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wl12xx: move some functions from remove_interface() to stop()
[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 379static void __wl1271_op_remove_interface(struct wl1271 *wl,
536129c8 380 struct ieee80211_vif *vif,
7dece1c8 381 bool reset_tx_queues);
170d0e67 382static void wl1271_free_ap_keys(struct wl1271 *wl, struct wl12xx_vif *wlvif);
52b0e7a6
JO		 383
384
a1dd8187
JO		 385static void wl1271_device_release(struct device *dev)
386{
387
388}
389
390static struct platform_device wl1271_device = {
391 .name = "wl1271",
392 .id = -1,
393
394 /* device model insists to have a release function */
395 .dev = {
396 .release = wl1271_device_release,
397 },
398};
399
f9f774c1 400static DEFINE_MUTEX(wl_list_mutex);
01c09162
JO		 401static LIST_HEAD(wl_list);
402
ef4b29e9
EP		 403static int wl1271_check_operstate(struct wl1271 *wl, unsigned char operstate)
404{
0603d891
EP		 405 struct ieee80211_vif *vif = wl->vif; /* TODO: get as param */
406 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
ef4b29e9 407 int ret;
0603d891 408
ef4b29e9
EP		 409 if (operstate != IF_OPER_UP)
410 return 0;
411
412 if (test_and_set_bit(WL1271_FLAG_STA_STATE_SENT, &wl->flags))
413 return 0;
414
154da67c 415 ret = wl12xx_cmd_set_peer_state(wl, wlvif->sta.hlid);
ef4b29e9
EP		 416 if (ret < 0)
417 return ret;
418
0603d891 419 wl12xx_croc(wl, wlvif->role_id);
251c177f 420
ef4b29e9
EP		 421 wl1271_info("Association completed.");
422 return 0;
423}
c2c192ac
JO		 424static int wl1271_dev_notify(struct notifier_block *me, unsigned long what,
425 void *arg)
426{
427 struct net_device *dev = arg;
428 struct wireless_dev *wdev;
429 struct wiphy *wiphy;
430 struct ieee80211_hw *hw;
431 struct wl1271 *wl;
432 struct wl1271 *wl_temp;
433 int ret = 0;
434
435 /* Check that this notification is for us. */
436 if (what != NETDEV_CHANGE)
437 return NOTIFY_DONE;
438
439 wdev = dev->ieee80211_ptr;
440 if (wdev == NULL)
441 return NOTIFY_DONE;
442
443 wiphy = wdev->wiphy;
444 if (wiphy == NULL)
445 return NOTIFY_DONE;
446
447 hw = wiphy_priv(wiphy);
448 if (hw == NULL)
449 return NOTIFY_DONE;
450
451 wl_temp = hw->priv;
f9f774c1 452 mutex_lock(&wl_list_mutex);
c2c192ac
JO		 453 list_for_each_entry(wl, &wl_list, list) {
454 if (wl == wl_temp)
455 break;
456 }
f9f774c1 457 mutex_unlock(&wl_list_mutex);
c2c192ac
JO		 458 if (wl != wl_temp)
459 return NOTIFY_DONE;
460
461 mutex_lock(&wl->mutex);
462
463 if (wl->state == WL1271_STATE_OFF)
464 goto out;
465
466 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
467 goto out;
468
a620865e 469 ret = wl1271_ps_elp_wakeup(wl);
c2c192ac
JO		 470 if (ret < 0)
471 goto out;
472
ef4b29e9 473 wl1271_check_operstate(wl, dev->operstate);
c2c192ac
JO		 474
475 wl1271_ps_elp_sleep(wl);
476
477out:
478 mutex_unlock(&wl->mutex);
479
480 return NOTIFY_OK;
481}
482
b7417d93 483static int wl1271_reg_notify(struct wiphy *wiphy,
573c67cf
LC		 484 struct regulatory_request *request)
485{
b7417d93
JO		 486 struct ieee80211_supported_band *band;
487 struct ieee80211_channel *ch;
488 int i;
489
490 band = wiphy->bands[IEEE80211_BAND_5GHZ];
491 for (i = 0; i < band->n_channels; i++) {
492 ch = &band->channels[i];
493 if (ch->flags & IEEE80211_CHAN_DISABLED)
494 continue;
495
496 if (ch->flags & IEEE80211_CHAN_RADAR)
497 ch->flags |= IEEE80211_CHAN_NO_IBSS |
498 IEEE80211_CHAN_PASSIVE_SCAN;
499
500 }
501
502 return 0;
503}
504
77ddaa10
EP		 505static int wl1271_set_rx_streaming(struct wl1271 *wl, bool enable)
506{
507 int ret = 0;
508
509 /* we should hold wl->mutex */
510 ret = wl1271_acx_ps_rx_streaming(wl, enable);
511 if (ret < 0)
512 goto out;
513
514 if (enable)
515 set_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags);
516 else
517 clear_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags);
518out:
519 return ret;
520}
521
522/*
523 * this function is being called when the rx_streaming interval
524 * has beed changed or rx_streaming should be disabled
525 */
526int wl1271_recalc_rx_streaming(struct wl1271 *wl)
527{
528 int ret = 0;
529 int period = wl->conf.rx_streaming.interval;
530
531 /* don't reconfigure if rx_streaming is disabled */
532 if (!test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags))
533 goto out;
534
535 /* reconfigure/disable according to new streaming_period */
536 if (period &&
537 test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags) &&
538 (wl->conf.rx_streaming.always ||
539 test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags)))
540 ret = wl1271_set_rx_streaming(wl, true);
541 else {
542 ret = wl1271_set_rx_streaming(wl, false);
543 /* don't cancel_work_sync since we might deadlock */
544 del_timer_sync(&wl->rx_streaming_timer);
545 }
546out:
547 return ret;
548}
549
550static void wl1271_rx_streaming_enable_work(struct work_struct *work)
551{
552 int ret;
553 struct wl1271 *wl =
554 container_of(work, struct wl1271, rx_streaming_enable_work);
555
556 mutex_lock(&wl->mutex);
557
558 if (test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags) ||
559 !test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags) ||
560 (!wl->conf.rx_streaming.always &&
561 !test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags)))
562 goto out;
563
564 if (!wl->conf.rx_streaming.interval)
565 goto out;
566
567 ret = wl1271_ps_elp_wakeup(wl);
568 if (ret < 0)
569 goto out;
570
571 ret = wl1271_set_rx_streaming(wl, true);
572 if (ret < 0)
573 goto out_sleep;
574
575 /* stop it after some time of inactivity */
576 mod_timer(&wl->rx_streaming_timer,
577 jiffies + msecs_to_jiffies(wl->conf.rx_streaming.duration));
578
579out_sleep:
580 wl1271_ps_elp_sleep(wl);
581out:
582 mutex_unlock(&wl->mutex);
583}
584
585static void wl1271_rx_streaming_disable_work(struct work_struct *work)
586{
587 int ret;
588 struct wl1271 *wl =
589 container_of(work, struct wl1271, rx_streaming_disable_work);
590
591 mutex_lock(&wl->mutex);
592
593 if (!test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags))
594 goto out;
595
596 ret = wl1271_ps_elp_wakeup(wl);
597 if (ret < 0)
598 goto out;
599
600 ret = wl1271_set_rx_streaming(wl, false);
601 if (ret)
602 goto out_sleep;
603
604out_sleep:
605 wl1271_ps_elp_sleep(wl);
606out:
607 mutex_unlock(&wl->mutex);
608}
609
610static void wl1271_rx_streaming_timer(unsigned long data)
611{
612 struct wl1271 *wl = (struct wl1271 *)data;
613 ieee80211_queue_work(wl->hw, &wl->rx_streaming_disable_work);
614}
615
8a08048a
JO		 616static void wl1271_conf_init(struct wl1271 *wl)
617{
2b60100b
JO		 618
619 /*
620 * This function applies the default configuration to the driver. This
621 * function is invoked upon driver load (spi probe.)
622 *
623 * The configuration is stored in a run-time structure in order to
624 * facilitate for run-time adjustment of any of the parameters. Making
625 * changes to the configuration structure will apply the new values on
626 * the next interface up (wl1271_op_start.)
627 */
628
629 /* apply driver default configuration */
8a08048a 630 memcpy(&wl->conf, &default_conf, sizeof(default_conf));
2b60100b 631
95dac04f
IY		 632 /* Adjust settings according to optional module parameters */
633 if (fwlog_param) {
634 if (!strcmp(fwlog_param, "continuous")) {
635 wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS;
636 } else if (!strcmp(fwlog_param, "ondemand")) {
637 wl->conf.fwlog.mode = WL12XX_FWLOG_ON_DEMAND;
638 } else if (!strcmp(fwlog_param, "dbgpins")) {
639 wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS;
640 wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_DBG_PINS;
641 } else if (!strcmp(fwlog_param, "disable")) {
642 wl->conf.fwlog.mem_blocks = 0;
643 wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_NONE;
644 } else {
645 wl1271_error("Unknown fwlog parameter %s", fwlog_param);
646 }
647 }
648}
2b60100b 649
f5fc0f86
LC		 650static int wl1271_plt_init(struct wl1271 *wl)
651{
12419cce
LC		 652 struct conf_tx_ac_category *conf_ac;
653 struct conf_tx_tid *conf_tid;
654 int ret, i;
f5fc0f86 655
49d750ca
SL		 656 if (wl->chip.id == CHIP_ID_1283_PG20)
657 ret = wl128x_cmd_general_parms(wl);
658 else
659 ret = wl1271_cmd_general_parms(wl);
4a90406b 660 if (ret < 0)
cc7defa3
LC		 661 return ret;
662
49d750ca
SL		 663 if (wl->chip.id == CHIP_ID_1283_PG20)
664 ret = wl128x_cmd_radio_parms(wl);
665 else
666 ret = wl1271_cmd_radio_parms(wl);
4a90406b 667 if (ret < 0)
cc7defa3
LC		 668 return ret;
669
49d750ca
SL		 670 if (wl->chip.id != CHIP_ID_1283_PG20) {
671 ret = wl1271_cmd_ext_radio_parms(wl);
672 if (ret < 0)
673 return ret;
674 }
644a4860
JO		 675 if (ret < 0)
676 return ret;
677
48a61477
SL		 678 /* Chip-specific initializations */
679 ret = wl1271_chip_specific_init(wl);
680 if (ret < 0)
681 return ret;
682
92c77c73 683 ret = wl1271_init_templates_config(wl);
12419cce
LC		 684 if (ret < 0)
685 return ret;
686
f5fc0f86
LC		 687 ret = wl1271_acx_init_mem_config(wl);
688 if (ret < 0)
689 return ret;
690
12419cce
LC		 691 /* PHY layer config */
692 ret = wl1271_init_phy_config(wl);
693 if (ret < 0)
694 goto out_free_memmap;
695
696 ret = wl1271_acx_dco_itrim_params(wl);
697 if (ret < 0)
698 goto out_free_memmap;
699
700 /* Initialize connection monitoring thresholds */
0603d891 701 ret = wl1271_acx_conn_monit_params(wl, NULL, false); /* TODO: fix */
12419cce
LC		 702 if (ret < 0)
703 goto out_free_memmap;
704
705 /* Bluetooth WLAN coexistence */
706 ret = wl1271_init_pta(wl);
707 if (ret < 0)
708 goto out_free_memmap;
709
ff86843d
SL		 710 /* FM WLAN coexistence */
711 ret = wl1271_acx_fm_coex(wl);
712 if (ret < 0)
713 goto out_free_memmap;
714
12419cce
LC		 715 /* Energy detection */
716 ret = wl1271_init_energy_detection(wl);
717 if (ret < 0)
718 goto out_free_memmap;
719
7f097988 720 ret = wl12xx_acx_mem_cfg(wl);
1ec610eb
GK		 721 if (ret < 0)
722 goto out_free_memmap;
723
12419cce 724 /* Default fragmentation threshold */
68d069c4 725 ret = wl1271_acx_frag_threshold(wl, wl->conf.tx.frag_threshold);
12419cce
LC		 726 if (ret < 0)
727 goto out_free_memmap;
728
9987a9da
JO		 729 /* Default TID/AC configuration */
730 BUG_ON(wl->conf.tx.tid_conf_count != wl->conf.tx.ac_conf_count);
12419cce 731 for (i = 0; i < wl->conf.tx.tid_conf_count; i++) {
9987a9da 732 conf_ac = &wl->conf.tx.ac_conf[i];
0603d891
EP		 733 /* TODO: fix */
734 ret = wl1271_acx_ac_cfg(wl, NULL, conf_ac->ac, conf_ac->cw_min,
9987a9da
JO		 735 conf_ac->cw_max, conf_ac->aifsn,
736 conf_ac->tx_op_limit);
737 if (ret < 0)
738 goto out_free_memmap;
739
12419cce 740 conf_tid = &wl->conf.tx.tid_conf[i];
0603d891
EP		 741 /* TODO: fix */
742 ret = wl1271_acx_tid_cfg(wl, NULL, conf_tid->queue_id,
12419cce
LC		 743 conf_tid->channel_type,
744 conf_tid->tsid,
745 conf_tid->ps_scheme,
746 conf_tid->ack_policy,
747 conf_tid->apsd_conf[0],
748 conf_tid->apsd_conf[1]);
749 if (ret < 0)
750 goto out_free_memmap;
751 }
752
12419cce 753 /* Enable data path */
94210897 754 ret = wl1271_cmd_data_path(wl, 1);
f5fc0f86 755 if (ret < 0)
12419cce
LC		 756 goto out_free_memmap;
757
758 /* Configure for CAM power saving (ie. always active) */
759 ret = wl1271_acx_sleep_auth(wl, WL1271_PSM_CAM);
760 if (ret < 0)
761 goto out_free_memmap;
762
763 /* configure PM */
764 ret = wl1271_acx_pm_config(wl);
765 if (ret < 0)
766 goto out_free_memmap;
f5fc0f86
LC		 767
768 return 0;
12419cce
LC		 769
770 out_free_memmap:
771 kfree(wl->target_mem_map);
772 wl->target_mem_map = NULL;
773
774 return ret;
f5fc0f86
LC		 775}
776
9b17f1b3 777static void wl12xx_irq_ps_regulate_link(struct wl1271 *wl, u8 hlid, u8 tx_pkts)
b622d992 778{
da03209e 779 bool fw_ps, single_sta;
b622d992 780
b622d992 781 fw_ps = test_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
da03209e 782 single_sta = (wl->active_sta_count == 1);
b622d992
AN		 783
784 /*
785 * Wake up from high level PS if the STA is asleep with too little
9b17f1b3 786 * packets in FW or if the STA is awake.
b622d992 787 */
9b17f1b3 788 if (!fw_ps || tx_pkts < WL1271_PS_STA_MAX_PACKETS)
b622d992
AN		 789 wl1271_ps_link_end(wl, hlid);
790
da03209e
AN		 791 /*
792 * Start high-level PS if the STA is asleep with enough blocks in FW.
793 * Make an exception if this is the only connected station. In this
794 * case FW-memory congestion is not a problem.
795 */
796 else if (!single_sta && fw_ps && tx_pkts >= WL1271_PS_STA_MAX_PACKETS)
b622d992
AN		 797 wl1271_ps_link_start(wl, hlid, true);
798}
799
9b17f1b3 800static void wl12xx_irq_update_links_status(struct wl1271 *wl,
c7ffb902 801 struct wl12xx_vif *wlvif,
9b17f1b3 802 struct wl12xx_fw_status *status)
b622d992 803{
c7ffb902 804 struct wl1271_link *lnk;
b622d992 805 u32 cur_fw_ps_map;
9b17f1b3
AN		 806 u8 hlid, cnt;
807
808 /* TODO: also use link_fast_bitmap here */
b622d992
AN		 809
810 cur_fw_ps_map = le32_to_cpu(status->link_ps_bitmap);
811 if (wl->ap_fw_ps_map != cur_fw_ps_map) {
812 wl1271_debug(DEBUG_PSM,
813 "link ps prev 0x%x cur 0x%x changed 0x%x",
814 wl->ap_fw_ps_map, cur_fw_ps_map,
815 wl->ap_fw_ps_map ^ cur_fw_ps_map);
816
817 wl->ap_fw_ps_map = cur_fw_ps_map;
818 }
819
c7ffb902
EP		 820 for_each_set_bit(hlid, wlvif->ap.sta_hlid_map, WL12XX_MAX_LINKS) {
821 lnk = &wl->links[hlid];
822 cnt = status->tx_lnk_free_pkts[hlid] - lnk->prev_freed_pkts;
b622d992 823
c7ffb902
EP		 824 lnk->prev_freed_pkts = status->tx_lnk_free_pkts[hlid];
825 lnk->allocated_pkts -= cnt;
9b17f1b3 826
c7ffb902 827 wl12xx_irq_ps_regulate_link(wl, hlid, lnk->allocated_pkts);
b622d992
AN		 828 }
829}
830
4d56ad9c
EP		 831static void wl12xx_fw_status(struct wl1271 *wl,
832 struct wl12xx_fw_status *status)
f5fc0f86 833{
536129c8
EP		 834 struct ieee80211_vif *vif = wl->vif; /* TODO: get as param */
835 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
ac5e1e39 836 struct timespec ts;
13b107dd 837 u32 old_tx_blk_count = wl->tx_blocks_available;
4d56ad9c 838 int avail, freed_blocks;
bf54e301 839 int i;
f5fc0f86 840
4d56ad9c 841 wl1271_raw_read(wl, FW_STATUS_ADDR, status, sizeof(*status), false);
13b107dd 842
f5fc0f86
LC		 843 wl1271_debug(DEBUG_IRQ, "intr: 0x%x (fw_rx_counter = %d, "
844 "drv_rx_counter = %d, tx_results_counter = %d)",
845 status->intr,
846 status->fw_rx_counter,
847 status->drv_rx_counter,
848 status->tx_results_counter);
849
bf54e301
AN		 850 for (i = 0; i < NUM_TX_QUEUES; i++) {
851 /* prevent wrap-around in freed-packets counter */
742246f8 852 wl->tx_allocated_pkts[i] -=
bf54e301
AN		 853 (status->tx_released_pkts[i] -
854 wl->tx_pkts_freed[i]) & 0xff;
855
856 wl->tx_pkts_freed[i] = status->tx_released_pkts[i];
857 }
858
bdf91cfa
AN		 859 /* prevent wrap-around in total blocks counter */
860 if (likely(wl->tx_blocks_freed <=
861 le32_to_cpu(status->total_released_blks)))
862 freed_blocks = le32_to_cpu(status->total_released_blks) -
863 wl->tx_blocks_freed;
864 else
865 freed_blocks = 0x100000000LL - wl->tx_blocks_freed +
866 le32_to_cpu(status->total_released_blks);
867
4d56ad9c 868 wl->tx_blocks_freed = le32_to_cpu(status->total_released_blks);
13b107dd 869
7bb5d6ce
AN		 870 wl->tx_allocated_blocks -= freed_blocks;
871
4d56ad9c 872 avail = le32_to_cpu(status->tx_total) - wl->tx_allocated_blocks;
13b107dd 873
4d56ad9c
EP		 874 /*
875 * The FW might change the total number of TX memblocks before
876 * we get a notification about blocks being released. Thus, the
877 * available blocks calculation might yield a temporary result
878 * which is lower than the actual available blocks. Keeping in
879 * mind that only blocks that were allocated can be moved from
880 * TX to RX, tx_blocks_available should never decrease here.
881 */
882 wl->tx_blocks_available = max((int)wl->tx_blocks_available,
883 avail);
f5fc0f86 884
a522550a 885 /* if more blocks are available now, tx work can be scheduled */
13b107dd 886 if (wl->tx_blocks_available > old_tx_blk_count)
a522550a 887 clear_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags);
f5fc0f86 888
4d56ad9c 889 /* for AP update num of allocated TX blocks per link and ps status */
536129c8 890 if (wlvif->bss_type == BSS_TYPE_AP_BSS)
c7ffb902 891 wl12xx_irq_update_links_status(wl, wlvif, status);
4d56ad9c 892
f5fc0f86 893 /* update the host-chipset time offset */
ac5e1e39
JO		 894 getnstimeofday(&ts);
895 wl->time_offset = (timespec_to_ns(&ts) >> 10) -
896 (s64)le32_to_cpu(status->fw_localtime);
f5fc0f86
LC		 897}
898
a620865e
IY		 899static void wl1271_flush_deferred_work(struct wl1271 *wl)
900{
901 struct sk_buff *skb;
902
903 /* Pass all received frames to the network stack */
904 while ((skb = skb_dequeue(&wl->deferred_rx_queue)))
905 ieee80211_rx_ni(wl->hw, skb);
906
907 /* Return sent skbs to the network stack */
908 while ((skb = skb_dequeue(&wl->deferred_tx_queue)))
c27d3acc 909 ieee80211_tx_status_ni(wl->hw, skb);
a620865e
IY		 910}
911
912static void wl1271_netstack_work(struct work_struct *work)
913{
914 struct wl1271 *wl =
915 container_of(work, struct wl1271, netstack_work);
916
917 do {
918 wl1271_flush_deferred_work(wl);
919 } while (skb_queue_len(&wl->deferred_rx_queue));
920}
1e73eb62 921
a620865e
IY		 922#define WL1271_IRQ_MAX_LOOPS 256
923
924irqreturn_t wl1271_irq(int irq, void *cookie)
f5fc0f86 925{
f5fc0f86 926 int ret;
c15f63bf 927 u32 intr;
1e73eb62 928 int loopcount = WL1271_IRQ_MAX_LOOPS;
a620865e
IY		 929 struct wl1271 *wl = (struct wl1271 *)cookie;
930 bool done = false;
931 unsigned int defer_count;
b07d4037
IY		 932 unsigned long flags;
933
934 /* TX might be handled here, avoid redundant work */
935 set_bit(WL1271_FLAG_TX_PENDING, &wl->flags);
936 cancel_work_sync(&wl->tx_work);
f5fc0f86 937
341b7cde
IY		 938 /*
939 * In case edge triggered interrupt must be used, we cannot iterate
940 * more than once without introducing race conditions with the hardirq.
941 */
942 if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
943 loopcount = 1;
944
f5fc0f86
LC		 945 mutex_lock(&wl->mutex);
946
947 wl1271_debug(DEBUG_IRQ, "IRQ work");
948
1e73eb62 949 if (unlikely(wl->state == WL1271_STATE_OFF))
f5fc0f86
LC		 950 goto out;
951
a620865e 952 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 953 if (ret < 0)
954 goto out;
955
a620865e
IY		 956 while (!done && loopcount--) {
957 /*
958 * In order to avoid a race with the hardirq, clear the flag
959 * before acknowledging the chip. Since the mutex is held,
960 * wl1271_ps_elp_wakeup cannot be called concurrently.
961 */
962 clear_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags);
963 smp_mb__after_clear_bit();
1e73eb62 964
4d56ad9c
EP		 965 wl12xx_fw_status(wl, wl->fw_status);
966 intr = le32_to_cpu(wl->fw_status->intr);
a620865e 967 intr &= WL1271_INTR_MASK;
1e73eb62 968 if (!intr) {
a620865e 969 done = true;
1e73eb62
JO		 970 continue;
971 }
f5fc0f86 972
ccc83b04
EP		 973 if (unlikely(intr & WL1271_ACX_INTR_WATCHDOG)) {
974 wl1271_error("watchdog interrupt received! "
975 "starting recovery.");
baacb9ae 976 wl12xx_queue_recovery_work(wl);
ccc83b04
EP		 977
978 /* restarting the chip. ignore any other interrupt. */
979 goto out;
980 }
981
a620865e 982 if (likely(intr & WL1271_ACX_INTR_DATA)) {
1e73eb62 983 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_DATA");
1fd2794f 984
4d56ad9c 985 wl12xx_rx(wl, wl->fw_status);
f5fc0f86 986
a522550a 987 /* Check if any tx blocks were freed */
b07d4037 988 spin_lock_irqsave(&wl->wl_lock, flags);
a522550a 989 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
f1a46384 990 wl1271_tx_total_queue_count(wl) > 0) {
b07d4037 991 spin_unlock_irqrestore(&wl->wl_lock, flags);
a522550a
IY		 992 /*
993 * In order to avoid starvation of the TX path,
994 * call the work function directly.
