587 | struct at76_fw_header *fwh; |
| 1588 | struct fwentry *fwe = &firmwares[board_type]; |
| 1589 | |
| 1590 | mutex_lock(&fw_mutex); |
| 1591 | |
| 1592 | if (fwe->loaded) { |
| 1593 | at76_dbg(DBG_FW, "re-using previously loaded fw"); |
| 1594 | goto exit; |
| 1595 | } |
| 1596 | |
| 1597 | at76_dbg(DBG_FW, "downloading firmware %s", fwe->fwname); |
| 1598 | ret = request_firmware(&fwe->fw, fwe->fwname, &udev->dev); |
| 1599 | if (ret < 0) { |
| 1600 | dev_printk(KERN_ERR, &udev->dev, "firmware %s not found!\n", |
| 1601 | fwe->fwname); |
| 1602 | dev_printk(KERN_ERR, &udev->dev, |
| 1603 | "you may need to download the firmware from " |
| 1604 | "http://developer.berlios.de/projects/at76c503a/\n"); |
| 1605 | goto exit; |
| 1606 | } |
| 1607 | |
| 1608 | at76_dbg(DBG_FW, "got it."); |
| 1609 | fwh = (struct at76_fw_header *)(fwe->fw->data); |
| 1610 | |
| 1611 | if (fwe->fw->size <= sizeof(*fwh)) { |
| 1612 | dev_printk(KERN_ERR, &udev->dev, |
| 1613 | "firmware is too short (0x%zx)\n", fwe->fw->size); |
| 1614 | goto exit; |
| 1615 | } |
| 1616 | |
| 1617 | /* CRC currently not checked */ |
| 1618 | fwe->board_type = le32_to_cpu(fwh->board_type); |
| 1619 | if (fwe->board_type != board_type) { |
| 1620 | dev_printk(KERN_ERR, &udev->dev, |
| 1621 | "board type mismatch, requested %u, got %u\n", |
| 1622 | board_type, fwe->board_type); |
| 1623 | goto exit; |
| 1624 | } |
| 1625 | |
| 1626 | fwe->fw_version.major = fwh->major; |
| 1627 | fwe->fw_version.minor = fwh->minor; |
| 1628 | fwe->fw_version.patch = fwh->patch; |
| 1629 | fwe->fw_version.build = fwh->build; |
| 1630 | |
| 1631 | str = (char *)fwh + le32_to_cpu(fwh->str_offset); |
| 1632 | fwe->intfw = (u8 *)fwh + le32_to_cpu(fwh->int_fw_offset); |
| 1633 | fwe->intfw_size = le32_to_cpu(fwh->int_fw_len); |
| 1634 | fwe->extfw = (u8 *)fwh + le32_to_cpu(fwh->ext_fw_offset); |
| 1635 | fwe->extfw_size = le32_to_cpu(fwh->ext_fw_len); |
| 1636 | |
| 1637 | fwe->loaded = 1; |
| 1638 | |
| 1639 | dev_printk(KERN_DEBUG, &udev->dev, |
| 1640 | "using firmware %s (version %d.%d.%d-%d)\n", |
| 1641 | fwe->fwname, fwh->major, fwh->minor, fwh->patch, fwh->build); |
| 1642 | |
| 1643 | at76_dbg(DBG_DEVSTART, "board %u, int %d:%d, ext %d:%d", board_type, |
| 1644 | le32_to_cpu(fwh->int_fw_offset), le32_to_cpu(fwh->int_fw_len), |
| 1645 | le32_to_cpu(fwh->ext_fw_offset), le32_to_cpu(fwh->ext_fw_len)); |
| 1646 | at76_dbg(DBG_DEVSTART, "firmware id %s", str); |
| 1647 | |
| 1648 | exit: |
| 1649 | mutex_unlock(&fw_mutex); |
| 1650 | |
| 1651 | if (fwe->loaded) |
| 1652 | return fwe; |
| 1653 | else |
| 1654 | return NULL; |
| 1655 | } |
| 1656 | |
| 1657 | static void at76_mac80211_tx_callback(struct urb *urb) |
| 1658 | { |
| 1659 | struct at76_priv *priv = urb->context; |
| 1660 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(priv->tx_skb); |
| 1661 | |
| 1662 | at76_dbg(DBG_MAC80211, "%s()", __func__); |
| 1663 | |
| 1664 | switch (urb->status) { |
| 1665 | case 0: |
| 1666 | /* success */ |
| 1667 | info->flags |= IEEE80211_TX_STAT_ACK; |
| 1668 | break; |
| 1669 | case -ENOENT: |
| 1670 | case -ECONNRESET: |
| 1671 | /* fail, urb has been unlinked */ |
| 1672 | /* FIXME: add error message */ |
| 1673 | break; |
| 1674 | default: |
| 1675 | at76_dbg(DBG_URB, "%s - nonzero tx status received: %d", |
| 1676 | __func__, urb->status); |
| 1677 | break; |
| 1678 | } |
| 1679 | |
| 1680 | memset(&info->status, 0, sizeof(info->status)); |
| 1681 | |
| 1682 | ieee80211_tx_status_irqsafe(priv->hw, priv->tx_skb); |
| 1683 | |
| 1684 | priv->tx_skb = NULL; |
| 1685 | |
| 1686 | ieee80211_wake_queues(priv->hw); |
| 1687 | } |
| 1688 | |
| 1689 | static int at76_mac80211_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
| 1690 | { |
| 1691 | struct at76_priv *priv = hw->priv; |
| 1692 | struct at76_tx_buffer *tx_buffer = priv->bulk_out_buffer; |
| 1693 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
| 1694 | int padding, submit_len, ret; |
| 1695 | |
| 1696 | at76_dbg(DBG_MAC80211, "%s()", __func__); |
| 1697 | |
| 1698 | if (priv->tx_urb->status == -EINPROGRESS) { |
| 1699 | printk(KERN_ERR "%s: %s called while tx urb is pending\n", |
| 1700 | wiphy_name(priv->hw->wiphy), __func__); |
| 1701 | return NETDEV_TX_BUSY; |
| 1702 | } |
| 1703 | |
| 1704 | ieee80211_stop_queues(hw); |
| 1705 | |
