| 1 |
/* |
| 2 |
* sys_beos.cpp - System dependent routines, BeOS implementation |
| 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 |
#include <StorageKit.h> |
| 22 |
#include <InterfaceKit.h> |
| 23 |
#include <kernel/fs_info.h> |
| 24 |
#include <drivers/Drivers.h> |
| 25 |
#include <device/scsi.h> |
| 26 |
|
| 27 |
#include <unistd.h> |
| 28 |
#include <stdio.h> |
| 29 |
#include <stdlib.h> |
| 30 |
#include <string.h> |
| 31 |
#include <fcntl.h> |
| 32 |
|
| 33 |
#include "sysdeps.h" |
| 34 |
#include "main.h" |
| 35 |
#include "macos_util.h" |
| 36 |
#include "prefs.h" |
| 37 |
#include "user_strings.h" |
| 38 |
#include "sys.h" |
| 39 |
|
| 40 |
#define DEBUG 0 |
| 41 |
#include "debug.h" |
| 42 |
|
| 43 |
|
| 44 |
// File handles are pointers to these structures |
| 45 |
struct file_handle { |
| 46 |
file_handle *next; // Pointer to next file handle (must be first in struct!) |
| 47 |
const char *name; // File/device name (copied, for mount menu) |
| 48 |
int fd; // fd of file/device |
| 49 |
bool is_file; // Flag: plain file or /dev/something? |
| 50 |
bool read_only; // Copy of Sys_open() flag |
| 51 |
loff_t start_byte; // Size of file header (if any) |
| 52 |
loff_t file_size; // Size of file data (only valid if is_file is true) |
| 53 |
}; |
| 54 |
|
| 55 |
// Linked list of file handles |
| 56 |
static file_handle *first_file_handle; |
| 57 |
|
| 58 |
// Temporary buffer for transfers from/to kernel space |
| 59 |
const int TMP_BUF_SIZE = 0x10000; |
| 60 |
static uint8 *tmp_buf; |
| 61 |
|
| 62 |
// For B_SCSI_PREVENT_ALLOW |
| 63 |
static const int32 PREVENT = 1; |
| 64 |
static const int32 ALLOW = 0; |
| 65 |
|
| 66 |
|
| 67 |
/* |
| 68 |
* Check if device is a mounted HFS volume, get mount name |
| 69 |
*/ |
| 70 |
|
| 71 |
static bool is_drive_mounted(const char *dev_name, char *mount_name) |
| 72 |
{ |
| 73 |
int32 i = 0; |
| 74 |
dev_t d; |
| 75 |
fs_info info; |
| 76 |
while ((d = next_dev(&i)) >= 0) { |
| 77 |
fs_stat_dev(d, &info); |
| 78 |
if (strcmp(dev_name, info.device_name) == 0) { |
| 79 |
status_t err = -1; |
| 80 |
BPath mount; |
| 81 |
BDirectory dir; |
| 82 |
BEntry entry; |
| 83 |
node_ref node; |
| 84 |
node.device = info.dev; |
| 85 |
node.node = info.root; |
| 86 |
err = dir.SetTo(&node); |
| 87 |
if (!err) |
| 88 |
err = dir.GetEntry(&entry); |
| 89 |
if (!err) |
| 90 |
err = entry.GetPath(&mount); |
| 91 |
if (!err) { |
| 92 |
strcpy(mount_name, mount.Path()); |
| 93 |
return true; |
| 94 |
} |
| 95 |
} |
| 96 |
} |
| 97 |
return false; |
| 98 |
} |
| 99 |
|
| 100 |
|
| 101 |
/* |
| 102 |
* Initialization |
| 103 |
*/ |
| 104 |
|
| 105 |
void SysInit(void) |
| 106 |
{ |
| 107 |
first_file_handle = NULL; |
| 108 |
|
| 109 |
// Allocate temporary buffer |
| 110 |
tmp_buf = new uint8[TMP_BUF_SIZE]; |
| 111 |
} |
| 112 |
|
| 113 |
|
| 114 |
/* |
| 115 |
* Deinitialization |
| 116 |
*/ |
| 117 |
|
| 118 |
void SysExit(void) |
