Commit | Line | Data |
---|---|---|
2f01a1f5 | 1 | /* |
80301cdc | 2 | * This file is part of wl1251 |
2f01a1f5 KV |
3 | * |
4 | * Copyright (C) 2008-2009 Nokia Corporation | |
5 | * | |
2f01a1f5 KV |
6 | * This program is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU General Public License | |
8 | * version 2 as published by the Free Software Foundation. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA | |
18 | * 02110-1301 USA | |
19 | * | |
20 | */ | |
21 | ||
22 | #include <linux/module.h> | |
23 | #include <linux/interrupt.h> | |
24 | #include <linux/firmware.h> | |
25 | #include <linux/delay.h> | |
26 | #include <linux/irq.h> | |
2f01a1f5 KV |
27 | #include <linux/crc32.h> |
28 | #include <linux/etherdevice.h> | |
c74ddfd5 | 29 | #include <linux/vmalloc.h> |
5a0e3ad6 | 30 | #include <linux/slab.h> |
2f01a1f5 | 31 | |
13674118 | 32 | #include "wl1251.h" |
2f01a1f5 | 33 | #include "wl12xx_80211.h" |
9bc6772e KV |
34 | #include "reg.h" |
35 | #include "io.h" | |
36 | #include "cmd.h" | |
37 | #include "event.h" | |
38 | #include "tx.h" | |
39 | #include "rx.h" | |
40 | #include "ps.h" | |
41 | #include "init.h" | |
42 | #include "debugfs.h" | |
43 | #include "boot.h" | |
2f01a1f5 | 44 | |
b5ed9c1b | 45 | void wl1251_enable_interrupts(struct wl1251 *wl) |
2f01a1f5 | 46 | { |
b5ed9c1b BC |
47 | wl->if_ops->enable_irq(wl); |
48 | } | |
49 | ||
50 | void wl1251_disable_interrupts(struct wl1251 *wl) | |
51 | { | |
52 | wl->if_ops->disable_irq(wl); | |
2f01a1f5 KV |
53 | } |
54 | ||
cb7bbc7a | 55 | static int wl1251_power_off(struct wl1251 *wl) |
2f01a1f5 | 56 | { |
cb7bbc7a | 57 | return wl->if_ops->power(wl, false); |
2f01a1f5 KV |
58 | } |
59 | ||
cb7bbc7a | 60 | static int wl1251_power_on(struct wl1251 *wl) |
2f01a1f5 | 61 | { |
cb7bbc7a | 62 | return wl->if_ops->power(wl, true); |
2f01a1f5 KV |
63 | } |
64 | ||
80301cdc | 65 | static int wl1251_fetch_firmware(struct wl1251 *wl) |
2f01a1f5 KV |
66 | { |
67 | const struct firmware *fw; | |
6c766f41 | 68 | struct device *dev = wiphy_dev(wl->hw->wiphy); |
2f01a1f5 KV |
69 | int ret; |
70 | ||
0e71bb08 | 71 | ret = request_firmware(&fw, WL1251_FW_NAME, dev); |
2f01a1f5 KV |
72 | |
73 | if (ret < 0) { | |
80301cdc | 74 | wl1251_error("could not get firmware: %d", ret); |
2f01a1f5 KV |
75 | return ret; |
76 | } | |
77 | ||
78 | if (fw->size % 4) { | |
80301cdc | 79 | wl1251_error("firmware size is not multiple of 32 bits: %zu", |
2f01a1f5 KV |
80 | fw->size); |
81 | ret = -EILSEQ; | |
82 | goto out; | |
83 | } | |
84 | ||
85 | wl->fw_len = fw->size; | |
c74ddfd5 | 86 | wl->fw = vmalloc(wl->fw_len); |
2f01a1f5 KV |
87 | |
88 | if (!wl->fw) { | |
80301cdc | 89 | wl1251_error("could not allocate memory for the firmware"); |
2f01a1f5 KV |
90 | ret = -ENOMEM; |
91 | goto out; | |
92 | } | |
93 | ||
94 | memcpy(wl->fw, fw->data, wl->fw_len); | |
95 | ||
96 | ret = 0; | |
97 | ||
98 | out: | |
99 | release_firmware(fw); | |
100 | ||
101 | return ret; | |
102 | } | |
103 | ||
80301cdc | 104 | static int wl1251_fetch_nvs(struct wl1251 *wl) |
2f01a1f5 KV |
105 | { |
106 | const struct firmware *fw; | |
6c766f41 | 107 | struct device *dev = wiphy_dev(wl->hw->wiphy); |
2f01a1f5 KV |
108 | int ret; |
109 | ||
0e71bb08 | 110 | ret = request_firmware(&fw, WL1251_NVS_NAME, dev); |
2f01a1f5 KV |
111 | |
112 | if (ret < 0) { | |
80301cdc | 113 | wl1251_error("could not get nvs file: %d", ret); |
2f01a1f5 KV |
114 | return ret; |
115 | } | |
116 | ||
117 | if (fw->size % 4) { | |
80301cdc | 118 | wl1251_error("nvs size is not multiple of 32 bits: %zu", |
2f01a1f5 KV |
119 | fw->size); |
120 | ret = -EILSEQ; | |
121 | goto out; | |
122 | } | |
123 | ||
124 | wl->nvs_len = fw->size; | |
80caf601 | 125 | wl->nvs = kmemdup(fw->data, wl->nvs_len, GFP_KERNEL); |
2f01a1f5 KV |
126 | |
127 | if (!wl->nvs) { | |
80301cdc | 128 | wl1251_error("could not allocate memory for the nvs file"); |
2f01a1f5 KV |
129 | ret = -ENOMEM; |
130 | goto out; | |
131 | } | |
132 | ||
2f01a1f5 KV |
133 | ret = 0; |
134 | ||
135 | out: | |
136 | release_firmware(fw); | |
137 | ||
138 | return ret; | |
139 | } | |
140 | ||
