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- #include "sdk_common.h"
- #if NRF_MODULE_ENABLED(BLE_DB_DISCOVERY)
- #include "ble_db_discovery.h"
- #include <stdlib.h>
- #include "ble_srv_common.h"
- #define NRF_LOG_MODULE_NAME ble_db_disc
- #include "nrf_log.h"
- NRF_LOG_MODULE_REGISTER();
- #define SRV_DISC_START_HANDLE 0x0001
- #define DB_DISCOVERY_MAX_USERS BLE_DB_DISCOVERY_MAX_SRV
- #define MODULE_INITIALIZED (m_initialized == true)
- static ble_uuid_t m_registered_handlers[DB_DISCOVERY_MAX_USERS];
- static ble_db_discovery_evt_handler_t m_evt_handler;
- static nrf_ble_gq_t * mp_gatt_queue;
- static uint32_t m_num_of_handlers_reg;
- static bool m_initialized = false;
- static ble_db_discovery_evt_handler_t registered_handler_get(ble_uuid_t const * p_srv_uuid)
- {
- for (uint32_t i = 0; i < m_num_of_handlers_reg; i++)
- {
- if (BLE_UUID_EQ(&(m_registered_handlers[i]), p_srv_uuid))
- {
- return (m_evt_handler);
- }
- }
- return NULL;
- }
- static uint32_t registered_handler_set(ble_uuid_t const * p_srv_uuid,
- ble_db_discovery_evt_handler_t p_evt_handler)
- {
- if (registered_handler_get(p_srv_uuid) != NULL)
- {
- return NRF_SUCCESS;
- }
- if (m_num_of_handlers_reg < DB_DISCOVERY_MAX_USERS)
- {
- m_registered_handlers[m_num_of_handlers_reg] = *p_srv_uuid;
- m_num_of_handlers_reg++;
- return NRF_SUCCESS;
- }
- else
- {
- return NRF_ERROR_NO_MEM;
- }
- }
- static void pending_user_evts_send(ble_db_discovery_t * p_db_discovery)
- {
- for (uint32_t i = 0; i < m_num_of_handlers_reg; i++)
- {
-
- p_db_discovery->pending_usr_evts[i].evt_handler(&(p_db_discovery->pending_usr_evts[i].evt));
- }
- p_db_discovery->pending_usr_evt_index = 0;
- }
- static void discovery_available_evt_trigger(ble_db_discovery_t * const p_db_discovery,
- uint16_t const conn_handle)
- {
- ble_db_discovery_evt_t evt;
- memset(&evt, 0, sizeof(evt));
- evt.conn_handle = conn_handle;
- evt.evt_type = BLE_DB_DISCOVERY_AVAILABLE;
- evt.params.p_db_instance = (void *)p_db_discovery;
- if (m_evt_handler)
- {
- m_evt_handler(&evt);
- }
- }
- static void discovery_error_evt_trigger(ble_db_discovery_t * p_db_discovery,
- uint32_t err_code,
- uint16_t conn_handle)
- {
- ble_db_discovery_evt_handler_t p_evt_handler;
- ble_gatt_db_srv_t * p_srv_being_discovered;
- p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]);
- p_evt_handler = registered_handler_get(&(p_srv_being_discovered->srv_uuid));
- if (p_evt_handler != NULL)
- {
- ble_db_discovery_evt_t evt =
- {
- .conn_handle = conn_handle,
- .evt_type = BLE_DB_DISCOVERY_ERROR,
- .params.err_code = err_code,
- };
- p_evt_handler(&evt);
- }
- }
- static void discovery_error_handler(uint32_t nrf_error,
- void * p_ctx,
- uint16_t conn_handle)
- {
- ble_db_discovery_t * p_db_discovery = (ble_db_discovery_t *)p_ctx;
- p_db_discovery->discovery_in_progress = false;
- discovery_error_evt_trigger(p_db_discovery, nrf_error, conn_handle);
- discovery_available_evt_trigger(p_db_discovery, conn_handle);
- }
- static void discovery_complete_evt_trigger(ble_db_discovery_t * p_db_discovery,
