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wl12xx: remove set_bss_type field
[GitHub/mt8127/android_kernel_alcatel_ttab.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);
7f179b46 382static void wl1271_free_ap_keys(struct wl1271 *wl);
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{
405 int ret;
406 if (operstate != IF_OPER_UP)
407 return 0;
408
409 if (test_and_set_bit(WL1271_FLAG_STA_STATE_SENT, &wl->flags))
410 return 0;
411
b67476ef 412 ret = wl12xx_cmd_set_peer_state(wl, wl->sta_hlid);
ef4b29e9
EP		 413 if (ret < 0)
414 return ret;
415
251c177f
EP		 416 wl12xx_croc(wl, wl->role_id);
417
ef4b29e9
EP		 418 wl1271_info("Association completed.");
419 return 0;
420}
c2c192ac
JO		 421static int wl1271_dev_notify(struct notifier_block *me, unsigned long what,
422 void *arg)
423{
424 struct net_device *dev = arg;
425 struct wireless_dev *wdev;
426 struct wiphy *wiphy;
427 struct ieee80211_hw *hw;
428 struct wl1271 *wl;
429 struct wl1271 *wl_temp;
430 int ret = 0;
431
432 /* Check that this notification is for us. */
433 if (what != NETDEV_CHANGE)
434 return NOTIFY_DONE;
435
436 wdev = dev->ieee80211_ptr;
437 if (wdev == NULL)
438 return NOTIFY_DONE;
439
440 wiphy = wdev->wiphy;
441 if (wiphy == NULL)
442 return NOTIFY_DONE;
443
444 hw = wiphy_priv(wiphy);
445 if (hw == NULL)
446 return NOTIFY_DONE;
447
448 wl_temp = hw->priv;
f9f774c1 449 mutex_lock(&wl_list_mutex);
c2c192ac
JO		 450 list_for_each_entry(wl, &wl_list, list) {
451 if (wl == wl_temp)
452 break;
453 }
f9f774c1 454 mutex_unlock(&wl_list_mutex);
c2c192ac
JO		 455 if (wl != wl_temp)
456 return NOTIFY_DONE;
457
458 mutex_lock(&wl->mutex);
459
460 if (wl->state == WL1271_STATE_OFF)
461 goto out;
462
463 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
464 goto out;
465
a620865e 466 ret = wl1271_ps_elp_wakeup(wl);
c2c192ac
JO		 467 if (ret < 0)
468 goto out;
469
ef4b29e9 470 wl1271_check_operstate(wl, dev->operstate);
c2c192ac
JO		 471
472 wl1271_ps_elp_sleep(wl);
473
474out:
475 mutex_unlock(&wl->mutex);
476
477 return NOTIFY_OK;
478}
479
b7417d93 480static int wl1271_reg_notify(struct wiphy *wiphy,
573c67cf
LC		 481 struct regulatory_request *request)
482{
b7417d93
JO		 483 struct ieee80211_supported_band *band;
484 struct ieee80211_channel *ch;
485 int i;
486
487 band = wiphy->bands[IEEE80211_BAND_5GHZ];
488 for (i = 0; i < band->n_channels; i++) {
489 ch = &band->channels[i];
490 if (ch->flags & IEEE80211_CHAN_DISABLED)
491 continue;
492
493 if (ch->flags & IEEE80211_CHAN_RADAR)
494 ch->flags |= IEEE80211_CHAN_NO_IBSS |
495 IEEE80211_CHAN_PASSIVE_SCAN;
496
497 }
498
499 return 0;
500}
501
77ddaa10
EP		 502static int wl1271_set_rx_streaming(struct wl1271 *wl, bool enable)
503{
504 int ret = 0;
505
506 /* we should hold wl->mutex */
507 ret = wl1271_acx_ps_rx_streaming(wl, enable);
508 if (ret < 0)
509 goto out;
510
511 if (enable)
512 set_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags);
513 else
514 clear_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags);
515out:
516 return ret;
517}
518
519/*
520 * this function is being called when the rx_streaming interval
521 * has beed changed or rx_streaming should be disabled
522 */
523int wl1271_recalc_rx_streaming(struct wl1271 *wl)
524{
525 int ret = 0;
526 int period = wl->conf.rx_streaming.interval;
527
528 /* don't reconfigure if rx_streaming is disabled */
529 if (!test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags))
530 goto out;
531
532 /* reconfigure/disable according to new streaming_period */
533 if (period &&
534 test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags) &&
535 (wl->conf.rx_streaming.always ||
536 test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags)))
537 ret = wl1271_set_rx_streaming(wl, true);
538 else {
539 ret = wl1271_set_rx_streaming(wl, false);
540 /* don't cancel_work_sync since we might deadlock */
541 del_timer_sync(&wl->rx_streaming_timer);
542 }
543out:
544 return ret;
545}
546
547static void wl1271_rx_streaming_enable_work(struct work_struct *work)
548{
549 int ret;
550 struct wl1271 *wl =
551 container_of(work, struct wl1271, rx_streaming_enable_work);
552
553 mutex_lock(&wl->mutex);
554
555 if (test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags) ||
556 !test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags) ||
557 (!wl->conf.rx_streaming.always &&
558 !test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags)))
559 goto out;
560
561 if (!wl->conf.rx_streaming.interval)
562 goto out;
563
564 ret = wl1271_ps_elp_wakeup(wl);
565 if (ret < 0)
566 goto out;
567
568 ret = wl1271_set_rx_streaming(wl, true);
569 if (ret < 0)
570 goto out_sleep;
571
572 /* stop it after some time of inactivity */
573 mod_timer(&wl->rx_streaming_timer,
574 jiffies + msecs_to_jiffies(wl->conf.rx_streaming.duration));
575
576out_sleep:
577 wl1271_ps_elp_sleep(wl);
578out:
579 mutex_unlock(&wl->mutex);
580}
581
582static void wl1271_rx_streaming_disable_work(struct work_struct *work)
583{
584 int ret;
585 struct wl1271 *wl =
586 container_of(work, struct wl1271, rx_streaming_disable_work);
587
588 mutex_lock(&wl->mutex);
589
590 if (!test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags))
591 goto out;
592
593 ret = wl1271_ps_elp_wakeup(wl);
594 if (ret < 0)
595 goto out;
596
597 ret = wl1271_set_rx_streaming(wl, false);
598 if (ret)
599 goto out_sleep;
600
601out_sleep:
602 wl1271_ps_elp_sleep(wl);
603out:
604 mutex_unlock(&wl->mutex);
605}
606
607static void wl1271_rx_streaming_timer(unsigned long data)
608{
609 struct wl1271 *wl = (struct wl1271 *)data;
610 ieee80211_queue_work(wl->hw, &wl->rx_streaming_disable_work);
611}
612
8a08048a
JO		 613static void wl1271_conf_init(struct wl1271 *wl)
614{
2b60100b
JO		 615
616 /*
617 * This function applies the default configuration to the driver. This
618 * function is invoked upon driver load (spi probe.)
619 *
620 * The configuration is stored in a run-time structure in order to
621 * facilitate for run-time adjustment of any of the parameters. Making
622 * changes to the configuration structure will apply the new values on
623 * the next interface up (wl1271_op_start.)
624 */
625
626 /* apply driver default configuration */
8a08048a 627 memcpy(&wl->conf, &default_conf, sizeof(default_conf));
2b60100b 628
95dac04f
IY		 629 /* Adjust settings according to optional module parameters */
630 if (fwlog_param) {
631 if (!strcmp(fwlog_param, "continuous")) {
632 wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS;
633 } else if (!strcmp(fwlog_param, "ondemand")) {
634 wl->conf.fwlog.mode = WL12XX_FWLOG_ON_DEMAND;
635 } else if (!strcmp(fwlog_param, "dbgpins")) {
636 wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS;
637 wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_DBG_PINS;
638 } else if (!strcmp(fwlog_param, "disable")) {
639 wl->conf.fwlog.mem_blocks = 0;
640 wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_NONE;
641 } else {
642 wl1271_error("Unknown fwlog parameter %s", fwlog_param);
643 }
644 }
645}
2b60100b 646
f5fc0f86
LC		 647static int wl1271_plt_init(struct wl1271 *wl)
648{
12419cce
LC		 649 struct conf_tx_ac_category *conf_ac;
650 struct conf_tx_tid *conf_tid;
651 int ret, i;
f5fc0f86 652
49d750ca
SL		 653 if (wl->chip.id == CHIP_ID_1283_PG20)
654 ret = wl128x_cmd_general_parms(wl);
655 else
656 ret = wl1271_cmd_general_parms(wl);
4a90406b 657 if (ret < 0)
cc7defa3
LC		 658 return ret;
659
49d750ca
SL		 660 if (wl->chip.id == CHIP_ID_1283_PG20)
661 ret = wl128x_cmd_radio_parms(wl);
662 else
663 ret = wl1271_cmd_radio_parms(wl);
4a90406b 664 if (ret < 0)
cc7defa3
LC		 665 return ret;
666
49d750ca
SL		 667 if (wl->chip.id != CHIP_ID_1283_PG20) {
668 ret = wl1271_cmd_ext_radio_parms(wl);
669 if (ret < 0)
670 return ret;
671 }
644a4860
JO		 672 if (ret < 0)
673 return ret;
674
48a61477
SL		 675 /* Chip-specific initializations */
676 ret = wl1271_chip_specific_init(wl);
677 if (ret < 0)
678 return ret;
679
92c77c73 680 ret = wl1271_init_templates_config(wl);
12419cce
LC		 681 if (ret < 0)
682 return ret;
683
f5fc0f86
LC		 684 ret = wl1271_acx_init_mem_config(wl);
685 if (ret < 0)
686 return ret;
687
12419cce
LC		 688 /* PHY layer config */
689 ret = wl1271_init_phy_config(wl);
690 if (ret < 0)
691 goto out_free_memmap;
692
693 ret = wl1271_acx_dco_itrim_params(wl);
694 if (ret < 0)
695 goto out_free_memmap;
696
697 /* Initialize connection monitoring thresholds */
6ccbb92e 698 ret = wl1271_acx_conn_monit_params(wl, false);
12419cce
LC		 699 if (ret < 0)
700 goto out_free_memmap;
701
702 /* Bluetooth WLAN coexistence */
703 ret = wl1271_init_pta(wl);
704 if (ret < 0)
705 goto out_free_memmap;
706
ff86843d
SL		 707 /* FM WLAN coexistence */
708 ret = wl1271_acx_fm_coex(wl);
709 if (ret < 0)
710 goto out_free_memmap;
711
12419cce
LC		 712 /* Energy detection */
713 ret = wl1271_init_energy_detection(wl);
714 if (ret < 0)
715 goto out_free_memmap;
716
7f097988 717 ret = wl12xx_acx_mem_cfg(wl);
1ec610eb
GK		 718 if (ret < 0)
719 goto out_free_memmap;
720
12419cce 721 /* Default fragmentation threshold */
68d069c4 722 ret = wl1271_acx_frag_threshold(wl, wl->conf.tx.frag_threshold);
12419cce
LC		 723 if (ret < 0)
724 goto out_free_memmap;
725
9987a9da
JO		 726 /* Default TID/AC configuration */
727 BUG_ON(wl->conf.tx.tid_conf_count != wl->conf.tx.ac_conf_count);
12419cce 728 for (i = 0; i < wl->conf.tx.tid_conf_count; i++) {
9987a9da
JO		 729 conf_ac = &wl->conf.tx.ac_conf[i];
730 ret = wl1271_acx_ac_cfg(wl, conf_ac->ac, conf_ac->cw_min,
731 conf_ac->cw_max, conf_ac->aifsn,
732 conf_ac->tx_op_limit);
733 if (ret < 0)
734 goto out_free_memmap;
735
12419cce
LC		 736 conf_tid = &wl->conf.tx.tid_conf[i];
737 ret = wl1271_acx_tid_cfg(wl, conf_tid->queue_id,
738 conf_tid->channel_type,
739 conf_tid->tsid,
740 conf_tid->ps_scheme,
741 conf_tid->ack_policy,
742 conf_tid->apsd_conf[0],
743 conf_tid->apsd_conf[1]);
744 if (ret < 0)
745 goto out_free_memmap;
746 }
747
12419cce 748 /* Enable data path */
94210897 749 ret = wl1271_cmd_data_path(wl, 1);
f5fc0f86 750 if (ret < 0)
12419cce
LC		 751 goto out_free_memmap;
752
753 /* Configure for CAM power saving (ie. always active) */
754 ret = wl1271_acx_sleep_auth(wl, WL1271_PSM_CAM);
755 if (ret < 0)
756 goto out_free_memmap;
757
758 /* configure PM */
759 ret = wl1271_acx_pm_config(wl);
760 if (ret < 0)
761 goto out_free_memmap;
f5fc0f86
LC		 762
763 return 0;
12419cce
LC		 764
765 out_free_memmap:
766 kfree(wl->target_mem_map);
767 wl->target_mem_map = NULL;
768
769 return ret;
f5fc0f86
LC		 770}
771
9b17f1b3 772static void wl12xx_irq_ps_regulate_link(struct wl1271 *wl, u8 hlid, u8 tx_pkts)
b622d992 773{
da03209e 774 bool fw_ps, single_sta;
b622d992
AN		 775
776 /* only regulate station links */
777 if (hlid < WL1271_AP_STA_HLID_START)
778 return;
779
780 fw_ps = test_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
da03209e 781 single_sta = (wl->active_sta_count == 1);
b622d992
AN		 782
783 /*
784 * Wake up from high level PS if the STA is asleep with too little
9b17f1b3 785 * packets in FW or if the STA is awake.
b622d992 786 */
9b17f1b3 787 if (!fw_ps || tx_pkts < WL1271_PS_STA_MAX_PACKETS)
b622d992
AN		 788 wl1271_ps_link_end(wl, hlid);
789
da03209e
AN		 790 /*
791 * Start high-level PS if the STA is asleep with enough blocks in FW.
792 * Make an exception if this is the only connected station. In this
793 * case FW-memory congestion is not a problem.
794 */
795 else if (!single_sta && fw_ps && tx_pkts >= WL1271_PS_STA_MAX_PACKETS)
b622d992
AN		 796 wl1271_ps_link_start(wl, hlid, true);
797}
798
9b17f1b3
AN		 799bool wl1271_is_active_sta(struct wl1271 *wl, u8 hlid)
800{
04216da3
AN		 801 int id;
802
803 /* global/broadcast "stations" are always active */
804 if (hlid < WL1271_AP_STA_HLID_START)
805 return true;
806
807 id = hlid - WL1271_AP_STA_HLID_START;
9b17f1b3
AN		 808 return test_bit(id, wl->ap_hlid_map);
809}
810
811static void wl12xx_irq_update_links_status(struct wl1271 *wl,
812 struct wl12xx_fw_status *status)
b622d992
AN		 813{
814 u32 cur_fw_ps_map;
9b17f1b3
AN		 815 u8 hlid, cnt;
816
817 /* TODO: also use link_fast_bitmap here */
b622d992
AN		 818
819 cur_fw_ps_map = le32_to_cpu(status->link_ps_bitmap);
820 if (wl->ap_fw_ps_map != cur_fw_ps_map) {
821 wl1271_debug(DEBUG_PSM,
822 "link ps prev 0x%x cur 0x%x changed 0x%x",
823 wl->ap_fw_ps_map, cur_fw_ps_map,
824 wl->ap_fw_ps_map ^ cur_fw_ps_map);
825
826 wl->ap_fw_ps_map = cur_fw_ps_map;
827 }
828
829 for (hlid = WL1271_AP_STA_HLID_START; hlid < AP_MAX_LINKS; hlid++) {
9b17f1b3
AN		 830 if (!wl1271_is_active_sta(wl, hlid))
831 continue;
b622d992 832
9b17f1b3
AN		 833 cnt = status->tx_lnk_free_pkts[hlid] -
834 wl->links[hlid].prev_freed_pkts;
b622d992 835
9b17f1b3
AN		 836 wl->links[hlid].prev_freed_pkts =
837 status->tx_lnk_free_pkts[hlid];
838 wl->links[hlid].allocated_pkts -= cnt;
839
840 wl12xx_irq_ps_regulate_link(wl, hlid,
841 wl->links[hlid].allocated_pkts);
b622d992
AN		 842 }
843}
844
4d56ad9c
EP		 845static void wl12xx_fw_status(struct wl1271 *wl,
846 struct wl12xx_fw_status *status)
f5fc0f86 847{
536129c8
EP		 848 struct ieee80211_vif *vif = wl->vif; /* TODO: get as param */
849 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
ac5e1e39 850 struct timespec ts;
13b107dd 851 u32 old_tx_blk_count = wl->tx_blocks_available;
4d56ad9c 852 int avail, freed_blocks;
bf54e301 853 int i;
f5fc0f86 854
4d56ad9c 855 wl1271_raw_read(wl, FW_STATUS_ADDR, status, sizeof(*status), false);
13b107dd 856
f5fc0f86
LC		 857 wl1271_debug(DEBUG_IRQ, "intr: 0x%x (fw_rx_counter = %d, "
858 "drv_rx_counter = %d, tx_results_counter = %d)",
859 status->intr,
860 status->fw_rx_counter,
861 status->drv_rx_counter,
862 status->tx_results_counter);
863
bf54e301
AN		 864 for (i = 0; i < NUM_TX_QUEUES; i++) {
865 /* prevent wrap-around in freed-packets counter */
742246f8 866 wl->tx_allocated_pkts[i] -=
bf54e301
AN		 867 (status->tx_released_pkts[i] -
868 wl->tx_pkts_freed[i]) & 0xff;
869
870 wl->tx_pkts_freed[i] = status->tx_released_pkts[i];
871 }
872
bdf91cfa
AN		 873 /* prevent wrap-around in total blocks counter */
874 if (likely(wl->tx_blocks_freed <=
875 le32_to_cpu(status->total_released_blks)))
876 freed_blocks = le32_to_cpu(status->total_released_blks) -
877 wl->tx_blocks_freed;
878 else
879 freed_blocks = 0x100000000LL - wl->tx_blocks_freed +
880 le32_to_cpu(status->total_released_blks);
881
4d56ad9c 882 wl->tx_blocks_freed = le32_to_cpu(status->total_released_blks);
13b107dd 883
7bb5d6ce
AN		 884 wl->tx_allocated_blocks -= freed_blocks;
885
4d56ad9c 886 avail = le32_to_cpu(status->tx_total) - wl->tx_allocated_blocks;
13b107dd 887
4d56ad9c
EP		 888 /*
889 * The FW might change the total number of TX memblocks before
890 * we get a notification about blocks being released. Thus, the
891 * available blocks calculation might yield a temporary result
892 * which is lower than the actual available blocks. Keeping in
893 * mind that only blocks that were allocated can be moved from
894 * TX to RX, tx_blocks_available should never decrease here.
895 */
896 wl->tx_blocks_available = max((int)wl->tx_blocks_available,
897 avail);
f5fc0f86 898
a522550a 899 /* if more blocks are available now, tx work can be scheduled */
13b107dd 900 if (wl->tx_blocks_available > old_tx_blk_count)
a522550a 901 clear_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags);
f5fc0f86 902
4d56ad9c 903 /* for AP update num of allocated TX blocks per link and ps status */
536129c8 904 if (wlvif->bss_type == BSS_TYPE_AP_BSS)
9b17f1b3 905 wl12xx_irq_update_links_status(wl, status);
4d56ad9c 906
f5fc0f86 907 /* update the host-chipset time offset */
ac5e1e39
JO		 908 getnstimeofday(&ts);
909 wl->time_offset = (timespec_to_ns(&ts) >> 10) -
910 (s64)le32_to_cpu(status->fw_localtime);
f5fc0f86
LC		 911}
912
a620865e
IY		 913static void wl1271_flush_deferred_work(struct wl1271 *wl)
914{
915 struct sk_buff *skb;
916
917 /* Pass all received frames to the network stack */
918 while ((skb = skb_dequeue(&wl->deferred_rx_queue)))
919 ieee80211_rx_ni(wl->hw, skb);
920
921 /* Return sent skbs to the network stack */
922 while ((skb = skb_dequeue(&wl->deferred_tx_queue)))
c27d3acc 923 ieee80211_tx_status_ni(wl->hw, skb);
a620865e
IY		 924}
925
926static void wl1271_netstack_work(struct work_struct *work)
927{
928 struct wl1271 *wl =
929 container_of(work, struct wl1271, netstack_work);
930
931 do {
932 wl1271_flush_deferred_work(wl);
933 } while (skb_queue_len(&wl->deferred_rx_queue));
934}
1e73eb62 935
a620865e
IY		 936#define WL1271_IRQ_MAX_LOOPS 256
937
938irqreturn_t wl1271_irq(int irq, void *cookie)
f5fc0f86 939{
f5fc0f86 940 int ret;
c15f63bf 941 u32 intr;
1e73eb62 942 int loopcount = WL1271_IRQ_MAX_LOOPS;
a620865e
IY		 943 struct wl1271 *wl = (struct wl1271 *)cookie;
944 bool done = false;
945 unsigned int defer_count;
b07d4037
IY		 946 unsigned long flags;
947
948 /* TX might be handled here, avoid redundant work */
949 set_bit(WL1271_FLAG_TX_PENDING, &wl->flags);
950 cancel_work_sync(&wl->tx_work);
f5fc0f86 951
341b7cde
IY		 952 /*
953 * In case edge triggered interrupt must be used, we cannot iterate
954 * more than once without introducing race conditions with the hardirq.
955 */
956 if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
957 loopcount = 1;
958
f5fc0f86
LC		 959 mutex_lock(&wl->mutex);
960
961 wl1271_debug(DEBUG_IRQ, "IRQ work");
962
1e73eb62 963 if (unlikely(wl->state == WL1271_STATE_OFF))
f5fc0f86
LC		 964 goto out;
965
a620865e 966 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 967 if (ret < 0)
968 goto out;
969
a620865e
IY		 970 while (!done && loopcount--) {
971 /*
972 * In order to avoid a race with the hardirq, clear the flag
973 * before acknowledging the chip. Since the mutex is held,
974 * wl1271_ps_elp_wakeup cannot be called concurrently.
975 */
976 clear_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags);
977 smp_mb__after_clear_bit();
1e73eb62 978
4d56ad9c
EP		 979 wl12xx_fw_status(wl, wl->fw_status);
980 intr = le32_to_cpu(wl->fw_status->intr);
a620865e 981 intr &= WL1271_INTR_MASK;
1e73eb62 982 if (!intr) {
a620865e 983 done = true;
1e73eb62
JO		 984 continue;
985 }
f5fc0f86 986
ccc83b04
EP		 987 if (unlikely(intr & WL1271_ACX_INTR_WATCHDOG)) {
988 wl1271_error("watchdog interrupt received! "
989 "starting recovery.");
baacb9ae 990 wl12xx_queue_recovery_work(wl);
ccc83b04
EP		 991
992 /* restarting the chip. ignore any other interrupt. */
993 goto out;
994 }
995
a620865e 996 if (likely(intr & WL1271_ACX_INTR_DATA)) {
1e73eb62 997 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_DATA");
1fd2794f 998
4d56ad9c 999 wl12xx_rx(wl, wl->fw_status);
f5fc0f86 1000
a522550a 1001 /* Check if any tx blocks were freed */
b07d4037 1002 spin_lock_irqsave(&wl->wl_lock, flags);
a522550a 1003 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
f1a46384 1004 wl1271_tx_total_queue_count(wl) > 0) {
b07d4037 1005 spin_unlock_irqrestore(&wl->wl_lock, flags);
a522550a
IY		 1006 /*
1007 * In order to avoid starvation of the TX path,
1008 * call the work function directly.
