1 /* 2 * Copyright (c) 2004-2011 Atheros Communications Inc. 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #include "core.h" 18 19 #include <linux/module.h> 20 #include <linux/moduleparam.h> 21 #include <linux/export.h> 22 23 #include "debug.h" 24 #include "hif-ops.h" 25 #include "cfg80211.h" 26 27 unsigned int debug_mask; 28 static unsigned int suspend_mode; 29 static unsigned int uart_debug; 30 static unsigned int ath6kl_p2p; 31 static unsigned int testmode; 32 33 module_param(debug_mask, uint, 0644); 34 module_param(suspend_mode, uint, 0644); 35 module_param(uart_debug, uint, 0644); 36 module_param(ath6kl_p2p, uint, 0644); 37 module_param(testmode, uint, 0644); 38 39 int ath6kl_core_init(struct ath6kl *ar) 40 { 41 struct ath6kl_bmi_target_info targ_info; 42 struct net_device *ndev; 43 int ret = 0, i; 44 45 ar->ath6kl_wq = create_singlethread_workqueue("ath6kl"); 46 if (!ar->ath6kl_wq) 47 return -ENOMEM; 48 49 ret = ath6kl_bmi_init(ar); 50 if (ret) 51 goto err_wq; 52 53 /* 54 * Turn on power to get hardware (target) version and leave power 55 * on delibrately as we will boot the hardware anyway within few 56 * seconds. 57 */ 58 ret = ath6kl_hif_power_on(ar); 59 if (ret) 60 goto err_bmi_cleanup; 61 62 ret = ath6kl_bmi_get_target_info(ar, &targ_info); 63 if (ret) 64 goto err_power_off; 65 66 ar->version.target_ver = le32_to_cpu(targ_info.version); 67 ar->target_type = le32_to_cpu(targ_info.type); 68 ar->wiphy->hw_version = le32_to_cpu(targ_info.version); 69 70 ret = ath6kl_init_hw_params(ar); 71 if (ret) 72 goto err_power_off; 73 74 ar->htc_target = ath6kl_htc_create(ar); 75 76 if (!ar->htc_target) { 77 ret = -ENOMEM; 78 goto err_power_off; 79 } 80 81 ar->testmode = testmode; 82 83 ret = ath6kl_init_fetch_firmwares(ar); 84 if (ret) 85 goto err_htc_cleanup; 86 87 /* FIXME: we should free all firmwares in the error cases below */ 88 89 /* Indicate that WMI is enabled (although not ready yet) */ 90 set_bit(WMI_ENABLED, &ar->flag); 91 ar->wmi = ath6kl_wmi_init(ar); 92 if (!ar->wmi) { 93 ath6kl_err("failed to initialize wmi\n"); 94 ret = -EIO; 95 goto err_htc_cleanup; 96 } 97 98 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi); 99 100 ret = ath6kl_cfg80211_init(ar); 101 if (ret) 102 goto err_node_cleanup; 103 104 ret = ath6kl_debug_init(ar); 105 if (ret) { 106 wiphy_unregister(ar->wiphy); 107 goto err_node_cleanup; 108 } 109 110 for (i = 0; i < ar->vif_max; i++) 111 ar->avail_idx_map |= BIT(i); 112 113 rtnl_lock(); 114 115 /* Add an initial station interface */ 116 ndev = ath6kl_interface_add(ar, "wlan%d", NL80211_IFTYPE_STATION, 0, 117 INFRA_NETWORK); 118 119 rtnl_unlock(); 120 121 if (!ndev) { 122 ath6kl_err("Failed to instantiate a network device\n"); 123 ret = -ENOMEM; 124 wiphy_unregister(ar->wiphy); 125 goto err_debug_init; 126 } 127 128 129 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n", 130 __func__, ndev->name, ndev, ar); 131 132 /* setup access class priority mappings */ 133 ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest */ 134 ar->ac_stream_pri_map[WMM_AC_BE] = 1; 135 ar->ac_stream_pri_map[WMM_AC_VI] = 2; 136 ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */ 137 138 /* give our connected endpoints some buffers */ 139 ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep); 140 ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]); 141 142 /* allocate some buffers that handle larger AMSDU frames */ 143 ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS); 144 145 ath6kl_cookie_init(ar); 146 147 ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER | 148 ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST; 149 150 if (suspend_mode && 151 suspend_mode >= WLAN_POWER_STATE_CUT_PWR && 152 suspend_mode <= WLAN_POWER_STATE_WOW) 153 ar->suspend_mode = suspend_mode; 154 else 155 ar->suspend_mode = 0; 156 157 if (uart_debug) 158 ar->conf_flags |= ATH6KL_CONF_UART_DEBUG; 159 160 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM | 161 WIPHY_FLAG_HAVE_AP_SME | 162 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 163 