97 	struct audiopipe *pipe = runtime->private_data;  in audiopipe_free()  local
99 	if (pipe->sgpage.area)  in audiopipe_free()
100 		snd_dma_free_pages(&pipe->sgpage);  in audiopipe_free()
101 	kfree(pipe);  in audiopipe_free()
270 	struct audiopipe *pipe;  in pcm_open()  local
279 	pipe = kzalloc(sizeof(struct audiopipe), GFP_KERNEL);  in pcm_open()
280 	if (!pipe)  in pcm_open()
282 	pipe->index = -1;		/* Not configured yet */  in pcm_open()
285 	memcpy(&pipe->hw, &pcm_hardware_skel, sizeof(struct snd_pcm_hardware));  in pcm_open()
287 	pipe->constr.list = channels_list;  in pcm_open()
288 	pipe->constr.mask = 0;  in pcm_open()
290 	pipe->constr.count = i;  in pcm_open()
291 	if (pipe->hw.channels_max > max_channels)  in pcm_open()
292 		pipe->hw.channels_max = max_channels;  in pcm_open()
294 		pipe->hw.rate_max = 48000;  in pcm_open()
295 		pipe->hw.rates &= SNDRV_PCM_RATE_8000_48000;  in pcm_open()
298 	runtime->hw = pipe->hw;  in pcm_open()
299 	runtime->private_data = pipe;  in pcm_open()
306 					 &pipe->constr);  in pcm_open()
338 				  PAGE_SIZE, &pipe->sgpage);  in pcm_open()
542 	struct audiopipe *pipe;  in init_engine()  local
545 	pipe = (struct audiopipe *) substream->runtime->private_data;  in init_engine()
551 	if (pipe->index >= 0) {  in init_engine()
552 		dev_dbg(chip->card->dev, "hwp_ie free(%d)\n", pipe->index);  in init_engine()
553 		err = free_pipes(chip, pipe);  in init_engine()
555 		chip->substream[pipe->index] = NULL;  in init_engine()
558 	err = allocate_pipes(chip, pipe, pipe_index, interleave);  in init_engine()
573 	sglist_init(chip, pipe);  in init_engine()
584 				sglist_add_mapping(chip, pipe, addr, rest);  in init_engine()
585 				sglist_add_irq(chip, pipe);  in init_engine()
589 				sglist_add_mapping(chip, pipe, addr,  in init_engine()
602 	sglist_wrap(chip, pipe);  in init_engine()
607 	pipe->last_period = 0;  in init_engine()
608 	pipe->last_counter = 0;  in init_engine()
609 	pipe->position = 0;  in init_engine()
672 	struct audiopipe *pipe;  in pcm_hw_free()  local
675 	pipe = (struct audiopipe *) substream->runtime->private_data;  in pcm_hw_free()
678 	if (pipe->index >= 0) {  in pcm_hw_free()
679 		dev_dbg(chip->card->dev, "pcm_hw_free(%d)\n", pipe->index);  in pcm_hw_free()
680 		free_pipes(chip, pipe);  in pcm_hw_free()
681 		chip->substream[pipe->index] = NULL;  in pcm_hw_free()
682 		pipe->index = -1;  in pcm_hw_free()
752 	struct audiopipe *pipe;  in pcm_trigger()  local
773 				pipe = chip->substream[i]->runtime->private_data;  in pcm_trigger()
774 				switch (pipe->state) {  in pcm_trigger()
776 					pipe->last_period = 0;  in pcm_trigger()
777 					pipe->last_counter = 0;  in pcm_trigger()
778 					pipe->position = 0;  in pcm_trigger()
779 					*pipe->dma_counter = 0;  in pcm_trigger()
782 					pipe->state = PIPE_STATE_STARTED;  in pcm_trigger()
796 				pipe = chip->substream[i]->runtime->private_data;  in pcm_trigger()
797 				pipe->state = PIPE_STATE_STOPPED;  in pcm_trigger()
805 				pipe = chip->substream[i]->runtime->private_data;  in pcm_trigger()
806 				pipe->state = PIPE_STATE_PAUSED;  in pcm_trigger()
823 	struct audiopipe *pipe = runtime->private_data;  in pcm_pointer()  local
831 	counter = le32_to_cpu(*pipe->dma_counter);  /* presumed atomic */  in pcm_pointer()
833 	step = counter - pipe->last_counter;  /* handles wrapping */  in pcm_pointer()
834 	pipe->last_counter = counter;  in pcm_pointer()
840 	pipe->position += step;  in pcm_pointer()
841 	pipe->position %= frames_to_bytes(runtime, runtime->buffer_size); /* wrap */  in pcm_pointer()
843 	return bytes_to_frames(runtime, pipe->position);  in pcm_pointer()
1823 	struct audiopipe *pipe = runtime->private_data;  in period_has_elapsed()  local
1827 	if (pipe->state != PIPE_STATE_STARTED)  in period_has_elapsed()
1832 	counter = le32_to_cpu(*pipe->dma_counter);  /* presumed atomic */  in period_has_elapsed()
1834 	step = counter - pipe->last_period;  /* handles wrapping */  in period_has_elapsed()
1840 	pipe->last_period += step;  /* used exclusively by us */  in period_has_elapsed()