Demos/Host/Incomplete/BluetoothHost/Lib/ServiceDiscoveryProtocol.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 #ifndef _SERVICEDISCOVERYPROTOCOL_H_
  32 #define _SERVICEDISCOVERYPROTOCOL_H_
  33
  34         /* Includes: */
  35                 #include <avr/io.h>
  36                 #include <string.h>
  37                 #include <stdbool.h>
  38                 #include <stdio.h>
  39
  40                 #include <LUFA/Common/Common.h>
  41                 #include <LUFA/Drivers/Peripheral/SerialStream.h>
  42
  43                 #include "BluetoothStack.h"
  44
  45         /* Macros: */
  46                 #define BT_SDP_DEBUG(l, s, ...)                 do { if (SDP_DEBUG_LEVEL >= l) printf_P(PSTR("(SDP) " s "\r\n"), ##__VA_ARGS__); } while (0)
  47                 #define SDP_DEBUG_LEVEL                         2
  48
  49                 #define SDP_PDU_ERRORRESPONSE                   0x01
  50                 #define SDP_PDU_SERVICESEARCHREQUEST            0x02
  51                 #define SDP_PDU_SERVICESEARCHRESPONSE           0x03
  52                 #define SDP_PDU_SERVICEATTRIBUTEREQUEST         0x04
  53                 #define SDP_PDU_SERVICEATTRIBUTERESPONSE        0x05
  54                 #define SDP_PDU_SERVICESEARCHATTRIBUTEREQUEST   0x06
  55                 #define SDP_PDU_SERVICESEARCHATTRIBUTERESPONSE  0x07
  56
  57                 #define SDP_ATTRIBUTE_NAME                      0x0000
  58
  59                 #define SDP_ATTRIBUTE_ID_SERVICERECORDHANDLE    0x0000
  60                 #define SDP_ATTRIBUTE_ID_SERVICECLASSIDS        0x0001
  61                 #define SDP_ATTRIBUTE_ID_LANGIDOFFSET           0x0006
  62                 #define SDP_ATTRIBUTE_ID_AVAILABILITY           0x0008
  63                 #define SDP_ATTRIBUTE_IDO_DESCRIPTION           0x0001
  64                 #define SDP_ATTRIBUTE_IDO_PROVIDER              0x0002
  65
  66                 /** Size of a full 128 bit UUID, in bytes */
  67                 #define UUID_SIZE_BYTES                         16
  68
  69                 /** First 96 bits common to all standadized Bluetooth services */
  70                 #define BASE_96BIT_UUID                         0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00
  71
  72                 /** Terminator for a service attribute table of type \ref ServiceAttributeTable_t. */
  73                 #define SERVICE_ATTRIBUTE_TABLE_TERMINATOR      {.Data = NULL}
  74
  75         /* Enums: */
  76                 enum ServiceDiscovery_DataTypes_t
  77                 {
  78                         SDP_DATATYPE_Nill        = (0 << 3),
  79                         SDP_DATATYPE_UnsignedInt = (1 << 3),
  80                         SDP_DATATYPE_SignedInt   = (2 << 3),
  81                         SDP_DATATYPE_UUID        = (3 << 3),
  82                         SDP_DATATYPE_String      = (4 << 3),
  83                         SDP_DATATYPE_Boolean     = (5 << 3),
  84                         SDP_DATATYPE_Sequence    = (6 << 3),
  85                         SDP_DATATYPE_Alternative = (7 << 3),
  86                         SDP_DATATYPE_URL         = (8 << 3),
  87                 };
  88
  89         /* Type Defines: */
  90                 typedef struct
  91                 {
  92                         uint8_t  PDU;
  93                         uint16_t TransactionID;
  94                         uint16_t ParameterLength;
  95                 } SDP_PDUHeader_t;
  96
  97                 typedef struct
  98                 {
  99                         uint16_t    AttributeID;
 100                         const void* Data;
 101                 } ServiceAttributeTable_t;
 102
 103                 typedef struct
 104                 {
 105                         uint8_t UUID[16];
 106                         const void* AttributeTable;
 107                 } ServiceTable_t;
 108
 109                 typedef struct
 110                 {
 111                         uint8_t  Header;
 112                         uint8_t  Size;
 113                         uint16_t UUID[UUID_SIZE_BYTES];
 114                 } ClassUUID_t;
 115
 116         /* Inline Functions: */
 117                 static inline uint16_t* ServiceDiscovery_AddDataElementHeader(uint8_t** BufferPos, const uint8_t Type)
 118                 {
 119                         **BufferPos = (6 | Type);
 120                         *BufferPos += 1;
 121
 122                         uint16_t* SizePos = (uint16_t*)*BufferPos;
 123                         *SizePos = 0;
 124
 125                         **BufferPos += 2;
 126
 127                         return SizePos;
 128                 }
 129
 130                 static inline uint16_t ServiceDiscovery_Read16BitParameter(const void** AttributeHeader)
 131                 {
 132                         uint16_t ParamValue = *((uint16_t*)*AttributeHeader);
 133                         *AttributeHeader += sizeof(uint16_t);
 134                         return ParamValue;
 135                 }
 136
 137         /* Function Prototypes: */
 138                 void ServiceDiscovery_ProcessPacket(void* Data, Bluetooth_Channel_t* Channel);
 139
 140                 #if defined(INCLUDE_FROM_SERVICEDISCOVERYPROTOCOL_C)
 141                         static void ServiceDiscovery_ProcessServiceSearch(SDP_PDUHeader_t* SDPHeader, Bluetooth_Channel_t* Channel);
 142                         static void ServiceDiscovery_ProcessServiceAttribute(SDP_PDUHeader_t* SDPHeader, Bluetooth_Channel_t* Channel);
 143                         static void ServiceDiscovery_ProcessServiceSearchAttribute(SDP_PDUHeader_t* SDPHeader, Bluetooth_Channel_t* Channel);
 144
 145                         static void* ServiceDiscovery_GetAttributeValue(ServiceAttributeTable_t* AttributeTable, uint16_t AttributeID);
 146                         static ServiceAttributeTable_t* ServiceDiscovery_GetAttributeTable(uint8_t* UUID);
 147                         static uint8_t ServiceDiscovery_GetAttributeList(uint16_t AttributeList[][2], const void** CurrentParameter);
 148                         static uint8_t ServiceDiscovery_GetUUIDList(uint8_t UUIDList[][UUID_SIZE_BYTES], const void** CurrentParameter);
 149                         static uint32_t ServiceDiscovery_GetLocalAttributeSize(const void* AttributeData);
 150                         static uint32_t ServiceDiscovery_GetDataElementSize(const void** AttributeHeader, uint8_t* ElementHeaderSize);
 151                 #endif
 152
 153 #endif