704 lines
16 KiB
C
704 lines
16 KiB
C
/*
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* Compact Disc Control Utility by Serge V. Vakulenko <vak@cronyx.ru>.
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* Based on the non-X based CD player by Jean-Marc Zucconi and
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* Andrey A. Chernov.
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*
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* $Id$
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <errno.h>
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#include <sys/file.h>
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#include <sys/cdio.h>
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#include <sys/ioctl.h>
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#define VERSION "2.0"
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/*
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* Audio Status Codes
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*/
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#define ASTS_INVALID 0x00 /* Audio status byte not valid */
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#define ASTS_PLAYING 0x11 /* Audio play operation in progress */
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#define ASTS_PAUSED 0x12 /* Audio play operation paused */
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#define ASTS_COMPLETED 0x13 /* Audio play operation successfully completed */
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#define ASTS_ERROR 0x14 /* Audio play operation stopped due to error */
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#define ASTS_VOID 0x15 /* No current audio status to return */
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struct cmdtab {
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int command;
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char *name;
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char *args;
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} cmdtab[] = {
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#define CMD_DEBUG 1
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{ CMD_DEBUG, "Debug", "on | off", },
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#define CMD_EJECT 2
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{ CMD_EJECT, "Eject", "", },
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#define CMD_HELP 3
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{ CMD_HELP, "?", 0, },
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{ CMD_HELP, "Help", "", },
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#define CMD_INFO 4
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{ CMD_INFO, "I", 0, },
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{ CMD_INFO, "Info", "", },
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#define CMD_INJECT 5
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{ CMD_INJECT, "INJect", "", },
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#define CMD_PAUSE 6
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{ CMD_PAUSE, "PAuse", "", },
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#define CMD_PLAY 7
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{ CMD_PLAY, "P", 0, },
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{ CMD_PLAY, "Play", "min1:sec1[.fr1] [min2:sec2[.fr2]]", },
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{ CMD_PLAY, "Play", "track1[.index1] [track2.[index2]]", },
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{ CMD_PLAY, "Play", "[#block [len]]", },
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#define CMD_QUIT 8
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{ CMD_QUIT, "Quit", "", },
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#define CMD_RESET 9
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{ CMD_RESET, "RESEt", "", },
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#define CMD_RESUME 10
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{ CMD_RESUME, "R", 0, },
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{ CMD_RESUME, "Resume", "", },
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#define CMD_SET 11
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{ CMD_SET, "SEt", "msf | lba", },
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#define CMD_STATUS 12
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{ CMD_STATUS, "S", 0, },
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{ CMD_STATUS, "Status", "", },
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#define CMD_STOP 13
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{ CMD_STOP, "STOp", "", },
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#define CMD_VOLUME 14
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{ CMD_VOLUME, "Volume", "<l> <r> | left | right | mute | mono | stereo", },
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{ 0, 0, },
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};
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struct cd_toc_entry toc_buffer[100];
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char *cdname;
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int fd = -1;
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int verbose = 1;
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int msf = 1;
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extern char *optarg;
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extern int optind;
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int setvol (int, int);
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int read_toc_entrys (int);
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int play_msf (int, int, int, int, int, int);
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int play_track (int, int, int, int);
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int get_vol (int *, int *);
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int status (int *, int *, int *, int *);
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int open_cd (void);
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int play (char *arg);
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int info (char *arg);
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int pstatus (char *arg);
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char *input (int*);
