uv-k5-firmware-custom/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 <string.h>

#include "app/dtmf.h"
#include "app/fm.h"
#include "bsp/dp32g030/gpio.h"
#include "dcs.h"
#include "driver/bk1080.h"
#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)
{
	#ifndef DISABLE_NOAA
		if (IS_NOT_NOAA_CHANNEL(gRxVfo->CHANNEL_SAVE))
	#endif
	{
		gCurrentCodeType = gSelectedCodeType;
		if (gCssScanMode == CSS_SCAN_MODE_OFF)
		{
			if (gRxVfo->IsAM)
				gCurrentCodeType = CODE_TYPE_OFF;
			else
				gCurrentCodeType = gRxVfo->pRX->CodeType;
		}
	}
	#ifndef DISABLE_NOAA
		else
			gCurrentCodeType = CODE_TYPE_CONTINUOUS_TONE;
	#endif
	
	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;
	uint16_t Countdown = 0;

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

	if (bWasPowerSave) {
		if (Function != FUNCTION_POWER_SAVE) {
			BK4819_Conditional_RX_TurnOn_and_GPIO6_Enable();
			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) {
			if (gFmRadioMode) {
				Countdown = 500;
			}
			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_GPIO6_PIN2, false);
		gBatterySaveCountdownExpired = false;
		gUpdateStatus = true;
		GUI_SelectNextDisplay(DISPLAY_MAIN);
		return;

	case FUNCTION_TRANSMIT:
		if (gFmRadioMode)
			BK1080_Init(0, false);

		#ifndef DISABLE_ALARM
			if (gAlarmState == ALARM_STATE_TXALARM && gEeprom.ALARM_MODE != ALARM_MODE_TONE)
			{
				gAlarmState = ALARM_STATE_ALARM;
				GUI_DisplayScreen();
				GPIO_ClearBit(&GPIOC->DATA, GPIOC_PIN_AUDIO_PATH);
				SYSTEM_DelayMs(20);
				BK4819_PlayTone(500, 0);
				SYSTEM_DelayMs(2);
				GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_AUDIO_PATH);
				gEnableSpeaker = true;
				SYSTEM_DelayMs(60);
				BK4819_ExitTxMute();
				gAlarmToneCounter = 0;
				break;
			}
		#endif
		
		GUI_DisplayScreen();
		RADIO_SetTxParameters();
		BK4819_ToggleGpioOut(BK4819_GPIO1_PIN29_RED, true);

		DTMF_Reply();

		#ifndef DISABLE_ALARM
			if (gAlarmState != ALARM_STATE_OFF)
			{
				if (gAlarmState == ALARM_STATE_TX1750)
					BK4819_TransmitTone(true, 1750);
				else
					BK4819_TransmitTone(true, 500);
	
				SYSTEM_DelayMs(2);
				GPIO_SetBit(&GPIOC->DATA, GPIOC_PIN_AUDIO_PATH);
				gAlarmToneCounter = 0;
				gEnableSpeaker = true;
				break;
			}
		#endif
		
		if (gCurrentVfo->SCRAMBLING_TYPE && gSetting_ScrambleEnable)
			BK4819_EnableScramble(gCurrentVfo->SCRAMBLING_TYPE - 1U);
		else
			BK4819_DisableScramble();

		break;
	}
	gBatterySaveCountdown = 1000;
	gSchedulePowerSave = false;
	gFM_RestoreCountdown = Countdown;
}