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wl12xx: AP mode - support hidden SSID
[deliverable/linux.git] / drivers / net / wireless / wl12xx / main.c
CommitLineData
f5fc0f86
LC		 1/*
2 * This file is part of wl1271
3 *
8bf29b0e 4 * Copyright (C) 2008-2010 Nokia Corporation
f5fc0f86
LC		 5 *
6 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 *
22 */
23
24#include <linux/module.h>
f5fc0f86
LC		 25#include <linux/firmware.h>
26#include <linux/delay.h>
f5fc0f86
LC		 27#include <linux/spi/spi.h>
28#include <linux/crc32.h>
29#include <linux/etherdevice.h>
1fba4974 30#include <linux/vmalloc.h>
a1dd8187 31#include <linux/platform_device.h>
5a0e3ad6 32#include <linux/slab.h>
341b7cde 33#include <linux/wl12xx.h>
95dac04f 34#include <linux/sched.h>
f5fc0f86 35
00d20100 36#include "wl12xx.h"
f5fc0f86 37#include "wl12xx_80211.h"
00d20100
SL		 38#include "reg.h"
39#include "io.h"
40#include "event.h"
41#include "tx.h"
42#include "rx.h"
43#include "ps.h"
44#include "init.h"
45#include "debugfs.h"
46#include "cmd.h"
47#include "boot.h"
48#include "testmode.h"
49#include "scan.h"
f5fc0f86 50
9ccd9217
JO		 51#define WL1271_BOOT_RETRIES 3
52
8a08048a
JO		 53static struct conf_drv_settings default_conf = {
54 .sg = {
3be4112c
EP		 55 .params = {
56 [CONF_SG_ACL_BT_MASTER_MIN_BR] = 10,
57 [CONF_SG_ACL_BT_MASTER_MAX_BR] = 180,
58 [CONF_SG_ACL_BT_SLAVE_MIN_BR] = 10,
59 [CONF_SG_ACL_BT_SLAVE_MAX_BR] = 180,
60 [CONF_SG_ACL_BT_MASTER_MIN_EDR] = 10,
61 [CONF_SG_ACL_BT_MASTER_MAX_EDR] = 80,
62 [CONF_SG_ACL_BT_SLAVE_MIN_EDR] = 10,
63 [CONF_SG_ACL_BT_SLAVE_MAX_EDR] = 80,
64 [CONF_SG_ACL_WLAN_PS_MASTER_BR] = 8,
65 [CONF_SG_ACL_WLAN_PS_SLAVE_BR] = 8,
66 [CONF_SG_ACL_WLAN_PS_MASTER_EDR] = 20,
67 [CONF_SG_ACL_WLAN_PS_SLAVE_EDR] = 20,
68 [CONF_SG_ACL_WLAN_ACTIVE_MASTER_MIN_BR] = 20,
69 [CONF_SG_ACL_WLAN_ACTIVE_MASTER_MAX_BR] = 35,
70 [CONF_SG_ACL_WLAN_ACTIVE_SLAVE_MIN_BR] = 16,
71 [CONF_SG_ACL_WLAN_ACTIVE_SLAVE_MAX_BR] = 35,
72 [CONF_SG_ACL_WLAN_ACTIVE_MASTER_MIN_EDR] = 32,
73 [CONF_SG_ACL_WLAN_ACTIVE_MASTER_MAX_EDR] = 50,
74 [CONF_SG_ACL_WLAN_ACTIVE_SLAVE_MIN_EDR] = 28,
75 [CONF_SG_ACL_WLAN_ACTIVE_SLAVE_MAX_EDR] = 50,
76 [CONF_SG_ACL_ACTIVE_SCAN_WLAN_BR] = 10,
77 [CONF_SG_ACL_ACTIVE_SCAN_WLAN_EDR] = 20,
78 [CONF_SG_ACL_PASSIVE_SCAN_BT_BR] = 75,
79 [CONF_SG_ACL_PASSIVE_SCAN_WLAN_BR] = 15,
80 [CONF_SG_ACL_PASSIVE_SCAN_BT_EDR] = 27,
81 [CONF_SG_ACL_PASSIVE_SCAN_WLAN_EDR] = 17,
82 /* active scan params */
83 [CONF_SG_AUTO_SCAN_PROBE_REQ] = 170,
84 [CONF_SG_ACTIVE_SCAN_DURATION_FACTOR_HV3] = 50,
85 [CONF_SG_ACTIVE_SCAN_DURATION_FACTOR_A2DP] = 100,
86 /* passive scan params */
87 [CONF_SG_PASSIVE_SCAN_DURATION_FACTOR_A2DP_BR] = 800,
88 [CONF_SG_PASSIVE_SCAN_DURATION_FACTOR_A2DP_EDR] = 200,
89 [CONF_SG_PASSIVE_SCAN_DURATION_FACTOR_HV3] = 200,
90 /* passive scan in dual antenna params */
91 [CONF_SG_CONSECUTIVE_HV3_IN_PASSIVE_SCAN] = 0,
92 [CONF_SG_BCN_HV3_COLLISION_THRESH_IN_PASSIVE_SCAN] = 0,
93 [CONF_SG_TX_RX_PROTECTION_BWIDTH_IN_PASSIVE_SCAN] = 0,
94 /* general params */
95 [CONF_SG_STA_FORCE_PS_IN_BT_SCO] = 1,
96 [CONF_SG_ANTENNA_CONFIGURATION] = 0,
97 [CONF_SG_BEACON_MISS_PERCENT] = 60,
98 [CONF_SG_DHCP_TIME] = 5000,
99 [CONF_SG_RXT] = 1200,
100 [CONF_SG_TXT] = 1000,
101 [CONF_SG_ADAPTIVE_RXT_TXT] = 1,
102 [CONF_SG_GENERAL_USAGE_BIT_MAP] = 3,
103 [CONF_SG_HV3_MAX_SERVED] = 6,
104 [CONF_SG_PS_POLL_TIMEOUT] = 10,
105 [CONF_SG_UPSD_TIMEOUT] = 10,
106 [CONF_SG_CONSECUTIVE_CTS_THRESHOLD] = 2,
107 [CONF_SG_STA_RX_WINDOW_AFTER_DTIM] = 5,
108 [CONF_SG_STA_CONNECTION_PROTECTION_TIME] = 30,
109 /* AP params */
110 [CONF_AP_BEACON_MISS_TX] = 3,
111 [CONF_AP_RX_WINDOW_AFTER_BEACON] = 10,
112 [CONF_AP_BEACON_WINDOW_INTERVAL] = 2,
113 [CONF_AP_CONNECTION_PROTECTION_TIME] = 0,
114 [CONF_AP_BT_ACL_VAL_BT_SERVE_TIME] = 25,
115 [CONF_AP_BT_ACL_VAL_WL_SERVE_TIME] = 25,
801f870b 116 },
1b00f546 117 .state = CONF_SG_PROTECTIVE,
8a08048a
JO		 118 },
119 .rx = {
120 .rx_msdu_life_time = 512000,
121 .packet_detection_threshold = 0,
122 .ps_poll_timeout = 15,
123 .upsd_timeout = 15,
5f704d18 124 .rts_threshold = IEEE80211_MAX_RTS_THRESHOLD,
3ed8f2c6
LC		 125 .rx_cca_threshold = 0,
126 .irq_blk_threshold = 0xFFFF,
127 .irq_pkt_threshold = 0,
128 .irq_timeout = 600,
8a08048a
JO		 129 .queue_type = CONF_RX_QUEUE_TYPE_LOW_PRIORITY,
130 },
131 .tx = {
132 .tx_energy_detection = 0,
1e05a818 133 .sta_rc_conf = {
ebba60c6 134 .enabled_rates = 0,
8a08048a
JO		 135 .short_retry_limit = 10,
136 .long_retry_limit = 10,
1e05a818 137 .aflags = 0,
45b531a8 138 },
8a08048a
JO		 139 .ac_conf_count = 4,
140 .ac_conf = {
9987a9da 141 [CONF_TX_AC_BE] = {
8a08048a
JO		 142 .ac = CONF_TX_AC_BE,
143 .cw_min = 15,
144 .cw_max = 63,
145 .aifsn = 3,
146 .tx_op_limit = 0,
45b531a8 147 },
9987a9da 148 [CONF_TX_AC_BK] = {
8a08048a
JO		 149 .ac = CONF_TX_AC_BK,
150 .cw_min = 15,
151 .cw_max = 63,
152 .aifsn = 7,
153 .tx_op_limit = 0,
45b531a8 154 },
9987a9da 155 [CONF_TX_AC_VI] = {
8a08048a
JO		 156 .ac = CONF_TX_AC_VI,
157 .cw_min = 15,
158 .cw_max = 63,
159 .aifsn = CONF_TX_AIFS_PIFS,
160 .tx_op_limit = 3008,
161 },
9987a9da 162 [CONF_TX_AC_VO] = {
8a08048a
JO		 163 .ac = CONF_TX_AC_VO,
164 .cw_min = 15,
165 .cw_max = 63,
166 .aifsn = CONF_TX_AIFS_PIFS,
167 .tx_op_limit = 1504,
45b531a8 168 },
51f2be24 169 },
3618f30f
AN		 170 .max_tx_retries = 100,
171 .ap_aging_period = 300,
9987a9da 172 .tid_conf_count = 4,
8a08048a 173 .tid_conf = {
9987a9da
JO		 174 [CONF_TX_AC_BE] = {
175 .queue_id = CONF_TX_AC_BE,
176 .channel_type = CONF_CHANNEL_TYPE_EDCF,
8a08048a
JO		 177 .tsid = CONF_TX_AC_BE,
178 .ps_scheme = CONF_PS_SCHEME_LEGACY,
179 .ack_policy = CONF_ACK_POLICY_LEGACY,
180 .apsd_conf = {0, 0},
51f2be24 181 },
9987a9da
JO		 182 [CONF_TX_AC_BK] = {
183 .queue_id = CONF_TX_AC_BK,
184 .channel_type = CONF_CHANNEL_TYPE_EDCF,
185 .tsid = CONF_TX_AC_BK,
8a08048a
JO		 186 .ps_scheme = CONF_PS_SCHEME_LEGACY,
187 .ack_policy = CONF_ACK_POLICY_LEGACY,
188 .apsd_conf = {0, 0},
189 },
9987a9da
JO		 190 [CONF_TX_AC_VI] = {
191 .queue_id = CONF_TX_AC_VI,
192 .channel_type = CONF_CHANNEL_TYPE_EDCF,
193 .tsid = CONF_TX_AC_VI,
8a08048a
JO		 194 .ps_scheme = CONF_PS_SCHEME_LEGACY,
195 .ack_policy = CONF_ACK_POLICY_LEGACY,
196 .apsd_conf = {0, 0},
197 },
9987a9da
JO		 198 [CONF_TX_AC_VO] = {
199 .queue_id = CONF_TX_AC_VO,
200 .channel_type = CONF_CHANNEL_TYPE_EDCF,
201 .tsid = CONF_TX_AC_VO,
8a08048a
JO		 202 .ps_scheme = CONF_PS_SCHEME_LEGACY,
203 .ack_policy = CONF_ACK_POLICY_LEGACY,
204 .apsd_conf = {0, 0},
205 },
8a08048a
JO		 206 },
207 .frag_threshold = IEEE80211_MAX_FRAG_THRESHOLD,
3ed8f2c6 208 .tx_compl_timeout = 700,
ebba60c6
JO		 209 .tx_compl_threshold = 4,
210 .basic_rate = CONF_HW_BIT_RATE_1MBPS,
211 .basic_rate_5 = CONF_HW_BIT_RATE_6MBPS,
1e05a818
AN		 212 .tmpl_short_retry_limit = 10,
213 .tmpl_long_retry_limit = 10,
8a08048a
JO		 214 },
215 .conn = {
216 .wake_up_event = CONF_WAKE_UP_EVENT_DTIM,
50c500ad 217 .listen_interval = 1,
8a08048a 218 .bcn_filt_mode = CONF_BCN_FILT_MODE_ENABLED,
bc76b940 219 .bcn_filt_ie_count = 2,
8a08048a
JO		 220 .bcn_filt_ie = {
221 [0] = {
222 .ie = WLAN_EID_CHANNEL_SWITCH,
223 .rule = CONF_BCN_RULE_PASS_ON_APPEARANCE,
bc76b940
SL		 224 },
225 [1] = {
226 .ie = WLAN_EID_HT_INFORMATION,
227 .rule = CONF_BCN_RULE_PASS_ON_CHANGE,
228 },
47fab7d5 229 },
3ed8f2c6 230 .synch_fail_thold = 10,
8a08048a
JO		 231 .bss_lose_timeout = 100,
232 .beacon_rx_timeout = 10000,
233 .broadcast_timeout = 20000,
234 .rx_broadcast_in_ps = 1,
90494a90
JO		 235 .ps_poll_threshold = 10,
236 .ps_poll_recovery_period = 700,
11f70f97 237 .bet_enable = CONF_BET_MODE_ENABLE,
958b20e0 238 .bet_max_consecutive = 50,
a879ed79 239 .psm_entry_retries = 8,
2370841b 240 .psm_exit_retries = 16,
8eab7b47 241 .psm_entry_nullfunc_retries = 3,
50c500ad
JO		 242 .keep_alive_interval = 55000,
243 .max_listen_interval = 20,
8a08048a 244 },
6e92b416
LC		 245 .itrim = {
246 .enable = false,
247 .timeout = 50000,
38ad2d87
JO		 248 },
249 .pm_config = {
250 .host_clk_settling_time = 5000,
251 .host_fast_wakeup_support = false
00236aed
JO		 252 },
253 .roam_trigger = {
00236aed
JO		 254 .trigger_pacing = 1,
255 .avg_weight_rssi_beacon = 20,
256 .avg_weight_rssi_data = 10,
257 .avg_weight_snr_beacon = 20,
4b7fac77 258 .avg_weight_snr_data = 10,
bea39d6a
JO		 259 },
260 .scan = {
261 .min_dwell_time_active = 7500,
262 .max_dwell_time_active = 30000,
ea45b2cb
JO		 263 .min_dwell_time_passive = 100000,
264 .max_dwell_time_passive = 100000,
bea39d6a
JO		 265 .num_probe_reqs = 2,
266 },
3a9d60e5
LC		 267 .sched_scan = {
268 /* sched_scan requires dwell times in TU instead of TU/1000 */
221737d2
LC		 269 .min_dwell_time_active = 30,
270 .max_dwell_time_active = 60,
3a9d60e5 271 .dwell_time_passive = 100,
50a66d7f 272 .dwell_time_dfs = 150,
3a9d60e5
LC		 273 .num_probe_reqs = 2,
274 .rssi_threshold = -90,
275 .snr_threshold = 0,
276 },
644a4860
JO		 277 .rf = {
278 .tx_per_channel_power_compensation_2 = {
279 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
280 },
281 .tx_per_channel_power_compensation_5 = {
282 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
283 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
284 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
285 },
286 },
4b7fac77 287 .ht = {
0f9c8250 288 .rx_ba_win_size = 8,
4b7fac77
LS		 289 .tx_ba_win_size = 64,
290 .inactivity_timeout = 10000,
0f9c8250 291 .tx_ba_tid_bitmap = CONF_TX_BA_ENABLED_TID_BITMAP,
4b7fac77 292 },
13b107dd 293 .mem_wl127x = {
fe5ef090
EP		 294 .num_stations = 1,
295 .ssid_profiles = 1,
296 .rx_block_num = 70,
297 .tx_min_block_num = 40,
4cf557fc 298 .dynamic_memory = 1,
b16d4b68 299 .min_req_tx_blocks = 100,
c8bde243
EP		 300 .min_req_rx_blocks = 22,
301 .tx_min = 27,
13b107dd
SL		 302 },
303 .mem_wl128x = {
304 .num_stations = 1,
305 .ssid_profiles = 1,
306 .rx_block_num = 40,
307 .tx_min_block_num = 40,
308 .dynamic_memory = 1,
309 .min_req_tx_blocks = 45,
310 .min_req_rx_blocks = 22,
311 .tx_min = 27,
312 },
ff86843d
SL		 313 .fm_coex = {
314 .enable = true,
315 .swallow_period = 5,
316 .n_divider_fref_set_1 = 0xff, /* default */
317 .n_divider_fref_set_2 = 12,
318 .m_divider_fref_set_1 = 148,
319 .m_divider_fref_set_2 = 0xffff, /* default */
320 .coex_pll_stabilization_time = 0xffffffff, /* default */
321 .ldo_stabilization_time = 0xffff, /* default */
322 .fm_disturbed_band_margin = 0xff, /* default */
323 .swallow_clk_diff = 0xff, /* default */
324 },
f84673d5
EP		 325 .rx_streaming = {
326 .duration = 150,
327 .queues = 0x1,
328 .interval = 20,
77ddaa10 329 .always = 0,
f84673d5 330 },
95dac04f
IY		 331 .fwlog = {
332 .mode = WL12XX_FWLOG_ON_DEMAND,
333 .mem_blocks = 2,
334 .severity = 0,
335 .timestamp = WL12XX_FWLOG_TIMESTAMP_DISABLED,
336 .output = WL12XX_FWLOG_OUTPUT_HOST,
337 .threshold = 0,
338 },
afb7d3cd 339 .hci_io_ds = HCI_IO_DS_6MA,
fa6ad9f0
EP		 340 .rate = {
341 .rate_retry_score = 32000,
342 .per_add = 8192,
343 .per_th1 = 2048,
344 .per_th2 = 4096,
345 .max_per = 8100,
346 .inverse_curiosity_factor = 5,
347 .tx_fail_low_th = 4,
348 .tx_fail_high_th = 10,
349 .per_alpha_shift = 4,
350 .per_add_shift = 13,
351 .per_beta1_shift = 10,
352 .per_beta2_shift = 8,
353 .rate_check_up = 2,
354 .rate_check_down = 12,
355 .rate_retry_policy = {
356 0x00, 0x00, 0x00, 0x00, 0x00,
357 0x00, 0x00, 0x00, 0x00, 0x00,
358 0x00, 0x00, 0x00,
359 },
360 },
9487775c
EP		 361 .hangover = {
362 .recover_time = 0,
363 .hangover_period = 20,
364 .dynamic_mode = 1,
365 .early_termination_mode = 1,
366 .max_period = 20,
367 .min_period = 1,
368 .increase_delta = 1,
369 .decrease_delta = 2,
370 .quiet_time = 4,
371 .increase_time = 1,
372 .window_size = 16,
373 },
8a08048a
JO		 374};
375
95dac04f 376static char *fwlog_param;
2a5bff09 377static bool bug_on_recovery;
95dac04f 378
7dece1c8
AN		 379static void __wl1271_op_remove_interface(struct wl1271 *wl,
380 bool reset_tx_queues);
7f179b46 381static void wl1271_free_ap_keys(struct wl1271 *wl);
52b0e7a6
JO		 382
383
a1dd8187
JO		 384static void wl1271_device_release(struct device *dev)
385{
386
387}
388
389static struct platform_device wl1271_device = {
390 .name = "wl1271",
391 .id = -1,
392
393 /* device model insists to have a release function */
394 .dev = {
395 .release = wl1271_device_release,
396 },
397};
398
f9f774c1 399static DEFINE_MUTEX(wl_list_mutex);
01c09162
JO		 400static LIST_HEAD(wl_list);
401
ef4b29e9
EP		 402static int wl1271_check_operstate(struct wl1271 *wl, unsigned char operstate)
403{
404 int ret;
405 if (operstate != IF_OPER_UP)
406 return 0;
407
408 if (test_and_set_bit(WL1271_FLAG_STA_STATE_SENT, &wl->flags))
409 return 0;
410
b67476ef 411 ret = wl12xx_cmd_set_peer_state(wl, wl->sta_hlid);
ef4b29e9
EP		 412 if (ret < 0)
413 return ret;
414
251c177f
EP		 415 wl12xx_croc(wl, wl->role_id);
416
ef4b29e9
EP		 417 wl1271_info("Association completed.");
418 return 0;
419}
c2c192ac
JO		 420static int wl1271_dev_notify(struct notifier_block *me, unsigned long what,
421 void *arg)
422{
423 struct net_device *dev = arg;
424 struct wireless_dev *wdev;
425 struct wiphy *wiphy;
426 struct ieee80211_hw *hw;
427 struct wl1271 *wl;
428 struct wl1271 *wl_temp;
429 int ret = 0;
430
431 /* Check that this notification is for us. */
432 if (what != NETDEV_CHANGE)
433 return NOTIFY_DONE;
434
435 wdev = dev->ieee80211_ptr;
436 if (wdev == NULL)
437 return NOTIFY_DONE;
438
439 wiphy = wdev->wiphy;
440 if (wiphy == NULL)
441 return NOTIFY_DONE;
442
443 hw = wiphy_priv(wiphy);
444 if (hw == NULL)
445 return NOTIFY_DONE;
446
447 wl_temp = hw->priv;
f9f774c1 448 mutex_lock(&wl_list_mutex);
c2c192ac
JO		 449 list_for_each_entry(wl, &wl_list, list) {
450 if (wl == wl_temp)
451 break;
452 }
f9f774c1 453 mutex_unlock(&wl_list_mutex);
c2c192ac
JO		 454 if (wl != wl_temp)
455 return NOTIFY_DONE;
456
457 mutex_lock(&wl->mutex);
458
459 if (wl->state == WL1271_STATE_OFF)
460 goto out;
461
462 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
463 goto out;
464
a620865e 465 ret = wl1271_ps_elp_wakeup(wl);
c2c192ac
JO		 466 if (ret < 0)
467 goto out;
468
ef4b29e9 469 wl1271_check_operstate(wl, dev->operstate);
c2c192ac
JO		 470
471 wl1271_ps_elp_sleep(wl);
472
473out:
474 mutex_unlock(&wl->mutex);
475
476 return NOTIFY_OK;
477}
478
b7417d93 479static int wl1271_reg_notify(struct wiphy *wiphy,
573c67cf
LC		 480 struct regulatory_request *request)
481{
b7417d93
JO		 482 struct ieee80211_supported_band *band;
483 struct ieee80211_channel *ch;
484 int i;
485
486 band = wiphy->bands[IEEE80211_BAND_5GHZ];
487 for (i = 0; i < band->n_channels; i++) {
488 ch = &band->channels[i];
489 if (ch->flags & IEEE80211_CHAN_DISABLED)
490 continue;
491
492 if (ch->flags & IEEE80211_CHAN_RADAR)
493 ch->flags |= IEEE80211_CHAN_NO_IBSS |
494 IEEE80211_CHAN_PASSIVE_SCAN;
495
496 }
497
498 return 0;
499}
500
77ddaa10
EP		 501static int wl1271_set_rx_streaming(struct wl1271 *wl, bool enable)
502{
503 int ret = 0;
504
505 /* we should hold wl->mutex */
506 ret = wl1271_acx_ps_rx_streaming(wl, enable);
507 if (ret < 0)
508 goto out;
509
510 if (enable)
511 set_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags);
512 else
513 clear_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags);
514out:
515 return ret;
516}
517
518/*
519 * this function is being called when the rx_streaming interval
520 * has beed changed or rx_streaming should be disabled
521 */
522int wl1271_recalc_rx_streaming(struct wl1271 *wl)
523{
524 int ret = 0;
525 int period = wl->conf.rx_streaming.interval;
526
527 /* don't reconfigure if rx_streaming is disabled */
528 if (!test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags))
529 goto out;
530
531 /* reconfigure/disable according to new streaming_period */
532 if (period &&
533 test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags) &&
534 (wl->conf.rx_streaming.always ||
535 test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags)))
536 ret = wl1271_set_rx_streaming(wl, true);
537 else {
538 ret = wl1271_set_rx_streaming(wl, false);
539 /* don't cancel_work_sync since we might deadlock */
540 del_timer_sync(&wl->rx_streaming_timer);
541 }
542out:
543 return ret;
544}
545
546static void wl1271_rx_streaming_enable_work(struct work_struct *work)
547{
548 int ret;
549 struct wl1271 *wl =
550 container_of(work, struct wl1271, rx_streaming_enable_work);
551
552 mutex_lock(&wl->mutex);
553
554 if (test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags) ||
555 !test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags) ||
556 (!wl->conf.rx_streaming.always &&
557 !test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags)))
558 goto out;
559
560 if (!wl->conf.rx_streaming.interval)
561 goto out;
562
563 ret = wl1271_ps_elp_wakeup(wl);
564 if (ret < 0)
565 goto out;
566
567 ret = wl1271_set_rx_streaming(wl, true);
568 if (ret < 0)
569 goto out_sleep;
570
571 /* stop it after some time of inactivity */
572 mod_timer(&wl->rx_streaming_timer,
573 jiffies + msecs_to_jiffies(wl->conf.rx_streaming.duration));
574
575out_sleep:
576 wl1271_ps_elp_sleep(wl);
577out:
578 mutex_unlock(&wl->mutex);
579}
580
581static void wl1271_rx_streaming_disable_work(struct work_struct *work)
582{
583 int ret;
584 struct wl1271 *wl =
585 container_of(work, struct wl1271, rx_streaming_disable_work);
586
587 mutex_lock(&wl->mutex);
588
589 if (!test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags))
590 goto out;
591
592 ret = wl1271_ps_elp_wakeup(wl);
593 if (ret < 0)
594 goto out;
595
596 ret = wl1271_set_rx_streaming(wl, false);
597 if (ret)
598 goto out_sleep;
599
600out_sleep:
601 wl1271_ps_elp_sleep(wl);
602out:
603 mutex_unlock(&wl->mutex);
604}
605
606static void wl1271_rx_streaming_timer(unsigned long data)
607{
608 struct wl1271 *wl = (struct wl1271 *)data;
609 ieee80211_queue_work(wl->hw, &wl->rx_streaming_disable_work);
610}
611
8a08048a
JO		 612static void wl1271_conf_init(struct wl1271 *wl)
613{
2b60100b
JO		 614
615 /*
616 * This function applies the default configuration to the driver. This
617 * function is invoked upon driver load (spi probe.)
618 *
619 * The configuration is stored in a run-time structure in order to
620 * facilitate for run-time adjustment of any of the parameters. Making
621 * changes to the configuration structure will apply the new values on
622 * the next interface up (wl1271_op_start.)
