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add drive_to_refnum() and refnum_to_drive()

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This commit is contained in:
Laurent Vivier 2007-10-08 13:20:24 +00:00
parent 636b4d0868
commit 8b3e28e5b7
2 changed files with 85 additions and 0 deletions
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82
second/driver.c
View File

@ -12,8 +12,10 @@
#include <macos/lowmem.h>
#include <macos/devices.h>
#include <macos/video.h>
#include <macos/files.h>
#include "misc.h"
#include "driver.h"
#if 0
void list_drivers()
@ -61,6 +63,86 @@ void list_drivers()
}
#endif
#if 0
void list_unit(void)
{
short refnum;
DCtlHandle currentHandle;
DCtlPtr currentPtr;
DriverHeader *driverPtr, **driverHandle;
char name[256];
int j;
QHdrPtr driveQHdr;
DrvQElPtr drivePtr;
printf("Boot drive number: %d\n", LMGetBootDrive());
driveQHdr = LMGetDrvQHdr();
drivePtr = (DrvQEl *)driveQHdr->qHead;
while (drivePtr)
{
printf("drive %d refnum %d\n", drivePtr->dQDrive, drivePtr->dQRefNum);
refnum = drivePtr->dQRefNum;
drivePtr = (DrvQEl *)drivePtr->qLink;
currentHandle = GetDCtlEntry(refnum);
if (!currentHandle)
continue;
currentPtr = *currentHandle;
if (currentPtr->dCtlFlags & dRAMBasedMask)
{
driverHandle = (void*)(currentPtr->dCtlDriver);
if (!driverHandle)
continue;
driverPtr = *driverHandle;
}
else
driverPtr = (void*)(currentPtr->dCtlDriver);
for(j = 0; j < driverPtr->drvrName[0]; j++)
name[j] = driverPtr->drvrName[j + 1];
name[j] = 0;
printf("%s\n", name);
if ((refnum_to_scsi_id(refnum) >= 0) && (refnum_to_scsi_id(refnum) < 7))
printf("SCSI target %d\n", refnum_to_scsi_id(refnum));
}
}
#endif
signed short drive_to_refnum(int drive)
{
QHdrPtr driveQHdr;
DrvQElPtr drivePtr;
driveQHdr = LMGetDrvQHdr();
drivePtr = (DrvQEl *)driveQHdr->qHead;
while (drivePtr)
{
if (drivePtr->dQDrive == drive)
return drivePtr->dQRefNum;
drivePtr = (DrvQEl *)drivePtr->qLink;
}
return -1;
}
int refnum_to_drive(signed short refnum)
{
QHdrPtr driveQHdr;
DrvQElPtr drivePtr;
driveQHdr = LMGetDrvQHdr();
drivePtr = (DrvQEl *)driveQHdr->qHead;
while (drivePtr)
{
if (drivePtr->dQRefNum == refnum)
return drivePtr->dQDrive;
drivePtr = (DrvQEl *)drivePtr->qLink;
}
return -1;
}
void turn_off_interrupts()
{
int i;

3
second/driver.h
View File

@ -14,4 +14,7 @@ static inline signed short scsi_id_to_refnum(int scsi_id)
return ~((signed short)scsi_id + 32);
}
extern signed short drive_to_refnum(int drive);
extern int refnum_to_drive(signed short refnum);
extern void turn_off_interrupts();