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 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; 644 645 mutex_lock(&wcn->scan_lock); 646 if (wcn->scan_req) { 647 mutex_unlock(&wcn->scan_lock); 648 return -EBUSY; 649 } 650 651 wcn->scan_aborted = false; 652 wcn->scan_req = &hw_req->req; 653 mutex_unlock(&wcn->scan_lock); 654 655 schedule_work(&wcn->scan_work); 656 657 return 0; 658 } 659 660 static void wcn36xx_cancel_hw_scan(struct ieee80211_hw *hw, 661 struct ieee80211_vif *vif) 662 { 663 struct wcn36xx *wcn = hw->priv; 664 665 mutex_lock(&wcn->scan_lock); 666 wcn->scan_aborted = true; 667 mutex_unlock(&wcn->scan_lock); 668 669 cancel_work_sync(&wcn->scan_work); 670 } 671 672 static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta, 673 enum nl80211_band band) 674 { 675 int i, size; 676 u16 *rates_table; 677 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta); 678 u32 rates = sta->supp_rates[band]; 679 680 memset(&sta_priv->supported_rates, 0, 681 sizeof(sta_priv->supported_rates)); 682 sta_priv->supported_rates.op_rate_mode = STA_11n; 683 684 size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates); 685 rates_table = sta_priv->supported_rates.dsss_rates; 686 if (band == NL80211_BAND_2GHZ) { 687 for (i = 0; i < size; i++) { 688 if (rates & 0x01) { 689 rates_table[i] = wcn_2ghz_rates[i].hw_value; 690 rates = rates >> 1; 691 } 692 } 693 } 694 695 size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates); 696 rates_table = sta_priv->supported_rates.ofdm_rates; 697 for (i = 0; i < size; i++) { 698 if (rates & 0x01) { 699 rates_table[i] = wcn_5ghz_rates[i].hw_value; 700 rates = rates >> 1; 701 } 702 } 703 704 if (sta->ht_cap.ht_supported) { 705 BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) > 706 sizeof(sta_priv->supported_rates.supported_mcs_set)); 707 memcpy(sta_priv->supported_rates.supported_mcs_set, 708 sta->ht_cap.mcs.rx_mask, 709 sizeof(sta->ht_cap.mcs.rx_mask)); 710 } 711 } 712 void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates) 713 { 714 u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = { 715 HW_RATE_INDEX_6MBPS, 716 HW_RATE_INDEX_9MBPS, 717 HW_RATE_INDEX_12MBPS, 718 HW_RATE_INDEX_18MBPS, 719 HW_RATE_INDEX_24MBPS, 720 HW_RATE_INDEX_36MBPS, 721 HW_RATE_INDEX_48MBPS, 722 HW_RATE_INDEX_54MBPS 723 }; 724 u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = { 725 HW_RATE_INDEX_1MBPS, 726 HW_RATE_INDEX_2MBPS, 727 HW_RATE_INDEX_5_5MBPS, 728 HW_RATE_INDEX_11MBPS 729 }; 730 731 rates->op_rate_mode = STA_11n; 732 memcpy(rates->dsss_rates, dsss_rates, 733 sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES); 734 memcpy(rates->ofdm_rates, ofdm_rates, 735 sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES); 736 rates->supported_mcs_set[0] = 0xFF; 737 } 738 static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw, 739 struct ieee80211_vif *vif, 740 struct ieee80211_bss_conf *bss_conf, 741 u32 changed) 742 { 743 struct wcn36xx *wcn = hw->priv; 744 struct sk_buff *skb = NULL; 745 u16 