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> |
Sebastian Smolorz | a185045 | 2010-06-22 16:55:17 +0200 | [diff] [blame] | 10 | * Copyright (c) 2010 Sebastian Smolorz <sesmo@gmx.net> |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 11 | * |
| 12 | * This program is free software; you can redistribute it and/or |
| 13 | * modify it under the terms of the GNU General Public License as |
| 14 | * published by the Free Software Foundation; either version 2 of |
| 15 | * the License, or (at your option) any later version. |
| 16 | * |
| 17 | * This file is part of the Berlios driver for WLAN USB devices based on the |
| 18 | * Atmel AT76C503A/505/505A. |
| 19 | * |
| 20 | * Some iw_handler code was taken from airo.c, (C) 1999 Benjamin Reed |
| 21 | * |
Kalle Valo | ba3907e | 2009-02-21 09:53:37 +0200 | [diff] [blame] | 22 | * TODO list is at the wiki: |
| 23 | * |
| 24 | * http://wireless.kernel.org/en/users/Drivers/at76c50x-usb#TODO |
| 25 | * |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 26 | */ |
| 27 | |
| 28 | #include <linux/init.h> |
| 29 | #include <linux/kernel.h> |
| 30 | #include <linux/sched.h> |
| 31 | #include <linux/errno.h> |
| 32 | #include <linux/slab.h> |
| 33 | #include <linux/module.h> |
| 34 | #include <linux/spinlock.h> |
| 35 | #include <linux/list.h> |
| 36 | #include <linux/usb.h> |
| 37 | #include <linux/netdevice.h> |
| 38 | #include <linux/if_arp.h> |
| 39 | #include <linux/etherdevice.h> |
| 40 | #include <linux/ethtool.h> |
| 41 | #include <linux/wireless.h> |
| 42 | #include <net/iw_handler.h> |
| 43 | #include <net/ieee80211_radiotap.h> |
| 44 | #include <linux/firmware.h> |
| 45 | #include <linux/leds.h> |
| 46 | #include <net/mac80211.h> |
| 47 | |
| 48 | #include "at76c50x-usb.h" |
| 49 | |
| 50 | /* Version information */ |
| 51 | #define DRIVER_NAME "at76c50x-usb" |
| 52 | #define DRIVER_VERSION "0.17" |
| 53 | #define DRIVER_DESC "Atmel at76x USB Wireless LAN Driver" |
| 54 | |
| 55 | /* at76_debug bits */ |
| 56 | #define DBG_PROGRESS 0x00000001 /* authentication/accociation */ |
| 57 | #define DBG_BSS_TABLE 0x00000002 /* show BSS table after scans */ |
| 58 | #define DBG_IOCTL 0x00000004 /* ioctl calls / settings */ |
| 59 | #define DBG_MAC_STATE 0x00000008 /* MAC state transitions */ |
| 60 | #define DBG_TX_DATA 0x00000010 /* tx header */ |
| 61 | #define DBG_TX_DATA_CONTENT 0x00000020 /* tx content */ |
| 62 | #define DBG_TX_MGMT 0x00000040 /* tx management */ |
| 63 | #define DBG_RX_DATA 0x00000080 /* rx data header */ |
| 64 | #define DBG_RX_DATA_CONTENT 0x00000100 /* rx data content */ |
| 65 | #define DBG_RX_MGMT 0x00000200 /* rx mgmt frame headers */ |
| 66 | #define DBG_RX_BEACON 0x00000400 /* rx beacon */ |
| 67 | #define DBG_RX_CTRL 0x00000800 /* rx control */ |
| 68 | #define DBG_RX_MGMT_CONTENT 0x00001000 /* rx mgmt content */ |
| 69 | #define DBG_RX_FRAGS 0x00002000 /* rx data fragment handling */ |
| 70 | #define DBG_DEVSTART 0x00004000 /* fw download, device start */ |
| 71 | #define DBG_URB 0x00008000 /* rx urb status, ... */ |
| 72 | #define DBG_RX_ATMEL_HDR 0x00010000 /* Atmel-specific Rx headers */ |
| 73 | #define DBG_PROC_ENTRY 0x00020000 /* procedure entries/exits */ |
| 74 | #define DBG_PM 0x00040000 /* power management settings */ |
| 75 | #define DBG_BSS_MATCH 0x00080000 /* BSS match failures */ |
| 76 | #define DBG_PARAMS 0x00100000 /* show configured parameters */ |
| 77 | #define DBG_WAIT_COMPLETE 0x00200000 /* command completion */ |
| 78 | #define DBG_RX_FRAGS_SKB 0x00400000 /* skb header of Rx fragments */ |
| 79 | #define DBG_BSS_TABLE_RM 0x00800000 /* purging bss table entries */ |
| 80 | #define DBG_MONITOR_MODE 0x01000000 /* monitor mode */ |
| 81 | #define DBG_MIB 0x02000000 /* dump all MIBs on startup */ |
| 82 | #define DBG_MGMT_TIMER 0x04000000 /* dump mgmt_timer ops */ |
| 83 | #define DBG_WE_EVENTS 0x08000000 /* dump wireless events */ |
| 84 | #define DBG_FW 0x10000000 /* firmware download */ |
| 85 | #define DBG_DFU 0x20000000 /* device firmware upgrade */ |
| 86 | #define DBG_CMD 0x40000000 |
| 87 | #define DBG_MAC80211 0x80000000 |
| 88 | |
| 89 | #define DBG_DEFAULTS 0 |
| 90 | |
| 91 | /* Use our own dbg macro */ |
Joe Perches | 903c99d | 2010-07-26 14:39:59 -0700 | [diff] [blame] | 92 | #define at76_dbg(bits, format, arg...) \ |
| 93 | do { \ |
| 94 | if (at76_debug & (bits)) \ |
| 95 | printk(KERN_DEBUG DRIVER_NAME ": " format "\n", ##arg); \ |
| 96 | } while (0) |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 97 | |
Joe Perches | 903c99d | 2010-07-26 14:39:59 -0700 | [diff] [blame] | 98 | #define at76_dbg_dump(bits, buf, len, format, arg...) \ |
| 99 | do { \ |
| 100 | if (at76_debug & (bits)) { \ |
| 101 | printk(KERN_DEBUG DRIVER_NAME ": " format "\n", ##arg); \ |
| 102 | print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, buf, len); \ |
| 103 | } \ |
| 104 | } while (0) |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 105 | |
Jason Andryuk | 2ce4f9d | 2009-02-18 22:41:04 +0200 | [diff] [blame] | 106 | static uint at76_debug = DBG_DEFAULTS; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 107 | |
| 108 | /* Protect against concurrent firmware loading and parsing */ |
| 109 | static struct mutex fw_mutex; |
| 110 | |
| 111 | static struct fwentry firmwares[] = { |
| 112 | [0] = { "" }, |
| 113 | [BOARD_503_ISL3861] = { "atmel_at76c503-i3861.bin" }, |
| 114 | [BOARD_503_ISL3863] = { "atmel_at76c503-i3863.bin" }, |
| 115 | [BOARD_503] = { "atmel_at76c503-rfmd.bin" }, |
| 116 | [BOARD_503_ACC] = { "atmel_at76c503-rfmd-acc.bin" }, |
| 117 | [BOARD_505] = { "atmel_at76c505-rfmd.bin" }, |
| 118 | [BOARD_505_2958] = { "atmel_at76c505-rfmd2958.bin" }, |
| 119 | [BOARD_505A] = { "atmel_at76c505a-rfmd2958.bin" }, |
| 120 | [BOARD_505AMX] = { "atmel_at76c505amx-rfmd.bin" }, |
| 121 | }; |
Ben Hutchings | 202982d | 2009-11-07 21:56:08 +0000 | [diff] [blame] | 122 | MODULE_FIRMWARE("atmel_at76c503-i3861.bin"); |
| 123 | MODULE_FIRMWARE("atmel_at76c503-i3863.bin"); |
| 124 | MODULE_FIRMWARE("atmel_at76c503-rfmd.bin"); |
| 125 | MODULE_FIRMWARE("atmel_at76c503-rfmd-acc.bin"); |
| 126 | MODULE_FIRMWARE("atmel_at76c505-rfmd.bin"); |
| 127 | MODULE_FIRMWARE("atmel_at76c505-rfmd2958.bin"); |
| 128 | MODULE_FIRMWARE("atmel_at76c505a-rfmd2958.bin"); |
| 129 | MODULE_FIRMWARE("atmel_at76c505amx-rfmd.bin"); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 130 | |
| 131 | #define USB_DEVICE_DATA(__ops) .driver_info = (kernel_ulong_t)(__ops) |
| 132 | |
| 133 | static struct usb_device_id dev_table[] = { |
| 134 | /* |
| 135 | * at76c503-i3861 |
| 136 | */ |
| 137 | /* Generic AT76C503/3861 device */ |
| 138 | { USB_DEVICE(0x03eb, 0x7603), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 139 | /* Linksys WUSB11 v2.1/v2.6 */ |
| 140 | { USB_DEVICE(0x066b, 0x2211), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 141 | /* Netgear MA101 rev. A */ |
| 142 | { USB_DEVICE(0x0864, 0x4100), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 143 | /* Tekram U300C / Allnet ALL0193 */ |
| 144 | { USB_DEVICE(0x0b3b, 0x1612), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 145 | /* HP HN210W J7801A */ |
| 146 | { USB_DEVICE(0x03f0, 0x011c), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 147 | /* Sitecom/Z-Com/Zyxel M4Y-750 */ |
| 148 | { USB_DEVICE(0x0cde, 0x0001), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 149 | /* Dynalink/Askey WLL013 (intersil) */ |
| 150 | { USB_DEVICE(0x069a, 0x0320), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 151 | /* EZ connect 11Mpbs Wireless USB Adapter SMC2662W v1 */ |
| 152 | { USB_DEVICE(0x0d5c, 0xa001), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 153 | /* BenQ AWL300 */ |
| 154 | { USB_DEVICE(0x04a5, 0x9000), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 155 | /* Addtron AWU-120, Compex WLU11 */ |
| 156 | { USB_DEVICE(0x05dd, 0xff31), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 157 | /* Intel AP310 AnyPoint II USB */ |
| 158 | { USB_DEVICE(0x8086, 0x0200), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 159 | /* Dynalink L11U */ |
| 160 | { USB_DEVICE(0x0d8e, 0x7100), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 161 | /* Arescom WL-210, FCC id 07J-GL2411USB */ |
| 162 | { USB_DEVICE(0x0d8e, 0x7110), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 163 | /* I-O DATA WN-B11/USB */ |
| 164 | { USB_DEVICE(0x04bb, 0x0919), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 165 | /* BT Voyager 1010 */ |
| 166 | { USB_DEVICE(0x069a, 0x0821), USB_DEVICE_DATA(BOARD_503_ISL3861) }, |
| 167 | /* |
| 168 | * at76c503-i3863 |
| 169 | */ |
| 170 | /* Generic AT76C503/3863 device */ |
| 171 | { USB_DEVICE(0x03eb, 0x7604), USB_DEVICE_DATA(BOARD_503_ISL3863) }, |
| 172 | /* Samsung SWL-2100U */ |
| 173 | { USB_DEVICE(0x055d, 0xa000), USB_DEVICE_DATA(BOARD_503_ISL3863) }, |
| 174 | /* |
| 175 | * at76c503-rfmd |
| 176 | */ |
| 177 | /* Generic AT76C503/RFMD device */ |
| 178 | { USB_DEVICE(0x03eb, 0x7605), USB_DEVICE_DATA(BOARD_503) }, |
| 179 | /* Dynalink/Askey WLL013 (rfmd) */ |
| 180 | { USB_DEVICE(0x069a, 0x0321), USB_DEVICE_DATA(BOARD_503) }, |
| 181 | /* Linksys WUSB11 v2.6 */ |
| 182 | { USB_DEVICE(0x077b, 0x2219), USB_DEVICE_DATA(BOARD_503) }, |
| 183 | /* Network Everywhere NWU11B */ |
| 184 | { USB_DEVICE(0x077b, 0x2227), USB_DEVICE_DATA(BOARD_503) }, |
| 185 | /* Netgear MA101 rev. B */ |
| 186 | { USB_DEVICE(0x0864, 0x4102), USB_DEVICE_DATA(BOARD_503) }, |
| 187 | /* D-Link DWL-120 rev. E */ |
| 188 | { USB_DEVICE(0x2001, 0x3200), USB_DEVICE_DATA(BOARD_503) }, |
| 189 | /* Actiontec 802UAT1, HWU01150-01UK */ |
| 190 | { USB_DEVICE(0x1668, 0x7605), USB_DEVICE_DATA(BOARD_503) }, |
| 191 | /* AirVast W-Buddie WN210 */ |
| 192 | { USB_DEVICE(0x03eb, 0x4102), USB_DEVICE_DATA(BOARD_503) }, |
| 193 | /* Dick Smith Electronics XH1153 802.11b USB adapter */ |
| 194 | { USB_DEVICE(0x1371, 0x5743), USB_DEVICE_DATA(BOARD_503) }, |
| 195 | /* CNet CNUSB611 */ |
| 196 | { USB_DEVICE(0x1371, 0x0001), USB_DEVICE_DATA(BOARD_503) }, |
| 197 | /* FiberLine FL-WL200U */ |
| 198 | { USB_DEVICE(0x1371, 0x0002), USB_DEVICE_DATA(BOARD_503) }, |
| 199 | /* BenQ AWL400 USB stick */ |
| 200 | { USB_DEVICE(0x04a5, 0x9001), USB_DEVICE_DATA(BOARD_503) }, |
| 201 | /* 3Com 3CRSHEW696 */ |
| 202 | { USB_DEVICE(0x0506, 0x0a01), USB_DEVICE_DATA(BOARD_503) }, |
| 203 | /* Siemens Santis ADSL WLAN USB adapter WLL 013 */ |
| 204 | { USB_DEVICE(0x0681, 0x001b), USB_DEVICE_DATA(BOARD_503) }, |
| 205 | /* Belkin F5D6050, version 2 */ |
| 206 | { USB_DEVICE(0x050d, 0x0050), USB_DEVICE_DATA(BOARD_503) }, |
| 207 | /* iBlitzz, BWU613 (not *B or *SB) */ |
| 208 | { USB_DEVICE(0x07b8, 0xb000), USB_DEVICE_DATA(BOARD_503) }, |
| 209 | /* Gigabyte GN-WLBM101 */ |
| 210 | { USB_DEVICE(0x1044, 0x8003), USB_DEVICE_DATA(BOARD_503) }, |
| 211 | /* Planex GW-US11S */ |
| 212 | { USB_DEVICE(0x2019, 0x3220), USB_DEVICE_DATA(BOARD_503) }, |
| 213 | /* Internal WLAN adapter in h5[4,5]xx series iPAQs */ |
| 214 | { USB_DEVICE(0x049f, 0x0032), USB_DEVICE_DATA(BOARD_503) }, |
| 215 | /* Corega Wireless LAN USB-11 mini */ |
| 216 | { USB_DEVICE(0x07aa, 0x0011), USB_DEVICE_DATA(BOARD_503) }, |
| 217 | /* Corega Wireless LAN USB-11 mini2 */ |
| 218 | { USB_DEVICE(0x07aa, 0x0018), USB_DEVICE_DATA(BOARD_503) }, |
| 219 | /* Uniden PCW100 */ |
| 220 | { USB_DEVICE(0x05dd, 0xff35), USB_DEVICE_DATA(BOARD_503) }, |
| 221 | /* |
| 222 | * at76c503-rfmd-acc |
| 223 | */ |
| 224 | /* SMC2664W */ |
| 225 | { USB_DEVICE(0x083a, 0x3501), USB_DEVICE_DATA(BOARD_503_ACC) }, |
| 226 | /* Belkin F5D6050, SMC2662W v2, SMC2662W-AR */ |
| 227 | { USB_DEVICE(0x0d5c, 0xa002), USB_DEVICE_DATA(BOARD_503_ACC) }, |
| 228 | /* |
| 229 | * at76c505-rfmd |
| 230 | */ |
| 231 | /* Generic AT76C505/RFMD */ |
| 232 | { USB_DEVICE(0x03eb, 0x7606), USB_DEVICE_DATA(BOARD_505) }, |
| 233 | /* |
| 234 | * at76c505-rfmd2958 |
| 235 | */ |
| 236 | /* Generic AT76C505/RFMD, OvisLink WL-1130USB */ |
| 237 | { USB_DEVICE(0x03eb, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) }, |
| 238 | /* Fiberline FL-WL240U */ |
| 239 | { USB_DEVICE(0x1371, 0x0014), USB_DEVICE_DATA(BOARD_505_2958) }, |
| 240 | /* CNet CNUSB-611G */ |
| 241 | { USB_DEVICE(0x1371, 0x0013), USB_DEVICE_DATA(BOARD_505_2958) }, |
| 242 | /* Linksys WUSB11 v2.8 */ |
| 243 | { USB_DEVICE(0x1915, 0x2233), USB_DEVICE_DATA(BOARD_505_2958) }, |
| 244 | /* Xterasys XN-2122B, IBlitzz BWU613B/BWU613SB */ |
| 245 | { USB_DEVICE(0x12fd, 0x1001), USB_DEVICE_DATA(BOARD_505_2958) }, |
| 246 | /* Corega WLAN USB Stick 11 */ |
| 247 | { USB_DEVICE(0x07aa, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) }, |
| 248 | /* Microstar MSI Box MS6978 */ |
| 249 | { USB_DEVICE(0x0db0, 0x1020), USB_DEVICE_DATA(BOARD_505_2958) }, |
| 250 | /* |
| 251 | * at76c505a-rfmd2958 |
| 252 | */ |
| 253 | /* Generic AT76C505A device */ |
| 254 | { USB_DEVICE(0x03eb, 0x7614), USB_DEVICE_DATA(BOARD_505A) }, |
| 255 | /* Generic AT76C505AS device */ |
| 256 | { USB_DEVICE(0x03eb, 0x7617), USB_DEVICE_DATA(BOARD_505A) }, |
| 257 | /* Siemens Gigaset USB WLAN Adapter 11 */ |
| 258 | { USB_DEVICE(0x1690, 0x0701), USB_DEVICE_DATA(BOARD_505A) }, |
Jamie Lentin | 02a9a39 | 2009-04-07 22:59:56 +0100 | [diff] [blame] | 259 | /* OQO Model 01+ Internal Wi-Fi */ |
| 260 | { USB_DEVICE(0x1557, 0x0002), USB_DEVICE_DATA(BOARD_505A) }, |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 261 | /* |
| 262 | * at76c505amx-rfmd |
| 263 | */ |
| 264 | /* Generic AT76C505AMX device */ |
