/*
* $Id: plat_sun.c,v 1.9 1999/05/28 03:35:54 dirk Exp $
*
* This file is part of WorkMan, the civilized CD player library
* (c) 1991-1997 by Steven Grimm (original author)
* (c) by Dirk Försterling (current 'author' = maintainer)
* The maintainer can be contacted by his e-mail address:
* milliByte@DeathsDoor.com
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*
* Sun-specific drive control routines.
*/
#ifdef sun
static char plat_sun_id[] = "$Id: plat_sun.c,v 1.9 1999/05/28 03:35:54 dirk Exp $";
#include <errno.h>
#include <stdio.h>
#include <sys/types.h>
#include <fcntl.h>
#include <string.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include "include/wm_config.h"
#include "include/wm_helpers.h"
#include "include/wm_cdrom.h"
#include <ustat.h>
#include <unistd.h>
#include <signal.h>
#ifdef solbourne
# include <mfg/dklabel.h>
# include <mfg/dkio.h>
# include <sys/unistd.h>
# include <dev/srvar.h>
#else /* A real Sun */
# ifdef SYSV
# include <poll.h>
# include <stdlib.h>
# include <sys/cdio.h>
# include <sys/socket.h>
# include <sys/scsi/impl/uscsi.h>
# include "include/wm_cdda.h"
# else
# include <sys/buf.h>
# include <sun/dkio.h>
# include <scsi/targets/srdef.h>
# include <scsi/impl/uscsi.h>
# include <scsi/generic/commands.h>
# endif
#endif
#include "include/wm_struct.h"
#define WM_MSG_CLASS WM_MSG_CLASS_PLATFORM
int min_volume = 0;
int max_volume = 255;
extern char *cd_device, *cddaslave_path;
extern int intermittent_dev;
int cdda_slave = -1;
int current_end;
#if defined(SYSV) && defined(SIGTHAW)
#ifdef __GNUC__
void sigthawinit(void) __attribute__ ((constructor));
#else
#pragma init(sigthawinit)
#endif /* GNUC */
static int last_left, last_right;
static struct wm_drive *thecd;
static void thawme(int sig)
{
change_mode(NULL, WM_CDM_STOPPED, NULL);
codec_init();
if( thecd )
gen_set_volume(thecd, last_left, last_right);
} /* thawme */
void sigthawinit( void )
{
struct sigaction sa;
sa.sa_handler = thawme;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
sigaction(SIGTHAW, &sa, NULL);
}
#endif /* SYSV && SIGTHAW */
/*
* find_cdrom
*
* Determine the name of the CD-ROM device.
*
* Use the first of /vol/dev/aliases/cdrom0, /dev/rdsk/c0t6d0s2, and /dev/rsr0
* that exists. (Check for /vol/dev/aliases, not cdrom0, since it won't be
* there if there's no CD in the drive.) This is done so a single SunOS 4.x
* binary can be used on any 4.x or higher Sun system.
*/
void
find_cdrom( void )
{
if (access("/vol/dev/aliases", X_OK) == 0)
{
/* Volume manager. Device might not be there. */
intermittent_dev = 1;
/* If vold is running us, it'll tell us the device name. */
cd_device = getenv("VOLUME_DEVICE");
if (cd_device == NULL)
cd_device = "/vol/dev/aliases/cdrom0";
}
else if (access("/dev/rdsk/c0t6d0s2", F_OK) == 0)
{
/* Solaris 2.x w/o volume manager. */
cd_device = "/dev/rdsk/c0t6d0s2";
}
else if (access("/dev/rcd0", F_OK) == 0)
{
cd_device = "/dev/rcd0";
}
else if (access("/dev/rsr0", F_OK) == 0)
cd_device = "/dev/rsr0";
else
{
fprintf(stderr, "Couldn't find a CD device!\n");
exit(1);
}
}
/*
* Wait for an acknowledgement from the CDDA slave.
*/
static int
get_ack(int fd)
{
#if defined(BUILD_CDDA) && defined(WMCDDA_DONE) /* { */
struct cdda_block blk;
do
if (read(fd, &blk, sizeof(blk)) <= 0)
return (0);
while (blk.status != WMCDDA_ACK);
#endif /* } */
return (1);
}
/*
* Initialize the drive. A no-op for the generic driver.
