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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1995-05-11 17:39:37 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1995-05-11 17:39:37 +0000 |
commit | ac7d5ef06a6d6e8d84abbd1f0b82162725f98326 (patch) | |
tree | 9304cf759a73f2a1c6fd3191948f00e870af3787 /c/src/lib/libbsp/shmdr/intr.c | |
download | rtems-ac7d5ef06a6d6e8d84abbd1f0b82162725f98326.tar.bz2 |
Initial revision
Diffstat (limited to 'c/src/lib/libbsp/shmdr/intr.c')
-rw-r--r-- | c/src/lib/libbsp/shmdr/intr.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/shmdr/intr.c b/c/src/lib/libbsp/shmdr/intr.c new file mode 100644 index 0000000000..8982103227 --- /dev/null +++ b/c/src/lib/libbsp/shmdr/intr.c @@ -0,0 +1,58 @@ +/* void Shm_Cause_interrupt( node ) + * + * This routine is the shared memory driver routine which + * generates interrupts to other CPUs. + * + * It uses the information placed in the node status control + * block by each node. For example, when used with the Motorola + * MVME136 board, the MPCSR is used. + * + * Input parameters: + * node - destination of this packet (0 = broadcast) + * + * Output parameters: NONE + * + * 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 <rtems.h> +#include "shm.h" + +void Shm_Cause_interrupt( + rtems_unsigned32 node +) +{ + Shm_Interrupt_information *intr; + rtems_unsigned8 *u8; + rtems_unsigned16 *u16; + rtems_unsigned32 *u32; + rtems_unsigned32 value; + + intr = &Shm_Interrupt_table[node]; + value = intr->value; + + switch ( intr->length ) { + case NO_INTERRUPT: + break; + case BYTE: + u8 = (rtems_unsigned8 *)intr->address; + *u8 = (rtems_unsigned8) value; + break; + case WORD: + u16 = (rtems_unsigned16 *)intr->address; + *u16 = (rtems_unsigned16) value; + break; + case LONG: + u32 = (rtems_unsigned32 *)intr->address; + *u32 = (rtems_unsigned32) value; + break; + } +} |