| 1706 | at76_ledtrig_tx_activity(); /* tell ledtrigger we send a packet */ |
| 1707 | |
| 1708 | WARN_ON(priv->tx_skb != NULL); |
| 1709 | |
| 1710 | priv->tx_skb = skb; |
| 1711 | padding = at76_calc_padding(skb->len); |
| 1712 | submit_len = AT76_TX_HDRLEN + skb->len + padding; |
| 1713 | |
| 1714 | /* setup 'Atmel' header */ |
| 1715 | memset(tx_buffer, 0, sizeof(*tx_buffer)); |
| 1716 | tx_buffer->padding = padding; |
| 1717 | tx_buffer->wlength = cpu_to_le16(skb->len); |
| 1718 | tx_buffer->tx_rate = ieee80211_get_tx_rate(hw, info)->hw_value; |
| 1719 | memset(tx_buffer->reserved, 0, sizeof(tx_buffer->reserved)); |
| 1720 | memcpy(tx_buffer->packet, skb->data, skb->len); |
| 1721 | |
| 1722 | at76_dbg(DBG_TX_DATA, "%s tx: wlen 0x%x pad 0x%x rate %d hdr", |
| 1723 | wiphy_name(priv->hw->wiphy), le16_to_cpu(tx_buffer->wlength), |
| 1724 | tx_buffer->padding, tx_buffer->tx_rate); |
| 1725 | |
| 1726 | /* send stuff */ |
| 1727 | at76_dbg_dump(DBG_TX_DATA_CONTENT, tx_buffer, submit_len, |
| 1728 | "%s(): tx_buffer %d bytes:", __func__, submit_len); |
| 1729 | usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, tx_buffer, |
| 1730 | submit_len, at76_mac80211_tx_callback, priv); |
| 1731 | ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC); |
| 1732 | if (ret) { |
| 1733 | printk(KERN_ERR "%s: error in tx submit urb: %d\n", |
| 1734 | wiphy_name(priv->hw->wiphy), ret); |
| 1735 | if (ret == -EINVAL) |
| 1736 | printk(KERN_ERR |
| 1737 | "%s: -EINVAL: tx urb %p hcpriv %p complete %p\n", |
| 1738 | wiphy_name(priv->hw->wiphy), priv->tx_urb, |
| 1739 | priv->tx_urb->hcpriv, priv->tx_urb->complete); |
| 1740 | } |
| 1741 | |
| 1742 | return 0; |
| 1743 | } |
| 1744 | |
| 1745 | static int at76_mac80211_start(struct ieee80211_hw *hw) |
| 1746 | { |
| 1747 | struct at76_priv *priv = hw->priv; |
| 1748 | int ret; |
| 1749 | |
| 1750 | at76_dbg(DBG_MAC80211, "%s()", __func__); |
| 1751 | |
| 1752 | mutex_lock(&priv->mtx); |
| 1753 | |
| 1754 | ret = at76_submit_rx_urb(priv); |
| 1755 | if (ret < 0) { |
| 1756 | printk(KERN_ERR "%s: open: submit_rx_urb failed: %d\n", |
| 1757 | wiphy_name(priv->hw->wiphy), ret); |
| 1758 | goto error; |
| 1759 | } |
| 1760 | |
| 1761 | at76_startup_device(priv); |
| 1762 | |
| 1763 | at76_start_monitor(priv); |
| 1764 | |
| 1765 | error: |
| 1766 | mutex_unlock(&priv->mtx); |
| 1767 | |
| 1768 | return 0; |
| 1769 | } |
| 1770 | |
| 1771 | static void at76_mac80211_stop(struct ieee80211_hw *hw) |
| 1772 | { |
| 1773 | struct at76_priv *priv = hw->priv; |
| 1774 | |
| 1775 | at76_dbg(DBG_MAC80211, "%s()", __func__); |
| 1776 | |
| 1777 | mutex_lock(&priv->mtx); |
| 1778 | |
| 1779 | if (!priv->device_unplugged) { |
| 1780 | /* We are called by "ifconfig ethX down", not because the |
| 1781 | * device is not available anymore. */ |
| 1782 | at76_set_radio(priv, 0); |
| 1783 | |
| 1784 | /* We unlink rx_urb because at76_open() re-submits it. |
| 1785 | * If unplugged, at76_delete_device() takes care of it. */ |
| 1786 | usb_kill_urb(priv->rx_urb); |
| 1787 | } |
| 1788 | |
| 1789 | mutex_unlock(&priv->mtx); |
| 1790 | } |
| 1791 | |
| 1792 | static int at76_add_interface(struct ieee80211_hw *hw, |
| 1793 | struct ieee80211_if_init_conf *conf) |
| 1794 | { |
| 1795 | struct at76_priv *priv = hw->priv; |
| 1796 | int ret = 0; |
| 1797 | |
| 1798 | at76_dbg(DBG_MAC80211, "%s()", __func__); |
| 1799 | |
| 1800 | mutex_lock(&priv->mtx); |
| 1801 | |
| 1802 | switch (conf->type) { |
| 1803 | case NL80211_IFTYPE_STATION: |
| 1804 | priv->iw_mode = IW_MODE_INFRA; |
| 1805 | break; |
| 1806 | default: |
| 1807 | ret = -EOPNOTSUPP; |
| 1808 | goto exit; |
| 1809 | } |
| 1810 | |
| 1811 | exit: |
| 1812 | mutex_unlock(&priv->mtx); |
| 1813 | |
| 1814 | return ret; |
| 1815 | } |
| 1816 | |
| 1817 | static void at76_remove_interface(struct ieee80211_hw *hw, |
| 1818 | struct ieee80211_if_init_conf *conf) |
| 1819 | { |
| 1820 | at76_dbg(DBG_MAC80211, "%s()", __func__); |
| 1821 | } |
| 1822 | |
| 1823 | static int at76_join(struct at76_priv *priv) |
| 1824 | { |
| 1825 | struct at76_req_join join; |
| 1826 | int ret; |
| 1827 | |
| 1828 | memset(&join, 0, sizeof(struct at76_req_join)); |
| 1829 | memcpy(join.essid, priv->essid, priv->essid_size); |
| 1830 | join.essid_size = priv->essid_size; |
| 1831 | memcpy(join.bssid, priv->bssid, ETH_ALEN); |
