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Commit | Line | Data |
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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> | |
c74ddfd5 | 31 | #include <linux/vmalloc.h> |
5a0e3ad6 | 32 | #include <linux/slab.h> |
2f01a1f5 | 33 | |
13674118 | 34 | #include "wl1251.h" |
2f01a1f5 | 35 | #include "wl12xx_80211.h" |
29d904c4 | 36 | #include "wl1251_reg.h" |
0764de64 | 37 | #include "wl1251_io.h" |
8e639c06 | 38 | #include "wl1251_cmd.h" |
ef2f8d45 | 39 | #include "wl1251_event.h" |
9f2ad4fb | 40 | #include "wl1251_tx.h" |
ef2f8d45 KV |
41 | #include "wl1251_rx.h" |
42 | #include "wl1251_ps.h" | |
43 | #include "wl1251_init.h" | |
44 | #include "wl1251_debugfs.h" | |
0e71bb08 | 45 | #include "wl1251_boot.h" |
2f01a1f5 | 46 | |
b5ed9c1b | 47 | void wl1251_enable_interrupts(struct wl1251 *wl) |
2f01a1f5 | 48 | { |
b5ed9c1b BC |
49 | wl->if_ops->enable_irq(wl); |
50 | } | |
51 | ||
52 | void wl1251_disable_interrupts(struct wl1251 *wl) | |
53 | { | |
54 | wl->if_ops->disable_irq(wl); | |
2f01a1f5 KV |
55 | } |
56 | ||
80301cdc | 57 | static void wl1251_power_off(struct wl1251 *wl) |
2f01a1f5 KV |
58 | { |
59 | wl->set_power(false); | |
60 | } | |
61 | ||
80301cdc | 62 | static void wl1251_power_on(struct wl1251 *wl) |
2f01a1f5 KV |
63 | { |
64 | wl->set_power(true); | |
65 | } | |
66 | ||
80301cdc | 67 | static int wl1251_fetch_firmware(struct wl1251 *wl) |
2f01a1f5 KV |
68 | { |
69 | const struct firmware *fw; | |
6c766f41 | 70 | struct device *dev = wiphy_dev(wl->hw->wiphy); |
2f01a1f5 KV |
71 | int ret; |
72 | ||
0e71bb08 | 73 | ret = request_firmware(&fw, WL1251_FW_NAME, dev); |
2f01a1f5 KV |
74 | |
75 | if (ret < 0) { | |
80301cdc | 76 | wl1251_error("could not get firmware: %d", ret); |
2f01a1f5 KV |
77 | return ret; |
78 | } | |
79 | ||
80 | if (fw->size % 4) { | |
80301cdc | 81 | wl1251_error("firmware size is not multiple of 32 bits: %zu", |
2f01a1f5 KV |
82 | fw->size); |
83 | ret = -EILSEQ; | |
84 | goto out; | |
85 | } | |
86 | ||
87 | wl->fw_len = fw->size; | |
c74ddfd5 | 88 | wl->fw = vmalloc(wl->fw_len); |
2f01a1f5 KV |
89 | |
90 | if (!wl->fw) { | |
80301cdc | 91 | wl1251_error("could not allocate memory for the firmware"); |
2f01a1f5 KV |
92 | ret = -ENOMEM; |
93 | goto out; | |
94 | } | |
95 | ||
96 | memcpy(wl->fw, fw->data, wl->fw_len); | |
97 | ||
98 | ret = 0; | |
99 | ||
100 | out: | |
101 | release_firmware(fw); | |
102 | ||
103 | return ret; | |
104 | } | |
105 | ||
80301cdc | 106 | static int wl1251_fetch_nvs(struct wl1251 *wl) |
2f01a1f5 KV |
107 | { |
108 | const struct firmware *fw; | |
6c766f41 | 109 | struct device *dev = wiphy_dev(wl->hw->wiphy); |
2f01a1f5 KV |
110 | int ret; |
111 | ||
0e71bb08 | 112 | ret = request_firmware(&fw, WL1251_NVS_NAME, dev); |
2f01a1f5 KV |
113 | |
114 | if (ret < 0) { | |
80301cdc | 115 | wl1251_error("could not get nvs file: %d", ret); |
2f01a1f5 KV |
116 | return ret; |
117 | } | |
118 | ||
119 | if (fw->size % 4) { | |
80301cdc | 120 | wl1251_error("nvs size is not multiple of 32 bits: %zu", |
2f01a1f5 KV |
121 | fw->size); |
122 | ret = -EILSEQ; | |
123 | goto out; | |
124 | } | |
125 | ||
126 | wl->nvs_len = fw->size; | |
127 | wl->nvs = kmalloc(wl->nvs_len, GFP_KERNEL); | |
128 | ||
129 | if (!wl->nvs) { | |
80301cdc | 130 | wl1251_error("could not allocate memory for the nvs file"); |
2f01a1f5 KV |
131 | ret = -ENOMEM; |
132 | goto out; | |
133 | } | |
134 | ||
135 | memcpy(wl->nvs, fw->data, wl->nvs_len); | |
136 | ||
137 | ret = 0; | |
138 | ||
139 | out: | |
140 | release_firmware(fw); | |
141 | ||
142 | return ret; | |
143 | } | |
144 | ||
80301cdc | 145 | static void wl1251_fw_wakeup(struct wl1251 *wl) |
2f01a1f5 KV |
146 | { |
147 | u32 elp_reg; | |
148 | ||
149 | elp_reg = ELPCTRL_WAKE_UP; | |
80301cdc KV |
150 | wl1251_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg); |
151 | elp_reg = wl1251_read32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR); | |
2f01a1f5 | 152 | |
05fac682 | 153 | if (!(elp_reg & ELPCTRL_WLAN_READY)) |
80301cdc | 154 | wl1251_warning("WLAN not ready"); |
2f01a1f5 KV |
155 | } |
156 | ||
80301cdc | 157 | static int wl1251_chip_wakeup(struct wl1251 *wl) |
2f01a1f5 KV |
158 | { |
159 | int ret = 0; | |
160 | ||
80301cdc | 161 | wl1251_power_on(wl); |
0e71bb08 | 162 | msleep(WL1251_POWER_ON_SLEEP); |
08d9f572 | 163 | wl->if_ops->reset(wl); |
2f01a1f5 KV |
164 | |
165 | /* We don't need a real memory partition here, because we only want | |
166 | * to use the registers at this point. */ | |
80301cdc | 167 | wl1251_set_partition(wl, |
2f01a1f5 KV |
168 | 0x00000000, |
169 | 0x00000000, | |
170 | REGISTERS_BASE, | |
171 | REGISTERS_DOWN_SIZE); | |
172 | ||
173 | /* ELP module wake up */ | |
80301cdc | 174 | wl1251_fw_wakeup(wl); |
2f01a1f5 KV |
175 | |
176 | /* whal_FwCtrl_BootSm() */ | |
177 | ||
178 | /* 0. read chip id from CHIP_ID */ | |
0e71bb08 | 179 | wl->chip_id = wl1251_reg_read32(wl, CHIP_ID_B); |
2f01a1f5 KV |
180 | |
181 | /* 1. check if chip id is valid */ | |
182 | ||
0e71bb08 | 183 | switch (wl->chip_id) { |
2f01a1f5 | 184 | case CHIP_ID_1251_PG12: |
80301cdc | 185 | wl1251_debug(DEBUG_BOOT, "chip id 0x%x (1251 PG12)", |
0e71bb08 | 186 | wl->chip_id); |
2f01a1f5 | 187 | break; |
2f01a1f5 | 188 | case CHIP_ID_1251_PG11: |
2c759e03 DJW |
189 | wl1251_debug(DEBUG_BOOT, "chip id 0x%x (1251 PG11)", |
190 | wl->chip_id); | |
191 | break; | |
9a493e8f | 192 | case CHIP_ID_1251_PG10: |
2f01a1f5 | 193 | default: |
0e71bb08 | 194 | wl1251_error("unsupported chip id: 0x%x", wl->chip_id); |
2f01a1f5 KV |
195 | ret = -ENODEV; |
196 | goto out; | |
197 | } | |
198 | ||
199 | if (wl->fw == NULL) { | |
80301cdc | 200 | ret = wl1251_fetch_firmware(wl); |
2f01a1f5 KV |
201 | if (ret < 0) |
202 | goto out; | |
203 | } | |
204 | ||