80301cdc | 141 | static void wl1251_fw_wakeup(struct wl1251 *wl) |
2f01a1f5 KV |
142 | { |
143 | u32 elp_reg; | |
144 | ||
145 | elp_reg = ELPCTRL_WAKE_UP; | |
3f9e750d GI |
146 | wl1251_write_elp(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg); |
147 | elp_reg = wl1251_read_elp(wl, HW_ACCESS_ELP_CTRL_REG_ADDR); | |
2f01a1f5 | 148 | |
05fac682 | 149 | if (!(elp_reg & ELPCTRL_WLAN_READY)) |
80301cdc | 150 | wl1251_warning("WLAN not ready"); |
2f01a1f5 KV |
151 | } |
152 | ||
80301cdc | 153 | static int wl1251_chip_wakeup(struct wl1251 *wl) |
2f01a1f5 | 154 | { |
cb7bbc7a GI |
155 | int ret; |
156 | ||
157 | ret = wl1251_power_on(wl); | |
158 | if (ret < 0) | |
159 | return ret; | |
2f01a1f5 | 160 | |
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 | |
d41776fa GI |
297 | if (intr & WL1251_ACX_INTR_EVENT_A) { |
298 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_EVENT_A"); | |
299 | wl1251_event_handle(wl, 0); | |
300 | } | |
301 | ||
302 | if (intr & WL1251_ACX_INTR_EVENT_B) { | |
303 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_EVENT_B"); | |
304 | wl1251_event_handle(wl, 1); | |
dcea4dbe | 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 | ||
7273b970 GI |
343 | ret = wl1251_event_wait(wl, JOIN_EVENT_COMPLETE_ID, 100); |
344 | if (ret < 0) | |
345 | wl1251_warning("join timeout"); | |
ae46ae17 KV |
346 | |
347 | out: | |
348 | return ret; | |
349 | } | |
350 | ||
80301cdc | 351 | static void wl1251_filter_work(struct work_struct *work) |
2f01a1f5 | 352 | { |
80301cdc KV |
353 | struct wl1251 *wl = |
354 | container_of(work, struct wl1251, filter_work); | |
2f01a1f5 KV |
355 | int ret; |
356 | ||
357 | mutex_lock(&wl->mutex); | |
358 | ||
80301cdc | 359 | if (wl->state == WL1251_STATE_OFF) |
2f01a1f5 KV |
360 | goto out; |
361 | ||
80301cdc | 362 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
363 | if (ret < 0) |
364 | goto out; | |
01d9cfbd | 365 | |
ae46ae17 KV |
366 | ret = wl1251_join(wl, wl->bss_type, wl->channel, wl->beacon_int, |
367 | wl->dtim_period); | |
2f01a1f5 | 368 | if (ret < 0) |
c5483b71 | 369 | goto out_sleep; |
2f01a1f5 | 370 | |
c5483b71 | 371 | out_sleep: |
80301cdc | 372 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
373 | |
374 | out: | |
2f01a1f5 KV |
375 | mutex_unlock(&wl->mutex); |
376 | } | |
377 | ||
80301cdc | 378 | static int wl1251_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb) |
2f01a1f5 | 379 | { |
80301cdc | 380 | struct wl1251 *wl = hw->priv; |
9df86e2e | 381 | unsigned long flags; |
2f01a1f5 KV |
382 | |
383 | skb_queue_tail(&wl->tx_queue, skb); | |
384 | ||
9f2ad4fb JO |
385 | /* |
386 | * The chip specific setup must run before the first TX packet - | |
387 | * before that, the tx_work will not be initialized! | |
388 | */ | |
389 | ||
16e711f9 | 390 | ieee80211_queue_work(wl->hw, &wl->tx_work); |
2f01a1f5 KV |
391 | |
392 | /* | |
393 | * The workqueue is slow to process the tx_queue and we need stop | |
394 | * the queue here, otherwise the queue will get too long. | |
395 | */ | |
9df86e2e | 396 | if (skb_queue_len(&wl->tx_queue) >= WL1251_TX_QUEUE_HIGH_WATERMARK) { |
d67e2618 | 397 | wl1251_debug(DEBUG_TX, "op_tx: tx_queue full, stop queues"); |
2f01a1f5 | 398 | |
9df86e2e DGC |
399 | spin_lock_irqsave(&wl->wl_lock, flags); |
400 | ieee80211_stop_queues(wl->hw); | |
2f01a1f5 | 401 | wl->tx_queue_stopped = true; |
9df86e2e | 402 | spin_unlock_irqrestore(&wl->wl_lock, flags); |
2f01a1f5 KV |
403 | } |
404 | ||
405 | return NETDEV_TX_OK; | |
406 | } | |
407 | ||
80301cdc | 408 | static int wl1251_op_start(struct ieee80211_hw *hw) |
2f01a1f5 | 409 | { |
80301cdc | 410 | struct wl1251 *wl = hw->priv; |
8b28e822 | 411 | struct wiphy *wiphy = hw->wiphy; |
2f01a1f5 KV |
412 | int ret = 0; |
413 | ||
80301cdc | 414 | wl1251_debug(DEBUG_MAC80211, "mac80211 start"); |
2f01a1f5 KV |
415 | |
416 | mutex_lock(&wl->mutex); | |
417 | ||
80301cdc KV |
418 | if (wl->state != WL1251_STATE_OFF) { |
419 | wl1251_error("cannot start because not in off state: %d", | |
2f01a1f5 KV |
420 | wl->state); |
421 | ret = -EBUSY; | |
422 | goto out; | |
423 | } | |
424 | ||
