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_state {
  38         struct drm_plane_state base;
  39
  40         struct tegra_bo_tiling tiling;
  41         u32 format;
  42         u32 swap;
  43
  44         /* used for legacy blending support only */
  45         bool opaque;
  46         bool dependent[3];
  47 };
  48
  49 static inline struct tegra_plane_state *
  50 to_tegra_plane_state(struct drm_plane_state *state)
  51 {
  52         if (state)
  53                 return container_of(state, struct tegra_plane_state, base);
  54
  55         return NULL;
  56 }
  57
  58 extern const struct drm_plane_funcs tegra_plane_funcs;
  59
  60 int tegra_plane_state_add(struct tegra_plane *plane,
  61                           struct drm_plane_state *state);
  62
  63 int tegra_plane_format(u32 fourcc, u32 *format, u32 *swap);
  64 bool tegra_plane_format_is_yuv(unsigned int format, bool *planar);
  65 bool tegra_plane_format_has_alpha(unsigned int format);
  66 int tegra_plane_format_get_alpha(unsigned int opaque, unsigned int *alpha);
  67 void tegra_plane_check_dependent(struct tegra_plane *tegra,
  68                                  struct tegra_plane_state *state);
  69
  70 #endif /* TEGRA_PLANE_H */