Commit | Line | Data |
---|---|---|
5b435de0 AS |
1 | /* |
2 | * Copyright (c) 2010 Broadcom Corporation | |
af44e258 | 3 | * Copyright (c) 2013 Hauke Mehrtens <hauke@hauke-m.de> |
5b435de0 AS |
4 | * |
5 | * Permission to use, copy, modify, and/or distribute this software for any | |
6 | * purpose with or without fee is hereby granted, provided that the above | |
7 | * copyright notice and this permission notice appear in all copies. | |
8 | * | |
9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY | |
12 | * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION | |
14 | * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN | |
15 | * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
16 | */ | |
17 | ||
18 | #define __UNDEF_NO_VERSION__ | |
02f77195 | 19 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
5b435de0 AS |
20 | |
21 | #include <linux/etherdevice.h> | |
5b435de0 AS |
22 | #include <linux/sched.h> |
23 | #include <linux/firmware.h> | |
24 | #include <linux/interrupt.h> | |
45296236 | 25 | #include <linux/module.h> |
2e756560 | 26 | #include <linux/bcma/bcma.h> |
5b435de0 AS |
27 | #include <net/mac80211.h> |
28 | #include <defs.h> | |
5b435de0 AS |
29 | #include "phy/phy_int.h" |
30 | #include "d11.h" | |
31 | #include "channel.h" | |
32 | #include "scb.h" | |
33 | #include "pub.h" | |
34 | #include "ucode_loader.h" | |
35 | #include "mac80211_if.h" | |
36 | #include "main.h" | |
b353dda4 | 37 | #include "debug.h" |
cd864522 | 38 | #include "led.h" |
5b435de0 AS |
39 | |
40 | #define N_TX_QUEUES 4 /* #tx queues on mac80211<->driver interface */ | |
7b2385b9 | 41 | #define BRCMS_FLUSH_TIMEOUT 500 /* msec */ |
5b435de0 AS |
42 | |
43 | /* Flags we support */ | |
44 | #define MAC_FILTERS (FIF_PROMISC_IN_BSS | \ | |
45 | FIF_ALLMULTI | \ | |
46 | FIF_FCSFAIL | \ | |
5b435de0 AS |
47 | FIF_CONTROL | \ |
48 | FIF_OTHER_BSS | \ | |
be667669 AB |
49 | FIF_BCN_PRBRESP_PROMISC | \ |
50 | FIF_PSPOLL) | |
5b435de0 AS |
51 | |
52 | #define CHAN2GHZ(channel, freqency, chflags) { \ | |
53 | .band = IEEE80211_BAND_2GHZ, \ | |
54 | .center_freq = (freqency), \ | |
55 | .hw_value = (channel), \ | |
56 | .flags = chflags, \ | |
57 | .max_antenna_gain = 0, \ | |
58 | .max_power = 19, \ | |
59 | } | |
60 | ||
61 | #define CHAN5GHZ(channel, chflags) { \ | |
62 | .band = IEEE80211_BAND_5GHZ, \ | |
63 | .center_freq = 5000 + 5*(channel), \ | |
64 | .hw_value = (channel), \ | |
65 | .flags = chflags, \ | |
66 | .max_antenna_gain = 0, \ | |
67 | .max_power = 21, \ | |
68 | } | |
69 | ||
70 | #define RATE(rate100m, _flags) { \ | |
71 | .bitrate = (rate100m), \ | |
72 | .flags = (_flags), \ | |
73 | .hw_value = (rate100m / 5), \ | |
74 | } | |
75 | ||
76 | struct firmware_hdr { | |
77 | __le32 offset; | |
78 | __le32 len; | |
79 | __le32 idx; | |
80 | }; | |
81 | ||
82 | static const char * const brcms_firmwares[MAX_FW_IMAGES] = { | |
83 | "brcm/bcm43xx", | |
84 | NULL | |
85 | }; | |
86 | ||
87 | static int n_adapters_found; | |
88 | ||
89 | MODULE_AUTHOR("Broadcom Corporation"); | |
90 | MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN driver."); | |
91 | MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN cards"); | |
92 | MODULE_LICENSE("Dual BSD/GPL"); | |
faa97bd4 JM |
93 | /* This needs to be adjusted when brcms_firmwares changes */ |
94 | MODULE_FIRMWARE("brcm/bcm43xx-0.fw"); | |
95 | MODULE_FIRMWARE("brcm/bcm43xx_hdr-0.fw"); | |
5b435de0 | 96 | |
2e756560 AS |
97 | /* recognized BCMA Core IDs */ |
98 | static struct bcma_device_id brcms_coreid_table[] = { | |
6f80f014 | 99 | BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 17, BCMA_ANY_CLASS), |
eb032f03 AS |
100 | BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 23, BCMA_ANY_CLASS), |
101 | BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 24, BCMA_ANY_CLASS), | |
2e756560 AS |
102 | BCMA_CORETABLE_END |
103 | }; | |
104 | MODULE_DEVICE_TABLE(bcma, brcms_coreid_table); | |
5b435de0 | 105 | |
b0341744 SF |
106 | #if defined(CONFIG_BRCMDBG) |
107 | /* | |
108 | * Module parameter for setting the debug message level. Available | |
109 | * flags are specified by the BRCM_DL_* macros in | |
110 | * drivers/net/wireless/brcm80211/include/defs.h. | |
111 | */ | |
112 | module_param_named(debug, brcm_msg_level, uint, S_IRUGO | S_IWUSR); | |
113 | #endif | |
5b435de0 AS |
114 | |
115 | static struct ieee80211_channel brcms_2ghz_chantable[] = { | |
116 | CHAN2GHZ(1, 2412, IEEE80211_CHAN_NO_HT40MINUS), | |
117 | CHAN2GHZ(2, 2417, IEEE80211_CHAN_NO_HT40MINUS), | |
118 | CHAN2GHZ(3, 2422, IEEE80211_CHAN_NO_HT40MINUS), | |
119 | CHAN2GHZ(4, 2427, IEEE80211_CHAN_NO_HT40MINUS), | |
120 | CHAN2GHZ(5, 2432, 0), | |
121 | CHAN2GHZ(6, 2437, 0), | |
122 | CHAN2GHZ(7, 2442, 0), | |
123 | CHAN2GHZ(8, 2447, IEEE80211_CHAN_NO_HT40PLUS), | |
124 | CHAN2GHZ(9, 2452, IEEE80211_CHAN_NO_HT40PLUS), | |
125 | CHAN2GHZ(10, 2457, IEEE80211_CHAN_NO_HT40PLUS), | |
126 | CHAN2GHZ(11, 2462, IEEE80211_CHAN_NO_HT40PLUS), | |
127 | CHAN2GHZ(12, 2467, | |
128 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS | | |
129 | IEEE80211_CHAN_NO_HT40PLUS), | |
130 | CHAN2GHZ(13, 2472, | |
131 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS | | |
132 | IEEE80211_CHAN_NO_HT40PLUS), | |
133 | CHAN2GHZ(14, 2484, | |
134 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS | | |
7f38e5bc SF |
135 | IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS | |
136 | IEEE80211_CHAN_NO_OFDM) | |
5b435de0 AS |
137 | }; |
138 | ||
139 | static struct ieee80211_channel brcms_5ghz_nphy_chantable[] = { | |
140 | /* UNII-1 */ | |
141 | CHAN5GHZ(36, IEEE80211_CHAN_NO_HT40MINUS), | |
142 | CHAN5GHZ(40, IEEE80211_CHAN_NO_HT40PLUS), | |
143 | CHAN5GHZ(44, IEEE80211_CHAN_NO_HT40MINUS), | |
144 | CHAN5GHZ(48, IEEE80211_CHAN_NO_HT40PLUS), | |
145 | /* UNII-2 */ | |
146 | CHAN5GHZ(52, | |
147 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
148 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), | |
149 | CHAN5GHZ(56, | |
150 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
151 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), | |
152 | CHAN5GHZ(60, | |
153 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
154 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), | |
155 | CHAN5GHZ(64, | |
156 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
157 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), | |
158 | /* MID */ | |
159 | CHAN5GHZ(100, | |
160 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
161 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), | |
162 | CHAN5GHZ(104, | |
163 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
164 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), | |
165 | CHAN5GHZ(108, | |
166 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
167 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), | |
168 | CHAN5GHZ(112, | |
169 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
170 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), | |
171 | CHAN5GHZ(116, | |
172 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
173 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), | |
174 | CHAN5GHZ(120, | |
175 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
176 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), | |
177 | CHAN5GHZ(124, | |
178 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
179 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), | |
180 | CHAN5GHZ(128, | |
181 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
182 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), | |
183 | CHAN5GHZ(132, | |
184 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
185 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS), | |
186 | CHAN5GHZ(136, | |
187 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
