From 85417c1a51ae433380fafd86b05806cd8929c54e Mon Sep 17 00:00:00 2001 From: patacongo Date: Fri, 1 Feb 2013 22:37:52 +0000 Subject: Prep for 6.25 release git-svn-id: http://svn.code.sf.net/p/nuttx/code/trunk@5594 42af7a65-404d-4744-a932-0658087f49c3 --- NxWidgets/ChangeLog.txt | 4 +- NxWidgets/ReleaseNotes.txt | 43 ++ apps/ChangeLog.txt | 10 +- nuttx/ChangeLog | 27 +- nuttx/Documentation/NuttX.html | 1207 +++++++++++++++++++++++++++------------- nuttx/ReleaseNotes | 320 +++++++++++ 6 files changed, 1191 insertions(+), 420 deletions(-) diff --git a/NxWidgets/ChangeLog.txt b/NxWidgets/ChangeLog.txt index 88e15d7db..7e2acdea1 100644 --- a/NxWidgets/ChangeLog.txt +++ b/NxWidgets/ChangeLog.txt @@ -219,7 +219,7 @@ * NxWidgets::CNxWidgets and NxWM::CStartWindow: Small changes to make sub- classing easier (from Petteri Aimonen). -1.5 2013-xx-xx Gregory Nutt +1.5 2013-02-01 Gregory Nutt * NxWidgets::CGraphicsPort::move(): Fix typo bug in bounding rectangle calculation (from Petteri Aimonen). @@ -266,3 +266,5 @@ This widget provides a tab panel, which has a button bar at the top and panels below it. Pressing a button will select the corresponding panel. + +1.6 2013-xx-xx Gregory Nutt diff --git a/NxWidgets/ReleaseNotes.txt b/NxWidgets/ReleaseNotes.txt index aaaefe6eb..431d2796c 100644 --- a/NxWidgets/ReleaseNotes.txt +++ b/NxWidgets/ReleaseNotes.txt @@ -144,3 +144,46 @@ Bugfixes (see the change log for details). Some of these are very important * NxWidgets:CText and NxWidgets:CNumericEdite: Fix some memory freeing bugs * NxWidgets::CScrollingPanel: It is borderless for now because there was no easy way to redraw only the required part of the border. + +NxWidgets-1.5 +============= + +The 6th release of the NxWidgets package was made on February 1, 2013. This +release depends on NuttX-6.25 or above and should not be used with older +NuttX releases. This release corresponds to SVN revision r5594. + +Note: Nearly all of the changes between 1.4 and 1.5 were the result of the +efforts of Petteri Aimonen. + +Additional new features and extended functionality in Version 1.5: + +* CNxWidgets::CTabPanel: A new widget contributed by Petteri Aimonen. + This widget provides a tab panel, which has a button bar at the top + and panels below it. Pressing a button will select the corresponding + panel. +* NxWidgets::CGraphicsPort: Many times we only want a constant background. + In that case the old code filled the background, read it back, rendered + the text and then wrote it back. When used with an LCD this causes + some screen flicker. Added a variant of drawText that takes background + color, so that the background and text can both be rendered at one go. +* NxWM::CScrollingPanel::scrollChildren(): Avoid unnecessary redraws in + CScrollingPanel +* Kconfig: Added several "enabling" settings that must be selected to + override the default setting. +* UnitTests: Changes for compatibility with NuttX-6.25 + +Bugfixes: + +* NxWidgets::CGraphicsPort::move(): Fix typo bug in bounding rectangle + calculation. +* NxWM::CCycleButton: Remove the separator from CCycleButton. It draws in + wrong place, and doesn't look very good in the correct place either. +* NxWidgets::CLabel: The label was drawn as a single rectangular region, + then a text was added to the on top of this. The result is that the + text would flicker when the CLabel was updated. With this change, the + two step update is replaced with a five step update: The background + is updated as four rectangulear regions (leaving the previous text in + place), then the new text is updated. This eliminates the flicker. +* CGraphicsPort::_drawText: Renamed from CGraphicsPort::drawText in order + to eliminate some naming collisions when overloaded in some configurations + (i.e., when both bool and nx_pixel_t are uint8_t). diff --git a/apps/ChangeLog.txt b/apps/ChangeLog.txt index e64509be9..05cd6176a 100644 --- a/apps/ChangeLog.txt +++ b/apps/ChangeLog.txt @@ -434,7 +434,7 @@ tests will now use a relative path to the program and expect the binfmt/ logic to find the absolute path to the program using the PATH variable. -6.25 2013-xx-xx Gregory Nutt +6.25 2013-02-01 Gregory Nutt * Makefiles: Removed dependency of distclean on clean in most top-level files. It makes sense for 'leaf' Makefiles to have this dependency, @@ -461,7 +461,7 @@ the USB HID keyboard report data. * apps/examples/wlan: Remove non-functional example. * apps/examples/ostest/vfork.c: Added a test of vfork(). - * apps/exampes/posix_spawn: Added a test of poxis_spawn(). + * apps/exampes/posix_spawn: Added a test of posix_spawn(). * apps/examples/ostest: Extend signal handler test to catch death-of-child signals (SIGCHLD). * apps/examples/ostest/waitpid.c: Add a test for waitpid(), waitid(), @@ -478,7 +478,7 @@ * apps/include/builtin.h: Some of the content of apps/include/apps.h moved to include/nuttx/binfmt/builtin.h. apps/include/apps.h renamed builtin.h - * apps/builtin/exec_builtins.c: Move utility builtin + * apps/builtin/exec_builtins.c: Move builtin utility functions from apps/builtin/exec_builtins.c to binfmt/libbuiltin/libbuiltin_utils.c * apps/nshlib/nsh_mountcmds.c: The block driver/source @@ -502,6 +502,8 @@ once when NSH starts; the .nshrc script will be executed for each session: Once for serial, once for each USB connection, once for each Telnet session. - * apps/system/readline: Correct realine return value. Was not + * apps/system/readline: Correct readline() return value. Was not any returning special values when end-of-file or read errors occur (it would return an empty string which is not very useful). + +6.26 2013-xx-xx Gregory Nutt diff --git a/nuttx/ChangeLog b/nuttx/ChangeLog index db62b9cf4..e2e7ae29b 100644 --- a/nuttx/ChangeLog +++ b/nuttx/ChangeLog @@ -3800,7 +3800,7 @@ * configs/stm32f4discovery/elf: Enable support/test of the PATH to find executables using a relative path. -6.25 2013-xx-xx Gregory Nutt +6.25 2013-02-01 Gregory Nutt * graphics/: Adds 5x8 monospace font. This tiny font is useful for graph labels and for small bitmapped display. Contributed by Petteri @@ -3833,7 +3833,7 @@ * drivers/usbhost/usbhost_hidkbd.c: Correct a logic error in how tasks waiting for read data are awakened. * libc/misc/lib_kbdencode.c and lib_kbddecode.c: Now handles keypress - events too. However, the USB HID keyboard drier has not yet been + events too. However, the USB HID keyboard driver has not yet been updated to detect key release events. That is kind of tricky in the USB HID keyboard report data. * configs/mcu123-214x/nsh: Converted to use the kconfig-frontends @@ -3857,7 +3857,7 @@ buildroot toolchains: They may be EABI or OABI. * include/nuttx/progmem and arch/arm/src/stm32/stm32_flash.c: Fix a counting bug plus change interface to use either relative - or absolut FLASH addressing (from Freddie Chopin). + or absolute FLASH addressing (from Freddie Chopin). * libc/misc/Make.defs: Fix error in conditional for KBD CODEC. * libc/Kconfig and configs/*/defconfig (several): The default setting should be CONFIG_LIB_KBDCODEC=n @@ -3868,7 +3868,7 @@ * tools/configure.bat: configure.bat is a small Windows batch file that can be used as a replacement for configure.sh in a Windows native environment. configure.bat is actually just a - thin layer that execuates configure.exe if it is available. If + thin layer that executes configure.exe if it is available. If configure.exe is not available, then configure.bat will attempt to build it first. * arch/arm/src/lpc17xx/lpc17_syscon.h: Correct some typos in bit @@ -3918,12 +3918,12 @@ the scenario: (1) sched_lock() is called increments the lockcount on the current TCB (i.e., the one at the head of the ready to run list), (2) sched_mergepending is called which may change the task - at the head of the readytorun list, then (2) sched_unlock() is called + at the head of the ready-to-run list, then (3) sched_unlock() is called which decrements the lockcount on the wrong TCB. The failure case that I saw was that pre-emption got disabled in the IDLE thread, locking up the whole system. * sched/sched_waitpid.c: Use SIGCHLD instead of a semaphore. This - is a much more spec-compliant implemenation. However, there are + is a much more spec-compliant implementation. However, there are some issues with overruning signals because NuttX does not support queueing of signals (POSIX does not require it). I think it may need to. @@ -3959,7 +3959,7 @@ CONFIG_APPS_BINDIR rename CONFIG_FS_BINFS * include/nuttx/binfmt/builtin.h: Some of the content of apps/include/apps.h moved to include/nuttx/binfmt/builtin.h - * binfmt/libbuiltin/libbuiltin_utils.c: Move utility builtin + * binfmt/libbuiltin/libbuiltin_utils.c: Move builtin utility functions from apps/builtin/exec_builtins.c to binfmt/libbuiltin/libbuiltin_utils.c * binfmt/builtin.c and binfmt/libbuiltin: Add a binary "loader" @@ -3985,7 +3985,7 @@ * arch/arm/src/[many]: More LPC1788 definitions from Rommel Marcelo incorporated. * configs/open1788: Board configuration for the Wave Share - Open1788 board. Still fragmentary (contribnuted by Rommel + Open1788 board. Still fragmentary (contributed by Rommel Marcelo, adapted to use kconfig-frontends. * net/send(): Add logic to work around delayed ACKs by splitting packets (contributed by Yan T.). @@ -4011,7 +4011,7 @@ * arch/armv7-m/up_hardfault.c: Fail if a hardfault occurs while CONFIG_ARM7VM_USEBASEPRI=y. * arch/arm/src/stm32/stm32_serial.c: Add support for USART - single wire more (Contributed by the PX4 team). + single wire mode (Contributed by the PX4 team). * sched/: Implement support for retaining child task status after the child task exists. This is behavior required by POSIX. But in NuttX is only enabled with CONFIG_SCHED_HAVE_PARENT and @@ -4022,7 +4022,7 @@ use the kconfig-frontends tools. * net/net_poll.c: Split net_poll() to create psock_poll() too. * net/net_poll.c: Fix poll/select issure reported by Qiang: - poll_interrupt() must cat call net_lostconnection() when a + poll_interrupt() must call net_lostconnection() when a loss of connection is reported. Otherwise, the system will not know that the connection has been lost. * sched/group_create.c, group_join.c, and group_leave.c: Add @@ -4051,7 +4051,7 @@ * configs/stm32f4discovery/nsh: Converted to use the kconfig-frontends tools. * configs/*/src/up_userleds.c: Fix a error that was cloned into - all STM32 user LED code. The wrong defintions were being used + all STM32 user LED code. The wrong definitions were being used to set LEDs on or off. * arch/*/common/up_internal.h and arch/*/common/up_initialize.c: Serial was driver was not being built if there is no console @@ -4072,8 +4072,7 @@ * drivers/serial/serial.c, include/nuttx/serial/serial.h, drivers/usbdev/cdcacm.c, and drivers/pl2303.c: Add support for removable serial devices (like USB serial). This support is enabled - by CONFIG_SERIAL_REMOVABLE and requires VBUS sensing support from - the board-specific logic. + by CONFIG_SERIAL_REMOVABLE. * arch/*/src/*/Toolchain.defs: Change assignment so that we can override CROSSDEV with a make command line argument. * include/assert.h: Mark assertion functions as non-returning. @@ -4096,3 +4095,5 @@ * arch/arm/src/stm32/stm32_spi.c: Fixes for SPI DMA work on the STM32F4. Includes untested additions for the F1 implementation as well. From Petteri Aimonen. + +6.26 2013-xx-xx Gregory Nutt diff --git a/nuttx/Documentation/NuttX.html b/nuttx/Documentation/NuttX.html index c5f1ebc9c..b4015bab7 100644 --- a/nuttx/Documentation/NuttX.html +++ b/nuttx/Documentation/NuttX.html @@ -8,7 +8,7 @@

NuttX RTOS

-

Last Updated: January 4, 2013

+

Last Updated: February 2, 2013

@@ -456,6 +456,13 @@
  • ROMFS filesystem support.