| 1832 | join.bss_type = INFRASTRUCTURE_MODE; |
| 1833 | join.channel = priv->channel; |
| 1834 | join.timeout = cpu_to_le16(2000); |
| 1835 | |
| 1836 | at76_dbg(DBG_MAC80211, "%s: sending CMD_JOIN", __func__); |
| 1837 | ret = at76_set_card_command(priv->udev, CMD_JOIN, &join, |
| 1838 | sizeof(struct at76_req_join)); |
| 1839 | |
| 1840 | if (ret < 0) { |
| 1841 | printk(KERN_ERR "%s: at76_set_card_command failed: %d\n", |
| 1842 | wiphy_name(priv->hw->wiphy), ret); |
| 1843 | return 0; |
| 1844 | } |
| 1845 | |
| 1846 | ret = at76_wait_completion(priv, CMD_JOIN); |
| 1847 | at76_dbg(DBG_MAC80211, "%s: CMD_JOIN returned: 0x%02x", __func__, ret); |
| 1848 | if (ret != CMD_STATUS_COMPLETE) { |
| 1849 | printk(KERN_ERR "%s: at76_wait_completion failed: %d\n", |
| 1850 | wiphy_name(priv->hw->wiphy), ret); |
| 1851 | return 0; |
| 1852 | } |
| 1853 | |
| 1854 | at76_set_pm_mode(priv); |
| 1855 | |
| 1856 | return 0; |
| 1857 | } |
| 1858 | |
| 1859 | static void at76_dwork_hw_scan(struct work_struct *work) |
| 1860 | { |
| 1861 | struct at76_priv *priv = container_of(work, struct at76_priv, |
| 1862 | dwork_hw_scan.work); |
| 1863 | int ret; |
| 1864 | |
Jason Andryuk | deda862 | 2009-02-21 09:53:14 +0200 | [diff] [blame] | 1865 | if (priv->device_unplugged) |
| 1866 | return; |
| 1867 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1868 | mutex_lock(&priv->mtx); |
| 1869 | |
| 1870 | ret = at76_get_cmd_status(priv->udev, CMD_SCAN); |
| 1871 | at76_dbg(DBG_MAC80211, "%s: CMD_SCAN status 0x%02x", __func__, ret); |
| 1872 | |
| 1873 | /* FIXME: add maximum time for scan to complete */ |
| 1874 | |
| 1875 | if (ret != CMD_STATUS_COMPLETE) { |
| 1876 | queue_delayed_work(priv->hw->workqueue, &priv->dwork_hw_scan, |
| 1877 | SCAN_POLL_INTERVAL); |
| 1878 | goto exit; |
| 1879 | } |
| 1880 | |
Jason Andryuk | 19e8bc7 | 2009-02-18 22:40:57 +0200 | [diff] [blame] | 1881 | ieee80211_scan_completed(priv->hw, false); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1882 | |
| 1883 | if (is_valid_ether_addr(priv->bssid)) |
| 1884 | at76_join(priv); |
| 1885 | |
| 1886 | ieee80211_wake_queues(priv->hw); |
| 1887 | |
| 1888 | exit: |
| 1889 | mutex_unlock(&priv->mtx); |
| 1890 | } |
| 1891 | |
Jason Andryuk | 19e8bc7 | 2009-02-18 22:40:57 +0200 | [diff] [blame] | 1892 | static int at76_hw_scan(struct ieee80211_hw *hw, |
| 1893 | struct cfg80211_scan_request *req) |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1894 | { |
| 1895 | struct at76_priv *priv = hw->priv; |
| 1896 | struct at76_req_scan scan; |
Jason Andryuk | 19e8bc7 | 2009-02-18 22:40:57 +0200 | [diff] [blame] | 1897 | u8 *ssid = NULL; |
| 1898 | int ret, len = 0; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1899 | |
| 1900 | at76_dbg(DBG_MAC80211, "%s():", __func__); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1901 | |
Jason Andryuk | deda862 | 2009-02-21 09:53:14 +0200 | [diff] [blame] | 1902 | if (priv->device_unplugged) |
| 1903 | return 0; |
| 1904 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1905 | mutex_lock(&priv->mtx); |
| 1906 | |
| 1907 | ieee80211_stop_queues(hw); |
| 1908 | |
| 1909 | memset(&scan, 0, sizeof(struct at76_req_scan)); |
| 1910 | memset(scan.bssid, 0xFF, ETH_ALEN); |
Jason Andryuk | 19e8bc7 | 2009-02-18 22:40:57 +0200 | [diff] [blame] | 1911 | |
| 1912 | if (req->n_ssids) { |
| 1913 | scan.scan_type = SCAN_TYPE_ACTIVE; |
| 1914 | ssid = req->ssids[0].ssid; |
| 1915 | len = req->ssids[0].ssid_len; |
| 1916 | } else { |
| 1917 | scan.scan_type = SCAN_TYPE_PASSIVE; |
| 1918 | } |
| 1919 | |
| 1920 | if (len) { |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1921 | memcpy(scan.essid, ssid, len); |
| 1922 | scan.essid_size = len; |
| 1923 | } |
Jason Andryuk | 19e8bc7 | 2009-02-18 22:40:57 +0200 | [diff] [blame] | 1924 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1925 | scan.min_channel_time = cpu_to_le16(priv->scan_min_time); |
| 1926 | scan.max_channel_time = cpu_to_le16(priv->scan_max_time); |
| 1927 | scan.probe_delay = cpu_to_le16(priv->scan_min_time * 1000); |
| 1928 | scan.international_scan = 0; |
| 1929 | |
| 1930 | at76_dbg(DBG_MAC80211, "%s: sending CMD_SCAN", __func__); |
| 1931 | ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan)); |
| 1932 | |
| 1933 | if (ret < 0) { |
| 1934 | err("CMD_SCAN failed: %d", ret); |
