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, "Enable fw error detection periodic" \ 49 "polling. This also specifies the polling interval in" \ 50 "msecs. Set reocvery_enable for this to be effective"); 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 /* Indicate that WMI is enabled (although not ready yet) */ 127 set_bit(WMI_ENABLED, &ar->flag); 128 ar->wmi = ath6kl_wmi_init(ar); 129 if (!ar->wmi) { 130 ath6kl_err("failed to initialize wmi\n"); 131 ret = -EIO; 132 goto err_htc_cleanup; 133 } 134 135 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi); 136 137 /* setup access class priority mappings */ 138 ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest */ 139 ar->ac_stream_pri_map[WMM_AC_BE] = 1; 140 ar->ac_stream_pri_map[WMM_AC_VI] = 2; 141 ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */ 142 143 /* allocate some buffers that handle larger AMSDU frames */ 144 ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS); 145 146 ath6kl_cookie_init(ar); 147 148 ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER | 149 ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST; 150 151 if (suspend_mode && 152 suspend_mode >= WLAN_POWER_STATE_CUT_PWR && 153 suspend_mode <= WLAN_POWER_STATE_WOW) 154 ar->suspend_mode = suspend_mode; 155 else 156 ar->suspend_mode = 0; 157 158 if (suspend_mode == WLAN_POWER_STATE_WOW && 159 (wow_mode == WLAN_POWER_STATE_CUT_PWR || 160 wow_mode == WLAN_POWER_STATE_DEEP_SLEEP)) 161 ar->wow_suspend_mode = wow_mode; 162 else 163 ar->wow_suspend_mode = 0; 164 165 if (uart_debug) 166 ar->conf_flags |= ATH6KL_CONF_UART_DEBUG; 167 168 set_bit(FIRST_BOOT, &ar->flag); 169 170 ath6kl_debug_init(ar); 171 172 ret = ath6kl_init_hw_start(ar); 173 if (ret) { 174 ath6kl_err("Failed to start hardware: %d\n", ret); 175 goto err_rxbuf_cleanup; 176 } 177 178 /* give our connected endpoints some buffers */ 179 ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep); 180 ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]); 181 182 ret = ath6kl_cfg80211_init(ar); 183 if (ret) 184 goto err_rxbuf_cleanup; 185 186 ret = ath6kl_debug_init_fs(ar); 187 if (ret) { 188 wiphy_unregister(ar->wiphy); 189 goto err_rxbuf_cleanup; 190 } 191 192 for (i = 0; i < ar->vif_max; i++) 193 ar->avail_idx_map |= BIT(i); 194 195 rtnl_lock(); 196 197 /* Add an initial station interface */ 198 wdev = ath6kl_interface_add(ar, "wlan%d", NL80211_IFTYPE_STATION, 0, 199 INFRA_NETWORK); 200 201 rtnl_unlock(); 202 203 if (!wdev) { 204 ath6kl_err("Failed to instantiate a network device\n"); 205 ret = -ENOMEM; 206 wiphy_unregister(ar->wiphy); 207 goto err_rxbuf_cleanup; 208 } 209 210 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n", 211 __func__, wdev->netdev->name, wdev->netdev, ar); 212 213 ar->fw_recovery.enable = !!recovery_enable; 214 if (!ar->fw_recovery.enable) 215 return ret; 216 217 if (heart_beat_poll && 218 test_bit(ATH6KL_FW_CAPABILITY_HEART_BEAT_POLL, 219 ar->fw_capabilities)) 220 ar->fw_recovery.hb_poll = heart_beat_poll; 221 222 ath6kl_recovery_init(ar); 223 224 return ret; 225 226 