src/mainboard/intel/kunimitsu/smihandler.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <console/console.h>
   4 #include <cpu/x86/smm.h>
   5 #include <ec/google/chromeec/smm.h>
   6 #include <soc/iomap.h>
   7 #include <soc/nvs.h>
   8 #include <soc/pm.h>
   9 #include <intelblocks/smihandler.h>
  10 #include "ec.h"
  11 #include "gpio.h"
  12
  13 int mainboard_io_trap_handler(int smif)
  14 {
  15         switch (smif) {
  16         case 0x99:
  17                 printk(BIOS_DEBUG, "Sample\n");
  18                 gnvs->smif = 0;
  19                 break;
  20         default:
  21                 return 0;
  22         }
  23
  24         /* On success, the IO Trap Handler returns 0
  25          * On failure, the IO Trap Handler returns a value != 0
  26          *
  27          * For now, we force the return value to 0 and log all traps to
  28          * see what's going on.
  29          */
  30         return 1;
  31 }
  32
  33 void mainboard_smi_gpi_handler(const struct gpi_status *sts)
  34 {
  35         if (gpi_status_get(sts, EC_SMI_GPI))
  36                 chromeec_smi_process_events();
  37 }
  38
  39 void mainboard_smi_sleep(u8 slp_typ)
  40 {
  41         if (CONFIG(EC_GOOGLE_CHROMEEC))
  42                 chromeec_smi_sleep(slp_typ, MAINBOARD_EC_S3_WAKE_EVENTS,
  43                                         MAINBOARD_EC_S5_WAKE_EVENTS);
  44 }
  45
  46 int mainboard_smi_apmc(u8 apmc)
  47 {
  48         if (CONFIG(EC_GOOGLE_CHROMEEC))
  49                 chromeec_smi_apmc(apmc, MAINBOARD_EC_SCI_EVENTS,
  50                                         MAINBOARD_EC_SMI_EVENTS);
  51         return 0;
  52 }