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nRF51GattClient.h@337:3d8b3bfe22e1, 2015-06-19 (annotated)

Committer:
rgrover1
Date:
Fri Jun 19 15:55:33 2015 +0100
Revision:
337:3d8b3bfe22e1
Parent:
334:5dcd58729c5b
Child:
339:e5e2157e8b44
Synchronized with git rev 16137b58

Author: Rohit Grover

we now have a working nRFGattClient::write()

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 328:f3aa0fddaa79 1 /* mbed Microcontroller Library
rgrover1 328:f3aa0fddaa79 2 * Copyright (c) 2006-2013 ARM Limited
rgrover1 328:f3aa0fddaa79 3 *
rgrover1 328:f3aa0fddaa79 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 328:f3aa0fddaa79 5 * you may not use this file except in compliance with the License.
rgrover1 328:f3aa0fddaa79 6 * You may obtain a copy of the License at
rgrover1 328:f3aa0fddaa79 7 *
rgrover1 328:f3aa0fddaa79 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 328:f3aa0fddaa79 9 *
rgrover1 328:f3aa0fddaa79 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 328:f3aa0fddaa79 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 328:f3aa0fddaa79 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 328:f3aa0fddaa79 13 * See the License for the specific language governing permissions and
rgrover1 328:f3aa0fddaa79 14 * limitations under the License.
rgrover1 328:f3aa0fddaa79 15 */
rgrover1 328:f3aa0fddaa79 16
rgrover1 328:f3aa0fddaa79 17 #ifndef __NRF51822_GATT_CLIENT_H__
rgrover1 328:f3aa0fddaa79 18 #define __NRF51822_GATT_CLIENT_H__
rgrover1 328:f3aa0fddaa79 19
rgrover1 328:f3aa0fddaa79 20 #include "GattClient.h"
rgrover1 331:352bc4a36ea0 21 #include "nRFServiceDiscovery.h"
rgrover1 328:f3aa0fddaa79 22
rgrover1 328:f3aa0fddaa79 23 class nRF51GattClient : public GattClient
rgrover1 328:f3aa0fddaa79 24 {
rgrover1 328:f3aa0fddaa79 25 public:
rgrover1 328:f3aa0fddaa79 26 static nRF51GattClient &getInstance();
rgrover1 328:f3aa0fddaa79 27
rgrover1 332:b054000833d4 28 /**
rgrover1 332:b054000833d4 29 * Launch service discovery. Once launched, service discovery will remain
rgrover1 332:b054000833d4 30 * active with callbacks being issued back into the application for matching
rgrover1 332:b054000833d4 31 * services/characteristics. isActive() can be used to determine status; and
rgrover1 332:b054000833d4 32 * a termination callback (if setup) will be invoked at the end. Service
rgrover1 332:b054000833d4 33 * discovery can be terminated prematurely if needed using terminate().
rgrover1 332:b054000833d4 34 *
rgrover1 332:b054000833d4 35 * @param connectionHandle
rgrover1 332:b054000833d4 36 * Handle for the connection with the peer.
rgrover1 332:b054000833d4 37 * @param sc
rgrover1 332:b054000833d4 38 * This is the application callback for matching service. Taken as
rgrover1 332:b054000833d4 39 * NULL by default. Note: service discovery may still be active
rgrover1 332:b054000833d4 40 * when this callback is issued; calling asynchronous BLE-stack
rgrover1 332:b054000833d4 41 * APIs from within this application callback might cause the
rgrover1 332:b054000833d4 42 * stack to abort service discovery. If this becomes an issue, it
rgrover1 332:b054000833d4 43 * may be better to make local copy of the discoveredService and
rgrover1 332:b054000833d4 44 * wait for service discovery to terminate before operating on the
rgrover1 332:b054000833d4 45 * service.
rgrover1 332:b054000833d4 46 * @param cc
rgrover1 332:b054000833d4 47 * This is the application callback for matching characteristic.
rgrover1 332:b054000833d4 48 * Taken as NULL by default. Note: service discovery may still be
rgrover1 332:b054000833d4 49 * active when this callback is issued; calling asynchronous
rgrover1 332:b054000833d4 50 * BLE-stack APIs from within this application callback might cause
rgrover1 332:b054000833d4 51 * the stack to abort service discovery. If this becomes an issue,
rgrover1 332:b054000833d4 52 * it may be better to make local copy of the discoveredCharacteristic
rgrover1 332:b054000833d4 53 * and wait for service discovery to terminate before operating on the
rgrover1 332:b054000833d4 54 * characteristic.
