]>
Commit | Line | Data |
---|---|---|
2f01a1f5 | 1 | /* |
80301cdc | 2 | * This file is part of wl1251 |
2f01a1f5 KV |
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> | |
2f01a1f5 KV |
29 | #include <linux/crc32.h> |
30 | #include <linux/etherdevice.h> | |
2f01a1f5 | 31 | |
13674118 | 32 | #include "wl1251.h" |
2f01a1f5 | 33 | #include "wl12xx_80211.h" |
29d904c4 | 34 | #include "wl1251_reg.h" |
0764de64 | 35 | #include "wl1251_io.h" |
8e639c06 | 36 | #include "wl1251_cmd.h" |
ef2f8d45 | 37 | #include "wl1251_event.h" |
9f2ad4fb | 38 | #include "wl1251_tx.h" |
ef2f8d45 KV |
39 | #include "wl1251_rx.h" |
40 | #include "wl1251_ps.h" | |
41 | #include "wl1251_init.h" | |
42 | #include "wl1251_debugfs.h" | |
0e71bb08 | 43 | #include "wl1251_boot.h" |
2f01a1f5 | 44 | |
b5ed9c1b | 45 | void wl1251_enable_interrupts(struct wl1251 *wl) |
2f01a1f5 | 46 | { |
b5ed9c1b BC |
47 | wl->if_ops->enable_irq(wl); |
48 | } | |
49 | ||
50 | void wl1251_disable_interrupts(struct wl1251 *wl) | |
51 | { | |
52 | wl->if_ops->disable_irq(wl); | |
2f01a1f5 KV |
53 | } |
54 | ||
80301cdc | 55 | static void wl1251_power_off(struct wl1251 *wl) |
2f01a1f5 KV |
56 | { |
57 | wl->set_power(false); | |
58 | } | |
59 | ||
80301cdc | 60 | static void wl1251_power_on(struct wl1251 *wl) |
2f01a1f5 KV |
61 | { |
62 | wl->set_power(true); | |
63 | } | |
64 | ||
80301cdc | 65 | static int wl1251_fetch_firmware(struct wl1251 *wl) |
2f01a1f5 KV |
66 | { |
67 | const struct firmware *fw; | |
6c766f41 | 68 | struct device *dev = wiphy_dev(wl->hw->wiphy); |
2f01a1f5 KV |
69 | int ret; |
70 | ||
0e71bb08 | 71 | ret = request_firmware(&fw, WL1251_FW_NAME, dev); |
2f01a1f5 KV |
72 | |
73 | if (ret < 0) { | |
80301cdc | 74 | wl1251_error("could not get firmware: %d", ret); |
2f01a1f5 KV |
75 | return ret; |
76 | } | |
77 | ||
78 | if (fw->size % 4) { | |
80301cdc | 79 | wl1251_error("firmware size is not multiple of 32 bits: %zu", |
2f01a1f5 KV |
80 | fw->size); |
81 | ret = -EILSEQ; | |
82 | goto out; | |
83 | } | |
84 | ||
85 | wl->fw_len = fw->size; | |
86 | wl->fw = kmalloc(wl->fw_len, GFP_KERNEL); | |
87 | ||
88 | if (!wl->fw) { | |
80301cdc | 89 | wl1251_error("could not allocate memory for the firmware"); |
2f01a1f5 KV |
90 | ret = -ENOMEM; |
91 | goto out; | |
92 | } | |
93 | ||
94 | memcpy(wl->fw, fw->data, wl->fw_len); | |
95 | ||
96 | ret = 0; | |
97 | ||
98 | out: | |
99 | release_firmware(fw); | |
100 | ||
101 | return ret; | |
102 | } | |
103 | ||
80301cdc | 104 | static int wl1251_fetch_nvs(struct wl1251 *wl) |
2f01a1f5 KV |
105 | { |
106 | const struct firmware *fw; | |
6c766f41 | 107 | struct device *dev = wiphy_dev(wl->hw->wiphy); |
2f01a1f5 KV |
108 | int ret; |
109 | ||
0e71bb08 | 110 | ret = request_firmware(&fw, WL1251_NVS_NAME, dev); |
2f01a1f5 KV |
111 | |
112 | if (ret < 0) { | |
80301cdc | 113 | wl1251_error("could not get nvs file: %d", ret); |
2f01a1f5 KV |
114 | return ret; |
115 | } | |
116 | ||
117 | if (fw->size % 4) { | |
80301cdc | 118 | wl1251_error("nvs size is not multiple of 32 bits: %zu", |
2f01a1f5 KV |
119 | fw->size); |
120 | ret = -EILSEQ; | |
121 | goto out; | |
122 | } | |
123 | ||
124 | wl->nvs_len = fw->size; | |
125 | wl->nvs = kmalloc(wl->nvs_len, GFP_KERNEL); | |
126 | ||
127 | if (!wl->nvs) { | |
80301cdc | 128 | wl1251_error("could not allocate memory for the nvs file"); |
2f01a1f5 KV |
129 | ret = -ENOMEM; |
130 | goto out; | |
131 | } | |
132 | ||
133 | memcpy(wl->nvs, fw->data, wl->nvs_len); | |
134 | ||
135 | ret = 0; | |
136 | ||
137 | out: | |
138 | release_firmware(fw); | |
139 | ||
140 | return ret; | |
141 | } | |
142 | ||
80301cdc | 143 | static void wl1251_fw_wakeup(struct wl1251 *wl) |
2f01a1f5 KV |
144 | { |
145 | u32 elp_reg; | |
146 | ||
147 | elp_reg = ELPCTRL_WAKE_UP; | |
80301cdc KV |
148 | wl1251_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg); |
149 | elp_reg = wl1251_read32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR); | |
2f01a1f5 | 150 | |
05fac682 | 151 | if (!(elp_reg & ELPCTRL_WLAN_READY)) |
80301cdc | 152 | wl1251_warning("WLAN not ready"); |
2f01a1f5 KV |
153 | } |
154 | ||
80301cdc | 155 | static int wl1251_chip_wakeup(struct wl1251 *wl) |
2f01a1f5 KV |
156 | { |
157 | int ret = 0; | |
158 | ||
80301cdc | 159 | wl1251_power_on(wl); |
0e71bb08 | 160 | msleep(WL1251_POWER_ON_SLEEP); |
08d9f572 | 161 | wl->if_ops->reset(wl); |
2f01a1f5 KV |
162 | |
163 | /* We don't need a real memory partition here, because we only want | |
164 | * to use the registers at this point. */ | |
80301cdc | 165 | wl1251_set_partition(wl, |
2f01a1f5 KV |
166 | 0x00000000, |
167 | 0x00000000, | |
168 | REGISTERS_BASE, | |
169 | REGISTERS_DOWN_SIZE); | |
170 | ||
171 | /* ELP module wake up */ | |
80301cdc | 172 | wl1251_fw_wakeup(wl); |
2f01a1f5 KV |
173 | |
174 | /* whal_FwCtrl_BootSm() */ | |
175 | ||
176 | /* 0. read chip id from CHIP_ID */ | |
0e71bb08 | 177 | wl->chip_id = wl1251_reg_read32(wl, CHIP_ID_B); |
2f01a1f5 KV |
178 | |
179 | /* 1. check if chip id is valid */ | |
180 | ||
0e71bb08 | 181 | switch (wl->chip_id) { |
2f01a1f5 | 182 | case CHIP_ID_1251_PG12: |
80301cdc | 183 | wl1251_debug(DEBUG_BOOT, "chip id 0x%x (1251 PG12)", |
0e71bb08 | 184 | wl->chip_id); |
2f01a1f5 | 185 | break; |
2f01a1f5 KV |
186 | case CHIP_ID_1251_PG10: |
187 | case CHIP_ID_1251_PG11: | |
188 | default: | |
0e71bb08 | 189 | wl1251_error("unsupported chip id: 0x%x", wl->chip_id); |
2f01a1f5 KV |
190 | ret = -ENODEV; |
191 | goto out; | |
192 | } | |
193 | ||
194 | if (wl->fw == NULL) { | |
80301cdc | 195 | ret = wl1251_fetch_firmware(wl); |
2f01a1f5 KV |
196 | if (ret < 0) |
197 | goto out; | |
198 | } | |
199 | ||
200 | /* No NVS from netlink, try to get it from the filesystem */ | |
201 | if (wl->nvs == NULL) { | |
80301cdc | 202 | ret = wl1251_fetch_nvs(wl); |
2f01a1f5 KV |
203 | if (ret < 0) |
204 | goto out; | |
205 | } | |
206 | ||
207 | out: | |
208 | return ret; | |
209 | } | |
210 | ||
0e71bb08 KV |
211 | static void wl1251_irq_work(struct work_struct *work) |
212 | { | |
213 | u32 intr; | |
214 | struct wl1251 *wl = | |
215 | container_of(work, struct wl1251, irq_work); | |
216 | int ret; | |
217 | ||
218 | mutex_lock(&wl->mutex); | |
219 | ||