623 */
624
625 /* apply driver default configuration */
8a08048a 626 memcpy(&wl->conf, &default_conf, sizeof(default_conf));
2b60100b 627
95dac04f
IY		 628 /* Adjust settings according to optional module parameters */
629 if (fwlog_param) {
630 if (!strcmp(fwlog_param, "continuous")) {
631 wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS;
632 } else if (!strcmp(fwlog_param, "ondemand")) {
633 wl->conf.fwlog.mode = WL12XX_FWLOG_ON_DEMAND;
634 } else if (!strcmp(fwlog_param, "dbgpins")) {
635 wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS;
636 wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_DBG_PINS;
637 } else if (!strcmp(fwlog_param, "disable")) {
638 wl->conf.fwlog.mem_blocks = 0;
639 wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_NONE;
640 } else {
641 wl1271_error("Unknown fwlog parameter %s", fwlog_param);
642 }
643 }
644}
2b60100b 645
f5fc0f86
LC		 646static int wl1271_plt_init(struct wl1271 *wl)
647{
12419cce
LC		 648 struct conf_tx_ac_category *conf_ac;
649 struct conf_tx_tid *conf_tid;
650 int ret, i;
f5fc0f86 651
49d750ca
SL		 652 if (wl->chip.id == CHIP_ID_1283_PG20)
653 ret = wl128x_cmd_general_parms(wl);
654 else
655 ret = wl1271_cmd_general_parms(wl);
4a90406b 656 if (ret < 0)
cc7defa3
LC		 657 return ret;
658
49d750ca
SL		 659 if (wl->chip.id == CHIP_ID_1283_PG20)
660 ret = wl128x_cmd_radio_parms(wl);
661 else
662 ret = wl1271_cmd_radio_parms(wl);
4a90406b 663 if (ret < 0)
cc7defa3
LC		 664 return ret;
665
49d750ca
SL		 666 if (wl->chip.id != CHIP_ID_1283_PG20) {
667 ret = wl1271_cmd_ext_radio_parms(wl);
668 if (ret < 0)
669 return ret;
670 }
644a4860
JO		 671 if (ret < 0)
672 return ret;
673
48a61477
SL		 674 /* Chip-specific initializations */
675 ret = wl1271_chip_specific_init(wl);
676 if (ret < 0)
677 return ret;
678
e0fe371b 679 ret = wl1271_sta_init_templates_config(wl);
12419cce
LC		 680 if (ret < 0)
681 return ret;
682
f5fc0f86
LC		 683 ret = wl1271_acx_init_mem_config(wl);
684 if (ret < 0)
685 return ret;
686
12419cce
LC		 687 /* PHY layer config */
688 ret = wl1271_init_phy_config(wl);
689 if (ret < 0)
690 goto out_free_memmap;
691
692 ret = wl1271_acx_dco_itrim_params(wl);
693 if (ret < 0)
694 goto out_free_memmap;
695
696 /* Initialize connection monitoring thresholds */
6ccbb92e 697 ret = wl1271_acx_conn_monit_params(wl, false);
12419cce
LC		 698 if (ret < 0)
699 goto out_free_memmap;
700
701 /* Bluetooth WLAN coexistence */
702 ret = wl1271_init_pta(wl);
703 if (ret < 0)
704 goto out_free_memmap;
705
ff86843d
SL		 706 /* FM WLAN coexistence */
707 ret = wl1271_acx_fm_coex(wl);
708 if (ret < 0)
709 goto out_free_memmap;
710
12419cce
LC		 711 /* Energy detection */
712 ret = wl1271_init_energy_detection(wl);
713 if (ret < 0)
714 goto out_free_memmap;
715
7f097988 716 ret = wl12xx_acx_mem_cfg(wl);
1ec610eb
GK		 717 if (ret < 0)
718 goto out_free_memmap;
719
12419cce 720 /* Default fragmentation threshold */
68d069c4 721 ret = wl1271_acx_frag_threshold(wl, wl->conf.tx.frag_threshold);
12419cce
LC		 722 if (ret < 0)
723 goto out_free_memmap;
724
9987a9da
JO		 725 /* Default TID/AC configuration */
726 BUG_ON(wl->conf.tx.tid_conf_count != wl->conf.tx.ac_conf_count);
12419cce 727 for (i = 0; i < wl->conf.tx.tid_conf_count; i++) {
9987a9da
JO		 728 conf_ac = &wl->conf.tx.ac_conf[i];
729 ret = wl1271_acx_ac_cfg(wl, conf_ac->ac, conf_ac->cw_min,
730 conf_ac->cw_max, conf_ac->aifsn,
731 conf_ac->tx_op_limit);
732 if (ret < 0)
733 goto out_free_memmap;
734
12419cce
LC		 735 conf_tid = &wl->conf.tx.tid_conf[i];
736 ret = wl1271_acx_tid_cfg(wl, conf_tid->queue_id,
737 conf_tid->channel_type,
738 conf_tid->tsid,
739 conf_tid->ps_scheme,
740 conf_tid->ack_policy,
741 conf_tid->apsd_conf[0],
742 conf_tid->apsd_conf[1]);
743 if (ret < 0)
744 goto out_free_memmap;
745 }
746
12419cce 747 /* Enable data path */
94210897 748 ret = wl1271_cmd_data_path(wl, 1);
f5fc0f86 749 if (ret < 0)
12419cce
LC		 750 goto out_free_memmap;
751
752 /* Configure for CAM power saving (ie. always active) */
753 ret = wl1271_acx_sleep_auth(wl, WL1271_PSM_CAM);
754 if (ret < 0)
755 goto out_free_memmap;
756
757 /* configure PM */
758 ret = wl1271_acx_pm_config(wl);
759 if (ret < 0)
760 goto out_free_memmap;
f5fc0f86
LC		 761
762 return 0;
12419cce
LC		 763
764 out_free_memmap:
765 kfree(wl->target_mem_map);
766 wl->target_mem_map = NULL;
767
768 return ret;
f5fc0f86
LC		 769}
770
9b17f1b3 771static void wl12xx_irq_ps_regulate_link(struct wl1271 *wl, u8 hlid, u8 tx_pkts)
b622d992 772{
da03209e 773 bool fw_ps, single_sta;
b622d992
AN		 774
775 /* only regulate station links */
776 if (hlid < WL1271_AP_STA_HLID_START)
777 return;
778
779 fw_ps = test_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
da03209e 780 single_sta = (wl->active_sta_count == 1);
b622d992
AN		 781
782 /*
783 * Wake up from high level PS if the STA is asleep with too little
9b17f1b3 784 * packets in FW or if the STA is awake.
b622d992 785 */
9b17f1b3 786 if (!fw_ps || tx_pkts < WL1271_PS_STA_MAX_PACKETS)
b622d992
AN		 787 wl1271_ps_link_end(wl, hlid);
788
da03209e
AN		 789 /*
790 * Start high-level PS if the STA is asleep with enough blocks in FW.
791 * Make an exception if this is the only connected station. In this
792 * case FW-memory congestion is not a problem.
793 */
794 else if (!single_sta && fw_ps && tx_pkts >= WL1271_PS_STA_MAX_PACKETS)
b622d992
AN		 795 wl1271_ps_link_start(wl, hlid, true);
796}
797
9b17f1b3
AN		 798bool wl1271_is_active_sta(struct wl1271 *wl, u8 hlid)
799{
04216da3
AN		 800 int id;
801
802 /* global/broadcast "stations" are always active */
803 if (hlid < WL1271_AP_STA_HLID_START)
804 return true;
805
806 id = hlid - WL1271_AP_STA_HLID_START;
9b17f1b3
AN		 807 return test_bit(id, wl->ap_hlid_map);
808}
809
810static void wl12xx_irq_update_links_status(struct wl1271 *wl,
811 struct wl12xx_fw_status *status)
b622d992
AN		 812{
813 u32 cur_fw_ps_map;
9b17f1b3
AN		 814 u8 hlid, cnt;
815
816 /* TODO: also use link_fast_bitmap here */
b622d992
AN		 817
818 cur_fw_ps_map = le32_to_cpu(status->link_ps_bitmap);
819 if (wl->ap_fw_ps_map != cur_fw_ps_map) {
820 wl1271_debug(DEBUG_PSM,
821 "link ps prev 0x%x cur 0x%x changed 0x%x",
822 wl->ap_fw_ps_map, cur_fw_ps_map,
823 wl->ap_fw_ps_map ^ cur_fw_ps_map);
824
825 wl->ap_fw_ps_map = cur_fw_ps_map;
826 }
827
828 for (hlid = WL1271_AP_STA_HLID_START; hlid < AP_MAX_LINKS; hlid++) {
9b17f1b3
AN		 829 if (!wl1271_is_active_sta(wl, hlid))
830 continue;
b622d992 831
9b17f1b3
AN		 832 cnt = status->tx_lnk_free_pkts[hlid] -
833 wl->links[hlid].prev_freed_pkts;
b622d992 834
9b17f1b3
AN		 835 wl->links[hlid].prev_freed_pkts =
836 status->tx_lnk_free_pkts[hlid];
837 wl->links[hlid].allocated_pkts -= cnt;
838
839 wl12xx_irq_ps_regulate_link(wl, hlid,
840 wl->links[hlid].allocated_pkts);
b622d992
AN		 841 }
842}
843
4d56ad9c
EP		 844static void wl12xx_fw_status(struct wl1271 *wl,
845 struct wl12xx_fw_status *status)
f5fc0f86 846{
ac5e1e39 847 struct timespec ts;
13b107dd 848 u32 old_tx_blk_count = wl->tx_blocks_available;
4d56ad9c 849 int avail, freed_blocks;
bf54e301 850 int i;
f5fc0f86 851
4d56ad9c 852 wl1271_raw_read(wl, FW_STATUS_ADDR, status, sizeof(*status), false);
13b107dd 853
f5fc0f86
LC		 854 wl1271_debug(DEBUG_IRQ, "intr: 0x%x (fw_rx_counter = %d, "
855 "drv_rx_counter = %d, tx_results_counter = %d)",
856 status->intr,
857 status->fw_rx_counter,
858 status->drv_rx_counter,
859 status->tx_results_counter);
860
bf54e301
AN		 861 for (i = 0; i < NUM_TX_QUEUES; i++) {
862 /* prevent wrap-around in freed-packets counter */
742246f8 863 wl->tx_allocated_pkts[i] -=
bf54e301
AN		 864 (status->tx_released_pkts[i] -
865 wl->tx_pkts_freed[i]) & 0xff;
866
867 wl->tx_pkts_freed[i] = status->tx_released_pkts[i];
868 }
869
bdf91cfa
AN		 870 /* prevent wrap-around in total blocks counter */
871 if (likely(wl->tx_blocks_freed <=
872 le32_to_cpu(status->total_released_blks)))
873 freed_blocks = le32_to_cpu(status->total_released_blks) -
874 wl->tx_blocks_freed;
875 else
876 freed_blocks = 0x100000000LL - wl->tx_blocks_freed +
877 le32_to_cpu(status->total_released_blks);
878
4d56ad9c 879 wl->tx_blocks_freed = le32_to_cpu(status->total_released_blks);
13b107dd 880
7bb5d6ce
AN		 881 wl->tx_allocated_blocks -= freed_blocks;
882
4d56ad9c 883 avail = le32_to_cpu(status->tx_total) - wl->tx_allocated_blocks;
13b107dd 884
4d56ad9c
EP		 885 /*
886 * The FW might change the total number of TX memblocks before
887 * we get a notification about blocks being released. Thus, the
888 * available blocks calculation might yield a temporary result
889 * which is lower than the actual available blocks. Keeping in
890 * mind that only blocks that were allocated can be moved from
891 * TX to RX, tx_blocks_available should never decrease here.
892 */
893 wl->tx_blocks_available = max((int)wl->tx_blocks_available,
894 avail);
f5fc0f86 895
a522550a 896 /* if more blocks are available now, tx work can be scheduled */
13b107dd 897 if (wl->tx_blocks_available > old_tx_blk_count)
a522550a 898 clear_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags);
f5fc0f86 899
4d56ad9c 900 /* for AP update num of allocated TX blocks per link and ps status */
9b17f1b3
AN		 901 if (wl->bss_type == BSS_TYPE_AP_BSS)
902 wl12xx_irq_update_links_status(wl, status);
4d56ad9c 903
f5fc0f86 904 /* update the host-chipset time offset */
ac5e1e39
JO		 905 getnstimeofday(&ts);
906 wl->time_offset = (timespec_to_ns(&ts) >> 10) -
907 (s64)le32_to_cpu(status->fw_localtime);
f5fc0f86
LC		 908}
909
a620865e
IY		 910static void wl1271_flush_deferred_work(struct wl1271 *wl)
911{
912 struct sk_buff *skb;
913
914 /* Pass all received frames to the network stack */
915 while ((skb = skb_dequeue(&wl->deferred_rx_queue)))
916 ieee80211_rx_ni(wl->hw, skb);
917
918 /* Return sent skbs to the network stack */
919 while ((skb = skb_dequeue(&wl->deferred_tx_queue)))
c27d3acc 920 ieee80211_tx_status_ni(wl->hw, skb);
a620865e
IY		 921}
922
923static void wl1271_netstack_work(struct work_struct *work)
924{
925 struct wl1271 *wl =
926 container_of(work, struct wl1271, netstack_work);
927
928 do {
929 wl1271_flush_deferred_work(wl);
930 } while (skb_queue_len(&wl->deferred_rx_queue));
931}
1e73eb62 932
a620865e
IY		 933#define WL1271_IRQ_MAX_LOOPS 256
934
935irqreturn_t wl1271_irq(int irq, void *cookie)
f5fc0f86 936{
f5fc0f86 937 int ret;
c15f63bf 938 u32 intr;
1e73eb62 939 int loopcount = WL1271_IRQ_MAX_LOOPS;
a620865e
IY		 940 struct wl1271 *wl = (struct wl1271 *)cookie;
941 bool done = false;
942 unsigned int defer_count;
b07d4037
IY		 943 unsigned long flags;
944
945 /* TX might be handled here, avoid redundant work */
946 set_bit(WL1271_FLAG_TX_PENDING, &wl->flags);
947 cancel_work_sync(&wl->tx_work);
f5fc0f86 948
341b7cde
IY		 949 /*
950 * In case edge triggered interrupt must be used, we cannot iterate
951 * more than once without introducing race conditions with the hardirq.
952 */
953 if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
954 loopcount = 1;
955
f5fc0f86
LC		 956 mutex_lock(&wl->mutex);
957
958 wl1271_debug(DEBUG_IRQ, "IRQ work");
959
1e73eb62 960 if (unlikely(wl->state == WL1271_STATE_OFF))
f5fc0f86
LC		 961 goto out;
962
a620865e 963 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 964 if (ret < 0)
965 goto out;
966
a620865e
IY		 967 while (!done && loopcount--) {
968 /*
969 * In order to avoid a race with the hardirq, clear the flag
970 * before acknowledging the chip. Since the mutex is held,
971 * wl1271_ps_elp_wakeup cannot be called concurrently.
972 */
973 clear_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags);
974 smp_mb__after_clear_bit();
1e73eb62 975
4d56ad9c
EP		 976 wl12xx_fw_status(wl, wl->fw_status);
977 intr = le32_to_cpu(wl->fw_status->intr);
a620865e 978 intr &= WL1271_INTR_MASK;
1e73eb62 979 if (!intr) {
a620865e 980 done = true;
1e73eb62
JO		 981 continue;
982 }
f5fc0f86 983
ccc83b04
EP		 984 if (unlikely(intr & WL1271_ACX_INTR_WATCHDOG)) {
985 wl1271_error("watchdog interrupt received! "
986 "starting recovery.");
baacb9ae 987 wl12xx_queue_recovery_work(wl);
ccc83b04
EP		 988
989 /* restarting the chip. ignore any other interrupt. */
990 goto out;
991 }
992
a620865e 993 if (likely(intr & WL1271_ACX_INTR_DATA)) {
1e73eb62 994 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_DATA");
1fd2794f 995
4d56ad9c 996 wl12xx_rx(wl, wl->fw_status);
f5fc0f86 997
a522550a 998 /* Check if any tx blocks were freed */
b07d4037 999 spin_lock_irqsave(&wl->wl_lock, flags);
a522550a 1000 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
f1a46384 1001 wl1271_tx_total_queue_count(wl) > 0) {
b07d4037 1002 spin_unlock_irqrestore(&wl->wl_lock, flags);
a522550a
IY		 1003 /*
1004 * In order to avoid starvation of the TX path,
1005 * call the work function directly.
1006 */
1007 wl1271_tx_work_locked(wl);
b07d4037
IY		 1008 } else {
1009 spin_unlock_irqrestore(&wl->wl_lock, flags);
a522550a
IY		 1010 }
1011
8aad2464 1012 /* check for tx results */
4d56ad9c 1013 if (wl->fw_status->tx_results_counter !=
8aad2464
IY		 1014 (wl->tx_results_count & 0xff))
1015 wl1271_tx_complete(wl);
a620865e
IY		 1016
1017 /* Make sure the deferred queues don't get too long */
1018 defer_count = skb_queue_len(&wl->deferred_tx_queue) +
1019 skb_queue_len(&wl->deferred_rx_queue);
1020 if (defer_count > WL1271_DEFERRED_QUEUE_LIMIT)
1021 wl1271_flush_deferred_work(wl);
1e73eb62 1022 }
f5fc0f86 1023
1e73eb62
JO		 1024 if (intr & WL1271_ACX_INTR_EVENT_A) {
1025 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_A");
1026 wl1271_event_handle(wl, 0);
1027 }
f5fc0f86 1028
1e73eb62
JO		 1029 if (intr & WL1271_ACX_INTR_EVENT_B) {
1030 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_B");
1031 wl1271_event_handle(wl, 1);
1032 }
f5fc0f86 1033
1e73eb62
JO		 1034 if (intr & WL1271_ACX_INTR_INIT_COMPLETE)
1035 wl1271_debug(DEBUG_IRQ,
1036 "WL1271_ACX_INTR_INIT_COMPLETE");
f5fc0f86 1037
1e73eb62
JO		 1038 if (intr & WL1271_ACX_INTR_HW_AVAILABLE)
1039 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_HW_AVAILABLE");
c15f63bf 1040 }
f5fc0f86 1041
f5fc0f86
LC		 1042 wl1271_ps_elp_sleep(wl);
1043
1044out:
b07d4037
IY		 1045 spin_lock_irqsave(&wl->wl_lock, flags);
1046 /* In case TX was not handled here, queue TX work */
1047 clear_bit(WL1271_FLAG_TX_PENDING, &wl->flags);
1048 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
f1a46384 1049 wl1271_tx_total_queue_count(wl) > 0)
b07d4037
IY		 1050 ieee80211_queue_work(wl->hw, &wl->tx_work);
1051 spin_unlock_irqrestore(&wl->wl_lock, flags);
1052
f5fc0f86 1053 mutex_unlock(&wl->mutex);
a620865e
IY		 1054
1055 return IRQ_HANDLED;
f5fc0f86 1056}
a620865e 1057EXPORT_SYMBOL_GPL(wl1271_irq);
f5fc0f86 1058
f5fc0f86
LC		 1059static int wl1271_fetch_firmware(struct wl1271 *wl)
1060{
1061 const struct firmware *fw;
166d504e 1062 const char *fw_name;
f5fc0f86
LC		 1063 int ret;
1064
c302b2c9
AN		 1065 if (wl->chip.id == CHIP_ID_1283_PG20)
1066 fw_name = WL128X_FW_NAME;
1067 else
1068 fw_name = WL127X_FW_NAME;
166d504e
AN		 1069
1070 wl1271_debug(DEBUG_BOOT, "booting firmware %s", fw_name);
1071
1072 ret = request_firmware(&fw, fw_name, wl1271_wl_to_dev(wl));
f5fc0f86
LC		 1073
1074 if (ret < 0) {
1075 wl1271_error("could not get firmware: %d", ret);
1076 return ret;
1077 }
1078
1079 if (fw->size % 4) {
1080 wl1271_error("firmware size is not multiple of 32 bits: %zu",
1081 fw->size);
1082 ret = -EILSEQ;
1083 goto out;
1084 }
1085
166d504e 1086 vfree(wl->fw);
f5fc0f86 1087 wl->fw_len = fw->size;
1fba4974 1088 wl->fw = vmalloc(wl->fw_len);
f5fc0f86
LC		 1089
1090 if (!wl->fw) {
1091 wl1271_error("could not allocate memory for the firmware");
1092 ret = -ENOMEM;
1093 goto out;
1094 }
1095
1096 memcpy(wl->fw, fw->data, wl->fw_len);
f5fc0f86
LC		 1097 ret = 0;
1098
1099out:
1100 release_firmware(fw);
1101
1102 return ret;
1103}
1104
1105static int wl1271_fetch_nvs(struct wl1271 *wl)
1106{
1107 const struct firmware *fw;
1108 int ret;
1109
5aa42346 1110 ret = request_firmware(&fw, WL12XX_NVS_NAME, wl1271_wl_to_dev(wl));
f5fc0f86
LC		 1111
1112 if (ret < 0) {
1113 wl1271_error("could not get nvs file: %d", ret);
1114 return ret;
1115 }
1116
bc765bf3 1117 wl->nvs = kmemdup(fw->data, fw->size, GFP_KERNEL);
f5fc0f86
LC		 1118
1119 if (!wl->nvs) {
1120 wl1271_error("could not allocate memory for the nvs file");
1121 ret = -ENOMEM;
1122 goto out;
1123 }
1124
02fabb0e
JO		 1125 wl->nvs_len = fw->size;
1126
f5fc0f86
LC		 1127out:
1128 release_firmware(fw);
1129
1130 return ret;
1131}
1132
baacb9ae
IY		 1133void wl12xx_queue_recovery_work(struct wl1271 *wl)
1134{
1135 if (!test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
1136 ieee80211_queue_work(wl->hw, &wl->recovery_work);
1137}
1138
95dac04f
IY		 1139size_t wl12xx_copy_fwlog(struct wl1271 *wl, u8 *memblock, size_t maxlen)
1140{
1141 size_t len = 0;
1142
1143 /* The FW log is a length-value list, find where the log end */
1144 while (len < maxlen) {
1145 if (memblock[len] == 0)
1146 break;
1147 if (len + memblock[len] + 1 > maxlen)
1148 break;
1149 len += memblock[len] + 1;
1150 }
1151
1152 /* Make sure we have enough room */
1153 len = min(len, (size_t)(PAGE_SIZE - wl->fwlog_size));
1154
1155 /* Fill the FW log file, consumed by the sysfs fwlog entry */
1156 memcpy(wl->fwlog + wl->fwlog_size, memblock, len);
1157 wl->fwlog_size += len;
1158
1159 return len;
1160}
1161
1162static void wl12xx_read_fwlog_panic(struct wl1271 *wl)
1163{
1164 u32 addr;
1165 u32 first_addr;
1166 u8 *block;
1167
1168 if ((wl->quirks & WL12XX_QUIRK_FWLOG_NOT_IMPLEMENTED) ||
1169 (wl->conf.fwlog.mode != WL12XX_FWLOG_ON_DEMAND) ||
1170 (wl->conf.fwlog.mem_blocks == 0))
1171 return;
1172
1173 wl1271_info("Reading FW panic log");
1174
1175 block = kmalloc(WL12XX_HW_BLOCK_SIZE, GFP_KERNEL);
1176 if (!block)
1177 return;
1178
1179 /*
1180 * Make sure the chip is awake and the logger isn't active.
1181 * This might fail if the firmware hanged.
1182 */
1183 if (!wl1271_ps_elp_wakeup(wl))
1184 wl12xx_cmd_stop_fwlog(wl);
1185
1186 /* Read the first memory block address */
4d56ad9c
EP		 1187 wl12xx_fw_status(wl, wl->fw_status);
1188 first_addr = le32_to_cpu(wl->fw_status->log_start_addr);
95dac04f
IY		 1189 if (!first_addr)
1190 goto out;
1191
1192 /* Traverse the memory blocks linked list */
1193 addr = first_addr;
1194 do {
1195 memset(block, 0, WL12XX_HW_BLOCK_SIZE);
1196 wl1271_read_hwaddr(wl, addr, block, WL12XX_HW_BLOCK_SIZE,
1197 false);
1198
1199 /*
1200 * Memory blocks are linked to one another. The first 4 bytes
1201 * of each memory block hold the hardware address of the next
1202 * one. The last memory block points to the first one.
1203 */
4d56ad9c 1204 addr = le32_to_cpup((__le32 *)block);
95dac04f
IY		 1205 if (!wl12xx_copy_fwlog(wl, block + sizeof(addr),
1206 WL12XX_HW_BLOCK_SIZE - sizeof(addr)))
1207 break;
1208 } while (addr && (addr != first_addr));
1209
1210 wake_up_interruptible(&wl->fwlog_waitq);
1211
1212out:
1213 kfree(block);
1214}
1215
52b0e7a6
JO		 1216static void wl1271_recovery_work(struct work_struct *work)
1217{
1218 struct wl1271 *wl =
1219 container_of(work, struct wl1271, recovery_work);
1220
1221 mutex_lock(&wl->mutex);
1222
1223 if (wl->state != WL1271_STATE_ON)
1224 goto out;
1225
baacb9ae
IY		 1226 /* Avoid a recursive recovery */
1227 set_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
1228
95dac04f
IY		 1229 wl12xx_read_fwlog_panic(wl);
1230
52dcaf57
AN		 1231 wl1271_info("Hardware recovery in progress. FW ver: %s pc: 0x%x",
1232 wl->chip.fw_ver_str, wl1271_read32(wl, SCR_PAD4));
52b0e7a6 1233
2a5bff09
EP		 1234 BUG_ON(bug_on_recovery);
1235
b992c682
OK		 1236 /*
1237 * Advance security sequence number to overcome potential progress
1238 * in the firmware during recovery. This doens't hurt if the network is
1239 * not encrypted.
1240 */
1241 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags) ||
1242 test_bit(WL1271_FLAG_AP_STARTED, &wl->flags))
1243 wl->tx_security_seq += WL1271_TX_SQN_POST_RECOVERY_PADDING;
1244
7dece1c8
AN		 1245 /* Prevent spurious TX during FW restart */
1246 ieee80211_stop_queues(wl->hw);
1247
33c2c06c
LC		 1248 if (wl->sched_scanning) {
1249 ieee80211_sched_scan_stopped(wl->hw);
1250 wl->sched_scanning = false;
1251 }
1252
52b0e7a6 1253 /* reboot the chipset */
7dece1c8 1254 __wl1271_op_remove_interface(wl, false);
baacb9ae
IY		 1255
1256 clear_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
1257
52b0e7a6
JO		 1258 ieee80211_restart_hw(wl->hw);
1259
7dece1c8
AN		 1260 /*
1261 * Its safe to enable TX now - the queues are stopped after a request
1262 * to restart the HW.
