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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> |
2f01a1f5 | 32 | |
13674118 | 33 | #include "wl1251.h" |
2f01a1f5 | 34 | #include "wl12xx_80211.h" |
29d904c4 | 35 | #include "wl1251_reg.h" |
0764de64 | 36 | #include "wl1251_io.h" |
8e639c06 | 37 | #include "wl1251_cmd.h" |
ef2f8d45 | 38 | #include "wl1251_event.h" |
9f2ad4fb | 39 | #include "wl1251_tx.h" |
ef2f8d45 KV |
40 | #include "wl1251_rx.h" |
41 | #include "wl1251_ps.h" | |
42 | #include "wl1251_init.h" | |
43 | #include "wl1251_debugfs.h" | |
0e71bb08 | 44 | #include "wl1251_boot.h" |
2f01a1f5 | 45 | |
b5ed9c1b | 46 | void wl1251_enable_interrupts(struct wl1251 *wl) |
2f01a1f5 | 47 | { |
b5ed9c1b BC |
48 | wl->if_ops->enable_irq(wl); |
49 | } | |
50 | ||
51 | void wl1251_disable_interrupts(struct wl1251 *wl) | |
52 | { | |
53 | wl->if_ops->disable_irq(wl); | |
2f01a1f5 KV |
54 | } |
55 | ||
80301cdc | 56 | static void wl1251_power_off(struct wl1251 *wl) |
2f01a1f5 KV |
57 | { |
58 | wl->set_power(false); | |
59 | } | |
60 | ||
80301cdc | 61 | static void wl1251_power_on(struct wl1251 *wl) |
2f01a1f5 KV |
62 | { |
63 | wl->set_power(true); | |
64 | } | |
65 | ||
80301cdc | 66 | static int wl1251_fetch_firmware(struct wl1251 *wl) |
2f01a1f5 KV |
67 | { |
68 | const struct firmware *fw; | |
6c766f41 | 69 | struct device *dev = wiphy_dev(wl->hw->wiphy); |
2f01a1f5 KV |
70 | int ret; |
71 | ||
0e71bb08 | 72 | ret = request_firmware(&fw, WL1251_FW_NAME, dev); |
2f01a1f5 KV |
73 | |
74 | if (ret < 0) { | |
80301cdc | 75 | wl1251_error("could not get firmware: %d", ret); |
2f01a1f5 KV |
76 | return ret; |
77 | } | |
78 | ||
79 | if (fw->size % 4) { | |
80301cdc | 80 | wl1251_error("firmware size is not multiple of 32 bits: %zu", |
2f01a1f5 KV |
81 | fw->size); |
82 | ret = -EILSEQ; | |
83 | goto out; | |
84 | } | |
85 | ||
86 | wl->fw_len = fw->size; | |
c74ddfd5 | 87 | wl->fw = vmalloc(wl->fw_len); |
2f01a1f5 KV |
88 | |
89 | if (!wl->fw) { | |
80301cdc | 90 | wl1251_error("could not allocate memory for the firmware"); |
2f01a1f5 KV |
91 | ret = -ENOMEM; |
92 | goto out; | |
93 | } | |
94 | ||
95 | memcpy(wl->fw, fw->data, wl->fw_len); | |
96 | ||
97 | ret = 0; | |
98 | ||
99 | out: | |
100 | release_firmware(fw); | |
101 | ||
102 | return ret; | |
103 | } | |
104 | ||
80301cdc | 105 | static int wl1251_fetch_nvs(struct wl1251 *wl) |
2f01a1f5 KV |
106 | { |
107 | const struct firmware *fw; | |
6c766f41 | 108 | struct device *dev = wiphy_dev(wl->hw->wiphy); |
2f01a1f5 KV |
109 | int ret; |
110 | ||
0e71bb08 | 111 | ret = request_firmware(&fw, WL1251_NVS_NAME, dev); |
2f01a1f5 KV |
112 | |
113 | if (ret < 0) { | |
80301cdc | 114 | wl1251_error("could not get nvs file: %d", ret); |
2f01a1f5 KV |
115 | return ret; |
116 | } | |
117 | ||
118 | if (fw->size % 4) { | |
80301cdc | 119 | wl1251_error("nvs size is not multiple of 32 bits: %zu", |
2f01a1f5 KV |
120 | fw->size); |
121 | ret = -EILSEQ; | |
122 | goto out; | |
123 | } | |
124 | ||
125 | wl->nvs_len = fw->size; | |
126 | wl->nvs = kmalloc(wl->nvs_len, GFP_KERNEL); | |
127 | ||
128 | if (!wl->nvs) { | |
80301cdc | 129 | wl1251_error("could not allocate memory for the nvs file"); |
2f01a1f5 KV |
130 | ret = -ENOMEM; |
131 | goto out; | |
132 | } | |
133 | ||
134 | memcpy(wl->nvs, fw->data, wl->nvs_len); | |
135 | ||
136 | ret = 0; | |
137 | ||
138 | out: | |
139 | release_firmware(fw); | |
140 | ||
141 | return ret; | |
142 | } | |
143 | ||
80301cdc | 144 | static void wl1251_fw_wakeup(struct wl1251 *wl) |
2f01a1f5 KV |
145 | { |
146 | u32 elp_reg; | |
147 | ||
148 | elp_reg = ELPCTRL_WAKE_UP; | |
3f9e750d GI |
149 | wl1251_write_elp(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg); |
150 | elp_reg = wl1251_read_elp(wl, HW_ACCESS_ELP_CTRL_REG_ADDR); | |
2f01a1f5 | 151 | |
05fac682 | 152 | if (!(elp_reg & ELPCTRL_WLAN_READY)) |
80301cdc | 153 | wl1251_warning("WLAN not ready"); |
2f01a1f5 KV |
154 | } |
155 | ||
80301cdc | 156 | static int wl1251_chip_wakeup(struct wl1251 *wl) |
2f01a1f5 KV |
157 | { |
158 | int ret = 0; | |
159 | ||
80301cdc | 160 | wl1251_power_on(wl); |
0e71bb08 | 161 | msleep(WL1251_POWER_ON_SLEEP); |
08d9f572 | 162 | wl->if_ops->reset(wl); |
2f01a1f5 KV |
163 | |
164 | /* We don't need a real memory partition here, because we only want | |
165 | * to use the registers at this point. */ | |
80301cdc | 166 | wl1251_set_partition(wl, |
2f01a1f5 KV |
167 | 0x00000000, |
168 | 0x00000000, | |
169 | REGISTERS_BASE, | |
170 | REGISTERS_DOWN_SIZE); | |
