mirror of
https://github.com/akuker/RASCSI.git
synced 2024-11-22 01:31:25 +00:00
08194af424
- 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
125 lines
3.5 KiB
C++
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
|
|
};
|