tmk_core/tool/mbed/mbed-sdk/libraries/USBHost/USBHostHID/USBHostMouse.h

   1 /* mbed USBHost Library
   2  * Copyright (c) 2006-2013 ARM Limited
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #ifndef USBHOSTMOUSE_H
  18 #define USBHOSTMOUSE_H
  19
  20 #include "USBHostConf.h"
  21
  22 #if USBHOST_MOUSE
  23
  24 #include "USBHost.h"
  25
  26 /**
  27  * A class to communicate a USB mouse
  28  */
  29 class USBHostMouse : public IUSBEnumerator {
  30 public:
  31
  32     /**
  33     * Constructor
  34     */
  35     USBHostMouse();
  36
  37     /**
  38      * Try to connect a mouse device
  39      *
  40      * @return true if connection was successful
  41      */
  42     bool connect();
  43
  44     /**
  45     * Check if a mouse is connected
  46     *
  47     * @returns true if a mouse is connected
  48     */
  49     bool connected();
  50
  51     /**
  52      * Attach a callback called when a mouse event is received
  53      *
  54      * @param ptr function pointer
  55      */
  56     inline void attachEvent(void (*ptr)(uint8_t buttons, int8_t x, int8_t y, int8_t z)) {
  57         if (ptr != NULL) {
  58             onUpdate = ptr;
  59         }
  60     }
  61
  62     /**
  63      * Attach a callback called when the button state changes
  64      *
  65      * @param ptr function pointer
  66      */
  67     inline void attachButtonEvent(void (*ptr)(uint8_t buttons)) {
  68         if (ptr != NULL) {
  69             onButtonUpdate = ptr;
  70         }
  71     }
  72
  73     /**
  74      * Attach a callback called when the X axis value changes
  75      *
  76      * @param ptr function pointer
  77      */
  78     inline void attachXEvent(void (*ptr)(int8_t x)) {
  79         if (ptr != NULL) {
  80             onXUpdate = ptr;
  81         }
  82     }
  83
  84     /**
  85      * Attach a callback called when the Y axis value changes
  86      *
  87      * @param ptr function pointer
  88      */
  89     inline void attachYEvent(void (*ptr)(int8_t y)) {
  90         if (ptr != NULL) {
  91             onYUpdate = ptr;
  92         }
  93     }
  94
  95     /**
  96      * Attach a callback called when the Z axis value changes (scrolling)
  97      *
  98      * @param ptr function pointer
  99      */
 100     inline void attachZEvent(void (*ptr)(int8_t z)) {
 101         if (ptr != NULL) {
 102             onZUpdate = ptr;
 103         }
 104     }
 105
 106 protected:
 107     //From IUSBEnumerator
 108     virtual void setVidPid(uint16_t vid, uint16_t pid);
 109     virtual bool parseInterface(uint8_t intf_nb, uint8_t intf_class, uint8_t intf_subclass, uint8_t intf_protocol); //Must return true if the interface should be parsed
 110     virtual bool useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir); //Must return true if the endpoint will be used
 111
 112 private:
 113     USBHost * host;
 114     USBDeviceConnected * dev;
 115     USBEndpoint * int_in;
 116     uint8_t report[4];
 117
 118     bool dev_connected;
 119     bool mouse_device_found;
 120     int mouse_intf;
 121
 122     uint8_t buttons;
 123     int8_t x;
 124     int8_t y;
 125     int8_t z;
 126
 127     void rxHandler();
 128     void (*onUpdate)(uint8_t buttons, int8_t x, int8_t y, int8_t z);
 129     void (*onButtonUpdate)(uint8_t buttons);
 130     void (*onXUpdate)(int8_t x);
 131     void (*onYUpdate)(int8_t y);
 132     void (*onZUpdate)(int8_t z);
 133     int report_id;
 134     void init();
 135 };
 136
 137 #endif
 138
 139 #endif