This is early stages of my project, the idea of this project is to be able to mix a guitar with windows sounds in reverse such as instrumental background music or trance music perhaps or maybe another fellow guitarist you may have downloaded from the internet. Microphone or guitar pin is p19 I would use a microphone for drums:) and that it for the moment, the code makes the mbed act as usb speaker that excepts a guitar or microphone input, but with a twist it all in reverse like a guitar reverse effects pedal but only you can mix anything you can get from the internet or any windows sound.

Dependencies:   mbed

USBDevice/USBHID/USBMouseKeyboard.cpp

Committer:
mbed2f
Date:
2012-01-08
Revision:
0:7610d342c76e

File content as of revision 0:7610d342c76e:

/* Copyright (c) 2010-2011 mbed.org, MIT License
*
* 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, including 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, INCLUDING
* 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.
*/

#include "stdint.h"
#include "USBMouseKeyboard.h"

typedef struct {
    unsigned char usage;
    unsigned char modifier;
} KEYMAP;

#ifdef US_KEYBOARD
/* US keyboard (as HID standard) */
#define KEYMAP_SIZE (148)
const KEYMAP keymap[KEYMAP_SIZE] = {
    {0, 0},             /* NUL */
    {0, 0},             /* SOH */
    {0, 0},             /* STX */
    {0, 0},             /* ETX */
    {0, 0},             /* EOT */
    {0, 0},             /* ENQ */
    {0, 0},             /* ACK */
    {0, 0},             /* BEL */
    {0x2a, 0},          /* BS  */  /* Keyboard Delete (Backspace) */
    {0x2b, 0},          /* TAB */  /* Keyboard Tab */
    {0x28, 0},          /* LF  */  /* Keyboard Return (Enter) */
    {0, 0},             /* VT  */
    {0, 0},             /* FF  */
    {0, 0},             /* CR  */
    {0, 0},             /* SO  */
    {0, 0},             /* SI  */
    {0, 0},             /* DEL */
    {0, 0},             /* DC1 */
    {0, 0},             /* DC2 */
    {0, 0},             /* DC3 */
    {0, 0},             /* DC4 */
    {0, 0},             /* NAK */
    {0, 0},             /* SYN */
    {0, 0},             /* ETB */
    {0, 0},             /* CAN */
    {0, 0},             /* EM  */
    {0, 0},             /* SUB */
    {0, 0},             /* ESC */
    {0, 0},             /* FS  */
    {0, 0},             /* GS  */
    {0, 0},             /* RS  */
    {0, 0},             /* US  */
    {0x2c, 0},          /*   */
    {0x1e, KEY_SHIFT},      /* ! */
    {0x34, KEY_SHIFT},      /* " */
    {0x20, KEY_SHIFT},      /* # */
    {0x21, KEY_SHIFT},      /* $ */
    {0x22, KEY_SHIFT},      /* % */
    {0x24, KEY_SHIFT},      /* & */
    {0x34, 0},          /* ' */
    {0x26, KEY_SHIFT},      /* ( */
    {0x27, KEY_SHIFT},      /* ) */
    {0x25, KEY_SHIFT},      /* * */
    {0x2e, KEY_SHIFT},      /* + */
