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BLE 設備在完美運行數周后停止與 Android 連接

[英]BLE-device stops connecting with Android after working flawlessly for weeks

 原文  2018-08-24 08:52:05  8   1    android/ bluetooth/ connection/ bluetooth-lowenergy/ reconnect

問題描述

我有一台配備 Blue Gecko BLE 的設備，在各種 Android 手機和平板電腦上一切似乎都運行良好：連接、數據傳輸和斷開連接后重新連接。 注意：我們不配對我們剛剛連接的設備，我們不使用自動連接。

現在的問題是：有時使用某些設備 - 電話設置連接在工作數周后停止運行。 我不知道它何時或為什么會發生，但在那之后，不可能使用之前完美運行的同一部手機重新連接設備。 該設備在其他手機上仍然可以正常工作。 並且手機可以與其他設備配合使用。 我們嘗試了各種技巧：重啟手機、卸載並重新安裝應用程序、重置設備。 這些都不起作用。 我們能夠重新連接的唯一方法是從手機設置中刪除藍牙數據（重置網絡和藍牙或只是從手機的應用程序設置中刪除藍牙數據）。 這是什么原因，我們如何解決這個問題？ 有任何想法嗎？

線索：從手機上看btsnoop_hci.log，似乎當連接開始失敗時，對“Sent LE Create Connection”的響應是“Command disallowed”。

查看 logcat，我看到“Got status 133 and state 0”導致我們的應用程序中的藍牙重置。

連接狀態檢查每 5 秒完成一次，然后重新連接......如果需要的話。

出現問題時，無法使用同一部手機與其他應用程序建立連接。 這就像設備被列入黑名單，可以通過刪除藍牙數據清除。

我希望有人能夠幫助解決這個問題。 提前致謝！

編輯：我被要求提供一些 HCI LOG，所以在這里。 幀 28305 和 28309 具有創建連接命令，而幀 28306 和 28310 具有狀態響應：“Command Disallowed (0x0c)”

No.     Time           Arrival Time Destination           Info                                                            Protocol BD_ADDR    Destination Source     Unexpected event Initiator Filter Policy
  28304 93430.042972   Aug 12, 2018 13:39:19.747836000 FLE Daylight Time host                  Rcvd Command Complete (LE Add Device To White List)             HCI_EVT                                                     

Frame 28304: 7 bytes on wire (56 bits), 7 bytes captured (56 bits)
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 12, 2018 13:39:19.747836000 FLE Daylight Time
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1534070359.747836000 seconds
    [Time delta from previous captured frame: 0.000870000 seconds]
    [Time delta from previous displayed frame: 0.000000000 seconds]
    [Time since reference or first frame: 93430.042972000 seconds]
    Frame Number: 28304
    Frame Length: 7 bytes (56 bits)
    Capture Length: 7 bytes (56 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
Bluetooth
    [Source: controller]
    [Destination: host]
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Command Complete
    Event Code: Command Complete (0x0e)
    Parameter Total Length: 4
    Number of Allowed Command Packets: 1
    Command Opcode: LE Add Device To White List (0x2011)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0001 0001 = Opcode Command Field: LE Add Device To White List (0x011)
    Status: Success (0x00)
    [Command in frame: 28303]
    [Command-Response Delta: 0.87ms]

No.     Time           Arrival Time Destination           Info                                                            Protocol BD_ADDR    Destination Source     Unexpected event Initiator Filter Policy
  28305 93430.043242   Aug 12, 2018 13:39:19.748106000 FLE Daylight Time controller            Sent LE Create Connection                                       HCI_CMD                                                     Use White List. Ignore Peer Address

Frame 28305: 29 bytes on wire (232 bits), 29 bytes captured (232 bits)
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 12, 2018 13:39:19.748106000 FLE Daylight Time
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1534070359.748106000 seconds
    [Time delta from previous captured frame: 0.000270000 seconds]
    [Time delta from previous displayed frame: 0.000270000 seconds]
    [Time since reference or first frame: 93430.043242000 seconds]
    Frame Number: 28305
    Frame Length: 29 bytes (232 bits)
    Capture Length: 29 bytes (232 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_cmd]
    [Coloring Rule Name: ___conversation_color_filter___06]
    [Coloring Rule String: bthci_cmd.opcode == 0x200d]
Bluetooth
    [Source: host]
    [Destination: controller]
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: HCI Command (0x01)
Bluetooth HCI Command - LE Create Connection
    Command Opcode: LE Create Connection (0x200d)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1101 = Opcode Command Field: LE Create Connection (0x00d)
    Parameter Total Length: 25
    Scan Interval: 2048 (1280 msec)
    Scan Window: 128 (80 msec)
    Initiator Filter Policy: Use White List. Ignore Peer Address (0x01)
    Peer Address Type: Public Device Address (0x00)
    BD_ADDR: 00:00:00_00:00:00 (00:00:00:00:00:00)
    Own Address Type: Random Device Address (0x01)
    Connection Interval Min: 24 (30 msec)
    Connection Interval Max: 40 (50 msec)
    Connection Latency: 0 (number events)
    Supervision Timeout: 2000 (20 sec)
    Min CE Length: 0 (0 msec)
    Max CE Length: 0 (0 msec)
    [Response in frame: 28306]
    [Command-Response Delta: 0.607ms]