tim_off, tim_len; 746 enum wcn36xx_hal_link_state link_state; 747 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 748 749 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n", 750 vif, changed); 751 752 mutex_lock(&wcn->conf_mutex); 753 754 if (changed & BSS_CHANGED_BEACON_INFO) { 755 wcn36xx_dbg(WCN36XX_DBG_MAC, 756 "mac bss changed dtim period %d\n", 757 bss_conf->dtim_period); 758 759 vif_priv->dtim_period = bss_conf->dtim_period; 760 } 761 762 if (changed & BSS_CHANGED_BSSID) { 763 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n", 764 bss_conf->bssid); 765 766 if (!is_zero_ether_addr(bss_conf->bssid)) { 767 vif_priv->is_joining = true; 768 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX; 769 wcn36xx_smd_join(wcn, bss_conf->bssid, 770 vif->addr, WCN36XX_HW_CHANNEL(wcn)); 771 wcn36xx_smd_config_bss(wcn, vif, NULL, 772 bss_conf->bssid, false); 773 } else { 774 vif_priv->is_joining = false; 775 wcn36xx_smd_delete_bss(wcn, vif); 776 vif_priv->encrypt_type = WCN36XX_HAL_ED_NONE; 777 } 778 } 779 780 if (changed & BSS_CHANGED_SSID) { 781 wcn36xx_dbg(WCN36XX_DBG_MAC, 782 "mac bss changed ssid\n"); 783 wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ", 784 bss_conf->ssid, bss_conf->ssid_len); 785 786 vif_priv->ssid.length = bss_conf->ssid_len; 787 memcpy(&vif_priv->ssid.ssid, 788 bss_conf->ssid, 789 bss_conf->ssid_len); 790 } 791 792 if (changed & BSS_CHANGED_ASSOC) { 793 vif_priv->is_joining = false; 794 if (bss_conf->assoc) { 795 struct ieee80211_sta *sta; 796 struct wcn36xx_sta *sta_priv; 797 798 wcn36xx_dbg(WCN36XX_DBG_MAC, 799 "mac assoc bss %pM vif %pM AID=%d\n", 800 bss_conf->bssid, 801 vif->addr, 802 bss_conf->aid); 803 804 vif_priv->sta_assoc = true; 805 806 /* 807 * Holding conf_mutex ensures mutal exclusion with 808 * wcn36xx_sta_remove() and as such ensures that sta 809 * won't be freed while we're operating on it. As such 810 * we do not need to hold the rcu_read_lock(). 811 */ 812 sta = ieee80211_find_sta(vif, bss_conf->bssid); 813 if (!sta) { 814 wcn36xx_err("sta %pM is not found\n", 815 bss_conf->bssid); 816 goto out; 817 } 818 sta_priv = wcn36xx_sta_to_priv(sta); 819 820 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn)); 821 822 wcn36xx_smd_set_link_st(wcn, bss_conf->bssid, 823 vif->addr, 824 WCN36XX_HAL_LINK_POSTASSOC_STATE); 825 wcn36xx_smd_config_bss(wcn, vif, sta, 826 bss_conf->bssid, 827 true); 828 sta_priv->aid = bss_conf->aid; 829 /* 830 * config_sta must be called from because this is the 831 * place where AID is available. 832 */ 833 wcn36xx_smd_config_sta(wcn, vif, sta); 834 } else { 835 wcn36xx_dbg(WCN36XX_DBG_MAC, 836 "disassociated bss %pM vif %pM AID=%d\n", 837 bss_conf->bssid, 838 vif->addr, 839 bss_conf->aid); 840 vif_priv->sta_assoc = false; 841 wcn36xx_smd_set_link_st(wcn, 842 bss_conf->bssid, 843 vif->addr, 844 WCN36XX_HAL_LINK_IDLE_STATE); 845 } 846 } 847 848 if (changed & BSS_CHANGED_AP_PROBE_RESP) { 849 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n"); 850 skb = ieee80211_proberesp_get(hw, vif); 851 if (!skb) { 852 wcn36xx_err("failed to alloc probereq skb\n"); 853 goto out; 854 } 855 856 wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb); 857 dev_kfree_skb(skb); 858 } 859 860 if (changed & BSS_CHANGED_BEACON_ENABLED || 861 changed & BSS_CHANGED_BEACON) { 862 wcn36xx_dbg(WCN36XX_DBG_MAC, 863 "mac bss changed beacon enabled %d\n", 864 bss_conf->enable_beacon); 865 866 if (bss_conf->enable_beacon) { 867 vif_priv->dtim_period = bss_conf->dtim_period; 868 vif_priv->bss_index = WCN36XX_HAL_BSS_INVALID_IDX; 869 wcn36xx_smd_config_bss(wcn, vif, NULL, 870 vif->addr, false); 871 skb = ieee80211_beacon_get_tim(hw, vif, &tim_off, 872 &tim_len); 873 if (!skb) { 874 wcn36xx_err("failed to alloc beacon skb\n"); 875 goto out; 876 } 877 wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0); 878 dev_kfree_skb(skb); 879 880 if (vif->type == NL80211_IFTYPE_ADHOC || 881 vif->type == NL80211_IFTYPE_MESH_POINT) 882 link_state = WCN36XX_HAL_LINK_IBSS_STATE; 883 else 884 link_state = WCN36XX_HAL_LINK_AP_STATE; 885 886 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr, 887 link_state); 888 } else { 889 wcn36xx_smd_delete_bss(wcn, vif); 890 wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr, 891 WCN36XX_HAL_LINK_IDLE_STATE); 892 } 893 } 894 out: 895 896 mutex_unlock(&wcn->conf_mutex); 897 898 return; 899 } 900 901 /* this is required when using IEEE80211_HW_HAS_RATE_CONTROL */ 902 static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value) 903 { 904 struct wcn36xx *wcn = hw->priv; 905 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value); 906 907 mutex_lock(&wcn->conf_mutex); 908 wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value); 909 mutex_unlock(&wcn->conf_mutex); 910 911 return 0; 912 } 913 914 static void wcn36xx_remove_interface(struct ieee80211_hw *hw, 915 struct ieee80211_vif *vif) 916 { 917 struct wcn36xx *wcn = hw->priv; 918 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 919 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif); 920 921 mutex_lock(&wcn->conf_mutex); 922 923 list_del(&vif_priv->list); 924 wcn36xx_smd_delete_sta_self(wcn, vif->addr); 925 926 mutex_unlock(&wcn->conf_mutex); 927 } 928 929 static int wcn36xx_add_interface(struct ieee80211_hw *hw, 930 struct ieee80211_vif *vif) 931 { 932 struct wcn36xx *wcn = hw->priv; 933 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 934 935 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n", 936 vif, vif->type); 937 938 if (!(NL80211_IFTYPE_STATION == vif->type || 939 NL80211_IFTYPE_AP == vif->type || 940 NL80211_IFTYPE_ADHOC == vif->type || 941 NL80211_IFTYPE_MESH_POINT == vif->type)) { 942 wcn36xx_warn("Unsupported interface type requested: %d\n", 943 vif->type); 944 return -EOPNOTSUPP; 945 } 946 947 mutex_lock(&wcn->conf_mutex); 948 949 list_add(&vif_priv->list, &wcn->vif_list); 950 wcn36xx_smd_add_sta_self(wcn, vif); 951 952 mutex_unlock(&wcn->conf_mutex); 953 954 return 0; 955 } 956 957 static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif, 