Commit | Line | Data |
---|---|---|
f5fc0f86 LC |
1 | /* |
2 | * This file is part of wl1271 | |
3 | * | |
4 | * Copyright (C) 2008-2009 Nokia Corporation | |
5 | * | |
6 | * Contact: Luciano Coelho <luciano.coelho@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/platform_device.h> | |
26 | #include <linux/interrupt.h> | |
27 | #include <linux/firmware.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/irq.h> | |
30 | #include <linux/spi/spi.h> | |
31 | #include <linux/crc32.h> | |
32 | #include <linux/etherdevice.h> | |
1fba4974 | 33 | #include <linux/vmalloc.h> |
f5fc0f86 LC |
34 | #include <linux/spi/wl12xx.h> |
35 | ||
36 | #include "wl1271.h" | |
37 | #include "wl12xx_80211.h" | |
38 | #include "wl1271_reg.h" | |
39 | #include "wl1271_spi.h" | |
40 | #include "wl1271_event.h" | |
41 | #include "wl1271_tx.h" | |
42 | #include "wl1271_rx.h" | |
43 | #include "wl1271_ps.h" | |
44 | #include "wl1271_init.h" | |
45 | #include "wl1271_debugfs.h" | |
46 | #include "wl1271_cmd.h" | |
47 | #include "wl1271_boot.h" | |
48 | ||
49 | static int wl1271_plt_init(struct wl1271 *wl) | |
50 | { | |
51 | int ret; | |
52 | ||
53 | ret = wl1271_acx_init_mem_config(wl); | |
54 | if (ret < 0) | |
55 | return ret; | |
56 | ||
57 | ret = wl1271_cmd_data_path(wl, wl->channel, 1); | |
58 | if (ret < 0) | |
59 | return ret; | |
60 | ||
61 | return 0; | |
62 | } | |
63 | ||
64 | static void wl1271_disable_interrupts(struct wl1271 *wl) | |
65 | { | |
66 | disable_irq(wl->irq); | |
67 | } | |
68 | ||
69 | static void wl1271_power_off(struct wl1271 *wl) | |
70 | { | |
71 | wl->set_power(false); | |
72 | } | |
73 | ||
74 | static void wl1271_power_on(struct wl1271 *wl) | |
75 | { | |
76 | wl->set_power(true); | |
77 | } | |
78 | ||
79 | static void wl1271_fw_status(struct wl1271 *wl, struct wl1271_fw_status *status) | |
80 | { | |
81 | u32 total = 0; | |
82 | int i; | |
83 | ||
84 | /* | |
85 | * FIXME: Reading the FW status directly from the registers seems to | |
86 | * be the right thing to do, but it doesn't work. And in the | |
87 | * reference driver, there is a workaround called | |
88 | * USE_SDIO_24M_WORKAROUND, which reads the status from memory | |
89 | * instead, so we do the same here. | |
90 | */ | |
91 | ||
92 | wl1271_spi_mem_read(wl, STATUS_MEM_ADDRESS, status, sizeof(*status)); | |
93 | ||
94 | wl1271_debug(DEBUG_IRQ, "intr: 0x%x (fw_rx_counter = %d, " | |
95 | "drv_rx_counter = %d, tx_results_counter = %d)", | |
96 | status->intr, | |
97 | status->fw_rx_counter, | |
98 | status->drv_rx_counter, | |
99 | status->tx_results_counter); | |
100 | ||
101 | /* update number of available TX blocks */ | |
102 | for (i = 0; i < NUM_TX_QUEUES; i++) { | |
103 | u32 cnt = status->tx_released_blks[i] - wl->tx_blocks_freed[i]; | |
104 | wl->tx_blocks_freed[i] = status->tx_released_blks[i]; | |
105 | wl->tx_blocks_available += cnt; | |
106 | total += cnt; | |
107 | } | |
108 | ||
109 | /* if more blocks are available now, schedule some tx work */ | |
110 | if (total && !skb_queue_empty(&wl->tx_queue)) | |
a64b07e8 | 111 | ieee80211_queue_work(wl->hw, &wl->tx_work); |
f5fc0f86 LC |
112 | |
113 | /* update the host-chipset time offset */ | |
114 | wl->time_offset = jiffies_to_usecs(jiffies) - status->fw_localtime; | |
115 | } | |
116 | ||
117 | #define WL1271_IRQ_MAX_LOOPS 10 | |
118 | static void wl1271_irq_work(struct work_struct *work) | |
119 | { | |
120 | u32 intr, ctr = WL1271_IRQ_MAX_LOOPS; | |
121 | int ret; | |
122 | struct wl1271 *wl = | |
123 | container_of(work, struct wl1271, irq_work); | |
124 | ||
125 | mutex_lock(&wl->mutex); | |
126 | ||
127 | wl1271_debug(DEBUG_IRQ, "IRQ work"); | |
128 | ||
129 | if (wl->state == WL1271_STATE_OFF) | |
130 | goto out; | |
131 | ||
132 | ret = wl1271_ps_elp_wakeup(wl, true); | |
133 | if (ret < 0) | |
134 | goto out; | |
135 | ||
136 | wl1271_reg_write32(wl, ACX_REG_INTERRUPT_MASK, WL1271_ACX_INTR_ALL); | |
137 | ||
138 | intr = wl1271_reg_read32(wl, ACX_REG_INTERRUPT_CLEAR); | |
139 | if (!intr) { | |
140 | wl1271_debug(DEBUG_IRQ, "Zero interrupt received."); | |
141 | goto out_sleep; | |
142 | } | |
143 | ||
144 | intr &= WL1271_INTR_MASK; | |
145 | ||
146 | do { | |
147 | wl1271_fw_status(wl, wl->fw_status); | |
148 | ||
149 | ||
150 | if (intr & (WL1271_ACX_INTR_EVENT_A | | |
151 | WL1271_ACX_INTR_EVENT_B)) { | |
152 | wl1271_debug(DEBUG_IRQ, | |
153 | "WL1271_ACX_INTR_EVENT (0x%x)", intr); | |
154 | if (intr & WL1271_ACX_INTR_EVENT_A) | |
155 | wl1271_event_handle(wl, 0); | |
156 | else | |
157 | wl1271_event_handle(wl, 1); | |
158 | } | |
159 | ||
160 | if (intr & WL1271_ACX_INTR_INIT_COMPLETE) | |
161 | wl1271_debug(DEBUG_IRQ, | |
162 | "WL1271_ACX_INTR_INIT_COMPLETE"); | |
163 | ||
164 | if (intr & WL1271_ACX_INTR_HW_AVAILABLE) | |
165 | wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_HW_AVAILABLE"); | |
166 | ||
167 | if (intr & WL1271_ACX_INTR_DATA) { | |
168 | u8 tx_res_cnt = wl->fw_status->tx_results_counter - | |
169 | wl->tx_results_count; | |
170 | ||
171 | wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_DATA"); | |
172 | ||
173 | /* check for tx results */ | |
174 | if (tx_res_cnt) | |
175 | wl1271_tx_complete(wl, tx_res_cnt); | |
176 | ||
177 | wl1271_rx(wl, wl->fw_status); | |
178 | } | |
179 | ||
180 | intr = wl1271_reg_read32(wl, ACX_REG_INTERRUPT_CLEAR); | |
181 | intr &= WL1271_INTR_MASK; | |
182 | } while (intr && --ctr); | |
183 | ||
184 | out_sleep: | |
73d0a13c LC |
185 | wl1271_reg_write32(wl, ACX_REG_INTERRUPT_MASK, |
186 | WL1271_ACX_INTR_ALL & ~(WL1271_INTR_MASK)); | |
f5fc0f86 LC |
187 | wl1271_ps_elp_sleep(wl); |
188 | ||
189 | out: | |
190 | mutex_unlock(&wl->mutex); | |
191 | } | |
192 | ||
193 | static irqreturn_t wl1271_irq(int irq, void *cookie) | |
194 | { | |
195 | struct wl1271 *wl; | |
196 | unsigned long flags; | |
197 | ||
198 | wl1271_debug(DEBUG_IRQ, "IRQ"); | |
199 | ||
200 | wl = cookie; | |
201 | ||
202 | /* complete the ELP completion */ | |
203 | spin_lock_irqsave(&wl->wl_lock, flags); | |
204 | if (wl->elp_compl) { | |
