Add SPI-based MMC/SD support for lm3s

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1820 42af7a65-404d-4744-a932-0658087f49c3

3 files changed, 164 insertions, 1 deletions

diff --git a/nuttx/examples/nsh/Makefile b/nuttx/examples/nsh/Makefile
index dea17977a..6cfae5161 100644
--- a/nuttx/examples/nsh/Makefile
+++ b/nuttx/examples/nsh/Makefile
@@ -64,6 +64,11 @@ CSRCS	+= nsh_lpc214x.c
 CFLAGS	+= -DCONFIG_EXAMPLES_NSH_ARCHINIT=1
 endif
 
+ifeq ($(CONFIG_ARCH_CHIP),lm3s)
+CSRCS	+= nsh_lm3s.c
+CFLAGS	+= -DCONFIG_EXAMPLES_NSH_ARCHINIT=1
+endif
+
 AOBJS	= $(ASRCS:.S=$(OBJEXT))
 COBJS	= $(CSRCS:.c=$(OBJEXT))
 
diff --git a/nuttx/examples/nsh/nsh_lm3s.c b/nuttx/examples/nsh/nsh_lm3s.c
new file mode 100644
index 000000000..75576bbbe
--- /dev/null
+++ b/nuttx/examples/nsh/nsh_lm3s.c
@@ -0,0 +1,158 @@
+/****************************************************************************
+ * examples/nsh/nsh_lm3s.c
+ *
+ *   Copyright (C) 2009 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 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 <sys/types.h>
+#include <debug.h>
+#include <errno.h>
+
+#include <nuttx/spi.h>
+#include <nuttx/mmcsd.h>
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/* Configuration ************************************************************/
+
+/* PORT and SLOT number probably depend on the board configuration */
+
+#ifdef CONFIG_ARCH_BOARD_EAGLE100
+#  undef CONFIG_EXAMPLES_NSH_HAVEUSBDEV
+#  define CONFIG_EXAMPLES_NSH_HAVEMMCSD  1
+#  if !defined(CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO) || CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO != 0
+#    error "The Eagle100 MMC/SD is on SSI0"
+#    undef CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO
+#    define CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO 0
+#  endif
+#  if !defined(CONFIG_EXAMPLES_NSH_MMCSDSLOTNO) || CONFIG_EXAMPLES_NSH_MMCSDSLOTNO != 0
+#    error "The Eagle100 MMC/SD is on SSI0 slot 0"
+#    undef CONFIG_EXAMPLES_NSH_MMCSDSLOTNO
+#    define CONFIG_EXAMPLES_NSH_MMCSDSLOTNO 0
+#  endif
+#else
+   /* Add configuration for new LPC214x boards here */
+#  error "Unrecognized lm3s board"
+#  undef CONFIG_EXAMPLES_NSH_HAVEUSBDEV
+#  undef CONFIG_EXAMPLES_NSH_HAVEMMCSD
+#endif
+
+/* Can't support USB features if USB is not enabled */
+
+#ifndef CONFIG_USBDEV
+#  undef CONFIG_EXAMPLES_NSH_HAVEUSBDEV
+#endif
+
+/* Can't support MMC/SD features if mountpoints are disabled */
+
+#if defined(CONFIG_DISABLE_MOUNTPOINT)
+#  undef CONFIG_EXAMPLES_NSH_HAVEMMCSD
+#endif
+
+#ifndef CONFIG_EXAMPLES_NSH_MMCSDMINOR
+#  define CONFIG_EXAMPLES_NSH_MMCSDMINOR 0
+#endif
+
+/* Debug ********************************************************************/
+
+#ifdef CONFIG_CPP_HAVE_VARARGS
+#  ifdef CONFIG_DEBUG
+#    define message(...) lib_lowprintf(__VA_ARGS__)
+#  else
+#    define message(...) printf(__VA_ARGS__)
+#  endif
+#else
+#  ifdef CONFIG_DEBUG
+#    define message lib_lowprintf
+#  else
+#    define message printf
+#  endif
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nsh_archinitialize
+ *
+ * Description:
+ *   Perform architecture specific initialization
+ *
+ ****************************************************************************/
+
+int nsh_archinitialize(void)
+{
+  FAR struct spi_dev_s *spi;
+  int ret;
+
+  /* Get the SPI port */
+
+  message("nsh_archinitialize: Initializing SPI port %d\n",
+          CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO);
+
+  spi = up_spiinitialize(CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO);
+  if (!spi)
+    {
+      message("nsh_archinitialize: Failed to initialize SPI port %d\n",
+              CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO);
+      return -ENODEV;
+    }
+
+  message("nsh_archinitialize: Successfully initialized SPI port %d\n",
+          CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO);
+
+  /* Bind the SPI port to the slot */
+
+  message("nsh_archinitialize: Binding SPI port %d to MMC/SD slot %d\n",
+          CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO, CONFIG_EXAMPLES_NSH_MMCSDSLOTNO);
+
+  ret = mmcsd_spislotinitialize(CONFIG_EXAMPLES_NSH_MMCSDMINOR, CONFIG_EXAMPLES_NSH_MMCSDSLOTNO, spi);
+  if (ret < 0)
+    {
+      message("nsh_archinitialize: Failed to bind SPI port %d to MMC/SD slot %d: %d\n",
+              CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO, CONFIG_EXAMPLES_NSH_MMCSDSLOTNO, ret);
+      return ret;
+    }
+
+  message("nsh_archinitialize: Successfuly bound SPI port %d to MMC/SD slot %d\n",
+          CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO, CONFIG_EXAMPLES_NSH_MMCSDSLOTNO);
+  return OK;
+}
diff --git a/nuttx/examples/nsh/nsh_lpc214x.c b/nuttx/examples/nsh/nsh_lpc214x.c
index 0b49a3f1d..487d3e03f 100644
--- a/nuttx/examples/nsh/nsh_lpc214x.c
+++ b/nuttx/examples/nsh/nsh_lpc214x.c
@@ -128,7 +128,7 @@ int nsh_archinitialize(void)
   message("nsh_archinitialize: Initializing SPI port %d\n",
           CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO);
 
-  spi = up_spiinitialize(1);
+  spi = up_spiinitialize(CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO);
   if (!spi)
     {
       message("nsh_archinitialize: Failed to initialize SPI port %d\n",