188 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS), | |
189 | CHAN5GHZ(140, | |
190 | IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS | | |
191 | IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS | | |
192 | IEEE80211_CHAN_NO_HT40MINUS), | |
193 | /* UNII-3 */ | |
194 | CHAN5GHZ(149, IEEE80211_CHAN_NO_HT40MINUS), | |
195 | CHAN5GHZ(153, IEEE80211_CHAN_NO_HT40PLUS), | |
196 | CHAN5GHZ(157, IEEE80211_CHAN_NO_HT40MINUS), | |
197 | CHAN5GHZ(161, IEEE80211_CHAN_NO_HT40PLUS), | |
198 | CHAN5GHZ(165, IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS) | |
199 | }; | |
200 | ||
201 | /* | |
202 | * The rate table is used for both 2.4G and 5G rates. The | |
203 | * latter being a subset as it does not support CCK rates. | |
204 | */ | |
205 | static struct ieee80211_rate legacy_ratetable[] = { | |
206 | RATE(10, 0), | |
207 | RATE(20, IEEE80211_RATE_SHORT_PREAMBLE), | |
208 | RATE(55, IEEE80211_RATE_SHORT_PREAMBLE), | |
209 | RATE(110, IEEE80211_RATE_SHORT_PREAMBLE), | |
210 | RATE(60, 0), | |
211 | RATE(90, 0), | |
212 | RATE(120, 0), | |
213 | RATE(180, 0), | |
214 | RATE(240, 0), | |
215 | RATE(360, 0), | |
216 | RATE(480, 0), | |
217 | RATE(540, 0), | |
218 | }; | |
219 | ||
220 | static const struct ieee80211_supported_band brcms_band_2GHz_nphy_template = { | |
221 | .band = IEEE80211_BAND_2GHZ, | |
222 | .channels = brcms_2ghz_chantable, | |
223 | .n_channels = ARRAY_SIZE(brcms_2ghz_chantable), | |
224 | .bitrates = legacy_ratetable, | |
225 | .n_bitrates = ARRAY_SIZE(legacy_ratetable), | |
226 | .ht_cap = { | |
227 | /* from include/linux/ieee80211.h */ | |
228 | .cap = IEEE80211_HT_CAP_GRN_FLD | | |
6b1a89af | 229 | IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_SGI_40, |
5b435de0 AS |
230 | .ht_supported = true, |
231 | .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, | |
232 | .ampdu_density = AMPDU_DEF_MPDU_DENSITY, | |
233 | .mcs = { | |
234 | /* placeholders for now */ | |
235 | .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0}, | |
236 | .rx_highest = cpu_to_le16(500), | |
237 | .tx_params = IEEE80211_HT_MCS_TX_DEFINED} | |
238 | } | |
239 | }; | |
240 | ||
241 | static const struct ieee80211_supported_band brcms_band_5GHz_nphy_template = { | |
242 | .band = IEEE80211_BAND_5GHZ, | |
243 | .channels = brcms_5ghz_nphy_chantable, | |
244 | .n_channels = ARRAY_SIZE(brcms_5ghz_nphy_chantable), | |
245 | .bitrates = legacy_ratetable + BRCMS_LEGACY_5G_RATE_OFFSET, | |
246 | .n_bitrates = ARRAY_SIZE(legacy_ratetable) - | |
247 | BRCMS_LEGACY_5G_RATE_OFFSET, | |
248 | .ht_cap = { | |
249 | .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 | | |
6b1a89af | 250 | IEEE80211_HT_CAP_SGI_40, |
5b435de0 AS |
251 | .ht_supported = true, |
252 | .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, | |
253 | .ampdu_density = AMPDU_DEF_MPDU_DENSITY, | |
254 | .mcs = { | |
255 | /* placeholders for now */ | |
256 | .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0}, | |
257 | .rx_highest = cpu_to_le16(500), | |
258 | .tx_params = IEEE80211_HT_MCS_TX_DEFINED} | |
259 | } | |
260 | }; | |
261 | ||
262 | /* flags the given rate in rateset as requested */ | |
263 | static void brcms_set_basic_rate(struct brcm_rateset *rs, u16 rate, bool is_br) | |
264 | { | |
265 | u32 i; | |
266 | ||
267 | for (i = 0; i < rs->count; i++) { | |
268 | if (rate != (rs->rates[i] & 0x7f)) | |
269 | continue; | |
270 | ||
271 | if (is_br) | |
272 | rs->rates[i] |= BRCMS_RATE_FLAG; | |
273 | else | |
274 | rs->rates[i] &= BRCMS_RATE_MASK; | |
275 | return; | |
276 | } | |
277 | } | |
278 | ||
25b5632f AS |
279 | /** |
280 | * This function frees the WL per-device resources. | |
281 | * | |
282 | * This function frees resources owned by the WL device pointed to | |
283 | * by the wl parameter. | |
284 | * | |
285 | * precondition: can both be called locked and unlocked | |
286 | * | |
287 | */ | |
288 | static void brcms_free(struct brcms_info *wl) | |
289 | { | |
290 | struct brcms_timer *t, *next; | |
291 | ||
292 | /* free ucode data */ | |
293 | if (wl->fw.fw_cnt) | |
294 | brcms_ucode_data_free(&wl->ucode); | |
295 | if (wl->irq) | |
296 | free_irq(wl->irq, wl); | |
297 | ||
298 | /* kill dpc */ | |
299 | tasklet_kill(&wl->tasklet); | |
300 | ||
301 | if (wl->pub) { | |
302 | brcms_debugfs_detach(wl->pub); | |
303 | brcms_c_module_unregister(wl->pub, "linux", wl); | |
304 | } | |
305 | ||
306 | /* free common resources */ | |
307 | if (wl->wlc) { | |
308 | brcms_c_detach(wl->wlc); | |
309 | wl->wlc = NULL; | |
310 | wl->pub = NULL; | |
311 | } | |
312 | ||
313 | /* virtual interface deletion is deferred so we cannot spinwait */ | |
314 | ||
315 | /* wait for all pending callbacks to complete */ | |
316 | while (atomic_read(&wl->callbacks) > 0) | |
317 | schedule(); | |
318 | ||
319 | /* free timers */ | |
320 | for (t = wl->timers; t; t = next) { | |
321 | next = t->next; | |
322 | #ifdef DEBUG | |
323 | kfree(t->name); | |
324 | #endif | |
325 | kfree(t); | |
326 | } | |
327 | } | |
328 | ||
329 | /* | |
330 | * called from both kernel as from this kernel module (error flow on attach) | |
331 | * precondition: perimeter lock is not acquired. | |
332 | */ | |
333 | static void brcms_remove(struct bcma_device *pdev) | |
334 | { | |
335 | struct ieee80211_hw *hw = bcma_get_drvdata(pdev); | |
336 | struct brcms_info *wl = hw->priv; | |
337 | ||
338 | if (wl->wlc) { | |
d1497f21 | 339 | brcms_led_unregister(wl); |
25b5632f AS |
340 | wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false); |
341 | wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy); | |
342 | ieee80211_unregister_hw(hw); | |
343 | } | |
344 | ||
345 | brcms_free(wl); | |
346 | ||
347 | bcma_set_drvdata(pdev, NULL); | |
348 | ieee80211_free_hw(hw); | |
349 | } | |
350 | ||
351 | /* | |
352 | * Precondition: Since this function is called in brcms_pci_probe() context, | |
353 | * no locking is required. | |
354 | */ | |
355 | static void brcms_release_fw(struct brcms_info *wl) | |
356 | { | |
357 | int i; | |
358 | for (i = 0; i < MAX_FW_IMAGES; i++) { | |
359 | release_firmware(wl->fw.fw_bin[i]); | |
360 | release_firmware(wl->fw.fw_hdr[i]); | |
361 | } | |
362 | } | |
363 | ||
364 | /* | |
365 | * Precondition: Since this function is called in brcms_pci_probe() context, | |
366 | * no locking is required. | |
367 | */ | |
368 | static int brcms_request_fw(struct brcms_info *wl, struct bcma_device *pdev) | |
369 | { | |
370 | int status; | |
371 | struct device *device = &pdev->dev; | |
372 | char fw_name[100]; | |
373 | int i; | |
374 | ||
375 | memset(&wl->fw, 0, sizeof(struct brcms_firmware)); | |
376 | for (i = 0; i < MAX_FW_IMAGES; i++) { | |
377 | if (brcms_firmwares[i] == NULL) | |
378 | break; | |
379 | sprintf(fw_name, "%s-%d.fw", brcms_firmwares[i], | |
380 | UCODE_LOADER_API_VER); | |
381 | status = request_firmware(&wl->fw.fw_bin[i], fw_name, device); | |
382 | if (status) { | |
383 | wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n", | |
384 | KBUILD_MODNAME, fw_name); | |
385 | return status; | |
386 | } | |
387 | sprintf(fw_name, "%s_hdr-%d.fw", brcms_firmwares[i], | |
388 | UCODE_LOADER_API_VER); | |
389 | status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device); | |
390 | if (status) { | |
391 | wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n", | |
392 | KBUILD_MODNAME, fw_name); | |
393 | return status; | |
394 | } | |
395 | wl->fw.hdr_num_entries[i] = | |
396 | wl->fw.fw_hdr[i]->size / (sizeof(struct firmware_hdr)); | |
397 | } | |
398 | wl->fw.fw_cnt = i; | |
399 | status = brcms_ucode_data_init(wl, &wl->ucode); | |
400 | brcms_release_fw(wl); | |
401 | return status; | |
402 | } | |
403 | ||
36323f81 TH |
404 | static void brcms_ops_tx(struct ieee80211_hw *hw, |
405 | struct ieee80211_tx_control *control, | |
406 | struct sk_buff *skb) | |
5b435de0 AS |
