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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 | * | |
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> |
9ed74ba0 | 31 | #include <linux/netdevice.h> |
2f01a1f5 | 32 | |
13674118 | 33 | #include "wl1251.h" |
2f01a1f5 | 34 | #include "wl12xx_80211.h" |
9bc6772e KV |
35 | #include "reg.h" |
36 | #include "io.h" | |
37 | #include "cmd.h" | |
38 | #include "event.h" | |
39 | #include "tx.h" | |
40 | #include "rx.h" | |
41 | #include "ps.h" | |
42 | #include "init.h" | |
43 | #include "debugfs.h" | |
44 | #include "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 | ||
cb7bbc7a | 56 | static int wl1251_power_off(struct wl1251 *wl) |
2f01a1f5 | 57 | { |
cb7bbc7a | 58 | return wl->if_ops->power(wl, false); |
2f01a1f5 KV |
59 | } |
60 | ||
cb7bbc7a | 61 | static int wl1251_power_on(struct wl1251 *wl) |
2f01a1f5 | 62 | { |
cb7bbc7a | 63 | return wl->if_ops->power(wl, true); |
2f01a1f5 KV |
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; | |
80caf601 | 126 | wl->nvs = kmemdup(fw->data, wl->nvs_len, GFP_KERNEL); |
2f01a1f5 KV |
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 | ||
2f01a1f5 KV |
134 | ret = 0; |
135 | ||
136 | out: | |
137 | release_firmware(fw); | |
138 | ||
139 | return ret; | |
140 | } | |
141 | ||
80301cdc | 142 | static void wl1251_fw_wakeup(struct wl1251 *wl) |
2f01a1f5 KV |
143 | { |
144 | u32 elp_reg; | |
145 | ||
146 | elp_reg = ELPCTRL_WAKE_UP; | |
3f9e750d GI |
147 | wl1251_write_elp(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg); |
148 | elp_reg = wl1251_read_elp(wl, HW_ACCESS_ELP_CTRL_REG_ADDR); | |
2f01a1f5 | 149 | |
05fac682 | 150 | if (!(elp_reg & ELPCTRL_WLAN_READY)) |
80301cdc | 151 | wl1251_warning("WLAN not ready"); |
2f01a1f5 KV |
152 | } |
153 | ||
80301cdc | 154 | static int wl1251_chip_wakeup(struct wl1251 *wl) |
2f01a1f5 | 155 | { |
cb7bbc7a GI |
156 | int ret; |
157 | ||
158 | ret = wl1251_power_on(wl); | |
159 | if (ret < 0) | |
160 | return ret; | |
2f01a1f5 | 161 | |
0e71bb08 | 162 | msleep(WL1251_POWER_ON_SLEEP); |
08d9f572 | 163 | wl->if_ops->reset(wl); |
2f01a1f5 KV |
164 | |
165 | /* We don't need a real memory partition here, because we only want | |
166 | * to use the registers at this point. */ | |
80301cdc | 167 | wl1251_set_partition(wl, |
2f01a1f5 KV |
168 | 0x00000000, |
169 | 0x00000000, | |
170 | REGISTERS_BASE, | |
171 | REGISTERS_DOWN_SIZE); | |
172 | ||
173 | /* ELP module wake up */ | |
80301cdc | 174 | wl1251_fw_wakeup(wl); |
2f01a1f5 KV |
175 | |
176 | /* whal_FwCtrl_BootSm() */ | |
177 | ||
178 | /* 0. read chip id from CHIP_ID */ | |
0e71bb08 | 179 | wl->chip_id = wl1251_reg_read32(wl, CHIP_ID_B); |
2f01a1f5 KV |
180 | |
181 | /* 1. check if chip id is valid */ | |
182 | ||
0e71bb08 | 183 | switch (wl->chip_id) { |
2f01a1f5 | 184 | case CHIP_ID_1251_PG12: |
80301cdc | 185 | wl1251_debug(DEBUG_BOOT, "chip id 0x%x (1251 PG12)", |
0e71bb08 | 186 | wl->chip_id); |
2f01a1f5 | 187 | break; |
2f01a1f5 | 188 | case CHIP_ID_1251_PG11: |
2c759e03 DJW |
189 | wl1251_debug(DEBUG_BOOT, "chip id 0x%x (1251 PG11)", |
190 | wl->chip_id); | |
191 | break; | |
9a493e8f | 192 | case CHIP_ID_1251_PG10: |
2f01a1f5 | 193 | default: |
0e71bb08 | 194 | wl1251_error("unsupported chip id: 0x%x", wl->chip_id); |
2f01a1f5 KV |
195 | ret = -ENODEV; |
196 | goto out; | |
197 | } | |
198 | ||
199 | if (wl->fw == NULL) { | |
80301cdc | 200 | ret = wl1251_fetch_firmware(wl); |
2f01a1f5 KV |
201 | if (ret < 0) |
202 | goto out; | |
203 | } | |
204 | ||
afa5ec27 GI |
205 | if (wl->nvs == NULL && !wl->use_eeprom) { |
206 | /* No NVS from netlink, try to get it from the filesystem */ | |
80301cdc | 207 | ret = wl1251_fetch_nvs(wl); |
2f01a1f5 KV |
208 | if (ret < 0) |
209 | goto out; | |
210 | } | |
211 | ||
212 | out: | |
213 | return ret; | |
214 | } | |
215 | ||
dcea4dbe | 216 | #define WL1251_IRQ_LOOP_COUNT 10 |
0e71bb08 KV |
217 | static void wl1251_irq_work(struct work_struct *work) |
218 | { | |
dcea4dbe | 219 | u32 intr, ctr = WL1251_IRQ_LOOP_COUNT; |
0e71bb08 KV |
220 | struct wl1251 *wl = |
221 | container_of(work, struct wl1251, irq_work); | |
222 | int ret; | |
223 | ||
224 | mutex_lock(&wl->mutex); | |
225 | ||
226 | wl1251_debug(DEBUG_IRQ, "IRQ work"); | |
227 | ||
228 | if (wl->state == WL1251_STATE_OFF) | |
229 | goto out; | |
230 | ||
231 | ret = wl1251_ps_elp_wakeup(wl); | |
232 | if (ret < 0) | |
233 | goto out; | |
234 | ||
235 | wl1251_reg_write32(wl, ACX_REG_INTERRUPT_MASK, WL1251_ACX_INTR_ALL); | |
236 | ||
237 | intr = wl1251_reg_read32(wl, ACX_REG_INTERRUPT_CLEAR); | |
238 | wl1251_debug(DEBUG_IRQ, "intr: 0x%x", intr); | |
239 | ||
dcea4dbe JY |
240 | do { |
241 | if (wl->data_path) { | |
242 | wl->rx_counter = wl1251_mem_read32( | |
243 | wl, wl->data_path->rx_control_addr); | |
244 | ||
245 | /* We handle a frmware bug here */ | |
246 | switch ((wl->rx_counter - wl->rx_handled) & 0xf) { | |
247 | case 0: | |
248 | wl1251_debug(DEBUG_IRQ, | |
249 | "RX: FW and host in sync"); | |
250 | intr &= ~WL1251_ACX_INTR_RX0_DATA; | |
251 | intr &= ~WL1251_ACX_INTR_RX1_DATA; | |
252 | break; | |
253 | case 1: | |
254 | wl1251_debug(DEBUG_IRQ, "RX: FW +1"); | |
255 | intr |= WL1251_ACX_INTR_RX0_DATA; | |
256 | intr &= ~WL1251_ACX_INTR_RX1_DATA; | |
257 | break; | |
258 | case 2: | |
259 | wl1251_debug(DEBUG_IRQ, "RX: FW +2"); | |
260 | intr |= WL1251_ACX_INTR_RX0_DATA; | |
261 | intr |= WL1251_ACX_INTR_RX1_DATA; | |
262 | break; | |
263 | default: | |
264 | wl1251_warning( | |
265 | "RX: FW and host out of sync: %d", | |
266 | wl->rx_counter - wl->rx_handled); | |
267 | break; | |
268 | } | |
269 | ||
270 | wl->rx_handled = wl->rx_counter; | |
271 | ||
272 | wl1251_debug(DEBUG_IRQ, "RX counter: %d", | |
273 | wl->rx_counter); | |
0e71bb08 KV |
274 | } |
275 | ||
dcea4dbe | 276 | intr &= wl->intr_mask; |
0e71bb08 | 277 | |
dcea4dbe JY |
278 | if (intr == 0) { |
279 | wl1251_debug(DEBUG_IRQ, "INTR is 0"); | |
280 | goto out_sleep; | |
281 | } | |
0e71bb08 | 282 | |
dcea4dbe JY |
283 | if (intr & WL1251_ACX_INTR_RX0_DATA) { |
284 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_RX0_DATA"); | |
285 | wl1251_rx(wl); | |
286 | } | |
0e71bb08 | 287 | |
dcea4dbe JY |
288 | if (intr & WL1251_ACX_INTR_RX1_DATA) { |
289 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_RX1_DATA"); | |
290 | wl1251_rx(wl); | |
291 | } | |
0e71bb08 | 292 | |
dcea4dbe JY |
293 | if (intr & WL1251_ACX_INTR_TX_RESULT) { |
294 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_TX_RESULT"); | |
295 | wl1251_tx_complete(wl); | |
296 | } | |
0e71bb08 | 297 | |
d41776fa GI |
298 | if (intr & WL1251_ACX_INTR_EVENT_A) { |
299 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_EVENT_A"); | |
