#ifndef _LINUX_HIMEDIA_DEVICE_H_
#define _LINUX_HIMEDIA_DEVICE_H_

#include <linux/module.h>
#include <linux/major.h>
#include <linux/device.h>

#define HIMEDIA_DEVICE_MAJOR  218
#define HIMEDIA_DYNAMIC_MINOR 255

struct himedia_device;

struct himedia_ops {
    //pm methos
    int (*pm_prepare)(struct himedia_device *);
    void (*pm_complete)(struct himedia_device *);
    
    int (*pm_suspend)(struct himedia_device *);
    int (*pm_resume)(struct himedia_device *);
    
    int (*pm_freeze)(struct himedia_device *);
    int (*pm_thaw)(struct himedia_device *);
    int (*pm_poweroff)(struct himedia_device *);
    int (*pm_restore)(struct himedia_device *);

    int (*pm_suspend_late)(struct himedia_device *);
    int (*pm_resume_early)(struct himedia_device *);
    int (*pm_freeze_late)(struct himedia_device *);
    int (*pm_thaw_early)(struct himedia_device *);
    int (*pm_poweroff_late)(struct himedia_device *);
    int (*pm_restore_early)(struct himedia_device *);

    int (*pm_suspend_noirq)(struct himedia_device *);
    int (*pm_resume_noirq)(struct himedia_device *);

    int (*pm_freeze_noirq)(struct himedia_device *);
    int (*pm_thaw_noirq)(struct himedia_device *);
    int (*pm_poweroff_noirq)(struct himedia_device *);
    int (*pm_restore_noirq)(struct himedia_device *);
};

struct himedia_driver{
    struct device_driver driver;
    struct himedia_ops *ops;
	char name[1];
};

#define to_himedia_driver(drv)	\
    container_of((drv), struct himedia_driver, driver)

struct himedia_device  {
	struct list_head list;

#define MAX_LEN 32	
    char devfs_name[MAX_LEN];
    
	int minor;

    struct device device;

	struct module *owner;

	const struct file_operations *fops;
	
	struct himedia_ops *drvops;

    /*for internal use*/
	struct himedia_driver *driver;
};


#define to_himedia_device(dev) \
    container_of((dev), struct himedia_device, device)

int himedia_register(struct himedia_device *pdev);

int himedia_unregister(struct himedia_device *pdev);

#define MODULE_ALIAS_HIMEDIA(minor) \
	MODULE_ALIAS("himedia-char-major-" __stringify(HIMEDIA_DEVICE_MAJOR) \
	"-" __stringify(minor))

#endif /*_LINUX_HIMEDIA_DEVICE_H_*/