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wl12xx: optimise elp wakeup and sleep calls
[mirror_ubuntu-disco-kernel.git] / drivers / net / wireless / wl12xx / main.c
CommitLineData
2f01a1f5
KV		 1/*
2 * This file is part of wl12xx
3 *
4 * Copyright (C) 2008-2009 Nokia Corporation
5 *
6 * Contact: Kalle Valo <kalle.valo@nokia.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 *
22 */
23
24#include <linux/module.h>
25#include <linux/interrupt.h>
26#include <linux/firmware.h>
27#include <linux/delay.h>
28#include <linux/irq.h>
29#include <linux/spi/spi.h>
30#include <linux/crc32.h>
31#include <linux/etherdevice.h>
32#include <linux/spi/wl12xx.h>
33
34#include "wl12xx.h"
35#include "wl12xx_80211.h"
36#include "reg.h"
37#include "wl1251.h"
38#include "spi.h"
39#include "event.h"
9f2ad4fb 40#include "wl1251_tx.h"
2f01a1f5
KV		 41#include "rx.h"
42#include "ps.h"
43#include "init.h"
44#include "debugfs.h"
45
46static void wl12xx_disable_interrupts(struct wl12xx *wl)
47{
48 disable_irq(wl->irq);
49}
50
51static void wl12xx_power_off(struct wl12xx *wl)
52{
53 wl->set_power(false);
54}
55
56static void wl12xx_power_on(struct wl12xx *wl)
57{
58 wl->set_power(true);
59}
60
61static irqreturn_t wl12xx_irq(int irq, void *cookie)
62{
63 struct wl12xx *wl;
64
65 wl12xx_debug(DEBUG_IRQ, "IRQ");
66
67 wl = cookie;
68
69 schedule_work(&wl->irq_work);
70
71 return IRQ_HANDLED;
72}
73
74static int wl12xx_fetch_firmware(struct wl12xx *wl)
75{
76 const struct firmware *fw;
77 int ret;
78
79 ret = request_firmware(&fw, wl->chip.fw_filename, &wl->spi->dev);
80
81 if (ret < 0) {
82 wl12xx_error("could not get firmware: %d", ret);
83 return ret;
84 }
85
86 if (fw->size % 4) {
8bce6121 87 wl12xx_error("firmware size is not multiple of 32 bits: %zu",
2f01a1f5
KV		 88 fw->size);
89 ret = -EILSEQ;
90 goto out;
91 }
92
93 wl->fw_len = fw->size;
94 wl->fw = kmalloc(wl->fw_len, GFP_KERNEL);
95
96 if (!wl->fw) {
97 wl12xx_error("could not allocate memory for the firmware");
98 ret = -ENOMEM;
99 goto out;
100 }
101
102 memcpy(wl->fw, fw->data, wl->fw_len);
103
104 ret = 0;
105
106out:
107 release_firmware(fw);
108
109 return ret;
110}
111
112static int wl12xx_fetch_nvs(struct wl12xx *wl)
113{
114 const struct firmware *fw;
115 int ret;
116
117 ret = request_firmware(&fw, wl->chip.nvs_filename, &wl->spi->dev);
118
119 if (ret < 0) {
120 wl12xx_error("could not get nvs file: %d", ret);
121 return ret;
122 }
123
124 if (fw->size % 4) {
8bce6121 125 wl12xx_error("nvs size is not multiple of 32 bits: %zu",
2f01a1f5
KV		 126 fw->size);
127 ret = -EILSEQ;
128 goto out;
129 }
130
131 wl->nvs_len = fw->size;
132 wl->nvs = kmalloc(wl->nvs_len, GFP_KERNEL);
133
134 if (!wl->nvs) {
135 wl12xx_error("could not allocate memory for the nvs file");
136 ret = -ENOMEM;
137 goto out;
138 }
139
140 memcpy(wl->nvs, fw->data, wl->nvs_len);
141
142 ret = 0;
143
144out:
145 release_firmware(fw);
146
147 return ret;
148}
149
150static void wl12xx_fw_wakeup(struct wl12xx *wl)
151{
152 u32 elp_reg;
153
154 elp_reg = ELPCTRL_WAKE_UP;
155 wl12xx_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg);
156 elp_reg = wl12xx_read32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR);
157
158 if (!(elp_reg & ELPCTRL_WLAN_READY)) {
159 wl12xx_warning("WLAN not ready");
2f01a1f5
KV		 160 }
161}
162
163static int wl12xx_chip_wakeup(struct wl12xx *wl)
164{
165 int ret = 0;
166
167 wl12xx_power_on(wl);
168 msleep(wl->chip.power_on_sleep);
169 wl12xx_spi_reset(wl);
170 wl12xx_spi_init(wl);
171
172 /* We don't need a real memory partition here, because we only want
173 * to use the registers at this point. */
174 wl12xx_set_partition(wl,
175 0x00000000,
176 0x00000000,
177 REGISTERS_BASE,
178 REGISTERS_DOWN_SIZE);
179
180 /* ELP module wake up */
181 wl12xx_fw_wakeup(wl);
182
183 /* whal_FwCtrl_BootSm() */
184
185 /* 0. read chip id from CHIP_ID */
186 wl->chip.id = wl12xx_reg_read32(wl, CHIP_ID_B);
187
188 /* 1. check if chip id is valid */
189
190 switch (wl->chip.id) {
191 case CHIP_ID_1251_PG12:
192 wl12xx_debug(DEBUG_BOOT, "chip id 0x%x (1251 PG12)",
193 wl->chip.id);
194
195 wl1251_setup(wl);
196
197 break;
198 case CHIP_ID_1271_PG10:
27797d68
LC		 199 wl12xx_warning("chip id 0x%x (1271 PG10) support is obsolete",
200 wl->chip.id);
201 break;
202 case CHIP_ID_1271_PG20:
203 wl12xx_debug(DEBUG_BOOT, "chip id 0x%x (1271 PG20)",
204 wl->chip.id);
205 break;
2f01a1f5
KV		 206 case CHIP_ID_1251_PG10:
207 case CHIP_ID_1251_PG11:
208 default:
209 wl12xx_error("unsupported chip id: 0x%x", wl->chip.id);
210 ret = -ENODEV;
211 goto out;
212 }
213
214 if (wl->fw == NULL) {
215 ret = wl12xx_fetch_firmware(wl);
216 if (ret < 0)
217 goto out;
218 }
219
220 /* No NVS from netlink, try to get it from the filesystem */
221 if (wl->nvs == NULL) {
222 ret = wl12xx_fetch_nvs(wl);
223 if (ret < 0)
224 goto out;
225 }
226
227out:
228 return ret;
229}
230
231static void wl12xx_filter_work(struct work_struct *work)
232{
233 struct wl12xx *wl =
