mirror of
https://github.com/Fennix-Project/Kernel.git
synced 2025-05-25 22:14:37 +00:00
71 lines
2.7 KiB
C++
71 lines
2.7 KiB
C++
#include "smbios.hpp"
|
|
|
|
#include <debug.h>
|
|
|
|
#include "../kernel.h"
|
|
|
|
/* https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.2.0.pdf */
|
|
|
|
namespace SMBIOS
|
|
{
|
|
bool CheckSMBIOS()
|
|
{
|
|
if (bInfo->SMBIOSPtr != nullptr && bInfo->SMBIOSPtr < (void *)0xffffffffffff0000)
|
|
{
|
|
debug("SMBIOS is available (%#lx).", bInfo->SMBIOSPtr);
|
|
return true;
|
|
}
|
|
debug("SMBIOS is not available. (%#lx)", bInfo->SMBIOSPtr);
|
|
return false;
|
|
}
|
|
|
|
SMBIOSEntryPoint *GetSMBIOSEntryPoint() { return (SMBIOSEntryPoint *)bInfo->SMBIOSPtr; }
|
|
|
|
static inline int SMBIOSTableLength(SMBIOSHeader *Hdr)
|
|
{
|
|
int i;
|
|
const char *strtab = (char *)Hdr + Hdr->Length;
|
|
for (i = 1; strtab[i - 1] != '\0' || strtab[i] != '\0'; i++)
|
|
;
|
|
return Hdr->Length + i + 1;
|
|
}
|
|
|
|
void *GetSMBIOSHeader(SMBIOSType Type)
|
|
{
|
|
if (!CheckSMBIOS())
|
|
return nullptr;
|
|
|
|
SMBIOSEntryPoint *Header = (SMBIOSEntryPoint *)bInfo->SMBIOSPtr;
|
|
debug("Getting SMBIOS header for type %d", Type);
|
|
|
|
struct SMBIOSHeader *hdr = (SMBIOSHeader *)(uint64_t)Header->TableAddress;
|
|
for (int i = 0; i <= 11; i++)
|
|
{
|
|
if (hdr < (void *)(uint64_t)(Header->TableAddress + Header->TableLength))
|
|
if (hdr->Type == Type)
|
|
{
|
|
debug("Found SMBIOS header for type %d at %#lx", Type, hdr);
|
|
return hdr;
|
|
}
|
|
hdr = (struct SMBIOSHeader *)((uint64_t)hdr + SMBIOSTableLength(hdr));
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
SMBIOSBIOSInformation *GetBIOSInformation() { return (SMBIOSBIOSInformation *)GetSMBIOSHeader(SMBIOSTypeBIOSInformation); }
|
|
|
|
SMBIOSSystemInformation *GetSystemInformation() { return (SMBIOSSystemInformation *)GetSMBIOSHeader(SMBIOSTypeSystemInformation); }
|
|
|
|
SMBIOSBaseBoardInformation *GetBaseBoardInformation() { return (SMBIOSBaseBoardInformation *)GetSMBIOSHeader(SMBIOSTypeBaseBoardInformation); }
|
|
|
|
SMBIOSProcessorInformation *GetProcessorInformation() { return (SMBIOSProcessorInformation *)GetSMBIOSHeader(SMBIOSTypeProcessorInformation); }
|
|
|
|
SMBIOSMemoryArray *GetMemoryArray() { return (SMBIOSMemoryArray *)GetSMBIOSHeader(SMBIOSTypePhysicalMemoryArray); }
|
|
|
|
SMBIOSMemoryDevice *GetMemoryDevice() { return (SMBIOSMemoryDevice *)GetSMBIOSHeader(SMBIOSTypeMemoryDevice); }
|
|
|
|
SMBIOSMemoryArrayMappedAddress *GetMemoryArrayMappedAddress() { return (SMBIOSMemoryArrayMappedAddress *)GetSMBIOSHeader(SMBIOSTypeMemoryArrayMappedAddress); }
|
|
|
|
SMBIOSMemoryDeviceMappedAddress *GetMemoryDeviceMappedAddress() { return (SMBIOSMemoryDeviceMappedAddress *)GetSMBIOSHeader(SMBIOSTypeMemoryDeviceMappedAddress); }
|
|
}
|