1042 lines · c
1/*2 * Copyright (c) 2010-2011 Atheros Communications Inc.3 *4 * Permission to use, copy, modify, and/or distribute this software for any5 * purpose with or without fee is hereby granted, provided that the above6 * copyright notice and this permission notice appear in all copies.7 *8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.15 */16 17#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt18 19#include "htc.h"20 21MODULE_AUTHOR("Atheros Communications");22MODULE_LICENSE("Dual BSD/GPL");23MODULE_DESCRIPTION("Atheros driver 802.11n HTC based wireless devices");24 25static unsigned int ath9k_debug = ATH_DBG_DEFAULT;26module_param_named(debug, ath9k_debug, uint, 0);27MODULE_PARM_DESC(debug, "Debugging mask");28 29int htc_modparam_nohwcrypt;30module_param_named(nohwcrypt, htc_modparam_nohwcrypt, int, 0444);31MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption");32 33static int ath9k_htc_btcoex_enable;34module_param_named(btcoex_enable, ath9k_htc_btcoex_enable, int, 0444);35MODULE_PARM_DESC(btcoex_enable, "Enable wifi-BT coexistence");36 37static int ath9k_ps_enable;38module_param_named(ps_enable, ath9k_ps_enable, int, 0444);39MODULE_PARM_DESC(ps_enable, "Enable WLAN PowerSave");40 41int htc_use_dev_fw = 0;42module_param_named(use_dev_fw, htc_use_dev_fw, int, 0444);43MODULE_PARM_DESC(use_dev_fw, "Use development FW version");44 45#ifdef CONFIG_MAC80211_LEDS46int ath9k_htc_led_blink = 1;47module_param_named(blink, ath9k_htc_led_blink, int, 0444);48MODULE_PARM_DESC(blink, "Enable LED blink on activity");49 50static const struct ieee80211_tpt_blink ath9k_htc_tpt_blink[] = {51 { .throughput = 0 * 1024, .blink_time = 334 },52 { .throughput = 1 * 1024, .blink_time = 260 },53 { .throughput = 5 * 1024, .blink_time = 220 },54 { .throughput = 10 * 1024, .blink_time = 190 },55 { .throughput = 20 * 1024, .blink_time = 170 },56 { .throughput = 50 * 1024, .blink_time = 150 },57 { .throughput = 70 * 1024, .blink_time = 130 },58 { .throughput = 100 * 1024, .blink_time = 110 },59 { .throughput = 200 * 1024, .blink_time = 80 },60 { .throughput = 300 * 1024, .blink_time = 50 },61};62#endif63 64static void ath9k_htc_op_ps_wakeup(struct ath_common *common)65{66 ath9k_htc_ps_wakeup(common->priv);67}68 69static void ath9k_htc_op_ps_restore(struct ath_common *common)70{71 ath9k_htc_ps_restore(common->priv);72}73 74static const struct ath_ps_ops ath9k_htc_ps_ops = {75 .wakeup = ath9k_htc_op_ps_wakeup,76 .restore = ath9k_htc_op_ps_restore,77};78 79static int ath9k_htc_wait_for_target(struct ath9k_htc_priv *priv)80{81 unsigned long time_left;82 83 if (atomic_read(&priv->htc->tgt_ready) > 0) {84 atomic_dec(&priv->htc->tgt_ready);85 return 0;86 }87 88 /* Firmware can take up to 50ms to get ready, to be safe use 1 second */89 time_left = wait_for_completion_timeout(&priv->htc->target_wait, HZ);90 if (!time_left) {91 dev_err(priv->dev, "ath9k_htc: Target is unresponsive\n");92 return -ETIMEDOUT;93 }94 95 atomic_dec(&priv->htc->tgt_ready);96 97 return 0;98}99 100static void ath9k_deinit_priv(struct ath9k_htc_priv *priv)101{102 ath9k_hw_deinit(priv->ah);103 kfree(priv->ah);104 priv->ah = NULL;105}106 107static void ath9k_deinit_device(struct ath9k_htc_priv *priv)108{109 struct ieee80211_hw *hw = priv->hw;110 111 wiphy_rfkill_stop_polling(hw->wiphy);112 ath9k_deinit_leds(priv);113 ath9k_htc_deinit_debug(priv);114 ieee80211_unregister_hw(hw);115 ath9k_rx_cleanup(priv);116 ath9k_tx_cleanup(priv);117 ath9k_deinit_priv(priv);118}119 120static inline