esphome/esphome/components/sn74hc595/sn74hc595.cpp
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

75 lines
2 KiB
C++

#include "sn74hc595.h"
#include "esphome/core/log.h"
namespace esphome {
namespace sn74hc595 {
static const char *const TAG = "sn74hc595";
void SN74HC595Component::setup() {
ESP_LOGCONFIG(TAG, "Setting up SN74HC595...");
if (this->have_oe_pin_) { // disable output
this->oe_pin_->setup();
this->oe_pin_->digital_write(true);
}
// initialize output pins
this->clock_pin_->setup();
this->data_pin_->setup();
this->latch_pin_->setup();
this->clock_pin_->digital_write(false);
this->data_pin_->digital_write(false);
this->latch_pin_->digital_write(false);
// send state to shift register
this->write_gpio_();
}
void SN74HC595Component::dump_config() { ESP_LOGCONFIG(TAG, "SN74HC595:"); }
bool SN74HC595Component::digital_read_(uint8_t pin) { return this->output_bits_ >> pin; }
void SN74HC595Component::digital_write_(uint8_t pin, bool value) {
uint32_t mask = 1UL << pin;
this->output_bits_ &= ~mask;
if (value)
this->output_bits_ |= mask;
this->write_gpio_();
}
bool SN74HC595Component::write_gpio_() {
for (int i = this->sr_count_ - 1; i >= 0; i--) {
uint8_t data = (uint8_t)(this->output_bits_ >> (8 * i) & 0xff);
for (int j = 0; j < 8; j++) {
this->data_pin_->digital_write(data & (1 << (7 - j)));
this->clock_pin_->digital_write(true);
this->clock_pin_->digital_write(false);
}
}
// pulse latch to activate new values
this->latch_pin_->digital_write(true);
this->latch_pin_->digital_write(false);
// enable output if configured
if (this->have_oe_pin_) {
this->oe_pin_->digital_write(false);
}
return true;
}
float SN74HC595Component::get_setup_priority() const { return setup_priority::IO; }
void SN74HC595GPIOPin::digital_write(bool value) {
this->parent_->digital_write_(this->pin_, value != this->inverted_);
}
std::string SN74HC595GPIOPin::dump_summary() const {
char buffer[32];
snprintf(buffer, sizeof(buffer), "%u via SN74HC595", pin_);
return buffer;
}
} // namespace sn74hc595
} // namespace esphome