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SDP Service improvements; fixed UUID for SDP service, added Service Discovery Server UUID, better documentation.

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This commit is contained in:
Dean Camera 2010-05-23 08:36:51 +00:00
parent a20a9086f7
commit 8cdb141eed
2 changed files with 142 additions and 58 deletions
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77
Demos/Host/Incomplete/BluetoothHost/Lib/ServiceDiscoveryProtocol.h
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@ -58,6 +58,7 @@
#define SDP_ATTRIBUTE_ID_SERVICECLASSIDS 0x0001
#define SDP_ATTRIBUTE_ID_LANGIDOFFSET 0x0006
#define SDP_ATTRIBUTE_ID_AVAILABILITY 0x0008
#define SDP_ATTRIBUTE_ID_VERSION 0x0200
#define SDP_ATTRIBUTE_ID_NAME (0x0000 + SDP_ATTRIBUTE_LANGOFFSET)
#define SDP_ATTRIBUTE_ID_DESCRIPTION (0x0001 + SDP_ATTRIBUTE_LANGOFFSET)
@ -74,44 +75,71 @@
#define SERVICE_ATTRIBUTE_TABLE_TERMINATOR {.Data = NULL}
/* Enums: */
/** Data sizes for SDP Data Element headers, to indicate the size of the data contained in the element. When creating
* a Data Element, a value from this enum should be ORed with a value from the \ref ServiceDiscovery_DataTypes_t enum.
*/
enum ServiceDiscovery_DataSizes_t
{
SDP_DATASIZE_8Bit = 0, /**< Contained data is 8 bits in length. */
SDP_DATASIZE_16Bit = 1, /**< Contained data is 16 bits in length. */
SDP_DATASIZE_32Bit = 2, /**< Contained data is 32 bits in length. */
SDP_DATASIZE_64Bit = 3, /**< Contained data is 64 bits in length. */
SDP_DATASIZE_128Bit = 4, /**< Contained data is 128 bits in length. */
SDP_DATASIZE_Variable8Bit = 5, /**< Contained data is encoded in an 8 bit size integer following the header. */
SDP_DATASIZE_Variable16Bit = 6, /**< Contained data is encoded in an 16 bit size integer following the header. */
SDP_DATASIZE_Variable32Bit = 7, /**< Contained data is encoded in an 32 bit size integer following the header. */
};
/** Data types for SDP Data Element headers, to indicate the type of data contained in the element. When creating
* a Data Element, a value from this enum should be ORed with a value from the \ref ServiceDiscovery_DataSizes_t enum.
*/
enum ServiceDiscovery_DataTypes_t
{
SDP_DATATYPE_Nill = (0 << 3),
SDP_DATATYPE_UnsignedInt = (1 << 3),
SDP_DATATYPE_SignedInt = (2 << 3),
SDP_DATATYPE_UUID = (3 << 3),
SDP_DATATYPE_String = (4 << 3),
SDP_DATATYPE_Boolean = (5 << 3),
SDP_DATATYPE_Sequence = (6 << 3),
SDP_DATATYPE_Alternative = (7 << 3),
SDP_DATATYPE_URL = (8 << 3),
SDP_DATATYPE_Nill = (0 << 3), /**< Indicates the container data is a Nill (null) type. */
SDP_DATATYPE_UnsignedInt = (1 << 3), /**< Indicates the container data is an unsigned integer. */
SDP_DATATYPE_SignedInt = (2 << 3), /**< Indicates the container data is a signed integer. */
SDP_DATATYPE_UUID = (3 << 3), /**< Indicates the container data is a UUID. */
SDP_DATATYPE_String = (4 << 3), /**< Indicates the container data is an ASCII string. */
SDP_DATATYPE_Boolean = (5 << 3), /**< Indicates the container data is a logical boolean. */
SDP_DATATYPE_Sequence = (6 << 3), /**< Indicates the container data is a sequence of containers. */
SDP_DATATYPE_Alternative = (7 << 3), /**< Indicates the container data is a sequence of alternative containers. */
SDP_DATATYPE_URL = (8 << 3), /**< Indicates the container data is a URL. */
};
/* Type Defines: */
/** Header for all SPD transaction packets. This header is sent at the start of all SDP packets sent to or from a SDP
* server.