    {0x36, 0},          /* , */
    {0x2d, 0},          /* - */
    {0x37, 0},          /* . */
    {0x38, 0},          /* / */
    {0x27, 0},          /* 0 */
    {0x1e, 0},          /* 1 */
    {0x1f, 0},          /* 2 */
    {0x20, 0},          /* 3 */
    {0x21, 0},          /* 4 */
    {0x22, 0},          /* 5 */
    {0x23, 0},          /* 6 */
    {0x24, 0},          /* 7 */
    {0x25, 0},          /* 8 */
    {0x26, 0},          /* 9 */
    {0x33, KEY_SHIFT},      /* : */
    {0x33, 0},          /* ; */
    {0x36, KEY_SHIFT},      /* < */
    {0x2e, 0},          /* = */
    {0x37, KEY_SHIFT},      /* > */
    {0x38, KEY_SHIFT},      /* ? */
    {0x1f, KEY_SHIFT},      /* @ */
    {0x04, KEY_SHIFT},      /* A */
    {0x05, KEY_SHIFT},      /* B */
    {0x06, KEY_SHIFT},      /* C */
    {0x07, KEY_SHIFT},      /* D */
    {0x08, KEY_SHIFT},      /* E */
    {0x09, KEY_SHIFT},      /* F */
    {0x0a, KEY_SHIFT},      /* G */
    {0x0b, KEY_SHIFT},      /* H */
    {0x0c, KEY_SHIFT},      /* I */
    {0x0d, KEY_SHIFT},      /* J */
    {0x0e, KEY_SHIFT},      /* K */
    {0x0f, KEY_SHIFT},      /* L */
    {0x10, KEY_SHIFT},      /* M */
    {0x11, KEY_SHIFT},      /* N */
    {0x12, KEY_SHIFT},      /* O */
    {0x13, KEY_SHIFT},      /* P */
    {0x14, KEY_SHIFT},      /* Q */
    {0x15, KEY_SHIFT},      /* R */
    {0x16, KEY_SHIFT},      /* S */
    {0x17, KEY_SHIFT},      /* T */
    {0x18, KEY_SHIFT},      /* U */
    {0x19, KEY_SHIFT},      /* V */
    {0x1a, KEY_SHIFT},      /* W */
    {0x1b, KEY_SHIFT},      /* X */
    {0x1c, KEY_SHIFT},      /* Y */
    {0x1d, KEY_SHIFT},      /* Z */
    {0x2f, 0},          /* [ */
    {0x31, 0},          /* \ */
    {0x30, 0},          /* ] */
    {0x23, KEY_SHIFT},      /* ^ */
    {0x2d, KEY_SHIFT},      /* _ */
    {0x35, 0},          /* ` */
    {0x04, 0},          /* a */
    {0x05, 0},          /* b */
    {0x06, 0},          /* c */
    {0x07, 0},          /* d */
    {0x08, 0},          /* e */
    {0x09, 0},          /* f */
    {0x0a, 0},          /* g */
    {0x0b, 0},          /* h */
    {0x0c, 0},          /* i */
    {0x0d, 0},          /* j */
    {0x0e, 0},          /* k */
    {0x0f, 0},          /* l */
    {0x10, 0},          /* m */
    {0x11, 0},          /* n */
    {0x12, 0},          /* o */
    {0x13, 0},          /* p */
    {0x14, 0},          /* q */
    {0x15, 0},          /* r */
    {0x16, 0},          /* s */
    {0x17, 0},          /* t */
    {0x18, 0},          /* u */
    {0x19, 0},          /* v */
    {0x1a, 0},          /* w */
    {0x1b, 0},          /* x */
    {0x1c, 0},          /* y */
    {0x1d, 0},          /* z */
    {0x2f, KEY_SHIFT},      /* { */
    {0x31, KEY_SHIFT},      /* | */
    {0x30, KEY_SHIFT},      /* } */
    {0x35, KEY_SHIFT},      /* ~ */
    {0,0},              /* DEL */

