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btle/btle_gattc.cpp@209:d24159a1dad5, 2015-06-19 (annotated)

Committer:
rgrover1
Date:
Fri Jun 19 15:55:17 2015 +0100
Revision:
209:d24159a1dad5
Parent:
208:12b6b06ffcd6
Child:
210:e7749aec4203
Synchronized with git rev e46987f4

Author: Rohit Grover

add charCount to DiscoveryStatus

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 194:c99fc3160091 1 /* mbed Microcontroller Library
rgrover1 194:c99fc3160091 2 * Copyright (c) 2006-2013 ARM Limited
rgrover1 194:c99fc3160091 3 *
rgrover1 194:c99fc3160091 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 194:c99fc3160091 5 * you may not use this file except in compliance with the License.
rgrover1 194:c99fc3160091 6 * You may obtain a copy of the License at
rgrover1 194:c99fc3160091 7 *
rgrover1 194:c99fc3160091 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 194:c99fc3160091 9 *
rgrover1 194:c99fc3160091 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 194:c99fc3160091 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 194:c99fc3160091 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 194:c99fc3160091 13 * See the License for the specific language governing permissions and
rgrover1 194:c99fc3160091 14 * limitations under the License.
rgrover1 194:c99fc3160091 15 */
rgrover1 194:c99fc3160091 16
rgrover1 194:c99fc3160091 17 #include "btle_gattc.h"
rgrover1 195:061ed80ffbcf 18 #include "UUID.h"
rgrover1 194:c99fc3160091 19
rgrover1 194:c99fc3160091 20 #define BLE_DB_DISCOVERY_MAX_SRV 4 /**< Maximum number of services supported by this module. This also indicates the maximum number of users allowed to be registered to this module. (one user per service). */
rgrover1 194:c99fc3160091 21 #define BLE_DB_DISCOVERY_MAX_CHAR_PER_SRV 4 /**< Maximum number of characteristics per service supported by this module. */
rgrover1 194:c99fc3160091 22
rgrover1 194:c99fc3160091 23 #define SRV_DISC_START_HANDLE 0x0001 /**< The start handle value used during service discovery. */
rgrover1 194:c99fc3160091 24
rgrover1 194:c99fc3160091 25
rgrover1 194:c99fc3160091 26 /**@brief Structure for holding information about the service and the characteristics found during
rgrover1 194:c99fc3160091 27 * the discovery process.
rgrover1 194:c99fc3160091 28 */
rgrover1 195:061ed80ffbcf 29 struct DiscoveredService {
rgrover1 195:061ed80ffbcf 30 DiscoveredService() {
rgrover1 195:061ed80ffbcf 31 /* empty */
rgrover1 195:061ed80ffbcf 32 }
rgrover1 195:061ed80ffbcf 33 DiscoveredService(ShortUUIDBytes_t uuidIn, Gap::Handle_t start, Gap::Handle_t end) {
rgrover1 195:061ed80ffbcf 34 setup(uuidIn, start, end);
rgrover1 195:061ed80ffbcf 35 }
rgrover1 195:061ed80ffbcf 36
rgrover1 195:061ed80ffbcf 37 void setup(ShortUUIDBytes_t uuidIn, Gap::Handle_t start, Gap::Handle_t end) {
rgrover1 195:061ed80ffbcf 38 uuid = uuidIn;
rgrover1 195:061ed80ffbcf 39 startHandle = start;
rgrover1 195:061ed80ffbcf 40 endHandle = end;
rgrover1 195:061ed80ffbcf 41 }
rgrover1 201:a13ada00eac7 42
rgrover1 208:12b6b06ffcd6 43 ShortUUIDBytes_t uuid; /**< UUID of the service. */
rgrover1 208:12b6b06ffcd6 44 Gap::Handle_t startHandle; /**< Service Handle Range. */
rgrover1 208:12b6b06ffcd6 45 Gap::Handle_t endHandle; /**< Service Handle Range. */
rgrover1 195:061ed80ffbcf 46 };
rgrover1 194:c99fc3160091 47
rgrover1 207:d70392d1af99 48 struct DiscoveryStatus_t {
rgrover1 206:d8c5b97557f2 49 DiscoveredService services[BLE_DB_DISCOVERY_MAX_SRV]; /**< Information related to the current service being discovered.