- bool is_srv_found,
- uint16_t conn_handle)
- {
- ble_db_discovery_evt_handler_t p_evt_handler;
- ble_gatt_db_srv_t * p_srv_being_discovered;
- p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]);
- p_evt_handler = registered_handler_get(&(p_srv_being_discovered->srv_uuid));
- if (p_evt_handler != NULL)
- {
- if (p_db_discovery->pending_usr_evt_index < DB_DISCOVERY_MAX_USERS)
- {
-
- p_db_discovery->pending_usr_evts[p_db_discovery->pending_usr_evt_index].evt.conn_handle = conn_handle;
- p_db_discovery->pending_usr_evts[p_db_discovery->pending_usr_evt_index].evt.params.discovered_db =
- *p_srv_being_discovered;
- if (is_srv_found)
- {
- p_db_discovery->pending_usr_evts[p_db_discovery->pending_usr_evt_index].evt.evt_type =
- BLE_DB_DISCOVERY_COMPLETE;
- }
- else
- {
- p_db_discovery->pending_usr_evts[p_db_discovery->pending_usr_evt_index].evt.evt_type =
- BLE_DB_DISCOVERY_SRV_NOT_FOUND;
- }
- p_db_discovery->pending_usr_evts[p_db_discovery->pending_usr_evt_index].evt_handler = p_evt_handler;
- p_db_discovery->pending_usr_evt_index++;
- if (p_db_discovery->pending_usr_evt_index == m_num_of_handlers_reg)
- {
-
-
- pending_user_evts_send(p_db_discovery);
- }
- else
- {
-
- }
- }
- }
- }
- static void on_srv_disc_completion(ble_db_discovery_t * p_db_discovery,
- uint16_t conn_handle)
- {
- nrf_ble_gq_req_t db_srv_disc_req;
- memset(&db_srv_disc_req, 0, sizeof(nrf_ble_gq_req_t));
- p_db_discovery->discoveries_count++;
-
- if (p_db_discovery->discoveries_count < m_num_of_handlers_reg)
- {
-
- p_db_discovery->curr_char_ind = 0;
-
- p_db_discovery->curr_srv_ind++;
- ble_gatt_db_srv_t * p_srv_being_discovered;
- p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]);
- p_srv_being_discovered->srv_uuid = m_registered_handlers[p_db_discovery->curr_srv_ind];
-
-
- p_srv_being_discovered->char_count = 0;
- NRF_LOG_DEBUG("Starting discovery of service with UUID 0x%x on connection handle 0x%x.",
- p_srv_being_discovered->srv_uuid.uuid, conn_handle);
- uint32_t err_code;
- db_srv_disc_req.type = NRF_BLE_GQ_REQ_SRV_DISCOVERY;
- db_srv_disc_req.params.gattc_srv_disc.start_handle = SRV_DISC_START_HANDLE;
- db_srv_disc_req.params.gattc_srv_disc.srvc_uuid = p_srv_being_discovered->srv_uuid;
- db_srv_disc_req.error_handler.p_ctx = p_db_discovery;
- db_srv_disc_req.error_handler.cb = discovery_error_handler;
- err_code = nrf_ble_gq_item_add(mp_gatt_queue, &db_srv_disc_req, conn_handle);
- if (err_code != NRF_SUCCESS)
- {
- discovery_error_handler(err_code, p_db_discovery, conn_handle);
- return;
- }
- }
- else
- {
-
- p_db_discovery->discovery_in_progress = false;
- discovery_available_evt_trigger(p_db_discovery, conn_handle);
- }
- }
- static bool is_char_discovery_reqd(ble_db_discovery_t * p_db_discovery,
- ble_gattc_char_t * p_after_char)
- {
- if (p_after_char->handle_value <
- p_db_discovery->services[p_db_discovery->curr_srv_ind].handle_range.end_handle)
- {
-
-
-
- return true;
- }
- return false;
- }
- static bool is_desc_discovery_reqd(ble_db_discovery_t * p_db_discovery,