1009 */
536129c8 1010 wl1271_tx_work_locked(wl, wl->vif);
b07d4037
IY		 1011 } else {
1012 spin_unlock_irqrestore(&wl->wl_lock, flags);
a522550a
IY		 1013 }
1014
8aad2464 1015 /* check for tx results */
4d56ad9c 1016 if (wl->fw_status->tx_results_counter !=
8aad2464
IY		 1017 (wl->tx_results_count & 0xff))
1018 wl1271_tx_complete(wl);
a620865e
IY		 1019
1020 /* Make sure the deferred queues don't get too long */
1021 defer_count = skb_queue_len(&wl->deferred_tx_queue) +
1022 skb_queue_len(&wl->deferred_rx_queue);
1023 if (defer_count > WL1271_DEFERRED_QUEUE_LIMIT)
1024 wl1271_flush_deferred_work(wl);
1e73eb62 1025 }
f5fc0f86 1026
1e73eb62
JO		 1027 if (intr & WL1271_ACX_INTR_EVENT_A) {
1028 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_A");
1029 wl1271_event_handle(wl, 0);
1030 }
f5fc0f86 1031
1e73eb62
JO		 1032 if (intr & WL1271_ACX_INTR_EVENT_B) {
1033 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_B");
1034 wl1271_event_handle(wl, 1);
1035 }
f5fc0f86 1036
1e73eb62
JO		 1037 if (intr & WL1271_ACX_INTR_INIT_COMPLETE)
1038 wl1271_debug(DEBUG_IRQ,
1039 "WL1271_ACX_INTR_INIT_COMPLETE");
f5fc0f86 1040
1e73eb62
JO		 1041 if (intr & WL1271_ACX_INTR_HW_AVAILABLE)
1042 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_HW_AVAILABLE");
c15f63bf 1043 }
f5fc0f86 1044
f5fc0f86
LC		 1045 wl1271_ps_elp_sleep(wl);
1046
1047out:
b07d4037
IY		 1048 spin_lock_irqsave(&wl->wl_lock, flags);
1049 /* In case TX was not handled here, queue TX work */
1050 clear_bit(WL1271_FLAG_TX_PENDING, &wl->flags);
1051 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
f1a46384 1052 wl1271_tx_total_queue_count(wl) > 0)
b07d4037
IY		 1053 ieee80211_queue_work(wl->hw, &wl->tx_work);
1054 spin_unlock_irqrestore(&wl->wl_lock, flags);
1055
f5fc0f86 1056 mutex_unlock(&wl->mutex);
a620865e
IY		 1057
1058 return IRQ_HANDLED;
f5fc0f86 1059}
a620865e 1060EXPORT_SYMBOL_GPL(wl1271_irq);
f5fc0f86 1061
f5fc0f86
LC		 1062static int wl1271_fetch_firmware(struct wl1271 *wl)
1063{
1064 const struct firmware *fw;
166d504e 1065 const char *fw_name;
f5fc0f86
LC		 1066 int ret;
1067
c302b2c9
AN		 1068 if (wl->chip.id == CHIP_ID_1283_PG20)
1069 fw_name = WL128X_FW_NAME;
1070 else
1071 fw_name = WL127X_FW_NAME;
166d504e
AN		 1072
1073 wl1271_debug(DEBUG_BOOT, "booting firmware %s", fw_name);
1074
1075 ret = request_firmware(&fw, fw_name, wl1271_wl_to_dev(wl));
f5fc0f86
LC		 1076
1077 if (ret < 0) {
1078 wl1271_error("could not get firmware: %d", ret);
1079 return ret;
1080 }
1081
1082 if (fw->size % 4) {
1083 wl1271_error("firmware size is not multiple of 32 bits: %zu",
1084 fw->size);
1085 ret = -EILSEQ;
1086 goto out;
1087 }
1088
166d504e 1089 vfree(wl->fw);
f5fc0f86 1090 wl->fw_len = fw->size;
1fba4974 1091 wl->fw = vmalloc(wl->fw_len);
f5fc0f86
LC		 1092
1093 if (!wl->fw) {
1094 wl1271_error("could not allocate memory for the firmware");
1095 ret = -ENOMEM;
1096 goto out;
1097 }
1098
1099 memcpy(wl->fw, fw->data, wl->fw_len);
f5fc0f86
LC		 1100 ret = 0;
1101
1102out:
1103 release_firmware(fw);
1104
1105 return ret;
1106}
1107
1108static int wl1271_fetch_nvs(struct wl1271 *wl)
1109{
1110 const struct firmware *fw;
1111 int ret;
1112
5aa42346 1113 ret = request_firmware(&fw, WL12XX_NVS_NAME, wl1271_wl_to_dev(wl));
f5fc0f86
LC		 1114
1115 if (ret < 0) {
1116 wl1271_error("could not get nvs file: %d", ret);
1117 return ret;
1118 }
1119
bc765bf3 1120 wl->nvs = kmemdup(fw->data, fw->size, GFP_KERNEL);
f5fc0f86
LC		 1121
1122 if (!wl->nvs) {
1123 wl1271_error("could not allocate memory for the nvs file");
1124 ret = -ENOMEM;
1125 goto out;
1126 }
1127
02fabb0e
JO		 1128 wl->nvs_len = fw->size;
1129
f5fc0f86
LC		 1130out:
1131 release_firmware(fw);
1132
1133 return ret;
1134}
1135
baacb9ae
IY		 1136void wl12xx_queue_recovery_work(struct wl1271 *wl)
1137{
1138 if (!test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
1139 ieee80211_queue_work(wl->hw, &wl->recovery_work);
1140}
1141
95dac04f
IY		 1142size_t wl12xx_copy_fwlog(struct wl1271 *wl, u8 *memblock, size_t maxlen)
1143{
1144 size_t len = 0;
1145
1146 /* The FW log is a length-value list, find where the log end */
1147 while (len < maxlen) {
1148 if (memblock[len] == 0)
1149 break;
1150 if (len + memblock[len] + 1 > maxlen)
1151 break;
1152 len += memblock[len] + 1;
1153 }
1154
1155 /* Make sure we have enough room */
1156 len = min(len, (size_t)(PAGE_SIZE - wl->fwlog_size));
1157
1158 /* Fill the FW log file, consumed by the sysfs fwlog entry */
1159 memcpy(wl->fwlog + wl->fwlog_size, memblock, len);
1160 wl->fwlog_size += len;
1161
1162 return len;
1163}
1164
1165static void wl12xx_read_fwlog_panic(struct wl1271 *wl)
1166{
1167 u32 addr;
1168 u32 first_addr;
1169 u8 *block;
1170
1171 if ((wl->quirks & WL12XX_QUIRK_FWLOG_NOT_IMPLEMENTED) ||
1172 (wl->conf.fwlog.mode != WL12XX_FWLOG_ON_DEMAND) ||
1173 (wl->conf.fwlog.mem_blocks == 0))
1174 return;
1175
1176 wl1271_info("Reading FW panic log");
1177
1178 block = kmalloc(WL12XX_HW_BLOCK_SIZE, GFP_KERNEL);
1179 if (!block)
1180 return;
1181
1182 /*
1183 * Make sure the chip is awake and the logger isn't active.
1184 * This might fail if the firmware hanged.
1185 */
1186 if (!wl1271_ps_elp_wakeup(wl))
1187 wl12xx_cmd_stop_fwlog(wl);
1188
1189 /* Read the first memory block address */
4d56ad9c
EP		 1190 wl12xx_fw_status(wl, wl->fw_status);
1191 first_addr = le32_to_cpu(wl->fw_status->log_start_addr);
95dac04f
IY		 1192 if (!first_addr)
1193 goto out;
1194
1195 /* Traverse the memory blocks linked list */
1196 addr = first_addr;
1197 do {
1198 memset(block, 0, WL12XX_HW_BLOCK_SIZE);
1199 wl1271_read_hwaddr(wl, addr, block, WL12XX_HW_BLOCK_SIZE,
1200 false);
1201
1202 /*
1203 * Memory blocks are linked to one another. The first 4 bytes
1204 * of each memory block hold the hardware address of the next
1205 * one. The last memory block points to the first one.
1206 */
4d56ad9c 1207 addr = le32_to_cpup((__le32 *)block);
95dac04f
IY		 1208 if (!wl12xx_copy_fwlog(wl, block + sizeof(addr),
1209 WL12XX_HW_BLOCK_SIZE - sizeof(addr)))
1210 break;
1211 } while (addr && (addr != first_addr));
1212
1213 wake_up_interruptible(&wl->fwlog_waitq);
1214
1215out:
1216 kfree(block);
1217}
1218
52b0e7a6
JO		 1219static void wl1271_recovery_work(struct work_struct *work)
1220{
1221 struct wl1271 *wl =
1222 container_of(work, struct wl1271, recovery_work);
1223
1224 mutex_lock(&wl->mutex);
1225
1226 if (wl->state != WL1271_STATE_ON)
1227 goto out;
1228
baacb9ae
IY		 1229 /* Avoid a recursive recovery */
1230 set_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
1231
95dac04f
IY		 1232 wl12xx_read_fwlog_panic(wl);
1233
52dcaf57
AN		 1234 wl1271_info("Hardware recovery in progress. FW ver: %s pc: 0x%x",
1235 wl->chip.fw_ver_str, wl1271_read32(wl, SCR_PAD4));
52b0e7a6 1236
2a5bff09
EP		 1237 BUG_ON(bug_on_recovery);
1238
b992c682
OK		 1239 /*
1240 * Advance security sequence number to overcome potential progress
1241 * in the firmware during recovery. This doens't hurt if the network is
1242 * not encrypted.
1243 */
1244 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags) ||
1245 test_bit(WL1271_FLAG_AP_STARTED, &wl->flags))
1246 wl->tx_security_seq += WL1271_TX_SQN_POST_RECOVERY_PADDING;
1247
7dece1c8
AN		 1248 /* Prevent spurious TX during FW restart */
1249 ieee80211_stop_queues(wl->hw);
1250
33c2c06c
LC		 1251 if (wl->sched_scanning) {
1252 ieee80211_sched_scan_stopped(wl->hw);
1253 wl->sched_scanning = false;
1254 }
1255
52b0e7a6 1256 /* reboot the chipset */
536129c8 1257 __wl1271_op_remove_interface(wl, wl->vif, false);
baacb9ae
IY		 1258
1259 clear_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
1260
52b0e7a6
JO		 1261 ieee80211_restart_hw(wl->hw);
1262
7dece1c8
AN		 1263 /*
1264 * Its safe to enable TX now - the queues are stopped after a request
1265 * to restart the HW.
1266 */
1267 ieee80211_wake_queues(wl->hw);
1268
52b0e7a6
JO		 1269out:
1270 mutex_unlock(&wl->mutex);
1271}
1272
f5fc0f86
LC		 1273static void wl1271_fw_wakeup(struct wl1271 *wl)
1274{
1275 u32 elp_reg;
1276
1277 elp_reg = ELPCTRL_WAKE_UP;
74621417 1278 wl1271_raw_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg);
f5fc0f86
LC		 1279}
1280
1281static int wl1271_setup(struct wl1271 *wl)
1282{
1283 wl->fw_status = kmalloc(sizeof(*wl->fw_status), GFP_KERNEL);
1284 if (!wl->fw_status)
1285 return -ENOMEM;
1286
1287 wl->tx_res_if = kmalloc(sizeof(*wl->tx_res_if), GFP_KERNEL);
1288 if (!wl->tx_res_if) {
1289 kfree(wl->fw_status);
1290 return -ENOMEM;
1291 }
1292
f5fc0f86
LC		 1293 return 0;
1294}
1295
1296static int wl1271_chip_wakeup(struct wl1271 *wl)
1297{
451de97a 1298 struct wl1271_partition_set partition;
f5fc0f86
LC		 1299 int ret = 0;
1300
01ac17ec 1301 msleep(WL1271_PRE_POWER_ON_SLEEP);
2cc78ff7
OBC		 1302 ret = wl1271_power_on(wl);
1303 if (ret < 0)
1304 goto out;
f5fc0f86 1305 msleep(WL1271_POWER_ON_SLEEP);
9b280722
TP		 1306 wl1271_io_reset(wl);
1307 wl1271_io_init(wl);
f5fc0f86
LC		 1308
1309 /* We don't need a real memory partition here, because we only want
1310 * to use the registers at this point. */
451de97a
JO		 1311 memset(&partition, 0, sizeof(partition));
1312 partition.reg.start = REGISTERS_BASE;
1313 partition.reg.size = REGISTERS_DOWN_SIZE;
1314 wl1271_set_partition(wl, &partition);
f5fc0f86
LC		 1315
1316 /* ELP module wake up */
1317 wl1271_fw_wakeup(wl);
1318
1319 /* whal_FwCtrl_BootSm() */
1320
1321 /* 0. read chip id from CHIP_ID */
7b048c52 1322 wl->chip.id = wl1271_read32(wl, CHIP_ID_B);
f5fc0f86
LC		 1323
1324 /* 1. check if chip id is valid */
1325
1326 switch (wl->chip.id) {
1327 case CHIP_ID_1271_PG10:
1328 wl1271_warning("chip id 0x%x (1271 PG10) support is obsolete",
1329 wl->chip.id);
1330
1331 ret = wl1271_setup(wl);
1332 if (ret < 0)
9ccd9217 1333 goto out;
f5fc0f86
LC		 1334 break;
1335 case CHIP_ID_1271_PG20:
1336 wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1271 PG20)",
1337 wl->chip.id);
1338
1339 ret = wl1271_setup(wl);
1340 if (ret < 0)
9ccd9217 1341 goto out;
f5fc0f86 1342 break;
0830ceed
SL		 1343 case CHIP_ID_1283_PG20:
1344 wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1283 PG20)",
1345 wl->chip.id);
1346
1347 ret = wl1271_setup(wl);
1348 if (ret < 0)
1349 goto out;
0c005048 1350
0da13da7
IY		 1351 if (wl1271_set_block_size(wl))
1352 wl->quirks |= WL12XX_QUIRK_BLOCKSIZE_ALIGNMENT;
0830ceed
SL		 1353 break;
1354 case CHIP_ID_1283_PG10:
f5fc0f86 1355 default:
9ccd9217 1356 wl1271_warning("unsupported chip id: 0x%x", wl->chip.id);
f5fc0f86 1357 ret = -ENODEV;
9ccd9217 1358 goto out;
f5fc0f86
LC		 1359 }
1360
c302b2c9 1361 if (wl->fw == NULL) {
f5fc0f86
LC		 1362 ret = wl1271_fetch_firmware(wl);
1363 if (ret < 0)
9ccd9217 1364 goto out;
f5fc0f86
LC		 1365 }
1366
1367 /* No NVS from netlink, try to get it from the filesystem */
1368 if (wl->nvs == NULL) {
1369 ret = wl1271_fetch_nvs(wl);
1370 if (ret < 0)
9ccd9217 1371 goto out;
f5fc0f86
LC		 1372 }
1373
1374out:
1375 return ret;
1376}
1377
f5fc0f86
LC		 1378int wl1271_plt_start(struct wl1271 *wl)
1379{
9ccd9217 1380 int retries = WL1271_BOOT_RETRIES;
6f07b72a 1381 struct wiphy *wiphy = wl->hw->wiphy;
f5fc0f86
LC		 1382 int ret;
1383
1384 mutex_lock(&wl->mutex);
1385
1386 wl1271_notice("power up");
1387
1388 if (wl->state != WL1271_STATE_OFF) {
1389 wl1271_error("cannot go into PLT state because not "
1390 "in off state: %d", wl->state);
1391 ret = -EBUSY;
1392 goto out;
1393 }
1394
9ccd9217
JO		 1395 while (retries) {
1396 retries--;
1397 ret = wl1271_chip_wakeup(wl);
1398 if (ret < 0)
1399 goto power_off;
f5fc0f86 1400
9ccd9217
JO		 1401 ret = wl1271_boot(wl);
1402 if (ret < 0)
1403 goto power_off;
eb5b28d0 1404
9ccd9217
JO		 1405 ret = wl1271_plt_init(wl);
1406 if (ret < 0)
1407 goto irq_disable;
bd5ea18f 1408
9ccd9217
JO		 1409 wl->state = WL1271_STATE_PLT;
1410 wl1271_notice("firmware booted in PLT mode (%s)",
4b7fac77 1411 wl->chip.fw_ver_str);
e7ddf549 1412
6f07b72a
GK		 1413 /* update hw/fw version info in wiphy struct */
1414 wiphy->hw_version = wl->chip.id;
1415 strncpy(wiphy->fw_version, wl->chip.fw_ver_str,
1416 sizeof(wiphy->fw_version));
1417
9ccd9217 1418 goto out;
eb5b28d0 1419
9ccd9217 1420irq_disable:
9ccd9217
JO		 1421 mutex_unlock(&wl->mutex);
1422 /* Unlocking the mutex in the middle of handling is
1423 inherently unsafe. In this case we deem it safe to do,
1424 because we need to let any possibly pending IRQ out of
1425 the system (and while we are WL1271_STATE_OFF the IRQ
1426 work function will not do anything.) Also, any other
1427 possible concurrent operations will fail due to the
1428 current state, hence the wl1271 struct should be safe. */
a620865e
IY		 1429 wl1271_disable_interrupts(wl);
1430 wl1271_flush_deferred_work(wl);
1431 cancel_work_sync(&wl->netstack_work);
9ccd9217
JO		 1432 mutex_lock(&wl->mutex);
1433power_off:
1434 wl1271_power_off(wl);
1435 }
f5fc0f86 1436
9ccd9217
JO		 1437 wl1271_error("firmware boot in PLT mode failed despite %d retries",
1438 WL1271_BOOT_RETRIES);
f5fc0f86
LC		 1439out:
1440 mutex_unlock(&wl->mutex);
1441
1442 return ret;
1443}
1444
4623ec7d 1445static int __wl1271_plt_stop(struct wl1271 *wl)
f5fc0f86
LC		 1446{
1447 int ret = 0;
1448
f5fc0f86
LC		 1449 wl1271_notice("power down");
1450
1451 if (wl->state != WL1271_STATE_PLT) {
1452 wl1271_error("cannot power down because not in PLT "
1453 "state: %d", wl->state);
1454 ret = -EBUSY;
1455 goto out;
1456 }
1457
f5fc0f86
LC		 1458 wl1271_power_off(wl);
1459
1460 wl->state = WL1271_STATE_OFF;
bd5ea18f 1461 wl->rx_counter = 0;
f5fc0f86 1462
f5fc0f86 1463 mutex_unlock(&wl->mutex);
a620865e
IY		 1464 wl1271_disable_interrupts(wl);
1465 wl1271_flush_deferred_work(wl);
1466 cancel_work_sync(&wl->netstack_work);
52b0e7a6 1467 cancel_work_sync(&wl->recovery_work);
4ae3fa87
JO		 1468 mutex_lock(&wl->mutex);
1469out:
1470 return ret;
1471}
1472
1473int wl1271_plt_stop(struct wl1271 *wl)
1474{
1475 int ret;
8c7f4f31 1476
4ae3fa87
JO		 1477 mutex_lock(&wl->mutex);
1478 ret = __wl1271_plt_stop(wl);
1479 mutex_unlock(&wl->mutex);
f5fc0f86
LC		 1480 return ret;
1481}
1482
7bb45683 1483static void wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
f5fc0f86
LC		 1484{
1485 struct wl1271 *wl = hw->priv;
536129c8
EP		 1486 struct ieee80211_tx_info *control = IEEE80211_SKB_CB(skb);
1487 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(control->control.vif);
830fb67b 1488 unsigned long flags;
708bb3cf 1489 int q, mapping;
a8c0ddb5 1490 u8 hlid = 0;
f5fc0f86 1491
708bb3cf
AN		 1492 mapping = skb_get_queue_mapping(skb);
1493 q = wl1271_tx_get_queue(mapping);
b07d4037 1494
536129c8 1495 if (wlvif->bss_type == BSS_TYPE_AP_BSS)
f4df1bd5 1496 hlid = wl12xx_tx_get_hlid_ap(wl, skb);
b07d4037 1497
830fb67b 1498 spin_lock_irqsave(&wl->wl_lock, flags);
b07d4037 1499
830fb67b 1500 /* queue the packet */
536129c8 1501 if (wlvif->bss_type == BSS_TYPE_AP_BSS) {
04216da3
AN		 1502 if (!wl1271_is_active_sta(wl, hlid)) {
1503 wl1271_debug(DEBUG_TX, "DROP skb hlid %d q %d",
1504 hlid, q);
1505 dev_kfree_skb(skb);
1506 goto out;
1507 }
1508
a8c0ddb5
AN		 1509 wl1271_debug(DEBUG_TX, "queue skb hlid %d q %d", hlid, q);
1510 skb_queue_tail(&wl->links[hlid].tx_queue[q], skb);
1511 } else {
1512 skb_queue_tail(&wl->tx_queue[q], skb);
1513 }
f5fc0f86 1514
04b4d69c
AN		 1515 wl->tx_queue_count[q]++;
1516
1517 /*
1518 * The workqueue is slow to process the tx_queue and we need stop
1519 * the queue here, otherwise the queue will get too long.
1520 */
1521 if (wl->tx_queue_count[q] >= WL1271_TX_QUEUE_HIGH_WATERMARK) {
1522 wl1271_debug(DEBUG_TX, "op_tx: stopping queues for q %d", q);
1523 ieee80211_stop_queue(wl->hw, mapping);
1524 set_bit(q, &wl->stopped_queues_map);
1525 }
1526
f5fc0f86
LC		 1527 /*
1528 * The chip specific setup must run before the first TX packet -
1529 * before that, the tx_work will not be initialized!
