diff options
Diffstat (limited to 'src/NDSCart.cpp')
| -rw-r--r-- | src/NDSCart.cpp | 230 |
1 files changed, 120 insertions, 110 deletions
diff --git a/src/NDSCart.cpp b/src/NDSCart.cpp index c0e1c5f..4474f97 100644 --- a/src/NDSCart.cpp +++ b/src/NDSCart.cpp @@ -1145,12 +1145,12 @@ u8 CartRetailBT::SPIWrite(u8 val, u32 pos, bool last) return 0; } -CartHomebrew::CartHomebrew(const u8* rom, u32 len, u32 chipid, ROMListEntry romparams, std::optional<FATStorage>&& sdcard) : - CartHomebrew(CopyToUnique(rom, len), len, chipid, romparams, std::move(sdcard)) -{ -} -CartHomebrew::CartHomebrew(std::unique_ptr<u8[]>&& rom, u32 len, u32 chipid, ROMListEntry romparams, std::optional<FATStorage>&& sdcard) : +CartSD::CartSD(const u8* rom, u32 len, u32 chipid, ROMListEntry romparams, std::optional<FATStorage>&& sdcard) : + CartSD(CopyToUnique(rom, len), len, chipid, romparams, std::move(sdcard)) +{} + +CartSD::CartSD(std::unique_ptr<u8[]>&& rom, u32 len, u32 chipid, ROMListEntry romparams, std::optional<FATStorage>&& sdcard) : CartCommon(std::move(rom), len, chipid, false, romparams, CartType::Homebrew), SD(std::move(sdcard)) { @@ -1158,112 +1158,11 @@ CartHomebrew::CartHomebrew(std::unique_ptr<u8[]>&& rom, u32 len, u32 chipid, ROM // std::move on optionals usually results in an optional with a moved-from object } -CartHomebrew::~CartHomebrew() = default; +CartSD::~CartSD() = default; // The SD card is destroyed by the optional's destructor -void CartHomebrew::Reset() -{ - CartCommon::Reset(); - - if (SD) - { - ApplyDLDIPatch(melonDLDI, sizeof(melonDLDI), SD->IsReadOnly()); - } -} - -void CartHomebrew::SetupDirectBoot(const std::string& romname, NDS& nds) -{ - CartCommon::SetupDirectBoot(romname, nds); - - if (SD) - { - // add the ROM to the SD volume - - if (!SD->InjectFile(romname, ROM.get(), ROMLength)) - return; - - // setup argv command line - - char argv[512] = {0}; - int argvlen; - - strncpy(argv, "fat:/", 511); - strncat(argv, romname.c_str(), 511); - argvlen = strlen(argv); - - const NDSHeader& header = GetHeader(); - - u32 argvbase = header.ARM9RAMAddress + header.ARM9Size; - argvbase = (argvbase + 0xF) & ~0xF; - - for (u32 i = 0; i <= argvlen; i+=4) - nds.ARM9Write32(argvbase+i, *(u32*)&argv[i]); - - nds.ARM9Write32(0x02FFFE70, 0x5F617267); - nds.ARM9Write32(0x02FFFE74, argvbase); - nds.ARM9Write32(0x02FFFE78, argvlen+1); - // The DSi version of ARM9Write32 will be called if nds is really a DSi - } -} - -int CartHomebrew::ROMCommandStart(NDS& nds, NDSCart::NDSCartSlot& cartslot, const u8* cmd, u8* data, u32 len) -{ - if (CmdEncMode != 2) return CartCommon::ROMCommandStart(nds, cartslot, cmd, data, len); - - switch (cmd[0]) - { - case 0xB7: - { - u32 addr = (cmd[1]<<24) | (cmd[2]<<16) | (cmd[3]<<8) | cmd[4]; - memset(data, 0, len); - - if (((addr + len - 1) >> 12) != (addr >> 12)) - { - u32 len1 = 0x1000 - (addr & 0xFFF); - ReadROM_B7(addr, len1, data, 