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 ath6kl_p2p; 35 static unsigned int testmode; 36 static unsigned int recovery_enable; 37 static unsigned int heart_beat_poll; 38 39 module_param(debug_mask, uint, 0644); 40 module_param(suspend_mode, uint, 0644); 41 module_param(wow_mode, uint, 0644); 42 module_param(uart_debug, uint, 0644); 43 module_param(ath6kl_p2p, uint, 0644); 44 module_param(testmode, uint, 0644); 45 module_param(recovery_enable, uint, 0644); 46 module_param(heart_beat_poll, uint, 0644); 47 MODULE_PARM_DESC(recovery_enable, "Enable recovery from firmware error"); 48 MODULE_PARM_DESC(heart_beat_poll, 49 "Enable fw error detection periodic polling in msecs - Also set recovery_enable for this to be effective"); 50 51 52 void ath6kl_core_tx_complete(struct ath6kl *ar, struct sk_buff *skb) 53 { 54 ath6kl_htc_tx_complete(ar, skb); 55 } 56 EXPORT_SYMBOL(ath6kl_core_tx_complete); 57 58 void ath6kl_core_rx_complete(struct ath6kl *ar, struct sk_buff *skb, u8 pipe) 59 { 60 ath6kl_htc_rx_complete(ar, skb, pipe); 61 } 62 EXPORT_SYMBOL(ath6kl_core_rx_complete); 63 64 int ath6kl_core_init(struct ath6kl *ar, enum ath6kl_htc_type htc_type) 65 { 66 struct ath6kl_bmi_target_info targ_info; 67 struct wireless_dev *wdev; 68 int ret = 0, i; 69 70 switch (htc_type) { 71 case ATH6KL_HTC_TYPE_MBOX: 72 ath6kl_htc_mbox_attach(ar); 73 break; 74 case ATH6KL_HTC_TYPE_PIPE: 75 ath6kl_htc_pipe_attach(ar); 76 break; 77 default: 78 WARN_ON(1); 79 return -ENOMEM; 80 } 81 82 ar->ath6kl_wq = create_singlethread_workqueue("ath6kl"); 83 if (!ar->ath6kl_wq) 84 return -ENOMEM; 85 86 ret = ath6kl_bmi_init(ar); 87 if (ret) 88 goto err_wq; 89 90 /* 91 * Turn on power to get hardware (target) version and leave power 92 * on delibrately as we will boot the hardware anyway within few 93 * seconds. 94 */ 95 ret = ath6kl_hif_power_on(ar); 96 if (ret) 97 goto err_bmi_cleanup; 98 99 ret = ath6kl_bmi_get_target_info(ar, &targ_info); 100 if (ret) 101 goto err_power_off; 102 103 ar->version.target_ver = le32_to_cpu(targ_info.version); 104 ar->target_type = le32_to_cpu(targ_info.type); 105 ar->wiphy->hw_version = le32_to_cpu(targ_info.version); 106 107 ret = ath6kl_init_hw_params(ar); 108 if (ret) 109 goto err_power_off; 110 111 ar->htc_target = ath6kl_htc_create(ar); 112 113 if (!ar->htc_target) { 114 ret = -ENOMEM; 115 goto err_power_off; 116 } 117 118 ar->testmode = testmode; 119 120 ret = ath6kl_init_fetch_firmwares(ar); 121 if (ret) 122 goto err_htc_cleanup; 123 124 /* FIXME: we should free all firmwares in the error cases below */ 125 126 /* 127 * Backwards compatibility support for older ar6004 firmware images 128 * which do not set these feature flags. 