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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 "wcn36xx.h"
23
24unsigned int wcn36xx_dbg_mask;
25module_param_named(debug_mask, wcn36xx_dbg_mask, uint, 0644);
26MODULE_PARM_DESC(debug_mask, "Debugging mask");
27
28#define CHAN2G(_freq, _idx) { \
29 .band = IEEE80211_BAND_2GHZ, \
30 .center_freq = (_freq), \
31 .hw_value = (_idx), \
32 .max_power = 25, \
33}
34
35#define CHAN5G(_freq, _idx) { \
36 .band = IEEE80211_BAND_5GHZ, \
37 .center_freq = (_freq), \
38 .hw_value = (_idx), \
39 .max_power = 25, \
40}
41
42
43
44static struct ieee80211_channel wcn_2ghz_channels[] = {
45 CHAN2G(2412, 1),
46 CHAN2G(2417, 2),
47 CHAN2G(2422, 3),
48 CHAN2G(2427, 4),
49 CHAN2G(2432, 5),
50 CHAN2G(2437, 6),
51 CHAN2G(2442, 7),
52 CHAN2G(2447, 8),
53 CHAN2G(2452, 9),
54 CHAN2G(2457, 10),
55 CHAN2G(2462, 11),
56 CHAN2G(2467, 12),
57 CHAN2G(2472, 13),
58 CHAN2G(2484, 14)
59
60};
61
62static struct ieee80211_channel wcn_5ghz_channels[] = {
63 CHAN5G(5180, 36),
64 CHAN5G(5200, 40),
65 CHAN5G(5220, 44),
66 CHAN5G(5240, 48),
67 CHAN5G(5260, 52),
68 CHAN5G(5280, 56),
69 CHAN5G(5300, 60),
70 CHAN5G(5320, 64),
71 CHAN5G(5500, 100),
72 CHAN5G(5520, 104),
73 CHAN5G(5540, 108),
74 CHAN5G(5560, 112),
75 CHAN5G(5580, 116),
76 CHAN5G(5600, 120),
77 CHAN5G(5620, 124),
78 CHAN5G(5640, 128),
79 CHAN5G(5660, 132),
80 CHAN5G(5700, 140),
81 CHAN5G(5745, 149),
82 CHAN5G(5765, 153),
83 CHAN5G(5785, 157),
84 CHAN5G(5805, 161),
85 CHAN5G(5825, 165)
86};
87
88#define RATE(_bitrate, _hw_rate, _flags) { \
89 .bitrate = (_bitrate), \
90 .flags = (_flags), \
91 .hw_value = (_hw_rate), \
92 .hw_value_short = (_hw_rate) \
93}
94
95static struct ieee80211_rate wcn_2ghz_rates[] = {
96 RATE(10, HW_RATE_INDEX_1MBPS, 0),
97 RATE(20, HW_RATE_INDEX_2MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
98 RATE(55, HW_RATE_INDEX_5_5MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
99 RATE(110, HW_RATE_INDEX_11MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
100 RATE(60, HW_RATE_INDEX_6MBPS, 0),
101 RATE(90, HW_RATE_INDEX_9MBPS, 0),
102 RATE(120, HW_RATE_INDEX_12MBPS, 0),
103 RATE(180, HW_RATE_INDEX_18MBPS, 0),
104 RATE(240, HW_RATE_INDEX_24MBPS, 0),
105 RATE(360, HW_RATE_INDEX_36MBPS, 0),
106 RATE(480, HW_RATE_INDEX_48MBPS, 0),
107 RATE(540, HW_RATE_INDEX_54MBPS, 0)
108};
109
110static struct ieee80211_rate wcn_5ghz_rates[] = {
111 RATE(60, HW_RATE_INDEX_6MBPS, 0),
112 RATE(90, HW_RATE_INDEX_9MBPS, 0),
113 RATE(120, HW_RATE_INDEX_12MBPS, 0),
114 RATE(180, HW_RATE_INDEX_18MBPS, 0),
115 RATE(240, HW_RATE_INDEX_24MBPS, 0),
116 RATE(360, HW_RATE_INDEX_36MBPS, 0),
117 RATE(480, HW_RATE_INDEX_48MBPS, 0),
118 RATE(540, HW_RATE_INDEX_54MBPS, 0)
119};
120
121static struct ieee80211_supported_band wcn_band_2ghz = {
122 .channels = wcn_2ghz_channels,
123 .n_channels = ARRAY_SIZE(wcn_2ghz_channels),
124 .bitrates = wcn_2ghz_rates,
125 .n_bitrates = ARRAY_SIZE(wcn_2ghz_rates),
126 .ht_cap = {
127 .cap = IEEE80211_HT_CAP_GRN_FLD |
128 IEEE80211_HT_CAP_SGI_20 |
129 IEEE80211_HT_CAP_DSSSCCK40 |
130 IEEE80211_HT_CAP_LSIG_TXOP_PROT,
131 .ht_supported = true,
132 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
133 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
134 .mcs = {
135 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
136 .rx_highest = cpu_to_le16(72),
137 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
138 }
139 }
140};
141
142static struct ieee80211_supported_band wcn_band_5ghz = {
143 .channels = wcn_5ghz_channels,
144 .n_channels = ARRAY_SIZE(wcn_5ghz_channels),
145 .bitrates = wcn_5ghz_rates,
146 .n_bitrates = ARRAY_SIZE(wcn_5ghz_rates),
