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/*
* This file is part of the coreboot project.
*
* Copyright 2016 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 <baseboard/variants.h>
#include <boot/coreboot_tables.h>
#include <ec/google/chromeec/ec.h>
#include <gpio.h>
#include <vendorcode/google/chromeos/chromeos.h>
#include <soc/gpio.h>
#include <variant/gpio.h>
void fill_lb_gpios(struct lb_gpios *gpios)
{
struct lb_gpio chromeos_gpios[] = {
{-1, ACTIVE_HIGH, get_write_protect_state(), "write protect"},
{-1, ACTIVE_HIGH, get_recovery_mode_switch(), "recovery"},
{-1, ACTIVE_HIGH, get_developer_mode_switch(), "developer"},
{-1, ACTIVE_HIGH, get_lid_switch(), "lid"},
{-1, ACTIVE_HIGH, 0, "power"},
{-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"},
{GPIO_EC_IN_RW, ACTIVE_HIGH,
gpio_get(GPIO_EC_IN_RW), "EC in RW"},
};
lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
}
int get_lid_switch(void)
{
/* Read lid switch state from the EC. */
return !!(google_chromeec_get_switches() & EC_SWITCH_LID_OPEN);
}
int get_developer_mode_switch(void)
{
/* No physical developer mode switch. It's virtual. */
return 0;
}
int get_recovery_mode_switch(void)
{
/* Check if the EC has posted the keyboard recovery event. */
return !!(google_chromeec_get_events_b() &
EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY));
}
int get_recovery_mode_retrain_switch(void)
{
/*
* Check if the EC has posted the keyboard recovery event with memory
* retrain.
*/
return !!(google_chromeec_get_events_b() &
EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY_HW_REINIT));
}
int clear_recovery_mode_switch(void)
{
/* Clear all host event bits requesting recovery mode. */
return google_chromeec_clear_events_b(
EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY) |
EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY_HW_REINIT));
}
int get_write_protect_state(void)
{
/* Read PCH_WP GPIO. */
return gpio_get(GPIO_PCH_WP);
}
void mainboard_chromeos_acpi_generate(void)
{
const struct cros_gpio *gpios;
size_t num;
gpios = variant_cros_gpios(&num);
chromeos_acpi_gpio_generate(gpios, num);
}
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