205 | /* No NVS from netlink, try to get it from the filesystem */ | |
206 | if (wl->nvs == NULL) { | |
80301cdc | 207 | ret = wl1251_fetch_nvs(wl); |
2f01a1f5 KV |
208 | if (ret < 0) |
209 | goto out; | |
210 | } | |
211 | ||
212 | out: | |
213 | return ret; | |
214 | } | |
215 | ||
dcea4dbe | 216 | #define WL1251_IRQ_LOOP_COUNT 10 |
0e71bb08 KV |
217 | static void wl1251_irq_work(struct work_struct *work) |
218 | { | |
dcea4dbe | 219 | u32 intr, ctr = WL1251_IRQ_LOOP_COUNT; |
0e71bb08 KV |
220 | struct wl1251 *wl = |
221 | container_of(work, struct wl1251, irq_work); | |
222 | int ret; | |
223 | ||
224 | mutex_lock(&wl->mutex); | |
225 | ||
226 | wl1251_debug(DEBUG_IRQ, "IRQ work"); | |
227 | ||
228 | if (wl->state == WL1251_STATE_OFF) | |
229 | goto out; | |
230 | ||
231 | ret = wl1251_ps_elp_wakeup(wl); | |
232 | if (ret < 0) | |
233 | goto out; | |
234 | ||
235 | wl1251_reg_write32(wl, ACX_REG_INTERRUPT_MASK, WL1251_ACX_INTR_ALL); | |
236 | ||
237 | intr = wl1251_reg_read32(wl, ACX_REG_INTERRUPT_CLEAR); | |
238 | wl1251_debug(DEBUG_IRQ, "intr: 0x%x", intr); | |
239 | ||
dcea4dbe JY |
240 | do { |
241 | if (wl->data_path) { | |
242 | wl->rx_counter = wl1251_mem_read32( | |
243 | wl, wl->data_path->rx_control_addr); | |
244 | ||
245 | /* We handle a frmware bug here */ | |
246 | switch ((wl->rx_counter - wl->rx_handled) & 0xf) { | |
247 | case 0: | |
248 | wl1251_debug(DEBUG_IRQ, | |
249 | "RX: FW and host in sync"); | |
250 | intr &= ~WL1251_ACX_INTR_RX0_DATA; | |
251 | intr &= ~WL1251_ACX_INTR_RX1_DATA; | |
252 | break; | |
253 | case 1: | |
254 | wl1251_debug(DEBUG_IRQ, "RX: FW +1"); | |
255 | intr |= WL1251_ACX_INTR_RX0_DATA; | |
256 | intr &= ~WL1251_ACX_INTR_RX1_DATA; | |
257 | break; | |
258 | case 2: | |
259 | wl1251_debug(DEBUG_IRQ, "RX: FW +2"); | |
260 | intr |= WL1251_ACX_INTR_RX0_DATA; | |
261 | intr |= WL1251_ACX_INTR_RX1_DATA; | |
262 | break; | |
263 | default: | |
264 | wl1251_warning( | |
265 | "RX: FW and host out of sync: %d", | |
266 | wl->rx_counter - wl->rx_handled); | |
267 | break; | |
268 | } | |
269 | ||
270 | wl->rx_handled = wl->rx_counter; | |
271 | ||
272 | wl1251_debug(DEBUG_IRQ, "RX counter: %d", | |
273 | wl->rx_counter); | |
0e71bb08 KV |
274 | } |
275 | ||
dcea4dbe | 276 | intr &= wl->intr_mask; |
0e71bb08 | 277 | |
dcea4dbe JY |
278 | if (intr == 0) { |
279 | wl1251_debug(DEBUG_IRQ, "INTR is 0"); | |
280 | goto out_sleep; | |
281 | } | |
0e71bb08 | 282 | |
dcea4dbe JY |
283 | if (intr & WL1251_ACX_INTR_RX0_DATA) { |
284 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_RX0_DATA"); | |
285 | wl1251_rx(wl); | |
286 | } | |
0e71bb08 | 287 | |
dcea4dbe JY |
288 | if (intr & WL1251_ACX_INTR_RX1_DATA) { |
289 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_RX1_DATA"); | |
290 | wl1251_rx(wl); | |
291 | } | |
0e71bb08 | 292 | |
dcea4dbe JY |
293 | if (intr & WL1251_ACX_INTR_TX_RESULT) { |
294 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_TX_RESULT"); | |
295 | wl1251_tx_complete(wl); | |
296 | } | |
0e71bb08 | 297 | |
dcea4dbe JY |
298 | if (intr & (WL1251_ACX_INTR_EVENT_A | |
299 | WL1251_ACX_INTR_EVENT_B)) { | |
300 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_EVENT (0x%x)", | |
301 | intr); | |
302 | if (intr & WL1251_ACX_INTR_EVENT_A) | |
303 | wl1251_event_handle(wl, 0); | |
304 | else | |
305 | wl1251_event_handle(wl, 1); | |
306 | } | |
0e71bb08 | 307 | |
dcea4dbe JY |
308 | if (intr & WL1251_ACX_INTR_INIT_COMPLETE) |
309 | wl1251_debug(DEBUG_IRQ, | |
310 | "WL1251_ACX_INTR_INIT_COMPLETE"); | |
0e71bb08 | 311 | |
79553f82 JO |
312 | if (--ctr == 0) |
313 | break; | |
0e71bb08 | 314 | |
79553f82 JO |
315 | intr = wl1251_reg_read32(wl, ACX_REG_INTERRUPT_CLEAR); |
316 | } while (intr); | |
0e71bb08 KV |
317 | |
318 | out_sleep: | |
dcea4dbe | 319 | wl1251_reg_write32(wl, ACX_REG_INTERRUPT_MASK, ~(wl->intr_mask)); |
0e71bb08 KV |
320 | wl1251_ps_elp_sleep(wl); |
321 | ||
322 | out: | |
323 | mutex_unlock(&wl->mutex); | |
324 | } | |
325 | ||
ae46ae17 KV |
326 | static int wl1251_join(struct wl1251 *wl, u8 bss_type, u8 channel, |
327 | u16 beacon_interval, u8 dtim_period) | |
328 | { | |
329 | int ret; | |
330 | ||
331 | ret = wl1251_acx_frame_rates(wl, DEFAULT_HW_GEN_TX_RATE, | |
332 | DEFAULT_HW_GEN_MODULATION_TYPE, | |
333 | wl->tx_mgmt_frm_rate, | |
334 | wl->tx_mgmt_frm_mod); | |
335 | if (ret < 0) | |
336 | goto out; | |
337 | ||
338 | ||
339 | ret = wl1251_cmd_join(wl, bss_type, channel, beacon_interval, | |
340 | dtim_period); | |
341 | if (ret < 0) | |
342 | goto out; | |
343 | ||
344 | /* | |
345 | * FIXME: we should wait for JOIN_EVENT_COMPLETE_ID but to simplify | |
346 | * locking we just sleep instead, for now | |
347 | */ | |
348 | msleep(10); | |
349 | ||
350 | out: | |
351 | return ret; | |
352 | } | |
353 | ||
80301cdc | 354 | static void wl1251_filter_work(struct work_struct *work) |
2f01a1f5 | 355 | { |
80301cdc KV |
356 | struct wl1251 *wl = |
357 | container_of(work, struct wl1251, filter_work); | |
2f01a1f5 KV |
358 | int ret; |
359 | ||
360 | mutex_lock(&wl->mutex); | |
361 | ||
80301cdc | 362 | if (wl->state == WL1251_STATE_OFF) |
2f01a1f5 KV |
363 | goto out; |
364 | ||
80301cdc | 365 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
366 | if (ret < 0) |
367 | goto out; | |
01d9cfbd | 368 | |
ae46ae17 KV |
369 | ret = wl1251_join(wl, wl->bss_type, wl->channel, wl->beacon_int, |
370 | wl->dtim_period); | |
2f01a1f5 | 371 | if (ret < 0) |
c5483b71 | 372 | goto out_sleep; |
2f01a1f5 | 373 | |
c5483b71 | 374 | out_sleep: |
80301cdc | 375 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
376 | |
377 | out: | |
2f01a1f5 KV |
378 | mutex_unlock(&wl->mutex); |
379 | } | |
380 | ||
80301cdc | 381 | static int wl1251_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
2f01a1f5 | 382 | { |
80301cdc | 383 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
