drivers/gpu/drm/tegra/plane.h

   1 /*
   2  * Copyright (C) 2017 NVIDIA CORPORATION.  All rights reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  */
   8
   9 #ifndef TEGRA_PLANE_H
  10 #define TEGRA_PLANE_H 1
  11
  12 #include <drm/drm_plane.h>
  13
  14 struct tegra_bo;
  15 struct tegra_dc;
  16
  17 struct tegra_plane {
  18         struct drm_plane base;
  19         struct tegra_dc *dc;
  20         unsigned int offset;
  21         unsigned int index;
  22 };
  23
  24 struct tegra_cursor {
  25         struct tegra_plane base;
  26
  27         struct tegra_bo *bo;
  28         unsigned int width;
  29         unsigned int height;
  30 };
  31
  32 static inline struct tegra_plane *to_tegra_plane(struct drm_plane *plane)
  33 {
  34         return container_of(plane, struct tegra_plane, base);
  35 }
  36
  37 struct tegra_plane_legacy_blending_state {
  38         bool alpha;
  39         bool top;
  40 };
  41
  42 struct tegra_plane_state {
  43         struct drm_plane_state base;
  44
  45         struct tegra_bo_tiling tiling;
  46         u32 format;
  47         u32 swap;
  48
  49         bool bottom_up;
  50
  51         /* used for legacy blending support only */
  52         struct tegra_plane_legacy_blending_state blending[2];
  53         bool opaque;
  54 };
  55
  56 static inline struct tegra_plane_state *
  57 to_tegra_plane_state(struct drm_plane_state *state)
  58 {
  59         if (state)
  60                 return container_of(state, struct tegra_plane_state, base);
  61
  62         return NULL;
  63 }
  64
  65 extern const struct drm_plane_funcs tegra_plane_funcs;
  66
  67 int tegra_plane_state_add(struct tegra_plane *plane,
  68                           struct drm_plane_state *state);
  69
  70 int tegra_plane_format(u32 fourcc, u32 *format, u32 *swap);
  71 bool tegra_plane_format_is_yuv(unsigned int format, bool *planar);
  72 int tegra_plane_setup_legacy_state(struct tegra_plane *tegra,
  73                                    struct tegra_plane_state *state);
  74
  75 #endif /* TEGRA_PLANE_H */