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View Code? Open in Web Editor NEWI2C/SPI probe for Windows 10
License: Microsoft Public License
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Trekstor C13 Touchpad logging.
Thank you for writing this guide and driver!
related bug: https://bugzilla.redhat.com/show_bug.cgi?id=1526312
Background
Problem/why we want to log:
The Linux i2c driver does not seem to work with the touchpad of this laptop although it uses the default microsoft driver. Since we did not find the root cause of the issue we want to probe the windows driver.
what was done
The DSDT and SSDT tables have been extracted with a tool called rwanything and recompiled with iasl. There were some external definitions missing so the following refs.txt was used:
External(MDBG, MethodObj, 1)
External(_GPE.MMTB, MethodObj, 0)
External(_SB.PCI0.LPCB.H_EC.ECWT, MethodObj, 2)
External(_SB.PCI0.LPCB.H_EC.ECRD, MethodObj, 1)
External(_SB.PCI0.LPCB.H_EC.ECMD, MethodObj, 1)
External(_SB.PCI0.PEG0.PEGP.SGPO, MethodObj, 2)
External(_SB.PCI0.GFX0.DD02._BCM, MethodObj, 1)
External(_SB.PCI0.SAT0.SDSM, MethodObj, 4)
External(_GPE.VHOV, MethodObj, 3)
The Patch used for the DSDT file is:
*** C:/Users/enaut/Downloads/DSDT.dsl Wed Mar 07 20:59:04 2018
--- C:/Users/enaut/Downloads/DSDT-mod2.dsl Wed Mar 07 21:07:29 2018
***************
*** 18,24 ****
* Compiler ID "INTL"
* Compiler Version 0x20120913 (538052883)
*/
! DefinitionBlock ("", "DSDT", 2, "ALASKA", "A M I ", 0x01072009)
{
/*
* External declarations were imported from
--- 18,24 ----
* Compiler ID "INTL"
* Compiler Version 0x20120913 (538052883)
*/
! DefinitionBlock ("", "DSDT", 2, "ALASKA", "A M I ", 0x01072010)
{
/*
* External declarations were imported from
***************
*** 4422,4427 ****
--- 4422,4444 ----
{
Return (RBUF) /* \_SB_.PCI0.I2C2.RBUF */
}
+
+ Device(SPB1)
+ {
+ Name(_HID, "DEBDEBD")
+ Name(_UID, 1)
+ Method(_CRS, 0x0, NotSerialized)
+ {
+ Name (RBUF, ResourceTemplate ()
+ {
+ I2cSerialBusV2 (0x002C, ControllerInitiated, 0x000186A0,
+ AddressingMode7Bit, "\\_SB.PCI0.I2C2",
+ 0x00, ResourceConsumer, , Exclusive,
+ )
+ })
+ Return(RBUF)
+ }
+ }
Device (TPD0)
{
***************
*** 4433,4439 ****
Name (SBFB, ResourceTemplate ()
{
I2cSerialBusV2 (0x002C, ControllerInitiated, 0x000186A0,
! AddressingMode7Bit, "\\_SB.PCI0.I2C2",
0x00, ResourceConsumer, , Exclusive,
)
})
--- 4450,4456 ----
Name (SBFB, ResourceTemplate ()
{
I2cSerialBusV2 (0x002C, ControllerInitiated, 0x000186A0,
! AddressingMode7Bit, "\\_SB.PCI0.SPB1",
0x00, ResourceConsumer, , Exclusive,
)
})Adjustments not in the instructions
Note: The name spbProbe was not working so I used DEBDEBD (conditions were: 6-7 Letters, only capitals, only hexadecimal). I don't understand the last one since there are lots of non hexadecimal names around.
Since the driver did not install to the probing device I changed the name in the drivers .inf too:
line 45: %spbProbe.DeviceDesc%=spbProbe_Device, ACPI\spbProbe
to
line 45: %spbProbe.DeviceDesc%=spbProbe_Device, ACPI\DEBDEBD
The current problem:
- The driver is installed and listed in
Device manager->System deviceswith no error. - The touchpad is not working and the error in the Device manager reads:
This error is not in the HID-compatible Touchpad device but in I2C HID-Device. The original touchpad device vanished. Without the DSDT overload this device is there and occupies the resource IRQ 0x00000400 (1024)
This device cannot find enough free resources that it can use. (Code 12) If you want to use this device, you will need to disable one of the other devices on this system. - The Problem code in the I2C HID-Device driver is
0000000C - The Problem status is
Object Name not found. C0000034
I suspect I did something wrong with my changes of either the ASL or the drivers inf. But as I only came that far using educated guesses and pattern matching I do understand nothing of the language.
Can you help me identify the problem?
Make a new release
The latest changes in the README made the current release a little bit difficult to use as users need to update some files themselves.
An release would be a good idea to fix that.
Question regarding SMBus communication
Hello,
I find this project very intresting, but i kinda dont understand how to use it for my purpose.
I want to Read/Write Block (SMBus functions/protocols) from Windows OS.
My intel I7 silicon is connected to Embedded Controller (which is again connected to 2 devices via SMBus). I want to read/write/probe those SDA and SCL lines of those two devices.
Can this be done using this project?
Regards.
Tong Fang GK5CN5Z touchpad logging not working
I'm in a very similar situation to @enaut from #1 in that I'm trying to get an i2c touchpad working under Linux. This time on a Tong Fang GK5CN5Z.
