Commit | Line | Data |
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99e06e37 PR |
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 | * | |
10 | * This program is free software; you can redistribute it and/or | |
11 | * modify it under the terms of the GNU General Public License as | |
12 | * published by the Free Software Foundation; either version 2 of | |
13 | * the License, or (at your option) any later version. | |
14 | * | |
15 | * This file is part of the Berlios driver for WLAN USB devices based on the | |
16 | * Atmel AT76C503A/505/505A. | |
17 | * | |
18 | * Some iw_handler code was taken from airo.c, (C) 1999 Benjamin Reed | |
19 | */ | |
20 | ||
21 | #include <linux/init.h> | |
22 | #include <linux/kernel.h> | |
23 | #include <linux/sched.h> | |
24 | #include <linux/errno.h> | |
25 | #include <linux/slab.h> | |
26 | #include <linux/module.h> | |
27 | #include <linux/spinlock.h> | |
28 | #include <linux/list.h> | |
29 | #include <linux/usb.h> | |
30 | #include <linux/netdevice.h> | |
31 | #include <linux/if_arp.h> | |
32 | #include <linux/etherdevice.h> | |
33 | #include <linux/ethtool.h> | |
34 | #include <linux/wireless.h> | |
35 | #include <net/iw_handler.h> | |
36 | #include <net/ieee80211_radiotap.h> | |
37 | #include <linux/firmware.h> | |
38 | #include <linux/leds.h> | |
f494b663 | 39 | #include <linux/ieee80211.h> |
99e06e37 PR |
40 | |
41 | #include "at76_usb.h" | |
42 | ||
43 | /* Version information */ | |
44 | #define DRIVER_NAME "at76_usb" | |
45 | #define DRIVER_VERSION "0.17" | |
46 | #define DRIVER_DESC "Atmel at76x USB Wireless LAN Driver" | |
47 | ||
48 | /* at76_debug bits */ | |
49 | #define DBG_PROGRESS 0x00000001 /* authentication/accociation */ | |
50 | #define DBG_BSS_TABLE 0x00000002 /* show BSS table after scans */ | |
51 | #define DBG_IOCTL 0x00000004 /* ioctl calls / settings */ | |
52 | #define DBG_MAC_STATE 0x00000008 /* MAC state transitions */ | |
53 | #define DBG_TX_DATA 0x00000010 /* tx header */ | |
54 | #define DBG_TX_DATA_CONTENT 0x00000020 /* tx content */ | |
55 | #define DBG_TX_MGMT 0x00000040 /* tx management */ | |
56 | #define DBG_RX_DATA 0x00000080 /* rx data header */ | |
57 | #define DBG_RX_DATA_CONTENT 0x00000100 /* rx data content */ | |
58 | #define DBG_RX_MGMT 0x00000200 /* rx mgmt frame headers */ | |
59 | #define DBG_RX_BEACON 0x00000400 /* rx beacon */ | |
60 | #define DBG_RX_CTRL 0x00000800 /* rx control */ | |
61 | #define DBG_RX_MGMT_CONTENT 0x00001000 /* rx mgmt content */ | |
62 | #define DBG_RX_FRAGS 0x00002000 /* rx data fragment handling */ | |
63 | #define DBG_DEVSTART 0x00004000 /* fw download, device start */ | |
64 | #define DBG_URB 0x00008000 /* rx urb status, ... */ | |
65 | #define DBG_RX_ATMEL_HDR 0x00010000 /* Atmel-specific Rx headers */ | |
66 | #define DBG_PROC_ENTRY 0x00020000 /* procedure entries/exits */ | |
67 | #define DBG_PM 0x00040000 /* power management settings */ | |
68 | #define DBG_BSS_MATCH 0x00080000 /* BSS match failures */ | |
69 | #define DBG_PARAMS 0x00100000 /* show configured parameters */ | |
70 | #define DBG_WAIT_COMPLETE 0x00200000 /* command completion */ | |
71 | #define DBG_RX_FRAGS_SKB 0x00400000 /* skb header of Rx fragments */ | |
72 | #define DBG_BSS_TABLE_RM 0x00800000 /* purging bss table entries */ | |
73 | #define DBG_MONITOR_MODE 0x01000000 /* monitor mode */ | |
74 | #define DBG_MIB 0x02000000 /* dump all MIBs on startup */ | |
75 | #define DBG_MGMT_TIMER 0x04000000 /* dump mgmt_timer ops */ | |
76 | #define DBG_WE_EVENTS 0x08000000 /* dump wireless events */ | |
77 | #define DBG_FW 0x10000000 /* firmware download */ | |
78 | #define DBG_DFU 0x20000000 /* device firmware upgrade */ | |
79 | ||
80 | #define DBG_DEFAULTS 0 | |
81 | ||
82 | /* Use our own dbg macro */ | |
83 | #define at76_dbg(bits, format, arg...) \ | |
89cb7e7f GKH |
84 | do { \ |
85 | if (at76_debug & (bits)) \ | |
02227c28 | 86 | printk(KERN_DEBUG DRIVER_NAME ": " format "\n" , ## arg); \ |
89cb7e7f | 87 | } while (0) |
02227c28 | 88 | |
99e06e37 PR |
89 | static int at76_debug = DBG_DEFAULTS; |
90 | ||
91 | /* Protect against concurrent firmware loading and parsing */ | |
92 | static struct mutex fw_mutex; | |
93 | ||
94 | static struct fwentry firmwares[] = { | |
89cb7e7f GKH |
95 | [0] = {""}, |
96 | [BOARD_503_ISL3861] = {"atmel_at76c503-i3861.bin"}, | |
97 | [BOARD_503_ISL3863] = {"atmel_at76c503-i3863.bin"}, | |
98 | [BOARD_503] = {"atmel_at76c503-rfmd.bin"}, | |
99 | [BOARD_503_ACC] = {"atmel_at76c503-rfmd-acc.bin"}, | |
100 | [BOARD_505] = {"atmel_at76c505-rfmd.bin"}, | |
101 | [BOARD_505_2958] = {"atmel_at76c505-rfmd2958.bin"}, | |
102 | [BOARD_505A] = {"atmel_at76c505a-rfmd2958.bin"}, | |
103 | [BOARD_505AMX] = {"atmel_at76c505amx-rfmd.bin"}, | |
99e06e37 PR |
104 | }; |
105 | ||
106 | #define USB_DEVICE_DATA(__ops) .driver_info = (kernel_ulong_t)(__ops) | |
107 | ||
108 | static struct usb_device_id dev_table[] = { | |
109 | /* | |
110 | * at76c503-i3861 | |
111 | */ | |
112 | /* Generic AT76C503/3861 device */ | |
89cb7e7f | 113 | {USB_DEVICE(0x03eb, 0x7603), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
99e06e37 | 114 | /* Linksys WUSB11 v2.1/v2.6 */ |
89cb7e7f | 115 | {USB_DEVICE(0x066b, 0x2211), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
99e06e37 | 116 | /* Netgear MA101 rev. A */ |
89cb7e7f | 117 | {USB_DEVICE(0x0864, 0x4100), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
99e06e37 | 118 | /* Tekram U300C / Allnet ALL0193 */ |
89cb7e7f | 119 | {USB_DEVICE(0x0b3b, 0x1612), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
99e06e37 | 120 | /* HP HN210W J7801A */ |
89cb7e7f | 121 | {USB_DEVICE(0x03f0, 0x011c), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
99e06e37 | 122 | /* Sitecom/Z-Com/Zyxel M4Y-750 */ |
89cb7e7f | 123 | {USB_DEVICE(0x0cde, 0x0001), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
99e06e37 | 124 | /* Dynalink/Askey WLL013 (intersil) */ |
89cb7e7f | 125 | {USB_DEVICE(0x069a, 0x0320), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
99e06e37 | 126 | /* EZ connect 11Mpbs Wireless USB Adapter SMC2662W v1 */ |
89cb7e7f | 127 | {USB_DEVICE(0x0d5c, 0xa001), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
99e06e37 | 128 | /* BenQ AWL300 */ |
89cb7e7f | 129 | {USB_DEVICE(0x04a5, 0x9000), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
99e06e37 | 130 | /* Addtron AWU-120, Compex WLU11 */ |
89cb7e7f | 131 | {USB_DEVICE(0x05dd, 0xff31), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
99e06e37 | 132 | /* Intel AP310 AnyPoint II USB */ |
89cb7e7f | 133 | {USB_DEVICE(0x8086, 0x0200), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
99e06e37 | 134 | /* Dynalink L11U */ |
89cb7e7f | 135 | {USB_DEVICE(0x0d8e, 0x7100), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
99e06e37 | 136 | /* Arescom WL-210, FCC id 07J-GL2411USB */ |
89cb7e7f | 137 | {USB_DEVICE(0x0d8e, 0x7110), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
99e06e37 | 138 | /* I-O DATA WN-B11/USB */ |
89cb7e7f | 139 | {USB_DEVICE(0x04bb, 0x0919), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
99e06e37 | 140 | /* BT Voyager 1010 */ |
89cb7e7f | 141 | {USB_DEVICE(0x069a, 0x0821), USB_DEVICE_DATA(BOARD_503_ISL3861)}, |
99e06e37 PR |
142 | /* |
143 | * at76c503-i3863 | |
144 | */ | |
145 | /* Generic AT76C503/3863 device */ | |
89cb7e7f | 146 | {USB_DEVICE(0x03eb, 0x7604), USB_DEVICE_DATA(BOARD_503_ISL3863)}, |
99e06e37 | 147 | /* Samsung SWL-2100U */ |
89cb7e7f | 148 | {USB_DEVICE(0x055d, 0xa000), USB_DEVICE_DATA(BOARD_503_ISL3863)}, |
99e06e37 PR |
149 | /* |
150 | * at76c503-rfmd | |
151 | */ | |
152 | /* Generic AT76C503/RFMD device */ | |
89cb7e7f | 153 | {USB_DEVICE(0x03eb, 0x7605), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 154 | /* Dynalink/Askey WLL013 (rfmd) */ |
89cb7e7f | 155 | {USB_DEVICE(0x069a, 0x0321), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 156 | /* Linksys WUSB11 v2.6 */ |
89cb7e7f | 157 | {USB_DEVICE(0x077b, 0x2219), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 158 | /* Network Everywhere NWU11B */ |
89cb7e7f | 159 | {USB_DEVICE(0x077b, 0x2227), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 160 | /* Netgear MA101 rev. B */ |
89cb7e7f | 161 | {USB_DEVICE(0x0864, 0x4102), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 162 | /* D-Link DWL-120 rev. E */ |
89cb7e7f | 163 | {USB_DEVICE(0x2001, 0x3200), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 164 | /* Actiontec 802UAT1, HWU01150-01UK */ |
89cb7e7f | 165 | {USB_DEVICE(0x1668, 0x7605), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 166 | /* AirVast W-Buddie WN210 */ |
89cb7e7f | 167 | {USB_DEVICE(0x03eb, 0x4102), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 168 | /* Dick Smith Electronics XH1153 802.11b USB adapter */ |
89cb7e7f | 169 | {USB_DEVICE(0x1371, 0x5743), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 170 | /* CNet CNUSB611 */ |
89cb7e7f | 171 | {USB_DEVICE(0x1371, 0x0001), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 172 | /* FiberLine FL-WL200U */ |
89cb7e7f | 173 | {USB_DEVICE(0x1371, 0x0002), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 174 | /* BenQ AWL400 USB stick */ |
89cb7e7f | 175 | {USB_DEVICE(0x04a5, 0x9001), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 176 | /* 3Com 3CRSHEW696 */ |
89cb7e7f | 177 | {USB_DEVICE(0x0506, 0x0a01), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 178 | /* Siemens Santis ADSL WLAN USB adapter WLL 013 */ |
89cb7e7f | 179 | {USB_DEVICE(0x0681, 0x001b), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 180 | /* Belkin F5D6050, version 2 */ |
89cb7e7f | 181 | {USB_DEVICE(0x050d, 0x0050), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 182 | /* iBlitzz, BWU613 (not *B or *SB) */ |
89cb7e7f | 183 | {USB_DEVICE(0x07b8, 0xb000), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 184 | /* Gigabyte GN-WLBM101 */ |
89cb7e7f | 185 | {USB_DEVICE(0x1044, 0x8003), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 186 | /* Planex GW-US11S */ |
89cb7e7f | 187 | {USB_DEVICE(0x2019, 0x3220), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 188 | /* Internal WLAN adapter in h5[4,5]xx series iPAQs */ |
89cb7e7f | 189 | {USB_DEVICE(0x049f, 0x0032), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 190 | /* Corega Wireless LAN USB-11 mini */ |
89cb7e7f | 191 | {USB_DEVICE(0x07aa, 0x0011), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 192 | /* Corega Wireless LAN USB-11 mini2 */ |
89cb7e7f | 193 | {USB_DEVICE(0x07aa, 0x0018), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 | 194 | /* Uniden PCW100 */ |
89cb7e7f | 195 | {USB_DEVICE(0x05dd, 0xff35), USB_DEVICE_DATA(BOARD_503)}, |
99e06e37 PR |
196 | /* |
197 | * at76c503-rfmd-acc | |
198 | */ | |
199 | /* SMC2664W */ | |
89cb7e7f | 200 | {USB_DEVICE(0x083a, 0x3501), USB_DEVICE_DATA(BOARD_503_ACC)}, |
99e06e37 | 201 | /* Belkin F5D6050, SMC2662W v2, SMC2662W-AR */ |
89cb7e7f | 202 | {USB_DEVICE(0x0d5c, 0xa002), USB_DEVICE_DATA(BOARD_503_ACC)}, |
99e06e37 PR |
203 | /* |
204 | * at76c505-rfmd | |
205 | */ | |
206 | /* Generic AT76C505/RFMD */ | |
89cb7e7f | 207 | {USB_DEVICE(0x03eb, 0x7606), USB_DEVICE_DATA(BOARD_505)}, |
99e06e37 PR |
208 | /* |
209 | * at76c505-rfmd2958 | |
210 | */ | |
211 | /* Generic AT76C505/RFMD, OvisLink WL-1130USB */ | |
89cb7e7f | 212 | {USB_DEVICE(0x03eb, 0x7613), USB_DEVICE_DATA(BOARD_505_2958)}, |
99e06e37 | 213 | /* Fiberline FL-WL240U */ |
89cb7e7f | 214 | {USB_DEVICE(0x1371, 0x0014), USB_DEVICE_DATA(BOARD_505_2958)}, |
99e06e37 | 215 | /* CNet CNUSB-611G */ |
89cb7e7f | 216 | {USB_DEVICE(0x1371, 0x0013), USB_DEVICE_DATA(BOARD_505_2958)}, |
99e06e37 | 217 | /* Linksys WUSB11 v2.8 */ |
89cb7e7f | 218 | {USB_DEVICE(0x1915, 0x2233), USB_DEVICE_DATA(BOARD_505_2958)}, |
99e06e37 | 219 | /* Xterasys XN-2122B, IBlitzz BWU613B/BWU613SB */ |
89cb7e7f | 220 | {USB_DEVICE(0x12fd, 0x1001), USB_DEVICE_DATA(BOARD_505_2958)}, |
99e06e37 | 221 | /* Corega WLAN USB Stick 11 */ |
89cb7e7f | 222 | {USB_DEVICE(0x07aa, 0x7613), USB_DEVICE_DATA(BOARD_505_2958)}, |
99e06e37 | 223 | /* Microstar MSI Box MS6978 */ |
89cb7e7f | 224 | {USB_DEVICE(0x0db0, 0x1020), USB_DEVICE_DATA(BOARD_505_2958)}, |
99e06e37 PR |
225 | /* |
226 | * at76c505a-rfmd2958 | |
227 | */ | |
228 | /* Generic AT76C505A device */ | |
89cb7e7f | 229 | {USB_DEVICE(0x03eb, 0x7614), USB_DEVICE_DATA(BOARD_505A)}, |
99e06e37 | 230 | /* Generic AT76C505AS device */ |
89cb7e7f | 231 | {USB_DEVICE(0x03eb, 0x7617), USB_DEVICE_DATA(BOARD_505A)}, |
99e06e37 | 232 | /* Siemens Gigaset USB WLAN Adapter 11 */ |
89cb7e7f | 233 | {USB_DEVICE(0x1690, 0x0701), USB_DEVICE_DATA(BOARD_505A)}, |
07f26986 JL |
234 | /* OQO Model 01+ Internal Wi-Fi */ |
235 | {USB_DEVICE(0x1557, 0x0002), USB_DEVICE_DATA(BOARD_505A)}, | |
99e06e37 PR |
236 | /* |
237 | * at76c505amx-rfmd | |
238 | */ | |
239 | /* Generic AT76C505AMX device */ | |
89cb7e7f GKH |
240 | {USB_DEVICE(0x03eb, 0x7615), USB_DEVICE_DATA(BOARD_505AMX)}, |
241 | {} | |
99e06e37 PR |
242 | }; |
243 | ||
244 | MODULE_DEVICE_TABLE(usb, dev_table); | |
245 | ||
246 | /* Supported rates of this hardware, bit 7 marks basic rates */ | |
247 | static const u8 hw_rates[] = { 0x82, 0x84, 0x0b, 0x16 }; | |
248 | ||
89cb7e7f GKH |
249 | /* Frequency of each channel in MHz */ |
250 | static const long channel_frequency[] = { | |
251 | 2412, 2417, 2422, 2427, 2432, 2437, 2442, | |
252 | 2447, 2452, 2457, 2462, 2467, 2472, 2484 | |
253 | }; | |
254 | ||
255 | #define NUM_CHANNELS ARRAY_SIZE(channel_frequency) | |
256 | ||
99e06e37 PR |
257 | static const char *const preambles[] = { "long", "short", "auto" }; |
258 | ||
89cb7e7f GKH |
259 | static const char *const mac_states[] = { |
260 | [MAC_INIT] = "INIT", | |
261 | [MAC_SCANNING] = "SCANNING", | |
262 | [MAC_AUTH] = "AUTH", | |
263 | [MAC_ASSOC] = "ASSOC", | |
264 | [MAC_JOINING] = "JOINING", | |
265 | [MAC_CONNECTED] = "CONNECTED", | |
266 | [MAC_OWN_IBSS] = "OWN_IBSS" | |
267 | }; | |
268 | ||
99e06e37 PR |
269 | /* Firmware download */ |
270 | /* DFU states */ | |
271 | #define STATE_IDLE 0x00 | |
272 | #define STATE_DETACH 0x01 | |
273 | #define STATE_DFU_IDLE 0x02 | |
274 | #define STATE_DFU_DOWNLOAD_SYNC 0x03 | |
275 | #define STATE_DFU_DOWNLOAD_BUSY 0x04 | |
276 | #define STATE_DFU_DOWNLOAD_IDLE 0x05 | |
277 | #define STATE_DFU_MANIFEST_SYNC 0x06 | |
278 | #define STATE_DFU_MANIFEST 0x07 | |
279 | #define STATE_DFU_MANIFEST_WAIT_RESET 0x08 | |
280 | #define STATE_DFU_UPLOAD_IDLE 0x09 | |
281 | #define STATE_DFU_ERROR 0x0a | |
282 | ||
283 | /* DFU commands */ | |
284 | #define DFU_DETACH 0 | |
285 | #define DFU_DNLOAD 1 | |
286 | #define DFU_UPLOAD 2 | |
287 | #define DFU_GETSTATUS 3 | |
288 | #define DFU_CLRSTATUS 4 | |
289 | #define DFU_GETSTATE 5 | |
290 | #define DFU_ABORT 6 | |
291 | ||
292 | #define FW_BLOCK_SIZE 1024 | |
293 | ||
294 | struct dfu_status { | |
295 | unsigned char status; | |
296 | unsigned char poll_timeout[3]; | |
297 | unsigned char state; | |
298 | unsigned char string; | |
299 | } __attribute__((packed)); | |
300 | ||
301 | static inline int at76_is_intersil(enum board_type board) | |
302 | { | |
89cb7e7f | 303 | return (board == BOARD_503_ISL3861 || board == BOARD_503_ISL3863); |
99e06e37 PR |
304 | } |
305 | ||
306 | static inline int at76_is_503rfmd(enum board_type board) | |
307 | { | |
89cb7e7f | 308 | return (board == BOARD_503 || board == BOARD_503_ACC); |
02227c28 JL |
309 | } |
310 | ||
99e06e37 PR |
311 | static inline int at76_is_505a(enum board_type board) |
312 | { | |
89cb7e7f | 313 | return (board == BOARD_505A || board == BOARD_505AMX); |
99e06e37 PR |
314 | } |
315 | ||
316 | /* Load a block of the first (internal) part of the firmware */ | |
317 | static int at76_load_int_fw_block(struct usb_device *udev, int blockno, | |
318 | void *block, int size) | |
319 | { | |
320 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), DFU_DNLOAD, | |
321 | USB_TYPE_CLASS | USB_DIR_OUT | | |
322 | USB_RECIP_INTERFACE, blockno, 0, block, size, | |
323 | USB_CTRL_GET_TIMEOUT); | |
324 | } | |
325 | ||
326 | static int at76_dfu_get_status(struct usb_device *udev, | |
327 | struct dfu_status *status) | |
328 | { | |
329 | int ret; | |
330 | ||
331 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATUS, | |
332 | USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, | |
333 | 0, 0, status, sizeof(struct dfu_status), | |
334 | USB_CTRL_GET_TIMEOUT); | |
335 | return ret; | |
336 | } | |
337 | ||
338 | static u8 at76_dfu_get_state(struct usb_device *udev, u8 *state) | |
339 | { | |
340 | int ret; | |
341 | ||
342 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATE, | |
343 | USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, | |
344 | 0, 0, state, 1, USB_CTRL_GET_TIMEOUT); | |
345 | return ret; | |
346 | } | |
347 | ||
348 | /* Convert timeout from the DFU status to jiffies */ | |
349 | static inline unsigned long at76_get_timeout(struct dfu_status *s) | |
350 | { | |
351 | return msecs_to_jiffies((s->poll_timeout[2] << 16) | |
352 | | (s->poll_timeout[1] << 8) | |
353 | | (s->poll_timeout[0])); | |
354 | } | |
355 | ||
356 | /* Load internal firmware from the buffer. If manifest_sync_timeout > 0, use | |
357 | * its value in jiffies in the MANIFEST_SYNC state. */ | |
358 | static int at76_usbdfu_download(struct usb_device *udev, u8 *buf, u32 size, | |
359 | int manifest_sync_timeout) | |
360 | { | |
361 | u8 *block; | |
362 | struct dfu_status dfu_stat_buf; | |
363 | int ret = 0; | |
364 | int need_dfu_state = 1; | |
365 | int is_done = 0; | |
366 | u8 dfu_state = 0; | |
367 | u32 dfu_timeout = 0; | |
368 | int bsize = 0; | |
369 | int blockno = 0; | |
370 | ||
371 | at76_dbg(DBG_DFU, "%s( %p, %u, %d)", __func__, buf, size, | |
372 | manifest_sync_timeout); | |
373 | ||
374 | if (!size) { | |
375 | dev_printk(KERN_ERR, &udev->dev, "FW buffer length invalid!\n"); | |
376 | return -EINVAL; | |
377 | } | |
378 | ||
379 | block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL); | |
380 | if (!block) | |
381 | return -ENOMEM; | |
382 | ||
383 | do { | |
384 | if (need_dfu_state) { | |
385 | ret = at76_dfu_get_state(udev, &dfu_state); | |
386 | if (ret < 0) { | |
387 | dev_printk(KERN_ERR, &udev->dev, | |
388 | "cannot get DFU state: %d\n", ret); | |
389 | goto exit; | |
390 | } | |
391 | need_dfu_state = 0; | |
392 | } | |
393 | ||
394 | switch (dfu_state) { | |
395 | case STATE_DFU_DOWNLOAD_SYNC: | |
396 | at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_SYNC"); | |
397 | ret = at76_dfu_get_status(udev, &dfu_stat_buf); | |
398 | if (ret >= 0) { | |
399 | dfu_state = dfu_stat_buf.state; | |
400 | dfu_timeout = at76_get_timeout(&dfu_stat_buf); | |
401 | need_dfu_state = 0; | |
402 | } else | |
403 | dev_printk(KERN_ERR, &udev->dev, | |
404 | "at76_dfu_get_status returned %d\n", | |
405 | ret); | |
406 | break; | |
407 | ||
408 | case STATE_DFU_DOWNLOAD_BUSY: | |
409 | at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_BUSY"); | |
410 | need_dfu_state = 1; | |
411 | ||
412 | at76_dbg(DBG_DFU, "DFU: Resetting device"); | |
413 | schedule_timeout_interruptible(dfu_timeout); | |
414 | break; | |
415 | ||
416 | case STATE_DFU_DOWNLOAD_IDLE: | |
417 | at76_dbg(DBG_DFU, "DOWNLOAD..."); | |
418 | /* fall through */ | |
419 | case STATE_DFU_IDLE: | |
420 | at76_dbg(DBG_DFU, "DFU IDLE"); | |
421 | ||
422 | bsize = min_t(int, size, FW_BLOCK_SIZE); | |
423 | memcpy(block, buf, bsize); | |
424 | at76_dbg(DBG_DFU, "int fw, size left = %5d, " | |
425 | "bsize = %4d, blockno = %2d", size, bsize, | |
426 | blockno); | |
427 | ret = | |
428 | at76_load_int_fw_block(udev, blockno, block, bsize); | |
429 | buf += bsize; | |
430 | size -= bsize; | |
431 | blockno++; | |
432 | ||
433 | if (ret != bsize) | |
434 | dev_printk(KERN_ERR, &udev->dev, | |
435 | "at76_load_int_fw_block " | |
436 | "returned %d\n", ret); | |
437 | need_dfu_state = 1; | |
438 | break; | |
439 | ||
440 | case STATE_DFU_MANIFEST_SYNC: | |
441 | at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_SYNC"); | |
442 | ||
443 | ret = at76_dfu_get_status(udev, &dfu_stat_buf); | |
444 | if (ret < 0) | |
445 | break; | |
446 | ||
447 | dfu_state = dfu_stat_buf.state; | |
448 | dfu_timeout = at76_get_timeout(&dfu_stat_buf); | |
449 | need_dfu_state = 0; | |
450 | ||
451 | /* override the timeout from the status response, | |
452 | needed for AT76C505A */ | |
453 | if (manifest_sync_timeout > 0) | |
454 | dfu_timeout = manifest_sync_timeout; | |
455 | ||
456 | at76_dbg(DBG_DFU, "DFU: Waiting for manifest phase"); | |
457 | schedule_timeout_interruptible(dfu_timeout); | |
458 | break; | |
459 | ||
460 | case STATE_DFU_MANIFEST: | |
461 | at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST"); | |
462 | is_done = 1; | |
463 | break; | |
464 | ||
465 | case STATE_DFU_MANIFEST_WAIT_RESET: | |
466 | at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_WAIT_RESET"); | |
467 | is_done = 1; | |
468 | break; | |
469 | ||
470 | case STATE_DFU_UPLOAD_IDLE: | |
471 | at76_dbg(DBG_DFU, "STATE_DFU_UPLOAD_IDLE"); | |
472 | break; | |
473 | ||
474 | case STATE_DFU_ERROR: | |
475 | at76_dbg(DBG_DFU, "STATE_DFU_ERROR"); | |
476 | ret = -EPIPE; | |
477 | break; | |
478 | ||
479 | default: | |
480 | at76_dbg(DBG_DFU, "DFU UNKNOWN STATE (%d)", dfu_state); | |
481 | ret = -EINVAL; | |
482 | break; | |
483 | } | |
484 | } while (!is_done && (ret >= 0)); | |
485 | ||
486 | exit: | |
487 | kfree(block); | |
488 | if (ret >= 0) | |
489 | ret = 0; | |
490 | ||
491 | return ret; | |
492 | } | |
493 | ||
89cb7e7f GKH |
494 | /* Report that the scan results are ready */ |
495 | static inline void at76_iwevent_scan_complete(struct net_device *netdev) | |
496 | { | |
497 | union iwreq_data wrqu; | |
498 | wrqu.data.length = 0; | |
499 | wrqu.data.flags = 0; | |
500 | wireless_send_event(netdev, SIOCGIWSCAN, &wrqu, NULL); | |
501 | at76_dbg(DBG_WE_EVENTS, "%s: SIOCGIWSCAN sent", netdev->name); | |
502 | } | |
503 | ||
504 | static inline void at76_iwevent_bss_connect(struct net_device *netdev, | |
505 | u8 *bssid) | |
506 | { | |
507 | union iwreq_data wrqu; | |
508 | wrqu.data.length = 0; | |
509 | wrqu.data.flags = 0; | |
510 | memcpy(wrqu.ap_addr.sa_data, bssid, ETH_ALEN); | |
511 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
512 | wireless_send_event(netdev, SIOCGIWAP, &wrqu, NULL); | |
513 | at76_dbg(DBG_WE_EVENTS, "%s: %s: SIOCGIWAP sent", netdev->name, | |
514 | __func__); | |
515 | } | |
516 | ||
517 | static inline void at76_iwevent_bss_disconnect(struct net_device *netdev) | |
518 | { | |
519 | union iwreq_data wrqu; | |
520 | wrqu.data.length = 0; | |
521 | wrqu.data.flags = 0; | |
522 | memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN); | |
523 | wrqu.ap_addr.sa_family = ARPHRD_ETHER; | |
524 | wireless_send_event(netdev, SIOCGIWAP, &wrqu, NULL); | |
525 | at76_dbg(DBG_WE_EVENTS, "%s: %s: SIOCGIWAP sent", netdev->name, | |
526 | __func__); | |
527 | } | |
528 | ||
99e06e37 PR |
529 | #define HEX2STR_BUFFERS 4 |
530 | #define HEX2STR_MAX_LEN 64 | |
531 | #define BIN2HEX(x) ((x) < 10 ? '0' + (x) : (x) + 'A' - 10) | |
532 | ||
533 | /* Convert binary data into hex string */ | |
534 | static char *hex2str(void *buf, int len) | |
535 | { | |
536 | static atomic_t a = ATOMIC_INIT(0); | |
537 | static char bufs[HEX2STR_BUFFERS][3 * HEX2STR_MAX_LEN + 1]; | |
538 | char *ret = bufs[atomic_inc_return(&a) & (HEX2STR_BUFFERS - 1)]; | |
539 | char *obuf = ret; | |
540 | u8 *ibuf = buf; | |
541 | ||
542 | if (len > HEX2STR_MAX_LEN) | |
543 | len = HEX2STR_MAX_LEN; | |
544 | ||
545 | if (len <= 0) { | |
546 | ret[0] = '\0'; | |
547 | return ret; | |
548 | } | |
549 | ||
550 | while (len--) { | |
551 | *obuf++ = BIN2HEX(*ibuf >> 4); | |
552 | *obuf++ = BIN2HEX(*ibuf & 0xf); | |
553 | *obuf++ = '-'; | |
554 | ibuf++; | |
555 | } | |
556 | *(--obuf) = '\0'; | |
557 | ||
558 | return ret; | |
559 | } | |
560 | ||
561 | #define MAC2STR_BUFFERS 4 | |
562 | ||
563 | static inline char *mac2str(u8 *mac) | |
564 | { | |
565 | static atomic_t a = ATOMIC_INIT(0); | |
566 | static char bufs[MAC2STR_BUFFERS][6 * 3]; | |
567 | char *str; | |
568 | ||
569 | str = bufs[atomic_inc_return(&a) & (MAC2STR_BUFFERS - 1)]; | |
570 | sprintf(str, "%02x:%02x:%02x:%02x:%02x:%02x", | |
571 | mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); | |
572 | return str; | |
573 | } | |
574 | ||
575 | /* LED trigger */ | |
576 | static int tx_activity; | |
577 | static void at76_ledtrig_tx_timerfunc(unsigned long data); | |
578 | static DEFINE_TIMER(ledtrig_tx_timer, at76_ledtrig_tx_timerfunc, 0, 0); | |
579 | DEFINE_LED_TRIGGER(ledtrig_tx); | |
580 | ||
581 | static void at76_ledtrig_tx_timerfunc(unsigned long data) | |
582 | { | |
583 | static int tx_lastactivity; | |
584 | ||
585 | if (tx_lastactivity != tx_activity) { | |
586 | tx_lastactivity = tx_activity; | |
587 | led_trigger_event(ledtrig_tx, LED_FULL); | |
588 | mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4); | |
589 | } else | |
590 | led_trigger_event(ledtrig_tx, LED_OFF); | |
591 | } | |
592 | ||
593 | static void at76_ledtrig_tx_activity(void) | |
594 | { | |
595 | tx_activity++; | |
596 | if (!timer_pending(&ledtrig_tx_timer)) | |
597 | mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4); | |
598 | } | |
599 | ||
89cb7e7f GKH |
600 | /* Check if the given ssid is hidden */ |
601 | static inline int at76_is_hidden_ssid(u8 *ssid, int length) | |
602 | { | |
603 | static const u8 zeros[32]; | |
604 | ||
605 | if (length == 0) | |
606 | return 1; | |
607 | ||
608 | if (length == 1 && ssid[0] == ' ') | |
609 | return 1; | |
610 | ||
611 | return (memcmp(ssid, zeros, length) == 0); | |
612 | } | |
613 | ||
614 | static inline void at76_free_bss_list(struct at76_priv *priv) | |
615 | { | |
616 | struct list_head *next, *ptr; | |
617 | unsigned long flags; | |
618 | ||
619 | spin_lock_irqsave(&priv->bss_list_spinlock, flags); | |
620 | ||
621 | priv->curr_bss = NULL; | |
622 | ||
623 | list_for_each_safe(ptr, next, &priv->bss_list) { | |
624 | list_del(ptr); | |
625 | kfree(list_entry(ptr, struct bss_info, list)); | |
626 | } | |
627 | ||
628 | spin_unlock_irqrestore(&priv->bss_list_spinlock, flags); | |
629 | } | |
630 | ||
99e06e37 PR |
631 | static int at76_remap(struct usb_device *udev) |
632 | { | |
633 | int ret; | |
634 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0a, | |
635 | USB_TYPE_VENDOR | USB_DIR_OUT | | |
636 | USB_RECIP_INTERFACE, 0, 0, NULL, 0, | |
637 | USB_CTRL_GET_TIMEOUT); | |
638 | if (ret < 0) | |
639 | return ret; | |
640 | return 0; | |
641 | } | |
642 | ||
643 | static int at76_get_op_mode(struct usb_device *udev) | |
644 | { | |
645 | int ret; | |
0d1d1424 ON |
646 | u8 saved; |
647 | u8 *op_mode; | |
99e06e37 | 648 | |
0d1d1424 ON |
649 | op_mode = kmalloc(1, GFP_NOIO); |
650 | if (!op_mode) | |
651 | return -ENOMEM; | |
99e06e37 PR |
652 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, |
653 | USB_TYPE_VENDOR | USB_DIR_IN | | |
ea8f9fe6 | 654 | USB_RECIP_INTERFACE, 0x01, 0, op_mode, 1, |
99e06e37 | 655 | USB_CTRL_GET_TIMEOUT); |
0d1d1424 ON |
656 | saved = *op_mode; |
657 | kfree(op_mode); | |
658 | ||
99e06e37 PR |
659 | if (ret < 0) |
660 | return ret; | |
661 | else if (ret < 1) | |
662 | return -EIO; | |
663 | else | |
0d1d1424 | 664 | return saved; |
99e06e37 PR |
665 | } |