1530 */
1531
b07d4037
IY		 1532 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
1533 !test_bit(WL1271_FLAG_TX_PENDING, &wl->flags))
a522550a 1534 ieee80211_queue_work(wl->hw, &wl->tx_work);
b07d4037 1535
04216da3 1536out:
b07d4037 1537 spin_unlock_irqrestore(&wl->wl_lock, flags);
f5fc0f86
LC		 1538}
1539
ae47c45f
SL		 1540int wl1271_tx_dummy_packet(struct wl1271 *wl)
1541{
990f5de7 1542 unsigned long flags;
14623787
AN		 1543 int q;
1544
1545 /* no need to queue a new dummy packet if one is already pending */
1546 if (test_bit(WL1271_FLAG_DUMMY_PACKET_PENDING, &wl->flags))
1547 return 0;
1548
1549 q = wl1271_tx_get_queue(skb_get_queue_mapping(wl->dummy_packet));
990f5de7
IY		 1550
1551 spin_lock_irqsave(&wl->wl_lock, flags);
1552 set_bit(WL1271_FLAG_DUMMY_PACKET_PENDING, &wl->flags);
f1a46384 1553 wl->tx_queue_count[q]++;
990f5de7
IY		 1554 spin_unlock_irqrestore(&wl->wl_lock, flags);
1555
1556 /* The FW is low on RX memory blocks, so send the dummy packet asap */
1557 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags))
536129c8 1558 wl1271_tx_work_locked(wl, wl->vif);
990f5de7
IY		 1559
1560 /*
1561 * If the FW TX is busy, TX work will be scheduled by the threaded
1562 * interrupt handler function
1563 */
1564 return 0;
1565}
1566
1567/*
1568 * The size of the dummy packet should be at least 1400 bytes. However, in
1569 * order to minimize the number of bus transactions, aligning it to 512 bytes
1570 * boundaries could be beneficial, performance wise
1571 */
1572#define TOTAL_TX_DUMMY_PACKET_SIZE (ALIGN(1400, 512))
1573
cf27d867 1574static struct sk_buff *wl12xx_alloc_dummy_packet(struct wl1271 *wl)
990f5de7
IY		 1575{
1576 struct sk_buff *skb;
ae47c45f 1577 struct ieee80211_hdr_3addr *hdr;
990f5de7
IY		 1578 unsigned int dummy_packet_size;
1579
1580 dummy_packet_size = TOTAL_TX_DUMMY_PACKET_SIZE -
1581 sizeof(struct wl1271_tx_hw_descr) - sizeof(*hdr);
ae47c45f 1582
990f5de7 1583 skb = dev_alloc_skb(TOTAL_TX_DUMMY_PACKET_SIZE);
ae47c45f 1584 if (!skb) {
990f5de7
IY		 1585 wl1271_warning("Failed to allocate a dummy packet skb");
1586 return NULL;
ae47c45f
SL		 1587 }
1588
1589 skb_reserve(skb, sizeof(struct wl1271_tx_hw_descr));
1590
1591 hdr = (struct ieee80211_hdr_3addr *) skb_put(skb, sizeof(*hdr));
1592 memset(hdr, 0, sizeof(*hdr));
1593 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
990f5de7
IY		 1594 IEEE80211_STYPE_NULLFUNC |
1595 IEEE80211_FCTL_TODS);
ae47c45f 1596
990f5de7 1597 memset(skb_put(skb, dummy_packet_size), 0, dummy_packet_size);
ae47c45f 1598
18b92ffa
LC		 1599 /* Dummy packets require the TID to be management */
1600 skb->priority = WL1271_TID_MGMT;
ae47c45f 1601
990f5de7 1602 /* Initialize all fields that might be used */
86c438f4 1603 skb_set_queue_mapping(skb, 0);
990f5de7 1604 memset(IEEE80211_SKB_CB(skb), 0, sizeof(struct ieee80211_tx_info));
ae47c45f 1605
990f5de7 1606 return skb;
ae47c45f
SL		 1607}
1608
990f5de7 1609
c2c192ac
JO		 1610static struct notifier_block wl1271_dev_notifier = {
1611 .notifier_call = wl1271_dev_notify,
1612};
1613
f634a4e7 1614#ifdef CONFIG_PM
d2d66c56
EP		 1615static int wl1271_configure_suspend_sta(struct wl1271 *wl,
1616 struct wl12xx_vif *wlvif)
9439064c 1617{
e85d1629 1618 int ret = 0;
9439064c 1619
9439064c
EP		 1620 mutex_lock(&wl->mutex);
1621
e85d1629
EP		 1622 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
1623 goto out_unlock;
1624
9439064c
EP		 1625 ret = wl1271_ps_elp_wakeup(wl);
1626 if (ret < 0)
1627 goto out_unlock;
1628
1629 /* enter psm if needed*/
1630 if (!test_bit(WL1271_FLAG_PSM, &wl->flags)) {
1631 DECLARE_COMPLETION_ONSTACK(compl);
1632
1633 wl->ps_compl = &compl;
1634 ret = wl1271_ps_set_mode(wl, STATION_POWER_SAVE_MODE,
d2d66c56 1635 wlvif->basic_rate, true);
9439064c
EP		 1636 if (ret < 0)
1637 goto out_sleep;
1638
1639 /* we must unlock here so we will be able to get events */
1640 wl1271_ps_elp_sleep(wl);
1641 mutex_unlock(&wl->mutex);
1642
1643 ret = wait_for_completion_timeout(
1644 &compl, msecs_to_jiffies(WL1271_PS_COMPLETE_TIMEOUT));
1645 if (ret <= 0) {
1646 wl1271_warning("couldn't enter ps mode!");
1647 ret = -EBUSY;
1648 goto out;
1649 }
1650
1651 /* take mutex again, and wakeup */
1652 mutex_lock(&wl->mutex);
1653
1654 ret = wl1271_ps_elp_wakeup(wl);
1655 if (ret < 0)
1656 goto out_unlock;
1657 }
1658out_sleep:
1659 wl1271_ps_elp_sleep(wl);
1660out_unlock:
1661 mutex_unlock(&wl->mutex);
1662out:
1663 return ret;
1664
1665}
1666
8a7cf3fe
EP		 1667static int wl1271_configure_suspend_ap(struct wl1271 *wl)
1668{
e85d1629 1669 int ret = 0;
8a7cf3fe
EP		 1670
1671 mutex_lock(&wl->mutex);
1672
e85d1629
EP		 1673 if (!test_bit(WL1271_FLAG_AP_STARTED, &wl->flags))
1674 goto out_unlock;
1675
8a7cf3fe
EP		 1676 ret = wl1271_ps_elp_wakeup(wl);
1677 if (ret < 0)
1678 goto out_unlock;
1679
f42bd2cb 1680 ret = wl1271_acx_beacon_filter_opt(wl, true);
8a7cf3fe
EP		 1681
1682 wl1271_ps_elp_sleep(wl);
1683out_unlock:
1684 mutex_unlock(&wl->mutex);
1685 return ret;
1686
1687}
1688
d2d66c56
EP		 1689static int wl1271_configure_suspend(struct wl1271 *wl,
1690 struct wl12xx_vif *wlvif)
8a7cf3fe 1691{
536129c8 1692 if (wlvif->bss_type == BSS_TYPE_STA_BSS)
d2d66c56 1693 return wl1271_configure_suspend_sta(wl, wlvif);
536129c8 1694 if (wlvif->bss_type == BSS_TYPE_AP_BSS)
8a7cf3fe
EP		 1695 return wl1271_configure_suspend_ap(wl);
1696 return 0;
1697}
1698
d2d66c56
EP		 1699static void wl1271_configure_resume(struct wl1271 *wl,
1700 struct wl12xx_vif *wlvif)
9439064c
EP		 1701{
1702 int ret;
536129c8
EP		 1703 bool is_sta = wlvif->bss_type == BSS_TYPE_STA_BSS;
1704 bool is_ap = wlvif->bss_type == BSS_TYPE_AP_BSS;
9439064c 1705
8a7cf3fe 1706 if (!is_sta && !is_ap)
9439064c
EP		 1707 return;
1708
1709 mutex_lock(&wl->mutex);
1710 ret = wl1271_ps_elp_wakeup(wl);
1711 if (ret < 0)
1712 goto out;
1713
8a7cf3fe
EP		 1714 if (is_sta) {
1715 /* exit psm if it wasn't configured */
1716 if (!test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags))
1717 wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE,
d2d66c56 1718 wlvif->basic_rate, true);
8a7cf3fe 1719 } else if (is_ap) {
f42bd2cb 1720 wl1271_acx_beacon_filter_opt(wl, false);
8a7cf3fe 1721 }
9439064c
EP		 1722
1723 wl1271_ps_elp_sleep(wl);
1724out:
1725 mutex_unlock(&wl->mutex);
1726}
1727
402e4861
EP		 1728static int wl1271_op_suspend(struct ieee80211_hw *hw,
1729 struct cfg80211_wowlan *wow)
1730{
1731 struct wl1271 *wl = hw->priv;
d2d66c56
EP		 1732 struct ieee80211_vif *vif = wl->vif; /* TODO: get as param */
1733 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4a859df8
EP		 1734 int ret;
1735
402e4861 1736 wl1271_debug(DEBUG_MAC80211, "mac80211 suspend wow=%d", !!wow);
4a859df8 1737 WARN_ON(!wow || !wow->any);
f44e5868 1738
4a859df8 1739 wl->wow_enabled = true;
d2d66c56 1740 ret = wl1271_configure_suspend(wl, wlvif);
4a859df8
EP		 1741 if (ret < 0) {
1742 wl1271_warning("couldn't prepare device to suspend");
1743 return ret;
1744 }
1745 /* flush any remaining work */
1746 wl1271_debug(DEBUG_MAC80211, "flushing remaining works");
f44e5868 1747
4a859df8
EP		 1748 /*
1749 * disable and re-enable interrupts in order to flush
1750 * the threaded_irq
1751 */
1752 wl1271_disable_interrupts(wl);
1753
1754 /*
1755 * set suspended flag to avoid triggering a new threaded_irq
1756 * work. no need for spinlock as interrupts are disabled.
1757 */
1758 set_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
1759
1760 wl1271_enable_interrupts(wl);
1761 flush_work(&wl->tx_work);
1762 flush_delayed_work(&wl->pspoll_work);
1763 flush_delayed_work(&wl->elp_work);
f44e5868 1764
402e4861
EP		 1765 return 0;
1766}
1767
1768static int wl1271_op_resume(struct ieee80211_hw *hw)
1769{
1770 struct wl1271 *wl = hw->priv;
d2d66c56
EP		 1771 struct ieee80211_vif *vif = wl->vif; /* TODO: get as param */
1772 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4a859df8
EP		 1773 unsigned long flags;
1774 bool run_irq_work = false;
1775
402e4861
EP		 1776 wl1271_debug(DEBUG_MAC80211, "mac80211 resume wow=%d",
1777 wl->wow_enabled);
4a859df8 1778 WARN_ON(!wl->wow_enabled);
f44e5868
EP		 1779
1780 /*
1781 * re-enable irq_work enqueuing, and call irq_work directly if
1782 * there is a pending work.
1783 */
4a859df8
EP		 1784 spin_lock_irqsave(&wl->wl_lock, flags);
1785 clear_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
1786 if (test_and_clear_bit(WL1271_FLAG_PENDING_WORK, &wl->flags))
1787 run_irq_work = true;
1788 spin_unlock_irqrestore(&wl->wl_lock, flags);
9439064c 1789
4a859df8
EP		 1790 if (run_irq_work) {
1791 wl1271_debug(DEBUG_MAC80211,
1792 "run postponed irq_work directly");
1793 wl1271_irq(0, wl);
1794 wl1271_enable_interrupts(wl);
f44e5868 1795 }
d2d66c56 1796 wl1271_configure_resume(wl, wlvif);
ff91afc9 1797 wl->wow_enabled = false;
f44e5868 1798
402e4861
EP		 1799 return 0;
1800}
f634a4e7 1801#endif
402e4861 1802
f5fc0f86 1803static int wl1271_op_start(struct ieee80211_hw *hw)
1b72aecd
JO		 1804{
1805 wl1271_debug(DEBUG_MAC80211, "mac80211 start");
1806
1807 /*
1808 * We have to delay the booting of the hardware because
1809 * we need to know the local MAC address before downloading and
1810 * initializing the firmware. The MAC address cannot be changed
1811 * after boot, and without the proper MAC address, the firmware
1812 * will not function properly.
1813 *
1814 * The MAC address is first known when the corresponding interface
1815 * is added. That is where we will initialize the hardware.
1816 */
1817
1818 return 0;
1819}
1820
1821static void wl1271_op_stop(struct ieee80211_hw *hw)
1822{
1823 wl1271_debug(DEBUG_MAC80211, "mac80211 stop");
1824}
1825
536129c8 1826static u8 wl12xx_get_role_type(struct wl1271 *wl, struct wl12xx_vif *wlvif)
b78b47eb 1827{
536129c8 1828 switch (wlvif->bss_type) {
b78b47eb 1829 case BSS_TYPE_AP_BSS:
045c745f
EP		 1830 if (wl->p2p)
1831 return WL1271_ROLE_P2P_GO;
1832 else
1833 return WL1271_ROLE_AP;
b78b47eb
EP		 1834
1835 case BSS_TYPE_STA_BSS:
045c745f
EP		 1836 if (wl->p2p)
1837 return WL1271_ROLE_P2P_CL;
1838 else
1839 return WL1271_ROLE_STA;
b78b47eb 1840
227e81e1
EP		 1841 case BSS_TYPE_IBSS:
1842 return WL1271_ROLE_IBSS;
1843
b78b47eb 1844 default:
536129c8 1845 wl1271_error("invalid bss_type: %d", wlvif->bss_type);
b78b47eb
EP		 1846 }
1847 return WL12XX_INVALID_ROLE_TYPE;
1848}
1849
87fbcb0f
EP		 1850static void wl12xx_init_vif_data(struct wl12xx_vif *wlvif)
1851{
536129c8 1852 wlvif->bss_type = MAX_BSS_TYPE;
87fbcb0f 1853 wlvif->basic_rate_set = CONF_TX_RATE_MASK_BASIC;
d2d66c56 1854 wlvif->basic_rate = CONF_TX_RATE_MASK_BASIC;
30d0c8fd 1855 wlvif->rate_set = CONF_TX_RATE_MASK_BASIC;
87fbcb0f
EP		 1856}
1857
1b72aecd
JO		 1858static int wl1271_op_add_interface(struct ieee80211_hw *hw,
1859 struct ieee80211_vif *vif)
f5fc0f86
LC		 1860{
1861 struct wl1271 *wl = hw->priv;
ac01e948 1862 struct wiphy *wiphy = hw->wiphy;
536129c8 1863 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
9ccd9217 1864 int retries = WL1271_BOOT_RETRIES;
f5fc0f86 1865 int ret = 0;
b78b47eb 1866 u8 role_type;
71125abd 1867 bool booted = false;
f5fc0f86 1868
1b72aecd 1869 wl1271_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM",
045c745f 1870 ieee80211_vif_type_p2p(vif), vif->addr);
f5fc0f86
LC		 1871
1872 mutex_lock(&wl->mutex);
1b72aecd 1873 if (wl->vif) {
71125abd
EP		 1874 wl1271_debug(DEBUG_MAC80211,
1875 "multiple vifs are not supported yet");
1b72aecd
JO		 1876 ret = -EBUSY;
1877 goto out;
1878 }
536129c8 1879 wl12xx_init_vif_data(wlvif);
1b72aecd 1880
13026dec
JO		 1881 /*
1882 * in some very corner case HW recovery scenarios its possible to
1883 * get here before __wl1271_op_remove_interface is complete, so
1884 * opt out if that is the case.
1885 */
1886 if (test_bit(WL1271_FLAG_IF_INITIALIZED, &wl->flags)) {
1887 ret = -EBUSY;
1888 goto out;
1889 }
1890
045c745f
EP		 1891 switch (ieee80211_vif_type_p2p(vif)) {
1892 case NL80211_IFTYPE_P2P_CLIENT:
1893 wl->p2p = 1;
1894 /* fall-through */
1b72aecd 1895 case NL80211_IFTYPE_STATION:
536129c8 1896 wlvif->bss_type = BSS_TYPE_STA_BSS;
1b72aecd
JO		 1897 break;
1898 case NL80211_IFTYPE_ADHOC:
536129c8 1899 wlvif->bss_type = BSS_TYPE_IBSS;
1b72aecd 1900 break;
045c745f
EP		 1901 case NL80211_IFTYPE_P2P_GO:
1902 wl->p2p = 1;
1903 /* fall-through */
038d925b 1904 case NL80211_IFTYPE_AP:
536129c8 1905 wlvif->bss_type = BSS_TYPE_AP_BSS;
038d925b 1906 break;
1b72aecd
JO		 1907 default:
1908 ret = -EOPNOTSUPP;
1909 goto out;
1910 }
1911
536129c8 1912 role_type = wl12xx_get_role_type(wl, wlvif);
b78b47eb
EP		 1913 if (role_type == WL12XX_INVALID_ROLE_TYPE) {
1914 ret = -EINVAL;
1915 goto out;
1916 }
784f694d
EP		 1917 /*
1918 * we still need this in order to configure the fw
1919 * while uploading the nvs
1920 */
1b72aecd 1921 memcpy(wl->mac_addr, vif->addr, ETH_ALEN);
f5fc0f86
LC		 1922
1923 if (wl->state != WL1271_STATE_OFF) {
1924 wl1271_error("cannot start because not in off state: %d",
1925 wl->state);
1926 ret = -EBUSY;
1927 goto out;
1928 }
1929
9ccd9217
JO		 1930 while (retries) {
1931 retries--;
1932 ret = wl1271_chip_wakeup(wl);
1933 if (ret < 0)
1934 goto power_off;
f5fc0f86 1935
9ccd9217
JO		 1936 ret = wl1271_boot(wl);
1937 if (ret < 0)
1938 goto power_off;
f5fc0f86 1939
92c77c73
EP		 1940 ret = wl1271_hw_init(wl);
1941 if (ret < 0)
1942 goto irq_disable;
1943
536129c8
EP		 1944 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
1945 wlvif->bss_type == BSS_TYPE_IBSS) {
04e8079c
EP		 1946 /*
1947 * The device role is a special role used for
1948 * rx and tx frames prior to association (as
1949 * the STA role can get packets only from
1950 * its associated bssid)
1951 */
784f694d 1952 ret = wl12xx_cmd_role_enable(wl, vif->addr,
04e8079c
EP		 1953 WL1271_ROLE_DEVICE,
1954 &wl->dev_role_id);
1955 if (ret < 0)
1956 goto irq_disable;
1957 }
1958
784f694d
EP		 1959 ret = wl12xx_cmd_role_enable(wl, vif->addr,
1960 role_type, &wl->role_id);
b78b47eb
EP		 1961 if (ret < 0)
1962 goto irq_disable;
1963
92c77c73 1964 ret = wl1271_init_vif_specific(wl, vif);
9ccd9217
JO		 1965 if (ret < 0)
1966 goto irq_disable;
f5fc0f86 1967
71125abd
EP		 1968 booted = true;
1969 break;
eb5b28d0 1970
9ccd9217 1971irq_disable:
9ccd9217
JO		 1972 mutex_unlock(&wl->mutex);
1973 /* Unlocking the mutex in the middle of handling is
1974 inherently unsafe. In this case we deem it safe to do,
1975 because we need to let any possibly pending IRQ out of
1976 the system (and while we are WL1271_STATE_OFF the IRQ
1977 work function will not do anything.) Also, any other
1978 possible concurrent operations will fail due to the
1979 current state, hence the wl1271 struct should be safe. */
a620865e
IY		 1980 wl1271_disable_interrupts(wl);
1981 wl1271_flush_deferred_work(wl);
1982 cancel_work_sync(&wl->netstack_work);
9ccd9217
JO		 1983 mutex_lock(&wl->mutex);
1984power_off:
1985 wl1271_power_off(wl);
1986 }
eb5b28d0 1987
71125abd
EP		 1988 if (!booted) {
1989 wl1271_error("firmware boot failed despite %d retries",
1990 WL1271_BOOT_RETRIES);
1991 goto out;
1992 }
1993
1994 wl->vif = vif;
1995 wl->state = WL1271_STATE_ON;
13026dec 1996 set_bit(WL1271_FLAG_IF_INITIALIZED, &wl->flags);
4b7fac77 1997 wl1271_info("firmware booted (%s)", wl->chip.fw_ver_str);
71125abd
EP		 1998
1999 /* update hw/fw version info in wiphy struct */
2000 wiphy->hw_version = wl->chip.id;
4b7fac77 2001 strncpy(wiphy->fw_version, wl->chip.fw_ver_str,
71125abd
EP		 2002 sizeof(wiphy->fw_version));
2003
fb6a6819
LC		 2004 /*
2005 * Now we know if 11a is supported (info from the NVS), so disable
2006 * 11a channels if not supported
2007 */
2008 if (!wl->enable_11a)
2009 wiphy->bands[IEEE80211_BAND_5GHZ]->n_channels = 0;
2010
2011 wl1271_debug(DEBUG_MAC80211, "11a is %ssupported",
2012 wl->enable_11a ? "" : "not ");
2013
eb5b28d0 2014out:
f5fc0f86
LC		 2015 mutex_unlock(&wl->mutex);
2016
f9f774c1 2017 mutex_lock(&wl_list_mutex);
eb887dfd 2018 if (!ret)
01c09162 2019 list_add(&wl->list, &wl_list);
f9f774c1 2020 mutex_unlock(&wl_list_mutex);
01c09162 2021
f5fc0f86
LC		 2022 return ret;
2023}
2024
7dece1c8 2025static void __wl1271_op_remove_interface(struct wl1271 *wl,
536129c8 2026 struct ieee80211_vif *vif,
7dece1c8 2027 bool reset_tx_queues)
f5fc0f86 2028{
536129c8 2029 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
bf54e301 2030 int ret, i;
f5fc0f86 2031
1b72aecd 2032 wl1271_debug(DEBUG_MAC80211, "mac80211 remove interface");
f5fc0f86 2033
13026dec
JO		 2034 /* because of hardware recovery, we may get here twice */
2035 if (wl->state != WL1271_STATE_ON)
2036 return;
2037
1b72aecd 2038 wl1271_info("down");
f5fc0f86 2039
f9f774c1 2040 mutex_lock(&wl_list_mutex);
01c09162 2041 list_del(&wl->list);
f9f774c1 2042 mutex_unlock(&wl_list_mutex);
01c09162 2043
8d2ef7bd 2044 /* enable dyn ps just in case (if left on due to fw crash etc) */
536129c8 2045 if (wlvif->bss_type == BSS_TYPE_STA_BSS)
f532be6d 2046 ieee80211_enable_dyn_ps(wl->vif);
8d2ef7bd 2047
08688d6b 2048 if (wl->scan.state != WL1271_SCAN_STATE_IDLE) {
08688d6b 2049 wl->scan.state = WL1271_SCAN_STATE_IDLE;
4a31c11c 2050 memset(wl->scan.scanned_ch, 0, sizeof(wl->scan.scanned_ch));
784f694d 2051 wl->scan_vif = NULL;
b739a42c 2052 wl->scan.req = NULL;
76a029fb 2053 ieee80211_scan_completed(wl->hw, true);
f5fc0f86
LC		 2054 }
2055
b78b47eb
EP		 2056 if (!test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags)) {
2057 /* disable active roles */
2058 ret = wl1271_ps_elp_wakeup(wl);
2059 if (ret < 0)
2060 goto deinit;
2061
536129c8 2062 if (wlvif->bss_type == BSS_TYPE_STA_BSS) {
04e8079c
EP		 2063 ret = wl12xx_cmd_role_disable(wl, &wl->dev_role_id);
2064 if (ret < 0)
2065 goto deinit;
2066 }
2067
b78b47eb
EP		 2068 ret = wl12xx_cmd_role_disable(wl, &wl->role_id);
2069 if (ret < 0)
2070 goto deinit;
2071
2072 wl1271_ps_elp_sleep(wl);
2073 }
2074deinit:
e51ae9be 2075 /* clear all hlids (except system_hlid) */
b78b47eb 2076 wl->sta_hlid = WL12XX_INVALID_LINK_ID;
04e8079c 2077 wl->dev_hlid = WL12XX_INVALID_LINK_ID;
e51ae9be
AN		 2078 wl->ap_bcast_hlid = WL12XX_INVALID_LINK_ID;
2079 wl->ap_global_hlid = WL12XX_INVALID_LINK_ID;
b78b47eb 2080
13026dec
JO		 2081 /*
2082 * this must be before the cancel_work calls below, so that the work
2083 * functions don't perform further work.
2084 */
f5fc0f86
LC		 2085 wl->state = WL1271_STATE_OFF;
2086
f5fc0f86
LC		 2087 mutex_unlock(&wl->mutex);
2088
a620865e
IY		 2089 wl1271_disable_interrupts(wl);
2090 wl1271_flush_deferred_work(wl);
78abd320 2091 cancel_delayed_work_sync(&wl->scan_complete_work);
a620865e 2092 cancel_work_sync(&wl->netstack_work);
f5fc0f86 2093 cancel_work_sync(&wl->tx_work);
77ddaa10
EP		 2094 del_timer_sync(&wl->rx_streaming_timer);
2095 cancel_work_sync(&wl->rx_streaming_enable_work);
2096 cancel_work_sync(&wl->rx_streaming_disable_work);
90494a90 2097 cancel_delayed_work_sync(&wl->pspoll_work);
8c7f4f31 2098 cancel_delayed_work_sync(&wl->elp_work);
f5fc0f86
LC		 2099
2100 mutex_lock(&wl->mutex);
2101
2102 /* let's notify MAC80211 about the remaining pending TX frames */
7dece1c8 2103 wl1271_tx_reset(wl, reset_tx_queues);
f5fc0f86
LC		 2104 wl1271_power_off(wl);
2105
3b40c040 2106 memset(wl->ssid, 0, IEEE80211_MAX_SSID_LEN + 1);
f5fc0f86 2107 wl->ssid_len = 0;
045c745f 2108 wl->p2p = 0;
8a5a37a6 2109 wl->band = IEEE80211_BAND_2GHZ;
f5fc0f86
LC		 2110
2111 wl->rx_counter = 0;
19ad0715 2112 wl->psm_entry_retry = 0;
f5fc0f86
LC		 2113 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
2114 wl->tx_blocks_available = 0;
7bb5d6ce 2115 wl->tx_allocated_blocks = 0;
f5fc0f86
LC		 2116 wl->tx_results_count = 0;
2117 wl->tx_packets_count = 0;
2118 wl->time_offset = 0;
2119 wl->session_counter = 0;
af7fbb28
EP		 2120 wl->bitrate_masks[IEEE80211_BAND_2GHZ] = wl->conf.tx.basic_rate;
2121 wl->bitrate_masks[IEEE80211_BAND_5GHZ] = wl->conf.tx.basic_rate_5;
1b72aecd 2122 wl->vif = NULL;
e9eb8cbe 2123 wl->tx_spare_blocks = TX_HW_BLOCK_SPARE_DEFAULT;
7f179b46 2124 wl1271_free_ap_keys(wl);
f84f7d78 2125 memset(wl->ap_hlid_map, 0, sizeof(wl->ap_hlid_map));
b622d992
AN		 2126 wl->ap_fw_ps_map = 0;
2127 wl->ap_ps_map = 0;
33c2c06c 2128 wl->sched_scanning = false;
7f097988 2129 wl->role_id = WL12XX_INVALID_ROLE_ID;
04e8079c 2130 wl->dev_role_id = WL12XX_INVALID_ROLE_ID;
c690ec81
EP		 2131 memset(wl->roles_map, 0, sizeof(wl->roles_map));
2132 memset(wl->links_map, 0, sizeof(wl->links_map));
251c177f 2133 memset(wl->roc_map, 0, sizeof(wl->roc_map));
da03209e 2134 wl->active_sta_count = 0;
d6e19d13 2135
f4df1bd5
EP		 2136 /* The system link is always allocated */
2137 __set_bit(WL12XX_SYSTEM_HLID, wl->links_map);
2138
13026dec
JO		 2139 /*
2140 * this is performed after the cancel_work calls and the associated
2141 * mutex_lock, so that wl1271_op_add_interface does not accidentally
2142 * get executed before all these vars have been reset.
2143 */
2144 wl->flags = 0;
2145
4d56ad9c 2146 wl->tx_blocks_freed = 0;
f5fc0f86 2147
742246f8 2148 for (i = 0; i < NUM_TX_QUEUES; i++) {
bf54e301 2149 wl->tx_pkts_freed[i] = 0;
742246f8
AN		 2150 wl->tx_allocated_pkts[i] = 0;
2151 }
bf54e301 2152
f5fc0f86 2153 wl1271_debugfs_reset(wl);
bd9dc49c
JO		 2154
2155 kfree(wl->fw_status);
2156 wl->fw_status = NULL;
2157 kfree(wl->tx_res_if);
2158 wl->tx_res_if = NULL;
2159 kfree(wl->target_mem_map);
2160 wl->target_mem_map = NULL;
52a2a375 2161}
bd9dc49c 2162
52a2a375
JO		 2163static void wl1271_op_remove_interface(struct ieee80211_hw *hw,
2164 struct ieee80211_vif *vif)
2165{
2166 struct wl1271 *wl = hw->priv;
2167
2168 mutex_lock(&wl->mutex);
67353299
JO		 2169 /*
2170 * wl->vif can be null here if someone shuts down the interface
2171 * just when hardware recovery has been started.
