emumixer.c

linux 内核源代码

	EMU1010_ADC_PADS("ADC3 14dB PAD Audio Dock Capture Switch", EMU_HANA_DOCK_ADC_PAD3),
	EMU1010_ADC_PADS("ADC1 14dB PAD 0202 Capture Switch", EMU_HANA_0202_ADC_PAD1),
};

#define snd_emu1010_dac_pads_info	snd_ctl_boolean_mono_info

static int snd_emu1010_dac_pads_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
	unsigned int mask = kcontrol->private_value & 0xff;
	ucontrol->value.integer.value[0] = (emu->emu1010.dac_pads & mask) ? 1 : 0;
	return 0;
}

static int snd_emu1010_dac_pads_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
{
	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
	unsigned int mask = kcontrol->private_value & 0xff;
	unsigned int val, cache;
	val = ucontrol->value.integer.value[0];
	cache = emu->emu1010.dac_pads;
	if (val == 1) 
		cache = cache | mask;
	else
		cache = cache & ~mask;
	if (cache != emu->emu1010.dac_pads) {
		snd_emu1010_fpga_write(emu, EMU_HANA_DAC_PADS, cache );
	        emu->emu1010.dac_pads = cache;
	}

	return 0;
}



#define EMU1010_DAC_PADS(xname,chid) \
{								\
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,	\
	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,		\
	.info =  snd_emu1010_dac_pads_info,			\
	.get =   snd_emu1010_dac_pads_get,			\
	.put =   snd_emu1010_dac_pads_put,			\
	.private_value = chid					\
}

static struct snd_kcontrol_new snd_emu1010_dac_pads[] __devinitdata = {
	EMU1010_DAC_PADS("DAC1 Audio Dock 14dB PAD Playback Switch", EMU_HANA_DOCK_DAC_PAD1),
	EMU1010_DAC_PADS("DAC2 Audio Dock 14dB PAD Playback Switch", EMU_HANA_DOCK_DAC_PAD2),
	EMU1010_DAC_PADS("DAC3 Audio Dock 14dB PAD Playback Switch", EMU_HANA_DOCK_DAC_PAD3),
	EMU1010_DAC_PADS("DAC4 Audio Dock 14dB PAD Playback Switch", EMU_HANA_DOCK_DAC_PAD4),
	EMU1010_DAC_PADS("DAC1 0202 14dB PAD Playback Switch", EMU_HANA_0202_DAC_PAD1),
};


static int snd_emu1010_internal_clock_info(struct snd_kcontrol *kcontrol,
					  struct snd_ctl_elem_info *uinfo)
{
	static char *texts[4] = {
		"44100", "48000", "SPDIF", "ADAT"
	};
		
	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 4;
	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 snd_emu1010_internal_clock_get(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);

	ucontrol->value.enumerated.item[0] = emu->emu1010.internal_clock;
	return 0;
}

static int snd_emu1010_internal_clock_put(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
	unsigned int val;
	int change = 0;

	val = ucontrol->value.enumerated.item[0] ;
	/* Limit: uinfo->value.enumerated.items = 4; */
	if (val >= 4)
		return -EINVAL;
	change = (emu->emu1010.internal_clock != val);
	if (change) {
		emu->emu1010.internal_clock = val;
		switch (val) {
		case 0:
			/* 44100 */
			/* Mute all */
			snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_MUTE );
			/* Default fallback clock 48kHz */
			snd_emu1010_fpga_write(emu, EMU_HANA_DEFCLOCK, EMU_HANA_DEFCLOCK_44_1K );
			/* Word Clock source, Internal 44.1kHz x1 */
			snd_emu1010_fpga_write(emu, EMU_HANA_WCLOCK,
			EMU_HANA_WCLOCK_INT_44_1K | EMU_HANA_WCLOCK_1X );
			/* Set LEDs on Audio Dock */
			snd_emu1010_fpga_write(emu, EMU_HANA_DOCK_LEDS_2,
				EMU_HANA_DOCK_LEDS_2_44K | EMU_HANA_DOCK_LEDS_2_LOCK );
			/* Allow DLL to settle */
			msleep(10);
			/* Unmute all */
			snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_UNMUTE );
			break;
		case 1:
			/* 48000 */
			/* Mute all */
			snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_MUTE );
			/* Default fallback clock 48kHz */
			snd_emu1010_fpga_write(emu, EMU_HANA_DEFCLOCK, EMU_HANA_DEFCLOCK_48K );
			/* Word Clock source, Internal 48kHz x1 */
			snd_emu1010_fpga_write(emu, EMU_HANA_WCLOCK,
				EMU_HANA_WCLOCK_INT_48K | EMU_HANA_WCLOCK_1X );
			/* Set LEDs on Audio Dock */
			snd_emu1010_fpga_write(emu, EMU_HANA_DOCK_LEDS_2,
				EMU_HANA_DOCK_LEDS_2_48K | EMU_HANA_DOCK_LEDS_2_LOCK );
			/* Allow DLL to settle */
			msleep(10);
			/* Unmute all */
			snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_UNMUTE );
			break;
			
