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/*
* This file is part of the coreboot project.
*
* Copyright 2013 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 <boot/coreboot_tables.h>
#include <bootmode.h>
#include <console/console.h>
#include <ec/google/chromeec/ec.h>
#include <ec/google/chromeec/ec_commands.h>
#include <soc/cpu.h>
#include <soc/gpio.h>
#include <string.h>
#include <vendorcode/google/chromeos/chromeos.h>
void fill_lb_gpios(struct lb_gpios *gpios)
{
struct lb_gpio chromeos_gpios[] = {
/* Write Protect: active low (WP_GPIO) */
{EXYNOS5_GPX3, ACTIVE_LOW, !get_write_protect_state(),
"write protect"},
/* Recovery: active low */
{-1, ACTIVE_HIGH, get_recovery_mode_switch(), "recovery"},
/* Lid: active high (LID_GPIO) */
{EXYNOS5_GPX3, ACTIVE_HIGH, gpio_get_value(GPIO_X34), "lid"},
/* Power: virtual GPIO active low (POWER_GPIO) */
{EXYNOS5_GPX1, ACTIVE_LOW, gpio_get_value(GPIO_X12), "power"},
};
lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
}
int get_recovery_mode_switch(void)
{
uint64_t ec_events;
/* The GPIO is active low. */
if (!gpio_get_value(GPIO_X07)) // RECMODE_GPIO
return 1;
ec_events = google_chromeec_get_events_b();
return !!(ec_events &
EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY));
}
int get_write_protect_state(void)
{
return !gpio_get_value(GPIO_X30);
}
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