| 1 |
/* |
| 2 |
* disk.cpp - Generic disk driver |
| 3 |
* |
| 4 |
* Basilisk II (C) 1997-2001 Christian Bauer |
| 5 |
* |
| 6 |
* This program is free software; you can redistribute it and/or modify |
| 7 |
* it under the terms of the GNU General Public License as published by |
| 8 |
* the Free Software Foundation; either version 2 of the License, or |
| 9 |
* (at your option) any later version. |
| 10 |
* |
| 11 |
* This program is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
* GNU General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU General Public License |
| 17 |
* along with this program; if not, write to the Free Software |
| 18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 |
*/ |
| 20 |
|
| 21 |
/* |
| 22 |
* SEE ALSO |
| 23 |
* Inside Macintosh: Devices, chapter 1 "Device Manager" |
| 24 |
* Technote DV 05: "Drive Queue Elements" |
| 25 |
* Technote DV 23: "Driver Education" |
| 26 |
* Technote FL 24: "Don't Look at ioPosOffset for Devices" |
| 27 |
*/ |
| 28 |
|
| 29 |
#include <string.h> |
| 30 |
#include <vector> |
| 31 |
|
| 32 |
#ifndef NO_STD_NAMESPACE |
| 33 |
using std::vector; |
| 34 |
#endif |
| 35 |
|
| 36 |
#include "sysdeps.h" |
| 37 |
#include "cpu_emulation.h" |
| 38 |
#include "main.h" |
| 39 |
#include "macos_util.h" |
| 40 |
#include "sys.h" |
| 41 |
#include "prefs.h" |
| 42 |
#include "disk.h" |
| 43 |
|
| 44 |
#define DEBUG 0 |
| 45 |
#include "debug.h" |
| 46 |
|
| 47 |
|
| 48 |
// .Disk Disk/drive icon |
| 49 |
const uint8 DiskIcon[258] = { |
| 50 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 51 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 52 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 53 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 54 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0xff, 0xff, 0xfe, |
| 55 |
0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, |
| 56 |
0x80, 0x00, 0x00, 0x01, 0x8c, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, 0x80, 0x00, 0x00, 0x01, |
| 57 |
0x7f, 0xff, 0xff, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 58 |
|
| 59 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 60 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 61 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 62 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 63 |
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7f, 0xff, 0xff, 0xfe, |
| 64 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
| 65 |
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, |
| 66 |
0x7f, 0xff, 0xff, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 67 |
|
| 68 |
0, 0 |
| 69 |
}; |
| 70 |
|
| 71 |
|
| 72 |
// Struct for each drive |
| 73 |
struct disk_drive_info { |
| 74 |
disk_drive_info() : num(0), fh(NULL), start_byte(0), read_only(false), status(0) {} |
| 75 |
disk_drive_info(void *fh_, bool ro) : num(0), fh(fh_), read_only(ro), status(0) {} |
| 76 |
|
| 77 |
void close_fh(void) { Sys_close(fh); } |
| 78 |
|
| 79 |
int num; // Drive number |
| 80 |
