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net: convert multicast list to list_head
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / net / wireless / wl12xx / wl1271_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>
01c09162 31#include <linux/inetdevice.h>
a1dd8187 32#include <linux/platform_device.h>
f5fc0f86
LC		 33
34#include "wl1271.h"
35#include "wl12xx_80211.h"
36#include "wl1271_reg.h"
7b048c52 37#include "wl1271_io.h"
f5fc0f86
LC		 38#include "wl1271_event.h"
39#include "wl1271_tx.h"
40#include "wl1271_rx.h"
41#include "wl1271_ps.h"
42#include "wl1271_init.h"
43#include "wl1271_debugfs.h"
44#include "wl1271_cmd.h"
45#include "wl1271_boot.h"
c8c90873 46#include "wl1271_testmode.h"
f5fc0f86 47
9ccd9217
JO		 48#define WL1271_BOOT_RETRIES 3
49
8a08048a
JO		 50static struct conf_drv_settings default_conf = {
51 .sg = {
1b00f546
JO		 52 .params = {
53 [CONF_SG_BT_PER_THRESHOLD] = 7500,
54 [CONF_SG_HV3_MAX_OVERRIDE] = 0,
55 [CONF_SG_BT_NFS_SAMPLE_INTERVAL] = 400,
56 [CONF_SG_BT_LOAD_RATIO] = 50,
57 [CONF_SG_AUTO_PS_MODE] = 0,
58 [CONF_SG_AUTO_SCAN_PROBE_REQ] = 170,
59 [CONF_SG_ACTIVE_SCAN_DURATION_FACTOR_HV3] = 50,
60 [CONF_SG_ANTENNA_CONFIGURATION] = 0,
61 [CONF_SG_BEACON_MISS_PERCENT] = 60,
62 [CONF_SG_RATE_ADAPT_THRESH] = 12,
63 [CONF_SG_RATE_ADAPT_SNR] = 0,
64 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MIN_BR] = 10,
65 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MAX_BR] = 30,
66 [CONF_SG_WLAN_PS_MAX_BT_ACL_MASTER_BR] = 8,
67 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MIN_BR] = 20,
68 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MAX_BR] = 50,
69 /* Note: with UPSD, this should be 4 */
70 [CONF_SG_WLAN_PS_MAX_BT_ACL_SLAVE_BR] = 8,
71 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MIN_EDR] = 7,
72 [CONF_SG_WLAN_PS_BT_ACL_MASTER_MAX_EDR] = 25,
73 [CONF_SG_WLAN_PS_MAX_BT_ACL_MASTER_EDR] = 20,
74 /* Note: with UPDS, this should be 15 */
75 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MIN_EDR] = 8,
76 /* Note: with UPDS, this should be 50 */
77 [CONF_SG_WLAN_PS_BT_ACL_SLAVE_MAX_EDR] = 40,
78 /* Note: with UPDS, this should be 10 */
79 [CONF_SG_WLAN_PS_MAX_BT_ACL_SLAVE_EDR] = 20,
80 [CONF_SG_RXT] = 1200,
81 [CONF_SG_TXT] = 1000,
82 [CONF_SG_ADAPTIVE_RXT_TXT] = 1,
83 [CONF_SG_PS_POLL_TIMEOUT] = 10,
84 [CONF_SG_UPSD_TIMEOUT] = 10,
85 [CONF_SG_WLAN_ACTIVE_BT_ACL_MASTER_MIN_EDR] = 7,
86 [CONF_SG_WLAN_ACTIVE_BT_ACL_MASTER_MAX_EDR] = 15,
87 [CONF_SG_WLAN_ACTIVE_MAX_BT_ACL_MASTER_EDR] = 15,
88 [CONF_SG_WLAN_ACTIVE_BT_ACL_SLAVE_MIN_EDR] = 8,
89 [CONF_SG_WLAN_ACTIVE_BT_ACL_SLAVE_MAX_EDR] = 20,
90 [CONF_SG_WLAN_ACTIVE_MAX_BT_ACL_SLAVE_EDR] = 15,
91 [CONF_SG_WLAN_ACTIVE_BT_ACL_MIN_BR] = 20,
92 [CONF_SG_WLAN_ACTIVE_BT_ACL_MAX_BR] = 50,
93 [CONF_SG_WLAN_ACTIVE_MAX_BT_ACL_BR] = 10,
94 [CONF_SG_PASSIVE_SCAN_DURATION_FACTOR_HV3] = 200,
95 [CONF_SG_PASSIVE_SCAN_DURATION_FACTOR_A2DP] = 800,
96 [CONF_SG_PASSIVE_SCAN_A2DP_BT_TIME] = 75,
97 [CONF_SG_PASSIVE_SCAN_A2DP_WLAN_TIME] = 15,
98 [CONF_SG_HV3_MAX_SERVED] = 6,
99 [CONF_SG_DHCP_TIME] = 5000,
100 [CONF_SG_ACTIVE_SCAN_DURATION_FACTOR_A2DP] = 100,
101 },
102 .state = CONF_SG_PROTECTIVE,
8a08048a
JO		 103 },
104 .rx = {
105 .rx_msdu_life_time = 512000,
106 .packet_detection_threshold = 0,
107 .ps_poll_timeout = 15,
108 .upsd_timeout = 15,
109 .rts_threshold = 2347,
3ed8f2c6
LC		 110 .rx_cca_threshold = 0,
111 .irq_blk_threshold = 0xFFFF,
112 .irq_pkt_threshold = 0,
113 .irq_timeout = 600,
8a08048a
JO		 114 .queue_type = CONF_RX_QUEUE_TYPE_LOW_PRIORITY,
115 },
116 .tx = {
117 .tx_energy_detection = 0,
118 .rc_conf = {
ec078d94
JO		 119 .enabled_rates = CONF_HW_BIT_RATE_1MBPS |
120 CONF_HW_BIT_RATE_2MBPS,
8a08048a
JO		 121 .short_retry_limit = 10,
122 .long_retry_limit = 10,
123 .aflags = 0
45b531a8 124 },
8a08048a
JO		 125 .ac_conf_count = 4,
126 .ac_conf = {
127 [0] = {
128 .ac = CONF_TX_AC_BE,
129 .cw_min = 15,
130 .cw_max = 63,
131 .aifsn = 3,
132 .tx_op_limit = 0,
45b531a8 133 },
8a08048a
JO		 134 [1] = {
135 .ac = CONF_TX_AC_BK,
136 .cw_min = 15,
137 .cw_max = 63,
138 .aifsn = 7,
139 .tx_op_limit = 0,
45b531a8 140 },
8a08048a
JO		 141 [2] = {
142 .ac = CONF_TX_AC_VI,
143 .cw_min = 15,
144 .cw_max = 63,
145 .aifsn = CONF_TX_AIFS_PIFS,
146 .tx_op_limit = 3008,
147 },
148 [3] = {
149 .ac = CONF_TX_AC_VO,
150 .cw_min = 15,
151 .cw_max = 63,
152 .aifsn = CONF_TX_AIFS_PIFS,
153 .tx_op_limit = 1504,
45b531a8 154 },
51f2be24 155 },
8a08048a
JO		 156 .tid_conf_count = 7,
157 .tid_conf = {
158 [0] = {
159 .queue_id = 0,
160 .channel_type = CONF_CHANNEL_TYPE_DCF,
161 .tsid = CONF_TX_AC_BE,
162 .ps_scheme = CONF_PS_SCHEME_LEGACY,
163 .ack_policy = CONF_ACK_POLICY_LEGACY,
164 .apsd_conf = {0, 0},
165 },
166 [1] = {
167 .queue_id = 1,
168 .channel_type = CONF_CHANNEL_TYPE_DCF,
169 .tsid = CONF_TX_AC_BE,
170 .ps_scheme = CONF_PS_SCHEME_LEGACY,
171 .ack_policy = CONF_ACK_POLICY_LEGACY,
172 .apsd_conf = {0, 0},
51f2be24 173 },
8a08048a
JO		 174 [2] = {
175 .queue_id = 2,
176 .channel_type = CONF_CHANNEL_TYPE_DCF,
177 .tsid = CONF_TX_AC_BE,
178 .ps_scheme = CONF_PS_SCHEME_LEGACY,
179 .ack_policy = CONF_ACK_POLICY_LEGACY,
180 .apsd_conf = {0, 0},
51f2be24 181 },
8a08048a
JO		 182 [3] = {
183 .queue_id = 3,
184 .channel_type = CONF_CHANNEL_TYPE_DCF,
185 .tsid = CONF_TX_AC_BE,
186 .ps_scheme = CONF_PS_SCHEME_LEGACY,
187 .ack_policy = CONF_ACK_POLICY_LEGACY,
188 .apsd_conf = {0, 0},
189 },
190 [4] = {
191 .queue_id = 4,
192 .channel_type = CONF_CHANNEL_TYPE_DCF,
193 .tsid = CONF_TX_AC_BE,
194 .ps_scheme = CONF_PS_SCHEME_LEGACY,
195 .ack_policy = CONF_ACK_POLICY_LEGACY,
196 .apsd_conf = {0, 0},
197 },
198 [5] = {
199 .queue_id = 5,
200 .channel_type = CONF_CHANNEL_TYPE_DCF,
201 .tsid = CONF_TX_AC_BE,
202 .ps_scheme = CONF_PS_SCHEME_LEGACY,
203 .ack_policy = CONF_ACK_POLICY_LEGACY,
204 .apsd_conf = {0, 0},
205 },
206 [6] = {
207 .queue_id = 6,
208 .channel_type = CONF_CHANNEL_TYPE_DCF,
209 .tsid = CONF_TX_AC_BE,
210 .ps_scheme = CONF_PS_SCHEME_LEGACY,
211 .ack_policy = CONF_ACK_POLICY_LEGACY,
212 .apsd_conf = {0, 0},
213 }
214 },
215 .frag_threshold = IEEE80211_MAX_FRAG_THRESHOLD,
3ed8f2c6
LC		 216 .tx_compl_timeout = 700,
217 .tx_compl_threshold = 4
8a08048a
JO		 218 },
219 .conn = {
220 .wake_up_event = CONF_WAKE_UP_EVENT_DTIM,
221 .listen_interval = 0,
222 .bcn_filt_mode = CONF_BCN_FILT_MODE_ENABLED,
223 .bcn_filt_ie_count = 1,
224 .bcn_filt_ie = {
225 [0] = {
226 .ie = WLAN_EID_CHANNEL_SWITCH,
227 .rule = CONF_BCN_RULE_PASS_ON_APPEARANCE,
51f2be24 228 }
47fab7d5 229 },
3ed8f2c6 230 .synch_fail_thold = 10,
8a08048a
JO		 231 .bss_lose_timeout = 100,
232 .beacon_rx_timeout = 10000,
233 .broadcast_timeout = 20000,
234 .rx_broadcast_in_ps = 1,
3ed8f2c6 235 .ps_poll_threshold = 20,
8a08048a
JO		 236 .sig_trigger_count = 2,
237 .sig_trigger = {
238 [0] = {
239 .threshold = -75,
240 .pacing = 500,
241 .metric = CONF_TRIG_METRIC_RSSI_BEACON,
242 .type = CONF_TRIG_EVENT_TYPE_EDGE,
243 .direction = CONF_TRIG_EVENT_DIR_LOW,
244 .hysteresis = 2,
245 .index = 0,
246 .enable = 1
47fab7d5 247 },
8a08048a
JO		 248 [1] = {
249 .threshold = -75,
250 .pacing = 500,
251 .metric = CONF_TRIG_METRIC_RSSI_BEACON,
252 .type = CONF_TRIG_EVENT_TYPE_EDGE,
253 .direction = CONF_TRIG_EVENT_DIR_HIGH,
254 .hysteresis = 2,
255 .index = 1,
256 .enable = 1
257 }
258 },
259 .sig_weights = {
260 .rssi_bcn_avg_weight = 10,
261 .rssi_pkt_avg_weight = 10,
262 .snr_bcn_avg_weight = 10,
263 .snr_pkt_avg_weight = 10
11f70f97
JO		 264 },
265 .bet_enable = CONF_BET_MODE_ENABLE,
84502563 266 .bet_max_consecutive = 10,
19ad0715 267 .psm_entry_retries = 3
8a08048a
JO		 268 },
269 .init = {
8a08048a 270 .radioparam = {
152ee6e0 271 .fem = 1,
2b60100b 272 }
6e92b416
LC		 273 },
274 .itrim = {
275 .enable = false,
276 .timeout = 50000,
38ad2d87
JO		 277 },
278 .pm_config = {
279 .host_clk_settling_time = 5000,
280 .host_fast_wakeup_support = false
8a08048a
JO		 281 }
282};
283
a1dd8187
JO		 284static void wl1271_device_release(struct device *dev)
285{
286
287}
288
289static struct platform_device wl1271_device = {
290 .name = "wl1271",
291 .id = -1,
292
293 /* device model insists to have a release function */
294 .dev = {
295 .release = wl1271_device_release,
296 },
297};
298
01c09162
JO		 299static LIST_HEAD(wl_list);
300
8a08048a
JO		 301static void wl1271_conf_init(struct wl1271 *wl)
302{
2b60100b
JO		 303
304 /*
305 * This function applies the default configuration to the driver. This
306 * function is invoked upon driver load (spi probe.)