234 container_of(work, struct wl12xx, filter_work);
235 int ret;
236
237 mutex_lock(&wl->mutex);
238
239 if (wl->state == WL12XX_STATE_OFF)
240 goto out;
241
01d9cfbd
KV		 242 wl12xx_ps_elp_wakeup(wl);
243
2f01a1f5
KV		 244 ret = wl12xx_cmd_join(wl, wl->bss_type, 1, 100, 0);
245 if (ret < 0)
246 goto out;
247
248out:
01d9cfbd 249 wl12xx_ps_elp_sleep(wl);
2f01a1f5
KV		 250 mutex_unlock(&wl->mutex);
251}
252
253int wl12xx_plt_start(struct wl12xx *wl)
254{
255 int ret;
256
257 wl12xx_notice("power up");
258
259 if (wl->state != WL12XX_STATE_OFF) {
260 wl12xx_error("cannot go into PLT state because not "
261 "in off state: %d", wl->state);
262 return -EBUSY;
263 }
264
265 wl->state = WL12XX_STATE_PLT;
266
267 ret = wl12xx_chip_wakeup(wl);
268 if (ret < 0)
269 return ret;
270
271 ret = wl->chip.op_boot(wl);
272 if (ret < 0)
273 return ret;
274
275 wl12xx_notice("firmware booted in PLT mode (%s)", wl->chip.fw_ver);
276
277 ret = wl->chip.op_plt_init(wl);
278 if (ret < 0)
279 return ret;
280
281 return 0;
282}
283
284int wl12xx_plt_stop(struct wl12xx *wl)
285{
286 wl12xx_notice("power down");
287
288 if (wl->state != WL12XX_STATE_PLT) {
289 wl12xx_error("cannot power down because not in PLT "
290 "state: %d", wl->state);
291 return -EBUSY;
292 }
293
294 wl12xx_disable_interrupts(wl);
295 wl12xx_power_off(wl);
296
297 wl->state = WL12XX_STATE_OFF;
298
299 return 0;
300}
301
302
303static int wl12xx_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
304{
305 struct wl12xx *wl = hw->priv;
306
307 skb_queue_tail(&wl->tx_queue, skb);
308
9f2ad4fb
JO		 309 /*
310 * The chip specific setup must run before the first TX packet -
311 * before that, the tx_work will not be initialized!
312 */
313
2f01a1f5
KV		 314 schedule_work(&wl->tx_work);
315
316 /*
317 * The workqueue is slow to process the tx_queue and we need stop
318 * the queue here, otherwise the queue will get too long.
319 */
320 if (skb_queue_len(&wl->tx_queue) >= WL12XX_TX_QUEUE_MAX_LENGTH) {
321 ieee80211_stop_queues(wl->hw);
322
323 /*
324 * FIXME: this is racy, the variable is not properly
325 * protected. Maybe fix this by removing the stupid
326 * variable altogether and checking the real queue state?
327 */
328 wl->tx_queue_stopped = true;
329 }
330
331 return NETDEV_TX_OK;
332}
333
334static int wl12xx_op_start(struct ieee80211_hw *hw)
335{
336 struct wl12xx *wl = hw->priv;
337 int ret = 0;
338
339 wl12xx_debug(DEBUG_MAC80211, "mac80211 start");
340
341 mutex_lock(&wl->mutex);
342
343 if (wl->state != WL12XX_STATE_OFF) {
344 wl12xx_error("cannot start because not in off state: %d",
345 wl->state);
346 ret = -EBUSY;
347 goto out;
348 }
349
350 ret = wl12xx_chip_wakeup(wl);
351 if (ret < 0)
352 return ret;
353
354 ret = wl->chip.op_boot(wl);
355 if (ret < 0)
356 goto out;
357
358 ret = wl->chip.op_hw_init(wl);
359 if (ret < 0)
360 goto out;
361
362 ret = wl12xx_acx_station_id(wl);
363 if (ret < 0)
364 goto out;
365
366 wl->state = WL12XX_STATE_ON;
367
368 wl12xx_info("firmware booted (%s)", wl->chip.fw_ver);
369
370out:
371 if (ret < 0)
372 wl12xx_power_off(wl);
373
374 mutex_unlock(&wl->mutex);
375
376 return ret;
377}
378
379static void wl12xx_op_stop(struct ieee80211_hw *hw)
380{
381 struct wl12xx *wl = hw->priv;
382
383 wl12xx_info("down");
384
385 wl12xx_debug(DEBUG_MAC80211, "mac80211 stop");
386
387 mutex_lock(&wl->mutex);
388
389 WARN_ON(wl->state != WL12XX_STATE_ON);
390
391 if (wl->scanning) {
392 mutex_unlock(&wl->mutex);
393 ieee80211_scan_completed(wl->hw, true);
394 mutex_lock(&wl->mutex);
395 wl->scanning = false;
396 }
397
398 wl->state = WL12XX_STATE_OFF;
399
400 wl12xx_disable_interrupts(wl);
401
402 mutex_unlock(&wl->mutex);
403
404 cancel_work_sync(&wl->irq_work);
405 cancel_work_sync(&wl->tx_work);
406 cancel_work_sync(&wl->filter_work);
407
408 mutex_lock(&wl->mutex);
409
410 /* let's notify MAC80211 about the remaining pending TX frames */
9f2ad4fb 411 wl->chip.op_tx_flush(wl);
2f01a1f5
KV		 412 wl12xx_power_off(wl);
413
414 memset(wl->bssid, 0, ETH_ALEN);
415 wl->listen_int = 1;
416 wl->bss_type = MAX_BSS_TYPE;
417
418 wl->data_in_count = 0;
419 wl->rx_counter = 0;
420 wl->rx_handled = 0;
421 wl->rx_current_buffer = 0;
422 wl->rx_last_id = 0;
423 wl->next_tx_complete = 0;
424 wl->elp = false;
425 wl->psm = 0;
426 wl->tx_queue_stopped = false;
427 wl->power_level = WL12XX_DEFAULT_POWER_LEVEL;
428
429 wl12xx_debugfs_reset(wl);
430
431 mutex_unlock(&wl->mutex);
432}
433
434static int wl12xx_op_add_interface(struct ieee80211_hw *hw,
435 struct ieee80211_if_init_conf *conf)
436{
437 struct wl12xx *wl = hw->priv;
438 DECLARE_MAC_BUF(mac);
439 int ret = 0;
440
441 wl12xx_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %s",
442 conf->type, print_mac(mac, conf->mac_addr));
443
444 mutex_lock(&wl->mutex);
445
446 switch (conf->type) {
447 case NL80211_IFTYPE_STATION:
448 wl->bss_type = BSS_TYPE_STA_BSS;
449 break;
450 case NL80211_IFTYPE_ADHOC:
451 wl->bss_type = BSS_TYPE_IBSS;
452 break;