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void prtrack (struct cd_toc_entry *e, int lastflag);
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void lba2msf (int lba, u_char *m, u_char *s, u_char *f);
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int msf2lba (u_char m, u_char s, u_char f);
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int play_blocks (int blk, int len);
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int run (int cmd, char *arg);
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char *parse (char *buf, int *cmd);
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extern int errno;
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void help ()
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{
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struct cmdtab *c;
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for (c=cmdtab; c->name; ++c) {
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if (! c->args)
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continue;
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printf ("\t%s", c->name);
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if (*c->args)
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printf (" %s", c->args);
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printf ("\n");
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}
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}
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void usage ()
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{
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printf ("Usage:\n\tcdcontrol [ -vs ] [ -f disc ] [ command args... ]\n");
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printf ("Options:\n");
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printf ("\t-v - verbose mode\n");
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printf ("\t-s - silent mode\n");
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printf ("\t-f disc - device name such as /dev/cd0c\n");
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printf ("\tDISC - shell variable with device name\n");
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printf ("Commands:\n");
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help ();
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exit (1);
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}
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int main (int argc, char **argv)
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{
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int cmd;
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char *arg;
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cdname = getenv ("DISC");
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if (! cdname)
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cdname = getenv ("CDPLAY");
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for (;;) {
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switch (getopt (argc, argv, "svhf:")) {
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case EOF:
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break;
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case 's':
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verbose = 0;
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continue;
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case 'v':
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verbose = 2;
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continue;
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case 'f':
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cdname = optarg;
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continue;
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case 'h':
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default:
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usage ();
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}
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break;
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}
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argc -= optind;
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argv += optind;
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if (argc > 0 && strcasecmp (*argv, "help") == 0)
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usage ();
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if (! cdname) {
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fprintf (stderr, "No CD device name specified.\n");
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usage ();
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}
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if (argc > 0) {
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char buf[80], *p;
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int len;
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for (p=buf; argc-- > 0; ++argv) {
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len = strlen (*argv);
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if (p + len >= buf + sizeof (buf) - 1)
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usage ();
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if (p > buf)
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*p++ = ' ';
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strcpy (p, *argv);
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p += len;
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}
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*p = 0;
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arg = parse (buf, &cmd);
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return run (cmd, arg);
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}
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if (verbose == 1)
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verbose = isatty (0);
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if (verbose) {
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printf ("Compact Disc Control Utility, Version %s\n", VERSION);
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printf ("Type `?' for command list\n\n");
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}
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for (;;) {
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arg = input (&cmd);
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if (run (cmd, arg) < 0) {
