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/*
* @(#)plat_sun.c 1.11 04 Jun 1995
*
* Sun-specific drive control routines.
*/
static char *ident = "@(#)plat_sun.c 1.11 04 Jun 1995";
#ifdef sun
#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 <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 <stdlib.h>
# include <sys/cdio.h>
# include <sys/scsi/impl/uscsi.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 "struct.h"
void *malloc();
char *strchr();
char *realpath();
int min_volume = 128;
int max_volume = 255;
extern char *cd_device;
extern int intermittent_dev, keep_open;
/*
* 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()
{
if (access("/vol/dev/aliases", X_OK) == 0)
{
/* Volume manager. Device might not be there. */
intermittent_dev = 1;
cd_device = "/vol/dev/aliases/cdrom0";
}
else if (access("/dev/rdsk/c0t6d0s2", F_OK) == 0)
{
/* Solaris 2.x w/o volume manager. Run keep_cd_open(). */
keep_open = 1;
cd_device = "/dev/rdsk/c0t6d0s2";
}
else if (access("/dev/rsr0", F_OK) == 0)
cd_device = "/dev/rsr0";
else
{
fprintf(stderr, "Couldn't find a CD device!\n");
exit(1);
}
}
/*
* Initialize the drive. A no-op for the generic driver.
*/
int
gen_init(d)
struct wm_drive *d;
{
codec_init();
return (0);
}
/*
* Get the number of tracks on the CD.
*/
int
gen_get_trackcount(d, tracks)
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(d, track, data, startframe)
struct wm_drive *d;
int track, *data, *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(d, frames)
struct wm_drive *d;
int *frames;
{
int tmp;
return (gen_get_trackinfo(d, CDROM_LEADOUT, &tmp, frames));
}
/* Alarm signal handler. */
static void do_nothing(x) 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(d, oldmode, mode, pos, track, index)
struct wm_drive *d;
enum cd_modes oldmode, *mode;
int *pos, *track, *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 = EJECTED;
/* Is the device open? */
if (d->fd < 0)
{
switch (wmcd_open(d)) {
case -1: /* error */
return (-1);
case 1: /* retry */
return (0);
}
}
/*
* 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 = 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 == PLAYING || oldmode == PAUSED)
{
*mode = 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 = STOPPED;
break;
/* CD ejected manually during play. */
case CDROM_AUDIO_ERROR:
break;
case CDROM_AUDIO_COMPLETED:
*mode = TRACK_DONE; /* waiting for next track. */
break;
default:
*mode = 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(d, left, right)
struct wm_drive *d;
int left, right;
{
struct cdrom_volctrl v;
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(d)
struct wm_drive *d;
{
codec_stop();
return (ioctl(d->fd, CDROMPAUSE));
}
/*
* Resume playing the CD (assuming it was paused.)
*/
int
gen_resume(d)
struct wm_drive *d;
{
codec_start();
return (ioctl(d->fd, CDROMRESUME));
}
/*
* Stop the CD.
*/
int
gen_stop(d)
struct wm_drive *d;
{
codec_stop();
return (ioctl(d->fd, CDROMSTOP));
}
/*
* Play the CD from one position to another (both in frames.)
*/
int
gen_play(d, start, end)
struct wm_drive *d;
int start, end;
{
struct cdrom_msf msf;
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(d)
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 (ioctl(d->fd, CDROMEJECT))
return (-1);
/* Close the device if it needs to vanish. */
if (intermittent_dev)
{
close(d->fd);
d->fd = -1;
}
return (0);
}
/*
* Close tray
* Dummie function only, return error
*/
int
gen_closetray(d)
struct wm_drive *d;
{
return(-1);
}
/*
* Keep the CD open all the time.
*/
void
keep_cd_open()
{
int fd;
struct flock fl;
extern end;
for (fd = 0; fd < 256; fd++)
close(fd);
if (fork())
exit(0);
if ((fd = open("/tmp/cd.lock", O_RDWR | O_CREAT, 0666)) < 0)
exit(0);
fl.l_type = F_WRLCK;
fl.l_whence = 0;
fl.l_start = 0;
fl.l_len = 0;
if (fcntl(fd, F_SETLK, &fl) < 0)
exit(0);
if (open(cd_device, 0) >= 0)
{
brk(&end);
pause();
}
exit(0);
}
/*
* 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(d, left, right)
struct wm_drive *d;
int *left, *right;
{
*left = *right = -1;
return (wm_scsi2_get_volume(d, left, right));
}
#ifndef solbourne
/*
* Send an arbitrary SCSI command out the bus and optionally wait for
* a reply if "retbuf" isn't NULL.
*/
int
wm_scsi(d, cdb, cdblen, retbuf, retbuflen, getreply)
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(d)
struct wm_drive *d;
{
int fd;
static int warned = 0;
char vendor[32], model[32], rev[32];
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;
/* Can we figure out the drive type? */
vendor[0] = model[0] = rev[0] = '\0';
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 (not a SCSI drive?)\n");
}
*d = *(find_drive_struct(vendor, model, rev));
about_set_drivetype(d->vendor, d->model, rev);
d->fd = fd;
(d->init)(d);
return (0);
}
/*
* The following code activates the internal CD audio passthrough on
* SPARCstation 5 systems (and possibly others.)
*
* Thanks to <stevep@ctc.ih.att.com>.
*/
#if !defined(SYSV) || !defined(CODEC)
/* not solaris, so don't do anything real */
codec_init() { return 0; }
codec_start() { return 0; }
codec_stop() { return 0; }
#else
#include <sys/ioctl.h>
#include <sys/audioio.h>
#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;
codec_init()
{
register int i;
char* ctlname;
audio_info_t foo;
audio_device_t aud_dev;
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;
}
if (strcmp(aud_dev.name, "SUNW,CS4231")) {
close(ctl_fd);
ctl_fd = -1;
return 0; /* but it's okay */
}
AUDIO_INITINFO(&foo);
foo.record.port = AUDIO_INTERNAL_CD_IN;
foo.monitor_gain = AUDIO_MAX_GAIN;
ioctl(ctl_fd, AUDIO_SETINFO, &foo);
return 0;
}
static
kick_codec()
{
audio_info_t foo;
int dev_fd;
int retval = 0;
if ((dev_fd = open(devname, O_WRONLY, 0)) < 0) {
perror(devname);
return -1;
}
AUDIO_INITINFO(&foo);
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()
{
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 != AUDIO_INTERNAL_CD_IN) return kick_codec();
return 0;
}
codec_stop() { return 0; }
#endif
#endif
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