| 265 | { USB_DEVICE(0x03eb, 0x7615), USB_DEVICE_DATA(BOARD_505AMX) }, |
| 266 | { } |
| 267 | }; |
| 268 | |
| 269 | MODULE_DEVICE_TABLE(usb, dev_table); |
| 270 | |
| 271 | /* Supported rates of this hardware, bit 7 marks basic rates */ |
| 272 | static const u8 hw_rates[] = { 0x82, 0x84, 0x0b, 0x16 }; |
| 273 | |
| 274 | static const char *const preambles[] = { "long", "short", "auto" }; |
| 275 | |
| 276 | /* Firmware download */ |
| 277 | /* DFU states */ |
| 278 | #define STATE_IDLE 0x00 |
| 279 | #define STATE_DETACH 0x01 |
| 280 | #define STATE_DFU_IDLE 0x02 |
| 281 | #define STATE_DFU_DOWNLOAD_SYNC 0x03 |
| 282 | #define STATE_DFU_DOWNLOAD_BUSY 0x04 |
| 283 | #define STATE_DFU_DOWNLOAD_IDLE 0x05 |
| 284 | #define STATE_DFU_MANIFEST_SYNC 0x06 |
| 285 | #define STATE_DFU_MANIFEST 0x07 |
| 286 | #define STATE_DFU_MANIFEST_WAIT_RESET 0x08 |
| 287 | #define STATE_DFU_UPLOAD_IDLE 0x09 |
| 288 | #define STATE_DFU_ERROR 0x0a |
| 289 | |
| 290 | /* DFU commands */ |
| 291 | #define DFU_DETACH 0 |
| 292 | #define DFU_DNLOAD 1 |
| 293 | #define DFU_UPLOAD 2 |
| 294 | #define DFU_GETSTATUS 3 |
| 295 | #define DFU_CLRSTATUS 4 |
| 296 | #define DFU_GETSTATE 5 |
| 297 | #define DFU_ABORT 6 |
| 298 | |
| 299 | #define FW_BLOCK_SIZE 1024 |
| 300 | |
| 301 | struct dfu_status { |
| 302 | unsigned char status; |
| 303 | unsigned char poll_timeout[3]; |
| 304 | unsigned char state; |
| 305 | unsigned char string; |
Eric Dumazet | ba2d358 | 2010-06-02 18:10:09 +0000 | [diff] [blame] | 306 | } __packed; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 307 | |
| 308 | static inline int at76_is_intersil(enum board_type board) |
| 309 | { |
| 310 | return (board == BOARD_503_ISL3861 || board == BOARD_503_ISL3863); |
| 311 | } |
| 312 | |
| 313 | static inline int at76_is_503rfmd(enum board_type board) |
| 314 | { |
| 315 | return (board == BOARD_503 || board == BOARD_503_ACC); |
| 316 | } |
| 317 | |
| 318 | static inline int at76_is_505a(enum board_type board) |
| 319 | { |
| 320 | return (board == BOARD_505A || board == BOARD_505AMX); |
| 321 | } |
| 322 | |
| 323 | /* Load a block of the first (internal) part of the firmware */ |
| 324 | static int at76_load_int_fw_block(struct usb_device *udev, int blockno, |
| 325 | void *block, int size) |
| 326 | { |
| 327 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), DFU_DNLOAD, |
| 328 | USB_TYPE_CLASS | USB_DIR_OUT | |
| 329 | USB_RECIP_INTERFACE, blockno, 0, block, size, |
| 330 | USB_CTRL_GET_TIMEOUT); |
| 331 | } |
| 332 | |
| 333 | static int at76_dfu_get_status(struct usb_device *udev, |
| 334 | struct dfu_status *status) |
| 335 | { |
| 336 | int ret; |
| 337 | |
| 338 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATUS, |
| 339 | USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, |
| 340 | 0, 0, status, sizeof(struct dfu_status), |
| 341 | USB_CTRL_GET_TIMEOUT); |
| 342 | return ret; |
| 343 | } |
| 344 | |
Dan Carpenter | 5d774b7 | 2012-08-09 09:57:30 +0300 | [diff] [blame] | 345 | static int at76_dfu_get_state(struct usb_device *udev, u8 *state) |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 346 | { |
| 347 | int ret; |
| 348 | |
| 349 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATE, |
| 350 | USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, |
| 351 | 0, 0, state, 1, USB_CTRL_GET_TIMEOUT); |
| 352 | return ret; |
| 353 | } |
| 354 | |
| 355 | /* Convert timeout from the DFU status to jiffies */ |
| 356 | static inline unsigned long at76_get_timeout(struct dfu_status *s) |
| 357 | { |
| 358 | return msecs_to_jiffies((s->poll_timeout[2] << 16) |
| 359 | | (s->poll_timeout[1] << 8) |
| 360 | | (s->poll_timeout[0])); |
| 361 | } |
| 362 | |
| 363 | /* Load internal firmware from the buffer. If manifest_sync_timeout > 0, use |
| 364 | * its value in jiffies in the MANIFEST_SYNC state. */ |
| 365 | static int at76_usbdfu_download(struct usb_device *udev, u8 *buf, u32 size, |
| 366 | int manifest_sync_timeout) |
| 367 | { |
| 368 | u8 *block; |
| 369 | struct dfu_status dfu_stat_buf; |
| 370 | int ret = 0; |
| 371 | int need_dfu_state = 1; |
| 372 | int is_done = 0; |
| 373 | u8 dfu_state = 0; |
| 374 | u32 dfu_timeout = 0; |
| 375 | int bsize = 0; |
| 376 | int blockno = 0; |
| 377 | |
| 378 | at76_dbg(DBG_DFU, "%s( %p, %u, %d)", __func__, buf, size, |
| 379 | manifest_sync_timeout); |
| 380 | |
| 381 | if (!size) { |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 382 | dev_err(&udev->dev, "FW buffer length invalid!\n"); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 383 | return -EINVAL; |
| 384 | } |
| 385 | |
| 386 | block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL); |
| 387 | if (!block) |
| 388 | return -ENOMEM; |
| 389 | |
| 390 | do { |
| 391 | if (need_dfu_state) { |
| 392 | ret = at76_dfu_get_state(udev, &dfu_state); |
| 393 | if (ret < 0) { |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 394 | dev_err(&udev->dev, |
| 395 | "cannot get DFU state: %d\n", ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 396 | goto exit; |
| 397 | } |
| 398 | need_dfu_state = 0; |
| 399 | } |
| 400 | |
| 401 | switch (dfu_state) { |
| 402 | case STATE_DFU_DOWNLOAD_SYNC: |
| 403 | at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_SYNC"); |
| 404 | ret = at76_dfu_get_status(udev, &dfu_stat_buf); |
| 405 | if (ret >= 0) { |
| 406 | dfu_state = dfu_stat_buf.state; |
| 407 | dfu_timeout = at76_get_timeout(&dfu_stat_buf); |
| 408 | need_dfu_state = 0; |
| 409 | } else |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 410 | dev_err(&udev->dev, |
| 411 | "at76_dfu_get_status returned %d\n", |
| 412 | ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 413 | break; |
| 414 | |
| 415 | case STATE_DFU_DOWNLOAD_BUSY: |
| 416 | at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_BUSY"); |
| 417 | need_dfu_state = 1; |
| 418 | |
| 419 | at76_dbg(DBG_DFU, "DFU: Resetting device"); |
| 420 | schedule_timeout_interruptible(dfu_timeout); |
| 421 | break; |
| 422 | |
| 423 | case STATE_DFU_DOWNLOAD_IDLE: |
| 424 | at76_dbg(DBG_DFU, "DOWNLOAD..."); |
| 425 | /* fall through */ |
| 426 | case STATE_DFU_IDLE: |
| 427 | at76_dbg(DBG_DFU, "DFU IDLE"); |
| 428 | |
| 429 | bsize = min_t(int, size, FW_BLOCK_SIZE); |
| 430 | memcpy(block, buf, bsize); |
| 431 | at76_dbg(DBG_DFU, "int fw, size left = %5d, " |
| 432 | "bsize = %4d, blockno = %2d", size, bsize, |
| 433 | blockno); |
| 434 | ret = |
| 435 | at76_load_int_fw_block(udev, blockno, block, bsize); |
| 436 | buf += bsize; |
| 437 | size -= bsize; |
| 438 | blockno++; |
| 439 | |
| 440 | if (ret != bsize) |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 441 | dev_err(&udev->dev, |
| 442 | "at76_load_int_fw_block returned %d\n", |
| 443 | ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 444 | need_dfu_state = 1; |
| 445 | break; |
| 446 | |
| 447 | case STATE_DFU_MANIFEST_SYNC: |
| 448 | at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_SYNC"); |
| 449 | |
| 450 | ret = at76_dfu_get_status(udev, &dfu_stat_buf); |
| 451 | if (ret < 0) |
| 452 | break; |
| 453 | |
| 454 | dfu_state = dfu_stat_buf.state; |
| 455 | dfu_timeout = at76_get_timeout(&dfu_stat_buf); |
| 456 | need_dfu_state = 0; |
| 457 | |
| 458 | /* override the timeout from the status response, |
| 459 | needed for AT76C505A */ |
| 460 | if (manifest_sync_timeout > 0) |
| 461 | dfu_timeout = manifest_sync_timeout; |
| 462 | |
| 463 | at76_dbg(DBG_DFU, "DFU: Waiting for manifest phase"); |
| 464 | schedule_timeout_interruptible(dfu_timeout); |
| 465 | break; |
| 466 | |
| 467 | case STATE_DFU_MANIFEST: |
| 468 | at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST"); |
| 469 | is_done = 1; |
| 470 | break; |
| 471 | |
| 472 | case STATE_DFU_MANIFEST_WAIT_RESET: |
| 473 | at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_WAIT_RESET"); |
| 474 | is_done = 1; |
| 475 | break; |
| 476 | |
| 477 | case STATE_DFU_UPLOAD_IDLE: |
| 478 | at76_dbg(DBG_DFU, "STATE_DFU_UPLOAD_IDLE"); |
| 479 | break; |
| 480 | |
| 481 | case STATE_DFU_ERROR: |
| 482 | at76_dbg(DBG_DFU, "STATE_DFU_ERROR"); |
| 483 | ret = -EPIPE; |
| 484 | break; |
| 485 | |
| 486 | default: |
| 487 | at76_dbg(DBG_DFU, "DFU UNKNOWN STATE (%d)", dfu_state); |
| 488 | ret = -EINVAL; |
| 489 | break; |
| 490 | } |
| 491 | } while (!is_done && (ret >= 0)); |
| 492 | |
| 493 | exit: |
| 494 | kfree(block); |
| 495 | if (ret >= 0) |
| 496 | ret = 0; |
| 497 | |
| 498 | return ret; |
| 499 | } |
| 500 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 501 | /* LED trigger */ |
| 502 | static int tx_activity; |
| 503 | static void at76_ledtrig_tx_timerfunc(unsigned long data); |
| 504 | static DEFINE_TIMER(ledtrig_tx_timer, at76_ledtrig_tx_timerfunc, 0, 0); |
| 505 | DEFINE_LED_TRIGGER(ledtrig_tx); |
| 506 | |
| 507 | static void at76_ledtrig_tx_timerfunc(unsigned long data) |
| 508 | { |
| 509 | static int tx_lastactivity; |
| 510 | |
| 511 | if (tx_lastactivity != tx_activity) { |
| 512 | tx_lastactivity = tx_activity; |
| 513 | led_trigger_event(ledtrig_tx, LED_FULL); |
| 514 | mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4); |
| 515 | } else |
| 516 | led_trigger_event(ledtrig_tx, LED_OFF); |
| 517 | } |
| 518 | |
| 519 | static void at76_ledtrig_tx_activity(void) |
| 520 | { |
| 521 | tx_activity++; |
| 522 | if (!timer_pending(&ledtrig_tx_timer)) |
| 523 | mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4); |
| 524 | } |
| 525 | |
| 526 | static int at76_remap(struct usb_device *udev) |
| 527 | { |
| 528 | int ret; |
| 529 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0a, |
| 530 | USB_TYPE_VENDOR | USB_DIR_OUT | |
| 531 | USB_RECIP_INTERFACE, 0, 0, NULL, 0, |
| 532 | USB_CTRL_GET_TIMEOUT); |
| 533 | if (ret < 0) |
| 534 | return ret; |
| 535 | return 0; |
| 536 | } |
| 537 | |
| 538 | static int at76_get_op_mode(struct usb_device *udev) |
| 539 | { |
| 540 | int ret; |
Jason Andryuk | 5a2137d | 2009-02-21 09:53:22 +0200 | [diff] [blame] | 541 | u8 saved; |
| 542 | u8 *op_mode; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 543 | |
Jason Andryuk | 5a2137d | 2009-02-21 09:53:22 +0200 | [diff] [blame] | 544 | op_mode = kmalloc(1, GFP_NOIO); |
| 545 | if (!op_mode) |
| 546 | return -ENOMEM; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 547 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, |
| 548 | USB_TYPE_VENDOR | USB_DIR_IN | |
Jason Andryuk | 5a2137d | 2009-02-21 09:53:22 +0200 | [diff] [blame] | 549 | USB_RECIP_INTERFACE, 0x01, 0, op_mode, 1, |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 550 | USB_CTRL_GET_TIMEOUT); |
Jason Andryuk | 5a2137d | 2009-02-21 09:53:22 +0200 | [diff] [blame] | 551 | saved = *op_mode; |
| 552 | kfree(op_mode); |
| 553 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 554 | if (ret < 0) |
| 555 | return ret; |
| 556 | else if (ret < 1) |
| 557 | return -EIO; |
| 558 | else |
Jason Andryuk | 5a2137d | 2009-02-21 09:53:22 +0200 | [diff] [blame] | 559 | return saved; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 560 | } |
| 561 | |
| 562 | /* Load a block of the second ("external") part of the firmware */ |
| 563 | static inline int at76_load_ext_fw_block(struct usb_device *udev, int blockno, |
| 564 | void *block, int size) |
| 565 | { |
| 566 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e, |
| 567 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, |
| 568 | 0x0802, blockno, block, size, |
| 569 | USB_CTRL_GET_TIMEOUT); |
| 570 | } |
| 571 | |
| 572 | static inline int at76_get_hw_cfg(struct usb_device *udev, |
| 573 | union at76_hwcfg *buf, int buf_size) |
| 574 | { |
| 575 | return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, |
| 576 | USB_TYPE_VENDOR | USB_DIR_IN | |
| 577 | USB_RECIP_INTERFACE, 0x0a02, 0, |
| 578 | buf, buf_size, USB_CTRL_GET_TIMEOUT); |
| 579 | } |
| 580 | |
| 581 | /* Intersil boards use a different "value" for GetHWConfig requests */ |
| 582 | static inline int at76_get_hw_cfg_intersil(struct usb_device *udev, |
| 583 | union at76_hwcfg *buf, int buf_size) |
| 584 | { |
| 585 | return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, |
| 586 | USB_TYPE_VENDOR | USB_DIR_IN | |
| 587 | USB_RECIP_INTERFACE, 0x0902, 0, |
| 588 | buf, buf_size, USB_CTRL_GET_TIMEOUT); |
| 589 | } |
| 590 | |
| 591 | /* Get the hardware configuration for the adapter and put it to the appropriate |
| 592 | * fields of 'priv' (the GetHWConfig request and interpretation of the result |
| 593 | * depends on the board type) */ |
| 594 | static int at76_get_hw_config(struct at76_priv *priv) |
| 595 | { |
| 596 | int ret; |
| 597 | union at76_hwcfg *hwcfg = kmalloc(sizeof(*hwcfg), GFP_KERNEL); |
| 598 | |
| 599 | if (!hwcfg) |
| 600 | return -ENOMEM; |
| 601 | |
| 602 | if (at76_is_intersil(priv->board_type)) { |
| 603 | ret = at76_get_hw_cfg_intersil(priv->udev, hwcfg, |
| 604 | sizeof(hwcfg->i)); |
| 605 | if (ret < 0) |
| 606 | goto exit; |
| 607 | memcpy(priv->mac_addr, hwcfg->i.mac_addr, ETH_ALEN); |
| 608 | priv->regulatory_domain = hwcfg->i.regulatory_domain; |
| 609 | } else if (at76_is_503rfmd(priv->board_type)) { |
| 610 | ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r3)); |
| 611 | if (ret < 0) |
| 612 | goto exit; |
| 613 | memcpy(priv->mac_addr, hwcfg->r3.mac_addr, ETH_ALEN); |
| 614 | priv->regulatory_domain = hwcfg->r3.regulatory_domain; |
| 615 | } else { |
| 616 | ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r5)); |
| 617 | if (ret < 0) |
| 618 | goto exit; |