2172 */
2173 if (wl->vif) {
2174 WARN_ON(wl->vif != vif);
536129c8 2175 __wl1271_op_remove_interface(wl, vif, true);
67353299 2176 }
52b0e7a6 2177
67353299 2178 mutex_unlock(&wl->mutex);
52b0e7a6 2179 cancel_work_sync(&wl->recovery_work);
f5fc0f86
LC		 2180}
2181
87fbcb0f
EP		 2182static int wl1271_join(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2183 bool set_assoc)
82429d32
JO		 2184{
2185 int ret;
536129c8 2186 bool is_ibss = (wlvif->bss_type == BSS_TYPE_IBSS);
82429d32 2187
69e5434c
JO		 2188 /*
2189 * One of the side effects of the JOIN command is that is clears
2190 * WPA/WPA2 keys from the chipset. Performing a JOIN while associated
2191 * to a WPA/WPA2 access point will therefore kill the data-path.
8bf69aae
OBC		 2192 * Currently the only valid scenario for JOIN during association
2193 * is on roaming, in which case we will also be given new keys.
2194 * Keep the below message for now, unless it starts bothering
2195 * users who really like to roam a lot :)
69e5434c
JO		 2196 */
2197 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
2198 wl1271_info("JOIN while associated.");
2199
2200 if (set_assoc)
2201 set_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags);
2202
227e81e1 2203 if (is_ibss)
87fbcb0f 2204 ret = wl12xx_cmd_role_start_ibss(wl, wlvif);
227e81e1 2205 else
87fbcb0f 2206 ret = wl12xx_cmd_role_start_sta(wl, wlvif);
82429d32
JO		 2207 if (ret < 0)
2208 goto out;
2209
82429d32
JO		 2210 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
2211 goto out;
2212
2213 /*
2214 * The join command disable the keep-alive mode, shut down its process,
2215 * and also clear the template config, so we need to reset it all after
2216 * the join. The acx_aid starts the keep-alive process, and the order
2217 * of the commands below is relevant.
2218 */
2219 ret = wl1271_acx_keep_alive_mode(wl, true);
2220 if (ret < 0)
2221 goto out;
2222
2223 ret = wl1271_acx_aid(wl, wl->aid);
2224 if (ret < 0)
2225 goto out;
2226
d2d66c56 2227 ret = wl12xx_cmd_build_klv_null_data(wl, wlvif);
82429d32
JO		 2228 if (ret < 0)
2229 goto out;
2230
2231 ret = wl1271_acx_keep_alive_config(wl, CMD_TEMPL_KLV_IDX_NULL_DATA,
2232 ACX_KEEP_ALIVE_TPL_VALID);
2233 if (ret < 0)
2234 goto out;
2235
2236out:
2237 return ret;
2238}
2239
2240static int wl1271_unjoin(struct wl1271 *wl)
c7f43e45
LC		 2241{
2242 int ret;
2243
6d158ff3
SL		 2244 if (test_and_clear_bit(WL1271_FLAG_CS_PROGRESS, &wl->flags)) {
2245 wl12xx_cmd_stop_channel_switch(wl);
2246 ieee80211_chswitch_done(wl->vif, false);
2247 }
2248
c7f43e45 2249 /* to stop listening to a channel, we disconnect */
c690ec81 2250 ret = wl12xx_cmd_role_stop_sta(wl);
c7f43e45
LC		 2251 if (ret < 0)
2252 goto out;
2253
b992c682
OK		 2254 /* reset TX security counters on a clean disconnect */
2255 wl->tx_security_last_seq_lsb = 0;
2256 wl->tx_security_seq = 0;
2257
c7f43e45
LC		 2258out:
2259 return ret;
2260}
2261
87fbcb0f 2262static void wl1271_set_band_rate(struct wl1271 *wl, struct wl12xx_vif *wlvif)
ebba60c6 2263{
87fbcb0f 2264 wlvif->basic_rate_set = wl->bitrate_masks[wl->band];
30d0c8fd 2265 wlvif->rate_set = wlvif->basic_rate_set;
ebba60c6
JO		 2266}
2267
251c177f
EP		 2268static bool wl12xx_is_roc(struct wl1271 *wl)
2269{
2270 u8 role_id;
2271
2272 role_id = find_first_bit(wl->roc_map, WL12XX_MAX_ROLES);
2273 if (role_id >= WL12XX_MAX_ROLES)
2274 return false;
2275
2276 return true;
2277}
2278
87fbcb0f
EP		 2279static int wl1271_sta_handle_idle(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2280 bool idle)
0d58cbff
JO		 2281{
2282 int ret;
2283
2284 if (idle) {
251c177f
EP		 2285 /* no need to croc if we weren't busy (e.g. during boot) */
2286 if (wl12xx_is_roc(wl)) {
2287 ret = wl12xx_croc(wl, wl->dev_role_id);
2288 if (ret < 0)
2289 goto out;
2290
2291 ret = wl12xx_cmd_role_stop_dev(wl);
0d58cbff
JO		 2292 if (ret < 0)
2293 goto out;
2294 }
30d0c8fd
EP		 2295 wlvif->rate_set =
2296 wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
2297 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
0d58cbff
JO		 2298 if (ret < 0)
2299 goto out;
2300 ret = wl1271_acx_keep_alive_config(
2301 wl, CMD_TEMPL_KLV_IDX_NULL_DATA,
2302 ACX_KEEP_ALIVE_TPL_INVALID);
2303 if (ret < 0)
2304 goto out;
2305 set_bit(WL1271_FLAG_IDLE, &wl->flags);
2306 } else {
33c2c06c
LC		 2307 /* The current firmware only supports sched_scan in idle */
2308 if (wl->sched_scanning) {
2309 wl1271_scan_sched_scan_stop(wl);
2310 ieee80211_sched_scan_stopped(wl->hw);
2311 }
2312
251c177f
EP		 2313 ret = wl12xx_cmd_role_start_dev(wl);
2314 if (ret < 0)
2315 goto out;
2316
2317 ret = wl12xx_roc(wl, wl->dev_role_id);
0d58cbff
JO		 2318 if (ret < 0)
2319 goto out;
2320 clear_bit(WL1271_FLAG_IDLE, &wl->flags);
2321 }
2322
2323out:
2324 return ret;
2325}
2326
f5fc0f86
LC		 2327static int wl1271_op_config(struct ieee80211_hw *hw, u32 changed)
2328{
2329 struct wl1271 *wl = hw->priv;
87fbcb0f
EP		 2330 struct ieee80211_vif *vif = wl->vif; /* TODO: reconfig all vifs */
2331 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
f5fc0f86
LC		 2332 struct ieee80211_conf *conf = &hw->conf;
2333 int channel, ret = 0;
bee0ffec 2334 bool is_ap;
f5fc0f86
LC		 2335
2336 channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
2337
bee0ffec
AN		 2338 wl1271_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d %s"
2339 " changed 0x%x",
f5fc0f86
LC		 2340 channel,
2341 conf->flags & IEEE80211_CONF_PS ? "on" : "off",
c7f43e45 2342 conf->power_level,
bee0ffec
AN		 2343 conf->flags & IEEE80211_CONF_IDLE ? "idle" : "in use",
2344 changed);
f5fc0f86 2345
781608c4
JO		 2346 /*
2347 * mac80211 will go to idle nearly immediately after transmitting some
2348 * frames, such as the deauth. To make sure those frames reach the air,
2349 * wait here until the TX queue is fully flushed.
2350 */
2351 if ((changed & IEEE80211_CONF_CHANGE_IDLE) &&
2352 (conf->flags & IEEE80211_CONF_IDLE))
2353 wl1271_tx_flush(wl);
2354
f5fc0f86
LC		 2355 mutex_lock(&wl->mutex);
2356
f8d9802f 2357 if (unlikely(wl->state == WL1271_STATE_OFF)) {
17e672d6
AN		 2358 /* we support configuring the channel and band while off */
2359 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL)) {
2360 wl->band = conf->channel->band;
2361 wl->channel = channel;
2362 }
2363
097f8821
AN		 2364 if ((changed & IEEE80211_CONF_CHANGE_POWER))
2365 wl->power_level = conf->power_level;
2366
2c10bb9c 2367 goto out;
f8d9802f 2368 }
8a5a37a6 2369
536129c8 2370 is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
bee0ffec 2371
a620865e 2372 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 2373 if (ret < 0)
2374 goto out;
2375
ebba60c6 2376 /* if the channel changes while joined, join again */
69e5434c
JO		 2377 if (changed & IEEE80211_CONF_CHANGE_CHANNEL &&
2378 ((wl->band != conf->channel->band) ||
2379 (wl->channel != channel))) {
c6930b07 2380 /* send all pending packets */
536129c8 2381 wl1271_tx_work_locked(wl, vif);
ebba60c6
JO		 2382 wl->band = conf->channel->band;
2383 wl->channel = channel;
2384
bee0ffec
AN		 2385 if (!is_ap) {
2386 /*
2387 * FIXME: the mac80211 should really provide a fixed
2388 * rate to use here. for now, just use the smallest
2389 * possible rate for the band as a fixed rate for
2390 * association frames and other control messages.
2391 */
2392 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
87fbcb0f 2393 wl1271_set_band_rate(wl, wlvif);
bee0ffec 2394
d2d66c56 2395 wlvif->basic_rate =
87fbcb0f
EP		 2396 wl1271_tx_min_rate_get(wl,
2397 wlvif->basic_rate_set);
30d0c8fd 2398 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
ebba60c6 2399 if (ret < 0)
bee0ffec 2400 wl1271_warning("rate policy for channel "
ebba60c6 2401 "failed %d", ret);
bee0ffec 2402
251c177f
EP		 2403 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags)) {
2404 if (wl12xx_is_roc(wl)) {
2405 /* roaming */
2406 ret = wl12xx_croc(wl, wl->dev_role_id);
2407 if (ret < 0)
2408 goto out_sleep;
2409 }
87fbcb0f 2410 ret = wl1271_join(wl, wlvif, false);
bee0ffec
AN		 2411 if (ret < 0)
2412 wl1271_warning("cmd join on channel "
2413 "failed %d", ret);
251c177f
EP		 2414 } else {
2415 /*
2416 * change the ROC channel. do it only if we are
2417 * not idle. otherwise, CROC will be called
2418 * anyway.
2419 */
2420 if (wl12xx_is_roc(wl) &&
2421 !(conf->flags & IEEE80211_CONF_IDLE)) {
2422 ret = wl12xx_croc(wl, wl->dev_role_id);
2423 if (ret < 0)
2424 goto out_sleep;
2425
2426 ret = wl12xx_roc(wl, wl->dev_role_id);
2427 if (ret < 0)
2428 wl1271_warning("roc failed %d",
2429 ret);
2430 }
bee0ffec 2431 }
ebba60c6
JO		 2432 }
2433 }
2434
bee0ffec 2435 if (changed & IEEE80211_CONF_CHANGE_IDLE && !is_ap) {
87fbcb0f 2436 ret = wl1271_sta_handle_idle(wl, wlvif,
bee0ffec 2437 conf->flags & IEEE80211_CONF_IDLE);
0d58cbff
JO		 2438 if (ret < 0)
2439 wl1271_warning("idle mode change failed %d", ret);
f5fc0f86
LC		 2440 }
2441
90494a90
JO		 2442 /*
2443 * if mac80211 changes the PSM mode, make sure the mode is not
2444 * incorrectly changed after the pspoll failure active window.
2445 */
2446 if (changed & IEEE80211_CONF_CHANGE_PS)
2447 clear_bit(WL1271_FLAG_PSPOLL_FAILURE, &wl->flags);
2448
71449f8d
JO		 2449 if (conf->flags & IEEE80211_CONF_PS &&
2450 !test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) {
2451 set_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags);
f5fc0f86
LC		 2452
2453 /*
2454 * We enter PSM only if we're already associated.
2455 * If we're not, we'll enter it when joining an SSID,
2456 * through the bss_info_changed() hook.
2457 */
830fb67b 2458 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags)) {
18f8d468 2459 wl1271_debug(DEBUG_PSM, "psm enabled");
d8c42c0c 2460 ret = wl1271_ps_set_mode(wl, STATION_POWER_SAVE_MODE,
d2d66c56 2461 wlvif->basic_rate, true);
af5e084b 2462 }
f5fc0f86 2463 } else if (!(conf->flags & IEEE80211_CONF_PS) &&
71449f8d 2464 test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) {
18f8d468 2465 wl1271_debug(DEBUG_PSM, "psm disabled");
f5fc0f86 2466
71449f8d 2467 clear_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags);
f5fc0f86 2468
71449f8d 2469 if (test_bit(WL1271_FLAG_PSM, &wl->flags))
d8c42c0c 2470 ret = wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE,
d2d66c56 2471 wlvif->basic_rate, true);
f5fc0f86
LC		 2472 }
2473
2474 if (conf->power_level != wl->power_level) {
2475 ret = wl1271_acx_tx_power(wl, conf->power_level);
2476 if (ret < 0)
c6317a54 2477 goto out_sleep;
f5fc0f86
LC		 2478
2479 wl->power_level = conf->power_level;
2480 }
2481
2482out_sleep:
2483 wl1271_ps_elp_sleep(wl);
2484
2485out:
2486 mutex_unlock(&wl->mutex);
2487
2488 return ret;
2489}
2490
b54853f1
JO		 2491struct wl1271_filter_params {
2492 bool enabled;
2493 int mc_list_length;
2494 u8 mc_list[ACX_MC_ADDRESS_GROUP_MAX][ETH_ALEN];
2495};
2496
22bedad3
JP		 2497static u64 wl1271_op_prepare_multicast(struct ieee80211_hw *hw,
2498 struct netdev_hw_addr_list *mc_list)
c87dec9f 2499{
c87dec9f 2500 struct wl1271_filter_params *fp;
22bedad3 2501 struct netdev_hw_addr *ha;
2c10bb9c 2502 struct wl1271 *wl = hw->priv;
c87dec9f 2503
2c10bb9c
SD		 2504 if (unlikely(wl->state == WL1271_STATE_OFF))
2505 return 0;
c87dec9f 2506
74441130 2507 fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
c87dec9f
JO		 2508 if (!fp) {
2509 wl1271_error("Out of memory setting filters.");
2510 return 0;
2511 }
2512
2513 /* update multicast filtering parameters */
c87dec9f 2514 fp->mc_list_length = 0;
22bedad3
JP		 2515 if (netdev_hw_addr_list_count(mc_list) > ACX_MC_ADDRESS_GROUP_MAX) {
2516 fp->enabled = false;
2517 } else {
2518 fp->enabled = true;
2519 netdev_hw_addr_list_for_each(ha, mc_list) {
c87dec9f 2520 memcpy(fp->mc_list[fp->mc_list_length],
22bedad3 2521 ha->addr, ETH_ALEN);
c87dec9f 2522 fp->mc_list_length++;
22bedad3 2523 }
c87dec9f
JO		 2524 }
2525
b54853f1 2526 return (u64)(unsigned long)fp;
c87dec9f 2527}
f5fc0f86 2528
b54853f1
JO		 2529#define WL1271_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
2530 FIF_ALLMULTI | \
2531 FIF_FCSFAIL | \
2532 FIF_BCN_PRBRESP_PROMISC | \
2533 FIF_CONTROL | \
2534 FIF_OTHER_BSS)
2535
f5fc0f86
LC		 2536static void wl1271_op_configure_filter(struct ieee80211_hw *hw,
2537 unsigned int changed,
c87dec9f 2538 unsigned int *total, u64 multicast)
f5fc0f86 2539{
b54853f1 2540 struct wl1271_filter_params *fp = (void *)(unsigned long)multicast;
f5fc0f86 2541 struct wl1271 *wl = hw->priv;
536129c8
EP		 2542 struct ieee80211_vif *vif = wl->vif; /* TODO: get as param */
2543 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
2544
b54853f1 2545 int ret;
f5fc0f86 2546
7d057869
AN		 2547 wl1271_debug(DEBUG_MAC80211, "mac80211 configure filter changed %x"
2548 " total %x", changed, *total);
f5fc0f86 2549
b54853f1
JO		 2550 mutex_lock(&wl->mutex);
2551
2c10bb9c
SD		 2552 *total &= WL1271_SUPPORTED_FILTERS;
2553 changed &= WL1271_SUPPORTED_FILTERS;
2554
2555 if (unlikely(wl->state == WL1271_STATE_OFF))
b54853f1
JO		 2556 goto out;
2557
a620865e 2558 ret = wl1271_ps_elp_wakeup(wl);
b54853f1
JO		 2559 if (ret < 0)
2560 goto out;
2561
536129c8 2562 if (wlvif->bss_type != BSS_TYPE_AP_BSS) {
7d057869
AN		 2563 if (*total & FIF_ALLMULTI)
2564 ret = wl1271_acx_group_address_tbl(wl, false, NULL, 0);
2565 else if (fp)
2566 ret = wl1271_acx_group_address_tbl(wl, fp->enabled,
2567 fp->mc_list,
2568 fp->mc_list_length);
2569 if (ret < 0)
2570 goto out_sleep;
2571 }
f5fc0f86 2572
08c1d1c7
EP		 2573 /*
2574 * the fw doesn't provide an api to configure the filters. instead,
2575 * the filters configuration is based on the active roles / ROC
2576 * state.
2577 */
b54853f1
JO		 2578
2579out_sleep:
2580 wl1271_ps_elp_sleep(wl);
2581
2582out:
2583 mutex_unlock(&wl->mutex);
14b228a0 2584 kfree(fp);
f5fc0f86
LC		 2585}
2586
7f179b46
AN		 2587static int wl1271_record_ap_key(struct wl1271 *wl, u8 id, u8 key_type,
2588 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
2589 u16 tx_seq_16)
2590{
2591 struct wl1271_ap_key *ap_key;
2592 int i;
2593
2594 wl1271_debug(DEBUG_CRYPT, "record ap key id %d", (int)id);
2595
2596 if (key_size > MAX_KEY_SIZE)
2597 return -EINVAL;
2598
2599 /*
2600 * Find next free entry in ap_keys. Also check we are not replacing
2601 * an existing key.
2602 */
2603 for (i = 0; i < MAX_NUM_KEYS; i++) {
2604 if (wl->recorded_ap_keys[i] == NULL)
2605 break;
2606
2607 if (wl->recorded_ap_keys[i]->id == id) {
2608 wl1271_warning("trying to record key replacement");
2609 return -EINVAL;
2610 }
2611 }
2612
2613 if (i == MAX_NUM_KEYS)
2614 return -EBUSY;
2615
2616 ap_key = kzalloc(sizeof(*ap_key), GFP_KERNEL);
2617 if (!ap_key)
2618 return -ENOMEM;
2619
2620 ap_key->id = id;
2621 ap_key->key_type = key_type;
2622 ap_key->key_size = key_size;
2623 memcpy(ap_key->key, key, key_size);
2624 ap_key->hlid = hlid;
2625 ap_key->tx_seq_32 = tx_seq_32;
2626 ap_key->tx_seq_16 = tx_seq_16;
2627
2628 wl->recorded_ap_keys[i] = ap_key;
2629 return 0;
2630}
2631
2632static void wl1271_free_ap_keys(struct wl1271 *wl)
2633{
2634 int i;
2635
2636 for (i = 0; i < MAX_NUM_KEYS; i++) {
2637 kfree(wl->recorded_ap_keys[i]);
2638 wl->recorded_ap_keys[i] = NULL;
2639 }
2640}
2641
2642static int wl1271_ap_init_hwenc(struct wl1271 *wl)
2643{
2644 int i, ret = 0;
2645 struct wl1271_ap_key *key;
2646 bool wep_key_added = false;
2647
2648 for (i = 0; i < MAX_NUM_KEYS; i++) {
7f97b487 2649 u8 hlid;
7f179b46
AN		 2650 if (wl->recorded_ap_keys[i] == NULL)
2651 break;
2652
2653 key = wl->recorded_ap_keys[i];
7f97b487
EP		 2654 hlid = key->hlid;
2655 if (hlid == WL12XX_INVALID_LINK_ID)
2656 hlid = wl->ap_bcast_hlid;
2657
7f179b46
AN		 2658 ret = wl1271_cmd_set_ap_key(wl, KEY_ADD_OR_REPLACE,
2659 key->id, key->key_type,
2660 key->key_size, key->key,
7f97b487 2661 hlid, key->tx_seq_32,
7f179b46
AN		 2662 key->tx_seq_16);
2663 if (ret < 0)
2664 goto out;
2665
2666 if (key->key_type == KEY_WEP)
2667 wep_key_added = true;
2668 }
2669
2670 if (wep_key_added) {
c690ec81 2671 ret = wl12xx_cmd_set_default_wep_key(wl, wl->default_key,
e51ae9be 2672 wl->ap_bcast_hlid);
7f179b46
AN		 2673 if (ret < 0)
2674 goto out;
2675 }
2676
2677out:
2678 wl1271_free_ap_keys(wl);
2679 return ret;
2680}
2681
536129c8
EP		 2682static int wl1271_set_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2683 u16 action, u8 id, u8 key_type,
7f179b46
AN		 2684 u8 key_size, const u8 *key, u32 tx_seq_32,
2685 u16 tx_seq_16, struct ieee80211_sta *sta)
2686{
2687 int ret;
536129c8 2688 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
7f179b46
AN		 2689
2690 if (is_ap) {
2691 struct wl1271_station *wl_sta;
2692 u8 hlid;
2693
2694 if (sta) {
2695 wl_sta = (struct wl1271_station *)sta->drv_priv;
2696 hlid = wl_sta->hlid;
2697 } else {
e51ae9be 2698 hlid = wl->ap_bcast_hlid;
7f179b46
AN		 2699 }
2700
2701 if (!test_bit(WL1271_FLAG_AP_STARTED, &wl->flags)) {
2702 /*
2703 * We do not support removing keys after AP shutdown.
2704 * Pretend we do to make mac80211 happy.
2705 */
2706 if (action != KEY_ADD_OR_REPLACE)
2707 return 0;
2708
2709 ret = wl1271_record_ap_key(wl, id,
2710 key_type, key_size,
2711 key, hlid, tx_seq_32,
2712 tx_seq_16);
2713 } else {
2714 ret = wl1271_cmd_set_ap_key(wl, action,
2715 id, key_type, key_size,
2716 key, hlid, tx_seq_32,
2717 tx_seq_16);
2718 }
2719
2720 if (ret < 0)
2721 return ret;
2722 } else {
2723 const u8 *addr;
2724 static const u8 bcast_addr[ETH_ALEN] = {
2725 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
2726 };
2727
e9eb8cbe
GE		 2728 /*
2729 * A STA set to GEM cipher requires 2 tx spare blocks.
