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 bool suspend_cutpower; 29 static unsigned int uart_debug; 30 static unsigned int ath6kl_p2p; 31 32 module_param(debug_mask, uint, 0644); 33 module_param(suspend_cutpower, bool, 0444); 34 module_param(uart_debug, uint, 0644); 35 module_param(ath6kl_p2p, uint, 0644); 36 37 int ath6kl_core_init(struct ath6kl *ar) 38 { 39 struct ath6kl_bmi_target_info targ_info; 40 struct net_device *ndev; 41 int ret = 0, i; 42 43 ar->ath6kl_wq = create_singlethread_workqueue("ath6kl"); 44 if (!ar->ath6kl_wq) 45 return -ENOMEM; 46 47 ret = ath6kl_bmi_init(ar); 48 if (ret) 49 goto err_wq; 50 51 /* 52 * Turn on power to get hardware (target) version and leave power 53 * on delibrately as we will boot the hardware anyway within few 54 * seconds. 55 */ 56 ret = ath6kl_hif_power_on(ar); 57 if (ret) 58 goto err_bmi_cleanup; 59 60 ret = ath6kl_bmi_get_target_info(ar, &targ_info); 61 if (ret) 62 goto err_power_off; 63 64 ar->version.target_ver = le32_to_cpu(targ_info.version); 65 ar->target_type = le32_to_cpu(targ_info.type); 66 ar->wiphy->hw_version = le32_to_cpu(targ_info.version); 67 68 ret = ath6kl_init_hw_params(ar); 69 if (ret) 70 goto err_power_off; 71 72 ar->htc_target = ath6kl_htc_create(ar); 73 74 if (!ar->htc_target) { 75 ret = -ENOMEM; 76 goto err_power_off; 77 } 78 79 ret = ath6kl_init_fetch_firmwares(ar); 80 if (ret) 81 goto err_htc_cleanup; 82 83 /* FIXME: we should free all firmwares in the error cases below */ 84 85 /* Indicate that WMI is enabled (although not ready yet) */ 86 set_bit(WMI_ENABLED, &ar->flag); 87 ar->wmi = ath6kl_wmi_init(ar); 88 if (!ar->wmi) { 89 ath6kl_err("failed to initialize wmi\n"); 90 ret = -EIO; 91 goto err_htc_cleanup; 92 } 93 94 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi); 95 96 ret = ath6kl_cfg80211_init(ar); 97 if (ret) 98 goto err_node_cleanup; 99 100 ret = ath6kl_debug_init(ar); 101 if (ret) { 102 wiphy_unregister(ar->wiphy); 103 goto err_node_cleanup; 104 } 105 106 for (i = 0; i < ar->vif_max; i++) 107 ar->avail_idx_map |= BIT(i); 108 109 rtnl_lock(); 110 111 /* Add an initial station interface */ 112 ndev = ath6kl_interface_add(ar, "wlan%d", NL80211_IFTYPE_STATION, 0, 113 INFRA_NETWORK); 114 115 rtnl_unlock(); 116 117 if (!ndev) { 118 ath6kl_err("Failed to instantiate a network device\n"); 119 ret = -ENOMEM; 120 wiphy_unregister(ar->wiphy); 121 goto err_debug_init; 122 } 123 124 125 ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n", 126 __func__, ndev->name, ndev, ar); 127 128 /* setup access class priority mappings */ 129 ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest */ 130 ar->ac_stream_pri_map[WMM_AC_BE] = 1; 131 ar->ac_stream_pri_map[WMM_AC_VI] = 2; 132 ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */ 133 134 /* give our connected endpoints some buffers */ 135 ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep); 136 ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]); 137 138 /* allocate some buffers that handle larger AMSDU frames */ 139 ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS); 140 141 ath6kl_cookie_init(ar); 142 143 ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER | 144 ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST; 145 146 if (suspend_cutpower) 147 ar->conf_flags |= ATH6KL_CONF_SUSPEND_CUTPOWER; 148 149 if (uart_debug) 150 ar->conf_flags |= ATH6KL_CONF_UART_DEBUG; 151 152 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM | 153 WIPHY_FLAG_HAVE_AP_SME | 154 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 155 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; 156 157 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN, ar->fw_capabilities)) 158 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; 159 160 ar->wiphy->probe_resp_offload = 161 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 