1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * vsp1_drm.h  --  R-Car VSP1 DRM/KMS Interface
4  *
5  * Copyright (C) 2015 Renesas Electronics Corporation
6  *
7  * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
8  */
9 #ifndef __VSP1_DRM_H__
10 #define __VSP1_DRM_H__
11 
12 #include <linux/mutex.h>
13 #include <linux/videodev2.h>
14 #include <linux/wait.h>
15 
16 #include <media/vsp1.h>
17 
18 #include "vsp1_pipe.h"
19 
20 /**
21  * struct vsp1_drm_pipeline - State for the API exposed to the DRM driver
22  * @pipe: the VSP1 pipeline used for display
23  * @width: output display width
24  * @height: output display height
25  * @force_brx_release: when set, release the BRx during the next reconfiguration
26  * @wait_queue: wait queue to wait for BRx release completion
27  * @uif: UIF entity if available for the pipeline
28  * @crc: CRC computation configuration
29  * @du_complete: frame completion callback for the DU driver (optional)
30  * @du_private: data to be passed to the du_complete callback
31  */
32 struct vsp1_drm_pipeline {
33 	struct vsp1_pipeline pipe;
34 
35 	unsigned int width;
36 	unsigned int height;
37 
38 	bool force_brx_release;
39 	wait_queue_head_t wait_queue;
40 
41 	struct vsp1_entity *uif;
42 	struct vsp1_du_crc_config crc;
43 
44 	/* Frame synchronisation */
45 	void (*du_complete)(void *data, unsigned int status, u32 crc);
46 	void *du_private;
47 };
48 
49 /**
50  * struct vsp1_drm - State for the API exposed to the DRM driver
51  * @pipe: the VSP1 DRM pipeline used for display
52  * @lock: protects the BRU and BRS allocation
53  * @inputs: source crop rectangle, destination compose rectangle and z-order
54  *	position for every input (indexed by RPF index)
55  */
56 struct vsp1_drm {
57 	struct vsp1_drm_pipeline pipe[VSP1_MAX_LIF];
58 	struct mutex lock;
59 
60 	struct {
61 		struct v4l2_rect crop;
62 		struct v4l2_rect compose;
63 		unsigned int zpos;
64 	} inputs[VSP1_MAX_RPF];
65 };
66 
67 static inline struct vsp1_drm_pipeline *
to_vsp1_drm_pipeline(struct vsp1_pipeline * pipe)68 to_vsp1_drm_pipeline(struct vsp1_pipeline *pipe)
69 {
70 	return container_of(pipe, struct vsp1_drm_pipeline, pipe);
71 }
72 
73 int vsp1_drm_init(struct vsp1_device *vsp1);
74 void vsp1_drm_cleanup(struct vsp1_device *vsp1);
75 
76 #endif /* __VSP1_DRM_H__ */
77