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- /*
- * 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 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(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;
- 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();
- /* Add an initial station interface */
- wdev = ath6kl_interface_add(ar, "wlan%d", NET_NAME_ENUM,
- NL80211_IFTYPE_STATION, 0, INFRA_NETWORK);
- 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");
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