USBMouse.h

00001 /* Copyright (c) 2010-2011 mbed.org, MIT License
00002 *
00003 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
00004 * and associated documentation files (the "Software"), to deal in the Software without
00005 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
00006 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
00007 * Software is furnished to do so, subject to the following conditions:
00008 *
00009 * The above copyright notice and this permission notice shall be included in all copies or
00010 * substantial portions of the Software.
00011 *
00012 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
00013 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00014 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
00015 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00016 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00017 */
00018 
00019 #ifndef USBMOUSE_H
00020 #define USBMOUSE_H
00021 
00022 #include "USBHID.h"
00023 
00024 #define REPORT_ID_MOUSE   2
00025 
00026 /* Common usage */
00027 
00028 enum MOUSE_BUTTON
00029 {
00030     MOUSE_LEFT = 1,
00031     MOUSE_RIGHT = 2,
00032     MOUSE_MIDDLE = 4,
00033 };
00034 
00035 /* X and Y limits */
00036 /* These values do not directly map to screen pixels */
00037 /* Zero may be interpreted as meaning 'no movement' */
00038 #define X_MIN_ABS    (1)        /*!< Minimum value on x-axis */  
00039 #define Y_MIN_ABS    (1)        /*!< Minimum value on y-axis */
00040 #define X_MAX_ABS    (0x7fff)   /*!< Maximum value on x-axis */
00041 #define Y_MAX_ABS    (0x7fff)   /*!< Maximum value on y-axis */
00042 
00043 #define X_MIN_REL    (-127)     /*!< The maximum value that we can move to the left on the x-axis */
00044 #define Y_MIN_REL    (-127)     /*!< The maximum value that we can move up on the y-axis */
00045 #define X_MAX_REL    (127)      /*!< The maximum value that we can move to the right on the x-axis */
00046 #define Y_MAX_REL    (127)      /*!< The maximum value that we can move down on the y-axis */
00047 
00048 enum MOUSE_TYPE
00049 {
00050     ABS_MOUSE,
00051     REL_MOUSE,
00052 };
00053 
00054 /**
00055  *
00056  * USBMouse example
00057  * @code
00058  * #include "mbed.h"
00059  * #include "USBMouse.h"
00060  *
00061  * USBMouse mouse;
00062  *
00063  * int main(void)
00064  * {
00065  *   while (1)
00066  *   {
00067  *      mouse.move(20, 0);
00068  *      wait(0.5);
00069  *   }
00070  * }
00071  *
00072  * @endcode
00073  *
00074  *
00075  * @code
00076  * #include "mbed.h"
00077  * #include "USBMouse.h"
00078  * #include <math.h>
00079  *
00080  * USBMouse mouse(ABS_MOUSE);
00081  *
00082  * int main(void)
00083  * {
00084  *   uint16_t x_center = (X_MAX_ABS - X_MIN_ABS)/2;
00085  *   uint16_t y_center = (Y_MAX_ABS - Y_MIN_ABS)/2;
00086  *   uint16_t x_screen = 0;
00087  *   uint16_t y_screen = 0;
00088  *   
00089  *   uint32_t x_origin = x_center;
00090  *   uint32_t y_origin = y_center;
00091  *   uint32_t radius = 5000;
00092  *   uint32_t angle = 0;
00093  *
00094  *   while (1)
00095  *   {
00096  *       x_screen = x_origin + cos((double)angle*3.14/180.0)*radius;
00097  *       y_screen = y_origin + sin((double)angle*3.14/180.0)*radius;
00098  *       
00099  *       mouse.move(x_screen, y_screen);
00100  *       angle += 3;
00101  *       wait(0.01);
00102  *   }
00103  * }
00104  *
00105  * @endcode
00106  */
00107 class USBMouse: public USBHID
00108 {
00109     public:
00110         
00111         /**
00112         *   Constructor
00113         *
00114         * @param mouse_type Mouse type: ABS_MOUSE (absolute mouse) or REL_MOUSE (relative mouse) (default: REL_MOUSE)
00115         * @param vendor_id Your vendor_id (default: 0x1234)
00116         * @param product_id Your product_id (default: 0x0001)
00117         * @param product_release Your preoduct_release (default: 0x0001)
00118         *
00119         */
00120         USBMouse(MOUSE_TYPE mouse_type = REL_MOUSE, uint16_t vendor_id = 0x1234, uint16_t product_id = 0x0001, uint16_t product_release = 0x0001): 
00121             USBHID(0, 0, vendor_id, product_id, product_release, false)
00122             { 
00123                 button = 0;
00124                 this->mouse_type = mouse_type;
00125                 connect();
00126             };
00127         
00128         /**
00129         * Write a state of the mouse
00130         *
00131         * @param x x-axis position
00132         * @param y y-axis position
00133         * @param buttons buttons state (first bit represents MOUSE_LEFT, second bit MOUSE_RIGHT and third bit MOUSE_MIDDLE)
00134         * @param z wheel state (>0 to scroll down, <0 to scroll up)
00135         * @returns true if there is no error, false otherwise
00136         */
00137         bool update(int16_t x, int16_t y, uint8_t buttons, int8_t z);
00138         
00139         
00140         /**
00141         * Move the cursor to (x, y)
00142         *
00143         * @param x-axis position
00144         * @param y-axis position
00145         * @returns true if there is no error, false otherwise
00146         */
00147         bool move(int16_t x, int16_t y);
00148         
00149         /**
00150         * Press one or several buttons
00151         *
00152         * @param button button state (ex: press(MOUSE_LEFT))
00153         * @returns true if there is no error, false otherwise
00154         */
00155         bool press(uint8_t button);
00156         
00157         /**
00158         * Release one or several buttons
00159         *
00160         * @param button button state (ex: release(MOUSE_LEFT))
00161         * @returns true if there is no error, false otherwise
00162         */
00163         bool release(uint8_t button);
00164         
00165         /**
00166         * Double click (MOUSE_LEFT)
00167         *
00168         * @returns true if there is no error, false otherwise
00169         */
00170         bool doubleClick();
00171         
00172         /**
00173         * Click
00174         *
00175         * @param button state of the buttons ( ex: clic(MOUSE_LEFT))
00176         * @returns true if there is no error, false otherwise
00177         */
00178         bool click(uint8_t button); 
00179         
00180         /**
00181         * Scrolling
00182         *
00183         * @param z value of the wheel (>0 to go down, <0 to go up)
00184         * @returns true if there is no error, false otherwise
00185         */
00186         bool scroll(int8_t z);
00187         
00188         /*
00189         * To define the report descriptor. Warning: this method has to store the length of the report descriptor in reportLength.
00190         *
00191         * @returns pointer to the report descriptor
00192         */
00193         virtual uint8_t * reportDesc();
00194 
00195     protected:
00196         /*
00197         * Get configuration descriptor
00198         *
00199         * @returns pointer to the configuration descriptor
00200         */
00201         virtual uint8_t * configurationDesc();
00202         
00203     private:
00204         MOUSE_TYPE mouse_type;
00205         uint8_t button;
00206         bool mouseSend(int8_t x, int8_t y, uint8_t buttons, int8_t z);
00207 };
00208 
00209 #endif