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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 | Readme-File README.aztcd for Aztech CD-ROM CDA268-01A, ORCHID CD-3110, OKANO/WEARNES CDD110 CD-ROM Driver BETA-Version 0.6 and newer (for other drives see 6.-8.) NOTE: THIS DRIVER WILL WORK WITH THE CD-ROM DRIVES LISTED, WHICH HAVE A PROPRIETARY INTERFACE (implemented on a sound card or on a ISA-AT-bus card). IT WILL DEFINITELY NOT WORK WITH CD-ROM DRIVES WITH *IDE*-INTERFACE, such as the Aztech CDA269-031SE !!! IF YOU'RE USING A CD-ROM DRIVE WITH IDE-INTERFACE, SOMETIMES ALSO CALLED ATAPI-COMPATIBLE, PLEASE USE THE ide-cd.c DRIVER, WRITTEN BY MARK LORD AND SCOTT SNYDER !!! ---------------------------------------------------------------------------- Contents of this file: 1. NOTE 2. INSTALLATION 3. CONFIGURING YOUR KERNEL 4. RECOMPILING YOUR KERNEL 5. KNOWN PROBLEMS, FUTURE DEVELOPMENTS 6. BUG REPORTS 7. OTHER DRIVES 8. IF YOU DON'T SUCCEED ... DEBUGGING 9. TECHNICAL HISTORY OF THE DRIVER 10. ACKNOWLEDGMENTS 11. PROGRAMMING ADD ONS: CDPLAY.C APPENDIX: Source code of cdplay.c ---------------------------------------------------------------------------- 1. NOTE This software has now been tested in some different machines with AZTECH CDA268-01A, ORCHID CDS-3110 and ORCHID/WEARNES CDD110 and has proven to be pretty stable with kernel versions 1.0.0 to 1.1.75. Nevertheless I'd only assign BETA status to the software, as the number of known users is still small. So when in 'day to day' use or when used with different firmware versions of the CD-ROM drives, there still may be some problems. So I'm quite sure I'll see some bug reports (see chapter BUG REPORTS) and you are invited in helping us to increase the number of drives, which are supported, and in debugging this software (see chapters OTHER DRIVES and DEBUGGING). Please read the README-files carefully and always keep a backup copy of your old kernel, in order to reboot if something goes wrong! 2. INSTALLATION If you received this software as a standalone package AZTECH.CDROM.Vxx.tgz (xx=version number) and not included in the standard Linux kernel, read the file AZTECH.CDROM.README included in that package to install it. The standalone package's home is 'ftp.gwdg.de : pub/linux/cdrom/drivers/aztech'. The driver consists of a header file 'aztcd.h', which normally should reside in /usr/include/linux and the source code 'aztcd.c', which normally resides in /usr/src/linux/drivers/block. It uses /dev/aztcd0, which must be a valid block device with major number 29 and reside in directory /dev. To mount a CD-ROM, your kernel needs to have the ISO9660-filesystem support included. 3. CONFIGURING YOUR KERNEL If your kernel is already configured for using the AZTECH driver you will see the following message while Linux boots: Aztech CD-ROM Init: DriverVersion=<version number> BaseAddress=<baseaddress> Aztech CD-ROM Init: FirmwareVersion=<firmware version id of your I/O-card>>> Aztech CD-ROM Init: <drive type> detected Aztech CD-ROM Init: End If the message looks different and you are sure to have a supported drive, it may have a different base address. The Aztech driver does look for the CD-ROM drive at the base address specified in aztcd.h at compile time. This address can be overwritten by boot parameter aztcd=....You should reboot and start Linux with boot parameter aztcd=<base address>, e.g. aztcd=0x320. If you do not know the base address, start your PC with DOS and look at the boot message of your CD-ROM's DOS driver. If the message looks correct, as user 'root' you should be able to mount the drive by mount -t iso9660 -r /dev/aztcd0 /mnt and use it as any other filesystem. (If this does not work, check if /dev/aztcd0 and /mnt do exist and create them, if necessary by doing mknod /dev/aztcd0 b 29 0 mkdir /mnt If you still get a different message while Linux boots or when you get the message, that the ISO9660-filesystem is not supported by your kernel, when you try to mount the CD-ROM drive, you have to recompile your kernel. If you do *not* have an Aztech/Orchid/Okano/Wearnes