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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#include "testmode.h"
30
31unsigned int wcn36xx_dbg_mask;
32module_param_named(debug_mask, wcn36xx_dbg_mask, uint, 0644);
33MODULE_PARM_DESC(debug_mask, "Debugging mask");
34
35#define CHAN2G(_freq, _idx) { \
36 .band = NL80211_BAND_2GHZ, \
37 .center_freq = (_freq), \
38 .hw_value = (_idx), \
39 .max_power = 25, \
40}
41
42#define CHAN5G(_freq, _idx) { \
43 .band = NL80211_BAND_5GHZ, \
44 .center_freq = (_freq), \
45 .hw_value = (_idx), \
46 .max_power = 25, \
47}
48
49/* The wcn firmware expects channel values to matching
50 * their mnemonic values. So use these for .hw_value. */
51static struct ieee80211_channel wcn_2ghz_channels[] = {
52 CHAN2G(2412, 1), /* Channel 1 */
53 CHAN2G(2417, 2), /* Channel 2 */
54 CHAN2G(2422, 3), /* Channel 3 */
55 CHAN2G(2427, 4), /* Channel 4 */
56 CHAN2G(2432, 5), /* Channel 5 */
57 CHAN2G(2437, 6), /* Channel 6 */
58 CHAN2G(2442, 7), /* Channel 7 */
59 CHAN2G(2447, 8), /* Channel 8 */
60 CHAN2G(2452, 9), /* Channel 9 */
61 CHAN2G(2457, 10), /* Channel 10 */
62 CHAN2G(2462, 11), /* Channel 11 */
63 CHAN2G(2467, 12), /* Channel 12 */
64 CHAN2G(2472, 13), /* Channel 13 */
65 CHAN2G(2484, 14) /* Channel 14 */
66
67};
68
69static struct ieee80211_channel wcn_5ghz_channels[] = {
70 CHAN5G(5180, 36),
71 CHAN5G(5200, 40),
72 CHAN5G(5220, 44),
73 CHAN5G(5240, 48),
74 CHAN5G(5260, 52),
75 CHAN5G(5280, 56),
76 CHAN5G(5300, 60),
77 CHAN5G(5320, 64),
78 CHAN5G(5500, 100),
79 CHAN5G(5520, 104),
80 CHAN5G(5540, 108),
81 CHAN5G(5560, 112),
82 CHAN5G(5580, 116),
83 CHAN5G(5600, 120),
84 CHAN5G(5620, 124),
85 CHAN5G(5640, 128),
86 CHAN5G(5660, 132),
87 CHAN5G(5700, 140),
88 CHAN5G(5745, 149),
89 CHAN5G(5765, 153),
90 CHAN5G(5785, 157),
91 CHAN5G(5805, 161),
92 CHAN5G(5825, 165)
93};
94
95#define RATE(_bitrate, _hw_rate, _flags) { \
96 .bitrate = (_bitrate), \
97 .flags = (_flags), \
98 .hw_value = (_hw_rate), \
99 .hw_value_short = (_hw_rate) \
100}
101
102static struct ieee80211_rate wcn_2ghz_rates[] = {
103 RATE(10, HW_RATE_INDEX_1MBPS, 0),
104 RATE(20, HW_RATE_INDEX_2MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
105 RATE(55, HW_RATE_INDEX_5_5MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
106 RATE(110, HW_RATE_INDEX_11MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
107 RATE(60, HW_RATE_INDEX_6MBPS, 0),
108 RATE(90, HW_RATE_INDEX_9MBPS, 0),
109 RATE(120, HW_RATE_INDEX_12MBPS, 0),
110 RATE(180, HW_RATE_INDEX_18MBPS, 0),
111 RATE(240, HW_RATE_INDEX_24MBPS, 0),
112 RATE(360, HW_RATE_INDEX_36MBPS, 0),
113 RATE(480, HW_RATE_INDEX_48MBPS, 0),
114 RATE(540, HW_RATE_INDEX_54MBPS, 0)
115};
116
117static struct ieee80211_rate wcn_5ghz_rates[] = {
118 RATE(60, HW_RATE_INDEX_6MBPS, 0),
119 RATE(90, HW_RATE_INDEX_9MBPS, 0),
120 RATE(120, HW_RATE_INDEX_12MBPS, 0),
121 RATE(180, HW_RATE_INDEX_18MBPS, 0),
122 RATE(240, HW_RATE_INDEX_24MBPS, 0),
123 RATE(360, HW_RATE_INDEX_36MBPS, 0),
124 RATE(480, HW_RATE_INDEX_48MBPS, 0),
125 RATE(540, HW_RATE_INDEX_54MBPS, 0)
126};
127
128static struct ieee80211_supported_band wcn_band_2ghz = {
129 .channels = wcn_2ghz_channels,
130 .n_channels = ARRAY_SIZE(wcn_2ghz_channels),
131 .bitrates = wcn_2ghz_rates,
132 .n_bitrates = ARRAY_SIZE(wcn_2ghz_rates),
133 .ht_cap = {
134 .cap = IEEE80211_HT_CAP_GRN_FLD |
135 IEEE80211_HT_CAP_SGI_20 |
136 IEEE80211_HT_CAP_DSSSCCK40 |
137 IEEE80211_HT_CAP_LSIG_TXOP_PROT,
138 .ht_supported = true,
139 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
140 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
141 .mcs = {
142 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
143 .rx_highest = cpu_to_le16(72),
144 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
145 }
146 }
147};
148
149static struct ieee80211_supported_band wcn_band_5ghz = {
150 .channels = wcn_5ghz_channels,
151 .n_channels = ARRAY_SIZE(wcn_5ghz_channels),
152 .bitrates = wcn_5ghz_rates,
153 .n_bitrates = ARRAY_SIZE(wcn_5ghz_rates),
154 .ht_cap = {
155 .cap = IEEE80211_HT_CAP_GRN_FLD |
156 IEEE80211_HT_CAP_SGI_20 |
157 IEEE80211_HT_CAP_DSSSCCK40 |
158 IEEE80211_HT_CAP_LSIG_TXOP_PROT |
159 IEEE80211_HT_CAP_SGI_40 |
160 IEEE80211_HT_CAP_SUP_WIDTH_20_40,
161 .ht_supported = true,
162 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
163 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
164 .mcs = {
165 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
166 .rx_highest = cpu_to_le16(72),
167 .tx_params = IEEE80211_HT_MCS_TX_DEFINED,
168 }
169 }
170};
171
172#ifdef CONFIG_PM
173
174static const struct wiphy_wowlan_support wowlan_support = {
175 .flags = WIPHY_WOWLAN_ANY
176};
177
178#endif
179
180static inline u8 get_sta_index(struct ieee80211_vif *vif,
181 struct wcn36xx_sta *sta_priv)
182{
183 return NL80211_IFTYPE_STATION == vif->type ?
