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Begin processing code for Service Discovery Protocol attributes.

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This commit is contained in:
Dean Camera 2010-05-17 23:36:05 +00:00
parent ff61dfa505
commit f13bc35a19
6 changed files with 94 additions and 46 deletions
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112
Demos/Host/Incomplete/BluetoothHost/Lib/ServiceDiscoveryProtocol.c
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@ -31,25 +31,25 @@
#define INCLUDE_FROM_SERVICEDISCOVERYPROTOCOL_C
#include "ServiceDiscoveryProtocol.h"
SERVICE_ATTRIBUTE_TEXT(SDP_Attribute_Name, "SDP");
SERVICE_ATTRIBUTE_TEXT(SDP_Attribute_Description, "BT Service Discovery");
SERVICE_ATTRIBUTE_8BIT_LEN(SDP_Attribute_Availability, SDP_DATATYPE_UNSIGNED_INT, 1, {0xFF});
SERVICE_ATTRIBUTE_TEXT(SDP_Attribute_Name, "SDP");
SERVICE_ATTRIBUTE_TEXT(SDP_Attribute_Description, "BT Service Discovery");
SERVICE_ATTRIBUTE_LEN8(SDP_Attribute_Availability, SDP_DATATYPE_UNSIGNED_INT, 1, {0xFF});
const ServiceAttributeTable_t SDP_Attribute_Table[] PROGMEM =
{
{.AttributeID = SDP_ATTRIBUTE_NAME , .AttributeData = &SDP_Attribute_Name},
{.AttributeID = SDP_ATTRIBUTE_DESCRIPTION , .AttributeData = &SDP_Attribute_Description},
{.AttributeID = SDP_ATTRIBUTE_AVAILABILITY, .AttributeData = &SDP_Attribute_Availability},
{.ID = SDP_ATTRIBUTE_NAME , .Data = &SDP_Attribute_Name},
{.ID = SDP_ATTRIBUTE_DESCRIPTION , .Data = &SDP_Attribute_Description},
{.ID = SDP_ATTRIBUTE_AVAILABILITY, .Data = &SDP_Attribute_Availability},
SERVICE_ATTRIBUTE_TABLE_TERMINATOR
};
SERVICE_ATTRIBUTE_TEXT(RFCOMM_Attribute_Name, "RFCOMM");
SERVICE_ATTRIBUTE_TEXT(RFCOMM_Attribute_Description, "Virtual Serial");
SERVICE_ATTRIBUTE_8BIT_LEN(RFCOMM_Attribute_Availability, SDP_DATATYPE_UNSIGNED_INT, 1, {0xFF});
SERVICE_ATTRIBUTE_TEXT(RFCOMM_Attribute_Name, "RFCOMM");
SERVICE_ATTRIBUTE_TEXT(RFCOMM_Attribute_Description, "Virtual Serial");
SERVICE_ATTRIBUTE_LEN8(RFCOMM_Attribute_Availability, SDP_DATATYPE_UNSIGNED_INT, 1, {0xFF});
const ServiceAttributeTable_t RFCOMM_Attribute_Table[] PROGMEM =
{
{.AttributeID = SDP_ATTRIBUTE_NAME , .AttributeData = &RFCOMM_Attribute_Name},
{.AttributeID = SDP_ATTRIBUTE_DESCRIPTION , .AttributeData = &RFCOMM_Attribute_Description},
{.AttributeID = SDP_ATTRIBUTE_AVAILABILITY, .AttributeData = &RFCOMM_Attribute_Availability},
{.ID = SDP_ATTRIBUTE_NAME , .Data = &RFCOMM_Attribute_Name},
{.ID = SDP_ATTRIBUTE_DESCRIPTION , .Data = &RFCOMM_Attribute_Description},
{.ID = SDP_ATTRIBUTE_AVAILABILITY, .Data = &RFCOMM_Attribute_Availability},
SERVICE_ATTRIBUTE_TABLE_TERMINATOR
};
@ -106,8 +106,6 @@ static void ServiceDiscovery_ProcessServiceSearchAttribute(SDP_PDUHeader_t* SDPH
const void* CurrentParameter = ((void*)SDPHeader + sizeof(SDP_PDUHeader_t));
BT_SDP_DEBUG(1, "<< Service Search Attribute");
uint8_t ElementHeaderSize;
uint8_t UUIDList[12][16];
uint8_t TotalUUIDs = ServiceDiscovery_GetUUIDList(UUIDList, &CurrentParameter);
@ -116,21 +114,6 @@ static void ServiceDiscovery_ProcessServiceSearchAttribute(SDP_PDUHeader_t* SDPH
uint16_t MaxAttributeSize = ServiceDiscovery_Read16BitParameter(&CurrentParameter);
BT_SDP_DEBUG(2, "-- Max Return Attribute Bytes: 0x%04X", MaxAttributeSize);
uint16_t AttributeIDListLength = ServiceDiscovery_GetDataElementSize(&CurrentParameter, &ElementHeaderSize);
BT_SDP_DEBUG(2, "-- Total Attribute Length: 0x%04X", AttributeIDListLength);
while (AttributeIDListLength)
{
uint8_t AttributeLength = ServiceDiscovery_GetDataElementSize(&CurrentParameter, &ElementHeaderSize);
uint32_t Attribute = 0;
memcpy(&Attribute, CurrentParameter, AttributeLength);
BT_SDP_DEBUG(2, "-- Attribute(%d): 0x%08lX", AttributeLength, Attribute);
AttributeIDListLength -= (AttributeLength + ElementHeaderSize);
CurrentParameter += AttributeLength;
}
struct
