Commit | Line | Data |
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1264b951 KV |
1 | /* |
2 | * at76c503/at76c505 USB driver | |
3 | * | |
4 | * Copyright (c) 2002 - 2003 Oliver Kurth | |
5 | * Copyright (c) 2004 Joerg Albert <joerg.albert@gmx.de> | |
6 | * Copyright (c) 2004 Nick Jones | |
7 | * Copyright (c) 2004 Balint Seeber <n0_5p4m_p13453@hotmail.com> | |
8 | * Copyright (c) 2007 Guido Guenther <agx@sigxcpu.org> | |
9 | * Copyright (c) 2007 Kalle Valo <kalle.valo@iki.fi> | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU General Public License as | |
13 | * published by the Free Software Foundation; either version 2 of | |
14 | * the License, or (at your option) any later version. | |
15 | * | |
16 | * This file is part of the Berlios driver for WLAN USB devices based on the | |
17 | * Atmel AT76C503A/505/505A. | |
18 | * | |
19 | * Some iw_handler code was taken from airo.c, (C) 1999 Benjamin Reed | |
20 | * | |
21 | * TODO for the mac80211 port: | |
22 | * o adhoc support | |
23 | * o RTS/CTS support | |
24 | * o Power Save Mode support | |
25 | * o support for short/long preambles | |
26 | * o export variables through debugfs/sysfs | |
27 | * o remove hex2str | |
28 | * o remove mac2str | |
29 | */ | |
30 | ||
31 | #include <linux/init.h> | |
32 | #include <linux/kernel.h> | |
33 | #include <linux/sched.h> | |
34 | #include <linux/errno.h> | |
35 | #include <linux/slab.h> | |
36 | #include <linux/module.h> | |
37 | #include <linux/spinlock.h> | |
38 | #include <linux/list.h> | |
39 | #include <linux/usb.h> | |
40 | #include <linux/netdevice.h> | |
41 | #include <linux/if_arp.h> | |
42 | #include <linux/etherdevice.h> | |
43 | #include <linux/ethtool.h> | |
44 | #include <linux/wireless.h> | |
45 | #include <net/iw_handler.h> | |
46 | #include <net/ieee80211_radiotap.h> | |
47 | #include <linux/firmware.h> | |
48 | #include <linux/leds.h> | |
49 | #include <net/mac80211.h> | |
50 | ||
51 | #include "at76c50x-usb.h" | |
52 | ||
53 | /* Version information */ | |
54 | #define DRIVER_NAME "at76c50x-usb" | |
55 | #define DRIVER_VERSION "0.17" | |
56 | #define DRIVER_DESC "Atmel at76x USB Wireless LAN Driver" | |
57 | ||
58 | /* at76_debug bits */ | |
59 | #define DBG_PROGRESS 0x00000001 /* authentication/accociation */ | |
60 | #define DBG_BSS_TABLE 0x00000002 /* show BSS table after scans */ | |
61 | #define DBG_IOCTL 0x00000004 /* ioctl calls / settings */ | |
62 | #define DBG_MAC_STATE 0x00000008 /* MAC state transitions */ | |
63 | #define DBG_TX_DATA 0x00000010 /* tx header */ | |
64 | #define DBG_TX_DATA_CONTENT 0x00000020 /* tx content */ | |
65 | #define DBG_TX_MGMT 0x00000040 /* tx management */ | |
66 | #define DBG_RX_DATA 0x00000080 /* rx data header */ | |
67 | #define DBG_RX_DATA_CONTENT 0x00000100 /* rx data content */ | |
68 | #define DBG_RX_MGMT 0x00000200 /* rx mgmt frame headers */ | |
69 | #define DBG_RX_BEACON 0x00000400 /* rx beacon */ | |
70 | #define DBG_RX_CTRL 0x00000800 /* rx control */ | |
71 | #define DBG_RX_MGMT_CONTENT 0x00001000 /* rx mgmt content */ | |
72 | #define DBG_RX_FRAGS 0x00002000 /* rx data fragment handling */ | |
73 | #define DBG_DEVSTART 0x00004000 /* fw download, device start */ | |
74 | #define DBG_URB 0x00008000 /* rx urb status, ... */ | |
75 | #define DBG_RX_ATMEL_HDR 0x00010000 /* Atmel-specific Rx headers */ | |
76 | #define DBG_PROC_ENTRY 0x00020000 /* procedure entries/exits */ | |
77 | #define DBG_PM 0x00040000 /* power management settings */ | |
78 | #define DBG_BSS_MATCH 0x00080000 /* BSS match failures */ | |
79 | #define DBG_PARAMS 0x00100000 /* show configured parameters */ | |
80 | #define DBG_WAIT_COMPLETE 0x00200000 /* command completion */ | |
81 | #define DBG_RX_FRAGS_SKB 0x00400000 /* skb header of Rx fragments */ | |
82 | #define DBG_BSS_TABLE_RM 0x00800000 /* purging bss table entries */ | |
83 | #define DBG_MONITOR_MODE 0x01000000 /* monitor mode */ | |
84 | #define DBG_MIB 0x02000000 /* dump all MIBs on startup */ | |
85 | #define DBG_MGMT_TIMER 0x04000000 /* dump mgmt_timer ops */ | |
86 | #define DBG_WE_EVENTS 0x08000000 /* dump wireless events */ | |
87 | #define DBG_FW 0x10000000 /* firmware download */ | |
88 | #define DBG_DFU 0x20000000 /* device firmware upgrade */ | |
89 | #define DBG_CMD 0x40000000 | |
90 | #define DBG_MAC80211 0x80000000 | |
91 | ||
92 | #define DBG_DEFAULTS 0 | |
93 | ||
94 | /* Use our own dbg macro */ | |
95 | #define at76_dbg(bits, format, arg...) \ | |
96 | do { \ | |
97 | if (at76_debug & (bits)) \ | |
98 | printk(KERN_DEBUG DRIVER_NAME ": " format "\n" , \ | |
99 | ## arg); \ | |
100 | } while (0) | |
101 | ||
102 | #define at76_dbg_dump(bits, buf, len, format, arg...) \ | |
103 | do { \ | |
104 | if (at76_debug & (bits)) { \ | |
105 | printk(KERN_DEBUG DRIVER_NAME ": " format "\n" , \ | |
106 | ## arg); \ | |
107 | print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, \ | |
108 | buf, len); \ | |
109 | } \ | |
110 | } while (0) | |
111 | ||
112 | static int at76_debug = DBG_DEFAULTS; | |
113 | ||
114 | /* Protect against concurrent firmware loading and parsing */ | |
115 | static struct mutex fw_mutex; | |
116 | ||
117 | static struct fwentry firmwares[] = { | |
118 | [0] = { "" }, | |
119 | [BOARD_503_ISL3861] = { "atmel_at76c503-i3861.bin" }, | |
120 | [BOARD_503_ISL3863] = { "atmel_at76c503-i3863.bin" }, | |
121 | [BOARD_503] = { "atmel_at76c503-rfmd.bin" }, | |
122 | [BOARD_503_ACC] = { "atmel_at76c503-rfmd-acc.bin" }, | |
123 | [BOARD_505] = { "atmel_at76c505-rfmd.bin" }, | |
124 | [BOARD_505_2958] = { "atmel_at76c505-rfmd2958.bin" }, | |
125 | [BOARD_505A] = { "atmel_at76c505a-rfmd2958.bin" }, | |
126 | [BOARD_505AMX] = { "atmel_at76c505amx-rfmd.bin" }, | |
127 | }; | |
128 | ||
129 | #define USB_DEVICE_DATA(__ops) .driver_info = (kernel_ulong_t)(__ops) | |
130 | ||
131 | static struct usb_device_id dev_table[] = { | |
132 | /* | |
133 | * at76c503-i3861 | |
134 | */ | |
135 | /* Generic AT76C503/3861 device */ | |
136 | { USB_DEVICE(0x03eb, 0x7603), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
137 | /* Linksys WUSB11 v2.1/v2.6 */ | |
138 | { USB_DEVICE(0x066b, 0x2211), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
139 | /* Netgear MA101 rev. A */ | |
140 | { USB_DEVICE(0x0864, 0x4100), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
141 | /* Tekram U300C / Allnet ALL0193 */ | |
142 | { USB_DEVICE(0x0b3b, 0x1612), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
143 | /* HP HN210W J7801A */ | |
144 | { USB_DEVICE(0x03f0, 0x011c), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
145 | /* Sitecom/Z-Com/Zyxel M4Y-750 */ | |
146 | { USB_DEVICE(0x0cde, 0x0001), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
147 | /* Dynalink/Askey WLL013 (intersil) */ | |
148 | { USB_DEVICE(0x069a, 0x0320), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
149 | /* EZ connect 11Mpbs Wireless USB Adapter SMC2662W v1 */ | |
150 | { USB_DEVICE(0x0d5c, 0xa001), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
151 | /* BenQ AWL300 */ | |
152 | { USB_DEVICE(0x04a5, 0x9000), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
153 | /* Addtron AWU-120, Compex WLU11 */ | |
154 | { USB_DEVICE(0x05dd, 0xff31), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
155 | /* Intel AP310 AnyPoint II USB */ | |
156 | { USB_DEVICE(0x8086, 0x0200), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
157 | /* Dynalink L11U */ | |
158 | { USB_DEVICE(0x0d8e, 0x7100), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
159 | /* Arescom WL-210, FCC id 07J-GL2411USB */ | |
160 | { USB_DEVICE(0x0d8e, 0x7110), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
161 | /* I-O DATA WN-B11/USB */ | |
162 | { USB_DEVICE(0x04bb, 0x0919), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
163 | /* BT Voyager 1010 */ | |
164 | { USB_DEVICE(0x069a, 0x0821), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
165 | /* | |
166 | * at76c503-i3863 | |
167 | */ | |
168 | /* Generic AT76C503/3863 device */ | |
169 | { USB_DEVICE(0x03eb, 0x7604), USB_DEVICE_DATA(BOARD_503_ISL3863) }, | |
170 | /* Samsung SWL-2100U */ | |
171 | { USB_DEVICE(0x055d, 0xa000), USB_DEVICE_DATA(BOARD_503_ISL3863) }, | |
172 | /* | |
173 | * at76c503-rfmd | |
174 | */ | |
175 | /* Generic AT76C503/RFMD device */ | |
176 | { USB_DEVICE(0x03eb, 0x7605), USB_DEVICE_DATA(BOARD_503) }, | |
177 | /* Dynalink/Askey WLL013 (rfmd) */ | |
178 | { USB_DEVICE(0x069a, 0x0321), USB_DEVICE_DATA(BOARD_503) }, | |
179 | /* Linksys WUSB11 v2.6 */ | |
180 | { USB_DEVICE(0x077b, 0x2219), USB_DEVICE_DATA(BOARD_503) }, | |
181 | /* Network Everywhere NWU11B */ | |
182 | { USB_DEVICE(0x077b, 0x2227), USB_DEVICE_DATA(BOARD_503) }, | |
183 | /* Netgear MA101 rev. B */ | |
184 | { USB_DEVICE(0x0864, 0x4102), USB_DEVICE_DATA(BOARD_503) }, | |
185 | /* D-Link DWL-120 rev. E */ | |
186 | { USB_DEVICE(0x2001, 0x3200), USB_DEVICE_DATA(BOARD_503) }, | |
187 | /* Actiontec 802UAT1, HWU01150-01UK */ | |
188 | { USB_DEVICE(0x1668, 0x7605), USB_DEVICE_DATA(BOARD_503) }, | |
189 | /* AirVast W-Buddie WN210 */ | |
190 | { USB_DEVICE(0x03eb, 0x4102), USB_DEVICE_DATA(BOARD_503) }, | |
191 | /* Dick Smith Electronics XH1153 802.11b USB adapter */ | |
192 | { USB_DEVICE(0x1371, 0x5743), USB_DEVICE_DATA(BOARD_503) }, | |
193 | /* CNet CNUSB611 */ | |
194 | { USB_DEVICE(0x1371, 0x0001), USB_DEVICE_DATA(BOARD_503) }, | |
195 | /* FiberLine FL-WL200U */ | |
196 | { USB_DEVICE(0x1371, 0x0002), USB_DEVICE_DATA(BOARD_503) }, | |
197 | /* BenQ AWL400 USB stick */ | |
198 | { USB_DEVICE(0x04a5, 0x9001), USB_DEVICE_DATA(BOARD_503) }, | |
199 | /* 3Com 3CRSHEW696 */ | |
200 | { USB_DEVICE(0x0506, 0x0a01), USB_DEVICE_DATA(BOARD_503) }, | |
201 | /* Siemens Santis ADSL WLAN USB adapter WLL 013 */ | |
202 | { USB_DEVICE(0x0681, 0x001b), USB_DEVICE_DATA(BOARD_503) }, | |
203 | /* Belkin F5D6050, version 2 */ | |
204 | { USB_DEVICE(0x050d, 0x0050), USB_DEVICE_DATA(BOARD_503) }, | |
205 | /* iBlitzz, BWU613 (not *B or *SB) */ | |
206 | { USB_DEVICE(0x07b8, 0xb000), USB_DEVICE_DATA(BOARD_503) }, | |
207 | /* Gigabyte GN-WLBM101 */ | |
208 | { USB_DEVICE(0x1044, 0x8003), USB_DEVICE_DATA(BOARD_503) }, | |
209 | /* Planex GW-US11S */ | |
210 | { USB_DEVICE(0x2019, 0x3220), USB_DEVICE_DATA(BOARD_503) }, | |
211 | /* Internal WLAN adapter in h5[4,5]xx series iPAQs */ | |
212 | { USB_DEVICE(0x049f, 0x0032), USB_DEVICE_DATA(BOARD_503) }, | |
213 | /* Corega Wireless LAN USB-11 mini */ | |
214 | { USB_DEVICE(0x07aa, 0x0011), USB_DEVICE_DATA(BOARD_503) }, | |
215 | /* Corega Wireless LAN USB-11 mini2 */ | |
216 | { USB_DEVICE(0x07aa, 0x0018), USB_DEVICE_DATA(BOARD_503) }, | |
217 | /* Uniden PCW100 */ | |
218 | { USB_DEVICE(0x05dd, 0xff35), USB_DEVICE_DATA(BOARD_503) }, | |
219 | /* | |
220 | * at76c503-rfmd-acc | |
221 | */ | |
222 | /* SMC2664W */ | |
223 | { USB_DEVICE(0x083a, 0x3501), USB_DEVICE_DATA(BOARD_503_ACC) }, | |
224 | /* Belkin F5D6050, SMC2662W v2, SMC2662W-AR */ | |
225 | { USB_DEVICE(0x0d5c, 0xa002), USB_DEVICE_DATA(BOARD_503_ACC) }, | |
226 | /* | |
227 | * at76c505-rfmd | |
228 | */ | |
229 | /* Generic AT76C505/RFMD */ | |
230 | { USB_DEVICE(0x03eb, 0x7606), USB_DEVICE_DATA(BOARD_505) }, | |
231 | /* | |
232 | * at76c505-rfmd2958 | |
233 | */ | |
234 | /* Generic AT76C505/RFMD, OvisLink WL-1130USB */ | |
235 | { USB_DEVICE(0x03eb, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) }, | |