184 sta_priv->bss_sta_index :
185 sta_priv->sta_index;
186}
187
188static const char * const wcn36xx_caps_names[] = {
189 "MCC", /* 0 */
190 "P2P", /* 1 */
191 "DOT11AC", /* 2 */
192 "SLM_SESSIONIZATION", /* 3 */
193 "DOT11AC_OPMODE", /* 4 */
194 "SAP32STA", /* 5 */
195 "TDLS", /* 6 */
196 "P2P_GO_NOA_DECOUPLE_INIT_SCAN",/* 7 */
197 "WLANACTIVE_OFFLOAD", /* 8 */
198 "BEACON_OFFLOAD", /* 9 */
199 "SCAN_OFFLOAD", /* 10 */
200 "ROAM_OFFLOAD", /* 11 */
201 "BCN_MISS_OFFLOAD", /* 12 */
202 "STA_POWERSAVE", /* 13 */
203 "STA_ADVANCED_PWRSAVE", /* 14 */
204 "AP_UAPSD", /* 15 */
205 "AP_DFS", /* 16 */
206 "BLOCKACK", /* 17 */
207 "PHY_ERR", /* 18 */
208 "BCN_FILTER", /* 19 */
209 "RTT", /* 20 */
210 "RATECTRL", /* 21 */
211 "WOW", /* 22 */
212 "WLAN_ROAM_SCAN_OFFLOAD", /* 23 */
213 "SPECULATIVE_PS_POLL", /* 24 */
214 "SCAN_SCH", /* 25 */
215 "IBSS_HEARTBEAT_OFFLOAD", /* 26 */
216 "WLAN_SCAN_OFFLOAD", /* 27 */
217 "WLAN_PERIODIC_TX_PTRN", /* 28 */
218 "ADVANCE_TDLS", /* 29 */
219 "BATCH_SCAN", /* 30 */
220 "FW_IN_TX_PATH", /* 31 */
221 "EXTENDED_NSOFFLOAD_SLOT", /* 32 */
222 "CH_SWITCH_V1", /* 33 */
223 "HT40_OBSS_SCAN", /* 34 */
224 "UPDATE_CHANNEL_LIST", /* 35 */
225 "WLAN_MCADDR_FLT", /* 36 */
226 "WLAN_CH144", /* 37 */
227 "NAN", /* 38 */
228 "TDLS_SCAN_COEXISTENCE", /* 39 */
229 "LINK_LAYER_STATS_MEAS", /* 40 */
230 "MU_MIMO", /* 41 */
231 "EXTENDED_SCAN", /* 42 */
232 "DYNAMIC_WMM_PS", /* 43 */
233 "MAC_SPOOFED_SCAN", /* 44 */
234 "BMU_ERROR_GENERIC_RECOVERY", /* 45 */
235 "DISA", /* 46 */
236 "FW_STATS", /* 47 */
237 "WPS_PRBRSP_TMPL", /* 48 */
238 "BCN_IE_FLT_DELTA", /* 49 */
239 "TDLS_OFF_CHANNEL", /* 51 */
240 "RTT3", /* 52 */
241 "MGMT_FRAME_LOGGING", /* 53 */
242 "ENHANCED_TXBD_COMPLETION", /* 54 */
243 "LOGGING_ENHANCEMENT", /* 55 */
244 "EXT_SCAN_ENHANCED", /* 56 */
245 "MEMORY_DUMP_SUPPORTED", /* 57 */
246 "PER_PKT_STATS_SUPPORTED", /* 58 */
247 "EXT_LL_STAT", /* 60 */
248 "WIFI_CONFIG", /* 61 */
249 "ANTENNA_DIVERSITY_SELECTION", /* 62 */
250};
251
252static const char *wcn36xx_get_cap_name(enum place_holder_in_cap_bitmap x)
253{
254 if (x >= ARRAY_SIZE(wcn36xx_caps_names))
255 return "UNKNOWN";
256 return wcn36xx_caps_names[x];
257}
258
259static void wcn36xx_feat_caps_info(struct wcn36xx *wcn)
260{
261 int i;
262
263 for (i = 0; i < MAX_FEATURE_SUPPORTED; i++) {
264 if (get_feat_caps(wcn->fw_feat_caps, i))
265 wcn36xx_dbg(WCN36XX_DBG_MAC, "FW Cap %s\n", wcn36xx_get_cap_name(i));
266 }
267}
268
269static int wcn36xx_start(struct ieee80211_hw *hw)
270{
271 struct wcn36xx *wcn = hw->priv;
272 int ret;
273
274 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac start\n");
275
276 /* SMD initialization */
277 ret = wcn36xx_smd_open(wcn);
278 if (ret) {
279 wcn36xx_err("Failed to open smd channel: %d\n", ret);
280 goto out_err;
281 }
282
283 /* Allocate memory pools for Mgmt BD headers and Data BD headers */
284 ret = wcn36xx_dxe_allocate_mem_pools(wcn);
285 if (ret) {
286 wcn36xx_err("Failed to alloc DXE mempool: %d\n", ret);
287 goto out_smd_close;
288 }
289
290 ret = wcn36xx_dxe_alloc_ctl_blks(wcn);
291 if (ret) {
292 wcn36xx_err("Failed to alloc DXE ctl blocks: %d\n", ret);
293 goto out_free_dxe_pool;
294 }
295
296 wcn->hal_buf = kmalloc(WCN36XX_HAL_BUF_SIZE, GFP_KERNEL);
297 if (!wcn->hal_buf) {
298 wcn36xx_err("Failed to allocate smd buf\n");
299 ret = -ENOMEM;
300 goto out_free_dxe_ctl;
301 }
302
303 ret = wcn36xx_smd_load_nv(wcn);
304 if (ret) {
305 wcn36xx_err("Failed to push NV to chip\n");
306 goto out_free_smd_buf;
307 }
308
309 ret = wcn36xx_smd_start(wcn);
310 if (ret) {
311 wcn36xx_err("Failed to start chip\n");
312 goto out_free_smd_buf;
313 }
314
315 if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
316 ret = wcn36xx_smd_feature_caps_exchange(wcn);
317 if (ret)
318 wcn36xx_warn("Exchange feature caps failed\n");
319 else
320 wcn36xx_feat_caps_info(wcn);
321 }
322
323 /* DMA channel initialization */
324 ret = wcn36xx_dxe_init(wcn);
325 if (ret) {
326 wcn36xx_err("DXE init failed\n");
327 goto out_smd_stop;
328 }
329
330 wcn36xx_debugfs_init(wcn);
331
332 INIT_LIST_HEAD(&wcn->vif_list);
333 spin_lock_init(&wcn->dxe_lock);
334
335 return 0;
336
337out_smd_stop:
338 wcn36xx_smd_stop(wcn);
339out_free_smd_buf:
340 kfree(wcn->hal_buf);
341out_free_dxe_ctl:
342 wcn36xx_dxe_free_ctl_blks(wcn);
343out_free_dxe_pool:
344 wcn36xx_dxe_free_mem_pools(wcn);
345out_smd_close:
346 wcn36xx_smd_close(wcn);
347out_err:
348 return ret;
349}
350
351static void wcn36xx_stop(struct ieee80211_hw *hw)
352{
353 struct wcn36xx *wcn = hw->priv;
354
355 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac stop\n");
356
357 cancel_work_sync(&wcn->scan_work);
358
359 mutex_lock(&wcn->scan_lock);
360 if (wcn->scan_req) {
361 struct cfg80211_scan_info scan_info = {
362 .aborted = true,
363 };
364
365 ieee80211_scan_completed(wcn->hw, &scan_info);
366 }
367 wcn->scan_req = NULL;
368 mutex_unlock(&wcn->scan_lock);