407 | { |
408 | struct brcms_info *wl = hw->priv; | |
644e8c07 | 409 | struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); |
5b435de0 AS |
410 | |
411 | spin_lock_bh(&wl->lock); | |
412 | if (!wl->pub->up) { | |
b353dda4 | 413 | brcms_err(wl->wlc->hw->d11core, "ops->tx called while down\n"); |
5b435de0 AS |
414 | kfree_skb(skb); |
415 | goto done; | |
416 | } | |
c4dea35e PH |
417 | if (brcms_c_sendpkt_mac80211(wl->wlc, skb, hw)) |
418 | tx_info->rate_driver_data[0] = control->sta; | |
5b435de0 AS |
419 | done: |
420 | spin_unlock_bh(&wl->lock); | |
421 | } | |
422 | ||
423 | static int brcms_ops_start(struct ieee80211_hw *hw) | |
424 | { | |
425 | struct brcms_info *wl = hw->priv; | |
426 | bool blocked; | |
2646c46d | 427 | int err; |
5b435de0 AS |
428 | |
429 | ieee80211_wake_queues(hw); | |
430 | spin_lock_bh(&wl->lock); | |
431 | blocked = brcms_rfkill_set_hw_state(wl); | |
432 | spin_unlock_bh(&wl->lock); | |
433 | if (!blocked) | |
434 | wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy); | |
435 | ||
25b5632f AS |
436 | if (!wl->ucode.bcm43xx_bomminor) { |
437 | err = brcms_request_fw(wl, wl->wlc->hw->d11core); | |
438 | if (err) { | |
439 | brcms_remove(wl->wlc->hw->d11core); | |
440 | return -ENOENT; | |
441 | } | |
442 | } | |
443 | ||
2646c46d | 444 | spin_lock_bh(&wl->lock); |
dc460127 RV |
445 | /* avoid acknowledging frames before a non-monitor device is added */ |
446 | wl->mute_tx = true; | |
447 | ||
2646c46d | 448 | if (!wl->pub->up) |
82d8eba3 PH |
449 | if (!blocked) |
450 | err = brcms_up(wl); | |
451 | else | |
452 | err = -ERFKILL; | |
2646c46d RV |
453 | else |
454 | err = -ENODEV; | |
455 | spin_unlock_bh(&wl->lock); | |
456 | ||
457 | if (err != 0) | |
b353dda4 SF |
458 | brcms_err(wl->wlc->hw->d11core, "%s: brcms_up() returned %d\n", |
459 | __func__, err); | |
2646c46d | 460 | return err; |
5b435de0 AS |
461 | } |
462 | ||
463 | static void brcms_ops_stop(struct ieee80211_hw *hw) | |
464 | { | |
2646c46d RV |
465 | struct brcms_info *wl = hw->priv; |
466 | int status; | |
467 | ||
5b435de0 | 468 | ieee80211_stop_queues(hw); |
2646c46d RV |
469 | |
470 | if (wl->wlc == NULL) | |
471 | return; | |
472 | ||
473 | spin_lock_bh(&wl->lock); | |
cacaa64b | 474 | status = brcms_c_chipmatch(wl->wlc->hw->d11core); |
2646c46d RV |
475 | spin_unlock_bh(&wl->lock); |
476 | if (!status) { | |
b353dda4 | 477 | brcms_err(wl->wlc->hw->d11core, |
2646c46d RV |
478 | "wl: brcms_ops_stop: chipmatch failed\n"); |
479 | return; | |
480 | } | |
481 | ||
482 | /* put driver in down state */ | |
483 | spin_lock_bh(&wl->lock); | |
484 | brcms_down(wl); | |
485 | spin_unlock_bh(&wl->lock); | |
5b435de0 AS |
486 | } |
487 | ||
488 | static int | |
489 | brcms_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) | |
490 | { | |
dc460127 RV |
491 | struct brcms_info *wl = hw->priv; |
492 | ||
c55b3766 | 493 | /* Just STA, AP and ADHOC for now */ |
492b71e8 | 494 | if (vif->type != NL80211_IFTYPE_STATION && |
c55b3766 HM |
495 | vif->type != NL80211_IFTYPE_AP && |
496 | vif->type != NL80211_IFTYPE_ADHOC) { | |
b353dda4 | 497 | brcms_err(wl->wlc->hw->d11core, |
c55b3766 | 498 | "%s: Attempt to add type %d, only STA, AP and AdHoc for now\n", |
b353dda4 | 499 | __func__, vif->type); |
5b435de0 AS |
500 | return -EOPNOTSUPP; |
501 | } | |
502 | ||
66578c0a | 503 | spin_lock_bh(&wl->lock); |
dc460127 RV |
504 | wl->mute_tx = false; |
505 | brcms_c_mute(wl->wlc, false); | |
70268ce2 HM |
506 | if (vif->type == NL80211_IFTYPE_STATION) |
507 | brcms_c_start_station(wl->wlc, vif->addr); | |
492b71e8 HM |
508 | else if (vif->type == NL80211_IFTYPE_AP) |
509 | brcms_c_start_ap(wl->wlc, vif->addr, vif->bss_conf.bssid, | |
510 | vif->bss_conf.ssid, vif->bss_conf.ssid_len); | |
c55b3766 HM |
511 | else if (vif->type == NL80211_IFTYPE_ADHOC) |
512 | brcms_c_start_adhoc(wl->wlc, vif->addr); | |
66578c0a | 513 | spin_unlock_bh(&wl->lock); |
dc460127 | 514 | |
2646c46d | 515 | return 0; |
5b435de0 AS |
516 | } |
517 | ||
518 | static void | |
519 | brcms_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif) | |
520 | { | |
5b435de0 AS |
521 | } |
522 | ||
523 | static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed) | |
524 | { | |
525 | struct ieee80211_conf *conf = &hw->conf; | |
526 | struct brcms_info *wl = hw->priv; | |
b353dda4 | 527 | struct bcma_device *core = wl->wlc->hw->d11core; |
5b435de0 AS |
528 | int err = 0; |
529 | int new_int; | |
5b435de0 AS |
530 | |
531 | spin_lock_bh(&wl->lock); | |
532 | if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) { | |
533 | brcms_c_set_beacon_listen_interval(wl->wlc, | |
534 | conf->listen_interval); | |
535 | } | |
536 | if (changed & IEEE80211_CONF_CHANGE_MONITOR) | |
b353dda4 SF |
537 | brcms_dbg_info(core, "%s: change monitor mode: %s\n", |
538 | __func__, conf->flags & IEEE80211_CONF_MONITOR ? | |
539 | "true" : "false"); | |
5b435de0 | 540 | if (changed & IEEE80211_CONF_CHANGE_PS) |
b353dda4 | 541 | brcms_err(core, "%s: change power-save mode: %s (implement)\n", |
5b435de0 AS |
542 | __func__, conf->flags & IEEE80211_CONF_PS ? |
543 | "true" : "false"); | |
544 | ||
545 | if (changed & IEEE80211_CONF_CHANGE_POWER) { | |
546 | err = brcms_c_set_tx_power(wl->wlc, conf->power_level); | |
547 | if (err < 0) { | |
b353dda4 | 548 | brcms_err(core, "%s: Error setting power_level\n", |
5b435de0 AS |
549 | __func__); |
550 | goto config_out; | |
551 | } | |
552 | new_int = brcms_c_get_tx_power(wl->wlc); | |
553 | if (new_int != conf->power_level) | |
b353dda4 SF |
554 | brcms_err(core, |
555 | "%s: Power level req != actual, %d %d\n", | |
556 | __func__, conf->power_level, | |
5b435de0 AS |
557 | new_int); |
558 | } | |
559 | if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { | |
675a0b04 KB |
560 | if (conf->chandef.width == NL80211_CHAN_WIDTH_20 || |
561 | conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT) | |
5b435de0 | 562 | err = brcms_c_set_channel(wl->wlc, |
675a0b04 | 563 | conf->chandef.chan->hw_value); |
5b435de0 AS |
564 | else |
565 | err = -ENOTSUPP; | |
566 | } | |
567 | if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS) | |
568 | err = brcms_c_set_rate_limit(wl->wlc, | |
569 | conf->short_frame_max_tx_count, | |
570 | conf->long_frame_max_tx_count); | |
571 | ||
572 | config_out: | |
573 | spin_unlock_bh(&wl->lock); | |
574 | return err; | |
575 | } | |
576 | ||
577 | static void | |
578 | brcms_ops_bss_info_changed(struct ieee80211_hw *hw, | |
579 | struct ieee80211_vif *vif, | |
580 | struct ieee80211_bss_conf *info, u32 changed) | |
581 | { | |
582 | struct brcms_info *wl = hw->priv; | |
b353dda4 | 583 | struct bcma_device *core = wl->wlc->hw->d11core; |
5b435de0 AS |
584 | |
585 | if (changed & BSS_CHANGED_ASSOC) { | |
586 | /* association status changed (associated/disassociated) | |
587 | * also implies a change in the AID. | |
588 | */ | |
b353dda4 | 589 | brcms_err(core, "%s: %s: %sassociated\n", KBUILD_MODNAME, |
5b435de0 AS |
590 | __func__, info->assoc ? "" : "dis"); |
591 | spin_lock_bh(&wl->lock); | |
592 | brcms_c_associate_upd(wl->wlc, info->assoc); | |
593 | spin_unlock_bh(&wl->lock); | |
594 | } | |
595 | if (changed & BSS_CHANGED_ERP_SLOT) { | |
596 | s8 val; | |
597 | ||
598 | /* slot timing changed */ | |
599 | if (info->use_short_slot) | |
600 | val = 1; | |
601 | else | |
602 | val = 0; | |
603 | spin_lock_bh(&wl->lock); | |
604 | brcms_c_set_shortslot_override(wl->wlc, val); | |
605 | spin_unlock_bh(&wl->lock); | |
606 | } | |
607 | ||
608 | if (changed & BSS_CHANGED_HT) { | |
609 | /* 802.11n parameters changed */ | |
610 | u16 mode = info->ht_operation_mode; | |
611 | ||
612 | spin_lock_bh(&wl->lock); | |
613 | brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_CFG, | |
614 | mode & IEEE80211_HT_OP_MODE_PROTECTION); | |
