[alsa-devel] [PATCH] ASoC: bt-sco: support wide band speech

Barry Song 21cnbao at gmail.com
Mon Nov 24 13:58:37 CET 2014


2014-11-24 20:45 GMT+08:00 Lars-Peter Clausen <lars at metafoo.de>:
> On 11/24/2014 01:29 PM, Barry Song wrote:
>>
>> From: Yibo Cai <yibo.cai at csr.com>
>>
>> HFP1.6 requires support for wide band speech(16KHz) over Bluetooth.
>>
>> Signed-off-by: Yibo Cai <yibo.cai at csr.com>
>> Signed-off-by: Barry Song <Baohua.Song at csr.com>
>> ---
>>   sound/soc/codecs/bt-sco.c | 4 ++--
>>   1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/sound/soc/codecs/bt-sco.c b/sound/soc/codecs/bt-sco.c
>> index c4cf069..fc0664b 100644
>> --- a/sound/soc/codecs/bt-sco.c
>> +++ b/sound/soc/codecs/bt-sco.c
>> @@ -31,14 +31,14 @@ static struct snd_soc_dai_driver bt_sco_dai = {
>>                 .stream_name = "Playback",
>>                 .channels_min = 1,
>>                 .channels_max = 1,
>> -               .rates = SNDRV_PCM_RATE_8000,
>> +               .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000,
>
>
> This will break those bluetooth modules that only work with 8k.

how do you think if we use device-tree "compatible" to differentiate
these two kinds of BT modules?
for non-DT platform, platform_device_id?

>
> - Lars

-barry


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