995 */
536129c8 996 wl1271_tx_work_locked(wl, wl->vif);
b07d4037
IY		 997 } else {
998 spin_unlock_irqrestore(&wl->wl_lock, flags);
a522550a
IY		 999 }
1000
8aad2464 1001 /* check for tx results */
4d56ad9c 1002 if (wl->fw_status->tx_results_counter !=
8aad2464
IY		 1003 (wl->tx_results_count & 0xff))
1004 wl1271_tx_complete(wl);
a620865e
IY		 1005
1006 /* Make sure the deferred queues don't get too long */
1007 defer_count = skb_queue_len(&wl->deferred_tx_queue) +
1008 skb_queue_len(&wl->deferred_rx_queue);
1009 if (defer_count > WL1271_DEFERRED_QUEUE_LIMIT)
1010 wl1271_flush_deferred_work(wl);
1e73eb62 1011 }
f5fc0f86 1012
1e73eb62
JO		 1013 if (intr & WL1271_ACX_INTR_EVENT_A) {
1014 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_A");
1015 wl1271_event_handle(wl, 0);
1016 }
f5fc0f86 1017
1e73eb62
JO		 1018 if (intr & WL1271_ACX_INTR_EVENT_B) {
1019 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_B");
1020 wl1271_event_handle(wl, 1);
1021 }
f5fc0f86 1022
1e73eb62
JO		 1023 if (intr & WL1271_ACX_INTR_INIT_COMPLETE)
1024 wl1271_debug(DEBUG_IRQ,
1025 "WL1271_ACX_INTR_INIT_COMPLETE");
f5fc0f86 1026
1e73eb62
JO		 1027 if (intr & WL1271_ACX_INTR_HW_AVAILABLE)
1028 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_HW_AVAILABLE");
c15f63bf 1029 }
f5fc0f86 1030
f5fc0f86
LC		 1031 wl1271_ps_elp_sleep(wl);
1032
1033out:
b07d4037
IY		 1034 spin_lock_irqsave(&wl->wl_lock, flags);
1035 /* In case TX was not handled here, queue TX work */
1036 clear_bit(WL1271_FLAG_TX_PENDING, &wl->flags);
1037 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
f1a46384 1038 wl1271_tx_total_queue_count(wl) > 0)
b07d4037
IY		 1039 ieee80211_queue_work(wl->hw, &wl->tx_work);
1040 spin_unlock_irqrestore(&wl->wl_lock, flags);
1041
f5fc0f86 1042 mutex_unlock(&wl->mutex);
a620865e
IY		 1043
1044 return IRQ_HANDLED;
f5fc0f86 1045}
a620865e 1046EXPORT_SYMBOL_GPL(wl1271_irq);
f5fc0f86 1047
f5fc0f86
LC		 1048static int wl1271_fetch_firmware(struct wl1271 *wl)
1049{
1050 const struct firmware *fw;
166d504e 1051 const char *fw_name;
f5fc0f86
LC		 1052 int ret;
1053
c302b2c9
AN		 1054 if (wl->chip.id == CHIP_ID_1283_PG20)
1055 fw_name = WL128X_FW_NAME;
1056 else
1057 fw_name = WL127X_FW_NAME;
166d504e
AN		 1058
1059 wl1271_debug(DEBUG_BOOT, "booting firmware %s", fw_name);
1060
1061 ret = request_firmware(&fw, fw_name, wl1271_wl_to_dev(wl));
f5fc0f86
LC		 1062
1063 if (ret < 0) {
1064 wl1271_error("could not get firmware: %d", ret);
1065 return ret;
1066 }
1067
1068 if (fw->size % 4) {
1069 wl1271_error("firmware size is not multiple of 32 bits: %zu",
1070 fw->size);
1071 ret = -EILSEQ;
1072 goto out;
1073 }
1074
166d504e 1075 vfree(wl->fw);
f5fc0f86 1076 wl->fw_len = fw->size;
1fba4974 1077 wl->fw = vmalloc(wl->fw_len);
f5fc0f86
LC		 1078
1079 if (!wl->fw) {
1080 wl1271_error("could not allocate memory for the firmware");
1081 ret = -ENOMEM;
1082 goto out;
1083 }
1084
1085 memcpy(wl->fw, fw->data, wl->fw_len);
f5fc0f86
LC		 1086 ret = 0;
1087
1088out:
1089 release_firmware(fw);
1090
1091 return ret;
1092}
1093
1094static int wl1271_fetch_nvs(struct wl1271 *wl)
1095{
1096 const struct firmware *fw;
1097 int ret;
1098
5aa42346 1099 ret = request_firmware(&fw, WL12XX_NVS_NAME, wl1271_wl_to_dev(wl));
f5fc0f86
LC		 1100
1101 if (ret < 0) {
1102 wl1271_error("could not get nvs file: %d", ret);
1103 return ret;
1104 }
1105
bc765bf3 1106 wl->nvs = kmemdup(fw->data, fw->size, GFP_KERNEL);
f5fc0f86
LC		 1107
1108 if (!wl->nvs) {
1109 wl1271_error("could not allocate memory for the nvs file");
1110 ret = -ENOMEM;
1111 goto out;
1112 }
1113
02fabb0e
JO		 1114 wl->nvs_len = fw->size;
1115
f5fc0f86
LC		 1116out:
1117 release_firmware(fw);
1118
1119 return ret;
1120}
1121
baacb9ae
IY		 1122void wl12xx_queue_recovery_work(struct wl1271 *wl)
1123{
1124 if (!test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
1125 ieee80211_queue_work(wl->hw, &wl->recovery_work);
1126}
1127
95dac04f
IY		 1128size_t wl12xx_copy_fwlog(struct wl1271 *wl, u8 *memblock, size_t maxlen)
1129{
1130 size_t len = 0;
1131
1132 /* The FW log is a length-value list, find where the log end */
1133 while (len < maxlen) {
1134 if (memblock[len] == 0)
1135 break;
1136 if (len + memblock[len] + 1 > maxlen)
1137 break;
1138 len += memblock[len] + 1;
1139 }
1140
1141 /* Make sure we have enough room */
1142 len = min(len, (size_t)(PAGE_SIZE - wl->fwlog_size));
1143
1144 /* Fill the FW log file, consumed by the sysfs fwlog entry */
1145 memcpy(wl->fwlog + wl->fwlog_size, memblock, len);
1146 wl->fwlog_size += len;
1147
1148 return len;
1149}
1150
1151static void wl12xx_read_fwlog_panic(struct wl1271 *wl)
1152{
1153 u32 addr;
1154 u32 first_addr;
1155 u8 *block;
1156
1157 if ((wl->quirks & WL12XX_QUIRK_FWLOG_NOT_IMPLEMENTED) ||
1158 (wl->conf.fwlog.mode != WL12XX_FWLOG_ON_DEMAND) ||
1159 (wl->conf.fwlog.mem_blocks == 0))
1160 return;
1161
1162 wl1271_info("Reading FW panic log");
1163
1164 block = kmalloc(WL12XX_HW_BLOCK_SIZE, GFP_KERNEL);
1165 if (!block)
1166 return;
1167
1168 /*
1169 * Make sure the chip is awake and the logger isn't active.
1170 * This might fail if the firmware hanged.
1171 */
1172 if (!wl1271_ps_elp_wakeup(wl))
1173 wl12xx_cmd_stop_fwlog(wl);
1174
1175 /* Read the first memory block address */
4d56ad9c
EP		 1176 wl12xx_fw_status(wl, wl->fw_status);
1177 first_addr = le32_to_cpu(wl->fw_status->log_start_addr);
95dac04f
IY		 1178 if (!first_addr)
1179 goto out;
1180
1181 /* Traverse the memory blocks linked list */
1182 addr = first_addr;
1183 do {
1184 memset(block, 0, WL12XX_HW_BLOCK_SIZE);
1185 wl1271_read_hwaddr(wl, addr, block, WL12XX_HW_BLOCK_SIZE,
1186 false);
1187
1188 /*
1189 * Memory blocks are linked to one another. The first 4 bytes
1190 * of each memory block hold the hardware address of the next
1191 * one. The last memory block points to the first one.
1192 */
4d56ad9c 1193 addr = le32_to_cpup((__le32 *)block);
95dac04f
IY		 1194 if (!wl12xx_copy_fwlog(wl, block + sizeof(addr),
1195 WL12XX_HW_BLOCK_SIZE - sizeof(addr)))
1196 break;
1197 } while (addr && (addr != first_addr));
1198
1199 wake_up_interruptible(&wl->fwlog_waitq);
1200
1201out:
1202 kfree(block);
1203}
1204
52b0e7a6
JO		 1205static void wl1271_recovery_work(struct work_struct *work)
1206{
1207 struct wl1271 *wl =
1208 container_of(work, struct wl1271, recovery_work);
1209
1210 mutex_lock(&wl->mutex);
1211
1212 if (wl->state != WL1271_STATE_ON)
1213 goto out;
1214
baacb9ae
IY		 1215 /* Avoid a recursive recovery */
1216 set_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
1217
95dac04f
IY		 1218 wl12xx_read_fwlog_panic(wl);
1219
52dcaf57
AN		 1220 wl1271_info("Hardware recovery in progress. FW ver: %s pc: 0x%x",
1221 wl->chip.fw_ver_str, wl1271_read32(wl, SCR_PAD4));
52b0e7a6 1222
2a5bff09
EP		 1223 BUG_ON(bug_on_recovery);
1224
b992c682
OK		 1225 /*
1226 * Advance security sequence number to overcome potential progress
1227 * in the firmware during recovery. This doens't hurt if the network is
1228 * not encrypted.
1229 */
1230 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags) ||
1231 test_bit(WL1271_FLAG_AP_STARTED, &wl->flags))
1232 wl->tx_security_seq += WL1271_TX_SQN_POST_RECOVERY_PADDING;
1233
7dece1c8
AN		 1234 /* Prevent spurious TX during FW restart */
1235 ieee80211_stop_queues(wl->hw);
1236
33c2c06c
LC		 1237 if (wl->sched_scanning) {
1238 ieee80211_sched_scan_stopped(wl->hw);
1239 wl->sched_scanning = false;
1240 }
1241
52b0e7a6 1242 /* reboot the chipset */
536129c8 1243 __wl1271_op_remove_interface(wl, wl->vif, false);
baacb9ae
IY		 1244
1245 clear_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
1246
52b0e7a6
JO		 1247 ieee80211_restart_hw(wl->hw);
1248
7dece1c8
AN		 1249 /*
1250 * Its safe to enable TX now - the queues are stopped after a request
1251 * to restart the HW.
1252 */
1253 ieee80211_wake_queues(wl->hw);
1254
52b0e7a6
JO		 1255out:
1256 mutex_unlock(&wl->mutex);
1257}
1258
f5fc0f86
LC		 1259static void wl1271_fw_wakeup(struct wl1271 *wl)
1260{
1261 u32 elp_reg;
1262
1263 elp_reg = ELPCTRL_WAKE_UP;
74621417 1264 wl1271_raw_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg);
f5fc0f86
LC		 1265}
1266
1267static int wl1271_setup(struct wl1271 *wl)
1268{
1269 wl->fw_status = kmalloc(sizeof(*wl->fw_status), GFP_KERNEL);
1270 if (!wl->fw_status)
1271 return -ENOMEM;
1272
1273 wl->tx_res_if = kmalloc(sizeof(*wl->tx_res_if), GFP_KERNEL);
1274 if (!wl->tx_res_if) {
1275 kfree(wl->fw_status);
1276 return -ENOMEM;
1277 }
1278
f5fc0f86
LC		 1279 return 0;
1280}
1281
1282static int wl1271_chip_wakeup(struct wl1271 *wl)
1283{
451de97a 1284 struct wl1271_partition_set partition;
f5fc0f86
LC		 1285 int ret = 0;
1286
01ac17ec 1287 msleep(WL1271_PRE_POWER_ON_SLEEP);
2cc78ff7
OBC		 1288 ret = wl1271_power_on(wl);
1289 if (ret < 0)
1290 goto out;
f5fc0f86 1291 msleep(WL1271_POWER_ON_SLEEP);
9b280722
TP		 1292 wl1271_io_reset(wl);
1293 wl1271_io_init(wl);
f5fc0f86
LC		 1294
1295 /* We don't need a real memory partition here, because we only want
1296 * to use the registers at this point. */
451de97a
JO		 1297 memset(&partition, 0, sizeof(partition));
1298 partition.reg.start = REGISTERS_BASE;
1299 partition.reg.size = REGISTERS_DOWN_SIZE;
1300 wl1271_set_partition(wl, &partition);
f5fc0f86
LC		 1301
1302 /* ELP module wake up */
1303 wl1271_fw_wakeup(wl);
1304
1305 /* whal_FwCtrl_BootSm() */
1306
1307 /* 0. read chip id from CHIP_ID */
7b048c52 1308 wl->chip.id = wl1271_read32(wl, CHIP_ID_B);
f5fc0f86
LC		 1309
1310 /* 1. check if chip id is valid */
1311
1312 switch (wl->chip.id) {
1313 case CHIP_ID_1271_PG10:
1314 wl1271_warning("chip id 0x%x (1271 PG10) support is obsolete",
1315 wl->chip.id);
1316
1317 ret = wl1271_setup(wl);
1318 if (ret < 0)
9ccd9217 1319 goto out;
f5fc0f86
LC		 1320 break;
1321 case CHIP_ID_1271_PG20:
1322 wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1271 PG20)",
1323 wl->chip.id);
1324
1325 ret = wl1271_setup(wl);
1326 if (ret < 0)
9ccd9217 1327 goto out;
f5fc0f86 1328 break;
0830ceed
SL		 1329 case CHIP_ID_1283_PG20:
1330 wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1283 PG20)",
1331 wl->chip.id);
1332
1333 ret = wl1271_setup(wl);
1334 if (ret < 0)
1335 goto out;
0c005048 1336
0da13da7
IY		 1337 if (wl1271_set_block_size(wl))
1338 wl->quirks |= WL12XX_QUIRK_BLOCKSIZE_ALIGNMENT;
0830ceed
SL		 1339 break;
1340 case CHIP_ID_1283_PG10:
f5fc0f86 1341 default:
9ccd9217 1342 wl1271_warning("unsupported chip id: 0x%x", wl->chip.id);
f5fc0f86 1343 ret = -ENODEV;
9ccd9217 1344 goto out;
f5fc0f86
LC		 1345 }
1346
c302b2c9 1347 if (wl->fw == NULL) {
f5fc0f86
LC		 1348 ret = wl1271_fetch_firmware(wl);
1349 if (ret < 0)
9ccd9217 1350 goto out;
f5fc0f86
LC		 1351 }
1352
1353 /* No NVS from netlink, try to get it from the filesystem */
1354 if (wl->nvs == NULL) {
1355 ret = wl1271_fetch_nvs(wl);
1356 if (ret < 0)
9ccd9217 1357 goto out;
f5fc0f86
LC		 1358 }
1359
1360out:
1361 return ret;
1362}
1363
f5fc0f86
LC		 1364int wl1271_plt_start(struct wl1271 *wl)
1365{
9ccd9217 1366 int retries = WL1271_BOOT_RETRIES;
6f07b72a 1367 struct wiphy *wiphy = wl->hw->wiphy;
f5fc0f86
LC		 1368 int ret;
1369
1370 mutex_lock(&wl->mutex);
1371
1372 wl1271_notice("power up");
1373
1374 if (wl->state != WL1271_STATE_OFF) {
1375 wl1271_error("cannot go into PLT state because not "
1376 "in off state: %d", wl->state);
1377 ret = -EBUSY;
1378 goto out;
1379 }
1380
9ccd9217
JO		 1381 while (retries) {
1382 retries--;
1383 ret = wl1271_chip_wakeup(wl);
1384 if (ret < 0)
1385 goto power_off;
f5fc0f86 1386
9ccd9217
JO		 1387 ret = wl1271_boot(wl);
1388 if (ret < 0)
1389 goto power_off;
eb5b28d0 1390
9ccd9217
JO		 1391 ret = wl1271_plt_init(wl);
1392 if (ret < 0)
1393 goto irq_disable;
bd5ea18f 1394
9ccd9217
JO		 1395 wl->state = WL1271_STATE_PLT;
1396 wl1271_notice("firmware booted in PLT mode (%s)",
4b7fac77 1397 wl->chip.fw_ver_str);
e7ddf549 1398
6f07b72a
GK		 1399 /* update hw/fw version info in wiphy struct */
1400 wiphy->hw_version = wl->chip.id;
1401 strncpy(wiphy->fw_version, wl->chip.fw_ver_str,
1402 sizeof(wiphy->fw_version));
1403
9ccd9217 1404 goto out;
eb5b28d0 1405
9ccd9217 1406irq_disable:
9ccd9217
JO		 1407 mutex_unlock(&wl->mutex);
1408 /* Unlocking the mutex in the middle of handling is
1409 inherently unsafe. In this case we deem it safe to do,
1410 because we need to let any possibly pending IRQ out of
1411 the system (and while we are WL1271_STATE_OFF the IRQ
1412 work function will not do anything.) Also, any other
1413 possible concurrent operations will fail due to the
1414 current state, hence the wl1271 struct should be safe. */
a620865e
IY		 1415 wl1271_disable_interrupts(wl);
1416 wl1271_flush_deferred_work(wl);
1417 cancel_work_sync(&wl->netstack_work);
9ccd9217
JO		 1418 mutex_lock(&wl->mutex);
1419power_off:
1420 wl1271_power_off(wl);
1421 }
f5fc0f86 1422
9ccd9217
JO		 1423 wl1271_error("firmware boot in PLT mode failed despite %d retries",
1424 WL1271_BOOT_RETRIES);
f5fc0f86
LC		 1425out:
1426 mutex_unlock(&wl->mutex);
1427
1428 return ret;
1429}
1430
4623ec7d 1431static int __wl1271_plt_stop(struct wl1271 *wl)
f5fc0f86
LC		 1432{
1433 int ret = 0;
1434
f5fc0f86
LC		 1435 wl1271_notice("power down");
1436
1437 if (wl->state != WL1271_STATE_PLT) {
1438 wl1271_error("cannot power down because not in PLT "
1439 "state: %d", wl->state);
1440 ret = -EBUSY;
1441 goto out;
1442 }
1443
f5fc0f86
LC		 1444 wl1271_power_off(wl);
1445
1446 wl->state = WL1271_STATE_OFF;
bd5ea18f 1447 wl->rx_counter = 0;
f5fc0f86 1448
f5fc0f86 1449 mutex_unlock(&wl->mutex);
a620865e
IY		 1450 wl1271_disable_interrupts(wl);
1451 wl1271_flush_deferred_work(wl);
1452 cancel_work_sync(&wl->netstack_work);
52b0e7a6 1453 cancel_work_sync(&wl->recovery_work);
4ae3fa87
JO		 1454 mutex_lock(&wl->mutex);
1455out:
1456 return ret;
1457}
1458
1459int wl1271_plt_stop(struct wl1271 *wl)
1460{
1461 int ret;
8c7f4f31 1462
4ae3fa87
JO		 1463 mutex_lock(&wl->mutex);
1464 ret = __wl1271_plt_stop(wl);
1465 mutex_unlock(&wl->mutex);
f5fc0f86
LC		 1466 return ret;
1467}
1468
7bb45683 1469static void wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
f5fc0f86
LC		 1470{
1471 struct wl1271 *wl = hw->priv;
a8ab39a4
EP		 1472 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
1473 struct ieee80211_vif *vif = info->control.vif;
1474 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
830fb67b 1475 unsigned long flags;
708bb3cf 1476 int q, mapping;
d6a3cc2e 1477 u8 hlid;
f5fc0f86 1478
708bb3cf
AN		 1479 mapping = skb_get_queue_mapping(skb);
1480 q = wl1271_tx_get_queue(mapping);
b07d4037 1481
d6a3cc2e 1482 hlid = wl12xx_tx_get_hlid(wl, wlvif, skb);
b07d4037 1483
830fb67b 1484 spin_lock_irqsave(&wl->wl_lock, flags);
b07d4037 1485
830fb67b 1486 /* queue the packet */
d6a3cc2e
EP		 1487 if (hlid == WL12XX_INVALID_LINK_ID ||
1488 !test_bit(hlid, wlvif->links_map)) {
1489 wl1271_debug(DEBUG_TX, "DROP skb hlid %d q %d", hlid, q);
1490 dev_kfree_skb(skb);
1491 goto out;
a8c0ddb5 1492 }
f5fc0f86 1493
d6a3cc2e
EP		 1494 wl1271_debug(DEBUG_TX, "queue skb hlid %d q %d", hlid, q);
1495 skb_queue_tail(&wl->links[hlid].tx_queue[q], skb);
1496
04b4d69c
AN		 1497 wl->tx_queue_count[q]++;
1498
1499 /*
1500 * The workqueue is slow to process the tx_queue and we need stop
1501 * the queue here, otherwise the queue will get too long.
1502 */
1503 if (wl->tx_queue_count[q] >= WL1271_TX_QUEUE_HIGH_WATERMARK) {
1504 wl1271_debug(DEBUG_TX, "op_tx: stopping queues for q %d", q);
1505 ieee80211_stop_queue(wl->hw, mapping);
1506 set_bit(q, &wl->stopped_queues_map);
1507 }
1508
f5fc0f86
LC		 1509 /*
1510 * The chip specific setup must run before the first TX packet -
1511 * before that, the tx_work will not be initialized!
1512 */
1513
b07d4037
IY		 1514 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
1515 !test_bit(WL1271_FLAG_TX_PENDING, &wl->flags))
a522550a 1516 ieee80211_queue_work(wl->hw, &wl->tx_work);
b07d4037 1517
04216da3 1518out:
b07d4037 1519 spin_unlock_irqrestore(&wl->wl_lock, flags);
f5fc0f86
LC		 1520}
1521
ae47c45f
SL		 1522int wl1271_tx_dummy_packet(struct wl1271 *wl)
1523{
990f5de7 1524 unsigned long flags;
14623787
AN		 1525 int q;
1526
1527 /* no need to queue a new dummy packet if one is already pending */
1528 if (test_bit(WL1271_FLAG_DUMMY_PACKET_PENDING, &wl->flags))
1529 return 0;
1530
1531 q = wl1271_tx_get_queue(skb_get_queue_mapping(wl->dummy_packet));
990f5de7
IY		 1532
1533 spin_lock_irqsave(&wl->wl_lock, flags);
1534 set_bit(WL1271_FLAG_DUMMY_PACKET_PENDING, &wl->flags);
f1a46384 1535 wl->tx_queue_count[q]++;
990f5de7
IY		 1536 spin_unlock_irqrestore(&wl->wl_lock, flags);
1537
1538 /* The FW is low on RX memory blocks, so send the dummy packet asap */
1539 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags))
536129c8 1540 wl1271_tx_work_locked(wl, wl->vif);
990f5de7
IY		 1541
1542 /*
1543 * If the FW TX is busy, TX work will be scheduled by the threaded
1544 * interrupt handler function
1545 */
1546 return 0;
1547}
1548
1549/*
1550 * The size of the dummy packet should be at least 1400 bytes. However, in
1551 * order to minimize the number of bus transactions, aligning it to 512 bytes
1552 * boundaries could be beneficial, performance wise
1553 */
1554#define TOTAL_TX_DUMMY_PACKET_SIZE (ALIGN(1400, 512))
1555
cf27d867 1556static struct sk_buff *wl12xx_alloc_dummy_packet(struct wl1271 *wl)
990f5de7
IY		 1557{
1558 struct sk_buff *skb;
ae47c45f 1559 struct ieee80211_hdr_3addr *hdr;
990f5de7
IY		 1560 unsigned int dummy_packet_size;
1561
1562 dummy_packet_size = TOTAL_TX_DUMMY_PACKET_SIZE -
1563 sizeof(struct wl1271_tx_hw_descr) - sizeof(*hdr);
ae47c45f 1564
990f5de7 1565 skb = dev_alloc_skb(TOTAL_TX_DUMMY_PACKET_SIZE);
ae47c45f 1566 if (!skb) {
990f5de7
IY		 1567 wl1271_warning("Failed to allocate a dummy packet skb");
1568 return NULL;
ae47c45f
SL		 1569 }
1570
1571 skb_reserve(skb, sizeof(struct wl1271_tx_hw_descr));
1572
1573 hdr = (struct ieee80211_hdr_3addr *) skb_put(skb, sizeof(*hdr));
1574 memset(hdr, 0, sizeof(*hdr));
1575 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
990f5de7
IY		 1576 IEEE80211_STYPE_NULLFUNC |
1577 IEEE80211_FCTL_TODS);
ae47c45f 1578
990f5de7 1579 memset(skb_put(skb, dummy_packet_size), 0, dummy_packet_size);
ae47c45f 1580
18b92ffa
LC		 1581 /* Dummy packets require the TID to be management */
1582 skb->priority = WL1271_TID_MGMT;
ae47c45f 1583
990f5de7 1584 /* Initialize all fields that might be used */
86c438f4 1585 skb_set_queue_mapping(skb, 0);
990f5de7 1586 memset(IEEE80211_SKB_CB(skb), 0, sizeof(struct ieee80211_tx_info));
ae47c45f 1587
990f5de7 1588 return skb;
ae47c45f
SL		 1589}
1590
990f5de7 1591
c2c192ac
JO		 1592static struct notifier_block wl1271_dev_notifier = {
1593 .notifier_call = wl1271_dev_notify,
1594};
1595
f634a4e7 1596#ifdef CONFIG_PM
d2d66c56
EP		 1597static int wl1271_configure_suspend_sta(struct wl1271 *wl,
1598 struct wl12xx_vif *wlvif)
9439064c 1599{
e85d1629 1600 int ret = 0;
9439064c 1601
9439064c
EP		 1602 mutex_lock(&wl->mutex);
1603
e85d1629
EP		 1604 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
1605 goto out_unlock;
1606
9439064c
EP		 1607 ret = wl1271_ps_elp_wakeup(wl);
1608 if (ret < 0)
1609 goto out_unlock;
1610
1611 /* enter psm if needed*/
1612 if (!test_bit(WL1271_FLAG_PSM, &wl->flags)) {
1613 DECLARE_COMPLETION_ONSTACK(compl);
1614
6ec45dc2 1615 wlvif->ps_compl = &compl;
0603d891 1616 ret = wl1271_ps_set_mode(wl, wlvif, STATION_POWER_SAVE_MODE,
d2d66c56 1617 wlvif->basic_rate, true);
9439064c
EP		 1618 if (ret < 0)
1619 goto out_sleep;
1620
1621 /* we must unlock here so we will be able to get events */
1622 wl1271_ps_elp_sleep(wl);
1623 mutex_unlock(&wl->mutex);
1624
1625 ret = wait_for_completion_timeout(
1626 &compl, msecs_to_jiffies(WL1271_PS_COMPLETE_TIMEOUT));
1627 if (ret <= 0) {
1628 wl1271_warning("couldn't enter ps mode!");
1629 ret = -EBUSY;
1630 goto out;
1631 }
1632
1633 /* take mutex again, and wakeup */
1634 mutex_lock(&wl->mutex);
1635
1636 ret = wl1271_ps_elp_wakeup(wl);
1637 if (ret < 0)
1638 goto out_unlock;
1639 }
1640out_sleep:
1641 wl1271_ps_elp_sleep(wl);
1642out_unlock:
1643 mutex_unlock(&wl->mutex);
1644out:
1645 return ret;
1646
1647}
1648
0603d891
EP		 1649static int wl1271_configure_suspend_ap(struct wl1271 *wl,
1650 struct wl12xx_vif *wlvif)
8a7cf3fe 1651{
e85d1629 1652 int ret = 0;
8a7cf3fe
EP		 1653
1654 mutex_lock(&wl->mutex);
1655
e85d1629
EP		 1656 if (!test_bit(WL1271_FLAG_AP_STARTED, &wl->flags))
1657 goto out_unlock;
1658
8a7cf3fe
EP		 1659 ret = wl1271_ps_elp_wakeup(wl);
1660 if (ret < 0)
1661 goto out_unlock;
1662
0603d891 1663 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, true);
8a7cf3fe
EP		 1664
1665 wl1271_ps_elp_sleep(wl);
1666out_unlock:
1667 mutex_unlock(&wl->mutex);
1668 return ret;
1669
1670}
1671
d2d66c56
EP		 1672static int wl1271_configure_suspend(struct wl1271 *wl,
1673 struct wl12xx_vif *wlvif)
8a7cf3fe 1674{
536129c8 1675 if (wlvif->bss_type == BSS_TYPE_STA_BSS)
d2d66c56 1676 return wl1271_configure_suspend_sta(wl, wlvif);
536129c8 1677 if (wlvif->bss_type == BSS_TYPE_AP_BSS)
0603d891 1678 return wl1271_configure_suspend_ap(wl, wlvif);
8a7cf3fe
EP		 1679 return 0;
1680}
1681
d2d66c56
EP		 1682static void wl1271_configure_resume(struct wl1271 *wl,
1683 struct wl12xx_vif *wlvif)
9439064c
EP		 1684{
1685 int ret;
536129c8
EP		 1686 bool is_sta = wlvif->bss_type == BSS_TYPE_STA_BSS;
1687 bool is_ap = wlvif->bss_type == BSS_TYPE_AP_BSS;
9439064c 1688
8a7cf3fe 1689 if (!is_sta && !is_ap)
9439064c
EP		 1690 return;
1691
1692 mutex_lock(&wl->mutex);
1693 ret = wl1271_ps_elp_wakeup(wl);
1694 if (ret < 0)
1695 goto out;
1696
8a7cf3fe
EP		 1697 if (is_sta) {
1698 /* exit psm if it wasn't configured */
1699 if (!test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags))
0603d891 1700 wl1271_ps_set_mode(wl, wlvif, STATION_ACTIVE_MODE,
d2d66c56 1701 wlvif->basic_rate, true);
8a7cf3fe 1702 } else if (is_ap) {
0603d891 1703 wl1271_acx_beacon_filter_opt(wl, wlvif, false);
8a7cf3fe 1704 }
9439064c
EP		 1705
1706 wl1271_ps_elp_sleep(wl);
1707out:
1708 mutex_unlock(&wl->mutex);
1709}
1710
402e4861
EP		 1711static int wl1271_op_suspend(struct ieee80211_hw *hw,
1712 struct cfg80211_wowlan *wow)
1713{
1714 struct wl1271 *wl = hw->priv;
d2d66c56
EP		 1715 struct ieee80211_vif *vif = wl->vif; /* TODO: get as param */
1716 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4a859df8
EP		 1717 int ret;
1718
402e4861 1719 wl1271_debug(DEBUG_MAC80211, "mac80211 suspend wow=%d", !!wow);
4a859df8 1720 WARN_ON(!wow || !wow->any);
f44e5868 1721
4a859df8 1722 wl->wow_enabled = true;
d2d66c56 1723 ret = wl1271_configure_suspend(wl, wlvif);
4a859df8
EP		 1724 if (ret < 0) {
1725 wl1271_warning("couldn't prepare device to suspend");
1726 return ret;
1727 }
1728 /* flush any remaining work */
1729 wl1271_debug(DEBUG_MAC80211, "flushing remaining works");
f44e5868 1730
4a859df8
EP		 1731 /*
1732 * disable and re-enable interrupts in order to flush
1733 * the threaded_irq
1734 */
1735 wl1271_disable_interrupts(wl);
1736
1737 /*
1738 * set suspended flag to avoid triggering a new threaded_irq
1739 * work. no need for spinlock as interrupts are disabled.
