Wang Xinglu / BLE_API

High level Bluetooth Low Energy API and radio abstraction layer

Dependencies:   nRF51822

Dependents:   LinkNode_LIS3DH

Fork of BLE_API by Bluetooth Low Energy

public/GattClient.h@495:b0d77b1db2df, 2015-06-19 (annotated)

Committer:
rgrover1
Date:
Fri Jun 19 15:52:02 2015 +0100
Revision:
495:b0d77b1db2df
Parent:
490:58a0313fffb5
Child:
497:926d444599e8
Synchronized with git rev 2b27daba

Author: Rohit Grover

add read() to GattClient

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rgrover1 490:58a0313fffb5 1 /* mbed Microcontroller Library
rgrover1 490:58a0313fffb5 2 * Copyright (c) 2006-2013 ARM Limited
rgrover1 490:58a0313fffb5 3 *
rgrover1 490:58a0313fffb5 4 * Licensed under the Apache License, Version 2.0 (the "License");
rgrover1 490:58a0313fffb5 5 * you may not use this file except in compliance with the License.
rgrover1 490:58a0313fffb5 6 * You may obtain a copy of the License at
rgrover1 490:58a0313fffb5 7 *
rgrover1 490:58a0313fffb5 8 * http://www.apache.org/licenses/LICENSE-2.0
rgrover1 490:58a0313fffb5 9 *
rgrover1 490:58a0313fffb5 10 * Unless required by applicable law or agreed to in writing, software
rgrover1 490:58a0313fffb5 11 * distributed under the License is distributed on an "AS IS" BASIS,
rgrover1 490:58a0313fffb5 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
rgrover1 490:58a0313fffb5 13 * See the License for the specific language governing permissions and
rgrover1 490:58a0313fffb5 14 * limitations under the License.
rgrover1 490:58a0313fffb5 15 */
rgrover1 490:58a0313fffb5 16
rgrover1 490:58a0313fffb5 17 #ifndef __GATT_CLIENT_H__
rgrover1 490:58a0313fffb5 18 #define __GATT_CLIENT_H__
rgrover1 490:58a0313fffb5 19
rgrover1 495:b0d77b1db2df 20 #include "blecommon.h"
rgrover1 495:b0d77b1db2df 21 #include "Gap.h"
rgrover1 495:b0d77b1db2df 22 #include "GattAttribute.h"
rgrover1 495:b0d77b1db2df 23
rgrover1 490:58a0313fffb5 24 class GattClient {
rgrover1 495:b0d77b1db2df 25 public:
rgrover1 495:b0d77b1db2df 26 /* Initiate a Gatt Client read procedure by attribute-handle.*/
rgrover1 495:b0d77b1db2df 27 virtual ble_error_t read(Gap::Handle_t connHandle, GattAttribute::Handle_t attributeHandle, uint16_t offset) const = 0;
rgrover1 495:b0d77b1db2df 28
rgrover1 490:58a0313fffb5 29 #if 0
rgrover1 490:58a0313fffb5 30 public:
rgrover1 490:58a0313fffb5 31 /* Event callback handlers. */
rgrover1 490:58a0313fffb5 32 typedef void (*EventCallback_t)(GattAttribute::Handle_t attributeHandle);
rgrover1 490:58a0313fffb5 33 typedef void (*ServerEventCallback_t)(void); /**< independent of any particular attribute */
rgrover1 490:58a0313fffb5 34
rgrover1 490:58a0313fffb5 35 friend class BLEDevice;
rgrover1 490:58a0313fffb5 36 private:
rgrover1 490:58a0313fffb5 37 /* These functions must be defined in the sub-class */
rgrover1 490:58a0313fffb5 38 virtual ble_error_t addService(GattService &) = 0;
rgrover1 490:58a0313fffb5 39 virtual ble_error_t readValue(GattAttribute::Handle_t attributeHandle, uint8_t buffer[], uint16_t *lengthP) = 0;
rgrover1 490:58a0313fffb5 40 virtual ble_error_t readValue(Gap::Handle_t connectionHandle, GattAttribute::Handle_t attributeHandle, uint8_t buffer[], uint16_t *lengthP) = 0;
rgrover1 490:58a0313fffb5 41 virtual ble_error_t updateValue(GattAttribute::Handle_t, const uint8_t[], uint16_t, bool localOnly = false) = 0;
