ref: b10d6e123329a38a29030744bf232ac03387cee5
dir: /plan9/cd_linux.c/
// Quake is a trademark of Id Software, Inc., (c) 1996 Id Software, Inc. All
// rights reserved.
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <sys/file.h>
#include <sys/types.h>
#include <fcntl.h>
#include <string.h>
#include <time.h>
#include <errno.h>
#include <linux/cdrom.h>
#include "../client/client.h"
static qboolean cdValid = false;
static qboolean playing = false;
static qboolean wasPlaying = false;
static qboolean initialized = false;
static qboolean enabled = true;
static qboolean playLooping = false;
static float cdvolume;
static byte remap[100];
static byte playTrack;
static byte maxTrack;
static int cdfile = -1;
//static char cd_dev[64] = "/dev/cdrom";
cvar_t *cd_volume;
cvar_t *cd_nocd;
cvar_t *cd_dev;
void CDAudio_Pause(void);
static void CDAudio_Eject(void)
{
if (cdfile == -1 || !enabled)
return; // no cd init'd
if ( ioctl(cdfile, CDROMEJECT) == -1 )
Com_DPrintf("ioctl cdromeject failed\n");
}
static void CDAudio_CloseDoor(void)
{
if (cdfile == -1 || !enabled)
return; // no cd init'd
if ( ioctl(cdfile, CDROMCLOSETRAY) == -1 )
Com_DPrintf("ioctl cdromclosetray failed\n");
}
static int CDAudio_GetAudioDiskInfo(void)
{
struct cdrom_tochdr tochdr;
cdValid = false;
if ( ioctl(cdfile, CDROMREADTOCHDR, &tochdr) == -1 )
{
Com_DPrintf("ioctl cdromreadtochdr failed\n");
return -1;
}
if (tochdr.cdth_trk0 < 1)
{
Com_DPrintf("CDAudio: no music tracks\n");
return -1;
}
cdValid = true;
maxTrack = tochdr.cdth_trk1;
return 0;
}
void CDAudio_Play(int track, qboolean looping)
{
struct cdrom_tocentry entry;
struct cdrom_ti ti;
if (cdfile == -1 || !enabled)
return;
if (!cdValid)
{
CDAudio_GetAudioDiskInfo();
if (!cdValid)
return;
}
track = remap[track];
if (track < 1 || track > maxTrack)
{
Com_DPrintf("CDAudio: Bad track number %u.\n", track);
return;
}
// don't try to play a non-audio track
entry.cdte_track = track;
entry.cdte_format = CDROM_MSF;
if ( ioctl(cdfile, CDROMREADTOCENTRY, &entry) == -1 )
{
Com_DPrintf("ioctl cdromreadtocentry failed\n");
return;
}
if (entry.cdte_ctrl == CDROM_DATA_TRACK)
{
Com_Printf("CDAudio: track %i is not audio\n", track);
return;
}
if (playing)
{
if (playTrack == track)
return;
CDAudio_Stop();
}
ti.cdti_trk0 = track;
ti.cdti_trk1 = track;
ti.cdti_ind0 = 1;
ti.cdti_ind1 = 99;
if ( ioctl(cdfile, CDROMPLAYTRKIND, &ti) == -1 )
{
Com_DPrintf("ioctl cdromplaytrkind failed\n");
return;
}
if ( ioctl(cdfile, CDROMRESUME) == -1 )
Com_DPrintf("ioctl cdromresume failed\n");
playLooping = looping;
playTrack = track;
playing = true;
if (cd_volume->value == 0.0)
CDAudio_Pause ();
}
void CDAudio_Stop(void)
{
if (cdfile == -1 || !enabled)
return;
if (!playing)
return;
if ( ioctl(cdfile, CDROMSTOP) == -1 )
Com_DPrintf("ioctl cdromstop failed (%d)\n", errno);
wasPlaying = false;
playing = false;
}
void CDAudio_Pause(void)
{
if (cdfile == -1 || !enabled)
return;
if (!playing)
return;
if ( ioctl(cdfile, CDROMPAUSE) == -1 )
Com_DPrintf("ioctl cdrompause failed\n");
wasPlaying = playing;
playing = false;
}
void CDAudio_Resume(void)
{
if (cdfile == -1 || !enabled)
return;
if (!cdValid)
return;
if (!wasPlaying)
return;
if ( ioctl(cdfile, CDROMRESUME) == -1 )
Com_DPrintf("ioctl cdromresume failed\n");
playing = true;
}
static void CD_f (void)
{
char *command;
int ret;
int n;
if (Cmd_Argc() < 2)
return;
command = Cmd_Argv (1);
