mirror of https://github.com/sanni/cartreader.git
734 lines
17 KiB
C++
734 lines
17 KiB
C++
//******************************************
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// GB SMART MODULE
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// Supports 32M cart with LH28F016SUT flash
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//******************************************
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#ifdef ENABLE_GBX
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#define GB_SMART_GAMES_PER_PAGE 6
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/******************************************
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Menu
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*****************************************/
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// GB Smart menu items
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static const char gbSmartMenuItem1[] PROGMEM = "Game Menu";
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static const char gbSmartMenuItem2[] PROGMEM = "Flash Menu";
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static const char *const menuOptionsGBSmart[] PROGMEM = { gbSmartMenuItem1, gbSmartMenuItem2, FSTRING_RESET };
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static const char gbSmartFlashMenuItem1[] PROGMEM = "Read Flash";
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static const char gbSmartFlashMenuItem2[] PROGMEM = "Write Flash";
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static const char gbSmartFlashMenuItem3[] PROGMEM = "Back";
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static const char *const menuOptionsGBSmartFlash[] PROGMEM = { gbSmartFlashMenuItem1, gbSmartFlashMenuItem2, gbSmartFlashMenuItem3 };
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static const char gbSmartGameMenuItem1[] PROGMEM = "Read Game";
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static const char gbSmartGameMenuItem4[] PROGMEM = "Switch Game";
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static const char *const menuOptionsGBSmartGame[] PROGMEM = { gbSmartGameMenuItem1, FSTRING_READ_SAVE, FSTRING_WRITE_SAVE, gbSmartGameMenuItem4, FSTRING_RESET };
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struct GBSmartGameInfo {
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uint8_t start_bank;
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uint8_t rom_type;
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uint8_t rom_size;
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uint8_t sram_size;
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char title[16];
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};
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uint32_t gbSmartSize = 32 * 131072;
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uint16_t gbSmartBanks = 256;
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uint8_t gbSmartBanksPerFlashChip = 128;
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uint8_t gbSmartBanksPerFlashBlock = 4;
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uint32_t gbSmartFlashBlockSize = (gbSmartBanksPerFlashBlock << 14);
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uint8_t gbSmartRomSizeGB = 0x07;
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uint8_t gbSmartSramSizeGB = 0x04;
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uint8_t gbSmartFlashSizeGB = 0x06;
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byte signature[48];
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uint16_t gameMenuStartBank;
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// Compare checksum
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boolean compare_checksum_GBS() {
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println_Msg(F("Calculating Checksum"));
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display_Update();
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strcpy(fileName, romName);
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strcat(fileName, ".GB");
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// last used rom folder
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EEPROM_readAnything(0, foldern);
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sprintf(folder, "GB/ROM/%s/%d", romName, foldern - 1);
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char calcsumStr[5];
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sprintf(calcsumStr, "%04X", calc_checksum_GB(fileName));
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if (strcmp(calcsumStr, checksumStr) == 0) {
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print_Msg(F("Result: "));
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println_Msg(calcsumStr);
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println_Msg(F("Checksum matches"));
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display_Update();
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return 1;
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} else {
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print_Msg(F("Result: "));
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println_Msg(calcsumStr);
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print_Error(F("Checksum Error"));
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return 0;
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}
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}
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byte readByte_GBS(word myAddress) {
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PORTF = myAddress & 0xFF;
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PORTK = (myAddress >> 8) & 0xFF;
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__asm__("nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t");
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// Switch CS(PH3) and RD(PH6) to LOW
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PORTH &= ~((1 << 3) | (1 << 6));
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__asm__("nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t");
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// Read