80301cdc | 425 | ret = wl1251_chip_wakeup(wl); |
2f01a1f5 | 426 | if (ret < 0) |
fe643414 | 427 | goto out; |
2f01a1f5 | 428 | |
0e71bb08 | 429 | ret = wl1251_boot(wl); |
2f01a1f5 KV |
430 | if (ret < 0) |
431 | goto out; | |
432 | ||
0e71bb08 | 433 | ret = wl1251_hw_init(wl); |
2f01a1f5 KV |
434 | if (ret < 0) |
435 | goto out; | |
436 | ||
80301cdc | 437 | ret = wl1251_acx_station_id(wl); |
2f01a1f5 KV |
438 | if (ret < 0) |
439 | goto out; | |
440 | ||
80301cdc | 441 | wl->state = WL1251_STATE_ON; |
2f01a1f5 | 442 | |
0e71bb08 | 443 | wl1251_info("firmware booted (%s)", wl->fw_ver); |
2f01a1f5 | 444 | |
8b28e822 JL |
445 | /* update hw/fw version info in wiphy struct */ |
446 | wiphy->hw_version = wl->chip_id; | |
447 | strncpy(wiphy->fw_version, wl->fw_ver, sizeof(wiphy->fw_version)); | |
448 | ||
2f01a1f5 KV |
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) { | |
2f01a1f5 | 471 | ieee80211_scan_completed(wl->hw, true); |
2f01a1f5 KV |
472 | wl->scanning = false; |
473 | } | |
474 | ||
80301cdc | 475 | wl->state = WL1251_STATE_OFF; |
2f01a1f5 | 476 | |
80301cdc | 477 | wl1251_disable_interrupts(wl); |
2f01a1f5 KV |
478 | |
479 | mutex_unlock(&wl->mutex); | |
480 | ||
481 | cancel_work_sync(&wl->irq_work); | |
482 | cancel_work_sync(&wl->tx_work); | |
483 | cancel_work_sync(&wl->filter_work); | |
484 | ||
485 | mutex_lock(&wl->mutex); | |
486 | ||
487 | /* let's notify MAC80211 about the remaining pending TX frames */ | |
0e71bb08 | 488 | wl1251_tx_flush(wl); |
80301cdc | 489 | wl1251_power_off(wl); |
2f01a1f5 KV |
490 | |
491 | memset(wl->bssid, 0, ETH_ALEN); | |
492 | wl->listen_int = 1; | |
493 | wl->bss_type = MAX_BSS_TYPE; | |
494 | ||
495 | wl->data_in_count = 0; | |
496 | wl->rx_counter = 0; | |
497 | wl->rx_handled = 0; | |
498 | wl->rx_current_buffer = 0; | |
499 | wl->rx_last_id = 0; | |
500 | wl->next_tx_complete = 0; | |
501 | wl->elp = false; | |
502 | wl->psm = 0; | |
503 | wl->tx_queue_stopped = false; | |
80301cdc | 504 | wl->power_level = WL1251_DEFAULT_POWER_LEVEL; |
9780279c | 505 | wl->channel = WL1251_DEFAULT_CHANNEL; |
2f01a1f5 | 506 | |
80301cdc | 507 | wl1251_debugfs_reset(wl); |
2f01a1f5 KV |
508 | |
509 | mutex_unlock(&wl->mutex); | |
510 | } | |
511 | ||
80301cdc | 512 | static int wl1251_op_add_interface(struct ieee80211_hw *hw, |
1ed32e4f | 513 | struct ieee80211_vif *vif) |
2f01a1f5 | 514 | { |
80301cdc | 515 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
516 | int ret = 0; |
517 | ||
e91d8334 | 518 | wl1251_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM", |
1ed32e4f | 519 | vif->type, vif->addr); |
2f01a1f5 KV |
520 | |
521 | mutex_lock(&wl->mutex); | |
287f6f96 JO |
522 | if (wl->vif) { |
523 | ret = -EBUSY; | |
524 | goto out; | |
525 | } | |
526 | ||
1ed32e4f | 527 | wl->vif = vif; |
2f01a1f5 | 528 | |
1ed32e4f | 529 | switch (vif->type) { |
2f01a1f5 KV |
530 | case NL80211_IFTYPE_STATION: |
531 | wl->bss_type = BSS_TYPE_STA_BSS; | |
532 | break; | |
533 | case NL80211_IFTYPE_ADHOC: | |
534 | wl->bss_type = BSS_TYPE_IBSS; | |
535 | break; | |
536 | default: | |
537 | ret = -EOPNOTSUPP; | |
538 | goto out; | |
539 | } | |
540 | ||
1ed32e4f JB |
541 | if (memcmp(wl->mac_addr, vif->addr, ETH_ALEN)) { |
542 | memcpy(wl->mac_addr, vif->addr, ETH_ALEN); | |
2f01a1f5 | 543 | SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr); |
80301cdc | 544 | ret = wl1251_acx_station_id(wl); |
2f01a1f5 KV |
545 | if (ret < 0) |
546 | goto out; | |
547 | } | |
548 | ||
549 | out: | |
550 | mutex_unlock(&wl->mutex); | |
551 | return ret; | |
552 | } | |
553 | ||
80301cdc | 554 | static void wl1251_op_remove_interface(struct ieee80211_hw *hw, |
1ed32e4f | 555 | struct ieee80211_vif *vif) |
2f01a1f5 | 556 | { |
287f6f96 JO |
557 | struct wl1251 *wl = hw->priv; |
558 | ||
559 | mutex_lock(&wl->mutex); | |
80301cdc | 560 | wl1251_debug(DEBUG_MAC80211, "mac80211 remove interface"); |
287f6f96 JO |
561 | wl->vif = NULL; |
562 | mutex_unlock(&wl->mutex); | |
2f01a1f5 KV |
563 | } |
564 | ||
8f8ff916 KV |
565 | static int wl1251_build_qos_null_data(struct wl1251 *wl) |
566 | { | |
567 | struct ieee80211_qos_hdr template; | |