205 | complete(wl->elp_compl); | |
206 | wl->elp_compl = NULL; | |
207 | } | |
208 | ||
a64b07e8 | 209 | ieee80211_queue_work(wl->hw, &wl->irq_work); |
f5fc0f86 LC |
210 | spin_unlock_irqrestore(&wl->wl_lock, flags); |
211 | ||
212 | return IRQ_HANDLED; | |
213 | } | |
214 | ||
215 | static int wl1271_fetch_firmware(struct wl1271 *wl) | |
216 | { | |
217 | const struct firmware *fw; | |
218 | int ret; | |
219 | ||
220 | ret = request_firmware(&fw, WL1271_FW_NAME, &wl->spi->dev); | |
221 | ||
222 | if (ret < 0) { | |
223 | wl1271_error("could not get firmware: %d", ret); | |
224 | return ret; | |
225 | } | |
226 | ||
227 | if (fw->size % 4) { | |
228 | wl1271_error("firmware size is not multiple of 32 bits: %zu", | |
229 | fw->size); | |
230 | ret = -EILSEQ; | |
231 | goto out; | |
232 | } | |
233 | ||
234 | wl->fw_len = fw->size; | |
1fba4974 | 235 | wl->fw = vmalloc(wl->fw_len); |
f5fc0f86 LC |
236 | |
237 | if (!wl->fw) { | |
238 | wl1271_error("could not allocate memory for the firmware"); | |
239 | ret = -ENOMEM; | |
240 | goto out; | |
241 | } | |
242 | ||
243 | memcpy(wl->fw, fw->data, wl->fw_len); | |
244 | ||
245 | ret = 0; | |
246 | ||
247 | out: | |
248 | release_firmware(fw); | |
249 | ||
250 | return ret; | |
251 | } | |
252 | ||
253 | static int wl1271_fetch_nvs(struct wl1271 *wl) | |
254 | { | |
255 | const struct firmware *fw; | |
256 | int ret; | |
257 | ||
258 | ret = request_firmware(&fw, WL1271_NVS_NAME, &wl->spi->dev); | |
259 | ||
260 | if (ret < 0) { | |
261 | wl1271_error("could not get nvs file: %d", ret); | |
262 | return ret; | |
263 | } | |
264 | ||
265 | if (fw->size % 4) { | |
266 | wl1271_error("nvs size is not multiple of 32 bits: %zu", | |
267 | fw->size); | |
268 | ret = -EILSEQ; | |
269 | goto out; | |
270 | } | |
271 | ||
272 | wl->nvs_len = fw->size; | |
273 | wl->nvs = kmalloc(wl->nvs_len, GFP_KERNEL); | |
274 | ||
275 | if (!wl->nvs) { | |
276 | wl1271_error("could not allocate memory for the nvs file"); | |
277 | ret = -ENOMEM; | |
278 | goto out; | |
279 | } | |
280 | ||
281 | memcpy(wl->nvs, fw->data, wl->nvs_len); | |
282 | ||
283 | ret = 0; | |
284 | ||
285 | out: | |
286 | release_firmware(fw); | |
287 | ||
288 | return ret; | |
289 | } | |
290 | ||
291 | static void wl1271_fw_wakeup(struct wl1271 *wl) | |
292 | { | |
293 | u32 elp_reg; | |
294 | ||
295 | elp_reg = ELPCTRL_WAKE_UP; | |
296 | wl1271_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg); | |
297 | } | |
298 | ||
299 | static int wl1271_setup(struct wl1271 *wl) | |
300 | { | |
301 | wl->fw_status = kmalloc(sizeof(*wl->fw_status), GFP_KERNEL); | |
302 | if (!wl->fw_status) | |
303 | return -ENOMEM; | |
304 | ||
305 | wl->tx_res_if = kmalloc(sizeof(*wl->tx_res_if), GFP_KERNEL); | |
306 | if (!wl->tx_res_if) { | |
307 | kfree(wl->fw_status); | |
308 | return -ENOMEM; | |
309 | } | |
310 | ||
311 | INIT_WORK(&wl->irq_work, wl1271_irq_work); | |
312 | INIT_WORK(&wl->tx_work, wl1271_tx_work); | |
313 | return 0; | |
314 | } | |
315 | ||
316 | static int wl1271_chip_wakeup(struct wl1271 *wl) | |
317 | { | |
451de97a | 318 | struct wl1271_partition_set partition; |
f5fc0f86 LC |
319 | int ret = 0; |
320 | ||
321 | wl1271_power_on(wl); | |
322 | msleep(WL1271_POWER_ON_SLEEP); | |
323 | wl1271_spi_reset(wl); | |
324 | wl1271_spi_init(wl); | |
325 | ||
326 | /* We don't need a real memory partition here, because we only want | |
327 | * to use the registers at this point. */ | |
451de97a JO |
328 | memset(&partition, 0, sizeof(partition)); |
329 | partition.reg.start = REGISTERS_BASE; | |
330 | partition.reg.size = REGISTERS_DOWN_SIZE; | |
331 | wl1271_set_partition(wl, &partition); | |
f5fc0f86 LC |
332 | |
333 | /* ELP module wake up */ | |
334 | wl1271_fw_wakeup(wl); | |
335 | ||
336 | /* whal_FwCtrl_BootSm() */ | |
337 | ||
338 | /* 0. read chip id from CHIP_ID */ | |
339 | wl->chip.id = wl1271_reg_read32(wl, CHIP_ID_B); | |
340 | ||
341 | /* 1. check if chip id is valid */ | |
342 | ||
343 | switch (wl->chip.id) { | |
344 | case CHIP_ID_1271_PG10: | |
345 | wl1271_warning("chip id 0x%x (1271 PG10) support is obsolete", | |
346 | wl->chip.id); | |
347 | ||
348 | ret = wl1271_setup(wl); | |
349 | if (ret < 0) | |
350 | goto out; | |
351 | break; | |
352 | case CHIP_ID_1271_PG20: | |
353 | wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1271 PG20)", | |
354 | wl->chip.id); | |
355 | ||
356 | ret = wl1271_setup(wl); | |
357 | if (ret < 0) | |
358 | goto out; | |
359 | break; | |
360 | default: | |
361 | wl1271_error("unsupported chip id: 0x%x", wl->chip.id); | |
362 | ret = -ENODEV; | |
363 | goto out; | |
364 | } | |
365 | ||
366 | if (wl->fw == NULL) { | |
367 | ret = wl1271_fetch_firmware(wl); | |
368 | if (ret < 0) | |
369 | goto out; | |
370 | } | |
371 | ||
372 | /* No NVS from netlink, try to get it from the filesystem */ | |
373 | if (wl->nvs == NULL) { | |
374 | ret = wl1271_fetch_nvs(wl); | |
375 | if (ret < 0) | |
376 | goto out; | |
377 | } | |
378 | ||
379 | out: | |
380 | return ret; | |
381 | } | |
382 | ||
c87dec9f JO |
383 | struct wl1271_filter_params { |
384 | unsigned int filters; | |
385 | unsigned int changed; | |
386 | int mc_list_length; | |
387 | u8 mc_list[ACX_MC_ADDRESS_GROUP_MAX][ETH_ALEN]; | |
388 | }; | |
389 | ||
390 | #define WL1271_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \ | |
391 | FIF_ALLMULTI | \ | |
392 | FIF_FCSFAIL | \ | |
393 | FIF_BCN_PRBRESP_PROMISC | \ | |
394 | FIF_CONTROL | \ | |
395 | FIF_OTHER_BSS) | |
396 | ||
f5fc0f86 LC |
397 | static void wl1271_filter_work(struct work_struct *work) |
398 | { | |
399 | struct wl1271 *wl = | |
400 | container_of(work, struct wl1271, filter_work); | |
c87dec9f JO |
401 | struct wl1271_filter_params *fp; |
402 | unsigned long flags; | |
403 | bool enabled = true; | |
f5fc0f86 LC |
404 | int ret; |
405 | ||
c87dec9f JO |
406 | /* first, get the filter parameters */ |
407 | spin_lock_irqsave(&wl->wl_lock, flags); | |
408 | fp = wl->filter_params; | |
409 | wl->filter_params = NULL; | |
410 | spin_unlock_irqrestore(&wl->wl_lock, flags); | |