300 | wl1251_event_handle(wl, 0); | |
301 | } | |
302 | ||
303 | if (intr & WL1251_ACX_INTR_EVENT_B) { | |
304 | wl1251_debug(DEBUG_IRQ, "WL1251_ACX_INTR_EVENT_B"); | |
305 | wl1251_event_handle(wl, 1); | |
dcea4dbe | 306 | } |
0e71bb08 | 307 | |
dcea4dbe JY |
308 | if (intr & WL1251_ACX_INTR_INIT_COMPLETE) |
309 | wl1251_debug(DEBUG_IRQ, | |
310 | "WL1251_ACX_INTR_INIT_COMPLETE"); | |
0e71bb08 | 311 | |
79553f82 JO |
312 | if (--ctr == 0) |
313 | break; | |
0e71bb08 | 314 | |
79553f82 JO |
315 | intr = wl1251_reg_read32(wl, ACX_REG_INTERRUPT_CLEAR); |
316 | } while (intr); | |
0e71bb08 KV |
317 | |
318 | out_sleep: | |
dcea4dbe | 319 | wl1251_reg_write32(wl, ACX_REG_INTERRUPT_MASK, ~(wl->intr_mask)); |
0e71bb08 KV |
320 | wl1251_ps_elp_sleep(wl); |
321 | ||
322 | out: | |
323 | mutex_unlock(&wl->mutex); | |
324 | } | |
325 | ||
ae46ae17 KV |
326 | static int wl1251_join(struct wl1251 *wl, u8 bss_type, u8 channel, |
327 | u16 beacon_interval, u8 dtim_period) | |
328 | { | |
329 | int ret; | |
330 | ||
331 | ret = wl1251_acx_frame_rates(wl, DEFAULT_HW_GEN_TX_RATE, | |
332 | DEFAULT_HW_GEN_MODULATION_TYPE, | |
333 | wl->tx_mgmt_frm_rate, | |
334 | wl->tx_mgmt_frm_mod); | |
335 | if (ret < 0) | |
336 | goto out; | |
337 | ||
a2d2bb86 GI |
338 | /* |
339 | * Join command applies filters, and if we are not associated, | |
340 | * BSSID filter must be disabled for association to work. | |
341 | */ | |
342 | if (is_zero_ether_addr(wl->bssid)) | |
343 | wl->rx_config &= ~CFG_BSSID_FILTER_EN; | |
ae46ae17 KV |
344 | |
345 | ret = wl1251_cmd_join(wl, bss_type, channel, beacon_interval, | |
346 | dtim_period); | |
347 | if (ret < 0) | |
348 | goto out; | |
349 | ||
7273b970 GI |
350 | ret = wl1251_event_wait(wl, JOIN_EVENT_COMPLETE_ID, 100); |
351 | if (ret < 0) | |
352 | wl1251_warning("join timeout"); | |
ae46ae17 KV |
353 | |
354 | out: | |
355 | return ret; | |
356 | } | |
357 | ||
36323f81 TH |
358 | static void wl1251_op_tx(struct ieee80211_hw *hw, |
359 | struct ieee80211_tx_control *control, | |
360 | struct sk_buff *skb) | |
2f01a1f5 | 361 | { |
80301cdc | 362 | struct wl1251 *wl = hw->priv; |
9df86e2e | 363 | unsigned long flags; |
2f01a1f5 KV |
364 | |
365 | skb_queue_tail(&wl->tx_queue, skb); | |
366 | ||
9f2ad4fb JO |
367 | /* |
368 | * The chip specific setup must run before the first TX packet - | |
369 | * before that, the tx_work will not be initialized! | |
370 | */ | |
371 | ||
16e711f9 | 372 | ieee80211_queue_work(wl->hw, &wl->tx_work); |
2f01a1f5 KV |
373 | |
374 | /* | |
375 | * The workqueue is slow to process the tx_queue and we need stop | |
376 | * the queue here, otherwise the queue will get too long. | |
377 | */ | |
9df86e2e | 378 | if (skb_queue_len(&wl->tx_queue) >= WL1251_TX_QUEUE_HIGH_WATERMARK) { |
d67e2618 | 379 | wl1251_debug(DEBUG_TX, "op_tx: tx_queue full, stop queues"); |
2f01a1f5 | 380 | |
9df86e2e DGC |
381 | spin_lock_irqsave(&wl->wl_lock, flags); |
382 | ieee80211_stop_queues(wl->hw); | |
2f01a1f5 | 383 | wl->tx_queue_stopped = true; |
9df86e2e | 384 | spin_unlock_irqrestore(&wl->wl_lock, flags); |
2f01a1f5 | 385 | } |
2f01a1f5 KV |
386 | } |
387 | ||
80301cdc | 388 | static int wl1251_op_start(struct ieee80211_hw *hw) |
2f01a1f5 | 389 | { |
80301cdc | 390 | struct wl1251 *wl = hw->priv; |
8b28e822 | 391 | struct wiphy *wiphy = hw->wiphy; |
2f01a1f5 KV |
392 | int ret = 0; |
393 | ||
80301cdc | 394 | wl1251_debug(DEBUG_MAC80211, "mac80211 start"); |
2f01a1f5 KV |
395 | |
396 | mutex_lock(&wl->mutex); | |
397 | ||
80301cdc KV |
398 | if (wl->state != WL1251_STATE_OFF) { |
399 | wl1251_error("cannot start because not in off state: %d", | |
2f01a1f5 KV |
400 | wl->state); |
401 | ret = -EBUSY; | |
402 | goto out; | |
403 | } | |
404 | ||
80301cdc | 405 | ret = wl1251_chip_wakeup(wl); |
2f01a1f5 | 406 | if (ret < 0) |
fe643414 | 407 | goto out; |
2f01a1f5 | 408 | |
0e71bb08 | 409 | ret = wl1251_boot(wl); |
2f01a1f5 KV |
410 | if (ret < 0) |
411 | goto out; | |
412 | ||
0e71bb08 | 413 | ret = wl1251_hw_init(wl); |
2f01a1f5 KV |
414 | if (ret < 0) |
415 | goto out; | |
416 | ||
80301cdc | 417 | ret = wl1251_acx_station_id(wl); |
2f01a1f5 KV |
418 | if (ret < 0) |
419 | goto out; | |
420 | ||
80301cdc | 421 | wl->state = WL1251_STATE_ON; |
2f01a1f5 | 422 | |
0e71bb08 | 423 | wl1251_info("firmware booted (%s)", wl->fw_ver); |
2f01a1f5 | 424 | |
8b28e822 JL |
425 | /* update hw/fw version info in wiphy struct */ |
426 | wiphy->hw_version = wl->chip_id; | |
427 | strncpy(wiphy->fw_version, wl->fw_ver, sizeof(wiphy->fw_version)); | |
428 | ||
2f01a1f5 KV |
429 | out: |
430 | if (ret < 0) | |
80301cdc | 431 | wl1251_power_off(wl); |
2f01a1f5 KV |
432 | |
433 | mutex_unlock(&wl->mutex); | |
434 | ||
435 | return ret; | |
436 | } | |
437 | ||
80301cdc | 438 | static void wl1251_op_stop(struct ieee80211_hw *hw) |
2f01a1f5 | 439 | { |
80301cdc | 440 | struct wl1251 *wl = hw->priv; |
2f01a1f5 | 441 | |
80301cdc | 442 | wl1251_info("down"); |
2f01a1f5 | 443 | |
80301cdc | 444 | wl1251_debug(DEBUG_MAC80211, "mac80211 stop"); |
2f01a1f5 KV |
445 | |
446 | mutex_lock(&wl->mutex); | |
447 | ||
80301cdc | 448 | WARN_ON(wl->state != WL1251_STATE_ON); |
2f01a1f5 KV |
449 | |
450 | if (wl->scanning) { | |
7947d3e0 AS |
451 | struct cfg80211_scan_info info = { |
452 | .aborted = true, | |
453 | }; | |
454 | ||
455 | ieee80211_scan_completed(wl->hw, &info); | |
2f01a1f5 KV |
456 | wl->scanning = false; |
457 | } | |
458 | ||
80301cdc | 459 | wl->state = WL1251_STATE_OFF; |
2f01a1f5 | 460 | |
80301cdc | 461 | wl1251_disable_interrupts(wl); |
2f01a1f5 KV |
462 | |
463 | mutex_unlock(&wl->mutex); | |
464 | ||
465 | cancel_work_sync(&wl->irq_work); | |
466 | cancel_work_sync(&wl->tx_work); | |
4c1bcdb5 | 467 | cancel_delayed_work_sync(&wl->elp_work); |
2f01a1f5 KV |
468 | |
469 | mutex_lock(&wl->mutex); | |
470 | ||
471 | /* let's notify MAC80211 about the remaining pending TX frames */ | |
0e71bb08 | 472 | wl1251_tx_flush(wl); |
80301cdc | 473 | wl1251_power_off(wl); |
2f01a1f5 | 474 | |
93803b33 | 475 | eth_zero_addr(wl->bssid); |
2f01a1f5 KV |
476 | wl->listen_int = 1; |
477 | wl->bss_type = MAX_BSS_TYPE; | |
478 | ||
479 | wl->data_in_count = 0; | |
480 | wl->rx_counter = 0; | |
481 | wl->rx_handled = 0; | |
482 | wl->rx_current_buffer = 0; | |
483 | wl->rx_last_id = 0; | |
484 | wl->next_tx_complete = 0; | |
485 | wl->elp = false; | |
a0bbb58b | 486 | wl->station_mode = STATION_ACTIVE_MODE; |
f7ad1eed | 487 | wl->psm_entry_retry = 0; |
2f01a1f5 | 488 | wl->tx_queue_stopped = false; |
80301cdc | 489 | wl->power_level = WL1251_DEFAULT_POWER_LEVEL; |
8964e492 | 490 | wl->rssi_thold = 0; |
9780279c | 491 | wl->channel = WL1251_DEFAULT_CHANNEL; |
4d09b537 | 492 | wl->monitor_present = false; |