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; 164 165 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN, ar->fw_capabilities)) 166 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; 167 168 ar->wiphy->probe_resp_offload = 169 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 170 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 171 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P | 172 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U; 173 174 set_bit(FIRST_BOOT, &ar->flag); 175 176 ndev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM; 177 178 ret = ath6kl_init_hw_start(ar); 179 if (ret) { 180 ath6kl_err("Failed to start hardware: %d\n", ret); 181 goto err_rxbuf_cleanup; 182 } 183 184 /* 185 * Set mac address which is received in ready event 186 * FIXME: Move to ath6kl_interface_add() 187 */ 188 memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN); 189 190 return ret; 191 192 err_rxbuf_cleanup: 193 ath6kl_htc_flush_rx_buf(ar->htc_target); 194 ath6kl_cleanup_amsdu_rxbufs(ar); 195 rtnl_lock(); 196 ath6kl_cfg80211_vif_cleanup(netdev_priv(ndev)); 197 rtnl_unlock(); 198 wiphy_unregister(ar->wiphy); 199 err_debug_init: 200 ath6kl_debug_cleanup(ar); 201 err_node_cleanup: 202 ath6kl_wmi_shutdown(ar->wmi); 203 clear_bit(WMI_ENABLED, &ar->flag); 204 ar->wmi = NULL; 205 err_htc_cleanup: 206 ath6kl_htc_cleanup(ar->htc_target); 207 err_power_off: 208 ath6kl_hif_power_off(ar); 209 err_bmi_cleanup: 210 ath6kl_bmi_cleanup(ar); 211 err_wq: 212 destroy_workqueue(ar->ath6kl_wq); 213 214 return ret; 215 } 216 EXPORT_SYMBOL(ath6kl_core_init); 217 218 struct ath6kl *ath6kl_core_create(struct device *dev) 219 { 220 struct ath6kl *ar; 221 u8 ctr; 222 223 ar = ath6kl_cfg80211_create(); 224 if (!ar) 225 return NULL; 226 227 ar->p2p = !!ath6kl_p2p; 228 ar->dev = dev; 229 230 ar->vif_max = 1; 231 232 ar->max_norm_iface = 1; 233 234 spin_lock_init(&ar->lock); 235 spin_lock_init(&ar->mcastpsq_lock); 236 spin_lock_init(&ar->list_lock); 237 238 init_waitqueue_head(&ar->event_wq); 239 sema_init(&ar->sem, 1); 240 241 INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue); 242 INIT_LIST_HEAD(&ar->vif_list); 243 244 clear_bit(WMI_ENABLED, &ar->flag); 245 clear_bit(SKIP_SCAN, &ar->flag); 246 clear_bit(DESTROY_IN_PROGRESS, &ar->flag); 247 248 ar->listen_intvl_b = A_DEFAULT_LISTEN_INTERVAL; 249 ar->tx_pwr = 0; 250 251 ar->intra_bss = 1; 252 ar->lrssi_roam_threshold = DEF_LRSSI_ROAM_THRESHOLD; 253 254 ar->state = ATH6KL_STATE_OFF; 255 256 memset((u8 *)ar->sta_list, 0, 257 AP_MAX_NUM_STA * sizeof(struct ath6kl_sta)); 258 259 /* Init the PS queues */ 260 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { 261 spin_lock_init(&ar->sta_list[ctr].psq_lock); 262 skb_queue_head_init(&ar->sta_list[ctr].psq); 263 skb_queue_head_init(&ar->sta_list[ctr].apsdq); 264 ar->sta_list[ctr].aggr_conn = 265 kzalloc(sizeof(struct aggr_info_conn), GFP_KERNEL); 266 if (!ar->sta_list[ctr].aggr_conn) { 267 ath6kl_err("Failed to allocate memory for sta aggregation information\n"); 268 ath6kl_core_destroy(ar); 269 return NULL; 270 } 271 } 272 273 skb_queue_head_init(&ar->mcastpsq); 274 275 memcpy(ar->ap_country_code, DEF_AP_COUNTRY_CODE, 3); 276 277 return ar; 278 } 279 EXPORT_SYMBOL(ath6kl_core_create); 280 281 void ath6kl_core_cleanup(struct ath6kl *ar) 282 { 283 ath6kl_hif_power_off(ar); 284 285 destroy_workqueue(ar->ath6kl_wq); 286 287 if (ar->htc_target) 288 ath6kl_htc_cleanup(ar->htc_target); 289 290 ath6kl_cookie_cleanup(ar); 291 292 ath6kl_cleanup_amsdu_rxbufs(ar); 293 294 ath6kl_bmi_cleanup(ar); 295 296 ath6kl_debug_cleanup(ar); 297 298 kfree(ar->fw_board); 299 kfree(ar->fw_otp); 300 kfree(ar->fw); 301 kfree(ar->fw_patch); 302 kfree(ar->fw_testscript); 303 304 ath6kl_cfg80211_cleanup(ar); 305 } 306 EXPORT_SYMBOL(ath6kl_core_cleanup); 307 308 void ath6kl_core_destroy(struct ath6kl *ar) 309 { 310 ath6kl_cfg80211_destroy(ar); 311 } 312 EXPORT_SYMBOL(ath6kl_core_destroy); 313 314 MODULE_AUTHOR("Qualcomm Atheros"); 315 MODULE_DESCRIPTION("Core module for AR600x SDIO and USB devices."); 316 MODULE_LICENSE("Dual BSD/GPL"); 317