1740 */
1741 set_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
1742
1743 wl1271_enable_interrupts(wl);
1744 flush_work(&wl->tx_work);
252efa4f 1745 flush_delayed_work(&wlvif->pspoll_work);
4a859df8 1746 flush_delayed_work(&wl->elp_work);
f44e5868 1747
402e4861
EP		 1748 return 0;
1749}
1750
1751static int wl1271_op_resume(struct ieee80211_hw *hw)
1752{
1753 struct wl1271 *wl = hw->priv;
d2d66c56
EP		 1754 struct ieee80211_vif *vif = wl->vif; /* TODO: get as param */
1755 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4a859df8
EP		 1756 unsigned long flags;
1757 bool run_irq_work = false;
1758
402e4861
EP		 1759 wl1271_debug(DEBUG_MAC80211, "mac80211 resume wow=%d",
1760 wl->wow_enabled);
4a859df8 1761 WARN_ON(!wl->wow_enabled);
f44e5868
EP		 1762
1763 /*
1764 * re-enable irq_work enqueuing, and call irq_work directly if
1765 * there is a pending work.
1766 */
4a859df8
EP		 1767 spin_lock_irqsave(&wl->wl_lock, flags);
1768 clear_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
1769 if (test_and_clear_bit(WL1271_FLAG_PENDING_WORK, &wl->flags))
1770 run_irq_work = true;
1771 spin_unlock_irqrestore(&wl->wl_lock, flags);
9439064c 1772
4a859df8
EP		 1773 if (run_irq_work) {
1774 wl1271_debug(DEBUG_MAC80211,
1775 "run postponed irq_work directly");
1776 wl1271_irq(0, wl);
1777 wl1271_enable_interrupts(wl);
f44e5868 1778 }
d2d66c56 1779 wl1271_configure_resume(wl, wlvif);
ff91afc9 1780 wl->wow_enabled = false;
f44e5868 1781
402e4861
EP		 1782 return 0;
1783}
f634a4e7 1784#endif
402e4861 1785
f5fc0f86 1786static int wl1271_op_start(struct ieee80211_hw *hw)
1b72aecd
JO		 1787{
1788 wl1271_debug(DEBUG_MAC80211, "mac80211 start");
1789
1790 /*
1791 * We have to delay the booting of the hardware because
1792 * we need to know the local MAC address before downloading and
1793 * initializing the firmware. The MAC address cannot be changed
1794 * after boot, and without the proper MAC address, the firmware
1795 * will not function properly.
1796 *
1797 * The MAC address is first known when the corresponding interface
1798 * is added. That is where we will initialize the hardware.
1799 */
1800
1801 return 0;
1802}
1803
1804static void wl1271_op_stop(struct ieee80211_hw *hw)
1805{
baf6277a
EP		 1806 struct wl1271 *wl = hw->priv;
1807 int i;
1808
1b72aecd 1809 wl1271_debug(DEBUG_MAC80211, "mac80211 stop");
baf6277a
EP		 1810
1811 mutex_lock(&wl_list_mutex);
1812 list_del(&wl->list);
1813
1814 /*
1815 * this must be before the cancel_work calls below, so that the work
1816 * functions don't perform further work.
1817 */
1818 wl->state = WL1271_STATE_OFF;
1819 mutex_unlock(&wl_list_mutex);
1820
1821 wl1271_disable_interrupts(wl);
1822 wl1271_flush_deferred_work(wl);
1823 cancel_delayed_work_sync(&wl->scan_complete_work);
1824 cancel_work_sync(&wl->netstack_work);
1825 cancel_work_sync(&wl->tx_work);
1826 del_timer_sync(&wl->rx_streaming_timer);
1827 cancel_work_sync(&wl->rx_streaming_enable_work);
1828 cancel_work_sync(&wl->rx_streaming_disable_work);
1829 cancel_delayed_work_sync(&wl->elp_work);
1830
1831 /* let's notify MAC80211 about the remaining pending TX frames */
1832 wl12xx_tx_reset(wl, true);
1833 mutex_lock(&wl->mutex);
1834
1835 wl1271_power_off(wl);
1836
1837 wl->band = IEEE80211_BAND_2GHZ;
1838
1839 wl->rx_counter = 0;
1840 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
1841 wl->tx_blocks_available = 0;
1842 wl->tx_allocated_blocks = 0;
1843 wl->tx_results_count = 0;
1844 wl->tx_packets_count = 0;
1845 wl->time_offset = 0;
1846 wl->vif = NULL;
1847 wl->tx_spare_blocks = TX_HW_BLOCK_SPARE_DEFAULT;
1848 wl->ap_fw_ps_map = 0;
1849 wl->ap_ps_map = 0;
1850 wl->sched_scanning = false;
1851 memset(wl->roles_map, 0, sizeof(wl->roles_map));
1852 memset(wl->links_map, 0, sizeof(wl->links_map));
1853 memset(wl->roc_map, 0, sizeof(wl->roc_map));
1854 wl->active_sta_count = 0;
1855
1856 /* The system link is always allocated */
1857 __set_bit(WL12XX_SYSTEM_HLID, wl->links_map);
1858
1859 /*
1860 * this is performed after the cancel_work calls and the associated
1861 * mutex_lock, so that wl1271_op_add_interface does not accidentally
1862 * get executed before all these vars have been reset.
1863 */
1864 wl->flags = 0;
1865
1866 wl->tx_blocks_freed = 0;
1867
1868 for (i = 0; i < NUM_TX_QUEUES; i++) {
1869 wl->tx_pkts_freed[i] = 0;
1870 wl->tx_allocated_pkts[i] = 0;
1871 }
1872
1873 wl1271_debugfs_reset(wl);
1874
1875 kfree(wl->fw_status);
1876 wl->fw_status = NULL;
1877 kfree(wl->tx_res_if);
1878 wl->tx_res_if = NULL;
1879 kfree(wl->target_mem_map);
1880 wl->target_mem_map = NULL;
1881
1882 mutex_unlock(&wl->mutex);
1b72aecd
JO		 1883}
1884
536129c8 1885static u8 wl12xx_get_role_type(struct wl1271 *wl, struct wl12xx_vif *wlvif)
b78b47eb 1886{
536129c8 1887 switch (wlvif->bss_type) {
b78b47eb 1888 case BSS_TYPE_AP_BSS:
fb0e707c 1889 if (wlvif->p2p)
045c745f
EP		 1890 return WL1271_ROLE_P2P_GO;
1891 else
1892 return WL1271_ROLE_AP;
b78b47eb
EP		 1893
1894 case BSS_TYPE_STA_BSS:
fb0e707c 1895 if (wlvif->p2p)
045c745f
EP		 1896 return WL1271_ROLE_P2P_CL;
1897 else
1898 return WL1271_ROLE_STA;
b78b47eb 1899
227e81e1
EP		 1900 case BSS_TYPE_IBSS:
1901 return WL1271_ROLE_IBSS;
1902
b78b47eb 1903 default:
536129c8 1904 wl1271_error("invalid bss_type: %d", wlvif->bss_type);
b78b47eb
EP		 1905 }
1906 return WL12XX_INVALID_ROLE_TYPE;
1907}
1908
e936bbe0 1909static int wl12xx_init_vif_data(struct ieee80211_vif *vif)
87fbcb0f 1910{
e936bbe0
EP		 1911 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
1912
1913 /* make sure wlvif is zeroed */
1914 memset(wlvif, 0, sizeof(*wlvif));
1915
1916 switch (ieee80211_vif_type_p2p(vif)) {
1917 case NL80211_IFTYPE_P2P_CLIENT:
1918 wlvif->p2p = 1;
1919 /* fall-through */
1920 case NL80211_IFTYPE_STATION:
1921 wlvif->bss_type = BSS_TYPE_STA_BSS;
1922 break;
1923 case NL80211_IFTYPE_ADHOC:
1924 wlvif->bss_type = BSS_TYPE_IBSS;
1925 break;
1926 case NL80211_IFTYPE_P2P_GO:
1927 wlvif->p2p = 1;
1928 /* fall-through */
1929 case NL80211_IFTYPE_AP:
1930 wlvif->bss_type = BSS_TYPE_AP_BSS;
1931 break;
1932 default:
1933 wlvif->bss_type = MAX_BSS_TYPE;
1934 return -EOPNOTSUPP;
1935 }
1936
0603d891 1937 wlvif->role_id = WL12XX_INVALID_ROLE_ID;
7edebf56 1938 wlvif->dev_role_id = WL12XX_INVALID_ROLE_ID;
afaf8bdb 1939 wlvif->dev_hlid = WL12XX_INVALID_LINK_ID;
a8ab39a4 1940
e936bbe0
EP		 1941 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
1942 wlvif->bss_type == BSS_TYPE_IBSS) {
1943 /* init sta/ibss data */
1944 wlvif->sta.hlid = WL12XX_INVALID_LINK_ID;
1945
1946 } else {
1947 /* init ap data */
1948 wlvif->ap.bcast_hlid = WL12XX_INVALID_LINK_ID;
1949 wlvif->ap.global_hlid = WL12XX_INVALID_LINK_ID;
1950 }
a8ab39a4 1951
87fbcb0f 1952 wlvif->basic_rate_set = CONF_TX_RATE_MASK_BASIC;
d2d66c56 1953 wlvif->basic_rate = CONF_TX_RATE_MASK_BASIC;
30d0c8fd 1954 wlvif->rate_set = CONF_TX_RATE_MASK_BASIC;
6a899796
EP		 1955 wlvif->beacon_int = WL1271_DEFAULT_BEACON_INT;
1956
252efa4f
EP		 1957 INIT_DELAYED_WORK(&wlvif->pspoll_work, wl1271_pspoll_work);
1958
e936bbe0 1959 return 0;
87fbcb0f
EP		 1960}
1961
1d095475 1962static bool wl12xx_init_fw(struct wl1271 *wl)
f5fc0f86 1963{
9ccd9217 1964 int retries = WL1271_BOOT_RETRIES;
71125abd 1965 bool booted = false;
1d095475
EP		 1966 struct wiphy *wiphy = wl->hw->wiphy;
1967 int ret;
f5fc0f86 1968
9ccd9217
JO		 1969 while (retries) {
1970 retries--;
1971 ret = wl1271_chip_wakeup(wl);
1972 if (ret < 0)
1973 goto power_off;
f5fc0f86 1974
9ccd9217
JO		 1975 ret = wl1271_boot(wl);
1976 if (ret < 0)
1977 goto power_off;
f5fc0f86 1978
92c77c73
EP		 1979 ret = wl1271_hw_init(wl);
1980 if (ret < 0)
1981 goto irq_disable;
1982
71125abd
EP		 1983 booted = true;
1984 break;
eb5b28d0 1985
9ccd9217 1986irq_disable:
9ccd9217
JO		 1987 mutex_unlock(&wl->mutex);
1988 /* Unlocking the mutex in the middle of handling is
1989 inherently unsafe. In this case we deem it safe to do,
1990 because we need to let any possibly pending IRQ out of
1991 the system (and while we are WL1271_STATE_OFF the IRQ
1992 work function will not do anything.) Also, any other
1993 possible concurrent operations will fail due to the
1994 current state, hence the wl1271 struct should be safe. */
a620865e
IY		 1995 wl1271_disable_interrupts(wl);
1996 wl1271_flush_deferred_work(wl);
1997 cancel_work_sync(&wl->netstack_work);
9ccd9217
JO		 1998 mutex_lock(&wl->mutex);
1999power_off:
2000 wl1271_power_off(wl);
2001 }
eb5b28d0 2002
71125abd
EP		 2003 if (!booted) {
2004 wl1271_error("firmware boot failed despite %d retries",
2005 WL1271_BOOT_RETRIES);
2006 goto out;
2007 }
2008
4b7fac77 2009 wl1271_info("firmware booted (%s)", wl->chip.fw_ver_str);
71125abd
EP		 2010
2011 /* update hw/fw version info in wiphy struct */
2012 wiphy->hw_version = wl->chip.id;
4b7fac77 2013 strncpy(wiphy->fw_version, wl->chip.fw_ver_str,
71125abd
EP		 2014 sizeof(wiphy->fw_version));
2015
fb6a6819
LC		 2016 /*
2017 * Now we know if 11a is supported (info from the NVS), so disable
2018 * 11a channels if not supported
2019 */
2020 if (!wl->enable_11a)
2021 wiphy->bands[IEEE80211_BAND_5GHZ]->n_channels = 0;
2022
2023 wl1271_debug(DEBUG_MAC80211, "11a is %ssupported",
2024 wl->enable_11a ? "" : "not ");
2025
1d095475
EP		 2026 wl->state = WL1271_STATE_ON;
2027out:
2028 return booted;
2029}
2030
2031static int wl1271_op_add_interface(struct ieee80211_hw *hw,
2032 struct ieee80211_vif *vif)
2033{
2034 struct wl1271 *wl = hw->priv;
2035 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
2036 int ret = 0;
2037 u8 role_type;
2038 bool booted = false;
2039
2040 wl1271_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM",
2041 ieee80211_vif_type_p2p(vif), vif->addr);
2042
2043 mutex_lock(&wl->mutex);
2044 if (wl->vif) {
2045 wl1271_debug(DEBUG_MAC80211,
2046 "multiple vifs are not supported yet");
2047 ret = -EBUSY;
2048 goto out;
2049 }
2050
2051 /*
2052 * in some very corner case HW recovery scenarios its possible to
2053 * get here before __wl1271_op_remove_interface is complete, so
2054 * opt out if that is the case.
2055 */
2056 if (test_bit(WL1271_FLAG_IF_INITIALIZED, &wl->flags)) {
2057 ret = -EBUSY;
2058 goto out;
2059 }
2060
2061 ret = wl12xx_init_vif_data(vif);
2062 if (ret < 0)
2063 goto out;
2064
2065 wlvif->wl = wl;
2066 role_type = wl12xx_get_role_type(wl, wlvif);
2067 if (role_type == WL12XX_INVALID_ROLE_TYPE) {
2068 ret = -EINVAL;
2069 goto out;
2070 }
2071
2072 /*
2073 * TODO: after the nvs issue will be solved, move this block
2074 * to start(), and make sure here the driver is ON.
2075 */
2076 if (wl->state == WL1271_STATE_OFF) {
2077 /*
2078 * we still need this in order to configure the fw
2079 * while uploading the nvs
2080 */
2081 memcpy(wl->mac_addr, vif->addr, ETH_ALEN);
2082
2083 booted = wl12xx_init_fw(wl);
2084 if (!booted) {
2085 ret = -EINVAL;
2086 goto out;
2087 }
2088 }
2089
2090 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
2091 wlvif->bss_type == BSS_TYPE_IBSS) {
2092 /*
2093 * The device role is a special role used for
2094 * rx and tx frames prior to association (as
2095 * the STA role can get packets only from
2096 * its associated bssid)
2097 */
2098 ret = wl12xx_cmd_role_enable(wl, vif->addr,
2099 WL1271_ROLE_DEVICE,
2100 &wlvif->dev_role_id);
2101 if (ret < 0)
2102 goto out;
2103 }
2104
2105 ret = wl12xx_cmd_role_enable(wl, vif->addr,
2106 role_type, &wlvif->role_id);
2107 if (ret < 0)
2108 goto out;
2109
2110 ret = wl1271_init_vif_specific(wl, vif);
2111 if (ret < 0)
2112 goto out;
2113
2114 wl->vif = vif;
2115 set_bit(WL1271_FLAG_IF_INITIALIZED, &wl->flags);
eb5b28d0 2116out:
f5fc0f86
LC		 2117 mutex_unlock(&wl->mutex);
2118
f9f774c1 2119 mutex_lock(&wl_list_mutex);
eb887dfd 2120 if (!ret)
01c09162 2121 list_add(&wl->list, &wl_list);
f9f774c1 2122 mutex_unlock(&wl_list_mutex);
01c09162 2123
f5fc0f86
LC		 2124 return ret;
2125}
2126
7dece1c8 2127static void __wl1271_op_remove_interface(struct wl1271 *wl,
536129c8 2128 struct ieee80211_vif *vif,
7dece1c8 2129 bool reset_tx_queues)
f5fc0f86 2130{
536129c8 2131 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
baf6277a 2132 int ret;
f5fc0f86 2133
1b72aecd 2134 wl1271_debug(DEBUG_MAC80211, "mac80211 remove interface");
f5fc0f86 2135
13026dec
JO		 2136 /* because of hardware recovery, we may get here twice */
2137 if (wl->state != WL1271_STATE_ON)
2138 return;
2139
1b72aecd 2140 wl1271_info("down");
f5fc0f86 2141
8d2ef7bd 2142 /* enable dyn ps just in case (if left on due to fw crash etc) */
536129c8 2143 if (wlvif->bss_type == BSS_TYPE_STA_BSS)
baf6277a 2144 ieee80211_enable_dyn_ps(vif);
8d2ef7bd 2145
baf6277a
EP		 2146 if (wl->scan.state != WL1271_SCAN_STATE_IDLE &&
2147 wl->scan_vif == vif) {
08688d6b 2148 wl->scan.state = WL1271_SCAN_STATE_IDLE;
4a31c11c 2149 memset(wl->scan.scanned_ch, 0, sizeof(wl->scan.scanned_ch));
784f694d 2150 wl->scan_vif = NULL;
b739a42c 2151 wl->scan.req = NULL;
76a029fb 2152 ieee80211_scan_completed(wl->hw, true);
f5fc0f86
LC		 2153 }
2154
b78b47eb
EP		 2155 if (!test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags)) {
2156 /* disable active roles */
2157 ret = wl1271_ps_elp_wakeup(wl);
2158 if (ret < 0)
2159 goto deinit;
2160
536129c8 2161 if (wlvif->bss_type == BSS_TYPE_STA_BSS) {
7edebf56 2162 ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
04e8079c
EP		 2163 if (ret < 0)
2164 goto deinit;
2165 }
2166
0603d891 2167 ret = wl12xx_cmd_role_disable(wl, &wlvif->role_id);
b78b47eb
EP		 2168 if (ret < 0)
2169 goto deinit;
2170
2171 wl1271_ps_elp_sleep(wl);
2172 }
2173deinit:
e51ae9be 2174 /* clear all hlids (except system_hlid) */
154da67c 2175 wlvif->sta.hlid = WL12XX_INVALID_LINK_ID;
afaf8bdb 2176 wlvif->dev_hlid = WL12XX_INVALID_LINK_ID;
a8ab39a4
EP		 2177 wlvif->ap.bcast_hlid = WL12XX_INVALID_LINK_ID;
2178 wlvif->ap.global_hlid = WL12XX_INVALID_LINK_ID;
b78b47eb 2179
d6a3cc2e 2180 wl12xx_tx_reset_wlvif(wl, wlvif);
af7fbb28
EP		 2181 wl->bitrate_masks[IEEE80211_BAND_2GHZ] = wl->conf.tx.basic_rate;
2182 wl->bitrate_masks[IEEE80211_BAND_5GHZ] = wl->conf.tx.basic_rate_5;
170d0e67 2183 wl1271_free_ap_keys(wl, wlvif);
c7ffb902 2184 memset(wlvif->ap.sta_hlid_map, 0, sizeof(wlvif->ap.sta_hlid_map));
0603d891 2185 wlvif->role_id = WL12XX_INVALID_ROLE_ID;
7edebf56 2186 wlvif->dev_role_id = WL12XX_INVALID_ROLE_ID;
d6e19d13 2187
baf6277a
EP		 2188 mutex_unlock(&wl->mutex);
2189 cancel_delayed_work_sync(&wlvif->pspoll_work);
bd9dc49c 2190
baf6277a 2191 mutex_lock(&wl->mutex);
52a2a375 2192}
bd9dc49c 2193
52a2a375
JO		 2194static void wl1271_op_remove_interface(struct ieee80211_hw *hw,
2195 struct ieee80211_vif *vif)
2196{
2197 struct wl1271 *wl = hw->priv;
2198
2199 mutex_lock(&wl->mutex);
67353299
JO		 2200 /*
2201 * wl->vif can be null here if someone shuts down the interface
2202 * just when hardware recovery has been started.
2203 */
2204 if (wl->vif) {
2205 WARN_ON(wl->vif != vif);
536129c8 2206 __wl1271_op_remove_interface(wl, vif, true);
67353299 2207 }
52b0e7a6 2208
67353299 2209 mutex_unlock(&wl->mutex);
52b0e7a6 2210 cancel_work_sync(&wl->recovery_work);
f5fc0f86
LC		 2211}
2212
87fbcb0f
EP		 2213static int wl1271_join(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2214 bool set_assoc)
82429d32
JO		 2215{
2216 int ret;
536129c8 2217 bool is_ibss = (wlvif->bss_type == BSS_TYPE_IBSS);
82429d32 2218
69e5434c
JO		 2219 /*
2220 * One of the side effects of the JOIN command is that is clears
2221 * WPA/WPA2 keys from the chipset. Performing a JOIN while associated
2222 * to a WPA/WPA2 access point will therefore kill the data-path.