void *fh; // File handle |
| 81 |
loff_t start_byte; // Start of HFS partition on disk |
| 82 |
uint32 num_blocks; // Size in 512-byte blocks |
| 83 |
bool to_be_mounted; // Flag: drive must be mounted in accRun |
| 84 |
bool read_only; // Flag: force write protection |
| 85 |
uint32 status; // Mac address of drive status record |
| 86 |
}; |
| 87 |
|
| 88 |
// List of drives handled by this driver |
| 89 |
typedef vector<disk_drive_info> drive_vec; |
| 90 |
static drive_vec drives; |
| 91 |
|
| 92 |
// Icon address (Mac address space, set by PatchROM()) |
| 93 |
uint32 DiskIconAddr; |
| 94 |
|
| 95 |
// Flag: Control(accRun) has been called, interrupt routine is now active |
| 96 |
static bool acc_run_called = false; |
| 97 |
|
| 98 |
|
| 99 |
/* |
| 100 |
* Get pointer to drive info or drives.end() if not found |
| 101 |
*/ |
| 102 |
|
| 103 |
static drive_vec::iterator get_drive_info(int num) |
| 104 |
{ |
| 105 |
drive_vec::iterator info, end = drives.end(); |
| 106 |
for (info = drives.begin(); info != end; ++info) { |
| 107 |
if (info->num == num) |
| 108 |
return info; |
| 109 |
} |
| 110 |
return info; |
| 111 |
} |
| 112 |
|
| 113 |
|
| 114 |
/* |
| 115 |
* Find HFS partition, set info->start_byte and info->num_blocks |
| 116 |
* (0 = no partition map or HFS partition found, assume flat disk image) |
| 117 |
*/ |
| 118 |
|
| 119 |
static void find_hfs_partition(disk_drive_info &info) |
| 120 |
{ |
| 121 |
info.start_byte = 0; |
| 122 |
info.num_blocks = 0; |
| 123 |
uint8 *map = new uint8[512]; |
| 124 |
|
| 125 |
// Search first 64 blocks for HFS partition |
| 126 |
for (int i=0; i<64; i++) { |
| 127 |
if (Sys_read(info.fh, map, i * 512, 512) != 512) |
| 128 |
break; |
| 129 |
|
| 130 |
// Not a partition map block? Then look at next block |
| 131 |
uint16 sig = (map[0] << 8) | map[1]; |
| 132 |
if (sig != 0x504d) |
| 133 |
continue; |
| 134 |
|
| 135 |
// Partition map block found, Apple HFS partition? |
| 136 |
if (strcmp((char *)(map + 48), "Apple_HFS") == 0) { |
| 137 |
info.start_byte = ntohl(((uint32 *)map)[2]) << 9; |
| 138 |
info.num_blocks = ntohl(((uint32 *)map)[3]); |
| 139 |
D(bug(" HFS partition found at %d, %d blocks\n", info.start_byte, info.num_blocks)); |
| 140 |
break; |
| 141 |
} |
| 142 |
} |
| 143 |
delete[] map; |
| 144 |
} |
| 145 |
|
| 146 |
|
| 147 |
/* |
| 148 |
* Initialization |
| 149 |
*/ |
| 150 |
|
| 151 |
void DiskInit(void) |
| 152 |
{ |
| 153 |
// No drives specified in prefs? Then add defaults |
| 154 |
if (PrefsFindString("disk", 0) == NULL) |
| 155 |
SysAddDiskPrefs(); |
| 156 |
|
| 157 |
// Add drives specified in preferences |
| 158 |
int index = 0; |
| 159 |
const char *str; |
| 160 |
while ((str = PrefsFindString("disk", index++)) != NULL) { |
| 161 |
bool read_only = false; |
| 162 |
if (str[0] == '*') { |
| 163 |
read_only = true; |
| 164 |
str++; |
| 165 |
} |
| 166 |
void *fh = Sys_open(str, read_only); |
| 167 |
if (fh) |
| 168 |
drives.push_back(disk_drive_info(fh, SysIsReadOnly(fh))); |
| 169 |
} |
| 170 |
} |
| 171 |
|
| 172 |
|
