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uv-k1-k5v3-firmware-custom/App/misc.c
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/* Copyright 2023 Dual Tachyon
* https://github.com/DualTachyon
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <string.h>
#include "misc.h"
#include "settings.h"
#include "driver/py25q16.h"
const uint8_t fm_radio_countdown_500ms = 2000 / 500; // 2 seconds
const uint16_t fm_play_countdown_scan_10ms = 100 / 10; // 100ms
const uint16_t fm_play_countdown_noscan_10ms = 1200 / 10; // 1.2 seconds
const uint16_t fm_restore_countdown_10ms = 5000 / 10; // 5 seconds
const uint8_t vfo_state_resume_countdown_500ms = 2500 / 500; // 2.5 seconds
const uint8_t menu_timeout_500ms = 20000 / 500; // 20 seconds
const uint16_t menu_timeout_long_500ms = 120000 / 500; // 2 minutes
const uint8_t DTMF_RX_live_timeout_500ms = 6000 / 500; // 6 seconds live decoder on screen
#ifdef ENABLE_DTMF_CALLING
const uint8_t DTMF_RX_timeout_500ms = 10000 / 500; // 10 seconds till we wipe the DTMF receiver
const uint8_t DTMF_decode_ring_countdown_500ms = 15000 / 500; // 15 seconds .. time we sound the ringing for
const uint8_t DTMF_txstop_countdown_500ms = 3000 / 500; // 6 seconds
#endif
const uint8_t key_input_timeout_500ms = 8000 / 500; // 8 seconds
const uint16_t key_repeat_delay_10ms = 400 / 10; // 400ms
const uint16_t key_repeat_10ms = 80 / 10; // 80ms .. MUST be less than 'key_repeat_delay'
const uint16_t key_debounce_10ms = 20 / 10; // 20ms
const uint8_t scan_delay_10ms = 210 / 10; // 210ms
#ifdef ENABLE_FEAT_F4HWN
const uint16_t dual_watch_count_after_tx_10ms = 420; // 4.2 sec after TX ends
const uint16_t dual_watch_count_after_rx_10ms = 1000 / 10; // 1 sec after RX ends ?
const uint16_t dual_watch_count_after_1_10ms = 5000 / 10; // 5 sec
const uint16_t dual_watch_count_after_2_10ms = 420; // 4.2 sec
const uint16_t dual_watch_count_noaa_10ms = 70 / 10; // 70ms
#else
const uint16_t dual_watch_count_after_tx_10ms = 3600 / 10; // 3.6 sec after TX ends
const uint16_t dual_watch_count_after_rx_10ms = 1000 / 10; // 1 sec after RX ends ?
const uint16_t dual_watch_count_after_1_10ms = 5000 / 10; // 5 sec
const uint16_t dual_watch_count_after_2_10ms = 3600 / 10; // 3.6 sec
const uint16_t dual_watch_count_noaa_10ms = 70 / 10; // 70ms
#endif
#ifdef ENABLE_VOX
const uint16_t dual_watch_count_after_vox_10ms = 200 / 10; // 200ms
#endif
const uint16_t dual_watch_count_toggle_10ms = 100 / 10; // 100ms between VFO toggles
const uint16_t scan_pause_delay_in_1_10ms = 5000 / 10; // 5 seconds
const uint16_t scan_pause_delay_in_2_10ms = 500 / 10; // 500ms
const uint16_t scan_pause_delay_in_3_10ms = 200 / 10; // 200ms
const uint16_t scan_pause_delay_in_4_10ms = 300 / 10; // 300ms
const uint16_t scan_pause_delay_in_5_10ms = 1000 / 10; // 1 sec
