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[MOD] Cache tone value on ESP32 (#553)

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This commit is contained in:
jgromes 2022-08-09 20:20:19 +02:00
parent 4a637b44f1
commit ec94177c2a
1 changed files with 13 additions and 2 deletions
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15
src/Module.cpp
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@ -272,6 +272,11 @@ RADIOLIB_PIN_STATUS Module::digitalRead(RADIOLIB_PIN_TYPE pin) {
return(cb_digitalRead(pin));
}
#if defined(ESP32)
// we need to cache the previous tone value for emulation on ESP32
int32_t prev = -1;
#endif
void Module::tone(RADIOLIB_PIN_TYPE pin, uint16_t value, uint32_t duration) {
#if !defined(RADIOLIB_TONE_UNSUPPORTED)
if((pin == RADIOLIB_NC) || (cb_tone == nullptr)) {
@ -285,8 +290,13 @@ void Module::tone(RADIOLIB_PIN_TYPE pin, uint16_t value, uint32_t duration) {
#if defined(ESP32)
// ESP32 tone() emulation
(void)duration;
ledcAttachPin(pin, RADIOLIB_TONE_ESP32_CHANNEL);
ledcWriteTone(RADIOLIB_TONE_ESP32_CHANNEL, value);
if(prev == -1) {
ledcAttachPin(pin, RADIOLIB_TONE_ESP32_CHANNEL);
}
if(prev != value) {
ledcWriteTone(RADIOLIB_TONE_ESP32_CHANNEL, value);
}
prev = value;
#elif defined(RADIOLIB_MBED_TONE_OVERRIDE)
// better tone for mbed OS boards
(void)duration;
@ -320,6 +330,7 @@ void Module::noTone(RADIOLIB_PIN_TYPE pin) {
// ESP32 tone() emulation
ledcDetachPin(pin);
ledcWrite(RADIOLIB_TONE_ESP32_CHANNEL, 0);
prev = -1;
#elif defined(RADIOLIB_MBED_TONE_OVERRIDE)
// better tone for mbed OS boards
(void)pin;