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USB: add PlayStation 2 Trance Vibrator driver
This patch is a driver for the PlayStation 2 specific Trance Vibrator device. The only thing that device can do is vibrate at various speeds. Signed-off-by: Sam Hocevar <[email protected]> Cc: Pete Zaitcev <[email protected]> Cc: Luiz Fernando N. Capitulino" <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,159 @@ | ||
| /* | ||
| * PlayStation 2 Trance Vibrator driver | ||
| * | ||
| * Copyright (C) 2006 Sam Hocevar <[email protected]> | ||
| * | ||
| * 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, [email protected]" | ||
| #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); | ||
|
|
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| return sprintf(buf, "%d\n", tv->speed); | ||
| } | ||
|
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| 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; | ||
|
|
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| dev_dbg(&tv->udev->dev, "speed = %d\n", tv->speed); | ||
|
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| /* 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; | ||
| } | ||
|
|
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| static DEVICE_ATTR(speed, S_IWUGO | S_IRUGO, show_speed, set_speed); | ||
|
|
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| 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; | ||
| } | ||
|
|
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| 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; | ||
|
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||
| return 0; | ||
|
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| error_create_file: | ||
| usb_put_dev(udev); | ||
| usb_set_intfdata(interface, NULL); | ||
| error: | ||
| kfree(dev); | ||
| return retval; | ||
| } | ||
|
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| static void tv_disconnect(struct usb_interface *interface) | ||
| { | ||
| struct trancevibrator *dev; | ||
|
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| 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); | ||
| } | ||
|
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| /* USB subsystem object */ | ||
| static struct usb_driver tv_driver = { | ||
| .name = "trancevibrator", | ||
| .probe = tv_probe, | ||
| .disconnect = tv_disconnect, | ||
| .id_table = id_table, | ||
| }; | ||
|
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| static int __init tv_init(void) | ||
| { | ||
| int retval = usb_register(&tv_driver); | ||
| if (retval) { | ||
| err("usb_register failed. Error number %d", retval); | ||
| return retval; | ||
| } | ||
|
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| info(DRIVER_VERSION ":" DRIVER_DESC); | ||
| return 0; | ||
| } | ||
|
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| static void __exit tv_exit(void) | ||
| { | ||
| usb_deregister(&tv_driver); | ||
| } | ||
|
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| module_init (tv_init); | ||
| module_exit (tv_exit); | ||
|
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| MODULE_AUTHOR(DRIVER_AUTHOR); | ||
| MODULE_DESCRIPTION(DRIVER_DESC); | ||
| MODULE_LICENSE("GPL"); |