/*
* Copyright (c) 2023 Jiri Svoboda
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup input
* @{
*/
/**
* @file
* @brief Stroke simulator.
*
* When simulating a keyboard using a serial TTY we need to convert the
* recognized strokes (such as Shift-A) to sequences of key presses and
* releases (such as 'press Shift, press A, release A, release Shift').
*
*/
#include <io/console.h>
#include <io/keycode.h>
#include "stroke.h"
#include "kbd.h"
/** Correspondence between modifers and the modifier keycodes. */
static unsigned int mods_keys[][2] = {
{ KM_LALT, KC_LALT },
{ KM_LSHIFT, KC_LSHIFT },
{ KM_LCTRL, KC_LCTRL },
{ 0, 0 }
};
/** Simulate keystroke using sequences of key presses and releases. */
void stroke_sim(kbd_dev_t *kdev, unsigned mod, unsigned key)
{
int i;
/* Simulate modifier presses. */
i = 0;
while (mods_keys[i][0] != 0) {
if (mod & mods_keys[i][0]) {
kbd_push_event(kdev, KEY_PRESS, mods_keys[i][1]);
}
++i;
}
/* Simulate key press and release. */
if (key != 0) {
kbd_push_event(kdev, KEY_PRESS, key);
kbd_push_event(kdev, KEY_RELEASE, key);
}
/* Simulate modifier releases. */
i = 0;
while (mods_keys[i][0] != 0) {
if (mod & mods_keys[i][0]) {
kbd_push_event(kdev, KEY_RELEASE, mods_keys[i][1]);
}
++i;
}
}
/**
* @}
*/