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Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com>
68 lines
1.9 KiB
C++
68 lines
1.9 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/components/i2c/i2c.h"
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namespace esphome::ch423 {
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class CH423Component : public Component, public i2c::I2CDevice {
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public:
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CH423Component() = default;
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/// Check i2c availability and setup masks
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void setup() override;
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/// Poll for input changes periodically
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void loop() override;
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/// Helper function to read the value of a pin.
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bool digital_read(uint8_t pin);
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/// Helper function to write the value of a pin.
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void digital_write(uint8_t pin, bool value);
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/// Helper function to set the pin mode of a pin.
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void pin_mode(uint8_t pin, gpio::Flags flags);
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float get_setup_priority() const override;
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float get_loop_priority() const override;
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void dump_config() override;
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protected:
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bool write_reg_(uint8_t reg, uint8_t value);
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uint8_t read_reg_(uint8_t reg);
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bool read_inputs_();
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bool write_outputs_();
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/// The mask to write as output state - 1 means HIGH, 0 means LOW
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uint32_t output_bits_{0x00};
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/// Flags to check if read previously during this loop
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uint8_t pin_read_flags_{0x00};
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/// Copy of last read values
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uint8_t input_bits_{0x00};
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/// System parameters
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uint8_t sys_params_{0x00};
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};
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/// Helper class to expose a CH423 pin as a GPIO pin.
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class CH423GPIOPin : public GPIOPin {
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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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size_t dump_summary(char *buffer, size_t len) const override;
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void set_parent(CH423Component *parent) { parent_ = parent; }
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void set_pin(uint8_t pin) { pin_ = pin; }
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void set_inverted(bool inverted) { inverted_ = inverted; }
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void set_flags(gpio::Flags flags);
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gpio::Flags get_flags() const override { return this->flags_; }
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protected:
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CH423Component *parent_{};
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uint8_t pin_{};
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bool inverted_{};
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gpio::Flags flags_{};
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};
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} // namespace esphome::ch423
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