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path: root/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/htc_drv_gpio.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/htc_drv_gpio.c412
1 files changed, 140 insertions, 272 deletions
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c b/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c
index fe70f67aa08..50f74a2a4cf 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2010 Atheros Communications Inc.
+ * Copyright (c) 2010-2011 Atheros Communications 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
@@ -20,6 +20,10 @@
/* BTCOEX */
/******************/
+#define ATH_HTC_BTCOEX_PRODUCT_ID "wb193"
+
+#ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
+
/*
* Detects if there is any priority bt traffic
*/
@@ -33,17 +37,18 @@ static void ath_detect_bt_priority(struct ath9k_htc_priv *priv)
if (time_after(jiffies, btcoex->bt_priority_time +
msecs_to_jiffies(ATH_BT_PRIORITY_TIME_THRESHOLD))) {
- priv->op_flags &= ~(OP_BT_PRIORITY_DETECTED | OP_BT_SCAN);
+ clear_bit(OP_BT_PRIORITY_DETECTED, &priv->op_flags);
+ clear_bit(OP_BT_SCAN, &priv->op_flags);
/* Detect if colocated bt started scanning */
if (btcoex->bt_priority_cnt >= ATH_BT_CNT_SCAN_THRESHOLD) {
- ath_dbg(ath9k_hw_common(ah), ATH_DBG_BTCOEX,
+ ath_dbg(ath9k_hw_common(ah), BTCOEX,
"BT scan detected\n");
- priv->op_flags |= (OP_BT_SCAN |
- OP_BT_PRIORITY_DETECTED);
+ set_bit(OP_BT_PRIORITY_DETECTED, &priv->op_flags);
+ set_bit(OP_BT_SCAN, &priv->op_flags);
} else if (btcoex->bt_priority_cnt >= ATH_BT_CNT_THRESHOLD) {
- ath_dbg(ath9k_hw_common(ah), ATH_DBG_BTCOEX,
+ ath_dbg(ath9k_hw_common(ah), BTCOEX,
"BT priority traffic detected\n");
- priv->op_flags |= OP_BT_PRIORITY_DETECTED;
+ set_bit(OP_BT_PRIORITY_DETECTED, &priv->op_flags);
}
btcoex->bt_priority_cnt = 0;
@@ -63,23 +68,23 @@ static void ath_btcoex_period_work(struct work_struct *work)
struct ath_btcoex *btcoex = &priv->btcoex;
struct ath_common *common = ath9k_hw_common(priv->ah);
u32 timer_period;
- bool is_btscan;
int ret;
- u8 cmd_rsp, aggr;
ath_detect_bt_priority(priv);
- is_btscan = !!(priv->op_flags & OP_BT_SCAN);
-
- aggr = priv->op_flags & OP_BT_PRIORITY_DETECTED;
-
- WMI_CMD_BUF(WMI_AGGR_LIMIT_CMD, &aggr);
+ ret = ath9k_htc_update_cap_target(priv,
+ test_bit(OP_BT_PRIORITY_DETECTED, &priv->op_flags));
+ if (ret) {
+ ath_err(common, "Unable to set BTCOEX parameters\n");
+ return;
+ }
- ath9k_cmn_btcoex_bt_stomp(common, is_btscan ? ATH_BTCOEX_STOMP_ALL :
- btcoex->bt_stomp_type);
+ ath9k_hw_btcoex_bt_stomp(priv->ah, test_bit(OP_BT_SCAN, &priv->op_flags) ?
+ ATH_BTCOEX_STOMP_ALL : btcoex->bt_stomp_type);
- timer_period = is_btscan ? btcoex->btscan_no_stomp :
- btcoex->btcoex_no_stomp;
+ ath9k_hw_btcoex_enable(priv->ah);
+ timer_period = test_bit(OP_BT_SCAN, &priv->op_flags) ?
