7a3a1aaf0d
* Add 1-wire thermometer example app stub * Working 1-wire thermometer app * Refactor app to use threads * Clean up code, add comments * Add CRC checking * Increase update period * Fix error in fbt * Revert the old update period * Use settable pin in onewire_host * Use settable pin for onewire_slave * Clear EXTI flag after callback, make private methods static in onewire_slave * Do not hardcode GPIO pin number * Remove iButton hal from furi_hal_rfid * Remove most of furi_hal_ibutton * Add some of furi_hal_ibutton back * Slightly neater code * Fix formatting * Fix PVS-studio warnings * Update CODEOWNERS * Add furi_hal_gpio_get_ext_pin_number * Create README.md * FuriHal: move furi_hal_gpio_get_ext_pin_number to resources --------- Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
122 lines
2.0 KiB
C
122 lines
2.0 KiB
C
/**
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* @file one_wire_host.h
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*
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* 1-Wire host (master) library
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*/
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#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#include <furi_hal_gpio.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef enum {
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CONDITIONAL_SEARCH = 0, /**< Search for alarmed device */
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NORMAL_SEARCH = 1, /**< Search all devices */
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} OneWireHostSearchMode;
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typedef struct OneWireHost OneWireHost;
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/**
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* Allocate onewire host bus
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* @param pin
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* @return OneWireHost*
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*/
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OneWireHost* onewire_host_alloc(const GpioPin* gpio_pin);
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/**
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* Deallocate onewire host bus
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* @param host
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*/
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void onewire_host_free(OneWireHost* host);
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/**
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* Reset bus
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* @param host
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* @return bool
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*/
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bool onewire_host_reset(OneWireHost* host);
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/**
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* Read one bit
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* @param host
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* @return bool
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*/
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bool onewire_host_read_bit(OneWireHost* host);
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/**
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* Read one byte
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* @param host
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* @return uint8_t
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*/
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uint8_t onewire_host_read(OneWireHost* host);
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/**
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* Read many bytes
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* @param host
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* @param buffer
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* @param count
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*/
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void onewire_host_read_bytes(OneWireHost* host, uint8_t* buffer, uint16_t count);
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/**
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* Write one bit
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* @param host
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* @param value
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*/
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void onewire_host_write_bit(OneWireHost* host, bool value);
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/**
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* Write one byte
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* @param host
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* @param value
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*/
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void onewire_host_write(OneWireHost* host, uint8_t value);
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/**
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* Skip ROM command
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* @param host
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*/
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void onewire_host_skip(OneWireHost* host);
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/**
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* Start working with the bus
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* @param host
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*/
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void onewire_host_start(OneWireHost* host);
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/**
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* Stop working with the bus
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* @param host
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*/
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void onewire_host_stop(OneWireHost* host);
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/**
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*
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* @param host
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*/
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void onewire_host_reset_search(OneWireHost* host);
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/**
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*
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* @param host
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* @param family_code
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*/
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void onewire_host_target_search(OneWireHost* host, uint8_t family_code);
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/**
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*
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* @param host
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* @param newAddr
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* @param mode
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* @return uint8_t
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*/
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uint8_t onewire_host_search(OneWireHost* host, uint8_t* new_addr, OneWireHostSearchMode mode);
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#ifdef __cplusplus
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}
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#endif
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