hdsp.c

优龙2410linux2.6.8内核源代码

	hdsp_set_spdif_professional(hdsp, val);
	spin_unlock_irqrestore(&hdsp->lock, flags);
	return change;
}

#define HDSP_SPDIF_EMPHASIS(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_HWDEP, .name = xname, .index = xindex, \
  .info = snd_hdsp_info_spdif_bits, \
  .get = snd_hdsp_get_spdif_emphasis, .put = snd_hdsp_put_spdif_emphasis }

static int hdsp_spdif_emphasis(hdsp_t *hdsp)
{
	return (hdsp->control_register & HDSP_SPDIFEmphasis) ? 1 : 0;
}

static int hdsp_set_spdif_emphasis(hdsp_t *hdsp, int val)
{
	if (val) {
		hdsp->control_register |= HDSP_SPDIFEmphasis;
	} else {
		hdsp->control_register &= ~HDSP_SPDIFEmphasis;
	}
	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
	return 0;
}

static int snd_hdsp_get_spdif_emphasis(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	hdsp_t *hdsp = _snd_kcontrol_chip(kcontrol);
	
	ucontrol->value.integer.value[0] = hdsp_spdif_emphasis(hdsp);
	return 0;
}

static int snd_hdsp_put_spdif_emphasis(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	hdsp_t *hdsp = _snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int change;
	unsigned int val;
	
	if (!snd_hdsp_use_is_exclusive(hdsp))
		return -EBUSY;
	val = ucontrol->value.integer.value[0] & 1;
	spin_lock_irqsave(&hdsp->lock, flags);
	change = (int)val != hdsp_spdif_emphasis(hdsp);
	hdsp_set_spdif_emphasis(hdsp, val);
	spin_unlock_irqrestore(&hdsp->lock, flags);
	return change;
}

#define HDSP_SPDIF_NON_AUDIO(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_HWDEP, .name = xname, .index = xindex, \
  .info = snd_hdsp_info_spdif_bits, \
  .get = snd_hdsp_get_spdif_nonaudio, .put = snd_hdsp_put_spdif_nonaudio }

static int hdsp_spdif_nonaudio(hdsp_t *hdsp)
{
	return (hdsp->control_register & HDSP_SPDIFNonAudio) ? 1 : 0;
}

static int hdsp_set_spdif_nonaudio(hdsp_t *hdsp, int val)
{
	if (val) {
		hdsp->control_register |= HDSP_SPDIFNonAudio;
	} else {
		hdsp->control_register &= ~HDSP_SPDIFNonAudio;
	}
	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
	return 0;
}

static int snd_hdsp_get_spdif_nonaudio(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	hdsp_t *hdsp = _snd_kcontrol_chip(kcontrol);
	
	ucontrol->value.integer.value[0] = hdsp_spdif_nonaudio(hdsp);
	return 0;
}

static int snd_hdsp_put_spdif_nonaudio(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	hdsp_t *hdsp = _snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int change;
	unsigned int val;
	
	if (!snd_hdsp_use_is_exclusive(hdsp))
		return -EBUSY;
	val = ucontrol->value.integer.value[0] & 1;
	spin_lock_irqsave(&hdsp->lock, flags);
	change = (int)val != hdsp_spdif_nonaudio(hdsp);
	hdsp_set_spdif_nonaudio(hdsp, val);
	spin_unlock_irqrestore(&hdsp->lock, flags);
	return change;
}

#define HDSP_SPDIF_SAMPLE_RATE(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_HWDEP, \
  .name = xname, \
  .index = xindex, \
  .access = SNDRV_CTL_ELEM_ACCESS_READ, \
  .info = snd_hdsp_info_spdif_sample_rate, \
  .get = snd_hdsp_get_spdif_sample_rate \
}

static int snd_hdsp_info_spdif_sample_rate(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	static char *texts[] = {"32000", "44100", "48000", "64000", "88200", "96000", "None", "128000", "176400", "192000"};
	hdsp_t *hdsp = _snd_kcontrol_chip(kcontrol);

