Oscar Ariza / nRF51822

nordic

Fork of nRF51822 by Nordic Semiconductor

btle/btle_discovery.cpp@249:71ef03789dd3, 2015-06-19 (annotated)

Committer:
rgrover1
Date:
Fri Jun 19 15:55:22 2015 +0100
Revision:
249:71ef03789dd3
Parent:
248:df37e7bb3f71
Child:
250:55aa8e43f532
Synchronized with git rev c766a700

Author: Rohit Grover

move most things into NordicServiceDiscovery

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 244:a966506d1e5b 1 /* mbed Microcontroller Library
rgrover1 244:a966506d1e5b 2 * Copyright (c) 2006-2013 ARM Limited
rgrover1 244:a966506d1e5b 3 *
rgrover1 244:a966506d1e5b 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 244:a966506d1e5b 5 * you may not use this file except in compliance with the License.
rgrover1 244:a966506d1e5b 6 * You may obtain a copy of the License at
rgrover1 244:a966506d1e5b 7 *
rgrover1 244:a966506d1e5b 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 244:a966506d1e5b 9 *
rgrover1 244:a966506d1e5b 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 244:a966506d1e5b 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 244:a966506d1e5b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 244:a966506d1e5b 13 * See the License for the specific language governing permissions and
rgrover1 244:a966506d1e5b 14 * limitations under the License.
rgrover1 244:a966506d1e5b 15 */
rgrover1 244:a966506d1e5b 16
rgrover1 240:693a1f145b5a 17 #include "blecommon.h"
rgrover1 240:693a1f145b5a 18 #include "UUID.h"
rgrover1 240:693a1f145b5a 19 #include "Gap.h"
rgrover1 240:693a1f145b5a 20 #include "nrf_error.h"
rgrover1 240:693a1f145b5a 21 #include "btle_discovery.h"
rgrover1 240:693a1f145b5a 22 #include "ble_err.h"
rgrover1 244:a966506d1e5b 23
rgrover1 244:a966506d1e5b 24 static NordicServiceDiscovery discoverySingleton;
rgrover1 240:693a1f145b5a 25
rgrover1 240:693a1f145b5a 26 ble_error_t
rgrover1 240:693a1f145b5a 27 ServiceDiscovery::launch(Gap::Handle_t connectionHandle, ServiceCallback_t sc, CharacteristicCallback_t cc)
rgrover1 240:693a1f145b5a 28 {
rgrover1 244:a966506d1e5b 29 discoverySingleton.serviceDiscoveryStarted(connectionHandle);
rgrover1 240:693a1f145b5a 30
rgrover1 240:693a1f145b5a 31 uint32_t rc;
rgrover1 249:71ef03789dd3 32 if ((rc = sd_ble_gattc_primary_services_discover(connectionHandle, NordicServiceDiscovery::SRV_DISC_START_HANDLE, NULL)) != NRF_SUCCESS) {
rgrover1 249:71ef03789dd3 33 discoverySingleton.terminate();
rgrover1 240:693a1f145b5a 34 switch (rc) {
rgrover1 240:693a1f145b5a 35 case NRF_ERROR_INVALID_PARAM:
rgrover1 240:693a1f145b5a 36 case BLE_ERROR_INVALID_CONN_HANDLE:
rgrover1 240:693a1f145b5a 37 return BLE_ERROR_INVALID_PARAM;
rgrover1 240:693a1f145b5a 38 case NRF_ERROR_BUSY:
rgrover1 240:693a1f145b5a 39 return BLE_STACK_BUSY;
rgrover1 240:693a1f145b5a 40 default:
rgrover1 240:693a1f145b5a 41 case NRF_ERROR_INVALID_STATE:
rgrover1 240:693a1f145b5a 42 return BLE_ERROR_INVALID_STATE;
rgrover1 240:693a1f145b5a 43 }
rgrover1 240:693a1f145b5a 44 }
rgrover1 240:693a1f145b5a 45
rgrover1 240:693a1f145b5a 46 return BLE_ERROR_NONE;
