1/* 2 * $Id: usbmouse.c,v 1.1.1.1 2008/10/15 03:27:02 james26_jang Exp $ 3 * 4 * Copyright (c) 1999-2000 Vojtech Pavlik 5 * 6 * USB HIDBP Mouse support 7 * 8 * Sponsored by SuSE 9 */ 10 11/* 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of the GNU General Public License as published by 14 * the Free Software Foundation; either version 2 of the License, or 15 * (at your option) any later version. 16 * 17 * This program is distributed in the hope that it will be useful, 18 * but WITHOUT ANY WARRANTY; without even the implied warranty of 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 20 * GNU General Public License for more details. 21 * 22 * You should have received a copy of the GNU General Public License 23 * along with this program; if not, write to the Free Software 24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 25 * 26 * Should you need to contact me, the author, you can do so either by 27 * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail: 28 * Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic 29 */ 30 31#include <linux/kernel.h> 32#include <linux/slab.h> 33#include <linux/input.h> 34#include <linux/module.h> 35#include <linux/init.h> 36#include <linux/usb.h> 37 38/* 39 * Version Information 40 */ 41#define DRIVER_VERSION "v1.6" 42#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@suse.cz>" 43#define DRIVER_DESC "USB HID Boot Protocol mouse driver" 44 45MODULE_AUTHOR( DRIVER_AUTHOR ); 46MODULE_DESCRIPTION( DRIVER_DESC ); 47MODULE_LICENSE("GPL"); 48 49struct usb_mouse { 50 signed char data[8]; 51 char name[128]; 52 struct usb_device *usbdev; 53 struct input_dev dev; 54 struct urb irq; 55 int open; 56}; 57 58static void usb_mouse_irq(struct urb *urb) 59{ 60 struct usb_mouse *mouse = urb->context; 61 signed char *data = mouse->data; 62 struct input_dev *dev = &mouse->dev; 63 64 if (urb->status) return; 65 66 input_report_key(dev, BTN_LEFT, data[0] & 0x01); 67 input_report_key(dev, BTN_RIGHT, data[0] & 0x02); 68 input_report_key(dev, BTN_MIDDLE, data[0] & 0x04); 69 input_report_key(dev, BTN_SIDE, data[0] & 0x08); 70 input_report_key(dev, BTN_EXTRA, data[0] & 0x10); 71 72 input_report_rel(dev, REL_X, data[1]); 73 input_report_rel(dev, REL_Y, data[2]); 74 input_report_rel(dev, REL_WHEEL, data[3]); 75} 76 77static int usb_mouse_open(struct input_dev *dev) 78{ 79 struct usb_mouse *mouse = dev->private; 80 81 if (mouse->open++) 82 return 0; 83 84 mouse->irq.dev = mouse->usbdev; 85 if (usb_submit_urb(&mouse->irq)) 86 return -EIO; 87 88 return 0; 89} 90 91static void usb_mouse_close(struct input_dev *dev) 92{ 93 struct usb_mouse *mouse = dev->private; 94 95 if (!--mouse->open) 96 usb_unlink_urb(&mouse->irq); 97} 98 99static void *usb_mouse_probe(struct usb_device *dev, unsigned int ifnum, 100 const struct usb_device_id *id) 101{ 102 struct usb_interface *iface; 103 struct usb_interface_descriptor *interface; 104 struct usb_endpoint_descriptor *endpoint; 105 struct usb_mouse *mouse; 106 int pipe, maxp; 107 char *buf; 108 109 iface = &dev->actconfig->interface[ifnum]; 110 interface = &iface->altsetting[iface->act_altsetting]; 111 112 if (interface->bNumEndpoints != 1) return NULL; 113 114 endpoint = interface->endpoint + 0; 115 if (!(endpoint->bEndpointAddress & 0x80)) return NULL; 116 if ((endpoint->bmAttributes & 3) != 3) return NULL; 117 /* wacom tablets match... */ 118 if (dev->descriptor.idVendor == 0x056a) return NULL; 119 120 pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress); 121 maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe)); 122 123 usb_set_idle(dev, interface->bInterfaceNumber, 0, 0); 124 125 if (!(mouse = kmalloc(sizeof(struct usb_mouse), GFP_KERNEL))) return NULL; 126 memset(mouse, 0, sizeof(struct usb_mouse)); 127 128 mouse->usbdev = dev; 129 130 mouse->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REL); 131 mouse->dev.keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE); 132 mouse->dev.relbit[0] = BIT(REL_X) | BIT(REL_Y); 133 mouse->dev.keybit[LONG(BTN_MOUSE)] |= BIT(BTN_SIDE) | BIT(BTN_EXTRA); 134 mouse->dev.relbit[0] |= BIT(REL_WHEEL); 135 136 mouse->dev.private = mouse; 137 mouse->dev.open = usb_mouse_open; 138 mouse->dev.close = usb_mouse_close; 139 140 mouse->dev.name = mouse->name; 141 mouse->dev.idbus = BUS_USB; 142 mouse->dev.idvendor = dev->descriptor.idVendor; 143 mouse->dev.idproduct = dev->descriptor.idProduct; 144 mouse->dev.idversion = dev->descriptor.bcdDevice; 145 146 if (!(buf = kmalloc(63, GFP_KERNEL))) { 147 kfree(mouse); 148 return NULL; 149 } 150 151 if (dev->descriptor.iManufacturer && 152 usb_string(dev, dev->descriptor.iManufacturer, buf, 63) > 0) 153 strcat(mouse->name, buf); 154 if (dev->descriptor.iProduct && 155 usb_string(dev, dev->descriptor.iProduct, buf, 63) > 0) 156 sprintf(mouse->name, "%s %s", mouse->name, buf); 157 158 if (!strlen(mouse->name)) 159 sprintf(mouse->name, "USB HIDBP Mouse %04x:%04x", 160 mouse->dev.idvendor, mouse->dev.idproduct); 161 162 kfree(buf); 163 164 FILL_INT_URB(&mouse->irq, dev, pipe, mouse->data, maxp > 8 ? 8 : maxp, 165 usb_mouse_irq, mouse, endpoint->bInterval); 166 167 input_register_device(&mouse->dev); 168 169 printk(KERN_INFO "input%d: %s on usb%d:%d.%d\n", 170 mouse->dev.number, mouse->name, dev->bus->busnum, dev->devnum, ifnum); 171 172 return mouse; 173} 174 175static void usb_mouse_disconnect(struct usb_device *dev, void *ptr) 176{ 177 struct usb_mouse *mouse = ptr; 178 usb_unlink_urb(&mouse->irq); 179 input_unregister_device(&mouse->dev); 180 kfree(mouse); 181} 182 183static struct usb_device_id usb_mouse_id_table [] = { 184 { USB_INTERFACE_INFO(3, 1, 2) }, 185 { } /* Terminating entry */ 186}; 187 188MODULE_DEVICE_TABLE (usb, usb_mouse_id_table); 189 190static struct usb_driver usb_mouse_driver = { 191 name: "usbmouse", 192 probe: usb_mouse_probe, 193 disconnect: usb_mouse_disconnect, 194 id_table: usb_mouse_id_table, 195}; 196 197static int __init usb_mouse_init(void) 198{ 199 usb_register(&usb_mouse_driver); 200 info(DRIVER_VERSION ":" DRIVER_DESC); 201 return 0; 202} 203 204static void __exit usb_mouse_exit(void) 205{ 206 usb_deregister(&usb_mouse_driver); 207} 208 209module_init(usb_mouse_init); 210module_exit(usb_mouse_exit); 211