int ath9k_htc_connect_svc(struct ath9k_htc_priv *priv,121 u16 service_id,122 void (*tx) (void *,123 struct sk_buff *,124 enum htc_endpoint_id,125 bool txok),126 enum htc_endpoint_id *ep_id)127{128 struct htc_service_connreq req;129 130 memset(&req, 0, sizeof(struct htc_service_connreq));131 132 req.service_id = service_id;133 req.ep_callbacks.priv = priv;134 req.ep_callbacks.rx = ath9k_htc_rxep;135 req.ep_callbacks.tx = tx;136 137 return htc_connect_service(priv->htc, &req, ep_id);138}139 140static int ath9k_init_htc_services(struct ath9k_htc_priv *priv, u16 devid,141 u32 drv_info)142{143 int ret;144 145 /* WMI CMD*/146 ret = ath9k_wmi_connect(priv->htc, priv->wmi, &priv->wmi_cmd_ep);147 if (ret)148 goto err;149 150 /* Beacon */151 ret = ath9k_htc_connect_svc(priv, WMI_BEACON_SVC, ath9k_htc_beaconep,152 &priv->beacon_ep);153 if (ret)154 goto err;155 156 /* CAB */157 ret = ath9k_htc_connect_svc(priv, WMI_CAB_SVC, ath9k_htc_txep,158 &priv->cab_ep);159 if (ret)160 goto err;161 162 163 /* UAPSD */164 ret = ath9k_htc_connect_svc(priv, WMI_UAPSD_SVC, ath9k_htc_txep,165 &priv->uapsd_ep);166 if (ret)167 goto err;168 169 /* MGMT */170 ret = ath9k_htc_connect_svc(priv, WMI_MGMT_SVC, ath9k_htc_txep,171 &priv->mgmt_ep);172 if (ret)173 goto err;174 175 /* DATA BE */176 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BE_SVC, ath9k_htc_txep,177 &priv->data_be_ep);178 if (ret)179 goto err;180 181 /* DATA BK */182 ret = ath9k_htc_connect_svc(priv, WMI_DATA_BK_SVC, ath9k_htc_txep,183 &priv->data_bk_ep);184 if (ret)185 goto err;186 187 /* DATA VI */188 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VI_SVC, ath9k_htc_txep,189 &priv->data_vi_ep);190 if (ret)191 goto err;192 193 /* DATA VO */194 ret = ath9k_htc_connect_svc(priv, WMI_DATA_VO_SVC, ath9k_htc_txep,195 &priv->data_vo_ep);196 if (ret)197 goto err;198 199 /*200 * Setup required credits before initializing HTC.201 * This is a bit hacky, but, since queuing is done in202 * the HIF layer, shouldn't matter much.203 */204 205 if (IS_AR7010_DEVICE(drv_info))206 priv->htc->credits = 45;207 else208 priv->htc->credits = 33;209 210 ret = htc_init(priv->htc);211 if (ret)212 goto err;213 214 dev_info(priv->dev, "ath9k_htc: HTC initialized with %d credits\n",215 priv->htc->credits);216 217 return 0;218 219err:220 dev_err(priv->dev, "ath9k_htc: Unable to initialize HTC services\n");221 return ret;222}223 224static void ath9k_reg_notifier(struct wiphy *wiphy,225 struct regulatory_request *request)226{227 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);228 struct ath9k_htc_priv *priv = hw->priv;229 230 ath_reg_notifier_apply(wiphy, request,231 ath9k_hw_regulatory(priv->ah));232}233 234static unsigned int ath9k_regread(void *hw_priv, u32 reg_offset)235{236 struct ath_hw *ah = hw_priv;237 struct ath_common *common = ath9k_hw_common(ah);238 struct ath9k_htc_priv *priv = common->priv;239 __be32 val, reg = cpu_to_be32(reg_offset);240 int r;241 242 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,243 (u8 *) ®, sizeof(reg),244 (u8 *) &val, sizeof(val),245 100);246 if (unlikely(r)) {247 ath_dbg(common, WMI, "REGISTER READ FAILED: (0x%04x, %d)\n",248 reg_offset, r);249 return -1;250 }251 252 return be32_to_cpu(val);253}254 255static void ath9k_multi_regread(void *hw_priv, u32 *addr,256 u32 *val, u16 count)257{258 struct ath_hw *ah = hw_priv;259 struct ath_common *common = ath9k_hw_common(ah);260 struct ath9k_htc_priv *priv = common->priv;261 __be32 tmpaddr[8];262 __be32 tmpval[8];263 int i, ret;264 265 