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 24 #include "debug.h" 25 #include "hif-ops.h" 26 #include "cfg80211.h" 27 28 unsigned int debug_mask; 29 static unsigned int suspend_mode; 30 static unsigned int wow_mode; 31 static unsigned int uart_debug; 32 static unsigned int ath6kl_p2p; 33 static unsigned int testmode; 34 35 module_param(debug_mask, uint, 0644); 36 module_param(suspend_mode, uint, 0644); 37 module_param(wow_mode, uint, 0644); 38 module_param(uart_debug, uint, 0644); 39 module_param(ath6kl_p2p, uint, 0644); 40 module_param(testmode, uint, 0644); 41 42 int ath6kl_core_init(struct ath6kl *ar) 43 { 44 struct ath6kl_bmi_target_info targ_info; 45 struct net_device *ndev; 46 int ret = 0, i; 47 48 ar->ath6kl_wq = create_singlethread_workqueue("ath6kl"); 49 if (!ar->ath6kl_wq) 50 return -ENOMEM; 51 52 ret = ath6kl_bmi_init(ar); 53 if (ret) 54 goto err_wq; 55 56 /* 57 * Turn on power to get hardware (target) version and leave power 58 * on delibrately as we will boot the hardware anyway within few 59 * seconds. 60 */ 61 ret = ath6kl_hif_power_on(ar); 62 if (ret) 63 goto err_bmi_cleanup; 64 65 ret = ath6kl_bmi_get_target_info(ar, &targ_info); 66 if (ret) 67 goto err_power_off; 68 69 ar->version.target_ver = le32_to_cpu(targ_info.version); 70 ar->target_type = le32_to_cpu(targ_info.type); 71 ar->wiphy->hw_version = le32_to_cpu(targ_info.version); 72 73 ret = ath6kl_init_hw_params(ar); 74 if (ret) 75 goto err_power_off; 76 77 ar->htc_target = ath6kl_htc_create(ar); 78 79 if (!ar->htc_target) { 80 ret = -ENOMEM; 81 goto err_power_off; 82 } 83 84 ar->testmode = testmode; 85 86 ret = ath6kl_init_fetch_firmwares(ar); 87 if (ret) 88 goto err_htc_cleanup; 89 90 /* FIXME: we should free all firmwares in the error cases below */ 91 92 /* Indicate that WMI is enabled (although not ready yet) */ 93 set_bit(WMI_ENABLED, &ar->flag); 94 ar->wmi = ath6kl_wmi_init(ar); 95 if (!ar->wmi) { 96 ath6kl_err("failed to initialize wmi\n"); 97 ret = -EIO; 98 goto err_htc_cleanup; 99 } 100 101 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi); 102 103 /* setup access class priority mappings */ 104 ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest */ 105 ar->ac_stream_pri_map[WMM_AC_BE] = 1; 106 ar->ac_stream_pri_map[WMM_AC_VI] = 2; 107 ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */ 108 109 /* allocate some buffers that handle larger AMSDU frames */ 110 ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS); 111 112 ath6kl_cookie_init(ar); 113 114 ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER | 115 ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST; 116 117 if (suspend_mode && 118 suspend_mode >= WLAN_POWER_STATE_CUT_PWR && 119 suspend_mode <= WLAN_POWER_STATE_WOW) 120 ar->suspend_mode = suspend_mode; 121 else 122 ar->suspend_mode = 0; 123 124 if (suspend_mode == WLAN_POWER_STATE_WOW && 125 (wow_mode == WLAN_POWER_STATE_CUT_PWR || 126 wow_mode == WLAN_POWER_STATE_DEEP_SLEEP)) 127 ar->wow_suspend_mode = wow_mode; 128 else 129 ar->wow_suspend_mode = 0; 130 131 if (uart_debug) 132 ar->conf_flags |= ATH6KL_CONF_UART_DEBUG; 133 134 set_bit(FIRST_BOOT, &ar->flag); 135 136 ath6kl_debug_init(ar); 137 138 ret = ath6kl_init_hw_start(ar); 139 if (ret) { 140 ath6kl_err("Failed to start hardware: %d\n", ret); 141 goto err_rxbuf_cleanup; 142 } 143 144 /* give our connected endpoints some buffers */ 145 ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep); 146 ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]); 147 148 ret = ath6kl_cfg80211_init(ar); 149 if (ret) 150 goto err_rxbuf_cleanup; 151 152 ret = ath6kl_debug_init_fs(ar); 153 if (ret) { 154 