| /* |
| * Copyright (c) 2004-2011 Atheros Communications Inc. |
| * Copyright (c) 2011-2012 Qualcomm Atheros, Inc. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #include "core.h" |
| |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/export.h> |
| #include <linux/vmalloc.h> |
| |
| #include "debug.h" |
| #include "hif-ops.h" |
| #include "htc-ops.h" |
| #include "cfg80211.h" |
| |
| unsigned int debug_mask; |
| static unsigned int suspend_mode; |
| static unsigned int wow_mode; |
| static unsigned int uart_debug; |
| static unsigned int uart_rate = 115200; |
| static unsigned int ath6kl_p2p; |
| static unsigned int testmode; |
| static unsigned int recovery_enable; |
| static unsigned int heart_beat_poll; |
| |
| module_param(debug_mask, uint, 0644); |
| module_param(suspend_mode, uint, 0644); |
| module_param(wow_mode, uint, 0644); |
| module_param(uart_debug, uint, 0644); |
| module_param(uart_rate, uint, 0644); |
| module_param(ath6kl_p2p, uint, 0644); |
| module_param(testmode, uint, 0644); |
| module_param(recovery_enable, uint, 0644); |
| module_param(heart_beat_poll, uint, 0644); |
| MODULE_PARM_DESC(recovery_enable, "Enable recovery from firmware error"); |
| MODULE_PARM_DESC(heart_beat_poll, |
| "Enable fw error detection periodic polling in msecs - Also set recovery_enable for this to be effective"); |
| |
| |
| void ath6kl_core_tx_complete(struct ath6kl *ar, struct sk_buff *skb) |
| { |
| ath6kl_htc_tx_complete(ar, skb); |
| } |
| EXPORT_SYMBOL(ath6kl_core_tx_complete); |
| |
| void ath6kl_core_rx_complete(struct ath6kl *ar, struct sk_buff *skb, u8 pipe) |
| { |
| ath6kl_htc_rx_complete(ar, skb, pipe); |
| } |
| EXPORT_SYMBOL(ath6kl_core_rx_complete); |
| |
| int ath6kl_core_init(struct ath6kl *ar, enum ath6kl_htc_type htc_type) |
| { |
| struct ath6kl_bmi_target_info targ_info; |
| struct wireless_dev *wdev; |
| int ret = 0, i; |
| |
| switch (htc_type) { |
| case ATH6KL_HTC_TYPE_MBOX: |
| ath6kl_htc_mbox_attach(ar); |
| break; |
| case ATH6KL_HTC_TYPE_PIPE: |
| ath6kl_htc_pipe_attach(ar); |
| break; |
| default: |
| WARN_ON(1); |
| return -ENOMEM; |
| } |
| |
| ar->ath6kl_wq = create_singlethread_workqueue("ath6kl"); |
| if (!ar->ath6kl_wq) |
| return -ENOMEM; |
| |
| ret = ath6kl_bmi_init(ar); |
| if (ret) |
| goto err_wq; |
| |
| /* |
| * Turn on power to get hardware (target) version and leave power |
| * on delibrately as we will boot the hardware anyway within few |
| * seconds. |
| */ |
| ret = ath6kl_hif_power_on(ar); |
| if (ret) |
| goto err_bmi_cleanup; |
| |
| ret = ath6kl_bmi_get_target_info(ar, &targ_info); |
| if (ret) |
| goto err_power_off; |
| |
| ar->version.target_ver = le32_to_cpu(targ_info.version); |
| ar->target_type = le32_to_cpu(targ_info.type); |
| ar->wiphy->hw_version = le32_to_cpu(targ_info.version); |
| |
| ret = ath6kl_init_hw_params(ar); |
| if (ret) |
| goto err_power_off; |
| |
| ar->htc_target = ath6kl_htc_create(ar); |
| |
| if (!ar->htc_target) { |
| ret = -ENOMEM; |
| goto err_power_off; |
| } |
| |
| ar->testmode = testmode; |
| |
| ret = ath6kl_init_fetch_firmwares(ar); |
| if (ret) |
| goto err_htc_cleanup; |
| |
| /* FIXME: we should free all firmwares in the error cases below */ |
| |
| /* |
