Cristi Stoican
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Bluetooth Low Energy
ble/GattServer.h@1131:692ddf04fc42, 2016-04-06 (annotated)
- Committer:
- vcoubard
- Date:
- Wed Apr 06 19:13:46 2016 +0100
- Revision:
- 1131:692ddf04fc42
- Parent:
- 1090:148d8b9b56a5
- Child:
- 1135:22aada733dbd
Synchronized with git rev 13bf70b6
Author: Rohit Grover
Release 2.1.5
=============
A minor release to separate the concept of minlen and len in
GattCharacteristic. Also contains some improvements to documentation.
Who changed what in which revision?
| User | Revision | Line number | New 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 __GATT_SERVER_H__ |
| vcoubard | 1131:692ddf04fc42 | 18 | #define __GATT_SERVER_H__ |
| vcoubard | 1131:692ddf04fc42 | 19 | |
| vcoubard | 1131:692ddf04fc42 | 20 | #include "Gap.h" |
| vcoubard | 1131:692ddf04fc42 | 21 | #include "GattService.h" |
| vcoubard | 1131:692ddf04fc42 | 22 | #include "GattAttribute.h" |
| vcoubard | 1131:692ddf04fc42 | 23 | #include "GattServerEvents.h" |
| vcoubard | 1131:692ddf04fc42 | 24 | #include "GattCallbackParamTypes.h" |
| vcoubard | 1131:692ddf04fc42 | 25 | #include "CallChainOfFunctionPointersWithContext.h" |
| vcoubard | 1131:692ddf04fc42 | 26 | |
| vcoubard | 1131:692ddf04fc42 | 27 | class GattServer { |
| vcoubard | 1131:692ddf04fc42 | 28 | public: |
| vcoubard | 1131:692ddf04fc42 | 29 | |
| vcoubard | 1131:692ddf04fc42 | 30 | /* Event callback handlers. */ |
| vcoubard | 1131:692ddf04fc42 | 31 | typedef FunctionPointerWithContext<unsigned> DataSentCallback_t; |
| vcoubard | 1131:692ddf04fc42 | 32 | typedef CallChainOfFunctionPointersWithContext<unsigned> DataSentCallbackChain_t; |
| vcoubard | 1131:692ddf04fc42 | 33 | |
| vcoubard | 1131:692ddf04fc42 | 34 | typedef FunctionPointerWithContext<const GattWriteCallbackParams*> DataWrittenCallback_t; |
| vcoubard | 1131:692ddf04fc42 | 35 | typedef CallChainOfFunctionPointersWithContext<const GattWriteCallbackParams*> DataWrittenCallbackChain_t; |
| vcoubard | 1131:692ddf04fc42 | 36 | |
| vcoubard | 1131:692ddf04fc42 | 37 | typedef FunctionPointerWithContext<const GattReadCallbackParams*> DataReadCallback_t; |
| vcoubard | 1131:692ddf04fc42 | 38 | typedef CallChainOfFunctionPointersWithContext<const GattReadCallbackParams *> DataReadCallbackChain_t; |
| vcoubard | 1131:692ddf04fc42 | 39 | |
| vcoubard | 1131:692ddf04fc42 | 40 | typedef FunctionPointerWithContext<GattAttribute::Handle_t> EventCallback_t; |
| vcoubard | 1131:692ddf04fc42 | 41 | |
| vcoubard | 1131:692ddf04fc42 | 42 | protected: |
| vcoubard | 1131:692ddf04fc42 | 43 | GattServer() : |
| vcoubard | 1131:692ddf04fc42 | 44 | serviceCount(0), |
| vcoubard | 1131:692ddf04fc42 | 45 | characteristicCount(0), |
| vcoubard | 1131:692ddf04fc42 | 46 | dataSentCallChain(), |
| vcoubard | 1131:692ddf04fc42 | 47 | dataWrittenCallChain(), |
| vcoubard | 1131:692ddf04fc42 | 48 | dataReadCallChain(), |
| vcoubard | 1131:692ddf04fc42 | 49 | updatesEnabledCallback(NULL), |
| vcoubard | 1131:692ddf04fc42 | 50 | updatesDisabledCallback(NULL), |
| vcoubard | 1131:692ddf04fc42 | 51 | confirmationReceivedCallback(NULL) { |
| vcoubard | 1131:692ddf04fc42 | 52 | /* empty */ |
| vcoubard | 1131:692ddf04fc42 | 53 | } |
| vcoubard | 1131:692ddf04fc42 | 54 | |
| vcoubard | 1131:692ddf04fc42 | 55 | /* |
| vcoubard | 1131:692ddf04fc42 | 56 | * The following functions are meant to be overridden in the platform-specific sub-class. |
| vcoubard | 1131:692ddf04fc42 | 57 | */ |
| vcoubard | 1131:692ddf04fc42 | 58 | public: |
| vcoubard | 1131:692ddf04fc42 | 59 | |
| vcoubard | 1131:692ddf04fc42 | 60 | /** |
| vcoubard | 1131:692ddf04fc42 | 61 | * Add a service declaration to the local server ATT table. Also add the |
| vcoubard | 1131:692ddf04fc42 | 62 | * characteristics contained within. |
| vcoubard | 1131:692ddf04fc42 | 63 | */ |