307 *
308 * The configuration is stored in a run-time structure in order to
309 * facilitate for run-time adjustment of any of the parameters. Making
310 * changes to the configuration structure will apply the new values on
311 * the next interface up (wl1271_op_start.)
312 */
313
314 /* apply driver default configuration */
8a08048a 315 memcpy(&wl->conf, &default_conf, sizeof(default_conf));
2b60100b
JO		 316}
317
318
f5fc0f86
LC		 319static int wl1271_plt_init(struct wl1271 *wl)
320{
12419cce
LC		 321 struct conf_tx_ac_category *conf_ac;
322 struct conf_tx_tid *conf_tid;
323 int ret, i;
f5fc0f86 324
98b5dd5d 325 ret = wl1271_cmd_general_parms(wl);
4a90406b 326 if (ret < 0)
cc7defa3
LC		 327 return ret;
328
98b5dd5d 329 ret = wl1271_cmd_radio_parms(wl);
4a90406b 330 if (ret < 0)
cc7defa3
LC		 331 return ret;
332
12419cce
LC		 333 ret = wl1271_init_templates_config(wl);
334 if (ret < 0)
335 return ret;
336
f5fc0f86
LC		 337 ret = wl1271_acx_init_mem_config(wl);
338 if (ret < 0)
339 return ret;
340
12419cce
LC		 341 /* PHY layer config */
342 ret = wl1271_init_phy_config(wl);
343 if (ret < 0)
344 goto out_free_memmap;
345
346 ret = wl1271_acx_dco_itrim_params(wl);
347 if (ret < 0)
348 goto out_free_memmap;
349
350 /* Initialize connection monitoring thresholds */
351 ret = wl1271_acx_conn_monit_params(wl);
352 if (ret < 0)
353 goto out_free_memmap;
354
355 /* Bluetooth WLAN coexistence */
356 ret = wl1271_init_pta(wl);
357 if (ret < 0)
358 goto out_free_memmap;
359
360 /* Energy detection */
361 ret = wl1271_init_energy_detection(wl);
362 if (ret < 0)
363 goto out_free_memmap;
364
365 /* Default fragmentation threshold */
366 ret = wl1271_acx_frag_threshold(wl);
367 if (ret < 0)
368 goto out_free_memmap;
369
370 /* Default TID configuration */
371 for (i = 0; i < wl->conf.tx.tid_conf_count; i++) {
372 conf_tid = &wl->conf.tx.tid_conf[i];
373 ret = wl1271_acx_tid_cfg(wl, conf_tid->queue_id,
374 conf_tid->channel_type,
375 conf_tid->tsid,
376 conf_tid->ps_scheme,
377 conf_tid->ack_policy,
378 conf_tid->apsd_conf[0],
379 conf_tid->apsd_conf[1]);
380 if (ret < 0)
381 goto out_free_memmap;
382 }
383
384 /* Default AC configuration */
385 for (i = 0; i < wl->conf.tx.ac_conf_count; i++) {
386 conf_ac = &wl->conf.tx.ac_conf[i];
387 ret = wl1271_acx_ac_cfg(wl, conf_ac->ac, conf_ac->cw_min,
388 conf_ac->cw_max, conf_ac->aifsn,
389 conf_ac->tx_op_limit);
390 if (ret < 0)
391 goto out_free_memmap;
392 }
393
394 /* Enable data path */
94210897 395 ret = wl1271_cmd_data_path(wl, 1);
f5fc0f86 396 if (ret < 0)
12419cce
LC		 397 goto out_free_memmap;
398
399 /* Configure for CAM power saving (ie. always active) */
400 ret = wl1271_acx_sleep_auth(wl, WL1271_PSM_CAM);
401 if (ret < 0)
402 goto out_free_memmap;
403
404 /* configure PM */
405 ret = wl1271_acx_pm_config(wl);
406 if (ret < 0)
407 goto out_free_memmap;
f5fc0f86
LC		 408
409 return 0;
12419cce
LC		 410
411 out_free_memmap:
412 kfree(wl->target_mem_map);
413 wl->target_mem_map = NULL;
414
415 return ret;
f5fc0f86
LC		 416}
417
c15f63bf
JO		 418static void wl1271_fw_status(struct wl1271 *wl,
419 struct wl1271_fw_status *status)
f5fc0f86 420{
ac5e1e39 421 struct timespec ts;
f5fc0f86
LC		 422 u32 total = 0;
423 int i;
424
09a9c2b3 425 wl1271_raw_read(wl, FW_STATUS_ADDR, status, sizeof(*status), false);
f5fc0f86
LC		 426
427 wl1271_debug(DEBUG_IRQ, "intr: 0x%x (fw_rx_counter = %d, "
428 "drv_rx_counter = %d, tx_results_counter = %d)",
429 status->intr,
430 status->fw_rx_counter,
431 status->drv_rx_counter,
432 status->tx_results_counter);
433
434 /* update number of available TX blocks */
435 for (i = 0; i < NUM_TX_QUEUES; i++) {
d0f63b20
LC		 436 u32 cnt = le32_to_cpu(status->tx_released_blks[i]) -
437 wl->tx_blocks_freed[i];
438
439 wl->tx_blocks_freed[i] =
440 le32_to_cpu(status->tx_released_blks[i]);
f5fc0f86
LC		 441 wl->tx_blocks_available += cnt;
442 total += cnt;
443 }
444
445 /* if more blocks are available now, schedule some tx work */
446 if (total && !skb_queue_empty(&wl->tx_queue))
a64b07e8 447 ieee80211_queue_work(wl->hw, &wl->tx_work);
f5fc0f86
LC		 448
449 /* update the host-chipset time offset */
ac5e1e39
JO		 450 getnstimeofday(&ts);
451 wl->time_offset = (timespec_to_ns(&ts) >> 10) -
452 (s64)le32_to_cpu(status->fw_localtime);
f5fc0f86
LC		 453}
454
1e73eb62
JO		 455#define WL1271_IRQ_MAX_LOOPS 10
456
f5fc0f86
LC		 457static void wl1271_irq_work(struct work_struct *work)
458{
f5fc0f86 459 int ret;
c15f63bf 460 u32 intr;
1e73eb62
JO		 461 int loopcount = WL1271_IRQ_MAX_LOOPS;
462 unsigned long flags;
f5fc0f86
LC		 463 struct wl1271 *wl =
464 container_of(work, struct wl1271, irq_work);
465
466 mutex_lock(&wl->mutex);
467
468 wl1271_debug(DEBUG_IRQ, "IRQ work");
469
1e73eb62 470 if (unlikely(wl->state == WL1271_STATE_OFF))
f5fc0f86
LC		 471 goto out;
472
473 ret = wl1271_ps_elp_wakeup(wl, true);
474 if (ret < 0)
475 goto out;
476
1e73eb62
JO		 477 spin_lock_irqsave(&wl->wl_lock, flags);
478 while (test_bit(WL1271_FLAG_IRQ_PENDING, &wl->flags) && loopcount) {
479 clear_bit(WL1271_FLAG_IRQ_PENDING, &wl->flags);
480 spin_unlock_irqrestore(&wl->wl_lock, flags);
481 loopcount--;
482
483 wl1271_fw_status(wl, wl->fw_status);
484 intr = le32_to_cpu(wl->fw_status->intr);
485 if (!intr) {
486 wl1271_debug(DEBUG_IRQ, "Zero interrupt received.");
487 continue;
488 }
f5fc0f86 489
1e73eb62 490 intr &= WL1271_INTR_MASK;
f5fc0f86 491
1e73eb62
JO		 492 if (intr & WL1271_ACX_INTR_DATA) {
493 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_DATA");
1fd2794f 494
1e73eb62
JO		 495 /* check for tx results */
496 if (wl->fw_status->tx_results_counter !=
497 (wl->tx_results_count & 0xff))
498 wl1271_tx_complete(wl);
f5fc0f86 499
1e73eb62
JO		 500 wl1271_rx(wl, wl->fw_status);
501 }
f5fc0f86 502
1e73eb62
JO		 503 if (intr & WL1271_ACX_INTR_EVENT_A) {
504 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_A");
505 wl1271_event_handle(wl, 0);
506 }
f5fc0f86 507
1e73eb62
JO		 508 if (intr & WL1271_ACX_INTR_EVENT_B) {
509 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_EVENT_B");
510 wl1271_event_handle(wl, 1);
511 }
f5fc0f86 512
1e73eb62
JO		 513 if (intr & WL1271_ACX_INTR_INIT_COMPLETE)
514 wl1271_debug(DEBUG_IRQ,
515 "WL1271_ACX_INTR_INIT_COMPLETE");
f5fc0f86 516
1e73eb62
JO		 517 if (intr & WL1271_ACX_INTR_HW_AVAILABLE)
518 wl1271_debug(DEBUG_IRQ, "WL1271_ACX_INTR_HW_AVAILABLE");
519
520 spin_lock_irqsave(&wl->wl_lock, flags);
c15f63bf 521 }
f5fc0f86 522
1e73eb62
JO		 523 if (test_bit(WL1271_FLAG_IRQ_PENDING, &wl->flags))
524 ieee80211_queue_work(wl->hw, &wl->irq_work);
525 else
526 clear_bit(WL1271_FLAG_IRQ_RUNNING, &wl->flags);
527 spin_unlock_irqrestore(&wl->wl_lock, flags);
528
f5fc0f86
LC		 529 wl1271_ps_elp_sleep(wl);
530
531out:
532 mutex_unlock(&wl->mutex);
533}
534
f5fc0f86
LC		 535static int wl1271_fetch_firmware(struct wl1271 *wl)
536{
537 const struct firmware *fw;
538 int ret;
539
8197b711 540 ret = request_firmware(&fw, WL1271_FW_NAME, wl1271_wl_to_dev(wl));
f5fc0f86
LC		 541
542 if (ret < 0) {
543 wl1271_error("could not get firmware: %d", ret);
544 return ret;
545 }
546
547 if (fw->size % 4) {
548 wl1271_error("firmware size is not multiple of 32 bits: %zu",
549 fw->size);
550 ret = -EILSEQ;
551 goto out;
552 }
553
554 wl->fw_len = fw->size;
1fba4974 555 wl->fw = vmalloc(wl->fw_len);
f5fc0f86
LC		 556
557 if (!wl->fw) {
558 wl1271_error("could not allocate memory for the firmware");
559 ret = -ENOMEM;
560 goto out;
561 }
562
563 memcpy(wl->fw, fw->data, wl->fw_len);
564
565 ret = 0;
566
567out:
568 release_firmware(fw);
569
570 return ret;
571}
572
573static int wl1271_fetch_nvs(struct wl1271 *wl)
574{
575 const struct firmware *fw;
576 int ret;
577