453 default:
454 ret = -EOPNOTSUPP;
455 goto out;
456 }
457
458 if (memcmp(wl->mac_addr, conf->mac_addr, ETH_ALEN)) {
459 memcpy(wl->mac_addr, conf->mac_addr, ETH_ALEN);
460 SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr);
461 ret = wl12xx_acx_station_id(wl);
462 if (ret < 0)
463 goto out;
464 }
465
466out:
467 mutex_unlock(&wl->mutex);
468 return ret;
469}
470
471static void wl12xx_op_remove_interface(struct ieee80211_hw *hw,
472 struct ieee80211_if_init_conf *conf)
473{
474 wl12xx_debug(DEBUG_MAC80211, "mac80211 remove interface");
475}
476
477static int wl12xx_build_null_data(struct wl12xx *wl)
478{
479 struct wl12xx_null_data_template template;
480
481 if (!is_zero_ether_addr(wl->bssid)) {
482 memcpy(template.header.da, wl->bssid, ETH_ALEN);
483 memcpy(template.header.bssid, wl->bssid, ETH_ALEN);
484 } else {
485 memset(template.header.da, 0xff, ETH_ALEN);
486 memset(template.header.bssid, 0xff, ETH_ALEN);
487 }
488
489 memcpy(template.header.sa, wl->mac_addr, ETH_ALEN);
490 template.header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_DATA |
491 IEEE80211_STYPE_NULLFUNC);
492
493 return wl12xx_cmd_template_set(wl, CMD_NULL_DATA, &template,
494 sizeof(template));
495
496}
497
498static int wl12xx_build_ps_poll(struct wl12xx *wl, u16 aid)
499{
500 struct wl12xx_ps_poll_template template;
501
502 memcpy(template.bssid, wl->bssid, ETH_ALEN);
503 memcpy(template.ta, wl->mac_addr, ETH_ALEN);
504 template.aid = aid;
505 template.fc = cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL);
506
507 return wl12xx_cmd_template_set(wl, CMD_PS_POLL, &template,
508 sizeof(template));
509
510}
511
512static int wl12xx_op_config(struct ieee80211_hw *hw, u32 changed)
513{
514 struct wl12xx *wl = hw->priv;
515 struct ieee80211_conf *conf = &hw->conf;
516 int channel, ret = 0;
517
518 channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
519
520 wl12xx_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d",
521 channel,
522 conf->flags & IEEE80211_CONF_PS ? "on" : "off",
523 conf->power_level);
524
525 mutex_lock(&wl->mutex);
526
01d9cfbd
KV		 527 wl12xx_ps_elp_wakeup(wl);
528
2f01a1f5
KV		 529 if (channel != wl->channel) {
530 /* FIXME: use beacon interval provided by mac80211 */
531 ret = wl12xx_cmd_join(wl, wl->bss_type, 1, 100, 0);
532 if (ret < 0)
533 goto out;
534
535 wl->channel = channel;
536 }
537
538 ret = wl12xx_build_null_data(wl);
539 if (ret < 0)
540 goto out;
541
542 if (conf->flags & IEEE80211_CONF_PS && !wl->psm_requested) {
543 wl12xx_info("psm enabled");
544
545 wl->psm_requested = true;
546
547 /*
548 * We enter PSM only if we're already associated.
549 * If we're not, we'll enter it when joining an SSID,
550 * through the bss_info_changed() hook.
551 */
552 ret = wl12xx_ps_set_mode(wl, STATION_POWER_SAVE_MODE);
553 } else if (!(conf->flags & IEEE80211_CONF_PS) &&
554 wl->psm_requested) {
555 wl12xx_info("psm disabled");
556
557 wl->psm_requested = false;
558
559 if (wl->psm)
560 ret = wl12xx_ps_set_mode(wl, STATION_ACTIVE_MODE);
561 }
562
563 if (conf->power_level != wl->power_level) {
564 ret = wl12xx_acx_tx_power(wl, conf->power_level);
565 if (ret < 0)
566 goto out;
567
568 wl->power_level = conf->power_level;
569 }
570
571out:
01d9cfbd 572 wl12xx_ps_elp_sleep(wl);
2f01a1f5
KV		 573 mutex_unlock(&wl->mutex);
574 return ret;
575}
576
577#define WL12XX_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
578 FIF_ALLMULTI | \
579 FIF_FCSFAIL | \
580 FIF_BCN_PRBRESP_PROMISC | \
581 FIF_CONTROL | \
582 FIF_OTHER_BSS)
583
584static void wl12xx_op_configure_filter(struct ieee80211_hw *hw,
585 unsigned int changed,
586 unsigned int *total,
587 int mc_count,
588 struct dev_addr_list *mc_list)
589{
590 struct wl12xx *wl = hw->priv;
591
592 wl12xx_debug(DEBUG_MAC80211, "mac80211 configure filter");
593
594 *total &= WL12XX_SUPPORTED_FILTERS;
595 changed &= WL12XX_SUPPORTED_FILTERS;
596
597 if (changed == 0)
598 /* no filters which we support changed */
599 return;
600
601 /* FIXME: wl->rx_config and wl->rx_filter are not protected */
602
603 wl->rx_config = WL12XX_DEFAULT_RX_CONFIG;
604 wl->rx_filter = WL12XX_DEFAULT_RX_FILTER;
605
606 if (*total & FIF_PROMISC_IN_BSS) {
607 wl->rx_config |= CFG_BSSID_FILTER_EN;
608 wl->rx_config |= CFG_RX_ALL_GOOD;
609 }
610 if (*total & FIF_ALLMULTI)
611 /*
612 * CFG_MC_FILTER_EN in rx_config needs to be 0 to receive
613 * all multicast frames
614 */
615 wl->rx_config &= ~CFG_MC_FILTER_EN;
616 if (*total & FIF_FCSFAIL)
617 wl->rx_filter |= CFG_RX_FCS_ERROR;
618 if (*total & FIF_BCN_PRBRESP_PROMISC) {
619 wl->rx_config &= ~CFG_BSSID_FILTER_EN;
620 wl->rx_config &= ~CFG_SSID_FILTER_EN;
621 }
622 if (*total & FIF_CONTROL)
623 wl->rx_filter |= CFG_RX_CTL_EN;
624 if (*total & FIF_OTHER_BSS)
625 wl->rx_filter &= ~CFG_BSSID_FILTER_EN;
626
627 /*
628 * FIXME: workqueues need to be properly cancelled on stop(), for
629 * now let's just disable changing the filter settings. They will
630 * be updated any on config().
