xorg-server-1.4/hw/dmx/input/usb-mouse.c

   1 /*
   2  * Copyright 2002 Red Hat Inc., Durham, North Carolina.
   3  *
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining
   7  * a copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation on the rights to use, copy, modify, merge,
  10  * publish, distribute, sublicense, and/or sell copies of the Software,
  11  * and to permit persons to whom the Software is furnished to do so,
  12  * subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial
  16  * portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  21  * NON-INFRINGEMENT.  IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
  22  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  23  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  25  * SOFTWARE.
  26  */
  27
  28 /*
  29  * Authors:
  30  *   Rickard E. (Rik) Faith <faith@redhat.com>
  31  *
  32  */
  33
  34 /** \file
  35  *
  36  * This code implements a low-level device driver for a USB mouse. */
  37
  38 #ifdef HAVE_DMX_CONFIG_H
  39 #include <dmx-config.h>
  40 #endif
  41
  42 #include "usb-private.h"
  43
  44 /*****************************************************************************/
  45 /* Define some macros to make it easier to move this file to another
  46  * part of the Xserver tree.  All calls to the dmx* layer are #defined
  47  * here for the .c file.  The .h file will also have to be edited. */
  48 #include "usb-mouse.h"
  49
  50 #define GETPRIV       myPrivate *priv                            \
  51                       = ((DMXLocalInputInfoPtr)(pDev->devicePrivate))->private
  52
  53 #define LOG0(f)       dmxLog(dmxDebug,f)
  54 #define LOG1(f,a)     dmxLog(dmxDebug,f,a)
  55 #define LOG2(f,a,b)   dmxLog(dmxDebug,f,a,b)
  56 #define LOG3(f,a,b,c) dmxLog(dmxDebug,f,a,b,c)
  57 #define FATAL0(f)     dmxLog(dmxFatal,f)
  58 #define FATAL1(f,a)   dmxLog(dmxFatal,f,a)
  59 #define FATAL2(f,a,b) dmxLog(dmxFatal,f,a,b)
  60 #define MOTIONPROC    dmxMotionProcPtr
  61 #define ENQUEUEPROC   dmxEnqueueProcPtr
  62 #define CHECKPROC     dmxCheckSpecialProcPtr
  63 #define BLOCK         DMXBlockType
  64
  65 /* End of interface definitions. */
  66 /*****************************************************************************/
  67
  68 /** Read the USB device using #usbRead. */
  69 void mouUSBRead(DevicePtr pDev,
  70                 MOTIONPROC motion,
  71                 ENQUEUEPROC enqueue,
  72                 CHECKPROC checkspecial,
  73                 BLOCK block)
  74 {
  75     usbRead(pDev, motion, enqueue, BTN_MISC, block);
  76 }
  77
  78 /** Initialize \a pDev using #usbInit. */
  79 void mouUSBInit(DevicePtr pDev)
  80 {
  81     usbInit(pDev, usbMouse);
  82 }
  83
  84 /** Turn \a pDev on (i.e., take input from \a pDev). */
  85 int mouUSBOn(DevicePtr pDev)
  86 {
  87     GETPRIV;
  88
  89     if (priv->fd < 0) mouUSBInit(pDev);
  90     return priv->fd;
  91 }
  92
  93 static void mouUSBGetMap(DevicePtr pDev, unsigned char *map, int *nButtons)
  94 {
  95     int i;
  96
  97     if (nButtons) *nButtons = 5;
  98     if (map) for (i = 0; i <= *nButtons; i++) map[i] = i;
  99 }
 100
 101 /** Fill the \a info structure with information needed to initialize \a
 102  * pDev. */
 103 void mouUSBGetInfo(DevicePtr pDev, DMXLocalInitInfoPtr info)
 104 {
 105     static KeySym keyboard_mapping = NoSymbol;
 106
 107     info->buttonClass        = 1;
 108     mouUSBGetMap(pDev, info->map, &info->numButtons);
 109     info->valuatorClass      = 1;
 110     info->numRelAxes         = 2;
 111     info->minval[0]          = 0;
 112     info->maxval[0]          = 0;
 113     info->res[0]             = 1;
 114     info->minres[0]          = 0;
 115     info->maxres[0]          = 1;
 116     info->ptrFeedbackClass   = 1;
 117
 118                                 /* Some USB mice devices return key
 119                                  * events from their pair'd
 120                                  * keyboard...  */
 121     info->keyClass           = 1;
 122     info->keySyms.minKeyCode = 8;
 123     info->keySyms.maxKeyCode = 8;
 124     info->keySyms.mapWidth   = 1;
 125     info->keySyms.map        = &keyboard_mapping;
 126 }