| 119 |
{ |
| 120 |
delete[] tmp_buf; |
| 121 |
} |
| 122 |
|
| 123 |
|
| 124 |
/* |
| 125 |
* Create menu of used volumes (for "mount" menu) |
| 126 |
*/ |
| 127 |
|
| 128 |
void SysCreateVolumeMenu(BMenu *menu, uint32 msg) |
| 129 |
{ |
| 130 |
for (file_handle *fh=first_file_handle; fh; fh=fh->next) |
| 131 |
if (!SysIsFixedDisk(fh)) |
| 132 |
menu->AddItem(new BMenuItem(fh->name, new BMessage(msg))); |
| 133 |
} |
| 134 |
|
| 135 |
|
| 136 |
/* |
| 137 |
* Mount volume given name from mount menu |
| 138 |
*/ |
| 139 |
|
| 140 |
void SysMountVolume(const char *name) |
| 141 |
{ |
| 142 |
file_handle *fh; |
| 143 |
for (fh=first_file_handle; fh && strcmp(fh->name, name); fh=fh->next) ; |
| 144 |
if (fh) |
| 145 |
MountVolume(fh); |
| 146 |
} |
| 147 |
|
| 148 |
|
| 149 |
/* |
| 150 |
* This gets called when no "floppy" prefs items are found |
| 151 |
* It scans for available floppy drives and adds appropriate prefs items |
| 152 |
*/ |
| 153 |
|
| 154 |
void SysAddFloppyPrefs(void) |
| 155 |
{ |
| 156 |
// Only one floppy drive under BeOS |
| 157 |
PrefsAddString("floppy", "/dev/disk/floppy/raw"); |
| 158 |
} |
| 159 |
|
| 160 |
|
| 161 |
/* |
| 162 |
* This gets called when no "disk" prefs items are found |
| 163 |
* It scans for available HFS volumes and adds appropriate prefs items |
| 164 |
*/ |
| 165 |
|
| 166 |
void SysAddDiskPrefs(void) |
| 167 |
{ |
| 168 |
// Let BeOS scan for HFS drives |
| 169 |
D(bug("Looking for Mac volumes...\n")); |
| 170 |
system("mountvolume -allhfs"); |
| 171 |
|
| 172 |
// Add all HFS volumes |
| 173 |
int32 i = 0; |
| 174 |
dev_t d; |
| 175 |
fs_info info; |
| 176 |
while ((d = next_dev(&i)) >= 0) { |
| 177 |
fs_stat_dev(d, &info); |
| 178 |
status_t err = -1; |
| 179 |
BPath mount; |
| 180 |
if (!strcmp(info.fsh_name, "hfs")) { |
| 181 |
BDirectory dir; |
| 182 |
BEntry entry; |
| 183 |
node_ref node; |
| 184 |
node.device = info.dev; |
| 185 |
node.node = info.root; |
| 186 |
err = dir.SetTo(&node); |
| 187 |
if (!err) |
| 188 |
err = dir.GetEntry(&entry); |
| 189 |
if (!err) |
| 190 |
err = entry.GetPath(&mount); |
| 191 |
} |
| 192 |
if (!err) |
| 193 |
err = unmount(mount.Path()); |
| 194 |
if (!err) { |
| 195 |
char dev_name[B_FILE_NAME_LENGTH]; |
| 196 |
if (info.flags & B_FS_IS_READONLY) { |
| 197 |
dev_name[0] = '*'; |
| 198 |
dev_name[1] = 0; |
| 199 |
} else |
| 200 |
dev_name[0] = 0; |
| 201 |
strcat(dev_name, info.device_name); |
| 202 |
PrefsAddString("disk", dev_name); |
| 203 |
} |
| 204 |
} |
| 205 |
} |
| 206 |
|
| 207 |
|
| 208 |
/* |
| 209 |
* This gets called when no "cdrom" prefs items are found |
| 210 |
* It scans for available CD-ROM drives and adds appropriate prefs items |
| 211 |
*/ |
| 212 |
|
| 213 |
// Scan directory for CD-ROM drives, add them to prefs |
| 214 |
static void scan_for_cdrom_drives(const char *directory) |
| 215 |
{ |
| 216 |
// Set directory |
| 217 |
BDirectory dir; |
