Macintosh-SW/EMILE
1
0
Fork 0
mirror of https://github.com/vivier/EMILE.git synced 2024-06-12 19:22:46 +00:00
Code Issues Projects Releases Wiki Activity

Read the capacity of the disk and the sector size

Browse Source
This commit is contained in:
Laurent Vivier 2005-11-22 00:53:48 +00:00
parent 0db7640ed5
commit 3d8cfe6db6
4 changed files with 18 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libscsi/Makefile
View File

@ -9,7 +9,7 @@ CPPFLAGS = -I$(TOP)/../libmacos -DARCH_M68K
LIBRARY = libscsi.a
SOURCES = scsi_read_sector.c scsi_command.c scsi_INQUIRY.c scsi_READ.c \
scsi_open.c scsi_close.c
scsi_open.c scsi_close.c scsi_READ_CAPACITY.c
HEADERS = libscsi.h

2
libscsi/libscsi.h
View File

@ -10,12 +10,14 @@
typedef struct {
int target;
unsigned int sector_size;
unsigned long capacity;
} scsi_device_t;
extern int scsi_command(int target, char* cdb, int count, TIB_t* tib);
extern int scsi_INQUIRY(int target, char* buffer, size_t count);
extern int scsi_READ(int target, unsigned long offset, unsigned short nb_blocks,
char *buffer, int buffer_size);
extern int scsi_READ_CAPACITY(int target, char *buffer, size_t count);
extern scsi_device_t *scsi_open(int target);
extern int scsi_read_sector(scsi_device_t *device, off_t offset, void* buffer, size_t size);

8
libscsi/scsi_READ_CAPACITY.c
View File

@ -11,9 +11,9 @@
#include "libscsi.h"
int scsi_INQUIRY(int target, char *buffer, size_t count)
int scsi_READ_CAPACITY(int target, char *buffer, size_t count)
{
char cdb[8];
char cdb[10];
TIB_t tib[2];
cdb[0] = READ_CAPACITY;
@ -24,6 +24,8 @@ int scsi_INQUIRY(int target, char *buffer, size_t count)
cdb[5] = 0;
cdb[6] = 0;
cdb[7] = 0;
cdb[8] = 0;
cdb[9] = 0;
tib[0].opcode = op_no_inc;
tib[0].param1 = (int)buffer;
@ -32,5 +34,5 @@ int scsi_INQUIRY(int target, char *buffer, size_t count)
tib[1].param1 = 0;
tib[1].param2 = 0;
return scsi_command(target, cdb, 6, tib);
return scsi_command(target, cdb, 10, tib);
}

13
libscsi/scsi_open.c
View File

@ -6,19 +6,26 @@
#include <stdlib.h>
#include "libscsi.h"
#include <macos/errors.h>
#define SECTOR_SIZE (2048)
#include "libscsi.h"
scsi_device_t *scsi_open(int target)
{
scsi_device_t *dev;
unsigned char buff[8];
OSErr err;
err = scsi_READ_CAPACITY(target, buff, 8);
if (err != noErr)
return NULL;
dev = (scsi_device_t *)malloc(sizeof(scsi_device_t));
if (dev == NULL)
return NULL;
dev->target = target;
dev->sector_size = SECTOR_SIZE;
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];
return dev;
}