mirror of
https://github.com/sanni/cartreader.git
synced 2024-06-03 02:48:43 +02:00
Adds internal checksumming, ID setting romname
This commit is contained in:
Roger Braunstein
parent
8a484b0214
commit
4621ad20f3
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@ -609,6 +609,34 @@ void rewind_line(FsFile& readfile, byte count = 1) {
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readfile.seekCur(1);
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}
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bool setRomName(const char* database, char* crcStr, int stripExtensionChars = 4) {
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//Search for CRC32 in file
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char gamename[96];
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char crc_search[9];
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bool found;
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//go to root
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sd.chdir();
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if (!myFile.open(database, O_READ)) {
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return false;
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}
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//Search for same CRC in list
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while (myFile.available()) {
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//Read 2 lines (game name and CRC)
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get_line(gamename, &myFile, sizeof(gamename));
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get_line(crc_search, &myFile, sizeof(crc_search));
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skip_line(&myFile); //Skip every 3rd line
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if (strcmp(crc_search, crcStr) == 0) {
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found = true;
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strlcpy(romName, gamename, strlen(gamename) - stripExtensionChars + 1);
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break;
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}
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}
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myFile.close();
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return found;
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}
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// Calculate CRC32 if needed and compare it to CRC read from database
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boolean compareCRC(const char* database, uint32_t crc32sum, boolean renamerom, int offset) {
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char crcStr[9];
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@ -3612,6 +3640,12 @@ void loop() {
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pokeMenu();
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}
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#endif
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#ifdef enable_LOOPY
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else if (mode == mode_LOOPY) {
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loopyMenu();
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}
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#endif
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else {
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display_Clear();
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println_Msg(F("Menu Error"));
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@ -1,6 +1,8 @@
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//******************************************
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// CASIO LOOPY MODULE
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//******************************************
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// IMPORTANT: All data are stored as BIG-ENDIAN. Many ROM dumps online are little endian.
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// See https://github.com/kasamikona/Loopy-Tools/blob/master/ROM%20Structure.md
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#ifdef enable_LOOPY
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// SH-1 memory map locations, ROM starts here
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@ -15,7 +17,10 @@ const int LOOPY_RAMWE = 6;
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const int LOOPY_RAMCS1 = 7;
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const int LOOPY_RAMCS2 = A7;
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char strbuf[9];
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// The internal checksum read from the cart header at 08h, will be checked against an actual sum
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uint32_t loopyChecksum;
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// Whether the cart was found (by checksum) in the database
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bool loopyCartRecognized;
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//******************************************
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// SETUP
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@ -55,7 +60,7 @@ void setup_LOOPY() {
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//******************************************
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// Base Menu
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static const char loopyMenuItem0[] PROGMEM = "Cart Info";
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static const char loopyMenuItem0[] PROGMEM = "Refresh Cart";
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static const char loopyMenuItem1[] PROGMEM = "Read ROM";
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static const char loopyMenuItem2[] PROGMEM = "Read SRAM";
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static const char loopyMenuItem3[] PROGMEM = "Write SRAM";
