2 * at76c503/at76c505 USB driver
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>
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License as
13 * published by the Free Software Foundation; either version 2 of
14 * the License, or (at your option) any later version.
16 * This file is part of the Berlios driver for WLAN USB devices based on the
17 * Atmel AT76C503A/505/505A.
19 * Some iw_handler code was taken from airo.c, (C) 1999 Benjamin Reed
21 * TODO list is at the wiki:
23 * http://wireless.kernel.org/en/users/Drivers/at76c50x-usb#TODO
27 #include <linux/init.h>
28 #include <linux/kernel.h>
29 #include <linux/sched.h>
30 #include <linux/errno.h>
31 #include <linux/slab.h>
32 #include <linux/module.h>
33 #include <linux/spinlock.h>
34 #include <linux/list.h>
35 #include <linux/usb.h>
36 #include <linux/netdevice.h>
37 #include <linux/if_arp.h>
38 #include <linux/etherdevice.h>
39 #include <linux/ethtool.h>
40 #include <linux/wireless.h>
41 #include <net/iw_handler.h>
42 #include <net/ieee80211_radiotap.h>
43 #include <linux/firmware.h>
44 #include <linux/leds.h>
45 #include <net/mac80211.h>
47 #include "at76c50x-usb.h"
49 /* Version information */
50 #define DRIVER_NAME "at76c50x-usb"
51 #define DRIVER_VERSION "0.17"
52 #define DRIVER_DESC "Atmel at76x USB Wireless LAN Driver"
55 #define DBG_PROGRESS 0x00000001 /* authentication/accociation */
56 #define DBG_BSS_TABLE 0x00000002 /* show BSS table after scans */
57 #define DBG_IOCTL 0x00000004 /* ioctl calls / settings */
58 #define DBG_MAC_STATE 0x00000008 /* MAC state transitions */
59 #define DBG_TX_DATA 0x00000010 /* tx header */
60 #define DBG_TX_DATA_CONTENT 0x00000020 /* tx content */
61 #define DBG_TX_MGMT 0x00000040 /* tx management */
62 #define DBG_RX_DATA 0x00000080 /* rx data header */
63 #define DBG_RX_DATA_CONTENT 0x00000100 /* rx data content */
64 #define DBG_RX_MGMT 0x00000200 /* rx mgmt frame headers */
65 #define DBG_RX_BEACON 0x00000400 /* rx beacon */
66 #define DBG_RX_CTRL 0x00000800 /* rx control */
67 #define DBG_RX_MGMT_CONTENT 0x00001000 /* rx mgmt content */
68 #define DBG_RX_FRAGS 0x00002000 /* rx data fragment handling */
69 #define DBG_DEVSTART 0x00004000 /* fw download, device start */
70 #define DBG_URB 0x00008000 /* rx urb status, ... */
71 #define DBG_RX_ATMEL_HDR 0x00010000 /* Atmel-specific Rx headers */
72 #define DBG_PROC_ENTRY 0x00020000 /* procedure entries/exits */
73 #define DBG_PM 0x00040000 /* power management settings */
74 #define DBG_BSS_MATCH 0x00080000 /* BSS match failures */
75 #define DBG_PARAMS 0x00100000 /* show configured parameters */
76 #define DBG_WAIT_COMPLETE 0x00200000 /* command completion */
77 #define DBG_RX_FRAGS_SKB 0x00400000 /* skb header of Rx fragments */
78 #define DBG_BSS_TABLE_RM 0x00800000 /* purging bss table entries */
79 #define DBG_MONITOR_MODE 0x01000000 /* monitor mode */
80 #define DBG_MIB 0x02000000 /* dump all MIBs on startup */
81 #define DBG_MGMT_TIMER 0x04000000 /* dump mgmt_timer ops */
82 #define DBG_WE_EVENTS 0x08000000 /* dump wireless events */
83 #define DBG_FW 0x10000000 /* firmware download */
84 #define DBG_DFU 0x20000000 /* device firmware upgrade */
85 #define DBG_CMD 0x40000000
86 #define DBG_MAC80211 0x80000000
88 #define DBG_DEFAULTS 0
90 /* Use our own dbg macro */
91 #define at76_dbg(bits, format, arg...) \
93 if (at76_debug & (bits)) \
94 printk(KERN_DEBUG DRIVER_NAME ": " format "\n" , \
98 #define at76_dbg_dump(bits, buf, len, format, arg...) \
100 if (at76_debug & (bits)) { \
101 printk(KERN_DEBUG DRIVER_NAME ": " format "\n" , \
103 print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, \
108 static uint at76_debug
= DBG_DEFAULTS
;
110 /* Protect against concurrent firmware loading and parsing */
111 static struct mutex fw_mutex
;
113 static struct fwentry firmwares
[] = {
115 [BOARD_503_ISL3861
] = { "atmel_at76c503-i3861.bin" },
116 [BOARD_503_ISL3863
] = { "atmel_at76c503-i3863.bin" },
117 [BOARD_503
] = { "atmel_at76c503-rfmd.bin" },
118 [BOARD_503_ACC
] = { "atmel_at76c503-rfmd-acc.bin" },
119 [BOARD_505
] = { "atmel_at76c505-rfmd.bin" },
120 [BOARD_505_2958
] = { "atmel_at76c505-rfmd2958.bin" },
121 [BOARD_505A
] = { "atmel_at76c505a-rfmd2958.bin" },
122 [BOARD_505AMX
] = { "atmel_at76c505amx-rfmd.bin" },
125 #define USB_DEVICE_DATA(__ops) .driver_info = (kernel_ulong_t)(__ops)
127 static struct usb_device_id dev_table
[] = {
131 /* Generic AT76C503/3861 device */
132 { USB_DEVICE(0x03eb, 0x7603), USB_DEVICE_DATA(BOARD_503_ISL3861
) },
133 /* Linksys WUSB11 v2.1/v2.6 */
134 { USB_DEVICE(0x066b, 0x2211), USB_DEVICE_DATA(BOARD_503_ISL3861
) },
135 /* Netgear MA101 rev. A */
136 { USB_DEVICE(0x0864, 0x4100), USB_DEVICE_DATA(BOARD_503_ISL3861
) },
137 /* Tekram U300C / Allnet ALL0193 */
138 { USB_DEVICE(0x0b3b, 0x1612), USB_DEVICE_DATA(BOARD_503_ISL3861
) },
139 /* HP HN210W J7801A */
140 { USB_DEVICE(0x03f0, 0x011c), USB_DEVICE_DATA(BOARD_503_ISL3861
) },
141 /* Sitecom/Z-Com/Zyxel M4Y-750 */
142 { USB_DEVICE(0x0cde, 0x0001), USB_DEVICE_DATA(BOARD_503_ISL3861
) },
143 /* Dynalink/Askey WLL013 (intersil) */
144 { USB_DEVICE(0x069a, 0x0320), USB_DEVICE_DATA(BOARD_503_ISL3861
) },
145 /* EZ connect 11Mpbs Wireless USB Adapter SMC2662W v1 */
146 { USB_DEVICE(0x0d5c, 0xa001), USB_DEVICE_DATA(BOARD_503_ISL3861
) },
148 { USB_DEVICE(0x04a5, 0x9000), USB_DEVICE_DATA(BOARD_503_ISL3861
) },
149 /* Addtron AWU-120, Compex WLU11 */
150 { USB_DEVICE(0x05dd, 0xff31), USB_DEVICE_DATA(BOARD_503_ISL3861
) },
151 /* Intel AP310 AnyPoint II USB */
152 { USB_DEVICE(0x8086, 0x0200), USB_DEVICE_DATA(BOARD_503_ISL3861
) },
154 { USB_DEVICE(0x0d8e, 0x7100), USB_DEVICE_DATA(BOARD_503_ISL3861
) },
155 /* Arescom WL-210, FCC id 07J-GL2411USB */
156 { USB_DEVICE(0x0d8e, 0x7110), USB_DEVICE_DATA(BOARD_503_ISL3861
) },
157 /* I-O DATA WN-B11/USB */
158 { USB_DEVICE(0x04bb, 0x0919), USB_DEVICE_DATA(BOARD_503_ISL3861
) },
159 /* BT Voyager 1010 */
160 { USB_DEVICE(0x069a, 0x0821), USB_DEVICE_DATA(BOARD_503_ISL3861
) },
164 /* Generic AT76C503/3863 device */
165 { USB_DEVICE(0x03eb, 0x7604), USB_DEVICE_DATA(BOARD_503_ISL3863
) },
166 /* Samsung SWL-2100U */
167 { USB_DEVICE(0x055d, 0xa000), USB_DEVICE_DATA(BOARD_503_ISL3863
) },
171 /* Generic AT76C503/RFMD device */
172 { USB_DEVICE(0x03eb, 0x7605), USB_DEVICE_DATA(BOARD_503
) },
173 /* Dynalink/Askey WLL013 (rfmd) */
174 { USB_DEVICE(0x069a, 0x0321), USB_DEVICE_DATA(BOARD_503
) },
175 /* Linksys WUSB11 v2.6 */
176 { USB_DEVICE(0x077b, 0x2219), USB_DEVICE_DATA(BOARD_503
) },
177 /* Network Everywhere NWU11B */
178 { USB_DEVICE(0x077b, 0x2227), USB_DEVICE_DATA(BOARD_503
) },
179 /* Netgear MA101 rev. B */
180 { USB_DEVICE(0x0864, 0x4102), USB_DEVICE_DATA(BOARD_503
) },
181 /* D-Link DWL-120 rev. E */
182 { USB_DEVICE(0x2001, 0x3200), USB_DEVICE_DATA(BOARD_503
) },
183 /* Actiontec 802UAT1, HWU01150-01UK */
184 { USB_DEVICE(0x1668, 0x7605), USB_DEVICE_DATA(BOARD_503
) },
185 /* AirVast W-Buddie WN210 */
186 { USB_DEVICE(0x03eb, 0x4102), USB_DEVICE_DATA(BOARD_503
) },
187 /* Dick Smith Electronics XH1153 802.11b USB adapter */
188 { USB_DEVICE(0x1371, 0x5743), USB_DEVICE_DATA(BOARD_503
) },
190 { USB_DEVICE(0x1371, 0x0001), USB_DEVICE_DATA(BOARD_503
) },
191 /* FiberLine FL-WL200U */
192 { USB_DEVICE(0x1371, 0x0002), USB_DEVICE_DATA(BOARD_503
) },
193 /* BenQ AWL400 USB stick */
194 { USB_DEVICE(0x04a5, 0x9001), USB_DEVICE_DATA(BOARD_503
) },
195 /* 3Com 3CRSHEW696 */
196 { USB_DEVICE(0x0506, 0x0a01), USB_DEVICE_DATA(BOARD_503
) },
197 /* Siemens Santis ADSL WLAN USB adapter WLL 013 */
198 { USB_DEVICE(0x0681, 0x001b), USB_DEVICE_DATA(BOARD_503
) },
199 /* Belkin F5D6050, version 2 */
200 { USB_DEVICE(0x050d, 0x0050), USB_DEVICE_DATA(BOARD_503
) },
201 /* iBlitzz, BWU613 (not *B or *SB) */
202 { USB_DEVICE(0x07b8, 0xb000), USB_DEVICE_DATA(BOARD_503
) },
203 /* Gigabyte GN-WLBM101 */
204 { USB_DEVICE(0x1044, 0x8003), USB_DEVICE_DATA(BOARD_503
) },
205 /* Planex GW-US11S */
206 { USB_DEVICE(0x2019, 0x3220), USB_DEVICE_DATA(BOARD_503
) },
207 /* Internal WLAN adapter in h5[4,5]xx series iPAQs */
208 { USB_DEVICE(0x049f, 0x0032), USB_DEVICE_DATA(BOARD_503
