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Tasmota/tasmota/support_button.ino

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/*
support_button.ino - button support for Tasmota
Copyright (C) 2021 Federico Leoni and Theo Arends
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 <http://www.gnu.org/licenses/>.
*/
#define BUTTON_V2
#ifdef BUTTON_V2
/*********************************************************************************************\
* Button support
\*********************************************************************************************/
#define MAX_RELAY_BUTTON1 5 // Max number of relay controlled by BUTTON1
#ifdef ESP32
#define TOUCH_PIN_THRESHOLD 12 // Smaller value will treated as button press
#define TOUCH_HIT_THRESHOLD 3 // successful hits to filter out noise
#endif // ESP32
const char kMultiPress[] PROGMEM =
"|SINGLE|DOUBLE|TRIPLE|QUAD|PENTA|";
struct BUTTON {
uint32_t debounce = 0; // Button debounce timer
uint16_t hold_timer[MAX_KEYS] = { 0 }; // Timer for button hold
uint16_t dual_code = 0; // Sonoff dual received code
uint8_t last_state[MAX_KEYS] = { NOT_PRESSED, NOT_PRESSED, NOT_PRESSED, NOT_PRESSED }; // Last button states
uint8_t window_timer[MAX_KEYS] = { 0 }; // Max time between button presses to record press count
uint8_t press_counter[MAX_KEYS] = { 0 }; // Number of button presses within Button.window_timer
uint8_t dual_receive_count = 0; // Sonoff dual input flag
uint8_t no_pullup_mask = 0; // key no pullup flag (1 = no pullup)
uint8_t inverted_mask = 0; // Key inverted flag (1 = inverted)
#ifdef ESP32
uint8_t touch_mask = 0; // Touch flag (1 = inverted)
uint8_t touch_hits[MAX_KEYS] = { 0 }; // Hits in a row to filter out noise
#endif // ESP32
uint8_t present = 0; // Number of buttons found flag
} Button;
#ifdef ESP32
struct TOUCH_BUTTON {
uint8_t pin_threshold = TOUCH_PIN_THRESHOLD;
uint8_t hit_threshold = TOUCH_HIT_THRESHOLD;
uint8_t calibration = 0; // Bitfield
} TOUCH_BUTTON;
#endif // ESP32
/********************************************************************************************/
void ButtonPullupFlag(uint32_t button_bit) {
bitSet(Button.no_pullup_mask, button_bit);
}
void ButtonInvertFlag(uint32_t button_bit) {
bitSet(Button.inverted_mask, button_bit);
}
#ifdef ESP32
void ButtonTouchFlag(uint32_t button_bit) {
bitSet(Button.touch_mask, button_bit);
}
#endif // ESP32
void ButtonInit(void) {
Button.present = 0;
#ifdef ESP8266
if ((SONOFF_DUAL == TasmotaGlobal.module_type) || (CH4 == TasmotaGlobal.module_type)) {
Button.present++;
}
#endif // ESP8266
for (uint32_t i = 0; i < MAX_KEYS; i++) {
if (PinUsed(GPIO_KEY1, i)) {
Button.present++;
#ifdef ESP8266
pinMode(Pin(GPIO_KEY1, i), bitRead(Button.no_pullup_mask, i) ? INPUT : ((16 == Pin(GPIO_KEY1, i)) ? INPUT_PULLDOWN_16 : INPUT_PULLUP));
#endif // ESP8266
#ifdef ESP32
pinMode(Pin(GPIO_KEY1, i), bitRead(Button.no_pullup_mask, i) ? INPUT : INPUT_PULLUP);
#endif // ESP32
}
#ifdef USE_ADC
else if (PinUsed(GPIO_ADC_BUTTON, i) || PinUsed(GPIO_ADC_BUTTON_INV, i)) {
Button.present++;
}
#endif // USE_ADC
}
}
uint8_t ButtonSerial(uint8_t serial_in_byte) {
if (Button.dual_receive_count) {
Button.dual_receive_count--;
if (Button.dual_receive_count) {
Button.dual_code = (Button.dual_code << 8) | serial_in_byte;
serial_in_byte = 0;
} else {
if (serial_in_byte != 0xA1) {
Button.dual_code = 0; // 0xA1 - End of Sonoff dual button code
}
}
}
if (0xA0 == serial_in_byte) { // 0xA0 - Start of Sonoff dual button code
serial_in_byte = 0;
Button.dual_code = 0;
Button.dual_receive_count = 3;
}
return serial_in_byte;
}
/*********************************************************************************************\
* Button handler with single press only or multi-press and hold on all buttons
*
* ButtonDebounce (50) - Debounce time in mSec
* SetOption1 (0) - If set do not execute commands WifiConfig and Reset
