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>
10 * Copyright (c) 2010 Sebastian Smolorz <sesmo@gmx.net>
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.
17 * This file is part of the Berlios driver for WLAN USB devices based on the
18 * Atmel AT76C503A/505/505A.
20 * Some iw_handler code was taken from airo.c, (C) 1999 Benjamin Reed
22 * TODO list is at the wiki:
24 * http://wireless.kernel.org/en/users/Drivers/at76c50x-usb#TODO
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>
48 #include "at76c50x-usb.h"
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"
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
89 #define DBG_DEFAULTS 0
91 /* Use our own dbg macro */
92 #define at76_dbg(bits, format, arg...) \
94 if (at76_debug & (bits)) \
95 printk(KERN_DEBUG DRIVER_NAME ": " format "\n", ##arg); \
98 #define at76_dbg_dump(bits, buf, len, format, arg...) \
100 if (at76_debug & (bits)) { \
101 printk(KERN_DEBUG DRIVER_NAME ": " format "\n", ##arg); \
102 print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, buf, len); \
106 static uint at76_debug = DBG_DEFAULTS;
108 /* Protect against concurrent firmware loading and parsing */
109 static struct mutex fw_mutex;
111 static struct fwentry firmwares[] = {
113 [BOARD_503_ISL3861] = { "/*(DEBLOBBED)*/" },
114 [BOARD_503_ISL3863] = { "/*(DEBLOBBED)*/" },
115 [BOARD_503] = { "/*(DEBLOBBED)*/" },
116 [BOARD_503_ACC] = { "/*(DEBLOBBED)*/" },
117 [BOARD_505] = { "/*(DEBLOBBED)*/" },
118 [BOARD_505_2958] = { "/*(DEBLOBBED)*/" },
119 [BOARD_505A] = { "/*(DEBLOBBED)*/" },
120 [BOARD_505AMX] = { "/*(DEBLOBBED)*/" },
124 #define USB_DEVICE_DATA(__ops) .driver_info = (kernel_ulong_t)(__ops)
126 static struct usb_device_id dev_table[] = {
130 /* Generic AT76C503/3861 device */
131 { USB_DEVICE(0x03eb, 0x7603), USB_DEVICE_DATA(BOARD_503_ISL3861) },
132 /* Linksys WUSB11 v2.1/v2.6 */
133 { USB_DEVICE(0x066b, 0x2211), USB_DEVICE_DATA(BOARD_503_ISL3861) },
134 /* Netgear MA101 rev. A */
135 { USB_DEVICE(0x0864, 0x4100), USB_DEVICE_DATA(BOARD_503_ISL3861) },
136 /* Tekram U300C / Allnet ALL0193 */
137 { USB_DEVICE(0x0b3b, 0x1612), USB_DEVICE_DATA(BOARD_503_ISL3861) },
138 /* HP HN210W J7801A */
139 { USB_DEVICE(0x03f0, 0x011c), USB_DEVICE_DATA(BOARD_503_ISL3861) },
140 /* Sitecom/Z-Com/Zyxel M4Y-750 */
141 { USB_DEVICE(0x0cde, 0x0001), USB_DEVICE_DATA(BOARD_503_ISL3861) },
142 /* Dynalink/Askey WLL013 (intersil) */
143 { USB_DEVICE(0x069a, 0x0320), USB_DEVICE_DATA(BOARD_503_ISL3861) },
144 /* EZ connect 11Mpbs Wireless USB Adapter SMC2662W v1 */
145 { USB_DEVICE(0x0d5c, 0xa001), USB_DEVICE_DATA(BOARD_503_ISL3861) },
147 { USB_DEVICE(0x04a5, 0x9000), USB_DEVICE_DATA(BOARD_503_ISL3861) },
148 /* Addtron AWU-120, Compex WLU11 */
149 { USB_DEVICE(0x05dd, 0xff31), USB_DEVICE_DATA(BOARD_503_ISL3861) },
150 /* Intel AP310 AnyPoint II USB */
151 { USB_DEVICE(0x8086, 0x0200), USB_DEVICE_DATA(BOARD_503_ISL3861) },
153 { USB_DEVICE(0x0d8e, 0x7100), USB_DEVICE_DATA(BOARD_503_ISL3861) },
154 /* Arescom WL-210, FCC id 07J-GL2411USB */
155 { USB_DEVICE(0x0d8e, 0x7110), USB_DEVICE_DATA(BOARD_503_ISL3861) },
156 /* I-O DATA WN-B11/USB */
157 { USB_DEVICE(0x04bb, 0x0919), USB_DEVICE_DATA(BOARD_503_ISL3861) },
158 /* BT Voyager 1010 */
159 { USB_DEVICE(0x069a, 0x0821), USB_DEVICE_DATA(BOARD_503_ISL3861) },
163 /* Generic AT76C503/3863 device */
164 { USB_DEVICE(0x03eb, 0x7604), USB_DEVICE_DATA(BOARD_503_ISL3863) },
165 /* Samsung SWL-2100U */
166 { USB_DEVICE(0x055d, 0xa000), USB_DEVICE_DATA(BOARD_503_ISL3863) },
170 /* Generic AT76C503/RFMD device */
171 { USB_DEVICE(0x03eb, 0x7605), USB_DEVICE_DATA(BOARD_503) },
172 /* Dynalink/Askey WLL013 (rfmd) */
173 { USB_DEVICE(0x069a, 0x0321), USB_DEVICE_DATA(BOARD_503) },
174 /* Linksys WUSB11 v2.6 */
175 { USB_DEVICE(0x077b, 0x2219), USB_DEVICE_DATA(BOARD_503) },
176 /* Network Everywhere NWU11B */
177 { USB_DEVICE(0x077b, 0x2227), USB_DEVICE_DATA(BOARD_503) },
178 /* Netgear MA101 rev. B */
179 { USB_DEVICE(0x0864, 0x4102), USB_DEVICE_DATA(BOARD_503) },
180 /* D-Link DWL-120 rev. E */
181 { USB_DEVICE(0x2001, 0x3200), USB_DEVICE_DATA(BOARD_503) },
182 /* Actiontec 802UAT1, HWU01150-01UK */
183 { USB_DEVICE(0x1668, 0x7605), USB_DEVICE_DATA(BOARD_503) },
184 /* AirVast W-Buddie WN210 */
185 { USB_DEVICE(0x03eb, 0x4102), USB_DEVICE_DATA(BOARD_503) },
186 /* Dick Smith Electronics XH1153 802.11b USB adapter */
187 { USB_DEVICE(0x1371, 0x5743), USB_DEVICE_DATA(BOARD_503) },
189 { USB_DEVICE(0x1371, 0x0001), USB_DEVICE_DATA(BOARD_503) },
190 /* FiberLine FL-WL200U */
191 { USB_DEVICE(0x1371, 0x0002), USB_DEVICE_DATA(BOARD_503) },
192 /* BenQ AWL400 USB stick */
193 { USB_DEVICE(0x04a5, 0x9001), USB_DEVICE_DATA(BOARD_503) },
194 /* 3Com 3CRSHEW696 */
195 { USB_DEVICE(0x0506, 0x0a01), USB_DEVICE_DATA(BOARD_503) },
196 /* Siemens Santis ADSL WLAN USB adapter WLL 013 */
197 { USB_DEVICE(0x0681, 0x001b), USB_DEVICE_DATA(BOARD_503) },
198 /* Belkin F5D6050, version 2 */
199 { USB_DEVICE(0x050d, 0x0050), USB_DEVICE_DATA(BOARD_503) },
200 /* iBlitzz, BWU613 (not *B or *SB) */
201 { USB_DEVICE(0x07b8, 0xb000), USB_DEVICE_DATA(BOARD_503) },
202 /* Gigabyte GN-WLBM101 */
203 { USB_DEVICE(0x1044, 0x8003), USB_DEVICE_DATA(BOARD_503) },
204 /* Planex GW-US11S */
205 { USB_DEVICE(0x2019, 0x3220), USB_DEVICE_DATA(BOARD_503) },
206 /* Internal WLAN adapter in h5[4,5]xx series iPAQs */
207 { USB_DEVICE(0x049f, 0x0032), USB_DEVICE_DATA(BOARD_503) },
208 /* Corega Wireless LAN USB-11 mini */
209 { USB_DEVICE(0x07aa, 0x0011), USB_DEVICE_DATA(BOARD_503) },
210 /* Corega Wireless LAN USB-11 mini2 */
211 { USB_DEVICE(0x07aa, 0x0018), USB_DEVICE_DATA(BOARD_503) },
213 { USB_DEVICE(0x05dd, 0xff35), USB_DEVICE_DATA(BOARD_503) },
218 { USB_DEVICE(0x083a, 0x3501), USB_DEVICE_DATA(BOARD_503_ACC) },
219 /* Belkin F5D6050, SMC2662W v2, SMC2662W-AR */
220 { USB_DEVICE(0x0d5c, 0xa002), USB_DEVICE_DATA(BOARD_503_ACC) },
224 /* Generic AT76C505/RFMD */
225 { USB_DEVICE(0x03eb, 0x7606), USB_DEVICE_DATA(BOARD_505) },
229 /* Generic AT76C505/RFMD, OvisLink WL-1130USB */
230 { USB_DEVICE(0x03eb, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) },
231 /* Fiberline FL-WL240U */
232 { USB_DEVICE(0x1371, 0x0014), USB_DEVICE_DATA(BOARD_505_2958) },
233 /* CNet CNUSB-611G */
234 { USB_DEVICE(0x1371, 0x0013), USB_DEVICE_DATA(BOARD_505_2958) },
235 /* Linksys WUSB11 v2.8 */
236 { USB_DEVICE(0x1915, 0x2233), USB_DEVICE_DATA(BOARD_505_2958) },
237 /* Xterasys XN-2122B, IBlitzz BWU613B/BWU613SB */
238 { USB_DEVICE(0x12fd, 0x1001), USB_DEVICE_DATA(BOARD_505_2958) },
239 /* Corega WLAN USB Stick 11 */
240 { USB_DEVICE(0x07aa, 0x7613), USB_DEVICE_DATA(BOARD_505_2958) },
241 /* Microstar MSI Box MS6978 */
242 { USB_DEVICE(0x0db0, 0x1020), USB_DEVICE_DATA(BOARD_505_2958) },
246 /* Generic AT76C505A device */
247 { USB_DEVICE(0x03eb, 0x7614), USB_DEVICE_DATA(BOARD_505A) },
248 /* Generic AT76C505AS device */
249 { USB_DEVICE(0x03eb, 0x7617), USB_DEVICE_DATA(BOARD_505A) },
250 /* Siemens Gigaset USB WLAN Adapter 11 */
251 { USB_DEVICE(0x1690, 0x0701), USB_DEVICE_DATA(BOARD_505A) },
252 /* OQO Model 01+ Internal Wi-Fi */
253 { USB_DEVICE(0x1557, 0x0002), USB_DEVICE_DATA(BOARD_505A) },
257 /* Generic AT76C505AMX device */
258 { USB_DEVICE(0x03eb, 0x7615), USB_DEVICE_DATA(BOARD_505AMX) },
262 MODULE_DEVICE_TABLE(usb, dev_table);
264 /* Supported rates of this hardware, bit 7 marks basic rates */
265 static const u8 hw_rates[] = { 0x82, 0x84, 0x0b, 0x16 };
267 static const char *const preambles[] = { "long", "short", "auto" };
269 /* Firmware download */
271 #define STATE_IDLE 0x00
272 #define STATE_DETACH 0x01
273 #define STATE_DFU_IDLE 0x02
274 #define STATE_DFU_DOWNLOAD_SYNC 0x03
275 #define STATE_DFU_DOWNLOAD_BUSY 0x04
276 #define STATE_DFU_DOWNLOAD_IDLE 0x05
