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- /**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2021 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/>.
- *
- */
- #pragma once
-
- #include "../inc/MarlinConfig.h"
-
- #if HAS_FANCHECK
-
- #include "../MarlinCore.h"
- #include "../lcd/marlinui.h"
-
- #if ENABLED(AUTO_REPORT_FANS)
- #include "../libs/autoreport.h"
- #endif
-
- #if ENABLED(PARK_HEAD_ON_PAUSE)
- #include "../gcode/queue.h"
- #endif
-
- /**
- * fancheck.h
- */
- #define TACHO_COUNT TERN(HAS_E7_FAN_TACHO, 8, TERN(HAS_E6_FAN_TACHO, 7, TERN(HAS_E5_FAN_TACHO, 6, TERN(HAS_E4_FAN_TACHO, 5, TERN(HAS_E3_FAN_TACHO, 4, TERN(HAS_E2_FAN_TACHO, 3, TERN(HAS_E1_FAN_TACHO, 2, 1)))))))
-
- class FanCheck {
- private:
-
- enum class TachoError : uint8_t { NONE, DETECTED, REPORTED, FIXED };
-
- #if HAS_PWMFANCHECK
- static bool measuring; // For future use (3 wires PWM controlled fans)
- #else
- static constexpr bool measuring = true;
- #endif
- static Flags<TACHO_COUNT> tacho_state;
- static uint16_t edge_counter[TACHO_COUNT];
- static uint8_t rps[TACHO_COUNT];
- static TachoError error;
-
- static void report_speed_error(uint8_t fan);
-
- public:
-
- static bool enabled;
-
- static void init();
- static void update_tachometers();
- static void compute_speed(uint16_t elapsedTime);
- static void print_fan_states();
- #if HAS_PWMFANCHECK
- static void toggle_measuring() { measuring = !measuring; }
- static bool is_measuring() { return measuring; }
- #endif
-
- static void check_deferred_error() {
- if (error == TachoError::DETECTED) {
- error = TachoError::REPORTED;
- TERN(PARK_HEAD_ON_PAUSE, queue.inject(F("M125")), kill(GET_TEXT_F(MSG_FAN_SPEED_FAULT)));
- }
- }
-
- #if ENABLED(AUTO_REPORT_FANS)
- struct AutoReportFan { static void report(); };
- static AutoReporter<AutoReportFan> auto_reporter;
- #endif
- };
-
- extern FanCheck fan_check;
-
- #endif // HAS_FANCHECK
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