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wl12xx: move dev_role_id into wlvif
[linux-block.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{
0603d891
EP		 405 struct ieee80211_vif *vif = wl->vif; /* TODO: get as param */
406 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
ef4b29e9 407 int ret;
0603d891 408
ef4b29e9
EP		 409 if (operstate != IF_OPER_UP)
410 return 0;
411
412 if (test_and_set_bit(WL1271_FLAG_STA_STATE_SENT, &wl->flags))
413 return 0;
414
b67476ef 415 ret = wl12xx_cmd_set_peer_state(wl, wl->sta_hlid);
ef4b29e9
EP		 416 if (ret < 0)
417 return ret;
418
0603d891 419 wl12xx_croc(wl, wlvif->role_id);
251c177f 420
ef4b29e9
EP		 421 wl1271_info("Association completed.");
422 return 0;
423}
c2c192ac
JO		 424static int wl1271_dev_notify(struct notifier_block *me, unsigned long what,
425 void *arg)
426{
427 struct net_device *dev = arg;
428 struct wireless_dev *wdev;
429 struct wiphy *wiphy;
430 struct ieee80211_hw *hw;
431 struct wl1271 *wl;
432 struct wl1271 *wl_temp;
433 int ret = 0;
434
435 /* Check that this notification is for us. */
436 if (what != NETDEV_CHANGE)
437 return NOTIFY_DONE;
438
439 wdev = dev->ieee80211_ptr;
440 if (wdev == NULL)
441 return NOTIFY_DONE;
442
443 wiphy = wdev->wiphy;
444 if (wiphy == NULL)
445 return NOTIFY_DONE;
446
447 hw = wiphy_priv(wiphy);
448 if (hw == NULL)
449 return NOTIFY_DONE;
450
451 wl_temp = hw->priv;
f9f774c1 452 mutex_lock(&wl_list_mutex);
c2c192ac
JO		 453 list_for_each_entry(wl, &wl_list, list) {
454 if (wl == wl_temp)
455 break;
456 }
f9f774c1 457 mutex_unlock(&wl_list_mutex);
c2c192ac
JO		 458 if (wl != wl_temp)
459 return NOTIFY_DONE;
460
461 mutex_lock(&wl->mutex);
462
463 if (wl->state == WL1271_STATE_OFF)
464 goto out;
465
466 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
467 goto out;
468
a620865e 469 ret = wl1271_ps_elp_wakeup(wl);
c2c192ac
JO		 470 if (ret < 0)
471 goto out;
472
ef4b29e9 473 wl1271_check_operstate(wl, dev->operstate);
c2c192ac
JO		 474
475 wl1271_ps_elp_sleep(wl);
476
477out:
478 mutex_unlock(&wl->mutex);
479
480 return NOTIFY_OK;
481}
482
b7417d93 483static int wl1271_reg_notify(struct wiphy *wiphy,
573c67cf
LC		 484 struct regulatory_request *request)
485{
b7417d93
JO		 486 struct ieee80211_supported_band *band;
487 struct ieee80211_channel *ch;
488 int i;
489
490 band = wiphy->bands[IEEE80211_BAND_5GHZ];
491 for (i = 0; i < band->n_channels; i++) {
492 ch = &band->channels[i];
493 if (ch->flags & IEEE80211_CHAN_DISABLED)
494 continue;
495
496 if (ch->flags & IEEE80211_CHAN_RADAR)
497 ch->flags |= IEEE80211_CHAN_NO_IBSS |
498 IEEE80211_CHAN_PASSIVE_SCAN;
499
500 }
501
502 return 0;
503}
504
77ddaa10
EP		 505static int wl1271_set_rx_streaming(struct wl1271 *wl, bool enable)
506{
507 int ret = 0;
508
509 /* we should hold wl->mutex */
510 ret = wl1271_acx_ps_rx_streaming(wl, enable);
511 if (ret < 0)
512 goto out;
513
514 if (enable)
515 set_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags);
516 else
517 clear_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags);
518out:
519 return ret;
520}
521
522/*
523 * this function is being called when the rx_streaming interval
524 * has beed changed or rx_streaming should be disabled
525 */
526int wl1271_recalc_rx_streaming(struct wl1271 *wl)
527{
528 int ret = 0;
529 int period = wl->conf.rx_streaming.interval;
530
531 /* don't reconfigure if rx_streaming is disabled */
532 if (!test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags))
533 goto out;
534
535 /* reconfigure/disable according to new streaming_period */
536 if (period &&
537 test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags) &&
538 (wl->conf.rx_streaming.always ||
539 test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags)))
540 ret = wl1271_set_rx_streaming(wl, true);
541 else {
542 ret = wl1271_set_rx_streaming(wl, false);
543 /* don't cancel_work_sync since we might deadlock */
544 del_timer_sync(&wl->rx_streaming_timer);
545 }
546out:
547 return ret;
548}
549
550static void wl1271_rx_streaming_enable_work(struct work_struct *work)
551{
552 int ret;
553 struct wl1271 *wl =
554 container_of(work, struct wl1271, rx_streaming_enable_work);
555
556 mutex_lock(&wl->mutex);
557
558 if (test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags) ||
559 !test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags) ||
560 (!wl->conf.rx_streaming.always &&
561 !test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags)))
562 goto out;
563
564 if (!wl->conf.rx_streaming.interval)
565 goto out;
566
567 ret = wl1271_ps_elp_wakeup(wl);
568 if (ret < 0)
569 goto out;
570
571 ret = wl1271_set_rx_streaming(wl, true);
572 if (ret < 0)
573 goto out_sleep;
574
575 /* stop it after some time of inactivity */
576 mod_timer(&wl->rx_streaming_timer,
577 jiffies + msecs_to_jiffies(wl->conf.rx_streaming.duration));
578
579out_sleep:
580 wl1271_ps_elp_sleep(wl);
581out:
582 mutex_unlock(&wl->mutex);
583}
584
585static void wl1271_rx_streaming_disable_work(struct work_struct *work)
586{
587 int ret;
588 struct wl1271 *wl =
589 container_of(work, struct wl1271, rx_streaming_disable_work);
590
591 mutex_lock(&wl->mutex);
592
593 if (!test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags))
594 goto out;
595
596 ret = wl1271_ps_elp_wakeup(wl);
597 if (ret < 0)
598 goto out;
599
600 ret = wl1271_set_rx_streaming(wl, false);
601 if (ret)
602 goto out_sleep;
603
604out_sleep:
605 wl1271_ps_elp_sleep(wl);
606out:
607 mutex_unlock(&wl->mutex);
608}
609
610static void wl1271_rx_streaming_timer(unsigned long data)
611{
612 struct wl1271 *wl = (struct wl1271 *)data;
613 ieee80211_queue_work(wl->hw, &wl->rx_streaming_disable_work);
614}
615
8a08048a
JO		 616static void wl1271_conf_init(struct wl1271 *wl)
617{
2b60100b
JO		 618
619 /*
620 * This function applies the default configuration to the driver. This
621 * function is invoked upon driver load (spi probe.)
622 *
623 * The configuration is stored in a run-time structure in order to
624 * facilitate for run-time adjustment of any of the parameters. Making
625 * changes to the configuration structure will apply the new values on
626 * the next interface up (wl1271_op_start.)
627 */
628
629 /* apply driver default configuration */
8a08048a 630 memcpy(&wl->conf, &default_conf, sizeof(default_conf));
2b60100b 631
95dac04f
IY		 632 /* Adjust settings according to optional module parameters */
633 if (fwlog_param) {
634 if (!strcmp(fwlog_param, "continuous")) {
635 wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS;
636 } else if (!strcmp(fwlog_param, "ondemand")) {
637 wl->conf.fwlog.mode = WL12XX_FWLOG_ON_DEMAND;
638 } else if (!strcmp(fwlog_param, "dbgpins")) {
639 wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS;
640 wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_DBG_PINS;
641 } else if (!strcmp(fwlog_param, "disable")) {
642 wl->conf.fwlog.mem_blocks = 0;
643 wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_NONE;
644 } else {
645 wl1271_error("Unknown fwlog parameter %s", fwlog_param);
646 }
647 }
648}
2b60100b 649
f5fc0f86
LC		 650static int wl1271_plt_init(struct wl1271 *wl)
651{
12419cce
LC		 652 struct conf_tx_ac_category *conf_ac;
653 struct conf_tx_tid *conf_tid;
654 int ret, i;
f5fc0f86 655
49d750ca
SL		 656 if (wl->chip.id == CHIP_ID_1283_PG20)
657 ret = wl128x_cmd_general_parms(wl);
658 else
659 ret = wl1271_cmd_general_parms(wl);
4a90406b 660 if (ret < 0)
cc7defa3
LC		 661 return ret;
662
49d750ca
SL		 663 if (wl->chip.id == CHIP_ID_1283_PG20)
664 ret = wl128x_cmd_radio_parms(wl);
665 else
666 ret = wl1271_cmd_radio_parms(wl);
4a90406b 667 if (ret < 0)
cc7defa3
LC		 668 return ret;
669
49d750ca
SL		 670 if (wl->chip.id != CHIP_ID_1283_PG20) {
671 ret = wl1271_cmd_ext_radio_parms(wl);
672 if (ret < 0)
673 return ret;
674 }
644a4860
JO		 675 if (ret < 0)
676 return ret;
677
48a61477
SL		 678 /* Chip-specific initializations */
679 ret = wl1271_chip_specific_init(wl);
680 if (ret < 0)
681 return ret;
682
92c77c73 683 ret = wl1271_init_templates_config(wl);
12419cce
LC		 684 if (ret < 0)
685 return ret;
686
f5fc0f86
LC		 687 ret = wl1271_acx_init_mem_config(wl);
688 if (ret < 0)
689 return ret;
690
12419cce
LC		 691 /* PHY layer config */
692 ret = wl1271_init_phy_config(wl);
693 if (ret < 0)
694 goto out_free_memmap;
695
696 ret = wl1271_acx_dco_itrim_params(wl);
697 if (ret < 0)
698 goto out_free_memmap;
699
700 /* Initialize connection monitoring thresholds */
0603d891 701 ret = wl1271_acx_conn_monit_params(wl, NULL, false); /* TODO: fix */
12419cce
LC		 702 if (ret < 0)
703 goto out_free_memmap;
704
705 /* Bluetooth WLAN coexistence */
706 ret = wl1271_init_pta(wl);
707 if (ret < 0)
708 goto out_free_memmap;
709
ff86843d
SL		 710 /* FM WLAN coexistence */
711 ret = wl1271_acx_fm_coex(wl);
712 if (ret < 0)
713 goto out_free_memmap;
714
12419cce
LC		 715 /* Energy detection */
716 ret = wl1271_init_energy_detection(wl);
717 if (ret < 0)
718 goto out_free_memmap;
719
7f097988 720 ret = wl12xx_acx_mem_cfg(wl);
1ec610eb
GK		 721 if (ret < 0)
722 goto out_free_memmap;
723
12419cce 724 /* Default fragmentation threshold */
68d069c4 725 ret = wl1271_acx_frag_threshold(wl, wl->conf.tx.frag_threshold);
12419cce
LC		 726 if (ret < 0)
727 goto out_free_memmap;
728
9987a9da
JO		 729 /* Default TID/AC configuration */
730 BUG_ON(wl->conf.tx.tid_conf_count != wl->conf.tx.ac_conf_count);
12419cce 731 for (i = 0; i < wl->conf.tx.tid_conf_count; i++) {
9987a9da 732 conf_ac = &wl->conf.tx.ac_conf[i];
0603d891
EP		 733 /* TODO: fix */
734 ret = wl1271_acx_ac_cfg(wl, NULL, conf_ac->ac, conf_ac->cw_min,
9987a9da
JO		 735 conf_ac->cw_max, conf_ac->aifsn,
736 conf_ac->tx_op_limit);
737 if (ret < 0)
738 goto out_free_memmap;
739
12419cce 740 conf_tid = &wl->conf.tx.tid_conf[i];
0603d891
EP		 741 /* TODO: fix */
742 ret = wl1271_acx_tid_cfg(wl, NULL, conf_tid->queue_id,
12419cce
LC		 743 conf_tid->channel_type,
744 conf_tid->tsid,
745 conf_tid->ps_scheme,
746 conf_tid->ack_policy,
747 conf_tid->apsd_conf[0],
748 conf_tid->apsd_conf[1]);
749 if (ret < 0)
750 goto out_free_memmap;
751 }
752
12419cce 753 /* Enable data path */
94210897 754 ret = wl1271_cmd_data_path(wl, 1);
f5fc0f86 755 if (ret < 0)
12419cce
LC		 756 goto out_free_memmap;
757
758 /* Configure for CAM power saving (ie. always active) */
759 ret = wl1271_acx_sleep_auth(wl, WL1271_PSM_CAM);
760 if (ret < 0)
761 goto out_free_memmap;
762
763 /* configure PM */
764 ret = wl1271_acx_pm_config(wl);
765 if (ret < 0)
766 goto out_free_memmap;
f5fc0f86
LC		 767
768 return 0;
12419cce
LC		 769
770 out_free_memmap:
771 kfree(wl->target_mem_map);
772 wl->target_mem_map = NULL;
773
774 return ret;
f5fc0f86
LC		 775}
776
9b17f1b3 777static void wl12xx_irq_ps_regulate_link(struct wl1271 *wl, u8 hlid, u8 tx_pkts)
b622d992 778{
da03209e 779 bool fw_ps, single_sta;
b622d992
AN		 780
781 /* only regulate station links */
782 if (hlid < WL1271_AP_STA_HLID_START)
783 return;
784
785 fw_ps = test_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
da03209e 786 single_sta = (wl->active_sta_count == 1);
b622d992
AN		 787
788 /*
789 * Wake up from high level PS if the STA is asleep with too little
9b17f1b3 790 * packets in FW or if the STA is awake.
b622d992 791 */
9b17f1b3 792 if (!fw_ps || tx_pkts < WL1271_PS_STA_MAX_PACKETS)
b622d992
AN		 793 wl1271_ps_link_end(wl, hlid);
794
da03209e
AN		 795 /*
796 * Start high-level PS if the STA is asleep with enough blocks in FW.
797 * Make an exception if this is the only connected station. In this
798 * case FW-memory congestion is not a problem.
799 */
800 else if (!single_sta && fw_ps && tx_pkts >= WL1271_PS_STA_MAX_PACKETS)
b622d992
AN		 801 wl1271_ps_link_start(wl, hlid, true);
802}
803
9b17f1b3
AN		 804bool wl1271_is_active_sta(struct wl1271 *wl, u8 hlid)
805{
04216da3
AN		 806 int id;
807
808 /* global/broadcast "stations" are always active */
809 if (hlid < WL1271_AP_STA_HLID_START)
810 return true;
811
812 id = hlid - WL1271_AP_STA_HLID_START;
9b17f1b3
AN		 813 return test_bit(id, wl->ap_hlid_map);
814}
815
816static void wl12xx_irq_update_links_status(struct wl1271 *wl,
817 struct wl12xx_fw_status *status)
b622d992
AN		 818{
819 u32 cur_fw_ps_map;
9b17f1b3
AN		 820 u8 hlid, cnt;
821
822 /* TODO: also use link_fast_bitmap here */
b622d992
AN		 823
824 cur_fw_ps_map = le32_to_cpu(status->link_ps_bitmap);
825 if (wl->ap_fw_ps_map != cur_fw_ps_map) {
826 wl1271_debug(DEBUG_PSM,
827 "link ps prev 0x%x cur 0x%x changed 0x%x",
828 wl->ap_fw_ps_map, cur_fw_ps_map,
829 wl->ap_fw_ps_map ^ cur_fw_ps_map);
830
831 wl->ap_fw_ps_map = cur_fw_ps_map;
832 }
833
834 for (hlid = WL1271_AP_STA_HLID_START; hlid < AP_MAX_LINKS; hlid++) {
9b17f1b3
AN		 835 if (!wl1271_is_active_sta(wl, hlid))
836 continue;
b622d992 837
9b17f1b3
AN		 838 cnt = status->tx_lnk_free_pkts[hlid] -
839 wl->links[hlid].prev_freed_pkts;
b622d992 840
9b17f1b3
AN		 841 wl->links[hlid].prev_freed_pkts =
842 status->tx_lnk_free_pkts[hlid];
843 wl->links[hlid].allocated_pkts -= cnt;
844
845 wl12xx_irq_ps_regulate_link(wl, hlid,
846 wl->links[hlid].allocated_pkts);
b622d992
AN		 847 }
848}
849
4d56ad9c
EP		 850static void wl12xx_fw_status(struct wl1271 *wl,
851 struct wl12xx_fw_status *status)
f5fc0f86 852{
536129c8
EP		 853 struct ieee80211_vif *vif = wl->vif; /* TODO: get as param */
854 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
ac5e1e39 855 struct timespec ts;
13b107dd 856 u32 old_tx_blk_count = wl->tx_blocks_available;
4d56ad9c 857 int avail, freed_blocks;
bf54e301 858 int i;
f5fc0f86 859
4d56ad9c 860 wl1271_raw_read(wl, FW_STATUS_ADDR, status, sizeof(*status), false);
13b107dd 861
f5fc0f86
LC		 862 wl1271_debug(DEBUG_IRQ, "intr: 0x%x (fw_rx_counter = %d, "
863 "drv_rx_counter = %d, tx_results_counter = %d)",
864 status->intr,
865 status->fw_rx_counter,
866 status->drv_rx_counter,
867 status->tx_results_counter);
868
bf54e301
AN		 869 for (i = 0; i < NUM_TX_QUEUES; i++) {
870 /* prevent wrap-around in freed-packets counter */
742246f8 871 wl->tx_allocated_pkts[i] -=
bf54e301
AN		 872 (status->tx_released_pkts[i] -
873 wl->tx_pkts_freed[i]) & 0xff;
874
875 wl->tx_pkts_freed[i] = status->tx_released_pkts[i];
876 }
877
bdf91cfa
AN		 878 /* prevent wrap-around in total blocks counter */
879 if (likely(wl->tx_blocks_freed <=
880 le32_to_cpu(status->total_released_blks)))
881 freed_blocks = le32_to_cpu(status->total_released_blks) -
882 wl->tx_blocks_freed;
883 else
884 freed_blocks = 0x100000000LL - wl->tx_blocks_freed +
885 le32_to_cpu(status->total_released_blks);
886
4d56ad9c 887 wl->tx_blocks_freed = le32_to_cpu(status->total_released_blks);
13b107dd 888
7bb5d6ce
AN		 889 wl->tx_allocated_blocks -= freed_blocks;
890
4d56ad9c 891 avail = le32_to_cpu(status->tx_total) - wl->tx_allocated_blocks;
13b107dd 892
4d56ad9c
EP		 893 /*
894 * The FW might change the total number of TX memblocks before
895 * we get a notification about blocks being released. Thus, the
896 * available blocks calculation might yield a temporary result
897 * which is lower than the actual available blocks. Keeping in
898 * mind that only blocks that were allocated can be moved from
899 * TX to RX, tx_blocks_available should never decrease here.
900 */
901 wl->tx_blocks_available = max((int)wl->tx_blocks_available,
902 avail);
f5fc0f86 903
a522550a 904 /* if more blocks are available now, tx work can be scheduled */
13b107dd 905 if (wl->tx_blocks_available > old_tx_blk_count)
a522550a 906 clear_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags);
f5fc0f86 907
4d56ad9c 908 /* for AP update num of allocated TX blocks per link and ps status */
536129c8 909 if (wlvif->bss_type == BSS_TYPE_AP_BSS)
9b17f1b3 910 wl12xx_irq_update_links_status(wl, status);
4d56ad9c 911
f5fc0f86 912 /* update the host-chipset time offset */
ac5e1e39
JO		 913 getnstimeofday(&ts);
914 wl->time_offset = (timespec_to_ns(&ts) >> 10) -
915 (s64)le32_to_cpu(status->fw_localtime);
f5fc0f86
LC		 916}
917
a620865e
IY		 918static void wl1271_flush_deferred_work(struct wl1271 *wl)
919{
920 struct sk_buff *skb;
921
922 /* Pass all received frames to the network stack */
923 while ((skb = skb_dequeue(&wl->deferred_rx_queue)))
924 ieee80211_rx_ni(wl->hw, skb);
925
926 /* Return sent skbs to the network stack */
927 while ((skb = skb_dequeue(&wl->deferred_tx_queue)))
c27d3acc 928 ieee80211_tx_status_ni(wl->hw, skb);
a620865e
IY		 929}
930
931static void wl1271_netstack_work(struct work_struct *work)
932{
933 struct wl1271 *wl =
934 container_of(work, struct wl1271, netstack_work);
935
936 do {
937 wl1271_flush_deferred_work(wl);
938 } while (skb_queue_len(&wl->deferred_rx_queue));
939}
1e73eb62 940
a620865e
IY		 941#define WL1271_IRQ_MAX_LOOPS 256
942
943irqreturn_t wl1271_irq(int irq, void *cookie)
f5fc0f86 944{
f5fc0f86 945 int ret;
c15f63bf 946 u32 intr;
1e73eb62 947 int loopcount = WL1271_IRQ_MAX_LOOPS;
a620865e
IY		 948 struct wl1271 *wl = (struct wl1271 *)cookie;
949 bool done = false;
950 unsigned int defer_count;
b07d4037
IY		 951 unsigned long flags;
952
953 /* TX might be handled here, avoid redundant work */
954 set_bit(WL1271_FLAG_TX_PENDING, &wl->flags);
955 cancel_work_sync(&wl->tx_work);
f5fc0f86 956
341b7cde
IY		 957 /*
958 * In case edge triggered interrupt must be used, we cannot iterate
959 * more than once without introducing race conditions with the hardirq.
960 */
961 if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
962 loopcount = 1;
963
f5fc0f86
LC		 964 mutex_lock(&wl->mutex);
965
966 wl1271_debug(DEBUG_IRQ, "IRQ work");
967
1e73eb62 968 if (unlikely(wl->state == WL1271_STATE_OFF))
f5fc0f86
LC		 969 goto out;
970
a620865e 971 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 972 if (ret < 0)
973 goto out;
974
a620865e
IY		 975 while (!done && loopcount--) {
976 /*
977 * In order to avoid a race with the hardirq, clear the flag
978 * before acknowledging the chip. Since the mutex is held,
979 * wl1271_ps_elp_wakeup cannot be called concurrently.
980 */
981 clear_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags);
982 smp_mb__after_clear_bit();
1e73eb62 983
4d56ad9c
EP		 984 wl12xx_fw_status(wl, wl->fw_status);
985 intr = le32_to_cpu(wl->fw_status->intr);
a620865e 986 intr &= WL1271_INTR_MASK;
1e73eb62 987 if (!intr) {
a620865e 988 done = true;
1e73eb62
JO		 989 continue;
990 }
f5fc0f86 991
ccc83b04
EP		 992 if (unlikely(intr & WL1271_ACX_INTR_WATCHDOG)) {
993 wl1271_error("watchdog interrupt received! "
994 "starting recovery.");
baacb9ae 995 wl12xx_queue_recovery_work(wl);
ccc83b04
EP		 996
997 /* restarting the chip. ignore any other interrupt. */
998 goto out;
999 }
1000
a620865e 1001 if (likely(intr & WL1271_ACX_INTR_DATA)) {
1e73eb62 1002 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_DATA");
1fd2794f 1003
4d56ad9c 1004 wl12xx_rx(wl, wl->fw_status);
f5fc0f86 1005
a522550a 1006 /* Check if any tx blocks were freed */
b07d4037 1007 spin_lock_irqsave(&wl->wl_lock, flags);
a522550a 1008 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
f1a46384 1009 wl1271_tx_total_queue_count(wl) > 0) {
b07d4037 1010 spin_unlock_irqrestore(&wl->wl_lock, flags);
a522550a
IY		 1011 /*
1012 * In order to avoid starvation of the TX path,
1013 * call the work function directly.
