Hi Frédéric,
On Thu, Dec 12, 2024 at 11:38 AM Frédéric Danis
<frederic.danis@xxxxxxxxxxxxx> wrote:
>
> Add 16 bits, 2s complement, transparent air coding format for mSBC.
> Corresponding commit implements functionality on kernel side.
>
> The voice setting is used by sco_connect() or sco_conn_defer_accept()
> after being set by sco_sock_setsockopt().
>
> The PCM part of the voice setting is used for offload mode through PCM
> chipset port.
> This commits add support for mSBC 16 bits offloading, i.e. audio data
> not transported over HCI.
>
> The BCM4349B1 supports 16 bits transparent data on its I2S port.
> If BT_VOICE_TRANSPARENT is used when accepting a SCO connection, this
> gives only garbage audio while using BT_VOICE_TRANSPARENT_16BIT gives
> correct audio.
> This has been tested with connection to iPhone 14 and Samsung S24.
> ---
> lib/bluetooth.h | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/lib/bluetooth.h b/lib/bluetooth.h
> index 073ed875d..32e58678b 100644
> --- a/lib/bluetooth.h
> +++ b/lib/bluetooth.h
> @@ -111,6 +111,7 @@ struct bt_voice {
>
> #define BT_VOICE_TRANSPARENT 0x0003
> #define BT_VOICE_CVSD_16BIT 0x0060
> +#define BT_VOICE_TRANSPARENT_16BIT 0x0063
>
> #define BT_PHY 14
Are you planning on adding support for sco-tester as well?
> --
> 2.34.1
>
>
--
Luiz Augusto von Dentz
