[linux-2.6-block.git] / drivers / usb / wusbcore / dev-sysfs.c

/*
 * WUSB devices
 * sysfs bindings
 *
 * Copyright (C) 2007 Intel Corporation
 * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 *
 *
 * Get them out of the way...
 */

#include <linux/jiffies.h>
#include <linux/ctype.h>
#include <linux/workqueue.h>
#include "wusbhc.h"

#undef D_LOCAL
#define D_LOCAL 4
#include <linux/uwb/debug.h>

static ssize_t wusb_disconnect_store(struct device *dev,
				     struct device_attribute *attr,
				     const char *buf, size_t size)
{
	struct usb_device *usb_dev;
	struct wusbhc *wusbhc;
	unsigned command;
	u8 port_idx;

	if (sscanf(buf, "%u", &command) != 1)
		return -EINVAL;
	if (command == 0)
		return size;
	usb_dev = to_usb_device(dev);
	wusbhc = wusbhc_get_by_usb_dev(usb_dev);
	if (wusbhc == NULL)
		return -ENODEV;

	mutex_lock(&wusbhc->mutex);
	port_idx = wusb_port_no_to_idx(usb_dev->portnum);
	__wusbhc_dev_disable(wusbhc, port_idx);
	mutex_unlock(&wusbhc->mutex);
	wusbhc_put(wusbhc);
	return size;
}
static DEVICE_ATTR(wusb_disconnect, 0200, NULL, wusb_disconnect_store);

static ssize_t wusb_cdid_show(struct device *dev,
			      struct device_attribute *attr, char *buf)
{
	ssize_t result;
	struct wusb_dev *wusb_dev;

	wusb_dev = wusb_dev_get_by_usb_dev(to_usb_device(dev));
	if (wusb_dev == NULL)
		return -ENODEV;
	result = ckhdid_printf(buf, PAGE_SIZE, &wusb_dev->cdid);
	strcat(buf, "\n");
	wusb_dev_put(wusb_dev);
	return result + 1;
}
static DEVICE_ATTR(wusb_cdid, 0444, wusb_cdid_show, NULL);

static ssize_t wusb_ck_store(struct device *dev,
			     struct device_attribute *attr,
			     const char *buf, size_t size)
{
	int result;
	struct usb_device *usb_dev;
	struct wusbhc *wusbhc;
	struct wusb_ckhdid ck;

	result = sscanf(buf,
			"%02hhx %02hhx %02hhx %02hhx "
			"%02hhx %02hhx %02hhx %02hhx "
			"%02hhx %02hhx %02hhx %02hhx "
			"%02hhx %02hhx %02hhx %02hhx\n",
			&ck.data[0] , &ck.data[1],
			&ck.data[2] , &ck.data[3],
			&ck.data[4] , &ck.data[5],
			&ck.data[6] , &ck.data[7],
			&ck.data[8] , &ck.data[9],
			&ck.data[10], &ck.data[11],
			&ck.data[12], &ck.data[13],
			&ck.data[14], &ck.data[15]);
	if (result != 16)
		return -EINVAL;

	usb_dev = to_usb_device(dev);
	wusbhc = wusbhc_get_by_usb_dev(usb_dev);
	if (wusbhc == NULL)
		return -ENODEV;
	result = wusb_dev_4way_handshake(wusbhc, usb_dev->wusb_dev, &ck);
	memset(&ck, 0, sizeof(ck));
	wusbhc_put(wusbhc);
	return result < 0 ? result : size;
}
static DEVICE_ATTR(wusb_ck, 0200, NULL, wusb_ck_store);

static struct attribute *wusb_dev_attrs[] = {
		&dev_attr_wusb_disconnect.attr,
		&dev_attr_wusb_cdid.attr,
		&dev_attr_wusb_ck.attr,
		NULL,
};

static struct attribute_group wusb_dev_attr_group = {
	.name = NULL,	/* we want them in the same directory */
	.attrs = wusb_dev_attrs,
};

int wusb_dev_sysfs_add(struct wusbhc *wusbhc, struct usb_device *usb_dev,
		       struct wusb_dev *wusb_dev)
{
	int result = sysfs_create_group(&usb_dev->dev.kobj,
					&wusb_dev_attr_group);
	struct device *dev = &usb_dev->dev;
	if (result < 0)
		dev_err(dev, "Cannot register WUSB-dev attributes: %d\n",
			result);
	return result;
}

