Added support for Intel Atom N2xxx, D2xxx, C2xxx, E3xxx and Z3xxx CPUs (Fixed Issue 610, Issue 422 and Issue 647).
3 This Source Code Form is subject to the terms of the Mozilla Public
4 License, v. 2.0. If a copy of the MPL was not distributed with this
5 file, You can obtain one at http://mozilla.org/MPL/2.0/.
7 Copyright (C) 2011 Michael Möller <mmoeller@openhardwaremonitor.org>
12 using System.ComponentModel;
13 using System.Runtime.InteropServices;
16 namespace OpenHardwareMonitor.Hardware {
18 internal static class FirmwareTable {
20 public static byte[] GetTable(Provider provider, string table) {
21 int id = table[3] << 24 | table[2] << 16 | table[1] << 8 | table[0];
22 return GetTable(provider, id);
25 public static byte[] GetTable(Provider provider, int table) {
29 size = NativeMethods.GetSystemFirmwareTable(provider, table,
31 } catch (DllNotFoundException) { return null; }
32 catch (EntryPointNotFoundException) { return null; }
37 IntPtr nativeBuffer = Marshal.AllocHGlobal(size);
38 NativeMethods.GetSystemFirmwareTable(provider, table, nativeBuffer, size);
40 if (Marshal.GetLastWin32Error() != 0)
43 byte[] buffer = new byte[size];
44 Marshal.Copy(nativeBuffer, buffer, 0, size);
45 Marshal.FreeHGlobal(nativeBuffer);
50 public static string[] EnumerateTables(Provider provider) {
53 size = NativeMethods.EnumSystemFirmwareTables(
54 provider, IntPtr.Zero, 0);
55 } catch (DllNotFoundException) { return null; }
56 catch (EntryPointNotFoundException) { return null; }
58 IntPtr nativeBuffer = Marshal.AllocHGlobal(size);
59 NativeMethods.EnumSystemFirmwareTables(
60 provider, nativeBuffer, size);
61 byte[] buffer = new byte[size];
62 Marshal.Copy(nativeBuffer, buffer, 0, size);
63 Marshal.FreeHGlobal(nativeBuffer);
65 string[] result = new string[size / 4];
66 for (int i = 0; i < result.Length; i++)
67 result[i] = Encoding.ASCII.GetString(buffer, 4 * i, 4);
72 public enum Provider : int {
73 ACPI = (byte)'A' << 24 | (byte)'C' << 16 | (byte)'P' << 8 | (byte)'I',
74 FIRM = (byte)'F' << 24 | (byte)'I' << 16 | (byte)'R' << 8 | (byte)'M',
75 RSMB = (byte)'R' << 24 | (byte)'S' << 16 | (byte)'M' << 8 | (byte)'B'
78 private static class NativeMethods {
79 private const string KERNEL = "kernel32.dll";
81 [DllImport(KERNEL, CallingConvention = CallingConvention.Winapi,
83 public static extern int EnumSystemFirmwareTables(
84 Provider firmwareTableProviderSignature,
85 IntPtr firmwareTableBuffer, int bufferSize);
87 [DllImport(KERNEL, CallingConvention = CallingConvention.Winapi,
89 public static extern int GetSystemFirmwareTable(
90 Provider firmwareTableProviderSignature,
91 int firmwareTableID, IntPtr firmwareTableBuffer, int bufferSize);