alib.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <acpi/acpigen.h>
#include <amdblocks/alib.h>
#include <types.h>
 
static void acpigen_dptc_call_alib(const char *buf_name, uint8_t *buffer, size_t size)
{
        /* Name (buf_name, Buffer(size) {...} */
        acpigen_write_name(buf_name);
        acpigen_write_byte_buffer(buffer, size);
 
        /* \_SB.ALIB(0xc, buf_name) */
        acpigen_emit_namestring("\\_SB.ALIB");
        acpigen_write_integer(ALIB_FUNCTION_DYNAMIC_POWER_THERMAL_CONFIG);
        acpigen_emit_namestring(buf_name);
}
 
void acpigen_write_alib_dptc(uint8_t *default_param, size_t default_param_len,
        uint8_t *tablet_param, size_t tablet_param_len)
{
        /* Scope (\_SB) */
        acpigen_write_scope("\\_SB");
 
        /* Method(DPTC, 0, Serialized) */
        acpigen_write_method_serialized("DPTC", 0);
 
        /* TODO: The code assumes that if DPTC gets called the following object exists */
        /* If (LEqual ("\_SB.PCI0.LPCB.EC0.TBMD", 1)) */
        acpigen_write_if_lequal_namestr_int("\\_SB.PCI0.LPCB.EC0.TBMD", 1);
 
        acpigen_dptc_call_alib("TABB", tablet_param, tablet_param_len);
 
        /* Else */
        acpigen_write_else();
 
        acpigen_dptc_call_alib("DEFB", default_param, default_param_len);
 
        acpigen_pop_len(); /* Else */
 
        acpigen_pop_len(); /* Method DPTC */
        acpigen_pop_len(); /* Scope \_SB */
}