mirror of
https://github.com/armel/uv-k1-k5v3-firmware-custom.git
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1418 lines
59 KiB
C
1418 lines
59 KiB
C
/* Copyright 2026 Armel F4HWN
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* https://github.com/armel
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "app/foxhunt.h"
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#ifdef ENABLE_FEAT_F4HWN_FOXHUNT
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#if defined(ENABLE_UART) || defined(ENABLE_USB)
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#include "app/uart.h"
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#endif
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#ifdef ENABLE_FEAT_F4HWN_K5VIEWER
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#include "k5viewer.h"
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#endif
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// Signal window mapped onto the RSSI bar, in dBm.
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// Roughly S0 (empty) to S9 + 40 dB (full), IARU VHF/UHF scale.
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#define FOXHUNT_DBM_FLOOR (-141)
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#define FOXHUNT_DBM_CEIL (-53)
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// Gauge geometry inside the main frame buffer (y in 0..55, status line excluded).
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// 13 segments on the IARU S-meter scale: S1..S9 are 6 dB apart, the four marks
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// past S9 (+10..+40) are 10 dB apart, so the axis compresses at the top.
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#define FOXHUNT_BAR_X0 6 // leftmost segment x (centres the 13 segments)
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#define FOXHUNT_SEG_COUNT 13 // S1..S9 + (+10..+40)
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#define FOXHUNT_SEG_PITCH 9 // px between segment starts
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#define FOXHUNT_SEG_W 8 // segment width
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#define FOXHUNT_SEG_BOTTOM 37 // base the staircase grows up from
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// Refresh period and trend sampling window.
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#define FOXHUNT_TICK_MS 50
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#define FOXHUNT_TREND_TICKS 20 // compare the level roughly once per second
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// Signal-history graph: a full-width scrolling trace of the level over the last
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// seconds, on the same 13-level S scale as the staircase (FOXHUNT_FillCount). It is
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// an alternate main gauge, toggled with the 2 key. The reading is EMA-smoothed each
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// tick; one sample is stored every FOXHUNT_HIST_DECIM ticks, so the visible window
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// spans LEN * DECIM * TICK_MS (120 * 3 * 50 ms = 18 s).
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#define FOXHUNT_HIST_LEN 120 // samples kept (also the graph width in px)
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#define FOXHUNT_HIST_DECIM 3 // ticks between stored samples (3 * 50 ms = 150 ms)
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#define FOXHUNT_GRAPH_X0 4 // left column of the graph (frame-buffer x)
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#define FOXHUNT_GRAPH_TOP 27 // top row (level 13, S9+40)
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#define FOXHUNT_GRAPH_BOT 45 // baseline (axis) row
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#define FOXHUNT_GRAPH_FLOOR 2 // gap between the level-0 line and the baseline, so
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// the lowest reading never sits on the axis
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// Main-gauge mode cycled by the 2 key.
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#define FOXHUNT_GRAPH_BAR 0 // S-meter staircase (default)
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#define FOXHUNT_GRAPH_HIST 1 // full-width signal history
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// Geiger audio: the blip RATE tracks the signal level (faster = closer), the
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// pitch rises too as a secondary cue. Below the silence floor, no blips at all.
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#define FOXHUNT_AUDIO_SETTLE_MS 60 // audio amplifier warm-up after enabling the speaker
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#define FOXHUNT_BLIP_MS 50 // tone duration per blip
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#define FOXHUNT_RATE_SLOW_TICKS 20 // ticks between blips at the floor (~1/s)
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#define FOXHUNT_RATE_FAST_TICKS 2 // ticks between blips at the ceiling (fast)
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#define FOXHUNT_SILENCE_DBM (-120) // stay silent below this level (noise floor)
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#define FOXHUNT_TONE_MIN 400 // Hz at the floor of the window
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#define FOXHUNT_TONE_MAX 2400 // Hz at the ceiling of the window
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// Audio mode cycled by the 1 key: silent -> Geiger beep -> received station.
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#define FOXHUNT_AUDIO_OFF 0
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#define FOXHUNT_AUDIO_BEEP 1
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#define FOXHUNT_AUDIO_STATION 2
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// --- Beacon (fox) sub-mode ---------------------------------------------------
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// Turns the radio into the hidden transmitter: each cycle keys up on the TX VFO and
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// repeats the CW fox identifier (MOE..MO5, or "<call> MOE") in Morse for the TX window,
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// then stays silent for the (adjustable) idle gap. The carrier stays up during the
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// window; only the tone modulation is keyed on/off (EnterTxMute/ExitTxMute) = MCW on FM.
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#define FOXHUNT_BEACON_TONE_HZ 1000 // CW tone pitch (Hz)
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#define FOXHUNT_MORSE_UNIT_MS 100 // one Morse time unit (~12 WPM, ARDF pace)
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#define FOXHUNT_BEACON_IDLE_DEF 30 // default silence between IDs (s)
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#define FOXHUNT_BEACON_IDLE_MIN 5 // shortest idle gap (s)
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#define FOXHUNT_BEACON_IDLE_MAX 240 // longest idle gap (s) — 4 min = the ARDF
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// silence of a 5-fox cycle (60 s TX x4)
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#define FOXHUNT_BEACON_IDLE_STEP 5 // idle adjust step (s)
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// TX window: the ID is repeated for this many seconds each cycle (a real ARDF fox keys
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// up for a fixed slot, not a single one-shot). 60 s = the classic ARDF slot.
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#define FOXHUNT_BEACON_TX_DEF 30 // default TX window (s)
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#define FOXHUNT_BEACON_TX_MIN 5 // shortest TX window (s)
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#define FOXHUNT_BEACON_TX_MAX 60 // longest TX window (s)
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#define FOXHUNT_BEACON_TX_STEP 5 // TX adjust step (s)
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#define FOXHUNT_CALLSIGN_ADDR 0x00A0C8u // boot message line 1 in SPI flash
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#define FOXHUNT_CALLSIGN_MAX 12 // maximum boot-message characters used by the beacon
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// Fox identifier (3 key). MOE..MO5 are the five standard IARU ARDF foxes ("MO" + 1..5
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// dits: E I S H 5); MO is the ARDF finish/home beacon (transmitted continuously on a real
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// course — here it rides the normal TX/IDLE cycle, so set a short IDLE for a near-constant
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// MO); CALL prefixes the operator's callsign (legal ID on the ham bands): "<call> MOE".
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// Pure MOE..MO5 / MO (no callsign) suit casual / PMR fox games.
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#define FOXHUNT_FOX_MOE 0
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#define FOXHUNT_FOX_MOI 1
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#define FOXHUNT_FOX_MOS 2
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#define FOXHUNT_FOX_MOH 3
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#define FOXHUNT_FOX_MO5 4
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#define FOXHUNT_FOX_MO 5
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#define FOXHUNT_FOX_CALL 6
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#define FOXHUNT_FOX_COUNT 7
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// Framebuffer lines for the transmitted message (gFontBig spans two lines each):
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// CALL id shows the callsign on _CALL and the "MOx" below on _ID; a pure single-word
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// fox (MOE..MO5) is centred on _ONE.
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#define FOXHUNT_MSG_LINE_CALL 1
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#define FOXHUNT_MSG_LINE_ID 3
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#define FOXHUNT_MSG_LINE_ONE 2
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// Front-end gain ladder (KEY_3), written straight to the BK4829 gain register REG_13.
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// Fields (LSB->MSB): pga[2:0], mixer[4:3], lna[7:5], lnaS[9:8]; gain tables live in
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// bk4829.c (BK4819_GetRxGain_dB). The RX default is 0x03DF (pga7/mixer3/lna6/lnaS3).
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//
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// Steps 0..3 attenuate the PGA only (the last stage) — {pga 7,5,3,1} = 0/-6/-15/-27 dB
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// on top of the default — same behaviour as before. Steps 4..5 attenuate at the *front*
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// of the chain instead: right on top of the fox the LNA saturates, so cutting after it
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// (PGA) no longer tracks the field; reducing the LNA itself brings it back into its
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// linear region and restores the gradient for the final approach.
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//
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// What "BYP" / "BYP+" actually are: a label of convenience, NOT a hardware bypass — the
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// BK4829 has no LNA-bypass switch we flip here. Both steps simply keep the PGA at minimum
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// and pull the front-end gain fields of REG_13 further down:
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// BYP (step 4): LNA reduced (lna 6->3) — front-end starts giving
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// BYP+ (step 5): LNA + LNA-short cut (lna 3->1, lnaS 3->1) — deepest front-end cut
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//
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// Total gain stays monotonic: -2/-8/-17/-29/-36/-70 dB. These values are a sane starting
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// point — expect to trim them on the air against a strong close source. NB the shown dBm
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// is not gain-compensated (bk4829.c), so the reading steps down when BYP engages; that is
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// intended (it re-centres the S-meter).
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#define FOXHUNT_ATT_COUNT 6 // 4 PGA steps + 2 front-end (BYP) steps
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#define FOXHUNT_ATT_BYP0 4 // first step at which the front-end (LNA) is reduced
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#define FOXHUNT_ATT_SETTLE_MS 40 // let the RSSI detector converge to the new gain before
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// rebasing the holds/trend/history onto it (tune on air)
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static const uint16_t FOXHUNT_ATT_REG13[FOXHUNT_ATT_COUNT] = {
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0x03DF, // 0 pga7 ATT 0 dB (RX default)
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0x03DD, // 1 pga5 ATT -6 dB
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0x03DB, // 2 pga3 ATT -15 dB
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0x03D9, // 3 pga1 ATT -27 dB
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0x0379, // 4 pga1 lna3 BYP (front-end starts giving)
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0x0139, // 5 pga1 lna1 lnaS1 BYP+ (deep front-end cut)
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};
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static const uint8_t FOXHUNT_ATT_DB[FOXHUNT_ATT_BYP0] = {0, 6, 15, 27}; // PGA-step labels
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static KeyboardState kbd = {KEY_INVALID, KEY_INVALID, 0};
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static bool foxRunning;
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static uint8_t foxAudioMode;
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static uint8_t foxGraphMode; // FOXHUNT_GRAPH_BAR / _HIST, cycled by the 2 key
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static uint8_t attStep;
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static int16_t curDbm;
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static int16_t peakDbm;
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static int16_t minDbm; // lowest level held since the last reset (body-scan null)
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static int16_t trendRef;
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static int16_t trendDelta;
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static uint8_t trendTick;
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static uint8_t audioTick;
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// Signal-history ring: FOXHUNT_FillCount levels (0..13), oldest at histHead.