+ btcoex->btscan_no_stomp : btcoex->btcoex_no_stomp;
ieee80211_queue_delayed_work(priv->hw, &priv->duty_cycle_work,
msecs_to_jiffies(timer_period));
ieee80211_queue_delayed_work(priv->hw, &priv->coex_period_work,
@@ -97,18 +102,19 @@ static void ath_btcoex_duty_cycle_work(struct work_struct *work)
struct ath_hw *ah = priv->ah;
struct ath_btcoex *btcoex = &priv->btcoex;
struct ath_common *common = ath9k_hw_common(ah);
- bool is_btscan = priv->op_flags & OP_BT_SCAN;
- ath_dbg(common, ATH_DBG_BTCOEX,
- "time slice work for bt and wlan\n");
+ ath_dbg(common, BTCOEX, "time slice work for bt and wlan\n");
- if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_LOW || is_btscan)
- ath9k_cmn_btcoex_bt_stomp(common, ATH_BTCOEX_STOMP_NONE);
+ if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_LOW ||
+ test_bit(OP_BT_SCAN, &priv->op_flags))
+ ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_NONE);
else if (btcoex->bt_stomp_type == ATH_BTCOEX_STOMP_ALL)
- ath9k_cmn_btcoex_bt_stomp(common, ATH_BTCOEX_STOMP_LOW);
+ ath9k_hw_btcoex_bt_stomp(ah, ATH_BTCOEX_STOMP_LOW);
+
+ ath9k_hw_btcoex_enable(priv->ah);
}
-void ath_htc_init_btcoex_work(struct ath9k_htc_priv *priv)
+static void ath_htc_init_btcoex_work(struct ath9k_htc_priv *priv)
{
struct ath_btcoex *btcoex = &priv->btcoex;
@@ -125,16 +131,17 @@ void ath_htc_init_btcoex_work(struct ath9k_htc_priv *priv)
* (Re)start btcoex work
*/
-void ath_htc_resume_btcoex_work(struct ath9k_htc_priv *priv)
+static void ath_htc_resume_btcoex_work(struct ath9k_htc_priv *priv)
{
struct ath_btcoex *btcoex = &priv->btcoex;
struct ath_hw *ah = priv->ah;
- ath_dbg(ath9k_hw_common(ah), ATH_DBG_BTCOEX, "Starting btcoex work\n");
+ ath_dbg(ath9k_hw_common(ah), BTCOEX, "Starting btcoex work\n");
btcoex->bt_priority_cnt = 0;
btcoex->bt_priority_time = jiffies;
- priv->op_flags &= ~(OP_BT_PRIORITY_DETECTED | OP_BT_SCAN);
+ clear_bit(OP_BT_PRIORITY_DETECTED, &priv->op_flags);
+ clear_bit(OP_BT_SCAN, &priv->op_flags);
ieee80211_queue_delayed_work(priv->hw, &priv->coex_period_work, 0);
}
@@ -142,150 +149,125 @@ void ath_htc_resume_btcoex_work(struct ath9k_htc_priv *priv)
/*
* Cancel btcoex and bt duty cycle work.
*/
-void ath_htc_cancel_btcoex_work(struct ath9k_htc_priv *priv)
+static void ath_htc_cancel_btcoex_work(struct ath9k_htc_priv *priv)
{
cancel_delayed_work_sync(&priv->coex_period_work);
cancel_delayed_work_sync(&priv->duty_cycle_work);
}
-/*******/
-/* LED */
-/*******/
-
-static void ath9k_led_blink_work(struct work_struct *work)
+void ath9k_htc_start_btcoex(struct ath9k_htc_priv *priv)
{
- struct ath9k_htc_priv *priv = container_of(work, struct ath9k_htc_priv,
- ath9k_led_blink_work.work);
+ struct ath_hw *ah = priv->ah;
- if (!(priv->op_flags & OP_LED_ASSOCIATED))
- return;
+ if (ath9k_hw_get_btcoex_scheme(ah) == ATH_BTCOEX_CFG_3WIRE) {
+ ath9k_hw_btcoex_set_weight(ah, AR_BT_COEX_WGHT,
+ AR_STOMP_LOW_WLAN_WGHT, 0);
+ ath9k_hw_btcoex_enable(ah);
+ ath_htc_resume_btcoex_work(priv);
+ }
+}
- if ((priv->led_on_duration == ATH_LED_ON_DURATION_IDLE) ||
- (priv->led_off_duration == ATH_LED_OFF_DURATION_IDLE))
- ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 0);
- else
- ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin,
- (priv->op_flags & OP_LED_ON) ? 1 : 0);
-
- ieee80211_queue_delayed_work(priv->hw,
- &priv->ath9k_led_blink_work,
- (priv->op_flags & OP_LED_ON) ?
- msecs_to_jiffies(priv->led_off_duration) :
- msecs_to_jiffies(priv->led_on_duration));
-
- priv->led_on_duration = priv->led_on_cnt ?
- max((ATH_LED_ON_DURATION_IDLE - priv->led_on_cnt), 25) :
- ATH_LED_ON_DURATION_IDLE;
- priv->led_off_duration = priv->led_off_cnt ?
