blob: e782986cf408b1134579ccd73b1409ab11250ad2 [file] [log] [blame]
/*
* 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)
{
int count = 0;
/* Write Protect: active low */
gpios->gpios[count].port = EXYNOS5_GPX3;
gpios->gpios[count].polarity = ACTIVE_LOW;
gpios->gpios[count].value = gpio_get_value(GPIO_X30); // WP_GPIO
strncpy((char *)gpios->gpios[count].name, "write protect",
GPIO_MAX_NAME_LENGTH);
count++;
/* Recovery: active low */
gpios->gpios[count].port = -1;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = get_recovery_mode_switch();
strncpy((char *)gpios->gpios[count].name, "recovery",
GPIO_MAX_NAME_LENGTH);
count++;
/* Lid: active high */
gpios->gpios[count].port = EXYNOS5_GPX3;
gpios->gpios[count].polarity = ACTIVE_HIGH;
gpios->gpios[count].value = gpio_get_value(GPIO_X34); // LID_GPIO
strncpy((char *)gpios->gpios[count].name, "lid", GPIO_MAX_NAME_LENGTH);
count++;
/* Power: virtual GPIO active low */
gpios->gpios[count].port = EXYNOS5_GPX1;
gpios->gpios[count].polarity = ACTIVE_LOW;
gpios->gpios[count].value =
gpio_get_value(GPIO_X12); // POWER_GPIO
strncpy((char *)gpios->gpios[count].name, "power",
GPIO_MAX_NAME_LENGTH);
count++;
gpios->size = sizeof(*gpios) + (count * sizeof(struct lb_gpio));
gpios->count = count;
printk(BIOS_ERR, "Added %d GPIOS size %d\n", count, gpios->size);
}
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);
}