3baf7df0d1
- Formatted all .c/.cpp/.h files using LLVM style (4-space indent, 88-char lines) - Fixed macro alignment, pointer alignment, brace placement - Updated .clang-format to use Cpp language (valid enum value) - Removed clang-tidy pre-commit hook (requires additional setup) - Pre-commit now runs clang-format for automated formatting - Verified: All boards still build without errors or warnings
70 lines
1.9 KiB
C
70 lines
1.9 KiB
C
#pragma once
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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/* KISS special bytes */
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#define KISS_FEND 0xC0u
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#define KISS_FESC 0xDBu
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#define KISS_TFEND 0xDCu
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#define KISS_TFESC 0xDDu
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/* Port assignments */
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#define KISS_PORT_DATA 0u
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#define KISS_PORT_QUALITY 1u
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#define KISS_PORT_CONFIG 2u
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/* Configuration command opcodes (port 2) */
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#define KISS_CMD_RESERVED 0x00u
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#define KISS_CMD_RES_OK 0x01u
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#define KISS_CMD_RES_ERROR 0x02u
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#define KISS_CMD_GET_RADIO 0x10u
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#define KISS_CMD_SET_RADIO 0x11u
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#define KISS_CMD_GET_FREQ 0x12u
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#define KISS_CMD_SET_FREQ 0x13u
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#define KISS_CMD_GET_BW 0x14u
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#define KISS_CMD_SET_BW 0x15u
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#define KISS_CMD_GET_SF 0x16u
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#define KISS_CMD_SET_SF 0x17u
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#define KISS_CMD_GET_CR 0x18u
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#define KISS_CMD_SET_CR 0x19u
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#define KISS_CMD_GET_POWER 0x1Au
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#define KISS_CMD_SET_POWER 0x1Bu
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#define KISS_CMD_GET_SYNCWORD 0x1Cu
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#define KISS_CMD_SET_SYNCWORD 0x1Du
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#define KISS_MAX_FRAME 256u
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typedef struct {
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uint8_t port;
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uint8_t data[KISS_MAX_FRAME];
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uint16_t len;
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} kiss_frame_t;
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typedef enum {
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KISS_STATE_IDLE,
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KISS_STATE_IN_FRAME,
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KISS_STATE_ESCAPE,
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} kiss_state_t;
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typedef struct {
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kiss_state_t state;
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uint8_t buf[KISS_MAX_FRAME + 1u]; /* +1 for type byte */
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uint16_t len;
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} kiss_decoder_t;
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void kiss_decoder_init(kiss_decoder_t *dec);
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/* Feed one byte into the decoder. Returns true when a complete frame is
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ready in *frame. frame must not be NULL when return value is checked. */
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bool kiss_decode(kiss_decoder_t *dec, uint8_t byte, kiss_frame_t *frame);
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/* Encode port+data into a KISS frame. Returns bytes written, or 0 on
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overflow. */
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size_t kiss_encode(uint8_t port, const uint8_t *data, size_t len, uint8_t *dst,
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size_t dst_cap);
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/* Encode a 3-byte signal quality frame for port 1. Big-endian: int8 snr,
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int16 rssi. */
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size_t kiss_encode_quality(int8_t snr, int16_t rssi, uint8_t *dst, size_t dst_cap);
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