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      1 /*	$NetBSD: nouveau_led.h,v 1.3 2021/12/19 10:50:13 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2015 Martin Peres
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included in
     14  * all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     22  * OTHER DEALINGS IN THE SOFTWARE.
     23  *
     24  * Authors: Martin Peres <martin.peres (at) free.fr>
     25  */
     26 
     27 #ifndef __NOUVEAU_LED_H__
     28 #define __NOUVEAU_LED_H__
     29 
     30 #include "nouveau_drv.h"
     31 
     32 struct led_classdev;
     33 
     34 struct nouveau_led {
     35 	struct drm_device *dev;
     36 
     37 #if IS_REACHABLE(CONFIG_LEDS_CLASS)
     38 	struct led_classdev led;
     39 #endif
     40 };
     41 
     42 static inline struct nouveau_led *
     43 nouveau_led(struct drm_device *dev)
     44 {
     45 	return nouveau_drm(dev)->led;
     46 }
     47 
     48 /* nouveau_led.c */
     49 #if IS_REACHABLE(CONFIG_LEDS_CLASS)
     50 int  nouveau_led_init(struct drm_device *dev);
     51 void nouveau_led_suspend(struct drm_device *dev);
     52 void nouveau_led_resume(struct drm_device *dev);
     53 void nouveau_led_fini(struct drm_device *dev);
     54 #else
     55 static inline int  nouveau_led_init(struct drm_device *dev) { return 0; };
     56 static inline void nouveau_led_suspend(struct drm_device *dev) { };
     57 static inline void nouveau_led_resume(struct drm_device *dev) { };
     58 static inline void nouveau_led_fini(struct drm_device *dev) { };
     59 #endif
     60 
     61 #endif
     62