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/* Copyright (c) 2012 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.
*/
/* Chipset module for Chrome EC.
*
* This is intended to be a platform/chipset-neutral interface, implemented by
* all main chipsets (x86, gaia, etc.). */
#ifndef __CROS_EC_CHIPSET_H
#define __CROS_EC_CHIPSET_H
#include "common.h"
/* Chipset state mask
*
* Note that this is a non-exhaustive list of states which the main chipset can
* be in, and is potentially one-to-many for real, underlying chipset states.
* That's why chipset_in_state() asks "Is the chipset in something
* approximating this state?" and not "Tell me what state the chipset is in and
* I'll compare it myself with the state(s) I want." */
enum chipset_state_mask {
CHIPSET_STATE_HARD_OFF = 0x01, /* Hard off (G3) */
CHIPSET_STATE_SOFT_OFF = 0x02, /* Soft off (S5) */
CHIPSET_STATE_SUSPEND = 0x04, /* Suspend (S3) */
CHIPSET_STATE_ON = 0x08, /* On (S0) */
/* Common combinations */
CHIPSET_STATE_ANY_OFF = (CHIPSET_STATE_HARD_OFF |
CHIPSET_STATE_SOFT_OFF), /* Any off state */
};
/* Return non-zero if the chipset is in one of the states specified in the
* mask. */
int chipset_in_state(int state_mask);
/* Ask the chipset to exit the hard off state. Does nothing if the chipset has
* already left the state, or was not in the state to begin with. */
void chipset_exit_hard_off(void);
#endif /* __CROS_EC_CHIPSET_H */
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