for (i = 0; i < count; i++) {266 tmpaddr[i] = cpu_to_be32(addr[i]);267 }268 269 ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_READ_CMDID,270 (u8 *)tmpaddr , sizeof(u32) * count,271 (u8 *)tmpval, sizeof(u32) * count,272 100);273 if (unlikely(ret)) {274 ath_dbg(common, WMI,275 "Multiple REGISTER READ FAILED (count: %d)\n", count);276 }277 278 for (i = 0; i < count; i++) {279 val[i] = be32_to_cpu(tmpval[i]);280 }281}282 283static void ath9k_regwrite_multi(struct ath_common *common)284{285 struct ath9k_htc_priv *priv = common->priv;286 u32 rsp_status;287 int r;288 289 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,290 (u8 *) &priv->wmi->multi_write,291 sizeof(struct register_write) * priv->wmi->multi_write_idx,292 (u8 *) &rsp_status, sizeof(rsp_status),293 100);294 if (unlikely(r)) {295 ath_dbg(common, WMI,296 "REGISTER WRITE FAILED, multi len: %d\n",297 priv->wmi->multi_write_idx);298 }299 priv->wmi->multi_write_idx = 0;300}301 302static void ath9k_regwrite_single(void *hw_priv, u32 val, u32 reg_offset)303{304 struct ath_hw *ah = hw_priv;305 struct ath_common *common = ath9k_hw_common(ah);306 struct ath9k_htc_priv *priv = common->priv;307 const __be32 buf[2] = {308 cpu_to_be32(reg_offset),309 cpu_to_be32(val),310 };311 int r;312 313 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_WRITE_CMDID,314 (u8 *) &buf, sizeof(buf),315 (u8 *) &val, sizeof(val),316 100);317 if (unlikely(r)) {318 ath_dbg(common, WMI, "REGISTER WRITE FAILED:(0x%04x, %d)\n",319 reg_offset, r);320 }321}322 323static void ath9k_regwrite_buffer(void *hw_priv, u32 val, u32 reg_offset)324{325 struct ath_hw *ah = hw_priv;326 struct ath_common *common = ath9k_hw_common(ah);327 struct ath9k_htc_priv *priv = common->priv;328 329 mutex_lock(&priv->wmi->multi_write_mutex);330 331 /* Store the register/value */332 priv->wmi->multi_write[priv->wmi->multi_write_idx].reg =333 cpu_to_be32(reg_offset);334 priv->wmi->multi_write[priv->wmi->multi_write_idx].val =335 cpu_to_be32(val);336 337 priv->wmi->multi_write_idx++;338 339 /* If the buffer is full, send it out. */340 if (priv->wmi->multi_write_idx == MAX_CMD_NUMBER)341 ath9k_regwrite_multi(common);342 343 mutex_unlock(&priv->wmi->multi_write_mutex);344}345 346static void ath9k_regwrite(void *hw_priv, u32 val, u32 reg_offset)347{348 struct ath_hw *ah = hw_priv;349 struct ath_common *common = ath9k_hw_common(ah);350 struct ath9k_htc_priv *priv = common->priv;351 352 if (atomic_read(&priv->wmi->mwrite_cnt))353 ath9k_regwrite_buffer(hw_priv, val, reg_offset);354 else355 ath9k_regwrite_single(hw_priv, val, reg_offset);356}357 358static void ath9k_enable_regwrite_buffer(void *hw_priv)359{360 struct ath_hw *ah = hw_priv;361 struct ath_common *common = ath9k_hw_common(ah);362 struct ath9k_htc_priv *priv = common->priv;363 364 atomic_inc(&priv->wmi->mwrite_cnt);365}366 367static void ath9k_regwrite_flush(void *hw_priv)368{369 struct ath_hw *ah = hw_priv;370 struct ath_common *common = ath9k_hw_common(ah);371 struct ath9k_htc_priv *priv = common->priv;372 373 atomic_dec(&priv->wmi->mwrite_cnt);374 375 mutex_lock(&priv->wmi->multi_write_mutex);376 377 if (priv->wmi->multi_write_idx)378 ath9k_regwrite_multi(common);379 380 mutex_unlock(&priv->wmi->multi_write_mutex);381}382 383static void ath9k_reg_rmw_buffer(void *hw_priv,384 u32 reg_offset, u32 set, u32 clr)385{386 struct ath_hw *ah = hw_priv;387 struct ath_common *common = ath9k_hw_common(ah);388 struct ath9k_htc_priv *priv = common->priv;389 u32 rsp_status;390 int r;391 392 