| 173 |
/* |
| 174 |
* Deinitialization |
| 175 |
*/ |
| 176 |
|
| 177 |
void DiskExit(void) |
| 178 |
{ |
| 179 |
drive_vec::iterator info, end = drives.end(); |
| 180 |
for (info = drives.begin(); info != end; ++info) |
| 181 |
info->close_fh(); |
| 182 |
drives.clear(); |
| 183 |
} |
| 184 |
|
| 185 |
|
| 186 |
/* |
| 187 |
* Disk was inserted, flag for mounting |
| 188 |
*/ |
| 189 |
|
| 190 |
bool DiskMountVolume(void *fh) |
| 191 |
{ |
| 192 |
drive_vec::iterator info = drives.begin(), end = drives.end(); |
| 193 |
while (info != end && info->fh != fh) |
| 194 |
++info; |
| 195 |
if (info != end) { |
| 196 |
if (SysIsDiskInserted(info->fh)) { |
| 197 |
info->read_only = SysIsReadOnly(info->fh); |
| 198 |
WriteMacInt8(info->status + dsDiskInPlace, 1); // Inserted removable disk |
| 199 |
WriteMacInt8(info->status + dsWriteProt, info->read_only ? 0xff : 0); |
| 200 |
find_hfs_partition(*info); |
| 201 |
if (info->start_byte == 0) |
| 202 |
info->num_blocks = SysGetFileSize(info->fh) / 512; |
| 203 |
WriteMacInt16(info->status + dsDriveSize, info->num_blocks & 0xffff); |
| 204 |
WriteMacInt16(info->status + dsDriveS1, info->num_blocks >> 16); |
| 205 |
info->to_be_mounted = true; |
| 206 |
} |
| 207 |
return true; |
| 208 |
} else |
| 209 |
return false; |
| 210 |
} |
| 211 |
|
| 212 |
|
| 213 |
/* |
| 214 |
* Mount volumes for which the to_be_mounted flag is set |
| 215 |
* (called during interrupt time) |
| 216 |
*/ |
| 217 |
|
| 218 |
static void mount_mountable_volumes(void) |
| 219 |
{ |
| 220 |
drive_vec::iterator info, end = drives.end(); |
| 221 |
for (info = drives.begin(); info != end; ++info) { |
| 222 |
|
| 223 |
// Disk in drive? |
| 224 |
if (!ReadMacInt8(info->status + dsDiskInPlace)) { |
| 225 |
|
| 226 |
// No, check if disk was inserted |
| 227 |
if (SysIsDiskInserted(info->fh)) |
| 228 |
DiskMountVolume(info->fh); |
| 229 |
} |
| 230 |
|
| 231 |
// Mount disk if flagged |
| 232 |
if (info->to_be_mounted) { |
| 233 |
D(bug(" mounting drive %d\n", info->num)); |
| 234 |
M68kRegisters r; |
| 235 |
r.d[0] = info->num; |
| 236 |
r.a[0] = 7; // diskEvent |
| 237 |
Execute68kTrap(0xa02f, &r); // PostEvent() |
| 238 |
info->to_be_mounted = false; |
| 239 |
} |
| 240 |
} |
| 241 |
} |
| 242 |
|
| 243 |
|
| 244 |
/* |
| 245 |
* Driver Open() routine |
| 246 |
*/ |
| 247 |
|
| 248 |
int16 DiskOpen(uint32 pb, uint32 dce) |
| 249 |
{ |
| 250 |
D(bug("DiskOpen\n")); |
| 251 |
|
| 252 |
// Set up DCE |
| 253 |
WriteMacInt32(dce + dCtlPosition, 0); |
| 254 |
acc_run_called = false; |
| 255 |
|
| 256 |
// Install drives |
| 257 |
drive_vec::iterator info, end = drives.end(); |
| 258 |
for (info = drives.begin(); info != end; ++info) { |
| 259 |
|
| 260 |
info->num = FindFreeDriveNumber(1); |
| 261 |
info->to_be_mounted = false; |
| 262 |
|
| 263 |
if (info->fh) { |
| 264 |
|
| 265 |
// Allocate drive status record |
| 266 |
M68kRegisters r; |
| 267 |
r.d[0] = SIZEOF_DrvSts; |
| 268 |
Execute68kTrap(0xa71e, &r); // NewPtrSysClear() |
| 269 |
if (r.a[0] == 0) |
| 270 |
continue; |