| vcoubard | 1131:692ddf04fc42 | 64 | virtual ble_error_t addService(GattService &service) { |
| vcoubard | 1131:692ddf04fc42 | 65 | /* Avoid compiler warnings about unused variables. */ |
| vcoubard | 1131:692ddf04fc42 | 66 | (void)service; |
| vcoubard | 1131:692ddf04fc42 | 67 | |
| vcoubard | 1131:692ddf04fc42 | 68 | return BLE_ERROR_NOT_IMPLEMENTED; /* Requesting action from porters: override this API if this capability is supported. */ |
| vcoubard | 1131:692ddf04fc42 | 69 | } |
| vcoubard | 1131:692ddf04fc42 | 70 | |
| vcoubard | 1131:692ddf04fc42 | 71 | /** |
| vcoubard | 1131:692ddf04fc42 | 72 | * Read the value of a characteristic from the local GATT server. |
| vcoubard | 1131:692ddf04fc42 | 73 | * @param[in] attributeHandle |
| vcoubard | 1131:692ddf04fc42 | 74 | * Attribute handle for the value attribute of the characteristic. |
| vcoubard | 1131:692ddf04fc42 | 75 | * @param[out] buffer |
| vcoubard | 1131:692ddf04fc42 | 76 | * A buffer to hold the value being read. |
| vcoubard | 1131:692ddf04fc42 | 77 | * @param[in/out] lengthP |
| vcoubard | 1131:692ddf04fc42 | 78 | * Length of the buffer being supplied. If the attribute |
| vcoubard | 1131:692ddf04fc42 | 79 | * value is longer than the size of the supplied buffer, |
| vcoubard | 1131:692ddf04fc42 | 80 | * this variable will hold upon return the total attribute value length |
| vcoubard | 1131:692ddf04fc42 | 81 | * (excluding offset). The application may use this |
| vcoubard | 1131:692ddf04fc42 | 82 | * information to allocate a suitable buffer size. |
| vcoubard | 1131:692ddf04fc42 | 83 | * |
| vcoubard | 1131:692ddf04fc42 | 84 | * @return BLE_ERROR_NONE if a value was read successfully into the buffer. |
| vcoubard | 1131:692ddf04fc42 | 85 | */ |
| vcoubard | 1131:692ddf04fc42 | 86 | virtual ble_error_t read(GattAttribute::Handle_t attributeHandle, uint8_t buffer[], uint16_t *lengthP) { |
| vcoubard | 1131:692ddf04fc42 | 87 | /* Avoid compiler warnings about unused variables. */ |
| vcoubard | 1131:692ddf04fc42 | 88 | (void)attributeHandle; |
| vcoubard | 1131:692ddf04fc42 | 89 | (void)buffer; |
| vcoubard | 1131:692ddf04fc42 | 90 | (void)lengthP; |
| vcoubard | 1131:692ddf04fc42 | 91 | |
| vcoubard | 1131:692ddf04fc42 | 92 | return BLE_ERROR_NOT_IMPLEMENTED; /* Requesting action from porters: override this API if this capability is supported. */ |
| vcoubard | 1131:692ddf04fc42 | 93 | } |
| vcoubard | 1131:692ddf04fc42 | 94 | |
| vcoubard | 1131:692ddf04fc42 | 95 | /** |
| vcoubard | 1131:692ddf04fc42 | 96 | * Read the value of a characteristic from the local GATT server. |
| vcoubard | 1131:692ddf04fc42 | 97 | * @param[in] connectionHandle |
| vcoubard | 1131:692ddf04fc42 | 98 | * Connection handle. |
| vcoubard | 1131:692ddf04fc42 | 99 | * @param[in] attributeHandle |
| vcoubard | 1131:692ddf04fc42 | 100 | * Attribute handle for the value attribute of the characteristic. |
| vcoubard | 1131:692ddf04fc42 | 101 | * @param[out] buffer |
| vcoubard | 1131:692ddf04fc42 | 102 | * A buffer to hold the value being read. |
| vcoubard | 1131:692ddf04fc42 | 103 | * @param[in/out] lengthP |
| vcoubard | 1131:692ddf04fc42 | 104 | * Length of the buffer being supplied. If the attribute |
| vcoubard | 1131:692ddf04fc42 | 105 | * value is longer than the size of the supplied buffer, |
| vcoubard | 1131:692ddf04fc42 | 106 | * this variable will hold upon return the total attribute value length |
| vcoubard | 1131:692ddf04fc42 | 107 | * (excluding offset). The application may use this |
| vcoubard | 1131:692ddf04fc42 | 108 | * information to allocate a suitable buffer size. |
| vcoubard | 1131:692ddf04fc42 | 109 | * |
| vcoubard | 1131:692ddf04fc42 | 110 | * @return BLE_ERROR_NONE if a value was read successfully into the buffer. |
| vcoubard | 1131:692ddf04fc42 | 111 | * |
