smihandler.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <acpi/acpi.h>
#include <console/console.h>
#include <cpu/x86/smm.h>
#include <soc/pm.h>
#include <ec/google/chromeec/ec.h>
#include <southbridge/intel/lynxpoint/lp_gpio.h>
#include <soc/iomap.h>
#include <soc/nvs.h>
#include "onboard.h"
 
int mainboard_io_trap_handler(int smif)
{
        switch (smif) {
        case 0x99:
                printk(BIOS_DEBUG, "Sample\n");
                gnvs->smif = 0;
                break;
        default:
                return 0;
        }
 
        /* On success, the IO Trap Handler returns 0
         * On failure, the IO Trap Handler returns a value != 0
         *
         * For now, we force the return value to 0 and log all traps to
         * see what's going on.
         */
        return 1;
}
 
/* gpi_sts is GPIO 47:32 */
void mainboard_smi_gpi(u32 gpi_sts)
{
}
 
void mainboard_smi_sleep(u8 slp_typ)
{
        /* Disable USB charging if required */
        switch (slp_typ) {
        case ACPI_S3:
                set_power_led(LED_BLINK);
 
                /* Enable DCP mode */
                if (CONFIG(BOARD_GOOGLE_TIDUS)) {
                        set_gpio(GPIO_USB_CTL_1, 0);
                }
                break;
        case ACPI_S5:
                set_power_led(LED_OFF);
                break;
        }
}
 
int mainboard_smi_apmc(u8 apmc)
{
        switch (apmc) {
        case APM_CNT_ACPI_ENABLE:
                break;
        case APM_CNT_ACPI_DISABLE:
                break;
        }
        return 0;
}