1 /* 2 * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com> 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION 13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 18 19 #include <linux/module.h> 20 #include <linux/firmware.h> 21 #include <linux/platform_device.h> 22 #include <linux/of_address.h> 23 #include <linux/of_device.h> 24 #include <linux/of_irq.h> 25 #include <linux/rpmsg.h> 26 #include <linux/soc/qcom/smem_state.h> 27 #include <linux/soc/qcom/wcnss_ctrl.h> 28 #include "wcn36xx.h" 29 30 unsigned int wcn36xx_dbg_mask; 31 module_param_named(debug_mask, wcn36xx_dbg_mask, uint, 0644); 32 MODULE_PARM_DESC(debug_mask, "Debugging mask"); 33 34 #define CHAN2G(_freq, _idx) { \ 35 .band = NL80211_BAND_2GHZ, \ 36 .center_freq = (_freq), \ 37 .hw_value = (_idx), \ 38 .max_power = 25, \ 39 } 40 41 #define CHAN5G(_freq, _idx) { \ 42 .band = NL80211_BAND_5GHZ, \ 43 .center_freq = (_freq), \ 44 .hw_value = (_idx), \ 45 .max_power = 25, \ 46 } 47 48 /* The wcn firmware expects channel values to matching 49 * their mnemonic values. So use these for .hw_value. */ 50 static struct ieee80211_channel wcn_2ghz_channels[] = { 51 CHAN2G(2412, 1), /* Channel 1 */ 52 CHAN2G(2417, 2), /* Channel 2 */ 53 CHAN2G(2422, 3), /* Channel 3 */ 54 CHAN2G(2427, 4), /* Channel 4 */ 55 CHAN2G(2432, 5), /* Channel 5 */ 56 CHAN2G(2437, 6), /* Channel 6 */ 57 CHAN2G(2442, 7), /* Channel 7 */ 58 CHAN2G(2447, 8), /* Channel 8 */ 59 CHAN2G(2452, 9), /* Channel 9 */ 60 CHAN2G(2457, 10), /* Channel 10 */ 61 CHAN2G(2462, 11), /* Channel 11 */ 62 CHAN2G(2467, 12), /* Channel 12 */ 63 CHAN2G(2472, 13), /* Channel 13 */ 64 CHAN2G(2484, 14) /* Channel 14 */ 65 66 }; 67 68 static struct ieee80211_channel wcn_5ghz_channels[] = { 69 CHAN5G(5180, 36), 70 CHAN5G(5200, 40), 71 CHAN5G(5220, 44), 72 CHAN5G(5240, 48), 73 CHAN5G(5260, 52), 74 CHAN5G(5280, 56), 75 CHAN5G(5300, 60), 76 CHAN5G(5320, 64), 77 CHAN5G(5500, 100), 78 CHAN5G(5520, 104), 79 CHAN5G(5540, 108), 80 CHAN5G(5560, 112), 81 CHAN5G(5580, 116), 82 CHAN5G(5600, 120), 83 CHAN5G(5620, 124), 84 CHAN5G(5640, 128), 85 CHAN5G(5660, 132), 86 CHAN5G(5700, 140), 87 CHAN5G(5745, 149), 88 CHAN5G(5765, 153), 89 CHAN5G(5785, 157), 90 CHAN5G(5805, 161), 91 CHAN5G(5825, 165) 92 }; 93 94 #define RATE(_bitrate, _hw_rate, _flags) { \ 95 .bitrate = (_bitrate), \ 96 .flags = (_flags), \ 97 .hw_value = (_hw_rate), \ 98 .hw_value_short = (_hw_rate) \ 99 } 100 101 static struct ieee80211_rate wcn_2ghz_rates[] = { 102 RATE(10, HW_RATE_INDEX_1MBPS, 0), 103 RATE(20, HW_RATE_INDEX_2MBPS, IEEE80211_RATE_SHORT_PREAMBLE), 104 RATE(55, HW_RATE_INDEX_5_5MBPS, IEEE80211_RATE_SHORT_PREAMBLE), 105 RATE(110, HW_RATE_INDEX_11MBPS, IEEE80211_RATE_SHORT_PREAMBLE), 106 RATE(60, HW_RATE_INDEX_6MBPS, 0), 107 RATE(90, HW_RATE_INDEX_9MBPS, 0), 108 RATE(120, HW_RATE_INDEX_12MBPS, 0), 109 RATE(180, HW_RATE_INDEX_18MBPS, 0), 110 RATE(240, HW_RATE_INDEX_24MBPS, 0), 111 RATE(360, HW_RATE_INDEX_36MBPS, 0), 112 RATE(480, HW_RATE_INDEX_48MBPS, 0), 113 RATE(540, HW_RATE_INDEX_54MBPS, 0) 114 }; 115 116 static struct ieee80211_rate wcn_5ghz_rates[] = { 117 RATE(60, HW_RATE_INDEX_6MBPS, 0), 118 RATE(90, HW_RATE_INDEX_9MBPS, 0), 119 RATE(120, HW_RATE_INDEX_12MBPS, 0), 120 RATE(180, HW_RATE_INDEX_18MBPS, 0), 121 RATE(240, HW_RATE_INDEX_24MBPS, 0), 122 RATE(360, HW_RATE_INDEX_36MBPS, 0), 123 RATE(480, HW_RATE_INDEX_48MBPS, 0), 124 RATE(540, HW_RATE_INDEX_54MBPS, 0) 125 }; 126 127 static struct ieee80211_supported_band wcn_band_2ghz = { 128 .channels = wcn_2ghz_channels, 129 .n_channels = ARRAY_SIZE(wcn_2ghz_channels), 130 .bitrates = wcn_2ghz_rates, 131 .n_bitrates = ARRAY_SIZE(wcn_2ghz_rates), 132 .ht_cap = { 133 .cap = IEEE80211_HT_CAP_GRN_FLD | 134 IEEE80211_HT_CAP_SGI_20 | 135 IEEE80211_HT_CAP_DSSSCCK40 | 136 IEEE80211_HT_CAP_LSIG_TXOP_PROT, 137 .ht_supported = true, 138 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, 139 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16, 140 .mcs = { 141 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, 142 .rx_highest = cpu_to_le16(72), 143 .tx_params = IEEE80211_HT_MCS_TX_DEFINED, 144 } 145 } 146 }; 147 148 static struct ieee80211_supported_band wcn_band_5ghz = { 149 .channels = wcn_5ghz_channels, 150 .n_channels = ARRAY_SIZE(wcn_5ghz_channels), 151 .bitrates = wcn_5ghz_rates, 152 .n_bitrates = ARRAY_SIZE(wcn_5ghz_rates), 153 .ht_cap = { 154 .cap = IEEE80211_HT_CAP_GRN_FLD | 155 IEEE80211_HT_CAP_SGI_20 | 156 IEEE80211_HT_CAP_DSSSCCK40 | 157 IEEE80211_HT_CAP_LSIG_TXOP_PROT | 158 IEEE80211_HT_CAP_SGI_40 | 159 IEEE80211_HT_CAP_SUP_WIDTH_20_40, 160 .ht_supported = true, 161 .ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K, 162 .ampdu_density = IEEE80211_HT_MPDU_DENSITY_16, 163 .mcs = { 164 .rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, }, 165 .rx_highest = cpu_to_le16(72), 166 .tx_params = IEEE80211_HT_MCS_TX_DEFINED, 167 } 168 } 169 }; 170 171 #ifdef CONFIG_PM 172 173 static const struct wiphy_wowlan_support wowlan_support = { 174 .flags = WIPHY_WOWLAN_ANY 175 }; 176 177 #endif 178 179 static inline u8 get_sta_index(struct ieee80211_vif *vif, 180 struct wcn36xx_sta *sta_priv) 181 { 182 return NL80211_IFTYPE_STATION == vif->type ? 