| 1 |
/* |
| 2 |
* sys_amiga.cpp - System dependent routines, Amiga implementation |
| 3 |
* |
| 4 |
* Basilisk II (C) 1997-1999 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 |
#include <exec/types.h> |
| 22 |
#include <exec/memory.h> |
| 23 |
#include <devices/newstyle.h> |
| 24 |
#include <devices/trackdisk.h> |
| 25 |
#include <devices/scsidisk.h> |
| 26 |
#include <resources/disk.h> |
| 27 |
#include <proto/dos.h> |
| 28 |
#include <proto/exec.h> |
| 29 |
#include <proto/disk.h> |
| 30 |
|
| 31 |
#include "sysdeps.h" |
| 32 |
#include "main.h" |
| 33 |
#include "macos_util.h" |
| 34 |
#include "prefs.h" |
| 35 |
#include "user_strings.h" |
| 36 |
#include "sys.h" |
| 37 |
|
| 38 |
#define DEBUG 0 |
| 39 |
#include "debug.h" |
| 40 |
|
| 41 |
|
| 42 |
// File handles are pointers to these structures |
| 43 |
struct file_handle { |
| 44 |
bool is_file; // Flag: plain file or /dev/something? |
| 45 |
bool read_only; // Copy of Sys_open() flag |
| 46 |
loff_t start_byte; // Size of file header (if any) |
| 47 |
loff_t size; // Size of file/device (minus header) |
| 48 |
|
| 49 |
BPTR f; // AmigaDOS file handle (if is_file == true) |
| 50 |
|
| 51 |
struct IOStdReq *io; // Pointer to IORequest (if is_file == false) |
| 52 |
ULONG block_size; // Block size of device (must be a power of two) |
| 53 |
bool is_nsd; // New style device? |
| 54 |
bool does_64bit; // Supports 64 bit trackdisk commands? |
| 55 |
}; |
| 56 |
|
| 57 |
|
| 58 |
// FileInfoBlock (must be global because it has to be on a longword boundary) |
| 59 |
static struct FileInfoBlock FIB; |
| 60 |
|
| 61 |
// Message port for device communication |
| 62 |
static struct MsgPort *the_port = NULL; |
| 63 |
|
| 64 |
// Temporary buffer in chip memory |
| 65 |
const int TMP_BUF_SIZE = 0x10000; |
| 66 |
static UBYTE *tmp_buf = NULL; |
| 67 |
|
| 68 |
|
| 69 |
/* |
| 70 |
* Initialization |
| 71 |
*/ |
| 72 |
|
| 73 |
void SysInit(void) |
| 74 |
{ |
| 75 |
// Create port and temporary buffer |
| 76 |
the_port = CreateMsgPort(); |
| 77 |
tmp_buf = (UBYTE *)AllocMem(TMP_BUF_SIZE, MEMF_CHIP | MEMF_PUBLIC); |
| 78 |
if (the_port == NULL || tmp_buf == NULL) { |
| 79 |
ErrorAlert(GetString(STR_NO_MEM_ERR)); |
| 80 |
QuitEmulator(); |
| 81 |
} |
| 82 |
} |
| 83 |
|
| 84 |
|
| 85 |
/* |
| 86 |
* Deinitialization |
| 87 |
*/ |
| 88 |
|
| 89 |
void SysExit(void) |
| 90 |
{ |
| 91 |
// Delete port and temporary buffer |
| 92 |
if (the_port) |
| 93 |
DeleteMsgPort(the_port); |
| 94 |
if (tmp_buf) |
| 95 |
FreeMem(tmp_buf, TMP_BUF_SIZE); |
| 96 |
} |
| 97 |
|
| 98 |
|
| 99 |
/* |
| 100 |
* This gets called when no "floppy" prefs items are found |
| 101 |
* It scans for available floppy drives and adds appropriate prefs items |
| 102 |
*/ |
| 103 |
|
| 104 |
void SysAddFloppyPrefs(void) |
| 105 |
{ |
| 106 |
#if 0 |
| 107 |
for (int i=0; i<4; i++) { |
| 108 |
ULONG id = GetUnitID(i); |
| 109 |
if (id == DRT_150RPM) { // We need an HD drive |
| 110 |
char str[256]; |
| 111 |
sprintf(str, "/dev/mfm.device/%d/0/0/1474560/512", i); |
| 112 |
PrefsAddString("floppy", str); |
| 113 |
} |
| 114 |
} |
| 115 |
#endif |
| 116 |
} |
| 117 |
|
| 118 |
|
| 119 |
/* |
| 120 |
* This gets called when no "disk" prefs items are found |
| 121 |
* It scans for available HFS volumes and adds appropriate prefs items |
| 122 |
*/ |
| 123 |
|
| 124 |
void SysAddDiskPrefs(void) |
| 125 |
{ |
| 126 |
// AmigaOS doesn't support MacOS partitioning, so this probably doesn't make much sense... |