c8909e5a | 493 | wl->joined = false; |
2f01a1f5 | 494 | |
80301cdc | 495 | wl1251_debugfs_reset(wl); |
2f01a1f5 KV |
496 | |
497 | mutex_unlock(&wl->mutex); | |
498 | } | |
499 | ||
80301cdc | 500 | static int wl1251_op_add_interface(struct ieee80211_hw *hw, |
1ed32e4f | 501 | struct ieee80211_vif *vif) |
2f01a1f5 | 502 | { |
80301cdc | 503 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
504 | int ret = 0; |
505 | ||
ea086359 | 506 | vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | |
848955cc | 507 | IEEE80211_VIF_SUPPORTS_UAPSD | |
ea086359 | 508 | IEEE80211_VIF_SUPPORTS_CQM_RSSI; |
c1288b12 | 509 | |
e91d8334 | 510 | wl1251_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM", |
1ed32e4f | 511 | vif->type, vif->addr); |
2f01a1f5 KV |
512 | |
513 | mutex_lock(&wl->mutex); | |
287f6f96 JO |
514 | if (wl->vif) { |
515 | ret = -EBUSY; | |
516 | goto out; | |
517 | } | |
518 | ||
1ed32e4f | 519 | wl->vif = vif; |
2f01a1f5 | 520 | |
1ed32e4f | 521 | switch (vif->type) { |
2f01a1f5 KV |
522 | case NL80211_IFTYPE_STATION: |
523 | wl->bss_type = BSS_TYPE_STA_BSS; | |
524 | break; | |
525 | case NL80211_IFTYPE_ADHOC: | |
526 | wl->bss_type = BSS_TYPE_IBSS; | |
527 | break; | |
528 | default: | |
529 | ret = -EOPNOTSUPP; | |
530 | goto out; | |
531 | } | |
532 | ||
692e5167 | 533 | if (!ether_addr_equal_unaligned(wl->mac_addr, vif->addr)) { |
1ed32e4f | 534 | memcpy(wl->mac_addr, vif->addr, ETH_ALEN); |
2f01a1f5 | 535 | SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr); |
80301cdc | 536 | ret = wl1251_acx_station_id(wl); |
2f01a1f5 KV |
537 | if (ret < 0) |
538 | goto out; | |
539 | } | |
540 | ||
541 | out: | |
542 | mutex_unlock(&wl->mutex); | |
543 | return ret; | |
544 | } | |
545 | ||
80301cdc | 546 | static void wl1251_op_remove_interface(struct ieee80211_hw *hw, |
1ed32e4f | 547 | struct ieee80211_vif *vif) |
2f01a1f5 | 548 | { |
287f6f96 JO |
549 | struct wl1251 *wl = hw->priv; |
550 | ||
551 | mutex_lock(&wl->mutex); | |
80301cdc | 552 | wl1251_debug(DEBUG_MAC80211, "mac80211 remove interface"); |
287f6f96 | 553 | wl->vif = NULL; |
93803b33 | 554 | eth_zero_addr(wl->bssid); |
287f6f96 | 555 | mutex_unlock(&wl->mutex); |
2f01a1f5 KV |
556 | } |
557 | ||
a5640612 GI |
558 | static int wl1251_build_null_data(struct wl1251 *wl) |
559 | { | |
560 | struct sk_buff *skb = NULL; | |
561 | int size; | |
562 | void *ptr; | |
563 | int ret = -ENOMEM; | |
564 | ||
565 | if (wl->bss_type == BSS_TYPE_IBSS) { | |
566 | size = sizeof(struct wl12xx_null_data_template); | |
567 | ptr = NULL; | |
568 | } else { | |
7b6ddeaf | 569 | skb = ieee80211_nullfunc_get(wl->hw, wl->vif, false); |
a5640612 GI |
570 | if (!skb) |
571 | goto out; | |
572 | size = skb->len; | |
573 | ptr = skb->data; | |
574 | } | |
575 | ||
576 | ret = wl1251_cmd_template_set(wl, CMD_NULL_DATA, ptr, size); | |
577 | ||
578 | out: | |
579 | dev_kfree_skb(skb); | |
580 | if (ret) | |
581 | wl1251_warning("cmd buld null data failed: %d", ret); | |
582 | ||
583 | return ret; | |
584 | } | |
585 | ||
8f8ff916 KV |
586 | static int wl1251_build_qos_null_data(struct wl1251 *wl) |
587 | { | |
588 | struct ieee80211_qos_hdr template; | |
589 | ||
590 | memset(&template, 0, sizeof(template)); | |
591 | ||
592 | memcpy(template.addr1, wl->bssid, ETH_ALEN); | |
593 | memcpy(template.addr2, wl->mac_addr, ETH_ALEN); | |
594 | memcpy(template.addr3, wl->bssid, ETH_ALEN); | |
595 | ||
596 | template.frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | | |
597 | IEEE80211_STYPE_QOS_NULLFUNC | | |
598 | IEEE80211_FCTL_TODS); | |
599 | ||
600 | /* FIXME: not sure what priority to use here */ | |
601 | template.qos_ctrl = cpu_to_le16(0); | |
602 | ||
603 | return wl1251_cmd_template_set(wl, CMD_QOS_NULL_DATA, &template, | |
604 | sizeof(template)); | |
605 | } | |
606 | ||
dd4a560f DG |
607 | static bool wl1251_can_do_pm(struct ieee80211_conf *conf, struct wl1251 *wl) |
608 | { | |
609 | return (conf->flags & IEEE80211_CONF_PS) && !wl->monitor_present; | |
610 | } | |
611 | ||
80301cdc | 612 | static int wl1251_op_config(struct ieee80211_hw *hw, u32 changed) |
2f01a1f5 | 613 | { |
80301cdc | 614 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
615 | struct ieee80211_conf *conf = &hw->conf; |
616 | int channel, ret = 0; | |
617 | ||
675a0b04 KB |
618 | channel = ieee80211_frequency_to_channel( |
619 | conf->chandef.chan->center_freq); | |
2f01a1f5 | 620 | |
4d09b537 DG |
621 | wl1251_debug(DEBUG_MAC80211, |
622 | "mac80211 config ch %d monitor %s psm %s power %d", | |
2f01a1f5 | 623 | channel, |
4d09b537 | 624 | conf->flags & IEEE80211_CONF_MONITOR ? "on" : "off", |
2f01a1f5 KV |
625 | conf->flags & IEEE80211_CONF_PS ? "on" : "off", |
626 | conf->power_level); | |
627 | ||
628 | mutex_lock(&wl->mutex); | |
629 | ||
80301cdc | 630 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
631 | if (ret < 0) |
632 | goto out; | |
01d9cfbd | 633 | |
4d09b537 DG |
634 | if (changed & IEEE80211_CONF_CHANGE_MONITOR) { |
635 | u32 mode; | |
636 | ||
637 | if (conf->flags & IEEE80211_CONF_MONITOR) { | |
638 | wl->monitor_present = true; | |
639 | mode = DF_SNIFF_MODE_ENABLE | DF_ENCRYPTION_DISABLE; | |
640 | } else { | |
641 | wl->monitor_present = false; | |
642 | mode = 0; | |
643 | } | |
644 | ||
645 | ret = wl1251_acx_feature_cfg(wl, mode); | |
646 | if (ret < 0) | |
647 | goto out_sleep; | |
648 | } | |
649 | ||
2f01a1f5 | 650 | if (channel != wl->channel) { |
fe9a9846 KV |
651 | wl->channel = channel; |
652 | ||
ed3213c9 DG |
653 | /* |
654 | * Use ENABLE_RX command for channel switching when no | |
655 | * interface is present (monitor mode only). | |
656 | * This leaves the tx path disabled in firmware, whereas | |
657 | * the usual JOIN command seems to transmit some frames | |
658 | * at firmware level. | |
659 | */ | |
660 | if (wl->vif == NULL) { | |
c8909e5a | 661 | wl->joined = false; |
ed3213c9 DG |
662 | ret = wl1251_cmd_data_path_rx(wl, wl->channel, 1); |
663 | } else { | |
664 | ret = wl1251_join(wl, wl->bss_type, wl->channel, | |
665 | wl->beacon_int, wl->dtim_period); | |
666 | } | |
2f01a1f5 | 667 | if (ret < 0) |
c5483b71 | 668 | goto out_sleep; |
2f01a1f5 KV |
669 | } |
670 | ||
dd4a560f | 671 | if (wl1251_can_do_pm(conf, wl) && !wl->psm_requested) { |
47af3fe3 | 672 | wl1251_debug(DEBUG_PSM, "psm enabled"); |
2f01a1f5 KV |
673 | |
674 | wl->psm_requested = true; | |
675 | ||
56007a02 JB |
676 | wl->dtim_period = conf->ps_dtim_period; |
677 | ||
678 | ret = wl1251_acx_wr_tbtt_and_dtim(wl, wl->beacon_int, | |
679 | wl->dtim_period); | |
680 | ||
2f01a1f5 | 681 | /* |
56007a02 | 682 | * mac80211 enables PSM only if we're already associated. |
2f01a1f5 | 683 | */ |
80301cdc | 684 | ret = wl1251_ps_set_mode(wl, STATION_POWER_SAVE_MODE); |