411 | ||
412 | if (!fp) | |
413 | return; | |
414 | ||
415 | /* then, lock the mutex without risk of lock-up */ | |
f5fc0f86 LC |
416 | mutex_lock(&wl->mutex); |
417 | ||
418 | if (wl->state == WL1271_STATE_OFF) | |
419 | goto out; | |
420 | ||
421 | ret = wl1271_ps_elp_wakeup(wl, false); | |
422 | if (ret < 0) | |
423 | goto out; | |
424 | ||
c87dec9f JO |
425 | /* configure the mc filter regardless of the changed flags */ |
426 | if (fp->filters & FIF_ALLMULTI) | |
427 | enabled = false; | |
428 | ||
429 | ret = wl1271_acx_group_address_tbl(wl, enabled, | |
430 | fp->mc_list, fp->mc_list_length); | |
431 | if (ret < 0) | |
432 | goto out_sleep; | |
433 | ||
434 | /* determine, whether supported filter values have changed */ | |
435 | if (fp->changed == 0) | |
436 | goto out; | |
437 | ||
438 | /* apply configured filters */ | |
d94cd297 | 439 | ret = wl1271_cmd_join(wl); |
f5fc0f86 LC |
440 | if (ret < 0) |
441 | goto out_sleep; | |
442 | ||
443 | out_sleep: | |
444 | wl1271_ps_elp_sleep(wl); | |
445 | ||
446 | out: | |
447 | mutex_unlock(&wl->mutex); | |
c87dec9f | 448 | kfree(fp); |
f5fc0f86 LC |
449 | } |
450 | ||
451 | int wl1271_plt_start(struct wl1271 *wl) | |
452 | { | |
453 | int ret; | |
454 | ||
455 | mutex_lock(&wl->mutex); | |
456 | ||
457 | wl1271_notice("power up"); | |
458 | ||
459 | if (wl->state != WL1271_STATE_OFF) { | |
460 | wl1271_error("cannot go into PLT state because not " | |
461 | "in off state: %d", wl->state); | |
462 | ret = -EBUSY; | |
463 | goto out; | |
464 | } | |
465 | ||
466 | wl->state = WL1271_STATE_PLT; | |
467 | ||
468 | ret = wl1271_chip_wakeup(wl); | |
469 | if (ret < 0) | |
470 | goto out; | |
471 | ||
472 | ret = wl1271_boot(wl); | |
473 | if (ret < 0) | |
474 | goto out; | |
475 | ||
476 | wl1271_notice("firmware booted in PLT mode (%s)", wl->chip.fw_ver); | |
477 | ||
478 | ret = wl1271_plt_init(wl); | |
479 | if (ret < 0) | |
480 | goto out; | |
481 | ||
482 | out: | |
483 | mutex_unlock(&wl->mutex); | |
484 | ||
485 | return ret; | |
486 | } | |
487 | ||
488 | int wl1271_plt_stop(struct wl1271 *wl) | |
489 | { | |
490 | int ret = 0; | |
491 | ||
492 | mutex_lock(&wl->mutex); | |
493 | ||
494 | wl1271_notice("power down"); | |
495 | ||
496 | if (wl->state != WL1271_STATE_PLT) { | |
497 | wl1271_error("cannot power down because not in PLT " | |
498 | "state: %d", wl->state); | |
499 | ret = -EBUSY; | |
500 | goto out; | |
501 | } | |
502 | ||
503 | wl1271_disable_interrupts(wl); | |
504 | wl1271_power_off(wl); | |
505 | ||
506 | wl->state = WL1271_STATE_OFF; | |
507 | ||
508 | out: | |
509 | mutex_unlock(&wl->mutex); | |
510 | ||
511 | return ret; | |
512 | } | |
513 | ||
514 | ||
515 | static int wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb) | |
516 | { | |
517 | struct wl1271 *wl = hw->priv; | |
518 | ||
519 | skb_queue_tail(&wl->tx_queue, skb); | |
520 | ||
521 | /* | |
522 | * The chip specific setup must run before the first TX packet - | |
523 | * before that, the tx_work will not be initialized! | |
524 | */ | |
525 | ||
a64b07e8 | 526 | ieee80211_queue_work(wl->hw, &wl->tx_work); |
f5fc0f86 LC |
527 | |
528 | /* | |
529 | * The workqueue is slow to process the tx_queue and we need stop | |
530 | * the queue here, otherwise the queue will get too long. | |
531 | */ | |
532 | if (skb_queue_len(&wl->tx_queue) >= WL1271_TX_QUEUE_MAX_LENGTH) { | |
533 | ieee80211_stop_queues(wl->hw); | |
534 | ||
535 | /* | |
536 | * FIXME: this is racy, the variable is not properly | |
537 | * protected. Maybe fix this by removing the stupid | |
538 | * variable altogether and checking the real queue state? | |
539 | */ | |
540 | wl->tx_queue_stopped = true; | |
541 | } | |
542 | ||
543 | return NETDEV_TX_OK; | |
544 | } | |
545 | ||
546 | static int wl1271_op_start(struct ieee80211_hw *hw) | |
547 | { | |
548 | struct wl1271 *wl = hw->priv; | |
549 | int ret = 0; | |
550 | ||
551 | wl1271_debug(DEBUG_MAC80211, "mac80211 start"); | |
552 | ||
553 | mutex_lock(&wl->mutex); | |
554 | ||
555 | if (wl->state != WL1271_STATE_OFF) { | |
556 | wl1271_error("cannot start because not in off state: %d", | |
557 | wl->state); | |
558 | ret = -EBUSY; | |
559 | goto out; | |
560 | } | |
561 | ||
562 | ret = wl1271_chip_wakeup(wl); | |
563 | if (ret < 0) | |
564 | goto out; | |
565 | ||
566 | ret = wl1271_boot(wl); | |
567 | if (ret < 0) | |
568 | goto out; | |
569 | ||
570 | ret = wl1271_hw_init(wl); | |
571 | if (ret < 0) | |
572 | goto out; | |
573 | ||
574 | wl->state = WL1271_STATE_ON; | |
575 | ||
576 | wl1271_info("firmware booted (%s)", wl->chip.fw_ver); | |
577 | ||
578 | out: | |
579 | if (ret < 0) | |
580 | wl1271_power_off(wl); | |
581 | ||
582 | mutex_unlock(&wl->mutex); | |
583 | ||
584 | return ret; | |
585 | } | |
586 | ||
587 | static void wl1271_op_stop(struct ieee80211_hw *hw) | |
588 | { | |
589 | struct wl1271 *wl = hw->priv; | |
c87dec9f | 590 | unsigned long flags; |
f5fc0f86 LC |
591 | int i; |
592 | ||
593 | wl1271_info("down"); | |
594 | ||
595 | wl1271_debug(DEBUG_MAC80211, "mac80211 stop"); | |
596 | ||
c87dec9f JO |
597 | /* complete/cancel ongoing work */ |
598 | cancel_work_sync(&wl->filter_work); | |
599 | spin_lock_irqsave(&wl->wl_lock, flags); | |
600 | kfree(wl->filter_params); | |
601 | wl->filter_params = NULL; | |
602 | spin_unlock_irqrestore(&wl->wl_lock, flags); | |
603 | ||
f5fc0f86 LC |
604 | mutex_lock(&wl->mutex); |
605 | ||
606 | WARN_ON(wl->state != WL1271_STATE_ON); | |
607 | ||
608 | if (wl->scanning) { | |
609 | mutex_unlock(&wl->mutex); | |
610 | ieee80211_scan_completed(wl->hw, true); | |
611 | mutex_lock(&wl->mutex); | |
612 | wl->scanning = false; | |
613 | } | |
614 | ||
615 | wl->state = WL1271_STATE_OFF; | |
616 | ||
617 | wl1271_disable_interrupts(wl); | |
618 | ||
619 | mutex_unlock(&wl->mutex); | |
620 | ||
621 | cancel_work_sync(&wl->irq_work); | |
622 | cancel_work_sync(&wl->tx_work); | |
623 | cancel_work_sync(&wl->filter_work); | |
624 | ||
625 | mutex_lock(&wl->mutex); | |
626 | ||