drive and want to bypass drive detection during Linux boot up, start with boot parameter aztcd=0. Joe Nardone has compiled a boot disk with the Aztech driver for installing Slackware from CDROM. You can find the disk images at 'sunsite.unc.edu'; see file 'aztech.gz.README' for instructions on how to use it. 4. RECOMPILING YOUR KERNEL If your kernel is not yet configured for the AZTECH driver and the ISO9660- filesystem, you have to recompile your kernel: - Edit aztcd.h to set the I/O-address to your I/O-Base address (AZT_BASE_ADDR), the driver does not use interrupts or DMA, so if you are using an AZTECH CD268, an ORCHID CD-3110 or ORCHID/WEARNES CDD110 that's the only item you have to set up. Users of other drives should read chapter OTHER DRIVES of this file. You also can configure that address by LILO boot parameter aztcd=... - Build a new kernel, configure it for 'Aztech/Orchid/Okano/Wearnes support' and include the ISO9660-filesystem. - Activate the new kernel, normally this is done by running lilo (don't for- get to configure it before and to keep a copy of your old kernel in case something goes wrong!). - Reboot - You now should see during boot some messages like Aztech CD-ROM Init: DriverVersion=<version number> BaseAddress=<baseaddress> Aztech CD-ROM Init: FirmwareVersion=<firmware version id of your I/O-card> Aztech CD-ROM Init: <drive type> detected Aztech CD-ROM Init: End - If the message looks correct, as user 'root' you should be able to mount the drive by mount -t iso9660 -r /dev/aztcd0 /mnt and use it as any other filesystem. (If this does not work, check if /dev/aztcd0 and /mnt do exist and create them, if necessary by doing mknod /dev/aztcd0 b 29 0 mkdir /mnt - If this still does not help, see chapters OTHER DRIVES and DEBUGGING. 5. KNOWN PROBLEMS, FUTURE DEVELOPMENTS The driver does not support applications such as photo CD, multi session CD etc.. I do not plan to include the support for that in the driver, because I do not use such applications. If you are interested in that stuff and would like to extend the drivers capability on your own, please contact me, I'll support you as far as I can. The drive status recognition does not work correctly in all cases. Changing a disk or having the door open, when a drive is already mounted, is detected by the Aztech driver itself, but nevertheless causes multiple read attempts by the different layers of the ISO9660-filesystem driver, which finally timeout, so you have to wait quite a little... But isn't it bad style to change a disk in a mounted drive, anyhow ?! The driver uses busy wait in most cases for the drive handshake (macros STEN_LOW and DTEN_LOW). I tested with a 486/DX2 at 66MHz and a Pentium at 60MHz. Whenever you use a much faster machine you are likely to get timeout messages. In that case edit aztcd.h and increase the timeout value AZT_TIMEOUT. For some 'slow' drive commands I implemented waiting with a timer waitqueue (macro STEN_LOW_WAIT). If you get this timeout message, you may also edit aztcd.h and increase the timeout value AZT_STATUS_DELAY. The waitqueue has shown to be a little critical. If you get kernel panic messages, edit aztcd.c and substitute STEN_LOW_WAIT by STEN_LOW. Busy waiting with STEN_LOW is more stable, but also causes CPU overhead. 6. BUG REPORTS Please send detailed bug reports and bug fixes via EMail to zimmerma@rz.fht-esslingen.de Please include a description of your CD-ROM drive type and interface card, the exact firmware message during Linux bootup, the version number of the AZTECH-CDROM-driver and the Linux kernel version. Also a description of your system's other hardware could be of interest, especially microprocessor type, clock frequency, other interface cards such as soundcards, ethernet adapter, game cards etc.. I will try to collect the reports and make the necessary modifications from time to time. I may also come back to you directly with some bug fixes and ask you to do further testing and debugging. Editors of CD-ROMs are invited to send a 'cooperation' copy of their CD-ROMs to the volunteers, who