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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2000-11-13 22:40:29 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2000-11-13 22:40:29 +0000 |
commit | b21b0ab3e77d91fc32e4324d3dfaf57ce24096ab (patch) | |
tree | f20f740d0789c29c4ee5784b1455ef841c14ae36 /c/src/lib/libbsp/sparc/leon/startup/setvec.c | |
parent | 2000-11-13 Jiri Gaisler <jgais@ws.estec.esa.nl> (diff) | |
download | rtems-b21b0ab3e77d91fc32e4324d3dfaf57ce24096ab.tar.bz2 |
2000-11-13 Jiri Gaisler <jgais@ws.estec.esa.nl>
* .cvsignore, ChangeLog, Makefile.am, README, bsp_specs,
configure.in, times, clock/.cvsignore, clock/Makefile.am,
clock/ckinit.c, console/.cvsignore, console/Makefile.am,
console/console.c, console/consolereserveresources.c,
console/debugputs.c, gnatsupp/.cvsignore,
gnatsupp/Makefile.am, gnatsupp/gnatsupp.c,
include/.cvsignore, include/Makefile.am, include/bsp.h,
include/coverhd.h, include/leon.h, start/.cvsignore,
start/Makefile.am, startup/.cvsignore, startup/Makefile.am,
startup/boardinit.S, startup/linkcmds, startup/setvec.c,
startup/spurious.c, timer/.cvsignore, timer/Makefile.am,
timer/timer.c, tools/.cvsignore, tools/Makefile.am,
tools/configure.in, tools/runtest.in, wrapup/.cvsignore,
wrapup/Makefile.am: New file.
Diffstat (limited to '')
-rw-r--r-- | c/src/lib/libbsp/sparc/leon/startup/setvec.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/sparc/leon/startup/setvec.c b/c/src/lib/libbsp/sparc/leon/startup/setvec.c new file mode 100644 index 0000000000..27adfa7b4b --- /dev/null +++ b/c/src/lib/libbsp/sparc/leon/startup/setvec.c @@ -0,0 +1,72 @@ +/* set_vector + * + * This routine installs an interrupt vector on the SPARC simulator. + * + * 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) 1989-1998. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * Ported to LEON implementation of the SPARC by On-Line Applications + * Research Corporation (OAR) under contract to the European Space + * Agency (ESA). + * + * LEON modifications of respective RTEMS file: COPYRIGHT (c) 1995. + * European Space Agency. + * + * $Id$ + */ + +#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; + unsigned32 real_trap; + unsigned32 source; + + if ( type ) + rtems_interrupt_catch( handler, vector, &previous_isr ); + else + _CPU_ISR_install_raw_handler( vector, handler, (void *)&previous_isr ); + + real_trap = SPARC_REAL_TRAP_NUMBER( vector ); + + if ( LEON_INT_TRAP( real_trap ) ) { + + source = LEON_TRAP_SOURCE( real_trap ); + + LEON_Clear_interrupt( source ); + LEON_Unmask_interrupt( source ); + } + + return previous_isr; +} + +/* LEON specific power-down function */ + +void _CPU_Thread_Idle_body( void ) +{ + while (1) { + LEON_REG.Power_Down = 0; /* value is irrelevant */ + } +} + |