369
370 wcn36xx_debugfs_exit(wcn);
371 wcn36xx_smd_stop(wcn);
372 wcn36xx_dxe_deinit(wcn);
373 wcn36xx_smd_close(wcn);
374
375 wcn36xx_dxe_free_mem_pools(wcn);
376 wcn36xx_dxe_free_ctl_blks(wcn);
377
378 kfree(wcn->hal_buf);
379}
380
381static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
382{
383 struct wcn36xx *wcn = hw->priv;
384 struct ieee80211_vif *vif = NULL;
385 struct wcn36xx_vif *tmp;
386
387 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed);
388
389 mutex_lock(&wcn->conf_mutex);
390
391 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
392 int ch = WCN36XX_HW_CHANNEL(wcn);
393 wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d\n",
394 ch);
395 list_for_each_entry(tmp, &wcn->vif_list, list) {
396 vif = wcn36xx_priv_to_vif(tmp);
397 wcn36xx_smd_switch_channel(wcn, vif, ch);
398 }
399 }
400
401 if (changed & IEEE80211_CONF_CHANGE_PS) {
402 list_for_each_entry(tmp, &wcn->vif_list, list) {
403 vif = wcn36xx_priv_to_vif(tmp);
404 if (hw->conf.flags & IEEE80211_CONF_PS) {
405 if (vif->bss_conf.ps) /* ps allowed ? */
406 wcn36xx_pmc_enter_bmps_state(wcn, vif);
407 } else {
408 wcn36xx_pmc_exit_bmps_state(wcn, vif);
409 }
410 }
411 }
412
413 mutex_unlock(&wcn->conf_mutex);
414
415 return 0;
416}
417
418static void wcn36xx_configure_filter(struct ieee80211_hw *hw,
419 unsigned int changed,
420 unsigned int *total, u64 multicast)
421{
422 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp;
423 struct wcn36xx *wcn = hw->priv;
424 struct wcn36xx_vif *tmp;
425 struct ieee80211_vif *vif = NULL;
426
427 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac configure filter\n");
428
429 mutex_lock(&wcn->conf_mutex);
430
431 *total &= FIF_ALLMULTI;
432
433 fp = (void *)(unsigned long)multicast;
434 list_for_each_entry(tmp, &wcn->vif_list, list) {
435 vif = wcn36xx_priv_to_vif(tmp);
436
437 /* FW handles MC filtering only when connected as STA */
438 if (*total & FIF_ALLMULTI)
439 wcn36xx_smd_set_mc_list(wcn, vif, NULL);
440 else if (NL80211_IFTYPE_STATION == vif->type && tmp->sta_assoc)
441 wcn36xx_smd_set_mc_list(wcn, vif, fp);
442 }
443
444 mutex_unlock(&wcn->conf_mutex);
445 kfree(fp);
446}
447
448static u64 wcn36xx_prepare_multicast(struct ieee80211_hw *hw,
449 struct netdev_hw_addr_list *mc_list)
450{
451 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp;
452 struct netdev_hw_addr *ha;
453
454 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac prepare multicast list\n");
455 fp = kzalloc(sizeof(*fp), GFP_ATOMIC);
456 if (!fp) {
457 wcn36xx_err("Out of memory setting filters.\n");
458 return 0;
459 }
460
461 fp->mc_addr_count = 0;
462 /* update multicast filtering parameters */
463 if (netdev_hw_addr_list_count(mc_list) <=
464 WCN36XX_HAL_MAX_NUM_MULTICAST_ADDRESS) {
465 netdev_hw_addr_list_for_each(ha, mc_list) {
466 memcpy(fp->mc_addr[fp->mc_addr_count],
467 ha->addr, ETH_ALEN);
468 fp->mc_addr_count++;
469 }
470 }
471
472 return (u64)(unsigned long)fp;
473}
474
475static void wcn36xx_tx(struct ieee80211_hw *hw,
476 struct ieee80211_tx_control *control,
477 struct sk_buff *skb)
478{
479 struct wcn36xx *wcn = hw->priv;
480 struct wcn36xx_sta *sta_priv = NULL;
481
482 if (control->sta)
483 sta_priv = wcn36xx_sta_to_priv(control->sta);
484
485 if (wcn36xx_start_tx(wcn, sta_priv, skb))
486 ieee80211_free_txskb(wcn->hw, skb);
487}
488
489static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
490 struct ieee80211_vif *vif,
491 struct ieee80211_sta *sta,
492 struct ieee80211_key_conf *key_conf)
493{
494 struct wcn36xx *wcn = hw->priv;
495 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
496 struct wcn36xx_sta *sta_priv = sta ? wcn36xx_sta_to_priv(sta) : NULL;
497 int ret = 0;
498 u8 key[WLAN_MAX_KEY_LEN];
499
500 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 set key\n");
501 wcn36xx_dbg(WCN36XX_DBG_MAC, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x\n",
502 cmd, key_conf->cipher, key_conf->keyidx,
503 key_conf->keylen, key_conf->flags);
504 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "KEY: ",
505 key_conf->key,
506 key_conf->keylen);
507
508 mutex_lock(&wcn->conf_mutex);
509
510 switch (key_conf->cipher) {
511 case WLAN_CIPHER_SUITE_WEP40:
512 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
513 break;
514 case WLAN_CIPHER_SUITE_WEP104:
515 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP104;
516 break;
517 case WLAN_CIPHER_SUITE_CCMP:
518 vif_priv->encrypt_type = WCN36XX_HAL_ED_CCMP;
519 break;
520 case WLAN_CIPHER_SUITE_TKIP:
521 vif_priv->encrypt_type = WCN36XX_HAL_ED_TKIP;
522 break;
523 default:
524 wcn36xx_err("Unsupported key type 0x%x\n",
525 key_conf->cipher);
526 ret = -EOPNOTSUPP;
527 goto out;
528 }
529
530 switch (cmd) {
531 case SET_KEY:
532 if (WCN36XX_HAL_ED_TKIP == vif_priv->encrypt_type) {
533 /*
534 * Supplicant is sending key in the wrong order:
535 * Temporal Key (16 b) - TX MIC (8 b) - RX MIC (8 b)