1014 */
536129c8 1015 wl1271_tx_work_locked(wl, wl->vif);
b07d4037
IY		 1016 } else {
1017 spin_unlock_irqrestore(&wl->wl_lock, flags);
a522550a
IY		 1018 }
1019
8aad2464 1020 /* check for tx results */
4d56ad9c 1021 if (wl->fw_status->tx_results_counter !=
8aad2464
IY		 1022 (wl->tx_results_count & 0xff))
1023 wl1271_tx_complete(wl);
a620865e
IY		 1024
1025 /* Make sure the deferred queues don't get too long */
1026 defer_count = skb_queue_len(&wl->deferred_tx_queue) +
1027 skb_queue_len(&wl->deferred_rx_queue);
1028 if (defer_count > WL1271_DEFERRED_QUEUE_LIMIT)
1029 wl1271_flush_deferred_work(wl);
1e73eb62 1030 }
f5fc0f86 1031
1e73eb62
JO		 1032 if (intr & WL1271_ACX_INTR_EVENT_A) {
1033 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_A");
1034 wl1271_event_handle(wl, 0);
1035 }
f5fc0f86 1036
1e73eb62
JO		 1037 if (intr & WL1271_ACX_INTR_EVENT_B) {
1038 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_B");
1039 wl1271_event_handle(wl, 1);
1040 }
f5fc0f86 1041
1e73eb62
JO		 1042 if (intr & WL1271_ACX_INTR_INIT_COMPLETE)
1043 wl1271_debug(DEBUG_IRQ,
1044 "WL1271_ACX_INTR_INIT_COMPLETE");
f5fc0f86 1045
1e73eb62
JO		 1046 if (intr & WL1271_ACX_INTR_HW_AVAILABLE)
1047 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_HW_AVAILABLE");
c15f63bf 1048 }
f5fc0f86 1049
f5fc0f86
LC		 1050 wl1271_ps_elp_sleep(wl);
1051
1052out:
b07d4037
IY		 1053 spin_lock_irqsave(&wl->wl_lock, flags);
1054 /* In case TX was not handled here, queue TX work */
1055 clear_bit(WL1271_FLAG_TX_PENDING, &wl->flags);
1056 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
f1a46384 1057 wl1271_tx_total_queue_count(wl) > 0)
b07d4037
IY		 1058 ieee80211_queue_work(wl->hw, &wl->tx_work);
1059 spin_unlock_irqrestore(&wl->wl_lock, flags);
1060
f5fc0f86 1061 mutex_unlock(&wl->mutex);
a620865e
IY		 1062
1063 return IRQ_HANDLED;
f5fc0f86 1064}
a620865e 1065EXPORT_SYMBOL_GPL(wl1271_irq);
f5fc0f86 1066
f5fc0f86
LC		 1067static int wl1271_fetch_firmware(struct wl1271 *wl)
1068{
1069 const struct firmware *fw;
166d504e 1070 const char *fw_name;
f5fc0f86
LC		 1071 int ret;
1072
c302b2c9
AN		 1073 if (wl->chip.id == CHIP_ID_1283_PG20)
1074 fw_name = WL128X_FW_NAME;
1075 else
1076 fw_name = WL127X_FW_NAME;
166d504e
AN		 1077
1078 wl1271_debug(DEBUG_BOOT, "booting firmware %s", fw_name);
1079
1080 ret = request_firmware(&fw, fw_name, wl1271_wl_to_dev(wl));
f5fc0f86
LC		 1081
1082 if (ret < 0) {
1083 wl1271_error("could not get firmware: %d", ret);
1084 return ret;
1085 }
1086
1087 if (fw->size % 4) {
1088 wl1271_error("firmware size is not multiple of 32 bits: %zu",
1089 fw->size);
1090 ret = -EILSEQ;
1091 goto out;
1092 }
1093
166d504e 1094 vfree(wl->fw);
f5fc0f86 1095 wl->fw_len = fw->size;
1fba4974 1096 wl->fw = vmalloc(wl->fw_len);
f5fc0f86
LC		 1097
1098 if (!wl->fw) {
1099 wl1271_error("could not allocate memory for the firmware");
1100 ret = -ENOMEM;
1101 goto out;
1102 }
1103
1104 memcpy(wl->fw, fw->data, wl->fw_len);
f5fc0f86
LC		 1105 ret = 0;
1106
1107out:
1108 release_firmware(fw);
1109
1110 return ret;
1111}
1112
1113static int wl1271_fetch_nvs(struct wl1271 *wl)
1114{
1115 const struct firmware *fw;
1116 int ret;
1117
5aa42346 1118 ret = request_firmware(&fw, WL12XX_NVS_NAME, wl1271_wl_to_dev(wl));
f5fc0f86
LC		 1119
1120 if (ret < 0) {
1121 wl1271_error("could not get nvs file: %d", ret);
1122 return ret;
1123 }
1124
bc765bf3 1125 wl->nvs = kmemdup(fw->data, fw->size, GFP_KERNEL);
f5fc0f86
LC		 1126
1127 if (!wl->nvs) {
1128 wl1271_error("could not allocate memory for the nvs file");
1129 ret = -ENOMEM;
1130 goto out;
1131 }
1132
02fabb0e
JO		 1133 wl->nvs_len = fw->size;
1134
f5fc0f86
LC		 1135out:
1136 release_firmware(fw);
1137
1138 return ret;
1139}
1140
baacb9ae
IY		 1141void wl12xx_queue_recovery_work(struct wl1271 *wl)
1142{
1143 if (!test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
1144 ieee80211_queue_work(wl->hw, &wl->recovery_work);
1145}
1146
95dac04f
IY		 1147size_t wl12xx_copy_fwlog(struct wl1271 *wl, u8 *memblock, size_t maxlen)
1148{
1149 size_t len = 0;
1150
1151 /* The FW log is a length-value list, find where the log end */
1152 while (len < maxlen) {
1153 if (memblock[len] == 0)
1154 break;
1155 if (len + memblock[len] + 1 > maxlen)
1156 break;
1157 len += memblock[len] + 1;
1158 }
1159
1160 /* Make sure we have enough room */
1161 len = min(len, (size_t)(PAGE_SIZE - wl->fwlog_size));
1162
1163 /* Fill the FW log file, consumed by the sysfs fwlog entry */
1164 memcpy(wl->fwlog + wl->fwlog_size, memblock, len);
1165 wl->fwlog_size += len;
1166
1167 return len;
1168}
1169
1170static void wl12xx_read_fwlog_panic(struct wl1271 *wl)
1171{
1172 u32 addr;
1173 u32 first_addr;
1174 u8 *block;
1175
1176 if ((wl->quirks & WL12XX_QUIRK_FWLOG_NOT_IMPLEMENTED) ||
1177 (wl->conf.fwlog.mode != WL12XX_FWLOG_ON_DEMAND) ||
1178 (wl->conf.fwlog.mem_blocks == 0))
1179 return;
1180
1181 wl1271_info("Reading FW panic log");
1182
1183 block = kmalloc(WL12XX_HW_BLOCK_SIZE, GFP_KERNEL);
1184 if (!block)
1185 return;
1186
1187 /*
1188 * Make sure the chip is awake and the logger isn't active.
1189 * This might fail if the firmware hanged.
1190 */
1191 if (!wl1271_ps_elp_wakeup(wl))
1192 wl12xx_cmd_stop_fwlog(wl);
1193
1194 /* Read the first memory block address */
4d56ad9c
EP		 1195 wl12xx_fw_status(wl, wl->fw_status);
1196 first_addr = le32_to_cpu(wl->fw_status->log_start_addr);
95dac04f
IY		 1197 if (!first_addr)
1198 goto out;
1199
1200 /* Traverse the memory blocks linked list */
1201 addr = first_addr;
1202 do {
1203 memset(block, 0, WL12XX_HW_BLOCK_SIZE);
1204 wl1271_read_hwaddr(wl, addr, block, WL12XX_HW_BLOCK_SIZE,
1205 false);
1206
1207 /*
1208 * Memory blocks are linked to one another. The first 4 bytes
1209 * of each memory block hold the hardware address of the next
1210 * one. The last memory block points to the first one.
1211 */
4d56ad9c 1212 addr = le32_to_cpup((__le32 *)block);
95dac04f
IY		 1213 if (!wl12xx_copy_fwlog(wl, block + sizeof(addr),
1214 WL12XX_HW_BLOCK_SIZE - sizeof(addr)))
1215 break;
1216 } while (addr && (addr != first_addr));
1217
1218 wake_up_interruptible(&wl->fwlog_waitq);
1219
1220out:
1221 kfree(block);
1222}
1223
52b0e7a6
JO		 1224static void wl1271_recovery_work(struct work_struct *work)
1225{
1226 struct wl1271 *wl =
1227 container_of(work, struct wl1271, recovery_work);
1228
1229 mutex_lock(&wl->mutex);
1230
1231 if (wl->state != WL1271_STATE_ON)
1232 goto out;
1233
baacb9ae
IY		 1234 /* Avoid a recursive recovery */
1235 set_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
1236
95dac04f
IY		 1237 wl12xx_read_fwlog_panic(wl);
1238
52dcaf57
AN		 1239 wl1271_info("Hardware recovery in progress. FW ver: %s pc: 0x%x",
1240 wl->chip.fw_ver_str, wl1271_read32(wl, SCR_PAD4));
52b0e7a6 1241
2a5bff09
EP		 1242 BUG_ON(bug_on_recovery);
1243
b992c682
OK		 1244 /*
1245 * Advance security sequence number to overcome potential progress
1246 * in the firmware during recovery. This doens't hurt if the network is
1247 * not encrypted.
1248 */
1249 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags) ||
1250 test_bit(WL1271_FLAG_AP_STARTED, &wl->flags))
1251 wl->tx_security_seq += WL1271_TX_SQN_POST_RECOVERY_PADDING;
1252
7dece1c8
AN		 1253 /* Prevent spurious TX during FW restart */
1254 ieee80211_stop_queues(wl->hw);
1255
33c2c06c
LC		 1256 if (wl->sched_scanning) {
1257 ieee80211_sched_scan_stopped(wl->hw);
1258 wl->sched_scanning = false;
1259 }
1260
52b0e7a6 1261 /* reboot the chipset */
536129c8 1262 __wl1271_op_remove_interface(wl, wl->vif, false);
baacb9ae
IY		 1263
1264 clear_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
1265
52b0e7a6
JO		 1266 ieee80211_restart_hw(wl->hw);
1267
7dece1c8
AN		 1268 /*
1269 * Its safe to enable TX now - the queues are stopped after a request
1270 * to restart the HW.
1271 */
1272 ieee80211_wake_queues(wl->hw);
1273
52b0e7a6
JO		 1274out:
1275 mutex_unlock(&wl->mutex);
1276}
1277
f5fc0f86
LC		 1278static void wl1271_fw_wakeup(struct wl1271 *wl)
1279{
1280 u32 elp_reg;
1281
1282 elp_reg = ELPCTRL_WAKE_UP;
74621417 1283 wl1271_raw_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg);
f5fc0f86
LC		 1284}
1285
1286static int wl1271_setup(struct wl1271 *wl)
1287{
1288 wl->fw_status = kmalloc(sizeof(*wl->fw_status), GFP_KERNEL);
1289 if (!wl->fw_status)
1290 return -ENOMEM;
1291
1292 wl->tx_res_if = kmalloc(sizeof(*wl->tx_res_if), GFP_KERNEL);
1293 if (!wl->tx_res_if) {
1294 kfree(wl->fw_status);
1295 return -ENOMEM;
1296 }
1297
f5fc0f86
LC		 1298 return 0;
1299}
1300
1301static int wl1271_chip_wakeup(struct wl1271 *wl)
1302{
451de97a 1303 struct wl1271_partition_set partition;
f5fc0f86
LC		 1304 int ret = 0;
1305
01ac17ec 1306 msleep(WL1271_PRE_POWER_ON_SLEEP);
2cc78ff7
OBC		 1307 ret = wl1271_power_on(wl);
1308 if (ret < 0)
1309 goto out;
f5fc0f86 1310 msleep(WL1271_POWER_ON_SLEEP);
9b280722
TP		 1311 wl1271_io_reset(wl);
1312 wl1271_io_init(wl);
f5fc0f86
LC		 1313
1314 /* We don't need a real memory partition here, because we only want
1315 * to use the registers at this point. */
451de97a
JO		 1316 memset(&partition, 0, sizeof(partition));
1317 partition.reg.start = REGISTERS_BASE;
1318 partition.reg.size = REGISTERS_DOWN_SIZE;
1319 wl1271_set_partition(wl, &partition);
f5fc0f86
LC		 1320
1321 /* ELP module wake up */
1322 wl1271_fw_wakeup(wl);
1323
1324 /* whal_FwCtrl_BootSm() */
1325
1326 /* 0. read chip id from CHIP_ID */
7b048c52 1327 wl->chip.id = wl1271_read32(wl, CHIP_ID_B);
f5fc0f86
LC		 1328
1329 /* 1. check if chip id is valid */
1330
1331 switch (wl->chip.id) {
1332 case CHIP_ID_1271_PG10:
1333 wl1271_warning("chip id 0x%x (1271 PG10) support is obsolete",
1334 wl->chip.id);
1335
1336 ret = wl1271_setup(wl);
1337 if (ret < 0)
9ccd9217 1338 goto out;
f5fc0f86
LC		 1339 break;
1340 case CHIP_ID_1271_PG20:
1341 wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1271 PG20)",
1342 wl->chip.id);
1343
1344 ret = wl1271_setup(wl);
1345 if (ret < 0)
9ccd9217 1346 goto out;
f5fc0f86 1347 break;
0830ceed
SL		 1348 case CHIP_ID_1283_PG20:
1349 wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1283 PG20)",
1350 wl->chip.id);
1351
1352 ret = wl1271_setup(wl);
1353 if (ret < 0)
1354 goto out;
0c005048 1355
0da13da7
IY		 1356 if (wl1271_set_block_size(wl))
1357 wl->quirks |= WL12XX_QUIRK_BLOCKSIZE_ALIGNMENT;
0830ceed
SL		 1358 break;
1359 case CHIP_ID_1283_PG10:
f5fc0f86 1360 default:
9ccd9217 1361 wl1271_warning("unsupported chip id: 0x%x", wl->chip.id);
f5fc0f86 1362 ret = -ENODEV;
9ccd9217 1363 goto out;
f5fc0f86
LC		 1364 }
1365
c302b2c9 1366 if (wl->fw == NULL) {
f5fc0f86
LC		 1367 ret = wl1271_fetch_firmware(wl);
1368 if (ret < 0)
9ccd9217 1369 goto out;
f5fc0f86
LC		 1370 }
1371
1372 /* No NVS from netlink, try to get it from the filesystem */
1373 if (wl->nvs == NULL) {
1374 ret = wl1271_fetch_nvs(wl);
1375 if (ret < 0)
9ccd9217 1376 goto out;
f5fc0f86
LC		 1377 }
1378
1379out:
1380 return ret;
1381}
1382
f5fc0f86
LC		 1383int wl1271_plt_start(struct wl1271 *wl)
1384{
9ccd9217 1385 int retries = WL1271_BOOT_RETRIES;
6f07b72a 1386 struct wiphy *wiphy = wl->hw->wiphy;
f5fc0f86
LC		 1387 int ret;
1388
1389 mutex_lock(&wl->mutex);
1390
1391 wl1271_notice("power up");
1392
1393 if (wl->state != WL1271_STATE_OFF) {
1394 wl1271_error("cannot go into PLT state because not "
1395 "in off state: %d", wl->state);
1396 ret = -EBUSY;
1397 goto out;
1398 }
1399
9ccd9217
JO		 1400 while (retries) {
1401 retries--;
1402 ret = wl1271_chip_wakeup(wl);
1403 if (ret < 0)
1404 goto power_off;
f5fc0f86 1405
9ccd9217
JO		 1406 ret = wl1271_boot(wl);
1407 if (ret < 0)
1408 goto power_off;
eb5b28d0 1409
9ccd9217
JO		 1410 ret = wl1271_plt_init(wl);
1411 if (ret < 0)
1412 goto irq_disable;
bd5ea18f 1413
9ccd9217
JO		 1414 wl->state = WL1271_STATE_PLT;
1415 wl1271_notice("firmware booted in PLT mode (%s)",
4b7fac77 1416 wl->chip.fw_ver_str);
e7ddf549 1417
6f07b72a
GK		 1418 /* update hw/fw version info in wiphy struct */
1419 wiphy->hw_version = wl->chip.id;
1420 strncpy(wiphy->fw_version, wl->chip.fw_ver_str,
1421 sizeof(wiphy->fw_version));
1422
9ccd9217 1423 goto out;
eb5b28d0 1424
9ccd9217 1425irq_disable:
9ccd9217
JO		 1426 mutex_unlock(&wl->mutex);
1427 /* Unlocking the mutex in the middle of handling is
1428 inherently unsafe. In this case we deem it safe to do,
1429 because we need to let any possibly pending IRQ out of
1430 the system (and while we are WL1271_STATE_OFF the IRQ
1431 work function will not do anything.) Also, any other
1432 possible concurrent operations will fail due to the
1433 current state, hence the wl1271 struct should be safe. */
a620865e
IY		 1434 wl1271_disable_interrupts(wl);
1435 wl1271_flush_deferred_work(wl);
1436 cancel_work_sync(&wl->netstack_work);
9ccd9217
JO		 1437 mutex_lock(&wl->mutex);
1438power_off:
1439 wl1271_power_off(wl);
1440 }
f5fc0f86 1441
9ccd9217
JO		 1442 wl1271_error("firmware boot in PLT mode failed despite %d retries",
1443 WL1271_BOOT_RETRIES);
f5fc0f86
LC		 1444out:
1445 mutex_unlock(&wl->mutex);
1446
1447 return ret;
1448}
1449
4623ec7d 1450static int __wl1271_plt_stop(struct wl1271 *wl)
f5fc0f86
LC		 1451{
1452 int ret = 0;
1453
f5fc0f86
LC		 1454 wl1271_notice("power down");
1455
1456 if (wl->state != WL1271_STATE_PLT) {
1457 wl1271_error("cannot power down because not in PLT "
1458 "state: %d", wl->state);
1459 ret = -EBUSY;
1460 goto out;
1461 }
1462
f5fc0f86
LC		 1463 wl1271_power_off(wl);
1464
1465 wl->state = WL1271_STATE_OFF;
bd5ea18f 1466 wl->rx_counter = 0;
f5fc0f86 1467
f5fc0f86 1468 mutex_unlock(&wl->mutex);
a620865e
IY		 1469 wl1271_disable_interrupts(wl);
1470 wl1271_flush_deferred_work(wl);
1471 cancel_work_sync(&wl->netstack_work);
52b0e7a6 1472 cancel_work_sync(&wl->recovery_work);
4ae3fa87
JO		 1473 mutex_lock(&wl->mutex);
1474out:
1475 return ret;
1476}
1477
1478int wl1271_plt_stop(struct wl1271 *wl)
1479{
1480 int ret;
8c7f4f31 1481
4ae3fa87
JO		 1482 mutex_lock(&wl->mutex);
1483 ret = __wl1271_plt_stop(wl);
1484 mutex_unlock(&wl->mutex);
f5fc0f86
LC		 1485 return ret;
1486}
1487
7bb45683 1488static void wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
f5fc0f86
LC		 1489{
1490 struct wl1271 *wl = hw->priv;
536129c8
EP		 1491 struct ieee80211_tx_info *control = IEEE80211_SKB_CB(skb);
1492 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(control->control.vif);
830fb67b 1493 unsigned long flags;
708bb3cf 1494 int q, mapping;
a8c0ddb5 1495 u8 hlid = 0;
f5fc0f86 1496
708bb3cf
AN		 1497 mapping = skb_get_queue_mapping(skb);
1498 q = wl1271_tx_get_queue(mapping);
b07d4037 1499
536129c8 1500 if (wlvif->bss_type == BSS_TYPE_AP_BSS)
f4df1bd5 1501 hlid = wl12xx_tx_get_hlid_ap(wl, skb);
b07d4037 1502
830fb67b 1503 spin_lock_irqsave(&wl->wl_lock, flags);
b07d4037 1504
830fb67b 1505 /* queue the packet */
536129c8 1506 if (wlvif->bss_type == BSS_TYPE_AP_BSS) {
04216da3
AN		 1507 if (!wl1271_is_active_sta(wl, hlid)) {
1508 wl1271_debug(DEBUG_TX, "DROP skb hlid %d q %d",
1509 hlid, q);
1510 dev_kfree_skb(skb);
1511 goto out;
1512 }
1513
a8c0ddb5
AN		 1514 wl1271_debug(DEBUG_TX, "queue skb hlid %d q %d", hlid, q);
1515 skb_queue_tail(&wl->links[hlid].tx_queue[q], skb);
1516 } else {
1517 skb_queue_tail(&wl->tx_queue[q], skb);
1518 }
f5fc0f86 1519
04b4d69c
AN		 1520 wl->tx_queue_count[q]++;
1521
1522 /*
1523 * The workqueue is slow to process the tx_queue and we need stop
1524 * the queue here, otherwise the queue will get too long.
1525 */
1526 if (wl->tx_queue_count[q] >= WL1271_TX_QUEUE_HIGH_WATERMARK) {
1527 wl1271_debug(DEBUG_TX, "op_tx: stopping queues for q %d", q);
1528 ieee80211_stop_queue(wl->hw, mapping);
1529 set_bit(q, &wl->stopped_queues_map);
1530 }
1531
f5fc0f86
LC		 1532 /*
1533 * The chip specific setup must run before the first TX packet -
1534 * before that, the tx_work will not be initialized!
1535 */
1536
b07d4037
IY		 1537 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
1538 !test_bit(WL1271_FLAG_TX_PENDING, &wl->flags))
a522550a 1539 ieee80211_queue_work(wl->hw, &wl->tx_work);
b07d4037 1540
04216da3 1541out:
b07d4037 1542 spin_unlock_irqrestore(&wl->wl_lock, flags);
f5fc0f86
LC		 1543}
1544
ae47c45f
SL		 1545int wl1271_tx_dummy_packet(struct wl1271 *wl)
1546{
990f5de7 1547 unsigned long flags;
14623787
AN		 1548 int q;
1549
1550 /* no need to queue a new dummy packet if one is already pending */
1551 if (test_bit(WL1271_FLAG_DUMMY_PACKET_PENDING, &wl->flags))
1552 return 0;
1553
1554 q = wl1271_tx_get_queue(skb_get_queue_mapping(wl->dummy_packet));
990f5de7
IY		 1555
1556 spin_lock_irqsave(&wl->wl_lock, flags);
1557 set_bit(WL1271_FLAG_DUMMY_PACKET_PENDING, &wl->flags);
f1a46384 1558 wl->tx_queue_count[q]++;
990f5de7
IY		 1559 spin_unlock_irqrestore(&wl->wl_lock, flags);
1560
1561 /* The FW is low on RX memory blocks, so send the dummy packet asap */
1562 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags))
536129c8 1563 wl1271_tx_work_locked(wl, wl->vif);
990f5de7
IY		 1564
1565 /*
1566 * If the FW TX is busy, TX work will be scheduled by the threaded
1567 * interrupt handler function
1568 */
1569 return 0;
1570}
1571
1572/*
1573 * The size of the dummy packet should be at least 1400 bytes. However, in
1574 * order to minimize the number of bus transactions, aligning it to 512 bytes
1575 * boundaries could be beneficial, performance wise
1576 */
1577#define TOTAL_TX_DUMMY_PACKET_SIZE (ALIGN(1400, 512))
1578
cf27d867 1579static struct sk_buff *wl12xx_alloc_dummy_packet(struct wl1271 *wl)
990f5de7
IY		 1580{
1581 struct sk_buff *skb;
ae47c45f 1582 struct ieee80211_hdr_3addr *hdr;
990f5de7
IY		 1583 unsigned int dummy_packet_size;
1584
1585 dummy_packet_size = TOTAL_TX_DUMMY_PACKET_SIZE -
1586 sizeof(struct wl1271_tx_hw_descr) - sizeof(*hdr);
ae47c45f 1587
990f5de7 1588 skb = dev_alloc_skb(TOTAL_TX_DUMMY_PACKET_SIZE);
ae47c45f 1589 if (!skb) {
990f5de7
IY		 1590 wl1271_warning("Failed to allocate a dummy packet skb");
1591 return NULL;
ae47c45f
SL		 1592 }
1593
1594 skb_reserve(skb, sizeof(struct wl1271_tx_hw_descr));
1595
1596 hdr = (struct ieee80211_hdr_3addr *) skb_put(skb, sizeof(*hdr));
1597 memset(hdr, 0, sizeof(*hdr));
1598 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
990f5de7
IY		 1599 IEEE80211_STYPE_NULLFUNC |
1600 IEEE80211_FCTL_TODS);
ae47c45f 1601
990f5de7 1602 memset(skb_put(skb, dummy_packet_size), 0, dummy_packet_size);
ae47c45f 1603
18b92ffa
LC		 1604 /* Dummy packets require the TID to be management */
1605 skb->priority = WL1271_TID_MGMT;
ae47c45f 1606
990f5de7 1607 /* Initialize all fields that might be used */
86c438f4 1608 skb_set_queue_mapping(skb, 0);
990f5de7 1609 memset(IEEE80211_SKB_CB(skb), 0, sizeof(struct ieee80211_tx_info));
ae47c45f 1610
990f5de7 1611 return skb;
ae47c45f
SL		 1612}
1613
990f5de7 1614
c2c192ac
JO		 1615static struct notifier_block wl1271_dev_notifier = {
1616 .notifier_call = wl1271_dev_notify,
1617};
1618
f634a4e7 1619#ifdef CONFIG_PM
d2d66c56
EP		 1620static int wl1271_configure_suspend_sta(struct wl1271 *wl,
1621 struct wl12xx_vif *wlvif)
9439064c 1622{
e85d1629 1623 int ret = 0;
9439064c 1624
9439064c
EP		 1625 mutex_lock(&wl->mutex);
1626
e85d1629
EP		 1627 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
1628 goto out_unlock;
1629
9439064c
EP		 1630 ret = wl1271_ps_elp_wakeup(wl);
1631 if (ret < 0)
1632 goto out_unlock;
1633
1634 /* enter psm if needed*/
1635 if (!test_bit(WL1271_FLAG_PSM, &wl->flags)) {
1636 DECLARE_COMPLETION_ONSTACK(compl);
1637
1638 wl->ps_compl = &compl;
0603d891 1639 ret = wl1271_ps_set_mode(wl, wlvif, STATION_POWER_SAVE_MODE,
d2d66c56 1640 wlvif->basic_rate, true);
9439064c
EP		 1641 if (ret < 0)
1642 goto out_sleep;
1643
1644 /* we must unlock here so we will be able to get events */
1645 wl1271_ps_elp_sleep(wl);
1646 mutex_unlock(&wl->mutex);
1647
1648 ret = wait_for_completion_timeout(
1649 &compl, msecs_to_jiffies(WL1271_PS_COMPLETE_TIMEOUT));
1650 if (ret <= 0) {
1651 wl1271_warning("couldn't enter ps mode!");
1652 ret = -EBUSY;
1653 goto out;
1654 }
1655
1656 /* take mutex again, and wakeup */
1657 mutex_lock(&wl->mutex);
1658
1659 ret = wl1271_ps_elp_wakeup(wl);
1660 if (ret < 0)
1661 goto out_unlock;
1662 }
1663out_sleep:
1664 wl1271_ps_elp_sleep(wl);
1665out_unlock:
1666 mutex_unlock(&wl->mutex);
1667out:
1668 return ret;
1669
1670}
1671
0603d891
EP		 1672static int wl1271_configure_suspend_ap(struct wl1271 *wl,
1673 struct wl12xx_vif *wlvif)
8a7cf3fe 1674{
e85d1629 1675 int ret = 0;
8a7cf3fe
EP		 1676
1677 mutex_lock(&wl->mutex);
1678
e85d1629
EP		 1679 if (!test_bit(WL1271_FLAG_AP_STARTED, &wl->flags))
1680 goto out_unlock;
1681
8a7cf3fe
EP		 1682 ret = wl1271_ps_elp_wakeup(wl);
1683 if (ret < 0)
1684 goto out_unlock;
1685
0603d891 1686 ret = wl1271_acx_beacon_filter_opt(wl, wlvif, true);
8a7cf3fe
EP		 1687
1688 wl1271_ps_elp_sleep(wl);
1689out_unlock:
1690 mutex_unlock(&wl->mutex);
1691 return ret;
1692
1693}
1694
d2d66c56
EP		 1695static int wl1271_configure_suspend(struct wl1271 *wl,
1696 struct wl12xx_vif *wlvif)
8a7cf3fe 1697{
536129c8 1698 if (wlvif->bss_type == BSS_TYPE_STA_BSS)
d2d66c56 1699 return wl1271_configure_suspend_sta(wl, wlvif);
536129c8 1700 if (wlvif->bss_type == BSS_TYPE_AP_BSS)
0603d891 1701 return wl1271_configure_suspend_ap(wl, wlvif);
8a7cf3fe
EP		 1702 return 0;
1703}
1704
d2d66c56
EP		 1705static void wl1271_configure_resume(struct wl1271 *wl,
1706 struct wl12xx_vif *wlvif)
9439064c
EP		 1707{
1708 int ret;
536129c8
EP		 1709 bool is_sta = wlvif->bss_type == BSS_TYPE_STA_BSS;
1710 bool is_ap = wlvif->bss_type == BSS_TYPE_AP_BSS;
9439064c 1711
8a7cf3fe 1712 if (!is_sta && !is_ap)
9439064c
EP		 1713 return;
1714
1715 mutex_lock(&wl->mutex);
1716 ret = wl1271_ps_elp_wakeup(wl);
1717 if (ret < 0)
1718 goto out;
1719
8a7cf3fe
EP		 1720 if (is_sta) {
1721 /* exit psm if it wasn't configured */
1722 if (!test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags))
0603d891 1723 wl1271_ps_set_mode(wl, wlvif, STATION_ACTIVE_MODE,
d2d66c56 1724 wlvif->basic_rate, true);
8a7cf3fe 1725 } else if (is_ap) {
0603d891 1726 wl1271_acx_beacon_filter_opt(wl, wlvif, false);
8a7cf3fe 1727 }
9439064c
EP		 1728
1729 wl1271_ps_elp_sleep(wl);
1730out:
1731 mutex_unlock(&wl->mutex);
1732}
1733
402e4861
EP		 1734static int wl1271_op_suspend(struct ieee80211_hw *hw,
1735 struct cfg80211_wowlan *wow)
1736{
1737 struct wl1271 *wl = hw->priv;
d2d66c56
EP		 1738 struct ieee80211_vif *vif = wl->vif; /* TODO: get as param */
1739 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4a859df8
EP		 1740 int ret;
1741
402e4861 1742 wl1271_debug(DEBUG_MAC80211, "mac80211 suspend wow=%d", !!wow);
4a859df8 1743 WARN_ON(!wow || !wow->any);
f44e5868 1744
4a859df8 1745 wl->wow_enabled = true;
d2d66c56 1746 ret = wl1271_configure_suspend(wl, wlvif);
4a859df8
EP		 1747 if (ret < 0) {
1748 wl1271_warning("couldn't prepare device to suspend");
1749 return ret;
1750 }
1751 /* flush any remaining work */
1752 wl1271_debug(DEBUG_MAC80211, "flushing remaining works");
f44e5868 1753
4a859df8
EP		 1754 /*
1755 * disable and re-enable interrupts in order to flush
1756 * the threaded_irq
1757 */
1758 wl1271_disable_interrupts(wl);
1759
1760 /*
1761 * set suspended flag to avoid triggering a new threaded_irq
1762 * work. no need for spinlock as interrupts are disabled.
