mirror of
https://github.com/akuker/RASCSI.git
synced 2024-11-29 16:49:55 +00:00
287 lines
9.0 KiB
C++
287 lines
9.0 KiB
C++
//---------------------------------------------------------------------------
|
||
//
|
||
// SCSI Target Emulator PiSCSI
|
||
// for Raspberry Pi
|
||
//
|
||
// Powered by XM6 TypeG Technology.
|
||
// Copyright (C) 2016-2020 GIMONS
|
||
// [ GPIO-SCSI bus ]
|
||
//
|
||
//---------------------------------------------------------------------------
|
||
|
||
#pragma once
|
||
|
||
#include "hal/data_sample_raspberry.h"
|
||
#include "hal/gpiobus.h"
|
||
#include "shared/scsi.h"
|
||
#include <map>
|
||
|
||
//---------------------------------------------------------------------------
|
||
//
|
||
// SCSI signal pin assignment setting
|
||
// GPIO pin mapping table for SCSI signals.
|
||
// PIN_DT0～PIN_SEL
|
||
//
|
||
//---------------------------------------------------------------------------
|
||
|
||
#define ALL_SCSI_PINS \
|
||
((1 << PIN_DT0) | (1 << PIN_DT1) | (1 << PIN_DT2) | (1 << PIN_DT3) | (1 << PIN_DT4) | (1 << PIN_DT5) | \
|
||
(1 << PIN_DT6) | (1 << PIN_DT7) | (1 << PIN_DP) | (1 << PIN_ATN) | (1 << PIN_RST) | (1 << PIN_ACK) | \
|
||
(1 << PIN_REQ) | (1 << PIN_MSG) | (1 << PIN_CD) | (1 << PIN_IO) | (1 << PIN_BSY) | (1 << PIN_SEL))
|
||
|
||
#define GPIO_INEDGE ((1 << PIN_BSY) | (1 << PIN_SEL) | (1 << PIN_ATN) | (1 << PIN_ACK) | (1 << PIN_RST))
|
||
|
||
#define GPIO_MCI ((1 << PIN_MSG) | (1 << PIN_CD) | (1 << PIN_IO))
|
||
|
||
//---------------------------------------------------------------------------
|
||
//
|
||
// Constant declarations (GIC)
|
||
//
|
||
//---------------------------------------------------------------------------
|
||
const static uint32_t ARM_GICD_BASE = 0xFF841000;
|
||
const static uint32_t ARM_GICC_BASE = 0xFF842000;
|
||
const static uint32_t ARM_GIC_END = 0xFF847FFF;
|
||
const static int GICD_CTLR = 0x000;
|
||
const static int GICD_IGROUPR0 = 0x020;
|
||
const static int GICD_ISENABLER0 = 0x040;
|
||
const static int GICD_ICENABLER0 = 0x060;
|
||
const static int GICD_ISPENDR0 = 0x080;
|
||
const static int GICD_ICPENDR0 = 0x0A0;
|
||
const static int GICD_ISACTIVER0 = 0x0C0;
|
||
const static int GICD_ICACTIVER0 = 0x0E0;
|
||
const static int GICD_IPRIORITYR0 = 0x100;
|
||
const static int GICD_ITARGETSR0 = 0x200;
|
||
const static int GICD_ICFGR0 = 0x300;
|
||
const static int GICD_SGIR = 0x3C0;
|
||
const static int GICC_CTLR = 0x000;
|
||
const static int GICC_PMR = 0x001;
|
||
const static int GICC_IAR = 0x003;
|
||
const static int GICC_EOIR = 0x004;
|
||
|
||
//---------------------------------------------------------------------------
|
||
//
|
||
// Constant declarations (GIC IRQ)
|
||
//
|
||
//---------------------------------------------------------------------------
|
||
const static int GIC_IRQLOCAL0 = (16 + 14);
|
||
const static int GIC_GPIO_IRQ = (32 + 116); // GPIO3
|
||
|
||
//---------------------------------------------------------------------------
|
||
//
|
||
// Class definition
|
||
//
|
||
//---------------------------------------------------------------------------
|
||
