[mirror_ubuntu-artful-kernel.git] / drivers / bluetooth / btmrvl_debugfs.c

/**
 * Marvell Bluetooth driver: debugfs related functions
 *
 * Copyright (C) 2009, Marvell International Ltd.
 *
 * This software file (the "File") is distributed by Marvell International
 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
 * (the "License").  You may use, redistribute and/or modify this File in
 * accordance with the terms and conditions of the License, a copy of which
 * is available by writing to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
 *
 *
 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
 * ARE EXPRESSLY DISCLAIMED.  The License provides additional details about
 * this warranty disclaimer.
 **/

#include <linux/debugfs.h>
#include <linux/slab.h>

#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>

#include "btmrvl_drv.h"

struct btmrvl_debugfs_data {
	struct dentry *config_dir;
	struct dentry *status_dir;
};

static ssize_t btmrvl_hscfgcmd_write(struct file *file,
			const char __user *ubuf, size_t count, loff_t *ppos)
{
	struct btmrvl_private *priv = file->private_data;
	char buf[16];
	long result, ret;

	memset(buf, 0, sizeof(buf));

	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
		return -EFAULT;

	ret = kstrtol(buf, 10, &result);
	if (ret)
		return ret;

	priv->btmrvl_dev.hscfgcmd = result;

	if (priv->btmrvl_dev.hscfgcmd) {
		btmrvl_prepare_command(priv);
		wake_up_interruptible(&priv->main_thread.wait_q);
	}

	return count;
}

static ssize_t btmrvl_hscfgcmd_read(struct file *file, char __user *userbuf,
						size_t count, loff_t *ppos)
{
	struct btmrvl_private *priv = file->private_data;
	char buf[16];
	int ret;

	ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
						priv->btmrvl_dev.hscfgcmd);

	return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
}

static const struct file_operations btmrvl_hscfgcmd_fops = {
	.read	= btmrvl_hscfgcmd_read,
	.write	= btmrvl_hscfgcmd_write,
	.open	= simple_open,
	.llseek = default_llseek,
};

static ssize_t btmrvl_pscmd_write(struct file *file, const char __user *ubuf,
						size_t count, loff_t *ppos)
{
	struct btmrvl_private *priv = file->private_data;
	char buf[16];
	long result, ret;

	memset(buf, 0, sizeof(buf));

	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
		return -EFAULT;

	ret = kstrtol(buf, 10, &result);
	if (ret)
		return ret;

	priv->btmrvl_dev.pscmd = result;

	if (priv->btmrvl_dev.pscmd) {
		btmrvl_prepare_command(priv);
		wake_up_interruptible(&priv->main_thread.wait_q);
	}

	return count;

}

static ssize_t btmrvl_pscmd_read(struct file *file, char __user *userbuf,
						size_t count, loff_t *ppos)
{
	struct btmrvl_private *priv = file->private_data;
	char buf[16];
	int ret;

	ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.pscmd);

	return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
}

static const struct file_operations btmrvl_pscmd_fops = {
	.read = btmrvl_pscmd_read,
	.write = btmrvl_pscmd_write,
	.open = simple_open,
	.llseek = default_llseek,
};

static ssize_t btmrvl_hscmd_write(struct file *file, const char __user *ubuf,
						size_t count, loff_t *ppos)
{
	struct btmrvl_private *priv = file->private_data;
	char buf[16];
	long result, ret;

	memset(buf, 0, sizeof(buf));

	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
		return -EFAULT;

	ret = kstrtol(buf, 10, &result);
	if (ret)
		return ret;

	priv->btmrvl_dev.hscmd = result;
	if (priv->btmrvl_dev.hscmd) {
		btmrvl_prepare_command(priv);
		wake_up_interruptible(&priv->main_thread.wait_q);
	}

	return count;
}

static ssize_t btmrvl_hscmd_read(struct file *file, char __user *userbuf,
						size_t count, loff_t *ppos)
{
	struct btmrvl_private *priv = file->private_data;
	char buf[16];
	int ret;

	ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hscmd);

	return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
}

static const struct file_operations btmrvl_hscmd_fops = {
	.read	= btmrvl_hscmd_read,
	.write	= btmrvl_hscmd_write,
	.open	= simple_open,
	.llseek = default_llseek,
};

static ssize_t btmrvl_fwdump_write(struct file *file, const char __user *ubuf,
				   size_t count, loff_t *ppos)
{
	struct btmrvl_private *priv = file->private_data;
	char buf[16];
	bool result;

	memset(buf, 0, sizeof(buf));

