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// SPDX-License-Identifier: GPL-2.0
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irqnr.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
/*
* /proc/interrupts
*/
static void *int_seq_start(struct seq_file *f, loff_t *pos)
{
return (*pos <= nr_irqs) ? pos : NULL;
}
static void *int_seq_next(struct seq_file *f, void *v, loff_t *pos)
{
(*pos)++;
if (*pos > nr_irqs)
return NULL;
return pos;
}
static void int_seq_stop(struct seq_file *f, void *v)
{
/* Nothing to do */
}
static const struct seq_operations int_seq_ops = {
.start = int_seq_start,
.next = int_seq_next,
.stop = int_seq_stop,
.show = show_interrupts
};
static int interrupts_open(struct inode *inode, struct file *filp)
{
return seq_open(filp, &int_seq_ops);
}
static const struct file_operations proc_interrupts_operations = {
.open = interrupts_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
};
static int __init proc_interrupts_init(void)
{
proc_create("interrupts", 0, NULL, &proc_interrupts_operations);
return 0;
}
fs_initcall(proc_interrupts_init);
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