1263 */
1264 ieee80211_wake_queues(wl->hw);
1265
52b0e7a6
JO		 1266out:
1267 mutex_unlock(&wl->mutex);
1268}
1269
f5fc0f86
LC		 1270static void wl1271_fw_wakeup(struct wl1271 *wl)
1271{
1272 u32 elp_reg;
1273
1274 elp_reg = ELPCTRL_WAKE_UP;
74621417 1275 wl1271_raw_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg);
f5fc0f86
LC		 1276}
1277
1278static int wl1271_setup(struct wl1271 *wl)
1279{
1280 wl->fw_status = kmalloc(sizeof(*wl->fw_status), GFP_KERNEL);
1281 if (!wl->fw_status)
1282 return -ENOMEM;
1283
1284 wl->tx_res_if = kmalloc(sizeof(*wl->tx_res_if), GFP_KERNEL);
1285 if (!wl->tx_res_if) {
1286 kfree(wl->fw_status);
1287 return -ENOMEM;
1288 }
1289
f5fc0f86
LC		 1290 return 0;
1291}
1292
1293static int wl1271_chip_wakeup(struct wl1271 *wl)
1294{
451de97a 1295 struct wl1271_partition_set partition;
f5fc0f86
LC		 1296 int ret = 0;
1297
01ac17ec 1298 msleep(WL1271_PRE_POWER_ON_SLEEP);
2cc78ff7
OBC		 1299 ret = wl1271_power_on(wl);
1300 if (ret < 0)
1301 goto out;
f5fc0f86 1302 msleep(WL1271_POWER_ON_SLEEP);
9b280722
TP		 1303 wl1271_io_reset(wl);
1304 wl1271_io_init(wl);
f5fc0f86
LC		 1305
1306 /* We don't need a real memory partition here, because we only want
1307 * to use the registers at this point. */
451de97a
JO		 1308 memset(&partition, 0, sizeof(partition));
1309 partition.reg.start = REGISTERS_BASE;
1310 partition.reg.size = REGISTERS_DOWN_SIZE;
1311 wl1271_set_partition(wl, &partition);
f5fc0f86
LC		 1312
1313 /* ELP module wake up */
1314 wl1271_fw_wakeup(wl);
1315
1316 /* whal_FwCtrl_BootSm() */
1317
1318 /* 0. read chip id from CHIP_ID */
7b048c52 1319 wl->chip.id = wl1271_read32(wl, CHIP_ID_B);
f5fc0f86
LC		 1320
1321 /* 1. check if chip id is valid */
1322
1323 switch (wl->chip.id) {
1324 case CHIP_ID_1271_PG10:
1325 wl1271_warning("chip id 0x%x (1271 PG10) support is obsolete",
1326 wl->chip.id);
1327
1328 ret = wl1271_setup(wl);
1329 if (ret < 0)
9ccd9217 1330 goto out;
f5fc0f86
LC		 1331 break;
1332 case CHIP_ID_1271_PG20:
1333 wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1271 PG20)",
1334 wl->chip.id);
1335
0c005048
SL		 1336 /*
1337 * 'end-of-transaction flag' and 'LPD mode flag'
1338 * should be set in wl127x AP mode only
1339 */
564f5950 1340 if (wl->bss_type == BSS_TYPE_AP_BSS)
0c005048
SL		 1341 wl->quirks |= (WL12XX_QUIRK_END_OF_TRANSACTION |
1342 WL12XX_QUIRK_LPD_MODE);
564f5950 1343
f5fc0f86
LC		 1344 ret = wl1271_setup(wl);
1345 if (ret < 0)
9ccd9217 1346 goto out;
f5fc0f86 1347 break;
0830ceed
SL		 1348 case CHIP_ID_1283_PG20:
1349 wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1283 PG20)",
1350 wl->chip.id);
1351
1352 ret = wl1271_setup(wl);
1353 if (ret < 0)
1354 goto out;
0c005048 1355
0da13da7
IY		 1356 if (wl1271_set_block_size(wl))
1357 wl->quirks |= WL12XX_QUIRK_BLOCKSIZE_ALIGNMENT;
0830ceed
SL		 1358 break;
1359 case CHIP_ID_1283_PG10:
f5fc0f86 1360 default:
9ccd9217 1361 wl1271_warning("unsupported chip id: 0x%x", wl->chip.id);
f5fc0f86 1362 ret = -ENODEV;
9ccd9217 1363 goto out;
f5fc0f86
LC		 1364 }
1365
c302b2c9 1366 if (wl->fw == NULL) {
f5fc0f86
LC		 1367 ret = wl1271_fetch_firmware(wl);
1368 if (ret < 0)
9ccd9217 1369 goto out;
f5fc0f86
LC		 1370 }
1371
1372 /* No NVS from netlink, try to get it from the filesystem */
1373 if (wl->nvs == NULL) {
1374 ret = wl1271_fetch_nvs(wl);
1375 if (ret < 0)
9ccd9217 1376 goto out;
f5fc0f86
LC		 1377 }
1378
1379out:
1380 return ret;
1381}
1382
f5fc0f86
LC		 1383int wl1271_plt_start(struct wl1271 *wl)
1384{
9ccd9217 1385 int retries = WL1271_BOOT_RETRIES;
6f07b72a 1386 struct wiphy *wiphy = wl->hw->wiphy;
f5fc0f86
LC		 1387 int ret;
1388
1389 mutex_lock(&wl->mutex);
1390
1391 wl1271_notice("power up");
1392
1393 if (wl->state != WL1271_STATE_OFF) {
1394 wl1271_error("cannot go into PLT state because not "
1395 "in off state: %d", wl->state);
1396 ret = -EBUSY;
1397 goto out;
1398 }
1399
166d504e
AN		 1400 wl->bss_type = BSS_TYPE_STA_BSS;
1401
9ccd9217
JO		 1402 while (retries) {
1403 retries--;
1404 ret = wl1271_chip_wakeup(wl);
1405 if (ret < 0)
1406 goto power_off;
f5fc0f86 1407
9ccd9217
JO		 1408 ret = wl1271_boot(wl);
1409 if (ret < 0)
1410 goto power_off;
eb5b28d0 1411
9ccd9217
JO		 1412 ret = wl1271_plt_init(wl);
1413 if (ret < 0)
1414 goto irq_disable;
bd5ea18f 1415
9ccd9217
JO		 1416 wl->state = WL1271_STATE_PLT;
1417 wl1271_notice("firmware booted in PLT mode (%s)",
4b7fac77 1418 wl->chip.fw_ver_str);
e7ddf549 1419
6f07b72a
GK		 1420 /* update hw/fw version info in wiphy struct */
1421 wiphy->hw_version = wl->chip.id;
1422 strncpy(wiphy->fw_version, wl->chip.fw_ver_str,
1423 sizeof(wiphy->fw_version));
1424
9ccd9217 1425 goto out;
eb5b28d0 1426
9ccd9217 1427irq_disable:
9ccd9217
JO		 1428 mutex_unlock(&wl->mutex);
1429 /* Unlocking the mutex in the middle of handling is
1430 inherently unsafe. In this case we deem it safe to do,
1431 because we need to let any possibly pending IRQ out of
1432 the system (and while we are WL1271_STATE_OFF the IRQ
1433 work function will not do anything.) Also, any other
1434 possible concurrent operations will fail due to the
1435 current state, hence the wl1271 struct should be safe. */
a620865e
IY		 1436 wl1271_disable_interrupts(wl);
1437 wl1271_flush_deferred_work(wl);
1438 cancel_work_sync(&wl->netstack_work);
9ccd9217
JO		 1439 mutex_lock(&wl->mutex);
1440power_off:
1441 wl1271_power_off(wl);
1442 }
f5fc0f86 1443
9ccd9217
JO		 1444 wl1271_error("firmware boot in PLT mode failed despite %d retries",
1445 WL1271_BOOT_RETRIES);
f5fc0f86
LC		 1446out:
1447 mutex_unlock(&wl->mutex);
1448
1449 return ret;
1450}
1451
4623ec7d 1452static int __wl1271_plt_stop(struct wl1271 *wl)
f5fc0f86
LC		 1453{
1454 int ret = 0;
1455
f5fc0f86
LC		 1456 wl1271_notice("power down");
1457
1458 if (wl->state != WL1271_STATE_PLT) {
1459 wl1271_error("cannot power down because not in PLT "
1460 "state: %d", wl->state);
1461 ret = -EBUSY;
1462 goto out;
1463 }
1464
f5fc0f86
LC		 1465 wl1271_power_off(wl);
1466
1467 wl->state = WL1271_STATE_OFF;
bd5ea18f 1468 wl->rx_counter = 0;
f5fc0f86 1469
f5fc0f86 1470 mutex_unlock(&wl->mutex);
a620865e
IY		 1471 wl1271_disable_interrupts(wl);
1472 wl1271_flush_deferred_work(wl);
1473 cancel_work_sync(&wl->netstack_work);
52b0e7a6 1474 cancel_work_sync(&wl->recovery_work);
4ae3fa87
JO		 1475 mutex_lock(&wl->mutex);
1476out:
1477 return ret;
1478}
1479
1480int wl1271_plt_stop(struct wl1271 *wl)
1481{
1482 int ret;
8c7f4f31 1483
4ae3fa87
JO		 1484 mutex_lock(&wl->mutex);
1485 ret = __wl1271_plt_stop(wl);
1486 mutex_unlock(&wl->mutex);
f5fc0f86
LC		 1487 return ret;
1488}
1489
7bb45683 1490static void wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
f5fc0f86
LC		 1491{
1492 struct wl1271 *wl = hw->priv;
830fb67b 1493 unsigned long flags;
708bb3cf 1494 int q, mapping;
a8c0ddb5 1495 u8 hlid = 0;
f5fc0f86 1496
708bb3cf
AN		 1497 mapping = skb_get_queue_mapping(skb);
1498 q = wl1271_tx_get_queue(mapping);
b07d4037
IY		 1499
1500 if (wl->bss_type == BSS_TYPE_AP_BSS)
f4df1bd5 1501 hlid = wl12xx_tx_get_hlid_ap(wl, skb);
b07d4037 1502
830fb67b 1503 spin_lock_irqsave(&wl->wl_lock, flags);
b07d4037 1504
830fb67b 1505 /* queue the packet */
a8c0ddb5 1506 if (wl->bss_type == BSS_TYPE_AP_BSS) {
04216da3
AN		 1507 if (!wl1271_is_active_sta(wl, hlid)) {
1508 wl1271_debug(DEBUG_TX, "DROP skb hlid %d q %d",
1509 hlid, q);
1510 dev_kfree_skb(skb);
1511 goto out;
1512 }
1513
a8c0ddb5
AN		 1514 wl1271_debug(DEBUG_TX, "queue skb hlid %d q %d", hlid, q);
1515 skb_queue_tail(&wl->links[hlid].tx_queue[q], skb);
1516 } else {
1517 skb_queue_tail(&wl->tx_queue[q], skb);
1518 }
f5fc0f86 1519
04b4d69c
AN		 1520 wl->tx_queue_count[q]++;
1521
1522 /*
1523 * The workqueue is slow to process the tx_queue and we need stop
1524 * the queue here, otherwise the queue will get too long.
1525 */
1526 if (wl->tx_queue_count[q] >= WL1271_TX_QUEUE_HIGH_WATERMARK) {
1527 wl1271_debug(DEBUG_TX, "op_tx: stopping queues for q %d", q);
1528 ieee80211_stop_queue(wl->hw, mapping);
1529 set_bit(q, &wl->stopped_queues_map);
1530 }
1531
f5fc0f86
LC		 1532 /*
1533 * The chip specific setup must run before the first TX packet -
1534 * before that, the tx_work will not be initialized!
1535 */
1536
b07d4037
IY		 1537 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
1538 !test_bit(WL1271_FLAG_TX_PENDING, &wl->flags))
a522550a 1539 ieee80211_queue_work(wl->hw, &wl->tx_work);
b07d4037 1540
04216da3 1541out:
b07d4037 1542 spin_unlock_irqrestore(&wl->wl_lock, flags);
f5fc0f86
LC		 1543}
1544
ae47c45f
SL		 1545int wl1271_tx_dummy_packet(struct wl1271 *wl)
1546{
990f5de7 1547 unsigned long flags;
14623787
AN		 1548 int q;
1549
1550 /* no need to queue a new dummy packet if one is already pending */
1551 if (test_bit(WL1271_FLAG_DUMMY_PACKET_PENDING, &wl->flags))
1552 return 0;
1553
1554 q = wl1271_tx_get_queue(skb_get_queue_mapping(wl->dummy_packet));
990f5de7
IY		 1555
1556 spin_lock_irqsave(&wl->wl_lock, flags);
1557 set_bit(WL1271_FLAG_DUMMY_PACKET_PENDING, &wl->flags);
f1a46384 1558 wl->tx_queue_count[q]++;
990f5de7
IY		 1559 spin_unlock_irqrestore(&wl->wl_lock, flags);
1560
1561 /* The FW is low on RX memory blocks, so send the dummy packet asap */
1562 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags))
1563 wl1271_tx_work_locked(wl);
1564
1565 /*
1566 * If the FW TX is busy, TX work will be scheduled by the threaded
1567 * interrupt handler function
1568 */
1569 return 0;
1570}
1571
1572/*
1573 * The size of the dummy packet should be at least 1400 bytes. However, in
1574 * order to minimize the number of bus transactions, aligning it to 512 bytes
1575 * boundaries could be beneficial, performance wise
1576 */
1577#define TOTAL_TX_DUMMY_PACKET_SIZE (ALIGN(1400, 512))
1578
cf27d867 1579static struct sk_buff *wl12xx_alloc_dummy_packet(struct wl1271 *wl)
990f5de7
IY		 1580{
1581 struct sk_buff *skb;
ae47c45f 1582 struct ieee80211_hdr_3addr *hdr;
990f5de7
IY		 1583 unsigned int dummy_packet_size;
1584
1585 dummy_packet_size = TOTAL_TX_DUMMY_PACKET_SIZE -
1586 sizeof(struct wl1271_tx_hw_descr) - sizeof(*hdr);
ae47c45f 1587
990f5de7 1588 skb = dev_alloc_skb(TOTAL_TX_DUMMY_PACKET_SIZE);
ae47c45f 1589 if (!skb) {
990f5de7
IY		 1590 wl1271_warning("Failed to allocate a dummy packet skb");
1591 return NULL;
ae47c45f
SL		 1592 }
1593
1594 skb_reserve(skb, sizeof(struct wl1271_tx_hw_descr));
1595
1596 hdr = (struct ieee80211_hdr_3addr *) skb_put(skb, sizeof(*hdr));
1597 memset(hdr, 0, sizeof(*hdr));
1598 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
990f5de7
IY		 1599 IEEE80211_STYPE_NULLFUNC |
1600 IEEE80211_FCTL_TODS);
ae47c45f 1601
990f5de7 1602 memset(skb_put(skb, dummy_packet_size), 0, dummy_packet_size);
ae47c45f 1603
18b92ffa
LC		 1604 /* Dummy packets require the TID to be management */
1605 skb->priority = WL1271_TID_MGMT;
ae47c45f 1606
990f5de7 1607 /* Initialize all fields that might be used */
86c438f4 1608 skb_set_queue_mapping(skb, 0);
990f5de7 1609 memset(IEEE80211_SKB_CB(skb), 0, sizeof(struct ieee80211_tx_info));
ae47c45f 1610
990f5de7 1611 return skb;
ae47c45f
SL		 1612}
1613
990f5de7 1614
c2c192ac
JO		 1615static struct notifier_block wl1271_dev_notifier = {
1616 .notifier_call = wl1271_dev_notify,
1617};
1618
f634a4e7 1619#ifdef CONFIG_PM
8a7cf3fe 1620static int wl1271_configure_suspend_sta(struct wl1271 *wl)
9439064c 1621{
e85d1629 1622 int ret = 0;
9439064c 1623
9439064c
EP		 1624 mutex_lock(&wl->mutex);
1625
e85d1629
EP		 1626 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
1627 goto out_unlock;
1628
9439064c
EP		 1629 ret = wl1271_ps_elp_wakeup(wl);
1630 if (ret < 0)
1631 goto out_unlock;
1632
1633 /* enter psm if needed*/
1634 if (!test_bit(WL1271_FLAG_PSM, &wl->flags)) {
1635 DECLARE_COMPLETION_ONSTACK(compl);
1636
1637 wl->ps_compl = &compl;
1638 ret = wl1271_ps_set_mode(wl, STATION_POWER_SAVE_MODE,
1639 wl->basic_rate, true);
1640 if (ret < 0)
1641 goto out_sleep;
1642
1643 /* we must unlock here so we will be able to get events */
1644 wl1271_ps_elp_sleep(wl);
1645 mutex_unlock(&wl->mutex);
1646
1647 ret = wait_for_completion_timeout(
1648 &compl, msecs_to_jiffies(WL1271_PS_COMPLETE_TIMEOUT));
1649 if (ret <= 0) {
1650 wl1271_warning("couldn't enter ps mode!");
1651 ret = -EBUSY;
1652 goto out;
1653 }
1654
1655 /* take mutex again, and wakeup */
1656 mutex_lock(&wl->mutex);
1657
1658 ret = wl1271_ps_elp_wakeup(wl);
1659 if (ret < 0)
1660 goto out_unlock;
1661 }
1662out_sleep:
1663 wl1271_ps_elp_sleep(wl);
1664out_unlock:
1665 mutex_unlock(&wl->mutex);
1666out:
1667 return ret;
1668
1669}
1670
8a7cf3fe
EP		 1671static int wl1271_configure_suspend_ap(struct wl1271 *wl)
1672{
e85d1629 1673 int ret = 0;
8a7cf3fe
EP		 1674
1675 mutex_lock(&wl->mutex);
1676
e85d1629
EP		 1677 if (!test_bit(WL1271_FLAG_AP_STARTED, &wl->flags))
1678 goto out_unlock;
1679
8a7cf3fe
EP		 1680 ret = wl1271_ps_elp_wakeup(wl);
1681 if (ret < 0)
1682 goto out_unlock;
1683
f42bd2cb 1684 ret = wl1271_acx_beacon_filter_opt(wl, true);
8a7cf3fe
EP		 1685
1686 wl1271_ps_elp_sleep(wl);
1687out_unlock:
1688 mutex_unlock(&wl->mutex);
1689 return ret;
1690
1691}
1692
1693static int wl1271_configure_suspend(struct wl1271 *wl)
1694{
1695 if (wl->bss_type == BSS_TYPE_STA_BSS)
1696 return wl1271_configure_suspend_sta(wl);
1697 if (wl->bss_type == BSS_TYPE_AP_BSS)
1698 return wl1271_configure_suspend_ap(wl);
1699 return 0;
1700}
1701
9439064c
EP		 1702static void wl1271_configure_resume(struct wl1271 *wl)
1703{
1704 int ret;
8a7cf3fe
EP		 1705 bool is_sta = wl->bss_type == BSS_TYPE_STA_BSS;
1706 bool is_ap = wl->bss_type == BSS_TYPE_AP_BSS;
9439064c 1707
8a7cf3fe 1708 if (!is_sta && !is_ap)
9439064c
EP		 1709 return;
1710
1711 mutex_lock(&wl->mutex);
1712 ret = wl1271_ps_elp_wakeup(wl);
1713 if (ret < 0)
1714 goto out;
1715
8a7cf3fe
EP		 1716 if (is_sta) {
1717 /* exit psm if it wasn't configured */
1718 if (!test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags))
1719 wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE,
1720 wl->basic_rate, true);
1721 } else if (is_ap) {
f42bd2cb 1722 wl1271_acx_beacon_filter_opt(wl, false);
8a7cf3fe 1723 }
9439064c
EP		 1724
1725 wl1271_ps_elp_sleep(wl);
1726out:
1727 mutex_unlock(&wl->mutex);
1728}
1729
402e4861
EP		 1730static int wl1271_op_suspend(struct ieee80211_hw *hw,
1731 struct cfg80211_wowlan *wow)
1732{
1733 struct wl1271 *wl = hw->priv;
4a859df8
EP		 1734 int ret;
1735
402e4861 1736 wl1271_debug(DEBUG_MAC80211, "mac80211 suspend wow=%d", !!wow);
4a859df8 1737 WARN_ON(!wow || !wow->any);
f44e5868 1738
4a859df8
EP		 1739 wl->wow_enabled = true;
1740 ret = wl1271_configure_suspend(wl);
1741 if (ret < 0) {
1742 wl1271_warning("couldn't prepare device to suspend");
1743 return ret;
1744 }
1745 /* flush any remaining work */
1746 wl1271_debug(DEBUG_MAC80211, "flushing remaining works");
f44e5868 1747
4a859df8
EP		 1748 /*
1749 * disable and re-enable interrupts in order to flush
1750 * the threaded_irq
1751 */
1752 wl1271_disable_interrupts(wl);
1753
1754 /*
1755 * set suspended flag to avoid triggering a new threaded_irq
1756 * work. no need for spinlock as interrupts are disabled.
1757 */
1758 set_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
1759
1760 wl1271_enable_interrupts(wl);
1761 flush_work(&wl->tx_work);
1762 flush_delayed_work(&wl->pspoll_work);
1763 flush_delayed_work(&wl->elp_work);
f44e5868 1764
402e4861
EP		 1765 return 0;
1766}
1767
1768static int wl1271_op_resume(struct ieee80211_hw *hw)
1769{
1770 struct wl1271 *wl = hw->priv;
4a859df8
EP		 1771 unsigned long flags;
1772 bool run_irq_work = false;
1773
402e4861
EP		 1774 wl1271_debug(DEBUG_MAC80211, "mac80211 resume wow=%d",
1775 wl->wow_enabled);
4a859df8 1776 WARN_ON(!wl->wow_enabled);
f44e5868
EP		 1777
1778 /*
1779 * re-enable irq_work enqueuing, and call irq_work directly if
1780 * there is a pending work.
1781 */
4a859df8
EP		 1782 spin_lock_irqsave(&wl->wl_lock, flags);
1783 clear_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
1784 if (test_and_clear_bit(WL1271_FLAG_PENDING_WORK, &wl->flags))
1785 run_irq_work = true;
1786 spin_unlock_irqrestore(&wl->wl_lock, flags);
9439064c 1787
4a859df8
EP		 1788 if (run_irq_work) {
1789 wl1271_debug(DEBUG_MAC80211,
1790 "run postponed irq_work directly");
1791 wl1271_irq(0, wl);
1792 wl1271_enable_interrupts(wl);
f44e5868 1793 }
4a859df8 1794 wl1271_configure_resume(wl);
ff91afc9 1795 wl->wow_enabled = false;
f44e5868 1796
402e4861
EP		 1797 return 0;
1798}
f634a4e7 1799#endif
402e4861 1800
f5fc0f86 1801static int wl1271_op_start(struct ieee80211_hw *hw)
1b72aecd
JO		 1802{
1803 wl1271_debug(DEBUG_MAC80211, "mac80211 start");
1804
1805 /*
1806 * We have to delay the booting of the hardware because
1807 * we need to know the local MAC address before downloading and
1808 * initializing the firmware. The MAC address cannot be changed
1809 * after boot, and without the proper MAC address, the firmware
1810 * will not function properly.
1811 *
1812 * The MAC address is first known when the corresponding interface
1813 * is added. That is where we will initialize the hardware.
1814 */
1815
1816 return 0;
1817}
1818
1819static void wl1271_op_stop(struct ieee80211_hw *hw)
1820{
1821 wl1271_debug(DEBUG_MAC80211, "mac80211 stop");
1822}
1823
b78b47eb
EP		 1824static u8 wl12xx_get_role_type(struct wl1271 *wl)
1825{
1826 switch (wl->bss_type) {
1827 case BSS_TYPE_AP_BSS:
045c745f
EP		 1828 if (wl->p2p)
1829 return WL1271_ROLE_P2P_GO;
1830 else
1831 return WL1271_ROLE_AP;
b78b47eb
EP		 1832
1833 case BSS_TYPE_STA_BSS:
045c745f
EP		 1834 if (wl->p2p)
1835 return WL1271_ROLE_P2P_CL;
1836 else
1837 return WL1271_ROLE_STA;
b78b47eb 1838
227e81e1
EP		 1839 case BSS_TYPE_IBSS:
1840 return WL1271_ROLE_IBSS;
1841
b78b47eb
EP		 1842 default:
1843 wl1271_error("invalid bss_type: %d", wl->bss_type);
1844 }
1845 return WL12XX_INVALID_ROLE_TYPE;
1846}
1847
1b72aecd
JO		 1848static int wl1271_op_add_interface(struct ieee80211_hw *hw,
1849 struct ieee80211_vif *vif)
f5fc0f86
LC		 1850{
1851 struct wl1271 *wl = hw->priv;
ac01e948 1852 struct wiphy *wiphy = hw->wiphy;
9ccd9217 1853 int retries = WL1271_BOOT_RETRIES;
f5fc0f86 1854 int ret = 0;
b78b47eb 1855 u8 role_type;
71125abd 1856 bool booted = false;
f5fc0f86 1857
1b72aecd 1858 wl1271_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM",
045c745f 1859 ieee80211_vif_type_p2p(vif), vif->addr);
f5fc0f86
LC		 1860
1861 mutex_lock(&wl->mutex);
1b72aecd 1862 if (wl->vif) {
71125abd
EP		 1863 wl1271_debug(DEBUG_MAC80211,
1864 "multiple vifs are not supported yet");
1b72aecd
JO		 1865 ret = -EBUSY;
1866 goto out;
1867 }
1868
13026dec
JO		 1869 /*
1870 * in some very corner case HW recovery scenarios its possible to
1871 * get here before __wl1271_op_remove_interface is complete, so
1872 * opt out if that is the case.