171 | ||
172 | /* ELP module wake up */ | |
80301cdc | 173 | wl1251_fw_wakeup(wl); |
2f01a1f5 KV |
174 | |
175 | /* whal_FwCtrl_BootSm() */ | |
176 | ||
177 | /* 0. read chip id from CHIP_ID */ | |
0e71bb08 | 178 | wl->chip_id = wl1251_reg_read32(wl, CHIP_ID_B); |
2f01a1f5 KV |
179 | |
180 | /* 1. check if chip id is valid */ | |
181 | ||
0e71bb08 | 182 | switch (wl->chip_id) { |
2f01a1f5 | 183 | case CHIP_ID_1251_PG12: |
80301cdc | 184 | wl1251_debug(DEBUG_BOOT, "chip id 0x%x (1251 PG12)", |
0e71bb08 | 185 | wl->chip_id); |
2f01a1f5 | 186 | break; |
2f01a1f5 | 187 | case CHIP_ID_1251_PG11: |
2c759e03 DJW |
188 | wl1251_debug(DEBUG_BOOT, "chip id 0x%x (1251 PG11)", |
189 | wl->chip_id); | |
190 | break; | |
9a493e8f | 191 | case CHIP_ID_1251_PG10: |
2f01a1f5 | 192 | default: |
0e71bb08 | 193 | wl1251_error("unsupported chip id: 0x%x", wl->chip_id); |
2f01a1f5 KV |
194 | ret = -ENODEV; |
195 | goto out; | |
196 | } | |
197 | ||
198 | if (wl->fw == NULL) { | |
80301cdc | 199 | ret = wl1251_fetch_firmware(wl); |
2f01a1f5 KV |
200 | if (ret < 0) |
201 | goto out; | |
202 | } | |
203 | ||
afa5ec27 GI |
204 | if (wl->nvs == NULL && !wl->use_eeprom) { |
205 | /* No NVS from netlink, try to get it from the filesystem */ | |
80301cdc | 206 | ret = wl1251_fetch_nvs(wl); |
2f01a1f5 KV |
207 | if (ret < 0) |
208 | goto out; | |
209 | } | |
210 | ||
211 | out: | |
212 | return ret; | |
213 | } | |
214 | ||
dcea4dbe | 215 | #define WL1251_IRQ_LOOP_COUNT 10 |
0e71bb08 KV |
216 | static void wl1251_irq_work(struct work_struct *work) |
217 | { | |
dcea4dbe | 218 | u32 intr, ctr = WL1251_IRQ_LOOP_COUNT; |
0e71bb08 KV |
219 | struct wl1251 *wl = |
220 | container_of(work, struct wl1251, irq_work); | |
221 | int ret; | |
222 | ||
223 | mutex_lock(&wl->mutex); | |
224 | ||
225 | wl1251_debug(DEBUG_IRQ, "IRQ work"); | |
226 | ||
227 | if (wl->state == WL1251_STATE_OFF) | |
228 | goto out; | |
229 | ||
230 | ret = wl1251_ps_elp_wakeup(wl); | |
231 | if (ret < 0) | |
232 | goto out; | |
233 | ||
234 | wl1251_reg_write32(wl, ACX_REG_INTERRUPT_MASK, WL1251_ACX_INTR_ALL); | |
235 | ||
236 | intr = wl1251_reg_read32(wl, ACX_REG_INTERRUPT_CLEAR); | |
237 | wl1251_debug(DEBUG_IRQ, "intr: 0x%x", intr); | |
238 | ||
dcea4dbe JY |
239 | do { |
240 | if (wl->data_path) { | |
241 | wl->rx_counter = wl1251_mem_read32( | |
242 | wl, wl->data_path->rx_control_addr); | |
243 | ||
244 | /* We handle a frmware bug here */ | |
245 | switch ((wl->rx_counter - wl->rx_handled) & 0xf) { | |
246 | case 0: | |
247 | wl1251_debug(DEBUG_IRQ, | |
248 | "RX: FW and host in sync"); | |
249 | intr &= ~WL1251_ACX_INTR_RX0_DATA; | |
250 | intr &= ~WL1251_ACX_INTR_RX1_DATA; | |
251 | break; | |
252 | case 1: | |
253 | wl1251_debug(DEBUG_IRQ, "RX: FW +1"); | |
254 | intr |= WL1251_ACX_INTR_RX0_DATA; | |
255 | intr &= ~WL1251_ACX_INTR_RX1_DATA; | |
256 | break; | |
257 | case 2: | |
258 | wl1251_debug(DEBUG_IRQ, "RX: FW +2"); | |
259 | intr |= WL1251_ACX_INTR_RX0_DATA; | |
260 | intr |= WL1251_ACX_INTR_RX1_DATA; | |
261 | break; | |
262 | default: | |
263 | wl1251_warning( | |
264 | "RX: FW and host out of sync: %d", | |
265 | wl->rx_counter - wl->rx_handled); | |
266 | break; | |
267 | } | |
268 | ||
269 | wl->rx_handled = wl->rx_counter; | |
270 | ||
271 | wl1251_debug(DEBUG_IRQ, "RX counter: %d", | |
272 | wl->rx_counter); | |
0e71bb08 KV |
273 | } |
274 | ||
dcea4dbe | 275 | intr &= wl->intr_mask; |
0e71bb08 | 276 | |
dcea4dbe JY |
277 | if (intr == 0) { |
278 | wl1251_debug(DEBUG_IRQ, "INTR is 0"); | |
279 | goto out_sleep; | |
280 | } | |
0e71bb08 | 281 | |
dcea4dbe JY |
282 | if (intr & WL1251_ACX_INTR_RX0_DATA) { |
283 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_RX0_DATA"); | |
284 | wl1251_rx(wl); | |
285 | } | |
0e71bb08 | 286 | |
dcea4dbe JY |
287 | if (intr & WL1251_ACX_INTR_RX1_DATA) { |
288 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_RX1_DATA"); | |
289 | wl1251_rx(wl); | |
290 | } | |
0e71bb08 | 291 | |
dcea4dbe JY |
292 | if (intr & WL1251_ACX_INTR_TX_RESULT) { |
293 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_TX_RESULT"); | |
294 | wl1251_tx_complete(wl); | |
295 | } | |
0e71bb08 | 296 | |
dcea4dbe JY |
297 | if (intr & (WL1251_ACX_INTR_EVENT_A | |
298 | WL1251_ACX_INTR_EVENT_B)) { | |
299 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_EVENT (0x%x)", | |
300 | intr); | |
301 | if (intr & WL1251_ACX_INTR_EVENT_A) | |
302 | wl1251_event_handle(wl, 0); | |
303 | else | |
304 | wl1251_event_handle(wl, 1); | |
305 | } | |
0e71bb08 | 306 | |
dcea4dbe JY |