147 .ht_cap = {
148 .cap = IEEE80211_HT_CAP_GRN_FLD |
149 IEEE80211_HT_CAP_SGI_20 |
150 IEEE80211_HT_CAP_DSSSCCK40 |
151 IEEE80211_HT_CAP_LSIG_TXOP_PROT |
152 IEEE80211_HT_CAP_SGI_40 |
153 IEEE80211_HT_CAP_SUP_WIDTH_20_40,
154 .ht_supported = true,
155 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
156 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
157 .mcs = {
158 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
159 .rx_highest = cpu_to_le16(72),
160 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
161 }
162 }
163};
164
165#ifdef CONFIG_PM
166
167static const struct wiphy_wowlan_support wowlan_support = {
168 .flags = WIPHY_WOWLAN_ANY
169};
170
171#endif
172
173static inline u8 get_sta_index(struct ieee80211_vif *vif,
174 struct wcn36xx_sta *sta_priv)
175{
176 return NL80211_IFTYPE_STATION == vif->type ?
177 sta_priv->bss_sta_index :
178 sta_priv->sta_index;
179}
180
181static const char * const wcn36xx_caps_names[] = {
182 "MCC",
183 "P2P",
184 "DOT11AC",
185 "SLM_SESSIONIZATION",
186 "DOT11AC_OPMODE",
187 "SAP32STA",
188 "TDLS",
189 "P2P_GO_NOA_DECOUPLE_INIT_SCAN",
190 "WLANACTIVE_OFFLOAD",
191 "BEACON_OFFLOAD",
192 "SCAN_OFFLOAD",
193 "ROAM_OFFLOAD",
194 "BCN_MISS_OFFLOAD",
195 "STA_POWERSAVE",
196 "STA_ADVANCED_PWRSAVE",
197 "AP_UAPSD",
198 "AP_DFS",
199 "BLOCKACK",
200 "PHY_ERR",
201 "BCN_FILTER",
202 "RTT",
203 "RATECTRL",
204 "WOW"
205};
206
207static const char *wcn36xx_get_cap_name(enum place_holder_in_cap_bitmap x)
208{
209 if (x >= ARRAY_SIZE(wcn36xx_caps_names))
210 return "UNKNOWN";
211 return wcn36xx_caps_names[x];
212}
213
214static void wcn36xx_feat_caps_info(struct wcn36xx *wcn)
215{
216 int i;
217
218 for (i = 0; i < MAX_FEATURE_SUPPORTED; i++) {
219 if (get_feat_caps(wcn->fw_feat_caps, i))
220 wcn36xx_info("FW Cap %s\n", wcn36xx_get_cap_name(i));
221 }
222}
223
224static void wcn36xx_detect_chip_version(struct wcn36xx *wcn)
225{
226 if (get_feat_caps(wcn->fw_feat_caps, DOT11AC)) {
227 wcn36xx_info("Chip is 3680\n");
228 wcn->chip_version = WCN36XX_CHIP_3680;
229 } else {
230 wcn36xx_info("Chip is 3660\n");
231 wcn->chip_version = WCN36XX_CHIP_3660;
232 }
233}
234
235static int wcn36xx_start(struct ieee80211_hw *hw)
236{
237 struct wcn36xx *wcn = hw->priv;
238 int ret;
239
240 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac start\n");
241
242
243 ret = wcn36xx_smd_open(wcn);
244 if (ret) {
245 wcn36xx_err("Failed to open smd channel: %d\n", ret);
246 goto out_err;
247 }
248
249
250 ret = wcn36xx_dxe_allocate_mem_pools(wcn);
251 if (ret) {
252 wcn36xx_err("Failed to alloc DXE mempool: %d\n", ret);
253 goto out_smd_close;
254 }
255
256 ret = wcn36xx_dxe_alloc_ctl_blks(wcn);
257 if (ret) {
258 wcn36xx_err("Failed to alloc DXE ctl blocks: %d\n", ret);
259 goto out_free_dxe_pool;
260 }
261
262 wcn->hal_buf = kmalloc(WCN36XX_HAL_BUF_SIZE, GFP_KERNEL);
263 if (!wcn->hal_buf) {
264 wcn36xx_err("Failed to allocate smd buf\n");
265 ret = -ENOMEM;
266 goto out_free_dxe_ctl;
267 }
268
269 ret = wcn36xx_smd_load_nv(wcn);
270 if (ret) {
271 wcn36xx_err("Failed to push NV to chip\n");
272 goto out_free_smd_buf;
273 }
274
275 ret = wcn36xx_smd_start(wcn);
276 if (ret) {
277 wcn36xx_err("Failed to start chip\n");
278 goto out_free_smd_buf;
279 }
280
281 if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
282 ret = wcn36xx_smd_feature_caps_exchange(wcn);
283 if (ret)
284 wcn36xx_warn("Exchange feature caps failed\n");
285 else
286 wcn36xx_feat_caps_info(wcn);
287 }
288
289 wcn36xx_detect_chip_version(wcn);
290
291
292 ret = wcn36xx_dxe_init(wcn);
293 if (ret) {
294 wcn36xx_err("DXE init failed\n");
295 goto out_smd_stop;
296 }
297
