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Merge 4.14.23 into android-4.14
[GitHub/LineageOS/android_kernel_motorola_exynos9610.git] / drivers / net / wireless / ath / wcn36xx / main.c
1 /*
2 * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
18
19 #include <linux/module.h>
20 #include <linux/firmware.h>
21 #include <linux/platform_device.h>
22 #include <linux/of_address.h>
23 #include <linux/of_device.h>
24 #include <linux/of_irq.h>
25 #include <linux/rpmsg.h>
26 #include <linux/soc/qcom/smem_state.h>
27 #include <linux/soc/qcom/wcnss_ctrl.h>
28 #include "wcn36xx.h"
29
30 unsigned int wcn36xx_dbg_mask;
31 module_param_named(debug_mask, wcn36xx_dbg_mask, uint, 0644);
32 MODULE_PARM_DESC(debug_mask, "Debugging mask");
33
34 #define CHAN2G(_freq, _idx) { \
35 .band = NL80211_BAND_2GHZ, \
36 .center_freq = (_freq), \
37 .hw_value = (_idx), \
38 .max_power = 25, \
39 }
40
41 #define CHAN5G(_freq, _idx) { \
42 .band = NL80211_BAND_5GHZ, \
43 .center_freq = (_freq), \
44 .hw_value = (_idx), \
45 .max_power = 25, \
46 }
47
48 /* The wcn firmware expects channel values to matching
49 * their mnemonic values. So use these for .hw_value. */
50 static struct ieee80211_channel wcn_2ghz_channels[] = {
51 CHAN2G(2412, 1), /* Channel 1 */
52 CHAN2G(2417, 2), /* Channel 2 */
53 CHAN2G(2422, 3), /* Channel 3 */
54 CHAN2G(2427, 4), /* Channel 4 */
55 CHAN2G(2432, 5), /* Channel 5 */
56 CHAN2G(2437, 6), /* Channel 6 */
57 CHAN2G(2442, 7), /* Channel 7 */
58 CHAN2G(2447, 8), /* Channel 8 */
59 CHAN2G(2452, 9), /* Channel 9 */
60 CHAN2G(2457, 10), /* Channel 10 */
61 CHAN2G(2462, 11), /* Channel 11 */
62 CHAN2G(2467, 12), /* Channel 12 */
63 CHAN2G(2472, 13), /* Channel 13 */
64 CHAN2G(2484, 14) /* Channel 14 */
65
66 };
67
68 static struct ieee80211_channel wcn_5ghz_channels[] = {
69 CHAN5G(5180, 36),
70 CHAN5G(5200, 40),
71 CHAN5G(5220, 44),
72 CHAN5G(5240, 48),
73 CHAN5G(5260, 52),
74 CHAN5G(5280, 56),
75 CHAN5G(5300, 60),
76 CHAN5G(5320, 64),
77 CHAN5G(5500, 100),
78 CHAN5G(5520, 104),
79 CHAN5G(5540, 108),
80 CHAN5G(5560, 112),
81 CHAN5G(5580, 116),
82 CHAN5G(5600, 120),
83 CHAN5G(5620, 124),
84 CHAN5G(5640, 128),
85 CHAN5G(5660, 132),
86 CHAN5G(5700, 140),
87 CHAN5G(5745, 149),
88 CHAN5G(5765, 153),
89 CHAN5G(5785, 157),
90 CHAN5G(5805, 161),
91 CHAN5G(5825, 165)
92 };
93
94 #define RATE(_bitrate, _hw_rate, _flags) { \
95 .bitrate = (_bitrate), \
96 .flags = (_flags), \
97 .hw_value = (_hw_rate), \
98 .hw_value_short = (_hw_rate) \
99 }
100
101 static struct ieee80211_rate wcn_2ghz_rates[] = {
102 RATE(10, HW_RATE_INDEX_1MBPS, 0),
103 RATE(20, HW_RATE_INDEX_2MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
104 RATE(55, HW_RATE_INDEX_5_5MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
105 RATE(110, HW_RATE_INDEX_11MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
106 RATE(60, HW_RATE_INDEX_6MBPS, 0),
107 RATE(90, HW_RATE_INDEX_9MBPS, 0),
108 RATE(120, HW_RATE_INDEX_12MBPS, 0),
109 RATE(180, HW_RATE_INDEX_18MBPS, 0),
110 RATE(240, HW_RATE_INDEX_24MBPS, 0),
111 RATE(360, HW_RATE_INDEX_36MBPS, 0),
112 RATE(480, HW_RATE_INDEX_48MBPS, 0),
113 RATE(540, HW_RATE_INDEX_54MBPS, 0)
114 };
115
116 static struct ieee80211_rate wcn_5ghz_rates[] = {
117 RATE(60, HW_RATE_INDEX_6MBPS, 0),
118 RATE(90, HW_RATE_INDEX_9MBPS, 0),
119 RATE(120, HW_RATE_INDEX_12MBPS, 0),
120 RATE(180, HW_RATE_INDEX_18MBPS, 0),
121 RATE(240, HW_RATE_INDEX_24MBPS, 0),
122 RATE(360, HW_RATE_INDEX_36MBPS, 0),
123 RATE(480, HW_RATE_INDEX_48MBPS, 0),
124 RATE(540, HW_RATE_INDEX_54MBPS, 0)
125 };
126
127 static struct ieee80211_supported_band wcn_band_2ghz = {
128 .channels = wcn_2ghz_channels,
129 .n_channels = ARRAY_SIZE(wcn_2ghz_channels),
130 .bitrates = wcn_2ghz_rates,
131 .n_bitrates = ARRAY_SIZE(wcn_2ghz_rates),
132 .ht_cap = {
133 .cap = IEEE80211_HT_CAP_GRN_FLD |
134 IEEE80211_HT_CAP_SGI_20 |
135 IEEE80211_HT_CAP_DSSSCCK40 |
136 IEEE80211_HT_CAP_LSIG_TXOP_PROT,
137 .ht_supported = true,
138 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
139 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
140 .mcs = {
141 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
142 .rx_highest = cpu_to_le16(72),
143 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
144 }
145 }
146 };
147
148 static struct ieee80211_supported_band wcn_band_5ghz = {
149 .channels = wcn_5ghz_channels,
150 .n_channels = ARRAY_SIZE(wcn_5ghz_channels),
151 .bitrates = wcn_5ghz_rates,
152 .n_bitrates = ARRAY_SIZE(wcn_5ghz_rates),
153 .ht_cap = {
154 .cap = IEEE80211_HT_CAP_GRN_FLD |
155 IEEE80211_HT_CAP_SGI_20 |
156 IEEE80211_HT_CAP_DSSSCCK40 |
157 IEEE80211_HT_CAP_LSIG_TXOP_PROT |
158 IEEE80211_HT_CAP_SGI_40 |
159 IEEE80211_HT_CAP_SUP_WIDTH_20_40,
160 .ht_supported = true,
161 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
162 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
163 .mcs = {
164 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
165 .rx_highest = cpu_to_le16(72),
166 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
167 }
168 }
169 };
170
171 #ifdef CONFIG_PM
172
173 static const struct wiphy_wowlan_support wowlan_support = {
174 .flags = WIPHY_WOWLAN_ANY
175 };
176
177 #endif
178
179 static inline u8 get_sta_index(struct ieee80211_vif *vif,
180 struct wcn36xx_sta *sta_priv)
181 {
182 return NL80211_IFTYPE_STATION == vif->type ?