307 | if (intr & WL1251_ACX_INTR_INIT_COMPLETE) |
308 | wl1251_debug(DEBUG_IRQ, | |
309 | "WL1251_ACX_INTR_INIT_COMPLETE"); | |
0e71bb08 | 310 | |
79553f82 JO |
311 | if (--ctr == 0) |
312 | break; | |
0e71bb08 | 313 | |
79553f82 JO |
314 | intr = wl1251_reg_read32(wl, ACX_REG_INTERRUPT_CLEAR); |
315 | } while (intr); | |
0e71bb08 KV |
316 | |
317 | out_sleep: | |
dcea4dbe | 318 | wl1251_reg_write32(wl, ACX_REG_INTERRUPT_MASK, ~(wl->intr_mask)); |
0e71bb08 KV |
319 | wl1251_ps_elp_sleep(wl); |
320 | ||
321 | out: | |
322 | mutex_unlock(&wl->mutex); | |
323 | } | |
324 | ||
ae46ae17 KV |
325 | static int wl1251_join(struct wl1251 *wl, u8 bss_type, u8 channel, |
326 | u16 beacon_interval, u8 dtim_period) | |
327 | { | |
328 | int ret; | |
329 | ||
330 | ret = wl1251_acx_frame_rates(wl, DEFAULT_HW_GEN_TX_RATE, | |
331 | DEFAULT_HW_GEN_MODULATION_TYPE, | |
332 | wl->tx_mgmt_frm_rate, | |
333 | wl->tx_mgmt_frm_mod); | |
334 | if (ret < 0) | |
335 | goto out; | |
336 | ||
337 | ||
338 | ret = wl1251_cmd_join(wl, bss_type, channel, beacon_interval, | |
339 | dtim_period); | |
340 | if (ret < 0) | |
341 | goto out; | |
342 | ||
343 | /* | |
344 | * FIXME: we should wait for JOIN_EVENT_COMPLETE_ID but to simplify | |
345 | * locking we just sleep instead, for now | |
346 | */ | |
347 | msleep(10); | |
348 | ||
349 | out: | |
350 | return ret; | |
351 | } | |
352 | ||
80301cdc | 353 | static void wl1251_filter_work(struct work_struct *work) |
2f01a1f5 | 354 | { |
80301cdc KV |
355 | struct wl1251 *wl = |
356 | container_of(work, struct wl1251, filter_work); | |
2f01a1f5 KV |
357 | int ret; |
358 | ||
359 | mutex_lock(&wl->mutex); | |
360 | ||
80301cdc | 361 | if (wl->state == WL1251_STATE_OFF) |
2f01a1f5 KV |
362 | goto out; |
363 | ||
80301cdc | 364 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
365 | if (ret < 0) |
366 | goto out; | |
01d9cfbd | 367 | |
ae46ae17 KV |
368 | ret = wl1251_join(wl, wl->bss_type, wl->channel, wl->beacon_int, |
369 | wl->dtim_period); | |
2f01a1f5 | 370 | if (ret < 0) |
c5483b71 | 371 | goto out_sleep; |
2f01a1f5 | 372 | |
c5483b71 | 373 | out_sleep: |
80301cdc | 374 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
375 | |
376 | out: | |
2f01a1f5 KV |
377 | mutex_unlock(&wl->mutex); |
378 | } | |
379 | ||
80301cdc | 380 | static int wl1251_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
2f01a1f5 | 381 | { |
80301cdc | 382 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
383 | |
384 | skb_queue_tail(&wl->tx_queue, skb); | |
385 | ||
9f2ad4fb JO |
386 | /* |
387 | * The chip specific setup must run before the first TX packet - | |
388 | * before that, the tx_work will not be initialized! | |
389 | */ | |
390 | ||
16e711f9 | 391 | ieee80211_queue_work(wl->hw, &wl->tx_work); |
2f01a1f5 KV |
392 | |
393 | /* | |
394 | * The workqueue is slow to process the tx_queue and we need stop | |
395 | * the queue here, otherwise the queue will get too long. | |
396 | */ | |
80301cdc | 397 | if (skb_queue_len(&wl->tx_queue) >= WL1251_TX_QUEUE_MAX_LENGTH) { |
d67e2618 | 398 | wl1251_debug(DEBUG_TX, "op_tx: tx_queue full, stop queues"); |
2f01a1f5 KV |
399 | ieee80211_stop_queues(wl->hw); |
400 | ||
401 | /* | |
402 | * FIXME: this is racy, the variable is not properly | |
403 | * protected. Maybe fix this by removing the stupid | |
404 | * variable altogether and checking the real queue state? | |
405 | */ | |
406 | wl->tx_queue_stopped = true; | |
407 | } | |
408 | ||
409 | return NETDEV_TX_OK; | |
410 | } | |
411 | ||
80301cdc | 412 | static int wl1251_op_start(struct ieee80211_hw *hw) |
2f01a1f5 | 413 | { |
80301cdc | 414 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
415 | int ret = 0; |
416 | ||
80301cdc | 417 | wl1251_debug(DEBUG_MAC80211, "mac80211 start"); |
2f01a1f5 KV |
418 | |
419 | mutex_lock(&wl->mutex); | |
420 | ||
80301cdc KV |
421 | if (wl->state != WL1251_STATE_OFF) { |
422 | wl1251_error("cannot start because not in off state: %d", | |
2f01a1f5 KV |
423 | wl->state); |
424 | ret = -EBUSY; | |
425 | goto out; | |
426 | } | |
427 | ||
80301cdc | 428 | ret = wl1251_chip_wakeup(wl); |
2f01a1f5 | 429 | if (ret < 0) |
fe643414 | 430 | goto out; |
2f01a1f5 | 431 | |
0e71bb08 | 432 | ret = wl1251_boot(wl); |
2f01a1f5 KV |
433 | if (ret < 0) |
434 | goto out; | |
435 | ||
0e71bb08 | 436 | ret = wl1251_hw_init(wl); |
2f01a1f5 KV |
437 | if (ret < 0) |
438 | goto out; | |
439 | ||
80301cdc | 440 | ret = wl1251_acx_station_id(wl); |
2f01a1f5 KV |
441 | if (ret < 0) |
442 | goto out; | |