236 | /* Fiberline FL-WL240U */ | |
237 | { USB_DEVICE(0x1371, 0x0014), USB_DEVICE_DATA(BOARD_505_2958) }, | |
238 | /* CNet CNUSB-611G */ | |
239 | { USB_DEVICE(0x1371, 0x0013), USB_DEVICE_DATA(BOARD_505_2958) }, | |
240 | /* Linksys WUSB11 v2.8 */ | |
241 | { USB_DEVICE(0x1915, 0x2233), USB_DEVICE_DATA(BOARD_505_2958) }, | |
242 | /* Xterasys XN-2122B, IBlitzz BWU613B/BWU613SB */ | |
243 | { USB_DEVICE(0x12fd, 0x1001), USB_DEVICE_DATA(BOARD_505_2958) }, | |
244 | /* Corega WLAN USB Stick 11 */ | |
245 | { USB_DEVICE(0x07aa, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) }, | |
246 | /* Microstar MSI Box MS6978 */ | |
247 | { USB_DEVICE(0x0db0, 0x1020), USB_DEVICE_DATA(BOARD_505_2958) }, | |
248 | /* | |
249 | * at76c505a-rfmd2958 | |
250 | */ | |
251 | /* Generic AT76C505A device */ | |
252 | { USB_DEVICE(0x03eb, 0x7614), USB_DEVICE_DATA(BOARD_505A) }, | |
253 | /* Generic AT76C505AS device */ | |
254 | { USB_DEVICE(0x03eb, 0x7617), USB_DEVICE_DATA(BOARD_505A) }, | |
255 | /* Siemens Gigaset USB WLAN Adapter 11 */ | |
256 | { USB_DEVICE(0x1690, 0x0701), USB_DEVICE_DATA(BOARD_505A) }, | |
257 | /* | |
258 | * at76c505amx-rfmd | |
259 | */ | |
260 | /* Generic AT76C505AMX device */ | |
261 | { USB_DEVICE(0x03eb, 0x7615), USB_DEVICE_DATA(BOARD_505AMX) }, | |
262 | { } | |
263 | }; | |
264 | ||
265 | MODULE_DEVICE_TABLE(usb, dev_table); | |
266 | ||
267 | /* Supported rates of this hardware, bit 7 marks basic rates */ | |
268 | static const u8 hw_rates[] = { 0x82, 0x84, 0x0b, 0x16 }; | |
269 | ||
270 | static const char *const preambles[] = { "long", "short", "auto" }; | |
271 | ||
272 | /* Firmware download */ | |
273 | /* DFU states */ | |
274 | #define STATE_IDLE 0x00 | |
275 | #define STATE_DETACH 0x01 | |
276 | #define STATE_DFU_IDLE 0x02 | |
277 | #define STATE_DFU_DOWNLOAD_SYNC 0x03 | |
278 | #define STATE_DFU_DOWNLOAD_BUSY 0x04 | |
279 | #define STATE_DFU_DOWNLOAD_IDLE 0x05 | |
280 | #define STATE_DFU_MANIFEST_SYNC 0x06 | |
281 | #define STATE_DFU_MANIFEST 0x07 | |
282 | #define STATE_DFU_MANIFEST_WAIT_RESET 0x08 | |
283 | #define STATE_DFU_UPLOAD_IDLE 0x09 | |
284 | #define STATE_DFU_ERROR 0x0a | |
285 | ||
286 | /* DFU commands */ | |
287 | #define DFU_DETACH 0 | |
288 | #define DFU_DNLOAD 1 | |
289 | #define DFU_UPLOAD 2 | |
290 | #define DFU_GETSTATUS 3 | |
291 | #define DFU_CLRSTATUS 4 | |
292 | #define DFU_GETSTATE 5 | |
293 | #define DFU_ABORT 6 | |
294 | ||
295 | #define FW_BLOCK_SIZE 1024 | |
296 | ||
297 | struct dfu_status { | |
298 | unsigned char status; | |
299 | unsigned char poll_timeout[3]; | |
300 | unsigned char state; | |
301 | unsigned char string; | |
302 | } __attribute__((packed)); | |
303 | ||
304 | static inline int at76_is_intersil(enum board_type board) | |
305 | { | |
306 | return (board == BOARD_503_ISL3861 || board == BOARD_503_ISL3863); | |
307 | } | |
308 | ||
309 | static inline int at76_is_503rfmd(enum board_type board) | |
310 | { | |
311 | return (board == BOARD_503 || board == BOARD_503_ACC); | |
312 | } | |
313 | ||
314 | static inline int at76_is_505a(enum board_type board) | |
315 | { | |
316 | return (board == BOARD_505A || board == BOARD_505AMX); | |
317 | } | |
318 | ||
319 | /* Load a block of the first (internal) part of the firmware */ | |
320 | static int at76_load_int_fw_block(struct usb_device *udev, int blockno, | |
321 | void *block, int size) | |
322 | { | |
323 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), DFU_DNLOAD, | |
324 | USB_TYPE_CLASS | USB_DIR_OUT | | |
325 | USB_RECIP_INTERFACE, blockno, 0, block, size, | |
326 | USB_CTRL_GET_TIMEOUT); | |
327 | } | |
328 | ||
329 | static int at76_dfu_get_status(struct usb_device *udev, | |
330 | struct dfu_status *status) | |
331 | { | |
332 | int ret; | |
333 | ||
334 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATUS, | |
335 | USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, | |
336 | 0, 0, status, sizeof(struct dfu_status), | |
337 | USB_CTRL_GET_TIMEOUT); | |
338 | return ret; | |
339 | } | |
340 | ||
341 | static u8 at76_dfu_get_state(struct usb_device *udev, u8 *state) | |
342 | { | |
343 | int ret; | |
344 | ||
345 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATE, | |
346 | USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, | |
347 | 0, 0, state, 1, USB_CTRL_GET_TIMEOUT); | |
348 | return ret; | |
349 | } | |
350 | ||
351 | /* Convert timeout from the DFU status to jiffies */ | |
352 | static inline unsigned long at76_get_timeout(struct dfu_status *s) | |
353 | { | |
354 | return msecs_to_jiffies((s->poll_timeout[2] << 16) | |
355 | | (s->poll_timeout[1] << 8) | |
356 | | (s->poll_timeout[0])); | |
357 | } | |
358 | ||
359 | /* Load internal firmware from the buffer. If manifest_sync_timeout > 0, use | |
360 | * its value in jiffies in the MANIFEST_SYNC state. */ | |
361 | static int at76_usbdfu_download(struct usb_device *udev, u8 *buf, u32 size, | |
362 | int manifest_sync_timeout) | |
363 | { | |
364 | u8 *block; | |
365 | struct dfu_status dfu_stat_buf; | |
366 | int ret = 0; | |
367 | int need_dfu_state = 1; | |
368 | int is_done = 0; | |
369 | u8 dfu_state = 0; | |
370 | u32 dfu_timeout = 0; | |
371 | int bsize = 0; | |
372 | int blockno = 0; | |
373 | ||
374 | at76_dbg(DBG_DFU, "%s( %p, %u, %d)", __func__, buf, size, | |
375 | manifest_sync_timeout); | |
376 | ||
377 | if (!size) { | |
378 | dev_printk(KERN_ERR, &udev->dev, "FW buffer length invalid!\n"); | |
379 | return -EINVAL; | |
380 | } | |
381 | ||
382 | block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL); | |
383 | if (!block) | |
384 | return -ENOMEM; | |
385 | ||
386 | do { | |
387 | if (need_dfu_state) { | |
388 | ret = at76_dfu_get_state(udev, &dfu_state); | |
389 | if (ret < 0) { | |
390 | dev_printk(KERN_ERR, &udev->dev, | |
391 | "cannot get DFU state: %d\n", ret); | |
392 | goto exit; | |
393 | } | |
394 | need_dfu_state = 0; | |
395 | } | |
396 | ||
397 | switch (dfu_state) { | |
398 | case STATE_DFU_DOWNLOAD_SYNC: | |
399 | at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_SYNC"); | |
400 | ret = at76_dfu_get_status(udev, &dfu_stat_buf); | |
401 | if (ret >= 0) { | |
402 | dfu_state = dfu_stat_buf.state; | |
403 | dfu_timeout = at76_get_timeout(&dfu_stat_buf); | |
404 | need_dfu_state = 0; | |
405 | } else | |
406 | dev_printk(KERN_ERR, &udev->dev, | |
407 | "at76_dfu_get_status returned %d\n", | |
408 | ret); | |
409 | break; | |
410 | ||
411 | case STATE_DFU_DOWNLOAD_BUSY: | |
412 | at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_BUSY"); | |
413 | need_dfu_state = 1; | |
414 | ||
415 | at76_dbg(DBG_DFU, "DFU: Resetting device"); | |
416 | schedule_timeout_interruptible(dfu_timeout); | |
417 | break; | |
418 | ||
419 | case STATE_DFU_DOWNLOAD_IDLE: | |
420 | at76_dbg(DBG_DFU, "DOWNLOAD..."); | |
421 | /* fall through */ | |
422 | case STATE_DFU_IDLE: | |
423 | at76_dbg(DBG_DFU, "DFU IDLE"); | |
424 | ||
425 | bsize = min_t(int, size, FW_BLOCK_SIZE); | |
426 | memcpy(block, buf, bsize); | |
427 | at76_dbg(DBG_DFU, "int fw, size left = %5d, " | |
428 | "bsize = %4d, blockno = %2d", size, bsize, | |
429 | blockno); | |
430 | ret = | |
431 | at76_load_int_fw_block(udev, blockno, block, bsize); | |
432 | buf += bsize; | |
433 | size -= bsize; | |
434 | blockno++; | |
435 | ||
436 | if (ret != bsize) | |
437 | dev_printk(KERN_ERR, &udev->dev, | |
438 | "at76_load_int_fw_block " | |
439 | "returned %d\n", ret); | |
440 | need_dfu_state = 1; | |
441 | break; | |
442 | ||
443 | case STATE_DFU_MANIFEST_SYNC: | |
444 | at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_SYNC"); | |
445 | ||
446 | ret = at76_dfu_get_status(udev, &dfu_stat_buf); | |
447 | if (ret < 0) | |
448 | break; | |
449 | ||
450 | dfu_state = dfu_stat_buf.state; | |
451 | dfu_timeout = at76_get_timeout(&dfu_stat_buf); | |
452 | need_dfu_state = 0; | |
453 | ||
454 | /* override the timeout from the status response, | |
455 | needed for AT76C505A */ | |
456 | if (manifest_sync_timeout > 0) | |
457 | dfu_timeout = manifest_sync_timeout; | |
458 | ||
459 | at76_dbg(DBG_DFU, "DFU: Waiting for manifest phase"); | |
460 | schedule_timeout_interruptible(dfu_timeout); | |
461 | break; | |
462 | ||
463 | case STATE_DFU_MANIFEST: | |
464 | at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST"); | |
465 | is_done = 1; | |
466 | break; | |
467 | ||
468 | case STATE_DFU_MANIFEST_WAIT_RESET: | |
469 | at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_WAIT_RESET"); | |
470 | is_done = 1; | |
471 | break; | |
472 | ||
473 | case STATE_DFU_UPLOAD_IDLE: | |
474 | at76_dbg(DBG_DFU, "STATE_DFU_UPLOAD_IDLE"); | |
475 | break; | |
476 | ||
477 | case STATE_DFU_ERROR: | |
478 | at76_dbg(DBG_DFU, "STATE_DFU_ERROR"); | |
479 | ret = -EPIPE; | |
480 | break; | |
481 | ||
482 | default: | |
483 | at76_dbg(DBG_DFU, "DFU UNKNOWN STATE (%d)", dfu_state); | |
484 | ret = -EINVAL; | |
485 | break; | |
486 | } | |
487 | } while (!is_done && (ret >= 0)); | |
488 | ||
489 | exit: | |
490 | kfree(block); | |
491 | if (ret >= 0) | |
492 | ret = 0; | |
493 | ||
494 | return ret; | |
495 | } | |
496 | ||
497 | #define HEX2STR_BUFFERS 4 | |
498 | #define HEX2STR_MAX_LEN 64 | |
499 | #define BIN2HEX(x) ((x) < 10 ? '0' + (x) : (x) + 'A' - 10) | |
500 | ||
501 | /* Convert binary data into hex string */ | |
502 | static char *hex2str(void *buf, int len) | |
503 | { | |
504 | static atomic_t a = ATOMIC_INIT(0); | |
505 | static char bufs[HEX2STR_BUFFERS][3 * HEX2STR_MAX_LEN + 1]; | |
506 | char *ret = bufs[atomic_inc_return(&a) & (HEX2STR_BUFFERS - 1)]; | |
507 | char *obuf = ret; | |
508 | u8 *ibuf = buf; | |
509 | ||
510 | if (len > HEX2STR_MAX_LEN) | |
511 | len = HEX2STR_MAX_LEN; | |
512 | ||
513 | if (len <= 0) { | |
514 | ret[0] = '\0'; | |
515 | return ret; | |
516 | } | |
517 | ||
518 | while (len--) { | |
519 | *obuf++ = BIN2HEX(*ibuf >> 4); | |
520 | *obuf++ = BIN2HEX(*ibuf & 0xf); | |
521 | *obuf++ = '-'; | |
522 | ibuf++; | |
523 | } | |
524 | *(--obuf) = '\0'; | |
525 | ||
526 | return ret; | |
527 | } | |
528 | ||
529 | #define MAC2STR_BUFFERS 4 | |
530 | ||
531 | static inline char *mac2str(u8 *mac) | |
532 | { | |
533 | static atomic_t a = ATOMIC_INIT(0); | |
534 | static char bufs[MAC2STR_BUFFERS][6 * 3]; | |
535 | char *str; | |
536 | ||
537 | str = bufs[atomic_inc_return(&a) & (MAC2STR_BUFFERS - 1)]; | |
538 | sprintf(str, "%02x:%02x:%02x:%02x:%02x:%02x", | |
539 | mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); | |
540 | return str; | |
541 | } | |
542 | ||
543 | /* LED trigger */ | |
544 | static int tx_activity; | |
545 | static void at76_ledtrig_tx_timerfunc(unsigned long data); | |
546 | static DEFINE_TIMER(ledtrig_tx_timer, at76_ledtrig_tx_timerfunc, 0, 0); | |
547 | DEFINE_LED_TRIGGER(ledtrig_tx); | |
548 | ||
549 | static void at76_ledtrig_tx_timerfunc(unsigned long data) | |
550 | { | |
551 | static int tx_lastactivity; | |
552 | ||
553 | if (tx_lastactivity != tx_activity) { | |
554 | tx_lastactivity = tx_activity; | |
555 | led_trigger_event(ledtrig_tx, LED_FULL); | |
556 | mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4); | |
557 | } else | |
558 | led_trigger_event(ledtrig_tx, LED_OFF); | |
559 | } | |
560 | ||
561 | static void at76_ledtrig_tx_activity(void) | |
562 | { | |
563 | tx_activity++; | |
564 | if (!timer_pending(&ledtrig_tx_timer)) | |
565 | mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4); | |
