mirrors
/
Tasmota
mirror of https://github.com/arendst/Tasmota.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

I2C over Serial, preliminary stub (#22388) 

* I2C over Serial, preliminary stub

* Imporve initializer
This commit is contained in:
s-hadinger 2024-10-31 09:18:37 +01:00 committed by GitHub
parent b89909991c
commit 5892fef63d
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
31 changed files with 234 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
CHANGELOG.md
View File

@ -5,6 +5,7 @@ All notable changes to this project will be documented in this file.
## [14.3.0.3]
### Added
- I2C over Serial, preliminary stub
### Breaking Changed

6
tasmota/include/tasmota_template.h
View File

@ -226,6 +226,7 @@ enum UserSelectablePins {
GPIO_BL0906_RX, // BL0906 Serial interface
GPIO_DALI_RX_INV, GPIO_DALI_TX_INV, // DALI
GPIO_LD2410S_TX, GPIO_LD2410S_RX, // HLK-LD2410S
GPIO_I2C_SER_TX, GPIO_I2C_SER_RX, // I2C via Serial using SC18IM704 protocol (xdrv74)
GPIO_SENSOR_END };
// Error as warning to rethink GPIO usage with max 2045
@ -499,6 +500,7 @@ const char kSensorNames[] PROGMEM =
D_SENSOR_BL0906_RX "|"
D_SENSOR_DALI_RX "_i|" D_SENSOR_DALI_TX "_i|"
D_SENSOR_LD2410S_TX "|" D_SENSOR_LD2410S_RX "|"
D_SENSOR_I2C_SER_TX "|" D_SENSOR_I2C_SER_RX "|"
;
const char kSensorNamesFixed[] PROGMEM =
@ -602,6 +604,10 @@ const uint16_t kGpioNiceList[] PROGMEM = {
#ifdef USE_PCF8574
AGPIO(GPIO_PCF8574_INT), // PCF8574 Interrupt
#endif // USE_PCF8574
#ifdef USE_I2C_SERIAL
AGPIO(GPIO_I2C_SER_TX) + MAX_I2C, // I2C via Serial TX
AGPIO(GPIO_I2C_SER_RX) + MAX_I2C, // I2C via Serial RX
#endif // USE_I2C_SERIAL
#endif
#if defined(USE_I2S_AUDIO) || defined (USE_I2S)

2
tasmota/language/af_AF.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/bg_BG.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/ca_AD.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/cs_CZ.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/de_DE.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/el_GR.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/en_GB.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/es_ES.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/fr_FR.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCl"
#define D_SENSOR_I2C_SDA "I2C SDa"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MClk"
#define D_SENSOR_I2S_BCLK "I2S BClk"
#define D_SENSOR_I2S_WS_IN "I2S BClk In"

2
tasmota/language/fy_NL.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/he_HE.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/hu_HU.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/it_IT.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C - SCL"
#define D_SENSOR_I2C_SDA "I2C - SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S - MCLK"
#define D_SENSOR_I2S_BCLK "I2S - BCLK"
#define D_SENSOR_I2S_WS_IN "I2S - BCLK IN"

2
tasmota/language/ko_KO.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/nl_NL.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/pl_PL.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/pt_BR.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/pt_PT.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/ro_RO.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/ru_RU.h
View File

@ -699,6 +699,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/sk_SK.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/sv_SE.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/tr_TR.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/uk_UA.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/vi_VN.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/zh_CN.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

2
tasmota/language/zh_TW.h
View File

@ -698,6 +698,8 @@
#define D_SENSOR_DS18X20 "DS18x20"
#define D_SENSOR_I2C_SCL "I2C SCL"
#define D_SENSOR_I2C_SDA "I2C SDA"
#define D_SENSOR_I2C_SER_TX "I2C Ser TX"
#define D_SENSOR_I2C_SER_RX "I2C Ser RX"
#define D_SENSOR_I2S_MCLK "I2S MCLK"
#define D_SENSOR_I2S_BCLK "I2S BCLK"
#define D_SENSOR_I2S_WS_IN "I2S BCLK IN"

10
tasmota/tasmota_support/support_a_i2c.ino
View File

@ -78,19 +78,29 @@ bool I2cBegin(int sda, int scl, uint32_t bus, uint32_t frequency) {
return result;
}
TwoWire * I2CSerialGetWire(TwoWire * orig_wire, uint8_t bus);
TwoWire& I2cGetWire(uint8_t bus = 0) {
if ((0 == bus) && TasmotaGlobal.i2c_enabled[0]) {
#ifdef USE_I2C_BUS2_ESP8266
I2cSetBus(bus);
#endif
#ifdef USE_I2C_SERIAL
return I2CSerialGetWire(Wire, bus);
#else
return Wire;
#endif // USE_I2C_SERIAL
}
#ifdef USE_I2C_BUS2
else if ((1 == bus) && TasmotaGlobal.i2c_enabled[1]) {
#ifdef USE_I2C_BUS2_ESP8266
I2cSetBus(bus);
#endif
#ifdef USE_I2C_SERIAL
return I2CSerialGetWire(Wire1, bus);
#else
return Wire1;
#endif // USE_I2C_SERIAL
}
#endif // USE_I2C_BUS2
else {