2730 * Return to default value when GEM cipher key is removed
2731 */
2732 if (key_type == KEY_GEM) {
2733 if (action == KEY_ADD_OR_REPLACE)
2734 wl->tx_spare_blocks = 2;
2735 else if (action == KEY_REMOVE)
2736 wl->tx_spare_blocks = TX_HW_BLOCK_SPARE_DEFAULT;
2737 }
2738
7f179b46
AN		 2739 addr = sta ? sta->addr : bcast_addr;
2740
2741 if (is_zero_ether_addr(addr)) {
2742 /* We dont support TX only encryption */
2743 return -EOPNOTSUPP;
2744 }
2745
2746 /* The wl1271 does not allow to remove unicast keys - they
2747 will be cleared automatically on next CMD_JOIN. Ignore the
2748 request silently, as we dont want the mac80211 to emit
2749 an error message. */
2750 if (action == KEY_REMOVE && !is_broadcast_ether_addr(addr))
2751 return 0;
2752
010d3d30
EP		 2753 /* don't remove key if hlid was already deleted */
2754 if (action == KEY_REMOVE &&
2755 wl->sta_hlid == WL12XX_INVALID_LINK_ID)
2756 return 0;
2757
7f179b46
AN		 2758 ret = wl1271_cmd_set_sta_key(wl, action,
2759 id, key_type, key_size,
2760 key, addr, tx_seq_32,
2761 tx_seq_16);
2762 if (ret < 0)
2763 return ret;
2764
2765 /* the default WEP key needs to be configured at least once */
2766 if (key_type == KEY_WEP) {
c690ec81
EP		 2767 ret = wl12xx_cmd_set_default_wep_key(wl,
2768 wl->default_key,
2769 wl->sta_hlid);
7f179b46
AN		 2770 if (ret < 0)
2771 return ret;
2772 }
2773 }
2774
2775 return 0;
2776}
2777
f5fc0f86
LC		 2778static int wl1271_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
2779 struct ieee80211_vif *vif,
2780 struct ieee80211_sta *sta,
2781 struct ieee80211_key_conf *key_conf)
2782{
2783 struct wl1271 *wl = hw->priv;
536129c8 2784 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
f5fc0f86 2785 int ret;
ac4e4ce5
JO		 2786 u32 tx_seq_32 = 0;
2787 u16 tx_seq_16 = 0;
f5fc0f86
LC		 2788 u8 key_type;
2789
f5fc0f86
LC		 2790 wl1271_debug(DEBUG_MAC80211, "mac80211 set key");
2791
7f179b46 2792 wl1271_debug(DEBUG_CRYPT, "CMD: 0x%x sta: %p", cmd, sta);
f5fc0f86 2793 wl1271_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x",
97359d12 2794 key_conf->cipher, key_conf->keyidx,
f5fc0f86
LC		 2795 key_conf->keylen, key_conf->flags);
2796 wl1271_dump(DEBUG_CRYPT, "KEY: ", key_conf->key, key_conf->keylen);
2797
f5fc0f86
LC		 2798 mutex_lock(&wl->mutex);
2799
f8d9802f
JO		 2800 if (unlikely(wl->state == WL1271_STATE_OFF)) {
2801 ret = -EAGAIN;
2802 goto out_unlock;
2803 }
2804
a620865e 2805 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 2806 if (ret < 0)
2807 goto out_unlock;
2808
97359d12
JB		 2809 switch (key_conf->cipher) {
2810 case WLAN_CIPHER_SUITE_WEP40:
2811 case WLAN_CIPHER_SUITE_WEP104:
f5fc0f86
LC		 2812 key_type = KEY_WEP;
2813
2814 key_conf->hw_key_idx = key_conf->keyidx;
2815 break;
97359d12 2816 case WLAN_CIPHER_SUITE_TKIP:
f5fc0f86
LC		 2817 key_type = KEY_TKIP;
2818
2819 key_conf->hw_key_idx = key_conf->keyidx;
04e36fc5
JO		 2820 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
2821 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
f5fc0f86 2822 break;
97359d12 2823 case WLAN_CIPHER_SUITE_CCMP:
f5fc0f86
LC		 2824 key_type = KEY_AES;
2825
2826 key_conf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
04e36fc5
JO		 2827 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
2828 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
f5fc0f86 2829 break;
7a55724e
JO		 2830 case WL1271_CIPHER_SUITE_GEM:
2831 key_type = KEY_GEM;
2832 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
2833 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
2834 break;
f5fc0f86 2835 default:
97359d12 2836 wl1271_error("Unknown key algo 0x%x", key_conf->cipher);
f5fc0f86
LC		 2837
2838 ret = -EOPNOTSUPP;
2839 goto out_sleep;
2840 }
2841
2842 switch (cmd) {
2843 case SET_KEY:
536129c8 2844 ret = wl1271_set_key(wl, wlvif, KEY_ADD_OR_REPLACE,
7f179b46
AN		 2845 key_conf->keyidx, key_type,
2846 key_conf->keylen, key_conf->key,
2847 tx_seq_32, tx_seq_16, sta);
f5fc0f86
LC		 2848 if (ret < 0) {
2849 wl1271_error("Could not add or replace key");
2850 goto out_sleep;
2851 }
2852 break;
2853
2854 case DISABLE_KEY:
536129c8 2855 ret = wl1271_set_key(wl, wlvif, KEY_REMOVE,
7f179b46
AN		 2856 key_conf->keyidx, key_type,
2857 key_conf->keylen, key_conf->key,
2858 0, 0, sta);
f5fc0f86
LC		 2859 if (ret < 0) {
2860 wl1271_error("Could not remove key");
2861 goto out_sleep;
2862 }
2863 break;
2864
2865 default:
2866 wl1271_error("Unsupported key cmd 0x%x", cmd);
2867 ret = -EOPNOTSUPP;
f5fc0f86
LC		 2868 break;
2869 }
2870
2871out_sleep:
2872 wl1271_ps_elp_sleep(wl);
2873
2874out_unlock:
2875 mutex_unlock(&wl->mutex);
2876
f5fc0f86
LC		 2877 return ret;
2878}
2879
2880static int wl1271_op_hw_scan(struct ieee80211_hw *hw,
a060bbfe 2881 struct ieee80211_vif *vif,
f5fc0f86
LC		 2882 struct cfg80211_scan_request *req)
2883{
2884 struct wl1271 *wl = hw->priv;
2885 int ret;
2886 u8 *ssid = NULL;
abb0b3bf 2887 size_t len = 0;
f5fc0f86
LC		 2888
2889 wl1271_debug(DEBUG_MAC80211, "mac80211 hw scan");
2890
2891 if (req->n_ssids) {
2892 ssid = req->ssids[0].ssid;
abb0b3bf 2893 len = req->ssids[0].ssid_len;
f5fc0f86
LC		 2894 }
2895
2896 mutex_lock(&wl->mutex);
2897
b739a42c
JO		 2898 if (wl->state == WL1271_STATE_OFF) {
2899 /*
2900 * We cannot return -EBUSY here because cfg80211 will expect
2901 * a call to ieee80211_scan_completed if we do - in this case
2902 * there won't be any call.
2903 */
2904 ret = -EAGAIN;
2905 goto out;
2906 }
2907
a620865e 2908 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 2909 if (ret < 0)
2910 goto out;
2911
251c177f
EP		 2912 /* cancel ROC before scanning */
2913 if (wl12xx_is_roc(wl)) {
2914 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags)) {
2915 /* don't allow scanning right now */
2916 ret = -EBUSY;
2917 goto out_sleep;
2918 }
2919 wl12xx_croc(wl, wl->dev_role_id);
2920 wl12xx_cmd_role_stop_dev(wl);
2921 }
f5fc0f86 2922
784f694d 2923 ret = wl1271_scan(hw->priv, vif, ssid, len, req);
251c177f 2924out_sleep:
f5fc0f86 2925 wl1271_ps_elp_sleep(wl);
f5fc0f86
LC		 2926out:
2927 mutex_unlock(&wl->mutex);
2928
2929 return ret;
2930}
2931
73ecce31
EP		 2932static void wl1271_op_cancel_hw_scan(struct ieee80211_hw *hw,
2933 struct ieee80211_vif *vif)
2934{
2935 struct wl1271 *wl = hw->priv;
2936 int ret;
2937
2938 wl1271_debug(DEBUG_MAC80211, "mac80211 cancel hw scan");
2939
2940 mutex_lock(&wl->mutex);
2941
2942 if (wl->state == WL1271_STATE_OFF)
2943 goto out;
2944
2945 if (wl->scan.state == WL1271_SCAN_STATE_IDLE)
2946 goto out;
2947
2948 ret = wl1271_ps_elp_wakeup(wl);
2949 if (ret < 0)
2950 goto out;
2951
2952 if (wl->scan.state != WL1271_SCAN_STATE_DONE) {
2953 ret = wl1271_scan_stop(wl);
2954 if (ret < 0)
2955 goto out_sleep;
2956 }
2957 wl->scan.state = WL1271_SCAN_STATE_IDLE;
2958 memset(wl->scan.scanned_ch, 0, sizeof(wl->scan.scanned_ch));
784f694d 2959 wl->scan_vif = NULL;
73ecce31
EP		 2960 wl->scan.req = NULL;
2961 ieee80211_scan_completed(wl->hw, true);
2962
2963out_sleep:
2964 wl1271_ps_elp_sleep(wl);
2965out:
2966 mutex_unlock(&wl->mutex);
2967
2968 cancel_delayed_work_sync(&wl->scan_complete_work);
2969}
2970
33c2c06c
LC		 2971static int wl1271_op_sched_scan_start(struct ieee80211_hw *hw,
2972 struct ieee80211_vif *vif,
2973 struct cfg80211_sched_scan_request *req,
2974 struct ieee80211_sched_scan_ies *ies)
2975{
2976 struct wl1271 *wl = hw->priv;
536129c8 2977 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
33c2c06c
LC		 2978 int ret;
2979
2980 wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_start");
2981
2982 mutex_lock(&wl->mutex);
2983
2984 ret = wl1271_ps_elp_wakeup(wl);
2985 if (ret < 0)
2986 goto out;
2987
536129c8 2988 ret = wl1271_scan_sched_scan_config(wl, wlvif, req, ies);
33c2c06c
LC		 2989 if (ret < 0)
2990 goto out_sleep;
2991
536129c8 2992 ret = wl1271_scan_sched_scan_start(wl, wlvif);
33c2c06c
LC		 2993 if (ret < 0)
2994 goto out_sleep;
2995
2996 wl->sched_scanning = true;
2997
2998out_sleep:
2999 wl1271_ps_elp_sleep(wl);
3000out:
3001 mutex_unlock(&wl->mutex);
3002 return ret;
3003}
3004
3005static void wl1271_op_sched_scan_stop(struct ieee80211_hw *hw,
3006 struct ieee80211_vif *vif)
3007{
3008 struct wl1271 *wl = hw->priv;
3009 int ret;
3010
3011 wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_stop");
3012
3013 mutex_lock(&wl->mutex);
3014
3015 ret = wl1271_ps_elp_wakeup(wl);
3016 if (ret < 0)
3017 goto out;
3018
3019 wl1271_scan_sched_scan_stop(wl);
3020
3021 wl1271_ps_elp_sleep(wl);
3022out:
3023 mutex_unlock(&wl->mutex);
3024}
3025
68d069c4
AN		 3026static int wl1271_op_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
3027{
3028 struct wl1271 *wl = hw->priv;
3029 int ret = 0;
3030
3031 mutex_lock(&wl->mutex);
3032
3033 if (unlikely(wl->state == WL1271_STATE_OFF)) {
3034 ret = -EAGAIN;
3035 goto out;
3036 }
3037
a620865e 3038 ret = wl1271_ps_elp_wakeup(wl);
68d069c4
AN		 3039 if (ret < 0)
3040 goto out;
3041
5f704d18 3042 ret = wl1271_acx_frag_threshold(wl, value);
68d069c4
AN		 3043 if (ret < 0)
3044 wl1271_warning("wl1271_op_set_frag_threshold failed: %d", ret);
3045
3046 wl1271_ps_elp_sleep(wl);
3047
3048out:
3049 mutex_unlock(&wl->mutex);
3050
3051 return ret;
3052}
3053
f5fc0f86
LC		 3054static int wl1271_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
3055{
3056 struct wl1271 *wl = hw->priv;
aecb0565 3057 int ret = 0;
f5fc0f86
LC		 3058
3059 mutex_lock(&wl->mutex);
3060
f8d9802f
JO		 3061 if (unlikely(wl->state == WL1271_STATE_OFF)) {
3062 ret = -EAGAIN;
aecb0565 3063 goto out;
f8d9802f 3064 }
aecb0565 3065
a620865e 3066 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 3067 if (ret < 0)
3068 goto out;
3069
5f704d18 3070 ret = wl1271_acx_rts_threshold(wl, value);
f5fc0f86
LC		 3071 if (ret < 0)
3072 wl1271_warning("wl1271_op_set_rts_threshold failed: %d", ret);
3073
3074 wl1271_ps_elp_sleep(wl);
3075
3076out:
3077 mutex_unlock(&wl->mutex);
3078
3079 return ret;
3080}
3081
e78a287a 3082static int wl1271_ssid_set(struct wl1271 *wl, struct sk_buff *skb,
2f6724b2 3083 int offset)
30240fc7 3084{
889cb360
EP		 3085 u8 ssid_len;
3086 const u8 *ptr = cfg80211_find_ie(WLAN_EID_SSID, skb->data + offset,
3087 skb->len - offset);
30240fc7 3088
889cb360
EP		 3089 if (!ptr) {
3090 wl1271_error("No SSID in IEs!");
3091 return -ENOENT;
3092 }
3093
3094 ssid_len = ptr[1];
3095 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
3096 wl1271_error("SSID is too long!");
3097 return -EINVAL;
30240fc7 3098 }
e78a287a 3099
889cb360
EP		 3100 wl->ssid_len = ssid_len;
3101 memcpy(wl->ssid, ptr+2, ssid_len);
3102 return 0;
30240fc7
JO		 3103}
3104
d48055d9
EP		 3105static void wl12xx_remove_ie(struct sk_buff *skb, u8 eid, int ieoffset)
3106{
3107 int len;
3108 const u8 *next, *end = skb->data + skb->len;
3109 u8 *ie = (u8 *)cfg80211_find_ie(eid, skb->data + ieoffset,
3110 skb->len - ieoffset);
3111 if (!ie)
3112 return;
3113 len = ie[1] + 2;
3114 next = ie + len;
3115 memmove(ie, next, end - next);
3116 skb_trim(skb, skb->len - len);
3117}
3118
26b4bf2e
EP		 3119static void wl12xx_remove_vendor_ie(struct sk_buff *skb,
3120 unsigned int oui, u8 oui_type,
3121 int ieoffset)
3122{
3123 int len;
3124 const u8 *next, *end = skb->data + skb->len;
3125 u8 *ie = (u8 *)cfg80211_find_vendor_ie(oui, oui_type,
3126 skb->data + ieoffset,
3127 skb->len - ieoffset);
3128 if (!ie)
3129 return;
3130 len = ie[1] + 2;
3131 next = ie + len;
3132 memmove(ie, next, end - next);
3133 skb_trim(skb, skb->len - len);
3134}
3135
68eaaf6e
AN		 3136static int wl1271_ap_set_probe_resp_tmpl(struct wl1271 *wl,
3137 u8 *probe_rsp_data,
3138 size_t probe_rsp_len,
3139 u32 rates)
3140{
3141 struct ieee80211_bss_conf *bss_conf = &wl->vif->bss_conf;
3142 u8 probe_rsp_templ[WL1271_CMD_TEMPL_MAX_SIZE];
3143 int ssid_ie_offset, ie_offset, templ_len;
3144 const u8 *ptr;
3145
3146 /* no need to change probe response if the SSID is set correctly */
3147 if (wl->ssid_len > 0)
3148 return wl1271_cmd_template_set(wl,
3149 CMD_TEMPL_AP_PROBE_RESPONSE,
3150 probe_rsp_data,
3151 probe_rsp_len, 0,
3152 rates);
3153
3154 if (probe_rsp_len + bss_conf->ssid_len > WL1271_CMD_TEMPL_MAX_SIZE) {
3155 wl1271_error("probe_rsp template too big");
3156 return -EINVAL;
3157 }
3158
3159 /* start searching from IE offset */
3160 ie_offset = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
3161
3162 ptr = cfg80211_find_ie(WLAN_EID_SSID, probe_rsp_data + ie_offset,
3163 probe_rsp_len - ie_offset);
3164 if (!ptr) {
3165 wl1271_error("No SSID in beacon!");
3166 return -EINVAL;
3167 }
3168
3169 ssid_ie_offset = ptr - probe_rsp_data;
3170 ptr += (ptr[1] + 2);
3171
3172 memcpy(probe_rsp_templ, probe_rsp_data, ssid_ie_offset);
3173
3174 /* insert SSID from bss_conf */
3175 probe_rsp_templ[ssid_ie_offset] = WLAN_EID_SSID;
3176 probe_rsp_templ[ssid_ie_offset + 1] = bss_conf->ssid_len;
3177 memcpy(probe_rsp_templ + ssid_ie_offset + 2,
3178 bss_conf->ssid, bss_conf->ssid_len);
3179 templ_len = ssid_ie_offset + 2 + bss_conf->ssid_len;
3180
3181 memcpy(probe_rsp_templ + ssid_ie_offset + 2 + bss_conf->ssid_len,
3182 ptr, probe_rsp_len - (ptr - probe_rsp_data));
3183 templ_len += probe_rsp_len - (ptr - probe_rsp_data);
3184
3185 return wl1271_cmd_template_set(wl,
3186 CMD_TEMPL_AP_PROBE_RESPONSE,
3187 probe_rsp_templ,
3188 templ_len, 0,
3189 rates);
3190}
3191
e78a287a 3192static int wl1271_bss_erp_info_changed(struct wl1271 *wl,
f5fc0f86
LC		 3193 struct ieee80211_bss_conf *bss_conf,
3194 u32 changed)
3195{
e78a287a 3196 int ret = 0;
f5fc0f86 3197
e78a287a
AN		 3198 if (changed & BSS_CHANGED_ERP_SLOT) {
3199 if (bss_conf->use_short_slot)
3200 ret = wl1271_acx_slot(wl, SLOT_TIME_SHORT);
3201 else
3202 ret = wl1271_acx_slot(wl, SLOT_TIME_LONG);
3203 if (ret < 0) {
3204 wl1271_warning("Set slot time failed %d", ret);
3205 goto out;
3206 }
3207 }
f5fc0f86 3208
e78a287a
AN		 3209 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
3210 if (bss_conf->use_short_preamble)
3211 wl1271_acx_set_preamble(wl, ACX_PREAMBLE_SHORT);
3212 else
3213 wl1271_acx_set_preamble(wl, ACX_PREAMBLE_LONG);
3214 }
f5fc0f86 3215
e78a287a
AN		 3216 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
3217 if (bss_conf->use_cts_prot)
3218 ret = wl1271_acx_cts_protect(wl, CTSPROTECT_ENABLE);
3219 else
3220 ret = wl1271_acx_cts_protect(wl, CTSPROTECT_DISABLE);
3221 if (ret < 0) {
3222 wl1271_warning("Set ctsprotect failed %d", ret);
3223 goto out;
3224 }
3225 }
f8d9802f 3226
e78a287a
AN		 3227out:
3228 return ret;
3229}
f5fc0f86 3230
e78a287a
AN		 3231static int wl1271_bss_beacon_info_changed(struct wl1271 *wl,
3232 struct ieee80211_vif *vif,
3233 struct ieee80211_bss_conf *bss_conf,
3234 u32 changed)
3235{
87fbcb0f 3236 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
536129c8 3237 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
e78a287a
AN		 3238 int ret = 0;
3239
3240 if ((changed & BSS_CHANGED_BEACON_INT)) {
3241 wl1271_debug(DEBUG_MASTER, "beacon interval updated: %d",
60e84c2e
JO		 3242 bss_conf->beacon_int);
3243
3244 wl->beacon_int = bss_conf->beacon_int;
60e84c2e
JO		 3245 }
3246
e78a287a
AN		 3247 if ((changed & BSS_CHANGED_BEACON)) {
3248 struct ieee80211_hdr *hdr;
af7fbb28 3249 u32 min_rate;
e78a287a
AN		 3250 int ieoffset = offsetof(struct ieee80211_mgmt,
3251 u.beacon.variable);
3252 struct sk_buff *beacon = ieee80211_beacon_get(wl->hw, vif);
3253 u16 tmpl_id;
3254
3255 if (!beacon)
3256 goto out;
3257
3258 wl1271_debug(DEBUG_MASTER, "beacon updated");
3259
3260 ret = wl1271_ssid_set(wl, beacon, ieoffset);
3261 if (ret < 0) {
3262 dev_kfree_skb(beacon);
3263 goto out;
3264 }
87fbcb0f 3265 min_rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
e78a287a
AN		 3266 tmpl_id = is_ap ? CMD_TEMPL_AP_BEACON :
3267 CMD_TEMPL_BEACON;
3268 ret = wl1271_cmd_template_set(wl, tmpl_id,
3269 beacon->data,
3270 beacon->len, 0,
af7fbb28 3271 min_rate);
e78a287a
AN		 3272 if (ret < 0) {
3273 dev_kfree_skb(beacon);
3274 goto out;
3275 }
3276
d48055d9
EP		 3277 /* remove TIM ie from probe response */
3278 wl12xx_remove_ie(beacon, WLAN_EID_TIM, ieoffset);
3279
26b4bf2e
EP		 3280 /*
3281 * remove p2p ie from probe response.
3282 * the fw reponds to probe requests that don't include
3283 * the p2p ie. probe requests with p2p ie will be passed,
3284 * and will be responded by the supplicant (the spec
3285 * forbids including the p2p ie when responding to probe
3286 * requests that didn't include it).
3287 */
3288 wl12xx_remove_vendor_ie(beacon, WLAN_OUI_WFA,
3289 WLAN_OUI_TYPE_WFA_P2P, ieoffset);
3290
e78a287a
AN		 3291 hdr = (struct ieee80211_hdr *) beacon->data;
3292 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3293 IEEE80211_STYPE_PROBE_RESP);
68eaaf6e
AN		 3294 if (is_ap)
3295 ret = wl1271_ap_set_probe_resp_tmpl(wl,
3296 beacon->data,
3297 beacon->len,
af7fbb28 3298 min_rate);
68eaaf6e
AN		 3299 else
3300 ret = wl1271_cmd_template_set(wl,
3301 CMD_TEMPL_PROBE_RESPONSE,
3302 beacon->data,
3303 beacon->len, 0,
af7fbb28 3304 min_rate);
e78a287a
AN		 3305 dev_kfree_skb(beacon);
3306 if (ret < 0)
3307 goto out;
3308 }
3309
3310out:
3311 return ret;
3312}
3313
3314/* AP mode changes */
3315static void wl1271_bss_info_changed_ap(struct wl1271 *wl,
3316 struct ieee80211_vif *vif,
3317 struct ieee80211_bss_conf *bss_conf,
3318 u32 changed)
3319{
87fbcb0f 3320 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
e78a287a 3321 int ret = 0;
e0d8bbf0 3322
e78a287a
AN		 3323 if ((changed & BSS_CHANGED_BASIC_RATES)) {
3324 u32 rates = bss_conf->basic_rates;
5da11dcd 3325
87fbcb0f 3326 wlvif->basic_rate_set = wl1271_tx_enabled_rates_get(wl, rates,
af7fbb28 3327 wl->band);
d2d66c56 3328 wlvif->basic_rate = wl1271_tx_min_rate_get(wl,
87fbcb0f 3329 wlvif->basic_rate_set);
70f47424 3330
87fbcb0f 3331 ret = wl1271_init_ap_rates(wl, wlvif);
e78a287a 3332 if (ret < 0) {
70f47424 3333 wl1271_error("AP rate policy change failed %d", ret);
e78a287a
AN		 3334 goto out;
3335 }
c45a85b5 3336
784f694d 3337 ret = wl1271_ap_init_templates(wl, vif);
c45a85b5
AN		 3338 if (ret < 0)
3339 goto out;
e78a287a 3340 }
2f6724b2 3341
e78a287a
AN		 3342 ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf, changed);
3343 if (ret < 0)
3344 goto out;
30240fc7 3345
e78a287a
AN		 3346 if ((changed & BSS_CHANGED_BEACON_ENABLED)) {
3347 if (bss_conf->enable_beacon) {
3348 if (!test_bit(WL1271_FLAG_AP_STARTED, &wl->flags)) {
87fbcb0f 3349 ret = wl12xx_cmd_role_start_ap(wl, wlvif);
e78a287a
AN		 3350 if (ret < 0)
3351 goto out;
e0d8bbf0 3352
7f179b46
AN		 3353 ret = wl1271_ap_init_hwenc(wl);
3354 if (ret < 0)
3355 goto out;
cf42039f
AN		 3356
3357 set_bit(WL1271_FLAG_AP_STARTED, &wl->flags);
3358 wl1271_debug(DEBUG_AP, "started AP");
e0d8bbf0 3359 }
e78a287a
AN		 3360 } else {
3361 if (test_bit(WL1271_FLAG_AP_STARTED, &wl->flags)) {
c690ec81 3362 ret = wl12xx_cmd_role_stop_ap(wl);
e78a287a
AN		 3363 if (ret < 0)
3364 goto out;
e0d8bbf0 3365
e78a287a
AN		 3366 clear_bit(WL1271_FLAG_AP_STARTED, &wl->flags);
3367 wl1271_debug(DEBUG_AP, "stopped AP");
3368 }
3369 }
3370 }
e0d8bbf0 3371
e78a287a
AN		 3372 ret = wl1271_bss_erp_info_changed(wl, bss_conf, changed);
3373 if (ret < 0)
3374 goto out;
0b932ab9
AN		 3375
3376 /* Handle HT information change */
3377 if ((changed & BSS_CHANGED_HT) &&
3378 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
3379 ret = wl1271_acx_set_ht_information(wl,
3380 bss_conf->ht_operation_mode);
3381 if (ret < 0) {
3382 wl1271_warning("Set ht information failed %d", ret);
3383 goto out;
3384 }
3385 }
3386
e78a287a
AN		 3387out:
3388 return;
3389}
8bf29b0e 3390
e78a287a
AN		 3391/* STA/IBSS mode changes */
3392static void wl1271_bss_info_changed_sta(struct wl1271 *wl,
3393 struct ieee80211_vif *vif,
3394 struct ieee80211_bss_conf *bss_conf,
3395 u32 changed)
3396{
87fbcb0f 3397 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
e78a287a 3398 bool do_join = false, set_assoc = false;
536129c8 3399 bool is_ibss = (wlvif->bss_type == BSS_TYPE_IBSS);
227e81e1 3400 bool ibss_joined = false;
72c2d9e5 3401 u32 sta_rate_set = 0;
e78a287a 3402 int ret;
2d6e4e76 3403 struct ieee80211_sta *sta;
a100885d
AN		 3404 bool sta_exists = false;
3405 struct ieee80211_sta_ht_cap sta_ht_cap;
e78a287a
AN		 3406
3407 if (is_ibss) {
3408 ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf,
3409 changed);
3410 if (ret < 0)
3411 goto out;
e0d8bbf0
JO		 3412 }
3413
227e81e1
EP		 3414 if (changed & BSS_CHANGED_IBSS) {
3415 if (bss_conf->ibss_joined) {
3416 set_bit(WL1271_FLAG_IBSS_JOINED, &wl->flags);
3417 ibss_joined = true;
3418 } else {
3419 if (test_and_clear_bit(WL1271_FLAG_IBSS_JOINED,
3420 &wl->flags)) {
3421 wl1271_unjoin(wl);
3422 wl12xx_cmd_role_start_dev(wl);
3423 wl12xx_roc(wl, wl->dev_role_id);
3424 }
3425 }
3426 }
3427
3428 if ((changed & BSS_CHANGED_BEACON_INT) && ibss_joined)
e78a287a
AN		 3429 do_join = true;
3430
3431 /* Need to update the SSID (for filtering etc) */
227e81e1 3432 if ((changed & BSS_CHANGED_BEACON) && ibss_joined)
e78a287a
AN		 3433 do_join = true;
3434
227e81e1 3435 if ((changed & BSS_CHANGED_BEACON_ENABLED) && ibss_joined) {
5da11dcd
JO		 3436 wl1271_debug(DEBUG_ADHOC, "ad-hoc beaconing: %s",
3437 bss_conf->enable_beacon ? "enabled" : "disabled");
3438
5da11dcd
JO		 3439 do_join = true;
3440 }
3441
e78a287a 3442 if ((changed & BSS_CHANGED_CQM)) {
00236aed
JO		 3443 bool enable = false;
3444 if (bss_conf->cqm_rssi_thold)
3445 enable = true;
3446 ret = wl1271_acx_rssi_snr_trigger(wl, enable,
3447 bss_conf->cqm_rssi_thold,
3448 bss_conf->cqm_rssi_hyst);
3449 if (ret < 0)
3450 goto out;
3451 wl->rssi_thold = bss_conf->cqm_rssi_thold;
3452 }
3453
cdf09495
EP		 3454 if (changed & BSS_CHANGED_BSSID)
3455 if (!is_zero_ether_addr(bss_conf->bssid)) {
d2d66c56 3456 ret = wl12xx_cmd_build_null_data(wl, wlvif);
fa287b8f
EP		 3457 if (ret < 0)
3458 goto out;
30240fc7 3459
784f694d 3460 ret = wl1271_build_qos_null_data(wl, vif);
fa287b8f
EP		 3461 if (ret < 0)
3462 goto out;
30240fc7 3463
fa287b8f
EP		 3464 /* Need to update the BSSID (for filtering etc) */
3465 do_join = true;
3466 }
30240fc7 3467
0f9c8250
AN		 3468 if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_HT)) {
3469 rcu_read_lock();
3470 sta = ieee80211_find_sta(vif, bss_conf->bssid);
3471 if (!sta)
3472 goto sta_not_found;
3473
72c2d9e5
EP		 3474 /* save the supp_rates of the ap */
3475 sta_rate_set = sta->supp_rates[wl->hw->conf.channel->band];
3476 if (sta->ht_cap.ht_supported)
3477 sta_rate_set |=
3478 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET);
a100885d
AN		 3479 sta_ht_cap = sta->ht_cap;
3480 sta_exists = true;
72c2d9e5 3481
0f9c8250
AN		 3482sta_not_found:
3483 rcu_read_unlock();
72c2d9e5 3484 }
72c2d9e5 3485
e78a287a 3486 if ((changed & BSS_CHANGED_ASSOC)) {
f5fc0f86 3487 if (bss_conf->assoc) {
ebba60c6 3488 u32 rates;
2f6724b2 3489 int ieoffset;
f5fc0f86 3490 wl->aid = bss_conf->aid;
69e5434c 3491 set_assoc = true;
f5fc0f86 3492
90494a90
JO		 3493 wl->ps_poll_failures = 0;
3494
ebba60c6
JO		 3495 /*
3496 * use basic rates from AP, and determine lowest rate
3497 * to use with control frames.