566 | } | |
567 | ||
568 | static int at76_remap(struct usb_device *udev) | |
569 | { | |
570 | int ret; | |
571 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0a, | |
572 | USB_TYPE_VENDOR | USB_DIR_OUT | | |
573 | USB_RECIP_INTERFACE, 0, 0, NULL, 0, | |
574 | USB_CTRL_GET_TIMEOUT); | |
575 | if (ret < 0) | |
576 | return ret; | |
577 | return 0; | |
578 | } | |
579 | ||
580 | static int at76_get_op_mode(struct usb_device *udev) | |
581 | { | |
582 | int ret; | |
583 | u8 op_mode; | |
584 | ||
585 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, | |
586 | USB_TYPE_VENDOR | USB_DIR_IN | | |
587 | USB_RECIP_INTERFACE, 0x01, 0, &op_mode, 1, | |
588 | USB_CTRL_GET_TIMEOUT); | |
589 | if (ret < 0) | |
590 | return ret; | |
591 | else if (ret < 1) | |
592 | return -EIO; | |
593 | else | |
594 | return op_mode; | |
595 | } | |
596 | ||
597 | /* Load a block of the second ("external") part of the firmware */ | |
598 | static inline int at76_load_ext_fw_block(struct usb_device *udev, int blockno, | |
599 | void *block, int size) | |
600 | { | |
601 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e, | |
602 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
603 | 0x0802, blockno, block, size, | |
604 | USB_CTRL_GET_TIMEOUT); | |
605 | } | |
606 | ||
607 | static inline int at76_get_hw_cfg(struct usb_device *udev, | |
608 | union at76_hwcfg *buf, int buf_size) | |
609 | { | |
610 | return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, | |
611 | USB_TYPE_VENDOR | USB_DIR_IN | | |
612 | USB_RECIP_INTERFACE, 0x0a02, 0, | |
613 | buf, buf_size, USB_CTRL_GET_TIMEOUT); | |
614 | } | |
615 | ||
616 | /* Intersil boards use a different "value" for GetHWConfig requests */ | |
617 | static inline int at76_get_hw_cfg_intersil(struct usb_device *udev, | |
618 | union at76_hwcfg *buf, int buf_size) | |
619 | { | |
620 | return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, | |
621 | USB_TYPE_VENDOR | USB_DIR_IN | | |
622 | USB_RECIP_INTERFACE, 0x0902, 0, | |
623 | buf, buf_size, USB_CTRL_GET_TIMEOUT); | |
624 | } | |
625 | ||
626 | /* Get the hardware configuration for the adapter and put it to the appropriate | |
627 | * fields of 'priv' (the GetHWConfig request and interpretation of the result | |
628 | * depends on the board type) */ | |
629 | static int at76_get_hw_config(struct at76_priv *priv) | |
630 | { | |
631 | int ret; | |
632 | union at76_hwcfg *hwcfg = kmalloc(sizeof(*hwcfg), GFP_KERNEL); | |
633 | ||
634 | if (!hwcfg) | |
635 | return -ENOMEM; | |
636 | ||
637 | if (at76_is_intersil(priv->board_type)) { | |
638 | ret = at76_get_hw_cfg_intersil(priv->udev, hwcfg, | |
639 | sizeof(hwcfg->i)); | |
640 | if (ret < 0) | |
641 | goto exit; | |
642 | memcpy(priv->mac_addr, hwcfg->i.mac_addr, ETH_ALEN); | |
643 | priv->regulatory_domain = hwcfg->i.regulatory_domain; | |
644 | } else if (at76_is_503rfmd(priv->board_type)) { | |
645 | ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r3)); | |
646 | if (ret < 0) | |
647 | goto exit; | |
648 | memcpy(priv->mac_addr, hwcfg->r3.mac_addr, ETH_ALEN); | |
649 | priv->regulatory_domain = hwcfg->r3.regulatory_domain; | |
650 | } else { | |
651 | ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r5)); | |
652 | if (ret < 0) | |
653 | goto exit; | |
654 | memcpy(priv->mac_addr, hwcfg->r5.mac_addr, ETH_ALEN); | |
655 | priv->regulatory_domain = hwcfg->r5.regulatory_domain; | |
656 | } | |
657 | ||
658 | exit: | |
659 | kfree(hwcfg); | |
660 | if (ret < 0) | |
661 | printk(KERN_ERR "%s: cannot get HW Config (error %d)\n", | |
662 | wiphy_name(priv->hw->wiphy), ret); | |
663 | ||
664 | return ret; | |
665 | } | |
666 | ||
667 | static struct reg_domain const *at76_get_reg_domain(u16 code) | |
668 | { | |
669 | int i; | |
670 | static struct reg_domain const fd_tab[] = { | |
671 | { 0x10, "FCC (USA)", 0x7ff }, /* ch 1-11 */ | |
672 | { 0x20, "IC (Canada)", 0x7ff }, /* ch 1-11 */ | |
673 | { 0x30, "ETSI (most of Europe)", 0x1fff }, /* ch 1-13 */ | |
674 | { 0x31, "Spain", 0x600 }, /* ch 10-11 */ | |
675 | { 0x32, "France", 0x1e00 }, /* ch 10-13 */ | |
676 | { 0x40, "MKK (Japan)", 0x2000 }, /* ch 14 */ | |
677 | { 0x41, "MKK1 (Japan)", 0x3fff }, /* ch 1-14 */ | |
678 | { 0x50, "Israel", 0x3fc }, /* ch 3-9 */ | |
679 | { 0x00, "<unknown>", 0xffffffff } /* ch 1-32 */ | |
680 | }; | |
681 | ||
682 | /* Last entry is fallback for unknown domain code */ | |
683 | for (i = 0; i < ARRAY_SIZE(fd_tab) - 1; i++) | |
684 | if (code == fd_tab[i].code) | |
685 | break; | |
686 | ||
687 | return &fd_tab[i]; | |
688 | } | |
689 | ||
690 | static inline int at76_get_mib(struct usb_device *udev, u16 mib, void *buf, | |
691 | int buf_size) | |
692 | { | |
693 | int ret; | |
694 | ||
695 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, | |
696 | USB_TYPE_VENDOR | USB_DIR_IN | | |
697 | USB_RECIP_INTERFACE, mib << 8, 0, buf, buf_size, | |
698 | USB_CTRL_GET_TIMEOUT); | |
699 | if (ret >= 0 && ret != buf_size) | |
700 | return -EIO; | |
701 | return ret; | |
702 | } | |
703 | ||
704 | /* Return positive number for status, negative for an error */ | |
705 | static inline int at76_get_cmd_status(struct usb_device *udev, u8 cmd) | |
706 | { | |
707 | u8 stat_buf[40]; | |
708 | int ret; | |
709 | ||
710 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x22, | |
711 | USB_TYPE_VENDOR | USB_DIR_IN | | |
712 | USB_RECIP_INTERFACE, cmd, 0, stat_buf, | |
713 | sizeof(stat_buf), USB_CTRL_GET_TIMEOUT); | |
714 | if (ret < 0) | |
715 | return ret; | |
716 | ||
717 | return stat_buf[5]; | |
718 | } | |
719 | ||
720 | #define MAKE_CMD_CASE(c) case (c): return #c | |
721 | ||
722 | static const char *at76_get_cmd_string(u8 cmd_status) | |
723 | { | |
724 | switch (cmd_status) { | |
725 | MAKE_CMD_CASE(CMD_SET_MIB); | |
726 | MAKE_CMD_CASE(CMD_GET_MIB); | |
727 | MAKE_CMD_CASE(CMD_SCAN); | |
728 | MAKE_CMD_CASE(CMD_JOIN); | |
729 | MAKE_CMD_CASE(CMD_START_IBSS); | |
730 | MAKE_CMD_CASE(CMD_RADIO_ON); | |
731 | MAKE_CMD_CASE(CMD_RADIO_OFF); | |
732 | MAKE_CMD_CASE(CMD_STARTUP); | |
733 | } | |
734 | ||
735 | return "UNKNOWN"; | |
736 | } | |
737 | ||
738 | static int at76_set_card_command(struct usb_device *udev, int cmd, void *buf, | |
739 | int buf_size) | |
740 | { | |
741 | int ret; | |
742 | struct at76_command *cmd_buf = kmalloc(sizeof(struct at76_command) + | |
743 | buf_size, GFP_KERNEL); | |
744 | ||
745 | if (!cmd_buf) | |
746 | return -ENOMEM; | |
747 | ||
748 | cmd_buf->cmd = cmd; | |
749 | cmd_buf->reserved = 0; | |
750 | cmd_buf->size = cpu_to_le16(buf_size); | |
751 | memcpy(cmd_buf->data, buf, buf_size); | |
752 | ||
753 | at76_dbg_dump(DBG_CMD, cmd_buf, sizeof(struct at76_command) + buf_size, | |
754 | "issuing command %s (0x%02x)", | |
755 | at76_get_cmd_string(cmd), cmd); | |
756 | ||
757 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e, | |
758 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
759 | 0, 0, cmd_buf, | |
760 | sizeof(struct at76_command) + buf_size, | |
761 | USB_CTRL_GET_TIMEOUT); | |
762 | kfree(cmd_buf); | |
763 | return ret; | |
764 | } | |
765 | ||
766 | #define MAKE_CMD_STATUS_CASE(c) case (c): return #c | |
767 | static const char *at76_get_cmd_status_string(u8 cmd_status) | |
768 | { | |
769 | switch (cmd_status) { | |
770 | MAKE_CMD_STATUS_CASE(CMD_STATUS_IDLE); | |
771 | MAKE_CMD_STATUS_CASE(CMD_STATUS_COMPLETE); | |
772 | MAKE_CMD_STATUS_CASE(CMD_STATUS_UNKNOWN); | |
773 | MAKE_CMD_STATUS_CASE(CMD_STATUS_INVALID_PARAMETER); | |
774 | MAKE_CMD_STATUS_CASE(CMD_STATUS_FUNCTION_NOT_SUPPORTED); | |
775 | MAKE_CMD_STATUS_CASE(CMD_STATUS_TIME_OUT); | |
776 | MAKE_CMD_STATUS_CASE(CMD_STATUS_IN_PROGRESS); | |
777 | MAKE_CMD_STATUS_CASE(CMD_STATUS_HOST_FAILURE); | |
778 | MAKE_CMD_STATUS_CASE(CMD_STATUS_SCAN_FAILED); | |
779 | } | |
780 | ||
781 | return "UNKNOWN"; | |
782 | } | |
783 | ||
784 | /* Wait until the command is completed */ | |
785 | static int at76_wait_completion(struct at76_priv *priv, int cmd) | |
786 | { | |
787 | int status = 0; | |
788 | unsigned long timeout = jiffies + CMD_COMPLETION_TIMEOUT; | |
789 | ||
790 | do { | |
791 | status = at76_get_cmd_status(priv->udev, cmd); | |
792 | if (status < 0) { | |
793 | printk(KERN_ERR "%s: at76_get_cmd_status failed: %d\n", | |
794 | wiphy_name(priv->hw->wiphy), status); | |
795 | break; | |
796 | } | |
797 | ||
798 | at76_dbg(DBG_WAIT_COMPLETE, | |
799 | "%s: Waiting on cmd %d, status = %d (%s)", | |
800 | wiphy_name(priv->hw->wiphy), cmd, status, | |
801 | at76_get_cmd_status_string(status)); | |
802 | ||
803 | if (status != CMD_STATUS_IN_PROGRESS | |
804 | && status != CMD_STATUS_IDLE) | |
805 | break; | |
806 | ||
807 | schedule_timeout_interruptible(HZ / 10); /* 100 ms */ | |
808 | if (time_after(jiffies, timeout)) { | |
809 | printk(KERN_ERR | |
810 | "%s: completion timeout for command %d\n", | |
811 | wiphy_name(priv->hw->wiphy), cmd); | |
812 | status = -ETIMEDOUT; | |
813 | break; | |
814 | } | |
815 | } while (1); | |
816 | ||
817 | return status; | |
818 | } | |
819 | ||
820 | static int at76_set_mib(struct at76_priv *priv, struct set_mib_buffer *buf) | |
821 | { | |
822 | int ret; | |
823 | ||
824 | ret = at76_set_card_command(priv->udev, CMD_SET_MIB, buf, | |
825 | offsetof(struct set_mib_buffer, | |
826 | data) + buf->size); | |
827 | if (ret < 0) | |
828 | return ret; | |
829 | ||
830 | ret = at76_wait_completion(priv, CMD_SET_MIB); | |
831 | if (ret != CMD_STATUS_COMPLETE) { | |
832 | printk(KERN_INFO | |
833 | "%s: set_mib: at76_wait_completion failed " | |
834 | "with %d\n", wiphy_name(priv->hw->wiphy), ret); | |
835 | ret = -EIO; | |
836 | } | |
837 | ||
838 | return ret; | |
839 | } | |
840 | ||
841 | /* Return < 0 on error, == 0 if no command sent, == 1 if cmd sent */ | |
842 | static int at76_set_radio(struct at76_priv *priv, int enable) | |
843 | { | |
844 | int ret; | |
845 | int cmd; | |
846 | ||
847 | if (priv->radio_on == enable) | |
848 | return 0; | |
849 | ||
850 | cmd = enable ? CMD_RADIO_ON : CMD_RADIO_OFF; | |
851 | ||
852 | ret = at76_set_card_command(priv->udev, cmd, NULL, 0); | |
853 | if (ret < 0) | |
854 | printk(KERN_ERR "%s: at76_set_card_command(%d) failed: %d\n", | |
855 | wiphy_name(priv->hw->wiphy), cmd, ret); | |
856 | else | |
857 | ret = 1; | |
858 | ||
859 | priv->radio_on = enable; | |
860 | return ret; | |
861 | } | |
862 | ||
863 | /* Set current power save mode (AT76_PM_OFF/AT76_PM_ON/AT76_PM_SMART) */ | |
864 | static int at76_set_pm_mode(struct at76_priv *priv) | |
865 | { | |
866 | int ret = 0; | |
867 | ||
868 | priv->mib_buf.type = MIB_MAC_MGMT; | |
869 | priv->mib_buf.size = 1; | |
870 | priv->mib_buf.index = offsetof(struct mib_mac_mgmt, power_mgmt_mode); | |
871 | priv->mib_buf.data.byte = priv->pm_mode; | |
872 | ||
873 | ret = at76_set_mib(priv, &priv->mib_buf); | |
874 | if (ret < 0) | |
875 | printk(KERN_ERR "%s: set_mib (pm_mode) failed: %d\n", | |
876 | wiphy_name(priv->hw->wiphy), ret); | |
877 | ||
878 | return ret; | |
879 | } | |
880 | ||
881 | static int at76_set_preamble(struct at76_priv *priv, u8 type) | |
882 | { | |
883 | int ret = 0; | |
884 | ||
885 | priv->mib_buf.type = MIB_LOCAL; | |
886 | priv->mib_buf.size = 1; | |
887 | priv->mib_buf.index = offsetof(struct mib_local, preamble_type); | |
888 | priv->mib_buf.data.byte = type; | |
889 | ||
890 | ret = at76_set_mib(priv, &priv->mib_buf); | |
891 | if (ret < 0) | |
