linux/drivers/hid/hid-monterey.c
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   1/*
   2 *  HID driver for some monterey "special" devices
   3 *
   4 *  Copyright (c) 1999 Andreas Gal
   5 *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
   6 *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
   7 *  Copyright (c) 2006-2007 Jiri Kosina
   8 *  Copyright (c) 2007 Paul Walmsley
   9 *  Copyright (c) 2008 Jiri Slaby
  10 */
  11
  12/*
  13 * This program is free software; you can redistribute it and/or modify it
  14 * under the terms of the GNU General Public License as published by the Free
  15 * Software Foundation; either version 2 of the License, or (at your option)
  16 * any later version.
  17 */
  18
  19#include <linux/device.h>
  20#include <linux/hid.h>
  21#include <linux/module.h>
  22
  23#include "hid-ids.h"
  24
  25static __u8 *mr_report_fixup(struct hid_device *hdev, __u8 *rdesc,
  26                unsigned int *rsize)
  27{
  28        if (*rsize >= 30 && rdesc[29] == 0x05 && rdesc[30] == 0x09) {
  29                hid_info(hdev, "fixing up button/consumer in HID report descriptor\n");
  30                rdesc[30] = 0x0c;
  31        }
  32        return rdesc;
  33}
  34
  35#define mr_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
  36                                        EV_KEY, (c))
  37static int mr_input_mapping(struct hid_device *hdev, struct hid_input *hi,
  38                struct hid_field *field, struct hid_usage *usage,
  39                unsigned long **bit, int *max)
  40{
  41        if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER)
  42                return 0;
  43
  44        switch (usage->hid & HID_USAGE) {
  45        case 0x156: mr_map_key_clear(KEY_WORDPROCESSOR);        break;
  46        case 0x157: mr_map_key_clear(KEY_SPREADSHEET);          break;
  47        case 0x158: mr_map_key_clear(KEY_PRESENTATION);         break;
  48        case 0x15c: mr_map_key_clear(KEY_STOP);                 break;
  49        default:
  50                return 0;
  51        }
  52        return 1;
  53}
  54
  55static const struct hid_device_id mr_devices[] = {
  56        { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
  57        { }
  58};
  59MODULE_DEVICE_TABLE(hid, mr_devices);
  60
  61static struct hid_driver mr_driver = {
  62        .name = "monterey",
  63        .id_table = mr_devices,
  64        .report_fixup = mr_report_fixup,
  65        .input_mapping = mr_input_mapping,
  66};
  67
  68static int __init mr_init(void)
  69{
  70        return hid_register_driver(&mr_driver);
  71}
  72
  73static void __exit mr_exit(void)
  74{
  75        hid_unregister_driver(&mr_driver);
  76}
  77
  78module_init(mr_init);
  79module_exit(mr_exit);
  80MODULE_LICENSE("GPL");
  81
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