568 | ||
569 | memset(&template, 0, sizeof(template)); | |
570 | ||
571 | memcpy(template.addr1, wl->bssid, ETH_ALEN); | |
572 | memcpy(template.addr2, wl->mac_addr, ETH_ALEN); | |
573 | memcpy(template.addr3, wl->bssid, ETH_ALEN); | |
574 | ||
575 | template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | | |
576 | IEEE80211_STYPE_QOS_NULLFUNC | | |
577 | IEEE80211_FCTL_TODS); | |
578 | ||
579 | /* FIXME: not sure what priority to use here */ | |
580 | template.qos_ctrl = cpu_to_le16(0); | |
581 | ||
582 | return wl1251_cmd_template_set(wl, CMD_QOS_NULL_DATA, &template, | |
583 | sizeof(template)); | |
584 | } | |
585 | ||
80301cdc | 586 | static int wl1251_op_config(struct ieee80211_hw *hw, u32 changed) |
2f01a1f5 | 587 | { |
80301cdc | 588 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
589 | struct ieee80211_conf *conf = &hw->conf; |
590 | int channel, ret = 0; | |
591 | ||
592 | channel = ieee80211_frequency_to_channel(conf->channel->center_freq); | |
593 | ||
80301cdc | 594 | wl1251_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d", |
2f01a1f5 KV |
595 | channel, |
596 | conf->flags & IEEE80211_CONF_PS ? "on" : "off", | |
597 | conf->power_level); | |
598 | ||
599 | mutex_lock(&wl->mutex); | |
600 | ||
80301cdc | 601 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
602 | if (ret < 0) |
603 | goto out; | |
01d9cfbd | 604 | |
2f01a1f5 | 605 | if (channel != wl->channel) { |
fe9a9846 KV |
606 | wl->channel = channel; |
607 | ||
ae46ae17 KV |
608 | ret = wl1251_join(wl, wl->bss_type, wl->channel, |
609 | wl->beacon_int, wl->dtim_period); | |
2f01a1f5 | 610 | if (ret < 0) |
c5483b71 | 611 | goto out_sleep; |
2f01a1f5 KV |
612 | } |
613 | ||
2f01a1f5 | 614 | if (conf->flags & IEEE80211_CONF_PS && !wl->psm_requested) { |
47af3fe3 | 615 | wl1251_debug(DEBUG_PSM, "psm enabled"); |
2f01a1f5 KV |
616 | |
617 | wl->psm_requested = true; | |
618 | ||
56007a02 JB |
619 | wl->dtim_period = conf->ps_dtim_period; |
620 | ||
621 | ret = wl1251_acx_wr_tbtt_and_dtim(wl, wl->beacon_int, | |
622 | wl->dtim_period); | |
623 | ||
2f01a1f5 | 624 | /* |
56007a02 | 625 | * mac80211 enables PSM only if we're already associated. |
2f01a1f5 | 626 | */ |
80301cdc | 627 | ret = wl1251_ps_set_mode(wl, STATION_POWER_SAVE_MODE); |
478fdf2b KV |
628 | if (ret < 0) |
629 | goto out_sleep; | |
2f01a1f5 KV |
630 | } else if (!(conf->flags & IEEE80211_CONF_PS) && |
631 | wl->psm_requested) { | |
47af3fe3 | 632 | wl1251_debug(DEBUG_PSM, "psm disabled"); |
2f01a1f5 KV |
633 | |
634 | wl->psm_requested = false; | |
635 | ||
478fdf2b | 636 | if (wl->psm) { |
80301cdc | 637 | ret = wl1251_ps_set_mode(wl, STATION_ACTIVE_MODE); |
478fdf2b KV |
638 | if (ret < 0) |
639 | goto out_sleep; | |
640 | } | |
2f01a1f5 KV |
641 | } |
642 | ||
643 | if (conf->power_level != wl->power_level) { | |
80301cdc | 644 | ret = wl1251_acx_tx_power(wl, conf->power_level); |
2f01a1f5 | 645 | if (ret < 0) |
478fdf2b | 646 | goto out_sleep; |
2f01a1f5 KV |
647 | |
648 | wl->power_level = conf->power_level; | |
649 | } | |
650 | ||
c5483b71 | 651 | out_sleep: |
80301cdc | 652 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
653 | |
654 | out: | |
2f01a1f5 | 655 | mutex_unlock(&wl->mutex); |
c5483b71 | 656 | |
2f01a1f5 KV |
657 | return ret; |
658 | } | |
659 | ||
80301cdc | 660 | #define WL1251_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \ |
2f01a1f5 KV |
661 | FIF_ALLMULTI | \ |
662 | FIF_FCSFAIL | \ | |
663 | FIF_BCN_PRBRESP_PROMISC | \ | |
664 | FIF_CONTROL | \ | |
665 | FIF_OTHER_BSS) | |
666 | ||
80301cdc | 667 | static void wl1251_op_configure_filter(struct ieee80211_hw *hw, |
2f01a1f5 | 668 | unsigned int changed, |
3ac64bee | 669 | unsigned int *total,u64 multicast) |
2f01a1f5 | 670 | { |
80301cdc | 671 | struct wl1251 *wl = hw->priv; |
2f01a1f5 | 672 | |
80301cdc | 673 | wl1251_debug(DEBUG_MAC80211, "mac80211 configure filter"); |
2f01a1f5 | 674 | |
80301cdc KV |
675 | *total &= WL1251_SUPPORTED_FILTERS; |
676 | changed &= WL1251_SUPPORTED_FILTERS; | |
2f01a1f5 KV |
677 | |
678 | if (changed == 0) | |
679 | /* no filters which we support changed */ | |
