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ADR-110: ESP32-C6 firmware extension (#764)

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Closes the firmware-side ADR-110 design at v0.7.0-esp32 after a 38-iter /loop SOTA sprint.

Headline (bench, COM9+COM12 ESP32-C6):
- 99.56% cross-board RX, 104.1 µs smoothed offset stdev (≤100 µs §2.4 target met)
- 3.95× EMA suppression, 1.4 ppm crystal skew preserved

4 firmware releases: v0.6.7 / v0.6.8 / v0.6.9 / v0.7.0-esp32.
42 ADR-110 unit tests, 1761 v2 workspace tests, full Firmware CI + QEMU green.
This commit is contained in:
rUv
2026-05-23 15:34:48 -04:00
committed by GitHub
parent 5d544126ee
commit 00a234eda8
63 changed files with 5864 additions and 63 deletions
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firmware/esp32-csi-node/test/fuzz_csi_serialize.c
+15
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@@ -60,6 +60,10 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
uint8_t channel;
int8_t noise_floor;
uint8_t out_buf_scale; /* Controls output buffer size: 0-255. */
/* ADR-110: fuzz the new HE-branch + legacy-branch input fields too so
* the byte 18/19 encoding code path is exercised. */
uint8_t he_inputs[2] = {0}; /* cur_bb_format (4 bits) + second (4 bits) packed */
uint8_t legacy_inputs = 0; /* sig_mode (2) + cwb (1) + stbc (1) packed */
fuzz_read(&cursor, &remaining, &test_case, 1);
fuzz_read(&cursor, &remaining, &iq_len_raw, 2);
@@ -67,6 +71,8 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
fuzz_read(&cursor, &remaining, &channel, 1);
fuzz_read(&cursor, &remaining, &noise_floor, 1);
fuzz_read(&cursor, &remaining, &out_buf_scale, 1);
fuzz_read(&cursor, &remaining, he_inputs, 2);
fuzz_read(&cursor, &remaining, &legacy_inputs, 1);
/* --- Test case 0: Normal operation with fuzz-controlled values --- */
@@ -75,6 +81,15 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
info.rx_ctrl.rssi = rssi;
info.rx_ctrl.channel = channel & 0x0F; /* 4-bit field */
info.rx_ctrl.noise_floor = noise_floor;
/* ADR-110: feed both branch families. Only the active branch (chosen
* at compile time by CONFIG_SOC_WIFI_HE_SUPPORT) will read its fields;
* the other set is set-but-not-read. Both must be assignable without
* triggering UBSAN bitfield-overflow. */
info.rx_ctrl.cur_bb_format = he_inputs[0] & 0x0F; /* 0..15 valid input space */
info.rx_ctrl.second = he_inputs[1] & 0x0F;
info.rx_ctrl.sig_mode = legacy_inputs & 0x03;
info.rx_ctrl.cwb = (legacy_inputs >> 2) & 0x01;
info.rx_ctrl.stbc = (legacy_inputs >> 3) & 0x01;
/* Use remaining fuzz data as I/Q buffer content. */
uint16_t iq_len;