No.     Time           Arrival Time Destination           Info                                                            Protocol BD_ADDR    Destination Source     Unexpected event Initiator Filter Policy
  28306 93430.043849   Aug 12, 2018 13:39:19.748713000 FLE Daylight Time host                  Rcvd Command Status (LE Create Connection)                      HCI_EVT                                                     

Frame 28306: 7 bytes on wire (56 bits), 7 bytes captured (56 bits)
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 12, 2018 13:39:19.748713000 FLE Daylight Time
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1534070359.748713000 seconds
    [Time delta from previous captured frame: 0.000607000 seconds]
    [Time delta from previous displayed frame: 0.000607000 seconds]
    [Time since reference or first frame: 93430.043849000 seconds]
    Frame Number: 28306
    Frame Length: 7 bytes (56 bits)
    Capture Length: 7 bytes (56 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
    [Coloring Rule Name: ___conversation_color_filter___01]
    [Coloring Rule String: bthci_evt.status == 0x0c]
Bluetooth
    [Source: controller]
    [Destination: host]
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Command Status
    Event Code: Command Status (0x0f)
    Parameter Total Length: 4
    Status: Command Disallowed (0x0c)
    Number of Allowed Command Packets: 1
    Command Opcode: LE Create Connection (0x200d)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1101 = Opcode Command Field: LE Create Connection (0x00d)
    [Command in frame: 28305]
    [Command-Response Delta: 0.607ms]

No.     Time           Arrival Time Destination           Info                                                            Protocol BD_ADDR    Destination Source     Unexpected event Initiator Filter Policy
  28307 93430.044054   Aug 12, 2018 13:39:19.748918000 FLE Daylight Time controller            Sent LE Create Connection Cancel                                HCI_CMD                                                     

Frame 28307: 4 bytes on wire (32 bits), 4 bytes captured (32 bits)
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 12, 2018 13:39:19.748918000 FLE Daylight Time
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1534070359.748918000 seconds
    [Time delta from previous captured frame: 0.000205000 seconds]
    [Time delta from previous displayed frame: 0.000205000 seconds]
    [Time since reference or first frame: 93430.044054000 seconds]
    Frame Number: 28307
    Frame Length: 4 bytes (32 bits)
    Capture Length: 4 bytes (32 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_cmd]
Bluetooth
    [Source: host]
    [Destination: controller]
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: HCI Command (0x01)
Bluetooth HCI Command - LE Create Connection Cancel
    Command Opcode: LE Create Connection Cancel (0x200e)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1110 = Opcode Command Field: LE Create Connection Cancel (0x00e)
    Parameter Total Length: 0
    [Response in frame: 28308]
    [Command-Response Delta: 2.721ms]

No.     Time           Arrival Time Destination           Info                                                            Protocol BD_ADDR    Destination Source     Unexpected event Initiator Filter Policy
  28308 93430.046775   Aug 12, 2018 13:39:19.751639000 FLE Daylight Time host                  Rcvd Command Complete (LE Create Connection Cancel)             HCI_EVT                                                     

Frame 28308: 7 bytes on wire (56 bits), 7 bytes captured (56 bits)
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 12, 2018 13:39:19.751639000 FLE Daylight Time
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1534070359.751639000 seconds
    [Time delta from previous captured frame: 0.002721000 seconds]
    [Time delta from previous displayed frame: 0.002721000 seconds]
    [Time since reference or first frame: 93430.046775000 seconds]
    Frame Number: 28308
    Frame Length: 7 bytes (56 bits)
    Capture Length: 7 bytes (56 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
    [Coloring Rule Name: ___conversation_color_filter___01]
    [Coloring Rule String: bthci_evt.status == 0x0c]
Bluetooth
    [Source: controller]
    [Destination: host]
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Command Complete
    Event Code: Command Complete (0x0e)
    Parameter Total Length: 4
    Number of Allowed Command Packets: 1
    Command Opcode: LE Create Connection Cancel (0x200e)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1110 = Opcode Command Field: LE Create Connection Cancel (0x00e)
    Status: Command Disallowed (0x0c)
    [Command in frame: 28307]
    [Command-Response Delta: 2.721ms]

