blob: 129c4b36a9b2081ec7fd4d590d7722e8f9099626 [file] [log] [blame]
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id:$
*
* Copyright (C) 2012 by Andrew Ryabinin
*
* major portion of code is taken from firmware/test/fat/ata-sim.c
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include "debug.h"
#include "dir.h"
#define BLOCK_SIZE 512
static FILE* file;
extern char *img_filename;
void mutex_init(struct mutex* l) {}
void mutex_lock(struct mutex* l) {}
void mutex_unlock(struct mutex* l) {}
void panicf( char *fmt, ...) {
va_list ap;
va_start( ap, fmt );
fprintf(stderr,"***PANIC*** ");
vfprintf(stderr, fmt, ap );
va_end( ap );
exit(1);
}
void debugf(const char *fmt, ...) {
va_list ap;
va_start( ap, fmt );
fprintf(stderr,"DEBUGF: ");
vfprintf( stderr, fmt, ap );
va_end( ap );
}
void ldebugf(const char* file, int line, const char *fmt, ...) {
va_list ap;
va_start( ap, fmt );
fprintf( stderr, "%s:%d ", file, line );
vfprintf( stderr, fmt, ap );
va_end( ap );
}
int storage_read_sectors(unsigned long start, int count, void* buf)
{
if ( count > 1 )
DEBUGF("[Reading %d blocks: 0x%lx to 0x%lx]\n",
count, start, start+count-1);
else
DEBUGF("[Reading block 0x%lx]\n", start);
if(fseek(file,start*BLOCK_SIZE,SEEK_SET)) {
perror("fseek");
return -1;
}
if(!fread(buf,BLOCK_SIZE,count,file)) {
DEBUGF("ata_write_sectors(0x%lx, 0x%x, %p)\n", start, count, buf );
perror("fread");
panicf("Disk error\n");
}
return 0;
}
int storage_write_sectors(unsigned long start, int count, void* buf)
{
if ( count > 1 )
DEBUGF("[Writing %d blocks: 0x%lx to 0x%lx]\n",
count, start, start+count-1);
else
DEBUGF("[Writing block 0x%lx]\n", start);
if (start == 0)
panicf("Writing on sector 0!\n");
if(fseek(file,start*BLOCK_SIZE,SEEK_SET)) {
perror("fseek");
return -1;
}
if(!fwrite(buf,BLOCK_SIZE,count,file)) {
DEBUGF("ata_write_sectors(0x%lx, 0x%x, %p)\n", start, count, buf );
perror("fwrite");
panicf("Disk error\n");
}
return 0;
}
int ata_init(void)
{
file=fopen(img_filename,"rb+");
if(!file) {
fprintf(stderr, "read_disk() - Could not find \"%s\"\n",img_filename);
return -1;
}
return 0;
}
void ata_exit(void)
{
fclose(file);
}