| 271 |
info->status = r.a[0]; |
| 272 |
D(bug(" DrvSts at %08lx\n", info->status)); |
| 273 |
|
| 274 |
// Set up drive status |
| 275 |
WriteMacInt16(info->status + dsQType, hard20); |
| 276 |
WriteMacInt8(info->status + dsInstalled, 1); |
| 277 |
bool disk_in_place = false; |
| 278 |
if (SysIsFixedDisk(info->fh)) { |
| 279 |
WriteMacInt8(info->status + dsDiskInPlace, 8); // Fixed disk |
| 280 |
disk_in_place = true; |
| 281 |
} else if (SysIsDiskInserted(info->fh)) { |
| 282 |
WriteMacInt8(info->status + dsDiskInPlace, 1); // Inserted removable disk |
| 283 |
disk_in_place = true; |
| 284 |
} |
| 285 |
if (disk_in_place) { |
| 286 |
D(bug(" disk inserted\n")); |
| 287 |
WriteMacInt8(info->status + dsWriteProt, info->read_only ? 0x80 : 0); |
| 288 |
find_hfs_partition(*info); |
| 289 |
if (info->start_byte == 0) |
| 290 |
info->num_blocks = SysGetFileSize(info->fh) / 512; |
| 291 |
info->to_be_mounted = true; |
| 292 |
} |
| 293 |
D(bug(" %d blocks\n", info->num_blocks)); |
| 294 |
WriteMacInt16(info->status + dsDriveSize, info->num_blocks & 0xffff); |
| 295 |
WriteMacInt16(info->status + dsDriveS1, info->num_blocks >> 16); |
| 296 |
|
| 297 |
// Add drive to drive queue |
| 298 |
D(bug(" adding drive %d\n", info->num)); |
| 299 |
r.d[0] = (info->num << 16) | (DiskRefNum & 0xffff); |
| 300 |
r.a[0] = info->status + dsQLink; |
| 301 |
Execute68kTrap(0xa04e, &r); // AddDrive() |
| 302 |
} |
| 303 |
} |
| 304 |
return noErr; |
| 305 |
} |
| 306 |
|
| 307 |
|
| 308 |
/* |
| 309 |
* Driver Prime() routine |
| 310 |
*/ |
| 311 |
|
| 312 |
int16 DiskPrime(uint32 pb, uint32 dce) |
| 313 |
{ |
| 314 |
WriteMacInt32(pb + ioActCount, 0); |
| 315 |
|
| 316 |
// Drive valid and disk inserted? |
| 317 |
drive_vec::iterator info = get_drive_info(ReadMacInt16(pb + ioVRefNum)); |
| 318 |
if (info == drives.end()) |
| 319 |
return nsDrvErr; |
| 320 |
if (!ReadMacInt8(info->status + dsDiskInPlace)) |
| 321 |
return offLinErr; |
| 322 |
|
| 323 |
// Get parameters |
| 324 |
void *buffer = Mac2HostAddr(ReadMacInt32(pb + ioBuffer)); |
| 325 |
size_t length = ReadMacInt32(pb + ioReqCount); |
| 326 |
loff_t position = ReadMacInt32(dce + dCtlPosition); |
| 327 |
if (ReadMacInt16(pb + ioPosMode) & 0x100) // 64 bit positioning |
| 328 |
position = ((loff_t)ReadMacInt32(pb + ioWPosOffset) << 32) || ReadMacInt32(pb + ioWPosOffset + 4); |
| 329 |
if ((length & 0x1ff) || (position & 0x1ff)) |
| 330 |
return paramErr; |
| 331 |
|
| 332 |
size_t actual = 0; |
| 333 |
if ((ReadMacInt16(pb + ioTrap) & 0xff) == aRdCmd) { |
| 334 |
|
| 335 |
// Read |
| 336 |
actual = Sys_read(info->fh, buffer, position + info->start_byte, length); |
| 337 |
if (actual != length) |
| 338 |
return readErr; |
| 339 |
|
| 340 |
} else { |
| 341 |
|
| 342 |
// Write |
| 343 |
if (info->read_only) |
| 344 |
return wPrErr; |
| 345 |
actual = Sys_write(info->fh, buffer, position + info->start_byte, length); |
| 346 |
if (actual != length) |
| 347 |
return writErr; |
| 348 |
} |
| 349 |
|
| 350 |
// Update ParamBlock and DCE |
| 351 |
