From patchwork Thu Apr 28 10:44:05 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sujith Manoharan X-Patchwork-Id: 739121 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p3SAg2aM009313 for ; Thu, 28 Apr 2011 10:42:02 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759341Ab1D1Klu (ORCPT ); Thu, 28 Apr 2011 06:41:50 -0400 Received: from mail-pz0-f46.google.com ([209.85.210.46]:44590 "EHLO mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758670Ab1D1Klr (ORCPT ); Thu, 28 Apr 2011 06:41:47 -0400 Received: by pzk9 with SMTP id 9so1591811pzk.19 for ; Thu, 28 Apr 2011 03:41:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:from:mime-version:content-type :content-transfer-encoding:message-id:date:to:x-mailer:cc:subject; bh=CmeqSXF7cj5m8Ddo5rJjQ6pAVX/sg3ZJNmG7iKPiAkc=; b=f2EtKA0SnACgPWSzRwsmwT+NQCOHxPBjBsmiPLAtBEYrh2rDKvkNYAfWk+p45FkDu+ 3ILaFcs+gM4HGQhnLVcsZwqSe2nltKPdx2Z4f++qg/joBZbzzS4cO1Yt42MIEqixtLMY o+SNUswaVXVi0zIYXFuLmdCahBxDfUZ6VUwj8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:mime-version:content-type:content-transfer-encoding:message-id :date:to:x-mailer:cc:subject; b=XZ/4xl+KPzv6GDCa5ItQw93P4+YA3F7BFT4kCq3IdCeTivTdRsQ13kwQ9lM5ETwBqx fV2OviS0UQNpjSsMxTkI+aWcnsOdvmjNKVNlTg+7IaulYkbS2i535zFLZE93cl3u89Xz VMNePVc4aaYSPxu2fm+tvQpzd5fK6Sj92Z3EQ= Received: by 10.143.27.24 with SMTP id e24mr1036697wfj.302.1303987302248; Thu, 28 Apr 2011 03:41:42 -0700 (PDT) Received: from atheros-test ([122.165.20.191]) by mx.google.com with ESMTPS id p40sm1690473wfc.19.2011.04.28.03.41.31 (version=TLSv1/SSLv3 cipher=OTHER); Thu, 28 Apr 2011 03:41:41 -0700 (PDT) From: Sujith MIME-Version: 1.0 Message-ID: <19897.17653.621421.380417@gargle.gargle.HOWL> Date: Thu, 28 Apr 2011 16:14:05 +0530 To: linville@tuxdriver.com X-Mailer: VM 8.1.1 under 23.3.1 (x86_64-unknown-linux-gnu) CC: linux-wireless@vger.kernel.org, ath9k-devel@venema.h4ckr.net Subject: [PATCH] ath9k_htc: Revamp LED management Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Thu, 28 Apr 2011 10:42:02 +0000 (UTC) From: Sujith Manoharan Remove all the convoluted hacks in the driver and simplify things by making use of mac80211's LED triggers. Signed-off-by: Sujith Manoharan --- drivers/net/wireless/ath/ath9k/htc.h | 65 ++++----- drivers/net/wireless/ath/ath9k/htc_drv_gpio.c | 188 ++++--------------------- drivers/net/wireless/ath/ath9k/htc_drv_init.c | 22 +++ drivers/net/wireless/ath/ath9k/htc_drv_main.c | 6 +- 4 files changed, 85 insertions(+), 196 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h index 6bb71e3..dfc7a98 100644 --- a/drivers/net/wireless/ath/ath9k/htc.h +++ b/drivers/net/wireless/ath/ath9k/htc.h @@ -385,25 +385,6 @@ static inline void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv, #define ATH_LED_PIN_9287 10 #define ATH_LED_PIN_9271 15 #define ATH_LED_PIN_7010 12 -#define ATH_LED_ON_DURATION_IDLE 350 /* in msecs */ -#define ATH_LED_OFF_DURATION_IDLE 250 /* in msecs */ - -enum ath_led_type { - ATH_LED_RADIO, - ATH_LED_ASSOC, - ATH_LED_TX, - ATH_LED_RX -}; - -struct ath_led { - struct ath9k_htc_priv *priv; - struct led_classdev led_cdev; - enum ath_led_type led_type; - struct delayed_work brightness_work; - char name[32]; - bool registered; - int brightness; -}; #define BSTUCK_THRESHOLD 