    {0x3a, 0},          /* F1 */
    {0x3b, 0},          /* F2 */
    {0x3c, 0},          /* F3 */
    {0x3d, 0},          /* F4 */
    {0x3e, 0},          /* F5 */
    {0x3f, 0},          /* F6 */
    {0x40, 0},          /* F7 */
    {0x41, 0},          /* F8 */
    {0x42, 0},          /* F9 */
    {0x43, 0},          /* F10 */
    {0x44, 0},          /* F11 */
    {0x45, 0},          /* F12 */

    {0x46, 0},          /* PRINT_SCREEN */
    {0x47, 0},          /* SCROLL_LOCK */
    {0x39, 0},          /* CAPS_LOCK */
    {0x53, 0},          /* NUM_LOCK */
    {0x49, 0},          /* INSERT */
    {0x4a, 0},          /* HOME */
    {0x4b, 0},          /* PAGE_UP */
    {0x4e, 0},          /* PAGE_DOWN */
};

#else
/* UK keyboard */
#define KEYMAP_SIZE (148)
const KEYMAP keymap[KEYMAP_SIZE] = {
    {0, 0},             /* NUL */
    {0, 0},             /* SOH */
    {0, 0},             /* STX */
    {0, 0},             /* ETX */
    {0, 0},             /* EOT */
    {0, 0},             /* ENQ */
    {0, 0},             /* ACK */
    {0, 0},             /* BEL */
    {0x2a, 0},          /* BS  */  /* Keyboard Delete (Backspace) */
    {0x2b, 0},          /* TAB */  /* Keyboard Tab */
    {0x28, 0},          /* LF  */  /* Keyboard Return (Enter) */
    {0, 0},             /* VT  */
    {0, 0},             /* FF  */
    {0, 0},             /* CR  */
    {0, 0},             /* SO  */
    {0, 0},             /* SI  */
    {0, 0},             /* DEL */
    {0, 0},             /* DC1 */
    {0, 0},             /* DC2 */
    {0, 0},             /* DC3 */
    {0, 0},             /* DC4 */
    {0, 0},             /* NAK */
    {0, 0},             /* SYN */
    {0, 0},             /* ETB */
    {0, 0},             /* CAN */
    {0, 0},             /* EM  */
    {0, 0},             /* SUB */
    {0, 0},             /* ESC */
    {0, 0},             /* FS  */
    {0, 0},             /* GS  */
    {0, 0},             /* RS  */
    {0, 0},             /* US  */
    {0x2c, 0},          /*   */
    {0x1e, KEY_SHIFT},      /* ! */
    {0x1f, KEY_SHIFT},      /* " */
    {0x32, 0},          /* # */
    {0x21, KEY_SHIFT},      /* $ */
    {0x22, KEY_SHIFT},      /* % */
    {0x24, KEY_SHIFT},      /* & */
    {0x34, 0},          /* ' */
    {0x26, KEY_SHIFT},      /* ( */
    {0x27, KEY_SHIFT},      /* ) */
    {0x25, KEY_SHIFT},      /* * */
    {0x2e, KEY_SHIFT},      /* + */
    {0x36, 0},          /* , */
    {0x2d, 0},          /* - */
    {0x37, 0},          /* . */
    {0x38, 0},          /* / */
    {0x27, 0},          /* 0 */
    {0x1e, 0},          /* 1 */
    {0x1f, 0},          /* 2 */
    {0x20, 0},          /* 3 */
    {0x21, 0},          /* 4 */
    {0x22, 0},          /* 5 */
    {0x23, 0},          /* 6 */
    {0x24, 0},          /* 7 */
    {0x25, 0},          /* 8 */
    {0x26, 0},          /* 9 */
    {0x33, KEY_SHIFT},      /* : */
    {0x33, 0},          /* ; */
    {0x36, KEY_SHIFT},      /* < */
    {0x2e, 0},          /* = */
    {0x37, KEY_SHIFT},      /* > */
    {0x38, KEY_SHIFT},      /* ? */
    {0x34, KEY_SHIFT},      /* @ */
    {0x04, KEY_SHIFT},      /* A */
    {0x05, KEY_SHIFT},      /* B */
    {0x06, KEY_SHIFT},      /* C */
    {0x07, KEY_SHIFT},      /* D */
    {0x08, KEY_SHIFT},      /* E */
    {0x09, KEY_SHIFT},      /* F */
    {0x0a, KEY_SHIFT},      /* G */
    {0x0b, KEY_SHIFT},      /* H */
    {0x0c, KEY_SHIFT},      /* I */
    {0x0d, KEY_SHIFT},      /* J */
    {0x0e, KEY_SHIFT},      /* K */
    {0x0f, KEY_SHIFT},      /* L */
    {0x10, KEY_SHIFT},      /* M */
    {0x11, KEY_SHIFT},      /* N */
    {0x12, KEY_SHIFT},      /* O */
    {0x13, KEY_SHIFT},      /* P */
    {0x14, KEY_SHIFT},      /* Q */
    {0x15, KEY_SHIFT},      /* R */
    {0x16, KEY_SHIFT},      /* S */
    {0x17, KEY_SHIFT},      /* T */
    {0x18, KEY_SHIFT},      /* U */
    {0x19, KEY_SHIFT},      /* V */
    {0x1a, KEY_SHIFT},      /* W */
    {0x1b, KEY_SHIFT},      /* X */
    {0x1c, KEY_SHIFT},      /* Y */
    {0x1d, KEY_SHIFT},      /* Z */
    {0x2f, 0},          /* [ */
    {0x64, 0},          /* \ */
    {0x30, 0},          /* ] */
    {0x23, KEY_SHIFT},      /* ^ */
    {0x2d, KEY_SHIFT},      /* _ */
    {0x35, 0},          /* ` */
    {0x04, 0},          /* a */
    {0x05, 0},          /* b */
    {0x06, 0},          /* c */
    {0x07, 0},          /* d */
    {0x08, 0},          /* e */
    {0x09, 0},          /* f */
    {0x0a, 0},          /* g */
    {0x0b, 0},          /* h */
    {0x0c, 0},          /* i */
    {0x0d, 0},          /* j */
    {0x0e, 0},          /* k */
    {0x0f, 0},          /* l */
    {0x10, 0},          /* m */
    {0x11, 0},          /* n */
    {0x12, 0},          /* o */
    {0x13, 0},          /* p */
    {0x14, 0},          /* q */
    {0x15, 0},          /* r */
    {0x16, 0},          /* s */
    {0x17, 0},          /* t */
    {0x18, 0},          /* u */
    {0x19, 0},          /* v */
    {0x1a, 0},          /* w */
    {0x1b, 0},          /* x */
    {0x1c, 0},          /* y */
    {0x1d, 0},          /* z */
    {0x2f, KEY_SHIFT},      /* { */
    {0x64, KEY_SHIFT},      /* | */
    {0x30, KEY_SHIFT},      /* } */
    {0x32, KEY_SHIFT},      /* ~ */
    {0,0},             /* DEL */

