0a45a06142
This PR enhances the Wire library to support std::function–based callbacks for I2C slave mode, enabling the use of lambdas and captured contexts. - Replaces raw function pointers in TwoWire and HardwareI2C with std::function for onRequest and onReceive - Updates constructors, method signatures, and default initializations to use std::function - Adds new example sketch, CI config, and documentation updates demonstrating the functional callback API
43 lines
1.5 KiB
C++
43 lines
1.5 KiB
C++
/*
|
|
Copyright (c) 2016 Arduino LLC. All right reserved.
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
This library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
See the GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with this library; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <inttypes.h>
|
|
#include "Stream.h"
|
|
#include <functional>
|
|
|
|
class HardwareI2C : public Stream {
|
|
public:
|
|
virtual bool begin() = 0;
|
|
virtual bool begin(uint8_t address) = 0;
|
|
virtual bool end() = 0;
|
|
|
|
virtual bool setClock(uint32_t freq) = 0;
|
|
|
|
virtual void beginTransmission(uint8_t address) = 0;
|
|
virtual uint8_t endTransmission(bool stopBit) = 0;
|
|
virtual uint8_t endTransmission(void) = 0;
|
|
|
|
virtual size_t requestFrom(uint8_t address, size_t len, bool stopBit) = 0;
|
|
virtual size_t requestFrom(uint8_t address, size_t len) = 0;
|
|
|
|
// Update base class to use std::function
|
|
virtual void onReceive(const std::function<void(int)> &) = 0;
|
|
virtual void onRequest(const std::function<void()> &) = 0;
|
|
};
|