1 files changed, 252 insertions, 0 deletions

diff --git a/drivers/hid/usbhid/usbmouse.c b/drivers/hid/usbhid/usbmouse.c
new file mode 100644
index 000000000000..573776d865e1
--- /dev/null
+++ b/drivers/hid/usbhid/usbmouse.c
@@ -0,0 +1,252 @@
+/*
+ * $Id: usbmouse.c,v 1.15 2001/12/27 10:37:41 vojtech Exp $
+ *
+ *  Copyright (c) 1999-2001 Vojtech Pavlik
+ *
+ *  USB HIDBP Mouse support
+ */
+
+/*
+ * 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@ucw.cz>, or by paper mail:
+ * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/usb/input.h>
+#include <linux/hid.h>
+
+/*
+ * Version Information
+ */
+#define DRIVER_VERSION "v1.6"
+#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
+#define DRIVER_DESC "USB HID Boot Protocol mouse driver"
+#define DRIVER_LICENSE "GPL"
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE(DRIVER_LICENSE);
+
+struct usb_mouse {
+        char name[128];
+        char phys[64];
+        struct usb_device *usbdev;
+        struct input_dev *dev;
+        struct urb *irq;
+
+        signed char *data;
+        dma_addr_t data_dma;
+};
+
+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;
+        int status;
+
+        switch (urb->status) {
+        case 0:                 /* success */
+                break;
+        case -ECONNRESET:       /* unlink */
+        case -ENOENT:
+        case -ESHUTDOWN:
+                return;
+        /* -EPIPE:  should clear the halt */
+        default:                /* error */
+                goto resubmit;
+        }
+
+        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]);
+
+        input_sync(dev);
+resubmit:
+        status = usb_submit_urb (urb, GFP_ATOMIC);
+        if (status)
+                err ("can't resubmit intr, %s-%s/input0, status %d",
+                                mouse->usbdev->bus->bus_name,
+                                mouse->usbdev->devpath, status);
+}
+
+static int usb_mouse_open(struct input_dev *dev)
+{
+        struct usb_mouse *mouse = dev->private;
+
+        mouse->irq->dev = mouse->usbdev;
+        if (usb_submit_urb(mouse->irq, GFP_KERNEL))
+                return -EIO;
+
+        return 0;
+}
+
+static void usb_mouse_close(struct input_dev *dev)
+{
+        struct usb_mouse *mouse = dev->private;
+
+        usb_kill_urb(mouse->irq);
+}
+
+static int usb_mouse_probe(struct usb_interface *intf, const struct usb_device_id *id)
+{
+        struct usb_device *dev = interface_to_usbdev(intf);
+        struct usb_host_interface *interface;
+        struct usb_endpoint_descriptor *endpoint;
+        struct usb_mouse *mouse;
+        struct input_dev *input_dev;
+        int pipe, maxp;
+        int error = -ENOMEM;
+
+        interface = intf->cur_altsetting;
+
+        if (interface->desc.bNumEndpoints != 1)
+                return -ENODEV;
+
+        endpoint = &interface->endpoint[0].desc;
+        if (!usb_endpoint_is_int_in(endpoint))
+                return -ENODEV;
+
+        pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
+        maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
+
+        mouse = kzalloc(sizeof(struct usb_mouse), GFP_KERNEL);
+        input_dev = input_allocate_device();
+        if (!mouse || !input_dev)
+                goto fail1;
+
+        mouse->data = usb_buffer_alloc(dev, 8, GFP_ATOMIC, &mouse->data_dma);
+        if (!mouse->data)
+                goto fail1;
+
+        mouse->irq = usb_alloc_urb(0, GFP_KERNEL);
+        if (!mouse->irq)
+                goto fail2;
+
+        mouse->usbdev = dev;
+        mouse->dev = input_dev;
+
+        if (dev->manufacturer)
+                strlcpy(mouse->name, dev->manufacturer, sizeof(mouse->name));
+
+        if (dev->product) {
+                if (dev->manufacturer)
+                        strlcat(mouse->name, " ", sizeof(mouse->name));
+                strlcat(mouse->name, dev->product, sizeof(mouse->name));
+        }
+
+        if (!strlen(mouse->name))
+                snprintf(mouse->name, sizeof(mouse->name),
+                         "USB HIDBP Mouse %04x:%04x",
+                         le16_to_cpu(dev->descriptor.idVendor),
+                         le16_to_cpu(dev->descriptor.idProduct));
+
+        usb_make_path(dev, mouse->phys, sizeof(mouse->phys));
+        strlcat(mouse->phys, "/input0", sizeof(mouse->phys));
+
+        input_dev->name = mouse->name;
+        input_dev->phys = mouse->phys;
+        usb_to_input_id(dev, &input_dev->id);
+        input_dev->cdev.dev = &intf->dev;
+
+        input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
+        input_dev->keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
+        input_dev->relbit[0] = BIT(REL_X) | BIT(REL_Y);
+        input_dev->keybit[LONG(BTN_MOUSE)] |= BIT(BTN_SIDE) | BIT(BTN_EXTRA);
+        input_dev->relbit[0] |= BIT(REL_WHEEL);
+
+        input_dev->private = mouse;
+        input_dev->open = usb_mouse_open;
+        input_dev->close = usb_mouse_close;
+
+        usb_fill_int_urb(mouse->irq, dev, pipe, mouse->data,
+                         (maxp > 8 ? 8 : maxp),
+                         usb_mouse_irq, mouse, endpoint->bInterval);
+        mouse->irq->transfer_dma = mouse->data_dma;
+        mouse->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+        error = input_register_device(mouse->dev);
+        if (error)
+                goto fail3;
+
+        usb_set_intfdata(intf, mouse);
+        return 0;
+
+fail3:  
+        usb_free_urb(mouse->irq);
+fail2:  
+        usb_buffer_free(dev, 8, mouse->data, mouse->data_dma);
+fail1:  
+        input_free_device(input_dev);
+        kfree(mouse);
+        return error;
+}
+
+static void usb_mouse_disconnect(struct usb_interface *intf)
+{
+        struct usb_mouse *mouse = usb_get_intfdata (intf);
+
+        usb_set_intfdata(intf, NULL);
+        if (mouse) {
+                usb_kill_urb(mouse->irq);
+                input_unregister_device(mouse->dev);
+                usb_free_urb(mouse->irq);
+                usb_buffer_free(interface_to_usbdev(intf), 8, mouse->data, mouse->data_dma);
+                kfree(mouse);
+        }
+}
+
+static struct usb_device_id usb_mouse_id_table [] = {
+        { USB_INTERFACE_INFO(USB_INTERFACE_CLASS_HID, USB_INTERFACE_SUBCLASS_BOOT,
+                USB_INTERFACE_PROTOCOL_MOUSE) },
+        { }     /* Terminating entry */
+};
+
+MODULE_DEVICE_TABLE (usb, usb_mouse_id_table);
+
+static struct usb_driver usb_mouse_driver = {
+        .name           = "usbmouse",
+        .probe          = usb_mouse_probe,
+        .disconnect     = usb_mouse_disconnect,
+        .id_table       = usb_mouse_id_table,
+};
+
+static int __init usb_mouse_init(void)
+{
+        int retval = usb_register(&usb_mouse_driver);
+        if (retval == 0)
+                info(DRIVER_VERSION ":" DRIVER_DESC);
+        return retval;
+}
+
+static void __exit usb_mouse_exit(void)
+{
+        usb_deregister(&usb_mouse_driver);
+}
+
+module_init(usb_mouse_init);
+module_exit(usb_mouse_exit);