Added (partial) SMBIOS support for Linux by reading from sysfs.
3 Version: MPL 1.1/GPL 2.0/LGPL 2.1
5 The contents of this file are subject to the Mozilla Public License Version
6 1.1 (the "License"); you may not use this file except in compliance with
7 the License. You may obtain a copy of the License at
9 http://www.mozilla.org/MPL/
11 Software distributed under the License is distributed on an "AS IS" basis,
12 WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
13 for the specific language governing rights and limitations under the License.
15 The Original Code is the Open Hardware Monitor code.
17 The Initial Developer of the Original Code is
18 Michael Möller <m.moeller@gmx.ch>.
19 Portions created by the Initial Developer are Copyright (C) 2009-2010
20 the Initial Developer. All Rights Reserved.
24 Alternatively, the contents of this file may be used under the terms of
25 either the GNU General Public License Version 2 or later (the "GPL"), or
26 the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
27 in which case the provisions of the GPL or the LGPL are applicable instead
28 of those above. If you wish to allow use of your version of this file only
29 under the terms of either the GPL or the LGPL, and not to allow others to
30 use your version of this file under the terms of the MPL, indicate your
31 decision by deleting the provisions above and replace them with the notice
32 and other provisions required by the GPL or the LGPL. If you do not delete
33 the provisions above, a recipient may use your version of this file under
34 the terms of any one of the MPL, the GPL or the LGPL.
39 using System.Collections.Generic;
41 using System.Threading;
43 namespace OpenHardwareMonitor.Hardware.LPC {
46 private List<ISuperIO> superIOs = new List<ISuperIO>();
47 private StringBuilder report = new StringBuilder();
49 private Chip chip = Chip.Unknown;
52 private ushort[] REGISTER_PORTS = new ushort[] { 0x2e, 0x4e };
53 private ushort[] VALUE_PORTS = new ushort[] { 0x2f, 0x4f };
55 private ushort registerPort;
56 private ushort valuePort;
59 private const byte CONFIGURATION_CONTROL_REGISTER = 0x02;
60 private const byte DEVCIE_SELECT_REGISTER = 0x07;
61 private const byte CHIP_ID_REGISTER = 0x20;
62 private const byte CHIP_REVISION_REGISTER = 0x21;
63 private const byte BASE_ADDRESS_REGISTER = 0x60;
65 private byte ReadByte(byte register) {
66 WinRing0.WriteIoPortByte(registerPort, register);
67 return WinRing0.ReadIoPortByte(valuePort);
70 private ushort ReadWord(byte register) {
71 return (ushort)((ReadByte(register) << 8) |
72 ReadByte((byte)(register + 1)));
75 private void Select(byte logicalDeviceNumber) {
76 WinRing0.WriteIoPortByte(registerPort, DEVCIE_SELECT_REGISTER);
77 WinRing0.WriteIoPortByte(valuePort, logicalDeviceNumber);
81 private const byte IT87_ENVIRONMENT_CONTROLLER_LDN = 0x04;
83 private void IT87Enter() {
84 WinRing0.WriteIoPortByte(registerPort, 0x87);
85 WinRing0.WriteIoPortByte(registerPort, 0x01);
86 WinRing0.WriteIoPortByte(registerPort, 0x55);
87 WinRing0.WriteIoPortByte(registerPort, 0x55);
90 private void IT87Exit() {
91 WinRing0.WriteIoPortByte(registerPort, CONFIGURATION_CONTROL_REGISTER);
92 WinRing0.WriteIoPortByte(valuePort, 0x02);
96 private const byte FINTEK_VENDOR_ID_REGISTER = 0x23;
97 private const ushort FINTEK_VENDOR_ID = 0x1934;
99 private const byte WINBOND_HARDWARE_MONITOR_LDN = 0x0B;
101 private const byte F71858_HARDWARE_MONITOR_LDN = 0x02;
102 private const byte FINTEK_HARDWARE_MONITOR_LDN = 0x04;
104 private void WinbondFintekEnter() {
105 WinRing0.WriteIoPortByte(registerPort, 0x87);
106 WinRing0.WriteIoPortByte(registerPort, 0x87);
109 private void WinbondFintekExit() {
110 WinRing0.WriteIoPortByte(registerPort, 0xAA);
114 private void SMSCEnter() {
115 WinRing0.WriteIoPortByte(registerPort, 0x55);
118 private void SMSCExit() {
119 WinRing0.WriteIoPortByte(registerPort, 0xAA);
123 if (!WinRing0.IsAvailable)
126 for (int i = 0; i < REGISTER_PORTS.Length; i++) {
127 registerPort = REGISTER_PORTS[i];
128 valuePort = VALUE_PORTS[i];
130 WinbondFintekEnter();
132 byte logicalDeviceNumber;
133 byte id = ReadByte(CHIP_ID_REGISTER);
134 byte revision = ReadByte(CHIP_REVISION_REGISTER);