615 | brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_NONGF, | |
616 | mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); | |
617 | brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_OBSS, | |
618 | mode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT); | |
619 | spin_unlock_bh(&wl->lock); | |
620 | } | |
621 | if (changed & BSS_CHANGED_BASIC_RATES) { | |
622 | struct ieee80211_supported_band *bi; | |
623 | u32 br_mask, i; | |
624 | u16 rate; | |
625 | struct brcm_rateset rs; | |
626 | int error; | |
627 | ||
628 | /* retrieve the current rates */ | |
629 | spin_lock_bh(&wl->lock); | |
630 | brcms_c_get_current_rateset(wl->wlc, &rs); | |
631 | spin_unlock_bh(&wl->lock); | |
632 | ||
633 | br_mask = info->basic_rates; | |
634 | bi = hw->wiphy->bands[brcms_c_get_curband(wl->wlc)]; | |
635 | for (i = 0; i < bi->n_bitrates; i++) { | |
636 | /* convert to internal rate value */ | |
637 | rate = (bi->bitrates[i].bitrate << 1) / 10; | |
638 | ||
639 | /* set/clear basic rate flag */ | |
640 | brcms_set_basic_rate(&rs, rate, br_mask & 1); | |
641 | br_mask >>= 1; | |
642 | } | |
643 | ||
644 | /* update the rate set */ | |
645 | spin_lock_bh(&wl->lock); | |
646 | error = brcms_c_set_rateset(wl->wlc, &rs); | |
647 | spin_unlock_bh(&wl->lock); | |
648 | if (error) | |
b353dda4 | 649 | brcms_err(core, "changing basic rates failed: %d\n", |
5b435de0 AS |
650 | error); |
651 | } | |
652 | if (changed & BSS_CHANGED_BEACON_INT) { | |
653 | /* Beacon interval changed */ | |
654 | spin_lock_bh(&wl->lock); | |
655 | brcms_c_set_beacon_period(wl->wlc, info->beacon_int); | |
656 | spin_unlock_bh(&wl->lock); | |
657 | } | |
658 | if (changed & BSS_CHANGED_BSSID) { | |
659 | /* BSSID changed, for whatever reason (IBSS and managed mode) */ | |
660 | spin_lock_bh(&wl->lock); | |
661 | brcms_c_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET, info->bssid); | |
662 | spin_unlock_bh(&wl->lock); | |
663 | } | |
c031df31 HM |
664 | if (changed & BSS_CHANGED_SSID) { |
665 | /* BSSID changed, for whatever reason (IBSS and managed mode) */ | |
666 | spin_lock_bh(&wl->lock); | |
667 | brcms_c_set_ssid(wl->wlc, info->ssid, info->ssid_len); | |
668 | spin_unlock_bh(&wl->lock); | |
669 | } | |
af44e258 | 670 | if (changed & BSS_CHANGED_BEACON) { |
5b435de0 | 671 | /* Beacon data changed, retrieve new beacon (beaconing modes) */ |
af44e258 HM |
672 | struct sk_buff *beacon; |
673 | u16 tim_offset = 0; | |
674 | ||
675 | spin_lock_bh(&wl->lock); | |
676 | beacon = ieee80211_beacon_get_tim(hw, vif, &tim_offset, NULL); | |
677 | brcms_c_set_new_beacon(wl->wlc, beacon, tim_offset, | |
678 | info->dtim_period); | |
679 | spin_unlock_bh(&wl->lock); | |
680 | } | |
5b435de0 | 681 | |
5f1e59e5 HM |
682 | if (changed & BSS_CHANGED_AP_PROBE_RESP) { |
683 | struct sk_buff *probe_resp; | |
684 | ||
685 | spin_lock_bh(&wl->lock); | |
686 | probe_resp = ieee80211_proberesp_get(hw, vif); | |
687 | brcms_c_set_new_probe_resp(wl->wlc, probe_resp); | |
688 | spin_unlock_bh(&wl->lock); | |
689 | } | |
690 | ||
5b435de0 AS |
691 | if (changed & BSS_CHANGED_BEACON_ENABLED) { |
692 | /* Beaconing should be enabled/disabled (beaconing modes) */ | |
b353dda4 | 693 | brcms_err(core, "%s: Beacon enabled: %s\n", __func__, |
5b435de0 | 694 | info->enable_beacon ? "true" : "false"); |
04d2e422 HM |
695 | if (info->enable_beacon && |
696 | hw->wiphy->flags & WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD) { | |
697 | brcms_c_enable_probe_resp(wl->wlc, true); | |
698 | } else { | |
699 | brcms_c_enable_probe_resp(wl->wlc, false); | |
700 | } | |
5b435de0 AS |
701 | } |
702 | ||
703 | if (changed & BSS_CHANGED_CQM) { | |
704 | /* Connection quality monitor config changed */ | |
b353dda4 | 705 | brcms_err(core, "%s: cqm change: threshold %d, hys %d " |
5b435de0 AS |
706 | " (implement)\n", __func__, info->cqm_rssi_thold, |
707 | info->cqm_rssi_hyst); | |
708 | } | |
709 | ||
710 | if (changed & BSS_CHANGED_IBSS) { | |
711 | /* IBSS join status changed */ | |
b353dda4 SF |
712 | brcms_err(core, "%s: IBSS joined: %s (implement)\n", |
713 | __func__, info->ibss_joined ? "true" : "false"); | |
5b435de0 AS |
714 | } |
715 | ||
716 | if (changed & BSS_CHANGED_ARP_FILTER) { | |
717 | /* Hardware ARP filter address list or state changed */ | |
0f19b41e JB |
718 | brcms_err(core, "%s: arp filtering: %d addresses" |
719 | " (implement)\n", __func__, info->arp_addr_cnt); | |
5b435de0 AS |
720 | } |
721 | ||
722 | if (changed & BSS_CHANGED_QOS) { | |
723 | /* | |
724 | * QoS for this association was enabled/disabled. | |
725 | * Note that it is only ever disabled for station mode. | |
726 | */ | |
b353dda4 SF |
727 | brcms_err(core, "%s: qos enabled: %s (implement)\n", |
728 | __func__, info->qos ? "true" : "false"); | |
5b435de0 AS |
729 | } |
730 | return; | |
731 | } | |
732 | ||
733 | static void | |
734 | brcms_ops_configure_filter(struct ieee80211_hw *hw, | |
735 | unsigned int changed_flags, | |
736 | unsigned int *total_flags, u64 multicast) | |
737 | { | |
738 | struct brcms_info *wl = hw->priv; | |
b353dda4 | 739 | struct bcma_device *core = wl->wlc->hw->d11core; |
5b435de0 AS |
740 | |
741 | changed_flags &= MAC_FILTERS; | |
742 | *total_flags &= MAC_FILTERS; | |
be667669 | 743 | |
5b435de0 | 744 | if (changed_flags & FIF_PROMISC_IN_BSS) |
b353dda4 | 745 | brcms_dbg_info(core, "FIF_PROMISC_IN_BSS\n"); |
5b435de0 | 746 | if (changed_flags & FIF_ALLMULTI) |
b353dda4 | 747 | brcms_dbg_info(core, "FIF_ALLMULTI\n"); |
5b435de0 | 748 | if (changed_flags & FIF_FCSFAIL) |
ad667867 | 749 | brcms_dbg_info(core, "FIF_FCSFAIL\n"); |
5b435de0 | 750 | if (changed_flags & FIF_CONTROL) |
b353dda4 | 751 | brcms_dbg_info(core, "FIF_CONTROL\n"); |
5b435de0 | 752 | if (changed_flags & FIF_OTHER_BSS) |
b353dda4 | 753 | brcms_dbg_info(core, "FIF_OTHER_BSS\n"); |
be667669 | 754 | if (changed_flags & FIF_PSPOLL) |
b353dda4 | 755 | brcms_dbg_info(core, "FIF_PSPOLL\n"); |
be667669 | 756 | if (changed_flags & FIF_BCN_PRBRESP_PROMISC) |
b353dda4 | 757 | brcms_dbg_info(core, "FIF_BCN_PRBRESP_PROMISC\n"); |
be667669 AB |
758 | |
759 | spin_lock_bh(&wl->lock); | |
760 | brcms_c_mac_promisc(wl->wlc, *total_flags); | |
761 | spin_unlock_bh(&wl->lock); | |
5b435de0 AS |
762 | return; |
763 | } | |
764 | ||
765 | static void brcms_ops_sw_scan_start(struct ieee80211_hw *hw) | |
766 | { | |
767 | struct brcms_info *wl = hw->priv; | |
768 | spin_lock_bh(&wl->lock); | |
769 | brcms_c_scan_start(wl->wlc); | |
770 | spin_unlock_bh(&wl->lock); | |
771 | return; | |
772 | } | |
773 | ||
774 | static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw) | |
775 | { | |
776 | struct brcms_info *wl = hw->priv; | |
777 | spin_lock_bh(&wl->lock); | |
778 | brcms_c_scan_stop(wl->wlc); | |
779 | spin_unlock_bh(&wl->lock); | |
780 | return; | |
781 | } | |
782 | ||
783 | static int | |
784 | brcms_ops_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue, | |
785 | const struct ieee80211_tx_queue_params *params) | |
786 | { | |
787 | struct brcms_info *wl = hw->priv; | |
788 | ||
789 | spin_lock_bh(&wl->lock); | |
790 | brcms_c_wme_setparams(wl->wlc, queue, params, true); | |
791 | spin_unlock_bh(&wl->lock); | |
792 | ||
793 | return 0; | |
794 | } | |
795 | ||
796 | static int | |
797 | brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, | |
798 | struct ieee80211_sta *sta) | |
799 | { | |
800 | struct brcms_info *wl = hw->priv; | |
801 | struct scb *scb = &wl->wlc->pri_scb; | |
802 | ||
803 | brcms_c_init_scb(scb); | |
804 | ||
805 | wl->pub->global_ampdu = &(scb->scb_ampdu); | |
806 | wl->pub->global_ampdu->scb = scb; | |
807 | wl->pub->global_ampdu->max_pdu = 16; | |
808 | ||
5b435de0 AS |
809 | /* |
810 | * minstrel_ht initiates addBA on our behalf by calling | |
811 | * ieee80211_start_tx_ba_session() | |
812 | */ | |
813 | return 0; | |
814 | } | |
815 | ||