| 218 |
dir.SetTo(directory); |
| 219 |
if (dir.InitCheck() != B_NO_ERROR) |
| 220 |
return; |
| 221 |
dir.Rewind(); |
| 222 |
|
| 223 |
// Scan each entry |
| 224 |
BEntry entry; |
| 225 |
while (dir.GetNextEntry(&entry) >= 0) { |
| 226 |
|
| 227 |
// Get path and ref for entry |
| 228 |
BPath path; |
| 229 |
if (entry.GetPath(&path) != B_NO_ERROR) |
| 230 |
continue; |
| 231 |
const char *name = path.Path(); |
| 232 |
entry_ref e; |
| 233 |
if (entry.GetRef(&e) != B_NO_ERROR) |
| 234 |
continue; |
| 235 |
|
| 236 |
// Recursively enter subdirectories (except for floppy) |
| 237 |
if (entry.IsDirectory()) { |
| 238 |
if (!strcmp(e.name, "floppy")) |
| 239 |
continue; |
| 240 |
scan_for_cdrom_drives(name); |
| 241 |
} else { |
| 242 |
|
| 243 |
D(bug(" checking '%s'\n", name)); |
| 244 |
|
| 245 |
// Ignore partitions |
| 246 |
if (strcmp(e.name, "raw")) |
| 247 |
continue; |
| 248 |
|
| 249 |
// Open device |
| 250 |
int fd = open(name, O_RDONLY); |
| 251 |
if (fd < 0) |
| 252 |
continue; |
| 253 |
|
| 254 |
// Get geometry and device type |
| 255 |
device_geometry g; |
| 256 |
if (ioctl(fd, B_GET_GEOMETRY, &g, sizeof(g)) < 0) { |
| 257 |
close(fd); |
| 258 |
continue; |
| 259 |
} |
| 260 |
|
| 261 |
// Insert to list if it is a CD drive |
| 262 |
if (g.device_type == B_CD) |
| 263 |
PrefsAddString("cdrom", name); |
| 264 |
close(fd); |
| 265 |
} |
| 266 |
} |
| 267 |
} |
| 268 |
|
| 269 |
void SysAddCDROMPrefs(void) |
| 270 |
{ |
| 271 |
// Don't scan for drives if nocdrom option given |
| 272 |
if (PrefsFindBool("nocdrom")) |
| 273 |
return; |
| 274 |
|
| 275 |
// Look for CD-ROM drives and add prefs items |
| 276 |
D(bug("Looking for CD-ROM drives...\n")); |
| 277 |
scan_for_cdrom_drives("/dev/disk"); |
| 278 |
} |
| 279 |
|
| 280 |
|
| 281 |
/* |
| 282 |
* Add default serial prefs (must be added, even if no ports present) |
| 283 |
*/ |
| 284 |
|
| 285 |
void SysAddSerialPrefs(void) |
| 286 |
{ |
| 287 |
system_info info; |
| 288 |
get_system_info(&info); |
| 289 |
switch (info.platform_type) { |
| 290 |
case B_BEBOX_PLATFORM: |
| 291 |
case B_AT_CLONE_PLATFORM: |
| 292 |
PrefsAddString("seriala", "serial1"); |
| 293 |
PrefsAddString("serialb", "serial2"); |
| 294 |
break; |
| 295 |
case B_MAC_PLATFORM: |
| 296 |
PrefsAddString("seriala", "modem"); |
| 297 |
PrefsAddString("serialb", "printer"); |
| 298 |
break; |
| 299 |
default: |
| 300 |
PrefsAddString("seriala", "none"); |
| 301 |
PrefsAddString("serialb", "none"); |
| 302 |
break; |
| 303 |
} |
| 304 |
} |
| 305 |
|
| 306 |
|
| 307 |
/* |
| 308 |
* Open file/device, create new file handle (returns NULL on error) |
| 309 |
*/ |
| 310 |
|
| 311 |
void *Sys_open(const char *name, bool read_only) |
| 312 |
{ |
| 313 |
static bool published_all = false; |
| 314 |
bool is_file = (strstr(name, "/dev/") != name); |
| 315 |
|
| 316 |
D(bug("Sys_open(%s, %s)\n", name, read_only ? "read-only" : "read/write")); |