| 127 |
} |
| 128 |
|
| 129 |
|
| 130 |
/* |
| 131 |
* This gets called when no "cdrom" prefs items are found |
| 132 |
* It scans for available CD-ROM drives and adds appropriate prefs items |
| 133 |
*/ |
| 134 |
|
| 135 |
void SysAddCDROMPrefs(void) |
| 136 |
{ |
| 137 |
// Don't scan for drives if nocdrom option given |
| 138 |
if (PrefsFindBool("nocdrom")) |
| 139 |
return; |
| 140 |
|
| 141 |
//!! |
| 142 |
} |
| 143 |
|
| 144 |
|
| 145 |
/* |
| 146 |
* Add default serial prefs (must be added, even if no ports present) |
| 147 |
*/ |
| 148 |
|
| 149 |
void SysAddSerialPrefs(void) |
| 150 |
{ |
| 151 |
PrefsAddString("seriala", "serial.device/0"); |
| 152 |
PrefsAddString("serialb", "*parallel.device/0"); |
| 153 |
} |
| 154 |
|
| 155 |
|
| 156 |
/* |
| 157 |
* Open file/device, create new file handle (returns NULL on error) |
| 158 |
* |
| 159 |
* Format for device names: /dev/<name>/<unit>/<open flags>/<start block>/<size (blocks)>/<block size> |
| 160 |
*/ |
| 161 |
|
| 162 |
void *Sys_open(const char *name, bool read_only) |
| 163 |
{ |
| 164 |
bool is_file = (strstr(name, "/dev/") != name); |
| 165 |
|
| 166 |
D(bug("Sys_open(%s, %s)\n", name, read_only ? "read-only" : "read/write")); |
| 167 |
|
| 168 |
// File or device? |
| 169 |
if (is_file) { |
| 170 |
|
| 171 |
// File, open it and get stats |
| 172 |
BPTR f = Open((char *)name, MODE_OLDFILE); |
| 173 |
if (!f) |
| 174 |
return NULL; |
| 175 |
if (!ExamineFH(f, &FIB)) { |
| 176 |
Close(f); |
| 177 |
return NULL; |
| 178 |
} |
| 179 |
|
| 180 |
// Check if file is write protected |
| 181 |
if (FIB.fib_Protection & FIBF_WRITE) |
| 182 |
read_only = true; |
| 183 |
|
| 184 |
// Create file_handle |
| 185 |
file_handle *fh = new file_handle; |
| 186 |
fh->f = f; |
| 187 |
fh->is_file = true; |
| 188 |
fh->read_only = read_only; |
| 189 |
|
| 190 |
// Detect disk image file layout |
| 191 |
loff_t size = FIB.fib_Size; |
| 192 |
Seek(fh->f, 0, OFFSET_BEGINNING); |
| 193 |
Read(fh->f, tmp_buf, 256); |
| 194 |
FileDiskLayout(size, tmp_buf, fh->start_byte, fh->size); |
| 195 |
return fh; |
| 196 |
|
| 197 |
} else { |
| 198 |
|
| 199 |
// Device, parse string |
| 200 |
char dev_name[256]; |
| 201 |
ULONG dev_unit = 0, dev_flags = 0, dev_start = 0, dev_size = 16, dev_bsize = 512; |
| 202 |
if (sscanf(name, "/dev/%[^/]/%ld/%ld/%ld/%ld/%ld", dev_name, &dev_unit, &dev_flags, &dev_start, &dev_size, &dev_bsize) < 2) |
| 203 |
return NULL; |
| 204 |
|
| 205 |
// Create IORequest |
| 206 |
struct IOStdReq *io = (struct IOStdReq *)CreateIORequest(the_port, sizeof(struct IOExtTD)); |
| 207 |
if (io == NULL) |
| 208 |
return NULL; |
| 209 |
|
| 210 |
// Open device |
| 211 |
if (OpenDevice((UBYTE *)dev_name, dev_unit, (struct IORequest *)io, dev_flags)) { |
| 212 |
D(bug(" couldn't open device\n")); |
| 213 |
DeleteIORequest(io); |
| 214 |
return NULL; |
| 215 |
} |
| 216 |
|
| 217 |
// Check for new style device |
| 218 |
bool is_nsd = false, does_64bit = false; |
| 219 |
struct NSDeviceQueryResult nsdqr; |
| 220 |
nsdqr.DevQueryFormat = 0; |
| 221 |
nsdqr.SizeAvailable = 0; |
| 222 |
io->io_Command = NSCMD_DEVICEQUERY; |
| 223 |
io->io_Length = sizeof(nsdqr); |
| 224 |
io->io_Data = (APTR)&nsdqr; |
| 225 |
LONG error = DoIO((struct IORequest *)io); |
| 226 |
D(bug("DEVICEQUERY returned %ld (length %ld, actual %ld)\n", error, io->io_Length, io->io_Actual)); |
| 227 |
if ((!error) && (io->io_Actual >= 16) && (io->io_Actual <= sizeof(nsdqr)) && (nsdqr.SizeAvailable == io->io_Actual)) { |
