WiiUIdent/source/system/MemoryDevice.cpp

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2023-03-30 21:40:17 +02:00
#include "MemoryDevice.hpp"
#include "Utils.hpp"
#include <map>
#include <algorithm>
#include <mocha/mocha.h>
struct WUT_PACKED SALDeviceParams {
uint32_t usrptr;
uint32_t mid_prv;
uint32_t device_type;
WUT_UNKNOWN_BYTES(0x1c);
uint64_t numBlocks;
uint32_t blockSize;
WUT_UNKNOWN_BYTES(0x18);
char name0[128];
char name1[128];
char name2[128];
uint32_t functions[12];
};
struct WUT_PACKED MDBlkDrv {
int32_t registered;
WUT_UNKNOWN_BYTES(0x8);
SALDeviceParams params;
int sal_handle;
int deviceId;
WUT_UNKNOWN_BYTES(0xc4);
};
WUT_CHECK_SIZE(MDBlkDrv, 0x2d4);
namespace
{
constexpr uint32_t MDBLK_DRIVER_ADDRESS = 0x11c39e78;
constexpr uint32_t MD_DEVICE_POINTERS_ADDRESS = 0x10899308;
// TODO turn this into a struct eventually
constexpr uint32_t MD_DEVICE_CID_OFFSET = 0x58;
constexpr uint32_t MD_DEVICE_CSD_OFFSET = 0x68;
const std::map<uint16_t, std::string> sdMidMap = {
// from https://kernel.googlesource.com/pub/scm/utils/mmc/mmc-utils/+/refs/heads/master/lsmmc.c
{ 0x01, "Panasonic" },
{ 0x02, "Toshiba/Kingston/Viking" },
{ 0x03, "SanDisk" },
{ 0x08, "Silicon Power" },
{ 0x18, "Infineon" },
{ 0x1b, "Transcend/Samsung" },
{ 0x1c, "Transcend" },
{ 0x1d, "Corsair/AData" },
{ 0x1e, "Transcend" },
{ 0x1f, "Kingston" },
{ 0x27, "Delkin/Phison" },
{ 0x28, "Lexar" },
{ 0x30, "SanDisk" },
{ 0x31, "Silicon Power" },
{ 0x33, "STMicroelectronics" },
{ 0x41, "Kingston" },
{ 0x6f, "STMicroelectronics" },
{ 0x74, "Transcend" },
{ 0x76, "Patriot" },
{ 0x82, "Gobe/Sony" },
{ 0x89, "Unknown" },
{ 0x9e, "PNY" },
};
const std::map<uint16_t, std::string> mmcMidMap = {
{ 0x11, "Toshiba" },
// technically shared with Samsung/SanDisk/LG but Nintendo only used Samsung in Wii Us
{ 0x15, "Samsung" },
{ 0x90, "Hynix" }
};
}
bool MemoryDevice::Init()
{
memoryDevices.clear();
// read driver structs from IOS-FS
MDBlkDrv blkDrvs[2]{};
for (uint32_t i = 0; i < sizeof(blkDrvs) / 4; i++) {
if (Mocha_IOSUKernelRead32(MDBLK_DRIVER_ADDRESS + (i * 4), ((uint32_t*) &blkDrvs) + i) != MOCHA_RESULT_SUCCESS) {
return false;
}
}
// read all SAL device pointers
uint32_t devicePointers[8]{};
for (uint32_t i = 0; i < sizeof(devicePointers) / 4; i++) {
if (Mocha_IOSUKernelRead32(MD_DEVICE_POINTERS_ADDRESS + (i * 4), devicePointers + i) != MOCHA_RESULT_SUCCESS) {
return false;
}
}
// Create a MemoryDevice instance for each struct
for (MDBlkDrv& drv : blkDrvs) {
// don't bother adding it if not attached
if (!drv.registered) {
continue;
}
MemoryDevice dev{};
dev.type = (Type) drv.params.device_type;
dev.mid = drv.params.mid_prv >> 16;
dev.prv = drv.params.mid_prv & 0xffff;
dev.name = drv.params.name1;
dev.numBlocks = drv.params.numBlocks;
dev.blockSize = drv.params.blockSize;
// some manufacturers place weird characters into their names?
dev.name.erase(std::remove_if(dev.name.begin(), dev.name.end(), [](char c){return !(c >= 0 && c < 128);}), dev.name.end());
// read cid and csd
int idx = drv.deviceId - 0x42;
if (idx >= 0 && idx < 8 && devicePointers[idx]) {
for (uint32_t i = 0; i < dev.cid.size() / 4; i++) {
if (Mocha_IOSUKernelRead32(devicePointers[idx] + MD_DEVICE_CID_OFFSET + (i * 4), (uint32_t*) dev.cid.data() + i) != MOCHA_RESULT_SUCCESS) {
return false;
}
}
for (uint32_t i = 0; i < dev.csd.size() / 4; i++) {
if (Mocha_IOSUKernelRead32(devicePointers[idx] + MD_DEVICE_CSD_OFFSET + (i * 4), (uint32_t*) dev.csd.data() + i) != MOCHA_RESULT_SUCCESS) {
return false;
}
}
}
memoryDevices.push_back(dev);
}
return true;
}
MemoryDevice::CardType MemoryDevice::GetCardType() const
{
// if we have a mmc manufacturer for this mid it's most likely a mmc
if (mmcMidMap.contains(GetMID())) {
return CARD_TYPE_MMC;
}
// otherwise if we have a sd manufacturer it's probably an sd card
if (sdMidMap.contains(GetMID())) {
return CARD_TYPE_SD;
}
return CARD_TYPE_UNKNOWN;
}
std::string MemoryDevice::GetManufacturerName() const
{
CardType cardType = GetCardType();
if (cardType == CARD_TYPE_MMC) {
return mmcMidMap.at(GetMID());
} else if (cardType == CARD_TYPE_SD) {
return sdMidMap.at(GetMID());
}
return "Unknown";
}
std::string MemoryDevice::GetProductionDate() const
{
if (GetCardType() != CARD_TYPE_MMC) {
// we currently don't read the production data for non mmc types
return "";
}
uint8_t month = (cid[14] >> 4) & 0xf;
uint16_t year = cid[14] & 0xf;
year += 1997;
if(year < 2005)
year += 0x10;
return Utils::sprintf("%u/%02u", year, month);
}