drivers/hid/hid-chicony.c

   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))
  28 static 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
  54 static const struct hid_device_id ch_devices[] = {
  55         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
  56         { }
  57 };
  58 MODULE_DEVICE_TABLE(hid, ch_devices);
  59
  60 static struct hid_driver ch_driver = {
  61         .name = "chicony",
  62         .id_table = ch_devices,
  63         .input_mapping = ch_input_mapping,
  64 };
  65
  66 static int ch_init(void)
  67 {
  68         return hid_register_driver(&ch_driver);
  69 }
  70
  71 static void ch_exit(void)
  72 {
  73         hid_unregister_driver(&ch_driver);
  74 }
  75
  76 module_init(ch_init);
  77 module_exit(ch_exit);
  78 MODULE_LICENSE("GPL");
  79
  80 HID_COMPAT_LOAD_DRIVER(chicony);