WriteMacInt32(pb + ioActCount, actual); |
| 352 |
WriteMacInt32(dce + dCtlPosition, ReadMacInt32(dce + dCtlPosition) + actual); |
| 353 |
return noErr; |
| 354 |
} |
| 355 |
|
| 356 |
|
| 357 |
/* |
| 358 |
* Driver Control() routine |
| 359 |
*/ |
| 360 |
|
| 361 |
int16 DiskControl(uint32 pb, uint32 dce) |
| 362 |
{ |
| 363 |
uint16 code = ReadMacInt16(pb + csCode); |
| 364 |
D(bug("DiskControl %d\n", code)); |
| 365 |
|
| 366 |
// General codes |
| 367 |
switch (code) { |
| 368 |
case 1: // KillIO |
| 369 |
return noErr; |
| 370 |
|
| 371 |
case 65: { // Periodic action (accRun, "insert" disks on startup) |
| 372 |
mount_mountable_volumes(); |
| 373 |
WriteMacInt16(dce + dCtlFlags, ReadMacInt16(dce + dCtlFlags) & ~0x2000); // Disable periodic action |
| 374 |
acc_run_called = true; |
| 375 |
return noErr; |
| 376 |
} |
| 377 |
} |
| 378 |
|
| 379 |
// Drive valid? |
| 380 |
drive_vec::iterator info = get_drive_info(ReadMacInt16(pb + ioVRefNum)); |
| 381 |
if (info == drives.end()) |
| 382 |
return nsDrvErr; |
| 383 |
|
| 384 |
// Drive-specific codes |
| 385 |
switch (code) { |
| 386 |
case 5: // Verify disk |
| 387 |
if (ReadMacInt8(info->status + dsDiskInPlace) > 0) |
| 388 |
return noErr; |
| 389 |
else |
| 390 |
return offLinErr; |
| 391 |
|
| 392 |
case 6: // Format disk |
| 393 |
if (info->read_only) |
| 394 |
return wPrErr; |
| 395 |
else if (ReadMacInt8(info->status + dsDiskInPlace) > 0) |
| 396 |
return noErr; |
| 397 |
else |
| 398 |
return offLinErr; |
| 399 |
|
| 400 |
case 7: // Eject disk |
| 401 |
if (ReadMacInt8(info->status + dsDiskInPlace) == 8) { |
| 402 |
// Fixed disk, re-insert |
| 403 |
M68kRegisters r; |
| 404 |
r.d[0] = info->num; |
| 405 |
r.a[0] = 7; // diskEvent |
| 406 |
Execute68kTrap(0xa02f, &r); // PostEvent() |
| 407 |
} else if (ReadMacInt8(info->status + dsDiskInPlace) > 0) { |
| 408 |
SysEject(info->fh); |
| 409 |
WriteMacInt8(info->status + dsDiskInPlace, 0); |
| 410 |
} |
| 411 |
return noErr; |
| 412 |
|
| 413 |
case 21: // Get drive icon |
| 414 |
case 22: // Get disk icon |
| 415 |
WriteMacInt32(pb + csParam, DiskIconAddr); |
| 416 |
return noErr; |
| 417 |
|
| 418 |
case 23: // Get drive info |
| 419 |
if (ReadMacInt8(info->status + dsDiskInPlace) == 8) |
| 420 |
WriteMacInt32(pb + csParam, 0x0601); // Unspecified fixed SCSI disk |
| 421 |
else |
| 422 |
WriteMacInt32(pb + csParam, 0x0201); // Unspecified SCSI disk |
| 423 |
return noErr; |
| 424 |
|
| 425 |
case 24: // Get partition size |
| 426 |
if (ReadMacInt8(info->status + dsDiskInPlace) > 0) { |
| 427 |
WriteMacInt32(pb + csParam, info->num_blocks); |
| 428 |
return noErr; |
| 429 |
} else |
| 430 |
return offLinErr; |
| 431 |
|
| 432 |
default: |
| 433 |
printf("WARNING: Unknown DiskControl(%d)\n", code); |
| 434 |
return controlErr; |
| 435 |
} |
| 436 |
} |
| 437 |
|
| 438 |
|
| 439 |
/* |
| 440 |
* Driver Status() routine |
| 441 |
*/ |
| 442 |
|
| 443 |
int16 DiskStatus(uint32 pb, uint32 dce) |
| 444 |
{ |
| 445 |
drive_vec::iterator info = get_drive_info(ReadMacInt16(pb + ioVRefNum)); |