mutex_lock(&priv->wmi->multi_rmw_mutex);393 394 /* Store the register/value */395 priv->wmi->multi_rmw[priv->wmi->multi_rmw_idx].reg =396 cpu_to_be32(reg_offset);397 priv->wmi->multi_rmw[priv->wmi->multi_rmw_idx].set =398 cpu_to_be32(set);399 priv->wmi->multi_rmw[priv->wmi->multi_rmw_idx].clr =400 cpu_to_be32(clr);401 402 priv->wmi->multi_rmw_idx++;403 404 /* If the buffer is full, send it out. */405 if (priv->wmi->multi_rmw_idx == MAX_RMW_CMD_NUMBER) {406 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_RMW_CMDID,407 (u8 *) &priv->wmi->multi_rmw,408 sizeof(struct register_write) * priv->wmi->multi_rmw_idx,409 (u8 *) &rsp_status, sizeof(rsp_status),410 100);411 if (unlikely(r)) {412 ath_dbg(common, WMI,413 "REGISTER RMW FAILED, multi len: %d\n",414 priv->wmi->multi_rmw_idx);415 }416 priv->wmi->multi_rmw_idx = 0;417 }418 419 mutex_unlock(&priv->wmi->multi_rmw_mutex);420}421 422static void ath9k_reg_rmw_flush(void *hw_priv)423{424 struct ath_hw *ah = hw_priv;425 struct ath_common *common = ath9k_hw_common(ah);426 struct ath9k_htc_priv *priv = common->priv;427 u32 rsp_status;428 int r;429 430 if (test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags))431 return;432 433 atomic_dec(&priv->wmi->m_rmw_cnt);434 435 mutex_lock(&priv->wmi->multi_rmw_mutex);436 437 if (priv->wmi->multi_rmw_idx) {438 r = ath9k_wmi_cmd(priv->wmi, WMI_REG_RMW_CMDID,439 (u8 *) &priv->wmi->multi_rmw,440 sizeof(struct register_rmw) * priv->wmi->multi_rmw_idx,441 (u8 *) &rsp_status, sizeof(rsp_status),442 100);443 if (unlikely(r)) {444 ath_dbg(common, WMI,445 "REGISTER RMW FAILED, multi len: %d\n",446 priv->wmi->multi_rmw_idx);447 }448 priv->wmi->multi_rmw_idx = 0;449 }450 451 mutex_unlock(&priv->wmi->multi_rmw_mutex);452}453 454static void ath9k_enable_rmw_buffer(void *hw_priv)455{456 struct ath_hw *ah = hw_priv;457 struct ath_common *common = ath9k_hw_common(ah);458 struct ath9k_htc_priv *priv = common->priv;459 460 if (test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags))461 return;462 463 atomic_inc(&priv->wmi->m_rmw_cnt);464}465 466static void ath9k_reg_rmw_single(void *hw_priv,467 u32 reg_offset, u32 set, u32 clr)468{469 struct ath_hw *ah = hw_priv;470 struct ath_common *common = ath9k_hw_common(ah);471 struct ath9k_htc_priv *priv = common->priv;472 struct register_rmw buf, buf_ret;473 int ret;474 475 buf.reg = cpu_to_be32(reg_offset);476 buf.set = cpu_to_be32(set);477 buf.clr = cpu_to_be32(clr);478 479 ret = ath9k_wmi_cmd(priv->wmi, WMI_REG_RMW_CMDID,480 (u8 *) &buf, sizeof(buf),481 (u8 *) &buf_ret, sizeof(buf_ret),482 100);483 if (unlikely(ret)) {484 ath_dbg(common, WMI, "REGISTER RMW FAILED:(0x%04x, %d)\n",485 reg_offset, ret);486 }487}488 489static u32 ath9k_reg_rmw(void *hw_priv, u32 reg_offset, u32 set, u32 clr)490{491 struct ath_hw *ah = hw_priv;492 struct ath_common *common = ath9k_hw_common(ah);493 struct ath9k_htc_priv *priv = common->priv;494 495 if (test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags)) {496 u32 val;497 498 val = REG_READ(ah, reg_offset);499 val &= ~clr;500 val |= set;501 REG_WRITE(ah, reg_offset, val);502 503 return 0;504 }505 506 if (atomic_read(&priv->wmi->m_rmw_cnt))507 ath9k_reg_rmw_buffer(hw_priv, reg_offset, set, clr);508 else509 ath9k_reg_rmw_single(hw_priv, reg_offset, set, clr);510 511 return 0;512}513 514static void ath_usb_read_cachesize(struct ath_common *common, int *csz)515{516 *csz = L1_CACHE_BYTES >> 2;517}518 519static bool ath_usb_eeprom_read(struct ath_common *common, u32 off, u16 *data)520{521 