/** * Copyright (c) 2015 - 2020, Nordic Semiconductor ASA * * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. Redistributions in binary form, except as embedded into a Nordic * Semiconductor ASA integrated circuit in a product or a software update for * such product, must reproduce the above copyright notice, this list of * conditions and the following disclaimer in the documentation and/or other * materials provided with the distribution. * * 3. Neither the name of Nordic Semiconductor ASA nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * * 4. This software, with or without modification, must only be used with a * Nordic Semiconductor ASA integrated circuit. * * 5. Any software provided in binary form under this license must not be reverse * engineered, decompiled, modified and/or disassembled. * * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ /** @file * * @defgroup ble_lns Location and Navigation Service * @{ * @ingroup ble_sdk_srv * @brief Location and Navigation Service module. * * @details This module implements the Location and Navigation Service with the Location and Speed, Position * Quality, Feature, Control Point, and Navigation characteristics. * * If an event handler is supplied by the application, the Location and Navigation Service will * generate Location and Navigation Service events to the application. * * @note The application must register this module as BLE event observer using the * NRF_SDH_BLE_OBSERVER macro. Example: * @code * ble_lns_t instance; * NRF_SDH_BLE_OBSERVER(anything, BLE_LNS_BLE_OBSERVER_PRIO, * ble_lns_on_ble_evt, &instance); * @endcode */ #ifndef BLE_LNS_H__ #define BLE_LNS_H__ #include "ble_srv_common.h" #include "ble_date_time.h" #include "ble_ln_common.h" #include "ble_ln_cp.h" #include "sdk_common.h" #include "nrf_sdh_ble.h" #include "nrf_ble_gq.h" #ifdef __cplusplus extern "C" { #endif /**@ Macro for defining a ble_lns instance. * * @param _name Name of the instance. * @hideinitializer */ #define BLE_LNS_DEF(_name) \ static ble_lns_t _name; \ NRF_SDH_BLE_OBSERVER(_name ## _obs, \ BLE_LNS_BLE_OBSERVER_PRIO, \ ble_lns_on_ble_evt, &_name) /**@brief Location and Navigation event type. This list defines the possible events types from the Location and Navigation Service. */ typedef enum { BLE_LNS_CTRLPT_EVT_INDICATION_ENABLED, /**< Control Point value indication was enabled. */ BLE_LNS_CTRLPT_EVT_INDICATION_DISABLED, /**< Control Point value indication was disabled. */ BLE_LNS_LOC_SPEED_EVT_NOTIFICATION_ENABLED, /**< Location and Speed value notification was enabled. */ BLE_LNS_LOC_SPEED_EVT_NOTIFICATION_DISABLED, /**< Location and Speed value notification was disabled. */ BLE_LNS_NAVIGATION_EVT_NOTIFICATION_ENABLED, /**< Navigation value notification was enabled. */ BLE_LNS_NAVIGATION_EVT_NOTIFICATION_DISABLED, /**< Navigation value notification was disabled. */ } ble_lns_evt_type_t; /**@brief Location and Navigation event structure. When an event occurs, the data structures of the module are automatically updated. */ typedef struct { ble_lns_evt_type_t evt_type; } ble_lns_evt_t; // Forward declarations of the ble_lns types. typedef struct ble_lns_init_s ble_lns_init_t; typedef struct ble_lns_s ble_lns_t; typedef struct ble_lns_loc_speed_s ble_lns_loc_speed_t; typedef struct ble_lns_pos_quality_s ble_lns_pos_quality_t; typedef struct ble_lns_navigation_s ble_lns_navigation_t; typedef struct { bool is_pending; uint16_t handle; uint16_t len; uint8_t data[BLE_GATT_ATT_MTU_DEFAULT]; } notification_t; /**@brief Location and Navigation Service event handler type. */ typedef void (*ble_lns_evt_handler_t) (ble_lns_t const * p_lns, ble_lns_evt_t const * p_evt); /**@brief Location and Navigation Service init structure. This structure contains all options * and data needed to initialize the service. */ struct ble_lns_init_s { ble_lns_evt_handler_t evt_handler; /**< Event handler to be called for handling events in the Location and Navigation Service. */ ble_lncp_evt_handler_t lncp_evt_handler; ble_srv_error_handler_t error_handler; /**< Errors will be sent back to this function. */ nrf_ble_gq_t * p_gatt_queue; /**< Pointer to BLE GATT queue instance. */ bool