diff options
Diffstat (limited to 'Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothACLPackets.c')
| -rw-r--r-- | Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothACLPackets.c | 149 |
1 files changed, 75 insertions, 74 deletions
diff --git a/Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothACLPackets.c b/Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothACLPackets.c index 939b2ae5f..35b1e920d 100644 --- a/Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothACLPackets.c +++ b/Demos/Host/Incomplete/BluetoothHost/Lib/BluetoothACLPackets.c @@ -1,7 +1,7 @@ /* LUFA Library Copyright (C) Dean Camera, 2010. - + dean [at] fourwalledcubicle [dot] com www.fourwalledcubicle.com */ @@ -9,13 +9,13 @@ /* Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) - Permission to use, copy, modify, distribute, and sell this + Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted - without fee, provided that the above copyright notice appear in + without fee, provided that the above copyright notice appear in all copies and that both that the copyright notice and this - permission notice and warranty disclaimer appear in supporting - documentation, and that the name of the author not be used in - advertising or publicity pertaining to distribution of the + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the software without specific, written prior permission. The author disclaim all warranties with regard to this @@ -50,14 +50,14 @@ void Bluetooth_ACLTask(void) { /* Process incoming ACL packets, if any */ Bluetooth_ProcessIncomingACLPackets(); - + /* Check for any half-open channels, send configuration details to the remote device if found */ for (uint8_t i = 0; i < BLUETOOTH_MAX_OPEN_CHANNELS; i++) { Bluetooth_Channel_t* ChannelData = &Bluetooth_Connection.Channels[i]; - + bool MustSendConfigReq = true; - + /* Check if we are in a channel state which requires a configuration request to be sent */ switch (ChannelData->State) { @@ -71,7 +71,7 @@ void Bluetooth_ACLTask(void) MustSendConfigReq = false; break; } - + /* Only send a configuration request if it the channel was in a state which required it */ if (MustSendConfigReq) { @@ -79,14 +79,14 @@ void Bluetooth_ACLTask(void) { BT_Signal_Header_t SignalCommandHeader; BT_Signal_ConfigurationReq_t ConfigurationRequest; - + struct { BT_Config_Option_Header_t Header; uint16_t Value; } Option_LocalMTU; } PacketData; - + /* Fill out the Signal Command header in the response packet */ PacketData.SignalCommandHeader.Code = BT_SIGNAL_CONFIGURATION_REQUEST; PacketData.SignalCommandHeader.Identifier = ++Bluetooth_Connection.SignalingIdentifier; @@ -101,7 +101,7 @@ void Bluetooth_ACLTask(void) PacketData.Option_LocalMTU.Value = ChannelData->LocalMTU; Bluetooth_SendPacket(&PacketData, sizeof(PacketData), NULL); - + BT_ACL_DEBUG(1, ">> L2CAP Configuration Request"); BT_ACL_DEBUG(2, "-- Destination Channel: 0x%04X", PacketData.ConfigurationRequest.DestinationChannel); } @@ -119,13 +119,13 @@ static void Bluetooth_ProcessIncomingACLPackets(void) Pipe_SelectPipe(BLUETOOTH_DATA_IN_PIPE); Pipe_Unfreeze(); - + if (!