struct ath_hw *ah = common->ah;522 523 (void)REG_READ(ah, AR5416_EEPROM_OFFSET + (off << AR5416_EEPROM_S));524 525 if (!ath9k_hw_wait(ah,526 AR_EEPROM_STATUS_DATA(ah),527 AR_EEPROM_STATUS_DATA_BUSY |528 AR_EEPROM_STATUS_DATA_PROT_ACCESS, 0,529 AH_WAIT_TIMEOUT))530 return false;531 532 *data = MS(REG_READ(ah, AR_EEPROM_STATUS_DATA(ah)),533 AR_EEPROM_STATUS_DATA_VAL);534 535 return true;536}537 538static const struct ath_bus_ops ath9k_usb_bus_ops = {539 .ath_bus_type = ATH_USB,540 .read_cachesize = ath_usb_read_cachesize,541 .eeprom_read = ath_usb_eeprom_read,542};543 544static int ath9k_init_queues(struct ath9k_htc_priv *priv)545{546 struct ath_common *common = ath9k_hw_common(priv->ah);547 int i;548 549 for (i = 0; i < ARRAY_SIZE(priv->hwq_map); i++)550 priv->hwq_map[i] = -1;551 552 priv->beacon.beaconq = ath9k_hw_beaconq_setup(priv->ah);553 if (priv->beacon.beaconq == -1) {554 ath_err(common, "Unable to setup BEACON xmit queue\n");555 goto err;556 }557 558 priv->cabq = ath9k_htc_cabq_setup(priv);559 if (priv->cabq == -1) {560 ath_err(common, "Unable to setup CAB xmit queue\n");561 goto err;562 }563 564 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BE)) {565 ath_err(common, "Unable to setup xmit queue for BE traffic\n");566 goto err;567 }568 569 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_BK)) {570 ath_err(common, "Unable to setup xmit queue for BK traffic\n");571 goto err;572 }573 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VI)) {574 ath_err(common, "Unable to setup xmit queue for VI traffic\n");575 goto err;576 }577 if (!ath9k_htc_txq_setup(priv, IEEE80211_AC_VO)) {578 ath_err(common, "Unable to setup xmit queue for VO traffic\n");579 goto err;580 }581 582 return 0;583 584err:585 return -EINVAL;586}587 588static void ath9k_init_misc(struct ath9k_htc_priv *priv)589{590 struct ath_common *common = ath9k_hw_common(priv->ah);591 592 eth_broadcast_addr(common->bssidmask);593 594 common->last_rssi = ATH_RSSI_DUMMY_MARKER;595 priv->ah->opmode = NL80211_IFTYPE_STATION;596 597 priv->spec_priv.ah = priv->ah;598 priv->spec_priv.spec_config.enabled = 0;599 priv->spec_priv.spec_config.short_repeat = true;600 priv->spec_priv.spec_config.count = 8;601 priv->spec_priv.spec_config.endless = false;602 priv->spec_priv.spec_config.period = 0x12;603 priv->spec_priv.spec_config.fft_period = 0x02;604}605 606static int ath9k_init_priv(struct ath9k_htc_priv *priv,607 u16 devid, char *product,608 u32 drv_info)609{610 struct ath_hw *ah = NULL;611 struct ath_common *common;612 int i, ret = 0, csz = 0;613 614 ah = kzalloc(sizeof(struct ath_hw), GFP_KERNEL);615 if (!ah)616 return -ENOMEM;617 618 ah->dev = priv->dev;619 ah->hw = priv->hw;620 ah->hw_version.devid = devid;621 ah->hw_version.usbdev = drv_info;622 ah->ah_flags |= AH_USE_EEPROM;623 ah->reg_ops.read = ath9k_regread;624 ah->reg_ops.multi_read = ath9k_multi_regread;625 ah->reg_ops.write = ath9k_regwrite;626 ah->reg_ops.enable_write_buffer = ath9k_enable_regwrite_buffer;627 ah->reg_ops.write_flush = ath9k_regwrite_flush;628 ah->reg_ops.enable_rmw_buffer = ath9k_enable_rmw_buffer;629 ah->reg_ops.rmw_flush = ath9k_reg_rmw_flush;630 ah->reg_ops.rmw = ath9k_reg_rmw;631 priv->ah = ah;632 633 common = ath9k_hw_common(ah);634 common->ops = &ah->reg_ops;635 common->ps_ops = &ath9k_htc_ps_ops;636 common->bus_ops = &ath9k_usb_bus_ops;637 common->ah = ah;638 common->hw = priv->hw;639 common->priv = priv;640 common->debug_mask = ath9k_debug;641 common->btcoex_enabled = ath9k_htc_btcoex_enable == 