183 sta_priv->bss_sta_index : 184 sta_priv->sta_index; 185 } 186 187 static const char * const wcn36xx_caps_names[] = { 188 "MCC", /* 0 */ 189 "P2P", /* 1 */ 190 "DOT11AC", /* 2 */ 191 "SLM_SESSIONIZATION", /* 3 */ 192 "DOT11AC_OPMODE", /* 4 */ 193 "SAP32STA", /* 5 */ 194 "TDLS", /* 6 */ 195 "P2P_GO_NOA_DECOUPLE_INIT_SCAN",/* 7 */ 196 "WLANACTIVE_OFFLOAD", /* 8 */ 197 "BEACON_OFFLOAD", /* 9 */ 198 "SCAN_OFFLOAD", /* 10 */ 199 "ROAM_OFFLOAD", /* 11 */ 200 "BCN_MISS_OFFLOAD", /* 12 */ 201 "STA_POWERSAVE", /* 13 */ 202 "STA_ADVANCED_PWRSAVE", /* 14 */ 203 "AP_UAPSD", /* 15 */ 204 "AP_DFS", /* 16 */ 205 "BLOCKACK", /* 17 */ 206 "PHY_ERR", /* 18 */ 207 "BCN_FILTER", /* 19 */ 208 "RTT", /* 20 */ 209 "RATECTRL", /* 21 */ 210 "WOW", /* 22 */ 211 "WLAN_ROAM_SCAN_OFFLOAD", /* 23 */ 212 "SPECULATIVE_PS_POLL", /* 24 */ 213 "SCAN_SCH", /* 25 */ 214 "IBSS_HEARTBEAT_OFFLOAD", /* 26 */ 215 "WLAN_SCAN_OFFLOAD", /* 27 */ 216 "WLAN_PERIODIC_TX_PTRN", /* 28 */ 217 "ADVANCE_TDLS", /* 29 */ 218 "BATCH_SCAN", /* 30 */ 219 "FW_IN_TX_PATH", /* 31 */ 220 "EXTENDED_NSOFFLOAD_SLOT", /* 32 */ 221 "CH_SWITCH_V1", /* 33 */ 222 "HT40_OBSS_SCAN", /* 34 */ 223 "UPDATE_CHANNEL_LIST", /* 35 */ 224 "WLAN_MCADDR_FLT", /* 36 */ 225 "WLAN_CH144", /* 37 */ 226 "NAN", /* 38 */ 227 "TDLS_SCAN_COEXISTENCE", /* 39 */ 228 "LINK_LAYER_STATS_MEAS", /* 40 */ 229 "MU_MIMO", /* 41 */ 230 "EXTENDED_SCAN", /* 42 */ 231 "DYNAMIC_WMM_PS", /* 43 */ 232 "MAC_SPOOFED_SCAN", /* 44 */ 233 "BMU_ERROR_GENERIC_RECOVERY", /* 45 */ 234 "DISA", /* 46 */ 235 "FW_STATS", /* 47 */ 236 "WPS_PRBRSP_TMPL", /* 48 */ 237 "BCN_IE_FLT_DELTA", /* 49 */ 238 "TDLS_OFF_CHANNEL", /* 51 */ 239 "RTT3", /* 52 */ 240 "MGMT_FRAME_LOGGING", /* 53 */ 241 "ENHANCED_TXBD_COMPLETION", /* 54 */ 242 "LOGGING_ENHANCEMENT", /* 55 */ 243 "EXT_SCAN_ENHANCED", /* 56 */ 244 "MEMORY_DUMP_SUPPORTED", /* 57 */ 245 "PER_PKT_STATS_SUPPORTED", /* 58 */ 246 "EXT_LL_STAT", /* 60 */ 247 "WIFI_CONFIG", /* 61 */ 248 "ANTENNA_DIVERSITY_SELECTION", /* 62 */ 249 }; 250 251 static const char *wcn36xx_get_cap_name(enum place_holder_in_cap_bitmap x) 252 { 253 if (x >= ARRAY_SIZE(wcn36xx_caps_names)) 254 return "UNKNOWN"; 255 return wcn36xx_caps_names[x]; 256 } 257 258 static void wcn36xx_feat_caps_info(struct wcn36xx *wcn) 259 { 260 int i; 261 262 for (i = 0; i < MAX_FEATURE_SUPPORTED; i++) { 263 if (get_feat_caps(wcn->fw_feat_caps, i)) 264 wcn36xx_info("FW Cap %s\n", wcn36xx_get_cap_name(i)); 265 } 266 } 267 268 static int wcn36xx_start(struct ieee80211_hw *hw) 269 { 270 struct wcn36xx *wcn = hw->priv; 271 int ret; 272 273 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac start\n"); 274 275 /* SMD initialization */ 276 ret = wcn36xx_smd_open(wcn); 277 if (ret) { 278 wcn36xx_err("Failed to open smd channel: %d\n", ret); 279 goto out_err; 280 } 281 282 /* Allocate memory pools for Mgmt BD headers and Data BD headers */ 283 ret = wcn36xx_dxe_allocate_mem_pools(wcn); 284 if (ret) { 285 wcn36xx_err("Failed to alloc DXE mempool: %d\n", ret); 286 goto out_smd_close; 287 } 288 289 ret = wcn36xx_dxe_alloc_ctl_blks(wcn); 290 if (ret) { 291 wcn36xx_err("Failed to alloc DXE ctl blocks: %d\n", ret); 292 goto out_free_dxe_pool; 293 } 294 295 wcn->hal_buf = kmalloc(WCN36XX_HAL_BUF_SIZE, GFP_KERNEL); 296 if (!wcn->hal_buf) { 297 wcn36xx_err("Failed to allocate smd buf\n"); 298 ret = -ENOMEM; 299 goto out_free_dxe_ctl; 300 } 301 302 ret = wcn36xx_smd_load_nv(wcn); 303 if (ret) { 304 wcn36xx_err("Failed to push NV to chip\n"); 305 goto out_free_smd_buf; 306 } 307 308 ret = wcn36xx_smd_start(wcn); 309 if (ret) { 310 wcn36xx_err("Failed to start chip\n"); 311 goto out_free_smd_buf; 312 } 313 314 if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) { 315 ret = wcn36xx_smd_feature_caps_exchange(wcn); 316 if (ret) 317 wcn36xx_warn("Exchange feature caps failed\n"); 318 else 319 wcn36xx_feat_caps_info(wcn); 320 } 321 322 /* DMA channel initialization */ 323 ret = wcn36xx_dxe_init(wcn); 324 if (ret) { 325 wcn36xx_err("DXE init failed\n"); 326 goto out_smd_stop; 327 } 328 329 wcn36xx_debugfs_init(wcn); 330 331 INIT_LIST_HEAD(&wcn->vif_list); 332 spin_lock_init(&wcn->dxe_lock); 333 334 return 0; 335 336 out_smd_stop: 337 wcn36xx_smd_stop(wcn); 338 out_free_smd_buf: 339 kfree(wcn->hal_buf); 340 out_free_dxe_ctl: 341 wcn36xx_dxe_free_ctl_blks(wcn); 342 out_free_dxe_pool: 343 wcn36xx_dxe_free_mem_pools(wcn); 344 out_smd_close: 345 wcn36xx_smd_close(wcn); 346 out_err: 347 return ret; 348 } 349 350 static void wcn36xx_stop(struct ieee80211_hw *hw) 351 { 352 struct wcn36xx *wcn = hw->priv; 353 354 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac stop\n"); 355 356 wcn36xx_debugfs_exit(wcn); 357 wcn36xx_smd_stop(wcn); 