| 151 |
|
// Icon address (Mac address space, set by PatchROM()) |
| 152 |
|
uint32 CDROMIconAddr; |
| 153 |
|
|
| 154 |
+ |
// Number of ticks between checks for disk insertion |
| 155 |
+ |
const int driver_delay = 120; |
| 156 |
+ |
|
| 157 |
+ |
// Flag: Control(accRun) has been called, interrupt routine is now active |
| 158 |
+ |
static bool acc_run_called = false; |
| 159 |
+ |
|
| 160 |
|
|
| 161 |
|
/* |
| 162 |
|
* Get pointer to drive info, NULL = invalid drive number |
| 342 |
|
|
| 343 |
|
|
| 344 |
|
/* |
| 345 |
+ |
* Mount volumes for which the to_be_mounted flag is set |
| 346 |
+ |
* (called during interrupt time) |
| 347 |
+ |
*/ |
| 348 |
+ |
|
| 349 |
+ |
static void mount_mountable_volumes(void) |
| 350 |
+ |
{ |
| 351 |
+ |
DriveInfo *info = first_drive_info; |
| 352 |
+ |
while (info != NULL) { |
| 353 |
+ |
|
| 354 |
+ |
// Disk in drive? |
| 355 |
+ |
if (ReadMacInt8(info->status + dsDiskInPlace) == 0) { |
| 356 |
+ |
|
| 357 |
+ |
// No, check if disk was inserted |
| 358 |
+ |
if (SysIsDiskInserted(info->fh)) |
| 359 |
+ |
CDROMMountVolume(info->fh); |
| 360 |
+ |
} |
| 361 |
+ |
|
| 362 |
+ |
// Mount disk if flagged |
| 363 |
+ |
if (info->to_be_mounted) { |
| 364 |
+ |
D(bug(" mounting drive %d\n", info->num)); |
| 365 |
+ |
M68kRegisters r; |
| 366 |
+ |
r.d[0] = info->num; |
| 367 |
+ |
r.a[0] = 7; // diskEvent |
| 368 |
+ |
Execute68kTrap(0xa02f, &r); // PostEvent() |
| 369 |
+ |
info->to_be_mounted = false; |
| 370 |
+ |
} |
| 371 |
+ |
|
| 372 |
+ |
info = info->next; |
| 373 |
+ |
} |
| 374 |
+ |
} |
| 375 |
+ |
|
| 376 |
+ |
|
| 377 |
+ |
/* |
| 378 |
|
* Driver Open() routine |
| 379 |
|
*/ |
| 380 |
|
|
| 384 |
|
|
| 385 |
|
// Set up DCE |
| 386 |
|
WriteMacInt32(dce + dCtlPosition, 0); |
| 387 |
+ |
acc_run_called = false; |
| 388 |
|
|
| 389 |
|
// Install drives |
| 390 |
|
for (DriveInfo *info = first_drive_info; info; info = info->next) { |
| 496 |
|
case 1: // KillIO |
| 497 |
|
return noErr; |
| 498 |
|
|
| 499 |
< |
case 65: { // Periodic action ("insert" disks on startup and check for disk changes) |
| 500 |
< |
DriveInfo *info = first_drive_info; |
| 501 |
< |
while (info != NULL) { |
| 502 |
< |
|
| 463 |
< |
// Disk in drive? |
| 464 |
< |
if (ReadMacInt8(info->status + dsDiskInPlace) == 0) { |
| 465 |
< |
|
| 466 |
< |
// No, check if disk was inserted |
| 467 |
< |
if (SysIsDiskInserted(info->fh)) |
| 468 |
< |
CDROMMountVolume(info->fh); |
| 469 |
< |
} |
| 470 |
< |
|
| 471 |
< |
// Mount disk if flagged |
| 472 |
< |
if (info->to_be_mounted) { |
| 473 |
< |
D(bug(" mounting drive %d\n", info->num)); |
| 474 |
< |
M68kRegisters r; |
| 475 |
< |
r.d[0] = info->num; |
| 476 |
< |
r.a[0] = 7; // diskEvent |
| 477 |
< |
Execute68kTrap(0xa02f, &r); // PostEvent() |
| 478 |
< |
info->to_be_mounted = false; |
| 479 |
< |
} |
| 480 |
< |
|
| 481 |
< |
info = info->next; |
| 482 |
< |
} |
| 499 |
> |
case 65: { // Periodic action (accRun, "insert" disks on startup) |
| 500 |
> |
mount_mountable_volumes(); |
| 501 |
> |
WriteMacInt16(dce + dCtlFlags, ReadMacInt16(dce + dCtlFlags) & ~0x2000); // Disable periodic action |
| 502 |
> |
acc_run_called = true; |
| 503 |
|
return noErr; |
| 504 |
|
} |
| 505 |
|
|
| 959 |
|
return statusErr; |
| 960 |
|
} |
| 961 |
|
} |
| 962 |
+ |
|
| 963 |
+ |
|
| 964 |
+ |
/* |
| 965 |
+ |
* Driver interrupt routine - check for volumes to be mounted |
| 966 |
+ |
*/ |
| 967 |
+ |
|
| 968 |
+ |
void CDROMInterrupt(void) |
| 969 |
+ |
{ |
| 970 |
+ |
static int tick_count = 0; |
| 971 |
+ |
if (!acc_run_called) |
| 972 |
+ |
return; |
| 973 |
+ |
|
| 974 |
+ |
tick_count++; |
| 975 |
+ |
if (tick_count > driver_delay) { |
| 976 |
+ |
tick_count = 0; |
| 977 |
+ |
mount_mountable_volumes(); |
| 978 |
+ |
} |
| 979 |
+ |
} |