10 @@ -437,14 +418,11 @@ void ath_htc_cancel_btcoex_work(struct ath9k_htc_priv *priv); #define OP_INVALID BIT(0) #define OP_SCANNING BIT(1) -#define OP_LED_ASSOCIATED BIT(2) -#define OP_LED_ON BIT(3) -#define OP_ENABLE_BEACON BIT(4) -#define OP_LED_DEINIT BIT(5) -#define OP_BT_PRIORITY_DETECTED BIT(6) -#define OP_BT_SCAN BIT(7) -#define OP_ANI_RUNNING BIT(8) -#define OP_TSF_RESET BIT(9) +#define OP_ENABLE_BEACON BIT(2) +#define OP_BT_PRIORITY_DETECTED BIT(3) +#define OP_BT_SCAN BIT(4) +#define OP_ANI_RUNNING BIT(5) +#define OP_TSF_RESET BIT(6) struct ath9k_htc_priv { struct device *dev; @@ -504,15 +482,13 @@ struct ath9k_htc_priv { bool ps_enabled; bool ps_idle; - struct ath_led radio_led; - struct ath_led assoc_led; - struct ath_led tx_led; - struct ath_led rx_led; - struct delayed_work ath9k_led_blink_work; - int led_on_duration; - int led_off_duration; - int led_on_cnt; - int led_off_cnt; +#ifdef CONFIG_MAC80211_LEDS + enum led_brightness brightness; + bool led_registered; + char led_name[32]; + struct led_classdev led_cdev; + struct work_struct led_work; +#endif int beaconq; int cabq; @@ -597,9 +573,24 @@ void ath9k_start_rfkill_poll(struct ath9k_htc_priv *priv); void ath9k_htc_rfkill_poll_state(struct ieee80211_hw *hw); void ath9k_htc_radio_enable(struct ieee80211_hw *hw); void ath9k_htc_radio_disable(struct ieee80211_hw *hw); -void ath9k_led_stop_brightness(struct ath9k_htc_priv *priv); + +#ifdef CONFIG_MAC80211_LEDS void ath9k_init_leds(struct ath9k_htc_priv *priv); void ath9k_deinit_leds(struct ath9k_htc_priv *priv); +void ath9k_led_work(struct work_struct *work); +#else +static inline void ath9k_init_leds(struct ath9k_htc_priv *priv) +{ +} + +static inline void ath9k_deinit_leds(struct ath9k_htc_priv *priv) +{ +} + +static inline void ath9k_led_work(struct work_struct *work) +{ +} +#endif int ath9k_htc_probe_device(struct htc_target *htc_handle, struct device *dev, u16 devid, char *product, u32 drv_info); diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c b/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c index d051a42..2ea60da 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_gpio.c @@ -154,140 +154,41 @@ void ath_htc_cancel_btcoex_work(struct ath9k_htc_priv *priv) /* LED */ /*******/ -static void ath9k_led_blink_work(struct work_struct *work) +#ifdef CONFIG_MAC80211_LEDS +void ath9k_led_work(struct work_struct *work) { - struct ath9k_htc_priv *priv = container_of(work, struct ath9k_htc_priv, - ath9k_led_blink_work.work); - - if (!(priv->op_flags & OP_LED_ASSOCIATED)) - return; + struct ath9k_htc_priv *priv = container_of(work, + struct ath9k_htc_priv, + led_work); - 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; -} - -static void ath9k_led_brightness_work(struct work_struct *work) -{ - 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++; - } - 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++; - } - break; - default: - break; - } + ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, + (priv->brightness == LED_OFF)); } 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; - - led->brightness = brightness; - if (!