    • + +
    + +

    +

  • BINFS pseudo-filesystem support.
    • +

    +
    @@ -468,6 +475,9 @@ Separately linked NXFLAT modules. NXFLAT is a binary format that can be XIP from a file system. +
  • + "Built-In" applications.
    • +

    @@ -1054,311 +1064,594 @@ -

    NuttX-6.24 Release Notes

    +

    nuttx-6.25 Release Notes

    - The 91st release of NuttX, Version 6.24, was made on December 20, 2012, and is available for download from the + The 92nd release of NuttX, Version 6.25, was made on February 1, 2013, and is available for download from the SourceForge website. - Note that the release consists of two tarballs: nuttx-6.24.tar.gz and apps-6.24.tar.gz. + Note that the release consists of two tarballs: nuttx-6.25.tar.gz and apps-6.25.tar.gz. Both may be needed (see the top-level nuttx/README.txt file for build information) The change log associated with the release is available here. Unreleased changes after this release are available in SVN. These unreleased changes are also listed here.

    - This release corresponds with SVN release number: r5447, + This release corresponds with SVN release number: r5594, Note that all SVN information has been stripped from the tarballs. If you need the SVN configuration, you should check out directly from SVN. - Revision r5447 should equivalent to release 6.24 of NuttX: + Revision r5594 should equivalent to release 6.25 of NuttX: 

      -svn checkout -r5447 svn://svn.code.sf.net/p/nuttx/code/trunk nuttx-code
+svn checkout -r5594 svn://svn.code.sf.net/p/nuttx/code/trunk nuttx-code

    Or (HTTP):

      -svn checkout -r5447 http://svn.code.sf.net/p/nuttx/code/trunk nuttx-code
+svn checkout -r5594 http://svn.code.sf.net/p/nuttx/code/trunk nuttx-code

    Additional new features and extended functionality

    -

    • - RTOS: + OS Initialization +

      +
        +
      • + Removed support for CONFIG_BUILTIN_APP_START. + This is not really a useful feature and creates a violation of the OS layered architecture. +
      +
      • +
    • +

      + Task Creation +

      +
        +
      • + Implement a simple vfork()). + In NuttX-6.25, this interface is available only for ARM7/9, ARMv7-M (Cortext-M3/4), and MIPS32 (PIC32MX) platforms. +
        • +
      • + exec() now sets the priority of the new task to the same priority as the parent task (instead of the arbirtrary value of 50). +
        • +
      • + New, partially complient implementations of execv() and execl(). + These are only partially compliant because they do not overlay any existing "process space" but rather create the new task and exit(). +
        • +
      • + Add a complete implementation of posix_spawn(). + This standard interface is a better match for an MMU-less architecture than are vfork()) plus execv() or execl(). +
        • +
      • + Add a task start hook that will be called before the task main executes. + This can be used, for example, to schedule C++ static constructors to run automatically in the context of the new task. +
        • +
      +
      • +
    • +

      + Task Parentage

      • - Implemented the POSIX pause() function (still has some compiance issues). + Repartitioned tasking data structures. + All shared resources are now collected together in a "task group". + A "task group" includes the resource for the original task that are shared with all of the pthreads created by the task. +
        • +
      • + Added support for remember the parent "task group" when a new task is started. +
        • +
      • + Added optional support to record the membership of each thread in the "task group".
      • - Tasking logic is extended to support the notion of address environments. - An address environment is the key notion underlying "process" vs. tasks. - If tasks are created with address environments (by binfmt), the OS will propogate that environment to child threads and will destroy the address environment when all threads in the "process" exists. + Implement support for retaining child task status in the "task group" after the child task exists. + This is behavior required by POSIX. + But in NuttX is only enabled with CONFIG_SCHED_HAVE_PARENT and CONFIG_SCHED_CHILD_STATUS.
      • - If support for the PATH variable is enabled, the OS start up logic will create an initial environment containing the default PATH setting (CONFIG_PATH_INITIAL). - This initial PATH will then be inherited by all tasks. + Add internal logic to "reparent" a task. + This is useful, for example, where the child task is created through a trampoline task that redirects I/O. + Reparenting allows the caller of posix_spawn() to be reparented for the eventual child thread. +
        • +
      • + Added support for SIGCHLD. + Sent to all members of the parent "task group" when the finall member of the child task group exits. +
        • +
      • + If SIGCHLD and retention of child task exist status are enabled, then a more spec-compliant version of waitpid() is enabled. +
        • +
      • + New interfaces waitid() and wait() are also enabled when SIGCHLD is enabled.

    • - Binfmt: + File System

      • - The NuttX binary loaders have been updated to support the PATH environment variable. - Now, if the PATH is properly defined, programs can be executed from mass storage using only the file name. - This feature is added to support more standard behavior (eventually, NSH will support execution of programs in file systems by just entering the file name, perhaps in 6.25?). + dup() and dup2() can new be used with opened files in a mounted file system. + This supports re-direction of output in NSH to files. +
        • +
      • + The binfs file system was moved from apps/builtin to fs/binfs. + The binfs file system was extended to support execution of "builtin applications" using exec(), execv(), execl(), or posix_spawn().
      • - The NXFLAT and ELF binary loaders have been extended to create address environments for any new tasks executed from the file system. - This feature requires that the architecture support a memory management unit (MMU) and the address environment interfaces declared in include/nuttx/arch.h (currently, this is only supported by the z180). + Added logic based on SIGCHLD to automatically unload and clean-up after running a task that was loaded into memory.

    • - Drivers: - LCD driver for the Univision UG-2864AMBAG01 OLED + Binary Formats +

      +
        +
      • + Much of the logic for "builtin applications" was moved from apps/builtin to nuttx/binfmt/libbuiltin. + Includes some extensions contributed by Mike Smith. +
        • +
      • + A binary loader was added for builtin applications to support execution of "builtin applications" using exec(), execv(), execl(), or posix_spawn(). +
        • +

    • - STM32: - Support for STM32F100 high density chips contributed by Freddie Chopin. + Drivers +

      +
        +
      • + Added logic to marshal and serialized "out-of-band" keyboard commands (such as cursor controls and key release events) intermixed with normal ASCII keypress data. + The encoding is partially integrated in the HID keyboard driver and the decoding is fully integrated into the apps/examples hidkbd/ and keypadtest/ (the latter contributed by Denis Carlikli). +
        • +
      • + Driver for the UG-2864HSWEG01 OLED contributed by Darcy Gong. +
        • +
      • + Add support for removable serial devices (like USB serial). + This support is enabled by CONFIG_SERIAL_REMOVABLE. +
        • +

    • - STM32 Drivers: - Added optional RS-485 direction bit control (from Freddie Chopin). + ARMv7-M +

      +
        +
      • + Added an option to use the BASEPRI register to disable interrupts (instead of the PRIMASK register). + This eliminates some innocuous hardfaults that interfere with some debug tools. + You need to switch to the BASEPRI method only if you have such tool interference. +
        • +

    • - STM32 Boards: + STM32 Drivers

      • - Support for generic STM32F100RC board contributed by Freddie Chopin. + Bring STM32 F1 DMA capabilities up to par with the STM32 F2/F4 (contributed by Mike Smith).
      • - stm32f4discovery/nxlines: STM32F4Discovery support for the UG-2864AMBAG01 OLED. + Add support for USART single wire mode (Contributed by the PX4 team).
      • - stm32f4discovery/winbuild: A version of the NuttX OS test configured to build natively on Windows. + Updates to support for SPI DMA on the STM32 F1/F2/F4. + From Petteri Aimonen.
        • +
      +
      • +
    • +

      + STM32 Boards +

      +
      • - stm32f4discovery/elf: Now uses the PATH variable to find ELF executables. + New configuration to support the UG-2864HSWEG01 OLED on the STM32F4Discovery board.
      • - configs/cloudctrl: Added for Darcy Gong's CloudController board + Added a posix_spawn() test configuration for the STM32F4Discovery.

    • - PIC32 Boards: - Update the Mirtoo configuration for Release 2 of the Mirtoo module. + LM3S/LM4F +

      +
        +
      • + Files and directories repartitioned to support both LM3S and LM4F using the STM32 organization as a model. +
        • +
      • + Partial definitions for the LM4F contributed by Jose Pablo Carballo (this is still a work in progress). +
        • +

    • - Calypso: - Add Calypso keypad driver (from Denis Carilki). + LM3S Boards +

      +
        +
      • + Added scripts and documentation to use OpenOCD with the LM3S (from Jose Pablo Carballo). +
        • +

    • - ZiLOG: + LPC176x/LPC178x

      • - Add support for the z180 chip family and, specifically, for the P112 retro hardware (see http://p112.feedle.net/). + Files and directories repartitioned to support both LPC175x/LPC176x and the LPC177x/LPC178x families using the STM32 organization as a model. + The LPC1788 port is a work in progress by Rommel Marcelo.
        • +
      +
      • +
    • +

      + LPC176x/LPC178x Boards +

      +
      • - All ZiLOG configurations updated to use the current ZDS-II and/or SDCC toolchains. + Added a configuration to support the Wave Share Open1788 board. + This is still a work in progress by Rommel Marcelo.

    • - Graphics: + LPC2148 Boards

      • - Add a semaphore handshake so that operations on buffers from the NXMU client will be blocked until the NX server operates on the buffer data (from Petteri Aimonen). + Add basic support for the The0.net ZP213x/4xPA board (with the LPC2148 and the UG_2864AMBAG01 OLED).
      • - nxtk_subwindowmove() and nxtk_getwindow(): Improvements to clipping logic from Petteri Aimonen. -
        • + Add an nxlines configuration for the ZP213x/4xPA (with the LPC2148 and the UG_2864AMBAG01). +

    • - C Library: - lib/ sub-directory renamed libc/ (there is a new lib/ sub-directory that is used to hold all archives). + Simulator +

      +
        +
      • + Add an nxlines configuration for the simulator. +
        • +

    • - C++: - Exception stubs from Petteri Aimonen. + Networking +

      +
        +
      • + Add logic to work around delayed ACKs by splitting packets (contributed by Yan T.). +
        • +
      • + Split net_poll() to create the internal interface psock_poll(). +
        • +

    • - Applications: + LCDs

      • - Add NSH hexdump command to dump the contents of a file (or character device) to the console (contributed by Petteri Aimonen). -
        • -
      • - Extend the NSH ifconfig command plus various DHCPC improvements (from Darcy Gong). + Added support for LCD1602 alphanumeric LCD (HD4468OU controller).

