portersky
df3d399610
Switch CRC from CCITT (0x07) to DVB-S2 (0xD5) to match ELRS. Adopt ELRS USB frame format: [addr][length][type][payload][crc]. Update frame type constants to match current ELRS protocol values. New skeleton modules (stub implementations with TODO comments): - crsf_telemetry.h/.c: telemetry decoders (GPS, battery, link..) - crsf_stream.h/.c: incremental streaming frame reader - crsf_param.h/.c: parameter protocol (read/write/set_power) Retained old frame format as *_legacy functions for backward compatibility with existing telemetry tool and tests. Add cel_serial_find_elrs_port() and cel_serial_open_probe() stubs to serial module for port auto-detection and baud probing.
55 lines
1.8 KiB
C
55 lines
1.8 KiB
C
#pragma once
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#include <stdint.h>
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#include <stddef.h>
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#include "celrs/crsf.h"
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#include "celrs/serial.h"
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/* TX power levels (mW) */
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#define CEL_POWER_10_MW 10
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#define CEL_POWER_25_MW 25
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#define CEL_POWER_50_MW 50
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#define CEL_POWER_100_MW 100
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#define CEL_POWER_250_MW 250
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#define CEL_POWER_500_MW 500
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#define CEL_POWER_1000_MW 1000
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#define CEL_POWER_2000_MW 2000
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/* Parsed parameter entry */
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typedef struct {
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uint8_t index;
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uint8_t type; /* CEL_PARAM_* */
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uint8_t hidden;
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char name[64];
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/* TEXT_SELECT specific */
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char options[256]; /* semicolon-separated option strings */
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uint8_t value;
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uint8_t min_val;
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uint8_t max_val;
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uint8_t default_val;
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} cel_crsf_param;
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/* Send a device ping and wait for DEVICE_INFO response.
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* Returns 0 on success, -1 on timeout/error. */
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int cel_crsf_param_ping(cel_serial_port* port, float timeout_sec);
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/* Read a single parameter by index.
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* Returns 0 on success (out filled), -1 on timeout/error. */
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int cel_crsf_param_read(cel_serial_port* port, uint8_t index,
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cel_crsf_param* out, float timeout_sec);
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/* Write a parameter value.
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* Returns 0 on success, -1 on error. */
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int cel_crsf_param_write(cel_serial_port* port, uint8_t index,
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uint8_t value);
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/* Set TX output power by enumerating parameters.
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* mw: transmit power in mW (one of CEL_POWER_* constants).
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* Returns 0 on success, -1 on error. */
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int cel_crsf_param_set_power(cel_serial_port* port, int mw,
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float timeout_sec);
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/* Parse a PARAM_ENTRY payload into a cel_crsf_param struct.
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* Returns 0 on success, -1 on bad payload. */
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int cel_crsf_param_parse(cel_crsf_param* out, uint8_t const* payload,
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size_t len);
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