Mbed OS Reference | USBMouseKeyboard.h Source File

 /*
  * Copyright (c) 2018-2019, Arm Limited and affiliates.
  * SPDX-License-Identifier: Apache-2.0
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 
 #ifndef USBMOUSEKEYBOARD_H
 #define USBMOUSEKEYBOARD_H
 
 #define REPORT_ID_KEYBOARD 1
 #define REPORT_ID_MOUSE 2
 #define REPORT_ID_VOLUME 3
 
 #include "USBMouse.h"
 #include "USBKeyboard.h"
 #include "Stream.h"
 #include "USBHID.h"
 #include "PlatformMutex.h"
 
 /**
  * USBMouseKeyboard example
  * @code
  *
  * #include "mbed.h"
  * #include "USBMouseKeyboard.h"
  *
  * USBMouseKeyboard key_mouse;
  *
  * int main(void)
  * {
  *   while(1)
  *   {
  *       key_mouse.move(20, 0);
  *       key_mouse.printf("Hello From MBED\r\n");
  *       wait(1);
  *   }
  * }
  * @endcode
  *
  *
  * @code
  *
  * #include "mbed.h"
  * #include "USBMouseKeyboard.h"
  *
  * USBMouseKeyboard key_mouse(ABS_MOUSE);
  *
  * int main(void)
  * {
  *   while(1)
  *   {
  *       key_mouse.move(X_MAX_ABS/2, Y_MAX_ABS/2);
  *       key_mouse.printf("Hello from MBED\r\n");
  *       wait(1);
  *   }
  * }
  * @endcode
  *
  * @note Synchronization level: Thread safe
  */
 class USBMouseKeyboard: public USBHID, public mbed::Stream {
 public:
 
     /**
     * Basic constructor
     *
     * Construct this object optionally connecting and blocking until it is ready.
     *
     * @note Do not use this constructor in derived classes.
     *
     * @param connect_blocking true to perform a blocking connect, false to start in a disconnected state
     * @param mouse_type Mouse type: ABS_MOUSE (absolute mouse) or REL_MOUSE (relative mouse) (default: REL_MOUSE)
     * @param vendor_id Your vendor_id (default: 0x1234)
     * @param product_id Your product_id (default: 0x0001)
     * @param product_release Your preoduct_release (default: 0x0001)
     *
     */
     USBMouseKeyboard(bool connect_blocking = true, MOUSE_TYPE mouse_type = REL_MOUSE, uint16_t vendor_id = 0x0021, uint16_t product_id = 0x0011, uint16_t product_release = 0x0001);
 
     /**
     * Fully featured constructor
     *
     * Construct this object with the supplied USBPhy and parameters. The user
     * this object is responsible for calling connect() or init().
     *
     * @note Derived classes must use this constructor and call init() or
     * connect() themselves. Derived classes should also call deinit() in
     * their destructor. This ensures that no interrupts can occur when the
     * object is partially constructed or destroyed.
     *
     * @param phy USB phy to use
     * @param mouse_type Mouse type: ABS_MOUSE (absolute mouse) or REL_MOUSE (relative mouse) (default: REL_MOUSE)
     * @param vendor_id Your vendor_id (default: 0x1234)
     * @param product_id Your product_id (default: 0x0001)
     * @param product_release Your preoduct_release (default: 0x0001)
     *
     */
     USBMouseKeyboard(USBPhy *phy, MOUSE_TYPE mouse_type = REL_MOUSE, uint16_t vendor_id = 0x0021, uint16_t product_id = 0x0011, uint16_t product_release = 0x0001);
 
     /**
      * Destroy this object
      *
      * Any classes which inherit from this class must call deinit
      * before this destructor runs.
      */
     virtual ~USBMouseKeyboard();
 
     /**
     * Write a state of the mouse
     *
     * @param x x-axis position
     * @param y y-axis position
     * @param buttons buttons state (first bit represents MOUSE_LEFT, second bit MOUSE_RIGHT and third bit MOUSE_MIDDLE)
     * @param z wheel state (>0 to scroll down, <0 to scroll up)
     * @returns true if there is no error, false otherwise
     */
     bool update(int16_t x, int16_t y, uint8_t buttons, int8_t z);
 
 
     /**
     * Move the cursor to (x, y)
     *
     * @param x x-axis position
     * @param y 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 button button state (ex: press(MOUSE_LEFT))
     * @returns true if there is no error, false otherwise
     */
     bool press(uint8_t button);
 
     /**
     * Release one or several buttons
     *
     * @param button button state (ex: release(MOUSE_LEFT))
     * @returns true if there is no error, false otherwise
     */
     bool release(uint8_t button);
 
     /**
     * Double click (MOUSE_LEFT)
     *
     * @returns true if there is no error, false otherwise
     */
     bool doubleClick();
 
     /**
     * Click
     *
     * @param button state of the buttons ( ex: clic(MOUSE_LEFT))
     * @returns true if there is no error, false otherwise
     */
     bool click(uint8_t button);
 
     /**
     * Scrolling
     *
     * @param z value of the wheel (>0 to go down, <0 to go up)
     * @returns true if there is no error, false otherwise
     */
     bool scroll(int8_t z);
 
     /**
     * To send a character defined by a modifier(CTRL, SHIFT, ALT) and the key
     *
     * @code
     * //To send CTRL + s (save)
     *  keyboard.keyCode('s', KEY_CTRL);
     * @endcode
     *
     * @param modifier bit 0: KEY_CTRL, bit 1: KEY_SHIFT, bit 2: KEY_ALT (default: 0)
     * @param key character to send
     * @returns true if there is no error, false otherwise
     */
     bool key_code(uint8_t key, uint8_t modifier = 0);
 
     /**
     * Send a character
     *
     * @param c character to be sent
     * @returns true if there is no error, false otherwise
     */
     virtual int _putc(int c);
 
     /**
     * Control media keys
     *
     * @param key media key pressed (KEY_NEXT_TRACK, KEY_PREVIOUS_TRACK, KEY_STOP, KEY_PLAY_PAUSE, KEY_MUTE, KEY_VOLUME_UP, KEY_VOLUME_DOWN)
     * @returns true if there is no error, false otherwise
     */
     bool media_control(MEDIA_KEY key);
 
     /**
     * Read status of lock keys. Useful to switch-on/off leds according to key pressed. Only the first three bits of the result is important:
     *   - First bit: NUM_LOCK
     *   - Second bit: CAPS_LOCK
     *   - Third bit: SCROLL_LOCK
     *
     * @returns status of lock keys
     */
     uint8_t lock_status();
 
     /*
     * 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 const uint8_t *report_desc();
 
     /*
     * Called when a data is received on the OUT endpoint. Useful to switch on LED of LOCK keys
     *
     * @returns if handle by subclass, return true
     */
     virtual void report_rx();
 
 
 private:
     MOUSE_TYPE _mouse_type;
     uint8_t _button;
     uint8_t _lock_status;
     PlatformMutex _mutex;
 
     bool _mouse_send(int8_t x, int8_t y, uint8_t buttons, int8_t z);
 
     //dummy otherwise it doesn't compile (we must define all methods of an abstract class)
     virtual int _getc();
 };
 
 #endif
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