Verified basic client-side network functionality

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@373 42af7a65-404d-4744-a932-0658087f49c3

ChangeLog

@@ -148,7 +148,7 @@
 	* Fixed ARM compilation errors introduced in 0.2.5 (that is what I get
 	  for only testing on the simulation).
 
-0.2.7 2007-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
+0.2.7 2007-06-09 Gregory Nutt <spudmonkey@racsa.co.cr>
 
 	* Added stat() to fs layer and to FAT
 	* Fixed reference counting errors associated with mounted filesystems
@@ -169,12 +169,53 @@
 	* Restructured some Makefiles to better handle enabling and disabling
 	  NuttX features without having so much conditional compilation in the
 	  source files.
-	* tools/mkconfig.c: No long depends on asprintf() and _GNU_SOURCE and
+	* tools/mkconfig.c: No longer depends on asprintf() and _GNU_SOURCE and
 	  so should now build in non-GNU, non-GLIBC environments.
 	* include/nuttx/compiler.h: Fix for using SDCC with the Z80.
 	* include/assert.h & arch/pjrc-8051/src/up_assert.c: SDCC does support
 	  __FILE__and __LINE__ (not tested)
 	* examples/ostest/barrier.c: Don't call usleep() when signals are
 	  disabled.
-	* Started m68322
+
+0.2.8 2007-07-02 Gregory Nutt <spudmonkey@racsa.co.cr>
+	* tools/Makefile.mkconfig: Under Cygwin, executable has a different name
+	* tools/mkdeps.sh & arch/arm/src/Makefile: Corrected a problem makeing dependencies
+	* tools/zipme.sh: Force directory name to be nuttx-xx.yy.zz
+	* fs/fs_opendir.c: Correct errors in semaphore usage that can cause deadlock.
+	* lib/lib_getopt.c: Added getopt() support
+	* examples/nsh/:  NSH now supports cat, mount, umount, and mkdir.  ls supports
+	  -l -s, and -R
+	* Added basic OS support to manage environment variables:  environment
+	  storage, cloning on task creation, sharing on pthread creation, destruction
+	  on thread/task exit.
+	* Add environment variables APIs:  environ, getenv, putenv, clearenv, setenv,
+	  unsetenv
+	* Correct an error in realloc() when the block is extended "down" in memory.
+	  In this case, the old memory contents need to be copied to the new location
+	  and an allocated bit was not being set.
+	* examples/ostest/: Added an environment variable test.
+	* examples/nsh/: Break into several files.
+	* lib/: Added strrchr, basename, dirname
+	* examples/nsh/: Add cp, rm, rmdir, set, unset commands. echo will now print
+	  environment variables.
+
+0.3.0 2007-11-06 Gregory Nutt <spudmonkey@racsa.co.cr>
+
+	* Imported uIP into the tree (see
+	   http://www.sics.se/~adam/uip/index.php/Main_Page)
+	* Adding socket(), bind(), connect()
+	* Added snprintf()
+	* Added send() and sendto(); integrate write() and close() with socket descriptors.
+        * Added recv() and recvfrom().
+	* Added getsockopt() and setsockopt()
+	* Documentation updated to address socket interfaces.
+	* Implemented receive timeouts via setsockopt(SO_RCVTIMEO).
+	* Provide support for multiple network devices
+	* Implement socket ioctl() calls to set addresses
+	* Added listen() and accept()
+	* Added DM90x0 ethernet driver
+	* ARP timer is now built into the network layer
+	* Basic client functionality verified: socket(), bind(), connect(), recv(), send().
+
+0.3.1 2007-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
 

Documentation/NuttX.html

@@ -8,7 +8,7 @@
   <tr align="center" bgcolor="#e4e4e4">
     <td>
       <h1><big><font color="#3c34ec"><i>NuttX RTOS</i></font></big></h1>
-      <p>Last Updated: June 9, 2007</p>
+      <p>Last Updated: November 6, 2007</p>
     </td>
   </tr>
 </table>
@@ -183,13 +183,28 @@
 </table>
 
 <p>
-   The 10th release of NuttX (nuttx-0.2.7) is available for download
+   The 12th release of NuttX (nuttx-0.3.0) is available for download
    from the <a href="http://sourceforge.net/project/showfiles.php?group_id=189573">SourceForge</a>
    website.
    The change log associated with the release is available <a href="#currentrelease">here</a>.
    Unreleased changes after this release are avalable in CVS.
    These unreleased changes are listed <a href="#pendingchanges">here</a>.
 </p>
+<p>
+   NuttX 30.3.0 includes the initial integration of a network subsystem and
+   a TCP/IP stack based on <a href="http://www.sics.se/~adam/uip/index.php/Main_Page">uIP</a>.
+   Also included is a device driver for the Davicom DM90x0 ethernet controller.
+</p>
+</p>
+  This integration is very preliminary.  Only a small portion of the
+  network functionality has been integrated and there are a number of
+  open issues.  The network subsystem is pre-alpha this point in time.
+  I expect that it will stabilize and mature over the next few releases.
+</p>
+<p>
+  The baseline functionality of NuttX continues to mature and remains at
+  post-beta (as long as the network is not used).
+</p>
 
 <table width ="100%">
   <tr bgcolor="#e4e4e4">
@@ -251,14 +266,14 @@
     </p>
     <p>
       <b>STATUS:</b>
-        This port is in progress and should be available in the nuttx-0.2.7 release.
+        Initial coding of this port code complete but has not yet been verified.
     </p>
   </td>
 </tr>
 <tr>
   <td valign="top"><img src="favicon.ico"></td>
   <td bgcolor="#5eaee1">
-    <b>ARM9EJS</b>.
+    <b>ARM926EJS</b>.
   </td>
 </tr>
 <tr>
@@ -273,7 +288,7 @@
     </p>
     <p>
       <b>STATUS:</b>
-      This port is code complete but totally untested due to hardware issues with my OSD.
+        This port is complete and verified.
     </p>
    </td>
 </tr>
@@ -329,7 +344,7 @@ is available that be used to build a NuttX-compatible arm-elf toolchain.</blockq
 </table>
 
 <ul>
-<p><b>C5471 (Arm7)</b>
+<p><b>C5471 (ARM7)</b>
   The build for this ARM7 target that includes most of the OS features and
   a broad range of OS tests.  The size of this executable as given by the
   Linux <tt>size</tt> command is (3/9/07):
@@ -338,6 +353,14 @@ is available that be used to build a NuttX-compatible arm-elf toolchain.</blockq
    text    data     bss     dec     hex filename
   53272     428    3568   57268    dfb4 nuttx
 </pre>
+<p><b>DM320 (ARM9)</b>
+  This build for the ARM9 target includes a signficant subset of OS
+  features, ethernet driver and full TCP/IP stack (via uIP).
+</p>
+<pre>
+   text    data     bss     dec     hex filename
+  51368     296    6072   57736    e188 nuttx
+</pre>
 <p><b>87C52</b>
   A reduced functionality OS test for the 8052 target requires only
   about 18-19Kb:
@@ -560,17 +583,7 @@ Other memory:
 	  telldir(), rewindir().
 	* Fixed ARM compilation errors introduced in 0.2.5 (that is what I get
 	  for only testing on the simulation).
-</pre></ul>
 
-<table width ="100%">
-  <tr bgcolor="#e4e4e4">
-  <td>
-    <a name="currentrelease">ChangeLog for Current Release</a>
-  </td>
-  </tr>
-</table>
-
-<pre><ul>
 0.2.7 2007-06-09 Gregory Nutt <spudmonkey@racsa.co.cr>
 
 	* Added stat() to fs layer and to FAT
@@ -592,13 +605,63 @@ Other memory:
 	* Restructured some Makefiles to better handle enabling and disabling
 	  NuttX features without having so much conditional compilation in the
 	  source files.
-	* tools/mkconfig.c: No long depends on asprintf() and _GNU_SOURCE and
+	* tools/mkconfig.c: No longer depends on asprintf() and _GNU_SOURCE and
 	  so should now build in non-GNU, non-GLIBC environments.
 	* include/nuttx/compiler.h: Fix for using SDCC with the Z80.
 	* include/assert.h & arch/pjrc-8051/src/up_assert.c: SDCC does support
 	  __FILE__and __LINE__ (not tested)
 	* examples/ostest/barrier.c: Don't call usleep() when signals are
 	  disabled.
+
+0.2.8 2007-07-02 Gregory Nutt <spudmonkey@racsa.co.cr>
+	* tools/Makefile.mkconfig: Under Cygwin, executable has a different name
+	* tools/mkdeps.sh & arch/arm/src/Makefile: Corrected a problem makeing dependencies
+	* tools/zipme.sh: Force directory name to be nuttx-xx.yy.zz
+	* fs/fs_opendir.c: Correct errors in semaphore usage that can cause deadlock.
+	* lib/lib_getopt.c: Added getopt() support
+	* examples/nsh/:  NSH now supports cat, mount, umount, and mkdir.  ls supports
+	  -l -s, and -R
+	* Added basic OS support to manage environment variables:  environment
+	  storage, cloning on task creation, sharing on pthread creation, destruction
+	  on thread/task exit.
+	* Add environment variables APIs:  environ, getenv, putenv, clearenv, setenv,
+	  unsetenv
+	* Correct an error in realloc() when the block is extended "down" in memory.
+	  In this case, the old memory contents need to be copied to the new location
+	  and an allocated bit was not being set.
+	* examples/ostest/: Added an environment variable test.
+	* examples/nsh/: Break into several files.
+	* lib/: Added strrchr, basename, dirname
+	* examples/nsh/: Add cp, rm, rmdir, set, unset commands. echo will now print
+	  environment variables.
+</pre></ul>
+
+<table width ="100%">
+  <tr bgcolor="#e4e4e4">
+  <td>
+    <a name="currentrelease">ChangeLog for Current Release</a>
+  </td>
+  </tr>
+</table>
+
+<pre><ul>
+0.3.0 2007-11-06 Gregory Nutt <spudmonkey@racsa.co.cr>
+
+	* Imported uIP into the tree (see
+	   http://www.sics.se/~adam/uip/index.php/Main_Page)
+	* Adding socket(), bind(), connect()
+	* Added snprintf()
+	* Added send() and sendto(); integrate write() and close() with socket descriptors.
+        * Added recv() and recvfrom().
+	* Added getsockopt() and setsockopt()
+	* Documentation updated to address socket interfaces.
+	* Implemented receive timeouts via setsockopt(SO_RCVTIMEO).
+	* Provide support for multiple network devices
+	* Implement socket ioctl() calls to set addresses
+	* Added listen() and accept()
+	* Added DM90x0 ethernet driver
+	* ARP timer is now built into the network layer
+	* Basic client functionality verified: socket(), bind(), connect(), recv(), send().
 </pre></ul>
 
 <table width ="100%">
@@ -610,10 +673,7 @@ Other memory:
 </table>
 
 <pre><ul>
-
+0.3.1 2007-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
-0.2.8 2007-xx-xx Gregory Nutt <spudmonkey@racsa.co.cr>
-
-	* Started m68322
 </pre></ul>
 
 <table width ="100%">

Documentation/NuttxPortingGuide.html

@@ -16,7 +16,7 @@
   </b></big>
   <p><small>by</small></p>
   <p>Gregory Nutt</p>
-  <p><small>Last Update: May 26, 2007</small></p>
+  <p><small>Last Update: September 8, 2007</small></p>
 </center>
 
 <center><h1>Table of Contents</h1></center>
@@ -46,9 +46,11 @@
   <li><a href="#DirStructInclude">2.7 include/</a></li>
   <li><a href="#DirStructLib">2.8 lib/</a></li>
   <li><a href="#DirStructMm">2.9 mm/</a></li>
-  <li><a href="#DirStructSched">2.10 sched/</a></li>
+  <li><a href="#DirStructNet">2.10 net</a></li>
-  <li><a href="#DirStructTools">2.11 tools/</a></li>
+  <li><a href="#DirStructNetUtils">2.11 netutils</a></li>
-  <li><a href="#topmakefile">2.12 Makefile</a></li>
+  <li><a href="#DirStructSched">2.12 sched/</a></li>
+  <li><a href="#DirStructTools">2.13 tools/</a></li>
+  <li><a href="#topmakefile">2.14 Makefile</a></li>
 </ul>
 <li><a href="#configandbuild">3.0 Configuring and Building</a></li>
 <ul>
@@ -139,8 +141,8 @@
 |   |   |  `-- <i>(board-specific source files)</i>
 |   |   `-- <i>(board-specific configuration files)</i>
 |   `-- <i>&lt;other-boards&gt;</i>/
-|-- <a href="#DirStructDrivers">drivers</a>
+|-- <a href="#DirStructDrivers">drivers</a>/
-|   |-- Makefile/
+|   |-- Makefile
 |   `-- <i>(common driver source files)</i>
 |-- <a href="#DirStructExamples">examples</a>/
 |   `-- <i>(example)</i>/
@@ -148,9 +150,16 @@
 |       `-- <i>(example source files)</i>
 |-- <a href="#DirStructFs">fs</a>/
 |   |-- Makefile
-|   `-- <i>(fs source files)</i>
+|   `-- <i>(common file system source files)</i>
 |-- <a href="#DirStructInclude">include</a>/
 |   |-- <i>(standard header files)</i>
+|   |-- arpa/
+|   |   `-- <i>(standard header files)</i>
+|   |-- net/
+|   |   `-- uip/
+|   |       `-- <i>(uIP specific header files)</i>
+|   |-- netinet/
+|   |   `-- <i>(standard header files)</i>
 |   |-- nuttx/
 |   |   `-- <i>(nuttx specific header files)</i>
 |   `- sys/
@@ -160,7 +169,29 @@
 |   `-- <i>(lib source files)</i>
 |-- <a href="#DirStructMm">mm</a>/
 |   |-- Makefile
-|   `-- <i>(mm source files)</i>
+|   `-- <i>(memory management source files)</i>
+|-- <a href="#DirStructNet">net</a>/
+|   |-- Makefile
+|   |-- uip/
+|   |   `-- <i>(uip source files)</i>
+|   `-- <i>(socket source files)</i>
+|-- <a href="#DirStructNetUtils">netutils</a>/
+|   |-- dhcp/
+|   |   `-- <i>(dhcp source files)</i>
+|   |-- resolv/
+|   |   `-- <i>(resolv source files)</i>
+|   |-- smtp/
+|   |   `-- <i>(smtp source files)</i>
+|   |-- telnetd/
+|   |   `-- <i>(telnetd source files)</i>
+|   |-- uiplib/
+|   |   `-- <i>(uiplib source files)</i>
+|   |-- weblclient/
+|   |   `-- <i>(webclient source files)</i>
+|   |-- webserver/
+|   |   `-- <i>(webserver source files)</i>
+|   |-- Makefile
+|   `-- <i>(fs source files)</i>
 |-- <a href="#DirStructSched">sched</a>/
 |   |-- Makefile
 |   `-- <i>(sched source files)</i>
@@ -342,6 +373,9 @@
     This port does not support interrupts or a real timer (and hence no
     round robin scheduler)  Otherwise, it is complete.
   </li>
+  <p>NOTE: This target will not run on Cygwin probably for many reasons but
+    first off because it uses some of the same symbols as does cygwind.dll.
+  </p>
 