I've been trying to run through the steps in the redhat bug, which is how I ended up here. - I've opened a bug for this particular issue in the kernel bug tracker but so far it hasn't had any attention. (It doesn't help that I ran into a different bug first, but that isn't related at this point because the touchpad works fine under windows and my current holdup is not being able to get an i2c trace.)
I've followed the steps used there, including the renaming of the device to DEBDEBD in the dsdl and .inf file. I ran into the same symptoms as that bug: This device cannot find enough free resources that it can use. (Code 12) - however, the steps there didn't completely fix my problems.
I now have an issue with the touchpad (i2c hid device) saying:
This device cannot start. (Code 10)
A request for the HID descriptor failed.
I had to extract the dsdt with iasl.exe, and recompile it with the same. I've checked, and I can use the touchpad using a recompiled dsdt without modification except for incrementing the serial number. So, I suspect that I've done something wrong with my modificaition of the dsdt.
The extracted code for the i2c controlled with the touchpad originally looked like this:
Scope (_SB.PCI0.I2C0)
{
Device (TPAD)
{
Name (SADR, 0x2C)
Name (HADR, 0x0020)
Name (_ADR, Zero) // _ADR: Address
Name (_HID, "UNIW0001") // _HID: Hardware ID
Name (_CID, "PNP0C50" /* HID Protocol Device (I2C bus) */) // _CID: Compatible ID
Name (_UID, One) // _UID: Unique ID
Name (_S0W, Zero) // _S0W: S0 Device Wake State
Name (SBFB, ResourceTemplate ()
{
I2cSerialBusV2 (0x0000, ControllerInitiated, 0x00061A80,
AddressingMode7Bit, "\\_SB.PCI0.I2C0",
0x00, ResourceConsumer, _Y60, Exclusive,
)
})
CreateByteField (SBFB, \_SB.PCI0.I2C0.TPAD._Y60._ADR, BADR) // _ADR: Address
Name (SBFI, ResourceTemplate ()
{
GpioInt (Level, ActiveLow, Exclusive, PullNone, 0x0000,
"\\_SB.PCI0.GPI0", 0x00, ResourceConsumer, ,
)
{ // Pin list
0x0000
}
})
CreateWordField (SBFI, 0x17, INTA)
Method (_INI, 0, NotSerialized) // _INI: Initialize
{
BADR = SADR /* \_SB_.PCI0.I2C0.TPAD.SADR */
INTA = GNUM (0x03040007)
}
Method (_STA, 0, NotSerialized) // _STA: Status
{
If ((OTPM != 0x02))
{
Return (Zero)
}
Return (0x0F)
}
Method (_CRS, 0, Serialized) // _CRS: Current Resource Settings
{
Return (ConcatenateResTemplate (SBFB, SBFI))
}
Method (_DSM, 4, Serialized) // _DSM: Device-Specific Method
{
If ((Arg0 == ToUUID ("3cdff6f7-4267-4555-ad05-b30a3d8938de") /* HID I2C Device */))
{
If ((Arg2 == Zero))
{
If ((Arg1 == One))
{
Return (Buffer (One)
{
0x03 // .
})
}
Else
{
Return (Buffer (One)
{
0x00 // .
})
}
}
If ((Arg2 == One))
{
Return (HADR) /* \_SB_.PCI0.I2C0.TPAD.HADR */
}
}
Return (Buffer (One)
{
0x00 // .
})
}
}
}
Here is the diff for the file:
--- dsdt-new.dsl 2018-08-19 16:02:40.724674100 +0100
+++ dsdt-inject.dsl 2018-08-20 00:25:49.093439100 +0100
@@ -18,7 +18,7 @@
* Compiler ID "INTL"
* Compiler Version 0x20160527 (538314023)
*/
-DefinitionBlock ("", "DSDT", 2, "PCS", "laptop", 0x01072009)
+DefinitionBlock ("", "DSDT", 2, "PCS", "laptop", 0x01072013)
{
External (_GPE.AL6F, MethodObj) // 0 Arguments
External (_GPE.HLVT, MethodObj) // 0 Arguments
@@ -52782,6 +52782,23 @@
Scope (_SB.PCI0.I2C0)
{
+ Device(SPB1)
+ {
+ Name(_HID, "DEBDEBD")
+ Name(_UID, 1)
+ Method(_CRS, 0x0, NotSerialized)
+ {
+ Name (RBUF, ResourceTemplate ()
+ {
+ I2cSerialBusV2 (0x0000, ControllerInitiated, 0x00061A80,
+ AddressingMode7Bit, "\\_SB.PCI0.I2C0",
+ 0x00, ResourceConsumer, , Exclusive,
+ )
+ })
+ Return(RBUF)
+ }
+ }
+
Device (TPAD)
{
Name (SADR, 0x2C)
@@ -52794,7 +52811,7 @@
Name (SBFB, ResourceTemplate ()
{
I2cSerialBusV2 (0x0000, ControllerInitiated, 0x00061A80,
- AddressingMode7Bit, "\\_SB.PCI0.I2C0",
+ AddressingMode7Bit, "\\_SB.PCI0.I2C0.SPB1",
0x00, ResourceConsumer, _Y60, Exclusive,
)
})
I'm not sure what _Y60 is in this context, but I've tried leaving it out and it doesn't seem to make any difference.
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