277 #define STATE_DFU_MANIFEST_SYNC 0x06
278 #define STATE_DFU_MANIFEST 0x07
279 #define STATE_DFU_MANIFEST_WAIT_RESET 0x08
280 #define STATE_DFU_UPLOAD_IDLE 0x09
281 #define STATE_DFU_ERROR 0x0a
287 #define DFU_GETSTATUS 3
288 #define DFU_CLRSTATUS 4
289 #define DFU_GETSTATE 5
292 #define FW_BLOCK_SIZE 1024
295 unsigned char status;
296 unsigned char poll_timeout[3];
298 unsigned char string;
301 static inline int at76_is_intersil(enum board_type board)
303 return (board == BOARD_503_ISL3861 || board == BOARD_503_ISL3863);
306 static inline int at76_is_503rfmd(enum board_type board)
308 return (board == BOARD_503 || board == BOARD_503_ACC);
311 static inline int at76_is_505a(enum board_type board)
313 return (board == BOARD_505A || board == BOARD_505AMX);
316 /* Load a block of the first (internal) part of the firmware */
317 static int at76_load_int_fw_block(struct usb_device *udev, int blockno,
318 void *block, int size)
320 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), DFU_DNLOAD,
321 USB_TYPE_CLASS | USB_DIR_OUT |
322 USB_RECIP_INTERFACE, blockno, 0, block, size,
323 USB_CTRL_GET_TIMEOUT);
326 static int at76_dfu_get_status(struct usb_device *udev,
327 struct dfu_status *status)
331 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATUS,
332 USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE,
333 0, 0, status, sizeof(struct dfu_status),
334 USB_CTRL_GET_TIMEOUT);
338 static int at76_dfu_get_state(struct usb_device *udev, u8 *state)
342 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), DFU_GETSTATE,
343 USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE,
344 0, 0, state, 1, USB_CTRL_GET_TIMEOUT);
348 /* Convert timeout from the DFU status to jiffies */
349 static inline unsigned long at76_get_timeout(struct dfu_status *s)
351 return msecs_to_jiffies((s->poll_timeout[2] << 16)
352 | (s->poll_timeout[1] << 8)
353 | (s->poll_timeout[0]));
356 /* Load internal firmware from the buffer. If manifest_sync_timeout > 0, use
357 * its value in jiffies in the MANIFEST_SYNC state. */
358 static int at76_usbdfu_download(struct usb_device *udev, u8 *buf, u32 size,
359 int manifest_sync_timeout)
362 int need_dfu_state = 1;
367 struct dfu_status *dfu_stat_buf = NULL;
368 u8 *dfu_state = NULL;
371 at76_dbg(DBG_DFU, "%s( %p, %u, %d)", __func__, buf, size,
372 manifest_sync_timeout);
375 dev_err(&udev->dev, "FW buffer length invalid!\n");
379 dfu_stat_buf = kmalloc(sizeof(struct dfu_status), GFP_KERNEL);
385 block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL);
391 dfu_state = kmalloc(sizeof(u8), GFP_KERNEL);
399 if (need_dfu_state) {
400 ret = at76_dfu_get_state(udev, dfu_state);
403 "cannot get DFU state: %d\n", ret);
409 switch (*dfu_state) {
410 case STATE_DFU_DOWNLOAD_SYNC:
411 at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_SYNC");
412 ret = at76_dfu_get_status(udev, dfu_stat_buf);
414 *dfu_state = dfu_stat_buf->state;
415 dfu_timeout = at76_get_timeout(dfu_stat_buf);
419 "at76_dfu_get_status returned %d\n",
423 case STATE_DFU_DOWNLOAD_BUSY:
424 at76_dbg(DBG_DFU, "STATE_DFU_DOWNLOAD_BUSY");
427 at76_dbg(DBG_DFU, "DFU: Resetting device");
428 schedule_timeout_interruptible(dfu_timeout);
431 case STATE_DFU_DOWNLOAD_IDLE:
432 at76_dbg(DBG_DFU, "DOWNLOAD...");
435 at76_dbg(DBG_DFU, "DFU IDLE");
437 bsize = min_t(int, size, FW_BLOCK_SIZE);
438 memcpy(block, buf, bsize);
439 at76_dbg(DBG_DFU, "int fw, size left = %5d, "
440 "bsize = %4d, blockno = %2d", size, bsize,
443 at76_load_int_fw_block(udev, blockno, block, bsize);
450 "at76_load_int_fw_block returned %d\n",
455 case STATE_DFU_MANIFEST_SYNC:
456 at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_SYNC");
458 ret = at76_dfu_get_status(udev, dfu_stat_buf);
462 *dfu_state = dfu_stat_buf->state;
463 dfu_timeout = at76_get_timeout(dfu_stat_buf);
466 /* override the timeout from the status response,
467 needed for AT76C505A */
468 if (manifest_sync_timeout > 0)
469 dfu_timeout = manifest_sync_timeout;
471 at76_dbg(DBG_DFU, "DFU: Waiting for manifest phase");
472 schedule_timeout_interruptible(dfu_timeout);
475 case STATE_DFU_MANIFEST:
476 at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST");
480 case STATE_DFU_MANIFEST_WAIT_RESET:
481 at76_dbg(DBG_DFU, "STATE_DFU_MANIFEST_WAIT_RESET");
485 case STATE_DFU_UPLOAD_IDLE:
486 at76_dbg(DBG_DFU, "STATE_DFU_UPLOAD_IDLE");
489 case STATE_DFU_ERROR:
490 at76_dbg(DBG_DFU, "STATE_DFU_ERROR");
495 at76_dbg(DBG_DFU, "DFU UNKNOWN STATE (%d)", *dfu_state);
499 } while (!is_done && (ret >= 0));
513 static int tx_activity;
514 static void at76_ledtrig_tx_timerfunc(unsigned long data);
515 static DEFINE_TIMER(ledtrig_tx_timer, at76_ledtrig_tx_timerfunc, 0, 0);
516 DEFINE_LED_TRIGGER(ledtrig_tx);
518 static void at76_ledtrig_tx_timerfunc(unsigned long data)
520 static int tx_lastactivity;
522 if (tx_lastactivity != tx_activity) {
523 tx_lastactivity = tx_activity;
524 led_trigger_event(ledtrig_tx, LED_FULL);
525 mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4);
527 led_trigger_event(ledtrig_tx, LED_OFF);
530 static void at76_ledtrig_tx_activity(void)
533 if (!timer_pending(&ledtrig_tx_timer))
534 mod_timer(&ledtrig_tx_timer, jiffies + HZ / 4);
537 static int at76_remap(struct usb_device *udev)
540 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0a,
541 USB_TYPE_VENDOR | USB_DIR_OUT |
542 USB_RECIP_INTERFACE, 0, 0, NULL, 0,
543 USB_CTRL_GET_TIMEOUT);
549 static int at76_get_op_mode(struct usb_device *udev)
555 op_mode = kmalloc(1, GFP_NOIO);
558 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33,
559 USB_TYPE_VENDOR | USB_DIR_IN |
560 USB_RECIP_INTERFACE, 0x01, 0, op_mode, 1,
561 USB_CTRL_GET_TIMEOUT);
573 /* Load a block of the second ("external") part of the firmware */
574 static inline int at76_load_ext_fw_block(struct usb_device *udev, int blockno,
575 void *block, int size)
577 return usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e,
578 USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
579 0x0802, blockno, block, size,
580 USB_CTRL_GET_TIMEOUT);
583 static inline int at76_get_hw_cfg(struct usb_device *udev,
584 union at76_hwcfg *buf, int buf_size)
586 return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33,
587 USB_TYPE_VENDOR | USB_DIR_IN |
588 USB_RECIP_INTERFACE, 0x0a02, 0,
589 buf, buf_size, USB_CTRL_GET_TIMEOUT);
592 /* Intersil boards use a different "value" for GetHWConfig requests */
593 static inline int at76_get_hw_cfg_intersil(struct usb_device *udev,
594 union at76_hwcfg *buf, int buf_size)
596 return usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33,
597 USB_TYPE_VENDOR | USB_DIR_IN |
598 USB_RECIP_INTERFACE, 0x0902, 0,
599 buf, buf_size, USB_CTRL_GET_TIMEOUT);
602 /* Get the hardware configuration for the adapter and put it to the appropriate
603 * fields of 'priv' (the GetHWConfig request and interpretation of the result
604 * depends on the board type) */
605 static int at76_get_hw_config(struct at76_priv *priv)
608 union at76_hwcfg *hwcfg = kmalloc(sizeof(*hwcfg), GFP_KERNEL);
613 if (at76_is_intersil(priv->board_type)) {
614 ret = at76_get_hw_cfg_intersil(priv->udev, hwcfg,
618 memcpy(priv->mac_addr, hwcfg->i.mac_addr, ETH_ALEN);
619 priv->regulatory_domain = hwcfg->i.regulatory_domain;
620 } else if (at76_is_503rfmd(priv->board_type)) {
621 ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r3));
624 memcpy(priv->mac_addr, hwcfg->r3.mac_addr, ETH_ALEN);
625 priv->regulatory_domain = hwcfg->r3.regulatory_domain;
627 ret = at76_get_hw_cfg(priv->udev, hwcfg, sizeof(hwcfg->r5));
630 memcpy(priv->mac_addr, hwcfg->r5.mac_addr, ETH_ALEN);
631 priv->regulatory_domain = hwcfg->r5.regulatory_domain;
637 wiphy_err(priv->hw->wiphy, "cannot get HW Config (error %d)\n",
643 static struct reg_domain const *at76_get_reg_domain(u16 code)
