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Viewing changes to arch/arm/include/asm/mach/irq.h

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-tz023xykf0i6eosh
Tags: upstream-3.2.0
Import upstream version 3.2.0

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arch/arm/include/asm/mach/irq.h
 
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/*
 
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 *  arch/arm/include/asm/mach/irq.h
 
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 *
 
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 *  Copyright (C) 1995-2000 Russell King.
 
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 *
 
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 * This program is free software; you can redistribute it and/or modify
 
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 * it under the terms of the GNU General Public License version 2 as
 
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 * published by the Free Software Foundation.
 
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 */
 
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#ifndef __ASM_ARM_MACH_IRQ_H
 
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#define __ASM_ARM_MACH_IRQ_H
 
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#include <linux/irq.h>
 
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struct seq_file;
 
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/*
 
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 * This is internal.  Do not use it.
 
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 */
 
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extern void init_FIQ(void);
 
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extern int show_fiq_list(struct seq_file *, int);
 
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#ifdef CONFIG_MULTI_IRQ_HANDLER
 
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extern void (*handle_arch_irq)(struct pt_regs *);
 
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#endif
 
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/*
 
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 * This is for easy migration, but should be changed in the source
 
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 */
 
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#define do_bad_IRQ(irq,desc)                            \
 
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do {                                                    \
 
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        raw_spin_lock(&desc->lock);                     \
 
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        handle_bad_irq(irq, desc);                      \
 
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        raw_spin_unlock(&desc->lock);                   \
 
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} while(0)
 
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#ifndef __ASSEMBLY__
 
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/*
 
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 * Entry/exit functions for chained handlers where the primary IRQ chip
 
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 * may implement either fasteoi or level-trigger flow control.
 
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 */
 
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static inline void chained_irq_enter(struct irq_chip *chip,
 
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                                     struct irq_desc *desc)
 
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{
 
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        /* FastEOI controllers require no action on entry. */
 
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        if (chip->irq_eoi)
 
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                return;
 
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        if (chip->irq_mask_ack) {
 
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                chip->irq_mask_ack(&desc->irq_data);
 
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        } else {
 
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                chip->irq_mask(&desc->irq_data);
 
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                if (chip->irq_ack)
 
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                        chip->irq_ack(&desc->irq_data);
 
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        }
 
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}
 
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static inline void chained_irq_exit(struct irq_chip *chip,
 
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                                    struct irq_desc *desc)
 
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{
 
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        if (chip->irq_eoi)
 
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                chip->irq_eoi(&desc->irq_data);
 
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        else
 
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                chip->irq_unmask(&desc->irq_data);
 
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}
 
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#endif
 
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#endif