Andrea Sortino / BLE_API

prova

Fork of BLE_API by Bluetooth Low Energy

ble/DiscoveredCharacteristic.h@1134:d540a48f650d, 2016-04-06 (annotated)

Committer:
vcoubard
Date:
Wed Apr 06 19:13:52 2016 +0100
Revision:
1134:d540a48f650d
Parent:
1131:692ddf04fc42
Child:
1135:22aada733dbd
Synchronized with git rev d363d7ee

Author: Rohit Grover

Merge branch 'develop'

Who changed what in which revision?

UserRevisionLine numberNew contents of line
vcoubard 1131:692ddf04fc42 1 /* mbed Microcontroller Library
vcoubard 1131:692ddf04fc42 2 * Copyright (c) 2006-2013 ARM Limited
vcoubard 1131:692ddf04fc42 3 *
vcoubard 1131:692ddf04fc42 4 * Licensed under the Apache License, Version 2.0 (the "License");
vcoubard 1131:692ddf04fc42 5 * you may not use this file except in compliance with the License.
vcoubard 1131:692ddf04fc42 6 * You may obtain a copy of the License at
vcoubard 1131:692ddf04fc42 7 *
vcoubard 1131:692ddf04fc42 8 * http://www.apache.org/licenses/LICENSE-2.0
vcoubard 1131:692ddf04fc42 9 *
vcoubard 1131:692ddf04fc42 10 * Unless required by applicable law or agreed to in writing, software
vcoubard 1131:692ddf04fc42 11 * distributed under the License is distributed on an "AS IS" BASIS,
vcoubard 1131:692ddf04fc42 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
vcoubard 1131:692ddf04fc42 13 * See the License for the specific language governing permissions and
vcoubard 1131:692ddf04fc42 14 * limitations under the License.
vcoubard 1131:692ddf04fc42 15 */
vcoubard 1131:692ddf04fc42 16
vcoubard 1131:692ddf04fc42 17 #ifndef __DISCOVERED_CHARACTERISTIC_H__
vcoubard 1131:692ddf04fc42 18 #define __DISCOVERED_CHARACTERISTIC_H__
vcoubard 1131:692ddf04fc42 19
vcoubard 1131:692ddf04fc42 20 #include "UUID.h"
vcoubard 1131:692ddf04fc42 21 #include "Gap.h"
vcoubard 1131:692ddf04fc42 22 #include "GattAttribute.h"
vcoubard 1131:692ddf04fc42 23 #include "GattClient.h"
vcoubard 1131:692ddf04fc42 24
vcoubard 1131:692ddf04fc42 25 /**
vcoubard 1131:692ddf04fc42 26 * Structure for holding information about the service and the characteristics
vcoubard 1131:692ddf04fc42 27 * found during the discovery process.
vcoubard 1131:692ddf04fc42 28 */
vcoubard 1131:692ddf04fc42 29 class DiscoveredCharacteristic {
vcoubard 1131:692ddf04fc42 30 public:
vcoubard 1131:692ddf04fc42 31 struct Properties_t {
vcoubard 1131:692ddf04fc42 32 uint8_t _broadcast :1; /**< Broadcasting the value permitted. */
vcoubard 1131:692ddf04fc42 33 uint8_t _read :1; /**< Reading the value permitted. */
vcoubard 1131:692ddf04fc42 34 uint8_t _writeWoResp :1; /**< Writing the value with Write Command permitted. */
vcoubard 1131:692ddf04fc42 35 uint8_t _write :1; /**< Writing the value with Write Request permitted. */
vcoubard 1131:692ddf04fc42 36 uint8_t _notify :1; /**< Notications of the value permitted. */
vcoubard 1131:692ddf04fc42 37 uint8_t _indicate :1; /**< Indications of the value permitted. */
vcoubard 1131:692ddf04fc42 38 uint8_t _authSignedWrite :1; /**< Writing the value with Signed Write Command permitted. */
vcoubard 1131:692ddf04fc42 39
vcoubard 1131:692ddf04fc42 40 public:
vcoubard 1131:692ddf04fc42 41 bool broadcast(void) const {return _broadcast; }
