Birkbeck College Mobile and Ubiquitous Computing IoT Lab Exercise 2
Dependencies: BLE_API_Native_blog
mbed/TARGET_NRF51822/ble_gattc.h
- Committer:
- gkroussos
- Date:
- 2015-03-07
- Revision:
- 0:e8fdba0ed044
File content as of revision 0:e8fdba0ed044:
/* Copyright (c) 2012 Nordic Semiconductor. All Rights Reserved. * * The information contained herein is confidential property of Nordic Semiconductor. The use, * copying, transfer or disclosure of such information is prohibited except by express written * agreement with Nordic Semiconductor. * */ /** @addtogroup BLE_GATTC Generic Attribute Profile (GATT) Client @{ @brief Definitions and prototypes for the GATT Client interface. */ #ifndef BLE_GATTC_H__ #define BLE_GATTC_H__ #include "ble_gatt.h" #include "ble_types.h" #include "ble_ranges.h" #include "nrf_svc.h" /**@brief GATTC API SVC numbers. */ enum BLE_GATTC_SVCS { SD_BLE_GATTC_PRIMARY_SERVICES_DISCOVER = BLE_GATTC_SVC_BASE, /**< Primary Service Discovery. */ SD_BLE_GATTC_RELATIONSHIPS_DISCOVER, /**< Relationship Discovery. */ SD_BLE_GATTC_CHARACTERISTICS_DISCOVER, /**< Characteristic Discovery. */ SD_BLE_GATTC_DESCRIPTORS_DISCOVER, /**< Characteristic Descriptor Discovery. */ SD_BLE_GATTC_CHAR_VALUE_BY_UUID_READ, /**< Read Characteristic Value by UUID. */ SD_BLE_GATTC_READ, /**< Generic read. */ SD_BLE_GATTC_CHAR_VALUES_READ, /**< Read multiple Characteristic Values. */ SD_BLE_GATTC_WRITE, /**< Generic write. */ SD_BLE_GATTC_HV_CONFIRM /**< Handle Value Confirmation. */ }; /** @addtogroup BLE_GATTC_DEFINES Defines * @{ */ /** @defgroup BLE_ERRORS_GATTC SVC return values specific to GATTC * @{ */ #define BLE_ERROR_GATTC_PROC_NOT_PERMITTED (NRF_GATTC_ERR_BASE + 0x000) /** @} */ /**@brief Last Attribute Handle. */ #define BLE_GATTC_HANDLE_END 0xFFFF /** @} */ /**@brief Operation Handle Range. */ typedef struct { uint16_t start_handle; /**< Start Handle. */ uint16_t end_handle; /**< End Handle. */ } ble_gattc_handle_range_t; /**@brief GATT service. */ typedef struct { ble_uuid_t uuid; /**< Service UUID. */ ble_gattc_handle_range_t handle_range; /**< Service Handle Range. */ } ble_gattc_service_t; /**@brief GATT include. */ typedef struct { uint16_t handle; /**< Include Handle. */ ble_gattc_service_t included_srvc; /**< Handle of the included service. */ } ble_gattc_include_t; /**@brief GATT characteristic. */ typedef struct { ble_uuid_t uuid; /**< Characteristic UUID. */ ble_gatt_char_props_t char_props; /**< Characteristic Properties. */ uint8_t char_ext_props : 1; /**< Extended properties present. */ uint16_t handle_decl; /**< Handle of the Characteristic Declaration. */ uint16_t handle_value; /**< Handle of the Characteristic Value. */ } ble_gattc_char_t; /**@brief GATT descriptor. */ typedef struct { uint16_t handle; /**< Descriptor Handle. */ ble_uuid_t uuid; /**< Descriptor UUID. */ } ble_gattc_desc_t; /**@brief Write Parameters. */ typedef struct { uint8_t write_op; /**< Write Operation to be performed, see BLE_GATT_WRITE_OPS. */ uint16_t handle; /**< Handle to the attribute to be written. */ uint16_t offset; /**< Offset in bytes. */ uint16_t len; /**< Length of data in bytes. */ uint8_t* p_value; /**< Pointer to the value data. */ uint8_t flags; /**< Flags, see @ref BLE_GATT_EXEC_WRITE_FLAGS. */ } ble_gattc_write_params_t; /** * @brief GATT Client Event IDs. */ enum BLE_GATTC_EVTS { BLE_GATTC_EVT_PRIM_SRVC_DISC_RSP = BLE_GATTC_EVT_BASE, /**< Primary Service Discovery Response event. */ BLE_GATTC_EVT_REL_DISC_RSP, /**< Relationship Discovery Response event. */ BLE_GATTC_EVT_CHAR_DISC_RSP, /**< Characteristic Discovery Response event. */ BLE_GATTC_EVT_DESC_DISC_RSP, /**< Descriptor Discovery Response event. */ BLE_GATTC_EVT_CHAR_VAL_BY_UUID_READ_RSP, /**< Read By UUID Response event. */ BLE_GATTC_EVT_READ_RSP, /**< Read Response event. */ BLE_GATTC_EVT_CHAR_VALS_READ_RSP, /**< Read multiple Response event. */ BLE_GATTC_EVT_WRITE_RSP, /**< Write Response event. */ BLE_GATTC_EVT_HVX, /**< Handle Value Notification or Indication event. */ BLE_GATTC_EVT_TIMEOUT /**< Timeout event. */ }; /**@brief Event structure for BLE_GATTC_EVT_PRIM_SRVC_DISC_RSP. */ typedef struct { uint16_t count; /**< Service count. */ ble_gattc_service_t services[1]; /**< Service data, variable length. */ } ble_gattc_evt_prim_srvc_disc_rsp_t; /**@brief Event structure for BLE_GATTC_EVT_REL_DISC_RSP. */ typedef struct { uint16_t count; /**< Include count. */ ble_gattc_include_t includes[1]; /**< Include data, variable length. */ } ble_gattc_evt_rel_disc_rsp_t; /**@brief Event structure for BLE_GATTC_EVT_CHAR_DISC_RSP. */ typedef struct { uint16_t count; /**< Characteristic count. */ ble_gattc_char_t chars[1]; /**< Characteristic data, variable length. */ } ble_gattc_evt_char_disc_rsp_t; /**@brief Event structure for BLE_GATTC_EVT_DESC_DISC_RSP. */ typedef struct { uint16_t count; /**< Descriptor count. */ ble_gattc_desc_t descs[1]; /**< Descriptor data, variable length. */ } ble_gattc_evt_desc_disc_rsp_t; /**@brief GATT read by UUID handle value pair. */ typedef struct { uint16_t handle; /**< Attribute Handle. */ uint8_t *p_value; /**< Pointer to value, variable length (length available as value_len in ble_gattc_evt_read_by_uuid_rsp_t). Please note that this pointer is absolute to the memory provided by the user when retrieving the event, so it will effectively point to a location inside the handle_value array. */ } ble_gattc_handle_value_t; /**@brief Event structure for BLE_GATTC_EVT_CHAR_VAL_BY_UUID_READ_RSP. */ typedef struct { uint16_t count; /**< Handle-Value Pair Count. */ uint16_t value_len; /**< Length of the value in Handle-Value(s) list. */ ble_gattc_handle_value_t handle_value[1]; /**< Handle-Value(s) list, variable length. */ } ble_gattc_evt_char_val_by_uuid_read_rsp_t; /**@brief Event structure for BLE_GATTC_EVT_READ_RSP. */ typedef struct { uint16_t handle; /**< Attribute Handle. */ uint16_t offset; /**< Offset of the attribute data. */ uint16_t len; /**< Attribute data length. */ uint8_t data[1]; /**< Attribute data, variable length. */ } ble_gattc_evt_read_rsp_t; /**@brief Event structure for BLE_GATTC_EVT_CHAR_VALS_READ_RSP. */ typedef struct { uint16_t len; /**< Concatenated Attribute values length. */ uint8_t values[1]; /**< Attribute values, variable length. */ } ble_gattc_evt_char_vals_read_rsp_t; /**@brief Event structure for BLE_GATTC_EVT_WRITE_RSP. */ typedef struct { uint16_t handle; /**< Attribute Handle. */ uint8_t write_op; /**< Type of write operation, see @ref BLE_GATT_WRITE_OPS. */ uint16_t offset; /**< Data Offset. */ uint16_t len; /**< Data length. */ uint8_t data[1]; /**< Data, variable length. */ } ble_gattc_evt_write_rsp_t; /**@brief Event structure for BLE_GATTC_EVT_HVX. */ typedef struct { uint16_t handle; /**< Handle to which the HVx operation applies. */ uint8_t type; /**< Indication or Notification, see @ref BLE_GATT_HVX_TYPES. */ uint16_t len; /**< Attribute data length. */ uint8_t data[1]; /**< Attribute data, variable length. */ } ble_gattc_evt_hvx_t; /**@brief Event structure for BLE_GATTC_EVT_TIMEOUT. */ typedef struct { uint8_t src; /**< Timeout source, see @ref BLE_GATT_TIMEOUT_SOURCES. */ } ble_gattc_evt_timeout_t; /**@brief GATTC event type. */ typedef struct { uint16_t conn_handle; /**< Connection Handle on which event occured. */ uint16_t gatt_status; /**< GATT status code for the operation, see @ref