1 /* 2 * Copyright (c) 2010-2011 Atheros Communications Inc. 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 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 18 19 #include "htc.h" 20 21 MODULE_AUTHOR("Atheros Communications"); 22 MODULE_LICENSE("Dual BSD/GPL"); 23 MODULE_DESCRIPTION("Atheros driver 802.11n HTC based wireless devices"); 24 25 static unsigned int ath9k_debug = ATH_DBG_DEFAULT; 26 module_param_named(debug, ath9k_debug, uint, 0); 27 MODULE_PARM_DESC(debug, "Debugging mask"); 28 29 int htc_modparam_nohwcrypt; 30 module_param_named(nohwcrypt, htc_modparam_nohwcrypt, int, 0444); 31 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption"); 32 33 static int ath9k_htc_btcoex_enable; 34 module_param_named(btcoex_enable, ath9k_htc_btcoex_enable, int, 0444); 35 MODULE_PARM_DESC(btcoex_enable, "Enable wifi-BT coexistence"); 36 37 static int ath9k_ps_enable; 38 module_param_named(ps_enable, ath9k_ps_enable, int, 0444); 39 MODULE_PARM_DESC(ps_enable, "Enable WLAN PowerSave"); 40 41 #ifdef CONFIG_MAC80211_LEDS 42 static const struct ieee80211_tpt_blink ath9k_htc_tpt_blink[] = { 43 { .throughput = 0 * 1024, .blink_time = 334 }, 44 { .throughput = 1 * 1024, .blink_time = 260 }, 45 { .throughput = 5 * 1024, .blink_time = 220 }, 46 { .throughput = 10 * 1024, .blink_time = 190 }, 47 { .throughput = 20 * 1024, .blink_time = 170 }, 48 { .throughput = 50 * 1024, .blink_time = 150 }, 49 { .throughput = 70 * 1024, .blink_time = 130 }, 50 { .throughput = 100 * 1024, .blink_time = 110 }, 51 { .throughput = 200 * 1024, .blink_time = 80 }, 52 { .throughput = 300 * 1024, .blink_time = 50 }, 53 }; 54 #endif 55 56 static int ath9k_htc_wait_for_target(struct ath9k_htc_priv *priv) 57 { 58 int time_left; 59 60 if (atomic_read(&priv->htc->tgt_ready) > 0) { 61 atomic_dec(&priv->htc->tgt_ready); 62 return 0; 63 } 64 65 /* Firmware can take up to 50ms to get ready, to be safe use 1 second */ 66 time_left = wait_for_completion_timeout(&priv->htc->target_wait, HZ); 67 if (!time_left) { 68 dev_err(priv->dev, "ath9k_htc: Target is unresponsive\n"); 69 return -ETIMEDOUT; 70 } 71 72 atomic_dec(&priv->htc->tgt_ready); 73 74 return 0; 75 } 76 77 static void ath9k_deinit_priv(struct ath9k_htc_priv *priv) 78 { 79 ath9k_hw_deinit(priv->ah); 80 kfree(priv->ah); 81 priv->ah = NULL; 82 } 83 84 static void ath9k_deinit_device(struct ath9k_htc_priv *priv) 85 { 86 struct ieee80211_hw *hw = priv->hw; 87 88 wiphy_rfkill_stop_polling(hw->wiphy); 89 ath9k_deinit_leds(priv); 90 ieee80211_unregister_hw(hw); 91 ath9k_rx_cleanup(priv); 92 ath9k_tx_cleanup(priv); 93 ath9k_deinit_priv(priv); 94 } 95 96 static inline int ath9k_htc_connect_svc(struct ath9k_htc_priv *priv, 97 u16 service_id, 98 void (*tx) (void *, 99 struct sk_buff *, 100 enum htc_endpoint_id, 101 bool txok), 102 enum htc_endpoint_id *ep_id) 103 { 104 struct htc_service_connreq req; 105 106 memset(&req, 0, sizeof(struct htc_service_connreq)); 107 108 req.service_id = service_id; 109 req.ep_callbacks.priv = priv; 110 req.ep_callbacks.rx = ath9k_htc_rxep; 111 req.ep_callbacks.tx = tx; 112 113 return htc_connect_service(priv->htc, &req, ep_id); 114 } 115 116 static int ath9k_init_htc_services(struct ath9k_htc_priv *priv, u16 devid, 117 u32 drv_info) 118 { 119 int ret; 120 121 /* WMI CMD*/ 122 ret = ath9k_wmi_connect(priv->htc, priv->wmi, &priv->wmi_cmd_ep); 