220 | wl1251_debug(DEBUG_IRQ, "IRQ work"); | |
221 | ||
222 | if (wl->state == WL1251_STATE_OFF) | |
223 | goto out; | |
224 | ||
225 | ret = wl1251_ps_elp_wakeup(wl); | |
226 | if (ret < 0) | |
227 | goto out; | |
228 | ||
229 | wl1251_reg_write32(wl, ACX_REG_INTERRUPT_MASK, WL1251_ACX_INTR_ALL); | |
230 | ||
231 | intr = wl1251_reg_read32(wl, ACX_REG_INTERRUPT_CLEAR); | |
232 | wl1251_debug(DEBUG_IRQ, "intr: 0x%x", intr); | |
233 | ||
234 | if (wl->data_path) { | |
235 | wl->rx_counter = | |
236 | wl1251_mem_read32(wl, wl->data_path->rx_control_addr); | |
237 | ||
238 | /* We handle a frmware bug here */ | |
239 | switch ((wl->rx_counter - wl->rx_handled) & 0xf) { | |
240 | case 0: | |
241 | wl1251_debug(DEBUG_IRQ, "RX: FW and host in sync"); | |
242 | intr &= ~WL1251_ACX_INTR_RX0_DATA; | |
243 | intr &= ~WL1251_ACX_INTR_RX1_DATA; | |
244 | break; | |
245 | case 1: | |
246 | wl1251_debug(DEBUG_IRQ, "RX: FW +1"); | |
247 | intr |= WL1251_ACX_INTR_RX0_DATA; | |
248 | intr &= ~WL1251_ACX_INTR_RX1_DATA; | |
249 | break; | |
250 | case 2: | |
251 | wl1251_debug(DEBUG_IRQ, "RX: FW +2"); | |
252 | intr |= WL1251_ACX_INTR_RX0_DATA; | |
253 | intr |= WL1251_ACX_INTR_RX1_DATA; | |
254 | break; | |
255 | default: | |
256 | wl1251_warning("RX: FW and host out of sync: %d", | |
257 | wl->rx_counter - wl->rx_handled); | |
258 | break; | |
259 | } | |
260 | ||
261 | wl->rx_handled = wl->rx_counter; | |
262 | ||
263 | ||
264 | wl1251_debug(DEBUG_IRQ, "RX counter: %d", wl->rx_counter); | |
265 | } | |
266 | ||
267 | intr &= wl->intr_mask; | |
268 | ||
269 | if (intr == 0) { | |
270 | wl1251_debug(DEBUG_IRQ, "INTR is 0"); | |
271 | wl1251_reg_write32(wl, ACX_REG_INTERRUPT_MASK, | |
272 | ~(wl->intr_mask)); | |
273 | ||
274 | goto out_sleep; | |
275 | } | |
276 | ||
277 | if (intr & WL1251_ACX_INTR_RX0_DATA) { | |
278 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_RX0_DATA"); | |
279 | wl1251_rx(wl); | |
280 | } | |
281 | ||
282 | if (intr & WL1251_ACX_INTR_RX1_DATA) { | |
283 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_RX1_DATA"); | |
284 | wl1251_rx(wl); | |
285 | } | |
286 | ||
287 | if (intr & WL1251_ACX_INTR_TX_RESULT) { | |
288 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_TX_RESULT"); | |
289 | wl1251_tx_complete(wl); | |
290 | } | |
291 | ||
292 | if (intr & (WL1251_ACX_INTR_EVENT_A | WL1251_ACX_INTR_EVENT_B)) { | |
293 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_EVENT (0x%x)", intr); | |
294 | if (intr & WL1251_ACX_INTR_EVENT_A) | |
295 | wl1251_event_handle(wl, 0); | |
296 | else | |
297 | wl1251_event_handle(wl, 1); | |
298 | } | |
299 | ||
300 | if (intr & WL1251_ACX_INTR_INIT_COMPLETE) | |
301 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_INIT_COMPLETE"); | |
302 | ||
303 | wl1251_reg_write32(wl, ACX_REG_INTERRUPT_MASK, ~(wl->intr_mask)); | |
304 | ||
305 | out_sleep: | |
306 | wl1251_ps_elp_sleep(wl); | |
307 | ||
308 | out: | |
309 | mutex_unlock(&wl->mutex); | |
310 | } | |
311 | ||
ae46ae17 KV |
312 | static int wl1251_join(struct wl1251 *wl, u8 bss_type, u8 channel, |
313 | u16 beacon_interval, u8 dtim_period) | |
314 | { | |
315 | int ret; | |
316 | ||
317 | ret = wl1251_acx_frame_rates(wl, DEFAULT_HW_GEN_TX_RATE, | |
318 | DEFAULT_HW_GEN_MODULATION_TYPE, | |
319 | wl->tx_mgmt_frm_rate, | |
320 | wl->tx_mgmt_frm_mod); | |
321 | if (ret < 0) | |
322 | goto out; | |
323 | ||
324 | ||
325 | ret = wl1251_cmd_join(wl, bss_type, channel, beacon_interval, | |
326 | dtim_period); | |
327 | if (ret < 0) | |
328 | goto out; | |
329 | ||
330 | /* | |
331 | * FIXME: we should wait for JOIN_EVENT_COMPLETE_ID but to simplify | |
332 | * locking we just sleep instead, for now | |
333 | */ | |
334 | msleep(10); | |
335 | ||
336 | out: | |
337 | return ret; | |
338 | } | |
339 | ||
80301cdc | 340 | static void wl1251_filter_work(struct work_struct *work) |
2f01a1f5 | 341 | { |
80301cdc KV |
342 | struct wl1251 *wl = |
343 | container_of(work, struct wl1251, filter_work); | |
2f01a1f5 KV |
344 | int ret; |
345 | ||
346 | mutex_lock(&wl->mutex); | |
347 | ||
80301cdc | 348 | if (wl->state == WL1251_STATE_OFF) |
2f01a1f5 KV |
349 | goto out; |
350 | ||
80301cdc | 351 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
352 | if (ret < 0) |
353 | goto out; | |
01d9cfbd | 354 | |
ae46ae17 KV |
355 | ret = wl1251_join(wl, wl->bss_type, wl->channel, wl->beacon_int, |
356 | wl->dtim_period); | |
2f01a1f5 | 357 | if (ret < 0) |
c5483b71 | 358 | goto out_sleep; |
2f01a1f5 | 359 | |
c5483b71 | 360 | out_sleep: |
80301cdc | 361 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
362 | |
363 | out: | |
2f01a1f5 KV |
364 | mutex_unlock(&wl->mutex); |
365 | } | |
366 | ||
80301cdc | 367 | static int wl1251_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
2f01a1f5 | 368 | { |
80301cdc | 369 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
370 | |
371 | skb_queue_tail(&wl->tx_queue, skb); | |
372 | ||
9f2ad4fb JO |
373 | /* |
374 | * The chip specific setup must run before the first TX packet - | |
375 | * before that, the tx_work will not be initialized! | |
376 | */ | |
377 | ||
16e711f9 | 378 | ieee80211_queue_work(wl->hw, &wl->tx_work); |
2f01a1f5 KV |
379 | |
380 | /* | |
381 | * The workqueue is slow to process the tx_queue and we need stop | |
382 | * the queue here, otherwise the queue will get too long. | |
383 | */ | |
80301cdc | 384 | if (skb_queue_len(&wl->tx_queue) >= WL1251_TX_QUEUE_MAX_LENGTH) { |
2f01a1f5 KV |
385 | ieee80211_stop_queues(wl->hw); |
386 | ||
387 | /* | |
388 | * FIXME: this is racy, the variable is not properly | |
389 | * protected. Maybe fix this by removing the stupid | |
390 | * variable altogether and checking the real queue state? | |
391 | */ | |
392 | wl->tx_queue_stopped = true; | |
393 | } | |
394 | ||
395 | return NETDEV_TX_OK; | |
396 | } | |
397 | ||
80301cdc | 398 | static int wl1251_op_start(struct ieee80211_hw *hw) |
2f01a1f5 | 399 | { |
80301cdc | 400 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
401 | int ret = 0; |
402 | ||
80301cdc | 403 | wl1251_debug(DEBUG_MAC80211, "mac80211 start"); |
2f01a1f5 KV |
404 | |
405 | mutex_lock(&wl->mutex); | |
406 | ||
80301cdc KV |
407 | if (wl->state != WL1251_STATE_OFF) { |