(Pipe_IsReadWriteAllowed())) { Pipe_Freeze(); return; } - + /* Read in the received ACL packet headers when it has been discovered that a packet has been received */ Pipe_Read_Stream_LE(&ACLPacketHeader, sizeof(ACLPacketHeader)); Pipe_Read_Stream_LE(&DataHeader, sizeof(DataHeader)); @@ -143,7 +143,7 @@ static void Bluetooth_ProcessIncomingACLPackets(void) /* Read in the Signal Command header of the incoming packet */ BT_Signal_Header_t SignalCommandHeader; Pipe_Read_Stream_LE(&SignalCommandHeader, sizeof(SignalCommandHeader)); - + /* Dispatch to the appropriate handler function based on the Signal message code */ switch (SignalCommandHeader.Code) { @@ -173,20 +173,20 @@ static void Bluetooth_ProcessIncomingACLPackets(void) break; case BT_SIGNAL_COMMAND_REJECT: BT_ACL_DEBUG(1, "<< Command Reject"); - + uint16_t RejectReason; Pipe_Read_Stream_LE(&RejectReason, sizeof(RejectReason)); Pipe_Discard_Stream(ACLPacketHeader.DataLength - sizeof(RejectReason)); Pipe_ClearIN(); - Pipe_Freeze(); - + Pipe_Freeze(); + BT_ACL_DEBUG(2, "-- Reason: %d", RejectReason); break; default: BT_ACL_DEBUG(1, "<< Unknown Signaling Command 0x%02X", SignalCommandHeader.Code); - + Pipe_Discard_Stream(ACLPacketHeader.DataLength); - Pipe_ClearIN(); + Pipe_ClearIN(); Pipe_Freeze(); break; } @@ -198,7 +198,7 @@ static void Bluetooth_ProcessIncomingACLPackets(void) Pipe_Read_Stream_LE(PacketData, DataHeader.PayloadLength); Pipe_ClearIN(); Pipe_Freeze(); - + Bluetooth_PacketReceived(PacketData, DataHeader.PayloadLength, Bluetooth_GetChannelData(DataHeader.DestinationChannel, CHANNEL_SEARCH_LOCALNUMBER)); } @@ -221,9 +221,9 @@ Bluetooth_Channel_t* Bluetooth_GetChannelData(const uint16_t SearchValue, /* Closed channels should be ignored as they are not considered valid data */ if (ChannelData->State == BT_Channel_Closed) continue; - + bool FoundMatch = false; - + /* Search the current channel for the search key to see if it matches */ switch (SearchKey) { @@ -237,7 +237,7 @@ Bluetooth_Channel_t* Bluetooth_GetChannelData(const uint16_t SearchValue, FoundMatch = (SearchValue == ChannelData->PSM); break; } - + if (FoundMatch) return ChannelData; } @@ -285,9 +285,9 @@ uint8_t Bluetooth_SendPacket(void* Data, Pipe_Write_Stream_LE(&DataHeader, sizeof(DataHeader)); Pipe_Write_Stream_LE(Data, DataLen); Pipe_ClearOUT(); - + Pipe_Freeze(); - + BT_ACL_DEBUG(2, ""); BT_ACL_DEBUG(2, "Packet Sent"); BT_ACL_DEBUG(2, "-- Connection Handle: 0x%04X", (ACLPacketHeader.ConnectionHandle & 0x0FFF)); @@ -319,7 +319,7 @@ Bluetooth_Channel_t* Bluetooth_OpenChannel(const uint16_t PSM) if (Bluetooth_Connection.Channels[i].State == BT_Channel_Closed) { ChannelData = &Bluetooth_Connection.Channels[i]; - + /* Set the new channel structure's local channel number to a unique value within the connection orientated channel address space */ ChannelData->LocalNumber = (BT_CHANNELNUMBER_BASEOFFSET + i); @@ -336,7 +336,7 @@ Bluetooth_Channel_t* Bluetooth_OpenChannel(const uint16_t PSM) ChannelData->PSM = PSM; ChannelData->LocalMTU = MAXIMUM_CHANNEL_MTU; ChannelData->State = BT_Channel_WaitConnectRsp; - + struct { BT_Signal_Header_t SignalCommandHeader; @@ -347,11 +347,11 @@ Bluetooth_Channel_t* Bluetooth_OpenChannel(const uint16_t PSM) PacketData.SignalCommandHeader.Code = BT_SIGNAL_CONNECTION_REQUEST; PacketData.SignalCommandHeader.Identifier = ++Bluetooth_Connection.SignalingIdentifier; PacketData.SignalCommandHeader.Length = sizeof(PacketData.ConnectionRequest); - + /* Fill out the Connection Request in the response packet */ PacketData.ConnectionRequest.PSM = PSM; PacketData.ConnectionRequest.SourceChannel = ChannelData->LocalNumber; - + Bluetooth_SendPacket(&PacketData, sizeof(PacketData), NULL); BT_ACL_DEBUG(1, ">> L2CAP Connection Request"); @@ -385,7 +385,7 @@ void Bluetooth_CloseChannel(Bluetooth_Channel_t* const ACLChannel) BT_Signal_Header_t