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static uint8_t histBuf[FOXHUNT_HIST_LEN];
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static uint8_t histHead; // index of the oldest sample (next write slot)
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static uint8_t histTick; // decimation counter (0..FOXHUNT_HIST_DECIM-1)
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static int16_t histEma; // EMA-smoothed level feed, dBm in 1/8 units (x8 fixed)
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static char str[14]; // widest write is the freq "1300.00000" (10 chars) + NUL, with slack
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// Sentinel-prefixed Morse patterns: after the leading 1 sentinel bit, each lower
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// bit is one element read MSB-first (0 = dit, 1 = dah). 0 = unsupported char.
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static const uint8_t FOXHUNT_MORSE_LETTER[26] = {
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0x05, 0x18, 0x1A, 0x0C, 0x02, 0x12, 0x0E, 0x10, 0x04, 0x17, // A..J
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0x0D, 0x14, 0x07, 0x06, 0x0F, 0x16, 0x1D, 0x0A, 0x08, 0x03, // K..T
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0x09, 0x11, 0x0B, 0x19, 0x1B, 0x1C, // U..Z
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};
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static const uint8_t FOXHUNT_MORSE_DIGIT[10] = {
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0x3F, 0x2F, 0x27, 0x23, 0x21, 0x20, 0x30, 0x38, 0x3C, 0x3E, // 0..9
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};
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// Trailing character of each fox id: MOE / MOI / MOS / MOH / MO5 (index = FOXHUNT_FOX_*).
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static const char FOXHUNT_FOX_TAIL[5] = {'E', 'I', 'S', 'H', '5'};
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// Beacon sub-mode state.
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static bool foxBeacon; // false = hunt (RX), true = beacon (TX)
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static bool beaconPhaseTx; // true = transmit this tick, false = idle gap
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static uint8_t beaconIdle; // configured silence between IDs (s)
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static uint8_t beaconIdleLeft; // seconds left in the current silence
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static uint8_t beaconIdleTick; // tick counter that clocks the idle countdown
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static char beaconMsg[17]; // CW message: 12-char call + " MOE" + NUL, e.g. "F4HWN MOE"
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static uint8_t beaconCharsSent; // characters completed in the current burst
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static uint8_t beaconTx; // TX window length (s): the ID repeats for this long
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static uint16_t beaconTxMsLeft; // ms left in the current TX window (drained as it plays)
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static uint8_t beaconTxSecShown; // whole-second value last painted on the TX line
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static uint8_t foxFox; // selected fox identifier (FOXHUNT_FOX_*)
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static char foxCall[FOXHUNT_CALLSIGN_MAX + 1]; // sanitised callsign for the CALL id
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static void FOXHUNT_EnterHunt(void);
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static void FOXHUNT_EnterBeacon(void);
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static void FOXHUNT_BeaconDraw(bool txNow, uint8_t idleLeft);
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static void FOXHUNT_UpdateBeaconProgress(uint8_t visibleChars);
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static void FOXHUNT_BuildBeaconMsg(void);
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static void FOXHUNT_SaveConfig(void);
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// Read the calibrated signal level of the current RX VFO, in dBm.
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static int16_t FOXHUNT_ReadDbm(void)
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{
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return BK4819_GetRSSI_dBm() + dBmCorrTable[gRxVfo->Band];
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}
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// Apply the selected step's BK4829 gain preset to REG_13: the PGA for the ATT steps,
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// plus the LNA/LNAs for the BYP steps. Read-modify-write masked to the known gain
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// fields (bits 0..9), so the undocumented upper bits 10..15 are preserved rather than
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// cleared. Every preset fits within 0x03FF, so only the gain fields ever change.
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static void FOXHUNT_ApplyAtt(void)
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{
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uint16_t reg = BK4819_ReadRegister(BK4819_REG_13);
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reg = (reg & ~0x03FFu) | FOXHUNT_ATT_REG13[attStep];
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BK4819_WriteRegister(BK4819_REG_13, reg);
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}
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// Set the speaker/AF state for the current audio mode.
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static void FOXHUNT_SetAudio(void)
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{
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if (foxAudioMode == FOXHUNT_AUDIO_OFF) {
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AUDIO_AudioPathOff();
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return;
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}
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// Speaker on, let the amplifier warm up, RX audio muted for now. BEEP keeps it
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// muted (only the blips are heard); STATION un-mutes per level in the loop.
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AUDIO_AudioPathOn();
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SYSTEM_DelayMs(FOXHUNT_AUDIO_SETTLE_MS);
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BK4819_SetAF(BK4819_AF_MUTE);
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}
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// Clamped linear map of dbm over the [FLOOR, CEIL] window onto [lo, hi] (hi may sit
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// below lo for an inverted mapping). Shared by the Geiger pitch and blip-rate ramps.
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static int32_t FOXHUNT_LerpDbm(int16_t dbm, int32_t lo, int32_t hi)
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{
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if (dbm <= FOXHUNT_DBM_FLOOR) return lo;
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if (dbm >= FOXHUNT_DBM_CEIL) return hi;
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return lo + ((int32_t)(dbm - FOXHUNT_DBM_FLOOR) * (hi - lo)) /
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(FOXHUNT_DBM_CEIL - FOXHUNT_DBM_FLOOR);
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}
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// Map a dBm value to a Geiger tone frequency (higher signal, higher pitch).
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static uint16_t FOXHUNT_DbmToTone(int16_t dbm)
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{
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return (uint16_t)FOXHUNT_LerpDbm(dbm, FOXHUNT_TONE_MIN, FOXHUNT_TONE_MAX);
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}
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// Ticks between two blips: fewer ticks = faster clicking as the signal rises.
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static uint8_t FOXHUNT_BlipPeriod(int16_t dbm)
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{
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return (uint8_t)FOXHUNT_LerpDbm(dbm, FOXHUNT_RATE_SLOW_TICKS, FOXHUNT_RATE_FAST_TICKS);
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}
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// Emit one short blip at the given pitch, then hand the chip back to RX.
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// The speaker path is already on and settled (see the key-1 handler); between
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// blips TurnsOffTones_TurnsOnRX mutes the AF, so the RX stays silent.
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static void FOXHUNT_Blip(uint16_t freq)
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{
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BK4819_PrepareToPlayTone(true);
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BK4819_PlayToneRaw(freq, FOXHUNT_BLIP_MS);
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BK4819_TurnsOffTones_TurnsOnRX();
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// TurnsOffTones_TurnsOnRX restores a normal RX front-end, so re-assert the
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// fixed gain and attenuator the level reading relies on.
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BK4819_SetAGC(false);
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FOXHUNT_ApplyAtt();
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}
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// Number of lit segments for a level, on the IARU S-meter scale:
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// S1..S9 are 6 dB apart, the four marks past S9 (+10..+40) are 10 dB apart.
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static uint8_t FOXHUNT_FillCount(int16_t dbm)
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{
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int16_t n;
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if (dbm < -141) return 0;
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if (dbm <= -93)
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n = 1 + (dbm + 141) / 6; // S1 (-141) .. S9 (-93) -> 1..9
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else
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n = 9 + (dbm + 93) / 10; // +10 (-83) .. +40 (-53) -> 10..13
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if (n > FOXHUNT_SEG_COUNT)
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n = FOXHUNT_SEG_COUNT;
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return (uint8_t)n;
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}
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// Build the IARU S-meter reading string (e.g. "S7" or "S9+30").
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static void FOXHUNT_BuildS(char *out, int16_t dbm)
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{
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if (dbm >= -93) {
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int16_t over = dbm - (-93);
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if (over > 40) over = 40;
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sprintf(out, "S9+%02d", over);
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} else if (dbm < -141) {
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sprintf(out, "S0");
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} else {
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sprintf(out, "S%d", (dbm + 147) / 6);
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}
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}
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// Fill a solid rectangle, column by column.
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static void FOXHUNT_FillRect(int16_t x0, int16_t y0, int16_t x1, int16_t y1, bool black)
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{
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for (int16_t x = x0; x <= x1; x++)
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UI_DrawLineBuffer(gFrameBuffer, x, y0, x, y1, black);
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}
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static void FOXHUNT_DrawBar(void)
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{
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uint8_t nCur = FOXHUNT_FillCount(curDbm);
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uint8_t i;
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// Continuous S-meter staircase (no frame): each segment is 1 px taller than
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// the previous, from S1 (1 px) to S9+40 (13 px), growing up from the base.
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for (i = 0; i < nCur; i++) {
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int16_t sx = FOXHUNT_BAR_X0 + i * FOXHUNT_SEG_PITCH;
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FOXHUNT_FillRect(sx, FOXHUNT_SEG_BOTTOM - i, sx + FOXHUNT_SEG_W - 1, FOXHUNT_SEG_BOTTOM, true);
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}
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// Solid separator line between the staircase and the scale labels below,
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// with a 1 px gap above (y38) and below (y40) it.
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UI_DrawLineBuffer(gFrameBuffer, FOXHUNT_BAR_X0, FOXHUNT_SEG_BOTTOM + 2,
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FOXHUNT_BAR_X0 + (FOXHUNT_SEG_COUNT - 1) * FOXHUNT_SEG_PITCH + FOXHUNT_SEG_W - 1,
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FOXHUNT_SEG_BOTTOM + 2, true);
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}
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// Push one EMA-smoothed reading into the signal history, decimated so the visible
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// window spans several seconds. Called once per hunt tick.