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if (verbose)
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perror ("cdcontrol");
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close (fd);
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fd = -1;
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}
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fflush (stdout);
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}
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}
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int run (int cmd, char *arg)
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{
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int l, r, rc;
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switch (cmd) {
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case CMD_QUIT:
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exit (0);
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default:
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case CMD_HELP:
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help ();
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return (0);
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case CMD_INFO:
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if (fd<0 && ! open_cd ()) return (0);
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return info (arg);
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case CMD_STATUS:
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if (fd<0 && ! open_cd ()) return (0);
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return pstatus (arg);
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case CMD_PAUSE:
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if (fd<0 && ! open_cd ()) return (0);
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return ioctl (fd, CDIOCPAUSE);
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case CMD_RESUME:
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if (fd<0 && ! open_cd ()) return (0);
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return ioctl (fd, CDIOCRESUME);
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case CMD_STOP:
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if (fd<0 && ! open_cd ()) return (0);
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return ioctl (fd, CDIOCSTOP);
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case CMD_RESET:
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if (fd<0 && ! open_cd ()) return (0);
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rc = ioctl (fd, CDIOCRESET);
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if (rc < 0)
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return rc;
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close(fd);
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fd = -1;
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return (0);
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case CMD_DEBUG:
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if (fd<0 && ! open_cd ()) return (0);
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if (strcasecmp (arg, "on") == 0)
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return ioctl (fd, CDIOCSETDEBUG);
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if (strcasecmp (arg, "off") == 0)
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return ioctl (fd, CDIOCCLRDEBUG);
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printf ("Invalid command arguments\n");
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return (0);
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case CMD_EJECT:
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if (fd<0 && ! open_cd ()) return (0);
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(void) ioctl (fd, CDIOCALLOW);
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rc = ioctl (fd, CDIOCEJECT);
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if (rc < 0)
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return (rc);
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return (0);
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case CMD_INJECT:
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if (fd<0 && ! open_cd ()) return (0);
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rc = ioctl (fd, CDIOCCLOSE);
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if (rc < 0)
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return (rc);
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close(fd);
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fd = -1;
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return (0);
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case CMD_PLAY:
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if (fd<0 && ! open_cd ()) return (0);
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return play (arg);
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case CMD_SET:
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if (strcasecmp (arg, "msf") == 0)
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msf = 1;
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else if (strcasecmp (arg, "lba") == 0)
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msf = 0;
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else
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printf ("Invalid command arguments\n");
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return (0);
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case CMD_VOLUME:
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if (fd<0 && ! open_cd ()) return (0);
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if (strcasecmp (arg, "left") == 0)
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return ioctl (fd, CDIOCSETLEFT);
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else if (strcasecmp (arg, "right") == 0)
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return ioctl (fd, CDIOCSETRIGHT);
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else if (strcasecmp (arg, "mute") == 0)
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return ioctl (fd, CDIOCSETMUTE);
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else if (strcasecmp (arg, "mono") == 0)
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return ioctl (fd, CDIOCSETMONO);
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else if (strcasecmp (arg, "stereo") == 0)