1;642 set_bit(ATH_OP_INVALID, &common->op_flags);643 644 spin_lock_init(&priv->beacon_lock);645 spin_lock_init(&priv->tx.tx_lock);646 mutex_init(&priv->mutex);647 mutex_init(&priv->htc_pm_lock);648 tasklet_setup(&priv->rx_tasklet, ath9k_rx_tasklet);649 tasklet_setup(&priv->tx_failed_tasklet, ath9k_tx_failed_tasklet);650 INIT_DELAYED_WORK(&priv->ani_work, ath9k_htc_ani_work);651 INIT_WORK(&priv->ps_work, ath9k_ps_work);652 INIT_WORK(&priv->fatal_work, ath9k_fatal_work);653 timer_setup(&priv->tx.cleanup_timer, ath9k_htc_tx_cleanup_timer, 0);654 655 /*656 * Cache line size is used to size and align various657 * structures used to communicate with the hardware.658 */659 ath_read_cachesize(common, &csz);660 common->cachelsz = csz << 2; /* convert to bytes */661 662 ret = ath9k_hw_init(ah);663 if (ret) {664 ath_err(common,665 "Unable to initialize hardware; initialization status: %d\n",666 ret);667 goto err_hw;668 }669 670 ret = ath9k_init_queues(priv);671 if (ret)672 goto err_queues;673 674 for (i = 0; i < ATH9K_HTC_MAX_BCN_VIF; i++)675 priv->beacon.bslot[i] = NULL;676 priv->beacon.slottime = 9;677 678 ath9k_cmn_init_channels_rates(common);679 ath9k_cmn_init_crypto(ah);680 ath9k_init_misc(priv);681 ath9k_htc_init_btcoex(priv, product);682 683 return 0;684 685err_queues:686 ath9k_hw_deinit(ah);687err_hw:688 689 kfree(ah);690 priv->ah = NULL;691 692 return ret;693}694 695static const struct ieee80211_iface_limit if_limits[] = {696 { .max = 2, .types = BIT(NL80211_IFTYPE_STATION) |697 BIT(NL80211_IFTYPE_P2P_CLIENT) },698 { .max = 2, .types = BIT(NL80211_IFTYPE_AP) |699#ifdef CONFIG_MAC80211_MESH700 BIT(NL80211_IFTYPE_MESH_POINT) |701#endif702 BIT(NL80211_IFTYPE_P2P_GO) },703};704 705static const struct ieee80211_iface_combination if_comb = {706 .limits = if_limits,707 .n_limits = ARRAY_SIZE(if_limits),708 .max_interfaces = 2,709 .num_different_channels = 1,710};711 712static void ath9k_set_hw_capab(struct ath9k_htc_priv *priv,713 struct ieee80211_hw *hw)714{715 struct ath_hw *ah = priv->ah;716 struct ath_common *common = ath9k_hw_common(priv->ah);717 struct base_eep_header *pBase;718 719 ieee80211_hw_set(hw, HOST_BROADCAST_PS_BUFFERING);720 ieee80211_hw_set(hw, MFP_CAPABLE);721 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);722 ieee80211_hw_set(hw, PS_NULLFUNC_STACK);723 ieee80211_hw_set(hw, RX_INCLUDES_FCS);724 ieee80211_hw_set(hw, HAS_RATE_CONTROL);725 ieee80211_hw_set(hw, SPECTRUM_MGMT);726 ieee80211_hw_set(hw, SIGNAL_DBM);727 ieee80211_hw_set(hw, AMPDU_AGGREGATION);728 ieee80211_hw_set(hw, DOESNT_SUPPORT_QOS_NDP);729 730 if (ath9k_ps_enable)731 ieee80211_hw_set(hw, SUPPORTS_PS);732 733 hw->wiphy->interface_modes =734 BIT(NL80211_IFTYPE_STATION) |735 BIT(NL80211_IFTYPE_ADHOC) |736 BIT(NL80211_IFTYPE_AP) |737 BIT(NL80211_IFTYPE_P2P_GO) |738 BIT(NL80211_IFTYPE_P2P_CLIENT) |739 BIT(NL80211_IFTYPE_MESH_POINT) |740 BIT(NL80211_IFTYPE_OCB);741 742 hw->wiphy->iface_combinations = &if_comb;743 hw->wiphy->n_iface_combinations = 1;744 745 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;746 747 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN |748 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL |749 WIPHY_FLAG_HAS_CHANNEL_SWITCH;750 751 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;752 753 hw->queues = 4;754 hw->max_listen_interval = 1;755 756 hw->vif_data_size = sizeof(struct ath9k_htc_vif);757 hw->sta_data_size = sizeof(struct ath9k_htc_sta);758 759 /* tx_frame_hdr is larger than tx_mgmt_hdr anyway */760 hw->extra_tx_headroom = sizeof(struct tx_frame_hdr) +761 sizeof(struct htc_frame_hdr) + 4;762 763 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)764 hw->wiphy->bands[NL80211_BAND_2GHZ] =765 &common->sbands[NL80211_BAND_2GHZ];766 if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_5GHZ)767 hw->wiphy->bands[NL80211_BAND_5GHZ] =768 &common->sbands[NL80211_BAND_5GHZ];769 770 ath9k_cmn_reload_chainmask(ah);771 772 pBase = ath9k_htc_get_eeprom_base(priv);773 if (pBase) {774 hw->wiphy->available_antennas_rx = pBase->rxMask;775 hw->wiphy->available_antennas_tx = pBase->txMask;776 }777 778 SET_IEEE80211_PERM_ADDR(hw, common->macaddr);779 780 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);781 wiphy_ext_feature_set(hw->wiphy,782 NL80211_EXT_FEATURE_MULTICAST_REGISTRATIONS);783}784 785static int ath9k_init_firmware_version(struct ath9k_htc_priv *priv)786{787 struct ieee80211_hw *hw = priv->hw;788 struct wmi_fw_version cmd_rsp;789 int ret;790 791 memset(&cmd_rsp, 0, sizeof(cmd_rsp));792 793 WMI_CMD(WMI_GET_FW_VERSION);794 if (ret)795 return -EINVAL;796 797 priv->fw_version_major = be16_to_cpu(cmd_rsp.major);798 priv->fw_version_minor = be16_to_cpu(cmd_rsp.minor);799 800 snprintf(hw->wiphy->fw_version, sizeof(hw->wiphy->fw_version), "%d.%d",801 priv->fw_version_major,802 priv->fw_version_minor);803 804 dev_info(priv->dev, "ath9k_htc: FW Version: %d.%d\n",805 priv->fw_version_major,806 priv->fw_version_minor);807 808 /*809 * Check if the available FW matches the driver's810 * required version.811 */812 if (priv->fw_version_major != MAJOR_VERSION_REQ ||813 priv->fw_version_minor < MINOR_VERSION_REQ) {814 dev_err(priv->dev, "ath9k_htc: Please upgrade to FW version %d.%d\n",815 MAJOR_VERSION_REQ, MINOR_VERSION_REQ);816 return -EINVAL;817 }818 819 if (priv->fw_version_major == 1 && priv->fw_version_minor < 4)820 set_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags);821 822 dev_info(priv->dev, "FW RMW support: %s\n",823 test_bit(HTC_FWFLAG_NO_RMW, &priv->fw_flags) ? "Off" : "On");824 825 return 0;826}827 828static int ath9k_init_device(struct ath9k_htc_priv *priv,829 u16 devid, char *product, u32 drv_info)830{831 struct ieee80211_hw *hw = priv->hw;832 struct ath_common *common;833 struct ath_hw *ah;834 int error = 0;835 struct ath_regulatory *reg;836 char hw_name[64];837 838 /* Bring up device */839 error = ath9k_init_priv(priv, devid, product, drv_info);840 if (error != 0)841 goto err_init;842 843 ah = priv->ah;844 common = ath9k_hw_common(ah);845 ath9k_set_hw_capab(priv, hw);846 847 error = ath9k_init_firmware_version(priv);848 if (error != 0)849 goto err_fw;850 851 /* Initialize regulatory */852 error = ath_regd_init(&common->regulatory, priv->hw->wiphy,853 ath9k_reg_notifier);854 if (error)855 goto err_regd;856 857 reg = &common->regulatory;858 859 /* Setup TX */860 error = ath9k_tx_init(priv);861 if (error != 0)862 goto err_tx;863 864 /* Setup RX */865 error = ath9k_rx_init(priv);866 if (error != 0)867 goto err_rx;868 869 ath9k_hw_disable(priv->ah);870#ifdef CONFIG_MAC80211_LEDS871 /* must be initialized before ieee80211_register_hw */872 priv->led_cdev.default_trigger = ieee80211_create_tpt_led_trigger(priv->hw,873 IEEE80211_TPT_LEDTRIG_FL_RADIO, ath9k_htc_tpt_blink,874 ARRAY_SIZE(ath9k_htc_tpt_blink));875#endif876 877 /* Register with mac80211 */878 error = ieee80211_register_hw(hw);879 if (error)880 goto err_register;881 882 /* Handle world regulatory */883 if (!ath_is_world_regd(reg)) {884 error = regulatory_hint(hw->wiphy, reg->alpha2);885 