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static void FOXHUNT_HistSample(void)
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{
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// First-order IIR (EMA) on the raw dBm, in x8 fixed point so the /4 step does
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// not stall a few dB short of the input. Tau ~4 ticks (~200 ms): kills the RSSI
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// snow while staying responsive.
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histEma += ((int16_t)curDbm * 8 - histEma) / 4;
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if (++histTick < FOXHUNT_HIST_DECIM)
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return;
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histTick = 0;
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|
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histBuf[histHead] = FOXHUNT_FillCount((int16_t)(histEma / 8));
|
|
histHead = (uint8_t)((histHead + 1) % FOXHUNT_HIST_LEN);
|
|
}
|
|
|
|
// Draw the full-width signal-history graph, spectrum-style: a solid crest contour
|
|
// over a checkerboard-filled body, on the 13-level S scale. Oldest sample on the
|
|
// left, newest ("now") on the right. Replaces the staircase when the 2 key selects
|
|
// it. The level-0 line sits FOXHUNT_GRAPH_FLOOR px above the baseline so the lowest
|
|
// reading never touches the axis.
|
|
static void FOXHUNT_DrawHist(void)
|
|
{
|
|
const uint8_t floorY = FOXHUNT_GRAPH_BOT - FOXHUNT_GRAPH_FLOOR; // level-0 line
|
|
const uint8_t span = floorY - FOXHUNT_GRAPH_TOP; // px for 13 levels
|
|
|
|
// Baseline (axis) across the full width, below the level-0 line.
|
|
UI_DrawLineBuffer(gFrameBuffer, FOXHUNT_GRAPH_X0, FOXHUNT_GRAPH_BOT,
|
|
FOXHUNT_GRAPH_X0 + FOXHUNT_HIST_LEN - 1, FOXHUNT_GRAPH_BOT, true);
|
|
|
|
uint8_t prevY = 0;
|
|
uint8_t idx = histHead; // ring index, wrapped by increment (no per-column modulo)
|
|
for (uint8_t c = 0; c < FOXHUNT_HIST_LEN; c++) {
|
|
uint8_t lvl = histBuf[idx]; // oldest -> newest
|
|
if (++idx >= FOXHUNT_HIST_LEN)
|
|
idx = 0;
|
|
if (lvl > FOXHUNT_SEG_COUNT)
|
|
lvl = FOXHUNT_SEG_COUNT;
|
|
uint8_t x = FOXHUNT_GRAPH_X0 + c;
|
|
uint8_t y = (uint8_t)(floorY - (lvl * span) / FOXHUNT_SEG_COUNT); // crest top
|
|
|
|
// Checkerboard body from just under the crest down to the level-0 line
|
|
// (same pattern as the spectrum: ((x + y) & 1) == 0).
|
|
for (uint8_t yy = y + 1; yy <= floorY; yy++)
|
|
if (((x + yy) & 1) == 0)
|
|
UI_DrawLineBuffer(gFrameBuffer, x, yy, x, yy, true);
|
|
|
|
// Solid crest, bridged to the previous sample so it reads as one contour.
|
|
if (c == 0) {
|
|
UI_DrawLineBuffer(gFrameBuffer, x, y, x, y, true);
|
|
} else {
|
|
uint8_t ylo = (y < prevY) ? y : prevY;
|
|
uint8_t yhi = (y < prevY) ? prevY : y;
|
|
UI_DrawLineBuffer(gFrameBuffer, x, ylo, x, yhi, true);
|
|
}
|
|
prevY = y;
|
|
}
|
|
}
|
|
|
|
// Push the status line and the full frame buffer to the LCD, then mirror to K5Viewer.
|
|
// Factored out because the same argument-less sequence runs after every full redraw
|
|
// (hunt loop, beacon idle, beacon burst, TX-denied notice).
|
|
static void FOXHUNT_BlitScreen(void)
|
|
{
|
|
ST7565_BlitStatusLine();
|
|
ST7565_BlitFullScreen();
|
|
#ifdef ENABLE_FEAT_F4HWN_K5VIEWER
|
|
K5VIEWER_Update(false);
|
|
#endif
|
|
}
|
|
|
|
// Draw a left-anchored inverse tag in the smallest font (the PK / MN / ATT / beacon
|
|
// setting style). The box spans the text width, so the caller only gives x and the line.
|
|
static void FOXHUNT_Tag(const char *s, uint8_t x, uint8_t line)
|
|
{
|
|
GUI_DisplaySmallestInverse(s, x, line, false, true, (uint8_t)(x + strlen(s) * 4));
|
|
}
|
|
|
|
// Mirror the firmware's status-bar F indicator: when the F key is armed, a number key
|
|
// steps its setting backwards. Same glyph and column as the main screens (status.c), so
|
|
// it reads identically — Fox Hunt just renders its own status line, hence the redraw.
|
|
static void FOXHUNT_DrawFKey(void)
|
|
{
|
|
if (gWasFKeyPressed)
|
|
memcpy(gStatusLine + 69, gFontF, sizeof(gFontF));
|
|
}
|
|
|
|
// Draw a string right-aligned in the small (7 px) font: its right edge lands at rightX.
|
|
static void FOXHUNT_DrawRightSmall(const char *s, uint8_t rightX, uint8_t line)
|
|
{
|
|
UI_PrintStringSmallNormal(s, (uint8_t)(rightX - strlen(s) * 7), 0, line);
|
|
}
|
|
|
|
// Battery icon plus the optional voltage/percentage text, top-right of the status
|
|
// line — shared by the hunt and beacon screens.
|
|
static void FOXHUNT_DrawStatusBattery(void)
|
|
{
|
|
unsigned int bx = LCD_WIDTH - sizeof(BITMAP_BatteryLevel1);
|
|
UI_DrawBattery(gStatusLine + bx, gBatteryDisplayLevel, gLowBatteryBlink);
|
|
if (gSetting_battery_text != 0) {
|
|
if (gSetting_battery_text == 1) { // voltage
|
|
const uint16_t v = MIN(gBatteryVoltageAverage, 999);
|
|
sprintf(str, "%u.%02u", v / 100, v % 100);
|
|
} else { // percentage
|
|
sprintf(str, "%02u%%", BATTERY_VoltsToPercent(gBatteryVoltageAverage));
|
|
}
|
|
bx -= 7 * strlen(str);
|
|
UI_PrintStringSmallBufferNormal(str, gStatusLine + bx);
|
|
}
|
|
}
|
|
|
|
// Right-aligned frequency on the bottom line (line 6), shared by the hunt and
|
|
// beacon screens.
|
|
static void FOXHUNT_DrawFreqBR(uint32_t freq)
|
|
{
|
|
sprintf(str, "%u.%05u", freq / 100000, freq % 100000);
|
|
FOXHUNT_DrawRightSmall(str, 126, 6);
|
|
}
|
|
|
|
// Common beacon-screen frame: clear, the BEACON tag, the battery, and the TX
|
|
// frequency. Shared by the beacon draw and the TX-denied notice.
|
|
static void FOXHUNT_BeaconChrome(void)
|
|
{
|
|
UI_DisplayClear();
|
|
UI_StatusClear();
|
|
GUI_DisplaySmallestInverse("BEACON", 2, 0, true, true, 26);
|
|
FOXHUNT_DrawStatusBattery();
|
|
FOXHUNT_DrawFKey();
|
|
FOXHUNT_DrawFreqBR(gTxVfo->pTX->Frequency);
|
|
}
|
|
|
|
static void FOXHUNT_Draw(void)
|
|
{
|
|
const uint8_t *trendIcon;
|
|
char sMeter[8];
|
|
char big[8];
|
|
|
|
UI_DisplayClear();
|
|
UI_StatusClear();
|
|
|
|
// Title as an inverse label, in the scan-list tag style.
|
|
GUI_DisplaySmallestInverse("FOX HUNT", 2, 0, true, true, 34);
|
|
|
|
// Battery (icon + optional percentage/voltage) top-right, as on the main screens.
|
|
FOXHUNT_DrawStatusBattery();
|
|
FOXHUNT_DrawFKey();
|
|
|
|
// Gauge-mode icon (2 key), between the label and the audio icon: ascending
|
|
// bars for the S-meter staircase, a sine wave for the signal history. Each
|
|
// bitmap has its own width, so copy its own size.
|
|
if (foxGraphMode == FOXHUNT_GRAPH_HIST)
|
|
memcpy(gStatusLine + 38, BITMAP_FoxHuntGraph, sizeof(BITMAP_FoxHuntGraph));
|
|
else
|
|
memcpy(gStatusLine + 38, BITMAP_FoxHuntBars, sizeof(BITMAP_FoxHuntBars));
|
|
|
|
// Audio state icon between the label and the battery: speaker for beep,
|
|
// headphones for station audio, nothing when silent.
|
|
if (foxAudioMode == FOXHUNT_AUDIO_BEEP)
|
|
memcpy(gStatusLine + 55, BITMAP_FoxHuntSignal, sizeof(BITMAP_FoxHuntSignal));
|
|
else if (foxAudioMode == FOXHUNT_AUDIO_STATION)
|
|
memcpy(gStatusLine + 55, BITMAP_FoxHuntSpeaker, sizeof(BITMAP_FoxHuntSpeaker));
|
|
|
|
// Hero level, floating: the big number renders naturally (left-anchored) and
|
|
// the "dBm" unit follows right after it, so the block flows with the width.
|
|
sprintf(big, "%d", curDbm);
|
|
UI_DisplayFrequency(big, 2, 0, false);
|
|
UI_PrintStringSmallNormal("dBm", (uint8_t)(strlen(big) * 13 + 4), 0, 1);
|
|
|
|
// Trend as an arrow on line 0 (up = nearer, down = farther, = stable),
|
|
// right-anchored; the signed delta since ~1 s ago sits on line 1.
