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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> | |
a185045c | 10 | * Copyright (c) 2010 Sebastian Smolorz <sesmo@gmx.net> |
1264b951 KV |
11 | * |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License as | |
14 | * published by the Free Software Foundation; either version 2 of | |
15 | * the License, or (at your option) any later version. | |
16 | * | |
17 | * This file is part of the Berlios driver for WLAN USB devices based on the | |
18 | * Atmel AT76C503A/505/505A. | |
19 | * | |
20 | * Some iw_handler code was taken from airo.c, (C) 1999 Benjamin Reed | |
21 | * | |
ba3907e5 KV |
22 | * TODO list is at the wiki: |
23 | * | |
24 | * http://wireless.kernel.org/en/users/Drivers/at76c50x-usb#TODO | |
25 | * | |
1264b951 KV |
26 | */ |
27 | ||
28 | #include <linux/init.h> | |
29 | #include <linux/kernel.h> | |
30 | #include <linux/sched.h> | |
31 | #include <linux/errno.h> | |
32 | #include <linux/slab.h> | |
33 | #include <linux/module.h> | |
34 | #include <linux/spinlock.h> | |
35 | #include <linux/list.h> | |
36 | #include <linux/usb.h> | |
37 | #include <linux/netdevice.h> | |
38 | #include <linux/if_arp.h> | |
39 | #include <linux/etherdevice.h> | |
40 | #include <linux/ethtool.h> | |
41 | #include <linux/wireless.h> | |
42 | #include <net/iw_handler.h> | |
43 | #include <net/ieee80211_radiotap.h> | |
44 | #include <linux/firmware.h> | |
45 | #include <linux/leds.h> | |
46 | #include <net/mac80211.h> | |
47 | ||
48 | #include "at76c50x-usb.h" | |
49 | ||
50 | /* Version information */ | |
51 | #define DRIVER_NAME "at76c50x-usb" | |
52 | #define DRIVER_VERSION "0.17" | |
53 | #define DRIVER_DESC "Atmel at76x USB Wireless LAN Driver" | |
54 | ||
55 | /* at76_debug bits */ | |
56 | #define DBG_PROGRESS 0x00000001 /* authentication/accociation */ | |
57 | #define DBG_BSS_TABLE 0x00000002 /* show BSS table after scans */ | |
58 | #define DBG_IOCTL 0x00000004 /* ioctl calls / settings */ | |
59 | #define DBG_MAC_STATE 0x00000008 /* MAC state transitions */ | |
60 | #define DBG_TX_DATA 0x00000010 /* tx header */ | |
61 | #define DBG_TX_DATA_CONTENT 0x00000020 /* tx content */ | |
62 | #define DBG_TX_MGMT 0x00000040 /* tx management */ | |
63 | #define DBG_RX_DATA 0x00000080 /* rx data header */ | |
64 | #define DBG_RX_DATA_CONTENT 0x00000100 /* rx data content */ | |
65 | #define DBG_RX_MGMT 0x00000200 /* rx mgmt frame headers */ | |
66 | #define DBG_RX_BEACON 0x00000400 /* rx beacon */ | |
67 | #define DBG_RX_CTRL 0x00000800 /* rx control */ | |
68 | #define DBG_RX_MGMT_CONTENT 0x00001000 /* rx mgmt content */ | |
69 | #define DBG_RX_FRAGS 0x00002000 /* rx data fragment handling */ | |
70 | #define DBG_DEVSTART 0x00004000 /* fw download, device start */ | |
71 | #define DBG_URB 0x00008000 /* rx urb status, ... */ | |
72 | #define DBG_RX_ATMEL_HDR 0x00010000 /* Atmel-specific Rx headers */ | |
73 | #define DBG_PROC_ENTRY 0x00020000 /* procedure entries/exits */ | |
74 | #define DBG_PM 0x00040000 /* power management settings */ | |
75 | #define DBG_BSS_MATCH 0x00080000 /* BSS match failures */ | |
76 | #define DBG_PARAMS 0x00100000 /* show configured parameters */ | |
77 | #define DBG_WAIT_COMPLETE 0x00200000 /* command completion */ | |
78 | #define DBG_RX_FRAGS_SKB 0x00400000 /* skb header of Rx fragments */ | |
79 | #define DBG_BSS_TABLE_RM 0x00800000 /* purging bss table entries */ | |
80 | #define DBG_MONITOR_MODE 0x01000000 /* monitor mode */ | |
81 | #define DBG_MIB 0x02000000 /* dump all MIBs on startup */ | |
82 | #define DBG_MGMT_TIMER 0x04000000 /* dump mgmt_timer ops */ | |
83 | #define DBG_WE_EVENTS 0x08000000 /* dump wireless events */ | |
84 | #define DBG_FW 0x10000000 /* firmware download */ | |
85 | #define DBG_DFU 0x20000000 /* device firmware upgrade */ | |
86 | #define DBG_CMD 0x40000000 | |
87 | #define DBG_MAC80211 0x80000000 | |
88 | ||
89 | #define DBG_DEFAULTS 0 | |
90 | ||
91 | /* Use our own dbg macro */ | |
903c99d8 JP |
92 | #define at76_dbg(bits, format, arg...) \ |
93 | do { \ | |
94 | if (at76_debug & (bits)) \ | |
95 | printk(KERN_DEBUG DRIVER_NAME ": " format "\n", ##arg); \ | |
96 | } while (0) | |
1264b951 | 97 | |
903c99d8 JP |
98 | #define at76_dbg_dump(bits, buf, len, format, arg...) \ |
99 | do { \ | |
100 | if (at76_debug & (bits)) { \ | |
101 | printk(KERN_DEBUG DRIVER_NAME ": " format "\n", ##arg); \ | |
102 | print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, buf, len); \ | |
103 | } \ | |
104 | } while (0) | |
1264b951 | 105 | |
2ce4f9d8 | 106 | static uint at76_debug = DBG_DEFAULTS; |
1264b951 KV |
107 | |
108 | /* Protect against concurrent firmware loading and parsing */ | |
109 | static struct mutex fw_mutex; | |
110 | ||
111 | static struct fwentry firmwares[] = { | |
112 | [0] = { "" }, | |
113 | [BOARD_503_ISL3861] = { "atmel_at76c503-i3861.bin" }, | |
114 | [BOARD_503_ISL3863] = { "atmel_at76c503-i3863.bin" }, | |
115 | [BOARD_503] = { "atmel_at76c503-rfmd.bin" }, | |
116 | [BOARD_503_ACC] = { "atmel_at76c503-rfmd-acc.bin" }, | |
117 | [BOARD_505] = { "atmel_at76c505-rfmd.bin" }, | |
118 | [BOARD_505_2958] = { "atmel_at76c505-rfmd2958.bin" }, | |
119 | [BOARD_505A] = { "atmel_at76c505a-rfmd2958.bin" }, | |
120 | [BOARD_505AMX] = { "atmel_at76c505amx-rfmd.bin" }, | |
121 | }; | |
202982db BH |
122 | MODULE_FIRMWARE("atmel_at76c503-i3861.bin"); |
123 | MODULE_FIRMWARE("atmel_at76c503-i3863.bin"); | |
124 | MODULE_FIRMWARE("atmel_at76c503-rfmd.bin"); | |
125 | MODULE_FIRMWARE("atmel_at76c503-rfmd-acc.bin"); | |
126 | MODULE_FIRMWARE("atmel_at76c505-rfmd.bin"); | |
127 | MODULE_FIRMWARE("atmel_at76c505-rfmd2958.bin"); | |
128 | MODULE_FIRMWARE("atmel_at76c505a-rfmd2958.bin"); | |
129 | MODULE_FIRMWARE("atmel_at76c505amx-rfmd.bin"); | |
1264b951 KV |
130 | |
131 | #define USB_DEVICE_DATA(__ops) .driver_info = (kernel_ulong_t)(__ops) | |
132 | ||
22796d14 | 133 | static const struct usb_device_id dev_table[] = { |
1264b951 KV |
134 | /* |
135 | * at76c503-i3861 | |
136 | */ | |
137 | /* Generic AT76C503/3861 device */ | |
138 | { USB_DEVICE(0x03eb, 0x7603), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
139 | /* Linksys WUSB11 v2.1/v2.6 */ | |
140 | { USB_DEVICE(0x066b, 0x2211), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
141 | /* Netgear MA101 rev. A */ | |
142 | { USB_DEVICE(0x0864, 0x4100), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
143 | /* Tekram U300C / Allnet ALL0193 */ | |
144 | { USB_DEVICE(0x0b3b, 0x1612), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
145 | /* HP HN210W J7801A */ | |
146 | { USB_DEVICE(0x03f0, 0x011c), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
147 | /* Sitecom/Z-Com/Zyxel M4Y-750 */ | |
148 | { USB_DEVICE(0x0cde, 0x0001), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
149 | /* Dynalink/Askey WLL013 (intersil) */ | |
150 | { USB_DEVICE(0x069a, 0x0320), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
151 | /* EZ connect 11Mpbs Wireless USB Adapter SMC2662W v1 */ | |
152 | { USB_DEVICE(0x0d5c, 0xa001), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
153 | /* BenQ AWL300 */ | |
154 | { USB_DEVICE(0x04a5, 0x9000), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
155 | /* Addtron AWU-120, Compex WLU11 */ | |
156 | { USB_DEVICE(0x05dd, 0xff31), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
157 | /* Intel AP310 AnyPoint II USB */ | |
158 | { USB_DEVICE(0x8086, 0x0200), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
159 | /* Dynalink L11U */ | |
160 | { USB_DEVICE(0x0d8e, 0x7100), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
161 | /* Arescom WL-210, FCC id 07J-GL2411USB */ | |
162 | { USB_DEVICE(0x0d8e, 0x7110), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
163 | /* I-O DATA WN-B11/USB */ | |
164 | { USB_DEVICE(0x04bb, 0x0919), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
165 | /* BT Voyager 1010 */ | |
166 | { USB_DEVICE(0x069a, 0x0821), USB_DEVICE_DATA(BOARD_503_ISL3861) }, | |
167 | /* | |
168 | * at76c503-i3863 | |
169 | */ | |
170 | /* Generic AT76C503/3863 device */ | |
171 | { USB_DEVICE(0x03eb, 0x7604), USB_DEVICE_DATA(BOARD_503_ISL3863) }, | |
172 | /* Samsung SWL-2100U */ | |
173 | { USB_DEVICE(0x055d, 0xa000), USB_DEVICE_DATA(BOARD_503_ISL3863) }, | |
174 | /* | |
175 | * at76c503-rfmd | |
176 | */ | |
177 | /* Generic AT76C503/RFMD device */ | |
178 | { USB_DEVICE(0x03eb, 0x7605), USB_DEVICE_DATA(BOARD_503) }, | |
179 | /* Dynalink/Askey WLL013 (rfmd) */ | |
180 | { USB_DEVICE(0x069a, 0x0321), USB_DEVICE_DATA(BOARD_503) }, | |
181 | /* Linksys WUSB11 v2.6 */ | |
182 | { USB_DEVICE(0x077b, 0x2219), USB_DEVICE_DATA(BOARD_503) }, | |
183 | /* Network Everywhere NWU11B */ | |
184 | { USB_DEVICE(0x077b, 0x2227), USB_DEVICE_DATA(BOARD_503) }, | |
185 | /* Netgear MA101 rev. B */ | |
186 | { USB_DEVICE(0x0864, 0x4102), USB_DEVICE_DATA(BOARD_503) }, | |
187 | /* D-Link DWL-120 rev. E */ | |
188 | { USB_DEVICE(0x2001, 0x3200), USB_DEVICE_DATA(BOARD_503) }, | |
189 | /* Actiontec 802UAT1, HWU01150-01UK */ | |
190 | { USB_DEVICE(0x1668, 0x7605), USB_DEVICE_DATA(BOARD_503) }, | |
191 | /* AirVast W-Buddie WN210 */ | |
192 | { USB_DEVICE(0x03eb, 0x4102), USB_DEVICE_DATA(BOARD_503) }, | |
193 | /* Dick Smith Electronics XH1153 802.11b USB adapter */ | |
194 | { USB_DEVICE(0x1371, 0x5743), USB_DEVICE_DATA(BOARD_503) }, | |
195 | /* CNet CNUSB611 */ | |
196 | { USB_DEVICE(0x1371, 0x0001), USB_DEVICE_DATA(BOARD_503) }, | |
197 | /* FiberLine FL-WL200U */ | |
198 | { USB_DEVICE(0x1371, 0x0002), USB_DEVICE_DATA(BOARD_503) }, | |
199 | /* BenQ AWL400 USB stick */ | |
200 | { USB_DEVICE(0x04a5, 0x9001), USB_DEVICE_DATA(BOARD_503) }, | |
201 | /* 3Com 3CRSHEW696 */ | |
202 | { USB_DEVICE(0x0506, 0x0a01), USB_DEVICE_DATA(BOARD_503) }, | |
203 | /* Siemens Santis ADSL WLAN USB adapter WLL 013 */ | |
204 | { USB_DEVICE(0x0681, 0x001b), USB_DEVICE_DATA(BOARD_503) }, | |
205 | /* Belkin F5D6050, version 2 */ | |
206 | { USB_DEVICE(0x050d, 0x0050), USB_DEVICE_DATA(BOARD_503) }, | |
207 | /* iBlitzz, BWU613 (not *B or *SB) */ | |
208 | { USB_DEVICE(0x07b8, 0xb000), USB_DEVICE_DATA(BOARD_503) }, | |
209 | /* Gigabyte GN-WLBM101 */ | |
210 | { USB_DEVICE(0x1044, 0x8003), USB_DEVICE_DATA(BOARD_503) }, | |
211 | /* Planex GW-US11S */ | |
212 | { USB_DEVICE(0x2019, 0x3220), USB_DEVICE_DATA(BOARD_503) }, | |
213 | /* Internal WLAN adapter in h5[4,5]xx series iPAQs */ | |
214 | { USB_DEVICE(0x049f, 0x0032), USB_DEVICE_DATA(BOARD_503) }, | |
215 | /* Corega Wireless LAN USB-11 mini */ | |
216 | { USB_DEVICE(0x07aa, 0x0011), USB_DEVICE_DATA(BOARD_503) }, | |
217 | /* Corega Wireless LAN USB-11 mini2 */ | |
218 | { USB_DEVICE(0x07aa, 0x0018), USB_DEVICE_DATA(BOARD_503) }, | |
219 | /* Uniden PCW100 */ | |
220 | { USB_DEVICE(0x05dd, 0xff35), USB_DEVICE_DATA(BOARD_503) }, | |
221 | /* | |
222 | * at76c503-rfmd-acc | |
223 | */ | |
224 | /* SMC2664W */ | |
225 | { USB_DEVICE(0x083a, 0x3501), USB_DEVICE_DATA(BOARD_503_ACC) }, | |
226 | /* Belkin F5D6050, SMC2662W v2, SMC2662W-AR */ | |
227 | { USB_DEVICE(0x0d5c, 0xa002), USB_DEVICE_DATA(BOARD_503_ACC) }, | |
228 | /* | |
229 | * at76c505-rfmd | |
230 | */ | |
231 | /* Generic AT76C505/RFMD */ | |
232 | { USB_DEVICE(0x03eb, 0x7606), USB_DEVICE_DATA(BOARD_505) }, | |
233 | /* | |
234 | * at76c505-rfmd2958 | |
235 | */ | |
236 | /* Generic AT76C505/RFMD, OvisLink WL-1130USB */ | |
237 | { USB_DEVICE(0x03eb, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) }, | |
238 | /* Fiberline FL-WL240U */ | |
239 | { USB_DEVICE(0x1371, 0x0014), USB_DEVICE_DATA(BOARD_505_2958) }, | |
240 | /* CNet CNUSB-611G */ | |
241 | { USB_DEVICE(0x1371, 0x0013), USB_DEVICE_DATA(BOARD_505_2958) }, | |
242 | /* Linksys WUSB11 v2.8 */ | |
243 | { USB_DEVICE(0x1915, 0x2233), USB_DEVICE_DATA(BOARD_505_2958) }, | |
244 | /* Xterasys XN-2122B, IBlitzz BWU613B/BWU613SB */ | |
245 | { USB_DEVICE(0x12fd, 0x1001), USB_DEVICE_DATA(BOARD_505_2958) }, | |
246 | /* Corega WLAN USB Stick 11 */ | |
247 | { USB_DEVICE(0x07aa, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) }, | |
248 | /* Microstar MSI Box MS6978 */ | |
249 | { USB_DEVICE(0x0db0, 0x1020), USB_DEVICE_DATA(BOARD_505_2958) }, | |
250 | /* | |
251 | * at76c505a-rfmd2958 | |
252 | */ | |
253 | /* Generic AT76C505A device */ | |
254 | { USB_DEVICE(0x03eb, 0x7614), USB_DEVICE_DATA(BOARD_505A) }, | |
255 | /* Generic AT76C505AS device */ | |
256 | { USB_DEVICE(0x03eb, 0x7617), USB_DEVICE_DATA(BOARD_505A) }, | |
257 | /* Siemens Gigaset USB WLAN Adapter 11 */ | |
258 | { USB_DEVICE(0x1690, 0x0701), USB_DEVICE_DATA(BOARD_505A) }, | |
