379 lines
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379 lines
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<div class="title">FlexCAN eDMA Driver<div class="ingroups"><a class="el" href="group__flexcan.html">FlexCAN: Flex Controller Area Network Driver</a></div></div> </div>
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<a name="details" id="details"></a><h2 class="groupheader">Overview</h2>
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Files</h2></td></tr>
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<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
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Data Structures</h2></td></tr>
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<tr class="memitem:struct__flexcan__edma__handle"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flexcan__edma__driver.html#struct__flexcan__edma__handle">flexcan_edma_handle_t</a></td></tr>
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<tr class="memdesc:struct__flexcan__edma__handle"><td class="mdescLeft"> </td><td class="mdescRight">FlexCAN eDMA handle. <a href="group__flexcan__edma__driver.html#struct__flexcan__edma__handle">More...</a><br/></td></tr>
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<tr class="separator:struct__flexcan__edma__handle"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
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Typedefs</h2></td></tr>
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<tr class="memitem:ga200b7c77f4d5b5495193e58772e12c68"><td class="memItemLeft" align="right" valign="top">typedef void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flexcan__edma__driver.html#ga200b7c77f4d5b5495193e58772e12c68">flexcan_edma_transfer_callback_t</a> )(CAN_Type *base, flexcan_edma_handle_t *handle, status_t status, void *userData)</td></tr>
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<tr class="memdesc:ga200b7c77f4d5b5495193e58772e12c68"><td class="mdescLeft"> </td><td class="mdescRight">FlexCAN transfer callback function. <a href="#ga200b7c77f4d5b5495193e58772e12c68">More...</a><br/></td></tr>
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<tr class="separator:ga200b7c77f4d5b5495193e58772e12c68"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="member-group"></a>
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eDMA transactional</h2></td></tr>
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<tr class="memitem:ga1ca334397a0902a09b8b7ddd4a73d87b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flexcan__edma__driver.html#ga1ca334397a0902a09b8b7ddd4a73d87b">FLEXCAN_TransferCreateHandleEDMA</a> (CAN_Type *base, flexcan_edma_handle_t *handle, <a class="el" href="group__flexcan__edma__driver.html#ga200b7c77f4d5b5495193e58772e12c68">flexcan_edma_transfer_callback_t</a> callback, void *userData, <a class="el" href="group__edma__driver.html#structedma__handle__t">edma_handle_t</a> *rxFifoEdmaHandle)</td></tr>
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<tr class="memdesc:ga1ca334397a0902a09b8b7ddd4a73d87b"><td class="mdescLeft"> </td><td class="mdescRight">Initializes the FlexCAN handle, which is used in transactional functions. <a href="#ga1ca334397a0902a09b8b7ddd4a73d87b">More...</a><br/></td></tr>
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<tr class="separator:ga1ca334397a0902a09b8b7ddd4a73d87b"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga153f2e62a0aff73b242fee109896c34e"><td class="memItemLeft" align="right" valign="top">status_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flexcan__edma__driver.html#ga153f2e62a0aff73b242fee109896c34e">FLEXCAN_TransferReceiveFifoEDMA</a> (CAN_Type *base, flexcan_edma_handle_t *handle, <a class="el" href="group__flexcan__driver.html#structflexcan__fifo__transfer__t">flexcan_fifo_transfer_t</a> *xfer)</td></tr>
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<tr class="memdesc:ga153f2e62a0aff73b242fee109896c34e"><td class="mdescLeft"> </td><td class="mdescRight">Receives the CAN Message from the Rx FIFO using eDMA. <a href="#ga153f2e62a0aff73b242fee109896c34e">More...</a><br/></td></tr>
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<tr class="separator:ga153f2e62a0aff73b242fee109896c34e"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga518cce21e8dde19dc32b21a68c549b1b"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flexcan__edma__driver.html#ga518cce21e8dde19dc32b21a68c549b1b">FLEXCAN_TransferAbortReceiveFifoEDMA</a> (CAN_Type *base, flexcan_edma_handle_t *handle)</td></tr>
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<tr class="memdesc:ga518cce21e8dde19dc32b21a68c549b1b"><td class="mdescLeft"> </td><td class="mdescRight">Aborts the receive process which used eDMA. <a href="#ga518cce21e8dde19dc32b21a68c549b1b">More...</a><br/></td></tr>
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<tr class="separator:ga518cce21e8dde19dc32b21a68c549b1b"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<hr/><h2 class="groupheader">Data Structure Documentation</h2>