|
|
trendIcon = (trendDelta > 0) ? BITMAP_FoxHuntUp
|
|
: (trendDelta < 0) ? BITMAP_FoxHuntDown
|
|
: BITMAP_FoxHuntFlat;
|
|
memcpy(gFrameBuffer[0] + (126 - 11), trendIcon, 11);
|
|
// Signed delta on line 1 — only when it actually moved (no "00 dBm" when
|
|
// stable). "dBm" right-anchored to x126, the value 2 px to its left (a real
|
|
// space would be 7 px), so they are drawn as two separate strings.
|
|
if (trendDelta != 0) {
|
|
sprintf(str, "%+03d", trendDelta); // sign + 2 digits, e.g. "+05" / "-12"
|
|
UI_PrintStringSmallNormal("dBm", 127 - 3 * 7, 0, 1);
|
|
FOXHUNT_DrawRightSmall(str, 127 - 3 * 7 - 2, 1); // value left of "dBm"
|
|
}
|
|
|
|
// Context line: peak hold (left), min hold (centre) and S-meter (right) as small
|
|
// inverse labels (scan-list tag style, 4 px/char). PK and MN bracket a body-scan
|
|
// rotation — the deeper MN sits below PK, the sharper the null.
|
|
sprintf(str, "PK %d", peakDbm);
|
|
FOXHUNT_Tag(str, 4, 2);
|
|
sprintf(str, "MN %d", minDbm);
|
|
FOXHUNT_Tag(str, (uint8_t)((LCD_WIDTH - strlen(str) * 4) / 2), 2);
|
|
FOXHUNT_BuildS(sMeter, curDbm);
|
|
GUI_DisplaySmallestInverse(sMeter, 126 - strlen(sMeter) * 4, 2, false, true, 125);
|
|
|
|
// Main gauge, toggled by the 2 key: the S-meter staircase, or a full-width
|
|
// scrolling history of the level over the last seconds (same 13-level S scale).
|
|
if (foxGraphMode == FOXHUNT_GRAPH_HIST) {
|
|
FOXHUNT_DrawHist();
|
|
} else {
|
|
// Segmented S-meter staircase.
|
|
FOXHUNT_DrawBar();
|
|
|
|
// Scale under the gauge, aligned with segments 1 / 5 / 9 / 13.
|
|
GUI_DisplaySmallest("S1", 6, 41, false, true);
|
|
GUI_DisplaySmallest("S5", 42, 41, false, true);
|
|
GUI_DisplaySmallest("S9", 78, 41, false, true);
|
|
GUI_DisplaySmallest("+40", 110, 41, false, true);
|
|
}
|
|
|
|
// Front-end ladder as an inverse label (left), tuned frequency (right). The PGA
|
|
// steps show "ATT xxdB"; the two front-end steps show "BYP" / "BYP+".
|
|
if (attStep < FOXHUNT_ATT_BYP0)
|
|
sprintf(str, "ATT %ddB", FOXHUNT_ATT_DB[attStep]);
|
|
else
|
|
strcpy(str, (attStep == FOXHUNT_ATT_BYP0) ? "BYP" : "BYP+");
|
|
FOXHUNT_Tag(str, 4, 6);
|
|
FOXHUNT_DrawFreqBR(gRxVfo->pRX->Frequency);
|
|
}
|
|
|
|
// One key = one setting, each press cycling to the next value and wrapping — the same
|
|
// scheme for the hunt gauges and the beacon settings, so there are no navigation arrows
|
|
// to learn. dir is +1 for a plain press, -1 when the F key armed a reverse step. The
|
|
// beacon values are read where they take effect (TX window at the burst start, idle at
|
|
// the burst end, fox at the next repeat), so cycling any of them is safe at any time.
|
|
|
|
// Wrap a 0..count-1 index one step forward (dir > 0) or backward, both ways round.
|
|
static uint8_t FOXHUNT_WrapStep(uint8_t v, uint8_t count, int8_t dir)
|
|
{
|
|
return (uint8_t)((v + (dir > 0 ? 1u : (unsigned)(count - 1u))) % count);
|
|
}
|
|
|
|
// Step a lo..hi value by step, wrapping lo<->hi at the ends.
|
|
static uint8_t FOXHUNT_RangeStep(uint8_t v, uint8_t lo, uint8_t hi, uint8_t step, int8_t dir)
|
|
{
|
|
if (dir > 0)
|
|
return (v >= hi) ? lo : (uint8_t)(v + step);
|
|
return (v <= lo) ? hi : (uint8_t)(v - step);
|
|
}
|
|
|
|
// Rebase the level-tracking state (peak/min hold, trend reference and the signal
|
|
// history) onto a fresh reading. Used at hunt entry and after any front-end gain
|
|
// change: the shown dBm is not gain-compensated, so without this a step change would
|
|
// leave a stale peak, an artificial min, a one-shot false trend spike and a cliff in
|
|
// the sparkline.
|
|
static void FOXHUNT_RebaseMeasurements(void)
|
|
{
|
|
curDbm = FOXHUNT_ReadDbm();
|
|
peakDbm = curDbm;
|
|
minDbm = curDbm;
|
|
trendRef = curDbm;
|
|
trendDelta = 0;
|
|
trendTick = 0;
|
|
|
|
// Prime the signal history flat at the current level so the sparkline scrolls in
|
|
// from a sensible baseline instead of showing the gain step as a cliff.
|
|
{
|
|
uint8_t lvl = FOXHUNT_FillCount(curDbm);
|
|
for (uint8_t i = 0; i < FOXHUNT_HIST_LEN; i++)
|
|
histBuf[i] = lvl;
|
|
}
|
|
histHead = 0;
|
|
histTick = 0;
|
|
histEma = (int16_t)(curDbm * 8);
|
|
}
|
|
|
|
// Front-end ladder: ATT 0 -> -6 -> -15 -> -27 dB, then BYP -> BYP+ (F reverses).
|
|
static void FOXHUNT_AttCycle(int8_t dir)
|
|
{
|
|
attStep = FOXHUNT_WrapStep(attStep, FOXHUNT_ATT_COUNT, dir);
|
|
FOXHUNT_ApplyAtt();
|
|
|
|
// Wait for the RSSI to settle to the new gain, THEN rebase the holds/trend/history.
|
|
// Reading straight away would latch the old-gain level, and as the RSSI converges
|
|
// over the next ticks the very artifacts the rebase avoids (stuck peak, false trend
|
|
// spike, sparkline cliff) would reappear.
|
|
SYSTEM_DelayMs(FOXHUNT_ATT_SETTLE_MS);
|
|
FOXHUNT_RebaseMeasurements();
|
|
}
|
|
|
|
// Fox identifier: MOE -> MOI -> MOS -> MOH -> MO5 -> MO -> CALL (F reverses).
|
|
static void FOXHUNT_FoxCycle(int8_t dir)
|
|
{
|
|
foxFox = FOXHUNT_WrapStep(foxFox, FOXHUNT_FOX_COUNT, dir);
|
|
}
|
|
|
|
// TX window: 5..60 s (F reverses).
|
|
static void FOXHUNT_TxCycle(int8_t dir)
|
|
{
|
|
beaconTx = FOXHUNT_RangeStep(beaconTx, FOXHUNT_BEACON_TX_MIN, FOXHUNT_BEACON_TX_MAX,
|
|
FOXHUNT_BEACON_TX_STEP, dir);
|
|
}
|
|
|
|
// Idle gap: 5..240 s (F reverses).
|
|
static void FOXHUNT_IdleCycle(int8_t dir)
|
|
{
|
|
beaconIdle = FOXHUNT_RangeStep(beaconIdle, FOXHUNT_BEACON_IDLE_MIN, FOXHUNT_BEACON_IDLE_MAX,
|
|
FOXHUNT_BEACON_IDLE_STEP, dir);
|
|
}
|
|
|
|
// Apply a beacon number key in the given direction; returns true when it changed a
|
|
// setting so the caller can refresh. Keys follow the on-screen layout: 1 = TX (top-left),
|
|
// 2 = IDLE (below it), 3 = FOX (right). Shared by both beacon phases.
|
|
static bool FOXHUNT_BeaconKey(KEY_Code_t key, int8_t dir)
|
|
{
|
|
switch (key) {
|
|
case KEY_1: FOXHUNT_TxCycle(dir); return true;
|
|
case KEY_2: FOXHUNT_IdleCycle(dir); return true;
|
|
case KEY_3: FOXHUNT_FoxCycle(dir); return true;
|
|
default: return false;
|
|
}
|
|
}
|
|
|
|
// Sleep one UI tick, but in 10 ms slices stepping the backlight fade each slice,
|
|
// so the fade rate matches the main screen (BACKLIGHT_Update runs every 10 ms in
|
|
// APP_TimeSlice10ms; delaying the whole 50 ms tick at once made it ~5x slower).
|
|
static void FOXHUNT_TickDelay(void)
|
|
{
|
|
for (uint8_t i = 0; i < FOXHUNT_TICK_MS / 10; i++) {
|
|
SYSTEM_DelayMs(10);
|
|
BACKLIGHT_Update();
|
|
}
|
|
}
|
|
|
|
// Idle housekeeping the foreground scheduler normally does but this modal loop
|
|
// bypasses: backlight timeout (BLTime) and, while hunting, the sleep auto power
|
|
// off. Cadenced on the 500 ms system tick.
|
|
static void FOXHUNT_IdleHousekeeping(void)
|
|
{
|
|
if (!gNextTimeslice_500ms)
|
|
return;
|
|
gNextTimeslice_500ms = false;
|
|
|
|
// This modal loop bypasses the foreground scheduler that normally samples the
|
|
// battery, which would otherwise freeze gBatteryDisplayLevel for the whole
|
|
// session. Refresh it here — every caller of this function has the PA off (the
|
|
// hunt loop, and the beacon idle gap, never a burst), so the reading is not
|
|
// pulled down by TX load — keeping the status icon live and letting the
|
|
// beacon's battery gate react to a pack draining under a long run.
