/*
 * Copyright 2013, Ingo Weinhold, ingo_weinhold@gmx.de.
 * Distributed under the terms of the MIT License.
 */
#ifndef _PRIVATE_FILE_SYSTEMS_RAM_DISK_RAM_DISK_H
#define _PRIVATE_FILE_SYSTEMS_RAM_DISK_RAM_DISK_H


#include <Drivers.h>
#include <StorageDefs.h>


#define RAM_DISK_CONTROL_DEVICE_NAME    "disk/virtual/ram/control"
#define RAM_DISK_RAW_DEVICE_BASE_NAME   "disk/virtual/ram"


enum {
        RAM_DISK_IOCTL_REGISTER         = B_DEVICE_OP_CODES_END + 1,
        RAM_DISK_IOCTL_UNREGISTER,
        RAM_DISK_IOCTL_FLUSH,
        RAM_DISK_IOCTL_INFO
};


struct ram_disk_ioctl_register {
        uint64  size;
        char    path[B_PATH_NAME_LENGTH];

        // return value
        int32   id;
};


struct ram_disk_ioctl_unregister {
        int32   id;
};


struct ram_disk_ioctl_info {
        // return values
        int32   id;
        uint64  size;
        char    path[B_PATH_NAME_LENGTH];
};


#endif  // _PRIVATE_FILE_SYSTEMS_RAM_DISK_RAM_DISK_H