/*
  * Copyright (C) yajin 2008 <yajinzhou@gmail.com >
  *
  * This file is part of the virtualmips distribution.
  * See LICENSE file for terms of the license.
  *
  */

#define _GNU_SOURCE
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include<sys/types.h>
#include<sys/stat.h>
#include<string.h>

#include "vm.h"
#include "mips_memory.h"
#include "device.h"

/* RAM private data */
struct ram_data {
    struct vdevice *dev;
};

void dev_ram_reset (cpu_mips_t * cpu, struct vdevice *dev)
{
    assert (dev->host_addr != 0);
    /*reset ram */
    memset ((unsigned char *) dev->host_addr, 0x0, dev->phys_len);

}

/* Initialize a RAM zone */
int dev_ram_init (vm_instance_t * vm, char *name, m_pa_t paddr,
    m_uint32_t len)
{
    struct ram_data *d;

    /* allocate the private data structure */
    if (!(d = malloc (sizeof (*d)))) {
        fprintf (stderr, "RAM: unable to create device.\n");
        return (-1);
    }

    memset (d, 0, sizeof (*d));

    if (!(d->dev = dev_create_ram (vm, name, paddr, len))) {
        fprintf (stderr, "RAM: unable to create device.\n");
        goto err_dev_create;
    }
    d->dev->priv_data = d;
    d->dev->reset_handler = dev_ram_reset;
    return (0);

err_dev_create:
    free (d);
    return (-1);
}