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Merge branch 'acpi-lpss'
[deliverable/linux.git] / drivers / net / wireless / brcm80211 / brcmsmac / mac80211_if.c
CommitLineData
5b435de0
AS		 1/*
2 * Copyright (c) 2010 Broadcom Corporation
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#define __UNDEF_NO_VERSION__
02f77195 18#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
5b435de0
AS		 19
20#include <linux/etherdevice.h>
5b435de0
AS		 21#include <linux/sched.h>
22#include <linux/firmware.h>
23#include <linux/interrupt.h>
45296236 24#include <linux/module.h>
2e756560 25#include <linux/bcma/bcma.h>
5b435de0
AS		 26#include <net/mac80211.h>
27#include <defs.h>
5b435de0
AS		 28#include "phy/phy_int.h"
29#include "d11.h"
30#include "channel.h"
31#include "scb.h"
32#include "pub.h"
33#include "ucode_loader.h"
34#include "mac80211_if.h"
35#include "main.h"
b353dda4 36#include "debug.h"
5b435de0
AS		 37
38#define N_TX_QUEUES 4 /* #tx queues on mac80211<->driver interface */
7b2385b9 39#define BRCMS_FLUSH_TIMEOUT 500 /* msec */
5b435de0
AS		 40
41/* Flags we support */
42#define MAC_FILTERS (FIF_PROMISC_IN_BSS | \
43 FIF_ALLMULTI | \
44 FIF_FCSFAIL | \
5b435de0
AS		 45 FIF_CONTROL | \
46 FIF_OTHER_BSS | \
be667669
AB		 47 FIF_BCN_PRBRESP_PROMISC | \
48 FIF_PSPOLL)
5b435de0
AS		 49
50#define CHAN2GHZ(channel, freqency, chflags) { \
51 .band = IEEE80211_BAND_2GHZ, \
52 .center_freq = (freqency), \
53 .hw_value = (channel), \
54 .flags = chflags, \
55 .max_antenna_gain = 0, \
56 .max_power = 19, \
57}
58
59#define CHAN5GHZ(channel, chflags) { \
60 .band = IEEE80211_BAND_5GHZ, \
61 .center_freq = 5000 + 5*(channel), \
62 .hw_value = (channel), \
63 .flags = chflags, \
64 .max_antenna_gain = 0, \
65 .max_power = 21, \
66}
67
68#define RATE(rate100m, _flags) { \
69 .bitrate = (rate100m), \
70 .flags = (_flags), \
71 .hw_value = (rate100m / 5), \
72}
73
74struct firmware_hdr {
75 __le32 offset;
76 __le32 len;
77 __le32 idx;
78};
79
80static const char * const brcms_firmwares[MAX_FW_IMAGES] = {
81 "brcm/bcm43xx",
82 NULL
83};
84
85static int n_adapters_found;
86
87MODULE_AUTHOR("Broadcom Corporation");
88MODULE_DESCRIPTION("Broadcom 802.11n wireless LAN driver.");
89MODULE_SUPPORTED_DEVICE("Broadcom 802.11n WLAN cards");
90MODULE_LICENSE("Dual BSD/GPL");
faa97bd4
JM		 91/* This needs to be adjusted when brcms_firmwares changes */
92MODULE_FIRMWARE("brcm/bcm43xx-0.fw");
93MODULE_FIRMWARE("brcm/bcm43xx_hdr-0.fw");
5b435de0 94
2e756560
AS		 95/* recognized BCMA Core IDs */
96static struct bcma_device_id brcms_coreid_table[] = {
6f80f014 97 BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 17, BCMA_ANY_CLASS),
eb032f03
AS		 98 BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 23, BCMA_ANY_CLASS),
99 BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_80211, 24, BCMA_ANY_CLASS),
2e756560
AS		 100 BCMA_CORETABLE_END
101};
102MODULE_DEVICE_TABLE(bcma, brcms_coreid_table);
5b435de0 103
b0341744
SF		 104#if defined(CONFIG_BRCMDBG)
105/*
106 * Module parameter for setting the debug message level. Available
107 * flags are specified by the BRCM_DL_* macros in
108 * drivers/net/wireless/brcm80211/include/defs.h.
109 */
110module_param_named(debug, brcm_msg_level, uint, S_IRUGO | S_IWUSR);
111#endif
5b435de0
AS		 112
113static struct ieee80211_channel brcms_2ghz_chantable[] = {
114 CHAN2GHZ(1, 2412, IEEE80211_CHAN_NO_HT40MINUS),
115 CHAN2GHZ(2, 2417, IEEE80211_CHAN_NO_HT40MINUS),
116 CHAN2GHZ(3, 2422, IEEE80211_CHAN_NO_HT40MINUS),
117 CHAN2GHZ(4, 2427, IEEE80211_CHAN_NO_HT40MINUS),
118 CHAN2GHZ(5, 2432, 0),
119 CHAN2GHZ(6, 2437, 0),
120 CHAN2GHZ(7, 2442, 0),
121 CHAN2GHZ(8, 2447, IEEE80211_CHAN_NO_HT40PLUS),
122 CHAN2GHZ(9, 2452, IEEE80211_CHAN_NO_HT40PLUS),
123 CHAN2GHZ(10, 2457, IEEE80211_CHAN_NO_HT40PLUS),
124 CHAN2GHZ(11, 2462, IEEE80211_CHAN_NO_HT40PLUS),
125 CHAN2GHZ(12, 2467,
126 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
127 IEEE80211_CHAN_NO_HT40PLUS),
128 CHAN2GHZ(13, 2472,
129 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
130 IEEE80211_CHAN_NO_HT40PLUS),
131 CHAN2GHZ(14, 2484,
132 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_IBSS |
7f38e5bc
SF		 133 IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS |
134 IEEE80211_CHAN_NO_OFDM)
5b435de0
AS		 135};
136
137static struct ieee80211_channel brcms_5ghz_nphy_chantable[] = {
138 /* UNII-1 */
139 CHAN5GHZ(36, IEEE80211_CHAN_NO_HT40MINUS),
140 CHAN5GHZ(40, IEEE80211_CHAN_NO_HT40PLUS),
141 CHAN5GHZ(44, IEEE80211_CHAN_NO_HT40MINUS),
142 CHAN5GHZ(48, IEEE80211_CHAN_NO_HT40PLUS),
143 /* UNII-2 */
144 CHAN5GHZ(52,
145 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
146 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
147 CHAN5GHZ(56,
148 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
149 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
150 CHAN5GHZ(60,
151 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
152 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
153 CHAN5GHZ(64,
154 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
155 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
156 /* MID */
157 CHAN5GHZ(100,
158 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
159 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
160 CHAN5GHZ(104,
161 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
162 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
163 CHAN5GHZ(108,
164 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
165 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
166 CHAN5GHZ(112,
167 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
168 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
169 CHAN5GHZ(116,
170 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
171 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
172 CHAN5GHZ(120,
173 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
174 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
175 CHAN5GHZ(124,
176 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
177 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
178 CHAN5GHZ(128,
179 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
180 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
181 CHAN5GHZ(132,
182 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
183 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40MINUS),
184 CHAN5GHZ(136,
185 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
186 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS),
187 CHAN5GHZ(140,
188 IEEE80211_CHAN_RADAR | IEEE80211_CHAN_NO_IBSS |
189 IEEE80211_CHAN_PASSIVE_SCAN | IEEE80211_CHAN_NO_HT40PLUS |
190 IEEE80211_CHAN_NO_HT40MINUS),
191 /* UNII-3 */
192 CHAN5GHZ(149, IEEE80211_CHAN_NO_HT40MINUS),
193 CHAN5GHZ(153, IEEE80211_CHAN_NO_HT40PLUS),
194 CHAN5GHZ(157, IEEE80211_CHAN_NO_HT40MINUS),
195 CHAN5GHZ(161, IEEE80211_CHAN_NO_HT40PLUS),
196 CHAN5GHZ(165, IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
197};
198
199/*
200 * The rate table is used for both 2.4G and 5G rates. The
201 * latter being a subset as it does not support CCK rates.
