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janwas
2c72e1f364
add initial SMBIOS implementation for retrieving system information wacpi -> wfirmware (now also used to retrieve SMBIOS table) This was SVN commit r9144.
49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
#include "precompiled.h"
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#include "lib/sysdep/os/win/wfirmware.h"
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#include "lib/sysdep/os/win/wutil.h"
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namespace wfirmware {
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TableIds GetTableIDs(Provider provider)
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{
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WUTIL_FUNC(pEnumSystemFirmwareTables, UINT, (DWORD, PVOID, DWORD));
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WUTIL_IMPORT_KERNEL32(EnumSystemFirmwareTables, pEnumSystemFirmwareTables);
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if(!pEnumSystemFirmwareTables)
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return TableIds();
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const size_t tableIdsSize = pEnumSystemFirmwareTables(provider, 0, 0);
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debug_assert(tableIdsSize != 0);
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debug_assert(tableIdsSize % sizeof(TableId) == 0);
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TableIds tableIDs(DivideRoundUp(tableIdsSize, sizeof(TableId)), 0);
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const size_t bytesWritten = pEnumSystemFirmwareTables(provider, &tableIDs[0], tableIdsSize);
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debug_assert(bytesWritten == tableIdsSize);
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return tableIDs;
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}
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Table GetTable(Provider provider, TableId tableId)
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{
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WUTIL_FUNC(pGetSystemFirmwareTable, UINT, (DWORD, DWORD, PVOID, DWORD));
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WUTIL_IMPORT_KERNEL32(GetSystemFirmwareTable, pGetSystemFirmwareTable);
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if(!pGetSystemFirmwareTable)
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return Table();
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const size_t tableSize = pGetSystemFirmwareTable(provider, tableId, 0, 0);
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if(tableSize == 0)
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{
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debug_assert(0);
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return Table();
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}
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Table table(tableSize, 0);
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const size_t bytesWritten = pGetSystemFirmwareTable(provider, tableId, &table[0], tableSize);
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debug_assert(bytesWritten == tableSize);
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return table;
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}
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} // namespace wfirmware
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