8bf69aae
OBC		 2223 * Currently the only valid scenario for JOIN during association
2224 * is on roaming, in which case we will also be given new keys.
2225 * Keep the below message for now, unless it starts bothering
2226 * users who really like to roam a lot :)
69e5434c
JO		 2227 */
2228 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
2229 wl1271_info("JOIN while associated.");
2230
2231 if (set_assoc)
2232 set_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags);
2233
227e81e1 2234 if (is_ibss)
87fbcb0f 2235 ret = wl12xx_cmd_role_start_ibss(wl, wlvif);
227e81e1 2236 else
87fbcb0f 2237 ret = wl12xx_cmd_role_start_sta(wl, wlvif);
82429d32
JO		 2238 if (ret < 0)
2239 goto out;
2240
82429d32
JO		 2241 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
2242 goto out;
2243
2244 /*
2245 * The join command disable the keep-alive mode, shut down its process,
2246 * and also clear the template config, so we need to reset it all after
2247 * the join. The acx_aid starts the keep-alive process, and the order
2248 * of the commands below is relevant.
2249 */
0603d891 2250 ret = wl1271_acx_keep_alive_mode(wl, wlvif, true);
82429d32
JO		 2251 if (ret < 0)
2252 goto out;
2253
0603d891 2254 ret = wl1271_acx_aid(wl, wlvif, wlvif->aid);
82429d32
JO		 2255 if (ret < 0)
2256 goto out;
2257
d2d66c56 2258 ret = wl12xx_cmd_build_klv_null_data(wl, wlvif);
82429d32
JO		 2259 if (ret < 0)
2260 goto out;
2261
0603d891
EP		 2262 ret = wl1271_acx_keep_alive_config(wl, wlvif,
2263 CMD_TEMPL_KLV_IDX_NULL_DATA,
82429d32
JO		 2264 ACX_KEEP_ALIVE_TPL_VALID);
2265 if (ret < 0)
2266 goto out;
2267
2268out:
2269 return ret;
2270}
2271
0603d891 2272static int wl1271_unjoin(struct wl1271 *wl, struct wl12xx_vif *wlvif)
c7f43e45
LC		 2273{
2274 int ret;
2275
6d158ff3
SL		 2276 if (test_and_clear_bit(WL1271_FLAG_CS_PROGRESS, &wl->flags)) {
2277 wl12xx_cmd_stop_channel_switch(wl);
2278 ieee80211_chswitch_done(wl->vif, false);
2279 }
2280
c7f43e45 2281 /* to stop listening to a channel, we disconnect */
0603d891 2282 ret = wl12xx_cmd_role_stop_sta(wl, wlvif);
c7f43e45
LC		 2283 if (ret < 0)
2284 goto out;
2285
b992c682
OK		 2286 /* reset TX security counters on a clean disconnect */
2287 wl->tx_security_last_seq_lsb = 0;
2288 wl->tx_security_seq = 0;
2289
c7f43e45
LC		 2290out:
2291 return ret;
2292}
2293
87fbcb0f 2294static void wl1271_set_band_rate(struct wl1271 *wl, struct wl12xx_vif *wlvif)
ebba60c6 2295{
87fbcb0f 2296 wlvif->basic_rate_set = wl->bitrate_masks[wl->band];
30d0c8fd 2297 wlvif->rate_set = wlvif->basic_rate_set;
ebba60c6
JO		 2298}
2299
251c177f
EP		 2300static bool wl12xx_is_roc(struct wl1271 *wl)
2301{
2302 u8 role_id;
2303
2304 role_id = find_first_bit(wl->roc_map, WL12XX_MAX_ROLES);
2305 if (role_id >= WL12XX_MAX_ROLES)
2306 return false;
2307
2308 return true;
2309}
2310
87fbcb0f
EP		 2311static int wl1271_sta_handle_idle(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2312 bool idle)
0d58cbff
JO		 2313{
2314 int ret;
2315
2316 if (idle) {
251c177f
EP		 2317 /* no need to croc if we weren't busy (e.g. during boot) */
2318 if (wl12xx_is_roc(wl)) {
7edebf56 2319 ret = wl12xx_croc(wl, wlvif->dev_role_id);
251c177f
EP		 2320 if (ret < 0)
2321 goto out;
2322
7edebf56 2323 ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
0d58cbff
JO		 2324 if (ret < 0)
2325 goto out;
2326 }
30d0c8fd
EP		 2327 wlvif->rate_set =
2328 wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
2329 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
0d58cbff
JO		 2330 if (ret < 0)
2331 goto out;
2332 ret = wl1271_acx_keep_alive_config(
0603d891 2333 wl, wlvif, CMD_TEMPL_KLV_IDX_NULL_DATA,
0d58cbff
JO		 2334 ACX_KEEP_ALIVE_TPL_INVALID);
2335 if (ret < 0)
2336 goto out;
2337 set_bit(WL1271_FLAG_IDLE, &wl->flags);
2338 } else {
33c2c06c
LC		 2339 /* The current firmware only supports sched_scan in idle */
2340 if (wl->sched_scanning) {
2341 wl1271_scan_sched_scan_stop(wl);
2342 ieee80211_sched_scan_stopped(wl->hw);
2343 }
2344
7edebf56 2345 ret = wl12xx_cmd_role_start_dev(wl, wlvif);
251c177f
EP		 2346 if (ret < 0)
2347 goto out;
2348
7edebf56 2349 ret = wl12xx_roc(wl, wlvif->dev_role_id);
0d58cbff
JO		 2350 if (ret < 0)
2351 goto out;
2352 clear_bit(WL1271_FLAG_IDLE, &wl->flags);
2353 }
2354
2355out:
2356 return ret;
2357}
2358
f5fc0f86
LC		 2359static int wl1271_op_config(struct ieee80211_hw *hw, u32 changed)
2360{
2361 struct wl1271 *wl = hw->priv;
87fbcb0f
EP		 2362 struct ieee80211_vif *vif = wl->vif; /* TODO: reconfig all vifs */
2363 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
f5fc0f86
LC		 2364 struct ieee80211_conf *conf = &hw->conf;
2365 int channel, ret = 0;
bee0ffec 2366 bool is_ap;
f5fc0f86
LC		 2367
2368 channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
2369
bee0ffec
AN		 2370 wl1271_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d %s"
2371 " changed 0x%x",
f5fc0f86
LC		 2372 channel,
2373 conf->flags & IEEE80211_CONF_PS ? "on" : "off",
c7f43e45 2374 conf->power_level,
bee0ffec
AN		 2375 conf->flags & IEEE80211_CONF_IDLE ? "idle" : "in use",
2376 changed);
f5fc0f86 2377
781608c4
JO		 2378 /*
2379 * mac80211 will go to idle nearly immediately after transmitting some
2380 * frames, such as the deauth. To make sure those frames reach the air,
2381 * wait here until the TX queue is fully flushed.
2382 */
2383 if ((changed & IEEE80211_CONF_CHANGE_IDLE) &&
2384 (conf->flags & IEEE80211_CONF_IDLE))
2385 wl1271_tx_flush(wl);
2386
f5fc0f86
LC		 2387 mutex_lock(&wl->mutex);
2388
f8d9802f 2389 if (unlikely(wl->state == WL1271_STATE_OFF)) {
17e672d6
AN		 2390 /* we support configuring the channel and band while off */
2391 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL)) {
2392 wl->band = conf->channel->band;
2393 wl->channel = channel;
2394 }
2395
097f8821
AN		 2396 if ((changed & IEEE80211_CONF_CHANGE_POWER))
2397 wl->power_level = conf->power_level;
2398
2c10bb9c 2399 goto out;
f8d9802f 2400 }
8a5a37a6 2401
536129c8 2402 is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
bee0ffec 2403
a620865e 2404 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 2405 if (ret < 0)
2406 goto out;
2407
ebba60c6 2408 /* if the channel changes while joined, join again */
69e5434c
JO		 2409 if (changed & IEEE80211_CONF_CHANGE_CHANNEL &&
2410 ((wl->band != conf->channel->band) ||
2411 (wl->channel != channel))) {
c6930b07 2412 /* send all pending packets */
536129c8 2413 wl1271_tx_work_locked(wl, vif);
ebba60c6
JO		 2414 wl->band = conf->channel->band;
2415 wl->channel = channel;
2416
bee0ffec
AN		 2417 if (!is_ap) {
2418 /*
2419 * FIXME: the mac80211 should really provide a fixed
2420 * rate to use here. for now, just use the smallest
2421 * possible rate for the band as a fixed rate for
2422 * association frames and other control messages.
2423 */
2424 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
87fbcb0f 2425 wl1271_set_band_rate(wl, wlvif);
bee0ffec 2426
d2d66c56 2427 wlvif->basic_rate =
87fbcb0f
EP		 2428 wl1271_tx_min_rate_get(wl,
2429 wlvif->basic_rate_set);
30d0c8fd 2430 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
ebba60c6 2431 if (ret < 0)
bee0ffec 2432 wl1271_warning("rate policy for channel "
ebba60c6 2433 "failed %d", ret);
bee0ffec 2434
251c177f
EP		 2435 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags)) {
2436 if (wl12xx_is_roc(wl)) {
2437 /* roaming */
7edebf56
EP		 2438 ret = wl12xx_croc(wl,
2439 wlvif->dev_role_id);
251c177f
EP		 2440 if (ret < 0)
2441 goto out_sleep;
2442 }
87fbcb0f 2443 ret = wl1271_join(wl, wlvif, false);
bee0ffec
AN		 2444 if (ret < 0)
2445 wl1271_warning("cmd join on channel "
2446 "failed %d", ret);
251c177f
EP		 2447 } else {
2448 /*
2449 * change the ROC channel. do it only if we are
2450 * not idle. otherwise, CROC will be called
2451 * anyway.
2452 */
2453 if (wl12xx_is_roc(wl) &&
2454 !(conf->flags & IEEE80211_CONF_IDLE)) {
7edebf56
EP		 2455 ret = wl12xx_croc(wl,
2456 wlvif->dev_role_id);
251c177f
EP		 2457 if (ret < 0)
2458 goto out_sleep;
2459
7edebf56
EP		 2460 ret = wl12xx_roc(wl,
2461 wlvif->dev_role_id);
251c177f
EP		 2462 if (ret < 0)
2463 wl1271_warning("roc failed %d",
2464 ret);
2465 }
bee0ffec 2466 }
ebba60c6
JO		 2467 }
2468 }
2469
bee0ffec 2470 if (changed & IEEE80211_CONF_CHANGE_IDLE && !is_ap) {
87fbcb0f 2471 ret = wl1271_sta_handle_idle(wl, wlvif,
bee0ffec 2472 conf->flags & IEEE80211_CONF_IDLE);
0d58cbff
JO		 2473 if (ret < 0)
2474 wl1271_warning("idle mode change failed %d", ret);
f5fc0f86
LC		 2475 }
2476
90494a90
JO		 2477 /*
2478 * if mac80211 changes the PSM mode, make sure the mode is not
2479 * incorrectly changed after the pspoll failure active window.
2480 */
2481 if (changed & IEEE80211_CONF_CHANGE_PS)
2482 clear_bit(WL1271_FLAG_PSPOLL_FAILURE, &wl->flags);
2483
71449f8d
JO		 2484 if (conf->flags & IEEE80211_CONF_PS &&
2485 !test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) {
2486 set_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags);
f5fc0f86
LC		 2487
2488 /*
2489 * We enter PSM only if we're already associated.
2490 * If we're not, we'll enter it when joining an SSID,
2491 * through the bss_info_changed() hook.
2492 */
830fb67b 2493 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags)) {
18f8d468 2494 wl1271_debug(DEBUG_PSM, "psm enabled");
0603d891
EP		 2495 ret = wl1271_ps_set_mode(wl, wlvif,
2496 STATION_POWER_SAVE_MODE,
d2d66c56 2497 wlvif->basic_rate, true);
af5e084b 2498 }
f5fc0f86 2499 } else if (!(conf->flags & IEEE80211_CONF_PS) &&
71449f8d 2500 test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) {
18f8d468 2501 wl1271_debug(DEBUG_PSM, "psm disabled");
f5fc0f86 2502
71449f8d 2503 clear_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags);
f5fc0f86 2504
71449f8d 2505 if (test_bit(WL1271_FLAG_PSM, &wl->flags))
0603d891
EP		 2506 ret = wl1271_ps_set_mode(wl, wlvif,
2507 STATION_ACTIVE_MODE,
d2d66c56 2508 wlvif->basic_rate, true);
f5fc0f86
LC		 2509 }
2510
2511 if (conf->power_level != wl->power_level) {
0603d891 2512 ret = wl1271_acx_tx_power(wl, wlvif, conf->power_level);
f5fc0f86 2513 if (ret < 0)
c6317a54 2514 goto out_sleep;
f5fc0f86
LC		 2515
2516 wl->power_level = conf->power_level;
2517 }
2518
2519out_sleep:
2520 wl1271_ps_elp_sleep(wl);
2521
2522out:
2523 mutex_unlock(&wl->mutex);
2524
2525 return ret;
2526}
2527
b54853f1
JO		 2528struct wl1271_filter_params {
2529 bool enabled;
2530 int mc_list_length;
2531 u8 mc_list[ACX_MC_ADDRESS_GROUP_MAX][ETH_ALEN];
2532};
2533
22bedad3
JP		 2534static u64 wl1271_op_prepare_multicast(struct ieee80211_hw *hw,
2535 struct netdev_hw_addr_list *mc_list)
c87dec9f 2536{
c87dec9f 2537 struct wl1271_filter_params *fp;
22bedad3 2538 struct netdev_hw_addr *ha;
2c10bb9c 2539 struct wl1271 *wl = hw->priv;
c87dec9f 2540
2c10bb9c
SD		 2541 if (unlikely(wl->state == WL1271_STATE_OFF))
2542 return 0;
c87dec9f 2543
74441130 2544 fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
c87dec9f
JO		 2545 if (!fp) {
2546 wl1271_error("Out of memory setting filters.");
2547 return 0;
2548 }
2549
2550 /* update multicast filtering parameters */
c87dec9f 2551 fp->mc_list_length = 0;
22bedad3
JP		 2552 if (netdev_hw_addr_list_count(mc_list) > ACX_MC_ADDRESS_GROUP_MAX) {
2553 fp->enabled = false;
2554 } else {
2555 fp->enabled = true;
2556 netdev_hw_addr_list_for_each(ha, mc_list) {
c87dec9f 2557 memcpy(fp->mc_list[fp->mc_list_length],
22bedad3 2558 ha->addr, ETH_ALEN);
c87dec9f 2559 fp->mc_list_length++;
22bedad3 2560 }
c87dec9f
JO		 2561 }
2562
b54853f1 2563 return (u64)(unsigned long)fp;
c87dec9f 2564}
f5fc0f86 2565
b54853f1
JO		 2566#define WL1271_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
2567 FIF_ALLMULTI | \
2568 FIF_FCSFAIL | \
2569 FIF_BCN_PRBRESP_PROMISC | \
2570 FIF_CONTROL | \
2571 FIF_OTHER_BSS)
2572
f5fc0f86
LC		 2573static void wl1271_op_configure_filter(struct ieee80211_hw *hw,
2574 unsigned int changed,
c87dec9f 2575 unsigned int *total, u64 multicast)
f5fc0f86 2576{
b54853f1 2577 struct wl1271_filter_params *fp = (void *)(unsigned long)multicast;
f5fc0f86 2578 struct wl1271 *wl = hw->priv;
536129c8
EP		 2579 struct ieee80211_vif *vif = wl->vif; /* TODO: get as param */
2580 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
2581
b54853f1 2582 int ret;
f5fc0f86 2583
7d057869
AN		 2584 wl1271_debug(DEBUG_MAC80211, "mac80211 configure filter changed %x"
2585 " total %x", changed, *total);
f5fc0f86 2586
b54853f1
JO		 2587 mutex_lock(&wl->mutex);
2588
2c10bb9c
SD		 2589 *total &= WL1271_SUPPORTED_FILTERS;
2590 changed &= WL1271_SUPPORTED_FILTERS;
2591
2592 if (unlikely(wl->state == WL1271_STATE_OFF))
b54853f1
JO		 2593 goto out;
2594
a620865e 2595 ret = wl1271_ps_elp_wakeup(wl);
b54853f1
JO		 2596 if (ret < 0)
2597 goto out;
2598
536129c8 2599 if (wlvif->bss_type != BSS_TYPE_AP_BSS) {
7d057869 2600 if (*total & FIF_ALLMULTI)
0603d891
EP		 2601 ret = wl1271_acx_group_address_tbl(wl, wlvif, false,
2602 NULL, 0);
7d057869 2603 else if (fp)
0603d891
EP		 2604 ret = wl1271_acx_group_address_tbl(wl, wlvif,
2605 fp->enabled,
7d057869
AN		 2606 fp->mc_list,
2607 fp->mc_list_length);
2608 if (ret < 0)
2609 goto out_sleep;
2610 }
f5fc0f86 2611
08c1d1c7
EP		 2612 /*
2613 * the fw doesn't provide an api to configure the filters. instead,
2614 * the filters configuration is based on the active roles / ROC
2615 * state.
2616 */
b54853f1
JO		 2617
2618out_sleep:
2619 wl1271_ps_elp_sleep(wl);
2620
2621out:
2622 mutex_unlock(&wl->mutex);
14b228a0 2623 kfree(fp);
f5fc0f86
LC		 2624}
2625
170d0e67
EP		 2626static int wl1271_record_ap_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2627 u8 id, u8 key_type, u8 key_size,
2628 const u8 *key, u8 hlid, u32 tx_seq_32,
2629 u16 tx_seq_16)
7f179b46
AN		 2630{
2631 struct wl1271_ap_key *ap_key;
2632 int i;
2633
2634 wl1271_debug(DEBUG_CRYPT, "record ap key id %d", (int)id);
2635
2636 if (key_size > MAX_KEY_SIZE)
2637 return -EINVAL;
2638
2639 /*
2640 * Find next free entry in ap_keys. Also check we are not replacing
2641 * an existing key.
2642 */
2643 for (i = 0; i < MAX_NUM_KEYS; i++) {
170d0e67 2644 if (wlvif->ap.recorded_keys[i] == NULL)
7f179b46
AN		 2645 break;
2646
170d0e67 2647 if (wlvif->ap.recorded_keys[i]->id == id) {
7f179b46
AN		 2648 wl1271_warning("trying to record key replacement");
2649 return -EINVAL;
2650 }
2651 }
2652
2653 if (i == MAX_NUM_KEYS)
2654 return -EBUSY;
2655
2656 ap_key = kzalloc(sizeof(*ap_key), GFP_KERNEL);
2657 if (!ap_key)
2658 return -ENOMEM;
2659
2660 ap_key->id = id;
2661 ap_key->key_type = key_type;
2662 ap_key->key_size = key_size;
2663 memcpy(ap_key->key, key, key_size);
2664 ap_key->hlid = hlid;
2665 ap_key->tx_seq_32 = tx_seq_32;
2666 ap_key->tx_seq_16 = tx_seq_16;
2667
170d0e67 2668 wlvif->ap.recorded_keys[i] = ap_key;
7f179b46
AN		 2669 return 0;
2670}
2671
170d0e67 2672static void wl1271_free_ap_keys(struct wl1271 *wl, struct wl12xx_vif *wlvif)
7f179b46
AN		 2673{
2674 int i;
2675
2676 for (i = 0; i < MAX_NUM_KEYS; i++) {
170d0e67
EP		 2677 kfree(wlvif->ap.recorded_keys[i]);
2678 wlvif->ap.recorded_keys[i] = NULL;
7f179b46
AN		 2679 }
2680}
2681
a8ab39a4 2682static int wl1271_ap_init_hwenc(struct wl1271 *wl, struct wl12xx_vif *wlvif)
7f179b46
AN		 2683{
2684 int i, ret = 0;
2685 struct wl1271_ap_key *key;
2686 bool wep_key_added = false;
2687
2688 for (i = 0; i < MAX_NUM_KEYS; i++) {
7f97b487 2689 u8 hlid;
170d0e67 2690 if (wlvif->ap.recorded_keys[i] == NULL)
7f179b46
AN		 2691 break;
2692
170d0e67 2693 key = wlvif->ap.recorded_keys[i];
7f97b487
EP		 2694 hlid = key->hlid;
2695 if (hlid == WL12XX_INVALID_LINK_ID)
a8ab39a4 2696 hlid = wlvif->ap.bcast_hlid;
7f97b487 2697
a8ab39a4 2698 ret = wl1271_cmd_set_ap_key(wl, wlvif, KEY_ADD_OR_REPLACE,
7f179b46
AN		 2699 key->id, key->key_type,
2700 key->key_size, key->key,
7f97b487 2701 hlid, key->tx_seq_32,
7f179b46
AN		 2702 key->tx_seq_16);
2703 if (ret < 0)
2704 goto out;
2705
2706 if (key->key_type == KEY_WEP)
2707 wep_key_added = true;
2708 }
2709
2710 if (wep_key_added) {
f75c753f 2711 ret = wl12xx_cmd_set_default_wep_key(wl, wlvif->default_key,
a8ab39a4 2712 wlvif->ap.bcast_hlid);
7f179b46
AN		 2713 if (ret < 0)
2714 goto out;
2715 }
2716
2717out:
170d0e67 2718 wl1271_free_ap_keys(wl, wlvif);
7f179b46
AN		 2719 return ret;
2720}
2721
536129c8
EP		 2722static int wl1271_set_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2723 u16 action, u8 id, u8 key_type,
7f179b46
AN		 2724 u8 key_size, const u8 *key, u32 tx_seq_32,
2725 u16 tx_seq_16, struct ieee80211_sta *sta)
2726{
2727 int ret;
536129c8 2728 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
7f179b46
AN		 2729
2730 if (is_ap) {
2731 struct wl1271_station *wl_sta;
2732 u8 hlid;
2733
2734 if (sta) {
2735 wl_sta = (struct wl1271_station *)sta->drv_priv;
2736 hlid = wl_sta->hlid;
2737 } else {
a8ab39a4 2738 hlid = wlvif->ap.bcast_hlid;
7f179b46
AN		 2739 }
2740
2741 if (!test_bit(WL1271_FLAG_AP_STARTED, &wl->flags)) {
2742 /*
2743 * We do not support removing keys after AP shutdown.
2744 * Pretend we do to make mac80211 happy.
2745 */
2746 if (action != KEY_ADD_OR_REPLACE)
2747 return 0;
2748
170d0e67 2749 ret = wl1271_record_ap_key(wl, wlvif, id,
7f179b46
AN		 2750 key_type, key_size,
2751 key, hlid, tx_seq_32,
2752 tx_seq_16);
2753 } else {
a8ab39a4 2754 ret = wl1271_cmd_set_ap_key(wl, wlvif, action,
7f179b46
AN		 2755 id, key_type, key_size,
2756 key, hlid, tx_seq_32,
2757 tx_seq_16);
2758 }
2759
2760 if (ret < 0)
2761 return ret;
2762 } else {
2763 const u8 *addr;
2764 static const u8 bcast_addr[ETH_ALEN] = {
2765 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
2766 };
2767
e9eb8cbe
GE		 2768 /*
2769 * A STA set to GEM cipher requires 2 tx spare blocks.