1763 */
1764 set_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
1765
1766 wl1271_enable_interrupts(wl);
1767 flush_work(&wl->tx_work);
1768 flush_delayed_work(&wl->pspoll_work);
1769 flush_delayed_work(&wl->elp_work);
f44e5868 1770
402e4861
EP		 1771 return 0;
1772}
1773
1774static int wl1271_op_resume(struct ieee80211_hw *hw)
1775{
1776 struct wl1271 *wl = hw->priv;
d2d66c56
EP		 1777 struct ieee80211_vif *vif = wl->vif; /* TODO: get as param */
1778 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4a859df8
EP		 1779 unsigned long flags;
1780 bool run_irq_work = false;
1781
402e4861
EP		 1782 wl1271_debug(DEBUG_MAC80211, "mac80211 resume wow=%d",
1783 wl->wow_enabled);
4a859df8 1784 WARN_ON(!wl->wow_enabled);
f44e5868
EP		 1785
1786 /*
1787 * re-enable irq_work enqueuing, and call irq_work directly if
1788 * there is a pending work.
1789 */
4a859df8
EP		 1790 spin_lock_irqsave(&wl->wl_lock, flags);
1791 clear_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
1792 if (test_and_clear_bit(WL1271_FLAG_PENDING_WORK, &wl->flags))
1793 run_irq_work = true;
1794 spin_unlock_irqrestore(&wl->wl_lock, flags);
9439064c 1795
4a859df8
EP		 1796 if (run_irq_work) {
1797 wl1271_debug(DEBUG_MAC80211,
1798 "run postponed irq_work directly");
1799 wl1271_irq(0, wl);
1800 wl1271_enable_interrupts(wl);
f44e5868 1801 }
d2d66c56 1802 wl1271_configure_resume(wl, wlvif);
ff91afc9 1803 wl->wow_enabled = false;
f44e5868 1804
402e4861
EP		 1805 return 0;
1806}
f634a4e7 1807#endif
402e4861 1808
f5fc0f86 1809static int wl1271_op_start(struct ieee80211_hw *hw)
1b72aecd
JO		 1810{
1811 wl1271_debug(DEBUG_MAC80211, "mac80211 start");
1812
1813 /*
1814 * We have to delay the booting of the hardware because
1815 * we need to know the local MAC address before downloading and
1816 * initializing the firmware. The MAC address cannot be changed
1817 * after boot, and without the proper MAC address, the firmware
1818 * will not function properly.
1819 *
1820 * The MAC address is first known when the corresponding interface
1821 * is added. That is where we will initialize the hardware.
1822 */
1823
1824 return 0;
1825}
1826
1827static void wl1271_op_stop(struct ieee80211_hw *hw)
1828{
1829 wl1271_debug(DEBUG_MAC80211, "mac80211 stop");
1830}
1831
536129c8 1832static u8 wl12xx_get_role_type(struct wl1271 *wl, struct wl12xx_vif *wlvif)
b78b47eb 1833{
536129c8 1834 switch (wlvif->bss_type) {
b78b47eb 1835 case BSS_TYPE_AP_BSS:
fb0e707c 1836 if (wlvif->p2p)
045c745f
EP		 1837 return WL1271_ROLE_P2P_GO;
1838 else
1839 return WL1271_ROLE_AP;
b78b47eb
EP		 1840
1841 case BSS_TYPE_STA_BSS:
fb0e707c 1842 if (wlvif->p2p)
045c745f
EP		 1843 return WL1271_ROLE_P2P_CL;
1844 else
1845 return WL1271_ROLE_STA;
b78b47eb 1846
227e81e1
EP		 1847 case BSS_TYPE_IBSS:
1848 return WL1271_ROLE_IBSS;
1849
b78b47eb 1850 default:
536129c8 1851 wl1271_error("invalid bss_type: %d", wlvif->bss_type);
b78b47eb
EP		 1852 }
1853 return WL12XX_INVALID_ROLE_TYPE;
1854}
1855
87fbcb0f
EP		 1856static void wl12xx_init_vif_data(struct wl12xx_vif *wlvif)
1857{
536129c8 1858 wlvif->bss_type = MAX_BSS_TYPE;
0603d891 1859 wlvif->role_id = WL12XX_INVALID_ROLE_ID;
7edebf56 1860 wlvif->dev_role_id = WL12XX_INVALID_ROLE_ID;
87fbcb0f 1861 wlvif->basic_rate_set = CONF_TX_RATE_MASK_BASIC;
d2d66c56 1862 wlvif->basic_rate = CONF_TX_RATE_MASK_BASIC;
30d0c8fd 1863 wlvif->rate_set = CONF_TX_RATE_MASK_BASIC;
87fbcb0f
EP		 1864}
1865
1b72aecd
JO		 1866static int wl1271_op_add_interface(struct ieee80211_hw *hw,
1867 struct ieee80211_vif *vif)
f5fc0f86
LC		 1868{
1869 struct wl1271 *wl = hw->priv;
ac01e948 1870 struct wiphy *wiphy = hw->wiphy;
536129c8 1871 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
9ccd9217 1872 int retries = WL1271_BOOT_RETRIES;
f5fc0f86 1873 int ret = 0;
b78b47eb 1874 u8 role_type;
71125abd 1875 bool booted = false;
f5fc0f86 1876
1b72aecd 1877 wl1271_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM",
045c745f 1878 ieee80211_vif_type_p2p(vif), vif->addr);
f5fc0f86
LC		 1879
1880 mutex_lock(&wl->mutex);
1b72aecd 1881 if (wl->vif) {
71125abd
EP		 1882 wl1271_debug(DEBUG_MAC80211,
1883 "multiple vifs are not supported yet");
1b72aecd
JO		 1884 ret = -EBUSY;
1885 goto out;
1886 }
536129c8 1887 wl12xx_init_vif_data(wlvif);
1b72aecd 1888
13026dec
JO		 1889 /*
1890 * in some very corner case HW recovery scenarios its possible to
1891 * get here before __wl1271_op_remove_interface is complete, so
1892 * opt out if that is the case.
1893 */
1894 if (test_bit(WL1271_FLAG_IF_INITIALIZED, &wl->flags)) {
1895 ret = -EBUSY;
1896 goto out;
1897 }
1898
045c745f
EP		 1899 switch (ieee80211_vif_type_p2p(vif)) {
1900 case NL80211_IFTYPE_P2P_CLIENT:
fb0e707c 1901 wlvif->p2p = 1;
045c745f 1902 /* fall-through */
1b72aecd 1903 case NL80211_IFTYPE_STATION:
536129c8 1904 wlvif->bss_type = BSS_TYPE_STA_BSS;
1b72aecd
JO		 1905 break;
1906 case NL80211_IFTYPE_ADHOC:
536129c8 1907 wlvif->bss_type = BSS_TYPE_IBSS;
1b72aecd 1908 break;
045c745f 1909 case NL80211_IFTYPE_P2P_GO:
fb0e707c 1910 wlvif->p2p = 1;
045c745f 1911 /* fall-through */
038d925b 1912 case NL80211_IFTYPE_AP:
536129c8 1913 wlvif->bss_type = BSS_TYPE_AP_BSS;
038d925b 1914 break;
1b72aecd
JO		 1915 default:
1916 ret = -EOPNOTSUPP;
1917 goto out;
1918 }
1919
536129c8 1920 role_type = wl12xx_get_role_type(wl, wlvif);
b78b47eb
EP		 1921 if (role_type == WL12XX_INVALID_ROLE_TYPE) {
1922 ret = -EINVAL;
1923 goto out;
1924 }
784f694d
EP		 1925 /*
1926 * we still need this in order to configure the fw
1927 * while uploading the nvs
1928 */
1b72aecd 1929 memcpy(wl->mac_addr, vif->addr, ETH_ALEN);
f5fc0f86
LC		 1930
1931 if (wl->state != WL1271_STATE_OFF) {
1932 wl1271_error("cannot start because not in off state: %d",
1933 wl->state);
1934 ret = -EBUSY;
1935 goto out;
1936 }
1937
9ccd9217
JO		 1938 while (retries) {
1939 retries--;
1940 ret = wl1271_chip_wakeup(wl);
1941 if (ret < 0)
1942 goto power_off;
f5fc0f86 1943
9ccd9217
JO		 1944 ret = wl1271_boot(wl);
1945 if (ret < 0)
1946 goto power_off;
f5fc0f86 1947
92c77c73
EP		 1948 ret = wl1271_hw_init(wl);
1949 if (ret < 0)
1950 goto irq_disable;
1951
536129c8
EP		 1952 if (wlvif->bss_type == BSS_TYPE_STA_BSS ||
1953 wlvif->bss_type == BSS_TYPE_IBSS) {
04e8079c
EP		 1954 /*
1955 * The device role is a special role used for
1956 * rx and tx frames prior to association (as
1957 * the STA role can get packets only from
1958 * its associated bssid)
1959 */
784f694d 1960 ret = wl12xx_cmd_role_enable(wl, vif->addr,
04e8079c 1961 WL1271_ROLE_DEVICE,
7edebf56 1962 &wlvif->dev_role_id);
04e8079c
EP		 1963 if (ret < 0)
1964 goto irq_disable;
1965 }
1966
784f694d 1967 ret = wl12xx_cmd_role_enable(wl, vif->addr,
0603d891 1968 role_type, &wlvif->role_id);
b78b47eb
EP		 1969 if (ret < 0)
1970 goto irq_disable;
1971
92c77c73 1972 ret = wl1271_init_vif_specific(wl, vif);
9ccd9217
JO		 1973 if (ret < 0)
1974 goto irq_disable;
f5fc0f86 1975
71125abd
EP		 1976 booted = true;
1977 break;
eb5b28d0 1978
9ccd9217 1979irq_disable:
9ccd9217
JO		 1980 mutex_unlock(&wl->mutex);
1981 /* Unlocking the mutex in the middle of handling is
1982 inherently unsafe. In this case we deem it safe to do,
1983 because we need to let any possibly pending IRQ out of
1984 the system (and while we are WL1271_STATE_OFF the IRQ
1985 work function will not do anything.) Also, any other
1986 possible concurrent operations will fail due to the
1987 current state, hence the wl1271 struct should be safe. */
a620865e
IY		 1988 wl1271_disable_interrupts(wl);
1989 wl1271_flush_deferred_work(wl);
1990 cancel_work_sync(&wl->netstack_work);
9ccd9217
JO		 1991 mutex_lock(&wl->mutex);
1992power_off:
1993 wl1271_power_off(wl);
1994 }
eb5b28d0 1995
71125abd
EP		 1996 if (!booted) {
1997 wl1271_error("firmware boot failed despite %d retries",
1998 WL1271_BOOT_RETRIES);
1999 goto out;
2000 }
2001
2002 wl->vif = vif;
2003 wl->state = WL1271_STATE_ON;
13026dec 2004 set_bit(WL1271_FLAG_IF_INITIALIZED, &wl->flags);
4b7fac77 2005 wl1271_info("firmware booted (%s)", wl->chip.fw_ver_str);
71125abd
EP		 2006
2007 /* update hw/fw version info in wiphy struct */
2008 wiphy->hw_version = wl->chip.id;
4b7fac77 2009 strncpy(wiphy->fw_version, wl->chip.fw_ver_str,
71125abd
EP		 2010 sizeof(wiphy->fw_version));
2011
fb6a6819
LC		 2012 /*
2013 * Now we know if 11a is supported (info from the NVS), so disable
2014 * 11a channels if not supported
2015 */
2016 if (!wl->enable_11a)
2017 wiphy->bands[IEEE80211_BAND_5GHZ]->n_channels = 0;
2018
2019 wl1271_debug(DEBUG_MAC80211, "11a is %ssupported",
2020 wl->enable_11a ? "" : "not ");
2021
eb5b28d0 2022out:
f5fc0f86
LC		 2023 mutex_unlock(&wl->mutex);
2024
f9f774c1 2025 mutex_lock(&wl_list_mutex);
eb887dfd 2026 if (!ret)
01c09162 2027 list_add(&wl->list, &wl_list);
f9f774c1 2028 mutex_unlock(&wl_list_mutex);
01c09162 2029
f5fc0f86
LC		 2030 return ret;
2031}
2032
7dece1c8 2033static void __wl1271_op_remove_interface(struct wl1271 *wl,
536129c8 2034 struct ieee80211_vif *vif,
7dece1c8 2035 bool reset_tx_queues)
f5fc0f86 2036{
536129c8 2037 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
bf54e301 2038 int ret, i;
f5fc0f86 2039
1b72aecd 2040 wl1271_debug(DEBUG_MAC80211, "mac80211 remove interface");
f5fc0f86 2041
13026dec
JO		 2042 /* because of hardware recovery, we may get here twice */
2043 if (wl->state != WL1271_STATE_ON)
2044 return;
2045
1b72aecd 2046 wl1271_info("down");
f5fc0f86 2047
f9f774c1 2048 mutex_lock(&wl_list_mutex);
01c09162 2049 list_del(&wl->list);
f9f774c1 2050 mutex_unlock(&wl_list_mutex);
01c09162 2051
8d2ef7bd 2052 /* enable dyn ps just in case (if left on due to fw crash etc) */
536129c8 2053 if (wlvif->bss_type == BSS_TYPE_STA_BSS)
f532be6d 2054 ieee80211_enable_dyn_ps(wl->vif);
8d2ef7bd 2055
08688d6b 2056 if (wl->scan.state != WL1271_SCAN_STATE_IDLE) {
08688d6b 2057 wl->scan.state = WL1271_SCAN_STATE_IDLE;
4a31c11c 2058 memset(wl->scan.scanned_ch, 0, sizeof(wl->scan.scanned_ch));
784f694d 2059 wl->scan_vif = NULL;
b739a42c 2060 wl->scan.req = NULL;
76a029fb 2061 ieee80211_scan_completed(wl->hw, true);
f5fc0f86
LC		 2062 }
2063
b78b47eb
EP		 2064 if (!test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags)) {
2065 /* disable active roles */
2066 ret = wl1271_ps_elp_wakeup(wl);
2067 if (ret < 0)
2068 goto deinit;
2069
536129c8 2070 if (wlvif->bss_type == BSS_TYPE_STA_BSS) {
7edebf56 2071 ret = wl12xx_cmd_role_disable(wl, &wlvif->dev_role_id);
04e8079c
EP		 2072 if (ret < 0)
2073 goto deinit;
2074 }
2075
0603d891 2076 ret = wl12xx_cmd_role_disable(wl, &wlvif->role_id);
b78b47eb
EP		 2077 if (ret < 0)
2078 goto deinit;
2079
2080 wl1271_ps_elp_sleep(wl);
2081 }
2082deinit:
e51ae9be 2083 /* clear all hlids (except system_hlid) */
b78b47eb 2084 wl->sta_hlid = WL12XX_INVALID_LINK_ID;
04e8079c 2085 wl->dev_hlid = WL12XX_INVALID_LINK_ID;
e51ae9be
AN		 2086 wl->ap_bcast_hlid = WL12XX_INVALID_LINK_ID;
2087 wl->ap_global_hlid = WL12XX_INVALID_LINK_ID;
b78b47eb 2088
13026dec
JO		 2089 /*
2090 * this must be before the cancel_work calls below, so that the work
2091 * functions don't perform further work.
2092 */
f5fc0f86
LC		 2093 wl->state = WL1271_STATE_OFF;
2094
f5fc0f86
LC		 2095 mutex_unlock(&wl->mutex);
2096
a620865e
IY		 2097 wl1271_disable_interrupts(wl);
2098 wl1271_flush_deferred_work(wl);
78abd320 2099 cancel_delayed_work_sync(&wl->scan_complete_work);
a620865e 2100 cancel_work_sync(&wl->netstack_work);
f5fc0f86 2101 cancel_work_sync(&wl->tx_work);
77ddaa10
EP		 2102 del_timer_sync(&wl->rx_streaming_timer);
2103 cancel_work_sync(&wl->rx_streaming_enable_work);
2104 cancel_work_sync(&wl->rx_streaming_disable_work);
90494a90 2105 cancel_delayed_work_sync(&wl->pspoll_work);
8c7f4f31 2106 cancel_delayed_work_sync(&wl->elp_work);
f5fc0f86
LC		 2107
2108 mutex_lock(&wl->mutex);
2109
2110 /* let's notify MAC80211 about the remaining pending TX frames */
7dece1c8 2111 wl1271_tx_reset(wl, reset_tx_queues);
f5fc0f86
LC		 2112 wl1271_power_off(wl);
2113
8a5a37a6 2114 wl->band = IEEE80211_BAND_2GHZ;
f5fc0f86
LC		 2115
2116 wl->rx_counter = 0;
19ad0715 2117 wl->psm_entry_retry = 0;
f5fc0f86
LC		 2118 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
2119 wl->tx_blocks_available = 0;
7bb5d6ce 2120 wl->tx_allocated_blocks = 0;
f5fc0f86
LC		 2121 wl->tx_results_count = 0;
2122 wl->tx_packets_count = 0;
2123 wl->time_offset = 0;
2124 wl->session_counter = 0;
af7fbb28
EP		 2125 wl->bitrate_masks[IEEE80211_BAND_2GHZ] = wl->conf.tx.basic_rate;
2126 wl->bitrate_masks[IEEE80211_BAND_5GHZ] = wl->conf.tx.basic_rate_5;
1b72aecd 2127 wl->vif = NULL;
e9eb8cbe 2128 wl->tx_spare_blocks = TX_HW_BLOCK_SPARE_DEFAULT;
7f179b46 2129 wl1271_free_ap_keys(wl);
f84f7d78 2130 memset(wl->ap_hlid_map, 0, sizeof(wl->ap_hlid_map));
b622d992
AN		 2131 wl->ap_fw_ps_map = 0;
2132 wl->ap_ps_map = 0;
33c2c06c 2133 wl->sched_scanning = false;
0603d891 2134 wlvif->role_id = WL12XX_INVALID_ROLE_ID;
7edebf56 2135 wlvif->dev_role_id = WL12XX_INVALID_ROLE_ID;
c690ec81
EP		 2136 memset(wl->roles_map, 0, sizeof(wl->roles_map));
2137 memset(wl->links_map, 0, sizeof(wl->links_map));
251c177f 2138 memset(wl->roc_map, 0, sizeof(wl->roc_map));
da03209e 2139 wl->active_sta_count = 0;
d6e19d13 2140
f4df1bd5
EP		 2141 /* The system link is always allocated */
2142 __set_bit(WL12XX_SYSTEM_HLID, wl->links_map);
2143
13026dec
JO		 2144 /*
2145 * this is performed after the cancel_work calls and the associated
2146 * mutex_lock, so that wl1271_op_add_interface does not accidentally
2147 * get executed before all these vars have been reset.
2148 */
2149 wl->flags = 0;
2150
4d56ad9c 2151 wl->tx_blocks_freed = 0;
f5fc0f86 2152
742246f8 2153 for (i = 0; i < NUM_TX_QUEUES; i++) {
bf54e301 2154 wl->tx_pkts_freed[i] = 0;
742246f8
AN		 2155 wl->tx_allocated_pkts[i] = 0;
2156 }
bf54e301 2157
f5fc0f86 2158 wl1271_debugfs_reset(wl);
bd9dc49c
JO		 2159
2160 kfree(wl->fw_status);
2161 wl->fw_status = NULL;
2162 kfree(wl->tx_res_if);
2163 wl->tx_res_if = NULL;
2164 kfree(wl->target_mem_map);
2165 wl->target_mem_map = NULL;
52a2a375 2166}
bd9dc49c 2167
52a2a375
JO		 2168static void wl1271_op_remove_interface(struct ieee80211_hw *hw,
2169 struct ieee80211_vif *vif)
2170{
2171 struct wl1271 *wl = hw->priv;
2172
2173 mutex_lock(&wl->mutex);
67353299
JO		 2174 /*
2175 * wl->vif can be null here if someone shuts down the interface
2176 * just when hardware recovery has been started.
2177 */
2178 if (wl->vif) {
2179 WARN_ON(wl->vif != vif);
536129c8 2180 __wl1271_op_remove_interface(wl, vif, true);
67353299 2181 }
52b0e7a6 2182
67353299 2183 mutex_unlock(&wl->mutex);
52b0e7a6 2184 cancel_work_sync(&wl->recovery_work);
f5fc0f86
LC		 2185}
2186
87fbcb0f
EP		 2187static int wl1271_join(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2188 bool set_assoc)
82429d32
JO		 2189{
2190 int ret;
536129c8 2191 bool is_ibss = (wlvif->bss_type == BSS_TYPE_IBSS);
82429d32 2192
69e5434c
JO		 2193 /*
2194 * One of the side effects of the JOIN command is that is clears
2195 * WPA/WPA2 keys from the chipset. Performing a JOIN while associated
2196 * to a WPA/WPA2 access point will therefore kill the data-path.
