bsim_qemu.h

/* ########################################################################
 
   PICSimLab - Programmable IC Simulator Laboratory
 
   ########################################################################
 
   Copyright (c) : 2010-2026 Luis Claudio Gambôa Lopes <lcgamboa@yahoo.com>
 
   This program 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 2, or (at your option)
   any later version.
 
   This program 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 this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
   For e-mail suggestions :  lcgamboa@yahoo.com
   ######################################################################## */
 
#ifndef BOARD_QEMU_H
#define BOARD_QEMU_H
 
#include <atomic>
#include "../devices/bitbang_i2c.h"
#include "../devices/bitbang_out.h"
#include "../devices/bitbang_pwm.h"
#include "../devices/bitbang_spi.h"
#include "../devices/bitbang_uart.h"
#include "../lib/board.h"
#include "qemu.h"
 
typedef enum { QEMU_SIM_NONE = 0, QEMU_SIM_STM32, QEMU_SIM_ESP32, QEMU_SIM_ESP32_C3 } QEMUSimType;
 
#define TTIMEOUT (BASETIMER * 1000000L)
 
class bsim_qemu : virtual public board {
public:
    bsim_qemu(void);
    ~bsim_qemu(void);
    int DebugInit(int dtyppe) override;
    std::string GetDebugName(void) override { return "GDB"; };
    void DebugLoop(void) override;
    int CpuInitialized(void) override;
    void MSetSerial(const char* port) override;
    int MInit(const char* processor, const char* fname, float freq) override;
    void MEnd(void) override;
    int MGetArchitecture(void) override;
    std ::string GetSimBackends(void) override;
    std ::string GetDebuggers(void) override;
    int MDumpMemory(const char* fname) override;
    void MEraseFlash(void) override;
    void MSetFreq(float freq) override;
    float MGetFreq(void) override;
    void MSetVCC(float vcc) override;
    float MGetVCC(void) override;
    float MGetInstClockFreq(void) override;
    void MSetPin(int pin, unsigned char value) override;
    void MSetPinDOV(int pin, unsigned char ovalue) override;
    void MSetPinOAV(int pin, float value) override;
    unsigned char MGetPin(int pin) override;
    const picpin* MGetPinsValues(void) override;
    float* MGetPinOAVPtr(int pin) override;
    void MStep(void) override;
    void MStepResume(void) override {};
    int MReset(int flags) override;
    int MGetResetPin(void) override;
    int MGetIOUpdated(void) override;
    void MClearIOUpdated(void) override;
    void EvThreadRun(void) override;
    int GetDefaultClock(void) override { return 1; };
    int GetInc_ns(void) { return inc_ns; };
    virtual void PinsExtraConfig(int cfg) {};
    user_timer_t timer;
    virtual void Run_CPU_ns(uint64_t time) = 0;
    bitbang_i2c_t master_i2c[2];
    bitbang_spi_t master_spi[2];
    bitbang_uart_t master_uart[3];
    bitbang_pwm_t pwm_out;
    bitbang_out_t rmt_out;
    void IoLockAccess(void) override;
    void IoUnlockAccess(void) override;
    int GetUARTRX(const int uart_num) override;
    int GetUARTTX(const int uart_num) override;
    virtual std::string GetClkLabel(void) override { return "IO (Mhz)"; };
    // Called ever 1s to refresh status
    void RefreshStatus(void) override;
    void MSetSimulationRun(int run) override;
 
protected:
    int MipsStrToIcount(const char* mipstr);
    const char* IcountToMipsStr(int icount);
    const char* IcountToMipsItens(char* buffer);
    unsigned int ns_count;
    void pins_reset(void);
    virtual void BoardOptions(int* argc, char** argv) {};
    virtual const short int* GetPinMap(void) = 0;
    int icount;
#ifdef _WIN_
    HANDLE serialfd[4];
#else
    int serialfd[4];
#endif
    int procid;
    picpin pins[MAX_PIN_COUNT];
    unsigned int serialbaud;
    float serialexbaud;
    float freq;
    unsigned int inc_ns;
    char fname[2048];
    char fname_[2048];
    char fname_bak[2048];
    unsigned short ADCvalues[16];
    int mtx_qinitId;
    std::atomic_int qemu_started;
    QEMUSimType SimType;
    std::string cmdline;
    int use_cmdline_extra;
    std::string cmdline_extra;
    int serial_open;
    unsigned int application_offset;
    int ConfEnableSerial;
    int ConfigWaitGdb;
 
private:
    int load_qemu_lib(const char* path);
};
 
#endif /* BOARD_QEMU_H */