EMILE/libscsi/scsi_open.c

49 lines
1.1 KiB
C

/*
*
* (c) 2005 Laurent Vivier <Laurent@lvivier.info>
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <macos/errors.h>
#include "libscsi.h"
#define BUFFER_SIZE (255)
extern void memdump(unsigned char* addr, unsigned long size);
scsi_device_t *scsi_open(int target)
{
scsi_device_t *dev;
unsigned char buff[BUFFER_SIZE];
OSErr err;
err = scsi_TEST_UNIT_READY(target, buff, BUFFER_SIZE);
if (err != noErr)
printf("WARNING: cannot execute TEST_UNIT_READY\n");
err = scsi_INQUIRY(target, buff, BUFFER_SIZE);
if (err != noErr)
printf("WARNING: cannot execute INQUIRY\n");
err = scsi_READ_CAPACITY(target, buff, BUFFER_SIZE);
if (err != noErr) {
printf("ERROR: cannot execute READ_CAPACITY\n");
return NULL;
}
dev = (scsi_device_t *)malloc(sizeof(scsi_device_t));
if (dev == NULL)
return NULL;
dev->target = target;
dev->capacity = (buff[0] << 24) | (buff[1] << 16) | (buff[2] << 8) | buff[3];
dev->sector_size = (buff[4] << 24) | (buff[5] << 16) | (buff[6] << 8) | buff[7];
if ((dev->sector_size != 512) && (dev->sector_size != 2048))
{
dev->sector_size = 2048;
}
return dev;
}