| vcoubard | 1131:692ddf04fc42 | 112 | * @note This API is a version of the above, with an additional connection handle |
| vcoubard | 1131:692ddf04fc42 | 113 | * parameter to allow fetches for connection-specific multivalued |
| vcoubard | 1131:692ddf04fc42 | 114 | * attributes (such as the CCCDs). |
| vcoubard | 1131:692ddf04fc42 | 115 | */ |
| vcoubard | 1131:692ddf04fc42 | 116 | virtual ble_error_t read(Gap::Handle_t connectionHandle, GattAttribute::Handle_t attributeHandle, uint8_t *buffer, uint16_t *lengthP) { |
| vcoubard | 1131:692ddf04fc42 | 117 | /* Avoid compiler warnings about unused variables. */ |
| vcoubard | 1131:692ddf04fc42 | 118 | (void)connectionHandle; |
| vcoubard | 1131:692ddf04fc42 | 119 | (void)attributeHandle; |
| vcoubard | 1131:692ddf04fc42 | 120 | (void)buffer; |
| vcoubard | 1131:692ddf04fc42 | 121 | (void)lengthP; |
| vcoubard | 1131:692ddf04fc42 | 122 | |
| vcoubard | 1131:692ddf04fc42 | 123 | return BLE_ERROR_NOT_IMPLEMENTED; /* Requesting action from porters: override this API if this capability is supported. */ |
| vcoubard | 1131:692ddf04fc42 | 124 | } |
| vcoubard | 1131:692ddf04fc42 | 125 | |
| vcoubard | 1131:692ddf04fc42 | 126 | /** |
| vcoubard | 1131:692ddf04fc42 | 127 | * Update the value of a characteristic on the local GATT server. |
| vcoubard | 1131:692ddf04fc42 | 128 | * |
| vcoubard | 1131:692ddf04fc42 | 129 | * @param[in] attributeHandle |
| vcoubard | 1131:692ddf04fc42 | 130 | * Handle for the value attribute of the characteristic. |
| vcoubard | 1131:692ddf04fc42 | 131 | * @param[in] value |
| vcoubard | 1131:692ddf04fc42 | 132 | * A pointer to a buffer holding the new value. |
| vcoubard | 1131:692ddf04fc42 | 133 | * @param[in] size |
| vcoubard | 1131:692ddf04fc42 | 134 | * Size of the new value (in bytes). |
| vcoubard | 1131:692ddf04fc42 | 135 | * @param[in] localOnly |
| vcoubard | 1131:692ddf04fc42 | 136 | * Should this update be kept on the local |
| vcoubard | 1131:692ddf04fc42 | 137 | * GATT server regardless of the state of the |
| vcoubard | 1131:692ddf04fc42 | 138 | * notify/indicate flag in the CCCD for this |
| vcoubard | 1131:692ddf04fc42 | 139 | * Characteristic? If set to true, no notification |
| vcoubard | 1131:692ddf04fc42 | 140 | * or indication is generated. |
| vcoubard | 1131:692ddf04fc42 | 141 | * |
| vcoubard | 1131:692ddf04fc42 | 142 | * @return BLE_ERROR_NONE if we have successfully set the value of the attribute. |
| vcoubard | 1131:692ddf04fc42 | 143 | */ |
| vcoubard | 1131:692ddf04fc42 | 144 | virtual ble_error_t write(GattAttribute::Handle_t attributeHandle, const uint8_t *value, uint16_t size, bool localOnly = false) { |
| vcoubard | 1131:692ddf04fc42 | 145 | /* Avoid compiler warnings about unused variables. */ |
| vcoubard | 1131:692ddf04fc42 | 146 | (void)attributeHandle; |
| vcoubard | 1131:692ddf04fc42 | 147 | (void)value; |
| vcoubard | 1131:692ddf04fc42 | 148 | (void)size; |
| vcoubard | 1131:692ddf04fc42 | 149 | (void)localOnly; |
| vcoubard | 1131:692ddf04fc42 | 150 | |
| vcoubard | 1131:692ddf04fc42 | 151 | return BLE_ERROR_NOT_IMPLEMENTED; /* Requesting action from porters: override this API if this capability is supported. */ |
| vcoubard | 1131:692ddf04fc42 | 152 | } |
| vcoubard | 1131:692ddf04fc42 | 153 | |
| vcoubard | 1131:692ddf04fc42 | 154 | /** |
| vcoubard | 1131:692ddf04fc42 | 155 | * Update the value of a characteristic on the local GATT server. A version |
| vcoubard | 1131:692ddf04fc42 | 156 | * of the same as the above, with a connection handle parameter to allow updates |
| vcoubard | 1131:692ddf04fc42 | 157 | * for connection-specific multivalued attributes (such as the CCCDs). |
| vcoubard | 1131:692ddf04fc42 | 158 | * |
| vcoubard | 1131:692ddf04fc42 | 159 | * @param[in] connectionHandle |
| vcoubard | 1131:692ddf04fc42 | 160 | * Connection handle. |