3498 */
3499 rates = bss_conf->basic_rates;
87fbcb0f 3500 wlvif->basic_rate_set =
af7fbb28
EP		 3501 wl1271_tx_enabled_rates_get(wl, rates,
3502 wl->band);
d2d66c56 3503 wlvif->basic_rate =
87fbcb0f
EP		 3504 wl1271_tx_min_rate_get(wl,
3505 wlvif->basic_rate_set);
72c2d9e5 3506 if (sta_rate_set)
30d0c8fd
EP		 3507 wlvif->rate_set =
3508 wl1271_tx_enabled_rates_get(wl,
af7fbb28
EP		 3509 sta_rate_set,
3510 wl->band);
30d0c8fd 3511 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
ebba60c6 3512 if (ret < 0)
e78a287a 3513 goto out;
ebba60c6 3514
ae751bab
LC		 3515 /*
3516 * with wl1271, we don't need to update the
3517 * beacon_int and dtim_period, because the firmware
3518 * updates it by itself when the first beacon is
3519 * received after a join.
3520 */
87fbcb0f 3521 ret = wl1271_cmd_build_ps_poll(wl, wlvif, wl->aid);
f5fc0f86 3522 if (ret < 0)
e78a287a 3523 goto out;
f5fc0f86 3524
c2b2d99b 3525 /*
2f6724b2 3526 * Get a template for hardware connection maintenance
c2b2d99b 3527 */
2f6724b2
JO		 3528 dev_kfree_skb(wl->probereq);
3529 wl->probereq = wl1271_cmd_build_ap_probe_req(wl, NULL);
3530 ieoffset = offsetof(struct ieee80211_mgmt,
3531 u.probe_req.variable);
3532 wl1271_ssid_set(wl, wl->probereq, ieoffset);
c2b2d99b 3533
6ccbb92e
JO		 3534 /* enable the connection monitoring feature */
3535 ret = wl1271_acx_conn_monit_params(wl, true);
f5fc0f86 3536 if (ret < 0)
e78a287a 3537 goto out;
d94cd297
JO		 3538 } else {
3539 /* use defaults when not associated */
30df14d0
EP		 3540 bool was_assoc =
3541 !!test_and_clear_bit(WL1271_FLAG_STA_ASSOCIATED,
3542 &wl->flags);
251c177f
EP		 3543 bool was_ifup =
3544 !!test_and_clear_bit(WL1271_FLAG_STA_STATE_SENT,
3545 &wl->flags);
d94cd297 3546 wl->aid = 0;
6ccbb92e 3547
2f6724b2
JO		 3548 /* free probe-request template */
3549 dev_kfree_skb(wl->probereq);
3550 wl->probereq = NULL;
3551
8d2ef7bd 3552 /* re-enable dynamic ps - just in case */
f532be6d 3553 ieee80211_enable_dyn_ps(wl->vif);
8d2ef7bd 3554
ebba60c6 3555 /* revert back to minimum rates for the current band */
87fbcb0f 3556 wl1271_set_band_rate(wl, wlvif);
d2d66c56 3557 wlvif->basic_rate =
87fbcb0f
EP		 3558 wl1271_tx_min_rate_get(wl,
3559 wlvif->basic_rate_set);
30d0c8fd 3560 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
ebba60c6 3561 if (ret < 0)
e78a287a 3562 goto out;
ebba60c6 3563
6ccbb92e
JO		 3564 /* disable connection monitor features */
3565 ret = wl1271_acx_conn_monit_params(wl, false);
c1899554
JO		 3566
3567 /* Disable the keep-alive feature */
3568 ret = wl1271_acx_keep_alive_mode(wl, false);
6ccbb92e 3569 if (ret < 0)
e78a287a 3570 goto out;
b84a7d3d
JO		 3571
3572 /* restore the bssid filter and go to dummy bssid */
30df14d0 3573 if (was_assoc) {
251c177f
EP		 3574 u32 conf_flags = wl->hw->conf.flags;
3575 /*
3576 * we might have to disable roc, if there was
3577 * no IF_OPER_UP notification.
3578 */
3579 if (!was_ifup) {
3580 ret = wl12xx_croc(wl, wl->role_id);
3581 if (ret < 0)
3582 goto out;
3583 }
3584 /*
3585 * (we also need to disable roc in case of
3586 * roaming on the same channel. until we will
3587 * have a better flow...)
3588 */
3589 if (test_bit(wl->dev_role_id, wl->roc_map)) {
3590 ret = wl12xx_croc(wl, wl->dev_role_id);
3591 if (ret < 0)
3592 goto out;
3593 }
3594
30df14d0 3595 wl1271_unjoin(wl);
251c177f
EP		 3596 if (!(conf_flags & IEEE80211_CONF_IDLE)) {
3597 wl12xx_cmd_role_start_dev(wl);
3598 wl12xx_roc(wl, wl->dev_role_id);
3599 }
30df14d0 3600 }
f5fc0f86 3601 }
f5fc0f86
LC		 3602 }
3603
d192d268
EP		 3604 if (changed & BSS_CHANGED_IBSS) {
3605 wl1271_debug(DEBUG_ADHOC, "ibss_joined: %d",
3606 bss_conf->ibss_joined);
3607
3608 if (bss_conf->ibss_joined) {
3609 u32 rates = bss_conf->basic_rates;
87fbcb0f 3610 wlvif->basic_rate_set =
af7fbb28
EP		 3611 wl1271_tx_enabled_rates_get(wl, rates,
3612 wl->band);
d2d66c56 3613 wlvif->basic_rate =
87fbcb0f
EP		 3614 wl1271_tx_min_rate_get(wl,
3615 wlvif->basic_rate_set);
d192d268 3616
06b660e1 3617 /* by default, use 11b + OFDM rates */
30d0c8fd
EP		 3618 wlvif->rate_set = CONF_TX_IBSS_DEFAULT_RATES;
3619 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
d192d268
EP		 3620 if (ret < 0)
3621 goto out;
3622 }
3623 }
3624
e78a287a
AN		 3625 ret = wl1271_bss_erp_info_changed(wl, bss_conf, changed);
3626 if (ret < 0)
3627 goto out;
f5fc0f86 3628
ca52a5eb
JO		 3629 if (changed & BSS_CHANGED_ARP_FILTER) {
3630 __be32 addr = bss_conf->arp_addr_list[0];
536129c8 3631 WARN_ON(wlvif->bss_type != BSS_TYPE_STA_BSS);
ca52a5eb 3632
c5312772
EP		 3633 if (bss_conf->arp_addr_cnt == 1 &&
3634 bss_conf->arp_filter_enabled) {
3635 /*
3636 * The template should have been configured only upon
3637 * association. however, it seems that the correct ip
3638 * isn't being set (when sending), so we have to
3639 * reconfigure the template upon every ip change.
3640 */
d2d66c56 3641 ret = wl1271_cmd_build_arp_rsp(wl, wlvif, addr);
c5312772
EP		 3642 if (ret < 0) {
3643 wl1271_warning("build arp rsp failed: %d", ret);
e78a287a 3644 goto out;
c5312772
EP		 3645 }
3646
3647 ret = wl1271_acx_arp_ip_filter(wl,
e5e2f24b 3648 ACX_ARP_FILTER_ARP_FILTERING,
c5312772
EP		 3649 addr);
3650 } else
3651 ret = wl1271_acx_arp_ip_filter(wl, 0, addr);
ca52a5eb
JO		 3652
3653 if (ret < 0)
e78a287a 3654 goto out;
ca52a5eb
JO		 3655 }
3656
8bf29b0e 3657 if (do_join) {
87fbcb0f 3658 ret = wl1271_join(wl, wlvif, set_assoc);
8bf29b0e
JO		 3659 if (ret < 0) {
3660 wl1271_warning("cmd join failed %d", ret);
e78a287a 3661 goto out;
8bf29b0e 3662 }
251c177f
EP		 3663
3664 /* ROC until connected (after EAPOL exchange) */
3665 if (!is_ibss) {
3666 ret = wl12xx_roc(wl, wl->role_id);
3667 if (ret < 0)
3668 goto out;
3669
3670 wl1271_check_operstate(wl,
3671 ieee80211_get_operstate(vif));
3672 }
3673 /*
3674 * stop device role if started (we might already be in
3675 * STA role). TODO: make it better.
3676 */
3677 if (wl->dev_role_id != WL12XX_INVALID_ROLE_ID) {
3678 ret = wl12xx_croc(wl, wl->dev_role_id);
3679 if (ret < 0)
3680 goto out;
3681
3682 ret = wl12xx_cmd_role_stop_dev(wl);
3683 if (ret < 0)
3684 goto out;
3685 }
05dba355
EP		 3686
3687 /* If we want to go in PSM but we're not there yet */
3688 if (test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags) &&
3689 !test_bit(WL1271_FLAG_PSM, &wl->flags)) {
3690 enum wl1271_cmd_ps_mode mode;
3691
3692 mode = STATION_POWER_SAVE_MODE;
3693 ret = wl1271_ps_set_mode(wl, mode,
d2d66c56 3694 wlvif->basic_rate,
05dba355
EP		 3695 true);
3696 if (ret < 0)
3697 goto out;
3698 }
c1899554
JO		 3699 }
3700
0b932ab9 3701 /* Handle new association with HT. Do this after join. */
0f9c8250
AN		 3702 if (sta_exists) {
3703 if ((changed & BSS_CHANGED_HT) &&
3704 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
0b932ab9
AN		 3705 ret = wl1271_acx_set_ht_capabilities(wl,
3706 &sta_ht_cap,
3707 true,
3708 wl->sta_hlid);
0f9c8250
AN		 3709 if (ret < 0) {
3710 wl1271_warning("Set ht cap true failed %d",
3711 ret);
3712 goto out;
3713 }
3714 }
3715 /* handle new association without HT and disassociation */
3716 else if (changed & BSS_CHANGED_ASSOC) {
0b932ab9
AN		 3717 ret = wl1271_acx_set_ht_capabilities(wl,
3718 &sta_ht_cap,
3719 false,
3720 wl->sta_hlid);
0f9c8250
AN		 3721 if (ret < 0) {
3722 wl1271_warning("Set ht cap false failed %d",
3723 ret);
3724 goto out;
3725 }
3726 }
3727 }
3728
0b932ab9
AN		 3729 /* Handle HT information change. Done after join. */
3730 if ((changed & BSS_CHANGED_HT) &&
0f9c8250
AN		 3731 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
3732 ret = wl1271_acx_set_ht_information(wl,
3733 bss_conf->ht_operation_mode);
3734 if (ret < 0) {
3735 wl1271_warning("Set ht information failed %d", ret);
3736 goto out;
3737 }
3738 }
3739
e78a287a
AN		 3740out:
3741 return;
3742}
3743
3744static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
3745 struct ieee80211_vif *vif,
3746 struct ieee80211_bss_conf *bss_conf,
3747 u32 changed)
3748{
3749 struct wl1271 *wl = hw->priv;
536129c8
EP		 3750 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3751 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
e78a287a
AN		 3752 int ret;
3753
3754 wl1271_debug(DEBUG_MAC80211, "mac80211 bss info changed 0x%x",
3755 (int)changed);
3756
3757 mutex_lock(&wl->mutex);
3758
3759 if (unlikely(wl->state == WL1271_STATE_OFF))
3760 goto out;
3761
a620865e 3762 ret = wl1271_ps_elp_wakeup(wl);
e78a287a
AN		 3763 if (ret < 0)
3764 goto out;
3765
3766 if (is_ap)
3767 wl1271_bss_info_changed_ap(wl, vif, bss_conf, changed);
3768 else
3769 wl1271_bss_info_changed_sta(wl, vif, bss_conf, changed);
3770
f5fc0f86
LC		 3771 wl1271_ps_elp_sleep(wl);
3772
3773out:
3774 mutex_unlock(&wl->mutex);
3775}
3776
8a3a3c85
EP		 3777static int wl1271_op_conf_tx(struct ieee80211_hw *hw,
3778 struct ieee80211_vif *vif, u16 queue,
c6999d83
KV		 3779 const struct ieee80211_tx_queue_params *params)
3780{
3781 struct wl1271 *wl = hw->priv;
4695dc91 3782 u8 ps_scheme;
488fc540 3783 int ret = 0;
c6999d83
KV		 3784
3785 mutex_lock(&wl->mutex);
3786
3787 wl1271_debug(DEBUG_MAC80211, "mac80211 conf tx %d", queue);
3788
4695dc91
KV		 3789 if (params->uapsd)
3790 ps_scheme = CONF_PS_SCHEME_UPSD_TRIGGER;
3791 else
3792 ps_scheme = CONF_PS_SCHEME_LEGACY;
3793
488fc540
AN		 3794 if (wl->state == WL1271_STATE_OFF) {
3795 /*
3796 * If the state is off, the parameters will be recorded and
3797 * configured on init. This happens in AP-mode.
3798 */
3799 struct conf_tx_ac_category *conf_ac =
3800 &wl->conf.tx.ac_conf[wl1271_tx_get_queue(queue)];
3801 struct conf_tx_tid *conf_tid =
3802 &wl->conf.tx.tid_conf[wl1271_tx_get_queue(queue)];
3803
3804 conf_ac->ac = wl1271_tx_get_queue(queue);
3805 conf_ac->cw_min = (u8)params->cw_min;
3806 conf_ac->cw_max = params->cw_max;
3807 conf_ac->aifsn = params->aifs;
3808 conf_ac->tx_op_limit = params->txop << 5;
3809
3810 conf_tid->queue_id = wl1271_tx_get_queue(queue);
3811 conf_tid->channel_type = CONF_CHANNEL_TYPE_EDCF;
3812 conf_tid->tsid = wl1271_tx_get_queue(queue);
3813 conf_tid->ps_scheme = ps_scheme;
3814 conf_tid->ack_policy = CONF_ACK_POLICY_LEGACY;
3815 conf_tid->apsd_conf[0] = 0;
3816 conf_tid->apsd_conf[1] = 0;
c1b193eb
EP		 3817 goto out;
3818 }
488fc540 3819
c1b193eb
EP		 3820 ret = wl1271_ps_elp_wakeup(wl);
3821 if (ret < 0)
3822 goto out;
488fc540 3823
c1b193eb
EP		 3824 /*
3825 * the txop is confed in units of 32us by the mac80211,
3826 * we need us
3827 */
3828 ret = wl1271_acx_ac_cfg(wl, wl1271_tx_get_queue(queue),
3829 params->cw_min, params->cw_max,
3830 params->aifs, params->txop << 5);
3831 if (ret < 0)
3832 goto out_sleep;
3833
3834 ret = wl1271_acx_tid_cfg(wl, wl1271_tx_get_queue(queue),
3835 CONF_CHANNEL_TYPE_EDCF,
3836 wl1271_tx_get_queue(queue),
3837 ps_scheme, CONF_ACK_POLICY_LEGACY,
3838 0, 0);
c82c1dde
KV		 3839
3840out_sleep:
c1b193eb 3841 wl1271_ps_elp_sleep(wl);
c6999d83
KV		 3842
3843out:
3844 mutex_unlock(&wl->mutex);
3845
3846 return ret;
3847}
3848
37a41b4a
EP		 3849static u64 wl1271_op_get_tsf(struct ieee80211_hw *hw,
3850 struct ieee80211_vif *vif)
bbbb538e
JO		 3851{
3852
3853 struct wl1271 *wl = hw->priv;
3854 u64 mactime = ULLONG_MAX;
3855 int ret;
3856
3857 wl1271_debug(DEBUG_MAC80211, "mac80211 get tsf");
3858
3859 mutex_lock(&wl->mutex);
3860
f8d9802f
JO		 3861 if (unlikely(wl->state == WL1271_STATE_OFF))
3862 goto out;
3863
a620865e 3864 ret = wl1271_ps_elp_wakeup(wl);
bbbb538e
JO		 3865 if (ret < 0)
3866 goto out;
3867
3868 ret = wl1271_acx_tsf_info(wl, &mactime);
3869 if (ret < 0)
3870 goto out_sleep;
3871
3872out_sleep:
3873 wl1271_ps_elp_sleep(wl);
3874
3875out:
3876 mutex_unlock(&wl->mutex);
3877 return mactime;
3878}
f5fc0f86 3879
ece550d0
JL		 3880static int wl1271_op_get_survey(struct ieee80211_hw *hw, int idx,
3881 struct survey_info *survey)
3882{
3883 struct wl1271 *wl = hw->priv;
3884 struct ieee80211_conf *conf = &hw->conf;
b739a42c 3885
ece550d0
JL		 3886 if (idx != 0)
3887 return -ENOENT;
b739a42c 3888
ece550d0
JL		 3889 survey->channel = conf->channel;
3890 survey->filled = SURVEY_INFO_NOISE_DBM;
3891 survey->noise = wl->noise;
b739a42c 3892
ece550d0
JL		 3893 return 0;
3894}
3895
409622ec 3896static int wl1271_allocate_sta(struct wl1271 *wl,
f84f7d78
AN		 3897 struct ieee80211_sta *sta,
3898 u8 *hlid)
3899{
3900 struct wl1271_station *wl_sta;
3901 int id;
3902
3903 id = find_first_zero_bit(wl->ap_hlid_map, AP_MAX_STATIONS);
3904 if (id >= AP_MAX_STATIONS) {
3905 wl1271_warning("could not allocate HLID - too much stations");
3906 return -EBUSY;
3907 }
3908
3909 wl_sta = (struct wl1271_station *)sta->drv_priv;
04216da3 3910 set_bit(id, wl->ap_hlid_map);
f84f7d78
AN		 3911 wl_sta->hlid = WL1271_AP_STA_HLID_START + id;
3912 *hlid = wl_sta->hlid;
b622d992 3913 memcpy(wl->links[wl_sta->hlid].addr, sta->addr, ETH_ALEN);
da03209e 3914 wl->active_sta_count++;
f84f7d78
AN		 3915 return 0;
3916}
3917
f1acea9a 3918void wl1271_free_sta(struct wl1271 *wl, u8 hlid)
f84f7d78
AN		 3919{
3920 int id = hlid - WL1271_AP_STA_HLID_START;
3921
f1acea9a
AN		 3922 if (hlid < WL1271_AP_STA_HLID_START)
3923 return;
3924
3925 if (!test_bit(id, wl->ap_hlid_map))
409622ec
AN		 3926 return;
3927
04216da3 3928 clear_bit(id, wl->ap_hlid_map);
b622d992 3929 memset(wl->links[hlid].addr, 0, ETH_ALEN);
0f9c8250 3930 wl->links[hlid].ba_bitmap = 0;
a8c0ddb5 3931 wl1271_tx_reset_link_queues(wl, hlid);
b622d992
AN		 3932 __clear_bit(hlid, &wl->ap_ps_map);
3933 __clear_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
da03209e 3934 wl->active_sta_count--;
f84f7d78
AN		 3935}
3936
3937static int wl1271_op_sta_add(struct ieee80211_hw *hw,
3938 struct ieee80211_vif *vif,
3939 struct ieee80211_sta *sta)
3940{
3941 struct wl1271 *wl = hw->priv;
536129c8 3942 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
f84f7d78
AN		 3943 int ret = 0;
3944 u8 hlid;
3945
3946 mutex_lock(&wl->mutex);
3947
3948 if (unlikely(wl->state == WL1271_STATE_OFF))
3949 goto out;
3950
536129c8 3951 if (wlvif->bss_type != BSS_TYPE_AP_BSS)
f84f7d78
AN		 3952 goto out;
3953
3954 wl1271_debug(DEBUG_MAC80211, "mac80211 add sta %d", (int)sta->aid);
3955
409622ec 3956 ret = wl1271_allocate_sta(wl, sta, &hlid);
f84f7d78
AN		 3957 if (ret < 0)
3958 goto out;
3959
a620865e 3960 ret = wl1271_ps_elp_wakeup(wl);
f84f7d78 3961 if (ret < 0)
409622ec 3962 goto out_free_sta;
f84f7d78 3963
c690ec81 3964 ret = wl12xx_cmd_add_peer(wl, sta, hlid);
f84f7d78
AN		 3965 if (ret < 0)
3966 goto out_sleep;
3967
b67476ef
EP		 3968 ret = wl12xx_cmd_set_peer_state(wl, hlid);
3969 if (ret < 0)
3970 goto out_sleep;
3971
0b932ab9
AN		 3972 ret = wl1271_acx_set_ht_capabilities(wl, &sta->ht_cap, true, hlid);
3973 if (ret < 0)
3974 goto out_sleep;
3975
f84f7d78
AN		 3976out_sleep:
3977 wl1271_ps_elp_sleep(wl);
3978
409622ec
AN		 3979out_free_sta:
3980 if (ret < 0)
3981 wl1271_free_sta(wl, hlid);
3982
f84f7d78
AN		 3983out:
3984 mutex_unlock(&wl->mutex);
3985 return ret;
3986}
3987
3988static int wl1271_op_sta_remove(struct ieee80211_hw *hw,
3989 struct ieee80211_vif *vif,
3990 struct ieee80211_sta *sta)
3991{
3992 struct wl1271 *wl = hw->priv;
536129c8 3993 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
f84f7d78
AN		 3994 struct wl1271_station *wl_sta;
3995 int ret = 0, id;
3996
3997 mutex_lock(&wl->mutex);
3998
3999 if (unlikely(wl->state == WL1271_STATE_OFF))
4000 goto out;
4001
536129c8 4002 if (wlvif->bss_type != BSS_TYPE_AP_BSS)
f84f7d78
AN		 4003 goto out;
4004
4005 wl1271_debug(DEBUG_MAC80211, "mac80211 remove sta %d", (int)sta->aid);
4006
4007 wl_sta = (struct wl1271_station *)sta->drv_priv;
4008 id = wl_sta->hlid - WL1271_AP_STA_HLID_START;
4009 if (WARN_ON(!test_bit(id, wl->ap_hlid_map)))
4010 goto out;
4011
a620865e 4012 ret = wl1271_ps_elp_wakeup(wl);
f84f7d78
AN		 4013 if (ret < 0)
4014 goto out;
4015
c690ec81 4016 ret = wl12xx_cmd_remove_peer(wl, wl_sta->hlid);
f84f7d78
AN		 4017 if (ret < 0)
4018 goto out_sleep;
4019
409622ec 4020 wl1271_free_sta(wl, wl_sta->hlid);
f84f7d78
AN		 4021
4022out_sleep:
4023 wl1271_ps_elp_sleep(wl);
4024
4025out:
4026 mutex_unlock(&wl->mutex);
4027 return ret;
4028}
4029
4623ec7d
LC		 4030static int wl1271_op_ampdu_action(struct ieee80211_hw *hw,
4031 struct ieee80211_vif *vif,
4032 enum ieee80211_ampdu_mlme_action action,
4033 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
4034 u8 buf_size)
bbba3e68
LS		 4035{
4036 struct wl1271 *wl = hw->priv;
536129c8 4037 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
bbba3e68 4038 int ret;
0f9c8250
AN		 4039 u8 hlid, *ba_bitmap;
4040
4041 wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu action %d tid %d", action,
4042 tid);
4043
4044 /* sanity check - the fields in FW are only 8bits wide */
4045 if (WARN_ON(tid > 0xFF))
4046 return -ENOTSUPP;
bbba3e68
LS		 4047
4048 mutex_lock(&wl->mutex);
4049
4050 if (unlikely(wl->state == WL1271_STATE_OFF)) {
4051 ret = -EAGAIN;
4052 goto out;
4053 }
4054
536129c8 4055 if (wlvif->bss_type == BSS_TYPE_STA_BSS) {
0f9c8250
AN		 4056 hlid = wl->sta_hlid;
4057 ba_bitmap = &wl->ba_rx_bitmap;
536129c8 4058 } else if (wlvif->bss_type == BSS_TYPE_AP_BSS) {
0f9c8250
AN		 4059 struct wl1271_station *wl_sta;
4060
4061 wl_sta = (struct wl1271_station *)sta->drv_priv;
4062 hlid = wl_sta->hlid;
4063 ba_bitmap = &wl->links[hlid].ba_bitmap;
4064 } else {
4065 ret = -EINVAL;
4066 goto out;
4067 }
4068
a620865e 4069 ret = wl1271_ps_elp_wakeup(wl);
bbba3e68
LS		 4070 if (ret < 0)
4071 goto out;
4072
70559a06
SL		 4073 wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu: Rx tid %d action %d",
4074 tid, action);
4075
bbba3e68
LS		 4076 switch (action) {
4077 case IEEE80211_AMPDU_RX_START:
0f9c8250 4078 if (!wl->ba_support || !wl->ba_allowed) {
bbba3e68 4079 ret = -ENOTSUPP;
0f9c8250
AN		 4080 break;
4081 }
4082
4083 if (wl->ba_rx_session_count >= RX_BA_MAX_SESSIONS) {
4084 ret = -EBUSY;
4085 wl1271_error("exceeded max RX BA sessions");
4086 break;
4087 }
4088
4089 if (*ba_bitmap & BIT(tid)) {
4090 ret = -EINVAL;
4091 wl1271_error("cannot enable RX BA session on active "
4092 "tid: %d", tid);
4093 break;
4094 }
4095
4096 ret = wl12xx_acx_set_ba_receiver_session(wl, tid, *ssn, true,
4097 hlid);
4098 if (!ret) {
4099 *ba_bitmap |= BIT(tid);
4100 wl->ba_rx_session_count++;
bbba3e68
LS		 4101 }
4102 break;
4103
4104 case IEEE80211_AMPDU_RX_STOP:
0f9c8250
AN		 4105 if (!(*ba_bitmap & BIT(tid))) {
4106 ret = -EINVAL;
4107 wl1271_error("no active RX BA session on tid: %d",
4108 tid);
4109 break;
4110 }
4111
4112 ret = wl12xx_acx_set_ba_receiver_session(wl, tid, 0, false,
4113 hlid);
4114 if (!ret) {
4115 *ba_bitmap &= ~BIT(tid);
4116 wl->ba_rx_session_count--;
4117 }
bbba3e68
LS		 4118 break;
4119
4120 /*
4121 * The BA initiator session management in FW independently.
