![]() |
![]() |
The file implements the API which is used to close a previously opened EDMA Channel. More...
#include <ti/csl/csl_edma3.h>
Functions | |
CSL_Status | CSL_edma3ChannelClose (CSL_Edma3ChannelHandle hEdma) |
The file implements the API which is used to close a previously opened EDMA Channel.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of Texas Instruments Incorporated nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
CSL_Status CSL_edma3ChannelClose | ( | CSL_Edma3ChannelHandle | hEdma | ) |
============================================================================
csl_edma3ChannelClose.c
Description
This function marks the channel cannot be accessed anymore using the handle. CSL for the EDMA channel need to be reopened before using any edma channel.
Arguments
hEdma Handle to the channel to be closed.
Return Value
Success - CSL_SOK
Error - CSL_ESYS_BADHANDLE (The handle passed is invalid)
Pre Condition
Functions CSL_edma3Init(), CSL_edma3Open(), CSL_edma3ChannelOpen() must be invoked successfully in that order before this API can be invoked.
Post Condition
The edma channel related CSL APIs can not be called until the edma channel is reopened again using CSL_edma3ChannelOpen()
Example
CSL_Edma3Handle hModule; CSL_Edma3Obj edmaObj; CSL_Edma3ChannelObj chObj; CSL_Edma3ChannelHandle hChannel; CSL_Edma3ChannelAttr chAttr; CSL_Status status; // Module Initialization CSL_edma3Init(NULL); // Module Level Open hModule = CSL_edma3Open(&edmaObj, 0, NULL,&status); // Channel 0 Open in context of Shadow region 0 chAttr.regionNum = CSL_EDMA3_REGION_0; chAttr.chaNum = 0; hChannel = CSL_edma3ChannelOpen(&chObj, 0, &chAttr, &status); ... // Close Channel CSL_edma3ChannelClose(hChannel); ...
=============================================================================