408 | wl1251_error("cannot start because not in off state: %d", | |
2f01a1f5 KV |
409 | wl->state); |
410 | ret = -EBUSY; | |
411 | goto out; | |
412 | } | |
413 | ||
80301cdc | 414 | ret = wl1251_chip_wakeup(wl); |
2f01a1f5 | 415 | if (ret < 0) |
fe643414 | 416 | goto out; |
2f01a1f5 | 417 | |
0e71bb08 | 418 | ret = wl1251_boot(wl); |
2f01a1f5 KV |
419 | if (ret < 0) |
420 | goto out; | |
421 | ||
0e71bb08 | 422 | ret = wl1251_hw_init(wl); |
2f01a1f5 KV |
423 | if (ret < 0) |
424 | goto out; | |
425 | ||
80301cdc | 426 | ret = wl1251_acx_station_id(wl); |
2f01a1f5 KV |
427 | if (ret < 0) |
428 | goto out; | |
429 | ||
80301cdc | 430 | wl->state = WL1251_STATE_ON; |
2f01a1f5 | 431 | |
0e71bb08 | 432 | wl1251_info("firmware booted (%s)", wl->fw_ver); |
2f01a1f5 KV |
433 | |
434 | out: | |
435 | if (ret < 0) | |
80301cdc | 436 | wl1251_power_off(wl); |
2f01a1f5 KV |
437 | |
438 | mutex_unlock(&wl->mutex); | |
439 | ||
440 | return ret; | |
441 | } | |
442 | ||
80301cdc | 443 | static void wl1251_op_stop(struct ieee80211_hw *hw) |
2f01a1f5 | 444 | { |
80301cdc | 445 | struct wl1251 *wl = hw->priv; |
2f01a1f5 | 446 | |
80301cdc | 447 | wl1251_info("down"); |
2f01a1f5 | 448 | |
80301cdc | 449 | wl1251_debug(DEBUG_MAC80211, "mac80211 stop"); |
2f01a1f5 KV |
450 | |
451 | mutex_lock(&wl->mutex); | |
452 | ||
80301cdc | 453 | WARN_ON(wl->state != WL1251_STATE_ON); |
2f01a1f5 KV |
454 | |
455 | if (wl->scanning) { | |
456 | mutex_unlock(&wl->mutex); | |
457 | ieee80211_scan_completed(wl->hw, true); | |
458 | mutex_lock(&wl->mutex); | |
459 | wl->scanning = false; | |
460 | } | |
461 | ||
80301cdc | 462 | wl->state = WL1251_STATE_OFF; |
2f01a1f5 | 463 | |
80301cdc | 464 | wl1251_disable_interrupts(wl); |
2f01a1f5 KV |
465 | |
466 | mutex_unlock(&wl->mutex); | |
467 | ||
468 | cancel_work_sync(&wl->irq_work); | |
469 | cancel_work_sync(&wl->tx_work); | |
470 | cancel_work_sync(&wl->filter_work); | |
471 | ||
472 | mutex_lock(&wl->mutex); | |
473 | ||
474 | /* let's notify MAC80211 about the remaining pending TX frames */ | |
0e71bb08 | 475 | wl1251_tx_flush(wl); |
80301cdc | 476 | wl1251_power_off(wl); |
2f01a1f5 KV |
477 | |
478 | memset(wl->bssid, 0, ETH_ALEN); | |
479 | wl->listen_int = 1; | |
480 | wl->bss_type = MAX_BSS_TYPE; | |
481 | ||
482 | wl->data_in_count = 0; | |
483 | wl->rx_counter = 0; | |
484 | wl->rx_handled = 0; | |
485 | wl->rx_current_buffer = 0; | |
486 | wl->rx_last_id = 0; | |
487 | wl->next_tx_complete = 0; | |
488 | wl->elp = false; | |
489 | wl->psm = 0; | |
490 | wl->tx_queue_stopped = false; | |
80301cdc | 491 | wl->power_level = WL1251_DEFAULT_POWER_LEVEL; |
9780279c | 492 | wl->channel = WL1251_DEFAULT_CHANNEL; |
2f01a1f5 | 493 | |
80301cdc | 494 | wl1251_debugfs_reset(wl); |
2f01a1f5 KV |
495 | |
496 | mutex_unlock(&wl->mutex); | |
497 | } | |
498 | ||
80301cdc | 499 | static int wl1251_op_add_interface(struct ieee80211_hw *hw, |
2f01a1f5 KV |
500 | struct ieee80211_if_init_conf *conf) |
501 | { | |
80301cdc | 502 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
503 | int ret = 0; |
504 | ||
e91d8334 JB |
505 | wl1251_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM", |
506 | conf->type, conf->mac_addr); | |
2f01a1f5 KV |
507 | |
508 | mutex_lock(&wl->mutex); | |
509 | ||
510 | switch (conf->type) { | |
511 | case NL80211_IFTYPE_STATION: | |
512 | wl->bss_type = BSS_TYPE_STA_BSS; | |
513 | break; | |
514 | case NL80211_IFTYPE_ADHOC: | |
515 | wl->bss_type = BSS_TYPE_IBSS; | |
516 | break; | |
517 | default: | |
518 | ret = -EOPNOTSUPP; | |
519 | goto out; | |
520 | } | |
521 | ||
522 | if (memcmp(wl->mac_addr, conf->mac_addr, ETH_ALEN)) { | |
523 | memcpy(wl->mac_addr, conf->mac_addr, ETH_ALEN); | |
524 | SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr); | |
80301cdc | 525 | ret = wl1251_acx_station_id(wl); |
2f01a1f5 KV |
526 | if (ret < 0) |
527 | goto out; | |
528 | } | |
529 | ||
530 | out: | |
531 | mutex_unlock(&wl->mutex); | |
532 | return ret; | |
533 | } | |
534 | ||
80301cdc | 535 | static void wl1251_op_remove_interface(struct ieee80211_hw *hw, |
2f01a1f5 KV |
536 | struct ieee80211_if_init_conf *conf) |
537 | { | |
80301cdc | 538 | wl1251_debug(DEBUG_MAC80211, "mac80211 remove interface"); |
2f01a1f5 KV |
539 | } |
540 | ||
80301cdc | 541 | static int wl1251_build_null_data(struct wl1251 *wl) |
2f01a1f5 KV |
542 | { |
543 | struct wl12xx_null_data_template template; | |
544 | ||
545 | if (!is_zero_ether_addr(wl->bssid)) { | |
546 | memcpy(template.header.da, wl->bssid, ETH_ALEN); | |
547 | memcpy(template.header.bssid, wl->bssid, ETH_ALEN); | |
548 | } else { | |
549 | memset(template.header.da, 0xff, ETH_ALEN); | |
550 | memset(template.header.bssid, 0xff, ETH_ALEN); | |
551 | } | |
552 | ||
553 | memcpy(template.header.sa, wl->mac_addr, ETH_ALEN); | |
554 | template.header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_DATA | | |
555 | IEEE80211_STYPE_NULLFUNC); | |
556 | ||
80301cdc | 557 | return wl1251_cmd_template_set(wl, CMD_NULL_DATA, &template, |
2f01a1f5 KV |
558 | sizeof(template)); |
559 | ||
560 | } | |
561 | ||
80301cdc | 562 | static int wl1251_build_ps_poll(struct wl1251 *wl, u16 aid) |
2f01a1f5 KV |
563 | { |
564 | struct wl12xx_ps_poll_template template; | |
565 | ||
566 | memcpy(template.bssid, wl->bssid, ETH_ALEN); | |
567 | memcpy(template.ta, wl->mac_addr, ETH_ALEN); | |
568 | template.aid = aid; | |
569 | template.fc = cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_PSPOLL); | |
570 | ||
80301cdc | 571 | return wl1251_cmd_template_set(wl, CMD_PS_POLL, &template, |
2f01a1f5 KV |
572 | sizeof(template)); |
573 | ||
574 | } | |
575 | ||
80301cdc | 576 | static int wl1251_op_config(struct ieee80211_hw *hw, u32 changed) |
2f01a1f5 | 577 | { |
80301cdc | 578 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
579 | struct ieee80211_conf *conf = &hw->conf; |
580 | int channel, ret = 0; | |
581 | ||
582 | channel = ieee80211_frequency_to_channel(conf->channel->center_freq); | |
583 | ||
80301cdc | 584 | wl1251_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d", |
2f01a1f5 KV |
585 | channel, |
586 | conf->flags & IEEE80211_CONF_PS ? "on" : "off", | |
587 | conf->power_level); | |