1873 */
1874 if (test_bit(WL1271_FLAG_IF_INITIALIZED, &wl->flags)) {
1875 ret = -EBUSY;
1876 goto out;
1877 }
1878
045c745f
EP		 1879 switch (ieee80211_vif_type_p2p(vif)) {
1880 case NL80211_IFTYPE_P2P_CLIENT:
1881 wl->p2p = 1;
1882 /* fall-through */
1b72aecd
JO		 1883 case NL80211_IFTYPE_STATION:
1884 wl->bss_type = BSS_TYPE_STA_BSS;
5da11dcd 1885 wl->set_bss_type = BSS_TYPE_STA_BSS;
1b72aecd
JO		 1886 break;
1887 case NL80211_IFTYPE_ADHOC:
1888 wl->bss_type = BSS_TYPE_IBSS;
5da11dcd 1889 wl->set_bss_type = BSS_TYPE_STA_BSS;
1b72aecd 1890 break;
045c745f
EP		 1891 case NL80211_IFTYPE_P2P_GO:
1892 wl->p2p = 1;
1893 /* fall-through */
038d925b
AN		 1894 case NL80211_IFTYPE_AP:
1895 wl->bss_type = BSS_TYPE_AP_BSS;
1896 break;
1b72aecd
JO		 1897 default:
1898 ret = -EOPNOTSUPP;
1899 goto out;
1900 }
1901
b78b47eb
EP		 1902 role_type = wl12xx_get_role_type(wl);
1903 if (role_type == WL12XX_INVALID_ROLE_TYPE) {
1904 ret = -EINVAL;
1905 goto out;
1906 }
1b72aecd 1907 memcpy(wl->mac_addr, vif->addr, ETH_ALEN);
f5fc0f86
LC		 1908
1909 if (wl->state != WL1271_STATE_OFF) {
1910 wl1271_error("cannot start because not in off state: %d",
1911 wl->state);
1912 ret = -EBUSY;
1913 goto out;
1914 }
1915
9ccd9217
JO		 1916 while (retries) {
1917 retries--;
1918 ret = wl1271_chip_wakeup(wl);
1919 if (ret < 0)
1920 goto power_off;
f5fc0f86 1921
9ccd9217
JO		 1922 ret = wl1271_boot(wl);
1923 if (ret < 0)
1924 goto power_off;
f5fc0f86 1925
227e81e1
EP		 1926 if (wl->bss_type == BSS_TYPE_STA_BSS ||
1927 wl->bss_type == BSS_TYPE_IBSS) {
04e8079c
EP		 1928 /*
1929 * The device role is a special role used for
1930 * rx and tx frames prior to association (as
1931 * the STA role can get packets only from
1932 * its associated bssid)
1933 */
1934 ret = wl12xx_cmd_role_enable(wl,
1935 WL1271_ROLE_DEVICE,
1936 &wl->dev_role_id);
1937 if (ret < 0)
1938 goto irq_disable;
1939 }
1940
b78b47eb
EP		 1941 ret = wl12xx_cmd_role_enable(wl, role_type, &wl->role_id);
1942 if (ret < 0)
1943 goto irq_disable;
1944
9ccd9217
JO		 1945 ret = wl1271_hw_init(wl);
1946 if (ret < 0)
1947 goto irq_disable;
f5fc0f86 1948
71125abd
EP		 1949 booted = true;
1950 break;
eb5b28d0 1951
9ccd9217 1952irq_disable:
9ccd9217
JO		 1953 mutex_unlock(&wl->mutex);
1954 /* Unlocking the mutex in the middle of handling is
1955 inherently unsafe. In this case we deem it safe to do,
1956 because we need to let any possibly pending IRQ out of
1957 the system (and while we are WL1271_STATE_OFF the IRQ
1958 work function will not do anything.) Also, any other
1959 possible concurrent operations will fail due to the
1960 current state, hence the wl1271 struct should be safe. */
a620865e
IY		 1961 wl1271_disable_interrupts(wl);
1962 wl1271_flush_deferred_work(wl);
1963 cancel_work_sync(&wl->netstack_work);
9ccd9217
JO		 1964 mutex_lock(&wl->mutex);
1965power_off:
1966 wl1271_power_off(wl);
1967 }
eb5b28d0 1968
71125abd
EP		 1969 if (!booted) {
1970 wl1271_error("firmware boot failed despite %d retries",
1971 WL1271_BOOT_RETRIES);
1972 goto out;
1973 }
1974
1975 wl->vif = vif;
1976 wl->state = WL1271_STATE_ON;
13026dec 1977 set_bit(WL1271_FLAG_IF_INITIALIZED, &wl->flags);
4b7fac77 1978 wl1271_info("firmware booted (%s)", wl->chip.fw_ver_str);
71125abd
EP		 1979
1980 /* update hw/fw version info in wiphy struct */
1981 wiphy->hw_version = wl->chip.id;
4b7fac77 1982 strncpy(wiphy->fw_version, wl->chip.fw_ver_str,
71125abd
EP		 1983 sizeof(wiphy->fw_version));
1984
fb6a6819
LC		 1985 /*
1986 * Now we know if 11a is supported (info from the NVS), so disable
1987 * 11a channels if not supported
1988 */
1989 if (!wl->enable_11a)
1990 wiphy->bands[IEEE80211_BAND_5GHZ]->n_channels = 0;
1991
1992 wl1271_debug(DEBUG_MAC80211, "11a is %ssupported",
1993 wl->enable_11a ? "" : "not ");
1994
eb5b28d0 1995out:
f5fc0f86
LC		 1996 mutex_unlock(&wl->mutex);
1997
f9f774c1 1998 mutex_lock(&wl_list_mutex);
eb887dfd 1999 if (!ret)
01c09162 2000 list_add(&wl->list, &wl_list);
f9f774c1 2001 mutex_unlock(&wl_list_mutex);
01c09162 2002
f5fc0f86
LC		 2003 return ret;
2004}
2005
7dece1c8
AN		 2006static void __wl1271_op_remove_interface(struct wl1271 *wl,
2007 bool reset_tx_queues)
f5fc0f86 2008{
bf54e301 2009 int ret, i;
f5fc0f86 2010
1b72aecd 2011 wl1271_debug(DEBUG_MAC80211, "mac80211 remove interface");
f5fc0f86 2012
13026dec
JO		 2013 /* because of hardware recovery, we may get here twice */
2014 if (wl->state != WL1271_STATE_ON)
2015 return;
2016
1b72aecd 2017 wl1271_info("down");
f5fc0f86 2018
f9f774c1 2019 mutex_lock(&wl_list_mutex);
01c09162 2020 list_del(&wl->list);
f9f774c1 2021 mutex_unlock(&wl_list_mutex);
01c09162 2022
8d2ef7bd 2023 /* enable dyn ps just in case (if left on due to fw crash etc) */
9a547bf9 2024 if (wl->bss_type == BSS_TYPE_STA_BSS)
f532be6d 2025 ieee80211_enable_dyn_ps(wl->vif);
8d2ef7bd 2026
08688d6b 2027 if (wl->scan.state != WL1271_SCAN_STATE_IDLE) {
08688d6b 2028 wl->scan.state = WL1271_SCAN_STATE_IDLE;
4a31c11c 2029 memset(wl->scan.scanned_ch, 0, sizeof(wl->scan.scanned_ch));
b739a42c 2030 wl->scan.req = NULL;
76a029fb 2031 ieee80211_scan_completed(wl->hw, true);
f5fc0f86
LC		 2032 }
2033
b78b47eb
EP		 2034 if (!test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags)) {
2035 /* disable active roles */
2036 ret = wl1271_ps_elp_wakeup(wl);
2037 if (ret < 0)
2038 goto deinit;
2039
04e8079c
EP		 2040 if (wl->bss_type == BSS_TYPE_STA_BSS) {
2041 ret = wl12xx_cmd_role_disable(wl, &wl->dev_role_id);
2042 if (ret < 0)
2043 goto deinit;
2044 }
2045
b78b47eb
EP		 2046 ret = wl12xx_cmd_role_disable(wl, &wl->role_id);
2047 if (ret < 0)
2048 goto deinit;
2049
2050 wl1271_ps_elp_sleep(wl);
2051 }
2052deinit:
e51ae9be 2053 /* clear all hlids (except system_hlid) */
b78b47eb 2054 wl->sta_hlid = WL12XX_INVALID_LINK_ID;
04e8079c 2055 wl->dev_hlid = WL12XX_INVALID_LINK_ID;
e51ae9be
AN		 2056 wl->ap_bcast_hlid = WL12XX_INVALID_LINK_ID;
2057 wl->ap_global_hlid = WL12XX_INVALID_LINK_ID;
b78b47eb 2058
13026dec
JO		 2059 /*
2060 * this must be before the cancel_work calls below, so that the work
2061 * functions don't perform further work.
2062 */
f5fc0f86
LC		 2063 wl->state = WL1271_STATE_OFF;
2064
f5fc0f86
LC		 2065 mutex_unlock(&wl->mutex);
2066
a620865e
IY		 2067 wl1271_disable_interrupts(wl);
2068 wl1271_flush_deferred_work(wl);
78abd320 2069 cancel_delayed_work_sync(&wl->scan_complete_work);
a620865e 2070 cancel_work_sync(&wl->netstack_work);
f5fc0f86 2071 cancel_work_sync(&wl->tx_work);
77ddaa10
EP		 2072 del_timer_sync(&wl->rx_streaming_timer);
2073 cancel_work_sync(&wl->rx_streaming_enable_work);
2074 cancel_work_sync(&wl->rx_streaming_disable_work);
90494a90 2075 cancel_delayed_work_sync(&wl->pspoll_work);
8c7f4f31 2076 cancel_delayed_work_sync(&wl->elp_work);
f5fc0f86
LC		 2077
2078 mutex_lock(&wl->mutex);
2079
2080 /* let's notify MAC80211 about the remaining pending TX frames */
7dece1c8 2081 wl1271_tx_reset(wl, reset_tx_queues);
f5fc0f86
LC		 2082 wl1271_power_off(wl);
2083
2084 memset(wl->bssid, 0, ETH_ALEN);
3b40c040 2085 memset(wl->ssid, 0, IEEE80211_MAX_SSID_LEN + 1);
f5fc0f86 2086 wl->ssid_len = 0;
f5fc0f86 2087 wl->bss_type = MAX_BSS_TYPE;
5da11dcd 2088 wl->set_bss_type = MAX_BSS_TYPE;
045c745f 2089 wl->p2p = 0;
8a5a37a6 2090 wl->band = IEEE80211_BAND_2GHZ;
f5fc0f86
LC		 2091
2092 wl->rx_counter = 0;
19ad0715 2093 wl->psm_entry_retry = 0;
f5fc0f86
LC		 2094 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
2095 wl->tx_blocks_available = 0;
7bb5d6ce 2096 wl->tx_allocated_blocks = 0;
f5fc0f86
LC		 2097 wl->tx_results_count = 0;
2098 wl->tx_packets_count = 0;
2099 wl->time_offset = 0;
2100 wl->session_counter = 0;
830fb67b 2101 wl->rate_set = CONF_TX_RATE_MASK_BASIC;
1b72aecd 2102 wl->vif = NULL;
e9eb8cbe 2103 wl->tx_spare_blocks = TX_HW_BLOCK_SPARE_DEFAULT;
7f179b46 2104 wl1271_free_ap_keys(wl);
f84f7d78 2105 memset(wl->ap_hlid_map, 0, sizeof(wl->ap_hlid_map));
b622d992
AN		 2106 wl->ap_fw_ps_map = 0;
2107 wl->ap_ps_map = 0;
33c2c06c 2108 wl->sched_scanning = false;
7f097988 2109 wl->role_id = WL12XX_INVALID_ROLE_ID;
04e8079c 2110 wl->dev_role_id = WL12XX_INVALID_ROLE_ID;
c690ec81
EP		 2111 memset(wl->roles_map, 0, sizeof(wl->roles_map));
2112 memset(wl->links_map, 0, sizeof(wl->links_map));
251c177f 2113 memset(wl->roc_map, 0, sizeof(wl->roc_map));
da03209e 2114 wl->active_sta_count = 0;
d6e19d13 2115
f4df1bd5
EP		 2116 /* The system link is always allocated */
2117 __set_bit(WL12XX_SYSTEM_HLID, wl->links_map);
2118
13026dec
JO		 2119 /*
2120 * this is performed after the cancel_work calls and the associated
2121 * mutex_lock, so that wl1271_op_add_interface does not accidentally
2122 * get executed before all these vars have been reset.
2123 */
2124 wl->flags = 0;
2125
4d56ad9c 2126 wl->tx_blocks_freed = 0;
f5fc0f86 2127
742246f8 2128 for (i = 0; i < NUM_TX_QUEUES; i++) {
bf54e301 2129 wl->tx_pkts_freed[i] = 0;
742246f8
AN		 2130 wl->tx_allocated_pkts[i] = 0;
2131 }
bf54e301 2132
f5fc0f86 2133 wl1271_debugfs_reset(wl);
bd9dc49c
JO		 2134
2135 kfree(wl->fw_status);
2136 wl->fw_status = NULL;
2137 kfree(wl->tx_res_if);
2138 wl->tx_res_if = NULL;
2139 kfree(wl->target_mem_map);
2140 wl->target_mem_map = NULL;
52a2a375 2141}
bd9dc49c 2142
52a2a375
JO		 2143static void wl1271_op_remove_interface(struct ieee80211_hw *hw,
2144 struct ieee80211_vif *vif)
2145{
2146 struct wl1271 *wl = hw->priv;
2147
2148 mutex_lock(&wl->mutex);
67353299
JO		 2149 /*
2150 * wl->vif can be null here if someone shuts down the interface
2151 * just when hardware recovery has been started.
2152 */
2153 if (wl->vif) {
2154 WARN_ON(wl->vif != vif);
7dece1c8 2155 __wl1271_op_remove_interface(wl, true);
67353299 2156 }
52b0e7a6 2157
67353299 2158 mutex_unlock(&wl->mutex);
52b0e7a6 2159 cancel_work_sync(&wl->recovery_work);
f5fc0f86
LC		 2160}
2161
69e5434c 2162static int wl1271_join(struct wl1271 *wl, bool set_assoc)
82429d32
JO		 2163{
2164 int ret;
227e81e1 2165 bool is_ibss = (wl->bss_type == BSS_TYPE_IBSS);
82429d32 2166
69e5434c
JO		 2167 /*
2168 * One of the side effects of the JOIN command is that is clears
2169 * WPA/WPA2 keys from the chipset. Performing a JOIN while associated
2170 * to a WPA/WPA2 access point will therefore kill the data-path.
8bf69aae
OBC		 2171 * Currently the only valid scenario for JOIN during association
2172 * is on roaming, in which case we will also be given new keys.
2173 * Keep the below message for now, unless it starts bothering
2174 * users who really like to roam a lot :)
69e5434c
JO		 2175 */
2176 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
2177 wl1271_info("JOIN while associated.");
2178
2179 if (set_assoc)
2180 set_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags);
2181
227e81e1
EP		 2182 if (is_ibss)
2183 ret = wl12xx_cmd_role_start_ibss(wl);
2184 else
2185 ret = wl12xx_cmd_role_start_sta(wl);
82429d32
JO		 2186 if (ret < 0)
2187 goto out;
2188
82429d32
JO		 2189 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
2190 goto out;
2191
2192 /*
2193 * The join command disable the keep-alive mode, shut down its process,
2194 * and also clear the template config, so we need to reset it all after
2195 * the join. The acx_aid starts the keep-alive process, and the order
2196 * of the commands below is relevant.
2197 */
2198 ret = wl1271_acx_keep_alive_mode(wl, true);
2199 if (ret < 0)
2200 goto out;
2201
2202 ret = wl1271_acx_aid(wl, wl->aid);
2203 if (ret < 0)
2204 goto out;
2205
2206 ret = wl1271_cmd_build_klv_null_data(wl);
2207 if (ret < 0)
2208 goto out;
2209
2210 ret = wl1271_acx_keep_alive_config(wl, CMD_TEMPL_KLV_IDX_NULL_DATA,
2211 ACX_KEEP_ALIVE_TPL_VALID);
2212 if (ret < 0)
2213 goto out;
2214
2215out:
2216 return ret;
2217}
2218
2219static int wl1271_unjoin(struct wl1271 *wl)
c7f43e45
LC		 2220{
2221 int ret;
2222
2223 /* to stop listening to a channel, we disconnect */
c690ec81 2224 ret = wl12xx_cmd_role_stop_sta(wl);
c7f43e45
LC		 2225 if (ret < 0)
2226 goto out;
2227
c7f43e45 2228 memset(wl->bssid, 0, ETH_ALEN);
14b228a0 2229
b992c682
OK		 2230 /* reset TX security counters on a clean disconnect */
2231 wl->tx_security_last_seq_lsb = 0;
2232 wl->tx_security_seq = 0;
2233
c7f43e45
LC		 2234out:
2235 return ret;
2236}
2237
ebba60c6
JO		 2238static void wl1271_set_band_rate(struct wl1271 *wl)
2239{
53835a2d 2240 if (wl->band == IEEE80211_BAND_2GHZ) {
ebba60c6 2241 wl->basic_rate_set = wl->conf.tx.basic_rate;
53835a2d
EP		 2242 wl->rate_set = wl->conf.tx.basic_rate;
2243 } else {
ebba60c6 2244 wl->basic_rate_set = wl->conf.tx.basic_rate_5;
53835a2d
EP		 2245 wl->rate_set = wl->conf.tx.basic_rate_5;
2246 }
2247
ebba60c6
JO		 2248}
2249
251c177f
EP		 2250static bool wl12xx_is_roc(struct wl1271 *wl)
2251{
2252 u8 role_id;
2253
2254 role_id = find_first_bit(wl->roc_map, WL12XX_MAX_ROLES);
2255 if (role_id >= WL12XX_MAX_ROLES)
2256 return false;
2257
2258 return true;
2259}
2260
bee0ffec 2261static int wl1271_sta_handle_idle(struct wl1271 *wl, bool idle)
0d58cbff
JO		 2262{
2263 int ret;
2264
2265 if (idle) {
251c177f
EP		 2266 /* no need to croc if we weren't busy (e.g. during boot) */
2267 if (wl12xx_is_roc(wl)) {
2268 ret = wl12xx_croc(wl, wl->dev_role_id);
2269 if (ret < 0)
2270 goto out;
2271
2272 ret = wl12xx_cmd_role_stop_dev(wl);
0d58cbff
JO		 2273 if (ret < 0)
2274 goto out;
2275 }
e0fe371b 2276 wl->rate_set = wl1271_tx_min_rate_get(wl);
79b223f4 2277 ret = wl1271_acx_sta_rate_policies(wl);
0d58cbff
JO		 2278 if (ret < 0)
2279 goto out;
2280 ret = wl1271_acx_keep_alive_config(
2281 wl, CMD_TEMPL_KLV_IDX_NULL_DATA,
2282 ACX_KEEP_ALIVE_TPL_INVALID);
2283 if (ret < 0)
2284 goto out;
2285 set_bit(WL1271_FLAG_IDLE, &wl->flags);
2286 } else {
33c2c06c
LC		 2287 /* The current firmware only supports sched_scan in idle */
2288 if (wl->sched_scanning) {
2289 wl1271_scan_sched_scan_stop(wl);
2290 ieee80211_sched_scan_stopped(wl->hw);
2291 }
2292
251c177f
EP		 2293 ret = wl12xx_cmd_role_start_dev(wl);
2294 if (ret < 0)
2295 goto out;
2296
2297 ret = wl12xx_roc(wl, wl->dev_role_id);
0d58cbff
JO		 2298 if (ret < 0)
2299 goto out;
2300 clear_bit(WL1271_FLAG_IDLE, &wl->flags);
2301 }
2302
2303out:
2304 return ret;
2305}
2306
f5fc0f86
LC		 2307static int wl1271_op_config(struct ieee80211_hw *hw, u32 changed)
2308{
2309 struct wl1271 *wl = hw->priv;
2310 struct ieee80211_conf *conf = &hw->conf;
2311 int channel, ret = 0;
bee0ffec 2312 bool is_ap;
f5fc0f86
LC		 2313
2314 channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
2315
bee0ffec
AN		 2316 wl1271_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d %s"
2317 " changed 0x%x",
f5fc0f86
LC		 2318 channel,
2319 conf->flags & IEEE80211_CONF_PS ? "on" : "off",
c7f43e45 2320 conf->power_level,
bee0ffec
AN		 2321 conf->flags & IEEE80211_CONF_IDLE ? "idle" : "in use",
2322 changed);
f5fc0f86 2323
781608c4
JO		 2324 /*
2325 * mac80211 will go to idle nearly immediately after transmitting some
2326 * frames, such as the deauth. To make sure those frames reach the air,
2327 * wait here until the TX queue is fully flushed.
2328 */
2329 if ((changed & IEEE80211_CONF_CHANGE_IDLE) &&
2330 (conf->flags & IEEE80211_CONF_IDLE))
2331 wl1271_tx_flush(wl);
2332
f5fc0f86
LC		 2333 mutex_lock(&wl->mutex);
2334
f8d9802f 2335 if (unlikely(wl->state == WL1271_STATE_OFF)) {
17e672d6
AN		 2336 /* we support configuring the channel and band while off */
2337 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL)) {
2338 wl->band = conf->channel->band;
2339 wl->channel = channel;
2340 }
2341
097f8821
AN		 2342 if ((changed & IEEE80211_CONF_CHANGE_POWER))
2343 wl->power_level = conf->power_level;
2344
2c10bb9c 2345 goto out;
f8d9802f 2346 }
8a5a37a6 2347
bee0ffec
AN		 2348 is_ap = (wl->bss_type == BSS_TYPE_AP_BSS);
2349
a620865e 2350 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 2351 if (ret < 0)
2352 goto out;
2353
ebba60c6 2354 /* if the channel changes while joined, join again */
69e5434c
JO		 2355 if (changed & IEEE80211_CONF_CHANGE_CHANNEL &&
2356 ((wl->band != conf->channel->band) ||
2357 (wl->channel != channel))) {
c6930b07
EP		 2358 /* send all pending packets */
2359 wl1271_tx_work_locked(wl);
ebba60c6
JO		 2360 wl->band = conf->channel->band;
2361 wl->channel = channel;
2362
bee0ffec
AN		 2363 if (!is_ap) {
2364 /*
2365 * FIXME: the mac80211 should really provide a fixed
2366 * rate to use here. for now, just use the smallest
2367 * possible rate for the band as a fixed rate for
2368 * association frames and other control messages.
2369 */
2370 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
2371 wl1271_set_band_rate(wl);
2372
2373 wl->basic_rate = wl1271_tx_min_rate_get(wl);
2374 ret = wl1271_acx_sta_rate_policies(wl);
ebba60c6 2375 if (ret < 0)
bee0ffec 2376 wl1271_warning("rate policy for channel "
ebba60c6 2377 "failed %d", ret);
bee0ffec 2378
251c177f
EP		 2379 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags)) {
2380 if (wl12xx_is_roc(wl)) {
2381 /* roaming */
2382 ret = wl12xx_croc(wl, wl->dev_role_id);
2383 if (ret < 0)
2384 goto out_sleep;
2385 }
bee0ffec
AN		 2386 ret = wl1271_join(wl, false);
2387 if (ret < 0)
2388 wl1271_warning("cmd join on channel "
2389 "failed %d", ret);
251c177f
EP		 2390 } else {
2391 /*
2392 * change the ROC channel. do it only if we are
2393 * not idle. otherwise, CROC will be called
2394 * anyway.
2395 */
2396 if (wl12xx_is_roc(wl) &&
2397 !(conf->flags & IEEE80211_CONF_IDLE)) {
2398 ret = wl12xx_croc(wl, wl->dev_role_id);
2399 if (ret < 0)
2400 goto out_sleep;
2401
2402 ret = wl12xx_roc(wl, wl->dev_role_id);
2403 if (ret < 0)
2404 wl1271_warning("roc failed %d",
2405 ret);
2406 }
bee0ffec 2407 }
ebba60c6
JO		 2408 }
2409 }
2410
bee0ffec
AN		 2411 if (changed & IEEE80211_CONF_CHANGE_IDLE && !is_ap) {
2412 ret = wl1271_sta_handle_idle(wl,
2413 conf->flags & IEEE80211_CONF_IDLE);
0d58cbff
JO		 2414 if (ret < 0)
2415 wl1271_warning("idle mode change failed %d", ret);
f5fc0f86
LC		 2416 }
2417
90494a90
JO		 2418 /*
2419 * if mac80211 changes the PSM mode, make sure the mode is not
2420 * incorrectly changed after the pspoll failure active window.
2421 */
2422 if (changed & IEEE80211_CONF_CHANGE_PS)
2423 clear_bit(WL1271_FLAG_PSPOLL_FAILURE, &wl->flags);
2424
71449f8d
JO		 2425 if (conf->flags & IEEE80211_CONF_PS &&
2426 !test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) {
2427 set_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags);
f5fc0f86
LC		 2428
2429 /*
2430 * We enter PSM only if we're already associated.
2431 * If we're not, we'll enter it when joining an SSID,
2432 * through the bss_info_changed() hook.
2433 */
830fb67b 2434 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags)) {
18f8d468 2435 wl1271_debug(DEBUG_PSM, "psm enabled");
d8c42c0c 2436 ret = wl1271_ps_set_mode(wl, STATION_POWER_SAVE_MODE,
8eab7b47 2437 wl->basic_rate, true);
af5e084b 2438 }
f5fc0f86 2439 } else if (!(conf->flags & IEEE80211_CONF_PS) &&
71449f8d 2440 test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) {
18f8d468 2441 wl1271_debug(DEBUG_PSM, "psm disabled");
f5fc0f86 2442
71449f8d 2443 clear_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags);
f5fc0f86 2444
71449f8d 2445 if (test_bit(WL1271_FLAG_PSM, &wl->flags))
d8c42c0c 2446 ret = wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE,
8eab7b47 2447 wl->basic_rate, true);
f5fc0f86
LC		 2448 }
2449
2450 if (conf->power_level != wl->power_level) {
2451 ret = wl1271_acx_tx_power(wl, conf->power_level);
2452 if (ret < 0)
c6317a54 2453 goto out_sleep;
f5fc0f86
LC		 2454
2455 wl->power_level = conf->power_level;
2456 }
2457
2458out_sleep:
2459 wl1271_ps_elp_sleep(wl);
2460
2461out:
2462 mutex_unlock(&wl->mutex);
2463
2464 return ret;
2465}
2466
b54853f1
JO		 2467struct wl1271_filter_params {
2468 bool enabled;
2469 int mc_list_length;
2470 u8 mc_list[ACX_MC_ADDRESS_GROUP_MAX][ETH_ALEN];
2471};
2472
22bedad3
JP		 2473static u64 wl1271_op_prepare_multicast(struct ieee80211_hw *hw,
2474 struct netdev_hw_addr_list *mc_list)
c87dec9f 2475{
c87dec9f 2476 struct wl1271_filter_params *fp;
22bedad3 2477 struct netdev_hw_addr *ha;
2c10bb9c 2478 struct wl1271 *wl = hw->priv;
c87dec9f 2479
2c10bb9c
SD		 2480 if (unlikely(wl->state == WL1271_STATE_OFF))
2481 return 0;
c87dec9f 2482
74441130 2483 fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
c87dec9f
JO		 2484 if (!fp) {
2485 wl1271_error("Out of memory setting filters.");
2486 return 0;
2487 }
2488
2489 /* update multicast filtering parameters */
c87dec9f 2490 fp->mc_list_length = 0;
22bedad3
JP		 2491 if (netdev_hw_addr_list_count(mc_list) > ACX_MC_ADDRESS_GROUP_MAX) {
2492 fp->enabled = false;
2493 } else {
2494 fp->enabled = true;
2495 netdev_hw_addr_list_for_each(ha, mc_list) {
c87dec9f 2496 memcpy(fp->mc_list[fp->mc_list_length],
22bedad3 2497 ha->addr, ETH_ALEN);
c87dec9f 2498 fp->mc_list_length++;
22bedad3 2499 }
c87dec9f
JO		 2500 }
2501
b54853f1 2502 return (u64)(unsigned long)fp;
c87dec9f 2503}
f5fc0f86 2504
b54853f1
JO		 2505#define WL1271_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
2506 FIF_ALLMULTI | \
2507 FIF_FCSFAIL | \
2508 FIF_BCN_PRBRESP_PROMISC | \
2509 FIF_CONTROL | \
2510 FIF_OTHER_BSS)
2511
f5fc0f86
LC		 2512static void wl1271_op_configure_filter(struct ieee80211_hw *hw,
2513 unsigned int changed,
c87dec9f 2514 unsigned int *total, u64 multicast)
f5fc0f86 2515{
b54853f1 2516 struct wl1271_filter_params *fp = (void *)(unsigned long)multicast;
f5fc0f86 2517 struct wl1271 *wl = hw->priv;
b54853f1 2518 int ret;
f5fc0f86 2519
7d057869
AN		 2520 wl1271_debug(DEBUG_MAC80211, "mac80211 configure filter changed %x"
2521 " total %x", changed, *total);
f5fc0f86 2522
b54853f1
JO		 2523 mutex_lock(&wl->mutex);
2524
2c10bb9c
SD		 2525 *total &= WL1271_SUPPORTED_FILTERS;
2526 changed &= WL1271_SUPPORTED_FILTERS;
2527
2528 if (unlikely(wl->state == WL1271_STATE_OFF))
b54853f1
JO		 2529 goto out;
2530
a620865e 2531 ret = wl1271_ps_elp_wakeup(wl);
b54853f1
JO		 2532 if (ret < 0)
2533 goto out;
2534
7d057869
AN		 2535 if (wl->bss_type != BSS_TYPE_AP_BSS) {
2536 if (*total & FIF_ALLMULTI)
2537 ret = wl1271_acx_group_address_tbl(wl, false, NULL, 0);
2538 else if (fp)
2539 ret = wl1271_acx_group_address_tbl(wl, fp->enabled,
2540 fp->mc_list,
2541 fp->mc_list_length);
2542 if (ret < 0)
2543 goto out_sleep;
2544 }
f5fc0f86 2545
08c1d1c7
EP		 2546 /*
2547 * the fw doesn't provide an api to configure the filters. instead,
2548 * the filters configuration is based on the active roles / ROC
2549 * state.