rgrover1 490:58a0313fffb5 42 virtual ble_error_t updateValue(Gap::Handle_t connectionHandle, GattAttribute::Handle_t, const uint8_t[], uint16_t, bool localOnly = false) = 0;
rgrover1 490:58a0313fffb5 43 virtual ble_error_t initializeGATTDatabase(void) = 0;
rgrover1 490:58a0313fffb5 44
rgrover1 490:58a0313fffb5 45 // ToDo: For updateValue, check the CCCD to see if the value we are
rgrover1 490:58a0313fffb5 46 // updating has the notify or indicate bits sent, and if BOTH are set
rgrover1 490:58a0313fffb5 47 // be sure to call sd_ble_gatts_hvx() twice with notify then indicate!
rgrover1 490:58a0313fffb5 48 // Strange use case, but valid and must be covered!
rgrover1 490:58a0313fffb5 49
rgrover1 490:58a0313fffb5 50 void setOnDataSent(void (*callback)(unsigned count)) {onDataSent.add(callback);}
rgrover1 490:58a0313fffb5 51 template <typename T>
rgrover1 490:58a0313fffb5 52 void setOnDataSent(T *objPtr, void (T::*memberPtr)(unsigned count)) {
rgrover1 490:58a0313fffb5 53 onDataSent.add(objPtr, memberPtr);
rgrover1 490:58a0313fffb5 54 }
rgrover1 490:58a0313fffb5 55 void setOnDataWritten(void (*callback)(const GattCharacteristicWriteCBParams *eventDataP)) {onDataWritten.add(callback);}
rgrover1 490:58a0313fffb5 56 template <typename T>
rgrover1 490:58a0313fffb5 57 void setOnDataWritten(T *objPtr, void (T::*memberPtr)(const GattCharacteristicWriteCBParams *context)) {
rgrover1 490:58a0313fffb5 58 onDataWritten.add(objPtr, memberPtr);
rgrover1 490:58a0313fffb5 59 }
rgrover1 490:58a0313fffb5 60
rgrover1 490:58a0313fffb5 61 /**
rgrover1 490:58a0313fffb5 62 * A virtual function to allow underlying stacks to indicate if they support
rgrover1 490:58a0313fffb5 63 * onDataRead(). It should be overridden to return true as applicable.
rgrover1 490:58a0313fffb5 64 */
rgrover1 490:58a0313fffb5 65 virtual bool isOnDataReadAvailable() const {
rgrover1 490:58a0313fffb5 66 return false;
rgrover1 490:58a0313fffb5 67 }
rgrover1 490:58a0313fffb5 68 ble_error_t setOnDataRead(void (*callback)(const GattCharacteristicReadCBParams *eventDataP)) {
rgrover1 490:58a0313fffb5 69 if (!isOnDataReadAvailable()) {
rgrover1 490:58a0313fffb5 70 return BLE_ERROR_NOT_IMPLEMENTED;
rgrover1 490:58a0313fffb5 71 }
rgrover1 490:58a0313fffb5 72
rgrover1 490:58a0313fffb5 73 onDataRead.add(callback);
rgrover1 490:58a0313fffb5 74 return BLE_ERROR_NONE;
rgrover1 490:58a0313fffb5 75 }
rgrover1 490:58a0313fffb5 76 template <typename T>
rgrover1 490:58a0313fffb5 77 ble_error_t setOnDataRead(T *objPtr, void (T::*memberPtr)(const GattCharacteristicReadCBParams *context)) {
rgrover1 490:58a0313fffb5 78 if (!isOnDataReadAvailable()) {
rgrover1 490:58a0313fffb5 79 return BLE_ERROR_NOT_IMPLEMENTED;
rgrover1 490:58a0313fffb5 80 }
rgrover1 490:58a0313fffb5 81
rgrover1 490:58a0313fffb5 82 onDataRead.add(objPtr, memberPtr);
rgrover1 490:58a0313fffb5 83 return BLE_ERROR_NONE;
rgrover1 490:58a0313fffb5 84 }
rgrover1 490:58a0313fffb5 85 void setOnUpdatesEnabled(EventCallback_t callback) {onUpdatesEnabled = callback;}
rgrover1 490:58a0313fffb5 86 void setOnUpdatesDisabled(EventCallback_t callback) {onUpdatesDisabled = callback;}
rgrover1 490:58a0313fffb5 87 void setOnConfirmationReceived(EventCallback_t callback) {onConfirmationReceived = callback;}
rgrover1 490:58a0313fffb5 88
rgrover1 490:58a0313fffb5 89 protected:
rgrover1 490:58a0313fffb5 90 void handleDataWrittenEvent(const GattCharacteristicWriteCBParams *params) {
