mirror of https://github.com/arendst/Tasmota.git
224 lines
7.9 KiB
C++
224 lines
7.9 KiB
C++
/*
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support_switch.ino - switch support for Tasmota
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Copyright (C) 2019 Theo Arends
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define SWITCH_V2
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#ifdef SWITCH_V2
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/*********************************************************************************************\
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* Switch support with input filter
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*
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* Inspired by (https://github.com/OLIMEX/olimex-iot-firmware-esp8266/blob/master/olimex/user/user_switch2.c)
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\*********************************************************************************************/
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const uint8_t SWITCH_PROBE_INTERVAL = 10; // Time in milliseconds between switch input probe
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#include <Ticker.h>
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Ticker TickerSwitch;
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struct SWITCH {
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unsigned long debounce = 0; // Switch debounce timer
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uint16_t no_pullup_mask = 0; // Switch pull-up bitmask flags
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uint8_t state[MAX_SWITCHES] = { 0 };
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uint8_t last_state[MAX_SWITCHES]; // Last wall switch states
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uint8_t hold_timer[MAX_SWITCHES] = { 0 }; // Timer for wallswitch push button hold
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uint8_t virtual_state[MAX_SWITCHES]; // Virtual switch states
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uint8_t present = 0;
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} Switch;
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/********************************************************************************************/
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void SwitchPullupFlag(uint16 switch_bit)
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{
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bitSet(Switch.no_pullup_mask, switch_bit);
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}
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uint8_t SwitchLastState(uint8_t index)
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{
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return Switch.last_state[index];
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}
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void SwitchSetVirtual(uint8_t index, uint8_t state)
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{
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Switch.virtual_state[index] = state;
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}
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uint8_t SwitchGetVirtual(uint8_t index)
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{
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return Switch.virtual_state[index];
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}
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/*********************************************************************************************/
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void SwitchProbe(void)
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{
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if (uptime < 4) { return; } // Block GPIO for 4 seconds after poweron to workaround Wemos D1 / Obi RTS circuit
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uint8_t state_filter = Settings.switch_debounce / SWITCH_PROBE_INTERVAL; // 5, 10, 15
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uint8_t force_high = (Settings.switch_debounce % 50) &1; // 51, 101, 151 etc
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uint8_t force_low = (Settings.switch_debounce % 50) &2; // 52, 102, 152 etc
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for (uint32_t i = 0; i < MAX_SWITCHES; i++) {
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if (pin[GPIO_SWT1 +i] < 99) {
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// Olimex user_switch2.c code to fix 50Hz induced pulses
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if (1 == digitalRead(pin[GPIO_SWT1 +i])) {
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if (force_high) { // Enabled with SwitchDebounce x1
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if (1 == Switch.virtual_state[i]) {
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Switch.state[i] = state_filter; // With noisy input keep current state 1 unless constant 0
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}
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}
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if (Switch.state[i] < state_filter) {
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Switch.state[i]++;
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if (state_filter == Switch.state[i]) {
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Switch.virtual_state[i] = 1;
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}
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}
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} else {
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if (force_low) { // Enabled with SwitchDebounce x2
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if (0 == Switch.virtual_state[i]) {
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Switch.state[i] = 0; // With noisy input keep current state 0 unless constant 1
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}
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}
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if (Switch.state[i] > 0) {
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Switch.state[i]--;
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if (0 == Switch.state[i]) {
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Switch.virtual_state[i] = 0;
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}
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}
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}
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}
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}
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TickerSwitch.attach_ms(SWITCH_PROBE_INTERVAL, SwitchProbe); // Re-arm as core 2.3.0 does only support ONCE mode
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}
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void SwitchInit(void)
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{
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Switch.present = 0;
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for (uint32_t i = 0; i < MAX_SWITCHES; i++) {
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Switch.last_state[i] = 1; // Init global to virtual switch state;
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if (pin[GPIO_SWT1 +i] < 99) {
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Switch.present++;
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pinMode(pin[GPIO_SWT1 +i], bitRead(Switch.no_pullup_mask, i) ? INPUT : ((16 == pin[GPIO_SWT1 +i]) ? INPUT_PULLDOWN_16 : INPUT_PULLUP));
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Switch.last_state[i] = digitalRead(pin[GPIO_SWT1 +i]); // Set global now so doesn't change the saved power state on first switch check
