79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
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/*
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* Copyright (c) 2015 Intel Corporation.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_INCLUDE_INIT_H_
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#define ZEPHYR_INCLUDE_INIT_H_
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#include <device.h>
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#include <toolchain.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* System initialization levels. The PRE_KERNEL_1 and PRE_KERNEL_2 levels are
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* executed in the kernel's initialization context, which uses the interrupt
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* stack. The remaining levels are executed in the kernel's main task.
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*/
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#define _SYS_INIT_LEVEL_PRE_KERNEL_1 0
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#define _SYS_INIT_LEVEL_PRE_KERNEL_2 1
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#define _SYS_INIT_LEVEL_POST_KERNEL 2
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#define _SYS_INIT_LEVEL_APPLICATION 3
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/* A counter is used to avoid issues when two or more system devices
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* are declared in the same C file with the same init function.
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*/
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#define Z_SYS_NAME(init_fn) _CONCAT(_CONCAT(sys_init_, init_fn), __COUNTER__)
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/**
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* @def SYS_INIT
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*
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* @brief Run an initialization function at boot at specified priority
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*
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* @details This macro lets you run a function at system boot.
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*
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* @param init_fn Pointer to the boot function to run
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*
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* @param level The initialization level, See DEVICE_AND_API_INIT for details.
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*
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* @param prio Priority within the selected initialization level. See
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* DEVICE_AND_API_INIT for details.
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*/
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#define SYS_INIT(init_fn, level, prio) \
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DEVICE_AND_API_INIT(Z_SYS_NAME(init_fn), "", init_fn, NULL, NULL, level,\
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prio, NULL)
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/**
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* @def SYS_DEVICE_DEFINE
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*
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* @brief Run an initialization function at boot at specified priority,
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* and define device PM control function.
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*
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* @details This macro lets you run a function at system boot.
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*
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* @param drv_name Name of this system device
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* @param init_fn Pointer to the boot function to run
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* @param pm_control_fn Pointer to device_pm_control function.
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* Can be empty function (device_pm_control_nop) if not
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* implemented.
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* @param level The initialization level, See DEVICE_INIT for details.
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* @param prio Priority within the selected initialization level. See
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* DEVICE_INIT for details.
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*/
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#define SYS_DEVICE_DEFINE(drv_name, init_fn, pm_control_fn, level, prio) \
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DEVICE_DEFINE(Z_SYS_NAME(init_fn), drv_name, init_fn, pm_control_fn, \
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NULL, NULL, level, prio, NULL)
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#ifdef __cplusplus
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}
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#endif
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#endif /* ZEPHYR_INCLUDE_INIT_H_ */
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