#define SDP_PDU_SERVICEATTRIBUTERESPONSE 0x05
#define SDP_PDU_SERVICESEARCHATTRIBUTEREQUEST 0x06
#define SDP_PDU_SERVICESEARCHATTRIBUTERESPONSE 0x07
+
+ #define SDP_ATTRIBUTE_ID_SERVICERECORDHANDLE 0x0000
+ #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_NAME 0x0000
- #define SDP_ATTRIBUTE_DESCRIPTION 0x0001
- #define SDP_ATTRIBUTE_PROVIDER 0x0002
- #define SDP_ATTRIBUTE_AVAILABILITY 0x0008
-
- #define SDP_DATATYPE_NIL (0x00 << 3)
- #define SDP_DATATYPE_UNSIGNED_INT (0x01 << 3)
- #define SDP_DATATYPE_SIGNED_INT (0x02 << 3)
- #define SDP_DATATYPE_UUID (0x03 << 3)
- #define SDP_DATATYPE_TEXT (0x04 << 3)
- #define SDP_DATATYPE_BOOLEAN (0x05 << 3)
- #define SDP_DATATYPE_ELEMENT_SEQUENCE (0x06 << 3)
- #define SDP_DATATYPE_ELEMENT_ALTERNATIVE (0x07 << 3)
- #define SDP_DATATYPE_URL (0x08 << 3)
+ /** Size of a full 128 bit UUID, in bytes. */
+ #define UUID_SIZE_BYTES 16
+ /** First 96 bits common to all standadized Bluetooth services. */
#define BASE_96BIT_UUID 0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00
- #define SERVICE_ATTRIBUTE_TEXT(name, string) SERVICE_ATTRIBUTE_8BIT_LEN(name, SDP_DATATYPE_TEXT, sizeof(string), string)
- #define SERVICE_ATTRIBUTE_8BIT_LEN(name, type, size, ...) const ServiceAttributeData8Bit_t name PROGMEM = \
- {.Header = (type | 5), .Size = size, .Data = __VA_ARGS__}
- #define SERVICE_ATTRIBUTE_16BIT_LEN(name, type, size, ...) const ServiceAttributeData16Bit_t name PROGMEM = \
- {.Header = (type | 5), .Size = size, .Data = __VA_ARGS__}
- #define SERVICE_ATTRIBUTE_32BIT_LEN(name, type, size, ...) const ServiceAttributeData32Bit_t name PROGMEM = \
- {.Header = (type | 5), .Size = size, .Data = __VA_ARGS__}
- #define SERVICE_ATTRIBUTE_TABLE_TERMINATOR {.AttributeData = NULL}
+ /** Terminator for a service attribute table of type \ref ServiceAttributeTable_t. */
+ #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), /**< 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* AttributeData;
+ 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;
- uint32_t Size;
- uint8_t Data[];
- } ServiceAttributeData32Bit_t;
+ uint8_t Header; /**< Data Element header, should be (SDP_DATATYPE_UUID | SDP_DATASIZE_128Bit) */
+ uint8_t UUID[UUID_SIZE_BYTES]; /**< UUID to store in the list Data Element */
+ } ClassUUID_t;
+ /** Structure for a list of Data Elements containing Version Numbers, for service attributes requiring Version lists. */
typedef struct
{
- uint8_t Header;
- uint16_t Size;
- uint8_t Data[];
- } ServiceAttributeData16Bit_t;
-
- typedef struct
+ uint8_t Header; /**< Data Element header, should be (SDP_DATATYPE_UnsignedInt | SDP_DATASIZE_16Bit) */
+ uint16_t Version; /**< Version number to store in the list Data Element */
+ } Version_t;
+
+ /* Inline Functions: */
+ /** Adds a new Data Element container of the given type with a 16-bit size header to the buffer. The
+ * buffer pointer's position is advanced past the added header once the element has been added. The
+ * returned size header value is pre-zeroed out so that it can be incremented as data is placed into
+ * the Data Element container.
+ *
+ * The total added size of the container header is three bytes, regardless of the size of its contents
+ * as long as the contents' size in bytes fits into a 16-bit integer.
+ *
+ * \param[in, out] BufferPos Pointer to a buffer where the container header is to be placed
+ * \param[in] Type Type of data the container is to store, a value from the \ref ServiceDiscovery_DataTypes_t enum
+ *
+ * \return Pointer to the 16-bit size value of the contaner header, which has been pre-zeroed
+ */
+ static inline uint16_t* SDP_AddDataElementHeader16(void** BufferPos, const uint8_t Type)
{
- uint8_t Header;
- uint8_t Size;
- uint8_t Data[];
- } ServiceAttributeData8Bit_t;
+ *((uint8_t*)*BufferPos) = (SDP_DATASIZE_Variable16Bit | Type);
- typedef struct
- {
- uint8_t Header;
- uint8_t Data[];
- } ServiceAttributeData_t;
+ uint16_t* SizePos = (uint16_t*)*(BufferPos + 1);
+ *SizePos = 0;
+
+ *BufferPos += 3;
+ return SizePos;
+ }
/* Function Prototypes: */
- void ServiceDiscovery_ProcessPacket(void* Data, Bluetooth_Channel_t* Channel);
+ void SDP_ProcessPacket(void* Data, Bluetooth_Channel_t* Channel);
#if defined(INCLUDE_FROM_SERVICEDISCOVERYPROTOCOL_C)
- static void ServiceDiscovery_ProcessServiceSearch(SDP_PDUHeader_t* SDPHeader);
- static void ServiceDiscovery_ProcessServiceAttribute(SDP_PDUHeader_t* SDPHeader);
- static void ServiceDiscovery_ProcessServiceSearchAttribute(SDP_PDUHeader_t* SDPHeader);
-
- static inline uint16_t ServiceDiscovery_Read16BitParameter(void** AttributeHeader)
- {
- uint16_t ParamValue = *((uint16_t*)*AttributeHeader);
- *AttributeHeader += sizeof(uint16_t);
- return ParamValue;
- }
-
- static uint32_t ServiceDiscovery_GetDataElementSize(void** AttributeHeader, uint8_t* ElementHeaderSize);
+ static void SDP_ProcessServiceSearch(const SDP_PDUHeader_t* const SDPHeader, Bluetooth_Channel_t* const Channel);
+ 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 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 uint32_t SDP_GetLocalAttributeContainerSize(const void* const AttributeData, uint8_t* const HeaderSize);
+ static uint32_t SDP_GetDataElementSize(const void** const AttributeHeader, uint8_t* const ElementHeaderSize);
#endif
#endif
projects / pub / USBasp.git / blobdiff