void wusb_dev_sysfs_rm(struct wusb_dev *wusb_dev)
{
	struct usb_device *usb_dev = wusb_dev->usb_dev;
	if (usb_dev)
		sysfs_remove_group(&usb_dev->dev.kobj, &wusb_dev_attr_group);
}
Commit	Line	Data
90ff96f2 IPG	1	/*
	2	* WUSB devices
	3	* sysfs bindings
	4	*
	5	* Copyright (C) 2007 Intel Corporation
	6	* Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License version
	10	* 2 as published by the Free Software Foundation.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
	20	* 02110-1301, USA.
	21	*
	22	*
	23	* Get them out of the way...
	24	*/
	25
	26	#include <linux/jiffies.h>
	27	#include <linux/ctype.h>
	28	#include <linux/workqueue.h>
	29	#include "wusbhc.h"
	30
	31	#undef D_LOCAL
	32	#define D_LOCAL 4
	33	#include <linux/uwb/debug.h>
	34
	35	static ssize_t wusb_disconnect_store(struct device *dev,
	36	struct device_attribute *attr,
	37	const char *buf, size_t size)
	38	{
	39	struct usb_device *usb_dev;
	40	struct wusbhc *wusbhc;
	41	unsigned command;
	42	u8 port_idx;
	43
	44	if (sscanf(buf, "%u", &command) != 1)
	45	return -EINVAL;
	46	if (command == 0)
	47	return size;
	48	usb_dev = to_usb_device(dev);
	49	wusbhc = wusbhc_get_by_usb_dev(usb_dev);
	50	if (wusbhc == NULL)
	51	return -ENODEV;
	52
	53	mutex_lock(&wusbhc->mutex);
	54	port_idx = wusb_port_no_to_idx(usb_dev->portnum);
	55	__wusbhc_dev_disable(wusbhc, port_idx);
	56	mutex_unlock(&wusbhc->mutex);
	57	wusbhc_put(wusbhc);
	58	return size;
	59	}
	60	static DEVICE_ATTR(wusb_disconnect, 0200, NULL, wusb_disconnect_store);
	61
	62	static ssize_t wusb_cdid_show(struct device *dev,
	63	struct device_attribute attr, char buf)
	64	{
65	ssize_t result;
66	struct wusb_dev *wusb_dev;
67
68	wusb_dev = wusb_dev_get_by_usb_dev(to_usb_device(dev));
69	if (wusb_dev == NULL)
70	return -ENODEV;
71	result = ckhdid_printf(buf, PAGE_SIZE, &wusb_dev->cdid);
72	strcat(buf, "\n");
73	wusb_dev_put(wusb_dev);
74	return result + 1;
75	}
76	static DEVICE_ATTR(wusb_cdid, 0444, wusb_cdid_show, NULL);
77
78	static ssize_t wusb_ck_store(struct device *dev,
79	struct device_attribute *attr,
80	const char *buf, size_t size)
81	{
82	int result;
83	struct usb_device *usb_dev;
84	struct wusbhc *wusbhc;
85	struct wusb_ckhdid ck;
86
87	result = sscanf(buf,
88	"%02hhx %02hhx %02hhx %02hhx "
89	"%02hhx %02hhx %02hhx %02hhx "
90	"%02hhx %02hhx %02hhx %02hhx "
91	"%02hhx %02hhx %02hhx %02hhx\n",
92	&ck.data[0] , &ck.data[1],
93	&ck.data[2] , &ck.data[3],
94	&ck.data[4] , &ck.data[5],
95	&ck.data[6] , &ck.data[7],
96	&ck.data[8] , &ck.data[9],
97	&ck.data[10], &ck.data[11],
98	&ck.data[12], &ck.data[13],
99	&ck.data[14], &ck.data[15]);
100	if (result != 16)
101	return -EINVAL;
102
103	usb_dev = to_usb_device(dev);
104	wusbhc = wusbhc_get_by_usb_dev(usb_dev);
105	if (wusbhc == NULL)
106	return -ENODEV;
107	result = wusb_dev_4way_handshake(wusbhc, usb_dev->wusb_dev, &ck);
108	memset(&ck, 0, sizeof(ck));
109	wusbhc_put(wusbhc);
110	return result < 0 ? result : size;
111	}
112	static DEVICE_ATTR(wusb_ck, 0200, NULL, wusb_ck_store);
113
114	static struct attribute *wusb_dev_attrs[] = {
115	&dev_attr_wusb_disconnect.attr,
116	&dev_attr_wusb_cdid.attr,
117	&dev_attr_wusb_ck.attr,
118	NULL,
119	};
120
121	static struct attribute_group wusb_dev_attr_group = {
122	.name = NULL, /* we want them in the same directory */
123	.attrs = wusb_dev_attrs,
124	};
125
126	int wusb_dev_sysfs_add(struct wusbhc wusbhc, struct usb_device usb_dev,
127	struct wusb_dev *wusb_dev)
128	{
129	int result = sysfs_create_group(&usb_dev->dev.kobj,
130	&wusb_dev_attr_group);
131	struct device *dev = &usb_dev->dev;
132	if (result < 0)
133	dev_err(dev, "Cannot register WUSB-dev attributes: %d\n",
134	result);
135	return result;
136	}
137
138	void wusb_dev_sysfs_rm(struct wusb_dev *wusb_dev)
139	{
140	struct usb_device *usb_dev = wusb_dev->usb_dev;
141	if (usb_dev)
142	sysfs_remove_group(&usb_dev->dev.kobj, &wusb_dev_attr_group);
143	}