[ALSA] oxygen: make PCM limits configurable
Add a callback to the model structure to allow modification of the hardware PCM limits. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
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@ -163,6 +163,18 @@ static void generic_cleanup(struct oxygen *chip)
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{
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}
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static void generic_pcm_hardware_filter(unsigned int channel,
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struct snd_pcm_hardware *hardware)
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{
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if (channel == PCM_A) {
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hardware->rates = SNDRV_PCM_RATE_44100 |
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SNDRV_PCM_RATE_48000 |
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SNDRV_PCM_RATE_96000 |
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SNDRV_PCM_RATE_192000;
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hardware->rate_min = 44100;
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}
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}
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static void set_ak4396_params(struct oxygen *chip,
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struct snd_pcm_hw_params *params)
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{
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@ -262,6 +274,7 @@ static const struct oxygen_model model_generic = {
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.init = generic_init,
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.control_filter = ak4396_control_filter,
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.cleanup = generic_cleanup,
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.pcm_hardware_filter = generic_pcm_hardware_filter,
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.set_dac_params = set_ak4396_params,
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.set_adc_params = set_wm8785_params,
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.update_dac_volume = update_ak4396_volume,
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@ -34,6 +34,7 @@ enum {
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struct pci_dev;
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struct snd_card;
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struct snd_pcm_substream;
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struct snd_pcm_hardware;
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struct snd_pcm_hw_params;
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struct snd_kcontrol_new;
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struct snd_rawmidi;
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@ -75,6 +76,8 @@ struct oxygen_model {
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int (*control_filter)(struct snd_kcontrol_new *template);
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int (*mixer_init)(struct oxygen *chip);
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void (*cleanup)(struct oxygen *chip);
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void (*pcm_hardware_filter)(unsigned int channel,
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struct snd_pcm_hardware *hardware);
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void (*set_dac_params)(struct oxygen *chip,
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struct snd_pcm_hw_params *params);
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void (*set_adc_params)(struct oxygen *chip,
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@ -33,11 +33,15 @@ static struct snd_pcm_hardware oxygen_hardware[PCM_COUNT] = {
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SNDRV_PCM_INFO_SYNC_START,
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.formats = SNDRV_PCM_FMTBIT_S16_LE |
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SNDRV_PCM_FMTBIT_S32_LE,
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.rates = SNDRV_PCM_RATE_44100 |
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.rates = SNDRV_PCM_RATE_32000 |
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SNDRV_PCM_RATE_44100 |
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SNDRV_PCM_RATE_48000 |
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SNDRV_PCM_RATE_64000 |
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SNDRV_PCM_RATE_88200 |
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SNDRV_PCM_RATE_96000 |
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SNDRV_PCM_RATE_176400 |
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SNDRV_PCM_RATE_192000,
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.rate_min = 44100,
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.rate_min = 32000,
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.rate_max = 192000,
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.channels_min = 2,
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.channels_max = 2,
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@ -182,6 +186,8 @@ static int oxygen_open(struct snd_pcm_substream *substream,
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runtime->private_data = (void *)(uintptr_t)channel;
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runtime->hw = oxygen_hardware[channel];
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if (chip->model->pcm_hardware_filter)
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chip->model->pcm_hardware_filter(channel, &runtime->hw);
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err = snd_pcm_hw_constraint_step(runtime, 0,
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SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
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if (err < 0)
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