183 sta_priv->bss_sta_index :
184 sta_priv->sta_index;
185 }
186
187 static const char * const wcn36xx_caps_names[] = {
188 "MCC", /* 0 */
189 "P2P", /* 1 */
190 "DOT11AC", /* 2 */
191 "SLM_SESSIONIZATION", /* 3 */
192 "DOT11AC_OPMODE", /* 4 */
193 "SAP32STA", /* 5 */
194 "TDLS", /* 6 */
195 "P2P_GO_NOA_DECOUPLE_INIT_SCAN",/* 7 */
196 "WLANACTIVE_OFFLOAD", /* 8 */
197 "BEACON_OFFLOAD", /* 9 */
198 "SCAN_OFFLOAD", /* 10 */
199 "ROAM_OFFLOAD", /* 11 */
200 "BCN_MISS_OFFLOAD", /* 12 */
201 "STA_POWERSAVE", /* 13 */
202 "STA_ADVANCED_PWRSAVE", /* 14 */
203 "AP_UAPSD", /* 15 */
204 "AP_DFS", /* 16 */
205 "BLOCKACK", /* 17 */
206 "PHY_ERR", /* 18 */
207 "BCN_FILTER", /* 19 */
208 "RTT", /* 20 */
209 "RATECTRL", /* 21 */
210 "WOW", /* 22 */
211 "WLAN_ROAM_SCAN_OFFLOAD", /* 23 */
212 "SPECULATIVE_PS_POLL", /* 24 */
213 "SCAN_SCH", /* 25 */
214 "IBSS_HEARTBEAT_OFFLOAD", /* 26 */
215 "WLAN_SCAN_OFFLOAD", /* 27 */
216 "WLAN_PERIODIC_TX_PTRN", /* 28 */
217 "ADVANCE_TDLS", /* 29 */
218 "BATCH_SCAN", /* 30 */
219 "FW_IN_TX_PATH", /* 31 */
220 "EXTENDED_NSOFFLOAD_SLOT", /* 32 */
221 "CH_SWITCH_V1", /* 33 */
222 "HT40_OBSS_SCAN", /* 34 */
223 "UPDATE_CHANNEL_LIST", /* 35 */
224 "WLAN_MCADDR_FLT", /* 36 */
225 "WLAN_CH144", /* 37 */
226 "NAN", /* 38 */
227 "TDLS_SCAN_COEXISTENCE", /* 39 */
228 "LINK_LAYER_STATS_MEAS", /* 40 */
229 "MU_MIMO", /* 41 */
230 "EXTENDED_SCAN", /* 42 */
231 "DYNAMIC_WMM_PS", /* 43 */
232 "MAC_SPOOFED_SCAN", /* 44 */
233 "BMU_ERROR_GENERIC_RECOVERY", /* 45 */
234 "DISA", /* 46 */
235 "FW_STATS", /* 47 */
236 "WPS_PRBRSP_TMPL", /* 48 */
237 "BCN_IE_FLT_DELTA", /* 49 */
238 "TDLS_OFF_CHANNEL", /* 51 */
239 "RTT3", /* 52 */
240 "MGMT_FRAME_LOGGING", /* 53 */
241 "ENHANCED_TXBD_COMPLETION", /* 54 */
242 "LOGGING_ENHANCEMENT", /* 55 */
243 "EXT_SCAN_ENHANCED", /* 56 */
244 "MEMORY_DUMP_SUPPORTED", /* 57 */
245 "PER_PKT_STATS_SUPPORTED", /* 58 */
246 "EXT_LL_STAT", /* 60 */
247 "WIFI_CONFIG", /* 61 */
248 "ANTENNA_DIVERSITY_SELECTION", /* 62 */
249 };
250
251 static const char *wcn36xx_get_cap_name(enum place_holder_in_cap_bitmap x)
252 {
253 if (x >= ARRAY_SIZE(wcn36xx_caps_names))
254 return "UNKNOWN";
255 return wcn36xx_caps_names[x];
256 }
257
258 static void wcn36xx_feat_caps_info(struct wcn36xx *wcn)
259 {
260 int i;
261
262 for (i = 0; i < MAX_FEATURE_SUPPORTED; i++) {
263 if (get_feat_caps(wcn->fw_feat_caps, i))
264 wcn36xx_info("FW Cap %s\n", wcn36xx_get_cap_name(i));
265 }
266 }
267
268 static int wcn36xx_start(struct ieee80211_hw *hw)
269 {
270 struct wcn36xx *wcn = hw->priv;
271 int ret;
272
273 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac start\n");
274
275 /* SMD initialization */
276 ret = wcn36xx_smd_open(wcn);
277 if (ret) {
278 wcn36xx_err("Failed to open smd channel: %d\n", ret);
279 goto out_err;
280 }
281
282 /* Allocate memory pools for Mgmt BD headers and Data BD headers */
283 ret = wcn36xx_dxe_allocate_mem_pools(wcn);
284 if (ret) {
285 wcn36xx_err("Failed to alloc DXE mempool: %d\n", ret);
286 goto out_smd_close;
287 }
288
289 ret = wcn36xx_dxe_alloc_ctl_blks(wcn);
290 if (ret) {
291 wcn36xx_err("Failed to alloc DXE ctl blocks: %d\n", ret);
292 goto out_free_dxe_pool;
293 }
294
295 wcn->hal_buf = kmalloc(WCN36XX_HAL_BUF_SIZE, GFP_KERNEL);
296 if (!wcn->hal_buf) {
297 wcn36xx_err("Failed to allocate smd buf\n");
298 ret = -ENOMEM;
299 goto out_free_dxe_ctl;
300 }
301
302 ret = wcn36xx_smd_load_nv(wcn);
303 if (ret) {
304 wcn36xx_err("Failed to push NV to chip\n");
305 goto out_free_smd_buf;
306 }
307
308 ret = wcn36xx_smd_start(wcn);
309 if (ret) {
310 wcn36xx_err("Failed to start chip\n");
311 goto out_free_smd_buf;
312 }
313
314 if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
315 ret = wcn36xx_smd_feature_caps_exchange(wcn);
316 if (ret)
317 wcn36xx_warn("Exchange feature caps failed\n");
318 else
319 wcn36xx_feat_caps_info(wcn);
320 }
321
322 /* DMA channel initialization */
323 ret = wcn36xx_dxe_init(wcn);
324 if (ret) {
325 wcn36xx_err("DXE init failed\n");
326 goto out_smd_stop;
327 }
328
329 wcn36xx_debugfs_init(wcn);
330
331 INIT_LIST_HEAD(&wcn->vif_list);
332 spin_lock_init(&wcn->dxe_lock);
333
334 return 0;
335
336 out_smd_stop:
337 wcn36xx_smd_stop(wcn);
338 out_free_smd_buf:
339 kfree(wcn->hal_buf);
340 out_free_dxe_ctl:
341 wcn36xx_dxe_free_ctl_blks(wcn);
342 out_free_dxe_pool:
343 wcn36xx_dxe_free_mem_pools(wcn);
344 out_smd_close:
345 wcn36xx_smd_close(wcn);
346 out_err:
347 return ret;
348 }
349
350 static void wcn36xx_stop(struct ieee80211_hw *hw)
351 {
352 struct wcn36xx *wcn = hw->priv;
353
354 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac stop\n");