384 | |
385 | skb_queue_tail(&wl->tx_queue, skb); | |
386 | ||
9f2ad4fb JO |
387 | /* |
388 | * The chip specific setup must run before the first TX packet - | |
389 | * before that, the tx_work will not be initialized! | |
390 | */ | |
391 | ||
16e711f9 | 392 | ieee80211_queue_work(wl->hw, &wl->tx_work); |
2f01a1f5 KV |
393 | |
394 | /* | |
395 | * The workqueue is slow to process the tx_queue and we need stop | |
396 | * the queue here, otherwise the queue will get too long. | |
397 | */ | |
80301cdc | 398 | if (skb_queue_len(&wl->tx_queue) >= WL1251_TX_QUEUE_MAX_LENGTH) { |
d67e2618 | 399 | wl1251_debug(DEBUG_TX, "op_tx: tx_queue full, stop queues"); |
2f01a1f5 KV |
400 | ieee80211_stop_queues(wl->hw); |
401 | ||
402 | /* | |
403 | * FIXME: this is racy, the variable is not properly | |
404 | * protected. Maybe fix this by removing the stupid | |
405 | * variable altogether and checking the real queue state? | |
406 | */ | |
407 | wl->tx_queue_stopped = true; | |
408 | } | |
409 | ||
410 | return NETDEV_TX_OK; | |
411 | } | |
412 | ||
80301cdc | 413 | static int wl1251_op_start(struct ieee80211_hw *hw) |
2f01a1f5 | 414 | { |
80301cdc | 415 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
416 | int ret = 0; |
417 | ||
80301cdc | 418 | wl1251_debug(DEBUG_MAC80211, "mac80211 start"); |
2f01a1f5 KV |
419 | |
420 | mutex_lock(&wl->mutex); | |
421 | ||
80301cdc KV |
422 | if (wl->state != WL1251_STATE_OFF) { |
423 | wl1251_error("cannot start because not in off state: %d", | |
2f01a1f5 KV |
424 | wl->state); |
425 | ret = -EBUSY; | |
426 | goto out; | |
427 | } | |
428 | ||
80301cdc | 429 | ret = wl1251_chip_wakeup(wl); |
2f01a1f5 | 430 | if (ret < 0) |
fe643414 | 431 | goto out; |
2f01a1f5 | 432 | |
0e71bb08 | 433 | ret = wl1251_boot(wl); |
2f01a1f5 KV |
434 | if (ret < 0) |
435 | goto out; | |
436 | ||
0e71bb08 | 437 | ret = wl1251_hw_init(wl); |
2f01a1f5 KV |
438 | if (ret < 0) |
439 | goto out; | |
440 | ||
80301cdc | 441 | ret = wl1251_acx_station_id(wl); |
2f01a1f5 KV |
442 | if (ret < 0) |
443 | goto out; | |
444 | ||
80301cdc | 445 | wl->state = WL1251_STATE_ON; |
2f01a1f5 | 446 | |
0e71bb08 | 447 | wl1251_info("firmware booted (%s)", wl->fw_ver); |
2f01a1f5 KV |
448 | |
449 | out: | |
450 | if (ret < 0) | |
80301cdc | 451 | wl1251_power_off(wl); |
2f01a1f5 KV |
452 | |
453 | mutex_unlock(&wl->mutex); | |
454 | ||
455 | return ret; | |
456 | } | |
457 | ||
80301cdc | 458 | static void wl1251_op_stop(struct ieee80211_hw *hw) |
2f01a1f5 | 459 | { |
80301cdc | 460 | struct wl1251 *wl = hw->priv; |
2f01a1f5 | 461 | |
80301cdc | 462 | wl1251_info("down"); |
2f01a1f5 | 463 | |
80301cdc | 464 | wl1251_debug(DEBUG_MAC80211, "mac80211 stop"); |
2f01a1f5 KV |
465 | |
466 | mutex_lock(&wl->mutex); | |
467 | ||
80301cdc | 468 | WARN_ON(wl->state != WL1251_STATE_ON); |
2f01a1f5 KV |
469 | |
470 | if (wl->scanning) { | |
471 | mutex_unlock(&wl->mutex); | |
472 | ieee80211_scan_completed(wl->hw, true); | |
473 | mutex_lock(&wl->mutex); | |
474 | wl->scanning = false; | |
475 | } | |
476 | ||
80301cdc | 477 | wl->state = WL1251_STATE_OFF; |
2f01a1f5 | 478 | |
80301cdc | 479 | wl1251_disable_interrupts(wl); |
2f01a1f5 KV |
480 | |
481 | mutex_unlock(&wl->mutex); | |
482 | ||
483 | cancel_work_sync(&wl->irq_work); | |
484 | cancel_work_sync(&wl->tx_work); | |
485 | cancel_work_sync(&wl->filter_work); | |
486 | ||
487 | mutex_lock(&wl->mutex); | |
488 | ||
489 | /* let's notify MAC80211 about the remaining pending TX frames */ | |
0e71bb08 | 490 | wl1251_tx_flush(wl); |
80301cdc | 491 | wl1251_power_off(wl); |
2f01a1f5 KV |
492 | |
493 | memset(wl->bssid, 0, ETH_ALEN); | |
494 | wl->listen_int = 1; | |
495 | wl->bss_type = MAX_BSS_TYPE; | |
496 | ||
497 | wl->data_in_count = 0; | |
498 | wl->rx_counter = 0; | |
499 | wl->rx_handled = 0; | |
500 | wl->rx_current_buffer = 0; | |
501 | wl->rx_last_id = 0; | |
502 | wl->next_tx_complete = 0; | |
503 | wl->elp = false; | |
504 | wl->psm = 0; | |
505 | wl->tx_queue_stopped = false; | |
80301cdc | 506 | wl->power_level = WL1251_DEFAULT_POWER_LEVEL; |
9780279c | 507 | wl->channel = WL1251_DEFAULT_CHANNEL; |
2f01a1f5 | 508 | |
80301cdc | 509 | wl1251_debugfs_reset(wl); |
2f01a1f5 KV |
510 | |
511 | mutex_unlock(&wl->mutex); | |
512 | } | |
513 | ||
80301cdc | 514 | static int wl1251_op_add_interface(struct ieee80211_hw *hw, |
1ed32e4f | 515 | struct ieee80211_vif *vif) |
2f01a1f5 | 516 | { |
80301cdc | 517 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
518 | int ret = 0; |
519 | ||
e91d8334 | 520 | wl1251_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM", |
1ed32e4f | 521 | vif->type, vif->addr); |
2f01a1f5 KV |
522 | |
523 | mutex_lock(&wl->mutex); | |
287f6f96 JO |
524 | if (wl->vif) { |
525 | ret = -EBUSY; | |
526 | goto out; | |
527 | } | |
528 | ||
1ed32e4f | 529 | wl->vif = vif; |
2f01a1f5 | 530 | |
1ed32e4f | 531 | switch (vif->type) { |
2f01a1f5 KV |
532 | case NL80211_IFTYPE_STATION: |
533 | wl->bss_type = BSS_TYPE_STA_BSS; | |
534 | break; | |
535 | case NL80211_IFTYPE_ADHOC: | |
536 | wl->bss_type = BSS_TYPE_IBSS; | |
537 | break; | |
538 | default: | |
539 | ret = -EOPNOTSUPP; | |
540 | goto out; | |
541 | } | |
542 | ||
1ed32e4f JB |
543 | if (memcmp(wl->mac_addr, vif->addr, ETH_ALEN)) { |
544 | memcpy(wl->mac_addr, vif->addr, ETH_ALEN); | |
2f01a1f5 | 545 | SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr); |
80301cdc | 546 | ret = wl1251_acx_station_id(wl); |
2f01a1f5 KV |
547 | if (ret < 0) |
548 | goto out; | |
549 | } | |
550 | ||
551 | out: | |
552 | mutex_unlock(&wl->mutex); | |
553 | return ret; | |
554 | } | |
555 | ||
80301cdc | 556 | static void wl1251_op_remove_interface(struct ieee80211_hw *hw, |
1ed32e4f | 557 | struct ieee80211_vif *vif) |
2f01a1f5 | 558 | { |
287f6f96 JO |