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<a name="struct__flexcan__edma__handle" id="struct__flexcan__edma__handle"></a>
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<td class="memname">struct _flexcan_edma_handle</td>
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<div class="textblock"></div><table class="memberdecls">
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<tr><td colspan="2"><h3>Data Fields</h3></td></tr>
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<tr class="memitem:a63bbb14985ea667bb86d933782244ebe"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__flexcan__edma__driver.html#ga200b7c77f4d5b5495193e58772e12c68">flexcan_edma_transfer_callback_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flexcan__edma__driver.html#a63bbb14985ea667bb86d933782244ebe">callback</a></td></tr>
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<tr class="memdesc:a63bbb14985ea667bb86d933782244ebe"><td class="mdescLeft"> </td><td class="mdescRight">Callback function. <a href="#a63bbb14985ea667bb86d933782244ebe">More...</a><br/></td></tr>
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<tr class="separator:a63bbb14985ea667bb86d933782244ebe"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a8408c788bc9497c7a74811940a28bce7"><td class="memItemLeft" align="right" valign="top">void * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flexcan__edma__driver.html#a8408c788bc9497c7a74811940a28bce7">userData</a></td></tr>
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<tr class="memdesc:a8408c788bc9497c7a74811940a28bce7"><td class="mdescLeft"> </td><td class="mdescRight">FlexCAN callback function parameter. <a href="#a8408c788bc9497c7a74811940a28bce7">More...</a><br/></td></tr>
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<tr class="separator:a8408c788bc9497c7a74811940a28bce7"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:a923894ca8505812ac61ad5632677a7d2"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__edma__driver.html#structedma__handle__t">edma_handle_t</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flexcan__edma__driver.html#a923894ca8505812ac61ad5632677a7d2">rxFifoEdmaHandle</a></td></tr>
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<tr class="memdesc:a923894ca8505812ac61ad5632677a7d2"><td class="mdescLeft"> </td><td class="mdescRight">The EDMA Rx FIFO channel used. <a href="#a923894ca8505812ac61ad5632677a7d2">More...</a><br/></td></tr>
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<tr class="separator:a923894ca8505812ac61ad5632677a7d2"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:af08257e6fde0f8f49d152ab07264dfd3"><td class="memItemLeft" align="right" valign="top">volatile uint8_t </td><td class="memItemRight" valign="bottom"><a class="el" href="group__flexcan__edma__driver.html#af08257e6fde0f8f49d152ab07264dfd3">rxFifoState</a></td></tr>
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<tr class="memdesc:af08257e6fde0f8f49d152ab07264dfd3"><td class="mdescLeft"> </td><td class="mdescRight">Rx FIFO transfer state. <a href="#af08257e6fde0f8f49d152ab07264dfd3">More...</a><br/></td></tr>
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<tr class="separator:af08257e6fde0f8f49d152ab07264dfd3"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<h4 class="groupheader">Field Documentation</h4>
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<td class="memname"><a class="el" href="group__flexcan__edma__driver.html#ga200b7c77f4d5b5495193e58772e12c68">flexcan_edma_transfer_callback_t</a> flexcan_edma_handle_t::callback</td>
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<a class="anchor" id="a8408c788bc9497c7a74811940a28bce7"></a>
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<td class="memname">void* flexcan_edma_handle_t::userData</td>
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<td class="memname"><a class="el" href="group__edma__driver.html#structedma__handle__t">edma_handle_t</a>* flexcan_edma_handle_t::rxFifoEdmaHandle</td>
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<td class="memname">volatile uint8_t flexcan_edma_handle_t::rxFifoState</td>
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<h2 class="groupheader">Typedef Documentation</h2>
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<td class="memname">typedef void(* flexcan_edma_transfer_callback_t)(CAN_Type *base, flexcan_edma_handle_t *handle, status_t status, void *userData)</td>
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<h2 class="groupheader">Function Documentation</h2>
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<td class="memname">void FLEXCAN_TransferCreateHandleEDMA </td>
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<td>(</td>
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<td class="paramtype">CAN_Type * </td>
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<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype">flexcan_edma_handle_t * </td>
