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btle/btle_gattc.cpp@208:12b6b06ffcd6, 2015-06-19 (annotated)

Committer:
rgrover1
Date:
Fri Jun 19 15:55:17 2015 +0100
Revision:
208:12b6b06ffcd6
Parent:
207:d70392d1af99
Child:
209:d24159a1dad5
Synchronized with git rev d97797e7

Author: Rohit Grover

white space diffs.

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 206:d8c5b97557f2 53 uint8_t srvCount; /**< Number of services at the peers GATT database.*/
rgrover1 206:d8c5b97557f2 54 uint8_t currCharInd; /**< Index of the current characteristic being discovered. This is intended for internal use during service discovery.*/
rgrover1 206:d8c5b97557f2 55 uint8_t currSrvInd; /**< Index of the current service being discovered. This is intended for internal use during service discovery.*/
rgrover1 206:d8c5b97557f2 56
rgrover1 206:d8c5b97557f2 57 bool serviceDiscoveryInProgress;
rgrover1 206:d8c5b97557f2 58 bool characteristicDiscoveryInProgress;
rgrover1 198:a69d3d4797e8 59 };
rgrover1 194:c99fc3160091 60
rgrover1 207:d70392d1af99 61 static DiscoveryStatus_t discoveryStatus;
rgrover1 195:061ed80ffbcf 62
rgrover1 194:c99fc3160091 63 void launchServiceDiscovery(Gap::Handle_t connectionHandle)
rgrover1 194:c99fc3160091 64 {
rgrover1 203:fc9a565a1b2f 65 discoveryStatus.connHandle = connectionHandle;
rgrover1 203:fc9a565a1b2f 66 discoveryStatus.srvCount = 0;
rgrover1 203:fc9a565a1b2f 67 discoveryStatus.currSrvInd = 0;
rgrover1 203:fc9a565a1b2f 68
rgrover1 200:be560f1834c0 69 discoveryStatus.serviceDiscoveryInProgress = true;
rgrover1 200:be560f1834c0 70 discoveryStatus.characteristicDiscoveryInProgress = false;
rgrover1 194:c99fc3160091 71 printf("launch service discovery returned %u\r\n", sd_ble_gattc_primary_services_discover(connectionHandle, SRV_DISC_START_HANDLE, NULL));
rgrover1 194:c99fc3160091 72 }
rgrover1 194:c99fc3160091 73
rgrover1 202:3ce954ce3eb8 74 void launchCharacteristicDiscovery(Gap::Handle_t connectionHandle, Gap::Handle_t startHandle, Gap::Handle_t endHandle) {
rgrover1 204:2d370bfdfa21 75 discoveryStatus.characteristicDiscoveryInProgress = true;
rgrover1 204:2d370bfdfa21 76 discoveryStatus.serviceDiscoveryInProgress = false;
rgrover1 204:2d370bfdfa21 77
rgrover1 204:2d370bfdfa21 78 discoveryStatus.connHandle = connectionHandle;
rgrover1 204:2d370bfdfa21 79 discoveryStatus.currCharInd = 0;
rgrover1 202:3ce954ce3eb8 80 }
rgrover1 202:3ce954ce3eb8 81
rgrover1 194:c99fc3160091 82 void bleGattcEventHandler(const ble_evt_t *p_ble_evt)
rgrover1 194:c99fc3160091 83 {
rgrover1 194:c99fc3160091 84 switch (p_ble_evt->header.evt_id) {
rgrover1 194:c99fc3160091 85 case BLE_GATTC_EVT_PRIM_SRVC_DISC_RSP:
rgrover1 194:c99fc3160091 86 switch (p_ble_evt->evt.gattc_evt.gatt_status) {
rgrover1 194:c99fc3160091 87 case BLE_GATT_STATUS_SUCCESS: {
rgrover1 194:c99fc3160091 88 printf("count of primary services: %u\r\n", p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.count);
rgrover1 195:061ed80ffbcf 89 discoveryStatus.connHandle = p_ble_evt->evt.gattc_evt.conn_handle;
rgrover1 195:061ed80ffbcf 90 discoveryStatus.currSrvInd = 0;
rgrover1 195:061ed80ffbcf 91 discoveryStatus.srvCount = p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.count;
rgrover1 194:c99fc3160091 92
rgrover1 195:061ed80ffbcf 93 for (unsigned serviceIndex = 0; serviceIndex < discoveryStatus.srvCount; serviceIndex++) {
rgrover1 195:061ed80ffbcf 94 discoveryStatus.services[serviceIndex].
rgrover1 195:061ed80ffbcf 95 setup(p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[serviceIndex].uuid.uuid,