is_position_quality_present; /**< If set to true, the position quality characteristic will be added. Else not. */ bool is_control_point_present; /**< If set to true, the control point characteristic will be added. Else not. */ bool is_navigation_present; /**< If set to true, the navigation characteristic will be added. Else not. */ security_req_t loc_nav_feature_security_req_read_perm; /**< Read security level of the LN Feature characteristic. */ security_req_t loc_speed_security_req_cccd_write_perm; /**< CCCD write security level of the Write Location and Speed characteristic. */ security_req_t position_quality_security_req_read_perm; /**< Read security level of the Position Quality characteristic. */ security_req_t navigation_security_req_cccd_write_perm; /**< CCCD write security level of the Navigation characteristic. */ security_req_t ctrl_point_security_req_write_perm; /**< Read security level of the LN Control Point characteristic. */ security_req_t ctrl_point_security_req_cccd_write_perm; /**< CCCD write security level of the LN Control Point characteristic. */ uint32_t available_features; /**< Value of the LN feature. */ ble_lns_loc_speed_t * p_location_speed; /**< Initial Location and Speed. */ ble_lns_pos_quality_t * p_position_quality; /**< Initial Position Quality. */ ble_lns_navigation_t * p_navigation; /**< Initial Navigation data structure. */ }; /**@brief Definition of a navigation route.*/ typedef struct { uint16_t route_id; uint8_t route_name[BLE_LNS_MAX_ROUTE_NAME_LEN]; } ble_lns_route_t; /**@brief Location and Navigation Service structure. This structure contains various status information for the service. */ struct ble_lns_s { ble_lns_evt_handler_t evt_handler; /**< Event handler to be called for handling events in the Location and Navigation Service. */ ble_srv_error_handler_t error_handler; /**< Error handler. */ nrf_ble_gq_t * p_gatt_queue; /**< Pointer to BLE GATT queue instance. */ bool is_navigation_present; /**< If set to true, the navigation characteristic is present. Else not. */ uint16_t conn_handle; /**< Handle of the current connection (as provided by the BLE stack; BLE_CONN_HANDLE_INVALID if not in a connection). */ uint16_t service_handle; /**< Handle of Location and Navigation Service (as provided by the BLE stack). */ ble_gatts_char_handles_t loc_speed_handles; /**< Handles related to the Location and Speed characteristic. */ ble_gatts_char_handles_t feature_handles; /**< Handles related to the Location and Navigation Feature characteristic. */ ble_gatts_char_handles_t navigation_handles; /**< Handles related to the Navigation characteristic. */ ble_gatts_char_handles_t pos_qual_handles; /**< Handles related to the Position Quality characteristic. */ ble_gatts_char_handles_t ctrlpt_handles; uint32_t available_features; /**< Value of Location and Navigation feature. */ bool is_loc_speed_notification_enabled; /**< True if notification is enabled on the Location and Speed characteristic. */ bool is_nav_notification_enabled; /**< True if notification is enabled on the Navigation characteristic. */ notification_t pending_loc_speed_notifications[2]; /**< This buffer holds location and speed notifications. */ notification_t pending_navigation_notification; /**< This buffer holds navigation notifications. */ ble_lns_loc_speed_t * p_location_speed; /**< Location and Speed. */ ble_lns_pos_quality_t * p_position_quality; /**< Position measurement quality. */ ble_lns_navigation_t * p_navigation; /**< Navigation data structure. */ ble_lncp_t ctrl_pt; }; /**@brief Position status. This enumeration defines how to interpret the position data. */ typedef enum { BLE_LNS_NO_POSITION = 0, BLE_LNS_POSITION_OK = 1, BLE_LNS_ESTIMATED = 2, BLE_LNS_LAST_KNOWN_POSITION = 3 } ble_lns_pos_status_type_t; /**@brief The format of the position and speed measurements. */ typedef enum { BLE_LNS_SPEED_DISTANCE_FORMAT_2D = 0, BLE_LNS_SPEED_DISTANCE_FORMAT_3D = 1 } ble_lns_speed_distance_format_t; /**@brief Elevation source. */ typedef enum { BLE_LNS_ELEV_SOURCE_POSITIONING_SYSTEM = 0, BLE_LNS_ELEV_SOURCE_BAROMETRIC = 1, BLE_LNS_ELEV_SOURCE_DATABASE_SERVICE = 2, BLE_LNS_ELEV_SOURCE_OTHER = 3 } ble_lns_elevation_source_t; /**@brief Heading source. */ typedef enum { BLE_LNS_HEADING_SOURCE_MOVEMENT = 0, BLE_LNS_HEADING_SOURCE_COMPASS = 1 } ble_lns_heading_source_t; /**@brief Location and Speed data structure. */ struct ble_lns_loc_speed_s { bool instant_speed_present; /**< Instantaneous Speed present (0=not present, 1=present). */ bool total_distance_present; /**< Total Distance present (0=not present, 1=present). */ bool location_present; /**< Location present (0=not present, 1=present). */ bool elevation_present; /**< Elevation present (0=not present, 1=present). */ bool heading_present; /**< Heading present (0=not present, 1=present). */ bool rolling_time_present; /**< Rolling Time present (0=not present, 1=present). */ bool utc_time_time_present; /**< UTC Time present (0=not present, 1=present). */ ble_lns_pos_status_type_t position_status; /**< Status of current position */ ble_lns_speed_distance_format_t data_format; /**< Format of data (either 2D or 3D). */ ble_lns_elevation_source_t elevation_source; /**< Source of the elevation measurement. */ ble_lns_heading_source_t heading_source; /**< Source of the heading measurement. */ uint16_t instant_speed; /**< Instantaneous Speed (1/10 meter per sec). */ uint32_t total_distance; /**< Total Distance (meters), size=24 bits. */ int32_t latitude; /**< Latitude (10e-7 degrees). */ int32_t longitude; /**< Longitude (10e-7 degrees). */ int32_t elevation; /**< Elevation (1/100 meters), size=24 bits. */ uint16_t heading; /**< Heading (1/100 degrees). */ uint8_t rolling_time; /**< Rolling Time (seconds). */ ble_date_time_t utc_time; /**< UTC Time. */ }; /**@brief Position quality structure. */ struct ble_lns_pos_quality_s { bool number_of_satellites_in_solution_present; /**< The number of satellites present in solution (0=not present, 1=present). */ bool number_of_satellites_in_view_present; /**< The number of satellites present in solution (0=not present, 1=present). */ bool time_to_first_fix_present; /**< Time to the first position fix present (0=not present, 1=present). */ bool ehpe_present; /**< Error in horizontal position estimate present (0=not present, 1=present). */ bool evpe_present; /**< Error in vertical position estimate present (0=not present, 1=present). */ bool hdop_present; /**< Horizontal dilution of precision present (0=not present, 1=present). */ bool vdop_present; /**< Vertical dilution of precision present (0=not present, 1=present). */ ble_lns_pos_status_type_t position_status; /**< Status of last measured position. */ uint8_t number_of_satellites_in_solution; /**< The number of satellites in solution (unitless, with a resolution of 1). */ uint8_t number_of_satellites_in_view; /**< The number of satellites in view (unitless, with a resolution of 1). */ uint16_t time_to_first_fix; /**< Time to the first position fix (seconds, with a resolution of 1/10). */ uint32_t ehpe; /**< Error in horizontal position estimate (meters, with a resolution of 1/100). */ uint32_t evpe; /**< Error in vertical position estimate (meters, with a resolution of 1/100). */ uint8_t hdop; /**< Horizontal dilution of precision (unitless, with a resolution of 2/10). */ uint8_t vdop; /**< Vertical dilution of precision (unitless, with a resolution of 2/10). */ }; /**@brief Navigation indicator type. */ typedef enum { BLE_LNS_NAV_TO_WAYPOINT = 0, BLE_LNS_NAV_TO_DESTINATION = 1 } ble_lns_nav_indicator_type_t; /**@brief Navigation data structure. */ struct ble_lns_navigation_s { bool remaining_dist_present; /**< Remaining Distance present (0=not present, 1=present). */ bool remaining_vert_dist_present; /**< Remaining Vertical Distance present (0=not present, 1=present). */ bool eta_present; /**< Estimated Time of Arrival present (0=not present, 1=present). */ ble_lns_pos_status_type_t position_status; /**< Status of last measured position. */ ble_lns_heading_source_t heading_source; /**< Source of the heading measurement. */ ble_lns_nav_indicator_type_t navigation_indicator_type; /**< Navigation indicator type. */ bool waypoint_reached; /**< Waypoint Reached (0=not reached, 1=reached). */ bool destination_reached; /**< Destination Reached (0=not reached, 1=reached). */ uint16_t bearing; /**< Bearing (1/100 degrees).