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/*
* rcar_du_group.c -- R-Car Display Unit Planes and CRTCs Group
*
* 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_GROUP_H__
#define __RCAR_DU_GROUP_H__
#include <linux/mutex.h>
#include "rcar_du_plane.h"
struct rcar_du_device;
/*
* struct rcar_du_group - CRTCs and planes group
* @dev: the DU device
* @mmio_offset: registers offset in the device memory map
* @index: group index
* @num_crtcs: number of CRTCs in this group (1 or 2)
* @use_count: number of users of the group (rcar_du_group_(get|put))
* @used_crtcs: number of CRTCs currently in use
* @lock: protects the dptsr_planes field and the DPTSR register
* @dptsr_planes: bitmask of planes driven by dot-clock and timing generator 1
* @num_planes: number of planes in the group
* @planes: planes handled by the group
* @need_restart: the group needs to be restarted due to a configuration change
*/
struct rcar_du_group {
struct rcar_du_device *dev;
unsigned int mmio_offset;
unsigned int index;
unsigned int num_crtcs;
unsigned int use_count;
unsigned int used_crtcs;
struct mutex lock;
unsigned int dptsr_planes;
unsigned int num_planes;
struct rcar_du_plane planes[RCAR_DU_NUM_KMS_PLANES];
bool need_restart;
};
u32 rcar_du_group_read(struct rcar_du_group *rgrp, u32 reg);
void rcar_du_group_write(struct rcar_du_group *rgrp, u32 reg, u32 data);
int rcar_du_group_get(struct rcar_du_group *rgrp);
void rcar_du_group_put(struct rcar_du_group *rgrp);
void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start);
void rcar_du_group_restart(struct rcar_du_group *rgrp);
int rcar_du_group_set_routing(struct rcar_du_group *rgrp);
int rcar_du_set_dpad0_vsp1_routing(struct rcar_du_device *rcdu);
#endif /* __RCAR_DU_GROUP_H__ */
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