478fdf2b KV |
685 | if (ret < 0) |
686 | goto out_sleep; | |
dd4a560f | 687 | } else if (!wl1251_can_do_pm(conf, wl) && wl->psm_requested) { |
47af3fe3 | 688 | wl1251_debug(DEBUG_PSM, "psm disabled"); |
2f01a1f5 KV |
689 | |
690 | wl->psm_requested = false; | |
691 | ||
a0bbb58b | 692 | if (wl->station_mode != STATION_ACTIVE_MODE) { |
80301cdc | 693 | ret = wl1251_ps_set_mode(wl, STATION_ACTIVE_MODE); |
478fdf2b KV |
694 | if (ret < 0) |
695 | goto out_sleep; | |
696 | } | |
2f01a1f5 KV |
697 | } |
698 | ||
f1e3e051 | 699 | if (changed & IEEE80211_CONF_CHANGE_IDLE && !wl->scanning) { |
1e5f52de JN |
700 | if (conf->flags & IEEE80211_CONF_IDLE) { |
701 | ret = wl1251_ps_set_mode(wl, STATION_IDLE); | |
702 | if (ret < 0) | |
703 | goto out_sleep; | |
704 | } else { | |
705 | ret = wl1251_ps_set_mode(wl, STATION_ACTIVE_MODE); | |
706 | if (ret < 0) | |
707 | goto out_sleep; | |
708 | ret = wl1251_join(wl, wl->bss_type, wl->channel, | |
709 | wl->beacon_int, wl->dtim_period); | |
710 | if (ret < 0) | |
711 | goto out_sleep; | |
712 | } | |
713 | } | |
714 | ||
2f01a1f5 | 715 | if (conf->power_level != wl->power_level) { |
80301cdc | 716 | ret = wl1251_acx_tx_power(wl, conf->power_level); |
2f01a1f5 | 717 | if (ret < 0) |
478fdf2b | 718 | goto out_sleep; |
2f01a1f5 KV |
719 | |
720 | wl->power_level = conf->power_level; | |
721 | } | |
722 | ||
c5483b71 | 723 | out_sleep: |
80301cdc | 724 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
725 | |
726 | out: | |
2f01a1f5 | 727 | mutex_unlock(&wl->mutex); |
c5483b71 | 728 | |
2f01a1f5 KV |
729 | return ret; |
730 | } | |
731 | ||
9ed74ba0 DG |
732 | struct wl1251_filter_params { |
733 | bool enabled; | |
734 | int mc_list_length; | |
735 | u8 mc_list[ACX_MC_ADDRESS_GROUP_MAX][ETH_ALEN]; | |
736 | }; | |
737 | ||
738 | static u64 wl1251_op_prepare_multicast(struct ieee80211_hw *hw, | |
739 | struct netdev_hw_addr_list *mc_list) | |
740 | { | |
741 | struct wl1251_filter_params *fp; | |
742 | struct netdev_hw_addr *ha; | |
743 | struct wl1251 *wl = hw->priv; | |
744 | ||
745 | if (unlikely(wl->state == WL1251_STATE_OFF)) | |
746 | return 0; | |
747 | ||
748 | fp = kzalloc(sizeof(*fp), GFP_ATOMIC); | |
749 | if (!fp) { | |
750 | wl1251_error("Out of memory setting filters."); | |
751 | return 0; | |
752 | } | |
753 | ||
754 | /* update multicast filtering parameters */ | |
755 | fp->mc_list_length = 0; | |
756 | if (netdev_hw_addr_list_count(mc_list) > ACX_MC_ADDRESS_GROUP_MAX) { | |
757 | fp->enabled = false; | |
758 | } else { | |
759 | fp->enabled = true; | |
760 | netdev_hw_addr_list_for_each(ha, mc_list) { | |
761 | memcpy(fp->mc_list[fp->mc_list_length], | |
762 | ha->addr, ETH_ALEN); | |
763 | fp->mc_list_length++; | |
764 | } | |
765 | } | |
766 | ||
767 | return (u64)(unsigned long)fp; | |
768 | } | |
769 | ||
df140465 | 770 | #define WL1251_SUPPORTED_FILTERS (FIF_ALLMULTI | \ |
2f01a1f5 KV |
771 | FIF_FCSFAIL | \ |
772 | FIF_BCN_PRBRESP_PROMISC | \ | |
773 | FIF_CONTROL | \ | |
84b60c14 GI |
774 | FIF_OTHER_BSS | \ |
775 | FIF_PROBE_REQ) | |
2f01a1f5 | 776 | |
80301cdc | 777 | static void wl1251_op_configure_filter(struct ieee80211_hw *hw, |
2f01a1f5 | 778 | unsigned int changed, |
9ed74ba0 | 779 | unsigned int *total, u64 multicast) |
2f01a1f5 | 780 | { |
9ed74ba0 | 781 | struct wl1251_filter_params *fp = (void *)(unsigned long)multicast; |
80301cdc | 782 | struct wl1251 *wl = hw->priv; |
84b60c14 | 783 | int ret; |
2f01a1f5 | 784 | |
80301cdc | 785 | wl1251_debug(DEBUG_MAC80211, "mac80211 configure filter"); |
2f01a1f5 | 786 | |
80301cdc KV |
787 | *total &= WL1251_SUPPORTED_FILTERS; |
788 | changed &= WL1251_SUPPORTED_FILTERS; | |
2f01a1f5 | 789 | |
9ed74ba0 | 790 | if (changed == 0) { |
2f01a1f5 | 791 | /* no filters which we support changed */ |
9ed74ba0 | 792 | kfree(fp); |
2f01a1f5 | 793 | return; |
9ed74ba0 | 794 | } |
2f01a1f5 | 795 | |
84b60c14 | 796 | mutex_lock(&wl->mutex); |
2f01a1f5 | 797 | |
80301cdc KV |
798 | wl->rx_config = WL1251_DEFAULT_RX_CONFIG; |
799 | wl->rx_filter = WL1251_DEFAULT_RX_FILTER; | |
2f01a1f5 | 800 | |
2f01a1f5 KV |
801 | if (*total & FIF_ALLMULTI) |
802 | /* | |
803 | * CFG_MC_FILTER_EN in rx_config needs to be 0 to receive | |
804 | * all multicast frames | |
805 | */ | |
806 | wl->rx_config &= ~CFG_MC_FILTER_EN; | |
807 | if (*total & FIF_FCSFAIL) | |
808 | wl->rx_filter |= CFG_RX_FCS_ERROR; | |
809 | if (*total & FIF_BCN_PRBRESP_PROMISC) { | |
810 | wl->rx_config &= ~CFG_BSSID_FILTER_EN; | |
811 | wl->rx_config &= ~CFG_SSID_FILTER_EN; | |
812 | } | |
813 | if (*total & FIF_CONTROL) | |
814 | wl->rx_filter |= CFG_RX_CTL_EN; | |
84b60c14 GI |
815 | if (*total & FIF_OTHER_BSS || is_zero_ether_addr(wl->bssid)) |
816 | wl->rx_config &= ~CFG_BSSID_FILTER_EN; | |
817 | if (*total & FIF_PROBE_REQ) | |
818 | wl->rx_filter |= CFG_RX_PREQ_EN; | |
819 | ||
820 | if (wl->state == WL1251_STATE_OFF) | |
821 | goto out; | |
822 | ||
823 | ret = wl1251_ps_elp_wakeup(wl); | |
824 | if (ret < 0) | |
825 | goto out; | |
826 | ||
df140465 | 827 | if (*total & FIF_ALLMULTI) |
9ed74ba0 DG |
828 | ret = wl1251_acx_group_address_tbl(wl, false, NULL, 0); |
829 | else if (fp) | |
830 | ret = wl1251_acx_group_address_tbl(wl, fp->enabled, | |
831 | fp->mc_list, | |
832 | fp->mc_list_length); | |
833 | if (ret < 0) | |
834 | goto out; | |
835 | ||
84b60c14 GI |
836 | /* send filters to firmware */ |
837 | wl1251_acx_rx_config(wl, wl->rx_config, wl->rx_filter); | |
838 | ||
839 | wl1251_ps_elp_sleep(wl); | |
840 | ||
841 | out: | |
842 | mutex_unlock(&wl->mutex); | |
9ed74ba0 | 843 | kfree(fp); |
2f01a1f5 KV |
844 | } |
845 | ||
846 | /* HW encryption */ | |
80301cdc KV |
847 | static int wl1251_set_key_type(struct wl1251 *wl, |
848 | struct wl1251_cmd_set_keys *key, | |
2f01a1f5 KV |
849 | enum set_key_cmd cmd, |
850 | struct ieee80211_key_conf *mac80211_key, | |
851 | const u8 *addr) | |
852 | { | |
97359d12 JB |
853 | switch (mac80211_key->cipher) { |
854 | case WLAN_CIPHER_SUITE_WEP40: | |
855 | case WLAN_CIPHER_SUITE_WEP104: | |
2f01a1f5 KV |
856 | if (is_broadcast_ether_addr(addr)) |
857 | key->key_type = KEY_WEP_DEFAULT; | |
858 | else | |
859 | key->key_type = KEY_WEP_ADDR; | |
860 | ||
861 | mac80211_key->hw_key_idx = mac80211_key->keyidx; | |
862 | break; | |
97359d12 | 863 | case WLAN_CIPHER_SUITE_TKIP: |
2f01a1f5 KV |
864 | if (is_broadcast_ether_addr(addr)) |
865 | key->key_type = KEY_TKIP_MIC_GROUP; | |
866 | else | |
867 | key->key_type = KEY_TKIP_MIC_PAIRWISE; | |
868 | ||
869 | mac80211_key->hw_key_idx = mac80211_key->keyidx; | |
870 | break; | |
97359d12 | 871 | case WLAN_CIPHER_SUITE_CCMP: |
2f01a1f5 KV |
872 | if (is_broadcast_ether_addr(addr)) |
873 | key->key_type = KEY_AES_GROUP; | |
874 | else | |
