1/*
2 * Intel MIC Platform Software Stack (MPSS)
3 *
4 * Copyright(c) 2013 Intel Corporation.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License, version 2, as
8 * published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * The full GNU General Public License is included in this distribution in
16 * the file called "COPYING".
17 *
18 * Disclaimer: The codes contained in these modules may be specific to
19 * the Intel Software Development Platform codenamed: Knights Ferry, and
20 * the Intel product codenamed: Knights Corner, and are not backward
21 * compatible with other Intel products. Additionally, Intel will NOT
22 * support the codes or instruction set in future products.
23 *
24 * Intel MIC Card driver.
25 *
26 */
27#include <linux/debugfs.h>
28#include <linux/delay.h>
29#include <linux/seq_file.h>
30#include <linux/interrupt.h>
31#include <linux/device.h>
32
33#include "../common/mic_dev.h"
34#include "mic_device.h"
35
36/* Debugfs parent dir */
37static struct dentry *mic_dbg;
38
39/**
40 * mic_intr_test - Send interrupts to host.
41 */
42static int mic_intr_test(struct seq_file *s, void *unused)
43{
44	struct mic_driver *mdrv = s->private;
45	struct mic_device *mdev = &mdrv->mdev;
46
47	mic_send_intr(mdev, 0);
48	msleep(1000);
49	mic_send_intr(mdev, 1);
50	msleep(1000);
51	mic_send_intr(mdev, 2);
52	msleep(1000);
53	mic_send_intr(mdev, 3);
54	msleep(1000);
55
56	return 0;
57}
58
59static int mic_intr_test_open(struct inode *inode, struct file *file)
60{
61	return single_open(file, mic_intr_test, inode->i_private);
62}
63
64static int mic_intr_test_release(struct inode *inode, struct file *file)
65{
66	return single_release(inode, file);
67}
68
69static const struct file_operations intr_test_ops = {
70	.owner   = THIS_MODULE,
71	.open    = mic_intr_test_open,
72	.read    = seq_read,
73	.llseek  = seq_lseek,
74	.release = mic_intr_test_release
75};
76
77/**
78 * mic_create_card_debug_dir - Initialize MIC debugfs entries.
79 */
80void __init mic_create_card_debug_dir(struct mic_driver *mdrv)
81{
82	struct dentry *d;
83
84	if (!mic_dbg)
85		return;
86
87	mdrv->dbg_dir = debugfs_create_dir(mdrv->name, mic_dbg);
88	if (!mdrv->dbg_dir) {
89		dev_err(mdrv->dev, "Cant create dbg_dir %s\n", mdrv->name);
90		return;
91	}
92
93	d = debugfs_create_file("intr_test", 0444, mdrv->dbg_dir,
94		mdrv, &intr_test_ops);
95
96	if (!d) {
97		dev_err(mdrv->dev,
98			"Cant create dbg intr_test %s\n", mdrv->name);
99		return;
100	}
101}
102
103/**
104 * mic_delete_card_debug_dir - Uninitialize MIC debugfs entries.
105 */
106void mic_delete_card_debug_dir(struct mic_driver *mdrv)
107{
108	if (!mdrv->dbg_dir)
109		return;
110
111	debugfs_remove_recursive(mdrv->dbg_dir);
112}
113
114/**
115 * mic_init_card_debugfs - Initialize global debugfs entry.
116 */
117void __init mic_init_card_debugfs(void)
118{
119	mic_dbg = debugfs_create_dir(KBUILD_MODNAME, NULL);
120	if (!mic_dbg)
121		pr_err("can't create debugfs dir\n");
122}
123
124/**
125 * mic_exit_card_debugfs - Uninitialize global debugfs entry
126 */
127void mic_exit_card_debugfs(void)
128{
129	debugfs_remove(mic_dbg);
130}
131