666 | ||
667 | /* Load a block of the second ("external") part of the firmware */ | |
668 | static inline int at76_load_ext_fw_block(struct usb_device *udev, int blockno, | |
669 | void *block, int size) | |
670 | { | |
671 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e, | |
672 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
673 | 0x0802, blockno, block, size, | |
674 | USB_CTRL_GET_TIMEOUT); | |
675 | } | |
676 | ||
677 | static inline int at76_get_hw_cfg(struct usb_device *udev, | |
678 | union at76_hwcfg *buf, int buf_size) | |
679 | { | |
680 | return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, | |
681 | USB_TYPE_VENDOR | USB_DIR_IN | | |
682 | USB_RECIP_INTERFACE, 0x0a02, 0, | |
683 | buf, buf_size, USB_CTRL_GET_TIMEOUT); | |
684 | } | |
685 | ||
686 | /* Intersil boards use a different "value" for GetHWConfig requests */ | |
687 | static inline int at76_get_hw_cfg_intersil(struct usb_device *udev, | |
688 | union at76_hwcfg *buf, int buf_size) | |
689 | { | |
690 | return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, | |
691 | USB_TYPE_VENDOR | USB_DIR_IN | | |
692 | USB_RECIP_INTERFACE, 0x0902, 0, | |
693 | buf, buf_size, USB_CTRL_GET_TIMEOUT); | |
694 | } | |
695 | ||
696 | /* Get the hardware configuration for the adapter and put it to the appropriate | |
697 | * fields of 'priv' (the GetHWConfig request and interpretation of the result | |
698 | * depends on the board type) */ | |
699 | static int at76_get_hw_config(struct at76_priv *priv) | |
700 | { | |
701 | int ret; | |
702 | union at76_hwcfg *hwcfg = kmalloc(sizeof(*hwcfg), GFP_KERNEL); | |
703 | ||
704 | if (!hwcfg) | |
705 | return -ENOMEM; | |
706 | ||
707 | if (at76_is_intersil(priv->board_type)) { | |
708 | ret = at76_get_hw_cfg_intersil(priv->udev, hwcfg, | |
709 | sizeof(hwcfg->i)); | |
710 | if (ret < 0) | |
711 | goto exit; | |
712 | memcpy(priv->mac_addr, hwcfg->i.mac_addr, ETH_ALEN); | |
713 | priv->regulatory_domain = hwcfg->i.regulatory_domain; | |
714 | } else if (at76_is_503rfmd(priv->board_type)) { | |
715 | ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r3)); | |
716 | if (ret < 0) | |
717 | goto exit; | |
718 | memcpy(priv->mac_addr, hwcfg->r3.mac_addr, ETH_ALEN); | |
719 | priv->regulatory_domain = hwcfg->r3.regulatory_domain; | |
720 | } else { | |
721 | ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r5)); | |
722 | if (ret < 0) | |
723 | goto exit; | |
724 | memcpy(priv->mac_addr, hwcfg->r5.mac_addr, ETH_ALEN); | |
725 | priv->regulatory_domain = hwcfg->r5.regulatory_domain; | |
726 | } | |
727 | ||
728 | exit: | |
729 | kfree(hwcfg); | |
730 | if (ret < 0) | |
731 | printk(KERN_ERR "%s: cannot get HW Config (error %d)\n", | |
89cb7e7f | 732 | priv->netdev->name, ret); |
99e06e37 PR |
733 | |
734 | return ret; | |
735 | } | |
736 | ||
737 | static struct reg_domain const *at76_get_reg_domain(u16 code) | |
738 | { | |
739 | int i; | |
740 | static struct reg_domain const fd_tab[] = { | |
89cb7e7f GKH |
741 | {0x10, "FCC (USA)", 0x7ff}, /* ch 1-11 */ |
742 | {0x20, "IC (Canada)", 0x7ff}, /* ch 1-11 */ | |
743 | {0x30, "ETSI (most of Europe)", 0x1fff}, /* ch 1-13 */ | |
744 | {0x31, "Spain", 0x600}, /* ch 10-11 */ | |
745 | {0x32, "France", 0x1e00}, /* ch 10-13 */ | |
746 | {0x40, "MKK (Japan)", 0x2000}, /* ch 14 */ | |
747 | {0x41, "MKK1 (Japan)", 0x3fff}, /* ch 1-14 */ | |
748 | {0x50, "Israel", 0x3fc}, /* ch 3-9 */ | |
749 | {0x00, "<unknown>", 0xffffffff} /* ch 1-32 */ | |
99e06e37 PR |
750 | }; |
751 | ||
752 | /* Last entry is fallback for unknown domain code */ | |
753 | for (i = 0; i < ARRAY_SIZE(fd_tab) - 1; i++) | |
754 | if (code == fd_tab[i].code) | |
755 | break; | |
756 | ||
757 | return &fd_tab[i]; | |
758 | } | |
759 | ||
760 | static inline int at76_get_mib(struct usb_device *udev, u16 mib, void *buf, | |
761 | int buf_size) | |
762 | { | |
763 | int ret; | |
764 | ||
765 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, | |
766 | USB_TYPE_VENDOR | USB_DIR_IN | | |
767 | USB_RECIP_INTERFACE, mib << 8, 0, buf, buf_size, | |
768 | USB_CTRL_GET_TIMEOUT); | |
769 | if (ret >= 0 && ret != buf_size) | |
770 | return -EIO; | |
771 | return ret; | |
772 | } | |
773 | ||
774 | /* Return positive number for status, negative for an error */ | |
775 | static inline int at76_get_cmd_status(struct usb_device *udev, u8 cmd) | |
776 | { | |
0d1d1424 | 777 | u8 *stat_buf; |
99e06e37 PR |
778 | int ret; |
779 | ||
0d1d1424 ON |
780 | stat_buf = kmalloc(40, GFP_NOIO); |
781 | if (!stat_buf) | |
782 | return -ENOMEM; | |
783 | ||
99e06e37 PR |
784 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x22, |
785 | USB_TYPE_VENDOR | USB_DIR_IN | | |
786 | USB_RECIP_INTERFACE, cmd, 0, stat_buf, | |
ea8f9fe6 | 787 | 40, USB_CTRL_GET_TIMEOUT); |
0d1d1424 ON |
788 | if (ret >= 0) |
789 | ret = stat_buf[5]; | |
790 | kfree(stat_buf); | |
99e06e37 | 791 | |
0d1d1424 | 792 | return ret; |
99e06e37 PR |
793 | } |
794 | ||
0d1d1424 | 795 | static int at76_set_card_command(struct usb_device *udev, u8 cmd, void *buf, |
99e06e37 PR |
796 | int buf_size) |
797 | { | |
798 | int ret; | |
799 | struct at76_command *cmd_buf = kmalloc(sizeof(struct at76_command) + | |
800 | buf_size, GFP_KERNEL); | |
801 | ||
802 | if (!cmd_buf) | |
803 | return -ENOMEM; | |
804 | ||
805 | cmd_buf->cmd = cmd; | |
806 | cmd_buf->reserved = 0; | |
807 | cmd_buf->size = cpu_to_le16(buf_size); | |
808 | memcpy(cmd_buf->data, buf, buf_size); | |
809 | ||
810 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e, | |
811 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
812 | 0, 0, cmd_buf, | |
813 | sizeof(struct at76_command) + buf_size, | |
814 | USB_CTRL_GET_TIMEOUT); | |
815 | kfree(cmd_buf); | |
816 | return ret; | |
817 | } | |
818 | ||
819 | #define MAKE_CMD_STATUS_CASE(c) case (c): return #c | |
820 | static const char *at76_get_cmd_status_string(u8 cmd_status) | |
821 | { | |
822 | switch (cmd_status) { | |
823 | MAKE_CMD_STATUS_CASE(CMD_STATUS_IDLE); | |
824 | MAKE_CMD_STATUS_CASE(CMD_STATUS_COMPLETE); | |
825 | MAKE_CMD_STATUS_CASE(CMD_STATUS_UNKNOWN); | |
826 | MAKE_CMD_STATUS_CASE(CMD_STATUS_INVALID_PARAMETER); | |
827 | MAKE_CMD_STATUS_CASE(CMD_STATUS_FUNCTION_NOT_SUPPORTED); | |
828 | MAKE_CMD_STATUS_CASE(CMD_STATUS_TIME_OUT); | |
829 | MAKE_CMD_STATUS_CASE(CMD_STATUS_IN_PROGRESS); | |
830 | MAKE_CMD_STATUS_CASE(CMD_STATUS_HOST_FAILURE); | |
831 | MAKE_CMD_STATUS_CASE(CMD_STATUS_SCAN_FAILED); | |
832 | } | |
833 | ||
834 | return "UNKNOWN"; | |
835 | } | |
836 | ||
837 | /* Wait until the command is completed */ | |
838 | static int at76_wait_completion(struct at76_priv *priv, int cmd) | |
839 | { | |
840 | int status = 0; | |
841 | unsigned long timeout = jiffies + CMD_COMPLETION_TIMEOUT; | |
842 | ||
843 | do { | |
844 | status = at76_get_cmd_status(priv->udev, cmd); | |
845 | if (status < 0) { | |
846 | printk(KERN_ERR "%s: at76_get_cmd_status failed: %d\n", | |
89cb7e7f | 847 | priv->netdev->name, status); |
99e06e37 PR |
848 | break; |
849 | } | |
850 | ||
851 | at76_dbg(DBG_WAIT_COMPLETE, | |
852 | "%s: Waiting on cmd %d, status = %d (%s)", | |
89cb7e7f | 853 | priv->netdev->name, cmd, status, |
99e06e37 PR |
854 | at76_get_cmd_status_string(status)); |
855 | ||
856 | if (status != CMD_STATUS_IN_PROGRESS | |
857 | && status != CMD_STATUS_IDLE) | |
858 | break; | |
859 | ||
860 | schedule_timeout_interruptible(HZ / 10); /* 100 ms */ | |
861 | if (time_after(jiffies, timeout)) { | |
862 | printk(KERN_ERR | |
863 | "%s: completion timeout for command %d\n", | |
89cb7e7f | 864 | priv->netdev->name, cmd); |
99e06e37 PR |
865 | status = -ETIMEDOUT; |
866 | break; | |
867 | } | |
868 | } while (1); | |
869 | ||
870 | return status; | |
871 | } | |
872 | ||
873 | static int at76_set_mib(struct at76_priv *priv, struct set_mib_buffer *buf) | |
874 | { | |
875 | int ret; | |
876 | ||
877 | ret = at76_set_card_command(priv->udev, CMD_SET_MIB, buf, | |
878 | offsetof(struct set_mib_buffer, | |
879 | data) + buf->size); | |
880 | if (ret < 0) | |
881 | return ret; | |
882 | ||
883 | ret = at76_wait_completion(priv, CMD_SET_MIB); | |
884 | if (ret != CMD_STATUS_COMPLETE) { | |
885 | printk(KERN_INFO | |
886 | "%s: set_mib: at76_wait_completion failed " | |
89cb7e7f | 887 | "with %d\n", priv->netdev->name, ret); |
99e06e37 PR |
888 | ret = -EIO; |
889 | } | |
890 | ||
891 | return ret; | |
892 | } | |
893 | ||
894 | /* Return < 0 on error, == 0 if no command sent, == 1 if cmd sent */ | |
895 | static int at76_set_radio(struct at76_priv *priv, int enable) | |
896 | { | |
897 | int ret; | |
898 | int cmd; | |
899 | ||
900 | if (priv->radio_on == enable) | |
901 | return 0; | |
902 | ||
903 | cmd = enable ? CMD_RADIO_ON : CMD_RADIO_OFF; | |
904 | ||
905 | ret = at76_set_card_command(priv->udev, cmd, NULL, 0); | |
906 | if (ret < 0) | |
907 | printk(KERN_ERR "%s: at76_set_card_command(%d) failed: %d\n", | |
89cb7e7f | 908 | priv->netdev->name, cmd, ret); |
99e06e37 PR |
909 | else |
910 | ret = 1; | |
911 | ||
912 | priv->radio_on = enable; | |
913 | return ret; | |
914 | } | |
915 | ||
916 | /* Set current power save mode (AT76_PM_OFF/AT76_PM_ON/AT76_PM_SMART) */ | |
917 | static int at76_set_pm_mode(struct at76_priv *priv) | |
918 | { | |
919 | int ret = 0; | |
920 | ||
921 | priv->mib_buf.type = MIB_MAC_MGMT; | |
922 | priv->mib_buf.size = 1; | |
923 | priv->mib_buf.index = offsetof(struct mib_mac_mgmt, power_mgmt_mode); | |
924 | priv->mib_buf.data.byte = priv->pm_mode; | |
925 | ||
926 | ret = at76_set_mib(priv, &priv->mib_buf); | |
927 | if (ret < 0) | |
928 | printk(KERN_ERR "%s: set_mib (pm_mode) failed: %d\n", | |
89cb7e7f GKH |
929 | priv->netdev->name, ret); |
930 | ||
931 | return ret; | |
932 | } | |
933 | ||
934 | /* Set the association id for power save mode */ | |
935 | static int at76_set_associd(struct at76_priv *priv, u16 id) | |
936 | { | |
937 | int ret = 0; | |
938 | ||
939 | priv->mib_buf.type = MIB_MAC_MGMT; | |
940 | priv->mib_buf.size = 2; | |
941 | priv->mib_buf.index = offsetof(struct mib_mac_mgmt, station_id); | |
942 | priv->mib_buf.data.word = cpu_to_le16(id); | |
943 | ||
944 | ret = at76_set_mib(priv, &priv->mib_buf); | |
945 | if (ret < 0) | |
946 | printk(KERN_ERR "%s: set_mib (associd) failed: %d\n", | |
947 | priv->netdev->name, ret); | |
948 | ||
949 | return ret; | |
950 | } | |
951 | ||
952 | /* Set the listen interval for power save mode */ | |
953 | static int at76_set_listen_interval(struct at76_priv *priv, u16 interval) | |
954 | { | |
955 | int ret = 0; | |
956 | ||
957 | priv->mib_buf.type = MIB_MAC; | |
958 | priv->mib_buf.size = 2; | |
959 | priv->mib_buf.index = offsetof(struct mib_mac, listen_interval); | |
960 | priv->mib_buf.data.word = cpu_to_le16(interval); | |
961 | ||
962 | ret = at76_set_mib(priv, &priv->mib_buf); | |
963 | if (ret < 0) | |
964 | printk(KERN_ERR | |
965 | "%s: set_mib (listen_interval) failed: %d\n", | |
966 | priv->netdev->name, ret); | |
99e06e37 PR |
967 | |
968 | return ret; | |
969 | } | |
970 | ||
99e06e37 PR |
971 | static int at76_set_preamble(struct at76_priv *priv, u8 type) |
972 | { | |
973 | int ret = 0; | |
974 | ||
975 | priv->mib_buf.type = MIB_LOCAL; | |
976 | priv->mib_buf.size = 1; | |
977 | priv->mib_buf.index = offsetof(struct mib_local, preamble_type); | |
978 | priv->mib_buf.data.byte = type; | |
979 | ||
980 | ret = at76_set_mib(priv, &priv->mib_buf); | |
981 | if (ret < 0) | |
982 | printk(KERN_ERR "%s: set_mib (preamble) failed: %d\n", | |
89cb7e7f | 983 | priv->netdev->name, ret); |
99e06e37 PR |
984 | |
985 | return ret; | |
986 | } | |
987 | ||
988 | static int at76_set_frag(struct at76_priv *priv, u16 size) | |
989 | { | |
990 | int ret = 0; | |
991 | ||
992 | priv->mib_buf.type = MIB_MAC; | |
993 | priv->mib_buf.size = 2; | |
994 | priv->mib_buf.index = offsetof(struct mib_mac, frag_threshold); | |
995 | priv->mib_buf.data.word = cpu_to_le16(size); | |
996 | ||
997 | ret = at76_set_mib(priv, &priv->mib_buf); | |
998 | if (ret < 0) | |
999 | printk(KERN_ERR "%s: set_mib (frag threshold) failed: %d\n", | |
89cb7e7f | 1000 | priv->netdev->name, ret); |
99e06e37 PR |
1001 | |
1002 | return ret; | |
1003 | } | |
1004 | ||
1005 | static int at76_set_rts(struct at76_priv *priv, u16 size) | |
1006 | { | |
1007 | int ret = 0; | |
1008 | ||
1009 | priv->mib_buf.type = MIB_MAC; | |
1010 | priv->mib_buf.size = 2; | |
1011 | priv->mib_buf.index = offsetof(struct mib_mac, rts_threshold); | |
1012 | priv->mib_buf.data.word = cpu_to_le16(size); | |
1013 | ||
1014 | ret = at76_set_mib(priv, &priv->mib_buf); | |
1015 | if (ret < 0) | |
1016 | printk(KERN_ERR "%s: set_mib (rts) failed: %d\n", | |
89cb7e7f | 1017 | priv->netdev->name, ret); |
99e06e37 PR |
1018 | |
1019 | return ret; | |
1020 | } | |
1021 | ||
1022 | static int at76_set_autorate_fallback(struct at76_priv *priv, int onoff) | |
1023 | { | |
1024 | int ret = 0; | |
1025 | ||
1026 | priv->mib_buf.type = MIB_LOCAL; | |
1027 | priv->mib_buf.size = 1; | |
1028 | priv->mib_buf.index = offsetof(struct mib_local, txautorate_fallback); | |
1029 | priv->mib_buf.data.byte = onoff; | |
1030 | ||
1031 | ret = at76_set_mib(priv, &priv->mib_buf); | |
1032 | if (ret < 0) | |
1033 | printk(KERN_ERR "%s: set_mib (autorate fallback) failed: %d\n", | |
89cb7e7f | 1034 | priv->netdev->name, ret); |
99e06e37 PR |
1035 | |
1036 | return ret; | |
1037 | } | |
1038 | ||
89cb7e7f | 1039 | static int at76_add_mac_address(struct at76_priv *priv, void *addr) |
02227c28 JL |
1040 | { |
1041 | int ret = 0; | |
1042 | ||
89cb7e7f | 1043 | priv->mib_buf.type = MIB_MAC_ADDR; |
02227c28 | 1044 | priv->mib_buf.size = ETH_ALEN; |
89cb7e7f | 1045 | priv->mib_buf.index = offsetof(struct mib_mac_addr, mac_addr); |
02227c28 JL |
1046 | memcpy(priv->mib_buf.data.addr, addr, ETH_ALEN); |
1047 | ||
1048 | ret = at76_set_mib(priv, &priv->mib_buf); | |
1049 | if (ret < 0) | |
89cb7e7f GKH |
1050 | printk(KERN_ERR "%s: set_mib (MAC_ADDR, mac_addr) failed: %d\n", |
1051 | priv->netdev->name, ret); | |
99e06e37 PR |
1052 | |
1053 | return ret; | |
1054 | } | |
1055 | ||
1056 | static void at76_dump_mib_mac_addr(struct at76_priv *priv) | |
1057 | { | |
1058 | int i; | |
1059 | int ret; | |
1060 | struct mib_mac_addr *m = kmalloc(sizeof(struct mib_mac_addr), | |
1061 | GFP_KERNEL); | |
1062 | ||
1063 | if (!m) | |
1064 | return; | |
1065 | ||
1066 | ret = at76_get_mib(priv->udev, MIB_MAC_ADDR, m, | |
1067 | sizeof(struct mib_mac_addr)); | |
1068 | if (ret < 0) { | |
1069 | printk(KERN_ERR "%s: at76_get_mib (MAC_ADDR) failed: %d\n", | |
89cb7e7f | 1070 | priv->netdev->name, ret); |
99e06e37 PR |
1071 | goto exit; |
1072 | } | |
1073 | ||
1074 | at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: mac_addr %s res 0x%x 0x%x", | |
89cb7e7f | 1075 | priv->netdev->name, |
99e06e37 PR |
1076 | mac2str(m->mac_addr), m->res[0], m->res[1]); |
1077 | for (i = 0; i < ARRAY_SIZE(m->group_addr); i++) | |
1078 | at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: group addr %d: %s, " | |
89cb7e7f | 1079 | "status %d", priv->netdev->name, i, |
99e06e37 PR |
1080 | mac2str(m->group_addr[i]), m->group_addr_status[i]); |
1081 | exit: | |
1082 | kfree(m); | |
1083 | } | |
1084 | ||
1085 | static void at76_dump_mib_mac_wep(struct at76_priv *priv) | |
1086 | { | |
1087 | int i; | |
1088 | int ret; | |
1089 | int key_len; | |
1090 | struct mib_mac_wep *m = kmalloc(sizeof(struct mib_mac_wep), GFP_KERNEL); | |
1091 | ||
1092 | if (!m) | |
1093 | return; | |
1094 | ||
1095 | ret = at76_get_mib(priv->udev, MIB_MAC_WEP, m, | |
1096 | sizeof(struct mib_mac_wep)); | |
1097 | if (ret < 0) { | |
1098 | printk(KERN_ERR "%s: at76_get_mib (MAC_WEP) failed: %d\n", | |
89cb7e7f | 1099 | priv->netdev->name, ret); |
99e06e37 PR |
1100 | goto exit; |
1101 | } | |
1102 | ||
1103 | at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: priv_invoked %u def_key_id %u " | |
1104 | "key_len %u excl_unencr %u wep_icv_err %u wep_excluded %u " | |
89cb7e7f | 1105 | "encr_level %u key %d", priv->netdev->name, |
99e06e37 PR |
1106 | m->privacy_invoked, m->wep_default_key_id, |
1107 | m->wep_key_mapping_len, m->exclude_unencrypted, | |
1108 | le32_to_cpu(m->wep_icv_error_count), | |
1109 | le32_to_cpu(m->wep_excluded_count), m->encryption_level, | |
1110 | m->wep_default_key_id); | |
1111 | ||
1112 | key_len = (m->encryption_level == 1) ? | |
1113 | WEP_SMALL_KEY_LEN : WEP_LARGE_KEY_LEN; | |
1114 | ||
1115 | for (i = 0; i < WEP_KEYS; i++) | |
1116 | at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: key %d: %s", | |
89cb7e7f | 1117 | priv->netdev->name, i, |
99e06e37 PR |
1118 | hex2str(m->wep_default_keyvalue[i], key_len)); |
1119 | exit: | |
1120 | kfree(m); | |
1121 | } | |
1122 | ||
1123 | static void at76_dump_mib_mac_mgmt(struct at76_priv *priv) | |
1124 | { | |
1125 | int ret; | |
1126 | struct mib_mac_mgmt *m = kmalloc(sizeof(struct mib_mac_mgmt), | |
1127 | GFP_KERNEL); | |
1128 | ||
1129 | if (!m) | |
1130 | return; | |
1131 | ||
1132 | ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, m, | |
1133 | sizeof(struct mib_mac_mgmt)); | |
1134 | if (ret < 0) { | |
1135 | printk(KERN_ERR "%s: at76_get_mib (MAC_MGMT) failed: %d\n", | |
89cb7e7f | 1136 | priv->netdev->name, ret); |
99e06e37 PR |
1137 | goto exit; |
1138 | } | |
1139 | ||
1140 | at76_dbg(DBG_MIB, "%s: MIB MAC_MGMT: beacon_period %d CFP_max_duration " | |
1141 | "%d medium_occupancy_limit %d station_id 0x%x ATIM_window %d " | |
1142 | "CFP_mode %d privacy_opt_impl %d DTIM_period %d CFP_period %d " | |
1143 | "current_bssid %s current_essid %s current_bss_type %d " | |
1144 | "pm_mode %d ibss_change %d res %d " | |
1145 | "multi_domain_capability_implemented %d " | |
1146 | "international_roaming %d country_string %.3s", | |
89cb7e7f | 1147 | priv->netdev->name, le16_to_cpu(m->beacon_period), |
99e06e37 PR |
1148 | le16_to_cpu(m->CFP_max_duration), |
1149 | le16_to_cpu(m->medium_occupancy_limit), | |
1150 | le16_to_cpu(m->station_id), le16_to_cpu(m->ATIM_window), | |
1151 | m->CFP_mode, m->privacy_option_implemented, m->DTIM_period, | |
1152 | m->CFP_period, mac2str(m->current_bssid), | |
1153 | hex2str(m->current_essid, IW_ESSID_MAX_SIZE), | |
1154 | m->current_bss_type, m->power_mgmt_mode, m->ibss_change, | |
1155 | m->res, m->multi_domain_capability_implemented, | |
1156 | m->multi_domain_capability_enabled, m->country_string); | |
1157 | exit: | |
1158 | kfree(m); | |
1159 | } | |
1160 | ||
1161 | static void at76_dump_mib_mac(struct at76_priv *priv) | |
1162 | { | |
1163 | int ret; | |
1164 | struct mib_mac *m = kmalloc(sizeof(struct mib_mac), GFP_KERNEL); | |
1165 | ||
1166 | if (!m) | |
1167 | return; | |
1168 | ||
1169 | ret = at76_get_mib(priv->udev, MIB_MAC, m, sizeof(struct mib_mac)); | |
1170 | if (ret < 0) { | |
1171 | printk(KERN_ERR "%s: at76_get_mib (MAC) failed: %d\n", | |
89cb7e7f | 1172 | priv->netdev->name, ret); |
99e06e37 PR |
1173 | goto exit; |
1174 | } | |
1175 | ||
1176 | at76_dbg(DBG_MIB, "%s: MIB MAC: max_tx_msdu_lifetime %d " | |
1177 | "max_rx_lifetime %d frag_threshold %d rts_threshold %d " | |
1178 | "cwmin %d cwmax %d short_retry_time %d long_retry_time %d " | |
1179 | "scan_type %d scan_channel %d probe_delay %u " | |
1180 | "min_channel_time %d max_channel_time %d listen_int %d " | |
1181 | "desired_ssid %s desired_bssid %s desired_bsstype %d", | |
89cb7e7f | 1182 | priv->netdev->name, le32_to_cpu(m->max_tx_msdu_lifetime), |
99e06e37 PR |
1183 | le32_to_cpu(m->max_rx_lifetime), |
1184 | le16_to_cpu(m->frag_threshold), le16_to_cpu(m->rts_threshold), | |
1185 | le16_to_cpu(m->cwmin), le16_to_cpu(m->cwmax), | |
1186 | m->short_retry_time, m->long_retry_time, m->scan_type, | |
1187 | m->scan_channel, le16_to_cpu(m->probe_delay), | |
1188 | le16_to_cpu(m->min_channel_time), | |
1189 | le16_to_cpu(m->max_channel_time), | |
1190 | le16_to_cpu(m->listen_interval), | |
1191 | hex2str(m->desired_ssid, IW_ESSID_MAX_SIZE), | |
1192 | mac2str(m->desired_bssid), m->desired_bsstype); | |
1193 | exit: | |
1194 | kfree(m); | |
1195 | } | |
1196 | ||
1197 | static void at76_dump_mib_phy(struct at76_priv *priv) | |
1198 | { | |
1199 | int ret; | |
1200 | struct mib_phy *m = kmalloc(sizeof(struct mib_phy), GFP_KERNEL); | |
1201 | ||
1202 | if (!m) | |
1203 | return; | |
1204 | ||
1205 | ret = at76_get_mib(priv->udev, MIB_PHY, m, sizeof(struct mib_phy)); | |
1206 | if (ret < 0) { | |
1207 | printk(KERN_ERR "%s: at76_get_mib (PHY) failed: %d\n", | |
89cb7e7f | 1208 | priv->netdev->name, ret); |
99e06e37 PR |
1209 | goto exit; |
1210 | } | |
1211 | ||
1212 | at76_dbg(DBG_MIB, "%s: MIB PHY: ed_threshold %d slot_time %d " | |
1213 | "sifs_time %d preamble_length %d plcp_header_length %d " | |
1214 | "mpdu_max_length %d cca_mode_supported %d operation_rate_set " | |
1215 | "0x%x 0x%x 0x%x 0x%x channel_id %d current_cca_mode %d " | |
1216 | "phy_type %d current_reg_domain %d", | |
89cb7e7f | 1217 | priv->netdev->name, le32_to_cpu(m->ed_threshold), |
99e06e37 PR |
1218 | le16_to_cpu(m->slot_time), le16_to_cpu(m->sifs_time), |
1219 | le16_to_cpu(m->preamble_length), | |
1220 | le16_to_cpu(m->plcp_header_length), | |
1221 | le16_to_cpu(m->mpdu_max_length), | |
1222 | le16_to_cpu(m->cca_mode_supported), m->operation_rate_set[0], | |
1223 | m->operation_rate_set[1], m->operation_rate_set[2], | |
1224 | m->operation_rate_set[3], m->channel_id, m->current_cca_mode, | |
1225 | m->phy_type, m->current_reg_domain); | |
1226 | exit: | |
1227 | kfree(m); | |
1228 | } | |
1229 | ||
1230 | static void at76_dump_mib_local(struct at76_priv *priv) | |
1231 | { | |
1232 | int ret; | |
1233 | struct mib_local *m = kmalloc(sizeof(struct mib_phy), GFP_KERNEL); | |
1234 | ||
1235 | if (!m) | |
1236 | return; | |
1237 | ||
1238 | ret = at76_get_mib(priv->udev, MIB_LOCAL, m, sizeof(struct mib_local)); | |
1239 | if (ret < 0) { | |
1240 | printk(KERN_ERR "%s: at76_get_mib (LOCAL) failed: %d\n", | |
89cb7e7f | 1241 | priv->netdev->name, ret); |
99e06e37 PR |
1242 | goto exit; |
1243 | } | |
1244 | ||
1245 | at76_dbg(DBG_MIB, "%s: MIB LOCAL: beacon_enable %d " | |
1246 | "txautorate_fallback %d ssid_size %d promiscuous_mode %d " | |
89cb7e7f | 1247 | "preamble_type %d", priv->netdev->name, m->beacon_enable, |
99e06e37 PR |
1248 | m->txautorate_fallback, m->ssid_size, m->promiscuous_mode, |
1249 | m->preamble_type); | |
1250 | exit: | |
1251 | kfree(m); | |
1252 | } | |
1253 | ||
1254 | static void at76_dump_mib_mdomain(struct at76_priv *priv) | |
1255 | { | |
1256 | int ret; | |
1257 | struct mib_mdomain *m = kmalloc(sizeof(struct mib_mdomain), GFP_KERNEL); | |
1258 | ||
1259 | if (!m) | |
1260 | return; | |
1261 | ||
1262 | ret = at76_get_mib(priv->udev, MIB_MDOMAIN, m, | |
1263 | sizeof(struct mib_mdomain)); | |
1264 | if (ret < 0) { | |
1265 | printk(KERN_ERR "%s: at76_get_mib (MDOMAIN) failed: %d\n", | |
89cb7e7f | 1266 | priv->netdev->name, ret); |
99e06e37 PR |
1267 | goto exit; |
1268 | } | |
1269 | ||
1270 | at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: channel_list %s", | |
89cb7e7f | 1271 | priv->netdev->name, |
99e06e37 PR |
1272 | hex2str(m->channel_list, sizeof(m->channel_list))); |
1273 | ||
1274 | at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: tx_powerlevel %s", | |
89cb7e7f | 1275 | priv->netdev->name, |
99e06e37 PR |
1276 | hex2str(m->tx_powerlevel, sizeof(m->tx_powerlevel))); |
1277 | exit: | |
1278 | kfree(m); | |
1279 | } | |
1280 | ||
89cb7e7f GKH |
1281 | static int at76_get_current_bssid(struct at76_priv *priv) |
1282 | { | |
1283 | int ret = 0; | |
1284 | struct mib_mac_mgmt *mac_mgmt = | |
1285 | kmalloc(sizeof(struct mib_mac_mgmt), GFP_KERNEL); | |
1286 | ||
1287 | if (!mac_mgmt) { | |
1288 | ret = -ENOMEM; | |
1289 | goto exit; | |
1290 | } | |
1291 | ||
1292 | ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, mac_mgmt, | |
1293 | sizeof(struct mib_mac_mgmt)); | |
1294 | if (ret < 0) { | |
1295 | printk(KERN_ERR "%s: at76_get_mib failed: %d\n", | |
1296 | priv->netdev->name, ret); | |
1297 | goto error; | |
1298 | } | |
1299 | memcpy(priv->bssid, mac_mgmt->current_bssid, ETH_ALEN); | |
1300 | printk(KERN_INFO "%s: using BSSID %s\n", priv->netdev->name, | |
1301 | mac2str(priv->bssid)); | |
1302 | error: | |
1303 | kfree(mac_mgmt); | |
1304 | exit: | |
1305 | return ret; | |
1306 | } | |
1307 | ||
1308 | static int at76_get_current_channel(struct at76_priv *priv) | |
1309 | { | |
1310 | int ret = 0; | |
1311 | struct mib_phy *phy = kmalloc(sizeof(struct mib_phy), GFP_KERNEL); | |
1312 | ||
1313 | if (!phy) { | |
1314 | ret = -ENOMEM; | |
1315 | goto exit; | |
1316 | } | |
1317 | ret = at76_get_mib(priv->udev, MIB_PHY, phy, sizeof(struct mib_phy)); | |
1318 | if (ret < 0) { | |
1319 | printk(KERN_ERR "%s: at76_get_mib(MIB_PHY) failed: %d\n", | |
1320 | priv->netdev->name, ret); | |
1321 | goto error; | |
1322 | } | |
1323 | priv->channel = phy->channel_id; | |
1324 | error: | |
1325 | kfree(phy); | |
1326 | exit: | |
1327 | return ret; | |
1328 | } | |
1329 | ||
1330 | /** | |
1331 | * at76_start_scan - start a scan | |
1332 | * | |
1333 | * @use_essid - use the configured ESSID in non passive mode | |
1334 | */ | |
1335 | static int at76_start_scan(struct at76_priv *priv, int use_essid) | |
1336 | { | |
1337 | struct at76_req_scan scan; | |
1338 | ||
1339 | memset(&scan, 0, sizeof(struct at76_req_scan)); | |
1340 | memset(scan.bssid, 0xff, ETH_ALEN); | |
1341 | ||
1342 | if (use_essid) { | |
1343 | memcpy(scan.essid, priv->essid, IW_ESSID_MAX_SIZE); | |
1344 | scan.essid_size = priv->essid_size; | |
1345 | } else | |
1346 | scan.essid_size = 0; | |
1347 | ||
1348 | /* jal: why should we start at a certain channel? we do scan the whole | |
1349 | range allowed by reg domain. */ | |
1350 | scan.channel = priv->channel; | |
1351 | ||
1352 | /* atmelwlandriver differs between scan type 0 and 1 (active/passive) | |
1353 | For ad-hoc mode, it uses type 0 only. */ | |
1354 | scan.scan_type = priv->scan_mode; | |
1355 | ||
1356 | /* INFO: For probe_delay, not multiplying by 1024 as this will be | |
1357 | slightly less than min_channel_time | |
1358 | (per spec: probe delay < min. channel time) */ | |
1359 | scan.min_channel_time = cpu_to_le16(priv->scan_min_time); | |
1360 | scan.max_channel_time = cpu_to_le16(priv->scan_max_time); | |
1361 | scan.probe_delay = cpu_to_le16(priv->scan_min_time * 1000); | |
1362 | scan.international_scan = 0; | |
1363 | ||
1364 | /* other values are set to 0 for type 0 */ | |
1365 | ||
1366 | at76_dbg(DBG_PROGRESS, "%s: start_scan (use_essid = %d, intl = %d, " | |
1367 | "channel = %d, probe_delay = %d, scan_min_time = %d, " | |
1368 | "scan_max_time = %d)", | |
1369 | priv->netdev->name, use_essid, | |
1370 | scan.international_scan, scan.channel, | |
1371 | le16_to_cpu(scan.probe_delay), | |
1372 | le16_to_cpu(scan.min_channel_time), | |
1373 | le16_to_cpu(scan.max_channel_time)); | |
1374 | ||
1375 | return at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan)); | |
1376 | } | |
1377 | ||
99e06e37 PR |
1378 | /* Enable monitor mode */ |
1379 | static int at76_start_monitor(struct at76_priv *priv) | |
1380 | { | |
1381 | struct at76_req_scan scan; | |
1382 | int ret; | |
1383 | ||
1384 | memset(&scan, 0, sizeof(struct at76_req_scan)); | |
1385 | memset(scan.bssid, 0xff, ETH_ALEN); | |
1386 | ||
1387 | scan.channel = priv->channel; | |
