Jacob Rosenthal / BLE_API

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Fork of BLE_API by Bluetooth Low Energy

public/GattServer.h@123:d2cdf4ebe524, 2014-10-10 (annotated)

Committer:
jakerosenthal@gmail.com
Date:
Fri Oct 10 17:32:22 2014 -0700
Branch:
2chains
Revision:
123:d2cdf4ebe524
Parent:
118:620d28e7a1ba 
first attempt at chaining onconnect and ondisconnect

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Rohit Grover 106:a20be740075d 1 /* mbed Microcontroller Library
Rohit Grover 106:a20be740075d 2 * Copyright (c) 2006-2013 ARM Limited
Rohit Grover 106:a20be740075d 3 *
Rohit Grover 106:a20be740075d 4 * Licensed under the Apache License, Version 2.0 (the "License");
Rohit Grover 106:a20be740075d 5 * you may not use this file except in compliance with the License.
Rohit Grover 106:a20be740075d 6 * You may obtain a copy of the License at
Rohit Grover 106:a20be740075d 7 *
Rohit Grover 106:a20be740075d 8 * http://www.apache.org/licenses/LICENSE-2.0
Rohit Grover 106:a20be740075d 9 *
Rohit Grover 106:a20be740075d 10 * Unless required by applicable law or agreed to in writing, software
Rohit Grover 106:a20be740075d 11 * distributed under the License is distributed on an "AS IS" BASIS,
Rohit Grover 106:a20be740075d 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Rohit Grover 106:a20be740075d 13 * See the License for the specific language governing permissions and
Rohit Grover 106:a20be740075d 14 * limitations under the License.
Rohit Grover 106:a20be740075d 15 */
Rohit Grover 106:a20be740075d 16
Rohit Grover 106:a20be740075d 17 #ifndef __GATT_SERVER_H__
Rohit Grover 106:a20be740075d 18 #define __GATT_SERVER_H__
Rohit Grover 106:a20be740075d 19
Rohit Grover 106:a20be740075d 20 #include "mbed.h"
Rohit Grover 106:a20be740075d 21 #include "blecommon.h"
Rohit Grover 106:a20be740075d 22 #include "GattService.h"
Rohit Grover 106:a20be740075d 23 #include "GattServerEvents.h"
Rohit Grover 116:ca826083980e 24 #include "GattCharacteristicWriteCBParams.h"
Rohit Grover 118:620d28e7a1ba 25 #include "CallChainOfFunctionPointersWithContext.h"
Rohit Grover 106:a20be740075d 26
Rohit Grover 106:a20be740075d 27 /**************************************************************************/
Rohit Grover 106:a20be740075d 28 /*!
Rohit Grover 106:a20be740075d 29 \brief
Rohit Grover 106:a20be740075d 30 The base class used to abstract GATT Server functionality to a specific
Rohit Grover 106:a20be740075d 31 radio transceiver, SOC or BLE Stack.
Rohit Grover 106:a20be740075d 32 */
Rohit Grover 106:a20be740075d 33 /**************************************************************************/
Rohit Grover 106:a20be740075d 34 class GattServer
Rohit Grover 106:a20be740075d 35 {
Rohit Grover 106:a20be740075d 36 public:
Rohit Grover 106:a20be740075d 37 /* These functions must be defined in the sub-class */
Rohit Grover 106:a20be740075d 38 virtual ble_error_t addService(GattService &) = 0;
Rohit Grover 106:a20be740075d 39 virtual ble_error_t readValue(uint16_t handle, uint8_t buffer[], uint16_t *const lengthP) = 0;
Rohit Grover 106:a20be740075d 40 virtual ble_error_t updateValue(uint16_t, uint8_t[], uint16_t, bool localOnly = false) = 0;
Rohit Grover 106:a20be740075d 41
Rohit Grover 106:a20be740075d 42 // ToDo: For updateValue, check the CCCD to see if the value we are
Rohit Grover 106:a20be740075d 43 // updating has the notify or indicate bits sent, and if BOTH are set
Rohit Grover 106:a20be740075d 44 // be sure to call sd_ble_gatts_hvx() twice with notify then indicate!
Rohit Grover 106:a20be740075d 45 // Strange use case, but valid and must be covered!
Rohit Grover 106:a20be740075d 46
Rohit Grover 106:a20be740075d 47 /* Event callback handlers. */
Rohit Grover 106:a20be740075d 48 typedef void (*EventCallback_t)(uint16_t attributeHandle);
Rohit Grover 116:ca826083980e 49 typedef void (*ServerEventCallback_t)(void); /**< independent of any particular attribute */
Rohit Grover 116:ca826083980e 50 typedef void (*ServerEventCallbackWithCount_t)(unsigned count); /**< independent of any particular attribute */
Rohit Grover 116:ca826083980e 51 void setOnDataSent(ServerEventCallbackWithCount_t callback) {
