Add support for onboard LEDs; Fix serial bug

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@43 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 107 insertions, 0 deletions

diff --git a/nuttx/arch/c5471/src/up_leds.c b/nuttx/arch/c5471/src/up_leds.c
new file mode 100644
index 000000000..ee1241ede
--- /dev/null
+++ b/nuttx/arch/c5471/src/up_leds.c
@@ -0,0 +1,107 @@
+/************************************************************
+ * up_leds.c
+ *
+ *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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 Gregory Nutt 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 <sys/types.h>
+#include "up_internal.h"
+
+/************************************************************
+ * Definitions
+ ************************************************************/
+
+#define CS2  *(volatile uint32*)0xffff2e08
+#define LEDS *(volatile uint32*)0x01000000
+
+/************************************************************
+ * Private Data
+ ************************************************************/
+
+static uint32 g_ledstate;
+
+/************************************************************
+ * Private Functions
+ ************************************************************/
+
+/************************************************************
+ * Public Funtions
+ ************************************************************/
+
+/************************************************************
+ * Name: up_ledinit
+ ************************************************************/
+
+#ifdef CONFIG_C5471_LEDS
+void up_ledinit(void)
+{
+  /* Enable acces to LEDs */
+
+  CS2 = 0x000013db;
+
+  /* Turn LED 1-7 off; turn LED 0 on */
+
+  g_ledstate = 0x000000fe;
+  LEDS       = g_ledstate;
+}
+
+/************************************************************
+ * Name: up_ledon
+ ************************************************************/
+
+void up_ledon(int led)
+{
+  if (led < 8)
+    {
+      g_ledstate &= ~(1 << led);
+      LEDS        = g_ledstate;
+    }
+}
+
+/************************************************************
+ * Name: up_ledoff
+ ************************************************************/
+
+void up_ledoff(int led)
+{
+  if (led < 8)
+    {
+      g_ledstate |= (1 << led);
+      LEDS        = g_ledstate;
+    }
+}
+#endif /* CONFIG_C5471_LEDS */