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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 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 <https://www.gnu.org/licenses/>.
*
*/
#include "../../inc/MarlinConfig.h"
#if ENABLED(DIRECT_PIN_CONTROL)
#include "../gcode.h"
#include "../../MarlinCore.h" // for pin_is_protected
#if HAS_FAN
#include "../../module/temperature.h"
#endif
void protected_pin_err() {
SERIAL_ERROR_MSG(STR_ERR_PROTECTED_PIN);
}
/**
* M42: Change pin status via GCode
*
* P<pin> Pin number (LED if omitted)
* For LPC1768 specify pin P1_02 as M42 P102,
* P1_20 as M42 P120, etc.
*
* S<byte> Pin status from 0 - 255
* I Flag to ignore Marlin's pin protection
*
* M<mode> Pin mode: 0=INPUT 1=OUTPUT 2=INPUT_PULLUP 3=INPUT_PULLDOWN
*/
void GcodeSuite::M42() {
const int pin_index = PARSED_PIN_INDEX('P', GET_PIN_MAP_INDEX(LED_PIN));
if (pin_index < 0) return;
const pin_t pin = GET_PIN_MAP_PIN(pin_index);
if (!parser.boolval('I') && pin_is_protected(pin)) return protected_pin_err();
if (parser.seenval('M')) {
switch (parser.value_byte()) {
case 0: pinMode(pin, INPUT); break;
case 1: pinMode(pin, OUTPUT); break;
case 2: pinMode(pin, INPUT_PULLUP); break;
#ifdef INPUT_PULLDOWN
case 3: pinMode(pin, INPUT_PULLDOWN); break;
#endif
default: SERIAL_ECHOLNPGM("Invalid Pin Mode"); return;
}
}
if (!parser.seenval('S')) return;
const byte pin_status = parser.value_byte();
#if HAS_FAN
switch (pin) {
#if HAS_FAN0
case FAN0_PIN: thermalManager.fan_speed[0] = pin_status; return;
#endif
#if HAS_FAN1
case FAN1_PIN: thermalManager.fan_speed[1] = pin_status; return;
#endif
#if HAS_FAN2
case FAN2_PIN: thermalManager.fan_speed[2] = pin_status; return;
#endif
#if HAS_FAN3
case FAN3_PIN: thermalManager.fan_speed[3] = pin_status; return;
#endif
#if HAS_FAN4
case FAN4_PIN: thermalManager.fan_speed[4] = pin_status; return;
#endif
#if HAS_FAN5
case FAN5_PIN: thermalManager.fan_speed[5] = pin_status; return;
#endif
#if HAS_FAN6
case FAN6_PIN: thermalManager.fan_speed[6] = pin_status; return;
#endif
#if HAS_FAN7
case FAN7_PIN: thermalManager.fan_speed[7] = pin_status; return;
#endif
}
#endif
pinMode(pin, OUTPUT);
extDigitalWrite(pin, pin_status);
analogWrite(pin, pin_status);
}
#endif // DIRECT_PIN_CONTROL
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