958 struct ieee80211_sta *sta) 959 { 960 struct wcn36xx *wcn = hw->priv; 961 struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); 962 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta); 963 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n", 964 vif, sta->addr); 965 966 mutex_lock(&wcn->conf_mutex); 967 968 spin_lock_init(&sta_priv->ampdu_lock); 969 sta_priv->vif = vif_priv; 970 /* 971 * For STA mode HW will be configured on BSS_CHANGED_ASSOC because 972 * at this stage AID is not available yet. 973 */ 974 if (NL80211_IFTYPE_STATION != vif->type) { 975 wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn)); 976 sta_priv->aid = sta->aid; 977 wcn36xx_smd_config_sta(wcn, vif, sta); 978 } 979 980 mutex_unlock(&wcn->conf_mutex); 981 982 return 0; 983 } 984 985 static int wcn36xx_sta_remove(struct ieee80211_hw *hw, 986 struct ieee80211_vif *vif, 987 struct ieee80211_sta *sta) 988 { 989 struct wcn36xx *wcn = hw->priv; 990 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(sta); 991 992 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n", 993 vif, sta->addr, sta_priv->sta_index); 994 995 mutex_lock(&wcn->conf_mutex); 996 997 wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index); 998 sta_priv->vif = NULL; 999 1000 mutex_unlock(&wcn->conf_mutex); 1001 1002 return 0; 1003 } 1004 1005 #ifdef CONFIG_PM 1006 1007 static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow) 1008 { 1009 struct wcn36xx *wcn = hw->priv; 1010 1011 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n"); 1012 1013 flush_workqueue(wcn->hal_ind_wq); 1014 wcn36xx_smd_set_power_params(wcn, true); 1015 return 0; 1016 } 1017 1018 static int wcn36xx_resume(struct ieee80211_hw *hw) 1019 { 1020 struct wcn36xx *wcn = hw->priv; 1021 1022 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n"); 1023 1024 flush_workqueue(wcn->hal_ind_wq); 1025 wcn36xx_smd_set_power_params(wcn, false); 1026 return 0; 1027 } 1028 1029 #endif 1030 1031 static int wcn36xx_ampdu_action(struct ieee80211_hw *hw, 1032 struct ieee80211_vif *vif, 1033 struct ieee80211_ampdu_params *params) 1034 { 1035 struct wcn36xx *wcn = hw->priv; 1036 struct wcn36xx_sta *sta_priv = wcn36xx_sta_to_priv(params->sta); 1037 struct ieee80211_sta *sta = params->sta; 1038 enum ieee80211_ampdu_mlme_action action = params->action; 1039 u16 tid = params->tid; 1040 u16 *ssn = ¶ms->ssn; 1041 1042 wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n", 1043 action, tid); 1044 1045 mutex_lock(&wcn->conf_mutex); 1046 1047 switch (action) { 1048 case IEEE80211_AMPDU_RX_START: 1049 sta_priv->tid = tid; 1050 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0, 1051 get_sta_index(vif, sta_priv)); 1052 wcn36xx_smd_add_ba(wcn); 1053 wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv)); 1054 break; 1055 case IEEE80211_AMPDU_RX_STOP: 1056 wcn36xx_smd_del_ba(wcn, tid, get_sta_index(vif, sta_priv)); 1057 break; 1058 case IEEE80211_AMPDU_TX_START: 1059 spin_lock_bh(&sta_priv->ampdu_lock); 