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 void ath9k_htc_op_ps_wakeup(struct ath_common *common) 57 { 58 ath9k_htc_ps_wakeup((struct ath9k_htc_priv *) common->priv); 59 } 60 61 static void ath9k_htc_op_ps_restore(struct ath_common *common) 62 { 63 ath9k_htc_ps_restore((struct ath9k_htc_priv *) common->priv); 64 } 65 66 static struct ath_ps_ops ath9k_htc_ps_ops = { 67 .wakeup = ath9k_htc_op_ps_wakeup, 68 .restore = ath9k_htc_op_ps_restore, 69 }; 70 71 static int ath9k_htc_wait_for_target(struct ath9k_htc_priv *priv) 72 { 73 int time_left; 74 75 if (atomic_read(&priv->htc->tgt_ready) > 0) { 76 atomic_dec(&priv->htc->tgt_ready); 77 return 0; 78 } 79 80 /* Firmware can take up to 50ms to get ready, to be safe use 1 second */ 81 time_left = wait_for_completion_timeout(&priv->htc->target_wait, HZ); 82 if (!time_left) { 83 dev_err(priv->dev, "ath9k_htc: Target is unresponsive\n"); 84 return -ETIMEDOUT; 85 } 86 87 atomic_dec(&priv->htc->tgt_ready); 88 89 return 0; 90 } 91 92 static void ath9k_deinit_priv(struct ath9k_htc_priv *priv) 93 { 94 ath9k_hw_deinit(priv->ah); 95 kfree(priv->ah); 96 priv->ah = NULL; 97 } 98 99 static void ath9k_deinit_device(struct ath9k_htc_priv *priv) 100 { 101 struct ieee80211_hw *hw = priv->hw; 102 103 wiphy_rfkill_stop_polling(hw->wiphy); 104 ath9k_deinit_leds(priv); 105 ath9k_htc_deinit_debug(priv); 106 ieee80211_unregister_hw(hw); 107 ath9k_rx_cleanup(priv); 108 ath9k_tx_cleanup(priv); 109 ath9k_deinit_priv(priv); 110 } 111 112 static inline int ath9k_htc_connect_svc(struct ath9k_htc_priv *priv, 113 u16 service_id, 114 void (*tx) (void *, 115 struct sk_buff *, 116 enum htc_endpoint_id, 117 bool txok), 118 enum htc_endpoint_id *ep_id) 119 { 120 struct htc_service_connreq req; 121 122 memset(&req, 0, sizeof(struct htc_service_connreq)); 123 124 req.service_id = service_id; 125 req.ep_callbacks.priv = priv; 126 req.ep_callbacks.rx = ath9k_htc_rxep; 127 req.ep_callbacks.tx = tx; 128 129 return htc_connect_service(priv->htc, &req, ep_id); 130 } 131 132 static int ath9k_init_htc_services(struct ath9k_htc_priv *priv, u16 devid, 133 u32 drv_info) 134 { 135 int ret; 136 137 /* WMI CMD*/ 138 ret = ath9k_wmi_connect(priv->htc, priv->wmi, &priv->wmi_cmd_ep); 139 if (ret) 140 goto err; 141 142 /* Beacon */ 143 ret = ath9k_htc_connect_svc(priv, WMI_BEACON_SVC, ath9k_htc_beaconep, 144 &priv->beacon_ep); 145 if (ret) 146 goto err; 147 148 /* CAB */ 149 ret = ath9k_htc_connect_svc(priv, WMI_CAB_SVC, ath9k_htc_txep, 150 &priv->cab_ep); 151 if (ret) 152 goto err; 153 154 155 /* UAPSD */ 156 ret = ath9k_htc_connect_svc(priv, WMI_UAPSD_SVC, ath9k_htc_txep, 157 &priv->uapsd_ep); 158 if (ret) 159 goto err; 160 161 /* MGMT */ 162 ret = ath9k_htc_connect_svc(priv, WMI_MGMT_SVC, ath9k_htc_txep, 163 &priv->mgmt_ep); 164 if (ret) 165 goto err; 166 167 /* DATA BE */ 168 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BE_SVC, ath9k_htc_txep, 169 &priv->data_be_ep); 170 if (ret) 171 goto err; 172 173 /* DATA BK */ 174 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BK_SVC, ath9k_htc_txep, 175 &priv->data_bk_ep); 176 if (ret) 177 goto err; 178 179 /* DATA VI */ 180 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VI_SVC, ath9k_htc_txep, 181 &priv->data_vi_ep); 182 if (ret) 183 goto