| * Backwards compatibility support for older ar6004 firmware images |
| * which do not set these feature flags. |
| */ |
| if (ar->target_type == TARGET_TYPE_AR6004 && |
| ar->fw_api <= 4) { |
| __set_bit(ATH6KL_FW_CAPABILITY_64BIT_RATES, |
| ar->fw_capabilities); |
| __set_bit(ATH6KL_FW_CAPABILITY_AP_INACTIVITY_MINS, |
| ar->fw_capabilities); |
| |
| if (ar->hw.id == AR6004_HW_1_3_VERSION) |
| __set_bit(ATH6KL_FW_CAPABILITY_MAP_LP_ENDPOINT, |
| ar->fw_capabilities); |
| } |
| |
| /* Indicate that WMI is enabled (although not ready yet) */ |
| set_bit(WMI_ENABLED, &ar->flag); |
| ar->wmi = ath6kl_wmi_init(ar); |
| if (!ar->wmi) { |
| ath6kl_err("failed to initialize wmi\n"); |
| ret = -EIO; |
| goto err_htc_cleanup; |
| } |
| |
| ath6kl_dbg(ATH6KL_DBG_TRC, "%s: got wmi @ 0x%p.\n", __func__, ar->wmi); |
| |
| /* setup access class priority mappings */ |
| ar->ac_stream_pri_map[WMM_AC_BK] = 0; /* lowest */ |
| ar->ac_stream_pri_map[WMM_AC_BE] = 1; |
| ar->ac_stream_pri_map[WMM_AC_VI] = 2; |
| ar->ac_stream_pri_map[WMM_AC_VO] = 3; /* highest */ |
| |
| /* allocate some buffers that handle larger AMSDU frames */ |
| ath6kl_refill_amsdu_rxbufs(ar, ATH6KL_MAX_AMSDU_RX_BUFFERS); |
| |
| ath6kl_cookie_init(ar); |
| |
| ar->conf_flags = ATH6KL_CONF_IGNORE_ERP_BARKER | |
| ATH6KL_CONF_ENABLE_11N | ATH6KL_CONF_ENABLE_TX_BURST; |
| |
| if (suspend_mode && |
| suspend_mode >= WLAN_POWER_STATE_CUT_PWR && |
| suspend_mode <= WLAN_POWER_STATE_WOW) |
| ar->suspend_mode = suspend_mode; |
| else |
| ar->suspend_mode = 0; |
| |
| if (suspend_mode == WLAN_POWER_STATE_WOW && |
| (wow_mode == WLAN_POWER_STATE_CUT_PWR || |
| wow_mode == WLAN_POWER_STATE_DEEP_SLEEP)) |
| ar->wow_suspend_mode = wow_mode; |
| else |
| ar->wow_suspend_mode = 0; |
| |
| if (uart_debug) |
| ar->conf_flags |= ATH6KL_CONF_UART_DEBUG; |
| ar->hw.uarttx_rate = uart_rate; |
| |
| set_bit(FIRST_BOOT, &ar->flag); |
| |
| ath6kl_debug_init(ar); |
| |
| ret = ath6kl_init_hw_start(ar); |
| if (ret) { |
| ath6kl_err("Failed to start hardware: %d\n", ret); |
| goto err_rxbuf_cleanup; |
| } |
| |
| /* give our connected endpoints some buffers */ |
| ath6kl_rx_refill(ar->htc_target, ar->ctrl_ep); |
| ath6kl_rx_refill(ar->htc_target, ar->ac2ep_map[WMM_AC_BE]); |
| |
| ret = ath6kl_cfg80211_init(ar); |
| if (ret) |
| goto err_rxbuf_cleanup; |
| |
| ret = ath6kl_debug_init_fs(ar); |
| if (ret) { |
| wiphy_unregister(ar->wiphy); |
| goto err_rxbuf_cleanup; |
| } |
| |
| for (i = 0; i < ar->vif_max; i++) |
| ar->avail_idx_map |= BIT(i); |
| |
| rtnl_lock(); |
| wiphy_lock(ar->wiphy); |
| |
| /* Add an initial station interface */ |
| wdev = ath6kl_interface_add(ar, "wlan%d", NET_NAME_ENUM, |
| NL80211_IFTYPE_STATION, 0, INFRA_NETWORK); |
| |
| wiphy_unlock(ar->wiphy); |
| rtnl_unlock(); |
| |
| if (!wdev) { |
| ath6kl_err("Failed to instantiate a network device\n"); |
| ret = -ENOMEM; |
| wiphy_unregister(ar->wiphy); |
| goto err_rxbuf_cleanup; |
| } |
| |
| ath6kl_dbg(ATH6KL_DBG_TRC, "%s: name=%s dev=0x%p, ar=0x%p\n", |
| __func__, wdev->netdev->name, wdev->netdev, ar); |
| |
| ar->fw_recovery.enable = !!recovery_enable; |
| if (!ar->fw_recovery.enable) |
| return ret; |
| |
| if (heart_beat_poll && |
| test_bit(ATH6KL_FW_CAPABILITY_HEART_BEAT_POLL, |
