acc0b7c409
This patch completely removes the dependency of usbkbd and usbmouse drivers on usbhid code. usbkbd/usbmouse drivers are not needed in the vast majority of cases anyway, and they shouldn't be loaded in standard configurations at all. They are supposed to be as trivial as possible, and searching for HID_QUIRK_IGNORE can even be bad in some cases. Signed-off-by: Jiri Kosina <jkosina@suse.cz>
253 lines
6.6 KiB
C
253 lines
6.6 KiB
C
/*
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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/module.h>
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#include <linux/init.h>
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#include <linux/usb/input.h>
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#include <linux/hid.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)
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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_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, GFP_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 = input_get_drvdata(dev);
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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 = input_get_drvdata(dev);
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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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struct input_dev *input_dev;
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int pipe, maxp;
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int error = -ENOMEM;
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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 (!usb_endpoint_is_int_in(endpoint))
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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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mouse = kzalloc(sizeof(struct usb_mouse), GFP_KERNEL);
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input_dev = input_allocate_device();
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if (!mouse || !input_dev)
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goto fail1;
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mouse->data = usb_buffer_alloc(dev, 8, GFP_ATOMIC, &mouse->data_dma);
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if (!mouse->data)
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goto fail1;
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mouse->irq = usb_alloc_urb(0, GFP_KERNEL);
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if (!mouse->irq)
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goto fail2;
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mouse->usbdev = dev;
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mouse->dev = input_dev;
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if (dev->manufacturer)
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strlcpy(mouse->name, dev->manufacturer, sizeof(mouse->name));
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if (dev->product) {
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if (dev->manufacturer)
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strlcat(mouse->name, " ", sizeof(mouse->name));
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strlcat(mouse->name, dev->product, sizeof(mouse->name));
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}
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if (!strlen(mouse->name))
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snprintf(mouse->name, sizeof(mouse->name),
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"USB HIDBP Mouse %04x:%04x",
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le16_to_cpu(dev->descriptor.idVendor),
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le16_to_cpu(dev->descriptor.idProduct));
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usb_make_path(dev, mouse->phys, sizeof(mouse->phys));
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strlcat(mouse->phys, "/input0", sizeof(mouse->phys));
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input_dev->name = mouse->name;
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input_dev->phys = mouse->phys;
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usb_to_input_id(dev, &input_dev->id);
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input_dev->dev.parent = &intf->dev;
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input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
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input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
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BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE);
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input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
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input_dev->keybit[BIT_WORD(BTN_MOUSE)] |= BIT_MASK(BTN_SIDE) |
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BIT_MASK(BTN_EXTRA);
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input_dev->relbit[0] |= BIT_MASK(REL_WHEEL);
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input_set_drvdata(input_dev, mouse);
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input_dev->open = usb_mouse_open;
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input_dev->close = usb_mouse_close;
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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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error = input_register_device(mouse->dev);
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if (error)
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goto fail3;
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usb_set_intfdata(intf, mouse);
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return 0;
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fail3:
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usb_free_urb(mouse->irq);
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fail2:
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usb_buffer_free(dev, 8, mouse->data, mouse->data_dma);
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fail1:
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input_free_device(input_dev);
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kfree(mouse);
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return error;
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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(USB_INTERFACE_CLASS_HID, USB_INTERFACE_SUBCLASS_BOOT,
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USB_INTERFACE_PROTOCOL_MOUSE) },
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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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.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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