8197b711 578 ret = request_firmware(&fw, WL1271_NVS_NAME, wl1271_wl_to_dev(wl));
f5fc0f86
LC		 579
580 if (ret < 0) {
581 wl1271_error("could not get nvs file: %d", ret);
582 return ret;
583 }
584
152ee6e0
JO		 585 if (fw->size != sizeof(struct wl1271_nvs_file)) {
586 wl1271_error("nvs size is not as expected: %zu != %zu",
587 fw->size, sizeof(struct wl1271_nvs_file));
f5fc0f86
LC		 588 ret = -EILSEQ;
589 goto out;
590 }
591
152ee6e0 592 wl->nvs = kmalloc(sizeof(struct wl1271_nvs_file), GFP_KERNEL);
f5fc0f86
LC		 593
594 if (!wl->nvs) {
595 wl1271_error("could not allocate memory for the nvs file");
596 ret = -ENOMEM;
597 goto out;
598 }
599
152ee6e0 600 memcpy(wl->nvs, fw->data, sizeof(struct wl1271_nvs_file));
f5fc0f86 601
f5fc0f86
LC		 602out:
603 release_firmware(fw);
604
605 return ret;
606}
607
608static void wl1271_fw_wakeup(struct wl1271 *wl)
609{
610 u32 elp_reg;
611
612 elp_reg = ELPCTRL_WAKE_UP;
74621417 613 wl1271_raw_write32(wl, HW_ACCESS_ELP_CTRL_REG_ADDR, elp_reg);
f5fc0f86
LC		 614}
615
616static int wl1271_setup(struct wl1271 *wl)
617{
618 wl->fw_status = kmalloc(sizeof(*wl->fw_status), GFP_KERNEL);
619 if (!wl->fw_status)
620 return -ENOMEM;
621
622 wl->tx_res_if = kmalloc(sizeof(*wl->tx_res_if), GFP_KERNEL);
623 if (!wl->tx_res_if) {
624 kfree(wl->fw_status);
625 return -ENOMEM;
626 }
627
628 INIT_WORK(&wl->irq_work, wl1271_irq_work);
629 INIT_WORK(&wl->tx_work, wl1271_tx_work);
630 return 0;
631}
632
633static int wl1271_chip_wakeup(struct wl1271 *wl)
634{
451de97a 635 struct wl1271_partition_set partition;
f5fc0f86
LC		 636 int ret = 0;
637
01ac17ec 638 msleep(WL1271_PRE_POWER_ON_SLEEP);
f5fc0f86
LC		 639 wl1271_power_on(wl);
640 msleep(WL1271_POWER_ON_SLEEP);
9b280722
TP		 641 wl1271_io_reset(wl);
642 wl1271_io_init(wl);
f5fc0f86
LC		 643
644 /* We don't need a real memory partition here, because we only want
645 * to use the registers at this point. */
451de97a
JO		 646 memset(&partition, 0, sizeof(partition));
647 partition.reg.start = REGISTERS_BASE;
648 partition.reg.size = REGISTERS_DOWN_SIZE;
649 wl1271_set_partition(wl, &partition);
f5fc0f86
LC		 650
651 /* ELP module wake up */
652 wl1271_fw_wakeup(wl);
653
654 /* whal_FwCtrl_BootSm() */
655
656 /* 0. read chip id from CHIP_ID */
7b048c52 657 wl->chip.id = wl1271_read32(wl, CHIP_ID_B);
f5fc0f86
LC		 658
659 /* 1. check if chip id is valid */
660
661 switch (wl->chip.id) {
662 case CHIP_ID_1271_PG10:
663 wl1271_warning("chip id 0x%x (1271 PG10) support is obsolete",
664 wl->chip.id);
665
666 ret = wl1271_setup(wl);
667 if (ret < 0)
9ccd9217 668 goto out;
f5fc0f86
LC		 669 break;
670 case CHIP_ID_1271_PG20:
671 wl1271_debug(DEBUG_BOOT, "chip id 0x%x (1271 PG20)",
672 wl->chip.id);
673
674 ret = wl1271_setup(wl);
675 if (ret < 0)
9ccd9217 676 goto out;
f5fc0f86
LC		 677 break;
678 default:
9ccd9217 679 wl1271_warning("unsupported chip id: 0x%x", wl->chip.id);
f5fc0f86 680 ret = -ENODEV;
9ccd9217 681 goto out;
f5fc0f86
LC		 682 }
683
684 if (wl->fw == NULL) {
685 ret = wl1271_fetch_firmware(wl);
686 if (ret < 0)
9ccd9217 687 goto out;
f5fc0f86
LC		 688 }
689
690 /* No NVS from netlink, try to get it from the filesystem */
691 if (wl->nvs == NULL) {
692 ret = wl1271_fetch_nvs(wl);
693 if (ret < 0)
9ccd9217 694 goto out;
f5fc0f86
LC		 695 }
696
697out:
698 return ret;
699}
700
f5fc0f86
LC		 701int wl1271_plt_start(struct wl1271 *wl)
702{
9ccd9217 703 int retries = WL1271_BOOT_RETRIES;
f5fc0f86
LC		 704 int ret;
705
706 mutex_lock(&wl->mutex);
707
708 wl1271_notice("power up");
709
710 if (wl->state != WL1271_STATE_OFF) {
711 wl1271_error("cannot go into PLT state because not "
712 "in off state: %d", wl->state);
713 ret = -EBUSY;
714 goto out;
715 }
716
9ccd9217
JO		 717 while (retries) {
718 retries--;
719 ret = wl1271_chip_wakeup(wl);
720 if (ret < 0)
721 goto power_off;
f5fc0f86 722
9ccd9217
JO		 723 ret = wl1271_boot(wl);
724 if (ret < 0)
725 goto power_off;
eb5b28d0 726
9ccd9217
JO		 727 ret = wl1271_plt_init(wl);
728 if (ret < 0)
729 goto irq_disable;
bd5ea18f 730
9ccd9217
JO		 731 wl->state = WL1271_STATE_PLT;
732 wl1271_notice("firmware booted in PLT mode (%s)",
733 wl->chip.fw_ver);
734 goto out;
eb5b28d0 735
9ccd9217
JO		 736irq_disable:
737 wl1271_disable_interrupts(wl);
738 mutex_unlock(&wl->mutex);
739 /* Unlocking the mutex in the middle of handling is
740 inherently unsafe. In this case we deem it safe to do,
741 because we need to let any possibly pending IRQ out of
742 the system (and while we are WL1271_STATE_OFF the IRQ
743 work function will not do anything.) Also, any other
744 possible concurrent operations will fail due to the
745 current state, hence the wl1271 struct should be safe. */
746 cancel_work_sync(&wl->irq_work);
747 mutex_lock(&wl->mutex);
748power_off:
749 wl1271_power_off(wl);
750 }
f5fc0f86 751
9ccd9217
JO		 752 wl1271_error("firmware boot in PLT mode failed despite %d retries",
753 WL1271_BOOT_RETRIES);
f5fc0f86
LC		 754out:
755 mutex_unlock(&wl->mutex);
756
757 return ret;
758}
759
760int wl1271_plt_stop(struct wl1271 *wl)
761{
762 int ret = 0;
763
764 mutex_lock(&wl->mutex);
765
766 wl1271_notice("power down");
767
768 if (wl->state != WL1271_STATE_PLT) {
769 wl1271_error("cannot power down because not in PLT "
770 "state: %d", wl->state);
771 ret = -EBUSY;
772 goto out;
773 }
774
775 wl1271_disable_interrupts(wl);
776 wl1271_power_off(wl);
777
778 wl->state = WL1271_STATE_OFF;
bd5ea18f 779 wl->rx_counter = 0;
f5fc0f86
LC		 780
781out:
782 mutex_unlock(&wl->mutex);
783
784 return ret;
785}
786
787
788static int wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
789{
790 struct wl1271 *wl = hw->priv;
830fb67b
JO		 791 struct ieee80211_conf *conf = &hw->conf;
792 struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb);
793 struct ieee80211_sta *sta = txinfo->control.sta;
794 unsigned long flags;
f5fc0f86 795
830fb67b
JO		 796 /* peek into the rates configured in the STA entry */
797 spin_lock_irqsave(&wl->wl_lock, flags);
798 if (sta && sta->supp_rates[conf->channel->band] != wl->sta_rate_set) {
799 wl->sta_rate_set = sta->supp_rates[conf->channel->band];
800 set_bit(WL1271_FLAG_STA_RATES_CHANGED, &wl->flags);
801 }
802 spin_unlock_irqrestore(&wl->wl_lock, flags);
803
804 /* queue the packet */
f5fc0f86
LC		 805 skb_queue_tail(&wl->tx_queue, skb);
806
807 /*
808 * The chip specific setup must run before the first TX packet -
809 * before that, the tx_work will not be initialized!
810 */
811
a64b07e8 812 ieee80211_queue_work(wl->hw, &wl->tx_work);
f5fc0f86
LC		 813
814 /*
815 * The workqueue is slow to process the tx_queue and we need stop
816 * the queue here, otherwise the queue will get too long.
817 */
06f7bc7d
JO		 818 if (skb_queue_len(&wl->tx_queue) >= WL1271_TX_QUEUE_HIGH_WATERMARK) {
819 wl1271_debug(DEBUG_TX, "op_tx: stopping queues");
f5fc0f86 820
06f7bc7d
JO		 821 spin_lock_irqsave(&wl->wl_lock, flags);
822 ieee80211_stop_queues(wl->hw);
71449f8d 823 set_bit(WL1271_FLAG_TX_QUEUE_STOPPED, &wl->flags);
06f7bc7d 824 spin_unlock_irqrestore(&wl->wl_lock, flags);
f5fc0f86
LC		 825 }
826
827 return NETDEV_TX_OK;
828}
829
01c09162
JO		 830static int wl1271_dev_notify(struct notifier_block *me, unsigned long what,
831 void *arg)
832{
833 struct net_device *dev;
834 struct wireless_dev *wdev;
835 struct wiphy *wiphy;
836 struct ieee80211_hw *hw;
837 struct wl1271 *wl;
838 struct wl1271 *wl_temp;
839 struct in_device *idev;
840 struct in_ifaddr *ifa = arg;
841 int ret = 0;
842
843 /* FIXME: this ugly function should probably be implemented in the
844 * mac80211, and here should only be a simple callback handling actual
845 * setting of the filters. Now we need to dig up references to
846 * various structures to gain access to what we need.
