Macintosh-HW/MacIIROMDiskDriver
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Inhibit opening driver with PRAM

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Zane Kaminski 2020-07-15 02:13:25 -04:00
parent 8876749ae0
commit b55d31cec0
1 changed files with 5 additions and 0 deletions
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5
rdisk.c
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@ -224,6 +224,11 @@ OSErr RDiskOpen(IOParamPtr p, DCtlPtr d) {
// Do nothing if already opened // Do nothing if already opened
if (d->dCtlStorage) { return noErr; } if (d->dCtlStorage) { return noErr; }
// Do nothing if inhibited
RDiskReadXPRAM(1, 4, &legacy_startup);
RDiskReadXPRAM(1, 5, &legacy_ram);
if ((legacy_startup & 0x07) == 0x04) { return noErr; }
// Allocate storage struct // Allocate storage struct
d->dCtlStorage = NewHandleSysClear(sizeof(RDiskStorage_t)); d->dCtlStorage = NewHandleSysClear(sizeof(RDiskStorage_t));
if (!d->dCtlStorage) { return openErr; } if (!d->dCtlStorage) { return openErr; }