02a9a392 JL |
259 | /* OQO Model 01+ Internal Wi-Fi */ |
260 | { USB_DEVICE(0x1557, 0x0002), USB_DEVICE_DATA(BOARD_505A) }, | |
1264b951 KV |
261 | /* |
262 | * at76c505amx-rfmd | |
263 | */ | |
264 | /* Generic AT76C505AMX device */ | |
265 | { USB_DEVICE(0x03eb, 0x7615), USB_DEVICE_DATA(BOARD_505AMX) }, | |
266 | { } | |
267 | }; | |
268 | ||
269 | MODULE_DEVICE_TABLE(usb, dev_table); | |
270 | ||
271 | /* Supported rates of this hardware, bit 7 marks basic rates */ | |
272 | static const u8 hw_rates[] = { 0x82, 0x84, 0x0b, 0x16 }; | |
273 | ||
274 | static const char *const preambles[] = { "long", "short", "auto" }; | |
275 | ||
276 | /* Firmware download */ | |
277 | /* DFU states */ | |
278 | #define STATE_IDLE 0x00 | |
279 | #define STATE_DETACH 0x01 | |
280 | #define STATE_DFU_IDLE 0x02 | |
281 | #define STATE_DFU_DOWNLOAD_SYNC 0x03 | |
282 | #define STATE_DFU_DOWNLOAD_BUSY 0x04 | |
283 | #define STATE_DFU_DOWNLOAD_IDLE 0x05 | |
284 | #define STATE_DFU_MANIFEST_SYNC 0x06 | |
285 | #define STATE_DFU_MANIFEST 0x07 | |
286 | #define STATE_DFU_MANIFEST_WAIT_RESET 0x08 | |
287 | #define STATE_DFU_UPLOAD_IDLE 0x09 | |
288 | #define STATE_DFU_ERROR 0x0a | |
289 | ||
290 | /* DFU commands */ | |
291 | #define DFU_DETACH 0 | |
292 | #define DFU_DNLOAD 1 | |
293 | #define DFU_UPLOAD 2 | |
294 | #define DFU_GETSTATUS 3 | |
295 | #define DFU_CLRSTATUS 4 | |
296 | #define DFU_GETSTATE 5 | |
297 | #define DFU_ABORT 6 | |
298 | ||
299 | #define FW_BLOCK_SIZE 1024 | |
300 | ||
301 | struct dfu_status { | |
302 | unsigned char status; | |
303 | unsigned char poll_timeout[3]; | |
304 | unsigned char state; | |
305 | unsigned char string; | |
ba2d3587 | 306 | } __packed; |
1264b951 KV |
307 | |
308 | static inline int at76_is_intersil(enum board_type board) | |
309 | { | |
310 | return (board == BOARD_503_ISL3861 || board == BOARD_503_ISL3863); | |
311 | } | |
312 | ||
313 | static inline int at76_is_503rfmd(enum board_type board) | |
314 | { | |
315 | return (board == BOARD_503 || board == BOARD_503_ACC); | |
316 | } | |
317 | ||
318 | static inline int at76_is_505a(enum board_type board) | |
319 | { | |
320 | return (board == BOARD_505A || board == BOARD_505AMX); | |
321 | } | |
322 | ||
323 | /* Load a block of the first (internal) part of the firmware */ | |
324 | static int at76_load_int_fw_block(struct usb_device *udev, int blockno, | |
325 | void *block, int size) | |
326 | { | |
327 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), DFU_DNLOAD, | |
328 | USB_TYPE_CLASS | USB_DIR_OUT | | |
329 | USB_RECIP_INTERFACE, blockno, 0, block, size, | |
330 | USB_CTRL_GET_TIMEOUT); | |
331 | } | |
332 | ||
333 | static int at76_dfu_get_status(struct usb_device *udev, | |
334 | struct dfu_status *status) | |
335 | { | |
336 | int ret; | |
337 | ||
338 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATUS, | |
339 | USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, | |
340 | 0, 0, status, sizeof(struct dfu_status), | |
341 | USB_CTRL_GET_TIMEOUT); | |
342 | return ret; | |
343 | } | |
344 | ||
5d774b74 | 345 | static int at76_dfu_get_state(struct usb_device *udev, u8 *state) |
1264b951 KV |
346 | { |
347 | int ret; | |
348 | ||
349 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATE, | |
350 | USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE, | |
351 | 0, 0, state, 1, USB_CTRL_GET_TIMEOUT); | |
352 | return ret; | |
353 | } | |
354 | ||
355 | /* Convert timeout from the DFU status to jiffies */ | |
356 | static inline unsigned long at76_get_timeout(struct dfu_status *s) | |
357 | { | |
358 | return msecs_to_jiffies((s->poll_timeout[2] << 16) | |
359 | | (s->poll_timeout[1] << 8) | |
360 | | (s->poll_timeout[0])); | |
361 | } | |
362 | ||
363 | /* Load internal firmware from the buffer. If manifest_sync_timeout > 0, use | |
364 | * its value in jiffies in the MANIFEST_SYNC state. */ | |
365 | static int at76_usbdfu_download(struct usb_device *udev, u8 *buf, u32 size, | |
366 | int manifest_sync_timeout) | |
367 | { | |
1264b951 KV |
368 | int ret = 0; |
369 | int need_dfu_state = 1; | |
370 | int is_done = 0; | |
1264b951 KV |
371 | u32 dfu_timeout = 0; |
372 | int bsize = 0; | |
373 | int blockno = 0; | |
174beab7 AM |
374 | struct dfu_status *dfu_stat_buf = NULL; |
375 | u8 *dfu_state = NULL; | |
376 | u8 *block = NULL; | |
1264b951 KV |
377 | |
378 | at76_dbg(DBG_DFU, "%s( %p, %u, %d)", __func__, buf, size, | |
379 | manifest_sync_timeout); | |
380 | ||
381 | if (!size) { | |
6a4b09f8 | 382 | dev_err(&udev->dev, "FW buffer length invalid!\n"); |
1264b951 KV |
383 | return -EINVAL; |
384 | } | |
385 | ||
174beab7 AM |
386 | dfu_stat_buf = kmalloc(sizeof(struct dfu_status), GFP_KERNEL); |
387 | if (!dfu_stat_buf) { | |
388 | ret = -ENOMEM; | |
389 | goto exit; | |
390 | } | |
391 | ||
1264b951 | 392 | block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL); |
174beab7 AM |
393 | if (!block) { |
394 | ret = -ENOMEM; | |
395 | goto exit; | |
396 | } | |
397 | ||
398 | dfu_state = kmalloc(sizeof(u8), GFP_KERNEL); | |
399 | if (!dfu_state) { | |
400 | ret = -ENOMEM; | |
401 | goto exit; | |
402 | } | |
403 | *dfu_state = 0; | |
1264b951 KV |
404 | |
405 | do { | |
406 | if (need_dfu_state) { | |
174beab7 | 407 | ret = at76_dfu_get_state(udev, dfu_state); |
1264b951 | 408 | if (ret < 0) { |
6a4b09f8 JP |
409 | dev_err(&udev->dev, |
410 | "cannot get DFU state: %d\n", ret); | |
1264b951 KV |
411 | goto exit; |
412 | } | |
413 | need_dfu_state = 0; | |
414 | } | |
415 | ||
174beab7 | 416 | switch (*dfu_state) { |
1264b951 KV |
417 | case STATE_DFU_DOWNLOAD_SYNC: |
418 | at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_SYNC"); | |
174beab7 | 419 | ret = at76_dfu_get_status(udev, dfu_stat_buf); |
1264b951 | 420 | if (ret >= 0) { |
174beab7 AM |
421 | *dfu_state = dfu_stat_buf->state; |
422 | dfu_timeout = at76_get_timeout(dfu_stat_buf); | |
1264b951 KV |
423 | need_dfu_state = 0; |
424 | } else | |
6a4b09f8 JP |
425 | dev_err(&udev->dev, |
426 | "at76_dfu_get_status returned %d\n", | |
427 | ret); | |
1264b951 KV |
428 | break; |
429 | ||
430 | case STATE_DFU_DOWNLOAD_BUSY: | |
431 | at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_BUSY"); | |
432 | need_dfu_state = 1; | |
433 | ||
434 | at76_dbg(DBG_DFU, "DFU: Resetting device"); | |
435 | schedule_timeout_interruptible(dfu_timeout); | |
436 | break; | |
437 | ||
438 | case STATE_DFU_DOWNLOAD_IDLE: | |
439 | at76_dbg(DBG_DFU, "DOWNLOAD..."); | |
440 | /* fall through */ | |
441 | case STATE_DFU_IDLE: | |
442 | at76_dbg(DBG_DFU, "DFU IDLE"); | |
443 | ||
444 | bsize = min_t(int, size, FW_BLOCK_SIZE); | |
445 | memcpy(block, buf, bsize); | |
446 | at76_dbg(DBG_DFU, "int fw, size left = %5d, " | |
447 | "bsize = %4d, blockno = %2d", size, bsize, | |
448 | blockno); | |
449 | ret = | |
450 | at76_load_int_fw_block(udev, blockno, block, bsize); | |
451 | buf += bsize; | |
452 | size -= bsize; | |
453 | blockno++; | |
454 | ||
455 | if (ret != bsize) | |
6a4b09f8 JP |
456 | dev_err(&udev->dev, |
457 | "at76_load_int_fw_block returned %d\n", | |
458 | ret); | |
1264b951 KV |
459 | need_dfu_state = 1; |
460 | break; | |
461 | ||
462 | case STATE_DFU_MANIFEST_SYNC: | |
463 | at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_SYNC"); | |
464 | ||
174beab7 | 465 | ret = at76_dfu_get_status(udev, dfu_stat_buf); |
1264b951 KV |
466 | if (ret < 0) |
467 | break; | |
468 | ||
174beab7 AM |
469 | *dfu_state = dfu_stat_buf->state; |
470 | dfu_timeout = at76_get_timeout(dfu_stat_buf); | |
1264b951 KV |
471 | need_dfu_state = 0; |
472 | ||
473 | /* override the timeout from the status response, | |
474 | needed for AT76C505A */ | |
475 | if (manifest_sync_timeout > 0) | |
476 | dfu_timeout = manifest_sync_timeout; | |
477 | ||
478 | at76_dbg(DBG_DFU, "DFU: Waiting for manifest phase"); | |
479 | schedule_timeout_interruptible(dfu_timeout); | |
480 | break; | |
481 | ||
482 | case STATE_DFU_MANIFEST: | |
483 | at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST"); | |
484 | is_done = 1; | |
485 | break; | |
486 | ||
487 | case STATE_DFU_MANIFEST_WAIT_RESET: | |
488 | at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_WAIT_RESET"); | |
489 | is_done = 1; | |
490 | break; | |
491 | ||
492 | case STATE_DFU_UPLOAD_IDLE: | |
493 | at76_dbg(DBG_DFU, "STATE_DFU_UPLOAD_IDLE"); | |
494 | break; | |
495 | ||
496 | case STATE_DFU_ERROR: | |
497 | at76_dbg(DBG_DFU, "STATE_DFU_ERROR"); | |
498 | ret = -EPIPE; | |
499 | break; | |
500 | ||
501 | default: | |
174beab7 | 502 | at76_dbg(DBG_DFU, "DFU UNKNOWN STATE (%d)", *dfu_state); |
1264b951 KV |
503 | ret = -EINVAL; |
504 | break; | |
505 | } | |
506 | } while (!is_done && (ret >= 0)); | |
507 | ||
508 | exit: | |
174beab7 | 509 | kfree(dfu_state); |
1264b951 | 510 | kfree(block); |
174beab7 AM |
511 | kfree(dfu_stat_buf); |
512 | ||
1264b951 KV |
513 | if (ret >= 0) |
514 | ret = 0; | |
515 | ||
516 | return ret; | |
517 | } | |
518 | ||
1264b951 KV |
519 | /* LED trigger */ |
520 | static int tx_activity; | |
24ed960a | 521 | static void at76_ledtrig_tx_timerfunc(struct timer_list *unused); |
1d27e3e2 | 522 | static DEFINE_TIMER(ledtrig_tx_timer, at76_ledtrig_tx_timerfunc); |
1264b951 KV |
523 | DEFINE_LED_TRIGGER(ledtrig_tx); |
524 | ||
24ed960a | 525 | static void at76_ledtrig_tx_timerfunc(struct timer_list *unused) |
1264b951 KV |
526 | { |
527 | static int tx_lastactivity; | |
528 | ||
529 | if (tx_lastactivity != tx_activity) { | |
530 | tx_lastactivity = tx_activity; | |
531 | led_trigger_event(ledtrig_tx, LED_FULL); | |
532 | mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4); | |
533 | } else | |
534 | led_trigger_event(ledtrig_tx, LED_OFF); | |
535 | } | |
536 | ||
537 | static void at76_ledtrig_tx_activity(void) | |
538 | { | |
539 | tx_activity++; | |
540 | if (!timer_pending(&ledtrig_tx_timer)) | |
541 | mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4); | |
542 | } | |
543 | ||
544 | static int at76_remap(struct usb_device *udev) | |
545 | { | |
546 | int ret; | |
547 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0a, | |
548 | USB_TYPE_VENDOR | USB_DIR_OUT | | |
549 | USB_RECIP_INTERFACE, 0, 0, NULL, 0, | |
550 | USB_CTRL_GET_TIMEOUT); | |
551 | if (ret < 0) | |
552 | return ret; | |
553 | return 0; | |
554 | } | |
555 | ||
556 | static int at76_get_op_mode(struct usb_device *udev) | |
557 | { | |
558 | int ret; | |
5a2137dd JA |
559 | u8 saved; |
560 | u8 *op_mode; | |
1264b951 | 561 | |
5a2137dd JA |
562 | op_mode = kmalloc(1, GFP_NOIO); |
563 | if (!op_mode) | |
564 | return -ENOMEM; | |
1264b951 KV |
565 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, |
566 | USB_TYPE_VENDOR | USB_DIR_IN | | |
5a2137dd | 567 | USB_RECIP_INTERFACE, 0x01, 0, op_mode, 1, |
1264b951 | 568 | USB_CTRL_GET_TIMEOUT); |
5a2137dd JA |
569 | saved = *op_mode; |
570 | kfree(op_mode); | |
571 | ||
1264b951 KV |
572 | if (ret < 0) |
573 | return ret; | |
574 | else if (ret < 1) | |
575 | return -EIO; | |
576 | else | |
5a2137dd | 577 | return saved; |
1264b951 KV |
578 | } |
579 | ||
580 | /* Load a block of the second ("external") part of the firmware */ | |
581 | static inline int at76_load_ext_fw_block(struct usb_device *udev, int blockno, | |
582 | void *block, int size) | |
583 | { | |
584 | return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e, | |
585 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
586 | 0x0802, blockno, block, size, | |
587 | USB_CTRL_GET_TIMEOUT); | |
588 | } | |
589 | ||
590 | static inline int at76_get_hw_cfg(struct usb_device *udev, | |
591 | union at76_hwcfg *buf, int buf_size) | |
592 | { | |
593 | return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, | |
594 | USB_TYPE_VENDOR | USB_DIR_IN | | |
595 | USB_RECIP_INTERFACE, 0x0a02, 0, | |
596 | buf, buf_size, USB_CTRL_GET_TIMEOUT); | |
597 | } | |
598 | ||
599 | /* Intersil boards use a different "value" for GetHWConfig requests */ | |
600 | static inline int at76_get_hw_cfg_intersil(struct usb_device *udev, | |
601 | union at76_hwcfg *buf, int buf_size) | |
602 | { | |
603 | return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, | |
604 | USB_TYPE_VENDOR | USB_DIR_IN | | |
605 | USB_RECIP_INTERFACE, 0x0902, 0, | |
606 | buf, buf_size, USB_CTRL_GET_TIMEOUT); | |
607 | } | |
608 | ||
609 | /* Get the hardware configuration for the adapter and put it to the appropriate | |
610 | * fields of 'priv' (the GetHWConfig request and interpretation of the result | |
611 | * depends on the board type) */ | |
612 | static int at76_get_hw_config(struct at76_priv *priv) | |
613 | { | |