- ble_gatt_db_char_t * p_curr_char,
- ble_gatt_db_char_t * p_next_char,
- ble_gattc_handle_range_t * p_handle_range)
- {
- if (p_next_char == NULL)
- {
-
-
- if (
- p_curr_char->characteristic.handle_value ==
- p_db_discovery->services[p_db_discovery->curr_srv_ind].handle_range.end_handle
- )
- {
-
-
- return false;
- }
- p_handle_range->start_handle = p_curr_char->characteristic.handle_value + 1;
-
-
- p_handle_range->end_handle =
- p_db_discovery->services[p_db_discovery->curr_srv_ind].handle_range.end_handle;
- return true;
- }
-
-
- if ((p_curr_char->characteristic.handle_value + 1) == p_next_char->characteristic.handle_decl)
- {
-
- return false;
- }
- p_handle_range->start_handle = p_curr_char->characteristic.handle_value + 1;
- p_handle_range->end_handle = p_next_char->characteristic.handle_decl - 1;
- return true;
- }
- static uint32_t characteristics_discover(ble_db_discovery_t * p_db_discovery,
- uint16_t conn_handle)
- {
- ble_gatt_db_srv_t * p_srv_being_discovered;
- ble_gattc_handle_range_t handle_range;
- nrf_ble_gq_req_t db_char_disc_req;
- memset(&db_char_disc_req, 0, sizeof(nrf_ble_gq_req_t));
- memset(&handle_range, 0, sizeof(ble_gattc_handle_range_t));
- p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]);
- if (p_db_discovery->curr_char_ind != 0)
- {
-
-
- ble_gattc_char_t * p_prev_char;
- uint8_t prev_char_ind = p_db_discovery->curr_char_ind - 1;
- p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]);
- p_prev_char = &(p_srv_being_discovered->charateristics[prev_char_ind].characteristic);
- handle_range.start_handle = p_prev_char->handle_value + 1;
- }
- else
- {
-
- handle_range.start_handle = p_srv_being_discovered->handle_range.start_handle;
- }
- handle_range.end_handle = p_srv_being_discovered->handle_range.end_handle;
- db_char_disc_req.type = NRF_BLE_GQ_REQ_CHAR_DISCOVERY;
- db_char_disc_req.params.gattc_char_disc = handle_range;
- db_char_disc_req.error_handler.p_ctx = p_db_discovery;
- db_char_disc_req.error_handler.cb = discovery_error_handler;
- return nrf_ble_gq_item_add(mp_gatt_queue, &db_char_disc_req, conn_handle);
- }
- static uint32_t descriptors_discover(ble_db_discovery_t * p_db_discovery,
- bool * p_raise_discov_complete,
- uint16_t conn_handle)
- {
- ble_gattc_handle_range_t handle_range;
- ble_gatt_db_char_t * p_curr_char_being_discovered;
- ble_gatt_db_srv_t * p_srv_being_discovered;
- nrf_ble_gq_req_t db_desc_disc_req;
- bool is_discovery_reqd = false;
- memset(&db_desc_disc_req, 0, sizeof(nrf_ble_gq_req_t));
- p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]);
- p_curr_char_being_discovered =
- &(p_srv_being_discovered->charateristics[p_db_discovery->curr_char_ind]);
- if ((p_db_discovery->curr_char_ind + 1) == p_srv_being_discovered->char_count)
- {
-
- is_discovery_reqd = is_desc_discovery_reqd(p_db_discovery,
- p_curr_char_being_discovered,
- NULL,
- &handle_range);
- }
- else
- {
- uint8_t i;
- ble_gatt_db_char_t * p_next_char;
- for (i = p_db_discovery->curr_char_ind; i < p_srv_being_discovered->char_count; i++)
