mirror of
https://github.com/esphome/esphome.git
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ac0d921413
* 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>
75 lines
2 KiB
C++
75 lines
2 KiB
C++
#include "sn74hc595.h"
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#include "esphome/core/log.h"
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namespace esphome {
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namespace sn74hc595 {
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static const char *const TAG = "sn74hc595";
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void SN74HC595Component::setup() {
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ESP_LOGCONFIG(TAG, "Setting up SN74HC595...");
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if (this->have_oe_pin_) { // disable output
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this->oe_pin_->setup();
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this->oe_pin_->digital_write(true);
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}
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// initialize output pins
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this->clock_pin_->setup();
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this->data_pin_->setup();
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this->latch_pin_->setup();
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this->clock_pin_->digital_write(false);
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this->data_pin_->digital_write(false);
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this->latch_pin_->digital_write(false);
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// send state to shift register
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this->write_gpio_();
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}
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void SN74HC595Component::dump_config() { ESP_LOGCONFIG(TAG, "SN74HC595:"); }
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bool SN74HC595Component::digital_read_(uint8_t pin) { return this->output_bits_ >> pin; }
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void SN74HC595Component::digital_write_(uint8_t pin, bool value) {
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uint32_t mask = 1UL << pin;
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this->output_bits_ &= ~mask;
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if (value)
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this->output_bits_ |= mask;
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this->write_gpio_();
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}
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bool SN74HC595Component::write_gpio_() {
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for (int i = this->sr_count_ - 1; i >= 0; i--) {
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uint8_t data = (uint8_t)(this->output_bits_ >> (8 * i) & 0xff);
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for (int j = 0; j < 8; j++) {
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this->data_pin_->digital_write(data & (1 << (7 - j)));
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this->clock_pin_->digital_write(true);
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this->clock_pin_->digital_write(false);
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}
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}
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// pulse latch to activate new values
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this->latch_pin_->digital_write(true);
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this->latch_pin_->digital_write(false);
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// enable output if configured
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if (this->have_oe_pin_) {
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this->oe_pin_->digital_write(false);
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}
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return true;
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}
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float SN74HC595Component::get_setup_priority() const { return setup_priority::IO; }
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void SN74HC595GPIOPin::digital_write(bool value) {
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this->parent_->digital_write_(this->pin_, value != this->inverted_);
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}
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std::string SN74HC595GPIOPin::dump_summary() const {
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char buffer[32];
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snprintf(buffer, sizeof(buffer), "%u via SN74HC595", pin_);
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return buffer;
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}
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} // namespace sn74hc595
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} // namespace esphome
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