2550 */
b54853f1
JO		 2551
2552out_sleep:
2553 wl1271_ps_elp_sleep(wl);
2554
2555out:
2556 mutex_unlock(&wl->mutex);
14b228a0 2557 kfree(fp);
f5fc0f86
LC		 2558}
2559
7f179b46
AN		 2560static int wl1271_record_ap_key(struct wl1271 *wl, u8 id, u8 key_type,
2561 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
2562 u16 tx_seq_16)
2563{
2564 struct wl1271_ap_key *ap_key;
2565 int i;
2566
2567 wl1271_debug(DEBUG_CRYPT, "record ap key id %d", (int)id);
2568
2569 if (key_size > MAX_KEY_SIZE)
2570 return -EINVAL;
2571
2572 /*
2573 * Find next free entry in ap_keys. Also check we are not replacing
2574 * an existing key.
2575 */
2576 for (i = 0; i < MAX_NUM_KEYS; i++) {
2577 if (wl->recorded_ap_keys[i] == NULL)
2578 break;
2579
2580 if (wl->recorded_ap_keys[i]->id == id) {
2581 wl1271_warning("trying to record key replacement");
2582 return -EINVAL;
2583 }
2584 }
2585
2586 if (i == MAX_NUM_KEYS)
2587 return -EBUSY;
2588
2589 ap_key = kzalloc(sizeof(*ap_key), GFP_KERNEL);
2590 if (!ap_key)
2591 return -ENOMEM;
2592
2593 ap_key->id = id;
2594 ap_key->key_type = key_type;
2595 ap_key->key_size = key_size;
2596 memcpy(ap_key->key, key, key_size);
2597 ap_key->hlid = hlid;
2598 ap_key->tx_seq_32 = tx_seq_32;
2599 ap_key->tx_seq_16 = tx_seq_16;
2600
2601 wl->recorded_ap_keys[i] = ap_key;
2602 return 0;
2603}
2604
2605static void wl1271_free_ap_keys(struct wl1271 *wl)
2606{
2607 int i;
2608
2609 for (i = 0; i < MAX_NUM_KEYS; i++) {
2610 kfree(wl->recorded_ap_keys[i]);
2611 wl->recorded_ap_keys[i] = NULL;
2612 }
2613}
2614
2615static int wl1271_ap_init_hwenc(struct wl1271 *wl)
2616{
2617 int i, ret = 0;
2618 struct wl1271_ap_key *key;
2619 bool wep_key_added = false;
2620
2621 for (i = 0; i < MAX_NUM_KEYS; i++) {
7f97b487 2622 u8 hlid;
7f179b46
AN		 2623 if (wl->recorded_ap_keys[i] == NULL)
2624 break;
2625
2626 key = wl->recorded_ap_keys[i];
7f97b487
EP		 2627 hlid = key->hlid;
2628 if (hlid == WL12XX_INVALID_LINK_ID)
2629 hlid = wl->ap_bcast_hlid;
2630
7f179b46
AN		 2631 ret = wl1271_cmd_set_ap_key(wl, KEY_ADD_OR_REPLACE,
2632 key->id, key->key_type,
2633 key->key_size, key->key,
7f97b487 2634 hlid, key->tx_seq_32,
7f179b46
AN		 2635 key->tx_seq_16);
2636 if (ret < 0)
2637 goto out;
2638
2639 if (key->key_type == KEY_WEP)
2640 wep_key_added = true;
2641 }
2642
2643 if (wep_key_added) {
c690ec81 2644 ret = wl12xx_cmd_set_default_wep_key(wl, wl->default_key,
e51ae9be 2645 wl->ap_bcast_hlid);
7f179b46
AN		 2646 if (ret < 0)
2647 goto out;
2648 }
2649
2650out:
2651 wl1271_free_ap_keys(wl);
2652 return ret;
2653}
2654
2655static int wl1271_set_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
2656 u8 key_size, const u8 *key, u32 tx_seq_32,
2657 u16 tx_seq_16, struct ieee80211_sta *sta)
2658{
2659 int ret;
2660 bool is_ap = (wl->bss_type == BSS_TYPE_AP_BSS);
2661
2662 if (is_ap) {
2663 struct wl1271_station *wl_sta;
2664 u8 hlid;
2665
2666 if (sta) {
2667 wl_sta = (struct wl1271_station *)sta->drv_priv;
2668 hlid = wl_sta->hlid;
2669 } else {
e51ae9be 2670 hlid = wl->ap_bcast_hlid;
7f179b46
AN		 2671 }
2672
2673 if (!test_bit(WL1271_FLAG_AP_STARTED, &wl->flags)) {
2674 /*
2675 * We do not support removing keys after AP shutdown.
2676 * Pretend we do to make mac80211 happy.
2677 */
2678 if (action != KEY_ADD_OR_REPLACE)
2679 return 0;
2680
2681 ret = wl1271_record_ap_key(wl, id,
2682 key_type, key_size,
2683 key, hlid, tx_seq_32,
2684 tx_seq_16);
2685 } else {
2686 ret = wl1271_cmd_set_ap_key(wl, action,
2687 id, key_type, key_size,
2688 key, hlid, tx_seq_32,
2689 tx_seq_16);
2690 }
2691
2692 if (ret < 0)
2693 return ret;
2694 } else {
2695 const u8 *addr;
2696 static const u8 bcast_addr[ETH_ALEN] = {
2697 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
2698 };
2699
e9eb8cbe
GE		 2700 /*
2701 * A STA set to GEM cipher requires 2 tx spare blocks.
2702 * Return to default value when GEM cipher key is removed
2703 */
2704 if (key_type == KEY_GEM) {
2705 if (action == KEY_ADD_OR_REPLACE)
2706 wl->tx_spare_blocks = 2;
2707 else if (action == KEY_REMOVE)
2708 wl->tx_spare_blocks = TX_HW_BLOCK_SPARE_DEFAULT;
2709 }
2710
7f179b46
AN		 2711 addr = sta ? sta->addr : bcast_addr;
2712
2713 if (is_zero_ether_addr(addr)) {
2714 /* We dont support TX only encryption */
2715 return -EOPNOTSUPP;
2716 }
2717
2718 /* The wl1271 does not allow to remove unicast keys - they
2719 will be cleared automatically on next CMD_JOIN. Ignore the
2720 request silently, as we dont want the mac80211 to emit
2721 an error message. */
2722 if (action == KEY_REMOVE && !is_broadcast_ether_addr(addr))
2723 return 0;
2724
010d3d30
EP		 2725 /* don't remove key if hlid was already deleted */
2726 if (action == KEY_REMOVE &&
2727 wl->sta_hlid == WL12XX_INVALID_LINK_ID)
2728 return 0;
2729
7f179b46
AN		 2730 ret = wl1271_cmd_set_sta_key(wl, action,
2731 id, key_type, key_size,
2732 key, addr, tx_seq_32,
2733 tx_seq_16);
2734 if (ret < 0)
2735 return ret;
2736
2737 /* the default WEP key needs to be configured at least once */
2738 if (key_type == KEY_WEP) {
c690ec81
EP		 2739 ret = wl12xx_cmd_set_default_wep_key(wl,
2740 wl->default_key,
2741 wl->sta_hlid);
7f179b46
AN		 2742 if (ret < 0)
2743 return ret;
2744 }
2745 }
2746
2747 return 0;
2748}
2749
f5fc0f86
LC		 2750static int wl1271_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
2751 struct ieee80211_vif *vif,
2752 struct ieee80211_sta *sta,
2753 struct ieee80211_key_conf *key_conf)
2754{
2755 struct wl1271 *wl = hw->priv;
f5fc0f86 2756 int ret;
ac4e4ce5
JO		 2757 u32 tx_seq_32 = 0;
2758 u16 tx_seq_16 = 0;
f5fc0f86
LC		 2759 u8 key_type;
2760
f5fc0f86
LC		 2761 wl1271_debug(DEBUG_MAC80211, "mac80211 set key");
2762
7f179b46 2763 wl1271_debug(DEBUG_CRYPT, "CMD: 0x%x sta: %p", cmd, sta);
f5fc0f86 2764 wl1271_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x",
97359d12 2765 key_conf->cipher, key_conf->keyidx,
f5fc0f86
LC		 2766 key_conf->keylen, key_conf->flags);
2767 wl1271_dump(DEBUG_CRYPT, "KEY: ", key_conf->key, key_conf->keylen);
2768
f5fc0f86
LC		 2769 mutex_lock(&wl->mutex);
2770
f8d9802f
JO		 2771 if (unlikely(wl->state == WL1271_STATE_OFF)) {
2772 ret = -EAGAIN;
2773 goto out_unlock;
2774 }
2775
a620865e 2776 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 2777 if (ret < 0)
2778 goto out_unlock;
2779
97359d12
JB		 2780 switch (key_conf->cipher) {
2781 case WLAN_CIPHER_SUITE_WEP40:
2782 case WLAN_CIPHER_SUITE_WEP104:
f5fc0f86
LC		 2783 key_type = KEY_WEP;
2784
2785 key_conf->hw_key_idx = key_conf->keyidx;
2786 break;
97359d12 2787 case WLAN_CIPHER_SUITE_TKIP:
f5fc0f86
LC		 2788 key_type = KEY_TKIP;
2789
2790 key_conf->hw_key_idx = key_conf->keyidx;
04e36fc5
JO		 2791 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
2792 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
f5fc0f86 2793 break;
97359d12 2794 case WLAN_CIPHER_SUITE_CCMP:
f5fc0f86
LC		 2795 key_type = KEY_AES;
2796
2797 key_conf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
04e36fc5
JO		 2798 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
2799 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
f5fc0f86 2800 break;
7a55724e
JO		 2801 case WL1271_CIPHER_SUITE_GEM:
2802 key_type = KEY_GEM;
2803 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
2804 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
2805 break;
f5fc0f86 2806 default:
97359d12 2807 wl1271_error("Unknown key algo 0x%x", key_conf->cipher);
f5fc0f86
LC		 2808
2809 ret = -EOPNOTSUPP;
2810 goto out_sleep;
2811 }
2812
2813 switch (cmd) {
2814 case SET_KEY:
7f179b46
AN		 2815 ret = wl1271_set_key(wl, KEY_ADD_OR_REPLACE,
2816 key_conf->keyidx, key_type,
2817 key_conf->keylen, key_conf->key,
2818 tx_seq_32, tx_seq_16, sta);
f5fc0f86
LC		 2819 if (ret < 0) {
2820 wl1271_error("Could not add or replace key");
2821 goto out_sleep;
2822 }
2823 break;
2824
2825 case DISABLE_KEY:
7f179b46
AN		 2826 ret = wl1271_set_key(wl, KEY_REMOVE,
2827 key_conf->keyidx, key_type,
2828 key_conf->keylen, key_conf->key,
2829 0, 0, sta);
f5fc0f86
LC		 2830 if (ret < 0) {
2831 wl1271_error("Could not remove key");
2832 goto out_sleep;
2833 }
2834 break;
2835
2836 default:
2837 wl1271_error("Unsupported key cmd 0x%x", cmd);
2838 ret = -EOPNOTSUPP;
f5fc0f86
LC		 2839 break;
2840 }
2841
2842out_sleep:
2843 wl1271_ps_elp_sleep(wl);
2844
2845out_unlock:
2846 mutex_unlock(&wl->mutex);
2847
f5fc0f86
LC		 2848 return ret;
2849}
2850
2851static int wl1271_op_hw_scan(struct ieee80211_hw *hw,
a060bbfe 2852 struct ieee80211_vif *vif,
f5fc0f86
LC		 2853 struct cfg80211_scan_request *req)
2854{
2855 struct wl1271 *wl = hw->priv;
2856 int ret;
2857 u8 *ssid = NULL;
abb0b3bf 2858 size_t len = 0;
f5fc0f86
LC		 2859
2860 wl1271_debug(DEBUG_MAC80211, "mac80211 hw scan");
2861
2862 if (req->n_ssids) {
2863 ssid = req->ssids[0].ssid;
abb0b3bf 2864 len = req->ssids[0].ssid_len;
f5fc0f86
LC		 2865 }
2866
2867 mutex_lock(&wl->mutex);
2868
b739a42c
JO		 2869 if (wl->state == WL1271_STATE_OFF) {
2870 /*
2871 * We cannot return -EBUSY here because cfg80211 will expect
2872 * a call to ieee80211_scan_completed if we do - in this case
2873 * there won't be any call.
2874 */
2875 ret = -EAGAIN;
2876 goto out;
2877 }
2878
a620865e 2879 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 2880 if (ret < 0)
2881 goto out;
2882
251c177f
EP		 2883 /* cancel ROC before scanning */
2884 if (wl12xx_is_roc(wl)) {
2885 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags)) {
2886 /* don't allow scanning right now */
2887 ret = -EBUSY;
2888 goto out_sleep;
2889 }
2890 wl12xx_croc(wl, wl->dev_role_id);
2891 wl12xx_cmd_role_stop_dev(wl);
2892 }
f5fc0f86 2893
251c177f
EP		 2894 ret = wl1271_scan(hw->priv, ssid, len, req);
2895out_sleep:
f5fc0f86 2896 wl1271_ps_elp_sleep(wl);
f5fc0f86
LC		 2897out:
2898 mutex_unlock(&wl->mutex);
2899
2900 return ret;
2901}
2902
73ecce31
EP		 2903static void wl1271_op_cancel_hw_scan(struct ieee80211_hw *hw,
2904 struct ieee80211_vif *vif)
2905{
2906 struct wl1271 *wl = hw->priv;
2907 int ret;
2908
2909 wl1271_debug(DEBUG_MAC80211, "mac80211 cancel hw scan");
2910
2911 mutex_lock(&wl->mutex);
2912
2913 if (wl->state == WL1271_STATE_OFF)
2914 goto out;
2915
2916 if (wl->scan.state == WL1271_SCAN_STATE_IDLE)
2917 goto out;
2918
2919 ret = wl1271_ps_elp_wakeup(wl);
2920 if (ret < 0)
2921 goto out;
2922
2923 if (wl->scan.state != WL1271_SCAN_STATE_DONE) {
2924 ret = wl1271_scan_stop(wl);
2925 if (ret < 0)
2926 goto out_sleep;
2927 }
2928 wl->scan.state = WL1271_SCAN_STATE_IDLE;
2929 memset(wl->scan.scanned_ch, 0, sizeof(wl->scan.scanned_ch));
2930 wl->scan.req = NULL;
2931 ieee80211_scan_completed(wl->hw, true);
2932
2933out_sleep:
2934 wl1271_ps_elp_sleep(wl);
2935out:
2936 mutex_unlock(&wl->mutex);
2937
2938 cancel_delayed_work_sync(&wl->scan_complete_work);
2939}
2940
33c2c06c
LC		 2941static int wl1271_op_sched_scan_start(struct ieee80211_hw *hw,
2942 struct ieee80211_vif *vif,
2943 struct cfg80211_sched_scan_request *req,
2944 struct ieee80211_sched_scan_ies *ies)
2945{
2946 struct wl1271 *wl = hw->priv;
2947 int ret;
2948
2949 wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_start");
2950
2951 mutex_lock(&wl->mutex);
2952
2953 ret = wl1271_ps_elp_wakeup(wl);
2954 if (ret < 0)
2955 goto out;
2956
2957 ret = wl1271_scan_sched_scan_config(wl, req, ies);
2958 if (ret < 0)
2959 goto out_sleep;
2960
2961 ret = wl1271_scan_sched_scan_start(wl);
2962 if (ret < 0)
2963 goto out_sleep;
2964
2965 wl->sched_scanning = true;
2966
2967out_sleep:
2968 wl1271_ps_elp_sleep(wl);
2969out:
2970 mutex_unlock(&wl->mutex);
2971 return ret;
2972}
2973
2974static void wl1271_op_sched_scan_stop(struct ieee80211_hw *hw,
2975 struct ieee80211_vif *vif)
2976{
2977 struct wl1271 *wl = hw->priv;
2978 int ret;
2979
2980 wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_stop");
2981
2982 mutex_lock(&wl->mutex);
2983
2984 ret = wl1271_ps_elp_wakeup(wl);
2985 if (ret < 0)
2986 goto out;
2987
2988 wl1271_scan_sched_scan_stop(wl);
2989
2990 wl1271_ps_elp_sleep(wl);
2991out:
2992 mutex_unlock(&wl->mutex);
2993}
2994
68d069c4
AN		 2995static int wl1271_op_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
2996{
2997 struct wl1271 *wl = hw->priv;
2998 int ret = 0;
2999
3000 mutex_lock(&wl->mutex);
3001
3002 if (unlikely(wl->state == WL1271_STATE_OFF)) {
3003 ret = -EAGAIN;
3004 goto out;
3005 }
3006
a620865e 3007 ret = wl1271_ps_elp_wakeup(wl);
68d069c4
AN		 3008 if (ret < 0)
3009 goto out;
3010
5f704d18 3011 ret = wl1271_acx_frag_threshold(wl, value);
68d069c4
AN		 3012 if (ret < 0)
3013 wl1271_warning("wl1271_op_set_frag_threshold failed: %d", ret);
3014
3015 wl1271_ps_elp_sleep(wl);
3016
3017out:
3018 mutex_unlock(&wl->mutex);
3019
3020 return ret;
3021}
3022
f5fc0f86
LC		 3023static int wl1271_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
3024{
3025 struct wl1271 *wl = hw->priv;
aecb0565 3026 int ret = 0;
f5fc0f86
LC		 3027
3028 mutex_lock(&wl->mutex);
3029
f8d9802f
JO		 3030 if (unlikely(wl->state == WL1271_STATE_OFF)) {
3031 ret = -EAGAIN;
aecb0565 3032 goto out;
f8d9802f 3033 }
aecb0565 3034
a620865e 3035 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 3036 if (ret < 0)
3037 goto out;
3038
5f704d18 3039 ret = wl1271_acx_rts_threshold(wl, value);
f5fc0f86
LC		 3040 if (ret < 0)
3041 wl1271_warning("wl1271_op_set_rts_threshold failed: %d", ret);
3042
3043 wl1271_ps_elp_sleep(wl);
3044
3045out:
3046 mutex_unlock(&wl->mutex);
3047
3048 return ret;
3049}
3050
e78a287a 3051static int wl1271_ssid_set(struct wl1271 *wl, struct sk_buff *skb,
2f6724b2 3052 int offset)
30240fc7 3053{
889cb360
EP		 3054 u8 ssid_len;
3055 const u8 *ptr = cfg80211_find_ie(WLAN_EID_SSID, skb->data + offset,
3056 skb->len - offset);
30240fc7 3057
889cb360
EP		 3058 if (!ptr) {
3059 wl1271_error("No SSID in IEs!");
3060 return -ENOENT;
3061 }
3062
3063 ssid_len = ptr[1];
3064 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
3065 wl1271_error("SSID is too long!");
3066 return -EINVAL;
30240fc7 3067 }
e78a287a 3068
889cb360
EP		 3069 wl->ssid_len = ssid_len;
3070 memcpy(wl->ssid, ptr+2, ssid_len);
3071 return 0;
30240fc7
JO		 3072}
3073
d48055d9
EP		 3074static void wl12xx_remove_ie(struct sk_buff *skb, u8 eid, int ieoffset)
3075{
3076 int len;
3077 const u8 *next, *end = skb->data + skb->len;
3078 u8 *ie = (u8 *)cfg80211_find_ie(eid, skb->data + ieoffset,
3079 skb->len - ieoffset);
3080 if (!ie)
3081 return;
3082 len = ie[1] + 2;
3083 next = ie + len;
3084 memmove(ie, next, end - next);
3085 skb_trim(skb, skb->len - len);
3086}
3087
26b4bf2e
EP		 3088static void wl12xx_remove_vendor_ie(struct sk_buff *skb,
3089 unsigned int oui, u8 oui_type,
3090 int ieoffset)
3091{
3092 int len;
3093 const u8 *next, *end = skb->data + skb->len;
3094 u8 *ie = (u8 *)cfg80211_find_vendor_ie(oui, oui_type,
3095 skb->data + ieoffset,
3096 skb->len - ieoffset);
3097 if (!ie)
3098 return;
3099 len = ie[1] + 2;
3100 next = ie + len;
3101 memmove(ie, next, end - next);
3102 skb_trim(skb, skb->len - len);
3103}
3104
68eaaf6e
AN		 3105static int wl1271_ap_set_probe_resp_tmpl(struct wl1271 *wl,
3106 u8 *probe_rsp_data,
3107 size_t probe_rsp_len,
3108 u32 rates)
3109{
3110 struct ieee80211_bss_conf *bss_conf = &wl->vif->bss_conf;
3111 u8 probe_rsp_templ[WL1271_CMD_TEMPL_MAX_SIZE];
3112 int ssid_ie_offset, ie_offset, templ_len;
3113 const u8 *ptr;
3114
3115 /* no need to change probe response if the SSID is set correctly */
3116 if (wl->ssid_len > 0)
3117 return wl1271_cmd_template_set(wl,
3118 CMD_TEMPL_AP_PROBE_RESPONSE,
3119 probe_rsp_data,
3120 probe_rsp_len, 0,
3121 rates);
3122
3123 if (probe_rsp_len + bss_conf->ssid_len > WL1271_CMD_TEMPL_MAX_SIZE) {
3124 wl1271_error("probe_rsp template too big");
3125 return -EINVAL;
3126 }
3127
3128 /* start searching from IE offset */
3129 ie_offset = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
3130
3131 ptr = cfg80211_find_ie(WLAN_EID_SSID, probe_rsp_data + ie_offset,
3132 probe_rsp_len - ie_offset);
3133 if (!ptr) {
3134 wl1271_error("No SSID in beacon!");
3135 return -EINVAL;
3136 }
3137
3138 ssid_ie_offset = ptr - probe_rsp_data;
3139 ptr += (ptr[1] + 2);
3140
3141 memcpy(probe_rsp_templ, probe_rsp_data, ssid_ie_offset);
3142
3143 /* insert SSID from bss_conf */
3144 probe_rsp_templ[ssid_ie_offset] = WLAN_EID_SSID;
3145 probe_rsp_templ[ssid_ie_offset + 1] = bss_conf->ssid_len;
3146 memcpy(probe_rsp_templ + ssid_ie_offset + 2,
3147 bss_conf->ssid, bss_conf->ssid_len);
3148 templ_len = ssid_ie_offset + 2 + bss_conf->ssid_len;
3149
3150 memcpy(probe_rsp_templ + ssid_ie_offset + 2 + bss_conf->ssid_len,
3151 ptr, probe_rsp_len - (ptr - probe_rsp_data));
3152 templ_len += probe_rsp_len - (ptr - probe_rsp_data);
3153
3154 return wl1271_cmd_template_set(wl,
3155 CMD_TEMPL_AP_PROBE_RESPONSE,
3156 probe_rsp_templ,
3157 templ_len, 0,
3158 rates);
3159}
3160
e78a287a 3161static int wl1271_bss_erp_info_changed(struct wl1271 *wl,
f5fc0f86
LC		 3162 struct ieee80211_bss_conf *bss_conf,
3163 u32 changed)
3164{
e78a287a 3165 int ret = 0;
f5fc0f86 3166
e78a287a
AN		 3167 if (changed & BSS_CHANGED_ERP_SLOT) {
3168 if (bss_conf->use_short_slot)
3169 ret = wl1271_acx_slot(wl, SLOT_TIME_SHORT);
3170 else
3171 ret = wl1271_acx_slot(wl, SLOT_TIME_LONG);
3172 if (ret < 0) {
3173 wl1271_warning("Set slot time failed %d", ret);
3174 goto out;
3175 }
3176 }
f5fc0f86 3177
e78a287a
AN		 3178 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
3179 if (bss_conf->use_short_preamble)
3180 wl1271_acx_set_preamble(wl, ACX_PREAMBLE_SHORT);
3181 else
3182 wl1271_acx_set_preamble(wl, ACX_PREAMBLE_LONG);
3183 }
f5fc0f86 3184
e78a287a
AN		 3185 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
3186 if (bss_conf->use_cts_prot)
3187 ret = wl1271_acx_cts_protect(wl, CTSPROTECT_ENABLE);
3188 else
3189 ret = wl1271_acx_cts_protect(wl, CTSPROTECT_DISABLE);
3190 if (ret < 0) {
3191 wl1271_warning("Set ctsprotect failed %d", ret);
3192 goto out;
3193 }
3194 }
f8d9802f 3195
e78a287a
AN		 3196out:
3197 return ret;
3198}
f5fc0f86 3199
e78a287a
AN		 3200static int wl1271_bss_beacon_info_changed(struct wl1271 *wl,
3201 struct ieee80211_vif *vif,
3202 struct ieee80211_bss_conf *bss_conf,
3203 u32 changed)
3204{
3205 bool is_ap = (wl->bss_type == BSS_TYPE_AP_BSS);
3206 int ret = 0;
3207
3208 if ((changed & BSS_CHANGED_BEACON_INT)) {
3209 wl1271_debug(DEBUG_MASTER, "beacon interval updated: %d",
60e84c2e
JO		 3210 bss_conf->beacon_int);
3211
3212 wl->beacon_int = bss_conf->beacon_int;
60e84c2e
JO		 3213 }
3214
e78a287a
AN		 3215 if ((changed & BSS_CHANGED_BEACON)) {
3216 struct ieee80211_hdr *hdr;
3217 int ieoffset = offsetof(struct ieee80211_mgmt,
3218 u.beacon.variable);
3219 struct sk_buff *beacon = ieee80211_beacon_get(wl->hw, vif);
3220 u16 tmpl_id;
3221
3222 if (!beacon)
3223 goto out;
3224
3225 wl1271_debug(DEBUG_MASTER, "beacon updated");
3226
3227 ret = wl1271_ssid_set(wl, beacon, ieoffset);
3228 if (ret < 0) {
3229 dev_kfree_skb(beacon);
3230 goto out;
3231 }
3232 tmpl_id = is_ap ? CMD_TEMPL_AP_BEACON :
3233 CMD_TEMPL_BEACON;
3234 ret = wl1271_cmd_template_set(wl, tmpl_id,
3235 beacon->data,
3236 beacon->len, 0,
3237 wl1271_tx_min_rate_get(wl));
3238 if (ret < 0) {
3239 dev_kfree_skb(beacon);
3240 goto out;
3241 }
3242
d48055d9
EP		 3243 /* remove TIM ie from probe response */
3244 wl12xx_remove_ie(beacon, WLAN_EID_TIM, ieoffset);
3245
26b4bf2e
EP		 3246 /*
3247 * remove p2p ie from probe response.
