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Sun Solutions CD - APR '97 - SEP '97 (704-3778-12 Rev. H)(Sun Microsystems, Inc.)(1997).iso
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plat_hpux.c
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1997-02-26
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299 lines
/*
* @(#)plat_hpux.c 1.7 12/28/93
*
* HP/UX-specific drive control routines.
*/
static char *ident = "@(#)plat_hpux.c 1.7 12/28/93";
#ifdef hpux
#include <errno.h>
#include <stdio.h>
#include <sys/types.h>
#include <fcntl.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/scsi.h>
#include <ustat.h>
#include "struct.h"
#define DEFAULT_CD_DEVICE "/dev/rscsi"
void *malloc();
char *strchr();
int min_volume = 0;
int max_volume = 255;
extern char *cd_device;
/*
* Initialize the drive. A no-op for the generic driver.
*/
int
gen_init(d)
struct wm_drive *d;
{
return (0);
}
/*
* Get the number of tracks on the CD.
*/
int
gen_get_trackcount(d, tracks)
struct wm_drive *d;
int *tracks;
{
return (wm_scsi2_get_trackcount(d, tracks));
}
/*
* 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;
{
return (wm_scsi2_get_trackinfo(d, track, data, startframe));
}
/*
* Get the number of frames on the CD.
*/
int
gen_get_cdlen(d, frames)
struct wm_drive *d;
int *frames;
{
int tmp;
return (wm_scsi2_get_cdlen(d, frames));
}
/*
* 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;
{
return (wm_scsi2_get_drive_status(d, oldmode, mode, pos, track, index));
}
/*
* 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;
{
return (wm_scsi2_set_volume(d, left, right));
}
/*
* 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;
{
return (wm_scsi2_get_volume(d, left, right));
}
/*
* Pause the CD.
*/
int
gen_pause(d)
struct wm_drive *d;
{
return (wm_scsi2_pause(d));
}
/*
* Resume playing the CD (assuming it was paused.)
*/
int
gen_resume(d)
struct wm_drive *d;
{
return (wm_scsi2_resume(d));
}
/*
* Stop the CD.
*/
int
gen_stop(d)
struct wm_drive *d;
{
return (wm_scsi2_stop(d));
}
/*
* Play the CD from one position to another (both in frames.)
*/
int
gen_play(d, start, end)
struct wm_drive *d;
int start, end;
{
return (wm_scsi2_play(d, start, end));
}
/*
* 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);
return (wm_scsi2_eject(d));
}
/*
* Send a SCSI command out the bus.
*/
int
wm_scsi(d, cdb, cdblen, retbuf, retbuflen, getreply)
struct wm_drive *d;
unsigned char *cdb;
int cdblen;
void *retbuf;
int retbuflen;
int getreply;
{
#ifdef SIOC_IO
struct sctl_io cmd;
memset(&cmd, 0, sizeof(cmd));
cmd.cdb_length = cdblen;
cmd.data = retbuf;
cmd.data_length = retbuflen;
cmd.max_msecs = 1000;
cmd.flags = getreply ? SCTL_READ : 0;
memcpy(cmd.cdb, cdb, cdblen);
return (ioctl(d->fd, SIOC_IO, &cmd));
#else
/* this code, for pre-9.0, is BROKEN! ugh. */
char reply_buf[12];
struct scsi_cmd_parms cmd;
memset(&cmd, 0, sizeof(cmd));
cmd.clock_ticks = 500;
cmd.cmd_mode = 1;
cmd.cmd_type = cdblen;
memcpy(cmd.command, cdb, cdblen);
if (ioctl(d->fd, SIOC_SET_CMD, &cmd) < 0)
return (-1);
if (getreply)
{
if (read(d->fd, retbuf, retbuflen) < 0)
return (-1);
}
else
(void) read(d->fd, reply_buf, sizeof(reply_buf));
return (0);
#endif
}
/*
* Open the CD and figure out which kind of drive is attached.
*/
int
wmcd_open(d)
struct wm_drive *d;
{
int fd, flag = 1;
static int warned = 0;
char vendor[9], model[17], rev[5];
if (d->fd >= 0) /* Device already open? */
return (0);
if (cd_device == NULL)
cd_device = DEFAULT_CD_DEVICE;
d->fd = open(cd_device, O_RDWR);
if (d->fd < 0)
{
if (errno == EACCES)
{
if (! warned)
{
fprintf(stderr,
"As root, please run\n\nchmod 666 %s\n\n%s\n", cd_device,
"to give yourself permission to access the CD-ROM device.");
warned++;
}
}
else if (errno != EINTR)
{
perror(cd_device);
exit(1);
}
/* No CD in drive. */
return (1);
}
/* Prepare the device to receive raw SCSI commands. */
if (ioctl(d->fd, SIOC_CMD_MODE, &flag) < 0)
{
fprintf(stderr, "%s: SIOC_CMD_MODE: true: %s\n",
cd_device, strerror(errno));
/*exit(1);*/
}
if (warned)
{
warned = 0;
fprintf(stderr, "Thank you.\n");
}
/* Now fill in the relevant parts of the wm_drive structure. */
fd = d->fd;
/* Default drive is the HP one, which might not respond to INQUIRY */
strcpy(vendor, "TOSHIBA");
strcpy(model, "XM-3301");
rev[0] = '\0';
wm_scsi_get_drive_type(d, vendor, model, rev);
*d = *(find_drive_struct(vendor, model, rev));
about_set_drivetype(d->vendor, d->model, rev);
d->fd = fd;
(d->init)(d);
return (0);
}
void
keep_cd_open() { }
#endif