SignalCommandHeader; BT_Signal_DisconnectionReq_t DisconnectionRequest; } PacketData; - + /* Fill out the Signal Command header in the response packet */ PacketData.SignalCommandHeader.Code = BT_SIGNAL_DISCONNECTION_REQUEST; PacketData.SignalCommandHeader.Identifier = ++Bluetooth_Connection.SignalingIdentifier; @@ -396,10 +396,10 @@ void Bluetooth_CloseChannel(Bluetooth_Channel_t* const ACLChannel) PacketData.DisconnectionRequest.SourceChannel = ACLChannel->LocalNumber; Bluetooth_SendPacket(&PacketData, sizeof(PacketData), NULL); - + BT_ACL_DEBUG(1, ">> L2CAP Disconnection Request"); - BT_ACL_DEBUG(2, "-- Destination Channel: 0x%04X", PacketData.DisconnectionRequest.DestinationChannel); - BT_ACL_DEBUG(2, "-- Source Channel: 0x%04X", PacketData.DisconnectionRequest.SourceChannel); + BT_ACL_DEBUG(2, "-- Destination Channel: 0x%04X", PacketData.DisconnectionRequest.DestinationChannel); + BT_ACL_DEBUG(2, "-- Source Channel: 0x%04X", PacketData.DisconnectionRequest.SourceChannel); } /** Internal Bluetooth stack Signal Command processing routine for a Connection Request command. @@ -409,12 +409,12 @@ void Bluetooth_CloseChannel(Bluetooth_Channel_t* const ACLChannel) static inline void Bluetooth_Signal_ConnectionReq(const BT_Signal_Header_t* const SignalCommandHeader) { BT_Signal_ConnectionReq_t ConnectionRequest; - + Pipe_Read_Stream_LE(&ConnectionRequest, sizeof(ConnectionRequest)); Pipe_ClearIN(); Pipe_Freeze(); - + BT_ACL_DEBUG(1, "<< L2CAP Connection Request"); BT_ACL_DEBUG(2, "-- PSM: 0x%04X", ConnectionRequest.PSM); BT_ACL_DEBUG(2, "-- Source Channel: 0x%04X", ConnectionRequest.SourceChannel); @@ -439,7 +439,7 @@ static inline void Bluetooth_Signal_ConnectionReq(const BT_Signal_Header_t* cons } } } - + uint8_t ChannelStatus = BT_CONNECTION_REFUSED_RESOURCES; /* Reset the channel item contents only if a channel entry was found for it */ @@ -452,15 +452,15 @@ static inline void Bluetooth_Signal_ConnectionReq(const BT_Signal_Header_t* cons ChannelData->PSM = ConnectionRequest.PSM; ChannelData->LocalMTU = MAXIMUM_CHANNEL_MTU; ChannelData->State = BT_Channel_Config_WaitConfig; - + ChannelStatus = BT_CONNECTION_SUCCESSFUL; } else { - ChannelStatus = BT_CONNECTION_REFUSED_PSM; + ChannelStatus = BT_CONNECTION_REFUSED_PSM; } } - + struct { BT_Signal_Header_t SignalCommandHeader; @@ -477,7 +477,7 @@ static inline void Bluetooth_Signal_ConnectionReq(const BT_Signal_Header_t* cons ResponsePacket.ConnectionResponse.SourceChannel = ChannelData->RemoteNumber; ResponsePacket.ConnectionResponse.Result = ChannelStatus; ResponsePacket.ConnectionResponse.Status = 0x00; - + Bluetooth_SendPacket(&ResponsePacket, sizeof(ResponsePacket), NULL); BT_ACL_DEBUG(1, ">> L2CAP Connection Response"); @@ -493,16 +493,16 @@ static inline void Bluetooth_Signal_ConnectionReq(const BT_Signal_Header_t* cons static inline void Bluetooth_Signal_ConnectionResp(const BT_Signal_Header_t* const SignalCommandHeader) { BT_Signal_ConnectionResp_t ConnectionResponse; - + Pipe_Read_Stream_LE(&ConnectionResponse, sizeof(ConnectionResponse)); Pipe_ClearIN(); Pipe_Freeze(); BT_ACL_DEBUG(1, "<< L2CAP Connection Response"); - BT_ACL_DEBUG(2, "-- Result: 0x%02X", ConnectionResponse.Result); - BT_ACL_DEBUG(2, "-- Source Channel: 0x%04X", ConnectionResponse.SourceChannel); - BT_ACL_DEBUG(2, "-- Destination Channel: 0x%04X", ConnectionResponse.DestinationChannel); + BT_ACL_DEBUG(2, "-- Result: 0x%02X", ConnectionResponse.Result); + BT_ACL_DEBUG(2, "-- Source Channel: 