/*

 *   HDSPConf

 *    

 *   Copyright (C) 2003 Thomas Charbonnel (thomas@undata.org)

 *    

 *   This program is free software; you can redistribute it and/or modify

 *   it under the terms of the GNU General Public License as published by

 *   the Free Software Foundation; either version 2 of the License, or

 *   (at your option) any later version.

 *

 *   This program 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 General Public License for more details.

 *

 *   You should have received a copy of the GNU General Public License

 *   along with this program; if not, write to the Free Software

 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

 */

#pragma implementation

#include "HC_SpdifOut.h"

static void setSpdifBit(char *ctl_name, int val, int card_index)

{

    int err;

    char card_name[6];

    snd_ctl_elem_value_t *ctl;

    snd_ctl_elem_id_t *id;

    snd_ctl_t *handle;

    snprintf(card_name, 6, "hw:%i", card_index);

    snd_ctl_elem_value_alloca(&ctl;;

    snd_ctl_elem_id_alloca(&id;;

    snd_ctl_elem_id_set_name(id, ctl_name);

    snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_MIXER);

    snd_ctl_elem_id_set_index(id, 0);

    snd_ctl_elem_value_set_id(ctl, id);

    snd_ctl_elem_value_set_integer(ctl, 0, val);

    if ((err = snd_ctl_open(&handle, card_name, SND_CTL_NONBLOCK)) < 0) {

	fprintf(stderr, "Error opening ctl interface on card %s\n", card_name);

	return;

    }

    if ((err = snd_ctl_elem_write(handle, ctl)) < 0) {

	snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_HWDEP);

	snd_ctl_elem_value_set_id(ctl, id);

	if ((err = snd_ctl_elem_write(handle, ctl)) < 0) {

	    fprintf(stderr, "Error accessing ctl interface on card %s\n", card_name);

	    snd_ctl_close(handle);

	    return;

	}

    }

    snd_ctl_close(handle);

}

void spdif_on_adat_cb(Fl_Widget *w, void *arg)

{

    setSpdifBit("IEC958 Output also on ADAT1", ((Fl_Check_Button *)w)->value(), ((HC_CardPane *)arg)->alsa_index);

}

void spdif_professional_cb(Fl_Widget *w, void *arg)

{

    setSpdifBit("IEC958 Professional Bit", ((Fl_Check_Button *)w)->value(), ((HC_CardPane *)arg)->alsa_index);

}

void spdif_emphasis_cb(Fl_Widget *w, void *arg)

{

    setSpdifBit("IEC958 Emphasis Bit", ((Fl_Check_Button *)w)->value(), ((HC_CardPane *)arg)->alsa_index);

}

void spdif_nonaudio_cb(Fl_Widget *w, void *arg)

{

    setSpdifBit("IEC958 Non-audio Bit", ((Fl_Check_Button *)w)->value(), ((HC_CardPane *)arg)->alsa_index);

}

HC_SpdifOut::HC_SpdifOut(int x, int y, int w, int h):Fl_Group(x, y, w, h, "SPDIF Out")

{

	int i = 0;

	lock = 0;

	int v_step = (int)(h/4.0f);

	box(FL_ENGRAVED_FRAME);

	label("SPDIF Out");

	labelsize(10);

	align(FL_ALIGN_TOP|FL_ALIGN_LEFT);

	adat1 = new Fl_Check_Button(x+15, y+v_step*i++, w-30, v_step, "ADAT1");

	professional = new Fl_Check_Button(x+15, y+v_step*i++, w-30, v_step, "Professional");

	emphasis = new Fl_Check_Button(x+15, y+v_step*i++, w-30, v_step, "Emphasis");

	non_audio = new Fl_Check_Button(x+15, y+v_step*i++, w-30, v_step, "Non-Audio");

	adat1->labelsize(10);

	adat1->callback(spdif_on_adat_cb, (void *)parent());

	professional->labelsize(10);

	professional->callback(spdif_professional_cb, (void *)parent());

	emphasis->labelsize(10);

	emphasis->callback(spdif_emphasis_cb, (void *)parent());

	non_audio->labelsize(10);

	non_audio->callback(spdif_nonaudio_cb, (void *)parent());

	end();	

}

void HC_SpdifOut::setOut(unsigned char val)

{

    if (val != adat1->value()) {

	adat1->value(val);

    }

}

void HC_SpdifOut::setProfessional(unsigned char val)

{

    if (val != professional->value()) {

	professional->value(val);

    }

}

void HC_SpdifOut::setEmphasis(unsigned char val)

{

    if (val != emphasis->value()) {

	emphasis->value(val);

    }

}

void HC_SpdifOut::setNonaudio(unsigned char val)

{

    if (val != non_audio->value()) {

	non_audio->value(val);

    }

}

int HC_SpdifOut::handle(int e)

{

    switch (e) {

	case FL_PUSH:

	    lock = 1;

	    break;

	case FL_RELEASE:

	    lock = 0;

	    break;

	default:

	    return Fl_Group::handle(e);

    }

    return Fl_Group::handle(e);

}