680 | return; | |
681 | ||
682 | /* FIXME: wl->rx_config and wl->rx_filter are not protected */ | |
683 | ||
80301cdc KV |
684 | wl->rx_config = WL1251_DEFAULT_RX_CONFIG; |
685 | wl->rx_filter = WL1251_DEFAULT_RX_FILTER; | |
2f01a1f5 KV |
686 | |
687 | if (*total & FIF_PROMISC_IN_BSS) { | |
688 | wl->rx_config |= CFG_BSSID_FILTER_EN; | |
689 | wl->rx_config |= CFG_RX_ALL_GOOD; | |
690 | } | |
691 | if (*total & FIF_ALLMULTI) | |
692 | /* | |
693 | * CFG_MC_FILTER_EN in rx_config needs to be 0 to receive | |
694 | * all multicast frames | |
695 | */ | |
696 | wl->rx_config &= ~CFG_MC_FILTER_EN; | |
697 | if (*total & FIF_FCSFAIL) | |
698 | wl->rx_filter |= CFG_RX_FCS_ERROR; | |
699 | if (*total & FIF_BCN_PRBRESP_PROMISC) { | |
700 | wl->rx_config &= ~CFG_BSSID_FILTER_EN; | |
701 | wl->rx_config &= ~CFG_SSID_FILTER_EN; | |
702 | } | |
703 | if (*total & FIF_CONTROL) | |
704 | wl->rx_filter |= CFG_RX_CTL_EN; | |
705 | if (*total & FIF_OTHER_BSS) | |
706 | wl->rx_filter &= ~CFG_BSSID_FILTER_EN; | |
707 | ||
708 | /* | |
709 | * FIXME: workqueues need to be properly cancelled on stop(), for | |
710 | * now let's just disable changing the filter settings. They will | |
711 | * be updated any on config(). | |
712 | */ | |
713 | /* schedule_work(&wl->filter_work); */ | |
714 | } | |
715 | ||
716 | /* HW encryption */ | |
80301cdc KV |
717 | static int wl1251_set_key_type(struct wl1251 *wl, |
718 | struct wl1251_cmd_set_keys *key, | |
2f01a1f5 KV |
719 | enum set_key_cmd cmd, |
720 | struct ieee80211_key_conf *mac80211_key, | |
721 | const u8 *addr) | |
722 | { | |
97359d12 JB |
723 | switch (mac80211_key->cipher) { |
724 | case WLAN_CIPHER_SUITE_WEP40: | |
725 | case WLAN_CIPHER_SUITE_WEP104: | |
2f01a1f5 KV |
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; | |
97359d12 | 733 | case WLAN_CIPHER_SUITE_TKIP: |
2f01a1f5 KV |
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; | |
97359d12 | 741 | case WLAN_CIPHER_SUITE_CCMP: |
2f01a1f5 KV |
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: | |
97359d12 | 749 | wl1251_error("Unknown key cipher 0x%x", mac80211_key->cipher); |
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", | |
97359d12 | 782 | key->cipher, 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); | |
4d048aac JJ |
1042 | if (!beacon) |
1043 | goto out_sleep; | |
1044 | ||
80301cdc | 1045 | ret = wl1251_cmd_template_set(wl, CMD_BEACON, beacon->data, |
2f01a1f5 KV |
1046 | beacon->len); |
1047 | ||
1048 | if (ret < 0) { | |
1049 | dev_kfree_skb(beacon); | |
80a112ff | 1050 | goto out_sleep; |
2f01a1f5 KV |
1051 | } |
1052 | ||
80301cdc | 1053 | ret = wl1251_cmd_template_set(wl, CMD_PROBE_RESP, beacon->data, |
2f01a1f5 KV |
1054 | beacon->len); |
1055 | ||
1056 | dev_kfree_skb(beacon); | |
1057 | ||
1058 | if (ret < 0) | |
80a112ff | 1059 | goto out_sleep; |
2f01a1f5 | 1060 | |
ae46ae17 KV |
1061 | ret = wl1251_join(wl, wl->bss_type, wl->beacon_int, |
1062 | wl->channel, wl->dtim_period); | |
2f01a1f5 KV |
1063 | |
1064 | if (ret < 0) | |
80a112ff | 1065 | goto out_sleep; |
2f01a1f5 KV |
1066 | } |
1067 | ||
c5483b71 | 1068 | out_sleep: |
80301cdc | 1069 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
1070 | |
1071 | out: | |
2f01a1f5 KV |
1072 | mutex_unlock(&wl->mutex); |
1073 | } | |
1074 | ||
1075 | ||
1076 | /* can't be const, mac80211 writes to this */ | |
80301cdc | 1077 | static struct ieee80211_rate wl1251_rates[] = { |
2f01a1f5 KV |
1078 | { .bitrate = 10, |
1079 | .hw_value = 0x1, | |
1080 | .hw_value_short = 0x1, }, | |
1081 | { .bitrate = 20, | |
1082 | .hw_value = 0x2, | |
1083 | .hw_value_short = 0x2, | |
1084 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
1085 | { .bitrate = 55, | |
1086 | .hw_value = 0x4, | |
1087 | .hw_value_short = 0x4, | |
1088 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
1089 | { .bitrate = 110, | |
1090 | .hw_value = 0x20, | |
1091 | .hw_value_short = 0x20, | |
1092 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
1093 | { .bitrate = 60, | |
1094 | .hw_value = 0x8, | |
1095 | .hw_value_short = 0x8, }, | |
1096 | { .bitrate = 90, | |