| 228 |
|
| 229 |
// Looks like an NSD |
| 230 |
is_nsd = true; |
| 231 |
D(bug(" new style device, type %ld\n", nsdqr.DeviceType)); |
| 232 |
|
| 233 |
// We only work with trackdisk-like devices |
| 234 |
if (nsdqr.DeviceType != NSDEVTYPE_TRACKDISK) { |
| 235 |
CloseDevice((struct IORequest *)io); |
| 236 |
DeleteIORequest(io); |
| 237 |
return NULL; |
| 238 |
} |
| 239 |
|
| 240 |
// Check whether device is 64 bit capable |
| 241 |
UWORD *cmdcheck; |
| 242 |
for (cmdcheck = nsdqr.SupportedCommands; *cmdcheck; cmdcheck++) { |
| 243 |
if (*cmdcheck == NSCMD_TD_READ64) { |
| 244 |
D(bug(" supports 64 bit commands\n")); |
| 245 |
does_64bit = true; |
| 246 |
} |
| 247 |
} |
| 248 |
} |
| 249 |
|
| 250 |
// Create file_handle |
| 251 |
file_handle *fh = new file_handle; |
| 252 |
fh->io = io; |
| 253 |
fh->is_file = false; |
| 254 |
fh->read_only = read_only; |
| 255 |
fh->start_byte = (loff_t)dev_start * dev_bsize; |
| 256 |
fh->size = (loff_t)dev_size * dev_bsize; |
| 257 |
fh->block_size = dev_bsize; |
| 258 |
fh->is_nsd = is_nsd; |
| 259 |
fh->does_64bit = does_64bit; |
| 260 |
return fh; |
| 261 |
} |
| 262 |
} |
| 263 |
|
| 264 |
|
| 265 |
/* |
| 266 |
* Close file/device, delete file handle |
| 267 |
*/ |
| 268 |
|
| 269 |
void Sys_close(void *arg) |
| 270 |
{ |
| 271 |
file_handle *fh = (file_handle *)arg; |
| 272 |
if (!fh) |
| 273 |
return; |
| 274 |
|
| 275 |
D(bug("Sys_close(%08lx)\n", arg)); |
| 276 |
|
| 277 |
// File or device? |
| 278 |
if (fh->is_file) { |
| 279 |
|
| 280 |
// File, simply close it |
| 281 |
Close(fh->f); |
| 282 |
|
| 283 |
} else { |
| 284 |
|
| 285 |
// Device, close it and delete IORequest |
| 286 |
fh->io->io_Command = CMD_UPDATE; |
| 287 |
DoIO((struct IORequest *)fh->io); |
| 288 |
|
| 289 |
fh->io->io_Command = TD_MOTOR; |
| 290 |
fh->io->io_Length = 0; |
| 291 |
DoIO((struct IORequest *)fh->io); |
| 292 |
|
| 293 |
CloseDevice((struct IORequest *)fh->io); |
| 294 |
DeleteIORequest(fh->io); |
| 295 |
} |
| 296 |
delete fh; |
| 297 |
} |
| 298 |
|
| 299 |
|
| 300 |
/* |
| 301 |
* Read "length" bytes from file/device, starting at "offset", to "buffer", |
| 302 |
* returns number of bytes read (or 0) |
| 303 |
*/ |
| 304 |
|
| 305 |
size_t Sys_read(void *arg, void *buffer, loff_t offset, size_t length) |
| 306 |
{ |
| 307 |
file_handle *fh = (file_handle *)arg; |
| 308 |
if (!fh) |
| 309 |
return 0; |
| 310 |
|
| 311 |
// File or device? |
| 312 |
if (fh->is_file) { |
| 313 |
|
| 314 |
// File, seek to position |
| 315 |
if (Seek(fh->f, offset + fh->start_byte, OFFSET_BEGINNING) == -1) |
| 316 |
return 0; |
| 317 |
|
| 318 |
// Read data |
| 319 |
LONG actual = Read(fh->f, buffer, length); |
| 320 |
if (actual == -1) |
| 321 |
return 0; |
| 322 |
else |
| 323 |
return actual; |
| 324 |
|
| 325 |
} else { |
| 326 |
|
| 327 |
// Device, pre-read (partial read of first block) neccessary? |
| 328 |
loff_t pos = offset + fh->start_byte; |
| 329 |
size_t actual = 0; |
| 330 |
uint32 pre_offset = pos % fh->block_size; |
| 331 |
if (pre_offset) { |
| 332 |
|
| 333 |
// Yes, read one block |
| 334 |
fh->io->io_Command = CMD_READ; |
| 335 |
fh->io->io_Length = fh->block_size; |
| 336 |
fh->io->io_Offset = pos - pre_offset; |
| 337 |
fh->io->io_Data = tmp_buf; |
| 338 |
if (DoIO((struct IORequest *)fh->io) || fh->io->io_Actual != fh->block_size) |
| 339 |
return 0; |
| 340 |
|
| 341 |
// Copy data to destination buffer |
| 342 |
