Marlin_Firmware/Marlin/src/gcode/feature/caselight/M355.h

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/**
* 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/>.
*
*/
#if HAS_CASE_LIGHT
#ifndef INVERT_CASE_LIGHT
#define INVERT_CASE_LIGHT false
#endif
int case_light_brightness; // LCD routine wants INT
bool case_light_on;
void update_case_light() {
pinMode(CASE_LIGHT_PIN, OUTPUT); // digitalWrite doesn't set the port mode
uint8_t case_light_bright = (uint8_t)case_light_brightness;
if (case_light_on) {
if (USEABLE_HARDWARE_PWM(CASE_LIGHT_PIN)) {
analogWrite(CASE_LIGHT_PIN, INVERT_CASE_LIGHT ? 255 - case_light_brightness : case_light_brightness );
}
else WRITE(CASE_LIGHT_PIN, INVERT_CASE_LIGHT ? LOW : HIGH);
}
else WRITE(CASE_LIGHT_PIN, INVERT_CASE_LIGHT ? HIGH : LOW);
}
#endif // HAS_CASE_LIGHT
/**
* M355: Turn case light on/off and set brightness
*
* P<byte> Set case light brightness (PWM pin required - ignored otherwise)
*
* S<bool> Set case light on/off
*
* When S turns on the light on a PWM pin then the current brightness level is used/restored
*
* M355 P200 S0 turns off the light & sets the brightness level
* M355 S1 turns on the light with a brightness of 200 (assuming a PWM pin)
*/
void gcode_M355() {
#if HAS_CASE_LIGHT
uint8_t args = 0;
if (parser.seenval('P')) ++args, case_light_brightness = parser.value_byte();
if (parser.seenval('S')) ++args, case_light_on = parser.value_bool();
if (args) update_case_light();
// always report case light status
SERIAL_ECHO_START();
if (!case_light_on) {
SERIAL_ECHOLN("Case light: off");
}
else {
if (!USEABLE_HARDWARE_PWM(CASE_LIGHT_PIN)) SERIAL_ECHOLN("Case light: on");
else SERIAL_ECHOLNPAIR("Case light: ", case_light_brightness);
}
#else
SERIAL_ERROR_START();
SERIAL_ERRORLNPGM(MSG_ERR_M355_NONE);
#endif
}