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return ioctl (fd, CDIOCSETSTERIO);
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if (2 != sscanf (arg, "%d %d", &l, &r)) {
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printf ("Invalid command arguments\n");
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return (0);
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}
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return setvol (l, r);
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}
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}
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int play (char *arg)
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{
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struct ioc_toc_header h;
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int rc, n, start, end = 0, istart = 1, iend = 1;
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rc = ioctl (fd, CDIOREADTOCHEADER, &h);
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if (rc < 0)
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return (rc);
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n = h.ending_track - h.starting_track + 1;
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rc = read_toc_entrys ((n + 1) * sizeof (struct cd_toc_entry));
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if (rc < 0)
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return (rc);
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if (! *arg)
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/*
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* Play the whole disc
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*/
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return play_blocks (0, msf2lba (toc_buffer[n].addr.msf.minute,
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toc_buffer[n].addr.msf.second,
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toc_buffer[n].addr.msf.frame));
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if (strchr (arg, '#')) {
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/*
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* Play block #blk [ len ]
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*/
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int blk, len = 0;
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if (2 != sscanf (arg, "#%d%d", &blk, &len) &&
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1 != sscanf (arg, "#%d", &blk)) {
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err: printf ("Invalid command arguments\n");
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return (0);
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}
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if (len == 0)
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len = msf2lba (toc_buffer[n].addr.msf.minute,
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toc_buffer[n].addr.msf.second,
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toc_buffer[n].addr.msf.frame) - blk;
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return play_blocks (blk, len);
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}
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if (strchr (arg, ':')) {
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/*
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* Play MSF m1:s1 [ .f1 ] [ m2:s2 [ .f2 ] ]
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*/
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int m1, m2 = 0, s1, s2 = 0, f1 = 0, f2 = 0;
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if (6 != sscanf (arg, "%d:%d.%d%d:%d.%d", &m1, &s1, &f1, &m2, &s2, &f2) &&
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5 != sscanf (arg, "%d:%d.%d%d:%d", &m1, &s1, &f1, &m2, &s2) &&
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5 != sscanf (arg, "%d:%d%d:%d.%d", &m1, &s1, &m2, &s2, &f2) &&
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3 != sscanf (arg, "%d:%d.%d", &m1, &s1, &f1) &&
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4 != sscanf (arg, "%d:%d%d:%d", &m1, &s1, &m2, &s2) &&
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2 != sscanf (arg, "%d:%d", &m1, &s1))
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goto err;
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if (m2 == 0) {
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m2 = toc_buffer[n].addr.msf.minute;
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s2 = toc_buffer[n].addr.msf.second;
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f2 = toc_buffer[n].addr.msf.frame;
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}
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return play_msf (m1, s1, f1, m2, s2, f2);
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}
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/*
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* Play track trk1 [ .idx1 ] [ trk2 [ .idx2 ] ]
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*/
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if (4 != sscanf (arg, "%d.%d%d.%d", &start, &istart, &end, &iend) &&
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3 != sscanf (arg, "%d.%d%d", &start, &istart, &end) &&
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3 != sscanf (arg, "%d%d.%d", &start, &end, &iend) &&
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2 != sscanf (arg, "%d.%d", &start, &istart) &&
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2 != sscanf (arg, "%d%d", &start, &end) &&
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1 != sscanf (arg, "%d", &start))
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goto err;
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if (end == 0)
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end = n;
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return play_track (start, istart, end, iend);
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}
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char *strstatus (int sts)
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{
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switch (sts) {
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case ASTS_INVALID: return ("invalid");
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case ASTS_PLAYING: return ("playing");
