/*
 * volume.c - analog volume settings
 *
 * This code is added by Takashi Iwai <tiwai@suse.de>
 *
 * Copyright (c) 2000 Jaroslav Kysela <perex@perex.cz>
 *
 *   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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

#include "envy24control.h"

#define toggle_set(widget, state) \
	gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(widget), state);

#define DAC_VOLUME_NAME	"DAC Volume"
#define ADC_VOLUME_NAME	"ADC Volume"
#define IPGA_VOLUME_NAME "IPGA Analog Capture Volume"
#define DAC_SENSE_NAME	"Output Sensitivity Switch"
#define ADC_SENSE_NAME	"Input Sensitivity Switch"

static int dac_volumes;
static int dac_max = 127;
static int adc_max = 127;
static int adc_volumes;
static int ipga_volumes;
static int dac_senses;
static int adc_senses;
static int dac_sense_items;
static int adc_sense_items;
static char *dac_sense_name[4];
static char *adc_sense_name[4];
extern int input_channels, output_channels;

int envy_dac_volumes(void)
{
	return dac_volumes;
}

int envy_dac_max(void)
{
	return dac_max;
}

int envy_adc_volumes(void)
{
	return adc_volumes;
}

int envy_adc_max(void)
{
	return adc_max;
}

int envy_ipga_volumes(void)
{
	return ipga_volumes;
}

int envy_dac_senses(void)
{
	return dac_senses;
}

int envy_adc_senses(void)
{
	return adc_senses;
}

int envy_dac_sense_items(void)
{
	return dac_sense_items;
}

int envy_adc_sense_items(void)
{
	return adc_sense_items;
}

const char *envy_dac_sense_enum_name(int i)
{
	return dac_sense_name[i];
}

const char *envy_adc_sense_enum_name(int i)
{
	return adc_sense_name[i];
}

int envy_analog_volume_available(void)
{
	return dac_volumes > 0 || adc_volumes > 0 || ipga_volumes > 0;
}


/*
 */

void dac_volume_update(int idx)
{
	snd_ctl_elem_value_t *val;
	int err;
	snd_ctl_elem_value_alloca(&val);
	snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER);
	snd_ctl_elem_value_set_name(val, DAC_VOLUME_NAME);
	snd_ctl_elem_value_set_index(val, idx);
	if ((err = snd_ctl_elem_read(ctl, val)) < 0) {
		g_print("Unable to read dac volume: %s\n", snd_strerror(err));
		return;
	}
	gtk_adjustment_set_value(GTK_ADJUSTMENT(av_dac_volume_adj[idx]),
				 -snd_ctl_elem_value_get_integer(val, 0));
}

void adc_volume_update(int idx)
{
	snd_ctl_elem_value_t *val;
	int err;
	snd_ctl_elem_value_alloca(&val);
	snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER);
	snd_ctl_elem_value_set_name(val, ADC_VOLUME_NAME);
	snd_ctl_elem_value_set_index(val, idx);
	if ((err = snd_ctl_elem_read(ctl, val)) < 0) {
		g_print("Unable to read adc volume: %s\n", snd_strerror(err));
		return;
	}
	gtk_adjustment_set_value(GTK_ADJUSTMENT(av_adc_volume_adj[idx]),
				 -snd_ctl_elem_value_get_integer(val, 0));
	snd_ctl_elem_value_set_name(val, IPGA_VOLUME_NAME);
	snd_ctl_elem_value_set_index(val, idx);
	if ((err = snd_ctl_elem_read(ctl, val)) < 0) {
		g_print("Unable to read ipga volume: %s\n", snd_strerror(err));
		return;
	}
	if (ipga_volumes > 0)
		gtk_adjustment_set_value(GTK_ADJUSTMENT(av_ipga_volume_adj[idx]),
					 -0);
}

void ipga_volume_update(int idx)
{
	snd_ctl_elem_value_t *val;
	int err, ipga_vol;
	snd_ctl_elem_value_alloca(&val);
	snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER);
	snd_ctl_elem_value_set_name(val, IPGA_VOLUME_NAME);
	snd_ctl_elem_value_set_index(val, idx);
	if ((err = snd_ctl_elem_read(ctl, val)) < 0) {
		g_print("Unable to read ipga volume: %s\n", snd_strerror(err));
		return;
	}
	gtk_adjustment_set_value(GTK_ADJUSTMENT(av_ipga_volume_adj[idx]),
				 -(ipga_vol = snd_ctl_elem_value_get_integer(val, 0)));
	snd_ctl_elem_value_set_name(val, ADC_VOLUME_NAME);
	snd_ctl_elem_value_set_index(val, idx);
	if ((err = snd_ctl_elem_read(ctl, val)) < 0) {
		g_print("Unable to read adc volume: %s\n", snd_strerror(err));
		return;
	}
	// set ADC volume to max if IPGA volume greater 0
	if (ipga_vol)
		gtk_adjustment_set_value(GTK_ADJUSTMENT(av_adc_volume_adj[idx]),
					 -adc_max);
}