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@ -65,11 +70,11 @@ static const char* const menuOptionsLOOPY[] PROGMEM = { loopyMenuItem0, loopyMen
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void loopyMenu() {
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convertPgm(menuOptionsLOOPY, 4);
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uint8_t mainMenu = question_box(F("CASIO LOOPY MENU"), menuOptions, 4, 0);
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display_Clear();
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display_Update();
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switch (mainMenu) {
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case 0:
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display_Clear();
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display_Update();
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setup_LOOPY();
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break;
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@ -82,16 +87,11 @@ void loopyMenu() {
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case 2:
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// Read SRAM
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if (sramSize) {
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sd.chdir("/");
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display_Clear();
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println_Msg(F("Reading SRAM..."));
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display_Update();
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readSRAM_LOOPY();
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sd.chdir("/");
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} else {
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print_Error(F("Cart has no SRAM"));
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}
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sd.chdir("/");
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println_Msg(F("Reading SRAM..."));
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display_Update();
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readSRAM_LOOPY();
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sd.chdir("/");
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#if (defined(enable_OLED) || defined(enable_LCD))
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// Wait for user input
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// Prints string out of the common strings array either with or without newline
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@ -103,25 +103,22 @@ void loopyMenu() {
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case 3:
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// Write SRAM
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if (sramSize) {
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// Change working dir to root
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sd.chdir("/");
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fileBrowser(F("Select SAV file"));
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display_Clear();
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writeSRAM_LOOPY();
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writeErrors = verifySRAM_LOOPY();
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if (writeErrors == 0) {
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println_Msg(F("SRAM 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(writeErrors);
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print_STR(_bytes_STR, 1);
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print_Error(did_not_verify_STR);
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}
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// Change working dir to root
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sd.chdir("/");
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fileBrowser(F("Select SAV file"));
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display_Clear();
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writeSRAM_LOOPY();
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writeErrors = verifySRAM_LOOPY();
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if (writeErrors == 0) {
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println_Msg(F("SRAM verified OK"));
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display_Update();
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} else {
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print_Error(F("Cart has no SRAM"));
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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_Error(did_not_verify_STR);
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}
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#if (defined(enable_OLED) || defined(enable_LCD))
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// Wait for user input
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// Prints string out of the common strings array either with or without newline
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@ -143,13 +140,13 @@ void loopyMenu() {
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//******************************************
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void setAddress_LOOPY(unsigned long A) {
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// PK1 A0
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// PK2 A1
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// PK3 A21
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// PK4 A3
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// PK5 A20
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// PK6 A15
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// PK7 A13
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// PK1 A0
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// PK2 A1
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// PK3 A21