BLE_GATT_STATUS_CODES. */ uint16_t error_handle; /**< In case of error: The handle causing the error. In all other cases BLE_GATT_HANDLE_INVALID. */ union { ble_gattc_evt_prim_srvc_disc_rsp_t prim_srvc_disc_rsp; /**< Primary Service Discovery Response Event Parameters. */ ble_gattc_evt_rel_disc_rsp_t rel_disc_rsp; /**< Relationship Discovery Response Event Parameters. */ ble_gattc_evt_char_disc_rsp_t char_disc_rsp; /**< Characteristic Discovery Response Event Parameters. */ ble_gattc_evt_desc_disc_rsp_t desc_disc_rsp; /**< Descriptor Discovery Response Event Parameters. */ ble_gattc_evt_char_val_by_uuid_read_rsp_t char_val_by_uuid_read_rsp; /**< Characteristic Value Read by UUID Response Event Parameters. */ ble_gattc_evt_read_rsp_t read_rsp; /**< Read Response Event Parameters. */ ble_gattc_evt_char_vals_read_rsp_t char_vals_read_rsp; /**< Characteristic Values Read Response Event Parameters. */ ble_gattc_evt_write_rsp_t write_rsp; /**< Write Response Event Parameters. */ ble_gattc_evt_hvx_t hvx; /**< Handle Value Notification/Indication Event Parameters. */ ble_gattc_evt_timeout_t timeout; /**< Timeout Event Parameters. */ } params; /**< Event Parameters. @note Only valid if @ref gatt_status == BLE_GATT_STATUS_SUCCESS. */ } ble_gattc_evt_t; /**@brief Initiate or continue a GATT Primary Service Discovery procedure. * * @details This function initiates a Primary Service discovery, starting from the supplied handle. * If the last service has not been reached, this must be called again with an updated start handle value to continue the search. * * @note If any of the discovered services have 128-bit UUIDs which are not present in the table provided to ble_vs_uuids_assign, a UUID structure with * type BLE_UUID_TYPE_UNKNOWN will be received in the corresponding event. * * @param[in] conn_handle The connection handle identifying the connection to perform this procedure on. * @param[in] start_handle Handle to start searching from. * @param[in] p_srvc_uuid Pointer to the service UUID to be found. If it is NULL, all primary services will be returned. * * @return @ref NRF_SUCCESS Successfully started or resumed the Primary Service Discovery procedure. * @return @ref BLE_ERROR_INVALID_CONN_HANDLE Invalid Connection Handle. * @return @ref NRF_ERROR_INVALID_PARAM Invalid parameter(s) supplied. * @return @ref NRF_ERROR_BUSY Client procedure already in progress. */ SVCALL(SD_BLE_GATTC_PRIMARY_SERVICES_DISCOVER, uint32_t, sd_ble_gattc_primary_services_discover(uint16_t conn_handle, uint16_t start_handle, ble_uuid_t const * const p_srvc_uuid)); /**@brief Initiate or continue a GATT Relationship Discovery procedure. * * @details This function initiates the Find Included Services sub-procedure. If the last included service has not been reached, * this must be called again with an updated handle range to continue the search. * * @param[in] conn_handle The connection handle identifying the connection to perform this procedure on. * @param[in] p_handle_range A pointer to the range of handles of the Service to perform this procedure on. * * @return @ref NRF_SUCCESS Successfully started or resumed the Relationship Discovery procedure. * @return @ref BLE_ERROR_INVALID_CONN_HANDLE Invalid Connection Handle. * @return @ref NRF_ERROR_INVALID_ADDR Invalid pointer supplied. * @return @ref NRF_ERROR_INVALID_PARAM Invalid parameter(s) supplied. * @return @ref NRF_ERROR_BUSY Client procedure already in progress. */ SVCALL(SD_BLE_GATTC_RELATIONSHIPS_DISCOVER, uint32_t, sd_ble_gattc_relationships_discover(uint16_t conn_handle, ble_gattc_handle_range_t const * const p_handle_range)); /**@brief Initiate or continue a GATT Characteristic Discovery