| 1935 | goto exit; |
| 1936 | } |
| 1937 | |
| 1938 | queue_delayed_work(priv->hw->workqueue, &priv->dwork_hw_scan, |
| 1939 | SCAN_POLL_INTERVAL); |
| 1940 | |
| 1941 | exit: |
| 1942 | mutex_unlock(&priv->mtx); |
| 1943 | |
| 1944 | return 0; |
| 1945 | } |
| 1946 | |
| 1947 | static int at76_config(struct ieee80211_hw *hw, u32 changed) |
| 1948 | { |
| 1949 | struct at76_priv *priv = hw->priv; |
| 1950 | |
| 1951 | at76_dbg(DBG_MAC80211, "%s(): channel %d radio %d", |
| 1952 | __func__, hw->conf.channel->hw_value, |
| 1953 | hw->conf.radio_enabled); |
| 1954 | at76_dbg_dump(DBG_MAC80211, priv->bssid, ETH_ALEN, "bssid:"); |
| 1955 | |
| 1956 | mutex_lock(&priv->mtx); |
| 1957 | |
| 1958 | priv->channel = hw->conf.channel->hw_value; |
| 1959 | |
| 1960 | if (is_valid_ether_addr(priv->bssid)) |
| 1961 | at76_join(priv); |
| 1962 | else |
| 1963 | at76_start_monitor(priv); |
| 1964 | |
| 1965 | mutex_unlock(&priv->mtx); |
| 1966 | |
| 1967 | return 0; |
| 1968 | } |
| 1969 | |
| 1970 | static int at76_config_interface(struct ieee80211_hw *hw, |
| 1971 | struct ieee80211_vif *vif, |
| 1972 | struct ieee80211_if_conf *conf) |
| 1973 | { |
| 1974 | struct at76_priv *priv = hw->priv; |
| 1975 | |
| 1976 | at76_dbg(DBG_MAC80211, "%s():", __func__); |
| 1977 | at76_dbg_dump(DBG_MAC80211, conf->bssid, ETH_ALEN, "bssid:"); |
| 1978 | |
| 1979 | mutex_lock(&priv->mtx); |
| 1980 | |
| 1981 | memcpy(priv->bssid, conf->bssid, ETH_ALEN); |
| 1982 | |
| 1983 | if (is_valid_ether_addr(priv->bssid)) |
| 1984 | /* mac80211 is joining a bss */ |
| 1985 | at76_join(priv); |
| 1986 | |
| 1987 | mutex_unlock(&priv->mtx); |
| 1988 | |
| 1989 | return 0; |
| 1990 | } |
| 1991 | |
| 1992 | /* must be atomic */ |
| 1993 | static void at76_configure_filter(struct ieee80211_hw *hw, |
| 1994 | unsigned int changed_flags, |
| 1995 | unsigned int *total_flags, int mc_count, |
| 1996 | struct dev_addr_list *mc_list) |
| 1997 | { |
| 1998 | struct at76_priv *priv = hw->priv; |
| 1999 | int flags; |
| 2000 | |
| 2001 | at76_dbg(DBG_MAC80211, "%s(): changed_flags=0x%08x " |
| 2002 | "total_flags=0x%08x mc_count=%d", |
| 2003 | __func__, changed_flags, *total_flags, mc_count); |
| 2004 | |
| 2005 | flags = changed_flags & AT76_SUPPORTED_FILTERS; |
| 2006 | *total_flags = AT76_SUPPORTED_FILTERS; |
| 2007 | |
Jason Andryuk | deda862 | 2009-02-21 09:53:14 +0200 | [diff] [blame] | 2008 | /* Bail out after updating flags to prevent a WARN_ON in mac80211. */ |
| 2009 | if (priv->device_unplugged) |
| 2010 | return; |
| 2011 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2012 | /* FIXME: access to priv->promisc should be protected with |
| 2013 | * priv->mtx, but it's impossible because this function needs to be |
| 2014 | * atomic */ |
| 2015 | |
| 2016 | if (flags && !priv->promisc) { |
| 2017 | /* mac80211 wants us to enable promiscuous mode */ |
| 2018 | priv->promisc = 1; |
| 2019 | } else if (!flags && priv->promisc) { |
| 2020 | /* we need to disable promiscuous mode */ |
| 2021 | priv->promisc = 0; |
| 2022 | } else |
| 2023 | return; |
| 2024 | |
| 2025 | queue_work(hw->workqueue, &priv->work_set_promisc); |
| 2026 | } |
| 2027 | |
| 2028 | static int at76_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
| 2029 | struct ieee80211_vif *vif, struct ieee80211_sta *sta, |
| 2030 | struct ieee80211_key_conf *key) |
| 2031 | { |
| 2032 | struct at76_priv *priv = hw->priv; |
| 2033 | |
| 2034 | int i; |
| 2035 | |
| 2036 | at76_dbg(DBG_MAC80211, "%s(): cmd %d key->alg %d key->keyidx %d " |
| 2037 | "key->keylen %d", |
| 2038 | __func__, cmd, key->alg, key->keyidx, key->keylen); |
| 2039 | |
| 2040 | if (key->alg != ALG_WEP) |
| 2041 | return -EOPNOTSUPP; |
| 2042 | |
| 2043 | key->hw_key_idx = key->keyidx; |
| 2044 | |
| 2045 | mutex_lock(&priv->mtx); |
| 2046 | |
| 2047 | switch (cmd) { |
| 2048 | case SET_KEY: |
| 2049 | memcpy(priv->wep_keys[key->keyidx], key->key, key->keylen); |
| 2050 | priv->wep_keys_len[key->keyidx] = key->keylen; |
| 2051 | |
| 2052 | /* FIXME: find out how to do this properly */ |
| 2053 | priv->wep_key_id = key->keyidx; |
| 2054 | |
| 2055 | break; |
| 2056 | case DISABLE_KEY: |
| 2057 | default: |
| 2058 | priv->wep_keys_len[key->keyidx] = 0; |
| 2059 | break; |
| 2060 | } |
| 2061 | |
| 2062 | priv->wep_enabled = 0; |
| 2063 | |
| 2064 | for (i = 0; i < WEP_KEYS; i++) { |