298 wcn36xx_debugfs_init(wcn);
299
300 INIT_LIST_HEAD(&wcn->vif_list);
301 return 0;
302
303out_smd_stop:
304 wcn36xx_smd_stop(wcn);
305out_free_smd_buf:
306 kfree(wcn->hal_buf);
307out_free_dxe_pool:
308 wcn36xx_dxe_free_mem_pools(wcn);
309out_free_dxe_ctl:
310 wcn36xx_dxe_free_ctl_blks(wcn);
311out_smd_close:
312 wcn36xx_smd_close(wcn);
313out_err:
314 return ret;
315}
316
317static void wcn36xx_stop(struct ieee80211_hw *hw)
318{
319 struct wcn36xx *wcn = hw->priv;
320
321 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac stop\n");
322
323 wcn36xx_debugfs_exit(wcn);
324 wcn36xx_smd_stop(wcn);
325 wcn36xx_dxe_deinit(wcn);
326 wcn36xx_smd_close(wcn);
327
328 wcn36xx_dxe_free_mem_pools(wcn);
329 wcn36xx_dxe_free_ctl_blks(wcn);
330
331 kfree(wcn->hal_buf);
332}
333
334static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
335{
336 struct wcn36xx *wcn = hw->priv;
337 struct ieee80211_vif *vif = NULL;
338 struct wcn36xx_vif *tmp;
339
340 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed);
341
342 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
343 int ch = WCN36XX_HW_CHANNEL(wcn);
344 wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d\n",
345 ch);
346 list_for_each_entry(tmp, &wcn->vif_list, list) {
347 vif = container_of((void *)tmp,
348 struct ieee80211_vif,
349 drv_priv);
350 wcn36xx_smd_switch_channel(wcn, vif, ch);
351 }
352 }
353
354 return 0;
355}
356
357#define WCN36XX_SUPPORTED_FILTERS (0)
358
359static void wcn36xx_configure_filter(struct ieee80211_hw *hw,
360 unsigned int changed,
361 unsigned int *total, u64 multicast)
362{
363 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac configure filter\n");
364
365 *total &= WCN36XX_SUPPORTED_FILTERS;
366}
367
368static void wcn36xx_tx(struct ieee80211_hw *hw,
369 struct ieee80211_tx_control *control,
370 struct sk_buff *skb)
371{
372 struct wcn36xx *wcn = hw->priv;
373 struct wcn36xx_sta *sta_priv = NULL;
374
375 if (control->sta)
376 sta_priv = (struct wcn36xx_sta *)control->sta->drv_priv;
377
378 if (wcn36xx_start_tx(wcn, sta_priv, skb))
379 ieee80211_free_txskb(wcn->hw, skb);
380}
381
382static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
383 struct ieee80211_vif *vif,
384 struct ieee80211_sta *sta,
385 struct ieee80211_key_conf *key_conf)
386{
387 struct wcn36xx *wcn = hw->priv;
388 struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
389 struct wcn36xx_sta *sta_priv = vif_priv->sta;
390 int ret = 0;
391 u8 key[WLAN_MAX_KEY_LEN];
392
393 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 set key\n");
394 wcn36xx_dbg(WCN36XX_DBG_MAC, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x\n",
395 cmd, key_conf->cipher, key_conf->keyidx,
396 key_conf->keylen, key_conf->flags);
397 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "KEY: ",
398 key_conf->key,
399 key_conf->keylen);
400
401 switch (key_conf->cipher) {
402 case WLAN_CIPHER_SUITE_WEP40:
403 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
404 break;
405 case WLAN_CIPHER_SUITE_WEP104:
406 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
407 break;
408 case WLAN_CIPHER_SUITE_CCMP:
409 vif_priv->encrypt_type = WCN36XX_HAL_ED_CCMP;
410 break;
411 case WLAN_CIPHER_SUITE_TKIP:
412 vif_priv->encrypt_type = WCN36XX_HAL_ED_TKIP;
413 break;
414 default:
415 wcn36xx_err("Unsupported key type 0x%x\n",
416 key_conf->cipher);
417 ret = -EOPNOTSUPP;
418 goto out;
419 }
420
421 switch (cmd) {
422 case SET_KEY:
423 if (WCN36XX_HAL_ED_TKIP == vif_priv->encrypt_type) {
424
425
426
427
428
429
430
431 memcpy(key, key_conf->key, 16);
432 memcpy(key + 16, key_conf->key + 24, 8);
433 memcpy(key + 24, key_conf->key + 16, 8);
434 } else {