627 | /* let's notify MAC80211 about the remaining pending TX frames */ | |
628 | wl1271_tx_flush(wl); | |
629 | wl1271_power_off(wl); | |
630 | ||
631 | memset(wl->bssid, 0, ETH_ALEN); | |
632 | memset(wl->ssid, 0, IW_ESSID_MAX_SIZE + 1); | |
633 | wl->ssid_len = 0; | |
634 | wl->listen_int = 1; | |
635 | wl->bss_type = MAX_BSS_TYPE; | |
8a5a37a6 | 636 | wl->band = IEEE80211_BAND_2GHZ; |
f5fc0f86 LC |
637 | |
638 | wl->rx_counter = 0; | |
639 | wl->elp = false; | |
640 | wl->psm = 0; | |
641 | wl->tx_queue_stopped = false; | |
642 | wl->power_level = WL1271_DEFAULT_POWER_LEVEL; | |
643 | wl->tx_blocks_available = 0; | |
644 | wl->tx_results_count = 0; | |
645 | wl->tx_packets_count = 0; | |
ac4e4ce5 JO |
646 | wl->tx_security_last_seq = 0; |
647 | wl->tx_security_seq_16 = 0; | |
648 | wl->tx_security_seq_32 = 0; | |
f5fc0f86 LC |
649 | wl->time_offset = 0; |
650 | wl->session_counter = 0; | |
d6e19d13 LC |
651 | wl->joined = false; |
652 | ||
f5fc0f86 LC |
653 | for (i = 0; i < NUM_TX_QUEUES; i++) |
654 | wl->tx_blocks_freed[i] = 0; | |
655 | ||
656 | wl1271_debugfs_reset(wl); | |
657 | mutex_unlock(&wl->mutex); | |
658 | } | |
659 | ||
660 | static int wl1271_op_add_interface(struct ieee80211_hw *hw, | |
661 | struct ieee80211_if_init_conf *conf) | |
662 | { | |
663 | struct wl1271 *wl = hw->priv; | |
f5fc0f86 LC |
664 | int ret = 0; |
665 | ||
e5539bcb JL |
666 | wl1271_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM", |
667 | conf->type, conf->mac_addr); | |
f5fc0f86 LC |
668 | |
669 | mutex_lock(&wl->mutex); | |
b771eee5 JO |
670 | if (wl->vif) { |
671 | ret = -EBUSY; | |
672 | goto out; | |
673 | } | |
674 | ||
675 | wl->vif = conf->vif; | |
f5fc0f86 LC |
676 | |
677 | switch (conf->type) { | |
678 | case NL80211_IFTYPE_STATION: | |
679 | wl->bss_type = BSS_TYPE_STA_BSS; | |
680 | break; | |
681 | case NL80211_IFTYPE_ADHOC: | |
682 | wl->bss_type = BSS_TYPE_IBSS; | |
683 | break; | |
684 | default: | |
685 | ret = -EOPNOTSUPP; | |
686 | goto out; | |
687 | } | |
688 | ||
689 | /* FIXME: what if conf->mac_addr changes? */ | |
690 | ||
691 | out: | |
692 | mutex_unlock(&wl->mutex); | |
693 | return ret; | |
694 | } | |
695 | ||
696 | static void wl1271_op_remove_interface(struct ieee80211_hw *hw, | |
697 | struct ieee80211_if_init_conf *conf) | |
698 | { | |
b771eee5 JO |
699 | struct wl1271 *wl = hw->priv; |
700 | ||
701 | mutex_lock(&wl->mutex); | |
f5fc0f86 | 702 | wl1271_debug(DEBUG_MAC80211, "mac80211 remove interface"); |
b771eee5 JO |
703 | wl->vif = NULL; |
704 | mutex_unlock(&wl->mutex); | |
f5fc0f86 LC |
705 | } |
706 | ||
707 | #if 0 | |
708 | static int wl1271_op_config_interface(struct ieee80211_hw *hw, | |
709 | struct ieee80211_vif *vif, | |
710 | struct ieee80211_if_conf *conf) | |
711 | { | |
712 | struct wl1271 *wl = hw->priv; | |
713 | struct sk_buff *beacon; | |
f5fc0f86 LC |
714 | int ret; |
715 | ||
3264690b DM |
716 | wl1271_debug(DEBUG_MAC80211, "mac80211 config_interface bssid %pM", |
717 | conf->bssid); | |
f5fc0f86 LC |
718 | wl1271_dump_ascii(DEBUG_MAC80211, "ssid: ", conf->ssid, |
719 | conf->ssid_len); | |
720 | ||
721 | mutex_lock(&wl->mutex); | |
722 | ||
723 | ret = wl1271_ps_elp_wakeup(wl, false); | |
724 | if (ret < 0) | |
725 | goto out; | |
726 | ||
727 | memcpy(wl->bssid, conf->bssid, ETH_ALEN); | |
728 | ||
729 | ret = wl1271_cmd_build_null_data(wl); | |
730 | if (ret < 0) | |
731 | goto out_sleep; | |
732 | ||
733 | wl->ssid_len = conf->ssid_len; | |
734 | if (wl->ssid_len) | |
735 | memcpy(wl->ssid, conf->ssid, wl->ssid_len); | |
736 | ||
737 | if (wl->bss_type != BSS_TYPE_IBSS) { | |
d94cd297 | 738 | ret = wl1271_cmd_join(wl); |
f5fc0f86 LC |
739 | if (ret < 0) |
740 | goto out_sleep; | |
741 | } | |
742 | ||
743 | if (conf->changed & IEEE80211_IFCC_BEACON) { | |
744 | beacon = ieee80211_beacon_get(hw, vif); | |
745 | ret = wl1271_cmd_template_set(wl, CMD_TEMPL_BEACON, | |
746 | beacon->data, beacon->len); | |
747 | ||
748 | if (ret < 0) { | |
749 | dev_kfree_skb(beacon); | |
750 | goto out_sleep; | |
751 | } | |
752 | ||
753 | ret = wl1271_cmd_template_set(wl, CMD_TEMPL_PROBE_RESPONSE, | |
754 | beacon->data, beacon->len); | |
755 | ||
756 | dev_kfree_skb(beacon); | |
757 | ||
758 | if (ret < 0) | |
759 | goto out_sleep; | |
760 | ||
d94cd297 | 761 | ret = wl1271_cmd_join(wl); |
f5fc0f86 LC |
762 | |
763 | if (ret < 0) | |
764 | goto out_sleep; | |
765 | } | |
766 | ||
767 | out_sleep: | |
768 | wl1271_ps_elp_sleep(wl); | |
769 | ||
770 | out: | |
771 | mutex_unlock(&wl->mutex); | |
772 | ||
773 | return ret; | |
774 | } | |
775 | #endif | |
776 | ||
777 | static int wl1271_op_config(struct ieee80211_hw *hw, u32 changed) | |
778 | { | |
779 | struct wl1271 *wl = hw->priv; | |
780 | struct ieee80211_conf *conf = &hw->conf; | |
781 | int channel, ret = 0; | |
782 | ||
783 | channel = ieee80211_frequency_to_channel(conf->channel->center_freq); | |
784 | ||
785 | wl1271_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d", | |
786 | channel, | |
787 | conf->flags & IEEE80211_CONF_PS ? "on" : "off", | |
788 | conf->power_level); | |
789 | ||
790 | mutex_lock(&wl->mutex); | |
791 | ||
8a5a37a6 JO |
792 | wl->band = conf->channel->band; |
793 | ||
f5fc0f86 LC |
794 | ret = wl1271_ps_elp_wakeup(wl, false); |
795 | if (ret < 0) | |
796 | goto out; | |
797 | ||
798 | if (channel != wl->channel) { | |
799 | u8 old_channel = wl->channel; | |
800 | wl->channel = channel; | |
801 | ||
d94cd297 | 802 | ret = wl1271_cmd_join(wl); |
f5fc0f86 LC |
803 | if (ret < 0) { |
804 | wl->channel = old_channel; | |
805 | goto out_sleep; | |
806 | } | |
807 | } | |
808 | ||
809 | ret = wl1271_cmd_build_null_data(wl); | |
810 | if (ret < 0) | |
811 | goto out_sleep; | |
812 | ||
813 | if (conf->flags & IEEE80211_CONF_PS && !wl->psm_requested) { | |
814 | wl1271_info("psm enabled"); | |
815 | ||
816 | wl->psm_requested = true; | |
817 | ||
818 | /* | |
819 | * We enter PSM only if we're already associated. | |
820 | * If we're not, we'll enter it when joining an SSID, | |
821 | * through the bss_info_changed() hook. | |
