Macintosh-HW/greenscsi
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v1.1

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ztto 2019-04-19 00:35:45 +09:00
parent 89b0d9305f
commit bcca8d66e1
5 changed files with 116 additions and 106 deletions
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222
ArdSCSino.ino
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@ -2,18 +2,17 @@
* SCSI-HDデバイスエミュレータ
*/
#include <SPI.h>
#include <SdFat.h>
#include "SdFat.h"
//ENABLE_EXTENDED_TRANSFER_CLASSを1に設定する
//libraries/SdFat/SdFatConfig.h
SPIClass SPI_2(2);
//SdFat SD(2);
SdFatEX SD(&SPI_2);
SPIClass SPI_1(1);
SdFatEX SD(&SPI_1);
//#define SPI_SPEED SD_SCK_MHZ(18)
#define LOG(XX) //Serial.println(XX)
#define LOGHEX(XX) //Serial.println(XX, HEX)
#define LOG(XX) //Serial.print(XX)
#define LOGHEX(XX) //Serial.print(XX, HEX)
#define LOGN(XX) //Serial.println(XX)
#define LOGHEXN(XX) //Serial.println(XX, HEX)
#define high 0
#define low 1
@ -25,27 +24,27 @@ SdFatEX SD(&SPI_2);
#define gpio_write(pin,val) gpio_write_bit(PIN_MAP[pin].gpio_device, PIN_MAP[pin].gpio_bit, val)
#define gpio_read(pin) gpio_read_bit(PIN_MAP[pin].gpio_device, PIN_MAP[pin].gpio_bit)
//#define DB0 PA0 // SCSI:DB0
//#define DB1 PA1 // SCSI:DB1
//#define DB2 PA2 // SCSI:DB2
//#define DB3 PA3 // SCSI:DB3
//#define DB4 PA4 // SCSI:DB4
//#define DB5 PA5 // SCSI:DB5
//#define DB6 PA6 // SCSI:DB6
//#define DB7 PA7 // SCSI:DB7
//#define DBP PA8 // SCSI:DBP
//#define DB0 PB8 // SCSI:DB0
//#define DB1 PB9 // SCSI:DB1
//#define DB2 PB10 // SCSI:DB2
//#define DB3 PB11 // SCSI:DB3
//#define DB4 PB12 // SCSI:DB4
//#define DB5 PB13 // SCSI:DB5
//#define DB6 PB14 // SCSI:DB6
//#define DB7 PB15 // SCSI:DB7
//#define DBP PB0 // SCSI:DBP
#define ATN PB0 // SCSI:ATN
#define BSY PB1 // SCSI:BSY
#define ACK PB10 // SCSI:ACK
#define RST PB11 // SCSI:RST
#define MSG PB5 // SCSI:MSG
#define SEL PB6 // SCSI:SEL
#define CD PB7 // SCSI:C/D
#define REQ PB8 // SCSI:REQ
#define IO PB9 // SCSI:I/O
#define ATN PA8 // SCSI:ATN
#define BSY PA9 // SCSI:BSY
#define ACK PA10 // SCSI:ACK
#define RST PA15 // SCSI:RST
#define MSG PB3 // SCSI:MSG
#define SEL PB4 // SCSI:SEL
#define CD PB5 // SCSI:C/D
#define REQ PB6 // SCSI:REQ
#define IO PB7 // SCSI:I/O
#define SD_CS PB12 // SDCARD:CS
#define SD_CS PA4 // SDCARD:CS
#define LED PC13 // LED
#define SCSIID 0 // SCSI-ID
@ -67,18 +66,23 @@ bool m_msb[256];
*/
inline byte readIO(void)
{
//GPIO(SCSI BUS)初期化
//ポート設定レジスタ（下位）
// GPIOB->regs->CRL |= 0x000000008; // SET INPUT W/ PUPD on PAB-PB0
//ポート設定レジスタ（上位）
GPIOB->regs->CRH = 0x88888888; // SET INPUT W/ PUPD on PB15-PB8
// GPIOB->regs->ODR = 0x0000FF00; // SET PULL-UPs on PB15-PB8
