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Commit d4b06d23 authored by Eliot Blennerhassett's avatar Eliot Blennerhassett Committed by Takashi Iwai
Browse files

ALSA: asihpi - Volumes and meters may have 1 or 2 channels. 



The channel count can be queried to determine which.

Signed-off-by: default avatarEliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent c382a5da

sound/pci/asihpi/asihpi.c

+14 −2
Original line number Diff line number Diff line
@@ -1410,6 +1410,7 @@ static int snd_asihpi_volume_info(struct snd_kcontrol *kcontrol, 
				  struct snd_ctl_elem_info *uinfo)

{

	u32 h_control = kcontrol->private_value;

	u32 count;

	u16 err;

	/* native gains are in millibels */

	short min_gain_mB;
@@ -1424,8 +1425,12 @@ static int snd_asihpi_volume_info(struct snd_kcontrol *kcontrol, 
		step_gain_mB = VOL_STEP_mB;

	}



	err = hpi_meter_query_channels(h_control, &count);

	if (err)

		count = HPI_MAX_CHANNELS;



	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;

	uinfo->count = 2;

	uinfo->count = count;

	uinfo->value.integer.min = min_gain_mB / VOL_STEP_mB;

	uinfo->value.integer.max = max_gain_mB / VOL_STEP_mB;

	uinfo->value.integer.step = step_gain_mB / VOL_STEP_mB;
@@ -2033,8 +2038,15 @@ static int __devinit snd_asihpi_tuner_add(struct snd_card_asihpi *asihpi, 
static int snd_asihpi_meter_info(struct snd_kcontrol *kcontrol,

				 struct snd_ctl_elem_info *uinfo)

{

	u32 h_control = kcontrol->private_value;

	u32 count;

	u16 err;

	err = hpi_meter_query_channels(h_control, &count);

	if (err)

		count = HPI_MAX_CHANNELS;



	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;

	uinfo->count = HPI_MAX_CHANNELS;

	uinfo->count = count;

	uinfo->value.integer.min = 0;

	uinfo->value.integer.max = 0x7FFFFFFF;

	return 0;