| 619 | memcpy(priv->mac_addr, hwcfg->r5.mac_addr, ETH_ALEN); |
| 620 | priv->regulatory_domain = hwcfg->r5.regulatory_domain; |
| 621 | } |
| 622 | |
| 623 | exit: |
| 624 | kfree(hwcfg); |
| 625 | if (ret < 0) |
Joe Perches | 5db5584 | 2010-08-11 19:11:19 -0700 | [diff] [blame] | 626 | wiphy_err(priv->hw->wiphy, "cannot get HW Config (error %d)\n", |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 627 | ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 628 | |
| 629 | return ret; |
| 630 | } |
| 631 | |
| 632 | static struct reg_domain const *at76_get_reg_domain(u16 code) |
| 633 | { |
| 634 | int i; |
| 635 | static struct reg_domain const fd_tab[] = { |
| 636 | { 0x10, "FCC (USA)", 0x7ff }, /* ch 1-11 */ |
| 637 | { 0x20, "IC (Canada)", 0x7ff }, /* ch 1-11 */ |
| 638 | { 0x30, "ETSI (most of Europe)", 0x1fff }, /* ch 1-13 */ |
| 639 | { 0x31, "Spain", 0x600 }, /* ch 10-11 */ |
| 640 | { 0x32, "France", 0x1e00 }, /* ch 10-13 */ |
| 641 | { 0x40, "MKK (Japan)", 0x2000 }, /* ch 14 */ |
| 642 | { 0x41, "MKK1 (Japan)", 0x3fff }, /* ch 1-14 */ |
| 643 | { 0x50, "Israel", 0x3fc }, /* ch 3-9 */ |
| 644 | { 0x00, "<unknown>", 0xffffffff } /* ch 1-32 */ |
| 645 | }; |
| 646 | |
| 647 | /* Last entry is fallback for unknown domain code */ |
| 648 | for (i = 0; i < ARRAY_SIZE(fd_tab) - 1; i++) |
| 649 | if (code == fd_tab[i].code) |
| 650 | break; |
| 651 | |
| 652 | return &fd_tab[i]; |
| 653 | } |
| 654 | |
| 655 | static inline int at76_get_mib(struct usb_device *udev, u16 mib, void *buf, |
| 656 | int buf_size) |
| 657 | { |
| 658 | int ret; |
| 659 | |
| 660 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, |
| 661 | USB_TYPE_VENDOR | USB_DIR_IN | |
| 662 | USB_RECIP_INTERFACE, mib << 8, 0, buf, buf_size, |
| 663 | USB_CTRL_GET_TIMEOUT); |
| 664 | if (ret >= 0 && ret != buf_size) |
| 665 | return -EIO; |
| 666 | return ret; |
| 667 | } |
| 668 | |
| 669 | /* Return positive number for status, negative for an error */ |
| 670 | static inline int at76_get_cmd_status(struct usb_device *udev, u8 cmd) |
| 671 | { |
Jason Andryuk | 5a2137d | 2009-02-21 09:53:22 +0200 | [diff] [blame] | 672 | u8 *stat_buf; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 673 | int ret; |
| 674 | |
Jason Andryuk | 5a2137d | 2009-02-21 09:53:22 +0200 | [diff] [blame] | 675 | stat_buf = kmalloc(40, GFP_NOIO); |
| 676 | if (!stat_buf) |
| 677 | return -ENOMEM; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 678 | |
Jason Andryuk | 5a2137d | 2009-02-21 09:53:22 +0200 | [diff] [blame] | 679 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x22, |
| 680 | USB_TYPE_VENDOR | USB_DIR_IN | |
| 681 | USB_RECIP_INTERFACE, cmd, 0, stat_buf, |
| 682 | 40, USB_CTRL_GET_TIMEOUT); |
| 683 | if (ret >= 0) |
| 684 | ret = stat_buf[5]; |
| 685 | kfree(stat_buf); |
| 686 | |
| 687 | return ret; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 688 | } |
| 689 | |
| 690 | #define MAKE_CMD_CASE(c) case (c): return #c |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 691 | static const char *at76_get_cmd_string(u8 cmd_status) |
| 692 | { |
| 693 | switch (cmd_status) { |
| 694 | MAKE_CMD_CASE(CMD_SET_MIB); |
| 695 | MAKE_CMD_CASE(CMD_GET_MIB); |
| 696 | MAKE_CMD_CASE(CMD_SCAN); |
| 697 | MAKE_CMD_CASE(CMD_JOIN); |
| 698 | MAKE_CMD_CASE(CMD_START_IBSS); |
| 699 | MAKE_CMD_CASE(CMD_RADIO_ON); |
| 700 | MAKE_CMD_CASE(CMD_RADIO_OFF); |
| 701 | MAKE_CMD_CASE(CMD_STARTUP); |
| 702 | } |
| 703 | |
| 704 | return "UNKNOWN"; |
| 705 | } |
| 706 | |
Jason Andryuk | 5a2137d | 2009-02-21 09:53:22 +0200 | [diff] [blame] | 707 | 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] | 708 | int buf_size) |
| 709 | { |
| 710 | int ret; |
| 711 | struct at76_command *cmd_buf = kmalloc(sizeof(struct at76_command) + |
| 712 | buf_size, GFP_KERNEL); |
| 713 | |
| 714 | if (!cmd_buf) |
| 715 | return -ENOMEM; |
| 716 | |
| 717 | cmd_buf->cmd = cmd; |
| 718 | cmd_buf->reserved = 0; |
| 719 | cmd_buf->size = cpu_to_le16(buf_size); |
| 720 | memcpy(cmd_buf->data, buf, buf_size); |
| 721 | |
| 722 | at76_dbg_dump(DBG_CMD, cmd_buf, sizeof(struct at76_command) + buf_size, |
| 723 | "issuing command %s (0x%02x)", |
| 724 | at76_get_cmd_string(cmd), cmd); |
| 725 | |
| 726 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e, |
| 727 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, |
| 728 | 0, 0, cmd_buf, |
| 729 | sizeof(struct at76_command) + buf_size, |
| 730 | USB_CTRL_GET_TIMEOUT); |
| 731 | kfree(cmd_buf); |
| 732 | return ret; |
| 733 | } |
| 734 | |
| 735 | #define MAKE_CMD_STATUS_CASE(c) case (c): return #c |
| 736 | static const char *at76_get_cmd_status_string(u8 cmd_status) |
| 737 | { |
| 738 | switch (cmd_status) { |
| 739 | MAKE_CMD_STATUS_CASE(CMD_STATUS_IDLE); |
| 740 | MAKE_CMD_STATUS_CASE(CMD_STATUS_COMPLETE); |
| 741 | MAKE_CMD_STATUS_CASE(CMD_STATUS_UNKNOWN); |
| 742 | MAKE_CMD_STATUS_CASE(CMD_STATUS_INVALID_PARAMETER); |
| 743 | MAKE_CMD_STATUS_CASE(CMD_STATUS_FUNCTION_NOT_SUPPORTED); |
| 744 | MAKE_CMD_STATUS_CASE(CMD_STATUS_TIME_OUT); |
| 745 | MAKE_CMD_STATUS_CASE(CMD_STATUS_IN_PROGRESS); |
| 746 | MAKE_CMD_STATUS_CASE(CMD_STATUS_HOST_FAILURE); |
| 747 | MAKE_CMD_STATUS_CASE(CMD_STATUS_SCAN_FAILED); |
| 748 | } |
| 749 | |
| 750 | return "UNKNOWN"; |
| 751 | } |
| 752 | |
| 753 | /* Wait until the command is completed */ |
| 754 | static int at76_wait_completion(struct at76_priv *priv, int cmd) |
| 755 | { |
| 756 | int status = 0; |
| 757 | unsigned long timeout = jiffies + CMD_COMPLETION_TIMEOUT; |
| 758 | |
| 759 | do { |
| 760 | status = at76_get_cmd_status(priv->udev, cmd); |
| 761 | if (status < 0) { |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 762 | wiphy_err(priv->hw->wiphy, |
| 763 | "at76_get_cmd_status failed: %d\n", |
| 764 | status); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 765 | break; |
| 766 | } |
| 767 | |
| 768 | at76_dbg(DBG_WAIT_COMPLETE, |
| 769 | "%s: Waiting on cmd %d, status = %d (%s)", |
| 770 | wiphy_name(priv->hw->wiphy), cmd, status, |
| 771 | at76_get_cmd_status_string(status)); |
| 772 | |
| 773 | if (status != CMD_STATUS_IN_PROGRESS |
| 774 | && status != CMD_STATUS_IDLE) |
| 775 | break; |
| 776 | |
| 777 | schedule_timeout_interruptible(HZ / 10); /* 100 ms */ |
| 778 | if (time_after(jiffies, timeout)) { |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 779 | wiphy_err(priv->hw->wiphy, |
| 780 | "completion timeout for command %d\n", cmd); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 781 | status = -ETIMEDOUT; |
| 782 | break; |
| 783 | } |
| 784 | } while (1); |
| 785 | |
| 786 | return status; |
| 787 | } |
| 788 | |
| 789 | static int at76_set_mib(struct at76_priv *priv, struct set_mib_buffer *buf) |
| 790 | { |
| 791 | int ret; |
| 792 | |
| 793 | ret = at76_set_card_command(priv->udev, CMD_SET_MIB, buf, |
| 794 | offsetof(struct set_mib_buffer, |
| 795 | data) + buf->size); |
| 796 | if (ret < 0) |
| 797 | return ret; |
| 798 | |
| 799 | ret = at76_wait_completion(priv, CMD_SET_MIB); |
| 800 | if (ret != CMD_STATUS_COMPLETE) { |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 801 | wiphy_info(priv->hw->wiphy, |
| 802 | "set_mib: at76_wait_completion failed with %d\n", |
| 803 | ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 804 | ret = -EIO; |
| 805 | } |
| 806 | |
| 807 | return ret; |
| 808 | } |
| 809 | |
| 810 | /* Return < 0 on error, == 0 if no command sent, == 1 if cmd sent */ |
| 811 | static int at76_set_radio(struct at76_priv *priv, int enable) |
| 812 | { |
| 813 | int ret; |
| 814 | int cmd; |
| 815 | |
| 816 | if (priv->radio_on == enable) |
| 817 | return 0; |
| 818 | |
| 819 | cmd = enable ? CMD_RADIO_ON : CMD_RADIO_OFF; |
| 820 | |
| 821 | ret = at76_set_card_command(priv->udev, cmd, NULL, 0); |
| 822 | if (ret < 0) |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 823 | wiphy_err(priv->hw->wiphy, |
| 824 | "at76_set_card_command(%d) failed: %d\n", cmd, ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 825 | else |
| 826 | ret = 1; |
| 827 | |
| 828 | priv->radio_on = enable; |
| 829 | return ret; |
| 830 | } |
| 831 | |
| 832 | /* Set current power save mode (AT76_PM_OFF/AT76_PM_ON/AT76_PM_SMART) */ |
| 833 | static int at76_set_pm_mode(struct at76_priv *priv) |
| 834 | { |
| 835 | int ret = 0; |
| 836 | |
| 837 | priv->mib_buf.type = MIB_MAC_MGMT; |
| 838 | priv->mib_buf.size = 1; |
| 839 | priv->mib_buf.index = offsetof(struct mib_mac_mgmt, power_mgmt_mode); |
| 840 | priv->mib_buf.data.byte = priv->pm_mode; |
| 841 | |
| 842 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 843 | if (ret < 0) |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 844 | wiphy_err(priv->hw->wiphy, "set_mib (pm_mode) failed: %d\n", |
| 845 | ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 846 | |
| 847 | return ret; |
| 848 | } |
| 849 | |
| 850 | static int at76_set_preamble(struct at76_priv *priv, u8 type) |
| 851 | { |
| 852 | int ret = 0; |
| 853 | |
| 854 | priv->mib_buf.type = MIB_LOCAL; |
| 855 | priv->mib_buf.size = 1; |
| 856 | priv->mib_buf.index = offsetof(struct mib_local, preamble_type); |
| 857 | priv->mib_buf.data.byte = type; |
| 858 | |
| 859 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 860 | if (ret < 0) |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 861 | wiphy_err(priv->hw->wiphy, "set_mib (preamble) failed: %d\n", |
| 862 | ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 863 | |
| 864 | return ret; |
| 865 | } |
| 866 | |
| 867 | static int at76_set_frag(struct at76_priv *priv, u16 size) |
| 868 | { |
| 869 | int ret = 0; |
| 870 | |
| 871 | priv->mib_buf.type = MIB_MAC; |
| 872 | priv->mib_buf.size = 2; |
| 873 | priv->mib_buf.index = offsetof(struct mib_mac, frag_threshold); |
| 874 | priv->mib_buf.data.word = cpu_to_le16(size); |
| 875 | |
| 876 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 877 | if (ret < 0) |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 878 | wiphy_err(priv->hw->wiphy, |
| 879 | "set_mib (frag threshold) failed: %d\n", ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 880 | |
| 881 | return ret; |
| 882 | } |
| 883 | |
| 884 | static int at76_set_rts(struct at76_priv *priv, u16 size) |
| 885 | { |
| 886 | int ret = 0; |
| 887 | |
| 888 | priv->mib_buf.type = MIB_MAC; |
| 889 | priv->mib_buf.size = 2; |
| 890 | priv->mib_buf.index = offsetof(struct mib_mac, rts_threshold); |
| 891 | priv->mib_buf.data.word = cpu_to_le16(size); |
| 892 | |
| 893 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 894 | if (ret < 0) |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 895 | wiphy_err(priv->hw->wiphy, "set_mib (rts) failed: %d\n", ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 896 | |
| 897 | return ret; |
| 898 | } |
| 899 | |
| 900 | static int at76_set_autorate_fallback(struct at76_priv *priv, int onoff) |
| 901 | { |
| 902 | int ret = 0; |
| 903 | |
| 904 | priv->mib_buf.type = MIB_LOCAL; |
| 905 | priv->mib_buf.size = 1; |
| 906 | priv->mib_buf.index = offsetof(struct mib_local, txautorate_fallback); |
| 907 | priv->mib_buf.data.byte = onoff; |
| 908 | |
| 909 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 910 | if (ret < 0) |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 911 | wiphy_err(priv->hw->wiphy, |
| 912 | "set_mib (autorate fallback) failed: %d\n", ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 913 | |
| 914 | return ret; |
| 915 | } |
| 916 | |
| 917 | static void at76_dump_mib_mac_addr(struct at76_priv *priv) |
| 918 | { |
| 919 | int i; |
| 920 | int ret; |
| 921 | struct mib_mac_addr *m = kmalloc(sizeof(struct mib_mac_addr), |
| 922 | GFP_KERNEL); |
| 923 | |
| 924 | if (!m) |
| 925 | return; |
| 926 | |
| 927 | ret = at76_get_mib(priv->udev, MIB_MAC_ADDR, m, |
| 928 | sizeof(struct mib_mac_addr)); |
| 929 | if (ret < 0) { |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 930 | wiphy_err(priv->hw->wiphy, |
Joe Perches | 5db5584 | 2010-08-11 19:11:19 -0700 | [diff] [blame] | 931 | "at76_get_mib (MAC_ADDR) failed: %d\n", ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 932 | goto exit; |
| 933 | } |
| 934 | |
Jason Andryuk | a6ef92a | 2009-11-08 18:58:01 -0500 | [diff] [blame] | 935 | at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: mac_addr %pM res 0x%x 0x%x", |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 936 | wiphy_name(priv->hw->wiphy), |
Jason Andryuk | a6ef92a | 2009-11-08 18:58:01 -0500 | [diff] [blame] | 937 | m->mac_addr, m->res[0], m->res[1]); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 938 | for (i = 0; i < ARRAY_SIZE(m->group_addr); i++) |
Jason Andryuk | a6ef92a | 2009-11-08 18:58:01 -0500 | [diff] [blame] | 939 | at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: group addr %d: %pM, " |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 940 | "status %d", wiphy_name(priv->hw->wiphy), i, |
Jason Andryuk | a6ef92a | 2009-11-08 18:58:01 -0500 | [diff] [blame] | 941 | m->group_addr[i], m->group_addr_status[i]); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 942 | exit: |
| 943 | kfree(m); |
| 944 | } |
| 945 | |
| 946 | static void at76_dump_mib_mac_wep(struct at76_priv *priv) |
| 947 | { |
| 948 | int i; |
| 949 | int ret; |
| 950 | int key_len; |
| 951 | struct mib_mac_wep *m = kmalloc(sizeof(struct mib_mac_wep), GFP_KERNEL); |
| 952 | |
| 953 | if (!m) |
| 954 | return; |
| 955 | |
| 956 | ret = at76_get_mib(priv->udev, MIB_MAC_WEP, m, |
| 957 | sizeof(struct mib_mac_wep)); |
| 958 | if (ret < 0) { |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 959 | wiphy_err(priv->hw->wiphy, |
