[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>

1 files changed, 13 insertions, 0 deletions

diff --git a/sound/pci/oxygen/oxygen.c b/sound/pci/oxygen/oxygen.c
index adf91cc3e1ae..f8e3fd39749d 100644
--- a/sound/pci/oxygen/oxygen.c
+++ b/sound/pci/oxygen/oxygen.c
@@ -163,6 +163,18 @@ static void generic_cleanup(struct oxygen *chip)
 {
 }
 
+static void generic_pcm_hardware_filter(unsigned int channel,
+                                        struct snd_pcm_hardware *hardware)
+{
+        if (channel == PCM_A) {
+                hardware->rates = SNDRV_PCM_RATE_44100 |
+                                  SNDRV_PCM_RATE_48000 |
+                                  SNDRV_PCM_RATE_96000 |
+                                  SNDRV_PCM_RATE_192000;
+                hardware->rate_min = 44100;
+        }
+}
+
 static void set_ak4396_params(struct oxygen *chip,
                               struct snd_pcm_hw_params *params)
 {
@@ -262,6 +274,7 @@ static const struct oxygen_model model_generic = {
         .init = generic_init,
         .control_filter = ak4396_control_filter,
         .cleanup = generic_cleanup,
+        .pcm_hardware_filter = generic_pcm_hardware_filter,
         .set_dac_params = set_ak4396_params,
         .set_adc_params = set_wm8785_params,
         .update_dac_volume = update_ak4396_volume,