3248 * the fw reponds to probe requests that don't include
3249 * the p2p ie. probe requests with p2p ie will be passed,
3250 * and will be responded by the supplicant (the spec
3251 * forbids including the p2p ie when responding to probe
3252 * requests that didn't include it).
3253 */
3254 wl12xx_remove_vendor_ie(beacon, WLAN_OUI_WFA,
3255 WLAN_OUI_TYPE_WFA_P2P, ieoffset);
3256
e78a287a
AN		 3257 hdr = (struct ieee80211_hdr *) beacon->data;
3258 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3259 IEEE80211_STYPE_PROBE_RESP);
68eaaf6e
AN		 3260 if (is_ap)
3261 ret = wl1271_ap_set_probe_resp_tmpl(wl,
3262 beacon->data,
3263 beacon->len,
3264 wl1271_tx_min_rate_get(wl));
3265 else
3266 ret = wl1271_cmd_template_set(wl,
3267 CMD_TEMPL_PROBE_RESPONSE,
3268 beacon->data,
3269 beacon->len, 0,
3270 wl1271_tx_min_rate_get(wl));
e78a287a
AN		 3271 dev_kfree_skb(beacon);
3272 if (ret < 0)
3273 goto out;
3274 }
3275
3276out:
3277 return ret;
3278}
3279
3280/* AP mode changes */
3281static void wl1271_bss_info_changed_ap(struct wl1271 *wl,
3282 struct ieee80211_vif *vif,
3283 struct ieee80211_bss_conf *bss_conf,
3284 u32 changed)
3285{
3286 int ret = 0;
e0d8bbf0 3287
e78a287a
AN		 3288 if ((changed & BSS_CHANGED_BASIC_RATES)) {
3289 u32 rates = bss_conf->basic_rates;
5da11dcd 3290
e78a287a
AN		 3291 wl->basic_rate_set = wl1271_tx_enabled_rates_get(wl, rates);
3292 wl->basic_rate = wl1271_tx_min_rate_get(wl);
70f47424
AN		 3293
3294 ret = wl1271_init_ap_rates(wl);
e78a287a 3295 if (ret < 0) {
70f47424 3296 wl1271_error("AP rate policy change failed %d", ret);
e78a287a
AN		 3297 goto out;
3298 }
c45a85b5
AN		 3299
3300 ret = wl1271_ap_init_templates(wl);
3301 if (ret < 0)
3302 goto out;
e78a287a 3303 }
2f6724b2 3304
e78a287a
AN		 3305 ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf, changed);
3306 if (ret < 0)
3307 goto out;
30240fc7 3308
e78a287a
AN		 3309 if ((changed & BSS_CHANGED_BEACON_ENABLED)) {
3310 if (bss_conf->enable_beacon) {
3311 if (!test_bit(WL1271_FLAG_AP_STARTED, &wl->flags)) {
c690ec81 3312 ret = wl12xx_cmd_role_start_ap(wl);
e78a287a
AN		 3313 if (ret < 0)
3314 goto out;
e0d8bbf0 3315
7f179b46
AN		 3316 ret = wl1271_ap_init_hwenc(wl);
3317 if (ret < 0)
3318 goto out;
cf42039f
AN		 3319
3320 set_bit(WL1271_FLAG_AP_STARTED, &wl->flags);
3321 wl1271_debug(DEBUG_AP, "started AP");
e0d8bbf0 3322 }
e78a287a
AN		 3323 } else {
3324 if (test_bit(WL1271_FLAG_AP_STARTED, &wl->flags)) {
c690ec81 3325 ret = wl12xx_cmd_role_stop_ap(wl);
e78a287a
AN		 3326 if (ret < 0)
3327 goto out;
e0d8bbf0 3328
e78a287a
AN		 3329 clear_bit(WL1271_FLAG_AP_STARTED, &wl->flags);
3330 wl1271_debug(DEBUG_AP, "stopped AP");
3331 }
3332 }
3333 }
e0d8bbf0 3334
e78a287a
AN		 3335 ret = wl1271_bss_erp_info_changed(wl, bss_conf, changed);
3336 if (ret < 0)
3337 goto out;
0b932ab9
AN		 3338
3339 /* Handle HT information change */
3340 if ((changed & BSS_CHANGED_HT) &&
3341 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
3342 ret = wl1271_acx_set_ht_information(wl,
3343 bss_conf->ht_operation_mode);
3344 if (ret < 0) {
3345 wl1271_warning("Set ht information failed %d", ret);
3346 goto out;
3347 }
3348 }
3349
e78a287a
AN		 3350out:
3351 return;
3352}
8bf29b0e 3353
e78a287a
AN		 3354/* STA/IBSS mode changes */
3355static void wl1271_bss_info_changed_sta(struct wl1271 *wl,
3356 struct ieee80211_vif *vif,
3357 struct ieee80211_bss_conf *bss_conf,
3358 u32 changed)
3359{
3360 bool do_join = false, set_assoc = false;
3361 bool is_ibss = (wl->bss_type == BSS_TYPE_IBSS);
227e81e1 3362 bool ibss_joined = false;
72c2d9e5 3363 u32 sta_rate_set = 0;
e78a287a 3364 int ret;
2d6e4e76 3365 struct ieee80211_sta *sta;
a100885d
AN		 3366 bool sta_exists = false;
3367 struct ieee80211_sta_ht_cap sta_ht_cap;
e78a287a
AN		 3368
3369 if (is_ibss) {
3370 ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf,
3371 changed);
3372 if (ret < 0)
3373 goto out;
e0d8bbf0
JO		 3374 }
3375
227e81e1
EP		 3376 if (changed & BSS_CHANGED_IBSS) {
3377 if (bss_conf->ibss_joined) {
3378 set_bit(WL1271_FLAG_IBSS_JOINED, &wl->flags);
3379 ibss_joined = true;
3380 } else {
3381 if (test_and_clear_bit(WL1271_FLAG_IBSS_JOINED,
3382 &wl->flags)) {
3383 wl1271_unjoin(wl);
3384 wl12xx_cmd_role_start_dev(wl);
3385 wl12xx_roc(wl, wl->dev_role_id);
3386 }
3387 }
3388 }
3389
3390 if ((changed & BSS_CHANGED_BEACON_INT) && ibss_joined)
e78a287a
AN		 3391 do_join = true;
3392
3393 /* Need to update the SSID (for filtering etc) */
227e81e1 3394 if ((changed & BSS_CHANGED_BEACON) && ibss_joined)
e78a287a
AN		 3395 do_join = true;
3396
227e81e1 3397 if ((changed & BSS_CHANGED_BEACON_ENABLED) && ibss_joined) {
5da11dcd
JO		 3398 wl1271_debug(DEBUG_ADHOC, "ad-hoc beaconing: %s",
3399 bss_conf->enable_beacon ? "enabled" : "disabled");
3400
3401 if (bss_conf->enable_beacon)
3402 wl->set_bss_type = BSS_TYPE_IBSS;
3403 else
3404 wl->set_bss_type = BSS_TYPE_STA_BSS;
3405 do_join = true;
3406 }
3407
e78a287a 3408 if ((changed & BSS_CHANGED_CQM)) {
00236aed
JO		 3409 bool enable = false;
3410 if (bss_conf->cqm_rssi_thold)
3411 enable = true;
3412 ret = wl1271_acx_rssi_snr_trigger(wl, enable,
3413 bss_conf->cqm_rssi_thold,
3414 bss_conf->cqm_rssi_hyst);
3415 if (ret < 0)
3416 goto out;
3417 wl->rssi_thold = bss_conf->cqm_rssi_thold;
3418 }
3419
30240fc7
JO		 3420 if ((changed & BSS_CHANGED_BSSID) &&
3421 /*
3422 * Now we know the correct bssid, so we send a new join command
3423 * and enable the BSSID filter
3424 */
3425 memcmp(wl->bssid, bss_conf->bssid, ETH_ALEN)) {
e78a287a 3426 memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN);
a0cb7be4 3427
fa287b8f
EP		 3428 if (!is_zero_ether_addr(wl->bssid)) {
3429 ret = wl1271_cmd_build_null_data(wl);
3430 if (ret < 0)
3431 goto out;
30240fc7 3432
fa287b8f
EP		 3433 ret = wl1271_build_qos_null_data(wl);
3434 if (ret < 0)
3435 goto out;
30240fc7 3436
fa287b8f
EP		 3437 /* Need to update the BSSID (for filtering etc) */
3438 do_join = true;
3439 }
30240fc7
JO		 3440 }
3441
0f9c8250
AN		 3442 if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_HT)) {
3443 rcu_read_lock();
3444 sta = ieee80211_find_sta(vif, bss_conf->bssid);
3445 if (!sta)
3446 goto sta_not_found;
3447
72c2d9e5
EP		 3448 /* save the supp_rates of the ap */
3449 sta_rate_set = sta->supp_rates[wl->hw->conf.channel->band];
3450 if (sta->ht_cap.ht_supported)
3451 sta_rate_set |=
3452 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET);
a100885d
AN		 3453 sta_ht_cap = sta->ht_cap;
3454 sta_exists = true;
72c2d9e5 3455
0f9c8250
AN		 3456sta_not_found:
3457 rcu_read_unlock();
72c2d9e5 3458 }
72c2d9e5 3459
e78a287a 3460 if ((changed & BSS_CHANGED_ASSOC)) {
f5fc0f86 3461 if (bss_conf->assoc) {
ebba60c6 3462 u32 rates;
2f6724b2 3463 int ieoffset;
f5fc0f86 3464 wl->aid = bss_conf->aid;
69e5434c 3465 set_assoc = true;
f5fc0f86 3466
90494a90
JO		 3467 wl->ps_poll_failures = 0;
3468
ebba60c6
JO		 3469 /*
3470 * use basic rates from AP, and determine lowest rate
3471 * to use with control frames.
3472 */
3473 rates = bss_conf->basic_rates;
3474 wl->basic_rate_set = wl1271_tx_enabled_rates_get(wl,
3475 rates);
e0fe371b 3476 wl->basic_rate = wl1271_tx_min_rate_get(wl);
72c2d9e5
EP		 3477 if (sta_rate_set)
3478 wl->rate_set = wl1271_tx_enabled_rates_get(wl,
3479 sta_rate_set);
79b223f4 3480 ret = wl1271_acx_sta_rate_policies(wl);
ebba60c6 3481 if (ret < 0)
e78a287a 3482 goto out;
ebba60c6 3483
ae751bab
LC		 3484 /*
3485 * with wl1271, we don't need to update the
3486 * beacon_int and dtim_period, because the firmware
3487 * updates it by itself when the first beacon is
3488 * received after a join.
3489 */
f5fc0f86
LC		 3490 ret = wl1271_cmd_build_ps_poll(wl, wl->aid);
3491 if (ret < 0)
e78a287a 3492 goto out;
f5fc0f86 3493
c2b2d99b 3494 /*
2f6724b2 3495 * Get a template for hardware connection maintenance
c2b2d99b 3496 */
2f6724b2
JO		 3497 dev_kfree_skb(wl->probereq);
3498 wl->probereq = wl1271_cmd_build_ap_probe_req(wl, NULL);
3499 ieoffset = offsetof(struct ieee80211_mgmt,
3500 u.probe_req.variable);
3501 wl1271_ssid_set(wl, wl->probereq, ieoffset);
c2b2d99b 3502
6ccbb92e
JO		 3503 /* enable the connection monitoring feature */
3504 ret = wl1271_acx_conn_monit_params(wl, true);
f5fc0f86 3505 if (ret < 0)
e78a287a 3506 goto out;
d94cd297
JO		 3507 } else {
3508 /* use defaults when not associated */
30df14d0
EP		 3509 bool was_assoc =
3510 !!test_and_clear_bit(WL1271_FLAG_STA_ASSOCIATED,
3511 &wl->flags);
251c177f
EP		 3512 bool was_ifup =
3513 !!test_and_clear_bit(WL1271_FLAG_STA_STATE_SENT,
3514 &wl->flags);
d94cd297 3515 wl->aid = 0;
6ccbb92e 3516
2f6724b2
JO		 3517 /* free probe-request template */
3518 dev_kfree_skb(wl->probereq);
3519 wl->probereq = NULL;
3520
8d2ef7bd 3521 /* re-enable dynamic ps - just in case */
f532be6d 3522 ieee80211_enable_dyn_ps(wl->vif);
8d2ef7bd 3523
ebba60c6
JO		 3524 /* revert back to minimum rates for the current band */
3525 wl1271_set_band_rate(wl);
e0fe371b 3526 wl->basic_rate = wl1271_tx_min_rate_get(wl);
79b223f4 3527 ret = wl1271_acx_sta_rate_policies(wl);
ebba60c6 3528 if (ret < 0)
e78a287a 3529 goto out;
ebba60c6 3530
6ccbb92e
JO		 3531 /* disable connection monitor features */
3532 ret = wl1271_acx_conn_monit_params(wl, false);
c1899554
JO		 3533
3534 /* Disable the keep-alive feature */
3535 ret = wl1271_acx_keep_alive_mode(wl, false);
6ccbb92e 3536 if (ret < 0)
e78a287a 3537 goto out;
b84a7d3d
JO		 3538
3539 /* restore the bssid filter and go to dummy bssid */
30df14d0 3540 if (was_assoc) {
251c177f
EP		 3541 u32 conf_flags = wl->hw->conf.flags;
3542 /*
3543 * we might have to disable roc, if there was
3544 * no IF_OPER_UP notification.
3545 */
3546 if (!was_ifup) {
3547 ret = wl12xx_croc(wl, wl->role_id);
3548 if (ret < 0)
3549 goto out;
3550 }
3551 /*
3552 * (we also need to disable roc in case of
3553 * roaming on the same channel. until we will
3554 * have a better flow...)
3555 */
3556 if (test_bit(wl->dev_role_id, wl->roc_map)) {
3557 ret = wl12xx_croc(wl, wl->dev_role_id);
3558 if (ret < 0)
3559 goto out;
3560 }
3561
30df14d0 3562 wl1271_unjoin(wl);
251c177f
EP		 3563 if (!(conf_flags & IEEE80211_CONF_IDLE)) {
3564 wl12xx_cmd_role_start_dev(wl);
3565 wl12xx_roc(wl, wl->dev_role_id);
3566 }
30df14d0 3567 }
f5fc0f86 3568 }
f5fc0f86
LC		 3569 }
3570
d192d268
EP		 3571 if (changed & BSS_CHANGED_IBSS) {
3572 wl1271_debug(DEBUG_ADHOC, "ibss_joined: %d",
3573 bss_conf->ibss_joined);
3574
3575 if (bss_conf->ibss_joined) {
3576 u32 rates = bss_conf->basic_rates;
3577 wl->basic_rate_set = wl1271_tx_enabled_rates_get(wl,
3578 rates);
3579 wl->basic_rate = wl1271_tx_min_rate_get(wl);
3580
06b660e1 3581 /* by default, use 11b + OFDM rates */
d192d268
EP		 3582 wl->rate_set = CONF_TX_IBSS_DEFAULT_RATES;
3583 ret = wl1271_acx_sta_rate_policies(wl);
3584 if (ret < 0)
3585 goto out;
3586 }
3587 }
3588
e78a287a
AN		 3589 ret = wl1271_bss_erp_info_changed(wl, bss_conf, changed);
3590 if (ret < 0)
3591 goto out;
f5fc0f86 3592
ca52a5eb
JO		 3593 if (changed & BSS_CHANGED_ARP_FILTER) {
3594 __be32 addr = bss_conf->arp_addr_list[0];
3595 WARN_ON(wl->bss_type != BSS_TYPE_STA_BSS);
3596
c5312772
EP		 3597 if (bss_conf->arp_addr_cnt == 1 &&
3598 bss_conf->arp_filter_enabled) {
3599 /*
3600 * The template should have been configured only upon
3601 * association. however, it seems that the correct ip
3602 * isn't being set (when sending), so we have to
3603 * reconfigure the template upon every ip change.
3604 */
3605 ret = wl1271_cmd_build_arp_rsp(wl, addr);
3606 if (ret < 0) {
3607 wl1271_warning("build arp rsp failed: %d", ret);
e78a287a 3608 goto out;
c5312772
EP		 3609 }
3610
3611 ret = wl1271_acx_arp_ip_filter(wl,
e5e2f24b 3612 ACX_ARP_FILTER_ARP_FILTERING,
c5312772
EP		 3613 addr);
3614 } else
3615 ret = wl1271_acx_arp_ip_filter(wl, 0, addr);
ca52a5eb
JO		 3616
3617 if (ret < 0)
e78a287a 3618 goto out;
ca52a5eb
JO		 3619 }
3620
8bf29b0e 3621 if (do_join) {
69e5434c 3622 ret = wl1271_join(wl, set_assoc);
8bf29b0e
JO		 3623 if (ret < 0) {
3624 wl1271_warning("cmd join failed %d", ret);
e78a287a 3625 goto out;
8bf29b0e 3626 }
251c177f
EP		 3627
3628 /* ROC until connected (after EAPOL exchange) */
3629 if (!is_ibss) {
3630 ret = wl12xx_roc(wl, wl->role_id);
3631 if (ret < 0)
3632 goto out;
3633
3634 wl1271_check_operstate(wl,
3635 ieee80211_get_operstate(vif));
3636 }
3637 /*
3638 * stop device role if started (we might already be in
3639 * STA role). TODO: make it better.
3640 */
3641 if (wl->dev_role_id != WL12XX_INVALID_ROLE_ID) {
3642 ret = wl12xx_croc(wl, wl->dev_role_id);
3643 if (ret < 0)
3644 goto out;
3645
3646 ret = wl12xx_cmd_role_stop_dev(wl);
3647 if (ret < 0)
3648 goto out;
3649 }
05dba355
EP		 3650
3651 /* If we want to go in PSM but we're not there yet */
3652 if (test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags) &&
3653 !test_bit(WL1271_FLAG_PSM, &wl->flags)) {
3654 enum wl1271_cmd_ps_mode mode;
3655
3656 mode = STATION_POWER_SAVE_MODE;
3657 ret = wl1271_ps_set_mode(wl, mode,
3658 wl->basic_rate,
3659 true);
3660 if (ret < 0)
3661 goto out;
3662 }
c1899554
JO		 3663 }
3664
0b932ab9 3665 /* Handle new association with HT. Do this after join. */
0f9c8250
AN		 3666 if (sta_exists) {
3667 if ((changed & BSS_CHANGED_HT) &&
3668 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
0b932ab9
AN		 3669 ret = wl1271_acx_set_ht_capabilities(wl,
3670 &sta_ht_cap,
3671 true,
3672 wl->sta_hlid);
0f9c8250
AN		 3673 if (ret < 0) {
3674 wl1271_warning("Set ht cap true failed %d",
3675 ret);
3676 goto out;
3677 }
3678 }
3679 /* handle new association without HT and disassociation */
3680 else if (changed & BSS_CHANGED_ASSOC) {
0b932ab9
AN		 3681 ret = wl1271_acx_set_ht_capabilities(wl,
3682 &sta_ht_cap,
3683 false,
3684 wl->sta_hlid);
0f9c8250
AN		 3685 if (ret < 0) {
3686 wl1271_warning("Set ht cap false failed %d",
3687 ret);
3688 goto out;
3689 }
3690 }
3691 }
3692
0b932ab9
AN		 3693 /* Handle HT information change. Done after join. */
3694 if ((changed & BSS_CHANGED_HT) &&
0f9c8250
AN		 3695 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
3696 ret = wl1271_acx_set_ht_information(wl,
3697 bss_conf->ht_operation_mode);
3698 if (ret < 0) {
3699 wl1271_warning("Set ht information failed %d", ret);
3700 goto out;
3701 }
3702 }
3703
e78a287a
AN		 3704out:
3705 return;
3706}
3707
3708static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
3709 struct ieee80211_vif *vif,
3710 struct ieee80211_bss_conf *bss_conf,
3711 u32 changed)
3712{
3713 struct wl1271 *wl = hw->priv;
3714 bool is_ap = (wl->bss_type == BSS_TYPE_AP_BSS);
3715 int ret;
3716
3717 wl1271_debug(DEBUG_MAC80211, "mac80211 bss info changed 0x%x",
3718 (int)changed);
3719
3720 mutex_lock(&wl->mutex);
3721
3722 if (unlikely(wl->state == WL1271_STATE_OFF))
3723 goto out;
3724
a620865e 3725 ret = wl1271_ps_elp_wakeup(wl);
e78a287a
AN		 3726 if (ret < 0)
3727 goto out;
3728
3729 if (is_ap)
3730 wl1271_bss_info_changed_ap(wl, vif, bss_conf, changed);
3731 else
3732 wl1271_bss_info_changed_sta(wl, vif, bss_conf, changed);
3733
f5fc0f86
LC		 3734 wl1271_ps_elp_sleep(wl);
3735
3736out:
3737 mutex_unlock(&wl->mutex);
3738}
3739
c6999d83
KV		 3740static int wl1271_op_conf_tx(struct ieee80211_hw *hw, u16 queue,
3741 const struct ieee80211_tx_queue_params *params)
3742{
3743 struct wl1271 *wl = hw->priv;
4695dc91 3744 u8 ps_scheme;
488fc540 3745 int ret = 0;
c6999d83
KV		 3746
3747 mutex_lock(&wl->mutex);
3748
3749 wl1271_debug(DEBUG_MAC80211, "mac80211 conf tx %d", queue);
3750
4695dc91
KV		 3751 if (params->uapsd)
3752 ps_scheme = CONF_PS_SCHEME_UPSD_TRIGGER;
3753 else
3754 ps_scheme = CONF_PS_SCHEME_LEGACY;
3755
488fc540
AN		 3756 if (wl->state == WL1271_STATE_OFF) {
3757 /*
3758 * If the state is off, the parameters will be recorded and
3759 * configured on init. This happens in AP-mode.
