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 /** 42 * struct rcar_du_plane_state - Driver-specific plane state 43 * @state: base DRM plane state 44 * @format: information about the pixel format used by the plane 45 * @hwindex: 0-based hardware plane index, -1 means unused 46 * @alpha: value of the plane alpha property 47 * @colorkey: value of the plane colorkey property 48 * @zpos: value of the plane zpos property 49 */ 50 struct rcar_du_plane_state { 51 struct drm_plane_state state; 52 53 const struct rcar_du_format_info *format; 54 int hwindex; 55 56 unsigned int alpha; 57 unsigned int colorkey; 58 unsigned int zpos; 59 }; 60 61 static inline struct rcar_du_plane_state * to_rcar_plane_state(struct drm_plane_state * state)62to_rcar_plane_state(struct drm_plane_state *state) 63 { 64 return container_of(state, struct rcar_du_plane_state, state); 65 } 66 67 int rcar_du_planes_init(struct rcar_du_group *rgrp); 68 69 void rcar_du_plane_setup(struct rcar_du_plane *plane); 70 71 #endif /* __RCAR_DU_PLANE_H__ */ 72