822 | */ | |
823 | ret = wl1271_ps_set_mode(wl, STATION_POWER_SAVE_MODE); | |
824 | } else if (!(conf->flags & IEEE80211_CONF_PS) && | |
825 | wl->psm_requested) { | |
826 | wl1271_info("psm disabled"); | |
827 | ||
828 | wl->psm_requested = false; | |
829 | ||
830 | if (wl->psm) | |
831 | ret = wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE); | |
832 | } | |
833 | ||
834 | if (conf->power_level != wl->power_level) { | |
835 | ret = wl1271_acx_tx_power(wl, conf->power_level); | |
836 | if (ret < 0) | |
837 | goto out; | |
838 | ||
839 | wl->power_level = conf->power_level; | |
840 | } | |
841 | ||
842 | out_sleep: | |
843 | wl1271_ps_elp_sleep(wl); | |
844 | ||
845 | out: | |
846 | mutex_unlock(&wl->mutex); | |
847 | ||
848 | return ret; | |
849 | } | |
850 | ||
c87dec9f JO |
851 | static u64 wl1271_op_prepare_multicast(struct ieee80211_hw *hw, int mc_count, |
852 | struct dev_addr_list *mc_list) | |
853 | { | |
854 | struct wl1271 *wl = hw->priv; | |
855 | struct wl1271_filter_params *fp; | |
856 | unsigned long flags; | |
857 | int i; | |
858 | ||
859 | /* | |
860 | * FIXME: we should return a hash that will be passed to | |
861 | * configure_filter() instead of saving everything in the context. | |
862 | */ | |
863 | ||
864 | fp = kzalloc(sizeof(*fp), GFP_KERNEL); | |
865 | if (!fp) { | |
866 | wl1271_error("Out of memory setting filters."); | |
867 | return 0; | |
868 | } | |
869 | ||
870 | /* update multicast filtering parameters */ | |
871 | if (mc_count > ACX_MC_ADDRESS_GROUP_MAX) { | |
872 | mc_count = 0; | |
873 | fp->filters |= FIF_ALLMULTI; | |
874 | } | |
875 | ||
876 | fp->mc_list_length = 0; | |
877 | for (i = 0; i < mc_count; i++) { | |
878 | if (mc_list->da_addrlen == ETH_ALEN) { | |
879 | memcpy(fp->mc_list[fp->mc_list_length], | |
880 | mc_list->da_addr, ETH_ALEN); | |
881 | fp->mc_list_length++; | |
882 | } else | |
883 | wl1271_warning("Unknown mc address length."); | |
884 | } | |
885 | ||
886 | spin_lock_irqsave(&wl->wl_lock, flags); | |
887 | kfree(wl->filter_params); | |
888 | wl->filter_params = fp; | |
889 | spin_unlock_irqrestore(&wl->wl_lock, flags); | |
890 | ||
891 | return 1; | |
892 | } | |
f5fc0f86 LC |
893 | |
894 | static void wl1271_op_configure_filter(struct ieee80211_hw *hw, | |
895 | unsigned int changed, | |
c87dec9f | 896 | unsigned int *total, u64 multicast) |
f5fc0f86 LC |
897 | { |
898 | struct wl1271 *wl = hw->priv; | |
899 | ||
900 | wl1271_debug(DEBUG_MAC80211, "mac80211 configure filter"); | |
901 | ||
902 | *total &= WL1271_SUPPORTED_FILTERS; | |
903 | changed &= WL1271_SUPPORTED_FILTERS; | |
904 | ||
c87dec9f | 905 | if (!multicast) |
f5fc0f86 LC |
906 | return; |
907 | ||
f5fc0f86 | 908 | /* |
c87dec9f JO |
909 | * FIXME: for now we are still using a workqueue for filter |
910 | * configuration, but with the new mac80211, this is not needed, | |
911 | * since configure_filter can now sleep. We now have | |
912 | * prepare_multicast, which needs to be atomic instead. | |
f5fc0f86 | 913 | */ |
c87dec9f JO |
914 | |
915 | /* store current filter config */ | |
916 | wl->filter_params->filters = *total; | |
917 | wl->filter_params->changed = changed; | |
918 | ||
919 | ieee80211_queue_work(wl->hw, &wl->filter_work); | |
f5fc0f86 LC |
920 | } |
921 | ||
922 | static int wl1271_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, | |
923 | struct ieee80211_vif *vif, | |
924 | struct ieee80211_sta *sta, | |
925 | struct ieee80211_key_conf *key_conf) | |
926 | { | |
927 | struct wl1271 *wl = hw->priv; | |
928 | const u8 *addr; | |
929 | int ret; | |
ac4e4ce5 JO |
930 | u32 tx_seq_32 = 0; |
931 | u16 tx_seq_16 = 0; | |
f5fc0f86 LC |
932 | u8 key_type; |
933 | ||
934 | static const u8 bcast_addr[ETH_ALEN] = | |
935 | { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; | |
936 | ||
937 | wl1271_debug(DEBUG_MAC80211, "mac80211 set key"); | |
938 | ||
939 | addr = sta ? sta->addr : bcast_addr; | |
940 | ||
941 | wl1271_debug(DEBUG_CRYPT, "CMD: 0x%x", cmd); | |
942 | wl1271_dump(DEBUG_CRYPT, "ADDR: ", addr, ETH_ALEN); | |
943 | wl1271_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x", | |
944 | key_conf->alg, key_conf->keyidx, | |
945 | key_conf->keylen, key_conf->flags); | |
946 | wl1271_dump(DEBUG_CRYPT, "KEY: ", key_conf->key, key_conf->keylen); | |
947 | ||
948 | if (is_zero_ether_addr(addr)) { | |
949 | /* We dont support TX only encryption */ | |
950 | ret = -EOPNOTSUPP; | |
951 | goto out; | |
952 | } | |
953 | ||
954 | mutex_lock(&wl->mutex); | |
955 | ||
956 | ret = wl1271_ps_elp_wakeup(wl, false); | |
957 | if (ret < 0) | |
958 | goto out_unlock; | |
959 | ||
960 | switch (key_conf->alg) { | |
961 | case ALG_WEP: | |
962 | key_type = KEY_WEP; | |
963 | ||
964 | key_conf->hw_key_idx = key_conf->keyidx; | |
965 | break; | |
966 | case ALG_TKIP: | |
967 | key_type = KEY_TKIP; | |
968 | ||
969 | key_conf->hw_key_idx = key_conf->keyidx; | |
ac4e4ce5 JO |
970 | tx_seq_32 = wl->tx_security_seq_32; |
971 | tx_seq_16 = wl->tx_security_seq_16; | |
f5fc0f86 LC |
972 | break; |
973 | case ALG_CCMP: | |
974 | key_type = KEY_AES; | |
975 | ||
976 | key_conf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
ac4e4ce5 JO |
977 | tx_seq_32 = wl->tx_security_seq_32; |
978 | tx_seq_16 = wl->tx_security_seq_16; | |
f5fc0f86 LC |
979 | break; |
980 | default: | |
981 | wl1271_error("Unknown key algo 0x%x", key_conf->alg); | |
982 | ||
983 | ret = -EOPNOTSUPP; | |
984 | goto out_sleep; | |
985 | } | |
986 | ||
987 | switch (cmd) { | |
988 | case SET_KEY: | |
989 | ret = wl1271_cmd_set_key(wl, KEY_ADD_OR_REPLACE, | |
990 | key_conf->keyidx, key_type, | |
991 | key_conf->keylen, key_conf->key, | |
ac4e4ce5 | 992 | addr, tx_seq_32, tx_seq_16); |
f5fc0f86 LC |
993 | if (ret < 0) { |
994 | wl1271_error("Could not add or replace key"); | |
995 | goto out_sleep; | |
996 | } | |
997 | break; | |
998 | ||
999 | case DISABLE_KEY: | |
1000 | ret = wl1271_cmd_set_key(wl, KEY_REMOVE, | |
1001 | key_conf->keyidx, key_type, | |
1002 | key_conf->keylen, key_conf->key, | |