| 2065 | if (priv->wep_keys_len[i] != 0) |
| 2066 | priv->wep_enabled = 1; |
| 2067 | } |
| 2068 | |
| 2069 | at76_startup_device(priv); |
| 2070 | |
| 2071 | mutex_unlock(&priv->mtx); |
| 2072 | |
| 2073 | return 0; |
| 2074 | } |
| 2075 | |
| 2076 | static const struct ieee80211_ops at76_ops = { |
| 2077 | .tx = at76_mac80211_tx, |
| 2078 | .add_interface = at76_add_interface, |
| 2079 | .remove_interface = at76_remove_interface, |
| 2080 | .config = at76_config, |
| 2081 | .config_interface = at76_config_interface, |
| 2082 | .configure_filter = at76_configure_filter, |
| 2083 | .start = at76_mac80211_start, |
| 2084 | .stop = at76_mac80211_stop, |
| 2085 | .hw_scan = at76_hw_scan, |
| 2086 | .set_key = at76_set_key, |
| 2087 | }; |
| 2088 | |
| 2089 | /* Allocate network device and initialize private data */ |
| 2090 | static struct at76_priv *at76_alloc_new_device(struct usb_device *udev) |
| 2091 | { |
| 2092 | struct ieee80211_hw *hw; |
| 2093 | struct at76_priv *priv; |
| 2094 | |
| 2095 | hw = ieee80211_alloc_hw(sizeof(struct at76_priv), &at76_ops); |
| 2096 | if (!hw) { |
| 2097 | printk(KERN_ERR DRIVER_NAME ": could not register" |
| 2098 | " ieee80211_hw\n"); |
| 2099 | return NULL; |
| 2100 | } |
| 2101 | |
| 2102 | priv = hw->priv; |
| 2103 | priv->hw = hw; |
| 2104 | |
| 2105 | priv->udev = udev; |
| 2106 | |
| 2107 | mutex_init(&priv->mtx); |
| 2108 | INIT_WORK(&priv->work_set_promisc, at76_work_set_promisc); |
| 2109 | INIT_WORK(&priv->work_submit_rx, at76_work_submit_rx); |
| 2110 | INIT_DELAYED_WORK(&priv->dwork_hw_scan, at76_dwork_hw_scan); |
| 2111 | |
Jason Andryuk | deda862 | 2009-02-21 09:53:14 +0200 | [diff] [blame] | 2112 | tasklet_init(&priv->rx_tasklet, at76_rx_tasklet, 0); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2113 | |
| 2114 | priv->pm_mode = AT76_PM_OFF; |
| 2115 | priv->pm_period = 0; |
| 2116 | |
| 2117 | /* unit us */ |
| 2118 | priv->hw->channel_change_time = 100000; |
| 2119 | |
| 2120 | return priv; |
| 2121 | } |
| 2122 | |
| 2123 | static int at76_alloc_urbs(struct at76_priv *priv, |
| 2124 | struct usb_interface *interface) |
| 2125 | { |
| 2126 | struct usb_endpoint_descriptor *endpoint, *ep_in, *ep_out; |
| 2127 | int i; |
| 2128 | int buffer_size; |
| 2129 | struct usb_host_interface *iface_desc; |
| 2130 | |
| 2131 | at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__); |
| 2132 | |
| 2133 | at76_dbg(DBG_URB, "%s: NumEndpoints %d ", __func__, |
| 2134 | interface->altsetting[0].desc.bNumEndpoints); |
| 2135 | |
| 2136 | ep_in = NULL; |
| 2137 | ep_out = NULL; |
| 2138 | iface_desc = interface->cur_altsetting; |
| 2139 | for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { |
| 2140 | endpoint = &iface_desc->endpoint[i].desc; |
| 2141 | |
| 2142 | at76_dbg(DBG_URB, "%s: %d. endpoint: addr 0x%x attr 0x%x", |
| 2143 | __func__, i, endpoint->bEndpointAddress, |
| 2144 | endpoint->bmAttributes); |
| 2145 | |
| 2146 | if (!ep_in && usb_endpoint_is_bulk_in(endpoint)) |
| 2147 | ep_in = endpoint; |
| 2148 | |
| 2149 | if (!ep_out && usb_endpoint_is_bulk_out(endpoint)) |
| 2150 | ep_out = endpoint; |
| 2151 | } |
| 2152 | |
| 2153 | if (!ep_in || !ep_out) { |
| 2154 | dev_printk(KERN_ERR, &interface->dev, |
| 2155 | "bulk endpoints missing\n"); |
| 2156 | return -ENXIO; |
| 2157 | } |
| 2158 | |
| 2159 | priv->rx_pipe = usb_rcvbulkpipe(priv->udev, ep_in->bEndpointAddress); |
| 2160 | priv->tx_pipe = usb_sndbulkpipe(priv->udev, ep_out->bEndpointAddress); |
| 2161 | |
| 2162 | priv->rx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 2163 | priv->tx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 2164 | if (!priv->rx_urb || !priv->tx_urb) { |
| 2165 | dev_printk(KERN_ERR, &interface->dev, "cannot allocate URB\n"); |
| 2166 | return -ENOMEM; |
| 2167 | } |
| 2168 | |
| 2169 | buffer_size = sizeof(struct at76_tx_buffer) + MAX_PADDING_SIZE; |
| 2170 | priv->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL); |
| 2171 | if (!priv->bulk_out_buffer) { |
| 2172 | dev_printk(KERN_ERR, &interface->dev, |
| 2173 | "cannot allocate output buffer\n"); |
| 2174 | return -ENOMEM; |
| 2175 | } |
| 2176 | |
| 2177 | at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__); |
| 2178 | |
| 2179 | return 0; |
| 2180 | } |
| 2181 | |
| 2182 | static struct ieee80211_rate at76_rates[] = { |