355
356 wcn36xx_debugfs_exit(wcn);
357 wcn36xx_smd_stop(wcn);
358 wcn36xx_dxe_deinit(wcn);
359 wcn36xx_smd_close(wcn);
360
361 wcn36xx_dxe_free_mem_pools(wcn);
362 wcn36xx_dxe_free_ctl_blks(wcn);
363
364 kfree(wcn->hal_buf);
365 }
366
367 static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
368 {
369 struct wcn36xx *wcn = hw->priv;
370 struct ieee80211_vif *vif = NULL;
371 struct wcn36xx_vif *tmp;
372
373 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed);
374
375 mutex_lock(&wcn->conf_mutex);
376
377 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
378 int ch = WCN36XX_HW_CHANNEL(wcn);
379 wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d\n",
380 ch);
381 list_for_each_entry(tmp, &wcn->vif_list, list) {
382 vif = wcn36xx_priv_to_vif(tmp);
383 wcn36xx_smd_switch_channel(wcn, vif, ch);
384 }
385 }
386
387 mutex_unlock(&wcn->conf_mutex);
388
389 return 0;
390 }
391
392 static void wcn36xx_configure_filter(struct ieee80211_hw *hw,
393 unsigned int changed,
394 unsigned int *total, u64 multicast)
395 {
396 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp;
397 struct wcn36xx *wcn = hw->priv;
398 struct wcn36xx_vif *tmp;
399 struct ieee80211_vif *vif = NULL;
400
401 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac configure filter\n");
402
403 mutex_lock(&wcn->conf_mutex);
404
405 *total &= FIF_ALLMULTI;
406
407 fp = (void *)(unsigned long)multicast;
408 list_for_each_entry(tmp, &wcn->vif_list, list) {
409 vif = wcn36xx_priv_to_vif(tmp);
410
411 /* FW handles MC filtering only when connected as STA */
412 if (*total & FIF_ALLMULTI)
413 wcn36xx_smd_set_mc_list(wcn, vif, NULL);
414 else if (NL80211_IFTYPE_STATION == vif->type && tmp->sta_assoc)
415 wcn36xx_smd_set_mc_list(wcn, vif, fp);
416 }
417
418 mutex_unlock(&wcn->conf_mutex);
419 kfree(fp);
420 }
421
422 static u64 wcn36xx_prepare_multicast(struct ieee80211_hw *hw,
423 struct netdev_hw_addr_list *mc_list)
424 {
425 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp;
426 struct netdev_hw_addr *ha;
427
428 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac prepare multicast list\n");
429 fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
430 if (!fp) {
431 wcn36xx_err("Out of memory setting filters.\n");
432 return 0;
433 }
434
435 fp->mc_addr_count = 0;
436 /* update multicast filtering parameters */
437 if (netdev_hw_addr_list_count(mc_list) <=
438 WCN36XX_HAL_MAX_NUM_MULTICAST_ADDRESS) {
439 netdev_hw_addr_list_for_each(ha, mc_list) {
440 memcpy(fp->mc_addr[fp->mc_addr_count],
441 ha->addr, ETH_ALEN);
442 fp->mc_addr_count++;
443 }
444 }
445
446 return (u64)(unsigned long)fp;
447 }
448
449 static void wcn36xx_tx(struct ieee80211_hw *hw,
450 struct ieee80211_tx_control *control,
451 struct sk_buff *skb)
452 {
453 struct wcn36xx *wcn = hw->priv;
454 struct wcn36xx_sta *sta_priv = NULL;
455
456 if (control->sta)
457 sta_priv = wcn36xx_sta_to_priv(control->sta);
458
459 if (wcn36xx_start_tx(wcn, sta_priv, skb))
460 ieee80211_free_txskb(wcn->hw, skb);
461 }
462
463 static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
464 struct ieee80211_vif *vif,
465 struct ieee80211_sta *sta,
466 struct ieee80211_key_conf *key_conf)
467 {
468 struct wcn36xx *wcn = hw->priv;
469 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
470 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
471 int ret = 0;
472 u8 key[WLAN_MAX_KEY_LEN];
473
474 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 set key\n");
475 wcn36xx_dbg(WCN36XX_DBG_MAC, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x\n",
476 cmd, key_conf->cipher, key_conf->keyidx,
477 key_conf->keylen, key_conf->flags);
478 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "KEY: ",
479 key_conf->key,
480 key_conf->keylen);
481
482 mutex_lock(&wcn->conf_mutex);
483
484 switch (key_conf->cipher) {
485 case WLAN_CIPHER_SUITE_WEP40:
486 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
487 break;
488 case WLAN_CIPHER_SUITE_WEP104:
489 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
490 break;
491 case WLAN_CIPHER_SUITE_CCMP:
492 vif_priv->encrypt_type = WCN36XX_HAL_ED_CCMP;
493 break;
494 case WLAN_CIPHER_SUITE_TKIP:
495 vif_priv->encrypt_type = WCN36XX_HAL_ED_TKIP;
496 break;
497 default:
498 wcn36xx_err("Unsupported key type 0x%x\n",
499 key_conf->cipher);
500 ret = -EOPNOTSUPP;
501 goto out;
502 }
503
504 switch (cmd) {
505 case SET_KEY:
506 if (WCN36XX_HAL_ED_TKIP == vif_priv->encrypt_type) {
507 /*
508 * Supplicant is sending key in the wrong order:
509 * Temporal Key (16 b) - TX MIC (8 b) - RX MIC (8 b)