*/
typedef struct
{
uint8_t PDU;
uint16_t TransactionID;
uint16_t ParameterLength;
uint8_t PDU; /**< SDP packet type, a SDP_PDU_* mask value */
uint16_t TransactionID; /**< Unique transaction ID number to associate requests and responses */
uint16_t ParameterLength; /**< Length of the data following the SDP header */
} SDP_PDUHeader_t;
/** Structure for the association of attribute ID values to an attribute value in FLASH. A table of these
* structures can then be built up for each supported UUID service within the device.
*/
typedef struct
{
uint16_t AttributeID;
const void* Data;
uint16_t AttributeID; /**< Attribute ID of the table element which the UUID service supports */
const void* Data; /**< Pointer to the attribute data, located in PROGMEM memory space */
} ServiceAttributeTable_t;
/** Structure for the association of service UUID values to attribute tables stored in FLASH. A table of these
* structures can then be built up for each supported UUID service within the device.
*/
typedef struct
{
uint8_t UUID[16];
const void* AttributeTable;
uint8_t UUID[UUID_SIZE_BYTES]; /**< UUID of a service supported by the device */
const void* AttributeTable; /**< Pointer to the UUID's attribute table, located in PROGMEM memory space */
} ServiceTable_t;
/** Structure for a list of Data Elements containing UUIDs, for service attributes requiring UUID lists. */
typedef struct
{
uint8_t Header;
uint8_t Size;
uint16_t UUID[UUID_SIZE_BYTES];
uint8_t Header; /**< Data Element header, should be (SDP_DATATYPE_Sequence | SDP_DATASIZE_Variable16Bit) */
uint16_t UUID[UUID_SIZE_BYTES]; /**< UUID to store in the list Data Element */
} ClassUUID_t;
/* Inline Functions: */
@ -128,9 +156,9 @@
*
* \return Pointer to the 16-bit size value of the contaner header, which has been pre-zeroed
*/
static inline uint16_t* SDP_AddDataElementHeader16(uint8_t** BufferPos, const uint8_t Type)
static inline uint16_t* SDP_AddDataElementHeader16(void** BufferPos, const uint8_t Type)
{
**BufferPos = (6 | Type);
*((uint8_t*)*BufferPos) = (SDP_DATASIZE_Variable16Bit | Type);
uint16_t* SizePos = (uint16_t*)*(BufferPos + 1);
*SizePos = 0;
@ -147,10 +175,11 @@
static void SDP_ProcessServiceAttribute(const SDP_PDUHeader_t* const SDPHeader, Bluetooth_Channel_t* const Channel);
static void SDP_ProcessServiceSearchAttribute(const SDP_PDUHeader_t* const SDPHeader, Bluetooth_Channel_t* const Channel);
static void* SDP_GetAttributeValue(const ServiceAttributeTable_t* AttributeTable, const uint16_t AttributeID);
static uint16_t SDP_AddAttributeToResponse(const uint16_t AttributeID, const void* AttributeValue, void** ResponseBuffer);
static void* SDP_GetAttributeValue(const ServiceAttributeTable_t* AttributeTable, const uint16_t AttributeID);
static ServiceAttributeTable_t* SDP_GetAttributeTable(const uint8_t* const UUID);
static uint8_t SDP_GetAttributeList(uint16_t AttributeList[][2], const void** const CurrentParameter);
static uint8_t SDP_GetUUIDList(uint8_t UUIDList[][UUID_SIZE_BYTES], const void** const CurrentParameter);
static uint8_t SDP_GetAttributeList(uint16_t AttributeList[][2], const void** const CurrentParameter);
static uint8_t SDP_GetUUIDList(uint8_t UUIDList[][UUID_SIZE_BYTES], const void** const CurrentParameter);
static uint32_t SDP_GetLocalAttributeContainerSize(const void* const AttributeData);
static uint32_t SDP_GetDataElementSize(const void** const AttributeHeader, uint8_t* const ElementHeaderSize);
#endif