| ar->fw_capabilities)) |
| ar->fw_recovery.hb_poll = heart_beat_poll; |
| |
| ath6kl_recovery_init(ar); |
| |
| return ret; |
| |
| err_rxbuf_cleanup: |
| ath6kl_debug_cleanup(ar); |
| ath6kl_htc_flush_rx_buf(ar->htc_target); |
| ath6kl_cleanup_amsdu_rxbufs(ar); |
| ath6kl_wmi_shutdown(ar->wmi); |
| clear_bit(WMI_ENABLED, &ar->flag); |
| ar->wmi = NULL; |
| err_htc_cleanup: |
| ath6kl_htc_cleanup(ar->htc_target); |
| err_power_off: |
| ath6kl_hif_power_off(ar); |
| err_bmi_cleanup: |
| ath6kl_bmi_cleanup(ar); |
| err_wq: |
| destroy_workqueue(ar->ath6kl_wq); |
| |
| return ret; |
| } |
| EXPORT_SYMBOL(ath6kl_core_init); |
| |
| struct ath6kl *ath6kl_core_create(struct device *dev) |
| { |
| struct ath6kl *ar; |
| u8 ctr; |
| |
| ar = ath6kl_cfg80211_create(); |
| if (!ar) |
| return NULL; |
| |
| ar->p2p = !!ath6kl_p2p; |
| ar->dev = dev; |
| |
| ar->vif_max = 1; |
| |
| ar->max_norm_iface = 1; |
| |
| spin_lock_init(&ar->lock); |
| spin_lock_init(&ar->mcastpsq_lock); |
| spin_lock_init(&ar->list_lock); |
| |
| init_waitqueue_head(&ar->event_wq); |
| sema_init(&ar->sem, 1); |
| |
| INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue); |
| INIT_LIST_HEAD(&ar->vif_list); |
| |
| clear_bit(WMI_ENABLED, &ar->flag); |
| clear_bit(SKIP_SCAN, &ar->flag); |
| clear_bit(DESTROY_IN_PROGRESS, &ar->flag); |
| |
| ar->tx_pwr = 0; |
| ar->intra_bss = 1; |
| ar->lrssi_roam_threshold = DEF_LRSSI_ROAM_THRESHOLD; |
| |
| ar->state = ATH6KL_STATE_OFF; |
| |
| memset((u8 *)ar->sta_list, 0, |
| AP_MAX_NUM_STA * sizeof(struct ath6kl_sta)); |
| |
| /* Init the PS queues */ |
| for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { |
| spin_lock_init(&ar->sta_list[ctr].psq_lock); |
| skb_queue_head_init(&ar->sta_list[ctr].psq); |
| skb_queue_head_init(&ar->sta_list[ctr].apsdq); |
| ar->sta_list[ctr].mgmt_psq_len = 0; |
| INIT_LIST_HEAD(&ar->sta_list[ctr].mgmt_psq); |
| ar->sta_list[ctr].aggr_conn = |
| kzalloc(sizeof(struct aggr_info_conn), GFP_KERNEL); |
| if (!ar->sta_list[ctr].aggr_conn) { |
| ath6kl_err("Failed to allocate memory for sta aggregation information\n"); |
| ath6kl_core_destroy(ar); |
| return NULL; |
| } |
| } |
| |
| skb_queue_head_init(&ar->mcastpsq); |
| |
| memcpy(ar->ap_country_code, DEF_AP_COUNTRY_CODE, 3); |
| |
| return ar; |
| } |
| EXPORT_SYMBOL(ath6kl_core_create); |
| |
| void ath6kl_core_cleanup(struct ath6kl *ar) |
| { |
| ath6kl_hif_power_off(ar); |
| |
| ath6kl_recovery_cleanup(ar); |
| |
| destroy_workqueue(ar->ath6kl_wq); |
| |
| if (ar->htc_target) |
| ath6kl_htc_cleanup(ar->htc_target); |
| |
| ath6kl_cookie_cleanup(ar); |
| |
| ath6kl_cleanup_amsdu_rxbufs(ar); |
| |
| ath6kl_bmi_cleanup(ar); |
| |
| ath6kl_debug_cleanup(ar); |
| |
| kfree(ar->fw_board); |
| kfree(ar->fw_otp); |
| vfree(ar->fw); |
| kfree(ar->fw_patch); |
| kfree(ar->fw_testscript); |
| |
| ath6kl_cfg80211_cleanup(ar); |
| } |
| EXPORT_SYMBOL(ath6kl_core_cleanup); |
| |
| void ath6kl_core_destroy(struct ath6kl *ar) |
| { |
| ath6kl_cfg80211_destroy(ar); |
| } |
| EXPORT_SYMBOL(ath6kl_core_destroy); |
| |
| MODULE_AUTHOR("Qualcomm Atheros"); |
| MODULE_DESCRIPTION("Core module for AR600x SDIO and USB devices."); |
| MODULE_LICENSE("Dual BSD/GPL"); |