2770 * Return to default value when GEM cipher key is removed
2771 */
2772 if (key_type == KEY_GEM) {
2773 if (action == KEY_ADD_OR_REPLACE)
2774 wl->tx_spare_blocks = 2;
2775 else if (action == KEY_REMOVE)
2776 wl->tx_spare_blocks = TX_HW_BLOCK_SPARE_DEFAULT;
2777 }
2778
7f179b46
AN		 2779 addr = sta ? sta->addr : bcast_addr;
2780
2781 if (is_zero_ether_addr(addr)) {
2782 /* We dont support TX only encryption */
2783 return -EOPNOTSUPP;
2784 }
2785
2786 /* The wl1271 does not allow to remove unicast keys - they
2787 will be cleared automatically on next CMD_JOIN. Ignore the
2788 request silently, as we dont want the mac80211 to emit
2789 an error message. */
2790 if (action == KEY_REMOVE && !is_broadcast_ether_addr(addr))
2791 return 0;
2792
010d3d30
EP		 2793 /* don't remove key if hlid was already deleted */
2794 if (action == KEY_REMOVE &&
154da67c 2795 wlvif->sta.hlid == WL12XX_INVALID_LINK_ID)
010d3d30
EP		 2796 return 0;
2797
a8ab39a4 2798 ret = wl1271_cmd_set_sta_key(wl, wlvif, action,
7f179b46
AN		 2799 id, key_type, key_size,
2800 key, addr, tx_seq_32,
2801 tx_seq_16);
2802 if (ret < 0)
2803 return ret;
2804
2805 /* the default WEP key needs to be configured at least once */
2806 if (key_type == KEY_WEP) {
c690ec81 2807 ret = wl12xx_cmd_set_default_wep_key(wl,
f75c753f
EP		 2808 wlvif->default_key,
2809 wlvif->sta.hlid);
7f179b46
AN		 2810 if (ret < 0)
2811 return ret;
2812 }
2813 }
2814
2815 return 0;
2816}
2817
f5fc0f86
LC		 2818static int wl1271_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
2819 struct ieee80211_vif *vif,
2820 struct ieee80211_sta *sta,
2821 struct ieee80211_key_conf *key_conf)
2822{
2823 struct wl1271 *wl = hw->priv;
536129c8 2824 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
f5fc0f86 2825 int ret;
ac4e4ce5
JO		 2826 u32 tx_seq_32 = 0;
2827 u16 tx_seq_16 = 0;
f5fc0f86
LC		 2828 u8 key_type;
2829
f5fc0f86
LC		 2830 wl1271_debug(DEBUG_MAC80211, "mac80211 set key");
2831
7f179b46 2832 wl1271_debug(DEBUG_CRYPT, "CMD: 0x%x sta: %p", cmd, sta);
f5fc0f86 2833 wl1271_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x",
97359d12 2834 key_conf->cipher, key_conf->keyidx,
f5fc0f86
LC		 2835 key_conf->keylen, key_conf->flags);
2836 wl1271_dump(DEBUG_CRYPT, "KEY: ", key_conf->key, key_conf->keylen);
2837
f5fc0f86
LC		 2838 mutex_lock(&wl->mutex);
2839
f8d9802f
JO		 2840 if (unlikely(wl->state == WL1271_STATE_OFF)) {
2841 ret = -EAGAIN;
2842 goto out_unlock;
2843 }
2844
a620865e 2845 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 2846 if (ret < 0)
2847 goto out_unlock;
2848
97359d12
JB		 2849 switch (key_conf->cipher) {
2850 case WLAN_CIPHER_SUITE_WEP40:
2851 case WLAN_CIPHER_SUITE_WEP104:
f5fc0f86
LC		 2852 key_type = KEY_WEP;
2853
2854 key_conf->hw_key_idx = key_conf->keyidx;
2855 break;
97359d12 2856 case WLAN_CIPHER_SUITE_TKIP:
f5fc0f86
LC		 2857 key_type = KEY_TKIP;
2858
2859 key_conf->hw_key_idx = key_conf->keyidx;
04e36fc5
JO		 2860 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
2861 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
f5fc0f86 2862 break;
97359d12 2863 case WLAN_CIPHER_SUITE_CCMP:
f5fc0f86
LC		 2864 key_type = KEY_AES;
2865
2866 key_conf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
04e36fc5
JO		 2867 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
2868 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
f5fc0f86 2869 break;
7a55724e
JO		 2870 case WL1271_CIPHER_SUITE_GEM:
2871 key_type = KEY_GEM;
2872 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
2873 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
2874 break;
f5fc0f86 2875 default:
97359d12 2876 wl1271_error("Unknown key algo 0x%x", key_conf->cipher);
f5fc0f86
LC		 2877
2878 ret = -EOPNOTSUPP;
2879 goto out_sleep;
2880 }
2881
2882 switch (cmd) {
2883 case SET_KEY:
536129c8 2884 ret = wl1271_set_key(wl, wlvif, KEY_ADD_OR_REPLACE,
7f179b46
AN		 2885 key_conf->keyidx, key_type,
2886 key_conf->keylen, key_conf->key,
2887 tx_seq_32, tx_seq_16, sta);
f5fc0f86
LC		 2888 if (ret < 0) {
2889 wl1271_error("Could not add or replace key");
2890 goto out_sleep;
2891 }
2892 break;
2893
2894 case DISABLE_KEY:
536129c8 2895 ret = wl1271_set_key(wl, wlvif, KEY_REMOVE,
7f179b46
AN		 2896 key_conf->keyidx, key_type,
2897 key_conf->keylen, key_conf->key,
2898 0, 0, sta);
f5fc0f86
LC		 2899 if (ret < 0) {
2900 wl1271_error("Could not remove key");
2901 goto out_sleep;
2902 }
2903 break;
2904
2905 default:
2906 wl1271_error("Unsupported key cmd 0x%x", cmd);
2907 ret = -EOPNOTSUPP;
f5fc0f86
LC		 2908 break;
2909 }
2910
2911out_sleep:
2912 wl1271_ps_elp_sleep(wl);
2913
2914out_unlock:
2915 mutex_unlock(&wl->mutex);
2916
f5fc0f86
LC		 2917 return ret;
2918}
2919
2920static int wl1271_op_hw_scan(struct ieee80211_hw *hw,
a060bbfe 2921 struct ieee80211_vif *vif,
f5fc0f86
LC		 2922 struct cfg80211_scan_request *req)
2923{
2924 struct wl1271 *wl = hw->priv;
7edebf56
EP		 2925 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
2926
f5fc0f86
LC		 2927 int ret;
2928 u8 *ssid = NULL;
abb0b3bf 2929 size_t len = 0;
f5fc0f86
LC		 2930
2931 wl1271_debug(DEBUG_MAC80211, "mac80211 hw scan");
2932
2933 if (req->n_ssids) {
2934 ssid = req->ssids[0].ssid;
abb0b3bf 2935 len = req->ssids[0].ssid_len;
f5fc0f86
LC		 2936 }
2937
2938 mutex_lock(&wl->mutex);
2939
b739a42c
JO		 2940 if (wl->state == WL1271_STATE_OFF) {
2941 /*
2942 * We cannot return -EBUSY here because cfg80211 will expect
2943 * a call to ieee80211_scan_completed if we do - in this case
2944 * there won't be any call.
2945 */
2946 ret = -EAGAIN;
2947 goto out;
2948 }
2949
a620865e 2950 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 2951 if (ret < 0)
2952 goto out;
2953
251c177f
EP		 2954 /* cancel ROC before scanning */
2955 if (wl12xx_is_roc(wl)) {
2956 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags)) {
2957 /* don't allow scanning right now */
2958 ret = -EBUSY;
2959 goto out_sleep;
2960 }
7edebf56
EP		 2961 wl12xx_croc(wl, wlvif->dev_role_id);
2962 wl12xx_cmd_role_stop_dev(wl, wlvif);
251c177f 2963 }
f5fc0f86 2964
784f694d 2965 ret = wl1271_scan(hw->priv, vif, ssid, len, req);
251c177f 2966out_sleep:
f5fc0f86 2967 wl1271_ps_elp_sleep(wl);
f5fc0f86
LC		 2968out:
2969 mutex_unlock(&wl->mutex);
2970
2971 return ret;
2972}
2973
73ecce31
EP		 2974static void wl1271_op_cancel_hw_scan(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, "mac80211 cancel hw scan");
2981
2982 mutex_lock(&wl->mutex);
2983
2984 if (wl->state == WL1271_STATE_OFF)
2985 goto out;
2986
2987 if (wl->scan.state == WL1271_SCAN_STATE_IDLE)
2988 goto out;
2989
2990 ret = wl1271_ps_elp_wakeup(wl);
2991 if (ret < 0)
2992 goto out;
2993
2994 if (wl->scan.state != WL1271_SCAN_STATE_DONE) {
2995 ret = wl1271_scan_stop(wl);
2996 if (ret < 0)
2997 goto out_sleep;
2998 }
2999 wl->scan.state = WL1271_SCAN_STATE_IDLE;
3000 memset(wl->scan.scanned_ch, 0, sizeof(wl->scan.scanned_ch));
784f694d 3001 wl->scan_vif = NULL;
73ecce31
EP		 3002 wl->scan.req = NULL;
3003 ieee80211_scan_completed(wl->hw, true);
3004
3005out_sleep:
3006 wl1271_ps_elp_sleep(wl);
3007out:
3008 mutex_unlock(&wl->mutex);
3009
3010 cancel_delayed_work_sync(&wl->scan_complete_work);
3011}
3012
33c2c06c
LC		 3013static int wl1271_op_sched_scan_start(struct ieee80211_hw *hw,
3014 struct ieee80211_vif *vif,
3015 struct cfg80211_sched_scan_request *req,
3016 struct ieee80211_sched_scan_ies *ies)
3017{
3018 struct wl1271 *wl = hw->priv;
536129c8 3019 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
33c2c06c
LC		 3020 int ret;
3021
3022 wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_start");
3023
3024 mutex_lock(&wl->mutex);
3025
3026 ret = wl1271_ps_elp_wakeup(wl);
3027 if (ret < 0)
3028 goto out;
3029
536129c8 3030 ret = wl1271_scan_sched_scan_config(wl, wlvif, req, ies);
33c2c06c
LC		 3031 if (ret < 0)
3032 goto out_sleep;
3033
536129c8 3034 ret = wl1271_scan_sched_scan_start(wl, wlvif);
33c2c06c
LC		 3035 if (ret < 0)
3036 goto out_sleep;
3037
3038 wl->sched_scanning = true;
3039
3040out_sleep:
3041 wl1271_ps_elp_sleep(wl);
3042out:
3043 mutex_unlock(&wl->mutex);
3044 return ret;
3045}
3046
3047static void wl1271_op_sched_scan_stop(struct ieee80211_hw *hw,
3048 struct ieee80211_vif *vif)
3049{
3050 struct wl1271 *wl = hw->priv;
3051 int ret;
3052
3053 wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_stop");
3054
3055 mutex_lock(&wl->mutex);
3056
3057 ret = wl1271_ps_elp_wakeup(wl);
3058 if (ret < 0)
3059 goto out;
3060
3061 wl1271_scan_sched_scan_stop(wl);
3062
3063 wl1271_ps_elp_sleep(wl);
3064out:
3065 mutex_unlock(&wl->mutex);
3066}
3067
68d069c4
AN		 3068static int wl1271_op_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
3069{
3070 struct wl1271 *wl = hw->priv;
3071 int ret = 0;
3072
3073 mutex_lock(&wl->mutex);
3074
3075 if (unlikely(wl->state == WL1271_STATE_OFF)) {
3076 ret = -EAGAIN;
3077 goto out;
3078 }
3079
a620865e 3080 ret = wl1271_ps_elp_wakeup(wl);
68d069c4
AN		 3081 if (ret < 0)
3082 goto out;
3083
5f704d18 3084 ret = wl1271_acx_frag_threshold(wl, value);
68d069c4
AN		 3085 if (ret < 0)
3086 wl1271_warning("wl1271_op_set_frag_threshold failed: %d", ret);
3087
3088 wl1271_ps_elp_sleep(wl);
3089
3090out:
3091 mutex_unlock(&wl->mutex);
3092
3093 return ret;
3094}
3095
f5fc0f86
LC		 3096static int wl1271_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
3097{
3098 struct wl1271 *wl = hw->priv;
0603d891
EP		 3099 struct ieee80211_vif *vif = wl->vif;
3100 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
aecb0565 3101 int ret = 0;
f5fc0f86
LC		 3102
3103 mutex_lock(&wl->mutex);
3104
f8d9802f
JO		 3105 if (unlikely(wl->state == WL1271_STATE_OFF)) {
3106 ret = -EAGAIN;
aecb0565 3107 goto out;
f8d9802f 3108 }
aecb0565 3109
a620865e 3110 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 3111 if (ret < 0)
3112 goto out;
3113
0603d891 3114 ret = wl1271_acx_rts_threshold(wl, wlvif, value);
f5fc0f86
LC		 3115 if (ret < 0)
3116 wl1271_warning("wl1271_op_set_rts_threshold failed: %d", ret);
3117
3118 wl1271_ps_elp_sleep(wl);
3119
3120out:
3121 mutex_unlock(&wl->mutex);
3122
3123 return ret;
3124}
3125
1fe9f161 3126static int wl1271_ssid_set(struct ieee80211_vif *vif, struct sk_buff *skb,
2f6724b2 3127 int offset)
30240fc7 3128{
1fe9f161 3129 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
889cb360
EP		 3130 u8 ssid_len;
3131 const u8 *ptr = cfg80211_find_ie(WLAN_EID_SSID, skb->data + offset,
3132 skb->len - offset);
30240fc7 3133
889cb360
EP		 3134 if (!ptr) {
3135 wl1271_error("No SSID in IEs!");
3136 return -ENOENT;
3137 }
3138
3139 ssid_len = ptr[1];
3140 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
3141 wl1271_error("SSID is too long!");
3142 return -EINVAL;
30240fc7 3143 }
e78a287a 3144
1fe9f161
EP		 3145 wlvif->ssid_len = ssid_len;
3146 memcpy(wlvif->ssid, ptr+2, ssid_len);
889cb360 3147 return 0;
30240fc7
JO		 3148}
3149
d48055d9
EP		 3150static void wl12xx_remove_ie(struct sk_buff *skb, u8 eid, int ieoffset)
3151{
3152 int len;
3153 const u8 *next, *end = skb->data + skb->len;
3154 u8 *ie = (u8 *)cfg80211_find_ie(eid, skb->data + ieoffset,
3155 skb->len - ieoffset);
3156 if (!ie)
3157 return;
3158 len = ie[1] + 2;
3159 next = ie + len;
3160 memmove(ie, next, end - next);
3161 skb_trim(skb, skb->len - len);
3162}
3163
26b4bf2e
EP		 3164static void wl12xx_remove_vendor_ie(struct sk_buff *skb,
3165 unsigned int oui, u8 oui_type,
3166 int ieoffset)
3167{
3168 int len;
3169 const u8 *next, *end = skb->data + skb->len;
3170 u8 *ie = (u8 *)cfg80211_find_vendor_ie(oui, oui_type,
3171 skb->data + ieoffset,
3172 skb->len - ieoffset);
3173 if (!ie)
3174 return;
3175 len = ie[1] + 2;
3176 next = ie + len;
3177 memmove(ie, next, end - next);
3178 skb_trim(skb, skb->len - len);
3179}
3180
68eaaf6e 3181static int wl1271_ap_set_probe_resp_tmpl(struct wl1271 *wl,
1fe9f161 3182 struct ieee80211_vif *vif,
68eaaf6e
AN		 3183 u8 *probe_rsp_data,
3184 size_t probe_rsp_len,
3185 u32 rates)
3186{
1fe9f161
EP		 3187 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3188 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
68eaaf6e
AN		 3189 u8 probe_rsp_templ[WL1271_CMD_TEMPL_MAX_SIZE];
3190 int ssid_ie_offset, ie_offset, templ_len;
3191 const u8 *ptr;
3192
3193 /* no need to change probe response if the SSID is set correctly */
1fe9f161 3194 if (wlvif->ssid_len > 0)
68eaaf6e
AN		 3195 return wl1271_cmd_template_set(wl,
3196 CMD_TEMPL_AP_PROBE_RESPONSE,
3197 probe_rsp_data,
3198 probe_rsp_len, 0,
3199 rates);
3200
3201 if (probe_rsp_len + bss_conf->ssid_len > WL1271_CMD_TEMPL_MAX_SIZE) {
3202 wl1271_error("probe_rsp template too big");
3203 return -EINVAL;
3204 }
3205
3206 /* start searching from IE offset */
3207 ie_offset = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
3208
3209 ptr = cfg80211_find_ie(WLAN_EID_SSID, probe_rsp_data + ie_offset,
3210 probe_rsp_len - ie_offset);
3211 if (!ptr) {
3212 wl1271_error("No SSID in beacon!");
3213 return -EINVAL;
3214 }
3215
3216 ssid_ie_offset = ptr - probe_rsp_data;
3217 ptr += (ptr[1] + 2);
3218
3219 memcpy(probe_rsp_templ, probe_rsp_data, ssid_ie_offset);
3220
3221 /* insert SSID from bss_conf */
3222 probe_rsp_templ[ssid_ie_offset] = WLAN_EID_SSID;
3223 probe_rsp_templ[ssid_ie_offset + 1] = bss_conf->ssid_len;
3224 memcpy(probe_rsp_templ + ssid_ie_offset + 2,
3225 bss_conf->ssid, bss_conf->ssid_len);
3226 templ_len = ssid_ie_offset + 2 + bss_conf->ssid_len;
3227
3228 memcpy(probe_rsp_templ + ssid_ie_offset + 2 + bss_conf->ssid_len,
3229 ptr, probe_rsp_len - (ptr - probe_rsp_data));
3230 templ_len += probe_rsp_len - (ptr - probe_rsp_data);
3231
3232 return wl1271_cmd_template_set(wl,
3233 CMD_TEMPL_AP_PROBE_RESPONSE,
3234 probe_rsp_templ,
3235 templ_len, 0,
3236 rates);
3237}
3238
e78a287a 3239static int wl1271_bss_erp_info_changed(struct wl1271 *wl,
0603d891 3240 struct ieee80211_vif *vif,
f5fc0f86
LC		 3241 struct ieee80211_bss_conf *bss_conf,
3242 u32 changed)
3243{
0603d891 3244 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
e78a287a 3245 int ret = 0;
f5fc0f86 3246
e78a287a
AN		 3247 if (changed & BSS_CHANGED_ERP_SLOT) {
3248 if (bss_conf->use_short_slot)
0603d891 3249 ret = wl1271_acx_slot(wl, wlvif, SLOT_TIME_SHORT);
e78a287a 3250 else
0603d891 3251 ret = wl1271_acx_slot(wl, wlvif, SLOT_TIME_LONG);
e78a287a
AN		 3252 if (ret < 0) {
3253 wl1271_warning("Set slot time failed %d", ret);
3254 goto out;
3255 }
3256 }
f5fc0f86 3257
e78a287a
AN		 3258 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
3259 if (bss_conf->use_short_preamble)
0603d891 3260 wl1271_acx_set_preamble(wl, wlvif, ACX_PREAMBLE_SHORT);
e78a287a 3261 else
0603d891 3262 wl1271_acx_set_preamble(wl, wlvif, ACX_PREAMBLE_LONG);
e78a287a 3263 }
f5fc0f86 3264
e78a287a
AN		 3265 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
3266 if (bss_conf->use_cts_prot)
0603d891
EP		 3267 ret = wl1271_acx_cts_protect(wl, wlvif,
3268 CTSPROTECT_ENABLE);
e78a287a 3269 else
0603d891
EP		 3270 ret = wl1271_acx_cts_protect(wl, wlvif,
3271 CTSPROTECT_DISABLE);
e78a287a
AN		 3272 if (ret < 0) {
3273 wl1271_warning("Set ctsprotect failed %d", ret);
3274 goto out;
3275 }
3276 }
f8d9802f 3277
e78a287a
AN		 3278out:
3279 return ret;
3280}
f5fc0f86 3281
e78a287a
AN		 3282static int wl1271_bss_beacon_info_changed(struct wl1271 *wl,
3283 struct ieee80211_vif *vif,
3284 struct ieee80211_bss_conf *bss_conf,
3285 u32 changed)
3286{
87fbcb0f 3287 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
536129c8 3288 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
e78a287a
AN		 3289 int ret = 0;
3290
3291 if ((changed & BSS_CHANGED_BEACON_INT)) {
3292 wl1271_debug(DEBUG_MASTER, "beacon interval updated: %d",
60e84c2e
JO		 3293 bss_conf->beacon_int);
3294
6a899796 3295 wlvif->beacon_int = bss_conf->beacon_int;
60e84c2e
JO		 3296 }
3297
e78a287a
AN		 3298 if ((changed & BSS_CHANGED_BEACON)) {
3299 struct ieee80211_hdr *hdr;
af7fbb28 3300 u32 min_rate;
e78a287a
AN		 3301 int ieoffset = offsetof(struct ieee80211_mgmt,
3302 u.beacon.variable);
3303 struct sk_buff *beacon = ieee80211_beacon_get(wl->hw, vif);
3304 u16 tmpl_id;
3305
3306 if (!beacon)
3307 goto out;
3308
3309 wl1271_debug(DEBUG_MASTER, "beacon updated");
3310
1fe9f161 3311 ret = wl1271_ssid_set(vif, beacon, ieoffset);
e78a287a
AN		 3312 if (ret < 0) {
3313 dev_kfree_skb(beacon);
3314 goto out;
3315 }
87fbcb0f 3316 min_rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
e78a287a
AN		 3317 tmpl_id = is_ap ? CMD_TEMPL_AP_BEACON :
3318 CMD_TEMPL_BEACON;
3319 ret = wl1271_cmd_template_set(wl, tmpl_id,
3320 beacon->data,
3321 beacon->len, 0,
af7fbb28 3322 min_rate);
e78a287a
AN		 3323 if (ret < 0) {
3324 dev_kfree_skb(beacon);
3325 goto out;
3326 }
3327
d48055d9
EP		 3328 /* remove TIM ie from probe response */
3329 wl12xx_remove_ie(beacon, WLAN_EID_TIM, ieoffset);
3330
26b4bf2e
EP		 3331 /*
3332 * remove p2p ie from probe response.
3333 * the fw reponds to probe requests that don't include
3334 * the p2p ie. probe requests with p2p ie will be passed,
3335 * and will be responded by the supplicant (the spec
3336 * forbids including the p2p ie when responding to probe
3337 * requests that didn't include it).