   <li><code>arch/arm</code>:
     This directory holds common ARM architectures.  At present, this includes
@@ -604,18 +638,30 @@
   This is the NuttX memory manager.
 </p>
 
-<h2>2.10 <a name="DirStructSched">sched</a></h2>
+<h2>2.10 <a name="DirStructNet">net</a></h2>
+<p>
+  This directory contains the implementation of the socket APIs.
+  The subdirectory, <code>uip</code> contians the uIP port.
+</P>
+
+<h2>2.11 <a name="DirStructNetUtils">netutils</a></h2>
+<p>
+  This directory contains most of the network applications contained under the uIP-1.0 apps directory.
+  As the uIP apps/README says, these applications "are not all heavily tested."
+</p>
+
+<h2>2.12 <a name="DirStructSched">sched</a></h2>
 <p>
   The files forming core of the NuttX RTOS reside here.
 </p>
 
-<h2>2.11 <a name="DirStructTools">tools</a></h2>
+<h2>2.13 <a name="DirStructTools">tools</a></h2>
 <p>
   This directory holds a collection of tools and scripts to simplify
   configuring and building NuttX.
 </p>
 
-<h2>2.12 <a name="topmakefile">Makefile</a></h2>
+<h2>2.14 <a name="topmakefile">Makefile</a></h2>
 <p>
   The top-level <code>Makefile</code> in the <code>${TOPDIR}</code> directory contains all of the top-level control
   logic to build NuttX.
@@ -1294,6 +1340,75 @@ The system can be re-made subsequently by just typing <code>make</code>.
   </li>
 </ul>
 
+<h2>Network Support</h2>
+<h3>TCP/IP and UDP support via uIP</h2>
+<ul>
+  <li>
+    <code>CONFIG_NET</code>: Enable or disable all network features
+  </li>
+  <li>
+    <code>CONFIG_NET_IPv6</code>: Build in support for IPv6
+  </li>
+  <li>
+    <code>CONFIG_NSOCKET_DESCRIPTORS</code>: Maximum number of socket descriptors per task/thread.
+  </li>
+  <li>
+    <code>CONFIG_NET_MAX_CONNECTIONS</code>: Maximum number of TCP connections (all tasks).
+  </li>
+  <li>
+    <code>CONFIG_NET_MAX_LISTENPORTS</code>: Maximum number of listening TCP ports (all tasks).
+  </li>
+  <li>
+    <code>CONFIG_NET_SOCKOPTS</code>: Enable or disable support for socket options.
+  </li>
+  <li>
+    <code>CONFIG_NET_BUFFER_SIZE</code>: uIP buffer size
+  </li>
+  <li>
+    <code>CONFIG_NET_LOGGING</code>: Logging on or off
+  </li>
+  <li>
+    <code>CONFIG_NET_UDP</code>: UDP support on or off
+  </li>
+  <li>
+    <code>CONFIG_NET_UDP_CHECKSUMS</code>: UDP checksums on or off
+  </li>
+  <li>
+    <code>CONFIG_NET_UDP_CONNS</code>: The maximum amount of concurrent UDP connections
+  </li>
+  <li>
+    <code>CONFIG_NET_STATISTICS</code>: uIP statistics on or off
+  </li>
+  <li>
+    <code>CONFIG_NET_PINGADDRCONF</code>: Use "ping" packet for setting IP address
+  </li>
+  <li>
+    <code>CONFIG_NET_RECEIVE_WINDOW</code>: The size of the advertised receiver's window
+  </li>
+  <li>
+    <code>CONFIG_NET_ARPTAB_SIZE</code>: The size of the ARP table
+  </li>
+  <li>
+    <code>CONFIG_NET_BROADCAST</code>: Broadcast support
+  </li>
+  <li>
+    <code>CONFIG_NET_LLH_LEN</code>: The link level header length
+  </li>
+  <li>
+    <code>CONFIG_NET_FWCACHE_SIZE</code>: number of packets to remember when looking for duplicates
+  </li>
+</ul>
+
+<h3>UIP Network Utilities</h3>
+<ul>
+  <li>
+    <code>CONFIG_NET_DHCP_LIGHT</code>: Reduces size of DHCP
+  </li>
+  <li>
+    <code>CONFIG_NET_RESOLV_ENTRIES</code>: Number of resolver entries
+  </li>
+</ul>
+
 <h2>Stack and heap information</h2>
 
 <ul>

Makefile

@@ -51,6 +51,10 @@ BOARD_DIR	= configs/$(CONFIG_ARCH_BOARD)
 NONFSDIRS	= sched lib $(ARCH_SRC) mm examples/$(CONFIG_EXAMPLE)
 FSDIRS		= fs drivers
 
+ifeq ($(CONFIG_NET),y)
+NONFSDIRS	+= net netutils
+endif
+
 # CLEANDIRS are the directories that will clean in.  These are
 #   all directories that we know about.
 # MAKEDIRS are the directories in which we will build targets
@@ -75,6 +79,10 @@ ifneq ($(CONFIG_NFILE_DESCRIPTORS),0)
 LINKLIBS	+= fs/libfs$(LIBEXT) drivers/libdrivers$(LIBEXT) 
 endif
 
+ifeq ($(CONFIG_NET),y)
+LINKLIBS	+= net/libnet$(LIBEXT) netutils/libnetutils$(LIBEXT) 
+endif
+
 # This is the name of the final target
 BIN		= nuttx$(EXEEXT)
 
@@ -184,6 +192,12 @@ $(ARCH_SRC)/libarch$(LIBEXT): context
 mm/libmm$(LIBEXT): context
 	$(MAKE) -C mm TOPDIR=$(TOPDIR) libmm$(LIBEXT)
 
+net/libnet$(LIBEXT): context
+	$(MAKE) -C net TOPDIR=$(TOPDIR) libnet$(LIBEXT)
+
+netutils/libnetutils$(LIBEXT): context
+	$(MAKE) -C netutils TOPDIR=$(TOPDIR) libnetutils$(LIBEXT)
+
 fs/libfs$(LIBEXT): context
 	$(MAKE) -C fs TOPDIR=$(TOPDIR) libfs$(LIBEXT)
 

ReleaseNotes

@@ -1,14 +1,23 @@
-nuttx-0.2.7
+nuttx-0.3.0
 ^^^^^^^^^^^
 
-This is the 10th release of NuttX.  This is primarily a bugfix release
+This is the 12th release of NuttX.  This release includes the initial
-to correct a number of problems reported to me (thanks Didier!). This release
+integration of a network subsystem and the uIP TCP/IP stack into NuttX
-does include the final changes complete the FAT filesystem logic including
+(see http://www.sics.se/~adam/uip/index.php/Main_Page).  Also included
-stat(), tatfs(), and non-standard APIs to manage FAT attributes.  At present,
+is a device driver for the Davicom DM90x0 ethernet controller.
-FAT long file names and file trunction() are still not supported.
+
+This integration is very preliminary.  Only a small portion of the
+network functionality has been integrated and there are a number of
+open issues (see the TODO file).  The network subsystem is pre-alpha
+at this point in time.  I expect that it will stabilize and mature
+over the next few releases.
+
+The baseline functionality of NuttX continues to mature and remains at
+post-beta (as long as the network is not used).
 
 See the ChangeLog for a complete list of changes.
 
-This release has been verified only on the Linux user-mode platform.
+This release has been verified only on the Neuros OSD (DM320 ARM9)
+platform using the DM90x0 driver.
 
-This tarball contains a complete CVS snapshot from June 9, 2007.
+This tarball contains a complete CVS snapshot from November 6, 2007.

TODO

@@ -23,26 +23,59 @@ o Signals
 - 'Standard' signals and signal actions are not supported.
 
 o pthreads
-- pthread_cancel():  Should implemenent cancellation points and pthread_testcancel()
+- pthread_cancel():  Should implement cancellation points and pthread_testcancel()
 
 o C++ Support
 - Need to call static constructors
 
 o Network
-- Port FreeBSD TCP/IP stack
+- Did not implement send() and sendto() timeouts.  Option is setable via setsockopt,
+  but is not implemented.
+- netutils/webserver netutils/telnetd (and maybe others) are seriously broken.
+  Need to be re-written to use listen() and accept()
+- Should implement SOCK_RAW
+- listen() and accept() are untested.
+- accept() and recvfrom() need to return connection address
+- Performance Improvements (uIP is not very fast):
+- Improve performance by queing TX operations
+  Add simple buffer management.  CONFIG_NET_BUFFERS
+  (1) On write, queue buffer for output get a new buffer for the socket (waiting if
+      nececcesary
+  (2) Copy buffer structure into uip_driver_structure when driver requests write
+      data
+- Improve performance by stimulating the driver to accept new TX data before the
+  next polling interval.
+
+  Add a txail callback into driver to eliminate send delays.  Since we want to
+  support multiple network devices, this means we will have to add some infrastructure
+  to map to device.
+- Break uip_interrupt() (in uip.c) into several functions.
+- uIP polling issues:
+  (1) uIP expects a single driver to poll at a 500ms interval (dm90x0 currently
+      polls a 5sec).
+  (2) Current logic will not support multiple ethernet drivers.  Each driver should
+      poll on TCP connections connect on the network supported by the driver; UDP
+      polling should respond with TX data only if the UDP packet is intended for the
+      the network supported by the driver.
+  (3) If there were multiple drivers, polling would occur at double the rate.
+- TCP Bug:
+  When TCP data is received with no read in place, it appears that uIP ACKs the data
+  even though it was not taken accepted.  We must either (1) buffer incoming data, or
+  (2) not ACK it so that it will be re-sent.
 
 o USB
 - Implement USB device support
+- Implement USB bulk device
 
 o Libraries
 - sscanf() and lib_vsprintf() do not support floating point values.
+- The definition of environ in stdlib.h is bogus and will not work as it should.  This
+  is because the underlying representation of the environment is not an arry of pointers.
 
 o File system
-- Add statfs(), chmod(), truncate().
+- Add chmod(), truncate().
 - FAT32: long file names
 
-o Console Output
-
 o Documentation
 - Document fs/ & driver/ logic
 - Document C-library APIs
@@ -51,15 +84,16 @@ o Build system
 - Some names under arch are still incorrect.  These should be processor architecture
   names:  pjrc-8051 should be 805x
 - configs/pjrc-8051 should be configs/pjrc-87c52
-- 0.2.4 changes to create the arch/arm directory breaks dependency target in arch/arm/src.
+- Dependencies do not work correctly under configs/<board>/src (same as arch/<arch>/src/board).
-  Probably need to add the path to the chip or common subdirectorys when
-  running tools/mkdeps.sh
 
 o Applications & Tests
 
 o C5471
 
 o DM320
+- It seems that when a lot of debug statements are added, the system no
+  longer boots.  There could be some issue with the bootloader or with
+  the programming of the SDRAM MMU regions.
 
 o LPC214x
 - Finish bringup
@@ -82,3 +116,4 @@ o pjrc-8052 / MCS51
   clock_initialize.c at line 107
   pthread_create.c at 330
   sighand.c at 225 and 244
+

arch/arm/include/irq.h

@@ -44,6 +44,7 @@
  * Included Files
  ************************************************************/
 
+#include <nuttx/irq.h>
 #include <arch/chip/irq.h>
 
 /************************************************************

arch/arm/src/Makefile

@@ -103,7 +103,7 @@ endif
 	@if [ -e board/Makefile ]; then \
 		$(MAKE) -C board TOPDIR=$(TOPDIR) depend ; \
 	fi
-	$(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
+	$(MKDEP) --dep-path chip --dep-path common $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
 	@touch $@
 
 depend: .depend

arch/arm/src/c5471/Make.defs

@@ -37,7 +37,7 @@ HEAD_ASRC	= up_nommuhead.S
 
 CMN_ASRCS	= up_saveusercontext.S up_fullcontextrestore.S
 CMN_CSRCS	= up_allocateheap.c up_assert.c up_blocktask.c up_copystate.c \
-		  up_createstack.c up_dataabort.c up_delay.c up_doirq.c \
+		  up_createstack.c up_dataabort.c up_mdelay.c up_udealy.c up_doirq.c \
 		  up_exit.c up_idle.c up_initialize.c up_initialstate.c \
 		  up_interruptcontext.c up_prefetchabort.c up_releasepending.c \
 		  up_releasestack.c up_reprioritizertr.c up_schedulesigaction.c \

arch/arm/src/c5471/c5471_serial.c

@@ -1,5 +1,5 @@
 /************************************************************
- * c5471/c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471c5471_serial.c
+ * c5471/c5471_serial.c
  *
  *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
@@ -38,16 +38,19 @@
  ************************************************************/
 
 #include <nuttx/config.h>
+
 #include <sys/types.h>
 #include <unistd.h>
 #include <semaphore.h>
 #include <string.h>
 #include <errno.h>
 #include <debug.h>
+
 #include <nuttx/irq.h>
 #include <nuttx/arch.h>
 #include <nuttx/serial.h>
 #include <arch/serial.h>
+
 #include "up_arch.h"
 #include "os_internal.h"
 #include "up_internal.h"
@@ -381,9 +384,9 @@ static int up_setup(struct uart_dev_s *dev)
   /* Both the IrDA and MODEM UARTs support RESET and UART mode. */
 
   up_serialout(priv, UART_MDR_OFFS, MDR_RESET_MODE);
-  up_delay(5);
+  up_mdelay(5);
   up_serialout(priv, UART_MDR_OFFS, MDR_UART_MODE);
-  up_delay(5);
+  up_mdelay(5);
 
   priv->regs.ier = up_inserial(priv, UART_IER_OFFS);
   priv->regs.lcr = up_inserial(priv, UART_LCR_OFFS);

arch/arm/src/common/up_assert.c

@@ -38,11 +38,15 @@
  ************************************************************/
 