    {0x3a, 0},          /* F1 */
    {0x3b, 0},          /* F2 */
    {0x3c, 0},          /* F3 */
    {0x3d, 0},          /* F4 */
    {0x3e, 0},          /* F5 */
    {0x3f, 0},          /* F6 */
    {0x40, 0},          /* F7 */
    {0x41, 0},          /* F8 */
    {0x42, 0},          /* F9 */
    {0x43, 0},          /* F10 */
    {0x44, 0},          /* F11 */
    {0x45, 0},          /* F12 */

    {0x46, 0},          /* PRINT_SCREEN */
    {0x47, 0},          /* SCROLL_LOCK */
    {0x39, 0},          /* CAPS_LOCK */
    {0x53, 0},          /* NUM_LOCK */
    {0x49, 0},          /* INSERT */
    {0x4a, 0},          /* HOME */
    {0x4b, 0},          /* PAGE_UP */
    {0x4e, 0},          /* PAGE_DOWN */
};
#endif


uint8_t * USBMouseKeyboard::reportDesc() {
    if (mouse_type == REL_MOUSE) {
        static uint8_t reportDescriptor[] = {
                // Keyboard
                USAGE_PAGE(1),      0x01,
                USAGE(1),           0x06,
                COLLECTION(1),      0x01,
                REPORT_ID(1),       REPORT_ID_KEYBOARD,
                USAGE_PAGE(1),      0x07,
                USAGE_MINIMUM(1),       0xE0,
                USAGE_MAXIMUM(1),       0xE7,
                LOGICAL_MINIMUM(1),     0x00,
                LOGICAL_MAXIMUM(1),     0x01,
                REPORT_SIZE(1),     0x01,
                REPORT_COUNT(1),    0x08,
                INPUT(1),           0x02,
                REPORT_COUNT(1),    0x01,
                REPORT_SIZE(1),     0x08,
                INPUT(1),           0x01,
                REPORT_COUNT(1),    0x05,
                REPORT_SIZE(1),     0x01,
                USAGE_PAGE(1),      0x08,
                USAGE_MINIMUM(1),       0x01,
                USAGE_MAXIMUM(1),       0x05,
                OUTPUT(1),          0x02,
                REPORT_COUNT(1),    0x01,
                REPORT_SIZE(1),     0x03,
                OUTPUT(1),          0x01,
                REPORT_COUNT(1),    0x06,
                REPORT_SIZE(1),     0x08,
                LOGICAL_MINIMUM(1),     0x00,
                LOGICAL_MAXIMUM(2),     0xff, 0x00,
                USAGE_PAGE(1),      0x07,
                USAGE_MINIMUM(1),       0x00,
                USAGE_MAXIMUM(2),       0xff, 0x00,
                INPUT(1),           0x00,
                END_COLLECTION(0),

