modules/woz_aliro/include/aliro_rssi

Overview

BLE-RSSI ranging power gate: decides when the phone is close enough that arming UWB ranging is worth the radio's RX power. Pure sample-in/state-out logic (EWMA smoothing, open/close hysteresis with a close hold-off, optional rise-rate fast open for fast approaches) so it host-tests without a radio; the reader feeds it connection RSSI samples and defers Reader-Status-AP-Completed until it opens.

used by aliro_reader.c aliro_rssi_gate.c

API

C`struct aliro_rssi_gate_cfg`

modules/woz_aliro/include/aliro_rssi_gate.h:21

Tuning knobs. Kconfig supplies the build defaults (ALIRO_RSSI_GATE_CFG_DEFAULT). The thresholds come from a measured curve on one rig (docs/power-profile.md); they are per-room and per-handset, so re-run the calibration for a new one.

C`struct aliro_rssi_gate`

modules/woz_aliro/include/aliro_rssi_gate.h:64

Gate state. All-zeroes == reset/closed, so a zeroed session slot needs no init call. Internal values are Q4 fixed point (dBm * 16).

#`#define CONFIG_WOZ_RSSI_GATE_OPEN_DBM (-55)`

modules/woz_aliro/include/aliro_rssi_gate.h:33

#`#define CONFIG_WOZ_RSSI_GATE_CLOSE_DBM (-65)`

modules/woz_aliro/include/aliro_rssi_gate.h:36

#`#define CONFIG_WOZ_RSSI_GATE_CLOSE_HOLD_MS (3000)`

modules/woz_aliro/include/aliro_rssi_gate.h:39

#`#define CONFIG_WOZ_RSSI_GATE_SLOPE_DB (8)`

modules/woz_aliro/include/aliro_rssi_gate.h:42

#`#define CONFIG_WOZ_RSSI_GATE_MAX_HOLD_MS (0)`

modules/woz_aliro/include/aliro_rssi_gate.h:45

#`#define ALIRO_RSSI_UNAVAILABLE 127`

modules/woz_aliro/include/aliro_rssi_gate.h:60

F`void aliro_rssi_gate_reset(struct aliro_rssi_gate *g)`

modules/woz_aliro/include/aliro_rssi_gate.h:86

F`bool aliro_rssi_gate_feed(struct aliro_rssi_gate g, const struct aliro_rssi_gate_cfg cfg, int8_t rssi_dbm, uint32_t now_ms)`

modules/woz_aliro/include/aliro_rssi_gate.h:90

F`bool aliro_rssi_gate_is_open(const struct aliro_rssi_gate *g)`

modules/woz_aliro/include/aliro_rssi_gate.h:94

F`void aliro_rssi_gate_hold_begin(struct aliro_rssi_gate *g, uint32_t now_ms)`

modules/woz_aliro/include/aliro_rssi_gate.h:106

F`bool aliro_rssi_gate_was_capped(const struct aliro_rssi_gate *g)`

modules/woz_aliro/include/aliro_rssi_gate.h:110

F`int16_t aliro_rssi_gate_level_dbm(const struct aliro_rssi_gate *g)`

modules/woz_aliro/include/aliro_rssi_gate.h:113

Overview

API

Cstruct aliro_rssi_gate_cfg

Cstruct aliro_rssi_gate

##define CONFIG_WOZ_RSSI_GATE_OPEN_DBM (-55)

##define CONFIG_WOZ_RSSI_GATE_CLOSE_DBM (-65)

##define CONFIG_WOZ_RSSI_GATE_CLOSE_HOLD_MS (3000)

##define CONFIG_WOZ_RSSI_GATE_SLOPE_DB (8)

##define CONFIG_WOZ_RSSI_GATE_MAX_HOLD_MS (0)

##define ALIRO_RSSI_UNAVAILABLE 127

Fvoid aliro_rssi_gate_reset(struct aliro_rssi_gate *g)

Fbool aliro_rssi_gate_feed(struct aliro_rssi_gate *g, const struct aliro_rssi_gate_cfg *cfg, int8_t rssi_dbm, uint32_t now_ms)

Fbool aliro_rssi_gate_is_open(const struct aliro_rssi_gate *g)

Fvoid aliro_rssi_gate_hold_begin(struct aliro_rssi_gate *g, uint32_t now_ms)

Fbool aliro_rssi_gate_was_capped(const struct aliro_rssi_gate *g)

Fint16_t aliro_rssi_gate_level_dbm(const struct aliro_rssi_gate *g)