| vcoubard | 1131:692ddf04fc42 | 161 | * @param[in] attributeHandle |
| vcoubard | 1131:692ddf04fc42 | 162 | * Handle for the value attribute of the characteristic. |
| vcoubard | 1131:692ddf04fc42 | 163 | * @param[in] value |
| vcoubard | 1131:692ddf04fc42 | 164 | * A pointer to a buffer holding the new value. |
| vcoubard | 1131:692ddf04fc42 | 165 | * @param[in] size |
| vcoubard | 1131:692ddf04fc42 | 166 | * Size of the new value (in bytes). |
| vcoubard | 1131:692ddf04fc42 | 167 | * @param[in] localOnly |
| vcoubard | 1131:692ddf04fc42 | 168 | * Should this update be kept on the local |
| vcoubard | 1131:692ddf04fc42 | 169 | * GattServer regardless of the state of the |
| vcoubard | 1131:692ddf04fc42 | 170 | * notify/indicate flag in the CCCD for this |
| vcoubard | 1131:692ddf04fc42 | 171 | * Characteristic? If set to true, no notification |
| vcoubard | 1131:692ddf04fc42 | 172 | * or indication is generated. |
| vcoubard | 1131:692ddf04fc42 | 173 | * |
| vcoubard | 1131:692ddf04fc42 | 174 | * @return BLE_ERROR_NONE if we have successfully set the value of the attribute. |
| vcoubard | 1131:692ddf04fc42 | 175 | */ |
| vcoubard | 1131:692ddf04fc42 | 176 | virtual ble_error_t write(Gap::Handle_t connectionHandle, GattAttribute::Handle_t attributeHandle, const uint8_t *value, uint16_t size, bool localOnly = false) { |
| vcoubard | 1131:692ddf04fc42 | 177 | /* Avoid compiler warnings about unused variables. */ |
| vcoubard | 1131:692ddf04fc42 | 178 | (void)connectionHandle; |
| vcoubard | 1131:692ddf04fc42 | 179 | (void)attributeHandle; |
| vcoubard | 1131:692ddf04fc42 | 180 | (void)value; |
| vcoubard | 1131:692ddf04fc42 | 181 | (void)size; |
| vcoubard | 1131:692ddf04fc42 | 182 | (void)localOnly; |
| vcoubard | 1131:692ddf04fc42 | 183 | |
| vcoubard | 1131:692ddf04fc42 | 184 | return BLE_ERROR_NOT_IMPLEMENTED; /* Requesting action from porters: override this API if this capability is supported. */ |
| vcoubard | 1131:692ddf04fc42 | 185 | } |
| vcoubard | 1131:692ddf04fc42 | 186 | |
| vcoubard | 1131:692ddf04fc42 | 187 | /** |
| vcoubard | 1131:692ddf04fc42 | 188 | * Determine the updates-enabled status (notification or indication) for the current connection from a characteristic's CCCD. |
| vcoubard | 1131:692ddf04fc42 | 189 | * |
| vcoubard | 1131:692ddf04fc42 | 190 | * @param characteristic |
| vcoubard | 1131:692ddf04fc42 | 191 | * The characteristic. |
| vcoubard | 1131:692ddf04fc42 | 192 | * @param[out] enabledP |
| vcoubard | 1131:692ddf04fc42 | 193 | * Upon return, *enabledP is true if updates are enabled, else false. |
| vcoubard | 1131:692ddf04fc42 | 194 | * |
| vcoubard | 1131:692ddf04fc42 | 195 | * @return BLE_ERROR_NONE if the connection and handle are found. False otherwise. |
| vcoubard | 1131:692ddf04fc42 | 196 | */ |
| vcoubard | 1131:692ddf04fc42 | 197 | virtual ble_error_t areUpdatesEnabled(const GattCharacteristic &characteristic, bool *enabledP) { |
| vcoubard | 1131:692ddf04fc42 | 198 | /* Avoid compiler warnings about unused variables. */ |
| vcoubard | 1131:692ddf04fc42 | 199 | (void)characteristic; |
| vcoubard | 1131:692ddf04fc42 | 200 | (void)enabledP; |
| vcoubard | 1131:692ddf04fc42 | 201 | |
| vcoubard | 1131:692ddf04fc42 | 202 | return BLE_ERROR_NOT_IMPLEMENTED; /* Requesting action from porters: override this API if this capability is supported. */ |
| vcoubard | 1131:692ddf04fc42 | 203 | } |
| vcoubard | 1131:692ddf04fc42 | 204 | |
| vcoubard | 1131:692ddf04fc42 | 205 | /** |
| vcoubard | 1131:692ddf04fc42 | 206 | * Determine the connection-specific updates-enabled status (notification or indication) from a characteristic's CCCD. |
| vcoubard | 1131:692ddf04fc42 | 207 | * |
| vcoubard | 1131:692ddf04fc42 | 208 | * @param connectionHandle |
| vcoubard | 1131:692ddf04fc42 | 209 | * The connection handle. |
| vcoubard | 1131:692ddf04fc42 | 210 | * @param[out] enabledP |