* SetOption11 (0) - If set perform single press action on double press and reverse (on two relay devices only)
* SetOption13 (0) - If set act on single press only
* SetOption73 (0) - Decouple button from relay and send just mqtt topic
\*********************************************************************************************/
void ButtonHandler(void) {
if (TasmotaGlobal.uptime < 4) { return; } // Block GPIO for 4 seconds after poweron to workaround Wemos D1 / Obi RTS circuit
uint8_t hold_time_extent = IMMINENT_RESET_FACTOR; // Extent hold time factor in case of iminnent Reset command
uint16_t loops_per_second = 1000 / Settings.button_debounce; // ButtonDebounce (50)
char scmnd[20];
for (uint32_t button_index = 0; button_index < MAX_KEYS; button_index++) {
uint8_t button = NOT_PRESSED;
uint8_t button_present = 0;
#ifdef ESP8266
if (!button_index && ((SONOFF_DUAL == TasmotaGlobal.module_type) || (CH4 == TasmotaGlobal.module_type))) {
button_present = 1;
if (Button.dual_code) {
AddLog_P(LOG_LEVEL_DEBUG, PSTR(D_LOG_APPLICATION D_BUTTON " " D_CODE " %04X"), Button.dual_code);
button = PRESSED;
if (0xF500 == Button.dual_code) { // Button hold
Button.hold_timer[button_index] = (loops_per_second * Settings.param[P_HOLD_TIME] / 10) -1; // SetOption32 (40)
hold_time_extent = 1;
}
Button.dual_code = 0;
}
} else
#endif // ESP8266
if (PinUsed(GPIO_KEY1, button_index)) {
button_present = 1;
#ifdef ESP32
if (bitRead(Button.touch_mask, button_index)) { // Touch
uint32_t _value = touchRead(Pin(GPIO_KEY1, button_index));
button = NOT_PRESSED;
if (_value != 0) { // Probably read-error
if (_value < TOUCH_BUTTON.pin_threshold) {
if (++Button.touch_hits[button_index] > TOUCH_BUTTON.hit_threshold) {
if (!bitRead(TOUCH_BUTTON.calibration, button_index+1)) {
button = PRESSED;
}
}
} else {
Button.touch_hits[button_index] = 0;
}
} else {
Button.touch_hits[button_index] = 0;
}
if (bitRead(TOUCH_BUTTON.calibration, button_index+1)) {
AddLog_P(LOG_LEVEL_INFO, PSTR("PLOT: %u, %u, %u,"), button_index+1, _value, Button.touch_hits[button_index]); // Button number (1..4), value, continuous hits under threshold
}
} else
#endif // ESP32
{ // Normal button
button = (digitalRead(Pin(GPIO_KEY1, button_index)) != bitRead(Button.inverted_mask, button_index));
}
}
#ifdef USE_ADC
else if (PinUsed(GPIO_ADC_BUTTON, button_index)) {
button_present = 1;
button = AdcGetButton(Pin(GPIO_ADC_BUTTON, button_index));
}
else if (PinUsed(GPIO_ADC_BUTTON_INV, button_index)) {
button_present = 1;
button = AdcGetButton(Pin(GPIO_ADC_BUTTON_INV, button_index));
}
#endif // USE_ADC
if (button_present) {
XdrvMailbox.index = button_index;
XdrvMailbox.payload = button;
if (XdrvCall(FUNC_BUTTON_PRESSED)) {
// Serviced
}
#ifdef ESP8266
else if (SONOFF_4CHPRO == TasmotaGlobal.module_type) {
if (Button.hold_timer[button_index]) { Button.hold_timer[button_index]--; }
bool button_pressed = false;
if ((PRESSED == button) && (NOT_PRESSED == Button.last_state[button_index])) {
AddLog_P(LOG_LEVEL_DEBUG, PSTR(D_LOG_APPLICATION D_BUTTON "%d " D_LEVEL_10), button_index +1);
Button.hold_timer[button_index] = loops_per_second;
button_pressed = true;
}
if ((NOT_PRESSED == button) && (PRESSED == Button.last_state[button_index])) {
AddLog_P(LOG_LEVEL_DEBUG, PSTR(D_LOG_APPLICATION D_BUTTON "%d " D_LEVEL_01), button_index +1);
if (!Button.hold_timer[button_index]) { button_pressed = true; } // Do not allow within 1 second
}
if (button_pressed) {
if (!Settings.flag3.mqtt_buttons) { // SetOption73 (0) - Decouple button from relay and send just mqtt topic
if (!SendKey(KEY_BUTTON, button_index +1, POWER_TOGGLE)) { // Execute Toggle command via MQTT if ButtonTopic is set
ExecuteCommandPower(button_index +1, POWER_TOGGLE, SRC_BUTTON); // Execute Toggle command internally
}
} else {
MqttButtonTopic(button_index +1, 1, 0); // SetOption73 (0) - Decouple button from relay and send just mqtt topic
