src/mainboard/google/link/chromeos.c

/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2011 Google Inc.
 *
 * 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 <boot/coreboot_tables.h>
#include <southbridge/intel/bd82x6x/pch.h>
#include <southbridge/intel/common/gpio.h>
#include <vendorcode/google/chromeos/chromeos.h>

void fill_lb_gpios(struct lb_gpios *gpios)
{
	struct lb_gpio chromeos_gpios[] = {
		/* Write Protect: GPIO57 = PCH_SPI_WP_D */
		{57, ACTIVE_HIGH, get_write_protect_state(), "write protect"},

		/* Lid: the "switch" comes from the EC */
		{-1, ACTIVE_HIGH, get_lid_switch(), "lid"},

		/* Power Button: hard-coded as not pressed; we'll detect later
		 * presses via SMI. */
		{-1, ACTIVE_HIGH, 0, "power"},

		/* Did we load the VGA Option ROM? */
		/* -1 indicates that this is a pseudo GPIO */
		{-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"},
	};
	lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
}

int get_write_protect_state(void)
{
	return get_gpio(57);
}

static const struct cros_gpio cros_gpios[] = {
	CROS_GPIO_REC_AL(9, CROS_GPIO_DEVICE_NAME),
	CROS_GPIO_WP_AH(57, CROS_GPIO_DEVICE_NAME),
};

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