Demos/Host/Incomplete/BluetoothHost/Lib/RFCOMM.h

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2010.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, distribute, and sell this
  13   software and its documentation for any purpose is hereby granted
  14   without fee, provided that the above copyright notice appear in
  15   all copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaim all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 /** \file
  32  *
  33  *  Header file for RFCOMM.c.
  34  */
  35
  36 #ifndef _RFCOMM_H_
  37 #define _RFCOMM_H_
  38
  39         /* Includes: */
  40                 #include <avr/io.h>
  41                 #include <avr/pgmspace.h>
  42                 #include <string.h>
  43                 #include <stdbool.h>
  44                 #include <stdio.h>
  45
  46                 #include <LUFA/Common/Common.h>
  47                 #include <LUFA/Drivers/Peripheral/SerialStream.h>
  48
  49                 #include "BluetoothStack.h"
  50
  51         /* Macros: */
  52                 #define BT_RFCOMM_DEBUG(l, s, ...)              do { if (RFCOMM_DEBUG_LEVEL >= l) printf_P(PSTR("(RFCOMM) " s "\r\n"), ##__VA_ARGS__); } while (0)
  53                 #define RFCOMM_DEBUG_LEVEL                      2
  54
  55                 #define FRAME_POLL_FINAL                        (1 << 4)
  56
  57         /* Enums: */
  58                 /** Enum for the types of RFCOMM frames which can be exchanged on a Bluetooth channel. */
  59                 enum RFCOMM_Frame_Types_t
  60                 {
  61                         RFCOMM_Frame_SABM  = 0x2F, /**< Set Asynchronous Balance Mode Field */
  62                         RFCOMM_Frame_UA    = 0x63, /**< Unnumbered Acknowledgement Field */
  63                         RFCOMM_Frame_DM    = 0x0F, /**< Disconnected Mode Field */
  64                         RFCOMM_Frame_DISC  = 0x43, /**< Disconnect Field */
  65                         RFCOMM_Frame_UIH   = 0xEF, /**< Unnumbered Information with Header check Field */
  66                 };
  67
  68         /* Type Defines: */
  69                 typedef struct
  70                 {
  71                         struct
  72                         {
  73                                 unsigned char LogicalChannel   : 6;
  74                                 unsigned char PollResponse     : 1;
  75                                 unsigned char LastAddressOctet : 1;
  76                         } Address;
  77
  78                         uint8_t Control;
  79                 } RFCOMM_Header_t;
  80
  81         /* Function Prototypes: */
  82                 void RFCOMM_Initialize(void);
  83                 void RFCOMM_ProcessPacket(void* Data, Bluetooth_Channel_t* const Channel);
  84
  85                 #if defined(INCLUDE_FROM_RFCOMM_C)
  86                         static void RFCOMM_ProcessSABM(const RFCOMM_Header_t* const FrameHeader, Bluetooth_Channel_t* const Channel);
  87                         static void RFCOMM_ProcessUA(const RFCOMM_Header_t* const FrameHeader, Bluetooth_Channel_t* const Channel);
  88                         static void RFCOMM_ProcessDM(const RFCOMM_Header_t* const FrameHeader, Bluetooth_Channel_t* const Channel);
  89                         static void RFCOMM_ProcessDISC(const RFCOMM_Header_t* const FrameHeader, Bluetooth_Channel_t* const Channel);
  90                         static void RFCOMM_ProcessUIH(const RFCOMM_Header_t* const FrameHeader, Bluetooth_Channel_t* const Channel);
  91
  92                         static uint8_t  RFCOMM_GetFCSValue(const void* FrameStart, uint16_t Length);
  93                         static uint16_t RFCOMM_GetFrameDataLength(const uint8_t** BufferPos);
  94                 #endif
  95
  96 #endif