rgrover1 240:693a1f145b5a 47 }
rgrover1 240:693a1f145b5a 48
rgrover1 249:71ef03789dd3 49 void
rgrover1 249:71ef03789dd3 50 ServiceDiscovery::terminate(void)
rgrover1 249:71ef03789dd3 51 {
rgrover1 249:71ef03789dd3 52 discoverySingleton.terminateServiceDiscovery();
rgrover1 249:71ef03789dd3 53 }
rgrover1 249:71ef03789dd3 54
rgrover1 244:a966506d1e5b 55 ble_error_t
rgrover1 244:a966506d1e5b 56 NordicServiceDiscovery::launchCharacteristicDiscovery(Gap::Handle_t connectionHandle, Gap::Handle_t startHandle, Gap::Handle_t endHandle) {
rgrover1 244:a966506d1e5b 57 discoverySingleton.characteristicDiscoveryStarted(connectionHandle);
rgrover1 240:693a1f145b5a 58
rgrover1 240:693a1f145b5a 59 ble_gattc_handle_range_t handleRange = {
rgrover1 240:693a1f145b5a 60 .start_handle = startHandle,
rgrover1 240:693a1f145b5a 61 .end_handle = endHandle
rgrover1 240:693a1f145b5a 62 };
rgrover1 240:693a1f145b5a 63 uint32_t rc;
rgrover1 240:693a1f145b5a 64 if ((rc = sd_ble_gattc_characteristics_discover(connectionHandle, &handleRange)) != NRF_SUCCESS) {
rgrover1 244:a966506d1e5b 65 discoverySingleton.terminateCharacteristicDiscovery();
rgrover1 240:693a1f145b5a 66 switch (rc) {
rgrover1 240:693a1f145b5a 67 case BLE_ERROR_INVALID_CONN_HANDLE:
rgrover1 240:693a1f145b5a 68 case NRF_ERROR_INVALID_ADDR:
rgrover1 240:693a1f145b5a 69 return BLE_ERROR_INVALID_PARAM;
rgrover1 240:693a1f145b5a 70 case NRF_ERROR_BUSY:
rgrover1 240:693a1f145b5a 71 return BLE_STACK_BUSY;
rgrover1 240:693a1f145b5a 72 default:
rgrover1 240:693a1f145b5a 73 case NRF_ERROR_INVALID_STATE:
rgrover1 240:693a1f145b5a 74 return BLE_ERROR_INVALID_STATE;
rgrover1 240:693a1f145b5a 75 }
rgrover1 240:693a1f145b5a 76 }
rgrover1 240:693a1f145b5a 77
rgrover1 240:693a1f145b5a 78 return BLE_ERROR_NONE;
rgrover1 240:693a1f145b5a 79 }
rgrover1 240:693a1f145b5a 80
rgrover1 240:693a1f145b5a 81 void
rgrover1 241:75b69581d1dd 82 NordicServiceDiscovery::setupDiscoveredServices(const ble_gattc_evt_prim_srvc_disc_rsp_t *response)
rgrover1 240:693a1f145b5a 83 {
rgrover1 243:73fc02cc20b1 84 serviceIndex = 0;
rgrover1 243:73fc02cc20b1 85 numServices = response->count;
rgrover1 240:693a1f145b5a 86
rgrover1 240:693a1f145b5a 87 /* Account for the limitation on the number of discovered services we can handle at a time. */
rgrover1 243:73fc02cc20b1 88 if (numServices > BLE_DB_DISCOVERY_MAX_SRV) {
rgrover1 243:73fc02cc20b1 89 numServices = BLE_DB_DISCOVERY_MAX_SRV;
rgrover1 240:693a1f145b5a 90 }
rgrover1 240:693a1f145b5a 91
rgrover1 243:73fc02cc20b1 92 for (unsigned serviceIndex = 0; serviceIndex < numServices; serviceIndex++) {
rgrover1 240:693a1f145b5a 93 services[serviceIndex].setup(response->services[serviceIndex].uuid.uuid,
rgrover1 240:693a1f145b5a 94 response->services[serviceIndex].handle_range.start_handle,
rgrover1 240:693a1f145b5a 95 response->services[serviceIndex].handle_range.end_handle);
rgrover1 240:693a1f145b5a 96 }
rgrover1 240:693a1f145b5a 97 }
rgrover1 240:693a1f145b5a 98
rgrover1 240:693a1f145b5a 99 void
rgrover1 241:75b69581d1dd 100 NordicServiceDiscovery::setupDiscoveredCharacteristics(const ble_gattc_evt_char_disc_rsp_t *response)