| 2183 | { .bitrate = 10, .hw_value = TX_RATE_1MBIT, }, |
| 2184 | { .bitrate = 20, .hw_value = TX_RATE_2MBIT, }, |
| 2185 | { .bitrate = 55, .hw_value = TX_RATE_5_5MBIT, }, |
| 2186 | { .bitrate = 110, .hw_value = TX_RATE_11MBIT, }, |
| 2187 | }; |
| 2188 | |
| 2189 | static struct ieee80211_channel at76_channels[] = { |
| 2190 | { .center_freq = 2412, .hw_value = 1 }, |
| 2191 | { .center_freq = 2417, .hw_value = 2 }, |
| 2192 | { .center_freq = 2422, .hw_value = 3 }, |
| 2193 | { .center_freq = 2427, .hw_value = 4 }, |
| 2194 | { .center_freq = 2432, .hw_value = 5 }, |
| 2195 | { .center_freq = 2437, .hw_value = 6 }, |
| 2196 | { .center_freq = 2442, .hw_value = 7 }, |
| 2197 | { .center_freq = 2447, .hw_value = 8 }, |
| 2198 | { .center_freq = 2452, .hw_value = 9 }, |
| 2199 | { .center_freq = 2457, .hw_value = 10 }, |
| 2200 | { .center_freq = 2462, .hw_value = 11 }, |
| 2201 | { .center_freq = 2467, .hw_value = 12 }, |
| 2202 | { .center_freq = 2472, .hw_value = 13 }, |
| 2203 | { .center_freq = 2484, .hw_value = 14 } |
| 2204 | }; |
| 2205 | |
| 2206 | static struct ieee80211_supported_band at76_supported_band = { |
| 2207 | .channels = at76_channels, |
| 2208 | .n_channels = ARRAY_SIZE(at76_channels), |
| 2209 | .bitrates = at76_rates, |
| 2210 | .n_bitrates = ARRAY_SIZE(at76_rates), |
| 2211 | }; |
| 2212 | |
| 2213 | /* Register network device and initialize the hardware */ |
| 2214 | static int at76_init_new_device(struct at76_priv *priv, |
| 2215 | struct usb_interface *interface) |
| 2216 | { |
| 2217 | int ret; |
| 2218 | |
| 2219 | /* set up the endpoint information */ |
| 2220 | /* check out the endpoints */ |
| 2221 | |
| 2222 | at76_dbg(DBG_DEVSTART, "USB interface: %d endpoints", |
| 2223 | interface->cur_altsetting->desc.bNumEndpoints); |
| 2224 | |
| 2225 | ret = at76_alloc_urbs(priv, interface); |
| 2226 | if (ret < 0) |
| 2227 | goto exit; |
| 2228 | |
| 2229 | /* MAC address */ |
| 2230 | ret = at76_get_hw_config(priv); |
| 2231 | if (ret < 0) { |
| 2232 | dev_printk(KERN_ERR, &interface->dev, |
| 2233 | "cannot get MAC address\n"); |
| 2234 | goto exit; |
| 2235 | } |
| 2236 | |
| 2237 | priv->domain = at76_get_reg_domain(priv->regulatory_domain); |
| 2238 | |
| 2239 | priv->channel = DEF_CHANNEL; |
| 2240 | priv->iw_mode = IW_MODE_INFRA; |
| 2241 | priv->rts_threshold = DEF_RTS_THRESHOLD; |
| 2242 | priv->frag_threshold = DEF_FRAG_THRESHOLD; |
| 2243 | priv->short_retry_limit = DEF_SHORT_RETRY_LIMIT; |
| 2244 | priv->txrate = TX_RATE_AUTO; |
| 2245 | priv->preamble_type = PREAMBLE_TYPE_LONG; |
| 2246 | priv->beacon_period = 100; |
| 2247 | priv->auth_mode = WLAN_AUTH_OPEN; |
| 2248 | priv->scan_min_time = DEF_SCAN_MIN_TIME; |
| 2249 | priv->scan_max_time = DEF_SCAN_MAX_TIME; |
| 2250 | priv->scan_mode = SCAN_TYPE_ACTIVE; |
Jason Andryuk | deda862 | 2009-02-21 09:53:14 +0200 | [diff] [blame] | 2251 | priv->device_unplugged = 0; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2252 | |
| 2253 | /* mac80211 initialisation */ |
Jason Andryuk | 19e8bc7 | 2009-02-18 22:40:57 +0200 | [diff] [blame] | 2254 | priv->hw->wiphy->max_scan_ssids = 1; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2255 | priv->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); |
| 2256 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &at76_supported_band; |
| 2257 | priv->hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | |
| 2258 | IEEE80211_HW_SIGNAL_UNSPEC; |
Jason Andryuk | 19e8bc7 | 2009-02-18 22:40:57 +0200 | [diff] [blame] | 2259 | priv->hw->max_signal = 100; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2260 | |
| 2261 | SET_IEEE80211_DEV(priv->hw, &interface->dev); |
| 2262 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); |
| 2263 | |
| 2264 | ret = ieee80211_register_hw(priv->hw); |
| 2265 | if (ret) { |
| 2266 | printk(KERN_ERR "cannot register mac80211 hw (status %d)!\n", |
| 2267 | ret); |
| 2268 | goto exit; |
| 2269 | } |
| 2270 | |
| 2271 | priv->mac80211_registered = 1; |
| 2272 | |
| 2273 | printk(KERN_INFO "%s: USB %s, MAC %s, firmware %d.%d.%d-%d\n", |
| 2274 | wiphy_name(priv->hw->wiphy), |
| 2275 | interface->dev.bus_id, mac2str(priv->mac_addr), |
| 2276 | priv->fw_version.major, priv->fw_version.minor, |
| 2277 | priv->fw_version.patch, priv->fw_version.build); |
| 2278 | printk(KERN_INFO "%s: regulatory domain 0x%02x: %s\n", |