847 * Also, because of this, there is no "initial" setting of the filter
848 * in "op_start", because we don't want to dig up struct net_device
849 * there - the filter will be set upon first change of the interface
850 * IP address. */
851
852 dev = ifa->ifa_dev->dev;
853
854 wdev = dev->ieee80211_ptr;
855 if (wdev == NULL)
17d7265c 856 return NOTIFY_DONE;
01c09162
JO		 857
858 wiphy = wdev->wiphy;
859 if (wiphy == NULL)
17d7265c 860 return NOTIFY_DONE;
01c09162
JO		 861
862 hw = wiphy_priv(wiphy);
863 if (hw == NULL)
17d7265c 864 return NOTIFY_DONE;
01c09162
JO		 865
866 /* Check that the interface is one supported by this driver. */
867 wl_temp = hw->priv;
868 list_for_each_entry(wl, &wl_list, list) {
869 if (wl == wl_temp)
870 break;
871 }
872 if (wl == NULL)
17d7265c 873 return NOTIFY_DONE;
01c09162
JO		 874
875 /* Get the interface IP address for the device. "ifa" will become
876 NULL if:
877 - there is no IPV4 protocol address configured
878 - there are multiple (virtual) IPV4 addresses configured
879 When "ifa" is NULL, filtering will be disabled.
880 */
881 ifa = NULL;
882 idev = dev->ip_ptr;
883 if (idev)
884 ifa = idev->ifa_list;
885
886 if (ifa && ifa->ifa_next)
887 ifa = NULL;
888
889 mutex_lock(&wl->mutex);
890
891 if (wl->state == WL1271_STATE_OFF)
892 goto out;
893
894 ret = wl1271_ps_elp_wakeup(wl, false);
895 if (ret < 0)
896 goto out;
897 if (ifa)
898 ret = wl1271_acx_arp_ip_filter(wl, true,
899 (u8 *)&ifa->ifa_address,
900 ACX_IPV4_VERSION);
901 else
902 ret = wl1271_acx_arp_ip_filter(wl, false, NULL,
903 ACX_IPV4_VERSION);
904 wl1271_ps_elp_sleep(wl);
905
906out:
907 mutex_unlock(&wl->mutex);
908
17d7265c 909 return NOTIFY_OK;
01c09162
JO		 910}
911
912static struct notifier_block wl1271_dev_notifier = {
913 .notifier_call = wl1271_dev_notify,
914};
915
916
f5fc0f86 917static int wl1271_op_start(struct ieee80211_hw *hw)
1b72aecd
JO		 918{
919 wl1271_debug(DEBUG_MAC80211, "mac80211 start");
920
921 /*
922 * We have to delay the booting of the hardware because
923 * we need to know the local MAC address before downloading and
924 * initializing the firmware. The MAC address cannot be changed
925 * after boot, and without the proper MAC address, the firmware
926 * will not function properly.
927 *
928 * The MAC address is first known when the corresponding interface
929 * is added. That is where we will initialize the hardware.
930 */
931
932 return 0;
933}
934
935static void wl1271_op_stop(struct ieee80211_hw *hw)
936{
937 wl1271_debug(DEBUG_MAC80211, "mac80211 stop");
938}
939
940static int wl1271_op_add_interface(struct ieee80211_hw *hw,
941 struct ieee80211_vif *vif)
f5fc0f86
LC		 942{
943 struct wl1271 *wl = hw->priv;
9ccd9217 944 int retries = WL1271_BOOT_RETRIES;
f5fc0f86
LC		 945 int ret = 0;
946
1b72aecd
JO		 947 wl1271_debug(DEBUG_MAC80211, "mac80211 add interface type %d mac %pM",
948 vif->type, vif->addr);
f5fc0f86
LC		 949
950 mutex_lock(&wl->mutex);
1b72aecd
JO		 951 if (wl->vif) {
952 ret = -EBUSY;
953 goto out;
954 }
955
956 wl->vif = vif;
957
958 switch (vif->type) {
959 case NL80211_IFTYPE_STATION:
960 wl->bss_type = BSS_TYPE_STA_BSS;
961 break;
962 case NL80211_IFTYPE_ADHOC:
963 wl->bss_type = BSS_TYPE_IBSS;
964 break;
965 default:
966 ret = -EOPNOTSUPP;
967 goto out;
968 }
969
970 memcpy(wl->mac_addr, vif->addr, ETH_ALEN);
f5fc0f86
LC		 971
972 if (wl->state != WL1271_STATE_OFF) {
973 wl1271_error("cannot start because not in off state: %d",
974 wl->state);
975 ret = -EBUSY;
976 goto out;
977 }
978
9ccd9217
JO		 979 while (retries) {
980 retries--;
981 ret = wl1271_chip_wakeup(wl);
982 if (ret < 0)
983 goto power_off;
f5fc0f86 984
9ccd9217
JO		 985 ret = wl1271_boot(wl);
986 if (ret < 0)
987 goto power_off;
f5fc0f86 988
9ccd9217
JO		 989 ret = wl1271_hw_init(wl);
990 if (ret < 0)
991 goto irq_disable;
f5fc0f86 992
9ccd9217
JO		 993 wl->state = WL1271_STATE_ON;
994 wl1271_info("firmware booted (%s)", wl->chip.fw_ver);
995 goto out;
eb5b28d0 996
9ccd9217
JO		 997irq_disable:
998 wl1271_disable_interrupts(wl);
999 mutex_unlock(&wl->mutex);
1000 /* Unlocking the mutex in the middle of handling is
1001 inherently unsafe. In this case we deem it safe to do,
1002 because we need to let any possibly pending IRQ out of
1003 the system (and while we are WL1271_STATE_OFF the IRQ
1004 work function will not do anything.) Also, any other
1005 possible concurrent operations will fail due to the
1006 current state, hence the wl1271 struct should be safe. */
1007 cancel_work_sync(&wl->irq_work);
1008 mutex_lock(&wl->mutex);
1009power_off:
1010 wl1271_power_off(wl);
1011 }
eb5b28d0 1012
9ccd9217
JO		 1013 wl1271_error("firmware boot failed despite %d retries",
1014 WL1271_BOOT_RETRIES);
eb5b28d0 1015out:
f5fc0f86
LC		 1016 mutex_unlock(&wl->mutex);
1017
01c09162
JO		 1018 if (!ret) {
1019 list_add(&wl->list, &wl_list);
1020 register_inetaddr_notifier(&wl1271_dev_notifier);
1021 }
1022
f5fc0f86
LC		 1023 return ret;
1024}
1025
1b72aecd
JO		 1026static void wl1271_op_remove_interface(struct ieee80211_hw *hw,
1027 struct ieee80211_vif *vif)
f5fc0f86
LC		 1028{
1029 struct wl1271 *wl = hw->priv;
1030 int i;
1031
2ea9fb3d
JO		 1032 unregister_inetaddr_notifier(&wl1271_dev_notifier);
1033
1b72aecd
JO		 1034 mutex_lock(&wl->mutex);
1035 wl1271_debug(DEBUG_MAC80211, "mac80211 remove interface");
f5fc0f86 1036
1b72aecd 1037 wl1271_info("down");
f5fc0f86 1038
01c09162
JO		 1039 list_del(&wl->list);
1040
f5fc0f86
LC		 1041 WARN_ON(wl->state != WL1271_STATE_ON);
1042
71449f8d 1043 if (test_and_clear_bit(WL1271_FLAG_SCANNING, &wl->flags)) {
f5fc0f86
LC		 1044 mutex_unlock(&wl->mutex);
1045 ieee80211_scan_completed(wl->hw, true);
1046 mutex_lock(&wl->mutex);
f5fc0f86
LC		 1047 }
1048
1049 wl->state = WL1271_STATE_OFF;
1050
1051 wl1271_disable_interrupts(wl);
1052
1053 mutex_unlock(&wl->mutex);
1054
1055 cancel_work_sync(&wl->irq_work);
1056 cancel_work_sync(&wl->tx_work);
f5fc0f86
LC		 1057
1058 mutex_lock(&wl->mutex);
1059
1060 /* let's notify MAC80211 about the remaining pending TX frames */
1061 wl1271_tx_flush(wl);
1062 wl1271_power_off(wl);
1063
1064 memset(wl->bssid, 0, ETH_ALEN);
1065 memset(wl->ssid, 0, IW_ESSID_MAX_SIZE + 1);
1066 wl->ssid_len = 0;
f5fc0f86 1067 wl->bss_type = MAX_BSS_TYPE;
8a5a37a6 1068 wl->band = IEEE80211_BAND_2GHZ;
f5fc0f86
LC		 1069
1070 wl->rx_counter = 0;
19ad0715 1071 wl->psm_entry_retry = 0;
f5fc0f86
LC		 1072 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
1073 wl->tx_blocks_available = 0;
1074 wl->tx_results_count = 0;
1075 wl->tx_packets_count = 0;
ac4e4ce5 1076 wl->tx_security_last_seq = 0;
04e36fc5 1077 wl->tx_security_seq = 0;
f5fc0f86
LC		 1078 wl->time_offset = 0;
1079 wl->session_counter = 0;
830fb67b
JO		 1080 wl->rate_set = CONF_TX_RATE_MASK_BASIC;
1081 wl->sta_rate_set = 0;
1082 wl->flags = 0;
1b72aecd 1083 wl->vif = NULL;
14b228a0 1084 wl->filters = 0;
d6e19d13 1085
f5fc0f86
LC		 1086 for (i = 0; i < NUM_TX_QUEUES; i++)
1087 wl->tx_blocks_freed[i] = 0;
1088
1089 wl1271_debugfs_reset(wl);
1090 mutex_unlock(&wl->mutex);
1091}
1092
14b228a0
JO		 1093static void wl1271_configure_filters(struct wl1271 *wl, unsigned int filters)
1094{
1095 wl->rx_config = WL1271_DEFAULT_RX_CONFIG;
1096 wl->rx_filter = WL1271_DEFAULT_RX_FILTER;
1097
1098 /* combine requested filters with current filter config */
1099 filters = wl->filters | filters;
1100
1101 wl1271_debug(DEBUG_FILTERS, "RX filters set: ");
1102
1103 if (filters & FIF_PROMISC_IN_BSS) {
1104 wl1271_debug(DEBUG_FILTERS, " - FIF_PROMISC_IN_BSS");
1105 wl->rx_config &= ~CFG_UNI_FILTER_EN;
1106 wl->rx_config |= CFG_BSSID_FILTER_EN;
1107 }
1108 if (filters & FIF_BCN_PRBRESP_PROMISC) {
1109 wl1271_debug(DEBUG_FILTERS, " - FIF_BCN_PRBRESP_PROMISC");
1110 wl->rx_config &= ~CFG_BSSID_FILTER_EN;
1111 wl->rx_config &= ~CFG_SSID_FILTER_EN;
1112 }
1113 if (filters & FIF_OTHER_BSS) {
1114 wl1271_debug(DEBUG_FILTERS, " - FIF_OTHER_BSS");
1115 wl->rx_config &= ~CFG_BSSID_FILTER_EN;
