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wl12xx: Add support to RX packets payload alignment
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / net / wireless / wl12xx / main.c
CommitLineData
f5fc0f86
LC		 1/*
2 * This file is part of wl1271
3 *
8bf29b0e 4 * Copyright (C) 2008-2010 Nokia Corporation
f5fc0f86
LC		 5 *
6 * Contact: Luciano Coelho <luciano.coelho@nokia.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 *
22 */
23
24#include <linux/module.h>
f5fc0f86
LC		 25#include <linux/firmware.h>
26#include <linux/delay.h>
f5fc0f86
LC		 27#include <linux/spi/spi.h>
28#include <linux/crc32.h>
29#include <linux/etherdevice.h>
1fba4974 30#include <linux/vmalloc.h>
a1dd8187 31#include <linux/platform_device.h>
5a0e3ad6 32#include <linux/slab.h>
341b7cde 33#include <linux/wl12xx.h>
95dac04f 34#include <linux/sched.h>
f5fc0f86 35
00d20100 36#include "wl12xx.h"
f5fc0f86 37#include "wl12xx_80211.h"
00d20100
SL		 38#include "reg.h"
39#include "io.h"
40#include "event.h"
41#include "tx.h"
42#include "rx.h"
43#include "ps.h"
44#include "init.h"
45#include "debugfs.h"
46#include "cmd.h"
47#include "boot.h"
48#include "testmode.h"
49#include "scan.h"
f5fc0f86 50
9ccd9217
JO		 51#define WL1271_BOOT_RETRIES 3
52
8a08048a
JO		 53static struct conf_drv_settings default_conf = {
54 .sg = {
801f870b 55 .sta_params = {
1b00f546
JO		 56 [CONF_SG_BT_PER_THRESHOLD] = 7500,
57 [CONF_SG_HV3_MAX_OVERRIDE] = 0,
58 [CONF_SG_BT_NFS_SAMPLE_INTERVAL] = 400,
d9482e2b 59 [CONF_SG_BT_LOAD_RATIO] = 200,
8d2ef7bd 60 [CONF_SG_AUTO_PS_MODE] = 1,
1b00f546
JO		 61 [CONF_SG_AUTO_SCAN_PROBE_REQ] = 170,
62 [CONF_SG_ACTIVE_SCAN_DURATION_FACTOR_HV3] = 50,
63 [CONF_SG_ANTENNA_CONFIGURATION] = 0,
64 [CONF_SG_BEACON_MISS_PERCENT] = 60,
65 [CONF_SG_RATE_ADAPT_THRESH] = 12,
66 [CONF_SG_RATE_ADAPT_SNR] = 0,
67 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MIN_BR] = 10,
68 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MAX_BR] = 30,
69 [CONF_SG_WLAN_PS_MAX_BT_ACL_MASTER_BR] = 8,
70 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MIN_BR] = 20,
71 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MAX_BR] = 50,
72 /* Note: with UPSD, this should be 4 */
73 [CONF_SG_WLAN_PS_MAX_BT_ACL_SLAVE_BR] = 8,
74 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MIN_EDR] = 7,
75 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MAX_EDR] = 25,
76 [CONF_SG_WLAN_PS_MAX_BT_ACL_MASTER_EDR] = 20,
77 /* Note: with UPDS, this should be 15 */
78 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MIN_EDR] = 8,
79 /* Note: with UPDS, this should be 50 */
80 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MAX_EDR] = 40,
81 /* Note: with UPDS, this should be 10 */
82 [CONF_SG_WLAN_PS_MAX_BT_ACL_SLAVE_EDR] = 20,
83 [CONF_SG_RXT] = 1200,
84 [CONF_SG_TXT] = 1000,
85 [CONF_SG_ADAPTIVE_RXT_TXT] = 1,
86 [CONF_SG_PS_POLL_TIMEOUT] = 10,
87 [CONF_SG_UPSD_TIMEOUT] = 10,
88 [CONF_SG_WLAN_ACTIVE_BT_ACL_MASTER_MIN_EDR] = 7,
89 [CONF_SG_WLAN_ACTIVE_BT_ACL_MASTER_MAX_EDR] = 15,
90 [CONF_SG_WLAN_ACTIVE_MAX_BT_ACL_MASTER_EDR] = 15,
91 [CONF_SG_WLAN_ACTIVE_BT_ACL_SLAVE_MIN_EDR] = 8,
92 [CONF_SG_WLAN_ACTIVE_BT_ACL_SLAVE_MAX_EDR] = 20,
93 [CONF_SG_WLAN_ACTIVE_MAX_BT_ACL_SLAVE_EDR] = 15,
94 [CONF_SG_WLAN_ACTIVE_BT_ACL_MIN_BR] = 20,
95 [CONF_SG_WLAN_ACTIVE_BT_ACL_MAX_BR] = 50,
96 [CONF_SG_WLAN_ACTIVE_MAX_BT_ACL_BR] = 10,
97 [CONF_SG_PASSIVE_SCAN_DURATION_FACTOR_HV3] = 200,
98 [CONF_SG_PASSIVE_SCAN_DURATION_FACTOR_A2DP] = 800,
99 [CONF_SG_PASSIVE_SCAN_A2DP_BT_TIME] = 75,
100 [CONF_SG_PASSIVE_SCAN_A2DP_WLAN_TIME] = 15,
101 [CONF_SG_HV3_MAX_SERVED] = 6,
102 [CONF_SG_DHCP_TIME] = 5000,
103 [CONF_SG_ACTIVE_SCAN_DURATION_FACTOR_A2DP] = 100,
104 },
801f870b
AN		 105 .ap_params = {
106 [CONF_SG_BT_PER_THRESHOLD] = 7500,
107 [CONF_SG_HV3_MAX_OVERRIDE] = 0,
108 [CONF_SG_BT_NFS_SAMPLE_INTERVAL] = 400,
109 [CONF_SG_BT_LOAD_RATIO] = 50,
110 [CONF_SG_AUTO_PS_MODE] = 1,
111 [CONF_SG_AUTO_SCAN_PROBE_REQ] = 170,
112 [CONF_SG_ACTIVE_SCAN_DURATION_FACTOR_HV3] = 50,
113 [CONF_SG_ANTENNA_CONFIGURATION] = 0,
114 [CONF_SG_BEACON_MISS_PERCENT] = 60,
115 [CONF_SG_RATE_ADAPT_THRESH] = 64,
116 [CONF_SG_RATE_ADAPT_SNR] = 1,
117 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MIN_BR] = 10,
118 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MAX_BR] = 25,
119 [CONF_SG_WLAN_PS_MAX_BT_ACL_MASTER_BR] = 25,
120 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MIN_BR] = 20,
121 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MAX_BR] = 25,
122 [CONF_SG_WLAN_PS_MAX_BT_ACL_SLAVE_BR] = 25,
123 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MIN_EDR] = 7,
124 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MAX_EDR] = 25,
125 [CONF_SG_WLAN_PS_MAX_BT_ACL_MASTER_EDR] = 25,
126 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MIN_EDR] = 8,
127 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MAX_EDR] = 25,
128 [CONF_SG_WLAN_PS_MAX_BT_ACL_SLAVE_EDR] = 25,
129 [CONF_SG_RXT] = 1200,
130 [CONF_SG_TXT] = 1000,
131 [CONF_SG_ADAPTIVE_RXT_TXT] = 1,
132 [CONF_SG_PS_POLL_TIMEOUT] = 10,
133 [CONF_SG_UPSD_TIMEOUT] = 10,
134 [CONF_SG_WLAN_ACTIVE_BT_ACL_MASTER_MIN_EDR] = 7,
135 [CONF_SG_WLAN_ACTIVE_BT_ACL_MASTER_MAX_EDR] = 15,
136 [CONF_SG_WLAN_ACTIVE_MAX_BT_ACL_MASTER_EDR] = 15,
137 [CONF_SG_WLAN_ACTIVE_BT_ACL_SLAVE_MIN_EDR] = 8,
138 [CONF_SG_WLAN_ACTIVE_BT_ACL_SLAVE_MAX_EDR] = 20,
139 [CONF_SG_WLAN_ACTIVE_MAX_BT_ACL_SLAVE_EDR] = 15,
140 [CONF_SG_WLAN_ACTIVE_BT_ACL_MIN_BR] = 20,
141 [CONF_SG_WLAN_ACTIVE_BT_ACL_MAX_BR] = 50,
142 [CONF_SG_WLAN_ACTIVE_MAX_BT_ACL_BR] = 10,
143 [CONF_SG_PASSIVE_SCAN_DURATION_FACTOR_HV3] = 200,
144 [CONF_SG_PASSIVE_SCAN_DURATION_FACTOR_A2DP] = 800,
145 [CONF_SG_PASSIVE_SCAN_A2DP_BT_TIME] = 75,
146 [CONF_SG_PASSIVE_SCAN_A2DP_WLAN_TIME] = 15,
147 [CONF_SG_HV3_MAX_SERVED] = 6,
148 [CONF_SG_DHCP_TIME] = 5000,
149 [CONF_SG_ACTIVE_SCAN_DURATION_FACTOR_A2DP] = 100,
150 [CONF_SG_TEMP_PARAM_1] = 0,
151 [CONF_SG_TEMP_PARAM_2] = 0,
152 [CONF_SG_TEMP_PARAM_3] = 0,
153 [CONF_SG_TEMP_PARAM_4] = 0,
154 [CONF_SG_TEMP_PARAM_5] = 0,
155 [CONF_SG_AP_BEACON_MISS_TX] = 3,
156 [CONF_SG_RX_WINDOW_LENGTH] = 6,
157 [CONF_SG_AP_CONNECTION_PROTECTION_TIME] = 50,
158 [CONF_SG_TEMP_PARAM_6] = 1,
159 },
1b00f546 160 .state = CONF_SG_PROTECTIVE,
8a08048a
JO		 161 },
162 .rx = {
163 .rx_msdu_life_time = 512000,
164 .packet_detection_threshold = 0,
165 .ps_poll_timeout = 15,
166 .upsd_timeout = 15,
5f704d18 167 .rts_threshold = IEEE80211_MAX_RTS_THRESHOLD,
3ed8f2c6
LC		 168 .rx_cca_threshold = 0,
169 .irq_blk_threshold = 0xFFFF,
170 .irq_pkt_threshold = 0,
171 .irq_timeout = 600,
8a08048a
JO		 172 .queue_type = CONF_RX_QUEUE_TYPE_LOW_PRIORITY,
173 },
174 .tx = {
175 .tx_energy_detection = 0,
1e05a818 176 .sta_rc_conf = {
ebba60c6 177 .enabled_rates = 0,
8a08048a
JO		 178 .short_retry_limit = 10,
179 .long_retry_limit = 10,
1e05a818 180 .aflags = 0,
45b531a8 181 },
8a08048a
JO		 182 .ac_conf_count = 4,
183 .ac_conf = {
9987a9da 184 [CONF_TX_AC_BE] = {
8a08048a
JO		 185 .ac = CONF_TX_AC_BE,
186 .cw_min = 15,
187 .cw_max = 63,
188 .aifsn = 3,
189 .tx_op_limit = 0,
45b531a8 190 },
9987a9da 191 [CONF_TX_AC_BK] = {
8a08048a
JO		 192 .ac = CONF_TX_AC_BK,
193 .cw_min = 15,
194 .cw_max = 63,
195 .aifsn = 7,
196 .tx_op_limit = 0,
45b531a8 197 },
9987a9da 198 [CONF_TX_AC_VI] = {
8a08048a
JO		 199 .ac = CONF_TX_AC_VI,
200 .cw_min = 15,
201 .cw_max = 63,
202 .aifsn = CONF_TX_AIFS_PIFS,
203 .tx_op_limit = 3008,
204 },
9987a9da 205 [CONF_TX_AC_VO] = {
8a08048a
JO		 206 .ac = CONF_TX_AC_VO,
207 .cw_min = 15,
208 .cw_max = 63,
209 .aifsn = CONF_TX_AIFS_PIFS,
210 .tx_op_limit = 1504,
45b531a8 211 },
51f2be24 212 },
3618f30f
AN		 213 .max_tx_retries = 100,
214 .ap_aging_period = 300,
9987a9da 215 .tid_conf_count = 4,
8a08048a 216 .tid_conf = {
9987a9da
JO		 217 [CONF_TX_AC_BE] = {
218 .queue_id = CONF_TX_AC_BE,
219 .channel_type = CONF_CHANNEL_TYPE_EDCF,
8a08048a
JO		 220 .tsid = CONF_TX_AC_BE,
221 .ps_scheme = CONF_PS_SCHEME_LEGACY,
222 .ack_policy = CONF_ACK_POLICY_LEGACY,
223 .apsd_conf = {0, 0},
51f2be24 224 },
9987a9da
JO		 225 [CONF_TX_AC_BK] = {
226 .queue_id = CONF_TX_AC_BK,
227 .channel_type = CONF_CHANNEL_TYPE_EDCF,
228 .tsid = CONF_TX_AC_BK,
8a08048a
JO		 229 .ps_scheme = CONF_PS_SCHEME_LEGACY,
230 .ack_policy = CONF_ACK_POLICY_LEGACY,
231 .apsd_conf = {0, 0},
232 },
9987a9da
JO		 233 [CONF_TX_AC_VI] = {
234 .queue_id = CONF_TX_AC_VI,
235 .channel_type = CONF_CHANNEL_TYPE_EDCF,
236 .tsid = CONF_TX_AC_VI,
8a08048a
JO		 237 .ps_scheme = CONF_PS_SCHEME_LEGACY,
238 .ack_policy = CONF_ACK_POLICY_LEGACY,
239 .apsd_conf = {0, 0},
240 },
9987a9da
JO		 241 [CONF_TX_AC_VO] = {
242 .queue_id = CONF_TX_AC_VO,
243 .channel_type = CONF_CHANNEL_TYPE_EDCF,
244 .tsid = CONF_TX_AC_VO,
8a08048a
JO		 245 .ps_scheme = CONF_PS_SCHEME_LEGACY,
246 .ack_policy = CONF_ACK_POLICY_LEGACY,
247 .apsd_conf = {0, 0},
248 },
8a08048a
JO		 249 },
250 .frag_threshold = IEEE80211_MAX_FRAG_THRESHOLD,
3ed8f2c6 251 .tx_compl_timeout = 700,
ebba60c6
JO		 252 .tx_compl_threshold = 4,
253 .basic_rate = CONF_HW_BIT_RATE_1MBPS,
254 .basic_rate_5 = CONF_HW_BIT_RATE_6MBPS,
1e05a818
AN		 255 .tmpl_short_retry_limit = 10,
256 .tmpl_long_retry_limit = 10,
8a08048a
JO		 257 },
258 .conn = {
259 .wake_up_event = CONF_WAKE_UP_EVENT_DTIM,
50c500ad 260 .listen_interval = 1,
8a08048a 261 .bcn_filt_mode = CONF_BCN_FILT_MODE_ENABLED,
bc76b940 262 .bcn_filt_ie_count = 2,
8a08048a
JO		 263 .bcn_filt_ie = {
264 [0] = {
265 .ie = WLAN_EID_CHANNEL_SWITCH,
266 .rule = CONF_BCN_RULE_PASS_ON_APPEARANCE,
bc76b940
SL		 267 },
268 [1] = {
269 .ie = WLAN_EID_HT_INFORMATION,
270 .rule = CONF_BCN_RULE_PASS_ON_CHANGE,
271 },
47fab7d5 272 },
3ed8f2c6 273 .synch_fail_thold = 10,
8a08048a
JO		 274 .bss_lose_timeout = 100,
275 .beacon_rx_timeout = 10000,
276 .broadcast_timeout = 20000,
277 .rx_broadcast_in_ps = 1,
90494a90
JO		 278 .ps_poll_threshold = 10,
279 .ps_poll_recovery_period = 700,
11f70f97 280 .bet_enable = CONF_BET_MODE_ENABLE,
958b20e0 281 .bet_max_consecutive = 50,
8eab7b47 282 .psm_entry_retries = 5,
2370841b 283 .psm_exit_retries = 16,
8eab7b47
JO		 284 .psm_entry_nullfunc_retries = 3,
285 .psm_entry_hangover_period = 1,
50c500ad
JO		 286 .keep_alive_interval = 55000,
287 .max_listen_interval = 20,
8a08048a 288 },
6e92b416
LC		 289 .itrim = {
290 .enable = false,
291 .timeout = 50000,
38ad2d87
JO		 292 },
293 .pm_config = {
294 .host_clk_settling_time = 5000,
295 .host_fast_wakeup_support = false
00236aed
JO		 296 },
297 .roam_trigger = {
00236aed
JO		 298 .trigger_pacing = 1,
299 .avg_weight_rssi_beacon = 20,
300 .avg_weight_rssi_data = 10,
301 .avg_weight_snr_beacon = 20,
4b7fac77 302 .avg_weight_snr_data = 10,
bea39d6a
JO		 303 },
304 .scan = {
305 .min_dwell_time_active = 7500,
306 .max_dwell_time_active = 30000,
ea45b2cb
JO		 307 .min_dwell_time_passive = 100000,
308 .max_dwell_time_passive = 100000,
bea39d6a
JO		 309 .num_probe_reqs = 2,
310 },
3a9d60e5
LC		 311 .sched_scan = {
312 /* sched_scan requires dwell times in TU instead of TU/1000 */
313 .min_dwell_time_active = 8,
314 .max_dwell_time_active = 30,
315 .dwell_time_passive = 100,
50a66d7f 316 .dwell_time_dfs = 150,
3a9d60e5
LC		 317 .num_probe_reqs = 2,
318 .rssi_threshold = -90,
319 .snr_threshold = 0,
320 },
644a4860
JO		 321 .rf = {
322 .tx_per_channel_power_compensation_2 = {
323 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
324 },
325 .tx_per_channel_power_compensation_5 = {
326 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
327 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
328 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
329 },
330 },
4b7fac77
LS		 331 .ht = {
332 .tx_ba_win_size = 64,
333 .inactivity_timeout = 10000,
334 },
13b107dd 335 .mem_wl127x = {
fe5ef090
EP		 336 .num_stations = 1,
337 .ssid_profiles = 1,
338 .rx_block_num = 70,
339 .tx_min_block_num = 40,
4cf557fc 340 .dynamic_memory = 1,
b16d4b68 341 .min_req_tx_blocks = 100,
c8bde243
EP		 342 .min_req_rx_blocks = 22,
343 .tx_min = 27,
13b107dd
SL		 344 },
345 .mem_wl128x = {
346 .num_stations = 1,
347 .ssid_profiles = 1,
348 .rx_block_num = 40,
349 .tx_min_block_num = 40,
350 .dynamic_memory = 1,
351 .min_req_tx_blocks = 45,
352 .min_req_rx_blocks = 22,
353 .tx_min = 27,
354 },
ff86843d
SL		 355 .fm_coex = {
356 .enable = true,
357 .swallow_period = 5,
358 .n_divider_fref_set_1 = 0xff, /* default */
359 .n_divider_fref_set_2 = 12,
360 .m_divider_fref_set_1 = 148,
361 .m_divider_fref_set_2 = 0xffff, /* default */
362 .coex_pll_stabilization_time = 0xffffffff, /* default */
363 .ldo_stabilization_time = 0xffff, /* default */
364 .fm_disturbed_band_margin = 0xff, /* default */
365 .swallow_clk_diff = 0xff, /* default */
366 },
f84673d5
EP		 367 .rx_streaming = {
368 .duration = 150,
369 .queues = 0x1,
370 .interval = 20,
77ddaa10 371 .always = 0,
f84673d5 372 },
95dac04f
IY		 373 .fwlog = {
374 .mode = WL12XX_FWLOG_ON_DEMAND,
375 .mem_blocks = 2,
376 .severity = 0,
377 .timestamp = WL12XX_FWLOG_TIMESTAMP_DISABLED,
378 .output = WL12XX_FWLOG_OUTPUT_HOST,
379 .threshold = 0,
380 },
afb7d3cd 381 .hci_io_ds = HCI_IO_DS_6MA,
8a08048a
JO		 382};
383
95dac04f
IY		 384static char *fwlog_param;
385
7dece1c8
AN		 386static void __wl1271_op_remove_interface(struct wl1271 *wl,
387 bool reset_tx_queues);
7f179b46 388static void wl1271_free_ap_keys(struct wl1271 *wl);
52b0e7a6
JO		 389
390
a1dd8187
JO		 391static void wl1271_device_release(struct device *dev)
392{
393
394}
395
396static struct platform_device wl1271_device = {
397 .name = "wl1271",
398 .id = -1,
399
400 /* device model insists to have a release function */
401 .dev = {
402 .release = wl1271_device_release,
403 },
404};
405
f9f774c1 406static DEFINE_MUTEX(wl_list_mutex);
01c09162
JO		 407static LIST_HEAD(wl_list);
408
ef4b29e9
EP		 409static int wl1271_check_operstate(struct wl1271 *wl, unsigned char operstate)
410{
411 int ret;
412 if (operstate != IF_OPER_UP)
413 return 0;
414
415 if (test_and_set_bit(WL1271_FLAG_STA_STATE_SENT, &wl->flags))
416 return 0;
417
418 ret = wl1271_cmd_set_sta_state(wl);
419 if (ret < 0)
420 return ret;
421
422 wl1271_info("Association completed.");
423 return 0;
424}
c2c192ac
JO		 425static int wl1271_dev_notify(struct notifier_block *me, unsigned long what,
426 void *arg)
427{
428 struct net_device *dev = arg;
429 struct wireless_dev *wdev;
430 struct wiphy *wiphy;
431 struct ieee80211_hw *hw;
432 struct wl1271 *wl;
433 struct wl1271 *wl_temp;
434 int ret = 0;
435
436 /* Check that this notification is for us. */
437 if (what != NETDEV_CHANGE)
438 return NOTIFY_DONE;
439
440 wdev = dev->ieee80211_ptr;
441 if (wdev == NULL)
442 return NOTIFY_DONE;
443
444 wiphy = wdev->wiphy;
445 if (wiphy == NULL)
446 return NOTIFY_DONE;
447
448 hw = wiphy_priv(wiphy);
449 if (hw == NULL)
450 return NOTIFY_DONE;
451
452 wl_temp = hw->priv;
f9f774c1 453 mutex_lock(&wl_list_mutex);
c2c192ac
JO		 454 list_for_each_entry(wl, &wl_list, list) {
455 if (wl == wl_temp)
456 break;
457 }
f9f774c1 458 mutex_unlock(&wl_list_mutex);
c2c192ac
JO		 459 if (wl != wl_temp)
460 return NOTIFY_DONE;
461
462 mutex_lock(&wl->mutex);
463
464 if (wl->state == WL1271_STATE_OFF)
465 goto out;
466
467 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
468 goto out;
469
a620865e 470 ret = wl1271_ps_elp_wakeup(wl);
c2c192ac
JO		 471 if (ret < 0)
472 goto out;
473
ef4b29e9 474 wl1271_check_operstate(wl, dev->operstate);
c2c192ac
JO		 475
476 wl1271_ps_elp_sleep(wl);
477
478out:
479 mutex_unlock(&wl->mutex);
480
481 return NOTIFY_OK;
482}
483
b7417d93 484static int wl1271_reg_notify(struct wiphy *wiphy,
573c67cf
LC		 485 struct regulatory_request *request)
486{
b7417d93
JO		 487 struct ieee80211_supported_band *band;
488 struct ieee80211_channel *ch;
489 int i;
490
491 band = wiphy->bands[IEEE80211_BAND_5GHZ];
492 for (i = 0; i < band->n_channels; i++) {
493 ch = &band->channels[i];
494 if (ch->flags & IEEE80211_CHAN_DISABLED)
495 continue;
496
497 if (ch->flags & IEEE80211_CHAN_RADAR)
498 ch->flags |= IEEE80211_CHAN_NO_IBSS |
499 IEEE80211_CHAN_PASSIVE_SCAN;
500
501 }
502
503 return 0;
504}
505
77ddaa10
EP		 506static int wl1271_set_rx_streaming(struct wl1271 *wl, bool enable)
507{
508 int ret = 0;
509
510 /* we should hold wl->mutex */
511 ret = wl1271_acx_ps_rx_streaming(wl, enable);
512 if (ret < 0)
513 goto out;
514
515 if (enable)
516 set_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags);
517 else
518 clear_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags);
519out:
520 return ret;
521}
522
523/*
524 * this function is being called when the rx_streaming interval
525 * has beed changed or rx_streaming should be disabled
526 */
527int wl1271_recalc_rx_streaming(struct wl1271 *wl)
528{
529 int ret = 0;
530 int period = wl->conf.rx_streaming.interval;
531
532 /* don't reconfigure if rx_streaming is disabled */
533 if (!test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags))
534 goto out;
535
536 /* reconfigure/disable according to new streaming_period */
537 if (period &&
538 test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags) &&
539 (wl->conf.rx_streaming.always ||
540 test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags)))
541 ret = wl1271_set_rx_streaming(wl, true);
542 else {
543 ret = wl1271_set_rx_streaming(wl, false);
544 /* don't cancel_work_sync since we might deadlock */
545 del_timer_sync(&wl->rx_streaming_timer);
546 }
547out:
548 return ret;
549}
550
551static void wl1271_rx_streaming_enable_work(struct work_struct *work)
552{
553 int ret;
554 struct wl1271 *wl =
555 container_of(work, struct wl1271, rx_streaming_enable_work);
556
557 mutex_lock(&wl->mutex);
558
559 if (test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags) ||
560 !test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags) ||
561 (!wl->conf.rx_streaming.always &&
562 !test_bit(WL1271_FLAG_SOFT_GEMINI, &wl->flags)))
563 goto out;
564
565 if (!wl->conf.rx_streaming.interval)
566 goto out;
567
568 ret = wl1271_ps_elp_wakeup(wl);
569 if (ret < 0)
570 goto out;
571
572 ret = wl1271_set_rx_streaming(wl, true);
573 if (ret < 0)
574 goto out_sleep;
575
576 /* stop it after some time of inactivity */
577 mod_timer(&wl->rx_streaming_timer,
578 jiffies + msecs_to_jiffies(wl->conf.rx_streaming.duration));
579
580out_sleep:
581 wl1271_ps_elp_sleep(wl);
582out:
583 mutex_unlock(&wl->mutex);
584}
585
586static void wl1271_rx_streaming_disable_work(struct work_struct *work)
587{
588 int ret;
589 struct wl1271 *wl =
590 container_of(work, struct wl1271, rx_streaming_disable_work);
591
592 mutex_lock(&wl->mutex);
593
594 if (!test_bit(WL1271_FLAG_RX_STREAMING_STARTED, &wl->flags))
595 goto out;
596
597 ret = wl1271_ps_elp_wakeup(wl);
598 if (ret < 0)
599 goto out;
600
601 ret = wl1271_set_rx_streaming(wl, false);
602 if (ret)
603 goto out_sleep;
604
605out_sleep:
606 wl1271_ps_elp_sleep(wl);
607out:
608 mutex_unlock(&wl->mutex);
609}
610
611static void wl1271_rx_streaming_timer(unsigned long data)
612{
613 struct wl1271 *wl = (struct wl1271 *)data;
614 ieee80211_queue_work(wl->hw, &wl->rx_streaming_disable_work);
615}
616
8a08048a
JO		 617static void wl1271_conf_init(struct wl1271 *wl)
618{
2b60100b
JO		 619
620 /*
621 * This function applies the default configuration to the driver. This
622 * function is invoked upon driver load (spi probe.)
