linux/drivers/hid/hid-gyration.c
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   1/*
   2 *  HID driver for some gyration "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) 2007 Paul Walmsley
   8 *  Copyright (c) 2008 Jiri Slaby
   9 *  Copyright (c) 2006-2008 Jiri Kosina
  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 gy_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
  27                                        EV_KEY, (c))
  28static int gyration_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_LOGIVENDOR)
  33                return 0;
  34
  35        set_bit(EV_REP, hi->input->evbit);
  36        switch (usage->hid & HID_USAGE) {
  37        /* Reported on Gyration MCE Remote */
  38        case 0x00d: gy_map_key_clear(KEY_HOME);         break;
  39        case 0x024: gy_map_key_clear(KEY_DVD);          break;
  40        case 0x025: gy_map_key_clear(KEY_PVR);          break;
  41        case 0x046: gy_map_key_clear(KEY_MEDIA);        break;
  42        case 0x047: gy_map_key_clear(KEY_MP3);          break;
  43        case 0x048: gy_map_key_clear(KEY_MEDIA);        break;
  44        case 0x049: gy_map_key_clear(KEY_CAMERA);       break;
  45        case 0x04a: gy_map_key_clear(KEY_VIDEO);        break;
  46        case 0x05a: gy_map_key_clear(KEY_TEXT);         break;
  47        case 0x05b: gy_map_key_clear(KEY_RED);          break;
  48        case 0x05c: gy_map_key_clear(KEY_GREEN);        break;
  49        case 0x05d: gy_map_key_clear(KEY_YELLOW);       break;
  50        case 0x05e: gy_map_key_clear(KEY_BLUE);         break;
  51
  52        default:
  53                return 0;
  54        }
  55        return 1;
  56}
  57
  58static int gyration_event(struct hid_device *hdev, struct hid_field *field,
  59                struct hid_usage *usage, __s32 value)
  60{
  61
  62        if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput)
  63                return 0;
  64
  65        if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK &&
  66                        (usage->hid & 0xff) == 0x82) {
  67                struct input_dev *input = field->hidinput->input;
  68                input_event(input, usage->type, usage->code, 1);
  69                input_sync(input);
  70                input_event(input, usage->type, usage->code, 0);
  71                input_sync(input);
  72                return 1;
  73        }
  74
  75        return 0;
  76}
  77
  78static const struct hid_device_id gyration_devices[] = {
  79        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
  80        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
  81        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
  82        { }
  83};
  84MODULE_DEVICE_TABLE(hid, gyration_devices);
  85
  86static struct hid_driver gyration_driver = {
  87        .name = "gyration",
  88        .id_table = gyration_devices,
  89        .input_mapping = gyration_input_mapping,
  90        .event = gyration_event,
  91};
  92
  93static int __init gyration_init(void)
  94{
  95        return hid_register_driver(&gyration_driver);
  96}
  97
  98static void __exit gyration_exit(void)
  99{
 100        hid_unregister_driver(&gyration_driver);
 101}
 102
 103module_init(gyration_init);
 104module_exit(gyration_exit);
 105MODULE_LICENSE("GPL");
 106
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