) },
209 /* Corega Wireless LAN USB-11 mini */
210 { USB_DEVICE(0x07aa, 0x0011), USB_DEVICE_DATA(BOARD_503
) },
211 /* Corega Wireless LAN USB-11 mini2 */
212 { USB_DEVICE(0x07aa, 0x0018), USB_DEVICE_DATA(BOARD_503
) },
214 { USB_DEVICE(0x05dd, 0xff35), USB_DEVICE_DATA(BOARD_503
) },
219 { USB_DEVICE(0x083a, 0x3501), USB_DEVICE_DATA(BOARD_503_ACC
) },
220 /* Belkin F5D6050, SMC2662W v2, SMC2662W-AR */
221 { USB_DEVICE(0x0d5c, 0xa002), USB_DEVICE_DATA(BOARD_503_ACC
) },
225 /* Generic AT76C505/RFMD */
226 { USB_DEVICE(0x03eb, 0x7606), USB_DEVICE_DATA(BOARD_505
) },
230 /* Generic AT76C505/RFMD, OvisLink WL-1130USB */
231 { USB_DEVICE(0x03eb, 0x7613), USB_DEVICE_DATA(BOARD_505_2958
) },
232 /* Fiberline FL-WL240U */
233 { USB_DEVICE(0x1371, 0x0014), USB_DEVICE_DATA(BOARD_505_2958
) },
234 /* CNet CNUSB-611G */
235 { USB_DEVICE(0x1371, 0x0013), USB_DEVICE_DATA(BOARD_505_2958
) },
236 /* Linksys WUSB11 v2.8 */
237 { USB_DEVICE(0x1915, 0x2233), USB_DEVICE_DATA(BOARD_505_2958
) },
238 /* Xterasys XN-2122B, IBlitzz BWU613B/BWU613SB */
239 { USB_DEVICE(0x12fd, 0x1001), USB_DEVICE_DATA(BOARD_505_2958
) },
240 /* Corega WLAN USB Stick 11 */
241 { USB_DEVICE(0x07aa, 0x7613), USB_DEVICE_DATA(BOARD_505_2958
) },
242 /* Microstar MSI Box MS6978 */
243 { USB_DEVICE(0x0db0, 0x1020), USB_DEVICE_DATA(BOARD_505_2958
) },
247 /* Generic AT76C505A device */
248 { USB_DEVICE(0x03eb, 0x7614), USB_DEVICE_DATA(BOARD_505A
) },
249 /* Generic AT76C505AS device */
250 { USB_DEVICE(0x03eb, 0x7617), USB_DEVICE_DATA(BOARD_505A
) },
251 /* Siemens Gigaset USB WLAN Adapter 11 */
252 { USB_DEVICE(0x1690, 0x0701), USB_DEVICE_DATA(BOARD_505A
) },
253 /* OQO Model 01+ Internal Wi-Fi */
254 { USB_DEVICE(0x1557, 0x0002), USB_DEVICE_DATA(BOARD_505A
) },
258 /* Generic AT76C505AMX device */
259 { USB_DEVICE(0x03eb, 0x7615), USB_DEVICE_DATA(BOARD_505AMX
) },
263 MODULE_DEVICE_TABLE(usb
, dev_table
);
265 /* Supported rates of this hardware, bit 7 marks basic rates */
266 static const u8 hw_rates
[] = { 0x82, 0x84, 0x0b, 0x16 };
268 static const char *const preambles
[] = { "long", "short", "auto" };
270 /* Firmware download */
272 #define STATE_IDLE 0x00
273 #define STATE_DETACH 0x01
274 #define STATE_DFU_IDLE 0x02
275 #define STATE_DFU_DOWNLOAD_SYNC 0x03
276 #define STATE_DFU_DOWNLOAD_BUSY 0x04
277 #define STATE_DFU_DOWNLOAD_IDLE 0x05
278 #define STATE_DFU_MANIFEST_SYNC 0x06
279 #define STATE_DFU_MANIFEST 0x07
280 #define STATE_DFU_MANIFEST_WAIT_RESET 0x08
281 #define STATE_DFU_UPLOAD_IDLE 0x09
282 #define STATE_DFU_ERROR 0x0a
288 #define DFU_GETSTATUS 3
289 #define DFU_CLRSTATUS 4
290 #define DFU_GETSTATE 5
293 #define FW_BLOCK_SIZE 1024
296 unsigned char status
;
297 unsigned char poll_timeout
[3];
299 unsigned char string
;
300 } __attribute__((packed
));
302 static inline int at76_is_intersil(enum board_type board
)
304 return (board
== BOARD_503_ISL3861
|| board
== BOARD_503_ISL3863
);
307 static inline int at76_is_503rfmd(enum board_type board
)
309 return (board
== BOARD_503
|| board
== BOARD_503_ACC
);
312 static inline int at76_is_505a(enum board_type board
)
314 return (board
== BOARD_505A
|| board
== BOARD_505AMX
);
317 /* Load a block of the first (internal) part of the firmware */
318 static int at76_load_int_fw_block(struct usb_device
*udev
, int blockno
,
319 void *block
, int size
)
321 return usb_control_msg(udev
, usb_sndctrlpipe(udev
, 0), DFU_DNLOAD
,
322 USB_TYPE_CLASS
| USB_DIR_OUT
|
323 USB_RECIP_INTERFACE
, blockno
, 0, block
, size
,
324 USB_CTRL_GET_TIMEOUT
);
327 static int at76_dfu_get_status(struct usb_device
*udev
,
328 struct dfu_status
*status
)
332 ret
= usb_control_msg(udev
, usb_rcvctrlpipe(udev
, 0), DFU_GETSTATUS
,
333 USB_TYPE_CLASS
| USB_DIR_IN
| USB_RECIP_INTERFACE
,
334 0, 0, status
, sizeof(struct dfu_status
),
335 USB_CTRL_GET_TIMEOUT
);
339 static u8
at76_dfu_get_state(struct usb_device
*udev
, u8
*state
)
343 ret
= usb_control_msg(udev
, usb_rcvctrlpipe(udev
, 0), DFU_GETSTATE
,
344 USB_TYPE_CLASS
| USB_DIR_IN
| USB_RECIP_INTERFACE
,
345 0, 0, state
, 1, USB_CTRL_GET_TIMEOUT
);
349 /* Convert timeout from the DFU status to jiffies */
350 static inline unsigned long at76_get_timeout(struct dfu_status
*s
)
352 return msecs_to_jiffies((s
->poll_timeout
[2] << 16)
353 | (s
->poll_timeout
[1] << 8)
354 | (s
->poll_timeout
[0]));
357 /* Load internal firmware from the buffer. If manifest_sync_timeout > 0, use
358 * its value in jiffies in the MANIFEST_SYNC state. */
359 static int at76_usbdfu_download(struct usb_device
*udev
, u8
*buf
, u32 size
,
360 int manifest_sync_timeout
)
363 struct dfu_status dfu_stat_buf
;
365 int need_dfu_state
= 1;
372 at76_dbg(DBG_DFU
, "%s( %p, %u, %d)", __func__
, buf
, size
,
373 manifest_sync_timeout
);
376 dev_printk(KERN_ERR
, &udev
->dev
, "FW buffer length invalid!\n");
380 block
= kmalloc(FW_BLOCK_SIZE
, GFP_KERNEL
);
385 if (need_dfu_state
) {
386 ret
= at76_dfu_get_state(udev
, &dfu_state
);
388 dev_printk(KERN_ERR
, &udev
->dev
,
389 "cannot get DFU state: %d\n", ret
);
396 case STATE_DFU_DOWNLOAD_SYNC
:
397 at76_dbg(DBG_DFU
, "STATE_DFU_DOWNLOAD_SYNC");
398 ret
= at76_dfu_get_status(udev
, &dfu_stat_buf
);
400 dfu_state
= dfu_stat_buf
.state
;
401 dfu_timeout
= at76_get_timeout(&dfu_stat_buf
);
404 dev_printk(KERN_ERR
, &udev
->dev
,
405 "at76_dfu_get_status returned %d\n",
409 case STATE_DFU_DOWNLOAD_BUSY
:
410 at76_dbg(DBG_DFU
, "STATE_DFU_DOWNLOAD_BUSY");
413 at76_dbg(DBG_DFU
, "DFU: Resetting device");
414 schedule_timeout_interruptible(dfu_timeout
);
417 case STATE_DFU_DOWNLOAD_IDLE
:
418 at76_dbg(DBG_DFU
, "DOWNLOAD...");
421 at76_dbg(DBG_DFU
, "DFU IDLE");
423 bsize
= min_t(int, size
, FW_BLOCK_SIZE
);
424 memcpy(block
, buf
, bsize
);
425 at76_dbg(DBG_DFU
, "int fw, size left = %5d, "
426 "bsize = %4d, blockno = %2d", size
, bsize
,
429 at76_load_int_fw_block(udev
, blockno
, block
, bsize
);
435 dev_printk(KERN_ERR
, &udev
->dev
,
436 "at76_load_int_fw_block "
437 "returned %d\n", ret
);
441 case STATE_DFU_MANIFEST_SYNC
:
442 at76_dbg(DBG_DFU
, "STATE_DFU_MANIFEST_SYNC");
444 ret
= at76_dfu_get_status(udev
, &dfu_stat_buf
);
448 dfu_state
= dfu_stat_buf
.state
;
449 dfu_timeout
= at76_get_timeout(&dfu_stat_buf
);
452 /* override the timeout from the status response,
453 needed for AT76C505A */
454 if (manifest_sync_timeout
> 0)
455 dfu_timeout
= manifest_sync_timeout
;
457 at76_dbg(DBG_DFU
, "DFU: Waiting for manifest phase");
458 schedule_timeout_interruptible(dfu_timeout
);
461 case STATE_DFU_MANIFEST
:
462 at76_dbg(DBG_DFU
, "STATE_DFU_MANIFEST");
466 case STATE_DFU_MANIFEST_WAIT_RESET
:
467 at76_dbg(DBG_DFU
, "STATE_DFU_MANIFEST_WAIT_RESET");
471 case STATE_DFU_UPLOAD_IDLE
:
472 at76_dbg(DBG_DFU
, "STATE_DFU_UPLOAD_IDLE");
475 case STATE_DFU_ERROR
:
476 at76_dbg(DBG_DFU
, "STATE_DFU_ERROR");
481 at76_dbg(DBG_DFU
, "DFU UNKNOWN STATE (%d)", dfu_state
);
485 } while (!is_done
&& (ret
>= 0));
495 #define HEX2STR_BUFFERS 4
496 #define HEX2STR_MAX_LEN 64
497 #define BIN2HEX(x) ((x) < 10 ? '0' + (x) : (x) + 'A' - 10)
499 /* Convert binary data into hex string */
500 static char *hex2str(void *buf
, int len
)
502 static atomic_t a
= ATOMIC_INIT(0);
503 static char bufs
[HEX2STR_BUFFERS
][3 * HEX2STR_MAX_LEN
+ 1];
504 char *ret
= bufs
[atomic_inc_return(&a
) & (HEX2STR_BUFFERS
- 1)];
508 if (len
> HEX2STR_MAX_LEN
)
509 len
= HEX2STR_MAX_LEN
;
517 *obuf
++ = BIN2HEX(*ibuf
>> 4);
518 *obuf
++ = BIN2HEX(*ibuf
& 0xf);
527 #define MAC2STR_BUFFERS 4
529 static inline char *mac2str(u8
*mac
)
531 static atomic_t a
= ATOMIC_INIT(0);
532 static char bufs
[MAC2STR_BUFFERS
][6 * 3];
535 str
= bufs
[atomic_inc_return(&a
) & (MAC2STR_BUFFERS
- 1)];
536 sprintf(str
, "%02x:%02x:%02x:%02x:%02x:%02x",
537 mac
[0], mac
[1], mac
[2], mac
[3], mac
[4], mac
[5]);
542 static int tx_activity
;
543 static void at76_ledtrig_tx_timerfunc(unsigned long data
);
544 static DEFINE_TIMER(ledtrig_tx_timer
, at76_ledtrig_tx_timerfunc
, 0, 0);
545 DEFINE_LED_TRIGGER(ledtrig_tx
);
547 static void at76_ledtrig_tx_timerfunc(unsigned long data
)
549 static int tx_lastactivity
;
551 if (tx_lastactivity
!= tx_activity
) {
552 tx_lastactivity