provided the CD-ROM support for Linux. My snail mail address for such 'stuff' is Prof. Dr. W. Zimmermann Fachhochschule fuer Technik Esslingen Fachbereich NT Flandernstrasse 101 D-73732 Esslingen Germany 7. OTHER DRIVES The following drives ORCHID CDS3110, OKANO CDD110 and WEARNES nearly look the same as AZTECH CDA268-01A, especially they seem to use the same command codes. So it was quite simple to make the AZTECH driver work with these drives. Unfortunately I do not have any of these drives available, so I couldn't test it myself. But I've got reports, that it works with ORCHID CDS3110 and Game- Wave32 sound cards and also with WEARNES CDD110 in some different combinations. In some installations, it seems necessary to initialize the drive with the DOS driver before (especially if combined with a sound card) and then do a warm boot (CTRL-ALT-RESET) or start Linux from DOS, e.g. with 'loadlin'. Please give me positive or negative feedback, if you have tried it. Especially you should tell me, how the version string reads during initialization. If you don't succeed, read chapter DEBUGGING. Thanks in advance! Sorry for the inconvenience, but it is difficult to develop for hardware, which you don't have available for testing. So if you like, please help us. 8. DEBUGGING : IF YOU DON'T SUCCEED, TRY THE FOLLOWING -reread the complete README file -make sure, that your drive is hardware configured for transfer mode: polled IRQ: not used DMA: not used Base Address: something like 300, 320 ... You can check this, when you start the DOS driver, which came with your drive. By appropriately configuring the drive and the DOS driver you can check, whether your drive does operate in this mode correctly under DOS. If it does not operate under DOS, it won't under Linux. Make sure the Base Address is configured correctly in aztcd.h, also make sure, that /dev/aztcd0 exists with the correct major number (compare it with the entry in file /usr/include/linux/major.h for the Aztech drive). -insert a CD-ROM and close the tray -cold boot your PC (i.e. via the power on switch or the reset button) -if you start Linux via DOS, e.g. using loadlin, make sure, that the DOS driver for the CD-ROM drive is not loaded (comment out the calling lines in DOS' config.sys!) -look for the aztcd: init message during Linux init and note them exactly -log in as root and do a mount -t iso9660 /dev/aztcd0 /mnt -if you don't succeed in the first time, try several times. Try also to open and close the tray, then mount again. Please note carefully all commands you typed in and the aztcd-messages, which you get. -if you get an 'Aztech CD-ROM init: aborted' message, read the remarks about the version string below. If this does not help, do the same with the following differences -start DOS before; make now sure, that the DOS driver for the CD-ROM is loaded under DOS (i.e. uncomment it again in config.sys) -warm boot your PC (i.e. via CTRL-ALT-DEL) if you have it, you can also start via loadlin (try both). ... Again note all commands and the aztcd-messages. If you see STEN_LOW or STEN_LOW_WAIT error messages, increase the timeout values. If this still does not help, -look in aztcd.c for the lines #if 0 #define AZT_TEST1 ... #endif and substitute '#if 0' by '#if 1'. -recompile your kernel and repeat the above two procedures. You will now get a bundle of debugging messages from the driver. Again note your commands and the appropriate messages. If you have syslogd running, these messages may also be found in syslogd's kernel log file. Nevertheless in some installations syslogd does not yet run, when init() is called, thus look for the aztcd-messages during init, before the login-prompt appears. Then look in aztcd.c, to find out, what happened. The normal calling sequence is: aztcd_init() during Linux bootup procedure init() after doing a 'mount -t iso9660 /dev/aztcd0 /mnt' the normal calling sequence is aztcd_open() -> Status 2c after cold reboot with CDROM or audio CD inserted -> Status 8 after warm reboot with CDROM inserted -> Status 2e after cold reboot with no disk, closed