err; 184 185 /* DATA VO */ 186 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VO_SVC, ath9k_htc_txep, 187 &priv->data_vo_ep); 188 if (ret) 189 goto err; 190 191 /* 192 * Setup required credits before initializing HTC. 193 * This is a bit hacky, but, since queuing is done in 194 * the HIF layer, shouldn't matter much. 195 */ 196 197 if (IS_AR7010_DEVICE(drv_info)) 198 priv->htc->credits = 45; 199 else 200 priv->htc->credits = 33; 201 202 ret = htc_init(priv->htc); 203 if (ret) 204 goto err; 205 206 dev_info(priv->dev, "ath9k_htc: HTC initialized with %d credits\n", 207 priv->htc->credits); 208 209 return 0; 210 211 err: 212 dev_err(priv->dev, "ath9k_htc: Unable to initialize HTC services\n"); 213 return ret; 214 } 215 216 static void ath9k_reg_notifier(struct wiphy *wiphy, 217 struct regulatory_request *request) 218 { 219 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy); 220 struct ath9k_htc_priv *priv = hw->priv; 221 222 ath_reg_notifier_apply(wiphy, request, 223 ath9k_hw_regulatory(priv->ah)); 224 } 225 226 static unsigned int ath9k_regread(void *hw_priv, u32 reg_offset) 227 { 228 struct ath_hw *ah = (struct ath_hw *) hw_priv; 229 struct ath_common *common = ath9k_hw_common(ah); 230 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 231 __be32 val, reg = cpu_to_be32(reg_offset); 232 int r; 233 234 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID, 235 (u8 *) ®, sizeof(reg), 236 (u8 *) &val, sizeof(val), 237 100); 238 if (unlikely(r)) { 239 ath_dbg(common, WMI, "REGISTER READ FAILED: (0x%04x, %d)\n", 240 reg_offset, r); 241 return -EIO; 242 } 243 244 return be32_to_cpu(val); 245 } 246 247 static void ath9k_multi_regread(void *hw_priv, u32 *addr, 248 u32 *val, u16 count) 249 { 250 struct ath_hw *ah = (struct ath_hw *) hw_priv; 251 struct ath_common *common = ath9k_hw_common(ah); 252 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 253 __be32 tmpaddr[8]; 254 __be32 tmpval[8]; 255 int i, ret; 256 257 for (i = 0; i < count; i++) { 258 tmpaddr[i] = cpu_to_be32(addr[i]); 259 } 260 261 ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID, 262 (u8 *)tmpaddr , sizeof(u32) * count, 263 (u8 *)tmpval, sizeof(u32) * count, 264 100); 265 if (unlikely(ret)) { 266 ath_dbg(common, WMI, 267 "Multiple REGISTER READ FAILED (count: %d)\n", count); 268 } 269 270 for (i = 0; i < count; i++) { 271 val[i] = be32_to_cpu(tmpval[i]); 272 } 273 } 274 275 static void ath9k_regwrite_multi(struct ath_common *common) 276 { 277 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 278 u32 rsp_status; 279 int r; 280 281 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID, 282 (u8 *) &priv->wmi->multi_write, 283 sizeof(struct register_write) * priv->wmi->multi_write_idx, 284 (u8 *) &rsp_status, sizeof(rsp_status), 285 100); 286 if (unlikely(r)) { 287 ath_dbg(common, WMI, 288 "REGISTER WRITE FAILED, multi len: %d\n", 289 priv->wmi->multi_write_idx); 290 } 291 priv->wmi->multi_write_idx = 0; 292 } 293 294 static void ath9k_regwrite_single(void *hw_priv, u32 val, u32 reg_offset) 295 { 296 struct ath_hw *ah = (struct ath_hw *) hw_priv; 297 struct ath_common *common = ath9k_hw_common(ah); 298 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 299 const __be32 buf[2] = { 300 cpu_to_be32(reg_offset), 301 