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source/nRF51GattClient.h@381:c997e9717fb7, 2015-07-06 (annotated)

Committer:
rgrover1
Date:
Mon Jul 06 10:21:03 2015 +0100
Revision:
381:c997e9717fb7
Parent:
nRF51GattClient.h@374:d57070489710 
Synchronized with git rev 094e94b9

Author: Rohit Grover

Merge branch 'master' of https://github.com/autopulated/nRF51822 into autopulated-master

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 362:6fa0d4d555f6 1 /* mbed Microcontroller Library
rgrover1 362:6fa0d4d555f6 2 * Copyright (c) 2006-2013 ARM Limited
rgrover1 362:6fa0d4d555f6 3 *
rgrover1 362:6fa0d4d555f6 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 362:6fa0d4d555f6 5 * you may not use this file except in compliance with the License.
rgrover1 362:6fa0d4d555f6 6 * You may obtain a copy of the License at
rgrover1 362:6fa0d4d555f6 7 *
rgrover1 362:6fa0d4d555f6 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 362:6fa0d4d555f6 9 *
rgrover1 362:6fa0d4d555f6 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 362:6fa0d4d555f6 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 362:6fa0d4d555f6 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 362:6fa0d4d555f6 13 * See the License for the specific language governing permissions and
rgrover1 362:6fa0d4d555f6 14 * limitations under the License.
rgrover1 362:6fa0d4d555f6 15 */
rgrover1 362:6fa0d4d555f6 16
rgrover1 362:6fa0d4d555f6 17 #ifndef __NRF51822_GATT_CLIENT_H__
rgrover1 362:6fa0d4d555f6 18 #define __NRF51822_GATT_CLIENT_H__
rgrover1 362:6fa0d4d555f6 19
rgrover1 362:6fa0d4d555f6 20 #include "ble/GattClient.h"
rgrover1 362:6fa0d4d555f6 21 #include "nRF51ServiceDiscovery.h"
rgrover1 362:6fa0d4d555f6 22
rgrover1 362:6fa0d4d555f6 23 class nRF51GattClient : public GattClient
rgrover1 362:6fa0d4d555f6 24 {
rgrover1 362:6fa0d4d555f6 25 public:
rgrover1 362:6fa0d4d555f6 26 static nRF51GattClient &getInstance();
rgrover1 362:6fa0d4d555f6 27
rgrover1 362:6fa0d4d555f6 28 /**
rgrover1 362:6fa0d4d555f6 29 * Launch service discovery. Once launched, service discovery will remain
rgrover1 362:6fa0d4d555f6 30 * active with callbacks being issued back into the application for matching
rgrover1 362:6fa0d4d555f6 31 * services/characteristics. isActive() can be used to determine status; and
rgrover1 362:6fa0d4d555f6 32 * a termination callback (if setup) will be invoked at the end. Service
rgrover1 362:6fa0d4d555f6 33 * discovery can be terminated prematurely if needed using terminate().
rgrover1 362:6fa0d4d555f6 34 *
rgrover1 362:6fa0d4d555f6 35 * @param connectionHandle
rgrover1 362:6fa0d4d555f6 36 * Handle for the connection with the peer.
rgrover1 362:6fa0d4d555f6 37 * @param sc
rgrover1 362:6fa0d4d555f6 38 * This is the application callback for matching service. Taken as
rgrover1 362:6fa0d4d555f6 39 * NULL by default. Note: service discovery may still be active
rgrover1 362:6fa0d4d555f6 40 * when this callback is issued; calling asynchronous BLE-stack
rgrover1 362:6fa0d4d555f6 41 * APIs from within this application callback might cause the
rgrover1 362:6fa0d4d555f6 42 * stack to abort service discovery. If this becomes an issue, it
rgrover1 362:6fa0d4d555f6 43 * may be better to make local copy of the discoveredService and
rgrover1 362:6fa0d4d555f6 44 * wait for service discovery to terminate before operating on the
rgrover1 362:6fa0d4d555f6 45 * service.
rgrover1 362:6fa0d4d555f6 46 * @param cc
rgrover1 362:6fa0d4d555f6 47 * This is the application callback for matching characteristic.
rgrover1 362:6fa0d4d555f6 48 * Taken as NULL by default. Note: service discovery may still be
rgrover1 362:6fa0d4d555f6 49 * active when this callback is issued; calling asynchronous
rgrover1 362:6fa0d4d555f6 50 * BLE-stack APIs from within this application callback might cause
rgrover1 362:6fa0d4d555f6 51 * the stack to abort service discovery. If this becomes an issue,
rgrover1 362:6fa0d4d555f6 52 * it may be better to make local copy of the discoveredCharacteristic
rgrover1 362:6fa0d4d555f6 53 * and wait for service discovery to terminate before operating on the
rgrover1 362:6fa0d4d555f6 54 * characteristic.
