Fix get/set_xit for Yaesu rigs to avoid vfo swapping

Fix get_xit to return VFOA/B appropriately
THe IF/OI commands apparently always return VFOA/B respectively so vfo swapping is not needed to read info
https://github.com/Hamlib/Hamlib/issues/430

rigs/yaesu/newcat.c

@@ -1170,6 +1170,29 @@ int newcat_set_vfo(RIG *rig, vfo_t vfo)
     return RIG_OK;
 }
 
+// Either returns a valid RIG_VFO* or if < 0 an error code
+static vfo_t newcat_set_vfo_if_needed(RIG *rig, vfo_t vfo)
+{
+    vfo_t oldvfo = rig->state.current_vfo;
+
+    rig_debug(RIG_DEBUG_TRACE, "%s: vfo=%s, oldvfo=%s\n", __func__, rig_strvfo(vfo),
+              rig_strvfo(oldvfo));
+
+    if (oldvfo != vfo)
+    {
+        int ret;
+        ret = newcat_set_vfo(rig, vfo);
+
+        if (ret != RIG_OK)
+        {
+            rig_debug(RIG_DEBUG_ERR, "%s: error setting vfo=%s\n", __func__,
+                      rig_strvfo(vfo));
+            return ret;
+        }
+    }
+
+    return oldvfo;
+}
 
 /*
  * rig_get_vfo
@@ -1731,11 +1754,9 @@ int newcat_get_split_vfo(RIG *rig, vfo_t vfo, split_t *split, vfo_t *tx_vfo)
     return RIG_OK;
 }
 
-
 int newcat_set_rit(RIG *rig, vfo_t vfo, shortfreq_t rit)
 {
     struct newcat_priv_data *priv = (struct newcat_priv_data *)rig->state.priv;
-    int vfo_swap = 0;
     vfo_t oldvfo;
     int ret;
 
@@ -1744,19 +1765,9 @@ int newcat_set_rit(RIG *rig, vfo_t vfo, shortfreq_t rit)
         return -RIG_ENAVAIL;
     }
 
-    if (rig->state.current_vfo != vfo)
-    {
-        oldvfo = rig->state.current_vfo;
-        ret = newcat_set_vfo(rig, vfo);
+    oldvfo = newcat_set_vfo_if_needed(rig, vfo);
 
-        if (ret != RIG_OK)
-        {
-            rig_debug(RIG_DEBUG_ERR, "%s: error setting vfo=%s\n", __func__,
-                      rig_strvfo(vfo));
-        }
-
-        vfo_swap = 1;
-    }
+    if (oldvfo < 0) { return oldvfo; }
 
     if (rit > rig->caps->max_rit)
     {
@@ -1785,16 +1796,9 @@ int newcat_set_rit(RIG *rig, vfo_t vfo, shortfreq_t rit)
 
     ret = newcat_set_cmd(rig);
 
-    if (vfo_swap)
-    {
-        newcat_set_vfo(rig, oldvfo);
+    oldvfo = newcat_set_vfo_if_needed(rig, oldvfo);
 
-        if (ret != RIG_OK)
-        {
-            rig_debug(RIG_DEBUG_ERR, "%s: error setting vfo=%s\n", __func__,
-                      rig_strvfo(vfo));
-        }
-    }
+    if (oldvfo < 0) { return oldvfo; }
 
     return ret;
 }
@@ -1865,12 +1869,18 @@ int newcat_get_rit(RIG *rig, vfo_t vfo, shortfreq_t *rit)
 int newcat_set_xit(RIG *rig, vfo_t vfo, shortfreq_t xit)
 {
     struct newcat_priv_data *priv = (struct newcat_priv_data *)rig->state.priv;
+    vfo_t oldvfo;
+    int ret;
 
     if (!newcat_valid_command(rig, "XT"))
     {
         return -RIG_ENAVAIL;
     }
 
+    oldvfo = newcat_set_vfo_if_needed(rig, vfo);
+
+    if (oldvfo < 0) { return oldvfo; }
+
     if (xit > rig->caps->max_xit)
     {
         xit = rig->caps->max_xit;    /* + */
@@ -1897,7 +1907,13 @@ int newcat_set_xit(RIG *rig, vfo_t vfo, shortfreq_t xit)
                  labs(xit), cat_term);
     }
 
-    return newcat_set_cmd(rig);
+    ret = newcat_set_cmd(rig);
+
+    oldvfo = newcat_set_vfo_if_needed(rig, vfo);
+
+    if (oldvfo < 0) { return oldvfo; }
+
+    return ret;
 }
 
 
@@ -1907,8 +1923,14 @@ int newcat_get_xit(RIG *rig, vfo_t vfo, shortfreq_t *xit)
     char *retval;
     int err;
     int offset = 0;
+    char *cmd = "IF";
 
-    if (!newcat_valid_command(rig, "IF"))
+    if (vfo == RIG_VFO_B || vfo == RIG_VFO_SUB)
+    {
+        cmd = "OI";
+    }
+
+    if (!newcat_valid_command(rig, cmd))
     {
         return -RIG_ENAVAIL;
     }
@@ -1917,7 +1939,7 @@ int newcat_get_xit(RIG *rig, vfo_t vfo, shortfreq_t *xit)
 
     rig_debug(RIG_DEBUG_VERBOSE, "%s called\n", __func__);
 
-    snprintf(priv->cmd_str, sizeof(priv->cmd_str), "%s%c", "IF", cat_term);
+    snprintf(priv->cmd_str, sizeof(priv->cmd_str), "%s%c", cmd, cat_term);
 
     rig_debug(RIG_DEBUG_TRACE, "%s: cmd_str = %s\n", __func__, priv->cmd_str);
 

rigs/yaesu/newcat.h

@@ -50,7 +50,7 @@
 typedef char ncboolean;
 
 /* shared function version */
-#define NEWCAT_VER "20201102"
+#define NEWCAT_VER "20201103"
 
 /* Hopefully large enough for future use, 128 chars plus '\0' */
 #define NEWCAT_DATA_LEN                 129