202 */
203static struct ieee80211_rate legacy_ratetable[] = {
204 RATE(10, 0),
205 RATE(20, IEEE80211_RATE_SHORT_PREAMBLE),
206 RATE(55, IEEE80211_RATE_SHORT_PREAMBLE),
207 RATE(110, IEEE80211_RATE_SHORT_PREAMBLE),
208 RATE(60, 0),
209 RATE(90, 0),
210 RATE(120, 0),
211 RATE(180, 0),
212 RATE(240, 0),
213 RATE(360, 0),
214 RATE(480, 0),
215 RATE(540, 0),
216};
217
218static const struct ieee80211_supported_band brcms_band_2GHz_nphy_template = {
219 .band = IEEE80211_BAND_2GHZ,
220 .channels = brcms_2ghz_chantable,
221 .n_channels = ARRAY_SIZE(brcms_2ghz_chantable),
222 .bitrates = legacy_ratetable,
223 .n_bitrates = ARRAY_SIZE(legacy_ratetable),
224 .ht_cap = {
225 /* from include/linux/ieee80211.h */
226 .cap = IEEE80211_HT_CAP_GRN_FLD |
6b1a89af 227 IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_SGI_40,
5b435de0
AS		 228 .ht_supported = true,
229 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
230 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
231 .mcs = {
232 /* placeholders for now */
233 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
234 .rx_highest = cpu_to_le16(500),
235 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
236 }
237};
238
239static const struct ieee80211_supported_band brcms_band_5GHz_nphy_template = {
240 .band = IEEE80211_BAND_5GHZ,
241 .channels = brcms_5ghz_nphy_chantable,
242 .n_channels = ARRAY_SIZE(brcms_5ghz_nphy_chantable),
243 .bitrates = legacy_ratetable + BRCMS_LEGACY_5G_RATE_OFFSET,
244 .n_bitrates = ARRAY_SIZE(legacy_ratetable) -
245 BRCMS_LEGACY_5G_RATE_OFFSET,
246 .ht_cap = {
247 .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 |
6b1a89af 248 IEEE80211_HT_CAP_SGI_40,
5b435de0
AS		 249 .ht_supported = true,
250 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
251 .ampdu_density = AMPDU_DEF_MPDU_DENSITY,
252 .mcs = {
253 /* placeholders for now */
254 .rx_mask = {0xff, 0xff, 0, 0, 0, 0, 0, 0, 0, 0},
255 .rx_highest = cpu_to_le16(500),
256 .tx_params = IEEE80211_HT_MCS_TX_DEFINED}
257 }
258};
259
260/* flags the given rate in rateset as requested */
261static void brcms_set_basic_rate(struct brcm_rateset *rs, u16 rate, bool is_br)
262{
263 u32 i;
264
265 for (i = 0; i < rs->count; i++) {
266 if (rate != (rs->rates[i] & 0x7f))
267 continue;
268
269 if (is_br)
270 rs->rates[i] |= BRCMS_RATE_FLAG;
271 else
272 rs->rates[i] &= BRCMS_RATE_MASK;
273 return;
274 }
275}
276
25b5632f
AS		 277/**
278 * This function frees the WL per-device resources.
279 *
280 * This function frees resources owned by the WL device pointed to
281 * by the wl parameter.
282 *
283 * precondition: can both be called locked and unlocked
284 *
285 */
286static void brcms_free(struct brcms_info *wl)
287{
288 struct brcms_timer *t, *next;
289
290 /* free ucode data */
291 if (wl->fw.fw_cnt)
292 brcms_ucode_data_free(&wl->ucode);
293 if (wl->irq)
294 free_irq(wl->irq, wl);
295
296 /* kill dpc */
297 tasklet_kill(&wl->tasklet);
298
299 if (wl->pub) {
300 brcms_debugfs_detach(wl->pub);
301 brcms_c_module_unregister(wl->pub, "linux", wl);
302 }
303
304 /* free common resources */
305 if (wl->wlc) {
306 brcms_c_detach(wl->wlc);
307 wl->wlc = NULL;
308 wl->pub = NULL;
309 }
310
311 /* virtual interface deletion is deferred so we cannot spinwait */
312
313 /* wait for all pending callbacks to complete */
314 while (atomic_read(&wl->callbacks) > 0)
315 schedule();
316
317 /* free timers */
318 for (t = wl->timers; t; t = next) {
319 next = t->next;
320#ifdef DEBUG
321 kfree(t->name);
322#endif
323 kfree(t);
324 }
325}
326
327/*
328* called from both kernel as from this kernel module (error flow on attach)
329* precondition: perimeter lock is not acquired.
330*/
331static void brcms_remove(struct bcma_device *pdev)
332{
333 struct ieee80211_hw *hw = bcma_get_drvdata(pdev);
334 struct brcms_info *wl = hw->priv;
335
336 if (wl->wlc) {
337 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, false);
338 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
339 ieee80211_unregister_hw(hw);
340 }
341
342 brcms_free(wl);
343
344 bcma_set_drvdata(pdev, NULL);
345 ieee80211_free_hw(hw);
346}
347
348/*
349 * Precondition: Since this function is called in brcms_pci_probe() context,
350 * no locking is required.
351 */
352static void brcms_release_fw(struct brcms_info *wl)
353{
354 int i;
355 for (i = 0; i < MAX_FW_IMAGES; i++) {
356 release_firmware(wl->fw.fw_bin[i]);
357 release_firmware(wl->fw.fw_hdr[i]);
358 }
359}
360
361/*
362 * Precondition: Since this function is called in brcms_pci_probe() context,
363 * no locking is required.
364 */
365static int brcms_request_fw(struct brcms_info *wl, struct bcma_device *pdev)
366{
367 int status;
368 struct device *device = &pdev->dev;
369 char fw_name[100];
370 int i;
371
372 memset(&wl->fw, 0, sizeof(struct brcms_firmware));
373 for (i = 0; i < MAX_FW_IMAGES; i++) {
374 if (brcms_firmwares[i] == NULL)
375 break;
376 sprintf(fw_name, "%s-%d.fw", brcms_firmwares[i],
377 UCODE_LOADER_API_VER);
378 status = request_firmware(&wl->fw.fw_bin[i], fw_name, device);
379 if (status) {
380 wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
381 KBUILD_MODNAME, fw_name);
382 return status;
383 }
384 sprintf(fw_name, "%s_hdr-%d.fw", brcms_firmwares[i],
385 UCODE_LOADER_API_VER);
386 status = request_firmware(&wl->fw.fw_hdr[i], fw_name, device);
387 if (status) {
388 wiphy_err(wl->wiphy, "%s: fail to load firmware %s\n",
389 KBUILD_MODNAME, fw_name);
390 return status;
391 }
392 wl->fw.hdr_num_entries[i] =
393 wl->fw.fw_hdr[i]->size / (sizeof(struct firmware_hdr));
394 }
395 wl->fw.fw_cnt = i;