536 * but HW expects it to be in the order as described in
537 * IEEE 802.11 spec (see chapter 11.7) like this:
538 * Temporal Key (16 b) - RX MIC (8 b) - TX MIC (8 b)
539 */
540 memcpy(key, key_conf->key, 16);
541 memcpy(key + 16, key_conf->key + 24, 8);
542 memcpy(key + 24, key_conf->key + 16, 8);
543 } else {
544 memcpy(key, key_conf->key, key_conf->keylen);
545 }
546
547 if (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags) {
548 sta_priv->is_data_encrypted = true;
549 /* Reconfigure bss with encrypt_type */
550 if (NL80211_IFTYPE_STATION == vif->type)
551 wcn36xx_smd_config_bss(wcn,
552 vif,
553 sta,
554 sta->addr,
555 true);
556
557 wcn36xx_smd_set_stakey(wcn,
558 vif_priv->encrypt_type,
559 key_conf->keyidx,
560 key_conf->keylen,
561 key,
562 get_sta_index(vif, sta_priv));
563 } else {
564 wcn36xx_smd_set_bsskey(wcn,
565 vif_priv->encrypt_type,
566 vif_priv->bss_index,
567 key_conf->keyidx,
568 key_conf->keylen,
569 key);
570
571 if ((WLAN_CIPHER_SUITE_WEP40 == key_conf->cipher) ||
572 (WLAN_CIPHER_SUITE_WEP104 == key_conf->cipher)) {
573 list_for_each_entry(sta_priv,
574 &vif_priv->sta_list, list) {
575 sta_priv->is_data_encrypted = true;
576 wcn36xx_smd_set_stakey(wcn,
577 vif_priv->encrypt_type,
578 key_conf->keyidx,
579 key_conf->keylen,
580 key,
581 get_sta_index(vif, sta_priv));
582 }
583 }
584 }
585 break;
586 case DISABLE_KEY:
587 if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) {
588 if (vif_priv->bss_index != WCN36XX_HAL_BSS_INVALID_IDX)
589 wcn36xx_smd_remove_bsskey(wcn,
590 vif_priv->encrypt_type,
591 vif_priv->bss_index,
592 key_conf->keyidx);
593
594 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE;
595 } else {
596 sta_priv->is_data_encrypted = false;
597 /* do not remove key if disassociated */
598 if (sta_priv->aid)
599 wcn36xx_smd_remove_stakey(wcn,
600 vif_priv->encrypt_type,
601 key_conf->keyidx,
602 get_sta_index(vif, sta_priv));
603 }
604 break;
605 default:
606 wcn36xx_err("Unsupported key cmd 0x%x\n", cmd);
607 ret = -EOPNOTSUPP;
608 goto out;
609 }
610
611out:
612 mutex_unlock(&wcn->conf_mutex);
613
614 return ret;
615}
616
617static void wcn36xx_hw_scan_worker(struct work_struct *work)
618{
619 struct wcn36xx *wcn = container_of(work, struct wcn36xx, scan_work);
620 struct cfg80211_scan_request *req = wcn->scan_req;
621 u8 channels[WCN36XX_HAL_PNO_MAX_NETW_CHANNELS_EX];
622 struct cfg80211_scan_info scan_info = {};
623 bool aborted = false;
624 int i;
625
626 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 scan %d channels worker\n", req->n_channels);
627
628 for (i = 0; i < req->n_channels; i++)
629 channels[i] = req->channels[i]->hw_value;
630
631 wcn36xx_smd_update_scan_params(wcn, channels, req->n_channels);
632
633 wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN);
634 for (i = 0; i < req->n_channels; i++) {
635 mutex_lock(&wcn->scan_lock);
636 aborted = wcn->scan_aborted;
637 mutex_unlock(&wcn->scan_lock);
638
639 if (aborted)
640 break;
641
642 wcn->scan_freq = req->channels[i]->center_freq;
643 wcn->scan_band = req->channels[i]->band;
644
645 wcn36xx_smd_start_scan(wcn, req->channels[i]->hw_value);
646 msleep(30);
647 wcn36xx_smd_end_scan(wcn, req->channels[i]->hw_value);
648
649 wcn->scan_freq = 0;
650 }
651 wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN);
652
653 scan_info.aborted = aborted;
654 ieee80211_scan_completed(wcn->hw, &scan_info);
655
656 mutex_lock(&wcn->scan_lock);
657 wcn->scan_req = NULL;
658 mutex_unlock(&wcn->scan_lock);
659}
660
661static int wcn36xx_hw_scan(struct ieee80211_hw *hw,
662 struct ieee80211_vif *vif,
663 struct ieee80211_scan_request *hw_req)
664{
665 struct wcn36xx *wcn = hw->priv;
666 mutex_lock(&wcn->scan_lock);
667 if (wcn->scan_req) {
668 mutex_unlock(&wcn->scan_lock);
669 return -EBUSY;
670 }
671
672 wcn->scan_aborted = false;
673 wcn->scan_req = &hw_req->req;
674
675 mutex_unlock(&wcn->scan_lock);
676
677 if (!get_feat_caps(wcn->fw_feat_caps, SCAN_OFFLOAD)) {
678 /* legacy manual/sw scan */
679 schedule_work(&wcn->scan_work);
680 return 0;
681 }
682
683 return wcn36xx_smd_start_hw_scan(wcn, vif, &hw_req->req);
684}
685
686static void wcn36xx_cancel_hw_scan(struct ieee80211_hw *hw,
687 struct ieee80211_vif *vif)
688{
689 struct wcn36xx *wcn = hw->priv;
690
691 mutex_lock(&wcn->scan_lock);
692 wcn->scan_aborted = true;
693 mutex_unlock(&wcn->scan_lock);
694
695 if (get_feat_caps(wcn->fw_feat_caps, SCAN_OFFLOAD)) {
696 /* ieee80211_scan_completed will be called on FW scan
697 * indication */
698 wcn36xx_smd_stop_hw_scan(wcn);
699 } else {
700 struct cfg80211_scan_info scan_info = {
701 .aborted = true,
702 };
703
704 cancel_work_sync(&wcn->scan_work);
705 ieee80211_scan_completed(wcn->hw, &scan_info);
706 }
707}
708
709static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta,
710 enum nl80211_band band)
711{
712 int i, size;
713 u16 *rates_table;