class GPIOBUS_Raspberry : public GPIOBUS
|
||
{
|
||
public:
|
||
GPIOBUS_Raspberry() = default;
|
||
~GPIOBUS_Raspberry() override = default;
|
||
bool Init(mode_e mode = mode_e::TARGET) override;
|
||
|
||
void Reset() override;
|
||
void Cleanup() override;
|
||
|
||
// Bus signal acquisition
|
||
uint32_t Acquire() override;
|
||
|
||
// Set ENB signal
|
||
void SetENB(bool ast) override;
|
||
|
||
// Get BSY signal
|
||
bool GetBSY() const override;
|
||
// Set BSY signal
|
||
void SetBSY(bool ast) override;
|
||
|
||
// Get SEL signal
|
||
bool GetSEL() const override;
|
||
// Set SEL signal
|
||
void SetSEL(bool ast) override;
|
||
|
||
// Get ATN signal
|
||
bool GetATN() const override;
|
||
// Set ATN signal
|
||
void SetATN(bool ast) override;
|
||
|
||
// Get ACK signal
|
||
bool GetACK() const override;
|
||
// Set ACK signal
|
||
void SetACK(bool ast) override;
|
||
|
||
// Get ACT signal
|
||
bool GetACT() const override;
|
||
// Set ACT signal
|
||
void SetACT(bool ast) override;
|
||
|
||
// Get RST signal
|
||
bool GetRST() const override;
|
||
// Set RST signal
|
||
void SetRST(bool ast) override;
|
||
|
||
// Get MSG signal
|
||
bool GetMSG() const override;
|
||
// Set MSG signal
|
||
void SetMSG(bool ast) override;
|
||
|
||
// Get CD signal
|
||
bool GetCD() const override;
|
||
// Set CD signal
|
||
void SetCD(bool ast) override;
|
||
|
||
// Get IO signal
|
||
bool GetIO() override;
|
||
// Set IO signal
|
||
void SetIO(bool ast) override;
|
||
|
||
// Get REQ signal
|
||
bool GetREQ() const override;
|
||
// Set REQ signal
|
||
void SetREQ(bool ast) override;
|
||
|
||
// Get DAT signal
|
||
uint8_t GetDAT() override;
|
||
// Set DAT signal
|
||
void SetDAT(uint8_t dat) override;
|
||
|
||
bool WaitREQ(bool ast) override
|
||
{
|
||
return WaitSignal(PIN_REQ, ast);
|
||
}
|
||
bool WaitACK(bool ast) override
|
||
{
|
||
return WaitSignal(PIN_ACK, ast);
|
||
}
|
||
static uint32_t bcm_host_get_peripheral_address();
|
||
|
||
unique_ptr<DataSample> GetSample(uint64_t timestamp) override
|
||
{
|
||
Acquire();
|
||
return make_unique<DataSample_Raspberry>(signals, timestamp);
|
||
}
|
||
|
||
protected:
|
||
// All bus signals
|
||
uint32_t signals = 0;
|
||
// GPIO input level
|
||
volatile uint32_t *level = nullptr;
|
||
|
||
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
|
||
|
||
// 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
|
||
|
||
static uint32_t get_dt_ranges(const char *filename, uint32_t offset);
|
||
|
||
uint32_t baseaddr = 0; // Base address
|
||
|
||
int rpitype = 0; // Type of Raspberry Pi
|
||
|
||
// GPIO register
|
||
volatile uint32_t *gpio = nullptr; // NOSONAR: volatile needed for register access
|
||
// PADS register
|
||
volatile uint32_t *pads = nullptr; // NOSONAR: volatile needed for register access
|
||
|
||
// Interrupt control register
|
||
volatile uint32_t *irpctl = nullptr;
|
||
|
||
// Interrupt enabled state
|
||
volatile uint32_t irptenb; // NOSONAR: volatile needed for register access
|
||
|
||
// QA7 register
|
||
volatile uint32_t *qa7regs = nullptr;
|
||
// Interupt control target CPU.