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = (hdsp->io_type == H9632) ? 10 : 7;
	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_hdsp_get_spdif_sample_rate(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	hdsp_t *hdsp = _snd_kcontrol_chip(kcontrol);
	
	switch (hdsp_spdif_sample_rate(hdsp)) {
	case 32000:
		ucontrol->value.enumerated.item[0] = 0;
		break;
	case 44100:
		ucontrol->value.enumerated.item[0] = 1;
		break;
	case 48000:
		ucontrol->value.enumerated.item[0] = 2;
		break;
	case 64000:
		ucontrol->value.enumerated.item[0] = 3;
		break;
	case 88200:
		ucontrol->value.enumerated.item[0] = 4;
		break;
	case 96000:
		ucontrol->value.enumerated.item[0] = 5;
		break;
	case 128000:
		ucontrol->value.enumerated.item[0] = 7;
		break;
	case 176400:
		ucontrol->value.enumerated.item[0] = 8;
		break;
	case 192000:
		ucontrol->value.enumerated.item[0] = 9;
		break;
	default:
		ucontrol->value.enumerated.item[0] = 6;		
	}
	return 0;
}

#define HDSP_SYSTEM_SAMPLE_RATE(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_HWDEP, \
  .name = xname, \
  .index = xindex, \
  .access = SNDRV_CTL_ELEM_ACCESS_READ, \
  .info = snd_hdsp_info_system_sample_rate, \
  .get = snd_hdsp_get_system_sample_rate \
}

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

static int snd_hdsp_get_system_sample_rate(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	hdsp_t *hdsp = _snd_kcontrol_chip(kcontrol);
	
	ucontrol->value.enumerated.item[0] = hdsp->system_sample_rate;
	return 0;
}

#define HDSP_AUTOSYNC_SAMPLE_RATE(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_PCM, \
  .name = xname, \
  .index = xindex, \
  .access = SNDRV_CTL_ELEM_ACCESS_READ, \
  .info = snd_hdsp_info_autosync_sample_rate, \
  .get = snd_hdsp_get_autosync_sample_rate \
}

static int snd_hdsp_info_autosync_sample_rate(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	hdsp_t *hdsp = _snd_kcontrol_chip(kcontrol);
	static char *texts[] = {"32000", "44100", "48000", "64000", "88200", "96000", "None", "128000", "176400", "192000"};	
	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = (hdsp->io_type == H9632) ? 10 : 7 ;
	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_hdsp_get_autosync_sample_rate(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	hdsp_t *hdsp = _snd_kcontrol_chip(kcontrol);
	
	switch (hdsp_external_sample_rate(hdsp)) {
	case 32000:
		ucontrol->value.enumerated.item[0] = 0;
		break;
	case 44100:
		ucontrol->value.enumerated.item[0] = 1;
		break;
	case 48000:
		ucontrol->value.enumerated.item[0] = 2;
		break;
	case 64000:
		ucontrol->value.enumerated.item[0] = 3;
		break;
	case 88200:
		ucontrol->value.enumerated.item[0] = 4;
		break;
	case 96000:
		ucontrol->value.enumerated.item[0] = 5;
		break;
	case 128000:
		ucontrol->value.enumerated.item[0] = 7;
		break;
	case 176400:
		ucontrol->value.enumerated.item[0] = 8;
		break;
	case 192000:
		ucontrol->value.enumerated.item[0] = 9;
		break;	
	default:
		ucontrol->value.enumerated.item[0] = 6;		
	}
	return 0;
}

#define HDSP_SYSTEM_CLOCK_MODE(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_HWDEP, \
  .name = xname, \
  .index = xindex, \
  .access = SNDRV_CTL_ELEM_ACCESS_READ, \
  .info = snd_hdsp_info_system_clock_mode, \
  .get = snd_hdsp_get_system_clock_mode \
}

static int hdsp_system_clock_mode(hdsp_t *hdsp)
{
	if (hdsp->control_register & HDSP_ClockModeMaster) {
		return 0;
	} else if (hdsp_external_sample_rate(hdsp) != hdsp->system_sample_rate) {
			return 0;
	}
	return 1;
}

static int snd_hdsp_info_system_clock_mode(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	static char *texts[] = {"Master", "Slave" };
	
	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 snd_hdsp_get_system_clock_mode(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	hdsp_t *hdsp = _snd_kcontrol_chip(kcontrol);
	
	ucontrol->value.enumerated.item[0] = hdsp_system_clock_mode(hdsp);
	return 0;
}

#define HDSP_CLOCK_SOURCE(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_PCM, \
  .name = xname, \
  .index = xindex, \
  .info = snd_hdsp_info_clock_source, \
  .get = snd_hdsp_get_clock_source, \
  .put = snd_hdsp_put_clock_source \
}

static int hdsp_clock_source(hdsp_t *hdsp)
{
	if (hdsp->control_register & HDSP_ClockModeMaster) {
		switch (hdsp->system_sample_rate) {
		case 32000:
			return 1;
		case 44100:
			return 2;
		case 48000:
			return 3;
		case 64000:
			return 4;
		case 88200:
			return 5;
		case 96000:
			return 6;
		case 128000:
			return 7;
		case 176400:
			return 8;
		case 192000:
			return 9;
		default:
			return 3;	
		}
	} else {
		return 0;
	}
}