443 | ||
80301cdc | 444 | wl->state = WL1251_STATE_ON; |
2f01a1f5 | 445 | |
0e71bb08 | 446 | wl1251_info("firmware booted (%s)", wl->fw_ver); |
2f01a1f5 KV |
447 | |
448 | out: | |
449 | if (ret < 0) | |
80301cdc | 450 | wl1251_power_off(wl); |
2f01a1f5 KV |
451 | |
452 | mutex_unlock(&wl->mutex); | |
453 | ||
454 | return ret; | |
455 | } | |
456 | ||
80301cdc | 457 | static void wl1251_op_stop(struct ieee80211_hw *hw) |
2f01a1f5 | 458 | { |
80301cdc | 459 | struct wl1251 *wl = hw->priv; |
2f01a1f5 | 460 | |
80301cdc | 461 | wl1251_info("down"); |
2f01a1f5 | 462 | |
80301cdc | 463 | wl1251_debug(DEBUG_MAC80211, "mac80211 stop"); |
2f01a1f5 KV |
464 | |
465 | mutex_lock(&wl->mutex); | |
466 | ||
80301cdc | 467 | WARN_ON(wl->state != WL1251_STATE_ON); |
2f01a1f5 KV |
468 | |
469 | if (wl->scanning) { | |
470 | mutex_unlock(&wl->mutex); | |
471 | ieee80211_scan_completed(wl->hw, true); | |
472 | mutex_lock(&wl->mutex); | |
473 | wl->scanning = false; | |
474 | } | |
475 | ||
80301cdc | 476 | wl->state = WL1251_STATE_OFF; |
2f01a1f5 | 477 | |
80301cdc | 478 | wl1251_disable_interrupts(wl); |
2f01a1f5 KV |
479 | |
480 | mutex_unlock(&wl->mutex); | |
481 | ||
482 | cancel_work_sync(&wl->irq_work); | |
483 | cancel_work_sync(&wl->tx_work); | |
484 | cancel_work_sync(&wl->filter_work); | |
485 | ||
486 | mutex_lock(&wl->mutex); | |
487 | ||
488 | /* let's notify MAC80211 about the remaining pending TX frames */ | |
0e71bb08 | 489 | wl1251_tx_flush(wl); |
80301cdc | 490 | wl1251_power_off(wl); |
2f01a1f5 KV |
491 | |
492 | memset(wl->bssid, 0, ETH_ALEN); | |
493 | wl->listen_int = 1; | |
494 | wl->bss_type = MAX_BSS_TYPE; | |
495 | ||
496 | wl->data_in_count = 0; | |
497 | wl->rx_counter = 0; | |
498 | wl->rx_handled = 0; | |
499 | wl->rx_current_buffer = 0; | |
500 | wl->rx_last_id = 0; | |
501 | wl->next_tx_complete = 0; | |
502 | wl->elp = false; | |
503 | wl->psm = 0; | |
504 | wl->tx_queue_stopped = false; | |
80301cdc | 505 | wl->power_level = WL1251_DEFAULT_POWER_LEVEL; |
9780279c | 506 | wl->channel = WL1251_DEFAULT_CHANNEL; |
2f01a1f5 | 507 | |
80301cdc | 508 | wl1251_debugfs_reset(wl); |
2f01a1f5 KV |
509 | |
510 | mutex_unlock(&wl->mutex); | |
511 | } | |
512 | ||
80301cdc | 513 | static int wl1251_op_add_interface(struct ieee80211_hw *hw, |
1ed32e4f | 514 | struct ieee80211_vif *vif) |
2f01a1f5 | 515 | { |
80301cdc | 516 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
517 | int ret = 0; |
518 | ||
e91d8334 | 519 | wl1251_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM", |
1ed32e4f | 520 | vif->type, vif->addr); |
2f01a1f5 KV |
521 | |
522 | mutex_lock(&wl->mutex); | |
287f6f96 JO |
523 | if (wl->vif) { |
524 | ret = -EBUSY; | |
525 | goto out; | |
526 | } | |
527 | ||
1ed32e4f | 528 | wl->vif = vif; |
2f01a1f5 | 529 | |
1ed32e4f | 530 | switch (vif->type) { |
2f01a1f5 KV |
531 | case NL80211_IFTYPE_STATION: |
532 | wl->bss_type = BSS_TYPE_STA_BSS; | |
533 | break; | |
534 | case NL80211_IFTYPE_ADHOC: | |
535 | wl->bss_type = BSS_TYPE_IBSS; | |
536 | break; | |
537 | default: | |
538 | ret = -EOPNOTSUPP; | |
539 | goto out; | |
540 | } | |
541 | ||
1ed32e4f JB |
542 | if (memcmp(wl->mac_addr, vif->addr, ETH_ALEN)) { |
543 | memcpy(wl->mac_addr, vif->addr, ETH_ALEN); | |
2f01a1f5 | 544 | SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr); |
80301cdc | 545 | ret = wl1251_acx_station_id(wl); |
2f01a1f5 KV |
546 | if (ret < 0) |
547 | goto out; | |
548 | } | |
549 | ||
550 | out: | |
551 | mutex_unlock(&wl->mutex); | |
552 | return ret; | |
553 | } | |
554 | ||
80301cdc | 555 | static void wl1251_op_remove_interface(struct ieee80211_hw *hw, |
1ed32e4f | 556 | struct ieee80211_vif *vif) |
2f01a1f5 | 557 | { |
287f6f96 JO |
558 | struct wl1251 *wl = hw->priv; |
559 | ||
560 | mutex_lock(&wl->mutex); | |
80301cdc | 561 | wl1251_debug(DEBUG_MAC80211, "mac80211 remove interface"); |
287f6f96 JO |
562 | wl->vif = NULL; |
563 | mutex_unlock(&wl->mutex); | |
2f01a1f5 KV |
564 | } |
565 | ||
8f8ff916 KV |
566 | static int wl1251_build_qos_null_data(struct wl1251 *wl) |
567 | { | |
568 | struct ieee80211_qos_hdr template; | |
569 | ||
570 | memset(&template, 0, sizeof(template)); | |
571 | ||
572 | memcpy(template.addr1, wl->bssid, ETH_ALEN); | |
573 | memcpy(template.addr2, wl->mac_addr, ETH_ALEN); | |
574 | memcpy(template.addr3, wl->bssid, ETH_ALEN); | |
575 | ||
576 | template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | | |
577 | IEEE80211_STYPE_QOS_NULLFUNC | | |
578 | IEEE80211_FCTL_TODS); | |
579 | ||