*/
int
gen_init( struct wm_drive *d )
{
codec_init();
return (0);
}
/*
* Try to initialize the CDDA slave. Returns 0 on error.
*/
int
cdda_init( struct wm_drive *d )
{
#if defined(BUILD_CDDA) && defined(WMCDDA_DONE) /* { */
int slavefds[2];
if (cdda_slave > -1)
return (1);
if (socketpair(AF_UNIX, SOCK_STREAM, 0, slavefds))
{
perror("socketpair");
return (0);
}
switch (fork()) {
case 0:
close(slavefds[0]);
dup2(slavefds[1], 1);
dup2(slavefds[1], 0);
close(slavefds[1]);
close(d->fd);
/* Try the default path first. */
execl(cddaslave_path, cddaslave_path, cd_device, NULL);
/* Search $PATH if that didn't work. */
execlp("cddaslave", "cddaslave", cd_device, NULL);
perror(cddaslave_path);
exit(1);
case -1:
close(slavefds[0]);
close(slavefds[1]);
perror("fork");
return (0);
}
close(slavefds[1]);
cdda_slave = slavefds[0];
if (!get_ack(cdda_slave))
{
cdda_slave = -1;
codec_start();
return (0);
}
return (1);
#else /* BUILD_CDDA } { */
/*
* If we're not building CDDA support, don't even bother trying.
*/
return (0);
#endif
}
/*
* Turn off the CDDA slave.
*/
void
cdda_kill( struct wm_drive *d )
{
if (cdda_slave > -1)
{
write(cdda_slave, "Q", 1);
get_ack(cdda_slave);
wait(NULL);
cdda_slave = -1;
codec_start();
}
}
/*
* Get the number of tracks on the CD.
*/
int
gen_get_trackcount( struct wm_drive *d, int *tracks )
{
struct cdrom_tochdr hdr;
if (ioctl(d->fd, CDROMREADTOCHDR, &hdr))
return (-1);
*tracks = hdr.cdth_trk1;
return (0);
}
/*
* Get the start time and mode (data or audio) of a track.
*/
int
gen_get_trackinfo( struct wm_drive *d, int track, int *data, int *startframe)
{
struct cdrom_tocentry entry;
entry.cdte_track = track;
entry.cdte_format = CDROM_MSF;
if (ioctl(d->fd, CDROMREADTOCENTRY, &entry))
return (-1);
*startframe = entry.cdte_addr.msf.minute * 60 * 75 +
entry.cdte_addr.msf.second * 75 +
entry.cdte_addr.msf.frame;
*data = entry.cdte_ctrl & CDROM_DATA_TRACK ? 1 : 0;
return (0);
}
/*
* Get the number of frames on the CD.
*/
int
gen_get_cdlen(struct wm_drive *d, int *frames )
{
int tmp;
return (gen_get_trackinfo(d, CDROM_LEADOUT, &tmp, frames));
}
/* Alarm signal handler. */
static void do_nothing( int x ) { x++; }
/*
* Get the current status of the drive: the current play mode, the absolute
* position from start of disc (in frames), and the current track and index
* numbers if the CD is playing or paused.
*/
int
gen_get_drive_status( struct wm_drive *d,
enum wm_cd_modes oldmode,
enum wm_cd_modes *mode,
int *pos, int *track, int *index )
{
struct cdrom_subchnl sc;
struct itimerval old_timer, new_timer;
struct sigaction old_sig, new_sig;
/* If we can't get status, the CD is ejected, so default to that. */
*mode = WM_CDM_EJECTED;
/* Is the device open? */
if (d->fd < 0)
{
switch (wmcd_open(d)) {
case -1: /* error */
return (-1);
case 1: /* retry */
return (0);
}
}
#if defined(BUILD_CDDA) && defined(WMCDDA_DONE) /* { */
if ((oldmode == WM_CDM_PAUSED || oldmode == WM_CDM_PLAYING || oldmode == WM_CDM_STOPPED) &&
cdda_slave > -1)
{
struct cdda_block blk;
struct pollfd fds;
int gotone = 0;
fds.fd = cdda_slave;
fds.events = POLLRDNORM;
*mode = oldmode;
while (poll(&fds, 1, 0) > 0)
{
read(cdda_slave, &blk, sizeof(blk));
gotone = 1;
}
/* We only want to use the latest status report. */
if (gotone)
{
if (blk.status == WMCDDA_PLAYED)
{
*track = blk.track;
*index = blk.index;
*pos = blk.minute * 60 * 75 +
blk.second * 75 +
blk.frame;
*mode = WM_CDM_PLAYING;
}
else if (blk.status == WMCDDA_DONE)
*mode = WM_CDM_TRACK_DONE;
else if (blk.status == WMCDDA_STOPPED)
{
if (oldmode == WM_CDM_PLAYING || oldmode == WM_CDM_PAUSED)
*mode = WM_CDM_PAUSED;
else
*mode = WM_CDM_STOPPED;
}
else if (blk.status == WMCDDA_ERROR)
{
/*
* An error near the end of the CD probably
* just means we hit the end.