614 | int ret; | |
615 | union at76_hwcfg *hwcfg = kmalloc(sizeof(*hwcfg), GFP_KERNEL); | |
616 | ||
617 | if (!hwcfg) | |
618 | return -ENOMEM; | |
619 | ||
620 | if (at76_is_intersil(priv->board_type)) { | |
621 | ret = at76_get_hw_cfg_intersil(priv->udev, hwcfg, | |
622 | sizeof(hwcfg->i)); | |
623 | if (ret < 0) | |
624 | goto exit; | |
625 | memcpy(priv->mac_addr, hwcfg->i.mac_addr, ETH_ALEN); | |
626 | priv->regulatory_domain = hwcfg->i.regulatory_domain; | |
627 | } else if (at76_is_503rfmd(priv->board_type)) { | |
628 | ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r3)); | |
629 | if (ret < 0) | |
630 | goto exit; | |
631 | memcpy(priv->mac_addr, hwcfg->r3.mac_addr, ETH_ALEN); | |
632 | priv->regulatory_domain = hwcfg->r3.regulatory_domain; | |
633 | } else { | |
634 | ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r5)); | |
635 | if (ret < 0) | |
636 | goto exit; | |
637 | memcpy(priv->mac_addr, hwcfg->r5.mac_addr, ETH_ALEN); | |
638 | priv->regulatory_domain = hwcfg->r5.regulatory_domain; | |
639 | } | |
640 | ||
641 | exit: | |
642 | kfree(hwcfg); | |
643 | if (ret < 0) | |
5db55844 | 644 | wiphy_err(priv->hw->wiphy, "cannot get HW Config (error %d)\n", |
c96c31e4 | 645 | ret); |
1264b951 KV |
646 | |
647 | return ret; | |
648 | } | |
649 | ||
650 | static struct reg_domain const *at76_get_reg_domain(u16 code) | |
651 | { | |
652 | int i; | |
653 | static struct reg_domain const fd_tab[] = { | |
654 | { 0x10, "FCC (USA)", 0x7ff }, /* ch 1-11 */ | |
655 | { 0x20, "IC (Canada)", 0x7ff }, /* ch 1-11 */ | |
656 | { 0x30, "ETSI (most of Europe)", 0x1fff }, /* ch 1-13 */ | |
657 | { 0x31, "Spain", 0x600 }, /* ch 10-11 */ | |
658 | { 0x32, "France", 0x1e00 }, /* ch 10-13 */ | |
659 | { 0x40, "MKK (Japan)", 0x2000 }, /* ch 14 */ | |
660 | { 0x41, "MKK1 (Japan)", 0x3fff }, /* ch 1-14 */ | |
661 | { 0x50, "Israel", 0x3fc }, /* ch 3-9 */ | |
662 | { 0x00, "<unknown>", 0xffffffff } /* ch 1-32 */ | |
663 | }; | |
664 | ||
665 | /* Last entry is fallback for unknown domain code */ | |
666 | for (i = 0; i < ARRAY_SIZE(fd_tab) - 1; i++) | |
667 | if (code == fd_tab[i].code) | |
668 | break; | |
669 | ||
670 | return &fd_tab[i]; | |
671 | } | |
672 | ||
673 | static inline int at76_get_mib(struct usb_device *udev, u16 mib, void *buf, | |
674 | int buf_size) | |
675 | { | |
676 | int ret; | |
677 | ||
678 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33, | |
679 | USB_TYPE_VENDOR | USB_DIR_IN | | |
680 | USB_RECIP_INTERFACE, mib << 8, 0, buf, buf_size, | |
681 | USB_CTRL_GET_TIMEOUT); | |
682 | if (ret >= 0 && ret != buf_size) | |
683 | return -EIO; | |
684 | return ret; | |
685 | } | |
686 | ||
687 | /* Return positive number for status, negative for an error */ | |
688 | static inline int at76_get_cmd_status(struct usb_device *udev, u8 cmd) | |
689 | { | |
5a2137dd | 690 | u8 *stat_buf; |
1264b951 KV |
691 | int ret; |
692 | ||
5a2137dd JA |
693 | stat_buf = kmalloc(40, GFP_NOIO); |
694 | if (!stat_buf) | |
695 | return -ENOMEM; | |
696 | ||
1264b951 | 697 | ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x22, |
5a2137dd JA |
698 | USB_TYPE_VENDOR | USB_DIR_IN | |
699 | USB_RECIP_INTERFACE, cmd, 0, stat_buf, | |
700 | 40, USB_CTRL_GET_TIMEOUT); | |
701 | if (ret >= 0) | |
702 | ret = stat_buf[5]; | |
703 | kfree(stat_buf); | |
1264b951 | 704 | |
5a2137dd | 705 | return ret; |
1264b951 KV |
706 | } |
707 | ||
708 | #define MAKE_CMD_CASE(c) case (c): return #c | |
1264b951 KV |
709 | static const char *at76_get_cmd_string(u8 cmd_status) |
710 | { | |
711 | switch (cmd_status) { | |
712 | MAKE_CMD_CASE(CMD_SET_MIB); | |
713 | MAKE_CMD_CASE(CMD_GET_MIB); | |
714 | MAKE_CMD_CASE(CMD_SCAN); | |
715 | MAKE_CMD_CASE(CMD_JOIN); | |
716 | MAKE_CMD_CASE(CMD_START_IBSS); | |
717 | MAKE_CMD_CASE(CMD_RADIO_ON); | |
718 | MAKE_CMD_CASE(CMD_RADIO_OFF); | |
719 | MAKE_CMD_CASE(CMD_STARTUP); | |
720 | } | |
721 | ||
722 | return "UNKNOWN"; | |
723 | } | |
724 | ||
5a2137dd | 725 | static int at76_set_card_command(struct usb_device *udev, u8 cmd, void *buf, |
1264b951 KV |
726 | int buf_size) |
727 | { | |
728 | int ret; | |
729 | struct at76_command *cmd_buf = kmalloc(sizeof(struct at76_command) + | |
730 | buf_size, GFP_KERNEL); | |
731 | ||
732 | if (!cmd_buf) | |
733 | return -ENOMEM; | |
734 | ||
735 | cmd_buf->cmd = cmd; | |
736 | cmd_buf->reserved = 0; | |
737 | cmd_buf->size = cpu_to_le16(buf_size); | |
738 | memcpy(cmd_buf->data, buf, buf_size); | |
739 | ||
740 | at76_dbg_dump(DBG_CMD, cmd_buf, sizeof(struct at76_command) + buf_size, | |
741 | "issuing command %s (0x%02x)", | |
742 | at76_get_cmd_string(cmd), cmd); | |
743 | ||
744 | ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e, | |
745 | USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE, | |
746 | 0, 0, cmd_buf, | |
747 | sizeof(struct at76_command) + buf_size, | |
748 | USB_CTRL_GET_TIMEOUT); | |
749 | kfree(cmd_buf); | |
750 | return ret; | |
751 | } | |
752 | ||
753 | #define MAKE_CMD_STATUS_CASE(c) case (c): return #c | |
754 | static const char *at76_get_cmd_status_string(u8 cmd_status) | |
755 | { | |
756 | switch (cmd_status) { | |
757 | MAKE_CMD_STATUS_CASE(CMD_STATUS_IDLE); | |
758 | MAKE_CMD_STATUS_CASE(CMD_STATUS_COMPLETE); | |
759 | MAKE_CMD_STATUS_CASE(CMD_STATUS_UNKNOWN); | |
760 | MAKE_CMD_STATUS_CASE(CMD_STATUS_INVALID_PARAMETER); | |
761 | MAKE_CMD_STATUS_CASE(CMD_STATUS_FUNCTION_NOT_SUPPORTED); | |
762 | MAKE_CMD_STATUS_CASE(CMD_STATUS_TIME_OUT); | |
763 | MAKE_CMD_STATUS_CASE(CMD_STATUS_IN_PROGRESS); | |
764 | MAKE_CMD_STATUS_CASE(CMD_STATUS_HOST_FAILURE); | |
765 | MAKE_CMD_STATUS_CASE(CMD_STATUS_SCAN_FAILED); | |
766 | } | |
767 | ||
768 | return "UNKNOWN"; | |
769 | } | |
770 | ||
771 | /* Wait until the command is completed */ | |
772 | static int at76_wait_completion(struct at76_priv *priv, int cmd) | |
773 | { | |
774 | int status = 0; | |
775 | unsigned long timeout = jiffies + CMD_COMPLETION_TIMEOUT; | |
776 | ||
777 | do { | |
778 | status = at76_get_cmd_status(priv->udev, cmd); | |
779 | if (status < 0) { | |
c96c31e4 JP |
780 | wiphy_err(priv->hw->wiphy, |
781 | "at76_get_cmd_status failed: %d\n", | |
782 | status); | |
1264b951 KV |
783 | break; |
784 | } | |
785 | ||
786 | at76_dbg(DBG_WAIT_COMPLETE, | |
787 | "%s: Waiting on cmd %d, status = %d (%s)", | |
788 | wiphy_name(priv->hw->wiphy), cmd, status, | |
789 | at76_get_cmd_status_string(status)); | |
790 | ||
791 | if (status != CMD_STATUS_IN_PROGRESS | |
792 | && status != CMD_STATUS_IDLE) | |
793 | break; | |
794 | ||
795 | schedule_timeout_interruptible(HZ / 10); /* 100 ms */ | |
796 | if (time_after(jiffies, timeout)) { | |
c96c31e4 JP |
797 | wiphy_err(priv->hw->wiphy, |
798 | "completion timeout for command %d\n", cmd); | |
1264b951 KV |
799 | status = -ETIMEDOUT; |
800 | break; | |
801 | } | |
802 | } while (1); | |
803 | ||
804 | return status; | |
805 | } | |
806 | ||
807 | static int at76_set_mib(struct at76_priv *priv, struct set_mib_buffer *buf) | |
808 | { | |
809 | int ret; | |
810 | ||
811 | ret = at76_set_card_command(priv->udev, CMD_SET_MIB, buf, | |
812 | offsetof(struct set_mib_buffer, | |
813 | data) + buf->size); | |
814 | if (ret < 0) | |
815 | return ret; | |
816 | ||
817 | ret = at76_wait_completion(priv, CMD_SET_MIB); | |
818 | if (ret != CMD_STATUS_COMPLETE) { | |
c96c31e4 JP |
819 | wiphy_info(priv->hw->wiphy, |
820 | "set_mib: at76_wait_completion failed with %d\n", | |
821 | ret); | |
1264b951 KV |
822 | ret = -EIO; |
823 | } | |
824 | ||
825 | return ret; | |
826 | } | |
827 | ||
828 | /* Return < 0 on error, == 0 if no command sent, == 1 if cmd sent */ | |
829 | static int at76_set_radio(struct at76_priv *priv, int enable) | |
830 | { | |
831 | int ret; | |
832 | int cmd; | |
833 | ||
834 | if (priv->radio_on == enable) | |
835 | return 0; | |
836 | ||
837 | cmd = enable ? CMD_RADIO_ON : CMD_RADIO_OFF; | |
838 | ||
839 | ret = at76_set_card_command(priv->udev, cmd, NULL, 0); | |
840 | if (ret < 0) | |
c96c31e4 JP |
841 | wiphy_err(priv->hw->wiphy, |
842 | "at76_set_card_command(%d) failed: %d\n", cmd, ret); | |
1264b951 KV |
843 | else |
844 | ret = 1; | |
845 | ||
846 | priv->radio_on = enable; | |
847 | return ret; | |
848 | } | |
849 | ||
850 | /* Set current power save mode (AT76_PM_OFF/AT76_PM_ON/AT76_PM_SMART) */ | |
851 | static int at76_set_pm_mode(struct at76_priv *priv) | |
852 | { | |
853 | int ret = 0; | |
854 | ||
855 | priv->mib_buf.type = MIB_MAC_MGMT; | |
856 | priv->mib_buf.size = 1; | |
857 | priv->mib_buf.index = offsetof(struct mib_mac_mgmt, power_mgmt_mode); | |
858 | priv->mib_buf.data.byte = priv->pm_mode; | |
859 | ||
860 | ret = at76_set_mib(priv, &priv->mib_buf); | |
861 | if (ret < 0) | |
c96c31e4 JP |
862 | wiphy_err(priv->hw->wiphy, "set_mib (pm_mode) failed: %d\n", |
863 | ret); | |
1264b951 KV |
864 | |
865 | return ret; | |
866 | } | |
867 | ||
868 | static int at76_set_preamble(struct at76_priv *priv, u8 type) | |
869 | { | |
870 | int ret = 0; | |
871 | ||
872 | priv->mib_buf.type = MIB_LOCAL; | |
873 | priv->mib_buf.size = 1; | |
874 | priv->mib_buf.index = offsetof(struct mib_local, preamble_type); | |
875 | priv->mib_buf.data.byte = type; | |
876 | ||
877 | ret = at76_set_mib(priv, &priv->mib_buf); | |
878 | if (ret < 0) | |
c96c31e4 JP |
879 | wiphy_err(priv->hw->wiphy, "set_mib (preamble) failed: %d\n", |
880 | ret); | |
1264b951 KV |
881 | |
882 | return ret; | |
883 | } | |
884 | ||
885 | static int at76_set_frag(struct at76_priv *priv, u16 size) | |
886 | { | |
887 | int ret = 0; | |
888 | ||
889 | priv->mib_buf.type = MIB_MAC; | |
890 | priv->mib_buf.size = 2; | |
891 | priv->mib_buf.index = offsetof(struct mib_mac, frag_threshold); | |
892 | priv->mib_buf.data.word = cpu_to_le16(size); | |
893 | ||
894 | ret = at76_set_mib(priv, &priv->mib_buf); | |
895 | if (ret < 0) | |
c96c31e4 JP |
896 | wiphy_err(priv->hw->wiphy, |
897 | "set_mib (frag threshold) failed: %d\n", ret); | |
1264b951 KV |
898 | |
899 | return ret; | |
900 | } | |
901 | ||
902 | static int at76_set_rts(struct at76_priv *priv, u16 size) | |
903 | { | |
904 | int ret = 0; | |
905 | ||
906 | priv->mib_buf.type = MIB_MAC; | |
907 | priv->mib_buf.size = 2; | |
908 | priv->mib_buf.index = offsetof(struct mib_mac, rts_threshold); | |
909 | priv->mib_buf.data.word = cpu_to_le16(size); | |
910 | ||
911 | ret = at76_set_mib(priv, &priv->mib_buf); | |
912 | if (ret < 0) | |
c96c31e4 | 913 | wiphy_err(priv->hw->wiphy, "set_mib (rts) failed: %d\n", ret); |
1264b951 KV |
914 | |
915 | return ret; | |
916 | } | |
917 | ||
918 | static int at76_set_autorate_fallback(struct at76_priv *priv, int onoff) | |
919 | { | |
920 | int ret = 0; | |
921 | ||
922 | priv->mib_buf.type = MIB_LOCAL; | |
923 | priv->mib_buf.size = 1; | |
924 | priv->mib_buf.index = offsetof(struct mib_local, txautorate_fallback); | |
925 | priv->mib_buf.data.byte = onoff; | |
926 | ||
927 | ret = at76_set_mib(priv, &priv->mib_buf); | |
928 | if (ret < 0) | |
c96c31e4 JP |
929 | wiphy_err(priv->hw->wiphy, |
930 | "set_mib (autorate fallback) failed: %d\n", ret); | |
1264b951 KV |
931 | |
932 | return ret; | |
933 | } | |
934 | ||
935 | static void at76_dump_mib_mac_addr(struct at76_priv *priv) | |
936 | { | |
937 | int i; | |
938 | int ret; | |
939 | struct mib_mac_addr *m = kmalloc(sizeof(struct mib_mac_addr), | |
940 | GFP_KERNEL); | |
941 | ||
942 | if (!m) | |
943 | return; | |
944 | ||
945 | ret = at76_get_mib(priv->udev, MIB_MAC_ADDR, m, | |
946 | sizeof(struct mib_mac_addr)); | |
947 | if (ret < 0) { | |
c96c31e4 | 948 | wiphy_err(priv->hw->wiphy, |
5db55844 | 949 | "at76_get_mib (MAC_ADDR) failed: %d\n", ret); |
1264b951 KV |
950 | goto exit; |
951 | } | |
952 | ||
a6ef92ad | 953 | at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: mac_addr %pM res 0x%x 0x%x", |
1264b951 | 954 | wiphy_name(priv->hw->wiphy), |
a6ef92ad | 955 | m->mac_addr, m->res[0], m->res[1]); |
1264b951 | 956 | for (i = 0; i < ARRAY_SIZE(m->group_addr); i++) |
a6ef92ad | 957 | at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: group addr %d: %pM, " |
1264b951 | 958 | "status %d", wiphy_name(priv->hw->wiphy), i, |
a6ef92ad | 959 | m->group_addr[i], m->group_addr_status[i]); |
1264b951 KV |
960 | exit: |
961 | kfree(m); | |
962 | } | |
963 | ||
964 | static void at76_dump_mib_mac_wep(struct at76_priv *priv) | |
965 | { | |
966 | int i; | |
967 | int ret; | |
968 | int key_len; | |
969 | struct mib_mac_wep *m = kmalloc(sizeof(struct mib_mac_wep), GFP_KERNEL); | |
970 | ||
971 | if (!m) | |
972 | return; | |
973 | ||
974 | ret = at76_get_mib(priv->udev, MIB_MAC_WEP, m, | |