631 */
632 /* schedule_work(&wl->filter_work); */
633}
634
635/* HW encryption */
ff25839b
KV		 636static int wl12xx_set_key_type(struct wl12xx *wl,
637 struct wl12xx_cmd_set_keys *key,
2f01a1f5
KV		 638 enum set_key_cmd cmd,
639 struct ieee80211_key_conf *mac80211_key,
640 const u8 *addr)
641{
642 switch (mac80211_key->alg) {
643 case ALG_WEP:
644 if (is_broadcast_ether_addr(addr))
645 key->key_type = KEY_WEP_DEFAULT;
646 else
647 key->key_type = KEY_WEP_ADDR;
648
649 mac80211_key->hw_key_idx = mac80211_key->keyidx;
650 break;
651 case ALG_TKIP:
652 if (is_broadcast_ether_addr(addr))
653 key->key_type = KEY_TKIP_MIC_GROUP;
654 else
655 key->key_type = KEY_TKIP_MIC_PAIRWISE;
656
657 mac80211_key->hw_key_idx = mac80211_key->keyidx;
658 break;
659 case ALG_CCMP:
660 if (is_broadcast_ether_addr(addr))
661 key->key_type = KEY_AES_GROUP;
662 else
663 key->key_type = KEY_AES_PAIRWISE;
664 mac80211_key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
665 break;
666 default:
667 wl12xx_error("Unknown key algo 0x%x", mac80211_key->alg);
668 return -EOPNOTSUPP;
669 }
670
671 return 0;
672}
673
674static int wl12xx_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
675 struct ieee80211_vif *vif,
676 struct ieee80211_sta *sta,
677 struct ieee80211_key_conf *key)
678{
679 struct wl12xx *wl = hw->priv;
ff25839b 680 struct wl12xx_cmd_set_keys *wl_cmd;
2f01a1f5
KV		 681 const u8 *addr;
682 int ret;
683
684 static const u8 bcast_addr[ETH_ALEN] =
685 { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
686
687 wl12xx_debug(DEBUG_MAC80211, "mac80211 set key");
688
ff25839b
KV		 689 wl_cmd = kzalloc(sizeof(*wl_cmd), GFP_KERNEL);
690 if (!wl_cmd) {
691 ret = -ENOMEM;
692 goto out;
693 }
2f01a1f5
KV		 694
695 addr = sta ? sta->addr : bcast_addr;
696
697 wl12xx_debug(DEBUG_CRYPT, "CMD: 0x%x", cmd);
698 wl12xx_dump(DEBUG_CRYPT, "ADDR: ", addr, ETH_ALEN);
699 wl12xx_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x",
700 key->alg, key->keyidx, key->keylen, key->flags);
701 wl12xx_dump(DEBUG_CRYPT, "KEY: ", key->key, key->keylen);
702
ff25839b
KV		 703 if (is_zero_ether_addr(addr)) {
704 /* We dont support TX only encryption */
705 ret = -EOPNOTSUPP;
706 goto out;
707 }
708
2f01a1f5
KV		 709 mutex_lock(&wl->mutex);
710
01d9cfbd
KV		 711 wl12xx_ps_elp_wakeup(wl);
712
2f01a1f5
KV		 713 switch (cmd) {
714 case SET_KEY:
ff25839b 715 wl_cmd->key_action = KEY_ADD_OR_REPLACE;
2f01a1f5
KV		 716 break;
717 case DISABLE_KEY:
ff25839b 718 wl_cmd->key_action = KEY_REMOVE;
2f01a1f5
KV		 719 break;
720 default:
721 wl12xx_error("Unsupported key cmd 0x%x", cmd);
722 break;
723 }
724
ff25839b 725 ret = wl12xx_set_key_type(wl, wl_cmd, cmd, key, addr);
2f01a1f5
KV		 726 if (ret < 0) {
727 wl12xx_error("Set KEY type failed");
ff25839b 728 goto out_unlock;
2f01a1f5
KV		 729 }
730
ff25839b
KV		 731 if (wl_cmd->key_type != KEY_WEP_DEFAULT)
732 memcpy(wl_cmd->addr, addr, ETH_ALEN);
2f01a1f5 733
ff25839b
KV		 734 if ((wl_cmd->key_type == KEY_TKIP_MIC_GROUP) ||
735 (wl_cmd->key_type == KEY_TKIP_MIC_PAIRWISE)) {
2f01a1f5
KV		 736 /*
737 * We get the key in the following form:
738 * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes)
739 * but the target is expecting:
740 * TKIP - RX MIC - TX MIC
741 */
ff25839b
KV		 742 memcpy(wl_cmd->key, key->key, 16);
743 memcpy(wl_cmd->key + 16, key->key + 24, 8);
744 memcpy(wl_cmd->key + 24, key->key + 16, 8);
2f01a1f5
KV		 745
746 } else {
ff25839b 747 memcpy(wl_cmd->key, key->key, key->keylen);
2f01a1f5 748 }
ff25839b 749 wl_cmd->key_size = key->keylen;
2f01a1f5 750
ff25839b
KV		 751 wl_cmd->id = key->keyidx;
752 wl_cmd->ssid_profile = 0;
2f01a1f5 753
ff25839b 754 wl12xx_dump(DEBUG_CRYPT, "TARGET KEY: ", wl_cmd, sizeof(*wl_cmd));
2f01a1f5 755
ff25839b
KV		 756 ret = wl12xx_cmd_send(wl, CMD_SET_KEYS, wl_cmd, sizeof(*wl_cmd));
757 if (ret < 0) {
758 wl12xx_warning("could not set keys");
759 goto out_unlock;
2f01a1f5
KV		 760 }
761
ff25839b 762out_unlock:
01d9cfbd 763 wl12xx_ps_elp_sleep(wl);
2f01a1f5 764 mutex_unlock(&wl->mutex);
ff25839b
KV		 765
766out:
767 kfree(wl_cmd);
768
2f01a1f5
KV		 769 return ret;
770}
771
772static int wl12xx_build_basic_rates(char *rates)
773{
774 u8 index = 0;
775
776 rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
777 rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
778 rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB;
779 rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB;
780
781 return index;
782}
783
784static int wl12xx_build_extended_rates(char *rates)
785{
786 u8 index = 0;
787
788 rates[index++] = IEEE80211_OFDM_RATE_6MB;
789 rates[index++] = IEEE80211_OFDM_RATE_9MB;
790 rates[index++] = IEEE80211_OFDM_RATE_12MB;
791 rates[index++] = IEEE80211_OFDM_RATE_18MB;
