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tdemultimedia/kscd/libwm/plat_scor5.c

427 lines
8.5 KiB

/*
* $Id$
*
* This file is part of WorkMan, the civilized CD player library
* (c) 1991-1997 by Steven Grimm (original author)
* (c) by Dirk F<EFBFBD>rsterling (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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*
* SCO Openserver R5 specific. Derived from the KSCD plat_scor5.c
*
*/
static char plat_linux_id[] = "$Id$";
#if defined(M_UNIX) || defined(__M_UNIX)
#include "include/wm_config.h"
#include <sys/types.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <sys/stat.h>
#include <sys/scsi.h>
#include <sys/scsicmd.h>
#include <errno.h>
#include <macros.h>
#include "include/wm_struct.h"
#include "include/wm_scsi.h"
#include "include/wm_cdtext.h"
#define WM_MSG_CLASS WM_MSG_CLASS_PLATFORM
#define SENSE_SZ EXTD_SENSE_LEN
void *malloc();
char *strchr();
int min_volume = 0;
int max_volume = 255;
/*
* platformspecific internal function
*/
static int
create_cdrom_node(char *dev_name)
{
char pass_through[100];
int file_des;
struct stat sbuf;
int err;
int ccode;
strncpy(pass_through, dev_name, sizeof(pass_through)-2);
strcat(pass_through, "p" );
if (setreuid(-1,0) < 0)
{
perror("setregid/setreuid/access");
return -1;
}
ccode = access(pass_through, F_OK);
if (ccode < 0)
{
if (stat(dev_name, &sbuf) < 0)
{
perror("Call to get pass-through device number failed");
return -1;
}
if (mknod(pass_through, (S_IFCHR | S_IREAD | S_IWRITE),
sbuf.st_rdev) < 0)
{
perror("Unable to make pass-through node");
return -1;
}
if (chown(pass_through, 0 , 0) < 0)
{
perror("chown");
return -1;
}
if (chmod(pass_through, 0660 ) < 0)
{
perror("chmod");
return -1;
}
}
file_des = open( pass_through, O_RDONLY);
err = errno;
/*
if ( (setreuid(-1,getuid()) < 0) || (setregid(-1,getgid()) < 0) )
{
perror("setreuid/setregid");
exit(1);
}
*/
errno = err;
return file_des;
} /* create_cdrom_node() */
/*
* Initialize the drive. A no-op for the generic driver.
*/
int
gen_init( struct wm_drive *d )
{
return (0);
} /* gen_init() */
/*
* Open the CD and figure out which kind of drive is attached.
*/
int
wmcd_open( struct wm_drive *d)
{
int fd;
static int warned = 0;
char vendor[9], model[17], rev[5];
if (d->fd >= 0) /* Device already open? */
{
wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "wmcd_open(): [device is open (fd=%d)]\n", d->fd);
return (0);
}
if (d->cd_device == NULL)
{
fprintf(stderr,"cd_device string empty\n");
return (-1);
}
d->fd = create_cdrom_node(d->cd_device); /* this will do open */
if (d->fd < 0)
{
if (errno == EACCES)
{
if (! warned)
{
fprintf(stderr,"Cannot access %s\n",d->cd_device);
warned++;
}
}
else if (errno != EINTR)
{
perror(d->cd_device);
return( -6 );
}
/* can not acces CDROM device */
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;
if (wm_scsi_get_drive_type(d, vendor, model, rev) < 0)
{
perror("Cannot inquiry drive for it's type");
return (-1);
}
find_drive_struct(vendor, model, rev);
d->fd = fd;
return (0);
} /* wmcd_open */
/*
* Re-Open the device
*/
wmcd_reopen( struct wm_drive *d )
{
int status;
int tries = 0;
do {
gen_close(d);
susleep( 1000 );
status = wmcd_open( d );
susleep( 1000 );
tries++;
} while ( (status != 0) && (tries < 10) );
return status;
} /* wmcd_reopen() */
/*
* Send a SCSI command out the bus.
