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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Intel MIC Platform Software Stack (MPSS)
4 *
5 * Copyright(c) 2013 Intel Corporation.
6 *
7 * Disclaimer: The codes contained in these modules may be specific to
8 * the Intel Software Development Platform codenamed: Knights Ferry, and
9 * the Intel product codenamed: Knights Corner, and are not backward
10 * compatible with other Intel products. Additionally, Intel will NOT
11 * support the codes or instruction set in future products.
12 *
13 * Intel MIC Card driver.
14 */
15#include <linux/debugfs.h>
16#include <linux/delay.h>
17#include <linux/seq_file.h>
18#include <linux/interrupt.h>
19#include <linux/device.h>
20
21#include "../common/mic_dev.h"
22#include "mic_device.h"
23
24/* Debugfs parent dir */
25static struct dentry *mic_dbg;
26
27/*
28 * mic_intr_show - Send interrupts to host.
29 */
30static int mic_intr_show(struct seq_file *s, void *unused)
31{
32 struct mic_driver *mdrv = s->private;
33 struct mic_device *mdev = &mdrv->mdev;
34
35 mic_send_intr(mdev, 0);
36 msleep(1000);
37 mic_send_intr(mdev, 1);
38 msleep(1000);
39 mic_send_intr(mdev, 2);
40 msleep(1000);
41 mic_send_intr(mdev, 3);
42 msleep(1000);
43
44 return 0;
45}
46
47DEFINE_SHOW_ATTRIBUTE(mic_intr);
48
49/*
50 * mic_create_card_debug_dir - Initialize MIC debugfs entries.
51 */
52void __init mic_create_card_debug_dir(struct mic_driver *mdrv)
53{
54 if (!mic_dbg)
55 return;
56
57 mdrv->dbg_dir = debugfs_create_dir(mdrv->name, mic_dbg);
58
59 debugfs_create_file("intr_test", 0444, mdrv->dbg_dir, mdrv,
60 &mic_intr_fops);
61}
62
63/*
64 * mic_delete_card_debug_dir - Uninitialize MIC debugfs entries.
65 */
66void mic_delete_card_debug_dir(struct mic_driver *mdrv)
67{
68 debugfs_remove_recursive(mdrv->dbg_dir);
69}
70
71/*
72 * mic_init_card_debugfs - Initialize global debugfs entry.
73 */
74void __init mic_init_card_debugfs(void)
75{
76 mic_dbg = debugfs_create_dir(KBUILD_MODNAME, NULL);
77}
78
79/*
80 * mic_exit_card_debugfs - Uninitialize global debugfs entry
81 */
82void mic_exit_card_debugfs(void)
83{
84 debugfs_remove(mic_dbg);
85}