/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2012 The Chromium OS Authors. All rights reserved.
 *
 * 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 <string.h>
#include <bootmode.h>
#include <device/pci_ops.h>
#include <device/device.h>
#include <device/pci.h>
#include <southbridge/intel/bd82x6x/pch.h>
#include <southbridge/intel/common/gpio.h>
#include <vendorcode/google/chromeos/chromeos.h>

#if ENV_RAMSTAGE
#include <boot/coreboot_tables.h>

void fill_lb_gpios(struct lb_gpios *gpios)
{
	struct lb_gpio chromeos_gpios[] = {
		/* Write Protect: GPIO48 */
		{48, ACTIVE_LOW, !get_write_protect_state(), "write protect"},

		/* Recovery: GPIO22 */
		{22, ACTIVE_LOW, !get_recovery_mode_switch(), "presence"},

		/* Hard code the lid switch GPIO to open. */
		{-1, ACTIVE_HIGH, 1, "lid"},

		/* Power Button */
		{-1, ACTIVE_HIGH, 0, "power"},

		/* Did we load the VGA option ROM? */
		{-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"},
	};
	lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
}
#endif

int get_recovery_mode_switch(void)
{
	/* Recovery: GPIO22, active low */
	return !get_gpio(22);
}

int get_write_protect_state(void)
{
	/* Write protect is active low, so invert it here */
	return !get_gpio(48);
}

static const struct cros_gpio cros_gpios[] = {
	CROS_GPIO_REC_AL(22, CROS_GPIO_DEVICE_NAME),
	CROS_GPIO_WP_AL(48, CROS_GPIO_DEVICE_NAME),
};

void mainboard_chromeos_acpi_generate(void)
{
	chromeos_acpi_gpio_generate(cros_gpios, ARRAY_SIZE(cros_gpios));
}