cpu_to_be32(val), 302 }; 303 int r; 304 305 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID, 306 (u8 *) &buf, sizeof(buf), 307 (u8 *) &val, sizeof(val), 308 100); 309 if (unlikely(r)) { 310 ath_dbg(common, WMI, "REGISTER WRITE FAILED:(0x%04x, %d)\n", 311 reg_offset, r); 312 } 313 } 314 315 static void ath9k_regwrite_buffer(void *hw_priv, u32 val, u32 reg_offset) 316 { 317 struct ath_hw *ah = (struct ath_hw *) hw_priv; 318 struct ath_common *common = ath9k_hw_common(ah); 319 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 320 321 mutex_lock(&priv->wmi->multi_write_mutex); 322 323 /* Store the register/value */ 324 priv->wmi->multi_write[priv->wmi->multi_write_idx].reg = 325 cpu_to_be32(reg_offset); 326 priv->wmi->multi_write[priv->wmi->multi_write_idx].val = 327 cpu_to_be32(val); 328 329 priv->wmi->multi_write_idx++; 330 331 /* If the buffer is full, send it out. */ 332 if (priv->wmi->multi_write_idx == MAX_CMD_NUMBER) 333 ath9k_regwrite_multi(common); 334 335 mutex_unlock(&priv->wmi->multi_write_mutex); 336 } 337 338 static void ath9k_regwrite(void *hw_priv, u32 val, u32 reg_offset) 339 { 340 struct ath_hw *ah = (struct ath_hw *) hw_priv; 341 struct ath_common *common = ath9k_hw_common(ah); 342 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 343 344 if (atomic_read(&priv->wmi->mwrite_cnt)) 345 ath9k_regwrite_buffer(hw_priv, val, reg_offset); 346 else 347 ath9k_regwrite_single(hw_priv, val, reg_offset); 348 } 349 350 static void ath9k_enable_regwrite_buffer(void *hw_priv) 351 { 352 struct ath_hw *ah = (struct ath_hw *) hw_priv; 353 struct ath_common *common = ath9k_hw_common(ah); 354 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 355 356 atomic_inc(&priv->wmi->mwrite_cnt); 357 } 358 359 static void ath9k_regwrite_flush(void *hw_priv) 360 { 361 struct ath_hw *ah = (struct ath_hw *) hw_priv; 362 struct ath_common *common = ath9k_hw_common(ah); 363 struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv; 364 365 atomic_dec(&priv->wmi->mwrite_cnt); 366 367 mutex_lock(&priv->wmi->multi_write_mutex); 368 369 if (priv->wmi->multi_write_idx) 370 ath9k_regwrite_multi(common); 371 372 mutex_unlock(&priv->wmi->multi_write_mutex); 373 } 374 375 static u32 ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 clr) 376 { 377 u32 val; 378 379 val = ath9k_regread(hw_priv, reg_offset); 380 val &= ~clr; 381 val |= set; 382 ath9k_regwrite(hw_priv, val, reg_offset); 383 return val; 384 } 385 386 static void ath_usb_read_cachesize(struct ath_common *common, int *csz) 387 { 388 *csz = L1_CACHE_BYTES >> 2; 389 } 390 391 static bool ath_usb_eeprom_read(struct ath_common *common, u32 off, u16 *data) 392 { 393 struct ath_hw *ah = (struct ath_hw *) common->ah; 394 395 (void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S)); 396 397 if (!ath9k_hw_wait(ah, 398 AR_EEPROM_STATUS_DATA, 399 AR_EEPROM_STATUS_DATA_BUSY | 400 AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0, 401 AH_WAIT_TIMEOUT)) 402 return false; 403 404 *data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA), 405 AR_EEPROM_STATUS_DATA_VAL); 406 407 return true; 408 } 409 410 static const struct ath_bus_ops ath9k_usb_bus_ops = { 411 .ath_bus_type = ATH_USB, 412 .read_cachesize = ath_usb_read_cachesize, 413 .eeprom_read = ath_usb_eeprom_read, 414 }; 415 416 static int ath9k_init_queues(struct ath9k_htc_priv *priv) 417 { 418 struct ath_common *common = ath9k_hw_common(priv->ah); 419 int i; 420 421 for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++) 422 priv->hwq_map[i] = -1; 423 424 priv->beacon.beaconq = ath9k_hw_beaconq_setup(priv->ah); 425 if (priv->beacon.beaconq == -1) { 426 ath_err(common, "Unable to setup BEACON xmit queue\n"); 427 goto err; 428 } 429 430 priv->cabq = ath9k_htc_cabq_setup(priv); 431 if (priv->cabq == -1) { 432 ath_err(common, "Unable to setup CAB xmit queue\n"); 433 goto err; 434 } 435 436 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BE)) { 437 ath_err(common, "Unable to setup xmit queue for BE traffic\n"); 438 goto err; 439 } 440 441 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BK)) { 442 ath_err(common, "Unable to setup xmit queue for BK traffic\n"); 443 goto err; 444 } 445 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VI)) { 446 ath_err(common, "Unable to setup xmit queue for VI traffic\n"); 447 goto err; 448 } 449 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VO)) { 450 ath_err(common, "Unable to setup xmit queue for VO traffic\n"); 451 goto err; 452 } 453 454 return 0; 455 456 err: 457 return -EINVAL; 458 } 459 460 static void ath9k_init_misc(struct ath9k_htc_priv *priv) 461 { 462 struct ath_common *common = ath9k_hw_common(priv->ah); 463 464 memcpy(common->bssidmask, ath_bcast_mac, ETH_ALEN); 465 466 common->last_rssi = ATH_RSSI_DUMMY_MARKER; 467 priv->ah->opmode = NL80211_IFTYPE_STATION; 468 469 priv->spec_priv.ah = priv->ah; 470 priv->spec_priv.spec_config.enabled = 0; 471 priv->spec_priv.spec_config.short_repeat = false; 472 priv->spec_priv.spec_config.count = 8; 473 priv->spec_priv.spec_config.endless = false; 474 priv->spec_priv.spec_config.period = 0x12; 475 priv->spec_priv.spec_config.fft_period = 0x02; 476 } 477 478 static int ath9k_init_priv(struct ath9k_htc_priv *priv, 479 u16 devid, char *product, 480 u32 drv_info) 481 { 482 struct ath_hw *ah = NULL; 483 struct ath_common *common; 484 int i, ret = 0, csz = 0; 485 486 ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL); 487 if (!ah) 488 return -ENOMEM; 489 490 ah->dev = priv->dev; 491 ah->hw = priv->hw; 492 ah->hw_version.devid = devid; 493 ah->hw_version.usbdev = drv_info; 494 ah->ah_flags |= AH_USE_EEPROM; 495 ah->reg_ops.read = ath9k_regread; 496 ah->reg_ops.multi_read = ath9k_multi_regread; 497 ah->reg_ops.write = ath9k_regwrite; 498 ah->reg_ops.enable_write_buffer = ath9k_enable_regwrite_buffer; 499 ah->reg_ops.write_flush = ath9k_regwrite_flush; 500 ah->reg_ops.rmw = ath9k_reg_rmw; 501 priv->ah = ah; 502 503 common = ath9k_hw_common(ah); 504 common->ops = &ah->reg_ops; 505 common->ps_ops = &ath9k_htc_ps_ops; 506 common->bus_ops = &ath9k_usb_bus_ops; 507 common->ah = ah; 508 common->hw = priv->hw; 509 common->priv = priv; 510 common->debug_mask = ath9k_debug; 511 common->btcoex_enabled = ath9k_htc_btcoex_enable == 1; 512 set_bit(ATH_OP_INVALID, &common->op_flags); 513 514 spin_lock_init(&priv->beacon_lock); 515 spin_lock_init(&priv->tx.tx_lock); 516 mutex_init(&priv->mutex); 517 mutex_init(&priv->htc_pm_lock); 518 tasklet_init(&priv->rx_tasklet, ath9k_rx_tasklet, 519 (unsigned long)priv); 520 tasklet_init(&priv->tx_failed_tasklet, ath9k_tx_failed_tasklet, 521 (unsigned long)priv); 522 INIT_DELAYED_WORK(&priv->ani_work, ath9k_htc_ani_work); 523 INIT_WORK(&priv->ps_work, ath9k_ps_work); 524 INIT_WORK(&priv->fatal_work, ath9k_fatal_work); 525 setup_timer(&priv->tx.cleanup_timer, ath9k_htc_tx_cleanup_timer, 526 (unsigned long)priv); 527 528 /* 529 * Cache line size is used to size and align various 530 * structures used to communicate with the hardware. 