792 rates[index++] = IEEE80211_OFDM_RATE_24MB;
793 rates[index++] = IEEE80211_OFDM_RATE_36MB;
794 rates[index++] = IEEE80211_OFDM_RATE_48MB;
795 rates[index++] = IEEE80211_OFDM_RATE_54MB;
796
797 return index;
798}
799
800
801static int wl12xx_build_probe_req(struct wl12xx *wl, u8 *ssid, size_t ssid_len)
802{
803 struct wl12xx_probe_req_template template;
804 struct wl12xx_ie_rates *rates;
805 char *ptr;
806 u16 size;
807
808 ptr = (char *)&template;
809 size = sizeof(struct ieee80211_header);
810
811 memset(template.header.da, 0xff, ETH_ALEN);
812 memset(template.header.bssid, 0xff, ETH_ALEN);
813 memcpy(template.header.sa, wl->mac_addr, ETH_ALEN);
814 template.header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
815
816 /* IEs */
817 /* SSID */
818 template.ssid.header.id = WLAN_EID_SSID;
819 template.ssid.header.len = ssid_len;
820 if (ssid_len && ssid)
821 memcpy(template.ssid.ssid, ssid, ssid_len);
822 size += sizeof(struct wl12xx_ie_header) + ssid_len;
823 ptr += size;
824
825 /* Basic Rates */
826 rates = (struct wl12xx_ie_rates *)ptr;
827 rates->header.id = WLAN_EID_SUPP_RATES;
828 rates->header.len = wl12xx_build_basic_rates(rates->rates);
829 size += sizeof(struct wl12xx_ie_header) + rates->header.len;
830 ptr += sizeof(struct wl12xx_ie_header) + rates->header.len;
831
832 /* Extended rates */
833 rates = (struct wl12xx_ie_rates *)ptr;
834 rates->header.id = WLAN_EID_EXT_SUPP_RATES;
835 rates->header.len = wl12xx_build_extended_rates(rates->rates);
836 size += sizeof(struct wl12xx_ie_header) + rates->header.len;
837
838 wl12xx_dump(DEBUG_SCAN, "PROBE REQ: ", &template, size);
839
840 return wl12xx_cmd_template_set(wl, CMD_PROBE_REQ, &template,
841 size);
842}
843
844static int wl12xx_hw_scan(struct wl12xx *wl, u8 *ssid, size_t len,
845 u8 active_scan, u8 high_prio, u8 num_channels,
846 u8 probe_requests)
847{
ff25839b
KV		 848 struct wl12xx_cmd_trigger_scan_to *trigger = NULL;
849 struct cmd_scan *params = NULL;
2f01a1f5 850 int i, ret;
2f01a1f5 851 u16 scan_options = 0;
2f01a1f5
KV		 852
853 if (wl->scanning)
854 return -EINVAL;
855
856 params = kzalloc(sizeof(*params), GFP_KERNEL);
857 if (!params)
858 return -ENOMEM;
859
860 params->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD);
861 params->params.rx_filter_options =
862 cpu_to_le32(CFG_RX_PRSP_EN | CFG_RX_MGMT_EN | CFG_RX_BCN_EN);
863
864 /* High priority scan */
865 if (!active_scan)
866 scan_options |= SCAN_PASSIVE;
867 if (high_prio)
868 scan_options |= SCAN_PRIORITY_HIGH;
869 params->params.scan_options = scan_options;
870
871 params->params.num_channels = num_channels;
872 params->params.num_probe_requests = probe_requests;
873 params->params.tx_rate = cpu_to_le16(1 << 1); /* 2 Mbps */
874 params->params.tid_trigger = 0;
875
876 for (i = 0; i < num_channels; i++) {
877 params->channels[i].min_duration = cpu_to_le32(30000);
878 params->channels[i].max_duration = cpu_to_le32(60000);
879 memset(&params->channels[i].bssid_lsb, 0xff, 4);
880 memset(&params->channels[i].bssid_msb, 0xff, 2);
881 params->channels[i].early_termination = 0;
882 params->channels[i].tx_power_att = 0;
883 params->channels[i].channel = i + 1;
884 memset(params->channels[i].pad, 0, 3);
885 }
886
887 for (i = num_channels; i < SCAN_MAX_NUM_OF_CHANNELS; i++)
888 memset(&params->channels[i], 0,
889 sizeof(struct basic_scan_channel_parameters));
890
891 if (len && ssid) {
892 params->params.ssid_len = len;
893 memcpy(params->params.ssid, ssid, len);
894 } else {
895 params->params.ssid_len = 0;
896 memset(params->params.ssid, 0, 32);
897 }
898
899 ret = wl12xx_build_probe_req(wl, ssid, len);
900 if (ret < 0) {
901 wl12xx_error("PROBE request template failed");
902 goto out;
903 }
904
ff25839b
KV		 905 trigger = kzalloc(sizeof(*trigger), GFP_KERNEL);
906 if (!trigger)
907 goto out;
908
909 trigger->timeout = 0;
910
911 ret = wl12xx_cmd_send(wl, CMD_TRIGGER_SCAN_TO, trigger,
912 sizeof(*trigger));
2f01a1f5 913 if (ret < 0) {
ff25839b 914 wl12xx_error("trigger scan to failed for hw scan");
2f01a1f5
KV		 915 goto out;
916 }
917
918 wl12xx_dump(DEBUG_SCAN, "SCAN: ", params, sizeof(*params));
919
920 wl->scanning = true;
921
922 ret = wl12xx_cmd_send(wl, CMD_SCAN, params, sizeof(*params));
923 if (ret < 0)
924 wl12xx_error("SCAN failed");
925
926 wl12xx_spi_mem_read(wl, wl->cmd_box_addr, params, sizeof(*params));
927
ff25839b 928 if (params->header.status != CMD_STATUS_SUCCESS) {
2f01a1f5 929 wl12xx_error("TEST command answer error: %d",
ff25839b 930 params->header.status);
2f01a1f5
KV		 931 wl->scanning = false;
932 ret = -EIO;
933 goto out;
934 }
935
936out:
937 kfree(params);
938 return ret;
939
940}
941
942static int wl12xx_op_hw_scan(struct ieee80211_hw *hw,
