Cross Remote: Use firmware's IR settings

cross_remote/xremote.c

@@ -1,5 +1,7 @@
 #include "xremote.h"
 
+#include <infrared/infrared_settings.h>
+
 bool xremote_custom_event_callback(void* context, uint32_t event) {
     furi_assert(context);
     XRemote* app = context;
@@ -203,8 +205,37 @@ int32_t xremote_app(void* p) {
 
     furi_hal_power_suppress_charge_enter();
 
+    bool otg_was_enabled = furi_hal_power_is_otg_enabled();
+    InfraredSettings settings = {0};
+    infrared_settings_load(&settings);
+    if(settings.tx_pin < FuriHalInfraredTxPinMax) {
+        furi_hal_infrared_set_tx_output(settings.tx_pin);
+        if(settings.otg_enabled != otg_was_enabled) {
+            if(settings.otg_enabled) {
+                furi_hal_power_enable_otg();
+            } else {
+                furi_hal_power_disable_otg();
+            }
+        }
+    } else {
+        FuriHalInfraredTxPin tx_pin_detected = furi_hal_infrared_detect_tx_output();
+        furi_hal_infrared_set_tx_output(tx_pin_detected);
+        if(tx_pin_detected != FuriHalInfraredTxPinInternal) {
+            furi_hal_power_enable_otg();
+        }
+    }
+
     view_dispatcher_run(app->view_dispatcher);
 
+    furi_hal_infrared_set_tx_output(FuriHalInfraredTxPinInternal);
+    if(furi_hal_power_is_otg_enabled() != otg_was_enabled) {
+        if(otg_was_enabled) {
+            furi_hal_power_enable_otg();
+        } else {
+            furi_hal_power_disable_otg();
+        }
+    }
+
     xremote_save_settings(app);
 
     furi_hal_power_suppress_charge_exit();