ac4e4ce5 | 1003 | addr, 0, 0); |
f5fc0f86 LC |
1004 | if (ret < 0) { |
1005 | wl1271_error("Could not remove key"); | |
1006 | goto out_sleep; | |
1007 | } | |
1008 | break; | |
1009 | ||
1010 | default: | |
1011 | wl1271_error("Unsupported key cmd 0x%x", cmd); | |
1012 | ret = -EOPNOTSUPP; | |
1013 | goto out_sleep; | |
1014 | ||
1015 | break; | |
1016 | } | |
1017 | ||
1018 | out_sleep: | |
1019 | wl1271_ps_elp_sleep(wl); | |
1020 | ||
1021 | out_unlock: | |
1022 | mutex_unlock(&wl->mutex); | |
1023 | ||
1024 | out: | |
1025 | return ret; | |
1026 | } | |
1027 | ||
1028 | static int wl1271_op_hw_scan(struct ieee80211_hw *hw, | |
1029 | struct cfg80211_scan_request *req) | |
1030 | { | |
1031 | struct wl1271 *wl = hw->priv; | |
1032 | int ret; | |
1033 | u8 *ssid = NULL; | |
1034 | size_t ssid_len = 0; | |
1035 | ||
1036 | wl1271_debug(DEBUG_MAC80211, "mac80211 hw scan"); | |
1037 | ||
1038 | if (req->n_ssids) { | |
1039 | ssid = req->ssids[0].ssid; | |
1040 | ssid_len = req->ssids[0].ssid_len; | |
1041 | } | |
1042 | ||
1043 | mutex_lock(&wl->mutex); | |
1044 | ||
1045 | ret = wl1271_ps_elp_wakeup(wl, false); | |
1046 | if (ret < 0) | |
1047 | goto out; | |
1048 | ||
1049 | ret = wl1271_cmd_scan(hw->priv, ssid, ssid_len, 1, 0, 13, 3); | |
1050 | ||
1051 | wl1271_ps_elp_sleep(wl); | |
1052 | ||
1053 | out: | |
1054 | mutex_unlock(&wl->mutex); | |
1055 | ||
1056 | return ret; | |
1057 | } | |
1058 | ||
1059 | static int wl1271_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value) | |
1060 | { | |
1061 | struct wl1271 *wl = hw->priv; | |
1062 | int ret; | |
1063 | ||
1064 | mutex_lock(&wl->mutex); | |
1065 | ||
1066 | ret = wl1271_ps_elp_wakeup(wl, false); | |
1067 | if (ret < 0) | |
1068 | goto out; | |
1069 | ||
1070 | ret = wl1271_acx_rts_threshold(wl, (u16) value); | |
1071 | if (ret < 0) | |
1072 | wl1271_warning("wl1271_op_set_rts_threshold failed: %d", ret); | |
1073 | ||
1074 | wl1271_ps_elp_sleep(wl); | |
1075 | ||
1076 | out: | |
1077 | mutex_unlock(&wl->mutex); | |
1078 | ||
1079 | return ret; | |
1080 | } | |
1081 | ||
8a5a37a6 JO |
1082 | static u32 wl1271_enabled_rates_get(struct wl1271 *wl, u64 basic_rate_set) |
1083 | { | |
1084 | struct ieee80211_supported_band *band; | |
1085 | u32 enabled_rates = 0; | |
1086 | int bit; | |
1087 | ||
1088 | band = wl->hw->wiphy->bands[wl->band]; | |
1089 | for (bit = 0; bit < band->n_bitrates; bit++) { | |
1090 | if (basic_rate_set & 0x1) | |
1091 | enabled_rates |= band->bitrates[bit].hw_value; | |
1092 | basic_rate_set >>= 1; | |
1093 | } | |
1094 | ||
1095 | return enabled_rates; | |
1096 | } | |
1097 | ||
f5fc0f86 LC |
1098 | static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw, |
1099 | struct ieee80211_vif *vif, | |
1100 | struct ieee80211_bss_conf *bss_conf, | |
1101 | u32 changed) | |
1102 | { | |
1103 | enum wl1271_cmd_ps_mode mode; | |
1104 | struct wl1271 *wl = hw->priv; | |
1105 | int ret; | |
1106 | ||
1107 | wl1271_debug(DEBUG_MAC80211, "mac80211 bss info changed"); | |
1108 | ||
1109 | mutex_lock(&wl->mutex); | |
1110 | ||
1111 | ret = wl1271_ps_elp_wakeup(wl, false); | |
1112 | if (ret < 0) | |
1113 | goto out; | |
1114 | ||
1115 | if (changed & BSS_CHANGED_ASSOC) { | |
1116 | if (bss_conf->assoc) { | |
d94cd297 JO |
1117 | wl->beacon_int = bss_conf->beacon_int; |
1118 | wl->dtim_period = bss_conf->dtim_period; | |
f5fc0f86 LC |
1119 | wl->aid = bss_conf->aid; |
1120 | ||
d94cd297 JO |
1121 | ret = wl1271_cmd_join(wl); |
1122 | if (ret < 0) { | |
1123 | wl1271_warning("Association configuration " | |
1124 | "failed %d", ret); | |
1125 | goto out_sleep; | |
1126 | } | |
1127 | ||
f5fc0f86 LC |
1128 | ret = wl1271_cmd_build_ps_poll(wl, wl->aid); |
1129 | if (ret < 0) | |
1130 | goto out_sleep; | |
1131 | ||
1132 | ret = wl1271_acx_aid(wl, wl->aid); | |
1133 | if (ret < 0) | |
1134 | goto out_sleep; | |
1135 | ||
1136 | /* If we want to go in PSM but we're not there yet */ | |
1137 | if (wl->psm_requested && !wl->psm) { | |
1138 | mode = STATION_POWER_SAVE_MODE; | |
1139 | ret = wl1271_ps_set_mode(wl, mode); | |
1140 | if (ret < 0) | |
1141 | goto out_sleep; | |
1142 | } | |
d94cd297 JO |
1143 | } else { |
1144 | /* use defaults when not associated */ | |
1145 | wl->beacon_int = WL1271_DEFAULT_BEACON_INT; | |
1146 | wl->dtim_period = WL1271_DEFAULT_DTIM_PERIOD; | |
1147 | wl->basic_rate_set = WL1271_DEFAULT_BASIC_RATE_SET; | |
1148 | wl->aid = 0; | |
f5fc0f86 | 1149 | } |
d94cd297 | 1150 | |
f5fc0f86 | 1151 | } |
8a5a37a6 | 1152 | |
f5fc0f86 LC |
1153 | if (changed & BSS_CHANGED_ERP_SLOT) { |
1154 | if (bss_conf->use_short_slot) | |
1155 | ret = wl1271_acx_slot(wl, SLOT_TIME_SHORT); | |
1156 | else | |
1157 | ret = wl1271_acx_slot(wl, SLOT_TIME_LONG); | |
1158 | if (ret < 0) { | |
1159 | wl1271_warning("Set slot time failed %d", ret); | |
1160 | goto out_sleep; | |
1161 | } | |
1162 | } | |
1163 | ||
1164 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { | |
1165 | if (bss_conf->use_short_preamble) | |
1166 | wl1271_acx_set_preamble(wl, ACX_PREAMBLE_SHORT); | |
1167 | else | |
1168 | wl1271_acx_set_preamble(wl, ACX_PREAMBLE_LONG); | |
1169 | } | |
1170 | ||
1171 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { | |
1172 | if (bss_conf->use_cts_prot) | |
1173 | ret = wl1271_acx_cts_protect(wl, CTSPROTECT_ENABLE); | |
1174 | else | |
1175 | ret = wl1271_acx_cts_protect(wl, CTSPROTECT_DISABLE); | |
1176 | if (ret < 0) { | |
1177 | wl1271_warning("Set ctsprotect failed %d", ret); | |
1178 | goto out_sleep; | |
1179 | } | |
1180 | } | |
1181 | ||
8a5a37a6 | 1182 | if (changed & BSS_CHANGED_BASIC_RATES) { |
d94cd297 | 1183 | wl->basic_rate_set = wl1271_enabled_rates_get( |
8a5a37a6 | 1184 | wl, bss_conf->basic_rates); |
d94cd297 JO |
1185 | ret = wl1271_acx_rate_policies(wl, wl->basic_rate_set); |
1186 | ||
8a5a37a6 JO |
1187 | if (ret < 0) { |
1188 | wl1271_warning("Set rate policies failed %d", ret); | |
1189 | goto out_sleep; | |
1190 | } | |
d94cd297 JO |
1191 | ret = wl1271_cmd_join(wl); |
1192 | if (ret < 0) { | |