623 *
624 * The configuration is stored in a run-time structure in order to
625 * facilitate for run-time adjustment of any of the parameters. Making
626 * changes to the configuration structure will apply the new values on
627 * the next interface up (wl1271_op_start.)
628 */
629
630 /* apply driver default configuration */
8a08048a 631 memcpy(&wl->conf, &default_conf, sizeof(default_conf));
2b60100b 632
95dac04f
IY		 633 /* Adjust settings according to optional module parameters */
634 if (fwlog_param) {
635 if (!strcmp(fwlog_param, "continuous")) {
636 wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS;
637 } else if (!strcmp(fwlog_param, "ondemand")) {
638 wl->conf.fwlog.mode = WL12XX_FWLOG_ON_DEMAND;
639 } else if (!strcmp(fwlog_param, "dbgpins")) {
640 wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS;
641 wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_DBG_PINS;
642 } else if (!strcmp(fwlog_param, "disable")) {
643 wl->conf.fwlog.mem_blocks = 0;
644 wl->conf.fwlog.output = WL12XX_FWLOG_OUTPUT_NONE;
645 } else {
646 wl1271_error("Unknown fwlog parameter %s", fwlog_param);
647 }
648 }
649}
2b60100b 650
f5fc0f86
LC		 651static int wl1271_plt_init(struct wl1271 *wl)
652{
12419cce
LC		 653 struct conf_tx_ac_category *conf_ac;
654 struct conf_tx_tid *conf_tid;
655 int ret, i;
f5fc0f86 656
49d750ca
SL		 657 if (wl->chip.id == CHIP_ID_1283_PG20)
658 ret = wl128x_cmd_general_parms(wl);
659 else
660 ret = wl1271_cmd_general_parms(wl);
4a90406b 661 if (ret < 0)
cc7defa3
LC		 662 return ret;
663
49d750ca
SL		 664 if (wl->chip.id == CHIP_ID_1283_PG20)
665 ret = wl128x_cmd_radio_parms(wl);
666 else
667 ret = wl1271_cmd_radio_parms(wl);
4a90406b 668 if (ret < 0)
cc7defa3
LC		 669 return ret;
670
49d750ca
SL		 671 if (wl->chip.id != CHIP_ID_1283_PG20) {
672 ret = wl1271_cmd_ext_radio_parms(wl);
673 if (ret < 0)
674 return ret;
675 }
644a4860
JO		 676 if (ret < 0)
677 return ret;
678
48a61477
SL		 679 /* Chip-specific initializations */
680 ret = wl1271_chip_specific_init(wl);
681 if (ret < 0)
682 return ret;
683
e0fe371b 684 ret = wl1271_sta_init_templates_config(wl);
12419cce
LC		 685 if (ret < 0)
686 return ret;
687
f5fc0f86
LC		 688 ret = wl1271_acx_init_mem_config(wl);
689 if (ret < 0)
690 return ret;
691
12419cce
LC		 692 /* PHY layer config */
693 ret = wl1271_init_phy_config(wl);
694 if (ret < 0)
695 goto out_free_memmap;
696
697 ret = wl1271_acx_dco_itrim_params(wl);
698 if (ret < 0)
699 goto out_free_memmap;
700
701 /* Initialize connection monitoring thresholds */
6ccbb92e 702 ret = wl1271_acx_conn_monit_params(wl, false);
12419cce
LC		 703 if (ret < 0)
704 goto out_free_memmap;
705
706 /* Bluetooth WLAN coexistence */
707 ret = wl1271_init_pta(wl);
708 if (ret < 0)
709 goto out_free_memmap;
710
ff86843d
SL		 711 /* FM WLAN coexistence */
712 ret = wl1271_acx_fm_coex(wl);
713 if (ret < 0)
714 goto out_free_memmap;
715
12419cce
LC		 716 /* Energy detection */
717 ret = wl1271_init_energy_detection(wl);
718 if (ret < 0)
719 goto out_free_memmap;
720
1ec610eb
GK		 721 ret = wl1271_acx_sta_mem_cfg(wl);
722 if (ret < 0)
723 goto out_free_memmap;
724
12419cce 725 /* Default fragmentation threshold */
68d069c4 726 ret = wl1271_acx_frag_threshold(wl, wl->conf.tx.frag_threshold);
12419cce
LC		 727 if (ret < 0)
728 goto out_free_memmap;
729
9987a9da
JO		 730 /* Default TID/AC configuration */
731 BUG_ON(wl->conf.tx.tid_conf_count != wl->conf.tx.ac_conf_count);
12419cce 732 for (i = 0; i < wl->conf.tx.tid_conf_count; i++) {
9987a9da
JO		 733 conf_ac = &wl->conf.tx.ac_conf[i];
734 ret = wl1271_acx_ac_cfg(wl, conf_ac->ac, conf_ac->cw_min,
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
LC		 740 conf_tid = &wl->conf.tx.tid_conf[i];
741 ret = wl1271_acx_tid_cfg(wl, conf_tid->queue_id,
742 conf_tid->channel_type,
743 conf_tid->tsid,
744 conf_tid->ps_scheme,
745 conf_tid->ack_policy,
746 conf_tid->apsd_conf[0],
747 conf_tid->apsd_conf[1]);
748 if (ret < 0)
749 goto out_free_memmap;
750 }
751
12419cce 752 /* Enable data path */
94210897 753 ret = wl1271_cmd_data_path(wl, 1);
f5fc0f86 754 if (ret < 0)
12419cce
LC		 755 goto out_free_memmap;
756
757 /* Configure for CAM power saving (ie. always active) */
758 ret = wl1271_acx_sleep_auth(wl, WL1271_PSM_CAM);
759 if (ret < 0)
760 goto out_free_memmap;
761
762 /* configure PM */
763 ret = wl1271_acx_pm_config(wl);
764 if (ret < 0)
765 goto out_free_memmap;
f5fc0f86
LC		 766
767 return 0;
12419cce
LC		 768
769 out_free_memmap:
770 kfree(wl->target_mem_map);
771 wl->target_mem_map = NULL;
772
773 return ret;
f5fc0f86
LC		 774}
775
b622d992
AN		 776static void wl1271_irq_ps_regulate_link(struct wl1271 *wl, u8 hlid, u8 tx_blks)
777{
778 bool fw_ps;
779
780 /* only regulate station links */
781 if (hlid < WL1271_AP_STA_HLID_START)
782 return;
783
784 fw_ps = test_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
785
786 /*
787 * Wake up from high level PS if the STA is asleep with too little
788 * blocks in FW or if the STA is awake.
789 */
790 if (!fw_ps || tx_blks < WL1271_PS_STA_MAX_BLOCKS)
791 wl1271_ps_link_end(wl, hlid);
792
793 /* Start high-level PS if the STA is asleep with enough blocks in FW */
794 else if (fw_ps && tx_blks >= WL1271_PS_STA_MAX_BLOCKS)
795 wl1271_ps_link_start(wl, hlid, true);
796}
797
798static void wl1271_irq_update_links_status(struct wl1271 *wl,
799 struct wl1271_fw_ap_status *status)
800{
801 u32 cur_fw_ps_map;
802 u8 hlid;
803
804 cur_fw_ps_map = le32_to_cpu(status->link_ps_bitmap);
805 if (wl->ap_fw_ps_map != cur_fw_ps_map) {
806 wl1271_debug(DEBUG_PSM,
807 "link ps prev 0x%x cur 0x%x changed 0x%x",
808 wl->ap_fw_ps_map, cur_fw_ps_map,
809 wl->ap_fw_ps_map ^ cur_fw_ps_map);
810
811 wl->ap_fw_ps_map = cur_fw_ps_map;
812 }
813
814 for (hlid = WL1271_AP_STA_HLID_START; hlid < AP_MAX_LINKS; hlid++) {
815 u8 cnt = status->tx_lnk_free_blks[hlid] -
816 wl->links[hlid].prev_freed_blks;
817
818 wl->links[hlid].prev_freed_blks =
819 status->tx_lnk_free_blks[hlid];
820 wl->links[hlid].allocated_blks -= cnt;
821
822 wl1271_irq_ps_regulate_link(wl, hlid,
823 wl->links[hlid].allocated_blks);
824 }
825}
826
9e374a37
AN		 827static u32 wl1271_tx_allocated_blocks(struct wl1271 *wl)
828{
829 int i;
830 u32 total_alloc_blocks = 0;
831
832 for (i = 0; i < NUM_TX_QUEUES; i++)
833 total_alloc_blocks += wl->tx_allocated_blocks[i];
834
835 return total_alloc_blocks;
836}
837
c15f63bf 838static void wl1271_fw_status(struct wl1271 *wl,
c8bde243 839 struct wl1271_fw_full_status *full_status)
f5fc0f86 840{
c8bde243 841 struct wl1271_fw_common_status *status = &full_status->common;
ac5e1e39 842 struct timespec ts;
13b107dd 843 u32 old_tx_blk_count = wl->tx_blocks_available;
9e374a37 844 u32 freed_blocks = 0, ac_freed_blocks;
f5fc0f86
LC		 845 int i;
846
13b107dd 847 if (wl->bss_type == BSS_TYPE_AP_BSS) {
c8bde243
EP		 848 wl1271_raw_read(wl, FW_STATUS_ADDR, status,
849 sizeof(struct wl1271_fw_ap_status), false);
13b107dd 850 } else {
c8bde243
EP		 851 wl1271_raw_read(wl, FW_STATUS_ADDR, status,
852 sizeof(struct wl1271_fw_sta_status), false);
13b107dd
SL		 853 }
854
f5fc0f86
LC		 855 wl1271_debug(DEBUG_IRQ, "intr: 0x%x (fw_rx_counter = %d, "
856 "drv_rx_counter = %d, tx_results_counter = %d)",
857 status->intr,
858 status->fw_rx_counter,
859 status->drv_rx_counter,
860 status->tx_results_counter);
861
862 /* update number of available TX blocks */
863 for (i = 0; i < NUM_TX_QUEUES; i++) {
9e374a37
AN		 864 ac_freed_blocks = le32_to_cpu(status->tx_released_blks[i]) -
865 wl->tx_blocks_freed[i];
866 freed_blocks += ac_freed_blocks;
867
868 wl->tx_allocated_blocks[i] -= ac_freed_blocks;
d0f63b20
LC		 869
870 wl->tx_blocks_freed[i] =
871 le32_to_cpu(status->tx_released_blks[i]);
13b107dd
SL		 872 }
873
d2f4d47d
IY		 874 if (wl->bss_type == BSS_TYPE_AP_BSS) {
875 /* Update num of allocated TX blocks per link and ps status */
876 wl1271_irq_update_links_status(wl, &full_status->ap);
877 wl->tx_blocks_available += freed_blocks;
878 } else {
9e374a37
AN		 879 int avail = full_status->sta.tx_total -
880 wl1271_tx_allocated_blocks(wl);
13b107dd 881
d2f4d47d
IY		 882 /*
883 * The FW might change the total number of TX memblocks before
884 * we get a notification about blocks being released. Thus, the
885 * available blocks calculation might yield a temporary result
886 * which is lower than the actual available blocks. Keeping in
887 * mind that only blocks that were allocated can be moved from
888 * TX to RX, tx_blocks_available should never decrease here.
889 */
890 wl->tx_blocks_available = max((int)wl->tx_blocks_available,
891 avail);
f5fc0f86
LC		 892 }
893
a522550a 894 /* if more blocks are available now, tx work can be scheduled */
13b107dd 895 if (wl->tx_blocks_available > old_tx_blk_count)
a522550a 896 clear_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags);
f5fc0f86
LC		 897
898 /* update the host-chipset time offset */
ac5e1e39
JO		 899 getnstimeofday(&ts);
900 wl->time_offset = (timespec_to_ns(&ts) >> 10) -
901 (s64)le32_to_cpu(status->fw_localtime);
f5fc0f86
LC		 902}
903
a620865e
IY		 904static void wl1271_flush_deferred_work(struct wl1271 *wl)
905{
906 struct sk_buff *skb;
907
908 /* Pass all received frames to the network stack */
909 while ((skb = skb_dequeue(&wl->deferred_rx_queue)))
910 ieee80211_rx_ni(wl->hw, skb);
911
912 /* Return sent skbs to the network stack */
913 while ((skb = skb_dequeue(&wl->deferred_tx_queue)))
c27d3acc 914 ieee80211_tx_status_ni(wl->hw, skb);
a620865e
IY		 915}
916
917static void wl1271_netstack_work(struct work_struct *work)
918{
919 struct wl1271 *wl =
920 container_of(work, struct wl1271, netstack_work);
921
922 do {
923 wl1271_flush_deferred_work(wl);
924 } while (skb_queue_len(&wl->deferred_rx_queue));
925}
1e73eb62 926
a620865e
IY		 927#define WL1271_IRQ_MAX_LOOPS 256
928
929irqreturn_t wl1271_irq(int irq, void *cookie)
f5fc0f86 930{
f5fc0f86 931 int ret;
c15f63bf 932 u32 intr;
1e73eb62 933 int loopcount = WL1271_IRQ_MAX_LOOPS;
a620865e
IY		 934 struct wl1271 *wl = (struct wl1271 *)cookie;
935 bool done = false;
936 unsigned int defer_count;
b07d4037
IY		 937 unsigned long flags;
938
939 /* TX might be handled here, avoid redundant work */
940 set_bit(WL1271_FLAG_TX_PENDING, &wl->flags);
941 cancel_work_sync(&wl->tx_work);
f5fc0f86 942
341b7cde
IY		 943 /*
944 * In case edge triggered interrupt must be used, we cannot iterate
945 * more than once without introducing race conditions with the hardirq.
946 */
947 if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
948 loopcount = 1;
949
f5fc0f86
LC		 950 mutex_lock(&wl->mutex);
951
952 wl1271_debug(DEBUG_IRQ, "IRQ work");
953
1e73eb62 954 if (unlikely(wl->state == WL1271_STATE_OFF))
f5fc0f86
LC		 955 goto out;
956
a620865e 957 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 958 if (ret < 0)
959 goto out;
960
a620865e
IY		 961 while (!done && loopcount--) {
962 /*
963 * In order to avoid a race with the hardirq, clear the flag
964 * before acknowledging the chip. Since the mutex is held,
965 * wl1271_ps_elp_wakeup cannot be called concurrently.
966 */
967 clear_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags);
968 smp_mb__after_clear_bit();
1e73eb62
JO		 969
970 wl1271_fw_status(wl, wl->fw_status);
c8bde243 971 intr = le32_to_cpu(wl->fw_status->common.intr);
a620865e 972 intr &= WL1271_INTR_MASK;
1e73eb62 973 if (!intr) {
a620865e 974 done = true;
1e73eb62
JO		 975 continue;
976 }
f5fc0f86 977
ccc83b04
EP		 978 if (unlikely(intr & WL1271_ACX_INTR_WATCHDOG)) {
979 wl1271_error("watchdog interrupt received! "
980 "starting recovery.");
baacb9ae 981 wl12xx_queue_recovery_work(wl);
ccc83b04
EP		 982
983 /* restarting the chip. ignore any other interrupt. */
984 goto out;
985 }
986
a620865e 987 if (likely(intr & WL1271_ACX_INTR_DATA)) {
1e73eb62 988 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_DATA");
1fd2794f 989
8aad2464 990 wl1271_rx(wl, &wl->fw_status->common);
f5fc0f86 991
a522550a 992 /* Check if any tx blocks were freed */
b07d4037 993 spin_lock_irqsave(&wl->wl_lock, flags);
a522550a 994 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
f1a46384 995 wl1271_tx_total_queue_count(wl) > 0) {
b07d4037 996 spin_unlock_irqrestore(&wl->wl_lock, flags);
a522550a
IY		 997 /*
998 * In order to avoid starvation of the TX path,
999 * call the work function directly.
1000 */
1001 wl1271_tx_work_locked(wl);
b07d4037
IY		 1002 } else {
1003 spin_unlock_irqrestore(&wl->wl_lock, flags);
a522550a
IY		 1004 }
1005
8aad2464
IY		 1006 /* check for tx results */
1007 if (wl->fw_status->common.tx_results_counter !=
1008 (wl->tx_results_count & 0xff))
1009 wl1271_tx_complete(wl);
a620865e
IY		 1010
1011 /* Make sure the deferred queues don't get too long */
1012 defer_count = skb_queue_len(&wl->deferred_tx_queue) +
1013 skb_queue_len(&wl->deferred_rx_queue);
1014 if (defer_count > WL1271_DEFERRED_QUEUE_LIMIT)
1015 wl1271_flush_deferred_work(wl);
1e73eb62 1016 }
f5fc0f86 1017
1e73eb62
JO		 1018 if (intr & WL1271_ACX_INTR_EVENT_A) {
1019 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_A");
1020 wl1271_event_handle(wl, 0);
1021 }
f5fc0f86 1022
1e73eb62
JO		 1023 if (intr & WL1271_ACX_INTR_EVENT_B) {
1024 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_B");
1025 wl1271_event_handle(wl, 1);
1026 }
f5fc0f86 1027
1e73eb62
JO		 1028 if (intr & WL1271_ACX_INTR_INIT_COMPLETE)
1029 wl1271_debug(DEBUG_IRQ,
1030 "WL1271_ACX_INTR_INIT_COMPLETE");
f5fc0f86 1031
1e73eb62
JO		 1032 if (intr & WL1271_ACX_INTR_HW_AVAILABLE)
1033 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_HW_AVAILABLE");
c15f63bf 1034 }
f5fc0f86 1035
f5fc0f86
LC		 1036 wl1271_ps_elp_sleep(wl);
1037
1038out:
b07d4037
IY		 1039 spin_lock_irqsave(&wl->wl_lock, flags);
1040 /* In case TX was not handled here, queue TX work */
1041 clear_bit(WL1271_FLAG_TX_PENDING, &wl->flags);
1042 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
f1a46384 1043 wl1271_tx_total_queue_count(wl) > 0)
b07d4037
IY		 1044 ieee80211_queue_work(wl->hw, &wl->tx_work);
1045 spin_unlock_irqrestore(&wl->wl_lock, flags);
1046
f5fc0f86 1047 mutex_unlock(&wl->mutex);
a620865e
IY		 1048
1049 return IRQ_HANDLED;
f5fc0f86 1050}
a620865e 1051EXPORT_SYMBOL_GPL(wl1271_irq);
f5fc0f86 1052
f5fc0f86
LC		 1053static int wl1271_fetch_firmware(struct wl1271 *wl)
1054{
1055 const struct firmware *fw;
166d504e 1056 const char *fw_name;
f5fc0f86
LC		 1057 int ret;
1058
166d504e
AN		 1059 switch (wl->bss_type) {
1060 case BSS_TYPE_AP_BSS:
1aed55fd
AN		 1061 if (wl->chip.id == CHIP_ID_1283_PG20)
1062 fw_name = WL128X_AP_FW_NAME;
1063 else
1064 fw_name = WL127X_AP_FW_NAME;
166d504e
AN		 1065 break;
1066 case BSS_TYPE_IBSS:
1067 case BSS_TYPE_STA_BSS:
bc765bf3
SL		 1068 if (wl->chip.id == CHIP_ID_1283_PG20)
1069 fw_name = WL128X_FW_NAME;
1070 else
1071 fw_name = WL1271_FW_NAME;
166d504e
AN		 1072 break;
1073 default:
1074 wl1271_error("no compatible firmware for bss_type %d",
1075 wl->bss_type);
1076 return -EINVAL;
1077 }
1078
1079 wl1271_debug(DEBUG_BOOT, "booting firmware %s", fw_name);
1080
1081 ret = request_firmware(&fw, fw_name, wl1271_wl_to_dev(wl));
f5fc0f86
LC		 1082
1083 if (ret < 0) {
1084 wl1271_error("could not get firmware: %d", ret);
1085 return ret;
1086 }
1087
1088 if (fw->size % 4) {
1089 wl1271_error("firmware size is not multiple of 32 bits: %zu",
1090 fw->size);
1091 ret = -EILSEQ;
1092 goto out;
1093 }
1094
166d504e 1095 vfree(wl->fw);
f5fc0f86 1096 wl->fw_len = fw->size;
1fba4974 1097 wl->fw = vmalloc(wl->fw_len);
f5fc0f86
LC		 1098
1099 if (!wl->fw) {
1100 wl1271_error("could not allocate memory for the firmware");
1101 ret = -ENOMEM;
1102 goto out;
1103 }
1104
1105 memcpy(wl->fw, fw->data, wl->fw_len);
166d504e 1106 wl->fw_bss_type = wl->bss_type;
f5fc0f86
LC		 1107 ret = 0;
1108
1109out:
1110 release_firmware(fw);
1111
1112 return ret;
1113}
1114
1115static int wl1271_fetch_nvs(struct wl1271 *wl)
1116{
1117 const struct firmware *fw;
1118 int ret;
1119
5aa42346 1120 ret = request_firmware(&fw, WL12XX_NVS_NAME, wl1271_wl_to_dev(wl));
f5fc0f86
LC		 1121
1122 if (ret < 0) {
1123 wl1271_error("could not get nvs file: %d", ret);
1124 return ret;
1125 }
1126
bc765bf3 1127 wl->nvs = kmemdup(fw->data, fw->size, GFP_KERNEL);
f5fc0f86
LC		 1128
1129 if (!wl->nvs) {
1130 wl1271_error("could not allocate memory for the nvs file");
1131 ret = -ENOMEM;
1132 goto out;
1133 }
1134
02fabb0e
JO		 1135 wl->nvs_len = fw->size;
1136
f5fc0f86
LC		 1137out:
1138 release_firmware(fw);
1139
1140 return ret;
1141}
1142
baacb9ae
IY		 1143void wl12xx_queue_recovery_work(struct wl1271 *wl)
1144{
1145 if (!test_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags))
1146 ieee80211_queue_work(wl->hw, &wl->recovery_work);
1147}
1148
95dac04f
IY		 1149size_t wl12xx_copy_fwlog(struct wl1271 *wl, u8 *memblock, size_t maxlen)
1150{
1151 size_t len = 0;
1152
1153 /* The FW log is a length-value list, find where the log end */
1154 while (len < maxlen) {
1155 if (memblock[len] == 0)
1156 break;
1157 if (len + memblock[len] + 1 > maxlen)
1158 break;
1159 len += memblock[len] + 1;
1160 }
1161
1162 /* Make sure we have enough room */
1163 len = min(len, (size_t)(PAGE_SIZE - wl->fwlog_size));
1164
1165 /* Fill the FW log file, consumed by the sysfs fwlog entry */
1166 memcpy(wl->fwlog + wl->fwlog_size, memblock, len);
1167 wl->fwlog_size += len;
1168
1169 return len;
1170}
1171
1172static void wl12xx_read_fwlog_panic(struct wl1271 *wl)
1173{
1174 u32 addr;
1175 u32 first_addr;
1176 u8 *block;
1177
1178 if ((wl->quirks & WL12XX_QUIRK_FWLOG_NOT_IMPLEMENTED) ||
1179 (wl->conf.fwlog.mode != WL12XX_FWLOG_ON_DEMAND) ||
1180 (wl->conf.fwlog.mem_blocks == 0))
1181 return;
1182
1183 wl1271_info("Reading FW panic log");
1184
1185 block = kmalloc(WL12XX_HW_BLOCK_SIZE, GFP_KERNEL);
1186 if (!block)
1187 return;
1188
1189 /*
1190 * Make sure the chip is awake and the logger isn't active.