    • - apps/examples: + Graphics

      • - ostest: Replace large tables with algorithmic prime number generation. - This allows the roundrobin test to run on platforms with minimal SRAM (Freddie Chopin). + Added 5x8 monospace font. + This tiny font is useful for graph labels and for small bitmapped display. + Contributed by Petteri Aimonen.
        • +
      +
      • +
    • +

      + Build System +

      +
      • - keypadtest: A new keypad test example contributed by Denis Carikli. + Add an options to better manage toolchain prefixes.
      • - elf and nxflat: If CONFIG_BINFMT_EXEPATH is defined, these examples will now use a relative path to the program and expect the binfmt/ logic to find the absolute path to the program using the PATH variable. + Redesigned how the context targer works in the apps/ directory. + The old design caused lots of problems when changing configurations because there is no easy way to get the system to rebuild the context. + This change should solve most the problems and eliminate questions like "Why don't I see my builtin application in NSH?"

    • - Build system: + Kconfig Files

      • - New top-level Makefiles: Makefile.unix and Makefile.win (along with numerous changes to other make-related files). - This adds basic support for building NuttX natively under from Windows console (rather than in a POSIX-like environment). - This build: (1) Uses all Windows style paths, (2) Uses primarily standard Windows batch commands with (3) a few additional commands from GNUWin32 (such as GNU make). + There are several new configurations that use the kconfig-frontends tools and several older configurations that have been converted to use these tools. + There is still a long way to go before the conversion is complete:

        -

        - This capability should still be considered a work in progress because: (1) It has not been verfied on all targets and tools, and (2) it still lacks some of the creature-comforts of the more mature environments (like a functional configure.sh script and make menuconfig support). +

          +
        • + configs/sim/nxwm +
          • +
        • + configs/sim/nsh +
          • +
        • + configs/stm3220g-eval/nxwm +
          • +
        • + configs/stm32f4discovery/posix_spawn +
          • +
        • + configs/olimex-lpc1766stk/nsh +
          • +
        • + configs/olimex-lpc1766stk/hidkbd +
          • +
        • + configs/olimex-lpc1766stk/nettest +
          • +
        • + configs/open1788/ostest +
          • +
        • + configs/stm32f4discovery/nsh +
          • +
        • + configs/stm32f4discovery/usbnsh +
          • +
        • + configs/lm326965-ek (all configurations) +
          • +
        • + configs/mcu123-214x/nsh +
          • +
        • + configs/ubw32/ostest +
          • +
        • +
      +
      • +
    • +

      + Tools +

      +
      • - Example Windows native builds for STM32F4Discovery, eZ80, z16f, z8, Z80, and Z180. + tools/kconfig.bat: Kludge to run kconfig-frontends from a DOS shell.
      • - Several configurations have been converted to work the kconfig-frontends mconf configuration tool: stm32f4discovery/nxlines, and all eZ80, z16f, z8, Z80, and Z180 configurations. + tools/configure.c: configure.c can be used to build a work-alike program as a replacement for configure.sh. + This work-alike program would be used in environments that do not support Bash scripting (such as the Windows native environment).
      • - Architectures now include a common Toolchain.defs file that can be used to manage toolchains in a more configurable way (most of this contributed by Mike Smith). + tools/configure.bat: configure.bat is a small Windows batch file that can be used as a replacement for configure.sh in a Windows native environment. + configure.bat is actually just a thin layer that executes configure.exe if it is available. + If configure.exe is not available, then configure.bat will attempt to build it first (assumes the MinGW-GCC is available).

    • - Build tools: + Applications

      • - Renamed tools/winlink.sh to tools/copydir.sh. + New and modified examples: +

        +

          +
        • + apps/examples/wlan: Remove non-functional example. +
          • +
        • + apps/examples/ostest: Added a test of vfork()). + Extend signal handler test to catch death-of-child signals (SIGCHLD). + Add a test for waitpid(), waitid(), and wait(). +
          • +
        • + apps/exampes/posix_spawn: Added a test of posix_spawn(). +
          • +
        +

      • - Several new tools/scripts to support the Windows native build: tools/mkdeps.bat, tools/mkdeps.c, tools/link.bat, tools/unlink.bat, and tools/ copydir.bat. + NSH: +

        +

          +
        • + NSH now supports re-direction of I/O to files (but still not from). +
          • +
        • + The block driver source argument to the mount command is now optional for file systems that do not require a block driver. +
          • +
        +

        +
        • +
      • + NSH can now execute a program from a file system using posix_spawn(). +
        • +
      • + Added support for a login script. + The init.d/rcS script will be executed once when NSH starts; + the .nshrc script will be executed for each session: + Once for a serial console, once for each USB connection, and once for each Telnet session.
      • - tools/incdir.sh and tools/incdir.bat now support an -s option to generate system header file paths. + Supports a new daemon that can be used to monitor USB trace outpout.
      • - tools/b16.c: Fixed precision math conversion utility. + Removed non-functional wlan example.
    -

    Bugfixes (see the change log for details). - Some of these are very important (marked critical): + Some of these are very important:

    • - RTOS: - Fix some backward conditional compilation in the work queue logic (Freddie Chopin). + Tasking +

      +
        +
      • + Fixed a *critical* task exit bug. + Here is the failure scenario: + (1) sched_lock() is called increments the lockcount on the current TCB (i.e., the one at the head of the ready to run list), + (2) sched_mergepending() is called which may change the task at the head of the ready-to-run list, then + (3) sched_unlock() is called which decrements the lockcount on the wrong TCB. + The failure case that I saw was that pre-emption got disabled in the IDLE thread, locking up the whole system. +
        • +

    • - File System: - Uninitialized variable caused assertions (from Lorenz Meier). + Signals +

      +
        +
      • + sigtimedwait() would return a bad signal number if the signal was already pending when the function was called. +
        • +

    • - Drivers: - Partial fix for STM32 OTG FS device drivers and fix for short, unaligned writes in the flash translation layer (drivers/mtd/ftl.c), both from Petteri Aimonen. + Drivers +

      +
        +
      • + Some SD cards will appear busy until switched to SPI mode for first time. + Having a pull-up resistor on MISO may avoid this problem, but this fix from Petteri Aimonen makes it work also without pull-up. +
        • +

    • - STM32 Drivers: + STM32 Drivers

      • - Qencoder driver and TIM3 driver fixes from Ryan Sundberg. + STM32 FLASH driver counting error (from Freddie Chopin).
      • - Fix timeout delay calculation in the STM32 OTG FS host driver. + STM32 F4 maximum SPI frequency was wrong (corrected by Petteri Aimonen).

    • - LPC17xx Drivers: - Resources not being properly released when I2C driver is un-initialized. + STM32 Boards +

      +
        +
      • + Due to cloning of untested code, the logic to control on-board LEDs did not work on any STM32 boards. +
        • +
      • + Serial devices number /dev/ttyS0-5 is there is a serial console, but /dev/ttyS1-6 if there is no serial console. +
        • +

    • - Graphics: + Binary Formats

      • - Fix logic when the mouse drags outside of the window; fix another "blocked message" handling case (both from Petteri Aimonen). + C++ static constructors execute now using a start taskhook so that they execute in the context of the child task (instead of in the context of the parent task).
        • +
      +
      • +
    • +

      + File Systems +

      +
      • - nxtk_filltrapwindow(): Correct an offset problem (also from Peterri Aimonen). + Several FAT-related bugs fixed by Petteri Aimonen.
        • +
      +
      • +
    • +

      + Networking +

      +
      • - nxglib_splitline(): Correct the "fat flat line" bug. + Fix poll/select issure reported by Qiang: poll_interrupt() must call net_lostconnection() when a loss of connection is reported. + Otherwise, the system will not remember that the connection has been lost and will hang waiting on a unconnected socket later. +
        • +
      • + Similar issues corrected for recvfrom() and send(). +
        • +
      • + Telnetd would hang in a loop if recv() ever returned a value <= 0.

    • - C Library: + Libraries

      • - nrand() changes to prevent coefficients from becoming zero which would "lock up" the random number generate. + fread() could hang on certain error conditions.
      • - Add rounding functions to the math library (contributed by Petteri Aimonen). + Can't handle SYSLOG output to a character device from the IDLE task (because the IDLE task can't block).

    • - Build system: - Changes to MIN definitions in all limit.h header files to avoid integer overflows. - For example from (-128) to (-127 - 1) (from Petteri Aimonen). + Build System +

      +
        +
      • + Serial was driver was not being built if there is no console device. + Obviously, the serial driver may be needed even in this case. +
        • +

    • - Applications: - Modbus fixes from Freddie Chopin. + Additional Bugfixes +

      +
        +
      • + sig_timedwait() and clock_time2ticks.c: Timing "rounding" logic +
        • +
      • + ARM9 Compilation issue with low vectors. +
        • +
      • + readline() return value +
        • +
      • + As well as other, less critical bugs as detailed in the ChangeLog: HID keyboard, LPC17xx bit definitions, strndup(), PL2303, SYSLOG error handling, AT25, apps/examples. +
        • +
    -

    - As well as other, less critical bugs. See the ChangeLog for additional, detailed changes.