435 memcpy(key, key_conf->key, key_conf->keylen);
436 }
437
438 if (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags) {
439 sta_priv->is_data_encrypted = true;
440
441 if (NL80211_IFTYPE_STATION == vif->type)
442 wcn36xx_smd_config_bss(wcn,
443 vif,
444 sta,
445 sta->addr,
446 true);
447
448 wcn36xx_smd_set_stakey(wcn,
449 vif_priv->encrypt_type,
450 key_conf->keyidx,
451 key_conf->keylen,
452 key,
453 get_sta_index(vif, sta_priv));
454 } else {
455 wcn36xx_smd_set_bsskey(wcn,
456 vif_priv->encrypt_type,
457 key_conf->keyidx,
458 key_conf->keylen,
459 key);
460 if ((WLAN_CIPHER_SUITE_WEP40 == key_conf->cipher) ||
461 (WLAN_CIPHER_SUITE_WEP104 == key_conf->cipher)) {
462 sta_priv->is_data_encrypted = true;
463 wcn36xx_smd_set_stakey(wcn,
464 vif_priv->encrypt_type,
465 key_conf->keyidx,
466 key_conf->keylen,
467 key,
468 get_sta_index(vif, sta_priv));
469 }
470 }
471 break;
472 case DISABLE_KEY:
473 if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) {
474 wcn36xx_smd_remove_bsskey(wcn,
475 vif_priv->encrypt_type,
476 key_conf->keyidx);
477 } else {
478 sta_priv->is_data_encrypted = false;
479
480 if (sta_priv->aid)
481 wcn36xx_smd_remove_stakey(wcn,
482 vif_priv->encrypt_type,
483 key_conf->keyidx,
484 get_sta_index(vif, sta_priv));
485 }
486 break;
487 default:
488 wcn36xx_err("Unsupported key cmd 0x%x\n", cmd);
489 ret = -EOPNOTSUPP;
490 goto out;
491 }
492
493out:
494 return ret;
495}
496
497static void wcn36xx_sw_scan_start(struct ieee80211_hw *hw,
498 struct ieee80211_vif *vif,
499 const u8 *mac_addr)
500{
501 struct wcn36xx *wcn = hw->priv;
502
503 wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN);
504 wcn36xx_smd_start_scan(wcn);
505}
506
507static void wcn36xx_sw_scan_complete(struct ieee80211_hw *hw,
508 struct ieee80211_vif *vif)
509{
510 struct wcn36xx *wcn = hw->priv;
511
512 wcn36xx_smd_end_scan(wcn);
513 wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN);
514}
515
516static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta,
517 enum ieee80211_band band)
518{
519 int i, size;
520 u16 *rates_table;
521 struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
522 u32 rates = sta->supp_rates[band];
523
524 memset(&sta_priv->supported_rates, 0,
525 sizeof(sta_priv->supported_rates));
526 sta_priv->supported_rates.op_rate_mode = STA_11n;
527
528 size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates);
529 rates_table = sta_priv->supported_rates.dsss_rates;
530 if (band == IEEE80211_BAND_2GHZ) {
531 for (i = 0; i < size; i++) {
532 if (rates & 0x01) {
533 rates_table[i] = wcn_2ghz_rates[i].hw_value;
534 rates = rates >> 1;
535 }
536 }
537 }
538
539 size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates);
540 rates_table = sta_priv->supported_rates.ofdm_rates;
541 for (i = 0; i < size; i++) {
542 if (rates & 0x01) {
543 rates_table[i] = wcn_5ghz_rates[i].hw_value;
544 rates = rates >> 1;
545 }
546 }
547
548 if (sta->ht_cap.ht_supported) {
549 BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) >
550 sizeof(sta_priv->supported_rates.supported_mcs_set));
551 memcpy(sta_priv->supported_rates.supported_mcs_set,
552 sta->ht_cap.mcs.rx_mask,
553 sizeof(sta->ht_cap.mcs.rx_mask));
554 }
555}
556void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates)
557{
558 u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = {
559 HW_RATE_INDEX_6MBPS,
560 HW_RATE_INDEX_9MBPS,
561 HW_RATE_INDEX_12MBPS,
562 HW_RATE_INDEX_18MBPS,
563 HW_RATE_INDEX_24MBPS,
564 HW_RATE_INDEX_36MBPS,
565 HW_RATE_INDEX_48MBPS,
566 HW_RATE_INDEX_54MBPS
567 };
568 u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = {
569 HW_RATE_INDEX_1MBPS,