588 | ||
589 | mutex_lock(&wl->mutex); | |
590 | ||
80301cdc | 591 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
592 | if (ret < 0) |
593 | goto out; | |
01d9cfbd | 594 | |
2f01a1f5 | 595 | if (channel != wl->channel) { |
fe9a9846 KV |
596 | wl->channel = channel; |
597 | ||
ae46ae17 KV |
598 | ret = wl1251_join(wl, wl->bss_type, wl->channel, |
599 | wl->beacon_int, wl->dtim_period); | |
2f01a1f5 | 600 | if (ret < 0) |
c5483b71 | 601 | goto out_sleep; |
2f01a1f5 KV |
602 | } |
603 | ||
80301cdc | 604 | ret = wl1251_build_null_data(wl); |
2f01a1f5 | 605 | if (ret < 0) |
c5483b71 | 606 | goto out_sleep; |
2f01a1f5 KV |
607 | |
608 | if (conf->flags & IEEE80211_CONF_PS && !wl->psm_requested) { | |
47af3fe3 | 609 | wl1251_debug(DEBUG_PSM, "psm enabled"); |
2f01a1f5 KV |
610 | |
611 | wl->psm_requested = true; | |
612 | ||
613 | /* | |
614 | * We enter PSM only if we're already associated. | |
615 | * If we're not, we'll enter it when joining an SSID, | |
616 | * through the bss_info_changed() hook. | |
617 | */ | |
80301cdc | 618 | ret = wl1251_ps_set_mode(wl, STATION_POWER_SAVE_MODE); |
2f01a1f5 KV |
619 | } else if (!(conf->flags & IEEE80211_CONF_PS) && |
620 | wl->psm_requested) { | |
47af3fe3 | 621 | wl1251_debug(DEBUG_PSM, "psm disabled"); |
2f01a1f5 KV |
622 | |
623 | wl->psm_requested = false; | |
624 | ||
625 | if (wl->psm) | |
80301cdc | 626 | ret = wl1251_ps_set_mode(wl, STATION_ACTIVE_MODE); |
2f01a1f5 KV |
627 | } |
628 | ||
629 | if (conf->power_level != wl->power_level) { | |
80301cdc | 630 | ret = wl1251_acx_tx_power(wl, conf->power_level); |
2f01a1f5 KV |
631 | if (ret < 0) |
632 | goto out; | |
633 | ||
634 | wl->power_level = conf->power_level; | |
635 | } | |
636 | ||
c5483b71 | 637 | out_sleep: |
80301cdc | 638 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
639 | |
640 | out: | |
2f01a1f5 | 641 | mutex_unlock(&wl->mutex); |
c5483b71 | 642 | |
2f01a1f5 KV |
643 | return ret; |
644 | } | |
645 | ||
80301cdc | 646 | #define WL1251_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \ |
2f01a1f5 KV |
647 | FIF_ALLMULTI | \ |
648 | FIF_FCSFAIL | \ | |
649 | FIF_BCN_PRBRESP_PROMISC | \ | |
650 | FIF_CONTROL | \ | |
651 | FIF_OTHER_BSS) | |
652 | ||
80301cdc | 653 | static void wl1251_op_configure_filter(struct ieee80211_hw *hw, |
2f01a1f5 | 654 | unsigned int changed, |
3ac64bee | 655 | unsigned int *total,u64 multicast) |
2f01a1f5 | 656 | { |
80301cdc | 657 | struct wl1251 *wl = hw->priv; |
2f01a1f5 | 658 | |
80301cdc | 659 | wl1251_debug(DEBUG_MAC80211, "mac80211 configure filter"); |
2f01a1f5 | 660 | |
80301cdc KV |
661 | *total &= WL1251_SUPPORTED_FILTERS; |
662 | changed &= WL1251_SUPPORTED_FILTERS; | |
2f01a1f5 KV |
663 | |
664 | if (changed == 0) | |
665 | /* no filters which we support changed */ | |
666 | return; | |
667 | ||
668 | /* FIXME: wl->rx_config and wl->rx_filter are not protected */ | |
669 | ||
80301cdc KV |
670 | wl->rx_config = WL1251_DEFAULT_RX_CONFIG; |
671 | wl->rx_filter = WL1251_DEFAULT_RX_FILTER; | |
2f01a1f5 KV |
672 | |
673 | if (*total & FIF_PROMISC_IN_BSS) { | |
674 | wl->rx_config |= CFG_BSSID_FILTER_EN; | |
675 | wl->rx_config |= CFG_RX_ALL_GOOD; | |
676 | } | |
677 | if (*total & FIF_ALLMULTI) | |
678 | /* | |
679 | * CFG_MC_FILTER_EN in rx_config needs to be 0 to receive | |
680 | * all multicast frames | |
681 | */ | |
682 | wl->rx_config &= ~CFG_MC_FILTER_EN; | |
683 | if (*total & FIF_FCSFAIL) | |
684 | wl->rx_filter |= CFG_RX_FCS_ERROR; | |
685 | if (*total & FIF_BCN_PRBRESP_PROMISC) { | |
686 | wl->rx_config &= ~CFG_BSSID_FILTER_EN; | |
687 | wl->rx_config &= ~CFG_SSID_FILTER_EN; | |
688 | } | |
689 | if (*total & FIF_CONTROL) | |
690 | wl->rx_filter |= CFG_RX_CTL_EN; | |
691 | if (*total & FIF_OTHER_BSS) | |
692 | wl->rx_filter &= ~CFG_BSSID_FILTER_EN; | |
693 | ||
694 | /* | |
695 | * FIXME: workqueues need to be properly cancelled on stop(), for | |
696 | * now let's just disable changing the filter settings. They will | |
697 | * be updated any on config(). | |
698 | */ | |
699 | /* schedule_work(&wl->filter_work); */ | |
700 | } | |
701 | ||
702 | /* HW encryption */ | |
80301cdc KV |
703 | static int wl1251_set_key_type(struct wl1251 *wl, |
704 | struct wl1251_cmd_set_keys *key, | |
2f01a1f5 KV |
705 | enum set_key_cmd cmd, |
706 | struct ieee80211_key_conf *mac80211_key, | |
707 | const u8 *addr) | |
708 | { | |
709 | switch (mac80211_key->alg) { | |
710 | case ALG_WEP: | |
711 | if (is_broadcast_ether_addr(addr)) | |
712 | key->key_type = KEY_WEP_DEFAULT; | |
713 | else | |
714 | key->key_type = KEY_WEP_ADDR; | |
715 | ||
716 | mac80211_key->hw_key_idx = mac80211_key->keyidx; | |
717 | break; | |
718 | case ALG_TKIP: | |
719 | if (is_broadcast_ether_addr(addr)) | |
720 | key->key_type = KEY_TKIP_MIC_GROUP; | |
721 | else | |
722 | key->key_type = KEY_TKIP_MIC_PAIRWISE; | |
723 | ||
724 | mac80211_key->hw_key_idx = mac80211_key->keyidx; | |
725 | break; | |
726 | case ALG_CCMP: | |
727 | if (is_broadcast_ether_addr(addr)) | |
728 | key->key_type = KEY_AES_GROUP; | |
729 | else | |
730 | key->key_type = KEY_AES_PAIRWISE; | |
731 | mac80211_key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
732 | break; | |
733 | default: | |
80301cdc | 734 | wl1251_error("Unknown key algo 0x%x", mac80211_key->alg); |
2f01a1f5 KV |
735 | return -EOPNOTSUPP; |
736 | } | |
737 | ||
738 | return 0; | |
739 | } | |
740 | ||
80301cdc | 741 | static int wl1251_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
2f01a1f5 KV |
742 | struct ieee80211_vif *vif, |
743 | struct ieee80211_sta *sta, | |
744 | struct ieee80211_key_conf *key) | |
745 | { | |
80301cdc KV |
746 | struct wl1251 *wl = hw->priv; |
747 | struct wl1251_cmd_set_keys *wl_cmd; | |
2f01a1f5 KV |
748 | const u8 *addr; |
749 | int ret; | |
750 | ||
751 | static const u8 bcast_addr[ETH_ALEN] = | |
752 | { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; | |
753 | ||
80301cdc | 754 | wl1251_debug(DEBUG_MAC80211, "mac80211 set key"); |
2f01a1f5 | 755 | |
ff25839b KV |
756 | wl_cmd = kzalloc(sizeof(*wl_cmd), GFP_KERNEL); |
757 | if (!wl_cmd) { | |
758 | ret = -ENOMEM; | |
759 | goto out; | |
760 | } | |
2f01a1f5 KV |
761 | |
762 | addr = sta ? sta->addr : bcast_addr; | |
