mirror of
https://github.com/sanni/cartreader.git
synced 2024-09-21 15:49:45 +02:00
524 lines
13 KiB
C++
524 lines
13 KiB
C++
//******************************************
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// COLECOVISION MODULE
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//******************************************
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#ifdef enable_COLV
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// Coleco Colecovision
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// Cartridge Pinout
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// 30P 2.54mm pitch connector
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//
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// FRONT SIDE BACK SIDE
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// (EVEN) (ODD)
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// +-------+
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// /C000 -| 2 1 |- D2
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// D3 -| 4 3 |- D1
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// D4 -| 6 5 |- D0
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// D5 -| 8 7 |- A0
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// D6 -| 10 9 |- A1
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// D7 -| 12 11 |- A2
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// A11 -| 14 13 |- GND (SHLD)
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// A10 -| 16 15 |- A3
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// /8000 -| 18 17 |- A4
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// A14 -| 20 19 |- A13
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// /A000 -| 22 21 |- A5
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// A12 -| 24 23 |- A6
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// A9 -| 26 25 |- A7
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// A8 -| 28 27 |- /E000
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// VCC(+5V) -| 30 29 |- GND
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// +-------+
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// CONTROL PINS:
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// CHIP SELECT PINS
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// /8000(PH3) - CHIP 0 - SNES /CS
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// /A000(PH4) - CHIP 1 - SNES /IRQ
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// /C000(PH5) - CHIP 2 - SNES /WR
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// /E000(PH6) - CHIP 3 - SNES /RD
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byte COL[] = {8, 12, 16, 20, 24, 32};
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byte collo = 0; // Lowest Entry
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byte colhi = 5; // Highest Entry
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byte colsize;
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byte newcolsize;
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// EEPROM MAPPING
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// 08 ROM SIZE
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//******************************************
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// Menu
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//******************************************
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// Base Menu
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static const char colMenuItem1[] PROGMEM = "Select Cart";
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static const char colMenuItem2[] PROGMEM = "Read ROM";
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static const char colMenuItem3[] PROGMEM = "Set Size";
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static const char colMenuItem4[] PROGMEM = "Reset";
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static const char* const menuOptionsCOL[] PROGMEM = {colMenuItem1, colMenuItem2, colMenuItem3, colMenuItem4};
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void setup_COL()
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{
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// Set Address Pins to Output
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// Colecovision uses A0-A14 [A15-A23 UNUSED]
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//A0-A7
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DDRF = 0xFF;
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//A8-A15
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DDRK = 0xFF;
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//A16-A23
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DDRL = 0xFF;
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// Set Control Pins to Output
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// ---(PH0) ---(PH1) /8000(PH3) /A000(PH4) /C000(PH5) /E000(PH6)
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DDRH |= (1 << 0) | (1 << 1) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);
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// Set TIME(PJ0) to Output (UNUSED)
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DDRJ |= (1 << 0);
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// Set Pins (D0-D7) to Input
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DDRC = 0x00;
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// Setting Control Pins to HIGH
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// ---(PH0) ---(PH1) /8000(PH3) /A000(PH4) /C000(PH5) /E000(PH6)
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PORTH |= (1 << 0) | (1 << 1) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);
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// Set Unused Data Pins (PA0-PA7) to Output
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DDRA = 0xFF;
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// Set Unused Pins HIGH
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PORTA = 0xFF;
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PORTL = 0xFF; // A16-A23
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PORTJ |= (1 << 0); // TIME(PJ0)
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checkStatus_COL();
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strcpy(romName, "COLECO");
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mode = mode_COL;
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}
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void colMenu()
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{
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convertPgm(menuOptionsCOL, 4);
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uint8_t mainMenu = question_box(F("COLECOVISION MENU"), menuOptions, 4, 0);
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switch (mainMenu)
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{
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case 0:
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// Select Cart
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setCart_COL();
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setup_COL();
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break;
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case 1:
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// Read ROM
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sd.chdir("/");
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readROM_COL();
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sd.chdir("/");
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break;
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case 2:
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// Set Size
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setROMSize_COL();
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break;
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case 3:
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// reset
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resetArduino();
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break;
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}
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}
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//******************************************
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// READ CODE
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//******************************************
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// CHIP SELECT CONTROL PINS
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// /8000(PH3) - CHIP 0
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// /A000(PH4) - CHIP 1
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// /C000(PH5) - CHIP 2
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// /E000(PH6) - CHIP 3
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uint8_t readData_COL(uint32_t addr)
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{
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// SELECT ROM CHIP - PULL /CE LOW
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uint8_t chipdecode = ((addr >> 13) & 0x3);
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if (chipdecode == 3) // CHIP 3
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PORTH &= ~(1 << 6); // /E000 LOW (ENABLE)
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else if (chipdecode == 2) // CHIP 2
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PORTH &= ~(1 << 5); // /C000 LOW (ENABLE)
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else if (chipdecode == 1) // CHIP 1
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PORTH &= ~(1 << 4); // /A000 LOW (ENABLE)
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else // CHIP 0
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PORTH &= ~(1 << 3); // /8000 LOW (ENABLE)
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PORTF = addr & 0xFF; // A0-A7
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PORTK = (addr >> 8) & 0xFF; // A8-A15
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// LATCH ADDRESS - PULL /CE HIGH
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PORTH |= (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6); // ALL /CE HIGH (DISABLE)
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uint8_t ret = PINC;
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return ret;
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}
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void readSegment_COL(uint32_t startaddr, uint32_t endaddr)
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{
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for (uint32_t addr = startaddr; addr < endaddr; addr += 512) {
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for (int w = 0; w < 512; w++) {
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uint8_t temp = readData_COL(addr + w);
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sdBuffer[w] = temp;
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}
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myFile.write(sdBuffer, 512);
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}
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}
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void readROM_COL()
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{
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strcpy(fileName, romName);
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strcat(fileName, ".col");
