Re: Acer-WMI: Iconia TAB W500 gyrosensor

[Marek Vasut <marek.vasut@gmail.com>]

Dear joeyli,
> 
> > Hi Marek,
> > 
> > 於 二，2012-05-01 於 17:31 +0200，Marek Vasut 提到：
> > 
> > > Hello,
> > > 
> > > I've been poking around the W500 gyrosensor.
> > 
> > Interesting!
> > 
> > > * When the device is tilted, it generates PNP0C14 event.
> > > * This is caught by acer_wmi_notify() in
> > > drivers/platform/x86/acer-wmi.c
> > > 
> > > Now it gets interesting ;-)
> > > 
> > > The obj->buffer.pointer contains the following:
> > > 0x05 0x01 0x00 0x00 0x00 0x00 0x00 0x00
> > > 
> > > That means, return_value.function is 0x05, instead of 0x01
> > > (WMID_HOTKEY_EVENT).
> > 
> > Yes, the 0x05 event is a event reflect to g-sensor, but I don't have any
> > hardware can test it.
> > 
> > Did you see any other value but not just "0x05 0x01 0x00 0x00 0x00 0x00
> > 0x00 0x00" ?
> 
> Nope, nothing at all. I flipped it back and forth, no result :(
> 
> > I mean if you invert your table, did you see other return value? The
> > return data must point to Portrait or Landscape view.
> 
> Nope, still zeroes. This is only some interrupt-like event I believe. My
> opinion is, I need to call some WMI method to actually read-back the data.
> 
> > > I've been poking around for quite a bit, but so far didn't get any
> > > further data from it but this event. Any idea how to progress please? I
> > > think I just need to call some of the methods (see below) that'll
> > > return the values from the gyrosensor.
> > > 
> > > Find "fwts wmi -" below:
> > > 
> > > 00012 wmi             Test 1 of 2: Check Windows Management
> > > Instrumentation in DSDT
> > > 00013 wmi             Found WMI Event, Notifier ID: 0xbc, GUID:
> > > 676AA15E-6A47-4D9F-A2CC-1E6D18D14026, Instance 0x01
> > > 00014 wmi             PASSED: Test 1, GUID
> > > 676AA15E-6A47-4D9F-A2CC-1E6D18D14026 is handled by driver acer-wmi
> > > (Vendor: Acer).
> > > 00015 wmi             Found WMI Method WMAA with GUID:
> > > 61EF69EA-865C-4BC3-A502- A0DEBA0CB531, Instance 0x01
> > > 00016 wmi             PASSED: Test 1, GUID
> > > 61EF69EA-865C-4BC3-A502-A0DEBA0CB531 is handled by driver acer-wmi
> > > (Vendor: Acer).
> > > 00017 wmi             Found WMI Method WMBL with GUID:
> > > FE1DBBDA-3014-4856-870C-5B3A744BF341, Instance 0x01
> > > 00018 wmi             Found WMI Method WMBE with GUID:
> > > 79772EC5-04B1-4BFD-843C-61E7F77B6CC9, Instance 0x01
> > > 00019 wmi             Found WMI Method WMBK with GUID:
> > > F75F5666-B8B3-4A5D- A91C-7488F62E5637, Instance 0x01
> > > 00020 wmi             Found WMI Object, Object ID AB, GUID:
> > > 05901221-D566-11D1- B2F0-00A0C9062910, Instance 0x01, Flags: 00
> > > 00021 wmi             Found WMI Object, Object ID 00, GUID:
> > > 39142400-C6A3-40FA- BADB-8A2652834100, Instance 0x01, Flags: 01
> > > WMI_EXPENSIVE
> > > 00022 wmi             Found WMI Object, Object ID 01, GUID:
> > > 49142400-C6A3-40FA- BADB-8A2652834100, Instance 0x01, Flags: 01
> > > WMI_EXPENSIVE
> > > 00023 wmi             Found WMI Object, Object ID 02, GUID:
> > > 4A142400-C6A3-40FA- BADB-8A2652834100, Instance 0x01, Flags: 01
> > > WMI_EXPENSIVE
> > > 00024 wmi             Found WMI Object, Object ID 11, GUID:
> > > 49142401-C6A3-40FA- BADB-8A2652834100, Instance 0x01, Flags: 01
> > > WMI_EXPENSIVE
> > > 00025 wmi             Found WMI Object, Object ID 12, GUID:
> > > 4A142401-C6A3-40FA- BADB-8A2652834100, Instance 0x01, Flags: 01
> > > WMI_EXPENSIVE
> > > 00026 wmi             Found WMI Object, Object ID 21, GUID:
> > > 49142402-C6A3-40FA- BADB-8A2652834100, Instance 0x01, Flags: 01
> > > WMI_EXPENSIVE
> > > 00027 wmi             Found WMI Object, Object ID 22, GUID:
