1/*
2 * rcar_du_group.c  --  R-Car Display Unit Planes and CRTCs Group
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_GROUP_H__
15#define __RCAR_DU_GROUP_H__
16
17#include <linux/mutex.h>
18
19#include "rcar_du_plane.h"
20
21struct rcar_du_device;
22
23/*
24 * struct rcar_du_group - CRTCs and planes group
25 * @dev: the DU device
26 * @mmio_offset: registers offset in the device memory map
27 * @index: group index
28 * @use_count: number of users of the group (rcar_du_group_(get|put))
29 * @used_crtcs: number of CRTCs currently in use
30 * @lock: protects the DPTSR register
31 * @planes: planes handled by the group
32 */
33struct rcar_du_group {
34	struct rcar_du_device *dev;
35	unsigned int mmio_offset;
36	unsigned int index;
37
38	unsigned int use_count;
39	unsigned int used_crtcs;
40
41	struct mutex lock;
42
43	struct rcar_du_planes planes;
44};
45
46u32 rcar_du_group_read(struct rcar_du_group *rgrp, u32 reg);
47void rcar_du_group_write(struct rcar_du_group *rgrp, u32 reg, u32 data);
48
49int rcar_du_group_get(struct rcar_du_group *rgrp);
50void rcar_du_group_put(struct rcar_du_group *rgrp);
51void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start);
52void rcar_du_group_restart(struct rcar_du_group *rgrp);
53int rcar_du_group_set_routing(struct rcar_du_group *rgrp);
54
55#endif /* __RCAR_DU_GROUP_H__ */
56