1191 * This might fail if the firmware hanged.
1192 */
1193 if (!wl1271_ps_elp_wakeup(wl))
1194 wl12xx_cmd_stop_fwlog(wl);
1195
1196 /* Read the first memory block address */
1197 wl1271_fw_status(wl, wl->fw_status);
1198 first_addr = __le32_to_cpu(wl->fw_status->sta.log_start_addr);
1199 if (!first_addr)
1200 goto out;
1201
1202 /* Traverse the memory blocks linked list */
1203 addr = first_addr;
1204 do {
1205 memset(block, 0, WL12XX_HW_BLOCK_SIZE);
1206 wl1271_read_hwaddr(wl, addr, block, WL12XX_HW_BLOCK_SIZE,
1207 false);
1208
1209 /*
1210 * Memory blocks are linked to one another. The first 4 bytes
1211 * of each memory block hold the hardware address of the next
1212 * one. The last memory block points to the first one.
1213 */
1214 addr = __le32_to_cpup((__le32 *)block);
1215 if (!wl12xx_copy_fwlog(wl, block + sizeof(addr),
1216 WL12XX_HW_BLOCK_SIZE - sizeof(addr)))
1217 break;
1218 } while (addr && (addr != first_addr));
1219
1220 wake_up_interruptible(&wl->fwlog_waitq);
1221
1222out:
1223 kfree(block);
1224}
1225
52b0e7a6
JO		 1226static void wl1271_recovery_work(struct work_struct *work)
1227{
1228 struct wl1271 *wl =
1229 container_of(work, struct wl1271, recovery_work);
1230
1231 mutex_lock(&wl->mutex);
1232
1233 if (wl->state != WL1271_STATE_ON)
1234 goto out;
1235
baacb9ae
IY		 1236 /* Avoid a recursive recovery */
1237 set_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
1238
95dac04f
IY		 1239 wl12xx_read_fwlog_panic(wl);
1240
52dcaf57
AN		 1241 wl1271_info("Hardware recovery in progress. FW ver: %s pc: 0x%x",
1242 wl->chip.fw_ver_str, wl1271_read32(wl, SCR_PAD4));
52b0e7a6 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
d25611da
JO		 1253 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
1254 ieee80211_connection_loss(wl->vif);
1255
7dece1c8
AN		 1256 /* Prevent spurious TX during FW restart */
1257 ieee80211_stop_queues(wl->hw);
1258
33c2c06c
LC		 1259 if (wl->sched_scanning) {
1260 ieee80211_sched_scan_stopped(wl->hw);
1261 wl->sched_scanning = false;
1262 }
1263
52b0e7a6 1264 /* reboot the chipset */
7dece1c8 1265 __wl1271_op_remove_interface(wl, false);
baacb9ae
IY		 1266
1267 clear_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
1268
52b0e7a6
JO		 1269 ieee80211_restart_hw(wl->hw);
1270
7dece1c8
AN		 1271 /*
1272 * Its safe to enable TX now - the queues are stopped after a request
1273 * to restart the HW.
1274 */
1275 ieee80211_wake_queues(wl->hw);
1276
52b0e7a6
JO		 1277out:
1278 mutex_unlock(&wl->mutex);
1279}
1280
f5fc0f86
LC		 1281static void wl1271_fw_wakeup(struct wl1271 *wl)
1282{
1283 u32 elp_reg;
1284
1285 elp_reg = ELPCTRL_WAKE_UP;
74621417 1286 wl1271_raw_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg);
f5fc0f86
LC		 1287}
1288
1289static int wl1271_setup(struct wl1271 *wl)
1290{
1291 wl->fw_status = kmalloc(sizeof(*wl->fw_status), GFP_KERNEL);
1292 if (!wl->fw_status)
1293 return -ENOMEM;
1294
1295 wl->tx_res_if = kmalloc(sizeof(*wl->tx_res_if), GFP_KERNEL);
1296 if (!wl->tx_res_if) {
1297 kfree(wl->fw_status);
1298 return -ENOMEM;
1299 }
1300
f5fc0f86
LC		 1301 return 0;
1302}
1303
1304static int wl1271_chip_wakeup(struct wl1271 *wl)
1305{
451de97a 1306 struct wl1271_partition_set partition;
f5fc0f86
LC		 1307 int ret = 0;
1308
01ac17ec 1309 msleep(WL1271_PRE_POWER_ON_SLEEP);
2cc78ff7
OBC		 1310 ret = wl1271_power_on(wl);
1311 if (ret < 0)
1312 goto out;
f5fc0f86 1313 msleep(WL1271_POWER_ON_SLEEP);
9b280722
TP		 1314 wl1271_io_reset(wl);
1315 wl1271_io_init(wl);
f5fc0f86
LC		 1316
1317 /* We don't need a real memory partition here, because we only want
1318 * to use the registers at this point. */
451de97a
JO		 1319 memset(&partition, 0, sizeof(partition));
1320 partition.reg.start = REGISTERS_BASE;
1321 partition.reg.size = REGISTERS_DOWN_SIZE;
1322 wl1271_set_partition(wl, &partition);
f5fc0f86
LC		 1323
1324 /* ELP module wake up */
1325 wl1271_fw_wakeup(wl);
1326
1327 /* whal_FwCtrl_BootSm() */
1328
1329 /* 0. read chip id from CHIP_ID */
7b048c52 1330 wl->chip.id = wl1271_read32(wl, CHIP_ID_B);
f5fc0f86
LC		 1331
1332 /* 1. check if chip id is valid */
1333
1334 switch (wl->chip.id) {
1335 case CHIP_ID_1271_PG10:
1336 wl1271_warning("chip id 0x%x (1271 PG10) support is obsolete",
1337 wl->chip.id);
1338
1339 ret = wl1271_setup(wl);
1340 if (ret < 0)
9ccd9217 1341 goto out;
f5fc0f86
LC		 1342 break;
1343 case CHIP_ID_1271_PG20:
1344 wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1271 PG20)",
1345 wl->chip.id);
1346
0c005048
SL		 1347 /*
1348 * 'end-of-transaction flag' and 'LPD mode flag'
1349 * should be set in wl127x AP mode only
1350 */
564f5950 1351 if (wl->bss_type == BSS_TYPE_AP_BSS)
0c005048
SL		 1352 wl->quirks |= (WL12XX_QUIRK_END_OF_TRANSACTION |
1353 WL12XX_QUIRK_LPD_MODE);
564f5950 1354
f5fc0f86
LC		 1355 ret = wl1271_setup(wl);
1356 if (ret < 0)
9ccd9217 1357 goto out;
f5fc0f86 1358 break;
0830ceed
SL		 1359 case CHIP_ID_1283_PG20:
1360 wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1283 PG20)",
1361 wl->chip.id);
1362
1363 ret = wl1271_setup(wl);
1364 if (ret < 0)
1365 goto out;
0c005048 1366
0da13da7
IY		 1367 if (wl1271_set_block_size(wl))
1368 wl->quirks |= WL12XX_QUIRK_BLOCKSIZE_ALIGNMENT;
0830ceed
SL		 1369 break;
1370 case CHIP_ID_1283_PG10:
f5fc0f86 1371 default:
9ccd9217 1372 wl1271_warning("unsupported chip id: 0x%x", wl->chip.id);
f5fc0f86 1373 ret = -ENODEV;
9ccd9217 1374 goto out;
f5fc0f86
LC		 1375 }
1376
166d504e
AN		 1377 /* Make sure the firmware type matches the BSS type */
1378 if (wl->fw == NULL || wl->fw_bss_type != wl->bss_type) {
f5fc0f86
LC		 1379 ret = wl1271_fetch_firmware(wl);
1380 if (ret < 0)
9ccd9217 1381 goto out;
f5fc0f86
LC		 1382 }
1383
1384 /* No NVS from netlink, try to get it from the filesystem */
1385 if (wl->nvs == NULL) {
1386 ret = wl1271_fetch_nvs(wl);
1387 if (ret < 0)
9ccd9217 1388 goto out;
f5fc0f86
LC		 1389 }
1390
1391out:
1392 return ret;
1393}
1394
f5fc0f86
LC		 1395int wl1271_plt_start(struct wl1271 *wl)
1396{
9ccd9217 1397 int retries = WL1271_BOOT_RETRIES;
f5fc0f86
LC		 1398 int ret;
1399
1400 mutex_lock(&wl->mutex);
1401
1402 wl1271_notice("power up");
1403
1404 if (wl->state != WL1271_STATE_OFF) {
1405 wl1271_error("cannot go into PLT state because not "
1406 "in off state: %d", wl->state);
1407 ret = -EBUSY;
1408 goto out;
1409 }
1410
166d504e
AN		 1411 wl->bss_type = BSS_TYPE_STA_BSS;
1412
9ccd9217
JO		 1413 while (retries) {
1414 retries--;
1415 ret = wl1271_chip_wakeup(wl);
1416 if (ret < 0)
1417 goto power_off;
f5fc0f86 1418
9ccd9217
JO		 1419 ret = wl1271_boot(wl);
1420 if (ret < 0)
1421 goto power_off;
eb5b28d0 1422
9ccd9217
JO		 1423 ret = wl1271_plt_init(wl);
1424 if (ret < 0)
1425 goto irq_disable;
bd5ea18f 1426
9ccd9217
JO		 1427 wl->state = WL1271_STATE_PLT;
1428 wl1271_notice("firmware booted in PLT mode (%s)",
4b7fac77 1429 wl->chip.fw_ver_str);
e7ddf549 1430
9ccd9217 1431 goto out;
eb5b28d0 1432
9ccd9217 1433irq_disable:
9ccd9217
JO		 1434 mutex_unlock(&wl->mutex);
1435 /* Unlocking the mutex in the middle of handling is
1436 inherently unsafe. In this case we deem it safe to do,
1437 because we need to let any possibly pending IRQ out of
1438 the system (and while we are WL1271_STATE_OFF the IRQ
1439 work function will not do anything.) Also, any other
1440 possible concurrent operations will fail due to the
1441 current state, hence the wl1271 struct should be safe. */
a620865e
IY		 1442 wl1271_disable_interrupts(wl);
1443 wl1271_flush_deferred_work(wl);
1444 cancel_work_sync(&wl->netstack_work);
9ccd9217
JO		 1445 mutex_lock(&wl->mutex);
1446power_off:
1447 wl1271_power_off(wl);
1448 }
f5fc0f86 1449
9ccd9217
JO		 1450 wl1271_error("firmware boot in PLT mode failed despite %d retries",
1451 WL1271_BOOT_RETRIES);
f5fc0f86
LC		 1452out:
1453 mutex_unlock(&wl->mutex);
1454
1455 return ret;
1456}
1457
4623ec7d 1458static int __wl1271_plt_stop(struct wl1271 *wl)
f5fc0f86
LC		 1459{
1460 int ret = 0;
1461
f5fc0f86
LC		 1462 wl1271_notice("power down");
1463
1464 if (wl->state != WL1271_STATE_PLT) {
1465 wl1271_error("cannot power down because not in PLT "
1466 "state: %d", wl->state);
1467 ret = -EBUSY;
1468 goto out;
1469 }
1470
f5fc0f86
LC		 1471 wl1271_power_off(wl);
1472
1473 wl->state = WL1271_STATE_OFF;
bd5ea18f 1474 wl->rx_counter = 0;
f5fc0f86 1475
f5fc0f86 1476 mutex_unlock(&wl->mutex);
a620865e
IY		 1477 wl1271_disable_interrupts(wl);
1478 wl1271_flush_deferred_work(wl);
1479 cancel_work_sync(&wl->netstack_work);
52b0e7a6 1480 cancel_work_sync(&wl->recovery_work);
4ae3fa87
JO		 1481 mutex_lock(&wl->mutex);
1482out:
1483 return ret;
1484}
1485
1486int wl1271_plt_stop(struct wl1271 *wl)
1487{
1488 int ret;
8c7f4f31 1489
4ae3fa87
JO		 1490 mutex_lock(&wl->mutex);
1491 ret = __wl1271_plt_stop(wl);
1492 mutex_unlock(&wl->mutex);
f5fc0f86
LC		 1493 return ret;
1494}
1495
7bb45683 1496static void wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
f5fc0f86
LC		 1497{
1498 struct wl1271 *wl = hw->priv;
830fb67b 1499 unsigned long flags;
708bb3cf 1500 int q, mapping;
a8c0ddb5 1501 u8 hlid = 0;
f5fc0f86 1502
708bb3cf
AN		 1503 mapping = skb_get_queue_mapping(skb);
1504 q = wl1271_tx_get_queue(mapping);
b07d4037
IY		 1505
1506 if (wl->bss_type == BSS_TYPE_AP_BSS)
1507 hlid = wl1271_tx_get_hlid(skb);
1508
830fb67b 1509 spin_lock_irqsave(&wl->wl_lock, flags);
b07d4037 1510
f1a46384 1511 wl->tx_queue_count[q]++;
f4d08ddd
AN		 1512
1513 /*
1514 * The workqueue is slow to process the tx_queue and we need stop
1515 * the queue here, otherwise the queue will get too long.
1516 */
f1a46384 1517 if (wl->tx_queue_count[q] >= WL1271_TX_QUEUE_HIGH_WATERMARK) {
708bb3cf
AN		 1518 wl1271_debug(DEBUG_TX, "op_tx: stopping queues for q %d", q);
1519 ieee80211_stop_queue(wl->hw, mapping);
1520 set_bit(q, &wl->stopped_queues_map);
f4d08ddd
AN		 1521 }
1522
830fb67b 1523 /* queue the packet */
a8c0ddb5 1524 if (wl->bss_type == BSS_TYPE_AP_BSS) {
a8c0ddb5
AN		 1525 wl1271_debug(DEBUG_TX, "queue skb hlid %d q %d", hlid, q);
1526 skb_queue_tail(&wl->links[hlid].tx_queue[q], skb);
1527 } else {
1528 skb_queue_tail(&wl->tx_queue[q], skb);
1529 }
f5fc0f86
LC		 1530
1531 /*
1532 * The chip specific setup must run before the first TX packet -
1533 * before that, the tx_work will not be initialized!
1534 */
1535
b07d4037
IY		 1536 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags) &&
1537 !test_bit(WL1271_FLAG_TX_PENDING, &wl->flags))
a522550a 1538 ieee80211_queue_work(wl->hw, &wl->tx_work);
b07d4037
IY		 1539
1540 spin_unlock_irqrestore(&wl->wl_lock, flags);
f5fc0f86
LC		 1541}
1542
ae47c45f
SL		 1543int wl1271_tx_dummy_packet(struct wl1271 *wl)
1544{
990f5de7 1545 unsigned long flags;
f1a46384 1546 int q = wl1271_tx_get_queue(skb_get_queue_mapping(wl->dummy_packet));
990f5de7
IY		 1547
1548 spin_lock_irqsave(&wl->wl_lock, flags);
1549 set_bit(WL1271_FLAG_DUMMY_PACKET_PENDING, &wl->flags);
f1a46384 1550 wl->tx_queue_count[q]++;
990f5de7
IY		 1551 spin_unlock_irqrestore(&wl->wl_lock, flags);
1552
1553 /* The FW is low on RX memory blocks, so send the dummy packet asap */
1554 if (!test_bit(WL1271_FLAG_FW_TX_BUSY, &wl->flags))
1555 wl1271_tx_work_locked(wl);
1556
1557 /*
1558 * If the FW TX is busy, TX work will be scheduled by the threaded
1559 * interrupt handler function
1560 */
1561 return 0;
1562}
1563
1564/*
1565 * The size of the dummy packet should be at least 1400 bytes. However, in
1566 * order to minimize the number of bus transactions, aligning it to 512 bytes
1567 * boundaries could be beneficial, performance wise
1568 */
1569#define TOTAL_TX_DUMMY_PACKET_SIZE (ALIGN(1400, 512))
1570
cf27d867 1571static struct sk_buff *wl12xx_alloc_dummy_packet(struct wl1271 *wl)
990f5de7
IY		 1572{
1573 struct sk_buff *skb;
ae47c45f 1574 struct ieee80211_hdr_3addr *hdr;
990f5de7
IY		 1575 unsigned int dummy_packet_size;
1576
1577 dummy_packet_size = TOTAL_TX_DUMMY_PACKET_SIZE -
1578 sizeof(struct wl1271_tx_hw_descr) - sizeof(*hdr);
ae47c45f 1579
990f5de7 1580 skb = dev_alloc_skb(TOTAL_TX_DUMMY_PACKET_SIZE);
ae47c45f 1581 if (!skb) {
990f5de7
IY		 1582 wl1271_warning("Failed to allocate a dummy packet skb");
1583 return NULL;
ae47c45f
SL		 1584 }
1585
1586 skb_reserve(skb, sizeof(struct wl1271_tx_hw_descr));
1587
1588 hdr = (struct ieee80211_hdr_3addr *) skb_put(skb, sizeof(*hdr));
1589 memset(hdr, 0, sizeof(*hdr));
1590 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
990f5de7
IY		 1591 IEEE80211_STYPE_NULLFUNC |
1592 IEEE80211_FCTL_TODS);
ae47c45f 1593
990f5de7 1594 memset(skb_put(skb, dummy_packet_size), 0, dummy_packet_size);
ae47c45f 1595
18b92ffa
LC		 1596 /* Dummy packets require the TID to be management */
1597 skb->priority = WL1271_TID_MGMT;
ae47c45f 1598
990f5de7 1599 /* Initialize all fields that might be used */
86c438f4 1600 skb_set_queue_mapping(skb, 0);
990f5de7 1601 memset(IEEE80211_SKB_CB(skb), 0, sizeof(struct ieee80211_tx_info));
ae47c45f 1602
990f5de7 1603 return skb;
ae47c45f
SL		 1604}
1605
990f5de7 1606
c2c192ac
JO		 1607static struct notifier_block wl1271_dev_notifier = {
1608 .notifier_call = wl1271_dev_notify,
1609};
1610
f634a4e7 1611#ifdef CONFIG_PM
8a7cf3fe 1612static int wl1271_configure_suspend_sta(struct wl1271 *wl)
9439064c 1613{
e85d1629 1614 int ret = 0;
9439064c 1615
9439064c
EP		 1616 mutex_lock(&wl->mutex);
1617
e85d1629
EP		 1618 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
1619 goto out_unlock;
1620
9439064c
EP		 1621 ret = wl1271_ps_elp_wakeup(wl);
1622 if (ret < 0)
1623 goto out_unlock;
1624
1625 /* enter psm if needed*/
1626 if (!test_bit(WL1271_FLAG_PSM, &wl->flags)) {
1627 DECLARE_COMPLETION_ONSTACK(compl);
1628
1629 wl->ps_compl = &compl;
1630 ret = wl1271_ps_set_mode(wl, STATION_POWER_SAVE_MODE,
1631 wl->basic_rate, true);
1632 if (ret < 0)
1633 goto out_sleep;
1634
1635 /* we must unlock here so we will be able to get events */
1636 wl1271_ps_elp_sleep(wl);
1637 mutex_unlock(&wl->mutex);
1638
1639 ret = wait_for_completion_timeout(
1640 &compl, msecs_to_jiffies(WL1271_PS_COMPLETE_TIMEOUT));
1641 if (ret <= 0) {
1642 wl1271_warning("couldn't enter ps mode!");
1643 ret = -EBUSY;
1644 goto out;
1645 }
1646
1647 /* take mutex again, and wakeup */
1648 mutex_lock(&wl->mutex);
1649
1650 ret = wl1271_ps_elp_wakeup(wl);
1651 if (ret < 0)
1652 goto out_unlock;
1653 }
1654out_sleep:
1655 wl1271_ps_elp_sleep(wl);
1656out_unlock:
1657 mutex_unlock(&wl->mutex);
1658out:
1659 return ret;
1660
1661}
1662
8a7cf3fe
EP		 1663static int wl1271_configure_suspend_ap(struct wl1271 *wl)
1664{
e85d1629 1665 int ret = 0;
8a7cf3fe
EP		 1666
1667 mutex_lock(&wl->mutex);
1668
e85d1629
EP		 1669 if (!test_bit(WL1271_FLAG_AP_STARTED, &wl->flags))
1670 goto out_unlock;
1671
8a7cf3fe
EP		 1672 ret = wl1271_ps_elp_wakeup(wl);
1673 if (ret < 0)
1674 goto out_unlock;
1675
1676 ret = wl1271_acx_set_ap_beacon_filter(wl, true);
1677
1678 wl1271_ps_elp_sleep(wl);
1679out_unlock:
1680 mutex_unlock(&wl->mutex);
1681 return ret;
1682
1683}
1684
1685static int wl1271_configure_suspend(struct wl1271 *wl)
1686{
1687 if (wl->bss_type == BSS_TYPE_STA_BSS)
1688 return wl1271_configure_suspend_sta(wl);
1689 if (wl->bss_type == BSS_TYPE_AP_BSS)
1690 return wl1271_configure_suspend_ap(wl);
1691 return 0;
1692}
1693
9439064c
EP		 1694static void wl1271_configure_resume(struct wl1271 *wl)
1695{
1696 int ret;
8a7cf3fe
EP		 1697 bool is_sta = wl->bss_type == BSS_TYPE_STA_BSS;
1698 bool is_ap = wl->bss_type == BSS_TYPE_AP_BSS;
9439064c 1699
8a7cf3fe 1700 if (!is_sta && !is_ap)
9439064c
EP		 1701 return;
1702
1703 mutex_lock(&wl->mutex);
1704 ret = wl1271_ps_elp_wakeup(wl);
1705 if (ret < 0)
1706 goto out;
1707
8a7cf3fe
EP		 1708 if (is_sta) {
1709 /* exit psm if it wasn't configured */
1710 if (!test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags))
1711 wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE,
1712 wl->basic_rate, true);
1713 } else if (is_ap) {
1714 wl1271_acx_set_ap_beacon_filter(wl, false);
1715 }
9439064c
EP		 1716
1717 wl1271_ps_elp_sleep(wl);
1718out:
1719 mutex_unlock(&wl->mutex);
1720}
1721
402e4861
EP		 1722static int wl1271_op_suspend(struct ieee80211_hw *hw,
1723 struct cfg80211_wowlan *wow)
1724{
1725 struct wl1271 *wl = hw->priv;
4a859df8
EP		 1726 int ret;
1727
402e4861 1728 wl1271_debug(DEBUG_MAC80211, "mac80211 suspend wow=%d", !!wow);
4a859df8 1729 WARN_ON(!wow || !wow->any);
f44e5868 1730
4a859df8
EP		 1731 wl->wow_enabled = true;
1732 ret = wl1271_configure_suspend(wl);
1733 if (ret < 0) {
1734 wl1271_warning("couldn't prepare device to suspend");
1735 return ret;
1736 }
1737 /* flush any remaining work */
1738 wl1271_debug(DEBUG_MAC80211, "flushing remaining works");
f44e5868 1739
4a859df8
EP		 1740 /*
1741 * disable and re-enable interrupts in order to flush
1742 * the threaded_irq
1743 */
1744 wl1271_disable_interrupts(wl);
1745
1746 /*
1747 * set suspended flag to avoid triggering a new threaded_irq
1748 * work. no need for spinlock as interrupts are disabled.
1749 */
1750 set_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
1751
1752 wl1271_enable_interrupts(wl);
1753 flush_work(&wl->tx_work);
1754 flush_delayed_work(&wl->pspoll_work);
1755 flush_delayed_work(&wl->elp_work);
f44e5868 1756
402e4861
EP		 1757 return 0;
1758}
1759
1760static int wl1271_op_resume(struct ieee80211_hw *hw)
1761{
1762 struct wl1271 *wl = hw->priv;
4a859df8
EP		 1763 unsigned long flags;
1764 bool run_irq_work = false;
1765
402e4861
EP		 1766 wl1271_debug(DEBUG_MAC80211, "mac80211 resume wow=%d",
1767 wl->wow_enabled);
4a859df8 1768 WARN_ON(!wl->wow_enabled);
f44e5868
EP		 1769
1770 /*
1771 * re-enable irq_work enqueuing, and call irq_work directly if
1772 * there is a pending work.