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// PK4 A3
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// PK5 A20
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// PK6 A15
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// PK7 A13
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PORTK = (bitRead(A, 0) << 1)
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| (bitRead(A, 1) << 2)
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| (bitRead(A, 21) << 3)
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@ -157,13 +154,13 @@ void setAddress_LOOPY(unsigned long A) {
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| (bitRead(A, 20) << 5)
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| (bitRead(A, 15) << 6)
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| (bitRead(A, 13) << 7);
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// PA1 A2
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// PA2 A4
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// PA3 A19
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// PA4 A18
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// PA5 A16
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// PA6 A17
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// PA7 A14
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// PA1 A2
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// PA2 A4
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// PA3 A19
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// PA4 A18
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// PA5 A16
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// PA6 A17
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// PA7 A14
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PORTA = (bitRead(A, 2) << 1)
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| (bitRead(A, 4) << 2)
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| (bitRead(A, 19) << 3)
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@ -171,18 +168,18 @@ void setAddress_LOOPY(unsigned long A) {
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| (bitRead(A, 16) << 5)
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| (bitRead(A, 17) << 6)
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| (bitRead(A, 14) << 7);
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// PC0 A6
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// PC1 A8
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// PC2 A10
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// PC3 A12
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// PC0 A6
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// PC1 A8
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// PC2 A10
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// PC3 A12
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PORTC = (bitRead(A, 6))
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| (bitRead(A, 8) << 1)
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| (bitRead(A, 10) << 2)
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| (bitRead(A, 12) << 3);
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// PL0 A5
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// PL1 A7
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// PL2 A9
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// PL3 A11
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// PL0 A5
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// PL1 A7
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// PL2 A9
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// PL3 A11
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PORTL = (bitRead(A, 5))
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| (bitRead(A, 7) << 1)
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| (bitRead(A, 9) << 2)
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@ -190,33 +187,75 @@ void setAddress_LOOPY(unsigned long A) {
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}
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uint16_t getWord_LOOPY() {
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return digitalRead(A8)
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| (digitalRead(22) << 1)
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| (digitalRead(A6) << 2)
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| (digitalRead(A5) << 3)
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| (digitalRead(A3) << 4)
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| (digitalRead(40) << 5)
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| (digitalRead(A2) << 6)
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| (digitalRead(41) << 7)
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| (digitalRead(A1) << 8)
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| (digitalRead(3) << 9)
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| (digitalRead(A0) << 10)
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| (digitalRead(2) << 11)
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| (digitalRead(14) << 12)
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| (digitalRead(15) << 13)
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| (digitalRead(A4) << 14)
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| (digitalRead(4) << 15);
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// A8 PK0 D0
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// D22 PA0 D1
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// A6 PF6 D2
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// A5 PF5 D3
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// A3 PF3 D4
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// D40 PG1 D5
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// A2 PF2 D6
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// D41 PG0 D7
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// A1 PF1 D8
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// D3 PE5 D9
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// A0 PF0 D10
