RASCSI/cpp/hal/gpiobus_raspberry.h
Daniel Markstedt 08194af424
Move C++ code into cpp/ dir (#941)
- Moved C++ code to cpp/ from src/raspberrypi
- Related updates to Makefile, easyinstall.sh, and the github build rules
- Removed the native X68k C code in src/x68k from the repo
2022-10-25 12:59:30 -07:00

125 lines
3.5 KiB
C++

//---------------------------------------------------------------------------
//
// SCSI Target Emulator RaSCSI Reloaded
// for Raspberry Pi
//
// Powered by XM6 TypeG Technology.
// Copyright (C) 2016-2020 GIMONS
// [ GPIO-SCSI bus ]
//
//---------------------------------------------------------------------------
#pragma once
#include "config.h"
#include "hal/gpiobus.h"
#include "log.h"
#include "scsi.h"
//---------------------------------------------------------------------------
//
// Class definition
//
//---------------------------------------------------------------------------
class GPIOBUS_Raspberry final : public GPIOBUS
{
public:
// Basic Functions
GPIOBUS_Raspberry() = default;
~GPIOBUS_Raspberry() override = default;
// Destructor
bool Init(mode_e mode = mode_e::TARGET) override;
// Initialization
void Reset() override;
// Reset
void Cleanup() override;
// Cleanup
//---------------------------------------------------------------------------
//
// Bus signal acquisition
//
//---------------------------------------------------------------------------
uint32_t Acquire() override;
BYTE GetDAT() override;
// Get DAT signal
void SetDAT(BYTE dat) override;
// Set DAT signal
private:
// SCSI I/O signal control
void MakeTable() override;
// Create work data
void SetControl(int pin, bool ast) override;
// Set Control Signal
void SetMode(int pin, int mode) override;
// Set SCSI I/O mode
bool GetSignal(int pin) const override;
// Get SCSI input signal value
void SetSignal(int pin, bool ast) override;
// Set SCSI output signal value
bool WaitSignal(int pin, int ast) override;
// Wait for a signal to change
// Interrupt control
void DisableIRQ() override;
// IRQ Disabled
void EnableIRQ() override;
// IRQ Enabled
// GPIO pin functionality settings
void PinConfig(int pin, int mode) override;
// GPIO pin direction setting
void PullConfig(int pin, int mode) override;
// GPIO pin pull up/down resistor setting
void PinSetSignal(int pin, bool ast) override;
// Set GPIO output signal
void DrvConfig(uint32_t drive) override;
// Set GPIO drive strength
#if !defined(__x86_64__) && !defined(__X86__)
uint32_t baseaddr = 0; // Base address
#endif
int rpitype = 0; // Type of Raspberry Pi
volatile uint32_t *gpio = nullptr; // GPIO register
volatile uint32_t *pads = nullptr; // PADS register
#if !defined(__x86_64__) && !defined(__X86__)
volatile uint32_t *level = nullptr; // GPIO input level
#endif
volatile uint32_t *irpctl = nullptr; // Interrupt control register
volatile uint32_t irptenb; // Interrupt enabled state
volatile uint32_t *qa7regs = nullptr; // QA7 register
volatile int tintcore; // Interupt control target CPU.
volatile uint32_t tintctl; // Interupt control
volatile uint32_t giccpmr; // GICC priority setting
#if !defined(__x86_64__) && !defined(__X86__)
volatile uint32_t *gicd = nullptr; // GIC Interrupt distributor register
#endif
volatile uint32_t *gicc = nullptr; // GIC CPU interface register
array<uint32_t, 4> gpfsel; // GPFSEL0-4 backup values
uint32_t signals = 0; // All bus signals
#if SIGNAL_CONTROL_MODE == 0
array<array<uint32_t, 256>, 3> tblDatMsk; // Data mask table
array<array<uint32_t, 256>, 3> tblDatSet; // Data setting table
#else
array<uint32_t, 256> tblDatMsk = {}; // Data mask table
array<uint32_t, 256> tblDatSet = {}; // Table setting table
#endif
};