1 files changed, 203 insertions, 0 deletions
diff --git a/nuttx/graphics/nxconsole/nxcon_putc.c b/nuttx/graphics/nxconsole/nxcon_putc.c
new file mode 100644
index 000000000..d51d79c79
--- /dev/null
+++ b/nuttx/graphics/nxconsole/nxcon_putc.c
@@ -0,0 +1,203 @@
+/****************************************************************************
+ * nuttx/graphics/nxconsole/nxcon_putc.c
+ *
+ *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <nuttx/ascii.h>
+
+#include "nxcon_internal.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nxcon_putc
+ *
+ * Description:
+ *   Render the specified character at the current display position.
+ *
+ ****************************************************************************/
+
+void nxcon_putc(FAR struct nxcon_state_s *priv, uint8_t ch)
+{
+  FAR const struct nxcon_bitmap_s *bm;
+  int lineheight;
+
+  /* Ignore carriage returns */
+
+  if (ch == '\r')
+    {
+      return;
+    }
+
+  /* Handle backspace (treating both BS and DEL as backspace) */
+
+  if (ch == ASCII_BS || ch == ASCII_DEL)
+    {
+      nxcon_backspace(priv);
+      return;
+    }
+
+  /* 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 (ch == '\n')
+        {
+          return;
+        }
+#else
+      /* No.. Ignore all further characters until a newline is encountered */
+
+      if (ch != '\n')
+        {
+          return;
+        }
+#endif
+    }
+
+  /* If it is a newline character, then just perform the logical newline
+   * operation.
+   */
+
+  if (ch == '\n')
+    {
+      nxcon_newline(priv);
+      return;
+    }
+
+  /* Check if we need to scroll up */
+
+  lineheight = (priv->fheight + CONFIG_NXCONSOLE_LINESEPARATION);
+  while (priv->fpos.y >= priv->wndo.wsize.h - lineheight)
+    {
+      nxcon_scroll(priv, lineheight);
+    }
+
+  /* Find the glyph associated with the character and render it onto the
+   * display.
+   */
+
+  bm = nxcon_addchar(priv->font, priv, ch);
+  if (bm)
+    {
+      nxcon_fillchar(priv, NULL, bm);
+    }
+}
+
+/****************************************************************************
+ * Name: nxcon_showcursor
+ *
+ * Description:
+ *   Render the cursor character at the current display position.
+ *
+ ****************************************************************************/
+
+void nxcon_showcursor(FAR struct nxcon_state_s *priv)
+{
+  int lineheight;
+
+  /* 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);
+#else
+      return;
+#endif
+    }
+
+  /* Check if we need to scroll up */
+
+  lineheight = (priv->fheight + CONFIG_NXCONSOLE_LINESEPARATION);
+  while (priv->fpos.y >= priv->wndo.wsize.h - lineheight)
+    {
+      nxcon_scroll(priv, lineheight);
+    }
+
+  /* Render the cursor glyph onto the display. */
+
+  priv->cursor.pos.x = priv->fpos.x;
+  priv->cursor.pos.y = priv->fpos.y;
+  nxcon_fillchar(priv, NULL, &priv->cursor);
+}
+
+/****************************************************************************
+ * Name: nxcon_hidecursor
+ *
+ * Description:
+ *   Render the cursor cursor character from the display.
+ *
+ ****************************************************************************/
+
+void nxcon_hidecursor(FAR struct nxcon_state_s *priv)
+{
+  (void)nxcon_hidechar(priv, &priv->cursor);
+}