| 317 |
|
| 318 |
// Print warning message and eventually unmount drive when this is an HFS volume mounted under BeOS (double mounting will corrupt the volume) |
| 319 |
char mount_name[B_FILE_NAME_LENGTH]; |
| 320 |
if (!is_file && !read_only && is_drive_mounted(name, mount_name)) { |
| 321 |
char str[256 + B_FILE_NAME_LENGTH]; |
| 322 |
sprintf(str, GetString(STR_VOLUME_IS_MOUNTED_WARN), mount_name); |
| 323 |
WarningAlert(str); |
| 324 |
if (unmount(mount_name) != 0) { |
| 325 |
sprintf(str, GetString(STR_CANNOT_UNMOUNT_WARN), mount_name); |
| 326 |
WarningAlert(str); |
| 327 |
return NULL; |
| 328 |
} |
| 329 |
} |
| 330 |
|
| 331 |
int fd = open(name, read_only ? O_RDONLY : O_RDWR); |
| 332 |
if (fd < 0 && !published_all) { |
| 333 |
// Open failed, create all device nodes and try again, but only the first time |
| 334 |
system("mountvolume -publishall"); |
| 335 |
published_all = true; |
| 336 |
fd = open(name, read_only ? O_RDONLY : O_RDWR); |
| 337 |
} |
| 338 |
if (fd >= 0) { |
| 339 |
file_handle *fh = new file_handle; |
| 340 |
fh->name = strdup(name); |
| 341 |
fh->fd = fd; |
| 342 |
fh->is_file = is_file; |
| 343 |
fh->read_only = read_only; |
| 344 |
fh->start_byte = 0; |
| 345 |
if (fh->is_file) { |
| 346 |
// Detect disk image file layout |
| 347 |
loff_t size = lseek(fd, 0, SEEK_END); |
| 348 |
uint8 data[256]; |
| 349 |
lseek(fd, 0, SEEK_SET); |
| 350 |
read(fd, data, 256); |
| 351 |
FileDiskLayout(size, data, fh->start_byte, fh->file_size); |
| 352 |
} |
| 353 |
|
| 354 |
// Enqueue file handle |
| 355 |
fh->next = NULL; |
| 356 |
file_handle *q = first_file_handle; |
| 357 |
if (q) { |
| 358 |
while (q->next) |
| 359 |
q = q->next; |
| 360 |
q->next = fh; |
| 361 |
} else |
| 362 |
first_file_handle = fh; |
| 363 |
return fh; |
| 364 |
} else |
| 365 |
return NULL; |
| 366 |
} |
| 367 |
|
| 368 |
|
| 369 |
/* |
| 370 |
* Close file/device, delete file handle |
| 371 |
*/ |
| 372 |
|
| 373 |
void Sys_close(void *arg) |
| 374 |
{ |
| 375 |
file_handle *fh = (file_handle *)arg; |
| 376 |
if (!fh) |
| 377 |
return; |
| 378 |
|
| 379 |
// Free device name and close file/device |
| 380 |
free((void *)fh->name); |
| 381 |
close(fh->fd); |
| 382 |
|
| 383 |
// Dequeue file handle |
| 384 |
file_handle *q = first_file_handle; |
| 385 |
if (q == fh) { |
| 386 |
first_file_handle = NULL; |
| 387 |
delete fh; |
| 388 |
return; |
| 389 |
} |
| 390 |
while (q) { |
| 391 |
if (q->next == fh) { |
| 392 |
q->next = fh->next; |
| 393 |
delete fh; |
| 394 |
return; |
| 395 |
} |
| 396 |
q = q->next; |
| 397 |
} |
| 398 |
} |
| 399 |
|
| 400 |
|
| 401 |
/* |
| 402 |
* Read "length" bytes from file/device, starting at "offset", to "buffer", |
| 403 |
* returns number of bytes read (or 0) |
| 404 |
*/ |
| 405 |
|
| 406 |
static inline ssize_t sread(int fd, void *buf, size_t count) |
| 407 |
{ |
| 408 |
ssize_t res; |
| 409 |