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// D2 PE4 D11
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// D14 PJ1 D12
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// D15 PJ0 D13
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// A4 PF4 D14
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// D4 PG5 D15
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return bitRead(PINK, 0)
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| (bitRead(PINA, 0) << 1)
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| (bitRead(PINF, 6) << 2)
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| (bitRead(PINF, 5) << 3)
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| (bitRead(PINF, 3) << 4)
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| (bitRead(PING, 1) << 5)
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| (bitRead(PINF, 2) << 6)
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| (bitRead(PING, 0) << 7)
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| (bitRead(PINF, 1) << 8)
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| (bitRead(PINE, 5) << 9)
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| (bitRead(PINF, 0) << 10)
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| (bitRead(PINE, 4) << 11)
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| (bitRead(PINJ, 1) << 12)
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| (bitRead(PINJ, 0) << 13)
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| (bitRead(PINF, 4) << 14)
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| (bitRead(PING, 5) << 15);
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// return digitalRead(A8)
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// | (digitalRead(22) << 1)
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// | (digitalRead(A6) << 2)
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// | (digitalRead(A5) << 3)
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// | (digitalRead(A3) << 4)
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// | (digitalRead(40) << 5)
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// | (digitalRead(A2) << 6)
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// | (digitalRead(41) << 7)
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// | (digitalRead(A1) << 8)
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// | (digitalRead(3) << 9)
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// | (digitalRead(A0) << 10)
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// | (digitalRead(2) << 11)
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// | (digitalRead(14) << 12)
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// | (digitalRead(15) << 13)
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// | (digitalRead(A4) << 14)
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// | (digitalRead(4) << 15);
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}
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uint8_t getByte_LOOPY() {
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return digitalRead(A8)
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| (digitalRead(22) << 1)
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| (digitalRead(A6) << 2)
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| (digitalRead(A5) << 3)
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| (digitalRead(A3) << 4)
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| (digitalRead(40) << 5)
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| (digitalRead(A2) << 6)
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| (digitalRead(41) << 7);
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return bitRead(PINK, 0)
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| (bitRead(PINA, 0) << 1)
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| (bitRead(PINF, 6) << 2)
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| (bitRead(PINF, 5) << 3)
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| (bitRead(PINF, 3) << 4)
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| (bitRead(PING, 1) << 5)
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| (bitRead(PINF, 2) << 6)
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| (bitRead(PING, 0) << 7);
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// return digitalRead(A8)
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// | (digitalRead(22) << 1)
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// | (digitalRead(A6) << 2)
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// | (digitalRead(A5) << 3)
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// | (digitalRead(A3) << 4)
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// | (digitalRead(40) << 5)
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// | (digitalRead(A2) << 6)
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// | (digitalRead(41) << 7);
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}
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void setByte_LOOPY(uint8_t D) {
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@ -230,35 +269,45 @@ void setByte_LOOPY(uint8_t D) {
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digitalWrite(41, bitRead(D, 7));
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}
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void writeByte_LOOPY(unsigned long myAddress, byte myData) {
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// TODO Update
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byte readByte_LOOPY(unsigned long myAddress) {
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setAddress_LOOPY(myAddress);
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__asm__("nop\n\t");
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digitalWrite(LOOPY_RAMCS1, LOW);
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digitalWrite(LOOPY_OE, LOW);
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PORTA = myData;
