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a846b063f96d39b5f346eca447a431b433de6778
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8 Commits
Author SHA1 Message Date
portersky a846b063f9 feat: implement frame parse and streaming reader 
cel_crsf_frame_parse() parses ELRS USB format frames:
  [addr][length][type][payload...][crc]

cel_crsf_stream_* provides incremental parsing from a byte
stream: skips invalid sync bytes, discards bad CRC frames,
buffers partial frames across feed calls.
 2026-06-14 20:51:57 +02:00
portersky dde27ab566 refactor: remove unused legacy frame format code 
The old [0xC8][dest][src][type][size][payload][crc] format was never
used with real hardware. Remove cel_crsf_frame_legacy, *_legacy()
functions, and update tests/tools accordingly.
 2026-06-14 20:49:45 +02:00
portersky df3d399610 feat: adopt ELRS USB CRSF frame format, add skeleton modules 
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.
 2026-06-14 20:47:56 +02:00
portersky 794ee9989a feat: implement Windows serial platform backend 
Add cel_serial_platform_open/close/read/write/flush for
Windows using CreateFileA, DCB for baud/8N1, and
SetCommTimeouts for non-blocking reads.

serial.c now delegates all operations to the platform
backend via a cel_serial_platform_handle, and
test_serial.c mocks that backend with CMock.
 2026-06-14 20:37:38 +02:00
portersky a1ea02771c refactor: make cel_serial_read non-blocking 
Drop timeout_ms; read now returns immediately with whatever
data is available (0 if none), so callers don't block the rest
of their loop waiting on serial I/O.

telemetry's poll loop now sleeps interval_ms itself between
empty reads via a small sleep_ms helper.
 2026-06-14 20:29:47 +02:00
portersky 2761bcb16c refactor: mock serial platform backend in test_serial 
test_serial mocked log_write.h, which serial.c never calls.
Split celrs_serial into celrs_serial (platform-agnostic logic)
and celrs_serial_platform (real Win/POSIX backend), matching
the celrs_logger/celrs_log_write split.

test_serial now mocks celrs/platform/serial_internal.h and
links only celrs_serial, so the list-ports tests verify the
max_ports clamping and pass-through logic without hitting the
real registry or /dev.
 2026-06-14 20:18:17 +02:00
portersky a0868cd3b7 feat: add serial port listing and CLI flags 
Implement cel_serial_list_ports/cel_serial_free_ports with
platform backends: Windows reads HKLM\HARDWARE\DEVICEMAP\
SERIALCOMM (fast, single registry read), POSIX scans /dev for
ttyUSB*/ttyACM*.

telemetry tool gains --list, --port, and --baudrate flags;
baud rate was previously hardcoded to 400000. Rename the
tool_telemetry CMake target to telemetry.

Fix test_free_ports_zero_count, which passed a stack array to
cel_serial_free_ports (which calls free() on it), corrupting
the heap.
 2026-06-14 20:13:57 +02:00
portersky cd7d411332 Inital commit
CI / Windows / Clang (push) Has been cancelled
CI / macOS (push) Has been cancelled
2026-06-14 19:50:16 +02:00