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https://github.com/Telecominfraproject/OpenCellular.git
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a59178373a
This would throttle proto1 systems, if it weren't for a HW bug which means we don't have prochot control over proto1 systems at all. Signed-off-by: Randall Spangler <rspangler@chromium.org> BUG=chrome-os-partner:8982 TEST=system still boots Change-Id: Ie42c034141f24795ec2bfee592e194001d3cd174
45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Chipset module for Chrome EC.
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*
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* This is intended to be a platform/chipset-neutral interface, implemented by
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* all main chipsets (x86, gaia, etc.). */
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#ifndef __CROS_EC_CHIPSET_H
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#define __CROS_EC_CHIPSET_H
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#include "common.h"
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/* Chipset state mask
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*
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* Note that this is a non-exhaustive list of states which the main chipset can
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* be in, and is potentially one-to-many for real, underlying chipset states.
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* That's why chipset_in_state() asks "Is the chipset in something
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* approximating this state?" and not "Tell me what state the chipset is in and
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* I'll compare it myself with the state(s) I want." */
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enum chipset_state_mask {
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CHIPSET_STATE_HARD_OFF = 0x01, /* Hard off (G3) */
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CHIPSET_STATE_SOFT_OFF = 0x02, /* Soft off (S5) */
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CHIPSET_STATE_SUSPEND = 0x04, /* Suspend (S3) */
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CHIPSET_STATE_ON = 0x08, /* On (S0) */
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/* Common combinations */
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CHIPSET_STATE_ANY_OFF = (CHIPSET_STATE_HARD_OFF |
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CHIPSET_STATE_SOFT_OFF), /* Any off state */
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};
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/* Return non-zero if the chipset is in one of the states specified in the
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* mask. */
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int chipset_in_state(int state_mask);
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/* Ask the chipset to exit the hard off state. Does nothing if the chipset has
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* already left the state, or was not in the state to begin with. */
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void chipset_exit_hard_off(void);
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/* Enable/disable CPU throttling. */
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void chipset_throttle_cpu(int throttle);
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#endif /* __CROS_EC_CHIPSET_H */
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