892 | printk(KERN_ERR "%s: set_mib (preamble) failed: %d\n", | |
893 | wiphy_name(priv->hw->wiphy), ret); | |
894 | ||
895 | return ret; | |
896 | } | |
897 | ||
898 | static int at76_set_frag(struct at76_priv *priv, u16 size) | |
899 | { | |
900 | int ret = 0; | |
901 | ||
902 | priv->mib_buf.type = MIB_MAC; | |
903 | priv->mib_buf.size = 2; | |
904 | priv->mib_buf.index = offsetof(struct mib_mac, frag_threshold); | |
905 | priv->mib_buf.data.word = cpu_to_le16(size); | |
906 | ||
907 | ret = at76_set_mib(priv, &priv->mib_buf); | |
908 | if (ret < 0) | |
909 | printk(KERN_ERR "%s: set_mib (frag threshold) failed: %d\n", | |
910 | wiphy_name(priv->hw->wiphy), ret); | |
911 | ||
912 | return ret; | |
913 | } | |
914 | ||
915 | static int at76_set_rts(struct at76_priv *priv, u16 size) | |
916 | { | |
917 | int ret = 0; | |
918 | ||
919 | priv->mib_buf.type = MIB_MAC; | |
920 | priv->mib_buf.size = 2; | |
921 | priv->mib_buf.index = offsetof(struct mib_mac, rts_threshold); | |
922 | priv->mib_buf.data.word = cpu_to_le16(size); | |
923 | ||
924 | ret = at76_set_mib(priv, &priv->mib_buf); | |
925 | if (ret < 0) | |
926 | printk(KERN_ERR "%s: set_mib (rts) failed: %d\n", | |
927 | wiphy_name(priv->hw->wiphy), ret); | |
928 | ||
929 | return ret; | |
930 | } | |
931 | ||
932 | static int at76_set_autorate_fallback(struct at76_priv *priv, int onoff) | |
933 | { | |
934 | int ret = 0; | |
935 | ||
936 | priv->mib_buf.type = MIB_LOCAL; | |
937 | priv->mib_buf.size = 1; | |
938 | priv->mib_buf.index = offsetof(struct mib_local, txautorate_fallback); | |
939 | priv->mib_buf.data.byte = onoff; | |
940 | ||
941 | ret = at76_set_mib(priv, &priv->mib_buf); | |
942 | if (ret < 0) | |
943 | printk(KERN_ERR "%s: set_mib (autorate fallback) failed: %d\n", | |
944 | wiphy_name(priv->hw->wiphy), ret); | |
945 | ||
946 | return ret; | |
947 | } | |
948 | ||
949 | static void at76_dump_mib_mac_addr(struct at76_priv *priv) | |
950 | { | |
951 | int i; | |
952 | int ret; | |
953 | struct mib_mac_addr *m = kmalloc(sizeof(struct mib_mac_addr), | |
954 | GFP_KERNEL); | |
955 | ||
956 | if (!m) | |
957 | return; | |
958 | ||
959 | ret = at76_get_mib(priv->udev, MIB_MAC_ADDR, m, | |
960 | sizeof(struct mib_mac_addr)); | |
961 | if (ret < 0) { | |
962 | printk(KERN_ERR "%s: at76_get_mib (MAC_ADDR) failed: %d\n", | |
963 | wiphy_name(priv->hw->wiphy), ret); | |
964 | goto exit; | |
965 | } | |
966 | ||
967 | at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: mac_addr %s res 0x%x 0x%x", | |
968 | wiphy_name(priv->hw->wiphy), | |
969 | mac2str(m->mac_addr), m->res[0], m->res[1]); | |
970 | for (i = 0; i < ARRAY_SIZE(m->group_addr); i++) | |
971 | at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: group addr %d: %s, " | |
972 | "status %d", wiphy_name(priv->hw->wiphy), i, | |
973 | mac2str(m->group_addr[i]), m->group_addr_status[i]); | |
974 | exit: | |
975 | kfree(m); | |
976 | } | |
977 | ||
978 | static void at76_dump_mib_mac_wep(struct at76_priv *priv) | |
979 | { | |
980 | int i; | |
981 | int ret; | |
982 | int key_len; | |
983 | struct mib_mac_wep *m = kmalloc(sizeof(struct mib_mac_wep), GFP_KERNEL); | |
984 | ||
985 | if (!m) | |
986 | return; | |
987 | ||
988 | ret = at76_get_mib(priv->udev, MIB_MAC_WEP, m, | |
989 | sizeof(struct mib_mac_wep)); | |
990 | if (ret < 0) { | |
991 | printk(KERN_ERR "%s: at76_get_mib (MAC_WEP) failed: %d\n", | |
992 | wiphy_name(priv->hw->wiphy), ret); | |
993 | goto exit; | |
994 | } | |
995 | ||
996 | at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: priv_invoked %u def_key_id %u " | |
997 | "key_len %u excl_unencr %u wep_icv_err %u wep_excluded %u " | |
998 | "encr_level %u key %d", wiphy_name(priv->hw->wiphy), | |
999 | m->privacy_invoked, m->wep_default_key_id, | |
1000 | m->wep_key_mapping_len, m->exclude_unencrypted, | |
1001 | le32_to_cpu(m->wep_icv_error_count), | |
1002 | le32_to_cpu(m->wep_excluded_count), m->encryption_level, | |
1003 | m->wep_default_key_id); | |
1004 | ||
1005 | key_len = (m->encryption_level == 1) ? | |
1006 | WEP_SMALL_KEY_LEN : WEP_LARGE_KEY_LEN; | |
1007 | ||
1008 | for (i = 0; i < WEP_KEYS; i++) | |
1009 | at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: key %d: %s", | |
1010 | wiphy_name(priv->hw->wiphy), i, | |
1011 | hex2str(m->wep_default_keyvalue[i], key_len)); | |
1012 | exit: | |
1013 | kfree(m); | |
1014 | } | |
1015 | ||
1016 | static void at76_dump_mib_mac_mgmt(struct at76_priv *priv) | |
1017 | { | |
1018 | int ret; | |
1019 | struct mib_mac_mgmt *m = kmalloc(sizeof(struct mib_mac_mgmt), | |
1020 | GFP_KERNEL); | |
1021 | ||
1022 | if (!m) | |
1023 | return; | |
1024 | ||
1025 | ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, m, | |
1026 | sizeof(struct mib_mac_mgmt)); | |
1027 | if (ret < 0) { | |
1028 | printk(KERN_ERR "%s: at76_get_mib (MAC_MGMT) failed: %d\n", | |
1029 | wiphy_name(priv->hw->wiphy), ret); | |
1030 | goto exit; | |
1031 | } | |
1032 | ||
1033 | at76_dbg(DBG_MIB, "%s: MIB MAC_MGMT: beacon_period %d CFP_max_duration " | |
1034 | "%d medium_occupancy_limit %d station_id 0x%x ATIM_window %d " | |
1035 | "CFP_mode %d privacy_opt_impl %d DTIM_period %d CFP_period %d " | |
1036 | "current_bssid %s current_essid %s current_bss_type %d " | |
1037 | "pm_mode %d ibss_change %d res %d " | |
1038 | "multi_domain_capability_implemented %d " | |
1039 | "international_roaming %d country_string %.3s", | |
1040 | wiphy_name(priv->hw->wiphy), le16_to_cpu(m->beacon_period), | |
1041 | le16_to_cpu(m->CFP_max_duration), | |
1042 | le16_to_cpu(m->medium_occupancy_limit), | |
1043 | le16_to_cpu(m->station_id), le16_to_cpu(m->ATIM_window), | |
1044 | m->CFP_mode, m->privacy_option_implemented, m->DTIM_period, | |
1045 | m->CFP_period, mac2str(m->current_bssid), | |
1046 | hex2str(m->current_essid, IW_ESSID_MAX_SIZE), | |
1047 | m->current_bss_type, m->power_mgmt_mode, m->ibss_change, | |
1048 | m->res, m->multi_domain_capability_implemented, | |
1049 | m->multi_domain_capability_enabled, m->country_string); | |
1050 | exit: | |
1051 | kfree(m); | |
1052 | } | |
1053 | ||
1054 | static void at76_dump_mib_mac(struct at76_priv *priv) | |
1055 | { | |
1056 | int ret; | |
1057 | struct mib_mac *m = kmalloc(sizeof(struct mib_mac), GFP_KERNEL); | |
1058 | ||
1059 | if (!m) | |
1060 | return; | |
1061 | ||
1062 | ret = at76_get_mib(priv->udev, MIB_MAC, m, sizeof(struct mib_mac)); | |
1063 | if (ret < 0) { | |
1064 | printk(KERN_ERR "%s: at76_get_mib (MAC) failed: %d\n", | |
1065 | wiphy_name(priv->hw->wiphy), ret); | |
1066 | goto exit; | |
1067 | } | |
1068 | ||
1069 | at76_dbg(DBG_MIB, "%s: MIB MAC: max_tx_msdu_lifetime %d " | |
1070 | "max_rx_lifetime %d frag_threshold %d rts_threshold %d " | |
1071 | "cwmin %d cwmax %d short_retry_time %d long_retry_time %d " | |
1072 | "scan_type %d scan_channel %d probe_delay %u " | |
1073 | "min_channel_time %d max_channel_time %d listen_int %d " | |
1074 | "desired_ssid %s desired_bssid %s desired_bsstype %d", | |
1075 | wiphy_name(priv->hw->wiphy), | |
1076 | le32_to_cpu(m->max_tx_msdu_lifetime), | |
1077 | le32_to_cpu(m->max_rx_lifetime), | |
1078 | le16_to_cpu(m->frag_threshold), le16_to_cpu(m->rts_threshold), | |
1079 | le16_to_cpu(m->cwmin), le16_to_cpu(m->cwmax), | |
1080 | m->short_retry_time, m->long_retry_time, m->scan_type, | |
1081 | m->scan_channel, le16_to_cpu(m->probe_delay), | |
1082 | le16_to_cpu(m->min_channel_time), | |
1083 | le16_to_cpu(m->max_channel_time), | |
1084 | le16_to_cpu(m->listen_interval), | |
1085 | hex2str(m->desired_ssid, IW_ESSID_MAX_SIZE), | |
1086 | mac2str(m->desired_bssid), m->desired_bsstype); | |
1087 | exit: | |
1088 | kfree(m); | |
1089 | } | |
1090 | ||
1091 | static void at76_dump_mib_phy(struct at76_priv *priv) | |
1092 | { | |
1093 | int ret; | |
1094 | struct mib_phy *m = kmalloc(sizeof(struct mib_phy), GFP_KERNEL); | |
1095 | ||
1096 | if (!m) | |
1097 | return; | |
1098 | ||
1099 | ret = at76_get_mib(priv->udev, MIB_PHY, m, sizeof(struct mib_phy)); | |
1100 | if (ret < 0) { | |
1101 | printk(KERN_ERR "%s: at76_get_mib (PHY) failed: %d\n", | |
1102 | wiphy_name(priv->hw->wiphy), ret); | |
1103 | goto exit; | |
1104 | } | |
1105 | ||
1106 | at76_dbg(DBG_MIB, "%s: MIB PHY: ed_threshold %d slot_time %d " | |
1107 | "sifs_time %d preamble_length %d plcp_header_length %d " | |
1108 | "mpdu_max_length %d cca_mode_supported %d operation_rate_set " | |
1109 | "0x%x 0x%x 0x%x 0x%x channel_id %d current_cca_mode %d " | |
1110 | "phy_type %d current_reg_domain %d", | |
1111 | wiphy_name(priv->hw->wiphy), le32_to_cpu(m->ed_threshold), | |
1112 | le16_to_cpu(m->slot_time), le16_to_cpu(m->sifs_time), | |
1113 | le16_to_cpu(m->preamble_length), | |
1114 | le16_to_cpu(m->plcp_header_length), | |
1115 | le16_to_cpu(m->mpdu_max_length), | |
1116 | le16_to_cpu(m->cca_mode_supported), m->operation_rate_set[0], | |
1117 | m->operation_rate_set[1], m->operation_rate_set[2], | |
1118 | m->operation_rate_set[3], m->channel_id, m->current_cca_mode, | |
1119 | m->phy_type, m->current_reg_domain); | |
1120 | exit: | |
1121 | kfree(m); | |
1122 | } | |
1123 | ||
1124 | static void at76_dump_mib_local(struct at76_priv *priv) | |
1125 | { | |
1126 | int ret; | |
1127 | struct mib_local *m = kmalloc(sizeof(struct mib_phy), GFP_KERNEL); | |
1128 | ||
1129 | if (!m) | |
1130 | return; | |
1131 | ||
1132 | ret = at76_get_mib(priv->udev, MIB_LOCAL, m, sizeof(struct mib_local)); | |
1133 | if (ret < 0) { | |
1134 | printk(KERN_ERR "%s: at76_get_mib (LOCAL) failed: %d\n", | |
1135 | wiphy_name(priv->hw->wiphy), ret); | |
1136 | goto exit; | |
1137 | } | |
1138 | ||
1139 | at76_dbg(DBG_MIB, "%s: MIB LOCAL: beacon_enable %d " | |
1140 | "txautorate_fallback %d ssid_size %d promiscuous_mode %d " | |
1141 | "preamble_type %d", wiphy_name(priv->hw->wiphy), | |
1142 | m->beacon_enable, | |
1143 | m->txautorate_fallback, m->ssid_size, m->promiscuous_mode, | |
1144 | m->preamble_type); | |
1145 | exit: | |
1146 | kfree(m); | |
1147 | } | |
1148 | ||
1149 | static void at76_dump_mib_mdomain(struct at76_priv *priv) | |
1150 | { | |
1151 | int ret; | |
1152 | struct mib_mdomain *m = kmalloc(sizeof(struct mib_mdomain), GFP_KERNEL); | |
1153 | ||
1154 | if (!m) | |
1155 | return; | |
1156 | ||
1157 | ret = at76_get_mib(priv->udev, MIB_MDOMAIN, m, | |
1158 | sizeof(struct mib_mdomain)); | |
1159 | if (ret < 0) { | |
1160 | printk(KERN_ERR "%s: at76_get_mib (MDOMAIN) failed: %d\n", | |
1161 | wiphy_name(priv->hw->wiphy), ret); | |
1162 | goto exit; | |
1163 | } | |
1164 | ||
1165 | at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: channel_list %s", | |
1166 | wiphy_name(priv->hw->wiphy), | |
1167 | hex2str(m->channel_list, sizeof(m->channel_list))); | |
1168 | ||
1169 | at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: tx_powerlevel %s", | |
1170 | wiphy_name(priv->hw->wiphy), | |
1171 | hex2str(m->tx_powerlevel, sizeof(m->tx_powerlevel))); | |
1172 | exit: | |
1173 | kfree(m); | |
1174 | } | |
1175 | ||
1176 | /* Enable monitor mode */ | |
1177 | static int at76_start_monitor(struct at76_priv *priv) | |
1178 | { | |
1179 | struct at76_req_scan scan; | |
1180 | int ret; | |
1181 | ||
1182 | memset(&scan, 0, sizeof(struct at76_req_scan)); | |
1183 | memset(scan.bssid, 0xff, ETH_ALEN); | |
1184 | ||
1185 | scan.channel = priv->channel; | |
1186 | scan.scan_type = SCAN_TYPE_PASSIVE; | |
1187 | scan.international_scan = 0; | |
1188 | ||