void dac_sense_update(int idx)
{
	snd_ctl_elem_value_t *val;
	int err;
	int state;
	snd_ctl_elem_value_alloca(&val);
	snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER);
	snd_ctl_elem_value_set_name(val, DAC_SENSE_NAME);
	snd_ctl_elem_value_set_index(val, idx);
	if ((err = snd_ctl_elem_read(ctl, val)) < 0) {
		g_print("Unable to read dac sense: %s\n", snd_strerror(err));
		return;
	}
	state = snd_ctl_elem_value_get_enumerated(val, 0);
	toggle_set(av_dac_sense_radio[idx][state], TRUE);
}

void adc_sense_update(int idx)
{
	snd_ctl_elem_value_t *val;
	int err;
	int state;
	snd_ctl_elem_value_alloca(&val);
	snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER);
	snd_ctl_elem_value_set_name(val, ADC_SENSE_NAME);
	snd_ctl_elem_value_set_index(val, idx);
	if ((err = snd_ctl_elem_read(ctl, val)) < 0) {
		g_print("Unable to read adc sense: %s\n", snd_strerror(err));
		return;
	}
	state = snd_ctl_elem_value_get_enumerated(val, 0);
	toggle_set(av_adc_sense_radio[idx][state], TRUE);
}


/*
 */

void dac_volume_adjust(GtkAdjustment *adj, gpointer data)
{
	int idx = (int)(long)data;
	snd_ctl_elem_value_t *val;
	int err, ival = -(int)adj->value;
	char text[16];

	snd_ctl_elem_value_alloca(&val);
	snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER);
	snd_ctl_elem_value_set_name(val, DAC_VOLUME_NAME);
	snd_ctl_elem_value_set_index(val, idx);
	snd_ctl_elem_value_set_integer(val, 0, ival);
	sprintf(text, "%03i", ival);
	gtk_label_set_text(av_dac_volume_label[idx], text);
	if ((err = snd_ctl_elem_write(ctl, val)) < 0)
		g_print("Unable to write dac volume: %s\n", snd_strerror(err));
}

void adc_volume_adjust(GtkAdjustment *adj, gpointer data)
{
	int idx = (int)(long)data;
	snd_ctl_elem_value_t *val;
	int err, ival = -(int)adj->value;
	char text[16];

	snd_ctl_elem_value_alloca(&val);
	snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER);
	snd_ctl_elem_value_set_name(val, ADC_VOLUME_NAME);
	snd_ctl_elem_value_set_index(val, idx);
	snd_ctl_elem_value_set_integer(val, 0, ival);
	sprintf(text, "%03i", ival);
	gtk_label_set_text(av_adc_volume_label[idx], text);
	if ((err = snd_ctl_elem_write(ctl, val)) < 0)
		g_print("Unable to write adc volume: %s\n", snd_strerror(err));
}

void ipga_volume_adjust(GtkAdjustment *adj, gpointer data)
{
	int idx = (int)(long)data;
	snd_ctl_elem_value_t *val;
	int err, ival = -(int)adj->value;
	char text[16];

	snd_ctl_elem_value_alloca(&val);
	snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER);
	snd_ctl_elem_value_set_name(val, IPGA_VOLUME_NAME);
	snd_ctl_elem_value_set_index(val, idx);
	snd_ctl_elem_value_set_integer(val, 0, ival);
	sprintf(text, "%03i", ival);
	gtk_label_set_text(av_ipga_volume_label[idx], text);
	if ((err = snd_ctl_elem_write(ctl, val)) < 0)
		g_print("Unable to write ipga volume: %s\n", snd_strerror(err));
}

void dac_sense_toggled(GtkWidget *togglebutton, gpointer data)
{
	int idx = (long)data >> 8;
	int state = (long)data & 0xff;
	snd_ctl_elem_value_t *val;
	int err;

	snd_ctl_elem_value_alloca(&val);
	snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER);
	snd_ctl_elem_value_set_name(val, DAC_SENSE_NAME);
	snd_ctl_elem_value_set_index(val, idx);
	snd_ctl_elem_value_set_enumerated(val, 0, state);
	if ((err = snd_ctl_elem_write(ctl, val)) < 0)
		g_print("Unable to write dac sense: %s\n", snd_strerror(err));
}

void adc_sense_toggled(GtkWidget *togglebutton, gpointer data)
{
	int idx = (long)data >> 8;
	int state = (long)data & 0xff;
	snd_ctl_elem_value_t *val;
	int err;

	snd_ctl_elem_value_alloca(&val);
	snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER);
	snd_ctl_elem_value_set_name(val, ADC_SENSE_NAME);
	snd_ctl_elem_value_set_index(val, idx);
	snd_ctl_elem_value_set_enumerated(val, 0, state);
	if ((err = snd_ctl_elem_write(ctl, val)) < 0)
		g_print("Unable to write adc sense: %s\n", snd_strerror(err));
}