while ((res = read(fd, buf, count)) == B_INTERRUPTED) ; |
| 410 |
return res; |
| 411 |
} |
| 412 |
|
| 413 |
size_t Sys_read(void *arg, void *buffer, loff_t offset, size_t length) |
| 414 |
{ |
| 415 |
file_handle *fh = (file_handle *)arg; |
| 416 |
if (!fh) |
| 417 |
return 0; |
| 418 |
|
| 419 |
// D(bug("Sys_read(%08lx, %08lx, %Ld, %d)\n", fh, buffer, offset, length)); |
| 420 |
|
| 421 |
// Seek to position |
| 422 |
if (lseek(fh->fd, offset + fh->start_byte, SEEK_SET) < 0) |
| 423 |
return 0; |
| 424 |
|
| 425 |
// Buffer in kernel space? |
| 426 |
size_t actual = 0; |
| 427 |
if ((uint32)buffer < 0x80000000) { |
| 428 |
|
| 429 |
// Yes, transfer via buffer |
| 430 |
while (length) { |
| 431 |
size_t transfer_size = (length > TMP_BUF_SIZE) ? TMP_BUF_SIZE : length; |
| 432 |
if (sread(fh->fd, tmp_buf, transfer_size) != transfer_size) |
| 433 |
return actual; |
| 434 |
memcpy(buffer, tmp_buf, transfer_size); |
| 435 |
buffer = (void *)((uint8 *)buffer + transfer_size); |
| 436 |
length -= transfer_size; |
| 437 |
actual += transfer_size; |
| 438 |
} |
| 439 |
|
| 440 |
} else { |
| 441 |
|
| 442 |
// No, transfer directly |
| 443 |
actual = sread(fh->fd, buffer, length); |
| 444 |
if (actual < 0) |
| 445 |
actual = 0; |
| 446 |
} |
| 447 |
return actual; |
| 448 |
} |
| 449 |
|
| 450 |
|
| 451 |
/* |
| 452 |
* Write "length" bytes from "buffer" to file/device, starting at "offset", |
| 453 |
* returns number of bytes written (or 0) |
| 454 |
*/ |
| 455 |
|
| 456 |
static inline ssize_t swrite(int fd, void *buf, size_t count) |
| 457 |
{ |
| 458 |
ssize_t res; |
| 459 |
while ((res = write(fd, buf, count)) == B_INTERRUPTED) ; |
| 460 |
return res; |
| 461 |
} |
| 462 |
|
| 463 |
size_t Sys_write(void *arg, void *buffer, loff_t offset, size_t length) |
| 464 |
{ |
| 465 |
file_handle *fh = (file_handle *)arg; |
| 466 |
if (!fh) |
| 467 |
return 0; |
| 468 |
|
| 469 |
// D(bug("Sys_write(%08lx, %08lx, %Ld, %d)\n", fh, buffer, offset, length)); |
| 470 |
|
| 471 |
// Seek to position |
| 472 |
if (lseek(fh->fd, offset + fh->start_byte, SEEK_SET) < 0) |
| 473 |
return 0; |
| 474 |
|
| 475 |
// Buffer in kernel space? |
| 476 |
size_t actual = 0; |
| 477 |
if ((uint32)buffer < 0x80000000) { |
| 478 |
|
| 479 |
// Yes, transfer via buffer |
| 480 |
while (length) { |
| 481 |
size_t transfer_size = (length > TMP_BUF_SIZE) ? TMP_BUF_SIZE : length; |
| 482 |
memcpy(tmp_buf, buffer, transfer_size); |
| 483 |
if (swrite(fh->fd, tmp_buf, transfer_size) != transfer_size) |
| 484 |
return actual; |
| 485 |
buffer = (void *)((uint8 *)buffer + transfer_size); |
| 486 |
length -= transfer_size; |
| 487 |
actual += transfer_size; |
| 488 |
} |
| 489 |
|
| 490 |
} else { |
| 491 |
|
| 492 |
// No, transfer directly |
| 493 |
actual = swrite(fh->fd, buffer, length); |
| 494 |
if (actual < 0) |
| 495 |
actual = 0; |
| 496 |
} |
| 497 |
return actual; |
| 498 |
} |
| 499 |
|
| 500 |
|
| 501 |
