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_dbg(WCN36XX_DBG_MAC, "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 cancel_work_sync(&wcn->scan_work); 357 358 mutex_lock(&wcn->scan_lock); 359 if (wcn->scan_req) { 360 struct cfg80211_scan_info scan_info = { 361 .aborted = true, 362 }; 363 364 ieee80211_scan_completed(wcn->hw, &scan_info); 365 } 366 wcn->scan_req = NULL; 367 mutex_unlock(&wcn->scan_lock); 368 369 wcn36xx_debugfs_exit(wcn); 370 wcn36xx_smd_stop(wcn); 371 wcn36xx_dxe_deinit(wcn); 372 wcn36xx_smd_close(wcn); 373 374 wcn36xx_dxe_free_mem_pools(wcn); 375 wcn36xx_dxe_free_ctl_blks(wcn); 376 377 kfree(wcn->hal_buf); 378 } 379 380 static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed) 381 { 382 struct wcn36xx *wcn = hw->priv; 383 struct ieee80211_vif *vif = NULL; 384 struct wcn36xx_vif *tmp; 385 386 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed); 387 388 mutex_lock(&wcn->conf_mutex); 389 390 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { 391 int ch = WCN36XX_HW_CHANNEL(wcn); 392 wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d\n", 393 ch); 394 list_for_each_entry(tmp, &wcn->vif_list, list) { 395 vif = wcn36xx_priv_to_vif(tmp); 396 wcn36xx_smd_switch_channel(wcn, vif, ch); 397 } 398 } 399 400 if (changed & IEEE80211_CONF_CHANGE_PS) { 401 list_for_each_entry(tmp, &wcn->vif_list, list) { 402 vif = wcn36xx_priv_to_vif(tmp); 403 if (hw->conf.flags & IEEE80211_CONF_PS) { 404 if (vif->bss_conf.ps) /* ps allowed ? */ 405 wcn36xx_pmc_enter_bmps_state(wcn, vif); 406 } else { 407 wcn36xx_pmc_exit_bmps_state(wcn, vif); 408 } 409 } 410 } 411 412 mutex_unlock(&wcn->conf_mutex); 413 414 return 0; 415 } 416 417 static void wcn36xx_configure_filter(struct ieee80211_hw *hw, 418 unsigned int changed, 419 unsigned int *total, u64 multicast) 420 { 421 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp; 422 struct wcn36xx *wcn = hw->priv; 423 struct wcn36xx_vif *tmp; 424 struct ieee80211_vif *vif = NULL; 425 426 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac configure filter\n"); 427 428 mutex_lock(&wcn->conf_mutex); 429 430 *total &= FIF_ALLMULTI; 431 432 fp = (void *)(unsigned long)multicast; 433 list_for_each_entry(tmp, &wcn->vif_list, list) { 434 vif = wcn36xx_priv_to_vif(tmp); 435 436 /* FW handles MC filtering only when connected as STA */ 437 if (*total & FIF_ALLMULTI) 438 wcn36xx_smd_set_mc_list(wcn, vif, NULL); 439 else if (NL80211_IFTYPE_STATION == vif->type && tmp->sta_assoc) 440 wcn36xx_smd_set_mc_list(wcn, vif, fp); 441 } 442 443 mutex_unlock(&wcn->conf_mutex); 444 kfree(fp); 445 } 446 447 static u64 wcn36xx_prepare_multicast(struct ieee80211_hw *hw, 448 struct netdev_hw_addr_list *mc_list) 449 { 450 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp; 451 struct netdev_hw_addr *ha; 452 453 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac prepare multicast list\n"); 454 fp = kzalloc(sizeof(*fp), GFP_ATOMIC); 455 if (!fp) { 456 wcn36xx_err("Out of memory setting filters.\n"); 457 return 0; 458 } 459 460 fp->mc_addr_count = 0; 461 /* update multicast filtering parameters */ 462 if (netdev_hw_addr_list_count(mc_list) <= 463 WCN36XX_HAL_MAX_NUM_MULTICAST_ADDRESS) { 464 netdev_hw_addr_list_for_each(ha, mc_list) { 465 memcpy(fp->mc_addr[fp->mc_addr_count], 466 ha->addr, ETH_ALEN); 467 fp->mc_addr_count++; 468 } 469 } 470 471 return (u64)(unsigned long)fp; 472 } 473 474 static void wcn36xx_tx(struct ieee80211_hw *hw, 475 struct ieee80211_tx_control *control, 476 struct sk_buff *skb) 477 { 478 struct wcn36xx *wcn = hw->priv; 479 struct wcn36xx_sta *sta_priv = NULL; 480 481 if (control->sta) 482 sta_priv = wcn36xx_sta_to_priv(control->sta); 483 484 if (wcn36xx_start_tx(wcn, sta_priv, skb)) 485 ieee80211_free_txskb(wcn->hw, skb); 486 } 487 488 