{
SDP_PDUHeader_t SDPHeader;
@ -140,10 +123,68 @@ static void ServiceDiscovery_ProcessServiceSearchAttribute(SDP_PDUHeader_t* SDPH
ResponsePacket.SDPHeader.PDU = SDP_PDU_SERVICESEARCHATTRIBUTERESPONSE;
ResponsePacket.SDPHeader.TransactionID = SDPHeader->TransactionID;
if (MaxAttributeSize > sizeof(ResponsePacket.ResponseData))
MaxAttributeSize = sizeof(ResponsePacket.ResponseData);
ResponsePacket.SDPHeader.ParameterLength = ServiceDiscovery_ProcessAttributes(UUIDList, TotalUUIDs,
ResponsePacket.ResponseData,
MaxAttributeSize, &CurrentParameter);
Bluetooth_SendPacket(&ResponsePacket, (sizeof(ResponsePacket.SDPHeader) + ResponsePacket.SDPHeader.ParameterLength),
Channel);
}
static uint8_t ServiceDiscovery_ProcessAttributes(uint8_t UUIDList[12][16], const uint8_t TotalUUIDs, uint8_t* ResponseBuffer,
uint8_t MaxResponseSize, const void** CurrentParameter)
{
uint8_t ElementHeaderSize;
uint8_t TotalResponseSize = 0;
uint16_t AttributeIDListLength = ServiceDiscovery_GetDataElementSize(CurrentParameter, &ElementHeaderSize);
BT_SDP_DEBUG(2, "-- Total Attribute Length: 0x%04X", AttributeIDListLength);
while (AttributeIDListLength)
{
uint8_t AttributeLength = ServiceDiscovery_GetDataElementSize(CurrentParameter, &ElementHeaderSize);
uint32_t Attribute = 0;
memcpy(&Attribute, CurrentParameter, AttributeLength);
BT_SDP_DEBUG(2, "-- Attribute(%d): 0x%08lX", AttributeLength, Attribute);
uint8_t TotalBytesAdded = ServiceDiscovery_GetAttribute(UUIDList, TotalUUIDs, Attribute, &ResponseBuffer,
MaxResponseSize);
TotalResponseSize += TotalBytesAdded;
MaxResponseSize -= TotalBytesAdded;
AttributeIDListLength -= (AttributeLength + ElementHeaderSize);
CurrentParameter += AttributeLength;
}
return TotalResponseSize;
}
static uint8_t ServiceDiscovery_GetAttribute(uint8_t UUIDList[12][16], const uint8_t TotalUUIDs, const uint32_t Attribute,
uint8_t** DataBuffer, uint8_t BufferLen)
{
for (uint8_t CurrTableItem = 0; CurrTableItem < (sizeof(SDP_Services_Table) / sizeof(ServiceTable_t)); CurrTableItem++)
{
for (uint8_t CurrUUIDIndex = 0; CurrUUIDIndex < TotalUUIDs; CurrUUIDIndex++)
{
if (!(memcmp(SDP_Services_Table[CurrTableItem].UUID, UUIDList[CurrUUIDIndex], sizeof(BaseUUID))))
{
const ServiceAttributeTable_t* AttributeTable = SDP_Services_Table[CurrTableItem].AttributeTable;
// Process attribute table
BT_SDP_DEBUG(2, "FOUND UUID IN TABLE");
break;
}
}
}
return 0;
}
static uint8_t ServiceDiscovery_GetUUIDList(uint8_t UUIDList[12][16], const void** CurrentParameter)
{
uint8_t ElementHeaderSize;
@ -154,15 +195,10 @@ static uint8_t ServiceDiscovery_GetUUIDList(uint8_t UUIDList[12][16], const void
while (ServicePatternLength)
{
uint8_t* CurrentUUID = UUIDList[TotalUUIDs++];
uint8_t UUIDLength = ServiceDiscovery_GetDataElementSize(CurrentParameter, &ElementHeaderSize);
uint8_t UUIDLength = ServiceDiscovery_GetDataElementSize(CurrentParameter, &ElementHeaderSize);
memcpy(CurrentUUID, BaseUUID, sizeof(BaseUUID));
if (UUIDLength <= 32)
memcpy(&CurrentUUID[sizeof(BaseUUID) - sizeof(uint32_t)], *CurrentParameter, UUIDLength);
else
memcpy(CurrentUUID, *CurrentParameter, UUIDLength);
memcpy(&CurrentUUID[(UUIDLength <= 32) ? (sizeof(BaseUUID) - 32) : 0], *CurrentParameter, UUIDLength);
BT_SDP_DEBUG(2, "-- UUID (%d): 0x%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
UUIDLength,
@ -180,11 +216,13 @@ static uint8_t ServiceDiscovery_GetUUIDList(uint8_t UUIDList[12][16], const void
static uint32_t ServiceDiscovery_GetDataElementSize(const void** DataElementHeader, uint8_t* ElementHeaderSize)
{
/* Fetch the size of the Data Element structure from the header, increment the current buffer pos */
uint8_t SizeIndex = (*((uint8_t*)*DataElementHeader) & 0x07);
*DataElementHeader += sizeof(uint8_t);
uint32_t ElementValue;
/* Convert the Data Element size index into a size in bytes */
switch (SizeIndex)
{
case 5: