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Tasmota/sonoff/support_button.ino

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/*
support_button.ino - button support for Sonoff-Tasmota
Copyright (C) 2019 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_V1
#ifdef BUTTON_V1
/*********************************************************************************************\
* Button support
\*********************************************************************************************/
unsigned long button_debounce = 0; // Button debounce timer
uint16_t holdbutton[MAX_KEYS] = { 0 }; // Timer for button hold
uint16_t dual_button_code = 0; // Sonoff dual received code
uint8_t lastbutton[MAX_KEYS] = { NOT_PRESSED, NOT_PRESSED, NOT_PRESSED, NOT_PRESSED }; // Last button states
uint8_t multiwindow[MAX_KEYS] = { 0 }; // Max time between button presses to record press count
uint8_t multipress[MAX_KEYS] = { 0 }; // Number of button presses within multiwindow
uint8_t dual_hex_code = 0; // Sonoff dual input flag
uint8_t key_no_pullup = 0; // key no pullup flag (1 = no pullup)
uint8_t key_inverted = 0; // Key inverted flag (1 = inverted)
uint8_t buttons_found = 0; // Number of buttons found flag
/********************************************************************************************/
void ButtonPullupFlag(uint8 button_bit)
{
bitSet(key_no_pullup, button_bit);
}
void ButtonInvertFlag(uint8 button_bit)
{
bitSet(key_inverted, button_bit);
}
void ButtonInit(void)
{
buttons_found = 0;
for (uint8_t i = 0; i < MAX_KEYS; i++) {
if (pin[GPIO_KEY1 +i] < 99) {
buttons_found++;
pinMode(pin[GPIO_KEY1 +i], bitRead(key_no_pullup, i) ? INPUT : ((16 == pin[GPIO_KEY1 +i]) ? INPUT_PULLDOWN_16 : INPUT_PULLUP));
}
}
}
uint8_t ButtonSerial(uint8_t serial_in_byte)
{
if (dual_hex_code) {
dual_hex_code--;
if (dual_hex_code) {
dual_button_code = (dual_button_code << 8) | serial_in_byte;
serial_in_byte = 0;
} else {
if (serial_in_byte != 0xA1) {
dual_button_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;
dual_button_code = 0;
dual_hex_code = 3;
}
return serial_in_byte;
}
/*********************************************************************************************\
* Button handler with single press only or multi-press and hold on all buttons
\*********************************************************************************************/
void ButtonHandler(void)
{
if (uptime < 4) { return; } // Block GPIO for 4 seconds after poweron to workaround Wemos D1 / Obi RTS circuit
uint8_t button = NOT_PRESSED;
uint8_t button_present = 0;
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;
char scmnd[20];
uint8_t maxdev = (devices_present > MAX_KEYS) ? MAX_KEYS : devices_present;
for (uint8_t button_index = 0; button_index < maxdev; button_index++) {
button = NOT_PRESSED;
button_present = 0;
if (!button_index && ((SONOFF_DUAL == my_module_type) || (CH4 == my_module_type))) {
button_present = 1;
if (dual_button_code) {
snprintf_P(log_data, sizeof(log_data), PSTR(D_LOG_APPLICATION D_BUTTON " " D_CODE " %04X"), dual_button_code);
AddLog(LOG_LEVEL_DEBUG);
button = PRESSED;
if (0xF500 == dual_button_code) { // Button hold
holdbutton[button_index] = (loops_per_second * Settings.param[P_HOLD_TIME] / 10) -1;
hold_time_extent = 1;
}
dual_button_code = 0;
}
} else {
if (pin[GPIO_KEY1 +button_index] < 99) {
button_present = 1;
button = (digitalRead(pin[GPIO_KEY1 +button_index]) != bitRead(key_inverted, button_index));
}
}
if (button_present) {
XdrvMailbox.index = button_index;
XdrvMailbox.payload = button;
if (XdrvCall(FUNC_BUTTON_PRESSED)) {
// Serviced
}
else if (SONOFF_4CHPRO == my_module_type) {
if (holdbutton[button_index]) { holdbutton[button_index]--; }
bool button_pressed = false;
if ((PRESSED == button) && (NOT_PRESSED == lastbutton[button_index])) {
snprintf_P(log_data, sizeof(log_data), PSTR(D_LOG_APPLICATION D_BUTTON "%d " D_LEVEL_10), button_index +1);
AddLog(LOG_LEVEL_DEBUG);
holdbutton[button_index] = loops_per_second;
