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1/*2 * Copyright (c) 2004-2011 Atheros Communications Inc.3 * Copyright (c) 2011-2012 Qualcomm Atheros, Inc.4 *5 * Permission to use, copy, modify, and/or distribute this software for any6 * purpose with or without fee is hereby granted, provided that the above7 * copyright notice and this permission notice appear in all copies.8 *9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.16 */17 18#include "core.h"19 20#include <linux/module.h>21#include <linux/moduleparam.h>22#include <linux/export.h>23#include <linux/vmalloc.h>24 25#include "debug.h"26#include "hif-ops.h"27#include "htc-ops.h"28#include "cfg80211.h"29 30unsigned int debug_mask;31static unsigned int suspend_mode;32static unsigned int wow_mode;33static unsigned int uart_debug;34static unsigned int uart_rate = 115200;35static unsigned int ath6kl_p2p;36static unsigned int testmode;37static unsigned int recovery_enable;38static unsigned int heart_beat_poll;39 40module_param(debug_mask, uint, 0644);41module_param(suspend_mode, uint, 0644);42module_param(wow_mode, uint, 0644);43module_param(uart_debug, uint, 0644);44module_param(uart_rate, uint, 0644);45module_param(ath6kl_p2p, uint, 0644);46module_param(testmode, uint, 0644);47module_param(recovery_enable, uint, 0644);48module_param(heart_beat_poll, uint, 0644);49MODULE_PARM_DESC(recovery_enable, "Enable recovery from firmware error");50MODULE_PARM_DESC(heart_beat_poll,51 "Enable fw error detection periodic polling in msecs - Also set recovery_enable for this to be effective");52 53 54void ath6kl_core_tx_complete(struct ath6kl *ar, struct sk_buff *skb)55{56 ath6kl_htc_tx_complete(ar, skb);57}58EXPORT_SYMBOL(ath6kl_core_tx_complete);59 60void ath6kl_core_rx_complete(struct ath6kl *ar, struct sk_buff *skb, u8 pipe)61{62 ath6kl_htc_rx_complete(ar, skb, pipe);63}64EXPORT_SYMBOL(ath6kl_core_rx_complete);65 66int ath6kl_core_init(struct ath6kl *ar, enum ath6kl_htc_type htc_type)67{68 struct ath6kl_bmi_target_info targ_info;69 struct wireless_dev *wdev;70 int ret = 0, i;71 72 switch (htc_type) {73 case ATH6KL_HTC_TYPE_MBOX:74 ath6kl_htc_mbox_attach(ar);75 break;76 case ATH6KL_HTC_TYPE_PIPE:77 ath6kl_htc_pipe_attach(ar);78 break;79 default:80 WARN_ON(1);81 return -ENOMEM;82 }83 84 ar->ath6kl_wq = create_singlethread_workqueue("ath6kl");85 if (!ar->ath6kl_wq)86 return -ENOMEM;87 88 ret = ath6kl_bmi_init(ar);89 if (ret)90 goto err_wq;91 92 /*93 * Turn on power to get hardware (target) version and leave power94 * on delibrately as we will boot the hardware anyway within few95 * seconds.96 */97 ret = ath6kl_hif_power_on(ar);98 if (ret)99 goto err_bmi_cleanup;100 101 ret = ath6kl_bmi_get_target_info(ar, &targ_info);102 if (ret)103 goto err_power_off;104 105 ar->version.target_ver = le32_to_cpu(targ_info.version);106 ar->target_type = le32_to_cpu(targ_info.type);107 ar->wiphy->hw_version = le32_to_cpu(targ_info.version);108 109 ret = ath6kl_init_hw_params(ar);110 if (ret)111 goto err_power_off;112 113 ar->htc_target = ath6kl_htc_create(ar);114 115 if (!ar->htc_target) {116 ret = -ENOMEM;117 goto err_power_off;118 }119 120 ar->testmode = testmode;121 122 ret = ath6kl_init_fetch_firmwares(ar);123 