LXR linux/drivers/hid/hid-gyration.c

   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) 2008 Jiri Slaby
   8 *  Copyright (c) 2006-2008 Jiri Kosina
   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/input.h>
  20#include <linux/hid.h>
  21#include <linux/module.h>
  22
  23#include "hid-ids.h"
  24
  25#define gy_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
  26                                        EV_KEY, (c))
  27static int gyration_input_mapping(struct hid_device *hdev, struct hid_input *hi,
  28                struct hid_field *field, struct hid_usage *usage,
  29                unsigned long **bit, int *max)
  30{
  31        if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
  32                return 0;
  33
  34        set_bit(EV_REP, hi->input->evbit);
  35        switch (usage->hid & HID_USAGE) {
  36        /* Reported on Gyration MCE Remote */
  37        case 0x00d: gy_map_key_clear(KEY_HOME);         break;
  38        case 0x024: gy_map_key_clear(KEY_DVD);          break;
  39        case 0x025: gy_map_key_clear(KEY_PVR);          break;
  40        case 0x046: gy_map_key_clear(KEY_MEDIA);        break;
  41        case 0x047: gy_map_key_clear(KEY_MP3);          break;
  42        case 0x048: gy_map_key_clear(KEY_MEDIA);        break;
  43        case 0x049: gy_map_key_clear(KEY_CAMERA);       break;
  44        case 0x04a: gy_map_key_clear(KEY_VIDEO);        break;
  45        case 0x05a: gy_map_key_clear(KEY_TEXT);         break;
  46        case 0x05b: gy_map_key_clear(KEY_RED);          break;
  47        case 0x05c: gy_map_key_clear(KEY_GREEN);        break;
  48        case 0x05d: gy_map_key_clear(KEY_YELLOW);       break;
  49        case 0x05e: gy_map_key_clear(KEY_BLUE);         break;
  50
  51        default:
  52                return 0;
  53        }
  54        return 1;
  55}
  56
  57static int gyration_event(struct hid_device *hdev, struct hid_field *field,
  58                struct hid_usage *usage, __s32 value)
  59{
  60
  61        if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput)
  62                return 0;
  63
  64        if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK &&
  65                        (usage->hid & 0xff) == 0x82) {
  66                struct input_dev *input = field->hidinput->input;
  67                input_event(input, usage->type, usage->code, 1);
  68                input_sync(input);
  69                input_event(input, usage->type, usage->code, 0);
  70                input_sync(input);
  71                return 1;
  72        }
  73
  74        return 0;
  75}
  76
  77static const struct hid_device_id gyration_devices[] = {
  78        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
  79        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
  80        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
  81        { }
  82};
  83MODULE_DEVICE_TABLE(hid, gyration_devices);
  84
  85static struct hid_driver gyration_driver = {
  86        .name = "gyration",
  87        .id_table = gyration_devices,
  88        .input_mapping = gyration_input_mapping,
  89        .event = gyration_event,
  90};
  91module_hid_driver(gyration_driver);
  92
  93MODULE_LICENSE("GPL");
  94