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byte tempByte = PINC;
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// Switch CS(PH3) and RD(PH6) to HIGH
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PORTH |= (1 << 3) | (1 << 6);
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__asm__("nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t");
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return tempByte;
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}
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void setup_GBSmart() {
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// Request 5V
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setVoltage(VOLTS_SET_5V);
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// take from setup_GB
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// Set RST(PH0) to Input
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DDRH &= ~(1 << 0);
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// Activate Internal Pullup Resistors
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PORTH |= (1 << 0);
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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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// Set Control Pins to Output CS(PH3) WR(PH5) RD(PH6) AUDIOIN(PH4) RESET(PH0)
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DDRH |= (1 << 0) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);
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// Output a high signal on all pins, pins are active low therefore everything is disabled now
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PORTH |= (1 << 0) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6);
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// Set Data Pins (D0-D7) to Input
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DDRC = 0x00;
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delay(400);
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gbSmartRemapStartBank(0x00, 0x00, 0x00);
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getCartInfo_GB();
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for (byte i = 0; i < 0x30; i++)
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signature[i] = readByte_GBS(0x0104 + i);
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gameMenuStartBank = 0x02;
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display_Clear();
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display_Update();
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}
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void gbSmartMenu() {
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uint8_t mainMenu;
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// Copy menuOptions out of progmem
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convertPgm(menuOptionsGBSmart, 3);
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mainMenu = question_box(F("GB Smart"), menuOptions, 3, 0);
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// wait for user choice to come back from the question box menu
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switch (mainMenu) {
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case 0:
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{
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gbSmartGameMenu();
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break;
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}
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case 1:
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{
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mode = CORE_GB_GBSMART_FLASH;
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break;
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}
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default:
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{
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asm volatile(" jmp 0");
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break;
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}
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}
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}
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void gbSmartGameOptions() {
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uint8_t gameSubMenu;
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convertPgm(menuOptionsGBSmartGame, 5);
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gameSubMenu = question_box(F("GB Smart Game Menu"), menuOptions, 5, 0);
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switch (gameSubMenu) {
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case 0: // Read Game
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{
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display_Clear();
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sd.chdir("/");
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readROM_GB();
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compare_checksum_GBS();
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break;
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}
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case 1: // Read SRAM
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{
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display_Clear();
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sd.chdir("/");
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readSRAM_GB();
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break;
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}
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case 2: // Write SRAM
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{
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display_Clear();
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sd.chdir("/");
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writeSRAM_GB();
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uint32_t wrErrors = verifySRAM_GB();
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if (wrErrors == 0) {
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println_Msg(F("Verified OK"));
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display_Update();