975 | sizeof(struct mib_mac_wep)); | |
976 | if (ret < 0) { | |
c96c31e4 | 977 | wiphy_err(priv->hw->wiphy, |
5db55844 | 978 | "at76_get_mib (MAC_WEP) failed: %d\n", ret); |
1264b951 KV |
979 | goto exit; |
980 | } | |
981 | ||
982 | at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: priv_invoked %u def_key_id %u " | |
983 | "key_len %u excl_unencr %u wep_icv_err %u wep_excluded %u " | |
984 | "encr_level %u key %d", wiphy_name(priv->hw->wiphy), | |
985 | m->privacy_invoked, m->wep_default_key_id, | |
986 | m->wep_key_mapping_len, m->exclude_unencrypted, | |
987 | le32_to_cpu(m->wep_icv_error_count), | |
988 | le32_to_cpu(m->wep_excluded_count), m->encryption_level, | |
989 | m->wep_default_key_id); | |
990 | ||
991 | key_len = (m->encryption_level == 1) ? | |
992 | WEP_SMALL_KEY_LEN : WEP_LARGE_KEY_LEN; | |
993 | ||
994 | for (i = 0; i < WEP_KEYS; i++) | |
44afb60f | 995 | at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: key %d: %*phD", |
1264b951 | 996 | wiphy_name(priv->hw->wiphy), i, |
44afb60f | 997 | key_len, m->wep_default_keyvalue[i]); |
1264b951 KV |
998 | exit: |
999 | kfree(m); | |
1000 | } | |
1001 | ||
1002 | static void at76_dump_mib_mac_mgmt(struct at76_priv *priv) | |
1003 | { | |
1004 | int ret; | |
1005 | struct mib_mac_mgmt *m = kmalloc(sizeof(struct mib_mac_mgmt), | |
1006 | GFP_KERNEL); | |
1007 | ||
1008 | if (!m) | |
1009 | return; | |
1010 | ||
1011 | ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, m, | |
1012 | sizeof(struct mib_mac_mgmt)); | |
1013 | if (ret < 0) { | |
c96c31e4 | 1014 | wiphy_err(priv->hw->wiphy, |
5db55844 | 1015 | "at76_get_mib (MAC_MGMT) failed: %d\n", ret); |
1264b951 KV |
1016 | goto exit; |
1017 | } | |
1018 | ||
1019 | at76_dbg(DBG_MIB, "%s: MIB MAC_MGMT: beacon_period %d CFP_max_duration " | |
1020 | "%d medium_occupancy_limit %d station_id 0x%x ATIM_window %d " | |
1021 | "CFP_mode %d privacy_opt_impl %d DTIM_period %d CFP_period %d " | |
44afb60f | 1022 | "current_bssid %pM current_essid %*phD current_bss_type %d " |
1264b951 KV |
1023 | "pm_mode %d ibss_change %d res %d " |
1024 | "multi_domain_capability_implemented %d " | |
1025 | "international_roaming %d country_string %.3s", | |
1026 | wiphy_name(priv->hw->wiphy), le16_to_cpu(m->beacon_period), | |
1027 | le16_to_cpu(m->CFP_max_duration), | |
1028 | le16_to_cpu(m->medium_occupancy_limit), | |
1029 | le16_to_cpu(m->station_id), le16_to_cpu(m->ATIM_window), | |
1030 | m->CFP_mode, m->privacy_option_implemented, m->DTIM_period, | |
a6ef92ad | 1031 | m->CFP_period, m->current_bssid, |
44afb60f | 1032 | IW_ESSID_MAX_SIZE, m->current_essid, |
1264b951 KV |
1033 | m->current_bss_type, m->power_mgmt_mode, m->ibss_change, |
1034 | m->res, m->multi_domain_capability_implemented, | |
1035 | m->multi_domain_capability_enabled, m->country_string); | |
1036 | exit: | |
1037 | kfree(m); | |
1038 | } | |
1039 | ||
1040 | static void at76_dump_mib_mac(struct at76_priv *priv) | |
1041 | { | |
1042 | int ret; | |
1043 | struct mib_mac *m = kmalloc(sizeof(struct mib_mac), GFP_KERNEL); | |
1044 | ||
1045 | if (!m) | |
1046 | return; | |
1047 | ||
1048 | ret = at76_get_mib(priv->udev, MIB_MAC, m, sizeof(struct mib_mac)); | |
1049 | if (ret < 0) { | |
c96c31e4 | 1050 | wiphy_err(priv->hw->wiphy, |
5db55844 | 1051 | "at76_get_mib (MAC) failed: %d\n", ret); |
1264b951 KV |
1052 | goto exit; |
1053 | } | |
1054 | ||
1055 | at76_dbg(DBG_MIB, "%s: MIB MAC: max_tx_msdu_lifetime %d " | |
1056 | "max_rx_lifetime %d frag_threshold %d rts_threshold %d " | |
1057 | "cwmin %d cwmax %d short_retry_time %d long_retry_time %d " | |
1058 | "scan_type %d scan_channel %d probe_delay %u " | |
1059 | "min_channel_time %d max_channel_time %d listen_int %d " | |
44afb60f | 1060 | "desired_ssid %*phD desired_bssid %pM desired_bsstype %d", |
1264b951 KV |
1061 | wiphy_name(priv->hw->wiphy), |
1062 | le32_to_cpu(m->max_tx_msdu_lifetime), | |
1063 | le32_to_cpu(m->max_rx_lifetime), | |
1064 | le16_to_cpu(m->frag_threshold), le16_to_cpu(m->rts_threshold), | |
1065 | le16_to_cpu(m->cwmin), le16_to_cpu(m->cwmax), | |
1066 | m->short_retry_time, m->long_retry_time, m->scan_type, | |
1067 | m->scan_channel, le16_to_cpu(m->probe_delay), | |
1068 | le16_to_cpu(m->min_channel_time), | |
1069 | le16_to_cpu(m->max_channel_time), | |
1070 | le16_to_cpu(m->listen_interval), | |
44afb60f | 1071 | IW_ESSID_MAX_SIZE, m->desired_ssid, |
a6ef92ad | 1072 | m->desired_bssid, m->desired_bsstype); |
1264b951 KV |
1073 | exit: |
1074 | kfree(m); | |
1075 | } | |
1076 | ||
1077 | static void at76_dump_mib_phy(struct at76_priv *priv) | |
1078 | { | |
1079 | int ret; | |
1080 | struct mib_phy *m = kmalloc(sizeof(struct mib_phy), GFP_KERNEL); | |
1081 | ||
1082 | if (!m) | |
1083 | return; | |
1084 | ||
1085 | ret = at76_get_mib(priv->udev, MIB_PHY, m, sizeof(struct mib_phy)); | |
1086 | if (ret < 0) { | |
c96c31e4 | 1087 | wiphy_err(priv->hw->wiphy, |
5db55844 | 1088 | "at76_get_mib (PHY) failed: %d\n", ret); |
1264b951 KV |
1089 | goto exit; |
1090 | } | |
1091 | ||
1092 | at76_dbg(DBG_MIB, "%s: MIB PHY: ed_threshold %d slot_time %d " | |
1093 | "sifs_time %d preamble_length %d plcp_header_length %d " | |
1094 | "mpdu_max_length %d cca_mode_supported %d operation_rate_set " | |
1095 | "0x%x 0x%x 0x%x 0x%x channel_id %d current_cca_mode %d " | |
1096 | "phy_type %d current_reg_domain %d", | |
1097 | wiphy_name(priv->hw->wiphy), le32_to_cpu(m->ed_threshold), | |
1098 | le16_to_cpu(m->slot_time), le16_to_cpu(m->sifs_time), | |
1099 | le16_to_cpu(m->preamble_length), | |
1100 | le16_to_cpu(m->plcp_header_length), | |
1101 | le16_to_cpu(m->mpdu_max_length), | |
1102 | le16_to_cpu(m->cca_mode_supported), m->operation_rate_set[0], | |
1103 | m->operation_rate_set[1], m->operation_rate_set[2], | |
1104 | m->operation_rate_set[3], m->channel_id, m->current_cca_mode, | |
1105 | m->phy_type, m->current_reg_domain); | |
1106 | exit: | |
1107 | kfree(m); | |
1108 | } | |
1109 | ||
1110 | static void at76_dump_mib_local(struct at76_priv *priv) | |
1111 | { | |
1112 | int ret; | |
62c50543 | 1113 | struct mib_local *m = kmalloc(sizeof(*m), GFP_KERNEL); |
1264b951 KV |
1114 | |
1115 | if (!m) | |
1116 | return; | |
1117 | ||
62c50543 | 1118 | ret = at76_get_mib(priv->udev, MIB_LOCAL, m, sizeof(*m)); |
1264b951 | 1119 | if (ret < 0) { |
c96c31e4 | 1120 | wiphy_err(priv->hw->wiphy, |
5db55844 | 1121 | "at76_get_mib (LOCAL) failed: %d\n", ret); |
1264b951 KV |
1122 | goto exit; |
1123 | } | |
1124 | ||
1125 | at76_dbg(DBG_MIB, "%s: MIB LOCAL: beacon_enable %d " | |
1126 | "txautorate_fallback %d ssid_size %d promiscuous_mode %d " | |
1127 | "preamble_type %d", wiphy_name(priv->hw->wiphy), | |
1128 | m->beacon_enable, | |
1129 | m->txautorate_fallback, m->ssid_size, m->promiscuous_mode, | |
1130 | m->preamble_type); | |
1131 | exit: | |
1132 | kfree(m); | |
1133 | } | |
1134 | ||
1135 | static void at76_dump_mib_mdomain(struct at76_priv *priv) | |
1136 | { | |
1137 | int ret; | |
1138 | struct mib_mdomain *m = kmalloc(sizeof(struct mib_mdomain), GFP_KERNEL); | |
1139 | ||
1140 | if (!m) | |
1141 | return; | |
1142 | ||
1143 | ret = at76_get_mib(priv->udev, MIB_MDOMAIN, m, | |
1144 | sizeof(struct mib_mdomain)); | |
1145 | if (ret < 0) { | |
c96c31e4 | 1146 | wiphy_err(priv->hw->wiphy, |
5db55844 | 1147 | "at76_get_mib (MDOMAIN) failed: %d\n", ret); |
1264b951 KV |
1148 | goto exit; |
1149 | } | |
1150 | ||
44afb60f | 1151 | at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: channel_list %*phD", |
1264b951 | 1152 | wiphy_name(priv->hw->wiphy), |
44afb60f | 1153 | (int)sizeof(m->channel_list), m->channel_list); |
1264b951 | 1154 | |
44afb60f | 1155 | at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: tx_powerlevel %*phD", |
1264b951 | 1156 | wiphy_name(priv->hw->wiphy), |
44afb60f | 1157 | (int)sizeof(m->tx_powerlevel), m->tx_powerlevel); |
1264b951 KV |
1158 | exit: |
1159 | kfree(m); | |
1160 | } | |
1161 | ||
1162 | /* Enable monitor mode */ | |
1163 | static int at76_start_monitor(struct at76_priv *priv) | |
1164 | { | |
1165 | struct at76_req_scan scan; | |
1166 | int ret; | |
1167 | ||
1168 | memset(&scan, 0, sizeof(struct at76_req_scan)); | |
93803b33 | 1169 | eth_broadcast_addr(scan.bssid); |
1264b951 KV |
1170 | |
1171 | scan.channel = priv->channel; | |
1172 | scan.scan_type = SCAN_TYPE_PASSIVE; | |
1173 | scan.international_scan = 0; | |
13b409cc JA |
1174 | scan.min_channel_time = cpu_to_le16(priv->scan_min_time); |
1175 | scan.max_channel_time = cpu_to_le16(priv->scan_max_time); | |
1176 | scan.probe_delay = cpu_to_le16(0); | |
1264b951 KV |
1177 | |
1178 | ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan)); | |
1179 | if (ret >= 0) | |
1180 | ret = at76_get_cmd_status(priv->udev, CMD_SCAN); | |
1181 | ||
1182 | return ret; | |
1183 | } | |
1184 | ||
1185 | /* Calculate padding from txbuf->wlength (which excludes the USB TX header), | |
1186 | likely to compensate a flaw in the AT76C503A USB part ... */ | |
1187 | static inline int at76_calc_padding(int wlen) | |
1188 | { | |
1189 | /* add the USB TX header */ | |
1190 | wlen += AT76_TX_HDRLEN; | |
1191 | ||
1192 | wlen = wlen % 64; | |
1193 | ||
1194 | if (wlen < 50) | |
1195 | return 50 - wlen; | |
1196 | ||
1197 | if (wlen >= 61) | |
1198 | return 64 + 50 - wlen; | |
1199 | ||
1200 | return 0; | |
1201 | } | |
1202 | ||
1203 | static void at76_rx_callback(struct urb *urb) | |
1204 | { | |
1205 | struct at76_priv *priv = urb->context; | |
1206 | ||
1207 | priv->rx_tasklet.data = (unsigned long)urb; | |
1208 | tasklet_schedule(&priv->rx_tasklet); | |
1264b951 KV |
1209 | } |
1210 | ||
1211 | static int at76_submit_rx_urb(struct at76_priv *priv) | |
1212 | { | |
1213 | int ret; | |
1214 | int size; | |
1215 | struct sk_buff *skb = priv->rx_skb; | |
1216 | ||
1217 | if (!priv->rx_urb) { | |
5db55844 | 1218 | wiphy_err(priv->hw->wiphy, "%s: priv->rx_urb is NULL\n", |
c96c31e4 | 1219 | __func__); |
1264b951 KV |
1220 | return -EFAULT; |
1221 | } | |
1222 | ||
1223 | if (!skb) { | |
1224 | skb = dev_alloc_skb(sizeof(struct at76_rx_buffer)); | |
1225 | if (!skb) { | |
c96c31e4 JP |
1226 | wiphy_err(priv->hw->wiphy, |
1227 | "cannot allocate rx skbuff\n"); | |
1264b951 KV |
1228 | ret = -ENOMEM; |
1229 | goto exit; | |
1230 | } | |
1231 | priv->rx_skb = skb; | |
1232 | } else { | |
1233 | skb_push(skb, skb_headroom(skb)); | |
1234 | skb_trim(skb, 0); | |
1235 | } | |
1236 | ||
1237 | size = skb_tailroom(skb); | |
1238 | usb_fill_bulk_urb(priv->rx_urb, priv->udev, priv->rx_pipe, | |
1239 | skb_put(skb, size), size, at76_rx_callback, priv); | |
1240 | ret = usb_submit_urb(priv->rx_urb, GFP_ATOMIC); | |
1241 | if (ret < 0) { | |
1242 | if (ret == -ENODEV) | |
1243 | at76_dbg(DBG_DEVSTART, | |
1244 | "usb_submit_urb returned -ENODEV"); | |
1245 | else | |
c96c31e4 JP |
1246 | wiphy_err(priv->hw->wiphy, |
1247 | "rx, usb_submit_urb failed: %d\n", ret); | |
1264b951 KV |
1248 | } |
1249 | ||
1250 | exit: | |
1251 | if (ret < 0 && ret != -ENODEV) | |
c96c31e4 JP |
1252 | wiphy_err(priv->hw->wiphy, |
1253 | "cannot submit rx urb - please unload the driver and/or power cycle the device\n"); | |
1264b951 KV |
1254 | |
1255 | return ret; | |
1256 | } | |
1257 | ||
1258 | /* Download external firmware */ | |
1259 | static int at76_load_external_fw(struct usb_device *udev, struct fwentry *fwe) | |
1260 | { | |
1261 | int ret; | |
1262 | int op_mode; | |
1263 | int blockno = 0; | |
1264 | int bsize; | |
1265 | u8 *block; | |
1266 | u8 *buf = fwe->extfw; | |
1267 | int size = fwe->extfw_size; | |
1268 | ||
1269 | if (!buf || !size) | |
1270 | return -ENOENT; | |
1271 | ||
1272 | op_mode = at76_get_op_mode(udev); | |
1273 | at76_dbg(DBG_DEVSTART, "opmode %d", op_mode); | |
1274 | ||
1275 | if (op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) { | |
6a4b09f8 | 1276 | dev_err(&udev->dev, "unexpected opmode %d\n", op_mode); |
1264b951 KV |
1277 | return -EINVAL; |
1278 | } | |
1279 | ||
1280 | block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL); | |
1281 | if (!block) | |
1282 | return -ENOMEM; | |
1283 | ||
1284 | at76_dbg(DBG_DEVSTART, "downloading external firmware"); | |
1285 | ||
1286 | /* for fw >= 0.100, the device needs an extra empty block */ | |
1287 | do { | |
1288 | bsize = min_t(int, size, FW_BLOCK_SIZE); | |
1289 | memcpy(block, buf, bsize); | |
1290 | at76_dbg(DBG_DEVSTART, | |
1291 | "ext fw, size left = %5d, bsize = %4d, blockno = %2d", | |
1292 | size, bsize, blockno); | |
1293 | ret = at76_load_ext_fw_block(udev, blockno, block, bsize); | |
1294 | if (ret != bsize) { | |