vcoubard 1131:692ddf04fc42 42 bool read(void) const {return _read; }
vcoubard 1131:692ddf04fc42 43 bool writeWoResp(void) const {return _writeWoResp; }
vcoubard 1131:692ddf04fc42 44 bool write(void) const {return _write; }
vcoubard 1131:692ddf04fc42 45 bool notify(void) const {return _notify; }
vcoubard 1131:692ddf04fc42 46 bool indicate(void) const {return _indicate; }
vcoubard 1131:692ddf04fc42 47 bool authSignedWrite(void) const {return _authSignedWrite;}
vcoubard 1131:692ddf04fc42 48
vcoubard 1131:692ddf04fc42 49 private:
vcoubard 1131:692ddf04fc42 50 operator uint8_t() const; /* Disallow implicit conversion into an integer. */
vcoubard 1131:692ddf04fc42 51 operator unsigned() const; /* Disallow implicit conversion into an integer. */
vcoubard 1131:692ddf04fc42 52 };
vcoubard 1131:692ddf04fc42 53
vcoubard 1131:692ddf04fc42 54 /**
vcoubard 1131:692ddf04fc42 55 * Structure for holding information about the service and the characteristics
vcoubard 1131:692ddf04fc42 56 * found during the discovery process.
vcoubard 1131:692ddf04fc42 57 */
vcoubard 1131:692ddf04fc42 58 struct DiscoveredDescriptor {
vcoubard 1131:692ddf04fc42 59 GattAttribute::Handle_t handle; /**< Descriptor Handle. */
vcoubard 1131:692ddf04fc42 60 UUID uuid; /**< Descriptor UUID. */
vcoubard 1131:692ddf04fc42 61 };
vcoubard 1131:692ddf04fc42 62
vcoubard 1131:692ddf04fc42 63 /**
vcoubard 1131:692ddf04fc42 64 * Callback type for when a characteristic descriptor is found during descriptor-
vcoubard 1131:692ddf04fc42 65 * discovery. The receiving function is passed in a pointer to a
vcoubard 1131:692ddf04fc42 66 * DiscoveredDescriptor object which will remain valid for the lifetime
vcoubard 1131:692ddf04fc42 67 * of the callback. Memory for this object is owned by the BLE_API eventing
vcoubard 1131:692ddf04fc42 68 * framework. The application can safely make a persistent shallow-copy of
vcoubard 1131:692ddf04fc42 69 * this object in order to work with the characteristic beyond the callback.
vcoubard 1131:692ddf04fc42 70 */
vcoubard 1131:692ddf04fc42 71 typedef void (*DescriptorCallback_t)(const DiscoveredDescriptor *);
vcoubard 1131:692ddf04fc42 72
vcoubard 1131:692ddf04fc42 73 /**
vcoubard 1131:692ddf04fc42 74 * Initiate (or continue) a read for the value attribute, optionally at a
vcoubard 1131:692ddf04fc42 75 * given offset. If the characteristic or descriptor to be read is longer
vcoubard 1131:692ddf04fc42 76 * than ATT_MTU - 1, this function must be called multiple times with
vcoubard 1131:692ddf04fc42 77 * appropriate offset to read the complete value.
vcoubard 1131:692ddf04fc42 78 *
vcoubard 1131:692ddf04fc42 79 * @return BLE_ERROR_NONE if a read has been initiated, or
vcoubard 1131:692ddf04fc42 80 * BLE_ERROR_INVALID_STATE if some internal state about the connection is invalid, or
vcoubard 1131:692ddf04fc42 81 * BLE_STACK_BUSY if some client procedure is already in progress, or
vcoubard 1131:692ddf04fc42 82 * BLE_ERROR_OPERATION_NOT_PERMITTED due to the characteristic's properties.
vcoubard 1131:692ddf04fc42 83 */
vcoubard 1131:692ddf04fc42 84 ble_error_t read(uint16_t offset = 0) const;
vcoubard 1131:692ddf04fc42 85
