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

   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 *  HID driver for some gyration "special" devices
   4 *
   5 *  Copyright (c) 1999 Andreas Gal
   6 *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
   7 *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
   8 *  Copyright (c) 2008 Jiri Slaby
   9 *  Copyright (c) 2006-2008 Jiri Kosina
  10 */
  11
  12/*
  13 */
  14
  15#include <linux/device.h>
  16#include <linux/input.h>
  17#include <linux/hid.h>
  18#include <linux/module.h>
  19
  20#include "hid-ids.h"
  21
  22#define gy_map_key_clear(c)     hid_map_usage_clear(hi, usage, bit, max, \
  23                                        EV_KEY, (c))
  24static int gyration_input_mapping(struct hid_device *hdev, struct hid_input *hi,
  25                struct hid_field *field, struct hid_usage *usage,
  26                unsigned long **bit, int *max)
  27{
  28        if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
  29                return 0;
  30
  31        set_bit(EV_REP, hi->input->evbit);
  32        switch (usage->hid & HID_USAGE) {
  33        /* Reported on Gyration MCE Remote */
  34        case 0x00d: gy_map_key_clear(KEY_HOME);         break;
  35        case 0x024: gy_map_key_clear(KEY_DVD);          break;
  36        case 0x025: gy_map_key_clear(KEY_PVR);          break;
  37        case 0x046: gy_map_key_clear(KEY_MEDIA);        break;
  38        case 0x047: gy_map_key_clear(KEY_MP3);          break;
  39        case 0x048: gy_map_key_clear(KEY_MEDIA);        break;
  40        case 0x049: gy_map_key_clear(KEY_CAMERA);       break;
  41        case 0x04a: gy_map_key_clear(KEY_VIDEO);        break;
  42        case 0x05a: gy_map_key_clear(KEY_TEXT);         break;
  43        case 0x05b: gy_map_key_clear(KEY_RED);          break;
  44        case 0x05c: gy_map_key_clear(KEY_GREEN);        break;
  45        case 0x05d: gy_map_key_clear(KEY_YELLOW);       break;
  46        case 0x05e: gy_map_key_clear(KEY_BLUE);         break;
  47
  48        default:
  49                return 0;
  50        }
  51        return 1;
  52}
  53
  54static int gyration_event(struct hid_device *hdev, struct hid_field *field,
  55                struct hid_usage *usage, __s32 value)
  56{
  57
  58        if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput)
  59                return 0;
  60
  61        if ((usage->hid & HID_USAGE_PAGE) == HID_UP_GENDESK &&
  62                        (usage->hid & 0xff) == 0x82) {
  63                struct input_dev *input = field->hidinput->input;
  64                input_event(input, usage->type, usage->code, 1);
  65                input_sync(input);
  66                input_event(input, usage->type, usage->code, 0);
  67                input_sync(input);
  68                return 1;
  69        }
  70
  71        return 0;
  72}
  73
  74static const struct hid_device_id gyration_devices[] = {
  75        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
  76        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
  77        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
  78        { }
  79};
  80MODULE_DEVICE_TABLE(hid, gyration_devices);
  81
  82static struct hid_driver gyration_driver = {
  83        .name = "gyration",
  84        .id_table = gyration_devices,
  85        .input_mapping = gyration_input_mapping,
  86        .event = gyration_event,
  87};
  88module_hid_driver(gyration_driver);
  89
  90MODULE_LICENSE("GPL");
  91