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authorChris Johns <chrisj@rtems.org>2017-12-23 18:18:56 +1100
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-01-25 08:45:26 +0100
commit2afb22b7e1ebcbe40373ff7e0efae7d207c655a9 (patch)
tree44759efe9374f13200a97e96d91bd9a2b7e5ce2a /bsps/m68k/include/mcf548x/mcdma_glue.h
parentMAINTAINERS: Add myself to Write After Approval. (diff)
downloadrtems-2afb22b7e1ebcbe40373ff7e0efae7d207c655a9.tar.bz2
Remove make preinstall
A speciality of the RTEMS build system was the make preinstall step. It copied header files from arbitrary locations into the build tree. The header files were included via the -Bsome/build/tree/path GCC command line option. This has at least seven problems: * The make preinstall step itself needs time and disk space. * Errors in header files show up in the build tree copy. This makes it hard for editors to open the right file to fix the error. * There is no clear relationship between source and build tree header files. This makes an audit of the build process difficult. * The visibility of all header files in the build tree makes it difficult to enforce API barriers. For example it is discouraged to use BSP-specifics in the cpukit. * An introduction of a new build system is difficult. * Include paths specified by the -B option are system headers. This may suppress warnings. * The parallel build had sporadic failures on some hosts. This patch removes the make preinstall step. All installed header files are moved to dedicated include directories in the source tree. Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc, etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g. erc32, imx, qoriq, etc. The new cpukit include directories are: * cpukit/include * cpukit/score/cpu/@RTEMS_CPU@/include * cpukit/libnetworking The new BSP include directories are: * bsps/include * bsps/@RTEMS_CPU@/include * bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include There are build tree include directories for generated files. The include directory order favours the most general header file, e.g. it is not possible to override general header files via the include path order. The "bootstrap -p" option was removed. The new "bootstrap -H" option should be used to regenerate the "headers.am" files. Update #3254.
Diffstat (limited to 'bsps/m68k/include/mcf548x/mcdma_glue.h')
-rw-r--r--bsps/m68k/include/mcf548x/mcdma_glue.h106
1 files changed, 106 insertions, 0 deletions
diff --git a/bsps/m68k/include/mcf548x/mcdma_glue.h b/bsps/m68k/include/mcf548x/mcdma_glue.h
new file mode 100644
index 0000000000..de0621120f
--- /dev/null
+++ b/bsps/m68k/include/mcf548x/mcdma_glue.h
@@ -0,0 +1,106 @@
+/*===============================================================*\
+| Project: RTEMS generic MFC548x BSP |
++-----------------------------------------------------------------+
+| Copyright (c) 2004-2009 |
+| Embedded Brains GmbH |
+| Obere Lagerstr. 30 |
+| D-82178 Puchheim |
+| Germany |
+| rtems@embedded-brains.de |
++-----------------------------------------------------------------+
+| The license and distribution terms for this file may be |
+| found in the file LICENSE in this distribution or at |
+| |
+| http://www.rtems.org/license/LICENSE. |
+| |
++-----------------------------------------------------------------+
+| this file declares glue functions to the Freescale Mcdma API |
+\*===============================================================*/
+#ifndef _MCDMA_GLUE_H
+#define _MCDMA_GLUE_H
+
+#include <rtems.h>
+#include <mcf548x/mcf548x.h>
+
+#define MCDMA_CLR_PENDING(chan) (MCF548X_DMA_DIPR = (1 << (chan)))
+#define MCDMA_GET_PENDING(chan) (MCF548X_DMA_DIPR & (1 << (chan)))
+
+/*=========================================================================*\
+| Function: |
+\*-------------------------------------------------------------------------*/
+void mcdma_glue_irq_enable
+(
+/*-------------------------------------------------------------------------*\
+| Purpose: |
+| enable interrupt for given task number |
++---------------------------------------------------------------------------+
+| Input Parameters: |
+\*-------------------------------------------------------------------------*/
+ int mcdma_taskno /* task number to enable */
+ );
+/*-------------------------------------------------------------------------*\
+| Return Value: |
+| none |
+\*=========================================================================*/
+
+/*=========================================================================*\
+| Function: |
+\*-------------------------------------------------------------------------*/
+void mcdma_glue_irq_disable
+(
+/*-------------------------------------------------------------------------*\
+| Purpose: |
+| disable interrupt for given task number |
++---------------------------------------------------------------------------+
+| Input Parameters: |
+\*-------------------------------------------------------------------------*/
+ int mcdma_taskno /* task number to disable */
+ );
+/*-------------------------------------------------------------------------*\
+| Return Value: |
+| none |
+\*=========================================================================*/
+
+/*=========================================================================*\
+| Function: |
+\*-------------------------------------------------------------------------*/
+void mcdma_glue_irq_install
+(
+/*-------------------------------------------------------------------------*\
+| Purpose: |
+| install given function as mcdma interrupt handler |
++---------------------------------------------------------------------------+
+| Input Parameters: |
+\*-------------------------------------------------------------------------*/
+ int mcdma_taskno, /* task number for handler */
+ void (*the_handler)(rtems_irq_hdl_param), /* function to call */
+ void *the_param
+ );
+/*-------------------------------------------------------------------------*\
+| Return Value: |
+| none |
+\*=========================================================================*/
+
+/*=========================================================================*\
+| Function: |
+\*-------------------------------------------------------------------------*/
+void mcdma_glue_init
+(
+/*-------------------------------------------------------------------------*\
+| Purpose: |
+| initialize the mcdma module (if not yet done): |
+| - load code |
+| - initialize registers |
+| - initialize bus arbiter |
+| - initialize interrupt control |
++---------------------------------------------------------------------------+
+| Input Parameters: |
+\*-------------------------------------------------------------------------*/
+ void *sram_base /* base address for SRAM, to be used for DMA task */
+ );
+/*-------------------------------------------------------------------------*\
+| Return Value: |
+| none |
+\*=========================================================================*/
+
+#endif /* _MCDMA_GLUE_H */