Joe Perches | 5db5584 | 2010-08-11 19:11:19 -0700 | [diff] [blame] | 960 | "at76_get_mib (MAC_WEP) failed: %d\n", ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 961 | goto exit; |
| 962 | } |
| 963 | |
| 964 | at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: priv_invoked %u def_key_id %u " |
| 965 | "key_len %u excl_unencr %u wep_icv_err %u wep_excluded %u " |
| 966 | "encr_level %u key %d", wiphy_name(priv->hw->wiphy), |
| 967 | m->privacy_invoked, m->wep_default_key_id, |
| 968 | m->wep_key_mapping_len, m->exclude_unencrypted, |
| 969 | le32_to_cpu(m->wep_icv_error_count), |
| 970 | le32_to_cpu(m->wep_excluded_count), m->encryption_level, |
| 971 | m->wep_default_key_id); |
| 972 | |
| 973 | key_len = (m->encryption_level == 1) ? |
| 974 | WEP_SMALL_KEY_LEN : WEP_LARGE_KEY_LEN; |
| 975 | |
| 976 | for (i = 0; i < WEP_KEYS; i++) |
Andy Shevchenko | 44afb60 | 2012-09-05 11:52:32 +0300 | [diff] [blame] | 977 | at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: key %d: %*phD", |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 978 | wiphy_name(priv->hw->wiphy), i, |
Andy Shevchenko | 44afb60 | 2012-09-05 11:52:32 +0300 | [diff] [blame] | 979 | key_len, m->wep_default_keyvalue[i]); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 980 | exit: |
| 981 | kfree(m); |
| 982 | } |
| 983 | |
| 984 | static void at76_dump_mib_mac_mgmt(struct at76_priv *priv) |
| 985 | { |
| 986 | int ret; |
| 987 | struct mib_mac_mgmt *m = kmalloc(sizeof(struct mib_mac_mgmt), |
| 988 | GFP_KERNEL); |
| 989 | |
| 990 | if (!m) |
| 991 | return; |
| 992 | |
| 993 | ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, m, |
| 994 | sizeof(struct mib_mac_mgmt)); |
| 995 | if (ret < 0) { |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 996 | wiphy_err(priv->hw->wiphy, |
Joe Perches | 5db5584 | 2010-08-11 19:11:19 -0700 | [diff] [blame] | 997 | "at76_get_mib (MAC_MGMT) failed: %d\n", ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 998 | goto exit; |
| 999 | } |
| 1000 | |
| 1001 | at76_dbg(DBG_MIB, "%s: MIB MAC_MGMT: beacon_period %d CFP_max_duration " |
| 1002 | "%d medium_occupancy_limit %d station_id 0x%x ATIM_window %d " |
| 1003 | "CFP_mode %d privacy_opt_impl %d DTIM_period %d CFP_period %d " |
Andy Shevchenko | 44afb60 | 2012-09-05 11:52:32 +0300 | [diff] [blame] | 1004 | "current_bssid %pM current_essid %*phD current_bss_type %d " |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1005 | "pm_mode %d ibss_change %d res %d " |
| 1006 | "multi_domain_capability_implemented %d " |
| 1007 | "international_roaming %d country_string %.3s", |
| 1008 | wiphy_name(priv->hw->wiphy), le16_to_cpu(m->beacon_period), |
| 1009 | le16_to_cpu(m->CFP_max_duration), |
| 1010 | le16_to_cpu(m->medium_occupancy_limit), |
| 1011 | le16_to_cpu(m->station_id), le16_to_cpu(m->ATIM_window), |
| 1012 | m->CFP_mode, m->privacy_option_implemented, m->DTIM_period, |
Jason Andryuk | a6ef92a | 2009-11-08 18:58:01 -0500 | [diff] [blame] | 1013 | m->CFP_period, m->current_bssid, |
Andy Shevchenko | 44afb60 | 2012-09-05 11:52:32 +0300 | [diff] [blame] | 1014 | IW_ESSID_MAX_SIZE, m->current_essid, |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1015 | m->current_bss_type, m->power_mgmt_mode, m->ibss_change, |
| 1016 | m->res, m->multi_domain_capability_implemented, |
| 1017 | m->multi_domain_capability_enabled, m->country_string); |
| 1018 | exit: |
| 1019 | kfree(m); |
| 1020 | } |
| 1021 | |
| 1022 | static void at76_dump_mib_mac(struct at76_priv *priv) |
| 1023 | { |
| 1024 | int ret; |
| 1025 | struct mib_mac *m = kmalloc(sizeof(struct mib_mac), GFP_KERNEL); |
| 1026 | |
| 1027 | if (!m) |
| 1028 | return; |
| 1029 | |
| 1030 | ret = at76_get_mib(priv->udev, MIB_MAC, m, sizeof(struct mib_mac)); |
| 1031 | if (ret < 0) { |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 1032 | wiphy_err(priv->hw->wiphy, |
Joe Perches | 5db5584 | 2010-08-11 19:11:19 -0700 | [diff] [blame] | 1033 | "at76_get_mib (MAC) failed: %d\n", ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1034 | goto exit; |
| 1035 | } |
| 1036 | |
| 1037 | at76_dbg(DBG_MIB, "%s: MIB MAC: max_tx_msdu_lifetime %d " |
| 1038 | "max_rx_lifetime %d frag_threshold %d rts_threshold %d " |
| 1039 | "cwmin %d cwmax %d short_retry_time %d long_retry_time %d " |
| 1040 | "scan_type %d scan_channel %d probe_delay %u " |
| 1041 | "min_channel_time %d max_channel_time %d listen_int %d " |
Andy Shevchenko | 44afb60 | 2012-09-05 11:52:32 +0300 | [diff] [blame] | 1042 | "desired_ssid %*phD desired_bssid %pM desired_bsstype %d", |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1043 | wiphy_name(priv->hw->wiphy), |
| 1044 | le32_to_cpu(m->max_tx_msdu_lifetime), |
| 1045 | le32_to_cpu(m->max_rx_lifetime), |
| 1046 | le16_to_cpu(m->frag_threshold), le16_to_cpu(m->rts_threshold), |
| 1047 | le16_to_cpu(m->cwmin), le16_to_cpu(m->cwmax), |
| 1048 | m->short_retry_time, m->long_retry_time, m->scan_type, |
| 1049 | m->scan_channel, le16_to_cpu(m->probe_delay), |
| 1050 | le16_to_cpu(m->min_channel_time), |
| 1051 | le16_to_cpu(m->max_channel_time), |
| 1052 | le16_to_cpu(m->listen_interval), |
Andy Shevchenko | 44afb60 | 2012-09-05 11:52:32 +0300 | [diff] [blame] | 1053 | IW_ESSID_MAX_SIZE, m->desired_ssid, |
Jason Andryuk | a6ef92a | 2009-11-08 18:58:01 -0500 | [diff] [blame] | 1054 | m->desired_bssid, m->desired_bsstype); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1055 | exit: |
| 1056 | kfree(m); |
| 1057 | } |
| 1058 | |
| 1059 | static void at76_dump_mib_phy(struct at76_priv *priv) |
| 1060 | { |
| 1061 | int ret; |
| 1062 | struct mib_phy *m = kmalloc(sizeof(struct mib_phy), GFP_KERNEL); |
| 1063 | |
| 1064 | if (!m) |
| 1065 | return; |
| 1066 | |
| 1067 | ret = at76_get_mib(priv->udev, MIB_PHY, m, sizeof(struct mib_phy)); |
| 1068 | if (ret < 0) { |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 1069 | wiphy_err(priv->hw->wiphy, |
Joe Perches | 5db5584 | 2010-08-11 19:11:19 -0700 | [diff] [blame] | 1070 | "at76_get_mib (PHY) failed: %d\n", ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1071 | goto exit; |
| 1072 | } |
| 1073 | |
| 1074 | at76_dbg(DBG_MIB, "%s: MIB PHY: ed_threshold %d slot_time %d " |
| 1075 | "sifs_time %d preamble_length %d plcp_header_length %d " |
| 1076 | "mpdu_max_length %d cca_mode_supported %d operation_rate_set " |
| 1077 | "0x%x 0x%x 0x%x 0x%x channel_id %d current_cca_mode %d " |
| 1078 | "phy_type %d current_reg_domain %d", |
| 1079 | wiphy_name(priv->hw->wiphy), le32_to_cpu(m->ed_threshold), |
| 1080 | le16_to_cpu(m->slot_time), le16_to_cpu(m->sifs_time), |
| 1081 | le16_to_cpu(m->preamble_length), |
| 1082 | le16_to_cpu(m->plcp_header_length), |
| 1083 | le16_to_cpu(m->mpdu_max_length), |
| 1084 | le16_to_cpu(m->cca_mode_supported), m->operation_rate_set[0], |
| 1085 | m->operation_rate_set[1], m->operation_rate_set[2], |
| 1086 | m->operation_rate_set[3], m->channel_id, m->current_cca_mode, |
| 1087 | m->phy_type, m->current_reg_domain); |
| 1088 | exit: |
| 1089 | kfree(m); |
| 1090 | } |
| 1091 | |
| 1092 | static void at76_dump_mib_local(struct at76_priv *priv) |
| 1093 | { |
| 1094 | int ret; |
Dan Carpenter | 62c5054 | 2012-04-21 15:23:44 +0300 | [diff] [blame] | 1095 | struct mib_local *m = kmalloc(sizeof(*m), GFP_KERNEL); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1096 | |
| 1097 | if (!m) |
| 1098 | return; |
| 1099 | |
Dan Carpenter | 62c5054 | 2012-04-21 15:23:44 +0300 | [diff] [blame] | 1100 | ret = at76_get_mib(priv->udev, MIB_LOCAL, m, sizeof(*m)); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1101 | if (ret < 0) { |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 1102 | wiphy_err(priv->hw->wiphy, |
Joe Perches | 5db5584 | 2010-08-11 19:11:19 -0700 | [diff] [blame] | 1103 | "at76_get_mib (LOCAL) failed: %d\n", ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1104 | goto exit; |
| 1105 | } |
| 1106 | |
| 1107 | at76_dbg(DBG_MIB, "%s: MIB LOCAL: beacon_enable %d " |
| 1108 | "txautorate_fallback %d ssid_size %d promiscuous_mode %d " |
| 1109 | "preamble_type %d", wiphy_name(priv->hw->wiphy), |
| 1110 | m->beacon_enable, |
| 1111 | m->txautorate_fallback, m->ssid_size, m->promiscuous_mode, |
| 1112 | m->preamble_type); |
| 1113 | exit: |
| 1114 | kfree(m); |
| 1115 | } |
| 1116 | |
| 1117 | static void at76_dump_mib_mdomain(struct at76_priv *priv) |
| 1118 | { |
| 1119 | int ret; |
| 1120 | struct mib_mdomain *m = kmalloc(sizeof(struct mib_mdomain), GFP_KERNEL); |
| 1121 | |
| 1122 | if (!m) |
| 1123 | return; |
| 1124 | |
| 1125 | ret = at76_get_mib(priv->udev, MIB_MDOMAIN, m, |
| 1126 | sizeof(struct mib_mdomain)); |
| 1127 | if (ret < 0) { |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 1128 | wiphy_err(priv->hw->wiphy, |
Joe Perches | 5db5584 | 2010-08-11 19:11:19 -0700 | [diff] [blame] | 1129 | "at76_get_mib (MDOMAIN) failed: %d\n", ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1130 | goto exit; |
| 1131 | } |
| 1132 | |
Andy Shevchenko | 44afb60 | 2012-09-05 11:52:32 +0300 | [diff] [blame] | 1133 | at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: channel_list %*phD", |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1134 | wiphy_name(priv->hw->wiphy), |
Andy Shevchenko | 44afb60 | 2012-09-05 11:52:32 +0300 | [diff] [blame] | 1135 | (int)sizeof(m->channel_list), m->channel_list); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1136 | |
Andy Shevchenko | 44afb60 | 2012-09-05 11:52:32 +0300 | [diff] [blame] | 1137 | at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: tx_powerlevel %*phD", |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1138 | wiphy_name(priv->hw->wiphy), |
Andy Shevchenko | 44afb60 | 2012-09-05 11:52:32 +0300 | [diff] [blame] | 1139 | (int)sizeof(m->tx_powerlevel), m->tx_powerlevel); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1140 | exit: |
| 1141 | kfree(m); |
| 1142 | } |
| 1143 | |
| 1144 | /* Enable monitor mode */ |
| 1145 | static int at76_start_monitor(struct at76_priv *priv) |
| 1146 | { |
| 1147 | struct at76_req_scan scan; |
| 1148 | int ret; |
| 1149 | |
| 1150 | memset(&scan, 0, sizeof(struct at76_req_scan)); |
| 1151 | memset(scan.bssid, 0xff, ETH_ALEN); |
| 1152 | |
| 1153 | scan.channel = priv->channel; |
| 1154 | scan.scan_type = SCAN_TYPE_PASSIVE; |
| 1155 | scan.international_scan = 0; |
Jason Andryuk | 13b409c | 2009-11-08 19:02:19 -0500 | [diff] [blame] | 1156 | scan.min_channel_time = cpu_to_le16(priv->scan_min_time); |
| 1157 | scan.max_channel_time = cpu_to_le16(priv->scan_max_time); |
| 1158 | scan.probe_delay = cpu_to_le16(0); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1159 | |
| 1160 | ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan)); |
| 1161 | if (ret >= 0) |
| 1162 | ret = at76_get_cmd_status(priv->udev, CMD_SCAN); |
| 1163 | |
| 1164 | return ret; |
| 1165 | } |
| 1166 | |
| 1167 | /* Calculate padding from txbuf->wlength (which excludes the USB TX header), |
| 1168 | likely to compensate a flaw in the AT76C503A USB part ... */ |
| 1169 | static inline int at76_calc_padding(int wlen) |
| 1170 | { |
| 1171 | /* add the USB TX header */ |
| 1172 | wlen += AT76_TX_HDRLEN; |
| 1173 | |
| 1174 | wlen = wlen % 64; |
| 1175 | |
| 1176 | if (wlen < 50) |
| 1177 | return 50 - wlen; |
| 1178 | |
| 1179 | if (wlen >= 61) |
| 1180 | return 64 + 50 - wlen; |
| 1181 | |
| 1182 | return 0; |
| 1183 | } |
| 1184 | |
| 1185 | static void at76_rx_callback(struct urb *urb) |
| 1186 | { |
| 1187 | struct at76_priv *priv = urb->context; |
| 1188 | |
| 1189 | priv->rx_tasklet.data = (unsigned long)urb; |
| 1190 | tasklet_schedule(&priv->rx_tasklet); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1191 | } |
| 1192 | |
| 1193 | static int at76_submit_rx_urb(struct at76_priv *priv) |
| 1194 | { |
| 1195 | int ret; |
| 1196 | int size; |
| 1197 | struct sk_buff *skb = priv->rx_skb; |
| 1198 | |
| 1199 | if (!priv->rx_urb) { |
Joe Perches | 5db5584 | 2010-08-11 19:11:19 -0700 | [diff] [blame] | 1200 | wiphy_err(priv->hw->wiphy, "%s: priv->rx_urb is NULL\n", |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 1201 | __func__); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1202 | return -EFAULT; |
| 1203 | } |
| 1204 | |
| 1205 | if (!skb) { |
| 1206 | skb = dev_alloc_skb(sizeof(struct at76_rx_buffer)); |
| 1207 | if (!skb) { |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 1208 | wiphy_err(priv->hw->wiphy, |
| 1209 | "cannot allocate rx skbuff\n"); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1210 | ret = -ENOMEM; |
| 1211 | goto exit; |
| 1212 | } |
| 1213 | priv->rx_skb = skb; |
| 1214 | } else { |
| 1215 | skb_push(skb, skb_headroom(skb)); |
| 1216 | skb_trim(skb, 0); |
| 1217 | } |
| 1218 | |
| 1219 | size = skb_tailroom(skb); |
| 1220 | usb_fill_bulk_urb(priv->rx_urb, priv->udev, priv->rx_pipe, |
| 1221 | skb_put(skb, size), size, at76_rx_callback, priv); |
| 1222 | ret = usb_submit_urb(priv->rx_urb, GFP_ATOMIC); |
| 1223 | if (ret < 0) { |
| 1224 | if (ret == -ENODEV) |
| 1225 | at76_dbg(DBG_DEVSTART, |
| 1226 | "usb_submit_urb returned -ENODEV"); |
| 1227 | else |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 1228 | wiphy_err(priv->hw->wiphy, |
| 1229 | "rx, usb_submit_urb failed: %d\n", ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1230 | } |
| 1231 | |
| 1232 | exit: |
| 1233 | if (ret < 0 && ret != -ENODEV) |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 1234 | wiphy_err(priv->hw->wiphy, |