*/
int
wm_scsi(struct wm_drive *d, unsigned char *xcdb, int cdblen,
char *retbuf, int retbuflen, int getreply)
{
int ccode;
int file_des = d->fd;
unsigned char sense_buffer[ SENSE_SZ ];
/* getreply == 1 is read, == 0 is write */
struct scsicmd2 sb; /* Use command with automatic sense */
if (cdblen > SCSICMDLEN)
{
fprintf(stderr,"Cannot handle longer commands than %d bytes.\n", SCSICMDLEN);
exit(-1);
}
/* Get the command */
memcpy(sb.cmd.cdb, xcdb, cdblen);
sb.cmd.cdb_len = cdblen;
/* Point to data buffer */
sb.cmd.data_ptr = retbuf;
sb.cmd.data_len = retbuflen;
/* Is this write or read ? */
sb.cmd.is_write = (getreply==1) ? 0 : 1;
/* Zero out return status fields */
sb.cmd.host_sts = 0;
sb.cmd.target_sts = 0;
/* Set up for possible sense info */
sb.sense_ptr = sense_buffer;
sb.sense_len = sizeof(sense_buffer);
ccode = ioctl(file_des, SCSIUSERCMD2, &sb);
if ( sb.cmd.target_sts != 02 )
return ccode;
return 0;
} /* wm_scsi() */
int
gen_close( struct wm_drive *d )
{
if(d->fd != -1) {
wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "closing the device\n");
close(d->fd);
d->fd = -1;
}
return 0;
}
void
keep_cd_open() { }
/*
* 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(wm_drive *d, int oldmode, int *mode,
int *pos, int *track, int *index)
{
return (wm_scsi2_get_drive_status(d, oldmode, mode, pos, track, index));
} /* gen_get_drive_status() */
/*
* Get the number of tracks on the CD.
*/
int
gen_get_trackcount(struct wm_drive *d, int *tracks)
{
return (wm_scsi2_get_trackcount(d, tracks));
} /* gen_get_trackcount() */
/*
* 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)
{
return (wm_scsi2_get_trackinfo(d, track, data, startframe));
} /* gen_get_trackinfo() */
/*
* Get the number of frames on the CD.
*/
int
gen_get_cdlen(struct wm_drive *d, int *frames)
{
return (wm_scsi2_get_cdlen(d, frames));
} /* gen_get_cdlen() */
/*
* Play the CD from one position to another (both in frames.)
*/
int
gen_play(struct wm_drive *d, int start, int end)
{
return (wm_scsi2_play(d, start, end));
} /* gen_play() */
/*
* Pause the CD.
*/
int
gen_pause( struct wm_drive *d )
{
return (wm_scsi2_pause(d));
} /* gen_pause() */
/*
* Resume playing the CD (assuming it was paused.)
*/
int
gen_resume( struct wm_drive *d )
{
return (wm_scsi2_resume(d));
} /* gen_resume() */
/*
* Stop the CD.
*/
int
gen_stop(struct wm_drive *d)
{
return (wm_scsi2_stop(d));
} /* gen_stop() */
/*
* Eject the current CD, if there is one.
*/
int
gen_eject(struct wm_drive *d)
{
int stat;
stat = wm_scsi2_eject(d);
sleep(2);
return (stat);
} /* gen_eject() */
int
gen_closetray(struct wm_drive *d)
{
return(wm_scsi2_closetray(d));
} /* gen_closetray() */
/*
* 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)
{
return (wm_scsi2_set_volume(d, left, right));
} /* gen_set_volume() */
/*
* 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)
{
return (wm_scsi2_get_volume(d, left, right));
} /* gen_get_volume() */
/*------------------------------------------------------------------------*
13 years ago
* gen_get_cdtext(drive, buffer, length)
*------------------------------------------------------------------------*/
int
13 years ago
gen_get_cdtext(struct wm_drive *d, unsigned char **pp_buffer, int *p_buffer_length)
{
/* This needs to be tested! */
13 years ago
return wm_scsi_get_cdtext(d, pp_buffer, p_buffer_length);
} /* gen_get_cdtext() */
#endif /* M_UNIX */