size_t pre_length = fh->block_size - pre_offset; |
| 343 |
if (pre_length > length) |
| 344 |
pre_length = length; |
| 345 |
memcpy(buffer, tmp_buf + pre_offset, pre_length); |
| 346 |
|
| 347 |
// Adjust data pointers |
| 348 |
buffer = (uint8 *)buffer + pre_length; |
| 349 |
pos += pre_length; |
| 350 |
length -= pre_length; |
| 351 |
actual += pre_length; |
| 352 |
} |
| 353 |
|
| 354 |
// Main read (complete reads of middle blocks) possible? |
| 355 |
if (length >= fh->block_size) { |
| 356 |
|
| 357 |
// Yes, read blocks |
| 358 |
size_t main_length = length & ~(fh->block_size - 1); |
| 359 |
fh->io->io_Command = CMD_READ; |
| 360 |
fh->io->io_Length = main_length; |
| 361 |
fh->io->io_Offset = pos; |
| 362 |
fh->io->io_Data = buffer; |
| 363 |
if (DoIO((struct IORequest *)fh->io) || fh->io->io_Actual != main_length) |
| 364 |
return 0; |
| 365 |
|
| 366 |
// Adjust data pointers |
| 367 |
buffer = (uint8 *)buffer + main_length; |
| 368 |
pos += main_length; |
| 369 |
length -= main_length; |
| 370 |
actual += main_length; |
| 371 |
} |
| 372 |
|
| 373 |
// Post-read (partial read of last block) neccessary? |
| 374 |
if (length) { |
| 375 |
|
| 376 |
// Yes, read one block |
| 377 |
fh->io->io_Command = CMD_READ; |
| 378 |
fh->io->io_Length = fh->block_size; |
| 379 |
fh->io->io_Offset = pos; |
| 380 |
fh->io->io_Data = tmp_buf; |
| 381 |
if (DoIO((struct IORequest *)fh->io) || fh->io->io_Actual != fh->block_size) |
| 382 |
return 0; |
| 383 |
|
| 384 |
// Copy data to destination buffer |
| 385 |
memcpy(buffer, tmp_buf, length); |
| 386 |
actual += length; |
| 387 |
} |
| 388 |
|
| 389 |
return actual; |
| 390 |
} |
| 391 |
} |
| 392 |
|
| 393 |
|
| 394 |
/* |
| 395 |
* Write "length" bytes from "buffer" to file/device, starting at "offset", |
| 396 |
* returns number of bytes written (or 0) |
| 397 |
*/ |
| 398 |
|
| 399 |
size_t Sys_write(void *arg, void *buffer, loff_t offset, size_t length) |
| 400 |
{ |
| 401 |
file_handle *fh = (file_handle *)arg; |
| 402 |
if (!fh) |
| 403 |
return 0; |
| 404 |
|
| 405 |
// File or device? |
| 406 |
if (fh->is_file) { |
| 407 |
|
| 408 |
// File, seek to position if neccessary |
| 409 |
if (Seek(fh->f, offset + fh->start_byte, OFFSET_BEGINNING) == -1) |
| 410 |
return 0; |
| 411 |
|
| 412 |
// Write data |
| 413 |
LONG actual = Write(fh->f, buffer, length); |
| 414 |
if (actual == -1) |
| 415 |
return 0; |
| 416 |
else |
| 417 |
return actual; |
| 418 |
|
| 419 |
} else { |
| 420 |
|
| 421 |
// Device, write data |
| 422 |
fh->io->io_Command = CMD_WRITE; |
| 423 |
fh->io->io_Length = length; |
| 424 |
fh->io->io_Offset = offset + fh->start_byte; |
| 425 |
fh->io->io_Data = buffer; |
| 426 |
if (DoIO((struct IORequest *)fh->io)) |
| 427 |
return 0; |
| 428 |
else |
| 429 |
return fh->io->io_Actual; |
| 430 |
} |
| 431 |
} |
| 432 |
|
| 433 |
|
| 434 |
/* |
| 435 |
* Return size of file/device (minus header) |
| 436 |
*/ |
| 437 |
|
| 438 |
loff_t SysGetFileSize(void *arg) |
| 439 |
{ |
| 440 |
file_handle *fh = (file_handle *)arg; |
| 441 |
if (!fh) |
| 442 |
return true; |
| 443 |
|
| 444 |
return fh->size; |
| 445 |
} |
| 446 |
|
| 447 |
|
| 448 |
/* |
| 449 |
* Eject volume (if applicable) |
| 450 |
*/ |
| 451 |
|
| 452 |
void SysEject(void *arg) |
| 453 |
{ |
| 454 |
file_handle *fh = (file_handle *)arg; |
| 455 |
if (!fh) |
| 456 |
return; |
| 457 |
|
| 458 |
if (!fh->is_file) { |
| 459 |
|
| 460 |
// Flush buffer, turn off the drive motor and eject volume |
