103 lines
2.4 KiB
C
103 lines
2.4 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2008 Frank Gevaerts
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <stdbool.h>
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#include <string.h>
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#include "storage.h"
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#define SECTOR_SIZE 512
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#define NUM_SECTORS 16384
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unsigned char ramdisk[SECTOR_SIZE * NUM_SECTORS];
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long last_disk_activity = -1;
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int ramdisk_read_sectors(IF_MV2(int drive,)
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unsigned long start,
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int count,
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void* buf)
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{
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if(start+count>=NUM_SECTORS)
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{
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return -1;
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}
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memcpy(buf,&ramdisk[start*SECTOR_SIZE],count*SECTOR_SIZE);
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return 0;
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}
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int ramdisk_write_sectors(IF_MV2(int drive,)
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unsigned long start,
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int count,
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const void* buf)
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{
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if(start+count>=NUM_SECTORS)
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{
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return -1;
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}
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memcpy(&ramdisk[start*SECTOR_SIZE],buf,count*SECTOR_SIZE);
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return 0;
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}
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int ramdisk_init(void)
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{
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return 0;
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}
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long ramdisk_last_disk_activity(void)
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{
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return last_disk_activity;
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}
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void ramdisk_sleep(void)
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{
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}
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void ramdisk_spin(void)
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{
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}
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void ramdisk_sleepnow(void)
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{
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}
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void ramdisk_spindown(int seconds)
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{
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(void)seconds;
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}
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#ifdef STORAGE_GET_INFO
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void ramdisk_get_info(IF_MV2(int drive,) struct storage_info *info)
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{
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/* firmware version */
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info->revision="0.00";
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/* vendor field, need better name? */
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info->vendor="Rockbox";
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/* model field, need better name? */
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info->product="Ramdisk";
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/* blocks count */
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info->num_sectors=NUM_SECTORS;
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info->sector_size=SECTOR_SIZE;
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}
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#endif
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