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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/experimental_ble_lns/ble_lns.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/experimental_ble_lns/ble_lns.c | 1014 |
1 files changed, 1014 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/experimental_ble_lns/ble_lns.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/experimental_ble_lns/ble_lns.c new file mode 100644 index 0000000..4129d1d --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/ble/ble_services/experimental_ble_lns/ble_lns.c @@ -0,0 +1,1014 @@ +/** + * Copyright (c) 2015 - 2018, 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. + * + */ +#include "ble_lns.h" +#include "ble_ln_db.h" +#include "ble_ln_common.h" +#include "sdk_common.h" + +#define NRF_LOG_MODULE_NAME ble_lns +#include "nrf_log.h" +NRF_LOG_MODULE_REGISTER(); + +// Location and Speed flag bits +#define LOC_SPEED_FLAG_INSTANT_SPEED_PRESENT (0x01 << 0) /**< Instantaneous Speed Present bit. */ +#define LOC_SPEED_FLAG_TOTAL_DISTANCE_PRESENT (0x01 << 1) /**< Total Distance Present bit. */ +#define LOC_SPEED_FLAG_LOCATION_PRESENT (0x01 << 2) /**< Location Present bit. */ +#define LOC_SPEED_FLAG_ELEVATION_PRESENT (0x01 << 3) /**< Elevation Present bit. */ +#define LOC_SPEED_FLAG_HEADING_PRESENT (0x01 << 4) /**< Heading Present bit. */ +#define LOC_SPEED_FLAG_ROLLING_TIME_PRESENT (0x01 << 5) /**< Rolling Time Present bit. */ +#define LOC_SPEED_FLAG_UTC_TIME_PRESENT (0x01 << 6) /**< UTC Time Present bit. */ +#define LOC_SPEED_FLAG_POSITION_STATUS (0x03 << 7) /**< Position Status bits(2). */ +#define LOC_SPEED_FLAG_SPEED_AND_DIST_FORMAT (0x01 << 9) /**< Speed and Distance Format. */ +#define LOC_SPEED_FLAG_ELEVATION_SOURCE (0x03 << 10) /**< Elevation Source bits(2). */ +#define LOC_SPEED_FLAG_HEADING_SOURCE (0x01 << 12) /**< Heading Source. */ + +// Position Quality flag bits +#define POS_QUAL_FLAG_NUM_SATS_IN_SOLUTION_PRESENT (0x01 << 0) /**< Number of Satellites in Solution Present bit. */ +#define POS_QUAL_FLAG_NUM_SATS_IN_VIEW_PRESENT (0x01 << 1) /**< Number of Satellites in View Present bit. */ +#define POS_QUAL_FLAG_TIME_TO_FIRST_FIX_PRESESNT (0x01 << 2) /**< Time to First Fix Present bit. */ +#define POS_QUAL_FLAG_EHPE_PRESENT (0x01 << 3) /**< EHPE Present bit. */ +#define POS_QUAL_FLAG_EVPE_PRESENT (0x01 << 4) /**< EVPE Present bit. */ +#define POS_QUAL_FLAG_HDOP_PRESENT (0x01 << 5) /**< HDOP Present bit. */ +#define POS_QUAL_FLAG_VDOP_PRESENT (0x01 << 6) /**< VDOP Present bit. */ +#define POS_QUAL_FLAG_POSITION_STATUS (0x03 << 7) /**< Position Status bits(2). */ + +// Navigation flag bits +#define NAV_FLAG_REMAINING_DIST_PRESENT (0x01 << 0) /**< Remaining Distance Present bit. */ +#define NAV_FLAG_REAMINGING_VERT_DIST_PRESESNT (0x01 << 1) /**< Remaining Vertical Distance Present bit . */ +#define NAV_FLAG_ETA_PRESENT (0x01 << 2) /**< Estimated Time of Arrival Present bit. */ +#define NAV_FLAG_POSITION_STATUS (0x03 << 3) /**< Position Status bits(2). */ +#define NAV_FLAG_HEADING_SOURCE (0x01 << 5) /**< Heading Source bit. */ +#define NAV_FLAG_NAVIGATION_INDICATOR_TYPE (0x01 << 6) /**< Navigation Indicator Type bit. */ +#define NAV_FLAG_WAYPOINT_REACHED (0x01 << 7) /**< Waypoint Reached bit. */ +#define NAV_FLAG_DESTINATION_REACHED (0x01 << 8) /**< Destination Reached bit. */ + +#define BLE_LNS_NAV_MAX_LEN 19 /**< The length of a navigation notification when all features are enabled. See @ref ble_lns_navigation_t to see what this represents, or check https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.navigation.xml. */ + + +static void notification_buffer_process(ble_lns_t * p_lns) +{ + notification_t * p_notification; + + // See if a notification is pending + if (p_lns->pending_loc_speed_notifications[0].is_pending == true) + { + p_notification = &p_lns->pending_loc_speed_notifications[0]; + } + else