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} else {
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print_STR(error_STR, 0);
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print_Msg(wrErrors);
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println_Msg(F(" bytes"));
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print_Error(did_not_verify_STR);
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}
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break;
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}
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case 3: // Switch Game
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{
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gameMenuStartBank = 0x02;
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gbSmartGameMenu();
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break;
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}
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default:
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{
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asm volatile(" jmp 0");
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break;
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}
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}
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if (gameSubMenu != 3) {
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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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void gbSmartGameMenu() {
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boolean hasMenu;
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byte numGames;
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struct GBSmartGameInfo gbSmartGames[GB_SMART_GAMES_PER_PAGE];
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uint8_t gameSubMenu = 0;
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gb_smart_load_more_games:
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if (gameMenuStartBank > 0xfe)
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gameMenuStartBank = 0x02;
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gbSmartGetGames(gbSmartGames, &hasMenu, &numGames);
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if (hasMenu) {
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char menuOptionsGBSmartGames[7][20];
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int i = 0;
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for (; i < numGames; i++)
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strncpy(menuOptionsGBSmartGames[i], gbSmartGames[i].title, 16);
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strncpy(menuOptionsGBSmartGames[i], "...", 16);
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gameSubMenu = question_box(F("Select Game"), menuOptionsGBSmartGames, i + 1, 0);
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if (gameSubMenu >= i)
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goto gb_smart_load_more_games;
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} else {
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gameSubMenu = 0;
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}
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// copy romname
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strcpy(romName, gbSmartGames[gameSubMenu].title);
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// select a game
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gbSmartRemapStartBank(gbSmartGames[gameSubMenu].start_bank, gbSmartGames[gameSubMenu].rom_size, gbSmartGames[gameSubMenu].sram_size);
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getCartInfo_GB();
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showCartInfo_GB();
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mode = CORE_GB_GBSMART_GAME;
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}
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void gbSmartFlashMenu() {
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uint8_t flashSubMenu;
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convertPgm(menuOptionsGBSmartFlash, 3);
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flashSubMenu = question_box(F("GB Smart Flash Menu"), menuOptions, 3, 0);
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switch (flashSubMenu) {
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case 0:
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{
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// read flash
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display_Clear();
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sd.chdir("/");
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EEPROM_readAnything(0, foldern);
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sprintf(fileName, "GBS%d.bin", foldern);
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sd.mkdir("GB/GBS", true);
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sd.chdir("GB/GBS");
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foldern = foldern + 1;
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EEPROM_writeAnything(0, foldern);
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gbSmartReadFlash();
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break;
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}
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case 1:
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{
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// write flash
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display_Clear();
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println_Msg(F("Attention"));
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println_Msg(F("This will erase your"));
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println_Msg(F("GB Smart Cartridge."));
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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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display_Clear();
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filePath[0] = '\0';
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sd.chdir("/");
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fileBrowser(F("Select 4MB file"));