|
|
BOARD_ADC_GetBatteryInfo(&gBatteryVoltages[gBatteryVoltageIndex++], &gBatteryCurrent);
|
|
if (gBatteryVoltageIndex > 3)
|
|
gBatteryVoltageIndex = 0;
|
|
BATTERY_GetReadings(false);
|
|
|
|
// Persist any changed setting within ~0.5 s, so it survives a power-off (not
|
|
// just a clean EXIT). No-op when nothing changed.
|
|
FOXHUNT_SaveConfig();
|
|
|
|
// Backlight timeout: switch it off when the countdown expires (both modes).
|
|
if (gBacklightCountdown_500ms > 0
|
|
&& gEeprom.BACKLIGHT_TIME < 61
|
|
&& --gBacklightCountdown_500ms == 0)
|
|
BACKLIGHT_TurnOff();
|
|
|
|
#ifdef ENABLE_FEAT_F4HWN_SLEEP
|
|
// Auto power-off: only while hunting (a running beacon must stay alive). Hand
|
|
// back to the main loop just before expiry so it performs the actual sleep.
|
|
if (!foxBeacon && gSetting_set_off != 0 && gSleepModeCountdown_500ms > 0) {
|
|
if (gSleepModeCountdown_500ms > 1)
|
|
gSleepModeCountdown_500ms--;
|
|
else
|
|
foxRunning = false;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
static void FOXHUNT_HandleKeys(void)
|
|
{
|
|
kbd.prev = kbd.current;
|
|
kbd.current = KEYBOARD_GetKey();
|
|
|
|
// Act only on the rising edge of a new key.
|
|
if (kbd.current == KEY_INVALID || kbd.current == kbd.prev)
|
|
return;
|
|
|
|
BACKLIGHT_TurnOn(); // any keypress wakes the screen and re-arms the timers
|
|
|
|
if (kbd.current == KEY_F) { // arm / disarm a reverse step for the next number key
|
|
gWasFKeyPressed = !gWasFKeyPressed;
|
|
return;
|
|
}
|
|
const int8_t dir = gWasFKeyPressed ? -1 : 1;
|
|
|
|
switch (kbd.current) {
|
|
case KEY_EXIT:
|
|
foxRunning = false;
|
|
break;
|
|
case KEY_1:
|
|
// Toggle the main gauge: S-meter staircase <-> full-width history.
|
|
foxGraphMode ^= 1;
|
|
break;
|
|
case KEY_2:
|
|
// Cycle the audio: silent -> Geiger beep -> station audio (F reverses).
|
|
foxAudioMode = FOXHUNT_WrapStep(foxAudioMode, 3, dir);
|
|
FOXHUNT_SetAudio();
|
|
if (foxAudioMode == FOXHUNT_AUDIO_BEEP)
|
|
audioTick = FOXHUNT_RATE_SLOW_TICKS; // blip promptly
|
|
break;
|
|
case KEY_3:
|
|
// Cycle the front-end ladder (ATT 0/-6/-15/-27 dB, then BYP/BYP+; F reverses).
|
|
FOXHUNT_AttCycle(dir);
|
|
break;
|
|
case KEY_MENU:
|
|
// Reset the peak / min hold and the trend reference (before each body scan).
|
|
peakDbm = curDbm;
|
|
minDbm = curDbm;
|
|
trendRef = curDbm;
|
|
break;
|
|
case KEY_SIDE1:
|
|
case KEY_SIDE2:
|
|
// Same shortcut that opened Fox Hunt now toggles to the beacon.
|
|
FOXHUNT_EnterBeacon();
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
gWasFKeyPressed = false; // any non-F key consumes (or cancels) the reverse arm
|
|
}
|
|
|
|
// (Re)enter the hunt (RX) sub-mode: fixed front-end gain, attenuator and audio mode
|
|
// re-applied, peak/trend reset. Called at start-up and when leaving the beacon. The
|
|
// audio mode is a hunt setting, so it is (re)applied here, not forced off — it must
|
|
// survive a trip through the beacon.
|
|
static void FOXHUNT_EnterHunt(void)
|
|
{
|
|
foxBeacon = false;
|
|
|
|
BK4819_SetAGC(false);
|
|
FOXHUNT_ApplyAtt();
|
|
FOXHUNT_SetAudio(); // (re)apply the current audio mode: off / beep / station
|
|
|
|
// Let the RSSI settle to the gain just applied, then reset the peak/min hold, trend
|
|
// reference and signal history onto a fresh reading (also re-primes the sparkline on
|
|
// return from the beacon). Same settle as FOXHUNT_AttCycle: without it a restored
|
|
// BYP/BYP+ step at start-up or on beacon return would rebase onto the old-gain reading.
|
|
// SetAudio already waits when audio is on, but not in the default audio-off case.
|
|
SYSTEM_DelayMs(FOXHUNT_ATT_SETTLE_MS);
|
|
FOXHUNT_RebaseMeasurements();
|
|
audioTick = (foxAudioMode == FOXHUNT_AUDIO_BEEP) ? FOXHUNT_RATE_SLOW_TICKS : 0;
|
|
}
|
|
|
|
// Evaluate the TX gates for the beacon's TX VFO in the same precedence order as
|
|
// RADIO_PrepareTX (F LOCK / per-VFO TX LOCK, then battery, then modulation) and
|
|
// return the matching VfoState_t. VFO_STATE_NORMAL means the burst is clear to
|
|
// transmit. Reusing the radio's own states keeps the on-screen wording identical
|
|
// to the main display (VfoStateStr).
|
|
static VfoState_t FOXHUNT_TxState(void)
|
|
{
|
|
if (TX_freq_check(gTxVfo->pTX->Frequency) != 0 && gTxVfo->TX_LOCK)
|
|
return VFO_STATE_TX_DISABLE;
|
|
if (gBatteryDisplayLevel == 0)
|
|
return VFO_STATE_BAT_LOW;
|
|
if (gBatteryDisplayLevel > 6)
|
|
return VFO_STATE_VOLTAGE_HIGH;
|
|
#ifndef ENABLE_TX_WHEN_AM
|
|
if (gTxVfo->Modulation != MODULATION_FM)
|
|
return VFO_STATE_TX_DISABLE;
|
|
#endif
|
|
return VFO_STATE_NORMAL;
|
|
}
|
|
|
|
// Refuse feedback shown when a burst is barred: reuse the beacon screen layout and
|
|
// the radio's own state label (VfoStateStr, e.g. "TX DISABLE" / "BAT LOW" / "VOLT
|
|
// HIGH"), same font as the main screen, for a beat; the caller then falls back to
|
|
// the hunt. The RX front-end and audio path are left untouched so the hunt keeps
|
|
// reading cleanly.
|
|
static void FOXHUNT_TxDeniedNotice(VfoState_t state)
|
|
{
|
|
// Frame (clear + BEACON tag + battery + barred TX frequency).
|
|
FOXHUNT_BeaconChrome();
|
|
|
|
// Centred, gFontBig — same wording and font as the main screen's VFO state,
|
|
// on line 1 so it sits exactly where the beacon's "TX" / "IDLE" text appears.
|
|
UI_PrintString(VfoStateStr[state], 0, 127, 1, 8);
|
|
|
|
FOXHUNT_BlitScreen();
|
|
|
|
// Hold the notice ~1 s while keeping the backlight fade alive.
|
|
for (uint8_t i = 0; i < 20; i++)
|
|
FOXHUNT_TickDelay();
|
|
}
|
|
|
|
// Enter the beacon (fox) sub-mode. The TX gates are enforced per burst in
|
|
// FOXHUNT_BeaconTick (which runs immediately), so entry just arms the state.
|
|
static void FOXHUNT_EnterBeacon(void)
|
|
{
|
|
foxBeacon = true;
|
|
AUDIO_AudioPathOff(); // no RX audio while beaconing; foxAudioMode kept for the hunt
|
|
gCurrentVfo = gTxVfo; // the VFO RADIO_SetTxParameters keys up
|
|
beaconPhaseTx = true;
|
|
}
|
|
|
|
// Paint the TX line (line 0): "TX" left, remaining-window seconds right. Kept separate
|
|
// so FOXHUNT_TxDelay can refresh just this line each second, live, without redrawing the
|
|
// whole screen mid-Morse. Records the value shown so the caller only repaints on change.
|
|
static void FOXHUNT_DrawTxSeconds(void)
|
|
{
|
|
const uint8_t sec = (uint8_t)((beaconTxMsLeft + 999u) / 1000u);
|
|
memset(gFrameBuffer[0], 0, sizeof(gFrameBuffer[0]));
|
|
UI_PrintStringSmallNormal("TX", 1, 0, 0);
|
|
sprintf(str, "%02us", sec);
|
|
FOXHUNT_DrawRightSmall(str, 127, 0);
|
|
beaconTxSecShown = sec;
|
|
}
|
|
|
|
// Sleep in short slices while watching the keypad, so a burst stays interactive and the
|
|
// TX-window countdown (beaconTxMsLeft) drains in real time. EXIT leaves Fox Hunt and a
|
|
// side key aborts back to the hunt (both return true). The 1/2/3 keys edit the beacon
|
|
// settings live, exactly as in the idle phase: the TX window (1) and idle gap (2) take
|
|
// effect at the upcoming window / gap, and a FOX change (3) at the next repeat (the
|
|
// message is rebuilt there, never under the running loop).
|
|
static bool FOXHUNT_TxDelay(uint16_t ms)
|
|
{
|
|
while (ms) {
|
|
const uint16_t slice = (ms > 10) ? 10 : ms; // 10 ms: same fade rate as idle
|
|
SYSTEM_DelayMs(slice);
|
|
ms -= slice;
|
|
beaconTxMsLeft = (beaconTxMsLeft > slice) ? (beaconTxMsLeft - slice) : 0;
|
|
BACKLIGHT_Update(); // keep any brightness fade moving in TX
|
|
|
|
// Tick the remaining-window seconds live: repaint only line 0 when the whole
|
|
// second changes, so the countdown drains smoothly through a long ID instead of
|
|
// jumping once per repeat (a one-line blit barely dents the Morse timing).
