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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 Nico Huber <nico.h@gmx.de>
* Copyright (C) 2017-2018 Eltan B.V.
*
* 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; version 2 of the License.
*
* 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/io.h>
#include <device/device.h>
#include <superio/conf_mode.h>
#include <arch/acpigen.h>
/* Common enter/exit implementations */
void pnp_enter_conf_mode_55(struct device *dev)
{
outb(0x55, dev->path.pnp.port);
}
void pnp_enter_conf_mode_6767(struct device *dev)
{
outb(0x67, dev->path.pnp.port);
outb(0x67, dev->path.pnp.port);
}
void pnp_enter_conf_mode_7777(struct device *dev)
{
outb(0x77, dev->path.pnp.port);
outb(0x77, dev->path.pnp.port);
}
void pnp_enter_conf_mode_8787(struct device *dev)
{
outb(0x87, dev->path.pnp.port);
outb(0x87, dev->path.pnp.port);
}
void pnp_enter_conf_mode_a0a0(struct device *dev)
{
outb(0xa0, dev->path.pnp.port);
outb(0xa0, dev->path.pnp.port);
}
void pnp_enter_conf_mode_a5a5(struct device *dev)
{
outb(0xa5, dev->path.pnp.port);
outb(0xa5, dev->path.pnp.port);
}
void pnp_exit_conf_mode_aa(struct device *dev)
{
outb(0xaa, dev->path.pnp.port);
}
void pnp_enter_conf_mode_870155aa(struct device *dev)
{
outb(0x87, dev->path.pnp.port);
outb(0x01, dev->path.pnp.port);
outb(0x55, dev->path.pnp.port);
if (dev->path.pnp.port == 0x4e)
outb(0xaa, dev->path.pnp.port);
else
outb(0x55, dev->path.pnp.port);
}
void pnp_exit_conf_mode_0202(struct device *dev)
{
pnp_write_config(dev, 0x02, (1 << 1));
}
/* Functions for ACPI */
#if CONFIG(HAVE_ACPI_TABLES)
static void pnp_ssdt_enter_conf_mode_55(struct device *dev, const char *idx, const char *data)
{
acpigen_write_store();
acpigen_write_byte(0x55);
acpigen_emit_namestring(idx);
}
static void pnp_ssdt_enter_conf_mode_6767(struct device *dev, const char *idx, const char *data)
{
acpigen_write_store();
acpigen_write_byte(0x67);
acpigen_emit_namestring(idx);
acpigen_write_store();
acpigen_write_byte(0x67);
acpigen_emit_namestring(idx);
}
static void pnp_ssdt_enter_conf_mode_7777(struct device *dev, const char *idx, const char *data)
{
acpigen_write_store();
acpigen_write_byte(0x77);
acpigen_emit_namestring(idx);
acpigen_write_store();
acpigen_write_byte(0x77);
acpigen_emit_namestring(idx);
}
static void pnp_ssdt_enter_conf_mode_8787(struct device *dev, const char *idx, const char *data)
{
acpigen_write_store();
acpigen_write_byte(0x87);
acpigen_emit_namestring(idx);
acpigen_write_store();
acpigen_write_byte(0x87);
acpigen_emit_namestring(idx);
}
static void pnp_ssdt_enter_conf_mode_a0a0(struct device *dev, const char *idx, const char *data)
{
acpigen_write_store();
acpigen_write_byte(0xa0);
acpigen_emit_namestring(idx);
acpigen_write_store();
acpigen_write_byte(0xa0);
acpigen_emit_namestring(idx);
}
static void pnp_ssdt_enter_conf_mode_a5a5(struct device *dev, const char *idx, const char *data)
{
acpigen_write_store();
acpigen_write_byte(0xa5);
acpigen_emit_namestring(idx);
acpigen_write_store();