0x%04X", ConnectionResponse.SourceChannel); + BT_ACL_DEBUG(2, "-- Destination Channel: 0x%04X", ConnectionResponse.DestinationChannel); /* Search for the referenced channel in the channel information list */ Bluetooth_Channel_t* ChannelData = Bluetooth_GetChannelData(ConnectionResponse.SourceChannel, CHANNEL_SEARCH_LOCALNUMBER); @@ -524,12 +524,12 @@ static inline void Bluetooth_Signal_ConnectionResp(const BT_Signal_Header_t* con static inline void Bluetooth_Signal_ConfigurationReq(const BT_Signal_Header_t* const SignalCommandHeader) { BT_Signal_ConfigurationReq_t ConfigurationRequest; - + /* Allocate a buffer large enough to hold the variable number of configuration options in the request */ uint8_t OptionsLen = (SignalCommandHeader->Length - sizeof(ConfigurationRequest)); uint8_t Options[OptionsLen]; - Pipe_Read_Stream_LE(&ConfigurationRequest, sizeof(ConfigurationRequest)); + Pipe_Read_Stream_LE(&ConfigurationRequest, sizeof(ConfigurationRequest)); Pipe_Read_Stream_LE(&Options, sizeof(Options)); Pipe_ClearIN(); @@ -554,7 +554,7 @@ static inline void Bluetooth_Signal_ConfigurationReq(const BT_Signal_Header_t* c BT_ACL_DEBUG(2, "-- Option Type: 0x%04X", OptionHeader->Type); BT_ACL_DEBUG(2, "-- Option Length: 0x%04X", (sizeof(BT_Config_Option_Header_t) + OptionHeader->Length)); - + /* Store the remote MTU option's value if present */ if (OptionHeader->Type == BT_CONFIG_OPTION_MTU) ChannelData->RemoteMTU = *((uint16_t*)OptionData); @@ -563,7 +563,7 @@ static inline void Bluetooth_Signal_ConfigurationReq(const BT_Signal_Header_t* c OptionPos += (sizeof(BT_Config_Option_Header_t) + OptionHeader->Length); } } - + struct { BT_Signal_Header_t SignalCommandHeader; @@ -616,14 +616,14 @@ static inline void Bluetooth_Signal_ConfigurationResp(const BT_Signal_Header_t* Pipe_ClearIN(); Pipe_Freeze(); - + BT_ACL_DEBUG(1, "<< L2CAP Configuration Response"); BT_ACL_DEBUG(2, "-- Source Channel: 0x%04X", ConfigurationResponse.SourceChannel); BT_ACL_DEBUG(2, "-- Result: 0x%02X", ConfigurationResponse.Result); /* Search for the referenced channel in the channel information list */ Bluetooth_Channel_t* ChannelData = Bluetooth_GetChannelData(ConfigurationResponse.SourceChannel, CHANNEL_SEARCH_REMOTENUMBER); - + /* Only update the channel's state if it was found in the channel list */ if (ChannelData != NULL) { @@ -639,7 +639,7 @@ static inline void Bluetooth_Signal_ConfigurationResp(const BT_Signal_Header_t* ChannelData->State = BT_Channel_Open; Bluetooth_ChannelOpened(ChannelData); break; - } + } } else { @@ -656,16 +656,16 @@ static inline void Bluetooth_Signal_ConfigurationResp(const BT_Signal_Header_t* static inline void Bluetooth_Signal_DisconnectionReq(const BT_Signal_Header_t* const SignalCommandHeader) { BT_Signal_DisconnectionReq_t DisconnectionRequest; - + Pipe_Read_Stream_LE(&DisconnectionRequest, sizeof(DisconnectionRequest)); BT_ACL_DEBUG(1, "<< L2CAP Disconnection Request"); BT_ACL_DEBUG(2, "-- Destination Channel: 0x%04X", DisconnectionRequest.DestinationChannel); BT_ACL_DEBUG(2, "-- Source Channel: 0x%04X", DisconnectionRequest.SourceChannel); - + Pipe_ClearIN(); Pipe_Freeze(); - + /* Search for the referenced channel in the channel information list */ Bluetooth_Channel_t* ChannelData = Bluetooth_GetChannelData(DisconnectionRequest.SourceChannel, CHANNEL_SEARCH_REMOTENUMBER); @@ -702,20 +702,20 @@ static inline void Bluetooth_Signal_DisconnectionReq(const BT_Signal_Header_t* c static inline void Bluetooth_Signal_DisconnectionResp(const BT_Signal_Header_t* const