gecko-dev/dom/bluetooth/BluetoothProfileController.h

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/* -*- 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/. */
#ifndef mozilla_dom_bluetooth_bluetoothprofilecontroller_h__
#define mozilla_dom_bluetooth_bluetoothprofilecontroller_h__
#include "BluetoothUuid.h"
#include "nsAutoPtr.h"
#include "mozilla/RefPtr.h"
BEGIN_BLUETOOTH_NAMESPACE
/*
* Class of Device(CoD): 32-bit unsigned integer
*
* 31 24 23 13 12 8 7 2 1 0
* | | Major | Major | Minor | |
* | | service | device | device | |
* | | class | class | class | |
* | |<- 11 ->|<- 5 ->|<- 6 ->| |
*
* https://www.bluetooth.org/en-us/specification/assigned-numbers/baseband
*/
// Bit 23 ~ Bit 13: Major service class
#define GET_MAJOR_SERVICE_CLASS(cod) ((cod & 0xffe000) >> 13)
// Bit 12 ~ Bit 8: Major device class
#define GET_MAJOR_DEVICE_CLASS(cod) ((cod & 0x1f00) >> 8)
// Bit 7 ~ Bit 2: Minor device class
#define GET_MINOR_DEVICE_CLASS(cod) ((cod & 0xfc) >> 2)
// Audio: Major service class = 0x100 (Bit 21 is set)
#define HAS_AUDIO(cod) (cod & 0x200000)
// Rendering: Major service class = 0x20 (Bit 18 is set)
#define HAS_RENDERING(cod) (cod & 0x40000)
// Peripheral: Major device class = 0x5
#define IS_PERIPHERAL(cod) (GET_MAJOR_DEVICE_CLASS(cod) == 0x5)
// Remote Control: sub-field of minor device class, Bit 5 ~ Bit 2 = 0x3
#define IS_REMOTE_CONTROL(cod) ((GET_MINOR_DEVICE_CLASS(cod) & 0xf) == 0x3)
// Keyboard: sub-field of minor device class (Bit 6)
#define IS_KEYBOARD(cod) ((GET_MINOR_DEVICE_CLASS(cod) & 0x10) >> 4)
// Pointing device: sub-field of minor device class (Bit 7)
#define IS_POINTING_DEVICE(cod) ((GET_MINOR_DEVICE_CLASS(cod) & 0x20) >> 5)
class BluetoothProfileManagerBase;
class BluetoothReplyRunnable;
typedef void (*BluetoothProfileControllerCallback)();
class BluetoothProfileController : public RefCounted<BluetoothProfileController>
{
public:
/**
* @param aConnect: If it's a connect request, the value should be set
* to true. For disconnect request, set it to false.
* @param aDeviceAddress: The address of remote device.
* @param aRunnable: Once the controller has done, the runnable will be
* replied. When all connection/disconnection attemps
* have failed, an error is fired. In other words,
* reply a success if any attemp successes.
* @param aCallback: The callback will be invoked after the runnable is
* replied.
* @param aServiceUuid: Connect/Disconnect to the specified profile. Please
* see enum BluetoothServiceClass for valid value.
* @param aCod: If aServiceUuid is not assigned, i.e. the value is
* 0, the controller connect multiple profiles based on
* aCod or disconnect all connected profiles.
*/
BluetoothProfileController(bool aConnect,
const nsAString& aDeviceAddress,
BluetoothReplyRunnable* aRunnable,
BluetoothProfileControllerCallback aCallback,
uint16_t aServiceUuid,
uint32_t aCod = 0);
~BluetoothProfileController();
/**
* The controller starts connecting/disconnecting profiles one by one
* according to the order in array mProfiles.
*/
void Start();
/**
* It is invoked after a profile has tried to establish the connection.
* An error string is returned when it fails.
*/
void OnConnect(const nsAString& aErrorStr);
/**
* It is invoked after a profile has tried to drop the connection.
* An error string is returned when it fails.
*/
void OnDisconnect(const nsAString& aErrorStr);
private:
// Setup data member mProfiles
void SetupProfiles(bool aAssignServiceClass);
// Add profiles into array with/without checking connection status
void AddProfile(BluetoothProfileManagerBase* aProfile,
bool aCheckConnected = false);
// Add specified profile into array
void AddProfileWithServiceClass(BluetoothServiceClass aClass);
// Connect/Disconnect next profile in the array
void Next();
const bool mConnect;
nsString mDeviceAddress;
nsRefPtr<BluetoothReplyRunnable> mRunnable;
BluetoothProfileControllerCallback mCallback;
bool mSuccess;
int8_t mProfilesIndex;
nsTArray<BluetoothProfileManagerBase*> mProfiles;
// Either CoD or BluetoothServiceClass is assigned.
union {
uint32_t cod;
BluetoothServiceClass service;
} mTarget;
};
END_BLUETOOTH_NAMESPACE
#endif