src/mainboard/samsung/stumpy/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 #include <southbridge/intel/bd82x6x/pch.h>
   7 #include <southbridge/intel/bd82x6x/me.h>
   8 #include <northbridge/intel/sandybridge/sandybridge.h>
   9
  10 /* Include for SIO helper functions */
  11 #include <superio/ite/it8772f/it8772f.h>
  12 #define SUPERIO_DEV PNP_DEV(0x2e, 0)
  13
  14 /*
  15  * Change LED_POWER# (SIO GPIO 45) state based on sleep type.
  16 */
  17 void mainboard_smi_sleep(u8 slp_typ)
  18 {
  19         printk(BIOS_DEBUG, "SMI: sleep S%d\n", slp_typ);
  20         switch (slp_typ) {
  21         case ACPI_S3:
  22         case ACPI_S4:
  23                 it8772f_gpio_led(SUPERIO_DEV, 4 /* set */, (0x1 << 5) /* select */,
  24                         (0x1 << 5) /* polarity */, (0x1 << 5) /* 1 = pullup */,
  25                         (0x1 << 5) /* output */, 0x00, /* 0 = Alternate function */
  26                         SIO_GPIO_BLINK_GPIO45, IT8772F_GPIO_BLINK_FREQUENCY_1_HZ);
  27                 break;
  28
  29         case ACPI_S5:
  30                 it8772f_gpio_led(SUPERIO_DEV, 4 /* set */, (0x1 << 5) /* select */,
  31                         0x00 /* polarity: non-inverting */, 0x00 /* 0 = pulldown */,
  32                         (0x1 << 5) /* output */, (0x1 << 5) /* 1 = Simple IO function */,
  33                         SIO_GPIO_BLINK_GPIO45, IT8772F_GPIO_BLINK_FREQUENCY_1_HZ);
  34                 break;
  35         default:
  36                 break;
  37         }
  38 }