1060 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_START; 1061 spin_unlock_bh(&sta_priv->ampdu_lock); 1062 1063 ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid); 1064 break; 1065 case IEEE80211_AMPDU_TX_OPERATIONAL: 1066 spin_lock_bh(&sta_priv->ampdu_lock); 1067 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_OPERATIONAL; 1068 spin_unlock_bh(&sta_priv->ampdu_lock); 1069 1070 wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 1, 1071 get_sta_index(vif, sta_priv)); 1072 break; 1073 case IEEE80211_AMPDU_TX_STOP_FLUSH: 1074 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: 1075 case IEEE80211_AMPDU_TX_STOP_CONT: 1076 spin_lock_bh(&sta_priv->ampdu_lock); 1077 sta_priv->ampdu_state[tid] = WCN36XX_AMPDU_NONE; 1078 spin_unlock_bh(&sta_priv->ampdu_lock); 1079 1080 ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid); 1081 break; 1082 default: 1083 wcn36xx_err("Unknown AMPDU action\n"); 1084 } 1085 1086 mutex_unlock(&wcn->conf_mutex); 1087 1088 return 0; 1089 } 1090 1091 static const struct ieee80211_ops wcn36xx_ops = { 1092 .start = wcn36xx_start, 1093 .stop = wcn36xx_stop, 1094 .add_interface = wcn36xx_add_interface, 1095 .remove_interface = wcn36xx_remove_interface, 1096 #ifdef CONFIG_PM 1097 .suspend = wcn36xx_suspend, 1098 .resume = wcn36xx_resume, 1099 #endif 1100 .config = wcn36xx_config, 1101 .prepare_multicast = wcn36xx_prepare_multicast, 1102 .configure_filter = wcn36xx_configure_filter, 1103 .tx = wcn36xx_tx, 1104 .set_key = wcn36xx_set_key, 1105 .hw_scan = wcn36xx_hw_scan, 1106 .cancel_hw_scan = wcn36xx_cancel_hw_scan, 1107 .bss_info_changed = wcn36xx_bss_info_changed, 1108 .set_rts_threshold = wcn36xx_set_rts_threshold, 1109 .sta_add = wcn36xx_sta_add, 1110 .sta_remove = wcn36xx_sta_remove, 1111 .ampdu_action = wcn36xx_ampdu_action, 1112 }; 1113 1114 static int wcn36xx_init_ieee80211(struct wcn36xx *wcn) 1115 { 1116 int ret = 0; 1117 1118 static const u32 cipher_suites[] = { 1119 WLAN_CIPHER_SUITE_WEP40, 1120 WLAN_CIPHER_SUITE_WEP104, 1121 WLAN_CIPHER_SUITE_TKIP, 1122 WLAN_CIPHER_SUITE_CCMP, 1123 }; 1124 1125 ieee80211_hw_set(wcn->hw, TIMING_BEACON_ONLY); 1126 ieee80211_hw_set(wcn->hw, AMPDU_AGGREGATION); 1127 ieee80211_hw_set(wcn->hw, CONNECTION_MONITOR); 1128 ieee80211_hw_set(wcn->hw, SUPPORTS_PS); 1129 ieee80211_hw_set(wcn->hw, SIGNAL_DBM); 1130 ieee80211_hw_set(wcn->hw, HAS_RATE_CONTROL); 1131 ieee80211_hw_set(wcn->hw, SINGLE_SCAN_ON_ALL_BANDS); 1132 1133 wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 1134 BIT(NL80211_IFTYPE_AP) | 1135 BIT(NL80211_IFTYPE_ADHOC) | 1136 BIT(NL80211_IFTYPE_MESH_POINT); 1137 1138 wcn->hw->wiphy->bands[NL80211_BAND_2GHZ] = &wcn_band_2ghz; 1139 if (wcn->rf_id != RF_IRIS_WCN3620) 1140 wcn->hw->wiphy->bands[NL80211_BAND_5GHZ] = &wcn_band_5ghz; 1141 1142 wcn->hw->wiphy->max_scan_ssids = WCN36XX_MAX_SCAN_SSIDS; 1143 wcn->hw->wiphy->max_scan_ie_len = WCN36XX_MAX_SCAN_IE_LEN; 1144 1145 wcn->hw->wiphy->cipher_suites = cipher_suites; 1146 wcn->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); 