static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 489 struct ieee80211_vif *vif, 490 struct ieee80211_sta *sta, 491 struct ieee80211_key_conf *key_conf) 492 { 493 struct wcn36xx *wcn = hw->priv; 494 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 495 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta); 496 int ret = 0; 497 u8 key[WLAN_MAX_KEY_LEN]; 498 499 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 set key\n"); 500 wcn36xx_dbg(WCN36XX_DBG_MAC, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x\n", 501 cmd, key_conf->cipher, key_conf->keyidx, 502 key_conf->keylen, key_conf->flags); 503 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "KEY: ", 504 key_conf->key, 505 key_conf->keylen); 506 507 mutex_lock(&wcn->conf_mutex); 508 509 switch (key_conf->cipher) { 510 case WLAN_CIPHER_SUITE_WEP40: 511 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40; 512 break; 513 case WLAN_CIPHER_SUITE_WEP104: 514 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40; 515 break; 516 case WLAN_CIPHER_SUITE_CCMP: 517 vif_priv->encrypt_type = WCN36XX_HAL_ED_CCMP; 518 break; 519 case WLAN_CIPHER_SUITE_TKIP: 520 vif_priv->encrypt_type = WCN36XX_HAL_ED_TKIP; 521 break; 522 default: 523 wcn36xx_err("Unsupported key type 0x%x\n", 524 key_conf->cipher); 525 ret = -EOPNOTSUPP; 526 goto out; 527 } 528 529 switch (cmd) { 530 case SET_KEY: 531 if (WCN36XX_HAL_ED_TKIP == vif_priv->encrypt_type) { 532 /* 533 * Supplicant is sending key in the wrong order: 534 * Temporal Key (16 b) - TX MIC (8 b) - RX MIC (8 b) 535 * but HW expects it to be in the order as described in 536 * IEEE 802.11 spec (see chapter 11.7) like this: 537 * Temporal Key (16 b) - RX MIC (8 b) - TX MIC (8 b) 538 */ 539 memcpy(key, key_conf->key, 16); 540 memcpy(key + 16, key_conf->key + 24, 8); 541 memcpy(key + 24, key_conf->key + 16, 8); 542 } else { 543 memcpy(key, key_conf->key, key_conf->keylen); 544 } 545 546 if (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags) { 547 sta_priv->is_data_encrypted = true; 548 /* Reconfigure bss with encrypt_type */ 549 if (NL80211_IFTYPE_STATION == vif->type) 550 wcn36xx_smd_config_bss(wcn, 551 vif, 552 sta, 553 sta->addr, 554 true); 555 556 wcn36xx_smd_set_stakey(wcn, 557 vif_priv->encrypt_type, 558 key_conf->keyidx, 559 key_conf->keylen, 560 key, 561 get_sta_index(vif, sta_priv)); 562 } else { 563 wcn36xx_smd_set_bsskey(wcn, 564 vif_priv->encrypt_type, 565 vif_priv->bss_index, 566 key_conf->keyidx, 567 key_conf->keylen, 568 key); 569 if ((WLAN_CIPHER_SUITE_WEP40 == key_conf->cipher) || 570 (WLAN_CIPHER_SUITE_WEP104 == key_conf->cipher)) { 571 sta_priv->is_data_encrypted = true; 572 wcn36xx_smd_set_stakey(wcn, 573 vif_priv->encrypt_type, 574 key_conf->keyidx, 575 key_conf->keylen, 576 key, 577 get_sta_index(vif, sta_priv)); 578 } 579 } 580 break; 581 case DISABLE_KEY: 582 if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) { 583 if (vif_priv->bss_index != WCN36XX_HAL_BSS_INVALID_IDX) 584 wcn36xx_smd_remove_bsskey(wcn, 585 vif_priv->encrypt_type, 586 vif_priv->bss_index, 587 key_conf->keyidx); 588 589 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE; 590 } else { 591 sta_priv->is_data_encrypted = false; 592 /* do not remove key if disassociated */ 593 if (sta_priv->aid) 594 wcn36xx_smd_remove_stakey(wcn, 595 vif_priv->encrypt_type, 596 key_conf->keyidx, 597 get_sta_index(vif, sta_priv)); 598 } 599 break; 600 default: 601 wcn36xx_err("Unsupported key cmd 0x%x\n", cmd); 602 ret = -EOPNOTSUPP; 603 goto out; 604 } 605 606 out: 607 mutex_unlock(&wcn->conf_mutex); 608 609 return ret; 610 } 611 612 static void wcn36xx_hw_scan_worker(struct work_struct *work) 613 { 614 struct wcn36xx *wcn = container_of(work, struct wcn36xx, scan_work); 615 struct cfg80211_scan_request *req = wcn->scan_req; 616 u8 channels[WCN36XX_HAL_PNO_MAX_NETW_CHANNELS_EX]; 