| 2279 | wiphy_name(priv->hw->wiphy), |
| 2280 | priv->regulatory_domain, priv->domain->name); |
| 2281 | |
| 2282 | exit: |
| 2283 | return ret; |
| 2284 | } |
| 2285 | |
| 2286 | static void at76_delete_device(struct at76_priv *priv) |
| 2287 | { |
| 2288 | at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__); |
| 2289 | |
| 2290 | /* The device is gone, don't bother turning it off */ |
| 2291 | priv->device_unplugged = 1; |
| 2292 | |
Jason Andryuk | deda862 | 2009-02-21 09:53:14 +0200 | [diff] [blame] | 2293 | tasklet_kill(&priv->rx_tasklet); |
| 2294 | |
| 2295 | if (priv->mac80211_registered) { |
Jason Andryuk | 1cc198f | 2009-02-21 09:53:29 +0200 | [diff] [blame^] | 2296 | cancel_delayed_work(&priv->dwork_hw_scan); |
Jason Andryuk | deda862 | 2009-02-21 09:53:14 +0200 | [diff] [blame] | 2297 | flush_workqueue(priv->hw->workqueue); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2298 | ieee80211_unregister_hw(priv->hw); |
Jason Andryuk | deda862 | 2009-02-21 09:53:14 +0200 | [diff] [blame] | 2299 | } |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2300 | |
| 2301 | if (priv->tx_urb) { |
| 2302 | usb_kill_urb(priv->tx_urb); |
| 2303 | usb_free_urb(priv->tx_urb); |
| 2304 | } |
| 2305 | if (priv->rx_urb) { |
| 2306 | usb_kill_urb(priv->rx_urb); |
| 2307 | usb_free_urb(priv->rx_urb); |
| 2308 | } |
| 2309 | |
| 2310 | at76_dbg(DBG_PROC_ENTRY, "%s: unlinked urbs", __func__); |
| 2311 | |
Jason Andryuk | deda862 | 2009-02-21 09:53:14 +0200 | [diff] [blame] | 2312 | kfree(priv->bulk_out_buffer); |
| 2313 | |
Jason Andryuk | 1cc198f | 2009-02-21 09:53:29 +0200 | [diff] [blame^] | 2314 | del_timer_sync(&ledtrig_tx_timer); |
| 2315 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2316 | if (priv->rx_skb) |
| 2317 | kfree_skb(priv->rx_skb); |
| 2318 | |
| 2319 | usb_put_dev(priv->udev); |
| 2320 | |
| 2321 | at76_dbg(DBG_PROC_ENTRY, "%s: before freeing priv/ieee80211_hw", |
| 2322 | __func__); |
| 2323 | ieee80211_free_hw(priv->hw); |
| 2324 | |
| 2325 | at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__); |
| 2326 | } |
| 2327 | |
| 2328 | static int at76_probe(struct usb_interface *interface, |
| 2329 | const struct usb_device_id *id) |
| 2330 | { |
| 2331 | int ret; |
| 2332 | struct at76_priv *priv; |
| 2333 | struct fwentry *fwe; |
| 2334 | struct usb_device *udev; |
| 2335 | int op_mode; |
| 2336 | int need_ext_fw = 0; |
| 2337 | struct mib_fw_version fwv; |
| 2338 | int board_type = (int)id->driver_info; |
| 2339 | |
| 2340 | udev = usb_get_dev(interface_to_usbdev(interface)); |
| 2341 | |
| 2342 | /* Load firmware into kernel memory */ |
| 2343 | fwe = at76_load_firmware(udev, board_type); |
| 2344 | if (!fwe) { |
| 2345 | ret = -ENOENT; |
| 2346 | goto error; |
| 2347 | } |
| 2348 | |
| 2349 | op_mode = at76_get_op_mode(udev); |
| 2350 | |
| 2351 | at76_dbg(DBG_DEVSTART, "opmode %d", op_mode); |
| 2352 | |
| 2353 | /* we get OPMODE_NONE with 2.4.23, SMC2662W-AR ??? |
| 2354 | we get 204 with 2.4.23, Fiberline FL-WL240u (505A+RFMD2958) ??? */ |
| 2355 | |
| 2356 | if (op_mode == OPMODE_HW_CONFIG_MODE) { |
| 2357 | dev_printk(KERN_ERR, &interface->dev, |
| 2358 | "cannot handle a device in HW_CONFIG_MODE\n"); |
| 2359 | ret = -EBUSY; |
| 2360 | goto error; |
| 2361 | } |
| 2362 | |
| 2363 | if (op_mode != OPMODE_NORMAL_NIC_WITH_FLASH |
| 2364 | && op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) { |
| 2365 | /* download internal firmware part */ |
| 2366 | dev_printk(KERN_DEBUG, &interface->dev, |
| 2367 | "downloading internal firmware\n"); |
| 2368 | ret = at76_load_internal_fw(udev, fwe); |
| 2369 | if (ret < 0) { |
| 2370 | dev_printk(KERN_ERR, &interface->dev, |
| 2371 | "error %d downloading internal firmware\n", |
| 2372 | ret); |
| 2373 | goto error; |
| 2374 | } |
| 2375 | usb_put_dev(udev); |
| 2376 | return ret; |
| 2377 | } |
| 2378 | |
| 2379 | /* Internal firmware already inside the device. Get firmware |
| 2380 | * version to test if external firmware is loaded. |
| 2381 | * This works only for newer firmware, e.g. the Intersil 0.90.x |
| 2382 | * says "control timeout on ep0in" and subsequent |
| 2383 | * at76_get_op_mode() fail too :-( */ |
| 2384 | |
| 2385 | /* if version >= 0.100.x.y or device with built-in flash we can |
| 2386 | * query the device for the fw version */ |