4122 * Falling break here on purpose for all TX APDU commands.
4123 */
4124 case IEEE80211_AMPDU_TX_START:
4125 case IEEE80211_AMPDU_TX_STOP:
4126 case IEEE80211_AMPDU_TX_OPERATIONAL:
4127 ret = -EINVAL;
4128 break;
4129
4130 default:
4131 wl1271_error("Incorrect ampdu action id=%x\n", action);
4132 ret = -EINVAL;
4133 }
4134
4135 wl1271_ps_elp_sleep(wl);
4136
4137out:
4138 mutex_unlock(&wl->mutex);
4139
4140 return ret;
4141}
4142
af7fbb28
EP		 4143static int wl12xx_set_bitrate_mask(struct ieee80211_hw *hw,
4144 struct ieee80211_vif *vif,
4145 const struct cfg80211_bitrate_mask *mask)
4146{
4147 struct wl1271 *wl = hw->priv;
4148 int i;
4149
4150 wl1271_debug(DEBUG_MAC80211, "mac80211 set_bitrate_mask 0x%x 0x%x",
4151 mask->control[NL80211_BAND_2GHZ].legacy,
4152 mask->control[NL80211_BAND_5GHZ].legacy);
4153
4154 mutex_lock(&wl->mutex);
4155
4156 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4157 wl->bitrate_masks[i] =
4158 wl1271_tx_enabled_rates_get(wl,
4159 mask->control[i].legacy,
4160 i);
4161 mutex_unlock(&wl->mutex);
4162
4163 return 0;
4164}
4165
6d158ff3
SL		 4166static void wl12xx_op_channel_switch(struct ieee80211_hw *hw,
4167 struct ieee80211_channel_switch *ch_switch)
4168{
4169 struct wl1271 *wl = hw->priv;
4170 int ret;
4171
4172 wl1271_debug(DEBUG_MAC80211, "mac80211 channel switch");
4173
4174 mutex_lock(&wl->mutex);
4175
4176 if (unlikely(wl->state == WL1271_STATE_OFF)) {
4177 mutex_unlock(&wl->mutex);
4178 ieee80211_chswitch_done(wl->vif, false);
4179 return;
4180 }
4181
4182 ret = wl1271_ps_elp_wakeup(wl);
4183 if (ret < 0)
4184 goto out;
4185
4186 ret = wl12xx_cmd_channel_switch(wl, ch_switch);
4187
4188 if (!ret)
4189 set_bit(WL1271_FLAG_CS_PROGRESS, &wl->flags);
4190
4191 wl1271_ps_elp_sleep(wl);
4192
4193out:
4194 mutex_unlock(&wl->mutex);
4195}
4196
33437893
AN		 4197static bool wl1271_tx_frames_pending(struct ieee80211_hw *hw)
4198{
4199 struct wl1271 *wl = hw->priv;
4200 bool ret = false;
4201
4202 mutex_lock(&wl->mutex);
4203
4204 if (unlikely(wl->state == WL1271_STATE_OFF))
4205 goto out;
4206
4207 /* packets are considered pending if in the TX queue or the FW */
f1a46384 4208 ret = (wl1271_tx_total_queue_count(wl) > 0) || (wl->tx_frames_cnt > 0);
33437893
AN		 4209out:
4210 mutex_unlock(&wl->mutex);
4211
4212 return ret;
4213}
4214
f5fc0f86
LC		 4215/* can't be const, mac80211 writes to this */
4216static struct ieee80211_rate wl1271_rates[] = {
4217 { .bitrate = 10,
2b60100b
JO		 4218 .hw_value = CONF_HW_BIT_RATE_1MBPS,
4219 .hw_value_short = CONF_HW_BIT_RATE_1MBPS, },
f5fc0f86 4220 { .bitrate = 20,
2b60100b
JO		 4221 .hw_value = CONF_HW_BIT_RATE_2MBPS,
4222 .hw_value_short = CONF_HW_BIT_RATE_2MBPS,
f5fc0f86
LC		 4223 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4224 { .bitrate = 55,
2b60100b
JO		 4225 .hw_value = CONF_HW_BIT_RATE_5_5MBPS,
4226 .hw_value_short = CONF_HW_BIT_RATE_5_5MBPS,
f5fc0f86
LC		 4227 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4228 { .bitrate = 110,
2b60100b
JO		 4229 .hw_value = CONF_HW_BIT_RATE_11MBPS,
4230 .hw_value_short = CONF_HW_BIT_RATE_11MBPS,
f5fc0f86
LC		 4231 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4232 { .bitrate = 60,
2b60100b
JO		 4233 .hw_value = CONF_HW_BIT_RATE_6MBPS,
4234 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
f5fc0f86 4235 { .bitrate = 90,
2b60100b
JO		 4236 .hw_value = CONF_HW_BIT_RATE_9MBPS,
4237 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
f5fc0f86 4238 { .bitrate = 120,
2b60100b
JO		 4239 .hw_value = CONF_HW_BIT_RATE_12MBPS,
4240 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
f5fc0f86 4241 { .bitrate = 180,
2b60100b
JO		 4242 .hw_value = CONF_HW_BIT_RATE_18MBPS,
4243 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
f5fc0f86 4244 { .bitrate = 240,
2b60100b
JO		 4245 .hw_value = CONF_HW_BIT_RATE_24MBPS,
4246 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
f5fc0f86 4247 { .bitrate = 360,
2b60100b
JO		 4248 .hw_value = CONF_HW_BIT_RATE_36MBPS,
4249 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
f5fc0f86 4250 { .bitrate = 480,
2b60100b
JO		 4251 .hw_value = CONF_HW_BIT_RATE_48MBPS,
4252 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
f5fc0f86 4253 { .bitrate = 540,
2b60100b
JO		 4254 .hw_value = CONF_HW_BIT_RATE_54MBPS,
4255 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
f5fc0f86
LC		 4256};
4257
fa97f46b 4258/* can't be const, mac80211 writes to this */
f5fc0f86 4259static struct ieee80211_channel wl1271_channels[] = {
a2d0e3f1 4260 { .hw_value = 1, .center_freq = 2412, .max_power = 25 },
fa21c7a9 4261 { .hw_value = 2, .center_freq = 2417, .max_power = 25 },
fa97f46b
JO		 4262 { .hw_value = 3, .center_freq = 2422, .max_power = 25 },
4263 { .hw_value = 4, .center_freq = 2427, .max_power = 25 },
4264 { .hw_value = 5, .center_freq = 2432, .max_power = 25 },
fa21c7a9 4265 { .hw_value = 6, .center_freq = 2437, .max_power = 25 },
fa97f46b
JO		 4266 { .hw_value = 7, .center_freq = 2442, .max_power = 25 },
4267 { .hw_value = 8, .center_freq = 2447, .max_power = 25 },
4268 { .hw_value = 9, .center_freq = 2452, .max_power = 25 },
fa21c7a9 4269 { .hw_value = 10, .center_freq = 2457, .max_power = 25 },
fa97f46b
JO		 4270 { .hw_value = 11, .center_freq = 2462, .max_power = 25 },
4271 { .hw_value = 12, .center_freq = 2467, .max_power = 25 },
4272 { .hw_value = 13, .center_freq = 2472, .max_power = 25 },
6c89b7b2 4273 { .hw_value = 14, .center_freq = 2484, .max_power = 25 },
f5fc0f86
LC		 4274};
4275
f876bb9a 4276/* mapping to indexes for wl1271_rates */
a0ea9493 4277static const u8 wl1271_rate_to_idx_2ghz[] = {
f876bb9a 4278 /* MCS rates are used only with 11n */
18357850
SL		 4279 7, /* CONF_HW_RXTX_RATE_MCS7 */
4280 6, /* CONF_HW_RXTX_RATE_MCS6 */
4281 5, /* CONF_HW_RXTX_RATE_MCS5 */
4282 4, /* CONF_HW_RXTX_RATE_MCS4 */
4283 3, /* CONF_HW_RXTX_RATE_MCS3 */
4284 2, /* CONF_HW_RXTX_RATE_MCS2 */
4285 1, /* CONF_HW_RXTX_RATE_MCS1 */
4286 0, /* CONF_HW_RXTX_RATE_MCS0 */
f876bb9a
JO		 4287
4288 11, /* CONF_HW_RXTX_RATE_54 */
4289 10, /* CONF_HW_RXTX_RATE_48 */
4290 9, /* CONF_HW_RXTX_RATE_36 */
4291 8, /* CONF_HW_RXTX_RATE_24 */
4292
4293 /* TI-specific rate */
4294 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_22 */
4295
4296 7, /* CONF_HW_RXTX_RATE_18 */
4297 6, /* CONF_HW_RXTX_RATE_12 */
4298 3, /* CONF_HW_RXTX_RATE_11 */
4299 5, /* CONF_HW_RXTX_RATE_9 */
4300 4, /* CONF_HW_RXTX_RATE_6 */
4301 2, /* CONF_HW_RXTX_RATE_5_5 */
4302 1, /* CONF_HW_RXTX_RATE_2 */
4303 0 /* CONF_HW_RXTX_RATE_1 */
4304};
4305
e8b03a2b
SL		 4306/* 11n STA capabilities */
4307#define HW_RX_HIGHEST_RATE 72
4308
00d20100 4309#define WL12XX_HT_CAP { \
871d0c3b
SL		 4310 .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 | \
4311 (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT), \
e8b03a2b
SL		 4312 .ht_supported = true, \
4313 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K, \
4314 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_8, \
4315 .mcs = { \
4316 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, \
4317 .rx_highest = cpu_to_le16(HW_RX_HIGHEST_RATE), \
4318 .tx_params = IEEE80211_HT_MCS_TX_DEFINED, \
4319 }, \
4320}
4321
f5fc0f86
LC		 4322/* can't be const, mac80211 writes to this */
4323static struct ieee80211_supported_band wl1271_band_2ghz = {
4324 .channels = wl1271_channels,
4325 .n_channels = ARRAY_SIZE(wl1271_channels),
4326 .bitrates = wl1271_rates,
4327 .n_bitrates = ARRAY_SIZE(wl1271_rates),
00d20100 4328 .ht_cap = WL12XX_HT_CAP,
f5fc0f86
LC		 4329};
4330
1ebec3d7
TP		 4331/* 5 GHz data rates for WL1273 */
4332static struct ieee80211_rate wl1271_rates_5ghz[] = {
4333 { .bitrate = 60,
4334 .hw_value = CONF_HW_BIT_RATE_6MBPS,
4335 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
4336 { .bitrate = 90,
4337 .hw_value = CONF_HW_BIT_RATE_9MBPS,
4338 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
4339 { .bitrate = 120,
4340 .hw_value = CONF_HW_BIT_RATE_12MBPS,
4341 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
4342 { .bitrate = 180,
4343 .hw_value = CONF_HW_BIT_RATE_18MBPS,
4344 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
4345 { .bitrate = 240,
4346 .hw_value = CONF_HW_BIT_RATE_24MBPS,
4347 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
4348 { .bitrate = 360,
4349 .hw_value = CONF_HW_BIT_RATE_36MBPS,
4350 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
4351 { .bitrate = 480,
4352 .hw_value = CONF_HW_BIT_RATE_48MBPS,
4353 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
4354 { .bitrate = 540,
4355 .hw_value = CONF_HW_BIT_RATE_54MBPS,
4356 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
4357};
4358
fa97f46b 4359/* 5 GHz band channels for WL1273 */
1ebec3d7 4360static struct ieee80211_channel wl1271_channels_5ghz[] = {
6cfa5cff
AN		 4361 { .hw_value = 7, .center_freq = 5035, .max_power = 25 },
4362 { .hw_value = 8, .center_freq = 5040, .max_power = 25 },
4363 { .hw_value = 9, .center_freq = 5045, .max_power = 25 },
4364 { .hw_value = 11, .center_freq = 5055, .max_power = 25 },
4365 { .hw_value = 12, .center_freq = 5060, .max_power = 25 },
4366 { .hw_value = 16, .center_freq = 5080, .max_power = 25 },
4367 { .hw_value = 34, .center_freq = 5170, .max_power = 25 },
4368 { .hw_value = 36, .center_freq = 5180, .max_power = 25 },
4369 { .hw_value = 38, .center_freq = 5190, .max_power = 25 },
4370 { .hw_value = 40, .center_freq = 5200, .max_power = 25 },
4371 { .hw_value = 42, .center_freq = 5210, .max_power = 25 },
4372 { .hw_value = 44, .center_freq = 5220, .max_power = 25 },
4373 { .hw_value = 46, .center_freq = 5230, .max_power = 25 },
4374 { .hw_value = 48, .center_freq = 5240, .max_power = 25 },
4375 { .hw_value = 52, .center_freq = 5260, .max_power = 25 },
4376 { .hw_value = 56, .center_freq = 5280, .max_power = 25 },
4377 { .hw_value = 60, .center_freq = 5300, .max_power = 25 },
4378 { .hw_value = 64, .center_freq = 5320, .max_power = 25 },
4379 { .hw_value = 100, .center_freq = 5500, .max_power = 25 },
4380 { .hw_value = 104, .center_freq = 5520, .max_power = 25 },
4381 { .hw_value = 108, .center_freq = 5540, .max_power = 25 },
4382 { .hw_value = 112, .center_freq = 5560, .max_power = 25 },
4383 { .hw_value = 116, .center_freq = 5580, .max_power = 25 },
4384 { .hw_value = 120, .center_freq = 5600, .max_power = 25 },
4385 { .hw_value = 124, .center_freq = 5620, .max_power = 25 },
4386 { .hw_value = 128, .center_freq = 5640, .max_power = 25 },
4387 { .hw_value = 132, .center_freq = 5660, .max_power = 25 },
4388 { .hw_value = 136, .center_freq = 5680, .max_power = 25 },
4389 { .hw_value = 140, .center_freq = 5700, .max_power = 25 },
4390 { .hw_value = 149, .center_freq = 5745, .max_power = 25 },
4391 { .hw_value = 153, .center_freq = 5765, .max_power = 25 },
4392 { .hw_value = 157, .center_freq = 5785, .max_power = 25 },
4393 { .hw_value = 161, .center_freq = 5805, .max_power = 25 },
4394 { .hw_value = 165, .center_freq = 5825, .max_power = 25 },
1ebec3d7
TP		 4395};
4396
f876bb9a 4397/* mapping to indexes for wl1271_rates_5ghz */
a0ea9493 4398static const u8 wl1271_rate_to_idx_5ghz[] = {
f876bb9a 4399 /* MCS rates are used only with 11n */
18357850
SL		 4400 7, /* CONF_HW_RXTX_RATE_MCS7 */
4401 6, /* CONF_HW_RXTX_RATE_MCS6 */
4402 5, /* CONF_HW_RXTX_RATE_MCS5 */
4403 4, /* CONF_HW_RXTX_RATE_MCS4 */
4404 3, /* CONF_HW_RXTX_RATE_MCS3 */
4405 2, /* CONF_HW_RXTX_RATE_MCS2 */
4406 1, /* CONF_HW_RXTX_RATE_MCS1 */
4407 0, /* CONF_HW_RXTX_RATE_MCS0 */
f876bb9a
JO		 4408
4409 7, /* CONF_HW_RXTX_RATE_54 */
4410 6, /* CONF_HW_RXTX_RATE_48 */
4411 5, /* CONF_HW_RXTX_RATE_36 */
4412 4, /* CONF_HW_RXTX_RATE_24 */
4413
4414 /* TI-specific rate */
4415 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_22 */
4416
4417 3, /* CONF_HW_RXTX_RATE_18 */
4418 2, /* CONF_HW_RXTX_RATE_12 */
4419 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_11 */
4420 1, /* CONF_HW_RXTX_RATE_9 */
4421 0, /* CONF_HW_RXTX_RATE_6 */
4422 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_5_5 */
4423 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_2 */
4424 CONF_HW_RXTX_RATE_UNSUPPORTED /* CONF_HW_RXTX_RATE_1 */
4425};
1ebec3d7
TP		 4426
4427static struct ieee80211_supported_band wl1271_band_5ghz = {
4428 .channels = wl1271_channels_5ghz,
4429 .n_channels = ARRAY_SIZE(wl1271_channels_5ghz),
4430 .bitrates = wl1271_rates_5ghz,
4431 .n_bitrates = ARRAY_SIZE(wl1271_rates_5ghz),
00d20100 4432 .ht_cap = WL12XX_HT_CAP,
1ebec3d7
TP		 4433};
4434
a0ea9493 4435static const u8 *wl1271_band_rate_to_idx[] = {
f876bb9a
JO		 4436 [IEEE80211_BAND_2GHZ] = wl1271_rate_to_idx_2ghz,
4437 [IEEE80211_BAND_5GHZ] = wl1271_rate_to_idx_5ghz
4438};
4439
f5fc0f86
LC		 4440static const struct ieee80211_ops wl1271_ops = {
4441 .start = wl1271_op_start,
4442 .stop = wl1271_op_stop,
4443 .add_interface = wl1271_op_add_interface,
4444 .remove_interface = wl1271_op_remove_interface,
f634a4e7 4445#ifdef CONFIG_PM
402e4861
EP		 4446 .suspend = wl1271_op_suspend,
4447 .resume = wl1271_op_resume,
f634a4e7 4448#endif
f5fc0f86 4449 .config = wl1271_op_config,
c87dec9f 4450 .prepare_multicast = wl1271_op_prepare_multicast,
f5fc0f86
LC		 4451 .configure_filter = wl1271_op_configure_filter,
4452 .tx = wl1271_op_tx,
4453 .set_key = wl1271_op_set_key,
4454 .hw_scan = wl1271_op_hw_scan,
73ecce31 4455 .cancel_hw_scan = wl1271_op_cancel_hw_scan,
33c2c06c
LC		 4456 .sched_scan_start = wl1271_op_sched_scan_start,
4457 .sched_scan_stop = wl1271_op_sched_scan_stop,
f5fc0f86 4458 .bss_info_changed = wl1271_op_bss_info_changed,
68d069c4 4459 .set_frag_threshold = wl1271_op_set_frag_threshold,
f5fc0f86 4460 .set_rts_threshold = wl1271_op_set_rts_threshold,
c6999d83 4461 .conf_tx = wl1271_op_conf_tx,
bbbb538e 4462 .get_tsf = wl1271_op_get_tsf,
ece550d0 4463 .get_survey = wl1271_op_get_survey,
f84f7d78
AN		 4464 .sta_add = wl1271_op_sta_add,
4465 .sta_remove = wl1271_op_sta_remove,
bbba3e68 4466 .ampdu_action = wl1271_op_ampdu_action,
33437893 4467 .tx_frames_pending = wl1271_tx_frames_pending,
af7fbb28 4468 .set_bitrate_mask = wl12xx_set_bitrate_mask,
6d158ff3 4469 .channel_switch = wl12xx_op_channel_switch,
c8c90873 4470 CFG80211_TESTMODE_CMD(wl1271_tm_cmd)
f5fc0f86
LC		 4471};
4472
f876bb9a 4473
6a2de93b 4474u8 wl1271_rate_to_idx(int rate, enum ieee80211_band band)
f876bb9a
JO		 4475{
4476 u8 idx;
4477
6a2de93b 4478 BUG_ON(band >= sizeof(wl1271_band_rate_to_idx)/sizeof(u8 *));
f876bb9a
JO		 4479
4480 if (unlikely(rate >= CONF_HW_RXTX_RATE_MAX)) {
4481 wl1271_error("Illegal RX rate from HW: %d", rate);
4482 return 0;
4483 }
4484
6a2de93b 4485 idx = wl1271_band_rate_to_idx[band][rate];
f876bb9a
JO		 4486 if (unlikely(idx == CONF_HW_RXTX_RATE_UNSUPPORTED)) {
4487 wl1271_error("Unsupported RX rate from HW: %d", rate);
4488 return 0;
4489 }
4490
4491 return idx;
4492}
4493
7fc3a864
JO		 4494static ssize_t wl1271_sysfs_show_bt_coex_state(struct device *dev,
4495 struct device_attribute *attr,
4496 char *buf)
4497{
4498 struct wl1271 *wl = dev_get_drvdata(dev);
4499 ssize_t len;
4500
2f63b011 4501 len = PAGE_SIZE;
7fc3a864
JO		 4502
4503 mutex_lock(&wl->mutex);
4504 len = snprintf(buf, len, "%d\n\n0 - off\n1 - on\n",
4505 wl->sg_enabled);
4506 mutex_unlock(&wl->mutex);
4507
4508 return len;
4509
4510}
4511
4512static ssize_t wl1271_sysfs_store_bt_coex_state(struct device *dev,
4513 struct device_attribute *attr,
4514 const char *buf, size_t count)
4515{
4516 struct wl1271 *wl = dev_get_drvdata(dev);
4517 unsigned long res;
4518 int ret;
4519
6277ed65 4520 ret = kstrtoul(buf, 10, &res);
7fc3a864
JO		 4521 if (ret < 0) {
4522 wl1271_warning("incorrect value written to bt_coex_mode");
4523 return count;
4524 }
4525
4526 mutex_lock(&wl->mutex);
4527
4528 res = !!res;
4529
4530 if (res == wl->sg_enabled)
4531 goto out;
4532
4533 wl->sg_enabled = res;
4534
4535 if (wl->state == WL1271_STATE_OFF)
4536 goto out;
4537
a620865e 4538 ret = wl1271_ps_elp_wakeup(wl);
7fc3a864
JO		 4539 if (ret < 0)
4540 goto out;
4541
4542 wl1271_acx_sg_enable(wl, wl->sg_enabled);
4543 wl1271_ps_elp_sleep(wl);
4544
4545 out:
4546 mutex_unlock(&wl->mutex);
4547 return count;
4548}
4549
4550static DEVICE_ATTR(bt_coex_state, S_IRUGO | S_IWUSR,
4551 wl1271_sysfs_show_bt_coex_state,
4552 wl1271_sysfs_store_bt_coex_state);
4553
d717fd61
JO		 4554static ssize_t wl1271_sysfs_show_hw_pg_ver(struct device *dev,
4555 struct device_attribute *attr,
4556 char *buf)
4557{
4558 struct wl1271 *wl = dev_get_drvdata(dev);
4559 ssize_t len;
4560
2f63b011 4561 len = PAGE_SIZE;
d717fd61
JO		 4562
4563 mutex_lock(&wl->mutex);
4564 if (wl->hw_pg_ver >= 0)
4565 len = snprintf(buf, len, "%d\n", wl->hw_pg_ver);
4566 else
4567 len = snprintf(buf, len, "n/a\n");
4568 mutex_unlock(&wl->mutex);
4569
4570 return len;
4571}
4572
6f07b72a 4573static DEVICE_ATTR(hw_pg_ver, S_IRUGO,
d717fd61
JO		 4574 wl1271_sysfs_show_hw_pg_ver, NULL);
4575
95dac04f
IY		 4576static ssize_t wl1271_sysfs_read_fwlog(struct file *filp, struct kobject *kobj,
4577 struct bin_attribute *bin_attr,
4578 char *buffer, loff_t pos, size_t count)
4579{
4580 struct device *dev = container_of(kobj, struct device, kobj);
4581 struct wl1271 *wl = dev_get_drvdata(dev);
4582 ssize_t len;
4583 int ret;
4584
4585 ret = mutex_lock_interruptible(&wl->mutex);
4586 if (ret < 0)
4587 return -ERESTARTSYS;
4588
4589 /* Let only one thread read the log at a time, blocking others */
4590 while (wl->fwlog_size == 0) {
4591 DEFINE_WAIT(wait);
4592
4593 prepare_to_wait_exclusive(&wl->fwlog_waitq,
4594 &wait,
4595 TASK_INTERRUPTIBLE);
4596
4597 if (wl->fwlog_size != 0) {
4598 finish_wait(&wl->fwlog_waitq, &wait);
4599 break;
4600 }
4601
4602 mutex_unlock(&wl->mutex);
4603
4604 schedule();
4605 finish_wait(&wl->fwlog_waitq, &wait);
4606
4607 if (signal_pending(current))
4608 return -ERESTARTSYS;
4609
4610 ret = mutex_lock_interruptible(&wl->mutex);
4611 if (ret < 0)
4612 return -ERESTARTSYS;
4613 }
4614
4615 /* Check if the fwlog is still valid */
4616 if (wl->fwlog_size < 0) {
4617 mutex_unlock(&wl->mutex);
4618 return 0;
4619 }
4620
4621 /* Seeking is not supported - old logs are not kept. Disregard pos. */
4622 len = min(count, (size_t)wl->fwlog_size);
4623 wl->fwlog_size -= len;
4624 memcpy(buffer, wl->fwlog, len);
4625
4626 /* Make room for new messages */
4627 memmove(wl->fwlog, wl->fwlog + len, wl->fwlog_size);
4628
4629 mutex_unlock(&wl->mutex);
4630
4631 return len;
4632}
4633
4634static struct bin_attribute fwlog_attr = {
4635 .attr = {.name = "fwlog", .mode = S_IRUSR},
4636 .read = wl1271_sysfs_read_fwlog,
4637};
4638
2d5e82b8 4639int wl1271_register_hw(struct wl1271 *wl)
f5fc0f86
LC		 4640{
4641 int ret;
4642
4643 if (wl->mac80211_registered)
4644 return 0;
4645
31d26ec6
AN		 4646 ret = wl1271_fetch_nvs(wl);
4647 if (ret == 0) {
bc765bf3
SL		 4648 /* NOTE: The wl->nvs->nvs element must be first, in
4649 * order to simplify the casting, we assume it is at
4650 * the beginning of the wl->nvs structure.