510 * but HW expects it to be in the order as described in
511 * IEEE 802.11 spec (see chapter 11.7) like this:
512 * Temporal Key (16 b) - RX MIC (8 b) - TX MIC (8 b)
513 */
514 memcpy(key, key_conf->key, 16);
515 memcpy(key + 16, key_conf->key + 24, 8);
516 memcpy(key + 24, key_conf->key + 16, 8);
517 } else {
518 memcpy(key, key_conf->key, key_conf->keylen);
519 }
520
521 if (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags) {
522 sta_priv->is_data_encrypted = true;
523 /* Reconfigure bss with encrypt_type */
524 if (NL80211_IFTYPE_STATION == vif->type)
525 wcn36xx_smd_config_bss(wcn,
526 vif,
527 sta,
528 sta->addr,
529 true);
530
531 wcn36xx_smd_set_stakey(wcn,
532 vif_priv->encrypt_type,
533 key_conf->keyidx,
534 key_conf->keylen,
535 key,
536 get_sta_index(vif, sta_priv));
537 } else {
538 wcn36xx_smd_set_bsskey(wcn,
539 vif_priv->encrypt_type,
540 key_conf->keyidx,
541 key_conf->keylen,
542 key);
543 if ((WLAN_CIPHER_SUITE_WEP40 == key_conf->cipher) ||
544 (WLAN_CIPHER_SUITE_WEP104 == key_conf->cipher)) {
545 sta_priv->is_data_encrypted = true;
546 wcn36xx_smd_set_stakey(wcn,
547 vif_priv->encrypt_type,
548 key_conf->keyidx,
549 key_conf->keylen,
550 key,
551 get_sta_index(vif, sta_priv));
552 }
553 }
554 break;
555 case DISABLE_KEY:
556 if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) {
557 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE;
558 wcn36xx_smd_remove_bsskey(wcn,
559 vif_priv->encrypt_type,
560 key_conf->keyidx);
561 } else {
562 sta_priv->is_data_encrypted = false;
563 /* do not remove key if disassociated */
564 if (sta_priv->aid)
565 wcn36xx_smd_remove_stakey(wcn,
566 vif_priv->encrypt_type,
567 key_conf->keyidx,
568 get_sta_index(vif, sta_priv));
569 }
570 break;
571 default:
572 wcn36xx_err("Unsupported key cmd 0x%x\n", cmd);
573 ret = -EOPNOTSUPP;
574 goto out;
575 }
576
577 out:
578 mutex_unlock(&wcn->conf_mutex);
579
580 return ret;
581 }
582
583 static void wcn36xx_hw_scan_worker(struct work_struct *work)
584 {
585 struct wcn36xx *wcn = container_of(work, struct wcn36xx, scan_work);
586 struct cfg80211_scan_request *req = wcn->scan_req;
587 u8 channels[WCN36XX_HAL_PNO_MAX_NETW_CHANNELS_EX];
588 struct cfg80211_scan_info scan_info = {};
589 bool aborted = false;
590 int i;
591
592 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 scan %d channels worker\n", req->n_channels);
593
594 for (i = 0; i < req->n_channels; i++)
595 channels[i] = req->channels[i]->hw_value;
596
597 wcn36xx_smd_update_scan_params(wcn, channels, req->n_channels);
598
599 wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN);
600 for (i = 0; i < req->n_channels; i++) {
601 mutex_lock(&wcn->scan_lock);
602 aborted = wcn->scan_aborted;
603 mutex_unlock(&wcn->scan_lock);
604
605 if (aborted)
606 break;
607
608 wcn->scan_freq = req->channels[i]->center_freq;
609 wcn->scan_band = req->channels[i]->band;
610
611 wcn36xx_smd_start_scan(wcn, req->channels[i]->hw_value);
612 msleep(30);
613 wcn36xx_smd_end_scan(wcn, req->channels[i]->hw_value);
614
615 wcn->scan_freq = 0;
616 }
617 wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN);
618
619 scan_info.aborted = aborted;
620 ieee80211_scan_completed(wcn->hw, &scan_info);
621
622 mutex_lock(&wcn->scan_lock);
623 wcn->scan_req = NULL;
624 mutex_unlock(&wcn->scan_lock);
625 }
626
627 static int wcn36xx_hw_scan(struct ieee80211_hw *hw,
628 struct ieee80211_vif *vif,
629 struct ieee80211_scan_request *hw_req)
630 {
631 struct wcn36xx *wcn = hw->priv;
632
633 mutex_lock(&wcn->scan_lock);
634 if (wcn->scan_req) {
635 mutex_unlock(&wcn->scan_lock);
636 return -EBUSY;
637 }
638
639 wcn->scan_aborted = false;
640 wcn->scan_req = &hw_req->req;
641 mutex_unlock(&wcn->scan_lock);
642
643 schedule_work(&wcn->scan_work);
644
645 return 0;
646 }
647
648 static void wcn36xx_cancel_hw_scan(struct ieee80211_hw *hw,
649 struct ieee80211_vif *vif)
650 {
651 struct wcn36xx *wcn = hw->priv;
652
653 mutex_lock(&wcn->scan_lock);
654 wcn->scan_aborted = true;
655 mutex_unlock(&wcn->scan_lock);
656
657 cancel_work_sync(&wcn->scan_work);
658 }
659
660 static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta,
661 enum nl80211_band band)
662 {
663 int i, size;
664 u16 *rates_table;
665 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
666 u32 rates = sta->supp_rates[band];
667
668 memset(&sta_priv->supported_rates, 0,
669 sizeof(sta_priv->supported_rates));
670 sta_priv->supported_rates.op_rate_mode = STA_11n;
671
672 size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates);
673 rates_table = sta_priv->supported_rates.dsss_rates;