559 | struct wl1251 *wl = hw->priv; |
560 | ||
561 | mutex_lock(&wl->mutex); | |
80301cdc | 562 | wl1251_debug(DEBUG_MAC80211, "mac80211 remove interface"); |
287f6f96 JO |
563 | wl->vif = NULL; |
564 | mutex_unlock(&wl->mutex); | |
2f01a1f5 KV |
565 | } |
566 | ||
8f8ff916 KV |
567 | static int wl1251_build_qos_null_data(struct wl1251 *wl) |
568 | { | |
569 | struct ieee80211_qos_hdr template; | |
570 | ||
571 | memset(&template, 0, sizeof(template)); | |
572 | ||
573 | memcpy(template.addr1, wl->bssid, ETH_ALEN); | |
574 | memcpy(template.addr2, wl->mac_addr, ETH_ALEN); | |
575 | memcpy(template.addr3, wl->bssid, ETH_ALEN); | |
576 | ||
577 | template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | | |
578 | IEEE80211_STYPE_QOS_NULLFUNC | | |
579 | IEEE80211_FCTL_TODS); | |
580 | ||
581 | /* FIXME: not sure what priority to use here */ | |
582 | template.qos_ctrl = cpu_to_le16(0); | |
583 | ||
584 | return wl1251_cmd_template_set(wl, CMD_QOS_NULL_DATA, &template, | |
585 | sizeof(template)); | |
586 | } | |
587 | ||
80301cdc | 588 | static int wl1251_op_config(struct ieee80211_hw *hw, u32 changed) |
2f01a1f5 | 589 | { |
80301cdc | 590 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
591 | struct ieee80211_conf *conf = &hw->conf; |
592 | int channel, ret = 0; | |
593 | ||
594 | channel = ieee80211_frequency_to_channel(conf->channel->center_freq); | |
595 | ||
80301cdc | 596 | wl1251_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d", |
2f01a1f5 KV |
597 | channel, |
598 | conf->flags & IEEE80211_CONF_PS ? "on" : "off", | |
599 | conf->power_level); | |
600 | ||
601 | mutex_lock(&wl->mutex); | |
602 | ||
80301cdc | 603 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
604 | if (ret < 0) |
605 | goto out; | |
01d9cfbd | 606 | |
2f01a1f5 | 607 | if (channel != wl->channel) { |
fe9a9846 KV |
608 | wl->channel = channel; |
609 | ||
ae46ae17 KV |
610 | ret = wl1251_join(wl, wl->bss_type, wl->channel, |
611 | wl->beacon_int, wl->dtim_period); | |
2f01a1f5 | 612 | if (ret < 0) |
c5483b71 | 613 | goto out_sleep; |
2f01a1f5 KV |
614 | } |
615 | ||
2f01a1f5 | 616 | if (conf->flags & IEEE80211_CONF_PS && !wl->psm_requested) { |
47af3fe3 | 617 | wl1251_debug(DEBUG_PSM, "psm enabled"); |
2f01a1f5 KV |
618 | |
619 | wl->psm_requested = true; | |
620 | ||
56007a02 JB |
621 | wl->dtim_period = conf->ps_dtim_period; |
622 | ||
623 | ret = wl1251_acx_wr_tbtt_and_dtim(wl, wl->beacon_int, | |
624 | wl->dtim_period); | |
625 | ||
2f01a1f5 | 626 | /* |
56007a02 | 627 | * mac80211 enables PSM only if we're already associated. |
2f01a1f5 | 628 | */ |
80301cdc | 629 | ret = wl1251_ps_set_mode(wl, STATION_POWER_SAVE_MODE); |
478fdf2b KV |
630 | if (ret < 0) |
631 | goto out_sleep; | |
2f01a1f5 KV |
632 | } else if (!(conf->flags & IEEE80211_CONF_PS) && |
633 | wl->psm_requested) { | |
47af3fe3 | 634 | wl1251_debug(DEBUG_PSM, "psm disabled"); |
2f01a1f5 KV |
635 | |
636 | wl->psm_requested = false; | |
637 | ||
478fdf2b | 638 | if (wl->psm) { |
80301cdc | 639 | ret = wl1251_ps_set_mode(wl, STATION_ACTIVE_MODE); |
478fdf2b KV |
640 | if (ret < 0) |
641 | goto out_sleep; | |
642 | } | |
2f01a1f5 KV |
643 | } |
644 | ||
645 | if (conf->power_level != wl->power_level) { | |
80301cdc | 646 | ret = wl1251_acx_tx_power(wl, conf->power_level); |
2f01a1f5 | 647 | if (ret < 0) |
478fdf2b | 648 | goto out_sleep; |
2f01a1f5 KV |
649 | |
650 | wl->power_level = conf->power_level; | |
651 | } | |
652 | ||
c5483b71 | 653 | out_sleep: |
80301cdc | 654 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
655 | |
656 | out: | |
2f01a1f5 | 657 | mutex_unlock(&wl->mutex); |
c5483b71 | 658 | |
2f01a1f5 KV |
659 | return ret; |
660 | } | |
661 | ||
80301cdc | 662 | #define WL1251_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \ |
2f01a1f5 KV |
663 | FIF_ALLMULTI | \ |
664 | FIF_FCSFAIL | \ | |
665 | FIF_BCN_PRBRESP_PROMISC | \ | |
666 | FIF_CONTROL | \ | |
667 | FIF_OTHER_BSS) | |
668 | ||
80301cdc | 669 | static void wl1251_op_configure_filter(struct ieee80211_hw *hw, |
2f01a1f5 | 670 | unsigned int changed, |
3ac64bee | 671 | unsigned int *total,u64 multicast) |
2f01a1f5 | 672 | { |
80301cdc | 673 | struct wl1251 *wl = hw->priv; |
2f01a1f5 | 674 | |
80301cdc | 675 | wl1251_debug(DEBUG_MAC80211, "mac80211 configure filter"); |
2f01a1f5 | 676 | |
80301cdc KV |
677 | *total &= WL1251_SUPPORTED_FILTERS; |
678 | changed &= WL1251_SUPPORTED_FILTERS; | |
2f01a1f5 KV |
679 | |
680 | if (changed == 0) | |
681 | /* no filters which we support changed */ | |
682 | return; | |
683 | ||
684 | /* FIXME: wl->rx_config and wl->rx_filter are not protected */ | |
685 | ||
80301cdc KV |
686 | wl->rx_config = WL1251_DEFAULT_RX_CONFIG; |
687 | wl->rx_filter = WL1251_DEFAULT_RX_FILTER; | |
2f01a1f5 KV |
688 | |
689 | if (*total & FIF_PROMISC_IN_BSS) { | |
690 | wl->rx_config |= CFG_BSSID_FILTER_EN; | |
691 | wl->rx_config |= CFG_RX_ALL_GOOD; | |
692 | } | |
693 | if (*total & FIF_ALLMULTI) | |
694 | /* | |
695 | * CFG_MC_FILTER_EN in rx_config needs to be 0 to receive | |
696 | * all multicast frames | |
697 | */ | |
698 | wl->rx_config &= ~CFG_MC_FILTER_EN; | |
699 | if (*total & FIF_FCSFAIL) | |
700 | wl->rx_filter |= CFG_RX_FCS_ERROR; | |
701 | if (*total & FIF_BCN_PRBRESP_PROMISC) { | |
702 | wl->rx_config &= ~CFG_BSSID_FILTER_EN; | |
703 | wl->rx_config &= ~CFG_SSID_FILTER_EN; | |
704 | } | |
705 | if (*total & FIF_CONTROL) | |
706 | wl->rx_filter |= CFG_RX_CTL_EN; | |
707 | if (*total & FIF_OTHER_BSS) | |
708 | wl->rx_filter &= ~CFG_BSSID_FILTER_EN; | |
709 | ||
710 | /* | |
711 | * FIXME: workqueues need to be properly cancelled on stop(), for | |
712 | * now let's just disable changing the filter settings. They will | |
713 | * be updated any on config(). | |
714 | */ | |
715 | /* schedule_work(&wl->filter_work); */ | |
716 | } | |
717 | ||