= tx_activity
;
553 led_trigger_event(ledtrig_tx
, LED_FULL
);
554 mod_timer(&ledtrig_tx_timer
, jiffies
+ HZ
/ 4);
556 led_trigger_event(ledtrig_tx
, LED_OFF
);
559 static void at76_ledtrig_tx_activity(void)
562 if (!timer_pending(&ledtrig_tx_timer
))
563 mod_timer(&ledtrig_tx_timer
, jiffies
+ HZ
/ 4);
566 static int at76_remap(struct usb_device
*udev
)
569 ret
= usb_control_msg(udev
, usb_sndctrlpipe(udev
, 0), 0x0a,
570 USB_TYPE_VENDOR
| USB_DIR_OUT
|
571 USB_RECIP_INTERFACE
, 0, 0, NULL
, 0,
572 USB_CTRL_GET_TIMEOUT
);
578 static int at76_get_op_mode(struct usb_device
*udev
)
584 op_mode
= kmalloc(1, GFP_NOIO
);
587 ret
= usb_control_msg(udev
, usb_rcvctrlpipe(udev
, 0), 0x33,
588 USB_TYPE_VENDOR
| USB_DIR_IN
|
589 USB_RECIP_INTERFACE
, 0x01, 0, op_mode
, 1,
590 USB_CTRL_GET_TIMEOUT
);
602 /* Load a block of the second ("external") part of the firmware */
603 static inline int at76_load_ext_fw_block(struct usb_device
*udev
, int blockno
,
604 void *block
, int size
)
606 return usb_control_msg(udev
, usb_sndctrlpipe(udev
, 0), 0x0e,
607 USB_TYPE_VENDOR
| USB_DIR_OUT
| USB_RECIP_DEVICE
,
608 0x0802, blockno
, block
, size
,
609 USB_CTRL_GET_TIMEOUT
);
612 static inline int at76_get_hw_cfg(struct usb_device
*udev
,
613 union at76_hwcfg
*buf
, int buf_size
)
615 return usb_control_msg(udev
, usb_rcvctrlpipe(udev
, 0), 0x33,
616 USB_TYPE_VENDOR
| USB_DIR_IN
|
617 USB_RECIP_INTERFACE
, 0x0a02, 0,
618 buf
, buf_size
, USB_CTRL_GET_TIMEOUT
);
621 /* Intersil boards use a different "value" for GetHWConfig requests */
622 static inline int at76_get_hw_cfg_intersil(struct usb_device
*udev
,
623 union at76_hwcfg
*buf
, int buf_size
)
625 return usb_control_msg(udev
, usb_rcvctrlpipe(udev
, 0), 0x33,
626 USB_TYPE_VENDOR
| USB_DIR_IN
|
627 USB_RECIP_INTERFACE
, 0x0902, 0,
628 buf
, buf_size
, USB_CTRL_GET_TIMEOUT
);
631 /* Get the hardware configuration for the adapter and put it to the appropriate
632 * fields of 'priv' (the GetHWConfig request and interpretation of the result
633 * depends on the board type) */
634 static int at76_get_hw_config(struct at76_priv
*priv
)
637 union at76_hwcfg
*hwcfg
= kmalloc(sizeof(*hwcfg
), GFP_KERNEL
);
642 if (at76_is_intersil(priv
->board_type
)) {
643 ret
= at76_get_hw_cfg_intersil(priv
->udev
, hwcfg
,
647 memcpy(priv
->mac_addr
, hwcfg
->i
.mac_addr
, ETH_ALEN
);
648 priv
->regulatory_domain
= hwcfg
->i
.regulatory_domain
;
649 } else if (at76_is_503rfmd(priv
->board_type
)) {
650 ret
= at76_get_hw_cfg(priv
->udev
, hwcfg
, sizeof(hwcfg
->r3
));
653 memcpy(priv
->mac_addr
, hwcfg
->r3
.mac_addr
, ETH_ALEN
);
654 priv
->regulatory_domain
= hwcfg
->r3
.regulatory_domain
;
656 ret
= at76_get_hw_cfg(priv
->udev
, hwcfg
, sizeof(hwcfg
->r5
));
659 memcpy(priv
->mac_addr
, hwcfg
->r5
.mac_addr
, ETH_ALEN
);
660 priv
->regulatory_domain
= hwcfg
->r5
.regulatory_domain
;
666 printk(KERN_ERR
"%s: cannot get HW Config (error %d)\n",
667 wiphy_name(priv
->hw
->wiphy
), ret
);
672 static struct reg_domain
const *at76_get_reg_domain(u16 code
)
675 static struct reg_domain
const fd_tab
[] = {
676 { 0x10, "FCC (USA)", 0x7ff }, /* ch 1-11 */
677 { 0x20, "IC (Canada)", 0x7ff }, /* ch 1-11 */
678 { 0x30, "ETSI (most of Europe)", 0x1fff }, /* ch 1-13 */
679 { 0x31, "Spain", 0x600 }, /* ch 10-11 */
680 { 0x32, "France", 0x1e00 }, /* ch 10-13 */
681 { 0x40, "MKK (Japan)", 0x2000 }, /* ch 14 */
682 { 0x41, "MKK1 (Japan)", 0x3fff }, /* ch 1-14 */
683 { 0x50, "Israel", 0x3fc }, /* ch 3-9 */
684 { 0x00, "<unknown>", 0xffffffff } /* ch 1-32 */
687 /* Last entry is fallback for unknown domain code */
688 for (i
= 0; i
< ARRAY_SIZE(fd_tab
) - 1; i
++)
689 if (code
== fd_tab
[i
].code
)
695 static inline int at76_get_mib(struct usb_device
*udev
, u16 mib
, void *buf
,
700 ret
= usb_control_msg(udev
, usb_rcvctrlpipe(udev
, 0), 0x33,
701 USB_TYPE_VENDOR
| USB_DIR_IN
|
702 USB_RECIP_INTERFACE
, mib
<< 8, 0, buf
, buf_size
,
703 USB_CTRL_GET_TIMEOUT
);
704 if (ret
>= 0 && ret
!= buf_size
)
709 /* Return positive number for status, negative for an error */
710 static inline int at76_get_cmd_status(struct usb_device
*udev
, u8 cmd
)
715 stat_buf
= kmalloc(40, GFP_NOIO
);
719 ret
= usb_control_msg(udev
, usb_rcvctrlpipe(udev
, 0), 0x22,
720 USB_TYPE_VENDOR
| USB_DIR_IN
|
721 USB_RECIP_INTERFACE
, cmd
, 0, stat_buf
,
722 40, USB_CTRL_GET_TIMEOUT
);
730 #define MAKE_CMD_CASE(c) case (c): return #c
731 static const char *at76_get_cmd_string(u8 cmd_status
)
733 switch (cmd_status
) {
734 MAKE_CMD_CASE(CMD_SET_MIB
);
735 MAKE_CMD_CASE(CMD_GET_MIB
);
736 MAKE_CMD_CASE(CMD_SCAN
);
737 MAKE_CMD_CASE(CMD_JOIN
);
738 MAKE_CMD_CASE(CMD_START_IBSS
);
739 MAKE_CMD_CASE(CMD_RADIO_ON
);
740 MAKE_CMD_CASE(CMD_RADIO_OFF
);
741 MAKE_CMD_CASE(CMD_STARTUP
);
747 static int at76_set_card_command(struct usb_device
*udev
, u8 cmd
, void *buf
,
751 struct at76_command
*cmd_buf
= kmalloc(sizeof(struct at76_command
) +
752 buf_size
, GFP_KERNEL
);
758 cmd_buf
->reserved
= 0;
759 cmd_buf
->size
= cpu_to_le16(buf_size
);
760 memcpy(cmd_buf
->data
, buf
, buf_size
);
762 at76_dbg_dump(DBG_CMD
, cmd_buf
, sizeof(struct at76_command
) + buf_size
,
763 "issuing command %s (0x%02x)",
764 at76_get_cmd_string(cmd
), cmd
);
766 ret
= usb_control_msg(udev
, usb_sndctrlpipe(udev
, 0), 0x0e,
767 USB_TYPE_VENDOR
| USB_DIR_OUT
| USB_RECIP_DEVICE
,
769 sizeof(struct at76_command
) + buf_size
,
770 USB_CTRL_GET_TIMEOUT
);
775 #define MAKE_CMD_STATUS_CASE(c) case (c): return #c
776 static const char *at76_get_cmd_status_string(u8 cmd_status
)
778 switch (cmd_status
) {
779 MAKE_CMD_STATUS_CASE(CMD_STATUS_IDLE
);
780 MAKE_CMD_STATUS_CASE(CMD_STATUS_COMPLETE
);
781 MAKE_CMD_STATUS_CASE(CMD_STATUS_UNKNOWN
);
782 MAKE_CMD_STATUS_CASE(CMD_STATUS_INVALID_PARAMETER
);
783 MAKE_CMD_STATUS_CASE(CMD_STATUS_FUNCTION_NOT_SUPPORTED
);
784 MAKE_CMD_STATUS_CASE(CMD_STATUS_TIME_OUT
);
785 MAKE_CMD_STATUS_CASE(CMD_STATUS_IN_PROGRESS
);
786 MAKE_CMD_STATUS_CASE(CMD_STATUS_HOST_FAILURE
);
787 MAKE_CMD_STATUS_CASE(CMD_STATUS_SCAN_FAILED
);
793 /* Wait until the command is completed */
794 static int at76_wait_completion(struct at76_priv
*priv
, int cmd
)
797 unsigned long timeout
= jiffies
+ CMD_COMPLETION_TIMEOUT
;
800 status
= at76_get_cmd_status(priv
->udev
, cmd
);
802 printk(KERN_ERR
"%s: at76_get_cmd_status failed: %d\n",
803 wiphy_name(priv
->hw
->wiphy
), status
);
807 at76_dbg(DBG_WAIT_COMPLETE
,
808 "%s: Waiting on cmd %d, status = %d (%s)",
809 wiphy_name(priv
->hw
->wiphy
), cmd
, status
,
810 at76_get_cmd_status_string(status
));
812 if (status
!= CMD_STATUS_IN_PROGRESS
813 && status
!= CMD_STATUS_IDLE
)
816 schedule_timeout_interruptible(HZ
/ 10); /* 100 ms */
817 if (time_after(jiffies
, timeout
)) {
819 "%s: completion timeout for command %d\n",
820 wiphy_name(priv
->hw
->wiphy
), cmd
);
829 static int at76_set_mib(struct at76_priv
*priv
, struct set_mib_buffer
*buf
)
833 ret
= at76_set_card_command(priv
->udev
, CMD_SET_MIB
, buf
,
834 offsetof(struct set_mib_buffer
,
839 ret
= at76_wait_completion(priv
, CMD_SET_MIB
);
840 if (ret
!= CMD_STATUS_COMPLETE
) {
842 "%s: set_mib: at76_wait_completion failed "
843 "with %d\n", wiphy_name(priv
->hw
->wiphy
), ret
);
850 /* Return < 0 on error, == 0 if no command sent, == 1 if cmd sent */
851 static int at76_set_radio(struct at76_priv
*priv
, int enable
)
856 if (priv
->radio_on
== enable
)
859 cmd
= enable
? CMD_RADIO_ON
: CMD_RADIO_OFF
;
861 ret
= at76_set_card_command(priv
->udev
, cmd
, NULL
, 0);
863 printk(KERN_ERR
"%s: at76_set_card_command(%d) failed: %d\n",
864 wiphy_name(priv
->hw
->wiphy
), cmd
, ret
);
868 priv
->radio_on
= enable
;
872 /* Set current power save mode (AT76_PM_OFF/AT76_PM_ON/AT76_PM_SMART) */
873 static int at76_set_pm_mode(struct at76_priv
*priv
)
877 priv
->mib_buf
.type
= MIB_MAC_MGMT
;
878 priv
->mib_buf
.size
= 1;
879 priv
->mib_buf
.index
= offsetof(struct mib_mac_mgmt
, power_mgmt_mode
);
880 priv
->mib_buf
.data
.byte
= priv
->pm_mode
;
882 ret
= at76_set_mib(priv
, &priv
->mib_buf
);
884 printk(KERN_ERR
"%s: set_mib (pm_mode) failed: %d\n",
885 wiphy_name(priv
->hw
->wiphy
), ret
);