rgrover1 362:6fa0d4d555f6 55 * @param matchingServiceUUID
rgrover1 362:6fa0d4d555f6 56 * UUID based filter for specifying a service in which the application is
rgrover1 362:6fa0d4d555f6 57 * interested. By default it is set as the wildcard UUID_UNKNOWN,
rgrover1 362:6fa0d4d555f6 58 * in which case it matches all services. If characteristic-UUID
rgrover1 362:6fa0d4d555f6 59 * filter (below) is set to the wildcard value, then a service
rgrover1 362:6fa0d4d555f6 60 * callback will be invoked for the matching service (or for every
rgrover1 362:6fa0d4d555f6 61 * service if the service filter is a wildcard).
rgrover1 362:6fa0d4d555f6 62 * @param matchingCharacteristicUUIDIn
rgrover1 362:6fa0d4d555f6 63 * UUID based filter for specifying characteristic in which the application
rgrover1 362:6fa0d4d555f6 64 * is interested. By default it is set as the wildcard UUID_UKNOWN
rgrover1 362:6fa0d4d555f6 65 * to match against any characteristic. If both service-UUID
rgrover1 362:6fa0d4d555f6 66 * filter and characteristic-UUID filter are used with non- wildcard
rgrover1 362:6fa0d4d555f6 67 * values, then only a single characteristic callback is
rgrover1 362:6fa0d4d555f6 68 * invoked for the matching characteristic.
rgrover1 362:6fa0d4d555f6 69 *
rgrover1 362:6fa0d4d555f6 70 * @Note Using wildcard values for both service-UUID and characteristic-
rgrover1 362:6fa0d4d555f6 71 * UUID will result in complete service discovery--callbacks being
rgrover1 362:6fa0d4d555f6 72 * called for every service and characteristic.
rgrover1 362:6fa0d4d555f6 73 *
rgrover1 362:6fa0d4d555f6 74 * @return
rgrover1 362:6fa0d4d555f6 75 * BLE_ERROR_NONE if service discovery is launched successfully; else an appropriate error.
rgrover1 362:6fa0d4d555f6 76 */
rgrover1 362:6fa0d4d555f6 77 virtual ble_error_t launchServiceDiscovery(Gap::Handle_t connectionHandle,
rgrover1 362:6fa0d4d555f6 78 ServiceDiscovery::ServiceCallback_t sc = NULL,
rgrover1 362:6fa0d4d555f6 79 ServiceDiscovery::CharacteristicCallback_t cc = NULL,
rgrover1 362:6fa0d4d555f6 80 const UUID &matchingServiceUUID = UUID::ShortUUIDBytes_t(BLE_UUID_UNKNOWN),
rgrover1 362:6fa0d4d555f6 81 const UUID &matchingCharacteristicUUIDIn = UUID::ShortUUIDBytes_t(BLE_UUID_UNKNOWN));
rgrover1 362:6fa0d4d555f6 82
rgrover1 362:6fa0d4d555f6 83 virtual void onServiceDiscoveryTermination(ServiceDiscovery::TerminationCallback_t callback) {
rgrover1 362:6fa0d4d555f6 84 discovery.onTermination(callback);
rgrover1 362:6fa0d4d555f6 85 }
rgrover1 362:6fa0d4d555f6 86
rgrover1 362:6fa0d4d555f6 87 /**
rgrover1 362:6fa0d4d555f6 88 * Is service-discovery currently active?
rgrover1 362:6fa0d4d555f6 89 */
rgrover1 362:6fa0d4d555f6 90 virtual bool isServiceDiscoveryActive(void) const {
rgrover1 362:6fa0d4d555f6 91 return discovery.isActive();
rgrover1 362:6fa0d4d555f6 92 }
rgrover1 362:6fa0d4d555f6 93
rgrover1 362:6fa0d4d555f6 94 /**
rgrover1 362:6fa0d4d555f6 95 * Terminate an ongoing service-discovery. This should result in an
rgrover1 362:6fa0d4d555f6 96 * invocation of the TerminationCallback if service-discovery is active.