718 | /* HW encryption */ | |
80301cdc KV |
719 | static int wl1251_set_key_type(struct wl1251 *wl, |
720 | struct wl1251_cmd_set_keys *key, | |
2f01a1f5 KV |
721 | enum set_key_cmd cmd, |
722 | struct ieee80211_key_conf *mac80211_key, | |
723 | const u8 *addr) | |
724 | { | |
725 | switch (mac80211_key->alg) { | |
726 | case ALG_WEP: | |
727 | if (is_broadcast_ether_addr(addr)) | |
728 | key->key_type = KEY_WEP_DEFAULT; | |
729 | else | |
730 | key->key_type = KEY_WEP_ADDR; | |
731 | ||
732 | mac80211_key->hw_key_idx = mac80211_key->keyidx; | |
733 | break; | |
734 | case ALG_TKIP: | |
735 | if (is_broadcast_ether_addr(addr)) | |
736 | key->key_type = KEY_TKIP_MIC_GROUP; | |
737 | else | |
738 | key->key_type = KEY_TKIP_MIC_PAIRWISE; | |
739 | ||
740 | mac80211_key->hw_key_idx = mac80211_key->keyidx; | |
741 | break; | |
742 | case ALG_CCMP: | |
743 | if (is_broadcast_ether_addr(addr)) | |
744 | key->key_type = KEY_AES_GROUP; | |
745 | else | |
746 | key->key_type = KEY_AES_PAIRWISE; | |
747 | mac80211_key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
748 | break; | |
749 | default: | |
80301cdc | 750 | wl1251_error("Unknown key algo 0x%x", mac80211_key->alg); |
2f01a1f5 KV |
751 | return -EOPNOTSUPP; |
752 | } | |
753 | ||
754 | return 0; | |
755 | } | |
756 | ||
80301cdc | 757 | static int wl1251_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
2f01a1f5 KV |
758 | struct ieee80211_vif *vif, |
759 | struct ieee80211_sta *sta, | |
760 | struct ieee80211_key_conf *key) | |
761 | { | |
80301cdc KV |
762 | struct wl1251 *wl = hw->priv; |
763 | struct wl1251_cmd_set_keys *wl_cmd; | |
2f01a1f5 KV |
764 | const u8 *addr; |
765 | int ret; | |
766 | ||
767 | static const u8 bcast_addr[ETH_ALEN] = | |
768 | { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; | |
769 | ||
80301cdc | 770 | wl1251_debug(DEBUG_MAC80211, "mac80211 set key"); |
2f01a1f5 | 771 | |
ff25839b KV |
772 | wl_cmd = kzalloc(sizeof(*wl_cmd), GFP_KERNEL); |
773 | if (!wl_cmd) { | |
774 | ret = -ENOMEM; | |
775 | goto out; | |
776 | } | |
2f01a1f5 KV |
777 | |
778 | addr = sta ? sta->addr : bcast_addr; | |
779 | ||
80301cdc KV |
780 | wl1251_debug(DEBUG_CRYPT, "CMD: 0x%x", cmd); |
781 | wl1251_dump(DEBUG_CRYPT, "ADDR: ", addr, ETH_ALEN); | |
782 | wl1251_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x", | |
2f01a1f5 | 783 | key->alg, key->keyidx, key->keylen, key->flags); |
80301cdc | 784 | wl1251_dump(DEBUG_CRYPT, "KEY: ", key->key, key->keylen); |
2f01a1f5 | 785 | |
ff25839b KV |
786 | if (is_zero_ether_addr(addr)) { |
787 | /* We dont support TX only encryption */ | |
788 | ret = -EOPNOTSUPP; | |
789 | goto out; | |
790 | } | |
791 | ||
2f01a1f5 KV |
792 | mutex_lock(&wl->mutex); |
793 | ||
80301cdc | 794 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
795 | if (ret < 0) |
796 | goto out_unlock; | |
01d9cfbd | 797 | |
2f01a1f5 KV |
798 | switch (cmd) { |
799 | case SET_KEY: | |
ff25839b | 800 | wl_cmd->key_action = KEY_ADD_OR_REPLACE; |
2f01a1f5 KV |
801 | break; |
802 | case DISABLE_KEY: | |
ff25839b | 803 | wl_cmd->key_action = KEY_REMOVE; |
2f01a1f5 KV |
804 | break; |
805 | default: | |
80301cdc | 806 | wl1251_error("Unsupported key cmd 0x%x", cmd); |
2f01a1f5 KV |
807 | break; |
808 | } | |
809 | ||
80301cdc | 810 | ret = wl1251_set_key_type(wl, wl_cmd, cmd, key, addr); |
2f01a1f5 | 811 | if (ret < 0) { |
80301cdc | 812 | wl1251_error("Set KEY type failed"); |
c5483b71 | 813 | goto out_sleep; |
2f01a1f5 KV |
814 | } |
815 | ||
ff25839b KV |
816 | if (wl_cmd->key_type != KEY_WEP_DEFAULT) |
817 | memcpy(wl_cmd->addr, addr, ETH_ALEN); | |
2f01a1f5 | 818 | |
ff25839b KV |
819 | if ((wl_cmd->key_type == KEY_TKIP_MIC_GROUP) || |
820 | (wl_cmd->key_type == KEY_TKIP_MIC_PAIRWISE)) { | |
2f01a1f5 KV |
821 | /* |
822 | * We get the key in the following form: | |
823 | * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) | |
824 | * but the target is expecting: | |
825 | * TKIP - RX MIC - TX MIC | |
826 | */ | |
ff25839b KV |
827 | memcpy(wl_cmd->key, key->key, 16); |
828 | memcpy(wl_cmd->key + 16, key->key + 24, 8); | |
829 | memcpy(wl_cmd->key + 24, key->key + 16, 8); | |
2f01a1f5 KV |
830 | |
831 | } else { | |
ff25839b | 832 | memcpy(wl_cmd->key, key->key, key->keylen); |
2f01a1f5 | 833 | } |
ff25839b | 834 | wl_cmd->key_size = key->keylen; |
2f01a1f5 | 835 | |
ff25839b KV |
836 | wl_cmd->id = key->keyidx; |
837 | wl_cmd->ssid_profile = 0; | |
2f01a1f5 | 838 | |
80301cdc | 839 | wl1251_dump(DEBUG_CRYPT, "TARGET KEY: ", wl_cmd, sizeof(*wl_cmd)); |
2f01a1f5 | 840 | |
80301cdc | 841 | ret = wl1251_cmd_send(wl, CMD_SET_KEYS, wl_cmd, sizeof(*wl_cmd)); |
ff25839b | 842 | if (ret < 0) { |
80301cdc | 843 | wl1251_warning("could not set keys"); |
c5483b71 | 844 | goto out_sleep; |
2f01a1f5 KV |
845 | } |
846 | ||
c5483b71 | 847 | out_sleep: |
80301cdc | 848 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
849 | |
850 | out_unlock: | |
2f01a1f5 | 851 | mutex_unlock(&wl->mutex); |
ff25839b KV |
852 | |
853 | out: | |
854 | kfree(wl_cmd); | |
855 | ||
2f01a1f5 KV |
856 | return ret; |
857 | } | |
858 | ||
80301cdc | 859 | static int wl1251_op_hw_scan(struct ieee80211_hw *hw, |
2f01a1f5 KV |
860 | struct cfg80211_scan_request *req) |
861 | { | |
80301cdc | 862 | struct wl1251 *wl = hw->priv; |
e477c56e | 863 | struct sk_buff *skb; |
2f01a1f5 | 864 | size_t ssid_len = 0; |
3a98c30f KV |
865 | u8 *ssid = NULL; |
866 | int ret; | |
2f01a1f5 | 867 | |
80301cdc | 868 | wl1251_debug(DEBUG_MAC80211, "mac80211 hw scan"); |
2f01a1f5 KV |
869 | |
870 | if (req->n_ssids) { | |
871 | ssid = req->ssids[0].ssid; | |
872 | ssid_len = req->ssids[0].ssid_len; | |
873 | } | |
874 | ||
875 | mutex_lock(&wl->mutex); | |
c5483b71 | 876 | |
3a98c30f KV |
877 | if (wl->scanning) { |
878 | wl1251_debug(DEBUG_SCAN, "scan already in progress"); | |
