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 any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * 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 30 unsigned int debug_mask; 31 static unsigned int suspend_mode; 32 static unsigned int wow_mode; 33 static unsigned int uart_debug; 34 static unsigned int uart_rate = 115200; 35 static unsigned int ath6kl_p2p; 36 static unsigned int testmode; 37 static unsigned int recovery_enable; 38 static unsigned int heart_beat_poll; 39 40 module_param(debug_mask, uint, 0644); 41 module_param(suspend_mode, uint, 0644); 42 module_param(wow_mode, uint, 0644); 43 module_param(uart_debug, uint, 0644); 44 module_param(uart_rate, uint, 0644); 45 module_param(ath6kl_p2p, uint, 0644); 46 module_param(testmode, uint, 0644); 47 module_param(recovery_enable, uint, 0644); 48 module_param(heart_beat_poll, uint, 0644); 49 MODULE_PARM_DESC(recovery_enable, "Enable recovery from firmware error"); 50 MODULE_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 54 void ath6kl_core_tx_complete(struct ath6kl *ar, struct sk_buff *skb) 55 { 56 ath6kl_htc_tx_complete(ar, skb); 57 } 58 EXPORT_SYMBOL(ath6kl_core_tx_complete); 59 60 void ath6kl_core_rx_complete(struct ath6kl *ar, struct sk_buff *skb, u8 pipe) 61 { 62 ath6kl_htc_rx_complete(ar, skb, pipe); 63 } 64 EXPORT_SYMBOL(ath6kl_core_rx_complete); 65 66 int 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 power 94 * on delibrately as we will boot the hardware anyway within few 95 * 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 images 130 * 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 else 174 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 else 181 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; 246 247 err_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; 254 err_htc_cleanup: 255 ath6kl_htc_cleanup(ar->htc_target); 256 err_power_off: 257 ath6kl_hif_power_off(ar); 258 err_bmi_cleanup: 259 ath6kl_bmi_cleanup(ar); 260 err_wq: 261 destroy_workqueue(ar->ath6kl_wq); 262 263 return ret; 264 } 265 EXPORT_SYMBOL(ath6kl_core_init); 266 267 struct 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 } 328 EXPORT_SYMBOL(ath6kl_core_create); 329 330 void 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 } 357 EXPORT_SYMBOL(ath6kl_core_cleanup); 358 359 void ath6kl_core_destroy(struct ath6kl *ar) 360 { 361 ath6kl_cfg80211_destroy(ar); 362 } 363 EXPORT_SYMBOL(ath6kl_core_destroy); 364 365 MODULE_AUTHOR("Qualcomm Atheros"); 366 MODULE_DESCRIPTION("Core module for AR600x SDIO and USB devices."); 367 MODULE_LICENSE("Dual BSD/GPL"); 368