}
}
}
#endif // ESP8266
else {
if ((PRESSED == button) && (NOT_PRESSED == Button.last_state[button_index])) {
if (Settings.flag.button_single) { // SetOption13 (0) - Allow only single button press for immediate action,
if (!Settings.flag3.mqtt_buttons) { // SetOption73 (0) - Decouple button from relay and send just mqtt topic
AddLog_P(LOG_LEVEL_DEBUG, PSTR(D_LOG_APPLICATION D_BUTTON "%d " D_IMMEDIATE), button_index +1);
if (!SendKey(KEY_BUTTON, button_index +1, POWER_TOGGLE)) { // Execute Toggle command via MQTT if ButtonTopic is set
ExecuteCommandPower(button_index +1, POWER_TOGGLE, SRC_BUTTON); // Execute Toggle command internally
}
} else {
MqttButtonTopic(button_index +1, 1, 0); // SetOption73 1 - Decouple button from relay and send just mqtt topic
}
} else {
Button.press_counter[button_index] = (Button.window_timer[button_index]) ? Button.press_counter[button_index] +1 : 1;
AddLog_P(LOG_LEVEL_DEBUG, PSTR(D_LOG_APPLICATION D_BUTTON "%d " D_MULTI_PRESS " %d"), button_index +1, Button.press_counter[button_index]);
Button.window_timer[button_index] = loops_per_second / 2; // 0.5 second multi press window
}
TasmotaGlobal.blinks = 201;
}
if (NOT_PRESSED == button) {
Button.hold_timer[button_index] = 0;
} else {
Button.hold_timer[button_index]++;
if (Settings.flag.button_single) { // SetOption13 (0) - Allow only single button press for immediate action
if (Button.hold_timer[button_index] == loops_per_second * hold_time_extent * Settings.param[P_HOLD_TIME] / 10) { // SetOption32 (40) - Button held for factor times longer
snprintf_P(scmnd, sizeof(scmnd), PSTR(D_CMND_SETOPTION "13 0")); // Disable single press only
ExecuteCommand(scmnd, SRC_BUTTON);
}
} else {
if (Button.hold_timer[button_index] == loops_per_second * Settings.param[P_HOLD_TIME] / 10) { // SetOption32 (40) - Button hold
Button.press_counter[button_index] = 0;
if (Settings.flag3.mqtt_buttons) { // SetOption73 (0) - Decouple button from relay and send just mqtt topic
MqttButtonTopic(button_index +1, 3, 1);
} else {
SendKey(KEY_BUTTON, button_index +1, POWER_HOLD); // Execute Hold command via MQTT if ButtonTopic is set
}
} else {
if (Settings.flag.button_restrict) { // SetOption1 (0) - Control button multipress
if (Settings.param[P_HOLD_IGNORE] > 0) { // SetOption40 (0) - Do not ignore button hold
if (Button.hold_timer[button_index] > loops_per_second * Settings.param[P_HOLD_IGNORE] / 10) {
Button.hold_timer[button_index] = 0; // Reset button hold counter to stay below hold trigger
Button.press_counter[button_index] = 0; // Discard button press to disable functionality
}
}
} else {
if ((Button.hold_timer[button_index] == loops_per_second * hold_time_extent * Settings.param[P_HOLD_TIME] / 10)) { // SetOption32 (40) - Button held for factor times longer
Button.press_counter[button_index] = 0;
snprintf_P(scmnd, sizeof(scmnd), PSTR(D_CMND_RESET " 1"));
ExecuteCommand(scmnd, SRC_BUTTON);
}
}
}
}
}
if (!Settings.flag.button_single) { // SetOption13 (0) - Allow multi-press
if (Button.window_timer[button_index]) {
Button.window_timer[button_index]--;
} else {
if (!TasmotaGlobal.restart_flag && !Button.hold_timer[button_index] && (Button.press_counter[button_index] > 0) && (Button.press_counter[button_index] < 7)) {
bool single_press = false;
if (Button.press_counter[button_index] < 3) { // Single or Double press
#ifdef ESP8266
if ((SONOFF_DUAL_R2 == TasmotaGlobal.module_type) || (SONOFF_DUAL == TasmotaGlobal.module_type) || (CH4 == TasmotaGlobal.module_type)) {
single_press = true;
} else
#endif // ESP8266
{
single_press = (Settings.flag.button_swap +1 == Button.press_counter[button_index]); // SetOption11 (0)
if ((1 == Button.present) && (2 == TasmotaGlobal.devices_present)) { // Single Button with two devices only
if (Settings.flag.button_swap) { // SetOption11 (0)
Button.press_counter[button_index] = (single_press) ? 1 : 2;
