/* SPDX-License-Identifier: GPL-2.0-only */ #include <amdblocks/alib.h> /* The ALIB method object is defined in an SSDT */ External(\_SB.ALIB, MethodObj) /* Wrapper method that calls ALIB function 1 to report current AC/DC state. */ Method (WAL1) { /* Send ALIB Function 1 the AC/DC state */ Local0 = Buffer (0x03) {} CreateWordField (Local0, 0, F1SZ) CreateByteField (Local0, 2, F1DA) /* First argument is size i.e. 3 bytes */ F1SZ = 3 /* * Second argument is power state i.e. AC or DC. * ALIB expects AC = 0, DC = 1. * PWRS reports AC = 1, DC = 0. * * Hence, need to invert the state of PWRS. */ F1DA = \PWRS ^ 1 Printf ("ALIB call: func 1 params %o", Local0) \_SB.ALIB (ALIB_FUNCTION_REPORT_AC_DC_STATE, Local0) }