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bluetooth: add UPower backend

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UPower provides information about the power supply and battery
level of the host. Add a backend to retrieve the host battery level.

Part-of: <https://gitlab.freedesktop.org/pulseaudio/pulseaudio/-/merge_requests/631>
This commit is contained in:
Dylan Van Assche 2022-04-05 20:26:09 +02:00 • committed by PulseAudio Marge Bot
parent cca0d69375
commit 3621731050
3 changed files with 342 additions and 1 deletions
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39
src/modules/bluetooth/upower.h Normal file
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#pragma once
/***
This file is part of PulseAudio.
Copyright 2022 Dylan Van Assche <me@dylanvanassche.be>
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
***/
#include "bluez5-util.h"
#define UPOWER_SERVICE "org.freedesktop.UPower"
#define UPOWER_DEVICE_INTERFACE ".Device"
#define UPOWER_DISPLAY_DEVICE_OBJECT "/org/freedesktop/UPower/devices/DisplayDevice"
struct pa_upower_backend {
pa_core *core;
pa_dbus_connection *connection;
pa_bluetooth_discovery *discovery;
unsigned int battery_level;
PA_LLIST_HEAD(pa_dbus_pending, pending);
};
pa_upower_backend *pa_upower_backend_new(pa_core *c, pa_bluetooth_discovery *d);
void pa_upower_backend_free(pa_upower_backend *backend);
unsigned int pa_upower_get_battery_level(pa_upower_backend *backend);