4f609886de
Policy manager header has to be in the include for applications. Also it had several function prototypes that are not part of the policy. These functions were moved from the policy header to a dedicated private header. Signed-off-by: Flavio Ceolin <flavio.ceolin@intel.com>
51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
/*
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* Copyright (c) 2018 Intel Corporation.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr.h>
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#include <string.h>
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#include <device.h>
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#include <sys/atomic.h>
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#include <pm/state.h>
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#define LOG_LEVEL CONFIG_PM_LOG_LEVEL /* From power module Kconfig */
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#include <logging/log.h>
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LOG_MODULE_DECLARE(power);
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#define PM_STATES_LEN (1 + PM_STATE_SOFT_OFF - PM_STATE_ACTIVE)
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static atomic_t power_state_disable_count[PM_STATES_LEN];
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void pm_constraint_set(enum pm_state state)
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{
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atomic_val_t v;
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__ASSERT(state < PM_STATES_LEN, "Invalid power state!");
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v = atomic_inc(&power_state_disable_count[state]);
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__ASSERT(v < UINT_MAX, "Power state disable count overflowed!");
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/* Make compiler happy when assertions are disabled. */
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(void)(v);
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}
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void pm_constraint_release(enum pm_state state)
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{
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atomic_val_t v;
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__ASSERT(state < PM_STATES_LEN, "Invalid power state!");
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v = atomic_dec(&power_state_disable_count[state]);
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__ASSERT(v > 0, "Power state disable count underflowed!");
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/* Make compiler happy when assertions are disabled. */
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(void)(v);
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}
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bool pm_constraint_get(enum pm_state state)
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{
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__ASSERT(state < PM_STATES_LEN, "Invalid power state!");
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return (atomic_get(&power_state_disable_count[state]) == 0);
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}
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