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init: add SYS_GET_DEVICE() macro to bury &__initconfig_* names usage.

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Add a macro to retrieve the device structure for a config structure by
name.  This avoids the very error prone activity of the developer
having to *know* the way the internal object is named.

Change-Id: I1d7857d5aad6dfd4b1b46f63b946aad1ae3a6dc4
Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
This commit is contained in:
Dirk Brandewie 2015-10-15 08:23:03 -07:00 • committed by Anas Nashif
commit 7a1e221733
1 changed files with 18 additions and 0 deletions
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18
include/init.h
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@ -83,6 +83,24 @@
.config = &(config_##name),\
.driver_data = data}
/**
* @def SYS_GET_DEVICE
*
* @brief Obtain a pointer to a device object by name
*
* @details Return the address of a device object created by
* SYS_DEFINE_DEVICE(), using the @name provided to SYS_DEFINE_DEVICE().
*
* @param name The same name provided to SYS_DEFINE_DEVICE()
*
* @return A pointer to the device object created by SYS_DEFINE_DEVICE()
*/
#define _PASTE2(a, b) a##b
#define _PASTE(a, b) _PASTE2(a, b)
#define SYS_GET_DEVICE(name) (&(_PASTE(__initconfig_, name)))
/* The following legacy APIs are provided for backwards compatibility */
#define pre_kernel_core_init(cfg, data) \