| 1235 | "cannot submit rx urb - please unload the driver and/or power cycle the device\n"); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1236 | |
| 1237 | return ret; |
| 1238 | } |
| 1239 | |
| 1240 | /* Download external firmware */ |
| 1241 | static int at76_load_external_fw(struct usb_device *udev, struct fwentry *fwe) |
| 1242 | { |
| 1243 | int ret; |
| 1244 | int op_mode; |
| 1245 | int blockno = 0; |
| 1246 | int bsize; |
| 1247 | u8 *block; |
| 1248 | u8 *buf = fwe->extfw; |
| 1249 | int size = fwe->extfw_size; |
| 1250 | |
| 1251 | if (!buf || !size) |
| 1252 | return -ENOENT; |
| 1253 | |
| 1254 | op_mode = at76_get_op_mode(udev); |
| 1255 | at76_dbg(DBG_DEVSTART, "opmode %d", op_mode); |
| 1256 | |
| 1257 | if (op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) { |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 1258 | dev_err(&udev->dev, "unexpected opmode %d\n", op_mode); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1259 | return -EINVAL; |
| 1260 | } |
| 1261 | |
| 1262 | block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL); |
| 1263 | if (!block) |
| 1264 | return -ENOMEM; |
| 1265 | |
| 1266 | at76_dbg(DBG_DEVSTART, "downloading external firmware"); |
| 1267 | |
| 1268 | /* for fw >= 0.100, the device needs an extra empty block */ |
| 1269 | do { |
| 1270 | bsize = min_t(int, size, FW_BLOCK_SIZE); |
| 1271 | memcpy(block, buf, bsize); |
| 1272 | at76_dbg(DBG_DEVSTART, |
| 1273 | "ext fw, size left = %5d, bsize = %4d, blockno = %2d", |
| 1274 | size, bsize, blockno); |
| 1275 | ret = at76_load_ext_fw_block(udev, blockno, block, bsize); |
| 1276 | if (ret != bsize) { |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 1277 | dev_err(&udev->dev, |
| 1278 | "loading %dth firmware block failed: %d\n", |
| 1279 | blockno, ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1280 | goto exit; |
| 1281 | } |
| 1282 | buf += bsize; |
| 1283 | size -= bsize; |
| 1284 | blockno++; |
| 1285 | } while (bsize > 0); |
| 1286 | |
| 1287 | if (at76_is_505a(fwe->board_type)) { |
| 1288 | at76_dbg(DBG_DEVSTART, "200 ms delay for 505a"); |
| 1289 | schedule_timeout_interruptible(HZ / 5 + 1); |
| 1290 | } |
| 1291 | |
| 1292 | exit: |
| 1293 | kfree(block); |
| 1294 | if (ret < 0) |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 1295 | dev_err(&udev->dev, |
| 1296 | "downloading external firmware failed: %d\n", ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1297 | return ret; |
| 1298 | } |
| 1299 | |
| 1300 | /* Download internal firmware */ |
| 1301 | static int at76_load_internal_fw(struct usb_device *udev, struct fwentry *fwe) |
| 1302 | { |
| 1303 | int ret; |
| 1304 | int need_remap = !at76_is_505a(fwe->board_type); |
| 1305 | |
| 1306 | ret = at76_usbdfu_download(udev, fwe->intfw, fwe->intfw_size, |
| 1307 | need_remap ? 0 : 2 * HZ); |
| 1308 | |
| 1309 | if (ret < 0) { |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 1310 | dev_err(&udev->dev, |
| 1311 | "downloading internal fw failed with %d\n", ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1312 | goto exit; |
| 1313 | } |
| 1314 | |
| 1315 | at76_dbg(DBG_DEVSTART, "sending REMAP"); |
| 1316 | |
| 1317 | /* no REMAP for 505A (see SF driver) */ |
| 1318 | if (need_remap) { |
| 1319 | ret = at76_remap(udev); |
| 1320 | if (ret < 0) { |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 1321 | dev_err(&udev->dev, |
| 1322 | "sending REMAP failed with %d\n", ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1323 | goto exit; |
| 1324 | } |
| 1325 | } |
| 1326 | |
| 1327 | at76_dbg(DBG_DEVSTART, "sleeping for 2 seconds"); |
| 1328 | schedule_timeout_interruptible(2 * HZ + 1); |
| 1329 | usb_reset_device(udev); |
| 1330 | |
| 1331 | exit: |
| 1332 | return ret; |
| 1333 | } |
| 1334 | |
| 1335 | static int at76_startup_device(struct at76_priv *priv) |
| 1336 | { |
| 1337 | struct at76_card_config *ccfg = &priv->card_config; |
| 1338 | int ret; |
| 1339 | |
| 1340 | at76_dbg(DBG_PARAMS, |
Andy Shevchenko | 44afb60 | 2012-09-05 11:52:32 +0300 | [diff] [blame] | 1341 | "%s param: ssid %.*s (%*phD) mode %s ch %d wep %s key %d " |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1342 | "keylen %d", wiphy_name(priv->hw->wiphy), priv->essid_size, |
Andy Shevchenko | 44afb60 | 2012-09-05 11:52:32 +0300 | [diff] [blame] | 1343 | priv->essid, IW_ESSID_MAX_SIZE, priv->essid, |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1344 | priv->iw_mode == IW_MODE_ADHOC ? "adhoc" : "infra", |
| 1345 | priv->channel, priv->wep_enabled ? "enabled" : "disabled", |
| 1346 | priv->wep_key_id, priv->wep_keys_len[priv->wep_key_id]); |
| 1347 | at76_dbg(DBG_PARAMS, |
| 1348 | "%s param: preamble %s rts %d retry %d frag %d " |
| 1349 | "txrate %s auth_mode %d", wiphy_name(priv->hw->wiphy), |
| 1350 | preambles[priv->preamble_type], priv->rts_threshold, |
| 1351 | priv->short_retry_limit, priv->frag_threshold, |
| 1352 | priv->txrate == TX_RATE_1MBIT ? "1MBit" : priv->txrate == |
| 1353 | TX_RATE_2MBIT ? "2MBit" : priv->txrate == |
| 1354 | TX_RATE_5_5MBIT ? "5.5MBit" : priv->txrate == |
| 1355 | TX_RATE_11MBIT ? "11MBit" : priv->txrate == |
| 1356 | TX_RATE_AUTO ? "auto" : "<invalid>", priv->auth_mode); |
| 1357 | at76_dbg(DBG_PARAMS, |
| 1358 | "%s param: pm_mode %d pm_period %d auth_mode %s " |
| 1359 | "scan_times %d %d scan_mode %s", |
| 1360 | wiphy_name(priv->hw->wiphy), priv->pm_mode, priv->pm_period, |
| 1361 | priv->auth_mode == WLAN_AUTH_OPEN ? "open" : "shared_secret", |
| 1362 | priv->scan_min_time, priv->scan_max_time, |
| 1363 | priv->scan_mode == SCAN_TYPE_ACTIVE ? "active" : "passive"); |
| 1364 | |
| 1365 | memset(ccfg, 0, sizeof(struct at76_card_config)); |
| 1366 | ccfg->promiscuous_mode = 0; |
| 1367 | ccfg->short_retry_limit = priv->short_retry_limit; |
| 1368 | |
| 1369 | if (priv->wep_enabled) { |
| 1370 | if (priv->wep_keys_len[priv->wep_key_id] > WEP_SMALL_KEY_LEN) |
| 1371 | ccfg->encryption_type = 2; |
| 1372 | else |
| 1373 | ccfg->encryption_type = 1; |
| 1374 | |
| 1375 | /* jal: always exclude unencrypted if WEP is active */ |
| 1376 | ccfg->exclude_unencrypted = 1; |
| 1377 | } else { |
| 1378 | ccfg->exclude_unencrypted = 0; |
| 1379 | ccfg->encryption_type = 0; |
| 1380 | } |
| 1381 | |
| 1382 | ccfg->rts_threshold = cpu_to_le16(priv->rts_threshold); |
| 1383 | ccfg->fragmentation_threshold = cpu_to_le16(priv->frag_threshold); |
| 1384 | |
| 1385 | memcpy(ccfg->basic_rate_set, hw_rates, 4); |
| 1386 | /* jal: really needed, we do a set_mib for autorate later ??? */ |
| 1387 | ccfg->auto_rate_fallback = (priv->txrate == TX_RATE_AUTO ? 1 : 0); |
| 1388 | ccfg->channel = priv->channel; |
| 1389 | ccfg->privacy_invoked = priv->wep_enabled; |
| 1390 | memcpy(ccfg->current_ssid, priv->essid, IW_ESSID_MAX_SIZE); |
| 1391 | ccfg->ssid_len = priv->essid_size; |
| 1392 | |
| 1393 | ccfg->wep_default_key_id = priv->wep_key_id; |
| 1394 | memcpy(ccfg->wep_default_key_value, priv->wep_keys, |
| 1395 | sizeof(priv->wep_keys)); |
| 1396 | |
| 1397 | ccfg->short_preamble = priv->preamble_type; |
| 1398 | ccfg->beacon_period = cpu_to_le16(priv->beacon_period); |
| 1399 | |
| 1400 | ret = at76_set_card_command(priv->udev, CMD_STARTUP, &priv->card_config, |
| 1401 | sizeof(struct at76_card_config)); |
| 1402 | if (ret < 0) { |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 1403 | wiphy_err(priv->hw->wiphy, "at76_set_card_command failed: %d\n", |
| 1404 | ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1405 | return ret; |
| 1406 | } |
| 1407 | |
| 1408 | at76_wait_completion(priv, CMD_STARTUP); |
| 1409 | |
| 1410 | /* remove BSSID from previous run */ |
| 1411 | memset(priv->bssid, 0, ETH_ALEN); |
| 1412 | |
| 1413 | if (at76_set_radio(priv, 1) == 1) |
| 1414 | at76_wait_completion(priv, CMD_RADIO_ON); |
| 1415 | |
| 1416 | ret = at76_set_preamble(priv, priv->preamble_type); |
| 1417 | if (ret < 0) |
| 1418 | return ret; |
| 1419 | |
| 1420 | ret = at76_set_frag(priv, priv->frag_threshold); |
| 1421 | if (ret < 0) |
| 1422 | return ret; |
| 1423 | |
| 1424 | ret = at76_set_rts(priv, priv->rts_threshold); |
| 1425 | if (ret < 0) |
| 1426 | return ret; |
| 1427 | |
| 1428 | ret = at76_set_autorate_fallback(priv, |
| 1429 | priv->txrate == TX_RATE_AUTO ? 1 : 0); |
| 1430 | if (ret < 0) |
| 1431 | return ret; |
| 1432 | |
| 1433 | ret = at76_set_pm_mode(priv); |
| 1434 | if (ret < 0) |
| 1435 | return ret; |
| 1436 | |
| 1437 | if (at76_debug & DBG_MIB) { |
| 1438 | at76_dump_mib_mac(priv); |
| 1439 | at76_dump_mib_mac_addr(priv); |
| 1440 | at76_dump_mib_mac_mgmt(priv); |
| 1441 | at76_dump_mib_mac_wep(priv); |
| 1442 | at76_dump_mib_mdomain(priv); |
| 1443 | at76_dump_mib_phy(priv); |
| 1444 | at76_dump_mib_local(priv); |
| 1445 | } |
| 1446 | |
| 1447 | return 0; |
| 1448 | } |
| 1449 | |
| 1450 | /* Enable or disable promiscuous mode */ |
| 1451 | static void at76_work_set_promisc(struct work_struct *work) |
| 1452 | { |
| 1453 | struct at76_priv *priv = container_of(work, struct at76_priv, |
| 1454 | work_set_promisc); |
| 1455 | int ret = 0; |
| 1456 | |
Jason Andryuk | 1cc198f | 2009-02-21 09:53:29 +0200 | [diff] [blame] | 1457 | if (priv->device_unplugged) |
| 1458 | return; |
| 1459 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1460 | mutex_lock(&priv->mtx); |
| 1461 | |
| 1462 | priv->mib_buf.type = MIB_LOCAL; |
| 1463 | priv->mib_buf.size = 1; |
| 1464 | priv->mib_buf.index = offsetof(struct mib_local, promiscuous_mode); |
| 1465 | priv->mib_buf.data.byte = priv->promisc ? 1 : 0; |
| 1466 | |
| 1467 | ret = at76_set_mib(priv, &priv->mib_buf); |
| 1468 | if (ret < 0) |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 1469 | wiphy_err(priv->hw->wiphy, |
| 1470 | "set_mib (promiscuous_mode) failed: %d\n", ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1471 | |
| 1472 | mutex_unlock(&priv->mtx); |
| 1473 | } |
| 1474 | |
| 1475 | /* Submit Rx urb back to the device */ |
| 1476 | static void at76_work_submit_rx(struct work_struct *work) |
| 1477 | { |
| 1478 | struct at76_priv *priv = container_of(work, struct at76_priv, |
| 1479 | work_submit_rx); |
| 1480 | |
| 1481 | mutex_lock(&priv->mtx); |
| 1482 | at76_submit_rx_urb(priv); |
| 1483 | mutex_unlock(&priv->mtx); |
| 1484 | } |
| 1485 | |
| 1486 | static void at76_rx_tasklet(unsigned long param) |
| 1487 | { |
| 1488 | struct urb *urb = (struct urb *)param; |
| 1489 | struct at76_priv *priv = urb->context; |
| 1490 | struct at76_rx_buffer *buf; |
| 1491 | struct ieee80211_rx_status rx_status = { 0 }; |
| 1492 | |
| 1493 | if (priv->device_unplugged) { |
| 1494 | at76_dbg(DBG_DEVSTART, "device unplugged"); |
Jiri Slaby | a932519 | 2010-10-11 11:27:32 +0200 | [diff] [blame] | 1495 | at76_dbg(DBG_DEVSTART, "urb status %d", urb->status); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1496 | return; |
| 1497 | } |
| 1498 | |
| 1499 | if (!priv->rx_skb || !priv->rx_skb->data) |
| 1500 | return; |
| 1501 | |
| 1502 | buf = (struct at76_rx_buffer *)priv->rx_skb->data; |
| 1503 | |
| 1504 | if (urb->status != 0) { |
| 1505 | if (urb->status != -ENOENT && urb->status != -ECONNRESET) |
| 1506 | at76_dbg(DBG_URB, |
| 1507 | "%s %s: - nonzero Rx bulk status received: %d", |
| 1508 | __func__, wiphy_name(priv->hw->wiphy), |
| 1509 | urb->status); |
| 1510 | return; |
| 1511 | } |
| 1512 | |
| 1513 | at76_dbg(DBG_RX_ATMEL_HDR, |
| 1514 | "%s: rx frame: rate %d rssi %d noise %d link %d", |
| 1515 | wiphy_name(priv->hw->wiphy), buf->rx_rate, buf->rssi, |
| 1516 | buf->noise_level, buf->link_quality); |
| 1517 | |
| 1518 | skb_pull(priv->rx_skb, AT76_RX_HDRLEN); |
| 1519 | skb_trim(priv->rx_skb, le16_to_cpu(buf->wlength)); |
| 1520 | at76_dbg_dump(DBG_RX_DATA, priv->rx_skb->data, |
| 1521 | priv->rx_skb->len, "RX: len=%d", priv->rx_skb->len); |
| 1522 | |
| 1523 | rx_status.signal = buf->rssi; |
| 1524 | rx_status.flag |= RX_FLAG_DECRYPTED; |
| 1525 | rx_status.flag |= RX_FLAG_IV_STRIPPED; |
| 1526 | |
| 1527 | at76_dbg(DBG_MAC80211, "calling ieee80211_rx_irqsafe(): %d/%d", |
| 1528 | priv->rx_skb->len, priv->rx_skb->data_len); |
Johannes Berg | f1d58c2 | 2009-06-17 13:13:00 +0200 | [diff] [blame] | 1529 | memcpy(IEEE80211_SKB_RXCB(priv->rx_skb), &rx_status, sizeof(rx_status)); |
| 1530 | ieee80211_rx_irqsafe(priv->hw, priv->rx_skb); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1531 | |
| 1532 | /* Use a new skb for the next receive */ |
| 1533 | priv->rx_skb = NULL; |
| 1534 | |
| 1535 | at76_submit_rx_urb(priv); |
| 1536 | } |
| 1537 | |
| 1538 | /* Load firmware into kernel memory and parse it */ |
| 1539 | static struct fwentry *at76_load_firmware(struct usb_device *udev, |
| 1540 | enum board_type board_type) |
| 1541 | { |
| 1542 | int ret; |
| 1543 | char *str; |
| 1544 | struct at76_fw_header *fwh; |
| 1545 | struct fwentry *fwe = &firmwares[board_type]; |
| 1546 | |
| 1547 | mutex_lock(&fw_mutex); |
| 1548 | |
| 1549 | if (fwe->loaded) { |
| 1550 | at76_dbg(DBG_FW, "re-using previously loaded fw"); |
| 1551 | goto exit; |
| 1552 | } |
| 1553 | |
| 1554 | at76_dbg(DBG_FW, "downloading firmware %s", fwe->fwname); |
| 1555 | ret = request_firmware(&fwe->fw, fwe->fwname, &udev->dev); |
| 1556 | if (ret < 0) { |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 1557 | dev_err(&udev->dev, "firmware %s not found!\n", |
| 1558 | fwe->fwname); |
| 1559 | dev_err(&udev->dev, |
| 1560 | "you may need to download the firmware from http://developer.berlios.de/projects/at76c503a/\n"); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1561 | goto exit; |