123 if (ret) 124 goto err; 125 126 /* Beacon */ 127 ret = ath9k_htc_connect_svc(priv, WMI_BEACON_SVC, ath9k_htc_beaconep, 128 &priv->beacon_ep); 129 if (ret) 130 goto err; 131 132 /* CAB */ 133 ret = ath9k_htc_connect_svc(priv, WMI_CAB_SVC, ath9k_htc_txep, 134 &priv->cab_ep); 135 if (ret) 136 goto err; 137 138 139 /* UAPSD */ 140 ret = ath9k_htc_connect_svc(priv, WMI_UAPSD_SVC, ath9k_htc_txep, 141 &priv->uapsd_ep); 142 if (ret) 143 goto err; 144 145 /* MGMT */ 146 ret = ath9k_htc_connect_svc(priv, WMI_MGMT_SVC, ath9k_htc_txep, 147 &priv->mgmt_ep); 148 if (ret) 149 goto err; 150 151 /* DATA BE */ 152 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BE_SVC, ath9k_htc_txep, 153 &priv->data_be_ep); 154 if (ret) 155 goto err; 156 157 /* DATA BK */ 158 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BK_SVC, ath9k_htc_txep, 159 &priv->data_bk_ep); 160 if (ret) 161 goto err; 162 163 /* DATA VI */ 164 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VI_SVC, ath9k_htc_txep, 165 &priv->data_vi_ep); 166 if (ret) 167 goto err; 168 169 /* DATA VO */ 170 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VO_SVC, ath9k_htc_txep, 171 &priv->data_vo_ep); 172 if (ret) 173 goto err; 174 175 /* 176 * Setup required credits before initializing HTC. 177 * This is a bit hacky, but, since queuing is done in 178 * the HIF layer, shouldn't matter much. 179 */ 180 181 if (IS_AR7010_DEVICE(drv_info)) 182 priv->htc->credits = 45; 183 else 184 priv->htc->credits = 33; 185 186 ret = htc_init(priv->htc); 187 if (ret) 188 goto err; 189 190 dev_info(priv->dev, "ath9k_htc: HTC initialized with %d credits\n", 191 priv->htc->credits); 192 193 return 0; 194 195 err: 196 dev_err(priv->dev, "ath9k_htc: Unable to initialize HTC services\n"); 197 return ret; 198 } 199 200 static void ath9k_reg_notifier(struct wiphy *wiphy, 201 struct regulatory_request *request) 202 { 203 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 204 struct ath9k_htc_priv *priv = hw->priv; 205 206 ath_reg_notifier_apply(wiphy, request, 207 ath9k_hw_regulatory(priv->ah)); 208 } 209 210 static unsigned int ath9k_regread(void *hw_priv, u32 reg_offset) 211 { 212 struct ath_hw *ah = (struct ath_hw *) hw_priv; 213 struct ath_common *common = ath9k_hw_common(ah); 214 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 215 __be32 val, reg = cpu_to_be32(reg_offset); 216 int r; 217 218 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID, 219 (u8 *) ®, sizeof(reg), 220 (u8 *) &val, sizeof(val), 221 100); 222 if (unlikely(r)) { 223 ath_dbg(common, WMI, "REGISTER READ FAILED: (0x%04x, %d)\n", 224 reg_offset, r); 225 return -EIO; 226 } 227 228 return be32_to_cpu(val); 229 } 230 231 static void ath9k_multi_regread(void *hw_priv, u32 *addr, 232 u32 *val, u16 count) 233 { 234 struct ath_hw *ah = (struct ath_hw *) hw_priv; 235 struct ath_common *common = ath9k_hw_common(ah); 236 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 237 __be32 tmpaddr[8]; 238 __be32 tmpval[8]; 239 int i, ret; 240 241 for (i = 0; i < count; i++) { 242 tmpaddr[i] = cpu_to_be32(addr[i]); 243 } 244 245 ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID, 246 (u8 *)tmpaddr , sizeof(u32) * count, 247 (u8 *)tmpval, sizeof(u32) * count, 248 100); 249 if (unlikely(ret)) { 250 ath_dbg(common, WMI, 251 "Multiple REGISTER READ FAILED (count: %d)\n", count); 252 } 253 