From d978174d1dec9a4afba0510933eb34aee63355d5 Mon Sep 17 00:00:00 2001 From: Duncan Laurie Date: Mon, 15 Oct 2018 15:18:01 +0000 Subject: ec/google/wilco: Add SMM handlers Add EC handlers for specific SMM actions: - on entry to sleep state tell the EC to save state and to prepare for the host to enter sleep - on ACPI enable/disable send command to the EC - add a function to print SMI reasons when eSPI SMI is received These need to be called by the mainboard handlers which will be done when a board is added that uses this EC. Change-Id: Ibabdc1462e0a8df405f9520244b83684e2ccf2f5 Signed-off-by: Duncan Laurie Reviewed-on: https://review.coreboot.org/29119 Reviewed-by: Aaron Durbin Reviewed-by: Paul Menzel Tested-by: build bot (Jenkins) --- src/ec/google/wilco/smm.h | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 src/ec/google/wilco/smm.h (limited to 'src/ec/google/wilco/smm.h') diff --git a/src/ec/google/wilco/smm.h b/src/ec/google/wilco/smm.h new file mode 100644 index 0000000000..692cdef2fe --- /dev/null +++ b/src/ec/google/wilco/smm.h @@ -0,0 +1,47 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2018 Google LLC + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef EC_GOOGLE_WILCO_SMM_H +#define EC_GOOGLE_WILCO_SMM_H + +/* Handlers for SMI events */ + +/** + * wilco_ec_smi_sleep + * + * Perform EC actions before suspend or power-off. + * + * @slp_type: Requested sleep type + */ +void wilco_ec_smi_sleep(int slp_type); + +/** + * wilco_ec_smi_apmc + * + * Perform EC actions on ACPI OS commands. + * This is used when the OS enables or disables ACPI. + * + * @apmc: OS command + */ +void wilco_ec_smi_apmc(int apmc); + +/** + * wilco_ec_smi_espi + * + * Perform EC actions on EC eSPI SMI interrupt. + */ +void wilco_ec_smi_espi(void); + +#endif /* EC_GOOGLE_WILCO_SMM_H */ -- cgit v1.2.3