src/mainboard/intel/kblrvp/chromeos.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; version 2 of the License.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #include <boot/coreboot_tables.h>
  16 #include <device/device.h>
  17 #include <gpio.h>
  18 #include <soc/gpio.h>
  19 #include <ec/google/chromeec/ec.h>
  20 #include <vendorcode/google/chromeos/chromeos.h>
  21
  22 #include "gpio.h"
  23 #include "ec.h"
  24
  25 void fill_lb_gpios(struct lb_gpios *gpios)
  26 {
  27         struct lb_gpio chromeos_gpios[] = {
  28                 {-1, ACTIVE_HIGH, get_lid_switch(), "lid"},
  29                 {-1, ACTIVE_HIGH, 0, "power"},
  30                 {-1, ACTIVE_HIGH, gfx_get_init_done(), "oprom"},
  31         };
  32         lb_add_gpios(gpios, chromeos_gpios, ARRAY_SIZE(chromeos_gpios));
  33 }
  34
  35 int get_lid_switch(void)
  36 {
  37         if (CONFIG(EC_GOOGLE_CHROMEEC))
  38                 /* Read lid switch state from the EC. */
  39                 return !!(google_chromeec_get_switches() & EC_SWITCH_LID_OPEN);
  40
  41         /* Lid always open */
  42         return 1;
  43 }
  44
  45 int get_recovery_mode_switch(void)
  46 {
  47         if (CONFIG(EC_GOOGLE_CHROMEEC)) {
  48                 /* Check for dedicated recovery switch first. */
  49                 if (google_chromeec_get_switches() &
  50                         EC_SWITCH_DEDICATED_RECOVERY)
  51                 return 1;
  52
  53                 /* Otherwise check if the EC has posted the keyboard recovery
  54                  * event. */
  55                 return !!(google_chromeec_get_events_b() &
  56                           EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY));
  57         }
  58
  59         return 0;
  60 }
  61
  62 int get_write_protect_state(void)
  63 {
  64         /* No write protect */
  65         return 0;
  66 }
  67
  68 static const struct cros_gpio cros_gpios[] = {
  69         CROS_GPIO_REC_AL(CROS_GPIO_VIRTUAL, CROS_GPIO_DEVICE_NAME),
  70         CROS_GPIO_WP_AH(CROS_GPIO_VIRTUAL, CROS_GPIO_DEVICE_NAME),
  71 };
  72
  73 void mainboard_chromeos_acpi_generate(void)
  74 {
  75         chromeos_acpi_gpio_generate(cros_gpios, ARRAY_SIZE(cros_gpios));
  76 }