*/
*mode = WM_CDM_TRACK_DONE;
}
else if (blk.status == WMCDDA_EJECTED)
{
*mode = WM_CDM_EJECTED;
}
}
return (0);
}
#endif /* } */
/*
* Solaris 2.2 hangs on this ioctl if someone else ejects the CD.
* So we schedule a signal to break out of the hang if the call
* takes an unreasonable amount of time. The signal handler and
* timer are restored immediately to avoid interfering with XView.
*/
if (intermittent_dev)
{
/*
* First clear out the timer so XView's signal doesn't happen
* while we're diddling with the signal handler.
*/
timerclear(&new_timer.it_interval);
timerclear(&new_timer.it_value);
setitimer(ITIMER_REAL, &new_timer, &old_timer);
/*
* Now install the no-op signal handler.
*/
new_sig.sa_handler = do_nothing;
memset(&new_sig.sa_mask, 0, sizeof(new_sig.sa_mask));
new_sig.sa_flags = 0;
if (sigaction(SIGALRM, &new_sig, &old_sig))
perror("sigaction");
/*
* And finally, set the timer.
*/
new_timer.it_value.tv_sec = 2;
setitimer(ITIMER_REAL, &new_timer, NULL);
}
sc.cdsc_format = CDROM_MSF;
if (ioctl(d->fd, CDROMSUBCHNL, &sc))
{
if (intermittent_dev)
{
sigaction(SIGALRM, &old_sig, NULL);
setitimer(ITIMER_REAL, &old_timer, NULL);
/* If the device can disappear, let it do so. */
close(d->fd);
d->fd = -1;
}
return (0);
}
if (intermittent_dev)
{
sigaction(SIGALRM, &old_sig, NULL);
setitimer(ITIMER_REAL, &old_timer, NULL);
}
switch (sc.cdsc_audiostatus) {
case CDROM_AUDIO_PLAY:
*mode = WM_CDM_PLAYING;
*track = sc.cdsc_trk;
*index = sc.cdsc_ind;
*pos = sc.cdsc_absaddr.msf.minute * 60 * 75 +
sc.cdsc_absaddr.msf.second * 75 +
sc.cdsc_absaddr.msf.frame;
break;
case CDROM_AUDIO_PAUSED:
case CDROM_AUDIO_INVALID:
case CDROM_AUDIO_NO_STATUS:
if (oldmode == WM_CDM_PLAYING || oldmode == WM_CDM_PAUSED)
{
*mode = WM_CDM_PAUSED;
*track = sc.cdsc_trk;
*index = sc.cdsc_ind;
*pos = sc.cdsc_absaddr.msf.minute * 60 * 75 +
sc.cdsc_absaddr.msf.second * 75 +
sc.cdsc_absaddr.msf.frame;
}
else
*mode = WM_CDM_STOPPED;
break;
/* CD ejected manually during play. */
case CDROM_AUDIO_ERROR:
break;
case CDROM_AUDIO_COMPLETED:
*mode = WM_CDM_TRACK_DONE; /* waiting for next track. */
break;
default:
*mode = WM_CDM_UNKNOWN;
break;
}
return (0);
}
/*
* Set the volume level for the left and right channels. Their values
* range from 0 to 100.
