^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright 2015, Heiner Kallweit <hkallweit1@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <net/bluetooth/bluetooth.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <net/bluetooth/hci_core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include "leds.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) DEFINE_LED_TRIGGER(bt_power_led_trigger);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) struct hci_basic_led_trigger {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) struct led_trigger led_trigger;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) struct hci_dev *hdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define to_hci_basic_led_trigger(arg) container_of(arg, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) struct hci_basic_led_trigger, led_trigger)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) void hci_leds_update_powered(struct hci_dev *hdev, bool enabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) if (hdev->power_led)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) led_trigger_event(hdev->power_led,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) enabled ? LED_FULL : LED_OFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) if (!enabled) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) struct hci_dev *d;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) read_lock(&hci_dev_list_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) list_for_each_entry(d, &hci_dev_list, list) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) if (test_bit(HCI_UP, &d->flags))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) enabled = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) read_unlock(&hci_dev_list_lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) led_trigger_event(bt_power_led_trigger, enabled ? LED_FULL : LED_OFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) static int power_activate(struct led_classdev *led_cdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) struct hci_basic_led_trigger *htrig;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) bool powered;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) htrig = to_hci_basic_led_trigger(led_cdev->trigger);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) powered = test_bit(HCI_UP, &htrig->hdev->flags);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) led_trigger_event(led_cdev->trigger, powered ? LED_FULL : LED_OFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) static struct led_trigger *led_allocate_basic(struct hci_dev *hdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) int (*activate)(struct led_classdev *led_cdev),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) const char *name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct hci_basic_led_trigger *htrig;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) htrig = devm_kzalloc(&hdev->dev, sizeof(*htrig), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) if (!htrig)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) htrig->hdev = hdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) htrig->led_trigger.activate = activate;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) htrig->led_trigger.name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) "%s-%s", hdev->name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) if (!htrig->led_trigger.name)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) goto err_alloc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) if (devm_led_trigger_register(&hdev->dev, &htrig->led_trigger))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) goto err_register;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) return &htrig->led_trigger;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) err_register:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) devm_kfree(&hdev->dev, (void *)htrig->led_trigger.name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) err_alloc:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) devm_kfree(&hdev->dev, htrig);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) void hci_leds_init(struct hci_dev *hdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) /* initialize power_led */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) hdev->power_led = led_allocate_basic(hdev, power_activate, "power");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) void bt_leds_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) led_trigger_register_simple("bluetooth-power", &bt_power_led_trigger);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) void bt_leds_cleanup(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) led_trigger_unregister_simple(bt_power_led_trigger);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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