    @@ -3432,311 +3725,421 @@ Other memory: 
      -nuttx-6.24 2012-12-20 Gregory Nutt <gnutt@nuttx.org>
-
-    * arch/arm/src/stm32:  Support for STM32F100 high density chips
-      added by Freddie Chopin.
-    * configs/stm32f100_generic:  Support for generic STM32F100RC board
-      contributed by Freddie Chopin.
-    * arch/arm/src/stm32_otgfsdev.c:  Partial fix from Petteri Aimonen.
-    * drivers/lcd/ug-2864ambag01.c and include/nuttx/lcd/ug_2864ambag01.h:
-      LCD driver for the Univision OLED of the same name (untested on
-      initial check-in).
-    * configs/stm32f4discovery/nxlines:  Configure to use mconf/Kconfig
-      tool.
-    * configs/stm32f4discovery/src/up_ug2864ambag01.c:  Board-specific
-      initialization for UG-2864AMBAG01 OLED connecte to STM32F4Disovery.
-    * libxx/libxx_stdthrow.cxx:  Exception stubs from Petteri Aimonen.
-    * configs/stm32f4discovery/src/up_ug2864ambag01.c: Driver has been
-      verified on the STM32F4Discovery platform.  Some tuning of the
-      configuration could improve the presentation.  Lower resolution displays
-      are also more subject to the "fat, flat line bug" that I need to fix
-      someday.  See http://www.nuttx.org/doku.php?id=wiki:graphics:nxgraphics
-      for a description of the fat, flat line bug.
-    * libc:  Renamed nuttx/lib to nuttx/libc to make space for a true lib/
-      directory that will be forthcoming.  Also rename libraries:  liblib.a -> libc.a,
-      libulib.a -> libuc.a, libklib.a -> libkc.a, liblibxx.a ->libcxx.a.
-      (I will probably, eventually rename libxx to libcxx for consistency)
-    * Makefile, lib/: A new, empty directory that will hold generated libraries.
-      This simplifies the library patch calculations and lets me get rid of some
-      bash logic.  The change is functional, but only partially complete;
-      additional logic is needed in the arch/*/src/Makefile's as well.  Right
-      now that logic generate multiple library paths, all pointing to the lib/
-      directory.
-    * arch/*/src/Makefile:  Now uses only the libraries in lib/
-      Replace bash fragments that test for board/Makefile.
-    * Makefile.win:  The beginnings of a Windows-native build.  This is just
-      the beginning and not yet ready for prime time use.
-    * configs/stm32f4discovery/winbuild:  This is a version of the standard
-      NuttX OS test, but configured to build natively on Windows.  Its only
-      real purpose is to very the native Windows build logic.
-    * tools/mkdeps.bat and tools/mkdeps.c:  mkdeps.bat is a failed attempt
-      to leverage mkdeps.sh to CMD.exe.  It fails because the are certain
-      critical CFLAG values that cannot be passed on the CMD.exe command line
-      (like '=').  mkdeps.c is a work in progress that will, hopefully,
-      replace both mkdeps.sh and mkdeps.bat.
-    * tools/Config.mk:  Centralize the definition of the script that will be
-      used to generated header file include paths for the compiler.  This
-      needs to be centralized in order to support the Windows native build.
-    * tools/incdir.bat:  A replacement for tools/incdir.sh for use with the
-      the Windows native build.
-    * Makefile.unix:  The existing top-level Makefile has been renamed
-      Makefile.unix.
-    * Makefile:  This is a new top-level Makefile that just includes
-      either Makefile.unix or Makefile.win
-    * configs/stm3240g-eval/src:  Qencoder fixes from Ryan Sundberg.
-    * arch/arm/src/stm32/stm32_qencoder.c: TIM3 bug fix from Ryan Sundberg.
-    * tools/mkromfsimg.sh: Correct typo in an error message (Ryan Sundberg)
-    * arch/*/src/Makefile:  Remove tftboot install and creation of System.map
-      for Windows native build.  The first is a necessary change, the second
-      just needs re-implemented.
-    * configs/mirtoo: Update Mirtoo pin definitions for Release 2.  Provided
-      by Konstantin Dimitrov.
-    * Fixed an uninitialized variable in the file system that can cause 
-      assertions if DEBUG on (contributed by Lorenz Meier).
-    * Config.mk:  Defined DELIM to be either / or \, depending upon
-      CONFIG_WINDOWS_NATIVE.  This will allow me to eliminate a lot of
-      conditional logic elsewhere.
-    * nuttx/graphics: One a mouse button is pressed, continue to report all
-      mouse button events to the first window that received the the initial
-      button down event, even if the mouse attempts to drag outside the
-      window. From Petteri Aimonen.
-    * nuttx/graphics/nxmu/nx_block.c:  One more fix to the NX block message
-      logic from Petteri Aimonen.
-    * include/nuttx/wqueue.h: Some basic definitions to support a user-
-      space work queue (someday in the future).
-    * graphics/nxmu:  Add semaphores so buffers messages that send buffers
-      will block until the buffer data has been acted upon.
-    * graphics/nxmw:  Extended the blocked messages to cover mouse movement
-      and redraw events.  These will also cause problems if sent to a window
-      while it is closing.
-    * arch/several:  Change UARTs are enabled for i.MX, LM3S, ez80, and M16C to
-      match how they are enabled for other architectures.
-    * configs/ez80f910200kitg:  Convert to use mconf configuration.
-    * sched/pause.c:  Implements the POSIX pause() function.
-    * ez80: Lots of changes to ez80 configurations and build logic as I
-      struggle to get a clean Windows build (still not working).
-    * configs/cloudctrl:   Darcy Gong's CloudController board.  This is a
-      small network relay development board. Based on the Shenzhou IV development
-      board design.  It is based on the STM32F107VC MCU.
-    * arch/arm/src/stm32_serial.c and stm32_lowputc.c:  Added optional RS-485
-      direction bit control. From Freddie Chopin.
-    * Lots of build files:  ARMv7-M and MIPS32 Make.defs now include a common
-      Toolchain.defs file that can be used to manage toolchains in a more
-      configurable way.  Contributed by Mike Smith
-    * configs/stm32f4discovery/winbuild and configs/cloudctrl:  Adapted to use
-      Mike's Toolchain.defs.
-    * tools/configure.sh:  Adapted to handle paths and setenv.bat files correctly
-      for native Windows builds.
-    * More of build files:  AVR and AVR32 Make.defs now include a common
-      Toolchain.defs file that can be used to manage toolchains in a more
-      configurable way.  Contributed by Mike Smith
-    * tools/incdir.sh and incdir.bat: Add -s option to generate system header
-      file paths.
-    * nuttx/arch/arm/src/arm/Toolchain.defs: Add support for more ARM toolchains
-      (from Mike Smith).
-    * arch/arm/src/stm32/stm32f40xxx_rcc.c:  Enabled FLASH prefetch (from Petteri
-      Aimonen).
-    * graphics/nxtk/nxtk_filltrapwindow.c:  Correct an offset problem (from
-      Peterri Aimonen).
-    * graphics/nxglib/nxglib_splitline.c:  Fix error in drawing of near horizontal
-      lines (from Peterri Aimonen).
-    * sched/task_exithook.c:  Missing right bracket with certain conditional
-      compilation (thanks James Goppert).
-    * arch/arm/srch/stm32/stm32_otgfshost.c:  Replace timeout handling; use
-      system tick instead of frame counter.  The frame counter gets reset to
-      zero at 0x3fff making it error prone.
-    * arch/arm/src/stm32/stm32f20xx_rcc.c and stm32f40xx_rcc.c: Added option
-      CONFIG_STM32_FLASH_PREFETCH.  FLASH prefetch will now only be enabled
-      if this option is selected.
-    * confgs/ez80f910200zco/ostest:  Now uses Kconfig/mconf configuration
-      tool. Updated to build in native Windows environment.  Other ez80f910200zco
-      build scripts also updated.
-    * configs/z8f64200100kit/ostest: Update to same level as ez80 configurations.
-    * nuttx/configs/z8f64200100kit/scripts/setenv.bat: Add support for native
-      Windows build.
-    * nuttx/arch/arm/src/lpc17xx/lpc17_i2c.c: Resources not being released when
-      I2C is uninitialized.
-    * cloudctrl/src/up_chipid.c and shenzhou/src/up_chipid.c:  Add functions to
-      get chip ID.  Contributed by Darcy Gong.  These should not be board-dependent,
-      but should be in arch/arm/src/stm32 where they can be used from any board.
-    * sched/work_thread.c: Fix backward conditional compilation.  This might
-      has caused a memory leak.  From Freddie Chopin.
-    * configs/<many>/Make.defs:  Fix typo -wstrict-prototypes should be
-      -Wstrict-prototypes (From Denis Carilki).
-    * arch/arm/src/calapyso/calypso_keypad.c:  Add Calypso keypad driver.  From
-      Denis Carilki.
-    * z8encore000zco/ostest and z8f64200100kit/ostest:  Converted to use Kconfig/
-      mconf configuration tool.
-    * arch/arm/src/armv7-m/up_exception.S: missing curly braces for push/pop
-      From Freddie Chopin.
-    * z8encore000zco/ostest and z8f64200100kit/ostest:  Can now be modified to
-      support the Windows native builds (see corresponding README.txt files).
-    * configs/z16f2800100zcog - All configurations updated to use the ZDS-II
-      5.0.1 toolchain.
-    * configs/z16f2800100zcog - All configurations updated to use Kconfig/mconf
-      configuration tools.
-    * configs/z16f2800100zcog/ostest - Now supports a native Windows build
-      (other ZNEO configs may also support the native build, but this has not
-      been verfiied).
-    * include/nuttx/input/keypad.h, arch/arm/src/calypso/calypso_keypad.c, and
-      configs/compal_e99/nsh_highram: First cut at a standard keypad interface
-      definition.  Contributed by Denis Carikli.
-    * libc/stdlib/lib_rand.c:  Always add one to result congruential generators
-      to avoid the value zero.  Suggested by Freddie Chopin.
-    * tools/b16.c:  Fixed precision math conversion utility.
-    * graphics/nxglib/nxglib_splitline.c:  Fix the "fat, flat line bug"
-    * arch/z80/src/*/Toolchain.defs:  Add dummy Toolchain.defs files for the
-      z80 family.
-    * configs/z80sim/ostest:  Converted to build with the Kconfig/mconf tool.
-      Current configuration failed to build for me (Ubuntu 12.10, SDCC 3.2.0
-      pre-built for Linux) due to a glibc memory corruptionerror in SDCC.
-    * configs/z80sim/ostest: Default is now the Windows native build.  See
-      configs/z80sim/README.txt for instructions to convert back to a Linux or
-      or Cygwin build.
-    * arch/z80/src/Makefile.sdccw:  Renamed makefiles with extensions zdiil,
-      zdiiw, sdccl, and sdccw for the ZDS-II vs SDCC compilers and for the
-      POSIX vs Windows native builds.
-    * nuttx/drivers/mtd/ftl.c:  Fix for the flash translation layer. Short
-      unaligned writes were buggy.  From Petteri Aimonen.
-    * nuttx/libc/math/lib_round*.c:  Add rounding functions to the math
-      library.  Contributed by Petteri Aimonen.
-    * include/cxx/cstdlib:  Add stroul().  From Petteri Aimonen.
-    * arch/*/include/limits.h:  Change signed minimum values from, for example,
-      (-128) to (-127 - 1) to avoid overflows under certain conditions.  From
-      Peterri Aimonen.
-    * graphics/nxtk/nxtk_subwindowmove.c: Previously it was very difficult to
