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