6a4b09f8 JP |
1295 | dev_err(&udev->dev, |
1296 | "loading %dth firmware block failed: %d\n", | |
1297 | blockno, ret); | |
174beab7 | 1298 | ret = -EIO; |
1264b951 KV |
1299 | goto exit; |
1300 | } | |
1301 | buf += bsize; | |
1302 | size -= bsize; | |
1303 | blockno++; | |
1304 | } while (bsize > 0); | |
1305 | ||
1306 | if (at76_is_505a(fwe->board_type)) { | |
1307 | at76_dbg(DBG_DEVSTART, "200 ms delay for 505a"); | |
1308 | schedule_timeout_interruptible(HZ / 5 + 1); | |
1309 | } | |
1310 | ||
1311 | exit: | |
1312 | kfree(block); | |
1313 | if (ret < 0) | |
6a4b09f8 JP |
1314 | dev_err(&udev->dev, |
1315 | "downloading external firmware failed: %d\n", ret); | |
1264b951 KV |
1316 | return ret; |
1317 | } | |
1318 | ||
1319 | /* Download internal firmware */ | |
1320 | static int at76_load_internal_fw(struct usb_device *udev, struct fwentry *fwe) | |
1321 | { | |
1322 | int ret; | |
1323 | int need_remap = !at76_is_505a(fwe->board_type); | |
1324 | ||
1325 | ret = at76_usbdfu_download(udev, fwe->intfw, fwe->intfw_size, | |
1326 | need_remap ? 0 : 2 * HZ); | |
1327 | ||
1328 | if (ret < 0) { | |
6a4b09f8 JP |
1329 | dev_err(&udev->dev, |
1330 | "downloading internal fw failed with %d\n", ret); | |
1264b951 KV |
1331 | goto exit; |
1332 | } | |
1333 | ||
1334 | at76_dbg(DBG_DEVSTART, "sending REMAP"); | |
1335 | ||
1336 | /* no REMAP for 505A (see SF driver) */ | |
1337 | if (need_remap) { | |
1338 | ret = at76_remap(udev); | |
1339 | if (ret < 0) { | |
6a4b09f8 JP |
1340 | dev_err(&udev->dev, |
1341 | "sending REMAP failed with %d\n", ret); | |
1264b951 KV |
1342 | goto exit; |
1343 | } | |
1344 | } | |
1345 | ||
1346 | at76_dbg(DBG_DEVSTART, "sleeping for 2 seconds"); | |
1347 | schedule_timeout_interruptible(2 * HZ + 1); | |
1348 | usb_reset_device(udev); | |
1349 | ||
1350 | exit: | |
1351 | return ret; | |
1352 | } | |
1353 | ||
1354 | static int at76_startup_device(struct at76_priv *priv) | |
1355 | { | |
1356 | struct at76_card_config *ccfg = &priv->card_config; | |
1357 | int ret; | |
1358 | ||
1359 | at76_dbg(DBG_PARAMS, | |
44afb60f | 1360 | "%s param: ssid %.*s (%*phD) mode %s ch %d wep %s key %d " |
1264b951 | 1361 | "keylen %d", wiphy_name(priv->hw->wiphy), priv->essid_size, |
44afb60f | 1362 | priv->essid, IW_ESSID_MAX_SIZE, priv->essid, |
1264b951 KV |
1363 | priv->iw_mode == IW_MODE_ADHOC ? "adhoc" : "infra", |
1364 | priv->channel, priv->wep_enabled ? "enabled" : "disabled", | |
1365 | priv->wep_key_id, priv->wep_keys_len[priv->wep_key_id]); | |
1366 | at76_dbg(DBG_PARAMS, | |
1367 | "%s param: preamble %s rts %d retry %d frag %d " | |
1368 | "txrate %s auth_mode %d", wiphy_name(priv->hw->wiphy), | |
1369 | preambles[priv->preamble_type], priv->rts_threshold, | |
1370 | priv->short_retry_limit, priv->frag_threshold, | |
1371 | priv->txrate == TX_RATE_1MBIT ? "1MBit" : priv->txrate == | |
1372 | TX_RATE_2MBIT ? "2MBit" : priv->txrate == | |
1373 | TX_RATE_5_5MBIT ? "5.5MBit" : priv->txrate == | |
1374 | TX_RATE_11MBIT ? "11MBit" : priv->txrate == | |
1375 | TX_RATE_AUTO ? "auto" : "<invalid>", priv->auth_mode); | |
1376 | at76_dbg(DBG_PARAMS, | |
1377 | "%s param: pm_mode %d pm_period %d auth_mode %s " | |
1378 | "scan_times %d %d scan_mode %s", | |
1379 | wiphy_name(priv->hw->wiphy), priv->pm_mode, priv->pm_period, | |
1380 | priv->auth_mode == WLAN_AUTH_OPEN ? "open" : "shared_secret", | |
1381 | priv->scan_min_time, priv->scan_max_time, | |
1382 | priv->scan_mode == SCAN_TYPE_ACTIVE ? "active" : "passive"); | |
1383 | ||
1384 | memset(ccfg, 0, sizeof(struct at76_card_config)); | |
1385 | ccfg->promiscuous_mode = 0; | |
1386 | ccfg->short_retry_limit = priv->short_retry_limit; | |
1387 | ||
1388 | if (priv->wep_enabled) { | |
1389 | if (priv->wep_keys_len[priv->wep_key_id] > WEP_SMALL_KEY_LEN) | |
1390 | ccfg->encryption_type = 2; | |
1391 | else | |
1392 | ccfg->encryption_type = 1; | |
1393 | ||
1394 | /* jal: always exclude unencrypted if WEP is active */ | |
1395 | ccfg->exclude_unencrypted = 1; | |
1396 | } else { | |
1397 | ccfg->exclude_unencrypted = 0; | |
1398 | ccfg->encryption_type = 0; | |
1399 | } | |
1400 | ||
1401 | ccfg->rts_threshold = cpu_to_le16(priv->rts_threshold); | |
1402 | ccfg->fragmentation_threshold = cpu_to_le16(priv->frag_threshold); | |
1403 | ||
1404 | memcpy(ccfg->basic_rate_set, hw_rates, 4); | |
1405 | /* jal: really needed, we do a set_mib for autorate later ??? */ | |
1406 | ccfg->auto_rate_fallback = (priv->txrate == TX_RATE_AUTO ? 1 : 0); | |
1407 | ccfg->channel = priv->channel; | |
1408 | ccfg->privacy_invoked = priv->wep_enabled; | |
1409 | memcpy(ccfg->current_ssid, priv->essid, IW_ESSID_MAX_SIZE); | |
1410 | ccfg->ssid_len = priv->essid_size; | |
1411 | ||
1412 | ccfg->wep_default_key_id = priv->wep_key_id; | |
1413 | memcpy(ccfg->wep_default_key_value, priv->wep_keys, | |
1414 | sizeof(priv->wep_keys)); | |
1415 | ||
1416 | ccfg->short_preamble = priv->preamble_type; | |
1417 | ccfg->beacon_period = cpu_to_le16(priv->beacon_period); | |
1418 | ||
1419 | ret = at76_set_card_command(priv->udev, CMD_STARTUP, &priv->card_config, | |
1420 | sizeof(struct at76_card_config)); | |
1421 | if (ret < 0) { | |
c96c31e4 JP |
1422 | wiphy_err(priv->hw->wiphy, "at76_set_card_command failed: %d\n", |
1423 | ret); | |
1264b951 KV |
1424 | return ret; |
1425 | } | |
1426 | ||
1427 | at76_wait_completion(priv, CMD_STARTUP); | |
1428 | ||
1429 | /* remove BSSID from previous run */ | |
93803b33 | 1430 | eth_zero_addr(priv->bssid); |
1264b951 | 1431 | |
c678de55 AM |
1432 | priv->scanning = false; |
1433 | ||
1264b951 KV |
1434 | if (at76_set_radio(priv, 1) == 1) |
1435 | at76_wait_completion(priv, CMD_RADIO_ON); | |
1436 | ||
1437 | ret = at76_set_preamble(priv, priv->preamble_type); | |
1438 | if (ret < 0) | |
1439 | return ret; | |
1440 | ||
1441 | ret = at76_set_frag(priv, priv->frag_threshold); | |
1442 | if (ret < 0) | |
1443 | return ret; | |
1444 | ||
1445 | ret = at76_set_rts(priv, priv->rts_threshold); | |
1446 | if (ret < 0) | |
1447 | return ret; | |
1448 | ||
1449 | ret = at76_set_autorate_fallback(priv, | |
1450 | priv->txrate == TX_RATE_AUTO ? 1 : 0); | |
1451 | if (ret < 0) | |
1452 | return ret; | |
1453 | ||
1454 | ret = at76_set_pm_mode(priv); | |
1455 | if (ret < 0) | |
1456 | return ret; | |
1457 | ||
1458 | if (at76_debug & DBG_MIB) { | |
1459 | at76_dump_mib_mac(priv); | |
1460 | at76_dump_mib_mac_addr(priv); | |
1461 | at76_dump_mib_mac_mgmt(priv); | |
1462 | at76_dump_mib_mac_wep(priv); | |
1463 | at76_dump_mib_mdomain(priv); | |
1464 | at76_dump_mib_phy(priv); | |
1465 | at76_dump_mib_local(priv); | |
1466 | } | |
1467 | ||
1468 | return 0; | |
1469 | } | |
1470 | ||
1471 | /* Enable or disable promiscuous mode */ | |
1472 | static void at76_work_set_promisc(struct work_struct *work) | |
1473 | { | |
1474 | struct at76_priv *priv = container_of(work, struct at76_priv, | |
1475 | work_set_promisc); | |
1476 | int ret = 0; | |
1477 | ||
1cc198fe JA |
1478 | if (priv->device_unplugged) |
1479 | return; | |
1480 | ||
1264b951 KV |
1481 | mutex_lock(&priv->mtx); |
1482 | ||
1483 | priv->mib_buf.type = MIB_LOCAL; | |
1484 | priv->mib_buf.size = 1; | |
1485 | priv->mib_buf.index = offsetof(struct mib_local, promiscuous_mode); | |
1486 | priv->mib_buf.data.byte = priv->promisc ? 1 : 0; | |
1487 | ||
1488 | ret = at76_set_mib(priv, &priv->mib_buf); | |
1489 | if (ret < 0) | |
c96c31e4 JP |
1490 | wiphy_err(priv->hw->wiphy, |
1491 | "set_mib (promiscuous_mode) failed: %d\n", ret); | |
1264b951 KV |
1492 | |
1493 | mutex_unlock(&priv->mtx); | |
1494 | } | |
1495 | ||
1496 | /* Submit Rx urb back to the device */ | |
1497 | static void at76_work_submit_rx(struct work_struct *work) | |
1498 | { | |
1499 | struct at76_priv *priv = container_of(work, struct at76_priv, | |
1500 | work_submit_rx); | |
1501 | ||
1502 | mutex_lock(&priv->mtx); | |
1503 | at76_submit_rx_urb(priv); | |
1504 | mutex_unlock(&priv->mtx); | |
1505 | } | |
1506 | ||
c678de55 AM |
1507 | /* This is a workaround to make scan working: |
1508 | * currently mac80211 does not process frames with no frequency | |
1509 | * information. | |
1510 | * However during scan the HW performs a sweep by itself, and we | |
1511 | * are unable to know where the radio is actually tuned. | |
1512 | * This function tries to do its best to guess this information.. | |
1513 | * During scan, If the current frame is a beacon or a probe response, | |
1514 | * the channel information is extracted from it. | |
1515 | * When not scanning, for other frames, or if it happens that for | |
1516 | * whatever reason we fail to parse beacons and probe responses, this | |
1517 | * function returns the priv->channel information, that should be correct | |
1518 | * at least when we are not scanning. | |
1519 | */ | |
1520 | static inline int at76_guess_freq(struct at76_priv *priv) | |
1521 | { | |
1522 | size_t el_off; | |
1523 | const u8 *el; | |
1524 | int channel = priv->channel; | |
1525 | int len = priv->rx_skb->len; | |
1526 | struct ieee80211_hdr *hdr = (void *)priv->rx_skb->data; | |
1527 | ||
1528 | if (!priv->scanning) | |
1529 | goto exit; | |
1530 | ||
1531 | if (len < 24) | |
1532 | goto exit; | |
1533 | ||
1534 | if (ieee80211_is_probe_resp(hdr->frame_control)) { | |
1535 | el_off = offsetof(struct ieee80211_mgmt, u.probe_resp.variable); | |
1536 | el = ((struct ieee80211_mgmt *)hdr)->u.probe_resp.variable; | |
1537 | } else if (ieee80211_is_beacon(hdr->frame_control)) { | |
1538 | el_off = offsetof(struct ieee80211_mgmt, u.beacon.variable); | |
1539 | el = ((struct ieee80211_mgmt *)hdr)->u.beacon.variable; | |
1540 | } else { | |
1541 | goto exit; | |
1542 | } | |
1543 | len -= el_off; | |
1544 | ||
1545 | el = cfg80211_find_ie(WLAN_EID_DS_PARAMS, el, len); | |
1546 | if (el && el[1] > 0) | |
1547 | channel = el[2]; | |
1548 | ||
1549 | exit: | |
57fbcce3 | 1550 | return ieee80211_channel_to_frequency(channel, NL80211_BAND_2GHZ); |
c678de55 AM |
1551 | } |
1552 | ||
1264b951 KV |
1553 | static void at76_rx_tasklet(unsigned long param) |
1554 | { | |
1555 | struct urb *urb = (struct urb *)param; | |
1556 | struct at76_priv *priv = urb->context; | |
1557 | struct at76_rx_buffer *buf; | |
1558 | struct ieee80211_rx_status rx_status = { 0 }; | |
1559 | ||
1560 | if (priv->device_unplugged) { | |
1561 | at76_dbg(DBG_DEVSTART, "device unplugged"); | |
a9325199 | 1562 | at76_dbg(DBG_DEVSTART, "urb status %d", urb->status); |
1264b951 KV |
1563 | return; |
1564 | } | |
1565 | ||
1566 | if (!priv->rx_skb || !priv->rx_skb->data) | |
1567 | return; | |
1568 | ||
1569 | buf = (struct at76_rx_buffer *)priv->rx_skb->data; | |
1570 | ||
1571 | if (urb->status != 0) { | |
1572 | if (urb->status != -ENOENT && urb->status != -ECONNRESET) | |
1573 | at76_dbg(DBG_URB, | |
1574 | "%s %s: - nonzero Rx bulk status received: %d", | |
1575 | __func__, wiphy_name(priv->hw->wiphy), | |
1576 | urb->status); | |
1577 | return; | |
1578 | } | |
1579 | ||
1580 | at76_dbg(DBG_RX_ATMEL_HDR, | |
1581 | "%s: rx frame: rate %d rssi %d noise %d link %d", | |
1582 | wiphy_name(priv->hw->wiphy), buf->rx_rate, buf->rssi, | |
1583 | buf->noise_level, buf->link_quality); | |
1584 | ||
1585 | skb_pull(priv->rx_skb, AT76_RX_HDRLEN); | |
1586 | skb_trim(priv->rx_skb, le16_to_cpu(buf->wlength)); | |
1587 | at76_dbg_dump(DBG_RX_DATA, priv->rx_skb->data, | |
1588 | priv->rx_skb->len, "RX: len=%d", priv->rx_skb->len); | |
1589 | ||
1590 | rx_status.signal = buf->rssi; | |
1591 | rx_status.flag |= RX_FLAG_DECRYPTED; | |
1592 | rx_status.flag |= RX_FLAG_IV_STRIPPED; | |
57fbcce3 | 1593 | rx_status.band = NL80211_BAND_2GHZ; |
c678de55 | 1594 | rx_status.freq = at76_guess_freq(priv); |
1264b951 KV |
1595 | |
1596 | at76_dbg(DBG_MAC80211, "calling ieee80211_rx_irqsafe(): %d/%d", | |
1597 | priv->rx_skb->len, priv->rx_skb->data_len); | |
f1d58c25 JB |
1598 | memcpy(IEEE80211_SKB_RXCB(priv->rx_skb), &rx_status, sizeof(rx_status)); |
1599 | ieee80211_rx_irqsafe(priv->hw, priv->rx_skb); | |
1264b951 KV |
1600 | |
1601 | /* Use a new skb for the next receive */ | |
1602 | priv->rx_skb = NULL; | |
1603 | ||
1604 | at76_submit_rx_urb(priv); | |
1605 | } | |
1606 | ||
1607 | /* Load firmware into kernel memory and parse it */ | |
1608 | static struct fwentry *at76_load_firmware(struct usb_device *udev, | |
1609 | enum board_type board_type) | |
1610 | { | |
1611 | int ret; | |
1612 | char *str; | |
1613 | struct at76_fw_header *fwh; | |
1614 | struct fwentry *fwe = &firmwares[board_type]; | |
1615 | ||
1616 | mutex_lock(&fw_mutex); | |
1617 | ||
