LG 그램 ACPI/WMI 인터페이스 명세 요약

lge-acpi-spec

\CDP0: Get available devices as mask
    bit0@retval: phy (\WLE0 || \WLE1)
    bit1@retval: hci (\BTPR)
    <WMAB 0x3c>

\CDP1:
    <WMAB 0x3d>

\OWNE: Devices to do Airplane mode toggle, if AIRP == 0 or OSYS <= 0x7d0c and INTK == 1 (otherwise do the rfkill manually in the OS, via \WPC0 or whatever)
    bit0@retval: phy
    bit1@retval: hci
    <WMAB 0x34>

\OSDP: this seems to make custom button events follow the standard ones via notify_id=0x82, don't know what it is for (probably for consistency?)
    <WMAB 0x08>

\FRED: fake key record?
    <WMAB 0x82 - reads FRED on 1, writes to FRED *and* does some addition keystroke faking afterwards>

<WMAB 0x93 - fake a power button press>

\_SB.PCI0.LPCB.H_EC.MAP1.APCT - 0 for standard power button event, 1 for custom wmi (which kinda sux). also affects WMAB 0x93

all GOV bits are 1=en, 0=dis
\_SB.SGOV 0x02020008 <touchpad>
    \_SB.PCI0.LPCB.H_EC.MAP1.TPCT <arg0 = r1/w2, bit1@arg1 = en0/dis1>
        <WMAB 0x30>
\_SB.SGOV 0x02020000 + WCPN <video>    /* WCPN = 9 on my machine */
    \_SB.PCI0.LPCB.H_EC.MAP1.WMBB <unused, 1 or 2, buf>, 0x1
    # buf layout:
    # <dd reqid> <dw val> <dw ??> <dd rescode>
    #
    # in case of webcam, reqid=0x117
    #   val = 1: webcam query
    #     @0x10 <dd zx32 GGOV((0x02020000 + WPCN))> <dd 0> <dd 0> <dd 0>
    #   val = 2: webcam set
    #     @0x10 <dd (en ? 0 : 1)>
\_SB.SGOV 0x0202000a <phy>
    read=\BTRD, write=\BTON
\_SB.SGOV 0x0202000b <hci>
    read=\WLRF, write=\WLON
<phy, hci>
    \WPC0 <arg0 = r1/w2, bit0@arg1 = phy, bit1@arg1 = hci>
        _Q36 <EC Query for airplane key, Fn-F5, Does Notify (HBTN, 0x80) when preprocesses done>
        <WMAB 0x31>

\_SB.PCI0.LPCB.H_EC.RDMD <read mode>
    <WMAB 0xBF, arg1 = r1/w2, bit0@arg2 = en1/dis0>

Notifications:
    HBTN 0x80: Airplane off

Events:
    E4FB94F9-7F2B-4173-AD1A-CD1D95086248 (notify_id=0x80)
        CAUS == EVWL:
            val = (current_state << 16) | EVWL
    EVWL (notify_id=0x80)

WMIs:
\_SB.PCI0.LPCB.H_EC.MAP1.WMAB 0x30 arg0 arg1
    WMI, C3A72B38-D3EF-42D3-8CBB-D5A57049F66D