| 1562 | } |
| 1563 | |
| 1564 | at76_dbg(DBG_FW, "got it."); |
| 1565 | fwh = (struct at76_fw_header *)(fwe->fw->data); |
| 1566 | |
| 1567 | if (fwe->fw->size <= sizeof(*fwh)) { |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 1568 | dev_err(&udev->dev, |
| 1569 | "firmware is too short (0x%zx)\n", fwe->fw->size); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1570 | goto exit; |
| 1571 | } |
| 1572 | |
| 1573 | /* CRC currently not checked */ |
| 1574 | fwe->board_type = le32_to_cpu(fwh->board_type); |
| 1575 | if (fwe->board_type != board_type) { |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 1576 | dev_err(&udev->dev, |
| 1577 | "board type mismatch, requested %u, got %u\n", |
| 1578 | board_type, fwe->board_type); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1579 | goto exit; |
| 1580 | } |
| 1581 | |
| 1582 | fwe->fw_version.major = fwh->major; |
| 1583 | fwe->fw_version.minor = fwh->minor; |
| 1584 | fwe->fw_version.patch = fwh->patch; |
| 1585 | fwe->fw_version.build = fwh->build; |
| 1586 | |
| 1587 | str = (char *)fwh + le32_to_cpu(fwh->str_offset); |
| 1588 | fwe->intfw = (u8 *)fwh + le32_to_cpu(fwh->int_fw_offset); |
| 1589 | fwe->intfw_size = le32_to_cpu(fwh->int_fw_len); |
| 1590 | fwe->extfw = (u8 *)fwh + le32_to_cpu(fwh->ext_fw_offset); |
| 1591 | fwe->extfw_size = le32_to_cpu(fwh->ext_fw_len); |
| 1592 | |
| 1593 | fwe->loaded = 1; |
| 1594 | |
| 1595 | dev_printk(KERN_DEBUG, &udev->dev, |
| 1596 | "using firmware %s (version %d.%d.%d-%d)\n", |
| 1597 | fwe->fwname, fwh->major, fwh->minor, fwh->patch, fwh->build); |
| 1598 | |
| 1599 | at76_dbg(DBG_DEVSTART, "board %u, int %d:%d, ext %d:%d", board_type, |
| 1600 | le32_to_cpu(fwh->int_fw_offset), le32_to_cpu(fwh->int_fw_len), |
| 1601 | le32_to_cpu(fwh->ext_fw_offset), le32_to_cpu(fwh->ext_fw_len)); |
| 1602 | at76_dbg(DBG_DEVSTART, "firmware id %s", str); |
| 1603 | |
| 1604 | exit: |
| 1605 | mutex_unlock(&fw_mutex); |
| 1606 | |
| 1607 | if (fwe->loaded) |
| 1608 | return fwe; |
| 1609 | else |
| 1610 | return NULL; |
| 1611 | } |
| 1612 | |
Sebastian Smolorz | 41b4b28 | 2010-06-22 16:53:37 +0200 | [diff] [blame] | 1613 | static int at76_join(struct at76_priv *priv) |
| 1614 | { |
| 1615 | struct at76_req_join join; |
| 1616 | int ret; |
| 1617 | |
| 1618 | memset(&join, 0, sizeof(struct at76_req_join)); |
| 1619 | memcpy(join.essid, priv->essid, priv->essid_size); |
| 1620 | join.essid_size = priv->essid_size; |
| 1621 | memcpy(join.bssid, priv->bssid, ETH_ALEN); |
| 1622 | join.bss_type = INFRASTRUCTURE_MODE; |
| 1623 | join.channel = priv->channel; |
| 1624 | join.timeout = cpu_to_le16(2000); |
| 1625 | |
| 1626 | at76_dbg(DBG_MAC80211, "%s: sending CMD_JOIN", __func__); |
| 1627 | ret = at76_set_card_command(priv->udev, CMD_JOIN, &join, |
| 1628 | sizeof(struct at76_req_join)); |
| 1629 | |
| 1630 | if (ret < 0) { |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 1631 | wiphy_err(priv->hw->wiphy, "at76_set_card_command failed: %d\n", |
| 1632 | ret); |
Sebastian Smolorz | 41b4b28 | 2010-06-22 16:53:37 +0200 | [diff] [blame] | 1633 | return 0; |
| 1634 | } |
| 1635 | |
| 1636 | ret = at76_wait_completion(priv, CMD_JOIN); |
| 1637 | at76_dbg(DBG_MAC80211, "%s: CMD_JOIN returned: 0x%02x", __func__, ret); |
| 1638 | if (ret != CMD_STATUS_COMPLETE) { |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 1639 | wiphy_err(priv->hw->wiphy, "at76_wait_completion failed: %d\n", |
| 1640 | ret); |
Sebastian Smolorz | 41b4b28 | 2010-06-22 16:53:37 +0200 | [diff] [blame] | 1641 | return 0; |
| 1642 | } |
| 1643 | |
| 1644 | at76_set_pm_mode(priv); |
| 1645 | |
| 1646 | return 0; |
| 1647 | } |
| 1648 | |
Sebastian Smolorz | a185045 | 2010-06-22 16:55:17 +0200 | [diff] [blame] | 1649 | static void at76_work_join_bssid(struct work_struct *work) |
| 1650 | { |
| 1651 | struct at76_priv *priv = container_of(work, struct at76_priv, |
| 1652 | work_join_bssid); |
| 1653 | |
| 1654 | if (priv->device_unplugged) |
| 1655 | return; |
| 1656 | |
| 1657 | mutex_lock(&priv->mtx); |
| 1658 | |
| 1659 | if (is_valid_ether_addr(priv->bssid)) |
| 1660 | at76_join(priv); |
| 1661 | |
| 1662 | mutex_unlock(&priv->mtx); |
| 1663 | } |
| 1664 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1665 | static void at76_mac80211_tx_callback(struct urb *urb) |
| 1666 | { |
| 1667 | struct at76_priv *priv = urb->context; |
| 1668 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(priv->tx_skb); |
| 1669 | |
| 1670 | at76_dbg(DBG_MAC80211, "%s()", __func__); |
| 1671 | |
| 1672 | switch (urb->status) { |
| 1673 | case 0: |
| 1674 | /* success */ |
| 1675 | info->flags |= IEEE80211_TX_STAT_ACK; |
| 1676 | break; |
| 1677 | case -ENOENT: |
| 1678 | case -ECONNRESET: |
| 1679 | /* fail, urb has been unlinked */ |
| 1680 | /* FIXME: add error message */ |
| 1681 | break; |
| 1682 | default: |
| 1683 | at76_dbg(DBG_URB, "%s - nonzero tx status received: %d", |
| 1684 | __func__, urb->status); |
| 1685 | break; |
| 1686 | } |
| 1687 | |
| 1688 | memset(&info->status, 0, sizeof(info->status)); |
| 1689 | |
| 1690 | ieee80211_tx_status_irqsafe(priv->hw, priv->tx_skb); |
| 1691 | |
| 1692 | priv->tx_skb = NULL; |
| 1693 | |
| 1694 | ieee80211_wake_queues(priv->hw); |
| 1695 | } |
| 1696 | |
Thomas Huehn | 36323f8 | 2012-07-23 21:33:42 +0200 | [diff] [blame] | 1697 | static void at76_mac80211_tx(struct ieee80211_hw *hw, |
| 1698 | struct ieee80211_tx_control *control, |
| 1699 | struct sk_buff *skb) |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1700 | { |
| 1701 | struct at76_priv *priv = hw->priv; |
| 1702 | struct at76_tx_buffer *tx_buffer = priv->bulk_out_buffer; |
| 1703 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
Sebastian Smolorz | a185045 | 2010-06-22 16:55:17 +0200 | [diff] [blame] | 1704 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1705 | int padding, submit_len, ret; |
| 1706 | |
| 1707 | at76_dbg(DBG_MAC80211, "%s()", __func__); |
| 1708 | |
| 1709 | if (priv->tx_urb->status == -EINPROGRESS) { |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 1710 | wiphy_err(priv->hw->wiphy, |
| 1711 | "%s called while tx urb is pending\n", __func__); |
Johannes Berg | 7bb4568 | 2011-02-24 14:42:06 +0100 | [diff] [blame] | 1712 | dev_kfree_skb_any(skb); |
| 1713 | return; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1714 | } |
| 1715 | |
Sebastian Smolorz | a185045 | 2010-06-22 16:55:17 +0200 | [diff] [blame] | 1716 | /* The following code lines are important when the device is going to |
| 1717 | * authenticate with a new bssid. The driver must send CMD_JOIN before |
| 1718 | * an authentication frame is transmitted. For this to succeed, the |
| 1719 | * correct bssid of the AP must be known. As mac80211 does not inform |
| 1720 | * drivers about the bssid prior to the authentication process the |
| 1721 | * following workaround is necessary. If the TX frame is an |
| 1722 | * authentication frame extract the bssid and send the CMD_JOIN. */ |
| 1723 | if (mgmt->frame_control & cpu_to_le16(IEEE80211_STYPE_AUTH)) { |
Joe Perches | 2e42e47 | 2012-05-09 17:17:46 +0000 | [diff] [blame] | 1724 | if (!ether_addr_equal(priv->bssid, mgmt->bssid)) { |
Sebastian Smolorz | a185045 | 2010-06-22 16:55:17 +0200 | [diff] [blame] | 1725 | memcpy(priv->bssid, mgmt->bssid, ETH_ALEN); |
| 1726 | ieee80211_queue_work(hw, &priv->work_join_bssid); |
John W. Linville | 10889f1 | 2011-02-25 15:38:09 -0500 | [diff] [blame] | 1727 | dev_kfree_skb_any(skb); |
| 1728 | return; |
Sebastian Smolorz | a185045 | 2010-06-22 16:55:17 +0200 | [diff] [blame] | 1729 | } |
| 1730 | } |
| 1731 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1732 | ieee80211_stop_queues(hw); |
| 1733 | |
| 1734 | at76_ledtrig_tx_activity(); /* tell ledtrigger we send a packet */ |
| 1735 | |
| 1736 | WARN_ON(priv->tx_skb != NULL); |
| 1737 | |
| 1738 | priv->tx_skb = skb; |
| 1739 | padding = at76_calc_padding(skb->len); |
| 1740 | submit_len = AT76_TX_HDRLEN + skb->len + padding; |
| 1741 | |
| 1742 | /* setup 'Atmel' header */ |
| 1743 | memset(tx_buffer, 0, sizeof(*tx_buffer)); |
| 1744 | tx_buffer->padding = padding; |
| 1745 | tx_buffer->wlength = cpu_to_le16(skb->len); |
| 1746 | tx_buffer->tx_rate = ieee80211_get_tx_rate(hw, info)->hw_value; |
| 1747 | memset(tx_buffer->reserved, 0, sizeof(tx_buffer->reserved)); |
| 1748 | memcpy(tx_buffer->packet, skb->data, skb->len); |
| 1749 | |
| 1750 | at76_dbg(DBG_TX_DATA, "%s tx: wlen 0x%x pad 0x%x rate %d hdr", |
| 1751 | wiphy_name(priv->hw->wiphy), le16_to_cpu(tx_buffer->wlength), |
| 1752 | tx_buffer->padding, tx_buffer->tx_rate); |
| 1753 | |
| 1754 | /* send stuff */ |
| 1755 | at76_dbg_dump(DBG_TX_DATA_CONTENT, tx_buffer, submit_len, |
| 1756 | "%s(): tx_buffer %d bytes:", __func__, submit_len); |
| 1757 | usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, tx_buffer, |
| 1758 | submit_len, at76_mac80211_tx_callback, priv); |
| 1759 | ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC); |
| 1760 | if (ret) { |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 1761 | wiphy_err(priv->hw->wiphy, "error in tx submit urb: %d\n", ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1762 | if (ret == -EINVAL) |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 1763 | wiphy_err(priv->hw->wiphy, |
Joe Perches | 5db5584 | 2010-08-11 19:11:19 -0700 | [diff] [blame] | 1764 | "-EINVAL: tx urb %p hcpriv %p complete %p\n", |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 1765 | priv->tx_urb, |
| 1766 | priv->tx_urb->hcpriv, priv->tx_urb->complete); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1767 | } |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1768 | } |
| 1769 | |
| 1770 | static int at76_mac80211_start(struct ieee80211_hw *hw) |
| 1771 | { |
| 1772 | struct at76_priv *priv = hw->priv; |
| 1773 | int ret; |
| 1774 | |
| 1775 | at76_dbg(DBG_MAC80211, "%s()", __func__); |
| 1776 | |
| 1777 | mutex_lock(&priv->mtx); |
| 1778 | |
| 1779 | ret = at76_submit_rx_urb(priv); |
| 1780 | if (ret < 0) { |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 1781 | wiphy_err(priv->hw->wiphy, "open: submit_rx_urb failed: %d\n", |
| 1782 | ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1783 | goto error; |
| 1784 | } |
| 1785 | |
| 1786 | at76_startup_device(priv); |
| 1787 | |
| 1788 | at76_start_monitor(priv); |
| 1789 | |
| 1790 | error: |
| 1791 | mutex_unlock(&priv->mtx); |
| 1792 | |
| 1793 | return 0; |
| 1794 | } |
| 1795 | |
| 1796 | static void at76_mac80211_stop(struct ieee80211_hw *hw) |
| 1797 | { |
| 1798 | struct at76_priv *priv = hw->priv; |
| 1799 | |
| 1800 | at76_dbg(DBG_MAC80211, "%s()", __func__); |
| 1801 | |
Luis R. Rodriguez | 9ed21d3 | 2009-07-27 11:56:24 -0700 | [diff] [blame] | 1802 | cancel_delayed_work(&priv->dwork_hw_scan); |
Sebastian Smolorz | a185045 | 2010-06-22 16:55:17 +0200 | [diff] [blame] | 1803 | cancel_work_sync(&priv->work_join_bssid); |
Luis R. Rodriguez | ebc8ab1 | 2009-07-27 11:56:23 -0700 | [diff] [blame] | 1804 | cancel_work_sync(&priv->work_set_promisc); |
| 1805 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1806 | mutex_lock(&priv->mtx); |
| 1807 | |
| 1808 | if (!priv->device_unplugged) { |
| 1809 | /* We are called by "ifconfig ethX down", not because the |
| 1810 | * device is not available anymore. */ |
| 1811 | at76_set_radio(priv, 0); |
| 1812 | |
| 1813 | /* We unlink rx_urb because at76_open() re-submits it. |
| 1814 | * If unplugged, at76_delete_device() takes care of it. */ |
| 1815 | usb_kill_urb(priv->rx_urb); |
| 1816 | } |
| 1817 | |
| 1818 | mutex_unlock(&priv->mtx); |
| 1819 | } |
| 1820 | |
| 1821 | static int at76_add_interface(struct ieee80211_hw *hw, |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1822 | struct ieee80211_vif *vif) |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1823 | { |
| 1824 | struct at76_priv *priv = hw->priv; |
| 1825 | int ret = 0; |
| 1826 | |
| 1827 | at76_dbg(DBG_MAC80211, "%s()", __func__); |
| 1828 | |
| 1829 | mutex_lock(&priv->mtx); |
| 1830 | |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1831 | switch (vif->type) { |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1832 | case NL80211_IFTYPE_STATION: |
| 1833 | priv->iw_mode = IW_MODE_INFRA; |
| 1834 | break; |
| 1835 | default: |
| 1836 | ret = -EOPNOTSUPP; |
| 1837 | goto exit; |
| 1838 | } |
| 1839 | |
| 1840 | exit: |
| 1841 | mutex_unlock(&priv->mtx); |
| 1842 | |
| 1843 | return ret; |
| 1844 | } |
| 1845 | |
| 1846 | static void at76_remove_interface(struct ieee80211_hw *hw, |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 1847 | struct ieee80211_vif *vif) |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1848 | { |
| 1849 | at76_dbg(DBG_MAC80211, "%s()", __func__); |
| 1850 | } |
| 1851 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1852 | static void at76_dwork_hw_scan(struct work_struct *work) |
| 1853 | { |
| 1854 | struct at76_priv *priv = container_of(work, struct at76_priv, |
| 1855 | dwork_hw_scan.work); |
| 1856 | int ret; |
| 1857 | |
Jason Andryuk | deda862 | 2009-02-21 09:53:14 +0200 | [diff] [blame] | 1858 | if (priv->device_unplugged) |
| 1859 | return; |
| 1860 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1861 | mutex_lock(&priv->mtx); |
| 1862 | |
| 1863 | ret = at76_get_cmd_status(priv->udev, CMD_SCAN); |
| 1864 | at76_dbg(DBG_MAC80211, "%s: CMD_SCAN status 0x%02x", __func__, ret); |
| 1865 | |
| 1866 | /* FIXME: add maximum time for scan to complete */ |
| 1867 | |
