chromeos.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <boardid.h>
#include <bootmode.h>
#include <boot/coreboot_tables.h>
#include <gpio.h>
 
#include "gpio.h"
 
void setup_chromeos_gpios(void)
{
        gpio_input(WRITE_PROTECT);
        gpio_input_pullup(EC_IN_RW);
        gpio_input_pullup(EC_IRQ);
        gpio_input(LID);
        gpio_input_pullup(POWER_BUTTON);
        if (board_id() + CONFIG_BOARD_ID_ADJUSTMENT < 5)
                gpio_output(EC_SUSPEND_L, 1);
}
 
void fill_lb_gpios(struct lb_gpios *gpios)
{
        struct lb_gpio chromeos_gpios[] = {
                {LID.id, ACTIVE_HIGH, -1, "lid"},
                {POWER_BUTTON.id, ACTIVE_HIGH, -1, "power"},
                {EC_IN_RW.id, ACTIVE_HIGH, -1, "EC in RW"},
                {EC_IRQ.id, ACTIVE_LOW, -1, "EC interrupt"},
                {CR50_IRQ.id, ACTIVE_HIGH, -1, "TPM interrupt"},
        };
        lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
}
 
int get_write_protect_state(void)
{
        return !gpio_get(WRITE_PROTECT);
}
 
int get_ec_is_trusted(void)
{
        /* EC is trusted if not in RW. */
        return !gpio_get(EC_IN_RW);
}