drivers/gpu/drm/rcar-du/rcar_du_plane.h

   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
  20 struct rcar_du_format_info;
  21 struct 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
  31 struct rcar_du_plane {
  32         struct drm_plane plane;
  33         struct rcar_du_group *group;
  34 };
  35
  36 static 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
  41 struct 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
  49 struct 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
  60 static inline struct rcar_du_plane_state *
  61 to_rcar_du_plane_state(struct drm_plane_state *state)
  62 {
  63         return container_of(state, struct rcar_du_plane_state, state);
  64 }
  65
  66 int rcar_du_planes_init(struct rcar_du_group *rgrp);
  67
  68 void rcar_du_plane_setup(struct rcar_du_plane *plane);
  69
  70 #endif /* __RCAR_DU_PLANE_H__ */