X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/67bc62510942eb83dd9c4ab323ed09d83764bf4b..35b7946950e178c5ba51b87ef16e8a927239fda4:/Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMMControl.c diff --git a/Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMMControl.c b/Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMMControl.c index 2321c25c4..e5bce54d2 100644 --- a/Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMMControl.c +++ b/Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMMControl.c @@ -42,29 +42,30 @@ void RFCOMM_ProcessControlCommand(const uint8_t* Command, Bluetooth_Channel_t* c { const RFCOMM_Command_t* CommandHeader = (const RFCOMM_Command_t*)Command; const uint8_t* CommandData = (const uint8_t*)Command + sizeof(RFCOMM_Command_t); + uint8_t CommandDataLen = RFCOMM_GetVariableFieldValue(&CommandData); switch (CommandHeader->Command) { case RFCOMM_Control_Test: - RFCOMM_ProcessTestCommand(CommandHeader, CommandData); + RFCOMM_ProcessTestCommand(CommandHeader, CommandDataLen, CommandData, Channel); break; case RFCOMM_Control_FlowControlEnable: - RFCOMM_ProcessFCECommand(CommandHeader, CommandData); + RFCOMM_ProcessFCECommand(CommandHeader, CommandData, Channel); break; case RFCOMM_Control_FlowControlDisable: - RFCOMM_ProcessFCDCommand(CommandHeader, CommandData); + RFCOMM_ProcessFCDCommand(CommandHeader, CommandData, Channel); break; case RFCOMM_Control_ModemStatus: - RFCOMM_ProcessMSCommand(CommandHeader, CommandData); + RFCOMM_ProcessMSCCommand(CommandHeader, CommandDataLen, CommandData, Channel); break; case RFCOMM_Control_RemotePortNegotiation: - RFCOMM_ProcessRPNCommand(CommandHeader, CommandData); + RFCOMM_ProcessRPNCommand(CommandHeader, CommandData, Channel); break; case RFCOMM_Control_RemoteLineStatus: - RFCOMM_ProcessRLSCommand(CommandHeader, CommandData); + RFCOMM_ProcessRLSCommand(CommandHeader, CommandData, Channel); break; case RFCOMM_Control_DLCParameterNegotiation: - RFCOMM_ProcessDPNCommand(CommandHeader, CommandData); + RFCOMM_ProcessDPNCommand(CommandHeader, CommandData, Channel); break; default: BT_RFCOMM_DEBUG(1, "<< Unknown Command"); @@ -72,49 +73,159 @@ void RFCOMM_ProcessControlCommand(const uint8_t* Command, Bluetooth_Channel_t* c } } -static void RFCOMM_ProcessTestCommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData) +static void RFCOMM_ProcessTestCommand(const RFCOMM_Command_t* const CommandHeader, const uint8_t CommandDataLen, + const uint8_t* CommandData, Bluetooth_Channel_t* const Channel) { + const uint8_t* Params = (const uint8_t*)CommandData; + BT_RFCOMM_DEBUG(1, "<< TEST Command"); + + struct + { + RFCOMM_Command_t CommandHeader; + uint8_t Length; + uint8_t TestData[CommandDataLen]; + } TestResponse; + + /* Fill out the Test response data */ + TestResponse.CommandHeader = (RFCOMM_Command_t){.Command = RFCOMM_Control_Test, .EA = true, .CR = false}; + TestResponse.Length = (CommandDataLen << 1) | 0x01; + memcpy(TestResponse.TestData, Params, CommandDataLen); + + BT_RFCOMM_DEBUG(1, ">> TEST Response"); + + /* Send the PDN response to acknowledge the command */ + RFCOMM_SendFrame(RFCOMM_CONTROL_DLCI, false, RFCOMM_Frame_UIH, sizeof(TestResponse), &TestResponse, Channel); } -static void RFCOMM_ProcessFCECommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData) +static void RFCOMM_ProcessFCECommand(const RFCOMM_Command_t* const CommandHeader, const uint8_t* CommandData, + Bluetooth_Channel_t* const Channel) { BT_RFCOMM_DEBUG(1, "<< FCE Command"); } -static void RFCOMM_ProcessFCDCommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData) +static void RFCOMM_ProcessFCDCommand(const RFCOMM_Command_t* const CommandHeader, const uint8_t* CommandData, + Bluetooth_Channel_t* const Channel) { BT_RFCOMM_DEBUG(1, "<< FCD Command"); } -static void RFCOMM_ProcessMSCommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData) +static void RFCOMM_ProcessMSCCommand(const RFCOMM_Command_t* const CommandHeader, const uint8_t CommandDataLen, + const uint8_t* CommandData, Bluetooth_Channel_t* const Channel) { - BT_RFCOMM_DEBUG(1, "<< MS Command"); + const RFCOMM_MSC_Parameters_t* Params = (const RFCOMM_MSC_Parameters_t*)CommandData; + + BT_RFCOMM_DEBUG(1, "<< MSC %s", (CommandHeader->CR) ? "Command" : "Response"); + BT_RFCOMM_DEBUG(2, "-- DLCI: 0x%02X", Params->Channel.DLCI); + + /* Ignore status flags sent to the control channel */ + if (Params->Channel.DLCI == RFCOMM_CONTROL_DLCI) + return; + + /* Retrieve existing channel configuration data, if already opened */ + RFCOMM_Channel_t* RFCOMMChannel = RFCOMM_GetChannelData(Params->Channel.DLCI); + + /* If the channel does not exist, abort */ + if (RFCOMMChannel == NULL) + return; + + /* Check if the MSC packet is a command or a response */ + if (CommandHeader->CR) + { + /* Save the new channel signals to the channel state structure */ + RFCOMMChannel->Remote.Signals = Params->Signals; + RFCOMMChannel->ConfigFlags |= RFCOMM_CONFIG_REMOTESIGNALS; + + /* If the command contains the optional break signals field, store the value */ + if (CommandDataLen == sizeof(RFCOMM_MSC_Parameters_t)) + RFCOMMChannel->Remote.BreakSignal = Params->BreakSignal; + + struct + { + RFCOMM_Command_t CommandHeader; + uint8_t Length; + RFCOMM_MSC_Parameters_t Params; + } MSResponse; + + /* Fill out the MS response data */ + MSResponse.CommandHeader = (RFCOMM_Command_t){.Command = RFCOMM_Control_ModemStatus, .EA = true, .CR = false}; + MSResponse.Length = (CommandDataLen << 1) | 0x01; + memcpy(&MSResponse.Params, Params, sizeof(RFCOMM_MSC_Parameters_t)); + + BT_RFCOMM_DEBUG(1, ">> MSC Response"); + + /* Send the MSC response to acknowledge the command */ + RFCOMM_SendFrame(RFCOMM_CONTROL_DLCI, false, RFCOMM_Frame_UIH, + (sizeof(MSResponse) - sizeof(MSResponse.Params) + CommandDataLen), &MSResponse, Channel); + } + else + { + /* Indicate that the remote device has acknowledged the sent signals */ + RFCOMMChannel->ConfigFlags |= RFCOMM_CONFIG_LOCALSIGNALS; + } } -static void RFCOMM_ProcessRPNCommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData) +static void RFCOMM_ProcessRPNCommand(const RFCOMM_Command_t* const CommandHeader, const uint8_t* CommandData, + Bluetooth_Channel_t* const Channel) { BT_RFCOMM_DEBUG(1, "<< RPN Command"); } -static void RFCOMM_ProcessRLSCommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData) +static void RFCOMM_ProcessRLSCommand(const RFCOMM_Command_t* const CommandHeader, const uint8_t* CommandData, + Bluetooth_Channel_t* const Channel) { BT_RFCOMM_DEBUG(1, "<< RLS Command"); } -static void RFCOMM_ProcessDPNCommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData) +static void RFCOMM_ProcessDPNCommand(const RFCOMM_Command_t* const CommandHeader, const uint8_t* CommandData, + Bluetooth_Channel_t* const Channel) { + const RFCOMM_DPN_Parameters_t* Params = (const RFCOMM_DPN_Parameters_t*)CommandData; + BT_RFCOMM_DEBUG(1, "<< DPN Command"); + BT_RFCOMM_DEBUG(2, "-- DLCI: 0x%02X", Params->DLCI); + + /* Ignore parameter negotiations to the control channel */ + if (Params->DLCI == RFCOMM_CONTROL_DLCI) + return; - /* Skip over the first data byte (Length field) since its size and value are fixed */ - RFCOMM_Channel_t* RFCOMMChannel = RFCOMM_GetChannelData(CommandData[2]); + /* Retrieve existing channel configuration data, if already opened */ + RFCOMM_Channel_t* RFCOMMChannel = RFCOMM_GetChannelData(Params->DLCI); + /* Check if the channel has no corresponding entry - remote did not open it first */ if (RFCOMMChannel == NULL) { - // TODO: Channel does not exist - create it + /* Create a new entry in the channel table for the new channel */ + RFCOMMChannel = RFCOMM_GetFreeChannelEntry(Params->DLCI); + + /* No free entry was found, discard the request */ + if (RFCOMMChannel == NULL) + { + BT_RFCOMM_DEBUG(2, "-- No Free Channel"); + return; + } } - RFCOMMChannel->Configured = true; + /* Save the new channel configuration */ + RFCOMMChannel->State = RFCOMM_Channel_Configure; + RFCOMMChannel->Priority = Params->Priority; + RFCOMMChannel->MTU = Params->MaximumFrameSize; + + struct + { + RFCOMM_Command_t CommandHeader; + uint8_t Length; + RFCOMM_DPN_Parameters_t Params; + } DPNResponse; + + /* Fill out the DPN response data */ + DPNResponse.CommandHeader = (RFCOMM_Command_t){.Command = RFCOMM_Control_DLCParameterNegotiation, .EA = true, .CR = false}; + DPNResponse.Length = (sizeof(DPNResponse.Params) << 1) | 0x01; + memcpy(&DPNResponse.Params, Params, sizeof(RFCOMM_DPN_Parameters_t)); + DPNResponse.Params.ConvergenceLayer = 0x00; // TODO: Enable credit based transaction support - // TODO: Read in channel data, ACK request + BT_RFCOMM_DEBUG(1, ">> DPN Response"); + + /* Send the DPN response to acknowledge the command */ + RFCOMM_SendFrame(RFCOMM_CONTROL_DLCI, false, RFCOMM_Frame_UIH, sizeof(DPNResponse), &DPNResponse, Channel); }