254 for (i = 0; i < count; i++) { 255 val[i] = be32_to_cpu(tmpval[i]); 256 } 257 } 258 259 static void ath9k_regwrite_multi(struct ath_common *common) 260 { 261 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 262 u32 rsp_status; 263 int r; 264 265 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID, 266 (u8 *) &priv->wmi->multi_write, 267 sizeof(struct register_write) * priv->wmi->multi_write_idx, 268 (u8 *) &rsp_status, sizeof(rsp_status), 269 100); 270 if (unlikely(r)) { 271 ath_dbg(common, WMI, 272 "REGISTER WRITE FAILED, multi len: %d\n", 273 priv->wmi->multi_write_idx); 274 } 275 priv->wmi->multi_write_idx = 0; 276 } 277 278 static void ath9k_regwrite_single(void *hw_priv, u32 val, u32 reg_offset) 279 { 280 struct ath_hw *ah = (struct ath_hw *) hw_priv; 281 struct ath_common *common = ath9k_hw_common(ah); 282 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 283 const __be32 buf[2] = { 284 cpu_to_be32(reg_offset), 285 cpu_to_be32(val), 286 }; 287 int r; 288 289 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID, 290 (u8 *) &buf, sizeof(buf), 291 (u8 *) &val, sizeof(val), 292 100); 293 if (unlikely(r)) { 294 ath_dbg(common, WMI, "REGISTER WRITE FAILED:(0x%04x, %d)\n", 295 reg_offset, r); 296 } 297 } 298 299 static void ath9k_regwrite_buffer(void *hw_priv, u32 val, u32 reg_offset) 300 { 301 struct ath_hw *ah = (struct ath_hw *) hw_priv; 302 struct ath_common *common = ath9k_hw_common(ah); 303 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 304 305 mutex_lock(&priv->wmi->multi_write_mutex); 306 307 /* Store the register/value */ 308 priv->wmi->multi_write[priv->wmi->multi_write_idx].reg = 309 cpu_to_be32(reg_offset); 310 priv->wmi->multi_write[priv->wmi->multi_write_idx].val = 311 cpu_to_be32(val); 312 313 priv->wmi->multi_write_idx++; 314 315 /* If the buffer is full, send it out. */ 316 if (priv->wmi->multi_write_idx == MAX_CMD_NUMBER) 317 ath9k_regwrite_multi(common); 318 319 mutex_unlock(&priv->wmi->multi_write_mutex); 320 } 321 322 static void ath9k_regwrite(void *hw_priv, u32 val, u32 reg_offset) 323 { 324 struct ath_hw *ah = (struct ath_hw *) hw_priv; 325 struct ath_common *common = ath9k_hw_common(ah); 326 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 327 328 if (atomic_read(&priv->wmi->mwrite_cnt)) 329 ath9k_regwrite_buffer(hw_priv, val, reg_offset); 330 else 331 ath9k_regwrite_single(hw_priv, val, reg_offset); 332 } 333 334 static void ath9k_enable_regwrite_buffer(void *hw_priv) 335 { 336 struct ath_hw *ah = (struct ath_hw *) hw_priv; 337 struct ath_common *common = ath9k_hw_common(ah); 338 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 339 340 atomic_inc(&priv->wmi->mwrite_cnt); 341 } 342 343 static void ath9k_regwrite_flush(void *hw_priv) 344 { 345 struct ath_hw *ah = (struct ath_hw *) hw_priv; 346 struct ath_common *common = ath9k_hw_common(ah); 347 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 348 349 atomic_dec(&priv->wmi->mwrite_cnt); 350 351 mutex_lock(&priv->wmi->multi_write_mutex); 352 353 if (priv->wmi->multi_write_idx) 354 ath9k_regwrite_multi(common); 355 356 mutex_unlock(&priv->wmi->multi_write_mutex); 357 } 358 359 static u32 ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 clr) 360 { 361 u32 val; 362 363 val = ath9k_regread(hw_priv, reg_offset); 364 val &= ~clr; 365 val |= set; 366 ath9k_regwrite(hw_priv, val, reg_offset); 