 #include <nuttx/config.h>
+
 #include <sys/types.h>
 #include <stdlib.h>
 #include <assert.h>
 #include <debug.h>
+
 #include <nuttx/irq.h>
+#include <nuttx/arch.h>
+
 #include "up_arch.h"
 #include "os_internal.h"
 #include "up_internal.h"
@@ -163,9 +167,9 @@ static void _up_assert(int errorcode) /* __attribute__ ((noreturn)) */
           {
 #ifdef CONFIG_ARCH_LEDS
             up_ledon(LED_PANIC);
-            up_delay(250);
+            up_mdelay(250);
             up_ledoff(LED_PANIC);
-            up_delay(250);
+            up_mdelay(250);
 #endif
           }
     }

arch/arm/src/common/up_initialize.c

@@ -1,4 +1,4 @@
-/************************************************************
+/****************************************************************************
  * common/up_initialize.c
  *
  *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
@@ -31,11 +31,11 @@
  * 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>
@@ -45,37 +45,67 @@
 #include "up_arch.h"
 #include "up_internal.h"
 
-/************************************************************
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/* Define to enable timing loop calibration */
+
+#undef CONFIG_ARM_CALIBRATION
+
+/****************************************************************************
  * Private Types
- ************************************************************/
+ ****************************************************************************/
 
-/************************************************************
+/****************************************************************************
- * Private Function Prototypes
+ * Private Functions
- ************************************************************/
+ ****************************************************************************/
 
-/************************************************************
+/****************************************************************************
- * Global Functions
+ * Name: up_calibratedelay
- ************************************************************/
+ *
+ * Description:
+ *   Delay loops are provided for short timing loops.  This function, if
+ *   enabled, will just wait for 100 seconds.  Using a stopwatch, you can
+ *   can then determine if the timing loops are properly calibrated.
+ *
+ ****************************************************************************/
 
-/************************************************************
+#if defined(CONFIG_ARM_CALIBRATION) & defined(CONFIG_DEBUG)
+static void up_calibratedelay(void)
+{
+  int i;
+  lldbg("Beginning 100s delay\n");
+  for (i = 0; i < 100; i++)
+    {
+      up_mdelay(1000);
+    }
+  lldbg("End 100s delay\n");
+}
+#else
+# define up_calibratedelay()
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
  * Name: up_initialize
  *
  * Description:
- *   up_initialize will be called once during OS
+ *   up_initialize will be called once during OS initialization after the
- *   initialization after the basic OS services have been
+ *   basic OS services have been initialized.  The architecture specific
- *   initialized.  The architecture specific details of
+ *   details of initializing the OS will be handled here.  Such things as
- *   initializing the OS will be handled here.  Such things as
+ *   setting up interrupt service routines, starting the clock, and
- *   setting up interrupt service routines, starting the
+ *   registering device drivers are some of the things that are different
- *   clock, and registering device drivers are some of the
+ *   for each processor and hardware platform.
- *   things that are different for each processor and hardware
- *   platform.
  *
- *   up_initialize is called after the OS initialized but
+ *   up_initialize is called after the OS initialized but before the user
- *   before the init process has been started and before the
+ *   initialization logic has been started and before the libraries have
- *   libraries have been initialized.  OS services and driver
+ *   been initialized.  OS services and driver services are available.
- *   services are available.
  *
- ************************************************************/
+ ****************************************************************************/
 
 void up_initialize(void)
 {
@@ -83,6 +113,10 @@ void up_initialize(void)
 
   current_regs = NULL;
 
+  /* Calibrate the timing loop */
+
+  up_calibratedelay();
+
   /* Initialize the interrupt subsystem */
 
   up_irqinitialize();
@@ -100,5 +134,9 @@ void up_initialize(void)
   /* Initialize the serial device driver */
 
   up_serialinit();
+
+  /* Initialize the netwok */
+
+  up_netinitialize();
   up_ledon(LED_IRQSENABLED);
 }

arch/arm/src/common/up_internal.h

@@ -100,7 +100,6 @@ extern uint32 g_heapbase;
 extern void up_boot(void);
 extern void up_copystate(uint32 *dest, uint32 *src);
 extern void up_dataabort(uint32 *regs);
-extern void up_delay(int milliseconds);
 extern void up_decodeirq(uint32 *regs);
 extern void up_doirq(int irq, uint32 *regs);
 extern void up_fullcontextrestore(uint32 *regs) __attribute__ ((noreturn));
@@ -157,6 +156,13 @@ extern void up_ledoff(int led);
 # define up_ledoff(led)
 #endif
 
+/* Defined in board/up_network.c */
+
+#ifdef CONFIG_NET
+extern void up_netinitialize(void);
+#else
+# define up_netinitialize()
+#endif
 #endif /* __ASSEMBLY__ */
 
 #endif  /* __UP_INTERNAL_H */

arch/arm/src/common/up_mdelay.c

@@ -0,0 +1,90 @@
+/****************************************************************************
+ * common/up_mdelay.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 <nuttx/arch.h>
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_mdelay
+ *
+ * Description:
+ *   Delay inline for the requested number of milliseconds.
+ *   *** NOT multi-tasking friendly ***
+ *
+ * ASSUMPTIONS:
+ *   The setting CONFIG_BOARD_LOOPSPERMSEC has been calibrated
+ *
+ ****************************************************************************/
+
+void up_mdelay(unsigned int milliseconds)
+{
+  volatile int i;
+  volatile int j;
+
+  for (i = 0; i < milliseconds; i++)
+    {
+        for (j = 0; j < CONFIG_BOARD_LOOPSPERMSEC; j++)
+          {
+          }
+    }
+}

arch/arm/src/common/up_udelay.c

@@ -0,0 +1,128 @@
+/****************************************************************************
+ * common/up_udelay.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 <nuttx/arch.h>
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+#define CONFIG_BOARD_LOOPSPER100USEC ((CONFIG_BOARD_LOOPSPERMSEC+5)/10)
+#define CONFIG_BOARD_LOOPSPER10USEC  ((CONFIG_BOARD_LOOPSPERMSEC+50)/100)
+#define CONFIG_BOARD_LOOPSPERUSEC    ((CONFIG_BOARD_LOOPSPERMSEC+500)/1000)
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_udelay
+ *
+ * Description:
+ *   Delay inline for the requested number of microseconds.  NOTE:  Because
+ *   of all of the setup, several microseconds will be lost before the actual
+ *   timing looop begins.  Thus, the delay will always be a few microseconds
+ *   longer than requested.
+ *
+ *   *** NOT multi-tasking friendly ***
+ *
+ * ASSUMPTIONS:
+ *   The setting CONFIG_BOARD_LOOPSPERMSEC has been calibrated
+ *
+ ****************************************************************************/
+
+void up_udelay(unsigned int microseconds)
+{
+  volatile int i;
+
+  /* We'll do this a little at a time because we expect that the
+   * CONFIG_BOARD_LOOPSPERUSEC is very inaccurate during to truncation in
+   * the divisions of its calculation.  We'll use the largest values that
+   * we can in order to prevent significant error buildup in the loops.
+   */
+
+  while (microseconds > 1000)
+    {
+      for (i = 0; i < CONFIG_BOARD_LOOPSPERMSEC; i++)
+        {
+        }
+      microseconds -= 1000;
+    }
+
+  while (microseconds > 100)
+    {
+      for (i = 0; i < CONFIG_BOARD_LOOPSPER100USEC; i++)
+        {
+        }
+      microseconds -= 100;
+    }
+
+  while (microseconds > 10)
+    {
+      for (i = 0; i < CONFIG_BOARD_LOOPSPER10USEC; i++)
+        {
+        }
+      microseconds -= 10;
+    }
+
+  while (microseconds > 0)
+    {
+      for (i = 0; i < CONFIG_BOARD_LOOPSPERUSEC; i++)
+        {
+        }
+      microseconds--;
+    }
+}

arch/arm/src/common/up_undefinedinsn.c

@@ -39,6 +39,8 @@
 
 #include <nuttx/config.h>
 #include <sys/types.h>
+#include <debug.h>
+
 #include "os_internal.h"
 #include "up_internal.h"
 

arch/arm/src/dm320/Make.defs

@@ -38,7 +38,7 @@ HEAD_ASRC	= up_head.S
 CMN_ASRCS	= up_cache.S up_fullcontextrestore.S up_saveusercontext.S \
 		  up_vectors.S up_vectortab.S
 CMN_CSRCS	= up_assert.c up_blocktask.c up_copystate.c up_createstack.c \
-		  up_dataabort.c up_delay.c up_exit.c up_idle.c \
+		  up_dataabort.c up_mdelay.c up_udelay.c up_exit.c up_idle.c \
 		  up_initialize.c up_initialstate.c up_interruptcontext.c \
 		  up_prefetchabort.c up_releasepending.c up_releasestack.c \
 		  up_reprioritizertr.c up_schedulesigaction.c \

arch/arm/src/dm320/dm320_emif.h

@@ -0,0 +1,112 @@
+/************************************************************************************
+ * dm320/dm320_emif.h
+ *
+ *   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.
+ *
+ ************************************************************************************/
+
+#ifndef __DM320_DM320_EMIF_H
+#define __DM320_DM320_EMIF_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+# include <sys/types.h>
+#endif
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/* External Memory Interface (EMIF) Registers */
+
+#define DM320_EMIF_CS0CTRL1     (DM320_PERIPHERALS_VADDR + 0x0A00) /* CS0 Control Register #1 */
+#define DM320_EMIF_CS0CTRL2     (DM320_PERIPHERALS_VADDR + 0x0A02) /* CS0 Control Register #2 */
+#define DM320_EMIF_CS0CTRL3     (DM320_PERIPHERALS_VADDR + 0x0A04) /* CS0 Control Register #3 */
+#define DM320_EMIF_CS1CTRL1A    (DM320_PERIPHERALS_VADDR + 0x0A06) /* CS1 Control Register #1A */
+#define DM320_EMIF_CS1CTRL1B    (DM320_PERIPHERALS_VADDR + 0x0A08) /* CS1 Control Register #1B */
+#define DM320_EMIF_CS2CTRL2     (DM320_PERIPHERALS_VADDR + 0x0A0A) /* CS1 Control Register #2 */
+#define DM320_EMIF_CS2CTRL1     (DM320_PERIPHERALS_VADDR + 0x0A0C) /* CS2 Control Register #1 */
+#define DM320_EMIF_CS1CTRL2     (DM320_PERIPHERALS_VADDR + 0x0A0E) /* CS2 Control Register #2 */
+#define DM320_EMIF_CS3CTRL1     (DM320_PERIPHERALS_VADDR + 0x0A10) /* CS3 Control Register #1 */
+#define DM320_EMIF_CS3CTRL2     (DM320_PERIPHERALS_VADDR + 0x0A12) /* CS3 Control Register #2 */
+#define DM320_EMIF_CS4CTRL1     (DM320_PERIPHERALS_VADDR + 0x0A14) /* CS4 Control Register #1 */
+#define DM320_EMIF_CS4CTRL2     (DM320_PERIPHERALS_VADDR + 0x0A16) /* CS4 Control Register #2 */
+#define DM320_EMIF_BUSCTRL      (DM320_PERIPHERALS_VADDR + 0x0A18) /* Bus Control Register */
+#define DM320_EMIF_BUSRLS       (DM320_PERIPHERALS_VADDR + 0x0A1A) /* Bus Release Control Register */
+#define DM320_EMIF_CFCTRL1      (DM320_PERIPHERALS_VADDR + 0x0A1C) /* CFC ControlRegister #1 */
+#define DM320_EMIF_CFCTRL2      (DM320_PERIPHERALS_VADDR + 0x0A1E) /* CFC ControlRegister#2 */
+#define DM320_EMIF_SMCTRL       (DM320_PERIPHERALS_VADDR + 0x0A20) /* SmartMedia Control Register */
+#define DM320_EMIF_BUSINTEN     (DM320_PERIPHERALS_VADDR + 0x0A22) /* Bus Interrupt Enable Register */
+#define DM320_EMIF_BUSSTS       (DM320_PERIPHERALS_VADDR + 0x0A24) /* Bus Status Register */
+#define DM320_EMIF_BUSWAITMD    (DM320_PERIPHERALS_VADDR + 0x0A26) /* Bus Wait Mode Register */
+#define DM320_EMIF_ECC1CP       (DM320_PERIPHERALS_VADDR + 0x0A28) /* ECC Area 1 CP Register */
+#define DM320_EMIF_ECC1LP       (DM320_PERIPHERALS_VADDR + 0x0A2A) /* ECC Area 1 LP Register */
+#define DM320_EMIF_ECC2CP       (DM320_PERIPHERALS_VADDR + 0x0A2C) /* ECC Area 2 CP Register */
+#define DM320_EMIF_ECC2LP       (DM320_PERIPHERALS_VADDR + 0x0A2E) /* ECC Area 2 LP Register */
+#define DM320_EMIF_ECC3CP       (DM320_PERIPHERALS_VADDR + 0x0A30) /* ECC Area 3 CP Register */
+#define DM320_EMIF_ECC3LP       (DM320_PERIPHERALS_VADDR + 0x0A32) /* ECC Area 3 LP Register */
+#define DM320_EMIF_ECC4CP       (DM320_PERIPHERALS_VADDR + 0x0A34) /* ECC Area 4 CP Register */
+#define DM320_EMIF_ECC4LP       (DM320_PERIPHERALS_VADDR + 0x0A36) /* ECC Area 4 LP Register */
+#define DM320_EMIF_ECC5CP       (DM320_PERIPHERALS_VADDR + 0x0A38) /* ECC Area 5 CP Register */
+#define DM320_EMIF_ECC5LP       (DM320_PERIPHERALS_VADDR + 0x0A3A) /* ECC Area 5 LP Register */
+#define DM320_EMIF_ECC6CP       (DM320_PERIPHERALS_VADDR + 0x0A3C) /* ECC Area 6 CP Register */
+#define DM320_EMIF_ECC6LP       (DM320_PERIPHERALS_VADDR + 0x0A3E) /* ECC Area 6 LP Register */
+#define DM320_EMIF_ECC7CP       (DM320_PERIPHERALS_VADDR + 0x0A40) /* ECC Area 7 CP Register */
+#define DM320_EMIF_ECC7LP       (DM320_PERIPHERALS_VADDR + 0x0A42) /* ECC Area 7 LP Register */
+#define DM320_EMIF_ECC8CP       (DM320_PERIPHERALS_VADDR + 0x0A44) /* ECC Area 8 CP Register */
+#define DM320_EMIF_ECC8LP       (DM320_PERIPHERALS_VADDR + 0x0A46) /* ECC Area 8 LP Register */
+#define DM320_EMIF_ECCCLR       (DM320_PERIPHERALS_VADDR + 0x0A48) /* ECC Clear Register */
+#define DM320_EMIF_PAGESZ       (DM320_PERIPHERALS_VADDR + 0x0A4A) /* SmartMedia Page Size Register */
+#define DM320_EMIF_PRIORCTL     (DM320_PERIPHERALS_VADDR + 0x0A4C) /* Priority control for DMA */
+#define DM320_EMIF_IMGDSPDEST   (DM320_PERIPHERALS_VADDR + 0x0A4E) /* DSP/IMGBUF DMA destination */
+#define DM320_EMIF_IMGDSPADDH   (DM320_PERIPHERALS_VADDR + 0x0A50) /* DSP/IMGBUF high address */
+#define DM320_EMIF_IMGDSPADDL   (DM320_PERIPHERALS_VADDR + 0x0A52) /* DSP/IMGBUG low address */
+#define DM320_EMIF_AHBADDH      (DM320_PERIPHERALS_VADDR + 0x0A54) /* AHB high address */
+#define DM320_EMIF_AHBADDL      (DM320_PERIPHERALS_VADDR + 0x0A56) /* AHB low address */
+#define DM320_EMIF_MTCADDH      (DM320_PERIPHERALS_VADDR + 0x0A58) /* MTC high address */
+#define DM320_EMIF_MTCADDL      (DM320_PERIPHERALS_VADDR + 0x0A5A) /* MTC low address */
+#define DM320_EMIF_DMASIZE      (DM320_PERIPHERALS_VADDR + 0x0A5C) /* DMA Transfer Size Register */
+#define DM320_EMIF_DMAMTCSEL    (DM320_PERIPHERALS_VADDR + 0x0A5E) /* DMA Device Select Register */
+#define DM320_EMIF_DMACTL       (DM320_PERIPHERALS_VADDR + 0x0A60) /* DMA Control Register */
+#define DM320_EMIF_TEST         (DM320_PERIPHERALS_VADDR + 0x0A62) /* Test Register.Do not use */
+
+/************************************************************************************
+ * Inline Functions
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+#endif
+
+#endif  /* __DM320_DM320_EMIF_H */

arch/arm/src/dm320/dm320_gio.h

@@ -90,7 +90,7 @@
     if ((pin) < 16) { _reg = (reg0); _pin = (pin); } \
     else if ((pin) < 32) { _reg = (reg1); _pin = ((pin) - 16); } \
     else { _reg = (reg2); _pin = ((pin) - 32); } \
-    putreg16((getreg16(_reg) | (1 << _pin)), _reg)); \
+    putreg16((getreg16(_reg) | (1 << _pin)), _reg); \
   } while (0)
 
 #define _GIO_CLEAR_REG(pin, reg0, reg1, reg2) \
@@ -99,7 +99,7 @@
     if ((pin) < 16) { _reg = (reg0); _pin = (pin); } \
     else if ((pin) < 32) { _reg = (reg1); _pin = ((pin) - 16); } \
     else { _reg = (reg2); _pin = ((pin) - 32); } \
-    putreg16((getreg16(_reg) & ~(1 << _pin)), _reg)); \
+    putreg16((getreg16(_reg) & ~(1 << _pin)), _reg); \
   } while (0)
 
 /* Select GIO input or output */

arch/arm/src/lpc214x/Make.defs

@@ -37,8 +37,8 @@ HEAD_ASRC	= lpc214x_head.S
 
 CMN_ASRCS	= up_saveusercontext.S up_fullcontextrestore.S up_vectors.S
 CMN_CSRCS	= up_allocateheap.c up_assert.c up_blocktask.c up_copystate.c \
-		  up_createstack.c up_dataabort.c up_delay.c up_exit.c \
+		  up_createstack.c up_dataabort.c up_mdelay.c up_udelay.c \
-		  up_idle.c up_initialize.c up_initialstate.c \
+		  up_exit.c up_idle.c up_initialize.c up_initialstate.c \
 		  up_interruptcontext.c up_prefetchabort.c up_releasepending.c \
 		  up_releasestack.c up_reprioritizertr.c up_schedulesigaction.c \
 		  up_sigdeliver.c up_syscall.c up_unblocktask.c \

arch/c5471/src/up_unblocktask.c

@@ -42,6 +42,7 @@
 #include <sched.h>
 #include <debug.h>
 #include <nuttx/arch.h>
+#include "clock_internal.h"
 #include "os_internal.h"
 #include "up_internal.h"
 
@@ -97,11 +98,11 @@ void up_unblock_task(_TCB *tcb)
      sched_removeblocked(tcb);
 
      /* Reset its timeslice.  This is only meaningful for round
-      * robin tasks but it doesn't here to do it for everything
+      * robin tasks but it doesn't hurt to do it for all tasks
       */
 
 #if CONFIG_RR_INTERVAL > 0
-     tcb->timeslice = CONFIG_RR_INTERVAL / MSEC_PER_SEC;
+     tcb->timeslice = CONFIG_RR_INTERVAL / MSEC_PER_TICK;
 #endif
 
      /* Add the task in the correct location in the prioritized

arch/dm320/src/up_unblocktask.c

@@ -42,6 +42,7 @@
 #include <sched.h>
 #include <debug.h>
 #include <nuttx/arch.h>
+#include "clock_internal.h"
 #include "os_internal.h"
 #include "up_internal.h"
 
@@ -96,11 +97,11 @@ void up_unblock_task(_TCB *tcb)
      sched_removeblocked(tcb);
 
      /* Reset its timeslice.  This is only meaningful for round
-      * robin tasks but it doesn't here to do it for everything
+      * robin tasks but it doesn't hurt to do it for all tasks.
       */
 
 #if CONFIG_RR_INTERVAL > 0
-     tcb->timeslice = CONFIG_RR_INTERVAL / MSEC_PER_SEC;
+     tcb->timeslice = CONFIG_RR_INTERVAL / MSEC_PER_TICK;
 #endif
 
      /* Add the task in the correct location in the prioritized

arch/pjrc-8051/src/up_allocateheap.c

@@ -42,6 +42,7 @@
 #include <sched.h>
 #include <debug.h>
 #include <nuttx/arch.h>
+#include <nuttx/mm.h>
 #include "os_internal.h"
 #include "up_internal.h"
 #include "up_mem.h"

arch/sim/src/Makefile

@@ -49,11 +49,16 @@ CSRCS		= up_initialize.c up_idle.c up_interruptcontext.c \
 ifeq ($(CONFIG_FS_FAT),y)
 CSRCS		+= up_blockdevice.c up_deviceimage.c
 endif
+ifeq ($(CONFIG_NET),y)
+CSRCS		+= up_uipdriver.c
+SPECSRCS	+= up_tapdev.c
+endif
 
 COBJS		= $(CSRCS:.c=$(OBJEXT))
+SPECOBJS	= $(SPECSRCS:.c=$(OBJEXT))
 
-SRCS		= $(ASRCS) $(CSRCS)
+SRCS		= $(ASRCS) $(CSRCS) $(SPECSRCS)
-OBJS		= $(AOBJS) $(COBJS)
+OBJS		= $(AOBJS) $(COBJS) $(SPECOBJS)
 
 LDFLAGS		= $(ARCHSCRIPT)
 EXTRA_LIBS	= -lc
@@ -74,31 +79,33 @@ $(AOBJS): %$(OBJEXT): %.S
 $(COBJS) $(LINKOBJS): %$(OBJEXT): %.c
 	$(CC) -c $(CFLAGS) $< -o $@
 
+$(SPECOBJS): %$(OBJEXT): %.c
+	$(CC) -c $(HOSTCFLAGS) $< -o $@
+
 libarch$(LIBEXT): $(OBJS)
-	( for obj in $(OBJS) ; do \
+	@( for obj in $(OBJS) ; do \
 		$(AR) $@ $${obj} || \
 			{ echo "$(AR) $@ $obj FAILED!" ; exit 1 ; } ; \
 	done ; )
 
-nuttx: $(LINKOBJS)
+nuttx$(EXEEXT): $(LINKOBJS)
 	$(CC) $(LDFLAGS) $(LDPATHES) -o $(TOPDIR)/$@ $(LINKOBJS) \
 		-Wl,--start-group $(LDLIBS) -Wl,--end-group $(EXTRA_LIBS)
 	@$(NM) $(TOPDIR)/$@ | \
-	grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
+		grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \
-	sort > $(TOPDIR)/System.map
+		sort > $(TOPDIR)/System.map
-
 
 .depend: Makefile $(SRCS)
-	$(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
+	@$(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
-	touch $@
+	@touch $@
 
 depend: .depend
 
 clean:
-	rm -f libarch$(LIBEXT) *~
+	@rm -f libarch$(LIBEXT) *~
-	if [ ! -z "$(OBJEXT)" ]; then rm -f *$(OBJEXT); fi
+	@if [ ! -z "$(OBJEXT)" ]; then rm -f *$(OBJEXT); fi
 
 distclean: clean
-	rm -f Make.dep .depend
+	@rm -f Make.dep .depend
 
 -include Make.dep

arch/sim/src/up_blockdevice.c

@@ -14,7 +14,7 @@
  *    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
+ * 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.
  *

arch/sim/src/up_devconsole.c

@@ -33,6 +33,10 @@
  *
  ************************************************************/
 
+#if !defined(linux) && !defined(__CYGWIN__)
+# error "Sorry, this will only work with Linux"
+#else
+
 /************************************************************
  * Included Files
  ************************************************************/
@@ -134,3 +138,6 @@ int up_putc(int ch)
   (void)up_write(1, &b, 1);
   return ch;
 }
+
+#endif /* linux */
+

arch/sim/src/up_head.c

@@ -42,7 +42,7 @@
 #include <stdlib.h>
 #include <setjmp.h>
 #include <assert.h>
-#include <nuttx/os_external.h>
+#include <nuttx/init.h>
 #include <nuttx/arch.h>
 
 /************************************************************

arch/sim/src/up_idle.c

@@ -14,7 +14,7 @@
  *    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
+ * 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.
  *
@@ -80,5 +80,11 @@ void up_idle(void)
    */
 
   sched_process_timer();
+
+  /* Run the network if enabled */
+
+#if defined(CONFIG_NET) && defined(linux)
+  uipdriver_loop();
+#endif
 }
 

arch/sim/src/up_initialize.c

@@ -86,4 +86,7 @@ void up_initialize(void)
   devnull_register();       /* Standard /dev/null */
   up_devconsole();          /* Our private /dev/console */
   up_registerblockdevice(); /* Our simulated block device /dev/blkdev */
+#if defined(CONFIG_NET) && defined(linux)
+  uipdriver_init();         /* Our "real" netwok driver */
+#endif
 }

arch/sim/src/up_internal.h

@@ -107,5 +107,22 @@ extern void up_registerblockdevice(void);
 
 extern char *up_deviceimage(void);
 
+/* up_tapdev.c ************************************************************/
+
+#ifdef CONFIG_NET 
+extern unsigned long up_getwalltime( void );
+extern void tapdev_init(void);
+extern int tapdev_getmacaddr(unsigned char *macaddr);
+extern unsigned int tapdev_read(unsigned char *buf, unsigned int buflen);
+extern void tapdev_send(unsigned char *buf, unsigned int buflen);
+#endif
+
+/* up_uipdriver.c *********************************************************/
+
+#if defined(CONFIG_NET) && defined(linux)
+extern int uipdriver_init(void);
+extern void uipdriver_loop(void);
+#endif
+
 #endif /* __ASSEMBLY__ */
 #endif /* __ARCH_UP_INTERNAL_H */

arch/sim/src/up_setjmp.S

@@ -46,6 +46,12 @@
 /**************************************************************************
  * Private Definitions
  **************************************************************************/
+ 
+#ifdef __CYGWIN__
+# define SYMBOL(s) _##s
+#else
+# define SYMBOL(s) s
+#endif
 
 /**************************************************************************
  * Private Types
@@ -72,58 +78,65 @@
  **************************************************************************/
 
 	.text
-	.globl	up_setjmp
+	.globl	SYMBOL(up_setjmp)
-	.type	up_setjmp, @function
+#ifndef __CYGWIN__
-up_setjmp:
+	.type	SYMBOL(up_setjmp), @function
+#endif
+SYMBOL(up_setjmp):
 
 	/* %ebx, %esi, %edi, and %ebp must be preserved.
 	 * save %ebx, $esi, and %edi now... */
 
-        movl	4(%esp), %eax
+	movl	4(%esp), %eax
-        movl	%ebx, (JB_EBX)(%eax)
+	movl	%ebx, (JB_EBX)(%eax)
-        movl	%esi, (JB_ESI)(%eax)
+	movl	%esi, (JB_ESI)(%eax)
-        movl	%edi, (JB_EDI)(%eax)
+	movl	%edi, (JB_EDI)(%eax)
 
-        /* Save the value of SP as will be after we return */
+	/* Save the value of SP as will be after we return */
 
-        leal	4(%esp), %ecx
+	leal	4(%esp), %ecx
-        movl	%ecx, (JB_SP)(%eax)
+	movl	%ecx, (JB_SP)(%eax)
 
-        /* Save the return PC */
+	/* Save the return PC */
 
-        movl	0(%esp), %ecx
+	movl	0(%esp), %ecx
-        movl	%ecx, (JB_PC)(%eax)
+	movl	%ecx, (JB_PC)(%eax)
 
-        /* Save the framepointer */
+	/* Save the framepointer */
 
-        movl %ebp, (JB_EBP)(%eax)
+	movl %ebp, (JB_EBP)(%eax)
 
 	/* And return 0 */
 
 	xorl    %eax, %eax
-        ret
+	ret
-	.size	up_setjmp, . - up_setjmp
+#ifndef __CYGWIN__
+	.size	SYMBOL(up_setjmp), . - SYMBOL(up_setjmp)
+#endif
+	.globl	SYMBOL(up_longjmp)
+#ifndef __CYGWIN__
+	.type	SYMBOL(up_longjmp), @function
+#endif
+SYMBOL(up_longjmp):
+	movl	4(%esp), %ecx      /* U_pthread_jmpbuf in %ecx.  */
+	movl	8(%esp), %eax      /* Second argument is return value.  */
 
-	.globl	up_longjmp
+	/* Save the return address now.  */
-	.type	up_longjmp, @function
-up_longjmp:
-        movl	4(%esp), %ecx      /* U_pthread_jmpbuf in %ecx.  */
-        movl	8(%esp), %eax      /* Second argument is return value.  */
 
-        /* Save the return address now.  */
+	movl (JB_PC)(%ecx), %edx
 
-        movl (JB_PC)(%ecx), %edx
+	/* Restore registers.  */
 
-        /* Restore registers.  */
+	movl (JB_EBX)(%ecx), %ebx
+	movl (JB_ESI)(%ecx), %esi
+	movl (JB_EDI)(%ecx), %edi
+	movl (JB_EBP)(%ecx), %ebp
+	movl (JB_SP)(%ecx), %esp
 
-        movl (JB_EBX)(%ecx), %ebx
+	/* Jump to saved PC.  */
-        movl (JB_ESI)(%ecx), %esi
-        movl (JB_EDI)(%ecx), %edi
-        movl (JB_EBP)(%ecx), %ebp
-        movl (JB_SP)(%ecx), %esp
 
-        /* Jump to saved PC.  */
+	jmp *%edx
-
+#ifndef __CYGWIN__
-        jmp *%edx
+	.size SYMBOL(up_longjmp), . - SYMBOL(up_longjmp)
-	.size up_longjmp, . - up_longjmp
+#endif
 

arch/sim/src/up_tapdev.c

@@ -0,0 +1,375 @@
+
+/****************************************************************************
+ * up_tapdev.c
+ *
+ *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Based on code from uIP which also has a BSD-like license:
+ *
+ *   Copyright (c) 2001, Adam Dunkels.
+ *   All rights reserved.
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+#ifdef linux
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/uio.h>
+#include <sys/socket.h>
+
+#include <fcntl.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+
+#include <linux/if.h>
+#include <linux/if_tun.h>
+#include <linux/net.h>
+
+extern int lib_rawprintf(const char *format, ...);
+
+/****************************************************************************
+ * Private Definitions
+ ****************************************************************************/
+
+#define TAPDEV_DEBUG    1
+
+#define DEVTAP          "/dev/net/tun"
+
+#ifndef CONFIG_EXAMPLE_UIP_DHCPC
+#  define UIP_IPADDR0   192
+#  define UIP_IPADDR1   168
+#  define UIP_IPADDR2   0
+#  define UIP_IPADDR3   128
+#else
+#  define UIP_IPADDR0   0
+#  define UIP_IPADDR1   0
+#  define UIP_IPADDR2   0
+#  define UIP_IPADDR3   0
+#endif
+
+#define READ            3
+#define WRITE           4
+#define OPEN            5
+#define IOCTL           54
+#define SELECT          82
+#define SOCKETCALL      102
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/* Warning: This is very much Linux version specific! */
+
+struct sel_arg_struct
+{
+  unsigned long   n;
+  fd_set         *inp;
+  fd_set         *outp;
+  fd_set         *exp;
+  struct timeval *tvp;
+};
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+#ifdef TAPDEV_DEBUG
+static int gdrop = 0;
+#endif
+static int gtapdevfd;
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/* This is REALLY awkward.. we need to compile using the system header files,
+ * but we can't use any of the libc calls because all of the symbols are
+ * defined for NuttX (read, write, etc)!  So we do hand rolled syscalls
+ * to get to the Linux functions.
+ */
+
+static inline int up_open(const char *filename, int flags, int mode)
+{
+  int result;
+
+  __asm__ volatile ("int $0x80" \
+                    : "=a" (result) \
+                    : "0" (OPEN), "b" ((int)(filename)), "c" ((int)(flags)), "d" ((int)(mode)) \
+                    : "memory");
+
+  return (int)result;
+}
+
+static inline int up_socketcall(int call, unsigned long *args)
+{
+  int result;
+
+  __asm__ volatile ("int $0x80" \
+                    : "=a" (result) \
+                    : "0" (SOCKETCALL), "b" (call), "c" ((int)args)	\
+                    : "memory");
+
+  return (int)result;
+}
+
+static inline int up_socket(int domain, int type, int protocol)
+{
+  unsigned long args[3];
+  args[0] = domain;
+  args[1] = type;
+  args[2] = protocol;
+  return up_socketcall(SYS_SOCKET, args);  
+}
+
+static inline int up_read(int fd, void* buf, size_t count)
+{
+  ssize_t result;
+
+  __asm__ volatile ("int $0x80" \
+                    : "=a" (result) \
+                    : "0" (READ), "b" ((int)(fd)), "c" ((int)(buf)), "d" ((int)(count)) \
+                    : "memory");
+
+  return (int)result;
+}
+
+static inline int up_write(int fd, const void* buf, size_t count)
+{
+  ssize_t result;
+
+  __asm__ volatile ("int $0x80" \
+                    : "=a" (result) \
+                    : "0" (WRITE), "b" ((int)(fd)), "c" ((int)(buf)), "d" ((int)(count)) \
+                    : "memory");
+
+  return (int)result;
+}
+
+static inline int up_ioctl(int fd, unsigned int cmd, unsigned long arg)
+{
+  ssize_t result;
+
+  __asm__ volatile ("int $0x80" \
+                    : "=a" (result) \
+                    : "0" (IOCTL), "b" ((int)(fd)), "c" ((int)(cmd)), "d" ((long)(arg)) \
+                    : "memory");
+
+  return (int)result;
+}
+
+static inline int up_select(struct sel_arg_struct *arg)
+{
+  ssize_t result;
+
+  __asm__ volatile ("int $0x80" \
+                    : "=a" (result) \
+                    : "0" (SELECT),"b" ((struct sel_arg_struct *)(arg))
+                    : "memory");
+
+  return (int)result;
+}
+
+#ifdef TAPDEV_DEBUG
+static inline void dump_ethhdr(const char *msg, unsigned char *buf, int buflen)
+{
+  lib_rawprintf("TAPDEV: %s %d bytes\n", msg, buflen);
+  lib_rawprintf("        %02x:%02x:%02x:%02x:%02x:%02x %02x:%02x:%02x:%02x:%02x:%02x %02x%02x\n",
+                buf[0], buf[1], buf[2], buf[3], buf[4],  buf[5],
+                buf[6], buf[7], buf[8], buf[9], buf[10], buf[11],
+#if UIP_BYTE_ORDER == UIP_LITTLE_ENDIAN
+                buf[12], buf[13]);
+#else
+                buf[13], buf[12]);
+#endif
+}
+#else
+#  define dump_ethhdr(m,b,l)
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+unsigned long up_getwalltime( void )
+{
+  struct timeval tm;
+  (void)gettimeofday(&tm, NULL);
+  return tm.tv_sec*1000 + tm.tv_usec/1000;
+}
+
+void tapdev_init(void)
+{
+  struct ifreq ifr;
+  char buf[1024];
+  int ret;
+
+  /* Open the tap device */
+
+  gtapdevfd = up_open(DEVTAP, O_RDWR, 0644);
+  if (gtapdevfd < 0)
+    {
+      lib_rawprintf("TAPDEV: open failed: %d\n", -gtapdevfd );
+      return;
+    }
+
+  /* Configure the tap device */
+
+  memset(&ifr, 0, sizeof(ifr));
+  ifr.ifr_flags = IFF_TAP|IFF_NO_PI;
+  ret = up_ioctl(gtapdevfd, TUNSETIFF, (unsigned long) &ifr);
+  if (ret < 0)
+    {
+      lib_rawprintf("TAPDEV: ioctl failed: %d\n", -ret );
+      return;
+   }
+
+  /* Assign an IPv4 address to the tap device */
+
+  snprintf(buf, sizeof(buf), "/sbin/ifconfig tap0 inet %d.%d.%d.%d\n",
+           UIP_IPADDR0, UIP_IPADDR1, UIP_IPADDR2, UIP_IPADDR3);
+  system(buf);
+}
+
+int tapdev_getmacaddr(unsigned char *macaddr)
+{
+  int ret = -1;
+  if (macaddr)
+    {
+      /* Get a socket (only so that we get access to the INET subsystem) */
+
+      int sockfd = up_socket(PF_INET, SOCK_DGRAM, 0);
+      if (sockfd >= 0)
+        {
+          struct ifreq req;
+          memset (&req, 0, sizeof(struct ifreq));
+
+          /* Put the driver name into the request */
+
+          strncpy(req.ifr_name, "tap0", IFNAMSIZ);
+
+          /* Perform the ioctl to get the MAC address */
+
+          ret = up_ioctl(sockfd, SIOCGIFHWADDR, (unsigned long)&req);
+          if (!ret)
+            {
+              /* Return the MAC address */
+
+              memcpy(macaddr, &req.ifr_hwaddr.sa_data, IFHWADDRLEN);
+            }
+        }
+    }
+  return ret;
+}
+
+unsigned int tapdev_read(unsigned char *buf, unsigned int buflen)
+{
+  struct sel_arg_struct arg;
+  fd_set                fdset;
+  struct timeval        tv;
+  int                   ret;
+
+  /* We can't do anything if we failed to open the tap device */
+
+  if (gtapdevfd < 0)
+    {
+      return 0;
+    }
+
+  /* Wait for data on the tap device (or a timeout) */
+
+  tv.tv_sec  = 0;
+  tv.tv_usec = 1000;
+
+  FD_ZERO(&fdset);
+  FD_SET(gtapdevfd, &fdset);
+
+  arg.n    = gtapdevfd + 1;
+  arg.inp  = &fdset;
+  arg.outp = NULL;
+  arg.exp  = NULL;
+  arg.tvp  = &tv;
+
+  ret = up_select(&arg);
+  if(ret == 0)
+    {
+      return 0;
+    }
+
+  ret = up_read(gtapdevfd, buf, buflen);
+  if (ret < 0)
+    {
+      lib_rawprintf("TAPDEV: read failed: %d\n", -ret);
+      return 0;
+    }
+
+  dump_ethhdr("read", buf, ret);
+  return ret;
+}
+
+void tapdev_send(unsigned char *buf, unsigned int buflen)
+{
+  int ret;
+#ifdef TAPDEV_DEBUG
+  lib_rawprintf("tapdev_send: sending %d bytes\n", buflen);
+
+  gdrop++;
+  if(gdrop % 8 == 7)
+    {
+      lib_rawprintf("Dropped a packet!\n");
+      return;
+    }
+#endif
+
+  ret = up_write(gtapdevfd, buf, buflen);
+  if (ret < 0)
+    {
+      lib_rawprintf("TAPDEV: write failed: %d", -ret);
+      exit(1);
+    }
+  dump_ethhdr("write", buf, buflen);
+}
+
+#endif /* linux */
+
+

arch/sim/src/up_uipdriver.c

@@ -0,0 +1,224 @@
+/****************************************************************************
+ * up_uipdriver.c
+ *
+ *   Copyright (C) 2007 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Based on code from uIP which also has a BSD-like license:
+ *
+ *   Copyright (c) 2001, Adam Dunkels.
+ *   All rights reserved.
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+#ifdef linux
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <sys/types.h>
+#include <string.h>
+#include <sched.h>
+#include <nuttx/net.h>
+
+#include <net/uip/uip.h>
+#include <net/uip/uip-arch.h>
+#include <net/uip/uip-arp.h>
+
+#include "up_internal.h"
+
+/****************************************************************************
+ * Private Definitions
+ ****************************************************************************/
+
+#define BUF ((struct uip_eth_hdr *)g_sim_dev.d_buf)
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+struct timer
+{
+  uint32 interval;
+  uint32 start;
+};
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static struct timer g_periodic_timer;
+static struct uip_driver_s g_sim_dev;
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+static void timer_set( struct timer *t, unsigned int interval )
+{
+  t->interval = interval;
+  t->start    = up_getwalltime();
+}
+
+static boolean timer_expired( struct timer *t )
+{
+  return (up_getwalltime() - t->start) >= t->interval;
+}
+
+void timer_reset(struct timer *t)
+{
+  t->start += t->interval;
+}
+
+#ifdef CONFIG_NET_PROMISCUOUS
+# define uipdriver_comparemac(a,b) (0)
+#else
+static inline int uip_comparemac(struct uip_eth_addr *paddr1, struct uip_eth_addr *paddr2)
+{
+  return memcmp(paddr1, paddr2, sizeof(struct uip_eth_addr));
+}
+#endif
+
+static int sim_uiptxpoll(struct uip_driver_s *dev)
+{
+  /* If the polling resulted in data that should be sent out on the network,
+   * the field d_len is set to a value > 0.
+   */
+
+  if (g_sim_dev.d_len > 0)
+    {
+      uip_arp_out(&g_sim_dev);
+      tapdev_send(g_sim_dev.d_buf, g_sim_dev.d_len);
+    }
+
+  /* If zero is returned, the polling will continue until all connections have
+   * been examined.
+   */
+
+  return 0;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+void uipdriver_loop(void)
+{
+  int i;
+
+  /* tapdev_read will return 0 on a timeout event and >0 on a data received event */
+
+  g_sim_dev.d_len = tapdev_read((unsigned char*)g_sim_dev.d_buf, UIP_BUFSIZE);
+
+  /* Disable preemption through to the following so that it behaves a little more
+   * like an interrupt (otherwise, the following logic gets pre-empted an behaves
+   * oddly.
+   */
+
+  sched_lock();
+  if (g_sim_dev.d_len > 0)
+    {
+      /* Data received event.  Check for valid Ethernet header with destination == our
+       * MAC address
+       */
+
+      if (g_sim_dev.d_len > UIP_LLH_LEN && uip_comparemac( &BUF->dest, &g_sim_dev.d_mac) == 0)
+        {
+          /* We only accept IP packets of the configured type and ARP packets */
+
+#ifdef CONFIG_NET_IPv6
+          if (BUF->type == htons(UIP_ETHTYPE_IP6))
+#else
+          if (BUF->type == htons(UIP_ETHTYPE_IP))
+#endif
+            {
+              uip_arp_ipin();
+              uip_input(&g_sim_dev);
+
+             /* If the above function invocation resulted in data that
+              * should be sent out on the network, the global variable
+              * d_len is set to a value > 0.
+              */
+
+              if (g_sim_dev.d_len > 0)
+                {
+                  uip_arp_out(&g_sim_dev);
+                  tapdev_send(g_sim_dev.d_buf, g_sim_dev.d_len);
+                }
+            }
+          else if (BUF->type == htons(UIP_ETHTYPE_ARP))
+            {
+              uip_arp_arpin(&g_sim_dev);
+
+              /* If the above function invocation resulted in data that
+               * should be sent out on the network, the global variable
+               * d_len is set to a value > 0.
+               */
+
+              if (g_sim_dev.d_len > 0)
+                {
+                  tapdev_send(g_sim_dev.d_buf, g_sim_dev.d_len);
+                }
+            }
+        }
+    }
+
+  /* Otherwise, it must be a timeout event */
+
+  else if (timer_expired(&g_periodic_timer))
+    {
+      timer_reset(&g_periodic_timer);
+      uip_poll(&g_sim_dev, sim_uiptxpoll, UIP_DRV_TIMER);
+    }
+  sched_unlock();
+}
+
+int uipdriver_init(void)
+{
+  /* Internal initalization */
+
+  timer_set(&g_periodic_timer, 500);
+  tapdev_init();
+  (void)tapdev_getmacaddr(g_sim_dev.d_mac.addr);
+
+  /* Register the device with the OS so that socket IOCTLs can be performed */
+
+  (void)netdev_register(&g_sim_dev);
+  return OK;
+}
+
+#endif /* linux */
+

configs/README.txt

@@ -164,7 +164,8 @@ defconfig -- This is a configuration file similar to the Linux
 	  up waiting tasks.
 
 		CONFIG_DISABLE_CLOCK, CONFIG_DISABLE_POSIX_TIMERS, CONFIG_DISABLE_PTHREAD.
-		CONFIG_DISABLE_SIGNALS, CONFIG_DISABLE_MQUEUE, CONFIG_DISABLE_MOUNTPOUNT
+		CONFIG_DISABLE_SIGNALS, CONFIG_DISABLE_MQUEUE, CONFIG_DISABLE_MOUNTPOUNT,
+		CONFIG_DISABLE_ENVIRON
 
 
 	Misc libc settings
@@ -207,6 +208,35 @@ defconfig -- This is a configuration file similar to the Linux
 		  structures.  The system manages a pool of preallocated
 		  watchdog structures to minimize dynamic allocations
 
+	TCP/IP and UDP support via uIP
+		CONFIG_NET - Enable or disable all network features
+		CONFIG_NET_IPv6 - Build in support for IPv6
+		CONFIG_NSOCKET_DESCRIPTORS - Maximum number of socket descriptors
+                  per task/thread.
+		CONFIG_NET_MAX_CONNECTIONS - Maximum number of TCP connections (all tasks)
+		CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks)
+		CONFIG_NET_SOCKOPTS - Enable or disable support for socket options
+
+		CONFIG_NET_BUFFER_SIZE - uIP buffer size
+		CONFIG_NET_LOGGING - Logging on or off
+		CONFIG_NET_UDP - UDP support on or off
+		CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off
+		CONFIG_NET_UDP_CONNS - The maximum amount of concurrent UDP
+		  connections
+		CONFIG_NET_STATISTICS - uIP statistics on or off
+		CONFIG_NET_PINGADDRCONF - Use "ping" packet for setting IP address
+		CONFIG_NET_RECEIVE_WINDOW - The size of the advertised receiver's
+		  window
+		CONFIG_NET_ARPTAB_SIZE - The size of the ARP table
+		CONFIG_NET_BROADCAST - Broadcast support
+		CONFIG_NET_LLH_LEN - The link level header length
+		CONFIG_NET_FWCACHE_SIZE - number of packets to remember when
+		  looking for duplicates
+
+	UIP Network Utilities
+		CONFIG_NET_DHCP_LIGHT - Reduces size of DHCP
+		CONFIG_NET_RESOLV_ENTRIES - Number of resolver entries
+
 	Stack and heap information
 
 		CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
@@ -231,6 +261,9 @@ configs/sim
     This port does not support interrupts or a real timer (and hence no
     round robin scheduler)  Otherwise, it is complete.
 
+    NOTE: This target will not run on Cygwin probably for many reasons but
+    first off because it uses some of the same symbols as does cygwind.dll.
+
 configs/c5471evm
     This is a port to the Spectrum Digital C5471 evaluation board.  The
     C5471 is a dual core processor from TI with an ARM7TDMI general purpose

configs/c5471evm/Make.defs

@@ -68,4 +68,9 @@ ifeq ("${CONFIG_DEBUG}","y")
   LDFLAGS		+= -g
 endif
 
+HOSTCC			= gcc
+HOSTINCLUDES		= -I.
+HOSTCFLAGS		= -Wall -wstrict-prototypes -Wshadow -g -pipe
+HOSTLDFLAGS		=
+
 

configs/c5471evm/defconfig

@@ -163,6 +163,7 @@ CONFIG_DISABLE_PTHREAD=n
 CONFIG_DISABLE_SIGNALS=n
 CONFIG_DISABLE_MQUEUE=n
 CONFIG_DISABLE_MOUNTPOINT=y
+CONFIG_DISABLE_ENVIRON=y
 
 #
 # Misc libc settings
@@ -248,6 +249,52 @@ CONFIG_MAX_WDOGPARMS=4
 CONFIG_PREALLOC_WDOGS=32
 CONFIG_PREALLOC_TIMERS=8
 
+#
+# TCP/IP and UDP support via uIP
+# CONFIG_NET - Enable or disable all network features
+# CONFIG_NET_IPv6 - Build in support for IPv6
+# CONFIG_NSOCKET_DESCRIPTORS - Maximum number of socket descriptors per task/thread.
+# CONFIG_NET_MAX_CONNECTIONS - Maximum number of TCP connections (all tasks)
+# CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks)
+# CONFIG_NET_SOCKOPTS - Enable or disable support for socket options
+# CONFIG_NET_BUFFER_SIZE - uIP buffer size
+# CONFIG_NET_LOGGING - Logging on or off
+# CONFIG_NET_UDP - UDP support on or off
+# CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off
+# CONFIG_NET_UDP_CONNS - The maximum amount of concurrent UDP connections
+# CONFIG_NET_STATISTICS - uIP statistics on or off
+# CONFIG_NET_PINGADDRCONF - Use "ping" packet for setting IP address
+# CONFIG_NET_RECEIVE_WINDOW - The size of the advertised receiver's window
+# CONFIG_NET_ARPTAB_SIZE - The size of the ARP table
+# CONFIG_NET_BROADCAST - Broadcast support
+# CONFIG_NET_LLH_LEN - The link level header length
+# CONFIG_NET_FWCACHE_SIZE - number of packets to remember when looking for duplicates
+CONFIG_NET=n
+CONFIG_NET_IPv6=n
+CONFIG_NSOCKET_DESCRIPTORS=0
+CONFIG_NET_MAX_CONNECTIONS=40
+CONFIG_NET_MAX_LISTENPORTS=40
+CONFIG_NET_SOCKOPTS=y
+CONFIG_NET_BUFFER_SIZE=420
+CONFIG_NET_LOGGING=y
+CONFIG_NET_UDP=n
+CONFIG_NET_UDP_CHECKSUMS=y
+#CONFIG_NET_UDP_CONNS=10
+CONFIG_NET_STATISTICS=y
+#CONFIG_NET_PINGADDRCONF=0
+#CONFIG_NET_RECEIVE_WINDOW=
+#CONFIG_NET_ARPTAB_SIZE=8
+CONFIG_NET_BROADCAST=n
+#CONFIG_NET_LLH_LEN=14
+#CONFIG_NET_FWCACHE_SIZE=2
+
+#
+# UIP Network Utilities
+# CONFIG_NET_DHCP_LIGHT - Reduces size of DHCP
+# CONFIG_NET_RESOLV_ENTRIES - Number of resolver entries
+CONFIG_NET_DHCP_LIGHT=n
+CONFIG_NET_RESOLV_ENTRIES=4
+
 #
 # Stack and heap information
 #

configs/m68332evb/Make.defs

@@ -68,4 +68,7 @@ ifeq ("${CONFIG_DEBUG}","y")
   LDFLAGS		+= -g
 endif
 
-
+HOSTCC			= gcc
+HOSTINCLUDES		= -I.
+HOSTCFLAGS		= -Wall -wstrict-prototypes -Wshadow -g -pipe
+HOSTLDFLAGS		=

configs/m68332evb/defconfig

@@ -152,6 +152,7 @@ CONFIG_DISABLE_PTHREAD=n
 CONFIG_DISABLE_SIGNALS=n
 CONFIG_DISABLE_MQUEUE=n
 CONFIG_DISABLE_MOUNTPOINT=y
+CONFIG_DISABLE_ENVIRON=y
 
 #
 # Misc libc settings
@@ -237,6 +238,52 @@ CONFIG_MAX_WDOGPARMS=4
 CONFIG_PREALLOC_WDOGS=32
 CONFIG_PREALLOC_TIMERS=8
 
+#
+# TCP/IP and UDP support via uIP
+# CONFIG_NET - Enable or disable all network features
+# CONFIG_NET_IPv6 - Build in support for IPv6
+# CONFIG_NSOCKET_DESCRIPTORS - Maximum number of socket descriptors per task/thread.
+# CONFIG_NET_MAX_CONNECTIONS - Maximum number of TCP connections (all tasks)
+# CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks)
+# CONFIG_NET_SOCKOPTS - Enable or disable support for socket options
+# CONFIG_NET_BUFFER_SIZE - uIP buffer size
+# CONFIG_NET_LOGGING - Logging on or off
+# CONFIG_NET_UDP - UDP support on or off
+# CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off
+# CONFIG_NET_UDP_CONNS - The maximum amount of concurrent UDP connections
+# CONFIG_NET_STATISTICS - uIP statistics on or off
+# CONFIG_NET_PINGADDRCONF - Use "ping" packet for setting IP address
+# CONFIG_NET_RECEIVE_WINDOW - The size of the advertised receiver's window
+# CONFIG_NET_ARPTAB_SIZE - The size of the ARP table
+# CONFIG_NET_BROADCAST - Broadcast support
+# CONFIG_NET_LLH_LEN - The link level header length
+# CONFIG_NET_FWCACHE_SIZE - number of packets to remember when looking for duplicates
+CONFIG_NET=n
+CONFIG_NET_IPv6=n
+CONFIG_NSOCKET_DESCRIPTORS=0
+CONFIG_NET_MAX_CONNECTIONS=40
+CONFIG_NET_MAX_LISTENPORTS=40
+CONFIG_NET_SOCKOPTS=y
+CONFIG_NET_BUFFER_SIZE=420
+CONFIG_NET_LOGGING=y
+CONFIG_NET_UDP=n
+CONFIG_NET_UDP_CHECKSUMS=y
+#CONFIG_NET_UDP_CONNS=10
+CONFIG_NET_STATISTICS=y
+#CONFIG_NET_PINGADDRCONF=0
+#CONFIG_NET_RECEIVE_WINDOW=
+#CONFIG_NET_ARPTAB_SIZE=8
+CONFIG_NET_BROADCAST=n
+#CONFIG_NET_LLH_LEN=14
+#CONFIG_NET_FWCACHE_SIZE=2
+
+#
+# UIP Network Utilities
+# CONFIG_NET_DHCP_LIGHT - Reduces size of DHCP
+# CONFIG_NET_RESOLV_ENTRIES - Number of resolver entries
+CONFIG_NET_DHCP_LIGHT=n
+CONFIG_NET_RESOLV_ENTRIES=4
+
 #
 # Stack and heap information
 #

configs/mcu123-lpc214x/Make.defs

@@ -68,4 +68,8 @@ ifeq ("${CONFIG_DEBUG}","y")
   LDFLAGS		+= -g
 endif
 
+HOSTCC			= gcc
+HOSTINCLUDES		= -I.
+HOSTCFLAGS		= -Wall -wstrict-prototypes -Wshadow -g -pipe
+HOSTLDFLAGS		=
 

configs/mcu123-lpc214x/defconfig

@@ -176,6 +176,7 @@ CONFIG_DISABLE_PTHREAD=n
 CONFIG_DISABLE_SIGNALS=n
 CONFIG_DISABLE_MQUEUE=n
 CONFIG_DISABLE_MOUNTPOINT=y
+CONFIG_DISABLE_ENVIRON=y
 
 #
 # Misc libc settings
@@ -261,6 +262,52 @@ CONFIG_MAX_WDOGPARMS=4
 CONFIG_PREALLOC_WDOGS=32
 CONFIG_PREALLOC_TIMERS=8
 
+#
+# TCP/IP and UDP support via uIP
+# CONFIG_NET - Enable or disable all network features
+# CONFIG_NET_IPv6 - Build in support for IPv6
+# CONFIG_NSOCKET_DESCRIPTORS - Maximum number of socket descriptors per task/thread.
+# CONFIG_NET_MAX_CONNECTIONS - Maximum number of TCP connections (all tasks)
+# CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks)
+# CONFIG_NET_SOCKOPTS - Enable or disable support for socket options
+# CONFIG_NET_BUFFER_SIZE - uIP buffer size
+# CONFIG_NET_LOGGING - Logging on or off
+# CONFIG_NET_UDP - UDP support on or off
+# CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off
+# CONFIG_NET_UDP_CONNS - The maximum amount of concurrent UDP connections
+# CONFIG_NET_STATISTICS - uIP statistics on or off
+# CONFIG_NET_PINGADDRCONF - Use "ping" packet for setting IP address
+# CONFIG_NET_RECEIVE_WINDOW - The size of the advertised receiver's window
+# CONFIG_NET_ARPTAB_SIZE - The size of the ARP table
+# CONFIG_NET_BROADCAST - Broadcast support
+# CONFIG_NET_LLH_LEN - The link level header length
+# CONFIG_NET_FWCACHE_SIZE - number of packets to remember when looking for duplicates
+CONFIG_NET=n
+CONFIG_NET_IPv6=n
+CONFIG_NSOCKET_DESCRIPTORS=0
+CONFIG_NET_MAX_CONNECTIONS=40
+CONFIG_NET_MAX_LISTENPORTS=40
+CONFIG_NET_SOCKOPTS=y
+CONFIG_NET_BUFFER_SIZE=420
+CONFIG_NET_LOGGING=y
+CONFIG_NET_UDP=n
+CONFIG_NET_UDP_CHECKSUMS=y
+#CONFIG_NET_UDP_CONNS=10
+CONFIG_NET_STATISTICS=y
+#CONFIG_NET_PINGADDRCONF=0
+#CONFIG_NET_RECEIVE_WINDOW=
+#CONFIG_NET_ARPTAB_SIZE=8
+CONFIG_NET_BROADCAST=n
+#CONFIG_NET_LLH_LEN=14
+#CONFIG_NET_FWCACHE_SIZE=2
+
+#
+# UIP Network Utilities
+# CONFIG_NET_DHCP_LIGHT - Reduces size of DHCP
+# CONFIG_NET_RESOLV_ENTRIES - Number of resolver entries
+CONFIG_NET_DHCP_LIGHT=n
+CONFIG_NET_RESOLV_ENTRIES=4
+
 #
 # Stack and heap information
 #

configs/ntosd-dm320/Make.defs

@@ -68,4 +68,8 @@ ifeq ("${CONFIG_DEBUG}","y")
   LDFLAGS		+= -g
 endif
 
+HOSTCC			= gcc
+HOSTINCLUDES		= -I.
+HOSTCFLAGS		= -Wall -Wstrict-prototypes -Wshadow -g -pipe
+HOSTLDFLAGS		=
 

configs/ntosd-dm320/README.txt

@@ -0,0 +1,11 @@
+README
+^^^^^^
+
+The configuration netconfig may be used instead of the
+default configuration (defconfig).  This configuration
+enables networking using the OSDs DM9000A ethernet
+interface.
+
+Disclaimer:  The NuttX network subsystem is a "work in
+progress" at this time and minimal network functionality
+should be expected.

configs/ntosd-dm320/defconfig

@@ -58,7 +58,7 @@ CONFIG_ARCH_CHIP=dm320
 CONFIG_ARCH_CHIP_DM320=y
 CONFIG_ARCH_BOARD=ntosd-dm320
 CONFIG_ARCH_BOARD_NTOSD_DM320=y
-CONFIG_BOARD_LOOPSPERMSEC=1250
+CONFIG_BOARD_LOOPSPERMSEC=16945
 CONFIG_DRAM_SIZE=0x01000000
 CONFIG_DRAM_START=0x01000000
 CONFIG_DRAM_VSTART=0x00000000
@@ -161,6 +161,7 @@ CONFIG_DISABLE_PTHREAD=n
 CONFIG_DISABLE_SIGNALS=n
 CONFIG_DISABLE_MQUEUE=n
 CONFIG_DISABLE_MOUNTPOINT=y
+CONFIG_DISABLE_ENVIRON=y
 
 #
 # Misc libc settings
@@ -246,6 +247,72 @@ CONFIG_MAX_WDOGPARMS=4
 CONFIG_PREALLOC_WDOGS=32
 CONFIG_PREALLOC_TIMERS=8
 
+#
+# TCP/IP and UDP support via uIP
+# CONFIG_NET - Enable or disable all network features
+# CONFIG_NET_IPv6 - Build in support for IPv6
+# CONFIG_NSOCKET_DESCRIPTORS - Maximum number of socket descriptors per task/thread.
+# CONFIG_NET_MAX_CONNECTIONS - Maximum number of TCP connections (all tasks)
+# CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks)
+# CONFIG_NET_SOCKOPTS - Enable or disable support for socket options
+# CONFIG_NET_BUFFER_SIZE - uIP buffer size
+# CONFIG_NET_LOGGING - Logging on or off
+# CONFIG_NET_UDP - UDP support on or off
+# CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off
+# CONFIG_NET_UDP_CONNS - The maximum amount of concurrent UDP connections
+# CONFIG_NET_STATISTICS - uIP statistics on or off
+# CONFIG_NET_PINGADDRCONF - Use "ping" packet for setting IP address
+# CONFIG_NET_RECEIVE_WINDOW - The size of the advertised receiver's window
+# CONFIG_NET_ARPTAB_SIZE - The size of the ARP table
+# CONFIG_NET_BROADCAST - Broadcast support
+# CONFIG_NET_LLH_LEN - The link level header length
+# CONFIG_NET_FWCACHE_SIZE - number of packets to remember when looking for duplicates
+CONFIG_NET=n
+CONFIG_NET_IPv6=n
+CONFIG_NSOCKET_DESCRIPTORS=0
+CONFIG_NET_MAX_CONNECTIONS=40
+CONFIG_NET_MAX_LISTENPORTS=40
+CONFIG_NET_SOCKOPTS=y
+CONFIG_NET_BUFFER_SIZE=420
+CONFIG_NET_LOGGING=y
+CONFIG_NET_UDP=n
+CONFIG_NET_UDP_CHECKSUMS=y
+#CONFIG_NET_UDP_CONNS=10
+CONFIG_NET_STATISTICS=y
+#CONFIG_NET_PINGADDRCONF=0
+#CONFIG_NET_RECEIVE_WINDOW=
+#CONFIG_NET_ARPTAB_SIZE=8
+CONFIG_NET_BROADCAST=n
+#CONFIG_NET_LLH_LEN=14
+#CONFIG_NET_FWCACHE_SIZE=2
+
+#
+# UIP Network Utilities
+# CONFIG_NET_DHCP_LIGHT - Reduces size of DHCP
+# CONFIG_NET_RESOLV_ENTRIES - Number of resolver entries
+CONFIG_NET_DHCP_LIGHT=n
+CONFIG_NET_RESOLV_ENTRIES=4
+
+#
+# Settings for examples/nettest
+CONFIG_EXAMPLE_NETTEST_IPADDR=(10<<24|0<<16|0<<8|2)
+CONFIG_EXAMPLE_NETTEST_DRIPADDR=(10<<24|0<<16|0<<8|1)
+CONFIG_EXAMPLE_NETTEST_NETMASK=(255<<24|255<<16|255<<8|0)
+CONFIG_EXAMPLE_NETTEST_CLIENTIP=(10<<24|0<<16|0<<8|1)
+
+#
+# DM90x0 Driver Settings
+CONFIG_NET_DM90x0=n
+CONFIG_DM9X_NINTERFACES=1
+CONFIG_DM9X_STATS=1
+CONFIG_DM9X_BASE=0xd0000300
+CONFIG_DM9X_IRQ=27
+CONFIG_DM9X_BUSWIDTH8=n
+CONFIG_DM9X_BUSWIDTH16=y
+CONFIG_DM9X_BUSWIDTH32=n
+CONFIG_DM9X_CHECKSUM=n
+CONFIG_DM9X_ETRANS=n
+
 #
 # Stack and heap information
 #

configs/ntosd-dm320/include/board.h

@@ -81,6 +81,7 @@
 #define GIO_KEY_SCAN3    4
 #define GIO_KEY_SCAN4    5
 #define GIO_MS_DETECT    5
+#define GIO_DM9000A_INT  6
 #define GIO_MMC_DETECT   8
 #define GIO_CFC_DETECT   9
 #define GIO_VIDEO_IN     10

