aureon.c

鼎力推荐！本程序是基于嵌入式LUNUX系统开发的源程序代码

		"CD",
		"Coax"
	};
	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 2;
	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
	if (ice->eeprom.subvendor == VT1724_SUBDEVICE_PRODIGY71)
		strcpy(uinfo->value.enumerated.name, prodigy_texts[uinfo->value.enumerated.item]);
	else
		strcpy(uinfo->value.enumerated.name, aureon_texts[uinfo->value.enumerated.item]);
	return 0;
}

static int aureon_cs8415_mux_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	ice1712_t *ice = snd_kcontrol_chip(kcontrol);

	//snd_ice1712_save_gpio_status(ice);
	//val = aureon_cs8415_get(ice, CS8415_CTRL2);
	ucontrol->value.integer.value[0] = ice->spec.aureon.cs8415_mux;
	//snd_ice1712_restore_gpio_status(ice);
	return 0;
}

static int aureon_cs8415_mux_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
	unsigned short oval, nval;
	int change;

	snd_ice1712_save_gpio_status(ice);
	oval = aureon_cs8415_get(ice, CS8415_CTRL2);
	nval = oval & ~0x07;
	nval |= ucontrol->value.integer.value[0] & 7;
	change = (oval != nval);
	if (change)
		aureon_cs8415_put(ice, CS8415_CTRL2, nval);
	snd_ice1712_restore_gpio_status(ice);
	ice->spec.aureon.cs8415_mux = ucontrol->value.integer.value[0];
	return change;
}

static int aureon_cs8415_rate_info (snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 192000;
	return 0;
}

static int aureon_cs8415_rate_get (snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
	unsigned char ratio;
	ratio = aureon_cs8415_get(ice, CS8415_RATIO);
	ucontrol->value.integer.value[0] = (int)((unsigned int)ratio * 750);
	return 0;
}

/*
 * CS8415A Mute
 */
static int aureon_cs8415_mute_info (snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
	uinfo->count = 1;
	return 0;
}

static int aureon_cs8415_mute_get (snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
	snd_ice1712_save_gpio_status(ice);
	ucontrol->value.integer.value[0] = (aureon_cs8415_get(ice, CS8415_CTRL1) & 0x20) ? 0 : 1;
	snd_ice1712_restore_gpio_status(ice);
	return 0;
}

static int aureon_cs8415_mute_put (snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
	unsigned char oval, nval;
	int change;
	snd_ice1712_save_gpio_status(ice);
	oval = aureon_cs8415_get(ice, CS8415_CTRL1);
	if (ucontrol->value.integer.value[0])
		nval = oval & ~0x20;
	else
		nval = oval | 0x20;
	if ((change = (oval != nval)))
		aureon_cs8415_put(ice, CS8415_CTRL1, nval);
	snd_ice1712_restore_gpio_status(ice);
	return change;
}

/*
 * CS8415A Q-Sub info
 */
static int aureon_cs8415_qsub_info (snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo) {
	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
	uinfo->count = 10;
	return 0;
}

static int aureon_cs8415_qsub_get (snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) {
	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
	
	snd_ice1712_save_gpio_status(ice);
	aureon_cs8415_read(ice, CS8415_QSUB, ucontrol->value.bytes.data, 10);
	snd_ice1712_restore_gpio_status(ice);

	return 0;
}

static int aureon_cs8415_spdif_info (snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo) {
	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
	uinfo->count = 1;
	return 0;
}

static int aureon_cs8415_mask_get (snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) {
	memset(ucontrol->value.iec958.status, 0xFF, 24);
	return 0;
}

static int aureon_cs8415_spdif_get (snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol) {
	ice1712_t *ice = snd_kcontrol_chip(kcontrol);

	snd_ice1712_save_gpio_status(ice);
	aureon_cs8415_read(ice, CS8415_C_BUFFER, ucontrol->value.iec958.status, 24);
	snd_ice1712_restore_gpio_status(ice);
	return 0;
}