No.     Time           Arrival Time Destination           Info                                                            Protocol BD_ADDR    Destination Source     Unexpected event Initiator Filter Policy
  28309 93434.163337   Aug 12, 2018 13:39:23.868201000 FLE Daylight Time controller            Sent LE Create Connection                                       HCI_CMD                                                     Use Peer Address

Frame 28309: 29 bytes on wire (232 bits), 29 bytes captured (232 bits)
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 12, 2018 13:39:23.868201000 FLE Daylight Time
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1534070363.868201000 seconds
    [Time delta from previous captured frame: 4.116562000 seconds]
    [Time delta from previous displayed frame: 4.116562000 seconds]
    [Time since reference or first frame: 93434.163337000 seconds]
    Frame Number: 28309
    Frame Length: 29 bytes (232 bits)
    Capture Length: 29 bytes (232 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Sent (0)
    [Protocols in frame: bluetooth:hci_h4:bthci_cmd]
    [Coloring Rule Name: ___conversation_color_filter___06]
    [Coloring Rule String: bthci_cmd.opcode == 0x200d]
Bluetooth
    [Source: host]
    [Destination: controller]
Bluetooth HCI H4
    [Direction: Sent (0x00)]
    HCI Packet Type: HCI Command (0x01)
Bluetooth HCI Command - LE Create Connection
    Command Opcode: LE Create Connection (0x200d)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1101 = Opcode Command Field: LE Create Connection (0x00d)
    Parameter Total Length: 25
    Scan Interval: 96 (60 msec)
    Scan Window: 48 (30 msec)
    Initiator Filter Policy: Use Peer Address (0x00)
    Peer Address Type: Public Device Address (0x00)
    BD_ADDR: SiliconL_23:5e:25 (90:fd:9f:23:5e:25)
    Own Address Type: Random Device Address (0x01)
    Connection Interval Min: 24 (30 msec)
    Connection Interval Max: 40 (50 msec)
    Connection Latency: 0 (number events)
    Supervision Timeout: 2000 (20 sec)
    Min CE Length: 0 (0 msec)
    Max CE Length: 0 (0 msec)
    [Response in frame: 28310]
    [Command-Response Delta: 8.734ms]

No.     Time           Arrival Time Destination           Info                                                            Protocol BD_ADDR    Destination Source     Unexpected event Initiator Filter Policy
  28310 93434.172071   Aug 12, 2018 13:39:23.876935000 FLE Daylight Time host                  Rcvd Command Status (LE Create Connection)                      HCI_EVT                                                     

Frame 28310: 7 bytes on wire (56 bits), 7 bytes captured (56 bits)
    Encapsulation type: Bluetooth H4 with linux header (99)
    Arrival Time: Aug 12, 2018 13:39:23.876935000 FLE Daylight Time
    [Time shift for this packet: 0.000000000 seconds]
    Epoch Time: 1534070363.876935000 seconds
    [Time delta from previous captured frame: 0.008734000 seconds]
    [Time delta from previous displayed frame: 0.008734000 seconds]
    [Time since reference or first frame: 93434.172071000 seconds]
    Frame Number: 28310
    Frame Length: 7 bytes (56 bits)
    Capture Length: 7 bytes (56 bits)
    [Frame is marked: False]
    [Frame is ignored: False]
    Point-to-Point Direction: Received (1)
    [Protocols in frame: bluetooth:hci_h4:bthci_evt]
    [Coloring Rule Name: ___conversation_color_filter___01]
    [Coloring Rule String: bthci_evt.status == 0x0c]
Bluetooth
    [Source: controller]
    [Destination: host]
Bluetooth HCI H4
    [Direction: Rcvd (0x01)]
    HCI Packet Type: HCI Event (0x04)
Bluetooth HCI Event - Command Status
    Event Code: Command Status (0x0f)
    Parameter Total Length: 4
    Status: Command Disallowed (0x0c)
    Number of Allowed Command Packets: 1
    Command Opcode: LE Create Connection (0x200d)
        0010 00.. .... .... = Opcode Group Field: LE Controller Commands (0x08)
        .... ..00 0000 1101 = Opcode Command Field: LE Create Connection (0x00d)
    [Command in frame: 28309]
    [Command-Response Delta: 8.734ms]