1773 */
4a859df8
EP		 1774 spin_lock_irqsave(&wl->wl_lock, flags);
1775 clear_bit(WL1271_FLAG_SUSPENDED, &wl->flags);
1776 if (test_and_clear_bit(WL1271_FLAG_PENDING_WORK, &wl->flags))
1777 run_irq_work = true;
1778 spin_unlock_irqrestore(&wl->wl_lock, flags);
9439064c 1779
4a859df8
EP		 1780 if (run_irq_work) {
1781 wl1271_debug(DEBUG_MAC80211,
1782 "run postponed irq_work directly");
1783 wl1271_irq(0, wl);
1784 wl1271_enable_interrupts(wl);
f44e5868 1785 }
4a859df8 1786 wl1271_configure_resume(wl);
ff91afc9 1787 wl->wow_enabled = false;
f44e5868 1788
402e4861
EP		 1789 return 0;
1790}
f634a4e7 1791#endif
402e4861 1792
f5fc0f86 1793static int wl1271_op_start(struct ieee80211_hw *hw)
1b72aecd
JO		 1794{
1795 wl1271_debug(DEBUG_MAC80211, "mac80211 start");
1796
1797 /*
1798 * We have to delay the booting of the hardware because
1799 * we need to know the local MAC address before downloading and
1800 * initializing the firmware. The MAC address cannot be changed
1801 * after boot, and without the proper MAC address, the firmware
1802 * will not function properly.
1803 *
1804 * The MAC address is first known when the corresponding interface
1805 * is added. That is where we will initialize the hardware.
166d504e
AN		 1806 *
1807 * In addition, we currently have different firmwares for AP and managed
1808 * operation. We will know which to boot according to interface type.
1b72aecd
JO		 1809 */
1810
1811 return 0;
1812}
1813
1814static void wl1271_op_stop(struct ieee80211_hw *hw)
1815{
1816 wl1271_debug(DEBUG_MAC80211, "mac80211 stop");
1817}
1818
1819static int wl1271_op_add_interface(struct ieee80211_hw *hw,
1820 struct ieee80211_vif *vif)
f5fc0f86
LC		 1821{
1822 struct wl1271 *wl = hw->priv;
ac01e948 1823 struct wiphy *wiphy = hw->wiphy;
9ccd9217 1824 int retries = WL1271_BOOT_RETRIES;
f5fc0f86 1825 int ret = 0;
71125abd 1826 bool booted = false;
f5fc0f86 1827
1b72aecd
JO		 1828 wl1271_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM",
1829 vif->type, vif->addr);
f5fc0f86
LC		 1830
1831 mutex_lock(&wl->mutex);
1b72aecd 1832 if (wl->vif) {
71125abd
EP		 1833 wl1271_debug(DEBUG_MAC80211,
1834 "multiple vifs are not supported yet");
1b72aecd
JO		 1835 ret = -EBUSY;
1836 goto out;
1837 }
1838
13026dec
JO		 1839 /*
1840 * in some very corner case HW recovery scenarios its possible to
1841 * get here before __wl1271_op_remove_interface is complete, so
1842 * opt out if that is the case.
1843 */
1844 if (test_bit(WL1271_FLAG_IF_INITIALIZED, &wl->flags)) {
1845 ret = -EBUSY;
1846 goto out;
1847 }
1848
1b72aecd
JO		 1849 switch (vif->type) {
1850 case NL80211_IFTYPE_STATION:
1851 wl->bss_type = BSS_TYPE_STA_BSS;
5da11dcd 1852 wl->set_bss_type = BSS_TYPE_STA_BSS;
1b72aecd
JO		 1853 break;
1854 case NL80211_IFTYPE_ADHOC:
1855 wl->bss_type = BSS_TYPE_IBSS;
5da11dcd 1856 wl->set_bss_type = BSS_TYPE_STA_BSS;
1b72aecd 1857 break;
038d925b
AN		 1858 case NL80211_IFTYPE_AP:
1859 wl->bss_type = BSS_TYPE_AP_BSS;
1860 break;
1b72aecd
JO		 1861 default:
1862 ret = -EOPNOTSUPP;
1863 goto out;
1864 }
1865
1866 memcpy(wl->mac_addr, vif->addr, ETH_ALEN);
f5fc0f86
LC		 1867
1868 if (wl->state != WL1271_STATE_OFF) {
1869 wl1271_error("cannot start because not in off state: %d",
1870 wl->state);
1871 ret = -EBUSY;
1872 goto out;
1873 }
1874
9ccd9217
JO		 1875 while (retries) {
1876 retries--;
1877 ret = wl1271_chip_wakeup(wl);
1878 if (ret < 0)
1879 goto power_off;
f5fc0f86 1880
9ccd9217
JO		 1881 ret = wl1271_boot(wl);
1882 if (ret < 0)
1883 goto power_off;
f5fc0f86 1884
9ccd9217
JO		 1885 ret = wl1271_hw_init(wl);
1886 if (ret < 0)
1887 goto irq_disable;
f5fc0f86 1888
71125abd
EP		 1889 booted = true;
1890 break;
eb5b28d0 1891
9ccd9217 1892irq_disable:
9ccd9217
JO		 1893 mutex_unlock(&wl->mutex);
1894 /* Unlocking the mutex in the middle of handling is
1895 inherently unsafe. In this case we deem it safe to do,
1896 because we need to let any possibly pending IRQ out of
1897 the system (and while we are WL1271_STATE_OFF the IRQ
1898 work function will not do anything.) Also, any other
1899 possible concurrent operations will fail due to the
1900 current state, hence the wl1271 struct should be safe. */
a620865e
IY		 1901 wl1271_disable_interrupts(wl);
1902 wl1271_flush_deferred_work(wl);
1903 cancel_work_sync(&wl->netstack_work);
9ccd9217
JO		 1904 mutex_lock(&wl->mutex);
1905power_off:
1906 wl1271_power_off(wl);
1907 }
eb5b28d0 1908
71125abd
EP		 1909 if (!booted) {
1910 wl1271_error("firmware boot failed despite %d retries",
1911 WL1271_BOOT_RETRIES);
1912 goto out;
1913 }
1914
1915 wl->vif = vif;
1916 wl->state = WL1271_STATE_ON;
13026dec 1917 set_bit(WL1271_FLAG_IF_INITIALIZED, &wl->flags);
4b7fac77 1918 wl1271_info("firmware booted (%s)", wl->chip.fw_ver_str);
71125abd
EP		 1919
1920 /* update hw/fw version info in wiphy struct */
1921 wiphy->hw_version = wl->chip.id;
4b7fac77 1922 strncpy(wiphy->fw_version, wl->chip.fw_ver_str,
71125abd
EP		 1923 sizeof(wiphy->fw_version));
1924
fb6a6819
LC		 1925 /*
1926 * Now we know if 11a is supported (info from the NVS), so disable
1927 * 11a channels if not supported
1928 */
1929 if (!wl->enable_11a)
1930 wiphy->bands[IEEE80211_BAND_5GHZ]->n_channels = 0;
1931
1932 wl1271_debug(DEBUG_MAC80211, "11a is %ssupported",
1933 wl->enable_11a ? "" : "not ");
1934
eb5b28d0 1935out:
f5fc0f86
LC		 1936 mutex_unlock(&wl->mutex);
1937
f9f774c1 1938 mutex_lock(&wl_list_mutex);
eb887dfd 1939 if (!ret)
01c09162 1940 list_add(&wl->list, &wl_list);
f9f774c1 1941 mutex_unlock(&wl_list_mutex);
01c09162 1942
f5fc0f86
LC		 1943 return ret;
1944}
1945
7dece1c8
AN		 1946static void __wl1271_op_remove_interface(struct wl1271 *wl,
1947 bool reset_tx_queues)
f5fc0f86 1948{
f5fc0f86
LC		 1949 int i;
1950
1b72aecd 1951 wl1271_debug(DEBUG_MAC80211, "mac80211 remove interface");
f5fc0f86 1952
13026dec
JO		 1953 /* because of hardware recovery, we may get here twice */
1954 if (wl->state != WL1271_STATE_ON)
1955 return;
1956
1b72aecd 1957 wl1271_info("down");
f5fc0f86 1958
f9f774c1 1959 mutex_lock(&wl_list_mutex);
01c09162 1960 list_del(&wl->list);
f9f774c1 1961 mutex_unlock(&wl_list_mutex);
01c09162 1962
8d2ef7bd 1963 /* enable dyn ps just in case (if left on due to fw crash etc) */
9a547bf9 1964 if (wl->bss_type == BSS_TYPE_STA_BSS)
f532be6d 1965 ieee80211_enable_dyn_ps(wl->vif);
8d2ef7bd 1966
08688d6b 1967 if (wl->scan.state != WL1271_SCAN_STATE_IDLE) {
08688d6b 1968 wl->scan.state = WL1271_SCAN_STATE_IDLE;
4a31c11c 1969 memset(wl->scan.scanned_ch, 0, sizeof(wl->scan.scanned_ch));
b739a42c 1970 wl->scan.req = NULL;
76a029fb 1971 ieee80211_scan_completed(wl->hw, true);
f5fc0f86
LC		 1972 }
1973
13026dec
JO		 1974 /*
1975 * this must be before the cancel_work calls below, so that the work
1976 * functions don't perform further work.
1977 */
f5fc0f86
LC		 1978 wl->state = WL1271_STATE_OFF;
1979
f5fc0f86
LC		 1980 mutex_unlock(&wl->mutex);
1981
a620865e
IY		 1982 wl1271_disable_interrupts(wl);
1983 wl1271_flush_deferred_work(wl);
78abd320 1984 cancel_delayed_work_sync(&wl->scan_complete_work);
a620865e 1985 cancel_work_sync(&wl->netstack_work);
f5fc0f86 1986 cancel_work_sync(&wl->tx_work);
77ddaa10
EP		 1987 del_timer_sync(&wl->rx_streaming_timer);
1988 cancel_work_sync(&wl->rx_streaming_enable_work);
1989 cancel_work_sync(&wl->rx_streaming_disable_work);
90494a90 1990 cancel_delayed_work_sync(&wl->pspoll_work);
8c7f4f31 1991 cancel_delayed_work_sync(&wl->elp_work);
f5fc0f86
LC		 1992
1993 mutex_lock(&wl->mutex);
1994
1995 /* let's notify MAC80211 about the remaining pending TX frames */
7dece1c8 1996 wl1271_tx_reset(wl, reset_tx_queues);
f5fc0f86
LC		 1997 wl1271_power_off(wl);
1998
1999 memset(wl->bssid, 0, ETH_ALEN);
3b40c040 2000 memset(wl->ssid, 0, IEEE80211_MAX_SSID_LEN + 1);
f5fc0f86 2001 wl->ssid_len = 0;
f5fc0f86 2002 wl->bss_type = MAX_BSS_TYPE;
5da11dcd 2003 wl->set_bss_type = MAX_BSS_TYPE;
8a5a37a6 2004 wl->band = IEEE80211_BAND_2GHZ;
f5fc0f86
LC		 2005
2006 wl->rx_counter = 0;
19ad0715 2007 wl->psm_entry_retry = 0;
f5fc0f86
LC		 2008 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
2009 wl->tx_blocks_available = 0;
2010 wl->tx_results_count = 0;
2011 wl->tx_packets_count = 0;
2012 wl->time_offset = 0;
2013 wl->session_counter = 0;
830fb67b 2014 wl->rate_set = CONF_TX_RATE_MASK_BASIC;
1b72aecd 2015 wl->vif = NULL;
14b228a0 2016 wl->filters = 0;
7f179b46 2017 wl1271_free_ap_keys(wl);
f84f7d78 2018 memset(wl->ap_hlid_map, 0, sizeof(wl->ap_hlid_map));
b622d992
AN		 2019 wl->ap_fw_ps_map = 0;
2020 wl->ap_ps_map = 0;
33c2c06c 2021 wl->sched_scanning = false;
d6e19d13 2022
13026dec
JO		 2023 /*
2024 * this is performed after the cancel_work calls and the associated
2025 * mutex_lock, so that wl1271_op_add_interface does not accidentally
2026 * get executed before all these vars have been reset.
2027 */
2028 wl->flags = 0;
2029
9e374a37 2030 for (i = 0; i < NUM_TX_QUEUES; i++) {
f5fc0f86 2031 wl->tx_blocks_freed[i] = 0;
9e374a37
AN		 2032 wl->tx_allocated_blocks[i] = 0;
2033 }
f5fc0f86
LC		 2034
2035 wl1271_debugfs_reset(wl);
bd9dc49c
JO		 2036
2037 kfree(wl->fw_status);
2038 wl->fw_status = NULL;
2039 kfree(wl->tx_res_if);
2040 wl->tx_res_if = NULL;
2041 kfree(wl->target_mem_map);
2042 wl->target_mem_map = NULL;
52a2a375 2043}
bd9dc49c 2044
52a2a375
JO		 2045static void wl1271_op_remove_interface(struct ieee80211_hw *hw,
2046 struct ieee80211_vif *vif)
2047{
2048 struct wl1271 *wl = hw->priv;
2049
2050 mutex_lock(&wl->mutex);
67353299
JO		 2051 /*
2052 * wl->vif can be null here if someone shuts down the interface
2053 * just when hardware recovery has been started.
2054 */
2055 if (wl->vif) {
2056 WARN_ON(wl->vif != vif);
7dece1c8 2057 __wl1271_op_remove_interface(wl, true);
67353299 2058 }
52b0e7a6 2059
67353299 2060 mutex_unlock(&wl->mutex);
52b0e7a6 2061 cancel_work_sync(&wl->recovery_work);
f5fc0f86
LC		 2062}
2063
c5745187 2064void wl1271_configure_filters(struct wl1271 *wl, unsigned int filters)
14b228a0 2065{
ae113b57 2066 wl1271_set_default_filters(wl);
14b228a0
JO		 2067
2068 /* combine requested filters with current filter config */
2069 filters = wl->filters | filters;
2070
2071 wl1271_debug(DEBUG_FILTERS, "RX filters set: ");
2072
2073 if (filters & FIF_PROMISC_IN_BSS) {
2074 wl1271_debug(DEBUG_FILTERS, " - FIF_PROMISC_IN_BSS");
2075 wl->rx_config &= ~CFG_UNI_FILTER_EN;
2076 wl->rx_config |= CFG_BSSID_FILTER_EN;
2077 }
2078 if (filters & FIF_BCN_PRBRESP_PROMISC) {
2079 wl1271_debug(DEBUG_FILTERS, " - FIF_BCN_PRBRESP_PROMISC");
2080 wl->rx_config &= ~CFG_BSSID_FILTER_EN;
2081 wl->rx_config &= ~CFG_SSID_FILTER_EN;
2082 }
2083 if (filters & FIF_OTHER_BSS) {
2084 wl1271_debug(DEBUG_FILTERS, " - FIF_OTHER_BSS");
2085 wl->rx_config &= ~CFG_BSSID_FILTER_EN;
2086 }
2087 if (filters & FIF_CONTROL) {
2088 wl1271_debug(DEBUG_FILTERS, " - FIF_CONTROL");
2089 wl->rx_filter |= CFG_RX_CTL_EN;
2090 }
2091 if (filters & FIF_FCSFAIL) {
2092 wl1271_debug(DEBUG_FILTERS, " - FIF_FCSFAIL");
2093 wl->rx_filter |= CFG_RX_FCS_ERROR;
2094 }
2095}
2096
82429d32 2097static int wl1271_dummy_join(struct wl1271 *wl)
c7f43e45 2098{
e0d8bbf0 2099 int ret = 0;
c7f43e45
LC		 2100 /* we need to use a dummy BSSID for now */
2101 static const u8 dummy_bssid[ETH_ALEN] = { 0x0b, 0xad, 0xde,
2102 0xad, 0xbe, 0xef };
2103
c7f43e45
LC		 2104 memcpy(wl->bssid, dummy_bssid, ETH_ALEN);
2105
14b228a0
JO		 2106 /* pass through frames from all BSS */
2107 wl1271_configure_filters(wl, FIF_OTHER_BSS);
2108
5da11dcd 2109 ret = wl1271_cmd_join(wl, wl->set_bss_type);
c7f43e45
LC		 2110 if (ret < 0)
2111 goto out;
2112
71449f8d 2113 set_bit(WL1271_FLAG_JOINED, &wl->flags);
c7f43e45
LC		 2114
2115out:
2116 return ret;
2117}
2118
69e5434c 2119static int wl1271_join(struct wl1271 *wl, bool set_assoc)
82429d32
JO		 2120{
2121 int ret;
2122
69e5434c
JO		 2123 /*
2124 * One of the side effects of the JOIN command is that is clears
2125 * WPA/WPA2 keys from the chipset. Performing a JOIN while associated
2126 * to a WPA/WPA2 access point will therefore kill the data-path.
8bf69aae
OBC		 2127 * Currently the only valid scenario for JOIN during association
2128 * is on roaming, in which case we will also be given new keys.
2129 * Keep the below message for now, unless it starts bothering
2130 * users who really like to roam a lot :)
69e5434c
JO		 2131 */
2132 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
2133 wl1271_info("JOIN while associated.");
2134
2135 if (set_assoc)
2136 set_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags);
2137
82429d32
JO		 2138 ret = wl1271_cmd_join(wl, wl->set_bss_type);
2139 if (ret < 0)
2140 goto out;
2141
2142 set_bit(WL1271_FLAG_JOINED, &wl->flags);
2143
2144 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
2145 goto out;
2146
2147 /*
2148 * The join command disable the keep-alive mode, shut down its process,
2149 * and also clear the template config, so we need to reset it all after
2150 * the join. The acx_aid starts the keep-alive process, and the order
2151 * of the commands below is relevant.
2152 */
2153 ret = wl1271_acx_keep_alive_mode(wl, true);
2154 if (ret < 0)
2155 goto out;
2156
2157 ret = wl1271_acx_aid(wl, wl->aid);
2158 if (ret < 0)
2159 goto out;
2160
2161 ret = wl1271_cmd_build_klv_null_data(wl);
2162 if (ret < 0)
2163 goto out;
2164
2165 ret = wl1271_acx_keep_alive_config(wl, CMD_TEMPL_KLV_IDX_NULL_DATA,
2166 ACX_KEEP_ALIVE_TPL_VALID);
2167 if (ret < 0)
2168 goto out;
2169
2170out:
2171 return ret;
2172}
2173
2174static int wl1271_unjoin(struct wl1271 *wl)
c7f43e45
LC		 2175{
2176 int ret;
2177
2178 /* to stop listening to a channel, we disconnect */
2179 ret = wl1271_cmd_disconnect(wl);
2180 if (ret < 0)
2181 goto out;
2182
71449f8d 2183 clear_bit(WL1271_FLAG_JOINED, &wl->flags);
c7f43e45 2184 memset(wl->bssid, 0, ETH_ALEN);
14b228a0 2185
b992c682
OK		 2186 /* reset TX security counters on a clean disconnect */
2187 wl->tx_security_last_seq_lsb = 0;
2188 wl->tx_security_seq = 0;
2189
c5745187 2190 /* stop filtering packets based on bssid */
14b228a0 2191 wl1271_configure_filters(wl, FIF_OTHER_BSS);
c7f43e45
LC		 2192
2193out:
2194 return ret;
2195}
2196
ebba60c6
JO		 2197static void wl1271_set_band_rate(struct wl1271 *wl)
2198{
2199 if (wl->band == IEEE80211_BAND_2GHZ)
2200 wl->basic_rate_set = wl->conf.tx.basic_rate;
2201 else
2202 wl->basic_rate_set = wl->conf.tx.basic_rate_5;
2203}
2204
bee0ffec 2205static int wl1271_sta_handle_idle(struct wl1271 *wl, bool idle)
0d58cbff
JO		 2206{
2207 int ret;
2208
2209 if (idle) {
2210 if (test_bit(WL1271_FLAG_JOINED, &wl->flags)) {
2211 ret = wl1271_unjoin(wl);
2212 if (ret < 0)
2213 goto out;
2214 }
e0fe371b 2215 wl->rate_set = wl1271_tx_min_rate_get(wl);
79b223f4 2216 ret = wl1271_acx_sta_rate_policies(wl);
0d58cbff
JO		 2217 if (ret < 0)
2218 goto out;
2219 ret = wl1271_acx_keep_alive_config(
2220 wl, CMD_TEMPL_KLV_IDX_NULL_DATA,
2221 ACX_KEEP_ALIVE_TPL_INVALID);
2222 if (ret < 0)
2223 goto out;
2224 set_bit(WL1271_FLAG_IDLE, &wl->flags);
2225 } else {
2226 /* increment the session counter */
2227 wl->session_counter++;
2228 if (wl->session_counter >= SESSION_COUNTER_MAX)
2229 wl->session_counter = 0;
33c2c06c
LC		 2230
2231 /* The current firmware only supports sched_scan in idle */
2232 if (wl->sched_scanning) {
2233 wl1271_scan_sched_scan_stop(wl);
2234 ieee80211_sched_scan_stopped(wl->hw);
2235 }
2236
0d58cbff
JO		 2237 ret = wl1271_dummy_join(wl);
2238 if (ret < 0)
2239 goto out;
2240 clear_bit(WL1271_FLAG_IDLE, &wl->flags);
2241 }
2242
2243out:
2244 return ret;
2245}
2246
f5fc0f86
LC		 2247static int wl1271_op_config(struct ieee80211_hw *hw, u32 changed)
2248{
2249 struct wl1271 *wl = hw->priv;
2250 struct ieee80211_conf *conf = &hw->conf;
2251 int channel, ret = 0;
bee0ffec 2252 bool is_ap;
f5fc0f86
LC		 2253
2254 channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
2255
bee0ffec
AN		 2256 wl1271_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d %s"
2257 " changed 0x%x",
f5fc0f86
LC		 2258 channel,
2259 conf->flags & IEEE80211_CONF_PS ? "on" : "off",
c7f43e45 2260 conf->power_level,
bee0ffec
AN		 2261 conf->flags & IEEE80211_CONF_IDLE ? "idle" : "in use",
2262 changed);
f5fc0f86 2263
781608c4
JO		 2264 /*
2265 * mac80211 will go to idle nearly immediately after transmitting some
2266 * frames, such as the deauth. To make sure those frames reach the air,
2267 * wait here until the TX queue is fully flushed.
2268 */
2269 if ((changed & IEEE80211_CONF_CHANGE_IDLE) &&
2270 (conf->flags & IEEE80211_CONF_IDLE))
2271 wl1271_tx_flush(wl);
2272
f5fc0f86
LC		 2273 mutex_lock(&wl->mutex);
2274
f8d9802f 2275 if (unlikely(wl->state == WL1271_STATE_OFF)) {
17e672d6
AN		 2276 /* we support configuring the channel and band while off */
2277 if ((changed & IEEE80211_CONF_CHANGE_CHANNEL)) {
2278 wl->band = conf->channel->band;
2279 wl->channel = channel;
2280 }
2281
097f8821
AN		 2282 if ((changed & IEEE80211_CONF_CHANGE_POWER))
2283 wl->power_level = conf->power_level;
2284
2c10bb9c 2285 goto out;
f8d9802f 2286 }
8a5a37a6 2287
bee0ffec
AN		 2288 is_ap = (wl->bss_type == BSS_TYPE_AP_BSS);
2289
a620865e 2290 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 2291 if (ret < 0)
2292 goto out;
2293
ebba60c6 2294 /* if the channel changes while joined, join again */
69e5434c
JO		 2295 if (changed & IEEE80211_CONF_CHANGE_CHANNEL &&
2296 ((wl->band != conf->channel->band) ||
2297 (wl->channel != channel))) {
ebba60c6
JO		 2298 wl->band = conf->channel->band;
2299 wl->channel = channel;
2300
bee0ffec
AN		 2301 if (!is_ap) {
2302 /*
2303 * FIXME: the mac80211 should really provide a fixed
2304 * rate to use here. for now, just use the smallest
2305 * possible rate for the band as a fixed rate for
2306 * association frames and other control messages.
