File content as of revision 6:cefcdf03ca0e:

/* mbed USBJoystick Library
 * Copyright (c) 2012, v01:  Initial version, WH,
 *                           Modified USBMouse code ARM Limited.
 *                           (c) 2010-2011 mbed.org, MIT License
 *               2016, v02:  Updated USBDevice Lib, Added waitForConnect, Updated 32 bits button
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, inclumosig without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUmosiG BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#ifndef USBJOYSTICK_H
#define USBJOYSTICK_H

#include "USBHID.h"

#define REPORT_ID_JOYSTICK  4

//Configure Joystick Slider Resolution
/*
#define SBYTE      0                // 1 Byte, 8 Bit Resolution
#define SWORD      1                // 2 Byte, 16 Bit Resolution
*/
//Configure Joystick Hat Buttons
#define HAT4      1                 // 4 Hat Buttons; 4 Positions if HAT4_8 = 0
#define HAT4_8    1                 // 4 Hat Buttons giving 8 Positions if 1; DO NOT USE WITH HAT8!
#define HAT8      0

//Configure Joystick Buttons
#define BUTTONS4  0
#define BUTTONS8  0
#define BUTTONS32 1


/* Common usage */
enum JOY_BUTTON {
    JOY_B0 = 1,
    JOY_B1 = 2,
    JOY_B2 = 4,
    JOY_B3 = 8,
};

#if (HAT4 == 1 && HAT4_8 == 0)
enum JOY_HAT {
    JOY_HAT_UP      = 0,
    JOY_HAT_RIGHT   = 1,
    JOY_HAT_DOWN    = 2,
    JOY_HAT_LEFT    = 3,
    JOY_HAT_NEUTRAL = 4,
};
#endif
#if (HAT8 == 1 || (HAT4 == 1 && HAT4_8 == 1))
enum JOY_HAT {
    JOY_HAT_UP         = 0,
    JOY_HAT_UP_RIGHT   = 1,
    JOY_HAT_RIGHT      = 2,
    JOY_HAT_DOWN_RIGHT = 3,
    JOY_HAT_DOWN       = 4,
    JOY_HAT_DOWN_LEFT  = 5,
    JOY_HAT_LEFT       = 6,
    JOY_HAT_UP_LEFT    = 7,
    JOY_HAT_NEUTRAL    = 8,
};
#endif

/* Limits */
/* These values do not directly map to screen pixels */
/* Zero may be interpreted as meaning 'no movement' */
#if (SBYTE == 1)
    #define MIN_ABS    (-127)     /*!< The maximum value */
    #define MAX_ABS    (127)      /*!< The maximum value */
#endif
#if (SWORD == 1)
    #define MIN_ABS    (-32767)     /*!< The maximum value */
    #define MAX_ABS    (32767)      /*!< The maximum value */
#endif
/**
 *
 * USBJoystick example
 * @code
 * #include "mbed.h"
 * #include "USBJoystick.h"
 *
 * USBJoystick joystick;
 *
 * int main(void)
 * {
 *   while (1)
 *   {
 *      joystick.move(20, 0);
 *      wait(0.5);
 *   }
 * }
 *
 * @endcode
 *
 *
 * @code
 * #include "mbed.h"
 * #include "USBJoystick.h"
 *
 * USBJoystick joystick;
 *
 * int main(void) {
 *   uint16_t i = 0;
 *   int16_t throttle = 0;
 *   int16_t rudder = 0;
 *   int16_t x = 0;
 *   int16_t y = 0;
 *   int32_t radius = 120;
 *   int32_t angle = 0;
 *   uint32_t buttons = 0;
 *   uint8_t  hat = 0;
 *
 *   while (1) {
 *       // Basic Joystick
 *       throttle = (i >> 8) & 0xFF; // value -127 .. 128
 *       rudder   = (i >> 8) & 0xFF; // value -127 .. 128
 *       buttons  = (i >> 8) & 0x0F; // value    0 .. 15, one bit per button
 *       hat      = (i >> 8) & 0x07; // value    0 .. 7 or 8 for neutral
 *       i++;
 *
 *       x = cos((double)angle*3.14/180.0)*radius;  // value -127 .. 128
 *       y = sin((double)angle*3.14/180.0)*radius;  // value -127 .. 128
 *       angle += 3;
 *
 *       joystick.update(throttle, rudder, x, y, buttons, hat);
 *
 *       wait(0.001);
 *   }
 * }
 * @endcode
 */