396 status = brcms_ucode_data_init(wl, &wl->ucode);
397 brcms_release_fw(wl);
398 return status;
399}
400
36323f81
TH		 401static void brcms_ops_tx(struct ieee80211_hw *hw,
402 struct ieee80211_tx_control *control,
403 struct sk_buff *skb)
5b435de0
AS		 404{
405 struct brcms_info *wl = hw->priv;
644e8c07 406 struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
5b435de0
AS		 407
408 spin_lock_bh(&wl->lock);
409 if (!wl->pub->up) {
b353dda4 410 brcms_err(wl->wlc->hw->d11core, "ops->tx called while down\n");
5b435de0
AS		 411 kfree_skb(skb);
412 goto done;
413 }
c4dea35e
PH		 414 if (brcms_c_sendpkt_mac80211(wl->wlc, skb, hw))
415 tx_info->rate_driver_data[0] = control->sta;
5b435de0
AS		 416 done:
417 spin_unlock_bh(&wl->lock);
418}
419
420static int brcms_ops_start(struct ieee80211_hw *hw)
421{
422 struct brcms_info *wl = hw->priv;
423 bool blocked;
2646c46d 424 int err;
5b435de0
AS		 425
426 ieee80211_wake_queues(hw);
427 spin_lock_bh(&wl->lock);
428 blocked = brcms_rfkill_set_hw_state(wl);
429 spin_unlock_bh(&wl->lock);
430 if (!blocked)
431 wiphy_rfkill_stop_polling(wl->pub->ieee_hw->wiphy);
432
25b5632f
AS		 433 if (!wl->ucode.bcm43xx_bomminor) {
434 err = brcms_request_fw(wl, wl->wlc->hw->d11core);
435 if (err) {
436 brcms_remove(wl->wlc->hw->d11core);
437 return -ENOENT;
438 }
439 }
440
2646c46d 441 spin_lock_bh(&wl->lock);
dc460127
RV		 442 /* avoid acknowledging frames before a non-monitor device is added */
443 wl->mute_tx = true;
444
2646c46d 445 if (!wl->pub->up)
82d8eba3
PH		 446 if (!blocked)
447 err = brcms_up(wl);
448 else
449 err = -ERFKILL;
2646c46d
RV		 450 else
451 err = -ENODEV;
452 spin_unlock_bh(&wl->lock);
453
454 if (err != 0)
b353dda4
SF		 455 brcms_err(wl->wlc->hw->d11core, "%s: brcms_up() returned %d\n",
456 __func__, err);
2646c46d 457 return err;
5b435de0
AS		 458}
459
460static void brcms_ops_stop(struct ieee80211_hw *hw)
461{
2646c46d
RV		 462 struct brcms_info *wl = hw->priv;
463 int status;
464
5b435de0 465 ieee80211_stop_queues(hw);
2646c46d
RV		 466
467 if (wl->wlc == NULL)
468 return;
469
470 spin_lock_bh(&wl->lock);
cacaa64b 471 status = brcms_c_chipmatch(wl->wlc->hw->d11core);
2646c46d
RV		 472 spin_unlock_bh(&wl->lock);
473 if (!status) {
b353dda4 474 brcms_err(wl->wlc->hw->d11core,
2646c46d
RV		 475 "wl: brcms_ops_stop: chipmatch failed\n");
476 return;
477 }
478
479 /* put driver in down state */
480 spin_lock_bh(&wl->lock);
481 brcms_down(wl);
482 spin_unlock_bh(&wl->lock);
5b435de0
AS		 483}
484
485static int
486brcms_ops_add_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
487{
dc460127
RV		 488 struct brcms_info *wl = hw->priv;
489
5b435de0 490 /* Just STA for now */
1525662a 491 if (vif->type != NL80211_IFTYPE_STATION) {
b353dda4
SF		 492 brcms_err(wl->wlc->hw->d11core,
493 "%s: Attempt to add type %d, only STA for now\n",
494 __func__, vif->type);
5b435de0
AS		 495 return -EOPNOTSUPP;
496 }
497
66578c0a 498 spin_lock_bh(&wl->lock);
b180b100 499 memcpy(wl->pub->cur_etheraddr, vif->addr, sizeof(vif->addr));
dc460127
RV		 500 wl->mute_tx = false;
501 brcms_c_mute(wl->wlc, false);
66578c0a 502 spin_unlock_bh(&wl->lock);
dc460127 503
2646c46d 504 return 0;
5b435de0
AS		 505}
506
507static void
508brcms_ops_remove_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
509{
5b435de0
AS		 510}
511
512static int brcms_ops_config(struct ieee80211_hw *hw, u32 changed)
513{
514 struct ieee80211_conf *conf = &hw->conf;
515 struct brcms_info *wl = hw->priv;
b353dda4 516 struct bcma_device *core = wl->wlc->hw->d11core;
5b435de0
AS		 517 int err = 0;
518 int new_int;
5b435de0
AS		 519
520 spin_lock_bh(&wl->lock);
521 if (changed & IEEE80211_CONF_CHANGE_LISTEN_INTERVAL) {
522 brcms_c_set_beacon_listen_interval(wl->wlc,
523 conf->listen_interval);
524 }
525 if (changed & IEEE80211_CONF_CHANGE_MONITOR)
b353dda4
SF		 526 brcms_dbg_info(core, "%s: change monitor mode: %s\n",
527 __func__, conf->flags & IEEE80211_CONF_MONITOR ?
528 "true" : "false");
5b435de0 529 if (changed & IEEE80211_CONF_CHANGE_PS)
b353dda4 530 brcms_err(core, "%s: change power-save mode: %s (implement)\n",
5b435de0
AS		 531 __func__, conf->flags & IEEE80211_CONF_PS ?
532 "true" : "false");
533
534 if (changed & IEEE80211_CONF_CHANGE_POWER) {
535 err = brcms_c_set_tx_power(wl->wlc, conf->power_level);
536 if (err < 0) {
b353dda4 537 brcms_err(core, "%s: Error setting power_level\n",
5b435de0
AS		 538 __func__);
539 goto config_out;
540 }
541 new_int = brcms_c_get_tx_power(wl->wlc);
542 if (new_int != conf->power_level)
b353dda4
SF		 543 brcms_err(core,
544 "%s: Power level req != actual, %d %d\n",
545 __func__, conf->power_level,
5b435de0
AS		 546 new_int);
547 }
548 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
549 if (conf->channel_type == NL80211_CHAN_HT20 ||
550 conf->channel_type == NL80211_CHAN_NO_HT)
551 err = brcms_c_set_channel(wl->wlc,
552 conf->channel->hw_value);
553 else
554 err = -ENOTSUPP;
555 }
556 if (changed & IEEE80211_CONF_CHANGE_RETRY_LIMITS)
557 err = brcms_c_set_rate_limit(wl->wlc,
558 conf->short_frame_max_tx_count,
559 conf->long_frame_max_tx_count);
560
561 config_out:
562 spin_unlock_bh(&wl->lock);
563 return err;
564}
565
566static void
567brcms_ops_bss_info_changed(struct ieee80211_hw *hw,
568 struct ieee80211_vif *vif,
569 struct ieee80211_bss_conf *info, u32 changed)
570{
571 struct brcms_info *wl = hw->priv;
b353dda4 572 struct bcma_device *core = wl->wlc->hw->d11core;
5b435de0
AS		 573
574 if (changed & BSS_CHANGED_ASSOC) {
575 /* association status changed (associated/disassociated)
576 * also implies a change in the AID.
