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150 lines
5.6 KiB
150 lines
5.6 KiB
/*
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LUFA Library
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Copyright (C) Dean Camera, 2010.
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dean [at] fourwalledcubicle [dot] com
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www.fourwalledcubicle.com
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*/
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/*
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Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaim all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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/** \file
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*
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* Header file for RFCOMM.c.
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*/
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#ifndef _RFCOMM_H_
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#define _RFCOMM_H_
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/* Includes: */
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#include <avr/io.h>
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#include <avr/pgmspace.h>
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#include <string.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <LUFA/Common/Common.h>
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#include <LUFA/Drivers/Peripheral/SerialStream.h>
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#include "BluetoothStack.h"
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#include "RFCOMMControl.h"
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/* Macros: */
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#define BT_RFCOMM_DEBUG(l, s, ...) do { if (RFCOMM_DEBUG_LEVEL >= l) printf_P(PSTR("(RFCOMM) " s "\r\n"), ##__VA_ARGS__); } while (0)
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#define RFCOMM_DEBUG_LEVEL 0
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#define FRAME_POLL_FINAL (1 << 4)
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#define RFCOMM_CONTROL_DLCI 0
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#define RFCOMM_MAX_OPEN_CHANNELS 5
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/* Enums: */
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/** Enum for the types of RFCOMM frames which can be exchanged on a Bluetooth channel. */
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enum RFCOMM_Frame_Types_t
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{
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RFCOMM_Frame_DM = 0x0F, /**< Disconnected Mode Field */
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RFCOMM_Frame_DISC = 0x43, /**< Disconnect Field */
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RFCOMM_Frame_SABM = 0x2F, /**< Set Asynchronous Balance Mode Field */
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RFCOMM_Frame_UA = 0x63, /**< Unnumbered Acknowledgement Field */
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RFCOMM_Frame_UIH = 0xEF, /**< Unnumbered Information with Header check Field */
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};
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enum RFCOMM_Channel_States_t
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{
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RFCOMM_Channel_Closed = 0,
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RFCOMM_Channel_Configure = 1,
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RFCOMM_Channel_Open = 2,
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};
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/* Type Defines: */
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typedef struct
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{
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uint8_t DLCI;
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uint8_t State;
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uint8_t Priority;
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uint16_t MTU;
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uint8_t ConfigFlags;
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struct
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{
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uint8_t Signals;
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uint8_t BreakSignal;
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} Remote;
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struct
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{
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uint8_t Signals;
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uint8_t BreakSignal;
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} Local;
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} RFCOMM_Channel_t;
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/* External Variables: */
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extern RFCOMM_Channel_t RFCOMM_Channels[RFCOMM_MAX_OPEN_CHANNELS];
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/* Function Prototypes: */
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void RFCOMM_Initialize(void);
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void RFCOMM_ServiceChannels(Bluetooth_Channel_t* const ACLChannel);
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void RFCOMM_ProcessPacket(void* Data,
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Bluetooth_Channel_t* const ACLChannel);
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void RFCOMM_SendChannelSignals(const RFCOMM_Channel_t* const RFCOMMChannel,
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Bluetooth_Channel_t* const ACLChannel);
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void RFCOMM_SendData(const uint16_t DataLen,
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const uint8_t* Data,
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const RFCOMM_Channel_t* const RFCOMMChannel,
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Bluetooth_Channel_t* const ACLChannel);
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void RFCOMM_ChannelOpened(RFCOMM_Channel_t* const RFCOMMChannel);
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void RFCOMM_DataReceived(RFCOMM_Channel_t* const RFCOMMChannel,
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uint16_t DataLen,
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const uint8_t* Data);
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void RFCOMM_ChannelSignalsReceived(RFCOMM_Channel_t* const RFCOMMChannel);
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RFCOMM_Channel_t* RFCOMM_GetFreeChannelEntry(const uint8_t DLCI);
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RFCOMM_Channel_t* RFCOMM_GetChannelData(const uint8_t DLCI);
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uint16_t RFCOMM_GetVariableFieldValue(const uint8_t** BufferPos);
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void RFCOMM_SendFrame(const uint8_t DLCI,
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const bool CommandResponse,
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const uint8_t Control,
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const uint16_t DataLen,
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const void* Data,
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Bluetooth_Channel_t* const ACLChannel);
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#if defined(INCLUDE_FROM_RFCOMM_C)
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static uint8_t RFCOMM_GetFCSValue(const void* FrameStart,
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uint8_t Length);
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static void RFCOMM_ProcessDM(const RFCOMM_Address_t* const FrameAddress,
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Bluetooth_Channel_t* const ACLChannel);
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static void RFCOMM_ProcessDISC(const RFCOMM_Address_t* const FrameAddress,
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Bluetooth_Channel_t* const ACLChannel);
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static void RFCOMM_ProcessSABM(const RFCOMM_Address_t* const FrameAddress,
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Bluetooth_Channel_t* const ACLChannel);
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static void RFCOMM_ProcessUA(const RFCOMM_Address_t* const FrameAddress,
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Bluetooth_Channel_t* const ACLChannel);
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static void RFCOMM_ProcessUIH(const RFCOMM_Address_t* const FrameAddress,
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const uint16_t FrameLength,
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const uint8_t* FrameData,
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Bluetooth_Channel_t* const ACLChannel);
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#endif
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#endif
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