714 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
715 u32 rates = sta->supp_rates[band];
716
717 memset(&sta_priv->supported_rates, 0,
718 sizeof(sta_priv->supported_rates));
719 sta_priv->supported_rates.op_rate_mode = STA_11n;
720
721 size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates);
722 rates_table = sta_priv->supported_rates.dsss_rates;
723 if (band == NL80211_BAND_2GHZ) {
724 for (i = 0; i < size; i++) {
725 if (rates & 0x01) {
726 rates_table[i] = wcn_2ghz_rates[i].hw_value;
727 rates = rates >> 1;
728 }
729 }
730 }
731
732 size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates);
733 rates_table = sta_priv->supported_rates.ofdm_rates;
734 for (i = 0; i < size; i++) {
735 if (rates & 0x01) {
736 rates_table[i] = wcn_5ghz_rates[i].hw_value;
737 rates = rates >> 1;
738 }
739 }
740
741 if (sta->ht_cap.ht_supported) {
742 BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) >
743 sizeof(sta_priv->supported_rates.supported_mcs_set));
744 memcpy(sta_priv->supported_rates.supported_mcs_set,
745 sta->ht_cap.mcs.rx_mask,
746 sizeof(sta->ht_cap.mcs.rx_mask));
747 }
748}
749void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates)
750{
751 u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = {
752 HW_RATE_INDEX_6MBPS,
753 HW_RATE_INDEX_9MBPS,
754 HW_RATE_INDEX_12MBPS,
755 HW_RATE_INDEX_18MBPS,
756 HW_RATE_INDEX_24MBPS,
757 HW_RATE_INDEX_36MBPS,
758 HW_RATE_INDEX_48MBPS,
759 HW_RATE_INDEX_54MBPS
760 };
761 u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = {
762 HW_RATE_INDEX_1MBPS,
763 HW_RATE_INDEX_2MBPS,
764 HW_RATE_INDEX_5_5MBPS,
765 HW_RATE_INDEX_11MBPS
766 };
767
768 rates->op_rate_mode = STA_11n;
769 memcpy(rates->dsss_rates, dsss_rates,
770 sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES);
771 memcpy(rates->ofdm_rates, ofdm_rates,
772 sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES);
773 rates->supported_mcs_set[0] = 0xFF;
774}
775static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
776 struct ieee80211_vif *vif,
777 struct ieee80211_bss_conf *bss_conf,
778 u32 changed)
779{
780 struct wcn36xx *wcn = hw->priv;
781 struct sk_buff *skb = NULL;
782 u16 tim_off, tim_len;
783 enum wcn36xx_hal_link_state link_state;
784 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
785
786 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n",
787 vif, changed);
788
789 mutex_lock(&wcn->conf_mutex);
790
791 if (changed & BSS_CHANGED_BEACON_INFO) {
792 wcn36xx_dbg(WCN36XX_DBG_MAC,
793 "mac bss changed dtim period %d\n",
794 bss_conf->dtim_period);
795
796 vif_priv->dtim_period = bss_conf->dtim_period;
797 }
798
799 if (changed & BSS_CHANGED_BSSID) {
800 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n",
801 bss_conf->bssid);
802
803 if (!is_zero_ether_addr(bss_conf->bssid)) {
804 vif_priv->is_joining = true;
805 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
806 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid, vif->addr,
807 WCN36XX_HAL_LINK_PREASSOC_STATE);
808 wcn36xx_smd_join(wcn, bss_conf->bssid,
809 vif->addr, WCN36XX_HW_CHANNEL(wcn));
810 wcn36xx_smd_config_bss(wcn, vif, NULL,
811 bss_conf->bssid, false);
812 } else {
813 vif_priv->is_joining = false;
814 wcn36xx_smd_delete_bss(wcn, vif);
815 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid, vif->addr,
816 WCN36XX_HAL_LINK_IDLE_STATE);
817 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE;
818 }
819 }
820
821 if (changed & BSS_CHANGED_SSID) {
822 wcn36xx_dbg(WCN36XX_DBG_MAC,
823 "mac bss changed ssid\n");
824 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ",
825 bss_conf->ssid, bss_conf->ssid_len);
826
827 vif_priv->ssid.length = bss_conf->ssid_len;
828 memcpy(&vif_priv->ssid.ssid,
829 bss_conf->ssid,
830 bss_conf->ssid_len);
831 }
832
833 if (changed & BSS_CHANGED_ASSOC) {
834 vif_priv->is_joining = false;
835 if (bss_conf->assoc) {
836 struct ieee80211_sta *sta;
837 struct wcn36xx_sta *sta_priv;
838
839 wcn36xx_dbg(WCN36XX_DBG_MAC,
840 "mac assoc bss %pM vif %pM AID=%d\n",
841 bss_conf->bssid,
842 vif->addr,
843 bss_conf->aid);
844
845 vif_priv->sta_assoc = true;
846
847 /*
848 * Holding conf_mutex ensures mutal exclusion with
849 * wcn36xx_sta_remove() and as such ensures that sta
850 * won't be freed while we're operating on it. As such
851 * we do not need to hold the rcu_read_lock().
852 */
853 sta = ieee80211_find_sta(vif, bss_conf->bssid);
854 if (!sta) {
855 wcn36xx_err("sta %pM is not found\n",
856 bss_conf->bssid);
857 goto out;
858 }
859 sta_priv = wcn36xx_sta_to_priv(sta);
860
861 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
862
863 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid,
864 vif->addr,
865 WCN36XX_HAL_LINK_POSTASSOC_STATE);
866 wcn36xx_smd_config_bss(wcn, vif, sta,
867 bss_conf->bssid,
868 true);
869 sta_priv->aid = bss_conf->aid;
870 /*
871 * config_sta must be called from because this is the
872 * place where AID is available.
