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@@ -1,3 +1,19 @@
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+/*
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+ * Copyright (c) 2010 Atheros Communications Inc.
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+ *
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+ * Permission to use, copy, modify, and/or distribute this software for any
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+ * purpose with or without fee is hereby granted, provided that the above
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+ * copyright notice and this permission notice appear in all copies.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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+ */
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+
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#include "htc.h"
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/******************/
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@@ -131,3 +147,314 @@ void ath_htc_cancel_btcoex_work(struct ath9k_htc_priv *priv)
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cancel_delayed_work_sync(&priv->coex_period_work);
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cancel_delayed_work_sync(&priv->duty_cycle_work);
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}
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+
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+/*******/
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+/* LED */
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+/*******/
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+
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+static void ath9k_led_blink_work(struct work_struct *work)
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+{
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+ struct ath9k_htc_priv *priv = container_of(work, struct ath9k_htc_priv,
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+ ath9k_led_blink_work.work);
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+
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+ if (!(priv->op_flags & OP_LED_ASSOCIATED))
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+ return;
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+
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+ if ((priv->led_on_duration == ATH_LED_ON_DURATION_IDLE) ||
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+ (priv->led_off_duration == ATH_LED_OFF_DURATION_IDLE))
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+ ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 0);
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+ else
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+ ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin,
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+ (priv->op_flags & OP_LED_ON) ? 1 : 0);
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+
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+ ieee80211_queue_delayed_work(priv->hw,
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+ &priv->ath9k_led_blink_work,
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+ (priv->op_flags & OP_LED_ON) ?
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+ msecs_to_jiffies(priv->led_off_duration) :
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+ msecs_to_jiffies(priv->led_on_duration));
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+
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+ priv->led_on_duration = priv->led_on_cnt ?
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+ max((ATH_LED_ON_DURATION_IDLE - priv->led_on_cnt), 25) :
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+ ATH_LED_ON_DURATION_IDLE;
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+ priv->led_off_duration = priv->led_off_cnt ?
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+ max((ATH_LED_OFF_DURATION_IDLE - priv->led_off_cnt), 10) :
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+ ATH_LED_OFF_DURATION_IDLE;
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+ priv->led_on_cnt = priv->led_off_cnt = 0;
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+
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+ if (priv->op_flags & OP_LED_ON)
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+ priv->op_flags &= ~OP_LED_ON;
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+ else
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+ priv->op_flags |= OP_LED_ON;
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+}
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+
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+static void ath9k_led_brightness_work(struct work_struct *work)
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+{
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+ struct ath_led *led = container_of(work, struct ath_led,
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+ brightness_work.work);
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+ struct ath9k_htc_priv *priv = led->priv;
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+
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+ switch (led->brightness) {
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+ case LED_OFF:
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+ if (led->led_type == ATH_LED_ASSOC ||
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+ led->led_type == ATH_LED_RADIO) {
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+ ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin,
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+ (led->led_type == ATH_LED_RADIO));
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+ priv->op_flags &= ~OP_LED_ASSOCIATED;
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+ if (led->led_type == ATH_LED_RADIO)
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+ priv->op_flags &= ~OP_LED_ON;
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+ } else {
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+ priv->led_off_cnt++;
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+ }
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+ break;
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+ case LED_FULL:
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+ if (led->led_type == ATH_LED_ASSOC) {
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+ priv->op_flags |= OP_LED_ASSOCIATED;
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+ ieee80211_queue_delayed_work(priv->hw,
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+ &priv->ath9k_led_blink_work, 0);
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+ } else if (led->led_type == ATH_LED_RADIO) {
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+ ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 0);
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+ priv->op_flags |= OP_LED_ON;
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+ } else {
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+ priv->led_on_cnt++;
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+ }
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+ break;
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+ default:
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+ break;
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+ }
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+}
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+
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+static void ath9k_led_brightness(struct led_classdev *led_cdev,
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+ enum led_brightness brightness)
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+{
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+ struct ath_led *led = container_of(led_cdev, struct ath_led, led_cdev);
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+ struct ath9k_htc_priv *priv = led->priv;
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+
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+ led->brightness = brightness;
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+ if (!(priv->op_flags & OP_LED_DEINIT))
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+ ieee80211_queue_delayed_work(priv->hw,
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+ &led->brightness_work, 0);
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+}
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+
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+void ath9k_led_stop_brightness(struct ath9k_htc_priv *priv)
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+{
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+ cancel_delayed_work_sync(&priv->radio_led.brightness_work);
