diff options
Diffstat (limited to 'drivers/misc/mic/card/mic_debugfs.c')
| -rw-r--r-- | drivers/misc/mic/card/mic_debugfs.c | 130 | 
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 00000000000..421b3d7911d --- /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); +}  | 