/* |
| 502 |
* Return size of file/device (minus header) |
| 503 |
*/ |
| 504 |
|
| 505 |
loff_t SysGetFileSize(void *arg) |
| 506 |
{ |
| 507 |
file_handle *fh = (file_handle *)arg; |
| 508 |
if (!fh) |
| 509 |
return true; |
| 510 |
|
| 511 |
if (fh->is_file) |
| 512 |
return fh->file_size; |
| 513 |
else { |
| 514 |
device_geometry g; |
| 515 |
if (ioctl(fh->fd, B_GET_GEOMETRY, &g, sizeof(g)) >= 0) |
| 516 |
return (loff_t)g.bytes_per_sector * g.sectors_per_track * g.cylinder_count * g.head_count; |
| 517 |
else |
| 518 |
return 0; |
| 519 |
} |
| 520 |
} |
| 521 |
|
| 522 |
|
| 523 |
/* |
| 524 |
* Eject volume (if applicable) |
| 525 |
*/ |
| 526 |
|
| 527 |
void SysEject(void *arg) |
| 528 |
{ |
| 529 |
file_handle *fh = (file_handle *)arg; |
| 530 |
if (!fh) |
| 531 |
return; |
| 532 |
|
| 533 |
if (!fh->is_file) |
| 534 |
ioctl(fh->fd, B_EJECT_DEVICE); |
| 535 |
} |
| 536 |
|
| 537 |
|
| 538 |
/* |
| 539 |
* Format volume (if applicable) |
| 540 |
*/ |
| 541 |
|
| 542 |
bool SysFormat(void *arg) |
| 543 |
{ |
| 544 |
file_handle *fh = (file_handle *)arg; |
| 545 |
if (!fh) |
| 546 |
return false; |
| 547 |
|
| 548 |
if (!fh->is_file) |
| 549 |
return ioctl(fh->fd, B_FORMAT_DEVICE) >= 0; |
| 550 |
else |
| 551 |
return false; |
| 552 |
} |
| 553 |
|
| 554 |
|
| 555 |
/* |
| 556 |
* Check if file/device is read-only (this includes the read-only flag on Sys_open()) |
| 557 |
*/ |
| 558 |
|
| 559 |
bool SysIsReadOnly(void *arg) |
| 560 |
{ |
| 561 |
file_handle *fh = (file_handle *)arg; |
| 562 |
if (!fh) |
| 563 |
return true; |
| 564 |
|
| 565 |
if (fh->is_file) { |
| 566 |
|
| 567 |
// File, return flag given to Sys_open |
| 568 |
return fh->read_only; |
| 569 |
|
| 570 |
} else { |
| 571 |
|
| 572 |
// Device, check write protection |
| 573 |
device_geometry g; |
| 574 |
if (ioctl(fh->fd, B_GET_GEOMETRY, &g, sizeof(g)) >= 0) |
| 575 |
return g.read_only | fh->read_only; |
| 576 |
else |
| 577 |
return fh->read_only; // Removable but not inserted |
| 578 |
} |
| 579 |
} |
| 580 |
|
| 581 |
|
| 582 |
/* |
| 583 |
* Check if the given file handle refers to a fixed or a removable disk |
| 584 |
*/ |
| 585 |
|
| 586 |
bool SysIsFixedDisk(void *arg) |
| 587 |
{ |
| 588 |
file_handle *fh = (file_handle *)arg; |
| 589 |
if (!fh) |
| 590 |
return true; |
| 591 |
|
| 592 |
if (fh->is_file) |
| 593 |
return true; |
| 594 |
else { |
| 595 |
device_geometry g; |
| 596 |
if (ioctl(fh->fd, B_GET_GEOMETRY, &g, sizeof(g)) >= 0) |
| 597 |
return !g.removable; |
| 598 |
else |
| 599 |
return false; // Removable but not inserted |
| 600 |
} |
| 601 |
} |
| 602 |
|
| 603 |
|
| 604 |
/* |
| 605 |
* Check if a disk is inserted in the drive (always true for files) |
| 606 |
*/ |
| 607 |
|
| 608 |
bool SysIsDiskInserted(void *arg) |
| 609 |
{ |
| 610 |
file_handle *fh = (file_handle *)arg; |
| 611 |
if (!fh) |
| 612 |
return false; |
| 613 |
|
| 614 |
if (fh->is_file) |
| 615 |