if (ret)124 goto err_htc_cleanup;125 126 /* FIXME: we should free all firmwares in the error cases below */127 128 /*129 * Backwards compatibility support for older ar6004 firmware images130 * which do not set these feature flags.131 */132 if (ar->target_type == TARGET_TYPE_AR6004 &&133 ar->fw_api <= 4) {134 __set_bit(ATH6KL_FW_CAPABILITY_64BIT_RATES,135 ar->fw_capabilities);136 __set_bit(ATH6KL_FW_CAPABILITY_AP_INACTIVITY_MINS,137 ar->fw_capabilities);138 139 if (ar->hw.id == AR6004_HW_1_3_VERSION)140 __set_bit(ATH6KL_FW_CAPABILITY_MAP_LP_ENDPOINT,141 ar->fw_capabilities);142 }143 144 /* Indicate that WMI is enabled (although not ready yet) */145 set_bit(WMI_ENABLED, &ar->flag);146 ar->wmi = ath6kl_wmi_init(ar);147 if (!ar->wmi) {148 ath6kl_err("failed to initialize wmi\n");149 ret = -EIO;150 goto err_htc_cleanup;151 }152 153 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi);154 155 /* setup access class priority mappings */156 ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest */157 ar->ac_stream_pri_map[WMM_AC_BE] = 1;158 ar->ac_stream_pri_map[WMM_AC_VI] = 2;159 ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */160 161 /* allocate some buffers that handle larger AMSDU frames */162 ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS);163 164 ath6kl_cookie_init(ar);165 166 ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER |167 ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST;168 169 if (suspend_mode &&170 suspend_mode >= WLAN_POWER_STATE_CUT_PWR &&171 suspend_mode <= WLAN_POWER_STATE_WOW)172 ar->suspend_mode = suspend_mode;173 else174 ar->suspend_mode = 0;175 176 if (suspend_mode == WLAN_POWER_STATE_WOW &&177 (wow_mode == WLAN_POWER_STATE_CUT_PWR ||178 wow_mode == WLAN_POWER_STATE_DEEP_SLEEP))179 ar->wow_suspend_mode = wow_mode;180 else181 ar->wow_suspend_mode = 0;182 183 if (uart_debug)184 ar->conf_flags |= ATH6KL_CONF_UART_DEBUG;185 ar->hw.uarttx_rate = uart_rate;186 187 set_bit(FIRST_BOOT, &ar->flag);188 189 ath6kl_debug_init(ar);190 191 ret = ath6kl_init_hw_start(ar);192 if (ret) {193 ath6kl_err("Failed to start hardware: %d\n", ret);194 goto err_rxbuf_cleanup;195 }196 197 /* give our connected endpoints some buffers */198 ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep);199 ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]);200 201 ret = ath6kl_cfg80211_init(ar);202 if (ret)203 goto err_rxbuf_cleanup;204 205 ret = ath6kl_debug_init_fs(ar);206 if (ret) {207 wiphy_unregister(ar->wiphy);208 goto err_rxbuf_cleanup;209 }210 211 for (i = 0; i < ar->vif_max; i++)212 ar->avail_idx_map |= BIT(i);213 214 rtnl_lock();215 wiphy_lock(ar->wiphy);216 217 /* Add an initial station interface */218 wdev = ath6kl_interface_add(ar, "wlan%d", NET_NAME_ENUM,219 NL80211_IFTYPE_STATION, 0, INFRA_NETWORK);220 221 wiphy_unlock(ar->wiphy);222 rtnl_unlock();223 224 if (!wdev) {225 ath6kl_err("Failed to instantiate a network device\n");226 ret = -ENOMEM;227 wiphy_unregister(ar->wiphy);228 goto err_rxbuf_cleanup;229 }230 231 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n",232 __func__, wdev->netdev->name, wdev->netdev, ar);233 234 ar->fw_recovery.enable = !!recovery_enable;235 if (!ar->fw_recovery.enable)236 return ret;237 238 if (heart_beat_poll &&239 test_bit(ATH6KL_FW_CAPABILITY_HEART_BEAT_POLL,240 ar->fw_capabilities))241 ar->fw_recovery.hb_poll = heart_beat_poll;242 243 ath6kl_recovery_init(ar);244 245 return ret;246 247err_rxbuf_cleanup:248 ath6kl_debug_cleanup(ar);249 ath6kl_htc_flush_rx_buf(ar->htc_target);250 ath6kl_cleanup_amsdu_rxbufs(ar);251 ath6kl_wmi_shutdown(ar->wmi);252 clear_bit(WMI_ENABLED, &ar->flag);253 ar->wmi = NULL;254err_htc_cleanup:255 ath6kl_htc_cleanup(ar->htc_target);256err_power_off:257 ath6kl_hif_power_off(ar);258err_bmi_cleanup:259 ath6kl_bmi_cleanup(ar);260err_wq:261 destroy_workqueue(ar->ath6kl_wq);262 263 return ret;264}265EXPORT_SYMBOL(ath6kl_core_init);266 267struct ath6kl *ath6kl_core_create(struct device *dev)268{269 struct ath6kl *ar;270 u8 ctr;271 272 ar = ath6kl_cfg80211_create();273 if (!ar)274 return NULL;275 276 ar->p2p = !!ath6kl_p2p;277 ar->dev = dev;278 279 ar->vif_max = 1;280 281 ar->max_norm_iface = 1;282 283 spin_lock_init(&ar->lock);284 spin_lock_init(&ar->mcastpsq_lock);285 spin_lock_init(&ar->list_lock);286 287 init_waitqueue_head(&ar->event_wq);288 sema_init(&ar->sem, 1);289 290 INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue);291 INIT_LIST_HEAD(&ar->vif_list);292 293 clear_bit(WMI_ENABLED, &ar->flag);294 clear_bit(SKIP_SCAN, &ar->flag);295 clear_bit(DESTROY_IN_PROGRESS, &ar->flag);296 297 ar->tx_pwr = 0;298 ar->intra_bss = 1;299 ar->lrssi_roam_threshold = DEF_LRSSI_ROAM_THRESHOLD;300 301 ar->state = ATH6KL_STATE_OFF;302 303 memset((u8 *)ar->sta_list, 0,304 AP_MAX_NUM_STA * sizeof(struct ath6kl_sta));305 306 /* Init the PS queues */307 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) {308 spin_lock_init(&ar->sta_list[ctr].psq_lock);309 skb_queue_head_init(&ar->sta_list[ctr].psq);310 skb_queue_head_init(&ar->sta_list[ctr].apsdq);311 ar->sta_list[ctr].mgmt_psq_len = 0;312 INIT_LIST_HEAD(&ar->sta_list[ctr].mgmt_psq);313 ar->sta_list[ctr].aggr_conn =314 kzalloc(sizeof(struct aggr_info_conn), GFP_KERNEL);315 if (!ar->sta_list[ctr].aggr_conn) {316 ath6kl_err("Failed to allocate memory for sta aggregation information\n");317 ath6kl_core_destroy(ar);318 return NULL;319 }320 }321 322 skb_queue_head_init(&ar->mcastpsq);323 324 memcpy(ar->ap_country_code, DEF_AP_COUNTRY_CODE, 3);325 326 return ar;327}328EXPORT_SYMBOL(ath6kl_core_create);329 330void ath6kl_core_cleanup(struct ath6kl *ar)331{332 ath6kl_hif_power_off(ar);333 334 ath6kl_recovery_cleanup(ar);335 336 destroy_workqueue(ar->ath6kl_wq);337 338 if (ar->htc_target)339 ath6kl_htc_cleanup(ar->htc_target);340 341 ath6kl_cookie_cleanup(ar);342 343 ath6kl_cleanup_amsdu_rxbufs(ar);344 345 ath6kl_bmi_cleanup(ar);346 347 ath6kl_debug_cleanup(ar);348 349 kfree(ar->fw_board);350 kfree(ar->fw_otp);351 vfree(ar->fw);352 kfree(ar->fw_patch);353 kfree(ar->fw_testscript);354 355 ath6kl_cfg80211_cleanup(ar);356}357EXPORT_SYMBOL(ath6kl_core_cleanup);358 359void ath6kl_core_destroy(struct ath6kl *ar)360{361 ath6kl_cfg80211_destroy(ar);362}363EXPORT_SYMBOL(ath6kl_core_destroy);364 365MODULE_AUTHOR("Qualcomm Atheros");366MODULE_DESCRIPTION("Core module for AR600x SDIO and USB devices.");367MODULE_LICENSE("Dual BSD/GPL");368