aboutsummaryrefslogtreecommitdiff
path: root/Marlin/src/HAL/ESP32/Tone.cpp
diff options
context:
space:
mode:
authorGeorgiy Bondarenko <69736697+nehilo@users.noreply.github.com>2021-03-04 20:54:23 +0300
committerGeorgiy Bondarenko <69736697+nehilo@users.noreply.github.com>2021-03-04 20:54:23 +0300
commite8701195e66f2d27ffe17fb514eae8173795aaf7 (patch)
tree9f519c4abf6556b9ae7190a6210d87ead1dfadde /Marlin/src/HAL/ESP32/Tone.cpp
downloadkp3s-lgvl-e8701195e66f2d27ffe17fb514eae8173795aaf7.tar.xz
kp3s-lgvl-e8701195e66f2d27ffe17fb514eae8173795aaf7.zip
Initial commit
Diffstat (limited to 'Marlin/src/HAL/ESP32/Tone.cpp')
-rw-r--r--Marlin/src/HAL/ESP32/Tone.cpp59
1 files changed, 59 insertions, 0 deletions
diff --git a/Marlin/src/HAL/ESP32/Tone.cpp b/Marlin/src/HAL/ESP32/Tone.cpp
new file mode 100644
index 0000000..376c0f3
--- /dev/null
+++ b/Marlin/src/HAL/ESP32/Tone.cpp
@@ -0,0 +1,59 @@
+/**
+ * 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
+ *
+ * Copypaste of SAMD51 HAL developed by Giuliano Zaro (AKA GMagician)
+ *
+ * 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/>.
+ *
+ */
+
+/**
+ * Description: Tone function for ESP32
+ * Derived from https://forum.arduino.cc/index.php?topic=136500.msg2903012#msg2903012
+ */
+
+#ifdef ARDUINO_ARCH_ESP32
+
+#include "../../inc/MarlinConfig.h"
+#include "HAL.h"
+
+static pin_t tone_pin;
+volatile static int32_t toggles;
+
+void tone(const pin_t _pin, const unsigned int frequency, const unsigned long duration) {
+ tone_pin = _pin;
+ toggles = 2 * frequency * duration / 1000;
+ HAL_timer_start(TONE_TIMER_NUM, 2 * frequency);
+}
+
+void noTone(const pin_t _pin) {
+ HAL_timer_disable_interrupt(TONE_TIMER_NUM);
+ WRITE(_pin, LOW);
+}
+
+HAL_TONE_TIMER_ISR() {
+ HAL_timer_isr_prologue(TONE_TIMER_NUM);
+
+ if (toggles) {
+ toggles--;
+ TOGGLE(tone_pin);
+ }
+ else noTone(tone_pin); // turn off interrupt
+}
+
+#endif // ARDUINO_ARCH_ESP32