src/mainboard/intel/kblrvp/chromeos.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <bootmode.h>
   4 #include <boot/coreboot_tables.h>
   5 #include <device/device.h>
   6 #include <gpio.h>
   7 #include <ec/google/chromeec/ec.h>
   8 #include <types.h>
   9 #include <vendorcode/google/chromeos/chromeos.h>
  10
  11 #include "gpio.h"
  12 #include "ec.h"
  13
  14 void fill_lb_gpios(struct lb_gpios *gpios)
  15 {
  16         struct lb_gpio chromeos_gpios[] = {
  17                 {-1, ACTIVE_HIGH, get_lid_switch(), "lid"},
  18                 {-1, ACTIVE_HIGH, 0, "power"},
  19                 {-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"},
  20         };
  21         lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
  22 }
  23
  24 int get_lid_switch(void)
  25 {
  26         if (CONFIG(EC_GOOGLE_CHROMEEC))
  27                 /* Read lid switch state from the EC. */
  28                 return !!(google_chromeec_get_switches() & EC_SWITCH_LID_OPEN);
  29
  30         /* Lid always open */
  31         return 1;
  32 }
  33
  34 int get_recovery_mode_switch(void)
  35 {
  36         if (CONFIG(EC_GOOGLE_CHROMEEC)) {
  37                 /* Check for dedicated recovery switch first. */
  38                 if (google_chromeec_get_switches() &
  39                         EC_SWITCH_DEDICATED_RECOVERY)
  40                 return 1;
  41
  42                 /* Otherwise check if the EC has posted the keyboard recovery
  43                  * event. */
  44                 return !!(google_chromeec_get_events_b() &
  45                           EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY));
  46         }
  47
  48         return 0;
  49 }
  50
  51 int get_write_protect_state(void)
  52 {
  53         /* No write protect */
  54         return 0;
  55 }
  56
  57 static const struct cros_gpio cros_gpios[] = {
  58         CROS_GPIO_REC_AL(CROS_GPIO_VIRTUAL, CROS_GPIO_DEVICE_NAME),
  59         CROS_GPIO_WP_AH(CROS_GPIO_VIRTUAL, CROS_GPIO_DEVICE_NAME),
  60 };
  61 DECLARE_CROS_GPIOS(cros_gpios);
  62
  63 int get_ec_is_trusted(void)
  64 {
  65         /* Do not have a Chrome EC involved in entering recovery mode;
  66            Always return trusted. */
  67         return 1;
  68 }