-      do e.g. "scroll by dx, dy". When given the full window area, nxtk_subwindowmove
-      would clip the offset always to 0,0. It makes more sense for it to clip the
-      source area and not modify the offset.  From Petteri Aimonen.
-    * graphics/nxtk/nxtk_getwindow.c: Clipping would change the offset of returned
-      data, and caller has no way to know what the new offset would be. This messes
-      up font drawing when the text is partially out of window, e.g. when scrolling.
-      Also from Petteri Aimonen.
-    * include/stdbool.h: Can now be disabled for C++ files if CONFIG_C99_BOOL8 is
-      defined.  CONFIG_C99_BOOL8 indicates (1) that the sizeof(_Bool) is one in both
-      C and C++, and (2) the the C compiler is C99 and supports the _Bool intrinsic
-      type. Requested by Freddie Chopin.
-    * include/stdlib/lib_rand.c:  Various additional changes so that the integer
-      value zero can be returned.  Requested by Freddie Chopin.
-    * arch/z80/src/Makefile.sdcc*, z80/up_mem.h:  Redesign Z80 build so that it
-      no longer depends on Bash scripts.
-    * configs/z80sim/nsh and pashello:  Converted to (1) use the kconfig-frontends
-      configuration tool, and (2) to build natively under Windows.  The NSH
-      configuration is verified; the pashello configuration needs a more TLC.
-    * tools/copydir.sh:  Rename tools/winlink.sh to tools/copydir.sh
-    * tools/link.bat, unlink.bat, and copydir.bat:  Add Windows counterparts
-      to the link.sh, unlink.sh, and copydir.sh Bash scripts.
-    * configs/z80sim/pashello:  Now builds correctly.
-    * configs/xtrs/ostest, nsh, and pashello:  Converted to (1) use the kconfig-
-      frontends configuration tool, and (2) to build natively under Windows.
-    * drivers/serial/Kconfig and sched/Kconfig:  Two names for same configuration:
-      CONFIG_LOWLEVEL_CONSOLE is bogus and CONFIG_DEV_LOWCONSOLE is in the wrong
-      Kconfig file.  Moved to drivers/serial/Kconfig replacing CONFIG_LOWLEVEL_CONSOLE.
-    * arch/z80/include/z180:  Add header files for z180 chips.  Initial versions
-      are just clones of z80 header files.
-    * arch/z80/src/z180:  Add source files for z180 chips.  Initial versions
-      are just clones of z80 source files.
-    * include/nuttx/arch.h:  Add address environment control interfaces (for use
-      with CPUs the provide MCUs and support process-like address environments).
-    * arch/z80/src/z180/z180_mmu.*:  Add MMU support for z180 tasks.
-    * configs/p112:  Add very basic board support and an examples/ostest
-      configuration for the venerable P112 board.
-    * sched/os_bringup.c: If CONFIG_PATH_INITIAL is defined, then the initial
-      environment of the task started by os_bringup() will have the PATH
-      environment variable defined to be that string.
-    * binfmt/binfmt_exepath.c:  If CONFIG_BINFMT_EXEPATH is defined, then this
-      file will be built.  It contains logic to search for regular files at
-      the absolutes paths found in the current PATH environment variable
-      setting.  This is untested and not yet hooked into the binfmt exec()
-      logic on initial check-in
-    * binfmt/binfmt_loadmodule.c: load_module() will now traverse the PATH
-      variable to locate files from their relative path.
-    * include/nuttx/arch.h and arch/z80/src/z180/z180_mmu.c:  Restructure the
-      address environment interfaces so that they will better integrate with
-      binfmt/.
-    * binfmt/libelf/*, binfmt/libnxflat/* and other files:  Integrate the
-      address environment interfaces.  If CONFIG_ADDRENV=y, then binfmt/
-      will now create an address environment for new tasks (instead of
-      just malloc'ing the task memory).
-    * configs/stm32f4discovery/elf:  Enable support/test of the PATH
-      to find executables using a relative path.
-
-apps-6.24 2012-12-20 Gregory Nutt <gnutt@nuttx.org>
-
-    * apps/examples/ostest/roundrobin.c:  Replace large tables with
-      algorithmic prime number generation.  This allows the roundrobin
-      test to run on platforms with minimal SRAM (Freddie Chopin).
-    * apps/nshlib/nsh_dbgcmds.c:  Add hexdump command to dump the contents
-      of a file (or character device) to the console  Contributed by Petteri
+nuttx-6.25 2013-02-01 Gregory Nutt <gnutt@nuttx.org>
+
+    * graphics/: Adds 5x8 monospace font. This tiny font is useful for graph
+      labels and for small bitmapped display.  Contributed by Petteri
       Aimonen.
-    * apps/examples/modbus:  Fixes from Freddie Chopin
-    * apps/examples/modbus/Kconfig: Kconfig logic for FreeModBus contributed
-      by Freddie Chopin.
-    * Makefile, */Makefile:  Various fixes for Windows native build.  Now uses
-      make foreach loops instead of shell loops.
-    * apps/examples/elf/test/*/Makefile: OSX doesn't support install -D, use
-      mkdir -p then install without the -D.  From Mike Smith.
-    * apps/examples/relays/Makefile: Reduced stack requirement (Darcy Gong).
-    * apps/nshlib and apps/netutils/dhcpc:  Extend the NSH ifconfig command plus
-      various DHCPC improvements(Darcy Gong).
-    * apps/nshlib/nsh_apps.c: Fix compilation errors when CONFIG_NSH_DISABLEBG=y.
-      From Freddie Chopin.
-    * Rename CONFIG_PCODE and CONFIG_FICL as CONFIG_INTERPRETERS_PCODE and
-      CONFIG_INTERPRETERS_FICL for consistency with other configuration naming.
-    * apps/examples/keypadtest:  A keypad test example contributed by Denis
-      Carikli.
-    * apps/examples/elf and nxflat:  If CONFIG_BINFMT_EXEPATH is defined, these
-      tests will now use a relative path to the program and expect the binfmt/
-      logic to find the absolute path to the program using the PATH variable.
-
-NxWidgets-1.4 2012-12-20 Gregory Nutt <gnutt@nuttx.org>
-
-    * libnxwidgets/Makefile, NxWidgets/nxwm/Makefile, and
-      NxWidgets/UnitTests/nxwm/Makefile:  Makefile improvements from
-      submitted by Petteri Aimonen.  Other Makefiles in the UnitTests
-      directory probably also need these changes.
-    * libnxwidgets/src/ccallback.cxx: Fix misplaced #endif.  Provided
-      by Petteri Aimonen.
-    * libnxwidgets/src/cnxserver.cxx:  Reduce delay to allow NX server
-      to start.  One second was un-necessarily long.  Reduced to 50 MS.
-      Reduction suggested by Petteri Aimonen.
-    * tools/bitmap_converter.py:  This script converts from any image type
-      supported by Python imaging library to the RLE-encoded format used by
-      NxWidgets.
-    * NxWidgets/nxwm/src/capplicationwindow.cxx: If the "desktop" is empty,
-      users have no need to minimize any windows. If the buttons are small,
-      it's easy to hit minimize button accidentally when trying to close an
-      application.  Contributed by Petteri Aimonen.
-    * NxWidgets/nxwm/src/ctaskbar.cxx:  Add an option to eliminate the
-      background image.  Contributed by Petteri Aimonen.
-    * NxWidgets/nxwm/src/chexcalculator.cxx and NxWidgets/nxwm/src/cstartwindow.cxx:
-      The config settings CONFIG_NXWM_STARTWINDOW_ICON and CONFIG_NXWM_HEXCALCULATOR_ICON
-      allow changing the icons used for these applications. However, to declare symbols
-      for these icons user would need to modify NxWidgets header files.
-      This commit adds a simple forward declaration to the relevant files, based on the
-      configured icon. If the icon does not exist, linker will give an error about it.
-      Contributed by Petteri Aimonen.
-    * NxWidgets::CTaskBar: Highlight the current window in the task bar.
-      Contributed by Petteri Aimonen.
-    * NxWidgets/libnxwidgets/src/glyph_cycle.cxx:  Width of glyph_cycle was wrong;
-      Destructor needs to by public.  From Petteri Aimonen.
-    * NxWidgets::CNumericEdit.  This is basically a label with plus and minus buttons.
-      Contributed by Petteri, Aimonen.
-    * NxWM::CStartWindow:  Fix mq_receive error handling with signal is recieved.
+    * configs/stm3220g-eval/nxwm:  Converted to use the kconfig-frontends
+      configuration tool.
+    * configs/sim/nxwm:  Converted to use the kconfig-frontends configuration
+      tool.
+    * include/pthread.h:  In sys/prctl.h because it is needed by
+      pthread_[set|get]name_np()
+    * tools/kconfig.bat:  Kludge to run kconfig-frontends from a DOS shell.
+    * sched/sig_timedwait.c:  Should always move the time up to the next
+      largest number of system ticks.  The logic was rounding.  Noted by
+      Petteri Aimonen.
+    * arch/arm/src/up_head.S:  Fix backward conditional compilation.  NOTE
+      there is a issue of ARM9 systems with low vectors and large memories
+      that will have to be addressed in the future.
+    * libc/misc/lib_kbdencode.c and lib_kbddecode.c:  Add logic to marshal
+      and serialized "out-of-band" keyboard commands intermixed with normal
+      ASCII data (not yet hooked into anything).
+    * drivers/usbhost/usbhost_hidkbd.c:  If CONFIG_HIDKBD_ENCODED is
+      defined, this driver will now use libc/misc/lib_kbdencode.c to
+      encode special function keys.
+    * configs/olimex-lpc1766stk/hidkbd:  This configuration has been
+      converted to use the kconfig-frontends configuration tool.
+    * drivers/lcd/ug-2864hsweg01.c and include/nuttx/lcd/ug-2864hsweg01.h:
+      Driver for UG-2864HSWEG01 OLED contributed by Darcy Gong.
+    * configs/stm32f4discovery/src/up_ug2864hsweg01.c: Support for the
+      UG-2864HSWEG01 OLED for the STM32F4Discovery board.
+    * drivers/usbhost/usbhost_hidkbd.c:  Correct a logic error in how
+      tasks waiting for read data are awakened.
+    * libc/misc/lib_kbdencode.c and lib_kbddecode.c:  Now handles keypress
+      events too.  However, the USB HID keyboard driver has not yet been
+      updated to detect key release events.  That is kind of tricky in
+      the USB HID keyboard report data.
+    * configs/mcu123-214x/nsh:  Converted to use the kconfig-frontends
+      configuration tool.
+    * configs/zp214xpa:  Add basic support for the The0.net ZP213x/4xPA
+      board (with the LPC2148 and the UG_2864AMBAG01).
+    * configs/sim/nxlines:  Add an nxlines configuration for the
+      simulator.
+    * configs/zp214xpa/nxlines:  Add an nxlines configuration for the
+      ZP213x/4xPA (with the LPC2148 and the UG_2864AMBAG01).  Working
+      as of 2012-12-30.
+    * configs/olimex-lpc1766stk/wlan:  Remove non-functional
+      configuration.
+    * configs/stm32f4discovery/src and nuttx/drivers/lcd/ug-2864hsweg01.c:
+      Updates and correctinos for the UG-2864HSWEG01 from Darcy Gong.
+    * configs/lm326965-ek:  All configurations converted to use the
+      kconfig-frontends configuration tool.
+    * configs/Kconfig: NSH_MMCSDSPIPORTNO should depend on MMCSD_SPI,
+      not just SPI (from Jose Pablo Carballo).
+    * arch/arm/src/arm/Kconfig and armv7m/Kconfig:  Add an option for
+      buildroot toolchains:  They may be EABI or OABI.
+    * include/nuttx/progmem and arch/arm/src/stm32/stm32_flash.c:
+      Fix a counting bug plus change interface to use either relative
+      or absolute FLASH addressing (from Freddie Chopin).
