ad73c4521b
Proto 0,1,2 boards had pwr btn active high. Proto 3 onwards boards will have pwr btn active low. Thus, select power btn polarity based on board id. BUG=chrome-os-partner:33545 BRANCH=None TEST=Compiles successfully and boots to kernel prompt on ryu proto 1. Change-Id: I9b06b10358b91d40cfdb418ef8cf4da1ae833121 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 7100a42b53a09ed4cb298f88d6f804f46fecacb5 Original-Change-Id: Icdf51b9324385de00f5787e81018518c5397215f Original-Signed-off-by: Furquan Shaikh <furquan@google.com> Original-Reviewed-on: https://chromium-review.googlesource.com/229011 Original-Tested-by: Furquan Shaikh <furquan@chromium.org> Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Original-Commit-Queue: Furquan Shaikh <furquan@chromium.org> Reviewed-on: http://review.coreboot.org/9418 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
99 lines
2.8 KiB
C
99 lines
2.8 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 <boardid.h>
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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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static inline uint32_t get_pwr_btn_polarity(void)
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{
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if (board_id() < BOARD_ID_PROTO_3)
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return ACTIVE_HIGH;
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return ACTIVE_LOW;
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}
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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(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 / high depending on board id */
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gpios->gpios[count].port = POWER_BUTTON_INDEX;
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gpios->gpios[count].polarity = get_pwr_btn_polarity();
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gpios->gpios[count].value = gpio_get(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(WRITE_PROTECT_L);
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}
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