if (p_lns->pending_loc_speed_notifications[1].is_pending == true) + { + p_notification = &p_lns->pending_loc_speed_notifications[1]; + } + else if (p_lns->pending_navigation_notification.is_pending == true) + { + p_notification = &p_lns->pending_navigation_notification; + } + else + { + p_notification = NULL; + } + + // send the notification if necessary + if (p_notification != NULL) + { + uint32_t err_code; + ble_gatts_hvx_params_t hvx_params; + + memset(&hvx_params, 0, sizeof(hvx_params)); + + uint16_t hvx_len = p_notification->len; + + hvx_params.handle = p_notification->handle; + hvx_params.type = BLE_GATT_HVX_NOTIFICATION; + hvx_params.offset = 0; + hvx_params.p_len = &hvx_len; + hvx_params.p_data = &p_notification->data[0]; + + err_code = sd_ble_gatts_hvx(p_lns->conn_handle, &hvx_params); + + if ((err_code == NRF_SUCCESS) && (hvx_len == p_notification->len)) + { + p_notification->is_pending = false; + } + } +} + + +/**@brief Connect event handler. + * + * @param[in] p_lns Location and Navigation Service structure. + * @param[in] p_ble_evt Event received from the BLE stack. + */ +static void on_connect(ble_lns_t * p_lns, ble_evt_t const * p_ble_evt) +{ + p_lns->conn_handle = p_ble_evt->evt.gap_evt.conn_handle; + + // clear pending notifications + p_lns->pending_loc_speed_notifications[0].is_pending = false; + p_lns->pending_loc_speed_notifications[1].is_pending = false; + p_lns->pending_navigation_notification.is_pending = false; +} + + +/**@brief Disconnect event handler. + * + * @param[in] p_lns Location and Navigation Service structure. + * @param[in] p_ble_evt Event received from the BLE stack. + */ +static void on_disconnect(ble_lns_t * p_lns, ble_evt_t const * p_ble_evt) +{ + if (p_lns->conn_handle != p_ble_evt->evt.gatts_evt.conn_handle) + { + return; + } + + p_lns->conn_handle = BLE_CONN_HANDLE_INVALID; +} + + +/**@brief Handle write events to the control point cccd. + * + * @param[in] p_lncp Location and Navigation Service structure. + * @param[in] p_evt_write Write event received from the BLE stack. + */ +static void on_ctrl_pt_cccd_write(ble_lns_t * p_lns, ble_gatts_evt_write_t const * p_evt_write) +{ + if (p_evt_write->len == BLE_CCCD_VALUE_LEN) + { + if (p_lns->evt_handler != NULL) + { + ble_lns_evt_t evt; + + if (ble_srv_is_indication_enabled(p_evt_write->data)) + { + evt.evt_type = BLE_LNS_CTRLPT_EVT_INDICATION_ENABLED; + } + else + { + evt.evt_type = BLE_LNS_CTRLPT_EVT_INDICATION_DISABLED; + } + + p_lns->evt_handler(p_lns, &evt); + } + } +} + + +/**@brief Handle write events to the Location and Speed cccd. + * + * @param[in] p_lns Location and Navigation Service structure. + * @param[in] p_evt_write Write event received from the BLE stack. + */ +static void on_loc_speed_cccd_write(ble_lns_t * p_lns, + ble_gatts_evt_write_t const * p_evt_write) +{ + if (p_evt_write->len == BLE_CCCD_VALUE_LEN) + { + // CCCD written, update notification state + p_lns->is_loc_speed_notification_enabled = ble_srv_is_notification_enabled(p_evt_write->data); + if (p_lns->evt_handler != NULL) + { + ble_lns_evt_t evt; + + if (p_lns->is_loc_speed_notification_enabled) + { + evt.evt_type = BLE_LNS_LOC_SPEED_EVT_NOTIFICATION_ENABLED; + } + else + { + evt.evt_type = BLE_LNS_LOC_SPEED_EVT_NOTIFICATION_DISABLED; + } + + p_lns->evt_handler(p_lns, &evt); + } + } +} + + +/**@brief Handle write events to the navigation cccd. + * + * @param[in] p_lns Location and Navigation Service structure. + * @param[in] p_evt_write Write event received from the BLE stack. + */ +static void on_nav_cccd_write(ble_lns_t * p_lns, + ble_gatts_evt_write_t const * p_evt_write) +{ + if (p_evt_write->len == BLE_CCCD_VALUE_LEN) + { + p_lns->is_nav_notification_enabled = ble_srv_is_notification_enabled(p_evt_write->data); + if (p_lns->evt_handler != NULL) + { + ble_lns_evt_t evt; + + if (p_lns->is_nav_notification_enabled) + { + evt.evt_type = BLE_LNS_NAVIGATION_EVT_NOTIFICATION_ENABLED; + } + else + { + evt.evt_type = BLE_LNS_NAVIGATION_EVT_NOTIFICATION_DISABLED; + } + + p_lns->evt_handler(p_lns, &evt); + } + } +} + + +/**@brief Write event handler. + * + * @param[in] p_lns Location and Navigation Service structure. + * @param[in] p_ble_evt Event received from the BLE stack. + */ +static void on_write(ble_lns_t * p_lns, ble_evt_t const * p_ble_evt) +{ + if (p_lns->conn_handle != p_ble_evt->evt.gatts_evt.conn_handle) + { + return; + } + + ble_gatts_evt_write_t const * p_evt_write = &p_ble_evt->evt.gatts_evt.params.write; + + if (p_evt_write->handle == p_lns->ctrlpt_handles.cccd_handle) + { + on_ctrl_pt_cccd_write(p_lns, p_evt_write); + } + else if (p_evt_write->handle == p_lns->loc_speed_handles.cccd_handle) + { + on_loc_speed_cccd_write(p_lns, p_evt_write); + } + else if (p_evt_write->handle == p_lns->navigation_handles.cccd_handle) + { + on_nav_cccd_write(p_lns, p_evt_write); + } +} + + +/**@brief Tx Complete event handler. This is used to retry sending a packet. + * + * @details Tx Complete event handler. + * Handles WRITE events from the BLE stack and if an indication was pending try sending it + * again. + * + * @param[in] p_lns Location navigation structure. + */ +static void on_tx_complete(ble_lns_t * p_lns) +{ + notification_buffer_process(p_lns); +} + + +/**@brief Encode position quality. + * + * @param[in] p_lns Location and Navigation Service structure. + * @param[in] p_pos_qual Position quality data to be encoded. + * @param[out] p_encoded_buffer Buffer where the encoded data will be written. + * + * @return Size of encoded data. + */ +static uint8_t pos_qual_encode(ble_lns_t const * p_lns, + ble_lns_pos_quality_t const * p_pos_qual, + uint8_t * p_encoded_buffer) +{ + uint16_t flags = 0; + uint8_t len = 2; // flags are added at last + + flags |= ((uint16_t)p_pos_qual->position_status << 7) & POS_QUAL_FLAG_POSITION_STATUS; + + if (p_pos_qual->number_of_satellites_in_solution_present) + { + flags |= POS_QUAL_FLAG_NUM_SATS_IN_SOLUTION_PRESENT; + p_encoded_buffer[len++] = p_pos_qual->number_of_satellites_in_solution; + } + + if (p_pos_qual->number_of_satellites_in_view_present) + { + flags |= POS_QUAL_FLAG_NUM_SATS_IN_VIEW_PRESENT; + p_encoded_buffer[len++] = p_pos_qual->number_of_satellites_in_view; + } + + if (p_pos_qual->time_to_first_fix_present) + { + flags |= POS_QUAL_FLAG_TIME_TO_FIRST_FIX_PRESESNT; + len += uint16_encode(p_pos_qual->time_to_first_fix, &p_encoded_buffer[len]); + } + + if (p_pos_qual->ehpe_present) + { + flags |= POS_QUAL_FLAG_EHPE_PRESENT; + len += uint32_encode(p_pos_qual->ehpe, &p_encoded_buffer[len]); + } + + if (p_pos_qual->evpe_present) + { + flags |= POS_QUAL_FLAG_EVPE_PRESENT; + len += uint32_encode(p_pos_qual->evpe, &p_encoded_buffer[len]); + } + + if (p_pos_qual->hdop_present) + { + flags |= POS_QUAL_FLAG_HDOP_PRESENT; + p_encoded_buffer[len++] = p_pos_qual->hdop; + } + + if (p_pos_qual->vdop_present) + { + flags |= POS_QUAL_FLAG_VDOP_PRESENT; + p_encoded_buffer[len++] = p_pos_qual->vdop; + } + + // Flags field + uint16_encode(flags, &p_encoded_buffer[0]); //lint !e534 "Ignoring return value of function" + + return len; +} + + +/**@brief Encode Location and Speed data packet 1 + * + * @param[in] p_lns Location and Navigation Service structure. + * @param[in] p_loc_speed Location and Speed data to be encoded. + * @param[out] p_encoded_buffer Pointer to buffer buffer where encoded data will be written. + * + * @return Size of encoded data. + * + */ +static uint8_t loc_speed_encode_packet1(ble_lns_t const * p_lns, + ble_lns_loc_speed_t const * p_loc_speed, + uint8_t * p_encoded_buffer) +{ + uint16_t flags = 0; + uint8_t len = 2; + + ble_lncp_mask_t const mask = ble_lncp_mask_get(&p_lns->ctrl_pt); + + // Instantaneous Speed + if (p_lns->available_features & BLE_LNS_FEATURE_INSTANT_SPEED_SUPPORTED) + { + if (p_loc_speed->instant_speed_present && !mask.instantaneous_speed) + { + flags |= LOC_SPEED_FLAG_INSTANT_SPEED_PRESENT; + flags |= ((uint16_t)p_loc_speed->data_format<<9) & LOC_SPEED_FLAG_SPEED_AND_DIST_FORMAT; + len += uint16_encode(p_loc_speed->instant_speed, &p_encoded_buffer[len]); + } + } + + // Total Distance + if (p_lns->available_features & BLE_LNS_FEATURE_TOTAL_DISTANCE_SUPPORTED) + { + if (p_loc_speed->total_distance_present && !mask.total_distance) + { + uint32_t const total_distance = ble_lncp_total_distance_get(&p_lns->ctrl_pt); + flags |= LOC_SPEED_FLAG_TOTAL_DISTANCE_PRESENT; + len += uint24_encode(total_distance, &p_encoded_buffer[len]); + } + } + + // Location + if (p_lns->available_features & BLE_LNS_FEATURE_LOCATION_SUPPORTED) + { + if (p_loc_speed->location_present && !mask.location) + { + flags |= LOC_SPEED_FLAG_LOCATION_PRESENT; + flags |= ((uint16_t)p_loc_speed->position_status <<7) & LOC_SPEED_FLAG_POSITION_STATUS; + len += uint32_encode(p_loc_speed->latitude, &p_encoded_buffer[len]); + len += uint32_encode(p_loc_speed->longitude, &p_encoded_buffer[len]); + } + } + + // Flags field + uint16_encode(flags, &p_encoded_buffer[0]); //lint !e534 "Ignoring return value of function" + + return len; +} + + +/**@brief Encode Location and Speed data packet 2 + * + * @param[in] p_lns Location and Navigation Service structure. + * @param[in] p_loc_speed Location and Speed data to be encoded. + * @param[out] p_encoded_buffer Pointer to buffer buffer where encoded data will be written. + * + * @return Size of encoded data. + * + */ +static uint8_t loc_speed_encode_packet2(ble_lns_t const * p_lns, + ble_lns_loc_speed_t const * p_loc_speed, + uint8_t * p_encoded_buffer) +{ + uint16_t flags = 0; + uint8_t len = 2; + + ble_lncp_mask_t const mask = ble_lncp_mask_get(&p_lns->ctrl_pt); + + // Elevation + if (p_lns->available_features & BLE_LNS_FEATURE_ELEVATION_SUPPORTED) + { + if (p_loc_speed->elevation_present && !mask.elevation) + { + uint32_t const elevation = ble_lncp_elevation_get(&p_lns->ctrl_pt); + + flags |= LOC_SPEED_FLAG_ELEVATION_PRESENT; + flags |= ((uint16_t) p_loc_speed->elevation_source << 10) & LOC_SPEED_FLAG_ELEVATION_SOURCE; + len += uint24_encode(elevation, &p_encoded_buffer[len]); + } + } + + // Heading + if (p_lns->available_features & BLE_LNS_FEATURE_HEADING_SUPPORTED) + { + if (p_loc_speed->heading_present && !mask.heading) + { + flags |= LOC_SPEED_FLAG_HEADING_PRESENT; + flags |= ((uint16_t) p_loc_speed->heading_source << 12) & LOC_SPEED_FLAG_HEADING_SOURCE; + len += uint16_encode(p_loc_speed->heading, &p_encoded_buffer[len]); + } + } + + // Rolling Time + if (p_lns->available_features & BLE_LNS_FEATURE_ROLLING_TIME_SUPPORTED) + { + if ((p_loc_speed->rolling_time_present && !mask.rolling_time)) + { + flags |= LOC_SPEED_FLAG_ROLLING_TIME_PRESENT; + p_encoded_buffer[len++] = p_loc_speed->rolling_time; + } + } + + // UTC Time + if (p_lns->available_features & BLE_LNS_FEATURE_UTC_TIME_SUPPORTED) + { + if ((p_loc_speed->utc_time_time_present && !mask.utc_time)) + { + flags |= LOC_SPEED_FLAG_UTC_TIME_PRESENT; + len += ble_date_time_encode(&p_loc_speed->utc_time, &p_encoded_buffer[len]); + } + } + // Flags field + uint16_encode(flags, &p_encoded_buffer[0]); //lint !e534 "Ignoring return value of function" + + return len; +} + + +/**@brief Encode Navigation data. + * + * @param[in] p_lns Location and Navigation Service structure. + * @param[in] p_navigation Navigation data to be encoded. + * @param[out] p_encoded_buffer Buffer where the encoded data will be written. + * + * @return Size of encoded data. + */ +static uint8_t navigation_encode(ble_lns_t const * p_lns, + ble_lns_navigation_t const * p_navigation, + uint8_t * p_encoded_buffer) +{ + uint16_t flags = 0; + uint8_t len = 2; + + // Bearing + len += uint16_encode(p_navigation->bearing, &p_encoded_buffer[len]); + + // Heading + len += uint16_encode(p_navigation->heading, &p_encoded_buffer[len]); + + // Remaining Distance + if (p_lns->available_features & BLE_LNS_FEATURE_REMAINING_DISTANCE_SUPPORTED) + { + if (p_navigation->remaining_dist_present) + { + flags |= NAV_FLAG_REMAINING_DIST_PRESENT; + p_encoded_buffer[len++] = ((p_navigation->remaining_distance >> 0) & 0xFF); + p_encoded_buffer[len++] = ((p_navigation->remaining_distance >> 8) & 0xFF); + p_encoded_buffer[len++] = ((p_navigation->remaining_distance >> 16) & 0xFF); + } + } + + // Remaining Vertical Distance + if (p_lns->available_features & BLE_LNS_FEATURE_REMAINING_VERT_DISTANCE_SUPPORTED) + { + if (p_navigation->remaining_vert_dist_present) + { + flags |= NAV_FLAG_REAMINGING_VERT_DIST_PRESESNT; + p_encoded_buffer[len++] = ((p_navigation->remaining_vert_distance >> 0) & 0xFF); + p_encoded_buffer[len++] = ((p_navigation->remaining_vert_distance >> 8) & 0xFF); + p_encoded_buffer[len++] = ((p_navigation->remaining_vert_distance >> 16) & 0xFF); + } + } + + // Estimated Time of Arrival + if (p_lns->available_features & BLE_LNS_FEATURE_EST_TIME_OF_ARRIVAL_SUPPORTED) + { + if (p_navigation->eta_present) + { + flags |= NAV_FLAG_ETA_PRESENT; + len += ble_date_time_encode(&p_navigation->eta, &p_encoded_buffer[len]); + } + } + + flags |= ((uint16_t)p_navigation->position_status <<3) & NAV_FLAG_POSITION_STATUS; + flags |= ((uint16_t)p_navigation->heading_source <<5) & NAV_FLAG_HEADING_SOURCE; + flags |= ((uint16_t)p_navigation->navigation_indicator_type<<6)& NAV_FLAG_NAVIGATION_INDICATOR_TYPE; + flags |= ((uint16_t)p_navigation->waypoint_reached <<7)& NAV_FLAG_WAYPOINT_REACHED; + flags |= ((uint16_t)p_navigation->destination_reached <<8)& NAV_FLAG_DESTINATION_REACHED; + + // Flags field + uint16_encode(flags, &p_encoded_buffer[0]); //lint !e534 "Ignoring return value of function" + + return len; +} + + +/**@brief Add Location and Navigation Feature characteristic. + * + * @param[in] p_lns Location and Navigation Service structure. + * @param[in] p_lns_init Information needed to initialize the service. + * + * @return NRF_SUCCESS on success, otherwise an error code. + */ +static ret_code_t loc_and_nav_feature_char_add(ble_lns_t * p_lns, ble_lns_init_t const * p_lns_init) +{ + uint8_t init_value_encoded[sizeof(uint32_t)]; + uint8_t len; + ble_add_char_params_t add_char_params; + + len = uint32_encode(p_lns_init->available_features, init_value_encoded); + + memset(&add_char_params, 0, sizeof(add_char_params)); + + add_char_params.uuid = BLE_UUID_LN_FEATURE_CHAR; + add_char_params.max_len = len; + add_char_params.init_len = len; + add_char_params.p_init_value = &init_value_encoded[0]; + add_char_params.char_props.read = true; + add_char_params.read_access = p_lns_init->loc_nav_feature_security_req_read_perm; + + return characteristic_add(p_lns->service_handle, + &add_char_params, + &p_lns->feature_handles); +} + + +/**@brief Add Location and Speed characteristic. + * + * @param[in] p_lns Location and Navigation Service structure. + * @param[in] p_lns_init Information needed to initialize the service. + * + * @return NRF_SUCCESS on success, otherwise an error code. + */ +static ret_code_t loc_speed_char_add(ble_lns_t * p_lns, ble_lns_init_t const * p_lns_init) +{ + uint8_t encoded_initial_loc_speed1[BLE_GATT_ATT_MTU_DEFAULT]; + uint8_t len; + ble_add_char_params_t add_char_params; + + len = loc_speed_encode_packet1(p_lns, p_lns_init->p_location_speed, &encoded_initial_loc_speed1[0]); + + memset(&add_char_params, 0, sizeof(add_char_params)); + + add_char_params.uuid = BLE_UUID_LN_LOCATION_AND_SPEED_CHAR; + add_char_params.max_len = BLE_GATT_ATT_MTU_DEFAULT ; + add_char_params.init_len = len; + add_char_params.p_init_value = &encoded_initial_loc_speed1[0]; + add_char_params.is_var_len = true; + add_char_params.char_props.notify = true; + add_char_params.cccd_write_access = p_lns_init->loc_speed_security_req_cccd_write_perm; + + return characteristic_add(p_lns->service_handle, + &add_char_params, + &p_lns->loc_speed_handles); +} + + +/**@brief Add Location and Navigation position quality characteristic. + * + * @param[in] p_lns Location and Navigation Service structure. + * @param[in] p_lns_init Information needed to initialize the service. + * + * @return NRF_SUCCESS on success, otherwise an error code. + */ +static ret_code_t pos_quality_char_add(ble_lns_t * p_lns, ble_lns_init_t const * p_lns_init) +{ + uint8_t len; + uint8_t init_value_encoded[BLE_GATT_ATT_MTU_DEFAULT]; + ble_add_char_params_t add_char_params; + + len = pos_qual_encode(p_lns, p_lns_init->p_position_quality, init_value_encoded); + + memset(&add_char_params, 0, sizeof(add_char_params)); + + add_char_params.uuid = BLE_UUID_LN_POSITION_QUALITY_CHAR; + add_char_params.max_len = BLE_GATT_ATT_MTU_DEFAULT ; + add_char_params.init_len = len; + add_char_params.p_init_value = init_value_encoded; + add_char_params.char_props.read = true; + add_char_params.read_access = p_lns_init->position_quality_security_req_read_perm; + + return characteristic_add(p_lns->service_handle, + &add_char_params, + &p_lns->pos_qual_handles); +} + + +/**@brief Add Navigation characteristic. + * + * @param[in] p_lns Location and Navigation Service structure. + * @param[in] p_lns_init Information needed to initialize the service. + * + * @return NRF_SUCCESS on success, otherwise an error code. + */ +static ret_code_t navigation_char_add(ble_lns_t * p_lns, ble_lns_init_t const * p_lns_init) +{ + ble_add_char_params_t add_char_params; + + memset(&add_char_params, 0, sizeof(add_char_params)); + + add_char_params.uuid = BLE_UUID_LN_NAVIGATION_CHAR; + add_char_params.max_len = BLE_LNS_NAV_MAX_LEN; + add_char_params.init_len = 0; + add_char_params.p_init_value = NULL; + add_char_params.char_props.notify = true; + add_char_params.cccd_write_access = p_lns_init->navigation_security_req_cccd_write_perm; + + return characteristic_add(p_lns->service_handle, + &add_char_params, + &p_lns->navigation_handles); +} + + +/** @brief Check if there is a mismatch in initialization parameters. + * + * @details It is possible to give an input which has an internal mismatch. Such a mismatch can arise in two different ways. + * One possibility is a mismatch between the characteristic present indicators and the available features specified. + * The other mismatch arises when no pointer to the characteristic data structure is specified. + * + * @param[in] p_lns_init The init structure which will be checked + * + * @return false if there is no mismatch. true if there is a mismatch + */ +static bool init_param_mismatch_present(ble_lns_init_t const * p_lns_init) +{ + if (p_lns_init->is_position_quality_present == false) + { + if (p_lns_init->available_features & + (BLE_LNS_FEATURE_NUM_SATS_IN_SOLUTION_SUPPORTED | + BLE_LNS_FEATURE_NUM_SATS_IN_VIEW_SUPPORTED | + BLE_LNS_FEATURE_TIME_TO_FIRST_FIX_SUPPORTED | + BLE_LNS_FEATURE_EST_HORZ_POS_ERROR_SUPPORTED | + BLE_LNS_FEATURE_EST_VERT_POS_ERROR_SUPPORTED | + BLE_LNS_FEATURE_HORZ_DILUTION_OF_PRECISION_SUPPORTED | + BLE_LNS_FEATURE_VERT_DILUTION_OF_PRECISION_SUPPORTED) + ) + { + return true; + } + if (p_lns_init->p_position_quality != NULL) + { + return true; + } + } + else if (p_lns_init->is_position_quality_present == true) + { + if (p_lns_init->p_position_quality == NULL) + { + return true; + } + } + + if (p_lns_init->is_control_point_present == false) + { + if (p_lns_init->available_features & + (BLE_LNS_FEATURE_LOC_AND_SPEED_CONTENT_MASKING_SUPPORTED | + BLE_LNS_FEATURE_FIX_RATE_SETTING_SUPPORTED | + BLE_LNS_FEATURE_ELEVATION_SETTING_SUPPORTED) + ) + { + return true; + } + } + + if (p_lns_init->is_navigation_present == false) + { + if (p_lns_init->available_features & + (BLE_LNS_FEATURE_REMAINING_DISTANCE_SUPPORTED | + BLE_LNS_FEATURE_REMAINING_VERT_DISTANCE_SUPPORTED | + BLE_LNS_FEATURE_EST_TIME_OF_ARRIVAL_SUPPORTED) + ) + { + return true; + } + if (p_lns_init->p_navigation != NULL) + { + return true; + } + } + else if (p_lns_init->is_navigation_present == true) + { + if (p_lns_init->p_navigation == NULL) + { + return true; + } + } + + // location and speed must always be specified + if (p_lns_init->p_location_speed == NULL) + { + return true; + } + + return false; +} + + +void ble_lns_on_ble_evt(ble_evt_t const * p_ble_evt, void * p_context) +{ + VERIFY_PARAM_NOT_NULL_VOID(p_context); + VERIFY_PARAM_NOT_NULL_VOID(p_ble_evt); + + ble_lns_t * p_lns = (ble_lns_t *)p_context; + ble_lncp_on_ble_evt(&p_lns->ctrl_pt, p_ble_evt); + + switch (p_ble_evt->header.evt_id) + { + case BLE_GAP_EVT_CONNECTED: + on_connect(p_lns, p_ble_evt); + break; + + case BLE_GAP_EVT_DISCONNECTED: + on_disconnect(p_lns, p_ble_evt); + break; + + case BLE_GATTS_EVT_WRITE: + on_write(p_lns, p_ble_evt); + break; + + case BLE_GATTS_EVT_HVN_TX_COMPLETE: + on_tx_complete(p_lns); + break; + + default: + // no implementation + break; + } +} + + +ret_code_t ble_lns_init(ble_lns_t * p_lns, ble_lns_init_t const * p_lns_init) +{ + VERIFY_PARAM_NOT_NULL(p_lns); + VERIFY_PARAM_NOT_NULL(p_lns_init); + + if (init_param_mismatch_present(p_lns_init) == true) + { + return NRF_ERROR_INVALID_PARAM; + } + + uint32_t err_code; + ble_uuid_t service_uuid; + ble_lncp_init_t lncp_init; + + // Initialize service structure + p_lns->evt_handler = p_lns_init->evt_handler; + p_lns->error_handler = p_lns_init->error_handler; + p_lns->conn_handle = BLE_CONN_HANDLE_INVALID; + p_lns->available_features = p_lns_init->available_features; + p_lns->is_navigation_present = p_lns_init->is_navigation_present; + + // clear pending notifications + p_lns->pending_loc_speed_notifications[0].is_pending = false; + p_lns->pending_loc_speed_notifications[1].is_pending = false; + p_lns->pending_navigation_notification.is_pending = false; + + p_lns->p_location_speed = p_lns_init->p_location_speed; + p_lns->p_position_quality = p_lns_init->p_position_quality; + p_lns->p_navigation = p_lns_init->p_navigation; + + p_lns->is_loc_speed_notification_enabled = false; + p_lns->is_nav_notification_enabled = false; + + ble_ln_db_init(); + + // Add service + BLE_UUID_BLE_ASSIGN(service_uuid, BLE_UUID_LOCATION_AND_NAVIGATION_SERVICE); + + err_code = sd_ble_gatts_service_add(BLE_GATTS_SRVC_TYPE_PRIMARY, &service_uuid, &p_lns->service_handle); + VERIFY_SUCCESS(err_code); + + // Add location and navigation feature characteristic + err_code = loc_and_nav_feature_char_add(p_lns, p_lns_init); + VERIFY_SUCCESS(err_code); + + // Add location and speed characteristic + err_code = loc_speed_char_add(p_lns, p_lns_init); + VERIFY_SUCCESS(err_code); + + if (p_lns_init->is_position_quality_present) + { + // Add Position quality characteristic + err_code = pos_quality_char_add(p_lns, p_lns_init); + VERIFY_SUCCESS(err_code); + } + else + { + p_lns->pos_qual_handles.cccd_handle = BLE_GATT_HANDLE_INVALID; + p_lns->pos_qual_handles.sccd_handle = BLE_GATT_HANDLE_INVALID; + p_lns->pos_qual_handles.user_desc_handle = BLE_GATT_HANDLE_INVALID; + p_lns->pos_qual_handles.value_handle = BLE_GATT_HANDLE_INVALID; + } + + if (p_lns_init->is_navigation_present) + { + // Add navigation characteristic + err_code = navigation_char_add(p_lns, p_lns_init); + VERIFY_SUCCESS(err_code); + } + else + { + p_lns->navigation_handles.cccd_handle = BLE_GATT_HANDLE_INVALID; + p_lns->navigation_handles.sccd_handle = BLE_GATT_HANDLE_INVALID; + p_lns->navigation_handles.user_desc_handle = BLE_GATT_HANDLE_INVALID; + p_lns->navigation_handles.value_handle = BLE_GATT_HANDLE_INVALID; + } + + if (p_lns_init->is_control_point_present) + { + lncp_init.error_handler = p_lns_init->error_handler; + lncp_init.evt_handler = p_lns_init->lncp_evt_handler; + lncp_init.write_perm = p_lns_init->ctrl_point_security_req_write_perm; + lncp_init.cccd_write_perm = p_lns_init->ctrl_point_security_req_cccd_write_perm; + lncp_init.available_features = p_lns_init->available_features; + lncp_init.is_position_quality_present = p_lns_init->is_position_quality_present; + lncp_init.is_navigation_present = p_lns_init->is_navigation_present; + + lncp_init.total_distance = p_lns_init->p_location_speed->total_distance; + lncp_init.elevation = p_lns_init->p_location_speed->elevation; + + lncp_init.service_handle = p_lns->service_handle; + lncp_init.navigation_handles = p_lns->navigation_handles; + + // Add control pointer characteristic + err_code = ble_lncp_init(&p_lns->ctrl_pt, &lncp_init); + VERIFY_SUCCESS(err_code); + + memcpy(&p_lns->ctrlpt_handles, &p_lns->ctrl_pt.ctrlpt_handles, sizeof(ble_gatts_char_handles_t)); + } + + NRF_LOG_DEBUG("Initialized"); + + return NRF_SUCCESS; +} + + +ret_code_t ble_lns_loc_speed_send(ble_lns_t * p_lns) +{ + VERIFY_PARAM_NOT_NULL(p_lns); + + if (p_lns->conn_handle == BLE_CONN_HANDLE_INVALID) + { + return NRF_ERROR_INVALID_STATE; + } + + if (!p_lns->is_loc_speed_notification_enabled) + { + return NRF_ERROR_INVALID_STATE; + } + + notification_t * notif1 = &p_lns->pending_loc_speed_notifications[0]; + notification_t * notif2 = &p_lns->pending_loc_speed_notifications[1]; + + // clear previous unsent data. Previous data is invalid. + notif1->is_pending = false; + notif2->is_pending = false; + + // check if it is necessary to send packet 1 + if (p_lns->available_features & (BLE_LNS_FEATURE_INSTANT_SPEED_SUPPORTED + | BLE_LNS_FEATURE_TOTAL_DISTANCE_SUPPORTED + | BLE_LNS_FEATURE_LOCATION_SUPPORTED)) + { + // encode + notif1->len = loc_speed_encode_packet1(p_lns, p_lns->p_location_speed, ¬if1->data[0]); + notif1->handle = p_lns->loc_speed_handles.value_handle; + notif1->is_pending = true; + + // send + notification_buffer_process(p_lns); + } + + // check if it is necessary to send packet 2 + if (p_lns->available_features & (BLE_LNS_FEATURE_ELEVATION_SUPPORTED + | BLE_LNS_FEATURE_HEADING_SUPPORTED + | BLE_LNS_FEATURE_ROLLING_TIME_SUPPORTED + | BLE_LNS_FEATURE_UTC_TIME_SUPPORTED)) + { + notif2->len = loc_speed_encode_packet2(p_lns, p_lns->p_location_speed, ¬if2->data[0]); + notif2->handle = p_lns->loc_speed_handles.value_handle; + notif2->is_pending = true; + + // send + notification_buffer_process(p_lns); + } + + return NRF_SUCCESS; +} + + +ret_code_t ble_lns_navigation_send(ble_lns_t * p_lns) +{ + VERIFY_PARAM_NOT_NULL(p_lns); + + if (p_lns->conn_handle == BLE_CONN_HANDLE_INVALID) + { + return NRF_ERROR_INVALID_STATE; + } + + notification_t * notif = &p_lns->pending_navigation_notification; + + // clear previous unsent data. Previous data is invalid. + notif->is_pending = false; + + if (!p_lns->is_navigation_present) + { + return NRF_ERROR_NOT_SUPPORTED; + } + + if (!p_lns->is_nav_notification_enabled) + { + return NRF_ERROR_INVALID_STATE; + } + + if (!ble_lncp_is_navigation_running(&p_lns->ctrl_pt)) + { + return NRF_ERROR_INVALID_STATE; + } + + notif->len = navigation_encode(p_lns, p_lns->p_navigation, ¬if->data[0]); + notif->handle = p_lns->navigation_handles.value_handle; + notif->is_pending = true; + + notification_buffer_process(p_lns); + + return NRF_SUCCESS; +} + + +ret_code_t ble_lns_add_route(ble_lns_t * p_lns, ble_lns_route_t * p_route) +{ + VERIFY_PARAM_NOT_NULL(p_lns); + VERIFY_PARAM_NOT_NULL(p_route); + + if (p_lns->is_navigation_present == false) + { + return NRF_ERROR_NOT_SUPPORTED; + } + + return ble_ln_db_record_add(p_route); +} + + +ret_code_t ble_lns_remove_route(ble_lns_t * p_lns, uint16_t route_id) +{ + VERIFY_PARAM_NOT_NULL(p_lns); + + if (p_lns->is_navigation_present == false) + { + return NRF_ERROR_NOT_SUPPORTED; + } + + return ble_ln_db_record_delete(route_id); +} |