3338 */
3339 wl12xx_remove_vendor_ie(beacon, WLAN_OUI_WFA,
3340 WLAN_OUI_TYPE_WFA_P2P, ieoffset);
3341
e78a287a
AN		 3342 hdr = (struct ieee80211_hdr *) beacon->data;
3343 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3344 IEEE80211_STYPE_PROBE_RESP);
68eaaf6e 3345 if (is_ap)
1fe9f161 3346 ret = wl1271_ap_set_probe_resp_tmpl(wl, vif,
68eaaf6e
AN		 3347 beacon->data,
3348 beacon->len,
af7fbb28 3349 min_rate);
68eaaf6e
AN		 3350 else
3351 ret = wl1271_cmd_template_set(wl,
3352 CMD_TEMPL_PROBE_RESPONSE,
3353 beacon->data,
3354 beacon->len, 0,
af7fbb28 3355 min_rate);
e78a287a
AN		 3356 dev_kfree_skb(beacon);
3357 if (ret < 0)
3358 goto out;
3359 }
3360
3361out:
3362 return ret;
3363}
3364
3365/* AP mode changes */
3366static void wl1271_bss_info_changed_ap(struct wl1271 *wl,
3367 struct ieee80211_vif *vif,
3368 struct ieee80211_bss_conf *bss_conf,
3369 u32 changed)
3370{
87fbcb0f 3371 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
e78a287a 3372 int ret = 0;
e0d8bbf0 3373
e78a287a
AN		 3374 if ((changed & BSS_CHANGED_BASIC_RATES)) {
3375 u32 rates = bss_conf->basic_rates;
5da11dcd 3376
87fbcb0f 3377 wlvif->basic_rate_set = wl1271_tx_enabled_rates_get(wl, rates,
af7fbb28 3378 wl->band);
d2d66c56 3379 wlvif->basic_rate = wl1271_tx_min_rate_get(wl,
87fbcb0f 3380 wlvif->basic_rate_set);
70f47424 3381
87fbcb0f 3382 ret = wl1271_init_ap_rates(wl, wlvif);
e78a287a 3383 if (ret < 0) {
70f47424 3384 wl1271_error("AP rate policy change failed %d", ret);
e78a287a
AN		 3385 goto out;
3386 }
c45a85b5 3387
784f694d 3388 ret = wl1271_ap_init_templates(wl, vif);
c45a85b5
AN		 3389 if (ret < 0)
3390 goto out;
e78a287a 3391 }
2f6724b2 3392
e78a287a
AN		 3393 ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf, changed);
3394 if (ret < 0)
3395 goto out;
30240fc7 3396
e78a287a
AN		 3397 if ((changed & BSS_CHANGED_BEACON_ENABLED)) {
3398 if (bss_conf->enable_beacon) {
3399 if (!test_bit(WL1271_FLAG_AP_STARTED, &wl->flags)) {
87fbcb0f 3400 ret = wl12xx_cmd_role_start_ap(wl, wlvif);
e78a287a
AN		 3401 if (ret < 0)
3402 goto out;
e0d8bbf0 3403
a8ab39a4 3404 ret = wl1271_ap_init_hwenc(wl, wlvif);
7f179b46
AN		 3405 if (ret < 0)
3406 goto out;
cf42039f
AN		 3407
3408 set_bit(WL1271_FLAG_AP_STARTED, &wl->flags);
3409 wl1271_debug(DEBUG_AP, "started AP");
e0d8bbf0 3410 }
e78a287a
AN		 3411 } else {
3412 if (test_bit(WL1271_FLAG_AP_STARTED, &wl->flags)) {
0603d891 3413 ret = wl12xx_cmd_role_stop_ap(wl, wlvif);
e78a287a
AN		 3414 if (ret < 0)
3415 goto out;
e0d8bbf0 3416
e78a287a
AN		 3417 clear_bit(WL1271_FLAG_AP_STARTED, &wl->flags);
3418 wl1271_debug(DEBUG_AP, "stopped AP");
3419 }
3420 }
3421 }
e0d8bbf0 3422
0603d891 3423 ret = wl1271_bss_erp_info_changed(wl, vif, bss_conf, changed);
e78a287a
AN		 3424 if (ret < 0)
3425 goto out;
0b932ab9
AN		 3426
3427 /* Handle HT information change */
3428 if ((changed & BSS_CHANGED_HT) &&
3429 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
0603d891 3430 ret = wl1271_acx_set_ht_information(wl, wlvif,
0b932ab9
AN		 3431 bss_conf->ht_operation_mode);
3432 if (ret < 0) {
3433 wl1271_warning("Set ht information failed %d", ret);
3434 goto out;
3435 }
3436 }
3437
e78a287a
AN		 3438out:
3439 return;
3440}
8bf29b0e 3441
e78a287a
AN		 3442/* STA/IBSS mode changes */
3443static void wl1271_bss_info_changed_sta(struct wl1271 *wl,
3444 struct ieee80211_vif *vif,
3445 struct ieee80211_bss_conf *bss_conf,
3446 u32 changed)
3447{
87fbcb0f 3448 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
e78a287a 3449 bool do_join = false, set_assoc = false;
536129c8 3450 bool is_ibss = (wlvif->bss_type == BSS_TYPE_IBSS);
227e81e1 3451 bool ibss_joined = false;
72c2d9e5 3452 u32 sta_rate_set = 0;
e78a287a 3453 int ret;
2d6e4e76 3454 struct ieee80211_sta *sta;
a100885d
AN		 3455 bool sta_exists = false;
3456 struct ieee80211_sta_ht_cap sta_ht_cap;
e78a287a
AN		 3457
3458 if (is_ibss) {
3459 ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf,
3460 changed);
3461 if (ret < 0)
3462 goto out;
e0d8bbf0
JO		 3463 }
3464
227e81e1
EP		 3465 if (changed & BSS_CHANGED_IBSS) {
3466 if (bss_conf->ibss_joined) {
3467 set_bit(WL1271_FLAG_IBSS_JOINED, &wl->flags);
3468 ibss_joined = true;
3469 } else {
3470 if (test_and_clear_bit(WL1271_FLAG_IBSS_JOINED,
3471 &wl->flags)) {
0603d891 3472 wl1271_unjoin(wl, wlvif);
7edebf56
EP		 3473 wl12xx_cmd_role_start_dev(wl, wlvif);
3474 wl12xx_roc(wl, wlvif->dev_role_id);
227e81e1
EP		 3475 }
3476 }
3477 }
3478
3479 if ((changed & BSS_CHANGED_BEACON_INT) && ibss_joined)
e78a287a
AN		 3480 do_join = true;
3481
3482 /* Need to update the SSID (for filtering etc) */
227e81e1 3483 if ((changed & BSS_CHANGED_BEACON) && ibss_joined)
e78a287a
AN		 3484 do_join = true;
3485
227e81e1 3486 if ((changed & BSS_CHANGED_BEACON_ENABLED) && ibss_joined) {
5da11dcd
JO		 3487 wl1271_debug(DEBUG_ADHOC, "ad-hoc beaconing: %s",
3488 bss_conf->enable_beacon ? "enabled" : "disabled");
3489
5da11dcd
JO		 3490 do_join = true;
3491 }
3492
e78a287a 3493 if ((changed & BSS_CHANGED_CQM)) {
00236aed
JO		 3494 bool enable = false;
3495 if (bss_conf->cqm_rssi_thold)
3496 enable = true;
0603d891 3497 ret = wl1271_acx_rssi_snr_trigger(wl, wlvif, enable,
00236aed
JO		 3498 bss_conf->cqm_rssi_thold,
3499 bss_conf->cqm_rssi_hyst);
3500 if (ret < 0)
3501 goto out;
04324d99 3502 wlvif->rssi_thold = bss_conf->cqm_rssi_thold;
00236aed
JO		 3503 }
3504
cdf09495
EP		 3505 if (changed & BSS_CHANGED_BSSID)
3506 if (!is_zero_ether_addr(bss_conf->bssid)) {
d2d66c56 3507 ret = wl12xx_cmd_build_null_data(wl, wlvif);
fa287b8f
EP		 3508 if (ret < 0)
3509 goto out;
30240fc7 3510
784f694d 3511 ret = wl1271_build_qos_null_data(wl, vif);
fa287b8f
EP		 3512 if (ret < 0)
3513 goto out;
30240fc7 3514
fa287b8f
EP		 3515 /* Need to update the BSSID (for filtering etc) */
3516 do_join = true;
3517 }
30240fc7 3518
0f9c8250
AN		 3519 if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_HT)) {
3520 rcu_read_lock();
3521 sta = ieee80211_find_sta(vif, bss_conf->bssid);
3522 if (!sta)
3523 goto sta_not_found;
3524
72c2d9e5
EP		 3525 /* save the supp_rates of the ap */
3526 sta_rate_set = sta->supp_rates[wl->hw->conf.channel->band];
3527 if (sta->ht_cap.ht_supported)
3528 sta_rate_set |=
3529 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET);
a100885d
AN		 3530 sta_ht_cap = sta->ht_cap;
3531 sta_exists = true;
72c2d9e5 3532
0f9c8250
AN		 3533sta_not_found:
3534 rcu_read_unlock();
72c2d9e5 3535 }
72c2d9e5 3536
e78a287a 3537 if ((changed & BSS_CHANGED_ASSOC)) {
f5fc0f86 3538 if (bss_conf->assoc) {
ebba60c6 3539 u32 rates;
2f6724b2 3540 int ieoffset;
6840e37a 3541 wlvif->aid = bss_conf->aid;
69e5434c 3542 set_assoc = true;
f5fc0f86 3543
74ec8395 3544 wlvif->ps_poll_failures = 0;
90494a90 3545
ebba60c6
JO		 3546 /*
3547 * use basic rates from AP, and determine lowest rate
3548 * to use with control frames.
3549 */
3550 rates = bss_conf->basic_rates;
87fbcb0f 3551 wlvif->basic_rate_set =
af7fbb28
EP		 3552 wl1271_tx_enabled_rates_get(wl, rates,
3553 wl->band);
d2d66c56 3554 wlvif->basic_rate =
87fbcb0f
EP		 3555 wl1271_tx_min_rate_get(wl,
3556 wlvif->basic_rate_set);
72c2d9e5 3557 if (sta_rate_set)
30d0c8fd
EP		 3558 wlvif->rate_set =
3559 wl1271_tx_enabled_rates_get(wl,
af7fbb28
EP		 3560 sta_rate_set,
3561 wl->band);
30d0c8fd 3562 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
ebba60c6 3563 if (ret < 0)
e78a287a 3564 goto out;
ebba60c6 3565
ae751bab
LC		 3566 /*
3567 * with wl1271, we don't need to update the
3568 * beacon_int and dtim_period, because the firmware
3569 * updates it by itself when the first beacon is
3570 * received after a join.
3571 */
6840e37a 3572 ret = wl1271_cmd_build_ps_poll(wl, wlvif, wlvif->aid);
f5fc0f86 3573 if (ret < 0)
e78a287a 3574 goto out;
f5fc0f86 3575
c2b2d99b 3576 /*
2f6724b2 3577 * Get a template for hardware connection maintenance
c2b2d99b 3578 */
bddb29b8
EP		 3579 dev_kfree_skb(wlvif->probereq);
3580 wlvif->probereq = wl1271_cmd_build_ap_probe_req(wl,
3581 NULL);
2f6724b2
JO		 3582 ieoffset = offsetof(struct ieee80211_mgmt,
3583 u.probe_req.variable);
bddb29b8 3584 wl1271_ssid_set(vif, wlvif->probereq, ieoffset);
c2b2d99b 3585
6ccbb92e 3586 /* enable the connection monitoring feature */
0603d891 3587 ret = wl1271_acx_conn_monit_params(wl, wlvif, true);
f5fc0f86 3588 if (ret < 0)
e78a287a 3589 goto out;
d94cd297
JO		 3590 } else {
3591 /* use defaults when not associated */
30df14d0
EP		 3592 bool was_assoc =
3593 !!test_and_clear_bit(WL1271_FLAG_STA_ASSOCIATED,
3594 &wl->flags);
251c177f
EP		 3595 bool was_ifup =
3596 !!test_and_clear_bit(WL1271_FLAG_STA_STATE_SENT,
3597 &wl->flags);
6840e37a 3598 wlvif->aid = 0;
6ccbb92e 3599
2f6724b2 3600 /* free probe-request template */
bddb29b8
EP		 3601 dev_kfree_skb(wlvif->probereq);
3602 wlvif->probereq = NULL;
2f6724b2 3603
8d2ef7bd 3604 /* re-enable dynamic ps - just in case */
f532be6d 3605 ieee80211_enable_dyn_ps(wl->vif);
8d2ef7bd 3606
ebba60c6 3607 /* revert back to minimum rates for the current band */
87fbcb0f 3608 wl1271_set_band_rate(wl, wlvif);
d2d66c56 3609 wlvif->basic_rate =
87fbcb0f
EP		 3610 wl1271_tx_min_rate_get(wl,
3611 wlvif->basic_rate_set);
30d0c8fd 3612 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
ebba60c6 3613 if (ret < 0)
e78a287a 3614 goto out;
ebba60c6 3615
6ccbb92e 3616 /* disable connection monitor features */
0603d891 3617 ret = wl1271_acx_conn_monit_params(wl, wlvif, false);
c1899554
JO		 3618
3619 /* Disable the keep-alive feature */
0603d891 3620 ret = wl1271_acx_keep_alive_mode(wl, wlvif, false);
6ccbb92e 3621 if (ret < 0)
e78a287a 3622 goto out;
b84a7d3d
JO		 3623
3624 /* restore the bssid filter and go to dummy bssid */
30df14d0 3625 if (was_assoc) {
251c177f
EP		 3626 u32 conf_flags = wl->hw->conf.flags;
3627 /*
3628 * we might have to disable roc, if there was
3629 * no IF_OPER_UP notification.
3630 */
3631 if (!was_ifup) {
0603d891 3632 ret = wl12xx_croc(wl, wlvif->role_id);
251c177f
EP		 3633 if (ret < 0)
3634 goto out;
3635 }
3636 /*
3637 * (we also need to disable roc in case of
3638 * roaming on the same channel. until we will
3639 * have a better flow...)
3640 */
7edebf56
EP		 3641 if (test_bit(wlvif->dev_role_id, wl->roc_map)) {
3642 ret = wl12xx_croc(wl,
3643 wlvif->dev_role_id);
251c177f
EP		 3644 if (ret < 0)
3645 goto out;
3646 }
3647
0603d891 3648 wl1271_unjoin(wl, wlvif);
251c177f 3649 if (!(conf_flags & IEEE80211_CONF_IDLE)) {
7edebf56
EP		 3650 wl12xx_cmd_role_start_dev(wl, wlvif);
3651 wl12xx_roc(wl, wlvif->dev_role_id);
251c177f 3652 }
30df14d0 3653 }
f5fc0f86 3654 }
f5fc0f86
LC		 3655 }
3656
d192d268
EP		 3657 if (changed & BSS_CHANGED_IBSS) {
3658 wl1271_debug(DEBUG_ADHOC, "ibss_joined: %d",
3659 bss_conf->ibss_joined);
3660
3661 if (bss_conf->ibss_joined) {
3662 u32 rates = bss_conf->basic_rates;
87fbcb0f 3663 wlvif->basic_rate_set =
af7fbb28
EP		 3664 wl1271_tx_enabled_rates_get(wl, rates,
3665 wl->band);
d2d66c56 3666 wlvif->basic_rate =
87fbcb0f
EP		 3667 wl1271_tx_min_rate_get(wl,
3668 wlvif->basic_rate_set);
d192d268 3669
06b660e1 3670 /* by default, use 11b + OFDM rates */
30d0c8fd
EP		 3671 wlvif->rate_set = CONF_TX_IBSS_DEFAULT_RATES;
3672 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
d192d268
EP		 3673 if (ret < 0)
3674 goto out;
3675 }
3676 }
3677
0603d891 3678 ret = wl1271_bss_erp_info_changed(wl, vif, bss_conf, changed);
e78a287a
AN		 3679 if (ret < 0)
3680 goto out;
f5fc0f86 3681
ca52a5eb
JO		 3682 if (changed & BSS_CHANGED_ARP_FILTER) {
3683 __be32 addr = bss_conf->arp_addr_list[0];
536129c8 3684 WARN_ON(wlvif->bss_type != BSS_TYPE_STA_BSS);
ca52a5eb 3685
c5312772
EP		 3686 if (bss_conf->arp_addr_cnt == 1 &&
3687 bss_conf->arp_filter_enabled) {
3688 /*
3689 * The template should have been configured only upon
3690 * association. however, it seems that the correct ip
3691 * isn't being set (when sending), so we have to
3692 * reconfigure the template upon every ip change.
3693 */
d2d66c56 3694 ret = wl1271_cmd_build_arp_rsp(wl, wlvif, addr);
c5312772
EP		 3695 if (ret < 0) {
3696 wl1271_warning("build arp rsp failed: %d", ret);
e78a287a 3697 goto out;
c5312772
EP		 3698 }
3699
0603d891 3700 ret = wl1271_acx_arp_ip_filter(wl, wlvif,
e5e2f24b 3701 ACX_ARP_FILTER_ARP_FILTERING,
c5312772
EP		 3702 addr);
3703 } else
0603d891 3704 ret = wl1271_acx_arp_ip_filter(wl, wlvif, 0, addr);
ca52a5eb
JO		 3705
3706 if (ret < 0)
e78a287a 3707 goto out;
ca52a5eb
JO		 3708 }
3709
8bf29b0e 3710 if (do_join) {
87fbcb0f 3711 ret = wl1271_join(wl, wlvif, set_assoc);
8bf29b0e
JO		 3712 if (ret < 0) {
3713 wl1271_warning("cmd join failed %d", ret);
e78a287a 3714 goto out;
8bf29b0e 3715 }
251c177f
EP		 3716
3717 /* ROC until connected (after EAPOL exchange) */
3718 if (!is_ibss) {
0603d891 3719 ret = wl12xx_roc(wl, wlvif->role_id);
251c177f
EP		 3720 if (ret < 0)
3721 goto out;
3722
3723 wl1271_check_operstate(wl,
3724 ieee80211_get_operstate(vif));
3725 }
3726 /*
3727 * stop device role if started (we might already be in
3728 * STA role). TODO: make it better.
3729 */
7edebf56
EP		 3730 if (wlvif->dev_role_id != WL12XX_INVALID_ROLE_ID) {
3731 ret = wl12xx_croc(wl, wlvif->dev_role_id);
251c177f
EP		 3732 if (ret < 0)
3733 goto out;
3734
7edebf56 3735 ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
251c177f
EP		 3736 if (ret < 0)
3737 goto out;
3738 }
05dba355
EP		 3739
3740 /* If we want to go in PSM but we're not there yet */
3741 if (test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags) &&
3742 !test_bit(WL1271_FLAG_PSM, &wl->flags)) {
3743 enum wl1271_cmd_ps_mode mode;
3744
3745 mode = STATION_POWER_SAVE_MODE;
0603d891 3746 ret = wl1271_ps_set_mode(wl, wlvif, mode,
d2d66c56 3747 wlvif->basic_rate,
05dba355
EP		 3748 true);
3749 if (ret < 0)
3750 goto out;
3751 }
c1899554
JO		 3752 }
3753
0b932ab9 3754 /* Handle new association with HT. Do this after join. */
0f9c8250
AN		 3755 if (sta_exists) {
3756 if ((changed & BSS_CHANGED_HT) &&
3757 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
0b932ab9
AN		 3758 ret = wl1271_acx_set_ht_capabilities(wl,
3759 &sta_ht_cap,
3760 true,
154da67c 3761 wlvif->sta.hlid);
0f9c8250
AN		 3762 if (ret < 0) {
3763 wl1271_warning("Set ht cap true failed %d",
3764 ret);
3765 goto out;
3766 }
3767 }
3768 /* handle new association without HT and disassociation */
3769 else if (changed & BSS_CHANGED_ASSOC) {
0b932ab9
AN		 3770 ret = wl1271_acx_set_ht_capabilities(wl,
3771 &sta_ht_cap,
3772 false,
154da67c 3773 wlvif->sta.hlid);
0f9c8250
AN		 3774 if (ret < 0) {
3775 wl1271_warning("Set ht cap false failed %d",
3776 ret);
3777 goto out;
3778 }
3779 }
3780 }
3781
0b932ab9
AN		 3782 /* Handle HT information change. Done after join. */
3783 if ((changed & BSS_CHANGED_HT) &&
0f9c8250 3784 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
0603d891 3785 ret = wl1271_acx_set_ht_information(wl, wlvif,
0f9c8250
AN		 3786 bss_conf->ht_operation_mode);
3787 if (ret < 0) {
3788 wl1271_warning("Set ht information failed %d", ret);
3789 goto out;
3790 }
3791 }
3792
e78a287a
AN		 3793out:
3794 return;
3795}
3796
3797static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
3798 struct ieee80211_vif *vif,
3799 struct ieee80211_bss_conf *bss_conf,
3800 u32 changed)
3801{
3802 struct wl1271 *wl = hw->priv;
536129c8
EP		 3803 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3804 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
e78a287a
AN		 3805 int ret;
3806
3807 wl1271_debug(DEBUG_MAC80211, "mac80211 bss info changed 0x%x",
3808 (int)changed);
3809
3810 mutex_lock(&wl->mutex);
3811
3812 if (unlikely(wl->state == WL1271_STATE_OFF))
3813 goto out;
3814
a620865e 3815 ret = wl1271_ps_elp_wakeup(wl);
e78a287a
AN		 3816 if (ret < 0)
3817 goto out;
3818
3819 if (is_ap)
3820 wl1271_bss_info_changed_ap(wl, vif, bss_conf, changed);
3821 else
3822 wl1271_bss_info_changed_sta(wl, vif, bss_conf, changed);
3823
f5fc0f86
LC		 3824 wl1271_ps_elp_sleep(wl);
3825
3826out:
3827 mutex_unlock(&wl->mutex);
3828}
3829
8a3a3c85
EP		 3830static int wl1271_op_conf_tx(struct ieee80211_hw *hw,
3831 struct ieee80211_vif *vif, u16 queue,
c6999d83
KV		 3832 const struct ieee80211_tx_queue_params *params)
3833{
3834 struct wl1271 *wl = hw->priv;
0603d891 3835 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4695dc91 3836 u8 ps_scheme;
488fc540 3837 int ret = 0;
c6999d83
KV		 3838
3839 mutex_lock(&wl->mutex);
3840
3841 wl1271_debug(DEBUG_MAC80211, "mac80211 conf tx %d", queue);
3842
4695dc91
KV		 3843 if (params->uapsd)
3844 ps_scheme = CONF_PS_SCHEME_UPSD_TRIGGER;
3845 else
3846 ps_scheme = CONF_PS_SCHEME_LEGACY;
3847
488fc540
AN		 3848 if (wl->state == WL1271_STATE_OFF) {
3849 /*
3850 * If the state is off, the parameters will be recorded and
3851 * configured on init. This happens in AP-mode.
3852 */
3853 struct conf_tx_ac_category *conf_ac =
3854 &wl->conf.tx.ac_conf[wl1271_tx_get_queue(queue)];
3855 struct conf_tx_tid *conf_tid =
3856 &wl->conf.tx.tid_conf[wl1271_tx_get_queue(queue)];
3857
3858 conf_ac->ac = wl1271_tx_get_queue(queue);
3859 conf_ac->cw_min = (u8)params->cw_min;
3860 conf_ac->cw_max = params->cw_max;
3861 conf_ac->aifsn = params->aifs;
3862 conf_ac->tx_op_limit = params->txop << 5;
3863
3864 conf_tid->queue_id = wl1271_tx_get_queue(queue);
3865 conf_tid->channel_type = CONF_CHANNEL_TYPE_EDCF;
3866 conf_tid->tsid = wl1271_tx_get_queue(queue);
3867 conf_tid->ps_scheme = ps_scheme;
3868 conf_tid->ack_policy = CONF_ACK_POLICY_LEGACY;
3869 conf_tid->apsd_conf[0] = 0;
3870 conf_tid->apsd_conf[1] = 0;
c1b193eb
EP		 3871 goto out;
3872 }
488fc540 3873
c1b193eb
EP		 3874 ret = wl1271_ps_elp_wakeup(wl);
3875 if (ret < 0)
3876 goto out;
488fc540 3877
c1b193eb
EP		 3878 /*
3879 * the txop is confed in units of 32us by the mac80211,
3880 * we need us
3881 */
0603d891 3882 ret = wl1271_acx_ac_cfg(wl, wlvif, wl1271_tx_get_queue(queue),
c1b193eb
EP		 3883 params->cw_min, params->cw_max,
3884 params->aifs, params->txop << 5);
3885 if (ret < 0)
3886 goto out_sleep;
3887
0603d891 3888 ret = wl1271_acx_tid_cfg(wl, wlvif, wl1271_tx_get_queue(queue),
c1b193eb
EP		 3889 CONF_CHANNEL_TYPE_EDCF,
3890 wl1271_tx_get_queue(queue),
3891 ps_scheme, CONF_ACK_POLICY_LEGACY,
3892 0, 0);
c82c1dde
KV		 3893
3894out_sleep:
c1b193eb 3895 wl1271_ps_elp_sleep(wl);
c6999d83
KV		 3896
3897out:
3898 mutex_unlock(&wl->mutex);
3899
3900 return ret;
3901}
3902
37a41b4a
EP		 3903static u64 wl1271_op_get_tsf(struct ieee80211_hw *hw,
3904 struct ieee80211_vif *vif)
bbbb538e
JO		 3905{
3906
3907 struct wl1271 *wl = hw->priv;
3908 u64 mactime = ULLONG_MAX;
3909 int ret;
3910
3911 wl1271_debug(DEBUG_MAC80211, "mac80211 get tsf");
3912
3913 mutex_lock(&wl->mutex);
3914
f8d9802f
JO		 3915 if (unlikely(wl->state == WL1271_STATE_OFF))
3916 goto out;
3917
a620865e 3918 ret = wl1271_ps_elp_wakeup(wl);
bbbb538e
JO		 3919 if (ret < 0)
3920 goto out;
3921
3922 ret = wl1271_acx_tsf_info(wl, &mactime);
3923 if (ret < 0)
3924 goto out_sleep;
3925
3926out_sleep:
3927 wl1271_ps_elp_sleep(wl);
3928
3929out:
3930 mutex_unlock(&wl->mutex);
3931 return mactime;
3932}
f5fc0f86 3933
ece550d0
JL		 3934static int wl1271_op_get_survey(struct ieee80211_hw *hw, int idx,
3935 struct survey_info *survey)
3936{
3937 struct wl1271 *wl = hw->priv;
3938 struct ieee80211_conf *conf = &hw->conf;
b739a42c 3939
ece550d0
JL		 3940 if (idx != 0)
3941 return -ENOENT;
b739a42c 3942
ece550d0
JL		 3943 survey->channel = conf->channel;
3944 survey->filled = SURVEY_INFO_NOISE_DBM;
3945 survey->noise = wl->noise;
b739a42c 3946
ece550d0
JL		 3947 return 0;
3948}
3949
409622ec 3950static int wl1271_allocate_sta(struct wl1271 *wl,
c7ffb902
EP		 3951 struct wl12xx_vif *wlvif,
3952 struct ieee80211_sta *sta)
f84f7d78
AN		 3953{
3954 struct wl1271_station *wl_sta;
c7ffb902 3955 int ret;
f84f7d78 3956
c7ffb902
EP		 3957
3958 if (wl->active_sta_count >= AP_MAX_STATIONS) {
f84f7d78
AN		 3959 wl1271_warning("could not allocate HLID - too much stations");
3960 return -EBUSY;
3961 }
3962
3963 wl_sta = (struct wl1271_station *)sta->drv_priv;
c7ffb902
EP		 3964 ret = wl12xx_allocate_link(wl, wlvif, &wl_sta->hlid);
3965 if (ret < 0) {
3966 wl1271_warning("could not allocate HLID - too many links");
3967 return -EBUSY;
3968 }
3969
3970 set_bit(wl_sta->hlid, wlvif->ap.sta_hlid_map);
b622d992 3971 memcpy(wl->links[wl_sta->hlid].addr, sta->addr, ETH_ALEN);
da03209e 3972 wl->active_sta_count++;
f84f7d78
AN		 3973 return 0;
3974}
3975
c7ffb902 3976void wl1271_free_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 hlid)
f84f7d78 3977{
c7ffb902 3978 if (!test_bit(hlid, wlvif->ap.sta_hlid_map))
f1acea9a
AN		 3979 return;
3980
c7ffb902 3981 clear_bit(hlid, wlvif->ap.sta_hlid_map);
b622d992 3982 memset(wl->links[hlid].addr, 0, ETH_ALEN);
0f9c8250 3983 wl->links[hlid].ba_bitmap = 0;
a8c0ddb5 3984 wl1271_tx_reset_link_queues(wl, hlid);
b622d992
AN		 3985 __clear_bit(hlid, &wl->ap_ps_map);
3986 __clear_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
c7ffb902 3987 wl12xx_free_link(wl, wlvif, &hlid);
da03209e 3988 wl->active_sta_count--;
f84f7d78
AN		 3989}
3990
3991static int wl1271_op_sta_add(struct ieee80211_hw *hw,
3992 struct ieee80211_vif *vif,
3993 struct ieee80211_sta *sta)
3994{
3995 struct wl1271 *wl = hw->priv;
536129c8 3996 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
c7ffb902 3997 struct wl1271_station *wl_sta;
f84f7d78
AN		 3998 int ret = 0;
3999 u8 hlid;
4000
4001 mutex_lock(&wl->mutex);
4002
4003 if (unlikely(wl->state == WL1271_STATE_OFF))
4004 goto out;
4005
536129c8 4006 if (wlvif->bss_type != BSS_TYPE_AP_BSS)
f84f7d78
AN		 4007 goto out;
4008
4009 wl1271_debug(DEBUG_MAC80211, "mac80211 add sta %d", (int)sta->aid);
4010
c7ffb902 4011 ret = wl1271_allocate_sta(wl, wlvif, sta);
f84f7d78
AN		 4012 if (ret < 0)
4013 goto out;
4014
c7ffb902
EP		 4015 wl_sta = (struct wl1271_station *)sta->drv_priv;
4016 hlid = wl_sta->hlid;
4017
a620865e 4018 ret = wl1271_ps_elp_wakeup(wl);
f84f7d78 4019 if (ret < 0)
409622ec 4020 goto out_free_sta;
f84f7d78 4021
c690ec81 4022 ret = wl12xx_cmd_add_peer(wl, sta, hlid);
f84f7d78
AN		 4023 if (ret < 0)
4024 goto out_sleep;
4025
b67476ef
EP		 4026 ret = wl12xx_cmd_set_peer_state(wl, hlid);
4027 if (ret < 0)
4028 goto out_sleep;
4029
0b932ab9
AN		 4030 ret = wl1271_acx_set_ht_capabilities(wl, &sta->ht_cap, true, hlid);
4031 if (ret < 0)
4032 goto out_sleep;
4033
f84f7d78
AN		 4034out_sleep:
4035 wl1271_ps_elp_sleep(wl);
4036
409622ec
AN		 4037out_free_sta:
4038 if (ret < 0)
c7ffb902 4039 wl1271_free_sta(wl, wlvif, hlid);
409622ec 4040
f84f7d78
AN		 4041out:
4042 mutex_unlock(&wl->mutex);
4043 return ret;
4044}
4045
4046static int wl1271_op_sta_remove(struct ieee80211_hw *hw,
4047 struct ieee80211_vif *vif,
4048 struct ieee80211_sta *sta)
4049{
4050 struct wl1271 *wl = hw->priv;
536129c8 4051 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
f84f7d78
AN		 4052 struct wl1271_station *wl_sta;
4053 int ret = 0, id;
4054
4055 mutex_lock(&wl->mutex);
4056
4057 if (unlikely(wl->state == WL1271_STATE_OFF))
4058 goto out;
4059
536129c8 4060 if (wlvif->bss_type != BSS_TYPE_AP_BSS)
f84f7d78
AN		 4061 goto out;
4062
4063 wl1271_debug(DEBUG_MAC80211, "mac80211 remove sta %d", (int)sta->aid);
4064
4065 wl_sta = (struct wl1271_station *)sta->drv_priv;
c7ffb902
EP		 4066 id = wl_sta->hlid;
4067 if (WARN_ON(!test_bit(id, wlvif->ap.sta_hlid_map)))
f84f7d78
AN		 4068 goto out;
4069
a620865e 4070 ret = wl1271_ps_elp_wakeup(wl);
f84f7d78
AN		 4071 if (ret < 0)
4072 goto out;
4073
c690ec81 4074 ret = wl12xx_cmd_remove_peer(wl, wl_sta->hlid);
f84f7d78
AN		 4075 if (ret < 0)
4076 goto out_sleep;
4077
c7ffb902 4078 wl1271_free_sta(wl, wlvif, wl_sta->hlid);
f84f7d78
AN		 4079
4080out_sleep:
4081 wl1271_ps_elp_sleep(wl);
4082
4083out:
4084 mutex_unlock(&wl->mutex);
4085 return ret;
4086}
4087
4623ec7d
LC		 4088static int wl1271_op_ampdu_action(struct ieee80211_hw *hw,
4089 struct ieee80211_vif *vif,
4090 enum ieee80211_ampdu_mlme_action action,
4091 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
4092 u8 buf_size)
bbba3e68
LS		 4093{
4094 struct wl1271 *wl = hw->priv;
536129c8 4095 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
bbba3e68 4096 int ret;
0f9c8250
AN		 4097 u8 hlid, *ba_bitmap;
4098
4099 wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu action %d tid %d", action,
4100 tid);
4101
4102 /* sanity check - the fields in FW are only 8bits wide */
4103 if (WARN_ON(tid > 0xFF))
4104 return -ENOTSUPP;
bbba3e68
LS		 4105
4106 mutex_lock(&wl->mutex);
4107
4108 if (unlikely(wl->state == WL1271_STATE_OFF)) {
4109 ret = -EAGAIN;
4110 goto out;
4111 }
4112
536129c8 4113 if (wlvif->bss_type == BSS_TYPE_STA_BSS) {
154da67c 4114 hlid = wlvif->sta.hlid;
d0802abd 4115 ba_bitmap = &wlvif->sta.ba_rx_bitmap;
536129c8 4116 } else if (wlvif->bss_type == BSS_TYPE_AP_BSS) {
0f9c8250
AN		 4117 struct wl1271_station *wl_sta;
4118
4119 wl_sta = (struct wl1271_station *)sta->drv_priv;
4120 hlid = wl_sta->hlid;
4121 ba_bitmap = &wl->links[hlid].ba_bitmap;
4122 } else {
4123 ret = -EINVAL;
4124 goto out;
4125 }
4126
a620865e 4127 ret = wl1271_ps_elp_wakeup(wl);
bbba3e68
LS		 4128 if (ret < 0)
4129 goto out;
4130
70559a06
SL		 4131 wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu: Rx tid %d action %d",
4132 tid, action);
4133
bbba3e68
LS		 4134 switch (action) {
4135 case IEEE80211_AMPDU_RX_START:
d0802abd 4136 if (!wlvif->ba_support || !wlvif->ba_allowed) {
bbba3e68 4137 ret = -ENOTSUPP;
0f9c8250
AN		 4138 break;
4139 }
4140
4141 if (wl->ba_rx_session_count >= RX_BA_MAX_SESSIONS) {
4142 ret = -EBUSY;
4143 wl1271_error("exceeded max RX BA sessions");
4144 break;
4145 }
4146
4147 if (*ba_bitmap & BIT(tid)) {
4148 ret = -EINVAL;
4149 wl1271_error("cannot enable RX BA session on active "
4150 "tid: %d", tid);
4151 break;
4152 }
4153
4154 ret = wl12xx_acx_set_ba_receiver_session(wl, tid, *ssn, true,
4155 hlid);
4156 if (!ret) {
4157 *ba_bitmap |= BIT(tid);
4158 wl->ba_rx_session_count++;
bbba3e68
LS		 4159 }
4160 break;
4161
4162 case IEEE80211_AMPDU_RX_STOP:
0f9c8250
AN		 4163 if (!(*ba_bitmap & BIT(tid))) {
4164 ret = -EINVAL;
4165 wl1271_error("no active RX BA session on tid: %d",
4166 tid);
4167 break;
4168 }
4169
4170 ret = wl12xx_acx_set_ba_receiver_session(wl, tid, 0, false,
4171 hlid);
4172 if (!ret) {
4173 *ba_bitmap &= ~BIT(tid);
4174 wl->ba_rx_session_count--;
4175 }
bbba3e68
LS		 4176 break;
4177
4178 /*
4179 * The BA initiator session management in FW independently.