	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
		return -EFAULT;

	if (strtobool(buf, &result))
		return -EINVAL;

	if (!result)
		return -EINVAL;

	btmrvl_firmware_dump(priv);

	return count;
}

static const struct file_operations btmrvl_fwdump_fops = {
	.write	= btmrvl_fwdump_write,
	.open	= simple_open,
	.llseek = default_llseek,
};

void btmrvl_debugfs_init(struct hci_dev *hdev)
{
	struct btmrvl_private *priv = hci_get_drvdata(hdev);
	struct btmrvl_debugfs_data *dbg;

	if (!hdev->debugfs)
		return;

	dbg = kzalloc(sizeof(*dbg), GFP_KERNEL);
	priv->debugfs_data = dbg;

	if (!dbg) {
		BT_ERR("Can not allocate memory for btmrvl_debugfs_data.");
		return;
	}

	dbg->config_dir = debugfs_create_dir("config", hdev->debugfs);

	debugfs_create_u8("psmode", 0644, dbg->config_dir,
			  &priv->btmrvl_dev.psmode);
	debugfs_create_file("pscmd", 0644, dbg->config_dir,
			    priv, &btmrvl_pscmd_fops);
	debugfs_create_x16("gpiogap", 0644, dbg->config_dir,
			   &priv->btmrvl_dev.gpio_gap);
	debugfs_create_u8("hsmode", 0644, dbg->config_dir,
			  &priv->btmrvl_dev.hsmode);
	debugfs_create_file("hscmd", 0644, dbg->config_dir,
			    priv, &btmrvl_hscmd_fops);
	debugfs_create_file("hscfgcmd", 0644, dbg->config_dir,
			    priv, &btmrvl_hscfgcmd_fops);
	debugfs_create_file("fw_dump", 0200, dbg->config_dir,
			    priv, &btmrvl_fwdump_fops);

	dbg->status_dir = debugfs_create_dir("status", hdev->debugfs);
	debugfs_create_u8("curpsmode", 0444, dbg->status_dir,
			  &priv->adapter->psmode);
	debugfs_create_u8("psstate", 0444, dbg->status_dir,
			  &priv->adapter->ps_state);
	debugfs_create_u8("hsstate", 0444, dbg->status_dir,
			  &priv->adapter->hs_state);
	debugfs_create_u8("txdnldready", 0444, dbg->status_dir,
			  &priv->btmrvl_dev.tx_dnld_rdy);
}

void btmrvl_debugfs_remove(struct hci_dev *hdev)
{
	struct btmrvl_private *priv = hci_get_drvdata(hdev);
	struct btmrvl_debugfs_data *dbg = priv->debugfs_data;

	if (!dbg)
		return;

	debugfs_remove_recursive(dbg->config_dir);
	debugfs_remove_recursive(dbg->status_dir);

