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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(CASE_LIGHT_ENABLE)
-
- #include "caselight.h"
-
- CaseLight caselight;
-
- #if CASELIGHT_USES_BRIGHTNESS && !defined(CASE_LIGHT_DEFAULT_BRIGHTNESS)
- #define CASE_LIGHT_DEFAULT_BRIGHTNESS 0 // For use on PWM pin as non-PWM just sets a default
- #endif
-
- #if CASELIGHT_USES_BRIGHTNESS
- uint8_t CaseLight::brightness = CASE_LIGHT_DEFAULT_BRIGHTNESS;
- #endif
-
- bool CaseLight::on = CASE_LIGHT_DEFAULT_ON;
-
- #if CASE_LIGHT_IS_COLOR_LED
- constexpr uint8_t init_case_light[] = CASE_LIGHT_DEFAULT_COLOR;
- LEDColor CaseLight::color = { init_case_light[0], init_case_light[1], init_case_light[2] OPTARG(HAS_WHITE_LED, init_case_light[3]) };
- #endif
-
- void CaseLight::update(const bool sflag) {
- #if CASELIGHT_USES_BRIGHTNESS
- /**
- * The brightness_sav (and sflag) is needed because ARM chips ignore
- * a "WRITE(CASE_LIGHT_PIN,x)" command to the pins that are directly
- * controlled by the PWM module. In order to turn them off the brightness
- * level needs to be set to OFF. Since we can't use the PWM register to
- * save the last brightness level we need a variable to save it.
- */
- static uint8_t brightness_sav; // Save brightness info for restore on "M355 S1"
-
- if (on || !sflag)
- brightness_sav = brightness; // Save brightness except for M355 S0
- if (sflag && on)
- brightness = brightness_sav; // Restore last brightness for M355 S1
-
- const uint8_t i = on ? brightness : 0, n10ct = ENABLED(INVERT_CASE_LIGHT) ? 255 - i : i;
- UNUSED(n10ct);
- #endif
-
- #if CASE_LIGHT_IS_COLOR_LED
- #if ENABLED(CASE_LIGHT_USE_NEOPIXEL)
- if (on)
- // Use current color of (NeoPixel) leds and new brightness level
- leds.set_color(LEDColor(leds.color.r, leds.color.g, leds.color.b OPTARG(HAS_WHITE_LED, leds.color.w) OPTARG(NEOPIXEL_LED, n10ct)));
- else
- // Switch off leds
- leds.set_off();
- #else
- // Use CaseLight color (CASE_LIGHT_DEFAULT_COLOR) and new brightness level
- leds.set_color(LEDColor(color.r, color.g, color.b OPTARG(HAS_WHITE_LED, color.w) OPTARG(NEOPIXEL_LED, n10ct)));
- #endif
- #else // !CASE_LIGHT_IS_COLOR_LED
-
- #if CASELIGHT_USES_BRIGHTNESS
- if (pin_is_pwm())
- set_pwm_duty(pin_t(CASE_LIGHT_PIN), (
- #if CASE_LIGHT_MAX_PWM == 255
- n10ct
- #else
- map(n10ct, 0, 255, 0, CASE_LIGHT_MAX_PWM)
- #endif
- ));
- else
- #endif
- {
- const bool s = on ? TERN(INVERT_CASE_LIGHT, LOW, HIGH) : TERN(INVERT_CASE_LIGHT, HIGH, LOW);
- WRITE(CASE_LIGHT_PIN, s ? HIGH : LOW);
- }
-
- #endif // !CASE_LIGHT_IS_COLOR_LED
-
- #if ENABLED(CASE_LIGHT_USE_RGB_LED)
- if (leds.lights_on) leds.update(); else leds.set_off();
- #endif
- }
-
- #endif // CASE_LIGHT_ENABLE
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