1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
/*
*
* (c) 2005 Laurent Vivier <LaurentVivier@wanadoo.fr>
*
*/
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <macos/lowmem.h>
#include <macos/devices.h>
#include <macos/video.h>
#include "misc.h"
void turn_off_interrupts()
{
int i;
short count;
DCtlHandle *currentHandle;
DCtlPtr currentPtr;
DriverHeader *driverPtr, **driverHandle;
short refnum;
volatile OSErr err; /* because -O2 remove call to PBControlSync() otherwise... */
VDParamBlock pb;
VDFlagRec flag;
count = LMGetUnitTableEntryCount();
currentHandle = (DCtlEntry ***) LMGetUTableBase();
for (i = 0; i < count; i++)
{
if (!currentHandle[i])
continue;
currentPtr = *(currentHandle[i]);
if (currentPtr->dCtlFlags & dRAMBasedMask)
{
driverHandle = (void*)(currentPtr->dCtlDriver);
if (!driverHandle)
continue;
driverPtr = *driverHandle;
}
else
driverPtr = (void*)(currentPtr->dCtlDriver);
err = OpenDriver(driverPtr->drvrName, &refnum);
if (err != noErr)
continue;
pb.ioRefNum = refnum;
pb.csCode = 7; /* SetInterrupt */
flag.flag = 1;
pb.csParam = &flag;
err = PBControlSync((ParmBlkPtr) &pb);
}
}
|