|
|
if ((uint8_t)((beaconTxMsLeft + 999u) / 1000u) != beaconTxSecShown) {
|
|
FOXHUNT_DrawTxSeconds();
|
|
ST7565_BlitLine(0);
|
|
}
|
|
|
|
kbd.prev = kbd.current;
|
|
kbd.current = KEYBOARD_GetKey();
|
|
if (kbd.current == KEY_INVALID || kbd.current == kbd.prev)
|
|
continue; // rising edge only
|
|
|
|
BACKLIGHT_TurnOn(); // keep the screen awake during TX
|
|
|
|
if (kbd.current == KEY_EXIT) {
|
|
foxRunning = false; // abort the burst and leave Fox Hunt
|
|
return true;
|
|
}
|
|
if (kbd.current == KEY_SIDE1 || kbd.current == KEY_SIDE2) {
|
|
foxBeacon = false; // abort the burst and switch back to hunt
|
|
return true;
|
|
}
|
|
if (kbd.current == KEY_MENU) {
|
|
// Cut the transmission short but stay in Beacon: aborting the burst without
|
|
// clearing foxBeacon/foxRunning drops the loop straight into a fresh idle
|
|
// gap of the configured IDLE length.
|
|
return true;
|
|
}
|
|
if (kbd.current == KEY_F) { // arm / disarm the reverse step
|
|
gWasFKeyPressed = !gWasFKeyPressed;
|
|
FOXHUNT_BeaconDraw(true, 0); // reflect the F indicator in the status line
|
|
FOXHUNT_BlitScreen();
|
|
continue;
|
|
}
|
|
if (FOXHUNT_BeaconKey(kbd.current, gWasFKeyPressed ? -1 : 1)) {
|
|
gWasFKeyPressed = false; // consumed; also clears the F indicator
|
|
FOXHUNT_BeaconDraw(true, 0); // show the new value immediately
|
|
FOXHUNT_BlitScreen();
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Morse pattern of one character (letters, digits, '/'); 0 = space / unsupported.
|
|
static uint8_t FOXHUNT_MorseByte(char c)
|
|
{
|
|
if (c >= 'a' && c <= 'z') c -= 32;
|
|
if (c >= 'A' && c <= 'Z') return FOXHUNT_MORSE_LETTER[c - 'A'];
|
|
if (c >= '0' && c <= '9') return FOXHUNT_MORSE_DIGIT[c - '0'];
|
|
if (c == '/') return 0x32; // -..-.
|
|
return 0;
|
|
}
|
|
|
|
// Send one character as modulated CW: key the running TX tone on per element,
|
|
// muting the modulation (carrier stays up) between them. Returns true if aborted.
|
|
static bool FOXHUNT_MorseChar(char c, uint8_t visibleChars)
|
|
{
|
|
uint8_t code = FOXHUNT_MorseByte(c);
|
|
|
|
if (code == 0) { // space / unknown -> word gap
|
|
if (FOXHUNT_TxDelay(FOXHUNT_MORSE_UNIT_MS * 4))
|
|
return true;
|
|
FOXHUNT_UpdateBeaconProgress(visibleChars);
|
|
return false;
|
|
}
|
|
|
|
uint8_t bit = 0x80;
|
|
while (!(code & bit)) bit >>= 1; // skip to the sentinel bit
|
|
for (bit >>= 1; bit; bit >>= 1) { // then walk the elements, MSB first
|
|
const uint16_t on = (code & bit) ? (FOXHUNT_MORSE_UNIT_MS * 3) // dah
|
|
: FOXHUNT_MORSE_UNIT_MS; // dit
|
|
BK4819_ExitTxMute();
|
|
if (FOXHUNT_TxDelay(on)) { BK4819_EnterTxMute(); return true; }
|
|
BK4819_EnterTxMute();
|
|
if (FOXHUNT_TxDelay(FOXHUNT_MORSE_UNIT_MS)) return true; // intra gap
|
|
}
|
|
|
|
// Reveal the character once all its CW elements have been transmitted. The
|
|
// remaining two units keep the completed character visible during the rest
|
|
// of the standard three-unit inter-character gap.
|
|
FOXHUNT_UpdateBeaconProgress(visibleChars);
|
|
|
|
// Inter-character gap is 3 units; one already elapsed after the last element.
|
|
return FOXHUNT_TxDelay(FOXHUNT_MORSE_UNIT_MS * 2);
|
|
}
|
|
|
|
// One beacon cycle: repeat the CW identification for the whole TX window, at the TX
|
|
// VFO's configured power. Carrier stays up across the window; the tone is keyed per
|
|
// Morse element (MCW), and the ID is re-sent until the window drains — a real ARDF fox
|
|
// keys up for a fixed slot rather than sending a single one-shot.
|
|
static void FOXHUNT_BeaconTransmit(void)
|
|
{
|
|
RADIO_SetTxParameters(); // key up: carrier + PA
|
|
|
|
// Prime the tone generator, then start silent before the first element.
|
|
BK4819_TransmitTone(false, FOXHUNT_BEACON_TONE_HZ);
|
|
BK4819_EnterTxMute();
|
|
|
|
beaconTxMsLeft = (uint16_t)beaconTx * 1000u; // drained inside FOXHUNT_TxDelay
|
|
|
|
bool stop = false;
|
|
while (!stop && beaconTxMsLeft > 0) {
|
|
// Rebuild from the current fox at the repeat boundary — this is where a FOX
|
|
// change made live (during the previous repeat or the idle gap) takes effect,
|
|
// never mid-message.
|
|
FOXHUNT_BuildBeaconMsg();
|
|
|
|
// Redraw once per repeat (remaining-window countdown + reset progress), in the
|
|
// muted gap so it never stretches a Morse element. Local LCD only here — the
|
|
// K5Viewer frame is pushed after the ID (below), when the text is complete.
|
|
beaconCharsSent = 0;
|
|
FOXHUNT_BeaconDraw(true, 0);
|
|
ST7565_BlitStatusLine();
|
|
ST7565_BlitFullScreen();
|
|
|
|
for (uint8_t i = 0; !stop && beaconMsg[i]; i++) {
|
|
stop = FOXHUNT_MorseChar(beaconMsg[i], i + 1u);
|
|
|
|
#if defined(ENABLE_UART) || defined(ENABLE_USB)
|
|
// Service maintenance commands in the muted inter-character gap.
|
|
UART_ServiceCommands();
|
|
#endif
|
|
}
|
|
|
|
#ifdef ENABLE_FEAT_F4HWN_K5VIEWER
|
|
// Service the K5Viewer link in the muted gap (never during a keyed element, so
|
|
// the Morse timing stays intact): ParseInput refills the keep-alive that Update
|
|
// drains — without it the link dies within ~15 repeats over a long TX window —
|
|
// and Update then mirrors the now-complete ID frame plus the live seconds.
|
|
if (!stop) {
|
|
K5VIEWER_ParseInput();
|
|
K5VIEWER_Update(false);
|
|
}
|
|
#endif
|
|
|
|
// Word gap before the next repeat, only while the window still has room.
|
|
if (!stop && beaconTxMsLeft > 0)
|
|
stop = FOXHUNT_TxDelay(FOXHUNT_MORSE_UNIT_MS * 7);
|
|
}
|
|
|
|
// Key down: mute, drop the PA and restore RX for the silent gap. If the burst
|
|
// was interrupted, FOXHUNT_TxDelay already set the target mode (quit or hunt).
|
|
BK4819_EnterTxMute();
|
|
BK4819_ToggleGpioOut(BK4819_GPIO1_PIN29_PA_ENABLE, false);
|
|
RADIO_SetupRegisters(true);
|
|
}
|
|
|
|
// Build the CW message from the current fox id: "<call> MOE" for CALL (falls back to a
|
|
// bare MOE when no callsign is set), otherwise the pure "MOx" of the chosen fox.
|
|
static void FOXHUNT_BuildBeaconMsg(void)
|
|
{
|
|
if (foxFox == FOXHUNT_FOX_CALL) {
|
|
if (foxCall[0] != '\0')
|
|
sprintf(beaconMsg, "%s MOE", foxCall);
|
|
else
|
|
strcpy(beaconMsg, "MOE");
|
|
} else if (foxFox == FOXHUNT_FOX_MO) {
|
|
strcpy(beaconMsg, "MO"); // ARDF finish/home beacon
|
|
} else {
|
|
sprintf(beaconMsg, "MO%c", FOXHUNT_FOX_TAIL[foxFox]);
|
|
}
|
|
}
|
|
|
|
// Short label for the FOX setting: "FOX CALL" or "FOX MOx".
|
|
static void FOXHUNT_FoxLabel(char *out)
|
|
{
|
|
if (foxFox == FOXHUNT_FOX_CALL)
|
|
strcpy(out, "FOX CALL");
|
|
else if (foxFox == FOXHUNT_FOX_MO)
|
|
strcpy(out, "FOX MO");
|
|
else
|
|
sprintf(out, "FOX MO%c", FOXHUNT_FOX_TAIL[foxFox]);
|
|
}
|
|
|
|
// Draw the transmitted portion of the message. A CALL id splits on the space: callsign
|
|
// on the upper line, "MOx" below. A pure fox (no space) is centred on one line. Each
|
|
// revealed prefix keeps the anchor of the full string, so characters appear in place
|
|
// instead of re-centring as they arrive.