875 | key->key_type = KEY_AES_PAIRWISE; | |
876 | mac80211_key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV; | |
877 | break; | |
878 | default: | |
97359d12 | 879 | wl1251_error("Unknown key cipher 0x%x", mac80211_key->cipher); |
2f01a1f5 KV |
880 | return -EOPNOTSUPP; |
881 | } | |
882 | ||
883 | return 0; | |
884 | } | |
885 | ||
80301cdc | 886 | static int wl1251_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
2f01a1f5 KV |
887 | struct ieee80211_vif *vif, |
888 | struct ieee80211_sta *sta, | |
889 | struct ieee80211_key_conf *key) | |
890 | { | |
80301cdc KV |
891 | struct wl1251 *wl = hw->priv; |
892 | struct wl1251_cmd_set_keys *wl_cmd; | |
2f01a1f5 KV |
893 | const u8 *addr; |
894 | int ret; | |
895 | ||
896 | static const u8 bcast_addr[ETH_ALEN] = | |
897 | { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; | |
898 | ||
80301cdc | 899 | wl1251_debug(DEBUG_MAC80211, "mac80211 set key"); |
2f01a1f5 | 900 | |
ff25839b KV |
901 | wl_cmd = kzalloc(sizeof(*wl_cmd), GFP_KERNEL); |
902 | if (!wl_cmd) { | |
903 | ret = -ENOMEM; | |
904 | goto out; | |
905 | } | |
2f01a1f5 KV |
906 | |
907 | addr = sta ? sta->addr : bcast_addr; | |
908 | ||
80301cdc KV |
909 | wl1251_debug(DEBUG_CRYPT, "CMD: 0x%x", cmd); |
910 | wl1251_dump(DEBUG_CRYPT, "ADDR: ", addr, ETH_ALEN); | |
911 | wl1251_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x", | |
97359d12 | 912 | key->cipher, key->keyidx, key->keylen, key->flags); |
80301cdc | 913 | wl1251_dump(DEBUG_CRYPT, "KEY: ", key->key, key->keylen); |
2f01a1f5 | 914 | |
ff25839b KV |
915 | if (is_zero_ether_addr(addr)) { |
916 | /* We dont support TX only encryption */ | |
917 | ret = -EOPNOTSUPP; | |
918 | goto out; | |
919 | } | |
920 | ||
2f01a1f5 KV |
921 | mutex_lock(&wl->mutex); |
922 | ||
923 | switch (cmd) { | |
924 | case SET_KEY: | |
4d09b537 DG |
925 | if (wl->monitor_present) { |
926 | ret = -EOPNOTSUPP; | |
927 | goto out_unlock; | |
928 | } | |
ff25839b | 929 | wl_cmd->key_action = KEY_ADD_OR_REPLACE; |
2f01a1f5 KV |
930 | break; |
931 | case DISABLE_KEY: | |
ff25839b | 932 | wl_cmd->key_action = KEY_REMOVE; |
2f01a1f5 KV |
933 | break; |
934 | default: | |
80301cdc | 935 | wl1251_error("Unsupported key cmd 0x%x", cmd); |
2f01a1f5 KV |
936 | break; |
937 | } | |
938 | ||
4d09b537 DG |
939 | ret = wl1251_ps_elp_wakeup(wl); |
940 | if (ret < 0) | |
941 | goto out_unlock; | |
942 | ||
80301cdc | 943 | ret = wl1251_set_key_type(wl, wl_cmd, cmd, key, addr); |
2f01a1f5 | 944 | if (ret < 0) { |
80301cdc | 945 | wl1251_error("Set KEY type failed"); |
c5483b71 | 946 | goto out_sleep; |
2f01a1f5 KV |
947 | } |
948 | ||
ff25839b KV |
949 | if (wl_cmd->key_type != KEY_WEP_DEFAULT) |
950 | memcpy(wl_cmd->addr, addr, ETH_ALEN); | |
2f01a1f5 | 951 | |
ff25839b KV |
952 | if ((wl_cmd->key_type == KEY_TKIP_MIC_GROUP) || |
953 | (wl_cmd->key_type == KEY_TKIP_MIC_PAIRWISE)) { | |
2f01a1f5 KV |
954 | /* |
955 | * We get the key in the following form: | |
956 | * TKIP (16 bytes) - TX MIC (8 bytes) - RX MIC (8 bytes) | |
957 | * but the target is expecting: | |
958 | * TKIP - RX MIC - TX MIC | |
959 | */ | |
ff25839b KV |
960 | memcpy(wl_cmd->key, key->key, 16); |
961 | memcpy(wl_cmd->key + 16, key->key + 24, 8); | |
962 | memcpy(wl_cmd->key + 24, key->key + 16, 8); | |
2f01a1f5 KV |
963 | |
964 | } else { | |
ff25839b | 965 | memcpy(wl_cmd->key, key->key, key->keylen); |
2f01a1f5 | 966 | } |
ff25839b | 967 | wl_cmd->key_size = key->keylen; |
2f01a1f5 | 968 | |
ff25839b KV |
969 | wl_cmd->id = key->keyidx; |
970 | wl_cmd->ssid_profile = 0; | |
2f01a1f5 | 971 | |
80301cdc | 972 | wl1251_dump(DEBUG_CRYPT, "TARGET KEY: ", wl_cmd, sizeof(*wl_cmd)); |
2f01a1f5 | 973 | |
80301cdc | 974 | ret = wl1251_cmd_send(wl, CMD_SET_KEYS, wl_cmd, sizeof(*wl_cmd)); |
ff25839b | 975 | if (ret < 0) { |
80301cdc | 976 | wl1251_warning("could not set keys"); |
c5483b71 | 977 | goto out_sleep; |
2f01a1f5 KV |
978 | } |
979 | ||
c5483b71 | 980 | out_sleep: |
80301cdc | 981 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
982 | |
983 | out_unlock: | |
2f01a1f5 | 984 | mutex_unlock(&wl->mutex); |
ff25839b KV |
985 | |
986 | out: | |
987 | kfree(wl_cmd); | |
988 | ||
2f01a1f5 KV |
989 | return ret; |
990 | } | |
991 | ||
80301cdc | 992 | static int wl1251_op_hw_scan(struct ieee80211_hw *hw, |
a060bbfe | 993 | struct ieee80211_vif *vif, |
c56ef672 | 994 | struct ieee80211_scan_request *hw_req) |
2f01a1f5 | 995 | { |
c56ef672 | 996 | struct cfg80211_scan_request *req = &hw_req->req; |
80301cdc | 997 | struct wl1251 *wl = hw->priv; |
e477c56e | 998 | struct sk_buff *skb; |
2f01a1f5 | 999 | size_t ssid_len = 0; |
3a98c30f KV |
1000 | u8 *ssid = NULL; |
1001 | int ret; | |
2f01a1f5 | 1002 | |
80301cdc | 1003 | wl1251_debug(DEBUG_MAC80211, "mac80211 hw scan"); |
2f01a1f5 KV |
1004 | |
1005 | if (req->n_ssids) { | |
1006 | ssid = req->ssids[0].ssid; | |
1007 | ssid_len = req->ssids[0].ssid_len; | |
1008 | } | |
1009 | ||
1010 | mutex_lock(&wl->mutex); | |
c5483b71 | 1011 | |
3a98c30f KV |
1012 | if (wl->scanning) { |
1013 | wl1251_debug(DEBUG_SCAN, "scan already in progress"); | |
1014 | ret = -EINVAL; | |
1015 | goto out; | |
1016 | } | |
1017 | ||
80301cdc | 1018 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
1019 | if (ret < 0) |
1020 | goto out; | |
01d9cfbd | 1021 | |
f1e3e051 JB |
1022 | if (hw->conf.flags & IEEE80211_CONF_IDLE) { |
1023 | ret = wl1251_ps_set_mode(wl, STATION_ACTIVE_MODE); | |
1024 | if (ret < 0) | |
1025 | goto out_sleep; | |
1026 | ret = wl1251_join(wl, wl->bss_type, wl->channel, | |
1027 | wl->beacon_int, wl->dtim_period); | |
1028 | if (ret < 0) | |
1029 | goto out_sleep; | |
1030 | } | |
1031 | ||
a344d677 | 1032 | skb = ieee80211_probereq_get(wl->hw, wl->vif->addr, ssid, ssid_len, |
b9a9ada1 | 1033 | req->ie_len); |
e477c56e KV |
1034 | if (!skb) { |
1035 | ret = -ENOMEM; | |
f1e3e051 | 1036 | goto out_idle; |
e477c56e | 1037 | } |
b9a9ada1 | 1038 | if (req->ie_len) |
59ae1d12 | 1039 | skb_put_data(skb, req->ie, req->ie_len); |
e477c56e KV |
1040 | |
1041 | ret = wl1251_cmd_template_set(wl, CMD_PROBE_REQ, skb->data, | |
1042 | skb->len); | |
1043 | dev_kfree_skb(skb); | |
3a98c30f | 1044 | if (ret < 0) |
f1e3e051 | 1045 | goto out_idle; |
3a98c30f KV |
1046 | |
1047 | ret = wl1251_cmd_trigger_scan_to(wl, 0); | |
1048 | if (ret < 0) | |
f1e3e051 | 1049 | goto out_idle; |
3a98c30f KV |
1050 | |
1051 | wl->scanning = true; | |
01d9cfbd | 1052 | |
dc52f0a8 KV |
1053 | ret = wl1251_cmd_scan(wl, ssid, ssid_len, req->channels, |
1054 | req->n_channels, WL1251_SCAN_NUM_PROBES); | |
3a98c30f | 1055 | if (ret < 0) { |
64322e28 | 1056 | wl1251_debug(DEBUG_SCAN, "scan failed %d", ret); |
3a98c30f | 1057 | wl->scanning = false; |
f1e3e051 | 1058 | goto out_idle; |
