From ac7d5ef06a6d6e8d84abbd1f0b82162725f98326 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Thu, 11 May 1995 17:39:37 +0000 Subject: Initial revision --- c/src/lib/libbsp/shmdr/cnvpkt.c | 42 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 c/src/lib/libbsp/shmdr/cnvpkt.c (limited to 'c/src/lib/libbsp/shmdr/cnvpkt.c') diff --git a/c/src/lib/libbsp/shmdr/cnvpkt.c b/c/src/lib/libbsp/shmdr/cnvpkt.c new file mode 100644 index 0000000000..2c3a144167 --- /dev/null +++ b/c/src/lib/libbsp/shmdr/cnvpkt.c @@ -0,0 +1,42 @@ +/* void Shm_Convert_packet( &packet ) + * + * This routine is the shared memory locked queue MPCI driver routine + * used to convert the RTEMS's information in a packet from non-native + * format to processor native format. + * + * Input parameters: + * packet - pointer to a packet + * + * Output parameters: + * *packet - packet in native format + * + * NOTE: Message buffers are not manipulated. + * Endian conversion is currently the only conversion. + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + +#include +#include "shm.h" + +void Shm_Convert_packet( + rtems_packet_prefix *packet +) +{ + rtems_unsigned32 *pkt, i; + + pkt = (rtems_unsigned32 *) packet; + for ( i=RTEMS_MINIMUN_HETERO_CONVERSION ; i ; i--, pkt++ ) + *pkt = CPU_swap_u32( *pkt ); + + for ( i=packet->to_convert ; i ; i--, pkt++ ) + *pkt = CPU_swap_u32( *pkt ); +} -- cgit v1.2.3