| vcoubard | 1131:692ddf04fc42 | 211 | * Upon return, *enabledP is true if updates are enabled, else false. |
| vcoubard | 1131:692ddf04fc42 | 212 | * |
| vcoubard | 1131:692ddf04fc42 | 213 | * @param characteristic |
| vcoubard | 1131:692ddf04fc42 | 214 | * The characteristic. |
| vcoubard | 1131:692ddf04fc42 | 215 | * |
| vcoubard | 1131:692ddf04fc42 | 216 | * @return BLE_ERROR_NONE if the connection and handle are found. False otherwise. |
| vcoubard | 1131:692ddf04fc42 | 217 | */ |
| vcoubard | 1131:692ddf04fc42 | 218 | virtual ble_error_t areUpdatesEnabled(Gap::Handle_t connectionHandle, const GattCharacteristic &characteristic, bool *enabledP) { |
| vcoubard | 1131:692ddf04fc42 | 219 | /* Avoid compiler warnings about unused variables. */ |
| vcoubard | 1131:692ddf04fc42 | 220 | (void)connectionHandle; |
| vcoubard | 1131:692ddf04fc42 | 221 | (void)characteristic; |
| vcoubard | 1131:692ddf04fc42 | 222 | (void)enabledP; |
| vcoubard | 1131:692ddf04fc42 | 223 | |
| vcoubard | 1131:692ddf04fc42 | 224 | return BLE_ERROR_NOT_IMPLEMENTED; /* Requesting action from porters: override this API if this capability is supported. */ |
| vcoubard | 1131:692ddf04fc42 | 225 | } |
| vcoubard | 1131:692ddf04fc42 | 226 | |
| vcoubard | 1131:692ddf04fc42 | 227 | /** |
| vcoubard | 1131:692ddf04fc42 | 228 | * A virtual function to allow underlying stacks to indicate if they support |
| vcoubard | 1131:692ddf04fc42 | 229 | * onDataRead(). It should be overridden to return true as applicable. |
| vcoubard | 1131:692ddf04fc42 | 230 | */ |
| vcoubard | 1131:692ddf04fc42 | 231 | virtual bool isOnDataReadAvailable() const { |
| vcoubard | 1131:692ddf04fc42 | 232 | return false; /* Requesting action from porters: override this API if this capability is supported. */ |
| vcoubard | 1131:692ddf04fc42 | 233 | } |
| vcoubard | 1131:692ddf04fc42 | 234 | |
| vcoubard | 1131:692ddf04fc42 | 235 | /* |
| vcoubard | 1131:692ddf04fc42 | 236 | * APIs with non-virtual implementations. |
| vcoubard | 1131:692ddf04fc42 | 237 | */ |
| vcoubard | 1131:692ddf04fc42 | 238 | public: |
| vcoubard | 1131:692ddf04fc42 | 239 | /** |
| vcoubard | 1131:692ddf04fc42 | 240 | * Add a callback for the GATT event DATA_SENT (which is triggered when |
| vcoubard | 1131:692ddf04fc42 | 241 | * updates are sent out by GATT in the form of notifications). |
| vcoubard | 1131:692ddf04fc42 | 242 | * |
| vcoubard | 1131:692ddf04fc42 | 243 | * @Note: It is possible to chain together multiple onDataSent callbacks |
| vcoubard | 1131:692ddf04fc42 | 244 | * (potentially from different modules of an application) to receive updates |
| vcoubard | 1131:692ddf04fc42 | 245 | * to characteristics. |
| vcoubard | 1131:692ddf04fc42 | 246 | * |
| vcoubard | 1131:692ddf04fc42 | 247 | * @Note: It is also possible to set up a callback into a member function of |
| vcoubard | 1131:692ddf04fc42 | 248 | * some object. |
| vcoubard | 1131:692ddf04fc42 | 249 | */ |
| vcoubard | 1131:692ddf04fc42 | 250 | void onDataSent(const DataSentCallback_t& callback) {dataSentCallChain.add(callback);} |
| vcoubard | 1131:692ddf04fc42 | 251 | template <typename T> |
| vcoubard | 1131:692ddf04fc42 | 252 | void onDataSent(T *objPtr, void (T::*memberPtr)(unsigned count)) { |
| vcoubard | 1131:692ddf04fc42 | 253 | dataSentCallChain.add(objPtr, memberPtr); |
| vcoubard | 1131:692ddf04fc42 | 254 | } |
| vcoubard | 1131:692ddf04fc42 | 255 | |
| vcoubard | 1131:692ddf04fc42 | 256 | /** |
| vcoubard | 1131:692ddf04fc42 | 257 | * @brief get the callback chain called when the event DATA_EVENT is triggered. |
| vcoubard | 1131:692ddf04fc42 | 258 | */ |
| vcoubard | 1131:692ddf04fc42 | 259 | DataSentCallbackChain_t& onDataSent() { |
| vcoubard | 1131:692ddf04fc42 | 260 | return dataSentCallChain; |
| vcoubard | 1131:692ddf04fc42 | 261 | } |