*/
int
gen_set_volume( struct wm_drive *d, int left, int right )
{
struct cdrom_volctrl v;
#if defined(SIGTHAW) && defined(SYSV)
last_left = left;
last_right = right;
thecd = d;
#endif
if (cdda_slave > -1)
{
int bal, vol;
unsigned char cmd[2];
bal = (right - left) + 100;
bal *= 255;
bal /= 200;
if (right > left)
vol = right;
else
vol = left;
vol *= 255;
vol /= 100;
cmd[0] = 'B';
cmd[1] = bal;
write(cdda_slave, cmd, 2);
cmd[0] = 'V';
cmd[1] = vol;
write(cdda_slave, cmd, 2);
/*
* Don't wait for the ack, or the user won't be able to drag
* the volume slider smoothly.
*/
return (0);
}
left = (left * (max_volume - min_volume)) / 100 + min_volume;
right = (right * (max_volume - min_volume)) / 100 + min_volume;
v.channel0 = left < 0 ? 0 : left > 255 ? 255 : left;
v.channel1 = right < 0 ? 0 : right > 255 ? 255 : right;
return (ioctl(d->fd, CDROMVOLCTRL, &v));
}
/*
* Pause the CD.
*/
int
gen_pause( struct wm_drive *d )
{
if (cdda_slave > -1)
{
int dummy, mode = WM_CDM_PLAYING;
write(cdda_slave, "S", 1);
get_ack(cdda_slave);
/* while (mode != WM_CDM_PAUSED)
gen_get_drive_status(d, WM_CDM_PAUSED, &mode, &dummy, &dummy,
&dummy);
*/
return (0);
}
codec_stop();
return (ioctl(d->fd, CDROMPAUSE));
}
/*
* Resume playing the CD (assuming it was paused.)
*/
int
gen_resume( struct wm_drive *d )
{
if (cdda_slave > -1)
return (1);
codec_start();
return (ioctl(d->fd, CDROMRESUME));
}
/*
* Stop the CD.
*/
int
gen_stop( struct wm_drive *d )
{
if (cdda_slave > -1)
{
write(cdda_slave, "S", 1);
get_ack(cdda_slave);
/*
* The WMCDDA_STOPPED status message will be caught by
* gen_get_drive_status.
*/
return (0);
}
codec_stop();
return (ioctl(d->fd, CDROMSTOP));
}
/*
* Play the CD from one position to another.
*
* d Drive structure.
* start Frame to start playing at.
* end End of this chunk.
* realstart Beginning of this chunk (<= start)
*/
int
gen_play( struct wm_drive *d, int start, int end, int realstart)
{
struct cdrom_msf msf;
unsigned char cmdbuf[10];
current_end = end;
if (cdda_slave > -1)
{
cmdbuf[0] = 'P';
cmdbuf[1] = start / (60 * 75);
cmdbuf[2] = (start % (60*75)) / 75;
cmdbuf[3] = start % 75;
cmdbuf[4] = end / (60*75);
cmdbuf[5] = (end % (60*75)) / 75;
cmdbuf[6] = end % 75;
cmdbuf[7] = realstart / (60 * 75);
cmdbuf[8] = (realstart % (60*75)) / 75;
cmdbuf[9] = realstart % 75;
/* Write the play command and make sure the slave has it. */
write(cdda_slave, cmdbuf, 10);
get_ack(cdda_slave);
return (0);
}
msf.cdmsf_min0 = start / (60*75);
msf.cdmsf_sec0 = (start % (60*75)) / 75;
msf.cdmsf_frame0 = start % 75;
msf.cdmsf_min1 = end / (60*75);
msf.cdmsf_sec1 = (end % (60*75)) / 75;
msf.cdmsf_frame1 = end % 75;
codec_start();
if (ioctl(d->fd, CDROMSTART))
return (-1);
if (ioctl(d->fd, CDROMPLAYMSF, &msf))
return (-2);
return (0);
}
/*
* Eject the current CD, if there is one.
