Kconfig updates

git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4608 7fd9a85b-ad96-42d3-883c-3090e2eb8679

apps/nshlib/Kconfig

@@ -3,6 +3,14 @@
 # see misc/tools/kconfig-language.txt.
 #
 
+config NSH_LIBRARY
+	bool "NSH Library"
+	default n
+	---help---
+		Build the NSH support library.  This is used, for example, by examples/nsh
+		in order to implement the full NuttShell (NSH).
+
+if NSH_LIBRARY
 config NSH_BUILTIN_APPS
 	bool "Enable built-in applications"
 	default y
@@ -11,7 +19,7 @@ config NSH_BUILTIN_APPS
 		executed from the NSH command line (see apps/README.txt for
 		more information).
 
-menu "Disable Commands"
+menu "Disable Individual commands"
 config NSH_DISABLE_CAT
 	bool "Disable cat"
 	default n
@@ -190,6 +198,8 @@ config NSH_ROMFSETC
 		at /etc/init.d/rcS.  The default startup script will mount
 		a FAT FS RAMDISK at /tmp but the logic is easily extensible.
 
+endif
+
 if NSH_ROMFSETC
 config NSH_ROMFSMOUNTPT
 	string "ROMFS mount point"
@@ -257,6 +267,7 @@ config NSH_FATMOUNTPT
 		FS will be mounted.  Default is /tmp.
 endif
 
+if NSH_LIBRARY
 config NSH_CONSOLE
 	bool "Use console"
 	default y
@@ -314,6 +325,8 @@ config NSH_TELNET
 		you may log into NuttX remotely using telnet in order to
 		access NSH.
 
+endif
+
 if NSH_TELNET
 config NSH_TELNETD_PORT
 	int "Telnet port number"
@@ -357,17 +370,17 @@ endif
 config NSH_DHCPC
 	bool "Use DHCP to get IP address"
 	default n
-	depends on NET && NET_UDP && NET_BROADCAST
+	depends on NSH_LIBRARY && NET && NET_UDP && NET_BROADCAST
 	---help---
 		Obtain the IP address via DHCP.
 
 		Per RFC2131 (p. 9), the DHCP client must be prepared to receive DHCP
 		messages of up to 576 bytes (excluding Ethernet, IP, or UDP headers and FCS).
 
-if !NSH_DHCPC
 config NSH_IPADDR
 	hex "Target IP address"
 	default 0x10000002
+	depends on NSH_LIBRARY && NET && !NSH_DHCPC
 	---help---
 		If NSH_DHCPC is NOT set, then the static IP address must be provided.
 		This is a 32-bit integer value in host order.  So, as an example,
@@ -376,6 +389,7 @@ config NSH_IPADDR
 config NSH_DRIPADDR
 	hex "Router IP address"
 	default 0x10000001
+	depends on NSH_LIBRARY && NET && !NSH_DHCPC
 	---help---
 		Default router IP address (aka, Gateway).  This is a 32-bit integer
 		value in host order.  So, as an example, 0x10000001 would be 10.0.0.1.
@@ -383,15 +397,15 @@ config NSH_DRIPADDR
 config NSH_NETMASK
 	hex "Network mask"
 	default 0xffffff00
+	depends on NSH_LIBRARY && NET && !NSH_DHCPC
 	---help---
 		Network mask.  This is a 32-bit integer value in host order.  So, as
 		an example, 0xffffff00 would be 255.255.255.0.
-endif
 
 config NSH_NOMAC
 	bool "Hardware has no MAC address"
 	default n
-	depends on NET
+	depends on NSH_LIBRARY && NET
 	---help---
 		Set if your ethernet hardware has no built-in MAC address.
 		If set, a bogus MAC will be assigned.

