1 /*
2  * Copyright 2015 Martin Peres
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: Martin Peres <martin.peres@free.fr>
23  */
24 
25 #ifndef __NOUVEAU_LED_H__
26 #define __NOUVEAU_LED_H__
27 
28 #include "nouveau_drv.h"
29 
30 #include <linux/leds.h>
31 
32 struct nouveau_led {
33 	struct drm_device *dev;
34 
35 	struct led_classdev led;
36 };
37 
38 static inline struct nouveau_led *
nouveau_led(struct drm_device * dev)39 nouveau_led(struct drm_device *dev)
40 {
41 	return nouveau_drm(dev)->led;
42 }
43 
44 /* nouveau_led.c */
45 #if IS_REACHABLE(CONFIG_LEDS_CLASS)
46 int  nouveau_led_init(struct drm_device *dev);
47 void nouveau_led_suspend(struct drm_device *dev);
48 void nouveau_led_resume(struct drm_device *dev);
49 void nouveau_led_fini(struct drm_device *dev);
50 #else
nouveau_led_init(struct drm_device * dev)51 static inline int  nouveau_led_init(struct drm_device *dev) { return 0; };
nouveau_led_suspend(struct drm_device * dev)52 static inline void nouveau_led_suspend(struct drm_device *dev) { };
nouveau_led_resume(struct drm_device * dev)53 static inline void nouveau_led_resume(struct drm_device *dev) { };
nouveau_led_fini(struct drm_device * dev)54 static inline void nouveau_led_fini(struct drm_device *dev) { };
55 #endif
56 
57 #endif
58