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sprintf(filePath, "%s/%s", filePath, fileName);
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gbSmartWriteFlash();
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break;
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}
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default:
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{
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mode = CORE_GB_GBSMART;
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return;
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}
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}
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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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void gbSmartGetOneGame(struct GBSmartGameInfo *gbSmartGames, byte bank, word base) {
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uint8_t myByte, myLength = 0;
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word title_address = base + 0x0134;
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for (uint8_t j = 0; j < 15; j++) {
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myByte = readByte_GBS(title_address++);
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if (((myByte >= '0' && myByte <= '9') || (myByte >= 'A' && myByte <= 'z')))
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gbSmartGames->title[myLength++] = myByte;
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}
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gbSmartGames->title[myLength] = 0x00;
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gbSmartGames->start_bank = bank;
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gbSmartGames->rom_type = readByte_GBS(base + 0x0147);
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gbSmartGames->rom_size = readByte_GBS(base + 0x0148);
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gbSmartGames->sram_size = readByte_GBS(base + 0x0149);
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}
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void gbSmartGetGames(struct GBSmartGameInfo *gbSmartGames, boolean *hasMenu, byte *numGames) {
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static const byte menu_title[] = { 0x47, 0x42, 0x31, 0x36, 0x4d };
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// reset remap setting
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gbSmartRemapStartBank(0x00, gbSmartRomSizeGB, gbSmartSramSizeGB);
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uint16_t i;
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// check if contain menu
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*hasMenu = true;
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dataIn();
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for (i = 0; i < 5; i++) {
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if (readByte_GBS(0x0134 + i) != menu_title[i]) {
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*hasMenu = false;
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break;
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}
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}
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if (*hasMenu) {
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for (i = gameMenuStartBank, *numGames = 0; i < gbSmartBanks && *numGames < GB_SMART_GAMES_PER_PAGE;) {
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// switch bank
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dataOut();
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writeByte_GB(0x2100, i);
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dataIn();
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// read signature
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for (uint8_t j = 0x00; j < 0x30; j++) {
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if (readByte_GBS(0x4104 + j) != signature[j]) {
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i += 0x02;
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continue;
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}
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}
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gbSmartGetOneGame(&gbSmartGames[*numGames], i, 0x4000);
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i += (2 << gbSmartGames[(*numGames)++].rom_size);
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}
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gameMenuStartBank = i;
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} else {
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dataIn();
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gbSmartGetOneGame(&gbSmartGames[0], 0, 0);
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*numGames = 1;
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gameMenuStartBank = 0xfe;
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}
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}
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void gbSmartReadFlash() {
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print_Msg(F("Saving as GB/GBS/"));
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print_Msg(fileName);
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println_Msg(F("..."));
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display_Update();
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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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// reset flash to read array state
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for (uint16_t i = 0x00; i < gbSmartBanks; i += gbSmartBanksPerFlashChip)
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gbSmartResetFlash(i);
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// remaps mmc to full access
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gbSmartRemapStartBank(0x00, gbSmartRomSizeGB, gbSmartSramSizeGB);
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// dump fixed bank 0x00
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dataIn();
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for (uint16_t addr = 0x0000; addr <= 0x3fff; addr += 512) {
