1/*
2 * rcar_du_plane.h  --  R-Car Display Unit Planes
3 *
4 * Copyright (C) 2013-2014 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_PLANE_H__
15#define __RCAR_DU_PLANE_H__
16
17#include <drm/drmP.h>
18#include <drm/drm_crtc.h>
19
20struct rcar_du_format_info;
21struct rcar_du_group;
22
23/* The RCAR DU has 8 hardware planes, shared between primary and overlay planes.
24 * As using overlay planes requires at least one of the CRTCs being enabled, no
25 * more than 7 overlay planes can be available. We thus create 1 primary plane
26 * per CRTC and 7 overlay planes, for a total of up to 9 KMS planes.
27 */
28#define RCAR_DU_NUM_KMS_PLANES		9
29#define RCAR_DU_NUM_HW_PLANES		8
30
31struct rcar_du_plane {
32	struct drm_plane plane;
33	struct rcar_du_group *group;
34};
35
36static inline struct rcar_du_plane *to_rcar_plane(struct drm_plane *plane)
37{
38	return container_of(plane, struct rcar_du_plane, plane);
39}
40
41struct rcar_du_planes {
42	struct rcar_du_plane planes[RCAR_DU_NUM_KMS_PLANES];
43
44	struct drm_property *alpha;
45	struct drm_property *colorkey;
46	struct drm_property *zpos;
47};
48
49struct rcar_du_plane_state {
50	struct drm_plane_state state;
51
52	const struct rcar_du_format_info *format;
53	int hwindex;		/* 0-based, -1 means unused */
54
55	unsigned int alpha;
56	unsigned int colorkey;
57	unsigned int zpos;
58};
59
60static inline struct rcar_du_plane_state *
61to_rcar_du_plane_state(struct drm_plane_state *state)
62{
63	return container_of(state, struct rcar_du_plane_state, state);
64}
65
66int rcar_du_planes_init(struct rcar_du_group *rgrp);
67
68void rcar_du_plane_setup(struct rcar_du_plane *plane);
69
70#endif /* __RCAR_DU_PLANE_H__ */
71