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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSImplClassicDPMem
*
* @brief This source file contains the implementation of
* rtems_port_create() and the Dual-Ported Memory Manager system
* initialization.
*/
/*
* COPYRIGHT (c) 1989-2014.
* On-Line Applications Research Corporation (OAR).
*
* 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.
*
* 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 OWNER 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/rtems/dpmemimpl.h>
#include <rtems/rtems/status.h>
#include <rtems/rtems/support.h>
#include <rtems/score/address.h>
#include <rtems/score/thread.h>
#include <rtems/sysinit.h>
rtems_status_code rtems_port_create(
rtems_name name,
void *internal_start,
void *external_start,
uint32_t length,
rtems_id *id
)
{
Dual_ported_memory_Control *the_port;
if ( !rtems_is_name_valid( name ) )
return RTEMS_INVALID_NAME;
if ( !id )
return RTEMS_INVALID_ADDRESS;
if ( !_Addresses_Is_aligned( internal_start ) ||
!_Addresses_Is_aligned( external_start ) )
return RTEMS_INVALID_ADDRESS;
the_port = _Dual_ported_memory_Allocate();
if ( !the_port ) {
_Objects_Allocator_unlock();
return RTEMS_TOO_MANY;
}
the_port->internal_base = internal_start;
the_port->external_base = external_start;
the_port->length = length - 1;
*id = _Objects_Open_u32(
&_Dual_ported_memory_Information,
&the_port->Object,
name
);
_Objects_Allocator_unlock();
return RTEMS_SUCCESSFUL;
}
static void _Dual_ported_memory_Manager_initialization( void )
{
_Objects_Initialize_information( &_Dual_ported_memory_Information );
}
RTEMS_SYSINIT_ITEM(
_Dual_ported_memory_Manager_initialization,
RTEMS_SYSINIT_CLASSIC_DUAL_PORTED_MEMORY,
RTEMS_SYSINIT_ORDER_MIDDLE
);
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