577 */
b353dda4 578 brcms_err(core, "%s: %s: %sassociated\n", KBUILD_MODNAME,
5b435de0
AS		 579 __func__, info->assoc ? "" : "dis");
580 spin_lock_bh(&wl->lock);
581 brcms_c_associate_upd(wl->wlc, info->assoc);
582 spin_unlock_bh(&wl->lock);
583 }
584 if (changed & BSS_CHANGED_ERP_SLOT) {
585 s8 val;
586
587 /* slot timing changed */
588 if (info->use_short_slot)
589 val = 1;
590 else
591 val = 0;
592 spin_lock_bh(&wl->lock);
593 brcms_c_set_shortslot_override(wl->wlc, val);
594 spin_unlock_bh(&wl->lock);
595 }
596
597 if (changed & BSS_CHANGED_HT) {
598 /* 802.11n parameters changed */
599 u16 mode = info->ht_operation_mode;
600
601 spin_lock_bh(&wl->lock);
602 brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_CFG,
603 mode & IEEE80211_HT_OP_MODE_PROTECTION);
604 brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_NONGF,
605 mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
606 brcms_c_protection_upd(wl->wlc, BRCMS_PROT_N_OBSS,
607 mode & IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT);
608 spin_unlock_bh(&wl->lock);
609 }
610 if (changed & BSS_CHANGED_BASIC_RATES) {
611 struct ieee80211_supported_band *bi;
612 u32 br_mask, i;
613 u16 rate;
614 struct brcm_rateset rs;
615 int error;
616
617 /* retrieve the current rates */
618 spin_lock_bh(&wl->lock);
619 brcms_c_get_current_rateset(wl->wlc, &rs);
620 spin_unlock_bh(&wl->lock);
621
622 br_mask = info->basic_rates;
623 bi = hw->wiphy->bands[brcms_c_get_curband(wl->wlc)];
624 for (i = 0; i < bi->n_bitrates; i++) {
625 /* convert to internal rate value */
626 rate = (bi->bitrates[i].bitrate << 1) / 10;
627
628 /* set/clear basic rate flag */
629 brcms_set_basic_rate(&rs, rate, br_mask & 1);
630 br_mask >>= 1;
631 }
632
633 /* update the rate set */
634 spin_lock_bh(&wl->lock);
635 error = brcms_c_set_rateset(wl->wlc, &rs);
636 spin_unlock_bh(&wl->lock);
637 if (error)
b353dda4 638 brcms_err(core, "changing basic rates failed: %d\n",
5b435de0
AS		 639 error);
640 }
641 if (changed & BSS_CHANGED_BEACON_INT) {
642 /* Beacon interval changed */
643 spin_lock_bh(&wl->lock);
644 brcms_c_set_beacon_period(wl->wlc, info->beacon_int);
645 spin_unlock_bh(&wl->lock);
646 }
647 if (changed & BSS_CHANGED_BSSID) {
648 /* BSSID changed, for whatever reason (IBSS and managed mode) */
649 spin_lock_bh(&wl->lock);
650 brcms_c_set_addrmatch(wl->wlc, RCM_BSSID_OFFSET, info->bssid);
651 spin_unlock_bh(&wl->lock);
652 }
653 if (changed & BSS_CHANGED_BEACON)
654 /* Beacon data changed, retrieve new beacon (beaconing modes) */
b353dda4 655 brcms_err(core, "%s: beacon changed\n", __func__);
5b435de0
AS		 656
657 if (changed & BSS_CHANGED_BEACON_ENABLED) {
658 /* Beaconing should be enabled/disabled (beaconing modes) */
b353dda4 659 brcms_err(core, "%s: Beacon enabled: %s\n", __func__,
5b435de0
AS		 660 info->enable_beacon ? "true" : "false");
661 }
662
663 if (changed & BSS_CHANGED_CQM) {
664 /* Connection quality monitor config changed */
b353dda4 665 brcms_err(core, "%s: cqm change: threshold %d, hys %d "
5b435de0
AS		 666 " (implement)\n", __func__, info->cqm_rssi_thold,
667 info->cqm_rssi_hyst);
668 }
669
670 if (changed & BSS_CHANGED_IBSS) {
671 /* IBSS join status changed */
b353dda4
SF		 672 brcms_err(core, "%s: IBSS joined: %s (implement)\n",
673 __func__, info->ibss_joined ? "true" : "false");
5b435de0
AS		 674 }
675
676 if (changed & BSS_CHANGED_ARP_FILTER) {
677 /* Hardware ARP filter address list or state changed */
0f19b41e
JB		 678 brcms_err(core, "%s: arp filtering: %d addresses"
679 " (implement)\n", __func__, info->arp_addr_cnt);
5b435de0
AS		 680 }
681
682 if (changed & BSS_CHANGED_QOS) {
683 /*
684 * QoS for this association was enabled/disabled.
685 * Note that it is only ever disabled for station mode.
686 */
b353dda4
SF		 687 brcms_err(core, "%s: qos enabled: %s (implement)\n",
688 __func__, info->qos ? "true" : "false");
5b435de0
AS		 689 }
690 return;
691}
692
693static void
694brcms_ops_configure_filter(struct ieee80211_hw *hw,
695 unsigned int changed_flags,
696 unsigned int *total_flags, u64 multicast)
697{
698 struct brcms_info *wl = hw->priv;
b353dda4 699 struct bcma_device *core = wl->wlc->hw->d11core;
5b435de0
AS		 700
701 changed_flags &= MAC_FILTERS;
702 *total_flags &= MAC_FILTERS;
be667669 703
5b435de0 704 if (changed_flags & FIF_PROMISC_IN_BSS)
b353dda4 705 brcms_dbg_info(core, "FIF_PROMISC_IN_BSS\n");
5b435de0 706 if (changed_flags & FIF_ALLMULTI)
b353dda4 707 brcms_dbg_info(core, "FIF_ALLMULTI\n");
5b435de0 708 if (changed_flags & FIF_FCSFAIL)
ad667867 709 brcms_dbg_info(core, "FIF_FCSFAIL\n");
5b435de0 710 if (changed_flags & FIF_CONTROL)
b353dda4 711 brcms_dbg_info(core, "FIF_CONTROL\n");
5b435de0 712 if (changed_flags & FIF_OTHER_BSS)
b353dda4 713 brcms_dbg_info(core, "FIF_OTHER_BSS\n");
be667669 714 if (changed_flags & FIF_PSPOLL)
b353dda4 715 brcms_dbg_info(core, "FIF_PSPOLL\n");
be667669 716 if (changed_flags & FIF_BCN_PRBRESP_PROMISC)
b353dda4 717 brcms_dbg_info(core, "FIF_BCN_PRBRESP_PROMISC\n");
be667669
AB		 718
719 spin_lock_bh(&wl->lock);
720 brcms_c_mac_promisc(wl->wlc, *total_flags);
721 spin_unlock_bh(&wl->lock);
5b435de0
AS		 722 return;
723}
724
725static void brcms_ops_sw_scan_start(struct ieee80211_hw *hw)
726{
727 struct brcms_info *wl = hw->priv;
728 spin_lock_bh(&wl->lock);
729 brcms_c_scan_start(wl->wlc);
730 spin_unlock_bh(&wl->lock);
731 return;
732}
733
734static void brcms_ops_sw_scan_complete(struct ieee80211_hw *hw)
735{
736 struct brcms_info *wl = hw->priv;
737 spin_lock_bh(&wl->lock);
738 brcms_c_scan_stop(wl->wlc);
739 spin_unlock_bh(&wl->lock);
740 return;
741}
742
743static int
744brcms_ops_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 queue,
745 const struct ieee80211_tx_queue_params *params)
746{
747 struct brcms_info *wl = hw->priv;
748
749 spin_lock_bh(&wl->lock);
750 brcms_c_wme_setparams(wl->wlc, queue, params, true);
751 spin_unlock_bh(&wl->lock);
752
753 return 0;
754}
755
756static int
757brcms_ops_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
758 struct ieee80211_sta *sta)
759{
760 struct brcms_info *wl = hw->priv;
761 struct scb *scb = &wl->wlc->pri_scb;
762
763 brcms_c_init_scb(scb);
764
765 wl->pub->global_ampdu = &(scb->scb_ampdu);
766 wl->pub->global_ampdu->scb = scb;
767 wl->pub->global_ampdu->max_pdu = 16;
768
5b435de0
AS		 769 /*
770 * minstrel_ht initiates addBA on our behalf by calling
771 * ieee80211_start_tx_ba_session()
772 */
773 return 0;
774}
775
776static int
777brcms_ops_ampdu_action(struct ieee80211_hw *hw,
778 struct ieee80211_vif *vif,
779 enum ieee80211_ampdu_mlme_action action,
780 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
781 u8 buf_size)
782{
783 struct brcms_info *wl = hw->priv;
784 struct scb *scb = &wl->wlc->pri_scb;
785 int status;
786
787 if (WARN_ON(scb->magic != SCB_MAGIC))
788 return -EIDRM;
789 switch (action) {
790 case IEEE80211_AMPDU_RX_START:
791 break;
792 case IEEE80211_AMPDU_RX_STOP:
793 break;
794 case IEEE80211_AMPDU_TX_START:
795 spin_lock_bh(&wl->lock);
796 status = brcms_c_aggregatable(wl->wlc, tid);
797 spin_unlock_bh(&wl->lock);
798 if (!status) {
b353dda4
SF		 799 brcms_err(wl->wlc->hw->d11core,
800 "START: tid %d is not agg\'able\n", tid);
5b435de0
AS		 801 return -EINVAL;
802 }
803 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
804 break;
805
18b559d5
JB		 806 case IEEE80211_AMPDU_TX_STOP_CONT:
807 case IEEE80211_AMPDU_TX_STOP_FLUSH:
808 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
5b435de0
AS		 809 spin_lock_bh(&wl->lock);
810 brcms_c_ampdu_flush(wl->wlc, sta, tid);
811 spin_unlock_bh(&wl->lock);
812 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
813 break;
814 case IEEE80211_AMPDU_TX_OPERATIONAL:
815 /*
816 * BA window size from ADDBA response ('buf_size') defines how
817 * many outstanding MPDUs are allowed for the BA stream by
818 * recipient and traffic class. 'ampdu_factor' gives maximum
819 * AMPDU size.