if (error)886 goto err_world;887 }888 889 error = ath9k_htc_init_debug(priv->ah);890 if (error) {891 ath_err(common, "Unable to create debugfs files\n");892 goto err_world;893 }894 895 ath_dbg(common, CONFIG,896 "WMI:%d, BCN:%d, CAB:%d, UAPSD:%d, MGMT:%d, BE:%d, BK:%d, VI:%d, VO:%d\n",897 priv->wmi_cmd_ep,898 priv->beacon_ep,899 priv->cab_ep,900 priv->uapsd_ep,901 priv->mgmt_ep,902 priv->data_be_ep,903 priv->data_bk_ep,904 priv->data_vi_ep,905 priv->data_vo_ep);906 907 ath9k_hw_name(priv->ah, hw_name, sizeof(hw_name));908 wiphy_info(hw->wiphy, "%s\n", hw_name);909 910 ath9k_init_leds(priv);911 ath9k_start_rfkill_poll(priv);912 913 return 0;914 915err_world:916 ieee80211_unregister_hw(hw);917err_register:918 ath9k_rx_cleanup(priv);919err_rx:920 ath9k_tx_cleanup(priv);921err_tx:922 /* Nothing */923err_regd:924 /* Nothing */925err_fw:926 ath9k_deinit_priv(priv);927err_init:928 return error;929}930 931int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev,932 u16 devid, char *product, u32 drv_info)933{934 struct hif_device_usb *hif_dev;935 struct ath9k_htc_priv *priv;936 struct ieee80211_hw *hw;937 int ret;938 939 hw = ieee80211_alloc_hw(sizeof(struct ath9k_htc_priv), &ath9k_htc_ops);940 if (!hw)941 return -ENOMEM;942 943 priv = hw->priv;944 priv->hw = hw;945 priv->htc = htc_handle;946 priv->dev = dev;947 SET_IEEE80211_DEV(hw, priv->dev);948 949 ret = ath9k_htc_wait_for_target(priv);950 if (ret)951 goto err_free;952 953 priv->wmi = ath9k_init_wmi(priv);954 if (!priv->wmi) {955 ret = -EINVAL;956 goto err_free;957 }958 959 ret = ath9k_init_htc_services(priv, devid, drv_info);960 if (ret)961 goto err_init;962 963 ret = ath9k_init_device(priv, devid, product, drv_info);964 if (ret)965 goto err_init;966 967 htc_handle->drv_priv = priv;968 969 /* Allow ath9k_wmi_event_tasklet() to operate. */970 smp_wmb();971 priv->initialized = true;972 973 return 0;974 975err_init:976 ath9k_stop_wmi(priv);977 hif_dev = htc_handle->hif_dev;978 ath9k_hif_usb_dealloc_urbs(hif_dev);979 ath9k_destroy_wmi(priv);980err_free:981 ieee80211_free_hw(hw);982 return ret;983}984 985void ath9k_htc_disconnect_device(struct htc_target *htc_handle, bool hotunplug)986{987 if (htc_handle->drv_priv) {988 989 /* Check if the device has been yanked out. */990 if (hotunplug)991 htc_handle->drv_priv->ah->ah_flags |= AH_UNPLUGGED;992 993 ath9k_deinit_device(htc_handle->drv_priv);994 ath9k_stop_wmi(htc_handle->drv_priv);995 ath9k_hif_usb_dealloc_urbs(htc_handle->hif_dev);996 ath9k_destroy_wmi(htc_handle->drv_priv);997 ieee80211_free_hw(htc_handle->drv_priv->hw);998 }999}1000 1001#ifdef CONFIG_PM1002 1003void ath9k_htc_suspend(struct htc_target *htc_handle)1004{1005 ath9k_htc_setpower(htc_handle->drv_priv, ATH9K_PM_FULL_SLEEP);1006}1007 1008int ath9k_htc_resume(struct htc_target *htc_handle)1009{1010 struct ath9k_htc_priv *priv = htc_handle->drv_priv;1011 int ret;1012 1013 ret = ath9k_htc_wait_for_target(priv);1014 if (ret)1015 return ret;1016 1017 ret = ath9k_init_htc_services(priv, priv->ah->hw_version.devid,1018 priv->ah->hw_version.usbdev);1019 ath9k_configure_leds(priv);1020 1021 return ret;1022}1023#endif1024 1025static int __init ath9k_htc_init(void)1026{1027 if (ath9k_hif_usb_init() < 0) {1028 pr_err("No USB devices found, driver not installed\n");1029 return -ENODEV;1030 }1031 1032 return 0;1033}1034module_init(ath9k_htc_init);1035 1036static void __exit ath9k_htc_exit(void)1037{1038 ath9k_hif_usb_exit();1039 pr_info("Driver unloaded\n");1040}1041module_exit(ath9k_htc_exit);1042