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/* SPDX-License-Identifier: GPL-2.0-only */
Device (UCSI)
{
Name (_HID, "GOOG000E")
Name (_CID, EisaId ("PNP0CA0"))
Name (_DDN, "Wilco EC UCSI")
Name (_UID, One)
Name (_STA, 0xf)
/* Value written to EC control register to start UCSI command */
Name (UCMD, 0xE0)
/* Shared memory fields are defined in the SSDT */
External (VER0, FieldUnitObj)
External (VER1, FieldUnitObj)
External (CCI0, FieldUnitObj)
External (CCI1, FieldUnitObj)
External (CCI2, FieldUnitObj)
External (CCI3, FieldUnitObj)
External (CTL0, FieldUnitObj)
External (CTL1, FieldUnitObj)
External (CTL2, FieldUnitObj)
External (CTL3, FieldUnitObj)
External (CTL4, FieldUnitObj)
External (CTL5, FieldUnitObj)
External (CTL6, FieldUnitObj)
External (CTL7, FieldUnitObj)
External (MGI0, FieldUnitObj)
External (MGI1, FieldUnitObj)
External (MGI2, FieldUnitObj)
External (MGI3, FieldUnitObj)
External (MGI4, FieldUnitObj)
External (MGI5, FieldUnitObj)
External (MGI6, FieldUnitObj)
External (MGI7, FieldUnitObj)
External (MGI8, FieldUnitObj)
External (MGI9, FieldUnitObj)
External (MGIA, FieldUnitObj)
External (MGIB, FieldUnitObj)
External (MGIC, FieldUnitObj)
External (MGID, FieldUnitObj)
External (MGIE, FieldUnitObj)
External (MGIF, FieldUnitObj)
External (MGO0, FieldUnitObj)
External (MGO1, FieldUnitObj)
External (MGO2, FieldUnitObj)
External (MGO3, FieldUnitObj)
External (MGO4, FieldUnitObj)
External (MGO5, FieldUnitObj)
External (MGO6, FieldUnitObj)
External (MGO7, FieldUnitObj)
External (MGO8, FieldUnitObj)
External (MGO9, FieldUnitObj)
External (MGOA, FieldUnitObj)
External (MGOB, FieldUnitObj)
External (MGOC, FieldUnitObj)
External (MGOD, FieldUnitObj)
External (MGOE, FieldUnitObj)
External (MGOF, FieldUnitObj)
Method (INIT)
{
/* Read UCSI version from EC into shared memory */
^VER0 = R (^^UVR0)
^VER1 = R (^^UVR1)
}
Method (_DSM, 4, Serialized)
{
If (Arg0 != ToUUID ("6f8398c2-7ca4-11e4-ad36-631042b5008f")) {
Return (Buffer (One) { Zero })
}
Switch (ToInteger (Arg2))
{
Case (Zero)
{
Return (Buffer (One) { 0x07 })
}
Case (One)
{
/* Write Message Out */
W (^^UMO0, ^MGO0)
W (^^UMO1, ^MGO1)
W (^^UMO2, ^MGO2)
W (^^UMO3, ^MGO3)
W (^^UMO4, ^MGO4)
W (^^UMO5, ^MGO5)
W (^^UMO6, ^MGO6)
W (^^UMO7, ^MGO7)
W (^^UMO8, ^MGO8)
W (^^UMO9, ^MGO9)
W (^^UMOA, ^MGOA)
W (^^UMOB, ^MGOB)
W (^^UMOC, ^MGOC)
W (^^UMOD, ^MGOD)
W (^^UMOE, ^MGOE)
W (^^UMOF, ^MGOF)
/* Write Control */
W (^^UCL0, ^CTL0)
W (^^UCL1, ^CTL1)
W (^^UCL2, ^CTL2)
W (^^UCL3, ^CTL3)
W (^^UCL4, ^CTL4)
W (^^UCL5, ^CTL5)
W (^^UCL6, ^CTL6)
W (^^UCL7, ^CTL7)
/* Start EC Command */
W (^^UCTL, ^UCMD)
}
Case (2)
{
/* Read Message In */
^MGI0 = R (^^UMI0)
^MGI1 = R (^^UMI1)
^MGI2 = R (^^UMI2)
^MGI3 = R (^^UMI3)
^MGI4 = R (^^UMI4)
^MGI5 = R (^^UMI5)
^MGI6 = R (^^UMI6)
^MGI7 = R (^^UMI7)
^MGI8 = R (^^UMI8)
^MGI9 = R (^^UMI9)
^MGIA = R (^^UMIA)
^MGIB = R (^^UMIB)
^MGIC = R (^^UMIC)
^MGID = R (^^UMID)
^MGIE = R (^^UMIE)
^MGIF = R (^^UMIF)
/* Read Status */
^CCI0 = R (^^UCI0)
^CCI1 = R (^^UCI1)
^CCI2 = R (^^UCI2)
^CCI3 = R (^^UCI3)
}
}
Return (Buffer (One) { Zero })
}
}
|