configs/ntosd-dm320/netconfig

@@ -0,0 +1,338 @@
+############################################################
+# defconfig
+#
+#   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.
+#
+############################################################
+#
+# architecture selection
+#
+# CONFIG_ARCH - identifies the arch subdirectory and, hence, the
+#   processor architecture.
+# CONFIG_ARCH_name - for use in C code.  This identifies the
+#   particular chip or SoC that the architecture is implemented
+#   in.
+# CONFIG_ARCH_CHIP - Identifies the arch/*/chip subdirectory
+# CONFIG_ARCH_CHIP_name - For use in C code
+# CONFIG_ARCH_BOARD - identifies the configs subdirectory and, hence,
+#   the board that supports the particular chip or SoC.
+# CONFIG_ARCH_BOARD_name - for use in C code
+# CONFIG_ENDIAN_BIG - define if big endian (default is little endian)
+# CONFIG_BOARD_LOOPSPERMSEC - for delay loops
+# CONFIG_DRAM_SIZE - Describes the installed DRAM.
+# CONFIG_DRAM_START - The start address of DRAM (physical)
+# CONFIG_DRAM_VSTART - The startaddress of DRAM (virtual)
+# CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
+#
+CONFIG_ARCH=arm
+CONFIG_ARCH_ARM=y
+CONFIG_ARCH_CHIP=dm320
+CONFIG_ARCH_CHIP_DM320=y
+CONFIG_ARCH_BOARD=ntosd-dm320
+CONFIG_ARCH_BOARD_NTOSD_DM320=y
+CONFIG_BOARD_LOOPSPERMSEC=16945
+CONFIG_DRAM_SIZE=0x01000000
+CONFIG_DRAM_START=0x01000000
+CONFIG_DRAM_VSTART=0x00000000
+CONFIG_DRAM_NUTTXENTRY=0x01008000
+CONFIG_ARCH_STACKDUMP=y
+
+#
+# DM320 specific device driver settings
+#
+# CONFIG_UARTn_SERIAL_CONSOLE - selects the UARTn for the
+#   console and ttys0 (default is the UART0).
+# CONFIG_UARTn_RXBUFSIZE - Characters are buffered as received.
+#   This specific the size of the receive buffer
+# CONFIG_UARTn_TXBUFSIZE - Characters are buffered before
+#   being sent.  This specific the size of the transmit buffer
+# CONFIG_UARTn_BAUD - The configure BAUD of the UART.  Must be
+# CONFIG_UARTn_BITS - The number of bits.  Must be either 7 or 8.
+# CONFIG_UARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity
+# CONFIG_UARTn_2STOP - Two stop bits
+#
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_UART1_SERIAL_CONSOLE=n
+CONFIG_UART0_TXBUFSIZE=256
+CONFIG_UART1_TXBUFSIZE=256
+CONFIG_UART0_RXBUFSIZE=256
+CONFIG_UART1_RXBUFSIZE=256
+CONFIG_UART0_BAUD=115200
+CONFIG_UART1_BAUD=115200
+CONFIG_UART0_BITS=8
+CONFIG_UART1_BITS=8
+CONFIG_UART0_PARITY=0
+CONFIG_UART1_PARITY=0
+CONFIG_UART0_2STOP=0
+CONFIG_UART1_2STOP=0
+
+#
+# General OS setup
+#
+# CONFIG_EXAMPLE - identifies the subdirectory in examples
+#   that will be used in the build
+# CONFIG_DEBUG - enables built-in debug options
+# CONFIG_DEBUG_VERBOSE - enables verbose debug output
+# CONFIG_MM_REGIONS - If the architecture includes multiple
+#   regions of memory to allocate from, this specifies the
+#   number of memory regions that the memory manager must
+#   handle and enables the API mm_addregion(start, end);
+# CONFIG_HAVE_LOWPUTC - architecture supports low-level, boot
+#   time console output
+# CONFIG_TICKS_PER_MSEC - The default system timer is 100Hz
+#   or TICKS_PER_MSEC=10.  This setting may be defined to
+#   inform NuttX that the processor hardware is providing
+#   system timer interrupts at some interrupt interval other
+#   than 10 msec.
+# CONFIG_RR_INTERVAL - The round robin timeslice will be set
+#   this number of milliseconds;  Round robin scheduling can
+#   be disabled by setting this value to zero.
+# CONFIG_SCHED_INSTRUMENTATION - enables instrumentation in 
+#   scheduler to monitor system performance
+# CONFIG_TASK_NAME_SIZE - Spcifies that maximum size of a
+#   task name to save in the TCB.  Useful if scheduler
+#   instrumentation is selected.  Set to zero to disable.
+# CONFIG_START_YEAR, CONFIG_START_MONTH, CONFIG_START_DAY -
+#   Used to initialize the internal time logic.
+# CONFIG_JULIAN_TIME - Enables Julian time conversions
+# CONFIG_DEV_CONSOLE - Set if architecture-specific logic
+#   provides /dev/console.  Enables stdout, stderr, stdin.
+#
+#CONFIG_EXAMPLE=uip
+CONFIG_EXAMPLE=nettest
+CONFIG_DEBUG=n
+CONFIG_DEBUG_VERBOSE=n
+CONFIG_MM_REGIONS=1
+CONFIG_ARCH_LOWPUTC=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_INSTRUMENTATION=n
+CONFIG_TASK_NAME_SIZE=0
+CONFIG_START_YEAR=2007
+CONFIG_START_MONTH=2
+CONFIG_START_DAY=13
+CONFIG_JULIAN_TIME=n
+CONFIG_DEV_CONSOLE=y
+
+#
+# The following can be used to disable categories of
+# APIs supported by the OS.  If the compiler supports
+# weak functions, then it should not be necessary to
+# disable functions unless you want to restrict usage
+# of those APIs.
+#
+# There are certain dependency relationships in these
+# features.
+#
+# o mq_notify logic depends on signals to awaken tasks
+#   waiting for queues to become full or empty.
+# o pthread_condtimedwait() depends on signals to wake
+#   up waiting tasks.
+#
+CONFIG_DISABLE_CLOCK=n
+CONFIG_DISABLE_POSIX_TIMERS=n
+CONFIG_DISABLE_PTHREAD=n
+CONFIG_DISABLE_SIGNALS=n
+CONFIG_DISABLE_MQUEUE=n
+CONFIG_DISABLE_MOUNTPOINT=y
+CONFIG_DISABLE_ENVIRON=y
+
+#
+# Misc libc settings
+#
+# CONFIG_NOPRINTF_FIELDWIDTH - sprintf-related logic is a
+#   little smaller if we do not support fieldwidthes
+#
+CONFIG_NOPRINTF_FIELDWIDTH=n
+
+#
+# Allow for architecture optimized implementations
+#
+# The architecture can provide optimized versions of the
+# following to improve sysem performance
+#
+CONFIG_ARCH_MEMCPY=n
+CONFIG_ARCH_MEMCMP=n
+CONFIG_ARCH_MEMMOVE=n
+CONFIG_ARCH_MEMSET=n
+CONFIG_ARCH_STRCMP=n
+CONFIG_ARCH_STRCPY=n
+CONFIG_ARCH_STRNCPY=n
+CONFIG_ARCH_STRLEN=n
+CONFIG_ARCH_BZERO=n
+CONFIG_ARCH_KMALLOC=n
+CONFIG_ARCH_KZMALLOC=n
+CONFIG_ARCH_KFREE=n
+
+#
+# General build options
+#
+# CONFIG_RRLOAD_BINARY - make the rrload binary format used with
+#   BSPs from www.ridgerun.com
+#
+CONFIG_RRLOAD_BINARY=n
+
+#
+# Sizes of configurable things (0 disables)
+#
+# CONFIG_MAX_TASKS - The maximum number of simultaneously
+#   active tasks.  This value must be a power of two.
+# CONFIG_MAX_TASK_ARGS - This controls the maximum number of
+#   of parameters that a task may receive (i.e., maxmum value
+#   of 'argc')
+# CONFIG_NPTHREAD_KEYS - The number of items of thread-
+#   specific data that can be retained
+# CONFIG_NFILE_DESCRIPTORS - The maximum number of file
+#   descriptors (one for each open)
+# CONFIG_NFILE_STREAMS - The maximum number of streams that
+#   can be fopen'ed
+# CONFIG_NAME_MAX - The maximum size of a file name.
+# CONFIG_STDIO_BUFFER_SIZE - Size of the buffer to allocate
+#   on fopen. (Only if CONFIG_NFILE_STREAMS > 0)
+# CONFIG_NUNGET_CHARS - Number of characters that can be
+#   buffered by ungetc() (Only if CONFIG_NFILE_STREAMS > 0)
+# CONFIG_PREALLOC_MQ_MSGS - The number of pre-allocated message
+#   structures.  The system manages a pool of preallocated
+#   message structures to minimize dynamic allocations
+# CONFIG_MQ_MAXMSGSIZE - Message structures are allocated with
+#   a fixed payload size given by this settin (does not include
+#   other message structure overhead.
+# CONFIG_MAX_WDOGPARMS - Maximum number of parameters that
+#   can be passed to a watchdog handler
+# CONFIG_PREALLOC_WDOGS - The number of pre-allocated watchdog
+#   structures.  The system manages a pool of preallocated
+#   watchdog structures to minimize dynamic allocations
+# CONFIG_PREALLOC_TIMERS - The number of pre-allocated POSIX
+#   timer structures.  The system manages a pool of preallocated
+#   timer structures to minimize dynamic allocations.  Set to
+#   zero for all dynamic allocations.
+#
+CONFIG_MAX_TASKS=64
+CONFIG_MAX_TASK_ARGS=4
+CONFIG_NPTHREAD_KEYS=4
+CONFIG_NFILE_DESCRIPTORS=32
+CONFIG_NFILE_STREAMS=16
+CONFIG_NAME_MAX=32
+CONFIG_STDIO_BUFFER_SIZE=1024
+CONFIG_NUNGET_CHARS=2
+CONFIG_PREALLOC_MQ_MSGS=32
+CONFIG_MQ_MAXMSGSIZE=32
+CONFIG_MAX_WDOGPARMS=4
+CONFIG_PREALLOC_WDOGS=32
+CONFIG_PREALLOC_TIMERS=8
+
+#
+# TCP/IP and UDP support via uIP
+# CONFIG_NET - Enable or disable all network features
+# CONFIG_NET_IPv6 - Build in support for IPv6
+# CONFIG_NSOCKET_DESCRIPTORS - Maximum number of socket descriptors per task/thread.
+# CONFIG_NET_MAX_CONNECTIONS - Maximum number of TCP connections (all tasks)
+# CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks)
+# CONFIG_NET_SOCKOPTS - Enable or disable support for socket options
+# CONFIG_NET_BUFFER_SIZE - uIP buffer size
+# CONFIG_NET_LOGGING - Logging on or off
+# CONFIG_NET_UDP - UDP support on or off
+# CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off
+# CONFIG_NET_UDP_CONNS - The maximum amount of concurrent UDP connections
+# CONFIG_NET_STATISTICS - uIP statistics on or off
+# CONFIG_NET_PINGADDRCONF - Use "ping" packet for setting IP address
+# CONFIG_NET_RECEIVE_WINDOW - The size of the advertised receiver's window
+# CONFIG_NET_ARPTAB_SIZE - The size of the ARP table
+# CONFIG_NET_BROADCAST - Broadcast support
+# CONFIG_NET_LLH_LEN - The link level header length
+# CONFIG_NET_FWCACHE_SIZE - number of packets to remember when looking for duplicates
+CONFIG_NET=y
+CONFIG_NET_IPv6=n
+CONFIG_NSOCKET_DESCRIPTORS=8
+CONFIG_NET_MAX_CONNECTIONS=40
+CONFIG_NET_MAX_LISTENPORTS=40
+CONFIG_NET_SOCKOPTS=y
+CONFIG_NET_BUFFER_SIZE=420
+CONFIG_NET_LOGGING=y
+CONFIG_NET_UDP=y
+CONFIG_NET_UDP_CHECKSUMS=y
+#CONFIG_NET_UDP_CONNS=10
+CONFIG_NET_STATISTICS=y
+#CONFIG_NET_PINGADDRCONF=0
+#CONFIG_NET_RECEIVE_WINDOW=
+#CONFIG_NET_ARPTAB_SIZE=8
+CONFIG_NET_BROADCAST=n
+#CONFIG_NET_LLH_LEN=14
+#CONFIG_NET_FWCACHE_SIZE=2
+
+#
+# UIP Network Utilities
+# CONFIG_NET_DHCP_LIGHT - Reduces size of DHCP
+# CONFIG_NET_RESOLV_ENTRIES - Number of resolver entries
+CONFIG_NET_DHCP_LIGHT=n
+CONFIG_NET_RESOLV_ENTRIES=4
+
+#
+# Settings for examples/nettest
+CONFIG_EXAMPLE_NETTEST_IPADDR=(10<<24|0<<16|0<<8|2)
+CONFIG_EXAMPLE_NETTEST_DRIPADDR=(10<<24|0<<16|0<<8|1)
+CONFIG_EXAMPLE_NETTEST_NETMASK=(255<<24|255<<16|255<<8|0)
+CONFIG_EXAMPLE_NETTEST_CLIENTIP=(10<<24|0<<16|0<<8|1)
+
+#
+# DM90x0 Driver Settings
+CONFIG_NET_DM90x0=y
+CONFIG_DM9X_NINTERFACES=1
+CONFIG_DM9X_STATS=1
+CONFIG_DM9X_BASE=0xd0000300
+CONFIG_DM9X_IRQ=27
+CONFIG_DM9X_BUSWIDTH8=n
+CONFIG_DM9X_BUSWIDTH16=y
+CONFIG_DM9X_BUSWIDTH32=n
+CONFIG_DM9X_CHECKSUM=n
+CONFIG_DM9X_ETRANS=n
+
+#
+# Stack and heap information
+#
+# CONFIG_BOOT_FROM_FLASH - Some configurations support XIP
+#   operation from FLASH.
+# CONFIG_CUSTOM_STACK - The up_ implementation will handle
+#   all stack operations outside of the nuttx model.
+# CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
+# CONFIG_PROC_STACK_SIZE - The size of the initial stack
+# CONFIG_PTHREAD_STACK_MIN - Minimum pthread stack size
+# CONFIG_PTHREAD_STACK_DEFAULT - Default pthread stack size
+# CONFIG_HEAP_BASE - The beginning of the heap
+# CONFIG_HEAP_SIZE - The size of the heap
+#
+CONFIG_BOOT_FROM_FLASH=n
+CONFIG_CUSTOM_STACK=n
+CONFIG_STACK_POINTER=
+CONFIG_PROC_STACK_SIZE=4096
+CONFIG_PTHREAD_STACK_MIN=256
+CONFIG_PTHREAD_STACK_DEFAULT=4096
+CONFIG_HEAP_BASE=
+CONFIG_HEAP_SIZE=

configs/ntosd-dm320/src/Makefile

@@ -40,7 +40,7 @@ CFLAGS		+= -I$(TOPDIR)/sched
 
 ASRCS		= 
 AOBJS		= $(ASRCS:.S=$(OBJEXT))
-CSRCS		= up_leds.c
+CSRCS		= up_leds.c up_network.c
 COBJS		= $(CSRCS:.c=$(OBJEXT))
 
 SRCS		= $(ASRCS) $(CSRCS)

configs/ntosd-dm320/src/up_network.c

@@ -0,0 +1,104 @@
+/****************************************************************************
+ * board/up_network.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>
+#if defined(CONFIG_NET) && defined(CONFIG_NET_DM90x0)
+
+#include <sys/types.h>
+#include <debug.h>
+#include <arch/board/board.h>
+
+#include "up_arch.h"
+#include "up_internal.h"
+
+#include "dm320_memorymap.h"
+#include "dm320_emif.h"
+#include "dm320_gio.h"
+
+extern void dm9x_initialize(void);
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_netinitialize
+ ****************************************************************************/
+
+void up_netinitialize(void)
+{
+  /* CS4 is used for DM9000A Ethernet.  Interrupt is provided via GIO6
+   * which must be configured to interrupt on the rising edge.  Bus
+   * width is 16-bits.
+   */
+
+  lldbg("CS4CTRL1=%04x CS4CTRL2=%04x\n",
+        getreg16(DM320_EMIF_CS4CTRL1), getreg16(DM320_EMIF_CS4CTRL2));
+
+  /* It is assumed that bootloader has already configured CS4.  Here,
+   * we will only make certain that the GIO is properly configured
+   */
+
+  GIO_INPUT(GIO_DM9000A_INT);
+  GIO_NONINVERTED(GIO_DM9000A_INT);
+  GIO_INTERRUPT(GIO_DM9000A_INT);
+  GIO_RISINGEDGE(GIO_DM9000A_INT);
+
+  lldbg("GIO DIR0=%04x INV0=%04x IRQPORT=%04x IRQEDGE=%04x\n",
+        getreg16(DM320_GIO_DIR0), getreg16(DM320_GIO_INV0),
+        getreg16(DM320_GIO_IRQPORT), getreg16(DM320_GIO_IRQEDGE));
+
+  /* Then initialize the driver */
+
+  dm9x_initialize();
+}
+
+#endif /* CONFIG_NET && CONFIG_NET_DM90x0 */

configs/pjrc-8051/Make.defs

@@ -62,4 +62,9 @@ OBJEXT			= .rel
 LIBEXT			= .lib
 EXEEXT			= .hex
 
+HOSTCC			= gcc
+HOSTINCLUDES		= -I.
+HOSTCFLAGS		= -Wall -wstrict-prototypes -Wshadow -g -pipe
+HOSTLDFLAGS		=
+
 

configs/pjrc-8051/defconfig

@@ -149,6 +149,7 @@ CONFIG_DISABLE_PTHREAD=y
 CONFIG_DISABLE_SIGNALS=y
 CONFIG_DISABLE_MQUEUE=y
 CONFIG_DISABLE_MOUNTPOINT=y
+CONFIG_DISABLE_ENVIRON=y
 
 #
 # Misc libc settings
@@ -234,6 +235,52 @@ CONFIG_MAX_WDOGPARMS=2
 CONFIG_PREALLOC_WDOGS=4
 CONFIG_PREALLOC_TIMERS=0
 
+#
+# TCP/IP and UDP support via uIP
+# CONFIG_NET - Enable or disable all network features
+# CONFIG_NET_IPv6 - Build in support for IPv6
+# CONFIG_NSOCKET_DESCRIPTORS - Maximum number of socket descriptors per task/thread.
+# CONFIG_NET_MAX_CONNECTIONS - Maximum number of TCP connections (all tasks)
+# CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks)
+# CONFIG_NET_SOCKOPTS - Enable or disable support for socket options
+# CONFIG_NET_BUFFER_SIZE - uIP buffer size
+# CONFIG_NET_LOGGING - Logging on or off
+# CONFIG_NET_UDP - UDP support on or off
+# CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off
+# CONFIG_NET_UDP_CONNS - The maximum amount of concurrent UDP connections
+# CONFIG_NET_STATISTICS - uIP statistics on or off
+# CONFIG_NET_PINGADDRCONF - Use "ping" packet for setting IP address
+# CONFIG_NET_RECEIVE_WINDOW - The size of the advertised receiver's window
+# CONFIG_NET_ARPTAB_SIZE - The size of the ARP table
+# CONFIG_NET_BROADCAST - Broadcast support
+# CONFIG_NET_LLH_LEN - The link level header length
+# CONFIG_NET_FWCACHE_SIZE - number of packets to remember when looking for duplicates
+CONFIG_NET=n
+CONFIG_NET_IPv6=n
+CONFIG_NSOCKET_DESCRIPTORS=0
+CONFIG_NET_MAX_CONNECTIONS=40
+CONFIG_NET_MAX_LISTENPORTS=40
+CONFIG_NET_SOCKOPTS=y
+CONFIG_NET_BUFFER_SIZE=420
+CONFIG_NET_LOGGING=y
+CONFIG_NET_UDP=n
+CONFIG_NET_UDP_CHECKSUMS=y
+#CONFIG_NET_UDP_CONNS=10
+CONFIG_NET_STATISTICS=y
+#CONFIG_NET_PINGADDRCONF=0
+#CONFIG_NET_RECEIVE_WINDOW=
+#CONFIG_NET_ARPTAB_SIZE=8
+CONFIG_NET_BROADCAST=n
+#CONFIG_NET_LLH_LEN=14
+#CONFIG_NET_FWCACHE_SIZE=2
+
+#
+# UIP Network Utilities
+# CONFIG_NET_DHCP_LIGHT - Reduces size of DHCP
+# CONFIG_NET_RESOLV_ENTRIES - Number of resolver entries
+CONFIG_NET_DHCP_LIGHT=n
+CONFIG_NET_RESOLV_ENTRIES=4
+
 #
 # Stack and heap information
 #