3760 */
3761 struct conf_tx_ac_category *conf_ac =
3762 &wl->conf.tx.ac_conf[wl1271_tx_get_queue(queue)];
3763 struct conf_tx_tid *conf_tid =
3764 &wl->conf.tx.tid_conf[wl1271_tx_get_queue(queue)];
3765
3766 conf_ac->ac = wl1271_tx_get_queue(queue);
3767 conf_ac->cw_min = (u8)params->cw_min;
3768 conf_ac->cw_max = params->cw_max;
3769 conf_ac->aifsn = params->aifs;
3770 conf_ac->tx_op_limit = params->txop << 5;
3771
3772 conf_tid->queue_id = wl1271_tx_get_queue(queue);
3773 conf_tid->channel_type = CONF_CHANNEL_TYPE_EDCF;
3774 conf_tid->tsid = wl1271_tx_get_queue(queue);
3775 conf_tid->ps_scheme = ps_scheme;
3776 conf_tid->ack_policy = CONF_ACK_POLICY_LEGACY;
3777 conf_tid->apsd_conf[0] = 0;
3778 conf_tid->apsd_conf[1] = 0;
c1b193eb
EP		 3779 goto out;
3780 }
488fc540 3781
c1b193eb
EP		 3782 ret = wl1271_ps_elp_wakeup(wl);
3783 if (ret < 0)
3784 goto out;
488fc540 3785
c1b193eb
EP		 3786 /*
3787 * the txop is confed in units of 32us by the mac80211,
3788 * we need us
3789 */
3790 ret = wl1271_acx_ac_cfg(wl, wl1271_tx_get_queue(queue),
3791 params->cw_min, params->cw_max,
3792 params->aifs, params->txop << 5);
3793 if (ret < 0)
3794 goto out_sleep;
3795
3796 ret = wl1271_acx_tid_cfg(wl, wl1271_tx_get_queue(queue),
3797 CONF_CHANNEL_TYPE_EDCF,
3798 wl1271_tx_get_queue(queue),
3799 ps_scheme, CONF_ACK_POLICY_LEGACY,
3800 0, 0);
c82c1dde
KV		 3801
3802out_sleep:
c1b193eb 3803 wl1271_ps_elp_sleep(wl);
c6999d83
KV		 3804
3805out:
3806 mutex_unlock(&wl->mutex);
3807
3808 return ret;
3809}
3810
bbbb538e
JO		 3811static u64 wl1271_op_get_tsf(struct ieee80211_hw *hw)
3812{
3813
3814 struct wl1271 *wl = hw->priv;
3815 u64 mactime = ULLONG_MAX;
3816 int ret;
3817
3818 wl1271_debug(DEBUG_MAC80211, "mac80211 get tsf");
3819
3820 mutex_lock(&wl->mutex);
3821
f8d9802f
JO		 3822 if (unlikely(wl->state == WL1271_STATE_OFF))
3823 goto out;
3824
a620865e 3825 ret = wl1271_ps_elp_wakeup(wl);
bbbb538e
JO		 3826 if (ret < 0)
3827 goto out;
3828
3829 ret = wl1271_acx_tsf_info(wl, &mactime);
3830 if (ret < 0)
3831 goto out_sleep;
3832
3833out_sleep:
3834 wl1271_ps_elp_sleep(wl);
3835
3836out:
3837 mutex_unlock(&wl->mutex);
3838 return mactime;
3839}
f5fc0f86 3840
ece550d0
JL		 3841static int wl1271_op_get_survey(struct ieee80211_hw *hw, int idx,
3842 struct survey_info *survey)
3843{
3844 struct wl1271 *wl = hw->priv;
3845 struct ieee80211_conf *conf = &hw->conf;
b739a42c 3846
ece550d0
JL		 3847 if (idx != 0)
3848 return -ENOENT;
b739a42c 3849
ece550d0
JL		 3850 survey->channel = conf->channel;
3851 survey->filled = SURVEY_INFO_NOISE_DBM;
3852 survey->noise = wl->noise;
b739a42c 3853
ece550d0
JL		 3854 return 0;
3855}
3856
409622ec 3857static int wl1271_allocate_sta(struct wl1271 *wl,
f84f7d78
AN		 3858 struct ieee80211_sta *sta,
3859 u8 *hlid)
3860{
3861 struct wl1271_station *wl_sta;
3862 int id;
3863
3864 id = find_first_zero_bit(wl->ap_hlid_map, AP_MAX_STATIONS);
3865 if (id >= AP_MAX_STATIONS) {
3866 wl1271_warning("could not allocate HLID - too much stations");
3867 return -EBUSY;
3868 }
3869
3870 wl_sta = (struct wl1271_station *)sta->drv_priv;
04216da3 3871 set_bit(id, wl->ap_hlid_map);
f84f7d78
AN		 3872 wl_sta->hlid = WL1271_AP_STA_HLID_START + id;
3873 *hlid = wl_sta->hlid;
b622d992 3874 memcpy(wl->links[wl_sta->hlid].addr, sta->addr, ETH_ALEN);
da03209e 3875 wl->active_sta_count++;
f84f7d78
AN		 3876 return 0;
3877}
3878
f1acea9a 3879void wl1271_free_sta(struct wl1271 *wl, u8 hlid)
f84f7d78
AN		 3880{
3881 int id = hlid - WL1271_AP_STA_HLID_START;
3882
f1acea9a
AN		 3883 if (hlid < WL1271_AP_STA_HLID_START)
3884 return;
3885
3886 if (!test_bit(id, wl->ap_hlid_map))
409622ec
AN		 3887 return;
3888
04216da3 3889 clear_bit(id, wl->ap_hlid_map);
b622d992 3890 memset(wl->links[hlid].addr, 0, ETH_ALEN);
0f9c8250 3891 wl->links[hlid].ba_bitmap = 0;
a8c0ddb5 3892 wl1271_tx_reset_link_queues(wl, hlid);
b622d992
AN		 3893 __clear_bit(hlid, &wl->ap_ps_map);
3894 __clear_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
da03209e 3895 wl->active_sta_count--;
f84f7d78
AN		 3896}
3897
3898static int wl1271_op_sta_add(struct ieee80211_hw *hw,
3899 struct ieee80211_vif *vif,
3900 struct ieee80211_sta *sta)
3901{
3902 struct wl1271 *wl = hw->priv;
3903 int ret = 0;
3904 u8 hlid;
3905
3906 mutex_lock(&wl->mutex);
3907
3908 if (unlikely(wl->state == WL1271_STATE_OFF))
3909 goto out;
3910
3911 if (wl->bss_type != BSS_TYPE_AP_BSS)
3912 goto out;
3913
3914 wl1271_debug(DEBUG_MAC80211, "mac80211 add sta %d", (int)sta->aid);
3915
409622ec 3916 ret = wl1271_allocate_sta(wl, sta, &hlid);
f84f7d78
AN		 3917 if (ret < 0)
3918 goto out;
3919
a620865e 3920 ret = wl1271_ps_elp_wakeup(wl);
f84f7d78 3921 if (ret < 0)
409622ec 3922 goto out_free_sta;
f84f7d78 3923
c690ec81 3924 ret = wl12xx_cmd_add_peer(wl, sta, hlid);
f84f7d78
AN		 3925 if (ret < 0)
3926 goto out_sleep;
3927
b67476ef
EP		 3928 ret = wl12xx_cmd_set_peer_state(wl, hlid);
3929 if (ret < 0)
3930 goto out_sleep;
3931
0b932ab9
AN		 3932 ret = wl1271_acx_set_ht_capabilities(wl, &sta->ht_cap, true, hlid);
3933 if (ret < 0)
3934 goto out_sleep;
3935
f84f7d78
AN		 3936out_sleep:
3937 wl1271_ps_elp_sleep(wl);
3938
409622ec
AN		 3939out_free_sta:
3940 if (ret < 0)
3941 wl1271_free_sta(wl, hlid);
3942
f84f7d78
AN		 3943out:
3944 mutex_unlock(&wl->mutex);
3945 return ret;
3946}
3947
3948static int wl1271_op_sta_remove(struct ieee80211_hw *hw,
3949 struct ieee80211_vif *vif,
3950 struct ieee80211_sta *sta)
3951{
3952 struct wl1271 *wl = hw->priv;
3953 struct wl1271_station *wl_sta;
3954 int ret = 0, id;
3955
3956 mutex_lock(&wl->mutex);
3957
3958 if (unlikely(wl->state == WL1271_STATE_OFF))
3959 goto out;
3960
3961 if (wl->bss_type != BSS_TYPE_AP_BSS)
3962 goto out;
3963
3964 wl1271_debug(DEBUG_MAC80211, "mac80211 remove sta %d", (int)sta->aid);
3965
3966 wl_sta = (struct wl1271_station *)sta->drv_priv;
3967 id = wl_sta->hlid - WL1271_AP_STA_HLID_START;
3968 if (WARN_ON(!test_bit(id, wl->ap_hlid_map)))
3969 goto out;
3970
a620865e 3971 ret = wl1271_ps_elp_wakeup(wl);
f84f7d78
AN		 3972 if (ret < 0)
3973 goto out;
3974
c690ec81 3975 ret = wl12xx_cmd_remove_peer(wl, wl_sta->hlid);
f84f7d78
AN		 3976 if (ret < 0)
3977 goto out_sleep;
3978
409622ec 3979 wl1271_free_sta(wl, wl_sta->hlid);
f84f7d78
AN		 3980
3981out_sleep:
3982 wl1271_ps_elp_sleep(wl);
3983
3984out:
3985 mutex_unlock(&wl->mutex);
3986 return ret;
3987}
3988
4623ec7d
LC		 3989static int wl1271_op_ampdu_action(struct ieee80211_hw *hw,
3990 struct ieee80211_vif *vif,
3991 enum ieee80211_ampdu_mlme_action action,
3992 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
3993 u8 buf_size)
bbba3e68
LS		 3994{
3995 struct wl1271 *wl = hw->priv;
3996 int ret;
0f9c8250
AN		 3997 u8 hlid, *ba_bitmap;
3998
3999 wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu action %d tid %d", action,
4000 tid);
4001
4002 /* sanity check - the fields in FW are only 8bits wide */
4003 if (WARN_ON(tid > 0xFF))
4004 return -ENOTSUPP;
bbba3e68
LS		 4005
4006 mutex_lock(&wl->mutex);
4007
4008 if (unlikely(wl->state == WL1271_STATE_OFF)) {
4009 ret = -EAGAIN;
4010 goto out;
4011 }
4012
0f9c8250
AN		 4013 if (wl->bss_type == BSS_TYPE_STA_BSS) {
4014 hlid = wl->sta_hlid;
4015 ba_bitmap = &wl->ba_rx_bitmap;
4016 } else if (wl->bss_type == BSS_TYPE_AP_BSS) {
4017 struct wl1271_station *wl_sta;
4018
4019 wl_sta = (struct wl1271_station *)sta->drv_priv;
4020 hlid = wl_sta->hlid;
4021 ba_bitmap = &wl->links[hlid].ba_bitmap;
4022 } else {
4023 ret = -EINVAL;
4024 goto out;
4025 }
4026
a620865e 4027 ret = wl1271_ps_elp_wakeup(wl);
bbba3e68
LS		 4028 if (ret < 0)
4029 goto out;
4030
70559a06
SL		 4031 wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu: Rx tid %d action %d",
4032 tid, action);
4033
bbba3e68
LS		 4034 switch (action) {
4035 case IEEE80211_AMPDU_RX_START:
0f9c8250 4036 if (!wl->ba_support || !wl->ba_allowed) {
bbba3e68 4037 ret = -ENOTSUPP;
0f9c8250
AN		 4038 break;
4039 }
4040
4041 if (wl->ba_rx_session_count >= RX_BA_MAX_SESSIONS) {
4042 ret = -EBUSY;
4043 wl1271_error("exceeded max RX BA sessions");
4044 break;
4045 }
4046
4047 if (*ba_bitmap & BIT(tid)) {
4048 ret = -EINVAL;
4049 wl1271_error("cannot enable RX BA session on active "
4050 "tid: %d", tid);
4051 break;
4052 }
4053
4054 ret = wl12xx_acx_set_ba_receiver_session(wl, tid, *ssn, true,
4055 hlid);
4056 if (!ret) {
4057 *ba_bitmap |= BIT(tid);
4058 wl->ba_rx_session_count++;
bbba3e68
LS		 4059 }
4060 break;
4061
4062 case IEEE80211_AMPDU_RX_STOP:
0f9c8250
AN		 4063 if (!(*ba_bitmap & BIT(tid))) {
4064 ret = -EINVAL;
4065 wl1271_error("no active RX BA session on tid: %d",
4066 tid);
4067 break;
4068 }
4069
4070 ret = wl12xx_acx_set_ba_receiver_session(wl, tid, 0, false,
4071 hlid);
4072 if (!ret) {
4073 *ba_bitmap &= ~BIT(tid);
4074 wl->ba_rx_session_count--;
4075 }
bbba3e68
LS		 4076 break;
4077
4078 /*
4079 * The BA initiator session management in FW independently.
4080 * Falling break here on purpose for all TX APDU commands.
4081 */
4082 case IEEE80211_AMPDU_TX_START:
4083 case IEEE80211_AMPDU_TX_STOP:
4084 case IEEE80211_AMPDU_TX_OPERATIONAL:
4085 ret = -EINVAL;
4086 break;
4087
4088 default:
4089 wl1271_error("Incorrect ampdu action id=%x\n", action);
4090 ret = -EINVAL;
4091 }
4092
4093 wl1271_ps_elp_sleep(wl);
4094
4095out:
4096 mutex_unlock(&wl->mutex);
4097
4098 return ret;
4099}
4100
33437893
AN		 4101static bool wl1271_tx_frames_pending(struct ieee80211_hw *hw)
4102{
4103 struct wl1271 *wl = hw->priv;
4104 bool ret = false;
4105
4106 mutex_lock(&wl->mutex);
4107
4108 if (unlikely(wl->state == WL1271_STATE_OFF))
4109 goto out;
4110
4111 /* packets are considered pending if in the TX queue or the FW */
f1a46384 4112 ret = (wl1271_tx_total_queue_count(wl) > 0) || (wl->tx_frames_cnt > 0);
33437893
AN		 4113
4114 /* the above is appropriate for STA mode for PS purposes */
4115 WARN_ON(wl->bss_type != BSS_TYPE_STA_BSS);
4116
4117out:
4118 mutex_unlock(&wl->mutex);
4119
4120 return ret;
4121}
4122
f5fc0f86
LC		 4123/* can't be const, mac80211 writes to this */
4124static struct ieee80211_rate wl1271_rates[] = {
4125 { .bitrate = 10,
2b60100b
JO		 4126 .hw_value = CONF_HW_BIT_RATE_1MBPS,
4127 .hw_value_short = CONF_HW_BIT_RATE_1MBPS, },
f5fc0f86 4128 { .bitrate = 20,
2b60100b
JO		 4129 .hw_value = CONF_HW_BIT_RATE_2MBPS,
4130 .hw_value_short = CONF_HW_BIT_RATE_2MBPS,
f5fc0f86
LC		 4131 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4132 { .bitrate = 55,
2b60100b
JO		 4133 .hw_value = CONF_HW_BIT_RATE_5_5MBPS,
4134 .hw_value_short = CONF_HW_BIT_RATE_5_5MBPS,
f5fc0f86
LC		 4135 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4136 { .bitrate = 110,
2b60100b
JO		 4137 .hw_value = CONF_HW_BIT_RATE_11MBPS,
4138 .hw_value_short = CONF_HW_BIT_RATE_11MBPS,
f5fc0f86
LC		 4139 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4140 { .bitrate = 60,
2b60100b
JO		 4141 .hw_value = CONF_HW_BIT_RATE_6MBPS,
4142 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
f5fc0f86 4143 { .bitrate = 90,
2b60100b
JO		 4144 .hw_value = CONF_HW_BIT_RATE_9MBPS,
4145 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
f5fc0f86 4146 { .bitrate = 120,
2b60100b
JO		 4147 .hw_value = CONF_HW_BIT_RATE_12MBPS,
4148 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
f5fc0f86 4149 { .bitrate = 180,
2b60100b
JO		 4150 .hw_value = CONF_HW_BIT_RATE_18MBPS,
4151 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
f5fc0f86 4152 { .bitrate = 240,
2b60100b
JO		 4153 .hw_value = CONF_HW_BIT_RATE_24MBPS,
4154 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
f5fc0f86 4155 { .bitrate = 360,
2b60100b
JO		 4156 .hw_value = CONF_HW_BIT_RATE_36MBPS,
4157 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
f5fc0f86 4158 { .bitrate = 480,
2b60100b
JO		 4159 .hw_value = CONF_HW_BIT_RATE_48MBPS,
4160 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
f5fc0f86 4161 { .bitrate = 540,
2b60100b
JO		 4162 .hw_value = CONF_HW_BIT_RATE_54MBPS,
4163 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
f5fc0f86
LC		 4164};
4165
fa97f46b 4166/* can't be const, mac80211 writes to this */
f5fc0f86 4167static struct ieee80211_channel wl1271_channels[] = {
a2d0e3f1 4168 { .hw_value = 1, .center_freq = 2412, .max_power = 25 },
fa21c7a9 4169 { .hw_value = 2, .center_freq = 2417, .max_power = 25 },
fa97f46b
JO		 4170 { .hw_value = 3, .center_freq = 2422, .max_power = 25 },
4171 { .hw_value = 4, .center_freq = 2427, .max_power = 25 },
4172 { .hw_value = 5, .center_freq = 2432, .max_power = 25 },
fa21c7a9 4173 { .hw_value = 6, .center_freq = 2437, .max_power = 25 },
fa97f46b
JO		 4174 { .hw_value = 7, .center_freq = 2442, .max_power = 25 },
4175 { .hw_value = 8, .center_freq = 2447, .max_power = 25 },
4176 { .hw_value = 9, .center_freq = 2452, .max_power = 25 },
fa21c7a9 4177 { .hw_value = 10, .center_freq = 2457, .max_power = 25 },
fa97f46b
JO		 4178 { .hw_value = 11, .center_freq = 2462, .max_power = 25 },
4179 { .hw_value = 12, .center_freq = 2467, .max_power = 25 },
4180 { .hw_value = 13, .center_freq = 2472, .max_power = 25 },
6c89b7b2 4181 { .hw_value = 14, .center_freq = 2484, .max_power = 25 },
f5fc0f86
LC		 4182};
4183
f876bb9a 4184/* mapping to indexes for wl1271_rates */
a0ea9493 4185static const u8 wl1271_rate_to_idx_2ghz[] = {
f876bb9a 4186 /* MCS rates are used only with 11n */
18357850
SL		 4187 7, /* CONF_HW_RXTX_RATE_MCS7 */
4188 6, /* CONF_HW_RXTX_RATE_MCS6 */
4189 5, /* CONF_HW_RXTX_RATE_MCS5 */
4190 4, /* CONF_HW_RXTX_RATE_MCS4 */
4191 3, /* CONF_HW_RXTX_RATE_MCS3 */
4192 2, /* CONF_HW_RXTX_RATE_MCS2 */
4193 1, /* CONF_HW_RXTX_RATE_MCS1 */
4194 0, /* CONF_HW_RXTX_RATE_MCS0 */
f876bb9a
JO		 4195
4196 11, /* CONF_HW_RXTX_RATE_54 */
4197 10, /* CONF_HW_RXTX_RATE_48 */
4198 9, /* CONF_HW_RXTX_RATE_36 */
4199 8, /* CONF_HW_RXTX_RATE_24 */
4200
4201 /* TI-specific rate */
4202 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_22 */
4203
4204 7, /* CONF_HW_RXTX_RATE_18 */
4205 6, /* CONF_HW_RXTX_RATE_12 */
4206 3, /* CONF_HW_RXTX_RATE_11 */
4207 5, /* CONF_HW_RXTX_RATE_9 */
4208 4, /* CONF_HW_RXTX_RATE_6 */
4209 2, /* CONF_HW_RXTX_RATE_5_5 */
4210 1, /* CONF_HW_RXTX_RATE_2 */
4211 0 /* CONF_HW_RXTX_RATE_1 */
4212};
4213
e8b03a2b
SL		 4214/* 11n STA capabilities */
4215#define HW_RX_HIGHEST_RATE 72
4216
00d20100 4217#define WL12XX_HT_CAP { \
871d0c3b
SL		 4218 .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 | \
4219 (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT), \
e8b03a2b
SL		 4220 .ht_supported = true, \
4221 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K, \
4222 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_8, \
4223 .mcs = { \
4224 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, \
4225 .rx_highest = cpu_to_le16(HW_RX_HIGHEST_RATE), \
4226 .tx_params = IEEE80211_HT_MCS_TX_DEFINED, \
4227 }, \
4228}
4229
f5fc0f86
LC		 4230/* can't be const, mac80211 writes to this */
4231static struct ieee80211_supported_band wl1271_band_2ghz = {
4232 .channels = wl1271_channels,
4233 .n_channels = ARRAY_SIZE(wl1271_channels),
4234 .bitrates = wl1271_rates,
4235 .n_bitrates = ARRAY_SIZE(wl1271_rates),
00d20100 4236 .ht_cap = WL12XX_HT_CAP,
f5fc0f86
LC		 4237};
4238
1ebec3d7
TP		 4239/* 5 GHz data rates for WL1273 */
4240static struct ieee80211_rate wl1271_rates_5ghz[] = {
4241 { .bitrate = 60,
4242 .hw_value = CONF_HW_BIT_RATE_6MBPS,
4243 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
4244 { .bitrate = 90,
4245 .hw_value = CONF_HW_BIT_RATE_9MBPS,
4246 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
4247 { .bitrate = 120,
4248 .hw_value = CONF_HW_BIT_RATE_12MBPS,
4249 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
4250 { .bitrate = 180,
4251 .hw_value = CONF_HW_BIT_RATE_18MBPS,
4252 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
4253 { .bitrate = 240,
4254 .hw_value = CONF_HW_BIT_RATE_24MBPS,
4255 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
4256 { .bitrate = 360,
4257 .hw_value = CONF_HW_BIT_RATE_36MBPS,
4258 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
4259 { .bitrate = 480,
4260 .hw_value = CONF_HW_BIT_RATE_48MBPS,
4261 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
4262 { .bitrate = 540,
4263 .hw_value = CONF_HW_BIT_RATE_54MBPS,
4264 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
4265};
4266
fa97f46b 4267/* 5 GHz band channels for WL1273 */
1ebec3d7 4268static struct ieee80211_channel wl1271_channels_5ghz[] = {
6cfa5cff
AN		 4269 { .hw_value = 7, .center_freq = 5035, .max_power = 25 },
4270 { .hw_value = 8, .center_freq = 5040, .max_power = 25 },
4271 { .hw_value = 9, .center_freq = 5045, .max_power = 25 },
4272 { .hw_value = 11, .center_freq = 5055, .max_power = 25 },
4273 { .hw_value = 12, .center_freq = 5060, .max_power = 25 },
4274 { .hw_value = 16, .center_freq = 5080, .max_power = 25 },
4275 { .hw_value = 34, .center_freq = 5170, .max_power = 25 },
4276 { .hw_value = 36, .center_freq = 5180, .max_power = 25 },
4277 { .hw_value = 38, .center_freq = 5190, .max_power = 25 },
4278 { .hw_value = 40, .center_freq = 5200, .max_power = 25 },
4279 { .hw_value = 42, .center_freq = 5210, .max_power = 25 },
4280 { .hw_value = 44, .center_freq = 5220, .max_power = 25 },
4281 { .hw_value = 46, .center_freq = 5230, .max_power = 25 },
4282 { .hw_value = 48, .center_freq = 5240, .max_power = 25 },
4283 { .hw_value = 52, .center_freq = 5260, .max_power = 25 },
4284 { .hw_value = 56, .center_freq = 5280, .max_power = 25 },
4285 { .hw_value = 60, .center_freq = 5300, .max_power = 25 },
4286 { .hw_value = 64, .center_freq = 5320, .max_power = 25 },
4287 { .hw_value = 100, .center_freq = 5500, .max_power = 25 },
4288 { .hw_value = 104, .center_freq = 5520, .max_power = 25 },
4289 { .hw_value = 108, .center_freq = 5540, .max_power = 25 },
4290 { .hw_value = 112, .center_freq = 5560, .max_power = 25 },
4291 { .hw_value = 116, .center_freq = 5580, .max_power = 25 },
4292 { .hw_value = 120, .center_freq = 5600, .max_power = 25 },
4293 { .hw_value = 124, .center_freq = 5620, .max_power = 25 },
4294 { .hw_value = 128, .center_freq = 5640, .max_power = 25 },
4295 { .hw_value = 132, .center_freq = 5660, .max_power = 25 },
4296 { .hw_value = 136, .center_freq = 5680, .max_power = 25 },
4297 { .hw_value = 140, .center_freq = 5700, .max_power = 25 },
4298 { .hw_value = 149, .center_freq = 5745, .max_power = 25 },
4299 { .hw_value = 153, .center_freq = 5765, .max_power = 25 },
4300 { .hw_value = 157, .center_freq = 5785, .max_power = 25 },
4301 { .hw_value = 161, .center_freq = 5805, .max_power = 25 },
4302 { .hw_value = 165, .center_freq = 5825, .max_power = 25 },
1ebec3d7
TP		 4303};
4304
f876bb9a 4305/* mapping to indexes for wl1271_rates_5ghz */
a0ea9493 4306static const u8 wl1271_rate_to_idx_5ghz[] = {
f876bb9a 4307 /* MCS rates are used only with 11n */
18357850
SL		 4308 7, /* CONF_HW_RXTX_RATE_MCS7 */
4309 6, /* CONF_HW_RXTX_RATE_MCS6 */
4310 5, /* CONF_HW_RXTX_RATE_MCS5 */
4311 4, /* CONF_HW_RXTX_RATE_MCS4 */
4312 3, /* CONF_HW_RXTX_RATE_MCS3 */
4313 2, /* CONF_HW_RXTX_RATE_MCS2 */
4314 1, /* CONF_HW_RXTX_RATE_MCS1 */
4315 0, /* CONF_HW_RXTX_RATE_MCS0 */
f876bb9a
JO		 4316
4317 7, /* CONF_HW_RXTX_RATE_54 */
4318 6, /* CONF_HW_RXTX_RATE_48 */
4319 5, /* CONF_HW_RXTX_RATE_36 */
4320 4, /* CONF_HW_RXTX_RATE_24 */
4321
4322 /* TI-specific rate */
4323 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_22 */
4324
4325 3, /* CONF_HW_RXTX_RATE_18 */
4326 2, /* CONF_HW_RXTX_RATE_12 */
4327 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_11 */
4328 1, /* CONF_HW_RXTX_RATE_9 */
4329 0, /* CONF_HW_RXTX_RATE_6 */
4330 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_5_5 */
4331 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_2 */
4332 CONF_HW_RXTX_RATE_UNSUPPORTED /* CONF_HW_RXTX_RATE_1 */
4333};
1ebec3d7
TP		 4334
4335static struct ieee80211_supported_band wl1271_band_5ghz = {
4336 .channels = wl1271_channels_5ghz,
4337 .n_channels = ARRAY_SIZE(wl1271_channels_5ghz),
4338 .bitrates = wl1271_rates_5ghz,
4339 .n_bitrates = ARRAY_SIZE(wl1271_rates_5ghz),
00d20100 4340 .ht_cap = WL12XX_HT_CAP,
1ebec3d7
TP		 4341};
4342
a0ea9493 4343static const u8 *wl1271_band_rate_to_idx[] = {
f876bb9a
JO		 4344 [IEEE80211_BAND_2GHZ] = wl1271_rate_to_idx_2ghz,
4345 [IEEE80211_BAND_5GHZ] = wl1271_rate_to_idx_5ghz
4346};
4347
f5fc0f86
LC		 4348static const struct ieee80211_ops wl1271_ops = {
4349 .start = wl1271_op_start,
4350 .stop = wl1271_op_stop,
4351 .add_interface = wl1271_op_add_interface,
4352 .remove_interface = wl1271_op_remove_interface,
f634a4e7 4353#ifdef CONFIG_PM
402e4861
EP		 4354 .suspend = wl1271_op_suspend,
4355 .resume = wl1271_op_resume,
f634a4e7 4356#endif
f5fc0f86 4357 .config = wl1271_op_config,
c87dec9f 4358 .prepare_multicast = wl1271_op_prepare_multicast,
f5fc0f86
LC		 4359 .configure_filter = wl1271_op_configure_filter,
4360 .tx = wl1271_op_tx,
4361 .set_key = wl1271_op_set_key,
4362 .hw_scan = wl1271_op_hw_scan,
73ecce31 4363 .cancel_hw_scan = wl1271_op_cancel_hw_scan,
33c2c06c
LC		 4364 .sched_scan_start = wl1271_op_sched_scan_start,
4365 .sched_scan_stop = wl1271_op_sched_scan_stop,
f5fc0f86 4366 .bss_info_changed = wl1271_op_bss_info_changed,
68d069c4 4367 .set_frag_threshold = wl1271_op_set_frag_threshold,
f5fc0f86 4368 .set_rts_threshold = wl1271_op_set_rts_threshold,
c6999d83 4369 .conf_tx = wl1271_op_conf_tx,
bbbb538e 4370 .get_tsf = wl1271_op_get_tsf,
ece550d0 4371 .get_survey = wl1271_op_get_survey,
f84f7d78
AN		 4372 .sta_add = wl1271_op_sta_add,
4373 .sta_remove = wl1271_op_sta_remove,
bbba3e68 4374 .ampdu_action = wl1271_op_ampdu_action,
33437893 4375 .tx_frames_pending = wl1271_tx_frames_pending,
c8c90873 4376 CFG80211_TESTMODE_CMD(wl1271_tm_cmd)
f5fc0f86
LC		 4377};
4378
f876bb9a 4379
6a2de93b 4380u8 wl1271_rate_to_idx(int rate, enum ieee80211_band band)
f876bb9a
JO		 4381{
4382 u8 idx;
4383
6a2de93b 4384 BUG_ON(band >= sizeof(wl1271_band_rate_to_idx)/sizeof(u8 *));
f876bb9a
JO		 4385
4386 if (unlikely(rate >= CONF_HW_RXTX_RATE_MAX)) {
4387 wl1271_error("Illegal RX rate from HW: %d", rate);
4388 return 0;
4389 }
4390
6a2de93b 4391 idx = wl1271_band_rate_to_idx[band][rate];
f876bb9a
JO		 4392 if (unlikely(idx == CONF_HW_RXTX_RATE_UNSUPPORTED)) {
4393 wl1271_error("Unsupported RX rate from HW: %d", rate);
4394 return 0;
4395 }
4396
4397 return idx;
4398}
4399
7fc3a864
JO		 4400static ssize_t wl1271_sysfs_show_bt_coex_state(struct device *dev,
4401 struct device_attribute *attr,
4402 char *buf)
4403{
4404 struct wl1271 *wl = dev_get_drvdata(dev);
4405 ssize_t len;
4406
2f63b011 4407 len = PAGE_SIZE;
7fc3a864
JO		 4408
4409 mutex_lock(&wl->mutex);
4410 len = snprintf(buf, len, "%d\n\n0 - off\n1 - on\n",
4411 wl->sg_enabled);
4412 mutex_unlock(&wl->mutex);
4413
4414 return len;
4415
4416}
4417
4418static ssize_t wl1271_sysfs_store_bt_coex_state(struct device *dev,
4419 struct device_attribute *attr,
4420 const char *buf, size_t count)
4421{
4422 struct wl1271 *wl = dev_get_drvdata(dev);
4423 unsigned long res;
4424 int ret;
4425
6277ed65 4426 ret = kstrtoul(buf, 10, &res);
7fc3a864
JO		 4427 if (ret < 0) {
4428 wl1271_warning("incorrect value written to bt_coex_mode");
4429 return count;
4430 }
4431
4432 mutex_lock(&wl->mutex);
4433
4434 res = !!res;
4435
4436 if (res == wl->sg_enabled)
4437 goto out;
4438
4439 wl->sg_enabled = res;
4440
4441 if (wl->state == WL1271_STATE_OFF)
4442 goto out;
4443
a620865e 4444 ret = wl1271_ps_elp_wakeup(wl);
7fc3a864
JO		 4445 if (ret < 0)
4446 goto out;
4447
4448 wl1271_acx_sg_enable(wl, wl->sg_enabled);
4449 wl1271_ps_elp_sleep(wl);
4450
4451 out:
4452 mutex_unlock(&wl->mutex);
4453 return count;
4454}
4455
4456static DEVICE_ATTR(bt_coex_state, S_IRUGO | S_IWUSR,
4457 wl1271_sysfs_show_bt_coex_state,
4458 wl1271_sysfs_store_bt_coex_state);
4459
d717fd61
JO		 4460static ssize_t wl1271_sysfs_show_hw_pg_ver(struct device *dev,
4461 struct device_attribute *attr,
4462 char *buf)
4463{
4464 struct wl1271 *wl = dev_get_drvdata(dev);
4465 ssize_t len;
4466
2f63b011 4467 len = PAGE_SIZE;
d717fd61
JO		 4468
4469 mutex_lock(&wl->mutex);
4470 if (wl->hw_pg_ver >= 0)
4471 len = snprintf(buf, len, "%d\n", wl->hw_pg_ver);
4472 else
4473 len = snprintf(buf, len, "n/a\n");
4474 mutex_unlock(&wl->mutex);
4475
4476 return len;
4477}
4478
6f07b72a 4479static DEVICE_ATTR(hw_pg_ver, S_IRUGO,
d717fd61
JO		 4480 wl1271_sysfs_show_hw_pg_ver, NULL);
4481
95dac04f
IY		 4482static ssize_t wl1271_sysfs_read_fwlog(struct file *filp, struct kobject *kobj,
4483 struct bin_attribute *bin_attr,
4484 char *buffer, loff_t pos, size_t count)
4485{
4486 struct device *dev = container_of(kobj, struct device, kobj);
4487 struct wl1271 *wl = dev_get_drvdata(dev);
4488 ssize_t len;
4489 int ret;
4490
4491 ret = mutex_lock_interruptible(&wl->mutex);
4492 if (ret < 0)
4493 return -ERESTARTSYS;
4494
4495 /* Let only one thread read the log at a time, blocking others */
4496 while (wl->fwlog_size == 0) {
4497 DEFINE_WAIT(wait);
4498
4499 prepare_to_wait_exclusive(&wl->fwlog_waitq,
4500 &wait,
4501 TASK_INTERRUPTIBLE);
4502
4503 if (wl->fwlog_size != 0) {
4504 finish_wait(&wl->fwlog_waitq, &wait);
4505 break;
4506 }
4507
4508 mutex_unlock(&wl->mutex);
4509
4510 schedule();
4511 finish_wait(&wl->fwlog_waitq, &wait);
4512
4513 if (signal_pending(current))
4514 return -ERESTARTSYS;
4515
4516 ret = mutex_lock_interruptible(&wl->mutex);
4517 if (ret < 0)
4518 return -ERESTARTSYS;
4519 }
4520
4521 /* Check if the fwlog is still valid */
4522 if (wl->fwlog_size < 0) {
4523 mutex_unlock(&wl->mutex);
4524 return 0;
4525 }
4526
4527 /* Seeking is not supported - old logs are not kept. Disregard pos. */
4528 len = min(count, (size_t)wl->fwlog_size);
4529 wl->fwlog_size -= len;
4530 memcpy(buffer, wl->fwlog, len);
4531
4532 /* Make room for new messages */
4533 memmove(wl->fwlog, wl->fwlog + len, wl->fwlog_size);
4534
4535 mutex_unlock(&wl->mutex);
4536
4537 return len;
4538}
4539
4540static struct bin_attribute fwlog_attr = {
4541 .attr = {.name = "fwlog", .mode = S_IRUSR},
4542 .read = wl1271_sysfs_read_fwlog,
4543};
4544
2d5e82b8 4545int wl1271_register_hw(struct wl1271 *wl)
f5fc0f86
LC		 4546{
4547 int ret;
4548
4549 if (wl->mac80211_registered)
4550 return 0;
4551
31d26ec6
AN		 4552 ret = wl1271_fetch_nvs(wl);
4553 if (ret == 0) {
bc765bf3
SL		 4554 /* NOTE: The wl->nvs->nvs element must be first, in
4555 * order to simplify the casting, we assume it is at
4556 * the beginning of the wl->nvs structure.
