nrf51822/source/nRF5xGattServer.h

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/* mbed Microcontroller Library
* Copyright (c) 2006-2013 ARM Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __NRF51822_GATT_SERVER_H__
#define __NRF51822_GATT_SERVER_H__
#include <stddef.h>
#include "ble/blecommon.h"
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#include "ble.h" /* nordic ble */
#include "ble/Gap.h"
#include "ble/GattServer.h"
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class nRF5xGattServer : public GattServer
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{
public:
static nRF5xGattServer &getInstance();
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/* Functions that must be implemented from GattServer */
virtual ble_error_t addService(GattService &);
virtual ble_error_t read(GattAttribute::Handle_t attributeHandle, uint8_t buffer[], uint16_t *lengthP);
virtual ble_error_t read(Gap::Handle_t connectionHandle, GattAttribute::Handle_t attributeHandle, uint8_t buffer[], uint16_t *lengthP);
virtual ble_error_t write(GattAttribute::Handle_t, const uint8_t[], uint16_t, bool localOnly = false);
virtual ble_error_t write(Gap::Handle_t connectionHandle, GattAttribute::Handle_t, const uint8_t[], uint16_t, bool localOnly = false);
virtual ble_error_t areUpdatesEnabled(const GattCharacteristic &characteristic, bool *enabledP);
virtual ble_error_t areUpdatesEnabled(Gap::Handle_t connectionHandle, const GattCharacteristic &characteristic, bool *enabledP);
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/* nRF51 Functions */
void eventCallback(void);
void hwCallback(ble_evt_t *p_ble_evt);
private:
const static unsigned BLE_TOTAL_CHARACTERISTICS = 20;
const static unsigned BLE_TOTAL_DESCRIPTORS = 8;
private:
/**
* resolve a value attribute to its owning characteristic.
* @param valueHandle the value handle to be resolved.
* @return characteristic index if a resolution is found, else -1.
*/
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int resolveValueHandleToCharIndex(GattAttribute::Handle_t valueHandle) const {
unsigned charIndex;
for (charIndex = 0; charIndex < characteristicCount; charIndex++) {
if (nrfCharacteristicHandles[charIndex].value_handle == valueHandle) {
return charIndex;
}
}
return -1;
}
/**
* resolve a CCCD attribute handle to its owning characteristic.
* @param cccdHandle the CCCD handle to be resolved.
* @return characteristic index if a resolution is found, else -1.
*/
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int resolveCCCDHandleToCharIndex(GattAttribute::Handle_t cccdHandle) const {
unsigned charIndex;
for (charIndex = 0; charIndex < characteristicCount; charIndex++) {
if (nrfCharacteristicHandles[charIndex].cccd_handle == cccdHandle) {
return charIndex;
}
}
return -1;
}
private:
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GattCharacteristic *p_characteristics[BLE_TOTAL_CHARACTERISTICS];
ble_gatts_char_handles_t nrfCharacteristicHandles[BLE_TOTAL_CHARACTERISTICS];
GattAttribute *p_descriptors[BLE_TOTAL_DESCRIPTORS];
uint8_t descriptorCount;
uint16_t nrfDescriptorHandles[BLE_TOTAL_DESCRIPTORS];
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nRF5xGattServer() : GattServer(), p_characteristics(), nrfCharacteristicHandles(), p_descriptors(), descriptorCount(0), nrfDescriptorHandles() {
/* empty */
}
private:
nRF5xGattServer(const nRF5xGattServer &);
const nRF5xGattServer& operator=(const nRF5xGattServer &);
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};
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#endif // ifndef __NRF51822_GATT_SERVER_H__