gecko-dev/dom/bluetooth2/BluetoothInterface.cpp
Thomas Zimmermann f521db364a Bug 1126720: Implement Bluetooth backend selection; use Bluedroid by default (under bluetooth2/), r=btian
This patch adds proper selection of the Bluetooth backend. The backend
is configurable via environment property 'ro.moz.bluetooth.backend'. The
default value is still Bluedroid.

On systems that are not Android 4.2 or later, the code does not return
a backend. These systems should use BlueZ instead.

This patch is based on bug 1065336, patch [01] and bug 1124565,
patch [01]. It also contains an extra fix in 'moz.build' to set
the pre-processor constant 'MOZ_B2G_BT_DAEMON'.
2015-02-12 10:12:07 +01:00

195 lines
3.9 KiB
C++

/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "BluetoothInterface.h"
#if ANDROID_VERSION >= 17
#include <cutils/properties.h>
#endif
#ifdef MOZ_B2G_BT_BLUEDROID
#include "BluetoothHALInterface.h"
#endif
#ifdef MOZ_B2G_BT_DAEMON
#include "BluetoothDaemonInterface.h"
#endif
BEGIN_BLUETOOTH_NAMESPACE
//
// Socket Interface
//
BluetoothSocketInterface::~BluetoothSocketInterface()
{ }
//
// Handsfree Interface
//
// Notification handling
//
BluetoothHandsfreeNotificationHandler::
~BluetoothHandsfreeNotificationHandler()
{ }
// Interface
//
BluetoothHandsfreeInterface::BluetoothHandsfreeInterface()
{ }
BluetoothHandsfreeInterface::~BluetoothHandsfreeInterface()
{ }
//
// Bluetooth Advanced Audio Interface
//
// Notification handling
//
BluetoothA2dpNotificationHandler::~BluetoothA2dpNotificationHandler()
{ }
// Interface
//
BluetoothA2dpInterface::BluetoothA2dpInterface()
{ }
BluetoothA2dpInterface::~BluetoothA2dpInterface()
{ }
//
// Bluetooth AVRCP Interface
//
// Notification handling
//
BluetoothAvrcpNotificationHandler::~BluetoothAvrcpNotificationHandler()
{ }
// Interface
//
BluetoothAvrcpInterface::BluetoothAvrcpInterface()
{ }
BluetoothAvrcpInterface::~BluetoothAvrcpInterface()
{ }
//
// Bluetooth GATT Interface
//
// Notification handling
//
BluetoothGattClientNotificationHandler::~BluetoothGattClientNotificationHandler()
{ }
BluetoothGattServerNotificationHandler::~BluetoothGattServerNotificationHandler()
{ }
BluetoothGattNotificationHandler::~BluetoothGattNotificationHandler()
{ }
// Interface
//
BluetoothGattClientInterface::BluetoothGattClientInterface()
{ }
BluetoothGattClientInterface::~BluetoothGattClientInterface()
{ }
BluetoothGattInterface::BluetoothGattInterface()
{ }
BluetoothGattInterface::~BluetoothGattInterface()
{ }
//
// Bluetooth Core Interface
//
// Notification handling
//
BluetoothNotificationHandler::~BluetoothNotificationHandler()
{ }
// Interface
//
BluetoothInterface*
BluetoothInterface::GetInstance()
{
#if ANDROID_VERSION >= 17
/* We pick a default backend from the available ones. The branches
* are ordered by preference.
*/
#ifdef MOZ_B2G_BT_BLUEDROID
static const char sDefaultBackend[] = "bluedroid";
#else
#ifdef MOZ_B2G_BT_DAEMON
static const char sDefaultBackend[] = "bluetoothd";
#else
static const char* const sDefaultBackend = nullptr;
#endif
#endif
/* Here's where we decide which implementation to use. Currently
* there is only Bluedroid and the Bluetooth daemon, but others are
* possible. Having multiple interfaces built-in and selecting the
* correct one at runtime is also an option.
*/
char value[PROPERTY_VALUE_MAX];
int len;
len = property_get("ro.moz.bluetooth.backend", value, sDefaultBackend);
if (len < 0) {
BT_WARNING("No Bluetooth backend available.");
return nullptr;
}
const nsDependentCString backend(value, len);
#ifdef MOZ_B2G_BT_BLUEDROID
if (backend.LowerCaseEqualsLiteral("bluedroid")) {
return BluetoothHALInterface::GetInstance();
} else
#endif
#ifdef MOZ_B2G_BT_DAEMON
if (backend.LowerCaseEqualsLiteral("bluetoothd")) {
return BluetoothDaemonInterface::GetInstance();
} else
#endif
{
BT_WARNING("Bluetooth backend '%s' is unknown or not available.",
backend.get());
}
return nullptr;
#else
/* Anything that's not Android 4.2 or later uses BlueZ instead. The
* code should actually never reach this point.
*/
BT_WARNING("No Bluetooth backend available for your system.");
return nullptr;
#endif
}
BluetoothInterface::BluetoothInterface()
{ }
BluetoothInterface::~BluetoothInterface()
{ }
END_BLUETOOTH_NAMESPACE