drm/nouveau/nouveau_led.h

0001 /*
0002  * Copyright 2015 Martin Peres
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  *
0022  * Authors: Martin Peres <martin.peres@free.fr>
0023  */
0024
0025 #ifndef __NOUVEAU_LED_H__
0026 #define __NOUVEAU_LED_H__
0027
0028 #include "nouveau_drv.h"
0029
0030 struct led_classdev;
0031
0032 struct nouveau_led {
0033     struct drm_device *dev;
0034
0035     struct led_classdev led;
0036 };
0037
0038 static inline struct nouveau_led *
0039 nouveau_led(struct drm_device *dev)
0040 {
0041     return nouveau_drm(dev)->led;
0042 }
0043
0044 /* nouveau_led.c */
0045 #if IS_REACHABLE(CONFIG_LEDS_CLASS)
0046 int  nouveau_led_init(struct drm_device *dev);
0047 void nouveau_led_suspend(struct drm_device *dev);
0048 void nouveau_led_resume(struct drm_device *dev);
0049 void nouveau_led_fini(struct drm_device *dev);
0050 #else
0051 static inline int  nouveau_led_init(struct drm_device *dev) { return 0; };
0052 static inline void nouveau_led_suspend(struct drm_device *dev) { };
0053 static inline void nouveau_led_resume(struct drm_device *dev) { };
0054 static inline void nouveau_led_fini(struct drm_device *dev) { };
0055 #endif
0056
0057 #endif