blob: 67e2fc20eeeb29d8381dddea4588318630725273 [file] [log] [blame]
Sam Hocevar5638e4d2006-08-30 02:34:56 +02001/*
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
36static struct usb_device_id id_table [] = {
37 { USB_DEVICE(TRANCEVIBRATOR_VENDOR_ID, TRANCEVIBRATOR_PRODUCT_ID) },
38 { },
39};
40MODULE_DEVICE_TABLE (usb, id_table);
41
42/* Driver-local specific stuff */
43struct trancevibrator {
44 struct usb_device *udev;
45 unsigned int speed;
46};
47
48static 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
57static 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
86static DEVICE_ATTR(speed, S_IWUGO | S_IRUGO, show_speed, set_speed);
87
88static 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
110error_create_file:
111 usb_put_dev(udev);
112 usb_set_intfdata(interface, NULL);
113error:
114 kfree(dev);
115 return retval;
116}
117
118static void tv_disconnect(struct usb_interface *interface)
119{
120 struct trancevibrator *dev;
121
122 dev = usb_get_intfdata (interface);
Sam Hocevar5638e4d2006-08-30 02:34:56 +0200123 device_remove_file(&interface->dev, &dev_attr_speed);
Oliver Neukum96ca0142006-11-24 12:55:59 +0100124 usb_set_intfdata(interface, NULL);
Sam Hocevar5638e4d2006-08-30 02:34:56 +0200125 usb_put_dev(dev->udev);
126 kfree(dev);
127}
128
129/* USB subsystem object */
130static struct usb_driver tv_driver = {
131 .name = "trancevibrator",
132 .probe = tv_probe,
133 .disconnect = tv_disconnect,
134 .id_table = id_table,
135};
136
137static 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
149static void __exit tv_exit(void)
150{
151 usb_deregister(&tv_driver);
152}
153
154module_init (tv_init);
155module_exit (tv_exit);
156
157MODULE_AUTHOR(DRIVER_AUTHOR);
158MODULE_DESCRIPTION(DRIVER_DESC);
159MODULE_LICENSE("GPL");