patch-2.2.18 linux/drivers/usb/usbmouse.c

• Lines: 189
• Date: Fri Sep 15 22:02:30 2000
• Orig file: v2.2.17/drivers/usb/usbmouse.c
• Orig date: Thu Jan 1 01:00:00 1970

diff -u --new-file --recursive --exclude-from /usr/src/exclude v2.2.17/drivers/usb/usbmouse.c linux/drivers/usb/usbmouse.c
@@ -0,0 +1,188 @@
+/*
+ * $Id: usbmouse.c,v 1.5 2000/05/29 09:01:52 vojtech Exp $
+ *
+ *  Copyright (c) 1999-2000 Vojtech Pavlik
+ *
+ *  USB HIDBP Mouse support
+ *
+ *  Sponsored by SuSE
+ */
+
+/*
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * 
+ * Should you need to contact me, the author, you can do so either by
+ * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail:
+ * Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/malloc.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/usb.h>
+
+MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
+MODULE_DESCRIPTION("USB HID Boot Protocol mouse driver");
+
+struct usb_mouse {
+	signed char data[8];
+	char name[128];
+	struct input_dev dev;
+	struct urb irq;
+	int open;
+};
+
+static void usb_mouse_irq(struct urb *urb)
+{
+	struct usb_mouse *mouse = urb->context;
+	signed char *data = mouse->data;
+	struct input_dev *dev = &mouse->dev;
+
+	if (urb->status) return;
+
+	input_report_key(dev, BTN_LEFT,   data[0] & 0x01);
+	input_report_key(dev, BTN_RIGHT,  data[0] & 0x02);
+	input_report_key(dev, BTN_MIDDLE, data[0] & 0x04);
+	input_report_key(dev, BTN_SIDE,   data[0] & 0x08);
+	input_report_key(dev, BTN_EXTRA,  data[0] & 0x10);
+
+	input_report_rel(dev, REL_X,     data[1]);
+	input_report_rel(dev, REL_Y,     data[2]);
+	input_report_rel(dev, REL_WHEEL, data[3]);
+}
+
+static int usb_mouse_open(struct input_dev *dev)
+{
+	struct usb_mouse *mouse = dev->private;
+
+	if (mouse->open++)
+		return 0;
+
+	if (usb_submit_urb(&mouse->irq))
+		return -EIO;
+
+	return 0;
+}
+
+static void usb_mouse_close(struct input_dev *dev)
+{
+	struct usb_mouse *mouse = dev->private;
+
+	if (!--mouse->open)
+		usb_unlink_urb(&mouse->irq);
+}
+
+static void *usb_mouse_probe(struct usb_device *dev, unsigned int ifnum)
+{
+	struct usb_interface_descriptor *interface;
+	struct usb_endpoint_descriptor *endpoint;
+	struct usb_mouse *mouse;
+	int pipe, maxp;
+	char *buf;
+
+	if (dev->descriptor.bNumConfigurations != 1) return NULL;
+	interface = dev->config[0].interface[ifnum].altsetting + 0;
+
+	if (interface->bInterfaceClass != 3) return NULL;
+	if (interface->bInterfaceSubClass != 1) return NULL;
+	if (interface->bInterfaceProtocol != 2) return NULL;
+	if (interface->bNumEndpoints != 1) return NULL;
+
+	endpoint = interface->endpoint + 0;
+	if (!(endpoint->bEndpointAddress & 0x80)) return NULL;
+	if ((endpoint->bmAttributes & 3) != 3) return NULL;
+
+	pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
+	maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
+
+	usb_set_idle(dev, interface->bInterfaceNumber, 0, 0);
+
+	if (!(mouse = kmalloc(sizeof(struct usb_mouse), GFP_KERNEL))) return NULL;
+	memset(mouse, 0, sizeof(struct usb_mouse));
+
+	mouse->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
+	mouse->dev.keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
+	mouse->dev.relbit[0] = BIT(REL_X) | BIT(REL_Y);
+	mouse->dev.keybit[LONG(BTN_MOUSE)] |= BIT(BTN_SIDE) | BIT(BTN_EXTRA);
+	mouse->dev.relbit[0] |= BIT(REL_WHEEL);
+
+	mouse->dev.private = mouse;
+	mouse->dev.open = usb_mouse_open;
+	mouse->dev.close = usb_mouse_close;
+
+	mouse->dev.name = mouse->name;
+	mouse->dev.idbus = BUS_USB;
+	mouse->dev.idvendor = dev->descriptor.idVendor;
+	mouse->dev.idproduct = dev->descriptor.idProduct;
+	mouse->dev.idversion = dev->descriptor.bcdDevice;
+
+	if (!(buf = kmalloc(63, GFP_KERNEL))) {
+		kfree(mouse);
+		return NULL;
+	}
+
+	if (dev->descriptor.iManufacturer &&
+		usb_string(dev, dev->descriptor.iManufacturer, buf, 63) > 0)
+			strcat(mouse->name, buf);
+	if (dev->descriptor.iProduct &&
+		usb_string(dev, dev->descriptor.iProduct, buf, 63) > 0)
+			sprintf(mouse->name, "%s %s", mouse->name, buf);
+
+	if (!strlen(mouse->name))
+		sprintf(mouse->name, "USB HIDBP Mouse %04x:%04x",
+			mouse->dev.idvendor, mouse->dev.idproduct);
+
+	kfree(buf);
+
+	FILL_INT_URB(&mouse->irq, dev, pipe, mouse->data, maxp > 8 ? 8 : maxp,
+		usb_mouse_irq, mouse, endpoint->bInterval);
+
+	input_register_device(&mouse->dev);
+
+	printk(KERN_INFO "input%d: %s on usb%d:%d.%d\n",
+		 mouse->dev.number, mouse->name, dev->bus->busnum, dev->devnum, ifnum);
+
+	return mouse;
+}
+
+static void usb_mouse_disconnect(struct usb_device *dev, void *ptr)
+{
+	struct usb_mouse *mouse = ptr;
+	usb_unlink_urb(&mouse->irq);
+	input_unregister_device(&mouse->dev);
+	kfree(mouse);
+}
+
+static struct usb_driver usb_mouse_driver = {
+	name:		"usb_mouse",
+	probe:		usb_mouse_probe,
+	disconnect:	usb_mouse_disconnect,
+};
+
+static int __init usb_mouse_init(void)
+{
+	usb_register(&usb_mouse_driver);
+	return 0;
+}
+
+static void __exit usb_mouse_exit(void)
+{
+	usb_deregister(&usb_mouse_driver);
+}
+
+module_init(usb_mouse_init);
+module_exit(usb_mouse_exit);