*/
int
gen_eject( struct wm_drive *d )
{
struct stat stbuf;
struct ustat ust;
if (fstat(d->fd, &stbuf) != 0)
return (-2);
/* Is this a mounted filesystem? */
if (ustat(stbuf.st_rdev, &ust) == 0)
return (-3);
if (cdda_slave > -1)
{
write(cdda_slave, "S", 1);
get_ack(cdda_slave);
}
if (ioctl(d->fd, CDROMEJECT))
return (-1);
/* Close the device if it needs to vanish. */
if (intermittent_dev)
{
close(d->fd);
d->fd = -1;
/* Also remember to tell the cddaslave since volume
manager switches links around on us */
if (cdda_slave > -1)
{
write(cdda_slave, "E", 1);
get_ack(cdda_slave);
}
}
return (0);
} /* gen_eject() */
/*----------------------------------------*
* Close the CD tray
*
* Please edit and send changes to
* milliByte@DeathsDoor.com
*----------------------------------------*/
int gen_closetray(struct wm_drive *d)
{
#ifdef CAN_CLOSE
if(!close(d->fd))
{
d->fd=-1;
return(wmcd_reopen(d));
} else {
return(-1);
}
#else
/* Always succeed if the drive can't close */
return(0);
#endif /* CAN_CLOSE */
} /* gen_closetray() */
/*
* Read the initial volume from the drive, if available. Each channel
* ranges from 0 to 100, with -1 indicating data not available.
*/
int
gen_get_volume( struct wm_drive *d, int *left, int *right )
{
#if defined(BUILD_CDDA) && defined(WMCDDA_DONE) /* { */
struct cdda_block blk;
if (cdda_slave > -1)
{
write(cdda_slave, "G", 1);
get_ack(cdda_slave);
read(cdda_slave, &blk, sizeof(blk));
*left = *right = (blk.volume * 100 + 254) / 255;
if (blk.balance < 110)
*right = (((blk.volume * blk.balance + 127) / 128) *
100 + 254) / 255;
else if (blk.balance > 146)
*left = (((blk.volume * (255 - blk.balance) +
127) / 128) * 100 + 254) / 255;
return (0);
}
#endif /* } */
*left = *right = -1;
return (wm_scsi2_get_volume(d, left, right));
}
#ifdef BUILD_CDDA /* { */
/*
* Tell the CDDA slave to set the play direction.
*/
void
gen_set_direction( int newdir )
{
unsigned char buf[2];
if (cdda_slave > -1)
{
buf[0] = 'd';
buf[1] = newdir;
write(cdda_slave, buf, 2);
get_ack(cdda_slave);
}
}
/*
* Tell the CDDA slave to set the play speed.
*/
void
gen_set_speed( int speed )
{
unsigned char buf[2];
if (cdda_slave > -1)
{
buf[0] = 's';
buf[1] = speed;
write(cdda_slave, buf, 2);
get_ack(cdda_slave);
}
}
/*
* Tell the CDDA slave to set the loudness level.
*/
void
gen_set_loudness( int loud )
{
unsigned char buf[2];
if (cdda_slave > -1)
{
buf[0] = 'L';
buf[1] = loud;
write(cdda_slave, buf, 2);
get_ack(cdda_slave);
}
}
/*
* Tell the CDDA slave to start (or stop) saving to a file.
*/
void
gen_save( char *filename )
{
int len;
if (filename == NULL || filename[0] == '\0')
len = 0;
else
len = strlen(filename);
write(cdda_slave, "F", 1);
write(cdda_slave, &len, sizeof(len));
if (len)
write(cdda_slave, filename, len);
get_ack(cdda_slave);
}
#endif /* BUILD_CDDA } */
#ifndef solbourne
/*
* Send an arbitrary SCSI command out the bus and optionally wait for
* a reply if "retbuf" isn't NULL.
*/
int
wm_scsi( struct wm_drive *d,
unsigned char *cdb,
int cdblen, void *retbuf,
int retbuflen, int getreply )
{
char x;
struct uscsi_cmd cmd;
memset(&cmd, 0, sizeof(cmd));
cmd.uscsi_cdb = (void *) cdb;
cmd.uscsi_cdblen = cdblen;
cmd.uscsi_bufaddr = retbuf ? retbuf : (void *)&x;
cmd.uscsi_buflen = retbuf ? retbuflen : 0;
cmd.uscsi_flags = USCSI_ISOLATE | USCSI_SILENT;
if (getreply)
cmd.uscsi_flags |= USCSI_READ;
if (ioctl(d->fd, USCSICMD, &cmd))
return (-1);
if (cmd.uscsi_status)
return (-1);
return (0);
}
#else
int wm_scsi() { return (-1); }
#endif
/*
* Open the CD device and figure out what kind of drive is attached.