if (Q_strcasecmp(command, "on") == 0)
{
enabled = true;
return;
}
if (Q_strcasecmp(command, "off") == 0)
{
if (playing)
CDAudio_Stop();
enabled = false;
return;
}
if (Q_strcasecmp(command, "reset") == 0)
{
enabled = true;
if (playing)
CDAudio_Stop();
for (n = 0; n < 100; n++)
remap[n] = n;
CDAudio_GetAudioDiskInfo();
return;
}
if (Q_strcasecmp(command, "remap") == 0)
{
ret = Cmd_Argc() - 2;
if (ret <= 0)
{
for (n = 1; n < 100; n++)
if (remap[n] != n)
Com_Printf(" %u -> %u\n", n, remap[n]);
return;
}
for (n = 1; n <= ret; n++)
remap[n] = atoi(Cmd_Argv (n+1));
return;
}
if (Q_strcasecmp(command, "close") == 0)
{
CDAudio_CloseDoor();
return;
}
if (!cdValid)
{
CDAudio_GetAudioDiskInfo();
if (!cdValid)
{
Com_Printf("No CD in player.\n");
return;
}
}
if (Q_strcasecmp(command, "play") == 0)
{
CDAudio_Play((byte)atoi(Cmd_Argv (2)), false);
return;
}
if (Q_strcasecmp(command, "loop") == 0)
{
CDAudio_Play((byte)atoi(Cmd_Argv (2)), true);
return;
}
if (Q_strcasecmp(command, "stop") == 0)
{
CDAudio_Stop();
return;
}
if (Q_strcasecmp(command, "pause") == 0)
{
CDAudio_Pause();
return;
}
if (Q_strcasecmp(command, "resume") == 0)
{
CDAudio_Resume();
return;
}
if (Q_strcasecmp(command, "eject") == 0)
{
if (playing)
CDAudio_Stop();
CDAudio_Eject();
cdValid = false;
return;
}
if (Q_strcasecmp(command, "info") == 0)
{
Com_Printf("%u tracks\n", maxTrack);
if (playing)
Com_Printf("Currently %s track %u\n", playLooping ? "looping" : "playing", playTrack);
else if (wasPlaying)
Com_Printf("Paused %s track %u\n", playLooping ? "looping" : "playing", playTrack);
Com_Printf("Volume is %f\n", cdvolume);
return;
}
}
void CDAudio_Update(void)
{
struct cdrom_subchnl subchnl;
static time_t lastchk;
if (cdfile == -1 || !enabled)
return;
if (cd_volume && cd_volume->value != cdvolume)
{
if (cdvolume)
{
Cvar_SetValue ("cd_volume", 0.0);
cdvolume = cd_volume->value;
CDAudio_Pause ();
}
else
{
Cvar_SetValue ("cd_volume", 1.0);
cdvolume = cd_volume->value;
CDAudio_Resume ();
}
}
if (playing && lastchk < time(NULL)) {
lastchk = time(NULL) + 2; //two seconds between chks
subchnl.cdsc_format = CDROM_MSF;
if (ioctl(cdfile, CDROMSUBCHNL, &subchnl) == -1 ) {
Com_DPrintf("ioctl cdromsubchnl failed\n");
playing = false;
return;
}
if (subchnl.cdsc_audiostatus != CDROM_AUDIO_PLAY &&
subchnl.cdsc_audiostatus != CDROM_AUDIO_PAUSED) {
playing = false;
if (playLooping)
CDAudio_Play(playTrack, true);
}
}
}
int CDAudio_Init(void)
{
int i;
cvar_t *cv;
extern uid_t saved_euid;
cv = Cvar_Get ("nocdaudio", "0", CVAR_NOSET);
if (cv->value)
return -1;
cd_nocd = Cvar_Get ("cd_nocd", "0", CVAR_ARCHIVE );
if ( cd_nocd->value)
return -1;
cd_volume = Cvar_Get ("cd_volume", "1", CVAR_ARCHIVE);
cd_dev = Cvar_Get("cd_dev", "/dev/cdrom", CVAR_ARCHIVE);
seteuid(saved_euid);
cdfile = open(cd_dev->string, O_RDONLY);
seteuid(getuid());
if (cdfile == -1) {
Com_Printf("CDAudio_Init: open of \"%s\" failed (%i)\n", cd_dev->string, errno);
cdfile = -1;
return -1;
}
for (i = 0; i < 100; i++)
remap[i] = i;
initialized = true;
enabled = true;
if (CDAudio_GetAudioDiskInfo())
{
Com_Printf("CDAudio_Init: No CD in player.\n");
cdValid = false;
}
Cmd_AddCommand ("cd", CD_f);
Com_Printf("CD Audio Initialized\n");
return 0;
}
void CDAudio_Activate (qboolean active)
{
if (active)
CDAudio_Resume ();
else
CDAudio_Pause ();
}
void CDAudio_Shutdown(void)
{
if (!initialized)
return;
CDAudio_Stop();
close(cdfile);
cdfile = -1;
}