| vcoubard | 1131:692ddf04fc42 | 262 | |
| vcoubard | 1131:692ddf04fc42 | 263 | /** |
| vcoubard | 1131:692ddf04fc42 | 264 | * Set up a callback for when an attribute has its value updated by or at the |
| vcoubard | 1131:692ddf04fc42 | 265 | * connected peer. For a peripheral, this callback is triggered when the local |
| vcoubard | 1131:692ddf04fc42 | 266 | * GATT server has an attribute updated by a write command from the peer. |
| vcoubard | 1131:692ddf04fc42 | 267 | * For a central, this callback is triggered when a response is received for |
| vcoubard | 1131:692ddf04fc42 | 268 | * a write request. |
| vcoubard | 1131:692ddf04fc42 | 269 | * |
| vcoubard | 1131:692ddf04fc42 | 270 | * @Note: It is possible to chain together multiple onDataWritten callbacks |
| vcoubard | 1131:692ddf04fc42 | 271 | * (potentially from different modules of an application) to receive updates |
| vcoubard | 1131:692ddf04fc42 | 272 | * to characteristics. Many services, such as DFU and UART, add their own |
| vcoubard | 1131:692ddf04fc42 | 273 | * onDataWritten callbacks behind the scenes to trap interesting events. |
| vcoubard | 1131:692ddf04fc42 | 274 | * |
| vcoubard | 1131:692ddf04fc42 | 275 | * @Note: It is also possible to set up a callback into a member function of |
| vcoubard | 1131:692ddf04fc42 | 276 | * some object. |
| vcoubard | 1131:692ddf04fc42 | 277 | * |
| vcoubard | 1131:692ddf04fc42 | 278 | * @Note It is possible to unregister a callback using onDataWritten().detach(callback) |
| vcoubard | 1131:692ddf04fc42 | 279 | */ |
| vcoubard | 1131:692ddf04fc42 | 280 | void onDataWritten(const DataWrittenCallback_t& callback) {dataWrittenCallChain.add(callback);} |
| vcoubard | 1131:692ddf04fc42 | 281 | template <typename T> |
| vcoubard | 1131:692ddf04fc42 | 282 | void onDataWritten(T *objPtr, void (T::*memberPtr)(const GattWriteCallbackParams *context)) { |
| vcoubard | 1131:692ddf04fc42 | 283 | dataWrittenCallChain.add(objPtr, memberPtr); |
| vcoubard | 1131:692ddf04fc42 | 284 | } |
| vcoubard | 1131:692ddf04fc42 | 285 | |
| vcoubard | 1131:692ddf04fc42 | 286 | /** |
| vcoubard | 1131:692ddf04fc42 | 287 | * @brief provide access to the callchain of data written event callbacks |
| vcoubard | 1131:692ddf04fc42 | 288 | * It is possible to register callbacks using onDataWritten().add(callback); |
| vcoubard | 1131:692ddf04fc42 | 289 | * It is possible to unregister callbacks using onDataWritten().detach(callback) |
| vcoubard | 1131:692ddf04fc42 | 290 | * @return The data written event callbacks chain |
| vcoubard | 1131:692ddf04fc42 | 291 | */ |
| vcoubard | 1131:692ddf04fc42 | 292 | DataWrittenCallbackChain_t& onDataWritten() { |
| vcoubard | 1131:692ddf04fc42 | 293 | return dataWrittenCallChain; |
| vcoubard | 1131:692ddf04fc42 | 294 | } |
| vcoubard | 1131:692ddf04fc42 | 295 | |
| vcoubard | 1131:692ddf04fc42 | 296 | /** |
| vcoubard | 1131:692ddf04fc42 | 297 | * Setup a callback to be invoked on the peripheral when an attribute is |
| vcoubard | 1131:692ddf04fc42 | 298 | * being read by a remote client. |
| vcoubard | 1131:692ddf04fc42 | 299 | * |
| vcoubard | 1131:692ddf04fc42 | 300 | * @Note: This functionality may not be available on all underlying stacks. |
| vcoubard | 1131:692ddf04fc42 | 301 | * You could use GattCharacteristic::setReadAuthorizationCallback() as an |
| vcoubard | 1131:692ddf04fc42 | 302 | * alternative. Refer to isOnDataReadAvailable(). |
| vcoubard | 1131:692ddf04fc42 | 303 | * |
| vcoubard | 1131:692ddf04fc42 | 304 | * @Note: It is possible to chain together multiple onDataRead callbacks |
| vcoubard | 1131:692ddf04fc42 | 305 | * (potentially from different modules of an application) to receive updates |
| vcoubard | 1131:692ddf04fc42 | 306 | * to characteristics. Services may add their own onDataRead callbacks |
