163 static void fsl_dma_update_pointers(struct fsl_dma_private *dma_private)  in fsl_dma_update_pointers()  argument
166 		&dma_private->link[dma_private->current_link];  in fsl_dma_update_pointers()
172 	if (dma_private->substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {  in fsl_dma_update_pointers()
173 		link->source_addr = cpu_to_be32(dma_private->dma_buf_next);  in fsl_dma_update_pointers()
176 			upper_32_bits(dma_private->dma_buf_next));  in fsl_dma_update_pointers()
179 		link->dest_addr = cpu_to_be32(dma_private->dma_buf_next);  in fsl_dma_update_pointers()
182 			upper_32_bits(dma_private->dma_buf_next));  in fsl_dma_update_pointers()
187 	dma_private->dma_buf_next += dma_private->period_size;  in fsl_dma_update_pointers()
189 	if (dma_private->dma_buf_next >= dma_private->dma_buf_end)  in fsl_dma_update_pointers()
190 		dma_private->dma_buf_next = dma_private->dma_buf_phys;  in fsl_dma_update_pointers()
192 	if (++dma_private->current_link >= NUM_DMA_LINKS)  in fsl_dma_update_pointers()
193 		dma_private->current_link = 0;  in fsl_dma_update_pointers()
204 	struct fsl_dma_private *dma_private = dev_id;  in fsl_dma_isr()  local
205 	struct snd_pcm_substream *substream = dma_private->substream;  in fsl_dma_isr()
208 	struct ccsr_dma_channel __iomem *dma_channel = dma_private->dma_channel;  in fsl_dma_isr()
251 		if (dma_private->num_periods != NUM_DMA_LINKS)  in fsl_dma_isr()
252 			fsl_dma_update_pointers(dma_private);  in fsl_dma_isr()
392 	struct fsl_dma_private *dma_private;  in fsl_dma_open()  local
420 	dma_private = dma_alloc_coherent(dev, sizeof(struct fsl_dma_private),  in fsl_dma_open()
422 	if (!dma_private) {  in fsl_dma_open()
427 		dma_private->ssi_sxx_phys = dma->ssi_stx_phys;  in fsl_dma_open()
429 		dma_private->ssi_sxx_phys = dma->ssi_srx_phys;  in fsl_dma_open()
431 	dma_private->ssi_fifo_depth = dma->ssi_fifo_depth;  in fsl_dma_open()
432 	dma_private->dma_channel = dma->channel;  in fsl_dma_open()
433 	dma_private->irq = dma->irq;  in fsl_dma_open()
434 	dma_private->substream = substream;  in fsl_dma_open()
435 	dma_private->ld_buf_phys = ld_buf_phys;  in fsl_dma_open()
436 	dma_private->dma_buf_phys = substream->dma_buffer.addr;  in fsl_dma_open()
438 	ret = request_irq(dma_private->irq, fsl_dma_isr, 0, "fsldma-audio",  in fsl_dma_open()
439 			  dma_private);  in fsl_dma_open()
442 			dma_private->irq, ret);  in fsl_dma_open()
444 			dma_private, dma_private->ld_buf_phys);  in fsl_dma_open()
452 	runtime->private_data = dma_private;  in fsl_dma_open()
456 	dma_channel = dma_private->dma_channel;  in fsl_dma_open()
458 	temp_link = dma_private->ld_buf_phys +  in fsl_dma_open()
462 		dma_private->link[i].next = cpu_to_be64(temp_link);  in fsl_dma_open()
467 	dma_private->link[i - 1].next = cpu_to_be64(dma_private->ld_buf_phys);  in fsl_dma_open()
471 		CCSR_DMA_CLNDAR_ADDR(dma_private->ld_buf_phys));  in fsl_dma_open()
473 		CCSR_DMA_ECLNDAR_ADDR(dma_private->ld_buf_phys));  in fsl_dma_open()
541 	struct fsl_dma_private *dma_private = runtime->private_data;  in fsl_dma_hw_params()  local
553 	dma_addr_t ssi_sxx_phys = dma_private->ssi_sxx_phys;  in fsl_dma_hw_params()
565 	struct ccsr_dma_channel __iomem *dma_channel = dma_private->dma_channel;  in fsl_dma_hw_params()
572 	dma_private->period_size = period_size;  in fsl_dma_hw_params()
573 	dma_private->num_periods = params_periods(hw_params);  in fsl_dma_hw_params()
574 	dma_private->dma_buf_end = dma_private->dma_buf_phys + buffer_size;  in fsl_dma_hw_params()
575 	dma_private->dma_buf_next = dma_private->dma_buf_phys +  in fsl_dma_hw_params()
578 	if (dma_private->dma_buf_next >= dma_private->dma_buf_end)  in fsl_dma_hw_params()
580 		dma_private->dma_buf_next = dma_private->dma_buf_phys;  in fsl_dma_hw_params()
639 	mr |= CCSR_DMA_MR_BWC((dma_private->ssi_fifo_depth - 2) * sample_bytes);  in fsl_dma_hw_params()
644 		struct fsl_dma_link_descriptor *link = &dma_private->link[i];  in fsl_dma_hw_params()
704 	struct fsl_dma_private *dma_private = runtime->private_data;  in fsl_dma_pointer()  local
707 	struct ccsr_dma_channel __iomem *dma_channel = dma_private->dma_channel;  in fsl_dma_pointer()
739 	if ((position < dma_private->dma_buf_phys) ||  in fsl_dma_pointer()
740 	    (position > dma_private->dma_buf_end)) {  in fsl_dma_pointer()
745 	frames = bytes_to_frames(runtime, position - dma_private->dma_buf_phys);  in fsl_dma_pointer()
768 	struct fsl_dma_private *dma_private = runtime->private_data;  in fsl_dma_hw_free()  local
770 	if (dma_private) {  in fsl_dma_hw_free()
773 		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
807 	if (dma_private) {  in fsl_dma_close()
808 		if (dma_private->irq)  in fsl_dma_close()
809 			free_irq(dma_private->irq, dma_private);  in fsl_dma_close()
813 				  dma_private, dma_private->ld_buf_phys);  in fsl_dma_close()