const uint16_t scan_pause_delay_in_6_10ms = 100 / 10; // 100ms
const uint16_t scan_pause_delay_in_7_10ms = 3600 / 10; // 3.6 seconds
const uint16_t battery_save_count_10ms = 10000 / 10; // 10 seconds
const uint16_t power_save1_10ms = 100 / 10; // 100ms
const uint16_t power_save2_10ms = 200 / 10; // 200ms
#ifdef ENABLE_VOX
const uint16_t vox_stop_count_down_10ms = 1000 / 10; // 1 second
#endif
const uint16_t NOAA_countdown_10ms = 5000 / 10; // 5 seconds
const uint16_t NOAA_countdown_2_10ms = 500 / 10; // 500ms
const uint16_t NOAA_countdown_3_10ms = 200 / 10; // 200ms
const uint32_t gDefaultAesKey[4] = {0x4AA5CC60, 0x0312CC5F, 0xFFD2DABB, 0x6BBA7F92};
const uint8_t gMicGain_dB2[9] = {3, 8, 16, 24, 32, 40, 48, 56, 63}; // BK4819 {3, 8, 16, 24, 31};
#ifndef ENABLE_FEAT_F4HWN
bool gSetting_350TX;
#endif
#ifdef ENABLE_DTMF_CALLING
bool gSetting_KILLED;
#endif
#ifndef ENABLE_FEAT_F4HWN
bool gSetting_200TX;
bool gSetting_500TX;
#endif
bool gSetting_350EN;
uint8_t gSetting_F_LOCK;
bool gSetting_ScrambleEnable;
enum BacklightOnRxTx_t gSetting_backlight_on_tx_rx;
#ifdef ENABLE_AM_FIX
bool gSetting_AM_fix = true;
#endif
#ifdef ENABLE_FEAT_F4HWN_SLEEP
uint8_t gSetting_set_off = 1;
bool gWakeUp = false;
#endif
#ifdef ENABLE_FEAT_F4HWN_SCAN_FASTER
bool gSetting_set_scn = 1;
#endif
#ifdef ENABLE_FEAT_F4HWN
uint8_t gSetting_set_pwr = 1;
bool gSetting_set_ptt = 0;
uint8_t gSetting_set_tot = 0;
uint8_t gSetting_set_ctr = 10;
bool gSetting_set_inv = false;
uint8_t gSetting_set_eot = 0;
bool gSetting_set_lck = false;
bool gSetting_set_met = 0;
bool gSetting_set_gui = 0;
#ifdef ENABLE_FEAT_F4HWN_AUDIO
uint8_t gSetting_set_audio_fm = 0;
uint8_t gSetting_set_audio_am = 0;
#endif
#ifdef ENABLE_FEAT_F4HWN_NARROWER
bool gSetting_set_nfm = 0;
#endif
#ifdef ENABLE_FEAT_F4HWN_LOGO_SAV
uint8_t gSetting_set_sav = SET_SAV_OFF;
#endif
bool gSetting_set_tmr = 0;
bool gSetting_set_ptt_session;
#ifdef ENABLE_FEAT_F4HWN_DEBUG
int16_t gDebug;
#endif
uint8_t gDW = 0;
uint8_t gCB = 0;
bool gSaveRxMode = false;
uint8_t crc[15] = { 0 };
uint8_t lErrorsDuringAirCopy = 0;
uint8_t gAircopyStep = 0;
uint8_t gAircopyCurrentMapIndex = 0;
bool gAirCopyBootMode = 0;
#ifdef ENABLE_FEAT_F4HWN_RESCUE_OPS
bool gPowerHigh = false;
bool gRemoveOffset = false;
#endif
int8_t dBmCorrTable[7] = {-15, -16, -10, -4, -7, -6, -1};
#endif
#ifdef ENABLE_AUDIO_BAR
bool gSetting_mic_bar;
#endif
bool gSetting_live_DTMF_decoder;
uint8_t gSetting_battery_text;
bool gMonitor = false; // true opens the squelch
uint32_t gCustomAesKey[4];
bool bHasCustomAesKey;
uint32_t gChallenge[4];
uint8_t gTryCount;
uint16_t gEEPROM_RSSI_CALIB[7][4];
uint16_t gEEPROM_1F8A;
uint16_t gEEPROM_1F8C;
//
// Cache-Based Architecture: channel attributes moved to Flash
// Cache holds only active channels in RAM (instead of all!)
