hdspm.c

linux 内核源代码

		strcpy(uinfo->value.enumerated.name,
				texts[uinfo->value.enumerated.item]);
	}
	return 0;
}

static int snd_hdspm_get_autosync_ref(struct snd_kcontrol *kcontrol,
				      struct snd_ctl_elem_value *ucontrol)
{
	struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);

	ucontrol->value.enumerated.item[0] = hdspm_autosync_ref(hdspm);
	return 0;
}

#define HDSPM_LINE_OUT(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
  .name = xname, \
  .index = xindex, \
  .info = snd_hdspm_info_line_out, \
  .get = snd_hdspm_get_line_out, \
  .put = snd_hdspm_put_line_out \
}

static int hdspm_line_out(struct hdspm * hdspm)
{
	return (hdspm->control_register & HDSPM_LineOut) ? 1 : 0;
}


static int hdspm_set_line_output(struct hdspm * hdspm, int out)
{
	if (out)
		hdspm->control_register |= HDSPM_LineOut;
	else
		hdspm->control_register &= ~HDSPM_LineOut;
	hdspm_write(hdspm, HDSPM_controlRegister, hdspm->control_register);

	return 0;
}

#define snd_hdspm_info_line_out		snd_ctl_boolean_mono_info

static int snd_hdspm_get_line_out(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);

	spin_lock_irq(&hdspm->lock);
	ucontrol->value.integer.value[0] = hdspm_line_out(hdspm);
	spin_unlock_irq(&hdspm->lock);
	return 0;
}

static int snd_hdspm_put_line_out(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);
	int change;
	unsigned int val;

	if (!snd_hdspm_use_is_exclusive(hdspm))
		return -EBUSY;
	val = ucontrol->value.integer.value[0] & 1;
	spin_lock_irq(&hdspm->lock);
	change = (int) val != hdspm_line_out(hdspm);
	hdspm_set_line_output(hdspm, val);
	spin_unlock_irq(&hdspm->lock);
	return change;
}

#define HDSPM_TX_64(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
  .name = xname, \
  .index = xindex, \
  .info = snd_hdspm_info_tx_64, \
  .get = snd_hdspm_get_tx_64, \
  .put = snd_hdspm_put_tx_64 \
}

static int hdspm_tx_64(struct hdspm * hdspm)
{
	return (hdspm->control_register & HDSPM_TX_64ch) ? 1 : 0;
}

static int hdspm_set_tx_64(struct hdspm * hdspm, int out)
{
	if (out)
		hdspm->control_register |= HDSPM_TX_64ch;
	else
		hdspm->control_register &= ~HDSPM_TX_64ch;
	hdspm_write(hdspm, HDSPM_controlRegister, hdspm->control_register);

	return 0;
}

#define snd_hdspm_info_tx_64		snd_ctl_boolean_mono_info

static int snd_hdspm_get_tx_64(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);

	spin_lock_irq(&hdspm->lock);
	ucontrol->value.integer.value[0] = hdspm_tx_64(hdspm);
	spin_unlock_irq(&hdspm->lock);
	return 0;
}

static int snd_hdspm_put_tx_64(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);
	int change;
	unsigned int val;

	if (!snd_hdspm_use_is_exclusive(hdspm))
		return -EBUSY;
	val = ucontrol->value.integer.value[0] & 1;
	spin_lock_irq(&hdspm->lock);
	change = (int) val != hdspm_tx_64(hdspm);
	hdspm_set_tx_64(hdspm, val);
	spin_unlock_irq(&hdspm->lock);
	return change;
}

#define HDSPM_C_TMS(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
  .name = xname, \
  .index = xindex, \
  .info = snd_hdspm_info_c_tms, \
  .get = snd_hdspm_get_c_tms, \
  .put = snd_hdspm_put_c_tms \
}

static int hdspm_c_tms(struct hdspm * hdspm)
{
	return (hdspm->control_register & HDSPM_clr_tms) ? 1 : 0;
}

static int hdspm_set_c_tms(struct hdspm * hdspm, int out)
{
	if (out)
		hdspm->control_register |= HDSPM_clr_tms;
	else
		hdspm->control_register &= ~HDSPM_clr_tms;
	hdspm_write(hdspm, HDSPM_controlRegister, hdspm->control_register);

	return 0;
}

#define snd_hdspm_info_c_tms		snd_ctl_boolean_mono_info

static int snd_hdspm_get_c_tms(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);