rgrover1 206:d8c5b97557f2 50 * This is intended for internal use during service discovery. */
rgrover1 205:7b1c55e70f45 51
rgrover1 206:d8c5b97557f2 52 uint16_t connHandle; /**< Connection handle as provided by the SoftDevice. */
rgrover1 209:d24159a1dad5 53 uint8_t currSrvInd; /**< Index of the current service being discovered. This is intended for internal use during service discovery.*/
rgrover1 206:d8c5b97557f2 54 uint8_t srvCount; /**< Number of services at the peers GATT database.*/
rgrover1 206:d8c5b97557f2 55 uint8_t currCharInd; /**< Index of the current characteristic being discovered. This is intended for internal use during service discovery.*/
rgrover1 209:d24159a1dad5 56 uint8_t charCount; /**< Number of characteristics within the service.*/
rgrover1 206:d8c5b97557f2 57
rgrover1 206:d8c5b97557f2 58 bool serviceDiscoveryInProgress;
rgrover1 206:d8c5b97557f2 59 bool characteristicDiscoveryInProgress;
rgrover1 198:a69d3d4797e8 60 };
rgrover1 194:c99fc3160091 61
rgrover1 207:d70392d1af99 62 static DiscoveryStatus_t discoveryStatus;
rgrover1 195:061ed80ffbcf 63
rgrover1 194:c99fc3160091 64 void launchServiceDiscovery(Gap::Handle_t connectionHandle)
rgrover1 194:c99fc3160091 65 {
rgrover1 203:fc9a565a1b2f 66 discoveryStatus.connHandle = connectionHandle;
rgrover1 203:fc9a565a1b2f 67 discoveryStatus.srvCount = 0;
rgrover1 203:fc9a565a1b2f 68 discoveryStatus.currSrvInd = 0;
rgrover1 203:fc9a565a1b2f 69
rgrover1 200:be560f1834c0 70 discoveryStatus.serviceDiscoveryInProgress = true;
rgrover1 200:be560f1834c0 71 discoveryStatus.characteristicDiscoveryInProgress = false;
rgrover1 194:c99fc3160091 72 printf("launch service discovery returned %u\r\n", sd_ble_gattc_primary_services_discover(connectionHandle, SRV_DISC_START_HANDLE, NULL));
rgrover1 194:c99fc3160091 73 }
rgrover1 194:c99fc3160091 74
rgrover1 202:3ce954ce3eb8 75 void launchCharacteristicDiscovery(Gap::Handle_t connectionHandle, Gap::Handle_t startHandle, Gap::Handle_t endHandle) {
rgrover1 204:2d370bfdfa21 76 discoveryStatus.characteristicDiscoveryInProgress = true;
rgrover1 204:2d370bfdfa21 77 discoveryStatus.serviceDiscoveryInProgress = false;
rgrover1 204:2d370bfdfa21 78
rgrover1 204:2d370bfdfa21 79 discoveryStatus.connHandle = connectionHandle;
rgrover1 204:2d370bfdfa21 80 discoveryStatus.currCharInd = 0;
rgrover1 202:3ce954ce3eb8 81 }
rgrover1 202:3ce954ce3eb8 82
rgrover1 194:c99fc3160091 83 void bleGattcEventHandler(const ble_evt_t *p_ble_evt)
rgrover1 194:c99fc3160091 84 {
rgrover1 194:c99fc3160091 85 switch (p_ble_evt->header.evt_id) {
rgrover1 194:c99fc3160091 86 case BLE_GATTC_EVT_PRIM_SRVC_DISC_RSP:
rgrover1 194:c99fc3160091 87 switch (p_ble_evt->evt.gattc_evt.gatt_status) {
rgrover1 194:c99fc3160091 88 case BLE_GATT_STATUS_SUCCESS: {
rgrover1 194:c99fc3160091 89 printf("count of primary services: %u\r\n", p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.count);
rgrover1 195:061ed80ffbcf 90 discoveryStatus.connHandle = p_ble_evt->evt.gattc_evt.conn_handle;
rgrover1 195:061ed80ffbcf 91 discoveryStatus.currSrvInd = 0;
rgrover1 195:061ed80ffbcf 92 discoveryStatus.srvCount = p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.count;
rgrover1 194:c99fc3160091 93
rgrover1 195:061ed80ffbcf 94 for (unsigned serviceIndex = 0; serviceIndex < discoveryStatus.srvCount; serviceIndex++) {
rgrover1 195:061ed80ffbcf 95 discoveryStatus.services[serviceIndex].