358 wcn36xx_dxe_deinit(wcn); 359 wcn36xx_smd_close(wcn); 360 361 wcn36xx_dxe_free_mem_pools(wcn); 362 wcn36xx_dxe_free_ctl_blks(wcn); 363 364 kfree(wcn->hal_buf); 365 } 366 367 static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed) 368 { 369 struct wcn36xx *wcn = hw->priv; 370 struct ieee80211_vif *vif = NULL; 371 struct wcn36xx_vif *tmp; 372 373 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed); 374 375 mutex_lock(&wcn->conf_mutex); 376 377 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) { 378 int ch = WCN36XX_HW_CHANNEL(wcn); 379 wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d\n", 380 ch); 381 list_for_each_entry(tmp, &wcn->vif_list, list) { 382 vif = wcn36xx_priv_to_vif(tmp); 383 wcn36xx_smd_switch_channel(wcn, vif, ch); 384 } 385 } 386 387 mutex_unlock(&wcn->conf_mutex); 388 389 return 0; 390 } 391 392 static void wcn36xx_configure_filter(struct ieee80211_hw *hw, 393 unsigned int changed, 394 unsigned int *total, u64 multicast) 395 { 396 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp; 397 struct wcn36xx *wcn = hw->priv; 398 struct wcn36xx_vif *tmp; 399 struct ieee80211_vif *vif = NULL; 400 401 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac configure filter\n"); 402 403 mutex_lock(&wcn->conf_mutex); 404 405 *total &= FIF_ALLMULTI; 406 407 fp = (void *)(unsigned long)multicast; 408 list_for_each_entry(tmp, &wcn->vif_list, list) { 409 vif = wcn36xx_priv_to_vif(tmp); 410 411 /* FW handles MC filtering only when connected as STA */ 412 if (*total & FIF_ALLMULTI) 413 wcn36xx_smd_set_mc_list(wcn, vif, NULL); 414 else if (NL80211_IFTYPE_STATION == vif->type && tmp->sta_assoc) 415 wcn36xx_smd_set_mc_list(wcn, vif, fp); 416 } 417 418 mutex_unlock(&wcn->conf_mutex); 419 kfree(fp); 420 } 421 422 static u64 wcn36xx_prepare_multicast(struct ieee80211_hw *hw, 423 struct netdev_hw_addr_list *mc_list) 424 { 425 struct wcn36xx_hal_rcv_flt_mc_addr_list_type *fp; 426 struct netdev_hw_addr *ha; 427 428 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac prepare multicast list\n"); 429 fp = kzalloc(sizeof(*fp), GFP_ATOMIC); 430 if (!fp) { 431 wcn36xx_err("Out of memory setting filters.\n"); 432 return 0; 433 } 434 435 fp->mc_addr_count = 0; 436 /* update multicast filtering parameters */ 437 if (netdev_hw_addr_list_count(mc_list) <= 438 WCN36XX_HAL_MAX_NUM_MULTICAST_ADDRESS) { 439 netdev_hw_addr_list_for_each(ha, mc_list) { 440 memcpy(fp->mc_addr[fp->mc_addr_count], 441 ha->addr, ETH_ALEN); 442 fp->mc_addr_count++; 443 } 444 } 445 446 return (u64)(unsigned long)fp; 447 } 448 449 static void wcn36xx_tx(struct ieee80211_hw *hw, 450 struct ieee80211_tx_control *control, 451 struct sk_buff *skb) 452 { 453 struct wcn36xx *wcn = hw->priv; 454 struct wcn36xx_sta *sta_priv = NULL; 455 456 if (control->sta) 457 sta_priv = wcn36xx_sta_to_priv(control->sta); 458 459 if (wcn36xx_start_tx(wcn, sta_priv, skb)) 460 ieee80211_free_txskb(wcn->hw, skb); 461 } 462 463 static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, 464 struct ieee80211_vif *vif, 465 struct ieee80211_sta *sta, 466 struct ieee80211_key_conf *key_conf) 467 { 468 struct wcn36xx *wcn = hw->priv; 469 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 470 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta); 471 int ret = 0; 472 u8 key[WLAN_MAX_KEY_LEN]; 473 474 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 set key\n"); 475 wcn36xx_dbg(WCN36XX_DBG_MAC, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x\n", 476 cmd, key_conf->cipher, key_conf->keyidx, 477 key_conf->keylen, key_conf->flags); 478 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "KEY: ", 479 key_conf->key, 480 key_conf->keylen); 481 482 mutex_lock(&wcn->conf_mutex); 483 484 switch (key_conf->cipher) { 485 case WLAN_CIPHER_SUITE_WEP40: 486 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40; 487 break; 488 case WLAN_CIPHER_SUITE_WEP104: 489 vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40; 490 break; 491 case WLAN_CIPHER_SUITE_CCMP: 492 vif_priv->encrypt_type = WCN36XX_HAL_ED_CCMP; 493 break; 494 case WLAN_CIPHER_SUITE_TKIP: 495 vif_priv->encrypt_type = WCN36XX_HAL_ED_TKIP; 496 break; 497 default: 498 wcn36xx_err("Unsupported key type 0x%x\n", 499 key_conf->cipher); 500 ret = -EOPNOTSUPP; 501 goto out; 502 } 503 504 switch (cmd) { 505 case SET_KEY: 506 if (WCN36XX_HAL_ED_TKIP == vif_priv->encrypt_type) { 507 /* 508 * Supplicant is sending key in the wrong order: 509 * Temporal Key (16 b) - TX MIC (8 b) - RX MIC (8 b) 510 * but HW expects it to be in the order as described in 511 * IEEE 802.11 spec (see chapter 11.7) like this: 512 * Temporal Key (16 b) - RX MIC (8 b) - TX MIC (8 b) 513 */ 514 memcpy(key, key_conf->key, 16); 515 memcpy(key + 16, key_conf->key + 24, 8); 516 memcpy(key + 24, key_conf->key + 16, 8); 517 } else { 518 memcpy(key, key_conf->key, key_conf->keylen); 519 } 520 521 if (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags) { 