sim_port.h

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/*
 * sim_port.h
 *
 *  Copyright 2021-2026 Clement Savergne <csavergne@yahoo.com>
 
    This file is part of yasim-avr.
 
    yasim-avr is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    yasim-avr 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 General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with yasim-avr.  If not, see <http://www.gnu.org/licenses/>.
 */
 
//=======================================================================================
 
#ifndef __YASIMAVR_IO_PORT_H__
#define __YASIMAVR_IO_PORT_H__
 
#include "../core/sim_peripheral.h"
#include "../core/sim_types.h"
#include "../core/sim_pin.h"
 
YASIMAVR_BEGIN_NAMESPACE
 
 
//=======================================================================================
class AVR_CORE_PUBLIC_API Port : public Peripheral {
 
public:
 
    explicit Port(char name);
 
    virtual bool init(Device& device) override;
    virtual void reset(int flags) override;
    virtual bool ctlreq(ctlreq_id_t req, ctlreq_data_t* data) override;
 
protected:
 
    bitmask_t pin_mask() const;
    Pin* pin(uint8_t num) const;
    void set_pin_internal_state(uint8_t num, const Pin::controls_t& controls);
 
    virtual void pin_state_changed(uint8_t num, Wire::StateEnum state);
 
private:
 
    const char m_name;
    bitmask_t m_pinmask;
    BoundFunctionSignalHook<Port> m_pin_signal_hook;
    Signal m_signal;
    Pin* m_pins[8];
    uint8_t m_port_value;
 
    void pin_signal_raised(const signal_data_t& sigdata, int hooktag);
 
};
 
inline bitmask_t Port::pin_mask() const
{
    return m_pinmask;
}
 
 
inline Pin* Port::pin(uint8_t num) const
{
    return m_pins[num];
}
 
 
YASIMAVR_END_NAMESPACE
 
#endif //__YASIMAVR_IO_PORT_H__