+    * libc/misc/Make.defs:  Fix error in conditional for KBD CODEC.
+    * libc/Kconfig and configs/*/defconfig (several):  The default
+      setting should be CONFIG_LIB_KBDCODEC=n
+    * tools/configure.c:  configure.c can be used to build a work-alike
+      program as a replacement for configure.sh.  This work-alike
+      program would be used in environments that do not support Bash
+      scripting (such as the Windows native environment).
+    * tools/configure.bat: configure.bat is a small Windows batch
+      file that can be used as a replacement for configure.sh in a
+      Windows native environment.  configure.bat is actually just a
+      thin layer that executes configure.exe if it is available. If
+      configure.exe is not available, then configure.bat will attempt
+      to build it first.
+    * arch/arm/src/lpc17xx/lpc17_syscon.h:  Correct some typos in bit
+      definitions (from Rommel Marcelo).
+    * libc/string/lib_strndup.c: strndup() should use strnlen(), not
+      strlen(), to determine the size of the string.
+    * sched/os_bringup.c:  Remove support for CONFIG_BUILTIN_APP_START.
+      This is not really a useful feature and creates a violation of the
+      OS layered architecture.
+    * include/unistd.h, arch/arch/src/*:  Implement a simple vfork().
+      On initial checkin, this API is available only for ARM platforms.
+    * binfmt/binfmt_exec.c: exec() now sets the priority of the new task
+      to the same priority as the current task (instead of the arbirtrary
+      value of 50).
+    * libc/unisted/lib_execv.c and lib_execl.c:  New, somewhat flawed,
+      implementations of execv() and execl().
+    * tools/cfgdefine.c:  Strips quotes from CONFIG_EXECFUNCS_SYMTAB
+      value.
+    * arch/arm/include/lm3s/chip.h:  Move chip definitions into
+      public include area for compatibility with other architectures.
+    * arch/arm/src/lm3s/chip:  Move register definition header files
+      into a new chip/ sub-directory.
+    * arch/arm/src/lm3s/lm3s_internal.h:  Broke up into several
+      smaller header files.
+    * arch/arm/src/lm:  Rename the arch/arm/src/lm3s directory to
+      arch/arm/src/lm so that is can support other members of the
+      Stellaris family.
+    * libc/spawn:  Add file action interfaces needed by posix_spawn().
+    * sched/clock_time2ticks.c:  Another case where time was being
+      rounded down instead of up (from Mike Smith).
+    * libc/spawn:  Implementation of posix_spawn() is complete but
+      untested and undocumented.
+    * drivers/usbdev/pl2303.c:  Fix typols in the PL2303 driver
+      (from Max Holtzberg).
+    * configs/stm32f4discovery/posix_spawn:  Added a configuration
+      that can be used for testing posix_spawn().
+    * arch/arm/src/stm32: Bring F1 support for general DMA and serial
+      DMA in paricular up to parity with F2/F4 (from Mike Smith).
+    * libc/stdio/lib_libfread.c:  Correct some error handling when
+      lib_fread() was passed a bad stream.  Needed to move the
+      releasing of a semaphore inside of some conditional logic
+      (cosmetic).
+    * include/nuttx/sched.h, sched/task_setup.c, and sched/task_exithook.c:
+      Add support for remembering the parent task and sending
+      SIGCHLD to the parent when the task exists.
+    * sched/task_exithook.c:  Fixed a *critical* bug.  Here is
+      the scenario: (1) sched_lock() is called increments the lockcount
+      on the current TCB (i.e., the one at the head of the ready to run
+      list), (2) sched_mergepending is called which may change the task
+      at the head of the ready-to-run list, then (3) sched_unlock() is called
+      which decrements the lockcount on the wrong TCB.  The failure case
+      that I saw was that pre-emption got disabled in the IDLE thread,
+      locking up the whole system.
+    * sched/sched_waitpid.c:  Use SIGCHLD instead of a semaphore.  This
+      is a much more spec-compliant implementation.  However, there are
+      some issues with overruning signals because NuttX does not support
+      queueing of signals (POSIX does not require it).  I think it may
+      need to.
+    * sched/sched_waitid.c and sched_wait.c:  Add support for waitid()
+      and wait().  See issues with waitpid() above.
+    * include/nuttx/fs/fs.h and fs/fs_files.c:  Add a dup() method to
+      the struct mountpt_operations.  When dup'ing a file that resides
+      on a mounted volume, let the file system's dup() method do the
+      work.
+    * fs/romfs/fs_romfs.c: Implemented the dup() method for the ROMFS
+      file system.
+    * fs/fat/fs_fat32.c, fs/nxffs/nxffs_initialize, and
+      fs/nfs/nfs_vfsops.c:  Add hooks for dup() method (not yet
+      implemented).
+    * fs/romfs:  Remove the rf_open flag.  It looks good, but actually
+      does nothing.
+    * fs/fat:  Remove the ff_open flag.  Same story as for the ROMFS
+      rf_open flag.
+    * fs/fat/fs_fat32.c, fs/nxffs/nxffs_initialize, and
+      fs/nfs/nfs_vfsops.c:  Completed implementation of the dup() methods.
+      There is still no good test available.
+    * sched/sig_timedwait.c:  sigtimedwait() would return a bad signal
+      number if the signal was already pending when the function was
+      called.
+    * configs/ubw32/scripts:  All common linker scripts moved to this
+      scripts sub-directory
+    * configs/ubw32/ostest:  Configuration configured to use the
+      kconfig-frontends tools.
+    * arch/mips/src/mips32/up_vfork.c, up_vfork.h, and vfork.S:
+      Implement vfork() for MIPS32 (no floating point support)
+    * configs/ubw32/ostest: Enable the vfork() test.
+    * fs/binfs:  Move apps/builtin/binfs.c to fs/binfs/fs_binfs.c
+      CONFIG_APPS_BINDIR rename CONFIG_FS_BINFS
+    * include/nuttx/binfmt/builtin.h:  Some of the content of
+      apps/include/apps.h moved to include/nuttx/binfmt/builtin.h
+    * binfmt/libbuiltin/libbuiltin_utils.c:  Move builtin
+      utility functions from apps/builtin/exec_builtins.c to
+      binfmt/libbuiltin/libbuiltin_utils.c
+    * binfmt/builtin.c and binfmt/libbuiltin:  Add a binary "loader"
+      that can be used to execute builtin programs from the BINFS
+      file system.
+    * configs/sim/nsh: Convert to use kconfig-frontends configuration
+      tool.
+    * binfmt/binfmt_schedunload.c:  Add logic based on SIGCHLD to
+      automatically unload and clean-up after running a task that
+      was loaded into memory.
+    * binfmt/libbuiltin: Extensions from Mike Smith
+    * sched/task_reparent.c:  Add internal interface to change the
+      parent task.
+    * sched/task_posixspawn():  Move libc/spawn/lib_ps.c to
+      sched/task_posixspawn() now it requires internal, reparenting
+      interfaces
+    * include/nuttx/spawn():  Move libc/spawn.h to include/nuttx/spawn.h
+    * arch/arm/include/lpc17xx/chip.h, irq178x.h:  Integrate Marcelo
+      Rommel's LPC1788 definitions into the base LPC17xx.
+    * configs/olimex-lpc1766stk/nsh:  Convert configuration to use
+      the kconfig-frontends tools.
+    * sched/task_reparent.c:  Simplify reparenting interface.
+    * arch/arm/src/[many]: More LPC1788 definitions from Rommel
+      Marcelo incorporated.
+    * configs/open1788:  Board configuration for the Wave Share
+      Open1788 board.  Still fragmentary (contributed by Rommel
+      Marcelo, adapted to use kconfig-frontends.
+    * net/send():  Add logic to work around delayed ACKs by splitting
+      packets (contributed by Yan T.).
+    * net/recvfrom():  Fix a bug.  When the host closes a connection
+      (gracefully).  recv[from]() returned success and the closure
+      was never detected.  Hmmm.. I don't know why the network monitor
+      did not catch this event.  This is an important bug fix.
+    * net/recvfrom():  Fix a introduced with the last bugfix.  If
+      the peer does an orderly closure of the socket, report 0 not
+      -ENOTCONN
+    * configs/lm3s6965-ek/README.txt and tools/:  Add an OpenOCD
+      configuration for the LM3S (from Jose Pablo Carballo).
+    * nuttx/lcd/hd4478ou.h and configs/pcblogic-pic32mx/src/up_lcd1602:
+      Start of support of LCD1602 alphanumeric LCD.  I need a few
+      more parts before I can finish integrating this one.
+    * arch/arm/src/*/chip.h and arch/arm/include/*/chip.h:  Move all
+      priority ranges from the src to the include chip.h header file.
+    * arch/arm/include/armv7-m/irq.h:  Add inline functions to enable
+      and disable interrupts via the BASEPRI register.
+    * arch/arm/Kconfig:  Add new option CONFIG_ARM7VM_USEBASEI
+    * arch/arm/src/*/*_irq.c:  Set the priority of the SVCALL exception
+      to the highest possible value.
+    * arch/armv7-m/up_hardfault.c:  Fail if a hardfault occurs
+      while CONFIG_ARM7VM_USEBASEPRI=y.
+    * arch/arm/src/stm32/stm32_serial.c:  Add support for USART
+      single wire mode (Contributed by the PX4 team).
+    * sched/: Implement support for retaining child task status after
+      the child task exists.  This is behavior required by POSIX.
+      But in NuttX is only enabled with CONFIG_SCHED_HAVE_PARENT and
+      CONFIG_SCHED_CHILD_STATUS
+    * Add support for keyboard encode to the keypad test (from
+      Denis Carikli).
+    * configs/olimex-lpc1766stk/nettest:  Configuration converted to
+      use the kconfig-frontends tools.
+    * net/net_poll.c:  Split net_poll() to create psock_poll() too.
+    * net/net_poll.c:  Fix poll/select issure reported by Qiang:
+      poll_interrupt() must call net_lostconnection() when a
+      loss of connection is reported.  Otherwise, the system will
+      not know that the connection has been lost.
+    * sched/group_create.c, group_join.c, and group_leave.c:  Add
+      support for task groups.
+    * sched/group_signal.c and task_exithook.c:  Send signal to all
+      members for the parent task group.
+    * include/nuttx/sched.h and sched/env_*.c:  Move environment
+      variables into task group structure.
+    * sched/: Lots of file changed.  Don't keep the parent task's
+      task ID in the child task's TCB.  Instead, keep the parent
+      task group IN the child task's task group.
+    * fs/, sched/, include/nuttx/sched.h, and include/nutts/fs/fs.h:
+      Move file data from the TCB to the task group structure.
+    * libc/stdio/, sched/, include/nuttx/lib.h, and include/nutts/fs/fs.h:
+      Move stream data from the TCB to the task group structure.
+    * net/, sched/, and include/nuttx/net/net.h:  Move socket data
+      from the TCB to the task group structure.
+    * sched/task_starthook.c, sched/task_start.c, and include/nuttx/sched.h:
+      Add a task start hook that will be called before the task main
+      is started. This can be used to schedule C++ constructors to run
+      automatically in the context of the new task.
+    * binfmt/binfmt_execmodule: Execute constructors as a start hook.
+    * sched/os_start.c: Fix ordering of group initialization.
+    * configs/stm32f4discovery/usbnsh:  Add an NSH STM32F4Discovery
+      configuration that uses USB CDC/ACM for the NSH console.
