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When I attempt to toggle BLE on the emulator, I see a lot of proper communication on the bridge, but there are a couple packets that always are breaking, which prevent me from turning BLE on, on the emulator. I tried filtering the breaking packets, but
It seems that the Android Bluetooth stack isn't happy when the controller it is talking to does not support the HCI_WRITE_LE_HOST_SUPPORT_COMMAND command.
One way around this is to tell the bumble-hci-bridge app to short-circuit this command (always answer SUCCESS).
That command has the following opcode: hci_command_op_code(0x03, 0x006D).
So you can include 0x03:0x006D on the bumble-hci-bridge command-line (the last parameter is a command-short-circuit-list, which is a command-separated list of commands to short-circuit, expressed as hex-value tuple.
Nevermind this issue. After handling specific packets, and filtering others, it now can enable BLE
I have a nRF Dongle I flashed with the zypher firmware that was mentioned in the documentation.
I am using Android emulator version 34.1.19.0, with a Android 14 Pixel 8 simulator.
Running:
bumble-hci-bridge android-netsim:_:8877,mode=controller usb:0
./emulator -packet-streamer-endpoint localhost:8877 -avd Pickle -no-snapshot-load
When I attempt to toggle BLE on the emulator, I see a lot of proper communication on the bridge, but there are a couple packets that always are breaking, which prevent me from turning BLE on, on the emulator. I tried filtering the breaking packets, but
Bridge:
INFO:bumble.bridge:[HOST->CONTROLLER] HCI_WRITE_LE_HOST_SUPPORT_COMMAND:
le_supported_host: 1
simultaneous_le_host: 0
INFO:bumble.bridge:[CONTROLLER->HOST] HCI_COMMAND_STATUS_EVENT:
status: HCI_UNKNOWN_HCI_COMMAND_ERROR
num_hci_command_packets: 1
command_opcode: HCI_WRITE_LE_HOST_SUPPORT_COMMAND
INFO:bumble.bridge:[HOST->CONTROLLER] HCI_READ_LOCAL_NAME_COMMAND
INFO:bumble.bridge:[CONTROLLER->HOST] HCI_COMMAND_STATUS_EVENT:
status: HCI_UNKNOWN_HCI_COMMAND_ERROR
num_hci_command_packets: 1
command_opcode: HCI_READ_LOCAL_NAME_COMMAND
Logcat:
03-22 09:28:15.545 2771 2901 E bluetooth: packages/modules/Bluetooth/system/gd/hci/hci_layer.cc:162 on_command_status: Received UNEXPECTED command status:UNKNOWN_HCI_COMMAND opcode:0xc6d (WRITE_LE_HOST_SUPPORT)
03-22 09:28:15.546 2771 2901 F bluetooth: assertion 'view.IsValid()' failed
03-22 09:28:15.546 2771 2901 F libc : Fatal signal 6 (SIGABRT), code -1 (SI_QUEUE) in tid 2901 (bt_stack_manage), pid 2771 (droid.bluetooth)
03-22 09:28:16.298 2911 2911 F DEBUG : Cmdline: com.google.android.bluetooth
03-22 09:28:16.299 2911 2911 F DEBUG : pid: 2771, tid: 2901, name: bt_stack_manage >>> com.google.android.bluetooth <<<
03-22 09:28:16.302 2911 2911 F DEBUG : pc 0000000000aba8c1 /apex/com.android.btservices/lib64/libbluetooth_jni.so (void bluetooth::hci::Controller::impl::check_statusbluetooth::hci::WriteLeHostSupportCompleteView(bluetooth::hci::CommandCompleteView)+561) (BuildId: 07f121772f0589874ca9fdd71c8d3406)
03-22 09:51:09.668 1279 1313 F libc : Fatal signal 6 (SIGABRT), code -1 (SI_QUEUE) in tid 1313 (bt_stack_manage), pid 1279 (droid.bluetooth)
03-22 09:51:22.532 558 581 D ActivityManagerTiming: OnBootPhase_1000_com.android.server.bluetooth.BluetoothService
03-22 09:51:23.400 1326 1326 F DEBUG : Cmdline: com.google.android.bluetooth
03-22 09:51:23.400 1326 1326 F DEBUG : pid: 1279, tid: 1313, name: bt_stack_manage >>> com.google.android.bluetooth <<<
03-22 09:51:23.401 1326 1326 F DEBUG : pc 0000000000ab5067 /apex/com.android.btservices/lib64/libbluetooth_jni.so (bluetooth::hci::Controller::impl::read_local_name_complete_handler(bluetooth::hci::CommandCompleteView)+951) (BuildId: 07f121772f0589874ca9fdd71c8d3406)
If there is anything else that would be helpful, please let me know.
Thank you!
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