1193 | wl1271_warning("Join with new basic rate " | |
1194 | "set failed %d", ret); | |
1195 | goto out_sleep; | |
1196 | } | |
8a5a37a6 JO |
1197 | } |
1198 | ||
f5fc0f86 LC |
1199 | out_sleep: |
1200 | wl1271_ps_elp_sleep(wl); | |
1201 | ||
1202 | out: | |
1203 | mutex_unlock(&wl->mutex); | |
1204 | } | |
1205 | ||
1206 | ||
1207 | /* can't be const, mac80211 writes to this */ | |
1208 | static struct ieee80211_rate wl1271_rates[] = { | |
1209 | { .bitrate = 10, | |
1210 | .hw_value = 0x1, | |
1211 | .hw_value_short = 0x1, }, | |
1212 | { .bitrate = 20, | |
1213 | .hw_value = 0x2, | |
1214 | .hw_value_short = 0x2, | |
1215 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
1216 | { .bitrate = 55, | |
1217 | .hw_value = 0x4, | |
1218 | .hw_value_short = 0x4, | |
1219 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
1220 | { .bitrate = 110, | |
1221 | .hw_value = 0x20, | |
1222 | .hw_value_short = 0x20, | |
1223 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
1224 | { .bitrate = 60, | |
1225 | .hw_value = 0x8, | |
1226 | .hw_value_short = 0x8, }, | |
1227 | { .bitrate = 90, | |
1228 | .hw_value = 0x10, | |
1229 | .hw_value_short = 0x10, }, | |
1230 | { .bitrate = 120, | |
1231 | .hw_value = 0x40, | |
1232 | .hw_value_short = 0x40, }, | |
1233 | { .bitrate = 180, | |
1234 | .hw_value = 0x80, | |
1235 | .hw_value_short = 0x80, }, | |
1236 | { .bitrate = 240, | |
1237 | .hw_value = 0x200, | |
1238 | .hw_value_short = 0x200, }, | |
1239 | { .bitrate = 360, | |
1240 | .hw_value = 0x400, | |
1241 | .hw_value_short = 0x400, }, | |
1242 | { .bitrate = 480, | |
1243 | .hw_value = 0x800, | |
1244 | .hw_value_short = 0x800, }, | |
1245 | { .bitrate = 540, | |
1246 | .hw_value = 0x1000, | |
1247 | .hw_value_short = 0x1000, }, | |
1248 | }; | |
1249 | ||
1250 | /* can't be const, mac80211 writes to this */ | |
1251 | static struct ieee80211_channel wl1271_channels[] = { | |
1252 | { .hw_value = 1, .center_freq = 2412}, | |
1253 | { .hw_value = 2, .center_freq = 2417}, | |
1254 | { .hw_value = 3, .center_freq = 2422}, | |
1255 | { .hw_value = 4, .center_freq = 2427}, | |
1256 | { .hw_value = 5, .center_freq = 2432}, | |
1257 | { .hw_value = 6, .center_freq = 2437}, | |
1258 | { .hw_value = 7, .center_freq = 2442}, | |
1259 | { .hw_value = 8, .center_freq = 2447}, | |
1260 | { .hw_value = 9, .center_freq = 2452}, | |
1261 | { .hw_value = 10, .center_freq = 2457}, | |
1262 | { .hw_value = 11, .center_freq = 2462}, | |
1263 | { .hw_value = 12, .center_freq = 2467}, | |
1264 | { .hw_value = 13, .center_freq = 2472}, | |
1265 | }; | |
1266 | ||
1267 | /* can't be const, mac80211 writes to this */ | |
1268 | static struct ieee80211_supported_band wl1271_band_2ghz = { | |
1269 | .channels = wl1271_channels, | |
1270 | .n_channels = ARRAY_SIZE(wl1271_channels), | |
1271 | .bitrates = wl1271_rates, | |
1272 | .n_bitrates = ARRAY_SIZE(wl1271_rates), | |
1273 | }; | |
1274 | ||
1275 | static const struct ieee80211_ops wl1271_ops = { | |
1276 | .start = wl1271_op_start, | |
1277 | .stop = wl1271_op_stop, | |
1278 | .add_interface = wl1271_op_add_interface, | |
1279 | .remove_interface = wl1271_op_remove_interface, | |
1280 | .config = wl1271_op_config, | |
1281 | /* .config_interface = wl1271_op_config_interface, */ | |
c87dec9f | 1282 | .prepare_multicast = wl1271_op_prepare_multicast, |
f5fc0f86 LC |
1283 | .configure_filter = wl1271_op_configure_filter, |
1284 | .tx = wl1271_op_tx, | |
1285 | .set_key = wl1271_op_set_key, | |
1286 | .hw_scan = wl1271_op_hw_scan, | |
1287 | .bss_info_changed = wl1271_op_bss_info_changed, | |
1288 | .set_rts_threshold = wl1271_op_set_rts_threshold, | |
1289 | }; | |
1290 | ||
1291 | static int wl1271_register_hw(struct wl1271 *wl) | |
1292 | { | |
1293 | int ret; | |
1294 | ||
1295 | if (wl->mac80211_registered) | |
1296 | return 0; | |
1297 | ||
1298 | SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr); | |
1299 | ||
1300 | ret = ieee80211_register_hw(wl->hw); | |
1301 | if (ret < 0) { | |
1302 | wl1271_error("unable to register mac80211 hw: %d", ret); | |
1303 | return ret; | |
1304 | } | |
1305 | ||
1306 | wl->mac80211_registered = true; | |
1307 | ||
1308 | wl1271_notice("loaded"); | |
1309 | ||
1310 | return 0; | |
1311 | } | |
1312 | ||
1313 | static int wl1271_init_ieee80211(struct wl1271 *wl) | |
1314 | { | |
1e2b7976 JO |
1315 | /* The tx descriptor buffer and the TKIP space. */ |
1316 | wl->hw->extra_tx_headroom = WL1271_TKIP_IV_SPACE + | |
1317 | sizeof(struct wl1271_tx_hw_descr); | |
f5fc0f86 LC |
1318 | |
1319 | /* unit us */ | |
1320 | /* FIXME: find a proper value */ | |
1321 | wl->hw->channel_change_time = 10000; | |
1322 | ||
1323 | wl->hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
1922167b JO |
1324 | IEEE80211_HW_NOISE_DBM | |
1325 | IEEE80211_HW_BEACON_FILTER; | |
f5fc0f86 LC |
1326 | |
1327 | wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); | |
1328 | wl->hw->wiphy->max_scan_ssids = 1; | |
1329 | wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl1271_band_2ghz; | |
1330 | ||
1331 | SET_IEEE80211_DEV(wl->hw, &wl->spi->dev); | |
1332 | ||
1333 | return 0; | |
1334 | } | |
1335 | ||
1336 | static void wl1271_device_release(struct device *dev) | |
1337 | { | |
1338 | ||
1339 | } | |
1340 | ||
1341 | static struct platform_device wl1271_device = { | |
1342 | .name = "wl1271", | |
1343 | .id = -1, | |
1344 | ||
1345 | /* device model insists to have a release function */ | |
1346 | .dev = { | |
1347 | .release = wl1271_device_release, | |
1348 | }, | |
1349 | }; | |
1350 | ||
1351 | #define WL1271_DEFAULT_CHANNEL 0 | |
1352 | static int __devinit wl1271_probe(struct spi_device *spi) | |
1353 | { | |
1354 | struct wl12xx_platform_data *pdata; | |
1355 | struct ieee80211_hw *hw; | |
1356 | struct wl1271 *wl; | |
1357 | int ret, i; | |
1358 | static const u8 nokia_oui[3] = {0x00, 0x1f, 0xdf}; | |
1359 | ||
1360 | pdata = spi->dev.platform_data; | |
1361 | if (!pdata) { | |
1362 | wl1271_error("no platform data"); | |
1363 | return -ENODEV; | |
