From e64c97b53bc6727aa4385535166aaa047281e02d Mon Sep 17 00:00:00 2001 From: Marcel Holtmann Date: Thu, 21 Jul 2016 14:12:41 +0200 Subject: Bluetooth: Add combined LED trigger for controller power Instead of just having a LED trigger for power on a specific controller, this adds the LED trigger "bluetooth-power" that combines the power states of all controllers into a single trigger. This simplifies the trigger selection and also supports multiple controllers per host system via a single LED. Signed-off-by: Marcel Holtmann Signed-off-by: Johan Hedberg --- net/bluetooth/leds.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'net/bluetooth/leds.c') diff --git a/net/bluetooth/leds.c b/net/bluetooth/leds.c index 8319c8440c89..cb670b5594eb 100644 --- a/net/bluetooth/leds.c +++ b/net/bluetooth/leds.c @@ -11,6 +11,8 @@ #include "leds.h" +DEFINE_LED_TRIGGER(bt_power_led_trigger); + struct hci_basic_led_trigger { struct led_trigger led_trigger; struct hci_dev *hdev; @@ -24,6 +26,21 @@ void hci_leds_update_powered(struct hci_dev *hdev, bool enabled) if (hdev->power_led) led_trigger_event(hdev->power_led, enabled ? LED_FULL : LED_OFF); + + if (!enabled) { + struct hci_dev *d; + + read_lock(&hci_dev_list_lock); + + list_for_each_entry(d, &hci_dev_list, list) { + if (test_bit(HCI_UP, &d->flags)) + enabled = true; + } + + read_unlock(&hci_dev_list_lock); + } + + led_trigger_event(bt_power_led_trigger, enabled ? LED_FULL : LED_OFF); } static void power_activate(struct led_classdev *led_cdev) @@ -72,3 +89,13 @@ void hci_leds_init(struct hci_dev *hdev) /* initialize power_led */ hdev->power_led = led_allocate_basic(hdev, power_activate, "power"); } + +void bt_leds_init(void) +{ + led_trigger_register_simple("bluetooth-power", &bt_power_led_trigger); +} + +void bt_leds_cleanup(void) +{ + led_trigger_unregister_simple(bt_power_led_trigger); +} -- cgit