procedure. * * @details This function initiates a Characteristic discovery procedure. If the last Characteristic has not been reached, * this must be called again with an updated handle range to continue the discovery. * * @note If any of the discovered characteristics have 128-bit UUIDs which are not present in the table provided to ble_vs_uuids_assign, a UUID structure with * type BLE_UUID_TYPE_UNKNOWN will be received in the corresponding event. * * @param[in] conn_handle The connection handle identifying the connection to perform this procedure on. * @param[in] p_handle_range A pointer to the range of handles of the Service to perform this procedure on. * * @return @ref NRF_SUCCESS Successfully started or resumed the Characteristic Discovery procedure. * @return @ref BLE_ERROR_INVALID_CONN_HANDLE Invalid Connection Handle. * @return @ref NRF_ERROR_INVALID_ADDR Invalid pointer supplied. * @return @ref NRF_ERROR_BUSY Client procedure already in progress. */ SVCALL(SD_BLE_GATTC_CHARACTERISTICS_DISCOVER, uint32_t, sd_ble_gattc_characteristics_discover(uint16_t conn_handle, ble_gattc_handle_range_t const * const p_handle_range)); /**@brief Initiate or continue a GATT Characteristic Descriptor Discovery procedure. * * @details This function initiates the Characteristic Descriptor discovery procedure. If the last Descriptor has not been reached, * this must be called again with an updated handle range to continue the discovery. * * @param[in] conn_handle The connection handle identifying the connection to perform this procedure on. * @param[in] p_handle_range A pointer to the range of handles of the Characteristic to perform this procedure on. * * @return @ref NRF_SUCCESS Successfully started or resumed the Descriptor Discovery procedure. * @return @ref BLE_ERROR_INVALID_CONN_HANDLE Invalid Connection Handle. * @return @ref NRF_ERROR_INVALID_ADDR Invalid pointer supplied. * @return @ref NRF_ERROR_BUSY Client procedure already in progress. */ SVCALL(SD_BLE_GATTC_DESCRIPTORS_DISCOVER, uint32_t, sd_ble_gattc_descriptors_discover(uint16_t conn_handle, ble_gattc_handle_range_t const * const p_handle_range)); /**@brief Initiate or continue a GATT Read using Characteristic UUID procedure. * * @details This function initiates the Read using Characteristic UUID procedure. If the last Characteristic has not been reached, * this must be called again with an updated handle range to continue the discovery. * * @param[in] conn_handle The connection handle identifying the connection to perform this procedure on. * @param[in] p_uuid Pointer to a Characteristic value UUID to read. * @param[in] p_handle_range A pointer to the range of handles to perform this procedure on. * * @return @ref NRF_SUCCESS Successfully started or resumed the Read using Characteristic UUID procedure. * @return @ref BLE_ERROR_INVALID_CONN_HANDLE Invalid Connection Handle. * @return @ref NRF_ERROR_INVALID_ADDR Invalid pointer supplied. * @return @ref NRF_ERROR_BUSY Client procedure already in progress. */ SVCALL(SD_BLE_GATTC_CHAR_VALUE_BY_UUID_READ, uint32_t, sd_ble_gattc_char_value_by_uuid_read(uint16_t conn_handle, ble_uuid_t const * const p_uuid, ble_gattc_handle_range_t const * const p_handle_range)); /**@brief Initiate or continue a GATT Read (Long) Characteristic or Descriptor procedure. * * @details This function initiates a GATT Read (Long) Characteristic or Descriptor procedure. If the Characteristic or Descriptor * to be read is longer than GATT_MTU - 1, this function must be called multiple times with appropriate offset to read the * complete value. * * @param[in] conn_handle The connection handle identifying the connection to perform this procedure