580 | /* FIXME: not sure what priority to use here */ | |
581 | template.qos_ctrl = cpu_to_le16(0); | |
582 | ||
583 | return wl1251_cmd_template_set(wl, CMD_QOS_NULL_DATA, &template, | |
584 | sizeof(template)); | |
585 | } | |
586 | ||
80301cdc | 587 | static int wl1251_op_config(struct ieee80211_hw *hw, u32 changed) |
2f01a1f5 | 588 | { |
80301cdc | 589 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
590 | struct ieee80211_conf *conf = &hw->conf; |
591 | int channel, ret = 0; | |
592 | ||
593 | channel = ieee80211_frequency_to_channel(conf->channel->center_freq); | |
594 | ||
80301cdc | 595 | wl1251_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d", |
2f01a1f5 KV |
596 | channel, |
597 | conf->flags & IEEE80211_CONF_PS ? "on" : "off", | |
598 | conf->power_level); | |
599 | ||
600 | mutex_lock(&wl->mutex); | |
601 | ||
80301cdc | 602 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
603 | if (ret < 0) |
604 | goto out; | |
01d9cfbd | 605 | |
2f01a1f5 | 606 | if (channel != wl->channel) { |
fe9a9846 KV |
607 | wl->channel = channel; |
608 | ||
ae46ae17 KV |
609 | ret = wl1251_join(wl, wl->bss_type, wl->channel, |
610 | wl->beacon_int, wl->dtim_period); | |
2f01a1f5 | 611 | if (ret < 0) |
c5483b71 | 612 | goto out_sleep; |
2f01a1f5 KV |
613 | } |
614 | ||
2f01a1f5 | 615 | if (conf->flags & IEEE80211_CONF_PS && !wl->psm_requested) { |
47af3fe3 | 616 | wl1251_debug(DEBUG_PSM, "psm enabled"); |
2f01a1f5 KV |
617 | |
618 | wl->psm_requested = true; | |
619 | ||
56007a02 JB |
620 | wl->dtim_period = conf->ps_dtim_period; |
621 | ||
622 | ret = wl1251_acx_wr_tbtt_and_dtim(wl, wl->beacon_int, | |
623 | wl->dtim_period); | |
624 | ||
2f01a1f5 | 625 | /* |
56007a02 | 626 | * mac80211 enables PSM only if we're already associated. |
2f01a1f5 | 627 | */ |
80301cdc | 628 | ret = wl1251_ps_set_mode(wl, STATION_POWER_SAVE_MODE); |
478fdf2b KV |
629 | if (ret < 0) |
630 | goto out_sleep; | |
2f01a1f5 KV |
631 | } else if (!(conf->flags & IEEE80211_CONF_PS) && |
632 | wl->psm_requested) { | |
47af3fe3 | 633 | wl1251_debug(DEBUG_PSM, "psm disabled"); |
2f01a1f5 KV |
634 | |
635 | wl->psm_requested = false; | |
636 | ||
478fdf2b | 637 | if (wl->psm) { |
80301cdc | 638 | ret = wl1251_ps_set_mode(wl, STATION_ACTIVE_MODE); |
478fdf2b KV |
639 | if (ret < 0) |
640 | goto out_sleep; | |
641 | } | |
2f01a1f5 KV |
642 | } |
643 | ||
644 | if (conf->power_level != wl->power_level) { | |
80301cdc | 645 | ret = wl1251_acx_tx_power(wl, conf->power_level); |
2f01a1f5 | 646 | if (ret < 0) |
478fdf2b | 647 | goto out_sleep; |
2f01a1f5 KV |
648 | |
649 | wl->power_level = conf->power_level; | |
650 | } | |
651 | ||
c5483b71 | 652 | out_sleep: |
80301cdc | 653 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
654 | |
655 | out: | |
2f01a1f5 | 656 | mutex_unlock(&wl->mutex); |
c5483b71 | 657 | |
2f01a1f5 KV |
658 | return ret; |
659 | } | |
660 | ||
80301cdc | 661 | #define WL1251_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \ |
2f01a1f5 KV |
662 | FIF_ALLMULTI | \ |
663 | FIF_FCSFAIL | \ | |
664 | FIF_BCN_PRBRESP_PROMISC | \ | |
665 | FIF_CONTROL | \ | |
666 | FIF_OTHER_BSS) | |
667 | ||
80301cdc | 668 | static void wl1251_op_configure_filter(struct ieee80211_hw *hw, |
2f01a1f5 | 669 | unsigned int changed, |
3ac64bee | 670 | unsigned int *total,u64 multicast) |
2f01a1f5 | 671 | { |
80301cdc | 672 | struct wl1251 *wl = hw->priv; |
2f01a1f5 | 673 | |
80301cdc | 674 | wl1251_debug(DEBUG_MAC80211, "mac80211 configure filter"); |
2f01a1f5 | 675 | |
80301cdc KV |
676 | *total &= WL1251_SUPPORTED_FILTERS; |
677 | changed &= WL1251_SUPPORTED_FILTERS; | |
2f01a1f5 KV |
678 | |
679 | if (changed == 0) | |
680 | /* no filters which we support changed */ | |
681 | return; | |
682 | ||
683 | /* FIXME: wl->rx_config and wl->rx_filter are not protected */ | |
684 | ||
80301cdc KV |
685 | wl->rx_config = WL1251_DEFAULT_RX_CONFIG; |
686 | wl->rx_filter = WL1251_DEFAULT_RX_FILTER; | |
2f01a1f5 KV |
687 | |
688 | if (*total & FIF_PROMISC_IN_BSS) { | |
689 | wl->rx_config |= CFG_BSSID_FILTER_EN; | |
690 | wl->rx_config |= CFG_RX_ALL_GOOD; | |
691 | } | |
692 | if (*total & FIF_ALLMULTI) | |
693 | /* | |
694 | * CFG_MC_FILTER_EN in rx_config needs to be 0 to receive | |
695 | * all multicast frames | |
696 | */ | |
697 | wl->rx_config &= ~CFG_MC_FILTER_EN; | |
698 | if (*total & FIF_FCSFAIL) | |
699 | wl->rx_filter |= CFG_RX_FCS_ERROR; | |
700 | if (*total & FIF_BCN_PRBRESP_PROMISC) { | |
701 | wl->rx_config &= ~CFG_BSSID_FILTER_EN; | |
702 | wl->rx_config &= ~CFG_SSID_FILTER_EN; | |