- max((ATH_LED_OFF_DURATION_IDLE - priv->led_off_cnt), 10) :
- ATH_LED_OFF_DURATION_IDLE;
- priv->led_on_cnt = priv->led_off_cnt = 0;
-
- if (priv->op_flags & OP_LED_ON)
- priv->op_flags &= ~OP_LED_ON;
- else
- priv->op_flags |= OP_LED_ON;
+void ath9k_htc_stop_btcoex(struct ath9k_htc_priv *priv)
+{
+ struct ath_hw *ah = priv->ah;
+
+ if (ah->btcoex_hw.enabled &&
+ ath9k_hw_get_btcoex_scheme(ah) != ATH_BTCOEX_CFG_NONE) {
+ if (ah->btcoex_hw.scheme == ATH_BTCOEX_CFG_3WIRE)
+ ath_htc_cancel_btcoex_work(priv);
+ ath9k_hw_btcoex_disable(ah);
+ }
}
-static void ath9k_led_brightness_work(struct work_struct *work)
+void ath9k_htc_init_btcoex(struct ath9k_htc_priv *priv, char *product)
{
- struct ath_led *led = container_of(work, struct ath_led,
- brightness_work.work);
- struct ath9k_htc_priv *priv = led->priv;
-
- switch (led->brightness) {
- case LED_OFF:
- if (led->led_type == ATH_LED_ASSOC ||
- led->led_type == ATH_LED_RADIO) {
- ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin,
- (led->led_type == ATH_LED_RADIO));
- priv->op_flags &= ~OP_LED_ASSOCIATED;
- if (led->led_type == ATH_LED_RADIO)
- priv->op_flags &= ~OP_LED_ON;
- } else {
- priv->led_off_cnt++;
- }
+ struct ath_hw *ah = priv->ah;
+ struct ath_common *common = ath9k_hw_common(ah);
+ int qnum;
+
+ /*
+ * Check if BTCOEX is globally disabled.
+ */
+ if (!common->btcoex_enabled) {
+ ah->btcoex_hw.scheme = ATH_BTCOEX_CFG_NONE;
+ return;
+ }
+
+ if (product && strncmp(product, ATH_HTC_BTCOEX_PRODUCT_ID, 5) == 0) {
+ ah->btcoex_hw.scheme = ATH_BTCOEX_CFG_3WIRE;
+ }
+
+ switch (ath9k_hw_get_btcoex_scheme(priv->ah)) {
+ case ATH_BTCOEX_CFG_NONE:
break;
- case LED_FULL:
- if (led->led_type == ATH_LED_ASSOC) {
- priv->op_flags |= OP_LED_ASSOCIATED;
- ieee80211_queue_delayed_work(priv->hw,
- &priv->ath9k_led_blink_work, 0);
- } else if (led->led_type == ATH_LED_RADIO) {
- ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 0);
- priv->op_flags |= OP_LED_ON;
- } else {
- priv->led_on_cnt++;
- }
+ case ATH_BTCOEX_CFG_3WIRE:
+ priv->ah->btcoex_hw.btactive_gpio = 7;
+ priv->ah->btcoex_hw.btpriority_gpio = 6;
+ priv->ah->btcoex_hw.wlanactive_gpio = 8;
+ priv->btcoex.bt_stomp_type = ATH_BTCOEX_STOMP_LOW;
+ ath9k_hw_btcoex_init_3wire(priv->ah);
+ ath_htc_init_btcoex_work(priv);
+ qnum = priv->hwq_map[IEEE80211_AC_BE];
+ ath9k_hw_init_btcoex_hw(priv->ah, qnum);
break;
default:
+ WARN_ON(1);
break;
}
}
-static void ath9k_led_brightness(struct led_classdev *led_cdev,
- enum led_brightness brightness)
-{
- struct ath_led *led = container_of(led_cdev, struct ath_led, led_cdev);
- struct ath9k_htc_priv *priv = led->priv;
+#endif /* CONFIG_ATH9K_BTCOEX_SUPPORT */
- led->brightness = brightness;
- if (!(priv->op_flags & OP_LED_DEINIT))
- ieee80211_queue_delayed_work(priv->hw,
- &led->brightness_work, 0);
-}
+/*******/
+/* LED */
+/*******/
-void ath9k_led_stop_brightness(struct ath9k_htc_priv *priv)
+#ifdef CONFIG_MAC80211_LEDS
+void ath9k_led_work(struct work_struct *work)
{
- cancel_delayed_work_sync(&priv->radio_led.brightness_work);
- cancel_delayed_work_sync(&priv->assoc_led.brightness_work);
- cancel_delayed_work_sync(&priv->tx_led.brightness_work);
- cancel_delayed_work_sync(&priv->rx_led.brightness_work);
+ struct ath9k_htc_priv *priv = container_of(work,
+ struct ath9k_htc_priv,
+ led_work);
+
+ ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin,
+ (priv->brightness == LED_OFF));
}