tray -> Status 6e after cold reboot, mount with door open aztUpdateToc() aztGetDiskInfo() aztGetQChannelInfo() repeated several times aztGetToc() aztGetQChannelInfo() repeated several times a list of track informations do_aztcd_request() } azt_transfer() } repeated several times azt_poll } Check, if there is a difference in the calling sequence or the status flags! There are a lot of other messages, eg. the ACMD-command code (defined in aztcd.h), status info from the getAztStatus-command and the state sequence of the finite state machine in azt_poll(). The most important are the status messages, look how they are defined and try to understand, if they make sense in the context where they appear. With a CD-ROM inserted the status should always be 8, except in aztcd_open(). Try to open the tray, insert a audio disk, insert no disk or reinsert the CD-ROM and check, if the status bits change accordingly. The status bits are the most likely point, where the drive manufacturers may implement changes. If you still don't succeed, a good point to start is to look in aztcd.c in function aztcd_init, where the drive should be detected during init. Do the following: -reboot the system with boot parameter 'aztcd=<your base address>,0x79'. With parameter 0x79 most of the drive version detection is bypassed. After that you should see the complete version string including leading and trailing blanks during init. Now adapt the statement if ((result[1]=='A')&&(result[2]=='Z' ...) in aztcd_init() to exactly match the first 3 or 4 letters you have seen. -Another point is the 'smart' card detection feature in aztcd_init(). Normally the CD-ROM drive is ready, when aztcd_init is trying to read the version string and a time consuming ACMD_SOFT_RESET command can be avoided. This is detected by looking, if AFL_OP_OK can be read correctly. If the CD-ROM drive hangs in some unknown state, e.g. because of an error before a warm start or because you first operated under DOS, even the version string may be correct, but the following commands will not. Then change the code in such a way, that the ACMD_SOFT_RESET is issued in any case, by substituting the if-statement 'if ( ...=AFL_OP_OK)' by 'if (1)'. If you succeed, please mail may the exact version string of your drive and the code modifications, you have made together with a short explanation. If you don't succeed, you may mail me the output of the debugging messages. But remember, they are only useful, if they are exact and complete and you describe in detail your hardware setup and what you did (cold/warm reboot, with/without DOS, DOS-driver started/not started, which Linux-commands etc.) 9. TECHNICAL HISTORY OF THE DRIVER The AZTECH-Driver is a rework of the Mitsumi-Driver. Four major items had to be reworked: a) The Mitsumi drive does issue complete status information acknowledging each command, the Aztech drive does only signal that the command was processed. So whenever the complete status information is needed, an extra ACMD_GET_STATUS command is issued. The handshake procedure for the drive can be found in the functions aztSendCmd(), sendAztCmd() and getAztStatus(). b) The Aztech Drive does not have a ACMD_GET_DISK_INFO command, so the necessary info about the number of tracks (firstTrack, lastTrack), disk length etc. has to be read from the TOC in the lead in track (see function aztGetDiskInfo()). c) Whenever data is read from the drive, the Mitsumi drive is started with a command to read an indefinite (0xffffff) number of sectors. When the appropriate number of sectors is read, the drive is stopped by a ACDM_STOP command. This does not work with the Aztech drive. I did not find a way to stop it. The stop and pause commands do only work in AUDIO mode but not in DATA mode. Therefore I had to modify the 'finite state machine' in function azt_poll to only read a certain number of sectors and then start a new read on demand. As I have not completely understood, how the buffer/caching scheme of the Mitsumi driver was implemented, I am not sure, if I have covered all cases correctly, whenever