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+ cancel_delayed_work_sync(&priv->assoc_led.brightness_work);
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+ cancel_delayed_work_sync(&priv->tx_led.brightness_work);
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+ cancel_delayed_work_sync(&priv->rx_led.brightness_work);
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+}
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+
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+static int ath9k_register_led(struct ath9k_htc_priv *priv, struct ath_led *led,
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+ char *trigger)
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+{
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+ int ret;
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+
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+ led->priv = priv;
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+ led->led_cdev.name = led->name;
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+ led->led_cdev.default_trigger = trigger;
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+ led->led_cdev.brightness_set = ath9k_led_brightness;
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+
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+ ret = led_classdev_register(wiphy_dev(priv->hw->wiphy), &led->led_cdev);
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+ if (ret)
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+ ath_err(ath9k_hw_common(priv->ah),
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+ "Failed to register led:%s", led->name);
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+ else
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+ led->registered = 1;
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+
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+ INIT_DELAYED_WORK(&led->brightness_work, ath9k_led_brightness_work);
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+
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+ return ret;
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+}
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+
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+static void ath9k_unregister_led(struct ath_led *led)
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+{
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+ if (led->registered) {
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+ led_classdev_unregister(&led->led_cdev);
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+ led->registered = 0;
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+ }
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+}
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+
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+void ath9k_deinit_leds(struct ath9k_htc_priv *priv)
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+{
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+ priv->op_flags |= OP_LED_DEINIT;
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+ ath9k_unregister_led(&priv->assoc_led);
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+ priv->op_flags &= ~OP_LED_ASSOCIATED;
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+ ath9k_unregister_led(&priv->tx_led);
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+ ath9k_unregister_led(&priv->rx_led);
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+ ath9k_unregister_led(&priv->radio_led);
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+}
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+
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+void ath9k_init_leds(struct ath9k_htc_priv *priv)
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+{
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+ char *trigger;
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+ int ret;
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+
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+ if (AR_SREV_9287(priv->ah))
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+ priv->ah->led_pin = ATH_LED_PIN_9287;
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+ else if (AR_SREV_9271(priv->ah))
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+ priv->ah->led_pin = ATH_LED_PIN_9271;
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+ else if (AR_DEVID_7010(priv->ah))
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+ priv->ah->led_pin = ATH_LED_PIN_7010;
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+ else
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+ priv->ah->led_pin = ATH_LED_PIN_DEF;
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+
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+ /* Configure gpio 1 for output */
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+ ath9k_hw_cfg_output(priv->ah, priv->ah->led_pin,
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+ AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
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+ /* LED off, active low */
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+ ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 1);
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+
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+ INIT_DELAYED_WORK(&priv->ath9k_led_blink_work, ath9k_led_blink_work);
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+
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+ trigger = ieee80211_get_radio_led_name(priv->hw);
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+ snprintf(priv->radio_led.name, sizeof(priv->radio_led.name),
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+ "ath9k-%s::radio", wiphy_name(priv->hw->wiphy));
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+ ret = ath9k_register_led(priv, &priv->radio_led, trigger);
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+ priv->radio_led.led_type = ATH_LED_RADIO;
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+ if (ret)
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+ goto fail;
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+
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+ trigger = ieee80211_get_assoc_led_name(priv->hw);
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+ snprintf(priv->assoc_led.name, sizeof(priv->assoc_led.name),
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+ "ath9k-%s::assoc", wiphy_name(priv->hw->wiphy));
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+ ret = ath9k_register_led(priv, &priv->assoc_led, trigger);
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+ priv->assoc_led.led_type = ATH_LED_ASSOC;
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+ if (ret)
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+ goto fail;
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+
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+ trigger = ieee80211_get_tx_led_name(priv->hw);
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+ snprintf(priv->tx_led.name, sizeof(priv->tx_led.name),
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+ "ath9k-%s::tx", wiphy_name(priv->hw->wiphy));
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+ ret = ath9k_register_led(priv, &priv->tx_led, trigger);
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+ priv->tx_led.led_type = ATH_LED_TX;
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+ if (ret)
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+ goto fail;
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+
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+ trigger = ieee80211_get_rx_led_name(priv->hw);
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+ snprintf(priv->rx_led.name, sizeof(priv->rx_led.name),
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+ "ath9k-%s::rx", wiphy_name(priv->hw->wiphy));
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+ ret = ath9k_register_led(priv, &priv->rx_led, trigger);
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+ priv->rx_led.led_type = ATH_LED_RX;
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+ if (ret)
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+ goto fail;
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+
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+ priv->op_flags &= ~OP_LED_DEINIT;
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+
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+ return;
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+
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+fail:
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+ cancel_delayed_work_sync(&priv->ath9k_led_blink_work);
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+ ath9k_deinit_leds(priv);
