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 static unsigned int testmode; 32 33 module_param(debug_mask, uint, 0644); 34 module_param(suspend_cutpower, bool, 0444); 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_cutpower) 151 ar->conf_flags |= ATH6KL_CONF_SUSPEND_CUTPOWER; 152 153 if (uart_debug) 154 ar->conf_flags |= ATH6KL_CONF_UART_DEBUG; 155 156 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_FW_ROAM | 157 WIPHY_FLAG_HAVE_AP_SME | 158 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 159 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD; 160 161 if (test_bit(ATH6KL_FW_CAPABILITY_SCHED_SCAN, ar->fw_capabilities)) 162 ar->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; 163 164 ar->wiphy->probe_resp_offload = 165 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 166 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 167 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P | 168 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U; 169 170 set_bit(FIRST_BOOT, &ar->flag); 171 172 ndev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM; 173 174 ret = ath6kl_init_hw_start(ar); 175 if (ret) { 176 ath6kl_err("Failed to start hardware: %d\n", ret); 177 goto err_rxbuf_cleanup; 178 } 179 180 /* 181 * Set mac address which is received in ready event 182 * FIXME: Move to ath6kl_interface_add() 183 */ 184 memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN); 185 186 return ret; 187 188 err_rxbuf_cleanup: 189 ath6kl_htc_flush_rx_buf(ar->htc_target); 190 ath6kl_cleanup_amsdu_rxbufs(ar); 191 rtnl_lock(); 192 ath6kl_cfg80211_vif_cleanup(netdev_priv(ndev)); 193 rtnl_unlock(); 194 wiphy_unregister(ar->wiphy); 195 err_debug_init: 196 ath6kl_debug_cleanup(ar); 197 err_node_cleanup: 198 ath6kl_wmi_shutdown(ar->wmi); 199 clear_bit(WMI_ENABLED, &ar->flag); 200 ar->wmi = NULL; 201 err_htc_cleanup: 202 ath6kl_htc_cleanup(ar->htc_target); 203 err_power_off: 204 ath6kl_hif_power_off(ar); 205 err_bmi_cleanup: 206 ath6kl_bmi_cleanup(ar); 207 err_wq: 208 destroy_workqueue(ar->ath6kl_wq); 209 210 return ret; 211 } 212 EXPORT_SYMBOL(ath6kl_core_init); 213 214 struct ath6kl *ath6kl_core_create(struct device *dev) 215 { 216 struct ath6kl *ar; 217 u8 ctr; 218 219 ar = ath6kl_cfg80211_create(); 220 if (!ar) 221 return NULL; 222 223 ar->p2p = !!ath6kl_p2p; 224 ar->dev = dev; 225 226 ar->vif_max = 1; 227 228 ar->max_norm_iface = 1; 229 230 spin_lock_init(&ar->lock); 231 spin_lock_init(&ar->mcastpsq_lock); 232 spin_lock_init(&ar->list_lock); 233 234 init_waitqueue_head(&ar->event_wq); 235 sema_init(&ar->sem, 1); 236 237 INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue); 238 INIT_LIST_HEAD(&ar->vif_list); 239 240 clear_bit(WMI_ENABLED, &ar->flag); 241 clear_bit(SKIP_SCAN, &ar->flag); 242 clear_bit(DESTROY_IN_PROGRESS, &ar->flag); 243 244 ar->listen_intvl_b = A_DEFAULT_LISTEN_INTERVAL; 245 ar->tx_pwr = 0; 246 247 ar->intra_bss = 1; 248 ar->lrssi_roam_threshold = DEF_LRSSI_ROAM_THRESHOLD; 249 250 ar->state = ATH6KL_STATE_OFF; 251 252 memset((u8 *)ar->sta_list, 0, 253 AP_MAX_NUM_STA * sizeof(struct ath6kl_sta)); 254 255 /* Init the PS queues */ 256 for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { 257 spin_lock_init(&ar->sta_list[ctr].psq_lock); 258 skb_queue_head_init(&ar->sta_list[ctr].psq); 259 skb_queue_head_init(&ar->sta_list[ctr].apsdq); 260 ar->sta_list[ctr].aggr_conn = 261 kzalloc(sizeof(struct aggr_info_conn), GFP_KERNEL); 262 if (!ar->sta_list[ctr].aggr_conn) { 263 ath6kl_err("Failed to allocate memory for sta aggregation information\n"); 264 ath6kl_core_destroy(ar); 265 return NULL; 266 } 267 } 268 269 skb_queue_head_init(&ar->mcastpsq); 270 271 memcpy(ar->ap_country_code, DEF_AP_COUNTRY_CODE, 3); 272 273 return ar; 274 } 275 EXPORT_SYMBOL(ath6kl_core_create); 276 277 void ath6kl_core_cleanup(struct ath6kl *ar) 278 { 279 ath6kl_hif_power_off(ar); 280 281 destroy_workqueue(ar->ath6kl_wq); 282 283 if (ar->htc_target) 284 ath6kl_htc_cleanup(ar->htc_target); 285 286 ath6kl_cookie_cleanup(ar); 287 288 ath6kl_cleanup_amsdu_rxbufs(ar); 289 290 ath6kl_bmi_cleanup(ar); 291 292 ath6kl_debug_cleanup(ar); 293 294 kfree(ar->fw_board); 295 kfree(ar->fw_otp); 296 kfree(ar->fw); 297 kfree(ar->fw_patch); 298 kfree(ar->fw_testscript); 299 300 ath6kl_cfg80211_cleanup(ar); 301 } 302 EXPORT_SYMBOL(ath6kl_core_cleanup); 303 304 void ath6kl_core_destroy(struct ath6kl *ar) 305 { 306 ath6kl_cfg80211_destroy(ar); 307 } 308 EXPORT_SYMBOL(ath6kl_core_destroy); 309 310 MODULE_AUTHOR("Qualcomm Atheros"); 311 MODULE_DESCRIPTION("Core module for AR600x SDIO and USB devices."); 312 MODULE_LICENSE("Dual BSD/GPL"); 313