531 */ 532 ath_read_cachesize(common, &csz); 533 common->cachelsz = csz << 2; /* convert to bytes */ 534 535 ret = ath9k_hw_init(ah); 536 if (ret) { 537 ath_err(common, 538 "Unable to initialize hardware; initialization status: %d\n", 539 ret); 540 goto err_hw; 541 } 542 543 ret = ath9k_init_queues(priv); 544 if (ret) 545 goto err_queues; 546 547 for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++) 548 priv->beacon.bslot[i] = NULL; 549 priv->beacon.slottime = ATH9K_SLOT_TIME_9; 550 551 ath9k_cmn_init_channels_rates(common); 552 ath9k_cmn_init_crypto(ah); 553 ath9k_init_misc(priv); 554 ath9k_htc_init_btcoex(priv, product); 555 556 return 0; 557 558 err_queues: 559 ath9k_hw_deinit(ah); 560 err_hw: 561 562 kfree(ah); 563 priv->ah = NULL; 564 565 return ret; 566 } 567 568 static const struct ieee80211_iface_limit if_limits[] = { 569 { .max = 2, .types = BIT(NL80211_IFTYPE_STATION) | 570 BIT(NL80211_IFTYPE_P2P_CLIENT) }, 571 { .max = 2, .types = BIT(NL80211_IFTYPE_AP) | 572 #ifdef CONFIG_MAC80211_MESH 573 BIT(NL80211_IFTYPE_MESH_POINT) | 574 #endif 575 BIT(NL80211_IFTYPE_P2P_GO) }, 576 }; 577 578 static const struct ieee80211_iface_combination if_comb = { 579 .limits = if_limits, 580 .n_limits = ARRAY_SIZE(if_limits), 581 .max_interfaces = 2, 582 .num_different_channels = 1, 583 }; 584 585 static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv, 586 struct ieee80211_hw *hw) 587 { 588 struct ath_hw *ah = priv->ah; 589 struct ath_common *common = ath9k_hw_common(priv->ah); 590 struct base_eep_header *pBase; 591 592 hw->flags = IEEE80211_HW_SIGNAL_DBM | 593 IEEE80211_HW_AMPDU_AGGREGATION | 594 IEEE80211_HW_SPECTRUM_MGMT | 595 IEEE80211_HW_HAS_RATE_CONTROL | 596 IEEE80211_HW_RX_INCLUDES_FCS | 597 IEEE80211_HW_PS_NULLFUNC_STACK | 598 IEEE80211_HW_REPORTS_TX_ACK_STATUS | 599 IEEE80211_HW_MFP_CAPABLE | 600 IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING; 601 602 if (ath9k_ps_enable) 603 hw->flags |= IEEE80211_HW_SUPPORTS_PS; 604 605 hw->wiphy->interface_modes = 606 BIT(NL80211_IFTYPE_STATION) | 607 BIT(NL80211_IFTYPE_ADHOC) | 608 BIT(NL80211_IFTYPE_AP) | 609 BIT(NL80211_IFTYPE_P2P_GO) | 610 BIT(NL80211_IFTYPE_P2P_CLIENT) | 611 BIT(NL80211_IFTYPE_MESH_POINT); 612 613 hw->wiphy->iface_combinations = &if_comb; 614 hw->wiphy->n_iface_combinations = 1; 615 616 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; 617 618 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN | 619 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; 620 621 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS; 622 623 hw->queues = 4; 624 hw->max_listen_interval = 1; 625 626 hw->vif_data_size = sizeof(struct ath9k_htc_vif); 627 hw->sta_data_size = sizeof(struct ath9k_htc_sta); 628 629 /* tx_frame_hdr is larger than tx_mgmt_hdr anyway */ 630 hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) + 631 sizeof(struct htc_frame_hdr) + 4; 632 633 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ) 634 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = 635 &common->sbands[IEEE80211_BAND_2GHZ]; 636 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ) 637 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = 638 &common->sbands[IEEE80211_BAND_5GHZ]; 639 640 ath9k_cmn_reload_chainmask(ah); 641 642 pBase = ath9k_htc_get_eeprom_base(priv); 643 if (pBase) { 644 hw->wiphy->available_antennas_rx = pBase->rxMask; 645 hw->wiphy->available_antennas_tx = pBase->txMask; 646 } 647 648 SET_IEEE80211_PERM_ADDR(hw, common->macaddr); 649 } 650 651 static int ath9k_init_firmware_version(struct ath9k_htc_priv *priv) 652 { 653 struct ieee80211_hw *hw = priv->hw; 654 struct wmi_fw_version cmd_rsp; 655 int ret; 656 657 memset(&cmd_rsp, 0, sizeof(cmd_rsp)); 658 659 WMI_CMD(WMI_GET_FW_VERSION); 660 if (ret) 661 return -EINVAL; 662 663 priv->fw_version_major = be16_to_cpu(cmd_rsp.major); 664 priv->fw_version_minor = be16_to_cpu(cmd_rsp.minor); 665 666 snprintf(hw->wiphy->fw_version, sizeof(hw->wiphy->fw_version), "%d.%d", 667 priv->fw_version_major, 668 priv->fw_version_minor); 669 670 dev_info(priv->dev, "ath9k_htc: FW Version: %d.%d\n", 671 priv->fw_version_major, 672 priv->fw_version_minor); 673 674 /* 675 * Check if the available FW matches the driver's 676 * required version. 677 */ 678 if (priv->fw_version_major != MAJOR_VERSION_REQ || 679 priv->fw_version_minor < MINOR_VERSION_REQ) { 680 dev_err(priv->dev, "ath9k_htc: Please upgrade to FW version %d.%d\n", 681 MAJOR_VERSION_REQ, MINOR_VERSION_REQ); 682 return -EINVAL; 683 } 684 685 return 0; 686 } 687 688 static int ath9k_init_device(struct ath9k_htc_priv *priv, 689 u16 devid, char *product, u32 drv_info) 690 { 691 struct ieee80211_hw *hw = priv->hw; 692 struct ath_common *common; 693 struct ath_hw *ah; 694 int error = 0; 695 struct ath_regulatory *reg; 696 char hw_name[64]; 697 698 /* Bring up device */ 699 error = ath9k_init_priv(priv, devid, product, drv_info); 700 if (error != 0) 701 goto err_init; 702 703 ah = priv->ah; 704 common = ath9k_hw_common(ah); 705 ath9k_set_hw_capab(priv, hw); 706 707 error = ath9k_init_firmware_version(priv); 708 if (error != 0) 709 goto err_fw; 710 711 /* Initialize regulatory */ 712 error = ath_regd_init(&common->regulatory, priv->hw->wiphy, 713 ath9k_reg_notifier); 714 if (error) 715 goto err_regd; 716 717 reg = &common->regulatory; 718 719 /* Setup TX */ 720 error = ath9k_tx_init(priv); 721 if (error != 0) 722 goto err_tx; 723 724 /* Setup RX */ 725 error = ath9k_rx_init(priv); 726 if (error != 0) 727 goto err_rx; 728 729 ath9k_hw_disable(priv->ah); 730 #ifdef CONFIG_MAC80211_LEDS 731 /* must be initialized before ieee80211_register_hw */ 732 priv->led_cdev.default_trigger = ieee80211_create_tpt_led_trigger(priv->hw, 733 IEEE80211_TPT_LEDTRIG_FL_RADIO, ath9k_htc_tpt_blink, 734 ARRAY_SIZE(ath9k_htc_tpt_blink)); 735 #endif 736 737 /* Register with mac80211 */ 738 error = ieee80211_register_hw(hw); 739 if (error) 740 goto err_register; 741 742 /* Handle world regulatory */ 743 if (!ath_is_world_regd(reg)) { 744 error = regulatory_hint(hw->wiphy, reg->alpha2); 