                // Mouse
                USAGE_PAGE(1),      0x01,           // Generic Desktop
                USAGE(1),           0x02,           // Mouse
                COLLECTION(1),      0x01,           // Application
                USAGE(1),           0x01,           // Pointer
                COLLECTION(1),      0x00,           // Physical
                REPORT_ID(1),       REPORT_ID_MOUSE,
                REPORT_COUNT(1),    0x03,
                REPORT_SIZE(1),     0x01,
                USAGE_PAGE(1),      0x09,           // Buttons
                USAGE_MINIMUM(1),       0x1,
                USAGE_MAXIMUM(1),       0x3,
                LOGICAL_MINIMUM(1),     0x00,
                LOGICAL_MAXIMUM(1),     0x01,
                INPUT(1),           0x02,
                REPORT_COUNT(1),    0x01,
                REPORT_SIZE(1),     0x05,
                INPUT(1),           0x01,
                REPORT_COUNT(1),    0x03,
                REPORT_SIZE(1),     0x08,
                USAGE_PAGE(1),      0x01,
                USAGE(1),           0x30,           // X
                USAGE(1),           0x31,           // Y
                USAGE(1),           0x38,           // scroll
                LOGICAL_MINIMUM(1),     0x81,
                LOGICAL_MAXIMUM(1),     0x7f,
                INPUT(1),           0x06,
                END_COLLECTION(0),
                END_COLLECTION(0),


                // Media Control
                USAGE_PAGE(1), 0x0C,
                USAGE(1), 0x01,
                COLLECTION(1), 0x01,
                REPORT_ID(1), REPORT_ID_VOLUME,
                USAGE_PAGE(1), 0x0C,
                LOGICAL_MINIMUM(1), 0x00,
                LOGICAL_MAXIMUM(1), 0x01,
                REPORT_SIZE(1), 0x01,
                REPORT_COUNT(1), 0x07,
                USAGE(1), 0xB5,             // Next Track
                USAGE(1), 0xB6,             // Previous Track
                USAGE(1), 0xB7,             // Stop
                USAGE(1), 0xCD,             // Play / Pause
                USAGE(1), 0xE2,             // Mute
                USAGE(1), 0xE9,             // Volume Up
                USAGE(1), 0xEA,             // Volume Down
                INPUT(1), 0x02,             // Input (Data, Variable, Absolute)
                REPORT_COUNT(1), 0x01,
                INPUT(1), 0x01,
                END_COLLECTION(0),
        };
        reportLength = sizeof(reportDescriptor);
        return reportDescriptor;
    } else if (mouse_type == ABS_MOUSE) {
        static uint8_t reportDescriptor[] = {