1388 | scan.scan_type = SCAN_TYPE_PASSIVE; | |
1389 | scan.international_scan = 0; | |
1390 | ||
1391 | ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan)); | |
1392 | if (ret >= 0) | |
1393 | ret = at76_get_cmd_status(priv->udev, CMD_SCAN); | |
1394 | ||
1395 | return ret; | |
1396 | } | |
1397 | ||
89cb7e7f GKH |
1398 | static int at76_start_ibss(struct at76_priv *priv) |
1399 | { | |
1400 | struct at76_req_ibss bss; | |
1401 | int ret; | |
1402 | ||
1403 | WARN_ON(priv->mac_state != MAC_OWN_IBSS); | |
1404 | if (priv->mac_state != MAC_OWN_IBSS) | |
1405 | return -EBUSY; | |
1406 | ||
1407 | memset(&bss, 0, sizeof(struct at76_req_ibss)); | |
1408 | memset(bss.bssid, 0xff, ETH_ALEN); | |
1409 | memcpy(bss.essid, priv->essid, IW_ESSID_MAX_SIZE); | |
1410 | bss.essid_size = priv->essid_size; | |
1411 | bss.bss_type = ADHOC_MODE; | |
1412 | bss.channel = priv->channel; | |
1413 | ||
1414 | ret = at76_set_card_command(priv->udev, CMD_START_IBSS, &bss, | |
1415 | sizeof(struct at76_req_ibss)); | |
1416 | if (ret < 0) { | |
1417 | printk(KERN_ERR "%s: start_ibss failed: %d\n", | |
1418 | priv->netdev->name, ret); | |
1419 | return ret; | |
1420 | } | |
1421 | ||
1422 | ret = at76_wait_completion(priv, CMD_START_IBSS); | |
1423 | if (ret != CMD_STATUS_COMPLETE) { | |
1424 | printk(KERN_ERR "%s: start_ibss failed to complete, %d\n", | |
1425 | priv->netdev->name, ret); | |
1426 | return ret; | |
1427 | } | |
1428 | ||
1429 | ret = at76_get_current_bssid(priv); | |
1430 | if (ret < 0) | |
1431 | return ret; | |
1432 | ||
1433 | ret = at76_get_current_channel(priv); | |
1434 | if (ret < 0) | |
1435 | return ret; | |
1436 | ||
1437 | /* not sure what this is good for ??? */ | |
1438 | priv->mib_buf.type = MIB_MAC_MGMT; | |
1439 | priv->mib_buf.size = 1; | |
1440 | priv->mib_buf.index = offsetof(struct mib_mac_mgmt, ibss_change); | |
1441 | priv->mib_buf.data.byte = 0; | |
1442 | ||
1443 | ret = at76_set_mib(priv, &priv->mib_buf); | |
1444 | if (ret < 0) { | |
1445 | printk(KERN_ERR "%s: set_mib (ibss change ok) failed: %d\n", | |
1446 | priv->netdev->name, ret); | |
1447 | return ret; | |
1448 | } | |
1449 | ||
1450 | netif_carrier_on(priv->netdev); | |
1451 | netif_start_queue(priv->netdev); | |
1452 | return 0; | |
1453 | } | |
1454 | ||
1455 | /* Request card to join BSS in managed or ad-hoc mode */ | |
1456 | static int at76_join_bss(struct at76_priv *priv, struct bss_info *ptr) | |
1457 | { | |
1458 | struct at76_req_join join; | |
1459 | ||
1460 | BUG_ON(!ptr); | |
1461 | ||
1462 | memset(&join, 0, sizeof(struct at76_req_join)); | |
1463 | memcpy(join.bssid, ptr->bssid, ETH_ALEN); | |
1464 | memcpy(join.essid, ptr->ssid, ptr->ssid_len); | |
1465 | join.essid_size = ptr->ssid_len; | |
1466 | join.bss_type = (priv->iw_mode == IW_MODE_ADHOC ? 1 : 2); | |
1467 | join.channel = ptr->channel; | |
1468 | join.timeout = cpu_to_le16(2000); | |
1469 | ||
1470 | at76_dbg(DBG_PROGRESS, | |
1471 | "%s join addr %s ssid %s type %d ch %d timeout %d", | |
1472 | priv->netdev->name, mac2str(join.bssid), join.essid, | |
1473 | join.bss_type, join.channel, le16_to_cpu(join.timeout)); | |
1474 | return at76_set_card_command(priv->udev, CMD_JOIN, &join, | |
1475 | sizeof(struct at76_req_join)); | |
1476 | } | |
1477 | ||
99e06e37 PR |
1478 | /* Calculate padding from txbuf->wlength (which excludes the USB TX header), |
1479 | likely to compensate a flaw in the AT76C503A USB part ... */ | |
1480 | static inline int at76_calc_padding(int wlen) | |
1481 | { | |
1482 | /* add the USB TX header */ | |
1483 | wlen += AT76_TX_HDRLEN; | |
1484 | ||
1485 | wlen = wlen % 64; | |
1486 | ||
1487 | if (wlen < 50) | |
1488 | return 50 - wlen; | |
1489 | ||
1490 | if (wlen >= 61) | |
1491 | return 64 + 50 - wlen; | |
1492 | ||
1493 | return 0; | |
1494 | } | |
1495 | ||
89cb7e7f GKH |
1496 | /* We are doing a lot of things here in an interrupt. Need |
1497 | a bh handler (Watching TV with a TV card is probably | |
1498 | a good test: if you see flickers, we are doing too much. | |
1499 | Currently I do see flickers... even with our tasklet :-( ) | |
1500 | Maybe because the bttv driver and usb-uhci use the same interrupt | |
1501 | */ | |
1502 | /* Or maybe because our BH handler is preempting bttv's BH handler.. BHs don't | |
1503 | * solve everything.. (alex) */ | |
99e06e37 PR |
1504 | static void at76_rx_callback(struct urb *urb) |
1505 | { | |
1506 | struct at76_priv *priv = urb->context; | |
1507 | ||
1508 | priv->rx_tasklet.data = (unsigned long)urb; | |
1509 | tasklet_schedule(&priv->rx_tasklet); | |
1510 | return; | |
1511 | } | |
1512 | ||
89cb7e7f | 1513 | static void at76_tx_callback(struct urb *urb) |
99e06e37 | 1514 | { |
89cb7e7f GKH |
1515 | struct at76_priv *priv = urb->context; |
1516 | struct net_device_stats *stats = &priv->stats; | |
1517 | unsigned long flags; | |
1518 | struct at76_tx_buffer *mgmt_buf; | |
99e06e37 PR |
1519 | int ret; |
1520 | ||
89cb7e7f GKH |
1521 | switch (urb->status) { |
1522 | case 0: | |
1523 | stats->tx_packets++; | |
1524 | break; | |
1525 | case -ENOENT: | |
1526 | case -ECONNRESET: | |
1527 | /* urb has been unlinked */ | |
1528 | return; | |
1529 | default: | |
1530 | at76_dbg(DBG_URB, "%s - nonzero tx status received: %d", | |
1531 | __func__, urb->status); | |
1532 | stats->tx_errors++; | |
1533 | break; | |
99e06e37 PR |
1534 | } |
1535 | ||
89cb7e7f GKH |
1536 | spin_lock_irqsave(&priv->mgmt_spinlock, flags); |
1537 | mgmt_buf = priv->next_mgmt_bulk; | |
1538 | priv->next_mgmt_bulk = NULL; | |
1539 | spin_unlock_irqrestore(&priv->mgmt_spinlock, flags); | |
99e06e37 | 1540 | |
89cb7e7f GKH |
1541 | if (!mgmt_buf) { |
1542 | netif_wake_queue(priv->netdev); | |
1543 | return; | |
99e06e37 PR |
1544 | } |
1545 | ||
89cb7e7f GKH |
1546 | /* we don't copy the padding bytes, but add them |
1547 | to the length */ | |
1548 | memcpy(priv->bulk_out_buffer, mgmt_buf, | |
1549 | le16_to_cpu(mgmt_buf->wlength) + AT76_TX_HDRLEN); | |
1550 | usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, | |
1551 | priv->bulk_out_buffer, | |
1552 | le16_to_cpu(mgmt_buf->wlength) + mgmt_buf->padding + | |
1553 | AT76_TX_HDRLEN, at76_tx_callback, priv); | |
1554 | ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC); | |
1555 | if (ret) | |
1556 | printk(KERN_ERR "%s: error in tx submit urb: %d\n", | |
1557 | priv->netdev->name, ret); | |
99e06e37 | 1558 | |
89cb7e7f | 1559 | kfree(mgmt_buf); |
99e06e37 PR |
1560 | } |
1561 | ||
89cb7e7f GKH |
1562 | /* Send a management frame on bulk-out. txbuf->wlength must be set */ |
1563 | static int at76_tx_mgmt(struct at76_priv *priv, struct at76_tx_buffer *txbuf) | |
99e06e37 | 1564 | { |
89cb7e7f | 1565 | unsigned long flags; |
99e06e37 | 1566 | int ret; |
89cb7e7f GKH |
1567 | int urb_status; |
1568 | void *oldbuf = NULL; | |
99e06e37 | 1569 | |
89cb7e7f GKH |
1570 | netif_carrier_off(priv->netdev); /* stop netdev watchdog */ |
1571 | netif_stop_queue(priv->netdev); /* stop tx data packets */ | |
1572 | ||
1573 | spin_lock_irqsave(&priv->mgmt_spinlock, flags); | |
1574 | ||
1575 | urb_status = priv->tx_urb->status; | |
1576 | if (urb_status == -EINPROGRESS) { | |
1577 | /* cannot transmit now, put in the queue */ | |
1578 | oldbuf = priv->next_mgmt_bulk; | |
1579 | priv->next_mgmt_bulk = txbuf; | |
1580 | } | |
1581 | spin_unlock_irqrestore(&priv->mgmt_spinlock, flags); | |
1582 | ||
1583 | if (oldbuf) { | |
1584 | /* a data/mgmt tx is already pending in the URB - | |
1585 | if this is no error in some situations we must | |
1586 | implement a queue or silently modify the old msg */ | |
1587 | printk(KERN_ERR "%s: removed pending mgmt buffer %s\n", | |
1588 | priv->netdev->name, hex2str(oldbuf, 64)); | |
1589 | kfree(oldbuf); | |
1590 | return 0; | |
1591 | } | |
1592 | ||
1593 | txbuf->tx_rate = TX_RATE_1MBIT; | |
1594 | txbuf->padding = at76_calc_padding(le16_to_cpu(txbuf->wlength)); | |
1595 | memset(txbuf->reserved, 0, sizeof(txbuf->reserved)); | |
1596 | ||
1597 | if (priv->next_mgmt_bulk) | |
1598 | printk(KERN_ERR "%s: URB status %d, but mgmt is pending\n", | |
1599 | priv->netdev->name, urb_status); | |
1600 | ||
1601 | at76_dbg(DBG_TX_MGMT, | |
1602 | "%s: tx mgmt: wlen %d tx_rate %d pad %d %s", | |
1603 | priv->netdev->name, le16_to_cpu(txbuf->wlength), | |
1604 | txbuf->tx_rate, txbuf->padding, | |
1605 | hex2str(txbuf->packet, le16_to_cpu(txbuf->wlength))); | |
1606 | ||
1607 | /* txbuf was not consumed above -> send mgmt msg immediately */ | |
1608 | memcpy(priv->bulk_out_buffer, txbuf, | |
1609 | le16_to_cpu(txbuf->wlength) + AT76_TX_HDRLEN); | |
1610 | usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, | |
1611 | priv->bulk_out_buffer, | |
1612 | le16_to_cpu(txbuf->wlength) + txbuf->padding + | |
1613 | AT76_TX_HDRLEN, at76_tx_callback, priv); | |
1614 | ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC); | |
1615 | if (ret) | |
1616 | printk(KERN_ERR "%s: error in tx submit urb: %d\n", | |
1617 | priv->netdev->name, ret); | |
1618 | ||
1619 | kfree(txbuf); | |
1620 | ||
1621 | return ret; | |
1622 | } | |
1623 | ||
1624 | /* Go to the next information element */ | |
1625 | static inline void next_ie(struct ieee80211_info_element **ie) | |
1626 | { | |
1627 | *ie = (struct ieee80211_info_element *)(&(*ie)->data[(*ie)->len]); | |
1628 | } | |
1629 | ||
1630 | /* Challenge is the challenge string (in TLV format) | |
1631 | we got with seq_nr 2 for shared secret authentication only and | |
1632 | send in seq_nr 3 WEP encrypted to prove we have the correct WEP key; | |
1633 | otherwise it is NULL */ | |
1634 | static int at76_auth_req(struct at76_priv *priv, struct bss_info *bss, | |
1635 | int seq_nr, struct ieee80211_info_element *challenge) | |
1636 | { | |
1637 | struct at76_tx_buffer *tx_buffer; | |
1638 | struct ieee80211_hdr_3addr *mgmt; | |
1639 | struct ieee80211_auth *req; | |
1640 | int buf_len = (seq_nr != 3 ? AUTH_FRAME_SIZE : | |
1641 | AUTH_FRAME_SIZE + 1 + 1 + challenge->len); | |
1642 | ||
1643 | BUG_ON(!bss); | |
1644 | BUG_ON(seq_nr == 3 && !challenge); | |
1645 | tx_buffer = kmalloc(buf_len + MAX_PADDING_SIZE, GFP_ATOMIC); | |
1646 | if (!tx_buffer) | |
1647 | return -ENOMEM; | |
1648 | ||
1649 | req = (struct ieee80211_auth *)tx_buffer->packet; | |
1650 | mgmt = &req->header; | |
1651 | ||
1652 | /* make wireless header */ | |
1653 | /* first auth msg is not encrypted, only the second (seq_nr == 3) */ | |
1654 | mgmt->frame_ctl = | |
1655 | cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH | | |
1656 | (seq_nr == 3 ? IEEE80211_FCTL_PROTECTED : 0)); | |
1657 | ||
1658 | mgmt->duration_id = cpu_to_le16(0x8000); | |
1659 | memcpy(mgmt->addr1, bss->bssid, ETH_ALEN); | |
1660 | memcpy(mgmt->addr2, priv->netdev->dev_addr, ETH_ALEN); | |
1661 | memcpy(mgmt->addr3, bss->bssid, ETH_ALEN); | |
1662 | mgmt->seq_ctl = cpu_to_le16(0); | |
1663 | ||
1664 | req->algorithm = cpu_to_le16(priv->auth_mode); | |
1665 | req->transaction = cpu_to_le16(seq_nr); | |
1666 | req->status = cpu_to_le16(0); | |
1667 | ||
1668 | if (seq_nr == 3) | |
1669 | memcpy(req->info_element, challenge, 1 + 1 + challenge->len); | |
1670 | ||
1671 | /* init. at76_priv tx header */ | |
1672 | tx_buffer->wlength = cpu_to_le16(buf_len - AT76_TX_HDRLEN); | |
1673 | at76_dbg(DBG_TX_MGMT, "%s: AuthReq bssid %s alg %d seq_nr %d", | |
1674 | priv->netdev->name, mac2str(mgmt->addr3), | |
1675 | le16_to_cpu(req->algorithm), le16_to_cpu(req->transaction)); | |
1676 | if (seq_nr == 3) | |
1677 | at76_dbg(DBG_TX_MGMT, "%s: AuthReq challenge: %s ...", | |
1678 | priv->netdev->name, hex2str(req->info_element, 18)); | |
1679 | ||
1680 | /* either send immediately (if no data tx is pending | |
1681 | or put it in pending list */ | |
1682 | return at76_tx_mgmt(priv, tx_buffer); | |
1683 | } | |
1684 | ||
1685 | static int at76_assoc_req(struct at76_priv *priv, struct bss_info *bss) | |
1686 | { | |
1687 | struct at76_tx_buffer *tx_buffer; | |
1688 | struct ieee80211_hdr_3addr *mgmt; | |
1689 | struct ieee80211_assoc_request *req; | |
1690 | struct ieee80211_info_element *ie; | |
1691 | char *essid; | |
1692 | int essid_len; | |
1693 | u16 capa; | |
1694 | ||
1695 | BUG_ON(!bss); | |
1696 | ||
1697 | tx_buffer = kmalloc(ASSOCREQ_MAX_SIZE + MAX_PADDING_SIZE, GFP_ATOMIC); | |
1698 | if (!tx_buffer) | |
1699 | return -ENOMEM; | |
1700 | ||
1701 | req = (struct ieee80211_assoc_request *)tx_buffer->packet; | |
1702 | mgmt = &req->header; | |
1703 | ie = req->info_element; | |
1704 | ||
1705 | /* make wireless header */ | |
1706 | mgmt->frame_ctl = cpu_to_le16(IEEE80211_FTYPE_MGMT | | |
1707 | IEEE80211_STYPE_ASSOC_REQ); | |
1708 | ||
1709 | mgmt->duration_id = cpu_to_le16(0x8000); | |
1710 | memcpy(mgmt->addr1, bss->bssid, ETH_ALEN); | |
1711 | memcpy(mgmt->addr2, priv->netdev->dev_addr, ETH_ALEN); | |
1712 | memcpy(mgmt->addr3, bss->bssid, ETH_ALEN); | |
1713 | mgmt->seq_ctl = cpu_to_le16(0); | |
1714 | ||
1715 | /* we must set the Privacy bit in the capabilities to assure an | |
1716 | Agere-based AP with optional WEP transmits encrypted frames | |
1717 | to us. AP only set the Privacy bit in their capabilities | |
1718 | if WEP is mandatory in the BSS! */ | |
1719 | capa = bss->capa; | |
1720 | if (priv->wep_enabled) | |
1721 | capa |= WLAN_CAPABILITY_PRIVACY; | |
1722 | if (priv->preamble_type != PREAMBLE_TYPE_LONG) | |
1723 | capa |= WLAN_CAPABILITY_SHORT_PREAMBLE; | |
1724 | req->capability = cpu_to_le16(capa); | |
1725 | ||
1726 | req->listen_interval = cpu_to_le16(2 * bss->beacon_interval); | |
1727 | ||
1728 | /* write TLV data elements */ | |
1729 | ||
f494b663 | 1730 | ie->id = WLAN_EID_SSID; |
89cb7e7f GKH |
1731 | ie->len = bss->ssid_len; |
1732 | memcpy(ie->data, bss->ssid, bss->ssid_len); | |
1733 | next_ie(&ie); | |
1734 | ||
f494b663 | 1735 | ie->id = WLAN_EID_SUPP_RATES; |
89cb7e7f GKH |
1736 | ie->len = sizeof(hw_rates); |
1737 | memcpy(ie->data, hw_rates, sizeof(hw_rates)); | |
1738 | next_ie(&ie); /* ie points behind the supp_rates field */ | |
1739 | ||
1740 | /* init. at76_priv tx header */ | |
1741 | tx_buffer->wlength = cpu_to_le16((u8 *)ie - (u8 *)mgmt); | |
1742 | ||
1743 | ie = req->info_element; | |
1744 | essid = ie->data; | |
1745 | essid_len = min_t(int, IW_ESSID_MAX_SIZE, ie->len); | |
1746 | ||
1747 | next_ie(&ie); /* points to IE of rates now */ | |
1748 | at76_dbg(DBG_TX_MGMT, | |
1749 | "%s: AssocReq bssid %s capa 0x%04x ssid %.*s rates %s", | |
1750 | priv->netdev->name, mac2str(mgmt->addr3), | |
1751 | le16_to_cpu(req->capability), essid_len, essid, | |
1752 | hex2str(ie->data, ie->len)); | |
1753 | ||
1754 | /* either send immediately (if no data tx is pending | |
1755 | or put it in pending list */ | |
1756 | return at76_tx_mgmt(priv, tx_buffer); | |
1757 | } | |
1758 | ||
1759 | /* We got to check the bss_list for old entries */ | |
1760 | static void at76_bss_list_timeout(unsigned long par) | |
1761 | { | |
1762 | struct at76_priv *priv = (struct at76_priv *)par; | |
1763 | unsigned long flags; | |
1764 | struct list_head *lptr, *nptr; | |
1765 | struct bss_info *ptr; | |
1766 | ||
1767 | spin_lock_irqsave(&priv->bss_list_spinlock, flags); | |
1768 | ||
1769 | list_for_each_safe(lptr, nptr, &priv->bss_list) { | |
1770 | ||
1771 | ptr = list_entry(lptr, struct bss_info, list); | |
1772 | ||
1773 | if (ptr != priv->curr_bss | |
1774 | && time_after(jiffies, ptr->last_rx + BSS_LIST_TIMEOUT)) { | |
1775 | at76_dbg(DBG_BSS_TABLE_RM, | |
1776 | "%s: bss_list: removing old BSS %s ch %d", | |
1777 | priv->netdev->name, mac2str(ptr->bssid), | |
1778 | ptr->channel); | |
1779 | list_del(&ptr->list); | |
1780 | kfree(ptr); | |
1781 | } | |
1782 | } | |
1783 | spin_unlock_irqrestore(&priv->bss_list_spinlock, flags); | |
1784 | /* restart the timer */ | |
1785 | mod_timer(&priv->bss_list_timer, jiffies + BSS_LIST_TIMEOUT); | |
1786 | } | |
1787 | ||
1788 | static inline void at76_set_mac_state(struct at76_priv *priv, | |
1789 | enum mac_state mac_state) | |
1790 | { | |
1791 | at76_dbg(DBG_MAC_STATE, "%s state: %s", priv->netdev->name, | |
1792 | mac_states[mac_state]); | |
1793 | priv->mac_state = mac_state; | |
1794 | } | |
1795 | ||
1796 | static void at76_dump_bss_table(struct at76_priv *priv) | |
1797 | { | |
1798 | struct bss_info *ptr; | |
1799 | unsigned long flags; | |
1800 | struct list_head *lptr; | |
1801 | ||
1802 | spin_lock_irqsave(&priv->bss_list_spinlock, flags); | |
1803 | ||
1804 | at76_dbg(DBG_BSS_TABLE, "%s BSS table (curr=%p):", priv->netdev->name, | |
1805 | priv->curr_bss); | |
1806 | ||
1807 | list_for_each(lptr, &priv->bss_list) { | |
1808 | ptr = list_entry(lptr, struct bss_info, list); | |
1809 | at76_dbg(DBG_BSS_TABLE, "0x%p: bssid %s channel %d ssid %.*s " | |
1810 | "(%s) capa 0x%04x rates %s rssi %d link %d noise %d", | |
1811 | ptr, mac2str(ptr->bssid), ptr->channel, ptr->ssid_len, | |
1812 | ptr->ssid, hex2str(ptr->ssid, ptr->ssid_len), | |
1813 | ptr->capa, hex2str(ptr->rates, ptr->rates_len), | |
1814 | ptr->rssi, ptr->link_qual, ptr->noise_level); | |
1815 | } | |
1816 | spin_unlock_irqrestore(&priv->bss_list_spinlock, flags); | |
1817 | } | |
1818 | ||
1819 | /* Called upon successful association to mark interface as connected */ | |
1820 | static void at76_work_assoc_done(struct work_struct *work) | |
1821 | { | |
1822 | struct at76_priv *priv = container_of(work, struct at76_priv, | |
1823 | work_assoc_done); | |
1824 | ||
1825 | mutex_lock(&priv->mtx); | |
1826 | ||
1827 | WARN_ON(priv->mac_state != MAC_ASSOC); | |
1828 | WARN_ON(!priv->curr_bss); | |
1829 | if (priv->mac_state != MAC_ASSOC || !priv->curr_bss) | |
1830 | goto exit; | |
1831 | ||
1832 | if (priv->iw_mode == IW_MODE_INFRA) { | |
1833 | if (priv->pm_mode != AT76_PM_OFF) { | |
1834 | /* calculate the listen interval in units of | |
1835 | beacon intervals of the curr_bss */ | |
1836 | u32 pm_period_beacon = (priv->pm_period >> 10) / | |
1837 | priv->curr_bss->beacon_interval; | |
1838 | ||
1839 | pm_period_beacon = max(pm_period_beacon, 2u); | |
1840 | pm_period_beacon = min(pm_period_beacon, 0xffffu); | |
1841 | ||
1842 | at76_dbg(DBG_PM, | |
1843 | "%s: pm_mode %d assoc id 0x%x listen int %d", | |
1844 | priv->netdev->name, priv->pm_mode, | |
1845 | priv->assoc_id, pm_period_beacon); | |
1846 | ||
1847 | at76_set_associd(priv, priv->assoc_id); | |
1848 | at76_set_listen_interval(priv, (u16)pm_period_beacon); | |
1849 | } | |
1850 | schedule_delayed_work(&priv->dwork_beacon, BEACON_TIMEOUT); | |
1851 | } | |
1852 | at76_set_pm_mode(priv); | |
1853 | ||
1854 | netif_carrier_on(priv->netdev); | |
1855 | netif_wake_queue(priv->netdev); | |
1856 | at76_set_mac_state(priv, MAC_CONNECTED); | |
1857 | at76_iwevent_bss_connect(priv->netdev, priv->curr_bss->bssid); | |
1858 | at76_dbg(DBG_PROGRESS, "%s: connected to BSSID %s", | |
1859 | priv->netdev->name, mac2str(priv->curr_bss->bssid)); | |
1860 | ||
1861 | exit: | |
1862 | mutex_unlock(&priv->mtx); | |
1863 | } | |
1864 | ||
1865 | /* We only store the new mac address in netdev struct, | |
1866 | it gets set when the netdev is opened. */ | |
1867 | static int at76_set_mac_address(struct net_device *netdev, void *addr) | |
1868 | { | |
1869 | struct sockaddr *mac = addr; | |
1870 | memcpy(netdev->dev_addr, mac->sa_data, ETH_ALEN); | |
1871 | return 1; | |
1872 | } | |
1873 | ||
1874 | static struct net_device_stats *at76_get_stats(struct net_device *netdev) | |
1875 | { | |
1876 | struct at76_priv *priv = netdev_priv(netdev); | |
1877 | return &priv->stats; | |
1878 | } | |
1879 | ||
1880 | static struct iw_statistics *at76_get_wireless_stats(struct net_device *netdev) | |
1881 | { | |
1882 | struct at76_priv *priv = netdev_priv(netdev); | |
1883 | ||
1884 | at76_dbg(DBG_IOCTL, "RETURN qual %d level %d noise %d updated %d", | |
1885 | priv->wstats.qual.qual, priv->wstats.qual.level, | |
1886 | priv->wstats.qual.noise, priv->wstats.qual.updated); | |
1887 | ||
1888 | return &priv->wstats; | |
1889 | } | |
1890 | ||
1891 | static void at76_set_multicast(struct net_device *netdev) | |
1892 | { | |
1893 | struct at76_priv *priv = netdev_priv(netdev); | |
1894 | int promisc; | |
1895 | ||
1896 | promisc = ((netdev->flags & IFF_PROMISC) != 0); | |
1897 | if (promisc != priv->promisc) { | |
1898 | /* This gets called in interrupt, must reschedule */ | |
1899 | priv->promisc = promisc; | |
1900 | schedule_work(&priv->work_set_promisc); | |
1901 | } | |
1902 | } | |
1903 | ||
1904 | /* Stop all network activity, flush all pending tasks */ | |
1905 | static void at76_quiesce(struct at76_priv *priv) | |
1906 | { | |
1907 | unsigned long flags; | |
1908 | ||
1909 | netif_stop_queue(priv->netdev); | |
1910 | netif_carrier_off(priv->netdev); | |
1911 | ||
1912 | at76_set_mac_state(priv, MAC_INIT); | |
1913 | ||
1914 | cancel_delayed_work(&priv->dwork_get_scan); | |
1915 | cancel_delayed_work(&priv->dwork_beacon); | |
1916 | cancel_delayed_work(&priv->dwork_auth); | |
1917 | cancel_delayed_work(&priv->dwork_assoc); | |
1918 | cancel_delayed_work(&priv->dwork_restart); | |
1919 | ||
1920 | spin_lock_irqsave(&priv->mgmt_spinlock, flags); | |
1921 | kfree(priv->next_mgmt_bulk); | |
1922 | priv->next_mgmt_bulk = NULL; | |
1923 | spin_unlock_irqrestore(&priv->mgmt_spinlock, flags); | |
1924 | } | |
1925 | ||
1926 | /******************************************************************************* | |
1927 | * at76_priv implementations of iw_handler functions: | |
1928 | */ | |
1929 | static int at76_iw_handler_commit(struct net_device *netdev, | |
1930 | struct iw_request_info *info, | |
1931 | void *null, char *extra) | |
1932 | { | |
1933 | struct at76_priv *priv = netdev_priv(netdev); | |
1934 | ||
1935 | at76_dbg(DBG_IOCTL, "%s %s: restarting the device", netdev->name, | |
1936 | __func__); | |
1937 | ||
1938 | if (priv->mac_state != MAC_INIT) | |
1939 | at76_quiesce(priv); | |
1940 | ||
1941 | /* Wait half second before the restart to process subsequent | |
1942 | * requests from the same iwconfig in a single restart */ | |
1943 | schedule_delayed_work(&priv->dwork_restart, HZ / 2); | |
1944 | ||
1945 | return 0; | |
1946 | } | |
1947 | ||
1948 | static int at76_iw_handler_get_name(struct net_device *netdev, | |
1949 | struct iw_request_info *info, | |
1950 | char *name, char *extra) | |
1951 | { | |
1952 | strcpy(name, "IEEE 802.11b"); | |
1953 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWNAME - name %s", netdev->name, name); | |
1954 | return 0; | |
1955 | } | |
1956 | ||
1957 | static int at76_iw_handler_set_freq(struct net_device *netdev, | |
1958 | struct iw_request_info *info, | |
1959 | struct iw_freq *freq, char *extra) | |
1960 | { | |
1961 | struct at76_priv *priv = netdev_priv(netdev); | |
1962 | int chan = -1; | |
1963 | int ret = -EIWCOMMIT; | |
1964 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWFREQ - freq.m %d freq.e %d", | |
1965 | netdev->name, freq->m, freq->e); | |
1966 | ||
1967 | if ((freq->e == 0) && (freq->m <= 1000)) | |
1968 | /* Setting by channel number */ | |
1969 | chan = freq->m; | |
1970 | else { | |
1971 | /* Setting by frequency - search the table */ | |
1972 | int mult = 1; | |
1973 | int i; | |
1974 | ||
1975 | for (i = 0; i < (6 - freq->e); i++) | |
1976 | mult *= 10; | |
1977 | ||
1978 | for (i = 0; i < NUM_CHANNELS; i++) { | |
1979 | if (freq->m == (channel_frequency[i] * mult)) | |
1980 | chan = i + 1; | |
1981 | } | |
1982 | } | |
1983 | ||
1984 | if (chan < 1 || !priv->domain) | |
1985 | /* non-positive channels are invalid | |
1986 | * we need a domain info to set the channel | |
1987 | * either that or an invalid frequency was | |
1988 | * provided by the user */ | |
1989 | ret = -EINVAL; | |
1990 | else if (!(priv->domain->channel_map & (1 << (chan - 1)))) { | |
1991 | printk(KERN_INFO "%s: channel %d not allowed for domain %s\n", | |
1992 | priv->netdev->name, chan, priv->domain->name); | |
1993 | ret = -EINVAL; | |
1994 | } | |
1995 | ||
1996 | if (ret == -EIWCOMMIT) { | |
1997 | priv->channel = chan; | |
1998 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWFREQ - ch %d", netdev->name, | |
1999 | chan); | |
2000 | } | |
2001 | ||
2002 | return ret; | |
2003 | } | |
2004 | ||
2005 | static int at76_iw_handler_get_freq(struct net_device *netdev, | |
2006 | struct iw_request_info *info, | |
2007 | struct iw_freq *freq, char *extra) | |
2008 | { | |
2009 | struct at76_priv *priv = netdev_priv(netdev); | |
2010 | ||
2011 | freq->m = priv->channel; | |
2012 | freq->e = 0; | |
2013 | ||
2014 | if (priv->channel) | |
2015 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWFREQ - freq %ld x 10e%d", | |
2016 | netdev->name, channel_frequency[priv->channel - 1], 6); | |
2017 | ||
2018 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWFREQ - ch %d", netdev->name, | |
2019 | priv->channel); | |
2020 | ||
2021 | return 0; | |
2022 | } | |
2023 | ||
2024 | static int at76_iw_handler_set_mode(struct net_device *netdev, | |
2025 | struct iw_request_info *info, | |
2026 | __u32 *mode, char *extra) | |
2027 | { | |
2028 | struct at76_priv *priv = netdev_priv(netdev); | |
2029 | ||
2030 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWMODE - %d", netdev->name, *mode); | |
2031 | ||
2032 | if ((*mode != IW_MODE_ADHOC) && (*mode != IW_MODE_INFRA) && | |
2033 | (*mode != IW_MODE_MONITOR)) | |
2034 | return -EINVAL; | |
2035 | ||
2036 | priv->iw_mode = *mode; | |
2037 | if (priv->iw_mode != IW_MODE_INFRA) | |
2038 | priv->pm_mode = AT76_PM_OFF; | |
2039 | ||
2040 | return -EIWCOMMIT; | |
2041 | } | |
2042 | ||
2043 | static int at76_iw_handler_get_mode(struct net_device *netdev, | |
2044 | struct iw_request_info *info, | |
2045 | __u32 *mode, char *extra) | |
2046 | { | |
2047 | struct at76_priv *priv = netdev_priv(netdev); | |
2048 | ||
2049 | *mode = priv->iw_mode; | |
2050 | ||
2051 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWMODE - %d", netdev->name, *mode); | |
2052 | ||
2053 | return 0; | |
2054 | } | |
2055 | ||
2056 | static int at76_iw_handler_get_range(struct net_device *netdev, | |
2057 | struct iw_request_info *info, | |
2058 | struct iw_point *data, char *extra) | |
2059 | { | |
2060 | /* inspired by atmel.c */ | |
2061 | struct at76_priv *priv = netdev_priv(netdev); | |
2062 | struct iw_range *range = (struct iw_range *)extra; | |
2063 | int i; | |
2064 | ||
2065 | data->length = sizeof(struct iw_range); | |
2066 | memset(range, 0, sizeof(struct iw_range)); | |
2067 | ||
2068 | /* TODO: range->throughput = xxxxxx; */ | |
2069 | ||
2070 | range->min_nwid = 0x0000; | |
2071 | range->max_nwid = 0x0000; | |
2072 | ||
2073 | /* this driver doesn't maintain sensitivity information */ | |
2074 | range->sensitivity = 0; | |
2075 | ||
2076 | range->max_qual.qual = 100; | |
2077 | range->max_qual.level = 100; | |
2078 | range->max_qual.noise = 0; | |
2079 | range->max_qual.updated = IW_QUAL_NOISE_INVALID; | |
2080 | ||
2081 | range->avg_qual.qual = 50; | |
2082 | range->avg_qual.level = 50; | |
2083 | range->avg_qual.noise = 0; | |
2084 | range->avg_qual.updated = IW_QUAL_NOISE_INVALID; | |
2085 | ||
2086 | range->bitrate[0] = 1000000; | |
2087 | range->bitrate[1] = 2000000; | |
2088 | range->bitrate[2] = 5500000; | |
2089 | range->bitrate[3] = 11000000; | |
2090 | range->num_bitrates = 4; | |
2091 | ||
2092 | range->min_rts = 0; | |
