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Added getChannelTransitionSize function 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@11532 35acf78f-673a-0410-8e92-d51de3d6d3f4
This commit is contained in:
edolomb 2018-02-21 20:56:14 +00:00
parent 43185af232
commit b75eda3185
1 changed files with 14 additions and 0 deletions
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14
os/hal/ports/SAMA/LLD/DMAv1/sama_xdmac.h
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@ -143,6 +143,20 @@ typedef struct {
#define dmaGetChannelInt(dmachp) \
(dmachp)->xdmac->XDMAC_CHID[(dmachp)->chid].XDMAC_CIS
/**
* @brief Returns the number of transfers to be performed.
* @note This function can be invoked in both ISR or thread context.
* @pre The stream must have been allocated using @p dmaChannelAllocate().
* @post After use the stream can be released using @p dmaChannelRelease().
*
* @param[in] dmachp pointer to a @p sama_dma_channel_t structure
* @return The number of transfers to be performed.
*
* @special
*/
#define dmaChannelGetTransactionSize(dmachp) \
((size_t)((dmachp)->xdmac->XDMAC_CHID[(dmachp)->chid].XDMAC_CUBC))
/**
* @brief Associates a source to a DMA channel.
* @note This function can be invoked in both ISR or thread context.