a73b93157f
It encourages users from writing to the FSF without giving an address. Linux also prefers to drop that and their checkpatch.pl (that we imported) looks out for that. This is the result of util/scripts/no-fsf-addresses.sh with no further editing. Change-Id: Ie96faea295fe001911d77dbc51e9a6789558fbd6 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/11888 Tested-by: build bot (Jenkins) Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
122 lines
3.7 KiB
C
122 lines
3.7 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2011 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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#include <string.h>
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#include <bootmode.h>
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#include <arch/io.h>
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#include <device/device.h>
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#include <device/pci.h>
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#include <southbridge/intel/bd82x6x/pch.h>
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#include "ec.h"
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#include <ec/google/chromeec/ec.h>
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#ifndef __PRE_RAM__
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#include <boot/coreboot_tables.h>
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#define GPIO_COUNT 6
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void fill_lb_gpios(struct lb_gpios *gpios)
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{
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gpios->size = sizeof(*gpios) + (GPIO_COUNT * sizeof(struct lb_gpio));
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gpios->count = GPIO_COUNT;
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/* Write Protect: GPIO57 = PCH_SPI_WP_D */
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gpios->gpios[0].port = 57;
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gpios->gpios[0].polarity = ACTIVE_HIGH;
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gpios->gpios[0].value = get_write_protect_state();
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strncpy((char *)gpios->gpios[0].name,"write protect",
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GPIO_MAX_NAME_LENGTH);
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/* Recovery: the "switch" comes from the EC */
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gpios->gpios[1].port = -1; /* Indicate that this is a pseudo GPIO */
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gpios->gpios[1].polarity = ACTIVE_HIGH;
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gpios->gpios[1].value = get_recovery_mode_switch();
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strncpy((char *)gpios->gpios[1].name,"recovery", GPIO_MAX_NAME_LENGTH);
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/* Lid: the "switch" comes from the EC */
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gpios->gpios[2].port = -1;
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gpios->gpios[2].polarity = ACTIVE_HIGH;
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gpios->gpios[2].value = get_lid_switch();
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strncpy((char *)gpios->gpios[2].name,"lid", GPIO_MAX_NAME_LENGTH);
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/* Power Button: hard-coded as not pressed; we'll detect later presses
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* via SMI. */
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gpios->gpios[3].port = -1;
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gpios->gpios[3].polarity = ACTIVE_HIGH;
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gpios->gpios[3].value = 0;
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strncpy((char *)gpios->gpios[3].name,"power", GPIO_MAX_NAME_LENGTH);
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/* Developer: a tricky case on Link, there is no switch */
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gpios->gpios[4].port = -1; /* Indicate that this is a pseudo GPIO */
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gpios->gpios[4].polarity = ACTIVE_HIGH;
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gpios->gpios[4].value = get_developer_mode_switch();
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strncpy((char *)gpios->gpios[4].name,"developer", GPIO_MAX_NAME_LENGTH);
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/* Did we load the VGA Option ROM? */
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gpios->gpios[5].port = -1; /* Indicate that this is a pseudo GPIO */
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gpios->gpios[5].polarity = ACTIVE_HIGH;
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gpios->gpios[5].value = gfx_get_init_done();
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strncpy((char *)gpios->gpios[5].name,"oprom", GPIO_MAX_NAME_LENGTH);
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}
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#endif
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int get_write_protect_state(void)
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{
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device_t dev;
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#ifdef __PRE_RAM__
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dev = PCI_DEV(0, 0x1f, 0);
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#else
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dev = dev_find_slot(0, PCI_DEVFN(0x1f, 0));
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#endif
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u16 gpio_base = pci_read_config32(dev, GPIOBASE) & 0xfffe;
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//u16 gen_pmcon_1 = pci_read_config32(dev, GEN_PMCON_1);
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if (!gpio_base)
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return -1;
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u32 gp_lvl2 = inl(gpio_base + 0x38);
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return (gp_lvl2 >> (57 - 32)) & 1;
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}
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int get_lid_switch(void)
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{
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u8 ec_switches = inb(EC_LPC_ADDR_MEMMAP + EC_MEMMAP_SWITCHES);
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return !!(ec_switches & EC_SWITCH_LID_OPEN);
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}
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/* The dev-switch is virtual on Link (and so handled elsewhere). */
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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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/* There are actually two recovery switches. One is the magic keyboard chord,
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* the other is driven by Servo. */
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int get_recovery_mode_switch(void)
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{
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u8 ec_switches = inb(EC_LPC_ADDR_MEMMAP + EC_MEMMAP_SWITCHES);
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u32 ec_events;
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/* If a switch is set, we don't need to look at events. */
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if (ec_switches & (EC_SWITCH_DEDICATED_RECOVERY))
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return 1;
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/* Else check if the EC has posted the keyboard recovery event. */
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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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