1. 根目录:
2. drivers
3. media
4. platform
5. vsp1
6. vsp1.h

/*
 * vsp1.h  --  R-Car VSP1 Driver
 *
 * 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 __VSP1_H__
#define __VSP1_H__

#include <linux/io.h>
#include <linux/list.h>
#include <linux/mutex.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_bru;
struct vsp1_hsit;
struct vsp1_lif;
struct vsp1_lut;
struct vsp1_rwpf;
struct vsp1_sru;
struct vsp1_uds;

#define VSP1_MAX_RPF		5
#define VSP1_MAX_UDS		3
#define VSP1_MAX_WPF		4

#define VSP1_HAS_LIF		(1 << 0)
#define VSP1_HAS_LUT		(1 << 1)
#define VSP1_HAS_SRU		(1 << 2)

struct vsp1_platform_data {
	unsigned int features;
	unsigned int rpf_count;
	unsigned int uds_count;
	unsigned int wpf_count;
};

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

	void __iomem *mmio;
	struct clk *clock;

	struct mutex lock;
	int ref_count;

	struct vsp1_bru *bru;
	struct vsp1_hsit *hsi;
	struct vsp1_hsit *hst;
	struct vsp1_lif *lif;
	struct vsp1_lut *lut;
	struct vsp1_rwpf *rpf[VSP1_MAX_RPF];
	struct vsp1_sru *sru;
	struct vsp1_uds *uds[VSP1_MAX_UDS];
	struct vsp1_rwpf *wpf[VSP1_MAX_WPF];

	struct list_head entities;

	struct v4l2_device v4l2_dev;
	struct media_device media_dev;
};

int 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__ */