- {
- if (i == (p_srv_being_discovered->char_count - 1))
- {
-
- p_next_char = NULL;
- }
- else
- {
- p_next_char = &(p_srv_being_discovered->charateristics[i + 1]);
- }
-
- if (is_desc_discovery_reqd(p_db_discovery,
- p_curr_char_being_discovered,
- p_next_char,
- &handle_range))
- {
- is_discovery_reqd = true;
- break;
- }
- else
- {
-
- p_curr_char_being_discovered = p_next_char;
- p_db_discovery->curr_char_ind++;
- }
- }
- }
- if (!is_discovery_reqd)
- {
-
-
- *p_raise_discov_complete = true;
- return NRF_SUCCESS;
- }
- *p_raise_discov_complete = false;
- db_desc_disc_req.type = NRF_BLE_GQ_REQ_DESC_DISCOVERY;
- db_desc_disc_req.params.gattc_desc_disc = handle_range;
- db_desc_disc_req.error_handler.p_ctx = p_db_discovery;
- db_desc_disc_req.error_handler.cb = discovery_error_handler;
- return nrf_ble_gq_item_add(mp_gatt_queue, &db_desc_disc_req, conn_handle);
- }
- static void on_primary_srv_discovery_rsp(ble_db_discovery_t * p_db_discovery,
- ble_gattc_evt_t const * p_ble_gattc_evt)
- {
- ble_gatt_db_srv_t * p_srv_being_discovered;
- p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]);
- if (p_ble_gattc_evt->conn_handle != p_db_discovery->conn_handle)
- {
- return;
- }
- if (p_ble_gattc_evt->gatt_status == BLE_GATT_STATUS_SUCCESS)
- {
- uint32_t err_code;
- ble_gattc_evt_prim_srvc_disc_rsp_t const * p_prim_srvc_disc_rsp_evt;
- NRF_LOG_DEBUG("Found service UUID 0x%x.", p_srv_being_discovered->srv_uuid.uuid);
- p_prim_srvc_disc_rsp_evt = &(p_ble_gattc_evt->params.prim_srvc_disc_rsp);
- p_srv_being_discovered->handle_range = p_prim_srvc_disc_rsp_evt->services[0].handle_range;
-
- uint8_t num_srv_previous_disc = p_db_discovery->srv_count;
-
- uint8_t current_srv_disc = p_prim_srvc_disc_rsp_evt->count;
- if ((num_srv_previous_disc + current_srv_disc) <= BLE_DB_DISCOVERY_MAX_SRV)
- {
- p_db_discovery->srv_count += current_srv_disc;
- }
- else
- {
- p_db_discovery->srv_count = BLE_DB_DISCOVERY_MAX_SRV;
- NRF_LOG_WARNING("Not enough space for services.");
- NRF_LOG_WARNING("Increase BLE_DB_DISCOVERY_MAX_SRV to be able to store more "
- "services!");
- }
- err_code = characteristics_discover(p_db_discovery, p_ble_gattc_evt->conn_handle);
- if (err_code != NRF_SUCCESS)
- {
- discovery_error_handler(err_code, p_db_discovery, p_ble_gattc_evt->conn_handle);
- }
- }
- else
- {
- NRF_LOG_DEBUG("Service UUID 0x%x not found.", p_srv_being_discovered->srv_uuid.uuid);
-
- discovery_complete_evt_trigger(p_db_discovery, false, p_ble_gattc_evt->conn_handle);
- on_srv_disc_completion(p_db_discovery, p_ble_gattc_evt->conn_handle);
- }
- }
- static void on_characteristic_discovery_rsp(ble_db_discovery_t * p_db_discovery,
- ble_gattc_evt_t const * p_ble_gattc_evt)
- {
- uint32_t err_code;
- ble_gatt_db_srv_t * p_srv_being_discovered;
- bool perform_desc_discov = false;
- if (p_ble_gattc_evt->conn_handle != p_db_discovery->conn_handle)
- {
- return;
- }
- p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]);
- if (p_ble_gattc_evt->gatt_status == BLE_GATT_STATUS_SUCCESS)
