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Add support for non-standard (i.e. non apple) CDROM drive that doesnot gives a capacity

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This commit is contained in:
Laurent Vivier 2006-10-27 17:14:30 +00:00
parent a072a95201
commit 0abca62f09
1 changed files with 19 additions and 2 deletions
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21
libscsi/scsi_open.c
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@ -4,21 +4,34 @@
*
*/
#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[8];
unsigned char buff[BUFFER_SIZE];
OSErr err;
err = scsi_READ_CAPACITY(target, buff, 8);
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)
@ -27,5 +40,9 @@ scsi_device_t *scsi_open(int 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;
}