		case 2: /* Take clock from S/PDIF IN */
			/* Mute all */
			snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_MUTE );
			/* Default fallback clock 48kHz */
			snd_emu1010_fpga_write(emu, EMU_HANA_DEFCLOCK, EMU_HANA_DEFCLOCK_48K );
			/* Word Clock source, sync to S/PDIF input */
			snd_emu1010_fpga_write(emu, EMU_HANA_WCLOCK,
				EMU_HANA_WCLOCK_HANA_SPDIF_IN | EMU_HANA_WCLOCK_1X );
			/* Set LEDs on Audio Dock */
			snd_emu1010_fpga_write(emu, EMU_HANA_DOCK_LEDS_2,
				EMU_HANA_DOCK_LEDS_2_EXT | EMU_HANA_DOCK_LEDS_2_LOCK );
			/* FIXME: We should set EMU_HANA_DOCK_LEDS_2_LOCK only when clock signal is present and valid */	
			/* Allow DLL to settle */
			msleep(10);
			/* Unmute all */
			snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_UNMUTE );
			break;
		
		case 3: 			
			/* Take clock from ADAT IN */
			/* Mute all */
			snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_MUTE );
			/* Default fallback clock 48kHz */
			snd_emu1010_fpga_write(emu, EMU_HANA_DEFCLOCK, EMU_HANA_DEFCLOCK_48K );
			/* Word Clock source, sync to ADAT input */
			snd_emu1010_fpga_write(emu, EMU_HANA_WCLOCK,
				EMU_HANA_WCLOCK_HANA_ADAT_IN | EMU_HANA_WCLOCK_1X );
			/* Set LEDs on Audio Dock */
			snd_emu1010_fpga_write(emu, EMU_HANA_DOCK_LEDS_2, EMU_HANA_DOCK_LEDS_2_EXT | EMU_HANA_DOCK_LEDS_2_LOCK );
			/* FIXME: We should set EMU_HANA_DOCK_LEDS_2_LOCK only when clock signal is present and valid */	
			/* Allow DLL to settle */
			msleep(10);
			/*   Unmute all */
			snd_emu1010_fpga_write(emu, EMU_HANA_UNMUTE, EMU_UNMUTE );
			 
			
			break;		
		}
	}
        return change;
}

static struct snd_kcontrol_new snd_emu1010_internal_clock =
{
	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE,
	.iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
	.name =         "Clock Internal Rate",
	.count =	1,
	.info =         snd_emu1010_internal_clock_info,
	.get =          snd_emu1010_internal_clock_get,
	.put =          snd_emu1010_internal_clock_put
};

static int snd_audigy_i2c_capture_source_info(struct snd_kcontrol *kcontrol,
					  struct snd_ctl_elem_info *uinfo)
{
#if 0
	static char *texts[4] = {
		"Unknown1", "Unknown2", "Mic", "Line"
	};
#endif
	static char *texts[2] = {
		"Mic", "Line"
	};