- {
- ble_gattc_evt_char_disc_rsp_t const * p_char_disc_rsp_evt;
- p_char_disc_rsp_evt = &(p_ble_gattc_evt->params.char_disc_rsp);
-
-
- uint8_t num_chars_prev_disc = p_srv_being_discovered->char_count;
-
-
- uint8_t num_chars_curr_disc = p_char_disc_rsp_evt->count;
-
- if ((num_chars_prev_disc + num_chars_curr_disc) <= BLE_GATT_DB_MAX_CHARS)
- {
-
- p_srv_being_discovered->char_count += num_chars_curr_disc;
- }
- else
- {
-
-
- p_srv_being_discovered->char_count = BLE_GATT_DB_MAX_CHARS;
- NRF_LOG_WARNING("Not enough space for characteristics associated with "
- "service 0x%04X !", p_srv_being_discovered->srv_uuid.uuid);
- NRF_LOG_WARNING("Increase BLE_GATT_DB_MAX_CHARS to be able to store more "
- "characteristics for each service!");
- }
- uint32_t i;
- uint32_t j;
- for (i = num_chars_prev_disc, j = 0; i < p_srv_being_discovered->char_count; i++, j++)
- {
- p_srv_being_discovered->charateristics[i].characteristic =
- p_char_disc_rsp_evt->chars[j];
- p_srv_being_discovered->charateristics[i].cccd_handle = BLE_GATT_HANDLE_INVALID;
- p_srv_being_discovered->charateristics[i].ext_prop_handle = BLE_GATT_HANDLE_INVALID;
- p_srv_being_discovered->charateristics[i].user_desc_handle = BLE_GATT_HANDLE_INVALID;
- p_srv_being_discovered->charateristics[i].report_ref_handle = BLE_GATT_HANDLE_INVALID;
- }
- ble_gattc_char_t * p_last_known_char;
- p_last_known_char = &(p_srv_being_discovered->charateristics[i - 1].characteristic);
-
-
- if ( !is_char_discovery_reqd(p_db_discovery, p_last_known_char)
- || (p_srv_being_discovered->char_count == BLE_GATT_DB_MAX_CHARS))
- {
- perform_desc_discov = true;
- }
- else
- {
-
- p_db_discovery->curr_char_ind = p_srv_being_discovered->char_count;
-
- err_code = characteristics_discover(p_db_discovery, p_ble_gattc_evt->conn_handle);
- if (err_code != NRF_SUCCESS)
- {
- discovery_error_handler(err_code, p_db_discovery, p_ble_gattc_evt->conn_handle);
- return;
- }
- }
- }
- else
- {
-
-
- perform_desc_discov = true;
- }
- if (perform_desc_discov)
- {
- bool raise_discov_complete;
- p_db_discovery->curr_char_ind = 0;
- err_code = descriptors_discover(p_db_discovery,
- &raise_discov_complete,
- p_ble_gattc_evt->conn_handle);
- if (err_code != NRF_SUCCESS)
- {
- discovery_error_handler(err_code, p_db_discovery, p_ble_gattc_evt->conn_handle);
- return;
- }
- if (raise_discov_complete)
- {
-
-
- NRF_LOG_DEBUG("Discovery of service with UUID 0x%x completed with success"
- " on connection handle 0x%x.",
- p_srv_being_discovered->srv_uuid.uuid,
- p_ble_gattc_evt->conn_handle);
- discovery_complete_evt_trigger(p_db_discovery, true, p_ble_gattc_evt->conn_handle);
- on_srv_disc_completion(p_db_discovery, p_ble_gattc_evt->conn_handle);
- }
- }
- }
- static void on_descriptor_discovery_rsp(ble_db_discovery_t * const p_db_discovery,
- const ble_gattc_evt_t * const p_ble_gattc_evt)
- {
- const ble_gattc_evt_desc_disc_rsp_t * p_desc_disc_rsp_evt;
- ble_gatt_db_srv_t * p_srv_being_discovered;
- if (p_ble_gattc_evt->conn_handle != p_db_discovery->conn_handle)