162 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 163 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P | 164 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U; 165 166 set_bit(FIRST_BOOT, &ar->flag); 167 168 ndev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM; 169 170 ret = ath6kl_init_hw_start(ar); 171 if (ret) { 172 ath6kl_err("Failed to start hardware: %d\n", ret); 173 goto err_rxbuf_cleanup; 174 } 175 176 /* 177 * Set mac address which is received in ready event 178 * FIXME: Move to ath6kl_interface_add() 179 */ 180 memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN); 181 182 return ret; 183 184 err_rxbuf_cleanup: 185 ath6kl_htc_flush_rx_buf(ar->htc_target); 186 ath6kl_cleanup_amsdu_rxbufs(ar); 187 rtnl_lock(); 188 ath6kl_cfg80211_vif_cleanup(netdev_priv(ndev)); 189 rtnl_unlock(); 190 wiphy_unregister(ar->wiphy); 191 err_debug_init: 192 ath6kl_debug_cleanup(ar); 193 err_node_cleanup: 194 ath6kl_wmi_shutdown(ar->wmi); 195 clear_bit(WMI_ENABLED, &ar->flag); 196 ar->wmi = NULL; 197 err_htc_cleanup: 198 ath6kl_htc_cleanup(ar->htc_target); 199 err_power_off: 200 ath6kl_hif_power_off(ar); 201 err_bmi_cleanup: 202 ath6kl_bmi_cleanup(ar); 203 err_wq: 204 destroy_workqueue(ar->ath6kl_wq); 205 206 return ret; 207 } 208 EXPORT_SYMBOL(ath6kl_core_init); 209 210 struct ath6kl *ath6kl_core_create(struct device *dev) 211 { 212 struct ath6kl *ar; 213 u8 ctr; 214 215 ar = ath6kl_cfg80211_create(); 216 if (!ar) 217 return NULL; 218 219 ar->p2p = !!ath6kl_p2p; 220 ar->dev = dev; 221 222 ar->vif_max = 1; 223 224 ar->max_norm_iface = 1; 225 226 spin_lock_init(&ar->lock); 227 spin_lock_init(&ar->mcastpsq_lock); 228 spin_lock_init(&ar->list_lock); 229 230 init_waitqueue_head(&ar->event_wq); 231 sema_init(&ar->sem, 1); 232 233 INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue); 234 INIT_LIST_HEAD(&ar->vif_list); 235 236 clear_bit(WMI_ENABLED, &ar->flag); 237 clear_bit(SKIP_SCAN, &ar->flag); 238 clear_bit(DESTROY_IN_PROGRESS, &ar->flag); 239 240 ar->listen_intvl_b = A_DEFAULT_LISTEN_INTERVAL; 241 ar->tx_pwr = 0; 242 243 ar->intra_bss = 1; 244 ar->lrssi_roam_threshold = DEF_LRSSI_ROAM_THRESHOLD; 245 246 ar->state = ATH6KL_STATE_OFF; 247 248 memset((u8 *)ar->sta_list, 0, 249 AP_MAX_NUM_STA * sizeof(struct ath6kl_sta)); 250 251 /* Init the PS queues */ 252 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { 253 spin_lock_init(&ar->sta_list[ctr].psq_lock); 254 skb_queue_head_init(&ar->sta_list[ctr].psq); 255 skb_queue_head_init(&ar->sta_list[ctr].apsdq); 256 ar->sta_list[ctr].aggr_conn = 257 kzalloc(sizeof(struct aggr_info_conn), GFP_KERNEL); 258 if (!ar->sta_list[ctr].aggr_conn) { 259 ath6kl_err("Failed to allocate memory for sta aggregation information\n"); 260 ath6kl_core_destroy(ar); 261 return NULL; 262 } 263 } 264 265 skb_queue_head_init(&ar->mcastpsq); 266 267 memcpy(ar->ap_country_code, DEF_AP_COUNTRY_CODE, 3); 268 269 return ar; 270 } 271 EXPORT_SYMBOL(ath6kl_core_create); 272 273 void ath6kl_core_cleanup(struct ath6kl *ar) 274 { 275 ath6kl_hif_power_off(ar); 276 277 destroy_workqueue(ar->ath6kl_wq); 278 279 if (ar->htc_target) 280 ath6kl_htc_cleanup(ar->htc_target); 281 282 ath6kl_cookie_cleanup(ar); 283 284 ath6kl_cleanup_amsdu_rxbufs(ar); 285 286 ath6kl_bmi_cleanup(ar); 287 288 ath6kl_debug_cleanup(ar); 289 290 kfree(ar->fw_board); 291 kfree(ar->fw_otp); 292 kfree(ar->fw); 293 kfree(ar->fw_patch); 294 kfree(ar->fw_testscript); 295 296 ath6kl_cfg80211_cleanup(ar); 297 } 298 EXPORT_SYMBOL(ath6kl_core_cleanup); 299 300 void ath6kl_core_destroy(struct ath6kl *ar) 301 { 302 ath6kl_cfg80211_destroy(ar); 303 } 304 EXPORT_SYMBOL(ath6kl_core_destroy); 305 306 MODULE_AUTHOR("Qualcomm Atheros"); 307 MODULE_DESCRIPTION("Core module for AR600x SDIO and USB devices."); 308 MODULE_LICENSE("Dual BSD/GPL"); 309