/*
 */

void analog_volume_init(void)
{
	snd_ctl_elem_info_t *info;
	int i;

	snd_ctl_elem_info_alloca(&info);

	snd_ctl_elem_info_set_interface(info, SND_CTL_ELEM_IFACE_MIXER);
	for (i = 0; i < 10; i++) {
		snd_ctl_elem_info_set_name(info, DAC_VOLUME_NAME);
		snd_ctl_elem_info_set_numid(info, 0);
		snd_ctl_elem_info_set_index(info, i);
		if (snd_ctl_elem_info(ctl, info) < 0)
			break;
		dac_max = snd_ctl_elem_info_get_max(info);
	}
	if (i < output_channels - 1)
		dac_volumes = i;
	else
		dac_volumes = output_channels;

	snd_ctl_elem_info_set_name(info, DAC_SENSE_NAME);
	for (i = 0; i < dac_volumes; i++) {
		snd_ctl_elem_info_set_numid(info, 0);
		snd_ctl_elem_info_set_index(info, i);
		if (snd_ctl_elem_info(ctl, info) < 0)
			break;
	}
	dac_senses = i;
	if (dac_senses > 0) {
		snd_ctl_elem_info_set_numid(info, 0);
		snd_ctl_elem_info_set_index(info, 0);
		snd_ctl_elem_info(ctl, info);
		dac_sense_items = snd_ctl_elem_info_get_items(info);
		for (i = 0; i < dac_sense_items; i++) {
			snd_ctl_elem_info_set_item(info, i);
			snd_ctl_elem_info(ctl, info);
			dac_sense_name[i] = strdup(snd_ctl_elem_info_get_item_name(info));
		}
	}

	for (i = 0; i < 10; i++) {
		snd_ctl_elem_info_set_name(info, ADC_VOLUME_NAME);
		snd_ctl_elem_info_set_numid(info, 0);
		snd_ctl_elem_info_set_index(info, i);
		if (snd_ctl_elem_info(ctl, info) < 0)
			break;
		adc_max = snd_ctl_elem_info_get_max(info);
	}
	if (i < input_channels - 1)
		adc_volumes = i;
	else
		adc_volumes = input_channels;
	snd_ctl_elem_info_set_name(info, ADC_SENSE_NAME);
	for (i = 0; i < adc_volumes; i++) {
		snd_ctl_elem_info_set_numid(info, 0);
		snd_ctl_elem_info_set_index(info, i);
		if (snd_ctl_elem_info(ctl, info) < 0)
			break;
	}
	adc_senses = i;
	if (adc_senses > 0) {
		snd_ctl_elem_info_set_numid(info, 0);
		snd_ctl_elem_info_set_index(info, 0);
		snd_ctl_elem_info(ctl, info);
		adc_sense_items = snd_ctl_elem_info_get_items(info);
		for (i = 0; i < adc_sense_items; i++) {
			snd_ctl_elem_info_set_item(info, i);
			snd_ctl_elem_info(ctl, info);
			adc_sense_name[i] = strdup(snd_ctl_elem_info_get_item_name(info));
		}
	}

	for (i = 0; i < 10; i++) {
		snd_ctl_elem_info_set_name(info, IPGA_VOLUME_NAME);
		snd_ctl_elem_info_set_numid(info, 0);
		snd_ctl_elem_info_set_index(info, i);
		if (snd_ctl_elem_info(ctl, info) < 0)
			break;
	}
	if (i < input_channels - 1)
		ipga_volumes = i;
	else
		ipga_volumes = input_channels;
}

void analog_volume_postinit(void)
{
	int i;

	for (i = 0; i < dac_volumes; i++) {
		dac_volume_update(i);
		dac_volume_adjust((GtkAdjustment *)av_dac_volume_adj[i], (gpointer)(long)i);
	}
	for (i = 0; i < adc_volumes; i++) {
		adc_volume_update(i);
		adc_volume_adjust((GtkAdjustment *)av_adc_volume_adj[i], (gpointer)(long)i);
	}
	for (i = 0; i < ipga_volumes; i++) {
		ipga_volume_update(i);
		ipga_volume_adjust((GtkAdjustment *)av_ipga_volume_adj[i], (gpointer)(long)i);
	}
	for (i = 0; i < dac_senses; i++)
		dac_sense_update(i);
	for (i = 0; i < adc_senses; i++)
		adc_sense_update(i);
}