+    * configs/stm32f4discovery/nsh: Converted to use the kconfig-frontends
+      tools.
+    * configs/*/src/up_userleds.c: Fix a error that was cloned into
+      all STM32 user LED code.  The wrong definitions were being used
+      to set LEDs on or off.
+    * arch/*/common/up_internal.h and arch/*/common/up_initialize.c:
+      Serial was driver was not being built if there is no console
+      device.  Obviously, the serial driver may be needed even in
+      this case.
+    * arch/arm/src/stm32/stm32_serial.c: If there is a serial console,
+      it would be ttyS0 and the others would be ttyS1-5.  If there
+      is not serial console, was labeling them ttyS1-6; now labels them
+      ttyS0-5.
+    * fs/fs_syslog.c: Can't handle SYSLOG output to character device from
+      the IDLE task (because it can't block). syslog_putc now returns EOF
+      on failure and sets errno.  Fixed some errors in error handling.
+    * libc/stdio/lib_syslogstream.c:  Checking of return value from
+      syslog_putc was bogus.  Switching to EOF for all errors solves
+      this.
+    * arch/arm/src/lm/chip/lm4f_memorymap.h: More LM4F changes from
+      Jose Pablo Carballo.
+    * drivers/serial/serial.c, include/nuttx/serial/serial.h,
+      drivers/usbdev/cdcacm.c, and drivers/pl2303.c: Add support for
+      removable serial devices (like USB serial).  This support is enabled
+      by CONFIG_SERIAL_REMOVABLE.
+    * arch/*/src/*/Toolchain.defs: Change assignment so that we can
+      override CROSSDEV with a make command line argument.
+    * include/assert.h:  Mark assertion functions as non-returning.
+    * arch/*/src/*/up_assert.h:  Mark _up_assert() as non-returning.
+    * drivers/mtd/at25.c: When the AT25 device was not available the
+      initialization did not fail like it should. From Petteri Aimonen.
+    * fs/fat/fs_configfat.c:  Fix some errors in FAT formatting logic
+      for large devices and for FAT32. From Petteri Aimonen.
+    * fs/fat/fs_fat32util.c:  Fix an initialization error found by
+      Petteri Aimonen.  freecount and next freecount initialization were
+      reversed.
+    * drivers/mmcsd/mmcsd_spi.c: Some SD cards will appear busy until
+      switched to SPI mode for first time.  Having a pull-up resistor on
+      MISO may avoid this problem, but this patch makes it work also
+      without pull-up.  From Petteri Aimonen.
+    * fs/fat/fs_fat32.c: Fix a compilation error when FAT_DMAMEMORY=y. 
       From Petteri Aimonen.
-    * NxWidgets::CNxTimer:  Replace the original (apparently non-functional) signal-
-      based solution with a work queue-based solution.  This raises some isses about
-      using the internal work queues from user space.  I have decided to implemented
-      user-space work queues (someday) in order to accomplish that functionaliy.
-      Submitted by Petteri Aimonen.
-    * NxWidgets:CText and NxWidgets:CNumericEdite:  Fix some memory freeing bugs
+    * arch/arm/src/stm32/chip/stm32_spi.h: STM32F4 max SPI clock freq is
+      37.5 MHz.  Patch from Petteri Aimonen.
+    * arch/arm/src/stm32/stm32_spi.c: Fixes for SPI DMA work on the
+      STM32F4. Includes untested additions for the F1 implementation as
+      well.  From Petteri Aimonen.
+
+apps-6.25 2013-02-01 Gregory Nutt <gnutt@nuttx.org>
+
+    * Makefiles: Removed dependency of distclean on clean in most top-level
+      files.  It makes sense for 'leaf' Makefiles to have this dependency,
+      but it does not make sense for upper-level Makefiles.
+    * apps/namedapp/: Renamed to builtins in preparation for another change.
+    * .context:  Removed the .context kludge.  This caused lots of problems
+      when changing configurations because there is no easy way to get the
+      system to rebuild the context.  Now, the context will be rebuilt
+      whenever there is a change in either .config or the Makefile.
+    * apps/builtin/registry:  Updated new built-in registration logic to handle
+      cases where (1) old apps/.config is used, and (2) applications ared
+      removed, not just added.
+    * apps/examples/nettest/Makefile:  Fix an error that crept in during
+      some of the recent, massive build system changes.
+    * apps/builtin/Makefile:  Need to have auto-generated header files
+      in place early in the dependency generation phase to avoid warnings.
+      It is not important if they are only stubbed out header files at
+      this build phase.
+    * apps/examples/hidbkd: Now supports decoding of encoded special keys
+      if CONFIG_EXAMPLES_HIDKBD_ENCODED is defined.
+    * apps/examples/hidbkd:  Add support for decoding key release events
+      as well.  However, the USB HID keyboard drier has not yet been
+      updated to detect key release events.  That is kind of tricky in
+      the USB HID keyboard report data.
+    * apps/examples/wlan: Remove non-functional example.
+    * apps/examples/ostest/vfork.c:  Added a test of vfork().
+    * apps/exampes/posix_spawn: Added a test of posix_spawn().
+    * apps/examples/ostest:  Extend signal handler test to catch
+      death-of-child signals (SIGCHLD).
+    * apps/examples/ostest/waitpid.c:  Add a test for waitpid(), waitid(),
+      and wait().
+    * builtin/binfs.c:  Add hooks for dup() method (not implemented).
+    * builtin/exec_builtin.c, nshlib/nsh_parse.c, and nshlib/nsh_builtin.c:
+      NSH now supports re-direction of I/O to files (but still not from).
+    * builtin/binfs.c:  Greatly simplified (it is going to need to be
+      very lightweight).  Now supports open, close, and a new ioctl to recover
+      the builtin filename.  The latter will be needed to support a binfs
+      binfmt.
+    * builtin/binfs.c:  Move apps/builtin/binfs.c to fs/binfs/fs_binfs.c
+      CONFIG_APPS_BINDIR rename CONFIG_FS_BINFS
+    * apps/include/builtin.h:  Some of the content of
+      apps/include/apps.h moved to include/nuttx/binfmt/builtin.h.
+      apps/include/apps.h renamed builtin.h
+    * apps/builtin/exec_builtins.c:  Move builtin
+      utility functions from apps/builtin/exec_builtins.c to
+      binfmt/libbuiltin/libbuiltin_utils.c
+    * apps/nshlib/nsh_mountcmds.c:  The block driver/source
+      argument is now optional.  Many files systems do not need
+      a source and it is really stupid to have to enter a bogus
+      source parameter.
+    * apps/nshlib/nsh_fileapp.c:  Add the ability to execute a file
+      from a file system using posix_spawn().
+    * apps/builtin/: Extensions from Mike Smith.
+    * apps/examples/ftpd/Makefile: Name ftpd_start is not the name of
+      the entrypoint.  Should be ftpd_main (from Yan T.)
+    * apps/netutils/telnetd/telnetd_driver: Was stuck in a loop if
+      recv[from]() ever returned a value <= 0.
+    * apps/examples/nettest and poll:  Complete Kconfig files.
+    * apps/examples/ostest/waitpid.c:  Need to use WEXITSTATUS()
+      to decode the correct exit status.
+    * apps/system/usbmonitor:  A daemon that can be used to monitor USB
+      trace outpout.
+    * apps/nshlib/nsh_usbdev.c, nsh_consolemain.c, nsh_session.c, nsh_script.c:
+      Add support for a login script.  The init.d/rcS script will be executed
+      once when NSH starts; the .nshrc script will be executed for each session:
+      Once for serial, once for each USB connection, once for each Telnet
+      session.
+    * apps/system/readline: Correct readline() return value.  Was not
+      any returning special values when end-of-file or read errors
+      occur (it would return an empty string which is not very useful).
+
+NxWidgets-1.5 2013-02-01 Gregory Nutt <gnutt@nuttx.org>
+
+    * NxWidgets::CGraphicsPort::move():  Fix typo bug in bounding rectangle
+      calculation (from Petteri Aimonen).
+    * NxWM::CScrollingPanel::scrollChildren(): Avoid unnecessary redraws in
+      CScrollingPanel (contributed by Petteri Aimonen).
+    * NxWM::CCycleButton:  Remove the separator from CCycleButton. It draws in
+      wrong place, and doesnt look very good in the correct place either.
       (from Petteri Aimonen).
-    * NxWidgets::CScrollingPanel:  Usability improvements.  It is borderless for now,
-      because there was no easy way to redraw only the required part of the border.
-      Contributed by Petteri Aimonen.
-    * NxWidgets::CNxWidgets and NxWM::CStartWindow: Small changes to make sub-
-      classing easier (from Petteri Aimonen).
+    * NxWidgets::CGraphicsPort: Many times we only want a constant background.
+      In that case the old code fills the background, reads it back, renders
+      the text and then writes it back. When used with LCD's (instead of
+      framebuffers) this causes unnecessary delay and screen flicker.
+      This commit adds a variant of drawText that takes background color,
+      so that the background and text can both be rendered at one go.
+      The old functions still function as before (Petteri Aimonen).
+    * NxWidgets::CLabel: The label was drawn as a single rectangular region,
+      then a text was added to the on top of this.  The result is that the
+      text would flicker when the CLabel was updated. With this change, the
+      two step update is replaced with a five step update:  The background
+      is updated as four rectangulear regions (leaving the previous text in
+      place), then the new text is updated.  This eliminates the flicker
+      (Petteri Aimonen).
+    * Kconfig: Many NxWidgets/NxWM settings do not have meaningful, generic
+      default values.  Colors, for example, depend on pixel depth.  Some
+      geometry settings depending on other geometry settings.  Font IDs are
+      not know-able by the configuration system.  etc.  In these cases, it
+      is best if the settings are just not undefined so that the system can
+      calculate a reasonable default.  however, if no default is provided
+      in the .config file, mconf will complain and generate errors.  So work
+      around this, I added several "enabling" settings to override the
+      default setting.  This is awkward and I preferred the configuration as
+      it was before, but this avoids the mconf errors and warnings.
+    * UnitTests:  Changed occurrences of lib_rawprintf() and lib_lowprintf()
+      to match recent changes to NuttX (will be in NuttX-6.25)
+    * CGraphicsPort::_drawText:  Renamed from CGraphicsPort::drawText in order
+      to eliminate some naming collisions when overloaded in some configurations
+      (i.e., when both bool and nx_pixel_t are uint8_t).  From Petteri Aimonen.
+    * CNxWidgets::drawContents: Change base drawContents from a do-nothing
+      function to a function that fills the widget with the background color.
+      This is useful when using CNxWidgets as a "panel" , i.e. a container
+      for other widgets. Subclasses will override drawContents and decide
+      themselves how to draw the background.
+    * CNxWidgets::CTabPanel:  A new widget contributed by Petteri Aimonen.
+      This widget provides a tab panel, which has a button bar at the top
+      and panels below it. Pressing a button will select the corresponding
+      panel.
 