879 | ret = -EINVAL; | |
880 | goto out; | |
881 | } | |
882 | ||
80301cdc | 883 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
884 | if (ret < 0) |
885 | goto out; | |
01d9cfbd | 886 | |
e477c56e KV |
887 | skb = ieee80211_probereq_get(wl->hw, wl->vif, ssid, ssid_len, |
888 | req->ie, req->ie_len); | |
889 | if (!skb) { | |
890 | ret = -ENOMEM; | |
891 | goto out; | |
892 | } | |
893 | ||
894 | ret = wl1251_cmd_template_set(wl, CMD_PROBE_REQ, skb->data, | |
895 | skb->len); | |
896 | dev_kfree_skb(skb); | |
3a98c30f | 897 | if (ret < 0) |
e477c56e | 898 | goto out_sleep; |
3a98c30f KV |
899 | |
900 | ret = wl1251_cmd_trigger_scan_to(wl, 0); | |
901 | if (ret < 0) | |
902 | goto out_sleep; | |
903 | ||
904 | wl->scanning = true; | |
01d9cfbd | 905 | |
dc52f0a8 KV |
906 | ret = wl1251_cmd_scan(wl, ssid, ssid_len, req->channels, |
907 | req->n_channels, WL1251_SCAN_NUM_PROBES); | |
3a98c30f KV |
908 | if (ret < 0) { |
909 | wl->scanning = false; | |
910 | goto out_sleep; | |
911 | } | |
912 | ||
913 | out_sleep: | |
80301cdc | 914 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
915 | |
916 | out: | |
2f01a1f5 KV |
917 | mutex_unlock(&wl->mutex); |
918 | ||
919 | return ret; | |
920 | } | |
921 | ||
80301cdc | 922 | static int wl1251_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value) |
2f01a1f5 | 923 | { |
80301cdc | 924 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
925 | int ret; |
926 | ||
cee4fd27 KV |
927 | mutex_lock(&wl->mutex); |
928 | ||
80301cdc | 929 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
930 | if (ret < 0) |
931 | goto out; | |
01d9cfbd | 932 | |
80301cdc | 933 | ret = wl1251_acx_rts_threshold(wl, (u16) value); |
2f01a1f5 | 934 | if (ret < 0) |
80301cdc | 935 | wl1251_warning("wl1251_op_set_rts_threshold failed: %d", ret); |
2f01a1f5 | 936 | |
80301cdc | 937 | wl1251_ps_elp_sleep(wl); |
01d9cfbd | 938 | |
c5483b71 | 939 | out: |
cee4fd27 KV |
940 | mutex_unlock(&wl->mutex); |
941 | ||
2f01a1f5 KV |
942 | return ret; |
943 | } | |
944 | ||
80301cdc | 945 | static void wl1251_op_bss_info_changed(struct ieee80211_hw *hw, |
2f01a1f5 KV |
946 | struct ieee80211_vif *vif, |
947 | struct ieee80211_bss_conf *bss_conf, | |
948 | u32 changed) | |
949 | { | |
80301cdc | 950 | struct wl1251 *wl = hw->priv; |
f7f70579 | 951 | struct sk_buff *beacon, *skb; |
2f01a1f5 KV |
952 | int ret; |
953 | ||
80301cdc | 954 | wl1251_debug(DEBUG_MAC80211, "mac80211 bss info changed"); |
2f01a1f5 KV |
955 | |
956 | mutex_lock(&wl->mutex); | |
957 | ||
80301cdc | 958 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
959 | if (ret < 0) |
960 | goto out; | |
01d9cfbd | 961 | |
de8df1ea KV |
962 | if (changed & BSS_CHANGED_BSSID) { |
963 | memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN); | |
964 | ||
f7f70579 KV |
965 | skb = ieee80211_nullfunc_get(wl->hw, wl->vif); |
966 | if (!skb) | |
967 | goto out_sleep; | |
968 | ||
969 | ret = wl1251_cmd_template_set(wl, CMD_NULL_DATA, | |
970 | skb->data, skb->len); | |
971 | dev_kfree_skb(skb); | |
de8df1ea | 972 | if (ret < 0) |
80a112ff | 973 | goto out_sleep; |
de8df1ea | 974 | |
8f8ff916 KV |
975 | ret = wl1251_build_qos_null_data(wl); |
976 | if (ret < 0) | |
977 | goto out; | |
978 | ||
de8df1ea KV |
979 | if (wl->bss_type != BSS_TYPE_IBSS) { |
980 | ret = wl1251_join(wl, wl->bss_type, wl->channel, | |
981 | wl->beacon_int, wl->dtim_period); | |
982 | if (ret < 0) | |
983 | goto out_sleep; | |
984 | } | |
985 | } | |
986 | ||
2f01a1f5 KV |
987 | if (changed & BSS_CHANGED_ASSOC) { |
988 | if (bss_conf->assoc) { | |
e2fd4611 | 989 | wl->beacon_int = bss_conf->beacon_int; |
2f01a1f5 | 990 | |
f7f70579 KV |
991 | skb = ieee80211_pspoll_get(wl->hw, wl->vif); |
992 | if (!skb) | |
993 | goto out_sleep; | |
994 | ||
995 | ret = wl1251_cmd_template_set(wl, CMD_PS_POLL, | |
996 | skb->data, | |
997 | skb->len); | |
998 | dev_kfree_skb(skb); | |
2f01a1f5 | 999 | if (ret < 0) |
c5483b71 | 1000 | goto out_sleep; |
2f01a1f5 | 1001 | |
56007a02 | 1002 | ret = wl1251_acx_aid(wl, bss_conf->aid); |
2f01a1f5 | 1003 | if (ret < 0) |
c5483b71 | 1004 | goto out_sleep; |
e2fd4611 KV |
1005 | } else { |
1006 | /* use defaults when not associated */ | |
1007 | wl->beacon_int = WL1251_DEFAULT_BEACON_INT; | |
1008 | wl->dtim_period = WL1251_DEFAULT_DTIM_PERIOD; | |
2f01a1f5 KV |
1009 | } |
1010 | } | |
1011 | if (changed & BSS_CHANGED_ERP_SLOT) { | |
1012 | if (bss_conf->use_short_slot) | |
80301cdc | 1013 | ret = wl1251_acx_slot(wl, SLOT_TIME_SHORT); |
2f01a1f5 | 1014 | else |
80301cdc | 1015 | ret = wl1251_acx_slot(wl, SLOT_TIME_LONG); |
2f01a1f5 | 1016 | if (ret < 0) { |
80301cdc | 1017 | wl1251_warning("Set slot time failed %d", ret); |
c5483b71 | 1018 | goto out_sleep; |
2f01a1f5 KV |
1019 | } |
1020 | } | |
1021 | ||
1022 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { | |
1023 | if (bss_conf->use_short_preamble) | |
80301cdc | 1024 | wl1251_acx_set_preamble(wl, ACX_PREAMBLE_SHORT); |
2f01a1f5 | 1025 | else |
80301cdc | 1026 | wl1251_acx_set_preamble(wl, ACX_PREAMBLE_LONG); |
2f01a1f5 KV |
1027 | } |
1028 | ||
1029 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { | |
1030 | if (bss_conf->use_cts_prot) | |
80301cdc | 1031 | ret = wl1251_acx_cts_protect(wl, CTSPROTECT_ENABLE); |
2f01a1f5 | 1032 | else |
80301cdc | 1033 | ret = wl1251_acx_cts_protect(wl, CTSPROTECT_DISABLE); |
2f01a1f5 | 1034 | if (ret < 0) { |
80301cdc | 1035 | wl1251_warning("Set ctsprotect failed %d", ret); |
80a112ff | 1036 | goto out_sleep; |
2f01a1f5 KV |
1037 | } |
1038 | } | |
1039 | ||
2f01a1f5 KV |
1040 | if (changed & BSS_CHANGED_BEACON) { |
1041 | beacon = ieee80211_beacon_get(hw, vif); | |
80301cdc | 1042 | ret = wl1251_cmd_template_set(wl, CMD_BEACON, beacon->data, |
2f01a1f5 KV |
1043 | beacon->len); |
1044 | ||
1045 | if (ret < 0) { | |