763 | ||
80301cdc KV |
764 | wl1251_debug(DEBUG_CRYPT, "CMD: 0x%x", cmd); |
765 | wl1251_dump(DEBUG_CRYPT, "ADDR: ", addr, ETH_ALEN); | |
766 | wl1251_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x", | |
2f01a1f5 | 767 | key->alg, key->keyidx, key->keylen, key->flags); |
80301cdc | 768 | wl1251_dump(DEBUG_CRYPT, "KEY: ", key->key, key->keylen); |
2f01a1f5 | 769 | |
ff25839b KV |
770 | if (is_zero_ether_addr(addr)) { |
771 | /* We dont support TX only encryption */ | |
772 | ret = -EOPNOTSUPP; | |
773 | goto out; | |
774 | } | |
775 | ||
2f01a1f5 KV |
776 | mutex_lock(&wl->mutex); |
777 | ||
80301cdc | 778 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
779 | if (ret < 0) |
780 | goto out_unlock; | |
01d9cfbd | 781 | |
2f01a1f5 KV |
782 | switch (cmd) { |
783 | case SET_KEY: | |
ff25839b | 784 | wl_cmd->key_action = KEY_ADD_OR_REPLACE; |
2f01a1f5 KV |
785 | break; |
786 | case DISABLE_KEY: | |
ff25839b | 787 | wl_cmd->key_action = KEY_REMOVE; |
2f01a1f5 KV |
788 | break; |
789 | default: | |
80301cdc | 790 | wl1251_error("Unsupported key cmd 0x%x", cmd); |
2f01a1f5 KV |
791 | break; |
792 | } | |
793 | ||
80301cdc | 794 | ret = wl1251_set_key_type(wl, wl_cmd, cmd, key, addr); |
2f01a1f5 | 795 | if (ret < 0) { |
80301cdc | 796 | wl1251_error("Set KEY type failed"); |
c5483b71 | 797 | goto out_sleep; |
2f01a1f5 KV |
798 | } |
799 | ||
ff25839b KV |
800 | if (wl_cmd->key_type != KEY_WEP_DEFAULT) |
801 | memcpy(wl_cmd->addr, addr, ETH_ALEN); | |
2f01a1f5 | 802 | |
ff25839b KV |
803 | if ((wl_cmd->key_type == KEY_TKIP_MIC_GROUP) || |
804 | (wl_cmd->key_type == KEY_TKIP_MIC_PAIRWISE)) { | |
2f01a1f5 KV |
805 | /* |
806 | * We get the key in the following form: | |
807 | * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) | |
808 | * but the target is expecting: | |
809 | * TKIP - RX MIC - TX MIC | |
810 | */ | |
ff25839b KV |
811 | memcpy(wl_cmd->key, key->key, 16); |
812 | memcpy(wl_cmd->key + 16, key->key + 24, 8); | |
813 | memcpy(wl_cmd->key + 24, key->key + 16, 8); | |
2f01a1f5 KV |
814 | |
815 | } else { | |
ff25839b | 816 | memcpy(wl_cmd->key, key->key, key->keylen); |
2f01a1f5 | 817 | } |
ff25839b | 818 | wl_cmd->key_size = key->keylen; |
2f01a1f5 | 819 | |
ff25839b KV |
820 | wl_cmd->id = key->keyidx; |
821 | wl_cmd->ssid_profile = 0; | |
2f01a1f5 | 822 | |
80301cdc | 823 | wl1251_dump(DEBUG_CRYPT, "TARGET KEY: ", wl_cmd, sizeof(*wl_cmd)); |
2f01a1f5 | 824 | |
80301cdc | 825 | ret = wl1251_cmd_send(wl, CMD_SET_KEYS, wl_cmd, sizeof(*wl_cmd)); |
ff25839b | 826 | if (ret < 0) { |
80301cdc | 827 | wl1251_warning("could not set keys"); |
c5483b71 | 828 | goto out_sleep; |
2f01a1f5 KV |
829 | } |
830 | ||
c5483b71 | 831 | out_sleep: |
80301cdc | 832 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
833 | |
834 | out_unlock: | |
2f01a1f5 | 835 | mutex_unlock(&wl->mutex); |
ff25839b KV |
836 | |
837 | out: | |
838 | kfree(wl_cmd); | |
839 | ||
2f01a1f5 KV |
840 | return ret; |
841 | } | |
842 | ||
80301cdc | 843 | static int wl1251_build_basic_rates(char *rates) |
2f01a1f5 KV |
844 | { |
845 | u8 index = 0; | |
846 | ||
847 | rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB; | |
848 | rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB; | |
849 | rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB; | |
850 | rates[index++] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB; | |
851 | ||
852 | return index; | |
853 | } | |
854 | ||
80301cdc | 855 | static int wl1251_build_extended_rates(char *rates) |
2f01a1f5 KV |
856 | { |
857 | u8 index = 0; | |
858 | ||
859 | rates[index++] = IEEE80211_OFDM_RATE_6MB; | |
860 | rates[index++] = IEEE80211_OFDM_RATE_9MB; | |
861 | rates[index++] = IEEE80211_OFDM_RATE_12MB; | |
862 | rates[index++] = IEEE80211_OFDM_RATE_18MB; | |
863 | rates[index++] = IEEE80211_OFDM_RATE_24MB; | |
864 | rates[index++] = IEEE80211_OFDM_RATE_36MB; | |
865 | rates[index++] = IEEE80211_OFDM_RATE_48MB; | |
866 | rates[index++] = IEEE80211_OFDM_RATE_54MB; | |
867 | ||
868 | return index; | |
869 | } | |
870 | ||
871 | ||
80301cdc | 872 | static int wl1251_build_probe_req(struct wl1251 *wl, u8 *ssid, size_t ssid_len) |
2f01a1f5 KV |
873 | { |
874 | struct wl12xx_probe_req_template template; | |
875 | struct wl12xx_ie_rates *rates; | |
876 | char *ptr; | |
877 | u16 size; | |
878 | ||
879 | ptr = (char *)&template; | |
880 | size = sizeof(struct ieee80211_header); | |
881 | ||
882 | memset(template.header.da, 0xff, ETH_ALEN); | |
883 | memset(template.header.bssid, 0xff, ETH_ALEN); | |
884 | memcpy(template.header.sa, wl->mac_addr, ETH_ALEN); | |
885 | template.header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ); | |
886 | ||
887 | /* IEs */ | |
888 | /* SSID */ | |
889 | template.ssid.header.id = WLAN_EID_SSID; | |
890 | template.ssid.header.len = ssid_len; | |
891 | if (ssid_len && ssid) | |
892 | memcpy(template.ssid.ssid, ssid, ssid_len); | |
893 | size += sizeof(struct wl12xx_ie_header) + ssid_len; | |
894 | ptr += size; | |
895 | ||
896 | /* Basic Rates */ | |
897 | rates = (struct wl12xx_ie_rates *)ptr; | |
898 | rates->header.id = WLAN_EID_SUPP_RATES; | |
80301cdc | 899 | rates->header.len = wl1251_build_basic_rates(rates->rates); |
2f01a1f5 KV |
900 | size += sizeof(struct wl12xx_ie_header) + rates->header.len; |
901 | ptr += sizeof(struct wl12xx_ie_header) + rates->header.len; | |
902 | ||
903 | /* Extended rates */ | |
904 | rates = (struct wl12xx_ie_rates *)ptr; | |
905 | rates->header.id = WLAN_EID_EXT_SUPP_RATES; | |
80301cdc | 906 | rates->header.len = wl1251_build_extended_rates(rates->rates); |
2f01a1f5 KV |
907 | size += sizeof(struct wl12xx_ie_header) + rates->header.len; |
908 | ||
80301cdc | 909 | wl1251_dump(DEBUG_SCAN, "PROBE REQ: ", &template, size); |
2f01a1f5 | 910 | |
80301cdc | 911 | return wl1251_cmd_template_set(wl, CMD_PROBE_REQ, &template, |
2f01a1f5 KV |
912 | size); |
913 | } | |
914 | ||
80301cdc | 915 | static int wl1251_hw_scan(struct wl1251 *wl, u8 *ssid, size_t len, |
2f01a1f5 KV |
916 | u8 active_scan, u8 high_prio, u8 num_channels, |
917 | u8 probe_requests) | |
918 | { | |
80301cdc | 919 | struct wl1251_cmd_trigger_scan_to *trigger = NULL; |
ff25839b | 920 | struct cmd_scan *params = NULL; |