//ポート入力データレジスタ
uint32 ret = GPIOB->regs->IDR;
byte bret = 0x00;
GPIOA->regs->CRL = 0x88888888; // Configure GPIOA[7:0]
uint32 ret = GPIOA->regs->IDR;
bret |= ((!bitRead(ret,7)) << 7);
bret |= ((!bitRead(ret,6)) << 6);
bret |= ((!bitRead(ret,5)) << 5);
bret |= ((!bitRead(ret,4)) << 4);
bret |= ((!bitRead(ret,3)) << 3);
bret |= ((!bitRead(ret,2)) << 2);
bret |= ((!bitRead(ret,1)) << 1);
bret |= ((!bitRead(ret,0)) << 0);
bret |= (!(ret & (1<<15))) << 7;
bret |= (!(ret & (1<<14))) << 6;
bret |= (!(ret & (1<<13))) << 5;
bret |= (!(ret & (1<<12))) << 4;
bret |= (!(ret & (1<<11))) << 3;
bret |= (!(ret & (1<<10))) << 2;
bret |= (!(ret & (1<<9))) << 1;
bret |= (!(ret & (1<<8))) << 0;
return bret;
}
@ -87,61 +91,63 @@ inline byte readIO(void)
*/
inline void writeIO(byte v)
{
// GPIOA->regs->CRL = 0x11111111; // Configure GPIOA PP[7:0]10MHz
GPIOA->regs->CRL = 0x33333333; // Configure GPIOA PP[7:0]50MHz
GPIOA->regs->CRH = 0x00000003; // Configure GPIOA PP[16:8]50MHz
//GPIO(SCSI BUS)初期化
//ポート設定レジスタ（下位）
GPIOB->regs->CRL |= 0x00000003; // SET OUTPUT W/ PUPD on PA7-PB0 50MHz
//ポート設定レジスタ（上位）
GPIOB->regs->CRH = 0x33333333; // SET OUTPUT W/ PUPD on PB15-PB8 50MHz
// GPIOB->regs->ODR != 0x0000FF00; // SET PULL-UPs on PB15-PB8
uint32 retL = 0x00;
uint32 retH = 0x00;
if(!parity(v)) {
bitWrite(retL, 8, 1);
retL |= (1<<0);
} else {
bitWrite(retH, 8, 1);
retH |= (1<<0);
}
if(v & ( 1 << 7 )) {
bitWrite(retL, 7, 1);
retL |= (1<<15);
} else {
bitWrite(retH, 7, 1);
}
retH |= (1<<15);
}
if(v & ( 1 << 6 )) {
bitWrite(retL, 6, 1);
retL |= (1<<14);
} else {
bitWrite(retH, 6, 1);
retH |= (1<<14);
}
if(v & ( 1 << 5 )) {
bitWrite(retL, 5, 1);
retL |= (1<<13);
} else {
bitWrite(retH, 5, 1);
retH |= (1<<13);
}
if(v & ( 1 << 4 )) {
bitWrite(retL, 4, 1);
retL |= (1<<12);
} else {
bitWrite(retH, 4, 1);
retH |= (1<<12);
}
if(v & ( 1 << 3 )) {
bitWrite(retL, 3, 1);
retL |= (1<<11);
} else {
bitWrite(retH, 3, 1);
retH |= (1<<11);
}
if(v & ( 1 << 2 )) {
bitWrite(retL, 2, 1);
retL |= (1<<10);
} else {
bitWrite(retH, 2, 1);
retH |= (1<<10);
}
if(v & ( 1 << 1 )) {
bitWrite(retL, 1, 1);
retL |= (1<<9);
} else {
bitWrite(retH, 1, 1);
retH |= (1<<9);
}
if(v & ( 1 << 0 )) {
bitWrite(retL, 0, 1);
retL |= (1<<8);
} else {
bitWrite(retH, 0, 1);
retH |= (1<<8);
}
//ビットがLOWに設定される
GPIOA->regs->BRR = retL ;
GPIOB->regs->BRR = retL ;
// ビットがHIGHに設定される
GPIOA->regs->BSRR = retH ;
GPIOB->regs->BSRR = retH ;
}
/*
@ -166,19 +172,22 @@ void setup()
{
// PA15 / PB3 / PB4 が使えない
// JTAG デバッグ用に使われているからです。
// disableDebugPorts();
// afio_cfg_debug_ports(AFIO_DEBUG_NONE);
disableDebugPorts();
//シリアル初期化
Serial.begin(9600);
while (!Serial);
