dma/dw-edma/dw-edma-core.c

362 dw_edma_device_transfer(struct dw_edma_transfer *xfer)
364 	struct dw_edma_chan *chan = dchan2dw_edma_chan(xfer->dchan);
365 	enum dma_transfer_direction dir = xfer->direction;
414 	if (xfer->type == EDMA_XFER_CYCLIC) {
415 		if (!xfer->xfer.cyclic.len || !xfer->xfer.cyclic.cnt)
417 	} else if (xfer->type == EDMA_XFER_SCATTER_GATHER) {
418 		if (xfer->xfer.sg.len < 1)
420 	} else if (xfer->type == EDMA_XFER_INTERLEAVED) {
421 		if (!xfer->xfer.il->numf || xfer->xfer.il->frame_size < 1)
423 		if (!xfer->xfer.il->src_inc || !xfer->xfer.il->dst_inc)
437 	if (xfer->type == EDMA_XFER_INTERLEAVED) {
438 		src_addr = xfer->xfer.il->src_start;
439 		dst_addr = xfer->xfer.il->dst_start;
450 	if (xfer->type == EDMA_XFER_CYCLIC) {
451 		cnt = xfer->xfer.cyclic.cnt;
452 	} else if (xfer->type == EDMA_XFER_SCATTER_GATHER) {
453 		cnt = xfer->xfer.sg.len;
454 		sg = xfer->xfer.sg.sgl;
455 	} else if (xfer->type == EDMA_XFER_INTERLEAVED) {
456 		cnt = xfer->xfer.il->numf * xfer->xfer.il->frame_size;
457 		fsz = xfer->xfer.il->frame_size;
461 		if (xfer->type == EDMA_XFER_SCATTER_GATHER && !sg)
474 		if (xfer->type == EDMA_XFER_CYCLIC)
475 			burst->sz = xfer->xfer.cyclic.len;
476 		else if (xfer->type == EDMA_XFER_SCATTER_GATHER)
478 		else if (xfer->type == EDMA_XFER_INTERLEAVED)
479 			burst->sz = xfer->xfer.il->sgl[i % fsz].size;
486 			if (xfer->type == EDMA_XFER_CYCLIC) {
487 				burst->dar = xfer->xfer.cyclic.paddr;
488 			} else if (xfer->type == EDMA_XFER_SCATTER_GATHER) {
498 			} else if (xfer->type == EDMA_XFER_INTERLEAVED) {
503 			if (xfer->type == EDMA_XFER_CYCLIC) {
504 				burst->sar = xfer->xfer.cyclic.paddr;
505 			} else if (xfer->type == EDMA_XFER_SCATTER_GATHER) {
515 			}  else if (xfer->type == EDMA_XFER_INTERLEAVED) {
520 		if (xfer->type == EDMA_XFER_SCATTER_GATHER) {
522 		} else if (xfer->type == EDMA_XFER_INTERLEAVED) {
523 			struct dma_interleaved_template *il = xfer->xfer.il;
536 	return vchan_tx_prep(&chan->vc, &desc->vd, xfer->flags);
551 	struct dw_edma_transfer xfer;
553 	xfer.dchan = dchan;
554 	xfer.direction = direction;
555 	xfer.xfer.sg.sgl = sgl;
556 	xfer.xfer.sg.len = len;
557 	xfer.flags = flags;
558 	xfer.type = EDMA_XFER_SCATTER_GATHER;
560 	return dw_edma_device_transfer(&xfer);
569 	struct dw_edma_transfer xfer;
571 	xfer.dchan = dchan;
572 	xfer.direction = direction;
573 	xfer.xfer.cyclic.paddr = paddr;
574 	xfer.xfer.cyclic.len = len;
575 	xfer.xfer.cyclic.cnt = count;
576 	xfer.flags = flags;
577 	xfer.type = EDMA_XFER_CYCLIC;
579 	return dw_edma_device_transfer(&xfer);
587 	struct dw_edma_transfer xfer;
589 	xfer.dchan = dchan;
590 	xfer.direction = ilt->dir;
591 	xfer.xfer.il = ilt;
592 	xfer.flags = flags;
593 	xfer.type = EDMA_XFER_INTERLEAVED;
595 	return dw_edma_device_transfer(&xfer);