#ifndef FD_xtuner_h_
  #include "xtuner.h"
#endif

extern flags_t flags;
extern xtuner_data_t xtuner_data;
extern mixer_data_t mixer_data;

/* ========================================================================= */
/* Checks for mixer device and bass-treble adjustment capabilites            */
/* ========================================================================= */
init_hw()
{
	int	i,
		level,
		curmask;
	char	errmsg[64],
		iocstr[64];


	/* Open device */
	if ((mixer_data.dev_fd = open("/dev/mixer", O_RDONLY)) < 0)
        {
          sprintf(errmsg, "%s: Cannot open device %s",
		  "Xtuner", "/dev/mixer");
	  perror(errmsg);
	  return;
	}

        flags.mixer_f = TRUE;
        
	/* Read device mask */
	do_ioctl(SOUND_MIXER_READ_DEVMASK,
		 &mixer_data.devmask,
		 "SOUND_MIXER_READ_DEVMASK",
		 IOC_DATA_IN);

	/* If bass and treble is supported then goooden sweet*/
	if ((mixer_data.devmask & SOUND_MASK_BASS) &&
	   (mixer_data.devmask & SOUND_MASK_TREBLE))
	  mixer_data.mixer_supp = TRUE;
	else
	  fprintf(stderr,"Xtuner: Mixer not supported");
}

/* ========================================================================= */
/* Reads the current bass-treble values 				     */
/* ========================================================================= */
query_status()
{
	int		i,
			level,
			curmask;
	char		iocstr[64];

		
	sprintf(iocstr, "MIXER_READ: TREBLE");
	do_ioctl(MIXER_READ(SOUND_MIXER_TREBLE), &level, iocstr, IOC_DATA_IN);
	mixer_data.treble_level = (level & 0xff);
	
	sprintf(iocstr, "MIXER_READ: BASS");
	do_ioctl(MIXER_READ(SOUND_MIXER_BASS), &level, iocstr, IOC_DATA_IN);
	mixer_data.bass_level = (level & 0xff);
	
	sprintf(iocstr, "MIXER_READ: VOLUME");
	do_ioctl(MIXER_READ(SOUND_MIXER_VOLUME), &level, iocstr, IOC_DATA_IN);
	mixer_data.volume_level = (level & 0xff);

	
        if (mixer_data.treble_level > 100)
	  mixer_data.treble_level = 100;
        if (mixer_data.bass_level > 100)
	  mixer_data.bass_level = 100;
}

/* ========================================================================= */
/* Adjusts the bass-treble levels					     */
/* ========================================================================= */ 
adjust_mixer(int control)
{
	int level;
	char iocstr[64];
	
	if (control == SOUND_MIXER_BASS)
	  level = (mixer_data.bass_level << 8) | mixer_data.bass_level;
	else
	  level = (mixer_data.treble_level << 8) | mixer_data.treble_level;
	  
	sprintf(iocstr, "MIXER_WRITE[%d]", control);
	
	do_ioctl(MIXER_WRITE(control), &level, iocstr, IOC_DATA_OUT);
}