you get timeout messages, the bug is most likely to be in that function azt_poll() around switch(cmd) .... case ACD_S_DATA. d) I did not get information about changing drive mode. So I doubt, that the code around function azt_poll() case AZT_S_MODE does work. In my test I have not been able to switch to reading in raw mode. For reading raw mode, Aztech uses a different command than for cooked mode, which I only have implemen- ted in the ioctl-section but not in the section which is used by the ISO9660- The driver was developed on an AST PC with Intel 486/DX2, 8MB RAM, 340MB IDE hard disk and on an AST PC with Intel Pentium 60MHz, 16MB RAM, 520MB IDE running Linux kernel version 1.0.9 from the LST 1.8 Distribution. The kernel was compiled with gcc.2.5.8. My CD-ROM drive is an Aztech CDA268-01A. My drive says, that it has Firmware Version AZT26801A1.3. It came with a ISA-bus interface card and works with polled I/O without DMA and without interrupts. The code for all other drives was 'remote' tested and debugged by a number of volunteers on the Internet. Points, where I feel that possible problems might be and all points where I did not completely understand the drive's behaviour or trust my own code are marked with /*???*/ in the source code. There are also some parts in the Mitsumi driver, where I did not completely understand their code. 10. ACKNOWLEDGMENTS Without the help of P.Bush, Aztech, who delivered technical information about the Aztech Drive and without the help of E.Moenkeberg, GWDG, who did a great job in analyzing the command structure of various CD-ROM drives, this work would not have been possible. E.Moenkeberg was also a great help in making the software 'kernel ready' and in answering many of the CDROM-related questions in the newsgroups. He really is *the* Linux CD-ROM guru. Thanks also to all the guys on the Internet, who collected valuable technical information about CDROMs. Joe Nardone (nardone@clark.net) was a patient tester even for my first trial, which was more than slow, and made suggestions for code improvement. Especially the 'finite state machine' azt_poll() was rewritten by Joe to get clean C code and avoid the ugly 'gotos', which I copied from mcd.c. Robby Schirmer (schirmer@fmi.uni-passau.de) tested the audio stuff (ioctls) and suggested a lot of patches for them. Joseph Piskor and Peter Nugent were the first users with the ORCHID CD3110 and also were very patient with the problems which occurred. Anybody, who is interested in these items should have a look at 'ftp.gwdg.de', directory 'pub/linux/cdrom' and at 'ftp.cdrom.com', directory 'pub/cdrom'. 11. PROGRAMMING ADD ONs: cdplay.c You can use the ioctl-functions included in aztcd.c in your own programs. As an example on how to do this, you will find a tiny CD Player for audio CDs named 'cdplay.c'. It allows you to play audio CDs. You can play a specified track, pause and resume or skip tracks forward and backwards. If you quit the program without stopping the drive, playing is continued. You can also (mis)use cdplay to read and hexdump data disks. 'cdplay.c' can be found as a separate file in package AZTECH.CDROM.Vxx.tgz. If you don't have it, you can find the code in the APPENDIX of this file, which you should cut out with an editor and store in a separate file 'cdplay.c'. To compile it and make it executable, do gcc -s -Wall -O2 -L/usr/lib cdplay.c -o /usr/local/bin/cdplay # compiles it chmod +755 /usr/local/bin/cdplay # makes it executable ln -s /dev/aztcd0 /dev/cdrom # creates a link (for /usr/lib substitute the top level directory, where your include files reside, and for /usr/local/bin the directory, where you want the executable binary to reside ) You have to set the correct permissions for cdplay *and* for /dev/mcd0 or /dev/aztcd0 in order to use it. Remember, that you should not have /dev/cdrom mounted, when you're playing audio CDs. This program is just a hack for testing the ioctl-functions in aztcd.c, I will not maintain it, so if you run into problems, discard it or have a look into the source code 'cdplay.c'. The program