0); - ReadROM_B7(addr+len1, len-len1, data, len1); - } - else - ReadROM_B7(addr, len, data, 0); - } - return 0; - - case 0xC0: // SD read - { - u32 sector = (cmd[1]<<24) | (cmd[2]<<16) | (cmd[3]<<8) | cmd[4]; - if (SD) SD->ReadSectors(sector, len>>9, data); - } - return 0; - - case 0xC1: // SD write - return 1; - - default: - return CartCommon::ROMCommandStart(nds, cartslot, cmd, data, len); - } -} - -void CartHomebrew::ROMCommandFinish(const u8* cmd, u8* data, u32 len) -{ - if (CmdEncMode != 2) return CartCommon::ROMCommandFinish(cmd, data, len); - - // TODO: delayed SD writing? like we have for SRAM - - switch (cmd[0]) - { - case 0xC1: - { - u32 sector = (cmd[1]<<24) | (cmd[2]<<16) | (cmd[3]<<8) | cmd[4]; - if (SD && !SD->IsReadOnly()) SD->WriteSectors(sector, len>>9, data); - } - break; - - default: - return CartCommon::ROMCommandFinish(cmd, data, len); - } -} -void CartHomebrew::ApplyDLDIPatchAt(u8* binary, u32 dldioffset, const u8* patch, u32 patchlen, bool readonly) const +void CartSD::ApplyDLDIPatchAt(u8* binary, u32 dldioffset, const u8* patch, u32 patchlen, bool readonly) const { if (patch[0x0D] > binary[dldioffset+0x0F]) { @@ -1364,7 +1263,7 @@ void CartHomebrew::ApplyDLDIPatchAt(u8* binary, u32 dldioffset, const u8* patch, Log(LogLevel::Debug, "applied DLDI patch at %08X\n", dldioffset); } -void CartHomebrew::ApplyDLDIPatch(const u8* patch, u32 patchlen, bool readonly) +void CartSD::ApplyDLDIPatch(const u8* patch, u32 patchlen, bool readonly) { if (*(u32*)&patch[0] != 0xBF8DA5ED || *(u32*)&patch[4] != 0x69684320 || @@ -1394,7 +1293,7 @@ void CartHomebrew::ApplyDLDIPatch(const u8* patch, u32 patchlen, bool readonly) } } -void CartHomebrew::ReadROM_B7(u32 addr, u32 len, u8* data, u32 offset) const +void CartSD::ReadROM_B7(u32 addr, u32 len, u8* data, u32 offset) const { // TODO: how strict should this be for homebrew? @@ -1403,7 +1302,115 @@ void CartHomebrew::ReadROM_B7(u32 addr, u32 len, u8* data, u32 offset) const memcpy(data+offset, ROM.get()+addr, len); } +CartHomebrew::CartHomebrew(const u8* rom, u32 len, u32 chipid, ROMListEntry romparams, std::optional<FATStorage>&& sdcard) : + CartSD(rom, len, chipid, romparams, std::move(sdcard)) +{} + +CartHomebrew::CartHomebrew(std::unique_ptr<u8[]>&& rom, u32 len, u32 chipid, ROMListEntry romparams, std::optional<FATStorage>&& sdcard) : + CartSD(std::move(rom), len, chipid, romparams, std::move(sdcard)) +{} + +CartHomebrew::~CartHomebrew() = default; + +void CartHomebrew::Reset() +{ + CartSD::Reset(); + + if (SD) + ApplyDLDIPatch(melonDLDI, sizeof(melonDLDI), SD->IsReadOnly()); +} + +void CartHomebrew::SetupDirectBoot(const std::string& romname, NDS& nds) +{ + CartCommon::SetupDirectBoot(romname, nds); + + if (SD) + { + // add the ROM to the SD volume + + if (!SD->InjectFile(romname, ROM.get(), ROMLength)) + return; + + // setup argv command line + + char argv[512] = {0}; + int argvlen; + + strncpy(argv, "fat:/", 511); + strncat(argv, romname.c_str(), 