1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright (C) 2017 NVIDIA CORPORATION.  All rights reserved.
 4 */
 5
 6#ifndef TEGRA_PLANE_H
 7#define TEGRA_PLANE_H 1
 8
 9#include <drm/drm_plane.h>
10
11struct tegra_bo;
12struct tegra_dc;
13
14struct tegra_plane {
15	struct drm_plane base;
16	struct tegra_dc *dc;
17	unsigned int offset;
18	unsigned int index;
19};
20
21struct tegra_cursor {
22	struct tegra_plane base;
23
24	struct tegra_bo *bo;
25	unsigned int width;
26	unsigned int height;
27};
28
29static inline struct tegra_plane *to_tegra_plane(struct drm_plane *plane)
30{
31	return container_of(plane, struct tegra_plane, base);
32}
33
34struct tegra_plane_legacy_blending_state {
35	bool alpha;
36	bool top;
37};
38
39struct tegra_plane_state {
40	struct drm_plane_state base;
41
42	struct sg_table *sgt[3];
43	dma_addr_t iova[3];
44
45	struct tegra_bo_tiling tiling;
46	u32 format;
47	u32 swap;
48
49	bool reflect_x;
50	bool reflect_y;
51
52	/* used for legacy blending support only */
53	struct tegra_plane_legacy_blending_state blending[2];
54	bool opaque;
55};
56
57static inline struct tegra_plane_state *
58to_tegra_plane_state(struct drm_plane_state *state)
59{
60	if (state)
61		return container_of(state, struct tegra_plane_state, base);
62
63	return NULL;
64}
65
66extern const struct drm_plane_funcs tegra_plane_funcs;
67
68int tegra_plane_prepare_fb(struct drm_plane *plane,
69			   struct drm_plane_state *state);
70void tegra_plane_cleanup_fb(struct drm_plane *plane,
71			    struct drm_plane_state *state);
72
73int tegra_plane_state_add(struct tegra_plane *plane,
74			  struct drm_plane_state *state);
75
76int tegra_plane_format(u32 fourcc, u32 *format, u32 *swap);
77bool tegra_plane_format_is_indexed(unsigned int format);
78bool tegra_plane_format_is_yuv(unsigned int format, bool *planar, unsigned int *bpc);
79int tegra_plane_setup_legacy_state(struct tegra_plane *tegra,
80				   struct tegra_plane_state *state);
81
82#endif /* TEGRA_PLANE_H */