820 */
821 spin_lock_bh(&wl->lock);
822 brcms_c_ampdu_tx_operational(wl->wlc, tid, buf_size,
823 (1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
824 sta->ht_cap.ampdu_factor)) - 1);
825 spin_unlock_bh(&wl->lock);
826 /* Power save wakeup */
827 break;
828 default:
b353dda4
SF		 829 brcms_err(wl->wlc->hw->d11core,
830 "%s: Invalid command, ignoring\n", __func__);
5b435de0
AS		 831 }
832
833 return 0;
834}
835
836static void brcms_ops_rfkill_poll(struct ieee80211_hw *hw)
837{
838 struct brcms_info *wl = hw->priv;
839 bool blocked;
840
841 spin_lock_bh(&wl->lock);
842 blocked = brcms_c_check_radio_disabled(wl->wlc);
843 spin_unlock_bh(&wl->lock);
844
845 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
846}
847
7b2385b9
AS		 848static bool brcms_tx_flush_completed(struct brcms_info *wl)
849{
850 bool result;
851
852 spin_lock_bh(&wl->lock);
853 result = brcms_c_tx_flush_completed(wl->wlc);
854 spin_unlock_bh(&wl->lock);
855 return result;
856}
857
5b435de0
AS		 858static void brcms_ops_flush(struct ieee80211_hw *hw, bool drop)
859{
860 struct brcms_info *wl = hw->priv;
7b2385b9 861 int ret;
5b435de0
AS		 862
863 no_printk("%s: drop = %s\n", __func__, drop ? "true" : "false");
864
7b2385b9
AS		 865 ret = wait_event_timeout(wl->tx_flush_wq,
866 brcms_tx_flush_completed(wl),
867 msecs_to_jiffies(BRCMS_FLUSH_TIMEOUT));
868
869 brcms_dbg_mac80211(wl->wlc->hw->d11core,
870 "ret=%d\n", jiffies_to_msecs(ret));
5b435de0
AS		 871}
872
873static const struct ieee80211_ops brcms_ops = {
874 .tx = brcms_ops_tx,
875 .start = brcms_ops_start,
876 .stop = brcms_ops_stop,
877 .add_interface = brcms_ops_add_interface,
878 .remove_interface = brcms_ops_remove_interface,
879 .config = brcms_ops_config,
880 .bss_info_changed = brcms_ops_bss_info_changed,
881 .configure_filter = brcms_ops_configure_filter,
882 .sw_scan_start = brcms_ops_sw_scan_start,
883 .sw_scan_complete = brcms_ops_sw_scan_complete,
884 .conf_tx = brcms_ops_conf_tx,
885 .sta_add = brcms_ops_sta_add,
886 .ampdu_action = brcms_ops_ampdu_action,
887 .rfkill_poll = brcms_ops_rfkill_poll,
888 .flush = brcms_ops_flush,
889};
890
5b435de0
AS		 891void brcms_dpc(unsigned long data)
892{
893 struct brcms_info *wl;
894
895 wl = (struct brcms_info *) data;
896
897 spin_lock_bh(&wl->lock);
898
899 /* call the common second level interrupt handler */
900 if (wl->pub->up) {
901 if (wl->resched) {
902 unsigned long flags;
903
904 spin_lock_irqsave(&wl->isr_lock, flags);
905 brcms_c_intrsupd(wl->wlc);
906 spin_unlock_irqrestore(&wl->isr_lock, flags);
907 }
908
909 wl->resched = brcms_c_dpc(wl->wlc, true);
910 }
911
912 /* brcms_c_dpc() may bring the driver down */
913 if (!wl->pub->up)
914 goto done;
915
916 /* re-schedule dpc */
917 if (wl->resched)
918 tasklet_schedule(&wl->tasklet);
919 else
920 /* re-enable interrupts */
921 brcms_intrson(wl);
922
923 done:
924 spin_unlock_bh(&wl->lock);
7b2385b9 925 wake_up(&wl->tx_flush_wq);
5b435de0
AS		 926}
927
5b435de0
AS		 928static irqreturn_t brcms_isr(int irq, void *dev_id)
929{
930 struct brcms_info *wl;
94d9902d 931 irqreturn_t ret = IRQ_NONE;
5b435de0
AS		 932
933 wl = (struct brcms_info *) dev_id;
934
935 spin_lock(&wl->isr_lock);
936
937 /* call common first level interrupt handler */
94d9902d
PH		 938 if (brcms_c_isr(wl->wlc)) {
939 /* schedule second level handler */
940 tasklet_schedule(&wl->tasklet);
941 ret = IRQ_HANDLED;
5b435de0
AS		 942 }
943
944 spin_unlock(&wl->isr_lock);
945
94d9902d 946 return ret;
5b435de0
AS		 947}
948
949/*
950 * is called in brcms_pci_probe() context, therefore no locking required.
951 */
952static int ieee_hw_rate_init(struct ieee80211_hw *hw)
953{
954 struct brcms_info *wl = hw->priv;
955 struct brcms_c_info *wlc = wl->wlc;
956 struct ieee80211_supported_band *band;
957 int has_5g = 0;
958 u16 phy_type;
959
960 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = NULL;
961 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = NULL;
962
963 phy_type = brcms_c_get_phy_type(wl->wlc, 0);
964 if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) {
965 band = &wlc->bandstate[BAND_2G_INDEX]->band;
966 *band = brcms_band_2GHz_nphy_template;
967 if (phy_type == PHY_TYPE_LCN) {
968 /* Single stream */
969 band->ht_cap.mcs.rx_mask[1] = 0;
df4492f8 970 band->ht_cap.mcs.rx_highest = cpu_to_le16(72);
5b435de0
AS		 971 }
972 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = band;
973 } else {
974 return -EPERM;
975 }
976
977 /* Assume all bands use the same phy. True for 11n devices. */
978 if (wl->pub->_nbands > 1) {
979 has_5g++;
980 if (phy_type == PHY_TYPE_N || phy_type == PHY_TYPE_LCN) {
981 band = &wlc->bandstate[BAND_5G_INDEX]->band;
982 *band = brcms_band_5GHz_nphy_template;
983 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = band;
984 } else {
985 return -EPERM;
986 }
987 }
988 return 0;
989}
990
991/*
992 * is called in brcms_pci_probe() context, therefore no locking required.
993 */
994static int ieee_hw_init(struct ieee80211_hw *hw)
995{
996 hw->flags = IEEE80211_HW_SIGNAL_DBM
997 /* | IEEE80211_HW_CONNECTION_MONITOR What is this? */
998 | IEEE80211_HW_REPORTS_TX_ACK_STATUS
999 | IEEE80211_HW_AMPDU_AGGREGATION;
1000
1001 hw->extra_tx_headroom = brcms_c_get_header_len();
1002 hw->queues = N_TX_QUEUES;
1003 hw->max_rates = 2; /* Primary rate and 1 fallback rate */
1004
1005 /* channel change time is dependent on chip and band */
1006 hw->channel_change_time = 7 * 1000;
1007 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION);
1008
1009 hw->rate_control_algorithm = "minstrel_ht";
1010
1011 hw->sta_data_size = 0;
1012 return ieee_hw_rate_init(hw);
1013}
1014
1015/**
1016 * attach to the WL device.
1017 *
1018 * Attach to the WL device identified by vendor and device parameters.
1019 * regs is a host accessible memory address pointing to WL device registers.
1020 *
1021 * brcms_attach is not defined as static because in the case where no bus
1022 * is defined, wl_attach will never be called, and thus, gcc will issue
1023 * a warning that this function is defined but not used if we declare
1024 * it as static.