2f01a1f5 | 921 | int i, ret; |
2f01a1f5 | 922 | u16 scan_options = 0; |
2f01a1f5 KV |
923 | |
924 | if (wl->scanning) | |
925 | return -EINVAL; | |
926 | ||
927 | params = kzalloc(sizeof(*params), GFP_KERNEL); | |
928 | if (!params) | |
929 | return -ENOMEM; | |
930 | ||
931 | params->params.rx_config_options = cpu_to_le32(CFG_RX_ALL_GOOD); | |
932 | params->params.rx_filter_options = | |
933 | cpu_to_le32(CFG_RX_PRSP_EN | CFG_RX_MGMT_EN | CFG_RX_BCN_EN); | |
934 | ||
935 | /* High priority scan */ | |
936 | if (!active_scan) | |
937 | scan_options |= SCAN_PASSIVE; | |
938 | if (high_prio) | |
939 | scan_options |= SCAN_PRIORITY_HIGH; | |
940 | params->params.scan_options = scan_options; | |
941 | ||
942 | params->params.num_channels = num_channels; | |
943 | params->params.num_probe_requests = probe_requests; | |
944 | params->params.tx_rate = cpu_to_le16(1 << 1); /* 2 Mbps */ | |
945 | params->params.tid_trigger = 0; | |
946 | ||
947 | for (i = 0; i < num_channels; i++) { | |
948 | params->channels[i].min_duration = cpu_to_le32(30000); | |
949 | params->channels[i].max_duration = cpu_to_le32(60000); | |
950 | memset(¶ms->channels[i].bssid_lsb, 0xff, 4); | |
951 | memset(¶ms->channels[i].bssid_msb, 0xff, 2); | |
952 | params->channels[i].early_termination = 0; | |
953 | params->channels[i].tx_power_att = 0; | |
954 | params->channels[i].channel = i + 1; | |
955 | memset(params->channels[i].pad, 0, 3); | |
956 | } | |
957 | ||
958 | for (i = num_channels; i < SCAN_MAX_NUM_OF_CHANNELS; i++) | |
959 | memset(¶ms->channels[i], 0, | |
960 | sizeof(struct basic_scan_channel_parameters)); | |
961 | ||
962 | if (len && ssid) { | |
963 | params->params.ssid_len = len; | |
964 | memcpy(params->params.ssid, ssid, len); | |
965 | } else { | |
966 | params->params.ssid_len = 0; | |
967 | memset(params->params.ssid, 0, 32); | |
968 | } | |
969 | ||
80301cdc | 970 | ret = wl1251_build_probe_req(wl, ssid, len); |
2f01a1f5 | 971 | if (ret < 0) { |
80301cdc | 972 | wl1251_error("PROBE request template failed"); |
2f01a1f5 KV |
973 | goto out; |
974 | } | |
975 | ||
ff25839b KV |
976 | trigger = kzalloc(sizeof(*trigger), GFP_KERNEL); |
977 | if (!trigger) | |
978 | goto out; | |
979 | ||
980 | trigger->timeout = 0; | |
981 | ||
80301cdc | 982 | ret = wl1251_cmd_send(wl, CMD_TRIGGER_SCAN_TO, trigger, |
ff25839b | 983 | sizeof(*trigger)); |
2f01a1f5 | 984 | if (ret < 0) { |
80301cdc | 985 | wl1251_error("trigger scan to failed for hw scan"); |
2f01a1f5 KV |
986 | goto out; |
987 | } | |
988 | ||
80301cdc | 989 | wl1251_dump(DEBUG_SCAN, "SCAN: ", params, sizeof(*params)); |
2f01a1f5 KV |
990 | |
991 | wl->scanning = true; | |
992 | ||
80301cdc | 993 | ret = wl1251_cmd_send(wl, CMD_SCAN, params, sizeof(*params)); |
2f01a1f5 | 994 | if (ret < 0) |
80301cdc | 995 | wl1251_error("SCAN failed"); |
2f01a1f5 | 996 | |
0764de64 | 997 | wl1251_mem_read(wl, wl->cmd_box_addr, params, sizeof(*params)); |
2f01a1f5 | 998 | |
ff25839b | 999 | if (params->header.status != CMD_STATUS_SUCCESS) { |
80301cdc | 1000 | wl1251_error("TEST command answer error: %d", |
ff25839b | 1001 | params->header.status); |
2f01a1f5 KV |
1002 | wl->scanning = false; |
1003 | ret = -EIO; | |
1004 | goto out; | |
1005 | } | |
1006 | ||
1007 | out: | |
1008 | kfree(params); | |
1009 | return ret; | |
1010 | ||
1011 | } | |
1012 | ||
80301cdc | 1013 | static int wl1251_op_hw_scan(struct ieee80211_hw *hw, |
2f01a1f5 KV |
1014 | struct cfg80211_scan_request *req) |
1015 | { | |
80301cdc | 1016 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
1017 | int ret; |
1018 | u8 *ssid = NULL; | |
1019 | size_t ssid_len = 0; | |
1020 | ||
80301cdc | 1021 | wl1251_debug(DEBUG_MAC80211, "mac80211 hw scan"); |
2f01a1f5 KV |
1022 | |
1023 | if (req->n_ssids) { | |
1024 | ssid = req->ssids[0].ssid; | |
1025 | ssid_len = req->ssids[0].ssid_len; | |
1026 | } | |
1027 | ||
1028 | mutex_lock(&wl->mutex); | |
c5483b71 | 1029 | |
80301cdc | 1030 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
1031 | if (ret < 0) |
1032 | goto out; | |
01d9cfbd | 1033 | |
80301cdc | 1034 | ret = wl1251_hw_scan(hw->priv, ssid, ssid_len, 1, 0, 13, 3); |
01d9cfbd | 1035 | |
80301cdc | 1036 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
1037 | |
1038 | out: | |
2f01a1f5 KV |
1039 | mutex_unlock(&wl->mutex); |
1040 | ||
1041 | return ret; | |
1042 | } | |
1043 | ||
80301cdc | 1044 | static int wl1251_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value) |
2f01a1f5 | 1045 | { |
80301cdc | 1046 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
1047 | int ret; |
1048 | ||
cee4fd27 KV |
1049 | mutex_lock(&wl->mutex); |
1050 | ||
80301cdc | 1051 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
1052 | if (ret < 0) |
1053 | goto out; | |
01d9cfbd | 1054 | |
80301cdc | 1055 | ret = wl1251_acx_rts_threshold(wl, (u16) value); |
2f01a1f5 | 1056 | if (ret < 0) |
80301cdc | 1057 | wl1251_warning("wl1251_op_set_rts_threshold failed: %d", ret); |
2f01a1f5 | 1058 | |
80301cdc | 1059 | wl1251_ps_elp_sleep(wl); |
01d9cfbd | 1060 | |
c5483b71 | 1061 | out: |
cee4fd27 KV |
1062 | mutex_unlock(&wl->mutex); |
1063 | ||
2f01a1f5 KV |
1064 | return ret; |
1065 | } | |
1066 | ||
80301cdc | 1067 | static void wl1251_op_bss_info_changed(struct ieee80211_hw *hw, |
2f01a1f5 KV |
1068 | struct ieee80211_vif *vif, |
1069 | struct ieee80211_bss_conf *bss_conf, | |
1070 | u32 changed) | |
1071 | { | |
80301cdc KV |
1072 | enum wl1251_cmd_ps_mode mode; |
1073 | struct wl1251 *wl = hw->priv; | |
2f01a1f5 KV |
1074 | struct sk_buff *beacon; |
1075 | int ret; | |
1076 | ||
80301cdc | 1077 | wl1251_debug(DEBUG_MAC80211, "mac80211 bss info changed"); |
2f01a1f5 KV |
1078 | |
1079 | mutex_lock(&wl->mutex); | |
1080 | ||
80301cdc | 1081 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
1082 | if (ret < 0) |
1083 | goto out; | |
01d9cfbd | 1084 | |
2f01a1f5 KV |
1085 | if (changed & BSS_CHANGED_ASSOC) { |
1086 | if (bss_conf->assoc) { | |
e2fd4611 KV |
1087 | wl->beacon_int = bss_conf->beacon_int; |
1088 | wl->dtim_period = bss_conf->dtim_period; | |
1089 | ||
1090 | /* FIXME: call join */ | |
1091 | ||
2f01a1f5 KV |
1092 | wl->aid = bss_conf->aid; |
1093 | ||
