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68 lines
1.6 KiB
C++
68 lines
1.6 KiB
C++
#pragma once
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#include "esphome/core/hal.h"
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#include "esphome/core/log.h"
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#include <vector>
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namespace esphome {
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namespace one_wire {
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class OneWireBus {
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public:
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/// Write a word to the bus. LSB first.
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virtual void write8(uint8_t val) = 0;
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/// Write a 64 bit unsigned integer to the bus. LSB first.
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virtual void write64(uint64_t val) = 0;
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/// Write a command to the bus that addresses all devices by skipping the ROM.
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void skip();
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/// Read an 8 bit word from the bus.
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virtual uint8_t read8() = 0;
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/// Read an 64-bit unsigned integer from the bus.
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virtual uint64_t read64() = 0;
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/// Select a specific address on the bus for the following command.
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bool select(uint64_t address);
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/// Return the list of found devices.
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const std::vector<uint64_t> &get_devices();
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/// Search for 1-Wire devices on the bus.
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void search();
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/// Get the description string for this model.
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const LogString *get_model_str(uint8_t model);
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protected:
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std::vector<uint64_t> devices_;
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/// log the found devices
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void dump_devices_(const char *tag);
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/** Reset the bus, should be done before all write operations.
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*
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* Takes approximately 1ms.
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*
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* @return Whether the operation was successful.
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*/
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bool reset_();
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/**
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* Bus Reset
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* @return -1: signal fail, 0: no device detected, 1: device detected
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*/
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virtual int reset_int() = 0;
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/// Reset the device search.
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virtual void reset_search() = 0;
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/// Search for a 1-Wire device on the bus. Returns 0 if all devices have been found.
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virtual uint64_t search_int() = 0;
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};
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} // namespace one_wire
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} // namespace esphome
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