2307 */
2308 if (!test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags))
2309 wl1271_set_band_rate(wl);
2310
2311 wl->basic_rate = wl1271_tx_min_rate_get(wl);
2312 ret = wl1271_acx_sta_rate_policies(wl);
ebba60c6 2313 if (ret < 0)
bee0ffec 2314 wl1271_warning("rate policy for channel "
ebba60c6 2315 "failed %d", ret);
bee0ffec
AN		 2316
2317 if (test_bit(WL1271_FLAG_JOINED, &wl->flags)) {
2318 ret = wl1271_join(wl, false);
2319 if (ret < 0)
2320 wl1271_warning("cmd join on channel "
2321 "failed %d", ret);
2322 }
ebba60c6
JO		 2323 }
2324 }
2325
bee0ffec
AN		 2326 if (changed & IEEE80211_CONF_CHANGE_IDLE && !is_ap) {
2327 ret = wl1271_sta_handle_idle(wl,
2328 conf->flags & IEEE80211_CONF_IDLE);
0d58cbff
JO		 2329 if (ret < 0)
2330 wl1271_warning("idle mode change failed %d", ret);
f5fc0f86
LC		 2331 }
2332
90494a90
JO		 2333 /*
2334 * if mac80211 changes the PSM mode, make sure the mode is not
2335 * incorrectly changed after the pspoll failure active window.
2336 */
2337 if (changed & IEEE80211_CONF_CHANGE_PS)
2338 clear_bit(WL1271_FLAG_PSPOLL_FAILURE, &wl->flags);
2339
71449f8d
JO		 2340 if (conf->flags & IEEE80211_CONF_PS &&
2341 !test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) {
2342 set_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags);
f5fc0f86
LC		 2343
2344 /*
2345 * We enter PSM only if we're already associated.
2346 * If we're not, we'll enter it when joining an SSID,
2347 * through the bss_info_changed() hook.
2348 */
830fb67b 2349 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags)) {
18f8d468 2350 wl1271_debug(DEBUG_PSM, "psm enabled");
d8c42c0c 2351 ret = wl1271_ps_set_mode(wl, STATION_POWER_SAVE_MODE,
8eab7b47 2352 wl->basic_rate, true);
af5e084b 2353 }
f5fc0f86 2354 } else if (!(conf->flags & IEEE80211_CONF_PS) &&
71449f8d 2355 test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) {
18f8d468 2356 wl1271_debug(DEBUG_PSM, "psm disabled");
f5fc0f86 2357
71449f8d 2358 clear_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags);
f5fc0f86 2359
71449f8d 2360 if (test_bit(WL1271_FLAG_PSM, &wl->flags))
d8c42c0c 2361 ret = wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE,
8eab7b47 2362 wl->basic_rate, true);
f5fc0f86
LC		 2363 }
2364
2365 if (conf->power_level != wl->power_level) {
2366 ret = wl1271_acx_tx_power(wl, conf->power_level);
2367 if (ret < 0)
c6317a54 2368 goto out_sleep;
f5fc0f86
LC		 2369
2370 wl->power_level = conf->power_level;
2371 }
2372
2373out_sleep:
2374 wl1271_ps_elp_sleep(wl);
2375
2376out:
2377 mutex_unlock(&wl->mutex);
2378
2379 return ret;
2380}
2381
b54853f1
JO		 2382struct wl1271_filter_params {
2383 bool enabled;
2384 int mc_list_length;
2385 u8 mc_list[ACX_MC_ADDRESS_GROUP_MAX][ETH_ALEN];
2386};
2387
22bedad3
JP		 2388static u64 wl1271_op_prepare_multicast(struct ieee80211_hw *hw,
2389 struct netdev_hw_addr_list *mc_list)
c87dec9f 2390{
c87dec9f 2391 struct wl1271_filter_params *fp;
22bedad3 2392 struct netdev_hw_addr *ha;
2c10bb9c 2393 struct wl1271 *wl = hw->priv;
c87dec9f 2394
2c10bb9c
SD		 2395 if (unlikely(wl->state == WL1271_STATE_OFF))
2396 return 0;
c87dec9f 2397
74441130 2398 fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
c87dec9f
JO		 2399 if (!fp) {
2400 wl1271_error("Out of memory setting filters.");
2401 return 0;
2402 }
2403
2404 /* update multicast filtering parameters */
c87dec9f 2405 fp->mc_list_length = 0;
22bedad3
JP		 2406 if (netdev_hw_addr_list_count(mc_list) > ACX_MC_ADDRESS_GROUP_MAX) {
2407 fp->enabled = false;
2408 } else {
2409 fp->enabled = true;
2410 netdev_hw_addr_list_for_each(ha, mc_list) {
c87dec9f 2411 memcpy(fp->mc_list[fp->mc_list_length],
22bedad3 2412 ha->addr, ETH_ALEN);
c87dec9f 2413 fp->mc_list_length++;
22bedad3 2414 }
c87dec9f
JO		 2415 }
2416
b54853f1 2417 return (u64)(unsigned long)fp;
c87dec9f 2418}
f5fc0f86 2419
b54853f1
JO		 2420#define WL1271_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
2421 FIF_ALLMULTI | \
2422 FIF_FCSFAIL | \
2423 FIF_BCN_PRBRESP_PROMISC | \
2424 FIF_CONTROL | \
2425 FIF_OTHER_BSS)
2426
f5fc0f86
LC		 2427static void wl1271_op_configure_filter(struct ieee80211_hw *hw,
2428 unsigned int changed,
c87dec9f 2429 unsigned int *total, u64 multicast)
f5fc0f86 2430{
b54853f1 2431 struct wl1271_filter_params *fp = (void *)(unsigned long)multicast;
f5fc0f86 2432 struct wl1271 *wl = hw->priv;
b54853f1 2433 int ret;
f5fc0f86 2434
7d057869
AN		 2435 wl1271_debug(DEBUG_MAC80211, "mac80211 configure filter changed %x"
2436 " total %x", changed, *total);
f5fc0f86 2437
b54853f1
JO		 2438 mutex_lock(&wl->mutex);
2439
2c10bb9c
SD		 2440 *total &= WL1271_SUPPORTED_FILTERS;
2441 changed &= WL1271_SUPPORTED_FILTERS;
2442
2443 if (unlikely(wl->state == WL1271_STATE_OFF))
b54853f1
JO		 2444 goto out;
2445
a620865e 2446 ret = wl1271_ps_elp_wakeup(wl);
b54853f1
JO		 2447 if (ret < 0)
2448 goto out;
2449
7d057869
AN		 2450 if (wl->bss_type != BSS_TYPE_AP_BSS) {
2451 if (*total & FIF_ALLMULTI)
2452 ret = wl1271_acx_group_address_tbl(wl, false, NULL, 0);
2453 else if (fp)
2454 ret = wl1271_acx_group_address_tbl(wl, fp->enabled,
2455 fp->mc_list,
2456 fp->mc_list_length);
2457 if (ret < 0)
2458 goto out_sleep;
2459 }
f5fc0f86 2460
b54853f1
JO		 2461 /* determine, whether supported filter values have changed */
2462 if (changed == 0)
2463 goto out_sleep;
c87dec9f 2464
14b228a0
JO		 2465 /* configure filters */
2466 wl->filters = *total;
2467 wl1271_configure_filters(wl, 0);
2468
b54853f1
JO		 2469 /* apply configured filters */
2470 ret = wl1271_acx_rx_config(wl, wl->rx_config, wl->rx_filter);
2471 if (ret < 0)
2472 goto out_sleep;
2473
2474out_sleep:
2475 wl1271_ps_elp_sleep(wl);
2476
2477out:
2478 mutex_unlock(&wl->mutex);
14b228a0 2479 kfree(fp);
f5fc0f86
LC		 2480}
2481
7f179b46
AN		 2482static int wl1271_record_ap_key(struct wl1271 *wl, u8 id, u8 key_type,
2483 u8 key_size, const u8 *key, u8 hlid, u32 tx_seq_32,
2484 u16 tx_seq_16)
2485{
2486 struct wl1271_ap_key *ap_key;
2487 int i;
2488
2489 wl1271_debug(DEBUG_CRYPT, "record ap key id %d", (int)id);
2490
2491 if (key_size > MAX_KEY_SIZE)
2492 return -EINVAL;
2493
2494 /*
2495 * Find next free entry in ap_keys. Also check we are not replacing
2496 * an existing key.
2497 */
2498 for (i = 0; i < MAX_NUM_KEYS; i++) {
2499 if (wl->recorded_ap_keys[i] == NULL)
2500 break;
2501
2502 if (wl->recorded_ap_keys[i]->id == id) {
2503 wl1271_warning("trying to record key replacement");
2504 return -EINVAL;
2505 }
2506 }
2507
2508 if (i == MAX_NUM_KEYS)
2509 return -EBUSY;
2510
2511 ap_key = kzalloc(sizeof(*ap_key), GFP_KERNEL);
2512 if (!ap_key)
2513 return -ENOMEM;
2514
2515 ap_key->id = id;
2516 ap_key->key_type = key_type;
2517 ap_key->key_size = key_size;
2518 memcpy(ap_key->key, key, key_size);
2519 ap_key->hlid = hlid;
2520 ap_key->tx_seq_32 = tx_seq_32;
2521 ap_key->tx_seq_16 = tx_seq_16;
2522
2523 wl->recorded_ap_keys[i] = ap_key;
2524 return 0;
2525}
2526
2527static void wl1271_free_ap_keys(struct wl1271 *wl)
2528{
2529 int i;
2530
2531 for (i = 0; i < MAX_NUM_KEYS; i++) {
2532 kfree(wl->recorded_ap_keys[i]);
2533 wl->recorded_ap_keys[i] = NULL;
2534 }
2535}
2536
2537static int wl1271_ap_init_hwenc(struct wl1271 *wl)
2538{
2539 int i, ret = 0;
2540 struct wl1271_ap_key *key;
2541 bool wep_key_added = false;
2542
2543 for (i = 0; i < MAX_NUM_KEYS; i++) {
2544 if (wl->recorded_ap_keys[i] == NULL)
2545 break;
2546
2547 key = wl->recorded_ap_keys[i];
2548 ret = wl1271_cmd_set_ap_key(wl, KEY_ADD_OR_REPLACE,
2549 key->id, key->key_type,
2550 key->key_size, key->key,
2551 key->hlid, key->tx_seq_32,
2552 key->tx_seq_16);
2553 if (ret < 0)
2554 goto out;
2555
2556 if (key->key_type == KEY_WEP)
2557 wep_key_added = true;
2558 }
2559
2560 if (wep_key_added) {
2561 ret = wl1271_cmd_set_ap_default_wep_key(wl, wl->default_key);
2562 if (ret < 0)
2563 goto out;
2564 }
2565
2566out:
2567 wl1271_free_ap_keys(wl);
2568 return ret;
2569}
2570
2571static int wl1271_set_key(struct wl1271 *wl, u16 action, u8 id, u8 key_type,
2572 u8 key_size, const u8 *key, u32 tx_seq_32,
2573 u16 tx_seq_16, struct ieee80211_sta *sta)
2574{
2575 int ret;
2576 bool is_ap = (wl->bss_type == BSS_TYPE_AP_BSS);
2577
2578 if (is_ap) {
2579 struct wl1271_station *wl_sta;
2580 u8 hlid;
2581
2582 if (sta) {
2583 wl_sta = (struct wl1271_station *)sta->drv_priv;
2584 hlid = wl_sta->hlid;
2585 } else {
2586 hlid = WL1271_AP_BROADCAST_HLID;
2587 }
2588
2589 if (!test_bit(WL1271_FLAG_AP_STARTED, &wl->flags)) {
2590 /*
2591 * We do not support removing keys after AP shutdown.
2592 * Pretend we do to make mac80211 happy.
2593 */
2594 if (action != KEY_ADD_OR_REPLACE)
2595 return 0;
2596
2597 ret = wl1271_record_ap_key(wl, id,
2598 key_type, key_size,
2599 key, hlid, tx_seq_32,
2600 tx_seq_16);
2601 } else {
2602 ret = wl1271_cmd_set_ap_key(wl, action,
2603 id, key_type, key_size,
2604 key, hlid, tx_seq_32,
2605 tx_seq_16);
2606 }
2607
2608 if (ret < 0)
2609 return ret;
2610 } else {
2611 const u8 *addr;
2612 static const u8 bcast_addr[ETH_ALEN] = {
2613 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
2614 };
2615
2616 addr = sta ? sta->addr : bcast_addr;
2617
2618 if (is_zero_ether_addr(addr)) {
2619 /* We dont support TX only encryption */
2620 return -EOPNOTSUPP;
2621 }
2622
2623 /* The wl1271 does not allow to remove unicast keys - they
2624 will be cleared automatically on next CMD_JOIN. Ignore the
2625 request silently, as we dont want the mac80211 to emit
2626 an error message. */
2627 if (action == KEY_REMOVE && !is_broadcast_ether_addr(addr))
2628 return 0;
2629
2630 ret = wl1271_cmd_set_sta_key(wl, action,
2631 id, key_type, key_size,
2632 key, addr, tx_seq_32,
2633 tx_seq_16);
2634 if (ret < 0)
2635 return ret;
2636
2637 /* the default WEP key needs to be configured at least once */
2638 if (key_type == KEY_WEP) {
2639 ret = wl1271_cmd_set_sta_default_wep_key(wl,
2640 wl->default_key);
2641 if (ret < 0)
2642 return ret;
2643 }
2644 }
2645
2646 return 0;
2647}
2648
f5fc0f86
LC		 2649static int wl1271_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
2650 struct ieee80211_vif *vif,
2651 struct ieee80211_sta *sta,
2652 struct ieee80211_key_conf *key_conf)
2653{
2654 struct wl1271 *wl = hw->priv;
f5fc0f86 2655 int ret;
ac4e4ce5
JO		 2656 u32 tx_seq_32 = 0;
2657 u16 tx_seq_16 = 0;
f5fc0f86
LC		 2658 u8 key_type;
2659
f5fc0f86
LC		 2660 wl1271_debug(DEBUG_MAC80211, "mac80211 set key");
2661
7f179b46 2662 wl1271_debug(DEBUG_CRYPT, "CMD: 0x%x sta: %p", cmd, sta);
f5fc0f86 2663 wl1271_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x",
97359d12 2664 key_conf->cipher, key_conf->keyidx,
f5fc0f86
LC		 2665 key_conf->keylen, key_conf->flags);
2666 wl1271_dump(DEBUG_CRYPT, "KEY: ", key_conf->key, key_conf->keylen);
2667
f5fc0f86
LC		 2668 mutex_lock(&wl->mutex);
2669
f8d9802f
JO		 2670 if (unlikely(wl->state == WL1271_STATE_OFF)) {
2671 ret = -EAGAIN;
2672 goto out_unlock;
2673 }
2674
a620865e 2675 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 2676 if (ret < 0)
2677 goto out_unlock;
2678
97359d12
JB		 2679 switch (key_conf->cipher) {
2680 case WLAN_CIPHER_SUITE_WEP40:
2681 case WLAN_CIPHER_SUITE_WEP104:
f5fc0f86
LC		 2682 key_type = KEY_WEP;
2683
2684 key_conf->hw_key_idx = key_conf->keyidx;
2685 break;
97359d12 2686 case WLAN_CIPHER_SUITE_TKIP:
f5fc0f86
LC		 2687 key_type = KEY_TKIP;
2688
2689 key_conf->hw_key_idx = key_conf->keyidx;
04e36fc5
JO		 2690 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
2691 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
f5fc0f86 2692 break;
97359d12 2693 case WLAN_CIPHER_SUITE_CCMP:
f5fc0f86
LC		 2694 key_type = KEY_AES;
2695
2696 key_conf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
04e36fc5
JO		 2697 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
2698 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
f5fc0f86 2699 break;
7a55724e
JO		 2700 case WL1271_CIPHER_SUITE_GEM:
2701 key_type = KEY_GEM;
2702 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
2703 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
2704 break;
f5fc0f86 2705 default:
97359d12 2706 wl1271_error("Unknown key algo 0x%x", key_conf->cipher);
f5fc0f86
LC		 2707
2708 ret = -EOPNOTSUPP;
2709 goto out_sleep;
2710 }
2711
2712 switch (cmd) {
2713 case SET_KEY:
7f179b46
AN		 2714 ret = wl1271_set_key(wl, KEY_ADD_OR_REPLACE,
2715 key_conf->keyidx, key_type,
2716 key_conf->keylen, key_conf->key,
2717 tx_seq_32, tx_seq_16, sta);
f5fc0f86
LC		 2718 if (ret < 0) {
2719 wl1271_error("Could not add or replace key");
2720 goto out_sleep;
2721 }
2722 break;
2723
2724 case DISABLE_KEY:
7f179b46
AN		 2725 ret = wl1271_set_key(wl, KEY_REMOVE,
2726 key_conf->keyidx, key_type,
2727 key_conf->keylen, key_conf->key,
2728 0, 0, sta);
f5fc0f86
LC		 2729 if (ret < 0) {
2730 wl1271_error("Could not remove key");
2731 goto out_sleep;
2732 }
2733 break;
2734
2735 default:
2736 wl1271_error("Unsupported key cmd 0x%x", cmd);
2737 ret = -EOPNOTSUPP;
f5fc0f86
LC		 2738 break;
2739 }
2740
2741out_sleep:
2742 wl1271_ps_elp_sleep(wl);
2743
2744out_unlock:
2745 mutex_unlock(&wl->mutex);
2746
f5fc0f86
LC		 2747 return ret;
2748}
2749
2750static int wl1271_op_hw_scan(struct ieee80211_hw *hw,
a060bbfe 2751 struct ieee80211_vif *vif,
f5fc0f86
LC		 2752 struct cfg80211_scan_request *req)
2753{
2754 struct wl1271 *wl = hw->priv;
2755 int ret;
2756 u8 *ssid = NULL;
abb0b3bf 2757 size_t len = 0;
f5fc0f86
LC		 2758
2759 wl1271_debug(DEBUG_MAC80211, "mac80211 hw scan");
2760
2761 if (req->n_ssids) {
2762 ssid = req->ssids[0].ssid;
abb0b3bf 2763 len = req->ssids[0].ssid_len;
f5fc0f86
LC		 2764 }
2765
2766 mutex_lock(&wl->mutex);
2767
b739a42c
JO		 2768 if (wl->state == WL1271_STATE_OFF) {
2769 /*
2770 * We cannot return -EBUSY here because cfg80211 will expect
2771 * a call to ieee80211_scan_completed if we do - in this case
2772 * there won't be any call.