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for (uint16_t c = 0; c < 512; c++)
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sdBuffer[c] = readByte_GBS(addr + c);
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myFile.write(sdBuffer, 512);
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}
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// read rest banks
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for (uint16_t bank = 0x01; bank < gbSmartBanks; bank++) {
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dataOut();
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writeByte_GB(0x2100, bank);
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dataIn();
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for (uint16_t addr = 0x4000; addr <= 0x7fff; addr += 512) {
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for (uint16_t c = 0; c < 512; c++)
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sdBuffer[c] = readByte_GBS(addr + c);
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myFile.write(sdBuffer, 512);
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}
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}
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// back to initial state
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writeByte_GB(0x2100, 0x01);
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myFile.close();
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println_Msg("");
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println_Msg(F("Finished reading"));
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display_Update();
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}
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void gbSmartWriteFlash() {
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for (uint16_t bank = 0x00; bank < gbSmartBanks; bank += gbSmartBanksPerFlashChip) {
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display_Clear();
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print_Msg(F("Erasing..."));
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display_Update();
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gbSmartEraseFlash(bank);
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gbSmartResetFlash(bank);
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print_STR(done_STR, 1);
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print_Msg(F("Blankcheck..."));
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display_Update();
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if (!gbSmartBlankCheckingFlash(bank))
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print_FatalError(F("Could not erase flash"));
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println_Msg(F("Passed"));
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display_Update();
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// write full chip
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gbSmartWriteFlash(bank);
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// reset chip
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gbSmartWriteFlashByte(0x0000, 0xff);
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}
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print_STR(verifying_STR, 0);
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display_Update();
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writeErrors = gbSmartVerifyFlash();
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if (writeErrors == 0) {
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println_Msg(FS(FSTRING_OK));
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display_Update();
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} else {
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print_STR(error_STR, 0);
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print_Msg(writeErrors);
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print_STR(_bytes_STR, 1);
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print_FatalError(did_not_verify_STR);
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}
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}
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void gbSmartWriteFlash(uint32_t start_bank) {
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if (!myFile.open(filePath, O_READ))
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print_FatalError(open_file_STR);
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// switch to flash base bank
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gbSmartRemapStartBank(start_bank, gbSmartFlashSizeGB, gbSmartSramSizeGB);
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myFile.seekCur((start_bank << 14));
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print_Msg(F("Writing Bank 0x"));
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print_Msg(start_bank, HEX);
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print_Msg(F("..."));
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display_Update();
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// handle bank 0x00 on 0x0000
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gbSmartWriteFlashFromMyFile(0x0000);
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// handle rest banks on 0x4000
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for (uint8_t bank = 0x01; bank < gbSmartBanksPerFlashChip; bank++) {
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dataOut();
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writeByte_GB(0x2100, bank);
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gbSmartWriteFlashFromMyFile(0x4000);
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}
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myFile.close();
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println_Msg("");
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}
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void gbSmartWriteFlashFromMyFile(uint32_t addr) {
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for (uint16_t i = 0; i < 16384; i += 256) {
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myFile.read(sdBuffer, 256);
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// sequence load to page
