Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * LED Triggers for USB Activity
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright 2014 Michal Sojka <sojka@merica.cz>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/leds.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include "common.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define BLINK_DELAY 30
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) static unsigned long usb_blink_delay = BLINK_DELAY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) DEFINE_LED_TRIGGER(ledtrig_usb_gadget);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) DEFINE_LED_TRIGGER(ledtrig_usb_host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) void usb_led_activity(enum usb_led_event ev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	struct led_trigger *trig = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	switch (ev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	case USB_LED_EVENT_GADGET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 		trig = ledtrig_usb_gadget;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	case USB_LED_EVENT_HOST:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 		trig = ledtrig_usb_host;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	/* led_trigger_blink_oneshot() handles trig == NULL gracefully */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	led_trigger_blink_oneshot(trig, &usb_blink_delay, &usb_blink_delay, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) EXPORT_SYMBOL_GPL(usb_led_activity);
^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) void __init ledtrig_usb_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	led_trigger_register_simple("usb-gadget", &ledtrig_usb_gadget);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	led_trigger_register_simple("usb-host", &ledtrig_usb_host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) void __exit ledtrig_usb_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	led_trigger_unregister_simple(ledtrig_usb_gadget);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	led_trigger_unregister_simple(ledtrig_usb_host);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) }