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Viewing changes to drivers/hid/hid-belkin.c

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-tz023xykf0i6eosh
Tags: upstream-3.2.0
Import upstream version 3.2.0

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drivers/hid/hid-belkin.c
 
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/*
 
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 *  HID driver for some belkin "special" devices
 
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 *
 
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 *  Copyright (c) 1999 Andreas Gal
 
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 *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
 
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 *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
 
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 *  Copyright (c) 2006-2007 Jiri Kosina
 
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 *  Copyright (c) 2007 Paul Walmsley
 
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 *  Copyright (c) 2008 Jiri Slaby
 
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 */
 
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/*
 
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 * This program is free software; you can redistribute it and/or modify it
 
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 * under the terms of the GNU General Public License as published by the Free
 
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 * Software Foundation; either version 2 of the License, or (at your option)
 
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 * any later version.
 
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 */
 
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#include <linux/device.h>
 
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#include <linux/hid.h>
 
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#include <linux/module.h>
 
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#include "hid-ids.h"
 
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#define BELKIN_HIDDEV   0x01
 
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#define BELKIN_WKBD     0x02
 
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#define belkin_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
 
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                                        EV_KEY, (c))
 
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static int belkin_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 
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                struct hid_field *field, struct hid_usage *usage,
 
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                unsigned long **bit, int *max)
 
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{
 
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        unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
 
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        if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER ||
 
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                        !(quirks & BELKIN_WKBD))
 
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                return 0;
 
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        switch (usage->hid & HID_USAGE) {
 
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        case 0x03a: belkin_map_key_clear(KEY_SOUND);            break;
 
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        case 0x03b: belkin_map_key_clear(KEY_CAMERA);           break;
 
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        case 0x03c: belkin_map_key_clear(KEY_DOCUMENTS);        break;
 
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        default:
 
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                return 0;
 
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        }
 
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        return 1;
 
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}
 
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static int belkin_probe(struct hid_device *hdev, const struct hid_device_id *id)
 
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{
 
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        unsigned long quirks = id->driver_data;
 
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        int ret;
 
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        hid_set_drvdata(hdev, (void *)quirks);
 
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        ret = hid_parse(hdev);
 
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        if (ret) {
 
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                hid_err(hdev, "parse failed\n");
 
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                goto err_free;
 
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        }
 
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        ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
 
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                ((quirks & BELKIN_HIDDEV) ? HID_CONNECT_HIDDEV_FORCE : 0));
 
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        if (ret) {
 
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                hid_err(hdev, "hw start failed\n");
 
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                goto err_free;
 
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        }
 
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        return 0;
 
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err_free:
 
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        return ret;
 
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}
 
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static const struct hid_device_id belkin_devices[] = {
 
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        { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM),
 
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                .driver_data = BELKIN_HIDDEV },
 
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        { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD),
 
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                .driver_data = BELKIN_WKBD },
 
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        { }
 
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};
 
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MODULE_DEVICE_TABLE(hid, belkin_devices);
 
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static struct hid_driver belkin_driver = {
 
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        .name = "belkin",
 
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        .id_table = belkin_devices,
 
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        .input_mapping = belkin_input_mapping,
 
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        .probe = belkin_probe,
 
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};
 
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static int __init belkin_init(void)
 
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{
 
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        return hid_register_driver(&belkin_driver);
 
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}
 
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static void __exit belkin_exit(void)
 
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{
 
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        hid_unregister_driver(&belkin_driver);
 
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}
 
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module_init(belkin_init);
 
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module_exit(belkin_exit);
 
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MODULE_LICENSE("GPL");