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init: refactor documentation

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This header provides one public API function, but lacked the
annotations necessary to process it when generating documentation.
Also detailed documentation was provided in Z_INIT_ENTRY_DEFINE which
is an internal function excluded from documentation.

Add the necessary directives to include SYS_INIT() in generated
documentation and move the description of the level and prio
properties to it.

Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
This commit is contained in:
Peter Bigot 2020-06-10 09:37:56 -05:00 • committed by Carles Cufí
commit 2fe35e8013
1 changed files with 25 additions and 22 deletions
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47
include/init.h
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@ -70,6 +70,31 @@ void z_sys_init_run_level(int32_t level);
* *
* @param device A device driver instance pointer or NULL * @param device A device driver instance pointer or NULL
* *
* @param level The initialization level at which configuration
* occurs. See SYS_INIT().
*
* @param prio The initialization priority of the object, relative to
* other objects of the same initialization level. See SYS_INIT().
*/
#define Z_INIT_ENTRY_DEFINE(entry_name, init_fn, device, level, prio) \
static const Z_DECL_ALIGN(struct init_entry) \
_CONCAT(__init_, entry_name) __used \
__attribute__((__section__(".init_" #level STRINGIFY(prio)))) = { \
.init = (init_fn), \
.dev = (device), \
}
/**
* @def SYS_INIT
*
* @ingroup device_model
*
* @brief Run an initialization function at boot at specified priority
*
* @details This macro lets you run a function at system boot.
*
* @param init_fn Pointer to the boot function to run
*
* @param level The initialization level at which configuration occurs. * @param level The initialization level at which configuration occurs.
* Must be one of the following symbols, which are listed in the order * Must be one of the following symbols, which are listed in the order
* they are performed by the kernel: * they are performed by the kernel:
@ -101,28 +126,6 @@ void z_sys_init_run_level(int32_t level);
* expressions are *not* permitted * expressions are *not* permitted
* (e.g. CONFIG_KERNEL_INIT_PRIORITY_DEFAULT + 5). * (e.g. CONFIG_KERNEL_INIT_PRIORITY_DEFAULT + 5).
*/ */
#define Z_INIT_ENTRY_DEFINE(entry_name, init_fn, device, level, prio) \
static const Z_DECL_ALIGN(struct init_entry) \
_CONCAT(__init_, entry_name) __used \
__attribute__((__section__(".init_" #level STRINGIFY(prio)))) = { \
.init = (init_fn), \
.dev = (device), \
}
/**
* @def SYS_INIT
*
* @brief Run an initialization function at boot at specified priority
*
* @details This macro lets you run a function at system boot.
*
* @param init_fn Pointer to the boot function to run
*
* @param level The initialization level, See Z_INIT_ENTRY_DEFINE for details.
*
* @param prio Priority within the selected initialization level. See
* Z_INIT_ENTRY_DEFINE for details.
*/
#define SYS_INIT(init_fn, level, prio) \ #define SYS_INIT(init_fn, level, prio) \
Z_INIT_ENTRY_DEFINE(Z_SYS_NAME(init_fn), init_fn, NULL, level, prio) Z_INIT_ENTRY_DEFINE(Z_SYS_NAME(init_fn), init_fn, NULL, level, prio)