return true; |
| 616 |
else { |
| 617 |
status_t l; |
| 618 |
if (ioctl(fh->fd, B_GET_MEDIA_STATUS, &l, sizeof(l)) >= 0 && l == B_NO_ERROR) |
| 619 |
return true; |
| 620 |
else |
| 621 |
return false; |
| 622 |
} |
| 623 |
} |
| 624 |
|
| 625 |
|
| 626 |
/* |
| 627 |
* Prevent medium removal (if applicable) |
| 628 |
*/ |
| 629 |
|
| 630 |
void SysPreventRemoval(void *arg) |
| 631 |
{ |
| 632 |
file_handle *fh = (file_handle *)arg; |
| 633 |
if (!fh) |
| 634 |
return; |
| 635 |
|
| 636 |
if (!fh->is_file) |
| 637 |
ioctl(fh->fd, B_SCSI_PREVENT_ALLOW, &PREVENT, sizeof(PREVENT)); |
| 638 |
} |
| 639 |
|
| 640 |
|
| 641 |
/* |
| 642 |
* Allow medium removal (if applicable) |
| 643 |
*/ |
| 644 |
|
| 645 |
void SysAllowRemoval(void *arg) |
| 646 |
{ |
| 647 |
file_handle *fh = (file_handle *)arg; |
| 648 |
if (!fh) |
| 649 |
return; |
| 650 |
|
| 651 |
if (!fh->is_file) |
| 652 |
ioctl(fh->fd, B_SCSI_PREVENT_ALLOW, &ALLOW, sizeof(ALLOW)); |
| 653 |
} |
| 654 |
|
| 655 |
|
| 656 |
/* |
| 657 |
* Read CD-ROM TOC (binary MSF format, 804 bytes max.) |
| 658 |
*/ |
| 659 |
|
| 660 |
bool SysCDReadTOC(void *arg, uint8 *toc) |
| 661 |
{ |
| 662 |
file_handle *fh = (file_handle *)arg; |
| 663 |
if (!fh) |
| 664 |
return false; |
| 665 |
|
| 666 |
if (!fh->is_file) { |
| 667 |
memset(tmp_buf, 0, 804); |
| 668 |
if (ioctl(fh->fd, B_SCSI_GET_TOC, tmp_buf, 804) < 0) |
| 669 |
return false; |
| 670 |
memcpy(toc, tmp_buf, 804); |
| 671 |
return true; |
| 672 |
} else |
| 673 |
return false; |
| 674 |
} |
| 675 |
|
| 676 |
|
| 677 |
/* |
| 678 |
* Read CD-ROM position data (Sub-Q Channel, 16 bytes, see SCSI standard) |
| 679 |
*/ |
| 680 |
|
| 681 |
bool SysCDGetPosition(void *arg, uint8 *pos) |
| 682 |
{ |
| 683 |
file_handle *fh = (file_handle *)arg; |
| 684 |
if (!fh) |
| 685 |
return false; |
| 686 |
|
| 687 |
if (!fh->is_file) { |
| 688 |
if (ioctl(fh->fd, B_SCSI_GET_POSITION, tmp_buf, 16) < 0) |
| 689 |
return false; |
| 690 |
memcpy(pos, tmp_buf, 16); |
| 691 |
return true; |
| 692 |
} else |
| 693 |
return false; |
| 694 |
} |
| 695 |
|
| 696 |
|
| 697 |
/* |
| 698 |
* Play CD audio |
| 699 |
*/ |
| 700 |
|
| 701 |
bool SysCDPlay(void *arg, uint8 start_m, uint8 start_s, uint8 start_f, uint8 end_m, uint8 end_s, uint8 end_f) |
| 702 |
{ |
| 703 |
file_handle *fh = (file_handle *)arg; |
| 704 |
if (!fh) |
| 705 |
return false; |
| 706 |
|
| 707 |
if (!fh->is_file) { |
| 708 |
scsi_play_position *p = (scsi_play_position *)tmp_buf; |
| 709 |
p->start_m = start_m; |
| 710 |
p->start_s = start_s; |
| 711 |
p->start_f = start_f; |
| 712 |
p->end_m = end_m; |
| 713 |
p->end_s = end_s; |
| 714 |
p->end_f = end_f; |
| 715 |
return ioctl(fh->fd, B_SCSI_PLAY_POSITION, p, sizeof(scsi_play_position)) == 0; |
| 716 |
} else |
| 717 |
return false; |
| 718 |
} |
| 719 |
|
| 720 |
|
| 721 |
/* |
| 722 |
* Pause CD audio |
| 723 |
*/ |
| 724 |
|
| 725 |
bool SysCDPause(void *arg) |