1189 | ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan)); | |
1190 | if (ret >= 0) | |
1191 | ret = at76_get_cmd_status(priv->udev, CMD_SCAN); | |
1192 | ||
1193 | return ret; | |
1194 | } | |
1195 | ||
1196 | /* Calculate padding from txbuf->wlength (which excludes the USB TX header), | |
1197 | likely to compensate a flaw in the AT76C503A USB part ... */ | |
1198 | static inline int at76_calc_padding(int wlen) | |
1199 | { | |
1200 | /* add the USB TX header */ | |
1201 | wlen += AT76_TX_HDRLEN; | |
1202 | ||
1203 | wlen = wlen % 64; | |
1204 | ||
1205 | if (wlen < 50) | |
1206 | return 50 - wlen; | |
1207 | ||
1208 | if (wlen >= 61) | |
1209 | return 64 + 50 - wlen; | |
1210 | ||
1211 | return 0; | |
1212 | } | |
1213 | ||
1214 | static void at76_rx_callback(struct urb *urb) | |
1215 | { | |
1216 | struct at76_priv *priv = urb->context; | |
1217 | ||
1218 | priv->rx_tasklet.data = (unsigned long)urb; | |
1219 | tasklet_schedule(&priv->rx_tasklet); | |
1220 | return; | |
1221 | } | |
1222 | ||
1223 | static int at76_submit_rx_urb(struct at76_priv *priv) | |
1224 | { | |
1225 | int ret; | |
1226 | int size; | |
1227 | struct sk_buff *skb = priv->rx_skb; | |
1228 | ||
1229 | if (!priv->rx_urb) { | |
1230 | printk(KERN_ERR "%s: %s: priv->rx_urb is NULL\n", | |
1231 | wiphy_name(priv->hw->wiphy), __func__); | |
1232 | return -EFAULT; | |
1233 | } | |
1234 | ||
1235 | if (!skb) { | |
1236 | skb = dev_alloc_skb(sizeof(struct at76_rx_buffer)); | |
1237 | if (!skb) { | |
1238 | printk(KERN_ERR "%s: cannot allocate rx skbuff\n", | |
1239 | wiphy_name(priv->hw->wiphy)); | |
1240 | ret = -ENOMEM; | |
1241 | goto exit; | |
1242 | } | |
1243 | priv->rx_skb = skb; | |
1244 | } else { | |
1245 | skb_push(skb, skb_headroom(skb)); | |
1246 | skb_trim(skb, 0); | |
1247 | } | |
1248 | ||
1249 | size = skb_tailroom(skb); | |
1250 | usb_fill_bulk_urb(priv->rx_urb, priv->udev, priv->rx_pipe, | |
1251 | skb_put(skb, size), size, at76_rx_callback, priv); | |
1252 | ret = usb_submit_urb(priv->rx_urb, GFP_ATOMIC); | |
1253 | if (ret < 0) { | |
1254 | if (ret == -ENODEV) | |
1255 | at76_dbg(DBG_DEVSTART, | |
1256 | "usb_submit_urb returned -ENODEV"); | |
1257 | else | |
1258 | printk(KERN_ERR "%s: rx, usb_submit_urb failed: %d\n", | |
1259 | wiphy_name(priv->hw->wiphy), ret); | |
1260 | } | |
1261 | ||
1262 | exit: | |
1263 | if (ret < 0 && ret != -ENODEV) | |
1264 | printk(KERN_ERR "%s: cannot submit rx urb - please unload the " | |
1265 | "driver and/or power cycle the device\n", | |
1266 | wiphy_name(priv->hw->wiphy)); | |
1267 | ||
1268 | return ret; | |
1269 | } | |
1270 | ||
1271 | /* Download external firmware */ | |
1272 | static int at76_load_external_fw(struct usb_device *udev, struct fwentry *fwe) | |
1273 | { | |
1274 | int ret; | |
1275 | int op_mode; | |
1276 | int blockno = 0; | |
1277 | int bsize; | |
1278 | u8 *block; | |
1279 | u8 *buf = fwe->extfw; | |
1280 | int size = fwe->extfw_size; | |
1281 | ||
1282 | if (!buf || !size) | |
1283 | return -ENOENT; | |
1284 | ||
1285 | op_mode = at76_get_op_mode(udev); | |
1286 | at76_dbg(DBG_DEVSTART, "opmode %d", op_mode); | |
1287 | ||
1288 | if (op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) { | |
1289 | dev_printk(KERN_ERR, &udev->dev, "unexpected opmode %d\n", | |
1290 | op_mode); | |
1291 | return -EINVAL; | |
1292 | } | |
1293 | ||
1294 | block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL); | |
1295 | if (!block) | |
1296 | return -ENOMEM; | |
1297 | ||
1298 | at76_dbg(DBG_DEVSTART, "downloading external firmware"); | |
1299 | ||
1300 | /* for fw >= 0.100, the device needs an extra empty block */ | |
1301 | do { | |
1302 | bsize = min_t(int, size, FW_BLOCK_SIZE); | |
1303 | memcpy(block, buf, bsize); | |
1304 | at76_dbg(DBG_DEVSTART, | |
1305 | "ext fw, size left = %5d, bsize = %4d, blockno = %2d", | |
1306 | size, bsize, blockno); | |
1307 | ret = at76_load_ext_fw_block(udev, blockno, block, bsize); | |
1308 | if (ret != bsize) { | |
1309 | dev_printk(KERN_ERR, &udev->dev, | |
1310 | "loading %dth firmware block failed: %d\n", | |
1311 | blockno, ret); | |
1312 | goto exit; | |
1313 | } | |
1314 | buf += bsize; | |
1315 | size -= bsize; | |
1316 | blockno++; | |
1317 | } while (bsize > 0); | |
1318 | ||
1319 | if (at76_is_505a(fwe->board_type)) { | |
1320 | at76_dbg(DBG_DEVSTART, "200 ms delay for 505a"); | |
1321 | schedule_timeout_interruptible(HZ / 5 + 1); | |
1322 | } | |
1323 | ||
1324 | exit: | |
1325 | kfree(block); | |
1326 | if (ret < 0) | |
1327 | dev_printk(KERN_ERR, &udev->dev, | |
1328 | "downloading external firmware failed: %d\n", ret); | |
1329 | return ret; | |
1330 | } | |
1331 | ||
1332 | /* Download internal firmware */ | |
1333 | static int at76_load_internal_fw(struct usb_device *udev, struct fwentry *fwe) | |
1334 | { | |
1335 | int ret; | |
1336 | int need_remap = !at76_is_505a(fwe->board_type); | |
1337 | ||
1338 | ret = at76_usbdfu_download(udev, fwe->intfw, fwe->intfw_size, | |
1339 | need_remap ? 0 : 2 * HZ); | |
1340 | ||
1341 | if (ret < 0) { | |
1342 | dev_printk(KERN_ERR, &udev->dev, | |
1343 | "downloading internal fw failed with %d\n", ret); | |
1344 | goto exit; | |
1345 | } | |
1346 | ||
1347 | at76_dbg(DBG_DEVSTART, "sending REMAP"); | |
1348 | ||
1349 | /* no REMAP for 505A (see SF driver) */ | |
1350 | if (need_remap) { | |
1351 | ret = at76_remap(udev); | |
1352 | if (ret < 0) { | |
1353 | dev_printk(KERN_ERR, &udev->dev, | |
1354 | "sending REMAP failed with %d\n", ret); | |
1355 | goto exit; | |
1356 | } | |
1357 | } | |
1358 | ||
1359 | at76_dbg(DBG_DEVSTART, "sleeping for 2 seconds"); | |
1360 | schedule_timeout_interruptible(2 * HZ + 1); | |
1361 | usb_reset_device(udev); | |
1362 | ||
1363 | exit: | |
1364 | return ret; | |
1365 | } | |
1366 | ||
1367 | static int at76_startup_device(struct at76_priv *priv) | |
1368 | { | |
1369 | struct at76_card_config *ccfg = &priv->card_config; | |
1370 | int ret; | |
1371 | ||
1372 | at76_dbg(DBG_PARAMS, | |
1373 | "%s param: ssid %.*s (%s) mode %s ch %d wep %s key %d " | |
1374 | "keylen %d", wiphy_name(priv->hw->wiphy), priv->essid_size, | |
1375 | priv->essid, hex2str(priv->essid, IW_ESSID_MAX_SIZE), | |
1376 | priv->iw_mode == IW_MODE_ADHOC ? "adhoc" : "infra", | |
1377 | priv->channel, priv->wep_enabled ? "enabled" : "disabled", | |
1378 | priv->wep_key_id, priv->wep_keys_len[priv->wep_key_id]); | |
1379 | at76_dbg(DBG_PARAMS, | |
1380 | "%s param: preamble %s rts %d retry %d frag %d " | |
1381 | "txrate %s auth_mode %d", wiphy_name(priv->hw->wiphy), | |
1382 | preambles[priv->preamble_type], priv->rts_threshold, | |
1383 | priv->short_retry_limit, priv->frag_threshold, | |
1384 | priv->txrate == TX_RATE_1MBIT ? "1MBit" : priv->txrate == | |
1385 | TX_RATE_2MBIT ? "2MBit" : priv->txrate == | |
1386 | TX_RATE_5_5MBIT ? "5.5MBit" : priv->txrate == | |
1387 | TX_RATE_11MBIT ? "11MBit" : priv->txrate == | |
1388 | TX_RATE_AUTO ? "auto" : "<invalid>", priv->auth_mode); | |
1389 | at76_dbg(DBG_PARAMS, | |
1390 | "%s param: pm_mode %d pm_period %d auth_mode %s " | |
1391 | "scan_times %d %d scan_mode %s", | |
1392 | wiphy_name(priv->hw->wiphy), priv->pm_mode, priv->pm_period, | |
1393 | priv->auth_mode == WLAN_AUTH_OPEN ? "open" : "shared_secret", | |
1394 | priv->scan_min_time, priv->scan_max_time, | |
1395 | priv->scan_mode == SCAN_TYPE_ACTIVE ? "active" : "passive"); | |
1396 | ||
1397 | memset(ccfg, 0, sizeof(struct at76_card_config)); | |
1398 | ccfg->promiscuous_mode = 0; | |
1399 | ccfg->short_retry_limit = priv->short_retry_limit; | |
1400 | ||
1401 | if (priv->wep_enabled) { | |
1402 | if (priv->wep_keys_len[priv->wep_key_id] > WEP_SMALL_KEY_LEN) | |
1403 | ccfg->encryption_type = 2; | |
1404 | else | |
1405 | ccfg->encryption_type = 1; | |
1406 | ||
1407 | /* jal: always exclude unencrypted if WEP is active */ | |
1408 | ccfg->exclude_unencrypted = 1; | |
1409 | } else { | |
1410 | ccfg->exclude_unencrypted = 0; | |
1411 | ccfg->encryption_type = 0; | |
1412 | } | |
1413 | ||
1414 | ccfg->rts_threshold = cpu_to_le16(priv->rts_threshold); | |
1415 | ccfg->fragmentation_threshold = cpu_to_le16(priv->frag_threshold); | |
1416 | ||
1417 | memcpy(ccfg->basic_rate_set, hw_rates, 4); | |
1418 | /* jal: really needed, we do a set_mib for autorate later ??? */ | |
1419 | ccfg->auto_rate_fallback = (priv->txrate == TX_RATE_AUTO ? 1 : 0); | |
1420 | ccfg->channel = priv->channel; | |
1421 | ccfg->privacy_invoked = priv->wep_enabled; | |
1422 | memcpy(ccfg->current_ssid, priv->essid, IW_ESSID_MAX_SIZE); | |
1423 | ccfg->ssid_len = priv->essid_size; | |
1424 | ||
1425 | ccfg->wep_default_key_id = priv->wep_key_id; | |
1426 | memcpy(ccfg->wep_default_key_value, priv->wep_keys, | |
1427 | sizeof(priv->wep_keys)); | |
1428 | ||
1429 | ccfg->short_preamble = priv->preamble_type; | |
1430 | ccfg->beacon_period = cpu_to_le16(priv->beacon_period); | |
1431 | ||
1432 | ret = at76_set_card_command(priv->udev, CMD_STARTUP, &priv->card_config, | |
1433 | sizeof(struct at76_card_config)); | |
1434 | if (ret < 0) { | |
1435 | printk(KERN_ERR "%s: at76_set_card_command failed: %d\n", | |
1436 | wiphy_name(priv->hw->wiphy), ret); | |
1437 | return ret; | |
1438 | } | |
1439 | ||
1440 | at76_wait_completion(priv, CMD_STARTUP); | |
1441 | ||
1442 | /* remove BSSID from previous run */ | |
1443 | memset(priv->bssid, 0, ETH_ALEN); | |
1444 | ||
1445 | if (at76_set_radio(priv, 1) == 1) | |
1446 | at76_wait_completion(priv, CMD_RADIO_ON); | |
1447 | ||
1448 | ret = at76_set_preamble(priv, priv->preamble_type); | |
1449 | if (ret < 0) | |
1450 | return ret; | |
1451 | ||
1452 | ret = at76_set_frag(priv, priv->frag_threshold); | |
1453 | if (ret < 0) | |
1454 | return ret; | |
1455 | ||
1456 | ret = at76_set_rts(priv, priv->rts_threshold); | |
1457 | if (ret < 0) | |
1458 | return ret; | |
1459 | ||
1460 | ret = at76_set_autorate_fallback(priv, | |
1461 | priv->txrate == TX_RATE_AUTO ? 1 : 0); | |
1462 | if (ret < 0) | |
1463 | return ret; | |
1464 | ||
1465 | ret = at76_set_pm_mode(priv); | |
1466 | if (ret < 0) | |
1467 | return ret; | |
1468 | ||
1469 | if (at76_debug & DBG_MIB) { | |
1470 | at76_dump_mib_mac(priv); | |
1471 | at76_dump_mib_mac_addr(priv); | |
1472 | at76_dump_mib_mac_mgmt(priv); | |
1473 | at76_dump_mib_mac_wep(priv); | |
1474 | at76_dump_mib_mdomain(priv); | |
1475 | at76_dump_mib_phy(priv); | |
1476 | at76_dump_mib_local(priv); | |
1477 | } | |
1478 | ||
1479 | return 0; | |
1480 | } | |
1481 | ||
1482 | /* Enable or disable promiscuous mode */ | |
1483 | static void at76_work_set_promisc(struct work_struct *work) | |
1484 | { | |
1485 | struct at76_priv *priv = container_of(work, struct at76_priv, | |
1486 | work_set_promisc); | |
1487 | int ret = 0; | |
1488 | ||
1489 | mutex_lock(&priv->mtx); | |
1490 | ||
1491 | priv->mib_buf.type = MIB_LOCAL; | |
1492 | priv->mib_buf.size = 1; | |
1493 | priv->mib_buf.index = offsetof(struct mib_local, promiscuous_mode); | |
1494 | priv->mib_buf.data.byte = priv->promisc ? 1 : 0; | |
1495 | ||
1496 | ret = at76_set_mib(priv, &priv->mib_buf); | |
1497 | if (ret < 0) | |
1498 | printk(KERN_ERR "%s: set_mib (promiscuous_mode) failed: %d\n", | |
1499 | wiphy_name(priv->hw->wiphy), ret); | |
1500 | ||
1501 | mutex_unlock(&priv->mtx); | |
1502 | } | |
1503 | ||
1504 | /* Submit Rx urb back to the device */ | |
1505 | static void at76_work_submit_rx(struct work_struct *work) | |