873 */
874 wcn36xx_smd_config_sta(wcn, vif, sta);
875 } else {
876 wcn36xx_dbg(WCN36XX_DBG_MAC,
877 "disassociated bss %pM vif %pM AID=%d\n",
878 bss_conf->bssid,
879 vif->addr,
880 bss_conf->aid);
881 vif_priv->sta_assoc = false;
882 wcn36xx_smd_set_link_st(wcn,
883 bss_conf->bssid,
884 vif->addr,
885 WCN36XX_HAL_LINK_IDLE_STATE);
886 }
887 }
888
889 if (changed & BSS_CHANGED_AP_PROBE_RESP) {
890 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n");
891 skb = ieee80211_proberesp_get(hw, vif);
892 if (!skb) {
893 wcn36xx_err("failed to alloc probereq skb\n");
894 goto out;
895 }
896
897 wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb);
898 dev_kfree_skb(skb);
899 }
900
901 if (changed & BSS_CHANGED_BEACON_ENABLED ||
902 changed & BSS_CHANGED_BEACON) {
903 wcn36xx_dbg(WCN36XX_DBG_MAC,
904 "mac bss changed beacon enabled %d\n",
905 bss_conf->enable_beacon);
906
907 if (bss_conf->enable_beacon) {
908 vif_priv->dtim_period = bss_conf->dtim_period;
909 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
910 wcn36xx_smd_config_bss(wcn, vif, NULL,
911 vif->addr, false);
912 skb = ieee80211_beacon_get_tim(hw, vif, &tim_off,
913 &tim_len);
914 if (!skb) {
915 wcn36xx_err("failed to alloc beacon skb\n");
916 goto out;
917 }
918 wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0);
919 dev_kfree_skb(skb);
920
921 if (vif->type == NL80211_IFTYPE_ADHOC ||
922 vif->type == NL80211_IFTYPE_MESH_POINT)
923 link_state = WCN36XX_HAL_LINK_IBSS_STATE;
924 else
925 link_state = WCN36XX_HAL_LINK_AP_STATE;
926
927 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
928 link_state);
929 } else {
930 wcn36xx_smd_delete_bss(wcn, vif);
931 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
932 WCN36XX_HAL_LINK_IDLE_STATE);
933 }
934 }
935out:
936
937 mutex_unlock(&wcn->conf_mutex);
938}
939
940/* this is required when using IEEE80211_HW_HAS_RATE_CONTROL */
941static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
942{
943 struct wcn36xx *wcn = hw->priv;
944 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value);
945
946 mutex_lock(&wcn->conf_mutex);
947 wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value);
948 mutex_unlock(&wcn->conf_mutex);
949
950 return 0;
951}
952
953static void wcn36xx_remove_interface(struct ieee80211_hw *hw,
954 struct ieee80211_vif *vif)
955{
956 struct wcn36xx *wcn = hw->priv;
957 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
958 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif);
959
960 mutex_lock(&wcn->conf_mutex);
961
962 list_del(&vif_priv->list);
963 wcn36xx_smd_delete_sta_self(wcn, vif->addr);
964
965 mutex_unlock(&wcn->conf_mutex);
966}
967
968static int wcn36xx_add_interface(struct ieee80211_hw *hw,
969 struct ieee80211_vif *vif)
970{
971 struct wcn36xx *wcn = hw->priv;
972 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
973
974 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n",
975 vif, vif->type);
976
977 if (!(NL80211_IFTYPE_STATION == vif->type ||
978 NL80211_IFTYPE_AP == vif->type ||
979 NL80211_IFTYPE_ADHOC == vif->type ||
980 NL80211_IFTYPE_MESH_POINT == vif->type)) {
981 wcn36xx_warn("Unsupported interface type requested: %d\n",
982 vif->type);
983 return -EOPNOTSUPP;
984 }
985
986 mutex_lock(&wcn->conf_mutex);
987
988 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX;
989 INIT_LIST_HEAD(&vif_priv->sta_list);
990 list_add(&vif_priv->list, &wcn->vif_list);
991 wcn36xx_smd_add_sta_self(wcn, vif);
992
993 mutex_unlock(&wcn->conf_mutex);
994
995 return 0;
996}
997
998static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
999 struct ieee80211_sta *sta)
1000{
1001 struct wcn36xx *wcn = hw->priv;
1002 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
1003 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
1004 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n",
1005 vif, sta->addr);
1006
1007 mutex_lock(&wcn->conf_mutex);
1008
1009 spin_lock_init(&sta_priv->ampdu_lock);
1010 sta_priv->vif = vif_priv;
1011 list_add(&sta_priv->list, &vif_priv->sta_list);
1012
1013 /*
1014 * For STA mode HW will be configured on BSS_CHANGED_ASSOC because
1015 * at this stage AID is not available yet.
1016 */
1017 if (NL80211_IFTYPE_STATION != vif->type) {
1018 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
1019 sta_priv->aid = sta->aid;
1020 wcn36xx_smd_config_sta(wcn, vif, sta);
1021 }
1022
1023 mutex_unlock(&wcn->conf_mutex);
1024
1025 return 0;
1026}
1027
1028static int wcn36xx_sta_remove(struct ieee80211_hw *hw,
1029 struct ieee80211_vif *vif,
1030 struct ieee80211_sta *sta)
1031{
1032 struct wcn36xx *wcn = hw->priv;
1033 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta);
1034
1035 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n",
1036 vif, sta->addr, sta_priv->sta_index);
1037
1038 mutex_lock(&wcn->conf_mutex);
1039
1040 list_del(&sta_priv->list);
1041 wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index);
1042 sta_priv->vif = NULL;
1043
1044 mutex_unlock(&wcn->conf_mutex);
1045
1046 return 0;
1047}
1048
1049#ifdef CONFIG_PM
1050
1051static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow)
1052{
1053 struct wcn36xx *wcn = hw->priv;
1054
1055 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n");
1056
1057 flush_workqueue(wcn->hal_ind_wq);
1058 wcn36xx_smd_set_power_params(wcn, true);
