Clevo laptops based configuration.

[ivan-habl]

Hi, dear hirschmann! Thanks for helpful program.
On Clevo based laptops can control CPU, GPU1 and GPU2 fan from EC. It confirms linux utilite https://github.com/tuxedocomputers/tuxedo-fan-control (I tested it on my Clevo P157SM - it fully works).

The EC code describes on https://github.com/tuxedocomputers/tuxedo-fan-control/blob/master/native/ec_access.cc

I found code for create nbfc config, but it not work ( It is EC code

#define EC_COMMAND_PORT         0x66
#define EC_DATA_PORT            0x62

static void SendCommand(int command)
{
   int tt = 0;
    while((inb(EC_COMMAND_PORT) & 2))
    {
        tt++;
        if(tt>30000)
        {
            break;
        }
    }

    outb(command, EC_COMMAND_PORT);
}

static void WriteData(int data)
{
    while((inb(EC_COMMAND_PORT) & 2));

    outb(data, EC_DATA_PORT);
}

Napi::Boolean SetFanDuty(const Napi::CallbackInfo& info)
{
    EcInit();
    SendCommand(0x99); //in 0x66=102 port command 0x99=153

    switch(index)
    {
        case 1:
            WriteData(0x01); //in 0x62=98 port command 0x1=1
            break;
        case 2:
            WriteData(0x02);
            break;
        case 3:
            WriteData(0x03);
            break;
        default:
            return Napi::Boolean::New(env, false);
    }

    WriteData(fanDuty); //in 0x62 port fan speed
    return Napi::Boolean::New(env, true);
}

And we can read CPU FAN data from 0xCE=206 registry.
There is my config, but it cannot work - only correct read, don't write (( Please, help me to write correct config for my Clevo and other Clevo based laptops.

<?xml version="1.0"?>
<FanControlConfigV2 xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <NotebookModel>Clevo P15SM</NotebookModel>
  <Author>Habl</Author>
  <EcPollInterval>2000</EcPollInterval>
  <ReadWriteWords>false</ReadWriteWords>
  <CriticalTemperature>90</CriticalTemperature>
  <FanConfigurations>
    <FanConfiguration>
      <ReadRegister>206</ReadRegister>
      <WriteRegister>98</WriteRegister>
      <MinSpeedValue>0</MinSpeedValue>
      <MaxSpeedValue>255</MaxSpeedValue>
      <IndependentReadMinMaxValues>false</IndependentReadMinMaxValues>
      <MinSpeedValueRead>0</MinSpeedValueRead>
      <MaxSpeedValueRead>255</MaxSpeedValueRead>
      <ResetRequired>true</ResetRequired>
      <FanSpeedResetValue>0</FanSpeedResetValue>
      <FanDisplayName>CPU fan</FanDisplayName>
      <TemperatureThresholds>
        <TemperatureThreshold>
          <UpThreshold>0</UpThreshold>
          <DownThreshold>0</DownThreshold>
          <FanSpeed>0</FanSpeed>
        </TemperatureThreshold>
        <TemperatureThreshold>
          <UpThreshold>65</UpThreshold>
          <DownThreshold>55</DownThreshold>
          <FanSpeed>100</FanSpeed>
        </TemperatureThreshold>
        <TemperatureThreshold>
          <UpThreshold>75</UpThreshold>
          <DownThreshold>60</DownThreshold>
          <FanSpeed>100</FanSpeed>
        </TemperatureThreshold>
        <TemperatureThreshold>
          <UpThreshold>85</UpThreshold>
          <DownThreshold>70</DownThreshold>
          <FanSpeed>100</FanSpeed>
        </TemperatureThreshold>
        <TemperatureThreshold>
          <UpThreshold>95</UpThreshold>
          <DownThreshold>80</DownThreshold>
          <FanSpeed>100</FanSpeed>
        </TemperatureThreshold>
      </TemperatureThresholds>
      <FanSpeedPercentageOverrides />
    </FanConfiguration>
  </FanConfigurations>
  <RegisterWriteConfigurations>
    <RegisterWriteConfiguration>
      <WriteMode>Set</WriteMode>
      <WriteOccasion>OnInitialization</WriteOccasion>
      <Register>102</Register>
      <Value>153</Value>
      <ResetRequired>true</ResetRequired>
      <ResetValue>0</ResetValue>
      <ResetWriteMode>Set</ResetWriteMode>
      <Description>Set EC to manual control</Description>
    </RegisterWriteConfiguration>
    <RegisterWriteConfiguration>
      <WriteMode>Set</WriteMode>
      <WriteOccasion>OnWriteFanSpeed</WriteOccasion>
      <Register>98</Register>
      <Value>1</Value>
      <ResetRequired>true</ResetRequired>
      <ResetValue>0</ResetValue>
      <ResetWriteMode>Set</ResetWriteMode>
      <Description>Set fan duty</Description>
    </RegisterWriteConfiguration>
  </RegisterWriteConfigurations>
</FanControlConfigV2>

[junocomp]

Hi, take a look at this.

https://github.com/SkyLandTW/clevo-indicator

You might be able to get more information here.

[ivan-habl]

Hi, take a look at this.

https://github.com/SkyLandTW/clevo-indicator

You might be able to get more information here.

Thanks. I looked at the clevo-indicator code. There, the same algorithm controls the registers EC_DATA_PORT and EC_COMMAND_PORT.

[deebfeast]

Hi I'm starting to work on a config for my Clevo NH55RDQ. It has two fans although I'm not sure yet about Nvidia/GPU modes. It might be similar for the whole Clevo NH55xx range and others

As proof of concept I first changed clevo-indicator until it worked so I can now read and set speeds on both fans and this is the logic:

Reading registers (BTW you can also read these directly with EC dumps):
EC_REG_CPU_TEMP 0x07
EC_REG_FAN_DUTY 0xCE
EC_REG_FA2_DUTY 0xCF
EC_REG_FAN_RPMS_HI 0xD0
EC_REG_FAN_RPMS_LO 0xD1
EC_REG_FA2_RPMS_HI 0xD2
EC_REG_FA2_RPMS_LO 0xD3

EC_SC 0x66
EC_DATA 0x62
EC_SC_READ_CMD = 0x80

• wait for byte to be read on EC_SC with bit 1 set (ec_io_wait)
• write EC_SC_READ_CMD to EC_SC
• wait for byte to be read on EC_SC with bit 1 set (ec_io_wait)
• write EC_REG_xx to EC_DATA
• wait for byte to be read on EC_SC with bit 0 unset (ec_io_wait)
• read EC_DATA

For writing it goes like this:

DUTY = duty_percentage / 100.0 * 255.0
EC_SC 0x66
EC_DATA 0x62
EC_WRITE_CMD 0x99
EC_FAN 0x01 or 0x02 (so for two fans run it twice)

• wait for byte to be read on EC_SC with bit 1 set (ec_io_wait)
• write EC_WRITE_CMD to EC_SC
• wait for byte to be read on EC_SC with bit 1 set (ec_io_wait)
• write EC_FAN to EC_DATA
• wait for byte to be read on EC_SC with bit 1 set (ec_io_wait)
• write DUTY to EC_DATA
• wait for byte to be read on EC_SC with bit 1 set (ec_io_wait)

Now this seems to work well enough but next step to see if nbfc can do the controlling. The clevo-indicator can do some auto-magic but it's setuid in the end which doesn't feel right. Well I'm putting it out here in case since I don't know when I can work on the next step. If anyone really wants clevo-indicator I can supply the modifications but perhaps let me test it another week :)

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