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/*
* This file is part of the coreboot project.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <arch/acpi.h>
#include <arch/acpigen.h>
#include <string.h>
#include "i915.h"
void
drivers_intel_gma_displays_ssdt_generate(const struct i915_gpu_controller_info *conf)
{
size_t i;
const char *names[] = { "UNK", "VGA", "TV", "DVI", "LCD" };
int counters[ARRAY_SIZE(names)];
memset(counters, 0, sizeof(counters));
acpigen_write_scope("\\_SB.PCI0.GFX0");
/*
Method (_DOD, 0)
{
Return (Package() {
0x5a5a5a5a,
0x5a5a5a5a,
0x5a5a5a5a
})
}
*/
acpigen_write_method("_DOD", 0);
acpigen_emit_byte(0xa4); /* ReturnOp. */
acpigen_write_package(conf->ndid);
for (i = 0; i < conf->ndid; i++) {
acpigen_write_dword (conf->did[i] | 0x80010000);
}
acpigen_pop_len(); /* End Package. */
acpigen_pop_len(); /* End Method. */
for (i = 0; i < conf->ndid; i++) {
char name[10];
char *ptr;
int kind;
kind = (conf->did[i] >> 8) & 0xf;
if (kind >= ARRAY_SIZE(names)) {
kind = 0;
}
strcpy(name, names[kind]);
for (ptr = name; *ptr; ptr++);
*ptr++ = counters[kind] + '0';
*ptr++ = '\0';
counters[kind]++;
acpigen_write_device(name);
/* Name (_ADR, 0x0410) */
acpigen_write_name_dword("_ADR", conf->did[i] & 0xffff);
/* ACPI brightness for LCD. */
if (kind == 4) {
/*
Method (_BCL, 0, NotSerialized)
{
Return (^^XBCL())
}
*/
acpigen_write_method("_BCL", 0);
acpigen_emit_byte(0xa4); /* ReturnOp. */
acpigen_emit_namestring("^^XBCL");
acpigen_pop_len();
/*
Method (_BCM, 1, NotSerialized)
{
^^XBCM(Arg0)
}
*/
acpigen_write_method("_BCM", 1);
acpigen_emit_namestring("^^XBCM");
acpigen_emit_byte(0x68); /* Arg0Op. */
acpigen_pop_len();
/*
Method (_BQC, 0, NotSerialized)
{
Return (^^XBQC())
}
*/
acpigen_write_method("_BQC", 0);
acpigen_emit_byte(0xa4); /* ReturnOp. */
acpigen_emit_namestring("^^XBQC");
acpigen_pop_len();
}
/*
Method(_DCS, 0)
{
Return (^^XDCS(<device number>))
}
*/
acpigen_write_method("_DCS", 0);
acpigen_emit_byte(0xa4); /* ReturnOp. */
acpigen_emit_namestring("^^XDCS");
acpigen_write_byte(i);
acpigen_pop_len();
/*
Method(_DGS, 0)
{
Return (^^XDGS(<device number>))
}
*/
acpigen_write_method("_DGS", 0);
acpigen_emit_byte(0xa4); /* ReturnOp. */
acpigen_emit_namestring("^^XDGS");
acpigen_write_byte(i);
acpigen_pop_len();
/*
Method(_DSS, 1)
{
^^XDSS(0x5a, Arg0)
}
*/
acpigen_write_method("_DSS", 1);
acpigen_emit_namestring("^^XDSS");
acpigen_write_byte(i);
acpigen_emit_byte(0x68); /* Arg0Op. */
acpigen_pop_len();
acpigen_pop_len();
}
acpigen_pop_len();
}
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