522 sta_priv->is_data_encrypted = true; 523 /* Reconfigure bss with encrypt_type */ 524 if (NL80211_IFTYPE_STATION == vif->type) 525 wcn36xx_smd_config_bss(wcn, 526 vif, 527 sta, 528 sta->addr, 529 true); 530 531 wcn36xx_smd_set_stakey(wcn, 532 vif_priv->encrypt_type, 533 key_conf->keyidx, 534 key_conf->keylen, 535 key, 536 get_sta_index(vif, sta_priv)); 537 } else { 538 wcn36xx_smd_set_bsskey(wcn, 539 vif_priv->encrypt_type, 540 key_conf->keyidx, 541 key_conf->keylen, 542 key); 543 if ((WLAN_CIPHER_SUITE_WEP40 == key_conf->cipher) || 544 (WLAN_CIPHER_SUITE_WEP104 == key_conf->cipher)) { 545 sta_priv->is_data_encrypted = true; 546 wcn36xx_smd_set_stakey(wcn, 547 vif_priv->encrypt_type, 548 key_conf->keyidx, 549 key_conf->keylen, 550 key, 551 get_sta_index(vif, sta_priv)); 552 } 553 } 554 break; 555 case DISABLE_KEY: 556 if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) { 557 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE; 558 wcn36xx_smd_remove_bsskey(wcn, 559 vif_priv->encrypt_type, 560 key_conf->keyidx); 561 } else { 562 sta_priv->is_data_encrypted = false; 563 /* do not remove key if disassociated */ 564 if (sta_priv->aid) 565 wcn36xx_smd_remove_stakey(wcn, 566 vif_priv->encrypt_type, 567 key_conf->keyidx, 568 get_sta_index(vif, sta_priv)); 569 } 570 break; 571 default: 572 wcn36xx_err("Unsupported key cmd 0x%x\n", cmd); 573 ret = -EOPNOTSUPP; 574 goto out; 575 } 576 577 out: 578 mutex_unlock(&wcn->conf_mutex); 579 580 return ret; 581 } 582 583 static void wcn36xx_hw_scan_worker(struct work_struct *work) 584 { 585 struct wcn36xx *wcn = container_of(work, struct wcn36xx, scan_work); 586 struct cfg80211_scan_request *req = wcn->scan_req; 587 u8 channels[WCN36XX_HAL_PNO_MAX_NETW_CHANNELS_EX]; 588 struct cfg80211_scan_info scan_info = {}; 589 bool aborted = false; 590 int i; 591 592 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 scan %d channels worker\n", req->n_channels); 593 594 for (i = 0; i < req->n_channels; i++) 595 channels[i] = req->channels[i]->hw_value; 596 597 wcn36xx_smd_update_scan_params(wcn, channels, req->n_channels); 598 599 wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN); 600 for (i = 0; i < req->n_channels; i++) { 601 mutex_lock(&wcn->scan_lock); 602 aborted = wcn->scan_aborted; 603 mutex_unlock(&wcn->scan_lock); 604 605 if (aborted) 606 break; 607 608 wcn->scan_freq = req->channels[i]->center_freq; 609 wcn->scan_band = req->channels[i]->band; 610 611 wcn36xx_smd_start_scan(wcn, req->channels[i]->hw_value); 612 msleep(30); 613 wcn36xx_smd_end_scan(wcn, req->channels[i]->hw_value); 614 615 wcn->scan_freq = 0; 616 } 617 wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN); 618 619 scan_info.aborted = aborted; 620 ieee80211_scan_completed(wcn->hw, &scan_info); 621 622 mutex_lock(&wcn->scan_lock); 623 wcn->scan_req = NULL; 624 mutex_unlock(&wcn->scan_lock); 625 } 626 627 static int wcn36xx_hw_scan(struct ieee80211_hw *hw, 628 struct ieee80211_vif *vif, 629 struct ieee80211_scan_request *hw_req) 630 { 631 struct wcn36xx *wcn = hw->priv; 632 mutex_lock(&wcn->scan_lock); 633 if (wcn->scan_req) { 634 mutex_unlock(&wcn->scan_lock); 635 return -EBUSY; 636 } 637 638 wcn->scan_aborted = false; 639 wcn->scan_req = &hw_req->req; 640 641 mutex_unlock(&wcn->scan_lock); 642 643 if (!get_feat_caps(wcn->fw_feat_caps, SCAN_OFFLOAD)) { 644 /* legacy manual/sw scan */ 645 schedule_work(&wcn->scan_work); 646 return 0; 647 } 648 649 return wcn36xx_smd_start_hw_scan(wcn, vif, &hw_req->req); 650 } 651 652 static void wcn36xx_cancel_hw_scan(struct ieee80211_hw *hw, 653 struct ieee80211_vif *vif) 654 { 655 struct wcn36xx *wcn = hw->priv; 656 657 if (!wcn36xx_smd_stop_hw_scan(wcn)) { 658 struct cfg80211_scan_info scan_info = { .aborted = true }; 659 660 ieee80211_scan_completed(wcn->hw, &scan_info); 661 } 662 663 mutex_lock(&wcn->scan_lock); 664 wcn->scan_aborted = true; 665 mutex_unlock(&wcn->scan_lock); 666 667 cancel_work_sync(&wcn->scan_work); 668 } 669 670 static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta, 671 enum nl80211_band band) 672 { 673 int i, size; 674 u16 *rates_table; 675 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta); 676 u32 rates = sta->supp_rates[band]; 677 678 memset(&sta_priv->supported_rates, 0, 679 sizeof(sta_priv->supported_rates)); 680 sta_priv->supported_rates.op_rate_mode = STA_11n; 681 682 size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates); 683 rates_table = sta_priv->supported_rates.dsss_rates; 684 if (band == NL80211_BAND_2GHZ) { 685 for (i = 0; i < size; i++) { 686 if (rates & 0x01) { 687 rates_table[i] = wcn_2ghz_rates[i].hw_value; 688 rates = rates >> 1; 689 } 690 } 691 } 692 693 size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates); 694 rates_table = sta_priv->supported_rates.ofdm_rates; 695 for (i = 0; i < size; i++) { 696 if (rates & 0x01) { 697 rates_table[i] = wcn_5ghz_rates[i].hw_value; 698 rates = rates >> 1; 