1097 | .hw_value = 0x10, | |
1098 | .hw_value_short = 0x10, }, | |
1099 | { .bitrate = 120, | |
1100 | .hw_value = 0x40, | |
1101 | .hw_value_short = 0x40, }, | |
1102 | { .bitrate = 180, | |
1103 | .hw_value = 0x80, | |
1104 | .hw_value_short = 0x80, }, | |
1105 | { .bitrate = 240, | |
1106 | .hw_value = 0x200, | |
1107 | .hw_value_short = 0x200, }, | |
1108 | { .bitrate = 360, | |
1109 | .hw_value = 0x400, | |
1110 | .hw_value_short = 0x400, }, | |
1111 | { .bitrate = 480, | |
1112 | .hw_value = 0x800, | |
1113 | .hw_value_short = 0x800, }, | |
1114 | { .bitrate = 540, | |
1115 | .hw_value = 0x1000, | |
1116 | .hw_value_short = 0x1000, }, | |
1117 | }; | |
1118 | ||
1119 | /* can't be const, mac80211 writes to this */ | |
80301cdc | 1120 | static struct ieee80211_channel wl1251_channels[] = { |
2f01a1f5 KV |
1121 | { .hw_value = 1, .center_freq = 2412}, |
1122 | { .hw_value = 2, .center_freq = 2417}, | |
1123 | { .hw_value = 3, .center_freq = 2422}, | |
1124 | { .hw_value = 4, .center_freq = 2427}, | |
1125 | { .hw_value = 5, .center_freq = 2432}, | |
1126 | { .hw_value = 6, .center_freq = 2437}, | |
1127 | { .hw_value = 7, .center_freq = 2442}, | |
1128 | { .hw_value = 8, .center_freq = 2447}, | |
1129 | { .hw_value = 9, .center_freq = 2452}, | |
1130 | { .hw_value = 10, .center_freq = 2457}, | |
1131 | { .hw_value = 11, .center_freq = 2462}, | |
1132 | { .hw_value = 12, .center_freq = 2467}, | |
1133 | { .hw_value = 13, .center_freq = 2472}, | |
1134 | }; | |
1135 | ||
86dff7a7 KV |
1136 | static int wl1251_op_conf_tx(struct ieee80211_hw *hw, u16 queue, |
1137 | const struct ieee80211_tx_queue_params *params) | |
1138 | { | |
4ff6ffa1 | 1139 | enum wl1251_acx_ps_scheme ps_scheme; |
86dff7a7 KV |
1140 | struct wl1251 *wl = hw->priv; |
1141 | int ret; | |
1142 | ||
1143 | mutex_lock(&wl->mutex); | |
1144 | ||
1145 | wl1251_debug(DEBUG_MAC80211, "mac80211 conf tx %d", queue); | |
1146 | ||
1147 | ret = wl1251_ps_elp_wakeup(wl); | |
1148 | if (ret < 0) | |
1149 | goto out; | |
1150 | ||
85359499 | 1151 | /* mac80211 uses units of 32 usec */ |
86dff7a7 KV |
1152 | ret = wl1251_acx_ac_cfg(wl, wl1251_tx_get_queue(queue), |
1153 | params->cw_min, params->cw_max, | |
85359499 | 1154 | params->aifs, params->txop * 32); |
27336f1c KV |
1155 | if (ret < 0) |
1156 | goto out_sleep; | |
1157 | ||
4ff6ffa1 KV |
1158 | if (params->uapsd) |
1159 | ps_scheme = WL1251_ACX_PS_SCHEME_UPSD_TRIGGER; | |
1160 | else | |
1161 | ps_scheme = WL1251_ACX_PS_SCHEME_LEGACY; | |
1162 | ||
27336f1c | 1163 | ret = wl1251_acx_tid_cfg(wl, wl1251_tx_get_queue(queue), |
49e1b9fa | 1164 | CHANNEL_TYPE_EDCF, |
4ff6ffa1 | 1165 | wl1251_tx_get_queue(queue), ps_scheme, |
27336f1c KV |
1166 | WL1251_ACX_ACK_POLICY_LEGACY); |
1167 | if (ret < 0) | |
1168 | goto out_sleep; | |
86dff7a7 | 1169 | |
27336f1c | 1170 | out_sleep: |
86dff7a7 KV |
1171 | wl1251_ps_elp_sleep(wl); |
1172 | ||
1173 | out: | |
1174 | mutex_unlock(&wl->mutex); | |
1175 | ||
1176 | return ret; | |
1177 | } | |
1178 | ||
19434148 JL |
1179 | static int wl1251_op_get_survey(struct ieee80211_hw *hw, int idx, |
1180 | struct survey_info *survey) | |
1181 | { | |
1182 | struct wl1251 *wl = hw->priv; | |
1183 | struct ieee80211_conf *conf = &hw->conf; | |
1184 | ||
1185 | if (idx != 0) | |
1186 | return -ENOENT; | |
1187 | ||
1188 | survey->channel = conf->channel; | |
1189 | survey->filled = SURVEY_INFO_NOISE_DBM; | |
1190 | survey->noise = wl->noise; | |
1191 | ||
1192 | return 0; | |
1193 | } | |
1194 | ||
2f01a1f5 | 1195 | /* can't be const, mac80211 writes to this */ |
80301cdc KV |
1196 | static struct ieee80211_supported_band wl1251_band_2ghz = { |
1197 | .channels = wl1251_channels, | |
1198 | .n_channels = ARRAY_SIZE(wl1251_channels), | |
1199 | .bitrates = wl1251_rates, | |
1200 | .n_bitrates = ARRAY_SIZE(wl1251_rates), | |
2f01a1f5 KV |
1201 | }; |
1202 | ||
80301cdc KV |
1203 | static const struct ieee80211_ops wl1251_ops = { |
1204 | .start = wl1251_op_start, | |
1205 | .stop = wl1251_op_stop, | |
1206 | .add_interface = wl1251_op_add_interface, | |
1207 | .remove_interface = wl1251_op_remove_interface, | |