617 struct cfg80211_scan_info scan_info = {}; 618 bool aborted = false; 619 int i; 620 621 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 scan %d channels worker\n", req->n_channels); 622 623 for (i = 0; i < req->n_channels; i++) 624 channels[i] = req->channels[i]->hw_value; 625 626 wcn36xx_smd_update_scan_params(wcn, channels, req->n_channels); 627 628 wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN); 629 for (i = 0; i < req->n_channels; i++) { 630 mutex_lock(&wcn->scan_lock); 631 aborted = wcn->scan_aborted; 632 mutex_unlock(&wcn->scan_lock); 633 634 if (aborted) 635 break; 636 637 wcn->scan_freq = req->channels[i]->center_freq; 638 wcn->scan_band = req->channels[i]->band; 639 640 wcn36xx_smd_start_scan(wcn, req->channels[i]->hw_value); 641 msleep(30); 642 wcn36xx_smd_end_scan(wcn, req->channels[i]->hw_value); 643 644 wcn->scan_freq = 0; 645 } 646 wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN); 647 648 scan_info.aborted = aborted; 649 ieee80211_scan_completed(wcn->hw, &scan_info); 650 651 mutex_lock(&wcn->scan_lock); 652 wcn->scan_req = NULL; 653 mutex_unlock(&wcn->scan_lock); 654 } 655 656 static int wcn36xx_hw_scan(struct ieee80211_hw *hw, 657 struct ieee80211_vif *vif, 658 struct ieee80211_scan_request *hw_req) 659 { 660 struct wcn36xx *wcn = hw->priv; 661 mutex_lock(&wcn->scan_lock); 662 if (wcn->scan_req) { 663 mutex_unlock(&wcn->scan_lock); 664 return -EBUSY; 665 } 666 667 wcn->scan_aborted = false; 668 wcn->scan_req = &hw_req->req; 669 670 mutex_unlock(&wcn->scan_lock); 671 672 if (!get_feat_caps(wcn->fw_feat_caps, SCAN_OFFLOAD)) { 673 /* legacy manual/sw scan */ 674 schedule_work(&wcn->scan_work); 675 return 0; 676 } 677 678 return wcn36xx_smd_start_hw_scan(wcn, vif, &hw_req->req); 679 } 680 681 static void wcn36xx_cancel_hw_scan(struct ieee80211_hw *hw, 682 struct ieee80211_vif *vif) 683 { 684 struct wcn36xx *wcn = hw->priv; 685 686 mutex_lock(&wcn->scan_lock); 687 wcn->scan_aborted = true; 688 mutex_unlock(&wcn->scan_lock); 689 690 if (get_feat_caps(wcn->fw_feat_caps, SCAN_OFFLOAD)) { 691 /* ieee80211_scan_completed will be called on FW scan 692 * indication */ 693 wcn36xx_smd_stop_hw_scan(wcn); 694 } else { 695 struct cfg80211_scan_info scan_info = { 696 .aborted = true, 697 }; 698 699 cancel_work_sync(&wcn->scan_work); 700 ieee80211_scan_completed(wcn->hw, &scan_info); 701 } 702 } 703 704 static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta, 705 enum nl80211_band band) 706 { 707 int i, size; 708 u16 *rates_table; 709 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta); 710 u32 rates = sta->supp_rates[band]; 711 712 memset(&sta_priv->supported_rates, 0, 713 sizeof(sta_priv->supported_rates)); 714 sta_priv->supported_rates.op_rate_mode = STA_11n; 715 716 size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates); 717 rates_table = sta_priv->supported_rates.dsss_rates; 718 if (band == NL80211_BAND_2GHZ) { 719 for (i = 0; i < size; i++) { 720 if (rates & 0x01) { 721 rates_table[i] = wcn_2ghz_rates[i].hw_value; 722 rates = rates >> 1; 723 } 724 } 725 } 726 727 size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates); 728 rates_table = sta_priv->supported_rates.ofdm_rates; 729 for (i = 0; i < size; i++) { 730 if (rates & 0x01) { 731 rates_table[i] = wcn_5ghz_rates[i].hw_value; 732 rates = rates >> 1; 733 } 734 } 735 736 if (sta->ht_cap.ht_supported) { 737 BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) > 738 sizeof(sta_priv->supported_rates.supported_mcs_set)); 739 memcpy(sta_priv->supported_rates.supported_mcs_set, 740 sta->ht_cap.mcs.rx_mask, 741 sizeof(sta->ht_cap.mcs.rx_mask)); 742 } 743 } 744 void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates) 745 { 746 u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = { 747 HW_RATE_INDEX_6MBPS, 