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/* SPDX-License-Identifier: GPL-2.0-only */
#include <console/console.h>
#include <bootmode.h>
#include <boot/coreboot_tables.h>
#include <device/device.h>
#include <southbridge/intel/bd82x6x/pch.h>
#include <southbridge/intel/common/gpio.h>
#include <ec/quanta/ene_kb3940q/ec.h>
#include <vendorcode/google/chromeos/chromeos.h>
#include "ec.h"
#define WP_GPIO 6
#define DEVMODE_GPIO 54
#define FORCE_RECOVERY_MODE 0
void fill_lb_gpios(struct lb_gpios *gpios)
{
struct lb_gpio chromeos_gpios[] = {
/* lid switch value from EC */
{-1, ACTIVE_HIGH, get_lid_switch(), "lid"},
/* Power Button - Hardcode Low as power button may still be
* pressed when read here.*/
{-1, ACTIVE_HIGH, 0, "power"},
/* Was VGA Option ROM loaded? */
/* -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(WP_GPIO);
}
int get_lid_switch(void)
{
return (ec_mem_read(EC_HW_GPI_STATUS) >> EC_GPI_LID_STAT_BIT) & 1;
}
int get_recovery_mode_switch(void)
{
int ec_rec_mode = 0;
if (FORCE_RECOVERY_MODE) {
printk(BIOS_DEBUG, "FORCING RECOVERY MODE.\n");
return 1;
}
if (ENV_RAMSTAGE) {
if (ec_mem_read(EC_CODE_STATE) == EC_COS_EC_RO)
ec_rec_mode = 1;
printk(BIOS_DEBUG, "RECOVERY MODE FROM EC: %x\n", ec_rec_mode);
}
return ec_rec_mode;
}
static const struct cros_gpio cros_gpios[] = {
CROS_GPIO_REC_AH(CROS_GPIO_VIRTUAL, CROS_GPIO_DEVICE_NAME),
CROS_GPIO_WP_AL(WP_GPIO, CROS_GPIO_DEVICE_NAME),
};
void mainboard_chromeos_acpi_generate(void)
{
// TODO: MLR
// The firmware read/write status is a "virtual" switch and
// will be handled elsewhere. Until then hard-code to
// read/write instead of read-only for developer mode.
if (CONFIG(CHROMEOS_NVS))
chromeos_set_ecfw_rw();
chromeos_acpi_gpio_generate(cros_gpios, ARRAY_SIZE(cros_gpios));
}
int get_ec_is_trusted(void)
{
/* Do not have a Chrome EC involved in entering recovery mode;
Always return trusted. */
return 1;
}
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