646 static struct reg_domain const fd_tab[] = {
647 { 0x10, "FCC (USA)", 0x7ff }, /* ch 1-11 */
648 { 0x20, "IC (Canada)", 0x7ff }, /* ch 1-11 */
649 { 0x30, "ETSI (most of Europe)", 0x1fff }, /* ch 1-13 */
650 { 0x31, "Spain", 0x600 }, /* ch 10-11 */
651 { 0x32, "France", 0x1e00 }, /* ch 10-13 */
652 { 0x40, "MKK (Japan)", 0x2000 }, /* ch 14 */
653 { 0x41, "MKK1 (Japan)", 0x3fff }, /* ch 1-14 */
654 { 0x50, "Israel", 0x3fc }, /* ch 3-9 */
655 { 0x00, "<unknown>", 0xffffffff } /* ch 1-32 */
658 /* Last entry is fallback for unknown domain code */
659 for (i = 0; i < ARRAY_SIZE(fd_tab) - 1; i++)
660 if (code == fd_tab[i].code)
666 static inline int at76_get_mib(struct usb_device *udev, u16 mib, void *buf,
671 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x33,
672 USB_TYPE_VENDOR | USB_DIR_IN |
673 USB_RECIP_INTERFACE, mib << 8, 0, buf, buf_size,
674 USB_CTRL_GET_TIMEOUT);
675 if (ret >= 0 && ret != buf_size)
680 /* Return positive number for status, negative for an error */
681 static inline int at76_get_cmd_status(struct usb_device *udev, u8 cmd)
686 stat_buf = kmalloc(40, GFP_NOIO);
690 ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), 0x22,
691 USB_TYPE_VENDOR | USB_DIR_IN |
692 USB_RECIP_INTERFACE, cmd, 0, stat_buf,
693 40, USB_CTRL_GET_TIMEOUT);
701 #define MAKE_CMD_CASE(c) case (c): return #c
702 static const char *at76_get_cmd_string(u8 cmd_status)
704 switch (cmd_status) {
705 MAKE_CMD_CASE(CMD_SET_MIB);
706 MAKE_CMD_CASE(CMD_GET_MIB);
707 MAKE_CMD_CASE(CMD_SCAN);
708 MAKE_CMD_CASE(CMD_JOIN);
709 MAKE_CMD_CASE(CMD_START_IBSS);
710 MAKE_CMD_CASE(CMD_RADIO_ON);
711 MAKE_CMD_CASE(CMD_RADIO_OFF);
712 MAKE_CMD_CASE(CMD_STARTUP);
718 static int at76_set_card_command(struct usb_device *udev, u8 cmd, void *buf,
722 struct at76_command *cmd_buf = kmalloc(sizeof(struct at76_command) +
723 buf_size, GFP_KERNEL);
729 cmd_buf->reserved = 0;
730 cmd_buf->size = cpu_to_le16(buf_size);
731 memcpy(cmd_buf->data, buf, buf_size);
733 at76_dbg_dump(DBG_CMD, cmd_buf, sizeof(struct at76_command) + buf_size,
734 "issuing command %s (0x%02x)",
735 at76_get_cmd_string(cmd), cmd);
737 ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0e,
738 USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE,
740 sizeof(struct at76_command) + buf_size,
741 USB_CTRL_GET_TIMEOUT);
746 #define MAKE_CMD_STATUS_CASE(c) case (c): return #c
747 static const char *at76_get_cmd_status_string(u8 cmd_status)
749 switch (cmd_status) {
750 MAKE_CMD_STATUS_CASE(CMD_STATUS_IDLE);
751 MAKE_CMD_STATUS_CASE(CMD_STATUS_COMPLETE);
752 MAKE_CMD_STATUS_CASE(CMD_STATUS_UNKNOWN);
753 MAKE_CMD_STATUS_CASE(CMD_STATUS_INVALID_PARAMETER);
754 MAKE_CMD_STATUS_CASE(CMD_STATUS_FUNCTION_NOT_SUPPORTED);
755 MAKE_CMD_STATUS_CASE(CMD_STATUS_TIME_OUT);
756 MAKE_CMD_STATUS_CASE(CMD_STATUS_IN_PROGRESS);
757 MAKE_CMD_STATUS_CASE(CMD_STATUS_HOST_FAILURE);
758 MAKE_CMD_STATUS_CASE(CMD_STATUS_SCAN_FAILED);
764 /* Wait until the command is completed */
765 static int at76_wait_completion(struct at76_priv *priv, int cmd)
768 unsigned long timeout = jiffies + CMD_COMPLETION_TIMEOUT;
771 status = at76_get_cmd_status(priv->udev, cmd);
773 wiphy_err(priv->hw->wiphy,
774 "at76_get_cmd_status failed: %d\n",
779 at76_dbg(DBG_WAIT_COMPLETE,
780 "%s: Waiting on cmd %d, status = %d (%s)",
781 wiphy_name(priv->hw->wiphy), cmd, status,
782 at76_get_cmd_status_string(status));
784 if (status != CMD_STATUS_IN_PROGRESS
785 && status != CMD_STATUS_IDLE)
788 schedule_timeout_interruptible(HZ / 10); /* 100 ms */
789 if (time_after(jiffies, timeout)) {
790 wiphy_err(priv->hw->wiphy,
791 "completion timeout for command %d\n", cmd);
800 static int at76_set_mib(struct at76_priv *priv, struct set_mib_buffer *buf)
804 ret = at76_set_card_command(priv->udev, CMD_SET_MIB, buf,
805 offsetof(struct set_mib_buffer,
810 ret = at76_wait_completion(priv, CMD_SET_MIB);
811 if (ret != CMD_STATUS_COMPLETE) {
812 wiphy_info(priv->hw->wiphy,
813 "set_mib: at76_wait_completion failed with %d\n",
821 /* Return < 0 on error, == 0 if no command sent, == 1 if cmd sent */
822 static int at76_set_radio(struct at76_priv *priv, int enable)
827 if (priv->radio_on == enable)
830 cmd = enable ? CMD_RADIO_ON : CMD_RADIO_OFF;
832 ret = at76_set_card_command(priv->udev, cmd, NULL, 0);
834 wiphy_err(priv->hw->wiphy,
835 "at76_set_card_command(%d) failed: %d\n", cmd, ret);
839 priv->radio_on = enable;
843 /* Set current power save mode (AT76_PM_OFF/AT76_PM_ON/AT76_PM_SMART) */
844 static int at76_set_pm_mode(struct at76_priv *priv)
848 priv->mib_buf.type = MIB_MAC_MGMT;
849 priv->mib_buf.size = 1;
850 priv->mib_buf.index = offsetof(struct mib_mac_mgmt, power_mgmt_mode);
851 priv->mib_buf.data.byte = priv->pm_mode;
853 ret = at76_set_mib(priv, &priv->mib_buf);
855 wiphy_err(priv->hw->wiphy, "set_mib (pm_mode) failed: %d\n",
861 static int at76_set_preamble(struct at76_priv *priv, u8 type)
865 priv->mib_buf.type = MIB_LOCAL;
866 priv->mib_buf.size = 1;
867 priv->mib_buf.index = offsetof(struct mib_local, preamble_type);
868 priv->mib_buf.data.byte = type;
870 ret = at76_set_mib(priv, &priv->mib_buf);
872 wiphy_err(priv->hw->wiphy, "set_mib (preamble) failed: %d\n",
878 static int at76_set_frag(struct at76_priv *priv, u16 size)
882 priv->mib_buf.type = MIB_MAC;
883 priv->mib_buf.size = 2;
884 priv->mib_buf.index = offsetof(struct mib_mac, frag_threshold);
885 priv->mib_buf.data.word = cpu_to_le16(size);
887 ret = at76_set_mib(priv, &priv->mib_buf);
889 wiphy_err(priv->hw->wiphy,
890 "set_mib (frag threshold) failed: %d\n", ret);
895 static int at76_set_rts(struct at76_priv *priv, u16 size)
899 priv->mib_buf.type = MIB_MAC;
900 priv->mib_buf.size = 2;
901 priv->mib_buf.index = offsetof(struct mib_mac, rts_threshold);
902 priv->mib_buf.data.word = cpu_to_le16(size);
904 ret = at76_set_mib(priv, &priv->mib_buf);
906 wiphy_err(priv->hw->wiphy, "set_mib (rts) failed: %d\n", ret);
911 static int at76_set_autorate_fallback(struct at76_priv *priv, int onoff)
915 priv->mib_buf.type = MIB_LOCAL;
916 priv->mib_buf.size = 1;
917 priv->mib_buf.index = offsetof(struct mib_local, txautorate_fallback);
918 priv->mib_buf.data.byte = onoff;
920 ret = at76_set_mib(priv, &priv->mib_buf);
922 wiphy_err(priv->hw->wiphy,
923 "set_mib (autorate fallback) failed: %d\n", ret);
928 static void at76_dump_mib_mac_addr(struct at76_priv *priv)
932 struct mib_mac_addr *m = kmalloc(sizeof(struct mib_mac_addr),
938 ret = at76_get_mib(priv->udev, MIB_MAC_ADDR, m,
939 sizeof(struct mib_mac_addr));
941 wiphy_err(priv->hw->wiphy,
942 "at76_get_mib (MAC_ADDR) failed: %d\n", ret);
946 at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: mac_addr %pM res 0x%x 0x%x",
947 wiphy_name(priv->hw->wiphy),
948 m->mac_addr, m->res[0], m->res[1]);
949 for (i = 0; i < ARRAY_SIZE(m->group_addr); i++)
950 at76_dbg(DBG_MIB, "%s: MIB MAC_ADDR: group addr %d: %pM, "
951 "status %d", wiphy_name(priv->hw->wiphy), i,
952 m->group_addr[i], m->group_addr_status[i]);
957 static void at76_dump_mib_mac_wep(struct at76_priv *priv)
962 struct mib_mac_wep *m = kmalloc(sizeof(struct mib_mac_wep), GFP_KERNEL);
967 ret = at76_get_mib(priv->udev, MIB_MAC_WEP, m,
968 sizeof(struct mib_mac_wep));
970 wiphy_err(priv->hw->wiphy,
971 "at76_get_mib (MAC_WEP) failed: %d\n", ret);
975 at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: priv_invoked %u def_key_id %u "
976 "key_len %u excl_unencr %u wep_icv_err %u wep_excluded %u "
977 "encr_level %u key %d", wiphy_name(priv->hw->wiphy),
978 m->privacy_invoked, m->wep_default_key_id,
979 m->wep_key_mapping_len, m->exclude_unencrypted,
980 le32_to_cpu(m->wep_icv_error_count),
981 le32_to_cpu(m->wep_excluded_count), m->encryption_level,
982 m->wep_default_key_id);
984 key_len = (m->encryption_level == 1) ?