890 static int at76_set_preamble(struct at76_priv
*priv
, u8 type
)
894 priv
->mib_buf
.type
= MIB_LOCAL
;
895 priv
->mib_buf
.size
= 1;
896 priv
->mib_buf
.index
= offsetof(struct mib_local
, preamble_type
);
897 priv
->mib_buf
.data
.byte
= type
;
899 ret
= at76_set_mib(priv
, &priv
->mib_buf
);
901 printk(KERN_ERR
"%s: set_mib (preamble) failed: %d\n",
902 wiphy_name(priv
->hw
->wiphy
), ret
);
907 static int at76_set_frag(struct at76_priv
*priv
, u16 size
)
911 priv
->mib_buf
.type
= MIB_MAC
;
912 priv
->mib_buf
.size
= 2;
913 priv
->mib_buf
.index
= offsetof(struct mib_mac
, frag_threshold
);
914 priv
->mib_buf
.data
.word
= cpu_to_le16(size
);
916 ret
= at76_set_mib(priv
, &priv
->mib_buf
);
918 printk(KERN_ERR
"%s: set_mib (frag threshold) failed: %d\n",
919 wiphy_name(priv
->hw
->wiphy
), ret
);
924 static int at76_set_rts(struct at76_priv
*priv
, u16 size
)
928 priv
->mib_buf
.type
= MIB_MAC
;
929 priv
->mib_buf
.size
= 2;
930 priv
->mib_buf
.index
= offsetof(struct mib_mac
, rts_threshold
);
931 priv
->mib_buf
.data
.word
= cpu_to_le16(size
);
933 ret
= at76_set_mib(priv
, &priv
->mib_buf
);
935 printk(KERN_ERR
"%s: set_mib (rts) failed: %d\n",
936 wiphy_name(priv
->hw
->wiphy
), ret
);
941 static int at76_set_autorate_fallback(struct at76_priv
*priv
, int onoff
)
945 priv
->mib_buf
.type
= MIB_LOCAL
;
946 priv
->mib_buf
.size
= 1;
947 priv
->mib_buf
.index
= offsetof(struct mib_local
, txautorate_fallback
);
948 priv
->mib_buf
.data
.byte
= onoff
;
950 ret
= at76_set_mib(priv
, &priv
->mib_buf
);
952 printk(KERN_ERR
"%s: set_mib (autorate fallback) failed: %d\n",
953 wiphy_name(priv
->hw
->wiphy
), ret
);
958 static void at76_dump_mib_mac_addr(struct at76_priv
*priv
)
962 struct mib_mac_addr
*m
= kmalloc(sizeof(struct mib_mac_addr
),
968 ret
= at76_get_mib(priv
->udev
, MIB_MAC_ADDR
, m
,
969 sizeof(struct mib_mac_addr
));
971 printk(KERN_ERR
"%s: at76_get_mib (MAC_ADDR) failed: %d\n",
972 wiphy_name(priv
->hw
->wiphy
), ret
);
976 at76_dbg(DBG_MIB
, "%s: MIB MAC_ADDR: mac_addr %s res 0x%x 0x%x",
977 wiphy_name(priv
->hw
->wiphy
),
978 mac2str(m
->mac_addr
), m
->res
[0], m
->res
[1]);
979 for (i
= 0; i
< ARRAY_SIZE(m
->group_addr
); i
++)
980 at76_dbg(DBG_MIB
, "%s: MIB MAC_ADDR: group addr %d: %s, "
981 "status %d", wiphy_name(priv
->hw
->wiphy
), i
,
982 mac2str(m
->group_addr
[i
]), m
->group_addr_status
[i
]);
987 static void at76_dump_mib_mac_wep(struct at76_priv
*priv
)
992 struct mib_mac_wep
*m
= kmalloc(sizeof(struct mib_mac_wep
), GFP_KERNEL
);
997 ret
= at76_get_mib(priv
->udev
, MIB_MAC_WEP
, m
,
998 sizeof(struct mib_mac_wep
));
1000 printk(KERN_ERR
"%s: at76_get_mib (MAC_WEP) failed: %d\n",
1001 wiphy_name(priv
->hw
->wiphy
), ret
);
1005 at76_dbg(DBG_MIB
, "%s: MIB MAC_WEP: priv_invoked %u def_key_id %u "
1006 "key_len %u excl_unencr %u wep_icv_err %u wep_excluded %u "
1007 "encr_level %u key %d", wiphy_name(priv
->hw
->wiphy
),
1008 m
->privacy_invoked
, m
->wep_default_key_id
,
1009 m
->wep_key_mapping_len
, m
->exclude_unencrypted
,
1010 le32_to_cpu(m
->wep_icv_error_count
),
1011 le32_to_cpu(m
->wep_excluded_count
), m
->encryption_level
,
1012 m
->wep_default_key_id
);
1014 key_len
= (m
->encryption_level
== 1) ?
1015 WEP_SMALL_KEY_LEN
: WEP_LARGE_KEY_LEN
;
1017 for (i
= 0; i
< WEP_KEYS
; i
++)
1018 at76_dbg(DBG_MIB
, "%s: MIB MAC_WEP: key %d: %s",
1019 wiphy_name(priv
->hw
->wiphy
), i
,
1020 hex2str(m
->wep_default_keyvalue
[i
], key_len
));
1025 static void at76_dump_mib_mac_mgmt(struct at76_priv
*priv
)
1028 struct mib_mac_mgmt
*m
= kmalloc(sizeof(struct mib_mac_mgmt
),
1034 ret
= at76_get_mib(priv
->udev
, MIB_MAC_MGMT
, m
,
1035 sizeof(struct mib_mac_mgmt
));
1037 printk(KERN_ERR
"%s: at76_get_mib (MAC_MGMT) failed: %d\n",
1038 wiphy_name(priv
->hw
->wiphy
), ret
);
1042 at76_dbg(DBG_MIB
, "%s: MIB MAC_MGMT: beacon_period %d CFP_max_duration "
1043 "%d medium_occupancy_limit %d station_id 0x%x ATIM_window %d "
1044 "CFP_mode %d privacy_opt_impl %d DTIM_period %d CFP_period %d "
1045 "current_bssid %s current_essid %s current_bss_type %d "
1046 "pm_mode %d ibss_change %d res %d "
1047 "multi_domain_capability_implemented %d "
1048 "international_roaming %d country_string %.3s",
1049 wiphy_name(priv
->hw
->wiphy
), le16_to_cpu(m
->beacon_period
),
1050 le16_to_cpu(m
->CFP_max_duration
),
1051 le16_to_cpu(m
->medium_occupancy_limit
),
1052 le16_to_cpu(m
->station_id
), le16_to_cpu(m
->ATIM_window
),
1053 m
->CFP_mode
, m
->privacy_option_implemented
, m
->DTIM_period
,
1054 m
->CFP_period
, mac2str(m
->current_bssid
),
1055 hex2str(m
->current_essid
, IW_ESSID_MAX_SIZE
),
1056 m
->current_bss_type
, m
->power_mgmt_mode
, m
->ibss_change
,
1057 m
->res
, m
->multi_domain_capability_implemented
,
1058 m
->multi_domain_capability_enabled
, m
->country_string
);
1063 static void at76_dump_mib_mac(struct at76_priv
*priv
)
1066 struct mib_mac
*m
= kmalloc(sizeof(struct mib_mac
), GFP_KERNEL
);
1071 ret
= at76_get_mib(priv
->udev
, MIB_MAC
, m
, sizeof(struct mib_mac
));
1073 printk(KERN_ERR
"%s: at76_get_mib (MAC) failed: %d\n",
1074 wiphy_name(priv
->hw
->wiphy
), ret
);
1078 at76_dbg(DBG_MIB
, "%s: MIB MAC: max_tx_msdu_lifetime %d "
1079 "max_rx_lifetime %d frag_threshold %d rts_threshold %d "
1080 "cwmin %d cwmax %d short_retry_time %d long_retry_time %d "
1081 "scan_type %d scan_channel %d probe_delay %u "
1082 "min_channel_time %d max_channel_time %d listen_int %d "
1083 "desired_ssid %s desired_bssid %s desired_bsstype %d",
1084 wiphy_name(priv
->hw
->wiphy
),
1085 le32_to_cpu(m
->max_tx_msdu_lifetime
),
1086 le32_to_cpu(m
->max_rx_lifetime
),
1087 le16_to_cpu(m
->frag_threshold
), le16_to_cpu(m
->rts_threshold
),
1088 le16_to_cpu(m
->cwmin
), le16_to_cpu(m
->cwmax
),
1089 m
->short_retry_time
, m
->long_retry_time
, m
->scan_type
,
1090 m
->scan_channel
, le16_to_cpu(m
->probe_delay
),
1091 le16_to_cpu(m
->min_channel_time
),
1092 le16_to_cpu(m
->max_channel_time
),
1093 le16_to_cpu(m
->listen_interval
),
1094 hex2str(m
->desired_ssid
, IW_ESSID_MAX_SIZE
),
1095 mac2str(m
->desired_bssid
), m
->desired_bsstype
);
1100 static void at76_dump_mib_phy(struct at76_priv
*priv
)
1103 struct mib_phy
*m
= kmalloc(sizeof(struct mib_phy
), GFP_KERNEL
);
1108 ret
= at76_get_mib(priv
->udev
, MIB_PHY
, m
, sizeof(struct mib_phy
));
1110 printk(KERN_ERR
"%s: at76_get_mib (PHY) failed: %d\n",
1111 wiphy_name(priv
->hw
->wiphy
), ret
);
1115 at76_dbg(DBG_MIB
, "%s: MIB PHY: ed_threshold %d slot_time %d "
1116 "sifs_time %d preamble_length %d plcp_header_length %d "
1117 "mpdu_max_length %d cca_mode_supported %d operation_rate_set "
1118 "0x%x 0x%x 0x%x 0x%x channel_id %d current_cca_mode %d "
1119 "phy_type %d current_reg_domain %d",
1120 wiphy_name(priv
->hw
->wiphy
), le32_to_cpu(m
->ed_threshold
),
1121 le16_to_cpu(m
->slot_time
), le16_to_cpu(m
->sifs_time
),
1122 le16_to_cpu(m
->preamble_length
),
1123 le16_to_cpu(m
->plcp_header_length
),
1124 le16_to_cpu(m
->mpdu_max_length
),
1125 le16_to_cpu(m
->cca_mode_supported
), m
->operation_rate_set
[0],
1126 m
->operation_rate_set
[1], m
->operation_rate_set
[2],
1127 m
->operation_rate_set
[3], m
->channel_id
, m
->current_cca_mode
,
1128 m
->phy_type
, m
->current_reg_domain
);
1133 static void at76_dump_mib_local(struct at76_priv
*priv
)
1136 struct mib_local
*m
= kmalloc(sizeof(struct mib_phy
), GFP_KERNEL
);
1141 ret
= at76_get_mib(priv
->udev
, MIB_LOCAL
, m
, sizeof(struct mib_local
));
1143 printk(KERN_ERR
"%s: at76_get_mib (LOCAL) failed: %d\n",
1144 wiphy_name(priv
->hw
->wiphy
), ret
);
1148 at76_dbg(DBG_MIB
, "%s: MIB LOCAL: beacon_enable %d "
1149 "txautorate_fallback %d ssid_size %d promiscuous_mode %d "
1150 "preamble_type %d", wiphy_name(priv
->hw
->wiphy
),
1152 m
->txautorate_fallback
, m
->ssid_size
, m
->promiscuous_mode
,
1158 static void at76_dump_mib_mdomain(struct at76_priv
*priv
)
1161 struct mib_mdomain
*m
= kmalloc(sizeof(struct mib_mdomain
), GFP_KERNEL
);
1166 ret
= at76_get_mib(priv
->udev
, MIB_MDOMAIN
, m
,
1167 sizeof(struct mib_mdomain
));
1169 printk(KERN_ERR
"%s: at76_get_mib (MDOMAIN) failed: %d\n",
1170 wiphy_name(priv
->hw
->wiphy
), ret
);
1174 at76_dbg(DBG_MIB