8bf69aae
OBC		 2197 * Currently the only valid scenario for JOIN during association
2198 * is on roaming, in which case we will also be given new keys.
2199 * Keep the below message for now, unless it starts bothering
2200 * users who really like to roam a lot :)
69e5434c
JO		 2201 */
2202 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
2203 wl1271_info("JOIN while associated.");
2204
2205 if (set_assoc)
2206 set_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags);
2207
227e81e1 2208 if (is_ibss)
87fbcb0f 2209 ret = wl12xx_cmd_role_start_ibss(wl, wlvif);
227e81e1 2210 else
87fbcb0f 2211 ret = wl12xx_cmd_role_start_sta(wl, wlvif);
82429d32
JO		 2212 if (ret < 0)
2213 goto out;
2214
82429d32
JO		 2215 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
2216 goto out;
2217
2218 /*
2219 * The join command disable the keep-alive mode, shut down its process,
2220 * and also clear the template config, so we need to reset it all after
2221 * the join. The acx_aid starts the keep-alive process, and the order
2222 * of the commands below is relevant.
2223 */
0603d891 2224 ret = wl1271_acx_keep_alive_mode(wl, wlvif, true);
82429d32
JO		 2225 if (ret < 0)
2226 goto out;
2227
0603d891 2228 ret = wl1271_acx_aid(wl, wlvif, wlvif->aid);
82429d32
JO		 2229 if (ret < 0)
2230 goto out;
2231
d2d66c56 2232 ret = wl12xx_cmd_build_klv_null_data(wl, wlvif);
82429d32
JO		 2233 if (ret < 0)
2234 goto out;
2235
0603d891
EP		 2236 ret = wl1271_acx_keep_alive_config(wl, wlvif,
2237 CMD_TEMPL_KLV_IDX_NULL_DATA,
82429d32
JO		 2238 ACX_KEEP_ALIVE_TPL_VALID);
2239 if (ret < 0)
2240 goto out;
2241
2242out:
2243 return ret;
2244}
2245
0603d891 2246static int wl1271_unjoin(struct wl1271 *wl, struct wl12xx_vif *wlvif)
c7f43e45
LC		 2247{
2248 int ret;
2249
6d158ff3
SL		 2250 if (test_and_clear_bit(WL1271_FLAG_CS_PROGRESS, &wl->flags)) {
2251 wl12xx_cmd_stop_channel_switch(wl);
2252 ieee80211_chswitch_done(wl->vif, false);
2253 }
2254
c7f43e45 2255 /* to stop listening to a channel, we disconnect */
0603d891 2256 ret = wl12xx_cmd_role_stop_sta(wl, wlvif);
c7f43e45
LC		 2257 if (ret < 0)
2258 goto out;
2259
b992c682
OK		 2260 /* reset TX security counters on a clean disconnect */
2261 wl->tx_security_last_seq_lsb = 0;
2262 wl->tx_security_seq = 0;
2263
c7f43e45
LC		 2264out:
2265 return ret;
2266}
2267
87fbcb0f 2268static void wl1271_set_band_rate(struct wl1271 *wl, struct wl12xx_vif *wlvif)
ebba60c6 2269{
87fbcb0f 2270 wlvif->basic_rate_set = wl->bitrate_masks[wl->band];
30d0c8fd 2271 wlvif->rate_set = wlvif->basic_rate_set;
ebba60c6
JO		 2272}
2273
251c177f
EP		 2274static bool wl12xx_is_roc(struct wl1271 *wl)
2275{
2276 u8 role_id;
2277
2278 role_id = find_first_bit(wl->roc_map, WL12XX_MAX_ROLES);
2279 if (role_id >= WL12XX_MAX_ROLES)
2280 return false;
2281
2282 return true;
2283}
2284
87fbcb0f
EP		 2285static int wl1271_sta_handle_idle(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2286 bool idle)
0d58cbff
JO		 2287{
2288 int ret;
2289
2290 if (idle) {
251c177f
EP		 2291 /* no need to croc if we weren't busy (e.g. during boot) */
2292 if (wl12xx_is_roc(wl)) {
7edebf56 2293 ret = wl12xx_croc(wl, wlvif->dev_role_id);
251c177f
EP		 2294 if (ret < 0)
2295 goto out;
2296
7edebf56 2297 ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
0d58cbff
JO		 2298 if (ret < 0)
2299 goto out;
2300 }
30d0c8fd
EP		 2301 wlvif->rate_set =
2302 wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
2303 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
0d58cbff
JO		 2304 if (ret < 0)
2305 goto out;
2306 ret = wl1271_acx_keep_alive_config(
0603d891 2307 wl, wlvif, CMD_TEMPL_KLV_IDX_NULL_DATA,
0d58cbff
JO		 2308 ACX_KEEP_ALIVE_TPL_INVALID);
2309 if (ret < 0)
2310 goto out;
2311 set_bit(WL1271_FLAG_IDLE, &wl->flags);
2312 } else {
33c2c06c
LC		 2313 /* The current firmware only supports sched_scan in idle */
2314 if (wl->sched_scanning) {
2315 wl1271_scan_sched_scan_stop(wl);
2316 ieee80211_sched_scan_stopped(wl->hw);
2317 }
2318
7edebf56 2319 ret = wl12xx_cmd_role_start_dev(wl, wlvif);
251c177f
EP		 2320 if (ret < 0)
2321 goto out;
2322
7edebf56 2323 ret = wl12xx_roc(wl, wlvif->dev_role_id);
0d58cbff
JO		 2324 if (ret < 0)
2325 goto out;
2326 clear_bit(WL1271_FLAG_IDLE, &wl->flags);
2327 }
2328
2329out:
2330 return ret;
2331}
2332
f5fc0f86
LC		 2333static int wl1271_op_config(struct ieee80211_hw *hw, u32 changed)
2334{
2335 struct wl1271 *wl = hw->priv;
87fbcb0f
EP		 2336 struct ieee80211_vif *vif = wl->vif; /* TODO: reconfig all vifs */
2337 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
f5fc0f86
LC		 2338 struct ieee80211_conf *conf = &hw->conf;
2339 int channel, ret = 0;
bee0ffec 2340 bool is_ap;
f5fc0f86
LC		 2341
2342 channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
2343
bee0ffec
AN		 2344 wl1271_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d %s"
2345 " changed 0x%x",
f5fc0f86
LC		 2346 channel,
2347 conf->flags & IEEE80211_CONF_PS ? "on" : "off",
c7f43e45 2348 conf->power_level,
bee0ffec
AN		 2349 conf->flags & IEEE80211_CONF_IDLE ? "idle" : "in use",
2350 changed);
f5fc0f86 2351
781608c4
JO		 2352 /*
2353 * mac80211 will go to idle nearly immediately after transmitting some
2354 * frames, such as the deauth. To make sure those frames reach the air,
2355 * wait here until the TX queue is fully flushed.
2356 */
2357 if ((changed & IEEE80211_CONF_CHANGE_IDLE) &&
2358 (conf->flags & IEEE80211_CONF_IDLE))
2359 wl1271_tx_flush(wl);
2360
f5fc0f86
LC		 2361 mutex_lock(&wl->mutex);
2362
f8d9802f 2363 if (unlikely(wl->state == WL1271_STATE_OFF)) {
17e672d6
AN		 2364 /* we support configuring the channel and band while off */
2365 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL)) {
2366 wl->band = conf->channel->band;
2367 wl->channel = channel;
2368 }
2369
097f8821
AN		 2370 if ((changed & IEEE80211_CONF_CHANGE_POWER))
2371 wl->power_level = conf->power_level;
2372
2c10bb9c 2373 goto out;
f8d9802f 2374 }
8a5a37a6 2375
536129c8 2376 is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
bee0ffec 2377
a620865e 2378 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 2379 if (ret < 0)
2380 goto out;
2381
ebba60c6 2382 /* if the channel changes while joined, join again */
69e5434c
JO		 2383 if (changed & IEEE80211_CONF_CHANGE_CHANNEL &&
2384 ((wl->band != conf->channel->band) ||
2385 (wl->channel != channel))) {
c6930b07 2386 /* send all pending packets */
536129c8 2387 wl1271_tx_work_locked(wl, vif);
ebba60c6
JO		 2388 wl->band = conf->channel->band;
2389 wl->channel = channel;
2390
bee0ffec
AN		 2391 if (!is_ap) {
2392 /*
2393 * FIXME: the mac80211 should really provide a fixed
2394 * rate to use here. for now, just use the smallest
2395 * possible rate for the band as a fixed rate for
2396 * association frames and other control messages.
2397 */
2398 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
87fbcb0f 2399 wl1271_set_band_rate(wl, wlvif);
bee0ffec 2400
d2d66c56 2401 wlvif->basic_rate =
87fbcb0f
EP		 2402 wl1271_tx_min_rate_get(wl,
2403 wlvif->basic_rate_set);
30d0c8fd 2404 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
ebba60c6 2405 if (ret < 0)
bee0ffec 2406 wl1271_warning("rate policy for channel "
ebba60c6 2407 "failed %d", ret);
bee0ffec 2408
251c177f
EP		 2409 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags)) {
2410 if (wl12xx_is_roc(wl)) {
2411 /* roaming */
7edebf56
EP		 2412 ret = wl12xx_croc(wl,
2413 wlvif->dev_role_id);
251c177f
EP		 2414 if (ret < 0)
2415 goto out_sleep;
2416 }
87fbcb0f 2417 ret = wl1271_join(wl, wlvif, false);
bee0ffec
AN		 2418 if (ret < 0)
2419 wl1271_warning("cmd join on channel "
2420 "failed %d", ret);
251c177f
EP		 2421 } else {
2422 /*
2423 * change the ROC channel. do it only if we are
2424 * not idle. otherwise, CROC will be called
2425 * anyway.
2426 */
2427 if (wl12xx_is_roc(wl) &&
2428 !(conf->flags & IEEE80211_CONF_IDLE)) {
7edebf56
EP		 2429 ret = wl12xx_croc(wl,
2430 wlvif->dev_role_id);
251c177f
EP		 2431 if (ret < 0)
2432 goto out_sleep;
2433
7edebf56
EP		 2434 ret = wl12xx_roc(wl,
2435 wlvif->dev_role_id);
251c177f
EP		 2436 if (ret < 0)
2437 wl1271_warning("roc failed %d",
2438 ret);
2439 }
bee0ffec 2440 }
ebba60c6
JO		 2441 }
2442 }
2443
bee0ffec 2444 if (changed & IEEE80211_CONF_CHANGE_IDLE && !is_ap) {
87fbcb0f 2445 ret = wl1271_sta_handle_idle(wl, wlvif,
bee0ffec 2446 conf->flags & IEEE80211_CONF_IDLE);
0d58cbff
JO		 2447 if (ret < 0)
2448 wl1271_warning("idle mode change failed %d", ret);
f5fc0f86
LC		 2449 }
2450
90494a90
JO		 2451 /*
2452 * if mac80211 changes the PSM mode, make sure the mode is not
2453 * incorrectly changed after the pspoll failure active window.
2454 */
2455 if (changed & IEEE80211_CONF_CHANGE_PS)
2456 clear_bit(WL1271_FLAG_PSPOLL_FAILURE, &wl->flags);
2457
71449f8d
JO		 2458 if (conf->flags & IEEE80211_CONF_PS &&
2459 !test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) {
2460 set_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags);
f5fc0f86
LC		 2461
2462 /*
2463 * We enter PSM only if we're already associated.
2464 * If we're not, we'll enter it when joining an SSID,
2465 * through the bss_info_changed() hook.
2466 */
830fb67b 2467 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags)) {
18f8d468 2468 wl1271_debug(DEBUG_PSM, "psm enabled");
0603d891
EP		 2469 ret = wl1271_ps_set_mode(wl, wlvif,
2470 STATION_POWER_SAVE_MODE,
d2d66c56 2471 wlvif->basic_rate, true);
af5e084b 2472 }
f5fc0f86 2473 } else if (!(conf->flags & IEEE80211_CONF_PS) &&
71449f8d 2474 test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) {
18f8d468 2475 wl1271_debug(DEBUG_PSM, "psm disabled");
f5fc0f86 2476
71449f8d 2477 clear_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags);
f5fc0f86 2478
71449f8d 2479 if (test_bit(WL1271_FLAG_PSM, &wl->flags))
0603d891
EP		 2480 ret = wl1271_ps_set_mode(wl, wlvif,
2481 STATION_ACTIVE_MODE,
d2d66c56 2482 wlvif->basic_rate, true);
f5fc0f86
LC		 2483 }
2484
2485 if (conf->power_level != wl->power_level) {
0603d891 2486 ret = wl1271_acx_tx_power(wl, wlvif, conf->power_level);
f5fc0f86 2487 if (ret < 0)
c6317a54 2488 goto out_sleep;
f5fc0f86
LC		 2489
2490 wl->power_level = conf->power_level;
2491 }
2492
2493out_sleep:
2494 wl1271_ps_elp_sleep(wl);
2495
2496out:
2497 mutex_unlock(&wl->mutex);
2498
2499 return ret;
2500}
2501
b54853f1
JO		 2502struct wl1271_filter_params {
2503 bool enabled;
2504 int mc_list_length;
2505 u8 mc_list[ACX_MC_ADDRESS_GROUP_MAX][ETH_ALEN];
2506};
2507
22bedad3
JP		 2508static u64 wl1271_op_prepare_multicast(struct ieee80211_hw *hw,
2509 struct netdev_hw_addr_list *mc_list)
c87dec9f 2510{
c87dec9f 2511 struct wl1271_filter_params *fp;
22bedad3 2512 struct netdev_hw_addr *ha;
2c10bb9c 2513 struct wl1271 *wl = hw->priv;
c87dec9f 2514
2c10bb9c
SD		 2515 if (unlikely(wl->state == WL1271_STATE_OFF))
2516 return 0;
c87dec9f 2517
74441130 2518 fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
c87dec9f
JO		 2519 if (!fp) {
2520 wl1271_error("Out of memory setting filters.");
2521 return 0;
2522 }
2523
2524 /* update multicast filtering parameters */
c87dec9f 2525 fp->mc_list_length = 0;
22bedad3
JP		 2526 if (netdev_hw_addr_list_count(mc_list) > ACX_MC_ADDRESS_GROUP_MAX) {
2527 fp->enabled = false;
2528 } else {
2529 fp->enabled = true;
2530 netdev_hw_addr_list_for_each(ha, mc_list) {
c87dec9f 2531 memcpy(fp->mc_list[fp->mc_list_length],
22bedad3 2532 ha->addr, ETH_ALEN);
c87dec9f 2533 fp->mc_list_length++;
22bedad3 2534 }
c87dec9f
JO		 2535 }
2536
b54853f1 2537 return (u64)(unsigned long)fp;
c87dec9f 2538}
f5fc0f86 2539
b54853f1
JO		 2540#define WL1271_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
2541 FIF_ALLMULTI | \
2542 FIF_FCSFAIL | \
2543 FIF_BCN_PRBRESP_PROMISC | \
2544 FIF_CONTROL | \
2545 FIF_OTHER_BSS)
2546
f5fc0f86
LC		 2547static void wl1271_op_configure_filter(struct ieee80211_hw *hw,
2548 unsigned int changed,
c87dec9f 2549 unsigned int *total, u64 multicast)
f5fc0f86 2550{
b54853f1 2551 struct wl1271_filter_params *fp = (void *)(unsigned long)multicast;
f5fc0f86 2552 struct wl1271 *wl = hw->priv;
536129c8
EP		 2553 struct ieee80211_vif *vif = wl->vif; /* TODO: get as param */
2554 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
2555
b54853f1 2556 int ret;
f5fc0f86 2557
7d057869
AN		 2558 wl1271_debug(DEBUG_MAC80211, "mac80211 configure filter changed %x"
2559 " total %x", changed, *total);
f5fc0f86 2560
b54853f1
JO		 2561 mutex_lock(&wl->mutex);
2562
2c10bb9c
SD		 2563 *total &= WL1271_SUPPORTED_FILTERS;
2564 changed &= WL1271_SUPPORTED_FILTERS;
2565
2566 if (unlikely(wl->state == WL1271_STATE_OFF))
b54853f1
JO		 2567 goto out;
2568
a620865e 2569 ret = wl1271_ps_elp_wakeup(wl);
b54853f1
JO		 2570 if (ret < 0)
2571 goto out;
2572
536129c8 2573 if (wlvif->bss_type != BSS_TYPE_AP_BSS) {
7d057869 2574 if (*total & FIF_ALLMULTI)
0603d891
EP		 2575 ret = wl1271_acx_group_address_tbl(wl, wlvif, false,
2576 NULL, 0);
7d057869 2577 else if (fp)
0603d891
EP		 2578 ret = wl1271_acx_group_address_tbl(wl, wlvif,
2579 fp->enabled,
7d057869
AN		 2580 fp->mc_list,
2581 fp->mc_list_length);
2582 if (ret < 0)
2583 goto out_sleep;
2584 }
f5fc0f86 2585
08c1d1c7
EP		 2586 /*
2587 * the fw doesn't provide an api to configure the filters. instead,
2588 * the filters configuration is based on the active roles / ROC
2589 * state.
2590 */
b54853f1
JO		 2591
2592out_sleep:
2593 wl1271_ps_elp_sleep(wl);
2594
2595out:
2596 mutex_unlock(&wl->mutex);
14b228a0 2597 kfree(fp);
f5fc0f86
LC		 2598}
2599
7f179b46
AN		 2600static int wl1271_record_ap_key(struct wl1271 *wl, u8 id, u8 key_type,
2601 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
2602 u16 tx_seq_16)
2603{
2604 struct wl1271_ap_key *ap_key;
2605 int i;
2606
2607 wl1271_debug(DEBUG_CRYPT, "record ap key id %d", (int)id);
2608
2609 if (key_size > MAX_KEY_SIZE)
2610 return -EINVAL;
2611
2612 /*
2613 * Find next free entry in ap_keys. Also check we are not replacing
2614 * an existing key.
2615 */
2616 for (i = 0; i < MAX_NUM_KEYS; i++) {
2617 if (wl->recorded_ap_keys[i] == NULL)
2618 break;
2619
2620 if (wl->recorded_ap_keys[i]->id == id) {
2621 wl1271_warning("trying to record key replacement");
2622 return -EINVAL;
2623 }
2624 }
2625
2626 if (i == MAX_NUM_KEYS)
2627 return -EBUSY;
2628
2629 ap_key = kzalloc(sizeof(*ap_key), GFP_KERNEL);
2630 if (!ap_key)
2631 return -ENOMEM;
2632
2633 ap_key->id = id;
2634 ap_key->key_type = key_type;
2635 ap_key->key_size = key_size;
2636 memcpy(ap_key->key, key, key_size);
2637 ap_key->hlid = hlid;
2638 ap_key->tx_seq_32 = tx_seq_32;
2639 ap_key->tx_seq_16 = tx_seq_16;
2640
2641 wl->recorded_ap_keys[i] = ap_key;
2642 return 0;
2643}
2644
2645static void wl1271_free_ap_keys(struct wl1271 *wl)
2646{
2647 int i;
2648
2649 for (i = 0; i < MAX_NUM_KEYS; i++) {
2650 kfree(wl->recorded_ap_keys[i]);
2651 wl->recorded_ap_keys[i] = NULL;
2652 }
2653}
2654
2655static int wl1271_ap_init_hwenc(struct wl1271 *wl)
2656{
2657 int i, ret = 0;
2658 struct wl1271_ap_key *key;
2659 bool wep_key_added = false;
2660
2661 for (i = 0; i < MAX_NUM_KEYS; i++) {
7f97b487 2662 u8 hlid;
7f179b46
AN		 2663 if (wl->recorded_ap_keys[i] == NULL)
2664 break;
2665
2666 key = wl->recorded_ap_keys[i];
7f97b487
EP		 2667 hlid = key->hlid;
2668 if (hlid == WL12XX_INVALID_LINK_ID)
2669 hlid = wl->ap_bcast_hlid;
2670
7f179b46
AN		 2671 ret = wl1271_cmd_set_ap_key(wl, KEY_ADD_OR_REPLACE,
2672 key->id, key->key_type,
2673 key->key_size, key->key,
7f97b487 2674 hlid, key->tx_seq_32,
7f179b46
AN		 2675 key->tx_seq_16);
2676 if (ret < 0)
2677 goto out;
2678
2679 if (key->key_type == KEY_WEP)
2680 wep_key_added = true;
2681 }
2682
2683 if (wep_key_added) {
c690ec81 2684 ret = wl12xx_cmd_set_default_wep_key(wl, wl->default_key,
e51ae9be 2685 wl->ap_bcast_hlid);
7f179b46
AN		 2686 if (ret < 0)
2687 goto out;
2688 }
2689
2690out:
2691 wl1271_free_ap_keys(wl);
2692 return ret;
2693}
2694
536129c8
EP		 2695static int wl1271_set_key(struct wl1271 *wl, struct wl12xx_vif *wlvif,
2696 u16 action, u8 id, u8 key_type,
7f179b46
AN		 2697 u8 key_size, const u8 *key, u32 tx_seq_32,
2698 u16 tx_seq_16, struct ieee80211_sta *sta)
2699{
2700 int ret;
536129c8 2701 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
7f179b46
AN		 2702
2703 if (is_ap) {
2704 struct wl1271_station *wl_sta;
2705 u8 hlid;
2706
2707 if (sta) {
2708 wl_sta = (struct wl1271_station *)sta->drv_priv;
2709 hlid = wl_sta->hlid;
2710 } else {
e51ae9be 2711 hlid = wl->ap_bcast_hlid;
7f179b46
AN		 2712 }
2713
2714 if (!test_bit(WL1271_FLAG_AP_STARTED, &wl->flags)) {
2715 /*
2716 * We do not support removing keys after AP shutdown.
2717 * Pretend we do to make mac80211 happy.
2718 */
2719 if (action != KEY_ADD_OR_REPLACE)
2720 return 0;
2721
2722 ret = wl1271_record_ap_key(wl, id,
2723 key_type, key_size,
2724 key, hlid, tx_seq_32,
2725 tx_seq_16);
2726 } else {
2727 ret = wl1271_cmd_set_ap_key(wl, action,
2728 id, key_type, key_size,
2729 key, hlid, tx_seq_32,
2730 tx_seq_16);
2731 }
2732
2733 if (ret < 0)
2734 return ret;
2735 } else {
2736 const u8 *addr;
2737 static const u8 bcast_addr[ETH_ALEN] = {
2738 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
2739 };
2740
e9eb8cbe
GE		 2741 /*
2742 * A STA set to GEM cipher requires 2 tx spare blocks.