674 if (band == NL80211_BAND_2GHZ) {
675 for (i = 0; i < size; i++) {
676 if (rates & 0x01) {
677 rates_table[i] = wcn_2ghz_rates[i].hw_value;
678 rates = rates >> 1;
679 }
680 }
681 }
682
683 size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates);
684 rates_table = sta_priv->supported_rates.ofdm_rates;
685 for (i = 0; i < size; i++) {
686 if (rates & 0x01) {
687 rates_table[i] = wcn_5ghz_rates[i].hw_value;
688 rates = rates >> 1;
689 }
690 }
691
692 if (sta->ht_cap.ht_supported) {
693 BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) >
694 sizeof(sta_priv->supported_rates.supported_mcs_set));
695 memcpy(sta_priv->supported_rates.supported_mcs_set,
696 sta->ht_cap.mcs.rx_mask,
697 sizeof(sta->ht_cap.mcs.rx_mask));
698 }
699 }
700 void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates)
701 {
702 u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = {
703 HW_RATE_INDEX_6MBPS,
704 HW_RATE_INDEX_9MBPS,
705 HW_RATE_INDEX_12MBPS,
706 HW_RATE_INDEX_18MBPS,
707 HW_RATE_INDEX_24MBPS,
708 HW_RATE_INDEX_36MBPS,
709 HW_RATE_INDEX_48MBPS,
710 HW_RATE_INDEX_54MBPS
711 };
712 u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = {
713 HW_RATE_INDEX_1MBPS,
714 HW_RATE_INDEX_2MBPS,
715 HW_RATE_INDEX_5_5MBPS,
716 HW_RATE_INDEX_11MBPS
717 };
718
719 rates->op_rate_mode = STA_11n;
720 memcpy(rates->dsss_rates, dsss_rates,
721 sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES);
722 memcpy(rates->ofdm_rates, ofdm_rates,
723 sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES);
724 rates->supported_mcs_set[0] = 0xFF;
725 }
726 static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
727 struct ieee80211_vif *vif,
728 struct ieee80211_bss_conf *bss_conf,
729 u32 changed)
730 {
731 struct wcn36xx *wcn = hw->priv;
732 struct sk_buff *skb = NULL;
733 u16 tim_off, tim_len;
734 enum wcn36xx_hal_link_state link_state;
735 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
736
737 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n",
738 vif, changed);
739
740 mutex_lock(&wcn->conf_mutex);
741
742 if (changed & BSS_CHANGED_BEACON_INFO) {
743 wcn36xx_dbg(WCN36XX_DBG_MAC,
744 "mac bss changed dtim period %d\n",
745 bss_conf->dtim_period);
746
747 vif_priv->dtim_period = bss_conf->dtim_period;
748 }
749
750 if (changed & BSS_CHANGED_PS) {
751 wcn36xx_dbg(WCN36XX_DBG_MAC,
752 "mac bss PS set %d\n",
753 bss_conf->ps);
754 if (bss_conf->ps) {
755 wcn36xx_pmc_enter_bmps_state(wcn, vif);
756 } else {
757 wcn36xx_pmc_exit_bmps_state(wcn, vif);
758 }
759 }
760
761 if (changed & BSS_CHANGED_BSSID) {
762 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n",
763 bss_conf->bssid);
764
765 if (!is_zero_ether_addr(bss_conf->bssid)) {
766 vif_priv->is_joining = true;
767 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
768 wcn36xx_smd_join(wcn, bss_conf->bssid,
769 vif->addr, WCN36XX_HW_CHANNEL(wcn));
770 wcn36xx_smd_config_bss(wcn, vif, NULL,
771 bss_conf->bssid, false);
772 } else {
773 vif_priv->is_joining = false;
774 wcn36xx_smd_delete_bss(wcn, vif);
775 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE;
776 }
777 }
778
779 if (changed & BSS_CHANGED_SSID) {
780 wcn36xx_dbg(WCN36XX_DBG_MAC,
781 "mac bss changed ssid\n");
782 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ",
783 bss_conf->ssid, bss_conf->ssid_len);
784
785 vif_priv->ssid.length = bss_conf->ssid_len;
786 memcpy(&vif_priv->ssid.ssid,
787 bss_conf->ssid,
788 bss_conf->ssid_len);
789 }
790
791 if (changed & BSS_CHANGED_ASSOC) {
792 vif_priv->is_joining = false;
793 if (bss_conf->assoc) {
794 struct ieee80211_sta *sta;
795 struct wcn36xx_sta *sta_priv;
796
797 wcn36xx_dbg(WCN36XX_DBG_MAC,
798 "mac assoc bss %pM vif %pM AID=%d\n",
799 bss_conf->bssid,
800 vif->addr,
801 bss_conf->aid);
802
803 vif_priv->sta_assoc = true;
804
805 /*
806 * Holding conf_mutex ensures mutal exclusion with
807 * wcn36xx_sta_remove() and as such ensures that sta
808 * won't be freed while we're operating on it. As such
809 * we do not need to hold the rcu_read_lock().
810 */
811 sta = ieee80211_find_sta(vif, bss_conf->bssid);
812 if (!sta) {
813 wcn36xx_err("sta %pM is not found\n",
814 bss_conf->bssid);
815 goto out;
816 }
817 sta_priv = wcn36xx_sta_to_priv(sta);
818
819 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
820
821 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid,
822 vif->addr,
823 WCN36XX_HAL_LINK_POSTASSOC_STATE);
824 wcn36xx_smd_config_bss(wcn, vif, sta,
825 bss_conf->bssid,
826 true);
827 sta_priv->aid = bss_conf->aid;
828 /*
829 * config_sta must be called from because this is the
830 * place where AID is available.