button_pressed = true;
}
if ((NOT_PRESSED == button) && (PRESSED == lastbutton[button_index])) {
snprintf_P(log_data, sizeof(log_data), PSTR(D_LOG_APPLICATION D_BUTTON "%d " D_LEVEL_01), button_index +1);
AddLog(LOG_LEVEL_DEBUG);
if (!holdbutton[button_index]) { button_pressed = true; } // Do not allow within 1 second
}
if (button_pressed) {
if (!SendKey(0, 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 {
if ((PRESSED == button) && (NOT_PRESSED == lastbutton[button_index])) {
if (Settings.flag.button_single) { // Allow only single button press for immediate action
snprintf_P(log_data, sizeof(log_data), PSTR(D_LOG_APPLICATION D_BUTTON "%d " D_IMMEDIATE), button_index +1);
AddLog(LOG_LEVEL_DEBUG);
if (!SendKey(0, 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 {
multipress[button_index] = (multiwindow[button_index]) ? multipress[button_index] +1 : 1;
snprintf_P(log_data, sizeof(log_data), PSTR(D_LOG_APPLICATION D_BUTTON "%d " D_MULTI_PRESS " %d"), button_index +1, multipress[button_index]);
AddLog(LOG_LEVEL_DEBUG);
multiwindow[button_index] = loops_per_second / 2; // 0.5 second multi press window
}
blinks = 201;
}
if (NOT_PRESSED == button) {
holdbutton[button_index] = 0;
} else {
holdbutton[button_index]++;
if (Settings.flag.button_single) { // Allow only single button press for immediate action
if (holdbutton[button_index] == loops_per_second * hold_time_extent * Settings.param[P_HOLD_TIME] / 10) { // Button held for factor times longer
// Settings.flag.button_single = 0;
snprintf_P(scmnd, sizeof(scmnd), PSTR(D_CMND_SETOPTION "13 0")); // Disable single press only
ExecuteCommand(scmnd, SRC_BUTTON);
}
} else {
if (Settings.flag.button_restrict) { // Button restriction
if (holdbutton[button_index] == loops_per_second * Settings.param[P_HOLD_TIME] / 10) { // Button hold
multipress[button_index] = 0;
SendKey(0, button_index +1, 3); // Execute Hold command via MQTT if ButtonTopic is set
}
} else {
if (holdbutton[button_index] == loops_per_second * hold_time_extent * Settings.param[P_HOLD_TIME] / 10) { // Button held for factor times longer
multipress[button_index] = 0;
snprintf_P(scmnd, sizeof(scmnd), PSTR(D_CMND_RESET " 1"));
ExecuteCommand(scmnd, SRC_BUTTON);
}
}
}
}
if (!Settings.flag.button_single) { // Allow multi-press
if (multiwindow[button_index]) {
multiwindow[button_index]--;
} else {
if (!restart_flag && !holdbutton[button_index] && (multipress[button_index] > 0) && (multipress[button_index] < MAX_BUTTON_COMMANDS +3)) {
bool single_press = false;
if (multipress[button_index] < 3) { // Single or Double press
if ((SONOFF_DUAL_R2 == my_module_type) || (SONOFF_DUAL == my_module_type) || (CH4 == my_module_type)) {
single_press = true;
} else {
single_press = (Settings.flag.button_swap +1 == multipress[button_index]);
multipress[button_index] = 1;
}
}
if ((MI_DESK_LAMP == my_module_type) && (button_index == 0) && (rotary_changed) && (light_power)) {
rotary_changed = 0; // Color temp changed, no need to turn of the light
} else {
if (single_press && SendKey(0, button_index + multipress[button_index], POWER_TOGGLE)) { // Execute Toggle command via MQTT if ButtonTopic is set
// Success
} else {
if (multipress[button_index] < 3) { // Single or Double press
if (WifiState() > WIFI_RESTART) { // WPSconfig, Smartconfig or Wifimanager active
restart_flag = 1;
} else {
ExecuteCommandPower(button_index + multipress[button_index], POWER_TOGGLE, SRC_BUTTON); // Execute Toggle command internally
}
} else { // 3 - 7 press
if (!Settings.flag.button_restrict) {
snprintf_P(scmnd, sizeof(scmnd), kCommands[multipress[button_index] -3]);
ExecuteCommand(scmnd, SRC_BUTTON);
}
}
}
}
multipress[button_index] = 0;
}
}
}
}
}
lastbutton[button_index] = button;
}
}
void ButtonLoop(void)
{
if (buttons_found) {
if (TimeReached(button_debounce)) {
SetNextTimeInterval(button_debounce, Settings.button_debounce);
ButtonHandler();
}
}
}
#endif // BUTTON_V1
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