smihandler.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <baseboard/variant.h>
#include <console/console.h>
#include <cpu/x86/smm.h>
#include <ec/google/chromeec/smm.h>
#include <gpio.h>
#include <soc/iomap.h>
#include <soc/nvs.h>
#include <soc/pm.h>
#include <intelblocks/smihandler.h>
#include "ec.h"
#include <variant/gpio.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;
}
 
void mainboard_smi_gpi_handler(const struct gpi_status *sts)
{
        if (gpi_status_get(sts, EC_SMI_GPI))
                chromeec_smi_process_events();
}
 
__weak void mainboard_gpio_smi_sleep(void)
{
}
 
void mainboard_smi_sleep(u8 slp_typ)
{
        if (CONFIG(EC_GOOGLE_CHROMEEC))
                chromeec_smi_sleep(slp_typ, MAINBOARD_EC_S3_WAKE_EVENTS,
                                        MAINBOARD_EC_S5_WAKE_EVENTS);
 
        mainboard_gpio_smi_sleep();
}
 
int mainboard_smi_apmc(u8 apmc)
{
        if (CONFIG(EC_GOOGLE_CHROMEEC))
                chromeec_smi_apmc(apmc, MAINBOARD_EC_SCI_EVENTS,
                                        MAINBOARD_EC_SMI_EVENTS);
        return 0;
}