SignalCommandHeader) { BT_Signal_DisconnectionResp_t DisconnectionResponse; - + Pipe_Read_Stream_LE(&DisconnectionResponse, sizeof(DisconnectionResponse)); BT_ACL_DEBUG(1, "<< L2CAP Disconnection Response"); BT_ACL_DEBUG(2, "-- Destination Channel: 0x%04X", DisconnectionResponse.DestinationChannel); BT_ACL_DEBUG(2, "-- Source Channel: 0x%04X", DisconnectionResponse.SourceChannel); - + Pipe_ClearIN(); Pipe_Freeze(); - + /* Search for the referenced channel in the channel information list */ Bluetooth_Channel_t* ChannelData = Bluetooth_GetChannelData(DisconnectionResponse.SourceChannel, CHANNEL_SEARCH_REMOTENUMBER); - - /* If the channel was found in the channel list, close it */ + + /* If the channel was found in the channel list, close it */ if (ChannelData != NULL) ChannelData->State = BT_Channel_Closed; } @@ -727,10 +727,10 @@ static inline void Bluetooth_Signal_DisconnectionResp(const BT_Signal_Header_t* static inline void Bluetooth_Signal_EchoReq(const BT_Signal_Header_t* const SignalCommandHeader) { BT_ACL_DEBUG(1, "<< L2CAP Echo Request"); - + Pipe_ClearIN(); Pipe_Freeze(); - + struct { BT_Signal_Header_t SignalCommandHeader; @@ -740,7 +740,7 @@ static inline void Bluetooth_Signal_EchoReq(const BT_Signal_Header_t* const Sign ResponsePacket.SignalCommandHeader.Code = BT_SIGNAL_ECHO_RESPONSE; ResponsePacket.SignalCommandHeader.Identifier = SignalCommandHeader->Identifier; ResponsePacket.SignalCommandHeader.Length = 0; - + Bluetooth_SendPacket(&ResponsePacket, sizeof(ResponsePacket), NULL); BT_ACL_DEBUG(1, ">> L2CAP Echo Response"); @@ -758,7 +758,7 @@ static inline void Bluetooth_Signal_InformationReq(const BT_Signal_Header_t* con BT_ACL_DEBUG(1, "<< L2CAP Information Request"); BT_ACL_DEBUG(2, "-- Info Type: 0x%04X", InformationRequest.InfoType); - + Pipe_ClearIN(); Pipe_Freeze(); @@ -766,25 +766,25 @@ static inline void Bluetooth_Signal_InformationReq(const BT_Signal_Header_t* con { BT_Signal_Header_t SignalCommandHeader; BT_Signal_InformationResp_t InformationResponse; - + uint8_t Data[4]; } ResponsePacket; - + uint8_t DataLen = 0; - + /* Retrieve the requested information and store it in the outgoing packet, if found */ switch (InformationRequest.InfoType) { - case BT_INFOREQ_MTU: + case BT_INFOREQ_MTU: ResponsePacket.InformationResponse.Result = BT_INFORMATION_SUCCESSFUL; DataLen = 2; - + *((uint16_t*)&ResponsePacket.Data) = MAXIMUM_CHANNEL_MTU; break; case BT_INFOREQ_EXTENDEDFEATURES: ResponsePacket.InformationResponse.Result = BT_INFORMATION_SUCCESSFUL; DataLen = 4; - + *((uint32_t*)&ResponsePacket.Data) = 0; break; default: @@ -792,7 +792,7 @@ static inline void Bluetooth_Signal_InformationReq(const BT_Signal_Header_t* con DataLen = 0; break; } - + /* Fill out the Signal Command header in the response packet */ ResponsePacket.SignalCommandHeader.Code = BT_SIGNAL_INFORMATION_RESPONSE; ResponsePacket.SignalCommandHeader.Identifier = SignalCommandHeader->Identifier; @@ -800,9 +800,10 @@ static inline void Bluetooth_Signal_InformationReq(const BT_Signal_Header_t* con /* Fill out the Information Response in the response packet */ ResponsePacket.InformationResponse.InfoType = InformationRequest.InfoType; - + Bluetooth_SendPacket(&ResponsePacket, (sizeof(ResponsePacket) - sizeof(ResponsePacket.Data) + DataLen), NULL); - BT_ACL_DEBUG(1, ">> L2CAP Information Response"); + BT_ACL_DEBUG(1, ">> L2CAP Information Response"); BT_ACL_DEBUG(2, "-- Result: 0x%02X", ResponsePacket.InformationResponse.Result); } + |