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128 lines
2.9 KiB
128 lines
2.9 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* PlayStation 2 Trance Vibrator driver |
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* |
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* Copyright (C) 2006 Sam Hocevar <[email protected]> |
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*/ |
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/* Standard include files */ |
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#include <linux/kernel.h> |
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#include <linux/errno.h> |
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#include <linux/slab.h> |
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#include <linux/module.h> |
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#include <linux/usb.h> |
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#define DRIVER_AUTHOR "Sam Hocevar, [email protected]" |
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#define DRIVER_DESC "PlayStation 2 Trance Vibrator driver" |
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#define TRANCEVIBRATOR_VENDOR_ID 0x0b49 /* ASCII Corporation */ |
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#define TRANCEVIBRATOR_PRODUCT_ID 0x064f /* Trance Vibrator */ |
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static const struct usb_device_id id_table[] = { |
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{ USB_DEVICE(TRANCEVIBRATOR_VENDOR_ID, TRANCEVIBRATOR_PRODUCT_ID) }, |
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{ }, |
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}; |
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MODULE_DEVICE_TABLE (usb, id_table); |
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/* Driver-local specific stuff */ |
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struct trancevibrator { |
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struct usb_device *udev; |
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unsigned int speed; |
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}; |
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static ssize_t speed_show(struct device *dev, struct device_attribute *attr, |
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char *buf) |
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{ |
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struct usb_interface *intf = to_usb_interface(dev); |
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struct trancevibrator *tv = usb_get_intfdata(intf); |
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return sprintf(buf, "%d\n", tv->speed); |
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} |
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static ssize_t speed_store(struct device *dev, struct device_attribute *attr, |
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const char *buf, size_t count) |
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{ |
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struct usb_interface *intf = to_usb_interface(dev); |
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struct trancevibrator *tv = usb_get_intfdata(intf); |
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int temp, retval, old; |
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retval = kstrtoint(buf, 10, &temp); |
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if (retval) |
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return retval; |
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if (temp > 255) |
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temp = 255; |
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else if (temp < 0) |
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temp = 0; |
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old = tv->speed; |
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tv->speed = temp; |
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dev_dbg(&tv->udev->dev, "speed = %d\n", tv->speed); |
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/* Set speed */ |
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retval = usb_control_msg(tv->udev, usb_sndctrlpipe(tv->udev, 0), |
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0x01, /* vendor request: set speed */ |
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USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, |
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tv->speed, /* speed value */ |
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0, NULL, 0, USB_CTRL_SET_TIMEOUT); |
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if (retval) { |
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tv->speed = old; |
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dev_dbg(&tv->udev->dev, "retval = %d\n", retval); |
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return retval; |
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} |
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return count; |
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} |
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static DEVICE_ATTR_RW(speed); |
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static struct attribute *tv_attrs[] = { |
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&dev_attr_speed.attr, |
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NULL, |
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}; |
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ATTRIBUTE_GROUPS(tv); |
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static int tv_probe(struct usb_interface *interface, |
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const struct usb_device_id *id) |
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{ |
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struct usb_device *udev = interface_to_usbdev(interface); |
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struct trancevibrator *dev; |
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int retval; |
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dev = kzalloc(sizeof(struct trancevibrator), GFP_KERNEL); |
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if (!dev) { |
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retval = -ENOMEM; |
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goto error; |
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} |
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dev->udev = usb_get_dev(udev); |
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usb_set_intfdata(interface, dev); |
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return 0; |
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error: |
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kfree(dev); |
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return retval; |
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} |
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static void tv_disconnect(struct usb_interface *interface) |
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{ |
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struct trancevibrator *dev; |
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dev = usb_get_intfdata (interface); |
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usb_set_intfdata(interface, NULL); |
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usb_put_dev(dev->udev); |
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kfree(dev); |
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} |
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/* USB subsystem object */ |
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static struct usb_driver tv_driver = { |
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.name = "trancevibrator", |
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.probe = tv_probe, |
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.disconnect = tv_disconnect, |
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.id_table = id_table, |
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.dev_groups = tv_groups, |
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}; |
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module_usb_driver(tv_driver); |
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MODULE_AUTHOR(DRIVER_AUTHOR); |
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MODULE_DESCRIPTION(DRIVER_DESC); |
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MODULE_LICENSE("GPL");
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