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[ALSA] oxygen: add front panel capture 

When a second AC97 codec is present, add a PCM device for capturing from
the front panel.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Clemens Ladisch 2008-01-28 08:35:47 +01:00 committed by Jaroslav Kysela
parent a360156049
commit 5f7b9b4577
1 changed files with 34 additions and 18 deletions
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52
sound/pci/oxygen/oxygen_pcm.c
View File

@ -118,7 +118,11 @@ static int oxygen_open(struct snd_pcm_substream *substream,
int err;
runtime->private_data = (void *)(uintptr_t)channel;
runtime->hw = *oxygen_hardware[channel];
if (channel == PCM_B && chip->has_ac97_1 &&
(chip->model->used_channels & OXYGEN_CHANNEL_AC97))
runtime->hw = oxygen_ac97_hardware;
else
runtime->hw = *oxygen_hardware[channel];
switch (channel) {
case PCM_C:
runtime->hw.rates &= ~(SNDRV_PCM_RATE_32000 |
@ -353,30 +357,37 @@ static int oxygen_rec_b_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *hw_params)
{
struct oxygen *chip = snd_pcm_substream_chip(substream);
int is_ac97;
int err;
err = oxygen_hw_params(substream, hw_params);
if (err < 0)
return err;
is_ac97 = chip->has_ac97_1 &&
(chip->model->used_channels & OXYGEN_CHANNEL_AC97);
spin_lock_irq(&chip->reg_lock);
oxygen_write8_masked(chip, OXYGEN_REC_FORMAT,
oxygen_format(hw_params) << OXYGEN_REC_FORMAT_B_SHIFT,
OXYGEN_REC_FORMAT_B_MASK);
oxygen_write16_masked(chip, OXYGEN_I2S_B_FORMAT,
oxygen_rate(hw_params) |
oxygen_i2s_mclk(hw_params) |
chip->model->adc_i2s_format |
oxygen_i2s_bits(hw_params),
OXYGEN_I2S_RATE_MASK |
OXYGEN_I2S_FORMAT_MASK |
OXYGEN_I2S_MCLK_MASK |
OXYGEN_I2S_BITS_MASK);
if (!is_ac97)
oxygen_write16_masked(chip, OXYGEN_I2S_B_FORMAT,
oxygen_rate(hw_params) |
oxygen_i2s_mclk(hw_params) |
chip->model->adc_i2s_format |
oxygen_i2s_bits(hw_params),
OXYGEN_I2S_RATE_MASK |
OXYGEN_I2S_FORMAT_MASK |
OXYGEN_I2S_MCLK_MASK |
OXYGEN_I2S_BITS_MASK);
spin_unlock_irq(&chip->reg_lock);
mutex_lock(&chip->mutex);
chip->model->set_adc_params(chip, hw_params);
mutex_unlock(&chip->mutex);
if (!is_ac97) {
mutex_lock(&chip->mutex);
chip->model->set_adc_params(chip, hw_params);
mutex_unlock(&chip->mutex);
}
return 0;
}
@ -677,23 +688,28 @@ int __devinit oxygen_pcm_init(struct oxygen *chip)
outs = chip->has_ac97_1 &&
(chip->model->used_channels & OXYGEN_CHANNEL_AC97);
ins = (chip->model->used_channels & (OXYGEN_CHANNEL_A |
OXYGEN_CHANNEL_B))
ins = outs ||
(chip->model->used_channels & (OXYGEN_CHANNEL_A |
OXYGEN_CHANNEL_B))
== (OXYGEN_CHANNEL_A | OXYGEN_CHANNEL_B);
if (outs | ins) {
err = snd_pcm_new(chip->card, ins ? "Analog2" : "AC97",
err = snd_pcm_new(chip->card, outs ? "AC97" : "Analog2",
2, outs, ins, &pcm);
if (err < 0)
return err;
if (outs)
if (outs) {
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
&oxygen_ac97_ops);
oxygen_write8_masked(chip, OXYGEN_REC_ROUTING,
OXYGEN_REC_B_ROUTE_AC97_1,
OXYGEN_REC_B_ROUTE_MASK);
}
if (ins)
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
&oxygen_rec_b_ops);
pcm->private_data = chip;
pcm->private_free = oxygen_pcm_free;
strcpy(pcm->name, ins ? "Analog 2" : "Front Panel");
strcpy(pcm->name, outs ? "Front Panel" : "Analog 2");
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_dma_pci_data(chip->pci),
128 * 1024, 256 * 1024);