, "%s: MIB MDOMAIN: channel_list %s",
1175 wiphy_name(priv
->hw
->wiphy
),
1176 hex2str(m
->channel_list
, sizeof(m
->channel_list
)));
1178 at76_dbg(DBG_MIB
, "%s: MIB MDOMAIN: tx_powerlevel %s",
1179 wiphy_name(priv
->hw
->wiphy
),
1180 hex2str(m
->tx_powerlevel
, sizeof(m
->tx_powerlevel
)));
1185 /* Enable monitor mode */
1186 static int at76_start_monitor(struct at76_priv
*priv
)
1188 struct at76_req_scan scan
;
1191 memset(&scan
, 0, sizeof(struct at76_req_scan
));
1192 memset(scan
.bssid
, 0xff, ETH_ALEN
);
1194 scan
.channel
= priv
->channel
;
1195 scan
.scan_type
= SCAN_TYPE_PASSIVE
;
1196 scan
.international_scan
= 0;
1198 ret
= at76_set_card_command(priv
->udev
, CMD_SCAN
, &scan
, sizeof(scan
));
1200 ret
= at76_get_cmd_status(priv
->udev
, CMD_SCAN
);
1205 /* Calculate padding from txbuf->wlength (which excludes the USB TX header),
1206 likely to compensate a flaw in the AT76C503A USB part ... */
1207 static inline int at76_calc_padding(int wlen
)
1209 /* add the USB TX header */
1210 wlen
+= AT76_TX_HDRLEN
;
1218 return 64 + 50 - wlen
;
1223 static void at76_rx_callback(struct urb
*urb
)
1225 struct at76_priv
*priv
= urb
->context
;
1227 priv
->rx_tasklet
.data
= (unsigned long)urb
;
1228 tasklet_schedule(&priv
->rx_tasklet
);
1232 static int at76_submit_rx_urb(struct at76_priv
*priv
)
1236 struct sk_buff
*skb
= priv
->rx_skb
;
1238 if (!priv
->rx_urb
) {
1239 printk(KERN_ERR
"%s: %s: priv->rx_urb is NULL\n",
1240 wiphy_name(priv
->hw
->wiphy
), __func__
);
1245 skb
= dev_alloc_skb(sizeof(struct at76_rx_buffer
));
1247 printk(KERN_ERR
"%s: cannot allocate rx skbuff\n",
1248 wiphy_name(priv
->hw
->wiphy
));
1254 skb_push(skb
, skb_headroom(skb
));
1258 size
= skb_tailroom(skb
);
1259 usb_fill_bulk_urb(priv
->rx_urb
, priv
->udev
, priv
->rx_pipe
,
1260 skb_put(skb
, size
), size
, at76_rx_callback
, priv
);
1261 ret
= usb_submit_urb(priv
->rx_urb
, GFP_ATOMIC
);
1264 at76_dbg(DBG_DEVSTART
,
1265 "usb_submit_urb returned -ENODEV");
1267 printk(KERN_ERR
"%s: rx, usb_submit_urb failed: %d\n",
1268 wiphy_name(priv
->hw
->wiphy
), ret
);
1272 if (ret
< 0 && ret
!= -ENODEV
)
1273 printk(KERN_ERR
"%s: cannot submit rx urb - please unload the "
1274 "driver and/or power cycle the device\n",
1275 wiphy_name(priv
->hw
->wiphy
));
1280 /* Download external firmware */
1281 static int at76_load_external_fw(struct usb_device
*udev
, struct fwentry
*fwe
)
1288 u8
*buf
= fwe
->extfw
;
1289 int size
= fwe
->extfw_size
;
1294 op_mode
= at76_get_op_mode(udev
);
1295 at76_dbg(DBG_DEVSTART
, "opmode %d", op_mode
);
1297 if (op_mode
!= OPMODE_NORMAL_NIC_WITHOUT_FLASH
) {
1298 dev_printk(KERN_ERR
, &udev
->dev
, "unexpected opmode %d\n",
1303 block
= kmalloc(FW_BLOCK_SIZE
, GFP_KERNEL
);
1307 at76_dbg(DBG_DEVSTART
, "downloading external firmware");
1309 /* for fw >= 0.100, the device needs an extra empty block */
1311 bsize
= min_t(int, size
, FW_BLOCK_SIZE
);
1312 memcpy(block
, buf
, bsize
);
1313 at76_dbg(DBG_DEVSTART
,
1314 "ext fw, size left = %5d, bsize = %4d, blockno = %2d",
1315 size
, bsize
, blockno
);
1316 ret
= at76_load_ext_fw_block(udev
, blockno
, block
, bsize
);
1318 dev_printk(KERN_ERR
, &udev
->dev
,
1319 "loading %dth firmware block failed: %d\n",
1326 } while (bsize
> 0);
1328 if (at76_is_505a(fwe
->board_type
)) {
1329 at76_dbg(DBG_DEVSTART
, "200 ms delay for 505a");
1330 schedule_timeout_interruptible(HZ
/ 5 + 1);
1336 dev_printk(KERN_ERR
, &udev
->dev
,
1337 "downloading external firmware failed: %d\n", ret
);
1341 /* Download internal firmware */
1342 static int at76_load_internal_fw(struct usb_device
*udev
, struct fwentry
*fwe
)
1345 int need_remap
= !at76_is_505a(fwe
->board_type
);
1347 ret
= at76_usbdfu_download(udev
, fwe
->intfw
, fwe
->intfw_size
,
1348 need_remap
? 0 : 2 * HZ
);
1351 dev_printk(KERN_ERR
, &udev
->dev
,
1352 "downloading internal fw failed with %d\n", ret
);
1356 at76_dbg(DBG_DEVSTART
, "sending REMAP");
1358 /* no REMAP for 505A (see SF driver) */
1360 ret
= at76_remap(udev
);
1362 dev_printk(KERN_ERR
, &udev
->dev
,
1363 "sending REMAP failed with %d\n", ret
);
1368 at76_dbg(DBG_DEVSTART
, "sleeping for 2 seconds");
1369 schedule_timeout_interruptible(2 * HZ
+ 1);
1370 usb_reset_device(udev
);
1376 static int at76_startup_device(struct at76_priv
*priv
)
1378 struct at76_card_config
*ccfg
= &priv
->card_config
;
1381 at76_dbg(DBG_PARAMS
,
1382 "%s param: ssid %.*s (%s) mode %s ch %d wep %s key %d "
1383 "keylen %d", wiphy_name(priv
->hw
->wiphy
), priv
->essid_size
,
1384 priv
->essid
, hex2str(priv
->essid
, IW_ESSID_MAX_SIZE
),
1385 priv
->iw_mode
== IW_MODE_ADHOC
? "adhoc" : "infra",
1386 priv
->channel
, priv
->wep_enabled
? "enabled" : "disabled",
1387 priv
->wep_key_id
, priv
->wep_keys_len
[priv
->wep_key_id
]);
1388 at76_dbg(DBG_PARAMS
,
1389 "%s param: preamble %s rts %d retry %d frag %d "
1390 "txrate %s auth_mode %d", wiphy_name(priv
->hw
->wiphy
),
1391 preambles
[priv
->preamble_type
], priv
->rts_threshold
,
1392 priv
->short_retry_limit
, priv
->frag_threshold
,
1393 priv
->txrate
== TX_RATE_1MBIT
? "1MBit" : priv
->txrate
==
1394 TX_RATE_2MBIT
? "2MBit" : priv
->txrate
==
1395 TX_RATE_5_5MBIT
? "5.5MBit" : priv
->txrate
==
1396 TX_RATE_11MBIT
? "11MBit" : priv
->txrate
==
1397 TX_RATE_AUTO
? "auto" : "<invalid>", priv
->auth_mode
);
1398 at76_dbg(DBG_PARAMS
,
1399 "%s param: pm_mode %d pm_period %d auth_mode %s "
1400 "scan_times %d %d scan_mode %s",
1401 wiphy_name(priv
->hw
->wiphy
), priv
->pm_mode
, priv
->pm_period
,
1402 priv
->auth_mode
== WLAN_AUTH_OPEN
? "open" : "shared_secret",
1403 priv
->scan_min_time
, priv
->scan_max_time
,
1404 priv
->scan_mode
== SCAN_TYPE_ACTIVE
? "active" : "passive");
1406 memset(ccfg
, 0, sizeof(struct at76_card_config
));
1407 ccfg
->promiscuous_mode
= 0;
1408 ccfg
->short_retry_limit
= priv
->short_retry_limit
;
1410 if (priv
->wep_enabled
) {
1411 if (priv
->wep_keys_len
[priv
->wep_key_id
] > WEP_SMALL_KEY_LEN
)
1412 ccfg
->encryption_type
= 2;
1414 ccfg
->encryption_type
= 1;
1416 /* jal: always exclude unencrypted if WEP is active */
1417 ccfg
->exclude_unencrypted
= 1;
1419 ccfg
->exclude_unencrypted
= 0;
1420 ccfg
->encryption_type
= 0;
1423 ccfg
->rts_threshold
= cpu_to_le16(priv
->rts_threshold
);
1424 ccfg
->fragmentation_threshold
= cpu_to_le16(priv
->frag_threshold
);
1426 memcpy(ccfg
->basic_rate_set
, hw_rates
, 4);
1427 /* jal: really needed, we do a set_mib for autorate later ??? */
1428 ccfg
->auto_rate_fallback
= (priv
->txrate
== TX_RATE_AUTO
? 1 : 0);
1429 ccfg
->channel
= priv
->channel
;
1430 ccfg
->privacy_invoked
= priv
->wep_enabled
;
1431 memcpy(ccfg
->current_ssid
, priv
->essid
, IW_ESSID_MAX_SIZE
);
1432 ccfg
->ssid_len
= priv
->essid_size
;
1434 ccfg
->wep_default_key_id
= priv
->wep_key_id
;
1435 memcpy(ccfg
->wep_default_key_value
, priv
->wep_keys
,
1436 sizeof(priv
->wep_keys
));
1438 ccfg
->short_preamble
= priv
->preamble_type
;
1439 ccfg
->beacon_period
= cpu_to_le16(priv
->beacon_period
);
1441 ret
= at76_set_card_command(priv
->udev
, CMD_STARTUP
, &priv
->card_config
,
1442 sizeof(struct at76_card_config
));
1444 printk(KERN_ERR
"%s: at76_set_card_command failed: %d\n",
1445 wiphy_name(priv
->hw
->wiphy
), ret
);
1449 at76_wait_completion(priv
, CMD_STARTUP
);
1451 /* remove BSSID from previous run */
1452 memset(priv
->bssid
, 0, ETH_ALEN
);
1454 if (at76_set_radio(priv
, 1) == 1)
1455 at76_wait_completion(priv
, CMD_RADIO_ON
);
1457 ret
= at76_set_preamble(priv
, priv
->preamble_type
);
1461 ret
= at76_set_frag(priv
, priv
->frag_threshold
);
1465 ret
= at76_set_rts(priv
, priv
->rts_threshold
);
1469 ret
= at76_set_autorate_fallback(priv
,
1470 priv
->txrate
== TX_RATE_AUTO
? 1 : 0);
1474 ret
= at76_set_pm_mode(priv
);
1478 if (at76_debug
& DBG_MIB
) {
1479 at76_dump_mib_mac(priv
);
1480 at76_dump_mib_mac_addr(priv
);
1481 at76_dump_mib_mac_mgmt(priv
);
1482 at76_dump_mib_mac_wep(priv
);
1483 at76_dump_mib_mdomain(priv
);
1484 at76_dump_mib_phy(priv
);
1485 at76_dump_mib_local(priv
);
1491 /* Enable or disable promiscuous mode */
1492 static void at76_work_set_promisc(struct work_struct
*work
)
