65 строки
1.5 KiB
C
65 строки
1.5 KiB
C
|
/*
|
||
|
|
* 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);
|