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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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// Set CS2(PH0), /CE(PH3), /OE(PH6) to HIGH
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PORTH |= (1 << 0) | (1 << 3) | (1 << 6);
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// Set /CS1(PH4), /WE0(PH5) to LOW
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PORTH &= ~(1 << 4) & ~(1 << 5);
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byte b = getByte_LOOPY();
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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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"nop\n\t"
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"nop\n\t");
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digitalWrite(LOOPY_RAMCS1, HIGH);
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digitalWrite(LOOPY_OE, HIGH);
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// Set CS2(PH0), /CS1(PH4), /WE0(PH5) to HIGH
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PORTH |= (1 << 0) | (1 << 4) | (1 << 5);
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return b;
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}
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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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"nop\n\t"
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"nop\n\t");
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void writeByte_LOOPY(unsigned long myAddress, byte myData) {
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setAddress_LOOPY(myAddress);
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setByte_LOOPY(myData);
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digitalWrite(LOOPY_RAMCS1, LOW);
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digitalWrite(LOOPY_OE, HIGH);
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digitalWrite(LOOPY_RAMWE, LOW);
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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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digitalWrite(LOOPY_RAMWE, HIGH);
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digitalWrite(LOOPY_RAMCS1, HIGH);
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}
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word readWord_LOOPY(unsigned long myAddress) {
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@ -279,48 +328,6 @@ word readWord_LOOPY(unsigned long myAddress) {
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return tempWord;
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}
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byte readByte_LOOPY(unsigned long myAddress) { // SRAM BYTE
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// TODO Update
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setAddress_LOOPY(myAddress);
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__asm__("nop\n\t");
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// Set CS2(PH0), /CE(PH3), /WE0(PH5) to HIGH
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PORTH |= (1 << 0) | (1 << 3) | (1 << 5);
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// Set /CS1(PH4), /OE(PH6) to LOW
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PORTH &= ~(1 << 4) & ~(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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"nop\n\t"
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"nop\n\t");
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byte tempByte = PINA;
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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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"nop\n\t"
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"nop\n\t");
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// Set /CS1(PH4), /OE(PH6) to HIGH
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PORTH |= (1 << 3) | (1 << 6);
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// Setting CS2(PH0) LOW
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PORTH &= ~(1 << 0);
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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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"nop\n\t"
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"nop\n\t");
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return tempByte;
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}
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// Switch data pins to write
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void dataOut_LOOPY() {
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// // PA0
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@ -397,39 +404,32 @@ void getCartInfo_LOOPY() {
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dataIn_LOOPY();
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// Last word of ROM stored as 32-bit pointer at 000004h
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// TODO make sure you have endianness right when interpreting this
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uint32_t headerRomSize = ((uint32_t)readWord_LOOPY(0x4) << 16) | (uint32_t)readWord_LOOPY(0x6);
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cartSize = headerRomSize - LOOPY_MAP_ROM_ZERO + 2;
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// Get internal CRC32 from header
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uint32_t cartHeaderCrc = ((uint32_t)readWord_LOOPY(0x8) << 16) | (uint32_t)readWord_LOOPY(0xA);
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sprintf(checksumStr, "%08lx", cartHeaderCrc);
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// Get internal checksum from header
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loopyChecksum = ((uint32_t)readWord_LOOPY(0x8) << 16) | (uint32_t)readWord_LOOPY(0xA);
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sprintf(checksumStr, "%08lX", loopyChecksum);
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// Look up in database
