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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2007-12-29 01:05:26 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2007-12-29 01:05:26 +0000 |
commit | 1bfc8f64f63f26c6fe29fd2a5566bf84582b2048 (patch) | |
tree | b84c19d6f707c1156c94db5885328675aa37c886 /nuttx/arch/z80/src/common/up_doirq.c | |
parent | 7e806d1ed76f03fbab77ab38b148b2a9c02eeba1 (diff) | |
download | px4-nuttx-1bfc8f64f63f26c6fe29fd2a5566bf84582b2048.tar.gz px4-nuttx-1bfc8f64f63f26c6fe29fd2a5566bf84582b2048.tar.bz2 px4-nuttx-1bfc8f64f63f26c6fe29fd2a5566bf84582b2048.zip |
Import of z80 target
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@455 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch/z80/src/common/up_doirq.c')
-rw-r--r-- | nuttx/arch/z80/src/common/up_doirq.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/nuttx/arch/z80/src/common/up_doirq.c b/nuttx/arch/z80/src/common/up_doirq.c new file mode 100644 index 000000000..d21cefabb --- /dev/null +++ b/nuttx/arch/z80/src/common/up_doirq.c @@ -0,0 +1,104 @@ +/**************************************************************************** + * common/up_doirq.c + * + * Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> +#include <sys/types.h> +#include <nuttx/irq.h> +#include <nuttx/arch.h> +#include <assert.h> +#include "up_arch.h" +#include "os_internal.h" +#include "up_internal.h" + +/**************************************************************************** + * Definitions + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Funtions + ****************************************************************************/ + +void up_doirq(int irq, chipreg_t *regs) +{ + up_ledon(LED_INIRQ); +#ifdef CONFIG_SUPPRESS_INTERRUPTS + PANIC(OSERR_ERREXCEPTION); +#else + if ((unsigned)irq < NR_IRQS) + { + /* Current regs non-zero indicates that we are processing + * an interrupt; current_regs is also used to manage + * interrupt level context switches. + */ + + current_regs = regs; + + /* Mask and acknowledge the interrupt */ + + up_maskack_irq(irq); + + /* Deliver the IRQ */ + + irq_dispatch(irq, regs); + + /* Indicate that we are no long in an interrupt handler */ + + current_regs = NULL; + + /* Unmask the last interrupt (global interrupts are still + * disabled. + */ + + up_enable_irq(irq); + } + up_ledoff(LED_INIRQ); +#endif +} |