RASCSI/cpp/hal/gpiobus_allwinner.h
Uwe Seimet 621cc7d5a2
Code cleanup, especially casts, lambdas, data types, encapsulation (#952)
* Unit test updates

* Lambda syntax cleanup

* Use new-style casts

* Use std::none_of when saving the cache

* Use to_integer instead of casts

* Use accessors for getting CDB data

* Made ctrl_t private

* Improved encapsulation

* Replaced pointers by references

* Removed all remaining occurrences of DWORD and BYTE, making os.h obsolete
2022-11-02 07:36:25 +01:00

129 lines
3.7 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_Allwinner : public GPIOBUS
{
public:
// Basic Functions
GPIOBUS_Allwinner() = default;
~GPIOBUS_Allwinner() 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;
uint8_t GetDAT() override;
// Get DAT signal
void SetDAT(uint8_t dat) override;
// Set DAT signal
protected:
// 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
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
#ifdef USE_SEL_EVENT_ENABLE
struct gpioevent_request selevreq = {}; // SEL signal event request
int epfd; // epoll file descriptor
#endif // USE_SEL_EVENT_ENABLE
#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
};