/*
 * Copyright (c) XMEDIA. All rights reserved.
 */
#ifndef _LINUX_MEDIA_DEVICE_H_
#define _LINUX_MEDIA_DEVICE_H_

#include <linux/module.h>
#include <linux/major.h>
#include <linux/device.h>
#include <linux/devfreq.h>
#include "osal_list.h"
#include "osal_devfreq.h"

#define MEDIA_DEVICE_MAJOR     218
#define MEDIA_DYNAMIC_MINOR    255

struct media_device;

struct media_ops {
    // pm methos
    int (*pm_prepare)(struct media_device *);
    void (*pm_complete)(struct media_device *);

    int (*pm_suspend)(struct media_device *);
    int (*pm_resume)(struct media_device *);

    int (*pm_freeze)(struct media_device *);
    int (*pm_thaw)(struct media_device *);
    int (*pm_poweroff)(struct media_device *);
    int (*pm_restore)(struct media_device *);

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

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

    int (*pm_freeze_noirq)(struct media_device *);
    int (*pm_thaw_noirq)(struct media_device *);
    int (*pm_poweroff_noirq)(struct media_device *);
    int (*pm_restore_noirq)(struct media_device *);

    /* devfreq */
    int (*devfreq_target)(struct media_device *, unsigned long *, unsigned int);
    int (*devfreq_get_dev_status)(struct media_device *, struct osal_devfreq_dev_status *);
    int (*devfreq_get_cur_freq)(struct media_device *, unsigned long *);
    void (*devfreq_exit)(struct media_device *);
};

#define MEDIA_MAX_DEV_NAME_LEN 32

struct media_driver {
    struct device_driver driver;
    struct media_ops *ops;
    char name[1];
};

#define to_media_driver(drv) \
    container_of((drv), struct media_driver, driver)

struct media_device {
    struct osal_list_head list;

    char devfs_name[MEDIA_MAX_DEV_NAME_LEN];

    unsigned int minor;

    struct device device;

    struct module *owner;

    const struct file_operations *fops;

    struct media_ops *drvops;

    /* for internal use */
    struct media_driver *driver;

    struct devfreq *devfreq;
    struct devfreq_dev_profile profile;
};

#define to_media_device(dev) \
    container_of((dev), struct media_device, device)

int media_devfreq_register(struct media_device *media, osal_devfreq_para_t *devfreq_para);
void media_devfreq_unregister(struct media_device *media);

int media_register(struct media_device *pdev);

int media_unregister(struct media_device *pdev);

#define MODULE_ALIAS_MEDIA(minor) \
    MODULE_ALIAS("media-char-major-" __stringify(MEDIA_DEVICE_MAJOR) "-" __stringify(minor))

#endif /* _LINUX_MEDIA_DEVICE_H_ */