forked from Minki/linux
65cde54b8b
core takes care of calling open and close methods only
when needed.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
246 lines
6.5 KiB
C
246 lines
6.5 KiB
C
/*
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* $Id: usbmouse.c,v 1.15 2001/12/27 10:37:41 vojtech Exp $
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*
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* Copyright (c) 1999-2001 Vojtech Pavlik
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*
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* USB HIDBP Mouse support
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Should you need to contact me, the author, you can do so either by
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* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
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* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
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*/
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/input.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/usb.h>
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/*
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* Version Information
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*/
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#define DRIVER_VERSION "v1.6"
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#define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
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#define DRIVER_DESC "USB HID Boot Protocol mouse driver"
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#define DRIVER_LICENSE "GPL"
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MODULE_AUTHOR(DRIVER_AUTHOR);
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE(DRIVER_LICENSE);
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struct usb_mouse {
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char name[128];
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char phys[64];
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struct usb_device *usbdev;
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struct input_dev dev;
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struct urb *irq;
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signed char *data;
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dma_addr_t data_dma;
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};
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static void usb_mouse_irq(struct urb *urb, struct pt_regs *regs)
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{
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struct usb_mouse *mouse = urb->context;
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signed char *data = mouse->data;
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struct input_dev *dev = &mouse->dev;
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int status;
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switch (urb->status) {
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case 0: /* success */
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break;
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case -ECONNRESET: /* unlink */
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case -ENOENT:
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case -ESHUTDOWN:
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return;
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/* -EPIPE: should clear the halt */
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default: /* error */
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goto resubmit;
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}
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input_regs(dev, regs);
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input_report_key(dev, BTN_LEFT, data[0] & 0x01);
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input_report_key(dev, BTN_RIGHT, data[0] & 0x02);
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input_report_key(dev, BTN_MIDDLE, data[0] & 0x04);
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input_report_key(dev, BTN_SIDE, data[0] & 0x08);
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input_report_key(dev, BTN_EXTRA, data[0] & 0x10);
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input_report_rel(dev, REL_X, data[1]);
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input_report_rel(dev, REL_Y, data[2]);
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input_report_rel(dev, REL_WHEEL, data[3]);
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input_sync(dev);
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resubmit:
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status = usb_submit_urb (urb, SLAB_ATOMIC);
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if (status)
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err ("can't resubmit intr, %s-%s/input0, status %d",
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mouse->usbdev->bus->bus_name,
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mouse->usbdev->devpath, status);
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}
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static int usb_mouse_open(struct input_dev *dev)
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{
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struct usb_mouse *mouse = dev->private;
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mouse->irq->dev = mouse->usbdev;
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if (usb_submit_urb(mouse->irq, GFP_KERNEL))
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return -EIO;
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return 0;
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}
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static void usb_mouse_close(struct input_dev *dev)
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{
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struct usb_mouse *mouse = dev->private;
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usb_kill_urb(mouse->irq);
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}
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static int usb_mouse_probe(struct usb_interface * intf, const struct usb_device_id * id)
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{
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struct usb_device * dev = interface_to_usbdev(intf);
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struct usb_host_interface *interface;
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struct usb_endpoint_descriptor *endpoint;
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struct usb_mouse *mouse;
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int pipe, maxp;
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char path[64];
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interface = intf->cur_altsetting;
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if (interface->desc.bNumEndpoints != 1)
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return -ENODEV;
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endpoint = &interface->endpoint[0].desc;
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if (!(endpoint->bEndpointAddress & 0x80))
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return -ENODEV;
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if ((endpoint->bmAttributes & 3) != 3)
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return -ENODEV;
