blob: ded7c88eaccceb1b2bd74a7fff77a5001697f6eb [file] [log] [blame]
* Copyright 2015, Heiner Kallweit <>
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
#include "leds.h"
struct hci_basic_led_trigger {
struct led_trigger led_trigger;
struct hci_dev *hdev;
#define to_hci_basic_led_trigger(arg) container_of(arg, \
struct hci_basic_led_trigger, led_trigger)
void hci_leds_update_powered(struct hci_dev *hdev, bool enabled)
if (hdev->power_led)
enabled ? LED_FULL : LED_OFF);
static void power_activate(struct led_classdev *led_cdev)
struct hci_basic_led_trigger *htrig;
bool powered;
htrig = to_hci_basic_led_trigger(led_cdev->trigger);
powered = test_bit(HCI_UP, &htrig->hdev->flags);
led_trigger_event(led_cdev->trigger, powered ? LED_FULL : LED_OFF);
static struct led_trigger *led_allocate_basic(struct hci_dev *hdev,
void (*activate)(struct led_classdev *led_cdev),
const char *name)
struct hci_basic_led_trigger *htrig;
htrig = devm_kzalloc(&hdev->dev, sizeof(*htrig), GFP_KERNEL);
if (!htrig)
return NULL;
htrig->hdev = hdev;
htrig->led_trigger.activate = activate;
htrig-> = devm_kasprintf(&hdev->dev, GFP_KERNEL,
"%s-%s", hdev->name,
if (!htrig->
goto err_alloc;
if (led_trigger_register(&htrig->led_trigger))
goto err_register;
return &htrig->led_trigger;
devm_kfree(&hdev->dev, (void *)htrig->;
devm_kfree(&hdev->dev, htrig);
return NULL;
void hci_leds_init(struct hci_dev *hdev)
/* initialize power_led */
hdev->power_led = led_allocate_basic(hdev, power_activate, "power");
void hci_leds_exit(struct hci_dev *hdev)
if (hdev->power_led)