Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=747c6016ced692db18d7e849e8cbdc523fba0874
Commit:     747c6016ced692db18d7e849e8cbdc523fba0874
Parent:     ccc80fb467a88ceb7ce1b68546632b91e5ba6c18
Author:     Clemens Ladisch <[EMAIL PROTECTED]>
AuthorDate: Wed Jan 16 08:32:53 2008 +0100
Committer:  Jaroslav Kysela <[EMAIL PROTECTED]>
CommitDate: Thu Jan 31 17:30:00 2008 +0100

    [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 <[EMAIL PROTECTED]>
    Signed-off-by: Jaroslav Kysela <[EMAIL PROTECTED]>
---
 sound/pci/oxygen/oxygen.c     |   13 +++++++++++++
 sound/pci/oxygen/oxygen.h     |    3 +++
 sound/pci/oxygen/oxygen_pcm.c |   10 ++++++++--
 3 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/sound/pci/oxygen/oxygen.c b/sound/pci/oxygen/oxygen.c
index adf91cc..f8e3fd3 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,
diff --git a/sound/pci/oxygen/oxygen.h b/sound/pci/oxygen/oxygen.h
index 7278c15..602105c 100644
--- a/sound/pci/oxygen/oxygen.h
+++ b/sound/pci/oxygen/oxygen.h
@@ -34,6 +34,7 @@ enum {
 struct pci_dev;
 struct snd_card;
 struct snd_pcm_substream;
+struct snd_pcm_hardware;
 struct snd_pcm_hw_params;
 struct snd_kcontrol_new;
 struct snd_rawmidi;
@@ -75,6 +76,8 @@ struct oxygen_model {
        int (*control_filter)(struct snd_kcontrol_new *template);
        int (*mixer_init)(struct oxygen *chip);
        void (*cleanup)(struct oxygen *chip);
+       void (*pcm_hardware_filter)(unsigned int channel,
+                                   struct snd_pcm_hardware *hardware);
        void (*set_dac_params)(struct oxygen *chip,
                               struct snd_pcm_hw_params *params);
        void (*set_adc_params)(struct oxygen *chip,
diff --git a/sound/pci/oxygen/oxygen_pcm.c b/sound/pci/oxygen/oxygen_pcm.c
index 5f15d35..5515c75 100644
--- a/sound/pci/oxygen/oxygen_pcm.c
+++ b/sound/pci/oxygen/oxygen_pcm.c
@@ -33,11 +33,15 @@ static struct snd_pcm_hardware oxygen_hardware[PCM_COUNT] = 
{
                        SNDRV_PCM_INFO_SYNC_START,
                .formats = SNDRV_PCM_FMTBIT_S16_LE |
                           SNDRV_PCM_FMTBIT_S32_LE,
-               .rates = SNDRV_PCM_RATE_44100 |
+               .rates = SNDRV_PCM_RATE_32000 |
+                        SNDRV_PCM_RATE_44100 |
                         SNDRV_PCM_RATE_48000 |
+                        SNDRV_PCM_RATE_64000 |
+                        SNDRV_PCM_RATE_88200 |
                         SNDRV_PCM_RATE_96000 |
+                        SNDRV_PCM_RATE_176400 |
                         SNDRV_PCM_RATE_192000,
-               .rate_min = 44100,
+               .rate_min = 32000,
                .rate_max = 192000,
                .channels_min = 2,
                .channels_max = 2,
@@ -182,6 +186,8 @@ static int oxygen_open(struct snd_pcm_substream *substream,
 
        runtime->private_data = (void *)(uintptr_t)channel;
        runtime->hw = oxygen_hardware[channel];
+       if (chip->model->pcm_hardware_filter)
+               chip->model->pcm_hardware_filter(channel, &runtime->hw);
        err = snd_pcm_hw_constraint_step(runtime, 0,
                                         SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32);
        if (err < 0)
-
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