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[ALSA] oxygen: make the number of analog output configurable 

Add a field to struct oxygen_model to allow model drivers for cards with
less than eight output channels.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Clemens Ladisch 2008-01-25 08:37:49 +01:00 committed by Jaroslav Kysela
parent 09189ac793
commit 976cd62700
5 changed files with 24 additions and 8 deletions
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2
sound/pci/oxygen/oxygen.c
View File

@ -350,6 +350,7 @@ static const struct oxygen_model model_generic = {
.update_dac_volume = update_ak4396_volume,
.update_dac_mute = update_ak4396_mute,
.model_data_size = sizeof(struct generic_data),
.dac_channels = 8,
.used_channels = OXYGEN_CHANNEL_A |
OXYGEN_CHANNEL_C |
OXYGEN_CHANNEL_SPDIF |
@ -372,6 +373,7 @@ static const struct oxygen_model model_meridian = {
.update_dac_volume = update_ak4396_volume,
.update_dac_mute = update_ak4396_mute,
.model_data_size = sizeof(struct generic_data),
.dac_channels = 8,
.used_channels = OXYGEN_CHANNEL_B |
OXYGEN_CHANNEL_C |
OXYGEN_CHANNEL_SPDIF |

1
sound/pci/oxygen/oxygen.h
View File

@ -85,6 +85,7 @@ struct oxygen_model {
void (*update_dac_volume)(struct oxygen *chip);
void (*update_dac_mute)(struct oxygen *chip);
size_t model_data_size;
u8 dac_channels;
u8 used_channels;
u8 function_flags;
u16 dac_i2s_format;

21
sound/pci/oxygen/oxygen_mixer.c
View File

@ -28,8 +28,10 @@
static int dac_volume_info(struct snd_kcontrol *ctl,
struct snd_ctl_elem_info *info)
{
struct oxygen *chip = ctl->private_data;
info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
info->count = 8;
info->count = chip->model->dac_channels;
info->value.integer.min = 0;
info->value.integer.max = 0xff;
return 0;
@ -42,7 +44,7 @@ static int dac_volume_get(struct snd_kcontrol *ctl,
unsigned int i;
mutex_lock(&chip->mutex);
for (i = 0; i < 8; ++i)
for (i = 0; i < chip->model->dac_channels; ++i)
value->value.integer.value[i] = chip->dac_volume[i];
mutex_unlock(&chip->mutex);
return 0;
@ -57,7 +59,7 @@ static int dac_volume_put(struct snd_kcontrol *ctl,
changed = 0;
mutex_lock(&chip->mutex);
for (i = 0; i < 8; ++i)
for (i = 0; i < chip->model->dac_channels; ++i)
if (value->value.integer.value[i] != chip->dac_volume[i]) {
chip->dac_volume[i] = value->value.integer.value[i];
changed = 1;
@ -100,11 +102,14 @@ static int upmix_info(struct snd_kcontrol *ctl, struct snd_ctl_elem_info *info)
static const char *const names[3] = {
"Front", "Front+Surround", "Front+Surround+Back"
};
struct oxygen *chip = ctl->private_data;
unsigned int count = 2 + (chip->model->dac_channels == 8);
info->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
info->count = 1;
info->value.enumerated.items = 3;
if (info->value.enumerated.item > 2)
info->value.enumerated.item = 2;
info->value.enumerated.items = count;
if (info->value.enumerated.item >= count)
info->value.enumerated.item = count - 1;
strcpy(info->value.enumerated.name, names[info->value.enumerated.item]);
return 0;
}
@ -167,12 +172,14 @@ void oxygen_update_dac_routing(struct oxygen *chip)
static int upmix_put(struct snd_kcontrol *ctl, struct snd_ctl_elem_value *value)
{
struct oxygen *chip = ctl->private_data;
unsigned int count = 2 + (chip->model->dac_channels == 8);
int changed;
mutex_lock(&chip->mutex);
changed = value->value.enumerated.item[0] != chip->dac_routing;
if (changed) {
chip->dac_routing = min(value->value.enumerated.item[0], 2u);
chip->dac_routing = min(value->value.enumerated.item[0],
count - 1);
spin_lock_irq(&chip->reg_lock);
oxygen_update_dac_routing(chip);
spin_unlock_irq(&chip->reg_lock);

7
sound/pci/oxygen/oxygen_pcm.c
View File

@ -119,10 +119,15 @@ static int oxygen_open(struct snd_pcm_substream *substream,
runtime->private_data = (void *)(uintptr_t)channel;
runtime->hw = *oxygen_hardware[channel];
if (channel == PCM_C) {
switch (channel) {
case PCM_C:
runtime->hw.rates &= ~(SNDRV_PCM_RATE_32000 |
SNDRV_PCM_RATE_64000);
runtime->hw.rate_min = 44100;
break;
case PCM_MULTICH:
runtime->hw.channels_max = chip->model->dac_channels;
break;
}
if (chip->model->pcm_hardware_filter)
chip->model->pcm_hardware_filter(channel, &runtime->hw);

1
sound/pci/oxygen/virtuoso.c
View File

@ -310,6 +310,7 @@ static const struct oxygen_model model_xonar = {
.set_adc_params = set_cs5381_params,
.update_dac_volume = update_pcm1796_volume,
.update_dac_mute = update_pcm1796_mute,
.dac_channels = 8,
.used_channels = OXYGEN_CHANNEL_B |
OXYGEN_CHANNEL_C |
OXYGEN_CHANNEL_SPDIF |