831 */
832 wcn36xx_smd_config_sta(wcn, vif, sta);
833 } else {
834 wcn36xx_dbg(WCN36XX_DBG_MAC,
835 "disassociated bss %pM vif %pM AID=%d\n",
836 bss_conf->bssid,
837 vif->addr,
838 bss_conf->aid);
839 vif_priv->sta_assoc = false;
840 wcn36xx_smd_set_link_st(wcn,
841 bss_conf->bssid,
842 vif->addr,
843 WCN36XX_HAL_LINK_IDLE_STATE);
844 }
845 }
846
847 if (changed & BSS_CHANGED_AP_PROBE_RESP) {
848 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n");
849 skb = ieee80211_proberesp_get(hw, vif);
850 if (!skb) {
851 wcn36xx_err("failed to alloc probereq skb\n");
852 goto out;
853 }
854
855 wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb);
856 dev_kfree_skb(skb);
857 }
858
859 if (changed & BSS_CHANGED_BEACON_ENABLED ||
860 changed & BSS_CHANGED_BEACON) {
861 wcn36xx_dbg(WCN36XX_DBG_MAC,
862 "mac bss changed beacon enabled %d\n",
863 bss_conf->enable_beacon);
864
865 if (bss_conf->enable_beacon) {
866 vif_priv->dtim_period = bss_conf->dtim_period;
867 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
868 wcn36xx_smd_config_bss(wcn, vif, NULL,
869 vif->addr, false);
870 skb = ieee80211_beacon_get_tim(hw, vif, &tim_off,
871 &tim_len);
872 if (!skb) {
873 wcn36xx_err("failed to alloc beacon skb\n");
874 goto out;
875 }
876 wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0);
877 dev_kfree_skb(skb);
878
879 if (vif->type == NL80211_IFTYPE_ADHOC ||
880 vif->type == NL80211_IFTYPE_MESH_POINT)
881 link_state = WCN36XX_HAL_LINK_IBSS_STATE;
882 else
883 link_state = WCN36XX_HAL_LINK_AP_STATE;
884
885 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
886 link_state);
887 } else {
888 wcn36xx_smd_delete_bss(wcn, vif);
889 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
890 WCN36XX_HAL_LINK_IDLE_STATE);
891 }
892 }
893 out:
894
895 mutex_unlock(&wcn->conf_mutex);
896
897 return;
898 }
899
900 /* this is required when using IEEE80211_HW_HAS_RATE_CONTROL */
901 static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
902 {
903 struct wcn36xx *wcn = hw->priv;
904 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value);
905
906 mutex_lock(&wcn->conf_mutex);
907 wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value);
908 mutex_unlock(&wcn->conf_mutex);
909
910 return 0;
911 }
912
913 static void wcn36xx_remove_interface(struct ieee80211_hw *hw,
914 struct ieee80211_vif *vif)
915 {
916 struct wcn36xx *wcn = hw->priv;
917 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
918 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif);
919
920 mutex_lock(&wcn->conf_mutex);
921
922 list_del(&vif_priv->list);
923 wcn36xx_smd_delete_sta_self(wcn, vif->addr);
924
925 mutex_unlock(&wcn->conf_mutex);
926 }
927
928 static int wcn36xx_add_interface(struct ieee80211_hw *hw,
929 struct ieee80211_vif *vif)
930 {
931 struct wcn36xx *wcn = hw->priv;
932 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
933
934 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n",
935 vif, vif->type);
936
937 if (!(NL80211_IFTYPE_STATION == vif->type ||
938 NL80211_IFTYPE_AP == vif->type ||
939 NL80211_IFTYPE_ADHOC == vif->type ||
940 NL80211_IFTYPE_MESH_POINT == vif->type)) {
941 wcn36xx_warn("Unsupported interface type requested: %d\n",
942 vif->type);
943 return -EOPNOTSUPP;
944 }
945
946 mutex_lock(&wcn->conf_mutex);
947
948 list_add(&vif_priv->list, &wcn->vif_list);
949 wcn36xx_smd_add_sta_self(wcn, vif);
950
951 mutex_unlock(&wcn->conf_mutex);
952
953 return 0;
954 }
955
956 static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
957 struct ieee80211_sta *sta)
958 {
959 struct wcn36xx *wcn = hw->priv;
960 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
961 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
962 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n",
963 vif, sta->addr);
964
965 mutex_lock(&wcn->conf_mutex);
966
967 spin_lock_init(&sta_priv->ampdu_lock);
968 sta_priv->vif = vif_priv;
969 /*
970 * For STA mode HW will be configured on BSS_CHANGED_ASSOC because
971 * at this stage AID is not available yet.