816 | static int | |
817 | brcms_ops_ampdu_action(struct ieee80211_hw *hw, | |
818 | struct ieee80211_vif *vif, | |
819 | enum ieee80211_ampdu_mlme_action action, | |
820 | struct ieee80211_sta *sta, u16 tid, u16 *ssn, | |
821 | u8 buf_size) | |
822 | { | |
823 | struct brcms_info *wl = hw->priv; | |
824 | struct scb *scb = &wl->wlc->pri_scb; | |
825 | int status; | |
826 | ||
827 | if (WARN_ON(scb->magic != SCB_MAGIC)) | |
828 | return -EIDRM; | |
829 | switch (action) { | |
830 | case IEEE80211_AMPDU_RX_START: | |
831 | break; | |
832 | case IEEE80211_AMPDU_RX_STOP: | |
833 | break; | |
834 | case IEEE80211_AMPDU_TX_START: | |
835 | spin_lock_bh(&wl->lock); | |
836 | status = brcms_c_aggregatable(wl->wlc, tid); | |
837 | spin_unlock_bh(&wl->lock); | |
838 | if (!status) { | |
b353dda4 SF |
839 | brcms_err(wl->wlc->hw->d11core, |
840 | "START: tid %d is not agg\'able\n", tid); | |
5b435de0 AS |
841 | return -EINVAL; |
842 | } | |
843 | ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); | |
844 | break; | |
845 | ||
18b559d5 JB |
846 | case IEEE80211_AMPDU_TX_STOP_CONT: |
847 | case IEEE80211_AMPDU_TX_STOP_FLUSH: | |
848 | case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: | |
5b435de0 AS |
849 | spin_lock_bh(&wl->lock); |
850 | brcms_c_ampdu_flush(wl->wlc, sta, tid); | |
851 | spin_unlock_bh(&wl->lock); | |
852 | ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); | |
853 | break; | |
854 | case IEEE80211_AMPDU_TX_OPERATIONAL: | |
855 | /* | |
856 | * BA window size from ADDBA response ('buf_size') defines how | |
857 | * many outstanding MPDUs are allowed for the BA stream by | |
858 | * recipient and traffic class. 'ampdu_factor' gives maximum | |
859 | * AMPDU size. | |
860 | */ | |
861 | spin_lock_bh(&wl->lock); | |
862 | brcms_c_ampdu_tx_operational(wl->wlc, tid, buf_size, | |
863 | (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR + | |
864 | sta->ht_cap.ampdu_factor)) - 1); | |
865 | spin_unlock_bh(&wl->lock); | |
866 | /* Power save wakeup */ | |
867 | break; | |
868 | default: | |
b353dda4 SF |
869 | brcms_err(wl->wlc->hw->d11core, |
870 | "%s: Invalid command, ignoring\n", __func__); | |
5b435de0 AS |
871 | } |
872 | ||
873 | return 0; | |
874 | } | |
875 | ||
876 | static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw) | |
877 | { | |
878 | struct brcms_info *wl = hw->priv; | |
879 | bool blocked; | |
880 | ||
881 | spin_lock_bh(&wl->lock); | |
882 | blocked = brcms_c_check_radio_disabled(wl->wlc); | |
883 | spin_unlock_bh(&wl->lock); | |
884 | ||
885 | wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked); | |
886 | } | |
887 | ||
7b2385b9 AS |
888 | static bool brcms_tx_flush_completed(struct brcms_info *wl) |
889 | { | |
890 | bool result; | |
891 | ||
892 | spin_lock_bh(&wl->lock); | |
893 | result = brcms_c_tx_flush_completed(wl->wlc); | |
894 | spin_unlock_bh(&wl->lock); | |
895 | return result; | |
896 | } | |
897 | ||
39ecc01d | 898 | static void brcms_ops_flush(struct ieee80211_hw *hw, u32 queues, bool drop) |
5b435de0 AS |
899 | { |
900 | struct brcms_info *wl = hw->priv; | |
7b2385b9 | 901 | int ret; |
5b435de0 AS |
902 | |
903 | no_printk("%s: drop = %s\n", __func__, drop ? "true" : "false"); | |
904 | ||
7b2385b9 AS |
905 | ret = wait_event_timeout(wl->tx_flush_wq, |
906 | brcms_tx_flush_completed(wl), | |
907 | msecs_to_jiffies(BRCMS_FLUSH_TIMEOUT)); | |
908 | ||
909 | brcms_dbg_mac80211(wl->wlc->hw->d11core, | |
910 | "ret=%d\n", jiffies_to_msecs(ret)); | |
5b435de0 AS |
911 | } |
912 | ||
39b2d36c HM |
913 | static u64 brcms_ops_get_tsf(struct ieee80211_hw *hw, struct ieee80211_vif *vif) |
914 | { | |
915 | struct brcms_info *wl = hw->priv; | |
916 | u64 tsf; | |
917 | ||
918 | spin_lock_bh(&wl->lock); | |
919 | tsf = brcms_c_tsf_get(wl->wlc); | |
920 | spin_unlock_bh(&wl->lock); | |
921 | ||
922 | return tsf; | |
923 | } | |
924 | ||
925 | static void brcms_ops_set_tsf(struct ieee80211_hw *hw, | |
926 | struct ieee80211_vif *vif, u64 tsf) | |
927 | { | |
928 | struct brcms_info *wl = hw->priv; | |
929 | ||
930 | spin_lock_bh(&wl->lock); | |
931 | brcms_c_tsf_set(wl->wlc, tsf); | |
932 | spin_unlock_bh(&wl->lock); | |
933 | } | |
934 | ||
5b435de0 AS |
935 | static const struct ieee80211_ops brcms_ops = { |
936 | .tx = brcms_ops_tx, | |
937 | .start = brcms_ops_start, | |
938 | .stop = brcms_ops_stop, | |
939 | .add_interface = brcms_ops_add_interface, | |
940 | .remove_interface = brcms_ops_remove_interface, | |
941 | .config = brcms_ops_config, | |
942 | .bss_info_changed = brcms_ops_bss_info_changed, | |
943 | .configure_filter = brcms_ops_configure_filter, | |
944 | .sw_scan_start = brcms_ops_sw_scan_start, | |
945 | .sw_scan_complete = brcms_ops_sw_scan_complete, | |
946 | .conf_tx = brcms_ops_conf_tx, | |
947 | .sta_add = brcms_ops_sta_add, | |
948 | .ampdu_action = brcms_ops_ampdu_action, | |
949 | .rfkill_poll = brcms_ops_rfkill_poll, | |
950 | .flush = brcms_ops_flush, | |
39b2d36c HM |
951 | .get_tsf = brcms_ops_get_tsf, |
952 | .set_tsf = brcms_ops_set_tsf, | |
5b435de0 AS |
953 | }; |
954 | ||
5b435de0 AS |
955 | void brcms_dpc(unsigned long data) |
956 | { | |
957 | struct brcms_info *wl; | |
958 | ||
959 | wl = (struct brcms_info *) data; | |
960 | ||
961 | spin_lock_bh(&wl->lock); | |
962 | ||
963 | /* call the common second level interrupt handler */ | |
964 | if (wl->pub->up) { | |
965 | if (wl->resched) { | |
966 | unsigned long flags; | |
967 | ||
968 | spin_lock_irqsave(&wl->isr_lock, flags); | |
969 | brcms_c_intrsupd(wl->wlc); | |
970 | spin_unlock_irqrestore(&wl->isr_lock, flags); | |
971 | } | |
972 | ||
973 | wl->resched = brcms_c_dpc(wl->wlc, true); | |
974 | } | |
975 | ||
976 | /* brcms_c_dpc() may bring the driver down */ | |
977 | if (!wl->pub->up) | |
978 | goto done; | |
979 | ||
980 | /* re-schedule dpc */ | |
981 | if (wl->resched) | |
982 | tasklet_schedule(&wl->tasklet); | |
983 | else | |
984 | /* re-enable interrupts */ | |
985 | brcms_intrson(wl); | |
986 | ||
987 | done: | |
988 | spin_unlock_bh(&wl->lock); | |
7b2385b9 | 989 | wake_up(&wl->tx_flush_wq); |
5b435de0 AS |
990 | } |
991 | ||
5b435de0 AS |
992 | static irqreturn_t brcms_isr(int irq, void *dev_id) |
993 | { | |
994 | struct brcms_info *wl; | |
94d9902d | 995 | irqreturn_t ret = IRQ_NONE; |
5b435de0 AS |
996 | |
997 | wl = (struct brcms_info *) dev_id; | |
998 | ||
999 | spin_lock(&wl->isr_lock); | |
1000 | ||
1001 | /* call common first level interrupt handler */ | |
94d9902d PH |
1002 | if (brcms_c_isr(wl->wlc)) { |
1003 | /* schedule second level handler */ | |
1004 | tasklet_schedule(&wl->tasklet); | |
1005 | ret = IRQ_HANDLED; | |
5b435de0 AS |
1006 | } |
1007 | ||
1008 | spin_unlock(&wl->isr_lock); | |
1009 | ||
94d9902d | 1010 | return ret; |
5b435de0 AS |
1011 | } |
1012 | ||
1013 | /* | |
1014 | * is called in brcms_pci_probe() context, therefore no locking required. | |
1015 | */ | |
1016 | static int ieee_hw_rate_init(struct ieee80211_hw *hw) | |
1017 | { | |
1018 | struct brcms_info *wl = hw->priv; | |
1019 | struct brcms_c_info *wlc = wl->wlc; | |
1020 | struct ieee80211_supported_band *band; | |
1021 | int has_5g = 0; | |
1022 | u16 phy_type; | |
1023 | ||
1024 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL; | |
1025 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL; | |
1026 | ||
1027 | phy_type = brcms_c_get_phy_type(wl->wlc, 0); | |
1028 | if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) { | |
1029 | band = &wlc->bandstate[BAND_2G_INDEX]->band; | |
1030 | *band = brcms_band_2GHz_nphy_template; | |
1031 | if (phy_type == PHY_TYPE_LCN) { | |
1032 | /* Single stream */ | |
1033 | band->ht_cap.mcs.rx_mask[1] = 0; | |
df4492f8 | 1034 | band->ht_cap.mcs.rx_highest = cpu_to_le16(72); |
5b435de0 AS |
1035 | } |
1036 | hw->wiphy->bands[IEEE80211_BAND_2GHZ] = band; | |