	kfree(dbg);
}
Commit	Line	Data
fb784f05 BZ	1	/**
	2	* Marvell Bluetooth driver: debugfs related functions
	3	*
	4	* Copyright (C) 2009, Marvell International Ltd.
	5	*
	6	* This software file (the "File") is distributed by Marvell International
	7	* Ltd. under the terms of the GNU General Public License Version 2, June 1991
	8	* (the "License"). You may use, redistribute and/or modify this File in
	9	* accordance with the terms and conditions of the License, a copy of which
	10	* is available by writing to the Free Software Foundation, Inc.,
	11	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
	12	* worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
	13	*
	14	*
	15	* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
	16	* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
	17	* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
	18	* this warranty disclaimer.
	19	**/
	20
	21	#include <linux/debugfs.h>
5a0e3ad6	22	#include <linux/slab.h>
fb784f05 BZ	23
	24	#include <net/bluetooth/bluetooth.h>
	25	#include <net/bluetooth/hci_core.h>
	26
	27	#include "btmrvl_drv.h"
	28
	29	struct btmrvl_debugfs_data {
b914a250 MH	30	struct dentry *config_dir;
b914a250 MH	31	struct dentry *status_dir;
fb784f05 BZ	32	};
fb784f05 BZ	33
fb784f05	34	static ssize_t btmrvl_hscfgcmd_write(struct file *file,
54239903	35	const char __user ubuf, size_t count, loff_t ppos)
fb784f05	36	{
54239903	37	struct btmrvl_private *priv = file->private_data;
fb784f05	38	char buf[16];
54239903	39	long result, ret;
fb784f05 BZ	40
	41	memset(buf, 0, sizeof(buf));
	42
54239903	43	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
fb784f05 BZ	44	return -EFAULT;
fb784f05 BZ	45
473c1317	46	ret = kstrtol(buf, 10, &result);
26e7acf3 DM	47	if (ret)
26e7acf3 DM	48	return ret;
fb784f05 BZ	49
	50	priv->btmrvl_dev.hscfgcmd = result;
	51
	52	if (priv->btmrvl_dev.hscfgcmd) {
	53	btmrvl_prepare_command(priv);
	54	wake_up_interruptible(&priv->main_thread.wait_q);
	55	}
	56
	57	return count;
	58	}
	59
54239903 MH	60	static ssize_t btmrvl_hscfgcmd_read(struct file file, char __user userbuf,
54239903 MH	61	size_t count, loff_t *ppos)
fb784f05	62	{
54239903	63	struct btmrvl_private *priv = file->private_data;
fb784f05	64	char buf[16];
54239903	65	int ret;
fb784f05 BZ	66
fb784f05 BZ	67	ret = snprintf(buf, sizeof(buf) - 1, "%d\n",
54239903	68	priv->btmrvl_dev.hscfgcmd);
fb784f05 BZ	69
	70	return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
	71	}
	72
	73	static const struct file_operations btmrvl_hscfgcmd_fops = {
54239903 MH	74	.read = btmrvl_hscfgcmd_read,
54239903 MH	75	.write = btmrvl_hscfgcmd_write,
234e3405	76	.open = simple_open,
6038f373	77	.llseek = default_llseek,
fb784f05 BZ	78	};
fb784f05 BZ	79
fb784f05	80	static ssize_t btmrvl_pscmd_write(struct file file, const char __user ubuf,
54239903	81	size_t count, loff_t *ppos)
fb784f05	82	{
54239903	83	struct btmrvl_private *priv = file->private_data;
fb784f05	84	char buf[16];
54239903	85	long result, ret;
fb784f05 BZ	86
	87	memset(buf, 0, sizeof(buf));
	88
54239903	89	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
fb784f05 BZ	90	return -EFAULT;
fb784f05 BZ	91
473c1317	92	ret = kstrtol(buf, 10, &result);
26e7acf3 DM	93	if (ret)
26e7acf3 DM	94	return ret;
fb784f05 BZ	95
	96	priv->btmrvl_dev.pscmd = result;
	97
	98	if (priv->btmrvl_dev.pscmd) {
	99	btmrvl_prepare_command(priv);
	100	wake_up_interruptible(&priv->main_thread.wait_q);
	101	}
	102
	103	return count;
	104
	105	}
	106
54239903 MH	107	static ssize_t btmrvl_pscmd_read(struct file file, char __user userbuf,
54239903 MH	108	size_t count, loff_t *ppos)
fb784f05	109	{
54239903	110	struct btmrvl_private *priv = file->private_data;
fb784f05	111	char buf[16];
54239903	112	int ret;
fb784f05 BZ	113
	114	ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.pscmd);
	115
	116	return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
	117	}
	118
	119	static const struct file_operations btmrvl_pscmd_fops = {
	120	.read = btmrvl_pscmd_read,
	121	.write = btmrvl_pscmd_write,
234e3405	122	.open = simple_open,
6038f373	123	.llseek = default_llseek,
fb784f05 BZ	124	};
fb784f05 BZ	125
fb784f05	126	static ssize_t btmrvl_hscmd_write(struct file file, const char __user ubuf,