1025 *
1026 *
2e756560 1027 * is called in brcms_bcma_probe() context, therefore no locking required.
5b435de0 1028 */
2e756560 1029static struct brcms_info *brcms_attach(struct bcma_device *pdev)
5b435de0
AS		 1030{
1031 struct brcms_info *wl = NULL;
1032 int unit, err;
1033 struct ieee80211_hw *hw;
1034 u8 perm[ETH_ALEN];
1035
1036 unit = n_adapters_found;
1037 err = 0;
1038
1039 if (unit < 0)
1040 return NULL;
1041
1042 /* allocate private info */
2e756560 1043 hw = bcma_get_drvdata(pdev);
5b435de0
AS		 1044 if (hw != NULL)
1045 wl = hw->priv;
1046 if (WARN_ON(hw == NULL) || WARN_ON(wl == NULL))
1047 return NULL;
1048 wl->wiphy = hw->wiphy;
1049
1050 atomic_set(&wl->callbacks, 0);
1051
7b2385b9
AS		 1052 init_waitqueue_head(&wl->tx_flush_wq);
1053
5b435de0
AS		 1054 /* setup the bottom half handler */
1055 tasklet_init(&wl->tasklet, brcms_dpc, (unsigned long) wl);
1056
5b435de0
AS		 1057 spin_lock_init(&wl->lock);
1058 spin_lock_init(&wl->isr_lock);
1059
5b435de0 1060 /* common load-time initialization */
b63337a0 1061 wl->wlc = brcms_c_attach((void *)wl, pdev, unit, false, &err);
5b435de0
AS		 1062 if (!wl->wlc) {
1063 wiphy_err(wl->wiphy, "%s: attach() failed with code %d\n",
1064 KBUILD_MODNAME, err);
1065 goto fail;
1066 }
1067 wl->pub = brcms_c_pub(wl->wlc);
1068
1069 wl->pub->ieee_hw = hw;
1070
5b435de0 1071 /* register our interrupt handler */
00bcda40 1072 if (request_irq(pdev->irq, brcms_isr,
2e756560 1073 IRQF_SHARED, KBUILD_MODNAME, wl)) {
5b435de0
AS		 1074 wiphy_err(wl->wiphy, "wl%d: request_irq() failed\n", unit);
1075 goto fail;
1076 }
00bcda40 1077 wl->irq = pdev->irq;
5b435de0
AS		 1078
1079 /* register module */
1080 brcms_c_module_register(wl->pub, "linux", wl, NULL);
1081
1082 if (ieee_hw_init(hw)) {
1083 wiphy_err(wl->wiphy, "wl%d: %s: ieee_hw_init failed!\n", unit,
1084 __func__);
1085 goto fail;
1086 }
1087
cf03c5da
SF		 1088 brcms_c_regd_init(wl->wlc);
1089
5b435de0
AS		 1090 memcpy(perm, &wl->pub->cur_etheraddr, ETH_ALEN);
1091 if (WARN_ON(!is_valid_ether_addr(perm)))
1092 goto fail;
1093 SET_IEEE80211_PERM_ADDR(hw, perm);
1094
1095 err = ieee80211_register_hw(hw);
1096 if (err)
1097 wiphy_err(wl->wiphy, "%s: ieee80211_register_hw failed, status"
1098 "%d\n", __func__, err);
1099
d597ee7e
AS		 1100 if (wl->pub->srom_ccode[0] &&
1101 regulatory_hint(wl->wiphy, wl->pub->srom_ccode))
1102 wiphy_err(wl->wiphy, "%s: regulatory hint failed\n", __func__);
5b435de0 1103
8e21df23
PH		 1104 brcms_debugfs_attach(wl->pub);
1105 brcms_debugfs_create_files(wl->pub);
5b435de0
AS		 1106 n_adapters_found++;
1107 return wl;
1108
1109fail:
1110 brcms_free(wl);
1111 return NULL;
1112}
1113
1114
1115
1116/**
1117 * determines if a device is a WL device, and if so, attaches it.
1118 *
1119 * This function determines if a device pointed to by pdev is a WL device,
1120 * and if so, performs a brcms_attach() on it.
1121 *
1122 * Perimeter lock is initialized in the course of this function.
1123 */
fcff0c08 1124static int brcms_bcma_probe(struct bcma_device *pdev)
5b435de0 1125{
5b435de0
AS		 1126 struct brcms_info *wl;
1127 struct ieee80211_hw *hw;
5b435de0 1128
2e756560
AS		 1129 dev_info(&pdev->dev, "mfg %x core %x rev %d class %d irq %d\n",
1130 pdev->id.manuf, pdev->id.id, pdev->id.rev, pdev->id.class,
00bcda40 1131 pdev->irq);
5b435de0 1132
2e756560
AS		 1133 if ((pdev->id.manuf != BCMA_MANUF_BCM) ||
1134 (pdev->id.id != BCMA_CORE_80211))
5b435de0 1135 return -ENODEV;
5b435de0
AS		 1136
1137 hw = ieee80211_alloc_hw(sizeof(struct brcms_info), &brcms_ops);
1138 if (!hw) {
1139 pr_err("%s: ieee80211_alloc_hw failed\n", __func__);
1140 return -ENOMEM;
1141 }
1142
1143 SET_IEEE80211_DEV(hw, &pdev->dev);
1144
2e756560 1145 bcma_set_drvdata(pdev, hw);
5b435de0
AS		 1146
1147 memset(hw->priv, 0, sizeof(*wl));
1148
2e756560 1149 wl = brcms_attach(pdev);
5b435de0 1150 if (!wl) {
02f77195 1151 pr_err("%s: brcms_attach failed!\n", __func__);
5b435de0
AS		 1152 return -ENODEV;
1153 }
1154 return 0;
1155}
1156
7d5869e7 1157static int brcms_suspend(struct bcma_device *pdev)
5b435de0
AS		 1158{
1159 struct brcms_info *wl;
1160 struct ieee80211_hw *hw;
1161
2e756560 1162 hw = bcma_get_drvdata(pdev);
5b435de0
AS		 1163 wl = hw->priv;
1164 if (!wl) {
137dabed
AS		 1165 pr_err("%s: %s: no driver private struct!\n", KBUILD_MODNAME,
1166 __func__);
5b435de0
AS		 1167 return -ENODEV;
1168 }
1169
1170 /* only need to flag hw is down for proper resume */
1171 spin_lock_bh(&wl->lock);
1172 wl->pub->hw_up = false;
1173 spin_unlock_bh(&wl->lock);
1174
b353dda4 1175 brcms_dbg_info(wl->wlc->hw->d11core, "brcms_suspend ok\n");
5b435de0 1176
2e756560
AS		 1177 return 0;
1178}
1179
1180static int brcms_resume(struct bcma_device *pdev)
1181{
7e9e7fa4 1182 return 0;
5b435de0
AS		 1183}
1184
2e756560 1185static struct bcma_driver brcms_bcma_driver = {
5b435de0 1186 .name = KBUILD_MODNAME,
2e756560 1187 .probe = brcms_bcma_probe,
5b435de0
AS		 1188 .suspend = brcms_suspend,
1189 .resume = brcms_resume,
fcff0c08 1190 .remove = brcms_remove,
2e756560 1191 .id_table = brcms_coreid_table,
5b435de0
AS		 1192};
1193
1194/**
2e756560 1195 * This is the main entry point for the brcmsmac driver.
5b435de0 1196 *
b0c359b2
AS		 1197 * This function is scheduled upon module initialization and
1198 * does the driver registration, which result in brcms_bcma_probe()
1199 * call resulting in the driver bringup.
5b435de0 1200 */
b0c359b2 1201static void brcms_driver_init(struct work_struct *work)
5b435de0 1202{
b0c359b2
AS		 1203 int error;
1204
1205 error = bcma_driver_register(&brcms_bcma_driver);
1206 if (error)
1207 pr_err("%s: register returned %d\n", __func__, error);
1208}
1209
1210static DECLARE_WORK(brcms_driver_work, brcms_driver_init);
5b435de0 1211
b0c359b2
AS		 1212static int __init brcms_module_init(void)
1213{
8e21df23 1214 brcms_debugfs_init();
b0c359b2
AS		 1215 if (!schedule_work(&brcms_driver_work))
1216 return -EBUSY;
5b435de0 1217
b0c359b2 1218 return 0;
5b435de0
AS		 1219}
1220
1221/**
2e756560 1222 * This function unloads the brcmsmac driver from the system.
