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) 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))
  28 static 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
  58 static 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
  78 static 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 };
  84 MODULE_DEVICE_TABLE(hid, gyration_devices);
  85
  86 static 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
  93 static int __init gyration_init(void)
  94 {
  95         return hid_register_driver(&gyration_driver);
  96 }
  97
  98 static void __exit gyration_exit(void)
  99 {
 100         hid_unregister_driver(&gyration_driver);
 101 }
 102
 103 module_init(gyration_init);
 104 module_exit(gyration_exit);
 105 MODULE_LICENSE("GPL");