rgrover1 332:b054000833d4 55 * @param matchingServiceUUID
rgrover1 332:b054000833d4 56 * UUID based filter for specifying a service in which the application is
rgrover1 332:b054000833d4 57 * interested. By default it is set as the wildcard UUID_UNKNOWN,
rgrover1 332:b054000833d4 58 * in which case it matches all services. If characteristic-UUID
rgrover1 332:b054000833d4 59 * filter (below) is set to the wildcard value, then a service
rgrover1 332:b054000833d4 60 * callback will be invoked for the matching service (or for every
rgrover1 332:b054000833d4 61 * service if the service filter is a wildcard).
rgrover1 332:b054000833d4 62 * @param matchingCharacteristicUUIDIn
rgrover1 332:b054000833d4 63 * UUID based filter for specifying characteristic in which the application
rgrover1 332:b054000833d4 64 * is interested. By default it is set as the wildcard UUID_UKNOWN
rgrover1 332:b054000833d4 65 * to match against any characteristic. If both service-UUID
rgrover1 332:b054000833d4 66 * filter and characteristic-UUID filter are used with non- wildcard
rgrover1 332:b054000833d4 67 * values, then only a single characteristic callback is
rgrover1 332:b054000833d4 68 * invoked for the matching characteristic.
rgrover1 332:b054000833d4 69 *
rgrover1 332:b054000833d4 70 * @Note Using wildcard values for both service-UUID and characteristic-
rgrover1 332:b054000833d4 71 * UUID will result in complete service discovery--callbacks being
rgrover1 332:b054000833d4 72 * called for every service and characteristic.
rgrover1 332:b054000833d4 73 *
rgrover1 332:b054000833d4 74 * @return
rgrover1 332:b054000833d4 75 * BLE_ERROR_NONE if service discovery is launched successfully; else an appropriate error.
rgrover1 332:b054000833d4 76 */
rgrover1 332:b054000833d4 77 virtual ble_error_t launchServiceDiscovery(Gap::Handle_t connectionHandle,
rgrover1 332:b054000833d4 78 ServiceDiscovery::ServiceCallback_t sc = NULL,
rgrover1 332:b054000833d4 79 ServiceDiscovery::CharacteristicCallback_t cc = NULL,
rgrover1 332:b054000833d4 80 const UUID &matchingServiceUUID = UUID::ShortUUIDBytes_t(BLE_UUID_UNKNOWN),
rgrover1 332:b054000833d4 81 const UUID &matchingCharacteristicUUIDIn = UUID::ShortUUIDBytes_t(BLE_UUID_UNKNOWN));
rgrover1 332:b054000833d4 82
rgrover1 332:b054000833d4 83 virtual void onServiceDiscoveryTermination(ServiceDiscovery::TerminationCallback_t callback) {
rgrover1 332:b054000833d4 84 discovery.onTermination(callback);
rgrover1 332:b054000833d4 85 }
rgrover1 332:b054000833d4 86
rgrover1 332:b054000833d4 87 /**
rgrover1 332:b054000833d4 88 * Is service-discovery currently active?
rgrover1 332:b054000833d4 89 */
rgrover1 332:b054000833d4 90 virtual bool isServiceDiscoveryActive(void) const {
rgrover1 332:b054000833d4 91 return discovery.isActive();
rgrover1 332:b054000833d4 92 }
rgrover1 332:b054000833d4 93
rgrover1 332:b054000833d4 94 /**
rgrover1 332:b054000833d4 95 * Terminate an ongoing service-discovery. This should result in an
rgrover1 332:b054000833d4 96 * invocation of the TerminationCallback if service-discovery is active.