570 HW_RATE_INDEX_2MBPS,
571 HW_RATE_INDEX_5_5MBPS,
572 HW_RATE_INDEX_11MBPS
573 };
574
575 rates->op_rate_mode = STA_11n;
576 memcpy(rates->dsss_rates, dsss_rates,
577 sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES);
578 memcpy(rates->ofdm_rates, ofdm_rates,
579 sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES);
580 rates->supported_mcs_set[0] = 0xFF;
581}
582static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
583 struct ieee80211_vif *vif,
584 struct ieee80211_bss_conf *bss_conf,
585 u32 changed)
586{
587 struct wcn36xx *wcn = hw->priv;
588 struct sk_buff *skb = NULL;
589 u16 tim_off, tim_len;
590 enum wcn36xx_hal_link_state link_state;
591 struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
592
593 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n",
594 vif, changed);
595
596 if (changed & BSS_CHANGED_BEACON_INFO) {
597 wcn36xx_dbg(WCN36XX_DBG_MAC,
598 "mac bss changed dtim period %d\n",
599 bss_conf->dtim_period);
600
601 vif_priv->dtim_period = bss_conf->dtim_period;
602 }
603
604 if (changed & BSS_CHANGED_PS) {
605 wcn36xx_dbg(WCN36XX_DBG_MAC,
606 "mac bss PS set %d\n",
607 bss_conf->ps);
608 if (bss_conf->ps) {
609 wcn36xx_pmc_enter_bmps_state(wcn, vif);
610 } else {
611 wcn36xx_pmc_exit_bmps_state(wcn, vif);
612 }
613 }
614
615 if (changed & BSS_CHANGED_BSSID) {
616 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n",
617 bss_conf->bssid);
618
619 if (!is_zero_ether_addr(bss_conf->bssid)) {
620 vif_priv->is_joining = true;
621 vif_priv->bss_index = 0xff;
622 wcn36xx_smd_join(wcn, bss_conf->bssid,
623 vif->addr, WCN36XX_HW_CHANNEL(wcn));
624 wcn36xx_smd_config_bss(wcn, vif, NULL,
625 bss_conf->bssid, false);
626 } else {
627 vif_priv->is_joining = false;
628 wcn36xx_smd_delete_bss(wcn, vif);
629 }
630 }
631
632 if (changed & BSS_CHANGED_SSID) {
633 wcn36xx_dbg(WCN36XX_DBG_MAC,
634 "mac bss changed ssid\n");
635 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ",
636 bss_conf->ssid, bss_conf->ssid_len);
637
638 vif_priv->ssid.length = bss_conf->ssid_len;
639 memcpy(&vif_priv->ssid.ssid,
640 bss_conf->ssid,
641 bss_conf->ssid_len);
642 }
643
644 if (changed & BSS_CHANGED_ASSOC) {
645 vif_priv->is_joining = false;
646 if (bss_conf->assoc) {
647 struct ieee80211_sta *sta;
648 struct wcn36xx_sta *sta_priv;
649
650 wcn36xx_dbg(WCN36XX_DBG_MAC,
651 "mac assoc bss %pM vif %pM AID=%d\n",
652 bss_conf->bssid,
653 vif->addr,
654 bss_conf->aid);
655
656 rcu_read_lock();
657 sta = ieee80211_find_sta(vif, bss_conf->bssid);
658 if (!sta) {
659 wcn36xx_err("sta %pM is not found\n",
660 bss_conf->bssid);
661 rcu_read_unlock();
662 goto out;
663 }
664 sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
665
666 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
667
668 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid,
669 vif->addr,
670 WCN36XX_HAL_LINK_POSTASSOC_STATE);
671 wcn36xx_smd_config_bss(wcn, vif, sta,
672 bss_conf->bssid,
673 true);
674 sta_priv->aid = bss_conf->aid;
675
676
677
678
679 wcn36xx_smd_config_sta(wcn, vif, sta);
680 rcu_read_unlock();
681 } else {
682 wcn36xx_dbg(WCN36XX_DBG_MAC,
683 "disassociated bss %pM vif %pM AID=%d\n",
684 bss_conf->bssid,
685 vif->addr,
686 bss_conf->aid);
687 wcn36xx_smd_set_link_st(wcn,
688 bss_conf->bssid,
689 vif->addr,
690 WCN36XX_HAL_LINK_IDLE_STATE);
691 }
692 }
693
694 if (changed & BSS_CHANGED_AP_PROBE_RESP) {
695 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n");
696 skb = ieee80211_proberesp_get(hw, vif);
697 if (!skb) {
698 wcn36xx_err("failed to alloc probereq skb\n");
699 goto out;
700 }
701
702 wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb);
703 dev_kfree_skb(skb);
