drivers/usb/input/hid-ff.c

   1 /*
   2  * $Id: hid-ff.c,v 1.2 2002/04/18 22:02:47 jdeneux Exp $
   3  *
   4  *  Force feedback support for hid devices.
   5  *  Not all hid devices use the same protocol. For example, some use PID,
   6  *  other use their own proprietary procotol.
   7  *
   8  *  Copyright (c) 2002-2004 Johann Deneux
   9  */
  10
  11 /*
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  25  *
  26  * Should you need to contact me, the author, you can do so by
  27  * e-mail - mail your message to <johann.deneux@it.uu.se>
  28  */
  29
  30 #include <linux/input.h>
  31
  32 #undef DEBUG
  33 #include <linux/usb.h>
  34
  35 #include "hid.h"
  36
  37 /* Drivers' initializing functions */
  38 extern int hid_lgff_init(struct hid_device* hid);
  39 extern int hid_lg3d_init(struct hid_device* hid);
  40 extern int hid_pid_init(struct hid_device* hid);
  41 extern int hid_tmff_init(struct hid_device* hid);
  42
  43 /*
  44  * This table contains pointers to initializers. To add support for new
  45  * devices, you need to add the USB vendor and product ids here.
  46  */
  47 struct hid_ff_initializer {
  48         u16 idVendor;
  49         u16 idProduct;
  50         int (*init)(struct hid_device*);
  51 };
  52
  53 static struct hid_ff_initializer inits[] = {
  54 #ifdef CONFIG_LOGITECH_FF
  55         {0x46d, 0xc211, hid_lgff_init}, // Logitech Cordless rumble pad
  56         {0x46d, 0xc283, hid_lgff_init}, // Logitech Wingman Force 3d
  57         {0x46d, 0xc295, hid_lgff_init}, // Logitech MOMO force wheel
  58         {0x46d, 0xc219, hid_lgff_init}, // Logitech Cordless rumble pad 2
  59 #endif
  60 #ifdef CONFIG_HID_PID
  61         {0x45e, 0x001b, hid_pid_init},
  62 #endif
  63 #ifdef CONFIG_THRUSTMASTER_FF
  64         {0x44f, 0xb304, hid_tmff_init},
  65 #endif
  66         {0, 0, NULL} /* Terminating entry */
  67 };
  68
  69 static struct hid_ff_initializer *hid_get_ff_init(__u16 idVendor,
  70                                                   __u16 idProduct)
  71 {
  72         struct hid_ff_initializer *init;
  73         for (init = inits;
  74              init->idVendor
  75              && !(init->idVendor == idVendor
  76                   && init->idProduct == idProduct);
  77              init++);
  78
  79         return init->idVendor? init : NULL;
  80 }
  81
  82 int hid_ff_init(struct hid_device* hid)
  83 {
  84         struct hid_ff_initializer *init;
  85
  86         init = hid_get_ff_init(le16_to_cpu(hid->dev->descriptor.idVendor),
  87                                le16_to_cpu(hid->dev->descriptor.idProduct));
  88
  89         if (!init) {
  90                 dbg("hid_ff_init could not find initializer");
  91                 return -ENOSYS;
  92         }
  93         return init->init(hid);
  94 }