/* * This file is part of the coreboot project. * * Copyright (C) 2013 Google Inc. * Copyright (C) 2016 Intel Corporation. * * 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 <device/device.h> #include <device/pci.h> #include <gpio.h> #include <soc/gpio.h> #include <ec/google/chromeec/ec.h> #include <vendorcode/google/chromeos/chromeos.h> #include "gpio.h" #include "ec.h" #if ENV_RAMSTAGE #include <boot/coreboot_tables.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_lid_switch(), "lid"}, {-1, ACTIVE_HIGH, 0, "power"}, {-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"}, }; lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios)); } #endif /* ENV_RAMSTAGE */ int get_lid_switch(void) { if (CONFIG(EC_GOOGLE_CHROMEEC)) /* Read lid switch state from the EC. */ return !!(google_chromeec_get_switches() & EC_SWITCH_LID_OPEN); /* Lid always open */ return 1; } int get_recovery_mode_switch(void) { if (CONFIG(EC_GOOGLE_CHROMEEC)) { /* Check for dedicated recovery switch first. */ if (google_chromeec_get_switches() & EC_SWITCH_DEDICATED_RECOVERY) return 1; /* Otherwise 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)); } return 0; } int clear_recovery_mode_switch(void) { if (CONFIG(EC_GOOGLE_CHROMEEC)) /* Clear keyboard recovery event. */ return google_chromeec_clear_events_b( EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY)); return 0; } int get_write_protect_state(void) { /* No write protect */ return 0; } static const struct cros_gpio cros_gpios[] = { CROS_GPIO_REC_AL(CROS_GPIO_VIRTUAL, CROS_GPIO_DEVICE_NAME), CROS_GPIO_WP_AH(CROS_GPIO_VIRTUAL, CROS_GPIO_DEVICE_NAME), }; void mainboard_chromeos_acpi_generate(void) { chromeos_acpi_gpio_generate(cros_gpios, ARRAY_SIZE(cros_gpios)); }