703 | } | |
704 | if (*total & FIF_CONTROL) | |
705 | wl->rx_filter |= CFG_RX_CTL_EN; | |
706 | if (*total & FIF_OTHER_BSS) | |
707 | wl->rx_filter &= ~CFG_BSSID_FILTER_EN; | |
708 | ||
709 | /* | |
710 | * FIXME: workqueues need to be properly cancelled on stop(), for | |
711 | * now let's just disable changing the filter settings. They will | |
712 | * be updated any on config(). | |
713 | */ | |
714 | /* schedule_work(&wl->filter_work); */ | |
715 | } | |
716 | ||
717 | /* HW encryption */ | |
80301cdc KV |
718 | static int wl1251_set_key_type(struct wl1251 *wl, |
719 | struct wl1251_cmd_set_keys *key, | |
2f01a1f5 KV |
720 | enum set_key_cmd cmd, |
721 | struct ieee80211_key_conf *mac80211_key, | |
722 | const u8 *addr) | |
723 | { | |
724 | switch (mac80211_key->alg) { | |
725 | case ALG_WEP: | |
726 | if (is_broadcast_ether_addr(addr)) | |
727 | key->key_type = KEY_WEP_DEFAULT; | |
728 | else | |
729 | key->key_type = KEY_WEP_ADDR; | |
730 | ||
731 | mac80211_key->hw_key_idx = mac80211_key->keyidx; | |
732 | break; | |
733 | case ALG_TKIP: | |
734 | if (is_broadcast_ether_addr(addr)) | |
735 | key->key_type = KEY_TKIP_MIC_GROUP; | |
736 | else | |
737 | key->key_type = KEY_TKIP_MIC_PAIRWISE; | |
738 | ||
739 | mac80211_key->hw_key_idx = mac80211_key->keyidx; | |
740 | break; | |
741 | case ALG_CCMP: | |
742 | if (is_broadcast_ether_addr(addr)) | |
743 | key->key_type = KEY_AES_GROUP; | |
744 | else | |
745 | key->key_type = KEY_AES_PAIRWISE; | |
746 | mac80211_key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
747 | break; | |
748 | default: | |
80301cdc | 749 | wl1251_error("Unknown key algo 0x%x", mac80211_key->alg); |
2f01a1f5 KV |
750 | return -EOPNOTSUPP; |
751 | } | |
752 | ||
753 | return 0; | |
754 | } | |
755 | ||
80301cdc | 756 | static int wl1251_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
2f01a1f5 KV |
757 | struct ieee80211_vif *vif, |
758 | struct ieee80211_sta *sta, | |
759 | struct ieee80211_key_conf *key) | |
760 | { | |
80301cdc KV |
761 | struct wl1251 *wl = hw->priv; |
762 | struct wl1251_cmd_set_keys *wl_cmd; | |
2f01a1f5 KV |
763 | const u8 *addr; |
764 | int ret; | |
765 | ||
766 | static const u8 bcast_addr[ETH_ALEN] = | |
767 | { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; | |
768 | ||
80301cdc | 769 | wl1251_debug(DEBUG_MAC80211, "mac80211 set key"); |
2f01a1f5 | 770 | |
ff25839b KV |
771 | wl_cmd = kzalloc(sizeof(*wl_cmd), GFP_KERNEL); |
772 | if (!wl_cmd) { | |
773 | ret = -ENOMEM; | |
774 | goto out; | |
775 | } | |
2f01a1f5 KV |
776 | |
777 | addr = sta ? sta->addr : bcast_addr; | |
778 | ||
80301cdc KV |
779 | wl1251_debug(DEBUG_CRYPT, "CMD: 0x%x", cmd); |
780 | wl1251_dump(DEBUG_CRYPT, "ADDR: ", addr, ETH_ALEN); | |
781 | wl1251_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x", | |
2f01a1f5 | 782 | key->alg, key->keyidx, key->keylen, key->flags); |
80301cdc | 783 | wl1251_dump(DEBUG_CRYPT, "KEY: ", key->key, key->keylen); |
2f01a1f5 | 784 | |
ff25839b KV |
785 | if (is_zero_ether_addr(addr)) { |
786 | /* We dont support TX only encryption */ | |
787 | ret = -EOPNOTSUPP; | |
788 | goto out; | |
789 | } | |
790 | ||
2f01a1f5 KV |
791 | mutex_lock(&wl->mutex); |
792 | ||
80301cdc | 793 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
794 | if (ret < 0) |
795 | goto out_unlock; | |
01d9cfbd | 796 | |
2f01a1f5 KV |
797 | switch (cmd) { |
798 | case SET_KEY: | |
ff25839b | 799 | wl_cmd->key_action = KEY_ADD_OR_REPLACE; |
2f01a1f5 KV |
800 | break; |
801 | case DISABLE_KEY: | |
ff25839b | 802 | wl_cmd->key_action = KEY_REMOVE; |
2f01a1f5 KV |
803 | break; |
804 | default: | |
80301cdc | 805 | wl1251_error("Unsupported key cmd 0x%x", cmd); |
2f01a1f5 KV |
806 | break; |
807 | } | |
808 | ||
80301cdc | 809 | ret = wl1251_set_key_type(wl, wl_cmd, cmd, key, addr); |
2f01a1f5 | 810 | if (ret < 0) { |
80301cdc | 811 | wl1251_error("Set KEY type failed"); |
c5483b71 | 812 | goto out_sleep; |
2f01a1f5 KV |
813 | } |
814 | ||
ff25839b KV |
815 | if (wl_cmd->key_type != KEY_WEP_DEFAULT) |
816 | memcpy(wl_cmd->addr, addr, ETH_ALEN); | |
2f01a1f5 | 817 | |
ff25839b KV |
818 | if ((wl_cmd->key_type == KEY_TKIP_MIC_GROUP) || |
819 | (wl_cmd->key_type == KEY_TKIP_MIC_PAIRWISE)) { | |
2f01a1f5 KV |
820 | /* |
821 | * We get the key in the following form: | |
822 | * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) | |
823 | * but the target is expecting: | |
824 | * TKIP - RX MIC - TX MIC | |
825 | */ | |
ff25839b KV |
826 | memcpy(wl_cmd->key, key->key, 16); |