3a98c30f | 1059 | } |
f1e3e051 | 1060 | goto out_sleep; |
3a98c30f | 1061 | |
f1e3e051 JB |
1062 | out_idle: |
1063 | if (hw->conf.flags & IEEE80211_CONF_IDLE) | |
1064 | ret = wl1251_ps_set_mode(wl, STATION_IDLE); | |
3a98c30f | 1065 | out_sleep: |
80301cdc | 1066 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
1067 | |
1068 | out: | |
2f01a1f5 KV |
1069 | mutex_unlock(&wl->mutex); |
1070 | ||
1071 | return ret; | |
1072 | } | |
1073 | ||
80301cdc | 1074 | static int wl1251_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value) |
2f01a1f5 | 1075 | { |
80301cdc | 1076 | struct wl1251 *wl = hw->priv; |
2f01a1f5 KV |
1077 | int ret; |
1078 | ||
cee4fd27 KV |
1079 | mutex_lock(&wl->mutex); |
1080 | ||
80301cdc | 1081 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
1082 | if (ret < 0) |
1083 | goto out; | |
01d9cfbd | 1084 | |
80301cdc | 1085 | ret = wl1251_acx_rts_threshold(wl, (u16) value); |
2f01a1f5 | 1086 | if (ret < 0) |
80301cdc | 1087 | wl1251_warning("wl1251_op_set_rts_threshold failed: %d", ret); |
2f01a1f5 | 1088 | |
80301cdc | 1089 | wl1251_ps_elp_sleep(wl); |
01d9cfbd | 1090 | |
c5483b71 | 1091 | out: |
cee4fd27 KV |
1092 | mutex_unlock(&wl->mutex); |
1093 | ||
2f01a1f5 KV |
1094 | return ret; |
1095 | } | |
1096 | ||
80301cdc | 1097 | static void wl1251_op_bss_info_changed(struct ieee80211_hw *hw, |
2f01a1f5 KV |
1098 | struct ieee80211_vif *vif, |
1099 | struct ieee80211_bss_conf *bss_conf, | |
1100 | u32 changed) | |
1101 | { | |
80301cdc | 1102 | struct wl1251 *wl = hw->priv; |
f7f70579 | 1103 | struct sk_buff *beacon, *skb; |
204cc5c4 | 1104 | bool enable; |
2f01a1f5 KV |
1105 | int ret; |
1106 | ||
80301cdc | 1107 | wl1251_debug(DEBUG_MAC80211, "mac80211 bss info changed"); |
2f01a1f5 KV |
1108 | |
1109 | mutex_lock(&wl->mutex); | |
1110 | ||
80301cdc | 1111 | ret = wl1251_ps_elp_wakeup(wl); |
c5483b71 KV |
1112 | if (ret < 0) |
1113 | goto out; | |
01d9cfbd | 1114 | |
8964e492 DG |
1115 | if (changed & BSS_CHANGED_CQM) { |
1116 | ret = wl1251_acx_low_rssi(wl, bss_conf->cqm_rssi_thold, | |
1117 | WL1251_DEFAULT_LOW_RSSI_WEIGHT, | |
1118 | WL1251_DEFAULT_LOW_RSSI_DEPTH, | |
1119 | WL1251_ACX_LOW_RSSI_TYPE_EDGE); | |
1120 | if (ret < 0) | |
1121 | goto out; | |
1122 | wl->rssi_thold = bss_conf->cqm_rssi_thold; | |
1123 | } | |
1124 | ||
a5640612 GI |
1125 | if ((changed & BSS_CHANGED_BSSID) && |
1126 | memcmp(wl->bssid, bss_conf->bssid, ETH_ALEN)) { | |
de8df1ea KV |
1127 | memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN); |
1128 | ||
a5640612 GI |
1129 | if (!is_zero_ether_addr(wl->bssid)) { |
1130 | ret = wl1251_build_null_data(wl); | |
1131 | if (ret < 0) | |
1132 | goto out_sleep; | |
de8df1ea | 1133 | |
a5640612 GI |
1134 | ret = wl1251_build_qos_null_data(wl); |
1135 | if (ret < 0) | |
1136 | goto out_sleep; | |
8f8ff916 | 1137 | |
de8df1ea KV |
1138 | ret = wl1251_join(wl, wl->bss_type, wl->channel, |
1139 | wl->beacon_int, wl->dtim_period); | |
1140 | if (ret < 0) | |
1141 | goto out_sleep; | |
1142 | } | |
1143 | } | |
1144 | ||
2f01a1f5 KV |
1145 | if (changed & BSS_CHANGED_ASSOC) { |
1146 | if (bss_conf->assoc) { | |
e2fd4611 | 1147 | wl->beacon_int = bss_conf->beacon_int; |
2f01a1f5 | 1148 | |
f7f70579 KV |
1149 | skb = ieee80211_pspoll_get(wl->hw, wl->vif); |
1150 | if (!skb) | |
1151 | goto out_sleep; | |
1152 | ||
1153 | ret = wl1251_cmd_template_set(wl, CMD_PS_POLL, | |
1154 | skb->data, | |
1155 | skb->len); | |
1156 | dev_kfree_skb(skb); | |
2f01a1f5 | 1157 | if (ret < 0) |
c5483b71 | 1158 | goto out_sleep; |
2f01a1f5 | 1159 | |
56007a02 | 1160 | ret = wl1251_acx_aid(wl, bss_conf->aid); |
2f01a1f5 | 1161 | if (ret < 0) |
c5483b71 | 1162 | goto out_sleep; |
e2fd4611 KV |
1163 | } else { |
1164 | /* use defaults when not associated */ | |
1165 | wl->beacon_int = WL1251_DEFAULT_BEACON_INT; | |
1166 | wl->dtim_period = WL1251_DEFAULT_DTIM_PERIOD; | |
2f01a1f5 KV |
1167 | } |
1168 | } | |
1169 | if (changed & BSS_CHANGED_ERP_SLOT) { | |
1170 | if (bss_conf->use_short_slot) | |
80301cdc | 1171 | ret = wl1251_acx_slot(wl, SLOT_TIME_SHORT); |
2f01a1f5 | 1172 | else |
80301cdc | 1173 | ret = wl1251_acx_slot(wl, SLOT_TIME_LONG); |
2f01a1f5 | 1174 | if (ret < 0) { |
80301cdc | 1175 | wl1251_warning("Set slot time failed %d", ret); |
c5483b71 | 1176 | goto out_sleep; |
2f01a1f5 KV |
1177 | } |
1178 | } | |
1179 | ||
1180 | if (changed & BSS_CHANGED_ERP_PREAMBLE) { | |
1181 | if (bss_conf->use_short_preamble) | |
80301cdc | 1182 | wl1251_acx_set_preamble(wl, ACX_PREAMBLE_SHORT); |
2f01a1f5 | 1183 | else |
80301cdc | 1184 | wl1251_acx_set_preamble(wl, ACX_PREAMBLE_LONG); |
2f01a1f5 KV |
1185 | } |
1186 | ||
1187 | if (changed & BSS_CHANGED_ERP_CTS_PROT) { | |
1188 | if (bss_conf->use_cts_prot) | |
80301cdc | 1189 | ret = wl1251_acx_cts_protect(wl, CTSPROTECT_ENABLE); |
2f01a1f5 | 1190 | else |
80301cdc | 1191 | ret = wl1251_acx_cts_protect(wl, CTSPROTECT_DISABLE); |
2f01a1f5 | 1192 | if (ret < 0) { |
80301cdc | 1193 | wl1251_warning("Set ctsprotect failed %d", ret); |
80a112ff | 1194 | goto out_sleep; |
2f01a1f5 KV |
1195 | } |
1196 | } | |
1197 | ||
204cc5c4 DG |
1198 | if (changed & BSS_CHANGED_ARP_FILTER) { |
1199 | __be32 addr = bss_conf->arp_addr_list[0]; | |
1200 | WARN_ON(wl->bss_type != BSS_TYPE_STA_BSS); | |
1201 | ||
1202 | enable = bss_conf->arp_addr_cnt == 1 && bss_conf->assoc; | |
1203 | wl1251_acx_arp_ip_filter(wl, enable, addr); | |
1204 | ||
1205 | if (ret < 0) | |
1206 | goto out_sleep; | |
1207 | } | |
1208 | ||
2f01a1f5 KV |
1209 | if (changed & BSS_CHANGED_BEACON) { |
1210 | beacon = ieee80211_beacon_get(hw, vif); | |
4d048aac JJ |
1211 | if (!beacon) |
1212 | goto out_sleep; | |
1213 | ||
80301cdc | 1214 | ret = wl1251_cmd_template_set(wl, CMD_BEACON, beacon->data, |
2f01a1f5 KV |
1215 | beacon->len); |
1216 | ||
1217 | if (ret < 0) { | |
1218 | dev_kfree_skb(beacon); | |
80a112ff | 1219 | goto out_sleep; |
2f01a1f5 KV |
1220 | } |
1221 | ||
80301cdc | 1222 | ret = wl1251_cmd_template_set(wl, CMD_PROBE_RESP, beacon->data, |
2f01a1f5 KV |
1223 | beacon->len); |
1224 | ||
1225 | dev_kfree_skb(beacon); | |
1226 | ||
1227 | if (ret < 0) | |
80a112ff | 1228 | goto out_sleep; |
2f01a1f5 | 1229 | |
863bdbc9 GI |
1230 | ret = wl1251_join(wl, wl->bss_type, wl->channel, |
1231 | wl->beacon_int, wl->dtim_period); | |
2f01a1f5 KV |
1232 | |
1233 | if (ret < 0) | |
80a112ff | 1234 | goto out_sleep; |
2f01a1f5 KV |
1235 | } |
1236 | ||
c5483b71 | 1237 | out_sleep: |
80301cdc | 1238 | wl1251_ps_elp_sleep(wl); |
c5483b71 KV |
1239 | |
1240 | out: | |
2f01a1f5 KV |
1241 | mutex_unlock(&wl->mutex); |
1242 | } | |
1243 | ||
1244 | ||
1245 | /* can't be const, mac80211 writes to this */ | |
80301cdc | 1246 | static struct ieee80211_rate wl1251_rates[] = { |
