160 static void fsl_dma_update_pointers(struct fsl_dma_private *dma_private)  in fsl_dma_update_pointers()  argument
163 		&dma_private->link[dma_private->current_link];  in fsl_dma_update_pointers()
169 	if (dma_private->substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {  in fsl_dma_update_pointers()
170 		link->source_addr = cpu_to_be32(dma_private->dma_buf_next);  in fsl_dma_update_pointers()
173 			upper_32_bits(dma_private->dma_buf_next));  in fsl_dma_update_pointers()
176 		link->dest_addr = cpu_to_be32(dma_private->dma_buf_next);  in fsl_dma_update_pointers()
179 			upper_32_bits(dma_private->dma_buf_next));  in fsl_dma_update_pointers()
184 	dma_private->dma_buf_next += dma_private->period_size;  in fsl_dma_update_pointers()
186 	if (dma_private->dma_buf_next >= dma_private->dma_buf_end)  in fsl_dma_update_pointers()
187 		dma_private->dma_buf_next = dma_private->dma_buf_phys;  in fsl_dma_update_pointers()
189 	if (++dma_private->current_link >= NUM_DMA_LINKS)  in fsl_dma_update_pointers()
190 		dma_private->current_link = 0;  in fsl_dma_update_pointers()
201 	struct fsl_dma_private *dma_private = dev_id;  in fsl_dma_isr()  local
202 	struct snd_pcm_substream *substream = dma_private->substream;  in fsl_dma_isr()
205 	struct ccsr_dma_channel __iomem *dma_channel = dma_private->dma_channel;  in fsl_dma_isr()
248 		if (dma_private->num_periods != NUM_DMA_LINKS)  in fsl_dma_isr()
249 			fsl_dma_update_pointers(dma_private);  in fsl_dma_isr()
390 	struct fsl_dma_private *dma_private;  in fsl_dma_open()  local
418 	dma_private = dma_alloc_coherent(dev, sizeof(struct fsl_dma_private),  in fsl_dma_open()
420 	if (!dma_private) {  in fsl_dma_open()
425 		dma_private->ssi_sxx_phys = dma->ssi_stx_phys;  in fsl_dma_open()
427 		dma_private->ssi_sxx_phys = dma->ssi_srx_phys;  in fsl_dma_open()
429 	dma_private->ssi_fifo_depth = dma->ssi_fifo_depth;  in fsl_dma_open()
430 	dma_private->dma_channel = dma->channel;  in fsl_dma_open()
431 	dma_private->irq = dma->irq;  in fsl_dma_open()
432 	dma_private->substream = substream;  in fsl_dma_open()
433 	dma_private->ld_buf_phys = ld_buf_phys;  in fsl_dma_open()
434 	dma_private->dma_buf_phys = substream->dma_buffer.addr;  in fsl_dma_open()
436 	ret = request_irq(dma_private->irq, fsl_dma_isr, 0, "fsldma-audio",  in fsl_dma_open()
437 			  dma_private);  in fsl_dma_open()
440 			dma_private->irq, ret);  in fsl_dma_open()
442 			dma_private, dma_private->ld_buf_phys);  in fsl_dma_open()
450 	runtime->private_data = dma_private;  in fsl_dma_open()
454 	dma_channel = dma_private->dma_channel;  in fsl_dma_open()
456 	temp_link = dma_private->ld_buf_phys +  in fsl_dma_open()
460 		dma_private->link[i].next = cpu_to_be64(temp_link);  in fsl_dma_open()
465 	dma_private->link[i - 1].next = cpu_to_be64(dma_private->ld_buf_phys);  in fsl_dma_open()
469 		CCSR_DMA_CLNDAR_ADDR(dma_private->ld_buf_phys));  in fsl_dma_open()
471 		CCSR_DMA_ECLNDAR_ADDR(dma_private->ld_buf_phys));  in fsl_dma_open()
540 	struct fsl_dma_private *dma_private = runtime->private_data;  in fsl_dma_hw_params()  local
551 	dma_addr_t ssi_sxx_phys = dma_private->ssi_sxx_phys;  in fsl_dma_hw_params()
563 	struct ccsr_dma_channel __iomem *dma_channel = dma_private->dma_channel;  in fsl_dma_hw_params()
570 	dma_private->period_size = period_size;  in fsl_dma_hw_params()
571 	dma_private->num_periods = params_periods(hw_params);  in fsl_dma_hw_params()
572 	dma_private->dma_buf_end = dma_private->dma_buf_phys + buffer_size;  in fsl_dma_hw_params()
573 	dma_private->dma_buf_next = dma_private->dma_buf_phys +  in fsl_dma_hw_params()
576 	if (dma_private->dma_buf_next >= dma_private->dma_buf_end)  in fsl_dma_hw_params()
578 		dma_private->dma_buf_next = dma_private->dma_buf_phys;  in fsl_dma_hw_params()
637 	mr |= CCSR_DMA_MR_BWC((dma_private->ssi_fifo_depth - 2) * sample_bytes);  in fsl_dma_hw_params()
642 		struct fsl_dma_link_descriptor *link = &dma_private->link[i];  in fsl_dma_hw_params()
703 	struct fsl_dma_private *dma_private = runtime->private_data;  in fsl_dma_pointer()  local
705 	struct ccsr_dma_channel __iomem *dma_channel = dma_private->dma_channel;  in fsl_dma_pointer()
737 	if ((position < dma_private->dma_buf_phys) ||  in fsl_dma_pointer()
738 	    (position > dma_private->dma_buf_end)) {  in fsl_dma_pointer()
743 	frames = bytes_to_frames(runtime, position - dma_private->dma_buf_phys);  in fsl_dma_pointer()
767 	struct fsl_dma_private *dma_private = runtime->private_data;  in fsl_dma_hw_free()  local
769 	if (dma_private) {  in fsl_dma_hw_free()
772 		dma_channel = dma_private->dma_channel;  in fsl_dma_hw_free()
801 	struct fsl_dma_private *dma_private = runtime->private_data;  in fsl_dma_close()  local
806 	if (dma_private) {  in fsl_dma_close()
807 		if (dma_private->irq)  in fsl_dma_close()
808 			free_irq(dma_private->irq, dma_private);  in fsl_dma_close()
812 				  dma_private, dma_private->ld_buf_phys);  in fsl_dma_close()