rgrover1 240:693a1f145b5a 101 {
rgrover1 243:73fc02cc20b1 102 characteristicIndex = 0;
rgrover1 243:73fc02cc20b1 103 numCharacteristics = response->count;
rgrover1 240:693a1f145b5a 104
rgrover1 240:693a1f145b5a 105 /* Account for the limitation on the number of discovered characteristics we can handle at a time. */
rgrover1 243:73fc02cc20b1 106 if (numCharacteristics > BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV) {
rgrover1 243:73fc02cc20b1 107 numCharacteristics = BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV;
rgrover1 240:693a1f145b5a 108 }
rgrover1 240:693a1f145b5a 109
rgrover1 243:73fc02cc20b1 110 for (unsigned charIndex = 0; charIndex < numCharacteristics; charIndex++) {
rgrover1 240:693a1f145b5a 111 characteristics[charIndex].setup(response->chars[charIndex].uuid.uuid,
rgrover1 240:693a1f145b5a 112 *(const uint8_t *)(&response->chars[charIndex].char_props),
rgrover1 240:693a1f145b5a 113 response->chars[charIndex].handle_decl,
rgrover1 240:693a1f145b5a 114 response->chars[charIndex].handle_value);
rgrover1 240:693a1f145b5a 115 }
rgrover1 244:a966506d1e5b 116 }
rgrover1 244:a966506d1e5b 117
rgrover1 244:a966506d1e5b 118 void bleGattcEventHandler(const ble_evt_t *p_ble_evt)
rgrover1 244:a966506d1e5b 119 {
rgrover1 244:a966506d1e5b 120 switch (p_ble_evt->header.evt_id) {
rgrover1 244:a966506d1e5b 121 case BLE_GATTC_EVT_PRIM_SRVC_DISC_RSP:
rgrover1 244:a966506d1e5b 122 switch (p_ble_evt->evt.gattc_evt.gatt_status) {
rgrover1 244:a966506d1e5b 123 case BLE_GATT_STATUS_SUCCESS:
rgrover1 244:a966506d1e5b 124 discoverySingleton.setupDiscoveredServices(&p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp);
rgrover1 244:a966506d1e5b 125 break;
rgrover1 244:a966506d1e5b 126
rgrover1 244:a966506d1e5b 127 case BLE_GATT_STATUS_ATTERR_ATTRIBUTE_NOT_FOUND:
rgrover1 244:a966506d1e5b 128 default:
rgrover1 244:a966506d1e5b 129 discoverySingleton.terminate();
rgrover1 244:a966506d1e5b 130 break;
rgrover1 244:a966506d1e5b 131 }
rgrover1 244:a966506d1e5b 132 break;
rgrover1 244:a966506d1e5b 133
rgrover1 244:a966506d1e5b 134 case BLE_GATTC_EVT_CHAR_DISC_RSP:
rgrover1 244:a966506d1e5b 135 switch (p_ble_evt->evt.gattc_evt.gatt_status) {
rgrover1 244:a966506d1e5b 136 case BLE_GATT_STATUS_SUCCESS:
rgrover1 244:a966506d1e5b 137 discoverySingleton.setupDiscoveredCharacteristics(&p_ble_evt->evt.gattc_evt.params.char_disc_rsp);
rgrover1 244:a966506d1e5b 138 break;
rgrover1 244:a966506d1e5b 139
rgrover1 244:a966506d1e5b 140 case BLE_GATT_STATUS_ATTERR_ATTRIBUTE_NOT_FOUND:
rgrover1 244:a966506d1e5b 141 default:
rgrover1 244:a966506d1e5b 142 discoverySingleton.terminateCharacteristicDiscovery();
rgrover1 244:a966506d1e5b 143 break;
rgrover1 244:a966506d1e5b 144 }
rgrover1 244:a966506d1e5b 145 break;
rgrover1 244:a966506d1e5b 146 }
rgrover1 244:a966506d1e5b 147
rgrover1 244:a966506d1e5b 148 discoverySingleton.progressCharacteristicDiscovery();
rgrover1 244:a966506d1e5b 149 discoverySingleton.progressServiceDiscovery();
rgrover1 240:693a1f145b5a 150 }