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85 lines
1.5 KiB
85 lines
1.5 KiB
6 years ago
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// Created by MightyPork on 2018/02/01.
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//
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#ifndef GEX_F072_OW_LOW_LEVEL_H
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#define GEX_F072_OW_LOW_LEVEL_H
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#ifndef OW_INTERNAL
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#error bad include!
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#endif
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#include "platform.h"
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#include "unit_base.h"
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#include "_ow_low_level.h"
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/**
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* Compute a 1-wire type checksum.
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* If the buffer includes the checksum, the result should be 0.
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*
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* (this function may be used externally, or you can delete the implementation
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* from the c file if another implementation is already available)
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*
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* @param[in] buf - buffer of bytes to verify
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* @param[in] len - buffer length
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* @return checksum
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*/
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uint8_t ow_checksum(const uint8_t *buf, uint32_t len);
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/**
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* Reset the 1-wire bus
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*/
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bool ow_reset(Unit *unit);
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/**
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* Write a bit to the 1-wire bus
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*/
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void ow_write_bit(Unit *unit, bool bit);
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/**
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* Read a bit from the 1-wire bus
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*/
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bool ow_read_bit(Unit *unit);
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/**
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* Write a byte to the 1-wire bus
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*/
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void ow_write_u8(Unit *unit, uint8_t byte);
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/**
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* Write a halfword to the 1-wire bus
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*/
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void ow_write_u16(Unit *unit, uint16_t halfword);
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/**
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* Write a word to the 1-wire bus
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*/
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void ow_write_u32(Unit *unit, uint32_t word);
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/**
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* Write a doubleword to the 1-wire bus
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*/
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void ow_write_u64(Unit *unit, uint64_t dword);
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/**
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* Read a byte form the 1-wire bus
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*/
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uint8_t ow_read_u8(Unit *unit);
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/**
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* Read a halfword form the 1-wire bus
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*/
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uint16_t ow_read_u16(Unit *unit);
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/**
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* Read a word form the 1-wire bus
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*/
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uint32_t ow_read_u32(Unit *unit);
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/**
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* Read a doubleword form the 1-wire bus
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*/
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uint64_t ow_read_u64(Unit *unit);
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#endif //GEX_F072_OW_LOW_LEVEL_H
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