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pipe = usb_rcvintpipe(dev, endpoint->bEndpointAddress);
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maxp = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
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if (!(mouse = kmalloc(sizeof(struct usb_mouse), GFP_KERNEL)))
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return -ENOMEM;
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memset(mouse, 0, sizeof(struct usb_mouse));
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mouse->data = usb_buffer_alloc(dev, 8, SLAB_ATOMIC, &mouse->data_dma);
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if (!mouse->data) {
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kfree(mouse);
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return -ENOMEM;
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}
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mouse->irq = usb_alloc_urb(0, GFP_KERNEL);
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if (!mouse->irq) {
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usb_buffer_free(dev, 8, mouse->data, mouse->data_dma);
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kfree(mouse);
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return -ENODEV;
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}
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mouse->usbdev = dev;
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mouse->dev.evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
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mouse->dev.keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
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mouse->dev.relbit[0] = BIT(REL_X) | BIT(REL_Y);
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mouse->dev.keybit[LONG(BTN_MOUSE)] |= BIT(BTN_SIDE) | BIT(BTN_EXTRA);
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mouse->dev.relbit[0] |= BIT(REL_WHEEL);
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mouse->dev.private = mouse;
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mouse->dev.open = usb_mouse_open;
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mouse->dev.close = usb_mouse_close;
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usb_make_path(dev, path, 64);
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sprintf(mouse->phys, "%s/input0", path);
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mouse->dev.name = mouse->name;
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mouse->dev.phys = mouse->phys;
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mouse->dev.id.bustype = BUS_USB;
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mouse->dev.id.vendor = le16_to_cpu(dev->descriptor.idVendor);
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mouse->dev.id.product = le16_to_cpu(dev->descriptor.idProduct);
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mouse->dev.id.version = le16_to_cpu(dev->descriptor.bcdDevice);
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mouse->dev.dev = &intf->dev;
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if (dev->manufacturer)
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strcat(mouse->name, dev->manufacturer);
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if (dev->product)
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sprintf(mouse->name, "%s %s", mouse->name, dev->product);
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if (!strlen(mouse->name))
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sprintf(mouse->name, "USB HIDBP Mouse %04x:%04x",
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mouse->dev.id.vendor, mouse->dev.id.product);
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usb_fill_int_urb(mouse->irq, dev, pipe, mouse->data,
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(maxp > 8 ? 8 : maxp),
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usb_mouse_irq, mouse, endpoint->bInterval);
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mouse->irq->transfer_dma = mouse->data_dma;
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mouse->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
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input_register_device(&mouse->dev);
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printk(KERN_INFO "input: %s on %s\n", mouse->name, path);
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usb_set_intfdata(intf, mouse);
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return 0;
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}
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static void usb_mouse_disconnect(struct usb_interface *intf)
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{
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struct usb_mouse *mouse = usb_get_intfdata (intf);
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usb_set_intfdata(intf, NULL);
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if (mouse) {
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usb_kill_urb(mouse->irq);
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input_unregister_device(&mouse->dev);
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usb_free_urb(mouse->irq);
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usb_buffer_free(interface_to_usbdev(intf), 8, mouse->data, mouse->data_dma);
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kfree(mouse);
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}
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}
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static struct usb_device_id usb_mouse_id_table [] = {
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{ USB_INTERFACE_INFO(3, 1, 2) },
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{ } /* Terminating entry */
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};
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MODULE_DEVICE_TABLE (usb, usb_mouse_id_table);
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static struct usb_driver usb_mouse_driver = {
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.owner = THIS_MODULE,
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.name = "usbmouse",
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.probe = usb_mouse_probe,
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.disconnect = usb_mouse_disconnect,
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.id_table = usb_mouse_id_table,
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};
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static int __init usb_mouse_init(void)
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{
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int retval = usb_register(&usb_mouse_driver);
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if (retval == 0)
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info(DRIVER_VERSION ":" DRIVER_DESC);
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return retval;
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}
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static void __exit usb_mouse_exit(void)
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{
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usb_deregister(&usb_mouse_driver);
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}
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module_init(usb_mouse_init);
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module_exit(usb_mouse_exit);
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