functions.c

/* 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 "app/dtmf.h"
#include <string.h>
#if defined(ENABLE_FMRADIO)
#include "app/fm.h"
#endif
#include "bsp/dp32g030/gpio.h"
#include "dcs.h"
#if defined(ENABLE_FMRADIO)
#include "driver/bk1080.h"
#endif
#include "driver/bk4819.h"
#include "driver/gpio.h"
#include "driver/system.h"
#include "functions.h"
#include "helper/battery.h"
#include "misc.h"
#include "radio.h"
#include "settings.h"
#include "ui/status.h"
#include "ui/ui.h"

FUNCTION_Type_t gCurrentFunction;

void FUNCTION_Init(void) {
  if (IS_NOT_NOAA_CHANNEL(gRxVfo->CHANNEL_SAVE)) {
    gCurrentCodeType = gSelectedCodeType;
    if (gCssScanMode == CSS_SCAN_MODE_OFF) {
      if (gRxVfo->ModulationType) {
        gCurrentCodeType = CODE_TYPE_OFF;
      } else {
        gCurrentCodeType = gRxVfo->pRX->CodeType;
      }
    }
  } else {
    gCurrentCodeType = CODE_TYPE_CONTINUOUS_TONE;
  }
  gDTMF_RequestPending = false;
  gDTMF_WriteIndex = 0;
  memset(gDTMF_Received, 0, sizeof(gDTMF_Received));
  g_CxCSS_TAIL_Found = false;
  g_CDCSS_Lost = false;
  g_CTCSS_Lost = false;
  g_VOX_Lost = false;
  g_SquelchLost = false;
  gTailNoteEliminationCountdown = 0;
  gFlagTteComplete = false;
  gFoundCTCSS = false;
  gFoundCDCSS = false;
  gFoundCTCSSCountdown = 0;
  gFoundCDCSSCountdown = 0;
  gEndOfRxDetectedMaybe = false;
  gSystickCountdown2 = 0;
}

void FUNCTION_Select(FUNCTION_Type_t Function) {
  FUNCTION_Type_t PreviousFunction;
  bool bWasPowerSave;

  PreviousFunction = gCurrentFunction;
  bWasPowerSave = (PreviousFunction == FUNCTION_POWER_SAVE);
  gCurrentFunction = Function;

  if (bWasPowerSave) {
    if (Function != FUNCTION_POWER_SAVE) {
      BK4819_EnableRX();
      gRxIdleMode = false;
      UI_DisplayStatus();
    }
  }

  switch (Function) {
  case FUNCTION_FOREGROUND:
    if (gDTMF_ReplyState != DTMF_REPLY_NONE) {
      RADIO_PrepareCssTX();
    }
    if (PreviousFunction == FUNCTION_TRANSMIT) {
      gVFO_RSSI_Level[0] = 0;
      gVFO_RSSI_Level[1] = 0;
    } else if (PreviousFunction != FUNCTION_RECEIVE) {
      break;
    }
#if defined(ENABLE_FMRADIO)
    if (gFmRadioMode) {
      gFM_RestoreCountdown = 500;
    }
#endif
    if (gDTMF_CallState == DTMF_CALL_STATE_CALL_OUT ||
        gDTMF_CallState == DTMF_CALL_STATE_RECEIVED) {
      gDTMF_AUTO_RESET_TIME = 1 + (gEeprom.DTMF_AUTO_RESET_TIME * 2);
    }
    return;

  case FUNCTION_MONITOR:
  case FUNCTION_INCOMING:
  case FUNCTION_RECEIVE:
    break;

  case FUNCTION_POWER_SAVE:
    gBatterySave = gEeprom.BATTERY_SAVE * 10;
    gRxIdleMode = true;
    BK4819_DisableVox();
    BK4819_Sleep();
    BK4819_ToggleGpioOut(BK4819_GPIO0_PIN28_RX_ENABLE, false);
    gBatterySaveCountdownExpired = false;
    gUpdateStatus = true;
    GUI_SelectNextDisplay(DISPLAY_MAIN);
    return;

  case FUNCTION_TRANSMIT:
#if defined(ENABLE_FMRADIO)
    if (gFmRadioMode) {
      BK1080_Init(0, false);
    }
#endif

    GUI_DisplayScreen();
    RADIO_enableTX();
    BK4819_ToggleGpioOut(BK4819_GPIO5_PIN1_RED, true);

    DTMF_Reply();

#if defined(ENABLE_TX1750)
    if (gAlarmState != ALARM_STATE_OFF) {
      if (gAlarmState == ALARM_STATE_TX1750) {
        BK4819_TransmitTone(true, 1750);
      }
      SYSTEM_DelayMs(2);
      GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_AUDIO_PATH);
      gEnableSpeaker = true;
      break;
    }
#endif
    if (gCurrentVfo->SCRAMBLING_TYPE && gSetting_ScrambleEnable) {
      BK4819_EnableScramble(gCurrentVfo->SCRAMBLING_TYPE - 1U);
    } else {
      BK4819_DisableScramble();
    }
    break;
  }
  gBatterySaveCountdown = 1000;
  gSchedulePowerSave = false;
#if defined(ENABLE_FMRADIO)
  gFM_RestoreCountdown = 0;
#endif
}