| 461 |
fh->io->io_Command = CMD_UPDATE; |
| 462 |
DoIO((struct IORequest *)fh->io); |
| 463 |
|
| 464 |
fh->io->io_Command = TD_MOTOR; |
| 465 |
fh->io->io_Length = 0; |
| 466 |
DoIO((struct IORequest *)fh->io); |
| 467 |
|
| 468 |
fh->io->io_Command = TD_EJECT; |
| 469 |
fh->io->io_Length = 1; |
| 470 |
DoIO((struct IORequest *)fh->io); |
| 471 |
} |
| 472 |
} |
| 473 |
|
| 474 |
|
| 475 |
/* |
| 476 |
* Format volume (if applicable) |
| 477 |
*/ |
| 478 |
|
| 479 |
bool SysFormat(void *arg) |
| 480 |
{ |
| 481 |
file_handle *fh = (file_handle *)arg; |
| 482 |
if (!fh) |
| 483 |
return false; |
| 484 |
|
| 485 |
//!! |
| 486 |
return true; |
| 487 |
} |
| 488 |
|
| 489 |
|
| 490 |
/* |
| 491 |
* Check if file/device is read-only (this includes the read-only flag on Sys_open()) |
| 492 |
*/ |
| 493 |
|
| 494 |
bool SysIsReadOnly(void *arg) |
| 495 |
{ |
| 496 |
file_handle *fh = (file_handle *)arg; |
| 497 |
if (!fh) |
| 498 |
return true; |
| 499 |
|
| 500 |
if (fh->is_file) { |
| 501 |
|
| 502 |
// File, return flag given to Sys_open |
| 503 |
return fh->read_only; |
| 504 |
|
| 505 |
} else { |
| 506 |
|
| 507 |
// Device, check write protection |
| 508 |
fh->io->io_Flags = IOF_QUICK; |
| 509 |
fh->io->io_Command = TD_PROTSTATUS; |
| 510 |
BeginIO((struct IORequest *)fh->io); |
| 511 |
if (fh->io->io_Actual) |
| 512 |
return true; |
| 513 |
else |
| 514 |
return fh->read_only; |
| 515 |
} |
| 516 |
} |
| 517 |
|
| 518 |
|
| 519 |
/* |
| 520 |
* Check if the given file handle refers to a fixed or a removable disk |
| 521 |
*/ |
| 522 |
|
| 523 |
bool SysIsFixedDisk(void *arg) |
| 524 |
{ |
| 525 |
file_handle *fh = (file_handle *)arg; |
| 526 |
if (!fh) |
| 527 |
return true; |
| 528 |
|
| 529 |
return true; |
| 530 |
} |
| 531 |
|
| 532 |
|
| 533 |
/* |
| 534 |
* Check if a disk is inserted in the drive (always true for files) |
| 535 |
*/ |
| 536 |
|
| 537 |
bool SysIsDiskInserted(void *arg) |
| 538 |
{ |
| 539 |
file_handle *fh = (file_handle *)arg; |
| 540 |
if (!fh) |
| 541 |
return false; |
| 542 |
|
| 543 |
if (fh->is_file) |
| 544 |
return true; |
| 545 |
else { |
| 546 |
|
| 547 |
// Check medium status |
| 548 |
fh->io->io_Flags = IOF_QUICK; |
| 549 |
fh->io->io_Command = TD_CHANGESTATE; |
| 550 |
fh->io->io_Actual = 0; |
| 551 |
BeginIO((struct IORequest *)fh->io); |
| 552 |
return fh->io->io_Actual == 0; |
| 553 |
} |
| 554 |
} |
| 555 |
|
| 556 |
|
| 557 |
/* |
| 558 |
* Prevent medium removal (if applicable) |
| 559 |
*/ |
| 560 |
|
| 561 |
void SysPreventRemoval(void *arg) |
| 562 |
{ |
| 563 |
file_handle *fh = (file_handle *)arg; |
| 564 |
if (!fh) |
| 565 |
return; |
| 566 |
|
| 567 |
if (!fh->is_file) { |
| 568 |
|
| 569 |
// Send PREVENT ALLOW MEDIUM REMOVAL SCSI command |
| 570 |
struct SCSICmd scsi; |
| 571 |
static const UBYTE the_cmd[6] = {0x1e, 0, 0, 0, 1, 0}; |
| 572 |
scsi.scsi_Length = 0; |
| 573 |
scsi.scsi_Command = (UBYTE *)the_cmd; |
| 574 |
scsi.scsi_CmdLength = 6; |
| 575 |
scsi.scsi_Flags = SCSIF_READ; |
| 576 |
scsi.scsi_Status = 0; |
| 577 |
fh->io->io_Data = &scsi; |
| 578 |
fh->io->io_Length = sizeof(scsi); |
| 579 |
fh->io->io_Command = HD_SCSICMD; |
| 580 |
DoIO((struct IORequest *)fh->io); |
| 581 |
} |
| 582 |
} |
| 583 |
|
| 584 |
|
| 585 |
/* |
| 586 |
* Allow medium removal (if applicable) |
| 587 |
*/ |
| 588 |
|
| 589 |
void SysAllowRemoval(void *arg) |
| 590 |
{ |
| 591 |
file_handle *fh = (file_handle *)arg; |
| 592 |
if (!fh) |
| 593 |
return; |