rgrover1 332:b054000833d4 97 */
rgrover1 332:b054000833d4 98 virtual void terminateServiceDiscovery(void) {
rgrover1 332:b054000833d4 99 discovery.terminate();
rgrover1 332:b054000833d4 100 }
rgrover1 332:b054000833d4 101
rgrover1 329:d11ef9cc041b 102 virtual ble_error_t read(Gap::Handle_t connHandle, GattAttribute::Handle_t attributeHandle, uint16_t offset) const {
rgrover1 329:d11ef9cc041b 103 uint32_t rc = sd_ble_gattc_read(connHandle, attributeHandle, offset);
rgrover1 329:d11ef9cc041b 104 if (rc == NRF_SUCCESS) {
rgrover1 329:d11ef9cc041b 105 return BLE_ERROR_NONE;
rgrover1 329:d11ef9cc041b 106 }
rgrover1 329:d11ef9cc041b 107 switch (rc) {
rgrover1 329:d11ef9cc041b 108 case NRF_ERROR_BUSY:
rgrover1 329:d11ef9cc041b 109 return BLE_STACK_BUSY;
rgrover1 329:d11ef9cc041b 110 case BLE_ERROR_INVALID_CONN_HANDLE:
rgrover1 329:d11ef9cc041b 111 case NRF_ERROR_INVALID_STATE:
rgrover1 329:d11ef9cc041b 112 case NRF_ERROR_INVALID_ADDR:
rgrover1 329:d11ef9cc041b 113 default:
rgrover1 329:d11ef9cc041b 114 return BLE_ERROR_INVALID_STATE;
rgrover1 329:d11ef9cc041b 115 }
rgrover1 329:d11ef9cc041b 116 }
rgrover1 329:d11ef9cc041b 117
rgrover1 337:3d8b3bfe22e1 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 337:3d8b3bfe22e1 119 ble_gattc_write_params_t writeParams = {
rgrover1 337:3d8b3bfe22e1 120 .write_op = cmd,
rgrover1 337:3d8b3bfe22e1 121 // .flags = 0,
rgrover1 337:3d8b3bfe22e1 122 .handle = attributeHandle,
rgrover1 337:3d8b3bfe22e1 123 .offset = 0,
rgrover1 337:3d8b3bfe22e1 124 .len = length,
rgrover1 337:3d8b3bfe22e1 125 .p_value = const_cast<uint8_t *>(value),
rgrover1 337:3d8b3bfe22e1 126 };
rgrover1 337:3d8b3bfe22e1 127
rgrover1 337:3d8b3bfe22e1 128 uint32_t rc = sd_ble_gattc_write(connHandle, &writeParams);
rgrover1 337:3d8b3bfe22e1 129 if (rc == NRF_SUCCESS) {
rgrover1 337:3d8b3bfe22e1 130 return BLE_ERROR_NONE;
rgrover1 337:3d8b3bfe22e1 131 }
rgrover1 337:3d8b3bfe22e1 132 switch (rc) {
rgrover1 337:3d8b3bfe22e1 133 case NRF_ERROR_BUSY:
rgrover1 337:3d8b3bfe22e1 134 return BLE_STACK_BUSY;
rgrover1 337:3d8b3bfe22e1 135 case BLE_ERROR_NO_TX_BUFFERS:
rgrover1 337:3d8b3bfe22e1 136 return BLE_ERROR_NO_MEM;
rgrover1 337:3d8b3bfe22e1 137 case BLE_ERROR_INVALID_CONN_HANDLE:
rgrover1 337:3d8b3bfe22e1 138 case NRF_ERROR_INVALID_STATE:
rgrover1 337:3d8b3bfe22e1 139 case NRF_ERROR_INVALID_ADDR:
rgrover1 337:3d8b3bfe22e1 140 default:
rgrover1 337:3d8b3bfe22e1 141 return BLE_ERROR_INVALID_STATE;
rgrover1 337:3d8b3bfe22e1 142 }
rgrover1 332:b054000833d4 143 }
rgrover1 328:f3aa0fddaa79 144
rgrover1 328:f3aa0fddaa79 145 public:
rgrover1 333:8eedcd324853 146 nRF51GattClient() : discovery(this) {
rgrover1 328:f3aa0fddaa79 147 /* empty */
rgrover1 328:f3aa0fddaa79 148 }
rgrover1 328:f3aa0fddaa79 149
rgrover1 332:b054000833d4 150 friend void bleGattcEventHandler(const ble_evt_t *p_ble_evt);
rgrover1 332:b054000833d4 151
rgrover1 328:f3aa0fddaa79 152 private:
rgrover1 328:f3aa0fddaa79 153 nRF51GattClient(const nRF51GattClient &);
rgrover1 328:f3aa0fddaa79 154 const nRF51GattClient& operator=(const nRF51GattClient &);
rgrover1 331:352bc4a36ea0 155
rgrover1 331:352bc4a36ea0 156 private:
rgrover1 331:352bc4a36ea0 157 nRFServiceDiscovery discovery;
rgrover1 328:f3aa0fddaa79 158 };
rgrover1 328:f3aa0fddaa79 159
rgrover1 328:f3aa0fddaa79 160 #endif // ifndef __NRF51822_GATT_CLIENT_H__