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1/*
2 * rcar_du_vsp.h -- R-Car Display Unit VSP-Based Compositor
3 *
4 * Copyright (C) 2015 Renesas Electronics Corporation
5 *
6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#ifndef __RCAR_DU_VSP_H__
15#define __RCAR_DU_VSP_H__
16
17#include <drm/drmP.h>
18#include <drm/drm_crtc.h>
19
20struct rcar_du_format_info;
21struct rcar_du_vsp;
22
23struct rcar_du_vsp_plane {
24 struct drm_plane plane;
25 struct rcar_du_vsp *vsp;
26 unsigned int index;
27};
28
29struct rcar_du_vsp {
30 unsigned int index;
31 struct device *vsp;
32 struct rcar_du_device *dev;
33 struct rcar_du_vsp_plane *planes;
34 unsigned int num_planes;
35};
36
37static inline struct rcar_du_vsp_plane *to_rcar_vsp_plane(struct drm_plane *p)
38{
39 return container_of(p, struct rcar_du_vsp_plane, plane);
40}
41
42/**
43 * struct rcar_du_vsp_plane_state - Driver-specific plane state
44 * @state: base DRM plane state
45 * @format: information about the pixel format used by the plane
46 * @sg_tables: scatter-gather tables for the frame buffer memory
47 */
48struct rcar_du_vsp_plane_state {
49 struct drm_plane_state state;
50
51 const struct rcar_du_format_info *format;
52 struct sg_table sg_tables[3];
53};
54
55static inline struct rcar_du_vsp_plane_state *
56to_rcar_vsp_plane_state(struct drm_plane_state *state)
57{
58 return container_of(state, struct rcar_du_vsp_plane_state, state);
59}
60
61#ifdef CONFIG_DRM_RCAR_VSP
62int rcar_du_vsp_init(struct rcar_du_vsp *vsp, struct device_node *np,
63 unsigned int crtcs);
64void rcar_du_vsp_enable(struct rcar_du_crtc *crtc);
65void rcar_du_vsp_disable(struct rcar_du_crtc *crtc);
66void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc);
67void rcar_du_vsp_atomic_flush(struct rcar_du_crtc *crtc);
68#else
69static inline int rcar_du_vsp_init(struct rcar_du_vsp *vsp,
70 struct device_node *np,
71 unsigned int crtcs)
72{
73 return -ENXIO;
74}
75static inline void rcar_du_vsp_enable(struct rcar_du_crtc *crtc) { };
76static inline void rcar_du_vsp_disable(struct rcar_du_crtc *crtc) { };
77static inline void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc) { };
78static inline void rcar_du_vsp_atomic_flush(struct rcar_du_crtc *crtc) { };
79#endif
80
81#endif /* __RCAR_DU_VSP_H__ */