intermediate commit: do not merge

first step towards dynamic rx/tx swap for CRSF RX serial

Author: wimalopaan

src/main/config/parameter_group_ids.h

@@ -132,7 +132,8 @@
 #define PG_GEOZONE_CONFIG 1042
 #define PG_GEOZONES 1043
 #define PG_GEOZONE_VERTICES 1044
-#define PG_INAV_END PG_GEOZONE_VERTICES
+#define PG_CRSFRXPORT_CONFIG 1045
+#define PG_INAV_END PG_CRSFRXPORT_CONFIG 
 
 // OSD configuration (subject to change)
 //#define PG_OSD_FONT_CONFIG 2047

src/main/fc/config.c

@@ -131,6 +131,13 @@ PG_RESET_TEMPLATE(beeperConfig_t, beeperConfig,
                   .pwmMode = SETTING_BEEPER_PWM_MODE_DEFAULT,
 );
 
+PG_REGISTER_WITH_RESET_TEMPLATE(crsfRxPortConfig_t, crsfRxPortConfig, PG_CRSFRXPORT_CONFIG, 1);
+
+PG_RESET_TEMPLATE(crsfRxPortConfig_t, crsfRxPortConfig,
+                  .swap = 0,
+                  .preferred_swap = 0
+);
+
 PG_REGISTER_WITH_RESET_TEMPLATE(adcChannelConfig_t, adcChannelConfig, PG_ADC_CHANNEL_CONFIG, 0);
 
 PG_RESET_TEMPLATE(adcChannelConfig_t, adcChannelConfig,

src/main/fc/config.h

@@ -94,6 +94,13 @@ typedef struct beeperConfig_s {
 
 PG_DECLARE(beeperConfig_t, beeperConfig);
 
+typedef struct CrsfRxPortConfig_s {
+    bool swap;
+    bool preferred_swap;
+} crsfRxPortConfig_t;
+
+PG_DECLARE(crsfRxPortConfig_t, crsfRxPortConfig);
+
 typedef struct adcChannelConfig_s {
     uint8_t adcFunctionChannel[ADC_FUNCTION_COUNT];
 } adcChannelConfig_t;

src/main/fc/settings.yaml

@@ -4249,6 +4249,16 @@ groups:
         default_value: OFF
         description: "Allows disabling PWM mode for beeper on some targets. Switch from ON to OFF if the external beeper sound is weak. Do not switch from OFF to ON without checking if the board supports PWM beeper mode"
 
+  - name: PG_CRSFRXPORT_CONFIG
+    type: crsfRxPortConfig_t
+    headers: [ "fc/config.h" ]
+    members:
+      - name: crsf_rx_swap
+        field: swap
+        type: bool
+        default_value: OFF
+        description: "Swaps rx/tx for CRSF RX uart"
+
   - name: PG_POWER_LIMITS_CONFIG
     type: powerLimitsConfig_t
     headers: ["flight/power_limits.h"]