1208 | .config = wl1251_op_config, | |
1209 | .configure_filter = wl1251_op_configure_filter, | |
1210 | .tx = wl1251_op_tx, | |
1211 | .set_key = wl1251_op_set_key, | |
1212 | .hw_scan = wl1251_op_hw_scan, | |
1213 | .bss_info_changed = wl1251_op_bss_info_changed, | |
1214 | .set_rts_threshold = wl1251_op_set_rts_threshold, | |
86dff7a7 | 1215 | .conf_tx = wl1251_op_conf_tx, |
19434148 | 1216 | .get_survey = wl1251_op_get_survey, |
2f01a1f5 KV |
1217 | }; |
1218 | ||
61c2a80b GI |
1219 | static int wl1251_read_eeprom_byte(struct wl1251 *wl, off_t offset, u8 *data) |
1220 | { | |
1221 | unsigned long timeout; | |
1222 | ||
1223 | wl1251_reg_write32(wl, EE_ADDR, offset); | |
1224 | wl1251_reg_write32(wl, EE_CTL, EE_CTL_READ); | |
1225 | ||
1226 | /* EE_CTL_READ clears when data is ready */ | |
1227 | timeout = jiffies + msecs_to_jiffies(100); | |
1228 | while (1) { | |
1229 | if (!(wl1251_reg_read32(wl, EE_CTL) & EE_CTL_READ)) | |
1230 | break; | |
1231 | ||
1232 | if (time_after(jiffies, timeout)) | |
1233 | return -ETIMEDOUT; | |
1234 | ||
1235 | msleep(1); | |
1236 | } | |
1237 | ||
1238 | *data = wl1251_reg_read32(wl, EE_DATA); | |
1239 | return 0; | |
1240 | } | |
1241 | ||
1242 | static int wl1251_read_eeprom(struct wl1251 *wl, off_t offset, | |
1243 | u8 *data, size_t len) | |
1244 | { | |
1245 | size_t i; | |
1246 | int ret; | |
1247 | ||
1248 | wl1251_reg_write32(wl, EE_START, 0); | |
1249 | ||
1250 | for (i = 0; i < len; i++) { | |
1251 | ret = wl1251_read_eeprom_byte(wl, offset + i, &data[i]); | |
1252 | if (ret < 0) | |
1253 | return ret; | |
1254 | } | |
1255 | ||
1256 | return 0; | |
1257 | } | |
1258 | ||
1259 | static int wl1251_read_eeprom_mac(struct wl1251 *wl) | |
1260 | { | |
1261 | u8 mac[ETH_ALEN]; | |
1262 | int i, ret; | |
1263 | ||
1264 | wl1251_set_partition(wl, 0, 0, REGISTERS_BASE, REGISTERS_DOWN_SIZE); | |
1265 | ||
1266 | ret = wl1251_read_eeprom(wl, 0x1c, mac, sizeof(mac)); | |
1267 | if (ret < 0) { | |
1268 | wl1251_warning("failed to read MAC address from EEPROM"); | |
1269 | return ret; | |
1270 | } | |
1271 | ||
1272 | /* MAC is stored in reverse order */ | |
1273 | for (i = 0; i < ETH_ALEN; i++) | |
1274 | wl->mac_addr[i] = mac[ETH_ALEN - i - 1]; | |
1275 | ||
1276 | return 0; | |
1277 | } | |
1278 | ||
80301cdc | 1279 | static int wl1251_register_hw(struct wl1251 *wl) |
2f01a1f5 KV |
1280 | { |
1281 | int ret; | |
1282 | ||
1283 | if (wl->mac80211_registered) | |
1284 | return 0; | |
1285 | ||
1286 | SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr); | |
1287 | ||
1288 | ret = ieee80211_register_hw(wl->hw); | |
1289 | if (ret < 0) { | |
80301cdc | 1290 | wl1251_error("unable to register mac80211 hw: %d", ret); |
2f01a1f5 KV |
1291 | return ret; |
1292 | } | |
1293 | ||
1294 | wl->mac80211_registered = true; | |
1295 | ||
80301cdc | 1296 | wl1251_notice("loaded"); |
2f01a1f5 KV |
1297 | |
1298 | return 0; | |
1299 | } | |
1300 | ||
8e639c06 | 1301 | int wl1251_init_ieee80211(struct wl1251 *wl) |
2f01a1f5 | 1302 | { |
8e639c06 BC |
1303 | int ret; |
1304 | ||
2f01a1f5 KV |
1305 | /* The tx descriptor buffer and the TKIP space */ |
1306 | wl->hw->extra_tx_headroom = sizeof(struct tx_double_buffer_desc) | |
9f2ad4fb | 1307 | + WL1251_TKIP_IV_SPACE; |
2f01a1f5 KV |
1308 | |
1309 | /* unit us */ | |
1310 | /* FIXME: find a proper value */ | |
1311 | wl->hw->channel_change_time = 10000; | |
1312 | ||
1313 | wl->hw->flags = IEEE80211_HW_SIGNAL_DBM | | |
6b21a2cd | 1314 | IEEE80211_HW_SUPPORTS_PS | |
4ff6ffa1 KV |
1315 | IEEE80211_HW_BEACON_FILTER | |
1316 | IEEE80211_HW_SUPPORTS_UAPSD; | |
2f01a1f5 KV |
1317 | |
1318 | wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); | |
1319 | wl->hw->wiphy->max_scan_ssids = 1; | |
80301cdc | 1320 | wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl1251_band_2ghz; |
2f01a1f5 | 1321 | |
da2fb4e9 KV |
1322 | wl->hw->queues = 4; |
1323 | ||
61c2a80b GI |
1324 | if (wl->use_eeprom) |
1325 | wl1251_read_eeprom_mac(wl); | |
1326 | ||
8e639c06 BC |
1327 | ret = wl1251_register_hw(wl); |
1328 | if (ret) | |
1329 | goto out; | |
2f01a1f5 | 1330 | |
8e639c06 BC |
