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