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}
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Switch.virtual_state[i] = Switch.last_state[i];
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}
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if (Switch.present) { TickerSwitch.attach_ms(SWITCH_PROBE_INTERVAL, SwitchProbe); }
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}
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/*********************************************************************************************\
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* Switch handler
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\*********************************************************************************************/
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void SwitchHandler(uint8_t mode)
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{
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if (uptime < 4) { return; } // Block GPIO for 4 seconds after poweron to workaround Wemos D1 / Obi RTS circuit
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uint8_t button = NOT_PRESSED;
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uint8_t switchflag;
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uint16_t loops_per_second = 1000 / Settings.switch_debounce;
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for (uint32_t i = 0; i < MAX_SWITCHES; i++) {
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if ((pin[GPIO_SWT1 +i] < 99) || (mode)) {
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if (Switch.hold_timer[i]) {
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Switch.hold_timer[i]--;
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if (0 == Switch.hold_timer[i]) {
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SendKey(KEY_SWITCH, i +1, POWER_HOLD); // Execute command via MQTT
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}
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}
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button = Switch.virtual_state[i];
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// enum SwitchModeOptions {TOGGLE, FOLLOW, FOLLOW_INV, PUSHBUTTON, PUSHBUTTON_INV, PUSHBUTTONHOLD, PUSHBUTTONHOLD_INV, PUSHBUTTON_TOGGLE, MAX_SWITCH_OPTION};
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if (button != Switch.last_state[i]) {
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switchflag = POWER_TOGGLE +1;
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switch (Settings.switchmode[i]) {
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case TOGGLE:
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switchflag = POWER_TOGGLE; // Toggle
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break;
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case FOLLOW:
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switchflag = button &1; // Follow wall switch state
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break;
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case FOLLOW_INV:
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switchflag = ~button &1; // Follow inverted wall switch state
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break;
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case PUSHBUTTON:
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if ((PRESSED == button) && (NOT_PRESSED == Switch.last_state[i])) {
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switchflag = POWER_TOGGLE; // Toggle with pushbutton to Gnd
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}
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break;
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case PUSHBUTTON_INV:
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if ((NOT_PRESSED == button) && (PRESSED == Switch.last_state[i])) {
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switchflag = POWER_TOGGLE; // Toggle with releasing pushbutton from Gnd
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}
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break;
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case PUSHBUTTON_TOGGLE:
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if (button != Switch.last_state[i]) {
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switchflag = POWER_TOGGLE; // Toggle with any pushbutton change
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}
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break;
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case PUSHBUTTONHOLD:
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if ((PRESSED == button) && (NOT_PRESSED == Switch.last_state[i])) {
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Switch.hold_timer[i] = loops_per_second * Settings.param[P_HOLD_TIME] / 10;
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}
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if ((NOT_PRESSED == button) && (PRESSED == Switch.last_state[i]) && (Switch.hold_timer[i])) {
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Switch.hold_timer[i] = 0;
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switchflag = POWER_TOGGLE; // Toggle with pushbutton to Gnd
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}
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break;
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case PUSHBUTTONHOLD_INV:
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if ((NOT_PRESSED == button) && (PRESSED == Switch.last_state[i])) {
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Switch.hold_timer[i] = loops_per_second * Settings.param[P_HOLD_TIME] / 10;
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}
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if ((PRESSED == button) && (NOT_PRESSED == Switch.last_state[i]) && (Switch.hold_timer[i])) {
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Switch.hold_timer[i] = 0;
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switchflag = POWER_TOGGLE; // Toggle with pushbutton to Gnd
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}
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break;
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}
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if (switchflag <= POWER_TOGGLE) {
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if (!SendKey(KEY_SWITCH, i +1, switchflag)) { // Execute command via MQTT
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ExecuteCommandPower(i +1, switchflag, SRC_SWITCH); // Execute command internally (if i < devices_present)
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}
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}
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Switch.last_state[i] = button;
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}
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}
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}
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}
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void SwitchLoop(void)
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{
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if (Switch.present) {
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if (TimeReached(Switch.debounce)) {
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SetNextTimeInterval(Switch.debounce, Settings.switch_debounce);
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SwitchHandler(0);
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}
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}
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}
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#endif // SWITCH_V2
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