699 } 700 } 701 702 if (sta->ht_cap.ht_supported) { 703 BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) > 704 sizeof(sta_priv->supported_rates.supported_mcs_set)); 705 memcpy(sta_priv->supported_rates.supported_mcs_set, 706 sta->ht_cap.mcs.rx_mask, 707 sizeof(sta->ht_cap.mcs.rx_mask)); 708 } 709 } 710 void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates) 711 { 712 u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = { 713 HW_RATE_INDEX_6MBPS, 714 HW_RATE_INDEX_9MBPS, 715 HW_RATE_INDEX_12MBPS, 716 HW_RATE_INDEX_18MBPS, 717 HW_RATE_INDEX_24MBPS, 718 HW_RATE_INDEX_36MBPS, 719 HW_RATE_INDEX_48MBPS, 720 HW_RATE_INDEX_54MBPS 721 }; 722 u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = { 723 HW_RATE_INDEX_1MBPS, 724 HW_RATE_INDEX_2MBPS, 725 HW_RATE_INDEX_5_5MBPS, 726 HW_RATE_INDEX_11MBPS 727 }; 728 729 rates->op_rate_mode = STA_11n; 730 memcpy(rates->dsss_rates, dsss_rates, 731 sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES); 732 memcpy(rates->ofdm_rates, ofdm_rates, 733 sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES); 734 rates->supported_mcs_set[0] = 0xFF; 735 } 736 static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw, 737 struct ieee80211_vif *vif, 738 struct ieee80211_bss_conf *bss_conf, 739 u32 changed) 740 { 741 struct wcn36xx *wcn = hw->priv; 742 struct sk_buff *skb = NULL; 743 u16 tim_off, tim_len; 744 enum wcn36xx_hal_link_state link_state; 745 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 746 747 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n", 748 vif, changed); 749 750 mutex_lock(&wcn->conf_mutex); 751 752 if (changed & BSS_CHANGED_BEACON_INFO) { 753 wcn36xx_dbg(WCN36XX_DBG_MAC, 754 "mac bss changed dtim period %d\n", 755 bss_conf->dtim_period); 756 757 vif_priv->dtim_period = bss_conf->dtim_period; 758 } 759 760 if (changed & BSS_CHANGED_PS) { 761 wcn36xx_dbg(WCN36XX_DBG_MAC, 762 "mac bss PS set %d\n", 763 bss_conf->ps); 764 if (bss_conf->ps) { 765 wcn36xx_pmc_enter_bmps_state(wcn, vif); 766 } else { 767 wcn36xx_pmc_exit_bmps_state(wcn, vif); 768 } 769 } 770 771 if (changed & BSS_CHANGED_BSSID) { 772 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n", 773 bss_conf->bssid); 774 775 if (!is_zero_ether_addr(bss_conf->bssid)) { 776 vif_priv->is_joining = true; 777 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX; 778 wcn36xx_smd_join(wcn, bss_conf->bssid, 779 vif->addr, WCN36XX_HW_CHANNEL(wcn)); 780 wcn36xx_smd_config_bss(wcn, vif, NULL, 781 bss_conf->bssid, false); 782 } else { 783 vif_priv->is_joining = false; 784 wcn36xx_smd_delete_bss(wcn, vif); 785 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE; 786 } 787 } 788 789 if (changed & BSS_CHANGED_SSID) { 790 wcn36xx_dbg(WCN36XX_DBG_MAC, 791 "mac bss changed ssid\n"); 792 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ", 793 bss_conf->ssid, bss_conf->ssid_len); 794 795 vif_priv->ssid.length = bss_conf->ssid_len; 796 memcpy(&vif_priv->ssid.ssid, 797 bss_conf->ssid, 798 bss_conf->ssid_len); 799 } 800 801 if (changed & BSS_CHANGED_ASSOC) { 802 vif_priv->is_joining = false; 803 if (bss_conf->assoc) { 804 struct ieee80211_sta *sta; 805 struct wcn36xx_sta *sta_priv; 806 807 wcn36xx_dbg(WCN36XX_DBG_MAC, 808 "mac assoc bss %pM vif %pM AID=%d\n", 809 bss_conf->bssid, 810 vif->addr, 811 bss_conf->aid); 812 813 vif_priv->sta_assoc = true; 814 815 /* 816 * Holding conf_mutex ensures mutal exclusion with 817 * wcn36xx_sta_remove() and as such ensures that sta 818 * won't be freed while we're operating on it. As such 819 * we do not need to hold the rcu_read_lock(). 820 */ 821 sta = ieee80211_find_sta(vif, bss_conf->bssid); 822 if (!sta) { 823 wcn36xx_err("sta %pM is not found\n", 824 bss_conf->bssid); 825 goto out; 826 } 827 sta_priv = wcn36xx_sta_to_priv(sta); 828 829 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn)); 830 831 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid, 832 vif->addr, 833 WCN36XX_HAL_LINK_POSTASSOC_STATE); 834 wcn36xx_smd_config_bss(wcn, vif, sta, 835 bss_conf->bssid, 836 true); 837 sta_priv->aid = bss_conf->aid; 838 /* 839 * config_sta must be called from because this is the 840 * place where AID is available. 841 */ 842 wcn36xx_smd_config_sta(wcn, vif, sta); 843 } else { 844 wcn36xx_dbg(WCN36XX_DBG_MAC, 845 "disassociated bss %pM vif %pM AID=%d\n", 846 bss_conf->bssid, 847 vif->addr, 848 bss_conf->aid); 849 vif_priv->sta_assoc = false; 850 wcn36xx_smd_set_link_st(wcn, 851 bss_conf->bssid, 852 vif->addr, 853 WCN36XX_HAL_LINK_IDLE_STATE); 854 } 855 } 856 857 if (changed & BSS_CHANGED_AP_PROBE_RESP) { 858 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n"); 859 skb = ieee80211_proberesp_get(hw, vif); 860 if (!skb) { 861 wcn36xx_err("failed to alloc probereq skb\n"); 862 goto out; 863 } 864 865 wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb); 866 dev_kfree_skb(skb); 867 } 868 869 if (changed & BSS_CHANGED_BEACON_ENABLED || 870 changed & BSS_CHANGED_BEACON) { 871 wcn36xx_dbg(WCN36XX_DBG_MAC, 872 "mac bss changed beacon enabled %d\n", 873 bss_conf->enable_beacon); 874 875 if (bss_conf->enable_beacon) { 876 vif_priv->dtim_period = bss_conf->dtim_period; 877 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX; 878 wcn36xx_smd_config_bss(wcn, vif, NULL, 879 vif->addr, false); 880 skb = ieee80211_beacon_get_tim(hw, vif, &tim_off, 881 &tim_len); 882 if (!skb) { 883 wcn36xx_err("failed to alloc beacon skb\n"); 884 goto out; 885 } 886 wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0); 887 dev_kfree_skb(skb); 888 889 if (vif->type == NL80211_IFTYPE_ADHOC || 890 vif->type == NL80211_IFTYPE_MESH_POINT) 891 link_state = WCN36XX_HAL_LINK_IBSS_STATE; 892 else 893 link_state = WCN36XX_HAL_LINK_AP_STATE; 894 895 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr, 896 link_state); 897 } else { 898 wcn36xx_smd_delete_bss(wcn, vif); 899 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr, 900 WCN36XX_HAL_LINK_IDLE_STATE); 901 } 902 } 903 out: 904 905 mutex_unlock(&wcn->conf_mutex); 906 907 return; 908 } 909 910 /* this is required when using IEEE80211_HW_HAS_RATE_CONTROL */ 911 static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 912 { 913 struct wcn36xx *wcn = hw->priv; 914 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value); 915 916 mutex_lock(&wcn->conf_mutex); 917 wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value); 918 mutex_unlock(&wcn->conf_mutex); 919 920 return 0; 921 } 922 923 static void wcn36xx_remove_interface(struct ieee80211_hw *hw, 924 struct ieee80211_vif *vif) 925 { 926 struct wcn36xx *wcn = hw->priv; 927 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 928 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif); 929 930 mutex_lock(&wcn->conf_mutex); 931 932 list_del(&vif_priv->list); 933 wcn36xx_smd_delete_sta_self(wcn, vif->addr); 934 935 mutex_unlock(&wcn->conf_mutex); 936 } 937 938 static int wcn36xx_add_interface(struct ieee80211_hw *hw, 939 struct ieee80211_vif *vif) 940 { 941 struct wcn36xx *wcn = hw->priv; 942 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 943 944 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n", 945 vif, vif->type); 946 947 if (!(NL80211_IFTYPE_STATION == vif->type || 948 NL80211_IFTYPE_AP == vif->type || 949 NL80211_IFTYPE_ADHOC == vif->type || 950 NL80211_IFTYPE_MESH_POINT == vif->type)) { 951 wcn36xx_warn("Unsupported interface type requested: %d\n", 952 vif->type); 953 return -EOPNOTSUPP; 954 } 955 956 mutex_lock(&wcn->conf_mutex); 957 958 list_add(&vif_priv->list, &wcn->vif_list); 959 wcn36xx_smd_add_sta_self(wcn, vif); 960 961 mutex_unlock(&wcn->conf_mutex); 962 963 return 0; 964 } 965 966 static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 967 struct ieee80211_sta *sta) 968 { 969 struct wcn36xx *wcn = hw->priv; 970 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 971 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta); 972 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n", 973 vif, sta->addr); 974 975 mutex_lock(&wcn->conf_mutex); 976 977 spin_lock_init(&sta_priv->ampdu_lock); 978 sta_priv->vif = vif_priv; 979 /* 980 * For STA mode HW will be configured on BSS_CHANGED_ASSOC because 981 * at this stage AID is not available yet. 982 */ 983 if (NL80211_IFTYPE_STATION != vif->type) { 984 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn)); 985 sta_priv->aid = sta->aid; 986 wcn36xx_smd_config_sta(wcn, vif, sta); 987 } 988 989 mutex_unlock(&wcn->conf_mutex); 990 991 return 0; 992 } 993 994 static int wcn36xx_sta_remove(struct ieee80211_hw *hw, 995 struct ieee80211_vif *vif, 996 struct ieee80211_sta *sta) 997 { 998 struct wcn36xx *wcn = hw->priv; 999 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta); 1000 1001 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n", 1002 vif, sta->addr, sta_priv->sta_index); 1003 1004 mutex_lock(&wcn->conf_mutex); 1005 1006 wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index); 1007 sta_priv->vif = NULL; 1008 1009 mutex_unlock(&wcn->conf_mutex); 1010 1011 return 0; 1012 } 1013 1014 #ifdef CONFIG_PM 1015 1016 static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow) 1017 { 1018 struct wcn36xx *wcn = hw->priv; 1019 1020 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n"); 1021 1022 flush_workqueue(wcn->hal_ind_wq); 1023 wcn36xx_smd_set_power_params(wcn, true); 1024 return 0; 1025 } 1026 1027 static int wcn36xx_resume(struct ieee80211_hw *hw) 1028 { 1029 struct wcn36xx *wcn = hw->priv; 1030 1031 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n"); 1032 1033 flush_workqueue(wcn->hal_ind_wq); 1034 wcn36xx_smd_set_power_params(wcn, false); 1035 return 0; 1036 } 1037 1038 #endif 1039 1040 static int wcn36xx_ampdu_action(struct ieee80211_hw *hw, 1041 struct ieee80211_vif *vif, 1042 struct ieee80211_ampdu_params *params) 1043 { 1044 struct wcn36xx *wcn = hw->priv; 1045 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(params->sta); 