From b16aaa653c213ea6371ad98805d3af162ab8b664 Mon Sep 17 00:00:00 2001
From: Jonathan Naylor <naylorjs@yahoo.com>
Date: Fri, 18 Jan 2019 15:57:05 +0000
Subject: [PATCH] Add the concept of fixed modes.

---
 MMDVMHost.cpp | 62 +++++++++++++++++++++++++++++++++++++++++----------
 MMDVMHost.h   |  1 +
 2 files changed, 51 insertions(+), 12 deletions(-)

diff --git a/MMDVMHost.cpp b/MMDVMHost.cpp
index 735ec4f39..40c07b3ab 100644
--- a/MMDVMHost.cpp
+++ b/MMDVMHost.cpp
@@ -159,7 +159,8 @@ m_cwCallsign(),
 m_lockFileEnabled(false),
 m_lockFileName(),
 m_mobileGPS(NULL),
-m_remoteControl(NULL)
+m_remoteControl(NULL),
+m_fixedMode(false)
 {
 }
 
@@ -593,7 +594,26 @@ int CMMDVMHost::run()
 		}
 	}
 
-	setMode(MODE_IDLE);
+	// If only one voice mode is enabled, fix to that mode.
+	if (m_dstar != NULL && m_dmr == NULL && m_ysf == NULL && m_p25 == NULL && m_nxdn == NULL && m_pocsag == NULL) {
+		m_fixedMode = true;
+		setMode(MODE_DSTAR);
+	} else if (m_dstar == NULL && m_dmr != NULL && m_ysf == NULL && m_p25 == NULL && m_nxdn == NULL && m_pocsag == NULL) {
+		m_fixedMode = true;
+		setMode(MODE_DMR);
+	} else if (m_dstar == NULL && m_dmr == NULL && m_ysf != NULL && m_p25 == NULL && m_nxdn == NULL && m_pocsag == NULL) {
+		m_fixedMode = true;
+		setMode(MODE_YSF);
+	} else if (m_dstar == NULL && m_dmr == NULL && m_ysf == NULL && m_p25 != NULL && m_nxdn == NULL && m_pocsag == NULL) {
+		m_fixedMode = true;
+		setMode(MODE_P25);
+	} else if (m_dstar == NULL && m_dmr == NULL && m_ysf == NULL && m_p25 == NULL && m_nxdn != NULL && m_pocsag == NULL) {
+		m_fixedMode = true;
+		setMode(MODE_NXDN);
+	} else {
+		m_fixedMode = false;
+		setMode(MODE_IDLE);
+	}
 
 	LogMessage("MMDVMHost-%s is running", VERSION);
 
@@ -767,8 +787,10 @@ int CMMDVMHost::run()
 		if (transparentSocket != NULL && len > 0U)
 			transparentSocket->write(data, len, transparentAddress, transparentPort);
 
-		if (m_modeTimer.isRunning() && m_modeTimer.hasExpired())
-			setMode(MODE_IDLE);
+		if (!m_fixedMode) {
+			if (m_modeTimer.isRunning() && m_modeTimer.hasExpired())
+				setMode(MODE_IDLE);
+		}
 
 		if (m_dstar != NULL) {
 			ret = m_modem->hasDStarSpace();
@@ -927,7 +949,9 @@ int CMMDVMHost::run()
 		m_display->clock(ms);
 
 		m_modem->clock(ms);
-		m_modeTimer.clock(ms);
+
+		if (!m_fixedMode)
+			m_modeTimer.clock(ms);
 
 		if (m_dstar != NULL)
 			m_dstar->clock();
@@ -1684,32 +1708,46 @@ void CMMDVMHost::remoteControl()
 	REMOTE_COMMAND command = m_remoteControl->getCommand();
 	switch(command) {
 		case RCD_MODE_IDLE:
-			if (m_mode != MODE_IDLE)
+			if (m_mode != MODE_IDLE) {
+				m_fixedMode = false;
 				setMode(MODE_IDLE);
+			}
 			break;
 		case RCD_MODE_LOCKOUT:
-			if (m_mode != MODE_LOCKOUT)
+			if (m_mode != MODE_LOCKOUT) {
+				m_fixedMode = false;
 				setMode(MODE_LOCKOUT);
+			}
 			break;
 		case RCD_MODE_DSTAR:
-			if (m_dstar != NULL && m_mode != MODE_DSTAR)
+			if (m_dstar != NULL && m_mode != MODE_DSTAR) {
+				m_fixedMode = true;
 				setMode(MODE_DSTAR);
+			}
 			break;
 		case RCD_MODE_DMR:
-			if (m_dmr != NULL && m_mode != MODE_DMR)
+			if (m_dmr != NULL && m_mode != MODE_DMR) {
+				m_fixedMode = true;
 				setMode(MODE_DMR);
+			}
 			break;
 		case RCD_MODE_YSF:
-			if (m_ysf != NULL && m_mode != MODE_YSF)
+			if (m_ysf != NULL && m_mode != MODE_YSF) {
+				m_fixedMode = true;
 				setMode(MODE_YSF);
+			}
 			break;
 		case RCD_MODE_P25:
-			if (m_p25 != NULL && m_mode != MODE_P25)
+			if (m_p25 != NULL && m_mode != MODE_P25) {
+				m_fixedMode = true;
 				setMode(MODE_P25);
+			}
 			break;
 		case RCD_MODE_NXDN:
-			if (m_nxdn != NULL && m_mode != MODE_NXDN)
+			if (m_nxdn != NULL && m_mode != MODE_NXDN) {
+				m_fixedMode = true;
 				setMode(MODE_NXDN);
+			}
 			break;
 		default:
 			break;
diff --git a/MMDVMHost.h b/MMDVMHost.h
index b7d0806de..cc5736ff8 100644
--- a/MMDVMHost.h
+++ b/MMDVMHost.h
@@ -103,6 +103,7 @@ class CMMDVMHost
   std::string     m_lockFileName;
   CMobileGPS*     m_mobileGPS;
   CRemoteControl* m_remoteControl;
+  bool            m_fixedMode;
 
   void readParams();
   bool createModem();