985 WEP_SMALL_KEY_LEN : WEP_LARGE_KEY_LEN;
987 for (i = 0; i < WEP_KEYS; i++)
988 at76_dbg(DBG_MIB, "%s: MIB MAC_WEP: key %d: %*phD",
989 wiphy_name(priv->hw->wiphy), i,
990 key_len, m->wep_default_keyvalue[i]);
995 static void at76_dump_mib_mac_mgmt(struct at76_priv *priv)
998 struct mib_mac_mgmt *m = kmalloc(sizeof(struct mib_mac_mgmt),
1004 ret = at76_get_mib(priv->udev, MIB_MAC_MGMT, m,
1005 sizeof(struct mib_mac_mgmt));
1007 wiphy_err(priv->hw->wiphy,
1008 "at76_get_mib (MAC_MGMT) failed: %d\n", ret);
1012 at76_dbg(DBG_MIB, "%s: MIB MAC_MGMT: beacon_period %d CFP_max_duration "
1013 "%d medium_occupancy_limit %d station_id 0x%x ATIM_window %d "
1014 "CFP_mode %d privacy_opt_impl %d DTIM_period %d CFP_period %d "
1015 "current_bssid %pM current_essid %*phD current_bss_type %d "
1016 "pm_mode %d ibss_change %d res %d "
1017 "multi_domain_capability_implemented %d "
1018 "international_roaming %d country_string %.3s",
1019 wiphy_name(priv->hw->wiphy), le16_to_cpu(m->beacon_period),
1020 le16_to_cpu(m->CFP_max_duration),
1021 le16_to_cpu(m->medium_occupancy_limit),
1022 le16_to_cpu(m->station_id), le16_to_cpu(m->ATIM_window),
1023 m->CFP_mode, m->privacy_option_implemented, m->DTIM_period,
1024 m->CFP_period, m->current_bssid,
1025 IW_ESSID_MAX_SIZE, m->current_essid,
1026 m->current_bss_type, m->power_mgmt_mode, m->ibss_change,
1027 m->res, m->multi_domain_capability_implemented,
1028 m->multi_domain_capability_enabled, m->country_string);
1033 static void at76_dump_mib_mac(struct at76_priv *priv)
1036 struct mib_mac *m = kmalloc(sizeof(struct mib_mac), GFP_KERNEL);
1041 ret = at76_get_mib(priv->udev, MIB_MAC, m, sizeof(struct mib_mac));
1043 wiphy_err(priv->hw->wiphy,
1044 "at76_get_mib (MAC) failed: %d\n", ret);
1048 at76_dbg(DBG_MIB, "%s: MIB MAC: max_tx_msdu_lifetime %d "
1049 "max_rx_lifetime %d frag_threshold %d rts_threshold %d "
1050 "cwmin %d cwmax %d short_retry_time %d long_retry_time %d "
1051 "scan_type %d scan_channel %d probe_delay %u "
1052 "min_channel_time %d max_channel_time %d listen_int %d "
1053 "desired_ssid %*phD desired_bssid %pM desired_bsstype %d",
1054 wiphy_name(priv->hw->wiphy),
1055 le32_to_cpu(m->max_tx_msdu_lifetime),
1056 le32_to_cpu(m->max_rx_lifetime),
1057 le16_to_cpu(m->frag_threshold), le16_to_cpu(m->rts_threshold),
1058 le16_to_cpu(m->cwmin), le16_to_cpu(m->cwmax),
1059 m->short_retry_time, m->long_retry_time, m->scan_type,
1060 m->scan_channel, le16_to_cpu(m->probe_delay),
1061 le16_to_cpu(m->min_channel_time),
1062 le16_to_cpu(m->max_channel_time),
1063 le16_to_cpu(m->listen_interval),
1064 IW_ESSID_MAX_SIZE, m->desired_ssid,
1065 m->desired_bssid, m->desired_bsstype);
1070 static void at76_dump_mib_phy(struct at76_priv *priv)
1073 struct mib_phy *m = kmalloc(sizeof(struct mib_phy), GFP_KERNEL);
1078 ret = at76_get_mib(priv->udev, MIB_PHY, m, sizeof(struct mib_phy));
1080 wiphy_err(priv->hw->wiphy,
1081 "at76_get_mib (PHY) failed: %d\n", ret);
1085 at76_dbg(DBG_MIB, "%s: MIB PHY: ed_threshold %d slot_time %d "
1086 "sifs_time %d preamble_length %d plcp_header_length %d "
1087 "mpdu_max_length %d cca_mode_supported %d operation_rate_set "
1088 "0x%x 0x%x 0x%x 0x%x channel_id %d current_cca_mode %d "
1089 "phy_type %d current_reg_domain %d",
1090 wiphy_name(priv->hw->wiphy), le32_to_cpu(m->ed_threshold),
1091 le16_to_cpu(m->slot_time), le16_to_cpu(m->sifs_time),
1092 le16_to_cpu(m->preamble_length),
1093 le16_to_cpu(m->plcp_header_length),
1094 le16_to_cpu(m->mpdu_max_length),
1095 le16_to_cpu(m->cca_mode_supported), m->operation_rate_set[0],
1096 m->operation_rate_set[1], m->operation_rate_set[2],
1097 m->operation_rate_set[3], m->channel_id, m->current_cca_mode,
1098 m->phy_type, m->current_reg_domain);
1103 static void at76_dump_mib_local(struct at76_priv *priv)
1106 struct mib_local *m = kmalloc(sizeof(*m), GFP_KERNEL);
1111 ret = at76_get_mib(priv->udev, MIB_LOCAL, m, sizeof(*m));
1113 wiphy_err(priv->hw->wiphy,
1114 "at76_get_mib (LOCAL) failed: %d\n", ret);
1118 at76_dbg(DBG_MIB, "%s: MIB LOCAL: beacon_enable %d "
1119 "txautorate_fallback %d ssid_size %d promiscuous_mode %d "
1120 "preamble_type %d", wiphy_name(priv->hw->wiphy),
1122 m->txautorate_fallback, m->ssid_size, m->promiscuous_mode,
1128 static void at76_dump_mib_mdomain(struct at76_priv *priv)
1131 struct mib_mdomain *m = kmalloc(sizeof(struct mib_mdomain), GFP_KERNEL);
1136 ret = at76_get_mib(priv->udev, MIB_MDOMAIN, m,
1137 sizeof(struct mib_mdomain));
1139 wiphy_err(priv->hw->wiphy,
1140 "at76_get_mib (MDOMAIN) failed: %d\n", ret);
1144 at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: channel_list %*phD",
1145 wiphy_name(priv->hw->wiphy),
1146 (int)sizeof(m->channel_list), m->channel_list);
1148 at76_dbg(DBG_MIB, "%s: MIB MDOMAIN: tx_powerlevel %*phD",
1149 wiphy_name(priv->hw->wiphy),
1150 (int)sizeof(m->tx_powerlevel), m->tx_powerlevel);
1155 /* Enable monitor mode */
1156 static int at76_start_monitor(struct at76_priv *priv)
1158 struct at76_req_scan scan;
1161 memset(&scan, 0, sizeof(struct at76_req_scan));
1162 eth_broadcast_addr(scan.bssid);
1164 scan.channel = priv->channel;
1165 scan.scan_type = SCAN_TYPE_PASSIVE;
1166 scan.international_scan = 0;
1167 scan.min_channel_time = cpu_to_le16(priv->scan_min_time);
1168 scan.max_channel_time = cpu_to_le16(priv->scan_max_time);
1169 scan.probe_delay = cpu_to_le16(0);
1171 ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan));
1173 ret = at76_get_cmd_status(priv->udev, CMD_SCAN);
1178 /* Calculate padding from txbuf->wlength (which excludes the USB TX header),
1179 likely to compensate a flaw in the AT76C503A USB part ... */
1180 static inline int at76_calc_padding(int wlen)
1182 /* add the USB TX header */
1183 wlen += AT76_TX_HDRLEN;
1191 return 64 + 50 - wlen;
1196 static void at76_rx_callback(struct urb *urb)
1198 struct at76_priv *priv = urb->context;
1200 priv->rx_tasklet.data = (unsigned long)urb;
1201 tasklet_schedule(&priv->rx_tasklet);
1204 static int at76_submit_rx_urb(struct at76_priv *priv)
1208 struct sk_buff *skb = priv->rx_skb;
1210 if (!priv->rx_urb) {
1211 wiphy_err(priv->hw->wiphy, "%s: priv->rx_urb is NULL\n",
1217 skb = dev_alloc_skb(sizeof(struct at76_rx_buffer));
1219 wiphy_err(priv->hw->wiphy,
1220 "cannot allocate rx skbuff\n");
1226 skb_push(skb, skb_headroom(skb));
1230 size = skb_tailroom(skb);
1231 usb_fill_bulk_urb(priv->rx_urb, priv->udev, priv->rx_pipe,
1232 skb_put(skb, size), size, at76_rx_callback, priv);
1233 ret = usb_submit_urb(priv->rx_urb, GFP_ATOMIC);
1236 at76_dbg(DBG_DEVSTART,
1237 "usb_submit_urb returned -ENODEV");
1239 wiphy_err(priv->hw->wiphy,
1240 "rx, usb_submit_urb failed: %d\n", ret);
1244 if (ret < 0 && ret != -ENODEV)
1245 wiphy_err(priv->hw->wiphy,
1246 "cannot submit rx urb - please unload the driver and/or power cycle the device\n");
1251 /* Download external firmware */
1252 static int at76_load_external_fw(struct usb_device *udev, struct fwentry *fwe)
1259 u8 *buf = fwe->extfw;
1260 int size = fwe->extfw_size;
1265 op_mode = at76_get_op_mode(udev);
1266 at76_dbg(DBG_DEVSTART, "opmode %d", op_mode);
1268 if (op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) {
1269 dev_err(&udev->dev, "unexpected opmode %d\n", op_mode);
1273 block = kmalloc(FW_BLOCK_SIZE, GFP_KERNEL);
1277 at76_dbg(DBG_DEVSTART, "downloading external firmware");
1279 /* for fw >= 0.100, the device needs an extra empty block */
1281 bsize = min_t(int, size, FW_BLOCK_SIZE);
1282 memcpy(block, buf, bsize);
1283 at76_dbg(DBG_DEVSTART,
1284 "ext fw, size left = %5d, bsize = %4d, blockno = %2d",
1285 size, bsize, blockno);
1286 ret = at76_load_ext_fw_block(udev, blockno, block, bsize);
1289 "loading %dth firmware block failed: %d\n",
1297 } while (bsize > 0);
1299 if (at76_is_505a(fwe->board_type)) {
1300 at76_dbg(DBG_DEVSTART, "200 ms delay for 505a");
