configs/stm32f429i-disco: Add logic to auto-mount procfs. Enable procfs in all configurations that use NSH.

configs/stm32f429i-disco/fb/defconfig

@@ -18,7 +18,6 @@ CONFIG_DRIVERS_VIDEO=y
 CONFIG_EXAMPLES_FB=y
 CONFIG_EXAMPLES_NSH_CXXINITIALIZE=y
 CONFIG_EXAMPLES_NSH=y
-CONFIG_FS_PROCFS_REGISTER=y
 CONFIG_FS_PROCFS=y
 CONFIG_HAVE_CXX=y
 CONFIG_HAVE_CXXINITIALIZE=y

configs/stm32f429i-disco/lcd/defconfig

@@ -21,6 +21,7 @@ CONFIG_EXAMPLES_NSH_CXXINITIALIZE=y
 CONFIG_EXAMPLES_NSH=y
 CONFIG_EXAMPLES_NX_BPP=16
 CONFIG_EXAMPLES_NX=y
+CONFIG_FS_PROCFS=y
 CONFIG_HAVE_CXX=y
 CONFIG_HAVE_CXXINITIALIZE=y
 CONFIG_HEAP2_BASE=0xD0000000

configs/stm32f429i-disco/nsh/defconfig

@@ -15,6 +15,7 @@ CONFIG_DEBUG_SYMBOLS=y
 CONFIG_DISABLE_POLL=y
 CONFIG_EXAMPLES_NSH_CXXINITIALIZE=y
 CONFIG_EXAMPLES_NSH=y
+CONFIG_FS_PROCFS=y
 CONFIG_HAVE_CXX=y
 CONFIG_HAVE_CXXINITIALIZE=y
 CONFIG_HEAP2_BASE=0xD0000000

configs/stm32f429i-disco/src/stm32_bringup.c

@@ -39,6 +39,7 @@
 
 #include <nuttx/config.h>
 
+#include <sys/mount.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <syslog.h>
@@ -80,43 +81,6 @@
 #include "stm32.h"
 #include "stm32f429i-disco.h"
 
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-/* Configuration ************************************************************/
-
-#define HAVE_USBDEV     1
-#define HAVE_USBHOST    1
-#define HAVE_USBMONITOR 1
-
-/* Can't support USB host or device features if USB OTG HS is not enabled */
-
-#ifndef CONFIG_STM32_OTGHS
-#  undef HAVE_USBDEV
-#  undef HAVE_USBHOST
-#  undef HAVE_USBMONITOR
-#endif
-
-/* Can't support USB device monitor if USB device is not enabled */
-
-#ifndef CONFIG_USBDEV
-#  undef HAVE_USBDEV
-#  undef HAVE_USBMONITOR
-#endif
-
-/* Can't support USB host is USB host is not enabled */
-
-#ifndef CONFIG_USBHOST
-#  undef HAVE_USBHOST
-#endif
-
-/* Check if we should enable the USB monitor before starting NSH */
-
-#if !defined(CONFIG_USBDEV_TRACE) || !defined(CONFIG_USBMONITOR)
-#  undef HAVE_USBMONITOR
-#endif
-
 /****************************************************************************
  * Public Functions
  ****************************************************************************/
@@ -147,6 +111,19 @@ int stm32_bringup(void)
 #endif
   int ret;
 
+#ifdef HAVE_PROC
+  /* mount the proc filesystem */
+
+  ret = mount(NULL, CONFIG_NSH_PROC_MOUNTPOINT, "procfs", 0, NULL);
+  if (ret < 0)
+    {
+      syslog(LOG_ERR,
+             "ERROR: Failed to mount the PROC filesystem: %d (%d)\n",
+             ret, errno);
+      return ret;
+    }
+#endif
+
   /* Configure SPI-based devices */
 
 #ifdef CONFIG_STM32_SPI4

configs/stm32f429i-disco/src/stm32f429i-disco.h

@@ -56,6 +56,50 @@
  ****************************************************************************/
 
 /* Configuration ************************************************************/
+
+#define HAVE_PROC       1
+#define HAVE_USBDEV     1
+#define HAVE_USBHOST    1
+#define HAVE_USBMONITOR 1
+
+/* Can't support USB host or device features if USB OTG HS is not enabled */
+
+#ifndef CONFIG_STM32_OTGHS
+#  undef HAVE_USBDEV
+#  undef HAVE_USBHOST
+#  undef HAVE_USBMONITOR
+#endif
+
+/* Can't support USB device monitor if USB device is not enabled */
+
+#ifndef CONFIG_USBDEV
+#  undef HAVE_USBDEV
+#  undef HAVE_USBMONITOR
+#endif
+
+/* Can't support USB host is USB host is not enabled */
+
+#ifndef CONFIG_USBHOST
+#  undef HAVE_USBHOST
+#endif
+
+/* Check if we should enable the USB monitor before starting NSH */
+
+#if !defined(CONFIG_USBDEV_TRACE) || !defined(CONFIG_USBMONITOR)
+#  undef HAVE_USBMONITOR
+#endif
+
+/* Check if we have the procfs file system */
+
+#if !defined(CONFIG_FS_PROCFS)
+#  undef HAVE_PROC
+#endif
+
+#if defined(HAVE_PROC) && defined(CONFIG_DISABLE_MOUNTPOINT)
+#  warning Mountpoints disabled.  No procfs support
+#  undef HAVE_PROC
+#endif
+
 /* How many SPI modules does this chip support? */
 
 #if STM32_NSPI < 1

configs/stm32f429i-disco/usbmsc/defconfig

@@ -16,6 +16,7 @@ CONFIG_DISABLE_POLL=y
 CONFIG_EXAMPLES_NSH_CXXINITIALIZE=y
 CONFIG_EXAMPLES_NSH=y
 CONFIG_FS_FAT=y
+CONFIG_FS_PROCFS=y
 CONFIG_HAVE_CXX=y
 CONFIG_HAVE_CXXINITIALIZE=y
 CONFIG_HEAP2_BASE=0xD0000000

configs/stm32f429i-disco/usbnsh/defconfig

@@ -23,6 +23,7 @@ CONFIG_DISABLE_POLL=y
 CONFIG_EXAMPLES_NSH_CXXINITIALIZE=y
 CONFIG_EXAMPLES_NSH=y
 CONFIG_FS_FAT=y
+CONFIG_FS_PROCFS=y
 CONFIG_HAVE_CXX=y
 CONFIG_HAVE_CXXINITIALIZE=y
 CONFIG_HEAP2_BASE=0xD0000000