1506 | { | |
1507 | struct at76_priv *priv = container_of(work, struct at76_priv, | |
1508 | work_submit_rx); | |
1509 | ||
1510 | mutex_lock(&priv->mtx); | |
1511 | at76_submit_rx_urb(priv); | |
1512 | mutex_unlock(&priv->mtx); | |
1513 | } | |
1514 | ||
1515 | static void at76_rx_tasklet(unsigned long param) | |
1516 | { | |
1517 | struct urb *urb = (struct urb *)param; | |
1518 | struct at76_priv *priv = urb->context; | |
1519 | struct at76_rx_buffer *buf; | |
1520 | struct ieee80211_rx_status rx_status = { 0 }; | |
1521 | ||
1522 | if (priv->device_unplugged) { | |
1523 | at76_dbg(DBG_DEVSTART, "device unplugged"); | |
1524 | if (urb) | |
1525 | at76_dbg(DBG_DEVSTART, "urb status %d", urb->status); | |
1526 | return; | |
1527 | } | |
1528 | ||
1529 | if (!priv->rx_skb || !priv->rx_skb->data) | |
1530 | return; | |
1531 | ||
1532 | buf = (struct at76_rx_buffer *)priv->rx_skb->data; | |
1533 | ||
1534 | if (urb->status != 0) { | |
1535 | if (urb->status != -ENOENT && urb->status != -ECONNRESET) | |
1536 | at76_dbg(DBG_URB, | |
1537 | "%s %s: - nonzero Rx bulk status received: %d", | |
1538 | __func__, wiphy_name(priv->hw->wiphy), | |
1539 | urb->status); | |
1540 | return; | |
1541 | } | |
1542 | ||
1543 | at76_dbg(DBG_RX_ATMEL_HDR, | |
1544 | "%s: rx frame: rate %d rssi %d noise %d link %d", | |
1545 | wiphy_name(priv->hw->wiphy), buf->rx_rate, buf->rssi, | |
1546 | buf->noise_level, buf->link_quality); | |
1547 | ||
1548 | skb_pull(priv->rx_skb, AT76_RX_HDRLEN); | |
1549 | skb_trim(priv->rx_skb, le16_to_cpu(buf->wlength)); | |
1550 | at76_dbg_dump(DBG_RX_DATA, priv->rx_skb->data, | |
1551 | priv->rx_skb->len, "RX: len=%d", priv->rx_skb->len); | |
1552 | ||
1553 | rx_status.signal = buf->rssi; | |
1554 | rx_status.flag |= RX_FLAG_DECRYPTED; | |
1555 | rx_status.flag |= RX_FLAG_IV_STRIPPED; | |
1556 | ||
1557 | at76_dbg(DBG_MAC80211, "calling ieee80211_rx_irqsafe(): %d/%d", | |
1558 | priv->rx_skb->len, priv->rx_skb->data_len); | |
1559 | ieee80211_rx_irqsafe(priv->hw, priv->rx_skb, &rx_status); | |
1560 | ||
1561 | /* Use a new skb for the next receive */ | |
1562 | priv->rx_skb = NULL; | |
1563 | ||
1564 | at76_submit_rx_urb(priv); | |
1565 | } | |
1566 | ||
1567 | /* Load firmware into kernel memory and parse it */ | |
1568 | static struct fwentry *at76_load_firmware(struct usb_device *udev, | |
1569 | enum board_type board_type) | |
1570 | { | |
1571 | int ret; | |
1572 | char *str; | |
1573 | struct at76_fw_header *fwh; | |
1574 | struct fwentry *fwe = &firmwares[board_type]; | |
1575 | ||
1576 | mutex_lock(&fw_mutex); | |
1577 | ||
1578 | if (fwe->loaded) { | |
1579 | at76_dbg(DBG_FW, "re-using previously loaded fw"); | |
1580 | goto exit; | |
1581 | } | |
1582 | ||
1583 | at76_dbg(DBG_FW, "downloading firmware %s", fwe->fwname); | |
1584 | ret = request_firmware(&fwe->fw, fwe->fwname, &udev->dev); | |
1585 | if (ret < 0) { | |
1586 | dev_printk(KERN_ERR, &udev->dev, "firmware %s not found!\n", | |
1587 | fwe->fwname); | |
1588 | dev_printk(KERN_ERR, &udev->dev, | |
1589 | "you may need to download the firmware from " | |
1590 | "http://developer.berlios.de/projects/at76c503a/\n"); | |
1591 | goto exit; | |
1592 | } | |
1593 | ||
1594 | at76_dbg(DBG_FW, "got it."); | |
1595 | fwh = (struct at76_fw_header *)(fwe->fw->data); | |
1596 | ||
1597 | if (fwe->fw->size <= sizeof(*fwh)) { | |
1598 | dev_printk(KERN_ERR, &udev->dev, | |
1599 | "firmware is too short (0x%zx)\n", fwe->fw->size); | |
1600 | goto exit; | |
1601 | } | |
1602 | ||
1603 | /* CRC currently not checked */ | |
1604 | fwe->board_type = le32_to_cpu(fwh->board_type); | |
1605 | if (fwe->board_type != board_type) { | |
1606 | dev_printk(KERN_ERR, &udev->dev, | |
1607 | "board type mismatch, requested %u, got %u\n", | |
1608 | board_type, fwe->board_type); | |
1609 | goto exit; | |
1610 | } | |
1611 | ||
1612 | fwe->fw_version.major = fwh->major; | |
1613 | fwe->fw_version.minor = fwh->minor; | |
1614 | fwe->fw_version.patch = fwh->patch; | |
1615 | fwe->fw_version.build = fwh->build; | |
1616 | ||
1617 | str = (char *)fwh + le32_to_cpu(fwh->str_offset); | |
1618 | fwe->intfw = (u8 *)fwh + le32_to_cpu(fwh->int_fw_offset); | |
1619 | fwe->intfw_size = le32_to_cpu(fwh->int_fw_len); | |
1620 | fwe->extfw = (u8 *)fwh + le32_to_cpu(fwh->ext_fw_offset); | |
1621 | fwe->extfw_size = le32_to_cpu(fwh->ext_fw_len); | |
1622 | ||
1623 | fwe->loaded = 1; | |
1624 | ||
1625 | dev_printk(KERN_DEBUG, &udev->dev, | |
1626 | "using firmware %s (version %d.%d.%d-%d)\n", | |
1627 | fwe->fwname, fwh->major, fwh->minor, fwh->patch, fwh->build); | |
1628 | ||
1629 | at76_dbg(DBG_DEVSTART, "board %u, int %d:%d, ext %d:%d", board_type, | |
1630 | le32_to_cpu(fwh->int_fw_offset), le32_to_cpu(fwh->int_fw_len), | |
1631 | le32_to_cpu(fwh->ext_fw_offset), le32_to_cpu(fwh->ext_fw_len)); | |
1632 | at76_dbg(DBG_DEVSTART, "firmware id %s", str); | |
1633 | ||
1634 | exit: | |
1635 | mutex_unlock(&fw_mutex); | |
1636 | ||
1637 | if (fwe->loaded) | |
1638 | return fwe; | |
1639 | else | |
1640 | return NULL; | |
1641 | } | |
1642 | ||
1643 | static void at76_mac80211_tx_callback(struct urb *urb) | |
1644 | { | |
1645 | struct at76_priv *priv = urb->context; | |
1646 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(priv->tx_skb); | |
1647 | ||
1648 | at76_dbg(DBG_MAC80211, "%s()", __func__); | |
1649 | ||
1650 | switch (urb->status) { | |
1651 | case 0: | |
1652 | /* success */ | |
1653 | info->flags |= IEEE80211_TX_STAT_ACK; | |
1654 | break; | |
1655 | case -ENOENT: | |
1656 | case -ECONNRESET: | |
1657 | /* fail, urb has been unlinked */ | |
1658 | /* FIXME: add error message */ | |
1659 | break; | |
1660 | default: | |
1661 | at76_dbg(DBG_URB, "%s - nonzero tx status received: %d", | |
1662 | __func__, urb->status); | |
1663 | break; | |
1664 | } | |
1665 | ||
1666 | memset(&info->status, 0, sizeof(info->status)); | |
1667 | ||
1668 | ieee80211_tx_status_irqsafe(priv->hw, priv->tx_skb); | |
1669 | ||
1670 | priv->tx_skb = NULL; | |
1671 | ||
1672 | ieee80211_wake_queues(priv->hw); | |
1673 | } | |
1674 | ||
1675 | static int at76_mac80211_tx(struct ieee80211_hw *hw, struct sk_buff *skb) | |
1676 | { | |
1677 | struct at76_priv *priv = hw->priv; | |
1678 | struct at76_tx_buffer *tx_buffer = priv->bulk_out_buffer; | |
1679 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
1680 | int padding, submit_len, ret; | |
1681 | ||
1682 | at76_dbg(DBG_MAC80211, "%s()", __func__); | |
1683 | ||
1684 | if (priv->tx_urb->status == -EINPROGRESS) { | |
1685 | printk(KERN_ERR "%s: %s called while tx urb is pending\n", | |
1686 | wiphy_name(priv->hw->wiphy), __func__); | |
1687 | return NETDEV_TX_BUSY; | |
1688 | } | |
1689 | ||
1690 | ieee80211_stop_queues(hw); | |
1691 | ||
1692 | at76_ledtrig_tx_activity(); /* tell ledtrigger we send a packet */ | |
1693 | ||
1694 | WARN_ON(priv->tx_skb != NULL); | |
1695 | ||
1696 | priv->tx_skb = skb; | |
1697 | padding = at76_calc_padding(skb->len); | |
1698 | submit_len = AT76_TX_HDRLEN + skb->len + padding; | |
1699 | ||
1700 | /* setup 'Atmel' header */ | |
1701 | memset(tx_buffer, 0, sizeof(*tx_buffer)); | |
1702 | tx_buffer->padding = padding; | |
1703 | tx_buffer->wlength = cpu_to_le16(skb->len); | |
1704 | tx_buffer->tx_rate = ieee80211_get_tx_rate(hw, info)->hw_value; | |
1705 | memset(tx_buffer->reserved, 0, sizeof(tx_buffer->reserved)); | |
1706 | memcpy(tx_buffer->packet, skb->data, skb->len); | |
1707 | ||
1708 | at76_dbg(DBG_TX_DATA, "%s tx: wlen 0x%x pad 0x%x rate %d hdr", | |
1709 | wiphy_name(priv->hw->wiphy), le16_to_cpu(tx_buffer->wlength), | |
1710 | tx_buffer->padding, tx_buffer->tx_rate); | |
1711 | ||
1712 | /* send stuff */ | |
1713 | at76_dbg_dump(DBG_TX_DATA_CONTENT, tx_buffer, submit_len, | |
1714 | "%s(): tx_buffer %d bytes:", __func__, submit_len); | |
1715 | usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, tx_buffer, | |
1716 | submit_len, at76_mac80211_tx_callback, priv); | |
1717 | ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC); | |
1718 | if (ret) { | |
1719 | printk(KERN_ERR "%s: error in tx submit urb: %d\n", | |
1720 | wiphy_name(priv->hw->wiphy), ret); | |
1721 | if (ret == -EINVAL) | |
1722 | printk(KERN_ERR | |
1723 | "%s: -EINVAL: tx urb %p hcpriv %p complete %p\n", | |
1724 | wiphy_name(priv->hw->wiphy), priv->tx_urb, | |
1725 | priv->tx_urb->hcpriv, priv->tx_urb->complete); | |
1726 | } | |
1727 | ||
1728 | return 0; | |
1729 | } | |
1730 | ||
1731 | static int at76_mac80211_start(struct ieee80211_hw *hw) | |
1732 | { | |
1733 | struct at76_priv *priv = hw->priv; | |
1734 | int ret; | |
1735 | ||
1736 | at76_dbg(DBG_MAC80211, "%s()", __func__); | |
1737 | ||
1738 | mutex_lock(&priv->mtx); | |
1739 | ||
1740 | ret = at76_submit_rx_urb(priv); | |
1741 | if (ret < 0) { | |
1742 | printk(KERN_ERR "%s: open: submit_rx_urb failed: %d\n", | |
1743 | wiphy_name(priv->hw->wiphy), ret); | |
1744 | goto error; | |
1745 | } | |
1746 | ||
1747 | at76_startup_device(priv); | |
1748 | ||
1749 | at76_start_monitor(priv); | |
1750 | ||
1751 | error: | |
1752 | mutex_unlock(&priv->mtx); | |
1753 | ||
1754 | return 0; | |
1755 | } | |
1756 | ||
1757 | static void at76_mac80211_stop(struct ieee80211_hw *hw) | |
1758 | { | |
1759 | struct at76_priv *priv = hw->priv; | |
1760 | ||
1761 | at76_dbg(DBG_MAC80211, "%s()", __func__); | |
1762 | ||
1763 | mutex_lock(&priv->mtx); | |
1764 | ||
1765 | if (!priv->device_unplugged) { | |
1766 | /* We are called by "ifconfig ethX down", not because the | |
1767 | * device is not available anymore. */ | |
1768 | at76_set_radio(priv, 0); | |
1769 | ||
1770 | /* We unlink rx_urb because at76_open() re-submits it. | |
1771 | * If unplugged, at76_delete_device() takes care of it. */ | |
1772 | usb_kill_urb(priv->rx_urb); | |
1773 | } | |
1774 | ||
1775 | mutex_unlock(&priv->mtx); | |
1776 | } | |
1777 | ||
1778 | static int at76_add_interface(struct ieee80211_hw *hw, | |
1779 | struct ieee80211_if_init_conf *conf) | |
1780 | { | |
1781 | struct at76_priv *priv = hw->priv; | |
1782 | int ret = 0; | |
1783 | ||
1784 | at76_dbg(DBG_MAC80211, "%s()", __func__); | |
1785 | ||
1786 | mutex_lock(&priv->mtx); | |
1787 | ||
1788 | switch (conf->type) { | |
1789 | case NL80211_IFTYPE_STATION: | |
1790 | priv->iw_mode = IW_MODE_INFRA; | |
1791 | break; | |
1792 | default: | |
1793 | ret = -EOPNOTSUPP; | |
1794 | goto exit; | |
1795 | } | |
1796 | ||
1797 | exit: | |
1798 | mutex_unlock(&priv->mtx); | |
1799 | ||
1800 | return ret; | |
1801 | } | |
1802 | ||
1803 | static void at76_remove_interface(struct ieee80211_hw *hw, | |
1804 | struct ieee80211_if_init_conf *conf) | |
1805 | { | |
1806 | at76_dbg(DBG_MAC80211, "%s()", __func__); | |
1807 | } | |
1808 | ||
1809 | static int at76_join(struct at76_priv *priv) | |
1810 | { | |
1811 | struct at76_req_join join; | |
1812 | int ret; | |
1813 | ||
1814 | memset(&join, 0, sizeof(struct at76_req_join)); | |
1815 | memcpy(join.essid, priv->essid, priv->essid_size); | |
1816 | join.essid_size = priv->essid_size; | |
1817 | memcpy(join.bssid, priv->bssid, ETH_ALEN); | |
1818 | join.bss_type = INFRASTRUCTURE_MODE; | |
1819 | join.channel = priv->channel; | |
1820 | join.timeout = cpu_to_le16(2000); | |
1821 | ||
1822 | at76_dbg(DBG_MAC80211, "%s: sending CMD_JOIN", __func__); | |
1823 | ret = at76_set_card_command(priv->udev, CMD_JOIN, &join, | |