2773 */
2774 ret = -EAGAIN;
2775 goto out;
2776 }
2777
a620865e 2778 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 2779 if (ret < 0)
2780 goto out;
2781
5924f89d 2782 ret = wl1271_scan(hw->priv, ssid, len, req);
f5fc0f86
LC		 2783
2784 wl1271_ps_elp_sleep(wl);
2785
2786out:
2787 mutex_unlock(&wl->mutex);
2788
2789 return ret;
2790}
2791
73ecce31
EP		 2792static void wl1271_op_cancel_hw_scan(struct ieee80211_hw *hw,
2793 struct ieee80211_vif *vif)
2794{
2795 struct wl1271 *wl = hw->priv;
2796 int ret;
2797
2798 wl1271_debug(DEBUG_MAC80211, "mac80211 cancel hw scan");
2799
2800 mutex_lock(&wl->mutex);
2801
2802 if (wl->state == WL1271_STATE_OFF)
2803 goto out;
2804
2805 if (wl->scan.state == WL1271_SCAN_STATE_IDLE)
2806 goto out;
2807
2808 ret = wl1271_ps_elp_wakeup(wl);
2809 if (ret < 0)
2810 goto out;
2811
2812 if (wl->scan.state != WL1271_SCAN_STATE_DONE) {
2813 ret = wl1271_scan_stop(wl);
2814 if (ret < 0)
2815 goto out_sleep;
2816 }
2817 wl->scan.state = WL1271_SCAN_STATE_IDLE;
2818 memset(wl->scan.scanned_ch, 0, sizeof(wl->scan.scanned_ch));
2819 wl->scan.req = NULL;
2820 ieee80211_scan_completed(wl->hw, true);
2821
2822out_sleep:
2823 wl1271_ps_elp_sleep(wl);
2824out:
2825 mutex_unlock(&wl->mutex);
2826
2827 cancel_delayed_work_sync(&wl->scan_complete_work);
2828}
2829
33c2c06c
LC		 2830static int wl1271_op_sched_scan_start(struct ieee80211_hw *hw,
2831 struct ieee80211_vif *vif,
2832 struct cfg80211_sched_scan_request *req,
2833 struct ieee80211_sched_scan_ies *ies)
2834{
2835 struct wl1271 *wl = hw->priv;
2836 int ret;
2837
2838 wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_start");
2839
2840 mutex_lock(&wl->mutex);
2841
2842 ret = wl1271_ps_elp_wakeup(wl);
2843 if (ret < 0)
2844 goto out;
2845
2846 ret = wl1271_scan_sched_scan_config(wl, req, ies);
2847 if (ret < 0)
2848 goto out_sleep;
2849
2850 ret = wl1271_scan_sched_scan_start(wl);
2851 if (ret < 0)
2852 goto out_sleep;
2853
2854 wl->sched_scanning = true;
2855
2856out_sleep:
2857 wl1271_ps_elp_sleep(wl);
2858out:
2859 mutex_unlock(&wl->mutex);
2860 return ret;
2861}
2862
2863static void wl1271_op_sched_scan_stop(struct ieee80211_hw *hw,
2864 struct ieee80211_vif *vif)
2865{
2866 struct wl1271 *wl = hw->priv;
2867 int ret;
2868
2869 wl1271_debug(DEBUG_MAC80211, "wl1271_op_sched_scan_stop");
2870
2871 mutex_lock(&wl->mutex);
2872
2873 ret = wl1271_ps_elp_wakeup(wl);
2874 if (ret < 0)
2875 goto out;
2876
2877 wl1271_scan_sched_scan_stop(wl);
2878
2879 wl1271_ps_elp_sleep(wl);
2880out:
2881 mutex_unlock(&wl->mutex);
2882}
2883
68d069c4
AN		 2884static int wl1271_op_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
2885{
2886 struct wl1271 *wl = hw->priv;
2887 int ret = 0;
2888
2889 mutex_lock(&wl->mutex);
2890
2891 if (unlikely(wl->state == WL1271_STATE_OFF)) {
2892 ret = -EAGAIN;
2893 goto out;
2894 }
2895
a620865e 2896 ret = wl1271_ps_elp_wakeup(wl);
68d069c4
AN		 2897 if (ret < 0)
2898 goto out;
2899
5f704d18 2900 ret = wl1271_acx_frag_threshold(wl, value);
68d069c4
AN		 2901 if (ret < 0)
2902 wl1271_warning("wl1271_op_set_frag_threshold failed: %d", ret);
2903
2904 wl1271_ps_elp_sleep(wl);
2905
2906out:
2907 mutex_unlock(&wl->mutex);
2908
2909 return ret;
2910}
2911
f5fc0f86
LC		 2912static int wl1271_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2913{
2914 struct wl1271 *wl = hw->priv;
aecb0565 2915 int ret = 0;
f5fc0f86
LC		 2916
2917 mutex_lock(&wl->mutex);
2918
f8d9802f
JO		 2919 if (unlikely(wl->state == WL1271_STATE_OFF)) {
2920 ret = -EAGAIN;
aecb0565 2921 goto out;
f8d9802f 2922 }
aecb0565 2923
a620865e 2924 ret = wl1271_ps_elp_wakeup(wl);
f5fc0f86
LC		 2925 if (ret < 0)
2926 goto out;
2927
5f704d18 2928 ret = wl1271_acx_rts_threshold(wl, value);
f5fc0f86
LC		 2929 if (ret < 0)
2930 wl1271_warning("wl1271_op_set_rts_threshold failed: %d", ret);
2931
2932 wl1271_ps_elp_sleep(wl);
2933
2934out:
2935 mutex_unlock(&wl->mutex);
2936
2937 return ret;
2938}
2939
e78a287a 2940static int wl1271_ssid_set(struct wl1271 *wl, struct sk_buff *skb,
2f6724b2 2941 int offset)
30240fc7 2942{
889cb360
EP		 2943 u8 ssid_len;
2944 const u8 *ptr = cfg80211_find_ie(WLAN_EID_SSID, skb->data + offset,
2945 skb->len - offset);
30240fc7 2946
889cb360
EP		 2947 if (!ptr) {
2948 wl1271_error("No SSID in IEs!");
2949 return -ENOENT;
2950 }
2951
2952 ssid_len = ptr[1];
2953 if (ssid_len > IEEE80211_MAX_SSID_LEN) {
2954 wl1271_error("SSID is too long!");
2955 return -EINVAL;
30240fc7 2956 }
e78a287a 2957
889cb360
EP		 2958 wl->ssid_len = ssid_len;
2959 memcpy(wl->ssid, ptr+2, ssid_len);
2960 return 0;
30240fc7
JO		 2961}
2962
e78a287a 2963static int wl1271_bss_erp_info_changed(struct wl1271 *wl,
f5fc0f86
LC		 2964 struct ieee80211_bss_conf *bss_conf,
2965 u32 changed)
2966{
e78a287a 2967 int ret = 0;
f5fc0f86 2968
e78a287a
AN		 2969 if (changed & BSS_CHANGED_ERP_SLOT) {
2970 if (bss_conf->use_short_slot)
2971 ret = wl1271_acx_slot(wl, SLOT_TIME_SHORT);
2972 else
2973 ret = wl1271_acx_slot(wl, SLOT_TIME_LONG);
2974 if (ret < 0) {
2975 wl1271_warning("Set slot time failed %d", ret);
2976 goto out;
2977 }
2978 }
f5fc0f86 2979
e78a287a
AN		 2980 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
2981 if (bss_conf->use_short_preamble)
2982 wl1271_acx_set_preamble(wl, ACX_PREAMBLE_SHORT);
2983 else
2984 wl1271_acx_set_preamble(wl, ACX_PREAMBLE_LONG);
2985 }
f5fc0f86 2986
e78a287a
AN		 2987 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
2988 if (bss_conf->use_cts_prot)
2989 ret = wl1271_acx_cts_protect(wl, CTSPROTECT_ENABLE);
2990 else
2991 ret = wl1271_acx_cts_protect(wl, CTSPROTECT_DISABLE);
2992 if (ret < 0) {
2993 wl1271_warning("Set ctsprotect failed %d", ret);
2994 goto out;
2995 }
2996 }
f8d9802f 2997
e78a287a
AN		 2998out:
2999 return ret;
3000}
f5fc0f86 3001
e78a287a
AN		 3002static int wl1271_bss_beacon_info_changed(struct wl1271 *wl,
3003 struct ieee80211_vif *vif,
3004 struct ieee80211_bss_conf *bss_conf,
3005 u32 changed)
3006{
3007 bool is_ap = (wl->bss_type == BSS_TYPE_AP_BSS);
3008 int ret = 0;
3009
3010 if ((changed & BSS_CHANGED_BEACON_INT)) {
3011 wl1271_debug(DEBUG_MASTER, "beacon interval updated: %d",
60e84c2e
JO		 3012 bss_conf->beacon_int);
3013
3014 wl->beacon_int = bss_conf->beacon_int;
60e84c2e
JO		 3015 }
3016
e78a287a
AN		 3017 if ((changed & BSS_CHANGED_BEACON)) {
3018 struct ieee80211_hdr *hdr;
3019 int ieoffset = offsetof(struct ieee80211_mgmt,
3020 u.beacon.variable);
3021 struct sk_buff *beacon = ieee80211_beacon_get(wl->hw, vif);
3022 u16 tmpl_id;
3023
3024 if (!beacon)
3025 goto out;
3026
3027 wl1271_debug(DEBUG_MASTER, "beacon updated");
3028
3029 ret = wl1271_ssid_set(wl, beacon, ieoffset);
3030 if (ret < 0) {
3031 dev_kfree_skb(beacon);
3032 goto out;
3033 }
3034 tmpl_id = is_ap ? CMD_TEMPL_AP_BEACON :
3035 CMD_TEMPL_BEACON;
3036 ret = wl1271_cmd_template_set(wl, tmpl_id,
3037 beacon->data,
3038 beacon->len, 0,
3039 wl1271_tx_min_rate_get(wl));
3040 if (ret < 0) {
3041 dev_kfree_skb(beacon);
3042 goto out;
3043 }
3044
3045 hdr = (struct ieee80211_hdr *) beacon->data;
3046 hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3047 IEEE80211_STYPE_PROBE_RESP);
3048
3049 tmpl_id = is_ap ? CMD_TEMPL_AP_PROBE_RESPONSE :
3050 CMD_TEMPL_PROBE_RESPONSE;
3051 ret = wl1271_cmd_template_set(wl,
3052 tmpl_id,
3053 beacon->data,
3054 beacon->len, 0,
3055 wl1271_tx_min_rate_get(wl));
3056 dev_kfree_skb(beacon);
3057 if (ret < 0)
3058 goto out;
3059 }
3060
3061out:
3062 return ret;
3063}
3064
3065/* AP mode changes */
3066static void wl1271_bss_info_changed_ap(struct wl1271 *wl,
3067 struct ieee80211_vif *vif,
3068 struct ieee80211_bss_conf *bss_conf,
3069 u32 changed)
3070{
3071 int ret = 0;
e0d8bbf0 3072
e78a287a
AN		 3073 if ((changed & BSS_CHANGED_BASIC_RATES)) {
3074 u32 rates = bss_conf->basic_rates;
5da11dcd 3075
e78a287a
AN		 3076 wl->basic_rate_set = wl1271_tx_enabled_rates_get(wl, rates);
3077 wl->basic_rate = wl1271_tx_min_rate_get(wl);
70f47424
AN		 3078
3079 ret = wl1271_init_ap_rates(wl);
e78a287a 3080 if (ret < 0) {
70f47424 3081 wl1271_error("AP rate policy change failed %d", ret);
e78a287a
AN		 3082 goto out;
3083 }
c45a85b5
AN		 3084
3085 ret = wl1271_ap_init_templates(wl);
3086 if (ret < 0)
3087 goto out;
e78a287a 3088 }
2f6724b2 3089
e78a287a
AN		 3090 ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf, changed);
3091 if (ret < 0)
3092 goto out;
30240fc7 3093
e78a287a
AN		 3094 if ((changed & BSS_CHANGED_BEACON_ENABLED)) {
3095 if (bss_conf->enable_beacon) {
3096 if (!test_bit(WL1271_FLAG_AP_STARTED, &wl->flags)) {
3097 ret = wl1271_cmd_start_bss(wl);
3098 if (ret < 0)
3099 goto out;
e0d8bbf0 3100
e78a287a
AN		 3101 set_bit(WL1271_FLAG_AP_STARTED, &wl->flags);
3102 wl1271_debug(DEBUG_AP, "started AP");
7f179b46
AN		 3103
3104 ret = wl1271_ap_init_hwenc(wl);
3105 if (ret < 0)
3106 goto out;
e0d8bbf0 3107 }
e78a287a
AN		 3108 } else {
3109 if (test_bit(WL1271_FLAG_AP_STARTED, &wl->flags)) {
3110 ret = wl1271_cmd_stop_bss(wl);
3111 if (ret < 0)
3112 goto out;
e0d8bbf0 3113
e78a287a
AN		 3114 clear_bit(WL1271_FLAG_AP_STARTED, &wl->flags);
3115 wl1271_debug(DEBUG_AP, "stopped AP");
3116 }
3117 }
3118 }
e0d8bbf0 3119
e78a287a
AN		 3120 ret = wl1271_bss_erp_info_changed(wl, bss_conf, changed);
3121 if (ret < 0)
3122 goto out;
3123out:
3124 return;
3125}
8bf29b0e 3126
e78a287a
AN		 3127/* STA/IBSS mode changes */
3128static void wl1271_bss_info_changed_sta(struct wl1271 *wl,
3129 struct ieee80211_vif *vif,
3130 struct ieee80211_bss_conf *bss_conf,
3131 u32 changed)
3132{
3133 bool do_join = false, set_assoc = false;
3134 bool is_ibss = (wl->bss_type == BSS_TYPE_IBSS);
72c2d9e5 3135 u32 sta_rate_set = 0;
e78a287a 3136 int ret;
2d6e4e76 3137 struct ieee80211_sta *sta;
a100885d
AN		 3138 bool sta_exists = false;
3139 struct ieee80211_sta_ht_cap sta_ht_cap;
e78a287a
AN		 3140
3141 if (is_ibss) {
3142 ret = wl1271_bss_beacon_info_changed(wl, vif, bss_conf,
3143 changed);
3144 if (ret < 0)
3145 goto out;
e0d8bbf0
JO		 3146 }
3147
e78a287a
AN		 3148 if ((changed & BSS_CHANGED_BEACON_INT) && is_ibss)
3149 do_join = true;
3150
3151 /* Need to update the SSID (for filtering etc) */
3152 if ((changed & BSS_CHANGED_BEACON) && is_ibss)
3153 do_join = true;
3154
3155 if ((changed & BSS_CHANGED_BEACON_ENABLED) && is_ibss) {
5da11dcd
JO		 3156 wl1271_debug(DEBUG_ADHOC, "ad-hoc beaconing: %s",
3157 bss_conf->enable_beacon ? "enabled" : "disabled");
3158
3159 if (bss_conf->enable_beacon)
3160 wl->set_bss_type = BSS_TYPE_IBSS;
3161 else
3162 wl->set_bss_type = BSS_TYPE_STA_BSS;
3163 do_join = true;
3164 }
3165
e78a287a 3166 if ((changed & BSS_CHANGED_CQM)) {
00236aed
JO		 3167 bool enable = false;
3168 if (bss_conf->cqm_rssi_thold)
3169 enable = true;
3170 ret = wl1271_acx_rssi_snr_trigger(wl, enable,
3171 bss_conf->cqm_rssi_thold,
3172 bss_conf->cqm_rssi_hyst);
3173 if (ret < 0)
3174 goto out;
3175 wl->rssi_thold = bss_conf->cqm_rssi_thold;
3176 }
3177
30240fc7
JO		 3178 if ((changed & BSS_CHANGED_BSSID) &&
3179 /*
3180 * Now we know the correct bssid, so we send a new join command
3181 * and enable the BSSID filter
3182 */
3183 memcmp(wl->bssid, bss_conf->bssid, ETH_ALEN)) {
e78a287a 3184 memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN);
a0cb7be4 3185
fa287b8f
EP		 3186 if (!is_zero_ether_addr(wl->bssid)) {
3187 ret = wl1271_cmd_build_null_data(wl);
3188 if (ret < 0)
3189 goto out;
30240fc7 3190
fa287b8f
EP		 3191 ret = wl1271_build_qos_null_data(wl);
3192 if (ret < 0)
3193 goto out;
30240fc7 3194
fa287b8f
EP		 3195 /* filter out all packets not from this BSSID */
3196 wl1271_configure_filters(wl, 0);
14b228a0 3197
fa287b8f
EP		 3198 /* Need to update the BSSID (for filtering etc) */
3199 do_join = true;
3200 }
30240fc7
JO		 3201 }
3202
72c2d9e5
EP		 3203 rcu_read_lock();
3204 sta = ieee80211_find_sta(vif, bss_conf->bssid);
3205 if (sta) {
3206 /* save the supp_rates of the ap */
3207 sta_rate_set = sta->supp_rates[wl->hw->conf.channel->band];
3208 if (sta->ht_cap.ht_supported)
3209 sta_rate_set |=
3210 (sta->ht_cap.mcs.rx_mask[0] << HW_HT_RATES_OFFSET);
a100885d
AN		 3211 sta_ht_cap = sta->ht_cap;
3212 sta_exists = true;
3213 }
3214 rcu_read_unlock();
72c2d9e5 3215
a100885d 3216 if (sta_exists) {
72c2d9e5
EP		 3217 /* handle new association with HT and HT information change */
3218 if ((changed & BSS_CHANGED_HT) &&
3219 (bss_conf->channel_type != NL80211_CHAN_NO_HT)) {
a100885d 3220 ret = wl1271_acx_set_ht_capabilities(wl, &sta_ht_cap,
72c2d9e5
EP		 3221 true);
3222 if (ret < 0) {
3223 wl1271_warning("Set ht cap true failed %d",
3224 ret);
72c2d9e5
EP		 3225 goto out;
3226 }
3227 ret = wl1271_acx_set_ht_information(wl,
3228 bss_conf->ht_operation_mode);
3229 if (ret < 0) {
3230 wl1271_warning("Set ht information failed %d",
3231 ret);
72c2d9e5
EP		 3232 goto out;
3233 }
3234 }
3235 /* handle new association without HT and disassociation */
3236 else if (changed & BSS_CHANGED_ASSOC) {
a100885d 3237 ret = wl1271_acx_set_ht_capabilities(wl, &sta_ht_cap,
72c2d9e5
EP		 3238 false);
3239 if (ret < 0) {
3240 wl1271_warning("Set ht cap false failed %d",
3241 ret);
72c2d9e5
EP		 3242 goto out;
3243 }
3244 }
3245 }
72c2d9e5 3246
e78a287a 3247 if ((changed & BSS_CHANGED_ASSOC)) {
f5fc0f86 3248 if (bss_conf->assoc) {
ebba60c6 3249 u32 rates;
2f6724b2 3250 int ieoffset;
f5fc0f86 3251 wl->aid = bss_conf->aid;
69e5434c 3252 set_assoc = true;
f5fc0f86 3253
90494a90
JO		 3254 wl->ps_poll_failures = 0;
3255
ebba60c6
JO		 3256 /*
3257 * use basic rates from AP, and determine lowest rate
3258 * to use with control frames.
3259 */
3260 rates = bss_conf->basic_rates;
3261 wl->basic_rate_set = wl1271_tx_enabled_rates_get(wl,
3262 rates);
e0fe371b 3263 wl->basic_rate = wl1271_tx_min_rate_get(wl);
72c2d9e5
EP		 3264 if (sta_rate_set)
3265 wl->rate_set = wl1271_tx_enabled_rates_get(wl,
3266 sta_rate_set);
79b223f4 3267 ret = wl1271_acx_sta_rate_policies(wl);
ebba60c6 3268 if (ret < 0)
e78a287a 3269 goto out;
ebba60c6 3270
ae751bab
LC		 3271 /*
3272 * with wl1271, we don't need to update the
3273 * beacon_int and dtim_period, because the firmware
3274 * updates it by itself when the first beacon is
3275 * received after a join.
3276 */
f5fc0f86
LC		 3277 ret = wl1271_cmd_build_ps_poll(wl, wl->aid);
3278 if (ret < 0)
e78a287a 3279 goto out;
f5fc0f86 3280
c2b2d99b 3281 /*
2f6724b2 3282 * Get a template for hardware connection maintenance
c2b2d99b 3283 */
2f6724b2
JO		 3284 dev_kfree_skb(wl->probereq);
3285 wl->probereq = wl1271_cmd_build_ap_probe_req(wl, NULL);
3286 ieoffset = offsetof(struct ieee80211_mgmt,
3287 u.probe_req.variable);
3288 wl1271_ssid_set(wl, wl->probereq, ieoffset);
c2b2d99b 3289
6ccbb92e
JO		 3290 /* enable the connection monitoring feature */
3291 ret = wl1271_acx_conn_monit_params(wl, true);
f5fc0f86 3292 if (ret < 0)
e78a287a 3293 goto out;
f5fc0f86
LC		 3294
3295 /* If we want to go in PSM but we're not there yet */
71449f8d
JO		 3296 if (test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags) &&
3297 !test_bit(WL1271_FLAG_PSM, &wl->flags)) {
e78a287a
AN		 3298 enum wl1271_cmd_ps_mode mode;
3299
f5fc0f86 3300 mode = STATION_POWER_SAVE_MODE;
65cddbf1 3301 ret = wl1271_ps_set_mode(wl, mode,
8eab7b47 3302 wl->basic_rate,
65cddbf1 3303 true);
f5fc0f86 3304 if (ret < 0)
e78a287a 3305 goto out;
f5fc0f86 3306 }
d94cd297
JO		 3307 } else {
3308 /* use defaults when not associated */
30df14d0
EP		 3309 bool was_assoc =
3310 !!test_and_clear_bit(WL1271_FLAG_STA_ASSOCIATED,
3311 &wl->flags);
c2c192ac 3312 clear_bit(WL1271_FLAG_STA_STATE_SENT, &wl->flags);
d94cd297 3313 wl->aid = 0;
6ccbb92e 3314
2f6724b2
JO		 3315 /* free probe-request template */
3316 dev_kfree_skb(wl->probereq);
3317 wl->probereq = NULL;
3318
8d2ef7bd 3319 /* re-enable dynamic ps - just in case */
f532be6d 3320 ieee80211_enable_dyn_ps(wl->vif);
8d2ef7bd 3321
ebba60c6
JO		 3322 /* revert back to minimum rates for the current band */
3323 wl1271_set_band_rate(wl);
e0fe371b 3324 wl->basic_rate = wl1271_tx_min_rate_get(wl);
79b223f4 3325 ret = wl1271_acx_sta_rate_policies(wl);
ebba60c6 3326 if (ret < 0)
e78a287a 3327 goto out;
ebba60c6 3328
6ccbb92e
JO		 3329 /* disable connection monitor features */
3330 ret = wl1271_acx_conn_monit_params(wl, false);
c1899554
JO		 3331
3332 /* Disable the keep-alive feature */
3333 ret = wl1271_acx_keep_alive_mode(wl, false);
6ccbb92e 3334 if (ret < 0)
e78a287a 3335 goto out;
b84a7d3d
JO		 3336
3337 /* restore the bssid filter and go to dummy bssid */
30df14d0
EP		 3338 if (was_assoc) {
3339 wl1271_unjoin(wl);
3340 wl1271_dummy_join(wl);
3341 }
f5fc0f86 3342 }
f5fc0f86
LC		 3343 }
3344
d192d268
EP		 3345 if (changed & BSS_CHANGED_IBSS) {
3346 wl1271_debug(DEBUG_ADHOC, "ibss_joined: %d",
3347 bss_conf->ibss_joined);
3348
3349 if (bss_conf->ibss_joined) {
3350 u32 rates = bss_conf->basic_rates;
3351 wl->basic_rate_set = wl1271_tx_enabled_rates_get(wl,
3352 rates);
3353 wl->basic_rate = wl1271_tx_min_rate_get(wl);
3354
3355 /* by default, use 11b rates */
3356 wl->rate_set = CONF_TX_IBSS_DEFAULT_RATES;
3357 ret = wl1271_acx_sta_rate_policies(wl);
3358 if (ret < 0)
3359 goto out;
3360 }
3361 }
3362
e78a287a
AN		 3363 ret = wl1271_bss_erp_info_changed(wl, bss_conf, changed);
3364 if (ret < 0)
3365 goto out;
f5fc0f86 3366
ca52a5eb
JO		 3367 if (changed & BSS_CHANGED_ARP_FILTER) {
3368 __be32 addr = bss_conf->arp_addr_list[0];
3369 WARN_ON(wl->bss_type != BSS_TYPE_STA_BSS);
3370
c5312772
EP		 3371 if (bss_conf->arp_addr_cnt == 1 &&
3372 bss_conf->arp_filter_enabled) {
3373 /*
3374 * The template should have been configured only upon
3375 * association. however, it seems that the correct ip
3376 * isn't being set (when sending), so we have to
3377 * reconfigure the template upon every ip change.
3378 */
3379 ret = wl1271_cmd_build_arp_rsp(wl, addr);
3380 if (ret < 0) {
3381 wl1271_warning("build arp rsp failed: %d", ret);
e78a287a 3382 goto out;
c5312772
EP		 3383 }
3384
3385 ret = wl1271_acx_arp_ip_filter(wl,
e5e2f24b 3386 ACX_ARP_FILTER_ARP_FILTERING,
c5312772
EP		 3387 addr);
3388 } else
3389 ret = wl1271_acx_arp_ip_filter(wl, 0, addr);
ca52a5eb
JO		 3390
3391 if (ret < 0)
e78a287a 3392 goto out;
ca52a5eb
JO		 3393 }
3394
8bf29b0e 3395 if (do_join) {
69e5434c 3396 ret = wl1271_join(wl, set_assoc);
8bf29b0e
JO		 3397 if (ret < 0) {
3398 wl1271_warning("cmd join failed %d", ret);
e78a287a 3399 goto out;
8bf29b0e 3400 }
ef4b29e9 3401 wl1271_check_operstate(wl, ieee80211_get_operstate(vif));
c1899554
JO		 3402 }
3403
e78a287a
AN		 3404out:
3405 return;
3406}
3407
3408static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
3409 struct ieee80211_vif *vif,
3410 struct ieee80211_bss_conf *bss_conf,
3411 u32 changed)
3412{
3413 struct wl1271 *wl = hw->priv;
3414 bool is_ap = (wl->bss_type == BSS_TYPE_AP_BSS);
3415 int ret;
3416
3417 wl1271_debug(DEBUG_MAC80211, "mac80211 bss info changed 0x%x",
3418 (int)changed);
3419
3420 mutex_lock(&wl->mutex);
3421
3422 if (unlikely(wl->state == WL1271_STATE_OFF))
3423 goto out;
3424
a620865e 3425 ret = wl1271_ps_elp_wakeup(wl);
e78a287a
AN		 3426 if (ret < 0)
3427 goto out;
3428
3429 if (is_ap)
3430 wl1271_bss_info_changed_ap(wl, vif, bss_conf, changed);
3431 else
3432 wl1271_bss_info_changed_sta(wl, vif, bss_conf, changed);
3433
f5fc0f86
LC		 3434 wl1271_ps_elp_sleep(wl);
3435
3436out:
3437 mutex_unlock(&wl->mutex);
3438}
3439
c6999d83
KV		 3440static int wl1271_op_conf_tx(struct ieee80211_hw *hw, u16 queue,
3441 const struct ieee80211_tx_queue_params *params)
3442{
3443 struct wl1271 *wl = hw->priv;
4695dc91 3444 u8 ps_scheme;
488fc540 3445 int ret = 0;
c6999d83
KV		 3446
3447 mutex_lock(&wl->mutex);
3448
3449 wl1271_debug(DEBUG_MAC80211, "mac80211 conf tx %d", queue);
3450
4695dc91
KV		 3451 if (params->uapsd)
3452 ps_scheme = CONF_PS_SCHEME_UPSD_TRIGGER;
3453 else
3454 ps_scheme = CONF_PS_SCHEME_LEGACY;
3455
488fc540
AN		 3456 if (wl->state == WL1271_STATE_OFF) {
3457 /*
3458 * If the state is off, the parameters will be recorded and
3459 * configured on init. This happens in AP-mode.
