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/*
 * $Id$
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02111-1307  USA
 *
 *
 * HP/UX-specific drive control routines.
 */

#if defined(hpux) || defined(__hpux)

#include <errno.h>
#include <stdio.h>
#include <fcntl.h>
#include <ustat.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/param.h>
#include <sys/stat.h>

#include "include/wm_config.h"

/*
 * this is for glibc 2.x which the ust structure in
 * ustat.h not stat.h
 */
#ifdef __GLIBC__
#include <sys/ustat.h>
#endif

#include <sys/time.h>
#include <sys/scsi.h>

#include "include/wm_struct.h"
#include "include/wm_helpers.h"
#include "include/wm_cdtext.h"

#define WM_MSG_CLASS WM_MSG_CLASS_PLATFORM

void *malloc();
char *strchr();

int	min_volume = 0;
int	max_volume = 255;

/*--------------------------------------------------------*
 * 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, flag = 1;
  static int	warned = 0;
  /* unsigned ? */
  char		vendor[32], model[32], rev[32];
  
  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)
    d->cd_device = DEFAULT_CD_DEVICE;
  
  d->fd = open(d->cd_device, O_RDWR);
  if (d->fd < 0)
    {
      if (errno == EACCES)
	{
          return -EACCES;
	} 
      else if (errno != EINTR)
	{
          return (-6);
	}
      
      /* 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",
	      d->cd_device, strerror(errno));
      /*exit(1);*/
    }
  
  /* 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);
  find_drive_struct(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\n");
    status = gen_close( d );
    wm_susleep( 1000 );
    wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "calling wmcd_open()\n");
    status = wmcd_open( d ); /* open it as usual */
    wm_susleep( 1000 );
  } while ( status != 0 );
  return status;
} /* wmcd_reopen() */

/*----------------------------------*
 * Send a SCSI command out the bus.
 *----------------------------------*/
int
wm_scsi( 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 (! retbuf || ! retbuflen)
    (void) read(d->fd, reply_buf, sizeof(reply_buf));
  else if (getreply)
    {
      if (read(d->fd, retbuf, retbuflen) < 0)
	return (-1);
    }
  else
    if (write(d->fd, retbuf, retbuflen) < 0)
      return (-1);
  
  return (0);
#endif
} /* 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;
}

/*--------------------------------------------------------------------------*
 * 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, 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)
{
  int		tmp;
  
  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 )
{
  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));
} /* gen_eject() */

/*----------------------------------------*
 * Close the CD tray
 *----------------------------------------*/
int 
gen_closetray(struct wm_drive *d)
{
#ifdef CAN_CLOSE
  return (wm_scsi2_closetray(d));
#else
  /* Always succeed if the drive can't close */
  return(0);
#endif /* CAN_CLOSE */
} /* 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() */

/*------------------------------------------------------------------------*
 * gen_get_cdtext(drive, buffer, lenght)
 *------------------------------------------------------------------------*/

int
gen_get_cdtext(struct wm_drive *d, unsigned char **pp_buffer, int *p_buffer_lenght)
{
  /* This needs to be tested ! */
  return wm_scsi_get_cdtext(d, pp_buffer, p_buffer_lenght);
} /* gen_get_cdtext() */


#endif