drivers/gpu/drm/tegra/plane.h

   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
  11 struct tegra_bo;
  12 struct tegra_dc;
  13
  14 struct tegra_plane {
  15         struct drm_plane base;
  16         struct tegra_dc *dc;
  17         unsigned int offset;
  18         unsigned int index;
  19 };
  20
  21 struct tegra_cursor {
  22         struct tegra_plane base;
  23
  24         struct tegra_bo *bo;
  25         unsigned int width;
  26         unsigned int height;
  27 };
  28
  29 static inline struct tegra_plane *to_tegra_plane(struct drm_plane *plane)
  30 {
  31         return container_of(plane, struct tegra_plane, base);
  32 }
  33
  34 struct tegra_plane_legacy_blending_state {
  35         bool alpha;
  36         bool top;
  37 };
  38
  39 struct 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
  57 static inline struct tegra_plane_state *
  58 to_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
  66 extern const struct drm_plane_funcs tegra_plane_funcs;
  67
  68 int tegra_plane_prepare_fb(struct drm_plane *plane,
  69                            struct drm_plane_state *state);
  70 void tegra_plane_cleanup_fb(struct drm_plane *plane,
  71                             struct drm_plane_state *state);
  72
  73 int tegra_plane_state_add(struct tegra_plane *plane,
  74                           struct drm_plane_state *state);
  75
  76 int tegra_plane_format(u32 fourcc, u32 *format, u32 *swap);
  77 bool tegra_plane_format_is_yuv(unsigned int format, bool *planar);
  78 int tegra_plane_setup_legacy_state(struct tegra_plane *tegra,
  79                                    struct tegra_plane_state *state);
  80
  81 #endif /* TEGRA_PLANE_H */