- {
- return;
- }
- p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]);
- p_desc_disc_rsp_evt = &(p_ble_gattc_evt->params.desc_disc_rsp);
- ble_gatt_db_char_t * p_char_being_discovered =
- &(p_srv_being_discovered->charateristics[p_db_discovery->curr_char_ind]);
- if (p_ble_gattc_evt->gatt_status == BLE_GATT_STATUS_SUCCESS)
- {
-
-
-
- for (uint32_t i = 0; i < p_desc_disc_rsp_evt->count; i++)
- {
- switch (p_desc_disc_rsp_evt->descs[i].uuid.uuid)
- {
- case BLE_UUID_DESCRIPTOR_CLIENT_CHAR_CONFIG:
- p_char_being_discovered->cccd_handle =
- p_desc_disc_rsp_evt->descs[i].handle;
- break;
- case BLE_UUID_DESCRIPTOR_CHAR_EXT_PROP:
- p_char_being_discovered->ext_prop_handle =
- p_desc_disc_rsp_evt->descs[i].handle;
- break;
- case BLE_UUID_DESCRIPTOR_CHAR_USER_DESC:
- p_char_being_discovered->user_desc_handle =
- p_desc_disc_rsp_evt->descs[i].handle;
- break;
- case BLE_UUID_REPORT_REF_DESCR:
- p_char_being_discovered->report_ref_handle =
- p_desc_disc_rsp_evt->descs[i].handle;
- break;
- }
-
- if (p_char_being_discovered->cccd_handle != BLE_GATT_HANDLE_INVALID &&
- p_char_being_discovered->ext_prop_handle != BLE_GATT_HANDLE_INVALID &&
- p_char_being_discovered->user_desc_handle != BLE_GATT_HANDLE_INVALID &&
- p_char_being_discovered->report_ref_handle != BLE_GATT_HANDLE_INVALID)
- {
- break;
- }
- }
- }
- bool raise_discov_complete = false;
- if ((p_db_discovery->curr_char_ind + 1) == p_srv_being_discovered->char_count)
- {
-
-
- raise_discov_complete = true;
- }
- else
- {
-
- uint32_t err_code;
- p_db_discovery->curr_char_ind++;
- err_code = descriptors_discover(p_db_discovery,
- &raise_discov_complete,
- p_ble_gattc_evt->conn_handle);
- if (err_code != NRF_SUCCESS)
- {
- discovery_error_handler(err_code, p_db_discovery, p_ble_gattc_evt->conn_handle);
- return;
- }
- }
- if (raise_discov_complete)
- {
- NRF_LOG_DEBUG("Discovery of service with UUID 0x%x completed with success"
- " on connection handle 0x%x.",
- p_srv_being_discovered->srv_uuid.uuid,
- p_ble_gattc_evt->conn_handle);
- discovery_complete_evt_trigger(p_db_discovery, true, p_ble_gattc_evt->conn_handle);
- on_srv_disc_completion(p_db_discovery, p_ble_gattc_evt->conn_handle);
- }
- }
- uint32_t ble_db_discovery_init(ble_db_discovery_init_t * p_db_init)
- {
- uint32_t err_code = NRF_SUCCESS;
- VERIFY_PARAM_NOT_NULL(p_db_init);
- VERIFY_PARAM_NOT_NULL(p_db_init->evt_handler);
- VERIFY_PARAM_NOT_NULL(p_db_init->p_gatt_queue);
- m_num_of_handlers_reg = 0;
- m_initialized = true;
- m_evt_handler = p_db_init->evt_handler;
- mp_gatt_queue = p_db_init->p_gatt_queue;
- return err_code;
- }
- uint32_t ble_db_discovery_close(ble_db_discovery_t * const p_db_discovery)
- {
- m_num_of_handlers_reg = 0;
- m_initialized = false;
- p_db_discovery->pending_usr_evt_index = 0;
- return NRF_SUCCESS;
- }
- uint32_t ble_db_discovery_evt_register(ble_uuid_t const * p_uuid)
- {
- VERIFY_PARAM_NOT_NULL(p_uuid);
- VERIFY_MODULE_INITIALIZED();
- return registered_handler_set(p_uuid, m_evt_handler);
- }
