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8b57c2f735
Add the C++ `final` specifier to leaf, user-configurable component classes and automation action/trigger/condition primitives so that classes meant to be terminal cannot be subclassed by external components. Only classes never used as a base anywhere in the tree are marked. Part 8 of 21, split alphabetically by component (hm3301 .. integration).
50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
#pragma once
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#if defined(USE_ARDUINO) && !defined(USE_ESP32)
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#include <Wire.h>
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#include "esphome/core/component.h"
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#include "i2c_bus.h"
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namespace esphome::i2c {
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enum RecoveryCode {
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RECOVERY_FAILED_SCL_LOW,
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RECOVERY_FAILED_SDA_LOW,
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RECOVERY_COMPLETED,
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};
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class ArduinoI2CBus final : public InternalI2CBus, public Component {
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public:
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void setup() override;
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void dump_config() override;
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ErrorCode write_readv(uint8_t address, const uint8_t *write_buffer, size_t write_count, uint8_t *read_buffer,
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size_t read_count) override;
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float get_setup_priority() const override { return setup_priority::BUS; }
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void set_scan(bool scan) { scan_ = scan; }
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void set_sda_pin(uint8_t sda_pin) { sda_pin_ = sda_pin; }
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void set_scl_pin(uint8_t scl_pin) { scl_pin_ = scl_pin; }
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void set_frequency(uint32_t frequency) { frequency_ = frequency; }
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void set_timeout(uint32_t timeout) { timeout_ = timeout; }
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int get_port() const override { return 0; }
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private:
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void recover_();
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void set_pins_and_clock_();
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RecoveryCode recovery_result_;
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protected:
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TwoWire *wire_;
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uint8_t sda_pin_;
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uint8_t scl_pin_;
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uint32_t frequency_;
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uint32_t timeout_ = 0;
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bool initialized_ = false;
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};
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} // namespace esphome::i2c
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#endif // defined(USE_ARDUINO) && !defined(USE_ESP32)
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