2743 * Return to default value when GEM cipher key is removed
2744 */
2745 if (key_type == KEY_GEM) {
2746 if (action == KEY_ADD_OR_REPLACE)
2747 wl->tx_spare_blocks = 2;
2748 else if (action == KEY_REMOVE)
2749 wl->tx_spare_blocks = TX_HW_BLOCK_SPARE_DEFAULT;
2750 }
2751
7f179b46
AN		 2752 addr = sta ? sta->addr : bcast_addr;
2753
2754 if (is_zero_ether_addr(addr)) {
2755 /* We dont support TX only encryption */
2756 return -EOPNOTSUPP;
2757 }
2758
2759 /* The wl1271 does not allow to remove unicast keys - they
2760 will be cleared automatically on next CMD_JOIN. Ignore the
2761 request silently, as we dont want the mac80211 to emit
2762 an error message. */
2763 if (action == KEY_REMOVE && !is_broadcast_ether_addr(addr))
2764 return 0;
2765
010d3d30
EP		 2766 /* don't remove key if hlid was already deleted */
2767 if (action == KEY_REMOVE &&
2768 wl->sta_hlid == WL12XX_INVALID_LINK_ID)
2769 return 0;
2770
7f179b46
AN		 2771 ret = wl1271_cmd_set_sta_key(wl, action,
2772 id, key_type, key_size,
2773 key, addr, tx_seq_32,
2774 tx_seq_16);
2775 if (ret < 0)
2776 return ret;
2777
2778 /* the default WEP key needs to be configured at least once */
2779 if (key_type == KEY_WEP) {
c690ec81
EP		 2780 ret = wl12xx_cmd_set_default_wep_key(wl,
2781 wl->default_key,
2782 wl->sta_hlid);
7f179b46
AN		 2783 if (ret < 0)
2784 return ret;
2785 }
2786 }
2787
2788 return 0;
2789}
2790
f5fc0f86
LC		 2791static int wl1271_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
2792 struct ieee80211_vif *vif,
2793 struct ieee80211_sta *sta,
2794 struct ieee80211_key_conf *key_conf)
2795{
2796 struct wl1271 *wl = hw->priv;
536129c8 2797 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
f5fc0f86 2798 int ret;
ac4e4ce5
JO		 2799 u32 tx_seq_32 = 0;
2800 u16 tx_seq_16 = 0;
f5fc0f86
LC		 2801 u8 key_type;
2802
f5fc0f86
LC		 2803 wl1271_debug(DEBUG_MAC80211, "mac80211 set key");
2804
7f179b46 2805 wl1271_debug(DEBUG_CRYPT, "CMD: 0x%x sta: %p", cmd, sta);
f5fc0f86 2806 wl1271_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x",
97359d12 2807 key_conf->cipher, key_conf->keyidx,
f5fc0f86
LC		 2808 key_conf->keylen, key_conf->flags);
2809 wl1271_dump(DEBUG_CRYPT, "KEY: ", key_conf->key, key_conf->keylen);
2810
f5fc0f86
LC		 2811 mutex_lock(&wl->mutex);
2812
f8d9802f
JO		 2813 if (unlikely(wl->state == WL1271_STATE_OFF)) {
2814 ret = -EAGAIN;
2815 goto out_unlock;
2816 }
2817
a620865e 2818 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 2819 if (ret < 0)
2820 goto out_unlock;
2821
97359d12
JB		 2822 switch (key_conf->cipher) {
2823 case WLAN_CIPHER_SUITE_WEP40:
2824 case WLAN_CIPHER_SUITE_WEP104:
f5fc0f86
LC		 2825 key_type = KEY_WEP;
2826
2827 key_conf->hw_key_idx = key_conf->keyidx;
2828 break;
97359d12 2829 case WLAN_CIPHER_SUITE_TKIP:
f5fc0f86
LC		 2830 key_type = KEY_TKIP;
2831
2832 key_conf->hw_key_idx = key_conf->keyidx;
04e36fc5
JO		 2833 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
2834 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
f5fc0f86 2835 break;
97359d12 2836 case WLAN_CIPHER_SUITE_CCMP:
f5fc0f86
LC		 2837 key_type = KEY_AES;
2838
2839 key_conf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
04e36fc5
JO		 2840 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
2841 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
f5fc0f86 2842 break;
7a55724e
JO		 2843 case WL1271_CIPHER_SUITE_GEM:
2844 key_type = KEY_GEM;
2845 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
2846 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
2847 break;
f5fc0f86 2848 default:
97359d12 2849 wl1271_error("Unknown key algo 0x%x", key_conf->cipher);
f5fc0f86
LC		 2850
2851 ret = -EOPNOTSUPP;
2852 goto out_sleep;
2853 }
2854
2855 switch (cmd) {
2856 case SET_KEY:
536129c8 2857 ret = wl1271_set_key(wl, wlvif, KEY_ADD_OR_REPLACE,
7f179b46
AN		 2858 key_conf->keyidx, key_type,
2859 key_conf->keylen, key_conf->key,
2860 tx_seq_32, tx_seq_16, sta);
f5fc0f86
LC		 2861 if (ret < 0) {
2862 wl1271_error("Could not add or replace key");
2863 goto out_sleep;
2864 }
2865 break;
2866
2867 case DISABLE_KEY:
536129c8 2868 ret = wl1271_set_key(wl, wlvif, KEY_REMOVE,
7f179b46
AN		 2869 key_conf->keyidx, key_type,
2870 key_conf->keylen, key_conf->key,
2871 0, 0, sta);
f5fc0f86
LC		 2872 if (ret < 0) {
2873 wl1271_error("Could not remove key");
2874 goto out_sleep;
2875 }
2876 break;
2877
2878 default:
2879 wl1271_error("Unsupported key cmd 0x%x", cmd);
2880 ret = -EOPNOTSUPP;
f5fc0f86
LC		 2881 break;
2882 }
2883
2884out_sleep:
2885 wl1271_ps_elp_sleep(wl);
2886
2887out_unlock:
2888 mutex_unlock(&wl->mutex);
2889
f5fc0f86
LC		 2890 return ret;
2891}
2892
2893static int wl1271_op_hw_scan(struct ieee80211_hw *hw,
a060bbfe 2894 struct ieee80211_vif *vif,
f5fc0f86
LC		 2895 struct cfg80211_scan_request *req)
2896{
2897 struct wl1271 *wl = hw->priv;
7edebf56
EP		 2898 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
2899
f5fc0f86
LC		 2900 int ret;
2901 u8 *ssid = NULL;
abb0b3bf 2902 size_t len = 0;
f5fc0f86
LC		 2903
2904 wl1271_debug(DEBUG_MAC80211, "mac80211 hw scan");
2905
2906 if (req->n_ssids) {
2907 ssid = req->ssids[0].ssid;
abb0b3bf 2908 len = req->ssids[0].ssid_len;
f5fc0f86
LC		 2909 }
2910
2911 mutex_lock(&wl->mutex);
2912
b739a42c
JO		 2913 if (wl->state == WL1271_STATE_OFF) {
2914 /*
2915 * We cannot return -EBUSY here because cfg80211 will expect
2916 * a call to ieee80211_scan_completed if we do - in this case
2917 * there won't be any call.
2918 */
2919 ret = -EAGAIN;
2920 goto out;
2921 }
2922
a620865e 2923 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 2924 if (ret < 0)
2925 goto out;
2926
251c177f
EP		 2927 /* cancel ROC before scanning */
2928 if (wl12xx_is_roc(wl)) {
2929 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags)) {
2930 /* don't allow scanning right now */
2931 ret = -EBUSY;
2932 goto out_sleep;
2933 }
7edebf56
EP		 2934 wl12xx_croc(wl, wlvif->dev_role_id);
2935 wl12xx_cmd_role_stop_dev(wl, wlvif);
251c177f 2936 }
f5fc0f86 2937
784f694d 2938 ret = wl1271_scan(hw->priv, vif, ssid, len, req);
251c177f 2939out_sleep:
f5fc0f86 2940 wl1271_ps_elp_sleep(wl);
f5fc0f86
LC		 2941out:
2942 mutex_unlock(&wl->mutex);
2943
2944 return ret;
2945}
2946
73ecce31
EP		 2947static void wl1271_op_cancel_hw_scan(struct ieee80211_hw *hw,
2948 struct ieee80211_vif *vif)
2949{
2950 struct wl1271 *wl = hw->priv;
2951 int ret;
2952
2953 wl1271_debug(DEBUG_MAC80211, "mac80211 cancel hw scan");
2954
2955 mutex_lock(&wl->mutex);
2956
2957 if (wl->state == WL1271_STATE_OFF)
2958 goto out;
2959
2960 if (wl->scan.state == WL1271_SCAN_STATE_IDLE)
2961 goto out;
2962
2963 ret = wl1271_ps_elp_wakeup(wl);
2964 if (ret < 0)
2965 goto out;
2966
2967 if (wl->scan.state != WL1271_SCAN_STATE_DONE) {
2968 ret = wl1271_scan_stop(wl);
2969 if (ret < 0)
2970 goto out_sleep;
2971 }
2972 wl->scan.state = WL1271_SCAN_STATE_IDLE;
2973 memset(wl->scan.scanned_ch, 0, sizeof(wl->scan.scanned_ch));
784f694d 2974 wl->scan_vif = NULL;
73ecce31
EP		 2975 wl->scan.req = NULL;
2976 ieee80211_scan_completed(wl->hw, true);
2977
2978out_sleep:
2979 wl1271_ps_elp_sleep(wl);
2980out:
2981 mutex_unlock(&wl->mutex);
2982
2983 cancel_delayed_work_sync(&wl->scan_complete_work);
2984}
2985
33c2c06c
LC		 2986static int wl1271_op_sched_scan_start(struct ieee80211_hw *hw,
2987 struct ieee80211_vif *vif,
2988 struct cfg80211_sched_scan_request *req,
2989 struct ieee80211_sched_scan_ies *ies)
2990{
2991 struct wl1271 *wl = hw->priv;
536129c8 2992 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
33c2c06c
LC		 2993 int ret;
2994
2995 wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_start");
2996
2997 mutex_lock(&wl->mutex);
2998
2999 ret = wl1271_ps_elp_wakeup(wl);
3000 if (ret < 0)
3001 goto out;
3002
536129c8 3003 ret = wl1271_scan_sched_scan_config(wl, wlvif, req, ies);
33c2c06c
LC		 3004 if (ret < 0)
3005 goto out_sleep;
3006
536129c8 3007 ret = wl1271_scan_sched_scan_start(wl, wlvif);
33c2c06c
LC		 3008 if (ret < 0)
3009 goto out_sleep;
3010
3011 wl->sched_scanning = true;
3012
3013out_sleep:
3014 wl1271_ps_elp_sleep(wl);
3015out:
3016 mutex_unlock(&wl->mutex);
3017 return ret;
3018}
3019
3020static void wl1271_op_sched_scan_stop(struct ieee80211_hw *hw,
3021 struct ieee80211_vif *vif)
3022{
3023 struct wl1271 *wl = hw->priv;
3024 int ret;
3025
3026 wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_stop");
3027
3028 mutex_lock(&wl->mutex);
3029
3030 ret = wl1271_ps_elp_wakeup(wl);
3031 if (ret < 0)
3032 goto out;
3033
3034 wl1271_scan_sched_scan_stop(wl);
3035
3036 wl1271_ps_elp_sleep(wl);
3037out:
3038 mutex_unlock(&wl->mutex);
3039}
3040
68d069c4
AN		 3041static int wl1271_op_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
3042{
3043 struct wl1271 *wl = hw->priv;
3044 int ret = 0;
3045
3046 mutex_lock(&wl->mutex);
3047
3048 if (unlikely(wl->state == WL1271_STATE_OFF)) {
3049 ret = -EAGAIN;
3050 goto out;
3051 }
3052
a620865e 3053 ret = wl1271_ps_elp_wakeup(wl);
68d069c4
AN		 3054 if (ret < 0)
3055 goto out;
3056
5f704d18 3057 ret = wl1271_acx_frag_threshold(wl, value);
68d069c4
AN		 3058 if (ret < 0)
3059 wl1271_warning("wl1271_op_set_frag_threshold failed: %d", ret);
3060
3061 wl1271_ps_elp_sleep(wl);
3062
3063out:
3064 mutex_unlock(&wl->mutex);
3065
3066 return ret;
3067}
3068
f5fc0f86
LC		 3069static int wl1271_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
3070{
3071 struct wl1271 *wl = hw->priv;
0603d891
EP		 3072 struct ieee80211_vif *vif = wl->vif;
3073 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
aecb0565 3074 int ret = 0;
f5fc0f86
LC		 3075
3076 mutex_lock(&wl->mutex);
3077
f8d9802f
JO		 3078 if (unlikely(wl->state == WL1271_STATE_OFF)) {
3079 ret = -EAGAIN;
aecb0565 3080 goto out;
f8d9802f 3081 }
aecb0565 3082
a620865e 3083 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 3084 if (ret < 0)
3085 goto out;
3086
0603d891 3087 ret = wl1271_acx_rts_threshold(wl, wlvif, value);
f5fc0f86
LC		 3088 if (ret < 0)
3089 wl1271_warning("wl1271_op_set_rts_threshold failed: %d", ret);
3090
3091 wl1271_ps_elp_sleep(wl);
3092
3093out:
3094 mutex_unlock(&wl->mutex);
3095
3096 return ret;
3097}
3098
1fe9f161 3099static int wl1271_ssid_set(struct ieee80211_vif *vif, struct sk_buff *skb,
2f6724b2 3100 int offset)
30240fc7 3101{
1fe9f161 3102 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
889cb360
EP		 3103 u8 ssid_len;
3104 const u8 *ptr = cfg80211_find_ie(WLAN_EID_SSID, skb->data + offset,
3105 skb->len - offset);
30240fc7 3106
889cb360
EP		 3107 if (!ptr) {
3108 wl1271_error("No SSID in IEs!");
3109 return -ENOENT;
3110 }
3111
3112 ssid_len = ptr[1];
3113 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
3114 wl1271_error("SSID is too long!");
3115 return -EINVAL;
30240fc7 3116 }
e78a287a 3117
1fe9f161
EP		 3118 wlvif->ssid_len = ssid_len;
3119 memcpy(wlvif->ssid, ptr+2, ssid_len);
889cb360 3120 return 0;
30240fc7
JO		 3121}
3122
d48055d9
EP		 3123static void wl12xx_remove_ie(struct sk_buff *skb, u8 eid, int ieoffset)
3124{
3125 int len;
3126 const u8 *next, *end = skb->data + skb->len;
3127 u8 *ie = (u8 *)cfg80211_find_ie(eid, skb->data + ieoffset,
3128 skb->len - ieoffset);
3129 if (!ie)
3130 return;
3131 len = ie[1] + 2;
3132 next = ie + len;
3133 memmove(ie, next, end - next);
3134 skb_trim(skb, skb->len - len);
3135}
3136
26b4bf2e
EP		 3137static void wl12xx_remove_vendor_ie(struct sk_buff *skb,
3138 unsigned int oui, u8 oui_type,
3139 int ieoffset)
3140{
3141 int len;
3142 const u8 *next, *end = skb->data + skb->len;
3143 u8 *ie = (u8 *)cfg80211_find_vendor_ie(oui, oui_type,
3144 skb->data + ieoffset,
3145 skb->len - ieoffset);
3146 if (!ie)
3147 return;
3148 len = ie[1] + 2;
3149 next = ie + len;
3150 memmove(ie, next, end - next);
3151 skb_trim(skb, skb->len - len);
3152}
3153
68eaaf6e 3154static int wl1271_ap_set_probe_resp_tmpl(struct wl1271 *wl,
1fe9f161 3155 struct ieee80211_vif *vif,
68eaaf6e
AN		 3156 u8 *probe_rsp_data,
3157 size_t probe_rsp_len,
3158 u32 rates)
3159{
1fe9f161
EP		 3160 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3161 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
68eaaf6e
AN		 3162 u8 probe_rsp_templ[WL1271_CMD_TEMPL_MAX_SIZE];
3163 int ssid_ie_offset, ie_offset, templ_len;
3164 const u8 *ptr;
3165
3166 /* no need to change probe response if the SSID is set correctly */
1fe9f161 3167 if (wlvif->ssid_len > 0)
68eaaf6e
AN		 3168 return wl1271_cmd_template_set(wl,
3169 CMD_TEMPL_AP_PROBE_RESPONSE,
3170 probe_rsp_data,
3171 probe_rsp_len, 0,
3172 rates);
3173
3174 if (probe_rsp_len + bss_conf->ssid_len > WL1271_CMD_TEMPL_MAX_SIZE) {
3175 wl1271_error("probe_rsp template too big");
3176 return -EINVAL;
3177 }
3178
3179 /* start searching from IE offset */
3180 ie_offset = offsetof(struct ieee80211_mgmt, u.probe_resp.variable);
3181
3182 ptr = cfg80211_find_ie(WLAN_EID_SSID, probe_rsp_data + ie_offset,
3183 probe_rsp_len - ie_offset);
3184 if (!ptr) {
3185 wl1271_error("No SSID in beacon!");
3186 return -EINVAL;
3187 }
3188
3189 ssid_ie_offset = ptr - probe_rsp_data;
3190 ptr += (ptr[1] + 2);
3191
3192 memcpy(probe_rsp_templ, probe_rsp_data, ssid_ie_offset);
3193
3194 /* insert SSID from bss_conf */
3195 probe_rsp_templ[ssid_ie_offset] = WLAN_EID_SSID;
3196 probe_rsp_templ[ssid_ie_offset + 1] = bss_conf->ssid_len;
3197 memcpy(probe_rsp_templ + ssid_ie_offset + 2,
3198 bss_conf->ssid, bss_conf->ssid_len);
3199 templ_len = ssid_ie_offset + 2 + bss_conf->ssid_len;
3200
3201 memcpy(probe_rsp_templ + ssid_ie_offset + 2 + bss_conf->ssid_len,
3202 ptr, probe_rsp_len - (ptr - probe_rsp_data));
3203 templ_len += probe_rsp_len - (ptr - probe_rsp_data);
3204
3205 return wl1271_cmd_template_set(wl,
3206 CMD_TEMPL_AP_PROBE_RESPONSE,
3207 probe_rsp_templ,
3208 templ_len, 0,
3209 rates);
3210}
3211
e78a287a 3212static int wl1271_bss_erp_info_changed(struct wl1271 *wl,
0603d891 3213 struct ieee80211_vif *vif,
f5fc0f86
LC		 3214 struct ieee80211_bss_conf *bss_conf,
3215 u32 changed)
3216{
0603d891 3217 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
e78a287a 3218 int ret = 0;
f5fc0f86 3219
e78a287a
AN		 3220 if (changed & BSS_CHANGED_ERP_SLOT) {
3221 if (bss_conf->use_short_slot)
0603d891 3222 ret = wl1271_acx_slot(wl, wlvif, SLOT_TIME_SHORT);
e78a287a 3223 else
0603d891 3224 ret = wl1271_acx_slot(wl, wlvif, SLOT_TIME_LONG);
e78a287a
AN		 3225 if (ret < 0) {
3226 wl1271_warning("Set slot time failed %d", ret);
3227 goto out;
3228 }
3229 }
f5fc0f86 3230
e78a287a
AN		 3231 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
3232 if (bss_conf->use_short_preamble)
0603d891 3233 wl1271_acx_set_preamble(wl, wlvif, ACX_PREAMBLE_SHORT);
e78a287a 3234 else
0603d891 3235 wl1271_acx_set_preamble(wl, wlvif, ACX_PREAMBLE_LONG);
e78a287a 3236 }
f5fc0f86 3237
e78a287a
AN		 3238 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
3239 if (bss_conf->use_cts_prot)
0603d891
EP		 3240 ret = wl1271_acx_cts_protect(wl, wlvif,
3241 CTSPROTECT_ENABLE);
e78a287a 3242 else
0603d891
EP		 3243 ret = wl1271_acx_cts_protect(wl, wlvif,
3244 CTSPROTECT_DISABLE);
e78a287a
AN		 3245 if (ret < 0) {
3246 wl1271_warning("Set ctsprotect failed %d", ret);
3247 goto out;
3248 }
3249 }
f8d9802f 3250
e78a287a
AN		 3251out:
3252 return ret;
3253}
f5fc0f86 3254
e78a287a
AN		 3255static int wl1271_bss_beacon_info_changed(struct wl1271 *wl,
3256 struct ieee80211_vif *vif,
3257 struct ieee80211_bss_conf *bss_conf,
3258 u32 changed)
3259{
87fbcb0f 3260 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
536129c8 3261 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
e78a287a
AN		 3262 int ret = 0;
3263
3264 if ((changed & BSS_CHANGED_BEACON_INT)) {
3265 wl1271_debug(DEBUG_MASTER, "beacon interval updated: %d",
60e84c2e
JO		 3266 bss_conf->beacon_int);
3267
3268 wl->beacon_int = bss_conf->beacon_int;
60e84c2e
JO		 3269 }
3270
e78a287a
AN		 3271 if ((changed & BSS_CHANGED_BEACON)) {
3272 struct ieee80211_hdr *hdr;
af7fbb28 3273 u32 min_rate;
e78a287a
AN		 3274 int ieoffset = offsetof(struct ieee80211_mgmt,
3275 u.beacon.variable);
3276 struct sk_buff *beacon = ieee80211_beacon_get(wl->hw, vif);
3277 u16 tmpl_id;
3278
3279 if (!beacon)
3280 goto out;
3281
3282 wl1271_debug(DEBUG_MASTER, "beacon updated");
3283
1fe9f161 3284 ret = wl1271_ssid_set(vif, beacon, ieoffset);
e78a287a
AN		 3285 if (ret < 0) {
3286 dev_kfree_skb(beacon);
3287 goto out;
3288 }
87fbcb0f 3289 min_rate = wl1271_tx_min_rate_get(wl, wlvif->basic_rate_set);
e78a287a
AN		 3290 tmpl_id = is_ap ? CMD_TEMPL_AP_BEACON :
3291 CMD_TEMPL_BEACON;
3292 ret = wl1271_cmd_template_set(wl, tmpl_id,
3293 beacon->data,
3294 beacon->len, 0,
af7fbb28 3295 min_rate);
e78a287a
AN		 3296 if (ret < 0) {
3297 dev_kfree_skb(beacon);
3298 goto out;
3299 }
3300
d48055d9
EP		 3301 /* remove TIM ie from probe response */
3302 wl12xx_remove_ie(beacon, WLAN_EID_TIM, ieoffset);
3303
26b4bf2e
EP		 3304 /*
3305 * remove p2p ie from probe response.
3306 * the fw reponds to probe requests that don't include
3307 * the p2p ie. probe requests with p2p ie will be passed,
3308 * and will be responded by the supplicant (the spec
3309 * forbids including the p2p ie when responding to probe
3310 * requests that didn't include it).
3311 */
3312 wl12xx_remove_vendor_ie(beacon, WLAN_OUI_WFA,
3313 WLAN_OUI_TYPE_WFA_P2P, ieoffset);
3314
e78a287a
AN		 3315 hdr = (struct ieee80211_hdr *) beacon->data;
3316 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3317 IEEE80211_STYPE_PROBE_RESP);
68eaaf6e 3318 if (is_ap)
1fe9f161 3319 ret = wl1271_ap_set_probe_resp_tmpl(wl, vif,
68eaaf6e
AN		 3320 beacon->data,
3321 beacon->len,
af7fbb28 3322 min_rate);
68eaaf6e
AN		 3323 else
3324 ret = wl1271_cmd_template_set(wl,
3325 CMD_TEMPL_PROBE_RESPONSE,
3326 beacon->data,
3327 beacon->len, 0,
af7fbb28 3328 min_rate);
e78a287a
AN		 3329 dev_kfree_skb(beacon);
3330 if (ret < 0)
3331 goto out;
3332 }
3333
3334out:
3335 return ret;
3336}
3337
3338/* AP mode changes */
3339static void wl1271_bss_info_changed_ap(struct wl1271 *wl,
3340 struct ieee80211_vif *vif,
3341 struct ieee80211_bss_conf *bss_conf,
3342 u32 changed)
3343{
87fbcb0f 3344 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
e78a287a 3345 int ret = 0;
e0d8bbf0 3346
e78a287a
AN		 3347 if ((changed & BSS_CHANGED_BASIC_RATES)) {
3348 u32 rates = bss_conf->basic_rates;
5da11dcd 3349
87fbcb0f 3350 wlvif->basic_rate_set = wl1271_tx_enabled_rates_get(wl, rates,
af7fbb28 3351 wl->band);
d2d66c56 3352 wlvif->basic_rate = wl1271_tx_min_rate_get(wl,
87fbcb0f 3353 wlvif->basic_rate_set);
70f47424 3354
87fbcb0f 3355 ret = wl1271_init_ap_rates(wl, wlvif);
e78a287a 3356 if (ret < 0) {
70f47424 3357 wl1271_error("AP rate policy change failed %d", ret);
e78a287a
AN		 3358 goto out;
3359 }
c45a85b5 3360
784f694d 3361 ret = wl1271_ap_init_templates(wl, vif);
c45a85b5
AN		 3362 if (ret < 0)
3363 goto out;
e78a287a 3364 }
2f6724b2 3365
e78a287a
AN		 3366 ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf, changed);
3367 if (ret < 0)
3368 goto out;
30240fc7 3369
e78a287a
AN		 3370 if ((changed & BSS_CHANGED_BEACON_ENABLED)) {
3371 if (bss_conf->enable_beacon) {
3372 if (!test_bit(WL1271_FLAG_AP_STARTED, &wl->flags)) {
87fbcb0f 3373 ret = wl12xx_cmd_role_start_ap(wl, wlvif);
e78a287a
AN		 3374 if (ret < 0)
3375 goto out;
e0d8bbf0 3376
7f179b46
AN		 3377 ret = wl1271_ap_init_hwenc(wl);
3378 if (ret < 0)
3379 goto out;
cf42039f
AN		 3380
3381 set_bit(WL1271_FLAG_AP_STARTED, &wl->flags);
3382 wl1271_debug(DEBUG_AP, "started AP");
e0d8bbf0 3383 }
e78a287a
AN		 3384 } else {
3385 if (test_bit(WL1271_FLAG_AP_STARTED, &wl->flags)) {
0603d891 3386 ret = wl12xx_cmd_role_stop_ap(wl, wlvif);
e78a287a
AN		 3387 if (ret < 0)
3388 goto out;
e0d8bbf0 3389
e78a287a
AN		 3390 clear_bit(WL1271_FLAG_AP_STARTED, &wl->flags);
3391 wl1271_debug(DEBUG_AP, "stopped AP");
3392 }
3393 }
3394 }
e0d8bbf0 3395
0603d891 3396 ret = wl1271_bss_erp_info_changed(wl, vif, bss_conf, changed);
e78a287a
AN		 3397 if (ret < 0)
3398 goto out;
0b932ab9
AN		 3399
3400 /* Handle HT information change */
3401 if ((changed & BSS_CHANGED_HT) &&
3402 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
0603d891 3403 ret = wl1271_acx_set_ht_information(wl, wlvif,
0b932ab9
AN		 3404 bss_conf->ht_operation_mode);
3405 if (ret < 0) {
3406 wl1271_warning("Set ht information failed %d", ret);
3407 goto out;
3408 }
3409 }
3410
e78a287a
AN		 3411out:
3412 return;
3413}
8bf29b0e 3414
e78a287a
AN		 3415/* STA/IBSS mode changes */
3416static void wl1271_bss_info_changed_sta(struct wl1271 *wl,
3417 struct ieee80211_vif *vif,
3418 struct ieee80211_bss_conf *bss_conf,
3419 u32 changed)
3420{
87fbcb0f 3421 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
e78a287a 3422 bool do_join = false, set_assoc = false;
536129c8 3423 bool is_ibss = (wlvif->bss_type == BSS_TYPE_IBSS);
227e81e1 3424 bool ibss_joined = false;
72c2d9e5 3425 u32 sta_rate_set = 0;
e78a287a 3426 int ret;
2d6e4e76 3427 struct ieee80211_sta *sta;
a100885d
AN		 3428 bool sta_exists = false;
3429 struct ieee80211_sta_ht_cap sta_ht_cap;
e78a287a
AN		 3430
3431 if (is_ibss) {
3432 ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf,
3433 changed);
3434 if (ret < 0)
3435 goto out;
e0d8bbf0
JO		 3436 }
3437
227e81e1
EP		 3438 if (changed & BSS_CHANGED_IBSS) {
3439 if (bss_conf->ibss_joined) {
3440 set_bit(WL1271_FLAG_IBSS_JOINED, &wl->flags);
3441 ibss_joined = true;
3442 } else {
3443 if (test_and_clear_bit(WL1271_FLAG_IBSS_JOINED,
3444 &wl->flags)) {
0603d891 3445 wl1271_unjoin(wl, wlvif);
7edebf56
EP		 3446 wl12xx_cmd_role_start_dev(wl, wlvif);
3447 wl12xx_roc(wl, wlvif->dev_role_id);
227e81e1
EP		 3448 }
3449 }
3450 }
3451
3452 if ((changed & BSS_CHANGED_BEACON_INT) && ibss_joined)
e78a287a
AN		 3453 do_join = true;
3454
3455 /* Need to update the SSID (for filtering etc) */
227e81e1 3456 if ((changed & BSS_CHANGED_BEACON) && ibss_joined)
e78a287a
AN		 3457 do_join = true;
3458
227e81e1 3459 if ((changed & BSS_CHANGED_BEACON_ENABLED) && ibss_joined) {
5da11dcd
JO		 3460 wl1271_debug(DEBUG_ADHOC, "ad-hoc beaconing: %s",
3461 bss_conf->enable_beacon ? "enabled" : "disabled");
3462
5da11dcd
JO		 3463 do_join = true;
3464 }
3465
e78a287a 3466 if ((changed & BSS_CHANGED_CQM)) {
00236aed
JO		 3467 bool enable = false;
3468 if (bss_conf->cqm_rssi_thold)
3469 enable = true;
0603d891 3470 ret = wl1271_acx_rssi_snr_trigger(wl, wlvif, enable,
00236aed
JO		 3471 bss_conf->cqm_rssi_thold,
3472 bss_conf->cqm_rssi_hyst);
3473 if (ret < 0)
3474 goto out;
3475 wl->rssi_thold = bss_conf->cqm_rssi_thold;
3476 }
3477
cdf09495
EP		 3478 if (changed & BSS_CHANGED_BSSID)
3479 if (!is_zero_ether_addr(bss_conf->bssid)) {
d2d66c56 3480 ret = wl12xx_cmd_build_null_data(wl, wlvif);
fa287b8f
EP		 3481 if (ret < 0)
3482 goto out;
30240fc7 3483
784f694d 3484 ret = wl1271_build_qos_null_data(wl, vif);
fa287b8f
EP		 3485 if (ret < 0)
3486 goto out;
30240fc7 3487
fa287b8f
EP		 3488 /* Need to update the BSSID (for filtering etc) */
3489 do_join = true;
3490 }
30240fc7 3491
0f9c8250
AN		 3492 if (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_HT)) {
3493 rcu_read_lock();
3494 sta = ieee80211_find_sta(vif, bss_conf->bssid);
3495 if (!sta)
3496 goto sta_not_found;
3497
72c2d9e5
EP		 3498 /* save the supp_rates of the ap */
3499 sta_rate_set = sta->supp_rates[wl->hw->conf.channel->band];
3500 if (sta->ht_cap.ht_supported)
3501 sta_rate_set |=
3502 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET);
a100885d
AN		 3503 sta_ht_cap = sta->ht_cap;
3504 sta_exists = true;
72c2d9e5 3505
0f9c8250
AN		 3506sta_not_found:
3507 rcu_read_unlock();
72c2d9e5 3508 }
72c2d9e5 3509
e78a287a 3510 if ((changed & BSS_CHANGED_ASSOC)) {
f5fc0f86 3511 if (bss_conf->assoc) {
ebba60c6 3512 u32 rates;
2f6724b2 3513 int ieoffset;
6840e37a 3514 wlvif->aid = bss_conf->aid;
69e5434c 3515 set_assoc = true;
f5fc0f86 3516
90494a90
JO		 3517 wl->ps_poll_failures = 0;
3518
ebba60c6
JO		 3519 /*
3520 * use basic rates from AP, and determine lowest rate
3521 * to use with control frames.