1037 | } else { | |
1038 | return -EPERM; | |
1039 | } | |
1040 | ||
1041 | /* Assume all bands use the same phy. True for 11n devices. */ | |
1042 | if (wl->pub->_nbands > 1) { | |
1043 | has_5g++; | |
1044 | if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) { | |
1045 | band = &wlc->bandstate[BAND_5G_INDEX]->band; | |
1046 | *band = brcms_band_5GHz_nphy_template; | |
1047 | hw->wiphy->bands[IEEE80211_BAND_5GHZ] = band; | |
1048 | } else { | |
1049 | return -EPERM; | |
1050 | } | |
1051 | } | |
1052 | return 0; | |
1053 | } | |
1054 | ||
1055 | /* | |
1056 | * is called in brcms_pci_probe() context, therefore no locking required. | |
1057 | */ | |
1058 | static int ieee_hw_init(struct ieee80211_hw *hw) | |
1059 | { | |
1060 | hw->flags = IEEE80211_HW_SIGNAL_DBM | |
1061 | /* | IEEE80211_HW_CONNECTION_MONITOR What is this? */ | |
1062 | | IEEE80211_HW_REPORTS_TX_ACK_STATUS | |
1063 | | IEEE80211_HW_AMPDU_AGGREGATION; | |
1064 | ||
1065 | hw->extra_tx_headroom = brcms_c_get_header_len(); | |
1066 | hw->queues = N_TX_QUEUES; | |
1067 | hw->max_rates = 2; /* Primary rate and 1 fallback rate */ | |
1068 | ||
1069 | /* channel change time is dependent on chip and band */ | |
1070 | hw->channel_change_time = 7 * 1000; | |
492b71e8 | 1071 | hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | |
c55b3766 HM |
1072 | BIT(NL80211_IFTYPE_AP) | |
1073 | BIT(NL80211_IFTYPE_ADHOC); | |
5b435de0 | 1074 | |
04d2e422 HM |
1075 | /* |
1076 | * deactivate sending probe responses by ucude, because this will | |
1077 | * cause problems when WPS is used. | |
1078 | * | |
1079 | * hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; | |
1080 | */ | |
5f1e59e5 | 1081 | |
5b435de0 AS |
1082 | hw->rate_control_algorithm = "minstrel_ht"; |
1083 | ||
1084 | hw->sta_data_size = 0; | |
1085 | return ieee_hw_rate_init(hw); | |
1086 | } | |
1087 | ||
1088 | /** | |
1089 | * attach to the WL device. | |
1090 | * | |
1091 | * Attach to the WL device identified by vendor and device parameters. | |
1092 | * regs is a host accessible memory address pointing to WL device registers. | |
1093 | * | |
1094 | * brcms_attach is not defined as static because in the case where no bus | |
1095 | * is defined, wl_attach will never be called, and thus, gcc will issue | |
1096 | * a warning that this function is defined but not used if we declare | |
1097 | * it as static. | |
1098 | * | |
1099 | * | |
2e756560 | 1100 | * is called in brcms_bcma_probe() context, therefore no locking required. |
5b435de0 | 1101 | */ |
2e756560 | 1102 | static struct brcms_info *brcms_attach(struct bcma_device *pdev) |
5b435de0 AS |
1103 | { |
1104 | struct brcms_info *wl = NULL; | |
1105 | int unit, err; | |
1106 | struct ieee80211_hw *hw; | |
1107 | u8 perm[ETH_ALEN]; | |
1108 | ||
1109 | unit = n_adapters_found; | |
1110 | err = 0; | |
1111 | ||
1112 | if (unit < 0) | |
1113 | return NULL; | |
1114 | ||
1115 | /* allocate private info */ | |
2e756560 | 1116 | hw = bcma_get_drvdata(pdev); |
5b435de0 AS |
1117 | if (hw != NULL) |
1118 | wl = hw->priv; | |
1119 | if (WARN_ON(hw == NULL) || WARN_ON(wl == NULL)) | |
1120 | return NULL; | |
1121 | wl->wiphy = hw->wiphy; | |
1122 | ||
1123 | atomic_set(&wl->callbacks, 0); | |
1124 | ||
7b2385b9 AS |
1125 | init_waitqueue_head(&wl->tx_flush_wq); |
1126 | ||
5b435de0 AS |
1127 | /* setup the bottom half handler */ |
1128 | tasklet_init(&wl->tasklet, brcms_dpc, (unsigned long) wl); | |
1129 | ||
5b435de0 AS |
1130 | spin_lock_init(&wl->lock); |
1131 | spin_lock_init(&wl->isr_lock); | |
1132 | ||
5b435de0 | 1133 | /* common load-time initialization */ |
b63337a0 | 1134 | wl->wlc = brcms_c_attach((void *)wl, pdev, unit, false, &err); |
5b435de0 AS |
1135 | if (!wl->wlc) { |
1136 | wiphy_err(wl->wiphy, "%s: attach() failed with code %d\n", | |
1137 | KBUILD_MODNAME, err); | |
1138 | goto fail; | |
1139 | } | |
1140 | wl->pub = brcms_c_pub(wl->wlc); | |
1141 | ||
1142 | wl->pub->ieee_hw = hw; | |
1143 | ||
5b435de0 | 1144 | /* register our interrupt handler */ |
00bcda40 | 1145 | if (request_irq(pdev->irq, brcms_isr, |
2e756560 | 1146 | IRQF_SHARED, KBUILD_MODNAME, wl)) { |
5b435de0 AS |
1147 | wiphy_err(wl->wiphy, "wl%d: request_irq() failed\n", unit); |
1148 | goto fail; | |
1149 | } | |
00bcda40 | 1150 | wl->irq = pdev->irq; |
5b435de0 AS |
1151 | |
1152 | /* register module */ | |
1153 | brcms_c_module_register(wl->pub, "linux", wl, NULL); | |
1154 | ||
1155 | if (ieee_hw_init(hw)) { | |
1156 | wiphy_err(wl->wiphy, "wl%d: %s: ieee_hw_init failed!\n", unit, | |
1157 | __func__); | |
1158 | goto fail; | |
1159 | } | |
1160 | ||
cf03c5da SF |
1161 | brcms_c_regd_init(wl->wlc); |
1162 | ||
5b435de0 AS |
1163 | memcpy(perm, &wl->pub->cur_etheraddr, ETH_ALEN); |
1164 | if (WARN_ON(!is_valid_ether_addr(perm))) | |
1165 | goto fail; | |
1166 | SET_IEEE80211_PERM_ADDR(hw, perm); | |
1167 | ||
1168 | err = ieee80211_register_hw(hw); | |
1169 | if (err) | |
1170 | wiphy_err(wl->wiphy, "%s: ieee80211_register_hw failed, status" | |
1171 | "%d\n", __func__, err); | |
1172 | ||
d597ee7e AS |
1173 | if (wl->pub->srom_ccode[0] && |
1174 | regulatory_hint(wl->wiphy, wl->pub->srom_ccode)) | |
1175 | wiphy_err(wl->wiphy, "%s: regulatory hint failed\n", __func__); | |
5b435de0 | 1176 | |
8e21df23 PH |
1177 | brcms_debugfs_attach(wl->pub); |
1178 | brcms_debugfs_create_files(wl->pub); | |
5b435de0 AS |
1179 | n_adapters_found++; |
1180 | return wl; | |
1181 | ||
1182 | fail: | |
1183 | brcms_free(wl); | |
1184 | return NULL; | |
1185 | } | |
1186 | ||
1187 | ||
1188 | ||
1189 | /** | |
1190 | * determines if a device is a WL device, and if so, attaches it. | |
1191 | * | |
1192 | * This function determines if a device pointed to by pdev is a WL device, | |
1193 | * and if so, performs a brcms_attach() on it. | |
1194 | * | |
1195 | * Perimeter lock is initialized in the course of this function. | |
1196 | */ | |
fcff0c08 | 1197 | static int brcms_bcma_probe(struct bcma_device *pdev) |
5b435de0 | 1198 | { |
5b435de0 AS |
1199 | struct brcms_info *wl; |
1200 | struct ieee80211_hw *hw; | |
5b435de0 | 1201 | |
2e756560 AS |
1202 | dev_info(&pdev->dev, "mfg %x core %x rev %d class %d irq %d\n", |
1203 | pdev->id.manuf, pdev->id.id, pdev->id.rev, pdev->id.class, | |
00bcda40 | 1204 | pdev->irq); |
5b435de0 | 1205 | |
2e756560 AS |
1206 | if ((pdev->id.manuf != BCMA_MANUF_BCM) || |
1207 | (pdev->id.id != BCMA_CORE_80211)) | |
5b435de0 | 1208 | return -ENODEV; |
5b435de0 AS |
1209 | |
1210 | hw = ieee80211_alloc_hw(sizeof(struct brcms_info), &brcms_ops); | |
1211 | if (!hw) { | |
1212 | pr_err("%s: ieee80211_alloc_hw failed\n", __func__); | |
1213 | return -ENOMEM; | |
1214 | } | |
1215 | ||
1216 | SET_IEEE80211_DEV(hw, &pdev->dev); | |
1217 | ||
2e756560 | 1218 | bcma_set_drvdata(pdev, hw); |
5b435de0 AS |
1219 | |
1220 | memset(hw->priv, 0, sizeof(*wl)); | |
1221 | ||
2e756560 | 1222 | wl = brcms_attach(pdev); |
5b435de0 | 1223 | if (!wl) { |
02f77195 | 1224 | pr_err("%s: brcms_attach failed!\n", __func__); |
5b435de0 AS |
1225 | return -ENODEV; |
1226 | } | |
cd864522 PH |
1227 | brcms_led_register(wl); |
1228 | ||
5b435de0 AS |
1229 | return 0; |
1230 | } | |
1231 | ||
7d5869e7 | 1232 | static int brcms_suspend(struct bcma_device *pdev) |
5b435de0 AS |
1233 | { |
1234 | struct brcms_info *wl; | |
1235 | struct ieee80211_hw *hw; | |
1236 | ||
2e756560 | 1237 | hw = bcma_get_drvdata(pdev); |
5b435de0 AS |
1238 | wl = hw->priv; |
1239 | if (!wl) { | |
137dabed AS |
1240 | pr_err("%s: %s: no driver private struct!\n", KBUILD_MODNAME, |
1241 | __func__); | |
5b435de0 AS |
1242 | return -ENODEV; |
1243 | } | |
1244 | ||
1245 | /* only need to flag hw is down for proper resume */ | |
1246 | spin_lock_bh(&wl->lock); | |
1247 | wl->pub->hw_up = false; | |
1248 | spin_unlock_bh(&wl->lock); | |
1249 | ||