                // Keyboard
                USAGE_PAGE(1),      0x01,
                USAGE(1),           0x06,
                COLLECTION(1),      0x01,
                REPORT_ID(1),       REPORT_ID_KEYBOARD,
                USAGE_PAGE(1),      0x07,
                USAGE_MINIMUM(1),       0xE0,
                USAGE_MAXIMUM(1),       0xE7,
                LOGICAL_MINIMUM(1),     0x00,
                LOGICAL_MAXIMUM(1),     0x01,
                REPORT_SIZE(1),     0x01,
                REPORT_COUNT(1),    0x08,
                INPUT(1),           0x02,
                REPORT_COUNT(1),    0x01,
                REPORT_SIZE(1),     0x08,
                INPUT(1),           0x01,
                REPORT_COUNT(1),    0x05,
                REPORT_SIZE(1),     0x01,
                USAGE_PAGE(1),      0x08,
                USAGE_MINIMUM(1),       0x01,
                USAGE_MAXIMUM(1),       0x05,
                OUTPUT(1),          0x02,
                REPORT_COUNT(1),    0x01,
                REPORT_SIZE(1),     0x03,
                OUTPUT(1),          0x01,
                REPORT_COUNT(1),    0x06,
                REPORT_SIZE(1),     0x08,
                LOGICAL_MINIMUM(1),     0x00,
                LOGICAL_MAXIMUM(2),     0xff, 0x00,
                USAGE_PAGE(1),      0x07,
                USAGE_MINIMUM(1),       0x00,
                USAGE_MAXIMUM(2),       0xff, 0x00,
                INPUT(1),           0x00,
                END_COLLECTION(0),

                // Mouse
                USAGE_PAGE(1), 0x01,               // Generic Desktop
                USAGE(1), 0x02,                    // Mouse
                COLLECTION(1), 0x01,               // Application
                USAGE(1), 0x01,                    // Pointer
                COLLECTION(1), 0x00,               // Physical
                REPORT_ID(1),       REPORT_ID_MOUSE,

                USAGE_PAGE(1), 0x01,                // Generic Desktop
                USAGE(1), 0x30,                     // X
                USAGE(1), 0x31,                     // Y
                LOGICAL_MINIMUM(1), 0x00,           // 0
                LOGICAL_MAXIMUM(2), 0xff, 0x7f,     // 32767
                REPORT_SIZE(1), 0x10,
                REPORT_COUNT(1), 0x02,
                INPUT(1), 0x02,                     // Data, Variable, Absolute

                USAGE_PAGE(1), 0x01,                // Generic Desktop
                USAGE(1), 0x38,                     // scroll
                LOGICAL_MINIMUM(1), 0x81,           // -127
                LOGICAL_MAXIMUM(1), 0x7f,           // 127
                REPORT_SIZE(1), 0x08,
                REPORT_COUNT(1), 0x01,
                INPUT(1), 0x06,                     // Data, Variable, Relative

                USAGE_PAGE(1), 0x09,                // Buttons
                USAGE_MINIMUM(1), 0x01,
                USAGE_MAXIMUM(1), 0x03,
                LOGICAL_MINIMUM(1), 0x00,           // 0
                LOGICAL_MAXIMUM(1), 0x01,           // 1
                REPORT_COUNT(1), 0x03,
                REPORT_SIZE(1), 0x01,
                INPUT(1), 0x02,                     // Data, Variable, Absolute
                REPORT_COUNT(1), 0x01,
                REPORT_SIZE(1), 0x05,
                INPUT(1), 0x01,                     // Constant

                END_COLLECTION(0),
                END_COLLECTION(0),

                // Media Control
                USAGE_PAGE(1), 0x0C,
                USAGE(1), 0x01,
                COLLECTION(1), 0x01,
                REPORT_ID(1), REPORT_ID_VOLUME,
                USAGE_PAGE(1), 0x0C,
                LOGICAL_MINIMUM(1), 0x00,
                LOGICAL_MAXIMUM(1), 0x01,
                REPORT_SIZE(1), 0x01,
                REPORT_COUNT(1), 0x07,
                USAGE(1), 0xB5,             // Next Track
                USAGE(1), 0xB6,             // Previous Track
                USAGE(1), 0xB7,             // Stop
                USAGE(1), 0xCD,             // Play / Pause
                USAGE(1), 0xE2,             // Mute
                USAGE(1), 0xE9,             // Volume Up
                USAGE(1), 0xEA,             // Volume Down
                INPUT(1), 0x02,             // Input (Data, Variable, Absolute)
                REPORT_COUNT(1), 0x01,
                INPUT(1), 0x01,
                END_COLLECTION(0),
        };
        reportLength = sizeof(reportDescriptor);
        return reportDescriptor;
    }

    return NULL;
}

bool USBMouseKeyboard::EP1_OUT_callback() {
    uint16_t bytesRead = 0;
    uint8_t led[65];
    USBDevice::readEP(EPINT_OUT, led, &bytesRead, MAX_HID_REPORT_SIZE);
    