827 | memcpy(wl_cmd->key + 16, key->key + 24, 8); | |
828 | memcpy(wl_cmd->key + 24, key->key + 16, 8); | |
2f01a1f5 KV |
829 | |
830 | } else { | |
ff25839b | 831 | memcpy(wl_cmd->key, key->key, key->keylen); |
2f01a1f5 | 832 | } |
ff25839b | 833 | wl_cmd->key_size = key->keylen; |
2f01a1f5 | 834 | |
ff25839b KV |
835 | wl_cmd->id = key->keyidx; |
836 | wl_cmd->ssid_profile = 0; | |
2f01a1f5 | 837 | |
80301cdc | 838 | wl1251_dump(DEBUG_CRYPT, "TARGET KEY: ", wl_cmd, sizeof(*wl_cmd)); |
2f01a1f5 | 839 | |
80301cdc | 840 | ret = wl1251_cmd_send(wl, CMD_SET_KEYS, wl_cmd, sizeof(*wl_cmd)); |
ff25839b | 841 | if (ret < 0) { |
80301cdc | 842 | wl1251_warning("could not set keys"); |
c5483b71 | 843 | goto out_sleep; |
2f01a1f5 KV |
844 | } |
845 | ||
c5483b71 | 846 | out_sleep: |
80301cdc | 847 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
848 | |
849 | out_unlock: | |
2f01a1f5 | 850 | mutex_unlock(&wl->mutex); |
ff25839b KV |
851 | |
852 | out: | |
853 | kfree(wl_cmd); | |
854 | ||
2f01a1f5 KV |
855 | return ret; |
856 | } | |
857 | ||
80301cdc | 858 | static int wl1251_op_hw_scan(struct ieee80211_hw *hw, |
a060bbfe | 859 | struct ieee80211_vif *vif, |
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 | ||
61c2a80b GI |
1199 | static int wl1251_read_eeprom_byte(struct wl1251 *wl, off_t offset, u8 *data) |
1200 | { | |
1201 | unsigned long timeout; | |
1202 | ||
1203 | wl1251_reg_write32(wl, EE_ADDR, offset); | |
1204 | wl1251_reg_write32(wl, EE_CTL, EE_CTL_READ); | |
1205 | ||
1206 | /* EE_CTL_READ clears when data is ready */ | |
1207 | timeout = jiffies + msecs_to_jiffies(100); | |
1208 | while (1) { | |
1209 | if (!(wl1251_reg_read32(wl, EE_CTL) & EE_CTL_READ)) | |
1210 | break; | |
1211 | ||
1212 | if (time_after(jiffies, timeout)) | |
1213 | return -ETIMEDOUT; | |
1214 | ||
1215 | msleep(1); | |
1216 | } | |
1217 | ||
1218 | *data = wl1251_reg_read32(wl, EE_DATA); | |
1219 | return 0; | |
1220 | } | |
1221 | ||
1222 | static int wl1251_read_eeprom(struct wl1251 *wl, off_t offset, | |
1223 | u8 *data, size_t len) | |
1224 | { | |
1225 | size_t i; | |
1226 | int ret; | |
1227 | ||
1228 | wl1251_reg_write32(wl, EE_START, 0); | |
1229 | ||
1230 | for (i = 0; i < len; i++) { | |
1231 | ret = wl1251_read_eeprom_byte(wl, offset + i, &data[i]); | |
1232 | if (ret < 0) | |
1233 | return ret; | |
1234 | } | |
1235 | ||
1236 | return 0; | |
1237 | } | |
1238 | ||
1239 | static int wl1251_read_eeprom_mac(struct wl1251 *wl) | |
1240 | { | |
1241 | u8 mac[ETH_ALEN]; | |
1242 | int i, ret; | |
1243 | ||
1244 | wl1251_set_partition(wl, 0, 0, REGISTERS_BASE, REGISTERS_DOWN_SIZE); | |
1245 | ||
1246 | ret = wl1251_read_eeprom(wl, 0x1c, mac, sizeof(mac)); | |
1247 | if (ret < 0) { | |
1248 | wl1251_warning("failed to read MAC address from EEPROM"); | |
1249 | return ret; | |
1250 | } | |
1251 | ||
1252 | /* MAC is stored in reverse order */ | |
1253 | for (i = 0; i < ETH_ALEN; i++) | |
1254 | wl->mac_addr[i] = mac[ETH_ALEN - i - 1]; | |
1255 | ||
1256 | return 0; | |
1257 | } | |
1258 | ||
80301cdc | 1259 | static int wl1251_register_hw(struct wl1251 *wl) |
2f01a1f5 KV |
1260 | { |
1261 | int ret; | |
1262 | ||
1263 | if (wl->mac80211_registered) | |
1264 | return 0; | |
1265 | ||
1266 | SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr); | |
1267 | ||
1268 | ret = ieee80211_register_hw(wl->hw); | |
1269 | if (ret < 0) { | |
80301cdc | 1270 | wl1251_error("unable to register mac80211 hw: %d", ret); |
2f01a1f5 KV |
1271 | return ret; |
1272 | } | |
1273 | ||
1274 | wl->mac80211_registered = true; | |
1275 | ||
80301cdc | 1276 | wl1251_notice("loaded"); |
2f01a1f5 KV |
1277 | |
1278 | return 0; | |
1279 | } | |
1280 | ||
8e639c06 | 1281 | int wl1251_init_ieee80211(struct wl1251 *wl) |
2f01a1f5 | 1282 | { |
8e639c06 BC |
1283 | int ret; |
1284 | ||
2f01a1f5 KV |
1285 | /* The tx descriptor buffer and the TKIP space */ |
1286 | wl->hw->extra_tx_headroom = sizeof(struct tx_double_buffer_desc) | |
9f2ad4fb | 1287 | + WL1251_TKIP_IV_SPACE; |
2f01a1f5 KV |
1288 | |
1289 | /* unit us */ | |
1290 | /* FIXME: find a proper value */ | |
1291 | wl->hw->channel_change_time = 10000; | |
1292 | ||
1293 | wl->hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
6b21a2cd | 1294 | IEEE80211_HW_SUPPORTS_PS | |
4ff6ffa1 KV |
1295 | IEEE80211_HW_BEACON_FILTER | |
1296 | IEEE80211_HW_SUPPORTS_UAPSD; | |
2f01a1f5 KV |
1297 | |
1298 | wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); | |
1299 | wl->hw->wiphy->max_scan_ssids = 1; | |