1059 return 0;
1060}
1061
1062static int wcn36xx_resume(struct ieee80211_hw *hw)
1063{
1064 struct wcn36xx *wcn = hw->priv;
1065
1066 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n");
1067
1068 flush_workqueue(wcn->hal_ind_wq);
1069 wcn36xx_smd_set_power_params(wcn, false);
1070 return 0;
1071}
1072
1073#endif
1074
1075static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
1076 struct ieee80211_vif *vif,
1077 struct ieee80211_ampdu_params *params)
1078{
1079 struct wcn36xx *wcn = hw->priv;
1080 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(params->sta);
1081 struct ieee80211_sta *sta = params->sta;
1082 enum ieee80211_ampdu_mlme_action action = params->action;
1083 u16 tid = params->tid;
1084 u16 *ssn = ¶ms->ssn;
1085 int ret = 0;
1086
1087 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n",
1088 action, tid);
1089
1090 mutex_lock(&wcn->conf_mutex);
1091
1092 switch (action) {
1093 case IEEE80211_AMPDU_RX_START:
1094 sta_priv->tid = tid;
1095 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0,
1096 get_sta_index(vif, sta_priv));
1097 wcn36xx_smd_add_ba(wcn);
1098 wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv));
1099 break;
1100 case IEEE80211_AMPDU_RX_STOP:
1101 wcn36xx_smd_del_ba(wcn, tid, get_sta_index(vif, sta_priv));
1102 break;
1103 case IEEE80211_AMPDU_TX_START:
1104 spin_lock_bh(&sta_priv->ampdu_lock);
1105 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_START;
1106 spin_unlock_bh(&sta_priv->ampdu_lock);
1107
1108 ret = IEEE80211_AMPDU_TX_START_IMMEDIATE;
1109 break;
1110 case IEEE80211_AMPDU_TX_OPERATIONAL:
1111 spin_lock_bh(&sta_priv->ampdu_lock);
1112 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_OPERATIONAL;
1113 spin_unlock_bh(&sta_priv->ampdu_lock);
1114
1115 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 1,
1116 get_sta_index(vif, sta_priv));
1117 break;
1118 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1119 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1120 case IEEE80211_AMPDU_TX_STOP_CONT:
1121 spin_lock_bh(&sta_priv->ampdu_lock);
1122 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_NONE;
1123 spin_unlock_bh(&sta_priv->ampdu_lock);
1124
1125 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
1126 break;
1127 default:
1128 wcn36xx_err("Unknown AMPDU action\n");
1129 }
1130
1131 mutex_unlock(&wcn->conf_mutex);
1132
1133 return ret;
1134}
1135
1136static const struct ieee80211_ops wcn36xx_ops = {
1137 .start = wcn36xx_start,
1138 .stop = wcn36xx_stop,
1139 .add_interface = wcn36xx_add_interface,
1140 .remove_interface = wcn36xx_remove_interface,
1141#ifdef CONFIG_PM
1142 .suspend = wcn36xx_suspend,
1143 .resume = wcn36xx_resume,
1144#endif
1145 .config = wcn36xx_config,
1146 .prepare_multicast = wcn36xx_prepare_multicast,
1147 .configure_filter = wcn36xx_configure_filter,
1148 .tx = wcn36xx_tx,
1149 .set_key = wcn36xx_set_key,
1150 .hw_scan = wcn36xx_hw_scan,
1151 .cancel_hw_scan = wcn36xx_cancel_hw_scan,
1152 .bss_info_changed = wcn36xx_bss_info_changed,
1153 .set_rts_threshold = wcn36xx_set_rts_threshold,
1154 .sta_add = wcn36xx_sta_add,
1155 .sta_remove = wcn36xx_sta_remove,
1156 .ampdu_action = wcn36xx_ampdu_action,
1157
1158 CFG80211_TESTMODE_CMD(wcn36xx_tm_cmd)
1159};
1160
1161static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
1162{
1163 static const u32 cipher_suites[] = {
1164 WLAN_CIPHER_SUITE_WEP40,
1165 WLAN_CIPHER_SUITE_WEP104,
1166 WLAN_CIPHER_SUITE_TKIP,
1167 WLAN_CIPHER_SUITE_CCMP,
1168 };
1169
1170 ieee80211_hw_set(wcn->hw, TIMING_BEACON_ONLY);
1171 ieee80211_hw_set(wcn->hw, AMPDU_AGGREGATION);
1172 ieee80211_hw_set(wcn->hw, SUPPORTS_PS);
1173 ieee80211_hw_set(wcn->hw, SIGNAL_DBM);
1174 ieee80211_hw_set(wcn->hw, HAS_RATE_CONTROL);
1175 ieee80211_hw_set(wcn->hw, SINGLE_SCAN_ON_ALL_BANDS);
1176
1177 wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
1178 BIT(NL80211_IFTYPE_AP) |
1179 BIT(NL80211_IFTYPE_ADHOC) |
1180 BIT(NL80211_IFTYPE_MESH_POINT);
1181
1182 wcn->hw->wiphy->bands[NL80211_BAND_2GHZ] = &wcn_band_2ghz;
1183 if (wcn->rf_id != RF_IRIS_WCN3620)
1184 wcn->hw->wiphy->bands[NL80211_BAND_5GHZ] = &wcn_band_5ghz;
1185
1186 wcn->hw->wiphy->max_scan_ssids = WCN36XX_MAX_SCAN_SSIDS;
1187 wcn->hw->wiphy->max_scan_ie_len = WCN36XX_MAX_SCAN_IE_LEN;
1188
1189 wcn->hw->wiphy->cipher_suites = cipher_suites;
1190 wcn->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
1191
1192#ifdef CONFIG_PM
1193 wcn->hw->wiphy->wowlan = &wowlan_support;
1194#endif
1195
1196 wcn->hw->max_listen_interval = 200;
1197
1198 wcn->hw->queues = 4;
1199
1200 SET_IEEE80211_DEV(wcn->hw, wcn->dev);
1201
1202 wcn->hw->sta_data_size = sizeof(struct wcn36xx_sta);
1203 wcn->hw->vif_data_size = sizeof(struct wcn36xx_vif);
1204
1205 wiphy_ext_feature_set(wcn->hw->wiphy,
1206 NL80211_EXT_FEATURE_CQM_RSSI_LIST);
1207
1208 return 0;
1209}
1210
1211static int wcn36xx_platform_get_resources(struct wcn36xx *wcn,
1212 struct platform_device *pdev)
1213{
1214 struct device_node *mmio_node;
1215 struct device_node *iris_node;
1216 struct resource *res;
1217 int index;
1218 int ret;
1219
1220 /* Set TX IRQ */
1221 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "tx");
1222 if (!res) {
1223 wcn36xx_err("failed to get tx_irq\n");
1224 return -ENOENT;
1225 }
1226 wcn->tx_irq = res->start;