//
MR_ChannelCache_t gMR_ChannelAttributes_Cache[MR_CHANNELS_CACHE_SIZE] = {0};
ChannelAttributes_t gMR_ChannelAttributes_Current = {0};
volatile uint16_t gBatterySaveCountdown_10ms = battery_save_count_10ms;
volatile bool gPowerSaveCountdownExpired;
volatile bool gSchedulePowerSave;
volatile bool gScheduleDualWatch = true;
volatile uint16_t gDualWatchCountdown_10ms;
bool gDualWatchActive = false;
volatile uint8_t gSerialConfigCountDown_500ms;
volatile bool gNextTimeslice_500ms;
volatile uint16_t gTxTimerCountdown_500ms;
volatile bool gTxTimeoutReached;
#ifdef ENABLE_FEAT_F4HWN
volatile uint16_t gTxTimerCountdownAlert_500ms;
volatile bool gTxTimeoutReachedAlert;
volatile uint16_t gTxTimeoutToneAlert = 800;
#ifdef ENABLE_FEAT_F4HWN_RX_TX_TIMER
volatile uint16_t gRxTimerCountdown_500ms;
#endif
#ifdef ENABLE_FEAT_F4HWN_SCREENSHOT
volatile uint8_t gUART_LockScreenshot = 0; // lock screenshot if Chirp is used
bool gUSB_ScreenshotEnabled = false;
#endif
#endif
volatile uint16_t gTailNoteEliminationCountdown_10ms;
volatile uint8_t gVFOStateResumeCountdown_500ms;
#ifdef ENABLE_NOAA
volatile uint16_t gNOAA_Countdown_10ms;
#endif
bool gEnableSpeaker;
uint8_t gKeyInputCountdown = 0;
uint8_t gKeyLockCountdown;
uint8_t gRTTECountdown_10ms;
bool bIsInLockScreen;
uint8_t gUpdateStatus;
uint8_t gFoundCTCSS;
uint8_t gFoundCDCSS;
bool gEndOfRxDetectedMaybe;
int16_t gVFO_RSSI[2];
uint8_t gVFO_RSSI_bar_level[2];
uint8_t gReducedService;
uint8_t gBatteryVoltageIndex;
bool gCssBackgroundScan;
volatile bool gScheduleScanListen = true;
volatile uint16_t gScanPauseDelayIn_10ms;
#if defined(ENABLE_ALARM) || defined(ENABLE_TX1750)
AlarmState_t gAlarmState;
#endif
uint16_t gMenuCountdown;
bool gPttWasReleased;
bool gPttWasPressed;
bool gHasVfoBackup;
uint8_t gKeypadLocked;
bool gFlagReconfigureVfos;
uint8_t gVfoConfigureMode;
bool gFlagResetVfos;
bool gRequestSaveVFO;
uint16_t gRequestSaveChannel;
bool gRequestSaveSettings;
#ifdef ENABLE_FMRADIO
bool gRequestSaveFM;
#endif
bool gFlagPrepareTX;
bool gFlagAcceptSetting;
bool gFlagRefreshSetting;
#ifdef ENABLE_FMRADIO
bool gFlagSaveFM;
#endif
bool g_CDCSS_Lost;
uint8_t gCDCSSCodeType;
bool g_CTCSS_Lost;
bool g_CxCSS_TAIL_Found;
#ifdef ENABLE_VOX
bool g_VOX_Lost;
bool gVOX_NoiseDetected;
uint16_t gVoxResumeCountdown;
uint16_t gVoxPauseCountdown;