1618 | if (fwe->loaded) { | |
1619 | at76_dbg(DBG_FW, "re-using previously loaded fw"); | |
1620 | goto exit; | |
1621 | } | |
1622 | ||
1623 | at76_dbg(DBG_FW, "downloading firmware %s", fwe->fwname); | |
1624 | ret = request_firmware(&fwe->fw, fwe->fwname, &udev->dev); | |
1625 | if (ret < 0) { | |
6a4b09f8 JP |
1626 | dev_err(&udev->dev, "firmware %s not found!\n", |
1627 | fwe->fwname); | |
1628 | dev_err(&udev->dev, | |
1629 | "you may need to download the firmware from http://developer.berlios.de/projects/at76c503a/\n"); | |
1264b951 KV |
1630 | goto exit; |
1631 | } | |
1632 | ||
1633 | at76_dbg(DBG_FW, "got it."); | |
1634 | fwh = (struct at76_fw_header *)(fwe->fw->data); | |
1635 | ||
1636 | if (fwe->fw->size <= sizeof(*fwh)) { | |
6a4b09f8 JP |
1637 | dev_err(&udev->dev, |
1638 | "firmware is too short (0x%zx)\n", fwe->fw->size); | |
1264b951 KV |
1639 | goto exit; |
1640 | } | |
1641 | ||
1642 | /* CRC currently not checked */ | |
1643 | fwe->board_type = le32_to_cpu(fwh->board_type); | |
1644 | if (fwe->board_type != board_type) { | |
6a4b09f8 JP |
1645 | dev_err(&udev->dev, |
1646 | "board type mismatch, requested %u, got %u\n", | |
1647 | board_type, fwe->board_type); | |
1264b951 KV |
1648 | goto exit; |
1649 | } | |
1650 | ||
1651 | fwe->fw_version.major = fwh->major; | |
1652 | fwe->fw_version.minor = fwh->minor; | |
1653 | fwe->fw_version.patch = fwh->patch; | |
1654 | fwe->fw_version.build = fwh->build; | |
1655 | ||
1656 | str = (char *)fwh + le32_to_cpu(fwh->str_offset); | |
1657 | fwe->intfw = (u8 *)fwh + le32_to_cpu(fwh->int_fw_offset); | |
1658 | fwe->intfw_size = le32_to_cpu(fwh->int_fw_len); | |
1659 | fwe->extfw = (u8 *)fwh + le32_to_cpu(fwh->ext_fw_offset); | |
1660 | fwe->extfw_size = le32_to_cpu(fwh->ext_fw_len); | |
1661 | ||
1662 | fwe->loaded = 1; | |
1663 | ||
1664 | dev_printk(KERN_DEBUG, &udev->dev, | |
1665 | "using firmware %s (version %d.%d.%d-%d)\n", | |
1666 | fwe->fwname, fwh->major, fwh->minor, fwh->patch, fwh->build); | |
1667 | ||
1668 | at76_dbg(DBG_DEVSTART, "board %u, int %d:%d, ext %d:%d", board_type, | |
1669 | le32_to_cpu(fwh->int_fw_offset), le32_to_cpu(fwh->int_fw_len), | |
1670 | le32_to_cpu(fwh->ext_fw_offset), le32_to_cpu(fwh->ext_fw_len)); | |
1671 | at76_dbg(DBG_DEVSTART, "firmware id %s", str); | |
1672 | ||
1673 | exit: | |
1674 | mutex_unlock(&fw_mutex); | |
1675 | ||
1676 | if (fwe->loaded) | |
1677 | return fwe; | |
1678 | else | |
1679 | return NULL; | |
1680 | } | |
1681 | ||
41b4b289 SS |
1682 | static int at76_join(struct at76_priv *priv) |
1683 | { | |
1684 | struct at76_req_join join; | |
1685 | int ret; | |
1686 | ||
1687 | memset(&join, 0, sizeof(struct at76_req_join)); | |
1688 | memcpy(join.essid, priv->essid, priv->essid_size); | |
1689 | join.essid_size = priv->essid_size; | |
1690 | memcpy(join.bssid, priv->bssid, ETH_ALEN); | |
1691 | join.bss_type = INFRASTRUCTURE_MODE; | |
1692 | join.channel = priv->channel; | |
1693 | join.timeout = cpu_to_le16(2000); | |
1694 | ||
1695 | at76_dbg(DBG_MAC80211, "%s: sending CMD_JOIN", __func__); | |
1696 | ret = at76_set_card_command(priv->udev, CMD_JOIN, &join, | |
1697 | sizeof(struct at76_req_join)); | |
1698 | ||
1699 | if (ret < 0) { | |
c96c31e4 JP |
1700 | wiphy_err(priv->hw->wiphy, "at76_set_card_command failed: %d\n", |
1701 | ret); | |
41b4b289 SS |
1702 | return 0; |
1703 | } | |
1704 | ||
1705 | ret = at76_wait_completion(priv, CMD_JOIN); | |
1706 | at76_dbg(DBG_MAC80211, "%s: CMD_JOIN returned: 0x%02x", __func__, ret); | |
1707 | if (ret != CMD_STATUS_COMPLETE) { | |
c96c31e4 JP |
1708 | wiphy_err(priv->hw->wiphy, "at76_wait_completion failed: %d\n", |
1709 | ret); | |
41b4b289 SS |
1710 | return 0; |
1711 | } | |
1712 | ||
1713 | at76_set_pm_mode(priv); | |
1714 | ||
1715 | return 0; | |
1716 | } | |
1717 | ||
a185045c SS |
1718 | static void at76_work_join_bssid(struct work_struct *work) |
1719 | { | |
1720 | struct at76_priv *priv = container_of(work, struct at76_priv, | |
1721 | work_join_bssid); | |
1722 | ||
1723 | if (priv->device_unplugged) | |
1724 | return; | |
1725 | ||
1726 | mutex_lock(&priv->mtx); | |
1727 | ||
1728 | if (is_valid_ether_addr(priv->bssid)) | |
1729 | at76_join(priv); | |
1730 | ||
1731 | mutex_unlock(&priv->mtx); | |
1732 | } | |
1733 | ||
1264b951 KV |
1734 | static void at76_mac80211_tx_callback(struct urb *urb) |
1735 | { | |
1736 | struct at76_priv *priv = urb->context; | |
1737 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(priv->tx_skb); | |
1738 | ||
1739 | at76_dbg(DBG_MAC80211, "%s()", __func__); | |
1740 | ||
1741 | switch (urb->status) { | |
1742 | case 0: | |
1743 | /* success */ | |
1744 | info->flags |= IEEE80211_TX_STAT_ACK; | |
1745 | break; | |
1746 | case -ENOENT: | |
1747 | case -ECONNRESET: | |
1748 | /* fail, urb has been unlinked */ | |
1749 | /* FIXME: add error message */ | |
1750 | break; | |
1751 | default: | |
1752 | at76_dbg(DBG_URB, "%s - nonzero tx status received: %d", | |
1753 | __func__, urb->status); | |
1754 | break; | |
1755 | } | |
1756 | ||
1757 | memset(&info->status, 0, sizeof(info->status)); | |
1758 | ||
1759 | ieee80211_tx_status_irqsafe(priv->hw, priv->tx_skb); | |
1760 | ||
1761 | priv->tx_skb = NULL; | |
1762 | ||
1763 | ieee80211_wake_queues(priv->hw); | |
1764 | } | |
1765 | ||
36323f81 TH |
1766 | static void at76_mac80211_tx(struct ieee80211_hw *hw, |
1767 | struct ieee80211_tx_control *control, | |
1768 | struct sk_buff *skb) | |
1264b951 KV |
1769 | { |
1770 | struct at76_priv *priv = hw->priv; | |
1771 | struct at76_tx_buffer *tx_buffer = priv->bulk_out_buffer; | |
1772 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); | |
a185045c | 1773 | struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data; |
1264b951 KV |
1774 | int padding, submit_len, ret; |
1775 | ||
1776 | at76_dbg(DBG_MAC80211, "%s()", __func__); | |
1777 | ||
1778 | if (priv->tx_urb->status == -EINPROGRESS) { | |
c96c31e4 JP |
1779 | wiphy_err(priv->hw->wiphy, |
1780 | "%s called while tx urb is pending\n", __func__); | |
7bb45683 JB |
1781 | dev_kfree_skb_any(skb); |
1782 | return; | |
1264b951 KV |
1783 | } |
1784 | ||
a185045c SS |
1785 | /* The following code lines are important when the device is going to |
1786 | * authenticate with a new bssid. The driver must send CMD_JOIN before | |
1787 | * an authentication frame is transmitted. For this to succeed, the | |
1788 | * correct bssid of the AP must be known. As mac80211 does not inform | |
1789 | * drivers about the bssid prior to the authentication process the | |
1790 | * following workaround is necessary. If the TX frame is an | |
1791 | * authentication frame extract the bssid and send the CMD_JOIN. */ | |
1792 | if (mgmt->frame_control & cpu_to_le16(IEEE80211_STYPE_AUTH)) { | |
631c5273 | 1793 | if (!ether_addr_equal_64bits(priv->bssid, mgmt->bssid)) { |
a185045c SS |
1794 | memcpy(priv->bssid, mgmt->bssid, ETH_ALEN); |
1795 | ieee80211_queue_work(hw, &priv->work_join_bssid); | |
10889f13 JL |
1796 | dev_kfree_skb_any(skb); |
1797 | return; | |
a185045c SS |
1798 | } |
1799 | } | |
1800 | ||
1264b951 KV |
1801 | ieee80211_stop_queues(hw); |
1802 | ||
1803 | at76_ledtrig_tx_activity(); /* tell ledtrigger we send a packet */ | |
1804 | ||
1805 | WARN_ON(priv->tx_skb != NULL); | |
1806 | ||
1807 | priv->tx_skb = skb; | |
1808 | padding = at76_calc_padding(skb->len); | |
1809 | submit_len = AT76_TX_HDRLEN + skb->len + padding; | |
1810 | ||
1811 | /* setup 'Atmel' header */ | |
1812 | memset(tx_buffer, 0, sizeof(*tx_buffer)); | |
1813 | tx_buffer->padding = padding; | |
1814 | tx_buffer->wlength = cpu_to_le16(skb->len); | |
1815 | tx_buffer->tx_rate = ieee80211_get_tx_rate(hw, info)->hw_value; | |
1816 | memset(tx_buffer->reserved, 0, sizeof(tx_buffer->reserved)); | |
1817 | memcpy(tx_buffer->packet, skb->data, skb->len); | |
1818 | ||
1819 | at76_dbg(DBG_TX_DATA, "%s tx: wlen 0x%x pad 0x%x rate %d hdr", | |
1820 | wiphy_name(priv->hw->wiphy), le16_to_cpu(tx_buffer->wlength), | |
1821 | tx_buffer->padding, tx_buffer->tx_rate); | |
1822 | ||
1823 | /* send stuff */ | |
1824 | at76_dbg_dump(DBG_TX_DATA_CONTENT, tx_buffer, submit_len, | |
1825 | "%s(): tx_buffer %d bytes:", __func__, submit_len); | |
1826 | usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, tx_buffer, | |
1827 | submit_len, at76_mac80211_tx_callback, priv); | |
1828 | ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC); | |
1829 | if (ret) { | |
c96c31e4 | 1830 | wiphy_err(priv->hw->wiphy, "error in tx submit urb: %d\n", ret); |
1264b951 | 1831 | if (ret == -EINVAL) |
c96c31e4 | 1832 | wiphy_err(priv->hw->wiphy, |
5db55844 | 1833 | "-EINVAL: tx urb %p hcpriv %p complete %p\n", |
c96c31e4 JP |
1834 | priv->tx_urb, |
1835 | priv->tx_urb->hcpriv, priv->tx_urb->complete); | |
1264b951 | 1836 | } |
1264b951 KV |
1837 | } |
1838 | ||
1839 | static int at76_mac80211_start(struct ieee80211_hw *hw) | |
1840 | { | |
1841 | struct at76_priv *priv = hw->priv; | |
1842 | int ret; | |
1843 | ||
1844 | at76_dbg(DBG_MAC80211, "%s()", __func__); | |
1845 | ||
1846 | mutex_lock(&priv->mtx); | |
1847 | ||
1848 | ret = at76_submit_rx_urb(priv); | |
1849 | if (ret < 0) { | |
c96c31e4 JP |
1850 | wiphy_err(priv->hw->wiphy, "open: submit_rx_urb failed: %d\n", |
1851 | ret); | |
1264b951 KV |
1852 | goto error; |
1853 | } | |
1854 | ||
1855 | at76_startup_device(priv); | |
1856 | ||
1857 | at76_start_monitor(priv); | |
1858 | ||
1859 | error: | |
1860 | mutex_unlock(&priv->mtx); | |
1861 | ||
1862 | return 0; | |
1863 | } | |
1864 | ||
1865 | static void at76_mac80211_stop(struct ieee80211_hw *hw) | |
1866 | { | |
1867 | struct at76_priv *priv = hw->priv; | |
1868 | ||
1869 | at76_dbg(DBG_MAC80211, "%s()", __func__); | |
1870 | ||
9ed21d39 | 1871 | cancel_delayed_work(&priv->dwork_hw_scan); |
a185045c | 1872 | cancel_work_sync(&priv->work_join_bssid); |
ebc8ab17 LR |
1873 | cancel_work_sync(&priv->work_set_promisc); |
1874 | ||
1264b951 KV |
1875 | mutex_lock(&priv->mtx); |
1876 | ||
1877 | if (!priv->device_unplugged) { | |
1878 | /* We are called by "ifconfig ethX down", not because the | |
1879 | * device is not available anymore. */ | |
1880 | at76_set_radio(priv, 0); | |
1881 | ||
1882 | /* We unlink rx_urb because at76_open() re-submits it. | |
1883 | * If unplugged, at76_delete_device() takes care of it. */ | |
1884 | usb_kill_urb(priv->rx_urb); | |
1885 | } | |
1886 | ||
1887 | mutex_unlock(&priv->mtx); | |
1888 | } | |
1889 | ||
1890 | static int at76_add_interface(struct ieee80211_hw *hw, | |
1ed32e4f | 1891 | struct ieee80211_vif *vif) |
1264b951 KV |
1892 | { |
1893 | struct at76_priv *priv = hw->priv; | |
1894 | int ret = 0; | |
1895 | ||
1896 | at76_dbg(DBG_MAC80211, "%s()", __func__); | |
1897 | ||
1898 | mutex_lock(&priv->mtx); | |
1899 | ||
1ed32e4f | 1900 | switch (vif->type) { |
1264b951 KV |
1901 | case NL80211_IFTYPE_STATION: |
1902 | priv->iw_mode = IW_MODE_INFRA; | |
1903 | break; | |
1904 | default: | |
1905 | ret = -EOPNOTSUPP; | |
1906 | goto exit; | |
1907 | } | |
1908 | ||
1909 | exit: | |
1910 | mutex_unlock(&priv->mtx); | |
1911 | ||
1912 | return ret; | |
1913 | } | |
1914 | ||
1915 | static void at76_remove_interface(struct ieee80211_hw *hw, | |
1ed32e4f | 1916 | struct ieee80211_vif *vif) |
1264b951 KV |
1917 | { |
1918 | at76_dbg(DBG_MAC80211, "%s()", __func__); | |
1919 | } | |
1920 | ||
1264b951 KV |
1921 | static void at76_dwork_hw_scan(struct work_struct *work) |
1922 | { | |
1923 | struct at76_priv *priv = container_of(work, struct at76_priv, | |
1924 | dwork_hw_scan.work); | |
7947d3e0 AS |
1925 | struct cfg80211_scan_info info = { |
1926 | .aborted = false, | |
1927 | }; | |
1264b951 KV |
1928 | int ret; |
1929 | ||
deda862e JA |
1930 | if (priv->device_unplugged) |
1931 | return; | |
1932 | ||
1264b951 KV |
1933 | mutex_lock(&priv->mtx); |
1934 | ||
1935 | ret = at76_get_cmd_status(priv->udev, CMD_SCAN); | |
1936 | at76_dbg(DBG_MAC80211, "%s: CMD_SCAN status 0x%02x", __func__, ret); | |
1937 | ||
1938 | /* FIXME: add maximum time for scan to complete */ | |
1939 | ||
1940 | if (ret != CMD_STATUS_COMPLETE) { | |
42935eca LR |
1941 | ieee80211_queue_delayed_work(priv->hw, &priv->dwork_hw_scan, |
1942 | SCAN_POLL_INTERVAL); | |
21a4cc00 JL |
1943 | mutex_unlock(&priv->mtx); |
1944 | return; | |
1264b951 KV |
1945 | } |
1946 | ||
1264b951 KV |
1947 | if (is_valid_ether_addr(priv->bssid)) |
1948 | at76_join(priv); | |
1949 | ||
c678de55 AM |
1950 | priv->scanning = false; |
1951 | ||
1264b951 | 1952 | mutex_unlock(&priv->mtx); |
21a4cc00 | 1953 | |