|
|
static void FOXHUNT_DrawBeaconMessage(uint8_t visibleChars)
|
|
{
|
|
const char *separator = strchr(beaconMsg, ' ');
|
|
|
|
if (separator == NULL) { // pure fox id (MOE..MO5)
|
|
const size_t idLen = strlen(beaconMsg);
|
|
const size_t visLen = MIN((size_t)visibleChars, idLen);
|
|
char id[sizeof(beaconMsg)];
|
|
memcpy(id, beaconMsg, visLen);
|
|
id[visLen] = '\0';
|
|
UI_PrintString(id, (uint8_t)((LCD_WIDTH - idLen * 8u) / 2u), 0,
|
|
FOXHUNT_MSG_LINE_ONE, 8);
|
|
return;
|
|
}
|
|
|
|
const size_t callLen = (size_t)(separator - beaconMsg);
|
|
const size_t visibleCallLen = MIN((size_t)visibleChars, callLen);
|
|
char call[FOXHUNT_CALLSIGN_MAX + 1];
|
|
memcpy(call, beaconMsg, visibleCallLen);
|
|
call[visibleCallLen] = '\0';
|
|
UI_PrintString(call, (uint8_t)((LCD_WIDTH - callLen * 8u) / 2u), 0,
|
|
FOXHUNT_MSG_LINE_CALL, 8);
|
|
|
|
if ((size_t)visibleChars > callLen + 1u) {
|
|
const char *id = separator + 1;
|
|
const size_t idLen = strlen(id);
|
|
const size_t visibleIdLen = MIN((size_t)visibleChars - callLen - 1u, idLen);
|
|
char idbuf[8];
|
|
memcpy(idbuf, id, visibleIdLen);
|
|
idbuf[visibleIdLen] = '\0';
|
|
UI_PrintString(idbuf, (uint8_t)((LCD_WIDTH - idLen * 8u) / 2u), 0,
|
|
FOXHUNT_MSG_LINE_ID, 8);
|
|
}
|
|
}
|
|
|
|
// Update only the line pair whose latest character changed so screen refreshes do not
|
|
// lengthen the Morse timing more than necessary.
|
|
static void FOXHUNT_UpdateBeaconProgress(uint8_t visibleChars)
|
|
{
|
|
const char *separator = strchr(beaconMsg, ' ');
|
|
uint8_t topLine;
|
|
|
|
beaconCharsSent = visibleChars;
|
|
|
|
if (separator == NULL) { // pure fox id
|
|
topLine = FOXHUNT_MSG_LINE_ONE;
|
|
} else {
|
|
const size_t callLen = (size_t)(separator - beaconMsg);
|
|
if ((size_t)visibleChars == callLen + 1u) // the space: nothing new to show
|
|
return;
|
|
topLine = ((size_t)visibleChars <= callLen)
|
|
? FOXHUNT_MSG_LINE_CALL
|
|
: FOXHUNT_MSG_LINE_ID;
|
|
}
|
|
|
|
memset(gFrameBuffer[topLine], 0, sizeof(gFrameBuffer[topLine]));
|
|
memset(gFrameBuffer[topLine + 1], 0, sizeof(gFrameBuffer[topLine + 1]));
|
|
FOXHUNT_DrawBeaconMessage(beaconCharsSent);
|
|
ST7565_BlitLine(topLine);
|
|
ST7565_BlitLine(topLine + 1);
|
|
}
|
|
|
|
static void FOXHUNT_BeaconDraw(bool txNow, uint8_t idleLeft)
|
|
{
|
|
// Frame (clear + BEACON tag + battery + TX frequency on the bottom-right).
|
|
FOXHUNT_BeaconChrome();
|
|
|
|
if (txNow) {
|
|
// On-air icon in the status bar (only while the carrier is up), then the top
|
|
// line "TX" + remaining window seconds (refreshed live in FOXHUNT_TxDelay).
|
|
memcpy(gStatusLine + 48, BITMAP_FoxHuntTx, sizeof(BITMAP_FoxHuntTx));
|
|
FOXHUNT_DrawTxSeconds();
|
|
FOXHUNT_DrawBeaconMessage(beaconCharsSent);
|
|
} else {
|
|
// Silence phase: big "IDLE" with the countdown to the next burst below it.
|
|
UI_PrintString("IDLE", 0, 127, 1, 10);
|
|
sprintf(str, "%02us", idleLeft);
|
|
UI_PrintString(str, 0, 127, 3, 10);
|
|
}
|
|
|
|
// Bottom-left column: 1 = TX window over 2 = IDLE gap. Bottom-right: 3 = FOX id over
|
|
// the freq (drawn by FOXHUNT_BeaconChrome). All three are inverse tags; each has its
|
|
// own number key, editable in either phase, so there is no cursor to show.
|
|
sprintf(str, "TX %us", beaconTx);
|
|
FOXHUNT_Tag(str, 4, 5);
|
|
sprintf(str, "IDLE %us", beaconIdle);
|
|
FOXHUNT_Tag(str, 4, 6);
|
|
|
|
FOXHUNT_FoxLabel(str);
|
|
FOXHUNT_Tag(str, (uint8_t)(125 - strlen(str) * 4), 5);
|
|
}
|
|
|
|
static void FOXHUNT_BeaconKeys(void)
|
|
{
|
|
kbd.prev = kbd.current;
|
|
kbd.current = KEYBOARD_GetKey();
|
|
|
|
if (kbd.current == KEY_INVALID || kbd.current == kbd.prev)
|
|
return;
|
|
|
|
BACKLIGHT_TurnOn(); // any keypress wakes the screen and re-arms the timers
|
|
|
|
if (kbd.current == KEY_F) { // arm / disarm a reverse step for the next number key
|
|
gWasFKeyPressed = !gWasFKeyPressed;
|
|
return;
|
|
}
|
|
|
|
switch (kbd.current) {
|
|
case KEY_EXIT:
|
|
foxRunning = false; // leave Fox Hunt entirely
|
|
break;
|
|
case KEY_SIDE1:
|
|
case KEY_SIDE2:
|
|
foxBeacon = false; // toggle back to the hunt
|
|
break;
|
|
case KEY_MENU:
|
|
// Restart a full idle interval now (the TX-phase M drops here too).
|
|
beaconIdleLeft = beaconIdle;
|
|
beaconIdleTick = 0;
|
|
break;
|
|
default:
|
|
// 1 = TX window, 2 = idle gap, 3 = fox (F reverses); same keys as during TX.
|
|
FOXHUNT_BeaconKey(kbd.current, gWasFKeyPressed ? -1 : 1);
|
|
break;
|
|
}
|
|
|
|
gWasFKeyPressed = false; // any non-F key consumes (or cancels) the reverse arm
|
|
}
|
|
|
|
// One iteration of the beacon loop: either transmit a burst, or count down the
|
|
// editable silent gap. Kept off the hot RX path so hunt stays lightweight.
|
|
static void FOXHUNT_BeaconTick(void)
|
|
{
|
|
if (beaconPhaseTx) {
|
|
// Re-assert the TX gates before every burst (RADIO_PrepareTX parity). F
|
|
// LOCK / TX LOCK and modulation are fixed for the session, but the battery
|
|
// is re-sampled over the idle gaps (FOXHUNT_IdleHousekeeping), so a beacon
|
|
// left running stops keying up once the pack falls low or over-voltage
|
|
// instead of transmitting blind. Refuse, notify, and drop back to hunt.
|
|
VfoState_t state = FOXHUNT_TxState();
|
|
if (state != VFO_STATE_NORMAL) {
|
|
FOXHUNT_TxDeniedNotice(state);
|
|
foxBeacon = false;
|
|
beaconPhaseTx = false;
|
|
FOXHUNT_EnterHunt();
|
|
return;
|
|
}
|
|
|
|
// The burst repeats the ID for the whole TX window, redrawing the screen
|
|
// itself each repeat (remaining-window countdown); it may clear foxBeacon
|
|
// (side-key abort) or foxRunning (EXIT).
|
|
FOXHUNT_BeaconTransmit();
|
|
|
|
beaconPhaseTx = false;
|
|
beaconIdleLeft = beaconIdle;
|
|
beaconIdleTick = 0;
|
|
|
|
if (foxRunning && !foxBeacon) // side-key switched to hunt
|
|
FOXHUNT_EnterHunt();
|
|
return; // EXIT (quit) falls through
|
|
}
|
|
|
|
// Idle (silent) phase: responsive, editable countdown.
|
|
#ifdef ENABLE_FEAT_F4HWN_K5VIEWER
|
|
K5VIEWER_ParseInput();
|
|
#endif
|
|
FOXHUNT_BeaconKeys();
|
|
|
|
if (!foxRunning) // EXIT: leave Fox Hunt
|
|
return;
|
|
if (!foxBeacon) { // side-key: back to the hunt
|
|
FOXHUNT_EnterHunt();
|
|
return;
|
|
}
|
|
|
|
FOXHUNT_BeaconDraw(false, beaconIdleLeft);
|
|
FOXHUNT_BlitScreen();
|
|
|
|
if (++beaconIdleTick >= (1000 / FOXHUNT_TICK_MS)) { // one second elapsed
|
|
beaconIdleTick = 0;
|
|
if (beaconIdleLeft > 0)
|
|
beaconIdleLeft--;
|
|
if (beaconIdleLeft == 0)
|
|
beaconPhaseTx = true; // next tick transmits
|
|
}
|
|
|
|
FOXHUNT_IdleHousekeeping(); // backlight timeout (no sleep while beaconing)
|
|
FOXHUNT_TickDelay(); // tick delay + smooth backlight fade
|
|
}
|
|
|
|
// --- Persistence (external flash) --------------------------------------------
|
|
// Concatenated right after the VFO data in the VFO sector. NB: the 14 VFOs really
|
|
// span 0x9000..0x90E0 (224 B); the old 0x90D6 mapping bound was 10 B short and
|
|
// overlapped the last VFO (470 MHz VFO1 @ 0x90D0..0x90DF), so the config sits at
|
|
// 0x90E0, just past the real end. Normal saves are read-modify-write (Append=false)
|
|
// so they preserve these bytes, and the VFO mapping is extended to 0x90E7
|
|
// (eeprom_compat.c) so aircopy clones them with the VFOs. A factory reset clears it.
|
|
#define FOXHUNT_CFG_ADDR 0x0090E0u
|
|
#define FOXHUNT_CFG_MAGIC 0xF4u // tells a written config from erased flash (0xFF)
|
|
#define FOXHUNT_CFG_LEN 7 // magic + att + graph + audio + idle + fox + tx
|
|
|
|
// RAM mirror of the bytes last written to flash, so FOXHUNT_SaveConfig only touches
|
|
// the flash when a value actually changed.