80301cdc | 1094 | ret = wl1251_build_ps_poll(wl, wl->aid); |
2f01a1f5 | 1095 | if (ret < 0) |
c5483b71 | 1096 | goto out_sleep; |
2f01a1f5 | 1097 | |
80301cdc | 1098 | ret = wl1251_acx_aid(wl, wl->aid); |
2f01a1f5 | 1099 | if (ret < 0) |
c5483b71 | 1100 | goto out_sleep; |
2f01a1f5 KV |
1101 | |
1102 | /* If we want to go in PSM but we're not there yet */ | |
1103 | if (wl->psm_requested && !wl->psm) { | |
1104 | mode = STATION_POWER_SAVE_MODE; | |
80301cdc | 1105 | ret = wl1251_ps_set_mode(wl, mode); |
2f01a1f5 | 1106 | if (ret < 0) |
c5483b71 | 1107 | goto out_sleep; |
2f01a1f5 | 1108 | } |
e2fd4611 KV |
1109 | } else { |
1110 | /* use defaults when not associated */ | |
1111 | wl->beacon_int = WL1251_DEFAULT_BEACON_INT; | |
1112 | wl->dtim_period = WL1251_DEFAULT_DTIM_PERIOD; | |
2f01a1f5 KV |
1113 | } |
1114 | } | |
1115 | if (changed & BSS_CHANGED_ERP_SLOT) { | |
1116 | if (bss_conf->use_short_slot) | |
80301cdc | 1117 | ret = wl1251_acx_slot(wl, SLOT_TIME_SHORT); |
2f01a1f5 | 1118 | else |
80301cdc | 1119 | ret = wl1251_acx_slot(wl, SLOT_TIME_LONG); |
2f01a1f5 | 1120 | if (ret < 0) { |
80301cdc | 1121 | wl1251_warning("Set slot time failed %d", ret); |
c5483b71 | 1122 | goto out_sleep; |
2f01a1f5 KV |
1123 | } |
1124 | } | |
1125 | ||
1126 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { | |
1127 | if (bss_conf->use_short_preamble) | |
80301cdc | 1128 | wl1251_acx_set_preamble(wl, ACX_PREAMBLE_SHORT); |
2f01a1f5 | 1129 | else |
80301cdc | 1130 | wl1251_acx_set_preamble(wl, ACX_PREAMBLE_LONG); |
2f01a1f5 KV |
1131 | } |
1132 | ||
1133 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { | |
1134 | if (bss_conf->use_cts_prot) | |
80301cdc | 1135 | ret = wl1251_acx_cts_protect(wl, CTSPROTECT_ENABLE); |
2f01a1f5 | 1136 | else |
80301cdc | 1137 | ret = wl1251_acx_cts_protect(wl, CTSPROTECT_DISABLE); |
2f01a1f5 | 1138 | if (ret < 0) { |
80301cdc KV |
1139 | wl1251_warning("Set ctsprotect failed %d", ret); |
1140 | goto out; | |
2f01a1f5 KV |
1141 | } |
1142 | } | |
1143 | ||
1144 | if (changed & BSS_CHANGED_BSSID) { | |
1145 | memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN); | |
1146 | ||
80301cdc | 1147 | ret = wl1251_build_null_data(wl); |
2f01a1f5 KV |
1148 | if (ret < 0) |
1149 | goto out; | |
1150 | ||
1151 | if (wl->bss_type != BSS_TYPE_IBSS) { | |
ae46ae17 KV |
1152 | ret = wl1251_join(wl, wl->bss_type, wl->channel, |
1153 | wl->beacon_int, wl->dtim_period); | |
2f01a1f5 | 1154 | if (ret < 0) |
80301cdc KV |
1155 | goto out_sleep; |
1156 | wl1251_warning("Set ctsprotect failed %d", ret); | |
1157 | goto out_sleep; | |
2f01a1f5 KV |
1158 | } |
1159 | } | |
1160 | ||
1161 | if (changed & BSS_CHANGED_BEACON) { | |
1162 | beacon = ieee80211_beacon_get(hw, vif); | |
80301cdc | 1163 | ret = wl1251_cmd_template_set(wl, CMD_BEACON, beacon->data, |
2f01a1f5 KV |
1164 | beacon->len); |
1165 | ||
1166 | if (ret < 0) { | |
1167 | dev_kfree_skb(beacon); | |
1168 | goto out; | |
1169 | } | |
1170 | ||
80301cdc | 1171 | ret = wl1251_cmd_template_set(wl, CMD_PROBE_RESP, beacon->data, |
2f01a1f5 KV |
1172 | beacon->len); |
1173 | ||
1174 | dev_kfree_skb(beacon); | |
1175 | ||
1176 | if (ret < 0) | |
1177 | goto out; | |
1178 | ||
ae46ae17 KV |
1179 | ret = wl1251_join(wl, wl->bss_type, wl->beacon_int, |
1180 | wl->channel, wl->dtim_period); | |
2f01a1f5 KV |
1181 | |
1182 | if (ret < 0) | |
1183 | goto out; | |
1184 | } | |
1185 | ||
c5483b71 | 1186 | out_sleep: |
80301cdc | 1187 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
1188 | |
1189 | out: | |
2f01a1f5 KV |
1190 | mutex_unlock(&wl->mutex); |
1191 | } | |
1192 | ||
1193 | ||
1194 | /* can't be const, mac80211 writes to this */ | |
80301cdc | 1195 | static struct ieee80211_rate wl1251_rates[] = { |
2f01a1f5 KV |
1196 | { .bitrate = 10, |
1197 | .hw_value = 0x1, | |
1198 | .hw_value_short = 0x1, }, | |
1199 | { .bitrate = 20, | |
1200 | .hw_value = 0x2, | |
1201 | .hw_value_short = 0x2, | |
1202 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
1203 | { .bitrate = 55, | |
1204 | .hw_value = 0x4, | |
1205 | .hw_value_short = 0x4, | |
1206 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
1207 | { .bitrate = 110, | |
1208 | .hw_value = 0x20, | |
1209 | .hw_value_short = 0x20, | |
1210 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
1211 | { .bitrate = 60, | |
1212 | .hw_value = 0x8, | |
1213 | .hw_value_short = 0x8, }, | |
1214 | { .bitrate = 90, | |
1215 | .hw_value = 0x10, | |
1216 | .hw_value_short = 0x10, }, | |
1217 | { .bitrate = 120, | |
1218 | .hw_value = 0x40, | |
1219 | .hw_value_short = 0x40, }, | |
1220 | { .bitrate = 180, | |
1221 | .hw_value = 0x80, | |
1222 | .hw_value_short = 0x80, }, | |
1223 | { .bitrate = 240, | |
1224 | .hw_value = 0x200, | |
1225 | .hw_value_short = 0x200, }, | |
1226 | { .bitrate = 360, | |
1227 | .hw_value = 0x400, | |
1228 | .hw_value_short = 0x400, }, | |
1229 | { .bitrate = 480, | |
1230 | .hw_value = 0x800, | |
1231 | .hw_value_short = 0x800, }, | |
1232 | { .bitrate = 540, | |
1233 | .hw_value = 0x1000, | |
1234 | .hw_value_short = 0x1000, }, | |
1235 | }; | |
1236 | ||
1237 | /* can't be const, mac80211 writes to this */ | |
80301cdc | 1238 | static struct ieee80211_channel wl1251_channels[] = { |
2f01a1f5 KV |
1239 | { .hw_value = 1, .center_freq = 2412}, |
1240 | { .hw_value = 2, .center_freq = 2417}, | |
1241 | { .hw_value = 3, .center_freq = 2422}, | |
1242 | { .hw_value = 4, .center_freq = 2427}, | |
1243 | { .hw_value = 5, .center_freq = 2432}, | |
1244 | { .hw_value = 6, .center_freq = 2437}, | |
1245 | { .hw_value = 7, .center_freq = 2442}, | |
1246 | { .hw_value = 8, .center_freq = 2447}, | |
1247 | { .hw_value = 9, .center_freq = 2452}, | |
1248 | { .hw_value = 10, .center_freq = 2457}, | |
1249 | { .hw_value = 11, .center_freq = 2462}, | |
1250 | { .hw_value = 12, .center_freq = 2467}, | |
1251 | { .hw_value = 13, .center_freq = 2472}, | |
1252 | }; | |
1253 | ||
1254 | /* can't be const, mac80211 writes to this */ | |
80301cdc KV |
1255 | static struct ieee80211_supported_band wl1251_band_2ghz = { |
1256 | .channels = wl1251_channels, | |
1257 | .n_channels = ARRAY_SIZE(wl1251_channels), | |
1258 | .bitrates = wl1251_rates, | |
1259 | .n_bitrates = ARRAY_SIZE(wl1251_rates), | |