b353dda4 | 1250 | brcms_dbg_info(wl->wlc->hw->d11core, "brcms_suspend ok\n"); |
5b435de0 | 1251 | |
2e756560 AS |
1252 | return 0; |
1253 | } | |
1254 | ||
1255 | static int brcms_resume(struct bcma_device *pdev) | |
1256 | { | |
7e9e7fa4 | 1257 | return 0; |
5b435de0 AS |
1258 | } |
1259 | ||
2e756560 | 1260 | static struct bcma_driver brcms_bcma_driver = { |
5b435de0 | 1261 | .name = KBUILD_MODNAME, |
2e756560 | 1262 | .probe = brcms_bcma_probe, |
5b435de0 AS |
1263 | .suspend = brcms_suspend, |
1264 | .resume = brcms_resume, | |
fcff0c08 | 1265 | .remove = brcms_remove, |
2e756560 | 1266 | .id_table = brcms_coreid_table, |
5b435de0 AS |
1267 | }; |
1268 | ||
1269 | /** | |
2e756560 | 1270 | * This is the main entry point for the brcmsmac driver. |
5b435de0 | 1271 | * |
b0c359b2 AS |
1272 | * This function is scheduled upon module initialization and |
1273 | * does the driver registration, which result in brcms_bcma_probe() | |
1274 | * call resulting in the driver bringup. | |
5b435de0 | 1275 | */ |
b0c359b2 | 1276 | static void brcms_driver_init(struct work_struct *work) |
5b435de0 | 1277 | { |
b0c359b2 AS |
1278 | int error; |
1279 | ||
1280 | error = bcma_driver_register(&brcms_bcma_driver); | |
1281 | if (error) | |
1282 | pr_err("%s: register returned %d\n", __func__, error); | |
1283 | } | |
1284 | ||
1285 | static DECLARE_WORK(brcms_driver_work, brcms_driver_init); | |
5b435de0 | 1286 | |
b0c359b2 AS |
1287 | static int __init brcms_module_init(void) |
1288 | { | |
8e21df23 | 1289 | brcms_debugfs_init(); |
b0c359b2 AS |
1290 | if (!schedule_work(&brcms_driver_work)) |
1291 | return -EBUSY; | |
5b435de0 | 1292 | |
b0c359b2 | 1293 | return 0; |
5b435de0 AS |
1294 | } |
1295 | ||
1296 | /** | |
2e756560 | 1297 | * This function unloads the brcmsmac driver from the system. |
5b435de0 | 1298 | * |
2e756560 | 1299 | * This function unconditionally unloads the brcmsmac driver module from the |
5b435de0 AS |
1300 | * system. |
1301 | * | |
1302 | */ | |
1303 | static void __exit brcms_module_exit(void) | |
1304 | { | |
b0c359b2 | 1305 | cancel_work_sync(&brcms_driver_work); |
2e756560 | 1306 | bcma_driver_unregister(&brcms_bcma_driver); |
8e21df23 | 1307 | brcms_debugfs_exit(); |
5b435de0 AS |
1308 | } |
1309 | ||
1310 | module_init(brcms_module_init); | |
1311 | module_exit(brcms_module_exit); | |
1312 | ||
1313 | /* | |
1314 | * precondition: perimeter lock has been acquired | |
1315 | */ | |
1316 | void brcms_txflowcontrol(struct brcms_info *wl, struct brcms_if *wlif, | |
1317 | bool state, int prio) | |
1318 | { | |
b353dda4 | 1319 | brcms_err(wl->wlc->hw->d11core, "Shouldn't be here %s\n", __func__); |
5b435de0 AS |
1320 | } |
1321 | ||
1322 | /* | |
1323 | * precondition: perimeter lock has been acquired | |
1324 | */ | |
1325 | void brcms_init(struct brcms_info *wl) | |
1326 | { | |
b353dda4 SF |
1327 | brcms_dbg_info(wl->wlc->hw->d11core, "Initializing wl%d\n", |
1328 | wl->pub->unit); | |
5b435de0 | 1329 | brcms_reset(wl); |
dc460127 | 1330 | brcms_c_init(wl->wlc, wl->mute_tx); |
5b435de0 AS |
1331 | } |
1332 | ||
1333 | /* | |
1334 | * precondition: perimeter lock has been acquired | |
1335 | */ | |
1336 | uint brcms_reset(struct brcms_info *wl) | |
1337 | { | |
b353dda4 | 1338 | brcms_dbg_info(wl->wlc->hw->d11core, "Resetting wl%d\n", wl->pub->unit); |
5b435de0 AS |
1339 | brcms_c_reset(wl->wlc); |
1340 | ||
1341 | /* dpc will not be rescheduled */ | |
3db1cd5c | 1342 | wl->resched = false; |
5b435de0 | 1343 | |
ea2d2183 VZ |
1344 | /* inform publicly that interface is down */ |
1345 | wl->pub->up = false; | |
1346 | ||
5b435de0 AS |
1347 | return 0; |
1348 | } | |
1349 | ||
c261bdf8 RV |
1350 | void brcms_fatal_error(struct brcms_info *wl) |
1351 | { | |
b353dda4 | 1352 | brcms_err(wl->wlc->hw->d11core, "wl%d: fatal error, reinitializing\n", |
c261bdf8 RV |
1353 | wl->wlc->pub->unit); |
1354 | brcms_reset(wl); | |
1355 | ieee80211_restart_hw(wl->pub->ieee_hw); | |
1356 | } | |
1357 | ||
5b435de0 AS |
1358 | /* |
1359 | * These are interrupt on/off entry points. Disable interrupts | |
1360 | * during interrupt state transition. | |
1361 | */ | |
1362 | void brcms_intrson(struct brcms_info *wl) | |
1363 | { | |
1364 | unsigned long flags; | |
1365 | ||
1366 | spin_lock_irqsave(&wl->isr_lock, flags); | |
1367 | brcms_c_intrson(wl->wlc); | |
1368 | spin_unlock_irqrestore(&wl->isr_lock, flags); | |
1369 | } | |
1370 | ||
1371 | u32 brcms_intrsoff(struct brcms_info *wl) | |
1372 | { | |
1373 | unsigned long flags; | |
1374 | u32 status; | |
1375 | ||
1376 | spin_lock_irqsave(&wl->isr_lock, flags); | |
1377 | status = brcms_c_intrsoff(wl->wlc); | |
1378 | spin_unlock_irqrestore(&wl->isr_lock, flags); | |
1379 | return status; | |
1380 | } | |
1381 | ||
1382 | void brcms_intrsrestore(struct brcms_info *wl, u32 macintmask) | |
1383 | { | |
1384 | unsigned long flags; | |
1385 | ||
1386 | spin_lock_irqsave(&wl->isr_lock, flags); | |
1387 | brcms_c_intrsrestore(wl->wlc, macintmask); | |
1388 | spin_unlock_irqrestore(&wl->isr_lock, flags); | |
1389 | } | |
1390 | ||
1391 | /* | |
1392 | * precondition: perimeter lock has been acquired | |
1393 | */ | |
1394 | int brcms_up(struct brcms_info *wl) | |
1395 | { | |
1396 | int error = 0; | |
1397 | ||
1398 | if (wl->pub->up) | |
1399 | return 0; | |
1400 | ||
1401 | error = brcms_c_up(wl->wlc); | |
1402 | ||
1403 | return error; | |
1404 | } | |
1405 | ||
1406 | /* | |
1407 | * precondition: perimeter lock has been acquired | |
1408 | */ | |
1409 | void brcms_down(struct brcms_info *wl) | |
1410 | { | |
1411 | uint callbacks, ret_val = 0; | |
1412 | ||
1413 | /* call common down function */ | |
1414 | ret_val = brcms_c_down(wl->wlc); | |
1415 | callbacks = atomic_read(&wl->callbacks) - ret_val; | |
1416 | ||
1417 | /* wait for down callbacks to complete */ | |
1418 | spin_unlock_bh(&wl->lock); | |
1419 | ||
1420 | /* For HIGH_only driver, it's important to actually schedule other work, | |
1421 | * not just spin wait since everything runs at schedule level | |
1422 | */ | |
1423 | SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000); | |
1424 | ||
1425 | spin_lock_bh(&wl->lock); | |
1426 | } | |
1427 | ||
1428 | /* | |
1429 | * precondition: perimeter lock is not acquired | |
1430 | */ | |
2a7fc5b1 | 1431 | static void _brcms_timer(struct work_struct *work) |
5b435de0 | 1432 | { |
2a7fc5b1 RV |
1433 | struct brcms_timer *t = container_of(work, struct brcms_timer, |
1434 | dly_wrk.work); | |
1435 | ||
5b435de0 AS |
1436 | spin_lock_bh(&t->wl->lock); |
1437 | ||
1438 | if (t->set) { | |
1439 | if (t->periodic) { | |
5b435de0 | 1440 | atomic_inc(&t->wl->callbacks); |
2a7fc5b1 RV |
1441 | ieee80211_queue_delayed_work(t->wl->pub->ieee_hw, |
1442 | &t->dly_wrk, | |
1443 | msecs_to_jiffies(t->ms)); | |
1444 | } else { | |
5b435de0 | 1445 | t->set = false; |
2a7fc5b1 | 1446 | } |
5b435de0 AS |
1447 | |
1448 | t->fn(t->arg); | |
1449 | } | |
1450 | ||
1451 | atomic_dec(&t->wl->callbacks); | |
1452 | ||
1453 | spin_unlock_bh(&t->wl->lock); | |
1454 | } | |
1455 | ||
5b435de0 AS |
1456 | /* |
1457 | * Adds a timer to the list. Caller supplies a timer function. | |
1458 | * Is called from wlc. | |
1459 | * | |
1460 | * precondition: perimeter lock has been acquired | |
1461 | */ | |
1462 | struct brcms_timer *brcms_init_timer(struct brcms_info *wl, | |
1463 | void (*fn) (void *arg), | |
1464 | void *arg, const char *name) | |
1465 | { | |
1466 | struct brcms_timer *t; | |
1467 | ||
1468 | t = kzalloc(sizeof(struct brcms_timer), GFP_ATOMIC); | |
1469 | if (!t) | |
1470 | return NULL; | |
1471 | ||
2a7fc5b1 | 1472 | INIT_DELAYED_WORK(&t->dly_wrk, _brcms_timer); |
5b435de0 AS |
1473 | t->wl = wl; |
1474 | t->fn = fn; | |
1475 | t->arg = arg; | |
1476 | t->next = wl->timers; | |
1477 | wl->timers = t; | |
1478 | ||
8ae74654 | 1479 | #ifdef DEBUG |