511); + argvlen = strlen(argv); + + const NDSHeader& header = GetHeader(); + + u32 argvbase = header.ARM9RAMAddress + header.ARM9Size; + argvbase = (argvbase + 0xF) & ~0xF; + + for (u32 i = 0; i <= argvlen; i+=4) + nds.ARM9Write32(argvbase+i, *(u32*)&argv[i]); + + nds.ARM9Write32(0x02FFFE70, 0x5F617267); + nds.ARM9Write32(0x02FFFE74, argvbase); + nds.ARM9Write32(0x02FFFE78, argvlen+1); + // The DSi version of ARM9Write32 will be called if nds is really a DSi + } +} + +int CartHomebrew::ROMCommandStart(NDS& nds, NDSCart::NDSCartSlot& cartslot, const u8* cmd, u8* data, u32 len) +{ + if (CmdEncMode != 2) return CartCommon::ROMCommandStart(nds, cartslot, cmd, data, len); + switch (cmd[0]) + { + case 0xB7: + { + u32 addr = (cmd[1]<<24) | (cmd[2]<<16) | (cmd[3]<<8) | cmd[4]; + memset(data, 0, len); + + if (((addr + len - 1) >> 12) != (addr >> 12)) + { + u32 len1 = 0x1000 - (addr & 0xFFF); + ReadROM_B7(addr, len1, data, 0); + ReadROM_B7(addr+len1, len-len1, data, len1); + } + else + ReadROM_B7(addr, len, data, 0); + } + return 0; + + case 0xC0: // SD read + { + u32 sector = (cmd[1]<<24) | (cmd[2]<<16) | (cmd[3]<<8) | cmd[4]; + if (SD) SD->ReadSectors(sector, len>>9, data); + } + return 0; + + case 0xC1: // SD write + return 1; + + default: + return CartCommon::ROMCommandStart(nds, cartslot, cmd, data, len); + } +} + +void CartHomebrew::ROMCommandFinish(const u8* cmd, u8* data, u32 len) +{ + if (CmdEncMode != 2) return CartCommon::ROMCommandFinish(cmd, data, len); + + // TODO: delayed SD writing? like we have for SRAM + + switch (cmd[0]) + { + case 0xC1: + { + u32 sector = (cmd[1]<<24) | (cmd[2]<<16) | (cmd[3]<<8) | cmd[4]; + if (SD && !SD->IsReadOnly()) SD->WriteSectors(sector, len>>9, data); + } + break; + + default: + return CartCommon::ROMCommandFinish(cmd, data, len); + } +} NDSCartSlot::NDSCartSlot(melonDS::NDS& nds, std::unique_ptr<CartCommon>&& rom) noexcept : NDS(nds) { @@ -1588,6 +1595,7 @@ std::unique_ptr<CartCommon> ParseROM(std::unique_ptr<u8[]>&& romdata, u32 romlen dsi = false; } + const char *gametitle = header.GameTitle; u32 gamecode = header.GameCodeAsU32(); u32 arm9base = header.ARM9ROMOffset; @@ -1645,6 +1653,8 @@ std::unique_ptr<CartCommon> ParseROM(std::unique_ptr<u8[]>&& romdata, u32 romlen auto [sram, sramlen] = args ? std::move(*args->SRAM) : std::make_pair(nullptr, 0); if (homebrew) cart = std::make_unique<CartHomebrew>(std::move(cartrom), cartromsize, cartid, romparams, args ? std::move(args->SDCard) : std::nullopt); + else if (gametitle[0] == 0 && !strncmp("SD/TF-NDS", gametitle + 1, 9) && gamecode == 0x414D5341) + cart = std::make_unique<CartR4>(std::move(cartrom), cartromsize, cartid, romparams, CartR4TypeR4, CartR4LanguageEnglish, args ? std::move(args->SDCard) : std::nullopt); else if (cartid & 0x08000000) cart = std::make_unique<CartRetailNAND>(std::move(cartrom), cartromsize, cartid, romparams, std::move(sram), sramlen); else if (irversion != 0) |