2093 | range->max_rts = MAX_RTS_THRESHOLD; | |
2094 | ||
2095 | range->min_frag = MIN_FRAG_THRESHOLD; | |
2096 | range->max_frag = MAX_FRAG_THRESHOLD; | |
2097 | ||
2098 | range->pmp_flags = IW_POWER_PERIOD; | |
2099 | range->pmt_flags = IW_POWER_ON; | |
2100 | range->pm_capa = IW_POWER_PERIOD | IW_POWER_ALL_R; | |
2101 | ||
2102 | range->encoding_size[0] = WEP_SMALL_KEY_LEN; | |
2103 | range->encoding_size[1] = WEP_LARGE_KEY_LEN; | |
2104 | range->num_encoding_sizes = 2; | |
2105 | range->max_encoding_tokens = WEP_KEYS; | |
2106 | ||
2107 | /* both WL-240U and Linksys WUSB11 v2.6 specify 15 dBm as output power | |
2108 | - take this for all (ignore antenna gains) */ | |
2109 | range->txpower[0] = 15; | |
2110 | range->num_txpower = 1; | |
2111 | range->txpower_capa = IW_TXPOW_DBM; | |
2112 | ||
2113 | range->we_version_source = WIRELESS_EXT; | |
2114 | range->we_version_compiled = WIRELESS_EXT; | |
2115 | ||
2116 | /* same as the values used in atmel.c */ | |
2117 | range->retry_capa = IW_RETRY_LIMIT; | |
2118 | range->retry_flags = IW_RETRY_LIMIT; | |
2119 | range->r_time_flags = 0; | |
2120 | range->min_retry = 1; | |
2121 | range->max_retry = 255; | |
2122 | ||
2123 | range->num_channels = NUM_CHANNELS; | |
2124 | range->num_frequency = 0; | |
2125 | ||
2126 | for (i = 0; i < NUM_CHANNELS; i++) { | |
2127 | /* test if channel map bit is raised */ | |
2128 | if (priv->domain->channel_map & (0x1 << i)) { | |
2129 | range->num_frequency += 1; | |
2130 | ||
2131 | range->freq[i].i = i + 1; | |
2132 | range->freq[i].m = channel_frequency[i] * 100000; | |
2133 | range->freq[i].e = 1; /* freq * 10^1 */ | |
2134 | } | |
2135 | } | |
2136 | ||
2137 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWRANGE", netdev->name); | |
2138 | ||
2139 | return 0; | |
2140 | } | |
2141 | ||
2142 | static int at76_iw_handler_set_spy(struct net_device *netdev, | |
2143 | struct iw_request_info *info, | |
2144 | struct iw_point *data, char *extra) | |
2145 | { | |
2146 | struct at76_priv *priv = netdev_priv(netdev); | |
2147 | int ret = 0; | |
2148 | ||
2149 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWSPY - number of addresses %d", | |
2150 | netdev->name, data->length); | |
2151 | ||
2152 | spin_lock_bh(&priv->spy_spinlock); | |
2153 | ret = iw_handler_set_spy(priv->netdev, info, (union iwreq_data *)data, | |
2154 | extra); | |
2155 | spin_unlock_bh(&priv->spy_spinlock); | |
2156 | ||
2157 | return ret; | |
2158 | } | |
2159 | ||
2160 | static int at76_iw_handler_get_spy(struct net_device *netdev, | |
2161 | struct iw_request_info *info, | |
2162 | struct iw_point *data, char *extra) | |
2163 | { | |
2164 | ||
2165 | struct at76_priv *priv = netdev_priv(netdev); | |
2166 | int ret = 0; | |
2167 | ||
2168 | spin_lock_bh(&priv->spy_spinlock); | |
2169 | ret = iw_handler_get_spy(priv->netdev, info, | |
2170 | (union iwreq_data *)data, extra); | |
2171 | spin_unlock_bh(&priv->spy_spinlock); | |
2172 | ||
2173 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWSPY - number of addresses %d", | |
2174 | netdev->name, data->length); | |
2175 | ||
2176 | return ret; | |
2177 | } | |
2178 | ||
2179 | static int at76_iw_handler_set_thrspy(struct net_device *netdev, | |
2180 | struct iw_request_info *info, | |
2181 | struct iw_point *data, char *extra) | |
2182 | { | |
2183 | struct at76_priv *priv = netdev_priv(netdev); | |
2184 | int ret; | |
2185 | ||
2186 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWTHRSPY - number of addresses %d)", | |
2187 | netdev->name, data->length); | |
2188 | ||
2189 | spin_lock_bh(&priv->spy_spinlock); | |
2190 | ret = iw_handler_set_thrspy(netdev, info, (union iwreq_data *)data, | |
2191 | extra); | |
2192 | spin_unlock_bh(&priv->spy_spinlock); | |
2193 | ||
2194 | return ret; | |
2195 | } | |
2196 | ||
2197 | static int at76_iw_handler_get_thrspy(struct net_device *netdev, | |
2198 | struct iw_request_info *info, | |
2199 | struct iw_point *data, char *extra) | |
2200 | { | |
2201 | struct at76_priv *priv = netdev_priv(netdev); | |
2202 | int ret; | |
2203 | ||
2204 | spin_lock_bh(&priv->spy_spinlock); | |
2205 | ret = iw_handler_get_thrspy(netdev, info, (union iwreq_data *)data, | |
2206 | extra); | |
2207 | spin_unlock_bh(&priv->spy_spinlock); | |
2208 | ||
2209 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWTHRSPY - number of addresses %d)", | |
2210 | netdev->name, data->length); | |
2211 | ||
2212 | return ret; | |
2213 | } | |
2214 | ||
2215 | static int at76_iw_handler_set_wap(struct net_device *netdev, | |
2216 | struct iw_request_info *info, | |
2217 | struct sockaddr *ap_addr, char *extra) | |
2218 | { | |
2219 | struct at76_priv *priv = netdev_priv(netdev); | |
2220 | ||
2221 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWAP - wap/bssid %s", netdev->name, | |
2222 | mac2str(ap_addr->sa_data)); | |
2223 | ||
2224 | /* if the incoming address == ff:ff:ff:ff:ff:ff, the user has | |
2225 | chosen any or auto AP preference */ | |
2226 | if (is_broadcast_ether_addr(ap_addr->sa_data) | |
2227 | || is_zero_ether_addr(ap_addr->sa_data)) | |
2228 | priv->wanted_bssid_valid = 0; | |
2229 | else { | |
2230 | /* user wants to set a preferred AP address */ | |
2231 | priv->wanted_bssid_valid = 1; | |
2232 | memcpy(priv->wanted_bssid, ap_addr->sa_data, ETH_ALEN); | |
2233 | } | |
2234 | ||
2235 | return -EIWCOMMIT; | |
2236 | } | |
2237 | ||
2238 | static int at76_iw_handler_get_wap(struct net_device *netdev, | |
2239 | struct iw_request_info *info, | |
2240 | struct sockaddr *ap_addr, char *extra) | |
2241 | { | |
2242 | struct at76_priv *priv = netdev_priv(netdev); | |
2243 | ||
2244 | ap_addr->sa_family = ARPHRD_ETHER; | |
2245 | memcpy(ap_addr->sa_data, priv->bssid, ETH_ALEN); | |
2246 | ||
2247 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWAP - wap/bssid %s", netdev->name, | |
2248 | mac2str(ap_addr->sa_data)); | |
2249 | ||
2250 | return 0; | |
2251 | } | |
2252 | ||
2253 | static int at76_iw_handler_set_scan(struct net_device *netdev, | |
2254 | struct iw_request_info *info, | |
2255 | union iwreq_data *wrqu, char *extra) | |
2256 | { | |
2257 | struct at76_priv *priv = netdev_priv(netdev); | |
2258 | int ret = 0; | |
2259 | ||
2260 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWSCAN", netdev->name); | |
2261 | ||
2262 | if (mutex_lock_interruptible(&priv->mtx)) | |
2263 | return -EINTR; | |
2264 | ||
2265 | if (!netif_running(netdev)) { | |
2266 | ret = -ENETDOWN; | |
2267 | goto exit; | |
2268 | } | |
2269 | ||
2270 | /* jal: we don't allow "iwlist ethX scan" while we are | |
2271 | in monitor mode */ | |
2272 | if (priv->iw_mode == IW_MODE_MONITOR) { | |
2273 | ret = -EBUSY; | |
2274 | goto exit; | |
2275 | } | |
2276 | ||
2277 | /* Discard old scan results */ | |
2278 | if ((jiffies - priv->last_scan) > (20 * HZ)) | |
2279 | priv->scan_state = SCAN_IDLE; | |
2280 | priv->last_scan = jiffies; | |
2281 | ||
2282 | /* Initiate a scan command */ | |
2283 | if (priv->scan_state == SCAN_IN_PROGRESS) { | |
2284 | ret = -EBUSY; | |
2285 | goto exit; | |
2286 | } | |
2287 | ||
2288 | priv->scan_state = SCAN_IN_PROGRESS; | |
2289 | ||
2290 | at76_quiesce(priv); | |
2291 | ||
2292 | /* Try to do passive or active scan if WE asks as. */ | |
2293 | if (wrqu->data.length | |
2294 | && wrqu->data.length == sizeof(struct iw_scan_req)) { | |
2295 | struct iw_scan_req *req = (struct iw_scan_req *)extra; | |
2296 | ||
2297 | if (req->scan_type == IW_SCAN_TYPE_PASSIVE) | |
2298 | priv->scan_mode = SCAN_TYPE_PASSIVE; | |
2299 | else if (req->scan_type == IW_SCAN_TYPE_ACTIVE) | |
2300 | priv->scan_mode = SCAN_TYPE_ACTIVE; | |
2301 | ||
2302 | /* Sanity check values? */ | |
2303 | if (req->min_channel_time > 0) | |
2304 | priv->scan_min_time = req->min_channel_time; | |
2305 | ||
2306 | if (req->max_channel_time > 0) | |
2307 | priv->scan_max_time = req->max_channel_time; | |
2308 | } | |
2309 | ||
2310 | /* change to scanning state */ | |
2311 | at76_set_mac_state(priv, MAC_SCANNING); | |
2312 | schedule_work(&priv->work_start_scan); | |
2313 | ||
2314 | exit: | |
2315 | mutex_unlock(&priv->mtx); | |
2316 | return ret; | |
2317 | } | |
2318 | ||
2319 | static int at76_iw_handler_get_scan(struct net_device *netdev, | |
2320 | struct iw_request_info *info, | |
2321 | struct iw_point *data, char *extra) | |
2322 | { | |
2323 | struct at76_priv *priv = netdev_priv(netdev); | |
2324 | unsigned long flags; | |
2325 | struct list_head *lptr, *nptr; | |
2326 | struct bss_info *curr_bss; | |
2327 | struct iw_event *iwe = kmalloc(sizeof(struct iw_event), GFP_KERNEL); | |
2328 | char *curr_val, *curr_pos = extra; | |
2329 | int i; | |
2330 | ||
2331 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWSCAN", netdev->name); | |
2332 | ||
2333 | if (!iwe) | |
2334 | return -ENOMEM; | |
2335 | ||
2336 | if (priv->scan_state != SCAN_COMPLETED) { | |
2337 | /* scan not yet finished */ | |
2338 | kfree(iwe); | |
2339 | return -EAGAIN; | |
2340 | } | |
2341 | ||
2342 | spin_lock_irqsave(&priv->bss_list_spinlock, flags); | |
2343 | ||
2344 | list_for_each_safe(lptr, nptr, &priv->bss_list) { | |
2345 | curr_bss = list_entry(lptr, struct bss_info, list); | |
2346 | ||
2347 | iwe->cmd = SIOCGIWAP; | |
2348 | iwe->u.ap_addr.sa_family = ARPHRD_ETHER; | |
2349 | memcpy(iwe->u.ap_addr.sa_data, curr_bss->bssid, 6); | |
2350 | curr_pos = iwe_stream_add_event(info, curr_pos, | |
2351 | extra + IW_SCAN_MAX_DATA, iwe, | |
2352 | IW_EV_ADDR_LEN); | |
2353 | ||
2354 | iwe->u.data.length = curr_bss->ssid_len; | |
2355 | iwe->cmd = SIOCGIWESSID; | |
2356 | iwe->u.data.flags = 1; | |
2357 | ||
2358 | curr_pos = iwe_stream_add_point(info, curr_pos, | |
2359 | extra + IW_SCAN_MAX_DATA, iwe, | |
2360 | curr_bss->ssid); | |
2361 | ||
2362 | iwe->cmd = SIOCGIWMODE; | |
2363 | iwe->u.mode = (curr_bss->capa & WLAN_CAPABILITY_IBSS) ? | |
2364 | IW_MODE_ADHOC : | |
2365 | (curr_bss->capa & WLAN_CAPABILITY_ESS) ? | |
2366 | IW_MODE_MASTER : IW_MODE_AUTO; | |
2367 | /* IW_MODE_AUTO = 0 which I thought is | |
2368 | * the most logical value to return in this case */ | |
2369 | curr_pos = iwe_stream_add_event(info, curr_pos, | |
2370 | extra + IW_SCAN_MAX_DATA, iwe, | |
2371 | IW_EV_UINT_LEN); | |
2372 | ||
2373 | iwe->cmd = SIOCGIWFREQ; | |
2374 | iwe->u.freq.m = curr_bss->channel; | |
2375 | iwe->u.freq.e = 0; | |
2376 | curr_pos = iwe_stream_add_event(info, curr_pos, | |
2377 | extra + IW_SCAN_MAX_DATA, iwe, | |
2378 | IW_EV_FREQ_LEN); | |
2379 | ||
2380 | iwe->cmd = SIOCGIWENCODE; | |
2381 | if (curr_bss->capa & WLAN_CAPABILITY_PRIVACY) | |
2382 | iwe->u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY; | |
2383 | else | |
2384 | iwe->u.data.flags = IW_ENCODE_DISABLED; | |
2385 | ||
2386 | iwe->u.data.length = 0; | |
2387 | curr_pos = iwe_stream_add_point(info, curr_pos, | |
2388 | extra + IW_SCAN_MAX_DATA, iwe, | |
2389 | NULL); | |
2390 | ||
2391 | /* Add quality statistics */ | |
2392 | iwe->cmd = IWEVQUAL; | |
2393 | iwe->u.qual.noise = 0; | |
2394 | iwe->u.qual.updated = | |
2395 | IW_QUAL_NOISE_INVALID | IW_QUAL_LEVEL_UPDATED; | |
2396 | iwe->u.qual.level = (curr_bss->rssi * 100 / 42); | |
2397 | if (iwe->u.qual.level > 100) | |
2398 | iwe->u.qual.level = 100; | |
2399 | if (at76_is_intersil(priv->board_type)) | |
2400 | iwe->u.qual.qual = curr_bss->link_qual; | |
2401 | else { | |
2402 | iwe->u.qual.qual = 0; | |
2403 | iwe->u.qual.updated |= IW_QUAL_QUAL_INVALID; | |
2404 | } | |
2405 | /* Add new value to event */ | |
2406 | curr_pos = iwe_stream_add_event(info, curr_pos, | |
2407 | extra + IW_SCAN_MAX_DATA, iwe, | |
2408 | IW_EV_QUAL_LEN); | |
2409 | ||
2410 | /* Rate: stuffing multiple values in a single event requires | |
2411 | * a bit more of magic - Jean II */ | |
2412 | curr_val = curr_pos + IW_EV_LCP_LEN; | |
2413 | ||
2414 | iwe->cmd = SIOCGIWRATE; | |
2415 | /* Those two flags are ignored... */ | |
2416 | iwe->u.bitrate.fixed = 0; | |
2417 | iwe->u.bitrate.disabled = 0; | |
2418 | /* Max 8 values */ | |
2419 | for (i = 0; i < curr_bss->rates_len; i++) { | |
2420 | /* Bit rate given in 500 kb/s units (+ 0x80) */ | |
2421 | iwe->u.bitrate.value = | |
2422 | ((curr_bss->rates[i] & 0x7f) * 500000); | |
2423 | /* Add new value to event */ | |
2424 | curr_val = iwe_stream_add_value(info, curr_pos, | |
2425 | curr_val, | |
2426 | extra + | |
2427 | IW_SCAN_MAX_DATA, iwe, | |
2428 | IW_EV_PARAM_LEN); | |
2429 | } | |
2430 | ||
2431 | /* Check if we added any event */ | |
2432 | if ((curr_val - curr_pos) > IW_EV_LCP_LEN) | |
2433 | curr_pos = curr_val; | |
2434 | ||
2435 | /* more information may be sent back using IWECUSTOM */ | |
2436 | ||
2437 | } | |
2438 | ||
2439 | spin_unlock_irqrestore(&priv->bss_list_spinlock, flags); | |
2440 | ||
2441 | data->length = (curr_pos - extra); | |
2442 | data->flags = 0; | |
2443 | ||
2444 | kfree(iwe); | |
2445 | return 0; | |
2446 | } | |
2447 | ||
2448 | static int at76_iw_handler_set_essid(struct net_device *netdev, | |
2449 | struct iw_request_info *info, | |
2450 | struct iw_point *data, char *extra) | |
2451 | { | |
2452 | struct at76_priv *priv = netdev_priv(netdev); | |
2453 | ||
2454 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWESSID - %s", netdev->name, extra); | |
2455 | ||
2456 | if (data->flags) { | |
2457 | memcpy(priv->essid, extra, data->length); | |
2458 | priv->essid_size = data->length; | |
2459 | } else | |
2460 | priv->essid_size = 0; /* Use any SSID */ | |
2461 | ||
2462 | return -EIWCOMMIT; | |
2463 | } | |
2464 | ||
2465 | static int at76_iw_handler_get_essid(struct net_device *netdev, | |
2466 | struct iw_request_info *info, | |
2467 | struct iw_point *data, char *extra) | |
2468 | { | |
2469 | struct at76_priv *priv = netdev_priv(netdev); | |
2470 | ||
2471 | if (priv->essid_size) { | |
2472 | /* not the ANY ssid in priv->essid */ | |
2473 | data->flags = 1; | |
2474 | data->length = priv->essid_size; | |
2475 | memcpy(extra, priv->essid, data->length); | |
2476 | } else { | |
2477 | /* the ANY ssid was specified */ | |
2478 | if (priv->mac_state == MAC_CONNECTED && priv->curr_bss) { | |
2479 | /* report the SSID we have found */ | |
2480 | data->flags = 1; | |
2481 | data->length = priv->curr_bss->ssid_len; | |
2482 | memcpy(extra, priv->curr_bss->ssid, data->length); | |
2483 | } else { | |
2484 | /* report ANY back */ | |
2485 | data->flags = 0; | |
2486 | data->length = 0; | |
2487 | } | |
2488 | } | |
2489 | ||
2490 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWESSID - %.*s", netdev->name, | |
2491 | data->length, extra); | |
2492 | ||
2493 | return 0; | |
2494 | } | |
2495 | ||
2496 | static int at76_iw_handler_set_rate(struct net_device *netdev, | |
2497 | struct iw_request_info *info, | |
2498 | struct iw_param *bitrate, char *extra) | |
2499 | { | |
2500 | struct at76_priv *priv = netdev_priv(netdev); | |
2501 | int ret = -EIWCOMMIT; | |
2502 | ||
2503 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWRATE - %d", netdev->name, | |
2504 | bitrate->value); | |
2505 | ||
2506 | switch (bitrate->value) { | |
2507 | case -1: | |
2508 | priv->txrate = TX_RATE_AUTO; | |
2509 | break; /* auto rate */ | |
2510 | case 1000000: | |
2511 | priv->txrate = TX_RATE_1MBIT; | |
2512 | break; | |
2513 | case 2000000: | |
2514 | priv->txrate = TX_RATE_2MBIT; | |
2515 | break; | |
2516 | case 5500000: | |
2517 | priv->txrate = TX_RATE_5_5MBIT; | |
2518 | break; | |
2519 | case 11000000: | |
2520 | priv->txrate = TX_RATE_11MBIT; | |
2521 | break; | |
2522 | default: | |
2523 | ret = -EINVAL; | |
2524 | } | |
2525 | ||
2526 | return ret; | |
2527 | } | |
2528 | ||
2529 | static int at76_iw_handler_get_rate(struct net_device *netdev, | |
2530 | struct iw_request_info *info, | |
2531 | struct iw_param *bitrate, char *extra) | |
2532 | { | |
2533 | struct at76_priv *priv = netdev_priv(netdev); | |
2534 | int ret = 0; | |
2535 | ||
2536 | switch (priv->txrate) { | |
2537 | /* return max rate if RATE_AUTO */ | |
2538 | case TX_RATE_AUTO: | |
2539 | bitrate->value = 11000000; | |
2540 | break; | |
2541 | case TX_RATE_1MBIT: | |
2542 | bitrate->value = 1000000; | |
2543 | break; | |
2544 | case TX_RATE_2MBIT: | |
2545 | bitrate->value = 2000000; | |
2546 | break; | |
2547 | case TX_RATE_5_5MBIT: | |
2548 | bitrate->value = 5500000; | |
2549 | break; | |
2550 | case TX_RATE_11MBIT: | |
2551 | bitrate->value = 11000000; | |
2552 | break; | |
2553 | default: | |
2554 | ret = -EINVAL; | |
2555 | } | |
2556 | ||
2557 | bitrate->fixed = (priv->txrate != TX_RATE_AUTO); | |
2558 | bitrate->disabled = 0; | |
2559 | ||
2560 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWRATE - %d", netdev->name, | |
2561 | bitrate->value); | |
2562 | ||
2563 | return ret; | |
2564 | } | |
2565 | ||
2566 | static int at76_iw_handler_set_rts(struct net_device *netdev, | |
2567 | struct iw_request_info *info, | |
2568 | struct iw_param *rts, char *extra) | |
2569 | { | |
2570 | struct at76_priv *priv = netdev_priv(netdev); | |
2571 | int ret = -EIWCOMMIT; | |
2572 | int rthr = rts->value; | |
2573 | ||
2574 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWRTS - value %d disabled %s", | |
2575 | netdev->name, rts->value, (rts->disabled) ? "true" : "false"); | |
2576 | ||
2577 | if (rts->disabled) | |
2578 | rthr = MAX_RTS_THRESHOLD; | |
2579 | ||
2580 | if ((rthr < 0) || (rthr > MAX_RTS_THRESHOLD)) | |
2581 | ret = -EINVAL; | |
2582 | else | |
2583 | priv->rts_threshold = rthr; | |
2584 | ||
2585 | return ret; | |
2586 | } | |
2587 | ||
2588 | static int at76_iw_handler_get_rts(struct net_device *netdev, | |
2589 | struct iw_request_info *info, | |
2590 | struct iw_param *rts, char *extra) | |
2591 | { | |
2592 | struct at76_priv *priv = netdev_priv(netdev); | |
2593 | ||
2594 | rts->value = priv->rts_threshold; | |
2595 | rts->disabled = (rts->value >= MAX_RTS_THRESHOLD); | |
2596 | rts->fixed = 1; | |
2597 | ||
2598 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWRTS - value %d disabled %s", | |
2599 | netdev->name, rts->value, (rts->disabled) ? "true" : "false"); | |
2600 | ||
2601 | return 0; | |
2602 | } | |
2603 | ||
2604 | static int at76_iw_handler_set_frag(struct net_device *netdev, | |
2605 | struct iw_request_info *info, | |
2606 | struct iw_param *frag, char *extra) | |
2607 | { | |
2608 | struct at76_priv *priv = netdev_priv(netdev); | |
2609 | int ret = -EIWCOMMIT; | |
2610 | int fthr = frag->value; | |
2611 | ||
2612 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWFRAG - value %d, disabled %s", | |
2613 | netdev->name, frag->value, | |
2614 | (frag->disabled) ? "true" : "false"); | |
2615 | ||
2616 | if (frag->disabled) | |
2617 | fthr = MAX_FRAG_THRESHOLD; | |
2618 | ||
2619 | if ((fthr < MIN_FRAG_THRESHOLD) || (fthr > MAX_FRAG_THRESHOLD)) | |
2620 | ret = -EINVAL; | |
2621 | else | |
2622 | priv->frag_threshold = fthr & ~0x1; /* get an even value */ | |
2623 | ||
2624 | return ret; | |
2625 | } | |
2626 | ||
2627 | static int at76_iw_handler_get_frag(struct net_device *netdev, | |
2628 | struct iw_request_info *info, | |
2629 | struct iw_param *frag, char *extra) | |
2630 | { | |
2631 | struct at76_priv *priv = netdev_priv(netdev); | |
2632 | ||
2633 | frag->value = priv->frag_threshold; | |
2634 | frag->disabled = (frag->value >= MAX_FRAG_THRESHOLD); | |
2635 | frag->fixed = 1; | |
2636 | ||
2637 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWFRAG - value %d, disabled %s", | |
2638 | netdev->name, frag->value, | |
2639 | (frag->disabled) ? "true" : "false"); | |
2640 | ||
2641 | return 0; | |
2642 | } | |
2643 | ||
2644 | static int at76_iw_handler_get_txpow(struct net_device *netdev, | |
2645 | struct iw_request_info *info, | |
2646 | struct iw_param *power, char *extra) | |
2647 | { | |
2648 | power->value = 15; | |
2649 | power->fixed = 1; /* No power control */ | |
2650 | power->disabled = 0; | |
2651 | power->flags = IW_TXPOW_DBM; | |
2652 | ||
2653 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWTXPOW - txpow %d dBm", netdev->name, | |
2654 | power->value); | |
2655 | ||
2656 | return 0; | |
2657 | } | |
2658 | ||
2659 | /* jal: short retry is handled by the firmware (at least 0.90.x), | |
2660 | while long retry is not (?) */ | |
2661 | static int at76_iw_handler_set_retry(struct net_device *netdev, | |
2662 | struct iw_request_info *info, | |
2663 | struct iw_param *retry, char *extra) | |
2664 | { | |
2665 | struct at76_priv *priv = netdev_priv(netdev); | |
2666 | int ret = -EIWCOMMIT; | |
2667 | ||
2668 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWRETRY disabled %d flags 0x%x val %d", | |
2669 | netdev->name, retry->disabled, retry->flags, retry->value); | |
2670 | ||
2671 | if (!retry->disabled && (retry->flags & IW_RETRY_LIMIT)) { | |
2672 | if ((retry->flags & IW_RETRY_MIN) || | |
2673 | !(retry->flags & IW_RETRY_MAX)) | |
2674 | priv->short_retry_limit = retry->value; | |
2675 | else | |
2676 | ret = -EINVAL; | |
2677 | } else | |
2678 | ret = -EINVAL; | |
2679 | ||
2680 | return ret; | |
2681 | } | |
2682 | ||
2683 | /* Adapted (ripped) from atmel.c */ | |
2684 | static int at76_iw_handler_get_retry(struct net_device *netdev, | |
2685 | struct iw_request_info *info, | |
2686 | struct iw_param *retry, char *extra) | |
2687 | { | |
2688 | struct at76_priv *priv = netdev_priv(netdev); | |
2689 | ||
2690 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWRETRY", netdev->name); | |
2691 | ||
2692 | retry->disabled = 0; /* Can't be disabled */ | |
2693 | retry->flags = IW_RETRY_LIMIT; | |
2694 | retry->value = priv->short_retry_limit; | |
2695 | ||
2696 | return 0; | |
2697 | } | |
2698 | ||
2699 | static int at76_iw_handler_set_encode(struct net_device *netdev, | |
2700 | struct iw_request_info *info, | |
2701 | struct iw_point *encoding, char *extra) | |
2702 | { | |
2703 | struct at76_priv *priv = netdev_priv(netdev); | |
2704 | int index = (encoding->flags & IW_ENCODE_INDEX) - 1; | |
2705 | int len = encoding->length; | |
2706 | ||
2707 | at76_dbg(DBG_IOCTL, "%s: SIOCSIWENCODE - enc.flags %08x " | |
2708 | "pointer %p len %d", netdev->name, encoding->flags, | |
2709 | encoding->pointer, encoding->length); | |
2710 | at76_dbg(DBG_IOCTL, | |
2711 | "%s: SIOCSIWENCODE - old wepstate: enabled %s key_id %d " | |
2712 | "auth_mode %s", netdev->name, | |
2713 | (priv->wep_enabled) ? "true" : "false", priv->wep_key_id, | |
2714 | (priv->auth_mode == | |
2715 | WLAN_AUTH_SHARED_KEY) ? "restricted" : "open"); | |
2716 | ||
2717 | /* take the old default key if index is invalid */ | |
2718 | if ((index < 0) || (index >= WEP_KEYS)) | |
2719 | index = priv->wep_key_id; | |
2720 | ||
2721 | if (len > 0) { | |
2722 | if (len > WEP_LARGE_KEY_LEN) | |
2723 | len = WEP_LARGE_KEY_LEN; | |
2724 | ||
2725 | memset(priv->wep_keys[index], 0, WEP_KEY_LEN); | |
2726 | memcpy(priv->wep_keys[index], extra, len); | |
2727 | priv->wep_keys_len[index] = (len <= WEP_SMALL_KEY_LEN) ? | |
2728 | WEP_SMALL_KEY_LEN : WEP_LARGE_KEY_LEN; | |
2729 | priv->wep_enabled = 1; | |
2730 | } | |
2731 | ||
2732 | priv->wep_key_id = index; | |
2733 | priv->wep_enabled = ((encoding->flags & IW_ENCODE_DISABLED) == 0); | |
2734 | ||
2735 | if (encoding->flags & IW_ENCODE_RESTRICTED) | |
2736 | priv->auth_mode = WLAN_AUTH_SHARED_KEY; | |
2737 | if (encoding->flags & IW_ENCODE_OPEN) | |
2738 | priv->auth_mode = WLAN_AUTH_OPEN; | |
2739 | ||
2740 | at76_dbg(DBG_IOCTL, | |
2741 | "%s: SIOCSIWENCODE - new wepstate: enabled %s key_id %d " | |
2742 | "key_len %d auth_mode %s", netdev->name, | |
2743 | (priv->wep_enabled) ? "true" : "false", priv->wep_key_id + 1, | |
2744 | priv->wep_keys_len[priv->wep_key_id], | |
2745 | (priv->auth_mode == | |
2746 | WLAN_AUTH_SHARED_KEY) ? "restricted" : "open"); | |
2747 | ||
2748 | return -EIWCOMMIT; | |
2749 | } | |
2750 | ||
2751 | static int at76_iw_handler_get_encode(struct net_device *netdev, | |
2752 | struct iw_request_info *info, | |
2753 | struct iw_point *encoding, char *extra) | |
2754 | { | |
2755 | struct at76_priv *priv = netdev_priv(netdev); | |
2756 | int index = (encoding->flags & IW_ENCODE_INDEX) - 1; | |
2757 | ||
2758 | if ((index < 0) || (index >= WEP_KEYS)) | |
2759 | index = priv->wep_key_id; | |
2760 | ||
2761 | encoding->flags = | |
2762 | (priv->auth_mode == WLAN_AUTH_SHARED_KEY) ? | |
2763 | IW_ENCODE_RESTRICTED : IW_ENCODE_OPEN; | |
2764 | ||
2765 | if (!priv->wep_enabled) | |
2766 | encoding->flags |= IW_ENCODE_DISABLED; | |
2767 | ||
2768 | if (encoding->pointer) { | |
2769 | encoding->length = priv->wep_keys_len[index]; | |
2770 | ||
2771 | memcpy(extra, priv->wep_keys[index], priv->wep_keys_len[index]); | |
2772 | ||
2773 | encoding->flags |= (index + 1); | |
2774 | } | |
2775 | ||
2776 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWENCODE - enc.flags %08x " | |
2777 | "pointer %p len %d", netdev->name, encoding->flags, | |
2778 | encoding->pointer, encoding->length); | |
2779 | at76_dbg(DBG_IOCTL, | |
2780 | "%s: SIOCGIWENCODE - wepstate: enabled %s key_id %d " | |
2781 | "key_len %d auth_mode %s", netdev->name, | |
2782 | (priv->wep_enabled) ? "true" : "false", priv->wep_key_id + 1, | |
2783 | priv->wep_keys_len[priv->wep_key_id], | |
2784 | (priv->auth_mode == | |
2785 | WLAN_AUTH_SHARED_KEY) ? "restricted" : "open"); | |
2786 | ||
2787 | return 0; | |
2788 | } | |
2789 | ||
2790 | static int at76_iw_handler_set_power(struct net_device *netdev, | |
2791 | struct iw_request_info *info, | |
2792 | struct iw_param *prq, char *extra) | |
2793 | { | |
2794 | int err = -EIWCOMMIT; | |
2795 | struct at76_priv *priv = netdev_priv(netdev); | |
2796 | ||
2797 | at76_dbg(DBG_IOCTL, | |
2798 | "%s: SIOCSIWPOWER - disabled %s flags 0x%x value 0x%x", | |
2799 | netdev->name, (prq->disabled) ? "true" : "false", prq->flags, | |
2800 | prq->value); | |
2801 | ||
2802 | if (prq->disabled) | |
2803 | priv->pm_mode = AT76_PM_OFF; | |
2804 | else { | |
2805 | switch (prq->flags & IW_POWER_MODE) { | |
2806 | case IW_POWER_ALL_R: | |
2807 | case IW_POWER_ON: | |
2808 | break; | |
2809 | default: | |
2810 | err = -EINVAL; | |
2811 | goto exit; | |
2812 | } | |
2813 | if (prq->flags & IW_POWER_PERIOD) | |
2814 | priv->pm_period = prq->value; | |
2815 | ||
2816 | if (prq->flags & IW_POWER_TIMEOUT) { | |
2817 | err = -EINVAL; | |
2818 | goto exit; | |
2819 | } | |
2820 | priv->pm_mode = AT76_PM_ON; | |
2821 | } | |
2822 | exit: | |
2823 | return err; | |
2824 | } | |
2825 | ||
2826 | static int at76_iw_handler_get_power(struct net_device *netdev, | |
2827 | struct iw_request_info *info, | |
2828 | struct iw_param *power, char *extra) | |
2829 | { | |
2830 | struct at76_priv *priv = netdev_priv(netdev); | |
2831 | ||
2832 | power->disabled = (priv->pm_mode == AT76_PM_OFF); | |
2833 | if (!power->disabled) { | |
2834 | power->flags = IW_POWER_PERIOD | IW_POWER_ALL_R; | |
2835 | power->value = priv->pm_period; | |
2836 | } | |
2837 | ||
2838 | at76_dbg(DBG_IOCTL, "%s: SIOCGIWPOWER - %s flags 0x%x value 0x%x", | |
2839 | netdev->name, power->disabled ? "disabled" : "enabled", | |
2840 | power->flags, power->value); | |
2841 | ||
2842 | return 0; | |
2843 | } | |
2844 | ||
2845 | /******************************************************************************* | |
2846 | * Private IOCTLS | |
2847 | */ | |
2848 | static int at76_iw_set_short_preamble(struct net_device *netdev, | |