| 1868 | if (ret != CMD_STATUS_COMPLETE) { |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 1869 | ieee80211_queue_delayed_work(priv->hw, &priv->dwork_hw_scan, |
| 1870 | SCAN_POLL_INTERVAL); |
John W. Linville | 21a4cc0 | 2009-05-28 11:39:02 +0200 | [diff] [blame] | 1871 | mutex_unlock(&priv->mtx); |
| 1872 | return; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1873 | } |
| 1874 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1875 | if (is_valid_ether_addr(priv->bssid)) |
| 1876 | at76_join(priv); |
| 1877 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1878 | mutex_unlock(&priv->mtx); |
John W. Linville | 21a4cc0 | 2009-05-28 11:39:02 +0200 | [diff] [blame] | 1879 | |
| 1880 | ieee80211_scan_completed(priv->hw, false); |
| 1881 | |
| 1882 | ieee80211_wake_queues(priv->hw); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1883 | } |
| 1884 | |
Jason Andryuk | 19e8bc7 | 2009-02-18 22:40:57 +0200 | [diff] [blame] | 1885 | static int at76_hw_scan(struct ieee80211_hw *hw, |
Johannes Berg | a060bbf | 2010-04-27 11:59:34 +0200 | [diff] [blame] | 1886 | struct ieee80211_vif *vif, |
Jason Andryuk | 19e8bc7 | 2009-02-18 22:40:57 +0200 | [diff] [blame] | 1887 | struct cfg80211_scan_request *req) |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1888 | { |
| 1889 | struct at76_priv *priv = hw->priv; |
| 1890 | struct at76_req_scan scan; |
Jason Andryuk | 19e8bc7 | 2009-02-18 22:40:57 +0200 | [diff] [blame] | 1891 | u8 *ssid = NULL; |
| 1892 | int ret, len = 0; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1893 | |
| 1894 | at76_dbg(DBG_MAC80211, "%s():", __func__); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1895 | |
Jason Andryuk | deda862 | 2009-02-21 09:53:14 +0200 | [diff] [blame] | 1896 | if (priv->device_unplugged) |
| 1897 | return 0; |
| 1898 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1899 | mutex_lock(&priv->mtx); |
| 1900 | |
| 1901 | ieee80211_stop_queues(hw); |
| 1902 | |
| 1903 | memset(&scan, 0, sizeof(struct at76_req_scan)); |
| 1904 | memset(scan.bssid, 0xFF, ETH_ALEN); |
Jason Andryuk | 19e8bc7 | 2009-02-18 22:40:57 +0200 | [diff] [blame] | 1905 | |
| 1906 | if (req->n_ssids) { |
| 1907 | scan.scan_type = SCAN_TYPE_ACTIVE; |
| 1908 | ssid = req->ssids[0].ssid; |
| 1909 | len = req->ssids[0].ssid_len; |
| 1910 | } else { |
| 1911 | scan.scan_type = SCAN_TYPE_PASSIVE; |
| 1912 | } |
| 1913 | |
| 1914 | if (len) { |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1915 | memcpy(scan.essid, ssid, len); |
| 1916 | scan.essid_size = len; |
| 1917 | } |
Jason Andryuk | 19e8bc7 | 2009-02-18 22:40:57 +0200 | [diff] [blame] | 1918 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1919 | scan.min_channel_time = cpu_to_le16(priv->scan_min_time); |
| 1920 | scan.max_channel_time = cpu_to_le16(priv->scan_max_time); |
| 1921 | scan.probe_delay = cpu_to_le16(priv->scan_min_time * 1000); |
| 1922 | scan.international_scan = 0; |
| 1923 | |
| 1924 | at76_dbg(DBG_MAC80211, "%s: sending CMD_SCAN", __func__); |
| 1925 | ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan)); |
| 1926 | |
| 1927 | if (ret < 0) { |
Greg Kroah-Hartman | 24c0328 | 2012-04-25 14:48:52 -0700 | [diff] [blame] | 1928 | wiphy_err(priv->hw->wiphy, "CMD_SCAN failed: %d\n", ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1929 | goto exit; |
| 1930 | } |
| 1931 | |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 1932 | ieee80211_queue_delayed_work(priv->hw, &priv->dwork_hw_scan, |
| 1933 | SCAN_POLL_INTERVAL); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1934 | |
| 1935 | exit: |
| 1936 | mutex_unlock(&priv->mtx); |
| 1937 | |
| 1938 | return 0; |
| 1939 | } |
| 1940 | |
| 1941 | static int at76_config(struct ieee80211_hw *hw, u32 changed) |
| 1942 | { |
| 1943 | struct at76_priv *priv = hw->priv; |
| 1944 | |
Johannes Berg | f424afa | 2009-08-17 16:18:07 +0200 | [diff] [blame] | 1945 | at76_dbg(DBG_MAC80211, "%s(): channel %d", |
| 1946 | __func__, hw->conf.channel->hw_value); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1947 | at76_dbg_dump(DBG_MAC80211, priv->bssid, ETH_ALEN, "bssid:"); |
| 1948 | |
| 1949 | mutex_lock(&priv->mtx); |
| 1950 | |
| 1951 | priv->channel = hw->conf.channel->hw_value; |
| 1952 | |
| 1953 | if (is_valid_ether_addr(priv->bssid)) |
| 1954 | at76_join(priv); |
| 1955 | else |
| 1956 | at76_start_monitor(priv); |
| 1957 | |
| 1958 | mutex_unlock(&priv->mtx); |
| 1959 | |
| 1960 | return 0; |
| 1961 | } |
| 1962 | |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 1963 | static void at76_bss_info_changed(struct ieee80211_hw *hw, |
| 1964 | struct ieee80211_vif *vif, |
| 1965 | struct ieee80211_bss_conf *conf, |
| 1966 | u32 changed) |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1967 | { |
| 1968 | struct at76_priv *priv = hw->priv; |
| 1969 | |
| 1970 | at76_dbg(DBG_MAC80211, "%s():", __func__); |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 1971 | |
| 1972 | if (!(changed & BSS_CHANGED_BSSID)) |
| 1973 | return; |
| 1974 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1975 | at76_dbg_dump(DBG_MAC80211, conf->bssid, ETH_ALEN, "bssid:"); |
| 1976 | |
| 1977 | mutex_lock(&priv->mtx); |
| 1978 | |
| 1979 | memcpy(priv->bssid, conf->bssid, ETH_ALEN); |
| 1980 | |
| 1981 | if (is_valid_ether_addr(priv->bssid)) |
| 1982 | /* mac80211 is joining a bss */ |
| 1983 | at76_join(priv); |
| 1984 | |
| 1985 | mutex_unlock(&priv->mtx); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1986 | } |
| 1987 | |
| 1988 | /* must be atomic */ |
| 1989 | static void at76_configure_filter(struct ieee80211_hw *hw, |
| 1990 | unsigned int changed_flags, |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 1991 | unsigned int *total_flags, u64 multicast) |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1992 | { |
| 1993 | struct at76_priv *priv = hw->priv; |
| 1994 | int flags; |
| 1995 | |
| 1996 | at76_dbg(DBG_MAC80211, "%s(): changed_flags=0x%08x " |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 1997 | "total_flags=0x%08x", |
| 1998 | __func__, changed_flags, *total_flags); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 1999 | |
| 2000 | flags = changed_flags & AT76_SUPPORTED_FILTERS; |
| 2001 | *total_flags = AT76_SUPPORTED_FILTERS; |
| 2002 | |
Jason Andryuk | deda862 | 2009-02-21 09:53:14 +0200 | [diff] [blame] | 2003 | /* Bail out after updating flags to prevent a WARN_ON in mac80211. */ |
| 2004 | if (priv->device_unplugged) |
| 2005 | return; |
| 2006 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2007 | /* FIXME: access to priv->promisc should be protected with |
| 2008 | * priv->mtx, but it's impossible because this function needs to be |
| 2009 | * atomic */ |
| 2010 | |
| 2011 | if (flags && !priv->promisc) { |
| 2012 | /* mac80211 wants us to enable promiscuous mode */ |
| 2013 | priv->promisc = 1; |
| 2014 | } else if (!flags && priv->promisc) { |
| 2015 | /* we need to disable promiscuous mode */ |
| 2016 | priv->promisc = 0; |
| 2017 | } else |
| 2018 | return; |
| 2019 | |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 2020 | ieee80211_queue_work(hw, &priv->work_set_promisc); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2021 | } |
| 2022 | |
| 2023 | static int at76_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
| 2024 | struct ieee80211_vif *vif, struct ieee80211_sta *sta, |
| 2025 | struct ieee80211_key_conf *key) |
| 2026 | { |
| 2027 | struct at76_priv *priv = hw->priv; |
| 2028 | |
| 2029 | int i; |
| 2030 | |
Johannes Berg | 97359d1 | 2010-08-10 09:46:38 +0200 | [diff] [blame] | 2031 | at76_dbg(DBG_MAC80211, "%s(): cmd %d key->cipher %d key->keyidx %d " |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2032 | "key->keylen %d", |
Johannes Berg | 97359d1 | 2010-08-10 09:46:38 +0200 | [diff] [blame] | 2033 | __func__, cmd, key->cipher, key->keyidx, key->keylen); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2034 | |
Johannes Berg | 97359d1 | 2010-08-10 09:46:38 +0200 | [diff] [blame] | 2035 | if ((key->cipher != WLAN_CIPHER_SUITE_WEP40) && |
| 2036 | (key->cipher != WLAN_CIPHER_SUITE_WEP104)) |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2037 | return -EOPNOTSUPP; |
| 2038 | |
| 2039 | key->hw_key_idx = key->keyidx; |
| 2040 | |
| 2041 | mutex_lock(&priv->mtx); |
| 2042 | |
| 2043 | switch (cmd) { |
| 2044 | case SET_KEY: |
| 2045 | memcpy(priv->wep_keys[key->keyidx], key->key, key->keylen); |
| 2046 | priv->wep_keys_len[key->keyidx] = key->keylen; |
| 2047 | |
| 2048 | /* FIXME: find out how to do this properly */ |
| 2049 | priv->wep_key_id = key->keyidx; |
| 2050 | |
| 2051 | break; |
| 2052 | case DISABLE_KEY: |
| 2053 | default: |
| 2054 | priv->wep_keys_len[key->keyidx] = 0; |
| 2055 | break; |
| 2056 | } |
| 2057 | |
| 2058 | priv->wep_enabled = 0; |
| 2059 | |
| 2060 | for (i = 0; i < WEP_KEYS; i++) { |
| 2061 | if (priv->wep_keys_len[i] != 0) |
| 2062 | priv->wep_enabled = 1; |
| 2063 | } |
| 2064 | |
| 2065 | at76_startup_device(priv); |
| 2066 | |
| 2067 | mutex_unlock(&priv->mtx); |
| 2068 | |
| 2069 | return 0; |
| 2070 | } |
| 2071 | |
| 2072 | static const struct ieee80211_ops at76_ops = { |
| 2073 | .tx = at76_mac80211_tx, |
| 2074 | .add_interface = at76_add_interface, |
| 2075 | .remove_interface = at76_remove_interface, |
| 2076 | .config = at76_config, |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 2077 | .bss_info_changed = at76_bss_info_changed, |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2078 | .configure_filter = at76_configure_filter, |
| 2079 | .start = at76_mac80211_start, |
| 2080 | .stop = at76_mac80211_stop, |
| 2081 | .hw_scan = at76_hw_scan, |
| 2082 | .set_key = at76_set_key, |
| 2083 | }; |
| 2084 | |
| 2085 | /* Allocate network device and initialize private data */ |
| 2086 | static struct at76_priv *at76_alloc_new_device(struct usb_device *udev) |
| 2087 | { |
| 2088 | struct ieee80211_hw *hw; |
| 2089 | struct at76_priv *priv; |
| 2090 | |
| 2091 | hw = ieee80211_alloc_hw(sizeof(struct at76_priv), &at76_ops); |
| 2092 | if (!hw) { |
| 2093 | printk(KERN_ERR DRIVER_NAME ": could not register" |
| 2094 | " ieee80211_hw\n"); |
| 2095 | return NULL; |
| 2096 | } |
| 2097 | |
| 2098 | priv = hw->priv; |
| 2099 | priv->hw = hw; |
| 2100 | |
| 2101 | priv->udev = udev; |
| 2102 | |
| 2103 | mutex_init(&priv->mtx); |
| 2104 | INIT_WORK(&priv->work_set_promisc, at76_work_set_promisc); |
| 2105 | INIT_WORK(&priv->work_submit_rx, at76_work_submit_rx); |
Sebastian Smolorz | a185045 | 2010-06-22 16:55:17 +0200 | [diff] [blame] | 2106 | INIT_WORK(&priv->work_join_bssid, at76_work_join_bssid); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2107 | INIT_DELAYED_WORK(&priv->dwork_hw_scan, at76_dwork_hw_scan); |
| 2108 | |
Jason Andryuk | deda862 | 2009-02-21 09:53:14 +0200 | [diff] [blame] | 2109 | tasklet_init(&priv->rx_tasklet, at76_rx_tasklet, 0); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2110 | |
| 2111 | priv->pm_mode = AT76_PM_OFF; |
| 2112 | priv->pm_period = 0; |
| 2113 | |
| 2114 | /* unit us */ |
| 2115 | priv->hw->channel_change_time = 100000; |
| 2116 | |
| 2117 | return priv; |
| 2118 | } |
| 2119 | |
| 2120 | static int at76_alloc_urbs(struct at76_priv *priv, |
| 2121 | struct usb_interface *interface) |
| 2122 | { |
| 2123 | struct usb_endpoint_descriptor *endpoint, *ep_in, *ep_out; |
| 2124 | int i; |
| 2125 | int buffer_size; |
| 2126 | struct usb_host_interface *iface_desc; |
| 2127 | |
| 2128 | at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__); |
| 2129 | |
| 2130 | at76_dbg(DBG_URB, "%s: NumEndpoints %d ", __func__, |
| 2131 | interface->altsetting[0].desc.bNumEndpoints); |
| 2132 | |
| 2133 | ep_in = NULL; |
| 2134 | ep_out = NULL; |
| 2135 | iface_desc = interface->cur_altsetting; |
| 2136 | for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { |
| 2137 | endpoint = &iface_desc->endpoint[i].desc; |
| 2138 | |
| 2139 | at76_dbg(DBG_URB, "%s: %d. endpoint: addr 0x%x attr 0x%x", |
| 2140 | __func__, i, endpoint->bEndpointAddress, |
| 2141 | endpoint->bmAttributes); |
| 2142 | |
| 2143 | if (!ep_in && usb_endpoint_is_bulk_in(endpoint)) |
| 2144 | ep_in = endpoint; |
| 2145 | |
| 2146 | if (!ep_out && usb_endpoint_is_bulk_out(endpoint)) |
| 2147 | ep_out = endpoint; |
| 2148 | } |
| 2149 | |
| 2150 | if (!ep_in || !ep_out) { |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 2151 | dev_err(&interface->dev, "bulk endpoints missing\n"); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2152 | return -ENXIO; |
| 2153 | } |
| 2154 | |
| 2155 | priv->rx_pipe = usb_rcvbulkpipe(priv->udev, ep_in->bEndpointAddress); |
| 2156 | priv->tx_pipe = usb_sndbulkpipe(priv->udev, ep_out->bEndpointAddress); |
| 2157 | |
| 2158 | priv->rx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 2159 | priv->tx_urb = usb_alloc_urb(0, GFP_KERNEL); |
| 2160 | if (!priv->rx_urb || !priv->tx_urb) { |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 2161 | dev_err(&interface->dev, "cannot allocate URB\n"); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2162 | return -ENOMEM; |
| 2163 | } |
| 2164 | |
| 2165 | buffer_size = sizeof(struct at76_tx_buffer) + MAX_PADDING_SIZE; |
| 2166 | priv->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL); |
| 2167 | if (!priv->bulk_out_buffer) { |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 2168 | dev_err(&interface->dev, "cannot allocate output buffer\n"); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2169 | return -ENOMEM; |
| 2170 | } |