1227
1228 /* Set RX IRQ */
1229 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "rx");
1230 if (!res) {
1231 wcn36xx_err("failed to get rx_irq\n");
1232 return -ENOENT;
1233 }
1234 wcn->rx_irq = res->start;
1235
1236 /* Acquire SMSM tx enable handle */
1237 wcn->tx_enable_state = qcom_smem_state_get(&pdev->dev,
1238 "tx-enable", &wcn->tx_enable_state_bit);
1239 if (IS_ERR(wcn->tx_enable_state)) {
1240 wcn36xx_err("failed to get tx-enable state\n");
1241 return PTR_ERR(wcn->tx_enable_state);
1242 }
1243
1244 /* Acquire SMSM tx rings empty handle */
1245 wcn->tx_rings_empty_state = qcom_smem_state_get(&pdev->dev,
1246 "tx-rings-empty", &wcn->tx_rings_empty_state_bit);
1247 if (IS_ERR(wcn->tx_rings_empty_state)) {
1248 wcn36xx_err("failed to get tx-rings-empty state\n");
1249 return PTR_ERR(wcn->tx_rings_empty_state);
1250 }
1251
1252 mmio_node = of_parse_phandle(pdev->dev.parent->of_node, "qcom,mmio", 0);
1253 if (!mmio_node) {
1254 wcn36xx_err("failed to acquire qcom,mmio reference\n");
1255 return -EINVAL;
1256 }
1257
1258 wcn->is_pronto = !!of_device_is_compatible(mmio_node, "qcom,pronto");
1259
1260 /* Map the CCU memory */
1261 index = of_property_match_string(mmio_node, "reg-names", "ccu");
1262 wcn->ccu_base = of_iomap(mmio_node, index);
1263 if (!wcn->ccu_base) {
1264 wcn36xx_err("failed to map ccu memory\n");
1265 ret = -ENOMEM;
1266 goto put_mmio_node;
1267 }
1268
1269 /* Map the DXE memory */
1270 index = of_property_match_string(mmio_node, "reg-names", "dxe");
1271 wcn->dxe_base = of_iomap(mmio_node, index);
1272 if (!wcn->dxe_base) {
1273 wcn36xx_err("failed to map dxe memory\n");
1274 ret = -ENOMEM;
1275 goto unmap_ccu;
1276 }
1277
1278 /* External RF module */
1279 iris_node = of_get_child_by_name(mmio_node, "iris");
1280 if (iris_node) {
1281 if (of_device_is_compatible(iris_node, "qcom,wcn3620"))
1282 wcn->rf_id = RF_IRIS_WCN3620;
1283 of_node_put(iris_node);
1284 }
1285
1286 of_node_put(mmio_node);
1287 return 0;
1288
1289unmap_ccu:
1290 iounmap(wcn->ccu_base);
1291put_mmio_node:
1292 of_node_put(mmio_node);
1293 return ret;
1294}
1295
1296static int wcn36xx_probe(struct platform_device *pdev)
1297{
1298 struct ieee80211_hw *hw;
1299 struct wcn36xx *wcn;
1300 void *wcnss;
1301 int ret;
1302 const u8 *addr;
1303
1304 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe\n");
1305
1306 wcnss = dev_get_drvdata(pdev->dev.parent);
1307
1308 hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops);
1309 if (!hw) {
1310 wcn36xx_err("failed to alloc hw\n");
1311 ret = -ENOMEM;
1312 goto out_err;
1313 }
1314 platform_set_drvdata(pdev, hw);
1315 wcn = hw->priv;
1316 wcn->hw = hw;
1317 wcn->dev = &pdev->dev;
1318 wcn->first_boot = true;
1319 mutex_init(&wcn->conf_mutex);
1320 mutex_init(&wcn->hal_mutex);
1321 mutex_init(&wcn->scan_lock);
1322
1323 ret = dma_set_mask_and_coherent(wcn->dev, DMA_BIT_MASK(32));
1324 if (ret < 0) {
1325 wcn36xx_err("failed to set DMA mask: %d\n", ret);
1326 goto out_wq;
1327 }
1328
1329 INIT_WORK(&wcn->scan_work, wcn36xx_hw_scan_worker);
1330
1331 wcn->smd_channel = qcom_wcnss_open_channel(wcnss, "WLAN_CTRL", wcn36xx_smd_rsp_process, hw);
1332 if (IS_ERR(wcn->smd_channel)) {
1333 wcn36xx_err("failed to open WLAN_CTRL channel\n");
1334 ret = PTR_ERR(wcn->smd_channel);
1335 goto out_wq;
1336 }
1337
1338 addr = of_get_property(pdev->dev.of_node, "local-mac-address", &ret);
1339 if (addr && ret != ETH_ALEN) {
1340 wcn36xx_err("invalid local-mac-address\n");
1341 ret = -EINVAL;
1342 goto out_destroy_ept;
1343 } else if (addr) {
1344 wcn36xx_info("mac address: %pM\n", addr);
1345 SET_IEEE80211_PERM_ADDR(wcn->hw, addr);
1346 }
1347
1348 ret = wcn36xx_platform_get_resources(wcn, pdev);
1349 if (ret)
1350 goto out_destroy_ept;
1351
1352 wcn36xx_init_ieee80211(wcn);
1353 ret = ieee80211_register_hw(wcn->hw);
1354 if (ret)
1355 goto out_unmap;
1356
1357 return 0;
1358
1359out_unmap:
1360 iounmap(wcn->ccu_base);
1361 iounmap(wcn->dxe_base);
1362out_destroy_ept:
1363 rpmsg_destroy_ept(wcn->smd_channel);
1364out_wq:
1365 ieee80211_free_hw(hw);
1366out_err:
1367 return ret;
1368}
1369
1370static int wcn36xx_remove(struct platform_device *pdev)
1371{
1372 struct ieee80211_hw *hw = platform_get_drvdata(pdev);
1373 struct wcn36xx *wcn = hw->priv;
1374 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n");
1375
1376 release_firmware(wcn->nv);
1377
1378 ieee80211_unregister_hw(hw);
1379
1380 qcom_smem_state_put(wcn->tx_enable_state);
1381 qcom_smem_state_put(wcn->tx_rings_empty_state);
1382
1383 rpmsg_destroy_ept(wcn->smd_channel);
1384
1385 iounmap(wcn->dxe_base);
1386 iounmap(wcn->ccu_base);
1387
1388 mutex_destroy(&wcn->hal_mutex);
1389 ieee80211_free_hw(hw);
1390
1391 return 0;
1392}
1393
1394static const struct of_device_id wcn36xx_of_match[] = {
1395 { .compatible = "qcom,wcnss-wlan" },
1396 {}
1397};
1398MODULE_DEVICE_TABLE(of, wcn36xx_of_match);
1399
1400static struct platform_driver wcn36xx_driver = {
1401 .probe = wcn36xx_probe,
1402 .remove = wcn36xx_remove,
1403 .driver = {
1404 .name = "wcn36xx",
1405 .of_match_table = wcn36xx_of_match,
1406 },
1407};
1408
1409module_platform_driver(wcn36xx_driver);
1410
1411MODULE_LICENSE("Dual BSD/GPL");
1412MODULE_AUTHOR("Eugene Krasnikov k.eugene.e@gmail.com");
1413MODULE_FIRMWARE(WLAN_NV_FILE);