wiphy_unregister(ar->wiphy); 155 goto err_rxbuf_cleanup; 156 } 157 158 for (i = 0; i < ar->vif_max; i++) 159 ar->avail_idx_map |= BIT(i); 160 161 rtnl_lock(); 162 163 /* Add an initial station interface */ 164 ndev = ath6kl_interface_add(ar, "wlan%d", NL80211_IFTYPE_STATION, 0, 165 INFRA_NETWORK); 166 167 rtnl_unlock(); 168 169 if (!ndev) { 170 ath6kl_err("Failed to instantiate a network device\n"); 171 ret = -ENOMEM; 172 wiphy_unregister(ar->wiphy); 173 goto err_rxbuf_cleanup; 174 } 175 176 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n", 177 __func__, ndev->name, ndev, ar); 178 179 return ret; 180 181 err_rxbuf_cleanup: 182 ath6kl_debug_cleanup(ar); 183 ath6kl_htc_flush_rx_buf(ar->htc_target); 184 ath6kl_cleanup_amsdu_rxbufs(ar); 185 ath6kl_wmi_shutdown(ar->wmi); 186 clear_bit(WMI_ENABLED, &ar->flag); 187 ar->wmi = NULL; 188 err_htc_cleanup: 189 ath6kl_htc_cleanup(ar->htc_target); 190 err_power_off: 191 ath6kl_hif_power_off(ar); 192 err_bmi_cleanup: 193 ath6kl_bmi_cleanup(ar); 194 err_wq: 195 destroy_workqueue(ar->ath6kl_wq); 196 197 return ret; 198 } 199 EXPORT_SYMBOL(ath6kl_core_init); 200 201 struct ath6kl *ath6kl_core_create(struct device *dev) 202 { 203 struct ath6kl *ar; 204 u8 ctr; 205 206 ar = ath6kl_cfg80211_create(); 207 if (!ar) 208 return NULL; 209 210 ar->p2p = !!ath6kl_p2p; 211 ar->dev = dev; 212 213 ar->vif_max = 1; 214 215 ar->max_norm_iface = 1; 216 217 spin_lock_init(&ar->lock); 218 spin_lock_init(&ar->mcastpsq_lock); 219 spin_lock_init(&ar->list_lock); 220 221 init_waitqueue_head(&ar->event_wq); 222 sema_init(&ar->sem, 1); 223 224 INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue); 225 INIT_LIST_HEAD(&ar->vif_list); 226 227 clear_bit(WMI_ENABLED, &ar->flag); 228 clear_bit(SKIP_SCAN, &ar->flag); 229 clear_bit(DESTROY_IN_PROGRESS, &ar->flag); 230 231 ar->tx_pwr = 0; 232 ar->intra_bss = 1; 233 ar->lrssi_roam_threshold = DEF_LRSSI_ROAM_THRESHOLD; 234 235 ar->state = ATH6KL_STATE_OFF; 236 237 memset((u8 *)ar->sta_list, 0, 238 AP_MAX_NUM_STA * sizeof(struct ath6kl_sta)); 239 240 /* Init the PS queues */ 241 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { 242 spin_lock_init(&ar->sta_list[ctr].psq_lock); 243 skb_queue_head_init(&ar->sta_list[ctr].psq); 244 skb_queue_head_init(&ar->sta_list[ctr].apsdq); 245 ar->sta_list[ctr].mgmt_psq_len = 0; 246 INIT_LIST_HEAD(&ar->sta_list[ctr].mgmt_psq); 247 ar->sta_list[ctr].aggr_conn = 248 kzalloc(sizeof(struct aggr_info_conn), GFP_KERNEL); 249 if (!ar->sta_list[ctr].aggr_conn) { 250 ath6kl_err("Failed to allocate memory for sta aggregation information\n"); 251 ath6kl_core_destroy(ar); 252 return NULL; 253 } 254 } 255 256 skb_queue_head_init(&ar->mcastpsq); 257 258 memcpy(ar->ap_country_code, DEF_AP_COUNTRY_CODE, 3); 259 260 return ar; 261 } 262 EXPORT_SYMBOL(ath6kl_core_create); 263 264 void ath6kl_core_cleanup(struct ath6kl *ar) 265 { 266 ath6kl_hif_power_off(ar); 267 268 destroy_workqueue(ar->ath6kl_wq); 269 270 if (ar->htc_target) 271 ath6kl_htc_cleanup(ar->htc_target); 272 273 ath6kl_cookie_cleanup(ar); 274 275 ath6kl_cleanup_amsdu_rxbufs(ar); 276 277 ath6kl_bmi_cleanup(ar); 278 279 ath6kl_debug_cleanup(ar); 280 281 kfree(ar->fw_board); 282 kfree(ar->fw_otp); 283 kfree(ar->fw); 284 kfree(ar->fw_patch); 285 kfree(ar->fw_testscript); 286 287 ath6kl_cfg80211_cleanup(ar); 288 } 289 EXPORT_SYMBOL(ath6kl_core_cleanup); 290 291 void ath6kl_core_destroy(struct ath6kl *ar) 292 { 293 ath6kl_cfg80211_destroy(ar); 294 } 295 EXPORT_SYMBOL(ath6kl_core_destroy); 296 297 MODULE_AUTHOR("Qualcomm Atheros"); 298 MODULE_DESCRIPTION("Core module for AR600x SDIO and USB devices."); 299 MODULE_LICENSE("Dual BSD/GPL"); 300