(priv->op_flags & OP_LED_DEINIT)) - ieee80211_queue_delayed_work(priv->hw, - &led->brightness_work, 0); -} + struct ath9k_htc_priv *priv = container_of(led_cdev, + struct ath9k_htc_priv, + led_cdev); -void ath9k_led_stop_brightness(struct ath9k_htc_priv *priv) -{ - 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); -} - -static int ath9k_register_led(struct ath9k_htc_priv *priv, struct ath_led *led, - char *trigger) -{ - int ret; - - 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; -} - -static void ath9k_unregister_led(struct ath_led *led) -{ - if (led->registered) { - led_classdev_unregister(&led->led_cdev); - led->registered = 0; - } + /* Not locked, but it's just a tiny green light..*/ + priv->brightness = brightness; + ieee80211_queue_work(priv->hw, &priv->led_work); } void ath9k_deinit_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); + 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_init_leds(struct ath9k_htc_priv *priv) { - char *trigger; int ret; if (AR_SREV_9287(priv->ah)) @@ -305,48 +206,21 @@ void ath9k_init_leds(struct ath9k_htc_priv *priv) /* LED off, active low */ ath9k_hw_set_gpio(priv->ah, priv->ah->led_pin, 1); - 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; -fail: - cancel_delayed_work_sync(&priv->ath9k_led_blink_work); - ath9k_deinit_leds(priv); + INIT_WORK(&priv->led_work, ath9k_led_work); + priv->led_registered = true; + + return; } +#endif /*******************/ /* Rfkill */ diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c index d2dd5a6..bfdc8a8 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c @@ -117,6 +117,21 @@ static struct ieee80211_rate ath9k_legacy_rates[] = { RATE(540, 0x0c, 0), }; +#ifdef CONFIG_MAC80211_LEDS +static const struct ieee80211_tpt_blink ath9k_htc_tpt_blink[] = { + { .throughput = 0 * 1024, .blink_time = 334 }, + { .throughput = 1 * 1024, .blink_time = 260 }, + { .throughput = 5 * 1024, .blink_time = 220 }, + { .throughput = 10 * 1024, .blink_time = 190 }, + { .throughput = 20 * 1024, .blink_time = 170 }, + { .throughput = 50 * 1024, .blink_time = 150 }, + { .throughput = 70 * 1024, .blink_time = 130 }, + { .throughput = 100 * 1024, .blink_time = 110 }, + { .throughput = 200 * 1024, .blink_time = 80 }, + { .throughput = 300 * 1024, .blink_time = 50 }, +}; +#endif + static int ath9k_htc_wait_for_target(struct ath9k_htc_priv *priv) { int time_left; @@ -863,6 +878,13 @@ static int ath9k_init_device(struct ath9k_htc_priv *priv, if (error != 0) goto err_rx; +#ifdef CONFIG_MAC80211_LEDS + /* must be initialized before ieee80211_register_hw */ + priv->led_cdev.default_trigger = ieee80211_create_tpt_led_trigger(priv->hw, + IEEE80211_TPT_LEDTRIG_FL_RADIO, ath9k_htc_tpt_blink, + ARRAY_SIZE(ath9k_htc_tpt_blink)); +#endif + /* Register with mac80211 */ error = ieee80211_register_hw(hw); if (error) diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c index e9746e8..5aa104f 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c @@ -1003,9 +1003,11 @@ static void ath9k_htc_stop(struct ieee80211_hw *hw) /* Cancel all the running timers/work .. */ cancel_work_sync(&priv->fatal_work); cancel_work_sync(&priv->ps_work); - cancel_delayed_work_sync(&priv->ath9k_led_blink_work); + +#ifdef CONFIG_MAC80211_LEDS + cancel_work_sync(&priv->led_work); +#endif ath9k_htc_stop_ani(priv); - ath9k_led_stop_brightness(priv); mutex_lock(&priv->mutex);