//Serial.begin(9600);
//while (!Serial);
//PINの初期化
gpio_mode(LED, GPIO_OUTPUT_OD);
gpio_write(LED, low);
//GPIO(SCSI BUS)初期化
GPIOA->regs->CRL = 0x888888888; // Configure GPIOA[8:0]
//GPIO(SCSI BUS)初期化
//ポート設定レジスタ（下位）
// GPIOB->regs->CRL |= 0x000000008; // SET INPUT W/ PUPD on PAB-PB0
//ポート設定レジスタ（上位）
GPIOB->regs->CRH = 0x88888888; // SET INPUT W/ PUPD on PB15-PB8
// GPIOB->regs->ODR = 0x0000FF00; // SET PULL-UPs on PB15-PB8
gpio_mode(ATN, GPIO_INPUT_PU);
gpio_mode(BSY, GPIO_INPUT_PU);
@ -204,7 +213,7 @@ void setup()
onFalseInit();
}
//HDイメージファイル
m_file = SD.open(HDIMG_FILE, O_READ | O_WRITE);
m_file = SD.open(HDIMG_FILE, O_RDWR);
if(!m_file) {
Serial.println("Error: open hdimg");
onFalseInit();
@ -240,7 +249,7 @@ void onBusReset(void)
if(isHigh(gpio_read(RST))) {
delayMicroseconds(20);
if(isHigh(gpio_read(RST))) {
LOG("BusReset!");
LOGN("BusReset!");
m_isBusReset = true;
}
}
@ -293,7 +302,7 @@ void writeHandshake(byte d)
*/
void writeDataPhase(int len, byte* p)
{
LOG("DATAIN PHASE");
LOGN("DATAIN PHASE");
gpio_write(MSG, low);
gpio_write(CD, low);
gpio_write(IO, high);
@ -311,7 +320,7 @@ void writeDataPhase(int len, byte* p)
*/
void writeDataPhaseSD(uint32_t adds, uint32_t len)
{
LOG("DATAIN PHASE(SD)");
LOGN("DATAIN PHASE(SD)");
uint32_t pos = adds * BLOCKSIZE;
m_file.seek(pos);
gpio_write(MSG, low);
@ -334,7 +343,7 @@ void writeDataPhaseSD(uint32_t adds, uint32_t len)
*/
void readDataPhaseSD(uint32_t adds, uint32_t len)
{
LOG("DATAOUT PHASE(SD)");
LOGN("DATAOUT PHASE(SD)");
uint32_t pos = adds * BLOCKSIZE;
m_file.seek(pos);
gpio_write(MSG, low);
@ -409,9 +418,9 @@ void onReadCapacityCommand(byte pmi)
*/
byte onReadCommand(uint32_t adds, uint32_t len)
{
LOG("-R");
LOGHEX(adds);
LOGHEX(len);
LOGN("-R");
LOGHEXN(adds);
LOGHEXN(len);
gpio_write(LED, high);
writeDataPhaseSD(adds, len);
gpio_write(LED, low);
@ -423,9 +432,9 @@ byte onReadCommand(uint32_t adds, uint32_t len)
*/
byte onWriteCommand(uint32_t adds, uint32_t len)
{
LOG("-W");
LOGHEX(adds);
LOGHEX(len);
LOGN("-W");
LOGHEXN(adds);
LOGHEXN(len);
gpio_write(LED, high);
readDataPhaseSD(adds, len);
gpio_write(LED, low);
@ -488,7 +497,7 @@ void onModeSenseCommand(byte dbd, int pageCode, uint32_t len)
*/
void MsgIn2(int msg)
{
LOG("MsgIn2");
LOGN("MsgIn2");
gpio_write(MSG, high);
gpio_write(CD, high);
gpio_write(IO, high);
@ -500,7 +509,7 @@ void MsgIn2(int msg)
*/
void MsgOut2()
{
LOG("MsgOut2");
LOGN("MsgOut2");
gpio_write(MSG, high);
gpio_write(CD, high);
gpio_write(IO, low);
@ -533,7 +542,7 @@ void loop()
return;
}
LOG("Selection");
LOGN("Selection");
m_isBusReset = false;
// セレクトされたらBSYを-にする
gpio_mode(BSY, GPIO_OUTPUT_PP);