1116 }
1117 if (filters & FIF_CONTROL) {
1118 wl1271_debug(DEBUG_FILTERS, " - FIF_CONTROL");
1119 wl->rx_filter |= CFG_RX_CTL_EN;
1120 }
1121 if (filters & FIF_FCSFAIL) {
1122 wl1271_debug(DEBUG_FILTERS, " - FIF_FCSFAIL");
1123 wl->rx_filter |= CFG_RX_FCS_ERROR;
1124 }
1125}
1126
c7f43e45
LC		 1127static int wl1271_join_channel(struct wl1271 *wl, int channel)
1128{
e0d8bbf0 1129 int ret = 0;
c7f43e45
LC		 1130 /* we need to use a dummy BSSID for now */
1131 static const u8 dummy_bssid[ETH_ALEN] = { 0x0b, 0xad, 0xde,
1132 0xad, 0xbe, 0xef };
1133
c7f43e45
LC		 1134 wl->channel = channel;
1135 memcpy(wl->bssid, dummy_bssid, ETH_ALEN);
1136
14b228a0
JO		 1137 /* pass through frames from all BSS */
1138 wl1271_configure_filters(wl, FIF_OTHER_BSS);
1139
15305498
JO		 1140 /* the dummy join is performed always with STATION BSS type to allow
1141 also ad-hoc mode to listen to the surroundings without sending any
1142 beacons yet. */
1143 ret = wl1271_cmd_join(wl, BSS_TYPE_STA_BSS);
c7f43e45
LC		 1144 if (ret < 0)
1145 goto out;
1146
71449f8d 1147 set_bit(WL1271_FLAG_JOINED, &wl->flags);
c7f43e45
LC		 1148
1149out:
1150 return ret;
1151}
1152
1153static int wl1271_unjoin_channel(struct wl1271 *wl)
1154{
1155 int ret;
1156
1157 /* to stop listening to a channel, we disconnect */
1158 ret = wl1271_cmd_disconnect(wl);
1159 if (ret < 0)
1160 goto out;
1161
71449f8d 1162 clear_bit(WL1271_FLAG_JOINED, &wl->flags);
c7f43e45
LC		 1163 wl->channel = 0;
1164 memset(wl->bssid, 0, ETH_ALEN);
14b228a0
JO		 1165
1166 /* stop filterting packets based on bssid */
1167 wl1271_configure_filters(wl, FIF_OTHER_BSS);
c7f43e45
LC		 1168
1169out:
1170 return ret;
1171}
1172
f5fc0f86
LC		 1173static int wl1271_op_config(struct ieee80211_hw *hw, u32 changed)
1174{
1175 struct wl1271 *wl = hw->priv;
1176 struct ieee80211_conf *conf = &hw->conf;
1177 int channel, ret = 0;
1178
1179 channel = ieee80211_frequency_to_channel(conf->channel->center_freq);
1180
c7f43e45 1181 wl1271_debug(DEBUG_MAC80211, "mac80211 config ch %d psm %s power %d %s",
f5fc0f86
LC		 1182 channel,
1183 conf->flags & IEEE80211_CONF_PS ? "on" : "off",
c7f43e45
LC		 1184 conf->power_level,
1185 conf->flags & IEEE80211_CONF_IDLE ? "idle" : "in use");
f5fc0f86
LC		 1186
1187 mutex_lock(&wl->mutex);
1188
8a5a37a6
JO		 1189 wl->band = conf->channel->band;
1190
f5fc0f86
LC		 1191 ret = wl1271_ps_elp_wakeup(wl, false);
1192 if (ret < 0)
1193 goto out;
1194
c7f43e45 1195 if (changed & IEEE80211_CONF_CHANGE_IDLE) {
71449f8d
JO		 1196 if (conf->flags & IEEE80211_CONF_IDLE &&
1197 test_bit(WL1271_FLAG_JOINED, &wl->flags))
c7f43e45 1198 wl1271_unjoin_channel(wl);
8f648c00 1199 else if (!(conf->flags & IEEE80211_CONF_IDLE))
c7f43e45 1200 wl1271_join_channel(wl, channel);
a6fe2313
JO		 1201
1202 if (conf->flags & IEEE80211_CONF_IDLE) {
830fb67b
JO		 1203 wl->rate_set = CONF_TX_RATE_MASK_BASIC;
1204 wl->sta_rate_set = 0;
1205 wl1271_acx_rate_policies(wl);
a6fe2313 1206 }
f5fc0f86
LC		 1207 }
1208
c7f43e45 1209 /* if the channel changes while joined, join again */
ddb01a5b
JO		 1210 if (channel != wl->channel &&
1211 test_bit(WL1271_FLAG_JOINED, &wl->flags)) {
1212 wl->channel = channel;
1213 /* FIXME: maybe use CMD_CHANNEL_SWITCH for this? */
15305498 1214 ret = wl1271_cmd_join(wl, wl->bss_type);
ddb01a5b
JO		 1215 if (ret < 0)
1216 wl1271_warning("cmd join to update channel failed %d",
1217 ret);
1218 } else
1219 wl->channel = channel;
c7f43e45 1220
71449f8d
JO		 1221 if (conf->flags & IEEE80211_CONF_PS &&
1222 !test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) {
1223 set_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags);
f5fc0f86
LC		 1224
1225 /*
1226 * We enter PSM only if we're already associated.
1227 * If we're not, we'll enter it when joining an SSID,
1228 * through the bss_info_changed() hook.
1229 */
830fb67b 1230 if (test_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags)) {
18f8d468 1231 wl1271_debug(DEBUG_PSM, "psm enabled");
d8c42c0c
JO		 1232 ret = wl1271_ps_set_mode(wl, STATION_POWER_SAVE_MODE,
1233 true);
af5e084b 1234 }
f5fc0f86 1235 } else if (!(conf->flags & IEEE80211_CONF_PS) &&
71449f8d 1236 test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags)) {
18f8d468 1237 wl1271_debug(DEBUG_PSM, "psm disabled");
f5fc0f86 1238
71449f8d 1239 clear_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags);
f5fc0f86 1240
71449f8d 1241 if (test_bit(WL1271_FLAG_PSM, &wl->flags))
d8c42c0c
JO		 1242 ret = wl1271_ps_set_mode(wl, STATION_ACTIVE_MODE,
1243 true);
f5fc0f86
LC		 1244 }
1245
1246 if (conf->power_level != wl->power_level) {
1247 ret = wl1271_acx_tx_power(wl, conf->power_level);
1248 if (ret < 0)
c6317a54 1249 goto out_sleep;
f5fc0f86
LC		 1250
1251 wl->power_level = conf->power_level;
1252 }
1253
1254out_sleep:
1255 wl1271_ps_elp_sleep(wl);
1256
1257out:
1258 mutex_unlock(&wl->mutex);
1259
1260 return ret;
1261}
1262
b54853f1
JO		 1263struct wl1271_filter_params {
1264 bool enabled;
1265 int mc_list_length;
1266 u8 mc_list[ACX_MC_ADDRESS_GROUP_MAX][ETH_ALEN];
1267};
1268
22bedad3
JP		 1269static u64 wl1271_op_prepare_multicast(struct ieee80211_hw *hw,
1270 struct netdev_hw_addr_list *mc_list)
c87dec9f 1271{
c87dec9f 1272 struct wl1271_filter_params *fp;
22bedad3 1273 struct netdev_hw_addr *ha;
c87dec9f 1274
74441130 1275 fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
c87dec9f
JO		 1276 if (!fp) {
1277 wl1271_error("Out of memory setting filters.");
1278 return 0;
1279 }
1280
1281 /* update multicast filtering parameters */
c87dec9f 1282 fp->mc_list_length = 0;
22bedad3
JP		 1283 if (netdev_hw_addr_list_count(mc_list) > ACX_MC_ADDRESS_GROUP_MAX) {
1284 fp->enabled = false;
1285 } else {
1286 fp->enabled = true;
1287 netdev_hw_addr_list_for_each(ha, mc_list) {
c87dec9f 1288 memcpy(fp->mc_list[fp->mc_list_length],
22bedad3 1289 ha->addr, ETH_ALEN);
c87dec9f 1290 fp->mc_list_length++;
22bedad3 1291 }
c87dec9f
JO		 1292 }
1293
b54853f1 1294 return (u64)(unsigned long)fp;
c87dec9f 1295}
f5fc0f86 1296
b54853f1
JO		 1297#define WL1271_SUPPORTED_FILTERS (FIF_PROMISC_IN_BSS | \
1298 FIF_ALLMULTI | \
1299 FIF_FCSFAIL | \
1300 FIF_BCN_PRBRESP_PROMISC | \
1301 FIF_CONTROL | \
1302 FIF_OTHER_BSS)
1303
f5fc0f86
LC		 1304static void wl1271_op_configure_filter(struct ieee80211_hw *hw,
1305 unsigned int changed,
c87dec9f 1306 unsigned int *total, u64 multicast)
f5fc0f86 1307{
b54853f1 1308 struct wl1271_filter_params *fp = (void *)(unsigned long)multicast;
f5fc0f86 1309 struct wl1271 *wl = hw->priv;
b54853f1 1310 int ret;
f5fc0f86
LC		 1311
1312 wl1271_debug(DEBUG_MAC80211, "mac80211 configure filter");
1313
b54853f1
JO		 1314 mutex_lock(&wl->mutex);
1315
1316 if (wl->state == WL1271_STATE_OFF)
1317 goto out;
1318
1319 ret = wl1271_ps_elp_wakeup(wl, false);
1320 if (ret < 0)
1321 goto out;
1322
f5fc0f86
LC		 1323 *total &= WL1271_SUPPORTED_FILTERS;
1324 changed &= WL1271_SUPPORTED_FILTERS;
1325
b54853f1
JO		 1326 if (*total & FIF_ALLMULTI)
1327 ret = wl1271_acx_group_address_tbl(wl, false, NULL, 0);
1328 else if (fp)
1329 ret = wl1271_acx_group_address_tbl(wl, fp->enabled,
1330 fp->mc_list,
1331 fp->mc_list_length);
1332 if (ret < 0)
1333 goto out_sleep;
f5fc0f86 1334
b54853f1
JO		 1335 /* determine, whether supported filter values have changed */
1336 if (changed == 0)
1337 goto out_sleep;
c87dec9f 1338
14b228a0
JO		 1339 /* configure filters */
1340 wl->filters = *total;
1341 wl1271_configure_filters(wl, 0);
1342
b54853f1
JO		 1343 /* apply configured filters */
1344 ret = wl1271_acx_rx_config(wl, wl->rx_config, wl->rx_filter);
1345 if (ret < 0)
1346 goto out_sleep;
1347
1348out_sleep:
1349 wl1271_ps_elp_sleep(wl);
1350
1351out:
1352 mutex_unlock(&wl->mutex);
14b228a0 1353 kfree(fp);
f5fc0f86
LC		 1354}
1355
1356static int wl1271_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
1357 struct ieee80211_vif *vif,
1358 struct ieee80211_sta *sta,
1359 struct ieee80211_key_conf *key_conf)
1360{
1361 struct wl1271 *wl = hw->priv;
