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}