129 */ 130 if (ar->target_type == TARGET_TYPE_AR6004 && 131 ar->fw_api <= 4) { 132 __set_bit(ATH6KL_FW_CAPABILITY_64BIT_RATES, 133 ar->fw_capabilities); 134 __set_bit(ATH6KL_FW_CAPABILITY_AP_INACTIVITY_MINS, 135 ar->fw_capabilities); 136 137 if (ar->hw.id == AR6004_HW_1_3_VERSION) 138 __set_bit(ATH6KL_FW_CAPABILITY_MAP_LP_ENDPOINT, 139 ar->fw_capabilities); 140 } 141 142 /* Indicate that WMI is enabled (although not ready yet) */ 143 set_bit(WMI_ENABLED, &ar->flag); 144 ar->wmi = ath6kl_wmi_init(ar); 145 if (!ar->wmi) { 146 ath6kl_err("failed to initialize wmi\n"); 147 ret = -EIO; 148 goto err_htc_cleanup; 149 } 150 151 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi); 152 153 /* setup access class priority mappings */ 154 ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest */ 155 ar->ac_stream_pri_map[WMM_AC_BE] = 1; 156 ar->ac_stream_pri_map[WMM_AC_VI] = 2; 157 ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */ 158 159 /* allocate some buffers that handle larger AMSDU frames */ 160 ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS); 161 162 ath6kl_cookie_init(ar); 163 164 ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER | 165 ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST; 166 167 if (suspend_mode && 168 suspend_mode >= WLAN_POWER_STATE_CUT_PWR && 169 suspend_mode <= WLAN_POWER_STATE_WOW) 170 ar->suspend_mode = suspend_mode; 171 else 172 ar->suspend_mode = 0; 173 174 if (suspend_mode == WLAN_POWER_STATE_WOW && 175 (wow_mode == WLAN_POWER_STATE_CUT_PWR || 176 wow_mode == WLAN_POWER_STATE_DEEP_SLEEP)) 177 ar->wow_suspend_mode = wow_mode; 178 else 179 ar->wow_suspend_mode = 0; 180 181 if (uart_debug) 182 ar->conf_flags |= ATH6KL_CONF_UART_DEBUG; 183 184 set_bit(FIRST_BOOT, &ar->flag); 185 186 ath6kl_debug_init(ar); 187 188 ret = ath6kl_init_hw_start(ar); 189 if (ret) { 190 ath6kl_err("Failed to start hardware: %d\n", ret); 191 goto err_rxbuf_cleanup; 192 } 193 194 /* give our connected endpoints some buffers */ 195 ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep); 196 ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]); 197 198 ret = ath6kl_cfg80211_init(ar); 199 if (ret) 200 goto err_rxbuf_cleanup; 201 202 ret = ath6kl_debug_init_fs(ar); 203 if (ret) { 204 wiphy_unregister(ar->wiphy); 205 goto err_rxbuf_cleanup; 206 } 207 208 for (i = 0; i < ar->vif_max; i++) 209 ar->avail_idx_map |= BIT(i); 210 211 rtnl_lock(); 212 213 /* Add an initial station interface */ 214 wdev = ath6kl_interface_add(ar, "wlan%d", NL80211_IFTYPE_STATION, 0, 215 INFRA_NETWORK); 216 217 rtnl_unlock(); 218 219 if (!wdev) { 220 ath6kl_err("Failed to instantiate a network device\n"); 221 ret = -ENOMEM; 222 wiphy_unregister(ar->wiphy); 223 goto err_rxbuf_cleanup; 224 } 225 226 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n", 227 __func__, wdev->netdev->name, wdev->netdev, ar); 228 229 ar->fw_recovery.enable = !!recovery_enable; 230 if (!ar->fw_recovery.enable) 231 return ret; 232 233 if (heart_beat_poll && 234 test_bit(ATH6KL_FW_CAPABILITY_HEART_BEAT_POLL, 235 ar->fw_capabilities)) 236 ar->fw_recovery.hb_poll = heart_beat_poll; 237 238 ath6kl_recovery_init(ar); 239 240 return ret; 241 242 err_rxbuf_cleanup: 243 ath6kl_debug_cleanup(ar); 244 ath6kl_htc_flush_rx_buf(ar->htc_target); 