745 if (error) 746 goto err_world; 747 } 748 749 error = ath9k_htc_init_debug(priv->ah); 750 if (error) { 751 ath_err(common, "Unable to create debugfs files\n"); 752 goto err_world; 753 } 754 755 ath_dbg(common, CONFIG, 756 "WMI:%d, BCN:%d, CAB:%d, UAPSD:%d, MGMT:%d, BE:%d, BK:%d, VI:%d, VO:%d\n", 757 priv->wmi_cmd_ep, 758 priv->beacon_ep, 759 priv->cab_ep, 760 priv->uapsd_ep, 761 priv->mgmt_ep, 762 priv->data_be_ep, 763 priv->data_bk_ep, 764 priv->data_vi_ep, 765 priv->data_vo_ep); 766 767 ath9k_hw_name(priv->ah, hw_name, sizeof(hw_name)); 768 wiphy_info(hw->wiphy, "%s\n", hw_name); 769 770 ath9k_init_leds(priv); 771 ath9k_start_rfkill_poll(priv); 772 773 return 0; 774 775 err_world: 776 ieee80211_unregister_hw(hw); 777 err_register: 778 ath9k_rx_cleanup(priv); 779 err_rx: 780 ath9k_tx_cleanup(priv); 781 err_tx: 782 /* Nothing */ 783 err_regd: 784 /* Nothing */ 785 err_fw: 786 ath9k_deinit_priv(priv); 787 err_init: 788 return error; 789 } 790 791 int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev, 792 u16 devid, char *product, u32 drv_info) 793 { 794 struct ieee80211_hw *hw; 795 struct ath9k_htc_priv *priv; 796 int ret; 797 798 hw = ieee80211_alloc_hw(sizeof(struct ath9k_htc_priv), &ath9k_htc_ops); 799 if (!hw) 800 return -ENOMEM; 801 802 priv = hw->priv; 803 priv->hw = hw; 804 priv->htc = htc_handle; 805 priv->dev = dev; 806 htc_handle->drv_priv = priv; 807 SET_IEEE80211_DEV(hw, priv->dev); 808 809 ret = ath9k_htc_wait_for_target(priv); 810 if (ret) 811 goto err_free; 812 813 priv->wmi = ath9k_init_wmi(priv); 814 if (!priv->wmi) { 815 ret = -EINVAL; 816 goto err_free; 817 } 818 819 ret = ath9k_init_htc_services(priv, devid, drv_info); 820 if (ret) 821 goto err_init; 822 823 ret = ath9k_init_device(priv, devid, product, drv_info); 824 if (ret) 825 goto err_init; 826 827 return 0; 828 829 err_init: 830 ath9k_deinit_wmi(priv); 831 err_free: 832 ieee80211_free_hw(hw); 833 return ret; 834 } 835 836 void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug) 837 { 838 if (htc_handle->drv_priv) { 839 840 /* Check if the device has been yanked out. */ 841 if (hotunplug) 842 htc_handle->drv_priv->ah->ah_flags |= AH_UNPLUGGED; 843 844 ath9k_deinit_device(htc_handle->drv_priv); 845 ath9k_deinit_wmi(htc_handle->drv_priv); 846 ieee80211_free_hw(htc_handle->drv_priv->hw); 847 } 848 } 849 850 #ifdef CONFIG_PM 851 852 void ath9k_htc_suspend(struct htc_target *htc_handle) 853 { 854 ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP); 855 } 856 857 int ath9k_htc_resume(struct htc_target *htc_handle) 858 { 859 struct ath9k_htc_priv *priv = htc_handle->drv_priv; 860 int ret; 861 862 ret = ath9k_htc_wait_for_target(priv); 863 if (ret) 864 return ret; 865 866 ret = ath9k_init_htc_services(priv, priv->ah->hw_version.devid, 867 priv->ah->hw_version.usbdev); 868 ath9k_configure_leds(priv); 869 870 return ret; 871 } 872 #endif 873 874 static int __init ath9k_htc_init(void) 875 { 876 if (ath9k_hif_usb_init() < 0) { 877 pr_err("No USB devices found, driver not installed\n"); 878 return -ENODEV; 879 } 880 881 return 0; 882 } 883 module_init(ath9k_htc_init); 884 885 static void __exit ath9k_htc_exit(void) 886 { 887 ath9k_hif_usb_exit(); 888 pr_info("Driver unloaded\n"); 889 } 890 module_exit(ath9k_htc_exit); 891