does only contain a minimum of user protection and input error detection. If you use the commands in the wrong order or if you try to read a CD at wrong addresses, you may get error messages or even hang your machine. If you get STEN_LOW, STEN_LOW_WAIT or segment violation error messages when using cdplay, after that, the system might not be stable any more, so you'd better reboot. As the ioctl-functions run in kernel mode, most normal Linux-multitasking protection features do not work. By using uninitialized 'wild' pointers etc., it is easy to write to other users data and program areas, destroy kernel tables etc.. So if you experiment with ioctls as always when you are doing systems programming and kernel hacking, you should have a backup copy of your system in a safe place (and you also should try before, how to restore from a backup copy)! Werner Zimmermann Fachhochschule fuer Technik Esslingen (EMail: zimmerma@rz.fht-esslingen.de) Jan. 8, 1994 --------------------------------------------------------------------------- APPENDIX: Source code of cdplay.c /* Tiny Audio CD Player Copyright 1994, 1995 Werner Zimmermann (zimmerma@rz.fht-esslingen.de) This program originally was written to test the audio functions of the AZTECH.CDROM-driver, but it should work with every CD-ROM drive. Before using it, you should set a symlink from /dev/cdrom to your real CDROM device. The GNU General Public License applies to this program. History: V0.1 W.Zimmermann: First release. Nov. 8, 1994 V0.2 W.Zimmermann: Enhanced functionality. Nov. 9, 1994 V0.3 W.Zimmermann: Additional functions. Nov. 28, 1994 V0.4 W.Zimmermann: fixed some bugs. Dec. 17, 1994 V0.5 W.Zimmermann: clean 'scanf' commands without compiler warnings Jan. 6, 1995 V0.6 W.Zimmermann: volume control (still experimental). Jan. 24, 1995 */ #include <stdio.h> #include <ctype.h> #include <sys/ioctl.h> #include <sys/types.h> #include <fcntl.h> #include <unistd.h> #include <linux/cdrom.h> #include <linux/aztcd.h> void help(void) { printf("Available Commands: STOP s EJECT e QUIT q\n"); printf(" PLAY TRACK t PAUSE p RESUME r\n"); printf(" NEXT TRACK n REPEAT LAST l HELP h\n"); printf(" SUB CHANNEL c TRACK INFO i PLAY AT a\n"); printf(" READ d READ RAW w VOLUME v\n"); } int main(void) { int handle; unsigned char command=' ', ini=0, first=1, last=1; unsigned int cmd, i,j,k, arg1,arg2,arg3; struct cdrom_ti ti; struct cdrom_tochdr tocHdr; struct cdrom_subchnl subchnl; struct cdrom_tocentry entry; struct cdrom_msf msf; union { struct cdrom_msf msf; unsigned char buf[2336]; } azt; struct cdrom_volctrl volctrl; printf("\nMini-Audio CD-Player V0.6 (C) 1994,1995 W.Zimmermann\n"); handle=open("/dev/cdrom",O_RDWR); ioctl(handle,CDROMRESUME); if (handle<=0) { printf("Drive Error: already playing, no audio disk, door open\n"); printf(" or no permission (you must be ROOT in order to use this program)\n"); } else { help(); while (1) { printf("Type command (h = help): "); scanf("%s",&command); switch (command) { case 'e': cmd=CDROMEJECT; ioctl(handle,cmd); break; case 'p': if (!ini) { printf("Command not allowed - play track first\n"); } else { cmd=CDROMPAUSE; if (ioctl(handle,cmd)) printf("Drive Error\n"); } break; case 'r': if (!ini) { printf("Command not allowed - play track first\n"); } else { cmd=CDROMRESUME; if (ioctl(handle,cmd)) printf("Drive Error\n"); } break; case 's': cmd=CDROMPAUSE; if (ioctl(handle,cmd)) printf("Drive error or already stopped\n"); ini=0; cmd=CDROMSTOP; if (ioctl(handle,cmd)) printf("Drive error\n"); ini=0; break; case 't': cmd=CDROMREADTOCHDR; if (ioctl(handle,cmd,&tocHdr)) printf("Drive Error\n"); first=tocHdr.cdth_trk0; last= tocHdr.cdth_trk1; if ((first==0)||(first>last)) { printf ("--could not read TOC\n"); } else { printf("--first track: %d --last track: %d --enter track number: ",first,last); cmd=CDROMPLAYTRKIND; scanf("%i",&arg1); ti.cdti_trk0=arg1; if (ti.cdti_trk0<first) ti.cdti_trk0=first; if (ti.cdti_trk0>last) ti.cdti_trk0=last; ti.cdti_ind0=0; ti.cdti_trk1=last; ti.cdti_ind1=0; if (ioctl(handle,cmd,&ti)) printf("Drive Error\n"); ini=1; } break; case 