linux/drivers/hid/hid-chicony.c
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   1/*
   2 *  HID driver for some chicony "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/input.h>
  21#include <linux/hid.h>
  22#include <linux/module.h>
  23
  24#include "hid-ids.h"
  25
  26#define ch_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
  27                                        EV_KEY, (c))
  28static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
  29                struct hid_field *field, struct hid_usage *usage,
  30                unsigned long **bit, int *max)
  31{
  32        if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
  33                return 0;
  34
  35        set_bit(EV_REP, hi->input->evbit);
  36        switch (usage->hid & HID_USAGE) {
  37        case 0xff01: ch_map_key_clear(BTN_1);   break;
  38        case 0xff02: ch_map_key_clear(BTN_2);   break;
  39        case 0xff03: ch_map_key_clear(BTN_3);   break;
  40        case 0xff04: ch_map_key_clear(BTN_4);   break;
  41        case 0xff05: ch_map_key_clear(BTN_5);   break;
  42        case 0xff06: ch_map_key_clear(BTN_6);   break;
  43        case 0xff07: ch_map_key_clear(BTN_7);   break;
  44        case 0xff08: ch_map_key_clear(BTN_8);   break;
  45        case 0xff09: ch_map_key_clear(BTN_9);   break;
  46        case 0xff0a: ch_map_key_clear(BTN_A);   break;
  47        case 0xff0b: ch_map_key_clear(BTN_B);   break;
  48        default:
  49                return 0;
  50        }
  51        return 1;
  52}
  53
  54static const struct hid_device_id ch_devices[] = {
  55        { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
  56        { }
  57};
  58MODULE_DEVICE_TABLE(hid, ch_devices);
  59
  60static struct hid_driver ch_driver = {
  61        .name = "chicony",
  62        .id_table = ch_devices,
  63        .input_mapping = ch_input_mapping,
  64};
  65
  66static int ch_init(void)
  67{
  68        return hid_register_driver(&ch_driver);
  69}
  70
  71static void ch_exit(void)
  72{
  73        hid_unregister_driver(&ch_driver);
  74}
  75
  76module_init(ch_init);
  77module_exit(ch_exit);
  78MODULE_LICENSE("GPL");
  79
  80HID_COMPAT_LOAD_DRIVER(chicony);
  81