5b435de0 AS |
1480 | t->name = kmalloc(strlen(name) + 1, GFP_ATOMIC); |
1481 | if (t->name) | |
1482 | strcpy(t->name, name); | |
1483 | #endif | |
1484 | ||
1485 | return t; | |
1486 | } | |
1487 | ||
1488 | /* | |
1489 | * adds only the kernel timer since it's going to be more accurate | |
1490 | * as well as it's easier to make it periodic | |
1491 | * | |
1492 | * precondition: perimeter lock has been acquired | |
1493 | */ | |
2a7fc5b1 | 1494 | void brcms_add_timer(struct brcms_timer *t, uint ms, int periodic) |
5b435de0 | 1495 | { |
2a7fc5b1 RV |
1496 | struct ieee80211_hw *hw = t->wl->pub->ieee_hw; |
1497 | ||
8ae74654 | 1498 | #ifdef DEBUG |
5b435de0 | 1499 | if (t->set) |
b353dda4 SF |
1500 | brcms_dbg_info(t->wl->wlc->hw->d11core, |
1501 | "%s: Already set. Name: %s, per %d\n", | |
1502 | __func__, t->name, periodic); | |
5b435de0 AS |
1503 | #endif |
1504 | t->ms = ms; | |
1505 | t->periodic = (bool) periodic; | |
01486c5a PH |
1506 | if (!t->set) { |
1507 | t->set = true; | |
1508 | atomic_inc(&t->wl->callbacks); | |
1509 | } | |
2a7fc5b1 RV |
1510 | |
1511 | ieee80211_queue_delayed_work(hw, &t->dly_wrk, msecs_to_jiffies(ms)); | |
5b435de0 AS |
1512 | } |
1513 | ||
1514 | /* | |
1515 | * return true if timer successfully deleted, false if still pending | |
1516 | * | |
1517 | * precondition: perimeter lock has been acquired | |
1518 | */ | |
be69c4ef | 1519 | bool brcms_del_timer(struct brcms_timer *t) |
5b435de0 AS |
1520 | { |
1521 | if (t->set) { | |
1522 | t->set = false; | |
2a7fc5b1 | 1523 | if (!cancel_delayed_work(&t->dly_wrk)) |
5b435de0 AS |
1524 | return false; |
1525 | ||
be69c4ef | 1526 | atomic_dec(&t->wl->callbacks); |
5b435de0 AS |
1527 | } |
1528 | ||
1529 | return true; | |
1530 | } | |
1531 | ||
1532 | /* | |
1533 | * precondition: perimeter lock has been acquired | |
1534 | */ | |
be69c4ef | 1535 | void brcms_free_timer(struct brcms_timer *t) |
5b435de0 | 1536 | { |
be69c4ef | 1537 | struct brcms_info *wl = t->wl; |
5b435de0 AS |
1538 | struct brcms_timer *tmp; |
1539 | ||
1540 | /* delete the timer in case it is active */ | |
be69c4ef | 1541 | brcms_del_timer(t); |
5b435de0 AS |
1542 | |
1543 | if (wl->timers == t) { | |
1544 | wl->timers = wl->timers->next; | |
8ae74654 | 1545 | #ifdef DEBUG |
5b435de0 AS |
1546 | kfree(t->name); |
1547 | #endif | |
1548 | kfree(t); | |
1549 | return; | |
1550 | ||
1551 | } | |
1552 | ||
1553 | tmp = wl->timers; | |
1554 | while (tmp) { | |
1555 | if (tmp->next == t) { | |
1556 | tmp->next = t->next; | |
8ae74654 | 1557 | #ifdef DEBUG |
5b435de0 AS |
1558 | kfree(t->name); |
1559 | #endif | |
1560 | kfree(t); | |
1561 | return; | |
1562 | } | |
1563 | tmp = tmp->next; | |
1564 | } | |
1565 | ||
1566 | } | |
1567 | ||
1568 | /* | |
1569 | * precondition: perimeter lock has been acquired | |
1570 | */ | |
1571 | int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, u32 idx) | |
1572 | { | |
1573 | int i, entry; | |
1574 | const u8 *pdata; | |
1575 | struct firmware_hdr *hdr; | |
1576 | for (i = 0; i < wl->fw.fw_cnt; i++) { | |
1577 | hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data; | |
1578 | for (entry = 0; entry < wl->fw.hdr_num_entries[i]; | |
1579 | entry++, hdr++) { | |
1580 | u32 len = le32_to_cpu(hdr->len); | |
1581 | if (le32_to_cpu(hdr->idx) == idx) { | |
1582 | pdata = wl->fw.fw_bin[i]->data + | |
1583 | le32_to_cpu(hdr->offset); | |
1f1d5289 | 1584 | *pbuf = kmemdup(pdata, len, GFP_ATOMIC); |
5b435de0 AS |
1585 | if (*pbuf == NULL) |
1586 | goto fail; | |
1587 | ||
5b435de0 AS |
1588 | return 0; |
1589 | } | |
1590 | } | |
1591 | } | |
b353dda4 SF |
1592 | brcms_err(wl->wlc->hw->d11core, |
1593 | "ERROR: ucode buf tag:%d can not be found!\n", idx); | |
5b435de0 AS |
1594 | *pbuf = NULL; |
1595 | fail: | |
1596 | return -ENODATA; | |
1597 | } | |
1598 | ||
1599 | /* | |
2e756560 | 1600 | * Precondition: Since this function is called in brcms_bcma_probe() context, |
5b435de0 AS |
1601 | * no locking is required. |
1602 | */ | |
1603 | int brcms_ucode_init_uint(struct brcms_info *wl, size_t *n_bytes, u32 idx) | |
1604 | { | |
1605 | int i, entry; | |
1606 | const u8 *pdata; | |
1607 | struct firmware_hdr *hdr; | |
1608 | for (i = 0; i < wl->fw.fw_cnt; i++) { | |
1609 | hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data; | |
1610 | for (entry = 0; entry < wl->fw.hdr_num_entries[i]; | |
1611 | entry++, hdr++) { | |
1612 | if (le32_to_cpu(hdr->idx) == idx) { | |
1613 | pdata = wl->fw.fw_bin[i]->data + | |
1614 | le32_to_cpu(hdr->offset); | |
1615 | if (le32_to_cpu(hdr->len) != 4) { | |
b353dda4 | 1616 | brcms_err(wl->wlc->hw->d11core, |
5b435de0 AS |
1617 | "ERROR: fw hdr len\n"); |
1618 | return -ENOMSG; | |
1619 | } | |
1620 | *n_bytes = le32_to_cpu(*((__le32 *) pdata)); | |
1621 | return 0; | |
1622 | } | |
1623 | } | |
1624 | } | |
b353dda4 SF |
1625 | brcms_err(wl->wlc->hw->d11core, |
1626 | "ERROR: ucode tag:%d can not be found!\n", idx); | |
5b435de0 AS |
1627 | return -ENOMSG; |
1628 | } | |
1629 | ||
1630 | /* | |
1631 | * precondition: can both be called locked and unlocked | |
1632 | */ | |
1633 | void brcms_ucode_free_buf(void *p) | |
1634 | { | |
1635 | kfree(p); | |
1636 | } | |
1637 | ||
1638 | /* | |
1639 | * checks validity of all firmware images loaded from user space | |
1640 | * | |
2e756560 | 1641 | * Precondition: Since this function is called in brcms_bcma_probe() context, |
5b435de0 AS |
1642 | * no locking is required. |
1643 | */ | |
1644 | int brcms_check_firmwares(struct brcms_info *wl) | |
1645 | { | |
1646 | int i; | |
1647 | int entry; | |
1648 | int rc = 0; | |
1649 | const struct firmware *fw; | |
1650 | const struct firmware *fw_hdr; | |
1651 | struct firmware_hdr *ucode_hdr; | |
1652 | for (i = 0; i < MAX_FW_IMAGES && rc == 0; i++) { | |
1653 | fw = wl->fw.fw_bin[i]; | |
1654 | fw_hdr = wl->fw.fw_hdr[i]; | |
1655 | if (fw == NULL && fw_hdr == NULL) { | |
1656 | break; | |
1657 | } else if (fw == NULL || fw_hdr == NULL) { | |
1658 | wiphy_err(wl->wiphy, "%s: invalid bin/hdr fw\n", | |
1659 | __func__); | |
1660 | rc = -EBADF; | |
1661 | } else if (fw_hdr->size % sizeof(struct firmware_hdr)) { | |
1662 | wiphy_err(wl->wiphy, "%s: non integral fw hdr file " | |
1663 | "size %zu/%zu\n", __func__, fw_hdr->size, | |
1664 | sizeof(struct firmware_hdr)); | |
1665 | rc = -EBADF; | |
1666 | } else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) { | |
b353dda4 SF |
1667 | wiphy_err(wl->wiphy, "%s: out of bounds fw file size %zu\n", |
1668 | __func__, fw->size); | |
5b435de0 AS |
1669 | rc = -EBADF; |
1670 | } else { | |
1671 | /* check if ucode section overruns firmware image */ | |
1672 | ucode_hdr = (struct firmware_hdr *)fw_hdr->data; | |
1673 | for (entry = 0; entry < wl->fw.hdr_num_entries[i] && | |
1674 | !rc; entry++, ucode_hdr++) { | |
1675 | if (le32_to_cpu(ucode_hdr->offset) + | |
1676 | le32_to_cpu(ucode_hdr->len) > | |
1677 | fw->size) { | |
1678 | wiphy_err(wl->wiphy, | |
1679 | "%s: conflicting bin/hdr\n", | |
1680 | __func__); | |
1681 | rc = -EBADF; | |
1682 | } | |
1683 | } | |
1684 | } | |
1685 | } | |
1686 | if (rc == 0 && wl->fw.fw_cnt != i) { | |
1687 | wiphy_err(wl->wiphy, "%s: invalid fw_cnt=%d\n", __func__, | |
1688 | wl->fw.fw_cnt); | |
1689 | rc = -EBADF; | |
1690 | } | |
1691 | return rc; | |
1692 | } | |
1693 | ||
1694 | /* | |
1695 | * precondition: perimeter lock has been acquired | |
1696 | */ | |
1697 | bool brcms_rfkill_set_hw_state(struct brcms_info *wl) | |
1698 | { | |
1699 | bool blocked = brcms_c_check_radio_disabled(wl->wlc); | |
1700 | ||
1701 | spin_unlock_bh(&wl->lock); | |
1702 | wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked); | |
1703 | if (blocked) | |
1704 | wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy); | |
1705 | spin_lock_bh(&wl->lock); | |
1706 | return blocked; | |
1707 | } |