245 ath6kl_cleanup_amsdu_rxbufs(ar); 246 ath6kl_wmi_shutdown(ar->wmi); 247 clear_bit(WMI_ENABLED, &ar->flag); 248 ar->wmi = NULL; 249 err_htc_cleanup: 250 ath6kl_htc_cleanup(ar->htc_target); 251 err_power_off: 252 ath6kl_hif_power_off(ar); 253 err_bmi_cleanup: 254 ath6kl_bmi_cleanup(ar); 255 err_wq: 256 destroy_workqueue(ar->ath6kl_wq); 257 258 return ret; 259 } 260 EXPORT_SYMBOL(ath6kl_core_init); 261 262 struct ath6kl *ath6kl_core_create(struct device *dev) 263 { 264 struct ath6kl *ar; 265 u8 ctr; 266 267 ar = ath6kl_cfg80211_create(); 268 if (!ar) 269 return NULL; 270 271 ar->p2p = !!ath6kl_p2p; 272 ar->dev = dev; 273 274 ar->vif_max = 1; 275 276 ar->max_norm_iface = 1; 277 278 spin_lock_init(&ar->lock); 279 spin_lock_init(&ar->mcastpsq_lock); 280 spin_lock_init(&ar->list_lock); 281 282 init_waitqueue_head(&ar->event_wq); 283 sema_init(&ar->sem, 1); 284 285 INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue); 286 INIT_LIST_HEAD(&ar->vif_list); 287 288 clear_bit(WMI_ENABLED, &ar->flag); 289 clear_bit(SKIP_SCAN, &ar->flag); 290 clear_bit(DESTROY_IN_PROGRESS, &ar->flag); 291 292 ar->tx_pwr = 0; 293 ar->intra_bss = 1; 294 ar->lrssi_roam_threshold = DEF_LRSSI_ROAM_THRESHOLD; 295 296 ar->state = ATH6KL_STATE_OFF; 297 298 memset((u8 *)ar->sta_list, 0, 299 AP_MAX_NUM_STA * sizeof(struct ath6kl_sta)); 300 301 /* Init the PS queues */ 302 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { 303 spin_lock_init(&ar->sta_list[ctr].psq_lock); 304 skb_queue_head_init(&ar->sta_list[ctr].psq); 305 skb_queue_head_init(&ar->sta_list[ctr].apsdq); 306 ar->sta_list[ctr].mgmt_psq_len = 0; 307 INIT_LIST_HEAD(&ar->sta_list[ctr].mgmt_psq); 308 ar->sta_list[ctr].aggr_conn = 309 kzalloc(sizeof(struct aggr_info_conn), GFP_KERNEL); 310 if (!ar->sta_list[ctr].aggr_conn) { 311 ath6kl_err("Failed to allocate memory for sta aggregation information\n"); 312 ath6kl_core_destroy(ar); 313 return NULL; 314 } 315 } 316 317 skb_queue_head_init(&ar->mcastpsq); 318 319 memcpy(ar->ap_country_code, DEF_AP_COUNTRY_CODE, 3); 320 321 return ar; 322 } 323 EXPORT_SYMBOL(ath6kl_core_create); 324 325 void ath6kl_core_cleanup(struct ath6kl *ar) 326 { 327 ath6kl_hif_power_off(ar); 328 329 ath6kl_recovery_cleanup(ar); 330 331 destroy_workqueue(ar->ath6kl_wq); 332 333 if (ar->htc_target) 334 ath6kl_htc_cleanup(ar->htc_target); 335 336 ath6kl_cookie_cleanup(ar); 337 338 ath6kl_cleanup_amsdu_rxbufs(ar); 339 340 ath6kl_bmi_cleanup(ar); 341 342 ath6kl_debug_cleanup(ar); 343 344 kfree(ar->fw_board); 345 kfree(ar->fw_otp); 346 vfree(ar->fw); 347 kfree(ar->fw_patch); 348 kfree(ar->fw_testscript); 349 350 ath6kl_cfg80211_cleanup(ar); 351 } 352 EXPORT_SYMBOL(ath6kl_core_cleanup); 353 354 void ath6kl_core_destroy(struct ath6kl *ar) 355 { 356 ath6kl_cfg80211_destroy(ar); 357 } 358 EXPORT_SYMBOL(ath6kl_core_destroy); 359 360 MODULE_AUTHOR("Qualcomm Atheros"); 361 MODULE_DESCRIPTION("Core module for AR600x SDIO and USB devices."); 362 MODULE_LICENSE("Dual BSD/GPL"); 363