1301 schedule_timeout_interruptible(HZ / 5 + 1);
1308 "downloading external firmware failed: %d\n", ret);
1312 /* Download internal firmware */
1313 static int at76_load_internal_fw(struct usb_device *udev, struct fwentry *fwe)
1316 int need_remap = !at76_is_505a(fwe->board_type);
1318 ret = at76_usbdfu_download(udev, fwe->intfw, fwe->intfw_size,
1319 need_remap ? 0 : 2 * HZ);
1323 "downloading internal fw failed with %d\n", ret);
1327 at76_dbg(DBG_DEVSTART, "sending REMAP");
1329 /* no REMAP for 505A (see SF driver) */
1331 ret = at76_remap(udev);
1334 "sending REMAP failed with %d\n", ret);
1339 at76_dbg(DBG_DEVSTART, "sleeping for 2 seconds");
1340 schedule_timeout_interruptible(2 * HZ + 1);
1341 usb_reset_device(udev);
1347 static int at76_startup_device(struct at76_priv *priv)
1349 struct at76_card_config *ccfg = &priv->card_config;
1352 at76_dbg(DBG_PARAMS,
1353 "%s param: ssid %.*s (%*phD) mode %s ch %d wep %s key %d "
1354 "keylen %d", wiphy_name(priv->hw->wiphy), priv->essid_size,
1355 priv->essid, IW_ESSID_MAX_SIZE, priv->essid,
1356 priv->iw_mode == IW_MODE_ADHOC ? "adhoc" : "infra",
1357 priv->channel, priv->wep_enabled ? "enabled" : "disabled",
1358 priv->wep_key_id, priv->wep_keys_len[priv->wep_key_id]);
1359 at76_dbg(DBG_PARAMS,
1360 "%s param: preamble %s rts %d retry %d frag %d "
1361 "txrate %s auth_mode %d", wiphy_name(priv->hw->wiphy),
1362 preambles[priv->preamble_type], priv->rts_threshold,
1363 priv->short_retry_limit, priv->frag_threshold,
1364 priv->txrate == TX_RATE_1MBIT ? "1MBit" : priv->txrate ==
1365 TX_RATE_2MBIT ? "2MBit" : priv->txrate ==
1366 TX_RATE_5_5MBIT ? "5.5MBit" : priv->txrate ==
1367 TX_RATE_11MBIT ? "11MBit" : priv->txrate ==
1368 TX_RATE_AUTO ? "auto" : "<invalid>", priv->auth_mode);
1369 at76_dbg(DBG_PARAMS,
1370 "%s param: pm_mode %d pm_period %d auth_mode %s "
1371 "scan_times %d %d scan_mode %s",
1372 wiphy_name(priv->hw->wiphy), priv->pm_mode, priv->pm_period,
1373 priv->auth_mode == WLAN_AUTH_OPEN ? "open" : "shared_secret",
1374 priv->scan_min_time, priv->scan_max_time,
1375 priv->scan_mode == SCAN_TYPE_ACTIVE ? "active" : "passive");
1377 memset(ccfg, 0, sizeof(struct at76_card_config));
1378 ccfg->promiscuous_mode = 0;
1379 ccfg->short_retry_limit = priv->short_retry_limit;
1381 if (priv->wep_enabled) {
1382 if (priv->wep_keys_len[priv->wep_key_id] > WEP_SMALL_KEY_LEN)
1383 ccfg->encryption_type = 2;
1385 ccfg->encryption_type = 1;
1387 /* jal: always exclude unencrypted if WEP is active */
1388 ccfg->exclude_unencrypted = 1;
1390 ccfg->exclude_unencrypted = 0;
1391 ccfg->encryption_type = 0;
1394 ccfg->rts_threshold = cpu_to_le16(priv->rts_threshold);
1395 ccfg->fragmentation_threshold = cpu_to_le16(priv->frag_threshold);
1397 memcpy(ccfg->basic_rate_set, hw_rates, 4);
1398 /* jal: really needed, we do a set_mib for autorate later ??? */
1399 ccfg->auto_rate_fallback = (priv->txrate == TX_RATE_AUTO ? 1 : 0);
1400 ccfg->channel = priv->channel;
1401 ccfg->privacy_invoked = priv->wep_enabled;
1402 memcpy(ccfg->current_ssid, priv->essid, IW_ESSID_MAX_SIZE);
1403 ccfg->ssid_len = priv->essid_size;
1405 ccfg->wep_default_key_id = priv->wep_key_id;
1406 memcpy(ccfg->wep_default_key_value, priv->wep_keys,
1407 sizeof(priv->wep_keys));
1409 ccfg->short_preamble = priv->preamble_type;
1410 ccfg->beacon_period = cpu_to_le16(priv->beacon_period);
1412 ret = at76_set_card_command(priv->udev, CMD_STARTUP, &priv->card_config,
1413 sizeof(struct at76_card_config));
1415 wiphy_err(priv->hw->wiphy, "at76_set_card_command failed: %d\n",
1420 at76_wait_completion(priv, CMD_STARTUP);
1422 /* remove BSSID from previous run */
1423 eth_zero_addr(priv->bssid);
1425 priv->scanning = false;
1427 if (at76_set_radio(priv, 1) == 1)
1428 at76_wait_completion(priv, CMD_RADIO_ON);
1430 ret = at76_set_preamble(priv, priv->preamble_type);
1434 ret = at76_set_frag(priv, priv->frag_threshold);
1438 ret = at76_set_rts(priv, priv->rts_threshold);
1442 ret = at76_set_autorate_fallback(priv,
1443 priv->txrate == TX_RATE_AUTO ? 1 : 0);
1447 ret = at76_set_pm_mode(priv);
1451 if (at76_debug & DBG_MIB) {
1452 at76_dump_mib_mac(priv);
1453 at76_dump_mib_mac_addr(priv);
1454 at76_dump_mib_mac_mgmt(priv);
1455 at76_dump_mib_mac_wep(priv);
1456 at76_dump_mib_mdomain(priv);
1457 at76_dump_mib_phy(priv);
1458 at76_dump_mib_local(priv);
1464 /* Enable or disable promiscuous mode */
1465 static void at76_work_set_promisc(struct work_struct *work)
1467 struct at76_priv *priv = container_of(work, struct at76_priv,
1471 if (priv->device_unplugged)
1474 mutex_lock(&priv->mtx);
1476 priv->mib_buf.type = MIB_LOCAL;
1477 priv->mib_buf.size = 1;
1478 priv->mib_buf.index = offsetof(struct mib_local, promiscuous_mode);
1479 priv->mib_buf.data.byte = priv->promisc ? 1 : 0;
1481 ret = at76_set_mib(priv, &priv->mib_buf);
1483 wiphy_err(priv->hw->wiphy,
1484 "set_mib (promiscuous_mode) failed: %d\n", ret);
1486 mutex_unlock(&priv->mtx);
1489 /* Submit Rx urb back to the device */
1490 static void at76_work_submit_rx(struct work_struct *work)
1492 struct at76_priv *priv = container_of(work, struct at76_priv,
1495 mutex_lock(&priv->mtx);
1496 at76_submit_rx_urb(priv);
1497 mutex_unlock(&priv->mtx);
1500 /* This is a workaround to make scan working:
1501 * currently mac80211 does not process frames with no frequency
1503 * However during scan the HW performs a sweep by itself, and we
1504 * are unable to know where the radio is actually tuned.
1505 * This function tries to do its best to guess this information..
1506 * During scan, If the current frame is a beacon or a probe response,
1507 * the channel information is extracted from it.
1508 * When not scanning, for other frames, or if it happens that for
1509 * whatever reason we fail to parse beacons and probe responses, this
1510 * function returns the priv->channel information, that should be correct
1511 * at least when we are not scanning.
1513 static inline int at76_guess_freq(struct at76_priv *priv)
1517 int channel = priv->channel;
1518 int len = priv->rx_skb->len;
1519 struct ieee80211_hdr *hdr = (void *)priv->rx_skb->data;
1521 if (!priv->scanning)
1527 if (ieee80211_is_probe_resp(hdr->frame_control)) {
1528 el_off = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
1529 el = ((struct ieee80211_mgmt *)hdr)->u.probe_resp.variable;
1530 } else if (ieee80211_is_beacon(hdr->frame_control)) {
1531 el_off = offsetof(struct ieee80211_mgmt, u.beacon.variable);
1532 el = ((struct ieee80211_mgmt *)hdr)->u.beacon.variable;
1538 el = cfg80211_find_ie(WLAN_EID_DS_PARAMS, el, len);
1539 if (el && el[1] > 0)
1543 return ieee80211_channel_to_frequency(channel, NL80211_BAND_2GHZ);
1546 static void at76_rx_tasklet(unsigned long param)
1548 struct urb *urb = (struct urb *)param;
1549 struct at76_priv *priv = urb->context;
1550 struct at76_rx_buffer *buf;
1551 struct ieee80211_rx_status rx_status = { 0 };
1553 if (priv->device_unplugged) {
1554 at76_dbg(DBG_DEVSTART, "device unplugged");
1555 at76_dbg(DBG_DEVSTART, "urb status %d", urb->status);
1559 if (!priv->rx_skb || !priv->rx_skb->data)
1562 buf = (struct at76_rx_buffer *)priv->rx_skb->data;
1564 if (urb->status != 0) {
1565 if (urb->status != -ENOENT && urb->status != -ECONNRESET)
1567 "%s %s: - nonzero Rx bulk status received: %d",
1568 __func__, wiphy_name(priv->hw->wiphy),
1573 at76_dbg(DBG_RX_ATMEL_HDR,
1574 "%s: rx frame: rate %d rssi %d noise %d link %d",
1575 wiphy_name(priv->hw->wiphy), buf->rx_rate, buf->rssi,
1576 buf->noise_level, buf->link_quality);
1578 skb_pull(priv->rx_skb, AT76_RX_HDRLEN);
1579 skb_trim(priv->rx_skb, le16_to_cpu(buf->wlength));
1580 at76_dbg_dump(DBG_RX_DATA, priv->rx_skb->data,
1581 priv->rx_skb->len, "RX: len=%d", priv->rx_skb->len);
1583 rx_status.signal = buf->rssi;