1147 1148 wcn->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; 1149 1150 #ifdef CONFIG_PM 1151 wcn->hw->wiphy->wowlan = &wowlan_support; 1152 #endif 1153 1154 wcn->hw->max_listen_interval = 200; 1155 1156 wcn->hw->queues = 4; 1157 1158 SET_IEEE80211_DEV(wcn->hw, wcn->dev); 1159 1160 wcn->hw->sta_data_size = sizeof(struct wcn36xx_sta); 1161 wcn->hw->vif_data_size = sizeof(struct wcn36xx_vif); 1162 1163 wiphy_ext_feature_set(wcn->hw->wiphy, 1164 NL80211_EXT_FEATURE_CQM_RSSI_LIST); 1165 1166 return ret; 1167 } 1168 1169 static int wcn36xx_platform_get_resources(struct wcn36xx *wcn, 1170 struct platform_device *pdev) 1171 { 1172 struct device_node *mmio_node; 1173 struct device_node *iris_node; 1174 struct resource *res; 1175 int index; 1176 int ret; 1177 1178 /* Set TX IRQ */ 1179 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "tx"); 1180 if (!res) { 1181 wcn36xx_err("failed to get tx_irq\n"); 1182 return -ENOENT; 1183 } 1184 wcn->tx_irq = res->start; 1185 1186 /* Set RX IRQ */ 1187 res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "rx"); 1188 if (!res) { 1189 wcn36xx_err("failed to get rx_irq\n"); 1190 return -ENOENT; 1191 } 1192 wcn->rx_irq = res->start; 1193 1194 /* Acquire SMSM tx enable handle */ 1195 wcn->tx_enable_state = qcom_smem_state_get(&pdev->dev, 1196 "tx-enable", &wcn->tx_enable_state_bit); 1197 if (IS_ERR(wcn->tx_enable_state)) { 1198 wcn36xx_err("failed to get tx-enable state\n"); 1199 return PTR_ERR(wcn->tx_enable_state); 1200 } 1201 1202 /* Acquire SMSM tx rings empty handle */ 1203 wcn->tx_rings_empty_state = qcom_smem_state_get(&pdev->dev, 1204 "tx-rings-empty", &wcn->tx_rings_empty_state_bit); 1205 if (IS_ERR(wcn->tx_rings_empty_state)) { 1206 wcn36xx_err("failed to get tx-rings-empty state\n"); 1207 return PTR_ERR(wcn->tx_rings_empty_state); 1208 } 1209 1210 mmio_node = of_parse_phandle(pdev->dev.parent->of_node, "qcom,mmio", 0); 1211 if (!mmio_node) { 1212 wcn36xx_err("failed to acquire qcom,mmio reference\n"); 1213 return -EINVAL; 1214 } 1215 1216 wcn->is_pronto = !!of_device_is_compatible(mmio_node, "qcom,pronto"); 1217 1218 /* Map the CCU memory */ 1219 index = of_property_match_string(mmio_node, "reg-names", "ccu"); 1220 wcn->ccu_base = of_iomap(mmio_node, index); 1221 if (!wcn->ccu_base) { 1222 wcn36xx_err("failed to map ccu memory\n"); 1223 ret = -ENOMEM; 1224 goto put_mmio_node; 1225 } 1226 1227 /* Map the DXE memory */ 1228 index = of_property_match_string(mmio_node, "reg-names", "dxe"); 1229 wcn->dxe_base = of_iomap(mmio_node, index); 1230 if (!wcn->dxe_base) { 1231 wcn36xx_err("failed to map dxe memory\n"); 1232 ret = -ENOMEM; 1233 goto unmap_ccu; 1234 } 1235 1236 /* External RF module */ 1237 iris_node = of_get_child_by_name(mmio_node, "iris"); 1238 if (iris_node) { 1239 if (of_device_is_compatible(iris_node, "qcom,wcn3620")) 1240 wcn->rf_id = RF_IRIS_WCN3620; 1241 of_node_put(iris_node); 1242 } 1243 1244 of_node_put(mmio_node); 1245 return 0; 1246 1247 unmap_ccu: 1248 iounmap(wcn->ccu_base); 