Rohit Grover 106:a20be740075d 52 onDataSent = callback;
Rohit Grover 106:a20be740075d 53 }
Rohit Grover 118:620d28e7a1ba 54 void setOnDataWritten(void (*callback)(const GattCharacteristicWriteCBParams *eventDataP)) {
Rohit Grover 118:620d28e7a1ba 55 onDataWritten.add(callback);
Rohit Grover 118:620d28e7a1ba 56 }
Rohit Grover 118:620d28e7a1ba 57 template <typename T>
Rohit Grover 118:620d28e7a1ba 58 void setOnDataWritten(T *objPtr, void (T::*memberPtr)(const GattCharacteristicWriteCBParams *context)) {
Rohit Grover 118:620d28e7a1ba 59 onDataWritten.add(objPtr, memberPtr);
Rohit Grover 106:a20be740075d 60 }
Rohit Grover 106:a20be740075d 61 void setOnUpdatesEnabled(EventCallback_t callback) {
Rohit Grover 106:a20be740075d 62 onUpdatesEnabled = callback;
Rohit Grover 106:a20be740075d 63 }
Rohit Grover 106:a20be740075d 64 void setOnUpdatesDisabled(EventCallback_t callback) {
Rohit Grover 106:a20be740075d 65 onUpdatesDisabled = callback;
Rohit Grover 106:a20be740075d 66 }
Rohit Grover 106:a20be740075d 67 void setOnConfirmationReceived(EventCallback_t callback) {
Rohit Grover 106:a20be740075d 68 onConfirmationReceived = callback;
Rohit Grover 106:a20be740075d 69 }
Rohit Grover 106:a20be740075d 70
Rohit Grover 118:620d28e7a1ba 71 void handleDataWrittenEvent(const GattCharacteristicWriteCBParams *params) {
Rohit Grover 118:620d28e7a1ba 72 if (onDataWritten.hasCallbacksAttached()) {
Rohit Grover 118:620d28e7a1ba 73 onDataWritten.call(params);
Rohit Grover 116:ca826083980e 74 }
Rohit Grover 116:ca826083980e 75 }
Rohit Grover 116:ca826083980e 76
Rohit Grover 106:a20be740075d 77 void handleEvent(GattServerEvents::gattEvent_e type, uint16_t charHandle) {
Rohit Grover 106:a20be740075d 78 switch (type) {
Rohit Grover 106:a20be740075d 79 case GattServerEvents::GATT_EVENT_UPDATES_ENABLED:
Rohit Grover 106:a20be740075d 80 if (onUpdatesEnabled) {
Rohit Grover 106:a20be740075d 81 onUpdatesEnabled(charHandle);
Rohit Grover 106:a20be740075d 82 }
Rohit Grover 106:a20be740075d 83 break;
Rohit Grover 106:a20be740075d 84 case GattServerEvents::GATT_EVENT_UPDATES_DISABLED:
Rohit Grover 106:a20be740075d 85 if (onUpdatesDisabled) {
Rohit Grover 106:a20be740075d 86 onUpdatesDisabled(charHandle);
Rohit Grover 106:a20be740075d 87 }
Rohit Grover 106:a20be740075d 88 break;
Rohit Grover 106:a20be740075d 89 case GattServerEvents::GATT_EVENT_CONFIRMATION_RECEIVED:
Rohit Grover 106:a20be740075d 90 if (onConfirmationReceived) {
Rohit Grover 106:a20be740075d 91 onConfirmationReceived(charHandle);
Rohit Grover 106:a20be740075d 92 }
Rohit Grover 106:a20be740075d 93 break;
Rohit Grover 106:a20be740075d 94 }
Rohit Grover 106:a20be740075d 95 }
Rohit Grover 106:a20be740075d 96
Rohit Grover 116:ca826083980e 97 void handleDataSentEvent(unsigned count) {
Rohit Grover 116:ca826083980e 98 if (onDataSent) {
Rohit Grover 116:ca826083980e 99 onDataSent(count);
Rohit Grover 106:a20be740075d 100 }
Rohit Grover 106:a20be740075d 101 }
Rohit Grover 106:a20be740075d 102
Rohit Grover 106:a20be740075d 103 protected:
Rohit Grover 118:620d28e7a1ba 104 GattServer() : serviceCount(0), characteristicCount(0), onDataSent(NULL), onDataWritten(), onUpdatesEnabled(NULL), onUpdatesDisabled(NULL), onConfirmationReceived(NULL) {
Rohit Grover 106:a20be740075d 105 /* empty */
Rohit Grover 106:a20be740075d 106 }
Rohit Grover 106:a20be740075d 107
Rohit Grover 106:a20be740075d 108 protected:
Rohit Grover 106:a20be740075d 109 uint8_t serviceCount;
Rohit Grover 106:a20be740075d 110 uint8_t characteristicCount;
carlescufi 114:f1ede142a78f 111 uint8_t descriptorCount;
Rohit Grover 106:a20be740075d 112
Rohit Grover 106:a20be740075d 113 private:
Rohit Grover 116:ca826083980e 114 ServerEventCallbackWithCount_t onDataSent;
Rohit Grover 118:620d28e7a1ba 115 CallChainOfFunctionPointersWithContext<const GattCharacteristicWriteCBParams *> onDataWritten;
Rohit Grover 116:ca826083980e 116 EventCallback_t onUpdatesEnabled;
Rohit Grover 116:ca826083980e 117 EventCallback_t onUpdatesDisabled;
Rohit Grover 116:ca826083980e 118 EventCallback_t onConfirmationReceived;
Rohit Grover 106:a20be740075d 119 };
Rohit Grover 106:a20be740075d 120
Rohit Grover 106:a20be740075d 121 #endif // ifndef __GATT_SERVER_H__