748 HW_RATE_INDEX_9MBPS, 749 HW_RATE_INDEX_12MBPS, 750 HW_RATE_INDEX_18MBPS, 751 HW_RATE_INDEX_24MBPS, 752 HW_RATE_INDEX_36MBPS, 753 HW_RATE_INDEX_48MBPS, 754 HW_RATE_INDEX_54MBPS 755 }; 756 u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = { 757 HW_RATE_INDEX_1MBPS, 758 HW_RATE_INDEX_2MBPS, 759 HW_RATE_INDEX_5_5MBPS, 760 HW_RATE_INDEX_11MBPS 761 }; 762 763 rates->op_rate_mode = STA_11n; 764 memcpy(rates->dsss_rates, dsss_rates, 765 sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES); 766 memcpy(rates->ofdm_rates, ofdm_rates, 767 sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES); 768 rates->supported_mcs_set[0] = 0xFF; 769 } 770 static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw, 771 struct ieee80211_vif *vif, 772 struct ieee80211_bss_conf *bss_conf, 773 u32 changed) 774 { 775 struct wcn36xx *wcn = hw->priv; 776 struct sk_buff *skb = NULL; 777 u16 tim_off, tim_len; 778 enum wcn36xx_hal_link_state link_state; 779 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 780 781 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n", 782 vif, changed); 783 784 mutex_lock(&wcn->conf_mutex); 785 786 if (changed & BSS_CHANGED_BEACON_INFO) { 787 wcn36xx_dbg(WCN36XX_DBG_MAC, 788 "mac bss changed dtim period %d\n", 789 bss_conf->dtim_period); 790 791 vif_priv->dtim_period = bss_conf->dtim_period; 792 } 793 794 if (changed & BSS_CHANGED_BSSID) { 795 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n", 796 bss_conf->bssid); 797 798 if (!is_zero_ether_addr(bss_conf->bssid)) { 799 vif_priv->is_joining = true; 800 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX; 801 wcn36xx_smd_join(wcn, bss_conf->bssid, 802 vif->addr, WCN36XX_HW_CHANNEL(wcn)); 803 wcn36xx_smd_config_bss(wcn, vif, NULL, 804 bss_conf->bssid, false); 805 } else { 806 vif_priv->is_joining = false; 807 wcn36xx_smd_delete_bss(wcn, vif); 808 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE; 809 } 810 } 811 812 if (changed & BSS_CHANGED_SSID) { 813 wcn36xx_dbg(WCN36XX_DBG_MAC, 814 "mac bss changed ssid\n"); 815 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ", 816 bss_conf->ssid, bss_conf->ssid_len); 817 818 vif_priv->ssid.length = bss_conf->ssid_len; 819 memcpy(&vif_priv->ssid.ssid, 820 bss_conf->ssid, 821 bss_conf->ssid_len); 822 } 823 824 if (changed & BSS_CHANGED_ASSOC) { 825 vif_priv->is_joining = false; 826 if (bss_conf->assoc) { 827 struct ieee80211_sta *sta; 828 struct wcn36xx_sta *sta_priv; 829 830 wcn36xx_dbg(WCN36XX_DBG_MAC, 831 "mac assoc bss %pM vif %pM AID=%d\n", 832 bss_conf->bssid, 833 vif->addr, 834 bss_conf->aid); 835 836 vif_priv->sta_assoc = true; 837 838 /* 839 * Holding conf_mutex ensures mutal exclusion with 840 * wcn36xx_sta_remove() and as such ensures that sta 841 * won't be freed while we're operating on it. As such 842 * we do not need to hold the rcu_read_lock(). 843 */ 844 sta = ieee80211_find_sta(vif, bss_conf->bssid); 845 if (!sta) { 846 wcn36xx_err("sta %pM is not found\n", 847 bss_conf->bssid); 848 goto out; 849 } 850 sta_priv = wcn36xx_sta_to_priv(sta); 851 852 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn)); 853 854 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid, 855 vif->addr, 856 WCN36XX_HAL_LINK_POSTASSOC_STATE); 857 wcn36xx_smd_config_bss(wcn, vif, sta, 858 bss_conf->bssid, 859 true); 860 sta_priv->aid = bss_conf->aid; 861 /* 862 * config_sta must be called from because this is the 863 * place where AID is available. 