136 logicalDeviceNumber = 0;
142 logicalDeviceNumber = F71858_HARDWARE_MONITOR_LDN;
146 logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;
153 logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;
160 logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;
167 logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;
173 chip = Chip.F71889ED;
174 logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;
182 chip = Chip.W83627HF;
183 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
189 chip = Chip.W83627THF;
190 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
196 chip = Chip.W83687THF;
197 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
201 switch (revision & 0xF0) {
204 chip = Chip.W83627EHF;
205 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
209 switch (revision & 0xF0) {
211 chip = Chip.W83627DHG;
212 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
216 switch (revision & 0xF0) {
218 chip = Chip.W83667HG;
219 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
223 switch (revision & 0xF0) {
225 chip = Chip.W83627DHGP;
226 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
230 switch (revision & 0xF0) {
232 chip = Chip.W83667HGB;
233 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
237 if (chip == Chip.Unknown) {
238 if (id != 0 && id != 0xff) {
241 report.Append("Chip ID: Unknown Winbond / Fintek with ID 0x");
242 report.AppendLine(((id << 8) | revision).ToString("X"));
247 Select(logicalDeviceNumber);
248 ushort address = ReadWord(BASE_ADDRESS_REGISTER);
250 ushort verify = ReadWord(BASE_ADDRESS_REGISTER);
252 ushort vendorID = ReadWord(FINTEK_VENDOR_ID_REGISTER);
256 if (address != verify) {
257 report.Append("Chip ID: 0x");
258 report.AppendLine(chip.ToString("X"));
259 report.Append("Chip revision: 0x");
260 report.AppendLine(revision.ToString("X"));
261 report.AppendLine("Error: Address verification failed");
266 // some Fintek chips have address register offset 0x05 added already
267 if ((address & 0x07) == 0x05)
270 if (address < 0x100 || (address & 0xF007) != 0) {
271 report.Append("Chip ID: 0x");
272 report.AppendLine(chip.ToString("X"));
273 report.Append("Chip revision: 0x");
274 report.AppendLine(revision.ToString("X"));
275 report.Append("Error: Invalid address 0x");
276 report.AppendLine(address.ToString("X"));
283 case Chip.W83627DHGP:
290 superIOs.Add(new W836XX(chip, revision, address));
298 if (vendorID != FINTEK_VENDOR_ID) {
299 report.Append("Chip ID: 0x");
300 report.AppendLine(chip.ToString("X"));
301 report.Append("Chip revision: 0x");
302 report.AppendLine(revision.ToString("X"));
303 report.Append("Error: Invalid vendor ID 0x");
304 report.AppendLine(vendorID.ToString("X"));
308 superIOs.Add(new F718XX(chip, address));
318 ushort chipID = ReadWord(CHIP_ID_REGISTER);
320 case 0x8712: chip = Chip.IT8712F; break;
321 case 0x8716: chip = Chip.IT8716F; break;
322 case 0x8718: chip = Chip.IT8718F; break;
323 case 0x8720: chip = Chip.IT8720F; break;
324 case 0x8726: chip = Chip.IT8726F; break;
325 default: chip = Chip.Unknown; break;
327 if (chip == Chip.Unknown) {
328 if (chipID != 0 && chipID != 0xffff) {
331 report.Append("Chip ID: Unknown ITE with ID 0x");
332 report.AppendLine(chipID.ToString("X"));
336 Select(IT87_ENVIRONMENT_CONTROLLER_LDN);
337 ushort address = ReadWord(BASE_ADDRESS_REGISTER);
339 ushort verify = ReadWord(BASE_ADDRESS_REGISTER);
343 if (address != verify || address < 0x100 || (address & 0xF007) != 0) {
344 report.Append("Chip ID: 0x");
345 report.AppendLine(chip.ToString("X"));
346 report.Append("Error: Invalid address 0x");
347 report.AppendLine(address.ToString("X"));
352 superIOs.Add(new IT87XX(chip, address));
359 chipID = ReadWord(CHIP_ID_REGISTER);
361 default: chip = Chip.Unknown; break;
363 if (chip == Chip.Unknown) {
364 if (chipID != 0 && chipID != 0xffff) {
367 report.Append("Chip ID: Unknown SMSC with ID 0x");
368 report.AppendLine(chipID.ToString("X"));
379 public ISuperIO[] SuperIO {
381 return superIOs.ToArray();
385 public string GetReport() {
386 if (report.Length > 0) {
387 report.Insert(0, "LPCIO" + Environment.NewLine +
388 Environment.NewLine);
389 return report.ToString();