15917112cSSimon Glass /* 25917112cSSimon Glass * Copyright (c) 2015 Google, Inc 35917112cSSimon Glass * Written by Simon Glass <sjg@chromium.org> 45917112cSSimon Glass * 55917112cSSimon Glass * SPDX-License-Identifier: GPL-2.0+ 65917112cSSimon Glass */ 75917112cSSimon Glass 85917112cSSimon Glass #ifndef __LED_H 95917112cSSimon Glass #define __LED_H 105917112cSSimon Glass 115917112cSSimon Glass /** 125917112cSSimon Glass * struct led_uclass_plat - Platform data the uclass stores about each device 135917112cSSimon Glass * 145917112cSSimon Glass * @label: LED label 155917112cSSimon Glass */ 165917112cSSimon Glass struct led_uclass_plat { 175917112cSSimon Glass const char *label; 185917112cSSimon Glass }; 195917112cSSimon Glass 205917112cSSimon Glass struct led_ops { 215917112cSSimon Glass /** 225917112cSSimon Glass * set_on() - set the state of an LED 235917112cSSimon Glass * 245917112cSSimon Glass * @dev: LED device to change 255917112cSSimon Glass * @on: 1 to turn the LED on, 0 to turn it off 265917112cSSimon Glass * @return 0 if OK, -ve on error 275917112cSSimon Glass */ 285917112cSSimon Glass int (*set_on)(struct udevice *dev, int on); 295917112cSSimon Glass }; 305917112cSSimon Glass 315917112cSSimon Glass #define led_get_ops(dev) ((struct led_ops *)(dev)->driver->ops) 325917112cSSimon Glass 335917112cSSimon Glass /** 345917112cSSimon Glass * led_get_by_label() - Find an LED device by label 355917112cSSimon Glass * 365917112cSSimon Glass * @label: LED label to look up 375917112cSSimon Glass * @devp: Returns the associated device, if found 38*fb8a5ffcSSimon Glass * @return 0 if found, -ENODEV if not found, other -ve on error 395917112cSSimon Glass */ 405917112cSSimon Glass int led_get_by_label(const char *label, struct udevice **devp); 415917112cSSimon Glass 425917112cSSimon Glass /** 435917112cSSimon Glass * led_set_on() - set the state of an LED 445917112cSSimon Glass * 455917112cSSimon Glass * @dev: LED device to change 465917112cSSimon Glass * @on: 1 to turn the LED on, 0 to turn it off 475917112cSSimon Glass * @return 0 if OK, -ve on error 485917112cSSimon Glass */ 495917112cSSimon Glass int led_set_on(struct udevice *dev, int on); 505917112cSSimon Glass 515917112cSSimon Glass #endif 52