src/mainboard/google/rambi/smihandler.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <acpi/acpi.h>
   4 #include <console/console.h>
   5 #include <cpu/x86/smm.h>
   6
   7 #include <ec/google/chromeec/smm.h>
   8 #include "ec.h"
   9
  10 #include <soc/pm.h>
  11
  12 /* The wake gpio is SUS_GPIO[0]. */
  13 #define WAKE_GPIO_EN SUS_GPIO_EN0
  14
  15 /* The entire 32-bit ALT_GPIO_SMI register is passed as a parameter. Note, that
  16  * this includes the enable bits in the lower 16 bits. */
  17 void mainboard_smi_gpi(uint32_t alt_gpio_smi)
  18 {
  19         if (alt_gpio_smi & (1 << EC_SMI_GPI))
  20                 chromeec_smi_process_events();
  21 }
  22
  23 void mainboard_smi_sleep(uint8_t slp_typ)
  24 {
  25         /* Disable USB charging if required */
  26         chromeec_set_usb_charge_mode(slp_typ);
  27
  28         switch (slp_typ) {
  29         case ACPI_S3:
  30                 /* Enable wake pin in GPE block. */
  31                 enable_gpe(WAKE_GPIO_EN);
  32                 break;
  33         }
  34
  35         chromeec_smi_sleep(slp_typ, MAINBOARD_EC_S3_WAKE_EVENTS, MAINBOARD_EC_S5_WAKE_EVENTS);
  36 }
  37
  38 int mainboard_smi_apmc(uint8_t apmc)
  39 {
  40         chromeec_smi_apmc(apmc, MAINBOARD_EC_SCI_EVENTS, MAINBOARD_EC_SMI_EVENTS);
  41         return 0;
  42 }