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case ASTS_PAUSED: return ("paused");
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case ASTS_COMPLETED: return ("completed");
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case ASTS_ERROR: return ("error");
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case ASTS_VOID: return ("void");
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default: return ("??");
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}
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}
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int pstatus (char *arg)
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{
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struct ioc_vol v;
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struct ioc_read_subchannel ss;
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struct cd_sub_channel_info data;
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int rc, trk, m, s, f;
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rc = status (&trk, &m, &s, &f);
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if (rc >= 0)
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if (verbose)
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printf ("Audio status = %d<%s>, current track = %d, current position = %d:%02d.%02d\n",
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rc, strstatus (rc), trk, m, s, f);
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else
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printf ("%d %d %d:%02d.%02d\n", rc, trk, m, s, f);
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else
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printf ("No current status info available\n");
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bzero (&ss, sizeof (ss));
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ss.data = &data;
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ss.data_len = sizeof (data);
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ss.address_format = msf ? CD_MSF_FORMAT : CD_LBA_FORMAT;
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ss.data_format = CD_MEDIA_CATALOG;
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rc = ioctl (fd, CDIOCREADSUBCHANNEL, (char *) &ss);
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if (rc >= 0) {
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printf("Media catalog is %sactive\n",
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ss.data->what.media_catalog.mc_valid ? "": "in");
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} else
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printf("No media catalog info available\n");
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rc = ioctl (fd, CDIOCGETVOL, &v);
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if (rc >= 0)
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if (verbose)
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printf ("Left volume = %d, right volume = %d\n",
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v.vol[0], v.vol[1]);
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else
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printf ("%d %d\n", v.vol[0], v.vol[1]);
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else
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printf ("No volume level info available\n");
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return(0);
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}
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int info (char *arg)
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{
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struct ioc_toc_header h;
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int rc, i, n;
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rc = ioctl (fd, CDIOREADTOCHEADER, &h);
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if (rc >= 0) {
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if (verbose)
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printf ("Starting track = %d, ending track = %d, TOC size = %d bytes\n",
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h.starting_track, h.ending_track, h.len);
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else
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printf ("%d %d %d\n", h.starting_track,
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h.ending_track, h.len);
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} else {
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perror ("getting toc header");
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return (rc);
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}
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n = h.ending_track - h.starting_track + 1;
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rc = read_toc_entrys ((n + 1) * sizeof (struct cd_toc_entry));
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if (rc < 0)
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return (rc);
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if (verbose) {
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printf ("track start duration block length type\n");
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printf ("-------------------------------------------------\n");
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}
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for (i = 0; i < n; i++) {
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printf ("%5d ", toc_buffer[i].track);
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prtrack (toc_buffer + i, 0);
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}
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printf ("%5d ", toc_buffer[n].track);
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prtrack (toc_buffer + n, 1);
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return (0);
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}
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void lba2msf (int lba, u_char *m, u_char *s, u_char *f)
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{
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lba += 150; /* block start offset */
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lba &= 0xffffff; /* negative lbas use only 24 bits */
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*m = lba / (60 * 75);
