[linux-2.6-block.git] / drivers / usb / misc / trancevibrator.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * PlayStation 2 Trance Vibrator driver
 *
 * Copyright (C) 2006 Sam Hocevar <sam@zoy.org>
 */

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

#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 const 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 speed_show(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 speed_store(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, old;

	temp = simple_strtoul(buf, NULL, 10);
	if (temp > 255)
		temp = 255;
	else if (temp < 0)
		temp = 0;
	old = tv->speed;
	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) {
		tv->speed = old;
		dev_dbg(&tv->udev->dev, "retval = %d\n", retval);
		return retval;
	}
	return count;
}

static DEVICE_ATTR_RW(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) {
		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);
	device_remove_file(&interface->dev, &dev_attr_speed);
	usb_set_intfdata(interface, NULL);
	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,
};

module_usb_driver(tv_driver);

MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
Commit	Line	Data
5fd54ace	1	// SPDX-License-Identifier: GPL-2.0+
5638e4d9 SH	2	/*
	3	* PlayStation 2 Trance Vibrator driver
	4	*
	5	* Copyright (C) 2006 Sam Hocevar <sam@zoy.org>
5638e4d9 SH	6	*/
	7
	8	/* Standard include files */
	9	#include <linux/kernel.h>
	10	#include <linux/errno.h>
5a0e3ad6	11	#include <linux/slab.h>
5638e4d9 SH	12	#include <linux/module.h>
	13	#include <linux/usb.h>
	14
5638e4d9 SH	15	#define DRIVER_AUTHOR "Sam Hocevar, sam@zoy.org"
	16	#define DRIVER_DESC "PlayStation 2 Trance Vibrator driver"
	17
	18	#define TRANCEVIBRATOR_VENDOR_ID 0x0b49 /* ASCII Corporation */
	19	#define TRANCEVIBRATOR_PRODUCT_ID 0x064f /* Trance Vibrator */
	20
33b9e162	21	static const struct usb_device_id id_table[] = {
5638e4d9 SH	22	{ USB_DEVICE(TRANCEVIBRATOR_VENDOR_ID, TRANCEVIBRATOR_PRODUCT_ID) },
	23	{ },
	24	};
	25	MODULE_DEVICE_TABLE (usb, id_table);
	26
	27	/* Driver-local specific stuff */
	28	struct trancevibrator {
	29	struct usb_device *udev;
	30	unsigned int speed;
	31	};
	32
ed5bd7a4	33	static ssize_t speed_show(struct device dev, struct device_attribute attr,
5638e4d9 SH	34	char *buf)
	35	{
	36	struct usb_interface *intf = to_usb_interface(dev);
	37	struct trancevibrator *tv = usb_get_intfdata(intf);
	38
	39	return sprintf(buf, "%d\n", tv->speed);
	40	}
	41
ed5bd7a4	42	static ssize_t speed_store(struct device dev, struct device_attribute attr,
5638e4d9 SH	43	const char *buf, size_t count)
	44	{
	45	struct usb_interface *intf = to_usb_interface(dev);
	46	struct trancevibrator *tv = usb_get_intfdata(intf);
0cc5e2e7	47	int temp, retval, old;
5638e4d9 SH	48
	49	temp = simple_strtoul(buf, NULL, 10);
	50	if (temp > 255)
	51	temp = 255;
	52	else if (temp < 0)
	53	temp = 0;
0cc5e2e7	54	old = tv->speed;
5638e4d9 SH	55	tv->speed = temp;
	56
	57	dev_dbg(&tv->udev->dev, "speed = %d\n", tv->speed);
	58
	59	/* Set speed */
	60	retval = usb_control_msg(tv->udev, usb_sndctrlpipe(tv->udev, 0),
	61	0x01, /* vendor request: set speed */
	62	USB_DIR_IN \| USB_TYPE_VENDOR \| USB_RECIP_OTHER,
	63	tv->speed, /* speed value */
	64	0, NULL, 0, USB_CTRL_GET_TIMEOUT);
	65	if (retval) {
0cc5e2e7	66	tv->speed = old;
5638e4d9 SH	67	dev_dbg(&tv->udev->dev, "retval = %d\n", retval);
	68	return retval;
	69	}
	70	return count;
	71	}
	72
ed5bd7a4	73	static DEVICE_ATTR_RW(speed);
5638e4d9 SH	74
	75	static int tv_probe(struct usb_interface *interface,
	76	const struct usb_device_id *id)
	77	{
	78	struct usb_device *udev = interface_to_usbdev(interface);
	79	struct trancevibrator *dev;
	80	int retval;
	81
	82	dev = kzalloc(sizeof(struct trancevibrator), GFP_KERNEL);
58e61402	83	if (!dev) {
5638e4d9 SH	84	retval = -ENOMEM;
	85	goto error;
	86	}
	87
	88	dev->udev = usb_get_dev(udev);
	89	usb_set_intfdata(interface, dev);
	90	retval = device_create_file(&interface->dev, &dev_attr_speed);
	91	if (retval)
	92	goto error_create_file;
	93
	94	return 0;
	95
	96	error_create_file:
	97	usb_put_dev(udev);
	98	usb_set_intfdata(interface, NULL);
	99	error:
	100	kfree(dev);
	101	return retval;
	102	}
	103
	104	static void tv_disconnect(struct usb_interface *interface)
	105	{
	106	struct trancevibrator *dev;
	107
	108	dev = usb_get_intfdata (interface);
5638e4d9	109	device_remove_file(&interface->dev, &dev_attr_speed);
96ca014d	110	usb_set_intfdata(interface, NULL);
5638e4d9 SH	111	usb_put_dev(dev->udev);
	112	kfree(dev);
	113	}
	114
	115	/* USB subsystem object */
	116	static struct usb_driver tv_driver = {
	117	.name = "trancevibrator",
	118	.probe = tv_probe,
	119	.disconnect = tv_disconnect,
	120	.id_table = id_table,
	121	};
	122
65db4305	123	module_usb_driver(tv_driver);
5638e4d9 SH	124
	125	MODULE_AUTHOR(DRIVER_AUTHOR);
	126	MODULE_DESCRIPTION(DRIVER_DESC);
	127	MODULE_LICENSE("GPL");