972 */
973 if (NL80211_IFTYPE_STATION != vif->type) {
974 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
975 sta_priv->aid = sta->aid;
976 wcn36xx_smd_config_sta(wcn, vif, sta);
977 }
978
979 mutex_unlock(&wcn->conf_mutex);
980
981 return 0;
982 }
983
984 static int wcn36xx_sta_remove(struct ieee80211_hw *hw,
985 struct ieee80211_vif *vif,
986 struct ieee80211_sta *sta)
987 {
988 struct wcn36xx *wcn = hw->priv;
989 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
990
991 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n",
992 vif, sta->addr, sta_priv->sta_index);
993
994 mutex_lock(&wcn->conf_mutex);
995
996 wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index);
997 sta_priv->vif = NULL;
998
999 mutex_unlock(&wcn->conf_mutex);
1000
1001 return 0;
1002 }
1003
1004 #ifdef CONFIG_PM
1005
1006 static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow)
1007 {
1008 struct wcn36xx *wcn = hw->priv;
1009
1010 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n");
1011
1012 flush_workqueue(wcn->hal_ind_wq);
1013 wcn36xx_smd_set_power_params(wcn, true);
1014 return 0;
1015 }
1016
1017 static int wcn36xx_resume(struct ieee80211_hw *hw)
1018 {
1019 struct wcn36xx *wcn = hw->priv;
1020
1021 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n");
1022
1023 flush_workqueue(wcn->hal_ind_wq);
1024 wcn36xx_smd_set_power_params(wcn, false);
1025 return 0;
1026 }
1027
1028 #endif
1029
1030 static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
1031 struct ieee80211_vif *vif,
1032 struct ieee80211_ampdu_params *params)
1033 {
1034 struct wcn36xx *wcn = hw->priv;
1035 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(params->sta);
1036 struct ieee80211_sta *sta = params->sta;
1037 enum ieee80211_ampdu_mlme_action action = params->action;
1038 u16 tid = params->tid;
1039 u16 *ssn = &params->ssn;
1040
1041 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n",
1042 action, tid);
1043
1044 mutex_lock(&wcn->conf_mutex);
1045
1046 switch (action) {
1047 case IEEE80211_AMPDU_RX_START:
1048 sta_priv->tid = tid;
1049 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0,
1050 get_sta_index(vif, sta_priv));
1051 wcn36xx_smd_add_ba(wcn);
1052 wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv));
1053 break;
1054 case IEEE80211_AMPDU_RX_STOP:
1055 wcn36xx_smd_del_ba(wcn, tid, get_sta_index(vif, sta_priv));
1056 break;
1057 case IEEE80211_AMPDU_TX_START:
1058 spin_lock_bh(&sta_priv->ampdu_lock);
1059 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_START;
1060 spin_unlock_bh(&sta_priv->ampdu_lock);
1061
1062 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1063 break;
1064 case IEEE80211_AMPDU_TX_OPERATIONAL:
1065 spin_lock_bh(&sta_priv->ampdu_lock);
1066 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_OPERATIONAL;
1067 spin_unlock_bh(&sta_priv->ampdu_lock);
1068
1069 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 1,
1070 get_sta_index(vif, sta_priv));
1071 break;
1072 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1073 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1074 case IEEE80211_AMPDU_TX_STOP_CONT:
1075 spin_lock_bh(&sta_priv->ampdu_lock);
1076 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_NONE;
1077 spin_unlock_bh(&sta_priv->ampdu_lock);
1078
1079 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1080 break;
1081 default:
1082 wcn36xx_err("Unknown AMPDU action\n");
1083 }
1084
1085 mutex_unlock(&wcn->conf_mutex);
1086
1087 return 0;
1088 }
1089
1090 static const struct ieee80211_ops wcn36xx_ops = {
1091 .start = wcn36xx_start,
1092 .stop = wcn36xx_stop,
1093 .add_interface = wcn36xx_add_interface,
1094 .remove_interface = wcn36xx_remove_interface,
1095 #ifdef CONFIG_PM
1096 .suspend = wcn36xx_suspend,
1097 .resume = wcn36xx_resume,
1098 #endif
1099 .config = wcn36xx_config,
1100 .prepare_multicast = wcn36xx_prepare_multicast,
1101 .configure_filter = wcn36xx_configure_filter,
1102 .tx = wcn36xx_tx,
1103 .set_key = wcn36xx_set_key,
1104 .hw_scan = wcn36xx_hw_scan,
1105 .cancel_hw_scan = wcn36xx_cancel_hw_scan,
1106 .bss_info_changed = wcn36xx_bss_info_changed,
1107 .set_rts_threshold = wcn36xx_set_rts_threshold,
1108 .sta_add = wcn36xx_sta_add,
1109 .sta_remove = wcn36xx_sta_remove,
1110 .ampdu_action = wcn36xx_ampdu_action,
1111 };
1112
1113 static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
1114 {
1115 int ret = 0;
1116
1117 static const u32 cipher_suites[] = {
1118 WLAN_CIPHER_SUITE_WEP40,
1119 WLAN_CIPHER_SUITE_WEP104,
1120 WLAN_CIPHER_SUITE_TKIP,
1121 WLAN_CIPHER_SUITE_CCMP,
1122 };
1123
1124 ieee80211_hw_set(wcn->hw, TIMING_BEACON_ONLY);
1125 ieee80211_hw_set(wcn->hw, AMPDU_AGGREGATION);
1126 ieee80211_hw_set(wcn->hw, CONNECTION_MONITOR);
1127 ieee80211_hw_set(wcn->hw, SUPPORTS_PS);
1128 ieee80211_hw_set(wcn->hw, SIGNAL_DBM);
1129 ieee80211_hw_set(wcn->hw, HAS_RATE_CONTROL);
1130 ieee80211_hw_set(wcn->hw, SINGLE_SCAN_ON_ALL_BANDS);
1131
1132 wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1133 BIT(NL80211_IFTYPE_AP) |
1134 BIT(NL80211_IFTYPE_ADHOC) |
1135 BIT(NL80211_IFTYPE_MESH_POINT);
1136
1137 wcn->hw->wiphy->bands[NL80211_BAND_2GHZ] = &wcn_band_2ghz;
1138 wcn->hw->wiphy->bands[NL80211_BAND_5GHZ] = &wcn_band_5ghz;
1139
1140 wcn->hw->wiphy->max_scan_ssids = WCN36XX_MAX_SCAN_SSIDS;
1141 wcn->hw->wiphy->max_scan_ie_len = WCN36XX_MAX_SCAN_IE_LEN;
1142
1143 wcn->hw->wiphy->cipher_suites = cipher_suites;
1144 wcn->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
1145
1146 wcn->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
1147
1148 #ifdef CONFIG_PM
1149 wcn->hw->wiphy->wowlan = &wowlan_support;