1362 const u8 *addr;
1363 int ret;
ac4e4ce5
JO		 1364 u32 tx_seq_32 = 0;
1365 u16 tx_seq_16 = 0;
f5fc0f86
LC		 1366 u8 key_type;
1367
1368 static const u8 bcast_addr[ETH_ALEN] =
1369 { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1370
1371 wl1271_debug(DEBUG_MAC80211, "mac80211 set key");
1372
1373 addr = sta ? sta->addr : bcast_addr;
1374
1375 wl1271_debug(DEBUG_CRYPT, "CMD: 0x%x", cmd);
1376 wl1271_dump(DEBUG_CRYPT, "ADDR: ", addr, ETH_ALEN);
1377 wl1271_debug(DEBUG_CRYPT, "Key: algo:0x%x, id:%d, len:%d flags 0x%x",
1378 key_conf->alg, key_conf->keyidx,
1379 key_conf->keylen, key_conf->flags);
1380 wl1271_dump(DEBUG_CRYPT, "KEY: ", key_conf->key, key_conf->keylen);
1381
1382 if (is_zero_ether_addr(addr)) {
1383 /* We dont support TX only encryption */
1384 ret = -EOPNOTSUPP;
1385 goto out;
1386 }
1387
1388 mutex_lock(&wl->mutex);
1389
1390 ret = wl1271_ps_elp_wakeup(wl, false);
1391 if (ret < 0)
1392 goto out_unlock;
1393
1394 switch (key_conf->alg) {
1395 case ALG_WEP:
1396 key_type = KEY_WEP;
1397
1398 key_conf->hw_key_idx = key_conf->keyidx;
1399 break;
1400 case ALG_TKIP:
1401 key_type = KEY_TKIP;
1402
1403 key_conf->hw_key_idx = key_conf->keyidx;
04e36fc5
JO		 1404 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
1405 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
f5fc0f86
LC		 1406 break;
1407 case ALG_CCMP:
1408 key_type = KEY_AES;
1409
1410 key_conf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
04e36fc5
JO		 1411 tx_seq_32 = WL1271_TX_SECURITY_HI32(wl->tx_security_seq);
1412 tx_seq_16 = WL1271_TX_SECURITY_LO16(wl->tx_security_seq);
f5fc0f86
LC		 1413 break;
1414 default:
1415 wl1271_error("Unknown key algo 0x%x", key_conf->alg);
1416
1417 ret = -EOPNOTSUPP;
1418 goto out_sleep;
1419 }
1420
1421 switch (cmd) {
1422 case SET_KEY:
1423 ret = wl1271_cmd_set_key(wl, KEY_ADD_OR_REPLACE,
1424 key_conf->keyidx, key_type,
1425 key_conf->keylen, key_conf->key,
ac4e4ce5 1426 addr, tx_seq_32, tx_seq_16);
f5fc0f86
LC		 1427 if (ret < 0) {
1428 wl1271_error("Could not add or replace key");
1429 goto out_sleep;
1430 }
ee444cf0
JO		 1431
1432 /* the default WEP key needs to be configured at least once */
1433 if (key_type == KEY_WEP) {
1434 ret = wl1271_cmd_set_default_wep_key(wl,
1435 wl->default_key);
1436 if (ret < 0)
1437 goto out_sleep;
1438 }
f5fc0f86
LC		 1439 break;
1440
1441 case DISABLE_KEY:
fddc7dd7
JO		 1442 /* The wl1271 does not allow to remove unicast keys - they
1443 will be cleared automatically on next CMD_JOIN. Ignore the
1444 request silently, as we dont want the mac80211 to emit
1445 an error message. */
1446 if (!is_broadcast_ether_addr(addr))
1447 break;
1448
f5fc0f86
LC		 1449 ret = wl1271_cmd_set_key(wl, KEY_REMOVE,
1450 key_conf->keyidx, key_type,
1451 key_conf->keylen, key_conf->key,
ac4e4ce5 1452 addr, 0, 0);
f5fc0f86
LC		 1453 if (ret < 0) {
1454 wl1271_error("Could not remove key");
1455 goto out_sleep;
1456 }
1457 break;
1458
1459 default:
1460 wl1271_error("Unsupported key cmd 0x%x", cmd);
1461 ret = -EOPNOTSUPP;
1462 goto out_sleep;
1463
1464 break;
1465 }
1466
1467out_sleep:
1468 wl1271_ps_elp_sleep(wl);
1469
1470out_unlock:
1471 mutex_unlock(&wl->mutex);
1472
1473out:
1474 return ret;
1475}
1476
1477static int wl1271_op_hw_scan(struct ieee80211_hw *hw,
1478 struct cfg80211_scan_request *req)
1479{
1480 struct wl1271 *wl = hw->priv;
1481 int ret;
1482 u8 *ssid = NULL;
abb0b3bf 1483 size_t len = 0;
f5fc0f86
LC		 1484
1485 wl1271_debug(DEBUG_MAC80211, "mac80211 hw scan");
1486
1487 if (req->n_ssids) {
1488 ssid = req->ssids[0].ssid;
abb0b3bf 1489 len = req->ssids[0].ssid_len;
f5fc0f86
LC		 1490 }
1491
1492 mutex_lock(&wl->mutex);
1493
1494 ret = wl1271_ps_elp_wakeup(wl, false);
1495 if (ret < 0)
1496 goto out;
1497
abb0b3bf 1498 if (wl1271_11a_enabled())
818e3063
KV		 1499 ret = wl1271_cmd_scan(hw->priv, ssid, len,
1500 req->ie, req->ie_len, 1, 0,
abb0b3bf
TP		 1501 WL1271_SCAN_BAND_DUAL, 3);
1502 else
818e3063
KV		 1503 ret = wl1271_cmd_scan(hw->priv, ssid, len,
1504 req->ie, req->ie_len, 1, 0,
abb0b3bf 1505 WL1271_SCAN_BAND_2_4_GHZ, 3);
f5fc0f86
LC		 1506
1507 wl1271_ps_elp_sleep(wl);
1508
1509out:
1510 mutex_unlock(&wl->mutex);
1511
1512 return ret;
1513}
1514
1515static int wl1271_op_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
1516{
1517 struct wl1271 *wl = hw->priv;
1518 int ret;
1519
1520 mutex_lock(&wl->mutex);
1521
1522 ret = wl1271_ps_elp_wakeup(wl, false);
1523 if (ret < 0)
1524 goto out;
1525
1526 ret = wl1271_acx_rts_threshold(wl, (u16) value);
1527 if (ret < 0)
1528 wl1271_warning("wl1271_op_set_rts_threshold failed: %d", ret);
1529
1530 wl1271_ps_elp_sleep(wl);
1531
1532out:
1533 mutex_unlock(&wl->mutex);
1534
1535 return ret;
1536}
1537
30240fc7
JO		 1538static void wl1271_ssid_set(struct wl1271 *wl, struct sk_buff *beacon)
1539{
1540 u8 *ptr = beacon->data +
1541 offsetof(struct ieee80211_mgmt, u.beacon.variable);
1542
1543 /* find the location of the ssid in the beacon */
1544 while (ptr < beacon->data + beacon->len) {
1545 if (ptr[0] == WLAN_EID_SSID) {
1546 wl->ssid_len = ptr[1];
1547 memcpy(wl->ssid, ptr+2, wl->ssid_len);
1548 return;
1549 }
1550 ptr += ptr[1];
1551 }
1552 wl1271_error("ad-hoc beacon template has no SSID!\n");
1553}
1554
f5fc0f86
LC		 1555static void wl1271_op_bss_info_changed(struct ieee80211_hw *hw,
1556 struct ieee80211_vif *vif,
1557 struct ieee80211_bss_conf *bss_conf,
1558 u32 changed)
1559{
1560 enum wl1271_cmd_ps_mode mode;
1561 struct wl1271 *wl = hw->priv;
8bf29b0e 1562 bool do_join = false;
f5fc0f86
LC		 1563 int ret;
1564
1565 wl1271_debug(DEBUG_MAC80211, "mac80211 bss info changed");
1566
1567 mutex_lock(&wl->mutex);
1568
1569 ret = wl1271_ps_elp_wakeup(wl, false);
1570 if (ret < 0)
1571 goto out;
1572
e0d8bbf0
JO		 1573 if (wl->bss_type == BSS_TYPE_IBSS) {
1574 /* FIXME: This implements rudimentary ad-hoc support -
1575 proper templates are on the wish list and notification
1576 on when they change. This patch will update the templates
30240fc7 1577 on every call to this function. */
e0d8bbf0
JO		 1578 struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
1579
1580 if (beacon) {
1581 struct ieee80211_hdr *hdr;
30240fc7
JO		 1582
1583 wl1271_ssid_set(wl, beacon);
e0d8bbf0
JO		 1584 ret = wl1271_cmd_template_set(wl, CMD_TEMPL_BEACON,
1585 beacon->data,
1586 beacon->len);
1587
1588 if (ret < 0) {
1589 dev_kfree_skb(beacon);
1590 goto out_sleep;
1591 }
1592
1593 hdr = (struct ieee80211_hdr *) beacon->data;
1594 hdr->frame_control = cpu_to_le16(
1595 IEEE80211_FTYPE_MGMT |
1596 IEEE80211_STYPE_PROBE_RESP);
1597
1598 ret = wl1271_cmd_template_set(wl,
1599 CMD_TEMPL_PROBE_RESPONSE,
1600 beacon->data,
1601 beacon->len);
1602 dev_kfree_skb(beacon);
1603 if (ret < 0)
1604 goto out_sleep;
8bf29b0e
JO		 1605
1606 /* Need to update the SSID (for filtering etc) */
1607 do_join = true;
e0d8bbf0
JO		 1608 }
1609 }
1610
30240fc7
JO		 1611 if ((changed & BSS_CHANGED_BSSID) &&
1612 /*
1613 * Now we know the correct bssid, so we send a new join command
1614 * and enable the BSSID filter
1615 */
1616 memcmp(wl->bssid, bss_conf->bssid, ETH_ALEN)) {
30240fc7 1617 memcpy(wl->bssid, bss_conf->bssid, ETH_ALEN);
a0cb7be4 1618
30240fc7 1619 ret = wl1271_cmd_build_null_data(wl);
a0cb7be4 1620 if (ret < 0)
30240fc7 1621 goto out_sleep;
30240fc7 1622
14b228a0
JO		 1623 /* filter out all packets not from this BSSID */
1624 wl1271_configure_filters(wl, 0);
1625
8bf29b0e
JO		 1626 /* Need to update the BSSID (for filtering etc) */
1627 do_join = true;
30240fc7
JO		 1628 }
1629
f5fc0f86
LC		 1630 if (changed & BSS_CHANGED_ASSOC) {
1631 if (bss_conf->assoc) {
1632 wl->aid = bss_conf->aid;
830fb67b 1633 set_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags);
f5fc0f86 1634
ae751bab
LC		 1635 /*
1636 * with wl1271, we don't need to update the
1637 * beacon_int and dtim_period, because the firmware
1638 * updates it by itself when the first beacon is
1639 * received after a join.