4651 */
4652 u8 *nvs_ptr = (u8 *)wl->nvs;
31d26ec6
AN		 4653
4654 wl->mac_addr[0] = nvs_ptr[11];
4655 wl->mac_addr[1] = nvs_ptr[10];
4656 wl->mac_addr[2] = nvs_ptr[6];
4657 wl->mac_addr[3] = nvs_ptr[5];
4658 wl->mac_addr[4] = nvs_ptr[4];
4659 wl->mac_addr[5] = nvs_ptr[3];
4660 }
4661
f5fc0f86
LC		 4662 SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr);
4663
4664 ret = ieee80211_register_hw(wl->hw);
4665 if (ret < 0) {
4666 wl1271_error("unable to register mac80211 hw: %d", ret);
4667 return ret;
4668 }
4669
4670 wl->mac80211_registered = true;
4671
d60080ae
EP		 4672 wl1271_debugfs_init(wl);
4673
c2c192ac
JO		 4674 register_netdevice_notifier(&wl1271_dev_notifier);
4675
f5fc0f86
LC		 4676 wl1271_notice("loaded");
4677
4678 return 0;
4679}
50b3eb4b 4680EXPORT_SYMBOL_GPL(wl1271_register_hw);
f5fc0f86 4681
3b56dd6a
TP		 4682void wl1271_unregister_hw(struct wl1271 *wl)
4683{
4ae3fa87
JO		 4684 if (wl->state == WL1271_STATE_PLT)
4685 __wl1271_plt_stop(wl);
4686
c2c192ac 4687 unregister_netdevice_notifier(&wl1271_dev_notifier);
3b56dd6a
TP		 4688 ieee80211_unregister_hw(wl->hw);
4689 wl->mac80211_registered = false;
4690
4691}
4692EXPORT_SYMBOL_GPL(wl1271_unregister_hw);
4693
2d5e82b8 4694int wl1271_init_ieee80211(struct wl1271 *wl)
f5fc0f86 4695{
7a55724e
JO		 4696 static const u32 cipher_suites[] = {
4697 WLAN_CIPHER_SUITE_WEP40,
4698 WLAN_CIPHER_SUITE_WEP104,
4699 WLAN_CIPHER_SUITE_TKIP,
4700 WLAN_CIPHER_SUITE_CCMP,
4701 WL1271_CIPHER_SUITE_GEM,
4702 };
4703
1e2b7976
JO		 4704 /* The tx descriptor buffer and the TKIP space. */
4705 wl->hw->extra_tx_headroom = WL1271_TKIP_IV_SPACE +
4706 sizeof(struct wl1271_tx_hw_descr);
f5fc0f86
LC		 4707
4708 /* unit us */
4709 /* FIXME: find a proper value */
4710 wl->hw->channel_change_time = 10000;
50c500ad 4711 wl->hw->max_listen_interval = wl->conf.conn.max_listen_interval;
f5fc0f86
LC		 4712
4713 wl->hw->flags = IEEE80211_HW_SIGNAL_DBM |
03442a33 4714 IEEE80211_HW_BEACON_FILTER |
0a34332f 4715 IEEE80211_HW_SUPPORTS_PS |
4695dc91 4716 IEEE80211_HW_SUPPORTS_UAPSD |
a9af092b 4717 IEEE80211_HW_HAS_RATE_CONTROL |
00236aed 4718 IEEE80211_HW_CONNECTION_MONITOR |
62c0740c 4719 IEEE80211_HW_SUPPORTS_CQM_RSSI |
25eaea30 4720 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
fcd23b63 4721 IEEE80211_HW_SPECTRUM_MGMT |
93f8c8e0
AN		 4722 IEEE80211_HW_AP_LINK_PS |
4723 IEEE80211_HW_AMPDU_AGGREGATION |
4724 IEEE80211_HW_TX_AMPDU_SETUP_IN_HW;
f5fc0f86 4725
7a55724e
JO		 4726 wl->hw->wiphy->cipher_suites = cipher_suites;
4727 wl->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
4728
e0d8bbf0 4729 wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
045c745f
EP		 4730 BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP) |
4731 BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO);
f5fc0f86 4732 wl->hw->wiphy->max_scan_ssids = 1;
221737d2
LC		 4733 wl->hw->wiphy->max_sched_scan_ssids = 16;
4734 wl->hw->wiphy->max_match_sets = 16;
ea559b46
GE		 4735 /*
4736 * Maximum length of elements in scanning probe request templates
4737 * should be the maximum length possible for a template, without
4738 * the IEEE80211 header of the template
4739 */
154037d1 4740 wl->hw->wiphy->max_scan_ie_len = WL1271_CMD_TEMPL_DFLT_SIZE -
ea559b46 4741 sizeof(struct ieee80211_header);
a8aaaf53 4742
c9e79a47
LC		 4743 wl->hw->wiphy->max_sched_scan_ie_len = WL1271_CMD_TEMPL_DFLT_SIZE -
4744 sizeof(struct ieee80211_header);
4745
1ec23f7f
EP		 4746 wl->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
4747
4a31c11c
LC		 4748 /* make sure all our channels fit in the scanned_ch bitmask */
4749 BUILD_BUG_ON(ARRAY_SIZE(wl1271_channels) +
4750 ARRAY_SIZE(wl1271_channels_5ghz) >
4751 WL1271_MAX_CHANNELS);
a8aaaf53
LC		 4752 /*
4753 * We keep local copies of the band structs because we need to
4754 * modify them on a per-device basis.
4755 */
4756 memcpy(&wl->bands[IEEE80211_BAND_2GHZ], &wl1271_band_2ghz,
4757 sizeof(wl1271_band_2ghz));
4758 memcpy(&wl->bands[IEEE80211_BAND_5GHZ], &wl1271_band_5ghz,
4759 sizeof(wl1271_band_5ghz));
4760
4761 wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
4762 &wl->bands[IEEE80211_BAND_2GHZ];
4763 wl->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
4764 &wl->bands[IEEE80211_BAND_5GHZ];
1ebec3d7 4765
12bd8949 4766 wl->hw->queues = 4;
31627dc5 4767 wl->hw->max_rates = 1;
12bd8949 4768
b7417d93
JO		 4769 wl->hw->wiphy->reg_notifier = wl1271_reg_notify;
4770
8197b711 4771 SET_IEEE80211_DEV(wl->hw, wl1271_wl_to_dev(wl));
f5fc0f86 4772
f84f7d78 4773 wl->hw->sta_data_size = sizeof(struct wl1271_station);
87fbcb0f 4774 wl->hw->vif_data_size = sizeof(struct wl12xx_vif);
f84f7d78 4775
4c9cfa78
LC		 4776 wl->hw->max_rx_aggregation_subframes = 8;
4777
f5fc0f86
LC		 4778 return 0;
4779}
50b3eb4b 4780EXPORT_SYMBOL_GPL(wl1271_init_ieee80211);
f5fc0f86 4781
f5fc0f86 4782#define WL1271_DEFAULT_CHANNEL 0
c332a4b8 4783
2d5e82b8 4784struct ieee80211_hw *wl1271_alloc_hw(void)
f5fc0f86 4785{
f5fc0f86 4786 struct ieee80211_hw *hw;
3b56dd6a 4787 struct platform_device *plat_dev = NULL;
f5fc0f86 4788 struct wl1271 *wl;
a8c0ddb5 4789 int i, j, ret;
1f37cbc9 4790 unsigned int order;
f5fc0f86 4791
f80c2d12
AN		 4792 BUILD_BUG_ON(AP_MAX_LINKS > WL12XX_MAX_LINKS);
4793
f5fc0f86
LC		 4794 hw = ieee80211_alloc_hw(sizeof(*wl), &wl1271_ops);
4795 if (!hw) {
4796 wl1271_error("could not alloc ieee80211_hw");
a1dd8187 4797 ret = -ENOMEM;
3b56dd6a
TP		 4798 goto err_hw_alloc;
4799 }
4800
929ebd30 4801 plat_dev = kmemdup(&wl1271_device, sizeof(wl1271_device), GFP_KERNEL);
3b56dd6a
TP		 4802 if (!plat_dev) {
4803 wl1271_error("could not allocate platform_device");
4804 ret = -ENOMEM;
4805 goto err_plat_alloc;
f5fc0f86
LC		 4806 }
4807
4808 wl = hw->priv;
4809 memset(wl, 0, sizeof(*wl));
4810
01c09162
JO		 4811 INIT_LIST_HEAD(&wl->list);
4812
f5fc0f86 4813 wl->hw = hw;
3b56dd6a 4814 wl->plat_dev = plat_dev;
f5fc0f86 4815
6742f554
JO		 4816 for (i = 0; i < NUM_TX_QUEUES; i++)
4817 skb_queue_head_init(&wl->tx_queue[i]);
f5fc0f86 4818
a8c0ddb5
AN		 4819 for (i = 0; i < NUM_TX_QUEUES; i++)
4820 for (j = 0; j < AP_MAX_LINKS; j++)
4821 skb_queue_head_init(&wl->links[j].tx_queue[i]);
4822
a620865e
IY		 4823 skb_queue_head_init(&wl->deferred_rx_queue);
4824 skb_queue_head_init(&wl->deferred_tx_queue);
4825
37b70a81 4826 INIT_DELAYED_WORK(&wl->elp_work, wl1271_elp_work);
90494a90 4827 INIT_DELAYED_WORK(&wl->pspoll_work, wl1271_pspoll_work);
a620865e 4828 INIT_WORK(&wl->netstack_work, wl1271_netstack_work);
117b38d0
JO		 4829 INIT_WORK(&wl->tx_work, wl1271_tx_work);
4830 INIT_WORK(&wl->recovery_work, wl1271_recovery_work);
4831 INIT_DELAYED_WORK(&wl->scan_complete_work, wl1271_scan_complete_work);
77ddaa10
EP		 4832 INIT_WORK(&wl->rx_streaming_enable_work,
4833 wl1271_rx_streaming_enable_work);
4834 INIT_WORK(&wl->rx_streaming_disable_work,
4835 wl1271_rx_streaming_disable_work);
4836
92ef8960
EP		 4837 wl->freezable_wq = create_freezable_workqueue("wl12xx_wq");
4838 if (!wl->freezable_wq) {
4839 ret = -ENOMEM;
4840 goto err_hw;
4841 }
4842
f5fc0f86 4843 wl->channel = WL1271_DEFAULT_CHANNEL;
60e84c2e 4844 wl->beacon_int = WL1271_DEFAULT_BEACON_INT;
f5fc0f86 4845 wl->default_key = 0;
f5fc0f86 4846 wl->rx_counter = 0;
19ad0715 4847 wl->psm_entry_retry = 0;
f5fc0f86 4848 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
8a5a37a6 4849 wl->band = IEEE80211_BAND_2GHZ;
b771eee5 4850 wl->vif = NULL;
830fb67b 4851 wl->flags = 0;
7fc3a864 4852 wl->sg_enabled = true;
d717fd61 4853 wl->hw_pg_ver = -1;
a8c0ddb5 4854 wl->last_tx_hlid = 0;
b622d992
AN		 4855 wl->ap_ps_map = 0;
4856 wl->ap_fw_ps_map = 0;
606ea9fa 4857 wl->quirks = 0;
341b7cde 4858 wl->platform_quirks = 0;
33c2c06c 4859 wl->sched_scanning = false;
b992c682
OK		 4860 wl->tx_security_seq = 0;
4861 wl->tx_security_last_seq_lsb = 0;
e9eb8cbe 4862 wl->tx_spare_blocks = TX_HW_BLOCK_SPARE_DEFAULT;
7f097988 4863 wl->role_id = WL12XX_INVALID_ROLE_ID;
f4df1bd5 4864 wl->system_hlid = WL12XX_SYSTEM_HLID;
7f097988 4865 wl->sta_hlid = WL12XX_INVALID_LINK_ID;
04e8079c
EP		 4866 wl->dev_role_id = WL12XX_INVALID_ROLE_ID;
4867 wl->dev_hlid = WL12XX_INVALID_LINK_ID;
712e9bf7 4868 wl->session_counter = 0;
e51ae9be
AN		 4869 wl->ap_bcast_hlid = WL12XX_INVALID_LINK_ID;
4870 wl->ap_global_hlid = WL12XX_INVALID_LINK_ID;
da03209e 4871 wl->active_sta_count = 0;
77ddaa10
EP		 4872 setup_timer(&wl->rx_streaming_timer, wl1271_rx_streaming_timer,
4873 (unsigned long) wl);
95dac04f
IY		 4874 wl->fwlog_size = 0;
4875 init_waitqueue_head(&wl->fwlog_waitq);
f5fc0f86 4876
f4df1bd5
EP		 4877 /* The system link is always allocated */
4878 __set_bit(WL12XX_SYSTEM_HLID, wl->links_map);
4879
25eeb9e3 4880 memset(wl->tx_frames_map, 0, sizeof(wl->tx_frames_map));
be7078c2 4881 for (i = 0; i < ACX_TX_DESCRIPTORS; i++)
f5fc0f86
LC		 4882 wl->tx_frames[i] = NULL;
4883
4884 spin_lock_init(&wl->wl_lock);
4885
f5fc0f86
LC		 4886 wl->state = WL1271_STATE_OFF;
4887 mutex_init(&wl->mutex);
4888
c332a4b8
TP		 4889 /* Apply default driver configuration. */
4890 wl1271_conf_init(wl);
af7fbb28
EP		 4891 wl->bitrate_masks[IEEE80211_BAND_2GHZ] = wl->conf.tx.basic_rate;
4892 wl->bitrate_masks[IEEE80211_BAND_5GHZ] = wl->conf.tx.basic_rate_5;
c332a4b8 4893
1f37cbc9
IY		 4894 order = get_order(WL1271_AGGR_BUFFER_SIZE);
4895 wl->aggr_buf = (u8 *)__get_free_pages(GFP_KERNEL, order);
4896 if (!wl->aggr_buf) {
4897 ret = -ENOMEM;
92ef8960 4898 goto err_wq;
1f37cbc9
IY		 4899 }
4900
990f5de7
IY		 4901 wl->dummy_packet = wl12xx_alloc_dummy_packet(wl);
4902 if (!wl->dummy_packet) {
4903 ret = -ENOMEM;
4904 goto err_aggr;
4905 }
4906
95dac04f
IY		 4907 /* Allocate one page for the FW log */
4908 wl->fwlog = (u8 *)get_zeroed_page(GFP_KERNEL);
4909 if (!wl->fwlog) {
4910 ret = -ENOMEM;
4911 goto err_dummy_packet;
4912 }
4913
a1dd8187 4914 /* Register platform device */
3b56dd6a 4915 ret = platform_device_register(wl->plat_dev);
a1dd8187
JO		 4916 if (ret) {
4917 wl1271_error("couldn't register platform device");
95dac04f 4918 goto err_fwlog;
a1dd8187 4919 }
3b56dd6a 4920 dev_set_drvdata(&wl->plat_dev->dev, wl);
a1dd8187 4921
7fc3a864 4922 /* Create sysfs file to control bt coex state */
3b56dd6a 4923 ret = device_create_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
7fc3a864
JO		 4924 if (ret < 0) {
4925 wl1271_error("failed to create sysfs file bt_coex_state");
4926 goto err_platform;
4927 }
a1dd8187 4928
d717fd61
JO		 4929 /* Create sysfs file to get HW PG version */
4930 ret = device_create_file(&wl->plat_dev->dev, &dev_attr_hw_pg_ver);
4931 if (ret < 0) {
4932 wl1271_error("failed to create sysfs file hw_pg_ver");
4933 goto err_bt_coex_state;
4934 }
4935
95dac04f
IY		 4936 /* Create sysfs file for the FW log */
4937 ret = device_create_bin_file(&wl->plat_dev->dev, &fwlog_attr);
4938 if (ret < 0) {
4939 wl1271_error("failed to create sysfs file fwlog");
4940 goto err_hw_pg_ver;
4941 }
4942
c332a4b8 4943 return hw;
a1dd8187 4944
95dac04f
IY		 4945err_hw_pg_ver:
4946 device_remove_file(&wl->plat_dev->dev, &dev_attr_hw_pg_ver);
4947
d717fd61
JO		 4948err_bt_coex_state:
4949 device_remove_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
4950
7fc3a864 4951err_platform:
3b56dd6a 4952 platform_device_unregister(wl->plat_dev);
7fc3a864 4953
95dac04f
IY		 4954err_fwlog:
4955 free_page((unsigned long)wl->fwlog);
4956
990f5de7
IY		 4957err_dummy_packet:
4958 dev_kfree_skb(wl->dummy_packet);
4959
1f37cbc9
IY		 4960err_aggr:
4961 free_pages((unsigned long)wl->aggr_buf, order);
4962
92ef8960
EP		 4963err_wq:
4964 destroy_workqueue(wl->freezable_wq);
4965
a1dd8187 4966err_hw:
3b56dd6a
TP		 4967 wl1271_debugfs_exit(wl);
4968 kfree(plat_dev);
4969
4970err_plat_alloc:
4971 ieee80211_free_hw(hw);
4972
4973err_hw_alloc:
a1dd8187 4974
a1dd8187 4975 return ERR_PTR(ret);
c332a4b8 4976}
50b3eb4b 4977EXPORT_SYMBOL_GPL(wl1271_alloc_hw);
c332a4b8
TP		 4978
4979int wl1271_free_hw(struct wl1271 *wl)
4980{
95dac04f
IY		 4981 /* Unblock any fwlog readers */
4982 mutex_lock(&wl->mutex);
4983 wl->fwlog_size = -1;
4984 wake_up_interruptible_all(&wl->fwlog_waitq);
4985 mutex_unlock(&wl->mutex);
4986
4987 device_remove_bin_file(&wl->plat_dev->dev, &fwlog_attr);
6f07b72a
GK		 4988
4989 device_remove_file(&wl->plat_dev->dev, &dev_attr_hw_pg_ver);
4990
4991 device_remove_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
3b56dd6a 4992 platform_device_unregister(wl->plat_dev);
95dac04f 4993 free_page((unsigned long)wl->fwlog);
990f5de7 4994 dev_kfree_skb(wl->dummy_packet);
1f37cbc9
IY		 4995 free_pages((unsigned long)wl->aggr_buf,
4996 get_order(WL1271_AGGR_BUFFER_SIZE));
3b56dd6a 4997 kfree(wl->plat_dev);
c332a4b8
TP		 4998
4999 wl1271_debugfs_exit(wl);
5000
c332a4b8
TP		 5001 vfree(wl->fw);
5002 wl->fw = NULL;
5003 kfree(wl->nvs);
5004 wl->nvs = NULL;
5005
5006 kfree(wl->fw_status);
5007 kfree(wl->tx_res_if);
92ef8960 5008 destroy_workqueue(wl->freezable_wq);
c332a4b8
TP		 5009
5010 ieee80211_free_hw(wl->hw);
5011
5012 return 0;
5013}
50b3eb4b
TP		 5014EXPORT_SYMBOL_GPL(wl1271_free_hw);
5015
491bbd6b 5016u32 wl12xx_debug_level = DEBUG_NONE;
17c1755c 5017EXPORT_SYMBOL_GPL(wl12xx_debug_level);
491bbd6b 5018module_param_named(debug_level, wl12xx_debug_level, uint, S_IRUSR | S_IWUSR);
17c1755c
EP		 5019MODULE_PARM_DESC(debug_level, "wl12xx debugging level");
5020
95dac04f
IY		 5021module_param_named(fwlog, fwlog_param, charp, 0);
5022MODULE_PARM_DESC(keymap,
5023 "FW logger options: continuous, ondemand, dbgpins or disable");
5024
2a5bff09
EP		 5025module_param(bug_on_recovery, bool, S_IRUSR | S_IWUSR);
5026MODULE_PARM_DESC(bug_on_recovery, "BUG() on fw recovery");
5027
50b3eb4b 5028MODULE_LICENSE("GPL");
b1a48cab 5029MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
50b3eb4b 5030MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
kernel source for telekom puls (alcatel/mediatek)