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62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
#pragma once
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#include "esphome/core/component.h"
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#include "esphome/core/hal.h"
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#include "esphome/core/helpers.h"
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#include <vector>
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namespace esphome {
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namespace sn74hc165 {
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class SN74HC165Component : public Component {
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public:
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SN74HC165Component() = default;
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void setup() override;
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void loop() override;
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float get_setup_priority() const override;
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void dump_config() override;
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void set_data_pin(GPIOPin *pin) { this->data_pin_ = pin; }
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void set_clock_pin(GPIOPin *pin) { this->clock_pin_ = pin; }
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void set_load_pin(GPIOPin *pin) { this->load_pin_ = pin; }
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void set_clock_inhibit_pin(GPIOPin *pin) { this->clock_inhibit_pin_ = pin; }
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void set_sr_count(uint8_t count) {
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this->sr_count_ = count;
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this->input_bits_.resize(count * 8);
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}
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protected:
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friend class SN74HC165GPIOPin;
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bool digital_read_(uint16_t pin);
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void read_gpio_();
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GPIOPin *data_pin_;
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GPIOPin *clock_pin_;
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GPIOPin *load_pin_;
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GPIOPin *clock_inhibit_pin_;
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uint8_t sr_count_;
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std::vector<bool> input_bits_;
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};
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/// Helper class to expose a SC74HC165 pin as an internal input GPIO pin.
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class SN74HC165GPIOPin : public GPIOPin, public Parented<SN74HC165Component> {
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public:
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void setup() override {}
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void pin_mode(gpio::Flags flags) override {}
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bool digital_read() override;
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void digital_write(bool value) override{};
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std::string dump_summary() const override;
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void set_pin(uint16_t pin) { pin_ = pin; }
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void set_inverted(bool inverted) { inverted_ = inverted; }
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protected:
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uint16_t pin_;
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bool inverted_;
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};
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} // namespace sn74hc165
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} // namespace esphome
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