4180 * Falling break here on purpose for all TX APDU commands.
4181 */
4182 case IEEE80211_AMPDU_TX_START:
4183 case IEEE80211_AMPDU_TX_STOP:
4184 case IEEE80211_AMPDU_TX_OPERATIONAL:
4185 ret = -EINVAL;
4186 break;
4187
4188 default:
4189 wl1271_error("Incorrect ampdu action id=%x\n", action);
4190 ret = -EINVAL;
4191 }
4192
4193 wl1271_ps_elp_sleep(wl);
4194
4195out:
4196 mutex_unlock(&wl->mutex);
4197
4198 return ret;
4199}
4200
af7fbb28
EP		 4201static int wl12xx_set_bitrate_mask(struct ieee80211_hw *hw,
4202 struct ieee80211_vif *vif,
4203 const struct cfg80211_bitrate_mask *mask)
4204{
4205 struct wl1271 *wl = hw->priv;
4206 int i;
4207
4208 wl1271_debug(DEBUG_MAC80211, "mac80211 set_bitrate_mask 0x%x 0x%x",
4209 mask->control[NL80211_BAND_2GHZ].legacy,
4210 mask->control[NL80211_BAND_5GHZ].legacy);
4211
4212 mutex_lock(&wl->mutex);
4213
4214 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4215 wl->bitrate_masks[i] =
4216 wl1271_tx_enabled_rates_get(wl,
4217 mask->control[i].legacy,
4218 i);
4219 mutex_unlock(&wl->mutex);
4220
4221 return 0;
4222}
4223
6d158ff3
SL		 4224static void wl12xx_op_channel_switch(struct ieee80211_hw *hw,
4225 struct ieee80211_channel_switch *ch_switch)
4226{
4227 struct wl1271 *wl = hw->priv;
4228 int ret;
4229
4230 wl1271_debug(DEBUG_MAC80211, "mac80211 channel switch");
4231
4232 mutex_lock(&wl->mutex);
4233
4234 if (unlikely(wl->state == WL1271_STATE_OFF)) {
4235 mutex_unlock(&wl->mutex);
4236 ieee80211_chswitch_done(wl->vif, false);
4237 return;
4238 }
4239
4240 ret = wl1271_ps_elp_wakeup(wl);
4241 if (ret < 0)
4242 goto out;
4243
4244 ret = wl12xx_cmd_channel_switch(wl, ch_switch);
4245
4246 if (!ret)
4247 set_bit(WL1271_FLAG_CS_PROGRESS, &wl->flags);
4248
4249 wl1271_ps_elp_sleep(wl);
4250
4251out:
4252 mutex_unlock(&wl->mutex);
4253}
4254
33437893
AN		 4255static bool wl1271_tx_frames_pending(struct ieee80211_hw *hw)
4256{
4257 struct wl1271 *wl = hw->priv;
4258 bool ret = false;
4259
4260 mutex_lock(&wl->mutex);
4261
4262 if (unlikely(wl->state == WL1271_STATE_OFF))
4263 goto out;
4264
4265 /* packets are considered pending if in the TX queue or the FW */
f1a46384 4266 ret = (wl1271_tx_total_queue_count(wl) > 0) || (wl->tx_frames_cnt > 0);
33437893
AN		 4267out:
4268 mutex_unlock(&wl->mutex);
4269
4270 return ret;
4271}
4272
f5fc0f86
LC		 4273/* can't be const, mac80211 writes to this */
4274static struct ieee80211_rate wl1271_rates[] = {
4275 { .bitrate = 10,
2b60100b
JO		 4276 .hw_value = CONF_HW_BIT_RATE_1MBPS,
4277 .hw_value_short = CONF_HW_BIT_RATE_1MBPS, },
f5fc0f86 4278 { .bitrate = 20,
2b60100b
JO		 4279 .hw_value = CONF_HW_BIT_RATE_2MBPS,
4280 .hw_value_short = CONF_HW_BIT_RATE_2MBPS,
f5fc0f86
LC		 4281 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4282 { .bitrate = 55,
2b60100b
JO		 4283 .hw_value = CONF_HW_BIT_RATE_5_5MBPS,
4284 .hw_value_short = CONF_HW_BIT_RATE_5_5MBPS,
f5fc0f86
LC		 4285 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4286 { .bitrate = 110,
2b60100b
JO		 4287 .hw_value = CONF_HW_BIT_RATE_11MBPS,
4288 .hw_value_short = CONF_HW_BIT_RATE_11MBPS,
f5fc0f86
LC		 4289 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4290 { .bitrate = 60,
2b60100b
JO		 4291 .hw_value = CONF_HW_BIT_RATE_6MBPS,
4292 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
f5fc0f86 4293 { .bitrate = 90,
2b60100b
JO		 4294 .hw_value = CONF_HW_BIT_RATE_9MBPS,
4295 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
f5fc0f86 4296 { .bitrate = 120,
2b60100b
JO		 4297 .hw_value = CONF_HW_BIT_RATE_12MBPS,
4298 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
f5fc0f86 4299 { .bitrate = 180,
2b60100b
JO		 4300 .hw_value = CONF_HW_BIT_RATE_18MBPS,
4301 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
f5fc0f86 4302 { .bitrate = 240,
2b60100b
JO		 4303 .hw_value = CONF_HW_BIT_RATE_24MBPS,
4304 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
f5fc0f86 4305 { .bitrate = 360,
2b60100b
JO		 4306 .hw_value = CONF_HW_BIT_RATE_36MBPS,
4307 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
f5fc0f86 4308 { .bitrate = 480,
2b60100b
JO		 4309 .hw_value = CONF_HW_BIT_RATE_48MBPS,
4310 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
f5fc0f86 4311 { .bitrate = 540,
2b60100b
JO		 4312 .hw_value = CONF_HW_BIT_RATE_54MBPS,
4313 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
f5fc0f86
LC		 4314};
4315
fa97f46b 4316/* can't be const, mac80211 writes to this */
f5fc0f86 4317static struct ieee80211_channel wl1271_channels[] = {
a2d0e3f1 4318 { .hw_value = 1, .center_freq = 2412, .max_power = 25 },
fa21c7a9 4319 { .hw_value = 2, .center_freq = 2417, .max_power = 25 },
fa97f46b
JO		 4320 { .hw_value = 3, .center_freq = 2422, .max_power = 25 },
4321 { .hw_value = 4, .center_freq = 2427, .max_power = 25 },
4322 { .hw_value = 5, .center_freq = 2432, .max_power = 25 },
fa21c7a9 4323 { .hw_value = 6, .center_freq = 2437, .max_power = 25 },
fa97f46b
JO		 4324 { .hw_value = 7, .center_freq = 2442, .max_power = 25 },
4325 { .hw_value = 8, .center_freq = 2447, .max_power = 25 },
4326 { .hw_value = 9, .center_freq = 2452, .max_power = 25 },
fa21c7a9 4327 { .hw_value = 10, .center_freq = 2457, .max_power = 25 },
fa97f46b
JO		 4328 { .hw_value = 11, .center_freq = 2462, .max_power = 25 },
4329 { .hw_value = 12, .center_freq = 2467, .max_power = 25 },
4330 { .hw_value = 13, .center_freq = 2472, .max_power = 25 },
6c89b7b2 4331 { .hw_value = 14, .center_freq = 2484, .max_power = 25 },
f5fc0f86
LC		 4332};
4333
f876bb9a 4334/* mapping to indexes for wl1271_rates */
a0ea9493 4335static const u8 wl1271_rate_to_idx_2ghz[] = {
f876bb9a 4336 /* MCS rates are used only with 11n */
18357850
SL		 4337 7, /* CONF_HW_RXTX_RATE_MCS7 */
4338 6, /* CONF_HW_RXTX_RATE_MCS6 */
4339 5, /* CONF_HW_RXTX_RATE_MCS5 */
4340 4, /* CONF_HW_RXTX_RATE_MCS4 */
4341 3, /* CONF_HW_RXTX_RATE_MCS3 */
4342 2, /* CONF_HW_RXTX_RATE_MCS2 */
4343 1, /* CONF_HW_RXTX_RATE_MCS1 */
4344 0, /* CONF_HW_RXTX_RATE_MCS0 */
f876bb9a
JO		 4345
4346 11, /* CONF_HW_RXTX_RATE_54 */
4347 10, /* CONF_HW_RXTX_RATE_48 */
4348 9, /* CONF_HW_RXTX_RATE_36 */
4349 8, /* CONF_HW_RXTX_RATE_24 */
4350
4351 /* TI-specific rate */
4352 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_22 */
4353
4354 7, /* CONF_HW_RXTX_RATE_18 */
4355 6, /* CONF_HW_RXTX_RATE_12 */
4356 3, /* CONF_HW_RXTX_RATE_11 */
4357 5, /* CONF_HW_RXTX_RATE_9 */
4358 4, /* CONF_HW_RXTX_RATE_6 */
4359 2, /* CONF_HW_RXTX_RATE_5_5 */
4360 1, /* CONF_HW_RXTX_RATE_2 */
4361 0 /* CONF_HW_RXTX_RATE_1 */
4362};
4363
e8b03a2b
SL		 4364/* 11n STA capabilities */
4365#define HW_RX_HIGHEST_RATE 72
4366
00d20100 4367#define WL12XX_HT_CAP { \
871d0c3b
SL		 4368 .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 | \
4369 (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT), \
e8b03a2b
SL		 4370 .ht_supported = true, \
4371 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K, \
4372 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_8, \
4373 .mcs = { \
4374 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, \
4375 .rx_highest = cpu_to_le16(HW_RX_HIGHEST_RATE), \
4376 .tx_params = IEEE80211_HT_MCS_TX_DEFINED, \
4377 }, \
4378}
4379
f5fc0f86
LC		 4380/* can't be const, mac80211 writes to this */
4381static struct ieee80211_supported_band wl1271_band_2ghz = {
4382 .channels = wl1271_channels,
4383 .n_channels = ARRAY_SIZE(wl1271_channels),
4384 .bitrates = wl1271_rates,
4385 .n_bitrates = ARRAY_SIZE(wl1271_rates),
00d20100 4386 .ht_cap = WL12XX_HT_CAP,
f5fc0f86
LC		 4387};
4388
1ebec3d7
TP		 4389/* 5 GHz data rates for WL1273 */
4390static struct ieee80211_rate wl1271_rates_5ghz[] = {
4391 { .bitrate = 60,
4392 .hw_value = CONF_HW_BIT_RATE_6MBPS,
4393 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
4394 { .bitrate = 90,
4395 .hw_value = CONF_HW_BIT_RATE_9MBPS,
4396 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
4397 { .bitrate = 120,
4398 .hw_value = CONF_HW_BIT_RATE_12MBPS,
4399 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
4400 { .bitrate = 180,
4401 .hw_value = CONF_HW_BIT_RATE_18MBPS,
4402 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
4403 { .bitrate = 240,
4404 .hw_value = CONF_HW_BIT_RATE_24MBPS,
4405 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
4406 { .bitrate = 360,
4407 .hw_value = CONF_HW_BIT_RATE_36MBPS,
4408 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
4409 { .bitrate = 480,
4410 .hw_value = CONF_HW_BIT_RATE_48MBPS,
4411 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
4412 { .bitrate = 540,
4413 .hw_value = CONF_HW_BIT_RATE_54MBPS,
4414 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
4415};
4416
fa97f46b 4417/* 5 GHz band channels for WL1273 */
1ebec3d7 4418static struct ieee80211_channel wl1271_channels_5ghz[] = {
6cfa5cff
AN		 4419 { .hw_value = 7, .center_freq = 5035, .max_power = 25 },
4420 { .hw_value = 8, .center_freq = 5040, .max_power = 25 },
4421 { .hw_value = 9, .center_freq = 5045, .max_power = 25 },
4422 { .hw_value = 11, .center_freq = 5055, .max_power = 25 },
4423 { .hw_value = 12, .center_freq = 5060, .max_power = 25 },
4424 { .hw_value = 16, .center_freq = 5080, .max_power = 25 },
4425 { .hw_value = 34, .center_freq = 5170, .max_power = 25 },
4426 { .hw_value = 36, .center_freq = 5180, .max_power = 25 },
4427 { .hw_value = 38, .center_freq = 5190, .max_power = 25 },
4428 { .hw_value = 40, .center_freq = 5200, .max_power = 25 },
4429 { .hw_value = 42, .center_freq = 5210, .max_power = 25 },
4430 { .hw_value = 44, .center_freq = 5220, .max_power = 25 },
4431 { .hw_value = 46, .center_freq = 5230, .max_power = 25 },
4432 { .hw_value = 48, .center_freq = 5240, .max_power = 25 },
4433 { .hw_value = 52, .center_freq = 5260, .max_power = 25 },
4434 { .hw_value = 56, .center_freq = 5280, .max_power = 25 },
4435 { .hw_value = 60, .center_freq = 5300, .max_power = 25 },
4436 { .hw_value = 64, .center_freq = 5320, .max_power = 25 },
4437 { .hw_value = 100, .center_freq = 5500, .max_power = 25 },
4438 { .hw_value = 104, .center_freq = 5520, .max_power = 25 },
4439 { .hw_value = 108, .center_freq = 5540, .max_power = 25 },
4440 { .hw_value = 112, .center_freq = 5560, .max_power = 25 },
4441 { .hw_value = 116, .center_freq = 5580, .max_power = 25 },
4442 { .hw_value = 120, .center_freq = 5600, .max_power = 25 },
4443 { .hw_value = 124, .center_freq = 5620, .max_power = 25 },
4444 { .hw_value = 128, .center_freq = 5640, .max_power = 25 },
4445 { .hw_value = 132, .center_freq = 5660, .max_power = 25 },
4446 { .hw_value = 136, .center_freq = 5680, .max_power = 25 },
4447 { .hw_value = 140, .center_freq = 5700, .max_power = 25 },
4448 { .hw_value = 149, .center_freq = 5745, .max_power = 25 },
4449 { .hw_value = 153, .center_freq = 5765, .max_power = 25 },
4450 { .hw_value = 157, .center_freq = 5785, .max_power = 25 },
4451 { .hw_value = 161, .center_freq = 5805, .max_power = 25 },
4452 { .hw_value = 165, .center_freq = 5825, .max_power = 25 },
1ebec3d7
TP		 4453};
4454
f876bb9a 4455/* mapping to indexes for wl1271_rates_5ghz */
a0ea9493 4456static const u8 wl1271_rate_to_idx_5ghz[] = {
f876bb9a 4457 /* MCS rates are used only with 11n */
18357850
SL		 4458 7, /* CONF_HW_RXTX_RATE_MCS7 */
4459 6, /* CONF_HW_RXTX_RATE_MCS6 */
4460 5, /* CONF_HW_RXTX_RATE_MCS5 */
4461 4, /* CONF_HW_RXTX_RATE_MCS4 */
4462 3, /* CONF_HW_RXTX_RATE_MCS3 */
4463 2, /* CONF_HW_RXTX_RATE_MCS2 */
4464 1, /* CONF_HW_RXTX_RATE_MCS1 */
4465 0, /* CONF_HW_RXTX_RATE_MCS0 */
f876bb9a
JO		 4466
4467 7, /* CONF_HW_RXTX_RATE_54 */
4468 6, /* CONF_HW_RXTX_RATE_48 */
4469 5, /* CONF_HW_RXTX_RATE_36 */
4470 4, /* CONF_HW_RXTX_RATE_24 */
4471
4472 /* TI-specific rate */
4473 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_22 */
4474
4475 3, /* CONF_HW_RXTX_RATE_18 */
4476 2, /* CONF_HW_RXTX_RATE_12 */
4477 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_11 */
4478 1, /* CONF_HW_RXTX_RATE_9 */
4479 0, /* CONF_HW_RXTX_RATE_6 */
4480 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_5_5 */
4481 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_2 */
4482 CONF_HW_RXTX_RATE_UNSUPPORTED /* CONF_HW_RXTX_RATE_1 */
4483};
1ebec3d7
TP		 4484
4485static struct ieee80211_supported_band wl1271_band_5ghz = {
4486 .channels = wl1271_channels_5ghz,
4487 .n_channels = ARRAY_SIZE(wl1271_channels_5ghz),
4488 .bitrates = wl1271_rates_5ghz,
4489 .n_bitrates = ARRAY_SIZE(wl1271_rates_5ghz),
00d20100 4490 .ht_cap = WL12XX_HT_CAP,
1ebec3d7
TP		 4491};
4492
a0ea9493 4493static const u8 *wl1271_band_rate_to_idx[] = {
f876bb9a
JO		 4494 [IEEE80211_BAND_2GHZ] = wl1271_rate_to_idx_2ghz,
4495 [IEEE80211_BAND_5GHZ] = wl1271_rate_to_idx_5ghz
4496};
4497
f5fc0f86
LC		 4498static const struct ieee80211_ops wl1271_ops = {
4499 .start = wl1271_op_start,
4500 .stop = wl1271_op_stop,
4501 .add_interface = wl1271_op_add_interface,
4502 .remove_interface = wl1271_op_remove_interface,
f634a4e7 4503#ifdef CONFIG_PM
402e4861
EP		 4504 .suspend = wl1271_op_suspend,
4505 .resume = wl1271_op_resume,
f634a4e7 4506#endif
f5fc0f86 4507 .config = wl1271_op_config,
c87dec9f 4508 .prepare_multicast = wl1271_op_prepare_multicast,
f5fc0f86
LC		 4509 .configure_filter = wl1271_op_configure_filter,
4510 .tx = wl1271_op_tx,
4511 .set_key = wl1271_op_set_key,
4512 .hw_scan = wl1271_op_hw_scan,
73ecce31 4513 .cancel_hw_scan = wl1271_op_cancel_hw_scan,
33c2c06c
LC		 4514 .sched_scan_start = wl1271_op_sched_scan_start,
4515 .sched_scan_stop = wl1271_op_sched_scan_stop,
f5fc0f86 4516 .bss_info_changed = wl1271_op_bss_info_changed,
68d069c4 4517 .set_frag_threshold = wl1271_op_set_frag_threshold,
f5fc0f86 4518 .set_rts_threshold = wl1271_op_set_rts_threshold,
c6999d83 4519 .conf_tx = wl1271_op_conf_tx,
bbbb538e 4520 .get_tsf = wl1271_op_get_tsf,
ece550d0 4521 .get_survey = wl1271_op_get_survey,
f84f7d78
AN		 4522 .sta_add = wl1271_op_sta_add,
4523 .sta_remove = wl1271_op_sta_remove,
bbba3e68 4524 .ampdu_action = wl1271_op_ampdu_action,
33437893 4525 .tx_frames_pending = wl1271_tx_frames_pending,
af7fbb28 4526 .set_bitrate_mask = wl12xx_set_bitrate_mask,
6d158ff3 4527 .channel_switch = wl12xx_op_channel_switch,
c8c90873 4528 CFG80211_TESTMODE_CMD(wl1271_tm_cmd)
f5fc0f86
LC		 4529};
4530
f876bb9a 4531
6a2de93b 4532u8 wl1271_rate_to_idx(int rate, enum ieee80211_band band)
f876bb9a
JO		 4533{
4534 u8 idx;
4535
6a2de93b 4536 BUG_ON(band >= sizeof(wl1271_band_rate_to_idx)/sizeof(u8 *));
f876bb9a
JO		 4537
4538 if (unlikely(rate >= CONF_HW_RXTX_RATE_MAX)) {
4539 wl1271_error("Illegal RX rate from HW: %d", rate);
4540 return 0;
4541 }
4542
6a2de93b 4543 idx = wl1271_band_rate_to_idx[band][rate];
f876bb9a
JO		 4544 if (unlikely(idx == CONF_HW_RXTX_RATE_UNSUPPORTED)) {
4545 wl1271_error("Unsupported RX rate from HW: %d", rate);
4546 return 0;
4547 }
4548
4549 return idx;
4550}
4551
7fc3a864
JO		 4552static ssize_t wl1271_sysfs_show_bt_coex_state(struct device *dev,
4553 struct device_attribute *attr,
4554 char *buf)
4555{
4556 struct wl1271 *wl = dev_get_drvdata(dev);
4557 ssize_t len;
4558
2f63b011 4559 len = PAGE_SIZE;
7fc3a864
JO		 4560
4561 mutex_lock(&wl->mutex);
4562 len = snprintf(buf, len, "%d\n\n0 - off\n1 - on\n",
4563 wl->sg_enabled);
4564 mutex_unlock(&wl->mutex);
4565
4566 return len;
4567
4568}
4569
4570static ssize_t wl1271_sysfs_store_bt_coex_state(struct device *dev,
4571 struct device_attribute *attr,
4572 const char *buf, size_t count)
4573{
4574 struct wl1271 *wl = dev_get_drvdata(dev);
4575 unsigned long res;
4576 int ret;
4577
6277ed65 4578 ret = kstrtoul(buf, 10, &res);
7fc3a864
JO		 4579 if (ret < 0) {
4580 wl1271_warning("incorrect value written to bt_coex_mode");
4581 return count;
4582 }
4583
4584 mutex_lock(&wl->mutex);
4585
4586 res = !!res;
4587
4588 if (res == wl->sg_enabled)
4589 goto out;
4590
4591 wl->sg_enabled = res;
4592
4593 if (wl->state == WL1271_STATE_OFF)
4594 goto out;
4595
a620865e 4596 ret = wl1271_ps_elp_wakeup(wl);
7fc3a864
JO		 4597 if (ret < 0)
4598 goto out;
4599
4600 wl1271_acx_sg_enable(wl, wl->sg_enabled);
4601 wl1271_ps_elp_sleep(wl);
4602
4603 out:
4604 mutex_unlock(&wl->mutex);
4605 return count;
4606}
4607
4608static DEVICE_ATTR(bt_coex_state, S_IRUGO | S_IWUSR,
4609 wl1271_sysfs_show_bt_coex_state,
4610 wl1271_sysfs_store_bt_coex_state);
4611
d717fd61
JO		 4612static ssize_t wl1271_sysfs_show_hw_pg_ver(struct device *dev,
4613 struct device_attribute *attr,
4614 char *buf)
4615{
4616 struct wl1271 *wl = dev_get_drvdata(dev);
4617 ssize_t len;
4618
2f63b011 4619 len = PAGE_SIZE;
d717fd61
JO		 4620
4621 mutex_lock(&wl->mutex);
4622 if (wl->hw_pg_ver >= 0)
4623 len = snprintf(buf, len, "%d\n", wl->hw_pg_ver);
4624 else
4625 len = snprintf(buf, len, "n/a\n");
4626 mutex_unlock(&wl->mutex);
4627
4628 return len;
4629}
4630
6f07b72a 4631static DEVICE_ATTR(hw_pg_ver, S_IRUGO,
d717fd61
JO		 4632 wl1271_sysfs_show_hw_pg_ver, NULL);
4633
95dac04f
IY		 4634static ssize_t wl1271_sysfs_read_fwlog(struct file *filp, struct kobject *kobj,
4635 struct bin_attribute *bin_attr,
4636 char *buffer, loff_t pos, size_t count)
4637{
4638 struct device *dev = container_of(kobj, struct device, kobj);
4639 struct wl1271 *wl = dev_get_drvdata(dev);
4640 ssize_t len;
4641 int ret;
4642
4643 ret = mutex_lock_interruptible(&wl->mutex);
4644 if (ret < 0)
4645 return -ERESTARTSYS;
4646
4647 /* Let only one thread read the log at a time, blocking others */
4648 while (wl->fwlog_size == 0) {
4649 DEFINE_WAIT(wait);
4650
4651 prepare_to_wait_exclusive(&wl->fwlog_waitq,
4652 &wait,
4653 TASK_INTERRUPTIBLE);
4654
4655 if (wl->fwlog_size != 0) {
4656 finish_wait(&wl->fwlog_waitq, &wait);
4657 break;
4658 }
4659
4660 mutex_unlock(&wl->mutex);
4661
4662 schedule();
4663 finish_wait(&wl->fwlog_waitq, &wait);
4664
4665 if (signal_pending(current))
4666 return -ERESTARTSYS;
4667
4668 ret = mutex_lock_interruptible(&wl->mutex);
4669 if (ret < 0)
4670 return -ERESTARTSYS;
4671 }
4672
4673 /* Check if the fwlog is still valid */
4674 if (wl->fwlog_size < 0) {
4675 mutex_unlock(&wl->mutex);
4676 return 0;
4677 }
4678
4679 /* Seeking is not supported - old logs are not kept. Disregard pos. */
4680 len = min(count, (size_t)wl->fwlog_size);
4681 wl->fwlog_size -= len;
4682 memcpy(buffer, wl->fwlog, len);
4683
4684 /* Make room for new messages */
4685 memmove(wl->fwlog, wl->fwlog + len, wl->fwlog_size);
4686
4687 mutex_unlock(&wl->mutex);
4688
4689 return len;
4690}
4691
4692static struct bin_attribute fwlog_attr = {
4693 .attr = {.name = "fwlog", .mode = S_IRUSR},
4694 .read = wl1271_sysfs_read_fwlog,
4695};
4696
2d5e82b8 4697int wl1271_register_hw(struct wl1271 *wl)
f5fc0f86
LC		 4698{
4699 int ret;
4700
4701 if (wl->mac80211_registered)
4702 return 0;
4703
31d26ec6
AN		 4704 ret = wl1271_fetch_nvs(wl);
4705 if (ret == 0) {
bc765bf3
SL		 4706 /* NOTE: The wl->nvs->nvs element must be first, in
4707 * order to simplify the casting, we assume it is at
4708 * the beginning of the wl->nvs structure.