54239903	127	size_t count, loff_t *ppos)
fb784f05	128	{
be60b940	129	struct btmrvl_private *priv = file->private_data;
fb784f05	130	char buf[16];
54239903	131	long result, ret;
fb784f05 BZ	132
	133	memset(buf, 0, sizeof(buf));
	134
54239903	135	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
fb784f05 BZ	136	return -EFAULT;
fb784f05 BZ	137
473c1317	138	ret = kstrtol(buf, 10, &result);
26e7acf3 DM	139	if (ret)
26e7acf3 DM	140	return ret;
fb784f05 BZ	141
	142	priv->btmrvl_dev.hscmd = result;
	143	if (priv->btmrvl_dev.hscmd) {
	144	btmrvl_prepare_command(priv);
	145	wake_up_interruptible(&priv->main_thread.wait_q);
	146	}
	147
	148	return count;
	149	}
	150
54239903 MH	151	static ssize_t btmrvl_hscmd_read(struct file file, char __user userbuf,
54239903 MH	152	size_t count, loff_t *ppos)
fb784f05	153	{
54239903	154	struct btmrvl_private *priv = file->private_data;
fb784f05	155	char buf[16];
54239903	156	int ret;
fb784f05 BZ	157
	158	ret = snprintf(buf, sizeof(buf) - 1, "%d\n", priv->btmrvl_dev.hscmd);
	159
	160	return simple_read_from_buffer(userbuf, count, ppos, buf, ret);
	161	}
	162
	163	static const struct file_operations btmrvl_hscmd_fops = {
54239903 MH	164	.read = btmrvl_hscmd_read,
54239903 MH	165	.write = btmrvl_hscmd_write,
234e3405	166	.open = simple_open,
6038f373	167	.llseek = default_llseek,
fb784f05 BZ	168	};
fb784f05 BZ	169
dc759613 XH	170	static ssize_t btmrvl_fwdump_write(struct file file, const char __user ubuf,
	171	size_t count, loff_t *ppos)
	172	{
	173	struct btmrvl_private *priv = file->private_data;
	174	char buf[16];
	175	bool result;
	176
	177	memset(buf, 0, sizeof(buf));
	178
	179	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
	180	return -EFAULT;
	181
	182	if (strtobool(buf, &result))
	183	return -EINVAL;
	184
	185	if (!result)
	186	return -EINVAL;
	187
	188	btmrvl_firmware_dump(priv);
	189
	190	return count;
	191	}
	192
	193	static const struct file_operations btmrvl_fwdump_fops = {
	194	.write = btmrvl_fwdump_write,
	195	.open = simple_open,
	196	.llseek = default_llseek,
	197	};
	198
fb784f05 BZ	199	void btmrvl_debugfs_init(struct hci_dev *hdev)
fb784f05 BZ	200	{
155961e8	201	struct btmrvl_private *priv = hci_get_drvdata(hdev);
fb784f05 BZ	202	struct btmrvl_debugfs_data *dbg;
fb784f05 BZ	203
b914a250 MH	204	if (!hdev->debugfs)
	205	return;
	206
fb784f05 BZ	207	dbg = kzalloc(sizeof(*dbg), GFP_KERNEL);
	208	priv->debugfs_data = dbg;
	209
	210	if (!dbg) {
	211	BT_ERR("Can not allocate memory for btmrvl_debugfs_data.");
	212	return;
	213	}
	214
b914a250	215	dbg->config_dir = debugfs_create_dir("config", hdev->debugfs);
fb784f05	216
9da226c7 AS	217	debugfs_create_u8("psmode", 0644, dbg->config_dir,
	218	&priv->btmrvl_dev.psmode);
	219	debugfs_create_file("pscmd", 0644, dbg->config_dir,
	220	priv, &btmrvl_pscmd_fops);
	221	debugfs_create_x16("gpiogap", 0644, dbg->config_dir,
	222	&priv->btmrvl_dev.gpio_gap);
	223	debugfs_create_u8("hsmode", 0644, dbg->config_dir,
	224	&priv->btmrvl_dev.hsmode);
	225	debugfs_create_file("hscmd", 0644, dbg->config_dir,
	226	priv, &btmrvl_hscmd_fops);
	227	debugfs_create_file("hscfgcmd", 0644, dbg->config_dir,
	228	priv, &btmrvl_hscfgcmd_fops);
dc759613 XH	229	debugfs_create_file("fw_dump", 0200, dbg->config_dir,
dc759613 XH	230	priv, &btmrvl_fwdump_fops);
fb784f05	231
b914a250	232	dbg->status_dir = debugfs_create_dir("status", hdev->debugfs);
9da226c7 AS	233	debugfs_create_u8("curpsmode", 0444, dbg->status_dir,
	234	&priv->adapter->psmode);
	235	debugfs_create_u8("psstate", 0444, dbg->status_dir,
	236	&priv->adapter->ps_state);
	237	debugfs_create_u8("hsstate", 0444, dbg->status_dir,
	238	&priv->adapter->hs_state);
	239	debugfs_create_u8("txdnldready", 0444, dbg->status_dir,
	240	&priv->btmrvl_dev.tx_dnld_rdy);
fb784f05 BZ	241	}
	242
	243	void btmrvl_debugfs_remove(struct hci_dev *hdev)
	244	{
155961e8	245	struct btmrvl_private *priv = hci_get_drvdata(hdev);
fb784f05 BZ	246	struct btmrvl_debugfs_data *dbg = priv->debugfs_data;
	247
	248	if (!dbg)
	249	return;
	250
9da226c7 AS	251	debugfs_remove_recursive(dbg->config_dir);
9da226c7 AS	252	debugfs_remove_recursive(dbg->status_dir);
fb784f05	253
fb784f05 BZ	254	kfree(dbg);
fb784f05 BZ	255	}