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// create a new folder for storing rom file
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EEPROM_readAnything(0, foldern);
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// sprintf(folder, "COL/ROM/%s/%d", romName, foldern);
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sprintf(folder, "COL/ROM/%d", foldern);
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sd.mkdir(folder, true);
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sd.chdir(folder);
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display_Clear();
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print_Msg(F("Saving to "));
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print_Msg(folder);
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println_Msg(F("/..."));
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display_Update();
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// open file on sdcard
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if (!myFile.open(fileName, O_RDWR | O_CREAT))
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print_Error(F("Can't create file on SD"), true);
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// write new folder number back to EEPROM
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foldern++;
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EEPROM_writeAnything(0, foldern);
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// RESET ALL CS PINS HIGH (DISABLE)
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PORTH |= (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);
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readSegment_COL(0x8000, 0xA000); // 8K
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if (colsize > 0) {
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readSegment_COL(0xA000, 0xB000); // +4K = 12K
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if (colsize > 1) {
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readSegment_COL(0xB000, 0xC000); // +4K = 16K
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if (colsize > 2) {
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readSegment_COL(0xC000, 0xD000); // +4K = 20K
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if (colsize > 3) {
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readSegment_COL(0xD000, 0xE000); // +4K = 24K
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if (colsize > 4) {
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readSegment_COL(0xE000, 0x10000); // +8K = 32K
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}
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}
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}
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}
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}
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myFile.close();
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// RESET ALL CS PINS HIGH (DISABLE)
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PORTH |= (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);
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// Compare CRC32 to database and rename ROM if found
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compareCRC("colv.txt", 0, 1, 0);
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println_Msg(F(""));
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println_Msg(F("Press Button..."));
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display_Update();
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wait();
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}
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//******************************************
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// ROM SIZE
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//******************************************
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void setROMSize_COL()
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{
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#if (defined(enable_OLED) || defined(enable_LCD))
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display_Clear();
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if (collo == colhi)
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newcolsize = collo;
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else {
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int b = 0;
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int i = collo;
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display_Clear();
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print_Msg(F("ROM Size: "));
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println_Msg(COL[i]);
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println_Msg(F(""));
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#if defined(enable_OLED)
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println_Msg(F("Press left to Change"));
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println_Msg(F("and right to Select"));
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#elif defined(enable_LCD)
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println_Msg(F("Rotate to Change"));
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println_Msg(F("Press to Select"));
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#endif
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display_Update();
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while (1) {
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b = checkButton();
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if (b == 2) { // Previous (doubleclick)
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if (i == collo)
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i = colhi;
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else
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i--;
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// Only update display after input because of slow LCD library
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display_Clear();
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print_Msg(F("ROM Size: "));
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println_Msg(COL[i]);
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println_Msg(F(""));
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#if defined(enable_OLED)
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println_Msg(F("Press left to Change"));
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println_Msg(F("and right to Select"));
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#elif defined(enable_LCD)
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println_Msg(F("Rotate to Change"));
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println_Msg(F("Press to Select"));
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#endif
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display_Update();
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}
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if (b == 1) { // Next (press)
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if (i == colhi)
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i = collo;
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else
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i++;
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// Only update display after input because of slow LCD library
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display_Clear();
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print_Msg(F("ROM Size: "));
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println_Msg(COL[i]);
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println_Msg(F(""));
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#if defined(enable_OLED)
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println_Msg(F("Press left to Change"));
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println_Msg(F("and right to Select"));
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#elif defined(enable_LCD)
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println_Msg(F("Rotate to Change"));
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println_Msg(F("Press to Select"));
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#endif
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display_Update();
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}
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if (b == 3) { // Long Press - Execute (hold)
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newcolsize = i;
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break;
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}
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}
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display.setCursor(0, 56); // Display selection at bottom
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}
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print_Msg(F("ROM SIZE "));
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print_Msg(COL[newcolsize]);
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println_Msg(F("K"));
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display_Update();
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delay(1000);
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#else
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if (collo == colhi)
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newcolsize = collo;
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else {
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setrom:
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String sizeROM;
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for (int i = 0; i < (colhi - collo + 1); i++) {
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Serial.print(F("Select ROM Size: "));
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Serial.print(i);
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Serial.print(F(" = "));
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Serial.print(COL[i + collo]);
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Serial.println(F("K"));
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}
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Serial.print(F("Enter ROM Size: "));
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while (Serial.available() == 0) {}
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sizeROM = Serial.readStringUntil('\n');
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Serial.println(sizeROM);
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newcolsize = sizeROM.toInt() + collo;
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if (newcolsize > colhi) {
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Serial.println(F("SIZE NOT SUPPORTED"));
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Serial.println(F(""));
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goto setrom;
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}
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}
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Serial.print(F("ROM Size = "));
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Serial.print(COL[newcolsize]);
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Serial.println(F("K"));
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#endif
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EEPROM_writeAnything(8, newcolsize);
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colsize = newcolsize;
