linux-pinenote/drivers/media/platform/vsp1/vsp1.h

/*
 * vsp1.h  --  R-Car VSP1 Driver
 *
 * Copyright (C) 2013 Renesas 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 __VSP1_H__
#define __VSP1_H__

#include <linux/io.h>
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/platform_data/vsp1.h>

#include <media/media-device.h>
#include <media/v4l2-device.h>
#include <media/v4l2-subdev.h>

#include "vsp1_regs.h"

struct clk;
struct device;

struct vsp1_platform_data;
struct vsp1_lif;
struct vsp1_rwpf;
struct vsp1_uds;

#define VPS1_MAX_RPF		5
#define VPS1_MAX_UDS		3
#define VPS1_MAX_WPF		4

struct vsp1_device {
	struct device *dev;
	struct vsp1_platform_data *pdata;

	void __iomem *mmio;
	struct clk *clock;
	struct clk *rt_clock;

	struct mutex lock;
	int ref_count;

	struct vsp1_lif *lif;
	struct vsp1_rwpf *rpf[VPS1_MAX_RPF];
	struct vsp1_uds *uds[VPS1_MAX_UDS];
	struct vsp1_rwpf *wpf[VPS1_MAX_WPF];

	struct list_head entities;

	struct v4l2_device v4l2_dev;
	struct media_device media_dev;
};

struct vsp1_device *vsp1_device_get(struct vsp1_device *vsp1);
void vsp1_device_put(struct vsp1_device *vsp1);

static inline u32 vsp1_read(struct vsp1_device *vsp1, u32 reg)
{
	return ioread32(vsp1->mmio + reg);
}

static inline void vsp1_write(struct vsp1_device *vsp1, u32 reg, u32 data)
{
	iowrite32(data, vsp1->mmio + reg);
}

#endif /* __VSP1_H__ */