1331 | wl1251_debugfs_init(wl); |
1332 | wl1251_notice("initialized"); | |
2f01a1f5 | 1333 | |
8e639c06 BC |
1334 | ret = 0; |
1335 | ||
1336 | out: | |
1337 | return ret; | |
1338 | } | |
af8c78eb | 1339 | EXPORT_SYMBOL_GPL(wl1251_init_ieee80211); |
08d9f572 | 1340 | |
8e639c06 | 1341 | struct ieee80211_hw *wl1251_alloc_hw(void) |
2f01a1f5 | 1342 | { |
2f01a1f5 | 1343 | struct ieee80211_hw *hw; |
80301cdc | 1344 | struct wl1251 *wl; |
8e639c06 | 1345 | int i; |
2f01a1f5 KV |
1346 | static const u8 nokia_oui[3] = {0x00, 0x1f, 0xdf}; |
1347 | ||
80301cdc | 1348 | hw = ieee80211_alloc_hw(sizeof(*wl), &wl1251_ops); |
2f01a1f5 | 1349 | if (!hw) { |
80301cdc | 1350 | wl1251_error("could not alloc ieee80211_hw"); |
8e639c06 | 1351 | return ERR_PTR(-ENOMEM); |
2f01a1f5 KV |
1352 | } |
1353 | ||
1354 | wl = hw->priv; | |
1355 | memset(wl, 0, sizeof(*wl)); | |
1356 | ||
1357 | wl->hw = hw; | |
2f01a1f5 KV |
1358 | |
1359 | wl->data_in_count = 0; | |
1360 | ||
1361 | skb_queue_head_init(&wl->tx_queue); | |
1362 | ||
80301cdc | 1363 | INIT_WORK(&wl->filter_work, wl1251_filter_work); |
d5da79ac | 1364 | INIT_DELAYED_WORK(&wl->elp_work, wl1251_elp_work); |
80301cdc | 1365 | wl->channel = WL1251_DEFAULT_CHANNEL; |
2f01a1f5 KV |
1366 | wl->scanning = false; |
1367 | wl->default_key = 0; | |
1368 | wl->listen_int = 1; | |
1369 | wl->rx_counter = 0; | |
1370 | wl->rx_handled = 0; | |
1371 | wl->rx_current_buffer = 0; | |
1372 | wl->rx_last_id = 0; | |
80301cdc KV |
1373 | wl->rx_config = WL1251_DEFAULT_RX_CONFIG; |
1374 | wl->rx_filter = WL1251_DEFAULT_RX_FILTER; | |
2f01a1f5 KV |
1375 | wl->elp = false; |
1376 | wl->psm = 0; | |
1377 | wl->psm_requested = false; | |
1378 | wl->tx_queue_stopped = false; | |
80301cdc | 1379 | wl->power_level = WL1251_DEFAULT_POWER_LEVEL; |
e2fd4611 KV |
1380 | wl->beacon_int = WL1251_DEFAULT_BEACON_INT; |
1381 | wl->dtim_period = WL1251_DEFAULT_DTIM_PERIOD; | |
287f6f96 | 1382 | wl->vif = NULL; |
2f01a1f5 | 1383 | |
2f01a1f5 KV |
1384 | for (i = 0; i < FW_TX_CMPLT_BLOCK_SIZE; i++) |
1385 | wl->tx_frames[i] = NULL; | |
1386 | ||
1387 | wl->next_tx_complete = 0; | |
1388 | ||
0e71bb08 KV |
1389 | INIT_WORK(&wl->irq_work, wl1251_irq_work); |
1390 | INIT_WORK(&wl->tx_work, wl1251_tx_work); | |
1391 | ||
2f01a1f5 KV |
1392 | /* |
1393 | * In case our MAC address is not correctly set, | |
1394 | * we use a random but Nokia MAC. | |
1395 | */ | |
1396 | memcpy(wl->mac_addr, nokia_oui, 3); | |
1397 | get_random_bytes(wl->mac_addr + 3, 3); | |
1398 | ||
80301cdc | 1399 | wl->state = WL1251_STATE_OFF; |
2f01a1f5 KV |
1400 | mutex_init(&wl->mutex); |
1401 | ||
1402 | wl->tx_mgmt_frm_rate = DEFAULT_HW_GEN_TX_RATE; | |
1403 | wl->tx_mgmt_frm_mod = DEFAULT_HW_GEN_MODULATION_TYPE; | |
1404 | ||
4721213f KV |
1405 | wl->rx_descriptor = kmalloc(sizeof(*wl->rx_descriptor), GFP_KERNEL); |
1406 | if (!wl->rx_descriptor) { | |
80301cdc | 1407 | wl1251_error("could not allocate memory for rx descriptor"); |
8e639c06 BC |
1408 | ieee80211_free_hw(hw); |
1409 | return ERR_PTR(-ENOMEM); | |
4721213f KV |
1410 | } |
1411 | ||
8e639c06 | 1412 | return hw; |
2f01a1f5 | 1413 | } |
af8c78eb | 1414 | EXPORT_SYMBOL_GPL(wl1251_alloc_hw); |
2f01a1f5 | 1415 | |
8e639c06 | 1416 | int wl1251_free_hw(struct wl1251 *wl) |
2f01a1f5 | 1417 | { |
2f01a1f5 KV |
1418 | ieee80211_unregister_hw(wl->hw); |
1419 | ||
80301cdc | 1420 | wl1251_debugfs_exit(wl); |
2f01a1f5 | 1421 | |
2f01a1f5 KV |
1422 | kfree(wl->target_mem_map); |
1423 | kfree(wl->data_path); | |
c74ddfd5 | 1424 | vfree(wl->fw); |
2f01a1f5 KV |
1425 | wl->fw = NULL; |
1426 | kfree(wl->nvs); | |
1427 | wl->nvs = NULL; | |
4721213f KV |
1428 | |
1429 | kfree(wl->rx_descriptor); | |
1430 | wl->rx_descriptor = NULL; | |
1431 | ||
2f01a1f5 KV |
1432 | ieee80211_free_hw(wl->hw); |
1433 | ||
1434 | return 0; | |
1435 | } | |
af8c78eb BC |
1436 | EXPORT_SYMBOL_GPL(wl1251_free_hw); |
1437 | ||
1438 | MODULE_DESCRIPTION("TI wl1251 Wireles LAN Driver Core"); | |
1439 | MODULE_LICENSE("GPL"); | |
31c726f0 | 1440 | MODULE_AUTHOR("Kalle Valo <kvalo@adurom.com>"); |
49f146de | 1441 | MODULE_FIRMWARE(WL1251_FW_NAME); |