mirror of https://github.com/sanni/cartreader.git
399 lines
9.0 KiB
C++
399 lines
9.0 KiB
C++
//******************************************
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// WSV MODULE
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//******************************************
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#ifdef ENABLE_WSV
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// Watara Supervision
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// Cartridge Pinout
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// 40P 2.5mm pitch connector
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//
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// BACK LABEL
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// SIDE SIDE
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// +-------+
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// /RD -| 1 40 |- +5V
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// A0 -| 2 39 |- nc
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// A1 -| 3 38 |- nc
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// A2 -| 4 37 |- nc
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// A3 -| 5 36 |- nc
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// A4 -| 6 35 |- /WR
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// A5 -| 7 34 |- D0
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// A6 -| 8 33 |- D1
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// A7 -| 9 32 |- D2
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// A8 -| 10 31 |- D3
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// A9 -| 11 30 |- D4
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// A10 -| 12 29 |- D5
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// A11 -| 13 28 |- D6
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// A12 -| 14 27 |- D7
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// A13 -| 15 26 |- nc
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// A14 -| 16 25 |- nc
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// A15 -| 17 24 |- L1
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// A16 -| 18 23 |- L2
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// L3 -| 19 22 |- GND
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// L0 -| 20 21 |- PWR GND
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// +-------+
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//
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// L3 - L0 are the Link Port's I/O - only the 'MAGNUM' variant
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// routed these to the cartridge slot as additional banking bits.
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//
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// CONTROL PINS:
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// /WR - (PH5)
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// /RD - (PH6)
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const word WSV[] PROGMEM = { 32, 64, 512 };
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byte wsvlo = 0; // Lowest Entry
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byte wsvhi = 2; // Highest Entry
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byte wsvsize;
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// EEPROM MAPPING
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// 08 ROM SIZE
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//******************************************
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// SETUP
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//******************************************
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void setup_WSV() {
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// Request 3.3V
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setVoltage(VOLTS_SET_3V3);
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// Set Address Pins to Output
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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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//BA0-BA7 (BA5-BA7 UNUSED)
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DDRL = 0xFF;
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//PA0-PA7 (UNUSED)
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DDRA = 0xFF;
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// Set Data Pins (D0-D7) to Input
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// D0 - D7
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DDRC = 0x00;
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// Set Control Pins to Output
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// WR(PH5) RD(PH6)
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// DDRH |= (1 << 5) | (1 << 6);
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// ---(PH0) ---(PH1) ---(PH3) ---(PH4) /WR(PH5) /RD(PH6)
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DDRH |= (1 << 0) | (1 << 1) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);
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// Switch WR(PH5) to HIGH
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// PORTH |= (1 << 5);
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// Switch RD(PH6) to LOW
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// PORTH &= ~(1 << 6);
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// Setting Control Pins to HIGH
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// ---(PH0) ---(PH1) ---(PH3) ---(PH4) /WR(PH5)
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PORTH |= (1 << 0) | (1 << 1) | (1 << 3) | (1 << 4) | (1 << 5);
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// Switch RD(PH6) to LOW
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PORTH &= ~(1 << 6);
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// Set Unused Pins HIGH
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PORTL = 0xE0;
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PORTA = 0xFF;
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PORTJ |= (1 << 0); // TIME(PJ0)
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checkStatus_WSV();
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strcpy(romName, "SUPERVISION");
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mode = CORE_WSV;
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}
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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* const menuOptionsSV[] PROGMEM = { FSTRING_SELECT_CART, FSTRING_READ_ROM, FSTRING_SET_SIZE, FSTRING_RESET };
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void wsvMenu() {
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convertPgm(menuOptionsSV, 4);
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uint8_t mainMenu = question_box(F("SUPERVISION MENU"), menuOptions, 4, 0);
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switch (mainMenu) {
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case 0:
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// Select Cart
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setCart_WSV();
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setup_WSV();
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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_WSV();
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sd.chdir("/");
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break;
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case 2:
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setROMSize_WSV();
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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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// LOW LEVEL FUNCTIONS
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//******************************************
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// WRITE
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void controlOut_WSV() {
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// Switch RD(PH6) to HIGH
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PORTH |= (1 << 6);
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// Switch WR(PH5) to LOW
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PORTH &= ~(1 << 5);
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}
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// READ
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void controlIn_WSV() {
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// Switch WR(PH5) to HIGH
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PORTH |= (1 << 5);
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// Switch RD(PH6) to LOW
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PORTH &= ~(1 << 6);
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}
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void dataIn_WSV() {
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DDRC = 0x00;
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}
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void dataOut_WSV() {
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DDRC = 0xFF;
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}
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uint8_t readByte_WSV(uint32_t addr) {
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PORTF = addr & 0xFF;
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PORTK = (addr >> 8) & 0xFF;
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PORTL = (addr >> 16) & 0xFF;
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// Wait for data bus
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// 6 x 62.5ns = 375ns
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NOP;
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NOP;
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NOP;
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NOP;
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NOP;
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NOP;
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uint8_t ret = PINC;
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NOP;
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return ret;
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}
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//******************************************
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// READ CODE
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//******************************************
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void readROM_WSV() {
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createFolder("WSV", "ROM", romName, "sv");
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display_Clear();
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print_STR(saving_to_STR, 0);
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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_FatalError(create_file_STR);