1584 rx_status.flag |= RX_FLAG_DECRYPTED;
1585 rx_status.flag |= RX_FLAG_IV_STRIPPED;
1586 rx_status.band = NL80211_BAND_2GHZ;
1587 rx_status.freq = at76_guess_freq(priv);
1589 at76_dbg(DBG_MAC80211, "calling ieee80211_rx_irqsafe(): %d/%d",
1590 priv->rx_skb->len, priv->rx_skb->data_len);
1591 memcpy(IEEE80211_SKB_RXCB(priv->rx_skb), &rx_status, sizeof(rx_status));
1592 ieee80211_rx_irqsafe(priv->hw, priv->rx_skb);
1594 /* Use a new skb for the next receive */
1595 priv->rx_skb = NULL;
1597 at76_submit_rx_urb(priv);
1600 /* Load firmware into kernel memory and parse it */
1601 static struct fwentry *at76_load_firmware(struct usb_device *udev,
1602 enum board_type board_type)
1606 struct at76_fw_header *fwh;
1607 struct fwentry *fwe = &firmwares[board_type];
1609 mutex_lock(&fw_mutex);
1612 at76_dbg(DBG_FW, "re-using previously loaded fw");
1616 at76_dbg(DBG_FW, "downloading firmware %s", fwe->fwname);
1617 ret = reject_firmware(&fwe->fw, fwe->fwname, &udev->dev);
1619 dev_err(&udev->dev, "firmware %s not found!\n",
1622 "you may need to download the firmware from http://developer.berlios.de/projects/at76c503a/\n");
1626 at76_dbg(DBG_FW, "got it.");
1627 fwh = (struct at76_fw_header *)(fwe->fw->data);
1629 if (fwe->fw->size <= sizeof(*fwh)) {
1631 "firmware is too short (0x%zx)\n", fwe->fw->size);
1635 /* CRC currently not checked */
1636 fwe->board_type = le32_to_cpu(fwh->board_type);
1637 if (fwe->board_type != board_type) {
1639 "board type mismatch, requested %u, got %u\n",
1640 board_type, fwe->board_type);
1644 fwe->fw_version.major = fwh->major;
1645 fwe->fw_version.minor = fwh->minor;
1646 fwe->fw_version.patch = fwh->patch;
1647 fwe->fw_version.build = fwh->build;
1649 str = (char *)fwh + le32_to_cpu(fwh->str_offset);
1650 fwe->intfw = (u8 *)fwh + le32_to_cpu(fwh->int_fw_offset);
1651 fwe->intfw_size = le32_to_cpu(fwh->int_fw_len);
1652 fwe->extfw = (u8 *)fwh + le32_to_cpu(fwh->ext_fw_offset);
1653 fwe->extfw_size = le32_to_cpu(fwh->ext_fw_len);
1657 dev_printk(KERN_DEBUG, &udev->dev,
1658 "using firmware %s (version %d.%d.%d-%d)\n",
1659 fwe->fwname, fwh->major, fwh->minor, fwh->patch, fwh->build);
1661 at76_dbg(DBG_DEVSTART, "board %u, int %d:%d, ext %d:%d", board_type,
1662 le32_to_cpu(fwh->int_fw_offset), le32_to_cpu(fwh->int_fw_len),
1663 le32_to_cpu(fwh->ext_fw_offset), le32_to_cpu(fwh->ext_fw_len));
1664 at76_dbg(DBG_DEVSTART, "firmware id %s", str);
1667 mutex_unlock(&fw_mutex);
1675 static int at76_join(struct at76_priv *priv)
1677 struct at76_req_join join;
1680 memset(&join, 0, sizeof(struct at76_req_join));
1681 memcpy(join.essid, priv->essid, priv->essid_size);
1682 join.essid_size = priv->essid_size;
1683 memcpy(join.bssid, priv->bssid, ETH_ALEN);
1684 join.bss_type = INFRASTRUCTURE_MODE;
1685 join.channel = priv->channel;
1686 join.timeout = cpu_to_le16(2000);
1688 at76_dbg(DBG_MAC80211, "%s: sending CMD_JOIN", __func__);
1689 ret = at76_set_card_command(priv->udev, CMD_JOIN, &join,
1690 sizeof(struct at76_req_join));
1693 wiphy_err(priv->hw->wiphy, "at76_set_card_command failed: %d\n",
1698 ret = at76_wait_completion(priv, CMD_JOIN);
1699 at76_dbg(DBG_MAC80211, "%s: CMD_JOIN returned: 0x%02x", __func__, ret);
1700 if (ret != CMD_STATUS_COMPLETE) {
1701 wiphy_err(priv->hw->wiphy, "at76_wait_completion failed: %d\n",
1706 at76_set_pm_mode(priv);
1711 static void at76_work_join_bssid(struct work_struct *work)
1713 struct at76_priv *priv = container_of(work, struct at76_priv,
1716 if (priv->device_unplugged)
1719 mutex_lock(&priv->mtx);
1721 if (is_valid_ether_addr(priv->bssid))
1724 mutex_unlock(&priv->mtx);
1727 static void at76_mac80211_tx_callback(struct urb *urb)
1729 struct at76_priv *priv = urb->context;
1730 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(priv->tx_skb);
1732 at76_dbg(DBG_MAC80211, "%s()", __func__);
1734 switch (urb->status) {
1737 info->flags |= IEEE80211_TX_STAT_ACK;
1741 /* fail, urb has been unlinked */
1742 /* FIXME: add error message */
1745 at76_dbg(DBG_URB, "%s - nonzero tx status received: %d",
1746 __func__, urb->status);
1750 memset(&info->status, 0, sizeof(info->status));
1752 ieee80211_tx_status_irqsafe(priv->hw, priv->tx_skb);
1754 priv->tx_skb = NULL;
1756 ieee80211_wake_queues(priv->hw);
1759 static void at76_mac80211_tx(struct ieee80211_hw *hw,
1760 struct ieee80211_tx_control *control,
1761 struct sk_buff *skb)
1763 struct at76_priv *priv = hw->priv;
1764 struct at76_tx_buffer *tx_buffer = priv->bulk_out_buffer;
1765 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1766 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
1767 int padding, submit_len, ret;
1769 at76_dbg(DBG_MAC80211, "%s()", __func__);
1771 if (priv->tx_urb->status == -EINPROGRESS) {
1772 wiphy_err(priv->hw->wiphy,
1773 "%s called while tx urb is pending\n", __func__);
1774 dev_kfree_skb_any(skb);
1778 /* The following code lines are important when the device is going to
1779 * authenticate with a new bssid. The driver must send CMD_JOIN before
1780 * an authentication frame is transmitted. For this to succeed, the
1781 * correct bssid of the AP must be known. As mac80211 does not inform
1782 * drivers about the bssid prior to the authentication process the
1783 * following workaround is necessary. If the TX frame is an
1784 * authentication frame extract the bssid and send the CMD_JOIN. */
1785 if (mgmt->frame_control & cpu_to_le16(IEEE80211_STYPE_AUTH)) {
1786 if (!ether_addr_equal_64bits(priv->bssid, mgmt->bssid)) {
1787 memcpy(priv->bssid, mgmt->bssid, ETH_ALEN);
1788 ieee80211_queue_work(hw, &priv->work_join_bssid);
1789 dev_kfree_skb_any(skb);
1794 ieee80211_stop_queues(hw);
1796 at76_ledtrig_tx_activity(); /* tell ledtrigger we send a packet */
1798 WARN_ON(priv->tx_skb != NULL);
1801 padding = at76_calc_padding(skb->len);
1802 submit_len = AT76_TX_HDRLEN + skb->len + padding;
1804 /* setup 'Atmel' header */
1805 memset(tx_buffer, 0, sizeof(*tx_buffer));
1806 tx_buffer->padding = padding;
1807 tx_buffer->wlength = cpu_to_le16(skb->len);
1808 tx_buffer->tx_rate = ieee80211_get_tx_rate(hw, info)->hw_value;
1809 memset(tx_buffer->reserved, 0, sizeof(tx_buffer->reserved));
1810 memcpy(tx_buffer->packet, skb->data, skb->len);
1812 at76_dbg(DBG_TX_DATA, "%s tx: wlen 0x%x pad 0x%x rate %d hdr",
1813 wiphy_name(priv->hw->wiphy), le16_to_cpu(tx_buffer->wlength),
1814 tx_buffer->padding, tx_buffer->tx_rate);
1817 at76_dbg_dump(DBG_TX_DATA_CONTENT, tx_buffer, submit_len,
1818 "%s(): tx_buffer %d bytes:", __func__, submit_len);
1819 usb_fill_bulk_urb(priv->tx_urb, priv->udev, priv->tx_pipe, tx_buffer,
1820 submit_len, at76_mac80211_tx_callback, priv);
1821 ret = usb_submit_urb(priv->tx_urb, GFP_ATOMIC);
1823 wiphy_err(priv->hw->wiphy, "error in tx submit urb: %d\n", ret);
1825 wiphy_err(priv->hw->wiphy,
1826 "-EINVAL: tx urb %p hcpriv %p complete %p\n",
1828 priv->tx_urb->hcpriv, priv->tx_urb->complete);
1832 static int at76_mac80211_start(struct ieee80211_hw *hw)
1834 struct at76_priv *priv = hw->priv;
1837 at76_dbg(DBG_MAC80211, "%s()", __func__);
1839 mutex_lock(&priv->mtx);
1841 ret = at76_submit_rx_urb(priv);
1843 wiphy_err(priv->hw->wiphy, "open: submit_rx_urb failed: %d\n",
1848 at76_startup_device(priv);
1850 at76_start_monitor(priv);
1853 mutex_unlock(&priv->mtx);
1858 static void at76_mac80211_stop(struct ieee80211_hw *hw)
1860 struct at76_priv *priv = hw->priv;
1862 at76_dbg(DBG_MAC80211, "%s()", __func__);
1864 cancel_delayed_work(&priv->dwork_hw_scan);
1865 cancel_work_sync(&priv->work_join_bssid);
1866 cancel_work_sync(&priv->work_set_promisc);
1868 mutex_lock(&priv->mtx);
1870 if (!priv->device_unplugged) {
1871 /* We are called by "ifconfig ethX down", not because the
1872 * device is not available anymore. */
1873 at76_set_radio(priv, 0);
1875 /* We unlink rx_urb because at76_open() re-submits it.
