coreboot
coreboot is an Open Source project aimed at replacing the proprietary BIOS found in most computers.
chromeos.c
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1 /* SPDX-License-Identifier: GPL-2.0-only */
2 
3 #include <bootmode.h>
4 #include <boot/coreboot_tables.h>
5 #include <gpio.h>
6 #include <soc/gpio.h>
7 #include <types.h>
8 
9 #include <variant/gpio.h>
10 
11 void fill_lb_gpios(struct lb_gpios *gpios)
12 {
13  struct lb_gpio chromeos_gpios[] = {
14  {-1, ACTIVE_HIGH, get_lid_switch(), "lid"},
15  {-1, ACTIVE_HIGH, 0, "power"},
16  {-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"},
18  "EC in RW"},
19 #ifdef EC_SYNC_GPIO
20  {EC_SYNC_GPIO, ACTIVE_LOW, gpio_get(EC_SYNC_GPIO), "EC sync gpio"},
21 #endif
22  };
23  lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
24 }
25 
27 {
28  /* Read PCH_WP GPIO. */
29  return gpio_get(GPIO_PCH_WP);
30 }
31 
33 {
34  /* EC is trusted if not in RW. */
35  return !gpio_get(GPIO_EC_IN_RW);
36 }
void fill_lb_gpios(struct lb_gpios *gpios)
Definition: chromeos.c:9
int get_write_protect_state(void)
Only used if CONFIG(CHROMEOS) is set.
Definition: chromeos.c:15
int gfx_get_init_done(void)
Definition: bootmode.c:10
#define ARRAY_SIZE(a)
Definition: helpers.h:12
int get_ec_is_trusted(void)
Definition: chromeos.c:25
int get_lid_switch(void)
Definition: chromeos.c:37
#define ACTIVE_HIGH
Definition: chromeos.c:18
#define ACTIVE_LOW
Definition: chromeos.c:17
void lb_add_gpios(struct lb_gpios *gpios, const struct lb_gpio *gpio_table, size_t count)
int gpio_get(gpio_t gpio)
Definition: gpio.c:166
#define GPIO_PCH_WP
Definition: gpio.h:14
#define EC_SYNC_GPIO
Definition: gpio.h:28