943 struct cfg80211_scan_request *req)
944{
945 struct wl12xx *wl = hw->priv;
946 int ret;
947 u8 *ssid = NULL;
948 size_t ssid_len = 0;
949
950 wl12xx_debug(DEBUG_MAC80211, "mac80211 hw scan");
951
952 if (req->n_ssids) {
953 ssid = req->ssids[0].ssid;
954 ssid_len = req->ssids[0].ssid_len;
955 }
956
957 mutex_lock(&wl->mutex);
01d9cfbd
KV		 958 wl12xx_ps_elp_wakeup(wl);
959
2f01a1f5 960 ret = wl12xx_hw_scan(hw->priv, ssid, ssid_len, 1, 0, 13, 3);
01d9cfbd
KV		 961
962 wl12xx_ps_elp_sleep(wl);
2f01a1f5
KV		 963 mutex_unlock(&wl->mutex);
964
965 return ret;
966}
967
968static int wl12xx_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
969{
970 struct wl12xx *wl = hw->priv;
971 int ret;
972
cee4fd27
KV		 973 mutex_lock(&wl->mutex);
974
01d9cfbd
KV		 975 wl12xx_ps_elp_wakeup(wl);
976
2f01a1f5
KV		 977 ret = wl12xx_acx_rts_threshold(wl, (u16) value);
978
979 if (ret < 0)
980 wl12xx_warning("wl12xx_op_set_rts_threshold failed: %d", ret);
981
01d9cfbd
KV		 982 wl12xx_ps_elp_sleep(wl);
983
cee4fd27
KV		 984 mutex_unlock(&wl->mutex);
985
2f01a1f5
KV		 986 return ret;
987}
988
989static void wl12xx_op_bss_info_changed(struct ieee80211_hw *hw,
990 struct ieee80211_vif *vif,
991 struct ieee80211_bss_conf *bss_conf,
992 u32 changed)
993{
ff25839b 994 enum wl12xx_cmd_ps_mode mode;
2f01a1f5
KV		 995 struct wl12xx *wl = hw->priv;
996 struct sk_buff *beacon;
997 int ret;
998
999 wl12xx_debug(DEBUG_MAC80211, "mac80211 bss info changed");
1000
1001 mutex_lock(&wl->mutex);
1002
01d9cfbd
KV		 1003 wl12xx_ps_elp_wakeup(wl);
1004
2f01a1f5
KV		 1005 if (changed & BSS_CHANGED_ASSOC) {
1006 if (bss_conf->assoc) {
1007 wl->aid = bss_conf->aid;
1008
1009 ret = wl12xx_build_ps_poll(wl, wl->aid);
1010 if (ret < 0)
1011 goto out;
1012
1013 ret = wl12xx_acx_aid(wl, wl->aid);
1014 if (ret < 0)
1015 goto out;
1016
1017 /* If we want to go in PSM but we're not there yet */
1018 if (wl->psm_requested && !wl->psm) {
1019 mode = STATION_POWER_SAVE_MODE;
1020 ret = wl12xx_ps_set_mode(wl, mode);
1021 if (ret < 0)
1022 goto out;
1023 }
1024 }
1025 }
1026 if (changed & BSS_CHANGED_ERP_SLOT) {
1027 if (bss_conf->use_short_slot)
1028 ret = wl12xx_acx_slot(wl, SLOT_TIME_SHORT);
1029 else
1030 ret = wl12xx_acx_slot(wl, SLOT_TIME_LONG);
1031 if (ret < 0) {
1032 wl12xx_warning("Set slot time failed %d", ret);
1033 goto out;
1034 }
1035 }
1036
1037 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1038 if (bss_conf->use_short_preamble)
1039 wl12xx_acx_set_preamble(wl, ACX_PREAMBLE_SHORT);
1040 else
1041 wl12xx_acx_set_preamble(wl, ACX_PREAMBLE_LONG);
1042 }
1043
1044 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1045 if (bss_conf->use_cts_prot)
1046 ret = wl12xx_acx_cts_protect(wl, CTSPROTECT_ENABLE);
1047 else
1048 ret = wl12xx_acx_cts_protect(wl, CTSPROTECT_DISABLE);
1049 if (ret < 0) {
1050 wl12xx_warning("Set ctsprotect failed %d", ret);
1051 goto out;
1052 }
1053 }
1054
1055 if (changed & BSS_CHANGED_BSSID) {
1056 memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN);
1057
1058 ret = wl12xx_build_null_data(wl);
1059 if (ret < 0)
1060 goto out;
1061
1062 if (wl->bss_type != BSS_TYPE_IBSS) {
1063 ret = wl12xx_cmd_join(wl, wl->bss_type, 5, 100, 1);
1064 if (ret < 0)
1065 goto out;
1066 }
1067 }
1068
1069 if (changed & BSS_CHANGED_BEACON) {
1070 beacon = ieee80211_beacon_get(hw, vif);
1071 ret = wl12xx_cmd_template_set(wl, CMD_BEACON, beacon->data,
1072 beacon->len);
1073
1074 if (ret < 0) {
1075 dev_kfree_skb(beacon);
1076 goto out;
1077 }
1078
1079 ret = wl12xx_cmd_template_set(wl, CMD_PROBE_RESP, beacon->data,
1080 beacon->len);
1081
1082 dev_kfree_skb(beacon);
1083
1084 if (ret < 0)
1085 goto out;
1086
1087 ret = wl12xx_cmd_join(wl, wl->bss_type, 1, 100, 0);
1088
1089 if (ret < 0)
1090 goto out;
1091 }
1092
1093out:
01d9cfbd 1094 wl12xx_ps_elp_sleep(wl);
2f01a1f5
KV		 1095 mutex_unlock(&wl->mutex);
1096}
1097
1098
1099/* can't be const, mac80211 writes to this */
1100static struct ieee80211_rate wl12xx_rates[] = {
1101 { .bitrate = 10,
1102 .hw_value = 0x1,
1103 .hw_value_short = 0x1, },
1104 { .bitrate = 20,
1105 .hw_value = 0x2,
1106 .hw_value_short = 0x2,
1107 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
1108 { .bitrate = 55,
1109 .hw_value = 0x4,
1110 .hw_value_short = 0x4,
1111 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
1112 { .bitrate = 110,
1113 .hw_value = 0x20,
1114 .hw_value_short = 0x20,
1115 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
1116 { .bitrate = 60,
1117 .hw_value = 0x8,
1118 .hw_value_short = 0x8, },
1119 { .bitrate = 90,
1120 .hw_value = 0x10,
1121 .hw_value_short = 0x10, },
1122 { .bitrate = 120,
1123 .hw_value = 0x40,
1124 .hw_value_short = 0x40, },
1125 { .bitrate = 180,
1126 .hw_value = 0x80,