864 */ 865 wcn36xx_smd_config_sta(wcn, vif, sta); 866 } else { 867 wcn36xx_dbg(WCN36XX_DBG_MAC, 868 "disassociated bss %pM vif %pM AID=%d\n", 869 bss_conf->bssid, 870 vif->addr, 871 bss_conf->aid); 872 vif_priv->sta_assoc = false; 873 wcn36xx_smd_set_link_st(wcn, 874 bss_conf->bssid, 875 vif->addr, 876 WCN36XX_HAL_LINK_IDLE_STATE); 877 } 878 } 879 880 if (changed & BSS_CHANGED_AP_PROBE_RESP) { 881 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n"); 882 skb = ieee80211_proberesp_get(hw, vif); 883 if (!skb) { 884 wcn36xx_err("failed to alloc probereq skb\n"); 885 goto out; 886 } 887 888 wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb); 889 dev_kfree_skb(skb); 890 } 891 892 if (changed & BSS_CHANGED_BEACON_ENABLED || 893 changed & BSS_CHANGED_BEACON) { 894 wcn36xx_dbg(WCN36XX_DBG_MAC, 895 "mac bss changed beacon enabled %d\n", 896 bss_conf->enable_beacon); 897 898 if (bss_conf->enable_beacon) { 899 vif_priv->dtim_period = bss_conf->dtim_period; 900 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX; 901 wcn36xx_smd_config_bss(wcn, vif, NULL, 902 vif->addr, false); 903 skb = ieee80211_beacon_get_tim(hw, vif, &tim_off, 904 &tim_len); 905 if (!skb) { 906 wcn36xx_err("failed to alloc beacon skb\n"); 907 goto out; 908 } 909 wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0); 910 dev_kfree_skb(skb); 911 912 if (vif->type == NL80211_IFTYPE_ADHOC || 913 vif->type == NL80211_IFTYPE_MESH_POINT) 914 link_state = WCN36XX_HAL_LINK_IBSS_STATE; 915 else 916 link_state = WCN36XX_HAL_LINK_AP_STATE; 917 918 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr, 919 link_state); 920 } else { 921 wcn36xx_smd_delete_bss(wcn, vif); 922 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr, 923 WCN36XX_HAL_LINK_IDLE_STATE); 924 } 925 } 926 out: 927 928 mutex_unlock(&wcn->conf_mutex); 929 930 return; 931 } 932 933 /* this is required when using IEEE80211_HW_HAS_RATE_CONTROL */ 934 static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 935 { 936 struct wcn36xx *wcn = hw->priv; 937 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value); 938 939 mutex_lock(&wcn->conf_mutex); 940 wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value); 941 mutex_unlock(&wcn->conf_mutex); 942 943 return 0; 944 } 945 946 static void wcn36xx_remove_interface(struct ieee80211_hw *hw, 947 struct ieee80211_vif *vif) 948 { 949 struct wcn36xx *wcn = hw->priv; 950 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 951 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif); 952 953 mutex_lock(&wcn->conf_mutex); 954 955 list_del(&vif_priv->list); 956 wcn36xx_smd_delete_sta_self(wcn, vif->addr); 957 958 mutex_unlock(&wcn->conf_mutex); 959 } 960 961 static int wcn36xx_add_interface(struct ieee80211_hw *hw, 962 struct ieee80211_vif *vif) 963 { 964 struct wcn36xx *wcn = hw->priv; 965 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 966 967 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n", 968 vif, vif->type); 969 970 if (!(NL80211_IFTYPE_STATION == vif->type || 971 NL80211_IFTYPE_AP == vif->type || 972 NL80211_IFTYPE_ADHOC == vif->type || 973 NL80211_IFTYPE_MESH_POINT == vif->type)) { 974 wcn36xx_warn("Unsupported interface type requested: %d\n", 975 vif->type); 976 return -EOPNOTSUPP; 977 } 978 979 mutex_lock(&wcn->conf_mutex); 980 981 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX; 982 list_add(&vif_priv->list, &wcn->vif_list); 983 wcn36xx_smd_add_sta_self(wcn, vif); 984 985 mutex_unlock(&wcn->conf_mutex); 986 987 return 0; 988 } 989 990 static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 991 struct ieee80211_sta *sta) 992 { 993 struct wcn36xx *wcn = hw->priv; 994 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 995 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta); 996 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n", 997 vif, sta->addr); 998 999 mutex_lock(&wcn->conf_mutex); 1000 1001 spin_lock_init(&sta_priv->ampdu_lock); 1002 sta_priv->vif = vif_priv; 1003 /* 1004 * For STA mode HW will be configured on BSS_CHANGED_ASSOC because 1005 * at this stage AID is not available yet. 1006 */ 1007 if (NL80211_IFTYPE_STATION != vif->type) { 1008 