1824 | sizeof(struct at76_req_join)); | |
1825 | ||
1826 | if (ret < 0) { | |
1827 | printk(KERN_ERR "%s: at76_set_card_command failed: %d\n", | |
1828 | wiphy_name(priv->hw->wiphy), ret); | |
1829 | return 0; | |
1830 | } | |
1831 | ||
1832 | ret = at76_wait_completion(priv, CMD_JOIN); | |
1833 | at76_dbg(DBG_MAC80211, "%s: CMD_JOIN returned: 0x%02x", __func__, ret); | |
1834 | if (ret != CMD_STATUS_COMPLETE) { | |
1835 | printk(KERN_ERR "%s: at76_wait_completion failed: %d\n", | |
1836 | wiphy_name(priv->hw->wiphy), ret); | |
1837 | return 0; | |
1838 | } | |
1839 | ||
1840 | at76_set_pm_mode(priv); | |
1841 | ||
1842 | return 0; | |
1843 | } | |
1844 | ||
1845 | static void at76_dwork_hw_scan(struct work_struct *work) | |
1846 | { | |
1847 | struct at76_priv *priv = container_of(work, struct at76_priv, | |
1848 | dwork_hw_scan.work); | |
1849 | int ret; | |
1850 | ||
1851 | mutex_lock(&priv->mtx); | |
1852 | ||
1853 | ret = at76_get_cmd_status(priv->udev, CMD_SCAN); | |
1854 | at76_dbg(DBG_MAC80211, "%s: CMD_SCAN status 0x%02x", __func__, ret); | |
1855 | ||
1856 | /* FIXME: add maximum time for scan to complete */ | |
1857 | ||
1858 | if (ret != CMD_STATUS_COMPLETE) { | |
1859 | queue_delayed_work(priv->hw->workqueue, &priv->dwork_hw_scan, | |
1860 | SCAN_POLL_INTERVAL); | |
1861 | goto exit; | |
1862 | } | |
1863 | ||
1864 | ieee80211_scan_completed(priv->hw); | |
1865 | ||
1866 | if (is_valid_ether_addr(priv->bssid)) | |
1867 | at76_join(priv); | |
1868 | ||
1869 | ieee80211_wake_queues(priv->hw); | |
1870 | ||
1871 | exit: | |
1872 | mutex_unlock(&priv->mtx); | |
1873 | } | |
1874 | ||
1875 | static int at76_hw_scan(struct ieee80211_hw *hw, u8 *ssid, size_t len) | |
1876 | { | |
1877 | struct at76_priv *priv = hw->priv; | |
1878 | struct at76_req_scan scan; | |
1879 | int ret; | |
1880 | ||
1881 | at76_dbg(DBG_MAC80211, "%s():", __func__); | |
1882 | at76_dbg_dump(DBG_MAC80211, ssid, len, "ssid %zd bytes:", len); | |
1883 | ||
1884 | mutex_lock(&priv->mtx); | |
1885 | ||
1886 | ieee80211_stop_queues(hw); | |
1887 | ||
1888 | memset(&scan, 0, sizeof(struct at76_req_scan)); | |
1889 | memset(scan.bssid, 0xFF, ETH_ALEN); | |
1890 | scan.scan_type = SCAN_TYPE_ACTIVE; | |
1891 | if (priv->essid_size > 0) { | |
1892 | memcpy(scan.essid, ssid, len); | |
1893 | scan.essid_size = len; | |
1894 | } | |
1895 | scan.min_channel_time = cpu_to_le16(priv->scan_min_time); | |
1896 | scan.max_channel_time = cpu_to_le16(priv->scan_max_time); | |
1897 | scan.probe_delay = cpu_to_le16(priv->scan_min_time * 1000); | |
1898 | scan.international_scan = 0; | |
1899 | ||
1900 | at76_dbg(DBG_MAC80211, "%s: sending CMD_SCAN", __func__); | |
1901 | ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan)); | |
1902 | ||
1903 | if (ret < 0) { | |
1904 | err("CMD_SCAN failed: %d", ret); | |
1905 | goto exit; | |
1906 | } | |
1907 | ||
1908 | queue_delayed_work(priv->hw->workqueue, &priv->dwork_hw_scan, | |
1909 | SCAN_POLL_INTERVAL); | |
1910 | ||
1911 | exit: | |
1912 | mutex_unlock(&priv->mtx); | |
1913 | ||
1914 | return 0; | |
1915 | } | |
1916 | ||
1917 | static int at76_config(struct ieee80211_hw *hw, u32 changed) | |
1918 | { | |
1919 | struct at76_priv *priv = hw->priv; | |
1920 | ||
1921 | at76_dbg(DBG_MAC80211, "%s(): channel %d radio %d", | |
1922 | __func__, hw->conf.channel->hw_value, | |
1923 | hw->conf.radio_enabled); | |
1924 | at76_dbg_dump(DBG_MAC80211, priv->bssid, ETH_ALEN, "bssid:"); | |
1925 | ||
1926 | mutex_lock(&priv->mtx); | |
1927 | ||
1928 | priv->channel = hw->conf.channel->hw_value; | |
1929 | ||
1930 | if (is_valid_ether_addr(priv->bssid)) | |
1931 | at76_join(priv); | |
1932 | else | |
1933 | at76_start_monitor(priv); | |
1934 | ||
1935 | mutex_unlock(&priv->mtx); | |
1936 | ||
1937 | return 0; | |
1938 | } | |
1939 | ||
1940 | static int at76_config_interface(struct ieee80211_hw *hw, | |
1941 | struct ieee80211_vif *vif, | |
1942 | struct ieee80211_if_conf *conf) | |
1943 | { | |
1944 | struct at76_priv *priv = hw->priv; | |
1945 | ||
1946 | at76_dbg(DBG_MAC80211, "%s():", __func__); | |
1947 | at76_dbg_dump(DBG_MAC80211, conf->bssid, ETH_ALEN, "bssid:"); | |
1948 | ||
1949 | mutex_lock(&priv->mtx); | |
1950 | ||
1951 | memcpy(priv->bssid, conf->bssid, ETH_ALEN); | |
1952 | ||
1953 | if (is_valid_ether_addr(priv->bssid)) | |
1954 | /* mac80211 is joining a bss */ | |
1955 | at76_join(priv); | |
1956 | ||
1957 | mutex_unlock(&priv->mtx); | |
1958 | ||
1959 | return 0; | |
1960 | } | |
1961 | ||
1962 | /* must be atomic */ | |
1963 | static void at76_configure_filter(struct ieee80211_hw *hw, | |
1964 | unsigned int changed_flags, | |
1965 | unsigned int *total_flags, int mc_count, | |
1966 | struct dev_addr_list *mc_list) | |
1967 | { | |
1968 | struct at76_priv *priv = hw->priv; | |
1969 | int flags; | |
1970 | ||
1971 | at76_dbg(DBG_MAC80211, "%s(): changed_flags=0x%08x " | |
1972 | "total_flags=0x%08x mc_count=%d", | |
1973 | __func__, changed_flags, *total_flags, mc_count); | |
1974 | ||
1975 | flags = changed_flags & AT76_SUPPORTED_FILTERS; | |
1976 | *total_flags = AT76_SUPPORTED_FILTERS; | |
1977 | ||
1978 | /* FIXME: access to priv->promisc should be protected with | |
1979 | * priv->mtx, but it's impossible because this function needs to be | |
1980 | * atomic */ | |
1981 | ||
1982 | if (flags && !priv->promisc) { | |
1983 | /* mac80211 wants us to enable promiscuous mode */ | |
1984 | priv->promisc = 1; | |
1985 | } else if (!flags && priv->promisc) { | |
1986 | /* we need to disable promiscuous mode */ | |
1987 | priv->promisc = 0; | |
1988 | } else | |
1989 | return; | |
1990 | ||
1991 | queue_work(hw->workqueue, &priv->work_set_promisc); | |
1992 | } | |
1993 | ||
1994 | static int at76_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, | |
1995 | struct ieee80211_vif *vif, struct ieee80211_sta *sta, | |
1996 | struct ieee80211_key_conf *key) | |
1997 | { | |
1998 | struct at76_priv *priv = hw->priv; | |
1999 | ||
2000 | int i; | |
2001 | ||
2002 | at76_dbg(DBG_MAC80211, "%s(): cmd %d key->alg %d key->keyidx %d " | |
2003 | "key->keylen %d", | |
2004 | __func__, cmd, key->alg, key->keyidx, key->keylen); | |
2005 | ||
2006 | if (key->alg != ALG_WEP) | |
2007 | return -EOPNOTSUPP; | |
2008 | ||
2009 | key->hw_key_idx = key->keyidx; | |
2010 | ||
2011 | mutex_lock(&priv->mtx); | |
2012 | ||
2013 | switch (cmd) { | |
2014 | case SET_KEY: | |
2015 | memcpy(priv->wep_keys[key->keyidx], key->key, key->keylen); | |
2016 | priv->wep_keys_len[key->keyidx] = key->keylen; | |
2017 | ||
2018 | /* FIXME: find out how to do this properly */ | |
2019 | priv->wep_key_id = key->keyidx; | |
2020 | ||
2021 | break; | |
2022 | case DISABLE_KEY: | |
2023 | default: | |
2024 | priv->wep_keys_len[key->keyidx] = 0; | |
2025 | break; | |
2026 | } | |
2027 | ||
2028 | priv->wep_enabled = 0; | |
2029 | ||
2030 | for (i = 0; i < WEP_KEYS; i++) { | |
2031 | if (priv->wep_keys_len[i] != 0) | |
2032 | priv->wep_enabled = 1; | |
2033 | } | |
2034 | ||
2035 | at76_startup_device(priv); | |
2036 | ||
2037 | mutex_unlock(&priv->mtx); | |
2038 | ||
2039 | return 0; | |
2040 | } | |
2041 | ||
2042 | static const struct ieee80211_ops at76_ops = { | |
2043 | .tx = at76_mac80211_tx, | |
2044 | .add_interface = at76_add_interface, | |
2045 | .remove_interface = at76_remove_interface, | |
2046 | .config = at76_config, | |
2047 | .config_interface = at76_config_interface, | |
2048 | .configure_filter = at76_configure_filter, | |
2049 | .start = at76_mac80211_start, | |
2050 | .stop = at76_mac80211_stop, | |
2051 | .hw_scan = at76_hw_scan, | |
2052 | .set_key = at76_set_key, | |
2053 | }; | |
2054 | ||
2055 | /* Allocate network device and initialize private data */ | |
2056 | static struct at76_priv *at76_alloc_new_device(struct usb_device *udev) | |
2057 | { | |
2058 | struct ieee80211_hw *hw; | |
2059 | struct at76_priv *priv; | |
2060 | ||
2061 | hw = ieee80211_alloc_hw(sizeof(struct at76_priv), &at76_ops); | |
2062 | if (!hw) { | |
2063 | printk(KERN_ERR DRIVER_NAME ": could not register" | |
2064 | " ieee80211_hw\n"); | |
2065 | return NULL; | |
2066 | } | |
2067 | ||
2068 | priv = hw->priv; | |
2069 | priv->hw = hw; | |
2070 | ||
2071 | priv->udev = udev; | |
2072 | ||
2073 | mutex_init(&priv->mtx); | |
2074 | INIT_WORK(&priv->work_set_promisc, at76_work_set_promisc); | |
2075 | INIT_WORK(&priv->work_submit_rx, at76_work_submit_rx); | |
2076 | INIT_DELAYED_WORK(&priv->dwork_hw_scan, at76_dwork_hw_scan); | |
2077 | ||
2078 | priv->rx_tasklet.func = at76_rx_tasklet; | |
2079 | priv->rx_tasklet.data = 0; | |
2080 | ||
2081 | priv->pm_mode = AT76_PM_OFF; | |
2082 | priv->pm_period = 0; | |
2083 | ||
2084 | /* unit us */ | |
2085 | priv->hw->channel_change_time = 100000; | |
2086 | ||
2087 | return priv; | |
2088 | } | |
2089 | ||
2090 | static int at76_alloc_urbs(struct at76_priv *priv, | |
2091 | struct usb_interface *interface) | |
2092 | { | |
2093 | struct usb_endpoint_descriptor *endpoint, *ep_in, *ep_out; | |
2094 | int i; | |
2095 | int buffer_size; | |
2096 | struct usb_host_interface *iface_desc; | |
2097 | ||
2098 | at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__); | |
2099 | ||
2100 | at76_dbg(DBG_URB, "%s: NumEndpoints %d ", __func__, | |
2101 | interface->altsetting[0].desc.bNumEndpoints); | |
2102 | ||
2103 | ep_in = NULL; | |
2104 | ep_out = NULL; | |
2105 | iface_desc = interface->cur_altsetting; | |
2106 | for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { | |
2107 | endpoint = &iface_desc->endpoint[i].desc; | |
2108 | ||
2109 | at76_dbg(DBG_URB, "%s: %d. endpoint: addr 0x%x attr 0x%x", | |
2110 | __func__, i, endpoint->bEndpointAddress, | |
2111 | endpoint->bmAttributes); | |
2112 | ||
2113 | if (!ep_in && usb_endpoint_is_bulk_in(endpoint)) | |
2114 | ep_in = endpoint; | |
2115 | ||
2116 | if (!ep_out && usb_endpoint_is_bulk_out(endpoint)) | |
2117 | ep_out = endpoint; | |
2118 | } | |
2119 | ||
2120 | if (!ep_in || !ep_out) { | |
2121 | dev_printk(KERN_ERR, &interface->dev, | |
2122 | "bulk endpoints missing\n"); | |
2123 | return -ENXIO; | |
2124 | } | |
2125 | ||
2126 | priv->rx_pipe = usb_rcvbulkpipe(priv->udev, ep_in->bEndpointAddress); | |
2127 | priv->tx_pipe = usb_sndbulkpipe(priv->udev, ep_out->bEndpointAddress); | |
2128 | ||
2129 | priv->rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
2130 | priv->tx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
2131 | if (!priv->rx_urb || !priv->tx_urb) { | |
2132 | dev_printk(KERN_ERR, &interface->dev, "cannot allocate URB\n"); | |
2133 | return -ENOMEM; | |
2134 | } | |
2135 | ||
2136 | buffer_size = sizeof(struct at76_tx_buffer) + MAX_PADDING_SIZE; | |
2137 | priv->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL); | |
2138 | if (!priv->bulk_out_buffer) { | |
2139 | dev_printk(KERN_ERR, &interface->dev, | |
2140 | "cannot allocate output buffer\n"); | |
2141 | return -ENOMEM; | |
2142 | } | |
2143 | ||
2144 | at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__); | |
2145 | ||
2146 | return 0; | |
2147 | } | |
2148 | ||
2149 | static struct ieee80211_rate at76_rates[] = { | |
2150 | { .bitrate = 10, .hw_value = TX_RATE_1MBIT, }, | |
2151 | { .bitrate = 20, .hw_value = TX_RATE_2MBIT, }, | |
2152 | { .bitrate = 55, .hw_value = TX_RATE_5_5MBIT, }, | |
2153 | { .bitrate = 110, .hw_value = TX_RATE_11MBIT, }, | |
2154 | }; | |
2155 | ||
2156 | static struct ieee80211_channel at76_channels[] = { | |
