56642930ab
Currently, the message below is printed, suggesting it’s decimal notation: coreboot-4.12-1530-g7acbd5fc45 Sun Jul 19 07:47:58 UTC 2020 smm starting (log level: 7)... EC event 48 GPI (mask 1000) Prepend 0x, so it’s clear it’s hexadecimal notation. EC event 0x48 Use the command below change all places: git grep -l 'EC event %02x' | xargs sed -i 's/EC event %02x/EC event %#02x/' Change-Id: I8d1e6434a0e550c5a19576f9f7fea05e7a812e49 Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/43585 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
|
|
#include <arch/io.h>
|
|
#include <console/console.h>
|
|
#include <cpu/x86/smm.h>
|
|
#include <ec/acpi/ec.h>
|
|
#include <ec/lenovo/h8/h8.h>
|
|
#include <southbridge/intel/bd82x6x/pch.h>
|
|
#include <southbridge/intel/common/pmutil.h>
|
|
|
|
#define GPE_EC_SCI 1
|
|
#define GPE_EC_WAKE 13
|
|
|
|
static void mainboard_smi_handle_ec_sci(void)
|
|
{
|
|
u8 status = inb(EC_SC);
|
|
u8 event;
|
|
|
|
if (!(status & EC_SCI_EVT))
|
|
return;
|
|
|
|
event = ec_query();
|
|
printk(BIOS_DEBUG, "EC event %#02x\n", event);
|
|
}
|
|
|
|
void mainboard_smi_gpi(u32 gpi_sts)
|
|
{
|
|
if (gpi_sts & (1 << GPE_EC_SCI))
|
|
mainboard_smi_handle_ec_sci();
|
|
}
|
|
|
|
int mainboard_smi_apmc(u8 data)
|
|
{
|
|
switch (data) {
|
|
case APM_CNT_ACPI_ENABLE:
|
|
/* use 0x1600/0x1604 to prevent races with userspace */
|
|
ec_set_ports(0x1604, 0x1600);
|
|
/* route EC_SCI to SCI */
|
|
gpi_route_interrupt(GPE_EC_SCI, GPI_IS_SCI);
|
|
/* discard all events, and enable attention */
|
|
ec_write(0x80, 0x01);
|
|
break;
|
|
case APM_CNT_ACPI_DISABLE:
|
|
/* we have to use port 0x62/0x66, as 0x1600/0x1604 doesn't
|
|
provide a EC query function */
|
|
ec_set_ports(0x66, 0x62);
|
|
/* route EC_SCI to SMI */
|
|
gpi_route_interrupt(GPE_EC_SCI, GPI_IS_SMI);
|
|
/* discard all events, and enable attention */
|
|
ec_write(0x80, 0x01);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void mainboard_smi_sleep(u8 slp_typ)
|
|
{
|
|
if (slp_typ == 3) {
|
|
u8 ec_wake = ec_read(0x32);
|
|
/* If EC wake events are enabled, enable wake on EC WAKE GPE. */
|
|
if (ec_wake & 0x14) {
|
|
/* Redirect EC WAKE GPE to SCI. */
|
|
gpi_route_interrupt(GPE_EC_WAKE, GPI_IS_SCI);
|
|
}
|
|
}
|
|
}
|