    // we take led[1] because led[0] is the report ID
    lock_status = led[1] & 0x07;
    
    // We activate the endpoint to be able to recceive data
    if (!readStart(EPINT_OUT, MAX_HID_REPORT_SIZE))
        return false;
    return true;
}

uint8_t USBMouseKeyboard::lockStatus() {
    return lock_status;
}

bool USBMouseKeyboard::update(int16_t x, int16_t y, uint8_t button, int8_t z) {
    switch (mouse_type) {
    case REL_MOUSE:
        while (x > 127) {
            if (!mouseSend(127, 0, button, z)) return false;
            x = x - 127;
        }
        while (x < -128) {
            if (!mouseSend(-128, 0, button, z)) return false;
            x = x + 128;
        }
        while (y > 127) {
            if (!mouseSend(0, 127, button, z)) return false;
            y = y - 127;
        }
        while (y < -128) {
            if (!mouseSend(0, -128, button, z)) return false;
            y = y + 128;
        }
        return mouseSend(x, y, button, z);
    case ABS_MOUSE:
        HID_REPORT report;

        report.data[0] = REPORT_ID_MOUSE;
        report.data[1] = x & 0xff;
        report.data[2] = (x >> 8) & 0xff;
        report.data[3] = y & 0xff;
        report.data[4] = (y >> 8) & 0xff;
        report.data[5] = -z;
        report.data[6] = button & 0x07;

        report.length = 7;

        return send(&report);
    default:
        return false;
    }
}

bool USBMouseKeyboard::mouseSend(int8_t x, int8_t y, uint8_t buttons, int8_t z) {
    HID_REPORT report;
    report.data[0] = REPORT_ID_MOUSE;
    report.data[1] = buttons & 0x07;
    report.data[2] = x;
    report.data[3] = y;
    report.data[4] = -z; // >0 to scroll down, <0 to scroll up

    report.length = 5;

    return send(&report);
}

bool USBMouseKeyboard::move(int16_t x, int16_t y) {
    return update(x, y, button, 0);
}

bool USBMouseKeyboard::scroll(int8_t z) {
    return update(0, 0, button, z);
}

bool USBMouseKeyboard::doubleClick() {
    if (!click(MOUSE_LEFT))
        return false;
    wait(0.1);
    return click(MOUSE_LEFT);
}

bool USBMouseKeyboard::click(uint8_t button) {
    if (!update(0, 0, button, 0))
        return false;
    wait(0.01);
    return update(0, 0, 0, 0);
}

bool USBMouseKeyboard::press(uint8_t button_) {
    button = button_ & 0x07;
    return update(0, 0, button, 0);
}

bool USBMouseKeyboard::release(uint8_t button_) {
    button = (button & (~button_)) & 0x07;
    return update(0, 0, button, 0);
}

int USBMouseKeyboard::_putc(int c) {
    return keyCode(c, keymap[c].modifier);
}

bool USBMouseKeyboard::keyCode(uint8_t key, uint8_t modifier) {
    // Send a simulated keyboard keypress. Returns true if successful.

    HID_REPORT report;

    report.data[0] = REPORT_ID_KEYBOARD;
    report.data[1] = modifier;
    report.data[2] = 0;
    report.data[3] = keymap[key].usage;
    report.data[4] = 0;
    report.data[5] = 0;
    report.data[6] = 0;
    report.data[7] = 0;
    report.data[8] = 0;

    report.length = 9;

    if (!send(&report)) {
        return false;
    }

    report.data[1] = 0;
    report.data[3] = 0;

    if (!send(&report)) {
        return false;
    }

    return true;

}


bool USBMouseKeyboard::mediaControl(MEDIA_KEY key) {
    HID_REPORT report;

    report.data[0] = REPORT_ID_VOLUME;
    report.data[1] = (1 << key) & 0x7f;

    report.length = 2;

    send(&report);
    
    report.data[0] = REPORT_ID_VOLUME;
    report.data[1] = 0;

    report.length = 2;

    return send(&report);
}