zephyr/include/init.h
Dirk Brandewie ac3fdf0be1 init: Add init system calls to micro and nano kernel init
Add the call sites for the various init levels defined by the init
system.

These call sites are noops if there is no init proceedure registered
at a given init level.

pre_app_init has been renamed to app_early_init and late_initconfig to
app_late_init to better reflect the ordering and intended use of these
init levels

Change-Id: I71e38d936a97da8fe163f4b7cf0ce6725f1c903e
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
2016-02-05 20:14:27 -05:00

95 lines
3.5 KiB
C

/* Copyright (c) 2015 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2) Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3) Neither the name of Intel Corporation nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _INIT_H_
#define _INIT_H_
#include <device.h>
#define __used __attribute__((__used__))
#define PURE 0
#define NANO_EARLY 1
#define NANO_LATE 2
#define MICRO_EARLY 3
#define MICRO_LATE 4
#define APP_EARLY 5
#define APP_LATE 6
/*! @def __define_initconfig
*
* @brief Define an init object
*
* @details This macro declares an init object to be placed a
* given init level section in the image. This macro not should be used
* directly.
*
* @param cfg_name Name of the config object created with
* DECLARE_DEVICE_INIT_CONFIG() macro that will be referenced by
* init object.
*
* @param id The init level id where the init object will be placed
* in the image.
*
* @param driver_data The pointer to the driver data for the driver instance.
* @sa DECLARE_DEVICE_INIT_CONFIG()
*/
#define __define_initconfig(cfg_name, id, data) \
static struct device (__initconfig_##cfg_name##id) __used \
__attribute__((__section__(".initconfig" #id ".init"))) = { \
.config = &(config_##cfg_name),\
.driver_data = data};
/* Run on interrupt stack; no {micro,nano} kernel objects available */
#define pure_init(cfg, data) __define_initconfig(cfg, \
PURE, data)
/* Run from nano kernel idle task; no micro kernel objects available */
#define nano_early_init(cfg, data) __define_initconfig(cfg, \
NANO_EARLY, data)
#define nano_late_init(cfg, data) __define_initconfig(cfg, \
NANO_LATE, data)
/* Run from micro kernel idle task. */
#define micro_early_init(cfg, data) __define_initconfig(cfg, \
MICRO_EARLY, data)
#define micro_late_init(cfg, data) __define_initconfig(cfg, \
MICRO_LATE, data)
/* Run in the idle task; In a nano kernel only system run after
* nano_late_init(). In a micro kernel system after micro_late_init()
*/
#define app_early_init(cfg, data) __define_initconfig(cfg, \
APP_EARLY, data)
#define app_late_init(cfg, data) __define_initconfig(cfg, \
APP_LATE, data)
#endif /* _INIT_H_ */