nuttx/drivers/Kconfig

@@ -3,6 +3,8 @@
 # see misc/tools/kconfig-language.txt.
 #
 
+comment "Device Driver Configuration"
+
 config DEV_NULL
 	bool "Enable /dev/null"
 	default y

nuttx/fs/Kconfig

@@ -4,6 +4,7 @@
 #
 
 comment "File system configuration"
+
 source fs/fat/Kconfig
 source fs/mmap/Kconfig
 source fs/nfs/Kconfig

nuttx/fs/fat/Kconfig

@@ -3,9 +3,6 @@
 # see misc/tools/kconfig-language.txt.
 #
 
-menu "FAT file system configuration"
-comment "FAT file system configuration"
-
 config FS_FAT
 	bool "FAT file system"
 	default n
@@ -56,4 +53,3 @@ config FS_FATTIME
 		hardware RTC or other way to get the time and date.
 
 endif
-endmenu

nuttx/fs/mmap/Kconfig

@@ -3,4 +3,25 @@
 # see misc/tools/kconfig-language.txt.
 #
 
-comment "File mapping emulation"
+config FS_RAMMAP
+	bool "File mapping emulation"
+	default n
+	---help---
+		NuttX operates in a flat open address space and is focused on MCUs that do
+		support Memory Management Units (MMUs).  Therefore, NuttX generally does not
+		require mmap() functionality and the MCUs generally cannot support true
+		memory-mapped files.
+
+		However, memory mapping of files is the mechanism used by NXFLAT, the NuttX
+		tiny binary format, to get files into memory in order to execute them.
+		mmap() support is therefore required to support NXFLAT.
+
+		If FS_RAMMAP is defined in the configuration, then mmap() will
+		support simulation of memory mapped files by copying files whole
+		into RAM.  These copied files have some of the properties of
+		standard memory mapped files.
+
+		See nuttx/fs/mmap/README.txt for additonal information.
+
+if FS_RAMMAP
+endif

nuttx/fs/nfs/Kconfig

@@ -3,4 +3,28 @@
 # see misc/tools/kconfig-language.txt.
 #
 
-comment "Network file system (NFS) client file system"
+config NFS
+	bool "NFS client file system"
+	default n
+	depends on NET && !DISABLE_MOUNTPOINT
+	---help---
+		Enable network file system (NFS) client file system
+
+#if NFS
+
+config NFS_TCPIP
+	bool "TCP/IP RPC support"
+	default n
+	depends on NFS
+	---help---
+		By default, NFS uses a UDP RPC protocol.  Enable this option to
+		build in support for a TCP/IP-based RPC.
+
+config NFS_UNIX_AUTH
+	bool "NFS Unix authentication"
+	default n
+	depends on NFS
+	---help---
+		Build in support for Unix-style authentication.
+
+#endif

nuttx/fs/nxffs/Kconfig

@@ -3,9 +3,6 @@
 # see misc/tools/kconfig-language.txt.
 #
 
-menu "NXFFS file system configuration"
-comment "NXFFS file system configuration"
-
 config FS_NXFFS
 	bool "NXFFS file system"
 	default n
@@ -52,4 +49,3 @@ config NXFFS_TAILTHRESHOLD
 		Default: 8192.
 
 endif
-endmenu

nuttx/fs/romfs/Kconfig

@@ -3,4 +3,12 @@
 # see misc/tools/kconfig-language.txt.
 #
 
-comment "ROMFS file system"
+config FS_ROMFS
+	bool "ROMFS file system"
+	default n
+	depends on !DISABLE_MOUNTPOINT
+	---help---
+		Enable ROMFS filesystem support
+
+if FS_ROMFS
+endif

nuttx/net/Kconfig

@@ -133,6 +133,12 @@ config NET_UDP_CONNS
 	---help---
 		The maximum amount of open concurrent UDP sockets
 
+config NET_BROADCAST
+	bool "UDP broadcast Rx support"
+	default n
+	---help---
+		Incoming UDP broadcast support
+
 endif
 
 config NET_ICMP
@@ -202,18 +208,6 @@ config NET_ARP_IPIN
 		Harvest IP/MAC address mappings from the ARP table
 		from incoming IP packets.
 
-endif
-if NET_UDP
-
-config NET_BROADCAST
-	bool "UDP broadcast Rx support"
-	default n
-	---help---
-		Incoming UDP broadcast support
-
-endif
-if NET
-
 config NET_MULTICAST
 	bool "Multi-cast Tx support"
 	default n