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https://github.com/Telecominfraproject/OpenCellular.git
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27459f8600
Now pingpong and mutex tests compile. Still need some more work to handle the i8042-specific KEYPROTO task for keyboard tests. BUG=chrome-os-partner:18598 TEST=Build tests for link BRANCH=None Change-Id: I9ee35d4edb811f17b9a81beb799484a07c0bef14 Signed-off-by: Vic Yang <victoryang@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/47981
94 lines
2.4 KiB
C
94 lines
2.4 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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/*
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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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*/
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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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/*
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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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*/
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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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#ifdef CONFIG_TASK_CHIPSET
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/**
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* Check if chipset is in a given state.
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*
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* @param state_mask Combination of one or more CHIPSET_STATE_* flags.
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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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*/
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int chipset_in_state(int state_mask);
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#else
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static inline int chipset_in_state(int state_mask)
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{
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return 0;
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}
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#endif
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#ifdef CONFIG_TASK_CHIPSET
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/**
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* Ask the chipset to exit the hard off state.
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*
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* Does nothing if the chipset has already left the state, or was not in the
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* state to begin with.
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*/
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void chipset_exit_hard_off(void);
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#else
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static inline void chipset_exit_hard_off(void) { }
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#endif
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/**
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* Enable/disable CPU throttling.
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*
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* @param throttle Enable (!=0) or disable(0) throttling
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*/
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void chipset_throttle_cpu(int throttle);
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#ifdef CONFIG_TASK_CHIPSET
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/**
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* Immedaitely shut off power to main processor and chipset.
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*
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* This is intended for use when the system is too hot or battery power is
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* critical.
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*/
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void chipset_force_shutdown(void);
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#else
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static inline void chipset_force_shutdown(void) { }
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#endif
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/**
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* Reset the CPU and/or chipset.
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*
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* @param cold_reset If !=0, force a cold reset of the CPU and chipset;
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* if 0, just pulse the reset line to the CPU.
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*/
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void chipset_reset(int cold_reset);
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#endif /* __CROS_EC_CHIPSET_H */
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