3522 */
3523 rates = bss_conf->basic_rates;
87fbcb0f 3524 wlvif->basic_rate_set =
af7fbb28
EP		 3525 wl1271_tx_enabled_rates_get(wl, rates,
3526 wl->band);
d2d66c56 3527 wlvif->basic_rate =
87fbcb0f
EP		 3528 wl1271_tx_min_rate_get(wl,
3529 wlvif->basic_rate_set);
72c2d9e5 3530 if (sta_rate_set)
30d0c8fd
EP		 3531 wlvif->rate_set =
3532 wl1271_tx_enabled_rates_get(wl,
af7fbb28
EP		 3533 sta_rate_set,
3534 wl->band);
30d0c8fd 3535 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
ebba60c6 3536 if (ret < 0)
e78a287a 3537 goto out;
ebba60c6 3538
ae751bab
LC		 3539 /*
3540 * with wl1271, we don't need to update the
3541 * beacon_int and dtim_period, because the firmware
3542 * updates it by itself when the first beacon is
3543 * received after a join.
3544 */
6840e37a 3545 ret = wl1271_cmd_build_ps_poll(wl, wlvif, wlvif->aid);
f5fc0f86 3546 if (ret < 0)
e78a287a 3547 goto out;
f5fc0f86 3548
c2b2d99b 3549 /*
2f6724b2 3550 * Get a template for hardware connection maintenance
c2b2d99b 3551 */
bddb29b8
EP		 3552 dev_kfree_skb(wlvif->probereq);
3553 wlvif->probereq = wl1271_cmd_build_ap_probe_req(wl,
3554 NULL);
2f6724b2
JO		 3555 ieoffset = offsetof(struct ieee80211_mgmt,
3556 u.probe_req.variable);
bddb29b8 3557 wl1271_ssid_set(vif, wlvif->probereq, ieoffset);
c2b2d99b 3558
6ccbb92e 3559 /* enable the connection monitoring feature */
0603d891 3560 ret = wl1271_acx_conn_monit_params(wl, wlvif, true);
f5fc0f86 3561 if (ret < 0)
e78a287a 3562 goto out;
d94cd297
JO		 3563 } else {
3564 /* use defaults when not associated */
30df14d0
EP		 3565 bool was_assoc =
3566 !!test_and_clear_bit(WL1271_FLAG_STA_ASSOCIATED,
3567 &wl->flags);
251c177f
EP		 3568 bool was_ifup =
3569 !!test_and_clear_bit(WL1271_FLAG_STA_STATE_SENT,
3570 &wl->flags);
6840e37a 3571 wlvif->aid = 0;
6ccbb92e 3572
2f6724b2 3573 /* free probe-request template */
bddb29b8
EP		 3574 dev_kfree_skb(wlvif->probereq);
3575 wlvif->probereq = NULL;
2f6724b2 3576
8d2ef7bd 3577 /* re-enable dynamic ps - just in case */
f532be6d 3578 ieee80211_enable_dyn_ps(wl->vif);
8d2ef7bd 3579
ebba60c6 3580 /* revert back to minimum rates for the current band */
87fbcb0f 3581 wl1271_set_band_rate(wl, wlvif);
d2d66c56 3582 wlvif->basic_rate =
87fbcb0f
EP		 3583 wl1271_tx_min_rate_get(wl,
3584 wlvif->basic_rate_set);
30d0c8fd 3585 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
ebba60c6 3586 if (ret < 0)
e78a287a 3587 goto out;
ebba60c6 3588
6ccbb92e 3589 /* disable connection monitor features */
0603d891 3590 ret = wl1271_acx_conn_monit_params(wl, wlvif, false);
c1899554
JO		 3591
3592 /* Disable the keep-alive feature */
0603d891 3593 ret = wl1271_acx_keep_alive_mode(wl, wlvif, false);
6ccbb92e 3594 if (ret < 0)
e78a287a 3595 goto out;
b84a7d3d
JO		 3596
3597 /* restore the bssid filter and go to dummy bssid */
30df14d0 3598 if (was_assoc) {
251c177f
EP		 3599 u32 conf_flags = wl->hw->conf.flags;
3600 /*
3601 * we might have to disable roc, if there was
3602 * no IF_OPER_UP notification.
3603 */
3604 if (!was_ifup) {
0603d891 3605 ret = wl12xx_croc(wl, wlvif->role_id);
251c177f
EP		 3606 if (ret < 0)
3607 goto out;
3608 }
3609 /*
3610 * (we also need to disable roc in case of
3611 * roaming on the same channel. until we will
3612 * have a better flow...)
3613 */
7edebf56
EP		 3614 if (test_bit(wlvif->dev_role_id, wl->roc_map)) {
3615 ret = wl12xx_croc(wl,
3616 wlvif->dev_role_id);
251c177f
EP		 3617 if (ret < 0)
3618 goto out;
3619 }
3620
0603d891 3621 wl1271_unjoin(wl, wlvif);
251c177f 3622 if (!(conf_flags & IEEE80211_CONF_IDLE)) {
7edebf56
EP		 3623 wl12xx_cmd_role_start_dev(wl, wlvif);
3624 wl12xx_roc(wl, wlvif->dev_role_id);
251c177f 3625 }
30df14d0 3626 }
f5fc0f86 3627 }
f5fc0f86
LC		 3628 }
3629
d192d268
EP		 3630 if (changed & BSS_CHANGED_IBSS) {
3631 wl1271_debug(DEBUG_ADHOC, "ibss_joined: %d",
3632 bss_conf->ibss_joined);
3633
3634 if (bss_conf->ibss_joined) {
3635 u32 rates = bss_conf->basic_rates;
87fbcb0f 3636 wlvif->basic_rate_set =
af7fbb28
EP		 3637 wl1271_tx_enabled_rates_get(wl, rates,
3638 wl->band);
d2d66c56 3639 wlvif->basic_rate =
87fbcb0f
EP		 3640 wl1271_tx_min_rate_get(wl,
3641 wlvif->basic_rate_set);
d192d268 3642
06b660e1 3643 /* by default, use 11b + OFDM rates */
30d0c8fd
EP		 3644 wlvif->rate_set = CONF_TX_IBSS_DEFAULT_RATES;
3645 ret = wl1271_acx_sta_rate_policies(wl, wlvif);
d192d268
EP		 3646 if (ret < 0)
3647 goto out;
3648 }
3649 }
3650
0603d891 3651 ret = wl1271_bss_erp_info_changed(wl, vif, bss_conf, changed);
e78a287a
AN		 3652 if (ret < 0)
3653 goto out;
f5fc0f86 3654
ca52a5eb
JO		 3655 if (changed & BSS_CHANGED_ARP_FILTER) {
3656 __be32 addr = bss_conf->arp_addr_list[0];
536129c8 3657 WARN_ON(wlvif->bss_type != BSS_TYPE_STA_BSS);
ca52a5eb 3658
c5312772
EP		 3659 if (bss_conf->arp_addr_cnt == 1 &&
3660 bss_conf->arp_filter_enabled) {
3661 /*
3662 * The template should have been configured only upon
3663 * association. however, it seems that the correct ip
3664 * isn't being set (when sending), so we have to
3665 * reconfigure the template upon every ip change.
3666 */
d2d66c56 3667 ret = wl1271_cmd_build_arp_rsp(wl, wlvif, addr);
c5312772
EP		 3668 if (ret < 0) {
3669 wl1271_warning("build arp rsp failed: %d", ret);
e78a287a 3670 goto out;
c5312772
EP		 3671 }
3672
0603d891 3673 ret = wl1271_acx_arp_ip_filter(wl, wlvif,
e5e2f24b 3674 ACX_ARP_FILTER_ARP_FILTERING,
c5312772
EP		 3675 addr);
3676 } else
0603d891 3677 ret = wl1271_acx_arp_ip_filter(wl, wlvif, 0, addr);
ca52a5eb
JO		 3678
3679 if (ret < 0)
e78a287a 3680 goto out;
ca52a5eb
JO		 3681 }
3682
8bf29b0e 3683 if (do_join) {
87fbcb0f 3684 ret = wl1271_join(wl, wlvif, set_assoc);
8bf29b0e
JO		 3685 if (ret < 0) {
3686 wl1271_warning("cmd join failed %d", ret);
e78a287a 3687 goto out;
8bf29b0e 3688 }
251c177f
EP		 3689
3690 /* ROC until connected (after EAPOL exchange) */
3691 if (!is_ibss) {
0603d891 3692 ret = wl12xx_roc(wl, wlvif->role_id);
251c177f
EP		 3693 if (ret < 0)
3694 goto out;
3695
3696 wl1271_check_operstate(wl,
3697 ieee80211_get_operstate(vif));
3698 }
3699 /*
3700 * stop device role if started (we might already be in
3701 * STA role). TODO: make it better.
3702 */
7edebf56
EP		 3703 if (wlvif->dev_role_id != WL12XX_INVALID_ROLE_ID) {
3704 ret = wl12xx_croc(wl, wlvif->dev_role_id);
251c177f
EP		 3705 if (ret < 0)
3706 goto out;
3707
7edebf56 3708 ret = wl12xx_cmd_role_stop_dev(wl, wlvif);
251c177f
EP		 3709 if (ret < 0)
3710 goto out;
3711 }
05dba355
EP		 3712
3713 /* If we want to go in PSM but we're not there yet */
3714 if (test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags) &&
3715 !test_bit(WL1271_FLAG_PSM, &wl->flags)) {
3716 enum wl1271_cmd_ps_mode mode;
3717
3718 mode = STATION_POWER_SAVE_MODE;
0603d891 3719 ret = wl1271_ps_set_mode(wl, wlvif, mode,
d2d66c56 3720 wlvif->basic_rate,
05dba355
EP		 3721 true);
3722 if (ret < 0)
3723 goto out;
3724 }
c1899554
JO		 3725 }
3726
0b932ab9 3727 /* Handle new association with HT. Do this after join. */
0f9c8250
AN		 3728 if (sta_exists) {
3729 if ((changed & BSS_CHANGED_HT) &&
3730 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
0b932ab9
AN		 3731 ret = wl1271_acx_set_ht_capabilities(wl,
3732 &sta_ht_cap,
3733 true,
3734 wl->sta_hlid);
0f9c8250
AN		 3735 if (ret < 0) {
3736 wl1271_warning("Set ht cap true failed %d",
3737 ret);
3738 goto out;
3739 }
3740 }
3741 /* handle new association without HT and disassociation */
3742 else if (changed & BSS_CHANGED_ASSOC) {
0b932ab9
AN		 3743 ret = wl1271_acx_set_ht_capabilities(wl,
3744 &sta_ht_cap,
3745 false,
3746 wl->sta_hlid);
0f9c8250
AN		 3747 if (ret < 0) {
3748 wl1271_warning("Set ht cap false failed %d",
3749 ret);
3750 goto out;
3751 }
3752 }
3753 }
3754
0b932ab9
AN		 3755 /* Handle HT information change. Done after join. */
3756 if ((changed & BSS_CHANGED_HT) &&
0f9c8250 3757 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
0603d891 3758 ret = wl1271_acx_set_ht_information(wl, wlvif,
0f9c8250
AN		 3759 bss_conf->ht_operation_mode);
3760 if (ret < 0) {
3761 wl1271_warning("Set ht information failed %d", ret);
3762 goto out;
3763 }
3764 }
3765
e78a287a
AN		 3766out:
3767 return;
3768}
3769
3770static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
3771 struct ieee80211_vif *vif,
3772 struct ieee80211_bss_conf *bss_conf,
3773 u32 changed)
3774{
3775 struct wl1271 *wl = hw->priv;
536129c8
EP		 3776 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
3777 bool is_ap = (wlvif->bss_type == BSS_TYPE_AP_BSS);
e78a287a
AN		 3778 int ret;
3779
3780 wl1271_debug(DEBUG_MAC80211, "mac80211 bss info changed 0x%x",
3781 (int)changed);
3782
3783 mutex_lock(&wl->mutex);
3784
3785 if (unlikely(wl->state == WL1271_STATE_OFF))
3786 goto out;
3787
a620865e 3788 ret = wl1271_ps_elp_wakeup(wl);
e78a287a
AN		 3789 if (ret < 0)
3790 goto out;
3791
3792 if (is_ap)
3793 wl1271_bss_info_changed_ap(wl, vif, bss_conf, changed);
3794 else
3795 wl1271_bss_info_changed_sta(wl, vif, bss_conf, changed);
3796
f5fc0f86
LC		 3797 wl1271_ps_elp_sleep(wl);
3798
3799out:
3800 mutex_unlock(&wl->mutex);
3801}
3802
8a3a3c85
EP		 3803static int wl1271_op_conf_tx(struct ieee80211_hw *hw,
3804 struct ieee80211_vif *vif, u16 queue,
c6999d83
KV		 3805 const struct ieee80211_tx_queue_params *params)
3806{
3807 struct wl1271 *wl = hw->priv;
0603d891 3808 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
4695dc91 3809 u8 ps_scheme;
488fc540 3810 int ret = 0;
c6999d83
KV		 3811
3812 mutex_lock(&wl->mutex);
3813
3814 wl1271_debug(DEBUG_MAC80211, "mac80211 conf tx %d", queue);
3815
4695dc91
KV		 3816 if (params->uapsd)
3817 ps_scheme = CONF_PS_SCHEME_UPSD_TRIGGER;
3818 else
3819 ps_scheme = CONF_PS_SCHEME_LEGACY;
3820
488fc540
AN		 3821 if (wl->state == WL1271_STATE_OFF) {
3822 /*
3823 * If the state is off, the parameters will be recorded and
3824 * configured on init. This happens in AP-mode.
3825 */
3826 struct conf_tx_ac_category *conf_ac =
3827 &wl->conf.tx.ac_conf[wl1271_tx_get_queue(queue)];
3828 struct conf_tx_tid *conf_tid =
3829 &wl->conf.tx.tid_conf[wl1271_tx_get_queue(queue)];
3830
3831 conf_ac->ac = wl1271_tx_get_queue(queue);
3832 conf_ac->cw_min = (u8)params->cw_min;
3833 conf_ac->cw_max = params->cw_max;
3834 conf_ac->aifsn = params->aifs;
3835 conf_ac->tx_op_limit = params->txop << 5;
3836
3837 conf_tid->queue_id = wl1271_tx_get_queue(queue);
3838 conf_tid->channel_type = CONF_CHANNEL_TYPE_EDCF;
3839 conf_tid->tsid = wl1271_tx_get_queue(queue);
3840 conf_tid->ps_scheme = ps_scheme;
3841 conf_tid->ack_policy = CONF_ACK_POLICY_LEGACY;
3842 conf_tid->apsd_conf[0] = 0;
3843 conf_tid->apsd_conf[1] = 0;
c1b193eb
EP		 3844 goto out;
3845 }
488fc540 3846
c1b193eb
EP		 3847 ret = wl1271_ps_elp_wakeup(wl);
3848 if (ret < 0)
3849 goto out;
488fc540 3850
c1b193eb
EP		 3851 /*
3852 * the txop is confed in units of 32us by the mac80211,
3853 * we need us
3854 */
0603d891 3855 ret = wl1271_acx_ac_cfg(wl, wlvif, wl1271_tx_get_queue(queue),
c1b193eb
EP		 3856 params->cw_min, params->cw_max,
3857 params->aifs, params->txop << 5);
3858 if (ret < 0)
3859 goto out_sleep;
3860
0603d891 3861 ret = wl1271_acx_tid_cfg(wl, wlvif, wl1271_tx_get_queue(queue),
c1b193eb
EP		 3862 CONF_CHANNEL_TYPE_EDCF,
3863 wl1271_tx_get_queue(queue),
3864 ps_scheme, CONF_ACK_POLICY_LEGACY,
3865 0, 0);
c82c1dde
KV		 3866
3867out_sleep:
c1b193eb 3868 wl1271_ps_elp_sleep(wl);
c6999d83
KV		 3869
3870out:
3871 mutex_unlock(&wl->mutex);
3872
3873 return ret;
3874}
3875
37a41b4a
EP		 3876static u64 wl1271_op_get_tsf(struct ieee80211_hw *hw,
3877 struct ieee80211_vif *vif)
bbbb538e
JO		 3878{
3879
3880 struct wl1271 *wl = hw->priv;
3881 u64 mactime = ULLONG_MAX;
3882 int ret;
3883
3884 wl1271_debug(DEBUG_MAC80211, "mac80211 get tsf");
3885
3886 mutex_lock(&wl->mutex);
3887
f8d9802f
JO		 3888 if (unlikely(wl->state == WL1271_STATE_OFF))
3889 goto out;
3890
a620865e 3891 ret = wl1271_ps_elp_wakeup(wl);
bbbb538e
JO		 3892 if (ret < 0)
3893 goto out;
3894
3895 ret = wl1271_acx_tsf_info(wl, &mactime);
3896 if (ret < 0)
3897 goto out_sleep;
3898
3899out_sleep:
3900 wl1271_ps_elp_sleep(wl);
3901
3902out:
3903 mutex_unlock(&wl->mutex);
3904 return mactime;
3905}
f5fc0f86 3906
ece550d0
JL		 3907static int wl1271_op_get_survey(struct ieee80211_hw *hw, int idx,
3908 struct survey_info *survey)
3909{
3910 struct wl1271 *wl = hw->priv;
3911 struct ieee80211_conf *conf = &hw->conf;
b739a42c 3912
ece550d0
JL		 3913 if (idx != 0)
3914 return -ENOENT;
b739a42c 3915
ece550d0
JL		 3916 survey->channel = conf->channel;
3917 survey->filled = SURVEY_INFO_NOISE_DBM;
3918 survey->noise = wl->noise;
b739a42c 3919
ece550d0
JL		 3920 return 0;
3921}
3922
409622ec 3923static int wl1271_allocate_sta(struct wl1271 *wl,
f84f7d78
AN		 3924 struct ieee80211_sta *sta,
3925 u8 *hlid)
3926{
3927 struct wl1271_station *wl_sta;
3928 int id;
3929
3930 id = find_first_zero_bit(wl->ap_hlid_map, AP_MAX_STATIONS);
3931 if (id >= AP_MAX_STATIONS) {
3932 wl1271_warning("could not allocate HLID - too much stations");
3933 return -EBUSY;
3934 }
3935
3936 wl_sta = (struct wl1271_station *)sta->drv_priv;
04216da3 3937 set_bit(id, wl->ap_hlid_map);
f84f7d78
AN		 3938 wl_sta->hlid = WL1271_AP_STA_HLID_START + id;
3939 *hlid = wl_sta->hlid;
b622d992 3940 memcpy(wl->links[wl_sta->hlid].addr, sta->addr, ETH_ALEN);
da03209e 3941 wl->active_sta_count++;
f84f7d78
AN		 3942 return 0;
3943}
3944
f1acea9a 3945void wl1271_free_sta(struct wl1271 *wl, u8 hlid)
f84f7d78
AN		 3946{
3947 int id = hlid - WL1271_AP_STA_HLID_START;
3948
f1acea9a
AN		 3949 if (hlid < WL1271_AP_STA_HLID_START)
3950 return;
3951
3952 if (!test_bit(id, wl->ap_hlid_map))
409622ec
AN		 3953 return;
3954
04216da3 3955 clear_bit(id, wl->ap_hlid_map);
b622d992 3956 memset(wl->links[hlid].addr, 0, ETH_ALEN);
0f9c8250 3957 wl->links[hlid].ba_bitmap = 0;
a8c0ddb5 3958 wl1271_tx_reset_link_queues(wl, hlid);
b622d992
AN		 3959 __clear_bit(hlid, &wl->ap_ps_map);
3960 __clear_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
da03209e 3961 wl->active_sta_count--;
f84f7d78
AN		 3962}
3963
3964static int wl1271_op_sta_add(struct ieee80211_hw *hw,
3965 struct ieee80211_vif *vif,
3966 struct ieee80211_sta *sta)
3967{
3968 struct wl1271 *wl = hw->priv;
536129c8 3969 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
f84f7d78
AN		 3970 int ret = 0;
3971 u8 hlid;
3972
3973 mutex_lock(&wl->mutex);
3974
3975 if (unlikely(wl->state == WL1271_STATE_OFF))
3976 goto out;
3977
536129c8 3978 if (wlvif->bss_type != BSS_TYPE_AP_BSS)
f84f7d78
AN		 3979 goto out;
3980
3981 wl1271_debug(DEBUG_MAC80211, "mac80211 add sta %d", (int)sta->aid);
3982
409622ec 3983 ret = wl1271_allocate_sta(wl, sta, &hlid);
f84f7d78
AN		 3984 if (ret < 0)
3985 goto out;
3986
a620865e 3987 ret = wl1271_ps_elp_wakeup(wl);
f84f7d78 3988 if (ret < 0)
409622ec 3989 goto out_free_sta;
f84f7d78 3990
c690ec81 3991 ret = wl12xx_cmd_add_peer(wl, sta, hlid);
f84f7d78
AN		 3992 if (ret < 0)
3993 goto out_sleep;
3994
b67476ef
EP		 3995 ret = wl12xx_cmd_set_peer_state(wl, hlid);
3996 if (ret < 0)
3997 goto out_sleep;
3998
0b932ab9
AN		 3999 ret = wl1271_acx_set_ht_capabilities(wl, &sta->ht_cap, true, hlid);
4000 if (ret < 0)
4001 goto out_sleep;
4002
f84f7d78
AN		 4003out_sleep:
4004 wl1271_ps_elp_sleep(wl);
4005
409622ec
AN		 4006out_free_sta:
4007 if (ret < 0)
4008 wl1271_free_sta(wl, hlid);
4009
f84f7d78
AN		 4010out:
4011 mutex_unlock(&wl->mutex);
4012 return ret;
4013}
4014
4015static int wl1271_op_sta_remove(struct ieee80211_hw *hw,
4016 struct ieee80211_vif *vif,
4017 struct ieee80211_sta *sta)
4018{
4019 struct wl1271 *wl = hw->priv;
536129c8 4020 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
f84f7d78
AN		 4021 struct wl1271_station *wl_sta;
4022 int ret = 0, id;
4023
4024 mutex_lock(&wl->mutex);
4025
4026 if (unlikely(wl->state == WL1271_STATE_OFF))
4027 goto out;
4028
536129c8 4029 if (wlvif->bss_type != BSS_TYPE_AP_BSS)
f84f7d78
AN		 4030 goto out;
4031
4032 wl1271_debug(DEBUG_MAC80211, "mac80211 remove sta %d", (int)sta->aid);
4033
4034 wl_sta = (struct wl1271_station *)sta->drv_priv;
4035 id = wl_sta->hlid - WL1271_AP_STA_HLID_START;
4036 if (WARN_ON(!test_bit(id, wl->ap_hlid_map)))
4037 goto out;
4038
a620865e 4039 ret = wl1271_ps_elp_wakeup(wl);
f84f7d78
AN		 4040 if (ret < 0)
4041 goto out;
4042
c690ec81 4043 ret = wl12xx_cmd_remove_peer(wl, wl_sta->hlid);
f84f7d78
AN		 4044 if (ret < 0)
4045 goto out_sleep;
4046
409622ec 4047 wl1271_free_sta(wl, wl_sta->hlid);
f84f7d78
AN		 4048
4049out_sleep:
4050 wl1271_ps_elp_sleep(wl);
4051
4052out:
4053 mutex_unlock(&wl->mutex);
4054 return ret;
4055}
4056
4623ec7d
LC		 4057static int wl1271_op_ampdu_action(struct ieee80211_hw *hw,
4058 struct ieee80211_vif *vif,
4059 enum ieee80211_ampdu_mlme_action action,
4060 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
4061 u8 buf_size)
bbba3e68
LS		 4062{
4063 struct wl1271 *wl = hw->priv;
536129c8 4064 struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
bbba3e68 4065 int ret;
0f9c8250
AN		 4066 u8 hlid, *ba_bitmap;
4067
4068 wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu action %d tid %d", action,
4069 tid);
4070
4071 /* sanity check - the fields in FW are only 8bits wide */
4072 if (WARN_ON(tid > 0xFF))
4073 return -ENOTSUPP;
bbba3e68
LS		 4074
4075 mutex_lock(&wl->mutex);
4076
4077 if (unlikely(wl->state == WL1271_STATE_OFF)) {
4078 ret = -EAGAIN;
4079 goto out;
4080 }
4081
536129c8 4082 if (wlvif->bss_type == BSS_TYPE_STA_BSS) {
0f9c8250
AN		 4083 hlid = wl->sta_hlid;
4084 ba_bitmap = &wl->ba_rx_bitmap;
536129c8 4085 } else if (wlvif->bss_type == BSS_TYPE_AP_BSS) {
0f9c8250
AN		 4086 struct wl1271_station *wl_sta;
4087
4088 wl_sta = (struct wl1271_station *)sta->drv_priv;
4089 hlid = wl_sta->hlid;
4090 ba_bitmap = &wl->links[hlid].ba_bitmap;
4091 } else {
4092 ret = -EINVAL;
4093 goto out;
4094 }
4095
a620865e 4096 ret = wl1271_ps_elp_wakeup(wl);
bbba3e68
LS		 4097 if (ret < 0)
4098 goto out;
4099
70559a06
SL		 4100 wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu: Rx tid %d action %d",
4101 tid, action);
4102
bbba3e68
LS		 4103 switch (action) {
4104 case IEEE80211_AMPDU_RX_START:
0f9c8250 4105 if (!wl->ba_support || !wl->ba_allowed) {
bbba3e68 4106 ret = -ENOTSUPP;
0f9c8250
AN		 4107 break;
4108 }
4109
4110 if (wl->ba_rx_session_count >= RX_BA_MAX_SESSIONS) {
4111 ret = -EBUSY;
4112 wl1271_error("exceeded max RX BA sessions");
4113 break;
4114 }
4115
4116 if (*ba_bitmap & BIT(tid)) {
4117 ret = -EINVAL;
4118 wl1271_error("cannot enable RX BA session on active "
4119 "tid: %d", tid);
4120 break;
4121 }
4122
4123 ret = wl12xx_acx_set_ba_receiver_session(wl, tid, *ssn, true,
4124 hlid);
4125 if (!ret) {
4126 *ba_bitmap |= BIT(tid);
4127 wl->ba_rx_session_count++;
bbba3e68
LS		 4128 }
4129 break;
4130
4131 case IEEE80211_AMPDU_RX_STOP:
0f9c8250
AN		 4132 if (!(*ba_bitmap & BIT(tid))) {
4133 ret = -EINVAL;
4134 wl1271_error("no active RX BA session on tid: %d",
4135 tid);
4136 break;
4137 }
4138
4139 ret = wl12xx_acx_set_ba_receiver_session(wl, tid, 0, false,
4140 hlid);
4141 if (!ret) {
4142 *ba_bitmap &= ~BIT(tid);
4143 wl->ba_rx_session_count--;
4144 }
bbba3e68
LS		 4145 break;
4146
4147 /*
4148 * The BA initiator session management in FW independently.