2f01a1f5 KV |
1247 | { .bitrate = 10, |
1248 | .hw_value = 0x1, | |
1249 | .hw_value_short = 0x1, }, | |
1250 | { .bitrate = 20, | |
1251 | .hw_value = 0x2, | |
1252 | .hw_value_short = 0x2, | |
1253 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
1254 | { .bitrate = 55, | |
1255 | .hw_value = 0x4, | |
1256 | .hw_value_short = 0x4, | |
1257 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
1258 | { .bitrate = 110, | |
1259 | .hw_value = 0x20, | |
1260 | .hw_value_short = 0x20, | |
1261 | .flags = IEEE80211_RATE_SHORT_PREAMBLE }, | |
1262 | { .bitrate = 60, | |
1263 | .hw_value = 0x8, | |
1264 | .hw_value_short = 0x8, }, | |
1265 | { .bitrate = 90, | |
1266 | .hw_value = 0x10, | |
1267 | .hw_value_short = 0x10, }, | |
1268 | { .bitrate = 120, | |
1269 | .hw_value = 0x40, | |
1270 | .hw_value_short = 0x40, }, | |
1271 | { .bitrate = 180, | |
1272 | .hw_value = 0x80, | |
1273 | .hw_value_short = 0x80, }, | |
1274 | { .bitrate = 240, | |
1275 | .hw_value = 0x200, | |
1276 | .hw_value_short = 0x200, }, | |
1277 | { .bitrate = 360, | |
1278 | .hw_value = 0x400, | |
1279 | .hw_value_short = 0x400, }, | |
1280 | { .bitrate = 480, | |
1281 | .hw_value = 0x800, | |
1282 | .hw_value_short = 0x800, }, | |
1283 | { .bitrate = 540, | |
1284 | .hw_value = 0x1000, | |
1285 | .hw_value_short = 0x1000, }, | |
1286 | }; | |
1287 | ||
1288 | /* can't be const, mac80211 writes to this */ | |
80301cdc | 1289 | static struct ieee80211_channel wl1251_channels[] = { |
2f01a1f5 KV |
1290 | { .hw_value = 1, .center_freq = 2412}, |
1291 | { .hw_value = 2, .center_freq = 2417}, | |
1292 | { .hw_value = 3, .center_freq = 2422}, | |
1293 | { .hw_value = 4, .center_freq = 2427}, | |
1294 | { .hw_value = 5, .center_freq = 2432}, | |
1295 | { .hw_value = 6, .center_freq = 2437}, | |
1296 | { .hw_value = 7, .center_freq = 2442}, | |
1297 | { .hw_value = 8, .center_freq = 2447}, | |
1298 | { .hw_value = 9, .center_freq = 2452}, | |
1299 | { .hw_value = 10, .center_freq = 2457}, | |
1300 | { .hw_value = 11, .center_freq = 2462}, | |
1301 | { .hw_value = 12, .center_freq = 2467}, | |
1302 | { .hw_value = 13, .center_freq = 2472}, | |
1303 | }; | |
1304 | ||
8a3a3c85 EP |
1305 | static int wl1251_op_conf_tx(struct ieee80211_hw *hw, |
1306 | struct ieee80211_vif *vif, u16 queue, | |
86dff7a7 KV |
1307 | const struct ieee80211_tx_queue_params *params) |
1308 | { | |
4ff6ffa1 | 1309 | enum wl1251_acx_ps_scheme ps_scheme; |
86dff7a7 KV |
1310 | struct wl1251 *wl = hw->priv; |
1311 | int ret; | |
1312 | ||
1313 | mutex_lock(&wl->mutex); | |
1314 | ||
1315 | wl1251_debug(DEBUG_MAC80211, "mac80211 conf tx %d", queue); | |
1316 | ||
1317 | ret = wl1251_ps_elp_wakeup(wl); | |
1318 | if (ret < 0) | |
1319 | goto out; | |
1320 | ||
85359499 | 1321 | /* mac80211 uses units of 32 usec */ |
86dff7a7 KV |
1322 | ret = wl1251_acx_ac_cfg(wl, wl1251_tx_get_queue(queue), |
1323 | params->cw_min, params->cw_max, | |
85359499 | 1324 | params->aifs, params->txop * 32); |
27336f1c KV |
1325 | if (ret < 0) |
1326 | goto out_sleep; | |
1327 | ||
4ff6ffa1 KV |
1328 | if (params->uapsd) |
1329 | ps_scheme = WL1251_ACX_PS_SCHEME_UPSD_TRIGGER; | |
1330 | else | |
1331 | ps_scheme = WL1251_ACX_PS_SCHEME_LEGACY; | |
1332 | ||
27336f1c | 1333 | ret = wl1251_acx_tid_cfg(wl, wl1251_tx_get_queue(queue), |
49e1b9fa | 1334 | CHANNEL_TYPE_EDCF, |
4ff6ffa1 | 1335 | wl1251_tx_get_queue(queue), ps_scheme, |
27336f1c KV |
1336 | WL1251_ACX_ACK_POLICY_LEGACY); |
1337 | if (ret < 0) | |
1338 | goto out_sleep; | |
86dff7a7 | 1339 | |
27336f1c | 1340 | out_sleep: |
86dff7a7 KV |
1341 | wl1251_ps_elp_sleep(wl); |
1342 | ||
1343 | out: | |
1344 | mutex_unlock(&wl->mutex); | |
1345 | ||
1346 | return ret; | |
1347 | } | |
1348 | ||
19434148 JL |
1349 | static int wl1251_op_get_survey(struct ieee80211_hw *hw, int idx, |
1350 | struct survey_info *survey) | |
1351 | { | |
1352 | struct wl1251 *wl = hw->priv; | |
1353 | struct ieee80211_conf *conf = &hw->conf; | |
1354 | ||
1355 | if (idx != 0) | |
1356 | return -ENOENT; | |
1357 | ||
675a0b04 | 1358 | survey->channel = conf->chandef.chan; |
19434148 JL |
1359 | survey->filled = SURVEY_INFO_NOISE_DBM; |
1360 | survey->noise = wl->noise; | |
1361 | ||
1362 | return 0; | |
1363 | } | |
1364 | ||
2f01a1f5 | 1365 | /* can't be const, mac80211 writes to this */ |
80301cdc KV |
1366 | static struct ieee80211_supported_band wl1251_band_2ghz = { |
1367 | .channels = wl1251_channels, | |
1368 | .n_channels = ARRAY_SIZE(wl1251_channels), | |
1369 | .bitrates = wl1251_rates, | |
1370 | .n_bitrates = ARRAY_SIZE(wl1251_rates), | |
2f01a1f5 KV |
1371 | }; |
1372 | ||
80301cdc KV |
1373 | static const struct ieee80211_ops wl1251_ops = { |
1374 | .start = wl1251_op_start, | |
1375 | .stop = wl1251_op_stop, | |
1376 | .add_interface = wl1251_op_add_interface, | |
1377 | .remove_interface = wl1251_op_remove_interface, | |
1378 | .config = wl1251_op_config, | |
9ed74ba0 | 1379 | .prepare_multicast = wl1251_op_prepare_multicast, |
80301cdc KV |
1380 | .configure_filter = wl1251_op_configure_filter, |
1381 | .tx = wl1251_op_tx, | |
1382 | .set_key = wl1251_op_set_key, | |
1383 | .hw_scan = wl1251_op_hw_scan, | |
1384 | .bss_info_changed = wl1251_op_bss_info_changed, | |
1385 | .set_rts_threshold = wl1251_op_set_rts_threshold, | |
86dff7a7 | 1386 | .conf_tx = wl1251_op_conf_tx, |
19434148 | 1387 | .get_survey = wl1251_op_get_survey, |
2f01a1f5 KV |
1388 | }; |
1389 | ||
61c2a80b GI |
1390 | static int wl1251_read_eeprom_byte(struct wl1251 *wl, off_t offset, u8 *data) |
1391 | { | |
1392 | unsigned long timeout; | |
1393 | ||
1394 | wl1251_reg_write32(wl, EE_ADDR, offset); | |
1395 | wl1251_reg_write32(wl, EE_CTL, EE_CTL_READ); | |
1396 | ||
1397 | /* EE_CTL_READ clears when data is ready */ | |
1398 | timeout = jiffies + msecs_to_jiffies(100); | |
1399 | while (1) { | |
1400 | if (!(wl1251_reg_read32(wl, EE_CTL) & EE_CTL_READ)) | |
1401 | break; | |
1402 | ||
1403 | if (time_after(jiffies, timeout)) | |
1404 | return -ETIMEDOUT; | |
1405 | ||
1406 | msleep(1); | |
1407 | } | |
1408 | ||
1409 | *data = wl1251_reg_read32(wl, EE_DATA); | |
1410 | return 0; | |
1411 | } | |
1412 | ||
1413 | static int wl1251_read_eeprom(struct wl1251 *wl, off_t offset, | |
1414 | u8 *data, size_t len) | |
1415 | { | |
1416 | size_t i; | |
1417 | int ret; | |
1418 | ||
1419 | wl1251_reg_write32(wl, EE_START, 0); | |
1420 | ||
1421 | for (i = 0; i < len; i++) { | |
1422 | ret = wl1251_read_eeprom_byte(wl, offset + i, &data[i]); | |
1423 | if (ret < 0) | |
1424 | return ret; | |
1425 | } | |
1426 | ||
1427 | return 0; | |
1428 | } | |
1429 | ||
1430 | static int wl1251_read_eeprom_mac(struct wl1251 *wl) | |
1431 | { | |
1432 | u8 mac[ETH_ALEN]; | |
1433 | int i, ret; | |