1249 put_mmio_node: 1250 of_node_put(mmio_node); 1251 return ret; 1252 } 1253 1254 static int wcn36xx_probe(struct platform_device *pdev) 1255 { 1256 struct ieee80211_hw *hw; 1257 struct wcn36xx *wcn; 1258 void *wcnss; 1259 int ret; 1260 const u8 *addr; 1261 1262 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe\n"); 1263 1264 wcnss = dev_get_drvdata(pdev->dev.parent); 1265 1266 hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops); 1267 if (!hw) { 1268 wcn36xx_err("failed to alloc hw\n"); 1269 ret = -ENOMEM; 1270 goto out_err; 1271 } 1272 platform_set_drvdata(pdev, hw); 1273 wcn = hw->priv; 1274 wcn->hw = hw; 1275 wcn->dev = &pdev->dev; 1276 mutex_init(&wcn->conf_mutex); 1277 mutex_init(&wcn->hal_mutex); 1278 mutex_init(&wcn->scan_lock); 1279 1280 INIT_WORK(&wcn->scan_work, wcn36xx_hw_scan_worker); 1281 1282 wcn->smd_channel = qcom_wcnss_open_channel(wcnss, "WLAN_CTRL", wcn36xx_smd_rsp_process, hw); 1283 if (IS_ERR(wcn->smd_channel)) { 1284 wcn36xx_err("failed to open WLAN_CTRL channel\n"); 1285 ret = PTR_ERR(wcn->smd_channel); 1286 goto out_wq; 1287 } 1288 1289 addr = of_get_property(pdev->dev.of_node, "local-mac-address", &ret); 1290 if (addr && ret != ETH_ALEN) { 1291 wcn36xx_err("invalid local-mac-address\n"); 1292 ret = -EINVAL; 1293 goto out_wq; 1294 } else if (addr) { 1295 wcn36xx_info("mac address: %pM\n", addr); 1296 SET_IEEE80211_PERM_ADDR(wcn->hw, addr); 1297 } 1298 1299 ret = wcn36xx_platform_get_resources(wcn, pdev); 1300 if (ret) 1301 goto out_wq; 1302 1303 wcn36xx_init_ieee80211(wcn); 1304 ret = ieee80211_register_hw(wcn->hw); 1305 if (ret) 1306 goto out_unmap; 1307 1308 return 0; 1309 1310 out_unmap: 1311 iounmap(wcn->ccu_base); 1312 iounmap(wcn->dxe_base); 1313 out_wq: 1314 ieee80211_free_hw(hw); 1315 out_err: 1316 return ret; 1317 } 1318 1319 static int wcn36xx_remove(struct platform_device *pdev) 1320 { 1321 struct ieee80211_hw *hw = platform_get_drvdata(pdev); 1322 struct wcn36xx *wcn = hw->priv; 1323 wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n"); 1324 1325 release_firmware(wcn->nv); 1326 1327 ieee80211_unregister_hw(hw); 1328 1329 qcom_smem_state_put(wcn->tx_enable_state); 1330 qcom_smem_state_put(wcn->tx_rings_empty_state); 1331 1332 rpmsg_destroy_ept(wcn->smd_channel); 1333 1334 iounmap(wcn->dxe_base); 1335 iounmap(wcn->ccu_base); 1336 1337 mutex_destroy(&wcn->hal_mutex); 1338 ieee80211_free_hw(hw); 1339 1340 return 0; 1341 } 1342 1343 static const struct of_device_id wcn36xx_of_match[] = { 1344 { .compatible = "qcom,wcnss-wlan" }, 1345 {} 1346 }; 1347 MODULE_DEVICE_TABLE(of, wcn36xx_of_match); 1348 1349 static struct platform_driver wcn36xx_driver = { 1350 .probe = wcn36xx_probe, 1351 .remove = wcn36xx_remove, 1352 .driver = { 1353 .name = "wcn36xx", 1354 .of_match_table = wcn36xx_of_match, 1355 }, 1356 }; 1357 1358 module_platform_driver(wcn36xx_driver); 1359 1360 MODULE_LICENSE("Dual BSD/GPL"); 1361 MODULE_AUTHOR("Eugene Krasnikov k.eugene.e@gmail.com"); 1362 MODULE_FIRMWARE(WLAN_NV_FILE); 1363