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LibrePilot/flight/UAVObjects/uavobjecttemplate.c
stac 083e2b01a9 uavobject: Use linker to produce uavobj initcalls
The UAVObject initcall list is now automatically
generated at link time based on the exact set of
UAVObjects linked into the firmware image.

This will allow any subset of UAVObjects to be
used in any firmware image.

The uavobj_initcall() macro automatically adds the
marked function's address into the .initcalluavobj.init
ELF section.

The UAVObjectsInitializeAll() function now simply
iterates over the functions listed in the
.initcalluavobj.init section and calls them.

You can see the contents of this section in the ELF file
like this:
  ./tools/arm-2009q3/bin/arm-none-eabi-objdump \
      --syms -j .initcalluavobj.init \
      ./build/openpilot/OpenPilot.elf

This is fundamentally the same mechanism that the Linux
kernel uses to initialize the specific set of components
that the user has selected in their kernel configuration.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@2630 ebee16cc-31ac-478f-84a7-5cbb03baadba
2011-01-30 22:46:48 +00:00

111 lines
3.3 KiB
C

/**
******************************************************************************
* @addtogroup UAVObjects OpenPilot UAVObjects
* @{
* @addtogroup $(NAME) $(NAME)
* @brief $(DESCRIPTION)
*
* Autogenerated files and functions for $(NAME) Object
* @{
*
* @file $(NAMELC).c
* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
* @brief Implementation of the $(NAME) object. This file has been
* automatically generated by the UAVObjectGenerator.
*
* @note Object definition file: $(XMLFILE).
* This is an automatically generated file.
* DO NOT modify manually.
*
* @see The GNU Public License (GPL) Version 3
*
*****************************************************************************/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "openpilot.h"
#include "$(NAMELC).h"
// Private variables
static UAVObjHandle handle;
/**
* Initialize object.
* \return 0 Success
* \return -1 Failure
*/
int32_t $(NAME)Initialize(void)
{
// Register object with the object manager
handle = UAVObjRegister($(NAMEUC)_OBJID, $(NAMEUC)_NAME, $(NAMEUC)_METANAME, 0,
$(NAMEUC)_ISSINGLEINST, $(NAMEUC)_ISSETTINGS, $(NAMEUC)_NUMBYTES, &$(NAME)SetDefaults);
// Done
if (handle != 0)
{
return 0;
}
else
{
return -1;
}
}
uavobj_initcall($(NAME)Initialize);
/**
* Initialize object fields and metadata with the default values.
* If a default value is not specified the object fields
* will be initialized to zero.
*/
void $(NAME)SetDefaults(UAVObjHandle obj, uint16_t instId)
{
$(NAME)Data data;
UAVObjMetadata metadata;
// Initialize object fields to their default values
UAVObjGetInstanceData(obj, instId, &data);
memset(&data, 0, sizeof($(NAME)Data));
$(INITFIELDS)
UAVObjSetInstanceData(obj, instId, &data);
// Initialize object metadata to their default values
metadata.access = $(FLIGHTACCESS);
metadata.gcsAccess = $(GCSACCESS);
metadata.telemetryAcked = $(FLIGHTTELEM_ACKED);
metadata.telemetryUpdateMode = $(FLIGHTTELEM_UPDATEMODE);
metadata.telemetryUpdatePeriod = $(FLIGHTTELEM_UPDATEPERIOD);
metadata.gcsTelemetryAcked = $(GCSTELEM_ACKED);
metadata.gcsTelemetryUpdateMode = $(GCSTELEM_UPDATEMODE);
metadata.gcsTelemetryUpdatePeriod = $(GCSTELEM_UPDATEPERIOD);
metadata.loggingUpdateMode = $(LOGGING_UPDATEMODE);
metadata.loggingUpdatePeriod = $(LOGGING_UPDATEPERIOD);
UAVObjSetMetadata(obj, &metadata);
}
/**
* Get object handle
*/
UAVObjHandle $(NAME)Handle()
{
return handle;
}
/**
* @}
*/