	spin_lock_irq(&hdspm->lock);
	ucontrol->value.integer.value[0] = hdspm_c_tms(hdspm);
	spin_unlock_irq(&hdspm->lock);
	return 0;
}

static int snd_hdspm_put_c_tms(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);
	int change;
	unsigned int val;

	if (!snd_hdspm_use_is_exclusive(hdspm))
		return -EBUSY;
	val = ucontrol->value.integer.value[0] & 1;
	spin_lock_irq(&hdspm->lock);
	change = (int) val != hdspm_c_tms(hdspm);
	hdspm_set_c_tms(hdspm, val);
	spin_unlock_irq(&hdspm->lock);
	return change;
}

#define HDSPM_SAFE_MODE(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
  .name = xname, \
  .index = xindex, \
  .info = snd_hdspm_info_safe_mode, \
  .get = snd_hdspm_get_safe_mode, \
  .put = snd_hdspm_put_safe_mode \
}

static int hdspm_safe_mode(struct hdspm * hdspm)
{
	return (hdspm->control_register & HDSPM_AutoInp) ? 1 : 0;
}

static int hdspm_set_safe_mode(struct hdspm * hdspm, int out)
{
	if (out)
		hdspm->control_register |= HDSPM_AutoInp;
	else
		hdspm->control_register &= ~HDSPM_AutoInp;
	hdspm_write(hdspm, HDSPM_controlRegister, hdspm->control_register);

	return 0;
}

#define snd_hdspm_info_safe_mode	snd_ctl_boolean_mono_info

static int snd_hdspm_get_safe_mode(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol)
{
	struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);

	spin_lock_irq(&hdspm->lock);
	ucontrol->value.integer.value[0] = hdspm_safe_mode(hdspm);
	spin_unlock_irq(&hdspm->lock);
	return 0;
}

static int snd_hdspm_put_safe_mode(struct snd_kcontrol *kcontrol,
				   struct snd_ctl_elem_value *ucontrol)
{
	struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);
	int change;
	unsigned int val;

	if (!snd_hdspm_use_is_exclusive(hdspm))
		return -EBUSY;
	val = ucontrol->value.integer.value[0] & 1;
	spin_lock_irq(&hdspm->lock);
	change = (int) val != hdspm_safe_mode(hdspm);
	hdspm_set_safe_mode(hdspm, val);
	spin_unlock_irq(&hdspm->lock);
	return change;
}

#define HDSPM_EMPHASIS(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
  .name = xname, \
  .index = xindex, \
  .info = snd_hdspm_info_emphasis, \
  .get = snd_hdspm_get_emphasis, \
  .put = snd_hdspm_put_emphasis \
}

static int hdspm_emphasis(struct hdspm * hdspm)
{
	return (hdspm->control_register & HDSPM_Emphasis) ? 1 : 0;
}

static int hdspm_set_emphasis(struct hdspm * hdspm, int emp)
{
	if (emp)
		hdspm->control_register |= HDSPM_Emphasis;
	else
		hdspm->control_register &= ~HDSPM_Emphasis;
	hdspm_write(hdspm, HDSPM_controlRegister, hdspm->control_register);

	return 0;
}

#define snd_hdspm_info_emphasis		snd_ctl_boolean_mono_info

static int snd_hdspm_get_emphasis(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);

	spin_lock_irq(&hdspm->lock);
	ucontrol->value.enumerated.item[0] = hdspm_emphasis(hdspm);
	spin_unlock_irq(&hdspm->lock);
	return 0;
}

static int snd_hdspm_put_emphasis(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);
	int change;
	unsigned int val;

	if (!snd_hdspm_use_is_exclusive(hdspm))
		return -EBUSY;
	val = ucontrol->value.integer.value[0] & 1;
	spin_lock_irq(&hdspm->lock);
	change = (int) val != hdspm_emphasis(hdspm);
	hdspm_set_emphasis(hdspm, val);
	spin_unlock_irq(&hdspm->lock);
	return change;
}