1046 struct ieee80211_sta *sta = params->sta; 1047 enum ieee80211_ampdu_mlme_action action = params->action; 1048 u16 tid = params->tid; 1049 u16 *ssn = ¶ms->ssn; 1050 1051 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n", 1052 action, tid); 1053 1054 mutex_lock(&wcn->conf_mutex); 1055 1056 switch (action) { 1057 case IEEE80211_AMPDU_RX_START: 1058 sta_priv->tid = tid; 1059 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0, 1060 get_sta_index(vif, sta_priv)); 1061 wcn36xx_smd_add_ba(wcn); 1062 wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv)); 1063 break; 1064 case IEEE80211_AMPDU_RX_STOP: 1065 wcn36xx_smd_del_ba(wcn, tid, get_sta_index(vif, sta_priv)); 1066 break; 1067 case IEEE80211_AMPDU_TX_START: 1068 spin_lock_bh(&sta_priv->ampdu_lock); 1069 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_START; 1070 spin_unlock_bh(&sta_priv->ampdu_lock); 1071 1072 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); 1073 break; 1074 case IEEE80211_AMPDU_TX_OPERATIONAL: 1075 spin_lock_bh(&sta_priv->ampdu_lock); 1076 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_OPERATIONAL; 1077 spin_unlock_bh(&sta_priv->ampdu_lock); 1078 1079 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 1, 1080 get_sta_index(vif, sta_priv)); 1081 break; 1082 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1083 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1084 case IEEE80211_AMPDU_TX_STOP_CONT: 1085 spin_lock_bh(&sta_priv->ampdu_lock); 1086 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_NONE; 1087 spin_unlock_bh(&sta_priv->ampdu_lock); 1088 1089 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 1090 break; 1091 default: 1092 wcn36xx_err("Unknown AMPDU action\n"); 1093 } 1094 1095 mutex_unlock(&wcn->conf_mutex); 1096 1097 return 0; 1098 } 1099 1100 static const struct ieee80211_ops wcn36xx_ops = { 1101 .start = wcn36xx_start, 1102 .stop = wcn36xx_stop, 1103 .add_interface = wcn36xx_add_interface, 1104 .remove_interface = wcn36xx_remove_interface, 1105 #ifdef CONFIG_PM 1106 .suspend = wcn36xx_suspend, 1107 .resume = wcn36xx_resume, 1108 #endif 1109 .config = wcn36xx_config, 1110 .prepare_multicast = wcn36xx_prepare_multicast, 1111 .configure_filter = wcn36xx_configure_filter, 1112 .tx = wcn36xx_tx, 1113 .set_key = wcn36xx_set_key, 1114 .hw_scan = wcn36xx_hw_scan, 1115 .cancel_hw_scan = wcn36xx_cancel_hw_scan, 1116 .bss_info_changed = wcn36xx_bss_info_changed, 1117 .set_rts_threshold = wcn36xx_set_rts_threshold, 1118 .sta_add = wcn36xx_sta_add, 1119 .sta_remove = wcn36xx_sta_remove, 1120 .ampdu_action = wcn36xx_ampdu_action, 1121 }; 1122 1123 static int wcn36xx_init_ieee80211(struct wcn36xx *wcn) 1124 { 1125 int ret = 0; 1126 1127 static const u32 cipher_suites[] = { 1128 WLAN_CIPHER_SUITE_WEP40, 1129 WLAN_CIPHER_SUITE_WEP104, 1130 WLAN_CIPHER_SUITE_TKIP, 1131 WLAN_CIPHER_SUITE_CCMP, 1132 }; 1133 1134 ieee80211_hw_set(wcn->hw, TIMING_BEACON_ONLY); 1135 ieee80211_hw_set(wcn->hw, AMPDU_AGGREGATION); 1136 ieee80211_hw_set(wcn->hw, CONNECTION_MONITOR); 1137 ieee80211_hw_set(wcn->hw, SUPPORTS_PS); 1138 ieee80211_hw_set(wcn->hw, SIGNAL_DBM); 1139 ieee80211_hw_set(wcn->hw, HAS_RATE_CONTROL); 1140 ieee80211_hw_set(wcn->hw, SINGLE_SCAN_ON_ALL_BANDS); 1141 1142 wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 1143 BIT(NL80211_IFTYPE_AP) | 1144 BIT(NL80211_IFTYPE_ADHOC) | 1145 BIT(NL80211_IFTYPE_MESH_POINT); 1146 1147 wcn->hw->wiphy->bands[NL80211_BAND_2GHZ] = &wcn_band_2ghz; 1148 if (wcn->rf_id != RF_IRIS_WCN3620) 1149 wcn->hw->wiphy->bands[NL80211_BAND_5GHZ] = &wcn_band_5ghz; 1150 1151 wcn->hw->wiphy->max_scan_ssids = WCN36XX_MAX_SCAN_SSIDS; 1152 wcn->hw->wiphy->max_scan_ie_len = WCN36XX_MAX_SCAN_IE_LEN; 1153 1154 wcn->hw->wiphy->cipher_suites = cipher_suites; 1155 wcn->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); 1156 1157 wcn->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; 1158 1159 #ifdef CONFIG_PM 1160 wcn->hw->wiphy->wowlan = &wowlan_support; 1161 #endif 1162 1163 wcn->hw->max_listen_interval = 200; 1164 1165 wcn->hw->queues = 4; 1166 1167 SET_IEEE80211_DEV(wcn->hw, wcn->dev); 1168 1169 wcn->hw->sta_data_size = sizeof(struct wcn36xx_sta); 1170 wcn->hw->vif_data_size = sizeof(struct wcn36xx_vif); 1171 1172 wiphy_ext_feature_set(wcn->hw->wiphy, 1173 NL80211_EXT_FEATURE_CQM_RSSI_LIST); 1174 1175 return ret; 1176 } 1177 1178 static int wcn36xx_platform_get_resources(struct wcn36xx *wcn, 1179 struct platform_device *pdev) 1180 { 1181 struct device_node *mmio_node; 1182 struct device_node *iris_node; 1183 struct resource *res; 1184 int index; 1185 int ret; 1186 1187 /* Set TX IRQ */ 1188 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "tx"); 1189 if (!res) { 1190 wcn36xx_err("failed to get tx_irq\n"); 1191 return -ENOENT; 1192 } 1193 wcn->tx_irq = res->start; 1194 1195 /* Set RX IRQ */ 1196 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "rx"); 1197 