rgrover1 362:6fa0d4d555f6 97 */
rgrover1 362:6fa0d4d555f6 98 virtual void terminateServiceDiscovery(void) {
rgrover1 362:6fa0d4d555f6 99 discovery.terminate();
rgrover1 362:6fa0d4d555f6 100 }
rgrover1 362:6fa0d4d555f6 101
rgrover1 362:6fa0d4d555f6 102 virtual ble_error_t read(Gap::Handle_t connHandle, GattAttribute::Handle_t attributeHandle, uint16_t offset) const {
rgrover1 362:6fa0d4d555f6 103 uint32_t rc = sd_ble_gattc_read(connHandle, attributeHandle, offset);
rgrover1 362:6fa0d4d555f6 104 if (rc == NRF_SUCCESS) {
rgrover1 362:6fa0d4d555f6 105 return BLE_ERROR_NONE;
rgrover1 362:6fa0d4d555f6 106 }
rgrover1 362:6fa0d4d555f6 107 switch (rc) {
rgrover1 362:6fa0d4d555f6 108 case NRF_ERROR_BUSY:
rgrover1 362:6fa0d4d555f6 109 return BLE_STACK_BUSY;
rgrover1 362:6fa0d4d555f6 110 case BLE_ERROR_INVALID_CONN_HANDLE:
rgrover1 362:6fa0d4d555f6 111 case NRF_ERROR_INVALID_STATE:
rgrover1 362:6fa0d4d555f6 112 case NRF_ERROR_INVALID_ADDR:
rgrover1 362:6fa0d4d555f6 113 default:
rgrover1 362:6fa0d4d555f6 114 return BLE_ERROR_INVALID_STATE;
rgrover1 362:6fa0d4d555f6 115 }
rgrover1 362:6fa0d4d555f6 116 }
rgrover1 362:6fa0d4d555f6 117
rgrover1 362:6fa0d4d555f6 118 virtual ble_error_t write(GattClient::WriteOp_t cmd, Gap::Handle_t connHandle, GattAttribute::Handle_t attributeHandle, size_t length, const uint8_t *value) const {
rgrover1 362:6fa0d4d555f6 119 ble_gattc_write_params_t writeParams = { };
rgrover1 362:6fa0d4d555f6 120 writeParams.write_op = cmd;
rgrover1 362:6fa0d4d555f6 121 writeParams.handle = attributeHandle;
rgrover1 362:6fa0d4d555f6 122 writeParams.len = length;
rgrover1 362:6fa0d4d555f6 123 writeParams.p_value = const_cast<uint8_t *>(value);
rgrover1 362:6fa0d4d555f6 124
rgrover1 362:6fa0d4d555f6 125 uint32_t rc = sd_ble_gattc_write(connHandle, &writeParams);
rgrover1 362:6fa0d4d555f6 126 if (rc == NRF_SUCCESS) {
rgrover1 362:6fa0d4d555f6 127 return BLE_ERROR_NONE;
rgrover1 362:6fa0d4d555f6 128 }
rgrover1 362:6fa0d4d555f6 129 switch (rc) {
rgrover1 362:6fa0d4d555f6 130 case NRF_ERROR_BUSY:
rgrover1 362:6fa0d4d555f6 131 return BLE_STACK_BUSY;
rgrover1 362:6fa0d4d555f6 132 case BLE_ERROR_NO_TX_BUFFERS:
rgrover1 362:6fa0d4d555f6 133 return BLE_ERROR_NO_MEM;
rgrover1 362:6fa0d4d555f6 134 case BLE_ERROR_INVALID_CONN_HANDLE:
rgrover1 362:6fa0d4d555f6 135 case NRF_ERROR_INVALID_STATE:
rgrover1 362:6fa0d4d555f6 136 case NRF_ERROR_INVALID_ADDR:
rgrover1 362:6fa0d4d555f6 137 default:
rgrover1 362:6fa0d4d555f6 138 return BLE_ERROR_INVALID_STATE;
rgrover1 362:6fa0d4d555f6 139 }
rgrover1 362:6fa0d4d555f6 140 }
rgrover1 362:6fa0d4d555f6 141
rgrover1 362:6fa0d4d555f6 142 public:
rgrover1 362:6fa0d4d555f6 143 nRF51GattClient() : discovery(this) {
rgrover1 362:6fa0d4d555f6 144 /* empty */
rgrover1 362:6fa0d4d555f6 145 }
rgrover1 362:6fa0d4d555f6 146
rgrover1 362:6fa0d4d555f6 147 friend void bleGattcEventHandler(const ble_evt_t *p_ble_evt);
rgrover1 362:6fa0d4d555f6 148
rgrover1 362:6fa0d4d555f6 149 private:
rgrover1 362:6fa0d4d555f6 150 nRF51GattClient(const nRF51GattClient &);
rgrover1 362:6fa0d4d555f6 151 const nRF51GattClient& operator=(const nRF51GattClient &);
rgrover1 362:6fa0d4d555f6 152
rgrover1 362:6fa0d4d555f6 153 private:
rgrover1 362:6fa0d4d555f6 154 nRF51ServiceDiscovery discovery;
rgrover1 362:6fa0d4d555f6 155 };
rgrover1 362:6fa0d4d555f6 156
rgrover1 362:6fa0d4d555f6 157 #endif // ifndef __NRF51822_GATT_CLIENT_H__