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65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
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/*
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* Support for virtual IRQ subgroups debugfs mapping.
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*
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* Copyright (C) 2010 Paul Mundt
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*
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* Modelled after arch/powerpc/kernel/irq.c.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/seq_file.h>
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#include <linux/fs.h>
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#include <linux/init.h>
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#include <linux/irq.h>
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#include <linux/debugfs.h>
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#include "internals.h"
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static int intc_irq_xlate_debug(struct seq_file *m, void *priv)
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{
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int i;
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seq_printf(m, "%-5s %-7s %-15s\n", "irq", "enum", "chip name");
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for (i = 1; i < nr_irqs; i++) {
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struct intc_map_entry *entry = intc_irq_xlate_get(i);
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struct intc_desc_int *desc = entry->desc;
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if (!desc)
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continue;
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seq_printf(m, "%5d ", i);
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seq_printf(m, "0x%05x ", entry->enum_id);
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seq_printf(m, "%-15s\n", desc->chip.name);
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}
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return 0;
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}
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static int intc_irq_xlate_open(struct inode *inode, struct file *file)
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{
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return single_open(file, intc_irq_xlate_debug, inode->i_private);
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}
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static const struct file_operations intc_irq_xlate_fops = {
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.open = intc_irq_xlate_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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static int __init intc_irq_xlate_init(void)
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{
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/*
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* XXX.. use arch_debugfs_dir here when all of the intc users are
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* converted.
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*/
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if (debugfs_create_file("intc_irq_xlate", S_IRUGO, NULL, NULL,
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&intc_irq_xlate_fops) == NULL)
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return -ENOMEM;
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return 0;
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}
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fs_initcall(intc_irq_xlate_init);
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