if (!res) { 1198 wcn36xx_err("failed to get rx_irq\n"); 1199 return -ENOENT; 1200 } 1201 wcn->rx_irq = res->start; 1202 1203 /* Acquire SMSM tx enable handle */ 1204 wcn->tx_enable_state = qcom_smem_state_get(&pdev->dev, 1205 "tx-enable", &wcn->tx_enable_state_bit); 1206 if (IS_ERR(wcn->tx_enable_state)) { 1207 wcn36xx_err("failed to get tx-enable state\n"); 1208 return PTR_ERR(wcn->tx_enable_state); 1209 } 1210 1211 /* Acquire SMSM tx rings empty handle */ 1212 wcn->tx_rings_empty_state = qcom_smem_state_get(&pdev->dev, 1213 "tx-rings-empty", &wcn->tx_rings_empty_state_bit); 1214 if (IS_ERR(wcn->tx_rings_empty_state)) { 1215 wcn36xx_err("failed to get tx-rings-empty state\n"); 1216 return PTR_ERR(wcn->tx_rings_empty_state); 1217 } 1218 1219 mmio_node = of_parse_phandle(pdev->dev.parent->of_node, "qcom,mmio", 0); 1220 if (!mmio_node) { 1221 wcn36xx_err("failed to acquire qcom,mmio reference\n"); 1222 return -EINVAL; 1223 } 1224 1225 wcn->is_pronto = !!of_device_is_compatible(mmio_node, "qcom,pronto"); 1226 1227 /* Map the CCU memory */ 1228 index = of_property_match_string(mmio_node, "reg-names", "ccu"); 1229 wcn->ccu_base = of_iomap(mmio_node, index); 1230 if (!wcn->ccu_base) { 1231 wcn36xx_err("failed to map ccu memory\n"); 1232 ret = -ENOMEM; 1233 goto put_mmio_node; 1234 } 1235 1236 /* Map the DXE memory */ 1237 index = of_property_match_string(mmio_node, "reg-names", "dxe"); 1238 wcn->dxe_base = of_iomap(mmio_node, index); 1239 if (!wcn->dxe_base) { 1240 wcn36xx_err("failed to map dxe memory\n"); 1241 ret = -ENOMEM; 1242 goto unmap_ccu; 1243 } 1244 1245 /* External RF module */ 1246 iris_node = of_get_child_by_name(mmio_node, "iris"); 1247 if (iris_node) { 1248 if (of_device_is_compatible(iris_node, "qcom,wcn3620")) 1249 wcn->rf_id = RF_IRIS_WCN3620; 1250 of_node_put(iris_node); 1251 } 1252 1253 of_node_put(mmio_node); 1254 return 0; 1255 1256 unmap_ccu: 1257 iounmap(wcn->ccu_base); 1258 put_mmio_node: 1259 of_node_put(mmio_node); 1260 return ret; 1261 } 1262 1263 static int wcn36xx_probe(struct platform_device *pdev) 1264 { 1265 struct ieee80211_hw *hw; 1266 struct wcn36xx *wcn; 1267 void *wcnss; 1268 int ret; 1269 const u8 *addr; 1270 1271 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe\n"); 1272 1273 wcnss = dev_get_drvdata(pdev->dev.parent); 1274 1275 hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops); 1276 if (!hw) { 1277 wcn36xx_err("failed to alloc hw\n"); 1278 ret = -ENOMEM; 1279 goto out_err; 1280 } 1281 platform_set_drvdata(pdev, hw); 1282 wcn = hw->priv; 1283 wcn->hw = hw; 1284 wcn->dev = &pdev->dev; 1285 mutex_init(&wcn->conf_mutex); 1286 mutex_init(&wcn->hal_mutex); 1287 mutex_init(&wcn->scan_lock); 1288 1289 INIT_WORK(&wcn->scan_work, wcn36xx_hw_scan_worker); 1290 1291 wcn->smd_channel = qcom_wcnss_open_channel(wcnss, "WLAN_CTRL", wcn36xx_smd_rsp_process, hw); 1292 if (IS_ERR(wcn->smd_channel)) { 1293 wcn36xx_err("failed to open WLAN_CTRL channel\n"); 1294 ret = PTR_ERR(wcn->smd_channel); 1295 goto out_wq; 1296 } 1297 1298 addr = of_get_property(pdev->dev.of_node, "local-mac-address", &ret); 1299 if (addr && ret != ETH_ALEN) { 1300 wcn36xx_err("invalid local-mac-address\n"); 1301 ret = -EINVAL; 1302 goto out_wq; 1303 } else if (addr) { 1304 wcn36xx_info("mac address: %pM\n", addr); 1305 SET_IEEE80211_PERM_ADDR(wcn->hw, addr); 1306 } 1307 1308 ret = wcn36xx_platform_get_resources(wcn, pdev); 1309 if (ret) 1310 goto out_wq; 1311 1312 wcn36xx_init_ieee80211(wcn); 1313 ret = ieee80211_register_hw(wcn->hw); 1314 if (ret) 1315 goto out_unmap; 1316 1317 return 0; 1318 1319 out_unmap: 1320 iounmap(wcn->ccu_base); 1321 iounmap(wcn->dxe_base); 1322 out_wq: 1323 ieee80211_free_hw(hw); 1324 out_err: 1325 return ret; 1326 } 1327 1328 static int wcn36xx_remove(struct platform_device *pdev) 1329 { 1330 struct ieee80211_hw *hw = platform_get_drvdata(pdev); 1331 struct wcn36xx *wcn = hw->priv; 1332 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n"); 1333 1334 release_firmware(wcn->nv); 1335 1336 ieee80211_unregister_hw(hw); 1337 1338 qcom_smem_state_put(wcn->tx_enable_state); 1339 qcom_smem_state_put(wcn->tx_rings_empty_state); 1340 1341 rpmsg_destroy_ept(wcn->smd_channel); 1342 1343 iounmap(wcn->dxe_base); 1344 iounmap(wcn->ccu_base); 1345 1346 mutex_destroy(&wcn->hal_mutex); 1347 ieee80211_free_hw(hw); 1348 1349 return 0; 1350 } 1351 1352 static const struct of_device_id wcn36xx_of_match[] = { 1353 { .compatible = "qcom,wcnss-wlan" }, 1354 {} 1355 }; 1356 MODULE_DEVICE_TABLE(of, wcn36xx_of_match); 1357 1358 static struct platform_driver wcn36xx_driver = { 1359 .probe = wcn36xx_probe, 1360 .remove = wcn36xx_remove, 1361 .driver = { 1362 .name = "wcn36xx", 1363 .of_match_table = wcn36xx_of_match, 1364 }, 1365 }; 1366 1367 module_platform_driver(wcn36xx_driver); 1368 1369 MODULE_LICENSE("Dual BSD/GPL"); 1370 MODULE_AUTHOR("Eugene Krasnikov k.eugene.e@gmail.com"); 1371 MODULE_FIRMWARE(WLAN_NV_FILE); 1372