2849 | struct iw_request_info *info, char *name, | |
2850 | char *extra) | |
2851 | { | |
2852 | struct at76_priv *priv = netdev_priv(netdev); | |
2853 | int val = *((int *)name); | |
2854 | int ret = -EIWCOMMIT; | |
2855 | ||
2856 | at76_dbg(DBG_IOCTL, "%s: AT76_SET_SHORT_PREAMBLE, %d", | |
2857 | netdev->name, val); | |
2858 | ||
2859 | if (val < PREAMBLE_TYPE_LONG || val > PREAMBLE_TYPE_AUTO) | |
2860 | ret = -EINVAL; | |
2861 | else | |
2862 | priv->preamble_type = val; | |
2863 | ||
2864 | return ret; | |
2865 | } | |
2866 | ||
2867 | static int at76_iw_get_short_preamble(struct net_device *netdev, | |
2868 | struct iw_request_info *info, | |
2869 | union iwreq_data *wrqu, char *extra) | |
2870 | { | |
2871 | struct at76_priv *priv = netdev_priv(netdev); | |
2872 | ||
2873 | snprintf(wrqu->name, sizeof(wrqu->name), "%s (%d)", | |
2874 | preambles[priv->preamble_type], priv->preamble_type); | |
2875 | return 0; | |
2876 | } | |
2877 | ||
2878 | static int at76_iw_set_debug(struct net_device *netdev, | |
2879 | struct iw_request_info *info, | |
2880 | struct iw_point *data, char *extra) | |
2881 | { | |
2882 | char *ptr; | |
2883 | u32 val; | |
2884 | ||
2885 | if (data->length > 0) { | |
2886 | val = simple_strtol(extra, &ptr, 0); | |
2887 | ||
2888 | if (ptr == extra) | |
2889 | val = DBG_DEFAULTS; | |
2890 | ||
2891 | at76_dbg(DBG_IOCTL, "%s: AT76_SET_DEBUG input %d: %s -> 0x%x", | |
2892 | netdev->name, data->length, extra, val); | |
2893 | } else | |
2894 | val = DBG_DEFAULTS; | |
2895 | ||
2896 | at76_dbg(DBG_IOCTL, "%s: AT76_SET_DEBUG, old 0x%x, new 0x%x", | |
2897 | netdev->name, at76_debug, val); | |
2898 | ||
2899 | /* jal: some more output to pin down lockups */ | |
2900 | at76_dbg(DBG_IOCTL, "%s: netif running %d queue_stopped %d " | |
2901 | "carrier_ok %d", netdev->name, netif_running(netdev), | |
2902 | netif_queue_stopped(netdev), netif_carrier_ok(netdev)); | |
2903 | ||
2904 | at76_debug = val; | |
2905 | ||
2906 | return 0; | |
2907 | } | |
2908 | ||
2909 | static int at76_iw_get_debug(struct net_device *netdev, | |
2910 | struct iw_request_info *info, | |
2911 | union iwreq_data *wrqu, char *extra) | |
2912 | { | |
2913 | snprintf(wrqu->name, sizeof(wrqu->name), "0x%08x", at76_debug); | |
2914 | return 0; | |
2915 | } | |
2916 | ||
2917 | static int at76_iw_set_powersave_mode(struct net_device *netdev, | |
2918 | struct iw_request_info *info, char *name, | |
2919 | char *extra) | |
2920 | { | |
2921 | struct at76_priv *priv = netdev_priv(netdev); | |
2922 | int val = *((int *)name); | |
2923 | int ret = -EIWCOMMIT; | |
2924 | ||
2925 | at76_dbg(DBG_IOCTL, "%s: AT76_SET_POWERSAVE_MODE, %d (%s)", | |
2926 | netdev->name, val, | |
2927 | val == AT76_PM_OFF ? "active" : val == AT76_PM_ON ? "save" : | |
2928 | val == AT76_PM_SMART ? "smart save" : "<invalid>"); | |
2929 | if (val < AT76_PM_OFF || val > AT76_PM_SMART) | |
2930 | ret = -EINVAL; | |
2931 | else | |
2932 | priv->pm_mode = val; | |
2933 | ||
2934 | return ret; | |
2935 | } | |
2936 | ||
2937 | static int at76_iw_get_powersave_mode(struct net_device *netdev, | |
2938 | struct iw_request_info *info, | |
2939 | union iwreq_data *wrqu, char *extra) | |
2940 | { | |
2941 | struct at76_priv *priv = netdev_priv(netdev); | |
2942 | int *param = (int *)extra; | |
2943 | ||
2944 | param[0] = priv->pm_mode; | |
2945 | return 0; | |
2946 | } | |
2947 | ||
2948 | static int at76_iw_set_scan_times(struct net_device *netdev, | |
2949 | struct iw_request_info *info, char *name, | |
2950 | char *extra) | |
2951 | { | |
2952 | struct at76_priv *priv = netdev_priv(netdev); | |
2953 | int mint = *((int *)name); | |
2954 | int maxt = *((int *)name + 1); | |
2955 | int ret = -EIWCOMMIT; | |
2956 | ||
2957 | at76_dbg(DBG_IOCTL, "%s: AT76_SET_SCAN_TIMES - min %d max %d", | |
2958 | netdev->name, mint, maxt); | |
2959 | if (mint <= 0 || maxt <= 0 || mint > maxt) | |
2960 | ret = -EINVAL; | |
2961 | else { | |
2962 | priv->scan_min_time = mint; | |
2963 | priv->scan_max_time = maxt; | |
2964 | } | |
2965 | ||
2966 | return ret; | |
2967 | } | |
2968 | ||
2969 | static int at76_iw_get_scan_times(struct net_device *netdev, | |
2970 | struct iw_request_info *info, | |
2971 | union iwreq_data *wrqu, char *extra) | |
2972 | { | |
2973 | struct at76_priv *priv = netdev_priv(netdev); | |
2974 | int *param = (int *)extra; | |
2975 | ||
2976 | param[0] = priv->scan_min_time; | |
2977 | param[1] = priv->scan_max_time; | |
2978 | return 0; | |
2979 | } | |
2980 | ||
2981 | static int at76_iw_set_scan_mode(struct net_device *netdev, | |
2982 | struct iw_request_info *info, char *name, | |
2983 | char *extra) | |
2984 | { | |
2985 | struct at76_priv *priv = netdev_priv(netdev); | |
2986 | int val = *((int *)name); | |
2987 | int ret = -EIWCOMMIT; | |
2988 | ||
2989 | at76_dbg(DBG_IOCTL, "%s: AT76_SET_SCAN_MODE - mode %s", | |
2990 | netdev->name, (val = SCAN_TYPE_ACTIVE) ? "active" : | |
2991 | (val = SCAN_TYPE_PASSIVE) ? "passive" : "<invalid>"); | |
2992 | ||
2993 | if (val != SCAN_TYPE_ACTIVE && val != SCAN_TYPE_PASSIVE) | |
2994 | ret = -EINVAL; | |
2995 | else | |
2996 | priv->scan_mode = val; | |
2997 | ||
2998 | return ret; | |
2999 | } | |
3000 | ||
3001 | static int at76_iw_get_scan_mode(struct net_device *netdev, | |
3002 | struct iw_request_info *info, | |
3003 | union iwreq_data *wrqu, char *extra) | |
3004 | { | |
3005 | struct at76_priv *priv = netdev_priv(netdev); | |
3006 | int *param = (int *)extra; | |
3007 | ||
3008 | param[0] = priv->scan_mode; | |
3009 | return 0; | |
3010 | } | |
3011 | ||
3012 | #define AT76_SET_HANDLER(h, f) [h - SIOCIWFIRST] = (iw_handler) f | |
3013 | ||
3014 | /* Standard wireless handlers */ | |
3015 | static const iw_handler at76_handlers[] = { | |
3016 | AT76_SET_HANDLER(SIOCSIWCOMMIT, at76_iw_handler_commit), | |
3017 | AT76_SET_HANDLER(SIOCGIWNAME, at76_iw_handler_get_name), | |
3018 | AT76_SET_HANDLER(SIOCSIWFREQ, at76_iw_handler_set_freq), | |
3019 | AT76_SET_HANDLER(SIOCGIWFREQ, at76_iw_handler_get_freq), | |
3020 | AT76_SET_HANDLER(SIOCSIWMODE, at76_iw_handler_set_mode), | |
3021 | AT76_SET_HANDLER(SIOCGIWMODE, at76_iw_handler_get_mode), | |
3022 | AT76_SET_HANDLER(SIOCGIWRANGE, at76_iw_handler_get_range), | |
3023 | AT76_SET_HANDLER(SIOCSIWSPY, at76_iw_handler_set_spy), | |
3024 | AT76_SET_HANDLER(SIOCGIWSPY, at76_iw_handler_get_spy), | |
3025 | AT76_SET_HANDLER(SIOCSIWTHRSPY, at76_iw_handler_set_thrspy), | |
3026 | AT76_SET_HANDLER(SIOCGIWTHRSPY, at76_iw_handler_get_thrspy), | |
3027 | AT76_SET_HANDLER(SIOCSIWAP, at76_iw_handler_set_wap), | |
3028 | AT76_SET_HANDLER(SIOCGIWAP, at76_iw_handler_get_wap), | |
3029 | AT76_SET_HANDLER(SIOCSIWSCAN, at76_iw_handler_set_scan), | |
3030 | AT76_SET_HANDLER(SIOCGIWSCAN, at76_iw_handler_get_scan), | |
3031 | AT76_SET_HANDLER(SIOCSIWESSID, at76_iw_handler_set_essid), | |
3032 | AT76_SET_HANDLER(SIOCGIWESSID, at76_iw_handler_get_essid), | |
3033 | AT76_SET_HANDLER(SIOCSIWRATE, at76_iw_handler_set_rate), | |
3034 | AT76_SET_HANDLER(SIOCGIWRATE, at76_iw_handler_get_rate), | |
3035 | AT76_SET_HANDLER(SIOCSIWRTS, at76_iw_handler_set_rts), | |
3036 | AT76_SET_HANDLER(SIOCGIWRTS, at76_iw_handler_get_rts), | |
3037 | AT76_SET_HANDLER(SIOCSIWFRAG, at76_iw_handler_set_frag), | |
3038 | AT76_SET_HANDLER(SIOCGIWFRAG, at76_iw_handler_get_frag), | |
3039 | AT76_SET_HANDLER(SIOCGIWTXPOW, at76_iw_handler_get_txpow), | |
3040 | AT76_SET_HANDLER(SIOCSIWRETRY, at76_iw_handler_set_retry), | |
3041 | AT76_SET_HANDLER(SIOCGIWRETRY, at76_iw_handler_get_retry), | |
3042 | AT76_SET_HANDLER(SIOCSIWENCODE, at76_iw_handler_set_encode), | |
3043 | AT76_SET_HANDLER(SIOCGIWENCODE, at76_iw_handler_get_encode), | |
3044 | AT76_SET_HANDLER(SIOCSIWPOWER, at76_iw_handler_set_power), | |
3045 | AT76_SET_HANDLER(SIOCGIWPOWER, at76_iw_handler_get_power) | |
3046 | }; | |
3047 | ||
3048 | #define AT76_SET_PRIV(h, f) [h - SIOCIWFIRSTPRIV] = (iw_handler) f | |
3049 | ||
3050 | /* Private wireless handlers */ | |
3051 | static const iw_handler at76_priv_handlers[] = { | |
3052 | AT76_SET_PRIV(AT76_SET_SHORT_PREAMBLE, at76_iw_set_short_preamble), | |
3053 | AT76_SET_PRIV(AT76_GET_SHORT_PREAMBLE, at76_iw_get_short_preamble), | |
3054 | AT76_SET_PRIV(AT76_SET_DEBUG, at76_iw_set_debug), | |
3055 | AT76_SET_PRIV(AT76_GET_DEBUG, at76_iw_get_debug), | |
3056 | AT76_SET_PRIV(AT76_SET_POWERSAVE_MODE, at76_iw_set_powersave_mode), | |
3057 | AT76_SET_PRIV(AT76_GET_POWERSAVE_MODE, at76_iw_get_powersave_mode), | |
3058 | AT76_SET_PRIV(AT76_SET_SCAN_TIMES, at76_iw_set_scan_times), | |
3059 | AT76_SET_PRIV(AT76_GET_SCAN_TIMES, at76_iw_get_scan_times), | |
3060 | AT76_SET_PRIV(AT76_SET_SCAN_MODE, at76_iw_set_scan_mode), | |
3061 | AT76_SET_PRIV(AT76_GET_SCAN_MODE, at76_iw_get_scan_mode), | |
3062 | }; | |
3063 | ||
3064 | /* Names and arguments of private wireless handlers */ | |
3065 | static const struct iw_priv_args at76_priv_args[] = { | |
3066 | /* 0 - long, 1 - short */ | |
3067 | {AT76_SET_SHORT_PREAMBLE, | |
3068 | IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_preamble"}, | |
3069 | ||
3070 | {AT76_GET_SHORT_PREAMBLE, | |
3071 | 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | 10, "get_preamble"}, | |
3072 | ||
3073 | /* we must pass the new debug mask as a string, because iwpriv cannot | |
3074 | * parse hex numbers starting with 0x :-( */ | |
3075 | {AT76_SET_DEBUG, | |
3076 | IW_PRIV_TYPE_CHAR | 10, 0, "set_debug"}, | |
3077 | ||
3078 | {AT76_GET_DEBUG, | |
3079 | 0, IW_PRIV_TYPE_CHAR | IW_PRIV_SIZE_FIXED | 10, "get_debug"}, | |
3080 | ||
3081 | /* 1 - active, 2 - power save, 3 - smart power save */ | |
3082 | {AT76_SET_POWERSAVE_MODE, | |
3083 | IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_powersave"}, | |
3084 | ||
3085 | {AT76_GET_POWERSAVE_MODE, | |
3086 | 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_powersave"}, | |
3087 | ||
3088 | /* min_channel_time, max_channel_time */ | |
3089 | {AT76_SET_SCAN_TIMES, | |
3090 | IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "set_scan_times"}, | |
3091 | ||
3092 | {AT76_GET_SCAN_TIMES, | |
3093 | 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, "get_scan_times"}, | |
3094 | ||
3095 | /* 0 - active, 1 - passive scan */ | |
3096 | {AT76_SET_SCAN_MODE, | |
3097 | IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "set_scan_mode"}, | |
3098 | ||
3099 | {AT76_GET_SCAN_MODE, | |
3100 | 0, IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_scan_mode"}, | |
3101 | }; | |
3102 | ||
3103 | static const struct iw_handler_def at76_handler_def = { | |
3104 | .num_standard = ARRAY_SIZE(at76_handlers), | |
3105 | .num_private = ARRAY_SIZE(at76_priv_handlers), | |
3106 | .num_private_args = ARRAY_SIZE(at76_priv_args), | |
3107 | .standard = at76_handlers, | |
3108 | .private = at76_priv_handlers, | |
3109 | .private_args = at76_priv_args, | |
3110 | .get_wireless_stats = at76_get_wireless_stats, | |
3111 | }; | |
3112 | ||
3113 | static const u8 snapsig[] = { 0xaa, 0xaa, 0x03 }; | |
3114 | ||
3115 | /* RFC 1042 encapsulates Ethernet frames in 802.2 SNAP (0xaa, 0xaa, 0x03) with | |
3116 | * a SNAP OID of 0 (0x00, 0x00, 0x00) */ | |
3117 | static const u8 rfc1042sig[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 }; | |
3118 | ||
3119 | static int at76_tx(struct sk_buff *skb, struct net_device *netdev) | |
3120 | { | |
3121 | struct at76_priv *priv = netdev_priv(netdev); | |
3122 | struct net_device_stats *stats = &priv->stats; | |
3123 | int ret = 0; | |
3124 | int wlen; | |
3125 | int submit_len; | |
3126 | struct at76_tx_buffer *tx_buffer = priv->bulk_out_buffer; | |
3127 | struct ieee80211_hdr_3addr *i802_11_hdr = | |
3128 | (struct ieee80211_hdr_3addr *)tx_buffer->packet; | |
3129 | u8 *payload = i802_11_hdr->payload; | |
3130 | struct ethhdr *eh = (struct ethhdr *)skb->data; | |
3131 | ||
3132 | if (netif_queue_stopped(netdev)) { | |
3133 | printk(KERN_ERR "%s: %s called while netdev is stopped\n", | |
3134 | netdev->name, __func__); | |
3135 | /* skip this packet */ | |
3136 | dev_kfree_skb(skb); | |
6ed10654 | 3137 | return NETDEV_TX_OK; |
89cb7e7f GKH |
3138 | } |
3139 | ||
3140 | if (priv->tx_urb->status == -EINPROGRESS) { | |
3141 | printk(KERN_ERR "%s: %s called while tx urb is pending\n", | |
3142 | netdev->name, __func__); | |
3143 | /* skip this packet */ | |
3144 | dev_kfree_skb(skb); | |
6ed10654 | 3145 | return NETDEV_TX_OK; |
89cb7e7f GKH |
3146 | } |
3147 | ||
3148 | if (skb->len < ETH_HLEN) { | |
3149 | printk(KERN_ERR "%s: %s: skb too short (%d)\n", | |
3150 | netdev->name, __func__, skb->len); | |
3151 | dev_kfree_skb(skb); | |
6ed10654 | 3152 | return NETDEV_TX_OK; |
89cb7e7f GKH |
3153 | } |
3154 | ||
3155 | at76_ledtrig_tx_activity(); /* tell ledtrigger we send a packet */ | |
3156 | ||
3157 | /* we can get rid of memcpy if we set netdev->hard_header_len to | |
3158 | reserve enough space, but we would need to keep the skb around */ | |
3159 | ||
3160 | if (ntohs(eh->h_proto) <= ETH_DATA_LEN) { | |
3161 | /* this is a 802.3 packet */ | |
3162 | if (skb->len >= ETH_HLEN + sizeof(rfc1042sig) | |
3163 | && skb->data[ETH_HLEN] == rfc1042sig[0] | |
3164 | && skb->data[ETH_HLEN + 1] == rfc1042sig[1]) { | |
3165 | /* higher layer delivered SNAP header - keep it */ | |
3166 | memcpy(payload, skb->data + ETH_HLEN, | |
3167 | skb->len - ETH_HLEN); | |
3168 | wlen = IEEE80211_3ADDR_LEN + skb->len - ETH_HLEN; | |
3169 | } else { | |
3170 | printk(KERN_ERR "%s: dropping non-SNAP 802.2 packet " | |
3171 | "(DSAP 0x%02x SSAP 0x%02x cntrl 0x%02x)\n", | |
3172 | priv->netdev->name, skb->data[ETH_HLEN], | |
3173 | skb->data[ETH_HLEN + 1], | |
3174 | skb->data[ETH_HLEN + 2]); | |
3175 | dev_kfree_skb(skb); | |
6ed10654 | 3176 | return NETDEV_TX_OK; |
89cb7e7f GKH |
3177 | } |
3178 | } else { | |
3179 | /* add RFC 1042 header in front */ | |
3180 | memcpy(payload, rfc1042sig, sizeof(rfc1042sig)); | |
3181 | memcpy(payload + sizeof(rfc1042sig), &eh->h_proto, | |
3182 | skb->len - offsetof(struct ethhdr, h_proto)); | |
3183 | wlen = IEEE80211_3ADDR_LEN + sizeof(rfc1042sig) + skb->len - | |
3184 | offsetof(struct ethhdr, h_proto); | |
3185 | } | |
3186 | ||
3187 | /* make wireless header */ | |
3188 | i802_11_hdr->frame_ctl = | |
3189 | cpu_to_le16(IEEE80211_FTYPE_DATA | | |
3190 | (priv->wep_enabled ? IEEE80211_FCTL_PROTECTED : 0) | | |
3191 | (priv->iw_mode == | |
3192 | IW_MODE_INFRA ? IEEE80211_FCTL_TODS : 0)); | |
3193 | ||
3194 | if (priv->iw_mode == IW_MODE_ADHOC) { | |
3195 | memcpy(i802_11_hdr->addr1, eh->h_dest, ETH_ALEN); | |
3196 | memcpy(i802_11_hdr->addr2, eh->h_source, ETH_ALEN); | |
3197 | memcpy(i802_11_hdr->addr3, priv->bssid, ETH_ALEN); | |
3198 | } else if (priv->iw_mode == IW_MODE_INFRA) { | |
3199 | memcpy(i802_11_hdr->addr1, priv->bssid, ETH_ALEN); | |
3200 | memcpy(i802_11_hdr->addr2, eh->h_source, ETH_ALEN); | |
3201 | memcpy(i802_11_hdr->addr3, eh->h_dest, ETH_ALEN); | |
3202 | } | |
3203 | ||
3204 | i802_11_hdr->duration_id = cpu_to_le16(0); | |
3205 | i802_11_hdr->seq_ctl = cpu_to_le16(0); | |
3206 | ||
3207 | /* setup 'Atmel' header */ | |
3208 | tx_buffer->wlength = cpu_to_le16(wlen); | |
3209 | tx_buffer->tx_rate = priv->txrate; | |
3210 | /* for broadcast destination addresses, the firmware 0.100.x | |
3211 | seems to choose the highest rate set with CMD_STARTUP in | |
3212 | basic_rate_set replacing this value */ | |
3213 | ||
3214 | memset(tx_buffer->reserved, 0, sizeof(tx_buffer->reserved)); | |
3215 | ||
3216 | tx_buffer->padding = at76_calc_padding(wlen); | |
3217 | submit_len = wlen + AT76_TX_HDRLEN + tx_buffer->padding; | |
3218 | ||
3219 | at76_dbg(DBG_TX_DATA_CONTENT, "%s skb->data %s", priv->netdev->name, | |
3220 | hex2str(skb->data, 32)); | |
3221 | at76_dbg(DBG_TX_DATA, "%s tx: wlen 0x%x pad 0x%x rate %d hdr %s", | |
3222 | priv->netdev->name, | |
3223 | le16_to_cpu(tx_buffer->wlength), | |
3224 | tx_buffer->padding, tx_buffer->tx_rate, | |
3225 | hex2str(i802_11_hdr, sizeof(*i802_11_hdr))); | |
3226 | at76_dbg(DBG_TX_DATA_CONTENT, "%s payload %s", priv->netdev->name, | |
3227 | hex2str(payload, 48)); | |
3228 | ||
3229 | /* send stuff */ | |
3230 | netif_stop_queue(netdev); | |
3231 | netdev->trans_start = jiffies; | |
3232 | ||
3233 | usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, tx_buffer, | |
3234 | submit_len, at76_tx_callback, priv); | |
3235 | ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC); | |
3236 | if (ret) { | |
3237 | stats->tx_errors++; | |
3238 | printk(KERN_ERR "%s: error in tx submit urb: %d\n", | |
3239 | netdev->name, ret); | |
3240 | if (ret == -EINVAL) | |
3241 | printk(KERN_ERR | |
3242 | "%s: -EINVAL: tx urb %p hcpriv %p complete %p\n", | |
3243 | priv->netdev->name, priv->tx_urb, | |
3244 | priv->tx_urb->hcpriv, priv->tx_urb->complete); | |
5b2c4b97 | 3245 | } else |
89cb7e7f | 3246 | stats->tx_bytes += skb->len; |
89cb7e7f | 3247 | |
5b2c4b97 PM |
3248 | dev_kfree_skb(skb); |
3249 | return NETDEV_TX_OK; | |
89cb7e7f GKH |
3250 | } |
3251 | ||
3252 | static void at76_tx_timeout(struct net_device *netdev) | |
3253 | { | |
3254 | struct at76_priv *priv = netdev_priv(netdev); | |
3255 | ||
3256 | if (!priv) | |
3257 | return; | |
3258 | dev_warn(&netdev->dev, "tx timeout."); | |
3259 | ||
3260 | usb_unlink_urb(priv->tx_urb); | |
3261 | priv->stats.tx_errors++; | |
3262 | } | |
3263 | ||
3264 | static int at76_submit_rx_urb(struct at76_priv *priv) | |
3265 | { | |
3266 | int ret; | |
3267 | int size; | |
3268 | struct sk_buff *skb = priv->rx_skb; | |
3269 | ||
3270 | if (!priv->rx_urb) { | |
3271 | printk(KERN_ERR "%s: %s: priv->rx_urb is NULL\n", | |
3272 | priv->netdev->name, __func__); | |
3273 | return -EFAULT; | |
3274 | } | |
3275 | ||
3276 | if (!skb) { | |
3277 | skb = dev_alloc_skb(sizeof(struct at76_rx_buffer)); | |
3278 | if (!skb) { | |
3279 | printk(KERN_ERR "%s: cannot allocate rx skbuff\n", | |
3280 | priv->netdev->name); | |
3281 | ret = -ENOMEM; | |
3282 | goto exit; | |
3283 | } | |
3284 | priv->rx_skb = skb; | |
3285 | } else { | |
3286 | skb_push(skb, skb_headroom(skb)); | |
3287 | skb_trim(skb, 0); | |
3288 | } | |
3289 | ||
3290 | size = skb_tailroom(skb); | |
3291 | usb_fill_bulk_urb(priv->rx_urb, priv->udev, priv->rx_pipe, | |
3292 | skb_put(skb, size), size, at76_rx_callback, priv); | |
3293 | ret = usb_submit_urb(priv->rx_urb, GFP_ATOMIC); | |
3294 | if (ret < 0) { | |
3295 | if (ret == -ENODEV) | |
3296 | at76_dbg(DBG_DEVSTART, | |
3297 | "usb_submit_urb returned -ENODEV"); | |
3298 | else | |
3299 | printk(KERN_ERR "%s: rx, usb_submit_urb failed: %d\n", | |
3300 | priv->netdev->name, ret); | |
3301 | } | |
3302 | ||
3303 | exit: | |
3304 | if (ret < 0 && ret != -ENODEV) | |
3305 | printk(KERN_ERR "%s: cannot submit rx urb - please unload the " | |
3306 | "driver and/or power cycle the device\n", | |
3307 | priv->netdev->name); | |
3308 | ||
3309 | return ret; | |
3310 | } | |
3311 | ||
3312 | static int at76_open(struct net_device *netdev) | |
3313 | { | |
3314 | struct at76_priv *priv = netdev_priv(netdev); | |
3315 | int ret = 0; | |
3316 | ||
3317 | at76_dbg(DBG_PROC_ENTRY, "%s(): entry", __func__); | |
3318 | ||
3319 | if (mutex_lock_interruptible(&priv->mtx)) | |
3320 | return -EINTR; | |
3321 | ||
3322 | /* if netdev->dev_addr != priv->mac_addr we must | |
3323 | set the mac address in the device ! */ | |
3324 | if (compare_ether_addr(netdev->dev_addr, priv->mac_addr)) { | |
3325 | if (at76_add_mac_address(priv, netdev->dev_addr) >= 0) | |
3326 | at76_dbg(DBG_PROGRESS, "%s: set new MAC addr %s", | |
3327 | netdev->name, mac2str(netdev->dev_addr)); | |
3328 | } | |
3329 | ||
3330 | priv->scan_state = SCAN_IDLE; | |
3331 | priv->last_scan = jiffies; | |
3332 | ||
3333 | ret = at76_submit_rx_urb(priv); | |
3334 | if (ret < 0) { | |
3335 | printk(KERN_ERR "%s: open: submit_rx_urb failed: %d\n", | |
3336 | netdev->name, ret); | |
3337 | goto error; | |
3338 | } | |
3339 | ||
3340 | schedule_delayed_work(&priv->dwork_restart, 0); | |
3341 | ||
3342 | at76_dbg(DBG_PROC_ENTRY, "%s(): end", __func__); | |
3343 | error: | |
3344 | mutex_unlock(&priv->mtx); | |
3345 | return ret < 0 ? ret : 0; | |
3346 | } | |
3347 | ||
3348 | static int at76_stop(struct net_device *netdev) | |
3349 | { | |
3350 | struct at76_priv *priv = netdev_priv(netdev); | |
3351 | ||
3352 | at76_dbg(DBG_DEVSTART, "%s: ENTER", __func__); | |
3353 | ||
3354 | if (mutex_lock_interruptible(&priv->mtx)) | |
3355 | return -EINTR; | |
3356 | ||
3357 | at76_quiesce(priv); | |
3358 | ||
3359 | if (!priv->device_unplugged) { | |
3360 | /* We are called by "ifconfig ethX down", not because the | |
3361 | * device is not available anymore. */ | |
3362 | at76_set_radio(priv, 0); | |
3363 | ||
3364 | /* We unlink rx_urb because at76_open() re-submits it. | |
3365 | * If unplugged, at76_delete_device() takes care of it. */ | |
3366 | usb_kill_urb(priv->rx_urb); | |
3367 | } | |
3368 | ||
3369 | /* free the bss_list */ | |
3370 | at76_free_bss_list(priv); | |
3371 | ||
3372 | mutex_unlock(&priv->mtx); | |
3373 | at76_dbg(DBG_DEVSTART, "%s: EXIT", __func__); | |
3374 | ||
3375 | return 0; | |
3376 | } | |
3377 | ||
3378 | static void at76_ethtool_get_drvinfo(struct net_device *netdev, | |
3379 | struct ethtool_drvinfo *info) | |
3380 | { | |
3381 | struct at76_priv *priv = netdev_priv(netdev); | |
3382 | ||
3383 | strncpy(info->driver, DRIVER_NAME, sizeof(info->driver)); | |
3384 | strncpy(info->version, DRIVER_VERSION, sizeof(info->version)); | |
3385 | ||
3386 | usb_make_path(priv->udev, info->bus_info, sizeof(info->bus_info)); | |
3387 | ||
3388 | snprintf(info->fw_version, sizeof(info->fw_version), "%d.%d.%d-%d", | |
3389 | priv->fw_version.major, priv->fw_version.minor, | |
3390 | priv->fw_version.patch, priv->fw_version.build); | |
3391 | } | |
3392 | ||
3393 | static u32 at76_ethtool_get_link(struct net_device *netdev) | |
3394 | { | |
3395 | struct at76_priv *priv = netdev_priv(netdev); | |
3396 | return priv->mac_state == MAC_CONNECTED; | |
3397 | } | |
3398 | ||
0fc0b732 | 3399 | static const struct ethtool_ops at76_ethtool_ops = { |
89cb7e7f GKH |
3400 | .get_drvinfo = at76_ethtool_get_drvinfo, |
3401 | .get_link = at76_ethtool_get_link, | |
3402 | }; | |
3403 | ||
3404 | /* Download external firmware */ | |
3405 | static int at76_load_external_fw(struct usb_device *udev, struct fwentry *fwe) | |
3406 | { | |
3407 | int ret; | |
3408 | int op_mode; | |
3409 | int blockno = 0; | |
3410 | int bsize; | |
3411 | u8 *block; | |
3412 | u8 *buf = fwe->extfw; | |
3413 | int size = fwe->extfw_size; | |
3414 | ||
3415 | if (!buf || !size) | |
3416 | return -ENOENT; | |
99e06e37 | 3417 | |
02227c28 JL |
3418 | op_mode = at76_get_op_mode(udev); |
3419 | at76_dbg(DBG_DEVSTART, "opmode %d", op_mode); | |
99e06e37 | 3420 | |
02227c28 JL |
3421 | if (op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) { |
3422 | dev_printk(KERN_ERR, &udev->dev, "unexpected opmode %d\n", | |
3423 | op_mode); | |
3424 | return -EINVAL; | |
99e06e37 PR |
3425 | } |
3426 | ||
02227c28 JL |
3427 | block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL); |
3428 | if (!block) | |
3429 | return -ENOMEM; | |
99e06e37 | 3430 | |
02227c28 | 3431 | at76_dbg(DBG_DEVSTART, "downloading external firmware"); |
99e06e37 PR |
3432 | |
3433 | /* for fw >= 0.100, the device needs an extra empty block */ | |
3434 | do { | |
3435 | bsize = min_t(int, size, FW_BLOCK_SIZE); | |
3436 | memcpy(block, buf, bsize); | |
3437 | at76_dbg(DBG_DEVSTART, | |
3438 | "ext fw, size left = %5d, bsize = %4d, blockno = %2d", | |
3439 | size, bsize, blockno); | |
3440 | ret = at76_load_ext_fw_block(udev, blockno, block, bsize); | |
3441 | if (ret != bsize) { | |
3442 | dev_printk(KERN_ERR, &udev->dev, | |
3443 | "loading %dth firmware block failed: %d\n", | |
3444 | blockno, ret); | |
3445 | goto exit; | |
3446 | } | |
3447 | buf += bsize; | |
3448 | size -= bsize; | |
3449 | blockno++; | |
3450 | } while (bsize > 0); | |
3451 | ||
3452 | if (at76_is_505a(fwe->board_type)) { | |
3453 | at76_dbg(DBG_DEVSTART, "200 ms delay for 505a"); | |
3454 | schedule_timeout_interruptible(HZ / 5 + 1); | |
3455 | } | |
3456 | ||
3457 | exit: | |
3458 | kfree(block); | |
3459 | if (ret < 0) | |
3460 | dev_printk(KERN_ERR, &udev->dev, | |
3461 | "downloading external firmware failed: %d\n", ret); | |
02227c28 | 3462 | return ret; |
99e06e37 PR |
3463 | } |
3464 | ||
89cb7e7f GKH |
3465 | /* Download internal firmware */ |
3466 | static int at76_load_internal_fw(struct usb_device *udev, struct fwentry *fwe) | |
3467 | { | |
3468 | int ret; | |
3469 | int need_remap = !at76_is_505a(fwe->board_type); | |
3470 | ||
3471 | ret = at76_usbdfu_download(udev, fwe->intfw, fwe->intfw_size, | |
3472 | need_remap ? 0 : 2 * HZ); | |
3473 | ||
3474 | if (ret < 0) { | |
3475 | dev_printk(KERN_ERR, &udev->dev, | |
3476 | "downloading internal fw failed with %d\n", ret); | |
3477 | goto exit; | |
3478 | } | |
3479 | ||
3480 | at76_dbg(DBG_DEVSTART, "sending REMAP"); | |
3481 | ||
3482 | /* no REMAP for 505A (see SF driver) */ | |
3483 | if (need_remap) { | |
3484 | ret = at76_remap(udev); | |
3485 | if (ret < 0) { | |
3486 | dev_printk(KERN_ERR, &udev->dev, | |
3487 | "sending REMAP failed with %d\n", ret); | |
3488 | goto exit; | |
3489 | } | |
3490 | } | |
3491 | ||
3492 | at76_dbg(DBG_DEVSTART, "sleeping for 2 seconds"); | |
3493 | schedule_timeout_interruptible(2 * HZ + 1); | |
3494 | usb_reset_device(udev); | |
3495 | ||
3496 | exit: | |
3497 | return ret; | |
3498 | } | |
3499 | ||
3500 | static int at76_match_essid(struct at76_priv *priv, struct bss_info *ptr) | |
3501 | { | |
3502 | /* common criteria for both modi */ | |
3503 | ||
3504 | int ret = (priv->essid_size == 0 /* ANY ssid */ || | |
3505 | (priv->essid_size == ptr->ssid_len && | |
3506 | !memcmp(priv->essid, ptr->ssid, ptr->ssid_len))); | |
3507 | if (!ret) | |
3508 | at76_dbg(DBG_BSS_MATCH, | |
3509 | "%s bss table entry %p: essid didn't match", | |
3510 | priv->netdev->name, ptr); | |
3511 | return ret; | |
3512 | } | |
3513 | ||
3514 | static inline int at76_match_mode(struct at76_priv *priv, struct bss_info *ptr) | |
3515 | { | |
3516 | int ret; | |
3517 | ||
3518 | if (priv->iw_mode == IW_MODE_ADHOC) | |
3519 | ret = ptr->capa & WLAN_CAPABILITY_IBSS; | |
3520 | else | |
3521 | ret = ptr->capa & WLAN_CAPABILITY_ESS; | |
3522 | if (!ret) | |
3523 | at76_dbg(DBG_BSS_MATCH, | |
3524 | "%s bss table entry %p: mode didn't match", | |
3525 | priv->netdev->name, ptr); | |
3526 | return ret; | |
3527 | } | |
3528 | ||
3529 | static int at76_match_rates(struct at76_priv *priv, struct bss_info *ptr) | |
3530 | { | |
3531 | int i; | |
3532 | ||
3533 | for (i = 0; i < ptr->rates_len; i++) { | |
3534 | u8 rate = ptr->rates[i]; | |
3535 | ||
3536 | if (!(rate & 0x80)) | |
3537 | continue; | |
3538 | ||
3539 | /* this is a basic rate we have to support | |
3540 | (see IEEE802.11, ch. 7.3.2.2) */ | |
3541 | if (rate != (0x80 | hw_rates[0]) | |
3542 | && rate != (0x80 | hw_rates[1]) | |
3543 | && rate != (0x80 | hw_rates[2]) | |
3544 | && rate != (0x80 | hw_rates[3])) { | |
3545 | at76_dbg(DBG_BSS_MATCH, | |
3546 | "%s: bss table entry %p: basic rate %02x not " | |
3547 | "supported", priv->netdev->name, ptr, rate); | |
3548 | return 0; | |
3549 | } | |
3550 | } | |
3551 | ||
3552 | /* if we use short preamble, the bss must support it */ | |