4709 */
4710 u8 *nvs_ptr = (u8 *)wl->nvs;
31d26ec6
AN		 4711
4712 wl->mac_addr[0] = nvs_ptr[11];
4713 wl->mac_addr[1] = nvs_ptr[10];
4714 wl->mac_addr[2] = nvs_ptr[6];
4715 wl->mac_addr[3] = nvs_ptr[5];
4716 wl->mac_addr[4] = nvs_ptr[4];
4717 wl->mac_addr[5] = nvs_ptr[3];
4718 }
4719
f5fc0f86
LC		 4720 SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr);
4721
4722 ret = ieee80211_register_hw(wl->hw);
4723 if (ret < 0) {
4724 wl1271_error("unable to register mac80211 hw: %d", ret);
4725 return ret;
4726 }
4727
4728 wl->mac80211_registered = true;
4729
d60080ae
EP		 4730 wl1271_debugfs_init(wl);
4731
c2c192ac
JO		 4732 register_netdevice_notifier(&wl1271_dev_notifier);
4733
f5fc0f86
LC		 4734 wl1271_notice("loaded");
4735
4736 return 0;
4737}
50b3eb4b 4738EXPORT_SYMBOL_GPL(wl1271_register_hw);
f5fc0f86 4739
3b56dd6a
TP		 4740void wl1271_unregister_hw(struct wl1271 *wl)
4741{
4ae3fa87
JO		 4742 if (wl->state == WL1271_STATE_PLT)
4743 __wl1271_plt_stop(wl);
4744
c2c192ac 4745 unregister_netdevice_notifier(&wl1271_dev_notifier);
3b56dd6a
TP		 4746 ieee80211_unregister_hw(wl->hw);
4747 wl->mac80211_registered = false;
4748
4749}
4750EXPORT_SYMBOL_GPL(wl1271_unregister_hw);
4751
2d5e82b8 4752int wl1271_init_ieee80211(struct wl1271 *wl)
f5fc0f86 4753{
7a55724e
JO		 4754 static const u32 cipher_suites[] = {
4755 WLAN_CIPHER_SUITE_WEP40,
4756 WLAN_CIPHER_SUITE_WEP104,
4757 WLAN_CIPHER_SUITE_TKIP,
4758 WLAN_CIPHER_SUITE_CCMP,
4759 WL1271_CIPHER_SUITE_GEM,
4760 };
4761
1e2b7976
JO		 4762 /* The tx descriptor buffer and the TKIP space. */
4763 wl->hw->extra_tx_headroom = WL1271_TKIP_IV_SPACE +
4764 sizeof(struct wl1271_tx_hw_descr);
f5fc0f86
LC		 4765
4766 /* unit us */
4767 /* FIXME: find a proper value */
4768 wl->hw->channel_change_time = 10000;
50c500ad 4769 wl->hw->max_listen_interval = wl->conf.conn.max_listen_interval;
f5fc0f86
LC		 4770
4771 wl->hw->flags = IEEE80211_HW_SIGNAL_DBM |
03442a33 4772 IEEE80211_HW_BEACON_FILTER |
0a34332f 4773 IEEE80211_HW_SUPPORTS_PS |
4695dc91 4774 IEEE80211_HW_SUPPORTS_UAPSD |
a9af092b 4775 IEEE80211_HW_HAS_RATE_CONTROL |
00236aed 4776 IEEE80211_HW_CONNECTION_MONITOR |
62c0740c 4777 IEEE80211_HW_SUPPORTS_CQM_RSSI |
25eaea30 4778 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
fcd23b63 4779 IEEE80211_HW_SPECTRUM_MGMT |
93f8c8e0
AN		 4780 IEEE80211_HW_AP_LINK_PS |
4781 IEEE80211_HW_AMPDU_AGGREGATION |
4782 IEEE80211_HW_TX_AMPDU_SETUP_IN_HW;
f5fc0f86 4783
7a55724e
JO		 4784 wl->hw->wiphy->cipher_suites = cipher_suites;
4785 wl->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
4786
e0d8bbf0 4787 wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
045c745f
EP		 4788 BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP) |
4789 BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO);
f5fc0f86 4790 wl->hw->wiphy->max_scan_ssids = 1;
221737d2
LC		 4791 wl->hw->wiphy->max_sched_scan_ssids = 16;
4792 wl->hw->wiphy->max_match_sets = 16;
ea559b46
GE		 4793 /*
4794 * Maximum length of elements in scanning probe request templates
4795 * should be the maximum length possible for a template, without
4796 * the IEEE80211 header of the template
4797 */
154037d1 4798 wl->hw->wiphy->max_scan_ie_len = WL1271_CMD_TEMPL_DFLT_SIZE -
ea559b46 4799 sizeof(struct ieee80211_header);
a8aaaf53 4800
c9e79a47
LC		 4801 wl->hw->wiphy->max_sched_scan_ie_len = WL1271_CMD_TEMPL_DFLT_SIZE -
4802 sizeof(struct ieee80211_header);
4803
1ec23f7f
EP		 4804 wl->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
4805
4a31c11c
LC		 4806 /* make sure all our channels fit in the scanned_ch bitmask */
4807 BUILD_BUG_ON(ARRAY_SIZE(wl1271_channels) +
4808 ARRAY_SIZE(wl1271_channels_5ghz) >
4809 WL1271_MAX_CHANNELS);
a8aaaf53
LC		 4810 /*
4811 * We keep local copies of the band structs because we need to
4812 * modify them on a per-device basis.
4813 */
4814 memcpy(&wl->bands[IEEE80211_BAND_2GHZ], &wl1271_band_2ghz,
4815 sizeof(wl1271_band_2ghz));
4816 memcpy(&wl->bands[IEEE80211_BAND_5GHZ], &wl1271_band_5ghz,
4817 sizeof(wl1271_band_5ghz));
4818
4819 wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
4820 &wl->bands[IEEE80211_BAND_2GHZ];
4821 wl->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
4822 &wl->bands[IEEE80211_BAND_5GHZ];
1ebec3d7 4823
12bd8949 4824 wl->hw->queues = 4;
31627dc5 4825 wl->hw->max_rates = 1;
12bd8949 4826
b7417d93
JO		 4827 wl->hw->wiphy->reg_notifier = wl1271_reg_notify;
4828
8197b711 4829 SET_IEEE80211_DEV(wl->hw, wl1271_wl_to_dev(wl));
f5fc0f86 4830
f84f7d78 4831 wl->hw->sta_data_size = sizeof(struct wl1271_station);
87fbcb0f 4832 wl->hw->vif_data_size = sizeof(struct wl12xx_vif);
f84f7d78 4833
4c9cfa78
LC		 4834 wl->hw->max_rx_aggregation_subframes = 8;
4835
f5fc0f86
LC		 4836 return 0;
4837}
50b3eb4b 4838EXPORT_SYMBOL_GPL(wl1271_init_ieee80211);
f5fc0f86 4839
f5fc0f86 4840#define WL1271_DEFAULT_CHANNEL 0
c332a4b8 4841
2d5e82b8 4842struct ieee80211_hw *wl1271_alloc_hw(void)
f5fc0f86 4843{
f5fc0f86 4844 struct ieee80211_hw *hw;
3b56dd6a 4845 struct platform_device *plat_dev = NULL;
f5fc0f86 4846 struct wl1271 *wl;
a8c0ddb5 4847 int i, j, ret;
1f37cbc9 4848 unsigned int order;
f5fc0f86 4849
c7ffb902 4850 BUILD_BUG_ON(AP_MAX_STATIONS > WL12XX_MAX_LINKS);
f80c2d12 4851
f5fc0f86
LC		 4852 hw = ieee80211_alloc_hw(sizeof(*wl), &wl1271_ops);
4853 if (!hw) {
4854 wl1271_error("could not alloc ieee80211_hw");
a1dd8187 4855 ret = -ENOMEM;
3b56dd6a
TP		 4856 goto err_hw_alloc;
4857 }
4858
929ebd30 4859 plat_dev = kmemdup(&wl1271_device, sizeof(wl1271_device), GFP_KERNEL);
3b56dd6a
TP		 4860 if (!plat_dev) {
4861 wl1271_error("could not allocate platform_device");
4862 ret = -ENOMEM;
4863 goto err_plat_alloc;
f5fc0f86
LC		 4864 }
4865
4866 wl = hw->priv;
4867 memset(wl, 0, sizeof(*wl));
4868
01c09162
JO		 4869 INIT_LIST_HEAD(&wl->list);
4870
f5fc0f86 4871 wl->hw = hw;
3b56dd6a 4872 wl->plat_dev = plat_dev;
f5fc0f86 4873
a8c0ddb5 4874 for (i = 0; i < NUM_TX_QUEUES; i++)
c7ffb902 4875 for (j = 0; j < WL12XX_MAX_LINKS; j++)
a8c0ddb5
AN		 4876 skb_queue_head_init(&wl->links[j].tx_queue[i]);
4877
a620865e
IY		 4878 skb_queue_head_init(&wl->deferred_rx_queue);
4879 skb_queue_head_init(&wl->deferred_tx_queue);
4880
37b70a81 4881 INIT_DELAYED_WORK(&wl->elp_work, wl1271_elp_work);
a620865e 4882 INIT_WORK(&wl->netstack_work, wl1271_netstack_work);
117b38d0
JO		 4883 INIT_WORK(&wl->tx_work, wl1271_tx_work);
4884 INIT_WORK(&wl->recovery_work, wl1271_recovery_work);
4885 INIT_DELAYED_WORK(&wl->scan_complete_work, wl1271_scan_complete_work);
77ddaa10
EP		 4886 INIT_WORK(&wl->rx_streaming_enable_work,
4887 wl1271_rx_streaming_enable_work);
4888 INIT_WORK(&wl->rx_streaming_disable_work,
4889 wl1271_rx_streaming_disable_work);
4890
92ef8960
EP		 4891 wl->freezable_wq = create_freezable_workqueue("wl12xx_wq");
4892 if (!wl->freezable_wq) {
4893 ret = -ENOMEM;
4894 goto err_hw;
4895 }
4896
f5fc0f86 4897 wl->channel = WL1271_DEFAULT_CHANNEL;
f5fc0f86 4898 wl->rx_counter = 0;
f5fc0f86 4899 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
8a5a37a6 4900 wl->band = IEEE80211_BAND_2GHZ;
b771eee5 4901 wl->vif = NULL;
830fb67b 4902 wl->flags = 0;
7fc3a864 4903 wl->sg_enabled = true;
d717fd61 4904 wl->hw_pg_ver = -1;
b622d992
AN		 4905 wl->ap_ps_map = 0;
4906 wl->ap_fw_ps_map = 0;
606ea9fa 4907 wl->quirks = 0;
341b7cde 4908 wl->platform_quirks = 0;
33c2c06c 4909 wl->sched_scanning = false;
b992c682
OK		 4910 wl->tx_security_seq = 0;
4911 wl->tx_security_last_seq_lsb = 0;
e9eb8cbe 4912 wl->tx_spare_blocks = TX_HW_BLOCK_SPARE_DEFAULT;
f4df1bd5 4913 wl->system_hlid = WL12XX_SYSTEM_HLID;
da03209e 4914 wl->active_sta_count = 0;
77ddaa10
EP		 4915 setup_timer(&wl->rx_streaming_timer, wl1271_rx_streaming_timer,
4916 (unsigned long) wl);
95dac04f
IY		 4917 wl->fwlog_size = 0;
4918 init_waitqueue_head(&wl->fwlog_waitq);
f5fc0f86 4919
f4df1bd5
EP		 4920 /* The system link is always allocated */
4921 __set_bit(WL12XX_SYSTEM_HLID, wl->links_map);
4922
25eeb9e3 4923 memset(wl->tx_frames_map, 0, sizeof(wl->tx_frames_map));
be7078c2 4924 for (i = 0; i < ACX_TX_DESCRIPTORS; i++)
f5fc0f86
LC		 4925 wl->tx_frames[i] = NULL;
4926
4927 spin_lock_init(&wl->wl_lock);
4928
f5fc0f86
LC		 4929 wl->state = WL1271_STATE_OFF;
4930 mutex_init(&wl->mutex);
4931
c332a4b8
TP		 4932 /* Apply default driver configuration. */
4933 wl1271_conf_init(wl);
af7fbb28
EP		 4934 wl->bitrate_masks[IEEE80211_BAND_2GHZ] = wl->conf.tx.basic_rate;
4935 wl->bitrate_masks[IEEE80211_BAND_5GHZ] = wl->conf.tx.basic_rate_5;
c332a4b8 4936
1f37cbc9
IY		 4937 order = get_order(WL1271_AGGR_BUFFER_SIZE);
4938 wl->aggr_buf = (u8 *)__get_free_pages(GFP_KERNEL, order);
4939 if (!wl->aggr_buf) {
4940 ret = -ENOMEM;
92ef8960 4941 goto err_wq;
1f37cbc9
IY		 4942 }
4943
990f5de7
IY		 4944 wl->dummy_packet = wl12xx_alloc_dummy_packet(wl);
4945 if (!wl->dummy_packet) {
4946 ret = -ENOMEM;
4947 goto err_aggr;
4948 }
4949
95dac04f
IY		 4950 /* Allocate one page for the FW log */
4951 wl->fwlog = (u8 *)get_zeroed_page(GFP_KERNEL);
4952 if (!wl->fwlog) {
4953 ret = -ENOMEM;
4954 goto err_dummy_packet;
4955 }
4956
a1dd8187 4957 /* Register platform device */
3b56dd6a 4958 ret = platform_device_register(wl->plat_dev);
a1dd8187
JO		 4959 if (ret) {
4960 wl1271_error("couldn't register platform device");
95dac04f 4961 goto err_fwlog;
a1dd8187 4962 }
3b56dd6a 4963 dev_set_drvdata(&wl->plat_dev->dev, wl);
a1dd8187 4964
7fc3a864 4965 /* Create sysfs file to control bt coex state */
3b56dd6a 4966 ret = device_create_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
7fc3a864
JO		 4967 if (ret < 0) {
4968 wl1271_error("failed to create sysfs file bt_coex_state");
4969 goto err_platform;
4970 }
a1dd8187 4971
d717fd61
JO		 4972 /* Create sysfs file to get HW PG version */
4973 ret = device_create_file(&wl->plat_dev->dev, &dev_attr_hw_pg_ver);
4974 if (ret < 0) {
4975 wl1271_error("failed to create sysfs file hw_pg_ver");
4976 goto err_bt_coex_state;
4977 }
4978
95dac04f
IY		 4979 /* Create sysfs file for the FW log */
4980 ret = device_create_bin_file(&wl->plat_dev->dev, &fwlog_attr);
4981 if (ret < 0) {
4982 wl1271_error("failed to create sysfs file fwlog");
4983 goto err_hw_pg_ver;
4984 }
4985
c332a4b8 4986 return hw;
a1dd8187 4987
95dac04f
IY		 4988err_hw_pg_ver:
4989 device_remove_file(&wl->plat_dev->dev, &dev_attr_hw_pg_ver);
4990
d717fd61
JO		 4991err_bt_coex_state:
4992 device_remove_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
4993
7fc3a864 4994err_platform:
3b56dd6a 4995 platform_device_unregister(wl->plat_dev);
7fc3a864 4996
95dac04f
IY		 4997err_fwlog:
4998 free_page((unsigned long)wl->fwlog);
4999
990f5de7
IY		 5000err_dummy_packet:
5001 dev_kfree_skb(wl->dummy_packet);
5002
1f37cbc9
IY		 5003err_aggr:
5004 free_pages((unsigned long)wl->aggr_buf, order);
5005
92ef8960
EP		 5006err_wq:
5007 destroy_workqueue(wl->freezable_wq);
5008
a1dd8187 5009err_hw:
3b56dd6a
TP		 5010 wl1271_debugfs_exit(wl);
5011 kfree(plat_dev);
5012
5013err_plat_alloc:
5014 ieee80211_free_hw(hw);
5015
5016err_hw_alloc:
a1dd8187 5017
a1dd8187 5018 return ERR_PTR(ret);
c332a4b8 5019}
50b3eb4b 5020EXPORT_SYMBOL_GPL(wl1271_alloc_hw);
c332a4b8
TP		 5021
5022int wl1271_free_hw(struct wl1271 *wl)
5023{
95dac04f
IY		 5024 /* Unblock any fwlog readers */
5025 mutex_lock(&wl->mutex);
5026 wl->fwlog_size = -1;
5027 wake_up_interruptible_all(&wl->fwlog_waitq);
5028 mutex_unlock(&wl->mutex);
5029
5030 device_remove_bin_file(&wl->plat_dev->dev, &fwlog_attr);
6f07b72a
GK		 5031
5032 device_remove_file(&wl->plat_dev->dev, &dev_attr_hw_pg_ver);
5033
5034 device_remove_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
3b56dd6a 5035 platform_device_unregister(wl->plat_dev);
95dac04f 5036 free_page((unsigned long)wl->fwlog);
990f5de7 5037 dev_kfree_skb(wl->dummy_packet);
1f37cbc9
IY		 5038 free_pages((unsigned long)wl->aggr_buf,
5039 get_order(WL1271_AGGR_BUFFER_SIZE));
3b56dd6a 5040 kfree(wl->plat_dev);
c332a4b8
TP		 5041
5042 wl1271_debugfs_exit(wl);
5043
c332a4b8
TP		 5044 vfree(wl->fw);
5045 wl->fw = NULL;
5046 kfree(wl->nvs);
5047 wl->nvs = NULL;
5048
5049 kfree(wl->fw_status);
5050 kfree(wl->tx_res_if);
92ef8960 5051 destroy_workqueue(wl->freezable_wq);
c332a4b8
TP		 5052
5053 ieee80211_free_hw(wl->hw);
5054
5055 return 0;
5056}
50b3eb4b
TP		 5057EXPORT_SYMBOL_GPL(wl1271_free_hw);
5058
491bbd6b 5059u32 wl12xx_debug_level = DEBUG_NONE;
17c1755c 5060EXPORT_SYMBOL_GPL(wl12xx_debug_level);
491bbd6b 5061module_param_named(debug_level, wl12xx_debug_level, uint, S_IRUSR | S_IWUSR);
17c1755c
EP		 5062MODULE_PARM_DESC(debug_level, "wl12xx debugging level");
5063
95dac04f
IY		 5064module_param_named(fwlog, fwlog_param, charp, 0);
5065MODULE_PARM_DESC(keymap,
5066 "FW logger options: continuous, ondemand, dbgpins or disable");
5067
2a5bff09
EP		 5068module_param(bug_on_recovery, bool, S_IRUSR | S_IWUSR);
5069MODULE_PARM_DESC(bug_on_recovery, "BUG() on fw recovery");
5070
50b3eb4b 5071MODULE_LICENSE("GPL");
b1a48cab 5072MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
50b3eb4b 5073MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
Linux kernel - Deliverables
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