1876 * If unplugged, at76_delete_device() takes care of it. */
1877 usb_kill_urb(priv->rx_urb);
1880 mutex_unlock(&priv->mtx);
1883 static int at76_add_interface(struct ieee80211_hw *hw,
1884 struct ieee80211_vif *vif)
1886 struct at76_priv *priv = hw->priv;
1889 at76_dbg(DBG_MAC80211, "%s()", __func__);
1891 mutex_lock(&priv->mtx);
1893 switch (vif->type) {
1894 case NL80211_IFTYPE_STATION:
1895 priv->iw_mode = IW_MODE_INFRA;
1903 mutex_unlock(&priv->mtx);
1908 static void at76_remove_interface(struct ieee80211_hw *hw,
1909 struct ieee80211_vif *vif)
1911 at76_dbg(DBG_MAC80211, "%s()", __func__);
1914 static void at76_dwork_hw_scan(struct work_struct *work)
1916 struct at76_priv *priv = container_of(work, struct at76_priv,
1917 dwork_hw_scan.work);
1918 struct cfg80211_scan_info info = {
1923 if (priv->device_unplugged)
1926 mutex_lock(&priv->mtx);
1928 ret = at76_get_cmd_status(priv->udev, CMD_SCAN);
1929 at76_dbg(DBG_MAC80211, "%s: CMD_SCAN status 0x%02x", __func__, ret);
1931 /* FIXME: add maximum time for scan to complete */
1933 if (ret != CMD_STATUS_COMPLETE) {
1934 ieee80211_queue_delayed_work(priv->hw, &priv->dwork_hw_scan,
1935 SCAN_POLL_INTERVAL);
1936 mutex_unlock(&priv->mtx);
1940 if (is_valid_ether_addr(priv->bssid))
1943 priv->scanning = false;
1945 mutex_unlock(&priv->mtx);
1947 ieee80211_scan_completed(priv->hw, &info);
1949 ieee80211_wake_queues(priv->hw);
1952 static int at76_hw_scan(struct ieee80211_hw *hw,
1953 struct ieee80211_vif *vif,
1954 struct ieee80211_scan_request *hw_req)
1956 struct cfg80211_scan_request *req = &hw_req->req;
1957 struct at76_priv *priv = hw->priv;
1958 struct at76_req_scan scan;
1962 at76_dbg(DBG_MAC80211, "%s():", __func__);
1964 if (priv->device_unplugged)
1967 mutex_lock(&priv->mtx);
1969 ieee80211_stop_queues(hw);
1971 memset(&scan, 0, sizeof(struct at76_req_scan));
1972 eth_broadcast_addr(scan.bssid);
1975 scan.scan_type = SCAN_TYPE_ACTIVE;
1976 ssid = req->ssids[0].ssid;
1977 len = req->ssids[0].ssid_len;
1979 scan.scan_type = SCAN_TYPE_PASSIVE;
1983 memcpy(scan.essid, ssid, len);
1984 scan.essid_size = len;
1987 scan.min_channel_time = cpu_to_le16(priv->scan_min_time);
1988 scan.max_channel_time = cpu_to_le16(priv->scan_max_time);
1989 scan.probe_delay = cpu_to_le16(priv->scan_min_time * 1000);
1990 scan.international_scan = 0;
1992 at76_dbg(DBG_MAC80211, "%s: sending CMD_SCAN", __func__);
1993 ret = at76_set_card_command(priv->udev, CMD_SCAN, &scan, sizeof(scan));
1996 wiphy_err(priv->hw->wiphy, "CMD_SCAN failed: %d\n", ret);
2000 priv->scanning = true;
2001 ieee80211_queue_delayed_work(priv->hw, &priv->dwork_hw_scan,
2002 SCAN_POLL_INTERVAL);
2005 mutex_unlock(&priv->mtx);
2010 static int at76_config(struct ieee80211_hw *hw, u32 changed)
2012 struct at76_priv *priv = hw->priv;
2014 at76_dbg(DBG_MAC80211, "%s(): channel %d",
2015 __func__, hw->conf.chandef.chan->hw_value);
2016 at76_dbg_dump(DBG_MAC80211, priv->bssid, ETH_ALEN, "bssid:");
2018 mutex_lock(&priv->mtx);
2020 priv->channel = hw->conf.chandef.chan->hw_value;
2022 if (is_valid_ether_addr(priv->bssid))
2025 at76_start_monitor(priv);
2027 mutex_unlock(&priv->mtx);
2032 static void at76_bss_info_changed(struct ieee80211_hw *hw,
2033 struct ieee80211_vif *vif,
2034 struct ieee80211_bss_conf *conf,
2037 struct at76_priv *priv = hw->priv;
2039 at76_dbg(DBG_MAC80211, "%s():", __func__);
2041 if (!(changed & BSS_CHANGED_BSSID))
2044 at76_dbg_dump(DBG_MAC80211, conf->bssid, ETH_ALEN, "bssid:");
2046 mutex_lock(&priv->mtx);
2048 memcpy(priv->bssid, conf->bssid, ETH_ALEN);
2050 if (is_valid_ether_addr(priv->bssid))
2051 /* mac80211 is joining a bss */
2054 mutex_unlock(&priv->mtx);
2057 /* must be atomic */
2058 static void at76_configure_filter(struct ieee80211_hw *hw,
2059 unsigned int changed_flags,
2060 unsigned int *total_flags, u64 multicast)
2062 struct at76_priv *priv = hw->priv;
2065 at76_dbg(DBG_MAC80211, "%s(): changed_flags=0x%08x "
2066 "total_flags=0x%08x",
2067 __func__, changed_flags, *total_flags);
2069 flags = changed_flags & AT76_SUPPORTED_FILTERS;
2070 *total_flags = AT76_SUPPORTED_FILTERS;
2072 /* Bail out after updating flags to prevent a WARN_ON in mac80211. */
2073 if (priv->device_unplugged)
2076 /* FIXME: access to priv->promisc should be protected with
2077 * priv->mtx, but it's impossible because this function needs to be
2080 if (flags && !priv->promisc) {
2081 /* mac80211 wants us to enable promiscuous mode */
2083 } else if (!flags && priv->promisc) {
2084 /* we need to disable promiscuous mode */
2089 ieee80211_queue_work(hw, &priv->work_set_promisc);
2092 static int at76_set_wep(struct at76_priv *priv)
2095 struct mib_mac_wep *mib_data = &priv->mib_buf.data.wep_mib;
2097 priv->mib_buf.type = MIB_MAC_WEP;
2098 priv->mib_buf.size = sizeof(struct mib_mac_wep);
2099 priv->mib_buf.index = 0;
2101 memset(mib_data, 0, sizeof(*mib_data));
2103 if (priv->wep_enabled) {
2104 if (priv->wep_keys_len[priv->wep_key_id] > WEP_SMALL_KEY_LEN)
2105 mib_data->encryption_level = 2;
2107 mib_data->encryption_level = 1;
2109 /* always exclude unencrypted if WEP is active */
2110 mib_data->exclude_unencrypted = 1;
2112 mib_data->exclude_unencrypted = 0;
2113 mib_data->encryption_level = 0;
2116 mib_data->privacy_invoked = priv->wep_enabled;
2117 mib_data->wep_default_key_id = priv->wep_key_id;
2118 memcpy(mib_data->wep_default_keyvalue, priv->wep_keys,
2119 sizeof(priv->wep_keys));
2121 ret = at76_set_mib(priv, &priv->mib_buf);
2124 wiphy_err(priv->hw->wiphy,
2125 "set_mib (wep) failed: %d\n", ret);
2130 static int at76_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
2131 struct ieee80211_vif *vif, struct ieee80211_sta *sta,
2132 struct ieee80211_key_conf *key)
2134 struct at76_priv *priv = hw->priv;
2138 at76_dbg(DBG_MAC80211, "%s(): cmd %d key->cipher %d key->keyidx %d "
2140 __func__, cmd, key->cipher, key->keyidx, key->keylen);
2142 if ((key->cipher != WLAN_CIPHER_SUITE_WEP40) &&
2143 (key->cipher != WLAN_CIPHER_SUITE_WEP104))
2146 key->hw_key_idx = key->keyidx;
2148 mutex_lock(&priv->mtx);
2152 memcpy(priv->wep_keys[key->keyidx], key->key, key->keylen);
2153 priv->wep_keys_len[key->keyidx] = key->keylen;
2155 /* FIXME: find out how to do this properly */
2156 priv->wep_key_id = key->keyidx;
2161 priv->wep_keys_len[key->keyidx] = 0;
2165 priv->wep_enabled = 0;
2167 for (i = 0; i < WEP_KEYS; i++) {
2168 if (priv->wep_keys_len[i] != 0)
2169 priv->wep_enabled = 1;
2174 mutex_unlock(&priv->mtx);
2179 static const struct ieee80211_ops at76_ops = {
2180 .tx = at76_mac80211_tx,
2181 .add_interface = at76_add_interface,
2182 .remove_interface = at76_remove_interface,
2183 .config = at76_config,
2184 .bss_info_changed = at76_bss_info_changed,
2185 .configure_filter = at76_configure_filter,
2186 .start = at76_mac80211_start,
2187 .stop = at76_mac80211_stop,
2188 .hw_scan = at76_hw_scan,
2189 .set_key = at76_set_key,
2192 /* Allocate network device and initialize private data */
2193 static struct at76_priv *at76_alloc_new_device(struct usb_device *udev)
2195 struct ieee80211_hw *hw;
2196 struct at76_priv *priv;
2198 hw = ieee80211_alloc_hw(sizeof(struct at76_priv), &at76_ops);
2200 printk(KERN_ERR DRIVER_NAME ": could not register"
2210 mutex_init(&priv->mtx);
2211 INIT_WORK(&priv->work_set_promisc, at76_work_set_promisc);
2212 INIT_WORK(&priv->work_submit_rx, at76_work_submit_rx);
2213 INIT_WORK(&priv->work_join_bssid, at76_work_join_bssid);
2214 INIT_DELAYED_WORK(&priv->dwork_hw_scan, at76_dwork_hw_scan);
2216 tasklet_init(&priv->rx_tasklet, at76_rx_tasklet, 0);
2218 priv->pm_mode = AT76_PM_OFF;
2219 priv->pm_period = 0;
2226 static int at76_alloc_urbs(struct at76_priv *priv,
2227 struct usb_interface *interface)
2229 struct usb_endpoint_descriptor *endpoint, *ep_in, *ep_out;
2232 struct usb_host_interface *iface_desc;
2234 at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__);
2236 at76_dbg(DBG_URB, "%s: NumEndpoints %d ", __func__,
2237 interface->altsetting[0].desc.bNumEndpoints);
2241 iface_desc = interface->cur_altsetting;
2242 for (i = 0; i < iface_desc->desc.bNumEndpoints; i++) {
2243 endpoint = &iface_desc->endpoint[i].desc;
2245 at76_dbg(DBG_URB, "%s: %d. endpoint: addr 0x%x attr 0x%x",
2246 __func__, i, endpoint->bEndpointAddress,
2247 endpoint->bmAttributes);
2249 if (!ep_in && usb_endpoint_is_bulk_in(endpoint))
2252 if (!ep_out && usb_endpoint_is_bulk_out(endpoint))
2256 if (!ep_in || !ep_out) {
2257 dev_err(&interface->dev, "bulk endpoints missing\n");
2261 priv->rx_pipe = usb_rcvbulkpipe(priv->udev, ep_in->bEndpointAddress);
2262 priv->tx_pipe = usb_sndbulkpipe(priv->udev, ep_out->bEndpointAddress);
2264 priv->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
2265 priv->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
2266 if (!priv->rx_urb || !priv->tx_urb) {
2267 dev_err(&interface->dev, "cannot allocate URB\n");
2271 buffer_size = sizeof(struct at76_tx_buffer) + MAX_PADDING_SIZE;
2272 priv->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL);
