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/*
* rcar_du_plane.h -- R-Car Display Unit Planes
*
* Copyright (C) 2013-2014 Renesas Electronics Corporation
*
* Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef __RCAR_DU_PLANE_H__
#define __RCAR_DU_PLANE_H__
#include <linux/mutex.h>
#include <drm/drmP.h>
#include <drm/drm_crtc.h>
struct rcar_du_format_info;
struct rcar_du_group;
/* The RCAR DU has 8 hardware planes, shared between KMS planes and CRTCs. As
* using KMS planes requires at least one of the CRTCs being enabled, no more
* than 7 KMS planes can be available. We thus create 7 KMS planes and
* 9 software planes (one for each KMS planes and one for each CRTC).
*/
#define RCAR_DU_NUM_KMS_PLANES 7
#define RCAR_DU_NUM_HW_PLANES 8
#define RCAR_DU_NUM_SW_PLANES 9
struct rcar_du_plane {
struct rcar_du_group *group;
struct drm_crtc *crtc;
bool enabled;
int hwindex; /* 0-based, -1 means unused */
unsigned int alpha;
unsigned int colorkey;
unsigned int zpos;
const struct rcar_du_format_info *format;
unsigned long dma[2];
unsigned int pitch;
unsigned int width;
unsigned int height;
unsigned int src_x;
unsigned int src_y;
unsigned int dst_x;
unsigned int dst_y;
};
struct rcar_du_planes {
struct rcar_du_plane planes[RCAR_DU_NUM_SW_PLANES];
unsigned int free;
struct mutex lock;
struct drm_property *alpha;
struct drm_property *colorkey;
struct drm_property *zpos;
};
int rcar_du_planes_init(struct rcar_du_group *rgrp);
int rcar_du_planes_register(struct rcar_du_group *rgrp);
void rcar_du_plane_setup(struct rcar_du_plane *plane);
void rcar_du_plane_update_base(struct rcar_du_plane *plane);
void rcar_du_plane_compute_base(struct rcar_du_plane *plane,
struct drm_framebuffer *fb);
int rcar_du_plane_reserve(struct rcar_du_plane *plane,
const struct rcar_du_format_info *format);
void rcar_du_plane_release(struct rcar_du_plane *plane);
#endif /* __RCAR_DU_PLANE_H__ */
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