2157 | { .center_freq = 2412, .hw_value = 1 }, | |
2158 | { .center_freq = 2417, .hw_value = 2 }, | |
2159 | { .center_freq = 2422, .hw_value = 3 }, | |
2160 | { .center_freq = 2427, .hw_value = 4 }, | |
2161 | { .center_freq = 2432, .hw_value = 5 }, | |
2162 | { .center_freq = 2437, .hw_value = 6 }, | |
2163 | { .center_freq = 2442, .hw_value = 7 }, | |
2164 | { .center_freq = 2447, .hw_value = 8 }, | |
2165 | { .center_freq = 2452, .hw_value = 9 }, | |
2166 | { .center_freq = 2457, .hw_value = 10 }, | |
2167 | { .center_freq = 2462, .hw_value = 11 }, | |
2168 | { .center_freq = 2467, .hw_value = 12 }, | |
2169 | { .center_freq = 2472, .hw_value = 13 }, | |
2170 | { .center_freq = 2484, .hw_value = 14 } | |
2171 | }; | |
2172 | ||
2173 | static struct ieee80211_supported_band at76_supported_band = { | |
2174 | .channels = at76_channels, | |
2175 | .n_channels = ARRAY_SIZE(at76_channels), | |
2176 | .bitrates = at76_rates, | |
2177 | .n_bitrates = ARRAY_SIZE(at76_rates), | |
2178 | }; | |
2179 | ||
2180 | /* Register network device and initialize the hardware */ | |
2181 | static int at76_init_new_device(struct at76_priv *priv, | |
2182 | struct usb_interface *interface) | |
2183 | { | |
2184 | int ret; | |
2185 | ||
2186 | /* set up the endpoint information */ | |
2187 | /* check out the endpoints */ | |
2188 | ||
2189 | at76_dbg(DBG_DEVSTART, "USB interface: %d endpoints", | |
2190 | interface->cur_altsetting->desc.bNumEndpoints); | |
2191 | ||
2192 | ret = at76_alloc_urbs(priv, interface); | |
2193 | if (ret < 0) | |
2194 | goto exit; | |
2195 | ||
2196 | /* MAC address */ | |
2197 | ret = at76_get_hw_config(priv); | |
2198 | if (ret < 0) { | |
2199 | dev_printk(KERN_ERR, &interface->dev, | |
2200 | "cannot get MAC address\n"); | |
2201 | goto exit; | |
2202 | } | |
2203 | ||
2204 | priv->domain = at76_get_reg_domain(priv->regulatory_domain); | |
2205 | ||
2206 | priv->channel = DEF_CHANNEL; | |
2207 | priv->iw_mode = IW_MODE_INFRA; | |
2208 | priv->rts_threshold = DEF_RTS_THRESHOLD; | |
2209 | priv->frag_threshold = DEF_FRAG_THRESHOLD; | |
2210 | priv->short_retry_limit = DEF_SHORT_RETRY_LIMIT; | |
2211 | priv->txrate = TX_RATE_AUTO; | |
2212 | priv->preamble_type = PREAMBLE_TYPE_LONG; | |
2213 | priv->beacon_period = 100; | |
2214 | priv->auth_mode = WLAN_AUTH_OPEN; | |
2215 | priv->scan_min_time = DEF_SCAN_MIN_TIME; | |
2216 | priv->scan_max_time = DEF_SCAN_MAX_TIME; | |
2217 | priv->scan_mode = SCAN_TYPE_ACTIVE; | |
2218 | ||
2219 | /* mac80211 initialisation */ | |
2220 | priv->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); | |
2221 | priv->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &at76_supported_band; | |
2222 | priv->hw->flags = IEEE80211_HW_RX_INCLUDES_FCS | | |
2223 | IEEE80211_HW_SIGNAL_UNSPEC; | |
2224 | ||
2225 | SET_IEEE80211_DEV(priv->hw, &interface->dev); | |
2226 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); | |
2227 | ||
2228 | ret = ieee80211_register_hw(priv->hw); | |
2229 | if (ret) { | |
2230 | printk(KERN_ERR "cannot register mac80211 hw (status %d)!\n", | |
2231 | ret); | |
2232 | goto exit; | |
2233 | } | |
2234 | ||
2235 | priv->mac80211_registered = 1; | |
2236 | ||
2237 | printk(KERN_INFO "%s: USB %s, MAC %s, firmware %d.%d.%d-%d\n", | |
2238 | wiphy_name(priv->hw->wiphy), | |
2239 | interface->dev.bus_id, mac2str(priv->mac_addr), | |
2240 | priv->fw_version.major, priv->fw_version.minor, | |
2241 | priv->fw_version.patch, priv->fw_version.build); | |
2242 | printk(KERN_INFO "%s: regulatory domain 0x%02x: %s\n", | |
2243 | wiphy_name(priv->hw->wiphy), | |
2244 | priv->regulatory_domain, priv->domain->name); | |
2245 | ||
2246 | exit: | |
2247 | return ret; | |
2248 | } | |
2249 | ||
2250 | static void at76_delete_device(struct at76_priv *priv) | |
2251 | { | |
2252 | at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__); | |
2253 | ||
2254 | /* The device is gone, don't bother turning it off */ | |
2255 | priv->device_unplugged = 1; | |
2256 | ||
2257 | if (priv->mac80211_registered) | |
2258 | ieee80211_unregister_hw(priv->hw); | |
2259 | ||
2260 | /* assuming we used keventd, it must quiesce too */ | |
2261 | flush_scheduled_work(); | |
2262 | ||
2263 | kfree(priv->bulk_out_buffer); | |
2264 | ||
2265 | if (priv->tx_urb) { | |
2266 | usb_kill_urb(priv->tx_urb); | |
2267 | usb_free_urb(priv->tx_urb); | |
2268 | } | |
2269 | if (priv->rx_urb) { | |
2270 | usb_kill_urb(priv->rx_urb); | |
2271 | usb_free_urb(priv->rx_urb); | |
2272 | } | |
2273 | ||
2274 | at76_dbg(DBG_PROC_ENTRY, "%s: unlinked urbs", __func__); | |
2275 | ||
2276 | if (priv->rx_skb) | |
2277 | kfree_skb(priv->rx_skb); | |
2278 | ||
2279 | usb_put_dev(priv->udev); | |
2280 | ||
2281 | at76_dbg(DBG_PROC_ENTRY, "%s: before freeing priv/ieee80211_hw", | |
2282 | __func__); | |
2283 | ieee80211_free_hw(priv->hw); | |
2284 | ||
2285 | at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__); | |
2286 | } | |
2287 | ||
2288 | static int at76_probe(struct usb_interface *interface, | |
2289 | const struct usb_device_id *id) | |
2290 | { | |
2291 | int ret; | |
2292 | struct at76_priv *priv; | |
2293 | struct fwentry *fwe; | |
2294 | struct usb_device *udev; | |
2295 | int op_mode; | |
2296 | int need_ext_fw = 0; | |
2297 | struct mib_fw_version fwv; | |
2298 | int board_type = (int)id->driver_info; | |
2299 | ||
2300 | udev = usb_get_dev(interface_to_usbdev(interface)); | |
2301 | ||
2302 | /* Load firmware into kernel memory */ | |
2303 | fwe = at76_load_firmware(udev, board_type); | |
2304 | if (!fwe) { | |
2305 | ret = -ENOENT; | |
2306 | goto error; | |
2307 | } | |
2308 | ||
2309 | op_mode = at76_get_op_mode(udev); | |
2310 | ||
2311 | at76_dbg(DBG_DEVSTART, "opmode %d", op_mode); | |
2312 | ||
2313 | /* we get OPMODE_NONE with 2.4.23, SMC2662W-AR ??? | |
2314 | we get 204 with 2.4.23, Fiberline FL-WL240u (505A+RFMD2958) ??? */ | |
2315 | ||
2316 | if (op_mode == OPMODE_HW_CONFIG_MODE) { | |
2317 | dev_printk(KERN_ERR, &interface->dev, | |
2318 | "cannot handle a device in HW_CONFIG_MODE\n"); | |
2319 | ret = -EBUSY; | |
2320 | goto error; | |
2321 | } | |
2322 | ||
2323 | if (op_mode != OPMODE_NORMAL_NIC_WITH_FLASH | |
2324 | && op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) { | |
2325 | /* download internal firmware part */ | |
2326 | dev_printk(KERN_DEBUG, &interface->dev, | |
2327 | "downloading internal firmware\n"); | |
2328 | ret = at76_load_internal_fw(udev, fwe); | |
2329 | if (ret < 0) { | |
2330 | dev_printk(KERN_ERR, &interface->dev, | |
2331 | "error %d downloading internal firmware\n", | |
2332 | ret); | |
2333 | goto error; | |
2334 | } | |
2335 | usb_put_dev(udev); | |
2336 | return ret; | |
2337 | } | |
2338 | ||
2339 | /* Internal firmware already inside the device. Get firmware | |
2340 | * version to test if external firmware is loaded. | |
2341 | * This works only for newer firmware, e.g. the Intersil 0.90.x | |
2342 | * says "control timeout on ep0in" and subsequent | |
2343 | * at76_get_op_mode() fail too :-( */ | |
2344 | ||
2345 | /* if version >= 0.100.x.y or device with built-in flash we can | |
2346 | * query the device for the fw version */ | |
2347 | if ((fwe->fw_version.major > 0 || fwe->fw_version.minor >= 100) | |
2348 | || (op_mode == OPMODE_NORMAL_NIC_WITH_FLASH)) { | |
2349 | ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv)); | |
2350 | if (ret < 0 || (fwv.major | fwv.minor) == 0) | |
2351 | need_ext_fw = 1; | |
2352 | } else | |
2353 | /* No way to check firmware version, reload to be sure */ | |
2354 | need_ext_fw = 1; | |
2355 | ||
2356 | if (need_ext_fw) { | |
2357 | dev_printk(KERN_DEBUG, &interface->dev, | |
2358 | "downloading external firmware\n"); | |
2359 | ||
2360 | ret = at76_load_external_fw(udev, fwe); | |
2361 | if (ret) | |
2362 | goto error; | |
2363 | ||
2364 | /* Re-check firmware version */ | |
2365 | ret = at76_get_mib(udev, MIB_FW_VERSION, &fwv, sizeof(fwv)); | |
2366 | if (ret < 0) { | |
2367 | dev_printk(KERN_ERR, &interface->dev, | |
2368 | "error %d getting firmware version\n", ret); | |
2369 | goto error; | |
2370 | } | |
2371 | } | |
2372 | ||
2373 | priv = at76_alloc_new_device(udev); | |
2374 | if (!priv) { | |
2375 | ret = -ENOMEM; | |
2376 | goto error; | |
2377 | } | |
2378 | ||
2379 | usb_set_intfdata(interface, priv); | |
2380 | ||
2381 | memcpy(&priv->fw_version, &fwv, sizeof(struct mib_fw_version)); | |
2382 | priv->board_type = board_type; | |
2383 | ||
2384 | ret = at76_init_new_device(priv, interface); | |
2385 | if (ret < 0) | |
2386 | at76_delete_device(priv); | |
2387 | ||
2388 | return ret; | |
2389 | ||
2390 | error: | |
2391 | usb_put_dev(udev); | |
2392 | return ret; | |
2393 | } | |
2394 | ||
2395 | static void at76_disconnect(struct usb_interface *interface) | |
2396 | { | |
2397 | struct at76_priv *priv; | |
2398 | ||
2399 | priv = usb_get_intfdata(interface); | |
2400 | usb_set_intfdata(interface, NULL); | |
2401 | ||
2402 | /* Disconnect after loading internal firmware */ | |
2403 | if (!priv) | |
2404 | return; | |
2405 | ||
2406 | printk(KERN_INFO "%s: disconnecting\n", wiphy_name(priv->hw->wiphy)); | |
2407 | at76_delete_device(priv); | |
2408 | dev_printk(KERN_INFO, &interface->dev, "disconnected\n"); | |
2409 | } | |
2410 | ||
2411 | /* Structure for registering this driver with the USB subsystem */ | |
2412 | static struct usb_driver at76_driver = { | |
2413 | .name = DRIVER_NAME, | |
2414 | .probe = at76_probe, | |
2415 | .disconnect = at76_disconnect, | |
2416 | .id_table = dev_table, | |
2417 | }; | |
2418 | ||
2419 | static int __init at76_mod_init(void) | |
2420 | { | |
2421 | int result; | |
2422 | ||
2423 | printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " loading\n"); | |
2424 | ||
2425 | mutex_init(&fw_mutex); | |
2426 | ||
2427 | /* register this driver with the USB subsystem */ | |
2428 | result = usb_register(&at76_driver); | |
2429 | if (result < 0) | |
2430 | printk(KERN_ERR DRIVER_NAME | |
2431 | ": usb_register failed (status %d)\n", result); | |
2432 | ||
2433 | led_trigger_register_simple("at76_usb-tx", &ledtrig_tx); | |
2434 | return result; | |
2435 | } | |
2436 | ||
2437 | static void __exit at76_mod_exit(void) | |
2438 | { | |
2439 | int i; | |
2440 | ||
2441 | printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " unloading\n"); | |
2442 | usb_deregister(&at76_driver); | |
2443 | for (i = 0; i < ARRAY_SIZE(firmwares); i++) { | |
2444 | if (firmwares[i].fw) | |
2445 | release_firmware(firmwares[i].fw); | |
2446 | } | |
2447 | led_trigger_unregister_simple(ledtrig_tx); | |
2448 | } | |
2449 | ||
2450 | module_param_named(debug, at76_debug, int, 0600); | |
2451 | MODULE_PARM_DESC(debug, "Debugging level"); | |
2452 | ||
2453 | module_init(at76_mod_init); | |
2454 | module_exit(at76_mod_exit); | |
2455 | ||
2456 | MODULE_AUTHOR("Oliver Kurth <oku@masqmail.cx>"); | |
2457 | MODULE_AUTHOR("Joerg Albert <joerg.albert@gmx.de>"); | |
2458 | MODULE_AUTHOR("Alex <alex@foogod.com>"); | |
2459 | MODULE_AUTHOR("Nick Jones"); | |
2460 | MODULE_AUTHOR("Balint Seeber <n0_5p4m_p13453@hotmail.com>"); | |
2461 | MODULE_AUTHOR("Pavel Roskin <proski@gnu.org>"); | |
2462 | MODULE_AUTHOR("Guido Guenther <agx@sigxcpu.org>"); | |
2463 | MODULE_AUTHOR("Kalle Valo <kalle.valo@iki.fi>"); | |
2464 | MODULE_DESCRIPTION(DRIVER_DESC); | |
2465 | MODULE_LICENSE("GPL"); |