rgrover1 490:58a0313fffb5 91 if (onDataWritten.hasCallbacksAttached()) {
rgrover1 490:58a0313fffb5 92 onDataWritten.call(params);
rgrover1 490:58a0313fffb5 93 }
rgrover1 490:58a0313fffb5 94 }
rgrover1 490:58a0313fffb5 95
rgrover1 490:58a0313fffb5 96 void handleDataReadEvent(const GattCharacteristicReadCBParams *params) {
rgrover1 490:58a0313fffb5 97 if (onDataRead.hasCallbacksAttached()) {
rgrover1 490:58a0313fffb5 98 onDataRead.call(params);
rgrover1 490:58a0313fffb5 99 }
rgrover1 490:58a0313fffb5 100 }
rgrover1 490:58a0313fffb5 101
rgrover1 490:58a0313fffb5 102 void handleEvent(GattServerEvents::gattEvent_e type, GattAttribute::Handle_t charHandle) {
rgrover1 490:58a0313fffb5 103 switch (type) {
rgrover1 490:58a0313fffb5 104 case GattServerEvents::GATT_EVENT_UPDATES_ENABLED:
rgrover1 490:58a0313fffb5 105 if (onUpdatesEnabled) {
rgrover1 490:58a0313fffb5 106 onUpdatesEnabled(charHandle);
rgrover1 490:58a0313fffb5 107 }
rgrover1 490:58a0313fffb5 108 break;
rgrover1 490:58a0313fffb5 109 case GattServerEvents::GATT_EVENT_UPDATES_DISABLED:
rgrover1 490:58a0313fffb5 110 if (onUpdatesDisabled) {
rgrover1 490:58a0313fffb5 111 onUpdatesDisabled(charHandle);
rgrover1 490:58a0313fffb5 112 }
rgrover1 490:58a0313fffb5 113 break;
rgrover1 490:58a0313fffb5 114 case GattServerEvents::GATT_EVENT_CONFIRMATION_RECEIVED:
rgrover1 490:58a0313fffb5 115 if (onConfirmationReceived) {
rgrover1 490:58a0313fffb5 116 onConfirmationReceived(charHandle);
rgrover1 490:58a0313fffb5 117 }
rgrover1 490:58a0313fffb5 118 break;
rgrover1 490:58a0313fffb5 119 default:
rgrover1 490:58a0313fffb5 120 break;
rgrover1 490:58a0313fffb5 121 }
rgrover1 490:58a0313fffb5 122 }
rgrover1 490:58a0313fffb5 123
rgrover1 490:58a0313fffb5 124 void handleDataSentEvent(unsigned count) {
rgrover1 490:58a0313fffb5 125 if (onDataSent.hasCallbacksAttached()) {
rgrover1 490:58a0313fffb5 126 onDataSent.call(count);
rgrover1 490:58a0313fffb5 127 }
rgrover1 490:58a0313fffb5 128 }
rgrover1 490:58a0313fffb5 129
rgrover1 490:58a0313fffb5 130 protected:
rgrover1 490:58a0313fffb5 131 uint8_t serviceCount;
rgrover1 490:58a0313fffb5 132 uint8_t characteristicCount;
rgrover1 490:58a0313fffb5 133
rgrover1 490:58a0313fffb5 134 private:
rgrover1 490:58a0313fffb5 135 CallChainOfFunctionPointersWithContext<unsigned> onDataSent;
rgrover1 490:58a0313fffb5 136 CallChainOfFunctionPointersWithContext<const GattCharacteristicWriteCBParams *> onDataWritten;
rgrover1 490:58a0313fffb5 137 CallChainOfFunctionPointersWithContext<const GattCharacteristicReadCBParams *> onDataRead;
rgrover1 490:58a0313fffb5 138 EventCallback_t onUpdatesEnabled;
rgrover1 490:58a0313fffb5 139 EventCallback_t onUpdatesDisabled;
rgrover1 490:58a0313fffb5 140 EventCallback_t onConfirmationReceived;
rgrover1 490:58a0313fffb5 141 #endif
rgrover1 490:58a0313fffb5 142
rgrover1 490:58a0313fffb5 143 protected:
rgrover1 490:58a0313fffb5 144 GattClient() {
rgrover1 490:58a0313fffb5 145 /* empty */
rgrover1 490:58a0313fffb5 146 }
rgrover1 490:58a0313fffb5 147
rgrover1 490:58a0313fffb5 148 private:
rgrover1 490:58a0313fffb5 149 /* disallow copy and assignment */
rgrover1 490:58a0313fffb5 150 GattClient(const GattClient &);
rgrover1 490:58a0313fffb5 151 GattClient& operator=(const GattClient &);
rgrover1 490:58a0313fffb5 152 };
rgrover1 490:58a0313fffb5 153
rgrover1 490:58a0313fffb5 154 #endif // ifndef __GATT_CLIENT_H__