forked from Imagelibrary/rtems
84 lines
2.9 KiB
C
84 lines
2.9 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/**
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* @file
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*/
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/*
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* COPYRIGHT (c) 1989-1999, 2016.
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* On-Line Applications Research Corporation (OAR).
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <rtems.h>
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#include "shm_driver.h"
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struct pkt_cpy {
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uint32_t packet[MAX_PACKET_SIZE/4];
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};
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/**
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* This routine is the shared memory driver locked queue write
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* MPCI driver routine. This routine sends the specified packet
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* to the destination specified by "node". A "node" value of
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* zero designates that this packet is to be broadcasted.
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*
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* @param node is the destination of this packet (0 = broadcast)
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* @param packet is the address of packet
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*
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* @return NONE
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*/
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rtems_mpci_entry Shm_Send_packet(
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uint32_t node,
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rtems_packet_prefix *packet
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)
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{
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Shm_Envelope_control *ecb, *tmp_ecb;
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uint32_t nnum;
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ecb = Shm_Packet_prefix_to_envelope_control_pointer( packet );
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if ( node ) {
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Shm_Build_preamble( ecb, node );
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Shm_Build_postamble( ecb );
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Shm_Append_to_receive_queue( node, ecb );
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(*Shm_Configuration->cause_intr)( node );
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}
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else {
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for( nnum = SHM_FIRST_NODE ; nnum <= SHM_MAXIMUM_NODES ; nnum++ )
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if ( rtems_object_get_local_node() != nnum ) {
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struct pkt_cpy *pkt;
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tmp_ecb = Shm_Allocate_envelope();
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if ( !tmp_ecb )
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rtems_fatal_error_occurred( SHM_NO_FREE_PKTS );
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Shm_Build_preamble( tmp_ecb, nnum );
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pkt = (struct pkt_cpy *)tmp_ecb->packet;
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*pkt = *((struct pkt_cpy *)packet);
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Shm_Build_postamble( tmp_ecb );
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Shm_Append_to_receive_queue( nnum, tmp_ecb );
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(*Shm_Configuration->cause_intr)( nnum );
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}
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Shm_Free_envelope( ecb );
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}
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}
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