static int hdsp_set_clock_source(hdsp_t *hdsp, int mode)
{
	int rate;
	switch (mode) {
	case HDSP_CLOCK_SOURCE_AUTOSYNC:
		if (hdsp_external_sample_rate(hdsp) != 0) {
		    if (!hdsp_set_rate(hdsp, hdsp_external_sample_rate(hdsp), 1)) {
			hdsp->control_register &= ~HDSP_ClockModeMaster;		
			hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
			return 0;
		    }
		}
		return -1;
	case HDSP_CLOCK_SOURCE_INTERNAL_32KHZ:
		rate = 32000;
		break;
	case HDSP_CLOCK_SOURCE_INTERNAL_44_1KHZ:
		rate = 44100;
		break;	    
	case HDSP_CLOCK_SOURCE_INTERNAL_48KHZ:
		rate = 48000;
		break;
	case HDSP_CLOCK_SOURCE_INTERNAL_64KHZ:
		rate = 64000;
		break;
	case HDSP_CLOCK_SOURCE_INTERNAL_88_2KHZ:
		rate = 88200;
		break;
	case HDSP_CLOCK_SOURCE_INTERNAL_96KHZ:
		rate = 96000;
		break;
	case HDSP_CLOCK_SOURCE_INTERNAL_128KHZ:
		rate = 128000;
		break;
	case HDSP_CLOCK_SOURCE_INTERNAL_176_4KHZ:
		rate = 176400;
		break;
	case HDSP_CLOCK_SOURCE_INTERNAL_192KHZ:
		rate = 192000;
		break;
	default:
		rate = 48000;
	}
	hdsp->control_register |= HDSP_ClockModeMaster;
	hdsp_write(hdsp, HDSP_controlRegister, hdsp->control_register);
	hdsp_set_rate(hdsp, rate, 1);
	return 0;
}

static int snd_hdsp_info_clock_source(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
{
	static char *texts[] = {"AutoSync", "Internal 32.0 kHz", "Internal 44.1 kHz", "Internal 48.0 kHz", "Internal 64.0 kHz", "Internal 88.2 kHz", "Internal 96.0 kHz", "Internal 128 kHz", "Internal 176.4 kHz", "Internal 192.0 KHz" };
	hdsp_t *hdsp = _snd_kcontrol_chip(kcontrol);
	
	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	if (hdsp->io_type == H9632)
	    uinfo->value.enumerated.items = 10;
	else
	    uinfo->value.enumerated.items = 7;	
	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_hdsp_get_clock_source(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	hdsp_t *hdsp = _snd_kcontrol_chip(kcontrol);
	
	ucontrol->value.enumerated.item[0] = hdsp_clock_source(hdsp);
	return 0;
}

static int snd_hdsp_put_clock_source(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol)
{
	hdsp_t *hdsp = _snd_kcontrol_chip(kcontrol);
	unsigned long flags;
	int change;
	int val;
	
	if (!snd_hdsp_use_is_exclusive(hdsp))
		return -EBUSY;
	val = ucontrol->value.enumerated.item[0];
	if (val < 0) val = 0;
	if (hdsp->io_type == H9632) {
	    if (val > 9) val = 9;
	} else {
	    if (val > 6) val = 6;
	}
	spin_lock_irqsave(&hdsp->lock, flags);
	if (val != hdsp_clock_source(hdsp)) {
		change = (hdsp_set_clock_source(hdsp, val) == 0) ? 1 : 0;
	} else {
		change = 0;
	}
	spin_unlock_irqrestore(&hdsp->lock, flags);
	return change;
}

#define HDSP_DA_GAIN(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_HWDEP, \
  .name = xname, \
  .index = xindex, \
  .info = snd_hdsp_info_da_gain, \
  .get = snd_hdsp_get_da_gain, \
  .put = snd_hdsp_put_da_gain \
}

static int hdsp_da_gain(hdsp_t *hdsp)
{
	switch (hdsp->control_register & HDSP_DAGainMask) {
	case HDSP_DAGainHighGain:
		return 0;
	case HDSP_DAGainPlus4dBu:
		return 1;
	case HDSP_DAGainMinus10dBV:
		return 2;
	default:
		return 1;	
	}
}

static int hdsp_set_da_gain(hdsp_t *hdsp, int m