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| author | patacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679> | 2012-09-12 15:18:56 +0000 |
|---|---|---|
| committer | patacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679> | 2012-09-12 15:18:56 +0000 |
| commit | eac15a4720dd9d514ab7d683fb68797c174293cc (patch) | |
| tree | 17de2185cab9be6f29164a2336855a57b8495627 /nuttx/include | |
| parent | 1b7dad5a765bc86ee194f72b7a75d76b93e87943 (diff) | |
| download | px4-firmware-eac15a4720dd9d514ab7d683fb68797c174293cc.tar.gz px4-firmware-eac15a4720dd9d514ab7d683fb68797c174293cc.tar.bz2 px4-firmware-eac15a4720dd9d514ab7d683fb68797c174293cc.zip | |
Fix MMC/SD support for Wildfire board; Granule allocator can now be used from intrrupt handler
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@5134 7fd9a85b-ad96-42d3-883c-3090e2eb8679
Diffstat (limited to 'nuttx/include')
| -rw-r--r-- | nuttx/include/nuttx/gran.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/nuttx/include/nuttx/gran.h b/nuttx/include/nuttx/gran.h index 8e009ab81..f3a6d0fe9 100644 --- a/nuttx/include/nuttx/gran.h +++ b/nuttx/include/nuttx/gran.h @@ -2,7 +2,7 @@ * include/nuttx/gran.h * General purpose granule memory allocator. * - * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Copyright (C) 2012 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> * * Redistribution and use in source and binary forms, with or without @@ -57,6 +57,11 @@ * granule allocator (i.e., gran_initialize will be called only once. * In this case, (1) there are a few optimizations that can can be done * and (2) the GRAN_HANDLE is not needed. + * CONFIG_GRAN_INTR - Normally mutual exclusive access to granule allocator + * data is assured using a semaphore. If this option is set then, instead, + * mutual exclusion logic will disable interrupts. While this options is + * more invasive to system performance, it will also support use of the + * granule allocator from interrupt level logic. * CONFIG_DEBUG_GRAN - Just like CONFIG_DEBUG_MM, but only generates ouput * from the gran allocation logic. */ |