163
tasmota/tasmota_xdrv_driver/xdrv_76_serial_i2c.ino Normal file
View File

@ -0,0 +1,163 @@
/*
xdrv_76_serial_i2c.ino - UART to I2C using SC18IM704 compatible protocol
Copyright (C) 2024 Stephan Hadinger
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/>.
*/
#ifdef USE_I2C_SERIAL
#define XDRV_76 76
class TwoWireSerial;
struct {
bool active = false;
uint8_t bus = 0;
uint8_t tx = 0;
uint8_t rx = 0;
TwoWireSerial *WireSerial = nullptr; // replacement object for TwoWire
} i2c_serial;
class TwoWireSerial : public TwoWire {
protected:
uint8_t tx;
uint8_t rx;
TasmotaSerial *serial; // serial instance to communicate with SC18IM704
private:
public:
TwoWireSerial(uint8_t bus_num) : tx(-1), rx(-1), serial(nullptr), TwoWire(bus_num) {
AddLog(LOG_LEVEL_DEBUG_MORE, "ISR: TwoWireSerial(%i)", bus_num);
};
// ~TwoWireSerial() {};
bool setPins(int _tx, int _rx) {
if (_tx >= 0 && _rx >= 0) {
tx = _tx;
rx = _rx;
return true;
}
return false;
}
// virtual bool begin()
// virtual bool begin(uint8_t address) override{ Serial.printf(">>>>>>> begin\n"); return true; };
// virtual bool end() = 0;
bool beginSerial() {
AddLog(LOG_LEVEL_DEBUG_MORE, "ISR: beginSerial");
if (tx >= 0 && rx >= 0) {
serial = new TasmotaSerial(tx, rx);
if (serial) {
serial->begin(115200);
return true;
}
}
return false;
}
virtual bool setClock(uint32_t freq) override {
AddLog(LOG_LEVEL_DEBUG_MORE, "ISR: setClock(%i) -- ignored", freq);
return true;
}
virtual void beginTransmission(uint8_t address) override {
AddLog(LOG_LEVEL_DEBUG_MORE, "ISR: beginTransmission(0x%02X)", address);
};
virtual uint8_t endTransmission(bool stopBit) override {
AddLog(LOG_LEVEL_DEBUG_MORE, "ISR: endTransmission(%i)", stopBit);
return 2;
}
virtual uint8_t endTransmission(void) override {
AddLog(LOG_LEVEL_DEBUG_MORE, "ISR: endTransmission()");
return 2;
}
// not used, but redefine to avoid any accidental call
virtual size_t requestFrom(uint8_t address, size_t len, bool stopBit) override { return 0; };
virtual size_t requestFrom(uint8_t address, size_t len) override { return 0; };
};
// return the original Wire object or the I2C Serial object
TwoWire & I2CSerialGetWire(TwoWire & orig_wire, uint8_t bus) {
if (i2c_serial.active && i2c_serial.bus == bus) {
AddLog(LOG_LEVEL_DEBUG, PSTR("I2C: Bus%d %p"), bus +1, i2c_serial.WireSerial);
return *i2c_serial.WireSerial;
} else {
return orig_wire;
}
}
// Initialize I2C Serial
// - check if I2C serial is configured on some GPIOs
// - configure serial bus
// - register serial bus with Tasmota
void I2CSerialInit(void) {
i2c_serial.active = false;
// check if I2C serial is configured on some GPIOs
for (uint32_t bus = 0; bus < MAX_I2C; bus++) {
if (PinUsed(GPIO_I2C_SER_TX, bus) && PinUsed(GPIO_I2C_SER_RX, bus)) {
if (i2c_serial.active) {
// Error: I2C Serial was already configured on bus 0, we don't accept a second one
AddLog(LOG_LEVEL_ERROR, "I2C: I2C serial can be configured only on 1 bus");
continue;
}
if (TasmotaGlobal.i2c_enabled[bus]) {
// Error: I2C was already configured with SDA/SCL on this bus
AddLog(LOG_LEVEL_ERROR, "I2C: I2C serial failed on bus %i because SDA/SCL already configured", bus + 1);
} else {
// all good
i2c_serial.bus = bus;
i2c_serial.tx = Pin(GPIO_I2C_SER_TX, bus);
i2c_serial.rx = Pin(GPIO_I2C_SER_RX, bus);
i2c_serial.active = true;
}
}
}
// configure serial bus
if (i2c_serial.active) {
i2c_serial.WireSerial = new TwoWireSerial(1); // TODO is it ok to use UART 1 ?
i2c_serial.WireSerial->setPins(i2c_serial.tx, i2c_serial.rx);
if (i2c_serial.WireSerial->beginSerial()) {
TasmotaGlobal.i2c_enabled[i2c_serial.bus] = true; // enable at Tasmota level
AddLog(LOG_LEVEL_INFO, "I2C: I2C serial configured on GPIO TX %i / RX %i for bus %i", i2c_serial.tx, i2c_serial.rx, i2c_serial.bus + 1);
} else {
delete i2c_serial.WireSerial;
i2c_serial.active = false;
}
}
AddLog(LOG_LEVEL_DEBUG_MORE, "I2C: I2C serial active %i, bus %i, tx %i / rx %i, wire %p", i2c_serial.active, i2c_serial.bus + 1, i2c_serial.tx, i2c_serial.rx, i2c_serial.WireSerial);
}
/*********************************************************************************************\
* Interface
\*********************************************************************************************/
bool Xdrv76(uint32_t function) {
bool result = false;
if (FUNC_PRE_INIT == function) {
I2CSerialInit();
} else if (i2c_serial.active) {
switch (function) {
case FUNC_ACTIVE:
result = true;
break;
}
}
return result;
}
#endif // USE_I2C_SERIAL