1046 | dev_kfree_skb(beacon); | |
80a112ff | 1047 | goto out_sleep; |
2f01a1f5 KV |
1048 | } |
1049 | ||
80301cdc | 1050 | ret = wl1251_cmd_template_set(wl, CMD_PROBE_RESP, beacon->data, |
2f01a1f5 KV |
1051 | beacon->len); |
1052 | ||
1053 | dev_kfree_skb(beacon); | |
1054 | ||
1055 | if (ret < 0) | |
80a112ff | 1056 | goto out_sleep; |
2f01a1f5 | 1057 | |
ae46ae17 KV |
1058 | ret = wl1251_join(wl, wl->bss_type, wl->beacon_int, |
1059 | wl->channel, wl->dtim_period); | |
2f01a1f5 KV |
1060 | |
1061 | if (ret < 0) | |
80a112ff | 1062 | goto out_sleep; |
2f01a1f5 KV |
1063 | } |
1064 | ||
c5483b71 | 1065 | out_sleep: |
80301cdc | 1066 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
1067 | |
1068 | out: | |
2f01a1f5 KV |
1069 | mutex_unlock(&wl->mutex); |
1070 | } | |
1071 | ||
1072 | ||
1073 | /* can't be const, mac80211 writes to this */ | |
80301cdc | 1074 | static struct ieee80211_rate wl1251_rates[] = { |
2f01a1f5 KV |
1075 | { .bitrate = 10, |
1076 | .hw_value = 0x1, | |
1077 | .hw_value_short = 0x1, }, | |
1078 | { .bitrate = 20, | |
1079 | .hw_value = 0x2, | |
1080 | .hw_value_short = 0x2, | |
1081 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
1082 | { .bitrate = 55, | |
1083 | .hw_value = 0x4, | |
1084 | .hw_value_short = 0x4, | |
1085 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
1086 | { .bitrate = 110, | |
1087 | .hw_value = 0x20, | |
1088 | .hw_value_short = 0x20, | |
1089 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
1090 | { .bitrate = 60, | |
1091 | .hw_value = 0x8, | |
1092 | .hw_value_short = 0x8, }, | |
1093 | { .bitrate = 90, | |
1094 | .hw_value = 0x10, | |
1095 | .hw_value_short = 0x10, }, | |
1096 | { .bitrate = 120, | |
1097 | .hw_value = 0x40, | |
1098 | .hw_value_short = 0x40, }, | |
1099 | { .bitrate = 180, | |
1100 | .hw_value = 0x80, | |
1101 | .hw_value_short = 0x80, }, | |
1102 | { .bitrate = 240, | |
1103 | .hw_value = 0x200, | |
1104 | .hw_value_short = 0x200, }, | |
1105 | { .bitrate = 360, | |
1106 | .hw_value = 0x400, | |
1107 | .hw_value_short = 0x400, }, | |
1108 | { .bitrate = 480, | |
1109 | .hw_value = 0x800, | |
1110 | .hw_value_short = 0x800, }, | |
1111 | { .bitrate = 540, | |
1112 | .hw_value = 0x1000, | |
1113 | .hw_value_short = 0x1000, }, | |
1114 | }; | |
1115 | ||
1116 | /* can't be const, mac80211 writes to this */ | |
80301cdc | 1117 | static struct ieee80211_channel wl1251_channels[] = { |
2f01a1f5 KV |
1118 | { .hw_value = 1, .center_freq = 2412}, |
1119 | { .hw_value = 2, .center_freq = 2417}, | |
1120 | { .hw_value = 3, .center_freq = 2422}, | |
1121 | { .hw_value = 4, .center_freq = 2427}, | |
1122 | { .hw_value = 5, .center_freq = 2432}, | |
1123 | { .hw_value = 6, .center_freq = 2437}, | |
1124 | { .hw_value = 7, .center_freq = 2442}, | |
1125 | { .hw_value = 8, .center_freq = 2447}, | |
1126 | { .hw_value = 9, .center_freq = 2452}, | |
1127 | { .hw_value = 10, .center_freq = 2457}, | |
1128 | { .hw_value = 11, .center_freq = 2462}, | |
1129 | { .hw_value = 12, .center_freq = 2467}, | |
1130 | { .hw_value = 13, .center_freq = 2472}, | |
1131 | }; | |
1132 | ||
86dff7a7 KV |
1133 | static int wl1251_op_conf_tx(struct ieee80211_hw *hw, u16 queue, |
1134 | const struct ieee80211_tx_queue_params *params) | |
1135 | { | |
4ff6ffa1 | 1136 | enum wl1251_acx_ps_scheme ps_scheme; |
86dff7a7 KV |
1137 | struct wl1251 *wl = hw->priv; |
1138 | int ret; | |
1139 | ||
1140 | mutex_lock(&wl->mutex); | |
1141 | ||
1142 | wl1251_debug(DEBUG_MAC80211, "mac80211 conf tx %d", queue); | |
1143 | ||
1144 | ret = wl1251_ps_elp_wakeup(wl); | |
1145 | if (ret < 0) | |
1146 | goto out; | |
1147 | ||
85359499 | 1148 | /* mac80211 uses units of 32 usec */ |
86dff7a7 KV |
1149 | ret = wl1251_acx_ac_cfg(wl, wl1251_tx_get_queue(queue), |
1150 | params->cw_min, params->cw_max, | |
85359499 | 1151 | params->aifs, params->txop * 32); |
27336f1c KV |
1152 | if (ret < 0) |
1153 | goto out_sleep; | |
1154 | ||
4ff6ffa1 KV |
1155 | if (params->uapsd) |
1156 | ps_scheme = WL1251_ACX_PS_SCHEME_UPSD_TRIGGER; | |
1157 | else | |
1158 | ps_scheme = WL1251_ACX_PS_SCHEME_LEGACY; | |
1159 | ||
27336f1c | 1160 | ret = wl1251_acx_tid_cfg(wl, wl1251_tx_get_queue(queue), |
49e1b9fa | 1161 | CHANNEL_TYPE_EDCF, |
4ff6ffa1 | 1162 | wl1251_tx_get_queue(queue), ps_scheme, |
27336f1c KV |
1163 | WL1251_ACX_ACK_POLICY_LEGACY); |
1164 | if (ret < 0) | |
1165 | goto out_sleep; | |
86dff7a7 | 1166 | |
27336f1c | 1167 | out_sleep: |
86dff7a7 KV |
1168 | wl1251_ps_elp_sleep(wl); |
1169 | ||
1170 | out: | |
1171 | mutex_unlock(&wl->mutex); | |
1172 | ||
1173 | return ret; | |
1174 | } | |
1175 | ||
2f01a1f5 | 1176 | /* can't be const, mac80211 writes to this */ |
80301cdc KV |
1177 | static struct ieee80211_supported_band wl1251_band_2ghz = { |
1178 | .channels = wl1251_channels, | |
1179 | .n_channels = ARRAY_SIZE(wl1251_channels), | |
1180 | .bitrates = wl1251_rates, | |
1181 | .n_bitrates = ARRAY_SIZE(wl1251_rates), | |
2f01a1f5 KV |
1182 | }; |
1183 | ||
80301cdc KV |
1184 | static const struct ieee80211_ops wl1251_ops = { |
1185 | .start = wl1251_op_start, | |
1186 | .stop = wl1251_op_stop, | |
1187 | .add_interface = wl1251_op_add_interface, | |
1188 | .remove_interface = wl1251_op_remove_interface, | |
1189 | .config = wl1251_op_config, | |
1190 | .configure_filter = wl1251_op_configure_filter, | |
1191 | .tx = wl1251_op_tx, | |
1192 | .set_key = wl1251_op_set_key, | |
1193 | .hw_scan = wl1251_op_hw_scan, | |
1194 | .bss_info_changed = wl1251_op_bss_info_changed, | |
1195 | .set_rts_threshold = wl1251_op_set_rts_threshold, | |
86dff7a7 | 1196 | .conf_tx = wl1251_op_conf_tx, |
2f01a1f5 KV |
1197 | }; |
1198 | ||
80301cdc | 1199 | static int wl1251_register_hw(struct wl1251 *wl) |
2f01a1f5 KV |
1200 | { |
1201 | int ret; | |
1202 | ||
1203 | if (wl->mac80211_registered) | |
