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                 #define SDP_ATTRIBUTE_DESCRIPTION               0x0001
  59                 #define SDP_ATTRIBUTE_PROVIDER                  0x0002
  60                 #define SDP_ATTRIBUTE_AVAILABILITY              0x0008
  61
  62                 #define SDP_DATATYPE_NIL                        (0x00 << 3)
  63                 #define SDP_DATATYPE_UNSIGNED_INT               (0x01 << 3)
  64                 #define SDP_DATATYPE_SIGNED_INT                 (0x02 << 3)
  65                 #define SDP_DATATYPE_UUID                       (0x03 << 3)
  66                 #define SDP_DATATYPE_TEXT                       (0x04 << 3)
  67                 #define SDP_DATATYPE_BOOLEAN                    (0x05 << 3)
  68                 #define SDP_DATATYPE_ELEMENT_SEQUENCE           (0x06 << 3)
  69                 #define SDP_DATATYPE_ELEMENT_ALTERNATIVE        (0x07 << 3)
  70                 #define SDP_DATATYPE_URL                        (0x08 << 3)
  71
  72                 #define UUID_SIZE_BYTES                         16
  73                 #define BASE_96BIT_UUID                         0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00
  74
  75                 #define SERVICE_ATTRIBUTE_TEXT(name, string)    SERVICE_ATTRIBUTE_LEN8(name, SDP_DATATYPE_TEXT, sizeof(string), string)
  76                 #define SERVICE_ATTRIBUTE_LEN8(name, type, size, ...)  const ServiceAttributeData8Bit_t  name PROGMEM = \
  77                                                                 {.Header = (type | 5), .Size = size, .Data = __VA_ARGS__}
  78                 #define SERVICE_ATTRIBUTE_LEN16(name, type, size, ...) const ServiceAttributeData16Bit_t name PROGMEM = \
  79                                                                 {.Header = (type | 6), .Size = size, .Data = __VA_ARGS__}
  80                 #define SERVICE_ATTRIBUTE_LEN32(name, type, size, ...) const ServiceAttributeData32Bit_t name PROGMEM = \
  81                                                                 {.Header = (type | 7), .Size = size, .Data = __VA_ARGS__}
  82                 #define SERVICE_ATTRIBUTE_TABLE_TERMINATOR      {.Data = NULL}
  83
  84         /* Type Defines: */
  85                 typedef struct
  86                 {
  87                         uint8_t  PDU;
  88                         uint16_t TransactionID;
  89                         uint16_t ParameterLength;
  90                 } SDP_PDUHeader_t;
  91
  92                 typedef struct
  93                 {
  94                         uint16_t    AttributeID;
  95                         const void* Data;
  96                 } ServiceAttributeTable_t;
  97
  98                 typedef struct
  99                 {
 100                         uint8_t UUID[16];
 101                         const void* AttributeTable;
 102                 } ServiceTable_t;
 103
 104                 typedef struct
 105                 {
 106                         uint8_t  Header;
 107                         uint32_t Size;
 108                         uint8_t  Data[];
 109                 } ServiceAttributeData32Bit_t;
 110
 111                 typedef struct
 112                 {
 113                         uint8_t  Header;
 114                         uint16_t Size;
 115                         uint8_t  Data[];
 116                 } ServiceAttributeData16Bit_t;
 117
 118                 typedef struct
 119                 {
 120                         uint8_t Header;
 121                         uint8_t Size;
 122                         uint8_t Data[];
 123                 } ServiceAttributeData8Bit_t;
 124
 125                 typedef struct
 126                 {
 127                         uint8_t Header;
 128                         uint8_t Data[];
 129                 } ServiceAttributeData_t;
 130
 131         /* Function Prototypes: */
 132                 void ServiceDiscovery_ProcessPacket(void* Data, Bluetooth_Channel_t* Channel);
 133
 134                 #if defined(INCLUDE_FROM_SERVICEDISCOVERYPROTOCOL_C)
 135                         static void ServiceDiscovery_ProcessServiceSearch(SDP_PDUHeader_t* SDPHeader, Bluetooth_Channel_t* Channel);
 136                         static void ServiceDiscovery_ProcessServiceAttribute(SDP_PDUHeader_t* SDPHeader, Bluetooth_Channel_t* Channel);
 137                         static void ServiceDiscovery_ProcessServiceSearchAttribute(SDP_PDUHeader_t* SDPHeader, Bluetooth_Channel_t* Channel);
 138
 139                         static inline uint16_t ServiceDiscovery_Read16BitParameter(const void** AttributeHeader)
 140                         {
 141                                 uint16_t ParamValue = *((uint16_t*)*AttributeHeader);
 142                                 *AttributeHeader += sizeof(uint16_t);
 143                                 return ParamValue;
 144                         }
 145
 146                         static uint8_t ServiceDiscovery_ProcessAttributes(uint8_t UUIDList[][UUID_SIZE_BYTES], const uint8_t TotalUUIDs,
 147                                                                           uint8_t* ResponseBuffer, uint8_t MaxResponseSize,
 148                                                                           const void** CurrentParameter);
 149                         static uint8_t ServiceDiscovery_GetAttribute(uint8_t UUIDList[][UUID_SIZE_BYTES], const uint8_t TotalUUIDs,
 150                                                                      const uint32_t Attribute, uint8_t** DataBuffer, uint8_t BufferLen);
 151                         static uint8_t ServiceDiscovery_GetUUIDList(uint8_t UUIDList[][UUID_SIZE_BYTES], const void** CurrentParameter);
 152                         static uint32_t ServiceDiscovery_GetDataElementSize(const void** AttributeHeader, uint8_t* ElementHeaderSize);
 153                 #endif
 154
 155 #endif