編輯2：

這是從 Wireshark 導出的 hci 日志文件的鏈接：

https://www.dropbox.com/s/6t8hqde4a9mxt0u/btsnoop_hci_1_cut.log?dl=0

這是指向與純文本相同的數據的鏈接：

https://www.dropbox.com/s/o4lzoyxkg7gk8de/btsnoop_hci_1_cut.TXT?dl=0

應用過濾器：frame.number > 17025 && frame.number < 28311。Frame 17032：最后一次成功連接。 幀 28222：最后一次連接嘗試沒有命令禁止狀態

編輯 3：

這是連接設備的代碼。 如前所述，我沒有使用自動連接。 我確實希望盡可能可靠和快速地重新連接。 如果連接丟失，我會定期（每 5 秒）調用此 connectBLEDevice。

private void connectBLEDevice() {
    Log.d(TAG, "Start connect...");

    if (btIsConnected) {
        Log.e(TAG, "connectBLEDevice: do nothing because btIsConnected");

        return;
    }
    Log.d(TAG, "connectBLEDevice: currentDevice = " + currentDevice);
    Log.d(TAG, "connectBLEDevice: BT CONNECTION STATE = " + bluetoothManager.getConnectionState(currentDevice, BluetoothProfile.GATT) + " (0 = disconnected, 1 = connecting, 2 = connected, 3 = disconnecting)");
    if (currentDevice != null) {
        if (bluetoothManager.getConnectionState(currentDevice, BluetoothProfile.GATT) == BluetoothProfile.STATE_CONNECTED
                || bluetoothManager.getConnectionState(currentDevice, BluetoothProfile.GATT) == BluetoothProfile.STATE_CONNECTING
                || bluetoothManager.getConnectionState(currentDevice, BluetoothProfile.GATT) == BluetoothProfile.STATE_DISCONNECTING) {
            Log.d("debug", "connectBLEDevice: connectBLEDevice ALREADY CONNECTED --> do nothing");

            if(deviceConnectionRetryCount%30 != 0){
                return;
            }else { // RESET BT IF not communicating but BT claims to be connected for too long
                Log.d("debug", "connectBLEDevice: STILL NOT COMMUNICATING for too long (2-3min) --> try to reconnect");
            }
        }
    }

    Log.e(TAG, "connectBLEDevice: Starting service discovery");
    if (btGatt == null) {

        // I was told  there should be delay before connecting after disconnection (this could be accessed if user start and stop the service very fast)
        new Handler(Looper.getMainLooper()).postDelayed(new Runnable() {
            @Override
            public void run() {
                Log.d("debug", "connectBLEDevice: connectGatt in BLESERVICE");
                btGatt = currentDevice.connectGatt(BleService.this, false, gattCb);
            }
        }, 500);


    } else {
        Log.d(TAG, "connectBLEDevice: btGatt != null --> Disconnect BLE");
        btGatt.disconnect();

        // I was told  there should be delay before connecting after disconnection 
        new Handler(Looper.getMainLooper()).postDelayed(new Runnable() {
            @Override
            public void run() {
                try {
                    boolean success = btGatt.connect();

                    if (!success || (deviceConnectionRetryCount > 0 && deviceConnectionRetryCount%10==0)) {
                        Log.d("debug", "connectBLEDevice: connect in BLESERVICE Failed OR retried 10 times (~ 1min) --> reset BT");
                        resetBluetooth();
                    }else{
                        Log.d("debug", "connectBLEDevice: connect in BLESERVICE Success");
                    }
                }
                catch (Exception e){
                    Log.e(TAG, "connectBLEDevice: Unable to connect BLE device (null pointer) --> reset BT", e);
                    resetBluetooth();
                }
            }
        }, 500);

    }

}

這是重置藍牙的代碼

private void resetBluetooth() {
    Log.e(TAG, "*** Reseting Bluetooth! ***");
    if (mGattManager != null) {
        mGattManager.cancelCurrentOperationBundle();
        disconnect(currentDevice);
        mGattManager = null;
    }

    if (btGatt != null) {
        btGatt.disconnect();
        refreshDeviceCache(btGatt);
        try {
            btGatt.close();
        }
        catch (Exception e){
            Log.e(TAG, "An exception occurred while closing btGatt");
        }
    }

    initBluetooth();
    btGatt = null;
}

1 個解決方案

解決方案1
 0  2021-11-30 08:10:45

不要在android P之后調用refreshDeviceCache(btGatt)。

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