summaryrefslogtreecommitdiff
path: root/drivers/misc/mic/card/mic_debugfs.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/misc/mic/card/mic_debugfs.c')
-rw-r--r--drivers/misc/mic/card/mic_debugfs.c130
1 files changed, 130 insertions, 0 deletions
diff --git a/drivers/misc/mic/card/mic_debugfs.c b/drivers/misc/mic/card/mic_debugfs.c
new file mode 100644
index 000000000000..421b3d7911df
--- /dev/null
+++ b/drivers/misc/mic/card/mic_debugfs.c
@@ -0,0 +1,130 @@
+/*
+ * 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);
+}