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn)); 1009 sta_priv->aid = sta->aid; 1010 wcn36xx_smd_config_sta(wcn, vif, sta); 1011 } 1012 1013 mutex_unlock(&wcn->conf_mutex); 1014 1015 return 0; 1016 } 1017 1018 static int wcn36xx_sta_remove(struct ieee80211_hw *hw, 1019 struct ieee80211_vif *vif, 1020 struct ieee80211_sta *sta) 1021 { 1022 struct wcn36xx *wcn = hw->priv; 1023 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta); 1024 1025 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n", 1026 vif, sta->addr, sta_priv->sta_index); 1027 1028 mutex_lock(&wcn->conf_mutex); 1029 1030 wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index); 1031 sta_priv->vif = NULL; 1032 1033 mutex_unlock(&wcn->conf_mutex); 1034 1035 return 0; 1036 } 1037 1038 #ifdef CONFIG_PM 1039 1040 static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow) 1041 { 1042 struct wcn36xx *wcn = hw->priv; 1043 1044 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n"); 1045 1046 flush_workqueue(wcn->hal_ind_wq); 1047 wcn36xx_smd_set_power_params(wcn, true); 1048 return 0; 1049 } 1050 1051 static int wcn36xx_resume(struct ieee80211_hw *hw) 1052 { 1053 struct wcn36xx *wcn = hw->priv; 1054 1055 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n"); 1056 1057 flush_workqueue(wcn->hal_ind_wq); 1058 wcn36xx_smd_set_power_params(wcn, false); 1059 return 0; 1060 } 1061 1062 #endif 1063 1064 static int wcn36xx_ampdu_action(struct ieee80211_hw *hw, 1065 struct ieee80211_vif *vif, 1066 struct ieee80211_ampdu_params *params) 1067 { 1068 struct wcn36xx *wcn = hw->priv; 1069 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(params->sta); 1070 struct ieee80211_sta *sta = params->sta; 1071 enum ieee80211_ampdu_mlme_action action = params->action; 1072 u16 tid = params->tid; 1073 u16 *ssn = ¶ms->ssn; 1074 1075 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n", 1076 action, tid); 1077 1078 mutex_lock(&wcn->conf_mutex); 1079 1080 switch (action) { 1081 case IEEE80211_AMPDU_RX_START: 1082 sta_priv->tid = tid; 1083 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0, 1084 get_sta_index(vif, sta_priv)); 1085 wcn36xx_smd_add_ba(wcn); 1086 wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv)); 1087 break; 1088 case IEEE80211_AMPDU_RX_STOP: 1089 wcn36xx_smd_del_ba(wcn, tid, get_sta_index(vif, sta_priv)); 1090 break; 1091 case IEEE80211_AMPDU_TX_START: 1092 spin_lock_bh(&sta_priv->ampdu_lock); 1093 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_START; 1094 spin_unlock_bh(&sta_priv->ampdu_lock); 1095 1096 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); 1097 break; 1098 case IEEE80211_AMPDU_TX_OPERATIONAL: 1099 spin_lock_bh(&sta_priv->ampdu_lock); 1100 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_OPERATIONAL; 1101 spin_unlock_bh(&sta_priv->ampdu_lock); 1102 1103 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 1, 1104 get_sta_index(vif, sta_priv)); 1105 break; 1106 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1107 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1108 case IEEE80211_AMPDU_TX_STOP_CONT: 1109 spin_lock_bh(&sta_priv->ampdu_lock); 1110 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_NONE; 1111 spin_unlock_bh(&sta_priv->ampdu_lock); 1112 1113 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 1114 break; 1115 default: 1116 wcn36xx_err("Unknown AMPDU action\n"); 1117 } 1118 1119 mutex_unlock(&wcn->conf_mutex); 1120 1121 return 0; 1122 } 1123 1124 static const struct ieee80211_ops wcn36xx_ops = { 1125 .start = wcn36xx_start, 1126 .stop = wcn36xx_stop, 1127 .add_interface = wcn36xx_add_interface, 1128 .remove_interface = wcn36xx_remove_interface, 1129 #ifdef CONFIG_PM 1130 .suspend = wcn36xx_suspend, 1131 .resume = wcn36xx_resume, 1132 #endif 1133 .config = wcn36xx_config, 1134 .prepare_multicast = wcn36xx_prepare_multicast, 1135 .configure_filter = wcn36xx_configure_filter, 1136 .tx = wcn36xx_tx, 1137 .set_key = wcn36xx_set_key, 1138 .hw_scan = wcn36xx_hw_scan, 1139 .cancel_hw_scan = wcn36xx_cancel_hw_scan, 1140 .bss_info_changed = wcn36xx_bss_info_changed, 1141 .set_rts_threshold = wcn36xx_set_rts_threshold, 1142 .sta_add = wcn36xx_sta_add, 1143 .sta_remove = wcn36xx_sta_remove, 1144 .ampdu_action = wcn36xx_ampdu_action, 1145 }; 1146 1147 static int wcn36xx_init_ieee80211(struct wcn36xx *wcn) 1148 { 1149 int ret = 0; 1150 1151 static const u32 cipher_suites[] = { 1152 WLAN_CIPHER_SUITE_WEP40, 1153 WLAN_CIPHER_SUITE_WEP104, 1154 WLAN_CIPHER_SUITE_TKIP, 1155 WLAN_CIPHER_SUITE_CCMP, 1156 }; 1157 1158 ieee80211_hw_set(wcn->hw, TIMING_BEACON_ONLY); 1159 ieee80211_hw_set(wcn->hw, AMPDU_AGGREGATION); 1160 ieee80211_hw_set(wcn->hw, CONNECTION_MONITOR); 1161 ieee80211_hw_set(wcn->hw, SUPPORTS_PS); 1162 ieee80211_hw_set(wcn->hw, SIGNAL_DBM); 1163 ieee80211_hw_set(wcn->hw, HAS_RATE_CONTROL); 1164 ieee80211_hw_set(wcn->hw, SINGLE_SCAN_ON_ALL_BANDS); 1165 1166 wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 1167 BIT(NL80211_IFTYPE_AP) | 1168 BIT(NL80211_IFTYPE_ADHOC) | 1169 BIT(NL80211_IFTYPE_MESH_POINT); 1170 1171 wcn->hw->wiphy->bands[NL80211_BAND_2GHZ] = &wcn_band_2ghz; 1172 if (wcn->rf_id != RF_IRIS_WCN3620) 1173 wcn->hw->wiphy->bands[NL80211_BAND_5GHZ] = &wcn_band_5ghz; 1174 1175 wcn->hw->wiphy->max_scan_ssids = WCN36XX_MAX_SCAN_SSIDS; 1176 wcn->hw->wiphy->max_scan_ie_len = WCN36XX_MAX_SCAN_IE_LEN; 1177 1178 wcn->hw->wiphy->cipher_suites = cipher_suites; 1179 wcn->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); 1180 1181 #ifdef CONFIG_PM 1182 wcn->hw->wiphy->wowlan = &wowlan_support; 1183 #endif 1184 1185 wcn->hw->max_listen_interval = 200; 1186 1187 wcn->hw->queues = 4; 1188 1189 SET_IEEE80211_DEV(wcn->hw, wcn->dev); 1190 1191 wcn->hw->sta_data_size = sizeof(struct wcn36xx_sta); 1192 wcn->hw->vif_data_size = sizeof(struct wcn36xx_vif); 1193 1194 wiphy_ext_feature_set(wcn->hw->wiphy, 1195 NL80211_EXT_FEATURE_CQM_RSSI_LIST); 1196 1197 return ret; 1198 } 1199 1200 static int wcn36xx_platform_get_resources(struct wcn36xx *wcn, 1201 struct platform_device *pdev) 1202 { 1203 struct device_node *mmio_node; 1204 struct device_node *iris_node; 1205 struct resource *res; 1206 int index; 1207 int ret; 1208 1209 /* Set TX IRQ */ 1210 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "tx"); 1211 if (!res) { 1212 wcn36xx_err("failed to get tx_irq\n"); 1213 return -ENOENT; 1214 } 1215 wcn->tx_irq = res->start; 1216 1217 /* Set RX IRQ */ 1218 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "rx"); 1219 if (!res) { 1220 wcn36xx_err("failed to get rx_irq\n"); 1221 return -ENOENT; 1222 } 1223 wcn->rx_irq = res->start; 1224 1225 /* Acquire SMSM tx enable handle */ 1226 wcn->tx_enable_state = qcom_smem_state_get(&pdev->dev, 1227 "tx-enable", &wcn->tx_enable_state_bit); 1228 if (IS_ERR(wcn->tx_enable_state)) { 1229 wcn36xx_err("failed to get tx-enable state\n"); 1230 return PTR_ERR(wcn->tx_enable_state); 1231 } 1232 1233 /* Acquire SMSM tx rings empty handle */ 1234 wcn->tx_rings_empty_state = qcom_smem_state_get(&pdev->dev, 1235 "tx-rings-empty", &wcn->tx_rings_empty_state_bit); 1236 if (IS_ERR(wcn->tx_rings_empty_state)) { 1237 wcn36xx_err("failed to get tx-rings-empty state\n"); 1238 return PTR_ERR(wcn->tx_rings_empty_state); 1239 } 1240 1241 mmio_node = of_parse_phandle(pdev->dev.parent->of_node, "qcom,mmio", 0); 1242 if (!mmio_node) { 1243 wcn36xx_err("failed to acquire qcom,mmio reference\n"); 1244 return -EINVAL; 1245 } 1246 1247 wcn->is_pronto = !!of_device_is_compatible(mmio_node, "qcom,pronto"); 1248 1249 /* Map the CCU memory */ 1250 index = of_property_match_string(mmio_node, "reg-names", "ccu"); 1251 wcn->ccu_base = of_iomap(mmio_node, index); 1252 if (!wcn->ccu_base) { 1253 wcn36xx_err("failed to map ccu memory\n"); 1254 ret = -ENOMEM; 1255 goto put_mmio_node; 1256 } 1257 1258 /* Map the DXE memory */ 1259 index = of_property_match_string(mmio_node, "reg-names", "dxe"); 1260 wcn->dxe_base = of_iomap(mmio_node, index); 1261 if (!wcn->dxe_base) { 1262 wcn36xx_err("failed to map dxe memory\n"); 1263 ret = -ENOMEM; 1264 goto unmap_ccu; 1265 } 1266 1267 /* External RF module */ 1268 iris_node = of_get_child_by_name(mmio_node, "iris"); 1269 if (iris_node) { 1270 if (of_device_is_compatible(iris_node, "qcom,wcn3620")) 1271 wcn->rf_id = RF_IRIS_WCN3620; 1272 of_node_put(iris_node); 1273 } 1274 1275 of_node_put(mmio_node); 1276 return 0; 1277 1278 unmap_ccu: 1279 iounmap(wcn->ccu_base); 1280 put_mmio_node: 1281 of_node_put(mmio_node); 1282 return ret; 1283 } 1284 1285 static int wcn36xx_probe(struct platform_device *pdev) 1286 { 1287 struct ieee80211_hw *hw; 1288 struct wcn36xx *wcn; 1289 void *wcnss; 1290 int ret; 1291 const u8 *addr; 1292 1293 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe\n"); 1294 1295 wcnss = dev_get_drvdata(pdev->dev.parent); 1296 1297 hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops); 1298 if (!hw) { 1299 wcn36xx_err("failed to alloc hw\n"); 1300 ret = -ENOMEM; 1301 goto out_err; 1302 } 1303 platform_set_drvdata(pdev, hw); 1304 wcn = hw->priv; 1305 wcn->hw = hw; 1306 wcn->dev = &pdev->dev; 1307 wcn->first_boot = true; 1308 mutex_init(&wcn->conf_mutex); 1309 mutex_init(&wcn->hal_mutex); 1310 mutex_init(&wcn->scan_lock); 1311 1312 INIT_WORK(&wcn->scan_work, wcn36xx_hw_scan_worker); 1313 1314 wcn->smd_channel = qcom_wcnss_open_channel(wcnss, "WLAN_CTRL", wcn36xx_smd_rsp_process, hw); 1315 if (IS_ERR(wcn->smd_channel)) { 1316 wcn36xx_err("failed to open WLAN_CTRL channel\n"); 1317 ret = PTR_ERR(wcn->smd_channel); 1318 goto out_wq; 1319 } 1320 1321 addr = of_get_property(pdev->dev.of_node, "local-mac-address", &ret); 1322 if (addr && ret != ETH_ALEN) { 1323 wcn36xx_err("invalid local-mac-address\n"); 1324 ret = -EINVAL; 1325 goto out_wq; 1326 } else if (addr) { 1327 wcn36xx_info("mac address: %pM\n", addr); 1328 SET_IEEE80211_PERM_ADDR(wcn->hw, addr); 1329 } 1330 1331 ret = wcn36xx_platform_get_resources(wcn, pdev); 1332 if (ret) 1333 goto out_wq; 1334 1335 wcn36xx_init_ieee80211(wcn); 1336 ret = ieee80211_register_hw(wcn->hw); 1337 if (ret) 1338 goto out_unmap; 1339 1340 return 0; 1341 1342 out_unmap: 1343 iounmap(wcn->ccu_base); 1344 iounmap(wcn->dxe_base); 1345 out_wq: 1346 ieee80211_free_hw(hw); 1347 out_err: 1348 return ret; 1349 } 1350 1351 static int wcn36xx_remove(struct platform_device *pdev) 1352 { 1353 struct ieee80211_hw *hw = platform_get_drvdata(pdev); 1354 struct wcn36xx *wcn = hw->priv; 1355 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n"); 1356 1357 release_firmware(wcn->nv); 1358 1359 ieee80211_unregister_hw(hw); 1360 1361 qcom_smem_state_put(wcn->tx_enable_state); 1362 qcom_smem_state_put(wcn->tx_rings_empty_state); 1363 1364 rpmsg_destroy_ept(wcn->smd_channel); 1365 1366 iounmap(wcn->dxe_base); 1367 iounmap(wcn->ccu_base); 1368 1369 mutex_destroy(&wcn->hal_mutex); 1370 ieee80211_free_hw(hw); 1371 1372 return 0; 1373 } 1374 1375 static const struct of_device_id wcn36xx_of_match[] = { 1376 { .compatible = "qcom,wcnss-wlan" }, 1377 {} 1378 }; 1379 MODULE_DEVICE_TABLE(of, wcn36xx_of_match); 1380 1381 static struct platform_driver wcn36xx_driver = { 1382 .probe = wcn36xx_probe, 1383 .remove = wcn36xx_remove, 1384 .driver = { 1385 .name = "wcn36xx", 1386 .of_match_table = wcn36xx_of_match, 1387 }, 1388 }; 1389 1390 module_platform_driver(wcn36xx_driver); 1391 1392 MODULE_LICENSE("Dual BSD/GPL"); 1393 MODULE_AUTHOR("Eugene Krasnikov k.eugene.e@gmail.com"); 1394 MODULE_FIRMWARE(WLAN_NV_FILE); 1395