7947d3e0 | 1954 | ieee80211_scan_completed(priv->hw, &info); |
21a4cc00 JL |
1955 | |
1956 | ieee80211_wake_queues(priv->hw); | |
1264b951 KV |
1957 | } |
1958 | ||
19e8bc7f | 1959 | static int at76_hw_scan(struct ieee80211_hw *hw, |
a060bbfe | 1960 | struct ieee80211_vif *vif, |
c56ef672 | 1961 | struct ieee80211_scan_request *hw_req) |
1264b951 | 1962 | { |
c56ef672 | 1963 | struct cfg80211_scan_request *req = &hw_req->req; |
1264b951 KV |
1964 | struct at76_priv *priv = hw->priv; |
1965 | struct at76_req_scan scan; | |
19e8bc7f JA |
1966 | u8 *ssid = NULL; |
1967 | int ret, len = 0; | |
1264b951 KV |
1968 | |
1969 | at76_dbg(DBG_MAC80211, "%s():", __func__); | |
1264b951 | 1970 | |
deda862e JA |
1971 | if (priv->device_unplugged) |
1972 | return 0; | |
1973 | ||
1264b951 KV |
1974 | mutex_lock(&priv->mtx); |
1975 | ||
1976 | ieee80211_stop_queues(hw); | |
1977 | ||
1978 | memset(&scan, 0, sizeof(struct at76_req_scan)); | |
93803b33 | 1979 | eth_broadcast_addr(scan.bssid); |
19e8bc7f JA |
1980 | |
1981 | if (req->n_ssids) { | |
1982 | scan.scan_type = SCAN_TYPE_ACTIVE; | |
1983 | ssid = req->ssids[0].ssid; | |
1984 | len = req->ssids[0].ssid_len; | |
1985 | } else { | |
1986 | scan.scan_type = SCAN_TYPE_PASSIVE; | |
1987 | } | |
1988 | ||
1989 | if (len) { | |
1264b951 KV |
1990 | memcpy(scan.essid, ssid, len); |
1991 | scan.essid_size = len; | |
1992 | } | |
19e8bc7f | 1993 | |
1264b951 KV |
1994 | scan.min_channel_time = cpu_to_le16(priv->scan_min_time); |
1995 | scan.max_channel_time = cpu_to_le16(priv->scan_max_time); | |
1996 | scan.probe_delay = cpu_to_le16(priv->scan_min_time * 1000); | |
1997 | scan.international_scan = 0; | |
1998 | ||
1999 | at76_dbg(DBG_MAC80211, "%s: sending CMD_SCAN", __func__); | |
2000 | ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan)); | |
2001 | ||
2002 | if (ret < 0) { | |
24c03286 | 2003 | wiphy_err(priv->hw->wiphy, "CMD_SCAN failed: %d\n", ret); |
1264b951 KV |
2004 | goto exit; |
2005 | } | |
2006 | ||
c678de55 | 2007 | priv->scanning = true; |
42935eca LR |
2008 | ieee80211_queue_delayed_work(priv->hw, &priv->dwork_hw_scan, |
2009 | SCAN_POLL_INTERVAL); | |
1264b951 KV |
2010 | |
2011 | exit: | |
2012 | mutex_unlock(&priv->mtx); | |
2013 | ||
2014 | return 0; | |
2015 | } | |
2016 | ||
2017 | static int at76_config(struct ieee80211_hw *hw, u32 changed) | |
2018 | { | |
2019 | struct at76_priv *priv = hw->priv; | |
2020 | ||
f424afa1 | 2021 | at76_dbg(DBG_MAC80211, "%s(): channel %d", |
675a0b04 | 2022 | __func__, hw->conf.chandef.chan->hw_value); |
1264b951 KV |
2023 | at76_dbg_dump(DBG_MAC80211, priv->bssid, ETH_ALEN, "bssid:"); |
2024 | ||
2025 | mutex_lock(&priv->mtx); | |
2026 | ||
675a0b04 | 2027 | priv->channel = hw->conf.chandef.chan->hw_value; |
1264b951 KV |
2028 | |
2029 | if (is_valid_ether_addr(priv->bssid)) | |
2030 | at76_join(priv); | |
2031 | else | |
2032 | at76_start_monitor(priv); | |
2033 | ||
2034 | mutex_unlock(&priv->mtx); | |
2035 | ||
2036 | return 0; | |
2037 | } | |
2038 | ||
2d0ddec5 JB |
2039 | static void at76_bss_info_changed(struct ieee80211_hw *hw, |
2040 | struct ieee80211_vif *vif, | |
2041 | struct ieee80211_bss_conf *conf, | |
2042 | u32 changed) | |
1264b951 KV |
2043 | { |
2044 | struct at76_priv *priv = hw->priv; | |
2045 | ||
2046 | at76_dbg(DBG_MAC80211, "%s():", __func__); | |
2d0ddec5 JB |
2047 | |
2048 | if (!(changed & BSS_CHANGED_BSSID)) | |
2049 | return; | |
2050 | ||
1264b951 KV |
2051 | at76_dbg_dump(DBG_MAC80211, conf->bssid, ETH_ALEN, "bssid:"); |
2052 | ||
2053 | mutex_lock(&priv->mtx); | |
2054 | ||
2055 | memcpy(priv->bssid, conf->bssid, ETH_ALEN); | |
2056 | ||
2057 | if (is_valid_ether_addr(priv->bssid)) | |
2058 | /* mac80211 is joining a bss */ | |
2059 | at76_join(priv); | |
2060 | ||
2061 | mutex_unlock(&priv->mtx); | |
1264b951 KV |
2062 | } |
2063 | ||
2064 | /* must be atomic */ | |
2065 | static void at76_configure_filter(struct ieee80211_hw *hw, | |
2066 | unsigned int changed_flags, | |
3ac64bee | 2067 | unsigned int *total_flags, u64 multicast) |
1264b951 KV |
2068 | { |
2069 | struct at76_priv *priv = hw->priv; | |
2070 | int flags; | |
2071 | ||
2072 | at76_dbg(DBG_MAC80211, "%s(): changed_flags=0x%08x " | |
3ac64bee JB |
2073 | "total_flags=0x%08x", |
2074 | __func__, changed_flags, *total_flags); | |
1264b951 KV |
2075 | |
2076 | flags = changed_flags & AT76_SUPPORTED_FILTERS; | |
2077 | *total_flags = AT76_SUPPORTED_FILTERS; | |
2078 | ||
deda862e JA |
2079 | /* Bail out after updating flags to prevent a WARN_ON in mac80211. */ |
2080 | if (priv->device_unplugged) | |
2081 | return; | |
2082 | ||
1264b951 KV |
2083 | /* FIXME: access to priv->promisc should be protected with |
2084 | * priv->mtx, but it's impossible because this function needs to be | |
2085 | * atomic */ | |
2086 | ||
2087 | if (flags && !priv->promisc) { | |
2088 | /* mac80211 wants us to enable promiscuous mode */ | |
2089 | priv->promisc = 1; | |
2090 | } else if (!flags && priv->promisc) { | |
2091 | /* we need to disable promiscuous mode */ | |
2092 | priv->promisc = 0; | |
2093 | } else | |
2094 | return; | |
2095 | ||
42935eca | 2096 | ieee80211_queue_work(hw, &priv->work_set_promisc); |
1264b951 KV |
2097 | } |
2098 | ||
347f8fdb AM |
2099 | static int at76_set_wep(struct at76_priv *priv) |
2100 | { | |
2101 | int ret = 0; | |
2102 | struct mib_mac_wep *mib_data = &priv->mib_buf.data.wep_mib; | |
2103 | ||
2104 | priv->mib_buf.type = MIB_MAC_WEP; | |
2105 | priv->mib_buf.size = sizeof(struct mib_mac_wep); | |
2106 | priv->mib_buf.index = 0; | |
2107 | ||
2108 | memset(mib_data, 0, sizeof(*mib_data)); | |
2109 | ||
2110 | if (priv->wep_enabled) { | |
2111 | if (priv->wep_keys_len[priv->wep_key_id] > WEP_SMALL_KEY_LEN) | |
2112 | mib_data->encryption_level = 2; | |
2113 | else | |
2114 | mib_data->encryption_level = 1; | |
2115 | ||
2116 | /* always exclude unencrypted if WEP is active */ | |
2117 | mib_data->exclude_unencrypted = 1; | |
2118 | } else { | |
2119 | mib_data->exclude_unencrypted = 0; | |
2120 | mib_data->encryption_level = 0; | |
2121 | } | |
2122 | ||
2123 | mib_data->privacy_invoked = priv->wep_enabled; | |
2124 | mib_data->wep_default_key_id = priv->wep_key_id; | |
2125 | memcpy(mib_data->wep_default_keyvalue, priv->wep_keys, | |
2126 | sizeof(priv->wep_keys)); | |
2127 | ||
2128 | ret = at76_set_mib(priv, &priv->mib_buf); | |
2129 | ||
2130 | if (ret < 0) | |
2131 | wiphy_err(priv->hw->wiphy, | |
2132 | "set_mib (wep) failed: %d\n", ret); | |
2133 | ||
2134 | return ret; | |
2135 | } | |
2136 | ||
1264b951 KV |
2137 | static int at76_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
2138 | struct ieee80211_vif *vif, struct ieee80211_sta *sta, | |
2139 | struct ieee80211_key_conf *key) | |
2140 | { | |
2141 | struct at76_priv *priv = hw->priv; | |
2142 | ||
2143 | int i; | |
2144 | ||
97359d12 | 2145 | at76_dbg(DBG_MAC80211, "%s(): cmd %d key->cipher %d key->keyidx %d " |
1264b951 | 2146 | "key->keylen %d", |
97359d12 | 2147 | __func__, cmd, key->cipher, key->keyidx, key->keylen); |
1264b951 | 2148 | |
97359d12 JB |
2149 | if ((key->cipher != WLAN_CIPHER_SUITE_WEP40) && |
2150 | (key->cipher != WLAN_CIPHER_SUITE_WEP104)) | |
1264b951 KV |
2151 | return -EOPNOTSUPP; |
2152 | ||
2153 | key->hw_key_idx = key->keyidx; | |
2154 | ||
2155 | mutex_lock(&priv->mtx); | |
2156 | ||
2157 | switch (cmd) { | |
2158 | case SET_KEY: | |
2159 | memcpy(priv->wep_keys[key->keyidx], key->key, key->keylen); | |
2160 | priv->wep_keys_len[key->keyidx] = key->keylen; | |
2161 | ||
2162 | /* FIXME: find out how to do this properly */ | |
2163 | priv->wep_key_id = key->keyidx; | |
2164 | ||
2165 | break; | |
2166 | case DISABLE_KEY: | |
2167 | default: | |
2168 | priv->wep_keys_len[key->keyidx] = 0; | |
2169 | break; | |
2170 | } | |
2171 | ||
2172 | priv->wep_enabled = 0; | |
2173 | ||
2174 | for (i = 0; i < WEP_KEYS; i++) { | |
2175 | if (priv->wep_keys_len[i] != 0) | |
2176 | priv->wep_enabled = 1; | |
2177 | } | |
2178 | ||
347f8fdb | 2179 | at76_set_wep(priv); |
1264b951 KV |
2180 | |
2181 | mutex_unlock(&priv->mtx); | |
2182 | ||
2183 | return 0; | |
2184 | } | |
2185 | ||
2186 | static const struct ieee80211_ops at76_ops = { | |
2187 | .tx = at76_mac80211_tx, | |
2188 | .add_interface = at76_add_interface, | |
2189 | .remove_interface = at76_remove_interface, | |
2190 | .config = at76_config, | |
2d0ddec5 | 2191 | .bss_info_changed = at76_bss_info_changed, |
1264b951 KV |
2192 | .configure_filter = at76_configure_filter, |
2193 | .start = at76_mac80211_start, | |
2194 | .stop = at76_mac80211_stop, | |
2195 | .hw_scan = at76_hw_scan, | |
2196 | .set_key = at76_set_key, | |
2197 | }; | |
2198 | ||
2199 | /* Allocate network device and initialize private data */ | |
2200 | static struct at76_priv *at76_alloc_new_device(struct usb_device *udev) | |
2201 | { | |
2202 | struct ieee80211_hw *hw; | |
2203 | struct at76_priv *priv; | |
2204 | ||
2205 | hw = ieee80211_alloc_hw(sizeof(struct at76_priv), &at76_ops); | |
2206 | if (!hw) { | |
2207 | printk(KERN_ERR DRIVER_NAME ": could not register" | |
2208 | " ieee80211_hw\n"); | |
2209 | return NULL; | |
2210 | } | |
2211 | ||
2212 | priv = hw->priv; | |
2213 | priv->hw = hw; | |
2214 | ||
2215 | priv->udev = udev; | |
2216 | ||
2217 | mutex_init(&priv->mtx); | |
2218 | INIT_WORK(&priv->work_set_promisc, at76_work_set_promisc); | |
2219 | INIT_WORK(&priv->work_submit_rx, at76_work_submit_rx); | |
a185045c | 2220 | INIT_WORK(&priv->work_join_bssid, at76_work_join_bssid); |
1264b951 KV |
2221 | INIT_DELAYED_WORK(&priv->dwork_hw_scan, at76_dwork_hw_scan); |
2222 | ||
deda862e | 2223 | tasklet_init(&priv->rx_tasklet, at76_rx_tasklet, 0); |
1264b951 KV |
2224 | |
2225 | priv->pm_mode = AT76_PM_OFF; | |
2226 | priv->pm_period = 0; | |
2227 | ||
2228 | /* unit us */ | |
1264b951 KV |
2229 | |
2230 | return priv; | |
2231 | } | |
2232 | ||
2233 | static int at76_alloc_urbs(struct at76_priv *priv, | |
2234 | struct usb_interface *interface) | |
2235 | { | |
2236 | struct usb_endpoint_descriptor *endpoint, *ep_in, *ep_out; | |
2237 | int i; | |
2238 | int buffer_size; | |
2239 | struct usb_host_interface *iface_desc; | |
2240 | ||
2241 | at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__); | |
2242 | ||
2243 | at76_dbg(DBG_URB, "%s: NumEndpoints %d ", __func__, | |
2244 | interface->altsetting[0].desc.bNumEndpoints); | |
2245 | ||
2246 | ep_in = NULL; | |
2247 | ep_out = NULL; | |
2248 | iface_desc = interface->cur_altsetting; | |
2249 | for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) { | |
2250 | endpoint = &iface_desc->endpoint[i].desc; | |
2251 | ||
2252 | at76_dbg(DBG_URB, "%s: %d. endpoint: addr 0x%x attr 0x%x", | |
2253 | __func__, i, endpoint->bEndpointAddress, | |
2254 | endpoint->bmAttributes); | |
2255 | ||
2256 | if (!ep_in && usb_endpoint_is_bulk_in(endpoint)) | |
2257 | ep_in = endpoint; | |
2258 | ||
2259 | if (!ep_out && usb_endpoint_is_bulk_out(endpoint)) | |
2260 | ep_out = endpoint; | |
2261 | } | |
2262 | ||
2263 | if (!ep_in || !ep_out) { | |
6a4b09f8 | 2264 | dev_err(&interface->dev, "bulk endpoints missing\n"); |
1264b951 KV |
2265 | return -ENXIO; |
2266 | } | |
2267 | ||
2268 | priv->rx_pipe = usb_rcvbulkpipe(priv->udev, ep_in->bEndpointAddress); | |
2269 | priv->tx_pipe = usb_sndbulkpipe(priv->udev, ep_out->bEndpointAddress); | |
2270 | ||
2271 | priv->rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
2272 | priv->tx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
2273 | if (!priv->rx_urb || !priv->tx_urb) { | |
6a4b09f8 | 2274 | dev_err(&interface->dev, "cannot allocate URB\n"); |
1264b951 KV |
2275 | return -ENOMEM; |
2276 | } | |
2277 | ||
2278 | buffer_size = sizeof(struct at76_tx_buffer) + MAX_PADDING_SIZE; | |
2279 | priv->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL); | |
0d2e7a5c | 2280 | if (!priv->bulk_out_buffer) |
1264b951 | 2281 | return -ENOMEM; |
1264b951 KV |
2282 | |
2283 | at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__); | |
2284 | ||
2285 | return 0; | |
2286 | } | |
2287 | ||
2288 | static struct ieee80211_rate at76_rates[] = { | |
2289 | { .bitrate = 10, .hw_value = TX_RATE_1MBIT, }, | |
2290 | { .bitrate = 20, .hw_value = TX_RATE_2MBIT, }, | |
2291 | { .bitrate = 55, .hw_value = TX_RATE_5_5MBIT, }, | |
2292 | { .bitrate = 110, .hw_value = TX_RATE_11MBIT, }, | |
2293 | }; | |
2294 | ||
2295 | static struct ieee80211_channel at76_channels[] = { | |
2296 | { .center_freq = 2412, .hw_value = 1 }, | |
2297 | { .center_freq = 2417, .hw_value = 2 }, | |
2298 | { .center_freq = 2422, .hw_value = 3 }, | |