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<td class="paramname"><em>handle</em>, </td>
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<td></td>
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<td class="paramtype"><a class="el" href="group__flexcan__edma__driver.html#ga200b7c77f4d5b5495193e58772e12c68">flexcan_edma_transfer_callback_t</a> </td>
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<td class="paramname"><em>callback</em>, </td>
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<td class="paramtype">void * </td>
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<td class="paramname"><em>userData</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype"><a class="el" href="group__edma__driver.html#structedma__handle__t">edma_handle_t</a> * </td>
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<td class="paramname"><em>rxFifoEdmaHandle</em> </td>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">base</td><td>FlexCAN peripheral base address. </td></tr>
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<tr><td class="paramname">handle</td><td>Pointer to flexcan_edma_handle_t structure. </td></tr>
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<tr><td class="paramname">callback</td><td>The callback function. </td></tr>
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<tr><td class="paramname">userData</td><td>The parameter of the callback function. </td></tr>
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<tr><td class="paramname">rxFifoEdmaHandle</td><td>User-requested DMA handle for Rx FIFO DMA transfer. </td></tr>
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<td class="memname">status_t FLEXCAN_TransferReceiveFifoEDMA </td>
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<td>(</td>
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<td class="paramtype">CAN_Type * </td>
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<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">flexcan_edma_handle_t * </td>
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<td class="paramname"><em>handle</em>, </td>
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<td class="paramtype"><a class="el" href="group__flexcan__driver.html#structflexcan__fifo__transfer__t">flexcan_fifo_transfer_t</a> * </td>
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<td class="paramname"><em>xfer</em> </td>
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<p>This function receives the CAN Message using eDMA. This is a non-blocking function, which returns right away. After the CAN Message is received, the receive callback function is called.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">base</td><td>FlexCAN peripheral base address. </td></tr>
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<tr><td class="paramname">handle</td><td>Pointer to flexcan_edma_handle_t structure. </td></tr>
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<tr><td class="paramname">xfer</td><td>FlexCAN Rx FIFO EDMA transfer structure, see <a class="el" href="group__flexcan__driver.html#structflexcan__fifo__transfer__t" title="FlexCAN Rx FIFO transfer. ">flexcan_fifo_transfer_t</a>. </td></tr>
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<dl class="retval"><dt>Return values</dt><dd>
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<tr><td class="paramname">kStatus_Success</td><td>if succeed, others failed. </td></tr>
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<tr><td class="paramname">kStatus_FLEXCAN_RxFifoBusy</td><td>Previous transfer ongoing. </td></tr>
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<td class="memname">void FLEXCAN_TransferAbortReceiveFifoEDMA </td>
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<td>(</td>
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<td class="paramtype">CAN_Type * </td>
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<td class="paramname"><em>base</em>, </td>
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<td class="paramkey"></td>
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<td></td>
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<td class="paramtype">flexcan_edma_handle_t * </td>
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<td class="paramname"><em>handle</em> </td>
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<td></td>
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<p>This function aborts the receive process which used eDMA.</p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">base</td><td>FlexCAN peripheral base address. </td></tr>
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<tr><td class="paramname">handle</td><td>Pointer to flexcan_edma_handle_t structure. </td></tr>
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</table>
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</dd>
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</dl>
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