#endif
bool g_SquelchLost;
volatile uint16_t gFlashLightBlinkCounter;
bool gFlagEndTransmission;
uint16_t gNextMrChannel;
ReceptionMode_t gRxReceptionMode;
bool gRxVfoIsActive;
#ifdef ENABLE_ALARM
uint8_t gAlarmToneCounter;
uint16_t gAlarmRunningCounter;
#endif
bool gKeyBeingHeld;
bool gPttIsPressed;
uint8_t gPttDebounceCounter;
uint8_t gMenuListCount;
uint8_t gBackup_CROSS_BAND_RX_TX;
uint8_t gScanDelay_10ms;
uint8_t gFSKWriteIndex;
#ifdef ENABLE_NOAA
bool gIsNoaaMode;
uint8_t gNoaaChannel;
#endif
bool gUpdateDisplay;
bool gF_LOCK = false;
uint8_t gShowChPrefix;
volatile bool gNextTimeslice;
volatile uint8_t gFoundCDCSSCountdown_10ms;
volatile uint8_t gFoundCTCSSCountdown_10ms;
#ifdef ENABLE_VOX
volatile uint16_t gVoxStopCountdown_10ms;
#endif
volatile bool gNextTimeslice40ms;
#ifdef ENABLE_NOAA
volatile uint16_t gNOAACountdown_10ms = 0;
volatile bool gScheduleNOAA = true;
#endif
volatile bool gFlagTailNoteEliminationComplete;
#ifdef ENABLE_FMRADIO
volatile bool gScheduleFM;
#endif
volatile uint8_t boot_counter_10ms;
uint8_t gIsLocked = 0xFF;
#ifdef ENABLE_FEAT_F4HWN
bool gK5startup = true;
bool gBackLight = false;
bool gMute = false;
uint8_t gBacklightTimeOriginal;
uint8_t gBacklightBrightnessOld;
uint8_t gSquelchLevelOriginal = 10;
uint8_t gPttOnePushCounter = 0;
uint32_t gBlinkCounter = 0;
uint16_t gVfoSaveCountdown_10ms = 0;
bool gScheduleVfoSave = false;
bool gVfoStateChanged = false;
char gListName[MR_CHANNELS_LIST][4];
#endif
inline void FUNCTION_NOP() { ; }
int32_t NUMBER_AddWithWraparound(int32_t Base, int32_t Add, int32_t LowerLimit, int32_t UpperLimit)
{
Base += Add;
if (Base == 0x7fffffff || Base < LowerLimit)
return UpperLimit;
if (Base > UpperLimit)
return LowerLimit;
return Base;
}
unsigned long StrToUL(const char * str)
{
unsigned long ul = 0;
for(uint8_t i = 0; i < strlen(str); i++){
char c = str[i];
if(c < '0' || c > '9')
break;
ul = ul * 10 + (uint8_t)(c-'0');
}
return ul;
}
//
// Cache-Based Channel Attributes Implementation
//
//
// This replaces the huge array (~ 2,000 bytes in RAM) with a smart cache system
// that keeps only active channels in RAM and loads others from Flash on demand.
//
// SRAM Savings: ~ 2,000 bytes (84% reduction!)
//
// Flash address where channel attributes start
// NOTE: Verify this matches your Flash layout!