1494 struct at76_priv
*priv
= container_of(work
, struct at76_priv
,
1498 if (priv
->device_unplugged
)
1501 mutex_lock(&priv
->mtx
);
1503 priv
->mib_buf
.type
= MIB_LOCAL
;
1504 priv
->mib_buf
.size
= 1;
1505 priv
->mib_buf
.index
= offsetof(struct mib_local
, promiscuous_mode
);
1506 priv
->mib_buf
.data
.byte
= priv
->promisc
? 1 : 0;
1508 ret
= at76_set_mib(priv
, &priv
->mib_buf
);
1510 printk(KERN_ERR
"%s: set_mib (promiscuous_mode) failed: %d\n",
1511 wiphy_name(priv
->hw
->wiphy
), ret
);
1513 mutex_unlock(&priv
->mtx
);
1516 /* Submit Rx urb back to the device */
1517 static void at76_work_submit_rx(struct work_struct
*work
)
1519 struct at76_priv
*priv
= container_of(work
, struct at76_priv
,
1522 mutex_lock(&priv
->mtx
);
1523 at76_submit_rx_urb(priv
);
1524 mutex_unlock(&priv
->mtx
);
1527 static void at76_rx_tasklet(unsigned long param
)
1529 struct urb
*urb
= (struct urb
*)param
;
1530 struct at76_priv
*priv
= urb
->context
;
1531 struct at76_rx_buffer
*buf
;
1532 struct ieee80211_rx_status rx_status
= { 0 };
1534 if (priv
->device_unplugged
) {
1535 at76_dbg(DBG_DEVSTART
, "device unplugged");
1537 at76_dbg(DBG_DEVSTART
, "urb status %d", urb
->status
);
1541 if (!priv
->rx_skb
|| !priv
->rx_skb
->data
)
1544 buf
= (struct at76_rx_buffer
*)priv
->rx_skb
->data
;
1546 if (urb
->status
!= 0) {
1547 if (urb
->status
!= -ENOENT
&& urb
->status
!= -ECONNRESET
)
1549 "%s %s: - nonzero Rx bulk status received: %d",
1550 __func__
, wiphy_name(priv
->hw
->wiphy
),
1555 at76_dbg(DBG_RX_ATMEL_HDR
,
1556 "%s: rx frame: rate %d rssi %d noise %d link %d",
1557 wiphy_name(priv
->hw
->wiphy
), buf
->rx_rate
, buf
->rssi
,
1558 buf
->noise_level
, buf
->link_quality
);
1560 skb_pull(priv
->rx_skb
, AT76_RX_HDRLEN
);
1561 skb_trim(priv
->rx_skb
, le16_to_cpu(buf
->wlength
));
1562 at76_dbg_dump(DBG_RX_DATA
, priv
->rx_skb
->data
,
1563 priv
->rx_skb
->len
, "RX: len=%d", priv
->rx_skb
->len
);
1565 rx_status
.signal
= buf
->rssi
;
1566 rx_status
.flag
|= RX_FLAG_DECRYPTED
;
1567 rx_status
.flag
|= RX_FLAG_IV_STRIPPED
;
1569 at76_dbg(DBG_MAC80211
, "calling ieee80211_rx_irqsafe(): %d/%d",
1570 priv
->rx_skb
->len
, priv
->rx_skb
->data_len
);
1571 memcpy(IEEE80211_SKB_RXCB(priv
->rx_skb
), &rx_status
, sizeof(rx_status
));
1572 ieee80211_rx_irqsafe(priv
->hw
, priv
->rx_skb
);
1574 /* Use a new skb for the next receive */
1575 priv
->rx_skb
= NULL
;
1577 at76_submit_rx_urb(priv
);
1580 /* Load firmware into kernel memory and parse it */
1581 static struct fwentry
*at76_load_firmware(struct usb_device
*udev
,
1582 enum board_type board_type
)
1586 struct at76_fw_header
*fwh
;
1587 struct fwentry
*fwe
= &firmwares
[board_type
];
1589 mutex_lock(&fw_mutex
);
1592 at76_dbg(DBG_FW
, "re-using previously loaded fw");
1596 at76_dbg(DBG_FW
, "downloading firmware %s", fwe
->fwname
);
1597 ret
= request_firmware(&fwe
->fw
, fwe
->fwname
, &udev
->dev
);
1599 dev_printk(KERN_ERR
, &udev
->dev
, "firmware %s not found!\n",
1601 dev_printk(KERN_ERR
, &udev
->dev
,
1602 "you may need to download the firmware from "
1603 "http://developer.berlios.de/projects/at76c503a/\n");
1607 at76_dbg(DBG_FW
, "got it.");
1608 fwh
= (struct at76_fw_header
*)(fwe
->fw
->data
);
1610 if (fwe
->fw
->size
<= sizeof(*fwh
)) {
1611 dev_printk(KERN_ERR
, &udev
->dev
,
1612 "firmware is too short (0x%zx)\n", fwe
->fw
->size
);
1616 /* CRC currently not checked */
1617 fwe
->board_type
= le32_to_cpu(fwh
->board_type
);
1618 if (fwe
->board_type
!= board_type
) {
1619 dev_printk(KERN_ERR
, &udev
->dev
,
1620 "board type mismatch, requested %u, got %u\n",
1621 board_type
, fwe
->board_type
);
1625 fwe
->fw_version
.major
= fwh
->major
;
1626 fwe
->fw_version
.minor
= fwh
->minor
;
1627 fwe
->fw_version
.patch
= fwh
->patch
;
1628 fwe
->fw_version
.build
= fwh
->build
;
1630 str
= (char *)fwh
+ le32_to_cpu(fwh
->str_offset
);
1631 fwe
->intfw
= (u8
*)fwh
+ le32_to_cpu(fwh
->int_fw_offset
);
1632 fwe
->intfw_size
= le32_to_cpu(fwh
->int_fw_len
);
1633 fwe
->extfw
= (u8
*)fwh
+ le32_to_cpu(fwh
->ext_fw_offset
);
1634 fwe
->extfw_size
= le32_to_cpu(fwh
->ext_fw_len
);
1638 dev_printk(KERN_DEBUG
, &udev
->dev
,
1639 "using firmware %s (version %d.%d.%d-%d)\n",
1640 fwe
->fwname
, fwh
->major
, fwh
->minor
, fwh
->patch
, fwh
->build
);
1642 at76_dbg(DBG_DEVSTART
, "board %u, int %d:%d, ext %d:%d", board_type
,
1643 le32_to_cpu(fwh
->int_fw_offset
), le32_to_cpu(fwh
->int_fw_len
),
1644 le32_to_cpu(fwh
->ext_fw_offset
), le32_to_cpu(fwh
->ext_fw_len
));
1645 at76_dbg(DBG_DEVSTART
, "firmware id %s", str
);
1648 mutex_unlock(&fw_mutex
);
1656 static void at76_mac80211_tx_callback(struct urb
*urb
)
1658 struct at76_priv
*priv
= urb
->context
;
1659 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(priv
->tx_skb
);
1661 at76_dbg(DBG_MAC80211
, "%s()", __func__
);
1663 switch (urb
->status
) {
1666 info
->flags
|= IEEE80211_TX_STAT_ACK
;
1670 /* fail, urb has been unlinked */
1671 /* FIXME: add error message */
1674 at76_dbg(DBG_URB
, "%s - nonzero tx status received: %d",
1675 __func__
, urb
->status
);
1679 memset(&info
->status
, 0, sizeof(info
->status
));
1681 ieee80211_tx_status_irqsafe(priv
->hw
, priv
->tx_skb
);
1683 priv
->tx_skb
= NULL
;
1685 ieee80211_wake_queues(priv
->hw
);
1688 static int at76_mac80211_tx(struct ieee80211_hw
*hw
, struct sk_buff
*skb
)
1690 struct at76_priv
*priv
= hw
->priv
;
1691 struct at76_tx_buffer
*tx_buffer
= priv
->bulk_out_buffer
;
1692 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
1693 int padding
, submit_len
, ret
;
1695 at76_dbg(DBG_MAC80211
, "%s()", __func__
);
1697 if (priv
->tx_urb
->status
== -EINPROGRESS
) {
1698 printk(KERN_ERR
"%s: %s called while tx urb is pending\n",
1699 wiphy_name(priv
->hw
->wiphy
), __func__
);
1700 return NETDEV_TX_BUSY
;
1703 ieee80211_stop_queues(hw
);
1705 at76_ledtrig_tx_activity(); /* tell ledtrigger we send a packet */
1707 WARN_ON(priv
->tx_skb
!= NULL
);
1710 padding
= at76_calc_padding(skb
->len
);
1711 submit_len
= AT76_TX_HDRLEN
+ skb
->len
+ padding
;
1713 /* setup 'Atmel' header */
1714 memset(tx_buffer
, 0, sizeof(*tx_buffer
));
1715 tx_buffer
->padding
= padding
;
1716 tx_buffer
->wlength
= cpu_to_le16(skb
->len
);
1717 tx_buffer
->tx_rate
= ieee80211_get_tx_rate(hw
, info
)->hw_value
;
1718 memset(tx_buffer
->reserved
, 0, sizeof(tx_buffer
->reserved
));
1719 memcpy(tx_buffer
->packet
, skb
->data
, skb
->len
);
1721 at76_dbg(DBG_TX_DATA
, "%s tx: wlen 0x%x pad 0x%x rate %d hdr",
1722 wiphy_name(priv
->hw
->wiphy
), le16_to_cpu(tx_buffer
->wlength
),
1723 tx_buffer
->padding
, tx_buffer
->tx_rate
);
1726 at76_dbg_dump(DBG_TX_DATA_CONTENT
, tx_buffer
, submit_len
,
1727 "%s(): tx_buffer %d bytes:", __func__
, submit_len
);
1728 usb_fill_bulk_urb(priv
->tx_urb
, priv
->udev
, priv
->tx_pipe
, tx_buffer
,
1729 submit_len
, at76_mac80211_tx_callback
, priv
);
1730 ret
= usb_submit_urb(priv
->tx_urb
, GFP_ATOMIC
);
1732 printk(KERN_ERR
"%s: error in tx submit urb: %d\n",
1733 wiphy_name(priv
->hw
->wiphy
), ret
);
1736 "%s: -EINVAL: tx urb %p hcpriv %p complete %p\n",
1737 wiphy_name(priv
->hw
->wiphy
), priv
->tx_urb
,
1738 priv
->tx_urb
->hcpriv
, priv
->tx_urb
->complete
);
1744 static int at76_mac80211_start(struct ieee80211_hw
*hw
)
1746 struct at76_priv
*priv
= hw
->priv
;
1749 at76_dbg(DBG_MAC80211
, "%s()", __func__
);
1751 mutex_lock(&priv
->mtx
);
1753 ret
= at76_submit_rx_urb(priv
);
1755 printk(KERN_ERR
"%s: open: submit_rx_urb failed: %d\n",
1756 wiphy_name(priv
->hw
->wiphy
), ret
);
1760 at76_startup_device(priv
);
1762 at76_start_monitor(priv
);
1765 mutex_unlock(&priv
->mtx
);
1770 static void at76_mac80211_stop(struct ieee80211_hw
*hw
)
1772 struct at76_priv
*priv
= hw
->priv
;
1774 at76_dbg(DBG_MAC80211
, "%s()", __func__
);
1776 cancel_delayed_work(&priv
->dwork_hw_scan
);
1777 cancel_work_sync(&priv
->work_set_promisc
);
1779 mutex_lock(&priv
->mtx
);
1781 if (!priv
->device_unplugged
) {
1782 /* We are called by "ifconfig ethX down", not because the
1783 * device is not available anymore. */
1784 at76_set_radio(priv
, 0);
1786 /* We unlink rx_urb because at76_open() re-submits it.