> > > 4A142402-C6A3-40FA- BADB-8A2652834100, Instance 0x01, Flags: 01
> > > WMI_EXPENSIVE
> > > 00028 wmi             Found WMI Object, Object ID 31, GUID:
> > > 49142403-C6A3-40FA- BADB-8A2652834100, Instance 0x01, Flags: 01
> > > WMI_EXPENSIVE
> > > 00029 wmi             Found WMI Object, Object ID 32, GUID:
> > > 4A142403-C6A3-40FA- BADB-8A2652834100, Instance 0x01, Flags: 01
> > > WMI_EXPENSIVE
> > > 00030 wmi             Found WMI Object, Object ID 41, GUID:
> > > 49142404-C6A3-40FA- BADB-8A2652834100, Instance 0x01, Flags: 01
> > > WMI_EXPENSIVE
> > > 00031 wmi             Found WMI Object, Object ID 42, GUID:
> > > 4A142404-C6A3-40FA- BADB-8A2652834100, Instance 0x01, Flags: 01
> > > WMI_EXPENSIVE
> > > 00032 wmi             Found WMI Object, Object ID 51, GUID:
> > > 49142405-C6A3-40FA- BADB-8A2652834100, Instance 0x01, Flags: 01
> > > WMI_EXPENSIVE
> > > 00033 wmi             Found WMI Object, Object ID 52, GUID:
> > > 4A142405-C6A3-40FA- BADB-8A2652834100, Instance 0x01, Flags: 01
> > > WMI_EXPENSIVE
> > > 00034 wmi             Found WMI Object, Object ID 61, GUID:
> > > 49142406-C6A3-40FA- BADB-8A2652834100, Instance 0x01, Flags: 01
> > > WMI_EXPENSIVE
> > > 00035 wmi             Found WMI Object, Object ID 62, GUID:
> > > 4A142406-C6A3-40FA- BADB-8A2652834100, Instance 0x01, Flags: 01
> > > WMI_EXPENSIVE
> > > 00036 wmi             Found WMI Object, Object ID 71, GUID:
> > > 49142407-C6A3-40FA- BADB-8A2652834100, Instance 0x01, Flags: 01
> > > WMI_EXPENSIVE
> > > 00037 wmi             Found WMI Object, Object ID 72, GUID:
> > > 4A142407-C6A3-40FA- BADB-8A2652834100, Instance 0x01, Flags: 01
> > > WMI_EXPENSIVE
> > > 00038 wmi             Found WMI Event, Notifier ID: 0x80, GUID:
> > > 59142400- C6A3-40FA-BADB-8A2652834100, Instance 0x01
> > > 00039 wmi             FAILED [MEDIUM] WMIUnknownGUID: Test 1, GUID
> > > 59142400- C6A3-40FA-BADB-8A2652834100 is unknown to the kernel, a
> > > driver may need to be implemented for this GUID.
> > > 00040 wmi
> > > 00041 wmi             ADVICE: A WMI driver probably needs to be written
> > > for this event.
> > > 00042 wmi             It can checked for using: wmi_has_guid("59142400-
> > > C6A3-40FA-BADB-8A2652834100").
> > > 00043 wmi             One can install a notify handler using
> > > wmi_install_notify_handler("59142400-C6A3-40FA-BADB-8A2652834100",
> > > handler, NULL).
> > > 00044 wmi             http://lwn.net/Articles/391230 describes how to
> > > write an appropriate driver.
> > > 00045 wmi
> > > 00046 wmi             Found WMI Method WM05 with GUID:
> > > 69142400-C6A3-40FA- BADB-8A2652834100, Instance 0x01
> > > 00047 wmi             Found WMI Method WM06 with GUID:
> > > 79142400-C6A3-40FA- BADB-8A2652834100, Instance 0x01
> > > 00048 wmi             Found WMI Method WM07 with GUID:
> > > 89142400-C6A3-40FA- BADB-8A2652834100, Instance 0x01
> > > 00049 wmi             Found WMI Object, Object ID BA, GUID:
> > > 05901221-D566-11D1- B2F0-00A0C9062910, Instance 0x01, Flags: 01
> > > WMI_EXPENSIVE
> > > 00050 wmi
> > > 00051 wmi             Test 2 of 2: Check Windows Management
> > > Instrumentation in SSDT
> > > 00052 wmi             No WMI data found in table SSDT1.
> > > 00053 wmi             No WMI data found in table SSDT2.
> > > 
> > > Best regards,
> > > Marek Vasut
> > 
> > Could you please kindly share the acpidump to me?
> > 
> >  # acpidump > acpidump.dat
> 
> Find attached. Thanks for your reply, I'm really lost with this, I spent
> some time on it and got nowhere :-(

Did you get anywhere with this stuff? Is there any way I can help you with this?

Thank you!

> 
> > Thanks a lot!
> > Joey Lee

Best regards,
Marek Vasut