3553 | if (priv->preamble_type == PREAMBLE_TYPE_SHORT && | |
3554 | !(ptr->capa & WLAN_CAPABILITY_SHORT_PREAMBLE)) { | |
3555 | at76_dbg(DBG_BSS_MATCH, | |
3556 | "%s: %p does not support short preamble", | |
3557 | priv->netdev->name, ptr); | |
3558 | return 0; | |
3559 | } else | |
3560 | return 1; | |
3561 | } | |
3562 | ||
3563 | static inline int at76_match_wep(struct at76_priv *priv, struct bss_info *ptr) | |
3564 | { | |
3565 | if (!priv->wep_enabled && ptr->capa & WLAN_CAPABILITY_PRIVACY) { | |
3566 | /* we have disabled WEP, but the BSS signals privacy */ | |
3567 | at76_dbg(DBG_BSS_MATCH, | |
3568 | "%s: bss table entry %p: requires encryption", | |
3569 | priv->netdev->name, ptr); | |
3570 | return 0; | |
3571 | } | |
3572 | /* otherwise if the BSS does not signal privacy it may well | |
3573 | accept encrypted packets from us ... */ | |
3574 | return 1; | |
3575 | } | |
3576 | ||
3577 | static inline int at76_match_bssid(struct at76_priv *priv, struct bss_info *ptr) | |
3578 | { | |
3579 | if (!priv->wanted_bssid_valid || | |
3580 | !compare_ether_addr(ptr->bssid, priv->wanted_bssid)) | |
3581 | return 1; | |
3582 | ||
3583 | at76_dbg(DBG_BSS_MATCH, | |
3584 | "%s: requested bssid - %s does not match", | |
3585 | priv->netdev->name, mac2str(priv->wanted_bssid)); | |
3586 | at76_dbg(DBG_BSS_MATCH, | |
3587 | " AP bssid - %s of bss table entry %p", | |
3588 | mac2str(ptr->bssid), ptr); | |
3589 | return 0; | |
3590 | } | |
3591 | ||
3592 | /** | |
3593 | * at76_match_bss - try to find a matching bss in priv->bss | |
3594 | * | |
3595 | * last - last bss tried | |
3596 | * | |
3597 | * last == NULL signals a new round starting with priv->bss_list.next | |
3598 | * this function must be called inside an acquired priv->bss_list_spinlock | |
3599 | * otherwise the timeout on bss may remove the newly chosen entry | |
3600 | */ | |
3601 | static struct bss_info *at76_match_bss(struct at76_priv *priv, | |
3602 | struct bss_info *last) | |
3603 | { | |
3604 | struct bss_info *ptr = NULL; | |
3605 | struct list_head *curr; | |
3606 | ||
3607 | curr = last ? last->list.next : priv->bss_list.next; | |
3608 | while (curr != &priv->bss_list) { | |
3609 | ptr = list_entry(curr, struct bss_info, list); | |
3610 | if (at76_match_essid(priv, ptr) && at76_match_mode(priv, ptr) | |
3611 | && at76_match_wep(priv, ptr) && at76_match_rates(priv, ptr) | |
3612 | && at76_match_bssid(priv, ptr)) | |
3613 | break; | |
3614 | curr = curr->next; | |
3615 | } | |
3616 | ||
3617 | if (curr == &priv->bss_list) | |
3618 | ptr = NULL; | |
3619 | /* otherwise ptr points to the struct bss_info we have chosen */ | |
3620 | ||
3621 | at76_dbg(DBG_BSS_TABLE, "%s %s: returned %p", priv->netdev->name, | |
3622 | __func__, ptr); | |
3623 | return ptr; | |
3624 | } | |
3625 | ||
3626 | /* Start joining a matching BSS, or create own IBSS */ | |
3627 | static void at76_work_join(struct work_struct *work) | |
3628 | { | |
3629 | struct at76_priv *priv = container_of(work, struct at76_priv, | |
3630 | work_join); | |
3631 | int ret; | |
3632 | unsigned long flags; | |
3633 | ||
3634 | mutex_lock(&priv->mtx); | |
3635 | ||
3636 | WARN_ON(priv->mac_state != MAC_JOINING); | |
3637 | if (priv->mac_state != MAC_JOINING) | |
3638 | goto exit; | |
3639 | ||
3640 | /* secure the access to priv->curr_bss ! */ | |
3641 | spin_lock_irqsave(&priv->bss_list_spinlock, flags); | |
3642 | priv->curr_bss = at76_match_bss(priv, priv->curr_bss); | |
3643 | spin_unlock_irqrestore(&priv->bss_list_spinlock, flags); | |
3644 | ||
3645 | if (!priv->curr_bss) { | |
3646 | /* here we haven't found a matching (i)bss ... */ | |
3647 | if (priv->iw_mode == IW_MODE_ADHOC) { | |
3648 | at76_set_mac_state(priv, MAC_OWN_IBSS); | |
3649 | at76_start_ibss(priv); | |
3650 | goto exit; | |
3651 | } | |
3652 | /* haven't found a matching BSS in infra mode - try again */ | |
3653 | at76_set_mac_state(priv, MAC_SCANNING); | |
3654 | schedule_work(&priv->work_start_scan); | |
3655 | goto exit; | |
3656 | } | |
3657 | ||
3658 | ret = at76_join_bss(priv, priv->curr_bss); | |
3659 | if (ret < 0) { | |
3660 | printk(KERN_ERR "%s: join_bss failed with %d\n", | |
3661 | priv->netdev->name, ret); | |
3662 | goto exit; | |
3663 | } | |
3664 | ||
3665 | ret = at76_wait_completion(priv, CMD_JOIN); | |
3666 | if (ret != CMD_STATUS_COMPLETE) { | |
3667 | if (ret != CMD_STATUS_TIME_OUT) | |
3668 | printk(KERN_ERR "%s: join_bss completed with %d\n", | |
3669 | priv->netdev->name, ret); | |
3670 | else | |
3671 | printk(KERN_INFO "%s: join_bss ssid %s timed out\n", | |
3672 | priv->netdev->name, | |
3673 | mac2str(priv->curr_bss->bssid)); | |
3674 | ||
3675 | /* retry next BSS immediately */ | |
3676 | schedule_work(&priv->work_join); | |
3677 | goto exit; | |
3678 | } | |
3679 | ||
3680 | /* here we have joined the (I)BSS */ | |
3681 | if (priv->iw_mode == IW_MODE_ADHOC) { | |
3682 | struct bss_info *bptr = priv->curr_bss; | |
3683 | at76_set_mac_state(priv, MAC_CONNECTED); | |
3684 | /* get ESSID, BSSID and channel for priv->curr_bss */ | |
3685 | priv->essid_size = bptr->ssid_len; | |
3686 | memcpy(priv->essid, bptr->ssid, bptr->ssid_len); | |
3687 | memcpy(priv->bssid, bptr->bssid, ETH_ALEN); | |
3688 | priv->channel = bptr->channel; | |
3689 | at76_iwevent_bss_connect(priv->netdev, bptr->bssid); | |
3690 | netif_carrier_on(priv->netdev); | |
3691 | netif_start_queue(priv->netdev); | |
3692 | /* just to be sure */ | |
3693 | cancel_delayed_work(&priv->dwork_get_scan); | |
3694 | cancel_delayed_work(&priv->dwork_auth); | |
3695 | cancel_delayed_work(&priv->dwork_assoc); | |
3696 | } else { | |
3697 | /* send auth req */ | |
3698 | priv->retries = AUTH_RETRIES; | |
3699 | at76_set_mac_state(priv, MAC_AUTH); | |
3700 | at76_auth_req(priv, priv->curr_bss, 1, NULL); | |
3701 | at76_dbg(DBG_MGMT_TIMER, | |
3702 | "%s:%d: starting mgmt_timer + HZ", __func__, __LINE__); | |
3703 | schedule_delayed_work(&priv->dwork_auth, AUTH_TIMEOUT); | |
3704 | } | |
3705 | ||
3706 | exit: | |
3707 | mutex_unlock(&priv->mtx); | |
3708 | } | |
3709 | ||
3710 | /* Reap scan results */ | |
3711 | static void at76_dwork_get_scan(struct work_struct *work) | |
3712 | { | |
3713 | int status; | |
3714 | int ret; | |
3715 | struct at76_priv *priv = container_of(work, struct at76_priv, | |
3716 | dwork_get_scan.work); | |
3717 | ||
3718 | mutex_lock(&priv->mtx); | |
3719 | WARN_ON(priv->mac_state != MAC_SCANNING); | |
3720 | if (priv->mac_state != MAC_SCANNING) | |
3721 | goto exit; | |
3722 | ||
3723 | status = at76_get_cmd_status(priv->udev, CMD_SCAN); | |
3724 | if (status < 0) { | |
3725 | printk(KERN_ERR "%s: %s: at76_get_cmd_status failed with %d\n", | |
3726 | priv->netdev->name, __func__, status); | |
3727 | status = CMD_STATUS_IN_PROGRESS; | |
3728 | /* INFO: Hope it was a one off error - if not, scanning | |
3729 | further down the line and stop this cycle */ | |
3730 | } | |
3731 | at76_dbg(DBG_PROGRESS, | |
3732 | "%s %s: got cmd_status %d (state %s, need_any %d)", | |
3733 | priv->netdev->name, __func__, status, | |
3734 | mac_states[priv->mac_state], priv->scan_need_any); | |
3735 | ||
3736 | if (status != CMD_STATUS_COMPLETE) { | |
3737 | if ((status != CMD_STATUS_IN_PROGRESS) && | |
3738 | (status != CMD_STATUS_IDLE)) | |
3739 | printk(KERN_ERR "%s: %s: Bad scan status: %s\n", | |
3740 | priv->netdev->name, __func__, | |
3741 | at76_get_cmd_status_string(status)); | |
3742 | ||
3743 | /* the first cmd status after scan start is always a IDLE -> | |
3744 | start the timer to poll again until COMPLETED */ | |
3745 | at76_dbg(DBG_MGMT_TIMER, | |
3746 | "%s:%d: starting mgmt_timer for %d ticks", | |
3747 | __func__, __LINE__, SCAN_POLL_INTERVAL); | |
3748 | schedule_delayed_work(&priv->dwork_get_scan, | |
3749 | SCAN_POLL_INTERVAL); | |
3750 | goto exit; | |
3751 | } | |
3752 | ||
3753 | if (at76_debug & DBG_BSS_TABLE) | |
3754 | at76_dump_bss_table(priv); | |
3755 | ||
3756 | if (priv->scan_need_any) { | |
3757 | ret = at76_start_scan(priv, 0); | |
3758 | if (ret < 0) | |
3759 | printk(KERN_ERR | |
3760 | "%s: %s: start_scan (ANY) failed with %d\n", | |
3761 | priv->netdev->name, __func__, ret); | |
3762 | at76_dbg(DBG_MGMT_TIMER, | |
3763 | "%s:%d: starting mgmt_timer for %d ticks", __func__, | |
3764 | __LINE__, SCAN_POLL_INTERVAL); | |
3765 | schedule_delayed_work(&priv->dwork_get_scan, | |
3766 | SCAN_POLL_INTERVAL); | |
3767 | priv->scan_need_any = 0; | |
3768 | } else { | |
3769 | priv->scan_state = SCAN_COMPLETED; | |
3770 | /* report the end of scan to user space */ | |
3771 | at76_iwevent_scan_complete(priv->netdev); | |
3772 | at76_set_mac_state(priv, MAC_JOINING); | |
3773 | schedule_work(&priv->work_join); | |
3774 | } | |
3775 | ||
3776 | exit: | |
3777 | mutex_unlock(&priv->mtx); | |
3778 | } | |
3779 | ||
3780 | /* Handle loss of beacons from the AP */ | |
3781 | static void at76_dwork_beacon(struct work_struct *work) | |
3782 | { | |
3783 | struct at76_priv *priv = container_of(work, struct at76_priv, | |
3784 | dwork_beacon.work); | |
3785 | ||
3786 | mutex_lock(&priv->mtx); | |
3787 | if (priv->mac_state != MAC_CONNECTED || priv->iw_mode != IW_MODE_INFRA) | |
3788 | goto exit; | |
3789 | ||
3790 | /* We haven't received any beacons from out AP for BEACON_TIMEOUT */ | |
3791 | printk(KERN_INFO "%s: lost beacon bssid %s\n", | |
3792 | priv->netdev->name, mac2str(priv->curr_bss->bssid)); | |
3793 | ||
3794 | netif_carrier_off(priv->netdev); | |
3795 | netif_stop_queue(priv->netdev); | |
3796 | at76_iwevent_bss_disconnect(priv->netdev); | |
3797 | at76_set_mac_state(priv, MAC_SCANNING); | |
3798 | schedule_work(&priv->work_start_scan); | |
3799 | ||
3800 | exit: | |
3801 | mutex_unlock(&priv->mtx); | |
3802 | } | |
3803 | ||
3804 | /* Handle authentication response timeout */ | |
3805 | static void at76_dwork_auth(struct work_struct *work) | |
3806 | { | |
3807 | struct at76_priv *priv = container_of(work, struct at76_priv, | |
3808 | dwork_auth.work); | |
3809 | ||
3810 | mutex_lock(&priv->mtx); | |
3811 | WARN_ON(priv->mac_state != MAC_AUTH); | |
3812 | if (priv->mac_state != MAC_AUTH) | |
3813 | goto exit; | |
3814 | ||
3815 | at76_dbg(DBG_PROGRESS, "%s: authentication response timeout", | |
3816 | priv->netdev->name); | |
3817 | ||
3818 | if (priv->retries-- >= 0) { | |
3819 | at76_auth_req(priv, priv->curr_bss, 1, NULL); | |
3820 | at76_dbg(DBG_MGMT_TIMER, "%s:%d: starting mgmt_timer + HZ", | |
3821 | __func__, __LINE__); | |
3822 | schedule_delayed_work(&priv->dwork_auth, AUTH_TIMEOUT); | |
3823 | } else { | |
3824 | /* try to get next matching BSS */ | |
3825 | at76_set_mac_state(priv, MAC_JOINING); | |
3826 | schedule_work(&priv->work_join); | |
3827 | } | |
3828 | ||
3829 | exit: | |
3830 | mutex_unlock(&priv->mtx); | |
3831 | } | |
3832 | ||
3833 | /* Handle association response timeout */ | |
3834 | static void at76_dwork_assoc(struct work_struct *work) | |
3835 | { | |
3836 | struct at76_priv *priv = container_of(work, struct at76_priv, | |
3837 | dwork_assoc.work); | |
3838 | ||
3839 | mutex_lock(&priv->mtx); | |
3840 | WARN_ON(priv->mac_state != MAC_ASSOC); | |
3841 | if (priv->mac_state != MAC_ASSOC) | |
3842 | goto exit; | |
3843 | ||
3844 | at76_dbg(DBG_PROGRESS, "%s: association response timeout", | |
3845 | priv->netdev->name); | |
3846 | ||
3847 | if (priv->retries-- >= 0) { | |
3848 | at76_assoc_req(priv, priv->curr_bss); | |
3849 | at76_dbg(DBG_MGMT_TIMER, "%s:%d: starting mgmt_timer + HZ", | |
3850 | __func__, __LINE__); | |
3851 | schedule_delayed_work(&priv->dwork_assoc, ASSOC_TIMEOUT); | |
3852 | } else { | |
3853 | /* try to get next matching BSS */ | |
3854 | at76_set_mac_state(priv, MAC_JOINING); | |
3855 | schedule_work(&priv->work_join); | |
3856 | } | |
3857 | ||
3858 | exit: | |
3859 | mutex_unlock(&priv->mtx); | |
3860 | } | |
3861 | ||
3862 | /* Read new bssid in ad-hoc mode */ | |
3863 | static void at76_work_new_bss(struct work_struct *work) | |
99e06e37 | 3864 | { |
89cb7e7f GKH |
3865 | struct at76_priv *priv = container_of(work, struct at76_priv, |
3866 | work_new_bss); | |
99e06e37 | 3867 | int ret; |
89cb7e7f | 3868 | struct mib_mac_mgmt mac_mgmt; |
99e06e37 | 3869 | |
89cb7e7f | 3870 | mutex_lock(&priv->mtx); |
99e06e37 | 3871 | |
89cb7e7f GKH |
3872 | ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, &mac_mgmt, |
3873 | sizeof(struct mib_mac_mgmt)); | |
99e06e37 | 3874 | if (ret < 0) { |
89cb7e7f GKH |
3875 | printk(KERN_ERR "%s: at76_get_mib failed: %d\n", |
3876 | priv->netdev->name, ret); | |
99e06e37 PR |
3877 | goto exit; |
3878 | } | |
3879 | ||
89cb7e7f GKH |
3880 | at76_dbg(DBG_PROGRESS, "ibss_change = 0x%2x", mac_mgmt.ibss_change); |
3881 | memcpy(priv->bssid, mac_mgmt.current_bssid, ETH_ALEN); | |
3882 | at76_dbg(DBG_PROGRESS, "using BSSID %s", mac2str(priv->bssid)); | |
99e06e37 | 3883 | |
89cb7e7f | 3884 | at76_iwevent_bss_connect(priv->netdev, priv->bssid); |
99e06e37 | 3885 | |
89cb7e7f GKH |
3886 | priv->mib_buf.type = MIB_MAC_MGMT; |
3887 | priv->mib_buf.size = 1; | |
3888 | priv->mib_buf.index = offsetof(struct mib_mac_mgmt, ibss_change); | |
3889 | priv->mib_buf.data.byte = 0; | |
3890 | ||
3891 | ret = at76_set_mib(priv, &priv->mib_buf); | |
3892 | if (ret < 0) | |
3893 | printk(KERN_ERR "%s: set_mib (ibss change ok) failed: %d\n", | |
3894 | priv->netdev->name, ret); | |
99e06e37 PR |
3895 | |
3896 | exit: | |
89cb7e7f | 3897 | mutex_unlock(&priv->mtx); |
99e06e37 PR |
3898 | } |
3899 | ||
3900 | static int at76_startup_device(struct at76_priv *priv) | |
3901 | { | |
3902 | struct at76_card_config *ccfg = &priv->card_config; | |
3903 | int ret; | |
3904 | ||
3905 | at76_dbg(DBG_PARAMS, | |
3906 | "%s param: ssid %.*s (%s) mode %s ch %d wep %s key %d " | |
89cb7e7f GKH |
3907 | "keylen %d", priv->netdev->name, priv->essid_size, priv->essid, |
3908 | hex2str(priv->essid, IW_ESSID_MAX_SIZE), | |
99e06e37 PR |
3909 | priv->iw_mode == IW_MODE_ADHOC ? "adhoc" : "infra", |
3910 | priv->channel, priv->wep_enabled ? "enabled" : "disabled", | |
3911 | priv->wep_key_id, priv->wep_keys_len[priv->wep_key_id]); | |
3912 | at76_dbg(DBG_PARAMS, | |
3913 | "%s param: preamble %s rts %d retry %d frag %d " | |
89cb7e7f | 3914 | "txrate %s auth_mode %d", priv->netdev->name, |
99e06e37 PR |
3915 | preambles[priv->preamble_type], priv->rts_threshold, |
3916 | priv->short_retry_limit, priv->frag_threshold, | |
3917 | priv->txrate == TX_RATE_1MBIT ? "1MBit" : priv->txrate == | |
3918 | TX_RATE_2MBIT ? "2MBit" : priv->txrate == | |
3919 | TX_RATE_5_5MBIT ? "5.5MBit" : priv->txrate == | |
3920 | TX_RATE_11MBIT ? "11MBit" : priv->txrate == | |
3921 | TX_RATE_AUTO ? "auto" : "<invalid>", priv->auth_mode); | |
3922 | at76_dbg(DBG_PARAMS, | |
3923 | "%s param: pm_mode %d pm_period %d auth_mode %s " | |
3924 | "scan_times %d %d scan_mode %s", | |
89cb7e7f | 3925 | priv->netdev->name, priv->pm_mode, priv->pm_period, |
99e06e37 PR |
3926 | priv->auth_mode == WLAN_AUTH_OPEN ? "open" : "shared_secret", |
3927 | priv->scan_min_time, priv->scan_max_time, | |
3928 | priv->scan_mode == SCAN_TYPE_ACTIVE ? "active" : "passive"); | |
3929 | ||
3930 | memset(ccfg, 0, sizeof(struct at76_card_config)); | |
3931 | ccfg->promiscuous_mode = 0; | |
3932 | ccfg->short_retry_limit = priv->short_retry_limit; | |
3933 | ||
3934 | if (priv->wep_enabled) { | |
3935 | if (priv->wep_keys_len[priv->wep_key_id] > WEP_SMALL_KEY_LEN) | |
3936 | ccfg->encryption_type = 2; | |
3937 | else | |
3938 | ccfg->encryption_type = 1; | |
3939 | ||
3940 | /* jal: always exclude unencrypted if WEP is active */ | |
3941 | ccfg->exclude_unencrypted = 1; | |
3942 | } else { | |
3943 | ccfg->exclude_unencrypted = 0; | |
3944 | ccfg->encryption_type = 0; | |
3945 | } | |
3946 | ||
3947 | ccfg->rts_threshold = cpu_to_le16(priv->rts_threshold); | |
3948 | ccfg->fragmentation_threshold = cpu_to_le16(priv->frag_threshold); | |
3949 | ||
3950 | memcpy(ccfg->basic_rate_set, hw_rates, 4); | |
3951 | /* jal: really needed, we do a set_mib for autorate later ??? */ | |
3952 | ccfg->auto_rate_fallback = (priv->txrate == TX_RATE_AUTO ? 1 : 0); | |
3953 | ccfg->channel = priv->channel; | |
3954 | ccfg->privacy_invoked = priv->wep_enabled; | |
3955 | memcpy(ccfg->current_ssid, priv->essid, IW_ESSID_MAX_SIZE); | |
3956 | ccfg->ssid_len = priv->essid_size; | |
3957 | ||
3958 | ccfg->wep_default_key_id = priv->wep_key_id; | |
89cb7e7f | 3959 | memcpy(ccfg->wep_default_key_value, priv->wep_keys, 4 * WEP_KEY_LEN); |
99e06e37 PR |
3960 | |
3961 | ccfg->short_preamble = priv->preamble_type; | |
3962 | ccfg->beacon_period = cpu_to_le16(priv->beacon_period); | |
3963 | ||
3964 | ret = at76_set_card_command(priv->udev, CMD_STARTUP, &priv->card_config, | |
3965 | sizeof(struct at76_card_config)); | |
3966 | if (ret < 0) { | |
3967 | printk(KERN_ERR "%s: at76_set_card_command failed: %d\n", | |
89cb7e7f | 3968 | priv->netdev->name, ret); |
99e06e37 PR |
3969 | return ret; |
3970 | } | |
3971 | ||
3972 | at76_wait_completion(priv, CMD_STARTUP); | |
3973 | ||
3974 | /* remove BSSID from previous run */ | |
3975 | memset(priv->bssid, 0, ETH_ALEN); | |
3976 | ||
3977 | if (at76_set_radio(priv, 1) == 1) | |
3978 | at76_wait_completion(priv, CMD_RADIO_ON); | |
3979 | ||
3980 | ret = at76_set_preamble(priv, priv->preamble_type); | |
3981 | if (ret < 0) | |
3982 | return ret; | |
3983 | ||
3984 | ret = at76_set_frag(priv, priv->frag_threshold); | |
3985 | if (ret < 0) | |
3986 | return ret; | |
3987 | ||
3988 | ret = at76_set_rts(priv, priv->rts_threshold); | |
3989 | if (ret < 0) | |
3990 | return ret; | |
3991 | ||
3992 | ret = at76_set_autorate_fallback(priv, | |
3993 | priv->txrate == TX_RATE_AUTO ? 1 : 0); | |
3994 | if (ret < 0) | |
3995 | return ret; | |
3996 | ||
3997 | ret = at76_set_pm_mode(priv); | |
3998 | if (ret < 0) | |
3999 | return ret; | |
4000 | ||
4001 | if (at76_debug & DBG_MIB) { | |
4002 | at76_dump_mib_mac(priv); | |
4003 | at76_dump_mib_mac_addr(priv); | |
4004 | at76_dump_mib_mac_mgmt(priv); | |
4005 | at76_dump_mib_mac_wep(priv); | |
4006 | at76_dump_mib_mdomain(priv); | |
4007 | at76_dump_mib_phy(priv); | |
4008 | at76_dump_mib_local(priv); | |
4009 | } | |
4010 | ||
4011 | return 0; | |
4012 | } | |
4013 | ||
89cb7e7f GKH |
4014 | /* Restart the interface */ |
4015 | static void at76_dwork_restart(struct work_struct *work) | |
4016 | { | |
4017 | struct at76_priv *priv = container_of(work, struct at76_priv, | |
4018 | dwork_restart.work); | |
4019 | ||
4020 | mutex_lock(&priv->mtx); | |
4021 | ||
4022 | netif_carrier_off(priv->netdev); /* stop netdev watchdog */ | |
4023 | netif_stop_queue(priv->netdev); /* stop tx data packets */ | |
4024 | ||
4025 | at76_startup_device(priv); | |
4026 | ||
4027 | if (priv->iw_mode != IW_MODE_MONITOR) { | |
4028 | priv->netdev->type = ARPHRD_ETHER; | |
4029 | at76_set_mac_state(priv, MAC_SCANNING); | |
4030 | schedule_work(&priv->work_start_scan); | |
4031 | } else { | |
4032 | priv->netdev->type = ARPHRD_IEEE80211_RADIOTAP; | |
4033 | at76_start_monitor(priv); | |
4034 | } | |
4035 | ||
4036 | mutex_unlock(&priv->mtx); | |
4037 | } | |
4038 | ||
4039 | /* Initiate scanning */ | |
4040 | static void at76_work_start_scan(struct work_struct *work) | |
4041 | { | |
4042 | struct at76_priv *priv = container_of(work, struct at76_priv, | |
4043 | work_start_scan); | |
4044 | int ret; | |
4045 | ||
4046 | mutex_lock(&priv->mtx); | |
4047 | ||
4048 | WARN_ON(priv->mac_state != MAC_SCANNING); | |
4049 | if (priv->mac_state != MAC_SCANNING) | |
4050 | goto exit; | |
4051 | ||
4052 | /* only clear the bss list when a scan is actively initiated, | |
4053 | * otherwise simply rely on at76_bss_list_timeout */ | |
4054 | if (priv->scan_state == SCAN_IN_PROGRESS) { | |
4055 | at76_free_bss_list(priv); | |
4056 | priv->scan_need_any = 1; | |
4057 | } else | |
4058 | priv->scan_need_any = 0; | |
4059 | ||
4060 | ret = at76_start_scan(priv, 1); | |
4061 | ||
4062 | if (ret < 0) | |
4063 | printk(KERN_ERR "%s: %s: start_scan failed with %d\n", | |
4064 | priv->netdev->name, __func__, ret); | |
4065 | else { | |
4066 | at76_dbg(DBG_MGMT_TIMER, | |
4067 | "%s:%d: starting mgmt_timer for %d ticks", | |
4068 | __func__, __LINE__, SCAN_POLL_INTERVAL); | |
4069 | schedule_delayed_work(&priv->dwork_get_scan, | |
4070 | SCAN_POLL_INTERVAL); | |
4071 | } | |
4072 | ||
4073 | exit: | |
4074 | mutex_unlock(&priv->mtx); | |
4075 | } | |
4076 | ||
99e06e37 PR |
4077 | /* Enable or disable promiscuous mode */ |
4078 | static void at76_work_set_promisc(struct work_struct *work) | |
4079 | { | |
4080 | struct at76_priv *priv = container_of(work, struct at76_priv, | |
4081 | work_set_promisc); | |
4082 | int ret = 0; | |
4083 | ||
4084 | mutex_lock(&priv->mtx); | |
4085 | ||
4086 | priv->mib_buf.type = MIB_LOCAL; | |
4087 | priv->mib_buf.size = 1; | |
4088 | priv->mib_buf.index = offsetof(struct mib_local, promiscuous_mode); | |
4089 | priv->mib_buf.data.byte = priv->promisc ? 1 : 0; | |
4090 | ||
4091 | ret = at76_set_mib(priv, &priv->mib_buf); | |
4092 | if (ret < 0) | |
4093 | printk(KERN_ERR "%s: set_mib (promiscuous_mode) failed: %d\n", | |
89cb7e7f | 4094 | priv->netdev->name, ret); |
99e06e37 PR |
4095 | |
4096 | mutex_unlock(&priv->mtx); | |
4097 | } | |
4098 | ||
4099 | /* Submit Rx urb back to the device */ | |
4100 | static void at76_work_submit_rx(struct work_struct *work) | |
4101 | { | |
4102 | struct at76_priv *priv = container_of(work, struct at76_priv, | |
4103 | work_submit_rx); | |
4104 | ||
4105 | mutex_lock(&priv->mtx); | |
4106 | at76_submit_rx_urb(priv); | |
4107 | mutex_unlock(&priv->mtx); | |
4108 | } | |
4109 | ||
89cb7e7f GKH |
4110 | /* We got an association response */ |
4111 | static void at76_rx_mgmt_assoc(struct at76_priv *priv, | |
4112 | struct at76_rx_buffer *buf) | |
99e06e37 | 4113 | { |
89cb7e7f GKH |
4114 | struct ieee80211_assoc_response *resp = |
4115 | (struct ieee80211_assoc_response *)buf->packet; | |
4116 | u16 assoc_id = le16_to_cpu(resp->aid); | |
4117 | u16 status = le16_to_cpu(resp->status); | |
4118 | ||
4119 | at76_dbg(DBG_RX_MGMT, "%s: rx AssocResp bssid %s capa 0x%04x status " | |
4120 | "0x%04x assoc_id 0x%04x rates %s", priv->netdev->name, | |
4121 | mac2str(resp->header.addr3), le16_to_cpu(resp->capability), | |
4122 | status, assoc_id, hex2str(resp->info_element->data, | |
4123 | resp->info_element->len)); | |
4124 | ||
4125 | if (priv->mac_state != MAC_ASSOC) { | |
4126 | printk(KERN_INFO "%s: AssocResp in state %s ignored\n", | |
4127 | priv->netdev->name, mac_states[priv->mac_state]); | |
99e06e37 | 4128 | return; |
02227c28 | 4129 | } |
99e06e37 | 4130 | |
89cb7e7f GKH |
4131 | BUG_ON(!priv->curr_bss); |
4132 | ||
4133 | cancel_delayed_work(&priv->dwork_assoc); | |
4134 | if (status == WLAN_STATUS_SUCCESS) { | |
4135 | struct bss_info *ptr = priv->curr_bss; | |
4136 | priv->assoc_id = assoc_id & 0x3fff; | |
4137 | /* update iwconfig params */ | |
4138 | memcpy(priv->bssid, ptr->bssid, ETH_ALEN); | |
4139 | memcpy(priv->essid, ptr->ssid, ptr->ssid_len); | |
4140 | priv->essid_size = ptr->ssid_len; | |
4141 | priv->channel = ptr->channel; | |
4142 | schedule_work(&priv->work_assoc_done); | |
4143 | } else { | |
4144 | at76_set_mac_state(priv, MAC_JOINING); | |
4145 | schedule_work(&priv->work_join); | |
99e06e37 | 4146 | } |
89cb7e7f | 4147 | } |
99e06e37 | 4148 | |
89cb7e7f GKH |
4149 | /* Process disassociation request from the AP */ |
4150 | static void at76_rx_mgmt_disassoc(struct at76_priv *priv, | |
4151 | struct at76_rx_buffer *buf) | |
4152 | { | |
4153 | struct ieee80211_disassoc *resp = | |
4154 | (struct ieee80211_disassoc *)buf->packet; | |
4155 | struct ieee80211_hdr_3addr *mgmt = &resp->header; | |
4156 | ||
4157 | at76_dbg(DBG_RX_MGMT, | |
4158 | "%s: rx DisAssoc bssid %s reason 0x%04x destination %s", | |
4159 | priv->netdev->name, mac2str(mgmt->addr3), | |
4160 | le16_to_cpu(resp->reason), mac2str(mgmt->addr1)); | |
4161 | ||
4162 | /* We are not connected, ignore */ | |
4163 | if (priv->mac_state == MAC_SCANNING || priv->mac_state == MAC_INIT | |
4164 | || !priv->curr_bss) | |
4165 | return; | |
02227c28 | 4166 | |
89cb7e7f GKH |
4167 | /* Not our BSSID, ignore */ |
4168 | if (compare_ether_addr(mgmt->addr3, priv->curr_bss->bssid)) | |
4169 | return; | |
02227c28 | 4170 | |
89cb7e7f GKH |
4171 | /* Not for our STA and not broadcast, ignore */ |
4172 | if (compare_ether_addr(priv->netdev->dev_addr, mgmt->addr1) | |
4173 | && !is_broadcast_ether_addr(mgmt->addr1)) | |
4174 | return; | |
02227c28 | 4175 | |
89cb7e7f GKH |
4176 | if (priv->mac_state != MAC_ASSOC && priv->mac_state != MAC_CONNECTED |
4177 | && priv->mac_state != MAC_JOINING) { | |
4178 | printk(KERN_INFO "%s: DisAssoc in state %s ignored\n", | |
4179 | priv->netdev->name, mac_states[priv->mac_state]); | |
4180 | return; | |
4181 | } | |
02227c28 | 4182 | |
89cb7e7f GKH |
4183 | if (priv->mac_state == MAC_CONNECTED) { |
4184 | netif_carrier_off(priv->netdev); | |
4185 | netif_stop_queue(priv->netdev); | |
4186 | at76_iwevent_bss_disconnect(priv->netdev); | |
4187 | } | |
4188 | cancel_delayed_work(&priv->dwork_get_scan); | |
4189 | cancel_delayed_work(&priv->dwork_beacon); | |
4190 | cancel_delayed_work(&priv->dwork_auth); | |
4191 | cancel_delayed_work(&priv->dwork_assoc); | |
4192 | at76_set_mac_state(priv, MAC_JOINING); | |
4193 | schedule_work(&priv->work_join); | |
99e06e37 PR |
4194 | } |
4195 | ||
89cb7e7f GKH |
4196 | static void at76_rx_mgmt_auth(struct at76_priv *priv, |
4197 | struct at76_rx_buffer *buf) | |
99e06e37 | 4198 | { |
89cb7e7f GKH |
4199 | struct ieee80211_auth *resp = (struct ieee80211_auth *)buf->packet; |
4200 | struct ieee80211_hdr_3addr *mgmt = &resp->header; | |
4201 | int seq_nr = le16_to_cpu(resp->transaction); | |
4202 | int alg = le16_to_cpu(resp->algorithm); | |
4203 | int status = le16_to_cpu(resp->status); | |
4204 | ||
4205 | at76_dbg(DBG_RX_MGMT, | |
4206 | "%s: rx AuthFrame bssid %s alg %d seq_nr %d status %d " | |
4207 | "destination %s", priv->netdev->name, mac2str(mgmt->addr3), | |
4208 | alg, seq_nr, status, mac2str(mgmt->addr1)); | |
4209 | ||
4210 | if (alg == WLAN_AUTH_SHARED_KEY && seq_nr == 2) | |
4211 | at76_dbg(DBG_RX_MGMT, "%s: AuthFrame challenge %s ...", | |
4212 | priv->netdev->name, hex2str(resp->info_element, 18)); | |
4213 | ||
4214 | if (priv->mac_state != MAC_AUTH) { | |
4215 | printk(KERN_INFO "%s: ignored AuthFrame in state %s\n", | |
4216 | priv->netdev->name, mac_states[priv->mac_state]); | |
4217 | return; | |
99e06e37 | 4218 | } |
89cb7e7f GKH |
4219 | if (priv->auth_mode != alg) { |
4220 | printk(KERN_INFO "%s: ignored AuthFrame for alg %d\n", | |
4221 | priv->netdev->name, alg); | |
4222 | return; | |
02227c28 | 4223 | } |
99e06e37 | 4224 | |
89cb7e7f | 4225 | BUG_ON(!priv->curr_bss); |
99e06e37 | 4226 | |
89cb7e7f GKH |
4227 | /* Not our BSSID or not for our STA, ignore */ |
4228 | if (compare_ether_addr(mgmt->addr3, priv->curr_bss->bssid) | |
4229 | || compare_ether_addr(priv->netdev->dev_addr, mgmt->addr1)) | |
4230 | return; | |
4231 | ||
4232 | cancel_delayed_work(&priv->dwork_auth); | |
4233 | if (status != WLAN_STATUS_SUCCESS) { | |
4234 | /* try to join next bss */ | |
4235 | at76_set_mac_state(priv, MAC_JOINING); | |
4236 | schedule_work(&priv->work_join); | |
4237 | return; | |
99e06e37 PR |
4238 | } |