|
|
static uint8_t foxCfgSaved[FOXHUNT_CFG_LEN];
|
|
|
|
// Pack the live settings into the on-flash layout.
|
|
static void FOXHUNT_ConfigPack(uint8_t out[FOXHUNT_CFG_LEN])
|
|
{
|
|
out[0] = FOXHUNT_CFG_MAGIC;
|
|
out[1] = attStep;
|
|
out[2] = foxGraphMode;
|
|
out[3] = foxAudioMode;
|
|
out[4] = beaconIdle;
|
|
out[5] = foxFox;
|
|
out[6] = beaconTx;
|
|
}
|
|
|
|
// Restore persisted settings; erased/invalid flash leaves the defaults in place.
|
|
static void FOXHUNT_LoadConfig(void)
|
|
{
|
|
uint8_t cfg[FOXHUNT_CFG_LEN];
|
|
PY25Q16_ReadBuffer(FOXHUNT_CFG_ADDR, cfg, sizeof(cfg));
|
|
|
|
if (cfg[0] == FOXHUNT_CFG_MAGIC) { // valid, saved config
|
|
if (cfg[1] < FOXHUNT_ATT_COUNT) attStep = cfg[1];
|
|
if (cfg[2] <= FOXHUNT_GRAPH_HIST) foxGraphMode = cfg[2];
|
|
if (cfg[3] <= FOXHUNT_AUDIO_STATION) foxAudioMode = cfg[3];
|
|
if (cfg[4] >= FOXHUNT_BEACON_IDLE_MIN && cfg[4] <= FOXHUNT_BEACON_IDLE_MAX
|
|
&& (cfg[4] % FOXHUNT_BEACON_IDLE_STEP) == 0)
|
|
beaconIdle = cfg[4];
|
|
if (cfg[5] < FOXHUNT_FOX_COUNT) foxFox = cfg[5];
|
|
if (cfg[6] >= FOXHUNT_BEACON_TX_MIN && cfg[6] <= FOXHUNT_BEACON_TX_MAX
|
|
&& (cfg[6] % FOXHUNT_BEACON_TX_STEP) == 0)
|
|
beaconTx = cfg[6];
|
|
}
|
|
|
|
FOXHUNT_ConfigPack(foxCfgSaved); // mirror the loaded (or default) state
|
|
}
|
|
|
|
// Write the settings to flash, but only when they changed since the last write.
|
|
// Called on the 500 ms tick (so any change persists within ~0.5 s and survives a
|
|
// power-off, not just a clean EXIT) and once more on leaving Fox Hunt. The RAM
|
|
// compare avoids re-reading the 4 KB sector on every quiet tick.
|
|
static void FOXHUNT_SaveConfig(void)
|
|
{
|
|
uint8_t cfg[FOXHUNT_CFG_LEN];
|
|
FOXHUNT_ConfigPack(cfg);
|
|
|
|
if (memcmp(cfg, foxCfgSaved, sizeof(cfg)) == 0)
|
|
return;
|
|
|
|
PY25Q16_WriteBuffer(FOXHUNT_CFG_ADDR, cfg, sizeof(cfg), false);
|
|
memcpy(foxCfgSaved, cfg, sizeof(cfg));
|
|
}
|
|
|
|
void APP_RunFoxHunt(void)
|
|
{
|
|
// Finish any pending backlight fade, then start with the screen on and a full
|
|
// BLTime window (BACKLIGHT_TurnOn also re-arms the sleep countdown).
|
|
BACKLIGHT_UpdateTickless();
|
|
BACKLIGHT_TurnOn();
|
|
|
|
// Hunt on the user-selected VFO: dual-watch / cross-band may have left the
|
|
// radio listening on the other VFO, so force RX on the selected one and retune.
|
|
gEeprom.RX_VFO = gEeprom.TX_VFO;
|
|
gRxVfo = gTxVfo;
|
|
gCurrentVfo = gTxVfo;
|
|
RADIO_SetupRegisters(true);
|
|
|
|
// Beacon defaults (LoadConfig may override fox / tx / idle below).
|
|
beaconIdle = FOXHUNT_BEACON_IDLE_DEF;
|
|
beaconTx = FOXHUNT_BEACON_TX_DEF;
|
|
foxFox = FOXHUNT_FOX_CALL; // identified beacon by default (legal on ham)
|
|
beaconPhaseTx = false;
|
|
|
|
// Read the callsign from the boot message (line 1), sanitised to what Morse can
|
|
// send; empty/erased leaves foxCall empty (the CALL id then falls back to bare MOE).
|
|
{
|
|
char call[FOXHUNT_CALLSIGN_MAX + 1];
|
|
uint8_t n = 0;
|
|
PY25Q16_ReadBuffer(FOXHUNT_CALLSIGN_ADDR, call, FOXHUNT_CALLSIGN_MAX);
|
|
call[FOXHUNT_CALLSIGN_MAX] = '\0';
|
|
for (uint8_t i = 0; i < FOXHUNT_CALLSIGN_MAX; i++) {
|
|
char c = call[i];
|
|
if (c == '\0' || (uint8_t)c == 0xFF)
|
|
break;
|
|
if (c >= 'a' && c <= 'z')
|
|
c -= 32;
|
|
if ((c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '/')
|
|
foxCall[n++] = c;
|
|
}
|
|
foxCall[n] = '\0';
|
|
}
|
|
|
|
// Start in the hunt (RX) sub-mode, S-meter staircase gauge by default, then restore
|
|
// any persisted settings (attenuator, gauge, audio, beacon idle / fox / tx).
|
|
attStep = 0;
|
|
foxGraphMode = FOXHUNT_GRAPH_BAR;
|
|
foxAudioMode = FOXHUNT_AUDIO_OFF;
|
|
FOXHUNT_LoadConfig(); // may override att / gauge / audio / idle / fox / tx
|
|
FOXHUNT_EnterHunt(); // applies the restored attStep and audio mode
|
|
// beaconMsg is (re)built by FOXHUNT_BeaconTransmit before every burst, and nothing
|
|
// reads it before the first burst, so no need to assemble it here.
|
|
|
|
// Prime the key state with whatever is held right now, so the side key that
|
|
// launched Fox Hunt (still down on a long-press assignment) is not taken for
|
|
// a fresh press and does not immediately toggle to the beacon.
|
|
kbd.prev = kbd.current = KEYBOARD_GetKey();
|
|
gWasFKeyPressed = false; // start with the reverse-step arm cleared
|
|
|
|
foxRunning = true;
|
|
while (foxRunning) {
|
|
#if defined(ENABLE_UART) || defined(ENABLE_USB)
|
|
UART_ServiceCommands();
|
|
#endif
|
|
if (foxBeacon) {
|
|
FOXHUNT_BeaconTick();
|
|
continue;
|
|
}
|
|
#ifdef ENABLE_FEAT_F4HWN_K5VIEWER
|
|
// Keep the K5Viewer link alive and pick up any remote key.
|
|
K5VIEWER_ParseInput();
|
|
#endif
|
|
FOXHUNT_HandleKeys();
|
|
if (foxBeacon) // just switched to beacon: skip the RX work this tick
|
|
continue;
|
|
|
|
curDbm = FOXHUNT_ReadDbm();
|
|
if (curDbm > peakDbm)
|
|
peakDbm = curDbm;
|
|
if (curDbm < minDbm)
|
|
minDbm = curDbm;
|
|
|
|
if (++trendTick >= FOXHUNT_TREND_TICKS) {
|
|
trendDelta = curDbm - trendRef;
|
|
trendRef = curDbm;
|
|
trendTick = 0;
|
|
}
|
|
|
|
FOXHUNT_HistSample(); // feed the smoothed signal-history sparkline
|
|
|
|
FOXHUNT_Draw();
|
|
|
|
FOXHUNT_BlitScreen(); // status + full frame + K5Viewer mirror
|
|
|
|
// Beep mode: Geiger blip whose rate/pitch track the level (silent below floor).
|
|
if (foxAudioMode == FOXHUNT_AUDIO_BEEP && curDbm >= FOXHUNT_SILENCE_DBM) {
|
|
if (++audioTick >= FOXHUNT_BlipPeriod(curDbm)) {
|
|
audioTick = 0;
|
|
FOXHUNT_Blip(FOXHUNT_DbmToTone(curDbm));
|
|
}
|
|
}
|
|
// Station mode: route the received audio, gated by the silence floor.
|
|
else if (foxAudioMode == FOXHUNT_AUDIO_STATION) {
|
|
BK4819_SetAF(curDbm >= FOXHUNT_SILENCE_DBM
|
|
? (gRxVfo->Modulation == MODULATION_AM ? BK4819_AF_AM : BK4819_AF_FM)
|
|
: BK4819_AF_MUTE);
|
|
}
|
|
|
|
FOXHUNT_IdleHousekeeping(); // backlight timeout / sleep
|
|
FOXHUNT_TickDelay(); // tick delay + smooth backlight fade
|
|
}
|
|
|
|
// Persist the session's settings so they survive a power cycle (covers EXIT
|
|
// and the sleep auto power-off, both of which just clear foxRunning).
|
|
FOXHUNT_SaveConfig();
|
|
|
|
gWasFKeyPressed = false; // don't leak a pending reverse-step arm to the main screen
|
|
|
|
// Mute any pending tone, drop the PA (safety), then restore the normal VFO
|
|
// selection and RX config.
|
|
AUDIO_AudioPathOff();
|
|
BK4819_ToggleGpioOut(BK4819_GPIO1_PIN29_PA_ENABLE, false);
|
|
RADIO_SelectVfos();
|
|
RADIO_SetupRegisters(true);
|
|
}
|
|
|
|
void ACTION_FoxHunt(void)
|
|
{
|
|
APP_RunFoxHunt();
|
|
GUI_SelectNextDisplay(DISPLAY_MAIN);
|
|
}
|
|
|
|
#endif // ENABLE_FEAT_F4HWN_FOXHUNT
|