1364 | } | |
1365 | ||
1366 | hw = ieee80211_alloc_hw(sizeof(*wl), &wl1271_ops); | |
1367 | if (!hw) { | |
1368 | wl1271_error("could not alloc ieee80211_hw"); | |
1369 | return -ENOMEM; | |
1370 | } | |
1371 | ||
1372 | wl = hw->priv; | |
1373 | memset(wl, 0, sizeof(*wl)); | |
1374 | ||
1375 | wl->hw = hw; | |
1376 | dev_set_drvdata(&spi->dev, wl); | |
1377 | wl->spi = spi; | |
1378 | ||
1379 | skb_queue_head_init(&wl->tx_queue); | |
1380 | ||
1381 | INIT_WORK(&wl->filter_work, wl1271_filter_work); | |
37b70a81 | 1382 | INIT_DELAYED_WORK(&wl->elp_work, wl1271_elp_work); |
f5fc0f86 LC |
1383 | wl->channel = WL1271_DEFAULT_CHANNEL; |
1384 | wl->scanning = false; | |
1385 | wl->default_key = 0; | |
1386 | wl->listen_int = 1; | |
1387 | wl->rx_counter = 0; | |
1388 | wl->rx_config = WL1271_DEFAULT_RX_CONFIG; | |
1389 | wl->rx_filter = WL1271_DEFAULT_RX_FILTER; | |
1390 | wl->elp = false; | |
1391 | wl->psm = 0; | |
1392 | wl->psm_requested = false; | |
1393 | wl->tx_queue_stopped = false; | |
1394 | wl->power_level = WL1271_DEFAULT_POWER_LEVEL; | |
d94cd297 JO |
1395 | wl->beacon_int = WL1271_DEFAULT_BEACON_INT; |
1396 | wl->dtim_period = WL1271_DEFAULT_DTIM_PERIOD; | |
1397 | wl->basic_rate_set = WL1271_DEFAULT_BASIC_RATE_SET; | |
8a5a37a6 | 1398 | wl->band = IEEE80211_BAND_2GHZ; |
b771eee5 | 1399 | wl->vif = NULL; |
d6e19d13 | 1400 | wl->joined = false; |
f5fc0f86 | 1401 | |
be7078c2 | 1402 | for (i = 0; i < ACX_TX_DESCRIPTORS; i++) |
f5fc0f86 LC |
1403 | wl->tx_frames[i] = NULL; |
1404 | ||
1405 | spin_lock_init(&wl->wl_lock); | |
1406 | ||
1407 | /* | |
1408 | * In case our MAC address is not correctly set, | |
1409 | * we use a random but Nokia MAC. | |
1410 | */ | |
1411 | memcpy(wl->mac_addr, nokia_oui, 3); | |
1412 | get_random_bytes(wl->mac_addr + 3, 3); | |
1413 | ||
1414 | wl->state = WL1271_STATE_OFF; | |
1415 | mutex_init(&wl->mutex); | |
1416 | ||
1417 | wl->rx_descriptor = kmalloc(sizeof(*wl->rx_descriptor), GFP_KERNEL); | |
1418 | if (!wl->rx_descriptor) { | |
1419 | wl1271_error("could not allocate memory for rx descriptor"); | |
1420 | ret = -ENOMEM; | |
1421 | goto out_free; | |
1422 | } | |
1423 | ||
1424 | /* This is the only SPI value that we need to set here, the rest | |
1425 | * comes from the board-peripherals file */ | |
1426 | spi->bits_per_word = 32; | |
1427 | ||
1428 | ret = spi_setup(spi); | |
1429 | if (ret < 0) { | |
1430 | wl1271_error("spi_setup failed"); | |
1431 | goto out_free; | |
1432 | } | |
1433 | ||
1434 | wl->set_power = pdata->set_power; | |
1435 | if (!wl->set_power) { | |
1436 | wl1271_error("set power function missing in platform data"); | |
1437 | ret = -ENODEV; | |
1438 | goto out_free; | |
1439 | } | |
1440 | ||
1441 | wl->irq = spi->irq; | |
1442 | if (wl->irq < 0) { | |
1443 | wl1271_error("irq missing in platform data"); | |
1444 | ret = -ENODEV; | |
1445 | goto out_free; | |
1446 | } | |
1447 | ||
1448 | ret = request_irq(wl->irq, wl1271_irq, 0, DRIVER_NAME, wl); | |
1449 | if (ret < 0) { | |
1450 | wl1271_error("request_irq() failed: %d", ret); | |
1451 | goto out_free; | |
1452 | } | |
1453 | ||
1454 | set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING); | |
1455 | ||
1456 | disable_irq(wl->irq); | |
1457 | ||
1458 | ret = platform_device_register(&wl1271_device); | |
1459 | if (ret) { | |
1460 | wl1271_error("couldn't register platform device"); | |
1461 | goto out_irq; | |
1462 | } | |
1463 | dev_set_drvdata(&wl1271_device.dev, wl); | |
1464 | ||
1465 | ret = wl1271_init_ieee80211(wl); | |
1466 | if (ret) | |
1467 | goto out_platform; | |
1468 | ||
1469 | ret = wl1271_register_hw(wl); | |
1470 | if (ret) | |
1471 | goto out_platform; | |
1472 | ||
1473 | wl1271_debugfs_init(wl); | |
1474 | ||
1475 | wl1271_notice("initialized"); | |
1476 | ||
1477 | return 0; | |
1478 | ||
1479 | out_platform: | |
1480 | platform_device_unregister(&wl1271_device); | |
1481 | ||
1482 | out_irq: | |
1483 | free_irq(wl->irq, wl); | |
1484 | ||
1485 | out_free: | |
1486 | kfree(wl->rx_descriptor); | |
1487 | wl->rx_descriptor = NULL; | |
1488 | ||
1489 | ieee80211_free_hw(hw); | |
1490 | ||
1491 | return ret; | |
1492 | } | |
1493 | ||
1494 | static int __devexit wl1271_remove(struct spi_device *spi) | |
1495 | { | |
1496 | struct wl1271 *wl = dev_get_drvdata(&spi->dev); | |
1497 | ||
1498 | ieee80211_unregister_hw(wl->hw); | |
1499 | ||
1500 | wl1271_debugfs_exit(wl); | |
1501 | platform_device_unregister(&wl1271_device); | |
1502 | free_irq(wl->irq, wl); | |
1503 | kfree(wl->target_mem_map); | |
1fba4974 | 1504 | vfree(wl->fw); |
f5fc0f86 LC |
1505 | wl->fw = NULL; |
1506 | kfree(wl->nvs); | |
1507 | wl->nvs = NULL; | |
1508 | ||
1509 | kfree(wl->rx_descriptor); | |
1510 | wl->rx_descriptor = NULL; | |
1511 | ||
1512 | kfree(wl->fw_status); | |
1513 | kfree(wl->tx_res_if); | |
1514 | ||
1515 | ieee80211_free_hw(wl->hw); | |
1516 | ||
1517 | return 0; | |
1518 | } | |
1519 | ||
1520 | ||
1521 | static struct spi_driver wl1271_spi_driver = { | |
1522 | .driver = { | |
1523 | .name = "wl1271", | |
1524 | .bus = &spi_bus_type, | |
1525 | .owner = THIS_MODULE, | |
1526 | }, | |
1527 | ||
1528 | .probe = wl1271_probe, | |
1529 | .remove = __devexit_p(wl1271_remove), | |
1530 | }; | |
1531 | ||
1532 | static int __init wl1271_init(void) | |
1533 | { | |
1534 | int ret; | |
1535 | ||
1536 | ret = spi_register_driver(&wl1271_spi_driver); | |
1537 | if (ret < 0) { | |
1538 | wl1271_error("failed to register spi driver: %d", ret); | |
1539 | goto out; | |
1540 | } | |
1541 | ||
1542 | out: | |
1543 | return ret; | |
1544 | } | |
1545 | ||
1546 | static void __exit wl1271_exit(void) | |
1547 | { | |
1548 | spi_unregister_driver(&wl1271_spi_driver); | |
1549 | ||
1550 | wl1271_notice("unloaded"); | |
1551 | } | |
1552 | ||
1553 | module_init(wl1271_init); | |
1554 | module_exit(wl1271_exit); | |
1555 | ||
1556 | MODULE_LICENSE("GPL"); | |
1557 | MODULE_AUTHOR("Luciano Coelho <luciano.coelho@nokia.com>"); | |
2f018725 | 1558 | MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>"); |