DSP

dm8127 dsp edma 拷贝数据

2019-07-13 11:21发布

站内文章 / DSP
10173 0 1538
edma简介 http://blog.sina.com.cn/s/blog_4512a68501000ah4.html http://blog.sina.com.cn/s/blog_4512a68501000ah3.html   /* FD link copy frames */ /* =================================================================== * @func FdLink_copyFrames * * @desc Function does the following * * @modif This function modifies the following structures * * @inputs This function takes the following inputs * * Description of usage * * Description of usage * * @outputs * Description of usage * * @return Return value of this function if any * ================================================================== */ Int32 FdLink_copyFrames(FdLink_Obj * pObj) { Int32 status; Int32 frameId; UInt32 edmaWidth, edmaHeight; FVID2_Frame *pEmptyFrame; FVID2_Frame *pFullFrame; FVID2_FrameList frameList; System_LinkInQueParams *pInQueParams; /* Get the full frames from the previous link */ pInQueParams = &pObj->createArgs.inQueParams; System_getLinksFullFrames(pInQueParams->prevLinkId, pInQueParams->prevLinkQueId, &frameList); if (frameList.numFrames) { for (frameId = 0; frameId < frameList.numFrames; frameId++) { /* Post Frame Sync SWOSD sem */ SwosdLink_postFrameSyncSem(pObj->createArgs.swOsdId); /* Get the FD empty bufs if any */ status = Utils_bufGetEmptyFrame(&pObj->outFrameQue, &pEmptyFrame, BIOS_NO_WAIT); if ((status == FVID2_SOK) && (pEmptyFrame != NULL)) { pFullFrame = frameList.frames[frameId]; /* copy the frame */ edmaWidth = pObj->algHndl.fdWidth; edmaHeight = pObj->algHndl.fdHeight; pEmptyFrame->timeStamp = pFullFrame->timeStamp; /* copy only Y plane as FD works only on Y plane */ DM81XX_EDMA3_setParams(FD_LINK_EDMA3_CH_ID, // chId FD_LINK_EDMA3_QUEUE_ID, // dmaQueue (UInt32) pFullFrame->addr[0][0], // srcAddr (UInt32) pEmptyFrame->addr[0][0], // dstAddr edmaWidth, // edmaWidth edmaHeight, // edmaHeight edmaWidth, // srcLineOffset edmaWidth); // dstLineOffset /* Trigger the edma transfer */ DM81XX_EDMA3_triggerTransfer(FD_LINK_EDMA3_CH_ID); /* put the buffer into full queue */ status = Utils_bufPutFullFrame(&pObj->outFrameQue, pEmptyFrame); UTILS_assert(status == FVID2_SOK); } } /* Put the full buffers bacl to previous link */ System_putLinksEmptyFrames(pInQueParams->prevLinkId, pInQueParams->prevLinkQueId, &frameList); } return FVID2_SOK; }
  Int32 VaLink_algCopyFrames(VaLink_Obj *pObj) { Int32 status; Int32 ret = FVID2_EFAIL; Int32 frameId; UInt32 edmaWidth, edmaHeight; FVID2_Frame *pEmptyFrame; FVID2_Frame *pFullFrame; FVID2_FrameList frameList; System_LinkInQueParams *pInQueParams; VaLink_algObj *pAlgObj = &pObj->algObj; /* Get the full frames from the previous link */ pInQueParams = &pObj->createArgs.inQueParams; System_getLinksFullFrames(pInQueParams->prevLinkId, pInQueParams->prevLinkQueId, &frameList); if (frameList.numFrames) { for (frameId = 0; frameId < frameList.numFrames; frameId++) { if(Utils_doSkipFrame(&pAlgObj->frameSkipContext) == FALSE) { /* Get the VA empty bufs if any */ status = Utils_bufGetEmptyFrame(&pObj->outFrameQue, &pEmptyFrame,BIOS_NO_WAIT); if ((status == FVID2_SOK) && (pEmptyFrame != NULL)) { pFullFrame = frameList.frames[frameId]; /* copy the frame */ edmaWidth = pObj->inQueInfo.chInfo[0].width; edmaHeight = pObj->inQueInfo.chInfo[0].height; /* copy Y plane */ DM81XX_EDMA3_setParams(VA_LINK_EDMA3_CH_ID, // chId VA_LINK_EDMA3_QUEUE_ID, // dmaQueue (UInt32)pFullFrame->addr[0][0], // srcAddr (UInt32)pEmptyFrame->addr[0][0], // dstAddr edmaWidth, // edmaWidth edmaHeight, // edmaHeight edmaWidth, // srcLineOffset edmaWidth); // dstLineOffset /* Trigger the edma transfer */ DM81XX_EDMA3_triggerTransfer(VA_LINK_EDMA3_CH_ID); pEmptyFrame->timeStamp = pFullFrame->timeStamp; /* put the buffer into full queue */ status = Utils_bufPutFullFrame(&pObj->outFrameQue, pEmptyFrame); UTILS_assert(status == FVID2_SOK); ret = FVID2_SOK; } } } /* Put the full buffers bacl to previous link */ System_putLinksEmptyFrames(pInQueParams->prevLinkId, pInQueParams->prevLinkQueId, &frameList); } return ret; }

热门文章