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Add tca9555 GPIO driver (#7146)

Co-authored-by: Michal Obrembski <michal@obrembski.com>
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
This commit is contained in:
Michał Obrembski
2024-09-19 06:17:22 +02:00
committed by GitHub
parent 6d24e9ebb5
commit fb7e7eb80b
12 changed files with 477 additions and 0 deletions

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#pragma once
#include <array>
#include <cstdint>
#include "esphome/core/hal.h"
namespace esphome {
namespace gpio_expander {
/// @brief A class to cache the read state of a GPIO expander.
template<typename T, T N> class CachedGpioExpander {
public:
bool digital_read(T pin) {
if (!this->read_cache_invalidated_[pin]) {
this->read_cache_invalidated_[pin] = true;
return this->digital_read_cache(pin);
}
return this->digital_read_hw(pin);
}
void digital_write(T pin, bool value) { this->digital_write_hw(pin, value); }
protected:
virtual bool digital_read_hw(T pin) = 0;
virtual bool digital_read_cache(T pin) = 0;
virtual void digital_write_hw(T pin, bool value) = 0;
void reset_pin_cache_() {
for (T i = 0; i < N; i++) {
this->read_cache_invalidated_[i] = false;
}
}
std::array<bool, N> read_cache_invalidated_{};
};
} // namespace gpio_expander
} // namespace esphome