diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/dmv177/startup/setvec.c')
-rw-r--r-- | c/src/lib/libbsp/powerpc/dmv177/startup/setvec.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/powerpc/dmv177/startup/setvec.c b/c/src/lib/libbsp/powerpc/dmv177/startup/setvec.c new file mode 100644 index 0000000000..4fb6333da8 --- /dev/null +++ b/c/src/lib/libbsp/powerpc/dmv177/startup/setvec.c @@ -0,0 +1,71 @@ +/* set_vector + * + * This routine installs an interrupt vector on the target Board/CPU. + * This routine is allowed to be as board dependent as necessary. + * + * INPUT: + * handler - interrupt handler entry point + * vector - vector number + * type - 0 indicates raw hardware connect + * 1 indicates RTEMS interrupt connect + * + * RETURNS: + * address of previous interrupt handler + * + * Derived from c/src/lib/libbsp/no_cpu/no_bsp/startup/setvec.c: + * + * COPYRIGHT (c) 1989-1997. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * The license and distribution terms for this file may in + * the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * $Id: + */ + +#include <rtems.h> +#include <bsp.h> + + +/* PAGE + * + * set_vector + * + * This routine installs vector number vector. + * + * Input parameters: + * handler - routine to call when the interupt occurs + * vector - vector id + * type - RAW or RTEMS vector + * + * Output parameters: NONE + * + * Return values: Removed interupt routine or 0 if none. + */ + +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; + rtems_status_code status; + + + /* + * vectors greater than PPC603e_IRQ_LAST are handled by the General purpose + * interupt handler. + */ + if ( vector > PPC_IRQ_LAST ) { + set_EE_vector ( handler, vector ); + } + else { + status = rtems_interrupt_catch + ( handler, vector, (rtems_isr_entry *) &previous_isr ); + } + return previous_isr; +} + |