-static int ath9k_register_led(struct ath9k_htc_priv *priv, struct ath_led *led,
- char *trigger)
+static void ath9k_led_brightness(struct led_classdev *led_cdev,
+ enum led_brightness brightness)
{
- int ret;
+ struct ath9k_htc_priv *priv = container_of(led_cdev,
+ struct ath9k_htc_priv,
+ led_cdev);
- led->priv = priv;
- led->led_cdev.name = led->name;
- led->led_cdev.default_trigger = trigger;
- led->led_cdev.brightness_set = ath9k_led_brightness;
-
- ret = led_classdev_register(wiphy_dev(priv->hw->wiphy), &led->led_cdev);
- if (ret)
- ath_err(ath9k_hw_common(priv->ah),
- "Failed to register led:%s", led->name);
- else
- led->registered = 1;
-
- INIT_DELAYED_WORK(&led->brightness_work, ath9k_led_brightness_work);
-
- return ret;
+ /* Not locked, but it's just a tiny green light..*/
+ priv->brightness = brightness;
+ ieee80211_queue_work(priv->hw, &priv->led_work);
}
-static void ath9k_unregister_led(struct ath_led *led)
+void ath9k_deinit_leds(struct ath9k_htc_priv *priv)
{
- if (led->registered) {
- led_classdev_unregister(&led->led_cdev);
- led->registered = 0;
- }
+ if (!priv->led_registered)
+ return;
+
+ ath9k_led_brightness(&priv->led_cdev, LED_OFF);
+ led_classdev_unregister(&priv->led_cdev);
+ cancel_work_sync(&priv->led_work);
}
-void ath9k_deinit_leds(struct ath9k_htc_priv *priv)
+
+void ath9k_configure_leds(struct ath9k_htc_priv *priv)
{
- priv->op_flags |= OP_LED_DEINIT;
- ath9k_unregister_led(&priv->assoc_led);
- priv->op_flags &= ~OP_LED_ASSOCIATED;
- ath9k_unregister_led(&priv->tx_led);
- ath9k_unregister_led(&priv->rx_led);
- ath9k_unregister_led(&priv->radio_led);
+ /* Configure gpio 1 for output */
+ ath9k_hw_cfg_output(priv->ah, priv->ah->led_pin,
+ AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
+ /* LED off, active low */
+ ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 1);
+
}
void ath9k_init_leds(struct ath9k_htc_priv *priv)
{
- char *trigger;
int ret;
if (AR_SREV_9287(priv->ah))
@@ -297,54 +279,23 @@ void ath9k_init_leds(struct ath9k_htc_priv *priv)
else
priv->ah->led_pin = ATH_LED_PIN_DEF;
- /* Configure gpio 1 for output */
- ath9k_hw_cfg_output(priv->ah, priv->ah->led_pin,
- AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
- /* LED off, active low */
- ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 1);
+ ath9k_configure_leds(priv);
- INIT_DELAYED_WORK(&priv->ath9k_led_blink_work, ath9k_led_blink_work);
-
- trigger = ieee80211_get_radio_led_name(priv->hw);
- snprintf(priv->radio_led.name, sizeof(priv->radio_led.name),
- "ath9k-%s::radio", wiphy_name(priv->hw->wiphy));
- ret = ath9k_register_led(priv, &priv->radio_led, trigger);
- priv->radio_led.led_type = ATH_LED_RADIO;
- if (ret)
- goto fail;
-
- trigger = ieee80211_get_assoc_led_name(priv->hw);
- snprintf(priv->assoc_led.name, sizeof(priv->assoc_led.name),
- "ath9k-%s::assoc", wiphy_name(priv->hw->wiphy));
- ret = ath9k_register_led(priv, &priv->assoc_led, trigger);
- priv->assoc_led.led_type = ATH_LED_ASSOC;
- if (ret)
- goto fail;
-
- trigger = ieee80211_get_tx_led_name(priv->hw);
- snprintf(priv->tx_led.name, sizeof(priv->tx_led.name),
- "ath9k-%s::tx", wiphy_name(priv->hw->wiphy));
- ret = ath9k_register_led(priv, &priv->tx_led, trigger);
- priv->tx_led.led_type = ATH_LED_TX;
- if (ret)
- goto fail;
-
- trigger = ieee80211_get_rx_led_name(priv->hw);
- snprintf(priv->rx_led.name, sizeof(priv->rx_led.name),
- "ath9k-%s::rx", wiphy_name(priv->hw->wiphy));
- ret = ath9k_register_led(priv, &priv->rx_led, trigger);
