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