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
20 struct rcar_du_format_info;
21 struct rcar_du_vsp;
22
23 struct rcar_du_vsp_plane {
24 struct drm_plane plane;
25 struct rcar_du_vsp *vsp;
26 unsigned int index;
27 };
28
29 struct 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
to_rcar_vsp_plane(struct drm_plane * p)37 static 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 */
48 struct 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
55 static inline struct rcar_du_vsp_plane_state *
to_rcar_vsp_plane_state(struct drm_plane_state * state)56 to_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
62 int rcar_du_vsp_init(struct rcar_du_vsp *vsp, struct device_node *np,
63 unsigned int crtcs);
64 void rcar_du_vsp_enable(struct rcar_du_crtc *crtc);
65 void rcar_du_vsp_disable(struct rcar_du_crtc *crtc);
66 void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc);
67 void rcar_du_vsp_atomic_flush(struct rcar_du_crtc *crtc);
68 #else
rcar_du_vsp_init(struct rcar_du_vsp * vsp,struct device_node * np,unsigned int crtcs)69 static 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 }
rcar_du_vsp_enable(struct rcar_du_crtc * crtc)75 static inline void rcar_du_vsp_enable(struct rcar_du_crtc *crtc) { };
rcar_du_vsp_disable(struct rcar_du_crtc * crtc)76 static inline void rcar_du_vsp_disable(struct rcar_du_crtc *crtc) { };
rcar_du_vsp_atomic_begin(struct rcar_du_crtc * crtc)77 static inline void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc) { };
rcar_du_vsp_atomic_flush(struct rcar_du_crtc * crtc)78 static inline void rcar_du_vsp_atomic_flush(struct rcar_du_crtc *crtc) { };
79 #endif
80
81 #endif /* __RCAR_DU_VSP_H__ */
82