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