src/mainboard/google/rikku/smihandler.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2008-2009 coresystems GmbH
   5  * Copyright 2014 Google Inc.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; version 2 of the License.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  */
  16
  17 #include <arch/acpi.h>
  18 #include <arch/io.h>
  19 #include <console/console.h>
  20 #include <cpu/x86/smm.h>
  21 #include <soc/pm.h>
  22 #include <soc/smm.h>
  23 #include <elog.h>
  24 #include <ec/google/chromeec/ec.h>
  25 #include <soc/gpio.h>
  26 #include <soc/iomap.h>
  27 #include <soc/nvs.h>
  28 #include <soc/pm.h>
  29 #include <soc/smm.h>
  30 #include <superio/ite/it8772f/it8772f.h>
  31 #include "onboard.h"
  32
  33 int mainboard_io_trap_handler(int smif)
  34 {
  35         switch (smif) {
  36         case 0x99:
  37                 printk(BIOS_DEBUG, "Sample\n");
  38                 smm_get_gnvs()->smif = 0;
  39                 break;
  40         default:
  41                 return 0;
  42         }
  43
  44         /* On success, the IO Trap Handler returns 0
  45          * On failure, the IO Trap Handler returns a value != 0
  46          *
  47          * For now, we force the return value to 0 and log all traps to
  48          * see what's going on.
  49          */
  50         return 1;
  51 }
  52
  53 /* gpi_sts is GPIO 47:32 */
  54 void mainboard_smi_gpi(u32 gpi_sts)
  55 {
  56 }
  57
  58 void mainboard_smi_sleep(u8 slp_typ)
  59 {
  60         /* Disable USB charging if required */
  61         switch (slp_typ) {
  62         case ACPI_S3:
  63                 it8772f_gpio_led(IT8772F_GPIO_DEV, 1 /* set */, 0x01 /* select */,
  64                         0x01 /* polarity */, 0x01 /* 1=pullup */,
  65                         0x01 /* output */, 0x00, /* 0=Alternate function */
  66                         SIO_GPIO_BLINK_GPIO10, IT8772F_GPIO_BLINK_FREQUENCY_1_HZ);
  67                 break;
  68         case ACPI_S5:
  69                 it8772f_gpio_led(IT8772F_GPIO_DEV, 1 /* set */, 0x01 /* select */,
  70                         0x00 /* polarity: non-inverting */, 0x00 /* 0=pulldown */,
  71                         0x01 /* output */, 0x01 /* 1=Simple IO function */,
  72                         SIO_GPIO_BLINK_GPIO10, IT8772F_GPIO_BLINK_FREQUENCY_1_HZ);
  73                 break;
  74         default:
  75                 break;
  76         }
  77         return;
  78 }
  79
  80 int mainboard_smi_apmc(u8 apmc)
  81 {
  82         switch (apmc) {
  83         case APM_CNT_ACPI_ENABLE:
  84                 break;
  85         case APM_CNT_ACPI_DISABLE:
  86                 break;
  87         }
  88         return 0;
  89 }