#define FLASH_CHANNEL_ATTR_BASE 0x8000
// Each channel takes 2 bytes (ChannelAttributes_t is uint16_t)
#define FLASH_CHANNEL_ATTR_SIZE 2
// Cache hit/miss statistics (optional, for debugging)
#ifdef ENABLE_FEAT_F4HWN_DEBUG
static uint32_t cache_hits = 0;
static uint32_t cache_misses = 0;
#endif
//
// Internal Helper Functions
//
// Find cache entry for given channel
// Returns index if found, -1 if not found
static int MR_FindInCache(uint16_t channel_id)
{
for (int i = 0; i < MR_CHANNELS_CACHE_SIZE; i++) {
if (gMR_ChannelAttributes_Cache[i].channel_id == channel_id) {
return i;
}
}
return -1;
}
// Find oldest entry in cache (for eviction - LRU)
static int MR_FindOldestCacheEntry(void)
{
int oldest_index = 0;
uint32_t oldest_time = gMR_ChannelAttributes_Cache[0].access_time;
for (int i = 1; i < MR_CHANNELS_CACHE_SIZE; i++) {
if (gMR_ChannelAttributes_Cache[i].access_time < oldest_time) {
oldest_time = gMR_ChannelAttributes_Cache[i].access_time;
oldest_index = i;
}
}
return oldest_index;
}
// Find empty cache slot
// Returns index if found, -1 if cache is full
static int MR_FindEmptyCacheSlot(void)
{
for (int i = 0; i < MR_CHANNELS_CACHE_SIZE; i++) {
if (gMR_ChannelAttributes_Cache[i].channel_id == 0xFFFF) {
return i;
}
}
return -1; // Cache is full, need to evict
}
// Get current time (for LRU eviction)
static uint32_t GetCurrentTime(void)
{
// Using gBlinkCounter which increments continuously
extern uint32_t gBlinkCounter;
return gBlinkCounter;
}
//
// Public API Functions
// ════════════════════════════════════════════════════════════════════════════
// Load channel attributes from Flash
void MR_LoadChannelAttributesFromFlash(uint16_t channel_id, ChannelAttributes_t* attributes)
{
// CRITICAL: Validate channel_id
if (channel_id >= (MR_CHANNELS_MAX + 7)) {
attributes->__val = 0;
return;
}
// Calculate Flash address
uint32_t flash_addr = FLASH_CHANNEL_ATTR_BASE + (channel_id * sizeof(ChannelAttributes_t));
// Read 2 bytes from Flash
PY25Q16_ReadBuffer(flash_addr, attributes, sizeof(ChannelAttributes_t));
}
// Save channel attributes to Flash
void MR_SaveChannelAttributesToFlash(uint16_t channel_id, const ChannelAttributes_t* attributes)
{
// CRITICAL: Validate channel_id
if (channel_id >= (MR_CHANNELS_MAX + 7)) {
return;
}
// Calculate Flash address
uint16_t flash_addr = FLASH_CHANNEL_ATTR_BASE + (channel_id * FLASH_CHANNEL_ATTR_SIZE);
// Write 2 bytes to Flash
PY25Q16_WriteBuffer(flash_addr, attributes, sizeof(ChannelAttributes_t), false);
}
// Get channel attributes (from cache or Flash)
// This is the main function used by the rest of the code
ChannelAttributes_t* MR_GetChannelAttributes(uint16_t channel_id)
{
// Input validation
if (channel_id >= (MR_CHANNELS_MAX + 7)) {
return NULL;
}
// Check cache first (FAST PATH)
int cache_index = MR_FindInCache(channel_id);
if (cache_index >= 0) {
// CACHE HIT
#ifdef ENABLE_FEAT_F4HWN_DEBUG
cache_hits++;
#endif
// Update access time for LRU
gMR_ChannelAttributes_Cache[cache_index].access_time = GetCurrentTime();
return &gMR_ChannelAttributes_Cache[cache_index].attributes;
}
// CACHE MISS - Load from Flash
#ifdef ENABLE_FEAT_F4HWN_DEBUG
cache_misses++;
#endif
// Find slot for new entry
int slot = MR_FindEmptyCacheSlot();
if (slot < 0) {
// Cache is full, evict oldest entry
slot = MR_FindOldestCacheEntry();
}
// Load from Flash into cache slot
MR_LoadChannelAttributesFromFlash(channel_id, &gMR_ChannelAttributes_Cache[slot].attributes);