*/ uint16_t heading; /**< Heading (1/100 degrees), size=24 bit. */ uint32_t remaining_distance; /**< Remaining Distance (1/10 meters), size=24 bit. */ int32_t remaining_vert_distance; /**< Remaining Vertical Distance (1/100 meters), size=24 bit. */ ble_date_time_t eta; /**< Estimated Time of Arrival. */ }; /**@brief Function for initializing the Location and Navigation Service. * * @param[out] p_lns Location and Navigation Service structure. This structure must be supplied by * the application. It is initialized by this function, and will later * be used to identify this particular service instance. * @param[in] p_lns_init Information needed to initialize the service. * * @retval NRF_SUCCESS If the service was initialized successfully. * @retval NRF_ERROR_NULL If a NULL parameter was provided. * @retval NRF_INVALID_PARAMS If there is an inconsistency in the initialization structure. * @return Otherwise, an error code from either sd_ble_gatts_service_add() or sd_ble_gatts_characteristic_add() is returned. */ ret_code_t ble_lns_init(ble_lns_t * p_lns, ble_lns_init_t const * p_lns_init); /**@brief Function for handling Location and Navigation Service BLE stack events. * * @details This function handles all events from the BLE stack that are of interest to the * Location and Navigation Service. * * @note The function returns when a NULL parameter is provided. * * @param[in] p_ble_evt Event received from the BLE stack. * @param[in] p_context Location and Navigation Service structure. */ void ble_lns_on_ble_evt(ble_evt_t const * p_ble_evt, void * p_context); /**@brief Function for sending location and speed data if notification has been enabled. * * @details The application calls this function after having performed a location and speed determination. * If notification has been enabled, the location and speed data is encoded and sent to * the client. * * @param[in] p_lns Location and Navigation Service structure holding the location and speed data. * * @retval NRF_SUCCESS If the data was sent successfully. * @retval NRF_ERROR_NULL If a NULL parameter was provided. * @retval NRF_ERROR_INVALID_STATE If notification is disabled. */ ret_code_t ble_lns_loc_speed_send(ble_lns_t * p_lns); /**@brief Function for sending navigation data if notification has been enabled. * * @details The application calls this function after having performed a navigation determination. * If notification has been enabled, the navigation data is encoded and sent to * the client. * * @param[in] p_lns Location and Navigation Service structure holding the navigation data. * * @retval NRF_SUCCESS If the data was sent successfully. * @retval NRF_ERROR_NULL If a NULL parameter was provided. * @retval NRF_ERROR_NOT_SUPPORTED If the navigation characteristic is absent. * @retval NRF_ERROR_INVALID_STATE If navigation is not running or notification is disabled. */ ret_code_t ble_lns_navigation_send(ble_lns_t * p_lns); /**@brief Function for adding a route to the Location and Navigation Service. * * @param[in] p_lns Location and Navigation Service structure. * @param[in,out] p_route The new route to be added. The route ID is updated. * * @retval NRF_SUCCESS If the route was added successfully. * @retval NRF_ERROR_NULL If a NULL parameter was provided. * @retval NRF_ERROR_NOT_SUPPORTED If the navigation characteristic is absent. * @retval NRF_ERROR_NO_MEM If there is no memory left. * @retval NRF_ERROR_INTERNAL If there is an inconsistency in the routes table. */ ret_code_t ble_lns_add_route(ble_lns_t * p_lns, ble_lns_route_t * p_route); /**@brief Function for removing a route from the Location and Navigation Service. * * @param[in] p_lns Location and Navigation Service structure. * @param[in] route_id The ID of the route to be removed. * * @retval NRF_SUCCESS If the route was removed successfully. * @retval NRF_ERROR_NULL If a NULL parameter was provided. * @retval NRF_ERROR_NOT_SUPPORTED If the navigation characteristic is absent. * @retval NRF_INVALID_PARAM If the route ID does not exist. */ ret_code_t ble_lns_remove_route(ble_lns_t * p_lns, uint16_t route_id); #ifdef __cplusplus } #endif #endif // BLE_LNS_H__ /** @} */