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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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// start reading rom
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dataIn_WSV();
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controlIn_WSV();
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romSize = pgm_read_word(&(WSV[wsvsize]));
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uint32_t romStart = 0;
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if (romSize < 64)
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romStart = 0x8000;
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uint32_t romEnd = (uint32_t)romSize * 0x400;
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for (uint32_t addr = 0; addr < romEnd; addr += 512) {
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for (uint16_t w = 0; w < 512; w++)
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sdBuffer[w] = readByte_WSV(romStart + addr + w);
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myFile.write(sdBuffer, 512);
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}
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myFile.close();
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// Compare CRC32 to database and rename ROM if found
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// Arguments: database name, precalculated crc string or 0 to calculate, rename rom or not, starting offset
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compareCRC("wsv.txt", 0, 1, 0);
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println_Msg(FS(FSTRING_EMPTY));
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// Prints string out of the common strings array either with or without newline
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print_STR(press_button_STR, 1);
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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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#if (defined(ENABLE_OLED) || defined(ENABLE_LCD))
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void printRomSize_WSV(int index) {
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display_Clear();
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print_Msg(F("ROM Size: "));
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println_Msg(pgm_read_word(&(WSV[index])));
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}
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#endif
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void setROMSize_WSV() {
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byte newwsvsize;
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#if (defined(ENABLE_OLED) || defined(ENABLE_LCD))
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display_Clear();
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if (wsvlo == wsvhi)
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newwsvsize = wsvlo;
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else {
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newwsvsize = navigateMenu(wsvlo, wsvhi, &printRomSize_WSV);
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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(pgm_read_word(&(WSV[newwsvsize])));
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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 (wsvlo == wsvhi)
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newwsvsize = wsvlo;
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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 < (wsvhi - wsvlo + 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(pgm_read_word(&(WSV[i + wsvlo])));
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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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newwsvsize = sizeROM.toInt() + wsvlo;
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if (newwsvsize > wsvhi) {
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Serial.println(F("SIZE NOT SUPPORTED"));
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Serial.println(FS(FSTRING_EMPTY));
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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(pgm_read_word(&(WSV[newwsvsize])));
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Serial.println(F("K"));
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#endif
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EEPROM_writeAnything(8, newwsvsize);
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wsvsize = newwsvsize;
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}
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void checkStatus_WSV() {
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EEPROM_readAnything(8, wsvsize);
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if (wsvsize > 2) {
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wsvsize = 1; // default 64K
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EEPROM_writeAnything(8, wsvsize);
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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("WATARA SUPERVISION"));
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println_Msg(FS(FSTRING_CURRENT_SETTINGS));
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println_Msg(FS(FSTRING_EMPTY));
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print_Msg(F("ROM SIZE: "));
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print_Msg(pgm_read_word(&(WSV[wsvsize])));
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println_Msg(F("K"));
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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(pgm_read_word(&(WSV[wsvsize])));
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Serial.println(F("K"));
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Serial.println(FS(FSTRING_EMPTY));
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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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struct database_entry_WSV {
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char crc_search[9];
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byte gameSize;
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};
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void readDataLine_WSV(FsFile& database, void* entry) {
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struct database_entry_WSV* castEntry = (database_entry_WSV*)entry;
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// Read CRC32 checksum
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for (byte i = 0; i < 8; i++) {
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checksumStr[i] = char(database.read());
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}
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// Skip over semicolon
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database.seekCur(1);
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// Read CRC32 of first 512 bytes
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for (byte i = 0; i < 8; i++) {
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castEntry->crc_search[i] = char(database.read());
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}
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// Skip over semicolon
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database.seekCur(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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castEntry->gameSize = ((database.read() - 48) * 10) + (database.read() - 48);
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// Skip rest of line
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database.seekCur(2);
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}
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void printDataLine_WSV(void* entry) {
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struct database_entry_WSV* castEntry = (database_entry_WSV*)entry;
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print_Msg(F("Size: "));
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if (castEntry->gameSize == 51)
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print_Msg(F("512"));
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else
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print_Msg(castEntry->gameSize);
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println_Msg(F("KB"));
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}
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void setCart_WSV() {
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//go to root
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sd.chdir();
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struct database_entry_WSV entry;
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// Select starting letter
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byte myLetter = starting_letter();
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// Open database
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if (myFile.open("wsv.txt", O_READ)) {
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seek_first_letter_in_database(myFile, myLetter);
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if(checkCartSelection(myFile, &readDataLine_WSV, &entry, &printDataLine_WSV)) {
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//word WSV[] = {32,64,512};
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switch (entry.gameSize) {
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case 32:
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wsvsize = 0;
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break;
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case 64:
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wsvsize = 1;
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break;
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case 51:
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wsvsize = 2;
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break;
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}
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EEPROM_writeAnything(8, wsvsize);
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}
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} else {
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print_FatalError(FS(FSTRING_DATABASE_FILE_NOT_FOUND));
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}
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}
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#endif
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//******************************************
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// End of File
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//******************************************
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