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 2;
	if (uinfo->value.enumerated.item > 1)
                uinfo->value.enumerated.item = 1;
	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
	return 0;
}

static int snd_audigy_i2c_capture_source_get(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);

	ucontrol->value.enumerated.item[0] = emu->i2c_capture_source;
	return 0;
}

static int snd_audigy_i2c_capture_source_put(struct snd_kcontrol *kcontrol,
					struct snd_ctl_elem_value *ucontrol)
{
	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
	unsigned int source_id;
	unsigned int ngain, ogain;
	u32 gpio;
	int change = 0;
	unsigned long flags;
	u32 source;
	/* If the capture source has changed,
	 * update the capture volume from the cached value
	 * for the particular source.
	 */
	source_id = ucontrol->value.enumerated.item[0];
	/* Limit: uinfo->value.enumerated.items = 2; */
	/*        emu->i2c_capture_volume */
	if (source_id >= 2)
		return -EINVAL;
	change = (emu->i2c_capture_source != source_id);
	if (change) {
		snd_emu10k1_i2c_write(emu, ADC_MUX, 0); /* Mute input */
		spin_lock_irqsave(&emu->emu_lock, flags);
		gpio = inl(emu->port + A_IOCFG);
		if (source_id==0)
			outl(gpio | 0x4, emu->port + A_IOCFG);
		else
			outl(gpio & ~0x4, emu->port + A_IOCFG);
		spin_unlock_irqrestore(&emu->emu_lock, flags);

		ngain = emu->i2c_capture_volume[source_id][0]; /* Left */
		ogain = emu->i2c_capture_volume[emu->i2c_capture_source][0]; /* Left */
		if (ngain != ogain)
			snd_emu10k1_i2c_write(emu, ADC_ATTEN_ADCL, ((ngain) & 0xff));
		ngain = emu->i2c_capture_volume[source_id][1]; /* Right */
		ogain = emu->i2c_capture_volume[emu->i2c_capture_source][1]; /* Right */
		if (ngain != ogain)
			snd_emu10k1_i2c_write(emu, ADC_ATTEN_ADCR, ((ngain) & 0xff));

		source = 1 << (source_id + 2);
		snd_emu10k1_i2c_write(emu, ADC_MUX, source); /* Set source */
		emu->i2c_capture_source = source_id;
	}
        return change;
}

static struct snd_kcontrol_new snd_audigy_i2c_capture_source =
{
		.iface =	SNDRV_CTL_ELEM_IFACE_MIXER,
		.name =		"Capture Source",
		.info =		snd_audigy_i2c_capture_source_info,
		.get =		snd_audigy_i2c_capture_source_get,
		.put =		snd_audigy_i2c_capture_source_put
};

static int snd_audigy_i2c_volume_info(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_info *uinfo)
{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 2;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 255;
	return 0;
}

static int snd_audigy_i2c_volume_get(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
	unsigned int source_id;

	source_id = kcontrol->private_value;
	/* Limit: emu->i2c_capture_volume */
        /*        capture_source: uinfo->value.enumerated.items = 2 */
	if (source_id >= 2)
		return -EINVAL;

	ucontrol->value.integer.value[0] = emu->i2c_capture_volume[source_id][0];
	ucontrol->value.integer.value[1] = emu->i2c_capture_volume[source_id][1];
	return 0;
}

static int snd_audigy_i2c_volume_put(struct snd_kcontrol *kcontrol,
				 struct snd_ctl_elem_value *ucontrol)
{
	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
	unsigned int ogain;
	unsigned int ngain;
	unsigned int source_id;
	int change = 0;

	source_id = kcontrol->private_value;
	/* Limit: emu->i2c_capture_volume */
        /*        capture_source: uinfo->value.enumerated.items = 2 */
	if (source_id >= 2)
		return -EINVAL;
	ogain = emu->i2c_capture_volume[source_id][0]; /* Left */
	ngain = ucontrol->value.integer.value[0];
	if (ngain > 0xff)
		return 0;
	if (ogain != ngain) {
		if (emu->i2c_capture_source == source_id)
			snd_emu10k1_i2c_write(emu, ADC_ATTEN_ADCL, ((ngain) & 0xff) );
		emu->i2c_capture_volume[source_id][0] = ngain;
		change = 1;
	}
	ogain = emu->i2c_capture_volume[source_id][1]; /* Right */
	ngain = ucontrol->value.integer.value[1];
	if (ngain > 0xff)
		return 0;
	if (ogain != ngain) {
		if (emu->i2c_capture_source == source_id)
			snd_emu10k1_i2c_write(emu, ADC_ATTEN_ADCR, ((ngain) & 0xff));
		emu->i2c_capture_volume[source_id][1] = ngain;
		change = 1;
	}

