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298431c68f
ud3tn is available under multiple licenses and we want to reflect this in our source code. But which license information should appear first and how can we manage this efficiently in the future? The Linux Kernel uses SPDX expressions instead of boilerplate sections. This seems to be a great approach, so we do the same here. Signed-off-by: Georg Alexander Murzik <georg.murzik@d3tn.com>
48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
// SPDX-License-Identifier: BSD-3-Clause OR Apache-2.0
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#ifndef SDNV_H_INCLUDED
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#define SDNV_H_INCLUDED
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#include <stdint.h>
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/**
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* Maximum amount of bytes used by a supported SDNV.
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* (We support up to 64 raw data bits.)
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*/
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#define MAX_SDNV_SIZE 10
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enum sdnv_status {
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SDNV_IN_PROGRESS,
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SDNV_DONE,
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SDNV_ERROR
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};
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enum sdnv_error {
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SDNV_ERROR_NONE,
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SDNV_ERROR_OVERFLOW,
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SDNV_ERROR_ALREADY_DONE
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};
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struct sdnv_state {
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enum sdnv_status status;
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enum sdnv_error error;
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uint8_t bytes_parsed;
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};
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void sdnv_reset(struct sdnv_state *state);
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void sdnv_read_u8(struct sdnv_state *state, uint8_t *value, uint8_t byte);
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void sdnv_read_u16(struct sdnv_state *state, uint16_t *value, uint8_t byte);
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void sdnv_read_u32(struct sdnv_state *state, uint32_t *value, uint8_t byte);
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void sdnv_read_u64(struct sdnv_state *state, uint64_t *value, uint8_t byte);
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int_fast8_t sdnv_get_size_u8(uint8_t value);
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int_fast8_t sdnv_get_size_u16(uint16_t value);
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int_fast8_t sdnv_get_size_u32(uint32_t value);
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int_fast8_t sdnv_get_size_u64(uint64_t value);
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int_fast8_t sdnv_write_u8(uint8_t *buffer, uint8_t value);
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int_fast8_t sdnv_write_u16(uint8_t *buffer, uint16_t value);
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int_fast8_t sdnv_write_u32(uint8_t *buffer, uint32_t value);
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int_fast8_t sdnv_write_u64(uint8_t *buffer, uint64_t value);
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#endif /* SDNV_H_INCLUDED */
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