4239 | ||
89cb7e7f GKH |
4240 | if (priv->auth_mode == WLAN_AUTH_OPEN || seq_nr == 4) { |
4241 | priv->retries = ASSOC_RETRIES; | |
4242 | at76_set_mac_state(priv, MAC_ASSOC); | |
4243 | at76_assoc_req(priv, priv->curr_bss); | |
4244 | at76_dbg(DBG_MGMT_TIMER, | |
4245 | "%s:%d: starting mgmt_timer + HZ", __func__, __LINE__); | |
4246 | schedule_delayed_work(&priv->dwork_assoc, ASSOC_TIMEOUT); | |
4247 | return; | |
99e06e37 PR |
4248 | } |
4249 | ||
89cb7e7f GKH |
4250 | WARN_ON(seq_nr != 2); |
4251 | at76_auth_req(priv, priv->curr_bss, seq_nr + 1, resp->info_element); | |
4252 | at76_dbg(DBG_MGMT_TIMER, "%s:%d: starting mgmt_timer + HZ", __func__, | |
4253 | __LINE__); | |
4254 | schedule_delayed_work(&priv->dwork_auth, AUTH_TIMEOUT); | |
4255 | } | |
02227c28 | 4256 | |
89cb7e7f GKH |
4257 | static void at76_rx_mgmt_deauth(struct at76_priv *priv, |
4258 | struct at76_rx_buffer *buf) | |
4259 | { | |
4260 | struct ieee80211_disassoc *resp = | |
4261 | (struct ieee80211_disassoc *)buf->packet; | |
4262 | struct ieee80211_hdr_3addr *mgmt = &resp->header; | |
4263 | ||
4264 | at76_dbg(DBG_RX_MGMT | DBG_PROGRESS, | |
4265 | "%s: rx DeAuth bssid %s reason 0x%04x destination %s", | |
4266 | priv->netdev->name, mac2str(mgmt->addr3), | |
4267 | le16_to_cpu(resp->reason), mac2str(mgmt->addr1)); | |
4268 | ||
4269 | if (priv->mac_state != MAC_AUTH && priv->mac_state != MAC_ASSOC | |
4270 | && priv->mac_state != MAC_CONNECTED) { | |
4271 | printk(KERN_INFO "%s: DeAuth in state %s ignored\n", | |
4272 | priv->netdev->name, mac_states[priv->mac_state]); | |
4273 | return; | |
4274 | } | |
02227c28 | 4275 | |
89cb7e7f | 4276 | BUG_ON(!priv->curr_bss); |
02227c28 | 4277 | |
89cb7e7f GKH |
4278 | /* Not our BSSID, ignore */ |
4279 | if (compare_ether_addr(mgmt->addr3, priv->curr_bss->bssid)) | |
4280 | return; | |
02227c28 | 4281 | |
89cb7e7f GKH |
4282 | /* Not for our STA and not broadcast, ignore */ |
4283 | if (compare_ether_addr(priv->netdev->dev_addr, mgmt->addr1) | |
4284 | && !is_broadcast_ether_addr(mgmt->addr1)) | |
4285 | return; | |
02227c28 | 4286 | |
89cb7e7f GKH |
4287 | if (priv->mac_state == MAC_CONNECTED) |
4288 | at76_iwevent_bss_disconnect(priv->netdev); | |
02227c28 | 4289 | |
89cb7e7f GKH |
4290 | at76_set_mac_state(priv, MAC_JOINING); |
4291 | schedule_work(&priv->work_join); | |
4292 | cancel_delayed_work(&priv->dwork_get_scan); | |
4293 | cancel_delayed_work(&priv->dwork_beacon); | |
4294 | cancel_delayed_work(&priv->dwork_auth); | |
4295 | cancel_delayed_work(&priv->dwork_assoc); | |
99e06e37 PR |
4296 | } |
4297 | ||
89cb7e7f GKH |
4298 | static void at76_rx_mgmt_beacon(struct at76_priv *priv, |
4299 | struct at76_rx_buffer *buf) | |
99e06e37 | 4300 | { |
89cb7e7f GKH |
4301 | int varpar_len; |
4302 | /* beacon content */ | |
4303 | struct ieee80211_beacon *bdata = (struct ieee80211_beacon *)buf->packet; | |
4304 | struct ieee80211_hdr_3addr *mgmt = &bdata->header; | |
4305 | ||
4306 | struct list_head *lptr; | |
4307 | struct bss_info *match; /* entry matching addr3 with its bssid */ | |
4308 | int new_entry = 0; | |
4309 | int len; | |
4310 | struct ieee80211_info_element *ie; | |
4311 | int have_ssid = 0; | |
4312 | int have_rates = 0; | |
4313 | int have_channel = 0; | |
4314 | int keep_going = 1; | |
4315 | unsigned long flags; | |
4316 | ||
4317 | spin_lock_irqsave(&priv->bss_list_spinlock, flags); | |
4318 | if (priv->mac_state == MAC_CONNECTED) { | |
4319 | /* in state MAC_CONNECTED we use the mgmt_timer to control | |
4320 | the beacon of the BSS */ | |
4321 | BUG_ON(!priv->curr_bss); | |
4322 | ||
4323 | if (!compare_ether_addr(priv->curr_bss->bssid, mgmt->addr3)) { | |
4324 | /* We got our AP's beacon, defer the timeout handler. | |
4325 | Kill pending work first, as schedule_delayed_work() | |
4326 | won't do it. */ | |
4327 | cancel_delayed_work(&priv->dwork_beacon); | |
4328 | schedule_delayed_work(&priv->dwork_beacon, | |
4329 | BEACON_TIMEOUT); | |
4330 | priv->curr_bss->rssi = buf->rssi; | |
4331 | priv->beacons_received++; | |
4332 | goto exit; | |
4333 | } | |
4334 | } | |
99e06e37 | 4335 | |
89cb7e7f GKH |
4336 | /* look if we have this BSS already in the list */ |
4337 | match = NULL; | |
99e06e37 | 4338 | |
89cb7e7f GKH |
4339 | if (!list_empty(&priv->bss_list)) { |
4340 | list_for_each(lptr, &priv->bss_list) { | |
4341 | struct bss_info *bss_ptr = | |
4342 | list_entry(lptr, struct bss_info, list); | |
4343 | if (!compare_ether_addr(bss_ptr->bssid, mgmt->addr3)) { | |
4344 | match = bss_ptr; | |
4345 | break; | |
4346 | } | |
4347 | } | |
02227c28 | 4348 | } |
99e06e37 | 4349 | |
89cb7e7f GKH |
4350 | if (!match) { |
4351 | /* BSS not in the list - append it */ | |
4352 | match = kzalloc(sizeof(struct bss_info), GFP_ATOMIC); | |
4353 | if (!match) { | |
4354 | at76_dbg(DBG_BSS_TABLE, | |
4355 | "%s: cannot kmalloc new bss info (%zd byte)", | |
4356 | priv->netdev->name, sizeof(struct bss_info)); | |
4357 | goto exit; | |
4358 | } | |
4359 | new_entry = 1; | |
4360 | list_add_tail(&match->list, &priv->bss_list); | |
4361 | } | |
02227c28 | 4362 | |
89cb7e7f GKH |
4363 | match->capa = le16_to_cpu(bdata->capability); |
4364 | match->beacon_interval = le16_to_cpu(bdata->beacon_interval); | |
4365 | match->rssi = buf->rssi; | |
4366 | match->link_qual = buf->link_quality; | |
4367 | match->noise_level = buf->noise_level; | |
4368 | memcpy(match->bssid, mgmt->addr3, ETH_ALEN); | |
4369 | at76_dbg(DBG_RX_BEACON, "%s: bssid %s", priv->netdev->name, | |
4370 | mac2str(match->bssid)); | |
4371 | ||
4372 | ie = bdata->info_element; | |
4373 | ||
4374 | /* length of var length beacon parameters */ | |
4375 | varpar_len = min_t(int, le16_to_cpu(buf->wlength) - | |
4376 | sizeof(struct ieee80211_beacon), | |
4377 | BEACON_MAX_DATA_LENGTH); | |
4378 | ||
4379 | /* This routine steps through the bdata->data array to get | |
4380 | * some useful information about the access point. | |
4381 | * Currently, this implementation supports receipt of: SSID, | |
4382 | * supported transfer rates and channel, in any order, with some | |
4383 | * tolerance for intermittent unknown codes (although this | |
4384 | * functionality may not be necessary as the useful information will | |
4385 | * usually arrive in consecutively, but there have been some | |
4386 | * reports of some of the useful information fields arriving in a | |
4387 | * different order). | |
4388 | * It does not support any more IE types although MFIE_TYPE_TIM may | |
4389 | * be supported (on my AP at least). | |
4390 | * The bdata->data array is about 1500 bytes long but only ~36 of those | |
4391 | * bytes are useful, hence the have_ssid etc optimizations. */ | |
4392 | ||
4393 | while (keep_going && | |
4394 | ((&ie->data[ie->len] - (u8 *)bdata->info_element) <= | |
4395 | varpar_len)) { | |
4396 | ||
4397 | switch (ie->id) { | |
4398 | ||
f494b663 | 4399 | case WLAN_EID_SSID: |
89cb7e7f GKH |
4400 | if (have_ssid) |
4401 | break; | |
99e06e37 | 4402 | |
89cb7e7f | 4403 | len = min_t(int, IW_ESSID_MAX_SIZE, ie->len); |
99e06e37 | 4404 | |
89cb7e7f GKH |
4405 | /* we copy only if this is a new entry, |
4406 | or the incoming SSID is not a hidden SSID. This | |
4407 | will protect us from overwriting a real SSID read | |
4408 | in a ProbeResponse with a hidden one from a | |
4409 | following beacon. */ | |
4410 | if (!new_entry && at76_is_hidden_ssid(ie->data, len)) { | |
4411 | have_ssid = 1; | |
4412 | break; | |
4413 | } | |
99e06e37 | 4414 | |
89cb7e7f GKH |
4415 | match->ssid_len = len; |
4416 | memcpy(match->ssid, ie->data, len); | |
4417 | at76_dbg(DBG_RX_BEACON, "%s: SSID - %.*s", | |
4418 | priv->netdev->name, len, match->ssid); | |
4419 | have_ssid = 1; | |
4420 | break; | |
99e06e37 | 4421 | |
f494b663 | 4422 | case WLAN_EID_SUPP_RATES: |
89cb7e7f GKH |
4423 | if (have_rates) |
4424 | break; | |
99e06e37 | 4425 | |
89cb7e7f GKH |
4426 | match->rates_len = |
4427 | min_t(int, sizeof(match->rates), ie->len); | |
4428 | memcpy(match->rates, ie->data, match->rates_len); | |
4429 | have_rates = 1; | |
4430 | at76_dbg(DBG_RX_BEACON, "%s: SUPPORTED RATES %s", | |
4431 | priv->netdev->name, | |
4432 | hex2str(ie->data, ie->len)); | |
4433 | break; | |
99e06e37 | 4434 | |
f494b663 | 4435 | case WLAN_EID_DS_PARAMS: |
89cb7e7f GKH |
4436 | if (have_channel) |
4437 | break; | |
99e06e37 | 4438 | |
89cb7e7f GKH |
4439 | match->channel = ie->data[0]; |
4440 | have_channel = 1; | |
4441 | at76_dbg(DBG_RX_BEACON, "%s: CHANNEL - %d", | |
4442 | priv->netdev->name, match->channel); | |
4443 | break; | |
99e06e37 | 4444 | |
f494b663 KV |
4445 | case WLAN_EID_CF_PARAMS: |
4446 | case WLAN_EID_TIM: | |
4447 | case WLAN_EID_IBSS_PARAMS: | |
89cb7e7f GKH |
4448 | default: |
4449 | at76_dbg(DBG_RX_BEACON, "%s: beacon IE id %d len %d %s", | |
4450 | priv->netdev->name, ie->id, ie->len, | |
4451 | hex2str(ie->data, ie->len)); | |
4452 | break; | |
4453 | } | |
99e06e37 | 4454 | |
89cb7e7f GKH |
4455 | /* advance to the next informational element */ |
4456 | next_ie(&ie); | |
99e06e37 | 4457 | |
89cb7e7f GKH |
4458 | /* Optimization: after all, the bdata->data array is |
4459 | * varpar_len bytes long, whereas we get all of the useful | |
4460 | * information after only ~36 bytes, this saves us a lot of | |
4461 | * time (and trouble as the remaining portion of the array | |
4462 | * could be full of junk) | |
4463 | * Comment this out if you want to see what other information | |
4464 | * comes from the AP - although little of it may be useful */ | |
4465 | } | |
99e06e37 | 4466 | |
89cb7e7f GKH |
4467 | at76_dbg(DBG_RX_BEACON, "%s: Finished processing beacon data", |
4468 | priv->netdev->name); | |
99e06e37 | 4469 | |
89cb7e7f | 4470 | match->last_rx = jiffies; /* record last rx of beacon */ |
99e06e37 | 4471 | |
89cb7e7f GKH |
4472 | exit: |
4473 | spin_unlock_irqrestore(&priv->bss_list_spinlock, flags); | |
02227c28 | 4474 | } |
99e06e37 | 4475 | |
89cb7e7f GKH |
4476 | /* Calculate the link level from a given rx_buffer */ |
4477 | static void at76_calc_level(struct at76_priv *priv, struct at76_rx_buffer *buf, | |
4478 | struct iw_quality *qual) | |
02227c28 | 4479 | { |
89cb7e7f GKH |
4480 | /* just a guess for now, might be different for other chips */ |
4481 | int max_rssi = 42; | |
99e06e37 | 4482 | |
89cb7e7f GKH |
4483 | qual->level = (buf->rssi * 100 / max_rssi); |
4484 | if (qual->level > 100) | |
4485 | qual->level = 100; | |
4486 | qual->updated |= IW_QUAL_LEVEL_UPDATED; | |
4487 | } | |
99e06e37 | 4488 | |
89cb7e7f GKH |
4489 | /* Calculate the link quality from a given rx_buffer */ |
4490 | static void at76_calc_qual(struct at76_priv *priv, struct at76_rx_buffer *buf, | |
4491 | struct iw_quality *qual) | |
4492 | { | |
4493 | if (at76_is_intersil(priv->board_type)) | |
4494 | qual->qual = buf->link_quality; | |
4495 | else { | |
4496 | unsigned long elapsed; | |
99e06e37 | 4497 | |
89cb7e7f GKH |
4498 | /* Update qual at most once a second */ |
4499 | elapsed = jiffies - priv->beacons_last_qual; | |
4500 | if (elapsed < 1 * HZ) | |
4501 | return; | |
99e06e37 | 4502 | |
89cb7e7f GKH |
4503 | qual->qual = qual->level * priv->beacons_received * |
4504 | msecs_to_jiffies(priv->beacon_period) / elapsed; | |
02227c28 | 4505 | |
89cb7e7f GKH |
4506 | priv->beacons_last_qual = jiffies; |
4507 | priv->beacons_received = 0; | |
4508 | } | |
4509 | qual->qual = (qual->qual > 100) ? 100 : qual->qual; | |
4510 | qual->updated |= IW_QUAL_QUAL_UPDATED; | |
99e06e37 PR |
4511 | } |
4512 | ||
89cb7e7f GKH |
4513 | /* Calculate the noise quality from a given rx_buffer */ |
4514 | static void at76_calc_noise(struct at76_priv *priv, struct at76_rx_buffer *buf, | |
4515 | struct iw_quality *qual) | |
99e06e37 | 4516 | { |
89cb7e7f GKH |
4517 | qual->noise = 0; |
4518 | qual->updated |= IW_QUAL_NOISE_INVALID; | |
4519 | } | |
02227c28 | 4520 | |
89cb7e7f GKH |
4521 | static void at76_update_wstats(struct at76_priv *priv, |
4522 | struct at76_rx_buffer *buf) | |
4523 | { | |
4524 | struct iw_quality *qual = &priv->wstats.qual; | |
02227c28 | 4525 | |
89cb7e7f GKH |
4526 | if (buf->rssi && priv->mac_state == MAC_CONNECTED) { |
4527 | qual->updated = 0; | |
4528 | at76_calc_level(priv, buf, qual); | |
4529 | at76_calc_qual(priv, buf, qual); | |
4530 | at76_calc_noise(priv, buf, qual); | |
4531 | } else { | |
4532 | qual->qual = 0; | |
4533 | qual->level = 0; | |
4534 | qual->noise = 0; | |
4535 | qual->updated = IW_QUAL_ALL_INVALID; | |
4536 | } | |
4537 | } | |
02227c28 | 4538 | |
89cb7e7f GKH |
4539 | static void at76_rx_mgmt(struct at76_priv *priv, struct at76_rx_buffer *buf) |
4540 | { | |
4541 | struct ieee80211_hdr_3addr *mgmt = | |
4542 | (struct ieee80211_hdr_3addr *)buf->packet; | |
4543 | u16 framectl = le16_to_cpu(mgmt->frame_ctl); | |
4544 | ||
4545 | /* update wstats */ | |
4546 | if (priv->mac_state != MAC_INIT && priv->mac_state != MAC_SCANNING) { | |
4547 | /* jal: this is a dirty hack needed by Tim in ad-hoc mode */ | |
4548 | /* Data packets always seem to have a 0 link level, so we | |
4549 | only read link quality info from management packets. | |
4550 | Atmel driver actually averages the present, and previous | |
4551 | values, we just present the raw value at the moment - TJS */ | |
4552 | if (priv->iw_mode == IW_MODE_ADHOC | |
4553 | || (priv->curr_bss | |
4554 | && !compare_ether_addr(mgmt->addr3, | |
4555 | priv->curr_bss->bssid))) | |
4556 | at76_update_wstats(priv, buf); | |
02227c28 | 4557 | } |
99e06e37 | 4558 | |
89cb7e7f GKH |
4559 | at76_dbg(DBG_RX_MGMT_CONTENT, "%s rx mgmt framectl 0x%x %s", |
4560 | priv->netdev->name, framectl, | |
4561 | hex2str(mgmt, le16_to_cpu(buf->wlength))); | |
4562 | ||
4563 | switch (framectl & IEEE80211_FCTL_STYPE) { | |
4564 | case IEEE80211_STYPE_BEACON: | |
4565 | case IEEE80211_STYPE_PROBE_RESP: | |
4566 | at76_rx_mgmt_beacon(priv, buf); | |
4567 | break; | |
99e06e37 | 4568 | |
89cb7e7f GKH |
4569 | case IEEE80211_STYPE_ASSOC_RESP: |
4570 | at76_rx_mgmt_assoc(priv, buf); | |
4571 | break; | |
99e06e37 | 4572 | |
89cb7e7f GKH |
4573 | case IEEE80211_STYPE_DISASSOC: |
4574 | at76_rx_mgmt_disassoc(priv, buf); | |
4575 | break; | |
99e06e37 | 4576 | |
89cb7e7f GKH |
4577 | case IEEE80211_STYPE_AUTH: |
4578 | at76_rx_mgmt_auth(priv, buf); | |
4579 | break; | |
99e06e37 | 4580 | |
89cb7e7f GKH |
4581 | case IEEE80211_STYPE_DEAUTH: |
4582 | at76_rx_mgmt_deauth(priv, buf); | |
02227c28 | 4583 | break; |
89cb7e7f | 4584 | |
02227c28 | 4585 | default: |
89cb7e7f GKH |
4586 | printk(KERN_DEBUG "%s: ignoring frame with framectl 0x%04x\n", |
4587 | priv->netdev->name, framectl); | |
99e06e37 | 4588 | } |
99e06e37 | 4589 | |
89cb7e7f | 4590 | return; |
99e06e37 PR |
4591 | } |
4592 | ||
89cb7e7f GKH |
4593 | /* Convert the 802.11 header into an ethernet-style header, make skb |
4594 | * ready for consumption by netif_rx() */ | |
4595 | static void at76_ieee80211_to_eth(struct sk_buff *skb, int iw_mode) | |
99e06e37 | 4596 | { |
89cb7e7f GKH |
4597 | struct ieee80211_hdr_3addr *i802_11_hdr; |
4598 | struct ethhdr *eth_hdr_p; | |
4599 | u8 *src_addr; | |
4600 | u8 *dest_addr; | |
99e06e37 | 4601 | |
89cb7e7f | 4602 | i802_11_hdr = (struct ieee80211_hdr_3addr *)skb->data; |
99e06e37 | 4603 | |
89cb7e7f GKH |
4604 | /* That would be the ethernet header if the hardware converted |
4605 | * the frame for us. Make sure the source and the destination | |
4606 | * match the 802.11 header. Which hardware does it? */ | |
4607 | eth_hdr_p = (struct ethhdr *)skb_pull(skb, IEEE80211_3ADDR_LEN); | |
99e06e37 | 4608 | |
89cb7e7f GKH |
4609 | dest_addr = i802_11_hdr->addr1; |
4610 | if (iw_mode == IW_MODE_ADHOC) | |
4611 | src_addr = i802_11_hdr->addr2; | |
4612 | else | |
4613 | src_addr = i802_11_hdr->addr3; | |
99e06e37 | 4614 | |
89cb7e7f GKH |
4615 | if (!compare_ether_addr(eth_hdr_p->h_source, src_addr) && |
4616 | !compare_ether_addr(eth_hdr_p->h_dest, dest_addr)) | |
4617 | /* Yes, we already have an ethernet header */ | |
4618 | skb_reset_mac_header(skb); | |
4619 | else { | |
4620 | u16 len; | |
4621 | ||
4622 | /* Need to build an ethernet header */ | |
4623 | if (!memcmp(skb->data, snapsig, sizeof(snapsig))) { | |
4624 | /* SNAP frame - decapsulate, keep proto */ | |
4625 | skb_push(skb, offsetof(struct ethhdr, h_proto) - | |
4626 | sizeof(rfc1042sig)); | |
4627 | len = 0; | |
4628 | } else { | |
4629 | /* 802.3 frame, proto is length */ | |
4630 | len = skb->len; | |
4631 | skb_push(skb, ETH_HLEN); | |
4632 | } | |
99e06e37 | 4633 | |
89cb7e7f GKH |
4634 | skb_reset_mac_header(skb); |
4635 | eth_hdr_p = eth_hdr(skb); | |
4636 | /* This needs to be done in this order (eth_hdr_p->h_dest may | |
4637 | * overlap src_addr) */ | |
4638 | memcpy(eth_hdr_p->h_source, src_addr, ETH_ALEN); | |
4639 | memcpy(eth_hdr_p->h_dest, dest_addr, ETH_ALEN); | |
4640 | if (len) | |
4641 | eth_hdr_p->h_proto = htons(len); | |
99e06e37 PR |
4642 | } |
4643 | ||
89cb7e7f | 4644 | skb->protocol = eth_type_trans(skb, skb->dev); |
99e06e37 PR |
4645 | } |
4646 | ||
89cb7e7f GKH |
4647 | /* Check for fragmented data in priv->rx_skb. If the packet was no fragment |
4648 | or it was the last of a fragment set a skb containing the whole packet | |
4649 | is returned for further processing. Otherwise we get NULL and are | |
4650 | done and the packet is either stored inside the fragment buffer | |
4651 | or thrown away. Every returned skb starts with the ieee802_11 header | |
4652 | and contains _no_ FCS at the end */ | |
4653 | static struct sk_buff *at76_check_for_rx_frags(struct at76_priv *priv) | |
99e06e37 | 4654 | { |
89cb7e7f GKH |
4655 | struct sk_buff *skb = priv->rx_skb; |
4656 | struct at76_rx_buffer *buf = (struct at76_rx_buffer *)skb->data; | |
4657 | struct ieee80211_hdr_3addr *i802_11_hdr = | |
4658 | (struct ieee80211_hdr_3addr *)buf->packet; | |
4659 | /* seq_ctrl, fragment_number, sequence number of new packet */ | |
4660 | u16 sctl = le16_to_cpu(i802_11_hdr->seq_ctl); | |
4661 | u16 fragnr = sctl & 0xf; | |
4662 | u16 seqnr = sctl >> 4; | |
4663 | u16 frame_ctl = le16_to_cpu(i802_11_hdr->frame_ctl); | |
99e06e37 | 4664 | |
89cb7e7f GKH |
4665 | /* Length including the IEEE802.11 header, but without the trailing |
4666 | * FCS and without the Atmel Rx header */ | |
4667 | int length = le16_to_cpu(buf->wlength) - IEEE80211_FCS_LEN; | |
99e06e37 | 4668 | |
89cb7e7f GKH |
4669 | /* where does the data payload start in skb->data ? */ |
4670 | u8 *data = i802_11_hdr->payload; | |
99e06e37 | 4671 | |
89cb7e7f GKH |
4672 | /* length of payload, excl. the trailing FCS */ |
4673 | int data_len = length - IEEE80211_3ADDR_LEN; | |
4674 | ||
4675 | int i; | |
4676 | struct rx_data_buf *bptr, *optr; | |
4677 | unsigned long oldest = ~0UL; | |
4678 | ||
4679 | at76_dbg(DBG_RX_FRAGS, | |
4680 | "%s: rx data frame_ctl %04x addr2 %s seq/frag %d/%d " | |
4681 | "length %d data %d: %s ...", priv->netdev->name, frame_ctl, | |
4682 | mac2str(i802_11_hdr->addr2), seqnr, fragnr, length, data_len, | |
4683 | hex2str(data, 32)); | |
4684 | ||
4685 | at76_dbg(DBG_RX_FRAGS_SKB, "%s: incoming skb: head %p data %p " | |
4686 | "tail %p end %p len %d", priv->netdev->name, skb->head, | |
4687 | skb->data, skb_tail_pointer(skb), skb_end_pointer(skb), | |
4688 | skb->len); | |
4689 | ||
4690 | if (data_len < 0) { | |
4691 | /* make sure data starts in the buffer */ | |
4692 | printk(KERN_INFO "%s: data frame too short\n", | |
4693 | priv->netdev->name); | |
4694 | return NULL; | |
02227c28 | 4695 | } |
99e06e37 | 4696 | |
89cb7e7f GKH |
4697 | WARN_ON(length <= AT76_RX_HDRLEN); |
4698 | if (length <= AT76_RX_HDRLEN) | |
4699 | return NULL; | |
99e06e37 | 4700 | |
89cb7e7f GKH |
4701 | /* remove the at76_rx_buffer header - we don't need it anymore */ |
4702 | /* we need the IEEE802.11 header (for the addresses) if this packet | |
4703 | is the first of a chain */ | |
4704 | skb_pull(skb, AT76_RX_HDRLEN); | |
4705 | ||
4706 | /* remove FCS at end */ | |
4707 | skb_trim(skb, length); | |
4708 | ||
4709 | at76_dbg(DBG_RX_FRAGS_SKB, "%s: trimmed skb: head %p data %p tail %p " | |
4710 | "end %p len %d data %p data_len %d", priv->netdev->name, | |
4711 | skb->head, skb->data, skb_tail_pointer(skb), | |
4712 | skb_end_pointer(skb), skb->len, data, data_len); | |
4713 | ||
4714 | if (fragnr == 0 && !(frame_ctl & IEEE80211_FCTL_MOREFRAGS)) { | |
4715 | /* unfragmented packet received */ | |
4716 | /* Use a new skb for the next receive */ | |
4717 | priv->rx_skb = NULL; | |
4718 | at76_dbg(DBG_RX_FRAGS, "%s: unfragmented", priv->netdev->name); | |
4719 | return skb; | |
99e06e37 PR |
4720 | } |
4721 | ||
89cb7e7f GKH |
4722 | /* look if we've got a chain for the sender address. |
4723 | afterwards optr points to first free or the oldest entry, | |
4724 | or, if i < NR_RX_DATA_BUF, bptr points to the entry for the | |
4725 | sender address */ | |
4726 | /* determining the oldest entry doesn't cope with jiffies wrapping | |
4727 | but I don't care to delete a young entry at these rare moments ... */ | |
4728 | ||
4729 | bptr = priv->rx_data; | |
4730 | optr = NULL; | |
4731 | for (i = 0; i < NR_RX_DATA_BUF; i++, bptr++) { | |
4732 | if (!bptr->skb) { | |
4733 | optr = bptr; | |
4734 | oldest = 0UL; | |
4735 | continue; | |
4736 | } | |
02227c28 | 4737 | |
89cb7e7f GKH |
4738 | if (!compare_ether_addr(i802_11_hdr->addr2, bptr->sender)) |
4739 | break; | |
99e06e37 | 4740 | |
89cb7e7f GKH |
4741 | if (!optr) { |
4742 | optr = bptr; | |
4743 | oldest = bptr->last_rx; | |
4744 | } else if (bptr->last_rx < oldest) | |
4745 | optr = bptr; | |
4746 | } | |
99e06e37 | 4747 | |
89cb7e7f GKH |
4748 | if (i < NR_RX_DATA_BUF) { |
4749 | ||
4750 | at76_dbg(DBG_RX_FRAGS, "%s: %d. cacheentry (seq/frag = %d/%d) " | |
4751 | "matched sender addr", | |
4752 | priv->netdev->name, i, bptr->seqnr, bptr->fragnr); | |
4753 | ||
4754 | /* bptr points to an entry for the sender address */ | |
4755 | if (bptr->seqnr == seqnr) { | |
4756 | int left; | |
4757 | /* the fragment has the current sequence number */ | |
4758 | if (((bptr->fragnr + 1) & 0xf) != fragnr) { | |
4759 | /* wrong fragment number -> ignore it */ | |
4760 | /* is & 0xf necessary above ??? */ | |
4761 | at76_dbg(DBG_RX_FRAGS, | |
4762 | "%s: frag nr mismatch: %d + 1 != %d", | |
4763 | priv->netdev->name, bptr->fragnr, | |
4764 | fragnr); | |
4765 | return NULL; | |
4766 | } | |
4767 | bptr->last_rx = jiffies; | |
4768 | /* the next following fragment number -> | |
4769 | add the data at the end */ | |
4770 | ||
4771 | /* for test only ??? */ | |
4772 | left = skb_tailroom(bptr->skb); | |
4773 | if (left < data_len) | |
4774 | printk(KERN_INFO | |
4775 | "%s: only %d byte free (need %d)\n", | |
4776 | priv->netdev->name, left, data_len); | |
4777 | else | |
4778 | memcpy(skb_put(bptr->skb, data_len), data, | |
4779 | data_len); | |
4780 | ||
4781 | bptr->fragnr = fragnr; | |
4782 | if (frame_ctl & IEEE80211_FCTL_MOREFRAGS) | |
4783 | return NULL; | |
4784 | ||
4785 | /* this was the last fragment - send it */ | |
4786 | skb = bptr->skb; | |
4787 | bptr->skb = NULL; /* free the entry */ | |
4788 | at76_dbg(DBG_RX_FRAGS, "%s: last frag of seq %d", | |
4789 | priv->netdev->name, seqnr); | |
4790 | return skb; | |
4791 | } | |
99e06e37 | 4792 | |
89cb7e7f GKH |
4793 | /* got another sequence number */ |
4794 | if (fragnr == 0) { | |
4795 | /* it's the start of a new chain - replace the | |
4796 | old one by this */ | |
4797 | /* bptr->sender has the correct value already */ | |
4798 | at76_dbg(DBG_RX_FRAGS, | |
4799 | "%s: start of new seq %d, removing old seq %d", | |
4800 | priv->netdev->name, seqnr, bptr->seqnr); | |
4801 | bptr->seqnr = seqnr; | |
4802 | bptr->fragnr = 0; | |
4803 | bptr->last_rx = jiffies; | |
4804 | /* swap bptr->skb and priv->rx_skb */ | |
4805 | skb = bptr->skb; | |
4806 | bptr->skb = priv->rx_skb; | |
4807 | priv->rx_skb = skb; | |
4808 | } else { | |
4809 | /* it from the middle of a new chain -> | |
4810 | delete the old entry and skip the new one */ | |
4811 | at76_dbg(DBG_RX_FRAGS, | |
4812 | "%s: middle of new seq %d (%d) " | |
4813 | "removing old seq %d", | |
4814 | priv->netdev->name, seqnr, fragnr, | |
4815 | bptr->seqnr); | |
4816 | dev_kfree_skb(bptr->skb); | |
4817 | bptr->skb = NULL; | |
4818 | } | |
4819 | return NULL; | |
4820 | } | |
99e06e37 | 4821 | |
89cb7e7f GKH |
4822 | /* if we didn't find a chain for the sender address, optr |
4823 | points either to the first free or the oldest entry */ | |
99e06e37 | 4824 | |
89cb7e7f GKH |
4825 | if (fragnr != 0) { |
4826 | /* this is not the begin of a fragment chain ... */ | |
4827 | at76_dbg(DBG_RX_FRAGS, | |
4828 | "%s: no chain for non-first fragment (%d)", | |
4829 | priv->netdev->name, fragnr); | |
4830 | return NULL; | |
99e06e37 PR |
4831 | } |
4832 | ||
89cb7e7f GKH |
4833 | BUG_ON(!optr); |
4834 | if (optr->skb) { | |
4835 | /* swap the skb's */ | |
4836 | skb = optr->skb; | |
4837 | optr->skb = priv->rx_skb; | |
4838 | priv->rx_skb = skb; | |
99e06e37 | 4839 | |
89cb7e7f GKH |
4840 | at76_dbg(DBG_RX_FRAGS, |
4841 | "%s: free old contents: sender %s seq/frag %d/%d", | |
4842 | priv->netdev->name, mac2str(optr->sender), | |
4843 | optr->seqnr, optr->fragnr); | |
99e06e37 | 4844 | |
89cb7e7f GKH |
4845 | } else { |
4846 | /* take the skb from priv->rx_skb */ | |
4847 | optr->skb = priv->rx_skb; | |
4848 | /* let at76_submit_rx_urb() allocate a new skb */ | |
4849 | priv->rx_skb = NULL; | |
99e06e37 | 4850 | |
89cb7e7f GKH |
4851 | at76_dbg(DBG_RX_FRAGS, "%s: use a free entry", |
4852 | priv->netdev->name); | |
4853 | } | |
4854 | memcpy(optr->sender, i802_11_hdr->addr2, ETH_ALEN); | |
4855 | optr->seqnr = seqnr; | |
4856 | optr->fragnr = 0; | |
4857 | optr->last_rx = jiffies; | |
99e06e37 | 4858 | |
89cb7e7f | 4859 | return NULL; |
02227c28 | 4860 | } |
99e06e37 | 4861 | |
89cb7e7f GKH |
4862 | /* Rx interrupt: we expect the complete data buffer in priv->rx_skb */ |
4863 | static void at76_rx_data(struct at76_priv *priv) | |
02227c28 | 4864 | { |
89cb7e7f GKH |
4865 | struct net_device *netdev = priv->netdev; |
4866 | struct net_device_stats *stats = &priv->stats; | |
4867 | struct sk_buff *skb = priv->rx_skb; | |
4868 | struct at76_rx_buffer *buf = (struct at76_rx_buffer *)skb->data; | |
4869 | struct ieee80211_hdr_3addr *i802_11_hdr; | |
4870 | int length = le16_to_cpu(buf->wlength); | |
99e06e37 | 4871 | |
89cb7e7f GKH |
4872 | at76_dbg(DBG_RX_DATA, "%s received data packet: %s", netdev->name, |
4873 | hex2str(skb->data, AT76_RX_HDRLEN)); | |
99e06e37 | 4874 | |
89cb7e7f GKH |
4875 | at76_dbg(DBG_RX_DATA_CONTENT, "rx packet: %s", |
4876 | hex2str(skb->data + AT76_RX_HDRLEN, length)); | |
99e06e37 | 4877 | |
89cb7e7f GKH |
4878 | skb = at76_check_for_rx_frags(priv); |
4879 | if (!skb) | |
4880 | return; | |
99e06e37 | 4881 | |
89cb7e7f GKH |
4882 | /* Atmel header and the FCS are already removed */ |
4883 | i802_11_hdr = (struct ieee80211_hdr_3addr *)skb->data; | |
99e06e37 | 4884 | |
89cb7e7f GKH |
4885 | skb->dev = netdev; |
4886 | skb->ip_summed = CHECKSUM_NONE; /* TODO: should check CRC */ | |
99e06e37 | 4887 | |
89cb7e7f GKH |
4888 | if (is_broadcast_ether_addr(i802_11_hdr->addr1)) { |
4889 | if (!compare_ether_addr(i802_11_hdr->addr1, netdev->broadcast)) | |
4890 | skb->pkt_type = PACKET_BROADCAST; | |
4891 | else | |