5b435de0 1223 *
2e756560 1224 * This function unconditionally unloads the brcmsmac driver module from the
5b435de0
AS		 1225 * system.
1226 *
1227 */
1228static void __exit brcms_module_exit(void)
1229{
b0c359b2 1230 cancel_work_sync(&brcms_driver_work);
2e756560 1231 bcma_driver_unregister(&brcms_bcma_driver);
8e21df23 1232 brcms_debugfs_exit();
5b435de0
AS		 1233}
1234
1235module_init(brcms_module_init);
1236module_exit(brcms_module_exit);
1237
1238/*
1239 * precondition: perimeter lock has been acquired
1240 */
1241void brcms_txflowcontrol(struct brcms_info *wl, struct brcms_if *wlif,
1242 bool state, int prio)
1243{
b353dda4 1244 brcms_err(wl->wlc->hw->d11core, "Shouldn't be here %s\n", __func__);
5b435de0
AS		 1245}
1246
1247/*
1248 * precondition: perimeter lock has been acquired
1249 */
1250void brcms_init(struct brcms_info *wl)
1251{
b353dda4
SF		 1252 brcms_dbg_info(wl->wlc->hw->d11core, "Initializing wl%d\n",
1253 wl->pub->unit);
5b435de0 1254 brcms_reset(wl);
dc460127 1255 brcms_c_init(wl->wlc, wl->mute_tx);
5b435de0
AS		 1256}
1257
1258/*
1259 * precondition: perimeter lock has been acquired
1260 */
1261uint brcms_reset(struct brcms_info *wl)
1262{
b353dda4 1263 brcms_dbg_info(wl->wlc->hw->d11core, "Resetting wl%d\n", wl->pub->unit);
5b435de0
AS		 1264 brcms_c_reset(wl->wlc);
1265
1266 /* dpc will not be rescheduled */
3db1cd5c 1267 wl->resched = false;
5b435de0 1268
ea2d2183
VZ		 1269 /* inform publicly that interface is down */
1270 wl->pub->up = false;
1271
5b435de0
AS		 1272 return 0;
1273}
1274
c261bdf8
RV		 1275void brcms_fatal_error(struct brcms_info *wl)
1276{
b353dda4 1277 brcms_err(wl->wlc->hw->d11core, "wl%d: fatal error, reinitializing\n",
c261bdf8
RV		 1278 wl->wlc->pub->unit);
1279 brcms_reset(wl);
1280 ieee80211_restart_hw(wl->pub->ieee_hw);
1281}
1282
5b435de0
AS		 1283/*
1284 * These are interrupt on/off entry points. Disable interrupts
1285 * during interrupt state transition.
1286 */
1287void brcms_intrson(struct brcms_info *wl)
1288{
1289 unsigned long flags;
1290
1291 spin_lock_irqsave(&wl->isr_lock, flags);
1292 brcms_c_intrson(wl->wlc);
1293 spin_unlock_irqrestore(&wl->isr_lock, flags);
1294}
1295
1296u32 brcms_intrsoff(struct brcms_info *wl)
1297{
1298 unsigned long flags;
1299 u32 status;
1300
1301 spin_lock_irqsave(&wl->isr_lock, flags);
1302 status = brcms_c_intrsoff(wl->wlc);
1303 spin_unlock_irqrestore(&wl->isr_lock, flags);
1304 return status;
1305}
1306
1307void brcms_intrsrestore(struct brcms_info *wl, u32 macintmask)
1308{
1309 unsigned long flags;
1310
1311 spin_lock_irqsave(&wl->isr_lock, flags);
1312 brcms_c_intrsrestore(wl->wlc, macintmask);
1313 spin_unlock_irqrestore(&wl->isr_lock, flags);
1314}
1315
1316/*
1317 * precondition: perimeter lock has been acquired
1318 */
1319int brcms_up(struct brcms_info *wl)
1320{
1321 int error = 0;
1322
1323 if (wl->pub->up)
1324 return 0;
1325
1326 error = brcms_c_up(wl->wlc);
1327
1328 return error;
1329}
1330
1331/*
1332 * precondition: perimeter lock has been acquired
1333 */
1334void brcms_down(struct brcms_info *wl)
1335{
1336 uint callbacks, ret_val = 0;
1337
1338 /* call common down function */
1339 ret_val = brcms_c_down(wl->wlc);
1340 callbacks = atomic_read(&wl->callbacks) - ret_val;
1341
1342 /* wait for down callbacks to complete */
1343 spin_unlock_bh(&wl->lock);
1344
1345 /* For HIGH_only driver, it's important to actually schedule other work,
1346 * not just spin wait since everything runs at schedule level
1347 */
1348 SPINWAIT((atomic_read(&wl->callbacks) > callbacks), 100 * 1000);
1349
1350 spin_lock_bh(&wl->lock);
1351}
1352
1353/*
1354* precondition: perimeter lock is not acquired
1355 */
2a7fc5b1 1356static void _brcms_timer(struct work_struct *work)
5b435de0 1357{
2a7fc5b1
RV		 1358 struct brcms_timer *t = container_of(work, struct brcms_timer,
1359 dly_wrk.work);
1360
5b435de0
AS		 1361 spin_lock_bh(&t->wl->lock);
1362
1363 if (t->set) {
1364 if (t->periodic) {
5b435de0 1365 atomic_inc(&t->wl->callbacks);
2a7fc5b1
RV		 1366 ieee80211_queue_delayed_work(t->wl->pub->ieee_hw,
1367 &t->dly_wrk,
1368 msecs_to_jiffies(t->ms));
1369 } else {
5b435de0 1370 t->set = false;
2a7fc5b1 1371 }
5b435de0
AS		 1372
1373 t->fn(t->arg);
1374 }
1375
1376 atomic_dec(&t->wl->callbacks);
1377
1378 spin_unlock_bh(&t->wl->lock);
1379}
1380
5b435de0
AS		 1381/*
1382 * Adds a timer to the list. Caller supplies a timer function.
1383 * Is called from wlc.
