/* * This file is part of the coreboot project. * * Copyright 2014 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include <boot/coreboot_tables.h> #include <console/console.h> #include <ec/google/chromeec/ec.h> #include <ec/google/chromeec/ec_commands.h> #include <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 = GPIO(R1); gpios->gpios[count].polarity = ACTIVE_LOW; gpios->gpios[count].value = gpio_get(GPIO(R1)); strncpy((char *)gpios->gpios[count].name, "write protect", GPIO_MAX_NAME_LENGTH); count++; /* Recovery: active high */ 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 = GPIO(R4); gpios->gpios[count].polarity = ACTIVE_HIGH; gpios->gpios[count].value = -1; strncpy((char *)gpios->gpios[count].name, "lid", GPIO_MAX_NAME_LENGTH); count++; /* Power: active low */ gpios->gpios[count].port = GPIO(Q0); gpios->gpios[count].polarity = ACTIVE_LOW; gpios->gpios[count].value = -1; strncpy((char *)gpios->gpios[count].name, "power", GPIO_MAX_NAME_LENGTH); count++; /* Developer: virtual GPIO active high */ gpios->gpios[count].port = -1; gpios->gpios[count].polarity = ACTIVE_HIGH; gpios->gpios[count].value = get_developer_mode_switch(); strncpy((char *)gpios->gpios[count].name, "developer", GPIO_MAX_NAME_LENGTH); count++; /* Reset: active low (output) */ gpios->gpios[count].port = GPIO(I5); gpios->gpios[count].polarity = ACTIVE_LOW; gpios->gpios[count].value = -1; strncpy((char *)gpios->gpios[count].name, "reset", 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_developer_mode_switch(void) { return 0; } int get_recovery_mode_switch(void) { uint32_t ec_events; 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(GPIO(R1)); }