2299 | { .center_freq = 2427, .hw_value = 4 }, | |
2300 | { .center_freq = 2432, .hw_value = 5 }, | |
2301 | { .center_freq = 2437, .hw_value = 6 }, | |
2302 | { .center_freq = 2442, .hw_value = 7 }, | |
2303 | { .center_freq = 2447, .hw_value = 8 }, | |
2304 | { .center_freq = 2452, .hw_value = 9 }, | |
2305 | { .center_freq = 2457, .hw_value = 10 }, | |
2306 | { .center_freq = 2462, .hw_value = 11 }, | |
2307 | { .center_freq = 2467, .hw_value = 12 }, | |
2308 | { .center_freq = 2472, .hw_value = 13 }, | |
2309 | { .center_freq = 2484, .hw_value = 14 } | |
2310 | }; | |
2311 | ||
2312 | static struct ieee80211_supported_band at76_supported_band = { | |
2313 | .channels = at76_channels, | |
2314 | .n_channels = ARRAY_SIZE(at76_channels), | |
2315 | .bitrates = at76_rates, | |
2316 | .n_bitrates = ARRAY_SIZE(at76_rates), | |
2317 | }; | |
2318 | ||
2319 | /* Register network device and initialize the hardware */ | |
2320 | static int at76_init_new_device(struct at76_priv *priv, | |
2321 | struct usb_interface *interface) | |
2322 | { | |
fe348cb6 KV |
2323 | struct wiphy *wiphy; |
2324 | size_t len; | |
1264b951 KV |
2325 | int ret; |
2326 | ||
2327 | /* set up the endpoint information */ | |
2328 | /* check out the endpoints */ | |
2329 | ||
2330 | at76_dbg(DBG_DEVSTART, "USB interface: %d endpoints", | |
2331 | interface->cur_altsetting->desc.bNumEndpoints); | |
2332 | ||
2333 | ret = at76_alloc_urbs(priv, interface); | |
2334 | if (ret < 0) | |
2335 | goto exit; | |
2336 | ||
2337 | /* MAC address */ | |
2338 | ret = at76_get_hw_config(priv); | |
2339 | if (ret < 0) { | |
6a4b09f8 | 2340 | dev_err(&interface->dev, "cannot get MAC address\n"); |
1264b951 KV |
2341 | goto exit; |
2342 | } | |
2343 | ||
2344 | priv->domain = at76_get_reg_domain(priv->regulatory_domain); | |
2345 | ||
2346 | priv->channel = DEF_CHANNEL; | |
2347 | priv->iw_mode = IW_MODE_INFRA; | |
2348 | priv->rts_threshold = DEF_RTS_THRESHOLD; | |
2349 | priv->frag_threshold = DEF_FRAG_THRESHOLD; | |
2350 | priv->short_retry_limit = DEF_SHORT_RETRY_LIMIT; | |
2351 | priv->txrate = TX_RATE_AUTO; | |
2352 | priv->preamble_type = PREAMBLE_TYPE_LONG; | |
2353 | priv->beacon_period = 100; | |
2354 | priv->auth_mode = WLAN_AUTH_OPEN; | |
2355 | priv->scan_min_time = DEF_SCAN_MIN_TIME; | |
2356 | priv->scan_max_time = DEF_SCAN_MAX_TIME; | |
2357 | priv->scan_mode = SCAN_TYPE_ACTIVE; | |
deda862e | 2358 | priv->device_unplugged = 0; |
1264b951 KV |
2359 | |
2360 | /* mac80211 initialisation */ | |
fe348cb6 | 2361 | wiphy = priv->hw->wiphy; |
19e8bc7f | 2362 | priv->hw->wiphy->max_scan_ssids = 1; |
18a83659 | 2363 | priv->hw->wiphy->max_scan_ie_len = 0; |
1264b951 | 2364 | priv->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); |
57fbcce3 | 2365 | priv->hw->wiphy->bands[NL80211_BAND_2GHZ] = &at76_supported_band; |
30686bf7 JB |
2366 | ieee80211_hw_set(priv->hw, RX_INCLUDES_FCS); |
2367 | ieee80211_hw_set(priv->hw, SIGNAL_UNSPEC); | |
19e8bc7f | 2368 | priv->hw->max_signal = 100; |
1264b951 KV |
2369 | |
2370 | SET_IEEE80211_DEV(priv->hw, &interface->dev); | |
2371 | SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr); | |
2372 | ||
fe348cb6 KV |
2373 | len = sizeof(wiphy->fw_version); |
2374 | snprintf(wiphy->fw_version, len, "%d.%d.%d-%d", | |
2375 | priv->fw_version.major, priv->fw_version.minor, | |
2376 | priv->fw_version.patch, priv->fw_version.build); | |
2377 | ||
2378 | wiphy->hw_version = priv->board_type; | |
2379 | ||
ae44b502 AZ |
2380 | wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST); |
2381 | ||
1264b951 KV |
2382 | ret = ieee80211_register_hw(priv->hw); |
2383 | if (ret) { | |
2384 | printk(KERN_ERR "cannot register mac80211 hw (status %d)!\n", | |
2385 | ret); | |
2386 | goto exit; | |
2387 | } | |
2388 | ||
2389 | priv->mac80211_registered = 1; | |
2390 | ||
5db55844 | 2391 | wiphy_info(priv->hw->wiphy, "USB %s, MAC %pM, firmware %d.%d.%d-%d\n", |
c96c31e4 JP |
2392 | dev_name(&interface->dev), priv->mac_addr, |
2393 | priv->fw_version.major, priv->fw_version.minor, | |
2394 | priv->fw_version.patch, priv->fw_version.build); | |
2395 | wiphy_info(priv->hw->wiphy, "regulatory domain 0x%02x: %s\n", | |
2396 | priv->regulatory_domain, priv->domain->name); | |
1264b951 KV |
2397 | |
2398 | exit: | |
2399 | return ret; | |
2400 | } | |
2401 | ||
2402 | static void at76_delete_device(struct at76_priv *priv) | |
2403 | { | |
2404 | at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__); | |
2405 | ||
2406 | /* The device is gone, don't bother turning it off */ | |
2407 | priv->device_unplugged = 1; | |
2408 | ||
deda862e | 2409 | tasklet_kill(&priv->rx_tasklet); |
1264b951 | 2410 | |
64344d78 | 2411 | if (priv->mac80211_registered) |
deda862e | 2412 | ieee80211_unregister_hw(priv->hw); |
1264b951 KV |
2413 | |
2414 | if (priv->tx_urb) { | |
2415 | usb_kill_urb(priv->tx_urb); | |
2416 | usb_free_urb(priv->tx_urb); | |
2417 | } | |
2418 | if (priv->rx_urb) { | |
2419 | usb_kill_urb(priv->rx_urb); | |
2420 | usb_free_urb(priv->rx_urb); | |
2421 | } | |
2422 | ||
2423 | at76_dbg(DBG_PROC_ENTRY, "%s: unlinked urbs", __func__); | |
2424 | ||
deda862e JA |
2425 | kfree(priv->bulk_out_buffer); |
2426 | ||
1cc198fe JA |
2427 | del_timer_sync(&ledtrig_tx_timer); |
2428 | ||
54cb2284 | 2429 | kfree_skb(priv->rx_skb); |
1264b951 | 2430 | |
1264b951 KV |
2431 | at76_dbg(DBG_PROC_ENTRY, "%s: before freeing priv/ieee80211_hw", |
2432 | __func__); | |
2433 | ieee80211_free_hw(priv->hw); | |
2434 | ||
2435 | at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__); | |
2436 | } | |
2437 | ||
2438 | static int at76_probe(struct usb_interface *interface, | |
2439 | const struct usb_device_id *id) | |
2440 | { | |
2441 | int ret; | |
2442 | struct at76_priv *priv; | |
2443 | struct fwentry *fwe; | |
2444 | struct usb_device *udev; | |
2445 | int op_mode; | |
2446 | int need_ext_fw = 0; | |
174beab7 | 2447 | struct mib_fw_version *fwv = NULL; |
1264b951 KV |
2448 | int board_type = (int)id->driver_info; |
2449 | ||
2450 | udev = usb_get_dev(interface_to_usbdev(interface)); | |
2451 | ||
174beab7 AM |
2452 | fwv = kmalloc(sizeof(*fwv), GFP_KERNEL); |
2453 | if (!fwv) { | |
2454 | ret = -ENOMEM; | |
2455 | goto exit; | |
2456 | } | |
2457 | ||
1264b951 KV |
2458 | /* Load firmware into kernel memory */ |
2459 | fwe = at76_load_firmware(udev, board_type); | |
2460 | if (!fwe) { | |
2461 | ret = -ENOENT; | |
174beab7 | 2462 | goto exit; |
1264b951 KV |
2463 | } |
2464 | ||
2465 | op_mode = at76_get_op_mode(udev); | |
2466 | ||
2467 | at76_dbg(DBG_DEVSTART, "opmode %d", op_mode); | |
2468 | ||
2469 | /* we get OPMODE_NONE with 2.4.23, SMC2662W-AR ??? | |
2470 | we get 204 with 2.4.23, Fiberline FL-WL240u (505A+RFMD2958) ??? */ | |
2471 | ||
2472 | if (op_mode == OPMODE_HW_CONFIG_MODE) { | |
6a4b09f8 JP |
2473 | dev_err(&interface->dev, |
2474 | "cannot handle a device in HW_CONFIG_MODE\n"); | |
1264b951 | 2475 | ret = -EBUSY; |
174beab7 | 2476 | goto exit; |
1264b951 KV |
2477 | } |
2478 | ||
2479 | if (op_mode != OPMODE_NORMAL_NIC_WITH_FLASH | |
2480 | && op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) { | |
2481 | /* download internal firmware part */ | |
2482 | dev_printk(KERN_DEBUG, &interface->dev, | |
2483 | "downloading internal firmware\n"); | |
2484 | ret = at76_load_internal_fw(udev, fwe); | |
2485 | if (ret < 0) { | |
6a4b09f8 JP |
2486 | dev_err(&interface->dev, |
2487 | "error %d downloading internal firmware\n", | |
2488 | ret); | |
1264b951 | 2489 | } |
174beab7 | 2490 | goto exit; |
1264b951 KV |
2491 | } |
2492 | ||
2493 | /* Internal firmware already inside the device. Get firmware | |
2494 | * version to test if external firmware is loaded. | |
2495 | * This works only for newer firmware, e.g. the Intersil 0.90.x | |
2496 | * says "control timeout on ep0in" and subsequent | |
2497 | * at76_get_op_mode() fail too :-( */ | |
2498 | ||
2499 | /* if version >= 0.100.x.y or device with built-in flash we can | |
2500 | * query the device for the fw version */ | |
2501 | if ((fwe->fw_version.major > 0 || fwe->fw_version.minor >= 100) | |
2502 | || (op_mode == OPMODE_NORMAL_NIC_WITH_FLASH)) { | |
174beab7 AM |
2503 | ret = at76_get_mib(udev, MIB_FW_VERSION, fwv, sizeof(*fwv)); |
2504 | if (ret < 0 || (fwv->major | fwv->minor) == 0) | |
1264b951 KV |
2505 | need_ext_fw = 1; |
2506 | } else | |
2507 | /* No way to check firmware version, reload to be sure */ | |
2508 | need_ext_fw = 1; | |
2509 | ||
2510 | if (need_ext_fw) { | |
2511 | dev_printk(KERN_DEBUG, &interface->dev, | |
2512 | "downloading external firmware\n"); | |
2513 | ||
2514 | ret = at76_load_external_fw(udev, fwe); | |
174beab7 AM |
2515 | if (ret < 0) |
2516 | goto exit; | |
1264b951 KV |
2517 | |
2518 | /* Re-check firmware version */ | |
174beab7 | 2519 | ret = at76_get_mib(udev, MIB_FW_VERSION, fwv, sizeof(*fwv)); |
1264b951 | 2520 | if (ret < 0) { |
6a4b09f8 JP |
2521 | dev_err(&interface->dev, |
2522 | "error %d getting firmware version\n", ret); | |
174beab7 | 2523 | goto exit; |
1264b951 KV |
2524 | } |
2525 | } | |
2526 | ||
2527 | priv = at76_alloc_new_device(udev); | |
2528 | if (!priv) { | |
2529 | ret = -ENOMEM; | |
174beab7 | 2530 | goto exit; |
1264b951 KV |
2531 | } |
2532 | ||
2533 | usb_set_intfdata(interface, priv); | |
2534 | ||
174beab7 | 2535 | memcpy(&priv->fw_version, fwv, sizeof(struct mib_fw_version)); |
1264b951 KV |
2536 | priv->board_type = board_type; |
2537 | ||
2538 | ret = at76_init_new_device(priv, interface); | |
2539 | if (ret < 0) | |
2540 | at76_delete_device(priv); | |
2541 | ||
174beab7 AM |
2542 | exit: |
2543 | kfree(fwv); | |
2544 | if (ret < 0) | |
2545 | usb_put_dev(udev); | |
1264b951 KV |
2546 | return ret; |
2547 | } | |
2548 | ||
2549 | static void at76_disconnect(struct usb_interface *interface) | |
2550 | { | |
2551 | struct at76_priv *priv; | |
2552 | ||
2553 | priv = usb_get_intfdata(interface); | |
2554 | usb_set_intfdata(interface, NULL); | |
2555 | ||
2556 | /* Disconnect after loading internal firmware */ | |
2557 | if (!priv) | |
2558 | return; | |
2559 | ||
c96c31e4 | 2560 | wiphy_info(priv->hw->wiphy, "disconnecting\n"); |
1264b951 | 2561 | at76_delete_device(priv); |
29e20aa6 | 2562 | usb_put_dev(priv->udev); |
6a4b09f8 | 2563 | dev_info(&interface->dev, "disconnected\n"); |
1264b951 KV |
2564 | } |
2565 | ||
2566 | /* Structure for registering this driver with the USB subsystem */ | |
2567 | static struct usb_driver at76_driver = { | |
2568 | .name = DRIVER_NAME, | |
2569 | .probe = at76_probe, | |
2570 | .disconnect = at76_disconnect, | |
2571 | .id_table = dev_table, | |
e1f12eb6 | 2572 | .disable_hub_initiated_lpm = 1, |
1264b951 KV |
2573 | }; |
2574 | ||
2575 | static int __init at76_mod_init(void) | |
2576 | { | |
2577 | int result; | |
2578 | ||
2579 | printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " loading\n"); | |
2580 | ||
2581 | mutex_init(&fw_mutex); | |
2582 | ||
2583 | /* register this driver with the USB subsystem */ | |
2584 | result = usb_register(&at76_driver); | |
2585 | if (result < 0) | |
2586 | printk(KERN_ERR DRIVER_NAME | |
2587 | ": usb_register failed (status %d)\n", result); | |
2588 | ||
2589 | led_trigger_register_simple("at76_usb-tx", &ledtrig_tx); | |
2590 | return result; | |
2591 | } | |
2592 | ||
2593 | static void __exit at76_mod_exit(void) | |
2594 | { | |
2595 | int i; | |
2596 | ||
2597 | printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " unloading\n"); | |
2598 | usb_deregister(&at76_driver); | |
c987ce93 JJ |
2599 | for (i = 0; i < ARRAY_SIZE(firmwares); i++) |
2600 | release_firmware(firmwares[i].fw); | |
1264b951 KV |
2601 | led_trigger_unregister_simple(ledtrig_tx); |
2602 | } | |
2603 | ||
2ce4f9d8 | 2604 | module_param_named(debug, at76_debug, uint, 0600); |
1264b951 KV |
2605 | MODULE_PARM_DESC(debug, "Debugging level"); |
2606 | ||
2607 | module_init(at76_mod_init); | |
2608 | module_exit(at76_mod_exit); | |
2609 | ||
2610 | MODULE_AUTHOR("Oliver Kurth <oku@masqmail.cx>"); | |
2611 | MODULE_AUTHOR("Joerg Albert <joerg.albert@gmx.de>"); | |
2612 | MODULE_AUTHOR("Alex <alex@foogod.com>"); | |
2613 | MODULE_AUTHOR("Nick Jones"); | |
2614 | MODULE_AUTHOR("Balint Seeber <n0_5p4m_p13453@hotmail.com>"); | |
2615 | MODULE_AUTHOR("Pavel Roskin <proski@gnu.org>"); | |
2616 | MODULE_AUTHOR("Guido Guenther <agx@sigxcpu.org>"); | |
2617 | MODULE_AUTHOR("Kalle Valo <kalle.valo@iki.fi>"); | |
a185045c | 2618 | MODULE_AUTHOR("Sebastian Smolorz <sesmo@gmx.net>"); |
1264b951 KV |
2619 | MODULE_DESCRIPTION(DRIVER_DESC); |
2620 | MODULE_LICENSE("GPL"); |