on. * @param[in] handle The handle of the attribute to be read. * @param[in] offset Offset into the attribute value to be read. * * @return @ref NRF_SUCCESS Successfully started or resumed the Read (Long) procedure. * @return @ref BLE_ERROR_INVALID_CONN_HANDLE Invalid Connection Handle. * @return @ref NRF_ERROR_INVALID_ADDR Invalid pointer supplied. * @return @ref NRF_ERROR_BUSY Client procedure already in progress. */ SVCALL(SD_BLE_GATTC_READ, uint32_t, sd_ble_gattc_read(uint16_t conn_handle, uint16_t handle, uint16_t offset)); /**@brief Initiate a GATT Read Multiple Characteristic Values procedure. * * @details This function initiates a GATT Read Multiple Characteristic Values procedure. * * @param[in] conn_handle The connection handle identifying the connection to perform this procedure on. * @param[in] p_handles A pointer to the handle(s) of the attribute(s) to be read. * @param[in] handle_count The number of handles in p_handles. * * @return @ref NRF_SUCCESS Successfully started the Read Multiple Characteristic Values procedure. * @return @ref BLE_ERROR_INVALID_CONN_HANDLE Invalid Connection Handle. * @return @ref NRF_ERROR_INVALID_ADDR Invalid pointer supplied. * @return @ref NRF_ERROR_BUSY Client procedure already in progress. */ SVCALL(SD_BLE_GATTC_CHAR_VALUES_READ, uint32_t, sd_ble_gattc_char_values_read(uint16_t conn_handle, uint16_t const * const p_handles, uint16_t handle_count)); /**@brief Perform a Write (Characteristic Value or Descriptor, with or without response, signed or not, long or reliable) procedure. * * @details This function can perform all write procedures described in GATT. * * @note It is important to note that a write without response will <b>consume an application buffer</b>, and will therefore * generate a @ref BLE_EVT_TX_COMPLETE event when the packet has been transmitted. A write on the other hand will use the * standard client internal buffer and thus will only generate a @ref BLE_GATTC_EVT_WRITE_RSP event as soon as the write response * has been received from the peer. Please see the documentation of @ref sd_ble_tx_buffer_count_get for more details. * * @param[in] conn_handle The connection handle identifying the connection to perform this procedure on. * @param[in] p_write_params A pointer to a write parameters structure. * * @return @ref NRF_SUCCESS Successfully started the Write procedure. * @return @ref BLE_ERROR_INVALID_CONN_HANDLE Invalid Connection Handle. * @return @ref NRF_ERROR_INVALID_ADDR Invalid pointer supplied. * @return @ref NRF_ERROR_INVALID_PARAM Invalid parameter(s) supplied. * @return @ref NRF_ERROR_DATA_SIZE Invalid data size(s) supplied. * @return @ref NRF_ERROR_BUSY Procedure already in progress. * @return @ref BLE_ERROR_NO_TX_BUFFERS There are no available buffers left. */ SVCALL(SD_BLE_GATTC_WRITE, uint32_t, sd_ble_gattc_write(uint16_t conn_handle, ble_gattc_write_params_t const * const p_write_params)); /**@brief Send a Handle Value Confirmation to the GATT Server. * * @param[in] conn_handle The connection handle identifying the connection to perform this procedure on. * @param[in] handle The handle of the attribute in the indication. * * @return @ref NRF_SUCCESS Successfully queued the Handle Value Confirmation for transmission. * @return @ref BLE_ERROR_INVALID_CONN_HANDLE Invalid Connection Handle. * @return @ref NRF_ERROR_INVALID_STATE No Indication pending to be confirmed. * @return @ref BLE_ERROR_INVALID_ATTR_HANDLE Invalid attribute handle. * @return @ref BLE_ERROR_NO_TX_BUFFERS There are no available buffers left. */ SVCALL(SD_BLE_GATTC_HV_CONFIRM, uint32_t, sd_ble_gattc_hv_confirm(uint16_t conn_handle, uint16_t handle)); #endif /* BLE_GATTC_H__ */ /** @} @} */