704 }
705
706 if (changed & BSS_CHANGED_BEACON_ENABLED ||
707 changed & BSS_CHANGED_BEACON) {
708 wcn36xx_dbg(WCN36XX_DBG_MAC,
709 "mac bss changed beacon enabled %d\n",
710 bss_conf->enable_beacon);
711
712 if (bss_conf->enable_beacon) {
713 vif_priv->dtim_period = bss_conf->dtim_period;
714 vif_priv->bss_index = 0xff;
715 wcn36xx_smd_config_bss(wcn, vif, NULL,
716 vif->addr, false);
717 skb = ieee80211_beacon_get_tim(hw, vif, &tim_off,
718 &tim_len);
719 if (!skb) {
720 wcn36xx_err("failed to alloc beacon skb\n");
721 goto out;
722 }
723 wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0);
724 dev_kfree_skb(skb);
725
726 if (vif->type == NL80211_IFTYPE_ADHOC ||
727 vif->type == NL80211_IFTYPE_MESH_POINT)
728 link_state = WCN36XX_HAL_LINK_IBSS_STATE;
729 else
730 link_state = WCN36XX_HAL_LINK_AP_STATE;
731
732 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
733 link_state);
734 } else {
735 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
736 WCN36XX_HAL_LINK_IDLE_STATE);
737 wcn36xx_smd_delete_bss(wcn, vif);
738 }
739 }
740out:
741 return;
742}
743
744
745static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
746{
747 struct wcn36xx *wcn = hw->priv;
748 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value);
749
750 wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value);
751 return 0;
752}
753
754static void wcn36xx_remove_interface(struct ieee80211_hw *hw,
755 struct ieee80211_vif *vif)
756{
757 struct wcn36xx *wcn = hw->priv;
758 struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
759 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif);
760
761 list_del(&vif_priv->list);
762 wcn36xx_smd_delete_sta_self(wcn, vif->addr);
763}
764
765static int wcn36xx_add_interface(struct ieee80211_hw *hw,
766 struct ieee80211_vif *vif)
767{
768 struct wcn36xx *wcn = hw->priv;
769 struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
770
771 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n",
772 vif, vif->type);
773
774 if (!(NL80211_IFTYPE_STATION == vif->type ||
775 NL80211_IFTYPE_AP == vif->type ||
776 NL80211_IFTYPE_ADHOC == vif->type ||
777 NL80211_IFTYPE_MESH_POINT == vif->type)) {
778 wcn36xx_warn("Unsupported interface type requested: %d\n",
779 vif->type);
780 return -EOPNOTSUPP;
781 }
782
783 list_add(&vif_priv->list, &wcn->vif_list);
784 wcn36xx_smd_add_sta_self(wcn, vif);
785
786 return 0;
787}
788
789static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
790 struct ieee80211_sta *sta)
791{
792 struct wcn36xx *wcn = hw->priv;
793 struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
794 struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
795 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n",
796 vif, sta->addr);
797
798 vif_priv->sta = sta_priv;
799 sta_priv->vif = vif_priv;
800
801
802
803
804 if (NL80211_IFTYPE_STATION != vif->type) {
805 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
806 sta_priv->aid = sta->aid;
807 wcn36xx_smd_config_sta(wcn, vif, sta);
808 }
809 return 0;
810}
811
812static int wcn36xx_sta_remove(struct ieee80211_hw *hw,
813 struct ieee80211_vif *vif,
814 struct ieee80211_sta *sta)
815{
816 struct wcn36xx *wcn = hw->priv;
817 struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
818 struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
819
820 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n",
821 vif, sta->addr, sta_priv->sta_index);
822
823 wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index);
824 vif_priv->sta = NULL;
825 sta_priv->vif = NULL;
826 return 0;
827}
828
829#ifdef CONFIG_PM
830
831static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow)