4149 * Falling break here on purpose for all TX APDU commands.
4150 */
4151 case IEEE80211_AMPDU_TX_START:
4152 case IEEE80211_AMPDU_TX_STOP:
4153 case IEEE80211_AMPDU_TX_OPERATIONAL:
4154 ret = -EINVAL;
4155 break;
4156
4157 default:
4158 wl1271_error("Incorrect ampdu action id=%x\n", action);
4159 ret = -EINVAL;
4160 }
4161
4162 wl1271_ps_elp_sleep(wl);
4163
4164out:
4165 mutex_unlock(&wl->mutex);
4166
4167 return ret;
4168}
4169
af7fbb28
EP		 4170static int wl12xx_set_bitrate_mask(struct ieee80211_hw *hw,
4171 struct ieee80211_vif *vif,
4172 const struct cfg80211_bitrate_mask *mask)
4173{
4174 struct wl1271 *wl = hw->priv;
4175 int i;
4176
4177 wl1271_debug(DEBUG_MAC80211, "mac80211 set_bitrate_mask 0x%x 0x%x",
4178 mask->control[NL80211_BAND_2GHZ].legacy,
4179 mask->control[NL80211_BAND_5GHZ].legacy);
4180
4181 mutex_lock(&wl->mutex);
4182
4183 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
4184 wl->bitrate_masks[i] =
4185 wl1271_tx_enabled_rates_get(wl,
4186 mask->control[i].legacy,
4187 i);
4188 mutex_unlock(&wl->mutex);
4189
4190 return 0;
4191}
4192
6d158ff3
SL		 4193static void wl12xx_op_channel_switch(struct ieee80211_hw *hw,
4194 struct ieee80211_channel_switch *ch_switch)
4195{
4196 struct wl1271 *wl = hw->priv;
4197 int ret;
4198
4199 wl1271_debug(DEBUG_MAC80211, "mac80211 channel switch");
4200
4201 mutex_lock(&wl->mutex);
4202
4203 if (unlikely(wl->state == WL1271_STATE_OFF)) {
4204 mutex_unlock(&wl->mutex);
4205 ieee80211_chswitch_done(wl->vif, false);
4206 return;
4207 }
4208
4209 ret = wl1271_ps_elp_wakeup(wl);
4210 if (ret < 0)
4211 goto out;
4212
4213 ret = wl12xx_cmd_channel_switch(wl, ch_switch);
4214
4215 if (!ret)
4216 set_bit(WL1271_FLAG_CS_PROGRESS, &wl->flags);
4217
4218 wl1271_ps_elp_sleep(wl);
4219
4220out:
4221 mutex_unlock(&wl->mutex);
4222}
4223
33437893
AN		 4224static bool wl1271_tx_frames_pending(struct ieee80211_hw *hw)
4225{
4226 struct wl1271 *wl = hw->priv;
4227 bool ret = false;
4228
4229 mutex_lock(&wl->mutex);
4230
4231 if (unlikely(wl->state == WL1271_STATE_OFF))
4232 goto out;
4233
4234 /* packets are considered pending if in the TX queue or the FW */
f1a46384 4235 ret = (wl1271_tx_total_queue_count(wl) > 0) || (wl->tx_frames_cnt > 0);
33437893
AN		 4236out:
4237 mutex_unlock(&wl->mutex);
4238
4239 return ret;
4240}
4241
f5fc0f86
LC		 4242/* can't be const, mac80211 writes to this */
4243static struct ieee80211_rate wl1271_rates[] = {
4244 { .bitrate = 10,
2b60100b
JO		 4245 .hw_value = CONF_HW_BIT_RATE_1MBPS,
4246 .hw_value_short = CONF_HW_BIT_RATE_1MBPS, },
f5fc0f86 4247 { .bitrate = 20,
2b60100b
JO		 4248 .hw_value = CONF_HW_BIT_RATE_2MBPS,
4249 .hw_value_short = CONF_HW_BIT_RATE_2MBPS,
f5fc0f86
LC		 4250 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4251 { .bitrate = 55,
2b60100b
JO		 4252 .hw_value = CONF_HW_BIT_RATE_5_5MBPS,
4253 .hw_value_short = CONF_HW_BIT_RATE_5_5MBPS,
f5fc0f86
LC		 4254 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4255 { .bitrate = 110,
2b60100b
JO		 4256 .hw_value = CONF_HW_BIT_RATE_11MBPS,
4257 .hw_value_short = CONF_HW_BIT_RATE_11MBPS,
f5fc0f86
LC		 4258 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
4259 { .bitrate = 60,
2b60100b
JO		 4260 .hw_value = CONF_HW_BIT_RATE_6MBPS,
4261 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
f5fc0f86 4262 { .bitrate = 90,
2b60100b
JO		 4263 .hw_value = CONF_HW_BIT_RATE_9MBPS,
4264 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
f5fc0f86 4265 { .bitrate = 120,
2b60100b
JO		 4266 .hw_value = CONF_HW_BIT_RATE_12MBPS,
4267 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
f5fc0f86 4268 { .bitrate = 180,
2b60100b
JO		 4269 .hw_value = CONF_HW_BIT_RATE_18MBPS,
4270 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
f5fc0f86 4271 { .bitrate = 240,
2b60100b
JO		 4272 .hw_value = CONF_HW_BIT_RATE_24MBPS,
4273 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
f5fc0f86 4274 { .bitrate = 360,
2b60100b
JO		 4275 .hw_value = CONF_HW_BIT_RATE_36MBPS,
4276 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
f5fc0f86 4277 { .bitrate = 480,
2b60100b
JO		 4278 .hw_value = CONF_HW_BIT_RATE_48MBPS,
4279 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
f5fc0f86 4280 { .bitrate = 540,
2b60100b
JO		 4281 .hw_value = CONF_HW_BIT_RATE_54MBPS,
4282 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
f5fc0f86
LC		 4283};
4284
fa97f46b 4285/* can't be const, mac80211 writes to this */
f5fc0f86 4286static struct ieee80211_channel wl1271_channels[] = {
a2d0e3f1 4287 { .hw_value = 1, .center_freq = 2412, .max_power = 25 },
fa21c7a9 4288 { .hw_value = 2, .center_freq = 2417, .max_power = 25 },
fa97f46b
JO		 4289 { .hw_value = 3, .center_freq = 2422, .max_power = 25 },
4290 { .hw_value = 4, .center_freq = 2427, .max_power = 25 },
4291 { .hw_value = 5, .center_freq = 2432, .max_power = 25 },
fa21c7a9 4292 { .hw_value = 6, .center_freq = 2437, .max_power = 25 },
fa97f46b
JO		 4293 { .hw_value = 7, .center_freq = 2442, .max_power = 25 },
4294 { .hw_value = 8, .center_freq = 2447, .max_power = 25 },
4295 { .hw_value = 9, .center_freq = 2452, .max_power = 25 },
fa21c7a9 4296 { .hw_value = 10, .center_freq = 2457, .max_power = 25 },
fa97f46b
JO		 4297 { .hw_value = 11, .center_freq = 2462, .max_power = 25 },
4298 { .hw_value = 12, .center_freq = 2467, .max_power = 25 },
4299 { .hw_value = 13, .center_freq = 2472, .max_power = 25 },
6c89b7b2 4300 { .hw_value = 14, .center_freq = 2484, .max_power = 25 },
f5fc0f86
LC		 4301};
4302
f876bb9a 4303/* mapping to indexes for wl1271_rates */
a0ea9493 4304static const u8 wl1271_rate_to_idx_2ghz[] = {
f876bb9a 4305 /* MCS rates are used only with 11n */
18357850
SL		 4306 7, /* CONF_HW_RXTX_RATE_MCS7 */
4307 6, /* CONF_HW_RXTX_RATE_MCS6 */
4308 5, /* CONF_HW_RXTX_RATE_MCS5 */
4309 4, /* CONF_HW_RXTX_RATE_MCS4 */
4310 3, /* CONF_HW_RXTX_RATE_MCS3 */
4311 2, /* CONF_HW_RXTX_RATE_MCS2 */
4312 1, /* CONF_HW_RXTX_RATE_MCS1 */
4313 0, /* CONF_HW_RXTX_RATE_MCS0 */
f876bb9a
JO		 4314
4315 11, /* CONF_HW_RXTX_RATE_54 */
4316 10, /* CONF_HW_RXTX_RATE_48 */
4317 9, /* CONF_HW_RXTX_RATE_36 */
4318 8, /* CONF_HW_RXTX_RATE_24 */
4319
4320 /* TI-specific rate */
4321 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_22 */
4322
4323 7, /* CONF_HW_RXTX_RATE_18 */
4324 6, /* CONF_HW_RXTX_RATE_12 */
4325 3, /* CONF_HW_RXTX_RATE_11 */
4326 5, /* CONF_HW_RXTX_RATE_9 */
4327 4, /* CONF_HW_RXTX_RATE_6 */
4328 2, /* CONF_HW_RXTX_RATE_5_5 */
4329 1, /* CONF_HW_RXTX_RATE_2 */
4330 0 /* CONF_HW_RXTX_RATE_1 */
4331};
4332
e8b03a2b
SL		 4333/* 11n STA capabilities */
4334#define HW_RX_HIGHEST_RATE 72
4335
00d20100 4336#define WL12XX_HT_CAP { \
871d0c3b
SL		 4337 .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 | \
4338 (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT), \
e8b03a2b
SL		 4339 .ht_supported = true, \
4340 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K, \
4341 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_8, \
4342 .mcs = { \
4343 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, \
4344 .rx_highest = cpu_to_le16(HW_RX_HIGHEST_RATE), \
4345 .tx_params = IEEE80211_HT_MCS_TX_DEFINED, \
4346 }, \
4347}
4348
f5fc0f86
LC		 4349/* can't be const, mac80211 writes to this */
4350static struct ieee80211_supported_band wl1271_band_2ghz = {
4351 .channels = wl1271_channels,
4352 .n_channels = ARRAY_SIZE(wl1271_channels),
4353 .bitrates = wl1271_rates,
4354 .n_bitrates = ARRAY_SIZE(wl1271_rates),
00d20100 4355 .ht_cap = WL12XX_HT_CAP,
f5fc0f86
LC		 4356};
4357
1ebec3d7
TP		 4358/* 5 GHz data rates for WL1273 */
4359static struct ieee80211_rate wl1271_rates_5ghz[] = {
4360 { .bitrate = 60,
4361 .hw_value = CONF_HW_BIT_RATE_6MBPS,
4362 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
4363 { .bitrate = 90,
4364 .hw_value = CONF_HW_BIT_RATE_9MBPS,
4365 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
4366 { .bitrate = 120,
4367 .hw_value = CONF_HW_BIT_RATE_12MBPS,
4368 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
4369 { .bitrate = 180,
4370 .hw_value = CONF_HW_BIT_RATE_18MBPS,
4371 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
4372 { .bitrate = 240,
4373 .hw_value = CONF_HW_BIT_RATE_24MBPS,
4374 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
4375 { .bitrate = 360,
4376 .hw_value = CONF_HW_BIT_RATE_36MBPS,
4377 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
4378 { .bitrate = 480,
4379 .hw_value = CONF_HW_BIT_RATE_48MBPS,
4380 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
4381 { .bitrate = 540,
4382 .hw_value = CONF_HW_BIT_RATE_54MBPS,
4383 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
4384};
4385
fa97f46b 4386/* 5 GHz band channels for WL1273 */
1ebec3d7 4387static struct ieee80211_channel wl1271_channels_5ghz[] = {
6cfa5cff
AN		 4388 { .hw_value = 7, .center_freq = 5035, .max_power = 25 },
4389 { .hw_value = 8, .center_freq = 5040, .max_power = 25 },
4390 { .hw_value = 9, .center_freq = 5045, .max_power = 25 },
4391 { .hw_value = 11, .center_freq = 5055, .max_power = 25 },
4392 { .hw_value = 12, .center_freq = 5060, .max_power = 25 },
4393 { .hw_value = 16, .center_freq = 5080, .max_power = 25 },
4394 { .hw_value = 34, .center_freq = 5170, .max_power = 25 },
4395 { .hw_value = 36, .center_freq = 5180, .max_power = 25 },
4396 { .hw_value = 38, .center_freq = 5190, .max_power = 25 },
4397 { .hw_value = 40, .center_freq = 5200, .max_power = 25 },
4398 { .hw_value = 42, .center_freq = 5210, .max_power = 25 },
4399 { .hw_value = 44, .center_freq = 5220, .max_power = 25 },
4400 { .hw_value = 46, .center_freq = 5230, .max_power = 25 },
4401 { .hw_value = 48, .center_freq = 5240, .max_power = 25 },
4402 { .hw_value = 52, .center_freq = 5260, .max_power = 25 },
4403 { .hw_value = 56, .center_freq = 5280, .max_power = 25 },
4404 { .hw_value = 60, .center_freq = 5300, .max_power = 25 },
4405 { .hw_value = 64, .center_freq = 5320, .max_power = 25 },
4406 { .hw_value = 100, .center_freq = 5500, .max_power = 25 },
4407 { .hw_value = 104, .center_freq = 5520, .max_power = 25 },
4408 { .hw_value = 108, .center_freq = 5540, .max_power = 25 },
4409 { .hw_value = 112, .center_freq = 5560, .max_power = 25 },
4410 { .hw_value = 116, .center_freq = 5580, .max_power = 25 },
4411 { .hw_value = 120, .center_freq = 5600, .max_power = 25 },
4412 { .hw_value = 124, .center_freq = 5620, .max_power = 25 },
4413 { .hw_value = 128, .center_freq = 5640, .max_power = 25 },
4414 { .hw_value = 132, .center_freq = 5660, .max_power = 25 },
4415 { .hw_value = 136, .center_freq = 5680, .max_power = 25 },
4416 { .hw_value = 140, .center_freq = 5700, .max_power = 25 },
4417 { .hw_value = 149, .center_freq = 5745, .max_power = 25 },
4418 { .hw_value = 153, .center_freq = 5765, .max_power = 25 },
4419 { .hw_value = 157, .center_freq = 5785, .max_power = 25 },
4420 { .hw_value = 161, .center_freq = 5805, .max_power = 25 },
4421 { .hw_value = 165, .center_freq = 5825, .max_power = 25 },
1ebec3d7
TP		 4422};
4423
f876bb9a 4424/* mapping to indexes for wl1271_rates_5ghz */
a0ea9493 4425static const u8 wl1271_rate_to_idx_5ghz[] = {
f876bb9a 4426 /* MCS rates are used only with 11n */
18357850
SL		 4427 7, /* CONF_HW_RXTX_RATE_MCS7 */
4428 6, /* CONF_HW_RXTX_RATE_MCS6 */
4429 5, /* CONF_HW_RXTX_RATE_MCS5 */
4430 4, /* CONF_HW_RXTX_RATE_MCS4 */
4431 3, /* CONF_HW_RXTX_RATE_MCS3 */
4432 2, /* CONF_HW_RXTX_RATE_MCS2 */
4433 1, /* CONF_HW_RXTX_RATE_MCS1 */
4434 0, /* CONF_HW_RXTX_RATE_MCS0 */
f876bb9a
JO		 4435
4436 7, /* CONF_HW_RXTX_RATE_54 */
4437 6, /* CONF_HW_RXTX_RATE_48 */
4438 5, /* CONF_HW_RXTX_RATE_36 */
4439 4, /* CONF_HW_RXTX_RATE_24 */
4440
4441 /* TI-specific rate */
4442 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_22 */
4443
4444 3, /* CONF_HW_RXTX_RATE_18 */
4445 2, /* CONF_HW_RXTX_RATE_12 */
4446 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_11 */
4447 1, /* CONF_HW_RXTX_RATE_9 */
4448 0, /* CONF_HW_RXTX_RATE_6 */
4449 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_5_5 */
4450 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_2 */
4451 CONF_HW_RXTX_RATE_UNSUPPORTED /* CONF_HW_RXTX_RATE_1 */
4452};
1ebec3d7
TP		 4453
4454static struct ieee80211_supported_band wl1271_band_5ghz = {
4455 .channels = wl1271_channels_5ghz,
4456 .n_channels = ARRAY_SIZE(wl1271_channels_5ghz),
4457 .bitrates = wl1271_rates_5ghz,
4458 .n_bitrates = ARRAY_SIZE(wl1271_rates_5ghz),
00d20100 4459 .ht_cap = WL12XX_HT_CAP,
1ebec3d7
TP		 4460};
4461
a0ea9493 4462static const u8 *wl1271_band_rate_to_idx[] = {
f876bb9a
JO		 4463 [IEEE80211_BAND_2GHZ] = wl1271_rate_to_idx_2ghz,
4464 [IEEE80211_BAND_5GHZ] = wl1271_rate_to_idx_5ghz
4465};
4466
f5fc0f86
LC		 4467static const struct ieee80211_ops wl1271_ops = {
4468 .start = wl1271_op_start,
4469 .stop = wl1271_op_stop,
4470 .add_interface = wl1271_op_add_interface,
4471 .remove_interface = wl1271_op_remove_interface,
f634a4e7 4472#ifdef CONFIG_PM
402e4861
EP		 4473 .suspend = wl1271_op_suspend,
4474 .resume = wl1271_op_resume,
f634a4e7 4475#endif
f5fc0f86 4476 .config = wl1271_op_config,
c87dec9f 4477 .prepare_multicast = wl1271_op_prepare_multicast,
f5fc0f86
LC		 4478 .configure_filter = wl1271_op_configure_filter,
4479 .tx = wl1271_op_tx,
4480 .set_key = wl1271_op_set_key,
4481 .hw_scan = wl1271_op_hw_scan,
73ecce31 4482 .cancel_hw_scan = wl1271_op_cancel_hw_scan,
33c2c06c
LC		 4483 .sched_scan_start = wl1271_op_sched_scan_start,
4484 .sched_scan_stop = wl1271_op_sched_scan_stop,
f5fc0f86 4485 .bss_info_changed = wl1271_op_bss_info_changed,
68d069c4 4486 .set_frag_threshold = wl1271_op_set_frag_threshold,
f5fc0f86 4487 .set_rts_threshold = wl1271_op_set_rts_threshold,
c6999d83 4488 .conf_tx = wl1271_op_conf_tx,
bbbb538e 4489 .get_tsf = wl1271_op_get_tsf,
ece550d0 4490 .get_survey = wl1271_op_get_survey,
f84f7d78
AN		 4491 .sta_add = wl1271_op_sta_add,
4492 .sta_remove = wl1271_op_sta_remove,
bbba3e68 4493 .ampdu_action = wl1271_op_ampdu_action,
33437893 4494 .tx_frames_pending = wl1271_tx_frames_pending,
af7fbb28 4495 .set_bitrate_mask = wl12xx_set_bitrate_mask,
6d158ff3 4496 .channel_switch = wl12xx_op_channel_switch,
c8c90873 4497 CFG80211_TESTMODE_CMD(wl1271_tm_cmd)
f5fc0f86
LC		 4498};
4499
f876bb9a 4500
6a2de93b 4501u8 wl1271_rate_to_idx(int rate, enum ieee80211_band band)
f876bb9a
JO		 4502{
4503 u8 idx;
4504
6a2de93b 4505 BUG_ON(band >= sizeof(wl1271_band_rate_to_idx)/sizeof(u8 *));
f876bb9a
JO		 4506
4507 if (unlikely(rate >= CONF_HW_RXTX_RATE_MAX)) {
4508 wl1271_error("Illegal RX rate from HW: %d", rate);
4509 return 0;
4510 }
4511
6a2de93b 4512 idx = wl1271_band_rate_to_idx[band][rate];
f876bb9a
JO		 4513 if (unlikely(idx == CONF_HW_RXTX_RATE_UNSUPPORTED)) {
4514 wl1271_error("Unsupported RX rate from HW: %d", rate);
4515 return 0;
4516 }
4517
4518 return idx;
4519}
4520
7fc3a864
JO		 4521static ssize_t wl1271_sysfs_show_bt_coex_state(struct device *dev,
4522 struct device_attribute *attr,
4523 char *buf)
4524{
4525 struct wl1271 *wl = dev_get_drvdata(dev);
4526 ssize_t len;
4527
2f63b011 4528 len = PAGE_SIZE;
7fc3a864
JO		 4529
4530 mutex_lock(&wl->mutex);
4531 len = snprintf(buf, len, "%d\n\n0 - off\n1 - on\n",
4532 wl->sg_enabled);
4533 mutex_unlock(&wl->mutex);
4534
4535 return len;
4536
4537}
4538
4539static ssize_t wl1271_sysfs_store_bt_coex_state(struct device *dev,
4540 struct device_attribute *attr,
4541 const char *buf, size_t count)
4542{
4543 struct wl1271 *wl = dev_get_drvdata(dev);
4544 unsigned long res;
4545 int ret;
4546
6277ed65 4547 ret = kstrtoul(buf, 10, &res);
7fc3a864
JO		 4548 if (ret < 0) {
4549 wl1271_warning("incorrect value written to bt_coex_mode");
4550 return count;
4551 }
4552
4553 mutex_lock(&wl->mutex);
4554
4555 res = !!res;
4556
4557 if (res == wl->sg_enabled)
4558 goto out;
4559
4560 wl->sg_enabled = res;
4561
4562 if (wl->state == WL1271_STATE_OFF)
4563 goto out;
4564
a620865e 4565 ret = wl1271_ps_elp_wakeup(wl);
7fc3a864
JO		 4566 if (ret < 0)
4567 goto out;
4568
4569 wl1271_acx_sg_enable(wl, wl->sg_enabled);
4570 wl1271_ps_elp_sleep(wl);
4571
4572 out:
4573 mutex_unlock(&wl->mutex);
4574 return count;
4575}
4576
4577static DEVICE_ATTR(bt_coex_state, S_IRUGO | S_IWUSR,
4578 wl1271_sysfs_show_bt_coex_state,
4579 wl1271_sysfs_store_bt_coex_state);
4580
d717fd61
JO		 4581static ssize_t wl1271_sysfs_show_hw_pg_ver(struct device *dev,
4582 struct device_attribute *attr,
4583 char *buf)
4584{
4585 struct wl1271 *wl = dev_get_drvdata(dev);
4586 ssize_t len;
4587
2f63b011 4588 len = PAGE_SIZE;
d717fd61
JO		 4589
4590 mutex_lock(&wl->mutex);
4591 if (wl->hw_pg_ver >= 0)
4592 len = snprintf(buf, len, "%d\n", wl->hw_pg_ver);
4593 else
4594 len = snprintf(buf, len, "n/a\n");
4595 mutex_unlock(&wl->mutex);
4596
4597 return len;
4598}
4599
6f07b72a 4600static DEVICE_ATTR(hw_pg_ver, S_IRUGO,
d717fd61
JO		 4601 wl1271_sysfs_show_hw_pg_ver, NULL);
4602
95dac04f
IY		 4603static ssize_t wl1271_sysfs_read_fwlog(struct file *filp, struct kobject *kobj,
4604 struct bin_attribute *bin_attr,
4605 char *buffer, loff_t pos, size_t count)
4606{
4607 struct device *dev = container_of(kobj, struct device, kobj);
4608 struct wl1271 *wl = dev_get_drvdata(dev);
4609 ssize_t len;
4610 int ret;
4611
4612 ret = mutex_lock_interruptible(&wl->mutex);
4613 if (ret < 0)
4614 return -ERESTARTSYS;
4615
4616 /* Let only one thread read the log at a time, blocking others */
4617 while (wl->fwlog_size == 0) {
4618 DEFINE_WAIT(wait);
4619
4620 prepare_to_wait_exclusive(&wl->fwlog_waitq,
4621 &wait,
4622 TASK_INTERRUPTIBLE);
4623
4624 if (wl->fwlog_size != 0) {
4625 finish_wait(&wl->fwlog_waitq, &wait);
4626 break;
4627 }
4628
4629 mutex_unlock(&wl->mutex);
4630
4631 schedule();
4632 finish_wait(&wl->fwlog_waitq, &wait);
4633
4634 if (signal_pending(current))
4635 return -ERESTARTSYS;
4636
4637 ret = mutex_lock_interruptible(&wl->mutex);
4638 if (ret < 0)
4639 return -ERESTARTSYS;
4640 }
4641
4642 /* Check if the fwlog is still valid */
4643 if (wl->fwlog_size < 0) {
4644 mutex_unlock(&wl->mutex);
4645 return 0;
4646 }
4647
4648 /* Seeking is not supported - old logs are not kept. Disregard pos. */
4649 len = min(count, (size_t)wl->fwlog_size);
4650 wl->fwlog_size -= len;
4651 memcpy(buffer, wl->fwlog, len);
4652
4653 /* Make room for new messages */
4654 memmove(wl->fwlog, wl->fwlog + len, wl->fwlog_size);
4655
4656 mutex_unlock(&wl->mutex);
4657
4658 return len;
4659}
4660
4661static struct bin_attribute fwlog_attr = {
4662 .attr = {.name = "fwlog", .mode = S_IRUSR},
4663 .read = wl1271_sysfs_read_fwlog,
4664};
4665
2d5e82b8 4666int wl1271_register_hw(struct wl1271 *wl)
f5fc0f86
LC		 4667{
4668 int ret;
4669
4670 if (wl->mac80211_registered)
4671 return 0;
4672
31d26ec6
AN		 4673 ret = wl1271_fetch_nvs(wl);
4674 if (ret == 0) {
bc765bf3
SL		 4675 /* NOTE: The wl->nvs->nvs element must be first, in
4676 * order to simplify the casting, we assume it is at
4677 * the beginning of the wl->nvs structure.
