[linux-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;

	retval = kstrtoint(buf, 10, &temp);
	if (retval)
		return retval;
	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_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
				 tv->speed, /* speed value */
				 0, NULL, 0, USB_CTRL_SET_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 struct attribute *tv_attrs[] = {
	&dev_attr_speed.attr,
	NULL,
};
ATTRIBUTE_GROUPS(tv);

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);

	return 0;

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);
	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,
	.dev_groups =	tv_groups,
};

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	48
9d20bca5 DX	49	retval = kstrtoint(buf, 10, &temp);
	50	if (retval)
	51	return retval;
5638e4d9 SH	52	if (temp > 255)
	53	temp = 255;
	54	else if (temp < 0)
	55	temp = 0;
0cc5e2e7	56	old = tv->speed;
5638e4d9 SH	57	tv->speed = temp;
	58
	59	dev_dbg(&tv->udev->dev, "speed = %d\n", tv->speed);
	60
	61	/* Set speed */
	62	retval = usb_control_msg(tv->udev, usb_sndctrlpipe(tv->udev, 0),
	63	0x01, /* vendor request: set speed */
746e4acf	64	USB_DIR_OUT \| USB_TYPE_VENDOR \| USB_RECIP_OTHER,
5638e4d9	65	tv->speed, /* speed value */
746e4acf	66	0, NULL, 0, USB_CTRL_SET_TIMEOUT);
5638e4d9	67	if (retval) {
0cc5e2e7	68	tv->speed = old;
5638e4d9 SH	69	dev_dbg(&tv->udev->dev, "retval = %d\n", retval);
	70	return retval;
	71	}
	72	return count;
	73	}
ed5bd7a4	74	static DEVICE_ATTR_RW(speed);
5638e4d9	75
f9bbcbef GKH	76	static struct attribute *tv_attrs[] = {
	77	&dev_attr_speed.attr,
	78	NULL,
	79	};
	80	ATTRIBUTE_GROUPS(tv);
	81
5638e4d9 SH	82	static int tv_probe(struct usb_interface *interface,
	83	const struct usb_device_id *id)
	84	{
	85	struct usb_device *udev = interface_to_usbdev(interface);
	86	struct trancevibrator *dev;
	87	int retval;
	88
	89	dev = kzalloc(sizeof(struct trancevibrator), GFP_KERNEL);
58e61402	90	if (!dev) {
5638e4d9 SH	91	retval = -ENOMEM;
	92	goto error;
	93	}
	94
	95	dev->udev = usb_get_dev(udev);
	96	usb_set_intfdata(interface, dev);
5638e4d9 SH	97
	98	return 0;
	99
5638e4d9 SH	100	error:
	101	kfree(dev);
	102	return retval;
	103	}
	104
	105	static void tv_disconnect(struct usb_interface *interface)
	106	{
	107	struct trancevibrator *dev;
	108
	109	dev = usb_get_intfdata (interface);
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,
f9bbcbef	121	.dev_groups = tv_groups,
5638e4d9 SH	122	};
5638e4d9 SH	123
65db4305	124	module_usb_driver(tv_driver);
5638e4d9 SH	125
	126	MODULE_AUTHOR(DRIVER_AUTHOR);
	127	MODULE_DESCRIPTION(DRIVER_DESC);
	128	MODULE_LICENSE("GPL");