| 446 |
uint16 code = ReadMacInt16(pb + csCode); |
| 447 |
D(bug("DiskStatus %d\n", code)); |
| 448 |
|
| 449 |
// General codes (we can get these even if the drive was invalid) |
| 450 |
switch (code) { |
| 451 |
case 43: { // Driver gestalt |
| 452 |
uint32 sel = ReadMacInt32(pb + csParam); |
| 453 |
D(bug(" driver gestalt %c%c%c%c\n", sel >> 24, sel >> 16, sel >> 8, sel)); |
| 454 |
switch (sel) { |
| 455 |
case FOURCC('v','e','r','s'): // Version |
| 456 |
WriteMacInt32(pb + csParam + 4, 0x01008000); |
| 457 |
break; |
| 458 |
case FOURCC('d','e','v','t'): // Device type |
| 459 |
if (info != drives.end()) { |
| 460 |
if (ReadMacInt8(info->status + dsDiskInPlace) == 8) |
| 461 |
WriteMacInt32(pb + csParam + 4, FOURCC('d','i','s','k')); |
| 462 |
else |
| 463 |
WriteMacInt32(pb + csParam + 4, FOURCC('r','d','s','k')); |
| 464 |
} else |
| 465 |
WriteMacInt32(pb + csParam + 4, FOURCC('d','i','s','k')); |
| 466 |
break; |
| 467 |
case FOURCC('i','n','t','f'): // Interface type |
| 468 |
WriteMacInt32(pb + csParam + 4, EMULATOR_ID_4); |
| 469 |
break; |
| 470 |
case FOURCC('s','y','n','c'): // Only synchronous operation? |
| 471 |
WriteMacInt32(pb + csParam + 4, 0x01000000); |
| 472 |
break; |
| 473 |
case FOURCC('b','o','o','t'): // Boot ID |
| 474 |
if (info != drives.end()) |
| 475 |
WriteMacInt16(pb + csParam + 4, info->num); |
| 476 |
else |
| 477 |
WriteMacInt16(pb + csParam + 4, 0); |
| 478 |
WriteMacInt16(pb + csParam + 6, (uint16)DiskRefNum); |
| 479 |
break; |
| 480 |
case FOURCC('w','i','d','e'): // 64-bit access supported? |
| 481 |
WriteMacInt16(pb + csParam + 4, 0x0100); |
| 482 |
break; |
| 483 |
case FOURCC('p','u','r','g'): // Purge flags |
| 484 |
WriteMacInt32(pb + csParam + 4, 0); |
| 485 |
break; |
| 486 |
case FOURCC('e','j','e','c'): // Eject flags |
| 487 |
WriteMacInt32(pb + csParam + 4, 0x00030003); // Don't eject on shutdown/restart |
| 488 |
break; |
| 489 |
case FOURCC('f','l','u','s'): // Flush flags |
| 490 |
WriteMacInt16(pb + csParam + 4, 0); |
| 491 |
break; |
| 492 |
case FOURCC('v','m','o','p'): // Virtual memory attributes |
| 493 |
WriteMacInt32(pb + csParam + 4, 0); // Drive not available for VM |
| 494 |
break; |
| 495 |
default: |
| 496 |
return statusErr; |
| 497 |
} |
| 498 |
return noErr; |
| 499 |
} |
| 500 |
} |
| 501 |
|
| 502 |
// Drive valid? |
| 503 |
if (info == drives.end()) |
| 504 |
return nsDrvErr; |
| 505 |
|
| 506 |
// Drive-specific codes |
| 507 |
switch (code) { |
| 508 |
case 8: // Get drive status |
| 509 |
Mac2Mac_memcpy(pb + csParam, info->status, 22); |
| 510 |
return noErr; |
| 511 |
|
| 512 |
default: |
| 513 |
printf("WARNING: Unknown DiskStatus(%d)\n", code); |
| 514 |
return statusErr; |
| 515 |
} |
| 516 |
} |
| 517 |
|
| 518 |
|
| 519 |
/* |
| 520 |
* Driver interrupt routine (1Hz) - check for volumes to be mounted |
| 521 |
*/ |
| 522 |
|
| 523 |
void DiskInterrupt(void) |
| 524 |
{ |
| 525 |
if (!acc_run_called) |
| 526 |
return; |
| 527 |
|
| 528 |
mount_mountable_volumes(); |
| 529 |
} |