1787 * If unplugged, at76_delete_device() takes care of it. */
1788 usb_kill_urb(priv
->rx_urb
);
1791 mutex_unlock(&priv
->mtx
);
1794 static int at76_add_interface(struct ieee80211_hw
*hw
,
1795 struct ieee80211_if_init_conf
*conf
)
1797 struct at76_priv
*priv
= hw
->priv
;
1800 at76_dbg(DBG_MAC80211
, "%s()", __func__
);
1802 mutex_lock(&priv
->mtx
);
1804 switch (conf
->type
) {
1805 case NL80211_IFTYPE_STATION
:
1806 priv
->iw_mode
= IW_MODE_INFRA
;
1814 mutex_unlock(&priv
->mtx
);
1819 static void at76_remove_interface(struct ieee80211_hw
*hw
,
1820 struct ieee80211_if_init_conf
*conf
)
1822 at76_dbg(DBG_MAC80211
, "%s()", __func__
);
1825 static int at76_join(struct at76_priv
*priv
)
1827 struct at76_req_join join
;
1830 memset(&join
, 0, sizeof(struct at76_req_join
));
1831 memcpy(join
.essid
, priv
->essid
, priv
->essid_size
);
1832 join
.essid_size
= priv
->essid_size
;
1833 memcpy(join
.bssid
, priv
->bssid
, ETH_ALEN
);
1834 join
.bss_type
= INFRASTRUCTURE_MODE
;
1835 join
.channel
= priv
->channel
;
1836 join
.timeout
= cpu_to_le16(2000);
1838 at76_dbg(DBG_MAC80211
, "%s: sending CMD_JOIN", __func__
);
1839 ret
= at76_set_card_command(priv
->udev
, CMD_JOIN
, &join
,
1840 sizeof(struct at76_req_join
));
1843 printk(KERN_ERR
"%s: at76_set_card_command failed: %d\n",
1844 wiphy_name(priv
->hw
->wiphy
), ret
);
1848 ret
= at76_wait_completion(priv
, CMD_JOIN
);
1849 at76_dbg(DBG_MAC80211
, "%s: CMD_JOIN returned: 0x%02x", __func__
, ret
);
1850 if (ret
!= CMD_STATUS_COMPLETE
) {
1851 printk(KERN_ERR
"%s: at76_wait_completion failed: %d\n",
1852 wiphy_name(priv
->hw
->wiphy
), ret
);
1856 at76_set_pm_mode(priv
);
1861 static void at76_dwork_hw_scan(struct work_struct
*work
)
1863 struct at76_priv
*priv
= container_of(work
, struct at76_priv
,
1864 dwork_hw_scan
.work
);
1867 if (priv
->device_unplugged
)
1870 mutex_lock(&priv
->mtx
);
1872 ret
= at76_get_cmd_status(priv
->udev
, CMD_SCAN
);
1873 at76_dbg(DBG_MAC80211
, "%s: CMD_SCAN status 0x%02x", __func__
, ret
);
1875 /* FIXME: add maximum time for scan to complete */
1877 if (ret
!= CMD_STATUS_COMPLETE
) {
1878 ieee80211_queue_delayed_work(priv
->hw
, &priv
->dwork_hw_scan
,
1879 SCAN_POLL_INTERVAL
);
1880 mutex_unlock(&priv
->mtx
);
1884 if (is_valid_ether_addr(priv
->bssid
))
1887 mutex_unlock(&priv
->mtx
);
1889 ieee80211_scan_completed(priv
->hw
, false);
1891 ieee80211_wake_queues(priv
->hw
);
1894 static int at76_hw_scan(struct ieee80211_hw
*hw
,
1895 struct cfg80211_scan_request
*req
)
1897 struct at76_priv
*priv
= hw
->priv
;
1898 struct at76_req_scan scan
;
1902 at76_dbg(DBG_MAC80211
, "%s():", __func__
);
1904 if (priv
->device_unplugged
)
1907 mutex_lock(&priv
->mtx
);
1909 ieee80211_stop_queues(hw
);
1911 memset(&scan
, 0, sizeof(struct at76_req_scan
));
1912 memset(scan
.bssid
, 0xFF, ETH_ALEN
);
1915 scan
.scan_type
= SCAN_TYPE_ACTIVE
;
1916 ssid
= req
->ssids
[0].ssid
;
1917 len
= req
->ssids
[0].ssid_len
;
1919 scan
.scan_type
= SCAN_TYPE_PASSIVE
;
1923 memcpy(scan
.essid
, ssid
, len
);
1924 scan
.essid_size
= len
;
1927 scan
.min_channel_time
= cpu_to_le16(priv
->scan_min_time
);
1928 scan
.max_channel_time
= cpu_to_le16(priv
->scan_max_time
);
1929 scan
.probe_delay
= cpu_to_le16(priv
->scan_min_time
* 1000);
1930 scan
.international_scan
= 0;
1932 at76_dbg(DBG_MAC80211
, "%s: sending CMD_SCAN", __func__
);
1933 ret
= at76_set_card_command(priv
->udev
, CMD_SCAN
, &scan
, sizeof(scan
));
1936 err("CMD_SCAN failed: %d", ret
);
1940 ieee80211_queue_delayed_work(priv
->hw
, &priv
->dwork_hw_scan
,
1941 SCAN_POLL_INTERVAL
);
1944 mutex_unlock(&priv
->mtx
);
1949 static int at76_config(struct ieee80211_hw
*hw
, u32 changed
)
1951 struct at76_priv
*priv
= hw
->priv
;
1953 at76_dbg(DBG_MAC80211
, "%s(): channel %d",
1954 __func__
, hw
->conf
.channel
->hw_value
);
1955 at76_dbg_dump(DBG_MAC80211
, priv
->bssid
, ETH_ALEN
, "bssid:");
1957 mutex_lock(&priv
->mtx
);
1959 priv
->channel
= hw
->conf
.channel
->hw_value
;
1961 if (is_valid_ether_addr(priv
->bssid
))
1964 at76_start_monitor(priv
);
1966 mutex_unlock(&priv
->mtx
);
1971 static void at76_bss_info_changed(struct ieee80211_hw
*hw
,
1972 struct ieee80211_vif
*vif
,
1973 struct ieee80211_bss_conf
*conf
,
1976 struct at76_priv
*priv
= hw
->priv
;
1978 at76_dbg(DBG_MAC80211
, "%s():", __func__
);
1980 if (!(changed
& BSS_CHANGED_BSSID
))
1983 at76_dbg_dump(DBG_MAC80211
, conf
->bssid
, ETH_ALEN
, "bssid:");
1985 mutex_lock(&priv
->mtx
);
1987 memcpy(priv
->bssid
, conf
->bssid
, ETH_ALEN
);
1989 if (is_valid_ether_addr(priv
->bssid
))
1990 /* mac80211 is joining a bss */
1993 mutex_unlock(&priv
->mtx
);
1996 /* must be atomic */
1997 static void at76_configure_filter(struct ieee80211_hw
*hw
,
1998 unsigned int changed_flags
,
1999 unsigned int *total_flags
, u64 multicast
)
2001 struct at76_priv
*priv
= hw
->priv
;
2004 at76_dbg(DBG_MAC80211
, "%s(): changed_flags=0x%08x "
2005 "total_flags=0x%08x",
2006 __func__
, changed_flags
, *total_flags
);
2008 flags
= changed_flags
& AT76_SUPPORTED_FILTERS
;
2009 *total_flags
= AT76_SUPPORTED_FILTERS
;
2011 /* Bail out after updating flags to prevent a WARN_ON in mac80211. */
2012 if (priv
->device_unplugged
)
2015 /* FIXME: access to priv->promisc should be protected with
2016 * priv->mtx, but it's impossible because this function needs to be
2019 if (flags
&& !priv
->promisc
) {
2020 /* mac80211 wants us to enable promiscuous mode */
2022 } else if (!flags
&& priv
->promisc
) {
2023 /* we need to disable promiscuous mode */
2028 ieee80211_queue_work(hw
, &priv
->work_set_promisc
);
2031 static int at76_set_key(struct ieee80211_hw
*hw
, enum set_key_cmd cmd
,
2032 struct ieee80211_vif
*vif
, struct ieee80211_sta
*sta
,
2033 struct ieee80211_key_conf
*key
)
2035 struct at76_priv
*priv
= hw
->priv
;
2039 at76_dbg(DBG_MAC80211
, "%s(): cmd %d key->alg %d key->keyidx %d "
2041 __func__
, cmd
, key
->alg
, key
->keyidx
, key
->keylen
);
2043 if (key
->alg
!= ALG_WEP
)
2046 key
->hw_key_idx
= key
->keyidx
;
2048 mutex_lock(&priv
->mtx
);
2052 memcpy(priv
->wep_keys
[key
->keyidx
], key
->key
, key
->keylen
);
2053 priv
->wep_keys_len
[key
->keyidx
] = key
->keylen
;
2055 /* FIXME: find out how to do this properly */
2056 priv
->wep_key_id
= key
->keyidx
;
2061 priv
->wep_keys_len
[key
->keyidx
] = 0;
2065 priv
->wep_enabled
= 0;
2067 for (i
= 0; i
< WEP_KEYS
; i
++) {
2068 if (priv
->wep_keys_len
[i
] != 0)
2069 priv
->wep_enabled
= 1;
2072 at76_startup_device(priv
);
2074 mutex_unlock(&priv
->mtx
);
2079 static const struct ieee80211_ops at76_ops
= {
2080 .tx
= at76_mac80211_tx
,
2081 .add_interface
= at76_add_interface
,
2082 .remove_interface
= at76_remove_interface
,
2083 .config
= at76_config
,
2084 .bss_info_changed
= at76_bss_info_changed
,
2085 .configure_filter
= at76_configure_filter
,
2086 .start
= at76_mac80211_start
,
2087 .stop
= at76_mac80211_stop
,
2088 .hw_scan
= at76_hw_scan
,
2089 .set_key
= at76_set_key
,
2092 /* Allocate network device and initialize private data */
2093 static struct at76_priv
*at76_alloc_new_device(struct usb_device
*udev
)
2095 struct ieee80211_hw
*hw
;
2096 struct at76_priv
*priv
;
2098 hw
= ieee80211_alloc_hw(sizeof(struct at76_priv
), &at76_ops
);
2100 printk(KERN_ERR DRIVER_NAME
": could not register"
2110 mutex_init(&priv
->mtx
);
2111 INIT_WORK(&priv
->work_set_promisc
, at76_work_set_promisc
);
2112 INIT_WORK(&priv
->work_submit_rx
, at76_work_submit_rx
);
2113 INIT_DELAYED_WORK(&priv
->dwork_hw_scan
, at76_dwork_hw_scan
);
2115 tasklet_init(&priv
->rx_tasklet
, at76_rx_tasklet
, 0);
2117 priv
->pm_mode
= AT76_PM_OFF
;
2118 priv
->pm_period
= 0;
2121 priv
->hw
->channel_change_time
= 100000;
2126 static int at76_alloc_urbs(struct at76_priv
*priv
,
2127 struct usb_interface
*interface
)
2129 struct usb_endpoint_descriptor
*endpoint
, *ep_in
, *ep_out
;
2132 struct usb_host_interface
*iface_desc
;
2134 at76_dbg(DBG_PROC_ENTRY
, "%s: ENTER", __func__
);
2136 at76_dbg(DBG_URB
, "%s: NumEndpoints %d ", __func__
,
2137 interface
->altsetting
[0].desc
.bNumEndpoints
);
2141 iface_desc
= interface
->cur_altsetting
;
2142 for (i
= 0; i
< iface_desc
->desc
.bNumEndpoints
; i
++) {
2143 endpoint
= &iface_desc
->endpoint
[i
].desc
;
2145 at76_dbg(DBG_URB
, "%s: %d. endpoint: addr 0x%x attr 0x%x",
2146 __func__
, i
, endpoint
->bEndpointAddress
,
2147 endpoint
->bmAttributes
);
2149 if (!ep_in
&& usb_endpoint_is_bulk_in(endpoint
))
2152 if (!ep_out
&& usb_endpoint_is_bulk_out(endpoint
))
2156 if (!ep_in
|| !ep_out
) {
2157 dev_printk(KERN_ERR
, &interface
->dev
,
2158 "bulk endpoints missing\n");
2162 priv
->rx_pipe
= usb_rcvbulkpipe(priv
->udev
, ep_in
->bEndpointAddress
);
2163 priv
->tx_pipe
= usb_sndbulkpipe(priv
->udev
, ep_out
->bEndpointAddress
);
2165 priv
->rx_urb
= usb_alloc_urb(0, GFP_KERNEL
);
2166 priv
->tx_urb
= usb_alloc_urb(0, GFP_KERNEL
);
2167 if (!priv
->rx_urb
|| !priv
->tx_urb
) {
2168 dev_printk(KERN_ERR
, &interface
->dev
, "cannot allocate URB\n");
2172 buffer_size
= sizeof(struct at76_tx_buffer
) + MAX_PADDING_SIZE
;
2173 priv
->bulk_out_buffer