| vcoubard | 1131:692ddf04fc42 | 307 | * behind the scenes to trap interesting events. |
| vcoubard | 1131:692ddf04fc42 | 308 | * |
| vcoubard | 1131:692ddf04fc42 | 309 | * @Note: It is also possible to set up a callback into a member function of |
| vcoubard | 1131:692ddf04fc42 | 310 | * some object. |
| vcoubard | 1131:692ddf04fc42 | 311 | * |
| vcoubard | 1131:692ddf04fc42 | 312 | * @Note It is possible to unregister a callback using onDataRead().detach(callback) |
| vcoubard | 1131:692ddf04fc42 | 313 | * |
| vcoubard | 1131:692ddf04fc42 | 314 | * @return BLE_ERROR_NOT_IMPLEMENTED if this functionality isn't available; |
| vcoubard | 1131:692ddf04fc42 | 315 | * else BLE_ERROR_NONE. |
| vcoubard | 1131:692ddf04fc42 | 316 | */ |
| vcoubard | 1131:692ddf04fc42 | 317 | ble_error_t onDataRead(const DataReadCallback_t& callback) { |
| vcoubard | 1131:692ddf04fc42 | 318 | if (!isOnDataReadAvailable()) { |
| vcoubard | 1131:692ddf04fc42 | 319 | return BLE_ERROR_NOT_IMPLEMENTED; |
| vcoubard | 1131:692ddf04fc42 | 320 | } |
| vcoubard | 1131:692ddf04fc42 | 321 | |
| vcoubard | 1131:692ddf04fc42 | 322 | dataReadCallChain.add(callback); |
| vcoubard | 1131:692ddf04fc42 | 323 | return BLE_ERROR_NONE; |
| vcoubard | 1131:692ddf04fc42 | 324 | } |
| vcoubard | 1131:692ddf04fc42 | 325 | template <typename T> |
| vcoubard | 1131:692ddf04fc42 | 326 | ble_error_t onDataRead(T *objPtr, void (T::*memberPtr)(const GattReadCallbackParams *context)) { |
| vcoubard | 1131:692ddf04fc42 | 327 | if (!isOnDataReadAvailable()) { |
| vcoubard | 1131:692ddf04fc42 | 328 | return BLE_ERROR_NOT_IMPLEMENTED; |
| vcoubard | 1131:692ddf04fc42 | 329 | } |
| vcoubard | 1131:692ddf04fc42 | 330 | |
| vcoubard | 1131:692ddf04fc42 | 331 | dataReadCallChain.add(objPtr, memberPtr); |
| vcoubard | 1131:692ddf04fc42 | 332 | return BLE_ERROR_NONE; |
| vcoubard | 1131:692ddf04fc42 | 333 | } |
| vcoubard | 1131:692ddf04fc42 | 334 | |
| vcoubard | 1131:692ddf04fc42 | 335 | /** |
| vcoubard | 1131:692ddf04fc42 | 336 | * @brief provide access to the callchain of data read event callbacks |
| vcoubard | 1131:692ddf04fc42 | 337 | * It is possible to register callbacks using onDataRead().add(callback); |
| vcoubard | 1131:692ddf04fc42 | 338 | * It is possible to unregister callbacks using onDataRead().detach(callback) |
| vcoubard | 1131:692ddf04fc42 | 339 | * @return The data read event callbacks chain |
| vcoubard | 1131:692ddf04fc42 | 340 | */ |
| vcoubard | 1131:692ddf04fc42 | 341 | DataReadCallbackChain_t& onDataRead() { |
| vcoubard | 1131:692ddf04fc42 | 342 | return dataReadCallChain; |
| vcoubard | 1131:692ddf04fc42 | 343 | } |
| vcoubard | 1131:692ddf04fc42 | 344 | |
| vcoubard | 1131:692ddf04fc42 | 345 | /** |
| vcoubard | 1131:692ddf04fc42 | 346 | * Set up a callback for when notifications or indications are enabled for a |
| vcoubard | 1131:692ddf04fc42 | 347 | * characteristic on the local GATT server. |
| vcoubard | 1131:692ddf04fc42 | 348 | */ |
| vcoubard | 1131:692ddf04fc42 | 349 | void onUpdatesEnabled(EventCallback_t callback) {updatesEnabledCallback = callback;} |
| vcoubard | 1131:692ddf04fc42 | 350 | |
| vcoubard | 1131:692ddf04fc42 | 351 | /** |
| vcoubard | 1131:692ddf04fc42 | 352 | * Set up a callback for when notifications or indications are disabled for a |
| vcoubard | 1131:692ddf04fc42 | 353 | * characteristic on the local GATT server. |
| vcoubard | 1131:692ddf04fc42 | 354 | */ |
| vcoubard | 1131:692ddf04fc42 | 355 | void onUpdatesDisabled(EventCallback_t callback) {updatesDisabledCallback = callback;} |
| vcoubard | 1131:692ddf04fc42 | 356 | |
| vcoubard | 1131:692ddf04fc42 | 357 | /** |
| vcoubard | 1131:692ddf04fc42 | 358 | * Set up a callback for when the GATT server receives a response for an |
| vcoubard | 1131:692ddf04fc42 | 359 | * indication event sent previously. |
| vcoubard | 1131:692ddf04fc42 | 360 | */ |