367 return val; 368 } 369 370 static void ath_usb_read_cachesize(struct ath_common *common, int *csz) 371 { 372 *csz = L1_CACHE_BYTES >> 2; 373 } 374 375 static bool ath_usb_eeprom_read(struct ath_common *common, u32 off, u16 *data) 376 { 377 struct ath_hw *ah = (struct ath_hw *) common->ah; 378 379 (void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S)); 380 381 if (!ath9k_hw_wait(ah, 382 AR_EEPROM_STATUS_DATA, 383 AR_EEPROM_STATUS_DATA_BUSY | 384 AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0, 385 AH_WAIT_TIMEOUT)) 386 return false; 387 388 *data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA), 389 AR_EEPROM_STATUS_DATA_VAL); 390 391 return true; 392 } 393 394 static const struct ath_bus_ops ath9k_usb_bus_ops = { 395 .ath_bus_type = ATH_USB, 396 .read_cachesize = ath_usb_read_cachesize, 397 .eeprom_read = ath_usb_eeprom_read, 398 }; 399 400 static int ath9k_init_queues(struct ath9k_htc_priv *priv) 401 { 402 struct ath_common *common = ath9k_hw_common(priv->ah); 403 int i; 404 405 for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++) 406 priv->hwq_map[i] = -1; 407 408 priv->beaconq = ath9k_hw_beaconq_setup(priv->ah); 409 if (priv->beaconq == -1) { 410 ath_err(common, "Unable to setup BEACON xmit queue\n"); 411 goto err; 412 } 413 414 priv->cabq = ath9k_htc_cabq_setup(priv); 415 if (priv->cabq == -1) { 416 ath_err(common, "Unable to setup CAB xmit queue\n"); 417 goto err; 418 } 419 420 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BE)) { 421 ath_err(common, "Unable to setup xmit queue for BE traffic\n"); 422 goto err; 423 } 424 425 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BK)) { 426 ath_err(common, "Unable to setup xmit queue for BK traffic\n"); 427 goto err; 428 } 429 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VI)) { 430 ath_err(common, "Unable to setup xmit queue for VI traffic\n"); 431 goto err; 432 } 433 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VO)) { 434 ath_err(common, "Unable to setup xmit queue for VO traffic\n"); 435 goto err; 436 } 437 438 return 0; 439 440 err: 441 return -EINVAL; 442 } 443 444 static void ath9k_init_misc(struct ath9k_htc_priv *priv) 445 { 446 struct ath_common *common = ath9k_hw_common(priv->ah); 447 448 memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN); 449 450 common->last_rssi = ATH_RSSI_DUMMY_MARKER; 451 priv->ah->opmode = NL80211_IFTYPE_STATION; 452 } 453 454 static int ath9k_init_priv(struct ath9k_htc_priv *priv, 455 u16 devid, char *product, 456 u32 drv_info) 457 { 458 struct ath_hw *ah = NULL; 459 struct ath_common *common; 460 int i, ret = 0, csz = 0; 461 462 set_bit(OP_INVALID, &priv->op_flags); 463 464 ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL); 465 if (!ah) 466 return -ENOMEM; 467 468 ah->dev = priv->dev; 469 ah->hw_version.devid = devid; 470 ah->hw_version.usbdev = drv_info; 471 ah->ah_flags |= AH_USE_EEPROM; 472 ah->reg_ops.read = ath9k_regread; 473 ah->reg_ops.multi_read = ath9k_multi_regread; 474 ah->reg_ops.write = ath9k_regwrite; 475 ah->reg_ops.enable_write_buffer = ath9k_enable_regwrite_buffer; 476 ah->reg_ops.write_flush = ath9k_regwrite_flush; 477 ah->reg_ops.rmw = ath9k_reg_rmw; 478 priv->ah = ah; 479 480 common = ath9k_hw_common(ah); 481 common->ops = &ah->reg_ops; 482 common->bus_ops = &ath9k_usb_bus_ops; 483 common->ah = ah; 484 common->hw = priv->hw; 485 common->priv = priv; 486 common->debug_mask = ath9k_debug; 487 common->btcoex_enabled = ath9k_htc_btcoex_enable == 1; 488 489 spin_lock_init(&priv->beacon_lock); 490 spin_lock_init(&priv->tx.tx_lock); 491 mutex_init(&priv->mutex); 492 mutex_init(&priv->htc_pm_lock); 493 tasklet_init(&priv->rx_tasklet, ath9k_rx_tasklet, 494 (unsigned long)priv); 495 tasklet_init(&priv->tx_failed_tasklet, ath9k_tx_failed_tasklet, 496 (unsigned long)priv); 497 INIT_DELAYED_WORK(&priv->ani_work, ath9k_htc_ani_work); 498 INIT_WORK(&priv->ps_work, ath9k_ps_work); 499 INIT_WORK(&priv->fatal_work, ath9k_fatal_work); 500 setup_timer(&priv->tx.cleanup_timer, ath9k_htc_tx_cleanup_timer, 501 (unsigned long)priv); 502 503 /* 504 * Cache line size is used to size and align various 505 * structures used to communicate with the hardware. 506 */ 507 ath_read_cachesize(common, &csz); 508 common->cachelsz = csz << 2; /* convert to bytes */ 509 510 ret = ath9k_hw_init(ah); 511 if (ret) { 512 ath_err(common, 513 "Unable to initialize hardware; initialization status: %d\n", 514 ret); 515 goto err_hw; 516 } 517 518 ret = ath9k_init_queues(priv); 519 if (ret) 520 goto err_queues; 521 522 for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++) 523 priv->cur_beacon_conf.bslot[i] = NULL; 524 525 ath9k_cmn_init_channels_rates(common); 526 ath9k_cmn_init_crypto(ah); 527 ath9k_init_misc(priv); 528 ath9k_htc_init_btcoex(priv, product); 529 530 return 0; 531 532 err_queues: 533 ath9k_hw_deinit(ah); 534 err_hw: 535 536 kfree(ah); 537 priv->ah = NULL; 538 539 return ret; 540 } 541 542 static const struct ieee80211_iface_limit if_limits[] = { 543 { .max = 2, .types = BIT(NL80211_IFTYPE_STATION) | 544 BIT(NL80211_IFTYPE_P2P_CLIENT) }, 545 { .max = 2, .types = BIT(NL80211_IFTYPE_AP) | 546 #ifdef CONFIG_MAC80211_MESH 547 BIT(NL80211_IFTYPE_MESH_POINT) | 548 #endif 549 BIT(NL80211_IFTYPE_P2P_GO) }, 550 }; 551 552 static const struct ieee80211_iface_combination if_comb = { 553 .limits = if_limits, 554 .n_limits = ARRAY_SIZE(if_limits), 555 .max_interfaces = 2, 556 .num_different_channels = 1, 557 }; 558 559 static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv, 560 struct ieee80211_hw *hw) 561 { 562 struct ath_hw *ah = priv->ah; 563 struct ath_common *common = ath9k_hw_common(priv->ah); 564 struct base_eep_header *pBase; 565 566 hw->flags = IEEE80211_HW_SIGNAL_DBM | 567 IEEE80211_HW_AMPDU_AGGREGATION | 568 IEEE80211_HW_SPECTRUM_MGMT | 569 IEEE80211_HW_HAS_RATE_CONTROL | 570 IEEE80211_HW_RX_INCLUDES_FCS | 571 IEEE80211_HW_PS_NULLFUNC_STACK | 572 IEEE80211_HW_REPORTS_TX_ACK_STATUS | 573 IEEE80211_HW_MFP_CAPABLE | 574 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING; 575 576 if (ath9k_ps_enable) 577 hw->flags |= IEEE80211_HW_SUPPORTS_PS; 578 579 hw->wiphy->interface_modes = 580 BIT(NL80211_IFTYPE_STATION) | 581 BIT(NL80211_IFTYPE_ADHOC) | 582 BIT(NL80211_IFTYPE_AP) | 583 BIT(NL80211_IFTYPE_P2P_GO) | 584 BIT(NL80211_IFTYPE_P2P_CLIENT) | 585 BIT(NL80211_IFTYPE_MESH_POINT); 586 587 hw->wiphy->iface_combinations = &if_comb; 588 hw->wiphy->n_iface_combinations = 1; 589 590 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 591 592 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN | 593 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; 594 595 hw->queues = 4; 596 hw->max_listen_interval = 1; 597 598 hw->vif_data_size = sizeof(struct ath9k_htc_vif); 599 hw->sta_data_size = sizeof(struct ath9k_htc_sta); 600 601 /* tx_frame_hdr is larger than tx_mgmt_hdr anyway */ 602 hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) + 603 sizeof(struct htc_frame_hdr) + 4; 604 605 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ) 606 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = 607 &common->sbands[IEEE80211_BAND_2GHZ]; 608 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ) 609 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = 610 &common->sbands[IEEE80211_BAND_5GHZ]; 611 612 ath9k_cmn_reload_chainmask(ah); 613 614 pBase = ath9k_htc_get_eeprom_base(priv); 615 if (pBase) { 616 hw->wiphy->available_antennas_rx = pBase->rxMask; 617 hw->wiphy->available_antennas_tx = pBase->txMask; 618 } 619 620 SET_IEEE80211_PERM_ADDR(hw, common->macaddr); 621 } 622 623 static int ath9k_init_firmware_version(struct ath9k_htc_priv *priv) 624 { 625 struct ieee80211_hw *hw = priv->hw; 626 struct wmi_fw_version cmd_rsp; 627 int ret; 628 629 memset(&cmd_rsp, 0, sizeof(cmd_rsp)); 630 631 WMI_CMD(WMI_GET_FW_VERSION); 632 if (ret) 633 return -EINVAL; 634 635 priv->fw_version_major = be16_to_cpu(cmd_rsp.major); 636 priv->fw_version_minor = be16_to_cpu(cmd_rsp.minor); 637 638 snprintf(hw->wiphy->fw_version, sizeof(hw->wiphy->fw_version), "%d.%d", 639 priv->fw_version_major, 640 priv->fw_version_minor); 641 642 dev_info(priv->dev, "ath9k_htc: FW Version: %d.%d\n", 643 priv->fw_version_major, 644 priv->fw_version_minor); 645 646 /* 647 * Check if the available FW matches the driver's 648 * required version. 649 */ 650 if (priv->fw_version_major != MAJOR_VERSION_REQ || 651 priv->fw_version_minor < MINOR_VERSION_REQ) { 652 dev_err(priv->dev, "ath9k_htc: Please upgrade to FW version %d.%d\n", 653 MAJOR_VERSION_REQ, MINOR_VERSION_REQ); 654 return -EINVAL; 655 } 656 657 return 0; 658 } 659 660 static int ath9k_init_device(struct ath9k_htc_priv *priv, 661 u16 devid, char *product, u32 drv_info) 662 { 663 struct ieee80211_hw *hw = priv->hw; 664 struct ath_common *common; 665 struct ath_hw *ah; 666 int error = 0; 667 struct ath_regulatory *reg; 668 char hw_name[64]; 669 670 /* Bring up device */ 671 error = ath9k_init_priv(priv, devid, product, drv_info); 672 if (error != 0) 673 goto err_init; 674 675 ah = priv->ah; 676 common = ath9k_hw_common(ah); 677 ath9k_set_hw_capab(priv, hw); 678 679 error = ath9k_init_firmware_version(priv); 680 if (error != 0) 681 goto err_fw; 682 683 /* Initialize regulatory */ 684 error = ath_regd_init(&common->regulatory, priv->hw->wiphy, 685 ath9k_reg_notifier); 686 if (error) 687 goto err_regd; 688 689 reg = &common->regulatory; 690 691 /* Setup TX */ 692 error = ath9k_tx_init(priv); 693 if (error != 0) 694 goto err_tx; 695 696 /* Setup RX */ 697 error = ath9k_rx_init(priv); 698 if (error != 0) 699 goto err_rx; 700 701 ath9k_hw_disable(priv->ah); 702 #ifdef CONFIG_MAC80211_LEDS 703 /* must be initialized before ieee80211_register_hw */ 704 priv->led_cdev.default_trigger = ieee80211_create_tpt_led_trigger(priv->hw, 705 IEEE80211_TPT_LEDTRIG_FL_RADIO, ath9k_htc_tpt_blink, 706 ARRAY_SIZE(ath9k_htc_tpt_blink)); 707 #endif 708 709 /* Register with mac80211 */ 710 error = ieee80211_register_hw(hw); 711 if (error) 712 goto err_register; 713 714 /* Handle world regulatory */ 715 if (!ath_is_world_regd(reg)) { 716 error = regulatory_hint(hw->wiphy, reg->alpha2); 717 if (error) 718 goto err_world; 719 } 720 721 error = ath9k_htc_init_debug(priv->ah); 722 if (error) { 723 ath_err(common, "Unable to create debugfs files\n"); 724 goto err_world; 725 } 726 727 ath_dbg(common, CONFIG, 728 "WMI:%d, BCN:%d, CAB:%d, UAPSD:%d, MGMT:%d, BE:%d, BK:%d, VI:%d, VO:%d\n", 729 priv->wmi_cmd_ep, 730 priv->beacon_ep, 731 priv->cab_ep, 732 priv->uapsd_ep, 733 priv->mgmt_ep, 734 priv->data_be_ep, 735 priv->data_bk_ep, 736 priv->data_vi_ep, 737 priv->data_vo_ep); 738 739 ath9k_hw_name(priv->ah, hw_name, sizeof(hw_name)); 740 wiphy_info(hw->wiphy, "%s\n", hw_name); 741 742 ath9k_init_leds(priv); 743 ath9k_start_rfkill_poll(priv); 744 745 return 0; 746 747 err_world: 748 ieee80211_unregister_hw(hw); 749 err_register: 750 ath9k_rx_cleanup(priv); 751 err_rx: 752 ath9k_tx_cleanup(priv); 753 err_tx: 754 /* Nothing */ 755 err_regd: 756 /* Nothing */ 757 err_fw: 758 ath9k_deinit_priv(priv); 759 err_init: 760 return error; 761 } 762 763 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev, 764 u16 devid, char *product, u32 drv_info) 765 { 766 struct ieee80211_hw *hw; 767 struct ath9k_htc_priv *priv; 768 int ret; 769 770 hw = ieee80211_alloc_hw(sizeof(struct ath9k_htc_priv), &ath9k_htc_ops); 771 if (!hw) 772 return -ENOMEM; 773 774 priv = hw->priv; 775 priv->hw = hw; 776 priv->htc = htc_handle; 777 priv->dev = dev; 778 htc_handle->drv_priv = priv; 779 SET_IEEE80211_DEV(hw, priv->dev); 780 781 ret = ath9k_htc_wait_for_target(priv); 782 if (ret) 783 goto err_free; 784 785 priv->wmi = ath9k_init_wmi(priv); 786 if (!priv->wmi) { 787 ret = -EINVAL; 788 goto err_free; 789 } 790 791 ret = ath9k_init_htc_services(priv, devid, drv_info); 792 if (ret) 793 goto err_init; 794 795 ret = ath9k_init_device(priv, devid, product, drv_info); 796 if (ret) 797 goto err_init; 798 799 return 0; 800 801 err_init: 802 ath9k_deinit_wmi(priv); 803 err_free: 804 ieee80211_free_hw(hw); 805 return ret; 806 } 807 808 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug) 809 { 810 if (htc_handle->drv_priv) { 811 812 /* Check if the device has been yanked out. */ 813 if (hotunplug) 814 htc_handle->drv_priv->ah->ah_flags |= AH_UNPLUGGED; 815 816 ath9k_deinit_device(htc_handle->drv_priv); 817 ath9k_deinit_wmi(htc_handle->drv_priv); 818 ieee80211_free_hw(htc_handle->drv_priv->hw); 819 } 820 } 821 822 #ifdef CONFIG_PM 823 824 void ath9k_htc_suspend(struct htc_target *htc_handle) 825 { 826 ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP); 827 } 828 829 int ath9k_htc_resume(struct htc_target *htc_handle) 830 { 831 struct ath9k_htc_priv *priv = htc_handle->drv_priv; 832 int ret; 833 834 ret = ath9k_htc_wait_for_target(priv); 835 if (ret) 836 return ret; 837 838 ret = ath9k_init_htc_services(priv, priv->ah->hw_version.devid, 839 priv->ah->hw_version.usbdev); 840 ath9k_configure_leds(priv); 841 842 return ret; 843 } 844 #endif 845 846 static int __init ath9k_htc_init(void) 847 { 848 if (ath9k_hif_usb_init() < 0) { 849 pr_err("No USB devices found, driver not installed\n"); 850 return -ENODEV; 851 } 852 853 return 0; 854 } 855 module_init(ath9k_htc_init); 856 857 static void __exit ath9k_htc_exit(void) 858 { 859 ath9k_hif_usb_exit(); 860 pr_info("Driver unloaded\n"); 861 } 862 module_exit(ath9k_htc_exit); 863