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add speedo fuse reading and fix wafer coordinates

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Lightos1
2026-05-09 14:20:43 +02:00
parent a7c1fe0d27
commit d561c0e538
7 changed files with 25 additions and 58 deletions
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57
Source/hoc-clk/sysmodule/src/board/board_fuse.cpp
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@@ -41,53 +41,20 @@ namespace board {
/* >= 1754 */
gpuBracket = 3;
}
// TODO: read the fuses without the USB debug hack
void ReadFuses(FuseData &speedo) {
u64 pid = 0;
constexpr u64 UsbID = 0x0100000000000006;
if (R_FAILED(pmdmntGetProcessId(&pid, UsbID))) {
return;
}
Handle debug;
if (R_FAILED(svcDebugActiveProcess(&debug, pid))) {
return;
}
void ReadFuses(FuseData &speedo, u64 fuseVa) {
constexpr u32 FuseOffset = 0x800;
u8 *fusePtr = reinterpret_cast<u8 *>(fuseVa) + FuseOffset;
MemoryInfo mem_info = {};
u32 pageinfo = 0;
u64 addr = 0;
u8 stack[0x10] = {};
const u8 compare[0x10] = {};
u8 dump[0x400] = {};
constexpr u64 PageSize = 0x1000;
while (true) {
if (R_FAILED(svcQueryDebugProcessMemory(&mem_info, &pageinfo, debug, addr)) || mem_info.addr < addr) {
break;
}
if (mem_info.type == MemType_Io && mem_info.size == PageSize) {
if (R_FAILED(svcReadDebugProcessMemory(stack, debug, mem_info.addr, sizeof(stack)))) {
break;
}
if (memcmp(stack, compare, sizeof(stack)) == 0) {
if (R_FAILED(svcReadDebugProcessMemory(dump, debug, mem_info.addr + 0x800, sizeof(dump)))) {
break;
}
svcCloseHandle(debug);
return;
}
}
addr = mem_info.addr + mem_info.size;
}
svcCloseHandle(debug);
speedo.cpuSpeedo = *reinterpret_cast<u16 *>(fusePtr + FUSE_CPU_SPEEDO_0_CALIB);
speedo.gpuSpeedo = *reinterpret_cast<u16 *>(fusePtr + FUSE_CPU_SPEEDO_2_CALIB);
speedo.socSpeedo = *reinterpret_cast<u16 *>(fusePtr + FUSE_SOC_SPEEDO_0_CALIB);
speedo.cpuIDDQ = *reinterpret_cast<u16 *>(fusePtr + FUSE_CPU_IDDQ_CALIB) * 4;
speedo.gpuIDDQ = *reinterpret_cast<u16 *>(fusePtr + FUSE_GPU_IDDQ_CALIB) * 5;
speedo.socIDDQ = *reinterpret_cast<u16 *>(fusePtr + FUSE_SOC_IDDQ_CALIB) * 4;
speedo.waferX = *reinterpret_cast<s16 *>(fusePtr + FUSE_OPT_X_COORDINATE);
speedo.waferY = *reinterpret_cast<s16 *>(fusePtr + FUSE_OPT_Y_COORDINATE);
speedo.waferX = (speedo.waferX & BIT(8)) ? (speedo.waferX - 512) : speedo.waferX;
}
}