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/* Copyright 2022 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef __X86_COMMON_PWRSEQ_H__
#define __X86_COMMON_PWRSEQ_H__
#include <logging/log.h>
#include <ap_power_override_functions.h>
#include <power_signals.h>
#include <x86_power_signals.h>
/**
* @brief System power states for Non Deep Sleep Well
* EC is an always on device in a Non Deep Sx system except when EC
* is hibernated or all the VRs are turned off.
*/
enum power_states_ndsx {
/*
* Actual power states
*/
/* AP is off & EC is on */
SYS_POWER_STATE_G3,
/* AP is in soft off state */
SYS_POWER_STATE_S5,
/* AP is suspended to Non-volatile disk */
SYS_POWER_STATE_S4,
/* AP is suspended to RAM */
SYS_POWER_STATE_S3,
/* AP is in active state */
SYS_POWER_STATE_S0,
/*
* Intermediate power up states
*/
/* Determine if the AP's power rails are turned on */
SYS_POWER_STATE_G3S5,
/* Determine if AP is suspended from sleep */
SYS_POWER_STATE_S5S4,
/* Determine if Suspend to Disk is de-asserted */
SYS_POWER_STATE_S4S3,
/* Determine if Suspend to RAM is de-asserted */
SYS_POWER_STATE_S3S0,
/*
* Intermediate power down states
*/
/* Determine if the AP's power rails are turned off */
SYS_POWER_STATE_S5G3,
/* Determine if AP is suspended to sleep */
SYS_POWER_STATE_S4S5,
/* Determine if Suspend to Disk is asserted */
SYS_POWER_STATE_S3S4,
/* Determine if Suspend to RAM is asserted */
SYS_POWER_STATE_S0S3,
};
/* This encapsulates the attributes of the state machine */
struct pwrseq_context {
/* On power-on start boot up sequence */
enum power_states_ndsx power_state;
/* Indicate should exit G3 power state or not */
bool want_g3_exit;
#if defined(PWRSEQ_REQUIRE_ESPI)
bool espi_ready;
#endif
};
#endif /* __X86_COMMON_PWRSEQ_H__ */
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