 uClibc++-1.0 2011-11-05 <gnutt@nuttx.org>
 
diff --git a/nuttx/ReleaseNotes b/nuttx/ReleaseNotes
index 02cb8158d..9d146e90a 100644
--- a/nuttx/ReleaseNotes
+++ b/nuttx/ReleaseNotes
@@ -3440,3 +3440,323 @@ Bugfixes (see the change log for details).  Some of these are very important
     * Applications: Modbus fixes from Freddie Chopin.
 
 As well as other, less critical bugs (see the ChangeLog for details)
+
+NuttX-6.25
+^^^^^^^^^^
+
+The 92nd release of NuttX, Version 6.25, was made on February 1, 2013,
+and is available for download from the SourceForge website.  Note
+that release consists of two tarballs:  nuttx-6.25.tar.gz and
+apps-6.25.tar.gz.  Both may be needed (see the top-level nuttx/README.txt
+file for build information).
+
+This release corresponds with SVN release number: r5594
+
+Note that all SVN information has been stripped from the tarballs.  If you
+need the SVN configuration information, you should check out directly from
+SVN.  Revision r5594 should equivalent to release 6.25 of NuttX:
+
+    svn checkout -r5594 svn://svn.code.sf.net/p/nuttx/code/trunk nuttx-code
+
+Or (HTTP):
+
+    svn checkout -r5594 http://svn.code.sf.net/p/nuttx/code/trunk nuttx-code
+
+Additional new features and extended functionality:
+
+    * OS Initialization
+
+      - Removed support for CONFIG_BUILTIN_APP_START.  This is not really a
+        useful feature and creates a violation of the OS layered
+        architecture.
+
+    * Task Creation:
+
+      - Implement a simple vfork().  In NuttX-6.25, this interface is
+        available only for ARM7/9, ARMv7-M (Cortext-M3/4), and MIPS32
+        (PIC32MX) platforms.
+      - exec() now sets the priority of the new task to the same priority as
+        the parent task (instead of the arbirtrary value of 50).
+      - New, partially complient implementations of execv() and execl().
+        These are only partially compliant because they do not overlay any
+        existing "process space" but rather create the new task and exit().
+      - Add a complete implementation of posix_spawn().  This standard
+        interface is a better match for an MMU-less architecture than are
+        vfork() plus execv() or execl().
+      - Add a task start hook that will be called before the task main
+        is started.  This can be used, for example, to schedule C++
+        static constructors to run automatically in the context of the
+        new task.
+
+    * Task Parentage
+
+      - Repartitioned tasking data structures.  All shared resources are now
+        collected together in a "task group".  A task group includes the
+        original task plus all of the pthreads created by the task.
+      - Added support for remember the parent "task group" when a new task is
+        started.
+      - Added optional support to record the membership of each thread in
+        the "task group".
+      - Implement support for retaining child task status in the "task group"
+        after the child task exists.  This is behavior required by POSIX.
+        But in NuttX is only enabled with CONFIG_SCHED_HAVE_PARENT and
+        CONFIG_SCHED_CHILD_STATUS
+      - Add internal logic to "reparent" a task.  This is useful,
+        for example, where the child task is created through a trampoline
+        task that redirects I/O.  Reparenting allows the caller of posix_spawn()
+        to be reparented for the eventual child thread.
+      - Added support for SIGCHLD.  Sent to all members of the parent task
+        group when the file member of the child task group exits.
+      - If SIGCHLD and retention of child task exist status are enabled, then
+        a more spec-compliant version of waitpid() is enabled.
+      - New interfaces waitid() and wait() are also enabled when SIGCHLD
+        is enabled.
+
+    * File System
+ 
+      - dup() and dup2() can new be used with opened files in a mounted file
+        system.  This supports re-direction of output in NSH to files.
+      - The binfs file system was moved from apps/builtin to fs/binfs.  The
+        binfs file system was extended to support execution of "builtin
+        applications" using exec(), execv(), execl(), or posix_spawn().
+      - Added logic based on SIGCHLD to automatically unload and clean-up
+        after running a task that was loaded into memory.
+
+    * Binary Formats
+
+      - Much of the logic for "builtin applications" was moved from
+        apps/builtin to nuttx/binfmt/libbuiltin.  Includes some extensions
+        contributed by Mike Smith.
+      - A binary loader was added for builtin applications to support
+        execution of "builtin applications" using exec(), execv(),
+        execl(), or posix_spawn().
+
+    * Drivers:
+ 
+      - Added logic to marshal and serialized "out-of-band" keyboard
+        commands (such as cursor controls and key release events) intermixed
+        with normal ASCII keypress data.  The encoding is partially integrated
+        in the HID keyboard driver and the decoding full integrated into the
+        apps/examples hidkbd and keypadtest (the latter contributed by Denis
+        Carlikli).
+      - Driver for the UG-2864HSWEG01 OLED contributed by Darcy Gong.
+      - Add support for removable serial devices (like USB serial).  This
+        support is enabled by CONFIG_SERIAL_REMOVABLE.
+
+    * ARMv7-M:
+
+      - Added an option to use the BASEPRI register to disable interrupts
+        (instead of the PRIMASK).  This eliminates some innocuous hardfaults
+        that interfere with some debug tools.  You need to switch to the
+        BASEPRI method only if you have such tool interference.
+
+    * STM32 Drivers
+
+      - Bring STM32 F1 DMA capabilities up to par with the STM32 F2/F4
+        (contributed by Mike Smith).
+      - Add support for USART single wire mode (Contributed by the PX4
+        team).
+      - Updates to support for SPI DMA on the STM32 F1/F2/F4.  From
+        Petteri Aimonen.
+
+    * STM32 Boards:
+
+      - New configuration to support the UG-2864HSWEG01 OLED on the
+        STM32F4Discovery board.
+      - Added a posix_spawn() test configuration for the STM32F4Discovery.
+
+    * LM3S/LM4F
+
+       - Files and directories repartitioned to support both LM3S and LM4F
+         using the STM32 organization as a model.
+       - Partial definitions for the LM4F contributed by Jose Pablo Carballo
+         (this is still a work in progress).
+
+    * LM3S Boards
+ 
+       - Added scripts and documentation to use OpenOCD with the LM3S (from
+         Jose Pablo Carballo).
+
+    * LPC176x/LPC178x
+
+       - Files and directories repartitioned to support both LPC175x/LPC176x
+         and the LPC177x/LPC178x families using the STM32 organization as a
+         model.  The LPC1788 port is a work in progress by Rommel Marcelo.
+
+    * LPC176x/LPC178x Boards:
+
+      - Added a configuration to support the Wave Share Open1788 board.
+        This is still a work in progress by Rommel Marcelo.
+
+    * LPC2148 Boards:
+ 
+      - Add basic support for the The0.net ZP213x/4xPA board (with the LPC2148
+        and the UG_2864AMBAG01 OLED).
+      - Add an nxlines configuration for the ZP213x/4xPA (with the LPC2148
+        and the UG_2864AMBAG01).
+ 
+    * Simulator:
+ 
+      - Add an nxlines configuration for the simulator.
+
+    * Networking:
+
+      - Add logic to work around delayed ACKs by splitting packets
+        (contributed by Yan T.).
+      - Split net_poll() to create the internal interface psock_poll().
+
+    * LCDs:
+
+      - Added support for LCD1602 alphanumeric LCD (HD4468OU controller).
+
+    * Graphics:
+
+      - Added 5x8 monospace font. This tiny font is useful for graph
+        labels and for small bitmapped display.  Contributed by Petteri
+        Aimonen.
+
+    * Build System:
+
+      - Add an options to better manage toolchain prefixes.
+      - Redesigned how the context targer works in the apps/ directory.
+        The old design caused lots of problems when changing configurations
+        because there is no easy way to get the system to rebuild the
+        context.  This change should solve most the problems and eliminate
+        questions like "Why don't I see my builtin application in NSH?"
+
+    * Kconfig Files:
+
+      - There are several new configurations that use the kconfig-frontends
+        tools and several older configurations that have been converted to
+        use these tools.  There is still a long way to go before the conversion
+        is complete:
+
+        configs/sim/nxwm
+        configs/sim/nsh
+        configs/stm3220g-eval/nxwm
+        configs/stm32f4discovery/posix_spawn
+        configs/olimex-lpc1766stk/nsh
+        configs/olimex-lpc1766stk/hidkbd
+        configs/olimex-lpc1766stk/nettest
+        configs/open1788/ostest
+        configs/stm32f4discovery/nsh
+        configs/stm32f4discovery/usbnsh
+        configs/lm326965-ek (all configurations)
+        configs/mcu123-214x/nsh
+        configs/ubw32/ostest
+
+    * Tools:
+
+      - tools/kconfig.bat:  Kludge to run kconfig-frontends from a DOS shell.
+      - tools/configure.c:  configure.c can be used to build a work-alike
+        program as a replacement for configure.sh.  This work-alike
+        program would be used in environments that do not support Bash
+        scripting (such as the Windows native environment).
+      - tools/configure.bat: configure.bat is a small Windows batch
+        file that can be used as a replacement for configure.sh in a
+        Windows native environment.  configure.bat is actually just a
+        thin layer that executes configure.exe if it is available. If
+        configure.exe is not available, then configure.bat will attempt
+        to build it first.
+
+    * Applications:
+
+      - New and modified examples:
+      
+        apps/examples/wlan: Remove non-functional example.
+        apps/examples/ostest: Added a test of vfork(). Extend signal
+          handler test to catch death-of-child signals (SIGCHLD). Add a
+          test for waitpid(), waitid(), and wait().
+        apps/exampes/posix_spawn: Added a test of posix_spawn().
+
+      - NSH:
+
+        NSH now supports re-direction of I/O to files (but still not from).
+        The block driver source argument to the mount command is now
+          optional for file systems that do not require a block driver.
+        NSH can now execute a program from a file system using posix_spawn().
+        Added support for a login script.  The init.d/rcS script will be
+          executed once when NSH starts; the .nshrc script will be executed
+          for each session:  Once for serial, once for each USB connection,
+          once for each Telnet session.
+
+      - Supports a new daemon that can be used to monitor USB trace outpout.
+      - Removed non-functional wlan example.
+
+Bugfixes (see the ChangeLog for details).  Some of these are very important:
+
+    * Tasking:
+
+      - Fixed a *critical* task exit bug.  Here is the failure scenario:
+        (1) sched_lock() is called increments the lockcount on the current
+        TCB (i.e., the one at the head of the ready to run list), (2)
+        sched_mergepending is called which may change the task at the head
+        of the ready-to-run list, then (3) sched_unlock() is called which
+        decrements the lockcount on the wrong TCB.  The failure case that
+        I saw was that pre-emption got disabled in the IDLE thread, locking
+        up the whole system.
+
+    * Signals:
+
+      - sigtimedwait() would return a bad signal number if the signal was
+        already pending when the function was called.
+
+    * Drivers:
+
+      - Some SD cards will appear busy until switched to SPI mode for
+        first time.  Having a pull-up resistor on MISO may avoid this
+        problem, but this fix from Petteri Aimonen makes it work also
+        without pull-up.
+
+    * STM32 Drivers:
+
+      - STM32 FLASH driver counting error (from Freddie Chopin).
+      - STM32 F4 maximum SPI frequency was wrong (corrected by Petteri
+        Aimonen).
+
+    * STM32 Boards
+
+      - Due to cloning of untested code, the logic to control on-board
+        LEDs did not work on any STM32 boards.
+      - Serial devices number /dev/ttyS0-5 is there is a serial console,
+        but /dev/ttyS1-6 if there is no serial console.
+
+    * Binary Formats
+
+      - C++ static constructors execute now using a start taskhook
+        so that they execute in the context of the child task (instead
+        of in the context of the parent task).
+
+    * File Systems:
+
+      - Several FAT-related bugs fixed by Petteri Aimonen.
+
+    * Networking:
+
+      - Fix poll/select issure reported by Qiang: poll_interrupt() must call
+        net_lostconnection() when a loss of connection is reported.  Otherwise,
+        the system will not remember that the connection has been lost and will
+        hang waiting on a unconnected socket later.
+      - Similar issues corrected for recvfrom() and send().
+      - Telnetd would hang in a loop if recv() ever returned a value <= 0.
+
+    * Libraries:
+
+      - fread() could hang on certain error conditions.
+      - Can't handle SYSLOG output to a character device from  the IDLE task
+        (because the IDLE task can't block). 
+
+    * Build System:
+
+      - Serial was driver was not being built if there is no console
+        device.  Obviously, the serial driver may be needed even in
+        this case.
+
+    * Additional Bugfixes:
+
+      - sig_timedwait() and clock_time2ticks.c: Timing "rounding" logic
+      - ARM9 Compilation issue with low vectors.
+      - readline() return value
+      - Others as detailed in the ChangeLog: HID keyboard, LPC17xx bit
+        definitions, strndup(), PL2303, SYSLOG error handling, AT25,
+        apps/examples.
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