60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
/**
|
|
* Marlin 3D Printer Firmware
|
|
* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
|
|
*
|
|
* Based on Sprinter and grbl.
|
|
* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
#include "../gcode.h"
|
|
#include "../../Marlin.h" // for pin_is_protected and idle()
|
|
#include "../../module/stepper.h"
|
|
|
|
/**
|
|
* M226: Wait until the specified pin reaches the state required (M226 P<pin> S<state>)
|
|
*/
|
|
void GcodeSuite::M226() {
|
|
if (parser.seen('P')) {
|
|
const int pin_number = PARSED_PIN_INDEX('P', 0),
|
|
pin_state = parser.intval('S', -1); // required pin state - default is inverted
|
|
const pin_t pin = GET_PIN_MAP_PIN(pin_number);
|
|
|
|
if (WITHIN(pin_state, -1, 1) && pin > -1 && !pin_is_protected(pin)) {
|
|
|
|
int target = LOW;
|
|
|
|
planner.synchronize();
|
|
|
|
pinMode(pin, INPUT);
|
|
switch (pin_state) {
|
|
case 1:
|
|
target = HIGH;
|
|
break;
|
|
case 0:
|
|
target = LOW;
|
|
break;
|
|
case -1:
|
|
target = !digitalRead(pin);
|
|
break;
|
|
}
|
|
|
|
while (digitalRead(pin) != target) idle();
|
|
|
|
} // pin_state -1 0 1 && pin > -1
|
|
} // parser.seen('P')
|
|
}
|