/*
 * This file is part of WorkMan, the civilized CD player library
 * Copyright (C) 1991-1997 by Steven Grimm <koreth@midwinter.com>
 * Copyright (C) by Dirk Försterling <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
 *
 *
 * 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
gen_open( struct wm_drive *d )
{
	int flag = 1;

	if (d->fd >= 0) {	/* Device already open? */
		wm_lib_message(WM_MSG_LEVEL_DEBUG|WM_MSG_CLASS, "gen_open(): [device is open (fd=%d)]\n", d->fd);
		return 0;
    }


  	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);*/
    }

  /* Default drive is the HP one, which might not respond to INQUIRY */
  strcpy(d->vendor, "TOSHIBA");
  strcpy(d->model, "XM-3301");
  d->rev[0] = '\0';

  return 0;
} /* gen_open() */

/*----------------------------------*
 * Send a SCSI command out the bus.
 *----------------------------------*/
int
gen_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)
    	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
} /* gen_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)
{
	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)
{
	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() */

#endif