Add NXP LPC214x-specific NSH support

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1044 42af7a65-404d-4744-a932-0658087f49c3

5 files changed, 187 insertions, 2 deletions

diff --git a/nuttx/examples/nsh/Makefile b/nuttx/examples/nsh/Makefile
index b8fa7ae73..30f3408cc 100644
--- a/nuttx/examples/nsh/Makefile
+++ b/nuttx/examples/nsh/Makefile
@@ -59,6 +59,11 @@ ifneq ($(CONFIG_EXAMPLES_NSH_DISABLESCRIPT),y)
 CSRCS	+= nsh_test.c
 endif
 
+ifeq ($(CONFIG_ARCH_CHIP),lpc214x)
+CSRCS	+= nsh_lpc214x.c
+CFLAGS	+= -DCONFIG_EXAMPLES_NSH_ARCHINIT=1
+endif
+
 AOBJS	= $(ASRCS:.S=$(OBJEXT))
 COBJS	= $(CSRCS:.c=$(OBJEXT))
 
diff --git a/nuttx/examples/nsh/README.txt b/nuttx/examples/nsh/README.txt
index c2182e91d..f1236ff45 100644
--- a/nuttx/examples/nsh/README.txt
+++ b/nuttx/examples/nsh/README.txt
@@ -760,6 +760,13 @@ NSH-Specific Configuration Settings
       where a minimal footprint is a necessity and background command
       execution is not.
 
+  * CONFIG_EXAMPLES_NSH_MMCSDMINOR
+      If the architecture supports an MMC/SD slot and if the NSH
+      architecture specific logic is present, this option will provide
+      the MMC/SD minor number, i.e., the MMC/SD block driver will
+      be registered as /dev/mmcsdN where N is the minor number.
+      Default is zero.
+
   * CONFIG_EXAMPLES_NSH_ROMFSETC
       Mount a ROMFS filesystem at /etc and provide a startup script
       at /etc/init.d/rcS.  The default startup script will mount
diff --git a/nuttx/examples/nsh/nsh.h b/nuttx/examples/nsh/nsh.h
index b98cec49b..c4374198f 100644
--- a/nuttx/examples/nsh/nsh.h
+++ b/nuttx/examples/nsh/nsh.h
@@ -284,11 +284,22 @@ extern const char g_fmtinternalerror[];
 
 #ifdef CONFIG_EXAMPLES_NSH_ROMFSETC
 extern int nsh_romfsetc(void);
+#else
+#  define nsh_romfsetc() (-ENOSYS)
 #endif
+
 #if CONFIG_NFILE_DESCRIPTORS > 0 && CONFIG_NFILE_STREAMS > 0 && !defined(CONFIG_EXAMPLES_NSH_DISABLESCRIPT)
 extern int nsh_script(FAR struct nsh_vtbl_s *vtbl, const char *cmd, const char *path);
 #endif
 
+/* Architecture-specific initialization */
+
+#ifdef CONFIG_EXAMPLES_NSH_ARCHINIT
+extern int nsh_archinitialize(void);
+#else
+#  define nsh_archinitialize() (-ENOSYS)
+#endif
+
 /* Message handler */
 
 extern int nsh_parse(FAR struct nsh_vtbl_s *vtbl, char *cmdline);
diff --git a/nuttx/examples/nsh/nsh_lpc214x.c b/nuttx/examples/nsh/nsh_lpc214x.c
new file mode 100644
index 000000000..8d715db77
--- /dev/null
+++ b/nuttx/examples/nsh/nsh_lpc214x.c
@@ -0,0 +1,160 @@
+/****************************************************************************
+ * examples/nsh/nsh_lpc214x.c
+ *
+ *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * This logic emulates the Prolific PL2303 serial/USB converter
+ *
+ * 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_MCU123
+#  define CONFIG_EXAMPLES_NSH_HAVEUSBDEV 1
+#  define CONFIG_EXAMPLES_NSH_HAVEMMCSD  1
+#  if !defined(CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO) || CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO != 1
+#    error "The LPC214x MMC/SD is on SPI1"
+#    undef CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO
+#    define CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO 1
+#  endif
+#  if !defined(CONFIG_EXAMPLES_NSH_MMCSDSLOTNO) || CONFIG_EXAMPLES_NSH_MMCSDSLOTNO != 0
+#    error "The LPC214x MMC/SD is on SPI1"
+#    undef CONFIG_EXAMPLES_NSH_MMCSDSLOTNO
+#    define CONFIG_EXAMPLES_NSH_MMCSDSLOTNO 0
+#  endif
+#else
+   /* Add configuration for new LPC214x boards here */
+#  error "Unrecognized LPC214x 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(1);
+  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_main.c b/nuttx/examples/nsh/nsh_main.c
index 6acf48d53..7579c9fa3 100644
--- a/nuttx/examples/nsh/nsh_main.c
+++ b/nuttx/examples/nsh/nsh_main.c
@@ -856,9 +856,11 @@ int user_start(int argc, char *argv[])
 
   /* Mount the /etc filesystem */
 
-#ifdef CONFIG_EXAMPLES_NSH_ROMFSETC
   (void)nsh_romfsetc();
-#endif
+
+  /* Perform architecture-specific initialization (if available) */
+
+  (void)nsh_archinitialize();
 
   /* Set the priority of this task to something in the middle so that 'nice'
    * can both raise and lower the priority.