rgrover1 195:061ed80ffbcf 96 p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[serviceIndex].handle_range.start_handle,
rgrover1 195:061ed80ffbcf 97 p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[serviceIndex].handle_range.end_handle);
rgrover1 194:c99fc3160091 98 }
rgrover1 195:061ed80ffbcf 99 break;
rgrover1 194:c99fc3160091 100 }
rgrover1 195:061ed80ffbcf 101
rgrover1 194:c99fc3160091 102 case BLE_GATT_STATUS_ATTERR_ATTRIBUTE_NOT_FOUND: {
rgrover1 197:de757ae3358b 103 discoveryStatus.serviceDiscoveryInProgress = false;
rgrover1 194:c99fc3160091 104 printf("end of service discovery\r\n");
rgrover1 194:c99fc3160091 105 break;
rgrover1 194:c99fc3160091 106 }
rgrover1 195:061ed80ffbcf 107
rgrover1 194:c99fc3160091 108 default: {
rgrover1 197:de757ae3358b 109 discoveryStatus.serviceDiscoveryInProgress = false;
rgrover1 194:c99fc3160091 110 printf("gatt failure status: %u\r\n", p_ble_evt->evt.gattc_evt.gatt_status);
rgrover1 194:c99fc3160091 111 break;
rgrover1 194:c99fc3160091 112 }
rgrover1 194:c99fc3160091 113 }
rgrover1 194:c99fc3160091 114 break;
rgrover1 194:c99fc3160091 115
rgrover1 194:c99fc3160091 116 case BLE_GATTC_EVT_CHAR_DISC_RSP: {
rgrover1 194:c99fc3160091 117 switch (p_ble_evt->evt.gattc_evt.gatt_status) {
rgrover1 194:c99fc3160091 118 default:
rgrover1 194:c99fc3160091 119 printf("gatt failure status: %u\r\n", p_ble_evt->evt.gattc_evt.gatt_status);
rgrover1 194:c99fc3160091 120 break;
rgrover1 194:c99fc3160091 121 }
rgrover1 194:c99fc3160091 122 break;
rgrover1 194:c99fc3160091 123 }
rgrover1 194:c99fc3160091 124 }
rgrover1 195:061ed80ffbcf 125
rgrover1 199:c2c831c55f3d 126 while (discoveryStatus.serviceDiscoveryInProgress && (discoveryStatus.currSrvInd < discoveryStatus.srvCount)) {
rgrover1 195:061ed80ffbcf 127 printf("%x [%u %u]\r\n",
rgrover1 195:061ed80ffbcf 128 p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[discoveryStatus.currSrvInd].uuid.uuid,
rgrover1 195:061ed80ffbcf 129 p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[discoveryStatus.currSrvInd].handle_range.start_handle,
rgrover1 195:061ed80ffbcf 130 p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[discoveryStatus.currSrvInd].handle_range.end_handle);
rgrover1 195:061ed80ffbcf 131
rgrover1 195:061ed80ffbcf 132 // ble_gattc_handle_range_t handleRange = {
rgrover1 195:061ed80ffbcf 133 // .start_handle = p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[discoveryStatus.currSrvInd].handle_range.start_handle,
rgrover1 195:061ed80ffbcf 134 // .end_handle = p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[discoveryStatus.currSrvInd].handle_range.end_handle
rgrover1 195:061ed80ffbcf 135 // };
rgrover1 195:061ed80ffbcf 136 // printf("characteristics_discover returned %u\r\n",
rgrover1 195:061ed80ffbcf 137 // sd_ble_gattc_characteristics_discover(p_ble_evt->evt.gattc_evt.conn_handle, &handleRange));
rgrover1 195:061ed80ffbcf 138
rgrover1 195:061ed80ffbcf 139 discoveryStatus.currSrvInd++;
rgrover1 195:061ed80ffbcf 140 }
rgrover1 199:c2c831c55f3d 141 if (discoveryStatus.serviceDiscoveryInProgress && (discoveryStatus.srvCount > 0)) {
rgrover1 196:70f1b8354d57 142 printf("services discover returned %u\r\n",
rgrover1 196:70f1b8354d57 143 sd_ble_gattc_primary_services_discover(p_ble_evt->evt.gattc_evt.conn_handle,
rgrover1 196:70f1b8354d57 144 p_ble_evt->evt.gattc_evt.params.prim_srvc_disc_rsp.services[discoveryStatus.currSrvInd -1].handle_range.end_handle,
rgrover1 196:70f1b8354d57 145 NULL));
rgrover1 196:70f1b8354d57 146 }
rgrover1 194:c99fc3160091 147 }