1384 *
1385 * precondition: perimeter lock has been acquired
1386 */
1387struct brcms_timer *brcms_init_timer(struct brcms_info *wl,
1388 void (*fn) (void *arg),
1389 void *arg, const char *name)
1390{
1391 struct brcms_timer *t;
1392
1393 t = kzalloc(sizeof(struct brcms_timer), GFP_ATOMIC);
1394 if (!t)
1395 return NULL;
1396
2a7fc5b1 1397 INIT_DELAYED_WORK(&t->dly_wrk, _brcms_timer);
5b435de0
AS		 1398 t->wl = wl;
1399 t->fn = fn;
1400 t->arg = arg;
1401 t->next = wl->timers;
1402 wl->timers = t;
1403
8ae74654 1404#ifdef DEBUG
5b435de0
AS		 1405 t->name = kmalloc(strlen(name) + 1, GFP_ATOMIC);
1406 if (t->name)
1407 strcpy(t->name, name);
1408#endif
1409
1410 return t;
1411}
1412
1413/*
1414 * adds only the kernel timer since it's going to be more accurate
1415 * as well as it's easier to make it periodic
1416 *
1417 * precondition: perimeter lock has been acquired
1418 */
2a7fc5b1 1419void brcms_add_timer(struct brcms_timer *t, uint ms, int periodic)
5b435de0 1420{
2a7fc5b1
RV		 1421 struct ieee80211_hw *hw = t->wl->pub->ieee_hw;
1422
8ae74654 1423#ifdef DEBUG
5b435de0 1424 if (t->set)
b353dda4
SF		 1425 brcms_dbg_info(t->wl->wlc->hw->d11core,
1426 "%s: Already set. Name: %s, per %d\n",
1427 __func__, t->name, periodic);
5b435de0
AS		 1428#endif
1429 t->ms = ms;
1430 t->periodic = (bool) periodic;
01486c5a
PH		 1431 if (!t->set) {
1432 t->set = true;
1433 atomic_inc(&t->wl->callbacks);
1434 }
2a7fc5b1
RV		 1435
1436 ieee80211_queue_delayed_work(hw, &t->dly_wrk, msecs_to_jiffies(ms));
5b435de0
AS		 1437}
1438
1439/*
1440 * return true if timer successfully deleted, false if still pending
1441 *
1442 * precondition: perimeter lock has been acquired
1443 */
be69c4ef 1444bool brcms_del_timer(struct brcms_timer *t)
5b435de0
AS		 1445{
1446 if (t->set) {
1447 t->set = false;
2a7fc5b1 1448 if (!cancel_delayed_work(&t->dly_wrk))
5b435de0
AS		 1449 return false;
1450
be69c4ef 1451 atomic_dec(&t->wl->callbacks);
5b435de0
AS		 1452 }
1453
1454 return true;
1455}
1456
1457/*
1458 * precondition: perimeter lock has been acquired
1459 */
be69c4ef 1460void brcms_free_timer(struct brcms_timer *t)
5b435de0 1461{
be69c4ef 1462 struct brcms_info *wl = t->wl;
5b435de0
AS		 1463 struct brcms_timer *tmp;
1464
1465 /* delete the timer in case it is active */
be69c4ef 1466 brcms_del_timer(t);
5b435de0
AS		 1467
1468 if (wl->timers == t) {
1469 wl->timers = wl->timers->next;
8ae74654 1470#ifdef DEBUG
5b435de0
AS		 1471 kfree(t->name);
1472#endif
1473 kfree(t);
1474 return;
1475
1476 }
1477
1478 tmp = wl->timers;
1479 while (tmp) {
1480 if (tmp->next == t) {
1481 tmp->next = t->next;
8ae74654 1482#ifdef DEBUG
5b435de0
AS		 1483 kfree(t->name);
1484#endif
1485 kfree(t);
1486 return;
1487 }
1488 tmp = tmp->next;
1489 }
1490
1491}
1492
1493/*
1494 * precondition: perimeter lock has been acquired
1495 */
1496int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, u32 idx)
1497{
1498 int i, entry;
1499 const u8 *pdata;
1500 struct firmware_hdr *hdr;
1501 for (i = 0; i < wl->fw.fw_cnt; i++) {
1502 hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
1503 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1504 entry++, hdr++) {
1505 u32 len = le32_to_cpu(hdr->len);
1506 if (le32_to_cpu(hdr->idx) == idx) {
1507 pdata = wl->fw.fw_bin[i]->data +
1508 le32_to_cpu(hdr->offset);
1f1d5289 1509 *pbuf = kmemdup(pdata, len, GFP_ATOMIC);
5b435de0
AS		 1510 if (*pbuf == NULL)
1511 goto fail;
1512
5b435de0
AS		 1513 return 0;
1514 }
1515 }
1516 }
b353dda4
SF		 1517 brcms_err(wl->wlc->hw->d11core,
1518 "ERROR: ucode buf tag:%d can not be found!\n", idx);
5b435de0
AS		 1519 *pbuf = NULL;
1520fail:
1521 return -ENODATA;
1522}
1523
1524/*
2e756560 1525 * Precondition: Since this function is called in brcms_bcma_probe() context,
5b435de0
AS		 1526 * no locking is required.
1527 */
1528int brcms_ucode_init_uint(struct brcms_info *wl, size_t *n_bytes, u32 idx)
1529{
1530 int i, entry;
1531 const u8 *pdata;
1532 struct firmware_hdr *hdr;
1533 for (i = 0; i < wl->fw.fw_cnt; i++) {
1534 hdr = (struct firmware_hdr *)wl->fw.fw_hdr[i]->data;
1535 for (entry = 0; entry < wl->fw.hdr_num_entries[i];
1536 entry++, hdr++) {
1537 if (le32_to_cpu(hdr->idx) == idx) {
1538 pdata = wl->fw.fw_bin[i]->data +
1539 le32_to_cpu(hdr->offset);
1540 if (le32_to_cpu(hdr->len) != 4) {
b353dda4 1541 brcms_err(wl->wlc->hw->d11core,
5b435de0
AS		 1542 "ERROR: fw hdr len\n");
1543 return -ENOMSG;
1544 }
1545 *n_bytes = le32_to_cpu(*((__le32 *) pdata));
1546 return 0;
1547 }
1548 }
1549 }
b353dda4
SF		 1550 brcms_err(wl->wlc->hw->d11core,
1551 "ERROR: ucode tag:%d can not be found!\n", idx);
5b435de0
AS		 1552 return -ENOMSG;
1553}
1554
1555/*
1556 * precondition: can both be called locked and unlocked
1557 */
1558void brcms_ucode_free_buf(void *p)
1559{
1560 kfree(p);
1561}
1562
1563/*
1564 * checks validity of all firmware images loaded from user space
1565 *
2e756560 1566 * Precondition: Since this function is called in brcms_bcma_probe() context,
5b435de0
AS		 1567 * no locking is required.
1568 */
1569int brcms_check_firmwares(struct brcms_info *wl)
1570{
1571 int i;
1572 int entry;
1573 int rc = 0;
1574 const struct firmware *fw;
1575 const struct firmware *fw_hdr;
1576 struct firmware_hdr *ucode_hdr;
1577 for (i = 0; i < MAX_FW_IMAGES && rc == 0; i++) {
1578 fw = wl->fw.fw_bin[i];
1579 fw_hdr = wl->fw.fw_hdr[i];
1580 if (fw == NULL && fw_hdr == NULL) {
1581 break;
1582 } else if (fw == NULL || fw_hdr == NULL) {
1583 wiphy_err(wl->wiphy, "%s: invalid bin/hdr fw\n",
1584 __func__);
1585 rc = -EBADF;
1586 } else if (fw_hdr->size % sizeof(struct firmware_hdr)) {
1587 wiphy_err(wl->wiphy, "%s: non integral fw hdr file "
1588 "size %zu/%zu\n", __func__, fw_hdr->size,
1589 sizeof(struct firmware_hdr));
1590 rc = -EBADF;
1591 } else if (fw->size < MIN_FW_SIZE || fw->size > MAX_FW_SIZE) {
b353dda4
SF		 1592 wiphy_err(wl->wiphy, "%s: out of bounds fw file size %zu\n",
1593 __func__, fw->size);
5b435de0
AS		 1594 rc = -EBADF;
1595 } else {
1596 /* check if ucode section overruns firmware image */
1597 ucode_hdr = (struct firmware_hdr *)fw_hdr->data;
1598 for (entry = 0; entry < wl->fw.hdr_num_entries[i] &&
1599 !rc; entry++, ucode_hdr++) {
1600 if (le32_to_cpu(ucode_hdr->offset) +
1601 le32_to_cpu(ucode_hdr->len) >
1602 fw->size) {
1603 wiphy_err(wl->wiphy,
1604 "%s: conflicting bin/hdr\n",
1605 __func__);
1606 rc = -EBADF;
1607 }
1608 }
1609 }
1610 }
1611 if (rc == 0 && wl->fw.fw_cnt != i) {
1612 wiphy_err(wl->wiphy, "%s: invalid fw_cnt=%d\n", __func__,
1613 wl->fw.fw_cnt);
1614 rc = -EBADF;
1615 }
1616 return rc;
1617}
1618
1619/*
1620 * precondition: perimeter lock has been acquired
1621 */
1622bool brcms_rfkill_set_hw_state(struct brcms_info *wl)
1623{
1624 bool blocked = brcms_c_check_radio_disabled(wl->wlc);
1625
1626 spin_unlock_bh(&wl->lock);
1627 wiphy_rfkill_set_hw_state(wl->pub->ieee_hw->wiphy, blocked);
1628 if (blocked)
1629 wiphy_rfkill_start_polling(wl->pub->ieee_hw->wiphy);
1630 spin_lock_bh(&wl->lock);
1631 return blocked;
1632}
Linux kernel - Deliverables
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