|
||
volatile int tintcore; // NOSONAR: volatile needed for register access
|
||
|
||
// Interupt control
|
||
volatile uint32_t tintctl; // NOSONAR: volatile needed for register access
|
||
// GICC priority setting
|
||
volatile uint32_t giccpmr; // NOSONAR: volatile needed for register access
|
||
|
||
#if !defined(__x86_64__) && !defined(__X86__)
|
||
// GIC Interrupt distributor register
|
||
volatile uint32_t *gicd = nullptr;
|
||
#endif
|
||
// GIC CPU interface register
|
||
volatile uint32_t *gicc = nullptr;
|
||
|
||
// RAM copy of GPFSEL0-4 values (GPIO Function Select)
|
||
array<uint32_t, 4> gpfsel;
|
||
|
||
#if SIGNAL_CONTROL_MODE == 0
|
||
// Data mask table
|
||
array<array<uint32_t, 256>, 3> tblDatMsk;
|
||
// Data setting table
|
||
array<array<uint32_t, 256>, 3> tblDatSet;
|
||
#else
|
||
// Data mask table
|
||
array<uint32_t, 256> tblDatMsk = {};
|
||
// Table setting table
|
||
array<uint32_t, 256> tblDatSet = {};
|
||
#endif
|
||
|
||
static const array<int, 19> SignalTable;
|
||
|
||
const static int GPIO_FSEL_0 = 0;
|
||
const static int GPIO_FSEL_1 = 1;
|
||
const static int GPIO_FSEL_2 = 2;
|
||
const static int GPIO_FSEL_3 = 3;
|
||
const static int GPIO_SET_0 = 7;
|
||
const static int GPIO_CLR_0 = 10;
|
||
const static int GPIO_LEV_0 = 13;
|
||
const static int GPIO_EDS_0 = 16;
|
||
const static int GPIO_REN_0 = 19;
|
||
const static int GPIO_FEN_0 = 22;
|
||
const static int GPIO_HEN_0 = 25;
|
||
const static int GPIO_LEN_0 = 28;
|
||
const static int GPIO_AREN_0 = 31;
|
||
const static int GPIO_AFEN_0 = 34;
|
||
const static int GPIO_PUD = 37;
|
||
const static int GPIO_CLK_0 = 38;
|
||
const static int GPIO_GPPINMUXSD = 52;
|
||
const static int GPIO_PUPPDN0 = 57;
|
||
const static int GPIO_PUPPDN1 = 58;
|
||
const static int GPIO_PUPPDN3 = 59;
|
||
const static int GPIO_PUPPDN4 = 60;
|
||
const static int PAD_0_27 = 11;
|
||
const static int IRPT_PND_IRQ_B = 0;
|
||
const static int IRPT_PND_IRQ_1 = 1;
|
||
const static int IRPT_PND_IRQ_2 = 2;
|
||
const static int IRPT_FIQ_CNTL = 3;
|
||
const static int IRPT_ENB_IRQ_1 = 4;
|
||
const static int IRPT_ENB_IRQ_2 = 5;
|
||
const static int IRPT_ENB_IRQ_B = 6;
|
||
const static int IRPT_DIS_IRQ_1 = 7;
|
||
const static int IRPT_DIS_IRQ_2 = 8;
|
||
const static int IRPT_DIS_IRQ_B = 9;
|
||
const static int QA7_CORE0_TINTC = 16;
|
||
const static int GPIO_IRQ = (32 + 20); // GPIO3
|
||
|
||
const static uint32_t IRPT_OFFSET = 0x0000B200;
|
||
const static uint32_t PADS_OFFSET = 0x00100000;
|
||
const static uint32_t GPIO_OFFSET = 0x00200000;
|
||
const static uint32_t QA7_OFFSET = 0x01000000;
|
||
};
|