vcoubard 1131:692ddf04fc42 86 ble_error_t read(uint16_t offset, const GattClient::ReadCallback_t& onRead) const;
vcoubard 1131:692ddf04fc42 87
vcoubard 1131:692ddf04fc42 88 /**
vcoubard 1131:692ddf04fc42 89 * Perform a write without response procedure.
vcoubard 1131:692ddf04fc42 90 *
vcoubard 1131:692ddf04fc42 91 * @param length
vcoubard 1131:692ddf04fc42 92 * The amount of data being written.
vcoubard 1131:692ddf04fc42 93 * @param value
vcoubard 1131:692ddf04fc42 94 * The bytes being written.
vcoubard 1131:692ddf04fc42 95 *
vcoubard 1131:692ddf04fc42 96 * @note It is important to note that a write without response will generate
vcoubard 1131:692ddf04fc42 97 * an onDataSent() callback when the packet has been transmitted. There
vcoubard 1131:692ddf04fc42 98 * will be a BLE-stack specific limit to the number of pending
vcoubard 1131:692ddf04fc42 99 * writeWoResponse operations; the user may want to use the onDataSent()
vcoubard 1131:692ddf04fc42 100 * callback for flow-control.
vcoubard 1131:692ddf04fc42 101 *
vcoubard 1131:692ddf04fc42 102 * @retval BLE_ERROR_NONE Successfully started the Write procedure, or
vcoubard 1131:692ddf04fc42 103 * BLE_ERROR_INVALID_STATE if some internal state about the connection is invalid, or
vcoubard 1131:692ddf04fc42 104 * BLE_STACK_BUSY if some client procedure is already in progress, or
vcoubard 1131:692ddf04fc42 105 * BLE_ERROR_NO_MEM if there are no available buffers left to process the request, or
vcoubard 1131:692ddf04fc42 106 * BLE_ERROR_OPERATION_NOT_PERMITTED due to the characteristic's properties.
vcoubard 1131:692ddf04fc42 107 */
vcoubard 1131:692ddf04fc42 108 ble_error_t writeWoResponse(uint16_t length, const uint8_t *value) const;
vcoubard 1131:692ddf04fc42 109
vcoubard 1131:692ddf04fc42 110 /**
vcoubard 1131:692ddf04fc42 111 * Initiate a GATT Characteristic Descriptor Discovery procedure for descriptors within this characteristic.
vcoubard 1131:692ddf04fc42 112 *
vcoubard 1131:692ddf04fc42 113 * @param callback
vcoubard 1131:692ddf04fc42 114 * @param matchingUUID
vcoubard 1131:692ddf04fc42 115 * Filter for descriptors. Defaults to wildcard which will discover all descriptors.
vcoubard 1131:692ddf04fc42 116 *
vcoubard 1131:692ddf04fc42 117 * @return BLE_ERROR_NONE if descriptor discovery is launched successfully; else an appropriate error.
vcoubard 1131:692ddf04fc42 118 */
vcoubard 1131:692ddf04fc42 119 ble_error_t discoverDescriptors(DescriptorCallback_t callback, const UUID &matchingUUID = UUID::ShortUUIDBytes_t(BLE_UUID_UNKNOWN)) const;
vcoubard 1131:692ddf04fc42 120
vcoubard 1131:692ddf04fc42 121 /**
vcoubard 1131:692ddf04fc42 122 * Perform a write procedure.
vcoubard 1131:692ddf04fc42 123 *
vcoubard 1131:692ddf04fc42 124 * @param length
vcoubard 1131:692ddf04fc42 125 * The amount of data being written.
vcoubard 1131:692ddf04fc42 126 * @param value
vcoubard 1131:692ddf04fc42 127 * The bytes being written.
vcoubard 1131:692ddf04fc42 128 *
vcoubard 1131:692ddf04fc42 129 * @note It is important to note that a write will generate
vcoubard 1131:692ddf04fc42 130 * an onDataWritten() callback when the peer acknowledges the request.
vcoubard 1131:692ddf04fc42 131 *