#define HDSPM_DOLBY(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
  .name = xname, \
  .index = xindex, \
  .info = snd_hdspm_info_dolby, \
  .get = snd_hdspm_get_dolby, \
  .put = snd_hdspm_put_dolby \
}

static int hdspm_dolby(struct hdspm * hdspm)
{
	return (hdspm->control_register & HDSPM_Dolby) ? 1 : 0;
}

static int hdspm_set_dolby(struct hdspm * hdspm, int dol)
{
	if (dol)
		hdspm->control_register |= HDSPM_Dolby;
	else
		hdspm->control_register &= ~HDSPM_Dolby;
	hdspm_write(hdspm, HDSPM_controlRegister, hdspm->control_register);

	return 0;
}

#define snd_hdspm_info_dolby		snd_ctl_boolean_mono_info

static int snd_hdspm_get_dolby(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);

	spin_lock_irq(&hdspm->lock);
	ucontrol->value.enumerated.item[0] = hdspm_dolby(hdspm);
	spin_unlock_irq(&hdspm->lock);
	return 0;
}

static int snd_hdspm_put_dolby(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);
	int change;
	unsigned int val;

	if (!snd_hdspm_use_is_exclusive(hdspm))
		return -EBUSY;
	val = ucontrol->value.integer.value[0] & 1;
	spin_lock_irq(&hdspm->lock);
	change = (int) val != hdspm_dolby(hdspm);
	hdspm_set_dolby(hdspm, val);
	spin_unlock_irq(&hdspm->lock);
	return change;
}

#define HDSPM_PROFESSIONAL(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
  .name = xname, \
  .index = xindex, \
  .info = snd_hdspm_info_professional, \
  .get = snd_hdspm_get_professional, \
  .put = snd_hdspm_put_professional \
}

static int hdspm_professional(struct hdspm * hdspm)
{
	return (hdspm->control_register & HDSPM_Professional) ? 1 : 0;
}

static int hdspm_set_professional(struct hdspm * hdspm, int dol)
{
	if (dol)
		hdspm->control_register |= HDSPM_Professional;
	else
		hdspm->control_register &= ~HDSPM_Professional;
	hdspm_write(hdspm, HDSPM_controlRegister, hdspm->control_register);

	return 0;
}

#define snd_hdspm_info_professional	snd_ctl_boolean_mono_info

static int snd_hdspm_get_professional(struct snd_kcontrol *kcontrol,
				      struct snd_ctl_elem_value *ucontrol)
{
	struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);

	spin_lock_irq(&hdspm->lock);
	ucontrol->value.enumerated.item[0] = hdspm_professional(hdspm);
	spin_unlock_irq(&hdspm->lock);
	return 0;
}

static int snd_hdspm_put_professional(struct snd_kcontrol *kcontrol,
				      struct snd_ctl_elem_value *ucontrol)
{
	struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);
	int change;
	unsigned int val;

	if (!snd_hdspm_use_is_exclusive(hdspm))
		return -EBUSY;
	val = ucontrol->value.integer.value[0] & 1;
	spin_lock_irq(&hdspm->lock);
	change = (int) val != hdspm_professional(hdspm);
	hdspm_set_professional(hdspm, val);
	spin_unlock_irq(&hdspm->lock);
	return change;
}

#define HDSPM_INPUT_SELECT(xname, xindex) \
{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
  .name = xname, \
  .index = xindex, \
  .info = snd_hdspm_info_input_select, \
  .get = snd_hdspm_get_input_select, \
  .put = snd_hdspm_put_input_select \
}

static int hdspm_input_select(struct hdspm * hdspm)
{
	return (hdspm->control_register & HDSPM_InputSelect0) ? 1 : 0;
}

static int hdspm_set_input_select(struct hdspm * hdspm, int out)
{
	if (out)
		hdspm->control_register |= HDSPM_InputSelect0;
	else
		hdspm->control_register &= ~HDSPM_InputSelect0;
	hdspm_write(hdspm, HDSPM_controlRegister, hdspm->control_register);

	return 0;
}

static int snd_hdspm_info_input_select(struct snd_kcontrol *kcontrol,
				       struct snd_ctl_elem_info *uinfo)
{
	static char *texts[] = { "optical", "coaxial" };

	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_hdspm_get_input_select(struct snd_kcontrol *kcontrol,
				      struct snd_ctl_elem_value *ucontrol)
{
	struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);

	spin_lock_irq(&hdspm->lock);
	ucontrol->value.enumerated.item[0] = hdspm_input_select(hdspm);
	spin_unlock_irq(&hdspm->lock);
	return 0;
}

static int snd_hdspm_put_input_select(struct snd_kcontrol *kcontrol,
				      struct snd_ctl_elem_value *ucontrol)
{
	struct hdspm *hdspm = snd_kcontrol_chip(kcontrol);
	int