rgrover1 195:061ed80ffbcf 96 setup(p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[serviceIndex].uuid.uuid,
rgrover1 195:061ed80ffbcf 97 p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[serviceIndex].handle_range.start_handle,
rgrover1 195:061ed80ffbcf 98 p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[serviceIndex].handle_range.end_handle);
rgrover1 194:c99fc3160091 99 }
rgrover1 195:061ed80ffbcf 100 break;
rgrover1 194:c99fc3160091 101 }
rgrover1 195:061ed80ffbcf 102
rgrover1 194:c99fc3160091 103 case BLE_GATT_STATUS_ATTERR_ATTRIBUTE_NOT_FOUND: {
rgrover1 197:de757ae3358b 104 discoveryStatus.serviceDiscoveryInProgress = false;
rgrover1 194:c99fc3160091 105 printf("end of service discovery\r\n");
rgrover1 194:c99fc3160091 106 break;
rgrover1 194:c99fc3160091 107 }
rgrover1 195:061ed80ffbcf 108
rgrover1 194:c99fc3160091 109 default: {
rgrover1 197:de757ae3358b 110 discoveryStatus.serviceDiscoveryInProgress = false;
rgrover1 194:c99fc3160091 111 printf("gatt failure status: %u\r\n", p_ble_evt->evt.gattc_evt.gatt_status);
rgrover1 194:c99fc3160091 112 break;
rgrover1 194:c99fc3160091 113 }
rgrover1 194:c99fc3160091 114 }
rgrover1 194:c99fc3160091 115 break;
rgrover1 194:c99fc3160091 116
rgrover1 194:c99fc3160091 117 case BLE_GATTC_EVT_CHAR_DISC_RSP: {
rgrover1 194:c99fc3160091 118 switch (p_ble_evt->evt.gattc_evt.gatt_status) {
rgrover1 194:c99fc3160091 119 default:
rgrover1 194:c99fc3160091 120 printf("gatt failure status: %u\r\n", p_ble_evt->evt.gattc_evt.gatt_status);
rgrover1 194:c99fc3160091 121 break;
rgrover1 194:c99fc3160091 122 }
rgrover1 194:c99fc3160091 123 break;
rgrover1 194:c99fc3160091 124 }
rgrover1 194:c99fc3160091 125 }
rgrover1 195:061ed80ffbcf 126
rgrover1 199:c2c831c55f3d 127 while (discoveryStatus.serviceDiscoveryInProgress && (discoveryStatus.currSrvInd < discoveryStatus.srvCount)) {
rgrover1 195:061ed80ffbcf 128 printf("%x [%u %u]\r\n",
rgrover1 195:061ed80ffbcf 129 p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[discoveryStatus.currSrvInd].uuid.uuid,
rgrover1 195:061ed80ffbcf 130 p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[discoveryStatus.currSrvInd].handle_range.start_handle,
rgrover1 195:061ed80ffbcf 131 p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[discoveryStatus.currSrvInd].handle_range.end_handle);
rgrover1 195:061ed80ffbcf 132
rgrover1 195:061ed80ffbcf 133 // ble_gattc_handle_range_t handleRange = {
rgrover1 195:061ed80ffbcf 134 // .start_handle = p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[discoveryStatus.currSrvInd].handle_range.start_handle,
rgrover1 195:061ed80ffbcf 135 // .end_handle = p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[discoveryStatus.currSrvInd].handle_range.end_handle
rgrover1 195:061ed80ffbcf 136 // };
rgrover1 195:061ed80ffbcf 137 // printf("characteristics_discover returned %u\r\n",
rgrover1 195:061ed80ffbcf 138 // sd_ble_gattc_characteristics_discover(p_ble_evt->evt.gattc_evt.conn_handle, &handleRange));
rgrover1 195:061ed80ffbcf 139
rgrover1 195:061ed80ffbcf 140 discoveryStatus.currSrvInd++;
rgrover1 195:061ed80ffbcf 141 }
rgrover1 199:c2c831c55f3d 142 if (discoveryStatus.serviceDiscoveryInProgress && (discoveryStatus.srvCount > 0)) {
rgrover1 196:70f1b8354d57 143 printf("services discover returned %u\r\n",
rgrover1 196:70f1b8354d57 144 sd_ble_gattc_primary_services_discover(p_ble_evt->evt.gattc_evt.conn_handle,
rgrover1 196:70f1b8354d57 145 p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[discoveryStatus.currSrvInd -1].handle_range.end_handle,
rgrover1 196:70f1b8354d57 146 NULL));
rgrover1 196:70f1b8354d57 147 }
rgrover1 194:c99fc3160091 148 }