Add a test for the NX console device

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4528 42af7a65-404d-4744-a932-0658087f49c3

graphics/nxconsole/nxcon_driver.c

@@ -138,21 +138,37 @@ static ssize_t nxcon_write(FAR struct file *filep, FAR const char *buffer,
 
   while (buflen-- > 0)
     {
+      /* Ignore carriage returns */
+
+      ch = *buffer++;
+      if (ch == '\r')
+        {
+          continue;
+        }
+
       /* Will another character fit on this line? */
 
       if (priv->fpos.x + priv->fwidth > priv->wndo.wsize.w)
         {
+#ifndef CONFIG_NXCONSOLE_NOWRAP
           /* No.. move to the next line */
 
           nxcon_newline(priv);
 
           /* If we were about to output a newline character, then don't */
 
-          if (*buffer == '\n')
+          if (ch == '\n')
             {
-              buffer++;
               continue;
             }
+#else
+          /* No.. Ignore all further characters until a newline is encountered */
+
+          if (ch != '\n')
+            {
+              continue;
+            }
+#endif
         }
 
       /* Check if we need to scroll up (handling a corner case where
@@ -164,16 +180,10 @@ static ssize_t nxcon_write(FAR struct file *filep, FAR const char *buffer,
           nxcon_scroll(priv, lineheight);
         }
 
-      /* Ignore carriage returns */
-
-      ch = *buffer++;
-      if (ch != '\r')
-        {
       /* Finally, we can output the character */
 
       nxcon_putc(priv, (uint8_t)ch);
     }
-    }
 
   return buflen;
 }

include/nuttx/nx/nxconsole.h

@@ -171,6 +171,28 @@ EXTERN NXCONSOLE nxtool_register(NXTKWINDOW hfwnd,
 
 EXTERN void nxcon_unregister(NXCONSOLE handle);
 
+/****************************************************************************
+ * Name: nxcon_redraw
+ *
+ * Description:
+ *   Re-draw a portion of the NX console.  This function should be called
+ *   from the appropriate window callback logic.
+ *
+ * Input Parameters:
+ *   handle - A handle previously returned by nx_register, nxtk_register, or
+ *     nxtool_register.
+ *   rect - The rectangle that needs to be re-drawn (in window relative
+ *          coordinates)
+ *   more - true:  More re-draw requests will follow
+ *
+ * Returned Value:
+ *   None
+ *
+ ****************************************************************************/
+
+EXTERN void nxcon_redraw(NXCONSOLE handle, FAR const struct nxgl_rect_s *rect,
+                         bool more);
+
 #undef EXTERN
 #if defined(__cplusplus)
 }