4892 | skb->pkt_type = PACKET_MULTICAST; | |
4893 | } else if (compare_ether_addr(i802_11_hdr->addr1, netdev->dev_addr)) | |
4894 | skb->pkt_type = PACKET_OTHERHOST; | |
99e06e37 | 4895 | |
89cb7e7f | 4896 | at76_ieee80211_to_eth(skb, priv->iw_mode); |
99e06e37 | 4897 | |
89cb7e7f GKH |
4898 | netdev->last_rx = jiffies; |
4899 | netif_rx(skb); | |
4900 | stats->rx_packets++; | |
4901 | stats->rx_bytes += length; | |
99e06e37 | 4902 | |
89cb7e7f GKH |
4903 | return; |
4904 | } | |
99e06e37 | 4905 | |
89cb7e7f GKH |
4906 | static void at76_rx_monitor_mode(struct at76_priv *priv) |
4907 | { | |
4908 | struct at76_rx_radiotap *rt; | |
4909 | u8 *payload; | |
4910 | int skblen; | |
4911 | struct net_device *netdev = priv->netdev; | |
4912 | struct at76_rx_buffer *buf = | |
4913 | (struct at76_rx_buffer *)priv->rx_skb->data; | |
4914 | /* length including the IEEE802.11 header and the trailing FCS, | |
4915 | but not at76_rx_buffer */ | |
4916 | int length = le16_to_cpu(buf->wlength); | |
4917 | struct sk_buff *skb = priv->rx_skb; | |
4918 | struct net_device_stats *stats = &priv->stats; | |
99e06e37 | 4919 | |
89cb7e7f GKH |
4920 | if (length < IEEE80211_FCS_LEN) { |
4921 | /* buffer contains no data */ | |
4922 | at76_dbg(DBG_MONITOR_MODE, | |
4923 | "%s: MONITOR MODE: rx skb without data", | |
4924 | priv->netdev->name); | |
4925 | return; | |
4926 | } | |
99e06e37 | 4927 | |
89cb7e7f | 4928 | skblen = sizeof(struct at76_rx_radiotap) + length; |
99e06e37 | 4929 | |
89cb7e7f GKH |
4930 | skb = dev_alloc_skb(skblen); |
4931 | if (!skb) { | |
4932 | printk(KERN_ERR "%s: MONITOR MODE: dev_alloc_skb for radiotap " | |
4933 | "header returned NULL\n", priv->netdev->name); | |
4934 | return; | |
4935 | } | |
4936 | ||
4937 | skb_put(skb, skblen); | |
4938 | ||
4939 | rt = (struct at76_rx_radiotap *)skb->data; | |
4940 | payload = skb->data + sizeof(struct at76_rx_radiotap); | |
4941 | ||
4942 | rt->rt_hdr.it_version = 0; | |
4943 | rt->rt_hdr.it_pad = 0; | |
4944 | rt->rt_hdr.it_len = cpu_to_le16(sizeof(struct at76_rx_radiotap)); | |
4945 | rt->rt_hdr.it_present = cpu_to_le32(AT76_RX_RADIOTAP_PRESENT); | |
4946 | ||
4947 | rt->rt_tsft = cpu_to_le64(le32_to_cpu(buf->rx_time)); | |
4948 | rt->rt_rate = hw_rates[buf->rx_rate] & (~0x80); | |
4949 | rt->rt_signal = buf->rssi; | |
4950 | rt->rt_noise = buf->noise_level; | |
4951 | rt->rt_flags = IEEE80211_RADIOTAP_F_FCS; | |
4952 | if (buf->fragmentation) | |
4953 | rt->rt_flags |= IEEE80211_RADIOTAP_F_FRAG; | |
4954 | ||
4955 | memcpy(payload, buf->packet, length); | |
4956 | skb->dev = netdev; | |
4957 | skb->ip_summed = CHECKSUM_NONE; | |
4958 | skb_reset_mac_header(skb); | |
4959 | skb->pkt_type = PACKET_OTHERHOST; | |
4960 | skb->protocol = htons(ETH_P_802_2); | |
4961 | ||
4962 | netdev->last_rx = jiffies; | |
4963 | netif_rx(skb); | |
4964 | stats->rx_packets++; | |
4965 | stats->rx_bytes += length; | |
99e06e37 PR |
4966 | } |
4967 | ||
89cb7e7f GKH |
4968 | /* Check if we spy on the sender address in buf and update stats */ |
4969 | static void at76_iwspy_update(struct at76_priv *priv, | |
4970 | struct at76_rx_buffer *buf) | |
99e06e37 | 4971 | { |
89cb7e7f GKH |
4972 | struct ieee80211_hdr_3addr *hdr = |
4973 | (struct ieee80211_hdr_3addr *)buf->packet; | |
4974 | struct iw_quality qual; | |
99e06e37 | 4975 | |
89cb7e7f GKH |
4976 | /* We can only set the level here */ |
4977 | qual.updated = IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID; | |
4978 | qual.level = 0; | |
4979 | qual.noise = 0; | |
4980 | at76_calc_level(priv, buf, &qual); | |
99e06e37 | 4981 | |
89cb7e7f | 4982 | spin_lock_bh(&priv->spy_spinlock); |
02227c28 | 4983 | |
89cb7e7f GKH |
4984 | if (priv->spy_data.spy_number > 0) |
4985 | wireless_spy_update(priv->netdev, hdr->addr2, &qual); | |
99e06e37 | 4986 | |
89cb7e7f | 4987 | spin_unlock_bh(&priv->spy_spinlock); |
99e06e37 PR |
4988 | } |
4989 | ||
89cb7e7f | 4990 | static void at76_rx_tasklet(unsigned long param) |
99e06e37 | 4991 | { |
89cb7e7f GKH |
4992 | struct urb *urb = (struct urb *)param; |
4993 | struct at76_priv *priv = urb->context; | |
4994 | struct net_device *netdev = priv->netdev; | |
4995 | struct at76_rx_buffer *buf; | |
4996 | struct ieee80211_hdr_3addr *i802_11_hdr; | |
4997 | u16 frame_ctl; | |
99e06e37 | 4998 | |
89cb7e7f GKH |
4999 | if (priv->device_unplugged) { |
5000 | at76_dbg(DBG_DEVSTART, "device unplugged"); | |
5001 | if (urb) | |
5002 | at76_dbg(DBG_DEVSTART, "urb status %d", urb->status); | |
5003 | return; | |
5004 | } | |
99e06e37 | 5005 | |
89cb7e7f GKH |
5006 | if (!priv->rx_skb || !netdev || !priv->rx_skb->data) |
5007 | return; | |
99e06e37 | 5008 | |
89cb7e7f | 5009 | buf = (struct at76_rx_buffer *)priv->rx_skb->data; |
99e06e37 | 5010 | |
89cb7e7f | 5011 | i802_11_hdr = (struct ieee80211_hdr_3addr *)buf->packet; |
02227c28 | 5012 | |
89cb7e7f | 5013 | frame_ctl = le16_to_cpu(i802_11_hdr->frame_ctl); |
02227c28 | 5014 | |
89cb7e7f GKH |
5015 | if (urb->status != 0) { |
5016 | if (urb->status != -ENOENT && urb->status != -ECONNRESET) | |
5017 | at76_dbg(DBG_URB, | |
5018 | "%s %s: - nonzero Rx bulk status received: %d", | |
5019 | __func__, netdev->name, urb->status); | |
5020 | return; | |
99e06e37 PR |
5021 | } |
5022 | ||
89cb7e7f GKH |
5023 | at76_dbg(DBG_RX_ATMEL_HDR, |
5024 | "%s: rx frame: rate %d rssi %d noise %d link %d %s", | |
5025 | priv->netdev->name, buf->rx_rate, buf->rssi, buf->noise_level, | |
5026 | buf->link_quality, hex2str(i802_11_hdr, 48)); | |
5027 | if (priv->iw_mode == IW_MODE_MONITOR) { | |
5028 | at76_rx_monitor_mode(priv); | |
5029 | goto exit; | |
02227c28 | 5030 | } |
99e06e37 | 5031 | |
89cb7e7f GKH |
5032 | /* there is a new bssid around, accept it: */ |
5033 | if (buf->newbss && priv->iw_mode == IW_MODE_ADHOC) { | |
5034 | at76_dbg(DBG_PROGRESS, "%s: rx newbss", netdev->name); | |
5035 | schedule_work(&priv->work_new_bss); | |
5036 | } | |
99e06e37 | 5037 | |
89cb7e7f GKH |
5038 | switch (frame_ctl & IEEE80211_FCTL_FTYPE) { |
5039 | case IEEE80211_FTYPE_DATA: | |
5040 | at76_rx_data(priv); | |
5041 | break; | |
99e06e37 | 5042 | |
89cb7e7f GKH |
5043 | case IEEE80211_FTYPE_MGMT: |
5044 | /* jal: TODO: find out if we can update iwspy also on | |
5045 | other frames than management (might depend on the | |
5046 | radio chip / firmware version !) */ | |
99e06e37 | 5047 | |
89cb7e7f | 5048 | at76_iwspy_update(priv, buf); |
99e06e37 | 5049 | |
89cb7e7f GKH |
5050 | at76_rx_mgmt(priv, buf); |
5051 | break; | |
99e06e37 | 5052 | |
89cb7e7f GKH |
5053 | case IEEE80211_FTYPE_CTL: |
5054 | at76_dbg(DBG_RX_CTRL, "%s: ignored ctrl frame: %04x", | |
5055 | priv->netdev->name, frame_ctl); | |
5056 | break; | |
99e06e37 | 5057 | |
89cb7e7f GKH |
5058 | default: |
5059 | printk(KERN_DEBUG "%s: ignoring frame with framectl 0x%04x\n", | |
5060 | priv->netdev->name, frame_ctl); | |
5061 | } | |
5062 | exit: | |
5063 | at76_submit_rx_urb(priv); | |
5064 | } | |
99e06e37 | 5065 | |
89cb7e7f GKH |
5066 | /* Load firmware into kernel memory and parse it */ |
5067 | static struct fwentry *at76_load_firmware(struct usb_device *udev, | |
5068 | enum board_type board_type) | |
5069 | { | |
5070 | int ret; | |
5071 | char *str; | |
5072 | struct at76_fw_header *fwh; | |
5073 | struct fwentry *fwe = &firmwares[board_type]; | |
99e06e37 | 5074 | |
89cb7e7f | 5075 | mutex_lock(&fw_mutex); |
99e06e37 | 5076 | |
89cb7e7f GKH |
5077 | if (fwe->loaded) { |
5078 | at76_dbg(DBG_FW, "re-using previously loaded fw"); | |
02227c28 | 5079 | goto exit; |
89cb7e7f | 5080 | } |
99e06e37 | 5081 | |
89cb7e7f GKH |
5082 | at76_dbg(DBG_FW, "downloading firmware %s", fwe->fwname); |
5083 | ret = request_firmware(&fwe->fw, fwe->fwname, &udev->dev); | |
5084 | if (ret < 0) { | |
5085 | dev_printk(KERN_ERR, &udev->dev, "firmware %s not found!\n", | |
5086 | fwe->fwname); | |
5087 | dev_printk(KERN_ERR, &udev->dev, | |
5088 | "you may need to download the firmware from " | |
5089 | "http://developer.berlios.de/projects/at76c503a/"); | |
5090 | goto exit; | |
5091 | } | |
99e06e37 | 5092 | |
89cb7e7f GKH |
5093 | at76_dbg(DBG_FW, "got it."); |
5094 | fwh = (struct at76_fw_header *)(fwe->fw->data); | |
99e06e37 | 5095 | |
89cb7e7f GKH |
5096 | if (fwe->fw->size <= sizeof(*fwh)) { |
5097 | dev_printk(KERN_ERR, &udev->dev, | |
5098 | "firmware is too short (0x%zx)\n", fwe->fw->size); | |
5099 | goto exit; | |
5100 | } | |
99e06e37 | 5101 | |
89cb7e7f GKH |
5102 | /* CRC currently not checked */ |
5103 | fwe->board_type = le32_to_cpu(fwh->board_type); | |
5104 | if (fwe->board_type != board_type) { | |
5105 | dev_printk(KERN_ERR, &udev->dev, | |
5106 | "board type mismatch, requested %u, got %u\n", | |
5107 | board_type, fwe->board_type); | |
5108 | goto exit; | |
5109 | } | |
99e06e37 | 5110 | |
89cb7e7f GKH |
5111 | fwe->fw_version.major = fwh->major; |
5112 | fwe->fw_version.minor = fwh->minor; | |
5113 | fwe->fw_version.patch = fwh->patch; | |
5114 | fwe->fw_version.build = fwh->build; | |
99e06e37 | 5115 | |
89cb7e7f GKH |
5116 | str = (char *)fwh + le32_to_cpu(fwh->str_offset); |
5117 | fwe->intfw = (u8 *)fwh + le32_to_cpu(fwh->int_fw_offset); | |
5118 | fwe->intfw_size = le32_to_cpu(fwh->int_fw_len); | |
5119 | fwe->extfw = (u8 *)fwh + le32_to_cpu(fwh->ext_fw_offset); | |
5120 | fwe->extfw_size = le32_to_cpu(fwh->ext_fw_len); | |
99e06e37 | 5121 | |
89cb7e7f | 5122 | fwe->loaded = 1; |
99e06e37 | 5123 | |
89cb7e7f GKH |
5124 | dev_printk(KERN_DEBUG, &udev->dev, |
5125 | "using firmware %s (version %d.%d.%d-%d)\n", | |
5126 | fwe->fwname, fwh->major, fwh->minor, fwh->patch, fwh->build); | |
99e06e37 | 5127 | |
89cb7e7f GKH |
5128 | at76_dbg(DBG_DEVSTART, "board %u, int %d:%d, ext %d:%d", board_type, |
5129 | le32_to_cpu(fwh->int_fw_offset), le32_to_cpu(fwh->int_fw_len), | |
5130 | le32_to_cpu(fwh->ext_fw_offset), le32_to_cpu(fwh->ext_fw_len)); | |
5131 | at76_dbg(DBG_DEVSTART, "firmware id %s", str); | |
02227c28 | 5132 | |
99e06e37 | 5133 | exit: |
89cb7e7f | 5134 | mutex_unlock(&fw_mutex); |
02227c28 | 5135 | |
89cb7e7f GKH |
5136 | if (fwe->loaded) |
5137 | return fwe; | |
99e06e37 | 5138 | else |
89cb7e7f | 5139 | return NULL; |
99e06e37 PR |
5140 | } |
5141 | ||
5142 | /* Allocate network device and initialize private data */ | |
5143 | static struct at76_priv *at76_alloc_new_device(struct usb_device *udev) | |
5144 | { | |
89cb7e7f | 5145 | struct net_device *netdev; |
99e06e37 | 5146 | struct at76_priv *priv; |
89cb7e7f | 5147 | int i; |
99e06e37 | 5148 | |
89cb7e7f GKH |
5149 | /* allocate memory for our device state and initialize it */ |
5150 | netdev = alloc_etherdev(sizeof(struct at76_priv)); | |
5151 | if (!netdev) { | |
5152 | dev_printk(KERN_ERR, &udev->dev, "out of memory\n"); | |
99e06e37 PR |
5153 | return NULL; |
5154 | } | |
5155 | ||
89cb7e7f | 5156 | priv = netdev_priv(netdev); |
99e06e37 PR |
5157 | |
5158 | priv->udev = udev; | |
89cb7e7f | 5159 | priv->netdev = netdev; |
99e06e37 PR |
5160 | |
5161 | mutex_init(&priv->mtx); | |
89cb7e7f GKH |
5162 | INIT_WORK(&priv->work_assoc_done, at76_work_assoc_done); |
5163 | INIT_WORK(&priv->work_join, at76_work_join); | |
5164 | INIT_WORK(&priv->work_new_bss, at76_work_new_bss); | |
5165 | INIT_WORK(&priv->work_start_scan, at76_work_start_scan); | |
99e06e37 PR |
5166 | INIT_WORK(&priv->work_set_promisc, at76_work_set_promisc); |
5167 | INIT_WORK(&priv->work_submit_rx, at76_work_submit_rx); | |
89cb7e7f GKH |
5168 | INIT_DELAYED_WORK(&priv->dwork_restart, at76_dwork_restart); |
5169 | INIT_DELAYED_WORK(&priv->dwork_get_scan, at76_dwork_get_scan); | |
5170 | INIT_DELAYED_WORK(&priv->dwork_beacon, at76_dwork_beacon); | |
5171 | INIT_DELAYED_WORK(&priv->dwork_auth, at76_dwork_auth); | |
5172 | INIT_DELAYED_WORK(&priv->dwork_assoc, at76_dwork_assoc); | |
5173 | ||
5174 | spin_lock_init(&priv->mgmt_spinlock); | |
5175 | priv->next_mgmt_bulk = NULL; | |
5176 | priv->mac_state = MAC_INIT; | |
5177 | ||
5178 | /* initialize empty BSS list */ | |
5179 | priv->curr_bss = NULL; | |
5180 | INIT_LIST_HEAD(&priv->bss_list); | |
5181 | spin_lock_init(&priv->bss_list_spinlock); | |
5182 | ||
5183 | init_timer(&priv->bss_list_timer); | |
5184 | priv->bss_list_timer.data = (unsigned long)priv; | |
5185 | priv->bss_list_timer.function = at76_bss_list_timeout; | |
5186 | ||
5187 | spin_lock_init(&priv->spy_spinlock); | |
5188 | ||
5189 | /* mark all rx data entries as unused */ | |
5190 | for (i = 0; i < NR_RX_DATA_BUF; i++) | |
5191 | priv->rx_data[i].skb = NULL; | |
99e06e37 PR |
5192 | |
5193 | priv->rx_tasklet.func = at76_rx_tasklet; | |
5194 | priv->rx_tasklet.data = 0; | |
5195 | ||
5196 | priv->pm_mode = AT76_PM_OFF; | |
5197 | priv->pm_period = 0; | |
5198 | ||
5199 | return priv; | |
5200 | } | |
5201 | ||
5202 | static int at76_alloc_urbs(struct at76_priv *priv, | |
5203 | struct usb_interface *interface) | |
5204 | { | |
5205 | struct usb_endpoint_descriptor *endpoint, *ep_in, *ep_out; | |
5206 | int i; | |
5207 | int buffer_size; | |
5208 | struct usb_host_interface *iface_desc; | |
5209 | ||
5210 | at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__); | |
5211 | ||
5212 | at76_dbg(DBG_URB, "%s: NumEndpoints %d ", __func__, | |
5213 | interface->altsetting[0].desc.bNumEndpoints); | |
5214 | ||
5215 | ep_in = NULL; | |
5216 | ep_out = NULL; | |
5217 | iface_desc = interface->cur_altsetting; | |
5218 | for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { | |
5219 | endpoint = &iface_desc->endpoint[i].desc; | |
5220 | ||
5221 | at76_dbg(DBG_URB, "%s: %d. endpoint: addr 0x%x attr 0x%x", | |
5222 | __func__, i, endpoint->bEndpointAddress, | |
5223 | endpoint->bmAttributes); | |
5224 | ||
5225 | if (!ep_in && usb_endpoint_is_bulk_in(endpoint)) | |
5226 | ep_in = endpoint; | |
5227 | ||
5228 | if (!ep_out && usb_endpoint_is_bulk_out(endpoint)) | |
5229 | ep_out = endpoint; | |
5230 | } | |
5231 | ||
5232 | if (!ep_in || !ep_out) { | |
5233 | dev_printk(KERN_ERR, &interface->dev, | |
5234 | "bulk endpoints missing\n"); | |
5235 | return -ENXIO; | |
5236 | } | |
5237 | ||
5238 | priv->rx_pipe = usb_rcvbulkpipe(priv->udev, ep_in->bEndpointAddress); | |
5239 | priv->tx_pipe = usb_sndbulkpipe(priv->udev, ep_out->bEndpointAddress); | |
5240 | ||
5241 | priv->rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
5242 | priv->tx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
5243 | if (!priv->rx_urb || !priv->tx_urb) { | |
5244 | dev_printk(KERN_ERR, &interface->dev, "cannot allocate URB\n"); | |
5245 | return -ENOMEM; | |
5246 | } | |
5247 | ||
5248 | buffer_size = sizeof(struct at76_tx_buffer) + MAX_PADDING_SIZE; | |
5249 | priv->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL); | |
5250 | if (!priv->bulk_out_buffer) { | |
5251 | dev_printk(KERN_ERR, &interface->dev, | |
5252 | "cannot allocate output buffer\n"); | |
5253 | return -ENOMEM; | |
5254 | } | |
5255 | ||
5256 | at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__); | |
5257 | ||
5258 | return 0; | |
5259 | } | |
5260 | ||
3a323682 AB |
5261 | static const struct net_device_ops at76_netdev_ops = { |
5262 | .ndo_open = at76_open, | |
5263 | .ndo_stop = at76_stop, | |
5264 | .ndo_get_stats = at76_get_stats, | |
5265 | .ndo_start_xmit = at76_tx, | |
5266 | .ndo_tx_timeout = at76_tx_timeout, | |
5267 | .ndo_set_multicast_list = at76_set_multicast, | |
5268 | .ndo_set_mac_address = at76_set_mac_address, | |
5269 | .ndo_validate_addr = eth_validate_addr, | |
5270 | .ndo_change_mtu = eth_change_mtu, | |
5271 | }; | |
5272 | ||
99e06e37 PR |
5273 | /* Register network device and initialize the hardware */ |
5274 | static int at76_init_new_device(struct at76_priv *priv, | |
5275 | struct usb_interface *interface) | |
5276 | { | |
89cb7e7f | 5277 | struct net_device *netdev = priv->netdev; |
99e06e37 PR |
5278 | int ret; |
5279 | ||
5280 | /* set up the endpoint information */ | |
5281 | /* check out the endpoints */ | |
5282 | ||
5283 | at76_dbg(DBG_DEVSTART, "USB interface: %d endpoints", | |
5284 | interface->cur_altsetting->desc.bNumEndpoints); | |
5285 | ||
5286 | ret = at76_alloc_urbs(priv, interface); | |
5287 | if (ret < 0) | |
5288 | goto exit; | |
5289 | ||
5290 | /* MAC address */ | |
5291 | ret = at76_get_hw_config(priv); | |
5292 | if (ret < 0) { | |
89cb7e7f GKH |
5293 | dev_printk(KERN_ERR, &interface->dev, |
5294 | "cannot get MAC address\n"); | |
99e06e37 PR |
5295 | goto exit; |
5296 | } | |
5297 | ||
5298 | priv->domain = at76_get_reg_domain(priv->regulatory_domain); | |
89cb7e7f GKH |
5299 | /* init. netdev->dev_addr */ |
5300 | memcpy(netdev->dev_addr, priv->mac_addr, ETH_ALEN); | |
99e06e37 PR |
5301 | |
5302 | priv->channel = DEF_CHANNEL; | |
5303 | priv->iw_mode = IW_MODE_INFRA; | |
5304 | priv->rts_threshold = DEF_RTS_THRESHOLD; | |
5305 | priv->frag_threshold = DEF_FRAG_THRESHOLD; | |
5306 | priv->short_retry_limit = DEF_SHORT_RETRY_LIMIT; | |
5307 | priv->txrate = TX_RATE_AUTO; | |
5308 | priv->preamble_type = PREAMBLE_TYPE_LONG; | |
5309 | priv->beacon_period = 100; | |
89cb7e7f | 5310 | priv->beacons_last_qual = jiffies; |
99e06e37 PR |
5311 | priv->auth_mode = WLAN_AUTH_OPEN; |
5312 | priv->scan_min_time = DEF_SCAN_MIN_TIME; | |
5313 | priv->scan_max_time = DEF_SCAN_MAX_TIME; | |
5314 | priv->scan_mode = SCAN_TYPE_ACTIVE; | |
02227c28 | 5315 | |
89cb7e7f | 5316 | netdev->flags &= ~IFF_MULTICAST; /* not yet or never */ |
3a323682 | 5317 | netdev->netdev_ops = &at76_netdev_ops; |
89cb7e7f GKH |
5318 | netdev->ethtool_ops = &at76_ethtool_ops; |
5319 | ||
5320 | /* Add pointers to enable iwspy support. */ | |
5321 | priv->wireless_data.spy_data = &priv->spy_data; | |
5322 | netdev->wireless_data = &priv->wireless_data; | |
5323 | ||
89cb7e7f GKH |
5324 | netdev->watchdog_timeo = 2 * HZ; |
5325 | netdev->wireless_handlers = &at76_handler_def; | |
89cb7e7f GKH |
5326 | dev_alloc_name(netdev, "wlan%d"); |
5327 | ||
5328 | ret = register_netdev(priv->netdev); | |
99e06e37 | 5329 | if (ret) { |
89cb7e7f GKH |
5330 | dev_printk(KERN_ERR, &interface->dev, |
5331 | "cannot register netdevice (status %d)!\n", ret); | |
99e06e37 PR |
5332 | goto exit; |
5333 | } | |
89cb7e7f | 5334 | priv->netdev_registered = 1; |
02227c28 | 5335 | |
89cb7e7f GKH |
5336 | printk(KERN_INFO "%s: USB %s, MAC %s, firmware %d.%d.%d-%d\n", |
5337 | netdev->name, dev_name(&interface->dev), mac2str(priv->mac_addr), | |
5338 | priv->fw_version.major, priv->fw_version.minor, | |
5339 | priv->fw_version.patch, priv->fw_version.build); | |
5340 | printk(KERN_INFO "%s: regulatory domain 0x%02x: %s\n", netdev->name, | |
5341 | priv->regulatory_domain, priv->domain->name); | |
99e06e37 | 5342 | |
89cb7e7f GKH |
5343 | /* we let this timer run the whole time this driver instance lives */ |
5344 | mod_timer(&priv->bss_list_timer, jiffies + BSS_LIST_TIMEOUT); | |
99e06e37 PR |
5345 | |
5346 | exit: | |
5347 | return ret; | |
5348 | } | |
5349 | ||
5350 | static void at76_delete_device(struct at76_priv *priv) | |
5351 | { | |
89cb7e7f GKH |
5352 | int i; |
5353 | ||
99e06e37 PR |
5354 | at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__); |
5355 | ||
5356 | /* The device is gone, don't bother turning it off */ | |
5357 | priv->device_unplugged = 1; | |
5358 | ||
89cb7e7f GKH |
5359 | if (priv->netdev_registered) |
5360 | unregister_netdev(priv->netdev); | |
99e06e37 PR |
5361 | |
5362 | /* assuming we used keventd, it must quiesce too */ | |
5363 | flush_scheduled_work(); | |
5364 | ||
5365 | kfree(priv->bulk_out_buffer); | |
5366 | ||
5367 | if (priv->tx_urb) { | |
5368 | usb_kill_urb(priv->tx_urb); | |
5369 | usb_free_urb(priv->tx_urb); | |
5370 | } | |
5371 | if (priv->rx_urb) { | |
5372 | usb_kill_urb(priv->rx_urb); | |
5373 | usb_free_urb(priv->rx_urb); | |
5374 | } | |
5375 | ||
5376 | at76_dbg(DBG_PROC_ENTRY, "%s: unlinked urbs", __func__); | |
5377 | ||
0773a5c0 | 5378 | kfree_skb(priv->rx_skb); |
99e06e37 | 5379 | |
89cb7e7f GKH |
5380 | at76_free_bss_list(priv); |
5381 | del_timer_sync(&priv->bss_list_timer); | |
5382 | cancel_delayed_work(&priv->dwork_get_scan); | |
5383 | cancel_delayed_work(&priv->dwork_beacon); | |
5384 | cancel_delayed_work(&priv->dwork_auth); | |
5385 | cancel_delayed_work(&priv->dwork_assoc); | |
5386 | ||
5387 | if (priv->mac_state == MAC_CONNECTED) | |
5388 | at76_iwevent_bss_disconnect(priv->netdev); | |
5389 | ||
5390 | for (i = 0; i < NR_RX_DATA_BUF; i++) | |
5391 | if (priv->rx_data[i].skb) { | |
5392 | dev_kfree_skb(priv->rx_data[i].skb); | |
5393 | priv->rx_data[i].skb = NULL; | |
5394 | } | |
99e06e37 PR |
5395 | usb_put_dev(priv->udev); |
5396 | ||
89cb7e7f GKH |
5397 | at76_dbg(DBG_PROC_ENTRY, "%s: before freeing priv/netdev", __func__); |
5398 | free_netdev(priv->netdev); /* priv is in netdev */ | |
99e06e37 PR |
5399 | |
5400 | at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__); | |
5401 | } | |
5402 | ||
5403 | static int at76_probe(struct usb_interface *interface, | |
5404 | const struct usb_device_id *id) | |
5405 | { | |
5406 | int ret; | |
5407 | struct at76_priv *priv; | |
5408 | struct fwentry *fwe; | |
5409 | struct usb_device *udev; | |
5410 | int op_mode; | |
5411 | int need_ext_fw = 0; | |
5412 | struct mib_fw_version fwv; | |
5413 | int board_type = (int)id->driver_info; | |
5414 | ||
5415 | udev = usb_get_dev(interface_to_usbdev(interface)); | |
5416 | ||
5417 | /* Load firmware into kernel memory */ | |
5418 | fwe = at76_load_firmware(udev, board_type); | |
5419 | if (!fwe) { | |
5420 | ret = -ENOENT; | |
5421 | goto error; | |
5422 | } | |
5423 | ||
5424 | op_mode = at76_get_op_mode(udev); | |
5425 | ||
5426 | at76_dbg(DBG_DEVSTART, "opmode %d", op_mode); | |
5427 | ||
5428 | /* we get OPMODE_NONE with 2.4.23, SMC2662W-AR ??? | |
5429 | we get 204 with 2.4.23, Fiberline FL-WL240u (505A+RFMD2958) ??? */ | |
5430 | ||
5431 | if (op_mode == OPMODE_HW_CONFIG_MODE) { | |
89cb7e7f GKH |
5432 | dev_printk(KERN_ERR, &interface->dev, |
5433 | "cannot handle a device in HW_CONFIG_MODE\n"); | |
99e06e37 PR |
5434 | ret = -EBUSY; |
5435 | goto error; | |
5436 | } | |
5437 | ||
5438 | if (op_mode != OPMODE_NORMAL_NIC_WITH_FLASH | |
5439 | && op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) { | |
5440 | /* download internal firmware part */ | |
89cb7e7f GKH |
5441 | dev_printk(KERN_DEBUG, &interface->dev, |
5442 | "downloading internal firmware\n"); | |
99e06e37 PR |
5443 | ret = at76_load_internal_fw(udev, fwe); |
5444 | if (ret < 0) { | |
89cb7e7f GKH |
5445 | dev_printk(KERN_ERR, &interface->dev, |
5446 | "error %d downloading internal firmware\n", | |
5447 | ret); | |
99e06e37 PR |
5448 | goto error; |
5449 | } | |
5450 | usb_put_dev(udev); | |
5451 | return ret; | |
5452 | } | |
5453 | ||
5454 | /* Internal firmware already inside the device. Get firmware | |
5455 | * version to test if external firmware is loaded. | |
5456 | * This works only for newer firmware, e.g. the Intersil 0.90.x | |
5457 | * says "control timeout on ep0in" and subsequent | |
5458 | * at76_get_op_mode() fail too :-( */ | |
5459 | ||
5460 | /* if version >= 0.100.x.y or device with built-in flash we can | |
5461 | * query the device for the fw version */ | |
5462 | if ((fwe->fw_version.major > 0 || fwe->fw_version.minor >= 100) | |
5463 | || (op_mode == OPMODE_NORMAL_NIC_WITH_FLASH)) { | |
5464 | ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv)); | |
5465 | if (ret < 0 || (fwv.major | fwv.minor) == 0) | |
5466 | need_ext_fw = 1; | |
5467 | } else | |
5468 | /* No way to check firmware version, reload to be sure */ | |
5469 | need_ext_fw = 1; | |
5470 | ||
5471 | if (need_ext_fw) { | |
89cb7e7f GKH |
5472 | dev_printk(KERN_DEBUG, &interface->dev, |
5473 | "downloading external firmware\n"); | |
99e06e37 PR |
5474 | |
5475 | ret = at76_load_external_fw(udev, fwe); | |
5476 | if (ret) | |
5477 | goto error; | |
5478 | ||
5479 | /* Re-check firmware version */ | |
5480 | ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv)); | |
5481 | if (ret < 0) { | |
89cb7e7f GKH |
5482 | dev_printk(KERN_ERR, &interface->dev, |
5483 | "error %d getting firmware version\n", ret); | |
99e06e37 PR |
5484 | goto error; |
5485 | } | |
5486 | } | |
5487 | ||
5488 | priv = at76_alloc_new_device(udev); | |
5489 | if (!priv) { | |
5490 | ret = -ENOMEM; | |
5491 | goto error; | |
5492 | } | |
5493 | ||
89cb7e7f | 5494 | SET_NETDEV_DEV(priv->netdev, &interface->dev); |
99e06e37 PR |
5495 | usb_set_intfdata(interface, priv); |
5496 | ||
5497 | memcpy(&priv->fw_version, &fwv, sizeof(struct mib_fw_version)); | |
5498 | priv->board_type = board_type; | |
5499 | ||
5500 | ret = at76_init_new_device(priv, interface); | |
5501 | if (ret < 0) | |
5502 | at76_delete_device(priv); | |
5503 | ||
5504 | return ret; | |
5505 | ||
5506 | error: | |
5507 | usb_put_dev(udev); | |
5508 | return ret; | |
5509 | } | |
5510 | ||
5511 | static void at76_disconnect(struct usb_interface *interface) | |
5512 | { | |
5513 | struct at76_priv *priv; | |
5514 | ||
5515 | priv = usb_get_intfdata(interface); | |
5516 | usb_set_intfdata(interface, NULL); | |
5517 | ||
5518 | /* Disconnect after loading internal firmware */ | |
5519 | if (!priv) | |
5520 | return; | |
5521 | ||
89cb7e7f | 5522 | printk(KERN_INFO "%s: disconnecting\n", priv->netdev->name); |
99e06e37 PR |
5523 | at76_delete_device(priv); |
5524 | dev_printk(KERN_INFO, &interface->dev, "disconnected\n"); | |
5525 | } | |
5526 | ||
5527 | /* Structure for registering this driver with the USB subsystem */ | |
5528 | static struct usb_driver at76_driver = { | |
5529 | .name = DRIVER_NAME, | |
5530 | .probe = at76_probe, | |
5531 | .disconnect = at76_disconnect, | |
5532 | .id_table = dev_table, | |
5533 | }; | |
5534 | ||
5535 | static int __init at76_mod_init(void) | |
5536 | { | |
5537 | int result; | |
5538 | ||
5539 | printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " loading\n"); | |
5540 | ||
5541 | mutex_init(&fw_mutex); | |
5542 | ||
5543 | /* register this driver with the USB subsystem */ | |
5544 | result = usb_register(&at76_driver); | |
5545 | if (result < 0) | |
5546 | printk(KERN_ERR DRIVER_NAME | |
5547 | ": usb_register failed (status %d)\n", result); | |
5548 | ||
5549 | led_trigger_register_simple("at76_usb-tx", &ledtrig_tx); | |
5550 | return result; | |
5551 | } | |
5552 | ||
5553 | static void __exit at76_mod_exit(void) | |
5554 | { | |
5555 | int i; | |
5556 | ||
5557 | printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " unloading\n"); | |
5558 | usb_deregister(&at76_driver); | |
5559 | for (i = 0; i < ARRAY_SIZE(firmwares); i++) { | |
5560 | if (firmwares[i].fw) | |
5561 | release_firmware(firmwares[i].fw); | |
5562 | } | |
5563 | led_trigger_unregister_simple(ledtrig_tx); | |
5564 | } | |
5565 | ||
5566 | module_param_named(debug, at76_debug, int, 0600); | |
5567 | MODULE_PARM_DESC(debug, "Debugging level"); | |
5568 | ||
5569 | module_init(at76_mod_init); | |
5570 | module_exit(at76_mod_exit); | |
5571 | ||
5572 | MODULE_AUTHOR("Oliver Kurth <oku@masqmail.cx>"); | |
5573 | MODULE_AUTHOR("Joerg Albert <joerg.albert@gmx.de>"); | |
5574 | MODULE_AUTHOR("Alex <alex@foogod.com>"); | |
5575 | MODULE_AUTHOR("Nick Jones"); | |
5576 | MODULE_AUTHOR("Balint Seeber <n0_5p4m_p13453@hotmail.com>"); | |
5577 | MODULE_AUTHOR("Pavel Roskin <proski@gnu.org>"); | |
5578 | MODULE_DESCRIPTION(DRIVER_DESC); | |
5579 | MODULE_LICENSE("GPL"); |