}
}
}
}
#ifdef ROTARY_V1
if (!RotaryButtonPressed(button_index)) {
#endif
if (!Settings.flag3.mqtt_buttons && single_press && SendKey(KEY_BUTTON, button_index + Button.press_counter[button_index], POWER_TOGGLE)) { // Execute Toggle command via MQTT if ButtonTopic is set
// Success
} else {
if (Button.press_counter[button_index] < 6) { // Single to Penta press
if (WifiState() > WIFI_RESTART) { // Wifimanager active
TasmotaGlobal.restart_flag = 1;
}
if (!Settings.flag3.mqtt_buttons) { // SetOption73 - Detach buttons from relays and enable MQTT action state for multipress
if (Button.press_counter[button_index] == 1) { // By default first press always send a TOGGLE (2)
ExecuteCommandPower(button_index + Button.press_counter[button_index], POWER_TOGGLE, SRC_BUTTON);
} else {
SendKey(KEY_BUTTON, button_index +1, Button.press_counter[button_index] +9); // 2,3,4 and 5 press send just the key value (11,12,13 and 14) for rules
if (0 == button_index) { // BUTTON1 can toggle up to 5 relays if present. If a relay is not present will send out the key value (2,11,12,13 and 14) for rules
bool valid_relay = PinUsed(GPIO_REL1, Button.press_counter[button_index]-1);
#ifdef ESP8266
if ((SONOFF_DUAL == TasmotaGlobal.module_type) || (CH4 == TasmotaGlobal.module_type)) {
valid_relay = (Button.press_counter[button_index] <= TasmotaGlobal.devices_present);
}
#endif // ESP8266
if ((Button.press_counter[button_index] > 1) && valid_relay && (Button.press_counter[button_index] <= MAX_RELAY_BUTTON1)) {
ExecuteCommandPower(button_index + Button.press_counter[button_index], POWER_TOGGLE, SRC_BUTTON); // Execute Toggle command internally
// AddLog_P(LOG_LEVEL_DEBUG, PSTR("DBG: Relay%d found on GPIO%d"), Button.press_counter[button_index], Pin(GPIO_REL1, Button.press_counter[button_index]-1));
}
}
}
}
} else { // 6 press start wificonfig 2
if (!Settings.flag.button_restrict) { // SetOption1 - Control button multipress
snprintf_P(scmnd, sizeof(scmnd), PSTR(D_CMND_WIFICONFIG " 2"));
ExecuteCommand(scmnd, SRC_BUTTON);
}
}
if (Settings.flag3.mqtt_buttons) { // SetOption73 (0) - Decouple button from relay and send just mqtt topic
if (Button.press_counter[button_index] >= 1 && Button.press_counter[button_index] <= 5) {
MqttButtonTopic(button_index +1, Button.press_counter[button_index], 0);
}
}
}
#ifdef ROTARY_V1
}
#endif
Button.press_counter[button_index] = 0;
}
}
}
}
}
Button.last_state[button_index] = button;
}
}
/*
void MqttButtonTopic(uint8_t button_id, uint8_t action, uint8_t hold) {
char scommand[CMDSZ];
char stopic[TOPSZ];
char mqttstate[7];
SendKey(KEY_BUTTON, button_id, (hold) ? 3 : action +9);
if (!Settings.flag.hass_discovery) {
GetTextIndexed(mqttstate, sizeof(mqttstate), action, kMultiPress);
snprintf_P(scommand, sizeof(scommand), PSTR("BUTTON%d"), button_id);
GetTopic_P(stopic, STAT, TasmotaGlobal.mqtt_topic, scommand);
Response_P(S_JSON_COMMAND_SVALUE, "ACTION", (hold) ? SettingsText(SET_STATE_TXT4) : mqttstate);
MqttPublish(stopic);
}
}
*/
void MqttButtonTopic(uint32_t button_id, uint32_t action, uint32_t hold) {
SendKey(KEY_BUTTON, button_id, (hold) ? 3 : action +9);
if (!Settings.flag.hass_discovery) { // SetOption19 - Control Home Assistant automatic discovery (See SetOption59)
char scommand[10];
snprintf_P(scommand, sizeof(scommand), PSTR(D_JSON_BUTTON "%d"), button_id);
char mqttstate[7];
Response_P(S_JSON_SVALUE_ACTION_SVALUE, scommand, (hold) ? SettingsText(SET_STATE_TXT4) : GetTextIndexed(mqttstate, sizeof(mqttstate), action, kMultiPress));
MqttPublishPrefixTopicRulesProcess_P(RESULT_OR_STAT, scommand);
}
}
void ButtonLoop(void) {
if (Button.present) {
if (TimeReached(Button.debounce)) {
SetNextTimeInterval(Button.debounce, Settings.button_debounce); // ButtonDebounce (50)
ButtonHandler();
}
}
}
#endif // BUTTON_V2
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