Files
esphome-dev/esphome/components/tca9548a/tca9548a.cpp
T
Otto Winter ac0d921413 ESP-IDF support and generic target platforms (#2303)
* Socket refactor and SSL

* esp-idf temp

* Fixes

* Echo component and noise

* Add noise API transport support

* Updates

* ESP-IDF

* Complete

* Fixes

* Fixes

* Versions update

* New i2c APIs

* Complete i2c refactor

* SPI migration

* Revert ESP Preferences migration, too complex for now

* OTA support

* Remove echo again

* Remove ssl again

* GPIOFlags updates

* Rename esphal and ICACHE_RAM_ATTR

* Make ESP32 arduino compilable again

* Fix GPIO flags

* Complete pin registry refactor and fixes

* Fixes to make test1 compile

* Remove sdkconfig file

* Ignore sdkconfig file

* Fixes in reviewing

* Make test2 compile

* Make test4 compile

* Make test5 compile

* Run clang-format

* Fix lint errors

* Use esp-idf APIs instead of btStart

* Another round of fixes

* Start implementing ESP8266

* Make test3 compile

* Guard esp8266 code

* Lint

* Reformat

* Fixes

* Fixes v2

* more fixes

* ESP-IDF tidy target

* Convert ARDUINO_ARCH_ESPxx

* Update WiFiSignalSensor

* Update time ifdefs

* OTA needs millis from hal

* RestartSwitch needs delay from hal

* ESP-IDF Uart

* Fix OTA blank password

* Allow setting sdkconfig

* Fix idf partitions and allow setting sdkconfig from yaml

* Re-add read/write compat APIs and fix esp8266 uart

* Fix esp8266 store log strings in flash

* Fix ESP32 arduino preferences not initialized

* Update ifdefs

* Change how sdkconfig change is detected

* Add checks to ci-custom and fix them

* Run clang-format

* Add esp-idf clang-tidy target and fix errors

* Fixes from clang-tidy idf round 2

* Fixes from compiling tests with esp-idf

* Run clang-format

* Switch test5.yaml to esp-idf

* Implement ESP8266 Preferences

* Lint

* Re-do PIO package version selection a bit

* Fix arduinoespressif32 package version

* Fix unit tests

* Lint

* Lint fixes

* Fix readv/writev not defined

* Fix graphing component

* Re-add all old options from core/config.py

Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
2021-09-20 11:47:51 +02:00

53 lines
1.4 KiB
C++

#include "tca9548a.h"
#include "esphome/core/log.h"
namespace esphome {
namespace tca9548a {
static const char *const TAG = "tca9548a";
i2c::ErrorCode TCA9548AChannel::readv(uint8_t address, i2c::ReadBuffer *buffers, size_t cnt) {
auto err = parent_->switch_to_channel(channel_);
if (err != i2c::ERROR_OK)
return err;
return parent_->bus_->readv(address, buffers, cnt);
}
i2c::ErrorCode TCA9548AChannel::writev(uint8_t address, i2c::WriteBuffer *buffers, size_t cnt) {
auto err = parent_->switch_to_channel(channel_);
if (err != i2c::ERROR_OK)
return err;
return parent_->bus_->writev(address, buffers, cnt);
}
void TCA9548AComponent::setup() {
ESP_LOGCONFIG(TAG, "Setting up TCA9548A...");
uint8_t status = 0;
if (!this->read_register(0x00, &status, 1)) {
ESP_LOGI(TAG, "TCA9548A failed");
this->mark_failed();
return;
}
ESP_LOGD(TAG, "Channels currently open: %d", status);
}
void TCA9548AComponent::dump_config() {
ESP_LOGCONFIG(TAG, "TCA9548A:");
LOG_I2C_DEVICE(this);
}
i2c::ErrorCode TCA9548AComponent::switch_to_channel(uint8_t channel) {
if (this->is_failed())
return i2c::ERROR_NOT_INITIALIZED;
if (current_channel_ == channel)
return i2c::ERROR_OK;
uint8_t channel_val = 1 << channel;
auto err = this->write_register(0x70, &channel_val, 1);
if (err == i2c::ERROR_OK) {
current_channel_ = channel;
}
return err;
}
} // namespace tca9548a
} // namespace esphome