3460 */
3461 struct conf_tx_ac_category *conf_ac =
3462 &wl->conf.tx.ac_conf[wl1271_tx_get_queue(queue)];
3463 struct conf_tx_tid *conf_tid =
3464 &wl->conf.tx.tid_conf[wl1271_tx_get_queue(queue)];
3465
3466 conf_ac->ac = wl1271_tx_get_queue(queue);
3467 conf_ac->cw_min = (u8)params->cw_min;
3468 conf_ac->cw_max = params->cw_max;
3469 conf_ac->aifsn = params->aifs;
3470 conf_ac->tx_op_limit = params->txop << 5;
3471
3472 conf_tid->queue_id = wl1271_tx_get_queue(queue);
3473 conf_tid->channel_type = CONF_CHANNEL_TYPE_EDCF;
3474 conf_tid->tsid = wl1271_tx_get_queue(queue);
3475 conf_tid->ps_scheme = ps_scheme;
3476 conf_tid->ack_policy = CONF_ACK_POLICY_LEGACY;
3477 conf_tid->apsd_conf[0] = 0;
3478 conf_tid->apsd_conf[1] = 0;
c1b193eb
EP		 3479 goto out;
3480 }
488fc540 3481
c1b193eb
EP		 3482 ret = wl1271_ps_elp_wakeup(wl);
3483 if (ret < 0)
3484 goto out;
488fc540 3485
c1b193eb
EP		 3486 /*
3487 * the txop is confed in units of 32us by the mac80211,
3488 * we need us
3489 */
3490 ret = wl1271_acx_ac_cfg(wl, wl1271_tx_get_queue(queue),
3491 params->cw_min, params->cw_max,
3492 params->aifs, params->txop << 5);
3493 if (ret < 0)
3494 goto out_sleep;
3495
3496 ret = wl1271_acx_tid_cfg(wl, wl1271_tx_get_queue(queue),
3497 CONF_CHANNEL_TYPE_EDCF,
3498 wl1271_tx_get_queue(queue),
3499 ps_scheme, CONF_ACK_POLICY_LEGACY,
3500 0, 0);
c82c1dde
KV		 3501
3502out_sleep:
c1b193eb 3503 wl1271_ps_elp_sleep(wl);
c6999d83
KV		 3504
3505out:
3506 mutex_unlock(&wl->mutex);
3507
3508 return ret;
3509}
3510
bbbb538e
JO		 3511static u64 wl1271_op_get_tsf(struct ieee80211_hw *hw)
3512{
3513
3514 struct wl1271 *wl = hw->priv;
3515 u64 mactime = ULLONG_MAX;
3516 int ret;
3517
3518 wl1271_debug(DEBUG_MAC80211, "mac80211 get tsf");
3519
3520 mutex_lock(&wl->mutex);
3521
f8d9802f
JO		 3522 if (unlikely(wl->state == WL1271_STATE_OFF))
3523 goto out;
3524
a620865e 3525 ret = wl1271_ps_elp_wakeup(wl);
bbbb538e
JO		 3526 if (ret < 0)
3527 goto out;
3528
3529 ret = wl1271_acx_tsf_info(wl, &mactime);
3530 if (ret < 0)
3531 goto out_sleep;
3532
3533out_sleep:
3534 wl1271_ps_elp_sleep(wl);
3535
3536out:
3537 mutex_unlock(&wl->mutex);
3538 return mactime;
3539}
f5fc0f86 3540
ece550d0
JL		 3541static int wl1271_op_get_survey(struct ieee80211_hw *hw, int idx,
3542 struct survey_info *survey)
3543{
3544 struct wl1271 *wl = hw->priv;
3545 struct ieee80211_conf *conf = &hw->conf;
b739a42c 3546
ece550d0
JL		 3547 if (idx != 0)
3548 return -ENOENT;
b739a42c 3549
ece550d0
JL		 3550 survey->channel = conf->channel;
3551 survey->filled = SURVEY_INFO_NOISE_DBM;
3552 survey->noise = wl->noise;
b739a42c 3553
ece550d0
JL		 3554 return 0;
3555}
3556
409622ec 3557static int wl1271_allocate_sta(struct wl1271 *wl,
f84f7d78
AN		 3558 struct ieee80211_sta *sta,
3559 u8 *hlid)
3560{
3561 struct wl1271_station *wl_sta;
3562 int id;
3563
3564 id = find_first_zero_bit(wl->ap_hlid_map, AP_MAX_STATIONS);
3565 if (id >= AP_MAX_STATIONS) {
3566 wl1271_warning("could not allocate HLID - too much stations");
3567 return -EBUSY;
3568 }
3569
3570 wl_sta = (struct wl1271_station *)sta->drv_priv;
f84f7d78
AN		 3571 __set_bit(id, wl->ap_hlid_map);
3572 wl_sta->hlid = WL1271_AP_STA_HLID_START + id;
3573 *hlid = wl_sta->hlid;
b622d992 3574 memcpy(wl->links[wl_sta->hlid].addr, sta->addr, ETH_ALEN);
f84f7d78
AN		 3575 return 0;
3576}
3577
409622ec 3578static void wl1271_free_sta(struct wl1271 *wl, u8 hlid)
f84f7d78
AN		 3579{
3580 int id = hlid - WL1271_AP_STA_HLID_START;
3581
409622ec
AN		 3582 if (WARN_ON(!test_bit(id, wl->ap_hlid_map)))
3583 return;
3584
f84f7d78 3585 __clear_bit(id, wl->ap_hlid_map);
b622d992 3586 memset(wl->links[hlid].addr, 0, ETH_ALEN);
a8c0ddb5 3587 wl1271_tx_reset_link_queues(wl, hlid);
b622d992
AN		 3588 __clear_bit(hlid, &wl->ap_ps_map);
3589 __clear_bit(hlid, (unsigned long *)&wl->ap_fw_ps_map);
f84f7d78
AN		 3590}
3591
3618f30f
AN		 3592bool wl1271_is_active_sta(struct wl1271 *wl, u8 hlid)
3593{
3594 int id = hlid - WL1271_AP_STA_HLID_START;
3595 return test_bit(id, wl->ap_hlid_map);
3596}
3597
f84f7d78
AN		 3598static int wl1271_op_sta_add(struct ieee80211_hw *hw,
3599 struct ieee80211_vif *vif,
3600 struct ieee80211_sta *sta)
3601{
3602 struct wl1271 *wl = hw->priv;
3603 int ret = 0;
3604 u8 hlid;
3605
3606 mutex_lock(&wl->mutex);
3607
3608 if (unlikely(wl->state == WL1271_STATE_OFF))
3609 goto out;
3610
3611 if (wl->bss_type != BSS_TYPE_AP_BSS)
3612 goto out;
3613
3614 wl1271_debug(DEBUG_MAC80211, "mac80211 add sta %d", (int)sta->aid);
3615
409622ec 3616 ret = wl1271_allocate_sta(wl, sta, &hlid);
f84f7d78
AN		 3617 if (ret < 0)
3618 goto out;
3619
a620865e 3620 ret = wl1271_ps_elp_wakeup(wl);
f84f7d78 3621 if (ret < 0)
409622ec 3622 goto out_free_sta;
f84f7d78
AN		 3623
3624 ret = wl1271_cmd_add_sta(wl, sta, hlid);
3625 if (ret < 0)
3626 goto out_sleep;
3627
3628out_sleep:
3629 wl1271_ps_elp_sleep(wl);
3630
409622ec
AN		 3631out_free_sta:
3632 if (ret < 0)
3633 wl1271_free_sta(wl, hlid);
3634
f84f7d78
AN		 3635out:
3636 mutex_unlock(&wl->mutex);
3637 return ret;
3638}
3639
3640static int wl1271_op_sta_remove(struct ieee80211_hw *hw,
3641 struct ieee80211_vif *vif,
3642 struct ieee80211_sta *sta)
3643{
3644 struct wl1271 *wl = hw->priv;
3645 struct wl1271_station *wl_sta;
3646 int ret = 0, id;
3647
3648 mutex_lock(&wl->mutex);
3649
3650 if (unlikely(wl->state == WL1271_STATE_OFF))
3651 goto out;
3652
3653 if (wl->bss_type != BSS_TYPE_AP_BSS)
3654 goto out;
3655
3656 wl1271_debug(DEBUG_MAC80211, "mac80211 remove sta %d", (int)sta->aid);
3657
3658 wl_sta = (struct wl1271_station *)sta->drv_priv;
3659 id = wl_sta->hlid - WL1271_AP_STA_HLID_START;
3660 if (WARN_ON(!test_bit(id, wl->ap_hlid_map)))
3661 goto out;
3662
a620865e 3663 ret = wl1271_ps_elp_wakeup(wl);
f84f7d78
AN		 3664 if (ret < 0)
3665 goto out;
3666
3667 ret = wl1271_cmd_remove_sta(wl, wl_sta->hlid);
3668 if (ret < 0)
3669 goto out_sleep;
3670
409622ec 3671 wl1271_free_sta(wl, wl_sta->hlid);
f84f7d78
AN		 3672
3673out_sleep:
3674 wl1271_ps_elp_sleep(wl);
3675
3676out:
3677 mutex_unlock(&wl->mutex);
3678 return ret;
3679}
3680
4623ec7d
LC		 3681static int wl1271_op_ampdu_action(struct ieee80211_hw *hw,
3682 struct ieee80211_vif *vif,
3683 enum ieee80211_ampdu_mlme_action action,
3684 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
3685 u8 buf_size)
bbba3e68
LS		 3686{
3687 struct wl1271 *wl = hw->priv;
3688 int ret;
3689
3690 mutex_lock(&wl->mutex);
3691
3692 if (unlikely(wl->state == WL1271_STATE_OFF)) {
3693 ret = -EAGAIN;
3694 goto out;
3695 }
3696
a620865e 3697 ret = wl1271_ps_elp_wakeup(wl);
bbba3e68
LS		 3698 if (ret < 0)
3699 goto out;
3700
70559a06
SL		 3701 wl1271_debug(DEBUG_MAC80211, "mac80211 ampdu: Rx tid %d action %d",
3702 tid, action);
3703
bbba3e68
LS		 3704 switch (action) {
3705 case IEEE80211_AMPDU_RX_START:
70559a06 3706 if ((wl->ba_support) && (wl->ba_allowed)) {
bbba3e68
LS		 3707 ret = wl1271_acx_set_ba_receiver_session(wl, tid, *ssn,
3708 true);
3709 if (!ret)
3710 wl->ba_rx_bitmap |= BIT(tid);
3711 } else {
3712 ret = -ENOTSUPP;
3713 }
3714 break;
3715
3716 case IEEE80211_AMPDU_RX_STOP:
3717 ret = wl1271_acx_set_ba_receiver_session(wl, tid, 0, false);
3718 if (!ret)
3719 wl->ba_rx_bitmap &= ~BIT(tid);
3720 break;
3721
3722 /*
3723 * The BA initiator session management in FW independently.
3724 * Falling break here on purpose for all TX APDU commands.
3725 */
3726 case IEEE80211_AMPDU_TX_START:
3727 case IEEE80211_AMPDU_TX_STOP:
3728 case IEEE80211_AMPDU_TX_OPERATIONAL:
3729 ret = -EINVAL;
3730 break;
3731
3732 default:
3733 wl1271_error("Incorrect ampdu action id=%x\n", action);
3734 ret = -EINVAL;
3735 }
3736
3737 wl1271_ps_elp_sleep(wl);
3738
3739out:
3740 mutex_unlock(&wl->mutex);
3741
3742 return ret;
3743}
3744
33437893
AN		 3745static bool wl1271_tx_frames_pending(struct ieee80211_hw *hw)
3746{
3747 struct wl1271 *wl = hw->priv;
3748 bool ret = false;
3749
3750 mutex_lock(&wl->mutex);
3751
3752 if (unlikely(wl->state == WL1271_STATE_OFF))
3753 goto out;
3754
3755 /* packets are considered pending if in the TX queue or the FW */
f1a46384 3756 ret = (wl1271_tx_total_queue_count(wl) > 0) || (wl->tx_frames_cnt > 0);
33437893
AN		 3757
3758 /* the above is appropriate for STA mode for PS purposes */
3759 WARN_ON(wl->bss_type != BSS_TYPE_STA_BSS);
3760
3761out:
3762 mutex_unlock(&wl->mutex);
3763
3764 return ret;
3765}
3766
f5fc0f86
LC		 3767/* can't be const, mac80211 writes to this */
3768static struct ieee80211_rate wl1271_rates[] = {
3769 { .bitrate = 10,
2b60100b
JO		 3770 .hw_value = CONF_HW_BIT_RATE_1MBPS,
3771 .hw_value_short = CONF_HW_BIT_RATE_1MBPS, },
f5fc0f86 3772 { .bitrate = 20,
2b60100b
JO		 3773 .hw_value = CONF_HW_BIT_RATE_2MBPS,
3774 .hw_value_short = CONF_HW_BIT_RATE_2MBPS,
f5fc0f86
LC		 3775 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
3776 { .bitrate = 55,
2b60100b
JO		 3777 .hw_value = CONF_HW_BIT_RATE_5_5MBPS,
3778 .hw_value_short = CONF_HW_BIT_RATE_5_5MBPS,
f5fc0f86
LC		 3779 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
3780 { .bitrate = 110,
2b60100b
JO		 3781 .hw_value = CONF_HW_BIT_RATE_11MBPS,
3782 .hw_value_short = CONF_HW_BIT_RATE_11MBPS,
f5fc0f86
LC		 3783 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
3784 { .bitrate = 60,
2b60100b
JO		 3785 .hw_value = CONF_HW_BIT_RATE_6MBPS,
3786 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
f5fc0f86 3787 { .bitrate = 90,
2b60100b
JO		 3788 .hw_value = CONF_HW_BIT_RATE_9MBPS,
3789 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
f5fc0f86 3790 { .bitrate = 120,
2b60100b
JO		 3791 .hw_value = CONF_HW_BIT_RATE_12MBPS,
3792 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
f5fc0f86 3793 { .bitrate = 180,
2b60100b
JO		 3794 .hw_value = CONF_HW_BIT_RATE_18MBPS,
3795 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
f5fc0f86 3796 { .bitrate = 240,
2b60100b
JO		 3797 .hw_value = CONF_HW_BIT_RATE_24MBPS,
3798 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
f5fc0f86 3799 { .bitrate = 360,
2b60100b
JO		 3800 .hw_value = CONF_HW_BIT_RATE_36MBPS,
3801 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
f5fc0f86 3802 { .bitrate = 480,
2b60100b
JO		 3803 .hw_value = CONF_HW_BIT_RATE_48MBPS,
3804 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
f5fc0f86 3805 { .bitrate = 540,
2b60100b
JO		 3806 .hw_value = CONF_HW_BIT_RATE_54MBPS,
3807 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
f5fc0f86
LC		 3808};
3809
fa97f46b 3810/* can't be const, mac80211 writes to this */
f5fc0f86 3811static struct ieee80211_channel wl1271_channels[] = {
a2d0e3f1 3812 { .hw_value = 1, .center_freq = 2412, .max_power = 25 },
fa21c7a9 3813 { .hw_value = 2, .center_freq = 2417, .max_power = 25 },
fa97f46b
JO		 3814 { .hw_value = 3, .center_freq = 2422, .max_power = 25 },
3815 { .hw_value = 4, .center_freq = 2427, .max_power = 25 },
3816 { .hw_value = 5, .center_freq = 2432, .max_power = 25 },
fa21c7a9 3817 { .hw_value = 6, .center_freq = 2437, .max_power = 25 },
fa97f46b
JO		 3818 { .hw_value = 7, .center_freq = 2442, .max_power = 25 },
3819 { .hw_value = 8, .center_freq = 2447, .max_power = 25 },
3820 { .hw_value = 9, .center_freq = 2452, .max_power = 25 },
fa21c7a9 3821 { .hw_value = 10, .center_freq = 2457, .max_power = 25 },
fa97f46b
JO		 3822 { .hw_value = 11, .center_freq = 2462, .max_power = 25 },
3823 { .hw_value = 12, .center_freq = 2467, .max_power = 25 },
3824 { .hw_value = 13, .center_freq = 2472, .max_power = 25 },
6c89b7b2 3825 { .hw_value = 14, .center_freq = 2484, .max_power = 25 },
f5fc0f86
LC		 3826};
3827
f876bb9a 3828/* mapping to indexes for wl1271_rates */
a0ea9493 3829static const u8 wl1271_rate_to_idx_2ghz[] = {
f876bb9a 3830 /* MCS rates are used only with 11n */
18357850
SL		 3831 7, /* CONF_HW_RXTX_RATE_MCS7 */
3832 6, /* CONF_HW_RXTX_RATE_MCS6 */
3833 5, /* CONF_HW_RXTX_RATE_MCS5 */
3834 4, /* CONF_HW_RXTX_RATE_MCS4 */
3835 3, /* CONF_HW_RXTX_RATE_MCS3 */
3836 2, /* CONF_HW_RXTX_RATE_MCS2 */
3837 1, /* CONF_HW_RXTX_RATE_MCS1 */
3838 0, /* CONF_HW_RXTX_RATE_MCS0 */
f876bb9a
JO		 3839
3840 11, /* CONF_HW_RXTX_RATE_54 */
3841 10, /* CONF_HW_RXTX_RATE_48 */
3842 9, /* CONF_HW_RXTX_RATE_36 */
3843 8, /* CONF_HW_RXTX_RATE_24 */
3844
3845 /* TI-specific rate */
3846 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_22 */
3847
3848 7, /* CONF_HW_RXTX_RATE_18 */
3849 6, /* CONF_HW_RXTX_RATE_12 */
3850 3, /* CONF_HW_RXTX_RATE_11 */
3851 5, /* CONF_HW_RXTX_RATE_9 */
3852 4, /* CONF_HW_RXTX_RATE_6 */
3853 2, /* CONF_HW_RXTX_RATE_5_5 */
3854 1, /* CONF_HW_RXTX_RATE_2 */
3855 0 /* CONF_HW_RXTX_RATE_1 */
3856};
3857
e8b03a2b
SL		 3858/* 11n STA capabilities */
3859#define HW_RX_HIGHEST_RATE 72
3860
00d20100
SL		 3861#ifdef CONFIG_WL12XX_HT
3862#define WL12XX_HT_CAP { \
871d0c3b
SL		 3863 .cap = IEEE80211_HT_CAP_GRN_FLD | IEEE80211_HT_CAP_SGI_20 | \
3864 (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT), \
e8b03a2b
SL		 3865 .ht_supported = true, \
3866 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K, \
3867 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_8, \
3868 .mcs = { \
3869 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, \
3870 .rx_highest = cpu_to_le16(HW_RX_HIGHEST_RATE), \
3871 .tx_params = IEEE80211_HT_MCS_TX_DEFINED, \
3872 }, \
3873}
18357850 3874#else
00d20100 3875#define WL12XX_HT_CAP { \
18357850
SL		 3876 .ht_supported = false, \
3877}
3878#endif
e8b03a2b 3879
f5fc0f86
LC		 3880/* can't be const, mac80211 writes to this */
3881static struct ieee80211_supported_band wl1271_band_2ghz = {
3882 .channels = wl1271_channels,
3883 .n_channels = ARRAY_SIZE(wl1271_channels),
3884 .bitrates = wl1271_rates,
3885 .n_bitrates = ARRAY_SIZE(wl1271_rates),
00d20100 3886 .ht_cap = WL12XX_HT_CAP,
f5fc0f86
LC		 3887};
3888
1ebec3d7
TP		 3889/* 5 GHz data rates for WL1273 */
3890static struct ieee80211_rate wl1271_rates_5ghz[] = {
3891 { .bitrate = 60,
3892 .hw_value = CONF_HW_BIT_RATE_6MBPS,
3893 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
3894 { .bitrate = 90,
3895 .hw_value = CONF_HW_BIT_RATE_9MBPS,
3896 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
3897 { .bitrate = 120,
3898 .hw_value = CONF_HW_BIT_RATE_12MBPS,
3899 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
3900 { .bitrate = 180,
3901 .hw_value = CONF_HW_BIT_RATE_18MBPS,
3902 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
3903 { .bitrate = 240,
3904 .hw_value = CONF_HW_BIT_RATE_24MBPS,
3905 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
3906 { .bitrate = 360,
3907 .hw_value = CONF_HW_BIT_RATE_36MBPS,
3908 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
3909 { .bitrate = 480,
3910 .hw_value = CONF_HW_BIT_RATE_48MBPS,
3911 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
3912 { .bitrate = 540,
3913 .hw_value = CONF_HW_BIT_RATE_54MBPS,
3914 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
3915};
3916
fa97f46b 3917/* 5 GHz band channels for WL1273 */
1ebec3d7 3918static struct ieee80211_channel wl1271_channels_5ghz[] = {
6cfa5cff
AN		 3919 { .hw_value = 7, .center_freq = 5035, .max_power = 25 },
3920 { .hw_value = 8, .center_freq = 5040, .max_power = 25 },
3921 { .hw_value = 9, .center_freq = 5045, .max_power = 25 },
3922 { .hw_value = 11, .center_freq = 5055, .max_power = 25 },
3923 { .hw_value = 12, .center_freq = 5060, .max_power = 25 },
3924 { .hw_value = 16, .center_freq = 5080, .max_power = 25 },
3925 { .hw_value = 34, .center_freq = 5170, .max_power = 25 },
3926 { .hw_value = 36, .center_freq = 5180, .max_power = 25 },
3927 { .hw_value = 38, .center_freq = 5190, .max_power = 25 },
3928 { .hw_value = 40, .center_freq = 5200, .max_power = 25 },
3929 { .hw_value = 42, .center_freq = 5210, .max_power = 25 },
3930 { .hw_value = 44, .center_freq = 5220, .max_power = 25 },
3931 { .hw_value = 46, .center_freq = 5230, .max_power = 25 },
3932 { .hw_value = 48, .center_freq = 5240, .max_power = 25 },
3933 { .hw_value = 52, .center_freq = 5260, .max_power = 25 },
3934 { .hw_value = 56, .center_freq = 5280, .max_power = 25 },
3935 { .hw_value = 60, .center_freq = 5300, .max_power = 25 },
3936 { .hw_value = 64, .center_freq = 5320, .max_power = 25 },
3937 { .hw_value = 100, .center_freq = 5500, .max_power = 25 },
3938 { .hw_value = 104, .center_freq = 5520, .max_power = 25 },
3939 { .hw_value = 108, .center_freq = 5540, .max_power = 25 },
3940 { .hw_value = 112, .center_freq = 5560, .max_power = 25 },
3941 { .hw_value = 116, .center_freq = 5580, .max_power = 25 },
3942 { .hw_value = 120, .center_freq = 5600, .max_power = 25 },
3943 { .hw_value = 124, .center_freq = 5620, .max_power = 25 },
3944 { .hw_value = 128, .center_freq = 5640, .max_power = 25 },
3945 { .hw_value = 132, .center_freq = 5660, .max_power = 25 },
3946 { .hw_value = 136, .center_freq = 5680, .max_power = 25 },
3947 { .hw_value = 140, .center_freq = 5700, .max_power = 25 },
3948 { .hw_value = 149, .center_freq = 5745, .max_power = 25 },
3949 { .hw_value = 153, .center_freq = 5765, .max_power = 25 },
3950 { .hw_value = 157, .center_freq = 5785, .max_power = 25 },
3951 { .hw_value = 161, .center_freq = 5805, .max_power = 25 },
3952 { .hw_value = 165, .center_freq = 5825, .max_power = 25 },
1ebec3d7
TP		 3953};
3954
f876bb9a 3955/* mapping to indexes for wl1271_rates_5ghz */
a0ea9493 3956static const u8 wl1271_rate_to_idx_5ghz[] = {
f876bb9a 3957 /* MCS rates are used only with 11n */
18357850
SL		 3958 7, /* CONF_HW_RXTX_RATE_MCS7 */
3959 6, /* CONF_HW_RXTX_RATE_MCS6 */
3960 5, /* CONF_HW_RXTX_RATE_MCS5 */
3961 4, /* CONF_HW_RXTX_RATE_MCS4 */
3962 3, /* CONF_HW_RXTX_RATE_MCS3 */
3963 2, /* CONF_HW_RXTX_RATE_MCS2 */
3964 1, /* CONF_HW_RXTX_RATE_MCS1 */
3965 0, /* CONF_HW_RXTX_RATE_MCS0 */
f876bb9a
JO		 3966
3967 7, /* CONF_HW_RXTX_RATE_54 */
3968 6, /* CONF_HW_RXTX_RATE_48 */
3969 5, /* CONF_HW_RXTX_RATE_36 */
3970 4, /* CONF_HW_RXTX_RATE_24 */
3971
3972 /* TI-specific rate */
3973 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_22 */
3974
3975 3, /* CONF_HW_RXTX_RATE_18 */
3976 2, /* CONF_HW_RXTX_RATE_12 */
3977 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_11 */
3978 1, /* CONF_HW_RXTX_RATE_9 */
3979 0, /* CONF_HW_RXTX_RATE_6 */
3980 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_5_5 */
3981 CONF_HW_RXTX_RATE_UNSUPPORTED, /* CONF_HW_RXTX_RATE_2 */
3982 CONF_HW_RXTX_RATE_UNSUPPORTED /* CONF_HW_RXTX_RATE_1 */
3983};
1ebec3d7
TP		 3984
3985static struct ieee80211_supported_band wl1271_band_5ghz = {
3986 .channels = wl1271_channels_5ghz,
3987 .n_channels = ARRAY_SIZE(wl1271_channels_5ghz),
3988 .bitrates = wl1271_rates_5ghz,
3989 .n_bitrates = ARRAY_SIZE(wl1271_rates_5ghz),
00d20100 3990 .ht_cap = WL12XX_HT_CAP,
1ebec3d7
TP		 3991};
3992
a0ea9493 3993static const u8 *wl1271_band_rate_to_idx[] = {
f876bb9a
JO		 3994 [IEEE80211_BAND_2GHZ] = wl1271_rate_to_idx_2ghz,
3995 [IEEE80211_BAND_5GHZ] = wl1271_rate_to_idx_5ghz
3996};
3997
f5fc0f86
LC		 3998static const struct ieee80211_ops wl1271_ops = {
3999 .start = wl1271_op_start,
4000 .stop = wl1271_op_stop,
4001 .add_interface = wl1271_op_add_interface,
4002 .remove_interface = wl1271_op_remove_interface,
f634a4e7 4003#ifdef CONFIG_PM
402e4861
EP		 4004 .suspend = wl1271_op_suspend,
4005 .resume = wl1271_op_resume,
f634a4e7 4006#endif
f5fc0f86 4007 .config = wl1271_op_config,
c87dec9f 4008 .prepare_multicast = wl1271_op_prepare_multicast,
f5fc0f86
LC		 4009 .configure_filter = wl1271_op_configure_filter,
4010 .tx = wl1271_op_tx,
4011 .set_key = wl1271_op_set_key,
4012 .hw_scan = wl1271_op_hw_scan,
73ecce31 4013 .cancel_hw_scan = wl1271_op_cancel_hw_scan,
33c2c06c
LC		 4014 .sched_scan_start = wl1271_op_sched_scan_start,
4015 .sched_scan_stop = wl1271_op_sched_scan_stop,
f5fc0f86 4016 .bss_info_changed = wl1271_op_bss_info_changed,
68d069c4 4017 .set_frag_threshold = wl1271_op_set_frag_threshold,
f5fc0f86 4018 .set_rts_threshold = wl1271_op_set_rts_threshold,
c6999d83 4019 .conf_tx = wl1271_op_conf_tx,
bbbb538e 4020 .get_tsf = wl1271_op_get_tsf,
ece550d0 4021 .get_survey = wl1271_op_get_survey,
f84f7d78
AN		 4022 .sta_add = wl1271_op_sta_add,
4023 .sta_remove = wl1271_op_sta_remove,
bbba3e68 4024 .ampdu_action = wl1271_op_ampdu_action,
33437893 4025 .tx_frames_pending = wl1271_tx_frames_pending,
c8c90873 4026 CFG80211_TESTMODE_CMD(wl1271_tm_cmd)
f5fc0f86
LC		 4027};
4028
f876bb9a 4029
6a2de93b 4030u8 wl1271_rate_to_idx(int rate, enum ieee80211_band band)
f876bb9a
JO		 4031{
4032 u8 idx;
4033
6a2de93b 4034 BUG_ON(band >= sizeof(wl1271_band_rate_to_idx)/sizeof(u8 *));
f876bb9a
JO		 4035
4036 if (unlikely(rate >= CONF_HW_RXTX_RATE_MAX)) {
4037 wl1271_error("Illegal RX rate from HW: %d", rate);
4038 return 0;
4039 }
4040
6a2de93b 4041 idx = wl1271_band_rate_to_idx[band][rate];
f876bb9a
JO		 4042 if (unlikely(idx == CONF_HW_RXTX_RATE_UNSUPPORTED)) {
4043 wl1271_error("Unsupported RX rate from HW: %d", rate);
4044 return 0;
4045 }
4046
4047 return idx;
4048}
4049
7fc3a864
JO		 4050static ssize_t wl1271_sysfs_show_bt_coex_state(struct device *dev,
4051 struct device_attribute *attr,
4052 char *buf)
4053{
4054 struct wl1271 *wl = dev_get_drvdata(dev);
4055 ssize_t len;
4056
2f63b011 4057 len = PAGE_SIZE;
7fc3a864
JO		 4058
4059 mutex_lock(&wl->mutex);
4060 len = snprintf(buf, len, "%d\n\n0 - off\n1 - on\n",
4061 wl->sg_enabled);
4062 mutex_unlock(&wl->mutex);
4063
4064 return len;
4065
4066}
4067
4068static ssize_t wl1271_sysfs_store_bt_coex_state(struct device *dev,
4069 struct device_attribute *attr,
4070 const char *buf, size_t count)
4071{
4072 struct wl1271 *wl = dev_get_drvdata(dev);
4073 unsigned long res;
4074 int ret;
4075
6277ed65 4076 ret = kstrtoul(buf, 10, &res);
7fc3a864
JO		 4077 if (ret < 0) {
4078 wl1271_warning("incorrect value written to bt_coex_mode");
4079 return count;
4080 }
4081
4082 mutex_lock(&wl->mutex);
4083
4084 res = !!res;
4085
4086 if (res == wl->sg_enabled)
4087 goto out;
4088
4089 wl->sg_enabled = res;
4090
4091 if (wl->state == WL1271_STATE_OFF)
4092 goto out;
4093
a620865e 4094 ret = wl1271_ps_elp_wakeup(wl);
7fc3a864
JO		 4095 if (ret < 0)
4096 goto out;
4097
4098 wl1271_acx_sg_enable(wl, wl->sg_enabled);
4099 wl1271_ps_elp_sleep(wl);
4100
4101 out:
4102 mutex_unlock(&wl->mutex);
4103 return count;
4104}
4105
4106static DEVICE_ATTR(bt_coex_state, S_IRUGO | S_IWUSR,
4107 wl1271_sysfs_show_bt_coex_state,
4108 wl1271_sysfs_store_bt_coex_state);
4109
d717fd61
JO		 4110static ssize_t wl1271_sysfs_show_hw_pg_ver(struct device *dev,
4111 struct device_attribute *attr,
4112 char *buf)
4113{
4114 struct wl1271 *wl = dev_get_drvdata(dev);
4115 ssize_t len;
4116
2f63b011 4117 len = PAGE_SIZE;
d717fd61
JO		 4118
4119 mutex_lock(&wl->mutex);
4120 if (wl->hw_pg_ver >= 0)
4121 len = snprintf(buf, len, "%d\n", wl->hw_pg_ver);
4122 else
4123 len = snprintf(buf, len, "n/a\n");
4124 mutex_unlock(&wl->mutex);
4125
4126 return len;
4127}
4128
4129static DEVICE_ATTR(hw_pg_ver, S_IRUGO | S_IWUSR,
4130 wl1271_sysfs_show_hw_pg_ver, NULL);
4131
95dac04f
IY		 4132static ssize_t wl1271_sysfs_read_fwlog(struct file *filp, struct kobject *kobj,
4133 struct bin_attribute *bin_attr,
4134 char *buffer, loff_t pos, size_t count)
4135{
4136 struct device *dev = container_of(kobj, struct device, kobj);
4137 struct wl1271 *wl = dev_get_drvdata(dev);
4138 ssize_t len;
4139 int ret;
4140
4141 ret = mutex_lock_interruptible(&wl->mutex);
4142 if (ret < 0)
4143 return -ERESTARTSYS;
4144
4145 /* Let only one thread read the log at a time, blocking others */
4146 while (wl->fwlog_size == 0) {
4147 DEFINE_WAIT(wait);
4148
4149 prepare_to_wait_exclusive(&wl->fwlog_waitq,
4150 &wait,
4151 TASK_INTERRUPTIBLE);
4152
4153 if (wl->fwlog_size != 0) {
4154 finish_wait(&wl->fwlog_waitq, &wait);
4155 break;
4156 }
4157
4158 mutex_unlock(&wl->mutex);
4159
4160 schedule();
4161 finish_wait(&wl->fwlog_waitq, &wait);
4162
4163 if (signal_pending(current))
4164 return -ERESTARTSYS;
4165
4166 ret = mutex_lock_interruptible(&wl->mutex);
4167 if (ret < 0)
4168 return -ERESTARTSYS;
4169 }
4170
4171 /* Check if the fwlog is still valid */
4172 if (wl->fwlog_size < 0) {
4173 mutex_unlock(&wl->mutex);
4174 return 0;
4175 }
4176
4177 /* Seeking is not supported - old logs are not kept. Disregard pos. */
4178 len = min(count, (size_t)wl->fwlog_size);
4179 wl->fwlog_size -= len;
4180 memcpy(buffer, wl->fwlog, len);
4181
4182 /* Make room for new messages */
4183 memmove(wl->fwlog, wl->fwlog + len, wl->fwlog_size);
4184
4185 mutex_unlock(&wl->mutex);
4186
4187 return len;
4188}
4189
4190static struct bin_attribute fwlog_attr = {
4191 .attr = {.name = "fwlog", .mode = S_IRUSR},
4192 .read = wl1271_sysfs_read_fwlog,
4193};
4194
2d5e82b8 4195int wl1271_register_hw(struct wl1271 *wl)
f5fc0f86
LC		 4196{
4197 int ret;
4198
4199 if (wl->mac80211_registered)
4200 return 0;
4201
31d26ec6
AN		 4202 ret = wl1271_fetch_nvs(wl);
4203 if (ret == 0) {
bc765bf3
SL		 4204 /* NOTE: The wl->nvs->nvs element must be first, in
4205 * order to simplify the casting, we assume it is at
4206 * the beginning of the wl->nvs structure.