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+}
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+
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+/*******************/
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+/* Rfkill */
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+/*******************/
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+
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+static bool ath_is_rfkill_set(struct ath9k_htc_priv *priv)
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+{
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+ return ath9k_hw_gpio_get(priv->ah, priv->ah->rfkill_gpio) ==
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+ priv->ah->rfkill_polarity;
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+}
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+
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+void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw)
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+{
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+ struct ath9k_htc_priv *priv = hw->priv;
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+ bool blocked = !!ath_is_rfkill_set(priv);
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+
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+ wiphy_rfkill_set_hw_state(hw->wiphy, blocked);
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+}
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+
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+void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv)
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+{
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+ if (priv->ah->caps.hw_caps & ATH9K_HW_CAP_RFSILENT)
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+ wiphy_rfkill_start_polling(priv->hw->wiphy);
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+}
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+
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+void ath9k_htc_radio_enable(struct ieee80211_hw *hw)
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+{
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+ struct ath9k_htc_priv *priv = hw->priv;
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+ struct ath_hw *ah = priv->ah;
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+ struct ath_common *common = ath9k_hw_common(ah);
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+ int ret;
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+ u8 cmd_rsp;
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+
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+ if (!ah->curchan)
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+ ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
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+
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+ /* Reset the HW */
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+ ret = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
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+ if (ret) {
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+ ath_err(common,
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+ "Unable to reset hardware; reset status %d (freq %u MHz)\n",
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+ ret, ah->curchan->channel);
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+ }
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+
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+ ath_update_txpow(priv);
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+
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+ /* Start RX */
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+ WMI_CMD(WMI_START_RECV_CMDID);
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+ ath9k_host_rx_init(priv);
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+
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+ /* Start TX */
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+ htc_start(priv->htc);
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+ spin_lock_bh(&priv->tx_lock);
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+ priv->tx_queues_stop = false;
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+ spin_unlock_bh(&priv->tx_lock);
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+ ieee80211_wake_queues(hw);
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+
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+ WMI_CMD(WMI_ENABLE_INTR_CMDID);
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+
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+ /* Enable LED */
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+ ath9k_hw_cfg_output(ah, ah->led_pin,
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+ AR_GPIO_OUTPUT_MUX_AS_OUTPUT);
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+ ath9k_hw_set_gpio(ah, ah->led_pin, 0);
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+}
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+
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+void ath9k_htc_radio_disable(struct ieee80211_hw *hw)
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+{
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+ struct ath9k_htc_priv *priv = hw->priv;
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+ struct ath_hw *ah = priv->ah;
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+ struct ath_common *common = ath9k_hw_common(ah);
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+ int ret;
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+ u8 cmd_rsp;
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+
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+ ath9k_htc_ps_wakeup(priv);
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+
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+ /* Disable LED */
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+ ath9k_hw_set_gpio(ah, ah->led_pin, 1);
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+ ath9k_hw_cfg_gpio_input(ah, ah->led_pin);
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+
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+ WMI_CMD(WMI_DISABLE_INTR_CMDID);
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+
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+ /* Stop TX */
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+ ieee80211_stop_queues(hw);
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+ htc_stop(priv->htc);
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+ WMI_CMD(WMI_DRAIN_TXQ_ALL_CMDID);
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+ skb_queue_purge(&priv->tx_queue);
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+
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+ /* Stop RX */
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+ WMI_CMD(WMI_STOP_RECV_CMDID);
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+
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+ /*
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+ * The MIB counters have to be disabled here,
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+ * since the target doesn't do it.
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+ */
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+ ath9k_hw_disable_mib_counters(ah);
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+
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+ if (!ah->curchan)
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+ ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
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+
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+ /* Reset the HW */
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+ ret = ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
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+ if (ret) {
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+ ath_err(common,
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+ "Unable to reset hardware; reset status %d (freq %u MHz)\n",
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+ ret, ah->curchan->channel);
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+ }
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+
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+ /* Disable the PHY */
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+ ath9k_hw_phy_disable(ah);
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+
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+ ath9k_htc_ps_restore(priv);
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+ ath9k_htc_setpower(priv, ATH9K_PM_FULL_SLEEP);
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+}
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Sujith Manoharan