1127 .hw_value_short = 0x80, },
1128 { .bitrate = 240,
1129 .hw_value = 0x200,
1130 .hw_value_short = 0x200, },
1131 { .bitrate = 360,
1132 .hw_value = 0x400,
1133 .hw_value_short = 0x400, },
1134 { .bitrate = 480,
1135 .hw_value = 0x800,
1136 .hw_value_short = 0x800, },
1137 { .bitrate = 540,
1138 .hw_value = 0x1000,
1139 .hw_value_short = 0x1000, },
1140};
1141
1142/* can't be const, mac80211 writes to this */
1143static struct ieee80211_channel wl12xx_channels[] = {
1144 { .hw_value = 1, .center_freq = 2412},
1145 { .hw_value = 2, .center_freq = 2417},
1146 { .hw_value = 3, .center_freq = 2422},
1147 { .hw_value = 4, .center_freq = 2427},
1148 { .hw_value = 5, .center_freq = 2432},
1149 { .hw_value = 6, .center_freq = 2437},
1150 { .hw_value = 7, .center_freq = 2442},
1151 { .hw_value = 8, .center_freq = 2447},
1152 { .hw_value = 9, .center_freq = 2452},
1153 { .hw_value = 10, .center_freq = 2457},
1154 { .hw_value = 11, .center_freq = 2462},
1155 { .hw_value = 12, .center_freq = 2467},
1156 { .hw_value = 13, .center_freq = 2472},
1157};
1158
1159/* can't be const, mac80211 writes to this */
1160static struct ieee80211_supported_band wl12xx_band_2ghz = {
1161 .channels = wl12xx_channels,
1162 .n_channels = ARRAY_SIZE(wl12xx_channels),
1163 .bitrates = wl12xx_rates,
1164 .n_bitrates = ARRAY_SIZE(wl12xx_rates),
1165};
1166
1167static const struct ieee80211_ops wl12xx_ops = {
1168 .start = wl12xx_op_start,
1169 .stop = wl12xx_op_stop,
1170 .add_interface = wl12xx_op_add_interface,
1171 .remove_interface = wl12xx_op_remove_interface,
1172 .config = wl12xx_op_config,
1173 .configure_filter = wl12xx_op_configure_filter,
1174 .tx = wl12xx_op_tx,
1175 .set_key = wl12xx_op_set_key,
1176 .hw_scan = wl12xx_op_hw_scan,
1177 .bss_info_changed = wl12xx_op_bss_info_changed,
1178 .set_rts_threshold = wl12xx_op_set_rts_threshold,
1179};
1180
1181static int wl12xx_register_hw(struct wl12xx *wl)
1182{
1183 int ret;
1184
1185 if (wl->mac80211_registered)
1186 return 0;
1187
1188 SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr);
1189
1190 ret = ieee80211_register_hw(wl->hw);
1191 if (ret < 0) {
1192 wl12xx_error("unable to register mac80211 hw: %d", ret);
1193 return ret;
1194 }
1195
1196 wl->mac80211_registered = true;
1197
1198 wl12xx_notice("loaded");
1199
1200 return 0;
1201}
1202
1203static int wl12xx_init_ieee80211(struct wl12xx *wl)
1204{
1205 /* The tx descriptor buffer and the TKIP space */
1206 wl->hw->extra_tx_headroom = sizeof(struct tx_double_buffer_desc)
9f2ad4fb 1207 + WL1251_TKIP_IV_SPACE;
2f01a1f5
KV		 1208
1209 /* unit us */
1210 /* FIXME: find a proper value */
1211 wl->hw->channel_change_time = 10000;
1212
1213 wl->hw->flags = IEEE80211_HW_SIGNAL_DBM |
1214 IEEE80211_HW_NOISE_DBM;
1215
1216 wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
1217 wl->hw->wiphy->max_scan_ssids = 1;
1218 wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl12xx_band_2ghz;
1219
1220 SET_IEEE80211_DEV(wl->hw, &wl->spi->dev);
1221
1222 return 0;
1223}
1224
1225#define WL12XX_DEFAULT_CHANNEL 1
1226static int __devinit wl12xx_probe(struct spi_device *spi)
1227{
1228 struct wl12xx_platform_data *pdata;
1229 struct ieee80211_hw *hw;
1230 struct wl12xx *wl;
1231 int ret, i;
1232 static const u8 nokia_oui[3] = {0x00, 0x1f, 0xdf};
1233
1234 pdata = spi->dev.platform_data;
1235 if (!pdata) {
1236 wl12xx_error("no platform data");
1237 return -ENODEV;
1238 }
1239
1240 hw = ieee80211_alloc_hw(sizeof(*wl), &wl12xx_ops);
1241 if (!hw) {
1242 wl12xx_error("could not alloc ieee80211_hw");
1243 return -ENOMEM;
1244 }
1245
1246 wl = hw->priv;
1247 memset(wl, 0, sizeof(*wl));
1248
1249 wl->hw = hw;
1250 dev_set_drvdata(&spi->dev, wl);
1251 wl->spi = spi;
1252
1253 wl->data_in_count = 0;
1254
1255 skb_queue_head_init(&wl->tx_queue);
1256
2f01a1f5
KV		 1257 INIT_WORK(&wl->filter_work, wl12xx_filter_work);
1258 wl->channel = WL12XX_DEFAULT_CHANNEL;
1259 wl->scanning = false;
1260 wl->default_key = 0;
1261 wl->listen_int = 1;
1262 wl->rx_counter = 0;
1263 wl->rx_handled = 0;
1264 wl->rx_current_buffer = 0;
1265 wl->rx_last_id = 0;
1266 wl->rx_config = WL12XX_DEFAULT_RX_CONFIG;
1267 wl->rx_filter = WL12XX_DEFAULT_RX_FILTER;
1268 wl->elp = false;
1269 wl->psm = 0;
1270 wl->psm_requested = false;
1271 wl->tx_queue_stopped = false;
1272 wl->power_level = WL12XX_DEFAULT_POWER_LEVEL;
1273
1274 /* We use the default power on sleep time until we know which chip
1275 * we're using */
1276 wl->chip.power_on_sleep = WL12XX_DEFAULT_POWER_ON_SLEEP;
1277
1278 for (i = 0; i < FW_TX_CMPLT_BLOCK_SIZE; i++)
1279 wl->tx_frames[i] = NULL;
1280
1281 wl->next_tx_complete = 0;
1282
1283 /*
1284 * In case our MAC address is not correctly set,
1285 * we use a random but Nokia MAC.