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}
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void checkStatus_COL()
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{
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EEPROM_readAnything(8, colsize);
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if (colsize > 5) {
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colsize = 0;
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EEPROM_writeAnything(8, colsize);
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}
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#if (defined(enable_OLED) || defined(enable_LCD))
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display_Clear();
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println_Msg(F("COLECOVISION READER"));
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println_Msg(F("CURRENT SETTINGS"));
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println_Msg(F(""));
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print_Msg(F("ROM SIZE: "));
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print_Msg(COL[colsize]);
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println_Msg(F("K"));
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println_Msg(F(""));
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println_Msg(F("Press Button..."));
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display_Update();
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wait();
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#else
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Serial.print(F("CURRENT ROM SIZE: "));
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Serial.print(COL[colsize]);
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Serial.println(F("K"));
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Serial.println(F(""));
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#endif
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}
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//******************************************
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// CART SELECT CODE
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//******************************************
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void setCart_COL() {
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//Search for CRC32 in file
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char gamename[100];
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char tempStr2[2];
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char crc_search[9];
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//go to root
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sd.chdir();
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// Open database
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if (myFile.open("colv.txt", O_READ)) {
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while (myFile.available()) {
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display_Clear();
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// Read game name
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get_line(gamename, &myFile, 42);
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// Read CRC32 checksum
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sprintf(checksumStr, "%c", myFile.read());
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for (byte i = 0; i < 7; i++) {
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sprintf(tempStr2, "%c", myFile.read());
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strcat(checksumStr, tempStr2);
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}
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// Skip over semicolon
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myFile.seekSet(myFile.curPosition() + 1);
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// Read CRC32 of first 512 bytes
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sprintf(crc_search, "%c", myFile.read());
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for (byte i = 0; i < 7; i++) {
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sprintf(tempStr2, "%c", myFile.read());
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strcat(crc_search, tempStr2);
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}
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// Skip over semicolon
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myFile.seekSet(myFile.curPosition() + 1);
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// Read rom size
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// Read the next ascii character and subtract 48 to convert to decimal
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cartSize = myFile.read() - 48;
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// Remove leading 0 for single digit cart sizes
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if (cartSize != 0) {
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cartSize = cartSize * 10 + myFile.read() - 48;
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}
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else {
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cartSize = myFile.read() - 48;
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}
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// Skip rest of line
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myFile.seekSet(myFile.curPosition() + 2);
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// Skip every 3rd line
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skip_line(&myFile);
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println_Msg(F("Select your cartridge"));
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println_Msg(F(""));
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println_Msg(gamename);
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print_Msg(F("Size: "));
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print_Msg(cartSize);
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println_Msg(F("KB"));
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println_Msg(F(""));
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#if defined(enable_OLED)
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println_Msg(F("Press left to Change"));
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println_Msg(F("and right to Select"));
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#elif defined(enable_LCD)
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println_Msg(F("Rotate to Change"));
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println_Msg(F("Press to Select"));
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#elif defined(SERIAL_MONITOR)
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println_Msg(F("U/D to Change"));
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println_Msg(F("Space to Select"));
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#endif
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display_Update();
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int b = 0;
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while (1) {
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// Check button input
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b = checkButton();
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// Next
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if (b == 1) {
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break;
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}
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// Previous
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else if (b == 2) {
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for (byte count_newline = 0; count_newline < 7; count_newline++) {
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while (1) {
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if (myFile.curPosition() == 0) {
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break;
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}
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else if (myFile.peek() == '\n') {
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myFile.seekSet(myFile.curPosition() - 1);
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break;
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}
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else {
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myFile.seekSet(myFile.curPosition() - 1);
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}
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}
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}
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if (myFile.curPosition() != 0)
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myFile.seekSet(myFile.curPosition() + 2);
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break;
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}
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// Selection
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else if (b == 3) {
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//byte COL[] = {8, 12, 16, 20, 24, 32};
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switch (cartSize) {
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case 8:
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colsize = 0;
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break;
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case 12:
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colsize = 1;
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break;
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case 16:
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colsize = 2;
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break;
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case 20:
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colsize = 3;
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break;
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case 24:
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colsize = 4;
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break;
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case 32:
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colsize = 5;
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break;
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default:
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colsize = 0;
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break;
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}
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EEPROM_writeAnything(8, colsize);
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myFile.close();
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break;
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}
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}
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}
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}
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else {
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println_Msg(F("Database file not found"));
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return 0;
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}
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}
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#endif
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