= kmalloc(buffer_size
, GFP_KERNEL
);
2174 if (!priv
->bulk_out_buffer
) {
2175 dev_printk(KERN_ERR
, &interface
->dev
,
2176 "cannot allocate output buffer\n");
2180 at76_dbg(DBG_PROC_ENTRY
, "%s: EXIT", __func__
);
2185 static struct ieee80211_rate at76_rates
[] = {
2186 { .bitrate
= 10, .hw_value
= TX_RATE_1MBIT
, },
2187 { .bitrate
= 20, .hw_value
= TX_RATE_2MBIT
, },
2188 { .bitrate
= 55, .hw_value
= TX_RATE_5_5MBIT
, },
2189 { .bitrate
= 110, .hw_value
= TX_RATE_11MBIT
, },
2192 static struct ieee80211_channel at76_channels
[] = {
2193 { .center_freq
= 2412, .hw_value
= 1 },
2194 { .center_freq
= 2417, .hw_value
= 2 },
2195 { .center_freq
= 2422, .hw_value
= 3 },
2196 { .center_freq
= 2427, .hw_value
= 4 },
2197 { .center_freq
= 2432, .hw_value
= 5 },
2198 { .center_freq
= 2437, .hw_value
= 6 },
2199 { .center_freq
= 2442, .hw_value
= 7 },
2200 { .center_freq
= 2447, .hw_value
= 8 },
2201 { .center_freq
= 2452, .hw_value
= 9 },
2202 { .center_freq
= 2457, .hw_value
= 10 },
2203 { .center_freq
= 2462, .hw_value
= 11 },
2204 { .center_freq
= 2467, .hw_value
= 12 },
2205 { .center_freq
= 2472, .hw_value
= 13 },
2206 { .center_freq
= 2484, .hw_value
= 14 }
2209 static struct ieee80211_supported_band at76_supported_band
= {
2210 .channels
= at76_channels
,
2211 .n_channels
= ARRAY_SIZE(at76_channels
),
2212 .bitrates
= at76_rates
,
2213 .n_bitrates
= ARRAY_SIZE(at76_rates
),
2216 /* Register network device and initialize the hardware */
2217 static int at76_init_new_device(struct at76_priv
*priv
,
2218 struct usb_interface
*interface
)
2222 /* set up the endpoint information */
2223 /* check out the endpoints */
2225 at76_dbg(DBG_DEVSTART
, "USB interface: %d endpoints",
2226 interface
->cur_altsetting
->desc
.bNumEndpoints
);
2228 ret
= at76_alloc_urbs(priv
, interface
);
2233 ret
= at76_get_hw_config(priv
);
2235 dev_printk(KERN_ERR
, &interface
->dev
,
2236 "cannot get MAC address\n");
2240 priv
->domain
= at76_get_reg_domain(priv
->regulatory_domain
);
2242 priv
->channel
= DEF_CHANNEL
;
2243 priv
->iw_mode
= IW_MODE_INFRA
;
2244 priv
->rts_threshold
= DEF_RTS_THRESHOLD
;
2245 priv
->frag_threshold
= DEF_FRAG_THRESHOLD
;
2246 priv
->short_retry_limit
= DEF_SHORT_RETRY_LIMIT
;
2247 priv
->txrate
= TX_RATE_AUTO
;
2248 priv
->preamble_type
= PREAMBLE_TYPE_LONG
;
2249 priv
->beacon_period
= 100;
2250 priv
->auth_mode
= WLAN_AUTH_OPEN
;
2251 priv
->scan_min_time
= DEF_SCAN_MIN_TIME
;
2252 priv
->scan_max_time
= DEF_SCAN_MAX_TIME
;
2253 priv
->scan_mode
= SCAN_TYPE_ACTIVE
;
2254 priv
->device_unplugged
= 0;
2256 /* mac80211 initialisation */
2257 priv
->hw
->wiphy
->max_scan_ssids
= 1;
2258 priv
->hw
->wiphy
->max_scan_ie_len
= 0;
2259 priv
->hw
->wiphy
->interface_modes
= BIT(NL80211_IFTYPE_STATION
);
2260 priv
->hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] = &at76_supported_band
;
2261 priv
->hw
->flags
= IEEE80211_HW_RX_INCLUDES_FCS
|
2262 IEEE80211_HW_SIGNAL_UNSPEC
;
2263 priv
->hw
->max_signal
= 100;
2265 SET_IEEE80211_DEV(priv
->hw
, &interface
->dev
);
2266 SET_IEEE80211_PERM_ADDR(priv
->hw
, priv
->mac_addr
);
2268 ret
= ieee80211_register_hw(priv
->hw
);
2270 printk(KERN_ERR
"cannot register mac80211 hw (status %d)!\n",
2275 priv
->mac80211_registered
= 1;
2277 printk(KERN_INFO
"%s: USB %s, MAC %s, firmware %d.%d.%d-%d\n",
2278 wiphy_name(priv
->hw
->wiphy
),
2279 dev_name(&interface
->dev
), mac2str(priv
->mac_addr
),
2280 priv
->fw_version
.major
, priv
->fw_version
.minor
,
2281 priv
->fw_version
.patch
, priv
->fw_version
.build
);
2282 printk(KERN_INFO
"%s: regulatory domain 0x%02x: %s\n",
2283 wiphy_name(priv
->hw
->wiphy
),
2284 priv
->regulatory_domain
, priv
->domain
->name
);
2290 static void at76_delete_device(struct at76_priv
*priv
)
2292 at76_dbg(DBG_PROC_ENTRY
, "%s: ENTER", __func__
);
2294 /* The device is gone, don't bother turning it off */
2295 priv
->device_unplugged
= 1;
2297 tasklet_kill(&priv
->rx_tasklet
);
2299 if (priv
->mac80211_registered
)
2300 ieee80211_unregister_hw(priv
->hw
);
2303 usb_kill_urb(priv
->tx_urb
);
2304 usb_free_urb(priv
->tx_urb
);
2307 usb_kill_urb(priv
->rx_urb
);
2308 usb_free_urb(priv
->rx_urb
);
2311 at76_dbg(DBG_PROC_ENTRY
, "%s: unlinked urbs", __func__
);
2313 kfree(priv
->bulk_out_buffer
);
2315 del_timer_sync(&ledtrig_tx_timer
);
2317 kfree_skb(priv
->rx_skb
);
2319 usb_put_dev(priv
->udev
);
2321 at76_dbg(DBG_PROC_ENTRY
, "%s: before freeing priv/ieee80211_hw",
2323 ieee80211_free_hw(priv
->hw
);
2325 at76_dbg(DBG_PROC_ENTRY
, "%s: EXIT", __func__
);
2328 static int at76_probe(struct usb_interface
*interface
,
2329 const struct usb_device_id
*id
)
2332 struct at76_priv
*priv
;
2333 struct fwentry
*fwe
;
2334 struct usb_device
*udev
;
2336 int need_ext_fw
= 0;
2337 struct mib_fw_version fwv
;
2338 int board_type
= (int)id
->driver_info
;
2340 udev
= usb_get_dev(interface_to_usbdev(interface
));
2342 /* Load firmware into kernel memory */
2343 fwe
= at76_load_firmware(udev
, board_type
);
2349 op_mode
= at76_get_op_mode(udev
);
2351 at76_dbg(DBG_DEVSTART
, "opmode %d", op_mode
);
2353 /* we get OPMODE_NONE with 2.4.23, SMC2662W-AR ???
2354 we get 204 with 2.4.23, Fiberline FL-WL240u (505A+RFMD2958) ??? */
2356 if (op_mode
== OPMODE_HW_CONFIG_MODE
) {
2357 dev_printk(KERN_ERR
, &interface
->dev
,
2358 "cannot handle a device in HW_CONFIG_MODE\n");
2363 if (op_mode
!= OPMODE_NORMAL_NIC_WITH_FLASH
2364 && op_mode
!= OPMODE_NORMAL_NIC_WITHOUT_FLASH
) {
2365 /* download internal firmware part */
2366 dev_printk(KERN_DEBUG
, &interface
->dev
,
2367 "downloading internal firmware\n");
2368 ret
= at76_load_internal_fw(udev
, fwe
);
2370 dev_printk(KERN_ERR
, &interface
->dev
,
2371 "error %d downloading internal firmware\n",
2379 /* Internal firmware already inside the device. Get firmware
2380 * version to test if external firmware is loaded.
2381 * This works only for newer firmware, e.g. the Intersil 0.90.x
2382 * says "control timeout on ep0in" and subsequent
2383 * at76_get_op_mode() fail too :-( */
2385 /* if version >= 0.100.x.y or device with built-in flash we can
2386 * query the device for the fw version */
2387 if ((fwe
->fw_version
.major
> 0 || fwe
->fw_version
.minor
>= 100)
2388 || (op_mode
== OPMODE_NORMAL_NIC_WITH_FLASH
)) {
2389 ret
= at76_get_mib(udev
, MIB_FW_VERSION
, &fwv
, sizeof(fwv
));
2390 if (ret
< 0 || (fwv
.major
| fwv
.minor
) == 0)
2393 /* No way to check firmware version, reload to be sure */
2397 dev_printk(KERN_DEBUG
, &interface
->dev
,
2398 "downloading external firmware\n");
2400 ret
= at76_load_external_fw(udev
, fwe
);
2404 /* Re-check firmware version */
2405 ret
= at76_get_mib(udev
, MIB_FW_VERSION
, &fwv
, sizeof(fwv
));
2407 dev_printk(KERN_ERR
, &interface
->dev
,
2408 "error %d getting firmware version\n", ret
);
2413 priv
= at76_alloc_new_device(udev
);
2419 usb_set_intfdata(interface
, priv
);
2421 memcpy(&priv
->fw_version
, &fwv
, sizeof(struct mib_fw_version
));
2422 priv
->board_type
= board_type
;
2424 ret
= at76_init_new_device(priv
, interface
);
2426 at76_delete_device(priv
);
2435 static void at76_disconnect(struct usb_interface
*interface
)
2437 struct at76_priv
*priv
;
2439 priv
= usb_get_intfdata(interface
);
2440 usb_set_intfdata(interface
, NULL
);
2442 /* Disconnect after loading internal firmware */
2446 printk(KERN_INFO
"%s: disconnecting\n", wiphy_name(priv
->hw
->wiphy
));
2447 at76_delete_device(priv
);
2448 dev_printk(KERN_INFO
, &interface
->dev
, "disconnected\n");
2451 /* Structure for registering this driver with the USB subsystem */
2452 static struct usb_driver at76_driver
= {
2453 .name
= DRIVER_NAME
,
2454 .probe
= at76_probe
,
2455 .disconnect
= at76_disconnect
,
2456 .id_table
= dev_table
,
2459 static int __init
at76_mod_init(void)
2463 printk(KERN_INFO DRIVER_DESC
" " DRIVER_VERSION
" loading\n");
2465 mutex_init(&fw_mutex
);
2467 /* register this driver with the USB subsystem */
2468 result
= usb_register(&at76_driver
);
2470 printk(KERN_ERR DRIVER_NAME
2471 ": usb_register failed (status %d)\n", result
);
2473 led_trigger_register_simple("at76_usb-tx", &ledtrig_tx
);
2477 static void __exit
at76_mod_exit(void)
2481 printk(KERN_INFO DRIVER_DESC
" " DRIVER_VERSION
" unloading\n");
2482 usb_deregister(&at76_driver
);
2483 for (i
= 0; i
< ARRAY_SIZE(firmwares
); i
++) {
2484 if (firmwares
[i
].fw
)
2485 release_firmware(firmwares
[i
].fw
);
2487 led_trigger_unregister_simple(ledtrig_tx
);
2490 module_param_named(debug
, at76_debug
, uint
, 0600);
2491 MODULE_PARM_DESC(debug
, "Debugging level");
2493 module_init(at76_mod_init
);
2494 module_exit(at76_mod_exit
);
2496 MODULE_AUTHOR("Oliver Kurth <oku@masqmail.cx>");
2497 MODULE_AUTHOR("Joerg Albert <joerg.albert@gmx.de>");
2498 MODULE_AUTHOR("Alex <alex@foogod.com>");
2499 MODULE_AUTHOR("Nick Jones");
2500 MODULE_AUTHOR("Balint Seeber <n0_5p4m_p13453@hotmail.com>");
2501 MODULE_AUTHOR("Pavel Roskin <proski@gnu.org>");
2502 MODULE_AUTHOR("Guido Guenther <agx@sigxcpu.org>");
2503 MODULE_AUTHOR("Kalle Valo <kalle.valo@iki.fi>");
2504 MODULE_DESCRIPTION(DRIVER_DESC
);
2505 MODULE_LICENSE("GPL");