1204 | return 0; | |
1205 | ||
1206 | SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr); | |
1207 | ||
1208 | ret = ieee80211_register_hw(wl->hw); | |
1209 | if (ret < 0) { | |
80301cdc | 1210 | wl1251_error("unable to register mac80211 hw: %d", ret); |
2f01a1f5 KV |
1211 | return ret; |
1212 | } | |
1213 | ||
1214 | wl->mac80211_registered = true; | |
1215 | ||
80301cdc | 1216 | wl1251_notice("loaded"); |
2f01a1f5 KV |
1217 | |
1218 | return 0; | |
1219 | } | |
1220 | ||
8e639c06 | 1221 | int wl1251_init_ieee80211(struct wl1251 *wl) |
2f01a1f5 | 1222 | { |
8e639c06 BC |
1223 | int ret; |
1224 | ||
2f01a1f5 KV |
1225 | /* The tx descriptor buffer and the TKIP space */ |
1226 | wl->hw->extra_tx_headroom = sizeof(struct tx_double_buffer_desc) | |
9f2ad4fb | 1227 | + WL1251_TKIP_IV_SPACE; |
2f01a1f5 KV |
1228 | |
1229 | /* unit us */ | |
1230 | /* FIXME: find a proper value */ | |
1231 | wl->hw->channel_change_time = 10000; | |
1232 | ||
1233 | wl->hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
8c8746f9 | 1234 | IEEE80211_HW_NOISE_DBM | |
6b21a2cd | 1235 | IEEE80211_HW_SUPPORTS_PS | |
4ff6ffa1 KV |
1236 | IEEE80211_HW_BEACON_FILTER | |
1237 | IEEE80211_HW_SUPPORTS_UAPSD; | |
2f01a1f5 KV |
1238 | |
1239 | wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); | |
1240 | wl->hw->wiphy->max_scan_ssids = 1; | |
80301cdc | 1241 | wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl1251_band_2ghz; |
2f01a1f5 | 1242 | |
da2fb4e9 KV |
1243 | wl->hw->queues = 4; |
1244 | ||
8e639c06 BC |
1245 | ret = wl1251_register_hw(wl); |
1246 | if (ret) | |
1247 | goto out; | |
2f01a1f5 | 1248 | |
8e639c06 BC |
1249 | wl1251_debugfs_init(wl); |
1250 | wl1251_notice("initialized"); | |
2f01a1f5 | 1251 | |
8e639c06 BC |
1252 | ret = 0; |
1253 | ||
1254 | out: | |
1255 | return ret; | |
1256 | } | |
af8c78eb | 1257 | EXPORT_SYMBOL_GPL(wl1251_init_ieee80211); |
08d9f572 | 1258 | |
8e639c06 | 1259 | struct ieee80211_hw *wl1251_alloc_hw(void) |
2f01a1f5 | 1260 | { |
2f01a1f5 | 1261 | struct ieee80211_hw *hw; |
80301cdc | 1262 | struct wl1251 *wl; |
8e639c06 | 1263 | int i; |
2f01a1f5 KV |
1264 | static const u8 nokia_oui[3] = {0x00, 0x1f, 0xdf}; |
1265 | ||
80301cdc | 1266 | hw = ieee80211_alloc_hw(sizeof(*wl), &wl1251_ops); |
2f01a1f5 | 1267 | if (!hw) { |
80301cdc | 1268 | wl1251_error("could not alloc ieee80211_hw"); |
8e639c06 | 1269 | return ERR_PTR(-ENOMEM); |
2f01a1f5 KV |
1270 | } |
1271 | ||
1272 | wl = hw->priv; | |
1273 | memset(wl, 0, sizeof(*wl)); | |
1274 | ||
1275 | wl->hw = hw; | |
2f01a1f5 KV |
1276 | |
1277 | wl->data_in_count = 0; | |
1278 | ||
1279 | skb_queue_head_init(&wl->tx_queue); | |
1280 | ||
80301cdc | 1281 | INIT_WORK(&wl->filter_work, wl1251_filter_work); |
d5da79ac | 1282 | INIT_DELAYED_WORK(&wl->elp_work, wl1251_elp_work); |
80301cdc | 1283 | wl->channel = WL1251_DEFAULT_CHANNEL; |
2f01a1f5 KV |
1284 | wl->scanning = false; |
1285 | wl->default_key = 0; | |
1286 | wl->listen_int = 1; | |
1287 | wl->rx_counter = 0; | |
1288 | wl->rx_handled = 0; | |
1289 | wl->rx_current_buffer = 0; | |
1290 | wl->rx_last_id = 0; | |
80301cdc KV |
1291 | wl->rx_config = WL1251_DEFAULT_RX_CONFIG; |
1292 | wl->rx_filter = WL1251_DEFAULT_RX_FILTER; | |
2f01a1f5 KV |
1293 | wl->elp = false; |
1294 | wl->psm = 0; | |
1295 | wl->psm_requested = false; | |
1296 | wl->tx_queue_stopped = false; | |
80301cdc | 1297 | wl->power_level = WL1251_DEFAULT_POWER_LEVEL; |
e2fd4611 KV |
1298 | wl->beacon_int = WL1251_DEFAULT_BEACON_INT; |
1299 | wl->dtim_period = WL1251_DEFAULT_DTIM_PERIOD; | |
287f6f96 | 1300 | wl->vif = NULL; |
2f01a1f5 | 1301 | |
2f01a1f5 KV |
1302 | for (i = 0; i < FW_TX_CMPLT_BLOCK_SIZE; i++) |
1303 | wl->tx_frames[i] = NULL; | |
1304 | ||
1305 | wl->next_tx_complete = 0; | |
1306 | ||
0e71bb08 KV |
1307 | INIT_WORK(&wl->irq_work, wl1251_irq_work); |
1308 | INIT_WORK(&wl->tx_work, wl1251_tx_work); | |
1309 | ||
2f01a1f5 KV |
1310 | /* |
1311 | * In case our MAC address is not correctly set, | |
1312 | * we use a random but Nokia MAC. | |
1313 | */ | |
1314 | memcpy(wl->mac_addr, nokia_oui, 3); | |
1315 | get_random_bytes(wl->mac_addr + 3, 3); | |
1316 | ||
80301cdc | 1317 | wl->state = WL1251_STATE_OFF; |
2f01a1f5 KV |
1318 | mutex_init(&wl->mutex); |
1319 | ||
1320 | wl->tx_mgmt_frm_rate = DEFAULT_HW_GEN_TX_RATE; | |
1321 | wl->tx_mgmt_frm_mod = DEFAULT_HW_GEN_MODULATION_TYPE; | |
1322 | ||
4721213f KV |
1323 | wl->rx_descriptor = kmalloc(sizeof(*wl->rx_descriptor), GFP_KERNEL); |
1324 | if (!wl->rx_descriptor) { | |
80301cdc | 1325 | wl1251_error("could not allocate memory for rx descriptor"); |
8e639c06 BC |
1326 | ieee80211_free_hw(hw); |
1327 | return ERR_PTR(-ENOMEM); | |
4721213f KV |
1328 | } |
1329 | ||
8e639c06 | 1330 | return hw; |
2f01a1f5 | 1331 | } |
af8c78eb | 1332 | EXPORT_SYMBOL_GPL(wl1251_alloc_hw); |
2f01a1f5 | 1333 | |
8e639c06 | 1334 | int wl1251_free_hw(struct wl1251 *wl) |
2f01a1f5 | 1335 | { |
2f01a1f5 KV |
1336 | ieee80211_unregister_hw(wl->hw); |
1337 | ||
80301cdc | 1338 | wl1251_debugfs_exit(wl); |
2f01a1f5 | 1339 | |
2f01a1f5 KV |
1340 | kfree(wl->target_mem_map); |
1341 | kfree(wl->data_path); | |
c74ddfd5 | 1342 | vfree(wl->fw); |
2f01a1f5 KV |
1343 | wl->fw = NULL; |
1344 | kfree(wl->nvs); | |
1345 | wl->nvs = NULL; | |
4721213f KV |
1346 | |
1347 | kfree(wl->rx_descriptor); | |
1348 | wl->rx_descriptor = NULL; | |
1349 | ||
2f01a1f5 KV |
1350 | ieee80211_free_hw(wl->hw); |
1351 | ||
1352 | return 0; | |
1353 | } | |
af8c78eb BC |
1354 | EXPORT_SYMBOL_GPL(wl1251_free_hw); |
1355 | ||
1356 | MODULE_DESCRIPTION("TI wl1251 Wireles LAN Driver Core"); | |
1357 | MODULE_LICENSE("GPL"); | |
b1b0a2b8 | 1358 | MODULE_AUTHOR("Kalle Valo <kalle.valo@nokia.com>"); |
40f54242 | 1359 | MODULE_ALIAS("spi:wl1251"); |
49f146de | 1360 | MODULE_FIRMWARE(WL1251_FW_NAME); |