4678 */
4679 u8 *nvs_ptr = (u8 *)wl->nvs;
31d26ec6
AN		 4680
4681 wl->mac_addr[0] = nvs_ptr[11];
4682 wl->mac_addr[1] = nvs_ptr[10];
4683 wl->mac_addr[2] = nvs_ptr[6];
4684 wl->mac_addr[3] = nvs_ptr[5];
4685 wl->mac_addr[4] = nvs_ptr[4];
4686 wl->mac_addr[5] = nvs_ptr[3];
4687 }
4688
f5fc0f86
LC		 4689 SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr);
4690
4691 ret = ieee80211_register_hw(wl->hw);
4692 if (ret < 0) {
4693 wl1271_error("unable to register mac80211 hw: %d", ret);
4694 return ret;
4695 }
4696
4697 wl->mac80211_registered = true;
4698
d60080ae
EP		 4699 wl1271_debugfs_init(wl);
4700
c2c192ac
JO		 4701 register_netdevice_notifier(&wl1271_dev_notifier);
4702
f5fc0f86
LC		 4703 wl1271_notice("loaded");
4704
4705 return 0;
4706}
50b3eb4b 4707EXPORT_SYMBOL_GPL(wl1271_register_hw);
f5fc0f86 4708
3b56dd6a
TP		 4709void wl1271_unregister_hw(struct wl1271 *wl)
4710{
4ae3fa87
JO		 4711 if (wl->state == WL1271_STATE_PLT)
4712 __wl1271_plt_stop(wl);
4713
c2c192ac 4714 unregister_netdevice_notifier(&wl1271_dev_notifier);
3b56dd6a
TP		 4715 ieee80211_unregister_hw(wl->hw);
4716 wl->mac80211_registered = false;
4717
4718}
4719EXPORT_SYMBOL_GPL(wl1271_unregister_hw);
4720
2d5e82b8 4721int wl1271_init_ieee80211(struct wl1271 *wl)
f5fc0f86 4722{
7a55724e
JO		 4723 static const u32 cipher_suites[] = {
4724 WLAN_CIPHER_SUITE_WEP40,
4725 WLAN_CIPHER_SUITE_WEP104,
4726 WLAN_CIPHER_SUITE_TKIP,
4727 WLAN_CIPHER_SUITE_CCMP,
4728 WL1271_CIPHER_SUITE_GEM,
4729 };
4730
1e2b7976
JO		 4731 /* The tx descriptor buffer and the TKIP space. */
4732 wl->hw->extra_tx_headroom = WL1271_TKIP_IV_SPACE +
4733 sizeof(struct wl1271_tx_hw_descr);
f5fc0f86
LC		 4734
4735 /* unit us */
4736 /* FIXME: find a proper value */
4737 wl->hw->channel_change_time = 10000;
50c500ad 4738 wl->hw->max_listen_interval = wl->conf.conn.max_listen_interval;
f5fc0f86
LC		 4739
4740 wl->hw->flags = IEEE80211_HW_SIGNAL_DBM |
03442a33 4741 IEEE80211_HW_BEACON_FILTER |
0a34332f 4742 IEEE80211_HW_SUPPORTS_PS |
4695dc91 4743 IEEE80211_HW_SUPPORTS_UAPSD |
a9af092b 4744 IEEE80211_HW_HAS_RATE_CONTROL |
00236aed 4745 IEEE80211_HW_CONNECTION_MONITOR |
62c0740c 4746 IEEE80211_HW_SUPPORTS_CQM_RSSI |
25eaea30 4747 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
fcd23b63 4748 IEEE80211_HW_SPECTRUM_MGMT |
93f8c8e0
AN		 4749 IEEE80211_HW_AP_LINK_PS |
4750 IEEE80211_HW_AMPDU_AGGREGATION |
4751 IEEE80211_HW_TX_AMPDU_SETUP_IN_HW;
f5fc0f86 4752
7a55724e
JO		 4753 wl->hw->wiphy->cipher_suites = cipher_suites;
4754 wl->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
4755
e0d8bbf0 4756 wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
045c745f
EP		 4757 BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP) |
4758 BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO);
f5fc0f86 4759 wl->hw->wiphy->max_scan_ssids = 1;
221737d2
LC		 4760 wl->hw->wiphy->max_sched_scan_ssids = 16;
4761 wl->hw->wiphy->max_match_sets = 16;
ea559b46
GE		 4762 /*
4763 * Maximum length of elements in scanning probe request templates
4764 * should be the maximum length possible for a template, without
4765 * the IEEE80211 header of the template
4766 */
154037d1 4767 wl->hw->wiphy->max_scan_ie_len = WL1271_CMD_TEMPL_DFLT_SIZE -
ea559b46 4768 sizeof(struct ieee80211_header);
a8aaaf53 4769
c9e79a47
LC		 4770 wl->hw->wiphy->max_sched_scan_ie_len = WL1271_CMD_TEMPL_DFLT_SIZE -
4771 sizeof(struct ieee80211_header);
4772
1ec23f7f
EP		 4773 wl->hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
4774
4a31c11c
LC		 4775 /* make sure all our channels fit in the scanned_ch bitmask */
4776 BUILD_BUG_ON(ARRAY_SIZE(wl1271_channels) +
4777 ARRAY_SIZE(wl1271_channels_5ghz) >
4778 WL1271_MAX_CHANNELS);
a8aaaf53
LC		 4779 /*
4780 * We keep local copies of the band structs because we need to
4781 * modify them on a per-device basis.
4782 */
4783 memcpy(&wl->bands[IEEE80211_BAND_2GHZ], &wl1271_band_2ghz,
4784 sizeof(wl1271_band_2ghz));
4785 memcpy(&wl->bands[IEEE80211_BAND_5GHZ], &wl1271_band_5ghz,
4786 sizeof(wl1271_band_5ghz));
4787
4788 wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
4789 &wl->bands[IEEE80211_BAND_2GHZ];
4790 wl->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
4791 &wl->bands[IEEE80211_BAND_5GHZ];
1ebec3d7 4792
12bd8949 4793 wl->hw->queues = 4;
31627dc5 4794 wl->hw->max_rates = 1;
12bd8949 4795
b7417d93
JO		 4796 wl->hw->wiphy->reg_notifier = wl1271_reg_notify;
4797
8197b711 4798 SET_IEEE80211_DEV(wl->hw, wl1271_wl_to_dev(wl));
f5fc0f86 4799
f84f7d78 4800 wl->hw->sta_data_size = sizeof(struct wl1271_station);
87fbcb0f 4801 wl->hw->vif_data_size = sizeof(struct wl12xx_vif);
f84f7d78 4802
4c9cfa78
LC		 4803 wl->hw->max_rx_aggregation_subframes = 8;
4804
f5fc0f86
LC		 4805 return 0;
4806}
50b3eb4b 4807EXPORT_SYMBOL_GPL(wl1271_init_ieee80211);
f5fc0f86 4808
f5fc0f86 4809#define WL1271_DEFAULT_CHANNEL 0
c332a4b8 4810
2d5e82b8 4811struct ieee80211_hw *wl1271_alloc_hw(void)
f5fc0f86 4812{
f5fc0f86 4813 struct ieee80211_hw *hw;
3b56dd6a 4814 struct platform_device *plat_dev = NULL;
f5fc0f86 4815 struct wl1271 *wl;
a8c0ddb5 4816 int i, j, ret;
1f37cbc9 4817 unsigned int order;
f5fc0f86 4818
f80c2d12
AN		 4819 BUILD_BUG_ON(AP_MAX_LINKS > WL12XX_MAX_LINKS);
4820
f5fc0f86
LC		 4821 hw = ieee80211_alloc_hw(sizeof(*wl), &wl1271_ops);
4822 if (!hw) {
4823 wl1271_error("could not alloc ieee80211_hw");
a1dd8187 4824 ret = -ENOMEM;
3b56dd6a
TP		 4825 goto err_hw_alloc;
4826 }
4827
929ebd30 4828 plat_dev = kmemdup(&wl1271_device, sizeof(wl1271_device), GFP_KERNEL);
3b56dd6a
TP		 4829 if (!plat_dev) {
4830 wl1271_error("could not allocate platform_device");
4831 ret = -ENOMEM;
4832 goto err_plat_alloc;
f5fc0f86
LC		 4833 }
4834
4835 wl = hw->priv;
4836 memset(wl, 0, sizeof(*wl));
4837
01c09162
JO		 4838 INIT_LIST_HEAD(&wl->list);
4839
f5fc0f86 4840 wl->hw = hw;
3b56dd6a 4841 wl->plat_dev = plat_dev;
f5fc0f86 4842
6742f554
JO		 4843 for (i = 0; i < NUM_TX_QUEUES; i++)
4844 skb_queue_head_init(&wl->tx_queue[i]);
f5fc0f86 4845
a8c0ddb5
AN		 4846 for (i = 0; i < NUM_TX_QUEUES; i++)
4847 for (j = 0; j < AP_MAX_LINKS; j++)
4848 skb_queue_head_init(&wl->links[j].tx_queue[i]);
4849
a620865e
IY		 4850 skb_queue_head_init(&wl->deferred_rx_queue);
4851 skb_queue_head_init(&wl->deferred_tx_queue);
4852
37b70a81 4853 INIT_DELAYED_WORK(&wl->elp_work, wl1271_elp_work);
90494a90 4854 INIT_DELAYED_WORK(&wl->pspoll_work, wl1271_pspoll_work);
a620865e 4855 INIT_WORK(&wl->netstack_work, wl1271_netstack_work);
117b38d0
JO		 4856 INIT_WORK(&wl->tx_work, wl1271_tx_work);
4857 INIT_WORK(&wl->recovery_work, wl1271_recovery_work);
4858 INIT_DELAYED_WORK(&wl->scan_complete_work, wl1271_scan_complete_work);
77ddaa10
EP		 4859 INIT_WORK(&wl->rx_streaming_enable_work,
4860 wl1271_rx_streaming_enable_work);
4861 INIT_WORK(&wl->rx_streaming_disable_work,
4862 wl1271_rx_streaming_disable_work);
4863
92ef8960
EP		 4864 wl->freezable_wq = create_freezable_workqueue("wl12xx_wq");
4865 if (!wl->freezable_wq) {
4866 ret = -ENOMEM;
4867 goto err_hw;
4868 }
4869
f5fc0f86 4870 wl->channel = WL1271_DEFAULT_CHANNEL;
60e84c2e 4871 wl->beacon_int = WL1271_DEFAULT_BEACON_INT;
f5fc0f86 4872 wl->default_key = 0;
f5fc0f86 4873 wl->rx_counter = 0;
19ad0715 4874 wl->psm_entry_retry = 0;
f5fc0f86 4875 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
8a5a37a6 4876 wl->band = IEEE80211_BAND_2GHZ;
b771eee5 4877 wl->vif = NULL;
830fb67b 4878 wl->flags = 0;
7fc3a864 4879 wl->sg_enabled = true;
d717fd61 4880 wl->hw_pg_ver = -1;
a8c0ddb5 4881 wl->last_tx_hlid = 0;
b622d992
AN		 4882 wl->ap_ps_map = 0;
4883 wl->ap_fw_ps_map = 0;
606ea9fa 4884 wl->quirks = 0;
341b7cde 4885 wl->platform_quirks = 0;
33c2c06c 4886 wl->sched_scanning = false;
b992c682
OK		 4887 wl->tx_security_seq = 0;
4888 wl->tx_security_last_seq_lsb = 0;
e9eb8cbe 4889 wl->tx_spare_blocks = TX_HW_BLOCK_SPARE_DEFAULT;
f4df1bd5 4890 wl->system_hlid = WL12XX_SYSTEM_HLID;
7f097988 4891 wl->sta_hlid = WL12XX_INVALID_LINK_ID;
04e8079c 4892 wl->dev_hlid = WL12XX_INVALID_LINK_ID;
712e9bf7 4893 wl->session_counter = 0;
e51ae9be
AN		 4894 wl->ap_bcast_hlid = WL12XX_INVALID_LINK_ID;
4895 wl->ap_global_hlid = WL12XX_INVALID_LINK_ID;
da03209e 4896 wl->active_sta_count = 0;
77ddaa10
EP		 4897 setup_timer(&wl->rx_streaming_timer, wl1271_rx_streaming_timer,
4898 (unsigned long) wl);
95dac04f
IY		 4899 wl->fwlog_size = 0;
4900 init_waitqueue_head(&wl->fwlog_waitq);
f5fc0f86 4901
f4df1bd5
EP		 4902 /* The system link is always allocated */
4903 __set_bit(WL12XX_SYSTEM_HLID, wl->links_map);
4904
25eeb9e3 4905 memset(wl->tx_frames_map, 0, sizeof(wl->tx_frames_map));
be7078c2 4906 for (i = 0; i < ACX_TX_DESCRIPTORS; i++)
f5fc0f86
LC		 4907 wl->tx_frames[i] = NULL;
4908
4909 spin_lock_init(&wl->wl_lock);
4910
f5fc0f86
LC		 4911 wl->state = WL1271_STATE_OFF;
4912 mutex_init(&wl->mutex);
4913
c332a4b8
TP		 4914 /* Apply default driver configuration. */
4915 wl1271_conf_init(wl);
af7fbb28
EP		 4916 wl->bitrate_masks[IEEE80211_BAND_2GHZ] = wl->conf.tx.basic_rate;
4917 wl->bitrate_masks[IEEE80211_BAND_5GHZ] = wl->conf.tx.basic_rate_5;
c332a4b8 4918
1f37cbc9
IY		 4919 order = get_order(WL1271_AGGR_BUFFER_SIZE);
4920 wl->aggr_buf = (u8 *)__get_free_pages(GFP_KERNEL, order);
4921 if (!wl->aggr_buf) {
4922 ret = -ENOMEM;
92ef8960 4923 goto err_wq;
1f37cbc9
IY		 4924 }
4925
990f5de7
IY		 4926 wl->dummy_packet = wl12xx_alloc_dummy_packet(wl);
4927 if (!wl->dummy_packet) {
4928 ret = -ENOMEM;
4929 goto err_aggr;
4930 }
4931
95dac04f
IY		 4932 /* Allocate one page for the FW log */
4933 wl->fwlog = (u8 *)get_zeroed_page(GFP_KERNEL);
4934 if (!wl->fwlog) {
4935 ret = -ENOMEM;
4936 goto err_dummy_packet;
4937 }
4938
a1dd8187 4939 /* Register platform device */
3b56dd6a 4940 ret = platform_device_register(wl->plat_dev);
a1dd8187
JO		 4941 if (ret) {
4942 wl1271_error("couldn't register platform device");
95dac04f 4943 goto err_fwlog;
a1dd8187 4944 }
3b56dd6a 4945 dev_set_drvdata(&wl->plat_dev->dev, wl);
a1dd8187 4946
7fc3a864 4947 /* Create sysfs file to control bt coex state */
3b56dd6a 4948 ret = device_create_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
7fc3a864
JO		 4949 if (ret < 0) {
4950 wl1271_error("failed to create sysfs file bt_coex_state");
4951 goto err_platform;
4952 }
a1dd8187 4953
d717fd61
JO		 4954 /* Create sysfs file to get HW PG version */
4955 ret = device_create_file(&wl->plat_dev->dev, &dev_attr_hw_pg_ver);
4956 if (ret < 0) {
4957 wl1271_error("failed to create sysfs file hw_pg_ver");
4958 goto err_bt_coex_state;
4959 }
4960
95dac04f
IY		 4961 /* Create sysfs file for the FW log */
4962 ret = device_create_bin_file(&wl->plat_dev->dev, &fwlog_attr);
4963 if (ret < 0) {
4964 wl1271_error("failed to create sysfs file fwlog");
4965 goto err_hw_pg_ver;
4966 }
4967
c332a4b8 4968 return hw;
a1dd8187 4969
95dac04f
IY		 4970err_hw_pg_ver:
4971 device_remove_file(&wl->plat_dev->dev, &dev_attr_hw_pg_ver);
4972
d717fd61
JO		 4973err_bt_coex_state:
4974 device_remove_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
4975
7fc3a864 4976err_platform:
3b56dd6a 4977 platform_device_unregister(wl->plat_dev);
7fc3a864 4978
95dac04f
IY		 4979err_fwlog:
4980 free_page((unsigned long)wl->fwlog);
4981
990f5de7
IY		 4982err_dummy_packet:
4983 dev_kfree_skb(wl->dummy_packet);
4984
1f37cbc9
IY		 4985err_aggr:
4986 free_pages((unsigned long)wl->aggr_buf, order);
4987
92ef8960
EP		 4988err_wq:
4989 destroy_workqueue(wl->freezable_wq);
4990
a1dd8187 4991err_hw:
3b56dd6a
TP		 4992 wl1271_debugfs_exit(wl);
4993 kfree(plat_dev);
4994
4995err_plat_alloc:
4996 ieee80211_free_hw(hw);
4997
4998err_hw_alloc:
a1dd8187 4999
a1dd8187 5000 return ERR_PTR(ret);
c332a4b8 5001}
50b3eb4b 5002EXPORT_SYMBOL_GPL(wl1271_alloc_hw);
c332a4b8
TP		 5003
5004int wl1271_free_hw(struct wl1271 *wl)
5005{
95dac04f
IY		 5006 /* Unblock any fwlog readers */
5007 mutex_lock(&wl->mutex);
5008 wl->fwlog_size = -1;
5009 wake_up_interruptible_all(&wl->fwlog_waitq);
5010 mutex_unlock(&wl->mutex);
5011
5012 device_remove_bin_file(&wl->plat_dev->dev, &fwlog_attr);
6f07b72a
GK		 5013
5014 device_remove_file(&wl->plat_dev->dev, &dev_attr_hw_pg_ver);
5015
5016 device_remove_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
3b56dd6a 5017 platform_device_unregister(wl->plat_dev);
95dac04f 5018 free_page((unsigned long)wl->fwlog);
990f5de7 5019 dev_kfree_skb(wl->dummy_packet);
1f37cbc9
IY		 5020 free_pages((unsigned long)wl->aggr_buf,
5021 get_order(WL1271_AGGR_BUFFER_SIZE));
3b56dd6a 5022 kfree(wl->plat_dev);
c332a4b8
TP		 5023
5024 wl1271_debugfs_exit(wl);
5025
c332a4b8
TP		 5026 vfree(wl->fw);
5027 wl->fw = NULL;
5028 kfree(wl->nvs);
5029 wl->nvs = NULL;
5030
5031 kfree(wl->fw_status);
5032 kfree(wl->tx_res_if);
92ef8960 5033 destroy_workqueue(wl->freezable_wq);
c332a4b8
TP		 5034
5035 ieee80211_free_hw(wl->hw);
5036
5037 return 0;
5038}
50b3eb4b
TP		 5039EXPORT_SYMBOL_GPL(wl1271_free_hw);
5040
491bbd6b 5041u32 wl12xx_debug_level = DEBUG_NONE;
17c1755c 5042EXPORT_SYMBOL_GPL(wl12xx_debug_level);
491bbd6b 5043module_param_named(debug_level, wl12xx_debug_level, uint, S_IRUSR | S_IWUSR);
17c1755c
EP		 5044MODULE_PARM_DESC(debug_level, "wl12xx debugging level");
5045
95dac04f
IY		 5046module_param_named(fwlog, fwlog_param, charp, 0);
5047MODULE_PARM_DESC(keymap,
5048 "FW logger options: continuous, ondemand, dbgpins or disable");
5049
2a5bff09
EP		 5050module_param(bug_on_recovery, bool, S_IRUSR | S_IWUSR);
5051MODULE_PARM_DESC(bug_on_recovery, "BUG() on fw recovery");
5052
50b3eb4b 5053MODULE_LICENSE("GPL");
b1a48cab 5054MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
50b3eb4b 5055MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
Linux 6.x block layer and io_uring tree(s)