X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/67bc62510942eb83dd9c4ab323ed09d83764bf4b..77a9df36a77d2523dd2bc24fa17f9f04c6c175c5:/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..7d5a46113 100644 --- a/Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMMControl.c +++ b/Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMMControl.c @@ -1,120 +1,245 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2010. - - dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com -*/ - -/* - Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - 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 - 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 - software without specific, written prior permission. - - The author disclaim all warranties with regard to this - software, including all implied warranties of merchantability - and fitness. In no event shall the author be liable for any - special, indirect or consequential damages or any damages - whatsoever resulting from loss of use, data or profits, whether - in an action of contract, negligence or other tortious action, - arising out of or in connection with the use or performance of - this software. -*/ - -/** \file - * - * RFCOMM multiplexer control layer module. This module handles multiplexer - * channel commands to the control DLCI in the RFCOMM layer, to open, configure, - * test and close logical RFCOMM channels. - */ - -#define INCLUDE_FROM_RFCOMM_CONTROL_C -#include "RFCOMMControl.h" - -void RFCOMM_ProcessControlCommand(const uint8_t* Command, Bluetooth_Channel_t* const Channel) -{ - const RFCOMM_Command_t* CommandHeader = (const RFCOMM_Command_t*)Command; - const uint8_t* CommandData = (const uint8_t*)Command + sizeof(RFCOMM_Command_t); - - switch (CommandHeader->Command) - { - case RFCOMM_Control_Test: - RFCOMM_ProcessTestCommand(CommandHeader, CommandData); - break; - case RFCOMM_Control_FlowControlEnable: - RFCOMM_ProcessFCECommand(CommandHeader, CommandData); - break; - case RFCOMM_Control_FlowControlDisable: - RFCOMM_ProcessFCDCommand(CommandHeader, CommandData); - break; - case RFCOMM_Control_ModemStatus: - RFCOMM_ProcessMSCommand(CommandHeader, CommandData); - break; - case RFCOMM_Control_RemotePortNegotiation: - RFCOMM_ProcessRPNCommand(CommandHeader, CommandData); - break; - case RFCOMM_Control_RemoteLineStatus: - RFCOMM_ProcessRLSCommand(CommandHeader, CommandData); - break; - case RFCOMM_Control_DLCParameterNegotiation: - RFCOMM_ProcessDPNCommand(CommandHeader, CommandData); - break; - default: - BT_RFCOMM_DEBUG(1, "<< Unknown Command"); - break; - } -} - -static void RFCOMM_ProcessTestCommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData) -{ - BT_RFCOMM_DEBUG(1, "<< TEST Command"); -} - -static void RFCOMM_ProcessFCECommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData) -{ - BT_RFCOMM_DEBUG(1, "<< FCE Command"); -} - -static void RFCOMM_ProcessFCDCommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData) -{ - BT_RFCOMM_DEBUG(1, "<< FCD Command"); -} - -static void RFCOMM_ProcessMSCommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData) -{ - BT_RFCOMM_DEBUG(1, "<< MS Command"); -} - -static void RFCOMM_ProcessRPNCommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData) -{ - BT_RFCOMM_DEBUG(1, "<< RPN Command"); -} - -static void RFCOMM_ProcessRLSCommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData) -{ - BT_RFCOMM_DEBUG(1, "<< RLS Command"); -} - -static void RFCOMM_ProcessDPNCommand(const RFCOMM_Command_t* CommandHeader, const uint8_t* CommandData) -{ - BT_RFCOMM_DEBUG(1, "<< DPN Command"); - - /* Skip over the first data byte (Length field) since its size and value are fixed */ - RFCOMM_Channel_t* RFCOMMChannel = RFCOMM_GetChannelData(CommandData[2]); - - if (RFCOMMChannel == NULL) - { - // TODO: Channel does not exist - create it - } - - RFCOMMChannel->Configured = true; - - // TODO: Read in channel data, ACK request -} +/* + LUFA Library + Copyright (C) Dean Camera, 2011. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com) + + 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 + 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 + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * + * RFCOMM multiplexer control layer module. This module handles multiplexer + * channel commands to the control DLCI in the RFCOMM layer, to open, configure, + * test and close logical RFCOMM channels. + */ + +#define INCLUDE_FROM_RFCOMM_CONTROL_C +#include "RFCOMMControl.h" + +void RFCOMM_ProcessControlCommand(const uint8_t* Command, + Bluetooth_Channel_t* const ACLChannel) +{ + 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, CommandDataLen, CommandData, ACLChannel); + break; + case RFCOMM_Control_FlowControlEnable: + RFCOMM_ProcessFCECommand(CommandHeader, CommandData, ACLChannel); + break; + case RFCOMM_Control_FlowControlDisable: + RFCOMM_ProcessFCDCommand(CommandHeader, CommandData, ACLChannel); + break; + case RFCOMM_Control_ModemStatus: + RFCOMM_ProcessMSCCommand(CommandHeader, CommandDataLen, CommandData, ACLChannel); + break; + case RFCOMM_Control_RemotePortNegotiation: + RFCOMM_ProcessRPNCommand(CommandHeader, CommandData, ACLChannel); + break; + case RFCOMM_Control_RemoteLineStatus: + RFCOMM_ProcessRLSCommand(CommandHeader, CommandData, ACLChannel); + break; + case RFCOMM_Control_DLCParameterNegotiation: + RFCOMM_ProcessDPNCommand(CommandHeader, CommandData, ACLChannel); + break; + default: + BT_RFCOMM_DEBUG(1, "<< Unknown Command"); + break; + } +} + +static void RFCOMM_ProcessTestCommand(const RFCOMM_Command_t* const CommandHeader, + const uint8_t CommandDataLen, + const uint8_t* CommandData, + Bluetooth_Channel_t* const ACLChannel) +{ + 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, ACLChannel); +} + +static void RFCOMM_ProcessFCECommand(const RFCOMM_Command_t* const CommandHeader, + const uint8_t* CommandData, + Bluetooth_Channel_t* const ACLChannel) +{ + BT_RFCOMM_DEBUG(1, "<< FCE Command"); +} + +static void RFCOMM_ProcessFCDCommand(const RFCOMM_Command_t* const CommandHeader, + const uint8_t* CommandData, + Bluetooth_Channel_t* const ACLChannel) +{ + BT_RFCOMM_DEBUG(1, "<< FCD Command"); +} + +static void RFCOMM_ProcessMSCCommand(const RFCOMM_Command_t* const CommandHeader, + const uint8_t CommandDataLen, + const uint8_t* CommandData, + Bluetooth_Channel_t* const ACLChannel) +{ + 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; + + /* Notify the user application that the signals have been received */ + RFCOMM_ChannelSignalsReceived(RFCOMMChannel); + + 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, ACLChannel); + } + else + { + /* Indicate that the remote device has acknowledged the sent signals */ + RFCOMMChannel->ConfigFlags |= RFCOMM_CONFIG_LOCALSIGNALS; + } +} + +static void RFCOMM_ProcessRPNCommand(const RFCOMM_Command_t* const CommandHeader, + const uint8_t* CommandData, + Bluetooth_Channel_t* const ACLChannel) +{ + BT_RFCOMM_DEBUG(1, "<< RPN Command"); +} + +static void RFCOMM_ProcessRLSCommand(const RFCOMM_Command_t* const CommandHeader, + const uint8_t* CommandData, + Bluetooth_Channel_t* const ACLChannel) +{ + BT_RFCOMM_DEBUG(1, "<< RLS Command"); +} + +static void RFCOMM_ProcessDPNCommand(const RFCOMM_Command_t* const CommandHeader, + const uint8_t* CommandData, + Bluetooth_Channel_t* const ACLChannel) +{ + 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; + + /* 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) + { + /* 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; + } + } + + /* 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 + + 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, ACLChannel); +} +