| 594 |
|
| 595 |
if (!fh->is_file) { |
| 596 |
|
| 597 |
// Send PREVENT ALLOW MEDIUM REMOVAL SCSI command |
| 598 |
struct SCSICmd scsi; |
| 599 |
static const UBYTE the_cmd[6] = {0x1e, 0, 0, 0, 0, 0}; |
| 600 |
scsi.scsi_Length = 0; |
| 601 |
scsi.scsi_Command = (UBYTE *)the_cmd; |
| 602 |
scsi.scsi_CmdLength = 6; |
| 603 |
scsi.scsi_Flags = SCSIF_READ; |
| 604 |
scsi.scsi_Status = 0; |
| 605 |
fh->io->io_Data = &scsi; |
| 606 |
fh->io->io_Length = sizeof(scsi); |
| 607 |
fh->io->io_Command = HD_SCSICMD; |
| 608 |
DoIO((struct IORequest *)fh->io); |
| 609 |
} |
| 610 |
} |
| 611 |
|
| 612 |
|
| 613 |
/* |
| 614 |
* Read CD-ROM TOC (binary MSF format, 804 bytes max.) |
| 615 |
*/ |
| 616 |
|
| 617 |
bool SysCDReadTOC(void *arg, uint8 *toc) |
| 618 |
{ |
| 619 |
file_handle *fh = (file_handle *)arg; |
| 620 |
if (!fh) |
| 621 |
return false; |
| 622 |
|
| 623 |
if (fh->is_file) |
| 624 |
return false; |
| 625 |
else { |
| 626 |
|
| 627 |
// Send READ TOC MSF SCSI command |
| 628 |
struct SCSICmd scsi; |
| 629 |
static const UBYTE read_toc_cmd[10] = {0x43, 0x02, 0, 0, 0, 0, 0, 0x03, 0x24, 0}; |
| 630 |
scsi.scsi_Data = (UWORD *)tmp_buf; |
| 631 |
scsi.scsi_Length = 804; |
| 632 |
scsi.scsi_Command = (UBYTE *)read_toc_cmd; |
| 633 |
scsi.scsi_CmdLength = 10; |
| 634 |
scsi.scsi_Flags = SCSIF_READ; |
| 635 |
scsi.scsi_Status = 0; |
| 636 |
fh->io->io_Data = &scsi; |
| 637 |
fh->io->io_Length = sizeof(scsi); |
| 638 |
fh->io->io_Command = HD_SCSICMD; |
| 639 |
if (DoIO((struct IORequest *)fh->io) || scsi.scsi_Status) |
| 640 |
return false; |
| 641 |
memcpy(toc, tmp_buf, 804); |
| 642 |
return true; |
| 643 |
} |
| 644 |
} |
| 645 |
|
| 646 |
|
| 647 |
/* |
| 648 |
* Read CD-ROM position data (Sub-Q Channel, 16 bytes, see SCSI standard) |
| 649 |
*/ |
| 650 |
|
| 651 |
bool SysCDGetPosition(void *arg, uint8 *pos) |
| 652 |
{ |
| 653 |
file_handle *fh = (file_handle *)arg; |
| 654 |
if (!fh) |
| 655 |
return false; |
| 656 |
|
| 657 |
if (fh->is_file) |
| 658 |
return false; |
| 659 |
else { |
| 660 |
|
| 661 |
// Send READ SUB-CHANNEL SCSI command |
| 662 |
struct SCSICmd scsi; |
| 663 |
static const UBYTE read_subq_cmd[10] = {0x42, 0x02, 0x40, 0x01, 0, 0, 0, 0, 0x10, 0}; |
| 664 |
scsi.scsi_Data = (UWORD *)tmp_buf; |
| 665 |
scsi.scsi_Length = 16; |
| 666 |
scsi.scsi_Command = (UBYTE *)read_subq_cmd; |
| 667 |
scsi.scsi_CmdLength = 10; |
| 668 |
scsi.scsi_Flags = SCSIF_READ; |
| 669 |
scsi.scsi_Status = 0; |
| 670 |
fh->io->io_Data = &scsi; |
| 671 |
fh->io->io_Length = sizeof(scsi); |
| 672 |
fh->io->io_Command = HD_SCSICMD; |
| 673 |
if (DoIO((struct IORequest *)fh->io) || scsi.scsi_Status) |
| 674 |
return false; |
| 675 |
memcpy(pos, tmp_buf, 16); |
| 676 |
return true; |
| 677 |
} |
| 678 |
} |
| 679 |
|
| 680 |
|
| 681 |
/* |
| 682 |
* Play CD audio |
| 683 |
*/ |
| 684 |
|
| 685 |
bool SysCDPlay(void *arg, uint8 start_m, uint8 start_s, uint8 start_f, uint8 end_m, uint8 end_s, uint8 end_f) |
| 686 |
{ |
| 687 |
file_handle *fh = (file_handle *)arg; |
| 688 |
if (!fh) |
| 689 |
return false; |
| 690 |
|
| 691 |
if (fh->is_file) |
| 692 |
return false; |
| 693 |
else { |
| 694 |
|
| 695 |
// Send PLAY AUDIO MSF SCSI command |
| 696 |
struct SCSICmd scsi; |
| 697 |
UBYTE play_cmd[10] = {0x47, 0, 0, start_m, start_s, start_f, end_m, end_s, end_f, 0}; |
| 698 |
scsi.scsi_Data = (UWORD *)tmp_buf; |
| 699 |
scsi.scsi_Length = 0; |
| 700 |
scsi.scsi_Command = play_cmd; |
| 701 |
scsi.scsi_CmdLength = 10; |