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dataOut();
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gbSmartWriteFlashByte(addr, 0xe0);
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gbSmartWriteFlashByte(addr, 0xff);
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gbSmartWriteFlashByte(addr, 0x00); // BCH should be 0x00
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// fill page buffer
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for (int d = 0; d < 256; d++)
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gbSmartWriteFlashByte(d, sdBuffer[d]);
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// start flashing page
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gbSmartWriteFlashByte(addr, 0x0c);
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gbSmartWriteFlashByte(addr, 0xff);
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gbSmartWriteFlashByte(addr + i, 0x00); // BCH should be 0x00
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// waiting for finishing
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dataIn();
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while ((readByte_GBS(addr + i) & 0x80) == 0x00)
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;
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}
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// blink LED
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blinkLED();
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}
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|
|
|
uint32_t gbSmartVerifyFlash() {
|
|
uint32_t verified = 0;
|
|
|
|
if (!myFile.open(filePath, O_READ)) {
|
|
verified = 0xffffffff;
|
|
print_Error(F("Can't open file on SD"));
|
|
} else {
|
|
// remaps mmc to full access
|
|
gbSmartRemapStartBank(0x00, gbSmartRomSizeGB, gbSmartSramSizeGB);
|
|
|
|
// verify bank 0x00
|
|
dataIn();
|
|
for (uint16_t addr = 0x0000; addr <= 0x3fff; addr += 512) {
|
|
myFile.read(sdBuffer, 512);
|
|
|
|
for (uint16_t c = 0; c < 512; c++) {
|
|
if (readByte_GBS(addr + c) != sdBuffer[c])
|
|
verified++;
|
|
}
|
|
}
|
|
|
|
// verify rest banks
|
|
for (uint16_t bank = 0x01; bank < gbSmartBanks; bank++) {
|
|
dataOut();
|
|
writeByte_GB(0x2100, bank);
|
|
|
|
dataIn();
|
|
for (uint16_t addr = 0x4000; addr <= 0x7fff; addr += 512) {
|
|
myFile.read(sdBuffer, 512);
|
|
|
|
for (uint16_t c = 0; c < 512; c++) {
|
|
if (readByte_GBS(addr + c) != sdBuffer[c])
|
|
verified++;
|
|
}
|
|
}
|
|
}
|
|
|
|
// back to initial state
|
|
writeByte_GB(0x2100, 0x01);
|
|
|
|
myFile.close();
|
|
}
|
|
|
|
return verified;
|
|
}
|
|
|
|
byte gbSmartBlankCheckingFlash(uint8_t flash_start_bank) {
|
|
gbSmartRemapStartBank(flash_start_bank, gbSmartFlashSizeGB, gbSmartSramSizeGB);
|
|
|
|
// check first bank
|
|
dataIn();
|
|
for (uint16_t addr = 0x0000; addr <= 0x3fff; addr++) {
|
|
if (readByte_GBS(addr) != 0xff)
|
|
return 0;
|
|
}
|
|
|
|
// check rest banks
|
|
for (uint16_t bank = 0x01; bank < gbSmartBanksPerFlashChip; bank++) {
|
|
dataOut();
|
|
writeByte_GB(0x2100, bank);
|
|
|
|
dataIn();
|
|
for (uint16_t addr = 0x4000; addr <= 0x7fff; addr++) {
|
|
if (readByte_GBS(addr) != 0xff)
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
void gbSmartResetFlash(uint8_t flash_start_bank) {
|
|
gbSmartRemapStartBank(flash_start_bank, gbSmartFlashSizeGB, gbSmartSramSizeGB);
|
|
|
|
dataOut();
|
|
gbSmartWriteFlashByte(0x0, 0xff);
|
|
}
|
|
|
|
void gbSmartEraseFlash(uint8_t flash_start_bank) {
|
|
gbSmartRemapStartBank(flash_start_bank, gbSmartFlashSizeGB, gbSmartSramSizeGB);
|
|
|
|
// handling first flash block
|
|
dataOut();
|
|
gbSmartWriteFlashByte(0x0000, 0x20);
|
|
gbSmartWriteFlashByte(0x0000, 0xd0);
|
|
|
|
dataIn();
|
|
while ((readByte_GBS(0x0000) & 0x80) == 0x00)
|
|
;
|
|
|
|
// blink LED
|
|
blinkLED();
|
|
|
|
// rest of flash block
|
|
for (uint32_t ba = gbSmartBanksPerFlashBlock; ba < gbSmartBanksPerFlashChip; ba += gbSmartBanksPerFlashBlock) {
|
|
dataOut();
|
|
writeByte_GB(0x2100, ba);
|
|
|
|
gbSmartWriteFlashByte(0x4000, 0x20);
|
|
gbSmartWriteFlashByte(0x4000, 0xd0);
|
|
|
|
dataIn();
|
|
while ((readByte_GBS(0x4000) & 0x80) == 0x00)
|
|
;
|
|
|
|
// blink LED
|
|
blinkLED();
|
|
}
|
|
}
|
|
|
|
void gbSmartWriteFlashByte(uint32_t myAddress, uint8_t myData) {
|
|
PORTF = myAddress & 0xff;
|
|
PORTK = (myAddress >> 8) & 0xff;
|
|
PORTC = myData;
|
|
|
|
// wait for 62.5 x 4 = 250ns
|
|
__asm__("nop\n\tnop\n\tnop\n\tnop\n\t");
|
|
|
|
// Pull FLASH_WE (PH4) low
|
|
PORTH &= ~(1 << 4);
|
|
|
|
// pull low for another 250ns
|
|
__asm__("nop\n\tnop\n\tnop\n\tnop\n\t");
|
|
|
|
// Pull FLASH_WE (PH4) high
|
|
PORTH |= (1 << 4);
|
|
|
|
// pull high for another 250ns
|
|
__asm__("nop\n\tnop\n\tnop\n\tnop\n\t");
|
|
}
|
|
|
|
// rom_start_bank = 0x00 means back to original state
|
|
void gbSmartRemapStartBank(uint8_t rom_start_bank, uint8_t rom_size, uint8_t sram_size) {
|
|
rom_start_bank &= 0xfe;
|
|
|
|
dataOut();
|
|
|
|
// clear base bank setting
|
|
writeByte_GB(0x1000, 0xa5);
|
|
writeByte_GB(0x7000, 0x00);
|
|
writeByte_GB(0x1000, 0x98);
|
|
writeByte_GB(0x2000, rom_start_bank);
|
|
|
|
if (rom_start_bank > 1) {
|
|
// start set new base bank
|
|
writeByte_GB(0x1000, 0xa5);
|
|
|
|
dataIn();
|
|
rom_start_bank = gbSmartGetResizeParam(rom_size, sram_size);
|
|
|
|
dataOut();
|
|
writeByte_GB(0x7000, rom_start_bank);
|
|
writeByte_GB(0x1000, 0x98);
|
|
|
|
writeByte_GB(0x2100, 0x01);
|
|
}
|
|
|
|
dataIn();
|
|
}
|
|
|
|
// Get magic number for 0x7000 register.
|
|
// Use for setting correct rom and sram size
|
|
// Code logic is take from SmartCard32M V1.3 menu code,
|
|
// see 0x2db2 to 0x2e51 (0xa0 bytes)
|
|
uint8_t gbSmartGetResizeParam(uint8_t rom_size, uint8_t sram_size) {
|
|
if (rom_size < 0x0f) {
|
|
rom_size &= 0x07;
|
|
rom_size ^= 0x07;
|
|
} else {
|
|
rom_size = 0x01;
|
|
}
|
|
|
|
if (sram_size > 0) {
|
|
if (sram_size > 1) {
|
|
sram_size--;
|
|
sram_size ^= 0x03;
|
|
sram_size <<= 4;
|
|
sram_size &= 0x30;
|
|
} else {
|
|
sram_size = 0x20; // 2KiB treat as 8KiB
|
|
}
|
|
} else {
|
|
sram_size = 0x30; // no sram
|
|
}
|
|
|
|
return (sram_size | rom_size);
|
|
}
|
|
|
|
#endif
|
|
//******************************************
|
|
// End of File
|
|
//******************************************
|