2273 if (!priv->bulk_out_buffer)
2276 at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__);
2281 static struct ieee80211_rate at76_rates[] = {
2282 { .bitrate = 10, .hw_value = TX_RATE_1MBIT, },
2283 { .bitrate = 20, .hw_value = TX_RATE_2MBIT, },
2284 { .bitrate = 55, .hw_value = TX_RATE_5_5MBIT, },
2285 { .bitrate = 110, .hw_value = TX_RATE_11MBIT, },
2288 static struct ieee80211_channel at76_channels[] = {
2289 { .center_freq = 2412, .hw_value = 1 },
2290 { .center_freq = 2417, .hw_value = 2 },
2291 { .center_freq = 2422, .hw_value = 3 },
2292 { .center_freq = 2427, .hw_value = 4 },
2293 { .center_freq = 2432, .hw_value = 5 },
2294 { .center_freq = 2437, .hw_value = 6 },
2295 { .center_freq = 2442, .hw_value = 7 },
2296 { .center_freq = 2447, .hw_value = 8 },
2297 { .center_freq = 2452, .hw_value = 9 },
2298 { .center_freq = 2457, .hw_value = 10 },
2299 { .center_freq = 2462, .hw_value = 11 },
2300 { .center_freq = 2467, .hw_value = 12 },
2301 { .center_freq = 2472, .hw_value = 13 },
2302 { .center_freq = 2484, .hw_value = 14 }
2305 static struct ieee80211_supported_band at76_supported_band = {
2306 .channels = at76_channels,
2307 .n_channels = ARRAY_SIZE(at76_channels),
2308 .bitrates = at76_rates,
2309 .n_bitrates = ARRAY_SIZE(at76_rates),
2312 /* Register network device and initialize the hardware */
2313 static int at76_init_new_device(struct at76_priv *priv,
2314 struct usb_interface *interface)
2316 struct wiphy *wiphy;
2320 /* set up the endpoint information */
2321 /* check out the endpoints */
2323 at76_dbg(DBG_DEVSTART, "USB interface: %d endpoints",
2324 interface->cur_altsetting->desc.bNumEndpoints);
2326 ret = at76_alloc_urbs(priv, interface);
2331 ret = at76_get_hw_config(priv);
2333 dev_err(&interface->dev, "cannot get MAC address\n");
2337 priv->domain = at76_get_reg_domain(priv->regulatory_domain);
2339 priv->channel = DEF_CHANNEL;
2340 priv->iw_mode = IW_MODE_INFRA;
2341 priv->rts_threshold = DEF_RTS_THRESHOLD;
2342 priv->frag_threshold = DEF_FRAG_THRESHOLD;
2343 priv->short_retry_limit = DEF_SHORT_RETRY_LIMIT;
2344 priv->txrate = TX_RATE_AUTO;
2345 priv->preamble_type = PREAMBLE_TYPE_LONG;
2346 priv->beacon_period = 100;
2347 priv->auth_mode = WLAN_AUTH_OPEN;
2348 priv->scan_min_time = DEF_SCAN_MIN_TIME;
2349 priv->scan_max_time = DEF_SCAN_MAX_TIME;
2350 priv->scan_mode = SCAN_TYPE_ACTIVE;
2351 priv->device_unplugged = 0;
2353 /* mac80211 initialisation */
2354 wiphy = priv->hw->wiphy;
2355 priv->hw->wiphy->max_scan_ssids = 1;
2356 priv->hw->wiphy->max_scan_ie_len = 0;
2357 priv->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
2358 priv->hw->wiphy->bands[NL80211_BAND_2GHZ] = &at76_supported_band;
2359 ieee80211_hw_set(priv->hw, RX_INCLUDES_FCS);
2360 ieee80211_hw_set(priv->hw, SIGNAL_UNSPEC);
2361 priv->hw->max_signal = 100;
2363 SET_IEEE80211_DEV(priv->hw, &interface->dev);
2364 SET_IEEE80211_PERM_ADDR(priv->hw, priv->mac_addr);
2366 len = sizeof(wiphy->fw_version);
2367 snprintf(wiphy->fw_version, len, "%d.%d.%d-%d",
2368 priv->fw_version.major, priv->fw_version.minor,
2369 priv->fw_version.patch, priv->fw_version.build);
2371 wiphy->hw_version = priv->board_type;
2373 ret = ieee80211_register_hw(priv->hw);
2375 printk(KERN_ERR "cannot register mac80211 hw (status %d)!\n",
2380 priv->mac80211_registered = 1;
2382 wiphy_info(priv->hw->wiphy, "USB %s, MAC %pM, firmware %d.%d.%d-%d\n",
2383 dev_name(&interface->dev), priv->mac_addr,
2384 priv->fw_version.major, priv->fw_version.minor,
2385 priv->fw_version.patch, priv->fw_version.build);
2386 wiphy_info(priv->hw->wiphy, "regulatory domain 0x%02x: %s\n",
2387 priv->regulatory_domain, priv->domain->name);
2393 static void at76_delete_device(struct at76_priv *priv)
2395 at76_dbg(DBG_PROC_ENTRY, "%s: ENTER", __func__);
2397 /* The device is gone, don't bother turning it off */
2398 priv->device_unplugged = 1;
2400 tasklet_kill(&priv->rx_tasklet);
2402 if (priv->mac80211_registered)
2403 ieee80211_unregister_hw(priv->hw);
2406 usb_kill_urb(priv->tx_urb);
2407 usb_free_urb(priv->tx_urb);
2410 usb_kill_urb(priv->rx_urb);
2411 usb_free_urb(priv->rx_urb);
2414 at76_dbg(DBG_PROC_ENTRY, "%s: unlinked urbs", __func__);
2416 kfree(priv->bulk_out_buffer);
2418 del_timer_sync(&ledtrig_tx_timer);
2420 kfree_skb(priv->rx_skb);
2422 at76_dbg(DBG_PROC_ENTRY, "%s: before freeing priv/ieee80211_hw",
2424 ieee80211_free_hw(priv->hw);
2426 at76_dbg(DBG_PROC_ENTRY, "%s: EXIT", __func__);
2429 static int at76_probe(struct usb_interface *interface,
2430 const struct usb_device_id *id)
2433 struct at76_priv *priv;
2434 struct fwentry *fwe;
2435 struct usb_device *udev;
2437 int need_ext_fw = 0;
2438 struct mib_fw_version *fwv = NULL;
2439 int board_type = (int)id->driver_info;
2441 udev = usb_get_dev(interface_to_usbdev(interface));
2443 fwv = kmalloc(sizeof(*fwv), GFP_KERNEL);
2449 /* Load firmware into kernel memory */
2450 fwe = at76_load_firmware(udev, board_type);
2456 op_mode = at76_get_op_mode(udev);
2458 at76_dbg(DBG_DEVSTART, "opmode %d", op_mode);
2460 /* we get OPMODE_NONE with 2.4.23, SMC2662W-AR ???
2461 we get 204 with 2.4.23, Fiberline FL-WL240u (505A+RFMD2958) ??? */
2463 if (op_mode == OPMODE_HW_CONFIG_MODE) {
2464 dev_err(&interface->dev,
2465 "cannot handle a device in HW_CONFIG_MODE\n");
2470 if (op_mode != OPMODE_NORMAL_NIC_WITH_FLASH
2471 && op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) {
2472 /* download internal firmware part */
2473 dev_printk(KERN_DEBUG, &interface->dev,
2474 "downloading internal firmware\n");
2475 ret = at76_load_internal_fw(udev, fwe);
2477 dev_err(&interface->dev,
2478 "error %d downloading internal firmware\n",
2484 /* Internal firmware already inside the device. Get firmware
2485 * version to test if external firmware is loaded.
2486 * This works only for newer firmware, e.g. the Intersil 0.90.x
2487 * says "control timeout on ep0in" and subsequent
2488 * at76_get_op_mode() fail too :-( */
2490 /* if version >= 0.100.x.y or device with built-in flash we can
2491 * query the device for the fw version */
2492 if ((fwe->fw_version.major > 0 || fwe->fw_version.minor >= 100)
2493 || (op_mode == OPMODE_NORMAL_NIC_WITH_FLASH)) {
2494 ret = at76_get_mib(udev, MIB_FW_VERSION, fwv, sizeof(*fwv));
2495 if (ret < 0 || (fwv->major | fwv->minor) == 0)
2498 /* No way to check firmware version, reload to be sure */
2502 dev_printk(KERN_DEBUG, &interface->dev,
2503 "downloading external firmware\n");
2505 ret = at76_load_external_fw(udev, fwe);
2509 /* Re-check firmware version */
2510 ret = at76_get_mib(udev, MIB_FW_VERSION, fwv, sizeof(*fwv));
2512 dev_err(&interface->dev,
2513 "error %d getting firmware version\n", ret);
2518 priv = at76_alloc_new_device(udev);
2524 usb_set_intfdata(interface, priv);
2526 memcpy(&priv->fw_version, fwv, sizeof(struct mib_fw_version));
2527 priv->board_type = board_type;
2529 ret = at76_init_new_device(priv, interface);
2531 at76_delete_device(priv);
2540 static void at76_disconnect(struct usb_interface *interface)
2542 struct at76_priv *priv;
2544 priv = usb_get_intfdata(interface);
2545 usb_set_intfdata(interface, NULL);
2547 /* Disconnect after loading internal firmware */
2551 wiphy_info(priv->hw->wiphy, "disconnecting\n");
2552 at76_delete_device(priv);
2553 usb_put_dev(priv->udev);
2554 dev_info(&interface->dev, "disconnected\n");
2557 /* Structure for registering this driver with the USB subsystem */
2558 static struct usb_driver at76_driver = {
2559 .name = DRIVER_NAME,
2560 .probe = at76_probe,
2561 .disconnect = at76_disconnect,
2562 .id_table = dev_table,
2563 .disable_hub_initiated_lpm = 1,
2566 static int __init at76_mod_init(void)
2570 printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " loading\n");
2572 mutex_init(&fw_mutex);
2574 /* register this driver with the USB subsystem */
2575 result = usb_register(&at76_driver);
2577 printk(KERN_ERR DRIVER_NAME
2578 ": usb_register failed (status %d)\n", result);
2580 led_trigger_register_simple("at76_usb-tx", &ledtrig_tx);
2584 static void __exit at76_mod_exit(void)
2588 printk(KERN_INFO DRIVER_DESC " " DRIVER_VERSION " unloading\n");
2589 usb_deregister(&at76_driver);
2590 for (i = 0; i < ARRAY_SIZE(firmwares); i++)
2591 release_firmware(firmwares[i].fw);
2592 led_trigger_unregister_simple(ledtrig_tx);
2595 module_param_named(debug, at76_debug, uint, 0600);
2596 MODULE_PARM_DESC(debug, "Debugging level");
2598 module_init(at76_mod_init);
2599 module_exit(at76_mod_exit);
2601 MODULE_AUTHOR("Oliver Kurth <oku@masqmail.cx>");
2602 MODULE_AUTHOR("Joerg Albert <joerg.albert@gmx.de>");
2603 MODULE_AUTHOR("Alex <alex@foogod.com>");
2604 MODULE_AUTHOR("Nick Jones");
2605 MODULE_AUTHOR("Balint Seeber <n0_5p4m_p13453@hotmail.com>");
2606 MODULE_AUTHOR("Pavel Roskin <proski@gnu.org>");
2607 MODULE_AUTHOR("Guido Guenther <agx@sigxcpu.org>");
2608 MODULE_AUTHOR("Kalle Valo <kalle.valo@iki.fi>");
2609 MODULE_AUTHOR("Sebastian Smolorz <sesmo@gmx.net>");
2610 MODULE_DESCRIPTION(DRIVER_DESC);
2611 MODULE_LICENSE("GPL");