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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2011-09-01 15:52:12 +0000 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2011-09-01 15:52:12 +0000 |
commit | e2d0c6833eeab2bb9b5d9e6fabfdf0689042fb90 (patch) | |
tree | f3764f435117a16fd409a88b24788324c7c0a39c /cpukit/score/cpu/nios2/nios2-isr-install-vector.c | |
parent | Remove. (diff) | |
download | rtems-e2d0c6833eeab2bb9b5d9e6fabfdf0689042fb90.tar.bz2 |
2011-09-01 Sebastian Huber <sebastian.huber@embedded-brains.de>
* cpu.c, cpu_asm.S: Removed files.
* nios2-context-initialize.c, nios2-context-switch.S,
nios2-fatal-halt.c, nios2-initialize-vectors.c, nios2-initialize.c,
nios2-isr-get-level.c, nios2-isr-install-raw-handler.c,
nios2-isr-install-vector.c, nios2-isr-is-in-progress.c,
nios2-isr-set-level.c, nios2-thread-dispatch-disabled.c,
rtems/score/nios2-utility.h: New files.
* Makefile.am, preinstall.am: Reflect changes above.
* irq.c: Update due to API changes.
* rtems/score/cpu.h: New functions _CPU_Initialize_vectors(),
_CPU_ISR_Set_level(), and _CPU_Fatal_halt() (instead of macros).
Support for external interrupt controller (EIC). Documentation
changes.
Diffstat (limited to 'cpukit/score/cpu/nios2/nios2-isr-install-vector.c')
-rw-r--r-- | cpukit/score/cpu/nios2/nios2-isr-install-vector.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/cpukit/score/cpu/nios2/nios2-isr-install-vector.c b/cpukit/score/cpu/nios2/nios2-isr-install-vector.c new file mode 100644 index 0000000000..3feed998a4 --- /dev/null +++ b/cpukit/score/cpu/nios2/nios2-isr-install-vector.c @@ -0,0 +1,61 @@ +/* + * Copyright (c) 2006 Kolja Waschk (rtemsdev/ixo.de) + * + * COPYRIGHT (c) 1989-2006 + * 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.com/license/LICENSE. + * + * $Id$ + */ + +#ifdef HAVE_CONFIG_H + #include "config.h" +#endif + +#include <rtems/score/isr.h> + +/* + * _CPU_ISR_install_vector + * + * This kernel routine installs the RTEMS handler for the + * specified vector. + * + * Input parameters: + * vector - interrupt vector number + * old_handler - former ISR for this vector number + * new_handler - replacement ISR for this vector number + * + * Output parameters: NONE + * + * + * NO_CPU Specific Information: + * + * XXX document implementation including references if appropriate + */ + +void _CPU_ISR_install_vector( + uint32_t vector, + proc_ptr new_handler, + proc_ptr *old_handler +) +{ + *old_handler = _ISR_Vector_table[ vector ]; + + /* + * If the interrupt vector table is a table of pointer to isr entry + * points, then we need to install the appropriate RTEMS interrupt + * handler for this vector number. + */ + + _CPU_ISR_install_raw_handler( vector, new_handler, old_handler ); + + /* + * We put the actual user ISR address in '_ISR_vector_table'. This will + * be used by the _ISR_Handler so the user gets control. + */ + + _ISR_Vector_table[ vector ] = new_handler; +} |