1150 #endif
1151
1152 wcn->hw->max_listen_interval = 200;
1153
1154 wcn->hw->queues = 4;
1155
1156 SET_IEEE80211_DEV(wcn->hw, wcn->dev);
1157
1158 wcn->hw->sta_data_size = sizeof(struct wcn36xx_sta);
1159 wcn->hw->vif_data_size = sizeof(struct wcn36xx_vif);
1160
1161 wiphy_ext_feature_set(wcn->hw->wiphy,
1162 NL80211_EXT_FEATURE_CQM_RSSI_LIST);
1163
1164 return ret;
1165 }
1166
1167 static int wcn36xx_platform_get_resources(struct wcn36xx *wcn,
1168 struct platform_device *pdev)
1169 {
1170 struct device_node *mmio_node;
1171 struct resource *res;
1172 int index;
1173 int ret;
1174
1175 /* Set TX IRQ */
1176 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "tx");
1177 if (!res) {
1178 wcn36xx_err("failed to get tx_irq\n");
1179 return -ENOENT;
1180 }
1181 wcn->tx_irq = res->start;
1182
1183 /* Set RX IRQ */
1184 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "rx");
1185 if (!res) {
1186 wcn36xx_err("failed to get rx_irq\n");
1187 return -ENOENT;
1188 }
1189 wcn->rx_irq = res->start;
1190
1191 /* Acquire SMSM tx enable handle */
1192 wcn->tx_enable_state = qcom_smem_state_get(&pdev->dev,
1193 "tx-enable", &wcn->tx_enable_state_bit);
1194 if (IS_ERR(wcn->tx_enable_state)) {
1195 wcn36xx_err("failed to get tx-enable state\n");
1196 return PTR_ERR(wcn->tx_enable_state);
1197 }
1198
1199 /* Acquire SMSM tx rings empty handle */
1200 wcn->tx_rings_empty_state = qcom_smem_state_get(&pdev->dev,
1201 "tx-rings-empty", &wcn->tx_rings_empty_state_bit);
1202 if (IS_ERR(wcn->tx_rings_empty_state)) {
1203 wcn36xx_err("failed to get tx-rings-empty state\n");
1204 return PTR_ERR(wcn->tx_rings_empty_state);
1205 }
1206
1207 mmio_node = of_parse_phandle(pdev->dev.parent->of_node, "qcom,mmio", 0);
1208 if (!mmio_node) {
1209 wcn36xx_err("failed to acquire qcom,mmio reference\n");
1210 return -EINVAL;
1211 }
1212
1213 wcn->is_pronto = !!of_device_is_compatible(mmio_node, "qcom,pronto");
1214
1215 /* Map the CCU memory */
1216 index = of_property_match_string(mmio_node, "reg-names", "ccu");
1217 wcn->ccu_base = of_iomap(mmio_node, index);
1218 if (!wcn->ccu_base) {
1219 wcn36xx_err("failed to map ccu memory\n");
1220 ret = -ENOMEM;
1221 goto put_mmio_node;
1222 }
1223
1224 /* Map the DXE memory */
1225 index = of_property_match_string(mmio_node, "reg-names", "dxe");
1226 wcn->dxe_base = of_iomap(mmio_node, index);
1227 if (!wcn->dxe_base) {
1228 wcn36xx_err("failed to map dxe memory\n");
1229 ret = -ENOMEM;
1230 goto unmap_ccu;
1231 }
1232
1233 of_node_put(mmio_node);
1234 return 0;
1235
1236 unmap_ccu:
1237 iounmap(wcn->ccu_base);
1238 put_mmio_node:
1239 of_node_put(mmio_node);
1240 return ret;
1241 }
1242
1243 static int wcn36xx_probe(struct platform_device *pdev)
1244 {
1245 struct ieee80211_hw *hw;
1246 struct wcn36xx *wcn;
1247 void *wcnss;
1248 int ret;
1249 const u8 *addr;
1250
1251 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe\n");
1252
1253 wcnss = dev_get_drvdata(pdev->dev.parent);
1254
1255 hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops);
1256 if (!hw) {
1257 wcn36xx_err("failed to alloc hw\n");
1258 ret = -ENOMEM;
1259 goto out_err;
1260 }
1261 platform_set_drvdata(pdev, hw);
1262 wcn = hw->priv;
1263 wcn->hw = hw;
1264 wcn->dev = &pdev->dev;
1265 mutex_init(&wcn->conf_mutex);
1266 mutex_init(&wcn->hal_mutex);
1267 mutex_init(&wcn->scan_lock);
1268
1269 INIT_WORK(&wcn->scan_work, wcn36xx_hw_scan_worker);
1270
1271 wcn->smd_channel = qcom_wcnss_open_channel(wcnss, "WLAN_CTRL", wcn36xx_smd_rsp_process, hw);
1272 if (IS_ERR(wcn->smd_channel)) {
1273 wcn36xx_err("failed to open WLAN_CTRL channel\n");
1274 ret = PTR_ERR(wcn->smd_channel);
1275 goto out_wq;
1276 }
1277
1278 addr = of_get_property(pdev->dev.of_node, "local-mac-address", &ret);
1279 if (addr && ret != ETH_ALEN) {
1280 wcn36xx_err("invalid local-mac-address\n");
1281 ret = -EINVAL;
1282 goto out_wq;
1283 } else if (addr) {
1284 wcn36xx_info("mac address: %pM\n", addr);
1285 SET_IEEE80211_PERM_ADDR(wcn->hw, addr);
1286 }
1287
1288 ret = wcn36xx_platform_get_resources(wcn, pdev);
1289 if (ret)
1290 goto out_wq;
1291
1292 wcn36xx_init_ieee80211(wcn);
1293 ret = ieee80211_register_hw(wcn->hw);
1294 if (ret)
1295 goto out_unmap;
1296
1297 return 0;
1298
1299 out_unmap:
1300 iounmap(wcn->ccu_base);
1301 iounmap(wcn->dxe_base);
1302 out_wq:
1303 ieee80211_free_hw(hw);
1304 out_err:
1305 return ret;
1306 }
1307
1308 static int wcn36xx_remove(struct platform_device *pdev)
1309 {
1310 struct ieee80211_hw *hw = platform_get_drvdata(pdev);
1311 struct wcn36xx *wcn = hw->priv;
1312 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n");
1313
1314 release_firmware(wcn->nv);
1315
1316 ieee80211_unregister_hw(hw);
1317
1318 qcom_smem_state_put(wcn->tx_enable_state);
1319 qcom_smem_state_put(wcn->tx_rings_empty_state);
1320
1321 rpmsg_destroy_ept(wcn->smd_channel);
1322
1323 iounmap(wcn->dxe_base);
1324 iounmap(wcn->ccu_base);
1325
1326 mutex_destroy(&wcn->hal_mutex);
1327 ieee80211_free_hw(hw);
1328
1329 return 0;
1330 }
1331
1332 static const struct of_device_id wcn36xx_of_match[] = {
1333 { .compatible = "qcom,wcnss-wlan" },
1334 {}
1335 };
1336 MODULE_DEVICE_TABLE(of, wcn36xx_of_match);
1337
1338 static struct platform_driver wcn36xx_driver = {
1339 .probe = wcn36xx_probe,
1340 .remove = wcn36xx_remove,
1341 .driver = {
1342 .name = "wcn36xx",
1343 .of_match_table = wcn36xx_of_match,
1344 },
1345 };
1346
1347 module_platform_driver(wcn36xx_driver);
1348
1349 MODULE_LICENSE("Dual BSD/GPL");
1350 MODULE_AUTHOR("Eugene Krasnikov k.eugene.e@gmail.com");
1351 MODULE_FIRMWARE(WLAN_NV_FILE);