1286 */
1287 memcpy(wl->mac_addr, nokia_oui, 3);
1288 get_random_bytes(wl->mac_addr + 3, 3);
1289
1290 wl->state = WL12XX_STATE_OFF;
1291 mutex_init(&wl->mutex);
1292
1293 wl->tx_mgmt_frm_rate = DEFAULT_HW_GEN_TX_RATE;
1294 wl->tx_mgmt_frm_mod = DEFAULT_HW_GEN_MODULATION_TYPE;
1295
4721213f
KV		 1296 wl->rx_descriptor = kmalloc(sizeof(*wl->rx_descriptor), GFP_KERNEL);
1297 if (!wl->rx_descriptor) {
1298 wl12xx_error("could not allocate memory for rx descriptor");
1299 ret = -ENOMEM;
1300 goto out_free;
1301 }
1302
2f01a1f5
KV		 1303 /* This is the only SPI value that we need to set here, the rest
1304 * comes from the board-peripherals file */
1305 spi->bits_per_word = 32;
1306
1307 ret = spi_setup(spi);
1308 if (ret < 0) {
1309 wl12xx_error("spi_setup failed");
1310 goto out_free;
1311 }
1312
1313 wl->set_power = pdata->set_power;
1314 if (!wl->set_power) {
1315 wl12xx_error("set power function missing in platform data");
c4f5c852
KV		 1316 ret = -ENODEV;
1317 goto out_free;
2f01a1f5
KV		 1318 }
1319
1320 wl->irq = spi->irq;
1321 if (wl->irq < 0) {
1322 wl12xx_error("irq missing in platform data");
c4f5c852
KV		 1323 ret = -ENODEV;
1324 goto out_free;
2f01a1f5
KV		 1325 }
1326
1327 ret = request_irq(wl->irq, wl12xx_irq, 0, DRIVER_NAME, wl);
1328 if (ret < 0) {
1329 wl12xx_error("request_irq() failed: %d", ret);
1330 goto out_free;
1331 }
1332
1333 set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
1334
1335 disable_irq(wl->irq);
1336
1337 ret = wl12xx_init_ieee80211(wl);
1338 if (ret)
1339 goto out_irq;
1340
1341 ret = wl12xx_register_hw(wl);
1342 if (ret)
1343 goto out_irq;
1344
1345 wl12xx_debugfs_init(wl);
1346
1347 wl12xx_notice("initialized");
1348
1349 return 0;
1350
1351 out_irq:
1352 free_irq(wl->irq, wl);
1353
1354 out_free:
4721213f
KV		 1355 kfree(wl->rx_descriptor);
1356 wl->rx_descriptor = NULL;
1357
2f01a1f5
KV		 1358 ieee80211_free_hw(hw);
1359
1360 return ret;
1361}
1362
1363static int __devexit wl12xx_remove(struct spi_device *spi)
1364{
1365 struct wl12xx *wl = dev_get_drvdata(&spi->dev);
1366
1367 ieee80211_unregister_hw(wl->hw);
1368
1369 wl12xx_debugfs_exit(wl);
1370
1371 free_irq(wl->irq, wl);
1372 kfree(wl->target_mem_map);
1373 kfree(wl->data_path);
1374 kfree(wl->fw);
1375 wl->fw = NULL;
1376 kfree(wl->nvs);
1377 wl->nvs = NULL;
4721213f
KV		 1378
1379 kfree(wl->rx_descriptor);
1380 wl->rx_descriptor = NULL;
1381
2f01a1f5
KV		 1382 ieee80211_free_hw(wl->hw);
1383
1384 return 0;
1385}
1386
1387
1388static struct spi_driver wl12xx_spi_driver = {
1389 .driver = {
1390 .name = "wl12xx",
1391 .bus = &spi_bus_type,
1392 .owner = THIS_MODULE,
1393 },
1394
1395 .probe = wl12xx_probe,
1396 .remove = __devexit_p(wl12xx_remove),
1397};
1398
1399static int __init wl12xx_init(void)
1400{
1401 int ret;
1402
1403 ret = spi_register_driver(&wl12xx_spi_driver);
1404 if (ret < 0) {
1405 wl12xx_error("failed to register spi driver: %d", ret);
1406 goto out;
1407 }
1408
1409out:
1410 return ret;
1411}
1412
1413static void __exit wl12xx_exit(void)
1414{
1415 spi_unregister_driver(&wl12xx_spi_driver);
1416
1417 wl12xx_notice("unloaded");
1418}
1419
1420module_init(wl12xx_init);
1421module_exit(wl12xx_exit);
1422
1423MODULE_LICENSE("GPL");
1424MODULE_AUTHOR("Kalle Valo <Kalle.Valo@nokia.com>, "
1425 "Luciano Coelho <luciano.coelho@nokia.com>");
Ubuntu Disco kernel mirror for Proxmox VE and PMG