acpigen_write_byte(0xa5);
acpigen_emit_namestring(idx);
}
static void pnp_ssdt_enter_conf_mode_870155aa(struct device *dev,
const char *idx, const char *data)
{
acpigen_write_store();
acpigen_write_byte(0x87);
acpigen_emit_namestring(idx);
acpigen_write_store();
acpigen_write_byte(0x01);
acpigen_emit_namestring(idx);
acpigen_write_store();
acpigen_write_byte(0x55);
acpigen_emit_namestring(idx);
acpigen_write_store();
if (dev->path.pnp.port == 0x4e)
acpigen_write_byte(0xaa);
else
acpigen_write_byte(0x55);
acpigen_emit_namestring(idx);
}
static void pnp_ssdt_exit_conf_mode_aa(struct device *dev, const char *idx, const char *data)
{
acpigen_write_store();
acpigen_write_byte(0xaa);
acpigen_emit_namestring(idx);
}
static void pnp_ssdt_exit_conf_mode_0202(struct device *dev, const char *idx, const char *data)
{
acpigen_write_store();
acpigen_write_byte(0x02);
acpigen_emit_namestring(idx);
acpigen_write_store();
acpigen_write_byte(0x02);
acpigen_emit_namestring(data);
}
#endif
const struct pnp_mode_ops pnp_conf_mode_55_aa = {
.enter_conf_mode = pnp_enter_conf_mode_55,
.exit_conf_mode = pnp_exit_conf_mode_aa,
#if CONFIG(HAVE_ACPI_TABLES)
.ssdt_enter_conf_mode = pnp_ssdt_enter_conf_mode_55,
.ssdt_exit_conf_mode = pnp_ssdt_exit_conf_mode_aa,
#endif
};
const struct pnp_mode_ops pnp_conf_mode_6767_aa = {
.enter_conf_mode = pnp_enter_conf_mode_6767,
.exit_conf_mode = pnp_exit_conf_mode_aa,
#if CONFIG(HAVE_ACPI_TABLES)
.ssdt_enter_conf_mode = pnp_ssdt_enter_conf_mode_6767,
.ssdt_exit_conf_mode = pnp_ssdt_exit_conf_mode_aa,
#endif
};
const struct pnp_mode_ops pnp_conf_mode_7777_aa = {
.enter_conf_mode = pnp_enter_conf_mode_7777,
.exit_conf_mode = pnp_exit_conf_mode_aa,
#if CONFIG(HAVE_ACPI_TABLES)
.ssdt_enter_conf_mode = pnp_ssdt_enter_conf_mode_7777,
.ssdt_exit_conf_mode = pnp_ssdt_exit_conf_mode_aa,
#endif
};
const struct pnp_mode_ops pnp_conf_mode_8787_aa = {
.enter_conf_mode = pnp_enter_conf_mode_8787,
.exit_conf_mode = pnp_exit_conf_mode_aa,
#if CONFIG(HAVE_ACPI_TABLES)
.ssdt_enter_conf_mode = pnp_ssdt_enter_conf_mode_8787,
.ssdt_exit_conf_mode = pnp_ssdt_exit_conf_mode_aa,
#endif
};
const struct pnp_mode_ops pnp_conf_mode_a0a0_aa = {
.enter_conf_mode = pnp_enter_conf_mode_a0a0,
.exit_conf_mode = pnp_exit_conf_mode_aa,
#if CONFIG(HAVE_ACPI_TABLES)
.ssdt_enter_conf_mode = pnp_ssdt_enter_conf_mode_a0a0,
.ssdt_exit_conf_mode = pnp_ssdt_exit_conf_mode_aa,
#endif
};
const struct pnp_mode_ops pnp_conf_mode_a5a5_aa = {
.enter_conf_mode = pnp_enter_conf_mode_a5a5,
.exit_conf_mode = pnp_exit_conf_mode_aa,
#if CONFIG(HAVE_ACPI_TABLES)
.ssdt_enter_conf_mode = pnp_ssdt_enter_conf_mode_a5a5,
.ssdt_exit_conf_mode = pnp_ssdt_exit_conf_mode_aa,
#endif
};
const struct pnp_mode_ops pnp_conf_mode_870155_aa = {
.enter_conf_mode = pnp_enter_conf_mode_870155aa,
.exit_conf_mode = pnp_exit_conf_mode_0202,
#if CONFIG(HAVE_ACPI_TABLES)
.ssdt_enter_conf_mode = pnp_ssdt_enter_conf_mode_870155aa,
.ssdt_exit_conf_mode = pnp_ssdt_exit_conf_mode_0202,
#endif
};
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