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 to_rcar_plane(struct drm_plane * plane)36static 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 * to_rcar_du_plane_state(struct drm_plane_state * state)61to_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__ */ 71