/*
 * Headphone Amplifier
 */
static int aureon_set_headphone_amp(ice1712_t *ice, int enable)
{
	unsigned int tmp, tmp2;

	tmp2 = tmp = snd_ice1712_gpio_read(ice);
	if (enable)
		tmp |= AUREON_HP_SEL;
	else
		tmp &= ~ AUREON_HP_SEL;
	if (tmp != tmp2) {
		snd_ice1712_gpio_write(ice, tmp);
		return 1;
	}
	return 0;
}

static int aureon_get_headphone_amp(ice1712_t *ice)
{
	unsigned int tmp = snd_ice1712_gpio_read(ice);

	return ( tmp & AUREON_HP_SEL )!= 0;
}

#define aureon_hpamp_info	aureon_mono_bool_info

static int aureon_hpamp_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	ice1712_t *ice = snd_kcontrol_chip(kcontrol);

	ucontrol->value.integer.value[0] = aureon_get_headphone_amp(ice);
	return 0;
}


static int aureon_hpamp_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	ice1712_t *ice = snd_kcontrol_chip(kcontrol);

	return aureon_set_headphone_amp(ice,ucontrol->value.integer.value[0]);
}

/*
 * Deemphasis
 */

#define aureon_deemp_info	aureon_mono_bool_info

static int aureon_deemp_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
	ucontrol->value.integer.value[0] = (wm_get(ice, WM_DAC_CTRL2) & 0xf) == 0xf;
	return 0;
}

static int aureon_deemp_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
	int temp, temp2;
	temp2 = temp = wm_get(ice, WM_DAC_CTRL2);
	if (ucontrol->value.integer.value[0])
		temp |= 0xf;
	else
		temp &= ~0xf;
	if (temp != temp2) {
		wm_put(ice, WM_DAC_CTRL2, temp);
		return 1;
	}
	return 0;
}

/*
 * ADC Oversampling
 */
static int aureon_oversampling_info(snd_kcontrol_t *k, snd_ctl_elem_info_t *uinfo)
{
	static char *texts[2] = { "128x", "64x"	};

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 2;

	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
		uinfo->value.enumerated.item = uinfo->value.enumerated.items - 1;
	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);

        return 0;
}

static int aureon_oversampling_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	ice1712_t *ice = snd_kcontrol_chip(kcontrol);
	ucontrol->value.enumerated.item[0] = (wm_get(ice, WM_MASTER) & 0x8) == 0x8;
	return 0;
}

static int aureon_oversampling_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
{
	int temp, temp2;
	ice1712_t *ice = snd_kcontrol_chip(kcontrol);

	temp2 = temp = wm_get(ice, WM_MASTER);

	if (ucontrol->value.enumerated.item[0])
		temp |= 0x8;
	else
		temp &= ~0x8;

	if (temp != temp2) {
		wm_put(ice, WM_MASTER, temp);
		return 1;
	}
	return 0;
}

/*
 * mixers
 */

static snd_kcontrol_new_t aureon_dac_controls[] __devinitdata = {
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "Master Playback Switch",
		.info = wm_master_mute_info,
		.get = wm_master_mute_get,
		.put = wm_master_mute_put
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "Master Playback Volume",
		.info = wm_master_vol_info,
		.get = wm_master_vol_get,
		.put = wm_master_vol_put
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "Front Playback Switch",
		.info = wm_mute_info,
		.get = wm_mute_get,
		.put = wm_mute_put,
		.private_value = (2 << 8) | 0
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "Front Playback Volume",
		.info = wm_vol_info,
		.get = wm_vol_get,
		.put = wm_vol_put,
		.private_value = (2 << 8) | 0
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "Rear Playback Switch",
		.info = wm_mute_info,
		.get = wm_mute_get,
		.put = wm_mute_put,
		.private_value = (2 << 8) | 2
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "Rear Playback Volume",
		.info = wm_vol_info,
		.get = wm_vol_get,
		.put = wm_vol_put,
		.private_value = (2 << 8) | 2
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "Center Playback Switch",
		.info = wm_mute_info,
		.get = wm_mute_get,
		.put = wm_mute_put,
		.private_value = (1 << 8) | 4
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "Center Playback Volume",
		.info = wm_vol_info,
		.get = wm_vol_get,
		.put = wm_vol_put,
		.private_value = (1 << 8) | 4
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "LFE Playback Switch",
		.info = wm_mute_info,
		.get = wm_mute_get,
		.put = wm_mute_put,
		.private_value = (1 << 8) | 5
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "LFE Playback Volume",
		.info = wm_vol_info,
		.get = wm_vol_get,
		.put = wm_vol_put,
		.private_value = (1 << 8) | 5
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "Side Playback Switch",
		.info = wm_mute_info,
		.get = wm_mute_get,
		.put = wm_mute_put,
		.private_value = (2 << 8) | 6
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "Side Playback Volume",
		.info = wm_vol_info,
		.get = wm_vol_get,
		.put = wm_vol_put,
		.private_value = (2 << 8) | 6
	}
};