832{
833 struct wcn36xx *wcn = hw->priv;
834
835 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n");
836
837 flush_workqueue(wcn->hal_ind_wq);
838 wcn36xx_smd_set_power_params(wcn, true);
839 return 0;
840}
841
842static int wcn36xx_resume(struct ieee80211_hw *hw)
843{
844 struct wcn36xx *wcn = hw->priv;
845
846 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n");
847
848 flush_workqueue(wcn->hal_ind_wq);
849 wcn36xx_smd_set_power_params(wcn, false);
850 return 0;
851}
852
853#endif
854
855static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
856 struct ieee80211_vif *vif,
857 enum ieee80211_ampdu_mlme_action action,
858 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
859 u8 buf_size)
860{
861 struct wcn36xx *wcn = hw->priv;
862 struct wcn36xx_sta *sta_priv = NULL;
863
864 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n",
865 action, tid);
866
867 sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
868
869 switch (action) {
870 case IEEE80211_AMPDU_RX_START:
871 sta_priv->tid = tid;
872 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0,
873 get_sta_index(vif, sta_priv));
874 wcn36xx_smd_add_ba(wcn);
875 wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv));
876 ieee80211_start_tx_ba_session(sta, tid, 0);
877 break;
878 case IEEE80211_AMPDU_RX_STOP:
879 wcn36xx_smd_del_ba(wcn, tid, get_sta_index(vif, sta_priv));
880 break;
881 case IEEE80211_AMPDU_TX_START:
882 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
883 break;
884 case IEEE80211_AMPDU_TX_OPERATIONAL:
885 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 1,
886 get_sta_index(vif, sta_priv));
887 break;
888 case IEEE80211_AMPDU_TX_STOP_FLUSH:
889 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
890 case IEEE80211_AMPDU_TX_STOP_CONT:
891 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
892 break;
893 default:
894 wcn36xx_err("Unknown AMPDU action\n");
895 }
896
897 return 0;
898}
899
900static const struct ieee80211_ops wcn36xx_ops = {
901 .start = wcn36xx_start,
902 .stop = wcn36xx_stop,
903 .add_interface = wcn36xx_add_interface,
904 .remove_interface = wcn36xx_remove_interface,
905#ifdef CONFIG_PM
906 .suspend = wcn36xx_suspend,
907 .resume = wcn36xx_resume,
908#endif
909 .config = wcn36xx_config,
910 .configure_filter = wcn36xx_configure_filter,
911 .tx = wcn36xx_tx,
912 .set_key = wcn36xx_set_key,
913 .sw_scan_start = wcn36xx_sw_scan_start,
914 .sw_scan_complete = wcn36xx_sw_scan_complete,
915 .bss_info_changed = wcn36xx_bss_info_changed,
916 .set_rts_threshold = wcn36xx_set_rts_threshold,
917 .sta_add = wcn36xx_sta_add,
918 .sta_remove = wcn36xx_sta_remove,
919 .ampdu_action = wcn36xx_ampdu_action,
920};
921
922static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
923{
924 int ret = 0;
925
926 static const u32 cipher_suites[] = {
927 WLAN_CIPHER_SUITE_WEP40,
928 WLAN_CIPHER_SUITE_WEP104,
929 WLAN_CIPHER_SUITE_TKIP,
930 WLAN_CIPHER_SUITE_CCMP,
931 };
932
933 wcn->hw->flags = IEEE80211_HW_SIGNAL_DBM |
934 IEEE80211_HW_HAS_RATE_CONTROL |
935 IEEE80211_HW_SUPPORTS_PS |
936 IEEE80211_HW_CONNECTION_MONITOR |
937 IEEE80211_HW_AMPDU_AGGREGATION |
938 IEEE80211_HW_TIMING_BEACON_ONLY;
939
940 wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
941 BIT(NL80211_IFTYPE_AP) |
942 BIT(NL80211_IFTYPE_ADHOC) |
943 BIT(NL80211_IFTYPE_MESH_POINT);
944
945 wcn->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wcn_band_2ghz;
946 wcn->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &wcn_band_5ghz;
947
948 wcn->hw->wiphy->cipher_suites = cipher_suites;
949 wcn->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
950