4557 */
4558 u8 *nvs_ptr = (u8 *)wl->nvs;
31d26ec6
AN		 4559
4560 wl->mac_addr[0] = nvs_ptr[11];
4561 wl->mac_addr[1] = nvs_ptr[10];
4562 wl->mac_addr[2] = nvs_ptr[6];
4563 wl->mac_addr[3] = nvs_ptr[5];
4564 wl->mac_addr[4] = nvs_ptr[4];
4565 wl->mac_addr[5] = nvs_ptr[3];
4566 }
4567
f5fc0f86
LC		 4568 SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr);
4569
4570 ret = ieee80211_register_hw(wl->hw);
4571 if (ret < 0) {
4572 wl1271_error("unable to register mac80211 hw: %d", ret);
4573 return ret;
4574 }
4575
4576 wl->mac80211_registered = true;
4577
d60080ae
EP		 4578 wl1271_debugfs_init(wl);
4579
c2c192ac
JO		 4580 register_netdevice_notifier(&wl1271_dev_notifier);
4581
f5fc0f86
LC		 4582 wl1271_notice("loaded");
4583
4584 return 0;
4585}
50b3eb4b 4586EXPORT_SYMBOL_GPL(wl1271_register_hw);
f5fc0f86 4587
3b56dd6a
TP		 4588void wl1271_unregister_hw(struct wl1271 *wl)
4589{
4ae3fa87
JO		 4590 if (wl->state == WL1271_STATE_PLT)
4591 __wl1271_plt_stop(wl);
4592
c2c192ac 4593 unregister_netdevice_notifier(&wl1271_dev_notifier);
3b56dd6a
TP		 4594 ieee80211_unregister_hw(wl->hw);
4595 wl->mac80211_registered = false;
4596
4597}
4598EXPORT_SYMBOL_GPL(wl1271_unregister_hw);
4599
2d5e82b8 4600int wl1271_init_ieee80211(struct wl1271 *wl)
f5fc0f86 4601{
7a55724e
JO		 4602 static const u32 cipher_suites[] = {
4603 WLAN_CIPHER_SUITE_WEP40,
4604 WLAN_CIPHER_SUITE_WEP104,
4605 WLAN_CIPHER_SUITE_TKIP,
4606 WLAN_CIPHER_SUITE_CCMP,
4607 WL1271_CIPHER_SUITE_GEM,
4608 };
4609
1e2b7976
JO		 4610 /* The tx descriptor buffer and the TKIP space. */
4611 wl->hw->extra_tx_headroom = WL1271_TKIP_IV_SPACE +
4612 sizeof(struct wl1271_tx_hw_descr);
f5fc0f86
LC		 4613
4614 /* unit us */
4615 /* FIXME: find a proper value */
4616 wl->hw->channel_change_time = 10000;
50c500ad 4617 wl->hw->max_listen_interval = wl->conf.conn.max_listen_interval;
f5fc0f86
LC		 4618
4619 wl->hw->flags = IEEE80211_HW_SIGNAL_DBM |
03442a33 4620 IEEE80211_HW_BEACON_FILTER |
0a34332f 4621 IEEE80211_HW_SUPPORTS_PS |
4695dc91 4622 IEEE80211_HW_SUPPORTS_UAPSD |
a9af092b 4623 IEEE80211_HW_HAS_RATE_CONTROL |
00236aed 4624 IEEE80211_HW_CONNECTION_MONITOR |
62c0740c 4625 IEEE80211_HW_SUPPORTS_CQM_RSSI |
25eaea30 4626 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
fcd23b63 4627 IEEE80211_HW_SPECTRUM_MGMT |
93f8c8e0
AN		 4628 IEEE80211_HW_AP_LINK_PS |
4629 IEEE80211_HW_AMPDU_AGGREGATION |
4630 IEEE80211_HW_TX_AMPDU_SETUP_IN_HW;
f5fc0f86 4631
7a55724e
JO		 4632 wl->hw->wiphy->cipher_suites = cipher_suites;
4633 wl->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
4634
e0d8bbf0 4635 wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
045c745f
EP		 4636 BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP) |
4637 BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO);
f5fc0f86 4638 wl->hw->wiphy->max_scan_ssids = 1;
221737d2
LC		 4639 wl->hw->wiphy->max_sched_scan_ssids = 16;
4640 wl->hw->wiphy->max_match_sets = 16;
ea559b46
GE		 4641 /*
4642 * Maximum length of elements in scanning probe request templates
4643 * should be the maximum length possible for a template, without
4644 * the IEEE80211 header of the template
4645 */
154037d1 4646 wl->hw->wiphy->max_scan_ie_len = WL1271_CMD_TEMPL_DFLT_SIZE -
ea559b46 4647 sizeof(struct ieee80211_header);
a8aaaf53 4648
1ec23f7f
EP		 4649 wl->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
4650
4a31c11c
LC		 4651 /* make sure all our channels fit in the scanned_ch bitmask */
4652 BUILD_BUG_ON(ARRAY_SIZE(wl1271_channels) +
4653 ARRAY_SIZE(wl1271_channels_5ghz) >
4654 WL1271_MAX_CHANNELS);
a8aaaf53
LC		 4655 /*
4656 * We keep local copies of the band structs because we need to
4657 * modify them on a per-device basis.
4658 */
4659 memcpy(&wl->bands[IEEE80211_BAND_2GHZ], &wl1271_band_2ghz,
4660 sizeof(wl1271_band_2ghz));
4661 memcpy(&wl->bands[IEEE80211_BAND_5GHZ], &wl1271_band_5ghz,
4662 sizeof(wl1271_band_5ghz));
4663
4664 wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
4665 &wl->bands[IEEE80211_BAND_2GHZ];
4666 wl->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
4667 &wl->bands[IEEE80211_BAND_5GHZ];
1ebec3d7 4668
12bd8949 4669 wl->hw->queues = 4;
31627dc5 4670 wl->hw->max_rates = 1;
12bd8949 4671
b7417d93
JO		 4672 wl->hw->wiphy->reg_notifier = wl1271_reg_notify;
4673
8197b711 4674 SET_IEEE80211_DEV(wl->hw, wl1271_wl_to_dev(wl));
f5fc0f86 4675
f84f7d78
AN		 4676 wl->hw->sta_data_size = sizeof(struct wl1271_station);
4677
4c9cfa78
LC		 4678 wl->hw->max_rx_aggregation_subframes = 8;
4679
f5fc0f86
LC		 4680 return 0;
4681}
50b3eb4b 4682EXPORT_SYMBOL_GPL(wl1271_init_ieee80211);
f5fc0f86 4683
f5fc0f86 4684#define WL1271_DEFAULT_CHANNEL 0
c332a4b8 4685
2d5e82b8 4686struct ieee80211_hw *wl1271_alloc_hw(void)
f5fc0f86 4687{
f5fc0f86 4688 struct ieee80211_hw *hw;
3b56dd6a 4689 struct platform_device *plat_dev = NULL;
f5fc0f86 4690 struct wl1271 *wl;
a8c0ddb5 4691 int i, j, ret;
1f37cbc9 4692 unsigned int order;
f5fc0f86
LC		 4693
4694 hw = ieee80211_alloc_hw(sizeof(*wl), &wl1271_ops);
4695 if (!hw) {
4696 wl1271_error("could not alloc ieee80211_hw");
a1dd8187 4697 ret = -ENOMEM;
3b56dd6a
TP		 4698 goto err_hw_alloc;
4699 }
4700
929ebd30 4701 plat_dev = kmemdup(&wl1271_device, sizeof(wl1271_device), GFP_KERNEL);
3b56dd6a
TP		 4702 if (!plat_dev) {
4703 wl1271_error("could not allocate platform_device");
4704 ret = -ENOMEM;
4705 goto err_plat_alloc;
f5fc0f86
LC		 4706 }
4707
4708 wl = hw->priv;
4709 memset(wl, 0, sizeof(*wl));
4710
01c09162
JO		 4711 INIT_LIST_HEAD(&wl->list);
4712
f5fc0f86 4713 wl->hw = hw;
3b56dd6a 4714 wl->plat_dev = plat_dev;
f5fc0f86 4715
6742f554
JO		 4716 for (i = 0; i < NUM_TX_QUEUES; i++)
4717 skb_queue_head_init(&wl->tx_queue[i]);
f5fc0f86 4718
a8c0ddb5
AN		 4719 for (i = 0; i < NUM_TX_QUEUES; i++)
4720 for (j = 0; j < AP_MAX_LINKS; j++)
4721 skb_queue_head_init(&wl->links[j].tx_queue[i]);
4722
a620865e
IY		 4723 skb_queue_head_init(&wl->deferred_rx_queue);
4724 skb_queue_head_init(&wl->deferred_tx_queue);
4725
37b70a81 4726 INIT_DELAYED_WORK(&wl->elp_work, wl1271_elp_work);
90494a90 4727 INIT_DELAYED_WORK(&wl->pspoll_work, wl1271_pspoll_work);
a620865e 4728 INIT_WORK(&wl->netstack_work, wl1271_netstack_work);
117b38d0
JO		 4729 INIT_WORK(&wl->tx_work, wl1271_tx_work);
4730 INIT_WORK(&wl->recovery_work, wl1271_recovery_work);
4731 INIT_DELAYED_WORK(&wl->scan_complete_work, wl1271_scan_complete_work);
77ddaa10
EP		 4732 INIT_WORK(&wl->rx_streaming_enable_work,
4733 wl1271_rx_streaming_enable_work);
4734 INIT_WORK(&wl->rx_streaming_disable_work,
4735 wl1271_rx_streaming_disable_work);
4736
92ef8960
EP		 4737 wl->freezable_wq = create_freezable_workqueue("wl12xx_wq");
4738 if (!wl->freezable_wq) {
4739 ret = -ENOMEM;
4740 goto err_hw;
4741 }
4742
f5fc0f86 4743 wl->channel = WL1271_DEFAULT_CHANNEL;
60e84c2e 4744 wl->beacon_int = WL1271_DEFAULT_BEACON_INT;
f5fc0f86 4745 wl->default_key = 0;
f5fc0f86 4746 wl->rx_counter = 0;
19ad0715 4747 wl->psm_entry_retry = 0;
f5fc0f86 4748 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
a6fe2313 4749 wl->basic_rate_set = CONF_TX_RATE_MASK_BASIC;
ebba60c6 4750 wl->basic_rate = CONF_TX_RATE_MASK_BASIC;
830fb67b 4751 wl->rate_set = CONF_TX_RATE_MASK_BASIC;
8a5a37a6 4752 wl->band = IEEE80211_BAND_2GHZ;
b771eee5 4753 wl->vif = NULL;
830fb67b 4754 wl->flags = 0;
7fc3a864 4755 wl->sg_enabled = true;
d717fd61 4756 wl->hw_pg_ver = -1;
166d504e
AN		 4757 wl->bss_type = MAX_BSS_TYPE;
4758 wl->set_bss_type = MAX_BSS_TYPE;
a8c0ddb5 4759 wl->last_tx_hlid = 0;
b622d992
AN		 4760 wl->ap_ps_map = 0;
4761 wl->ap_fw_ps_map = 0;
606ea9fa 4762 wl->quirks = 0;
341b7cde 4763 wl->platform_quirks = 0;
33c2c06c 4764 wl->sched_scanning = false;
b992c682
OK		 4765 wl->tx_security_seq = 0;
4766 wl->tx_security_last_seq_lsb = 0;
e9eb8cbe 4767 wl->tx_spare_blocks = TX_HW_BLOCK_SPARE_DEFAULT;
7f097988 4768 wl->role_id = WL12XX_INVALID_ROLE_ID;
f4df1bd5 4769 wl->system_hlid = WL12XX_SYSTEM_HLID;
7f097988 4770 wl->sta_hlid = WL12XX_INVALID_LINK_ID;
04e8079c
EP		 4771 wl->dev_role_id = WL12XX_INVALID_ROLE_ID;
4772 wl->dev_hlid = WL12XX_INVALID_LINK_ID;
712e9bf7 4773 wl->session_counter = 0;
e51ae9be
AN		 4774 wl->ap_bcast_hlid = WL12XX_INVALID_LINK_ID;
4775 wl->ap_global_hlid = WL12XX_INVALID_LINK_ID;
da03209e 4776 wl->active_sta_count = 0;
77ddaa10
EP		 4777 setup_timer(&wl->rx_streaming_timer, wl1271_rx_streaming_timer,
4778 (unsigned long) wl);
95dac04f
IY		 4779 wl->fwlog_size = 0;
4780 init_waitqueue_head(&wl->fwlog_waitq);
f5fc0f86 4781
f4df1bd5
EP		 4782 /* The system link is always allocated */
4783 __set_bit(WL12XX_SYSTEM_HLID, wl->links_map);
4784
25eeb9e3 4785 memset(wl->tx_frames_map, 0, sizeof(wl->tx_frames_map));
be7078c2 4786 for (i = 0; i < ACX_TX_DESCRIPTORS; i++)
f5fc0f86
LC		 4787 wl->tx_frames[i] = NULL;
4788
4789 spin_lock_init(&wl->wl_lock);
4790
f5fc0f86
LC		 4791 wl->state = WL1271_STATE_OFF;
4792 mutex_init(&wl->mutex);
4793
c332a4b8
TP		 4794 /* Apply default driver configuration. */
4795 wl1271_conf_init(wl);
4796
1f37cbc9
IY		 4797 order = get_order(WL1271_AGGR_BUFFER_SIZE);
4798 wl->aggr_buf = (u8 *)__get_free_pages(GFP_KERNEL, order);
4799 if (!wl->aggr_buf) {
4800 ret = -ENOMEM;
92ef8960 4801 goto err_wq;
1f37cbc9
IY		 4802 }
4803
990f5de7
IY		 4804 wl->dummy_packet = wl12xx_alloc_dummy_packet(wl);
4805 if (!wl->dummy_packet) {
4806 ret = -ENOMEM;
4807 goto err_aggr;
4808 }
4809
95dac04f
IY		 4810 /* Allocate one page for the FW log */
4811 wl->fwlog = (u8 *)get_zeroed_page(GFP_KERNEL);
4812 if (!wl->fwlog) {
4813 ret = -ENOMEM;
4814 goto err_dummy_packet;
4815 }
4816
a1dd8187 4817 /* Register platform device */
3b56dd6a 4818 ret = platform_device_register(wl->plat_dev);
a1dd8187
JO		 4819 if (ret) {
4820 wl1271_error("couldn't register platform device");
95dac04f 4821 goto err_fwlog;
a1dd8187 4822 }
3b56dd6a 4823 dev_set_drvdata(&wl->plat_dev->dev, wl);
a1dd8187 4824
7fc3a864 4825 /* Create sysfs file to control bt coex state */
3b56dd6a 4826 ret = device_create_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
7fc3a864
JO		 4827 if (ret < 0) {
4828 wl1271_error("failed to create sysfs file bt_coex_state");
4829 goto err_platform;
4830 }
a1dd8187 4831
d717fd61
JO		 4832 /* Create sysfs file to get HW PG version */
4833 ret = device_create_file(&wl->plat_dev->dev, &dev_attr_hw_pg_ver);
4834 if (ret < 0) {
4835 wl1271_error("failed to create sysfs file hw_pg_ver");
4836 goto err_bt_coex_state;
4837 }
4838
95dac04f
IY		 4839 /* Create sysfs file for the FW log */
4840 ret = device_create_bin_file(&wl->plat_dev->dev, &fwlog_attr);
4841 if (ret < 0) {
4842 wl1271_error("failed to create sysfs file fwlog");
4843 goto err_hw_pg_ver;
4844 }
4845
c332a4b8 4846 return hw;
a1dd8187 4847
95dac04f
IY		 4848err_hw_pg_ver:
4849 device_remove_file(&wl->plat_dev->dev, &dev_attr_hw_pg_ver);
4850
d717fd61
JO		 4851err_bt_coex_state:
4852 device_remove_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
4853
7fc3a864 4854err_platform:
3b56dd6a 4855 platform_device_unregister(wl->plat_dev);
7fc3a864 4856
95dac04f
IY		 4857err_fwlog:
4858 free_page((unsigned long)wl->fwlog);
4859
990f5de7
IY		 4860err_dummy_packet:
4861 dev_kfree_skb(wl->dummy_packet);
4862
1f37cbc9
IY		 4863err_aggr:
4864 free_pages((unsigned long)wl->aggr_buf, order);
4865
92ef8960
EP		 4866err_wq:
4867 destroy_workqueue(wl->freezable_wq);
4868
a1dd8187 4869err_hw:
3b56dd6a
TP		 4870 wl1271_debugfs_exit(wl);
4871 kfree(plat_dev);
4872
4873err_plat_alloc:
4874 ieee80211_free_hw(hw);
4875
4876err_hw_alloc:
a1dd8187 4877
a1dd8187 4878 return ERR_PTR(ret);
c332a4b8 4879}
50b3eb4b 4880EXPORT_SYMBOL_GPL(wl1271_alloc_hw);
c332a4b8
TP		 4881
4882int wl1271_free_hw(struct wl1271 *wl)
4883{
95dac04f
IY		 4884 /* Unblock any fwlog readers */
4885 mutex_lock(&wl->mutex);
4886 wl->fwlog_size = -1;
4887 wake_up_interruptible_all(&wl->fwlog_waitq);
4888 mutex_unlock(&wl->mutex);
4889
4890 device_remove_bin_file(&wl->plat_dev->dev, &fwlog_attr);
6f07b72a
GK		 4891
4892 device_remove_file(&wl->plat_dev->dev, &dev_attr_hw_pg_ver);
4893
4894 device_remove_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
3b56dd6a 4895 platform_device_unregister(wl->plat_dev);
95dac04f 4896 free_page((unsigned long)wl->fwlog);
990f5de7 4897 dev_kfree_skb(wl->dummy_packet);
1f37cbc9
IY		 4898 free_pages((unsigned long)wl->aggr_buf,
4899 get_order(WL1271_AGGR_BUFFER_SIZE));
3b56dd6a 4900 kfree(wl->plat_dev);
c332a4b8
TP		 4901
4902 wl1271_debugfs_exit(wl);
4903
c332a4b8
TP		 4904 vfree(wl->fw);
4905 wl->fw = NULL;
4906 kfree(wl->nvs);
4907 wl->nvs = NULL;
4908
4909 kfree(wl->fw_status);
4910 kfree(wl->tx_res_if);
92ef8960 4911 destroy_workqueue(wl->freezable_wq);
c332a4b8
TP		 4912
4913 ieee80211_free_hw(wl->hw);
4914
4915 return 0;
4916}
50b3eb4b
TP		 4917EXPORT_SYMBOL_GPL(wl1271_free_hw);
4918
491bbd6b 4919u32 wl12xx_debug_level = DEBUG_NONE;
17c1755c 4920EXPORT_SYMBOL_GPL(wl12xx_debug_level);
491bbd6b 4921module_param_named(debug_level, wl12xx_debug_level, uint, S_IRUSR | S_IWUSR);
17c1755c
EP		 4922MODULE_PARM_DESC(debug_level, "wl12xx debugging level");
4923
95dac04f
IY		 4924module_param_named(fwlog, fwlog_param, charp, 0);
4925MODULE_PARM_DESC(keymap,
4926 "FW logger options: continuous, ondemand, dbgpins or disable");
4927
2a5bff09
EP		 4928module_param(bug_on_recovery, bool, S_IRUSR | S_IWUSR);
4929MODULE_PARM_DESC(bug_on_recovery, "BUG() on fw recovery");
4930
50b3eb4b 4931MODULE_LICENSE("GPL");
b1a48cab 4932MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
50b3eb4b 4933MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
Linux kernel - Deliverables
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