Added halfduplex option for VTX control ports.

src/main/fc/settings.c

@@ -60,6 +60,7 @@
 #include "io/gps.h"
 #include "io/ledstrip.h"
 #include "io/osd.h"
+#include "io/vtx_control.h"
 #include "io/vtx_rtc6705.h"
 
 #include "rx/rx.h"
@@ -715,13 +716,18 @@ const clivalue_t valueTable[] = {
 #endif
     { "pwr_on_arm_grace",           VAR_UINT8  | MASTER_VALUE, .config.minmax = { 0, 30 }, PG_SYSTEM_CONFIG, offsetof(systemConfig_t, powerOnArmingGraceTime) },
 
-// PG_VTX_CONFIG
+// PG_VTX_RTC6705_CONFIG
 #ifdef VTX_RTC6705
     { "vtx_band",                   VAR_UINT8  | MASTER_VALUE, .config.minmax = { 1, 5 }, PG_VTX_RTC6705_CONFIG, offsetof(vtxRTC6705Config_t, band) },
     { "vtx_channel",                VAR_UINT8  | MASTER_VALUE, .config.minmax = { 1, 8 }, PG_VTX_RTC6705_CONFIG, offsetof(vtxRTC6705Config_t, channel) },
     { "vtx_power",                  VAR_UINT8  | MASTER_VALUE, .config.minmax = { 0, RTC6705_POWER_COUNT - 1 }, PG_VTX_RTC6705_CONFIG, offsetof(vtxRTC6705Config_t, power) },
 #endif
 
+// PG_VTX_CONFIG
+#if defined(VTX_CONTROL) && defined(VTX_COMMON)
+    { "vtx_halfduplex",             VAR_UINT8  | MASTER_VALUE | MODE_LOOKUP, .config.lookup = { TABLE_OFF_ON }, PG_VTX_CONFIG, offsetof(vtxConfig_t, halfDuplex) },
+#endif
+
 // PG_VCD_CONFIG
 #ifdef USE_MAX7456
     { "vcd_video_system",           VAR_UINT8   | MASTER_VALUE, .config.minmax = { 0, 2 }, PG_VCD_CONFIG, offsetof(vcdProfile_t, video_system) },

src/main/io/vtx_control.c

@@ -40,7 +40,12 @@
 
 #if defined(VTX_CONTROL) && defined(VTX_COMMON)
 
-PG_REGISTER(vtxConfig_t, vtxConfig, PG_VTX_CONFIG, 1);
+PG_REGISTER_WITH_RESET_TEMPLATE(vtxConfig_t, vtxConfig, PG_VTX_CONFIG, 1);
+
+PG_RESET_TEMPLATE(vtxConfig_t, vtxConfig,
+//    .vtxChannelActivationConditions = { 0 },
+    .halfDuplex = true
+);
 
 static uint8_t locked = 0;
 

src/main/io/vtx_control.h

@@ -30,6 +30,7 @@ typedef struct vtxChannelActivationCondition_s {
 
 typedef struct vtxConfig_s {
     vtxChannelActivationCondition_t vtxChannelActivationConditions[MAX_CHANNEL_ACTIVATION_CONDITION_COUNT];
+    uint8_t halfDuplex;
 } vtxConfig_t;
 
 PG_DECLARE(vtxConfig_t, vtxConfig);

src/main/io/vtx_smartaudio.c

@@ -49,6 +49,7 @@
 #include "flight/pid.h"
 
 #include "io/serial.h"
+#include "io/vtx_control.h"
 #include "io/vtx_smartaudio.h"
 #include "io/vtx_string.h"
 
@@ -622,7 +623,14 @@ bool vtxSmartAudioInit()
 
     serialPortConfig_t *portConfig = findSerialPortConfig(FUNCTION_VTX_SMARTAUDIO);
     if (portConfig) {
-        smartAudioSerialPort = openSerialPort(portConfig->identifier, FUNCTION_VTX_SMARTAUDIO, NULL, 4800, MODE_RXTX, SERIAL_BIDIR|SERIAL_BIDIR_PP);
+        portOptions_e portOptions = 0;
+#if defined(VTX_COMMON)
+        portOptions = portOptions | (vtxConfig()->halfDuplex ? SERIAL_BIDIR | SERIAL_BIDIR_PP : SERIAL_UNIDIR);
+#else
+        portOptions = SERIAL_BIDIR;
+#endif
+
+        smartAudioSerialPort = openSerialPort(portConfig->identifier, FUNCTION_VTX_SMARTAUDIO, NULL, 4800, MODE_RXTX, portOptions);
     }
 
     if (!smartAudioSerialPort) {

src/main/io/vtx_tramp.c

@@ -35,11 +35,10 @@
 #include "drivers/vtx_common.h"
 
 #include "io/serial.h"
+#include "io/vtx_control.h"
 #include "io/vtx_string.h"
 #include "io/vtx_tramp.h"
 
-#define TRAMP_SERIAL_OPTIONS (SERIAL_BIDIR)
-
 #if defined(CMS) || defined(VTX_COMMON)
 const uint16_t trampPowerTable[VTX_TRAMP_POWER_COUNT] = {
     25, 100, 200, 400, 600
@@ -518,7 +517,14 @@ bool vtxTrampInit(void)
     serialPortConfig_t *portConfig = findSerialPortConfig(FUNCTION_VTX_TRAMP);
 
     if (portConfig) {
-        trampSerialPort = openSerialPort(portConfig->identifier, FUNCTION_VTX_TRAMP, NULL, 9600, MODE_RXTX, TRAMP_SERIAL_OPTIONS);
+        portOptions_e portOptions = 0; 
+#if defined(VTX_COMMON)
+        portOptions = portOptions | (vtxConfig()->halfDuplex ? SERIAL_BIDIR : SERIAL_UNIDIR);
+#else
+        portOptions = SERIAL_BIDIR;
+#endif
+
+        trampSerialPort = openSerialPort(portConfig->identifier, FUNCTION_VTX_TRAMP, NULL, 9600, MODE_RXTX, portOptions);
     }
 
     if (!trampSerialPort) {

src/main/target/SPRACINGF3EVO/target.h

@@ -41,6 +41,7 @@
 #undef USE_UNCOMMON_MIXERS
 #endif
 #undef TELEMETRY_JETIEXBUS
+#undef USE_SERIALRX_JETIEXBUS
 
 
 #define CONFIG_FASTLOOP_PREFERRED_ACC ACC_DEFAULT