[pulseaudio-discuss] [PATCH 1/3 v2] backend-native: add support for the HSP Headset role
tanuk at iki.fi
Tue Mar 7 13:25:09 UTC 2017
On Tue, 2017-03-07 at 13:44 +0100, Georg Chini wrote:
> From: Wim Taymans <wim.taymans at gmail.com>
> This is a rebase of Wim Taymans patch to support the HSP headset role that has
> somehow been forgotten. Original patch can be found at
> Rebase and minor changes by Georg Chini.
> In addition to the HSP Audio Gateway, also add support for the headset
> role in the native bluetooth backend. In this role, pulseaudio is used as
> In the headset role, we create source and sink to receive and send the samples
> from the gateway, respectively. Module-bluetooth-policy will automatically load
> loopback modules to link these to a sink and source for playback. Because this
> makes the source the speaker and the sink the microphone, we need to reverse the
> roles of source and sink compared to the gateway role.
> In the gateway role, adjusting the sink volume generates a +VGS command to set
> the volume on the headset. Likewise, receiving AT+VGS updates the sink volume.
> In the headset role, receiving a +VGS should set the source volume and any
> source volume changes should be reported back to the gateway with AT+VGS.
> src/modules/bluetooth/backend-native.c | 273 ++++++++++++++++++++++-----
> src/modules/bluetooth/module-bluez5-device.c | 34 +++-
> 2 files changed, 255 insertions(+), 52 deletions(-)
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