diff options
Diffstat (limited to 'bsps/shared/start/setvec.c')
-rw-r--r-- | bsps/shared/start/setvec.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/bsps/shared/start/setvec.c b/bsps/shared/start/setvec.c new file mode 100644 index 0000000000..22b63136bf --- /dev/null +++ b/bsps/shared/start/setvec.c @@ -0,0 +1,43 @@ +/* + * This routine installs an interrupt vector on CPU architectures + * using the Simple Vectored Interrupt Model. This is the shared + * version which does nothing BSP specific. A BSP specific version + * will be needed if you need to enable an interrupt source via + * some register. + * + * INPUT PARAMETERS: + * handler - interrupt handler entry point + * vector - vector number + * type - 0 indicates raw hardware connect + * 1 indicates RTEMS interrupt connect + * + * OUTPUT PARAMETERS: NONE + * + * RETURNS: + * address of previous interrupt handler + * + * COPYRIGHT (c) 1989-2009. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#include <bsp.h> + +rtems_isr_entry set_vector( /* returns old vector */ + rtems_isr_entry handler, /* isr routine */ + rtems_vector_number vector, /* vector number */ + int type /* RTEMS or RAW intr */ +) +{ + rtems_isr_entry previous_isr; + + if ( type ) + rtems_interrupt_catch( handler, vector, &previous_isr ); + else + _CPU_ISR_install_raw_handler( vector, handler, (void *)&previous_isr ); + + return previous_isr; +} |