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Fix MMC/SD support for Wildfire board; Granule allocator can now be used from intrrupt handler

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5134 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2012-09-12 15:18:56 +00:00
parent 3ed92de6eb
commit 6474398297
11 changed files with 62 additions and 59 deletions
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include/nuttx/gran.h
+6 -1
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@@ -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.
*/