*/
int
wmcd_open( struct wm_drive *d )
{
int fd;
static int warned = 0;
char vendor[32] = WM_STR_GENVENDOR;
char model[32] = WM_STR_GENMODEL;
char rev[32] = WM_STR_GENREV;
if (cd_device == NULL)
find_cdrom();
if (d->fd >= 0) /* Device already open? */
return (0);
d->fd = open(cd_device, 0);
if (d->fd < 0)
{
/* Solaris 2.2 volume manager moves links around */
if (errno == ENOENT && intermittent_dev)
return (1);
if (errno == EACCES)
{
if (!warned)
{
char realname[MAXPATHLEN];
if (realpath(cd_device, realname) == NULL)
{
perror("realpath");
return (-1);
}
fprintf(stderr,
"As root, please run\n\nchmod 666 %s\n\n%s\n", realname,
"to give yourself permission to access the CD-ROM device.");
warned++;
}
}
else if (errno != ENXIO)
{
perror(cd_device);
exit(1);
}
/* No CD in drive. */
return (1);
}
if (warned)
{
warned = 0;
fprintf(stderr, "Thank you.\n");
}
/* Now fill in the relevant parts of the wm_drive structure. */
fd = d->fd;
/*
* See if we can do digital audio.
*/
if (cdda_init(d))
enable_cdda_controls(1);
/* Can we figure out the drive type? */
if (wm_scsi_get_drive_type(d, vendor, model, rev)) {
if (errno == EPERM) {
/*
* Solaris 2.4 seems to refuse to do USCSICMD ioctls
* when not running as root. SunOS 4.x allows it
* as an unprivileged user, though.
*/
fprintf(stderr, "Warning: WorkMan can't adapt itself to your drive unless it runs as root.\n");
} else {
fprintf(stderr, "Warning: WorkMan couldn't determine drive type\n");
}
*d = *(find_drive_struct("Generic", "drive type", ""));
} else {
*d = *(find_drive_struct(vendor, model, rev));
}
wm_drive_settype(vendor, model, rev);
d->fd = fd;
(d->init)(d);
return (0);
} /* wmcd_open() */
/*
* Re-Open the device if it is open.
*/
int
wmcd_reopen( struct wm_drive *d )
{
int status;
do {
wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "wmcd_reopen ");
if (d->fd >= 0) /* Device really open? */
{
wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "closes the device and ");
status = close( d->fd ); /* close it! */
/* we know, that the file is closed, do we? */
d->fd = -1;
}
wm_susleep( 1000 );
wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "calls wmcd_open()\n");
status = wmcd_open( d ); /* open it as usual */
wm_susleep( 1000 );
} while ( status != 0 );
return status;
} /* wmcd_reopen() */
/*
* The following code activates the internal CD audio passthrough on
* SPARCstation 5 systems (and possibly others.)
*
* Thanks to <stevep@ctc.ih.att.com>, Roger Oscarsson <roger@cs.umu.se>
* and Steve McKinty <>
*
* Most CD drives have a headphone socket on the front, but it
* is often more convenient to route the audio though the
* built-in audio device. That way the user can leave their
* headphones plugged-in to the base system, for use with
* other audio stuff like ShowMeTV
*/
#ifdef CODEC /* { */
#ifdef SYSV /* { */
# include <sys/ioctl.h>
# include <sys/audioio.h>
# include <stdlib.h>
#else /* } { */
# include <sun/audioio.h>
# define AUDIO_DEV_SS5STYLE 5
typedef int audio_device_t;
#endif /* } */
#endif /* } */
/*
* Don't do anything with /dev/audio if we can't set it to high quality.
* Also, don't do anything real if it's not Solaris.
*/
#if !defined(AUDIO_ENCODING_LINEAR) || !defined(CODEC) || !defined(SYSV) /* { */
codec_init() { return 0; }
codec_start() { return 0; }
codec_stop() { return 0; }
#else
#ifndef AUDIO_INTERNAL_CD_IN
#define AUDIO_INTERNAL_CD_IN 0x4
#endif
static char* devname = 0;
static char* ctlname = 0;
static int ctl_fd = -1;
static int port = AUDIO_LINE_IN;
int internal_audio = 1;
codec_init( void )
{
register int i;
char* ctlname;
audio_info_t foo;
audio_device_t aud_dev;
if (internal_audio == 0)
{
ctl_fd = -1;
return(0);
}
if (!(devname = getenv("AUDIODEV"))) devname = "/dev/audio";
ctlname = strcat(strcpy(malloc(strlen(devname) + 4), devname), "ctl");
if ((ctl_fd = open(ctlname, O_WRONLY, 0)) < 0) {
perror(ctlname);
return -1;
}
if (ioctl(ctl_fd, AUDIO_GETDEV, &aud_dev) < 0) {
close(ctl_fd);
ctl_fd = -1;
return -1;
}
/*
* Instead of filtering the "OLD_SUN_AUDIO", try to find the new ones.