- static uint32_t discovery_start(ble_db_discovery_t * const p_db_discovery, uint16_t conn_handle)
- {
- ret_code_t err_code;
- ble_gatt_db_srv_t * p_srv_being_discovered;
- nrf_ble_gq_req_t db_srv_disc_req;
- memset(p_db_discovery, 0x00, sizeof(ble_db_discovery_t));
- memset(&db_srv_disc_req, 0x00, sizeof(nrf_ble_gq_req_t));
- err_code = nrf_ble_gq_conn_handle_register(mp_gatt_queue, conn_handle);
- VERIFY_SUCCESS(err_code);
- p_db_discovery->conn_handle = conn_handle;
- p_db_discovery->pending_usr_evt_index = 0;
- p_db_discovery->discoveries_count = 0;
- p_db_discovery->curr_srv_ind = 0;
- p_db_discovery->curr_char_ind = 0;
- p_srv_being_discovered = &(p_db_discovery->services[p_db_discovery->curr_srv_ind]);
- p_srv_being_discovered->srv_uuid = m_registered_handlers[p_db_discovery->curr_srv_ind];
- NRF_LOG_DEBUG("Starting discovery of service with UUID 0x%x on connection handle 0x%x.",
- p_srv_being_discovered->srv_uuid.uuid, conn_handle);
- db_srv_disc_req.type = NRF_BLE_GQ_REQ_SRV_DISCOVERY;
- db_srv_disc_req.params.gattc_srv_disc.start_handle = SRV_DISC_START_HANDLE;
- db_srv_disc_req.params.gattc_srv_disc.srvc_uuid = p_srv_being_discovered->srv_uuid;
- db_srv_disc_req.error_handler.p_ctx = p_db_discovery;
- db_srv_disc_req.error_handler.cb = discovery_error_handler;
- err_code = nrf_ble_gq_item_add(mp_gatt_queue, &db_srv_disc_req, conn_handle);
- if (err_code == NRF_SUCCESS)
- {
- p_db_discovery->discovery_in_progress = true;
- }
- return err_code;
- }
- uint32_t ble_db_discovery_start(ble_db_discovery_t * const p_db_discovery, uint16_t conn_handle)
- {
- VERIFY_PARAM_NOT_NULL(p_db_discovery);
- VERIFY_MODULE_INITIALIZED();
- if (m_num_of_handlers_reg == 0)
- {
-
- return NRF_ERROR_INVALID_STATE;
- }
- if (p_db_discovery->discovery_in_progress)
- {
- return NRF_ERROR_BUSY;
- }
- return discovery_start(p_db_discovery, conn_handle);
- }
- static void on_disconnected(ble_db_discovery_t * p_db_discovery,
- ble_gap_evt_t const * p_evt)
- {
- if (p_evt->conn_handle == p_db_discovery->conn_handle)
- {
- p_db_discovery->discovery_in_progress = false;
- p_db_discovery->conn_handle = BLE_CONN_HANDLE_INVALID;
- }
- }
- void ble_db_discovery_on_ble_evt(ble_evt_t const * p_ble_evt,
- void * p_context)
- {
- VERIFY_PARAM_NOT_NULL_VOID(p_ble_evt);
- VERIFY_PARAM_NOT_NULL_VOID(p_context);
- VERIFY_MODULE_INITIALIZED_VOID();
- ble_db_discovery_t * p_db_discovery = (ble_db_discovery_t *)p_context;
- switch (p_ble_evt->header.evt_id)
- {
- case BLE_GATTC_EVT_PRIM_SRVC_DISC_RSP:
- on_primary_srv_discovery_rsp(p_db_discovery, &(p_ble_evt->evt.gattc_evt));
- break;
- case BLE_GATTC_EVT_CHAR_DISC_RSP:
- on_characteristic_discovery_rsp(p_db_discovery, &(p_ble_evt->evt.gattc_evt));
- break;
- case BLE_GATTC_EVT_DESC_DISC_RSP:
- on_descriptor_discovery_rsp(p_db_discovery, &(p_ble_evt->evt.gattc_evt));
- break;
- case BLE_GAP_EVT_DISCONNECTED:
- on_disconnected(p_db_discovery, &(p_ble_evt->evt.gap_evt));
- break;
- default:
- break;
- }
- }
- #endif
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