- priv->rx_led.led_type = ATH_LED_RX;
- if (ret)
- goto fail;
-
- priv->op_flags &= ~OP_LED_DEINIT;
+ snprintf(priv->led_name, sizeof(priv->led_name),
+ "ath9k_htc-%s", wiphy_name(priv->hw->wiphy));
+ priv->led_cdev.name = priv->led_name;
+ priv->led_cdev.brightness_set = ath9k_led_brightness;
- return;
+ ret = led_classdev_register(wiphy_dev(priv->hw->wiphy), &priv->led_cdev);
+ if (ret < 0)
+ return;
+
+ INIT_WORK(&priv->led_work, ath9k_led_work);
+ priv->led_registered = true;
-fail:
- cancel_delayed_work_sync(&priv->ath9k_led_blink_work);
- ath9k_deinit_leds(priv);
+ return;
}
+#endif
/*******************/
/* Rfkill */
@@ -352,8 +303,14 @@ fail:
static bool ath_is_rfkill_set(struct ath9k_htc_priv *priv)
{
- return ath9k_hw_gpio_get(priv->ah, priv->ah->rfkill_gpio) ==
- priv->ah->rfkill_polarity;
+ bool is_blocked;
+
+ ath9k_htc_ps_wakeup(priv);
+ is_blocked = ath9k_hw_gpio_get(priv->ah, priv->ah->rfkill_gpio) ==
+ priv->ah->rfkill_polarity;
+ ath9k_htc_ps_restore(priv);
+
+ return is_blocked;
}
void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw)
@@ -369,92 +326,3 @@ void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv)
if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
wiphy_rfkill_start_polling(priv->hw->wiphy);
}
-
-void ath9k_htc_radio_enable(struct ieee80211_hw *hw)
-{
- struct ath9k_htc_priv *priv = hw->priv;
- struct ath_hw *ah = priv->ah;
- struct ath_common *common = ath9k_hw_common(ah);
- int ret;
- u8 cmd_rsp;
-
- if (!ah->curchan)
- ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
-
- /* Reset the HW */
- ret = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
- if (ret) {
- ath_err(common,
- "Unable to reset hardware; reset status %d (freq %u MHz)\n",
- ret, ah->curchan->channel);
- }
-
- ath_update_txpow(priv);
-
- /* Start RX */
- WMI_CMD(WMI_START_RECV_CMDID);
- ath9k_host_rx_init(priv);
-
- /* Start TX */
- htc_start(priv->htc);
- spin_lock_bh(&priv->tx_lock);
- priv->tx_queues_stop = false;
- spin_unlock_bh(&priv->tx_lock);
- ieee80211_wake_queues(hw);
-
- WMI_CMD(WMI_ENABLE_INTR_CMDID);
-
- /* Enable LED */
- ath9k_hw_cfg_output(ah, ah->led_pin,
- AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
- ath9k_hw_set_gpio(ah, ah->led_pin, 0);
-}
-
-void ath9k_htc_radio_disable(struct ieee80211_hw *hw)
-{
- struct ath9k_htc_priv *priv = hw->priv;
- struct ath_hw *ah = priv->ah;
- struct ath_common *common = ath9k_hw_common(ah);
- int ret;
- u8 cmd_rsp;
-
- ath9k_htc_ps_wakeup(priv);
-
- /* Disable LED */
- ath9k_hw_set_gpio(ah, ah->led_pin, 1);
- ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
-
- WMI_CMD(WMI_DISABLE_INTR_CMDID);
-
- /* Stop TX */
- ieee80211_stop_queues(hw);
- htc_stop(priv->htc);
- WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
- skb_queue_purge(&priv->tx_queue);
-
- /* Stop RX */
- WMI_CMD(WMI_STOP_RECV_CMDID);
-
- /*
- * The MIB counters have to be disabled here,
- * since the target doesn't do it.
- */
- ath9k_hw_disable_mib_counters(ah);
-
- if (!ah->curchan)
- ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
-
- /* Reset the HW */
- ret = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
- if (ret) {
- ath_err(common,
- "Unable to reset hardware; reset status %d (freq %u MHz)\n",
- ret, ah->curchan->channel);
- }
-
- /* Disable the PHY */
- ath9k_hw_phy_disable(ah);
-
- ath9k_htc_ps_restore(priv);
- ath9k_htc_setpower(priv, ATH9K_PM_FULL_SLEEP);
-}