| 2387 | if ((fwe->fw_version.major > 0 || fwe->fw_version.minor >= 100) |
| 2388 | || (op_mode == OPMODE_NORMAL_NIC_WITH_FLASH)) { |
| 2389 | ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv)); |
| 2390 | if (ret < 0 || (fwv.major | fwv.minor) == 0) |
| 2391 | need_ext_fw = 1; |
| 2392 | } else |
| 2393 | /* No way to check firmware version, reload to be sure */ |
| 2394 | need_ext_fw = 1; |
| 2395 | |
| 2396 | if (need_ext_fw) { |
| 2397 | dev_printk(KERN_DEBUG, &interface->dev, |
| 2398 | "downloading external firmware\n"); |
| 2399 | |
| 2400 | ret = at76_load_external_fw(udev, fwe); |
| 2401 | if (ret) |
| 2402 | goto error; |
| 2403 | |
| 2404 | /* Re-check firmware version */ |
| 2405 | ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv)); |
| 2406 | if (ret < 0) { |
| 2407 | dev_printk(KERN_ERR, &interface->dev, |
| 2408 | "error %d getting firmware version\n", ret); |
| 2409 | goto error; |
| 2410 | } |
| 2411 | } |
| 2412 | |
| 2413 | priv = at76_alloc_new_device(udev); |
| 2414 | if (!priv) { |
| 2415 | ret = -ENOMEM; |
| 2416 | goto error; |
| 2417 | } |
| 2418 | |
| 2419 | usb_set_intfdata(interface, priv); |
| 2420 | |
| 2421 | memcpy(&priv->fw_version, &fwv, sizeof(struct mib_fw_version)); |
| 2422 | priv->board_type = board_type; |
| 2423 | |
| 2424 | ret = at76_init_new_device(priv, interface); |
| 2425 | if (ret < 0) |
| 2426 | at76_delete_device(priv); |
| 2427 | |
| 2428 | return ret; |
| 2429 | |
| 2430 | error: |
| 2431 | usb_put_dev(udev); |
| 2432 | return ret; |
| 2433 | } |
| 2434 | |
| 2435 | static void at76_disconnect(struct usb_interface *interface) |
| 2436 | { |
| 2437 | struct at76_priv *priv; |
| 2438 | |
| 2439 | priv = usb_get_intfdata(interface); |
| 2440 | usb_set_intfdata(interface, NULL); |
| 2441 | |
| 2442 | /* Disconnect after loading internal firmware */ |
| 2443 | if (!priv) |
| 2444 | return; |
| 2445 | |
| 2446 | printk(KERN_INFO "%s: disconnecting\n", wiphy_name(priv->hw->wiphy)); |
| 2447 | at76_delete_device(priv); |
| 2448 | dev_printk(KERN_INFO, &interface->dev, "disconnected\n"); |
| 2449 | } |
| 2450 | |
| 2451 | /* Structure for registering this driver with the USB subsystem */ |
| 2452 | static struct usb_driver at76_driver = { |
| 2453 | .name = DRIVER_NAME, |
| 2454 | .probe = at76_probe, |
| 2455 | .disconnect = at76_disconnect, |
| 2456 | .id_table = dev_table, |
| 2457 | }; |
| 2458 | |
| 2459 | static int __init at76_mod_init(void) |
| 2460 | { |
| 2461 | int result; |
| 2462 | |
| 2463 | printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " loading\n"); |
| 2464 | |
| 2465 | mutex_init(&fw_mutex); |
| 2466 | |
| 2467 | /* register this driver with the USB subsystem */ |
| 2468 | result = usb_register(&at76_driver); |
| 2469 | if (result < 0) |
| 2470 | printk(KERN_ERR DRIVER_NAME |
| 2471 | ": usb_register failed (status %d)\n", result); |
| 2472 | |
| 2473 | led_trigger_register_simple("at76_usb-tx", &ledtrig_tx); |
| 2474 | return result; |
| 2475 | } |
| 2476 | |
| 2477 | static void __exit at76_mod_exit(void) |
| 2478 | { |
| 2479 | int i; |
| 2480 | |
| 2481 | printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " unloading\n"); |
| 2482 | usb_deregister(&at76_driver); |
| 2483 | for (i = 0; i < ARRAY_SIZE(firmwares); i++) { |
| 2484 | if (firmwares[i].fw) |
| 2485 | release_firmware(firmwares[i].fw); |
| 2486 | } |
| 2487 | led_trigger_unregister_simple(ledtrig_tx); |
| 2488 | } |
| 2489 | |
Jason Andryuk | 2ce4f9d | 2009-02-18 22:41:04 +0200 | [diff] [blame] | 2490 | module_param_named(debug, at76_debug, uint, 0600); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2491 | MODULE_PARM_DESC(debug, "Debugging level"); |
| 2492 | |
| 2493 | module_init(at76_mod_init); |
| 2494 | module_exit(at76_mod_exit); |
| 2495 | |
| 2496 | MODULE_AUTHOR("Oliver Kurth <oku@masqmail.cx>"); |
| 2497 | MODULE_AUTHOR("Joerg Albert <joerg.albert@gmx.de>"); |
| 2498 | MODULE_AUTHOR("Alex <alex@foogod.com>"); |
| 2499 | MODULE_AUTHOR("Nick Jones"); |
| 2500 | MODULE_AUTHOR("Balint Seeber <n0_5p4m_p13453@hotmail.com>"); |
| 2501 | MODULE_AUTHOR("Pavel Roskin <proski@gnu.org>"); |
| 2502 | MODULE_AUTHOR("Guido Guenther <agx@sigxcpu.org>"); |
| 2503 | MODULE_AUTHOR("Kalle Valo <kalle.valo@iki.fi>"); |
| 2504 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 2505 | MODULE_LICENSE("GPL"); |