1640 */
f5fc0f86
LC		 1641 ret = wl1271_cmd_build_ps_poll(wl, wl->aid);
1642 if (ret < 0)
1643 goto out_sleep;
1644
1645 ret = wl1271_acx_aid(wl, wl->aid);
1646 if (ret < 0)
1647 goto out_sleep;
1648
1649 /* If we want to go in PSM but we're not there yet */
71449f8d
JO		 1650 if (test_bit(WL1271_FLAG_PSM_REQUESTED, &wl->flags) &&
1651 !test_bit(WL1271_FLAG_PSM, &wl->flags)) {
f5fc0f86 1652 mode = STATION_POWER_SAVE_MODE;
d8c42c0c 1653 ret = wl1271_ps_set_mode(wl, mode, true);
f5fc0f86
LC		 1654 if (ret < 0)
1655 goto out_sleep;
1656 }
d94cd297
JO		 1657 } else {
1658 /* use defaults when not associated */
830fb67b 1659 clear_bit(WL1271_FLAG_STA_ASSOCIATED, &wl->flags);
d94cd297 1660 wl->aid = 0;
f5fc0f86 1661 }
d94cd297 1662
f5fc0f86 1663 }
8a5a37a6 1664
f5fc0f86
LC		 1665 if (changed & BSS_CHANGED_ERP_SLOT) {
1666 if (bss_conf->use_short_slot)
1667 ret = wl1271_acx_slot(wl, SLOT_TIME_SHORT);
1668 else
1669 ret = wl1271_acx_slot(wl, SLOT_TIME_LONG);
1670 if (ret < 0) {
1671 wl1271_warning("Set slot time failed %d", ret);
1672 goto out_sleep;
1673 }
1674 }
1675
1676 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
1677 if (bss_conf->use_short_preamble)
1678 wl1271_acx_set_preamble(wl, ACX_PREAMBLE_SHORT);
1679 else
1680 wl1271_acx_set_preamble(wl, ACX_PREAMBLE_LONG);
1681 }
1682
1683 if (changed & BSS_CHANGED_ERP_CTS_PROT) {
1684 if (bss_conf->use_cts_prot)
1685 ret = wl1271_acx_cts_protect(wl, CTSPROTECT_ENABLE);
1686 else
1687 ret = wl1271_acx_cts_protect(wl, CTSPROTECT_DISABLE);
1688 if (ret < 0) {
1689 wl1271_warning("Set ctsprotect failed %d", ret);
1690 goto out_sleep;
1691 }
1692 }
1693
8bf29b0e 1694 if (do_join) {
15305498 1695 ret = wl1271_cmd_join(wl, wl->bss_type);
8bf29b0e
JO		 1696 if (ret < 0) {
1697 wl1271_warning("cmd join failed %d", ret);
1698 goto out_sleep;
1699 }
1700 set_bit(WL1271_FLAG_JOINED, &wl->flags);
1701 }
1702
f5fc0f86
LC		 1703out_sleep:
1704 wl1271_ps_elp_sleep(wl);
1705
1706out:
1707 mutex_unlock(&wl->mutex);
1708}
1709
c6999d83
KV		 1710static int wl1271_op_conf_tx(struct ieee80211_hw *hw, u16 queue,
1711 const struct ieee80211_tx_queue_params *params)
1712{
1713 struct wl1271 *wl = hw->priv;
4695dc91 1714 u8 ps_scheme;
c6999d83
KV		 1715 int ret;
1716
1717 mutex_lock(&wl->mutex);
1718
1719 wl1271_debug(DEBUG_MAC80211, "mac80211 conf tx %d", queue);
1720
c82c1dde
KV		 1721 ret = wl1271_ps_elp_wakeup(wl, false);
1722 if (ret < 0)
1723 goto out;
1724
b43316db 1725 /* the txop is confed in units of 32us by the mac80211, we need us */
c6999d83
KV		 1726 ret = wl1271_acx_ac_cfg(wl, wl1271_tx_get_queue(queue),
1727 params->cw_min, params->cw_max,
b43316db 1728 params->aifs, params->txop << 5);
c6999d83 1729 if (ret < 0)
c82c1dde 1730 goto out_sleep;
c6999d83 1731
4695dc91
KV		 1732 if (params->uapsd)
1733 ps_scheme = CONF_PS_SCHEME_UPSD_TRIGGER;
1734 else
1735 ps_scheme = CONF_PS_SCHEME_LEGACY;
1736
c6999d83
KV		 1737 ret = wl1271_acx_tid_cfg(wl, wl1271_tx_get_queue(queue),
1738 CONF_CHANNEL_TYPE_EDCF,
1739 wl1271_tx_get_queue(queue),
4695dc91 1740 ps_scheme, CONF_ACK_POLICY_LEGACY, 0, 0);
c6999d83 1741 if (ret < 0)
c82c1dde
KV		 1742 goto out_sleep;
1743
1744out_sleep:
1745 wl1271_ps_elp_sleep(wl);
c6999d83
KV		 1746
1747out:
1748 mutex_unlock(&wl->mutex);
1749
1750 return ret;
1751}
1752
f5fc0f86
LC		 1753
1754/* can't be const, mac80211 writes to this */
1755static struct ieee80211_rate wl1271_rates[] = {
1756 { .bitrate = 10,
2b60100b
JO		 1757 .hw_value = CONF_HW_BIT_RATE_1MBPS,
1758 .hw_value_short = CONF_HW_BIT_RATE_1MBPS, },
f5fc0f86 1759 { .bitrate = 20,
2b60100b
JO		 1760 .hw_value = CONF_HW_BIT_RATE_2MBPS,
1761 .hw_value_short = CONF_HW_BIT_RATE_2MBPS,
f5fc0f86
LC		 1762 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
1763 { .bitrate = 55,
2b60100b
JO		 1764 .hw_value = CONF_HW_BIT_RATE_5_5MBPS,
1765 .hw_value_short = CONF_HW_BIT_RATE_5_5MBPS,
f5fc0f86
LC		 1766 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
1767 { .bitrate = 110,
2b60100b
JO		 1768 .hw_value = CONF_HW_BIT_RATE_11MBPS,
1769 .hw_value_short = CONF_HW_BIT_RATE_11MBPS,
f5fc0f86
LC		 1770 .flags = IEEE80211_RATE_SHORT_PREAMBLE },
1771 { .bitrate = 60,
2b60100b
JO		 1772 .hw_value = CONF_HW_BIT_RATE_6MBPS,
1773 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
f5fc0f86 1774 { .bitrate = 90,
2b60100b
JO		 1775 .hw_value = CONF_HW_BIT_RATE_9MBPS,
1776 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
f5fc0f86 1777 { .bitrate = 120,
2b60100b
JO		 1778 .hw_value = CONF_HW_BIT_RATE_12MBPS,
1779 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
f5fc0f86 1780 { .bitrate = 180,
2b60100b
JO		 1781 .hw_value = CONF_HW_BIT_RATE_18MBPS,
1782 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
f5fc0f86 1783 { .bitrate = 240,
2b60100b
JO		 1784 .hw_value = CONF_HW_BIT_RATE_24MBPS,
1785 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
f5fc0f86 1786 { .bitrate = 360,
2b60100b
JO		 1787 .hw_value = CONF_HW_BIT_RATE_36MBPS,
1788 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
f5fc0f86 1789 { .bitrate = 480,
2b60100b
JO		 1790 .hw_value = CONF_HW_BIT_RATE_48MBPS,
1791 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
f5fc0f86 1792 { .bitrate = 540,
2b60100b
JO		 1793 .hw_value = CONF_HW_BIT_RATE_54MBPS,
1794 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
f5fc0f86
LC		 1795};
1796
1797/* can't be const, mac80211 writes to this */
1798static struct ieee80211_channel wl1271_channels[] = {
a2d0e3f1
LC		 1799 { .hw_value = 1, .center_freq = 2412, .max_power = 25 },
1800 { .hw_value = 2, .center_freq = 2417, .max_power = 25 },
1801 { .hw_value = 3, .center_freq = 2422, .max_power = 25 },
1802 { .hw_value = 4, .center_freq = 2427, .max_power = 25 },
1803 { .hw_value = 5, .center_freq = 2432, .max_power = 25 },
1804 { .hw_value = 6, .center_freq = 2437, .max_power = 25 },
1805 { .hw_value = 7, .center_freq = 2442, .max_power = 25 },
1806 { .hw_value = 8, .center_freq = 2447, .max_power = 25 },
1807 { .hw_value = 9, .center_freq = 2452, .max_power = 25 },
1808 { .hw_value = 10, .center_freq = 2457, .max_power = 25 },
1809 { .hw_value = 11, .center_freq = 2462, .max_power = 25 },
1810 { .hw_value = 12, .center_freq = 2467, .max_power = 25 },
1811 { .hw_value = 13, .center_freq = 2472, .max_power = 25 },
f5fc0f86
LC		 1812};
1813
1814/* can't be const, mac80211 writes to this */
1815static struct ieee80211_supported_band wl1271_band_2ghz = {
1816 .channels = wl1271_channels,
1817 .n_channels = ARRAY_SIZE(wl1271_channels),
1818 .bitrates = wl1271_rates,
1819 .n_bitrates = ARRAY_SIZE(wl1271_rates),
1820};
1821
1ebec3d7
TP		 1822/* 5 GHz data rates for WL1273 */
1823static struct ieee80211_rate wl1271_rates_5ghz[] = {
1824 { .bitrate = 60,
1825 .hw_value = CONF_HW_BIT_RATE_6MBPS,
1826 .hw_value_short = CONF_HW_BIT_RATE_6MBPS, },
1827 { .bitrate = 90,
1828 .hw_value = CONF_HW_BIT_RATE_9MBPS,
1829 .hw_value_short = CONF_HW_BIT_RATE_9MBPS, },
1830 { .bitrate = 120,
1831 .hw_value = CONF_HW_BIT_RATE_12MBPS,
1832 .hw_value_short = CONF_HW_BIT_RATE_12MBPS, },
1833 { .bitrate = 180,
1834 .hw_value = CONF_HW_BIT_RATE_18MBPS,
1835 .hw_value_short = CONF_HW_BIT_RATE_18MBPS, },
1836 { .bitrate = 240,
1837 .hw_value = CONF_HW_BIT_RATE_24MBPS,
1838 .hw_value_short = CONF_HW_BIT_RATE_24MBPS, },
1839 { .bitrate = 360,
1840 .hw_value = CONF_HW_BIT_RATE_36MBPS,
1841 .hw_value_short = CONF_HW_BIT_RATE_36MBPS, },
1842 { .bitrate = 480,
1843 .hw_value = CONF_HW_BIT_RATE_48MBPS,
1844 .hw_value_short = CONF_HW_BIT_RATE_48MBPS, },
1845 { .bitrate = 540,
1846 .hw_value = CONF_HW_BIT_RATE_54MBPS,
1847 .hw_value_short = CONF_HW_BIT_RATE_54MBPS, },
1848};
1849
1850/* 5 GHz band channels for WL1273 */
1851static struct ieee80211_channel wl1271_channels_5ghz[] = {
1852 { .hw_value = 183, .center_freq = 4915},
1853 { .hw_value = 184, .center_freq = 4920},
1854 { .hw_value = 185, .center_freq = 4925},
1855 { .hw_value = 187, .center_freq = 4935},
1856 { .hw_value = 188, .center_freq = 4940},
1857 { .hw_value = 189, .center_freq = 4945},
1858 { .hw_value = 192, .center_freq = 4960},
1859 { .hw_value = 196, .center_freq = 4980},
1860 { .hw_value = 7, .center_freq = 5035},
1861 { .hw_value = 8, .center_freq = 5040},
1862 { .hw_value = 9, .center_freq = 5045},
1863 { .hw_value = 11, .center_freq = 5055},
1864 { .hw_value = 12, .center_freq = 5060},
1865 { .hw_value = 16, .center_freq = 5080},
1866 { .hw_value = 34, .center_freq = 5170},
1867 { .hw_value = 36, .center_freq = 5180},
1868 { .hw_value = 38, .center_freq = 5190},
1869 { .hw_value = 40, .center_freq = 5200},
1870 { .hw_value = 42, .center_freq = 5210},
1871 { .hw_value = 44, .center_freq = 5220},
1872 { .hw_value = 46, .center_freq = 5230},
1873 { .hw_value = 48, .center_freq = 5240},
1874 { .hw_value = 52, .center_freq = 5260},
1875 { .hw_value = 56, .center_freq = 5280},
1876 { .hw_value = 60, .center_freq = 5300},
1877 { .hw_value = 64, .center_freq = 5320},
1878 { .hw_value = 100, .center_freq = 5500},
1879 { .hw_value = 104, .center_freq = 5520},
1880 { .hw_value = 108, .center_freq = 5540},
1881 { .hw_value = 112, .center_freq = 5560},