	return change;
}

#define I2C_VOLUME(xname,chid) \
{								\
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,	\
	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |		\
	          SNDRV_CTL_ELEM_ACCESS_TLV_READ,		\
	.info =  snd_audigy_i2c_volume_info,			\
	.get =   snd_audigy_i2c_volume_get,			\
	.put =   snd_audigy_i2c_volume_put,			\
	.tlv = { .p = snd_audigy_db_scale2 },			\
	.private_value = chid					\
}


static struct snd_kcontrol_new snd_audigy_i2c_volume_ctls[] __devinitdata = {
	I2C_VOLUME("Mic Capture Volume", 0),
	I2C_VOLUME("Line Capture Volume", 0)
};

#if 0
static int snd_audigy_spdif_output_rate_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
{
	static char *texts[] = {"44100", "48000", "96000"};

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 3;
	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 snd_audigy_spdif_output_rate_get(struct snd_kcontrol *kcontrol,
                                 struct snd_ctl_elem_value *ucontrol)
{
	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
	unsigned int tmp;
	unsigned long flags;
	

	spin_lock_irqsave(&emu->reg_lock, flags);
	tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, 0);
	switch (tmp & A_SPDIF_RATE_MASK) {
	case A_SPDIF_44100:
		ucontrol->value.enumerated.item[0] = 0;
		break;
	case A_SPDIF_48000:
		ucontrol->value.enumerated.item[0] = 1;
		break;
	case A_SPDIF_96000:
		ucontrol->value.enumerated.item[0] = 2;
		break;
	default:
		ucontrol->value.enumerated.item[0] = 1;
	}
	spin_unlock_irqrestore(&emu->reg_lock, flags);
	return 0;
}

static int snd_audigy_spdif_output_rate_put(struct snd_kcontrol *kcontrol,
                                 struct snd_ctl_elem_value *ucontrol)
{
	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
	int change;
	unsigned int reg, val, tmp;
	unsigned long flags;

	switch(ucontrol->value.enumerated.item[0]) {
	case 0:
		val = A_SPDIF_44100;
		break;
	case 1:
		val = A_SPDIF_48000;
		break;
	case 2:
		val = A_SPDIF_96000;
		break;
	default:
		val = A_SPDIF_48000;
		break;
	}

	
	spin_lock_irqsave(&emu->reg_lock, flags);
	reg = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, 0);
	tmp = reg & ~A_SPDIF_RATE_MASK;
	tmp |= val;
	if ((change = (tmp != reg)))
		snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, 0, tmp);
	spin_unlock_irqrestore(&emu->reg_lock, flags);
	return change;
}

static struct snd_kcontrol_new snd_audigy_spdif_output_rate =
{
	.access =	SNDRV_CTL_ELEM_ACCESS_READWRITE,
	.iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
	.name =         "Audigy SPDIF Output Sample Rate",
	.count =	1,
	.info =         snd_audigy_spdif_output_rate_info,
	.get =          snd_audigy_spdif_output_rate_get,
	.put =          snd_audigy_spdif_output_rate_put
};
#endif

static int snd_emu10k1_spdif_put(struct snd_kcontrol *kcontrol,
                                 struct snd_ctl_elem_value *ucontrol)
{
	struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
	unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
	int change;
	unsigned int val;
	unsigned long flags;

	/* Limit: emu->spdif_bits */
	if (idx >= 3)
		return -EINVAL;
	val = (ucontrol->value.iec958.status[0] << 0) |
	      (ucontrol->value.iec958.status[1] << 8) |
	      (ucontrol->value.iec958.status[2] << 16) |
	      (ucontrol->value.iec958.status[3] << 24);
	spin_lock_irqsave(&emu->reg_lock, flags);
	change = val != emu->spdif_bits[idx];
	if (change) {
		snd_emu10k1_ptr_write(emu, SPCS0 + idx, 0, val);
		emu->spdif_bits[idx] = val;
	}
	spin_unlock_irqrestore(&emu->reg_lock, flags);
	return change;
}

static struct snd_kcontrol_new snd_emu10k1_spdif_mask_control =
{