@ -593,7 +602,7 @@ void loop()
}
}
LOG("Command");
LOGN("Command");
gpio_write(MSG, low);
gpio_write(CD, high);
gpio_write(IO, low);
@ -622,73 +631,74 @@ void loop()
cmd[i] = readHandshake();
LOGHEX(cmd[i]);
}
LOGN("");
switch(cmd[0]) {
case 0x00:
LOG("[Test Unit]");
LOGN("[Test Unit]");
break;
case 0x01:
LOG("[Rezero Unit]");
LOGN("[Rezero Unit]");
break;
case 0x03:
LOG("[RequestSense]");
LOGN("[RequestSense]");
onRequestSenseCommand(cmd[4]);
break;
case 0x04:
LOG("[FormatUnit]");
LOGN("[FormatUnit]");
break;
case 0x06:
LOG("[FormatUnit]");
LOGN("[FormatUnit]");
break;
case 0x07:
LOG("[ReassignBlocks]");
LOGN("[ReassignBlocks]");
break;
case 0x08:
LOG("[Read6]");
LOGN("[Read6]");
sts = onReadCommand((((uint32_t)cmd[1] & 0x1F) << 16) | ((uint32_t)cmd[2] << 8) | cmd[3], (cmd[4] == 0) ? 0x100 : cmd[4]);
break;
case 0x0A:
LOG("[Write6]");
LOGN("[Write6]");
sts = onWriteCommand((((uint32_t)cmd[1] & 0x1F) << 16) | ((uint32_t)cmd[2] << 8) | cmd[3], (cmd[4] == 0) ? 0x100 : cmd[4]);
break;
case 0x0B:
LOG("[Seek6]");
LOGN("[Seek6]");
break;
case 0x12:
LOG("[Inquiry]");
LOGN("[Inquiry]");
onInquiryCommand(cmd[4]);
break;
case 0x1A:
LOG("[ModeSense6]");
LOGN("[ModeSense6]");
onModeSenseCommand(cmd[1]&0x80, cmd[2] & 0x3F, cmd[4]);
break;
case 0x1B:
LOG("[StartStopUnit]");
LOGN("[StartStopUnit]");
break;
case 0x1E:
LOG("[PreAllowMed.Removal]");
LOGN("[PreAllowMed.Removal]");
break;
case 0x25:
LOG("[ReadCapacity]");
LOGN("[ReadCapacity]");
onReadCapacityCommand(cmd[8]);
break;
case 0x28:
LOG("[Read10]");
LOGN("[Read10]");
sts = onReadCommand(((uint32_t)cmd[2] << 24) | ((uint32_t)cmd[3] << 16) | ((uint32_t)cmd[4] << 8) | cmd[5], ((uint32_t)cmd[7] << 8) | cmd[8]);
break;
case 0x2A:
LOG("[Write10]");
LOGN("[Write10]");
sts = onWriteCommand(((uint32_t)cmd[2] << 24) | ((uint32_t)cmd[3] << 16) | ((uint32_t)cmd[4] << 8) | cmd[5], ((uint32_t)cmd[7] << 8) | cmd[8]);
break;
case 0x2B:
LOG("[Seek10]");
LOGN("[Seek10]");
break;
case 0x5A:
LOG("[ModeSense10]");
LOGN("[ModeSense10]");
onModeSenseCommand(cmd[1] & 0x80, cmd[2] & 0x3F, ((uint32_t)cmd[7] << 8) | cmd[8]);
break;
default:
LOG("[*Unknown]");
LOGN("[*Unknown]");
sts = 2;
m_senseKey = 5;
break;
@ -697,7 +707,7 @@ void loop()
goto BusFree;
}
LOG("Sts");
LOGN("Sts");
gpio_write(MSG, low);
gpio_write(CD, high);
gpio_write(IO, high);
@ -706,14 +716,14 @@ void loop()
goto BusFree;
}
LOG("MsgIn");
LOGN("MsgIn");
gpio_write(MSG, high);
gpio_write(CD, high);
gpio_write(IO, high);
writeHandshake(msg);
BusFree:
LOG("BusFree");
LOGN("BusFree");
m_isBusReset = false;
gpio_write(REQ, low);
gpio_write(MSG, low);

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