| 702 |
scsi.scsi_Flags = SCSIF_READ; |
| 703 |
scsi.scsi_Status = 0; |
| 704 |
fh->io->io_Data = &scsi; |
| 705 |
fh->io->io_Length = sizeof(scsi); |
| 706 |
fh->io->io_Command = HD_SCSICMD; |
| 707 |
if (DoIO((struct IORequest *)fh->io) || scsi.scsi_Status) |
| 708 |
return false; |
| 709 |
return true; |
| 710 |
} |
| 711 |
} |
| 712 |
|
| 713 |
|
| 714 |
/* |
| 715 |
* Pause CD audio |
| 716 |
*/ |
| 717 |
|
| 718 |
bool SysCDPause(void *arg) |
| 719 |
{ |
| 720 |
file_handle *fh = (file_handle *)arg; |
| 721 |
if (!fh) |
| 722 |
return false; |
| 723 |
|
| 724 |
if (fh->is_file) |
| 725 |
return false; |
| 726 |
else { |
| 727 |
|
| 728 |
// Send PAUSE RESUME SCSI command |
| 729 |
struct SCSICmd scsi; |
| 730 |
static const UBYTE pause_cmd[10] = {0x4b, 0, 0, 0, 0, 0, 0, 0, 0, 0}; |
| 731 |
scsi.scsi_Data = (UWORD *)tmp_buf; |
| 732 |
scsi.scsi_Length = 0; |
| 733 |
scsi.scsi_Command = (UBYTE *)pause_cmd; |
| 734 |
scsi.scsi_CmdLength = 10; |
| 735 |
scsi.scsi_Flags = SCSIF_READ; |
| 736 |
scsi.scsi_Status = 0; |
| 737 |
fh->io->io_Data = &scsi; |
| 738 |
fh->io->io_Length = sizeof(scsi); |
| 739 |
fh->io->io_Command = HD_SCSICMD; |
| 740 |
if (DoIO((struct IORequest *)fh->io) || scsi.scsi_Status) |
| 741 |
return false; |
| 742 |
return true; |
| 743 |
} |
| 744 |
} |
| 745 |
|
| 746 |
|
| 747 |
/* |
| 748 |
* Resume paused CD audio |
| 749 |
*/ |
| 750 |
|
| 751 |
bool SysCDResume(void *arg) |
| 752 |
{ |
| 753 |
file_handle *fh = (file_handle *)arg; |
| 754 |
if (!fh) |
| 755 |
return false; |
| 756 |
|
| 757 |
if (fh->is_file) |
| 758 |
return false; |
| 759 |
else { |
| 760 |
|
| 761 |
// Send PAUSE RESUME SCSI command |
| 762 |
struct SCSICmd scsi; |
| 763 |
static const UBYTE resume_cmd[10] = {0x4b, 0, 0, 0, 0, 0, 0, 0, 1, 0}; |
| 764 |
scsi.scsi_Data = (UWORD *)tmp_buf; |
| 765 |
scsi.scsi_Length = 0; |
| 766 |
scsi.scsi_Command = (UBYTE *)resume_cmd; |
| 767 |
scsi.scsi_CmdLength = 10; |
| 768 |
scsi.scsi_Flags = SCSIF_READ; |
| 769 |
scsi.scsi_Status = 0; |
| 770 |
fh->io->io_Data = &scsi; |
| 771 |
fh->io->io_Length = sizeof(scsi); |
| 772 |
fh->io->io_Command = HD_SCSICMD; |
| 773 |
if (DoIO((struct IORequest *)fh->io) || scsi.scsi_Status) |
| 774 |
return false; |
| 775 |
return true; |
| 776 |
} |
| 777 |
} |
| 778 |
|
| 779 |
|
| 780 |
/* |
| 781 |
* Stop CD audio |
| 782 |
*/ |
| 783 |
|
| 784 |
bool SysCDStop(void *arg, uint8 lead_out_m, uint8 lead_out_s, uint8 lead_out_f) |
| 785 |
{ |
| 786 |
file_handle *fh = (file_handle *)arg; |
| 787 |
if (!fh) |
| 788 |
return false; |
| 789 |
|
| 790 |
if (fh->is_file) |
| 791 |
return false; |
| 792 |
else { |
| 793 |
|
| 794 |
uint8 end_m = lead_out_m; |
| 795 |
uint8 end_s = lead_out_s; |
| 796 |
uint8 end_f = lead_out_f + 1; |
| 797 |
if (end_f >= 75) { |
| 798 |
end_f = 0; |
| 799 |
end_s++; |
| 800 |
if (end_s >= 60) { |
| 801 |
end_s = 0; |
| 802 |
end_m++; |
| 803 |
} |
| 804 |
} |
| 805 |
|
| 806 |
// Send PLAY AUDIO MSF SCSI command (play first frame of lead-out area) |
| 807 |
struct SCSICmd scsi; |
| 808 |
UBYTE play_cmd[10] = {0x47, 0, 0, lead_out_m, lead_out_s, lead_out_f, end_m, end_s, end_f, 0}; |
| 809 |
scsi.scsi_Data = (UWORD *)tmp_buf; |
| 810 |
scsi.scsi_Length = 0; |
| 811 |
scsi.scsi_Command = play_cmd; |
| 812 |
scsi.scsi_CmdLength = 10; |
| 813 |
scsi.scsi_Flags = SCSIF_READ; |
| 814 |
scsi.scsi_Status = 0; |
| 815 |
fh->io->io_Data = &scsi; |
| 816 |
fh->io->io_Length = sizeof(scsi); |
| 817 |
fh->io->io_Command = HD_SCSICMD; |
