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