[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / usb / input / trancevibrator.c

/*
 * PlayStation 2 Trance Vibrator driver
 *
 * Copyright (C) 2006 Sam Hocevar <sam@zoy.org>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

/* Standard include files */
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/usb.h>

/* Version Information */
#define DRIVER_VERSION "v1.1"
#define DRIVER_AUTHOR "Sam Hocevar, sam@zoy.org"
#define DRIVER_DESC "PlayStation 2 Trance Vibrator driver"

#define TRANCEVIBRATOR_VENDOR_ID	0x0b49	/* ASCII Corporation */
#define TRANCEVIBRATOR_PRODUCT_ID	0x064f	/* Trance Vibrator */

static struct usb_device_id id_table [] = {
	{ USB_DEVICE(TRANCEVIBRATOR_VENDOR_ID, TRANCEVIBRATOR_PRODUCT_ID) },
	{ },
};
MODULE_DEVICE_TABLE (usb, id_table);

/* Driver-local specific stuff */
struct trancevibrator {
	struct usb_device *udev;
	unsigned int speed;
};

static ssize_t show_speed(struct device *dev, struct device_attribute *attr,
			  char *buf)
{
	struct usb_interface *intf = to_usb_interface(dev);
	struct trancevibrator *tv = usb_get_intfdata(intf);

	return sprintf(buf, "%d\n", tv->speed);
}

static ssize_t set_speed(struct device *dev, struct device_attribute *attr,
			 const char *buf, size_t count)
{
	struct usb_interface *intf = to_usb_interface(dev);
	struct trancevibrator *tv = usb_get_intfdata(intf);
	int temp, retval;

	temp = simple_strtoul(buf, NULL, 10);
	if (temp > 255)
		temp = 255;
	else if (temp < 0)
		temp = 0;
	tv->speed = temp;

	dev_dbg(&tv->udev->dev, "speed = %d\n", tv->speed);

	/* Set speed */
	retval = usb_control_msg(tv->udev, usb_sndctrlpipe(tv->udev, 0),
				 0x01, /* vendor request: set speed */
				 USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER,
				 tv->speed, /* speed value */
				 0, NULL, 0, USB_CTRL_GET_TIMEOUT);
	if (retval) {
		dev_dbg(&tv->udev->dev, "retval = %d\n", retval);
		return retval;
	}
	return count;
}

static DEVICE_ATTR(speed, S_IWUGO | S_IRUGO, show_speed, set_speed);

static int tv_probe(struct usb_interface *interface,
		    const struct usb_device_id *id)
{
	struct usb_device *udev = interface_to_usbdev(interface);
	struct trancevibrator *dev;
	int retval;

	dev = kzalloc(sizeof(struct trancevibrator), GFP_KERNEL);
	if (dev == NULL) {
		dev_err(&interface->dev, "Out of memory\n");
		retval = -ENOMEM;
		goto error;
	}

	dev->udev = usb_get_dev(udev);
	usb_set_intfdata(interface, dev);
	retval = device_create_file(&interface->dev, &dev_attr_speed);
	if (retval)
		goto error_create_file;

	return 0;

error_create_file:
	usb_put_dev(udev);
	usb_set_intfdata(interface, NULL);
error:
	kfree(dev);
	return retval;
}

static void tv_disconnect(struct usb_interface *interface)
{
	struct trancevibrator *dev;

	dev = usb_get_intfdata (interface);
	usb_set_intfdata(interface, NULL);
	device_remove_file(&interface->dev, &dev_attr_speed);
	usb_put_dev(dev->udev);
	kfree(dev);
}

/* USB subsystem object */
static struct usb_driver tv_driver = {
	.name =		"trancevibrator",
	.probe =	tv_probe,
	.disconnect =	tv_disconnect,
	.id_table =	id_table,
};

static int __init tv_init(void)
{
	int retval = usb_register(&tv_driver);
	if (retval) {
		err("usb_register failed. Error number %d", retval);
		return retval;
	}

	info(DRIVER_VERSION ":" DRIVER_DESC);
	return 0;
}

static void __exit tv_exit(void)
{
	usb_deregister(&tv_driver);
}

module_init (tv_init);
module_exit (tv_exit);

MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
Commit	Line	Data
5638e4d9 SH	1	/*
	2	* PlayStation 2 Trance Vibrator driver
	3	*
	4	* Copyright (C) 2006 Sam Hocevar <sam@zoy.org>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	19	*/
	20
	21	/* Standard include files */
	22	#include <linux/kernel.h>
	23	#include <linux/errno.h>
	24	#include <linux/init.h>
	25	#include <linux/module.h>
	26	#include <linux/usb.h>
	27
	28	/* Version Information */
	29	#define DRIVER_VERSION "v1.1"
	30	#define DRIVER_AUTHOR "Sam Hocevar, sam@zoy.org"
	31	#define DRIVER_DESC "PlayStation 2 Trance Vibrator driver"
	32
	33	#define TRANCEVIBRATOR_VENDOR_ID 0x0b49 /* ASCII Corporation */
	34	#define TRANCEVIBRATOR_PRODUCT_ID 0x064f /* Trance Vibrator */
	35
	36	static struct usb_device_id id_table [] = {
	37	{ USB_DEVICE(TRANCEVIBRATOR_VENDOR_ID, TRANCEVIBRATOR_PRODUCT_ID) },
	38	{ },
	39	};
	40	MODULE_DEVICE_TABLE (usb, id_table);
	41
	42	/* Driver-local specific stuff */
	43	struct trancevibrator {
	44	struct usb_device *udev;
	45	unsigned int speed;
	46	};
	47
	48	static ssize_t show_speed(struct device dev, struct device_attribute attr,
	49	char *buf)
	50	{
	51	struct usb_interface *intf = to_usb_interface(dev);
	52	struct trancevibrator *tv = usb_get_intfdata(intf);
	53
	54	return sprintf(buf, "%d\n", tv->speed);
	55	}
	56
	57	static ssize_t set_speed(struct device dev, struct device_attribute attr,
	58	const char *buf, size_t count)
	59	{
	60	struct usb_interface *intf = to_usb_interface(dev);
	61	struct trancevibrator *tv = usb_get_intfdata(intf);
	62	int temp, retval;
	63
	64	temp = simple_strtoul(buf, NULL, 10);
65	if (temp > 255)
66	temp = 255;
67	else if (temp < 0)
68	temp = 0;
69	tv->speed = temp;
70
71	dev_dbg(&tv->udev->dev, "speed = %d\n", tv->speed);
72
73	/* Set speed */
74	retval = usb_control_msg(tv->udev, usb_sndctrlpipe(tv->udev, 0),
75	0x01, /* vendor request: set speed */
76	USB_DIR_IN \| USB_TYPE_VENDOR \| USB_RECIP_OTHER,
77	tv->speed, /* speed value */
78	0, NULL, 0, USB_CTRL_GET_TIMEOUT);
79	if (retval) {
80	dev_dbg(&tv->udev->dev, "retval = %d\n", retval);
81	return retval;
82	}
83	return count;
84	}
85
86	static DEVICE_ATTR(speed, S_IWUGO \| S_IRUGO, show_speed, set_speed);
87
88	static int tv_probe(struct usb_interface *interface,
89	const struct usb_device_id *id)
90	{
91	struct usb_device *udev = interface_to_usbdev(interface);
92	struct trancevibrator *dev;
93	int retval;
94
95	dev = kzalloc(sizeof(struct trancevibrator), GFP_KERNEL);
96	if (dev == NULL) {
97	dev_err(&interface->dev, "Out of memory\n");
98	retval = -ENOMEM;
99	goto error;
100	}
101
102	dev->udev = usb_get_dev(udev);
103	usb_set_intfdata(interface, dev);
104	retval = device_create_file(&interface->dev, &dev_attr_speed);
105	if (retval)
106	goto error_create_file;
107
108	return 0;
109
110	error_create_file:
111	usb_put_dev(udev);
112	usb_set_intfdata(interface, NULL);
113	error:
114	kfree(dev);
115	return retval;
116	}
117
118	static void tv_disconnect(struct usb_interface *interface)
119	{
120	struct trancevibrator *dev;
121
122	dev = usb_get_intfdata (interface);
123	usb_set_intfdata(interface, NULL);
124	device_remove_file(&interface->dev, &dev_attr_speed);
125	usb_put_dev(dev->udev);
126	kfree(dev);
127	}
128
129	/* USB subsystem object */
130	static struct usb_driver tv_driver = {
131	.name = "trancevibrator",
132	.probe = tv_probe,
133	.disconnect = tv_disconnect,
134	.id_table = id_table,
135	};
136
137	static int __init tv_init(void)
138	{
139	int retval = usb_register(&tv_driver);
140	if (retval) {
141	err("usb_register failed. Error number %d", retval);
142	return retval;
143	}
144
145	info(DRIVER_VERSION ":" DRIVER_DESC);
146	return 0;
147	}
148
149	static void __exit tv_exit(void)
150	{
151	usb_deregister(&tv_driver);
152	}
153
154	module_init (tv_init);
155	module_exit (tv_exit);
156
157	MODULE_AUTHOR(DRIVER_AUTHOR);
158	MODULE_DESCRIPTION(DRIVER_DESC);
159	MODULE_LICENSE("GPL");