Files
system76-coreboot/src/mainboard/google/rambi/smihandler.c
Kyösti Mälkki d84ace50e3 mb/google: Re-arrange mainboard_smi_sleep()
Change the order of enabling EC and GPE wake sources, so it comes more
obvious we can use existing chromeec handlers without changes.

Change-Id: I5a10afa2b816dc8c01074be68a63114ee027c1e2
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74604
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-08-16 18:04:07 +00:00

61 lines
1.4 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
#include <acpi/acpi.h>
#include <console/console.h>
#include <cpu/x86/smm.h>
#include <ec/google/chromeec/ec.h>
#include <ec/google/chromeec/smm.h>
#include "ec.h"
#include <soc/pm.h>
/* The wake gpio is SUS_GPIO[0]. */
#define WAKE_GPIO_EN SUS_GPIO_EN0
/* The entire 32-bit ALT_GPIO_SMI register is passed as a parameter. Note, that
* this includes the enable bits in the lower 16 bits. */
void mainboard_smi_gpi(uint32_t alt_gpio_smi)
{
if (alt_gpio_smi & (1 << EC_SMI_GPI))
chromeec_smi_process_events();
}
void mainboard_smi_sleep(uint8_t slp_typ)
{
/* Disable USB charging if required */
chromeec_set_usb_charge_mode(slp_typ);
switch (slp_typ) {
case ACPI_S3:
/* Enable wake pin in GPE block. */
enable_gpe(WAKE_GPIO_EN);
break;
}
switch (slp_typ) {
case ACPI_S3:
/* Enable wake events */
google_chromeec_set_wake_mask(MAINBOARD_EC_S3_WAKE_EVENTS);
break;
case ACPI_S5:
/* Enable wake events */
google_chromeec_set_wake_mask(MAINBOARD_EC_S5_WAKE_EVENTS);
break;
}
/* Disable SCI and SMI events */
google_chromeec_set_smi_mask(0);
google_chromeec_set_sci_mask(0);
/* Clear pending events that may trigger immediate wake */
while (google_chromeec_get_event() != EC_HOST_EVENT_NONE)
;
}
int mainboard_smi_apmc(uint8_t apmc)
{
chromeec_smi_apmc(apmc, MAINBOARD_EC_SCI_EVENTS, MAINBOARD_EC_SMI_EVENTS);
return 0;
}