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lba %= (60 * 75);
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*s = lba / 75;
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*f = lba % 75;
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}
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int msf2lba (u_char m, u_char s, u_char f)
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{
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return (((m * 60) + s) * 75 + f) - 150;
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}
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void prtrack (struct cd_toc_entry *e, int lastflag)
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{
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int block, next, len;
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u_char m, s, f;
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if (msf) {
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/* Print track start */
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printf ("%2d:%02d.%02d ", e->addr.msf.minute,
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e->addr.msf.second, e->addr.msf.frame);
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block = msf2lba (e->addr.msf.minute, e->addr.msf.second,
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e->addr.msf.frame);
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} else {
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block = ntohl(e->addr.lba);
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lba2msf(block, &m, &s, &f);
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/* Print track start */
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printf ("%2d:%02d.%02d ", m, s, f);
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}
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if (lastflag) {
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/* Last track -- print block */
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printf (" - %6d - -\n", block);
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return;
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}
|
|
|
|
if (msf)
|
|
next = msf2lba (e[1].addr.msf.minute, e[1].addr.msf.second,
|
|
e[1].addr.msf.frame);
|
|
else
|
|
next = ntohl(e[1].addr.lba);
|
|
len = next - block;
|
|
lba2msf (len, &m, &s, &f);
|
|
|
|
/* Print duration, block, length, type */
|
|
printf ("%2d:%02d.%02d %6d %6d %5s\n", m, s, f, block, len,
|
|
e->control & 4 ? "data" : "audio");
|
|
}
|
|
|
|
int play_track (int tstart, int istart, int tend, int iend)
|
|
{
|
|
struct ioc_play_track t;
|
|
|
|
t.start_track = tstart;
|
|
t.start_index = istart;
|
|
t.end_track = tend;
|
|
t.end_index = iend;
|
|
return ioctl (fd, CDIOCPLAYTRACKS, &t);
|
|
}
|
|
|
|
int play_blocks (int blk, int len)
|
|
{
|
|
struct ioc_play_blocks t;
|
|
|
|
t.blk = blk;
|
|
t.len = len;
|
|
return ioctl (fd, CDIOCPLAYBLOCKS, &t);
|
|
}
|
|
|
|
int setvol (int l, int r)
|
|
{
|
|
struct ioc_vol v;
|
|
|
|
v.vol[0] = l;
|
|
v.vol[1] = r;
|
|
v.vol[2] = 0;
|
|
v.vol[3] = 0;
|
|
return ioctl (fd, CDIOCSETVOL, &v);
|
|
}
|
|
|
|
int read_toc_entrys (int len)
|
|
{
|
|
struct ioc_read_toc_entry t;
|
|
|
|
t.address_format = msf ? CD_MSF_FORMAT : CD_LBA_FORMAT;
|
|
t.starting_track = 0;
|
|
t.data_len = len;
|
|
t.data = toc_buffer;
|
|
return ioctl (fd, CDIOREADTOCENTRYS, (char *) &t);
|
|
}
|
|
|
|
int play_msf (int start_m, int start_s, int start_f,
|
|
int end_m, int end_s, int end_f)
|
|
{
|
|
struct ioc_play_msf a;
|
|
|
|
a.start_m = start_m;
|
|
a.start_s = start_s;
|
|
a.start_f = start_f;
|
|
a.end_m = end_m;
|
|
a.end_s = end_s;
|
|
a.end_f = end_f;
|
|
return ioctl (fd, CDIOCPLAYMSF, (char *) &a);
|
|
}
|
|
|
|
int status (int *trk, int *min, int *sec, int *frame)
|
|
{
|
|
struct ioc_read_subchannel s;
|
|
struct cd_sub_channel_info data;
|
|
u_char mm, ss, ff;
|
|
|
|
bzero (&s, sizeof (s));
|
|
s.data = &data;
|
|
s.data_len = sizeof (data);
|
|
s.address_format = msf ? CD_MSF_FORMAT : CD_LBA_FORMAT;
|
|
s.data_format = CD_CURRENT_POSITION;
|
|
if (ioctl (fd, CDIOCREADSUBCHANNEL, (char *) &s) < 0)
|
|
return -1;
|
|
*trk = s.data->what.position.track_number;
|
|
if (msf) {
|
|
*min = s.data->what.position.reladdr.msf.minute;
|
|
*sec = s.data->what.position.reladdr.msf.second;
|
|
*frame = s.data->what.position.reladdr.msf.frame;
|
|
} else {
|
|
lba2msf(ntohl(s.data->what.position.reladdr.lba),
|
|
&mm, &ss, &ff);
|
|
*min = mm;
|
|
*sec = ss;
|
|
*frame = ff;
|
|
}
|
|
return s.data->header.audio_status;
|
|
}
|
|
|
|
char *input (int *cmd)
|
|
{
|
|
static char buf[80];
|
|
char *p;
|
|
|
|
do {
|
|
if (verbose)
|
|
fprintf (stderr, "cd> ");
|
|
if (! fgets (buf, sizeof (buf), stdin)) {
|
|
*cmd = CMD_QUIT;
|
|
return 0;
|
|
}
|
|
p = parse (buf, cmd);
|
|
} while (! p);
|
|
return (p);
|
|
}
|
|
|
|
char *parse (char *buf, int *cmd)
|
|
{
|
|
struct cmdtab *c;
|
|
char *p;
|
|
int len;
|
|
|
|
for (p=buf; *p; ++p)
|
|
if (*p == '\t')
|
|
*p = ' ';
|
|
else if (*p == '\n')
|
|
*p = 0;
|
|
|
|
for (p=buf; *p; ++p)
|
|
if (*p == ' ') {
|
|
*p++ = 0;
|
|
break;
|
|
}
|
|
while (*p == ' ')
|
|
++p;
|
|
|
|
len = strlen (buf);
|
|
if (! len)
|
|
return (0);
|
|
*cmd = -1;
|
|
for (c=cmdtab; c->name; ++c) {
|
|
/* Try short command form. */
|
|
if (! c->args && len == strlen (c->name) &&
|
|
strncasecmp (buf, c->name, len) == 0) {
|
|
*cmd = c->command;
|
|
break;
|
|
}
|
|
|
|
/* Try long form. */
|
|
if (strncasecmp (buf, c->name, len) != 0)
|
|
continue;
|
|
|
|
/* Check inambiguity. */
|
|
if (*cmd != -1 && *cmd != c->command) {
|
|
fprintf (stderr, "Ambiguous command\n");
|
|
return (0);
|
|
}
|
|
*cmd = c->command;
|
|
}
|
|
if (*cmd == -1) {
|
|
fprintf (stderr, "Invalid command, enter ``help'' for command list\n");
|
|
return (0);
|
|
}
|
|
return p;
|
|
}
|
|
|
|
int open_cd ()
|
|
{
|
|
char devbuf[80];
|
|
|
|
if (fd > -1)
|
|
return (1);
|
|
if (*cdname == '/')
|
|
strcpy (devbuf, cdname);
|
|
else if (*cdname == 'r')
|
|
sprintf (devbuf, "/dev/%s", cdname);
|
|
else
|
|
sprintf (devbuf, "/dev/r%s", cdname);
|
|
fd = open (devbuf, O_RDONLY);
|
|
if (fd < 0 && errno == ENOENT) {
|
|
strcat (devbuf, "c");
|
|
fd = open (devbuf, O_RDONLY);
|
|
}
|
|
if (fd < 0) {
|
|
if (errno != ENXIO) {
|
|
perror (devbuf);
|
|
exit (1);
|
|
}
|
|
/* open says 'Device not configured' if no cd in */
|
|
fprintf (stderr, "open: No CD in\n");
|
|
return (0);
|
|
}
|
|
return (1);
|
|
}
|