+++ /dev/null
-/*
- LUFA Library
- Copyright (C) Dean Camera, 2012.
-
- dean [at] fourwalledcubicle [dot] com
- www.lufa-lib.org
-*/
-
-/*
- Copyright 2012 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);
-}
-
projects / pub / lufa.git / blobdiff