951 wcn->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
952
953#ifdef CONFIG_PM
954 wcn->hw->wiphy->wowlan = &wowlan_support;
955#endif
956
957 wcn->hw->max_listen_interval = 200;
958
959 wcn->hw->queues = 4;
960
961 SET_IEEE80211_DEV(wcn->hw, wcn->dev);
962
963 wcn->hw->sta_data_size = sizeof(struct wcn36xx_sta);
964 wcn->hw->vif_data_size = sizeof(struct wcn36xx_vif);
965
966 return ret;
967}
968
969static int wcn36xx_platform_get_resources(struct wcn36xx *wcn,
970 struct platform_device *pdev)
971{
972 struct resource *res;
973
974 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
975 "wcnss_wlantx_irq");
976 if (!res) {
977 wcn36xx_err("failed to get tx_irq\n");
978 return -ENOENT;
979 }
980 wcn->tx_irq = res->start;
981
982
983 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
984 "wcnss_wlanrx_irq");
985 if (!res) {
986 wcn36xx_err("failed to get rx_irq\n");
987 return -ENOENT;
988 }
989 wcn->rx_irq = res->start;
990
991
992 res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
993 "wcnss_mmio");
994 if (!res) {
995 wcn36xx_err("failed to get mmio\n");
996 return -ENOENT;
997 }
998 wcn->mmio = ioremap(res->start, resource_size(res));
999 if (!wcn->mmio) {
1000 wcn36xx_err("failed to map io memory\n");
1001 return -ENOMEM;
1002 }
1003 return 0;
1004}
1005
1006static int wcn36xx_probe(struct platform_device *pdev)
1007{
1008 struct ieee80211_hw *hw;
1009 struct wcn36xx *wcn;
1010 int ret;
1011 u8 addr[ETH_ALEN];
1012
1013 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe\n");
1014
1015 hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops);
1016 if (!hw) {
1017 wcn36xx_err("failed to alloc hw\n");
1018 ret = -ENOMEM;
1019 goto out_err;
1020 }
1021 platform_set_drvdata(pdev, hw);
1022 wcn = hw->priv;
1023 wcn->hw = hw;
1024 wcn->dev = &pdev->dev;
1025 wcn->ctrl_ops = pdev->dev.platform_data;
1026
1027 mutex_init(&wcn->hal_mutex);
1028
1029 if (!wcn->ctrl_ops->get_hw_mac(addr)) {
1030 wcn36xx_info("mac address: %pM\n", addr);
1031 SET_IEEE80211_PERM_ADDR(wcn->hw, addr);
1032 }
1033
1034 ret = wcn36xx_platform_get_resources(wcn, pdev);
1035 if (ret)
1036 goto out_wq;
1037
1038 wcn36xx_init_ieee80211(wcn);
1039 ret = ieee80211_register_hw(wcn->hw);
1040 if (ret)
1041 goto out_unmap;
1042
1043 return 0;
1044
1045out_unmap:
1046 iounmap(wcn->mmio);
1047out_wq:
1048 ieee80211_free_hw(hw);
1049out_err:
1050 return ret;
1051}
1052static int wcn36xx_remove(struct platform_device *pdev)
1053{
1054 struct ieee80211_hw *hw = platform_get_drvdata(pdev);
1055 struct wcn36xx *wcn = hw->priv;
1056 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n");
1057
1058 release_firmware(wcn->nv);
1059 mutex_destroy(&wcn->hal_mutex);
1060
1061 ieee80211_unregister_hw(hw);
1062 iounmap(wcn->mmio);
1063 ieee80211_free_hw(hw);
1064
1065 return 0;
1066}
1067static const struct platform_device_id wcn36xx_platform_id_table[] = {
1068 {
1069 .name = "wcn36xx",
1070 .driver_data = 0
1071 },
1072 {}
1073};
1074MODULE_DEVICE_TABLE(platform, wcn36xx_platform_id_table);
1075
1076static struct platform_driver wcn36xx_driver = {
1077 .probe = wcn36xx_probe,
1078 .remove = wcn36xx_remove,
1079 .driver = {
1080 .name = "wcn36xx",
1081 },
1082 .id_table = wcn36xx_platform_id_table,
1083};
1084
1085static int __init wcn36xx_init(void)
1086{
1087 platform_driver_register(&wcn36xx_driver);
1088 return 0;
1089}
1090module_init(wcn36xx_init);
1091
1092static void __exit wcn36xx_exit(void)
1093{
1094 platform_driver_unregister(&wcn36xx_driver);
1095}
1096module_exit(wcn36xx_exit);
1097
1098MODULE_LICENSE("Dual BSD/GPL");
1099MODULE_AUTHOR("Eugene Krasnikov k.eugene.e@gmail.com");
1100MODULE_FIRMWARE(WLAN_NV_FILE);
1101
