projects / deliverable / linux.git / blame
| 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> | |
| 5a0e3ad6 | 24 | #include <linux/slab.h> |
| 5638e4d9 SH |
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 | ||
| 33b9e162 | 36 | static const struct usb_device_id id_table[] = { |
| 5638e4d9 SH |
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); | |
| 0cc5e2e7 | 62 | int temp, retval, old; |
| 5638e4d9 SH |
63 | |
| 64 | temp = simple_strtoul(buf, NULL, 10); | |
| 65 | if (temp > 255) | |
| 66 | temp = 255; | |
| 67 | else if (temp < 0) | |
| 68 | temp = 0; | |
| 0cc5e2e7 | 69 | old = tv->speed; |
| 5638e4d9 SH |
70 | tv->speed = temp; |
| 71 | ||
| 72 | dev_dbg(&tv->udev->dev, "speed = %d\n", tv->speed); | |
| 73 | ||
| 74 | /* Set speed */ | |
| 75 | retval = usb_control_msg(tv->udev, usb_sndctrlpipe(tv->udev, 0), | |
| 76 | 0x01, /* vendor request: set speed */ | |
| 77 | USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER, | |
| 78 | tv->speed, /* speed value */ | |
| 79 | 0, NULL, 0, USB_CTRL_GET_TIMEOUT); | |
| 80 | if (retval) { | |
| 0cc5e2e7 | 81 | tv->speed = old; |
| 5638e4d9 SH |
82 | dev_dbg(&tv->udev->dev, "retval = %d\n", retval); |
| 83 | return retval; | |
| 84 | } | |
| 85 | return count; | |
| 86 | } | |
| 87 | ||
| d489a4b3 | 88 | static DEVICE_ATTR(speed, S_IRUGO | S_IWUSR, show_speed, set_speed); |
| 5638e4d9 SH |
89 | |
| 90 | static int tv_probe(struct usb_interface *interface, | |
| 91 | const struct usb_device_id *id) | |
| 92 | { | |
| 93 | struct usb_device *udev = interface_to_usbdev(interface); | |
| 94 | struct trancevibrator *dev; | |
| 95 | int retval; | |
| 96 | ||
| 97 | dev = kzalloc(sizeof(struct trancevibrator), GFP_KERNEL); | |
| 58e61402 | 98 | if (!dev) { |
| 5638e4d9 SH |
99 | retval = -ENOMEM; |
| 100 | goto error; | |
| 101 | } | |
| 102 | ||
| 103 | dev->udev = usb_get_dev(udev); | |
| 104 | usb_set_intfdata(interface, dev); | |
| 105 | retval = device_create_file(&interface->dev, &dev_attr_speed); | |
| 106 | if (retval) | |
| 107 | goto error_create_file; | |
| 108 | ||
| 109 | return 0; | |
| 110 | ||
| 111 | error_create_file: | |
| 112 | usb_put_dev(udev); | |
| 113 | usb_set_intfdata(interface, NULL); | |
| 114 | error: | |
| 115 | kfree(dev); | |
| 116 | return retval; | |
| 117 | } | |
| 118 | ||
| 119 | static void tv_disconnect(struct usb_interface *interface) | |
| 120 | { | |
| 121 | struct trancevibrator *dev; | |
| 122 | ||
| 123 | dev = usb_get_intfdata (interface); | |
| 5638e4d9 | 124 | device_remove_file(&interface->dev, &dev_attr_speed); |
| 96ca014d | 125 | usb_set_intfdata(interface, NULL); |
| 5638e4d9 SH |
126 | usb_put_dev(dev->udev); |
| 127 | kfree(dev); | |
| 128 | } | |
| 129 | ||
| 130 | /* USB subsystem object */ | |
| 131 | static struct usb_driver tv_driver = { | |
| 132 | .name = "trancevibrator", | |
| 133 | .probe = tv_probe, | |
| 134 | .disconnect = tv_disconnect, | |
| 135 | .id_table = id_table, | |
| 136 | }; | |
| 137 | ||
| 65db4305 | 138 | module_usb_driver(tv_driver); |
| 5638e4d9 SH |
139 | |
| 140 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
| 141 | MODULE_DESCRIPTION(DRIVER_DESC); | |
| 142 | MODULE_LICENSE("GPL"); |