| 726 |
{ |
| 727 |
file_handle *fh = (file_handle *)arg; |
| 728 |
if (!fh) |
| 729 |
return true; |
| 730 |
|
| 731 |
if (!fh->is_file) |
| 732 |
return ioctl(fh->fd, B_SCSI_PAUSE_AUDIO) == 0; |
| 733 |
else |
| 734 |
return false; |
| 735 |
} |
| 736 |
|
| 737 |
|
| 738 |
/* |
| 739 |
* Resume paused CD audio |
| 740 |
*/ |
| 741 |
|
| 742 |
bool SysCDResume(void *arg) |
| 743 |
{ |
| 744 |
file_handle *fh = (file_handle *)arg; |
| 745 |
if (!fh) |
| 746 |
return false; |
| 747 |
|
| 748 |
if (!fh->is_file) |
| 749 |
return ioctl(fh->fd, B_SCSI_RESUME_AUDIO) == 0; |
| 750 |
else |
| 751 |
return false; |
| 752 |
} |
| 753 |
|
| 754 |
|
| 755 |
/* |
| 756 |
* Stop CD audio |
| 757 |
*/ |
| 758 |
|
| 759 |
bool SysCDStop(void *arg, uint8 lead_out_m, uint8 lead_out_s, uint8 lead_out_f) |
| 760 |
{ |
| 761 |
file_handle *fh = (file_handle *)arg; |
| 762 |
if (!fh) |
| 763 |
return false; |
| 764 |
|
| 765 |
if (!fh->is_file) |
| 766 |
return ioctl(fh->fd, B_SCSI_STOP_AUDIO) == 0; |
| 767 |
else |
| 768 |
return false; |
| 769 |
} |
| 770 |
|
| 771 |
|
| 772 |
/* |
| 773 |
* Perform CD audio fast-forward/fast-reverse operation starting from specified address |
| 774 |
*/ |
| 775 |
|
| 776 |
bool SysCDScan(void *arg, uint8 start_m, uint8 start_s, uint8 start_f, bool reverse) |
| 777 |
{ |
| 778 |
file_handle *fh = (file_handle *)arg; |
| 779 |
if (!fh) |
| 780 |
return false; |
| 781 |
|
| 782 |
if (!fh->is_file) { |
| 783 |
scsi_scan *p = (scsi_scan *)tmp_buf; |
| 784 |
p->speed = 0; |
| 785 |
p->direction = reverse ? -1 : 1; |
| 786 |
return ioctl(fh->fd, B_SCSI_SCAN, p, sizeof(scsi_scan)) == 0; |
| 787 |
} else |
| 788 |
return false; |
| 789 |
} |
| 790 |
|
| 791 |
|
| 792 |
/* |
| 793 |
* Set CD audio volume (0..255 each channel) |
| 794 |
*/ |
| 795 |
|
| 796 |
void SysCDSetVolume(void *arg, uint8 left, uint8 right) |
| 797 |
{ |
| 798 |
file_handle *fh = (file_handle *)arg; |
| 799 |
if (!fh) |
| 800 |
return; |
| 801 |
|
| 802 |
if (!fh->is_file) { |
| 803 |
scsi_volume *p = (scsi_volume *)tmp_buf; |
| 804 |
p->flags = B_SCSI_PORT0_VOLUME | B_SCSI_PORT1_VOLUME; |
| 805 |
p->port0_volume = left; |
| 806 |
p->port1_volume = right; |
| 807 |
ioctl(fh->fd, B_SCSI_SET_VOLUME, p, sizeof(scsi_volume)); |
| 808 |
} |
| 809 |
} |
| 810 |
|
| 811 |
|
| 812 |
/* |
| 813 |
* Get CD audio volume (0..255 each channel) |
| 814 |
*/ |
| 815 |
|
| 816 |
void SysCDGetVolume(void *arg, uint8 &left, uint8 &right) |
| 817 |
{ |
| 818 |
file_handle *fh = (file_handle *)arg; |
| 819 |
if (!fh) |
| 820 |
return; |
| 821 |
|
| 822 |
left = right = 0; |
| 823 |
if (!fh->is_file) { |
| 824 |
scsi_volume *p = (scsi_volume *)tmp_buf; |
| 825 |
p->flags = B_SCSI_PORT0_VOLUME | B_SCSI_PORT1_VOLUME; |
| 826 |
if (ioctl(fh->fd, B_SCSI_GET_VOLUME, p, sizeof(scsi_volume)) == 0) { |
| 827 |
left = p->port0_volume; |
| 828 |
right = p->port1_volume; |
| 829 |
} |
| 830 |
} |
| 831 |
} |
