arch_xt_acp.h

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/*
 * arch_xt_acp.h
 *
 *  Copyright 2022-2026 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_XT_ACOMP_H__
#define __YASIMAVR_XT_ACOMP_H__
 
#include "arch_xt_globals.h"
#include "ioctrl_common/sim_acp.h"
#include "ioctrl_common/sim_vref.h"
#include "core/sim_interrupt.h"
#include "core/sim_pin.h"
 
YASIMAVR_BEGIN_NAMESPACE
 
 
//=======================================================================================
//Request to obtain the DAC output value
#define AVR_CTLREQ_ACP_GET_DAC         (AVR_CTLREQ_BASE + 1)
 
 
//=======================================================================================
 
struct ArchXT_ACPConfig {
 
    std::vector<ACP::channel_config_t> pos_channels;
    std::vector<ACP::channel_config_t> neg_channels;
    unsigned int vref_channel;
    reg_addr_t reg_base;
    int_vect_t iv_cmp;
 
};
 
class AVR_ARCHXT_PUBLIC_API ArchXT_ACP : public Peripheral {
 
public:
 
    ArchXT_ACP(int num, const ArchXT_ACPConfig& config);
 
    virtual bool init(Device& device) override;
    virtual void reset(int flags) override;
    virtual bool ctlreq(ctlreq_id_t req, ctlreq_data_t* data) override;
    virtual void ioreg_write_handler(reg_addr_t addr, const ioreg_write_t& data) override;
    virtual void sleep(bool on, SleepMode mode) override;
 
private:
 
    const ArchXT_ACPConfig& m_config;
    InterruptFlag m_intflag;
    DataSignal m_signal;
    //Pointer to the VREF signal to obtain ACP voltage reference updates
    DataSignal* m_vref_signal;
    DataSignalMux m_pos_mux;
    DataSignalMux m_neg_mux;
    BoundFunctionSignalHook<ArchXT_ACP> m_hook;
    //Boolean indicating if the peripheral is disabled by the current sleep mode
    bool m_sleeping;
    //Hysteresis value
    double m_hysteresis;
 
    bool register_channels(DataSignalMux& mux, const std::vector<ACP::channel_config_t>& channels);
    void input_raised(const signal_data_t& sigdata, int hooktag);
    void update_DAC();
    void update_hysteresis();
    void update_output();
 
};
 
 
YASIMAVR_END_NAMESPACE
 
#endif //__YASIMAVR_XT_ACOMP_H__