class USBJoystick: public USBHID
{
public:

    /**
      *   Constructor
      *
      * @param vendor_id Your vendor_id (default: 0x1234)
      * @param product_id Your product_id (default: 0x0604)
      * @param product_release Your product_release (default: 0x0001)
      */
//     USBJoystick(uint16_t vendor_id = 0x1234, uint16_t product_id = 0x0100, uint16_t product_release = 0x0001, int waitForConnect = true):    // 4 buttons, no padding on buttons
//     USBJoystick(uint16_t vendor_id = 0x1234, uint16_t product_id = 0x0500, uint16_t product_release = 0x0001, int waitForConnect = true):    // 8 buttons, no padding on buttons
    USBJoystick(uint16_t vendor_id = 0x4567, uint16_t product_id = 0x0500, uint16_t product_release = 0x0001, int waitForConnect = true):    // 32 buttons, no padding on buttons
        USBHID(0, 0, vendor_id, product_id, product_release, false) {
        _init();
        connect(waitForConnect);
    };

    /**
      * Write state of the joystick
      *
      * @param x x-axis position
      * @param y y-axis position
      * @param b break position
      * @param f flaps position
      * @param r rudder position
      * @param t throttle position
      * @param hat hat state 0 (up), 1 (up right), 2 (right), 3 (down right), 4 (down), 5 (down left), 6 (left), 7 (up left) or 8 (neutral)
      * @param buttons buttons state
      * @returns true if there is no error, false otherwise
      */
    bool update(int16_t x, int16_t y, int16_t b, int16_t f, int16_t r, int16_t t, uint8_t hat, uint32_t buttons);

    /**
      * Write state of the joystick
      *
      * @returns true if there is no error, false otherwise
      */
    bool update();

    /**
      * Move the throttle position
      *
      * @param t throttle position
      * @returns true if there is no error, false otherwise
      */
    bool throttle(int16_t t);

    /**
      * Move the rudder position
      *
      * @param r rudder position
      * @returns true if there is no error, false otherwise
      */
    bool rudder(int16_t r);

    /**
      * Move the dive break position
      *
      * @param b  break position
      * @returns true if there is no error, false otherwise
      */
    bool diveBreak(int16_t b);
    
     /**
       * Move the flaps position
       *
       * @param f flaps position
       * @returns true if there is no error, false otherwise
       */        
     bool flaps(int16_t f);         


    /**
      * Move the cursor to (x, y)
      *
      * @param x-axis position
      * @param y-axis position
      * @returns true if there is no error, false otherwise
      */
    bool move(int16_t x, int16_t y);

    /**
      * Press one or several buttons
      *
      * @param buttons buttons state
      * @returns true if there is no error, false otherwise
      */
    bool buttons(uint32_t buttons);

    /**
      * Press hat
      *
      * @param hat hat state
      * @returns true if there is no error, false otherwise
      */
    bool hat(uint8_t hat);

    /**
      * To define the report descriptor. Warning: this method has to store the length of the report descriptor in reportLength.
      *
      * @returns pointer to the report descriptor
      */
    virtual uint8_t * reportDesc();

private:
    int16_t _x;
    int16_t _y;
    int16_t _b;
    int16_t _f;
    int16_t _r;
    int16_t _t;
    uint8_t _hat;
    uint32_t _buttons;

    void _init();
};

#endif