80301cdc | 1300 | wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl1251_band_2ghz; |
2f01a1f5 | 1301 | |
da2fb4e9 KV |
1302 | wl->hw->queues = 4; |
1303 | ||
61c2a80b GI |
1304 | if (wl->use_eeprom) |
1305 | wl1251_read_eeprom_mac(wl); | |
1306 | ||
8e639c06 BC |
1307 | ret = wl1251_register_hw(wl); |
1308 | if (ret) | |
1309 | goto out; | |
2f01a1f5 | 1310 | |
8e639c06 BC |
1311 | wl1251_debugfs_init(wl); |
1312 | wl1251_notice("initialized"); | |
2f01a1f5 | 1313 | |
8e639c06 BC |
1314 | ret = 0; |
1315 | ||
1316 | out: | |
1317 | return ret; | |
1318 | } | |
af8c78eb | 1319 | EXPORT_SYMBOL_GPL(wl1251_init_ieee80211); |
08d9f572 | 1320 | |
8e639c06 | 1321 | struct ieee80211_hw *wl1251_alloc_hw(void) |
2f01a1f5 | 1322 | { |
2f01a1f5 | 1323 | struct ieee80211_hw *hw; |
80301cdc | 1324 | struct wl1251 *wl; |
8e639c06 | 1325 | int i; |
2f01a1f5 KV |
1326 | static const u8 nokia_oui[3] = {0x00, 0x1f, 0xdf}; |
1327 | ||
80301cdc | 1328 | hw = ieee80211_alloc_hw(sizeof(*wl), &wl1251_ops); |
2f01a1f5 | 1329 | if (!hw) { |
80301cdc | 1330 | wl1251_error("could not alloc ieee80211_hw"); |
8e639c06 | 1331 | return ERR_PTR(-ENOMEM); |
2f01a1f5 KV |
1332 | } |
1333 | ||
1334 | wl = hw->priv; | |
1335 | memset(wl, 0, sizeof(*wl)); | |
1336 | ||
1337 | wl->hw = hw; | |
2f01a1f5 KV |
1338 | |
1339 | wl->data_in_count = 0; | |
1340 | ||
1341 | skb_queue_head_init(&wl->tx_queue); | |
1342 | ||
80301cdc | 1343 | INIT_WORK(&wl->filter_work, wl1251_filter_work); |
d5da79ac | 1344 | INIT_DELAYED_WORK(&wl->elp_work, wl1251_elp_work); |
80301cdc | 1345 | wl->channel = WL1251_DEFAULT_CHANNEL; |
2f01a1f5 KV |
1346 | wl->scanning = false; |
1347 | wl->default_key = 0; | |
1348 | wl->listen_int = 1; | |
1349 | wl->rx_counter = 0; | |
1350 | wl->rx_handled = 0; | |
1351 | wl->rx_current_buffer = 0; | |
1352 | wl->rx_last_id = 0; | |
80301cdc KV |
1353 | wl->rx_config = WL1251_DEFAULT_RX_CONFIG; |
1354 | wl->rx_filter = WL1251_DEFAULT_RX_FILTER; | |
2f01a1f5 KV |
1355 | wl->elp = false; |
1356 | wl->psm = 0; | |
1357 | wl->psm_requested = false; | |
1358 | wl->tx_queue_stopped = false; | |
80301cdc | 1359 | wl->power_level = WL1251_DEFAULT_POWER_LEVEL; |
e2fd4611 KV |
1360 | wl->beacon_int = WL1251_DEFAULT_BEACON_INT; |
1361 | wl->dtim_period = WL1251_DEFAULT_DTIM_PERIOD; | |
287f6f96 | 1362 | wl->vif = NULL; |
2f01a1f5 | 1363 | |
2f01a1f5 KV |
1364 | for (i = 0; i < FW_TX_CMPLT_BLOCK_SIZE; i++) |
1365 | wl->tx_frames[i] = NULL; | |
1366 | ||
1367 | wl->next_tx_complete = 0; | |
1368 | ||
0e71bb08 KV |
1369 | INIT_WORK(&wl->irq_work, wl1251_irq_work); |
1370 | INIT_WORK(&wl->tx_work, wl1251_tx_work); | |
1371 | ||
2f01a1f5 KV |
1372 | /* |
1373 | * In case our MAC address is not correctly set, | |
1374 | * we use a random but Nokia MAC. | |
1375 | */ | |
1376 | memcpy(wl->mac_addr, nokia_oui, 3); | |
1377 | get_random_bytes(wl->mac_addr + 3, 3); | |
1378 | ||
80301cdc | 1379 | wl->state = WL1251_STATE_OFF; |
2f01a1f5 KV |
1380 | mutex_init(&wl->mutex); |
1381 | ||
1382 | wl->tx_mgmt_frm_rate = DEFAULT_HW_GEN_TX_RATE; | |
1383 | wl->tx_mgmt_frm_mod = DEFAULT_HW_GEN_MODULATION_TYPE; | |
1384 | ||
4721213f KV |
1385 | wl->rx_descriptor = kmalloc(sizeof(*wl->rx_descriptor), GFP_KERNEL); |
1386 | if (!wl->rx_descriptor) { | |
80301cdc | 1387 | wl1251_error("could not allocate memory for rx descriptor"); |
8e639c06 BC |
1388 | ieee80211_free_hw(hw); |
1389 | return ERR_PTR(-ENOMEM); | |
4721213f KV |
1390 | } |
1391 | ||
8e639c06 | 1392 | return hw; |
2f01a1f5 | 1393 | } |
af8c78eb | 1394 | EXPORT_SYMBOL_GPL(wl1251_alloc_hw); |
2f01a1f5 | 1395 | |
8e639c06 | 1396 | int wl1251_free_hw(struct wl1251 *wl) |
2f01a1f5 | 1397 | { |
2f01a1f5 KV |
1398 | ieee80211_unregister_hw(wl->hw); |
1399 | ||
80301cdc | 1400 | wl1251_debugfs_exit(wl); |
2f01a1f5 | 1401 | |
2f01a1f5 KV |
1402 | kfree(wl->target_mem_map); |
1403 | kfree(wl->data_path); | |
c74ddfd5 | 1404 | vfree(wl->fw); |
2f01a1f5 KV |
1405 | wl->fw = NULL; |
1406 | kfree(wl->nvs); | |
1407 | wl->nvs = NULL; | |
4721213f KV |
1408 | |
1409 | kfree(wl->rx_descriptor); | |
1410 | wl->rx_descriptor = NULL; | |
1411 | ||
2f01a1f5 KV |
1412 | ieee80211_free_hw(wl->hw); |
1413 | ||
1414 | return 0; | |
1415 | } | |
af8c78eb BC |
1416 | EXPORT_SYMBOL_GPL(wl1251_free_hw); |
1417 | ||
1418 | MODULE_DESCRIPTION("TI wl1251 Wireles LAN Driver Core"); | |
1419 | MODULE_LICENSE("GPL"); | |
b1b0a2b8 | 1420 | MODULE_AUTHOR("Kalle Valo <kalle.valo@nokia.com>"); |
40f54242 | 1421 | MODULE_ALIAS("spi:wl1251"); |
49f146de | 1422 | MODULE_FIRMWARE(WL1251_FW_NAME); |