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Refactor rotary encoder

This commit is contained in:
Theo Arends 2020-07-14 15:01:41 +02:00
parent 5e4554e927
commit cd6e23757c
1 changed files with 30 additions and 41 deletions
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71
tasmota/support_rotary.ino
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@ -43,15 +43,15 @@ const uint8_t rotary_ct_increment = 350 / ROTARY_MAX_STEPS; // Ct 153..500
const uint8_t rotary_color_increment = 360 / ROTARY_MAX_STEPS; // Hue 0..359 = 360
const uint8_t ROTARY_TIMEOUT = 10; // 10 * RotaryHandler() call which is usually 10 * 0.05 seconds
const uint8_t ROTARY_DEBOUNCE = 10; // Debounce time in milliseconds
struct ROTARY {
bool present = false;
} Rotary;
struct ENCODER {
struct tEncoder {
uint32_t debounce = 0;
int8_t abs_position1 = 0;
int8_t abs_position2 = 0;
int8_t abs_position[2] = { 0 };
int8_t direction = 0; // Control consistent direction
int8_t pin = -1;
uint8_t position = 128;
@ -59,32 +59,11 @@ struct ENCODER {
uint8_t timeout = 0; // Disallow direction change within 0.5 second
bool changed = false;
bool busy = false;
} Encoder[MAX_ROTARIES];
};
tEncoder Encoder[MAX_ROTARIES];
/********************************************************************************************/
void ICACHE_RAM_ATTR RotaryIsr(uint32_t index) {
if (Encoder[index].busy) { return; }
uint32_t time = micros();
if (Encoder[index].debounce < time) {
int direction = (digitalRead(Encoder[index].pin)) ? -1 : 1;
if ((0 == Encoder[index].direction) || (direction == Encoder[index].direction)) {
Encoder[index].position += direction;
Encoder[index].direction = direction;
}
Encoder[index].debounce = time +50; // Experimental debounce in microseconds
}
}
void ICACHE_RAM_ATTR RotaryIsr1(void) {
RotaryIsr(0);
}
void ICACHE_RAM_ATTR RotaryIsr2(void) {
RotaryIsr(1);
}
bool RotaryButtonPressed(uint32_t button_index) {
if (!Rotary.present) { return false; }
@ -107,6 +86,22 @@ bool RotaryButtonPressed(uint32_t button_index) {
return false;
}
void ICACHE_RAM_ATTR RotaryIsrArg(void *arg) {
tEncoder* encoder = static_cast<tEncoder*>(arg);
if (encoder->busy) { return; }
uint32_t time = millis();
if ((encoder->debounce < time) || (encoder->debounce > time + ROTARY_DEBOUNCE)) {
int direction = (digitalRead(encoder->pin)) ? -1 : 1;
if ((0 == encoder->direction) || (direction == encoder->direction)) {
encoder->position += direction;
encoder->direction = direction;
}
encoder->debounce = time + ROTARY_DEBOUNCE; // Experimental debounce
}
}
void RotaryInit(void) {
Rotary.present = false;
for (uint32_t index = 0; index < MAX_ROTARIES; index++) {
@ -119,11 +114,7 @@ void RotaryInit(void) {
Encoder[index].pin = Pin(GPIO_ROT1B, idx);
pinMode(Encoder[index].pin, INPUT_PULLUP);
pinMode(Pin(GPIO_ROT1A, idx), INPUT_PULLUP);
if (0 == index) {
attachInterrupt(Pin(GPIO_ROT1A, idx), RotaryIsr1, FALLING);
} else {
attachInterrupt(Pin(GPIO_ROT1A, idx), RotaryIsr2, FALLING);
}
attachInterruptArg(Pin(GPIO_ROT1A, idx), RotaryIsrArg, &Encoder[index], FALLING);
}
Rotary.present |= (Encoder[index].pin > -1);
}
@ -160,7 +151,7 @@ void RotaryHandler(void) {
int rotary_position = Encoder[index].position - Encoder[index].last_position;
if (Settings.save_data && (save_data_counter < 2)) {
save_data_counter = 2; // Postpone flash writes while rotary is turned
save_data_counter = 3; // Postpone flash writes while rotary is turned
}
bool button_pressed = (Button.hold_timer[index]); // Button is pressed: set color temperature
@ -191,16 +182,14 @@ void RotaryHandler(void) {
}
} else {
#endif // USE_LIGHT
if (button_pressed) {
Encoder[index].abs_position2 += rotary_position;
if (Encoder[index].abs_position2 < 0) { Encoder[index].abs_position2 = 0; }
if (Encoder[index].abs_position2 > ROTARY_MAX_STEPS) { Encoder[index].abs_position2 = ROTARY_MAX_STEPS; }
} else {
Encoder[index].abs_position1 += rotary_position;
if (Encoder[index].abs_position1 < 0) { Encoder[index].abs_position1 = 0; }
if (Encoder[index].abs_position1 > ROTARY_MAX_STEPS) { Encoder[index].abs_position1 = ROTARY_MAX_STEPS; }
Encoder[index].abs_position[button_pressed] += rotary_position;
if (Encoder[index].abs_position[button_pressed] < 0) {
Encoder[index].abs_position[button_pressed] = 0;
}
Response_P(PSTR("{\"Rotary%d\":{\"Pos1\":%d,\"Pos2\":%d}}"), index +1, Encoder[index].abs_position1, Encoder[index].abs_position2);
if (Encoder[index].abs_position[button_pressed] > ROTARY_MAX_STEPS) {
Encoder[index].abs_position[button_pressed] = ROTARY_MAX_STEPS;
}
Response_P(PSTR("{\"Rotary%d\":{\"Pos1\":%d,\"Pos2\":%d}}"), index +1, Encoder[index].abs_position[0], Encoder[index].abs_position[1]);
XdrvRulesProcess();
#ifdef USE_LIGHT
}