| vcoubard | 1131:692ddf04fc42 | 361 | void onConfirmationReceived(EventCallback_t callback) {confirmationReceivedCallback = callback;} |
| vcoubard | 1131:692ddf04fc42 | 362 | |
| vcoubard | 1131:692ddf04fc42 | 363 | /* Entry points for the underlying stack to report events back to the user. */ |
| vcoubard | 1131:692ddf04fc42 | 364 | protected: |
| vcoubard | 1131:692ddf04fc42 | 365 | void handleDataWrittenEvent(const GattWriteCallbackParams *params) { |
| vcoubard | 1131:692ddf04fc42 | 366 | dataWrittenCallChain.call(params); |
| vcoubard | 1131:692ddf04fc42 | 367 | } |
| vcoubard | 1131:692ddf04fc42 | 368 | |
| vcoubard | 1131:692ddf04fc42 | 369 | void handleDataReadEvent(const GattReadCallbackParams *params) { |
| vcoubard | 1131:692ddf04fc42 | 370 | dataReadCallChain.call(params); |
| vcoubard | 1131:692ddf04fc42 | 371 | } |
| vcoubard | 1131:692ddf04fc42 | 372 | |
| vcoubard | 1131:692ddf04fc42 | 373 | void handleEvent(GattServerEvents::gattEvent_e type, GattAttribute::Handle_t attributeHandle) { |
| vcoubard | 1131:692ddf04fc42 | 374 | switch (type) { |
| vcoubard | 1131:692ddf04fc42 | 375 | case GattServerEvents::GATT_EVENT_UPDATES_ENABLED: |
| vcoubard | 1131:692ddf04fc42 | 376 | if (updatesEnabledCallback) { |
| vcoubard | 1131:692ddf04fc42 | 377 | updatesEnabledCallback(attributeHandle); |
| vcoubard | 1131:692ddf04fc42 | 378 | } |
| vcoubard | 1131:692ddf04fc42 | 379 | break; |
| vcoubard | 1131:692ddf04fc42 | 380 | case GattServerEvents::GATT_EVENT_UPDATES_DISABLED: |
| vcoubard | 1131:692ddf04fc42 | 381 | if (updatesDisabledCallback) { |
| vcoubard | 1131:692ddf04fc42 | 382 | updatesDisabledCallback(attributeHandle); |
| vcoubard | 1131:692ddf04fc42 | 383 | } |
| vcoubard | 1131:692ddf04fc42 | 384 | break; |
| vcoubard | 1131:692ddf04fc42 | 385 | case GattServerEvents::GATT_EVENT_CONFIRMATION_RECEIVED: |
| vcoubard | 1131:692ddf04fc42 | 386 | if (confirmationReceivedCallback) { |
| vcoubard | 1131:692ddf04fc42 | 387 | confirmationReceivedCallback(attributeHandle); |
| vcoubard | 1131:692ddf04fc42 | 388 | } |
| vcoubard | 1131:692ddf04fc42 | 389 | break; |
| vcoubard | 1131:692ddf04fc42 | 390 | default: |
| vcoubard | 1131:692ddf04fc42 | 391 | break; |
| vcoubard | 1131:692ddf04fc42 | 392 | } |
| vcoubard | 1131:692ddf04fc42 | 393 | } |
| vcoubard | 1131:692ddf04fc42 | 394 | |
| vcoubard | 1131:692ddf04fc42 | 395 | void handleDataSentEvent(unsigned count) { |
| vcoubard | 1131:692ddf04fc42 | 396 | dataSentCallChain.call(count); |
| vcoubard | 1131:692ddf04fc42 | 397 | } |
| vcoubard | 1131:692ddf04fc42 | 398 | |
| vcoubard | 1131:692ddf04fc42 | 399 | protected: |
| vcoubard | 1131:692ddf04fc42 | 400 | uint8_t serviceCount; |
| vcoubard | 1131:692ddf04fc42 | 401 | uint8_t characteristicCount; |
| vcoubard | 1131:692ddf04fc42 | 402 | |
| vcoubard | 1131:692ddf04fc42 | 403 | private: |
| vcoubard | 1131:692ddf04fc42 | 404 | DataSentCallbackChain_t dataSentCallChain; |
| vcoubard | 1131:692ddf04fc42 | 405 | DataWrittenCallbackChain_t dataWrittenCallChain; |
| vcoubard | 1131:692ddf04fc42 | 406 | DataReadCallbackChain_t dataReadCallChain; |
| vcoubard | 1131:692ddf04fc42 | 407 | EventCallback_t updatesEnabledCallback; |
| vcoubard | 1131:692ddf04fc42 | 408 | EventCallback_t updatesDisabledCallback; |
| vcoubard | 1131:692ddf04fc42 | 409 | EventCallback_t confirmationReceivedCallback; |
| vcoubard | 1131:692ddf04fc42 | 410 | |
| vcoubard | 1131:692ddf04fc42 | 411 | private: |
| vcoubard | 1131:692ddf04fc42 | 412 | /* Disallow copy and assignment. */ |
| vcoubard | 1131:692ddf04fc42 | 413 | GattServer(const GattServer &); |
| vcoubard | 1131:692ddf04fc42 | 414 | GattServer& operator=(const GattServer &); |
| vcoubard | 1131:692ddf04fc42 | 415 | }; |
| vcoubard | 1131:692ddf04fc42 | 416 | |
| rgrover1 | 710:b2e1a2660ec2 | 417 | #endif // ifndef __GATT_SERVER_H__ |