90 |
|
// Icon address (Mac address space, set by PatchROM()) |
91 |
|
uint32 DiskIconAddr; |
92 |
|
|
93 |
+ |
// Number of ticks between checks for disk insertion |
94 |
+ |
const int driver_delay = 120; |
95 |
+ |
|
96 |
+ |
// Flag: Control(accRun) has been called, interrupt routine is now active |
97 |
+ |
static bool acc_run_called = false; |
98 |
+ |
|
99 |
|
|
100 |
|
/* |
101 |
|
* Get pointer to drive info, NULL = invalid drive number |
190 |
|
|
191 |
|
|
192 |
|
/* |
193 |
+ |
* Mount volumes for which the to_be_mounted flag is set |
194 |
+ |
* (called during interrupt time) |
195 |
+ |
*/ |
196 |
+ |
|
197 |
+ |
static void mount_mountable_volumes(void) |
198 |
+ |
{ |
199 |
+ |
DriveInfo *info = first_drive_info; |
200 |
+ |
while (info != NULL) { |
201 |
+ |
|
202 |
+ |
// Disk in drive? |
203 |
+ |
if (!ReadMacInt8(info->status + dsDiskInPlace)) { |
204 |
+ |
|
205 |
+ |
// No, check if disk was inserted |
206 |
+ |
if (SysIsDiskInserted(info->fh)) |
207 |
+ |
DiskMountVolume(info->fh); |
208 |
+ |
} |
209 |
+ |
|
210 |
+ |
// Mount disk if flagged |
211 |
+ |
if (info->to_be_mounted) { |
212 |
+ |
D(bug(" mounting drive %d\n", info->num)); |
213 |
+ |
M68kRegisters r; |
214 |
+ |
r.d[0] = info->num; |
215 |
+ |
r.a[0] = 7; // diskEvent |
216 |
+ |
Execute68kTrap(0xa02f, &r); // PostEvent() |
217 |
+ |
info->to_be_mounted = false; |
218 |
+ |
} |
219 |
+ |
|
220 |
+ |
info = info->next; |
221 |
+ |
} |
222 |
+ |
} |
223 |
+ |
|
224 |
+ |
|
225 |
+ |
/* |
226 |
|
* Driver Open() routine |
227 |
|
*/ |
228 |
|
|
232 |
|
|
233 |
|
// Set up DCE |
234 |
|
WriteMacInt32(dce + dCtlPosition, 0); |
235 |
+ |
acc_run_called = false; |
236 |
|
|
237 |
|
// Install drives |
238 |
|
for (DriveInfo *info = first_drive_info; info; info = info->next) { |
346 |
|
case 1: // KillIO |
347 |
|
return noErr; |
348 |
|
|
349 |
< |
case 65: { // Periodic action ("insert" disks on startup and check for disk changes) |
350 |
< |
DriveInfo *info = first_drive_info; |
351 |
< |
while (info != NULL) { |
352 |
< |
|
313 |
< |
// Disk in drive? |
314 |
< |
if (!ReadMacInt8(info->status + dsDiskInPlace)) { |
315 |
< |
|
316 |
< |
// No, check if disk was inserted |
317 |
< |
if (SysIsDiskInserted(info->fh)) |
318 |
< |
DiskMountVolume(info->fh); |
319 |
< |
} |
320 |
< |
|
321 |
< |
// Mount disk if flagged |
322 |
< |
if (info->to_be_mounted) { |
323 |
< |
D(bug(" mounting drive %d\n", info->num)); |
324 |
< |
M68kRegisters r; |
325 |
< |
r.d[0] = info->num; |
326 |
< |
r.a[0] = 7; // diskEvent |
327 |
< |
Execute68kTrap(0xa02f, &r); // PostEvent() |
328 |
< |
info->to_be_mounted = false; |
329 |
< |
} |
330 |
< |
|
331 |
< |
info = info->next; |
332 |
< |
} |
349 |
> |
case 65: { // Periodic action (accRun, "insert" disks on startup) |
350 |
> |
mount_mountable_volumes(); |
351 |
> |
WriteMacInt16(dce + dCtlFlags, ReadMacInt16(dce + dCtlFlags) & ~0x2000); // Disable periodic action |
352 |
> |
acc_run_called = true; |
353 |
|
return noErr; |
354 |
|
} |
355 |
|
} |
492 |
|
return statusErr; |
493 |
|
} |
494 |
|
} |
495 |
+ |
|
496 |
+ |
|
497 |
+ |
/* |
498 |
+ |
* Driver interrupt routine - check for volumes to be mounted |
499 |
+ |
*/ |
500 |
+ |
|
501 |
+ |
void DiskInterrupt(void) |
502 |
+ |
{ |
503 |
+ |
static int tick_count = 0; |
504 |
+ |
if (!acc_run_called) |
505 |
+ |
return; |
506 |
+ |
|
507 |
+ |
tick_count++; |
508 |
+ |
if (tick_count > driver_delay) { |
509 |
+ |
tick_count = 0; |
510 |
+ |
mount_mountable_volumes(); |
511 |
+ |
} |
512 |
+ |
} |