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Commit bdf6b002 authored by Christine Hallstrom's avatar Christine Hallstrom
Browse files

Add API for DCK connection interval 

Add BluetoothGatt#CONNECTION_PRIORITY_DCK value to be used to set
connection priority to a value best supporting the Digital Car Key
implementation.

Note that the exact values defined will likely change, as it is
recommended to provide a range to the controller rather than a single
value for min and max.

Bug: 267229740
Test: Builds (functional changes to be added in follow-up CL, this is
adding the API and config value only)

Change-Id: Iff02e69caad079a627ff04ae6d593f58c897e16d
parent bcf51872

android/app/res/values/config.xml

+2 −0
Original line number Diff line number Diff line
@@ -32,6 +32,8 @@ 
    <integer name="gatt_balanced_priority_max_interval">40</integer>

    <integer name="gatt_low_power_min_interval">80</integer>

    <integer name="gatt_low_power_max_interval">100</integer>

    <integer name="gatt_dck_priority_min_interval">24</integer>

    <integer name="gatt_dck_priority_max_interval">24</integer>



    <!-- min/max connection intervals/latencies for companion devices -->

    <!-- Primary companion -->

framework/api/current.txt

+1 −0
Original line number Diff line number Diff line
@@ -609,6 +609,7 @@ package android.bluetooth { 
    method @Deprecated @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) public boolean writeDescriptor(android.bluetooth.BluetoothGattDescriptor);

    method @RequiresPermission(android.Manifest.permission.BLUETOOTH_CONNECT) public int writeDescriptor(@NonNull android.bluetooth.BluetoothGattDescriptor, @NonNull byte[]);

    field public static final int CONNECTION_PRIORITY_BALANCED = 0; // 0x0

    field public static final int CONNECTION_PRIORITY_DCK = 3; // 0x3

    field public static final int CONNECTION_PRIORITY_HIGH = 1; // 0x1

    field public static final int CONNECTION_PRIORITY_LOW_POWER = 2; // 0x2

    field public static final int GATT_CONNECTION_CONGESTED = 143; // 0x8f

framework/java/android/bluetooth/BluetoothGatt.java

+8 −0
Original line number Diff line number Diff line
@@ -149,6 +149,14 @@ public final class BluetoothGatt implements BluetoothProfile { 
    /** Connection parameter update - Request low power, reduced data rate connection parameters. */

    public static final int CONNECTION_PRIORITY_LOW_POWER = 2;



    /**

     * Connection parameter update - Request the priority preferred for Digital Car Key for a

     * lower latency connection. This connection parameter will consume more power than

     * {@link BluetoothGatt#CONNECTION_PRIORITY_BALANCED}, so it is recommended that apps do not use

     * this unless it specifically fits their use case.

     */

    public static final int CONNECTION_PRIORITY_DCK = 3;



    /**

     * Connection subrate request - Balanced.

     *