719b7880b6
The power button signal is driven from the silego part.
It's active high when the button is pressed.
BUG=None
BRANCH=None
TEST=Booted with power button pressed. vboot saw the press and
requested a shut down.
Change-Id: Ifff1bd8d4340849e0c218812fd401b61c90c5743
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: b6bd7c0de38e1078b85f1671493c6d2948d43149
Original-Change-Id: If25ebce28c1ab5a363f3b4b5ab9fc24baebad56a
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/214847
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9028
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright 2014 Google Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <boot/coreboot_tables.h>
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#include <console/console.h>
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#include <ec/google/chromeec/ec.h>
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#include <ec/google/chromeec/ec_commands.h>
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#include <string.h>
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#include <vendorcode/google/chromeos/chromeos.h>
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#include "gpio.h"
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void fill_lb_gpios(struct lb_gpios *gpios)
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{
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int count = 0;
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/* Write Protect: active low */
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gpios->gpios[count].port = WRITE_PROTECT_L_INDEX;
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gpios->gpios[count].polarity = ACTIVE_LOW;
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gpios->gpios[count].value = gpio_get_in_value(WRITE_PROTECT_L);
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strncpy((char *)gpios->gpios[count].name, "write protect",
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GPIO_MAX_NAME_LENGTH);
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count++;
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/* Recovery: active high */
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gpios->gpios[count].port = -1;
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gpios->gpios[count].polarity = ACTIVE_HIGH;
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gpios->gpios[count].value = get_recovery_mode_switch();
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strncpy((char *)gpios->gpios[count].name, "recovery",
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GPIO_MAX_NAME_LENGTH);
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count++;
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/* TODO(adurbin): add lid switch */
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/* Power: active low */
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gpios->gpios[count].port = POWER_BUTTON_INDEX,
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gpios->gpios[count].polarity = ACTIVE_HIGH;
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gpios->gpios[count].value = gpio_get_in_value(POWER_BUTTON);
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strncpy((char *)gpios->gpios[count].name, "power",
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GPIO_MAX_NAME_LENGTH);
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count++;
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/* Developer: virtual GPIO active high */
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gpios->gpios[count].port = -1;
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gpios->gpios[count].polarity = ACTIVE_HIGH;
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gpios->gpios[count].value = get_developer_mode_switch();
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strncpy((char *)gpios->gpios[count].name, "developer",
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GPIO_MAX_NAME_LENGTH);
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count++;
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gpios->size = sizeof(*gpios) + (count * sizeof(struct lb_gpio));
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gpios->count = count;
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printk(BIOS_ERR, "Added %d GPIOS size %d\n", count, gpios->size);
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}
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int get_developer_mode_switch(void)
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{
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return 0;
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}
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int get_recovery_mode_switch(void)
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{
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uint32_t ec_events;
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ec_events = google_chromeec_get_events_b();
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return !!(ec_events &
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EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY));
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}
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int get_write_protect_state(void)
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{
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return !gpio_get_in_value(WRITE_PROTECT_L);
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}
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