| 818 |
if (DoIO((struct IORequest *)fh->io) || scsi.scsi_Status) |
| 819 |
return false; |
| 820 |
return true; |
| 821 |
} |
| 822 |
} |
| 823 |
|
| 824 |
|
| 825 |
/* |
| 826 |
* Perform CD audio fast-forward/fast-reverse operation starting from specified address |
| 827 |
*/ |
| 828 |
|
| 829 |
bool SysCDScan(void *arg, uint8 start_m, uint8 start_s, uint8 start_f, bool reverse) |
| 830 |
{ |
| 831 |
file_handle *fh = (file_handle *)arg; |
| 832 |
if (!fh) |
| 833 |
return false; |
| 834 |
|
| 835 |
//!! |
| 836 |
return false; |
| 837 |
} |
| 838 |
|
| 839 |
|
| 840 |
/* |
| 841 |
* Set CD audio volume (0..255 each channel) |
| 842 |
*/ |
| 843 |
|
| 844 |
void SysCDSetVolume(void *arg, uint8 left, uint8 right) |
| 845 |
{ |
| 846 |
file_handle *fh = (file_handle *)arg; |
| 847 |
if (!fh) |
| 848 |
return; |
| 849 |
|
| 850 |
if (!fh->is_file) { |
| 851 |
|
| 852 |
// Send MODE SENSE (CD-ROM Audio Control Parameters Page) SCSI command |
| 853 |
struct SCSICmd scsi; |
| 854 |
static const UBYTE mode_sense_cmd[6] = {0x1a, 0x08, 0x0e, 0, 20, 0}; |
| 855 |
scsi.scsi_Data = (UWORD *)tmp_buf; |
| 856 |
scsi.scsi_Length = 20; |
| 857 |
scsi.scsi_Command = (UBYTE *)mode_sense_cmd; |
| 858 |
scsi.scsi_CmdLength = 6; |
| 859 |
scsi.scsi_Flags = SCSIF_READ; |
| 860 |
scsi.scsi_Status = 0; |
| 861 |
fh->io->io_Data = &scsi; |
| 862 |
fh->io->io_Length = sizeof(scsi); |
| 863 |
fh->io->io_Command = HD_SCSICMD; |
| 864 |
if (DoIO((struct IORequest *)fh->io) || scsi.scsi_Status) |
| 865 |
return; |
| 866 |
|
| 867 |
tmp_buf[6] = 0x04; // Immed |
| 868 |
tmp_buf[9] = 0; // LBA/sec format |
| 869 |
tmp_buf[10] = 0; // LBA/sec |
| 870 |
tmp_buf[11] = 0; |
| 871 |
tmp_buf[13] = left; // Port 0 volume |
| 872 |
tmp_buf[15] = right; // Port 1 volume |
| 873 |
|
| 874 |
// Send MODE SELECT (CD-ROM Audio Control Parameters Page) SCSI command |
| 875 |
static const UBYTE mode_select_cmd[6] = {0x15, 0x10, 0, 0, 20, 0}; |
| 876 |
scsi.scsi_Data = (UWORD *)tmp_buf; |
| 877 |
scsi.scsi_Length = 20; |
| 878 |
scsi.scsi_Command = (UBYTE *)mode_select_cmd; |
| 879 |
scsi.scsi_CmdLength = 6; |
| 880 |
scsi.scsi_Flags = SCSIF_WRITE; |
| 881 |
scsi.scsi_Status = 0; |
| 882 |
fh->io->io_Data = &scsi; |
| 883 |
fh->io->io_Length = sizeof(scsi); |
| 884 |
fh->io->io_Command = HD_SCSICMD; |
| 885 |
DoIO((struct IORequest *)fh->io); |
| 886 |
} |
| 887 |
} |
| 888 |
|
| 889 |
|
| 890 |
/* |
| 891 |
* Get CD audio volume (0..255 each channel) |
| 892 |
*/ |
| 893 |
|
| 894 |
void SysCDGetVolume(void *arg, uint8 &left, uint8 &right) |
| 895 |
{ |
| 896 |
file_handle *fh = (file_handle *)arg; |
| 897 |
if (!fh) |
| 898 |
return; |
| 899 |
|
| 900 |
if (!fh->is_file) { |
| 901 |
|
| 902 |
// Send MODE SENSE (CD-ROM Audio Control Parameters Page) SCSI command |
| 903 |
struct SCSICmd scsi; |
| 904 |
static const UBYTE mode_sense_cmd[6] = {0x1a, 0x08, 0x0e, 0, 20, 0}; |
| 905 |
scsi.scsi_Data = (UWORD *)tmp_buf; |
| 906 |
scsi.scsi_Length = 20; |
| 907 |
scsi.scsi_Command = (UBYTE *)mode_sense_cmd; |
| 908 |
scsi.scsi_CmdLength = 6; |
| 909 |
scsi.scsi_Flags = SCSIF_READ; |
| 910 |
scsi.scsi_Status = 0; |
| 911 |
fh->io->io_Data = &scsi; |
| 912 |
fh->io->io_Length = sizeof(scsi); |
| 913 |
fh->io->io_Command = HD_SCSICMD; |
| 914 |
if (DoIO((struct IORequest *)fh->io) || scsi.scsi_Status) |
| 915 |
return; |
| 916 |
left = tmp_buf[13]; // Port 0 volume |
| 917 |
right = tmp_buf[15]; // Port 1 volume |
| 918 |
} |
| 919 |
} |
