Added sub-hardware support and basic enumeration for mainboards.
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
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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
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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 {
44 public class LPCGroup : IGroup {
45 private List<IHardware> hardware = new List<IHardware>();
47 private Chip chip = Chip.Unknown;
50 private ushort[] REGISTER_PORTS = new ushort[] { 0x2e, 0x4e };
51 private ushort[] VALUE_PORTS = new ushort[] { 0x2f, 0x4f };
53 private ushort registerPort;
54 private ushort valuePort;
57 private const byte CONFIGURATION_CONTROL_REGISTER = 0x02;
58 private const byte DEVCIE_SELECT_REGISTER = 0x07;
59 private const byte CHIP_ID_REGISTER = 0x20;
60 private const byte CHIP_REVISION_REGISTER = 0x21;
61 private const byte BASE_ADDRESS_REGISTER = 0x60;
63 private byte ReadByte(byte register) {
64 WinRing0.WriteIoPortByte(registerPort, register);
65 return WinRing0.ReadIoPortByte(valuePort);
68 private ushort ReadWord(byte register) {
69 return (ushort)((ReadByte(register) << 8) |
70 ReadByte((byte)(register + 1)));
73 private void Select(byte logicalDeviceNumber) {
74 WinRing0.WriteIoPortByte(registerPort, DEVCIE_SELECT_REGISTER);
75 WinRing0.WriteIoPortByte(valuePort, logicalDeviceNumber);
79 private const byte IT87_ENVIRONMENT_CONTROLLER_LDN = 0x04;
81 private void IT87Enter() {
82 WinRing0.WriteIoPortByte(registerPort, 0x87);
83 WinRing0.WriteIoPortByte(registerPort, 0x01);
84 WinRing0.WriteIoPortByte(registerPort, 0x55);
85 WinRing0.WriteIoPortByte(registerPort, 0x55);
88 internal void IT87Exit() {
89 WinRing0.WriteIoPortByte(registerPort, CONFIGURATION_CONTROL_REGISTER);
90 WinRing0.WriteIoPortByte(valuePort, 0x02);
94 private const byte FINTEK_VENDOR_ID_REGISTER = 0x23;
95 private const ushort FINTEK_VENDOR_ID = 0x1934;
97 private const byte WINBOND_HARDWARE_MONITOR_LDN = 0x0B;
99 private const byte F71858_HARDWARE_MONITOR_LDN = 0x02;
100 private const byte FINTEK_HARDWARE_MONITOR_LDN = 0x04;
102 private void WinbondFintekEnter() {
103 WinRing0.WriteIoPortByte(registerPort, 0x87);
104 WinRing0.WriteIoPortByte(registerPort, 0x87);
107 private void WinbondFintekExit() {
108 WinRing0.WriteIoPortByte(registerPort, 0xAA);
112 if (!WinRing0.IsAvailable)
115 for (int i = 0; i < REGISTER_PORTS.Length; i++) {
116 registerPort = REGISTER_PORTS[i];
117 valuePort = VALUE_PORTS[i];
119 WinbondFintekEnter();
121 byte logicalDeviceNumber;
122 byte id = ReadByte(CHIP_ID_REGISTER);
123 byte revision = ReadByte(CHIP_REVISION_REGISTER);
125 logicalDeviceNumber = 0;
131 logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;
138 logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;
145 logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;
152 logicalDeviceNumber = FINTEK_HARDWARE_MONITOR_LDN;
159 chip = Chip.W83627HF;
160 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
166 chip = Chip.W83627THF;
167 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
171 switch (revision & 0xF0) {
173 chip = Chip.W83627EHF;
174 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
178 switch (revision & 0xF0) {
180 chip = Chip.W83627DHG;
181 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
185 switch (revision & 0xF0) {
187 chip = Chip.W83667HG;
188 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
192 switch (revision & 0xF0) {
194 chip = Chip.W83627DHGP;
195 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
199 switch (revision & 0xF0) {
201 chip = Chip.W83667HGB;
202 logicalDeviceNumber = WINBOND_HARDWARE_MONITOR_LDN;
206 if (chip != Chip.Unknown) {
208 Select(logicalDeviceNumber);
209 ushort address = ReadWord(BASE_ADDRESS_REGISTER);
211 ushort verify = ReadWord(BASE_ADDRESS_REGISTER);
214 if (chip == Chip.F71862 || chip == Chip.F71882 || chip == Chip.F71889)
215 vendorID = ReadWord(FINTEK_VENDOR_ID_REGISTER);
219 if (address != verify)
222 // some Fintek chips have address register offset 0x05 added already
223 if ((address & 0x07) == 0x05)
226 if (address < 0x100 || (address & 0xF007) != 0)
231 case Chip.W83627DHGP:
237 W836XX w836XX = new W836XX(chip, revision, address);
238 if (w836XX.IsAvailable)
239 hardware.Add(w836XX);
244 if (vendorID == FINTEK_VENDOR_ID)
245 hardware.Add(new F718XX(chip, address));
248 hardware.Add(new F718XX(chip, address));
258 switch (ReadWord(CHIP_ID_REGISTER)) {
259 case 0x8716: chip = Chip.IT8716F; break;
260 case 0x8718: chip = Chip.IT8718F; break;
261 case 0x8720: chip = Chip.IT8720F; break;
262 case 0x8726: chip = Chip.IT8726F; break;
263 default: chip = Chip.Unknown; break;
266 if (chip != Chip.Unknown) {
267 Select(IT87_ENVIRONMENT_CONTROLLER_LDN);
268 ushort address = ReadWord(BASE_ADDRESS_REGISTER);
270 ushort verify = ReadWord(BASE_ADDRESS_REGISTER);
274 if (address != verify || address < 0x100 || (address & 0xF007) != 0)
277 IT87XX it87 = new IT87XX(chip, address);
278 if (it87.IsAvailable)
286 public IHardware[] Hardware {
288 return hardware.ToArray();
292 public string GetReport() {
296 public void Close() { }