4207 */
4208 u8 *nvs_ptr = (u8 *)wl->nvs;
31d26ec6
AN		 4209
4210 wl->mac_addr[0] = nvs_ptr[11];
4211 wl->mac_addr[1] = nvs_ptr[10];
4212 wl->mac_addr[2] = nvs_ptr[6];
4213 wl->mac_addr[3] = nvs_ptr[5];
4214 wl->mac_addr[4] = nvs_ptr[4];
4215 wl->mac_addr[5] = nvs_ptr[3];
4216 }
4217
f5fc0f86
LC		 4218 SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr);
4219
4220 ret = ieee80211_register_hw(wl->hw);
4221 if (ret < 0) {
4222 wl1271_error("unable to register mac80211 hw: %d", ret);
4223 return ret;
4224 }
4225
4226 wl->mac80211_registered = true;
4227
d60080ae
EP		 4228 wl1271_debugfs_init(wl);
4229
c2c192ac
JO		 4230 register_netdevice_notifier(&wl1271_dev_notifier);
4231
f5fc0f86
LC		 4232 wl1271_notice("loaded");
4233
4234 return 0;
4235}
50b3eb4b 4236EXPORT_SYMBOL_GPL(wl1271_register_hw);
f5fc0f86 4237
3b56dd6a
TP		 4238void wl1271_unregister_hw(struct wl1271 *wl)
4239{
4ae3fa87
JO		 4240 if (wl->state == WL1271_STATE_PLT)
4241 __wl1271_plt_stop(wl);
4242
c2c192ac 4243 unregister_netdevice_notifier(&wl1271_dev_notifier);
3b56dd6a
TP		 4244 ieee80211_unregister_hw(wl->hw);
4245 wl->mac80211_registered = false;
4246
4247}
4248EXPORT_SYMBOL_GPL(wl1271_unregister_hw);
4249
2d5e82b8 4250int wl1271_init_ieee80211(struct wl1271 *wl)
f5fc0f86 4251{
7a55724e
JO		 4252 static const u32 cipher_suites[] = {
4253 WLAN_CIPHER_SUITE_WEP40,
4254 WLAN_CIPHER_SUITE_WEP104,
4255 WLAN_CIPHER_SUITE_TKIP,
4256 WLAN_CIPHER_SUITE_CCMP,
4257 WL1271_CIPHER_SUITE_GEM,
4258 };
4259
1e2b7976
JO		 4260 /* The tx descriptor buffer and the TKIP space. */
4261 wl->hw->extra_tx_headroom = WL1271_TKIP_IV_SPACE +
4262 sizeof(struct wl1271_tx_hw_descr);
f5fc0f86
LC		 4263
4264 /* unit us */
4265 /* FIXME: find a proper value */
4266 wl->hw->channel_change_time = 10000;
50c500ad 4267 wl->hw->max_listen_interval = wl->conf.conn.max_listen_interval;
f5fc0f86
LC		 4268
4269 wl->hw->flags = IEEE80211_HW_SIGNAL_DBM |
03442a33 4270 IEEE80211_HW_BEACON_FILTER |
0a34332f 4271 IEEE80211_HW_SUPPORTS_PS |
4695dc91 4272 IEEE80211_HW_SUPPORTS_UAPSD |
a9af092b 4273 IEEE80211_HW_HAS_RATE_CONTROL |
00236aed 4274 IEEE80211_HW_CONNECTION_MONITOR |
62c0740c 4275 IEEE80211_HW_SUPPORTS_CQM_RSSI |
25eaea30 4276 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
fcd23b63 4277 IEEE80211_HW_SPECTRUM_MGMT |
ba7c082a 4278 IEEE80211_HW_AP_LINK_PS;
f5fc0f86 4279
7a55724e
JO		 4280 wl->hw->wiphy->cipher_suites = cipher_suites;
4281 wl->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
4282
e0d8bbf0 4283 wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
038d925b 4284 BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP);
f5fc0f86 4285 wl->hw->wiphy->max_scan_ssids = 1;
ea559b46
GE		 4286 /*
4287 * Maximum length of elements in scanning probe request templates
4288 * should be the maximum length possible for a template, without
4289 * the IEEE80211 header of the template
4290 */
4291 wl->hw->wiphy->max_scan_ie_len = WL1271_CMD_TEMPL_MAX_SIZE -
4292 sizeof(struct ieee80211_header);
a8aaaf53 4293
4a31c11c
LC		 4294 /* make sure all our channels fit in the scanned_ch bitmask */
4295 BUILD_BUG_ON(ARRAY_SIZE(wl1271_channels) +
4296 ARRAY_SIZE(wl1271_channels_5ghz) >
4297 WL1271_MAX_CHANNELS);
a8aaaf53
LC		 4298 /*
4299 * We keep local copies of the band structs because we need to
4300 * modify them on a per-device basis.
4301 */
4302 memcpy(&wl->bands[IEEE80211_BAND_2GHZ], &wl1271_band_2ghz,
4303 sizeof(wl1271_band_2ghz));
4304 memcpy(&wl->bands[IEEE80211_BAND_5GHZ], &wl1271_band_5ghz,
4305 sizeof(wl1271_band_5ghz));
4306
4307 wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
4308 &wl->bands[IEEE80211_BAND_2GHZ];
4309 wl->hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
4310 &wl->bands[IEEE80211_BAND_5GHZ];
1ebec3d7 4311
12bd8949 4312 wl->hw->queues = 4;
31627dc5 4313 wl->hw->max_rates = 1;
12bd8949 4314
b7417d93
JO		 4315 wl->hw->wiphy->reg_notifier = wl1271_reg_notify;
4316
8197b711 4317 SET_IEEE80211_DEV(wl->hw, wl1271_wl_to_dev(wl));
f5fc0f86 4318
f84f7d78
AN		 4319 wl->hw->sta_data_size = sizeof(struct wl1271_station);
4320
4c9cfa78
LC		 4321 wl->hw->max_rx_aggregation_subframes = 8;
4322
f5fc0f86
LC		 4323 return 0;
4324}
50b3eb4b 4325EXPORT_SYMBOL_GPL(wl1271_init_ieee80211);
f5fc0f86 4326
f5fc0f86 4327#define WL1271_DEFAULT_CHANNEL 0
c332a4b8 4328
2d5e82b8 4329struct ieee80211_hw *wl1271_alloc_hw(void)
f5fc0f86 4330{
f5fc0f86 4331 struct ieee80211_hw *hw;
3b56dd6a 4332 struct platform_device *plat_dev = NULL;
f5fc0f86 4333 struct wl1271 *wl;
a8c0ddb5 4334 int i, j, ret;
1f37cbc9 4335 unsigned int order;
f5fc0f86
LC		 4336
4337 hw = ieee80211_alloc_hw(sizeof(*wl), &wl1271_ops);
4338 if (!hw) {
4339 wl1271_error("could not alloc ieee80211_hw");
a1dd8187 4340 ret = -ENOMEM;
3b56dd6a
TP		 4341 goto err_hw_alloc;
4342 }
4343
929ebd30 4344 plat_dev = kmemdup(&wl1271_device, sizeof(wl1271_device), GFP_KERNEL);
3b56dd6a
TP		 4345 if (!plat_dev) {
4346 wl1271_error("could not allocate platform_device");
4347 ret = -ENOMEM;
4348 goto err_plat_alloc;
f5fc0f86
LC		 4349 }
4350
4351 wl = hw->priv;
4352 memset(wl, 0, sizeof(*wl));
4353
01c09162
JO		 4354 INIT_LIST_HEAD(&wl->list);
4355
f5fc0f86 4356 wl->hw = hw;
3b56dd6a 4357 wl->plat_dev = plat_dev;
f5fc0f86 4358
6742f554
JO		 4359 for (i = 0; i < NUM_TX_QUEUES; i++)
4360 skb_queue_head_init(&wl->tx_queue[i]);
f5fc0f86 4361
a8c0ddb5
AN		 4362 for (i = 0; i < NUM_TX_QUEUES; i++)
4363 for (j = 0; j < AP_MAX_LINKS; j++)
4364 skb_queue_head_init(&wl->links[j].tx_queue[i]);
4365
a620865e
IY		 4366 skb_queue_head_init(&wl->deferred_rx_queue);
4367 skb_queue_head_init(&wl->deferred_tx_queue);
4368
37b70a81 4369 INIT_DELAYED_WORK(&wl->elp_work, wl1271_elp_work);
90494a90 4370 INIT_DELAYED_WORK(&wl->pspoll_work, wl1271_pspoll_work);
a620865e 4371 INIT_WORK(&wl->netstack_work, wl1271_netstack_work);
117b38d0
JO		 4372 INIT_WORK(&wl->tx_work, wl1271_tx_work);
4373 INIT_WORK(&wl->recovery_work, wl1271_recovery_work);
4374 INIT_DELAYED_WORK(&wl->scan_complete_work, wl1271_scan_complete_work);
77ddaa10
EP		 4375 INIT_WORK(&wl->rx_streaming_enable_work,
4376 wl1271_rx_streaming_enable_work);
4377 INIT_WORK(&wl->rx_streaming_disable_work,
4378 wl1271_rx_streaming_disable_work);
4379
92ef8960
EP		 4380 wl->freezable_wq = create_freezable_workqueue("wl12xx_wq");
4381 if (!wl->freezable_wq) {
4382 ret = -ENOMEM;
4383 goto err_hw;
4384 }
4385
f5fc0f86 4386 wl->channel = WL1271_DEFAULT_CHANNEL;
60e84c2e 4387 wl->beacon_int = WL1271_DEFAULT_BEACON_INT;
f5fc0f86 4388 wl->default_key = 0;
f5fc0f86 4389 wl->rx_counter = 0;
ae113b57
AN		 4390 wl->rx_config = WL1271_DEFAULT_STA_RX_CONFIG;
4391 wl->rx_filter = WL1271_DEFAULT_STA_RX_FILTER;
19ad0715 4392 wl->psm_entry_retry = 0;
f5fc0f86 4393 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
a6fe2313 4394 wl->basic_rate_set = CONF_TX_RATE_MASK_BASIC;
ebba60c6 4395 wl->basic_rate = CONF_TX_RATE_MASK_BASIC;
830fb67b 4396 wl->rate_set = CONF_TX_RATE_MASK_BASIC;
8a5a37a6 4397 wl->band = IEEE80211_BAND_2GHZ;
b771eee5 4398 wl->vif = NULL;
830fb67b 4399 wl->flags = 0;
7fc3a864 4400 wl->sg_enabled = true;
d717fd61 4401 wl->hw_pg_ver = -1;
166d504e
AN		 4402 wl->bss_type = MAX_BSS_TYPE;
4403 wl->set_bss_type = MAX_BSS_TYPE;
4404 wl->fw_bss_type = MAX_BSS_TYPE;
a8c0ddb5 4405 wl->last_tx_hlid = 0;
b622d992
AN		 4406 wl->ap_ps_map = 0;
4407 wl->ap_fw_ps_map = 0;
606ea9fa 4408 wl->quirks = 0;
341b7cde 4409 wl->platform_quirks = 0;
33c2c06c 4410 wl->sched_scanning = false;
b992c682
OK		 4411 wl->tx_security_seq = 0;
4412 wl->tx_security_last_seq_lsb = 0;
4413
77ddaa10
EP		 4414 setup_timer(&wl->rx_streaming_timer, wl1271_rx_streaming_timer,
4415 (unsigned long) wl);
95dac04f
IY		 4416 wl->fwlog_size = 0;
4417 init_waitqueue_head(&wl->fwlog_waitq);
f5fc0f86 4418
25eeb9e3 4419 memset(wl->tx_frames_map, 0, sizeof(wl->tx_frames_map));
be7078c2 4420 for (i = 0; i < ACX_TX_DESCRIPTORS; i++)
f5fc0f86
LC		 4421 wl->tx_frames[i] = NULL;
4422
4423 spin_lock_init(&wl->wl_lock);
4424
f5fc0f86
LC		 4425 wl->state = WL1271_STATE_OFF;
4426 mutex_init(&wl->mutex);
4427
c332a4b8
TP		 4428 /* Apply default driver configuration. */
4429 wl1271_conf_init(wl);
4430
1f37cbc9
IY		 4431 order = get_order(WL1271_AGGR_BUFFER_SIZE);
4432 wl->aggr_buf = (u8 *)__get_free_pages(GFP_KERNEL, order);
4433 if (!wl->aggr_buf) {
4434 ret = -ENOMEM;
92ef8960 4435 goto err_wq;
1f37cbc9
IY		 4436 }
4437
990f5de7
IY		 4438 wl->dummy_packet = wl12xx_alloc_dummy_packet(wl);
4439 if (!wl->dummy_packet) {
4440 ret = -ENOMEM;
4441 goto err_aggr;
4442 }
4443
95dac04f
IY		 4444 /* Allocate one page for the FW log */
4445 wl->fwlog = (u8 *)get_zeroed_page(GFP_KERNEL);
4446 if (!wl->fwlog) {
4447 ret = -ENOMEM;
4448 goto err_dummy_packet;
4449 }
4450
a1dd8187 4451 /* Register platform device */
3b56dd6a 4452 ret = platform_device_register(wl->plat_dev);
a1dd8187
JO		 4453 if (ret) {
4454 wl1271_error("couldn't register platform device");
95dac04f 4455 goto err_fwlog;
a1dd8187 4456 }
3b56dd6a 4457 dev_set_drvdata(&wl->plat_dev->dev, wl);
a1dd8187 4458
7fc3a864 4459 /* Create sysfs file to control bt coex state */
3b56dd6a 4460 ret = device_create_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
7fc3a864
JO		 4461 if (ret < 0) {
4462 wl1271_error("failed to create sysfs file bt_coex_state");
4463 goto err_platform;
4464 }
a1dd8187 4465
d717fd61
JO		 4466 /* Create sysfs file to get HW PG version */
4467 ret = device_create_file(&wl->plat_dev->dev, &dev_attr_hw_pg_ver);
4468 if (ret < 0) {
4469 wl1271_error("failed to create sysfs file hw_pg_ver");
4470 goto err_bt_coex_state;
4471 }
4472
95dac04f
IY		 4473 /* Create sysfs file for the FW log */
4474 ret = device_create_bin_file(&wl->plat_dev->dev, &fwlog_attr);
4475 if (ret < 0) {
4476 wl1271_error("failed to create sysfs file fwlog");
4477 goto err_hw_pg_ver;
4478 }
4479
c332a4b8 4480 return hw;
a1dd8187 4481
95dac04f
IY		 4482err_hw_pg_ver:
4483 device_remove_file(&wl->plat_dev->dev, &dev_attr_hw_pg_ver);
4484
d717fd61
JO		 4485err_bt_coex_state:
4486 device_remove_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
4487
7fc3a864 4488err_platform:
3b56dd6a 4489 platform_device_unregister(wl->plat_dev);
7fc3a864 4490
95dac04f
IY		 4491err_fwlog:
4492 free_page((unsigned long)wl->fwlog);
4493
990f5de7
IY		 4494err_dummy_packet:
4495 dev_kfree_skb(wl->dummy_packet);
4496
1f37cbc9
IY		 4497err_aggr:
4498 free_pages((unsigned long)wl->aggr_buf, order);
4499
92ef8960
EP		 4500err_wq:
4501 destroy_workqueue(wl->freezable_wq);
4502
a1dd8187 4503err_hw:
3b56dd6a
TP		 4504 wl1271_debugfs_exit(wl);
4505 kfree(plat_dev);
4506
4507err_plat_alloc:
4508 ieee80211_free_hw(hw);
4509
4510err_hw_alloc:
a1dd8187 4511
a1dd8187 4512 return ERR_PTR(ret);
c332a4b8 4513}
50b3eb4b 4514EXPORT_SYMBOL_GPL(wl1271_alloc_hw);
c332a4b8
TP		 4515
4516int wl1271_free_hw(struct wl1271 *wl)
4517{
95dac04f
IY		 4518 /* Unblock any fwlog readers */
4519 mutex_lock(&wl->mutex);
4520 wl->fwlog_size = -1;
4521 wake_up_interruptible_all(&wl->fwlog_waitq);
4522 mutex_unlock(&wl->mutex);
4523
4524 device_remove_bin_file(&wl->plat_dev->dev, &fwlog_attr);
3b56dd6a 4525 platform_device_unregister(wl->plat_dev);
95dac04f 4526 free_page((unsigned long)wl->fwlog);
990f5de7 4527 dev_kfree_skb(wl->dummy_packet);
1f37cbc9
IY		 4528 free_pages((unsigned long)wl->aggr_buf,
4529 get_order(WL1271_AGGR_BUFFER_SIZE));
3b56dd6a 4530 kfree(wl->plat_dev);
c332a4b8
TP		 4531
4532 wl1271_debugfs_exit(wl);
4533
c332a4b8
TP		 4534 vfree(wl->fw);
4535 wl->fw = NULL;
4536 kfree(wl->nvs);
4537 wl->nvs = NULL;
4538
4539 kfree(wl->fw_status);
4540 kfree(wl->tx_res_if);
92ef8960 4541 destroy_workqueue(wl->freezable_wq);
c332a4b8
TP		 4542
4543 ieee80211_free_hw(wl->hw);
4544
4545 return 0;
4546}
50b3eb4b
TP		 4547EXPORT_SYMBOL_GPL(wl1271_free_hw);
4548
491bbd6b 4549u32 wl12xx_debug_level = DEBUG_NONE;
17c1755c 4550EXPORT_SYMBOL_GPL(wl12xx_debug_level);
491bbd6b 4551module_param_named(debug_level, wl12xx_debug_level, uint, S_IRUSR | S_IWUSR);
17c1755c
EP		 4552MODULE_PARM_DESC(debug_level, "wl12xx debugging level");
4553
95dac04f
IY		 4554module_param_named(fwlog, fwlog_param, charp, 0);
4555MODULE_PARM_DESC(keymap,
4556 "FW logger options: continuous, ondemand, dbgpins or disable");
4557
50b3eb4b 4558MODULE_LICENSE("GPL");
b1a48cab 4559MODULE_AUTHOR("Luciano Coelho <coelho@ti.com>");
50b3eb4b 4560MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
kernel source for telekom puls (alcatel/mediatek)