* Not sure if this is all correct.
*/
#ifdef SYSV
if (strcmp(aud_dev.name, "SUNW,CS4231") &&
strcmp(aud_dev.name, "SUNW,sb16") &&
strcmp(aud_dev.name, "SUNW,sbpro"))
#else
if (aud_dev != AUDIO_DEV_SS5STYLE)
#endif
{
close(ctl_fd);
ctl_fd = -1;
return 0; /* but it's okay */
}
/*
* Does the chosen device have an internal CD port?
* If so, use it. If not then try and use the
* Line In port.
*/
if (ioctl(ctl_fd, AUDIO_GETINFO, &foo) < 0)
{
perror("AUDIO_GETINFO");
close(ctl_fd);
ctl_fd = -1;
return(-1);
}
if (foo.record.avail_ports & AUDIO_INTERNAL_CD_IN)
port = AUDIO_INTERNAL_CD_IN;
else
port = AUDIO_LINE_IN;
/*
* now set it up to use it. See audio(7I)
*/
AUDIO_INITINFO(&foo);
foo.record.port = port;
foo.record.balance = foo.play.balance = AUDIO_MID_BALANCE;
#ifdef BUILD_CDDA
if (cdda_slave > -1)
foo.monitor_gain = 0;
else
#endif
foo.monitor_gain = AUDIO_MAX_GAIN;
/*
* These next ones are tricky. The voulme will depend on the CD drive
* volume (set by the knob on the drive and/or by workman's volume
* control), the audio device record gain and the audio device
* play gain. For simplicity we set the latter two to something
* reasonable, but we don't force them to be reset if the user
* wants to change them.
*/
foo.record.gain = (AUDIO_MAX_GAIN * 80) / 100;
foo.play.gain = (AUDIO_MAX_GAIN * 40) / 100;
ioctl(ctl_fd, AUDIO_SETINFO, &foo);
return 0;
}
static kick_codec( void ) {
audio_info_t foo;
int dev_fd;
int retval = 0;
/*
* Open the audio device, not the control device. This
* will fail if someone else has taken it.
*/
if ((dev_fd = open(devname, O_WRONLY|O_NDELAY, 0)) < 0) {
perror(devname);
return -1;
}
AUDIO_INITINFO(&foo);
foo.record.port = port;
foo.monitor_gain = AUDIO_MAX_GAIN;
/* These can only be set on the real device */
foo.play.sample_rate = 44100;
foo.play.channels = 2;
foo.play.precision = 16;
foo.play.encoding = AUDIO_ENCODING_LINEAR;
if ((retval = ioctl(dev_fd, AUDIO_SETINFO, &foo)) < 0)
perror(devname);
close(dev_fd);
return retval;
}
codec_start( void )
{
audio_info_t foo;
if (ctl_fd < 0)
return 0;
if (ioctl(ctl_fd, AUDIO_GETINFO, &foo) < 0)
return -1;
if (foo.play.channels != 2) return kick_codec();
if (foo.play.encoding != AUDIO_ENCODING_LINEAR) return kick_codec();
if (foo.play.precision != 16) return kick_codec();
if (foo.play.sample_rate != 44100) return kick_codec();
if (foo.record.channels != 2) return kick_codec();
if (foo.record.encoding != AUDIO_ENCODING_LINEAR) return kick_codec();
if (foo.record.precision != 16) return kick_codec();
if (foo.record.sample_rate != 44100) return kick_codec();
if (foo.monitor_gain != AUDIO_MAX_GAIN) return kick_codec();
if (foo.record.port != port) return kick_codec();
return 0;
}
codec_stop( void ) { return 0; }
#endif /* CODEC } */
#endif /* sun } */