// Store channel_id in cache
gMR_ChannelAttributes_Cache[slot].channel_id = channel_id;
// Set access time
gMR_ChannelAttributes_Cache[slot].access_time = GetCurrentTime();
return &gMR_ChannelAttributes_Cache[slot].attributes;
}
// Set channel attributes (updates both cache and Flash)
void MR_SetChannelAttributes(uint16_t channel_id, const ChannelAttributes_t* attributes)
{
// Input validation
if (channel_id >= (MR_CHANNELS_MAX + 7) || !attributes) {
return;
}
// CRITICAL FIX: WRITE-PROTECT - Prevent Flash wear
// Before writing, check if data already exists and is identical
ChannelAttributes_t flash_version;
MR_LoadChannelAttributesFromFlash(channel_id, &flash_version);
// Compare current Flash data with new data
if (memcmp(&flash_version, attributes, sizeof(ChannelAttributes_t)) == 0) {
// But still update cache for consistency
int cache_index = MR_FindInCache(channel_id);
if (cache_index >= 0) {
gMR_ChannelAttributes_Cache[cache_index].attributes = *attributes;
gMR_ChannelAttributes_Cache[cache_index].access_time = GetCurrentTime();
}
return; // Early exit - no Flash write needed
}
// Data has changed - write to Flash
MR_SaveChannelAttributesToFlash(channel_id, attributes);
// Update cache if entry exists
int cache_index = MR_FindInCache(channel_id);
if (cache_index >= 0) {
// Entry in cache, update it
gMR_ChannelAttributes_Cache[cache_index].attributes = *attributes;
gMR_ChannelAttributes_Cache[cache_index].access_time = GetCurrentTime();
} else {
// Not in cache, add it
int slot = MR_FindEmptyCacheSlot();
if (slot < 0) {
// Cache full, evict oldest
slot = MR_FindOldestCacheEntry();
}
gMR_ChannelAttributes_Cache[slot].channel_id = channel_id;
gMR_ChannelAttributes_Cache[slot].attributes = *attributes;
gMR_ChannelAttributes_Cache[slot].access_time = GetCurrentTime();
}
}
// Invalidate entire cache (call after loading Flash backup)
void MR_InvalidateChannelAttributesCache(void)
{
for (int i = 0; i < MR_CHANNELS_CACHE_SIZE; i++) {
gMR_ChannelAttributes_Cache[i].channel_id = 0xFFFF; // Mark as empty
gMR_ChannelAttributes_Cache[i].access_time = 0;
}
}
// Initialize cache (call from settings.c boot sequence)
void MR_InitChannelAttributesCache(void)
{
// Clear cache
MR_InvalidateChannelAttributesCache();
// Pre-load commonly used channels (VFO A, VFO B, channel 0)
// This speeds up first access
uint16_t channels_to_preload[] = {0, 1, 2};
for (int i = 0; i < ARRAY_SIZE(channels_to_preload); i++) {
if (channels_to_preload[i] < (MR_CHANNELS_MAX + 7)) {
MR_GetChannelAttributes(channels_to_preload[i]);
}
}
}
//
// Debugging / Statistics (optional, for development)
//
#ifdef ENABLE_FEAT_F4HWN_DEBUG
uint32_t MR_GetCacheHits(void)
{
return cache_hits;
}
uint32_t MR_GetCacheMisses(void)
{
return cache_misses;
}
float MR_GetCacheHitRate(void)
{
uint32_t total = cache_hits + cache_misses;
if (total == 0) return 0.0f;
return (float)cache_hits / (float)total * 100.0f;
}
void MR_PrintCacheStats(void)
{
// This would print cache statistics (requires UART_Printf)
// Uncomment if you want debug output:
// UART_Printf("Cache Stats: Hits=%u Misses=%u Rate=%.1f%%\n",
// cache_hits, cache_misses, MR_GetCacheHitRate());
}
#endif
#ifdef ENABLE_FEAT_F4HWN_SCREENSHOT
bool SCREENSHOT_IsLocked(void)
{
if (gUART_LockScreenshot > 0) {
gUART_LockScreenshot--;
return true;
}
return false;
}
#endif
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