1434 | ||
1435 | wl1251_set_partition(wl, 0, 0, REGISTERS_BASE, REGISTERS_DOWN_SIZE); | |
1436 | ||
1437 | ret = wl1251_read_eeprom(wl, 0x1c, mac, sizeof(mac)); | |
1438 | if (ret < 0) { | |
1439 | wl1251_warning("failed to read MAC address from EEPROM"); | |
1440 | return ret; | |
1441 | } | |
1442 | ||
1443 | /* MAC is stored in reverse order */ | |
1444 | for (i = 0; i < ETH_ALEN; i++) | |
1445 | wl->mac_addr[i] = mac[ETH_ALEN - i - 1]; | |
1446 | ||
1447 | return 0; | |
1448 | } | |
1449 | ||
80301cdc | 1450 | static int wl1251_register_hw(struct wl1251 *wl) |
2f01a1f5 KV |
1451 | { |
1452 | int ret; | |
1453 | ||
1454 | if (wl->mac80211_registered) | |
1455 | return 0; | |
1456 | ||
1457 | SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr); | |
1458 | ||
1459 | ret = ieee80211_register_hw(wl->hw); | |
1460 | if (ret < 0) { | |
80301cdc | 1461 | wl1251_error("unable to register mac80211 hw: %d", ret); |
2f01a1f5 KV |
1462 | return ret; |
1463 | } | |
1464 | ||
1465 | wl->mac80211_registered = true; | |
1466 | ||
80301cdc | 1467 | wl1251_notice("loaded"); |
2f01a1f5 KV |
1468 | |
1469 | return 0; | |
1470 | } | |
1471 | ||
8e639c06 | 1472 | int wl1251_init_ieee80211(struct wl1251 *wl) |
2f01a1f5 | 1473 | { |
8e639c06 BC |
1474 | int ret; |
1475 | ||
2f01a1f5 KV |
1476 | /* The tx descriptor buffer and the TKIP space */ |
1477 | wl->hw->extra_tx_headroom = sizeof(struct tx_double_buffer_desc) | |
9f2ad4fb | 1478 | + WL1251_TKIP_IV_SPACE; |
2f01a1f5 KV |
1479 | |
1480 | /* unit us */ | |
1481 | /* FIXME: find a proper value */ | |
2f01a1f5 | 1482 | |
30686bf7 JB |
1483 | ieee80211_hw_set(wl->hw, SIGNAL_DBM); |
1484 | ieee80211_hw_set(wl->hw, SUPPORTS_PS); | |
2f01a1f5 | 1485 | |
43d13644 DG |
1486 | wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | |
1487 | BIT(NL80211_IFTYPE_ADHOC); | |
2f01a1f5 | 1488 | wl->hw->wiphy->max_scan_ssids = 1; |
57fbcce3 | 1489 | wl->hw->wiphy->bands[NL80211_BAND_2GHZ] = &wl1251_band_2ghz; |
2f01a1f5 | 1490 | |
da2fb4e9 KV |
1491 | wl->hw->queues = 4; |
1492 | ||
61c2a80b GI |
1493 | if (wl->use_eeprom) |
1494 | wl1251_read_eeprom_mac(wl); | |
1495 | ||
8e639c06 BC |
1496 | ret = wl1251_register_hw(wl); |
1497 | if (ret) | |
1498 | goto out; | |
2f01a1f5 | 1499 | |
8e639c06 BC |
1500 | wl1251_debugfs_init(wl); |
1501 | wl1251_notice("initialized"); | |
2f01a1f5 | 1502 | |
8e639c06 BC |
1503 | ret = 0; |
1504 | ||
1505 | out: | |
1506 | return ret; | |
1507 | } | |
af8c78eb | 1508 | EXPORT_SYMBOL_GPL(wl1251_init_ieee80211); |
08d9f572 | 1509 | |
8e639c06 | 1510 | struct ieee80211_hw *wl1251_alloc_hw(void) |
2f01a1f5 | 1511 | { |
2f01a1f5 | 1512 | struct ieee80211_hw *hw; |
80301cdc | 1513 | struct wl1251 *wl; |
8e639c06 | 1514 | int i; |
2f01a1f5 KV |
1515 | static const u8 nokia_oui[3] = {0x00, 0x1f, 0xdf}; |
1516 | ||
80301cdc | 1517 | hw = ieee80211_alloc_hw(sizeof(*wl), &wl1251_ops); |
2f01a1f5 | 1518 | if (!hw) { |
80301cdc | 1519 | wl1251_error("could not alloc ieee80211_hw"); |
8e639c06 | 1520 | return ERR_PTR(-ENOMEM); |
2f01a1f5 KV |
1521 | } |
1522 | ||
1523 | wl = hw->priv; | |
1524 | memset(wl, 0, sizeof(*wl)); | |
1525 | ||
1526 | wl->hw = hw; | |
2f01a1f5 KV |
1527 | |
1528 | wl->data_in_count = 0; | |
1529 | ||
1530 | skb_queue_head_init(&wl->tx_queue); | |
1531 | ||
d5da79ac | 1532 | INIT_DELAYED_WORK(&wl->elp_work, wl1251_elp_work); |
80301cdc | 1533 | wl->channel = WL1251_DEFAULT_CHANNEL; |
4d09b537 | 1534 | wl->monitor_present = false; |
c8909e5a | 1535 | wl->joined = false; |
2f01a1f5 | 1536 | wl->scanning = false; |
c8909e5a | 1537 | wl->bss_type = MAX_BSS_TYPE; |
2f01a1f5 KV |
1538 | wl->default_key = 0; |
1539 | wl->listen_int = 1; | |
1540 | wl->rx_counter = 0; | |
1541 | wl->rx_handled = 0; | |
1542 | wl->rx_current_buffer = 0; | |
1543 | wl->rx_last_id = 0; | |
80301cdc KV |
1544 | wl->rx_config = WL1251_DEFAULT_RX_CONFIG; |
1545 | wl->rx_filter = WL1251_DEFAULT_RX_FILTER; | |
2f01a1f5 | 1546 | wl->elp = false; |
a0bbb58b | 1547 | wl->station_mode = STATION_ACTIVE_MODE; |
2f01a1f5 | 1548 | wl->psm_requested = false; |
f7ad1eed | 1549 | wl->psm_entry_retry = 0; |
2f01a1f5 | 1550 | wl->tx_queue_stopped = false; |
80301cdc | 1551 | wl->power_level = WL1251_DEFAULT_POWER_LEVEL; |
8964e492 | 1552 | wl->rssi_thold = 0; |
e2fd4611 KV |
1553 | wl->beacon_int = WL1251_DEFAULT_BEACON_INT; |
1554 | wl->dtim_period = WL1251_DEFAULT_DTIM_PERIOD; | |
287f6f96 | 1555 | wl->vif = NULL; |
2f01a1f5 | 1556 | |
2f01a1f5 KV |
1557 | for (i = 0; i < FW_TX_CMPLT_BLOCK_SIZE; i++) |
1558 | wl->tx_frames[i] = NULL; | |
1559 | ||
1560 | wl->next_tx_complete = 0; | |
1561 | ||
0e71bb08 KV |
1562 | INIT_WORK(&wl->irq_work, wl1251_irq_work); |
1563 | INIT_WORK(&wl->tx_work, wl1251_tx_work); | |
1564 | ||
2f01a1f5 KV |
1565 | /* |
1566 | * In case our MAC address is not correctly set, | |
1567 | * we use a random but Nokia MAC. | |
1568 | */ | |
1569 | memcpy(wl->mac_addr, nokia_oui, 3); | |
1570 | get_random_bytes(wl->mac_addr + 3, 3); | |
1571 | ||
80301cdc | 1572 | wl->state = WL1251_STATE_OFF; |
2f01a1f5 | 1573 | mutex_init(&wl->mutex); |
f581a0dd | 1574 | spin_lock_init(&wl->wl_lock); |
2f01a1f5 KV |
1575 | |
1576 | wl->tx_mgmt_frm_rate = DEFAULT_HW_GEN_TX_RATE; | |
1577 | wl->tx_mgmt_frm_mod = DEFAULT_HW_GEN_MODULATION_TYPE; | |
1578 | ||
4721213f KV |
1579 | wl->rx_descriptor = kmalloc(sizeof(*wl->rx_descriptor), GFP_KERNEL); |
1580 | if (!wl->rx_descriptor) { | |
80301cdc | 1581 | wl1251_error("could not allocate memory for rx descriptor"); |
8e639c06 BC |
1582 | ieee80211_free_hw(hw); |
1583 | return ERR_PTR(-ENOMEM); | |
4721213f KV |
1584 | } |
1585 | ||
8e639c06 | 1586 | return hw; |
2f01a1f5 | 1587 | } |
af8c78eb | 1588 | EXPORT_SYMBOL_GPL(wl1251_alloc_hw); |
2f01a1f5 | 1589 | |
8e639c06 | 1590 | int wl1251_free_hw(struct wl1251 *wl) |
2f01a1f5 | 1591 | { |
2f01a1f5 KV |
1592 | ieee80211_unregister_hw(wl->hw); |
1593 | ||
80301cdc | 1594 | wl1251_debugfs_exit(wl); |
2f01a1f5 | 1595 | |
2f01a1f5 KV |
1596 | kfree(wl->target_mem_map); |
1597 | kfree(wl->data_path); | |
c74ddfd5 | 1598 | vfree(wl->fw); |
2f01a1f5 KV |
1599 | wl->fw = NULL; |
1600 | kfree(wl->nvs); | |
1601 | wl->nvs = NULL; | |
4721213f KV |
1602 | |
1603 | kfree(wl->rx_descriptor); | |
1604 | wl->rx_descriptor = NULL; | |
1605 | ||
2f01a1f5 KV |
1606 | ieee80211_free_hw(wl->hw); |
1607 | ||
1608 | return 0; | |
1609 | } | |
af8c78eb BC |
1610 | EXPORT_SYMBOL_GPL(wl1251_free_hw); |
1611 | ||
fcc658da | 1612 | MODULE_DESCRIPTION("TI wl1251 Wireless LAN Driver Core"); |
af8c78eb | 1613 | MODULE_LICENSE("GPL"); |
31c726f0 | 1614 | MODULE_AUTHOR("Kalle Valo <kvalo@adurom.com>"); |
49f146de | 1615 | MODULE_FIRMWARE(WL1251_FW_NAME); |
deb6e6b7 | 1616 | MODULE_FIRMWARE(WL1251_NVS_NAME); |