2f01a1f5 KV |
1260 | }; |
1261 | ||
80301cdc KV |
1262 | static const struct ieee80211_ops wl1251_ops = { |
1263 | .start = wl1251_op_start, | |
1264 | .stop = wl1251_op_stop, | |
1265 | .add_interface = wl1251_op_add_interface, | |
1266 | .remove_interface = wl1251_op_remove_interface, | |
1267 | .config = wl1251_op_config, | |
1268 | .configure_filter = wl1251_op_configure_filter, | |
1269 | .tx = wl1251_op_tx, | |
1270 | .set_key = wl1251_op_set_key, | |
1271 | .hw_scan = wl1251_op_hw_scan, | |
1272 | .bss_info_changed = wl1251_op_bss_info_changed, | |
1273 | .set_rts_threshold = wl1251_op_set_rts_threshold, | |
2f01a1f5 KV |
1274 | }; |
1275 | ||
80301cdc | 1276 | static int wl1251_register_hw(struct wl1251 *wl) |
2f01a1f5 KV |
1277 | { |
1278 | int ret; | |
1279 | ||
1280 | if (wl->mac80211_registered) | |
1281 | return 0; | |
1282 | ||
1283 | SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr); | |
1284 | ||
1285 | ret = ieee80211_register_hw(wl->hw); | |
1286 | if (ret < 0) { | |
80301cdc | 1287 | wl1251_error("unable to register mac80211 hw: %d", ret); |
2f01a1f5 KV |
1288 | return ret; |
1289 | } | |
1290 | ||
1291 | wl->mac80211_registered = true; | |
1292 | ||
80301cdc | 1293 | wl1251_notice("loaded"); |
2f01a1f5 KV |
1294 | |
1295 | return 0; | |
1296 | } | |
1297 | ||
8e639c06 | 1298 | int wl1251_init_ieee80211(struct wl1251 *wl) |
2f01a1f5 | 1299 | { |
8e639c06 BC |
1300 | int ret; |
1301 | ||
2f01a1f5 KV |
1302 | /* The tx descriptor buffer and the TKIP space */ |
1303 | wl->hw->extra_tx_headroom = sizeof(struct tx_double_buffer_desc) | |
9f2ad4fb | 1304 | + WL1251_TKIP_IV_SPACE; |
2f01a1f5 KV |
1305 | |
1306 | /* unit us */ | |
1307 | /* FIXME: find a proper value */ | |
1308 | wl->hw->channel_change_time = 10000; | |
1309 | ||
1310 | wl->hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
1311 | IEEE80211_HW_NOISE_DBM; | |
1312 | ||
1313 | wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); | |
1314 | wl->hw->wiphy->max_scan_ssids = 1; | |
80301cdc | 1315 | wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl1251_band_2ghz; |
2f01a1f5 | 1316 | |
8e639c06 BC |
1317 | ret = wl1251_register_hw(wl); |
1318 | if (ret) | |
1319 | goto out; | |
2f01a1f5 | 1320 | |
8e639c06 BC |
1321 | wl1251_debugfs_init(wl); |
1322 | wl1251_notice("initialized"); | |
2f01a1f5 | 1323 | |
8e639c06 BC |
1324 | ret = 0; |
1325 | ||
1326 | out: | |
1327 | return ret; | |
1328 | } | |
af8c78eb | 1329 | EXPORT_SYMBOL_GPL(wl1251_init_ieee80211); |
08d9f572 | 1330 | |
8e639c06 | 1331 | struct ieee80211_hw *wl1251_alloc_hw(void) |
2f01a1f5 | 1332 | { |
2f01a1f5 | 1333 | struct ieee80211_hw *hw; |
80301cdc | 1334 | struct wl1251 *wl; |
8e639c06 | 1335 | int i; |
2f01a1f5 KV |
1336 | static const u8 nokia_oui[3] = {0x00, 0x1f, 0xdf}; |
1337 | ||
80301cdc | 1338 | hw = ieee80211_alloc_hw(sizeof(*wl), &wl1251_ops); |
2f01a1f5 | 1339 | if (!hw) { |
80301cdc | 1340 | wl1251_error("could not alloc ieee80211_hw"); |
8e639c06 | 1341 | return ERR_PTR(-ENOMEM); |
2f01a1f5 KV |
1342 | } |
1343 | ||
1344 | wl = hw->priv; | |
1345 | memset(wl, 0, sizeof(*wl)); | |
1346 | ||
1347 | wl->hw = hw; | |
2f01a1f5 KV |
1348 | |
1349 | wl->data_in_count = 0; | |
1350 | ||
1351 | skb_queue_head_init(&wl->tx_queue); | |
1352 | ||
80301cdc KV |
1353 | INIT_WORK(&wl->filter_work, wl1251_filter_work); |
1354 | wl->channel = WL1251_DEFAULT_CHANNEL; | |
2f01a1f5 KV |
1355 | wl->scanning = false; |
1356 | wl->default_key = 0; | |
1357 | wl->listen_int = 1; | |
1358 | wl->rx_counter = 0; | |
1359 | wl->rx_handled = 0; | |
1360 | wl->rx_current_buffer = 0; | |
1361 | wl->rx_last_id = 0; | |
80301cdc KV |
1362 | wl->rx_config = WL1251_DEFAULT_RX_CONFIG; |
1363 | wl->rx_filter = WL1251_DEFAULT_RX_FILTER; | |
2f01a1f5 KV |
1364 | wl->elp = false; |
1365 | wl->psm = 0; | |
1366 | wl->psm_requested = false; | |
1367 | wl->tx_queue_stopped = false; | |
80301cdc | 1368 | wl->power_level = WL1251_DEFAULT_POWER_LEVEL; |
e2fd4611 KV |
1369 | wl->beacon_int = WL1251_DEFAULT_BEACON_INT; |
1370 | wl->dtim_period = WL1251_DEFAULT_DTIM_PERIOD; | |
2f01a1f5 | 1371 | |
2f01a1f5 KV |
1372 | for (i = 0; i < FW_TX_CMPLT_BLOCK_SIZE; i++) |
1373 | wl->tx_frames[i] = NULL; | |
1374 | ||
1375 | wl->next_tx_complete = 0; | |
1376 | ||
0e71bb08 KV |
1377 | INIT_WORK(&wl->irq_work, wl1251_irq_work); |
1378 | INIT_WORK(&wl->tx_work, wl1251_tx_work); | |
1379 | ||
2f01a1f5 KV |
1380 | /* |
1381 | * In case our MAC address is not correctly set, | |
1382 | * we use a random but Nokia MAC. | |
1383 | */ | |
1384 | memcpy(wl->mac_addr, nokia_oui, 3); | |
1385 | get_random_bytes(wl->mac_addr + 3, 3); | |
1386 | ||
80301cdc | 1387 | wl->state = WL1251_STATE_OFF; |
2f01a1f5 KV |
1388 | mutex_init(&wl->mutex); |
1389 | ||
1390 | wl->tx_mgmt_frm_rate = DEFAULT_HW_GEN_TX_RATE; | |
1391 | wl->tx_mgmt_frm_mod = DEFAULT_HW_GEN_MODULATION_TYPE; | |
1392 | ||
4721213f KV |
1393 | wl->rx_descriptor = kmalloc(sizeof(*wl->rx_descriptor), GFP_KERNEL); |
1394 | if (!wl->rx_descriptor) { | |
80301cdc | 1395 | wl1251_error("could not allocate memory for rx descriptor"); |
8e639c06 BC |
1396 | ieee80211_free_hw(hw); |
1397 | return ERR_PTR(-ENOMEM); | |
4721213f KV |
1398 | } |
1399 | ||
8e639c06 | 1400 | return hw; |
2f01a1f5 | 1401 | } |
af8c78eb | 1402 | EXPORT_SYMBOL_GPL(wl1251_alloc_hw); |
2f01a1f5 | 1403 | |
8e639c06 | 1404 | int wl1251_free_hw(struct wl1251 *wl) |
2f01a1f5 | 1405 | { |
2f01a1f5 KV |
1406 | ieee80211_unregister_hw(wl->hw); |
1407 | ||
80301cdc | 1408 | wl1251_debugfs_exit(wl); |
2f01a1f5 | 1409 | |
2f01a1f5 KV |
1410 | kfree(wl->target_mem_map); |
1411 | kfree(wl->data_path); | |
1412 | kfree(wl->fw); | |
1413 | wl->fw = NULL; | |
1414 | kfree(wl->nvs); | |
1415 | wl->nvs = NULL; | |
4721213f KV |
1416 | |
1417 | kfree(wl->rx_descriptor); | |
1418 | wl->rx_descriptor = NULL; | |
1419 | ||
2f01a1f5 KV |
1420 | ieee80211_free_hw(wl->hw); |
1421 | ||
1422 | return 0; | |
1423 | } | |
af8c78eb BC |
1424 | EXPORT_SYMBOL_GPL(wl1251_free_hw); |
1425 | ||
1426 | MODULE_DESCRIPTION("TI wl1251 Wireles LAN Driver Core"); | |
1427 | MODULE_LICENSE("GPL"); | |
b1b0a2b8 | 1428 | MODULE_AUTHOR("Kalle Valo <kalle.valo@nokia.com>"); |