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- /**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2019 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 "../../MarlinCore.h" // for pin_is_protected
- #include "../../inc/MarlinConfig.h"
-
- #if FAN_COUNT > 0
- #include "../../module/temperature.h"
- #endif
-
- /**
- * 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
- */
- void GcodeSuite::M42() {
- if (!parser.seenval('S')) return;
- const byte pin_status = parser.value_byte();
-
- 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 FAN_COUNT > 0
- 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
-
- if (!parser.boolval('I') && pin_is_protected(pin)) return protected_pin_err();
-
- pinMode(pin, OUTPUT);
- extDigitalWrite(pin, pin_status);
- analogWrite(pin, pin_status);
- }
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