vcoubard 1131:692ddf04fc42 132 * @retval BLE_ERROR_NONE Successfully started the Write procedure, or
vcoubard 1131:692ddf04fc42 133 * BLE_ERROR_INVALID_STATE if some internal state about the connection is invalid, or
vcoubard 1131:692ddf04fc42 134 * BLE_STACK_BUSY if some client procedure is already in progress, or
vcoubard 1131:692ddf04fc42 135 * BLE_ERROR_NO_MEM if there are no available buffers left to process the request, or
vcoubard 1131:692ddf04fc42 136 * BLE_ERROR_OPERATION_NOT_PERMITTED due to the characteristic's properties.
vcoubard 1131:692ddf04fc42 137 */
vcoubard 1131:692ddf04fc42 138 ble_error_t write(uint16_t length, const uint8_t *value) const;
vcoubard 1131:692ddf04fc42 139
vcoubard 1134:d540a48f650d 140 /**
vcoubard 1131:692ddf04fc42 141 * Same as above but register the callback wich will be called once the data has been written
vcoubard 1131:692ddf04fc42 142 */
vcoubard 1131:692ddf04fc42 143 ble_error_t write(uint16_t length, const uint8_t *value, const GattClient::WriteCallback_t& onRead) const;
vcoubard 1131:692ddf04fc42 144
vcoubard 1134:d540a48f650d 145 void setupLongUUID(UUID::LongUUIDBytes_t longUUID, UUID::ByteOrder_t order = UUID::MSB) {
vcoubard 1134:d540a48f650d 146 uuid.setupLong(longUUID, order);
vcoubard 1131:692ddf04fc42 147 }
vcoubard 1131:692ddf04fc42 148
vcoubard 1131:692ddf04fc42 149 public:
vcoubard 1131:692ddf04fc42 150 const UUID& getUUID(void) const {
vcoubard 1131:692ddf04fc42 151 return uuid;
vcoubard 1131:692ddf04fc42 152 }
vcoubard 1131:692ddf04fc42 153
vcoubard 1131:692ddf04fc42 154 const Properties_t& getProperties(void) const {
vcoubard 1131:692ddf04fc42 155 return props;
vcoubard 1131:692ddf04fc42 156 }
vcoubard 1131:692ddf04fc42 157
vcoubard 1131:692ddf04fc42 158 const GattAttribute::Handle_t& getDeclHandle(void) const {
vcoubard 1131:692ddf04fc42 159 return declHandle;
vcoubard 1131:692ddf04fc42 160 }
vcoubard 1131:692ddf04fc42 161 const GattAttribute::Handle_t& getValueHandle(void) const {
vcoubard 1131:692ddf04fc42 162 return valueHandle;
vcoubard 1131:692ddf04fc42 163 }
vcoubard 1131:692ddf04fc42 164
vcoubard 1131:692ddf04fc42 165 public:
vcoubard 1131:692ddf04fc42 166 DiscoveredCharacteristic() : gattc(NULL),
vcoubard 1131:692ddf04fc42 167 uuid(UUID::ShortUUIDBytes_t(0)),
vcoubard 1131:692ddf04fc42 168 props(),
vcoubard 1131:692ddf04fc42 169 declHandle(GattAttribute::INVALID_HANDLE),
vcoubard 1131:692ddf04fc42 170 valueHandle(GattAttribute::INVALID_HANDLE) {
vcoubard 1131:692ddf04fc42 171 /* empty */
vcoubard 1131:692ddf04fc42 172 }
vcoubard 1131:692ddf04fc42 173
vcoubard 1131:692ddf04fc42 174 protected:
vcoubard 1131:692ddf04fc42 175 GattClient *gattc;
vcoubard 1131:692ddf04fc42 176
vcoubard 1131:692ddf04fc42 177 protected:
vcoubard 1131:692ddf04fc42 178 UUID uuid;
vcoubard 1131:692ddf04fc42 179 Properties_t props;
vcoubard 1131:692ddf04fc42 180 GattAttribute::Handle_t declHandle;
vcoubard 1131:692ddf04fc42 181 GattAttribute::Handle_t valueHandle;
vcoubard 1131:692ddf04fc42 182
vcoubard 1131:692ddf04fc42 183 Gap::Handle_t connHandle;
vcoubard 1131:692ddf04fc42 184 };
vcoubard 1131:692ddf04fc42 185
rgrover1 716:11b41f651697 186 #endif /*__DISCOVERED_CHARACTERISTIC_H__*/