'n': if (!ini++) { if (ioctl(handle,CDROMREADTOCHDR,&tocHdr)) printf("Drive Error\n"); first=tocHdr.cdth_trk0; last= tocHdr.cdth_trk1; ti.cdti_trk0=first-1; } if ((first==0)||(first>last)) { printf ("--could not read TOC\n"); } else { cmd=CDROMPLAYTRKIND; if (++ti.cdti_trk0 > last) ti.cdti_trk0=last; ti.cdti_ind0=0; ti.cdti_trk1=last; ti.cdti_ind1=0; if (ioctl(handle,cmd,&ti)) printf("Drive Error\n"); ini=1; } break; case 'l': if (!ini++) { if (ioctl(handle,CDROMREADTOCHDR,&tocHdr)) printf("Drive Error\n"); first=tocHdr.cdth_trk0; last= tocHdr.cdth_trk1; ti.cdti_trk0=first+1; } if ((first==0)||(first>last)) { printf ("--could not read TOC\n"); } else { cmd=CDROMPLAYTRKIND; if (--ti.cdti_trk0 < first) ti.cdti_trk0=first; ti.cdti_ind0=0; ti.cdti_trk1=last; ti.cdti_ind1=0; if (ioctl(handle,cmd,&ti)) printf("Drive Error\n"); ini=1; } break; case 'c': subchnl.cdsc_format=CDROM_MSF; if (ioctl(handle,CDROMSUBCHNL,&subchnl)) printf("Drive Error\n"); else { printf("AudioStatus:%s Track:%d Mode:%d MSF=%d:%d:%d\n", \ subchnl.cdsc_audiostatus==CDROM_AUDIO_PLAY ? "PLAYING":"NOT PLAYING",\ subchnl.cdsc_trk,subchnl.cdsc_adr, \ subchnl.cdsc_absaddr.msf.minute, subchnl.cdsc_absaddr.msf.second, \ subchnl.cdsc_absaddr.msf.frame); } break; case 'i': if (!ini) { printf("Command not allowed - play track first\n"); } else { cmd=CDROMREADTOCENTRY; printf("Track No.: "); scanf("%d",&arg1); entry.cdte_track=arg1; if (entry.cdte_track<first) entry.cdte_track=first; if (entry.cdte_track>last) entry.cdte_track=last; entry.cdte_format=CDROM_MSF; if (ioctl(handle,cmd,&entry)) { printf("Drive error or invalid track no.\n"); } else { printf("Mode %d Track, starts at %d:%d:%d\n", \ entry.cdte_adr,entry.cdte_addr.msf.minute, \ entry.cdte_addr.msf.second,entry.cdte_addr.msf.frame); } } break; case 'a': cmd=CDROMPLAYMSF; printf("Address (min:sec:frame) "); scanf("%d:%d:%d",&arg1,&arg2,&arg3); msf.cdmsf_min0 =arg1; msf.cdmsf_sec0 =arg2; msf.cdmsf_frame0=arg3; if (msf.cdmsf_sec0 > 59) msf.cdmsf_sec0 =59; if (msf.cdmsf_frame0> 74) msf.cdmsf_frame0=74; msf.cdmsf_min1=60; msf.cdmsf_sec1=00; msf.cdmsf_frame1=00; if (ioctl(handle,cmd,&msf)) { printf("Drive error or invalid address\n"); } break; #ifdef AZT_PRIVATE_IOCTLS /*not supported by every CDROM driver*/ case 'd': cmd=CDROMREADMODE1; printf("Address (min:sec:frame) "); scanf("%d:%d:%d",&arg1,&arg2,&arg3); azt.msf.cdmsf_min0 =arg1; azt.msf.cdmsf_sec0 =arg2; azt.msf.cdmsf_frame0=arg3; if (azt.msf.cdmsf_sec0 > 59) azt.msf.cdmsf_sec0 =59; if (azt.msf.cdmsf_frame0> 74) azt.msf.cdmsf_frame0=74; if (ioctl(handle,cmd,&azt.msf)) { printf("Drive error, invalid address or unsupported command\n"); } k=0; getchar(); for (i=0;i<128;i++) { printf("%4d:",i*16); for (j=0;j<16;j++) { printf("%2x ",azt.buf[i*16+j]); } for (j=0;j<16;j++) { if (isalnum(azt.buf[i*16+j])) printf("%c",azt.buf[i*16+j]); else printf("."); } printf("\n"); k++; if (k>=20) { printf("press ENTER to continue\n"); getchar(); k=0; } } break; case 'w': cmd=CDROMREADMODE2; printf("Address (min:sec:frame) "); scanf("%d:%d:%d",&arg1,&arg2,&arg3); azt.msf.cdmsf_min0 =arg1; azt.msf.cdmsf_sec0 =arg2; azt.msf.cdmsf_frame0=arg3; if (azt.msf.cdmsf_sec0 > 59) azt.msf.cdmsf_sec0 =59; if (azt.msf.cdmsf_frame0> 74) azt.msf.cdmsf_frame0=74; if (ioctl(handle,cmd,&azt)) { printf("Drive error, invalid address or unsupported command\n"); } k=0; for (i=0;i<146;i++) { printf("%4d:",i*16); for (j=0;j<16;j++) { printf("%2x ",azt.buf[i*16+j]); } for (j=0;j<16;j++) { if (isalnum(azt.buf[i*16+j])) printf("%c",azt.buf[i*16+j]); else printf("."); } printf("\n"); k++; if (k>=20) { getchar(); k=0; } } break; #endif case 'v': cmd=CDROMVOLCTRL; printf("--Channel 0 Left (0-255): "); scanf("%d",&arg1); printf("--Channel 1 Right (0-255): "); scanf("%d",&arg2); volctrl.channel0=arg1; volctrl.channel1=arg2; volctrl.channel2=0; volctrl.channel3=0; if (ioctl(handle,cmd,&volctrl)) { printf("Drive error or unsupported command\n"); } break; case 'q': if (close(handle)) printf("Drive Error: CLOSE\n"); exit(0); case 'h': help(); break; default: printf("unknown command\n"); break; } } } return 0; } |