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