| 2171 | |
| 2172 | at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__); |
| 2173 | |
| 2174 | return 0; |
| 2175 | } |
| 2176 | |
| 2177 | static struct ieee80211_rate at76_rates[] = { |
| 2178 | { .bitrate = 10, .hw_value = TX_RATE_1MBIT, }, |
| 2179 | { .bitrate = 20, .hw_value = TX_RATE_2MBIT, }, |
| 2180 | { .bitrate = 55, .hw_value = TX_RATE_5_5MBIT, }, |
| 2181 | { .bitrate = 110, .hw_value = TX_RATE_11MBIT, }, |
| 2182 | }; |
| 2183 | |
| 2184 | static struct ieee80211_channel at76_channels[] = { |
| 2185 | { .center_freq = 2412, .hw_value = 1 }, |
| 2186 | { .center_freq = 2417, .hw_value = 2 }, |
| 2187 | { .center_freq = 2422, .hw_value = 3 }, |
| 2188 | { .center_freq = 2427, .hw_value = 4 }, |
| 2189 | { .center_freq = 2432, .hw_value = 5 }, |
| 2190 | { .center_freq = 2437, .hw_value = 6 }, |
| 2191 | { .center_freq = 2442, .hw_value = 7 }, |
| 2192 | { .center_freq = 2447, .hw_value = 8 }, |
| 2193 | { .center_freq = 2452, .hw_value = 9 }, |
| 2194 | { .center_freq = 2457, .hw_value = 10 }, |
| 2195 | { .center_freq = 2462, .hw_value = 11 }, |
| 2196 | { .center_freq = 2467, .hw_value = 12 }, |
| 2197 | { .center_freq = 2472, .hw_value = 13 }, |
| 2198 | { .center_freq = 2484, .hw_value = 14 } |
| 2199 | }; |
| 2200 | |
| 2201 | static struct ieee80211_supported_band at76_supported_band = { |
| 2202 | .channels = at76_channels, |
| 2203 | .n_channels = ARRAY_SIZE(at76_channels), |
| 2204 | .bitrates = at76_rates, |
| 2205 | .n_bitrates = ARRAY_SIZE(at76_rates), |
| 2206 | }; |
| 2207 | |
| 2208 | /* Register network device and initialize the hardware */ |
| 2209 | static int at76_init_new_device(struct at76_priv *priv, |
| 2210 | struct usb_interface *interface) |
| 2211 | { |
Kalle Valo | fe348cb | 2009-09-24 11:02:51 -0700 | [diff] [blame] | 2212 | struct wiphy *wiphy; |
| 2213 | size_t len; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2214 | int ret; |
| 2215 | |
| 2216 | /* set up the endpoint information */ |
| 2217 | /* check out the endpoints */ |
| 2218 | |
| 2219 | at76_dbg(DBG_DEVSTART, "USB interface: %d endpoints", |
| 2220 | interface->cur_altsetting->desc.bNumEndpoints); |
| 2221 | |
| 2222 | ret = at76_alloc_urbs(priv, interface); |
| 2223 | if (ret < 0) |
| 2224 | goto exit; |
| 2225 | |
| 2226 | /* MAC address */ |
| 2227 | ret = at76_get_hw_config(priv); |
| 2228 | if (ret < 0) { |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 2229 | dev_err(&interface->dev, "cannot get MAC address\n"); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2230 | goto exit; |
| 2231 | } |
| 2232 | |
| 2233 | priv->domain = at76_get_reg_domain(priv->regulatory_domain); |
| 2234 | |
| 2235 | priv->channel = DEF_CHANNEL; |
| 2236 | priv->iw_mode = IW_MODE_INFRA; |
| 2237 | priv->rts_threshold = DEF_RTS_THRESHOLD; |
| 2238 | priv->frag_threshold = DEF_FRAG_THRESHOLD; |
| 2239 | priv->short_retry_limit = DEF_SHORT_RETRY_LIMIT; |
| 2240 | priv->txrate = TX_RATE_AUTO; |
| 2241 | priv->preamble_type = PREAMBLE_TYPE_LONG; |
| 2242 | priv->beacon_period = 100; |
| 2243 | priv->auth_mode = WLAN_AUTH_OPEN; |
| 2244 | priv->scan_min_time = DEF_SCAN_MIN_TIME; |
| 2245 | priv->scan_max_time = DEF_SCAN_MAX_TIME; |
| 2246 | priv->scan_mode = SCAN_TYPE_ACTIVE; |
Jason Andryuk | deda862 | 2009-02-21 09:53:14 +0200 | [diff] [blame] | 2247 | priv->device_unplugged = 0; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2248 | |
| 2249 | /* mac80211 initialisation */ |
Kalle Valo | fe348cb | 2009-09-24 11:02:51 -0700 | [diff] [blame] | 2250 | wiphy = priv->hw->wiphy; |
Jason Andryuk | 19e8bc7 | 2009-02-18 22:40:57 +0200 | [diff] [blame] | 2251 | priv->hw->wiphy->max_scan_ssids = 1; |
Johannes Berg | 18a8365 | 2009-03-31 12:12:05 +0200 | [diff] [blame] | 2252 | priv->hw->wiphy->max_scan_ie_len = 0; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2253 | priv->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); |
| 2254 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &at76_supported_band; |
| 2255 | priv->hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | |
| 2256 | IEEE80211_HW_SIGNAL_UNSPEC; |
Jason Andryuk | 19e8bc7 | 2009-02-18 22:40:57 +0200 | [diff] [blame] | 2257 | priv->hw->max_signal = 100; |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2258 | |
| 2259 | SET_IEEE80211_DEV(priv->hw, &interface->dev); |
| 2260 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); |
| 2261 | |
Kalle Valo | fe348cb | 2009-09-24 11:02:51 -0700 | [diff] [blame] | 2262 | len = sizeof(wiphy->fw_version); |
| 2263 | snprintf(wiphy->fw_version, len, "%d.%d.%d-%d", |
| 2264 | priv->fw_version.major, priv->fw_version.minor, |
| 2265 | priv->fw_version.patch, priv->fw_version.build); |
| 2266 | |
| 2267 | wiphy->hw_version = priv->board_type; |
| 2268 | |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2269 | ret = ieee80211_register_hw(priv->hw); |
| 2270 | if (ret) { |
| 2271 | printk(KERN_ERR "cannot register mac80211 hw (status %d)!\n", |
| 2272 | ret); |
| 2273 | goto exit; |
| 2274 | } |
| 2275 | |
| 2276 | priv->mac80211_registered = 1; |
| 2277 | |
Joe Perches | 5db5584 | 2010-08-11 19:11:19 -0700 | [diff] [blame] | 2278 | wiphy_info(priv->hw->wiphy, "USB %s, MAC %pM, firmware %d.%d.%d-%d\n", |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 2279 | dev_name(&interface->dev), priv->mac_addr, |
| 2280 | priv->fw_version.major, priv->fw_version.minor, |
| 2281 | priv->fw_version.patch, priv->fw_version.build); |
| 2282 | wiphy_info(priv->hw->wiphy, "regulatory domain 0x%02x: %s\n", |
| 2283 | priv->regulatory_domain, priv->domain->name); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2284 | |
| 2285 | exit: |
| 2286 | return ret; |
| 2287 | } |
| 2288 | |
| 2289 | static void at76_delete_device(struct at76_priv *priv) |
| 2290 | { |
| 2291 | at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__); |
| 2292 | |
| 2293 | /* The device is gone, don't bother turning it off */ |
| 2294 | priv->device_unplugged = 1; |
| 2295 | |
Jason Andryuk | deda862 | 2009-02-21 09:53:14 +0200 | [diff] [blame] | 2296 | tasklet_kill(&priv->rx_tasklet); |
| 2297 | |
Luis R. Rodriguez | 64344d7 | 2009-07-29 14:20:41 -0700 | [diff] [blame] | 2298 | if (priv->mac80211_registered) |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2299 | ieee80211_unregister_hw(priv->hw); |
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 | |
Wei Yongjun | 54cb228 | 2009-04-08 22:16:38 +0000 | [diff] [blame] | 2316 | kfree_skb(priv->rx_skb); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2317 | |
| 2318 | usb_put_dev(priv->udev); |
| 2319 | |
| 2320 | at76_dbg(DBG_PROC_ENTRY, "%s: before freeing priv/ieee80211_hw", |
| 2321 | __func__); |
| 2322 | ieee80211_free_hw(priv->hw); |
| 2323 | |
| 2324 | at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__); |
| 2325 | } |
| 2326 | |
| 2327 | static int at76_probe(struct usb_interface *interface, |
| 2328 | const struct usb_device_id *id) |
| 2329 | { |
| 2330 | int ret; |
| 2331 | struct at76_priv *priv; |
| 2332 | struct fwentry *fwe; |
| 2333 | struct usb_device *udev; |
| 2334 | int op_mode; |
| 2335 | int need_ext_fw = 0; |
| 2336 | struct mib_fw_version fwv; |
| 2337 | int board_type = (int)id->driver_info; |
| 2338 | |
| 2339 | udev = usb_get_dev(interface_to_usbdev(interface)); |
| 2340 | |
| 2341 | /* Load firmware into kernel memory */ |
| 2342 | fwe = at76_load_firmware(udev, board_type); |
| 2343 | if (!fwe) { |
| 2344 | ret = -ENOENT; |
| 2345 | goto error; |
| 2346 | } |
| 2347 | |
| 2348 | op_mode = at76_get_op_mode(udev); |
| 2349 | |
| 2350 | at76_dbg(DBG_DEVSTART, "opmode %d", op_mode); |
| 2351 | |
| 2352 | /* we get OPMODE_NONE with 2.4.23, SMC2662W-AR ??? |
| 2353 | we get 204 with 2.4.23, Fiberline FL-WL240u (505A+RFMD2958) ??? */ |
| 2354 | |
| 2355 | if (op_mode == OPMODE_HW_CONFIG_MODE) { |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 2356 | dev_err(&interface->dev, |
| 2357 | "cannot handle a device in HW_CONFIG_MODE\n"); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2358 | ret = -EBUSY; |
| 2359 | goto error; |
| 2360 | } |
| 2361 | |
| 2362 | if (op_mode != OPMODE_NORMAL_NIC_WITH_FLASH |
| 2363 | && op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) { |
| 2364 | /* download internal firmware part */ |
| 2365 | dev_printk(KERN_DEBUG, &interface->dev, |
| 2366 | "downloading internal firmware\n"); |
| 2367 | ret = at76_load_internal_fw(udev, fwe); |
| 2368 | if (ret < 0) { |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 2369 | dev_err(&interface->dev, |
| 2370 | "error %d downloading internal firmware\n", |
| 2371 | ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2372 | goto error; |
| 2373 | } |
| 2374 | usb_put_dev(udev); |
| 2375 | return ret; |
| 2376 | } |
| 2377 | |
| 2378 | /* Internal firmware already inside the device. Get firmware |
| 2379 | * version to test if external firmware is loaded. |
| 2380 | * This works only for newer firmware, e.g. the Intersil 0.90.x |
| 2381 | * says "control timeout on ep0in" and subsequent |
| 2382 | * at76_get_op_mode() fail too :-( */ |
| 2383 | |
| 2384 | /* if version >= 0.100.x.y or device with built-in flash we can |
| 2385 | * query the device for the fw version */ |
| 2386 | if ((fwe->fw_version.major > 0 || fwe->fw_version.minor >= 100) |
| 2387 | || (op_mode == OPMODE_NORMAL_NIC_WITH_FLASH)) { |
| 2388 | ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv)); |
| 2389 | if (ret < 0 || (fwv.major | fwv.minor) == 0) |
| 2390 | need_ext_fw = 1; |
| 2391 | } else |
| 2392 | /* No way to check firmware version, reload to be sure */ |
| 2393 | need_ext_fw = 1; |
| 2394 | |
| 2395 | if (need_ext_fw) { |
| 2396 | dev_printk(KERN_DEBUG, &interface->dev, |
| 2397 | "downloading external firmware\n"); |
| 2398 | |
| 2399 | ret = at76_load_external_fw(udev, fwe); |
| 2400 | if (ret) |
| 2401 | goto error; |
| 2402 | |
| 2403 | /* Re-check firmware version */ |
| 2404 | ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv)); |
| 2405 | if (ret < 0) { |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 2406 | dev_err(&interface->dev, |
| 2407 | "error %d getting firmware version\n", ret); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2408 | goto error; |
| 2409 | } |
| 2410 | } |
| 2411 | |
| 2412 | priv = at76_alloc_new_device(udev); |
| 2413 | if (!priv) { |
| 2414 | ret = -ENOMEM; |
| 2415 | goto error; |
| 2416 | } |
| 2417 | |
| 2418 | usb_set_intfdata(interface, priv); |
| 2419 | |
| 2420 | memcpy(&priv->fw_version, &fwv, sizeof(struct mib_fw_version)); |
| 2421 | priv->board_type = board_type; |
| 2422 | |
| 2423 | ret = at76_init_new_device(priv, interface); |
| 2424 | if (ret < 0) |
| 2425 | at76_delete_device(priv); |
| 2426 | |
| 2427 | return ret; |
| 2428 | |
| 2429 | error: |
| 2430 | usb_put_dev(udev); |
| 2431 | return ret; |
| 2432 | } |
| 2433 | |
| 2434 | static void at76_disconnect(struct usb_interface *interface) |
| 2435 | { |
| 2436 | struct at76_priv *priv; |
| 2437 | |
| 2438 | priv = usb_get_intfdata(interface); |
| 2439 | usb_set_intfdata(interface, NULL); |
| 2440 | |
| 2441 | /* Disconnect after loading internal firmware */ |
| 2442 | if (!priv) |
| 2443 | return; |
| 2444 | |
Joe Perches | c96c31e | 2010-07-26 14:39:58 -0700 | [diff] [blame] | 2445 | wiphy_info(priv->hw->wiphy, "disconnecting\n"); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2446 | at76_delete_device(priv); |
Joe Perches | 6a4b09f | 2012-10-28 01:05:47 -0700 | [diff] [blame^] | 2447 | dev_info(&interface->dev, "disconnected\n"); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2448 | } |
| 2449 | |
| 2450 | /* Structure for registering this driver with the USB subsystem */ |
| 2451 | static struct usb_driver at76_driver = { |
| 2452 | .name = DRIVER_NAME, |
| 2453 | .probe = at76_probe, |
| 2454 | .disconnect = at76_disconnect, |
| 2455 | .id_table = dev_table, |
Sarah Sharp | e1f12eb | 2012-04-23 10:08:51 -0700 | [diff] [blame] | 2456 | .disable_hub_initiated_lpm = 1, |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 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); |
Jesper Juhl | c987ce9 | 2012-04-09 22:50:47 +0200 | [diff] [blame] | 2483 | for (i = 0; i < ARRAY_SIZE(firmwares); i++) |
| 2484 | release_firmware(firmwares[i].fw); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2485 | led_trigger_unregister_simple(ledtrig_tx); |
| 2486 | } |
| 2487 | |
Jason Andryuk | 2ce4f9d | 2009-02-18 22:41:04 +0200 | [diff] [blame] | 2488 | module_param_named(debug, at76_debug, uint, 0600); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2489 | MODULE_PARM_DESC(debug, "Debugging level"); |
| 2490 | |
| 2491 | module_init(at76_mod_init); |
| 2492 | module_exit(at76_mod_exit); |
| 2493 | |
| 2494 | MODULE_AUTHOR("Oliver Kurth <oku@masqmail.cx>"); |
| 2495 | MODULE_AUTHOR("Joerg Albert <joerg.albert@gmx.de>"); |
| 2496 | MODULE_AUTHOR("Alex <alex@foogod.com>"); |
| 2497 | MODULE_AUTHOR("Nick Jones"); |
| 2498 | MODULE_AUTHOR("Balint Seeber <n0_5p4m_p13453@hotmail.com>"); |
| 2499 | MODULE_AUTHOR("Pavel Roskin <proski@gnu.org>"); |
| 2500 | MODULE_AUTHOR("Guido Guenther <agx@sigxcpu.org>"); |
| 2501 | MODULE_AUTHOR("Kalle Valo <kalle.valo@iki.fi>"); |
Sebastian Smolorz | a185045 | 2010-06-22 16:55:17 +0200 | [diff] [blame] | 2502 | MODULE_AUTHOR("Sebastian Smolorz <sesmo@gmx.net>"); |
Kalle Valo | 1264b95 | 2009-02-07 09:27:10 +0200 | [diff] [blame] | 2503 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 2504 | MODULE_LICENSE("GPL"); |