err_rxbuf_cleanup: 227 ath6kl_debug_cleanup(ar); 228 ath6kl_htc_flush_rx_buf(ar->htc_target); 229 ath6kl_cleanup_amsdu_rxbufs(ar); 230 ath6kl_wmi_shutdown(ar->wmi); 231 clear_bit(WMI_ENABLED, &ar->flag); 232 ar->wmi = NULL; 233 err_htc_cleanup: 234 ath6kl_htc_cleanup(ar->htc_target); 235 err_power_off: 236 ath6kl_hif_power_off(ar); 237 err_bmi_cleanup: 238 ath6kl_bmi_cleanup(ar); 239 err_wq: 240 destroy_workqueue(ar->ath6kl_wq); 241 242 return ret; 243 } 244 EXPORT_SYMBOL(ath6kl_core_init); 245 246 struct ath6kl *ath6kl_core_create(struct device *dev) 247 { 248 struct ath6kl *ar; 249 u8 ctr; 250 251 ar = ath6kl_cfg80211_create(); 252 if (!ar) 253 return NULL; 254 255 ar->p2p = !!ath6kl_p2p; 256 ar->dev = dev; 257 258 ar->vif_max = 1; 259 260 ar->max_norm_iface = 1; 261 262 spin_lock_init(&ar->lock); 263 spin_lock_init(&ar->mcastpsq_lock); 264 spin_lock_init(&ar->list_lock); 265 266 init_waitqueue_head(&ar->event_wq); 267 sema_init(&ar->sem, 1); 268 269 INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue); 270 INIT_LIST_HEAD(&ar->vif_list); 271 272 clear_bit(WMI_ENABLED, &ar->flag); 273 clear_bit(SKIP_SCAN, &ar->flag); 274 clear_bit(DESTROY_IN_PROGRESS, &ar->flag); 275 276 ar->tx_pwr = 0; 277 ar->intra_bss = 1; 278 ar->lrssi_roam_threshold = DEF_LRSSI_ROAM_THRESHOLD; 279 280 ar->state = ATH6KL_STATE_OFF; 281 282 memset((u8 *)ar->sta_list, 0, 283 AP_MAX_NUM_STA * sizeof(struct ath6kl_sta)); 284 285 /* Init the PS queues */ 286 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { 287 spin_lock_init(&ar->sta_list[ctr].psq_lock); 288 skb_queue_head_init(&ar->sta_list[ctr].psq); 289 skb_queue_head_init(&ar->sta_list[ctr].apsdq); 290 ar->sta_list[ctr].mgmt_psq_len = 0; 291 INIT_LIST_HEAD(&ar->sta_list[ctr].mgmt_psq); 292 ar->sta_list[ctr].aggr_conn = 293 kzalloc(sizeof(struct aggr_info_conn), GFP_KERNEL); 294 if (!ar->sta_list[ctr].aggr_conn) { 295 ath6kl_err("Failed to allocate memory for sta aggregation information\n"); 296 ath6kl_core_destroy(ar); 297 return NULL; 298 } 299 } 300 301 skb_queue_head_init(&ar->mcastpsq); 302 303 memcpy(ar->ap_country_code, DEF_AP_COUNTRY_CODE, 3); 304 305 return ar; 306 } 307 EXPORT_SYMBOL(ath6kl_core_create); 308 309 void ath6kl_core_cleanup(struct ath6kl *ar) 310 { 311 ath6kl_hif_power_off(ar); 312 313 ath6kl_recovery_cleanup(ar); 314 315 destroy_workqueue(ar->ath6kl_wq); 316 317 if (ar->htc_target) 318 ath6kl_htc_cleanup(ar->htc_target); 319 320 ath6kl_cookie_cleanup(ar); 321 322 ath6kl_cleanup_amsdu_rxbufs(ar); 323 324 ath6kl_bmi_cleanup(ar); 325 326 ath6kl_debug_cleanup(ar); 327 328 kfree(ar->fw_board); 329 kfree(ar->fw_otp); 330 vfree(ar->fw); 331 kfree(ar->fw_patch); 332 kfree(ar->fw_testscript); 333 334 ath6kl_cfg80211_cleanup(ar); 335 } 336 EXPORT_SYMBOL(ath6kl_core_cleanup); 337 338 void ath6kl_core_destroy(struct ath6kl *ar) 339 { 340 ath6kl_cfg80211_destroy(ar); 341 } 342 EXPORT_SYMBOL(ath6kl_core_destroy); 343 344 MODULE_AUTHOR("Qualcomm Atheros"); 345 MODULE_DESCRIPTION("Core module for AR600x SDIO and USB devices."); 346 MODULE_LICENSE("Dual BSD/GPL"); 347