static snd_kcontrol_new_t wm_controls[] __devinitdata = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "PCM Playback Switch",
		.info = wm_pcm_mute_info,
		.get = wm_pcm_mute_get,
		.put = wm_pcm_mute_put
 	},
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "PCM Playback Volume",
		.info = wm_pcm_vol_info,
		.get = wm_pcm_vol_get,
		.put = wm_pcm_vol_put
 	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "Capture Switch",
		.info = wm_adc_mute_info,
		.get = wm_adc_mute_get,
		.put = wm_adc_mute_put,
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "Capture Volume",
		.info = wm_adc_vol_info,
		.get = wm_adc_vol_get,
		.put = wm_adc_vol_put
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "Capture Source",
		.info = wm_adc_mux_info,
		.get = wm_adc_mux_get,
		.put = wm_adc_mux_put,
		.private_value = 5
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "External Amplifier",
		.info = aureon_hpamp_info,
		.get = aureon_hpamp_get,
		.put = aureon_hpamp_put
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "DAC Deemphasis Switch",
		.info = aureon_deemp_info,
		.get = aureon_deemp_get,
		.put = aureon_deemp_put
	},
	{
		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "ADC Oversampling",
		.info = aureon_oversampling_info,
		.get = aureon_oversampling_get,
		.put = aureon_oversampling_put
	}
};

static snd_kcontrol_new_t ac97_controls[] __devinitdata = {
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
		.name = "AC97 Playback Switch",
		.info = aureon_ac97_mmute_info,
		.get = aureon_ac97_mmute_get,
		.put = aureon_ac97_mmute_put,
		.private_value = AC97_MASTER
 	},
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "AC97 Playback Volume",
 		.info = aureon_ac97_vol_info,
 		.get = aureon_ac97_vol_get,
 		.put = aureon_ac97_vol_put,
 		.private_value = AC97_MASTER|AUREON_AC97_STEREO
 	},
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "CD Playback Switch",
 		.info = aureon_ac97_mute_info,
 		.get = aureon_ac97_mute_get,
 		.put = aureon_ac97_mute_put,
 		.private_value = AC97_CD
 	},
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "CD Playback Volume",
 		.info = aureon_ac97_vol_info,
 		.get = aureon_ac97_vol_get,
 		.put = aureon_ac97_vol_put,
 		.private_value = AC97_CD|AUREON_AC97_STEREO
 	},
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Aux Playback Switch",
 		.info = aureon_ac97_mute_info,
 		.get = aureon_ac97_mute_get,
 		.put = aureon_ac97_mute_put,
 		.private_value = AC97_AUX,
 	},
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Aux Playback Volume",
 		.info = aureon_ac97_vol_info,
 		.get = aureon_ac97_vol_get,
 		.put = aureon_ac97_vol_put,
 		.private_value = AC97_AUX|AUREON_AC97_STEREO
 	},
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Line Playback Switch",
 		.info = aureon_ac97_mute_info,
 		.get = aureon_ac97_mute_get,
 		.put = aureon_ac97_mute_put,
 		.private_value = AC97_LINE
 	},
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Line Playback Volume",
 		.info = aureon_ac97_vol_info,
 		.get = aureon_ac97_vol_get,
 		.put = aureon_ac97_vol_put,
 		.private_value = AC97_LINE|AUREON_AC97_STEREO
 	},
 	{
 		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 		.name = "Mic Playback Switch",
 		.info = aureon_ac97_mute_info,
 		.get = aureon_ac97_mute_get,
 		.put = aureon_ac97_mute_put,
 		.private_value = AC97_MIC
 	},