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// compareCRC("loopy.txt", cartId, false, 0);
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|
||||
// SRAM size can be calculated from subtracting 32bit pointers 000014h (last byte of sram, memory mapped) - 000010h (first byte of sram, memory mapped)
|
||||
// But this is fine
|
||||
sramSize = LOOPY_SRAM_SIZE;
|
||||
loopyCartRecognized = setRomName("loopy.txt", checksumStr);
|
||||
|
||||
println_Msg(F("Cart Info"));
|
||||
println_Msg(F(" "));
|
||||
print_Msg(F("Magic: "));
|
||||
sprintf(strbuf, "0x%08lx", ((uint32_t)readWord_LOOPY(0) << 16) | (uint32_t)readWord_LOOPY(0x2));
|
||||
println_Msg(strbuf);
|
||||
// print_Msg(F("Name: "));
|
||||
// println_Msg(romName);
|
||||
print_Msg(F("CRC32: "));
|
||||
print_Msg(F("Name: "));
|
||||
println_Msg(romName);
|
||||
print_Msg(F("Checksum: "));
|
||||
println_Msg(checksumStr);
|
||||
print_Msg(F("Size: "));
|
||||
print_Msg(cartSize * 8 / 1024 / 1024);
|
||||
println_Msg(F(" MBit"));
|
||||
|
||||
// SRAM size can be calculated from subtracting 32bit pointers 000014h (last byte of sram, memory mapped) - 000010h (first byte of sram, memory mapped)
|
||||
// But this is fine
|
||||
sramSize = LOOPY_SRAM_SIZE;
|
||||
print_Msg(F("Sram: "));
|
||||
if (sramSize > 0) {
|
||||
print_Msg(sramSize * 8 / 1024);
|
||||
println_Msg(F(" KBit"));
|
||||
} else
|
||||
println_Msg(F("None"));
|
||||
print_Msg(sramSize * 8 / 1024);
|
||||
println_Msg(F(" KBit"));
|
||||
println_Msg(F(" "));
|
||||
|
||||
#if (defined(enable_OLED) || defined(enable_LCD))
|
||||
|
|
@ -448,11 +448,10 @@ void getCartInfo_LOOPY() {
|
|||
void readROM_LOOPY() {
|
||||
dataIn_LOOPY();
|
||||
|
||||
strcpy(fileName, romName);
|
||||
strcat(fileName, ".bin");
|
||||
sprintf(fileName, "%s.bin", romName);
|
||||
|
||||
EEPROM_readAnything(0, foldern);
|
||||
sprintf(folder, "LOOPY/ROM/%s/%d", romName, foldern);
|
||||
sprintf(folder, "LOOPY/ROM/%d", foldern);
|
||||
sd.mkdir(folder, true);
|
||||
sd.chdir(folder);
|
||||
|
||||
|
|
@ -471,23 +470,54 @@ void readROM_LOOPY() {
|
|||
|
||||
draw_progressbar(0, cartSize);
|
||||
|
||||
// sdbuffer size is 512
|
||||
const size_t sdBufferSize = 512;
|
||||
uint32_t sum = 0;
|
||||
|
||||
for (unsigned long ptr = 0; ptr < cartSize;) {
|
||||
word myWord = readWord_LOOPY(ptr);
|
||||
sdBuffer[ptr++ % sdBufferSize] = ((myWord >> 8) & 0xFF);
|
||||
sdBuffer[ptr++ % sdBufferSize] = (myWord & 0xFF);
|
||||
|
||||
// aggregate checksum over 16-bit words, starting at 80h, this address is stored in header but never varies
|
||||
if (ptr >= 0x80) {
|
||||
sum += myWord;
|
||||
}
|
||||
|
||||
// Store in buffer
|
||||
sdBuffer[ptr++ % sdBufferSize] = (myWord >> 8) & 0xFF;
|
||||
sdBuffer[ptr++ % sdBufferSize] = myWord & 0xFF;
|
||||
|
||||
// Flush when buffer full
|
||||
if (ptr % sdBufferSize == 0) {
|
||||
myFile.write(sdBuffer, sdBufferSize);
|
||||
blinkLED();
|
||||
// Only update progress bar every 64kb
|
||||
if (ptr % 0x10000 == 0) {
|
||||
draw_progressbar(ptr, cartSize);
|
||||
}
|
||||
}
|
||||
draw_progressbar(ptr, cartSize);
|
||||
}
|
||||
// TODO this assumes size is divisible by 512
|
||||
myFile.close();
|
||||
|
||||
// Instead of the CRC32, check the internal integrity based on the header checksum
|
||||
print_Msg(F("Header sum: "));
|
||||
println_Msg(checksumStr);
|
||||
print_Msg(F("Actual sum: "));
|
||||
|
||||
char calculatedChecksumStr[9];
|
||||
sprintf(calculatedChecksumStr, "%08lX", sum);
|
||||
println_Msg(calculatedChecksumStr);
|
||||
|
||||
if (sum == loopyChecksum) {
|
||||
println_Msg(F("INTEGRITY OK :)"));
|
||||
} else {
|
||||
println_Msg(F("INTEGRITY FAIL! Bad dump"));
|
||||
}
|
||||
|
||||
display_Update();
|
||||
|
||||
// Compare CRC32 to database and rename ROM if found
|
||||
// Arguments: database name, precalculated crc string or 0 to calculate, rename rom or not, starting offset
|
||||
compareCRC("loopy.txt", 0, 1, 0);
|
||||
//compareCRC("loopy.txt", 0, 1, 0x80);
|
||||
|
||||
#if (defined(enable_OLED) || defined(enable_LCD))
|
||||
// Wait for user input
|
||||
|
|
@ -504,7 +534,6 @@ void readROM_LOOPY() {
|
|||
//******************************************
|
||||
|
||||
void writeSRAM_LOOPY() {
|
||||
// TODO UPDATE
|
||||
dataOut_LOOPY();
|
||||
|
||||
sprintf(filePath, "%s/%s", filePath, fileName);
|
||||
|
|
@ -514,7 +543,6 @@ void writeSRAM_LOOPY() {
|
|||
|
||||
if (myFile.open(filePath, O_READ)) {
|
||||
for (unsigned long currByte = 0; currByte < sramSize; currByte++) {
|
||||
// writeWord_LOOPY(currByte, ((myFile.read() << 8 ) & 0xFF));
|
||||
writeByte_LOOPY(currByte, (myFile.read()));
|
||||
}
|
||||
myFile.close();
|
||||
|
|
@ -527,11 +555,9 @@ void writeSRAM_LOOPY() {
|
|||
}
|
||||
|
||||
void readSRAM_LOOPY() {
|
||||
// TODO UPDATE
|
||||
dataIn_LOOPY();
|
||||
|
||||
strcpy(fileName, romName);
|
||||
strcat(fileName, ".sav");
|
||||
sprintf(fileName, "%s.sav", romName);
|
||||
|
||||
EEPROM_readAnything(0, foldern);
|
||||
sprintf(folder, "LOOPY/SAVE/%s/%d", romName, foldern);
|
||||
|
|
@ -544,13 +570,15 @@ void readSRAM_LOOPY() {
|
|||
if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
|
||||
print_FatalError(sd_error_STR);
|
||||
}
|
||||
for (unsigned long currBuffer = 0; currBuffer < sramSize; currBuffer += 512) {
|
||||
for (int currByte = 0; currByte < 512; currByte++) {
|
||||
byte myByte = readByte_LOOPY(currBuffer + currByte);
|
||||
sdBuffer[currByte] = myByte;
|
||||
|
||||
const size_t sdBufferSize = 512;
|
||||
for (unsigned long ptr = 0; ptr < sramSize;) {
|
||||
sdBuffer[ptr++ % sdBufferSize] = readByte_LOOPY(ptr);
|
||||
if (ptr % sdBufferSize == 0) {
|
||||
myFile.write(sdBuffer, sdBufferSize);
|
||||
}
|
||||
myFile.write(sdBuffer, 512);
|
||||
}
|
||||
|
||||
myFile.close();
|
||||
print_Msg(F("Saved to "));
|
||||
print_Msg(folder);
|
||||
|
|
@ -559,7 +587,6 @@ void readSRAM_LOOPY() {
|
|||
}
|
||||
|
||||
unsigned long verifySRAM_LOOPY() {
|
||||
// TODO UPDATE
|
||||
dataIn_LOOPY();
|
||||
writeErrors = 0;
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user