mic_debugfs.c
3.09 KB
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/*
* Intel MIC Platform Software Stack (MPSS)
*
* Copyright(c) 2013 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2, as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* The full GNU General Public License is included in this distribution in
* the file called "COPYING".
*
* Disclaimer: The codes contained in these modules may be specific to
* the Intel Software Development Platform codenamed: Knights Ferry, and
* the Intel product codenamed: Knights Corner, and are not backward
* compatible with other Intel products. Additionally, Intel will NOT
* support the codes or instruction set in future products.
*
* Intel MIC Card driver.
*
*/
#include <linux/debugfs.h>
#include <linux/delay.h>
#include <linux/seq_file.h>
#include <linux/interrupt.h>
#include <linux/device.h>
#include "../common/mic_dev.h"
#include "mic_device.h"
/* Debugfs parent dir */
static struct dentry *mic_dbg;
/**
* mic_intr_test - Send interrupts to host.
*/
static int mic_intr_test(struct seq_file *s, void *unused)
{
struct mic_driver *mdrv = s->private;
struct mic_device *mdev = &mdrv->mdev;
mic_send_intr(mdev, 0);
msleep(1000);
mic_send_intr(mdev, 1);
msleep(1000);
mic_send_intr(mdev, 2);
msleep(1000);
mic_send_intr(mdev, 3);
msleep(1000);
return 0;
}
static int mic_intr_test_open(struct inode *inode, struct file *file)
{
return single_open(file, mic_intr_test, inode->i_private);
}
static int mic_intr_test_release(struct inode *inode, struct file *file)
{
return single_release(inode, file);
}
static const struct file_operations intr_test_ops = {
.owner = THIS_MODULE,
.open = mic_intr_test_open,
.read = seq_read,
.llseek = seq_lseek,
.release = mic_intr_test_release
};
/**
* mic_create_card_debug_dir - Initialize MIC debugfs entries.
*/
void __init mic_create_card_debug_dir(struct mic_driver *mdrv)
{
struct dentry *d;
if (!mic_dbg)
return;
mdrv->dbg_dir = debugfs_create_dir(mdrv->name, mic_dbg);
if (!mdrv->dbg_dir) {
dev_err(mdrv->dev, "Cant create dbg_dir %s\n", mdrv->name);
return;
}
d = debugfs_create_file("intr_test", 0444, mdrv->dbg_dir,
mdrv, &intr_test_ops);
if (!d) {
dev_err(mdrv->dev,
"Cant create dbg intr_test %s\n", mdrv->name);
return;
}
}
/**
* mic_delete_card_debug_dir - Uninitialize MIC debugfs entries.
*/
void mic_delete_card_debug_dir(struct mic_driver *mdrv)
{
if (!mdrv->dbg_dir)
return;
debugfs_remove_recursive(mdrv->dbg_dir);
}
/**
* mic_init_card_debugfs - Initialize global debugfs entry.
*/
void __init mic_init_card_debugfs(void)
{
mic_dbg = debugfs_create_dir(KBUILD_MODNAME, NULL);
if (!mic_dbg)
pr_err("can't create debugfs dir\n");
}
/**
* mic_exit_card_debugfs - Uninitialize global debugfs entry
*/
void mic_exit_card_debugfs(void)
{
debugfs_remove(mic_dbg);
}