1882 { .hw_value = 116, .center_freq = 5580},
1883 { .hw_value = 120, .center_freq = 5600},
1884 { .hw_value = 124, .center_freq = 5620},
1885 { .hw_value = 128, .center_freq = 5640},
1886 { .hw_value = 132, .center_freq = 5660},
1887 { .hw_value = 136, .center_freq = 5680},
1888 { .hw_value = 140, .center_freq = 5700},
1889 { .hw_value = 149, .center_freq = 5745},
1890 { .hw_value = 153, .center_freq = 5765},
1891 { .hw_value = 157, .center_freq = 5785},
1892 { .hw_value = 161, .center_freq = 5805},
1893 { .hw_value = 165, .center_freq = 5825},
1894};
1895
1896
1897static struct ieee80211_supported_band wl1271_band_5ghz = {
1898 .channels = wl1271_channels_5ghz,
1899 .n_channels = ARRAY_SIZE(wl1271_channels_5ghz),
1900 .bitrates = wl1271_rates_5ghz,
1901 .n_bitrates = ARRAY_SIZE(wl1271_rates_5ghz),
1902};
1903
f5fc0f86
LC		 1904static const struct ieee80211_ops wl1271_ops = {
1905 .start = wl1271_op_start,
1906 .stop = wl1271_op_stop,
1907 .add_interface = wl1271_op_add_interface,
1908 .remove_interface = wl1271_op_remove_interface,
1909 .config = wl1271_op_config,
c87dec9f 1910 .prepare_multicast = wl1271_op_prepare_multicast,
f5fc0f86
LC		 1911 .configure_filter = wl1271_op_configure_filter,
1912 .tx = wl1271_op_tx,
1913 .set_key = wl1271_op_set_key,
1914 .hw_scan = wl1271_op_hw_scan,
1915 .bss_info_changed = wl1271_op_bss_info_changed,
1916 .set_rts_threshold = wl1271_op_set_rts_threshold,
c6999d83 1917 .conf_tx = wl1271_op_conf_tx,
c8c90873 1918 CFG80211_TESTMODE_CMD(wl1271_tm_cmd)
f5fc0f86
LC		 1919};
1920
7fc3a864
JO		 1921static ssize_t wl1271_sysfs_show_bt_coex_state(struct device *dev,
1922 struct device_attribute *attr,
1923 char *buf)
1924{
1925 struct wl1271 *wl = dev_get_drvdata(dev);
1926 ssize_t len;
1927
1928 /* FIXME: what's the maximum length of buf? page size?*/
1929 len = 500;
1930
1931 mutex_lock(&wl->mutex);
1932 len = snprintf(buf, len, "%d\n\n0 - off\n1 - on\n",
1933 wl->sg_enabled);
1934 mutex_unlock(&wl->mutex);
1935
1936 return len;
1937
1938}
1939
1940static ssize_t wl1271_sysfs_store_bt_coex_state(struct device *dev,
1941 struct device_attribute *attr,
1942 const char *buf, size_t count)
1943{
1944 struct wl1271 *wl = dev_get_drvdata(dev);
1945 unsigned long res;
1946 int ret;
1947
1948 ret = strict_strtoul(buf, 10, &res);
1949
1950 if (ret < 0) {
1951 wl1271_warning("incorrect value written to bt_coex_mode");
1952 return count;
1953 }
1954
1955 mutex_lock(&wl->mutex);
1956
1957 res = !!res;
1958
1959 if (res == wl->sg_enabled)
1960 goto out;
1961
1962 wl->sg_enabled = res;
1963
1964 if (wl->state == WL1271_STATE_OFF)
1965 goto out;
1966
1967 ret = wl1271_ps_elp_wakeup(wl, false);
1968 if (ret < 0)
1969 goto out;
1970
1971 wl1271_acx_sg_enable(wl, wl->sg_enabled);
1972 wl1271_ps_elp_sleep(wl);
1973
1974 out:
1975 mutex_unlock(&wl->mutex);
1976 return count;
1977}
1978
1979static DEVICE_ATTR(bt_coex_state, S_IRUGO | S_IWUSR,
1980 wl1271_sysfs_show_bt_coex_state,
1981 wl1271_sysfs_store_bt_coex_state);
1982
2d5e82b8 1983int wl1271_register_hw(struct wl1271 *wl)
f5fc0f86
LC		 1984{
1985 int ret;
1986
1987 if (wl->mac80211_registered)
1988 return 0;
1989
1990 SET_IEEE80211_PERM_ADDR(wl->hw, wl->mac_addr);
1991
1992 ret = ieee80211_register_hw(wl->hw);
1993 if (ret < 0) {
1994 wl1271_error("unable to register mac80211 hw: %d", ret);
1995 return ret;
1996 }
1997
1998 wl->mac80211_registered = true;
1999
2000 wl1271_notice("loaded");
2001
2002 return 0;
2003}
50b3eb4b 2004EXPORT_SYMBOL_GPL(wl1271_register_hw);
f5fc0f86 2005
3b56dd6a
TP		 2006void wl1271_unregister_hw(struct wl1271 *wl)
2007{
2008 ieee80211_unregister_hw(wl->hw);
2009 wl->mac80211_registered = false;
2010
2011}
2012EXPORT_SYMBOL_GPL(wl1271_unregister_hw);
2013
2d5e82b8 2014int wl1271_init_ieee80211(struct wl1271 *wl)
f5fc0f86 2015{
1e2b7976
JO		 2016 /* The tx descriptor buffer and the TKIP space. */
2017 wl->hw->extra_tx_headroom = WL1271_TKIP_IV_SPACE +
2018 sizeof(struct wl1271_tx_hw_descr);
f5fc0f86
LC		 2019
2020 /* unit us */
2021 /* FIXME: find a proper value */
2022 wl->hw->channel_change_time = 10000;
2023
2024 wl->hw->flags = IEEE80211_HW_SIGNAL_DBM |
1922167b 2025 IEEE80211_HW_NOISE_DBM |
03442a33 2026 IEEE80211_HW_BEACON_FILTER |
0a34332f 2027 IEEE80211_HW_SUPPORTS_PS |
4695dc91 2028 IEEE80211_HW_SUPPORTS_UAPSD |
0a34332f 2029 IEEE80211_HW_HAS_RATE_CONTROL;
f5fc0f86 2030
e0d8bbf0
JO		 2031 wl->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
2032 BIT(NL80211_IFTYPE_ADHOC);
f5fc0f86
LC		 2033 wl->hw->wiphy->max_scan_ssids = 1;
2034 wl->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wl1271_band_2ghz;
2035
1ebec3d7
TP		 2036 if (wl1271_11a_enabled())
2037 wl->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &wl1271_band_5ghz;
2038
12bd8949
KV		 2039 wl->hw->queues = 4;
2040
8197b711 2041 SET_IEEE80211_DEV(wl->hw, wl1271_wl_to_dev(wl));
f5fc0f86
LC		 2042
2043 return 0;
2044}
50b3eb4b 2045EXPORT_SYMBOL_GPL(wl1271_init_ieee80211);
f5fc0f86 2046
f5fc0f86 2047#define WL1271_DEFAULT_CHANNEL 0
c332a4b8 2048
2d5e82b8 2049struct ieee80211_hw *wl1271_alloc_hw(void)
f5fc0f86 2050{
f5fc0f86 2051 struct ieee80211_hw *hw;
3b56dd6a 2052 struct platform_device *plat_dev = NULL;
f5fc0f86 2053 struct wl1271 *wl;
a1dd8187 2054 int i, ret;
1b72aecd 2055 static const u8 nokia_oui[3] = {0x00, 0x1f, 0xdf};
f5fc0f86
LC		 2056
2057 hw = ieee80211_alloc_hw(sizeof(*wl), &wl1271_ops);
2058 if (!hw) {
2059 wl1271_error("could not alloc ieee80211_hw");
a1dd8187 2060 ret = -ENOMEM;
3b56dd6a
TP		 2061 goto err_hw_alloc;
2062 }
2063
2064 plat_dev = kmalloc(sizeof(wl1271_device), GFP_KERNEL);
2065 if (!plat_dev) {
2066 wl1271_error("could not allocate platform_device");
2067 ret = -ENOMEM;
2068 goto err_plat_alloc;
f5fc0f86
LC		 2069 }
2070
3b56dd6a
TP		 2071 memcpy(plat_dev, &wl1271_device, sizeof(wl1271_device));
2072
f5fc0f86
LC		 2073 wl = hw->priv;
2074 memset(wl, 0, sizeof(*wl));
2075
01c09162
JO		 2076 INIT_LIST_HEAD(&wl->list);
2077
f5fc0f86 2078 wl->hw = hw;
3b56dd6a 2079 wl->plat_dev = plat_dev;
f5fc0f86
LC		 2080
2081 skb_queue_head_init(&wl->tx_queue);
2082
37b70a81 2083 INIT_DELAYED_WORK(&wl->elp_work, wl1271_elp_work);
f5fc0f86 2084 wl->channel = WL1271_DEFAULT_CHANNEL;
f5fc0f86 2085 wl->default_key = 0;
f5fc0f86
LC		 2086 wl->rx_counter = 0;
2087 wl->rx_config = WL1271_DEFAULT_RX_CONFIG;
2088 wl->rx_filter = WL1271_DEFAULT_RX_FILTER;
19ad0715 2089 wl->psm_entry_retry = 0;
f5fc0f86 2090 wl->power_level = WL1271_DEFAULT_POWER_LEVEL;
a6fe2313 2091 wl->basic_rate_set = CONF_TX_RATE_MASK_BASIC;
830fb67b
JO		 2092 wl->rate_set = CONF_TX_RATE_MASK_BASIC;
2093 wl->sta_rate_set = 0;
8a5a37a6 2094 wl->band = IEEE80211_BAND_2GHZ;
b771eee5 2095 wl->vif = NULL;
830fb67b 2096 wl->flags = 0;
7fc3a864 2097 wl->sg_enabled = true;
f5fc0f86 2098
be7078c2 2099 for (i = 0; i < ACX_TX_DESCRIPTORS; i++)
f5fc0f86
LC		 2100 wl->tx_frames[i] = NULL;
2101
2102 spin_lock_init(&wl->wl_lock);
2103
f5fc0f86
LC		 2104 wl->state = WL1271_STATE_OFF;
2105 mutex_init(&wl->mutex);
2106
1b72aecd
JO		 2107 /*
2108 * FIXME: we should use a zero MAC address here, but for now we
2109 * generate a random Nokia address.
2110 */
2111 memcpy(wl->mac_addr, nokia_oui, 3);
2112 get_random_bytes(wl->mac_addr + 3, 3);
2113
c332a4b8
TP		 2114 /* Apply default driver configuration. */
2115 wl1271_conf_init(wl);
2116
2d5e82b8
TP		 2117 wl1271_debugfs_init(wl);
2118
a1dd8187 2119 /* Register platform device */
3b56dd6a 2120 ret = platform_device_register(wl->plat_dev);
a1dd8187
JO		 2121 if (ret) {
2122 wl1271_error("couldn't register platform device");
2123 goto err_hw;
2124 }
3b56dd6a 2125 dev_set_drvdata(&wl->plat_dev->dev, wl);
a1dd8187 2126
7fc3a864 2127 /* Create sysfs file to control bt coex state */
3b56dd6a 2128 ret = device_create_file(&wl->plat_dev->dev, &dev_attr_bt_coex_state);
7fc3a864
JO		 2129 if (ret < 0) {
2130 wl1271_error("failed to create sysfs file bt_coex_state");
2131 goto err_platform;
2132 }
a1dd8187 2133
c332a4b8 2134 return hw;
a1dd8187 2135
7fc3a864 2136err_platform:
3b56dd6a 2137 platform_device_unregister(wl->plat_dev);
7fc3a864 2138
a1dd8187 2139err_hw:
3b56dd6a
TP		 2140 wl1271_debugfs_exit(wl);
2141 kfree(plat_dev);
2142
2143err_plat_alloc:
2144 ieee80211_free_hw(hw);
2145
2146err_hw_alloc:
a1dd8187 2147
a1dd8187 2148 return ERR_PTR(ret);
c332a4b8 2149}
50b3eb4b 2150EXPORT_SYMBOL_GPL(wl1271_alloc_hw);
c332a4b8
TP		 2151
2152int wl1271_free_hw(struct wl1271 *wl)
2153{
3b56dd6a
TP		 2154 platform_device_unregister(wl->plat_dev);
2155 kfree(wl->plat_dev);
c332a4b8
TP		 2156
2157 wl1271_debugfs_exit(wl);
2158
2159 kfree(wl->target_mem_map);
2160 vfree(wl->fw);
2161 wl->fw = NULL;
2162 kfree(wl->nvs);
2163 wl->nvs = NULL;
2164
2165 kfree(wl->fw_status);
2166 kfree(wl->tx_res_if);
2167
2168 ieee80211_free_hw(wl->hw);
2169
2170 return 0;
2171}
50b3eb4b
TP		 2172EXPORT_SYMBOL_GPL(wl1271_free_hw);
2173
2174MODULE_LICENSE("GPL");
2175MODULE_AUTHOR("Luciano Coelho <luciano.coelho@nokia.com>");
2176MODULE_AUTHOR("Juuso Oikarinen <juuso.oikarinen@nokia.com>");
kernel source for telekom puls (alcatel/mediatek)