60 static void vx_pcm_read_per_bytes(struct vx_core *chip, struct snd_pcm_runtime *runtime,  in vx_pcm_read_per_bytes()  argument
64 	unsigned char *buf = (unsigned char *)(runtime->dma_area + offset);  in vx_pcm_read_per_bytes()
68 		buf = (unsigned char *)runtime->dma_area;  in vx_pcm_read_per_bytes()
73 		buf = (unsigned char *)runtime->dma_area;  in vx_pcm_read_per_bytes()
78 		buf = (unsigned char *)runtime->dma_area;  in vx_pcm_read_per_bytes()
167 			 struct snd_pcm_runtime *runtime)  in vx_set_format()  argument
171 	if (runtime->channels == 1)  in vx_set_format()
173 	if (snd_pcm_format_little_endian(runtime->format))  in vx_set_format()
175 	if (runtime->rate < 32000 && runtime->rate > 11025)  in vx_set_format()
177 	else if (runtime->rate <= 11025)  in vx_set_format()
180 	switch (snd_pcm_format_physical_width(runtime->format)) {  in vx_set_format()
528 	struct snd_pcm_runtime *runtime = subs->runtime;  in vx_pcm_playback_open()  local
556 	runtime->hw = vx_pcm_playback_hw;  in vx_pcm_playback_open()
557 	runtime->hw.period_bytes_min = chip->ibl.size;  in vx_pcm_playback_open()
558 	runtime->private_data = pipe;  in vx_pcm_playback_open()
561 	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 4);  in vx_pcm_playback_open()
562 	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 4);  in vx_pcm_playback_open()
575 	if (! subs->runtime->private_data)  in vx_pcm_playback_close()
578 	pipe = subs->runtime->private_data;  in vx_pcm_playback_close()
625 					  struct snd_pcm_runtime *runtime,  in vx_pcm_playback_transfer_chunk()  argument
647 	vx_pseudo_dma_write(chip, runtime, pipe, size);  in vx_pcm_playback_transfer_chunk()
663 				   struct snd_pcm_runtime *runtime,  in vx_update_pipe_position()  argument
680 	if (pipe->position >= (int)runtime->buffer_size)  in vx_update_pipe_position()
681 		pipe->position %= runtime->buffer_size;  in vx_update_pipe_position()
695 	struct snd_pcm_runtime *runtime = subs->runtime;  in vx_pcm_playback_transfer()  local
700 		if ((err = vx_pcm_playback_transfer_chunk(chip, runtime, pipe,  in vx_pcm_playback_transfer()
715 	struct snd_pcm_runtime *runtime = subs->runtime;  in vx_pcm_playback_update()  local
718 		if ((err = vx_update_pipe_position(chip, runtime, pipe)) < 0)  in vx_pcm_playback_update()
720 		if (pipe->transferred >= (int)runtime->period_size) {  in vx_pcm_playback_update()
721 			pipe->transferred %= runtime->period_size;  in vx_pcm_playback_update()
733 	struct vx_pipe *pipe = subs->runtime->private_data;  in vx_pcm_trigger()
785 	struct snd_pcm_runtime *runtime = subs->runtime;  in vx_pcm_playback_pointer()  local
786 	struct vx_pipe *pipe = runtime->private_data;  in vx_pcm_playback_pointer()
814 	struct snd_pcm_runtime *runtime = subs->runtime;  in vx_pcm_prepare()  local
815 	struct vx_pipe *pipe = runtime->private_data;  in vx_pcm_prepare()
841 	if (chip->pcm_running && chip->freq != runtime->rate) {  in vx_pcm_prepare()
843 			   "from the current %d\n", runtime->rate, chip->freq);  in vx_pcm_prepare()
846 	vx_set_clock(chip, runtime->rate);  in vx_pcm_prepare()
848 	if ((err = vx_set_format(chip, pipe, runtime)) < 0)  in vx_pcm_prepare()
857 	pipe->buffer_bytes = frames_to_bytes(runtime, runtime->buffer_size);  in vx_pcm_prepare()
858 	pipe->period_bytes = frames_to_bytes(runtime, runtime->period_size);  in vx_pcm_prepare()
862 	vx_update_pipe_position(chip, runtime, pipe);  in vx_pcm_prepare()
919 	struct snd_pcm_runtime *runtime = subs->runtime;  in vx_pcm_capture_open()  local
962 	runtime->hw = vx_pcm_capture_hw;  in vx_pcm_capture_open()
963 	runtime->hw.period_bytes_min = chip->ibl.size;  in vx_pcm_capture_open()
964 	runtime->private_data = pipe;  in vx_pcm_capture_open()
967 	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 4);  in vx_pcm_capture_open()
968 	snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 4);  in vx_pcm_capture_open()
982 	if (! subs->runtime->private_data)  in vx_pcm_capture_close()
984 	pipe = subs->runtime->private_data;  in vx_pcm_capture_close()
1016 	struct snd_pcm_runtime *runtime = subs->runtime;  in vx_pcm_capture_update()  local
1021 	size = runtime->buffer_size - snd_pcm_capture_avail(runtime);  in vx_pcm_capture_update()
1024 	size = frames_to_bytes(runtime, size);  in vx_pcm_capture_update()
1044 		vx_pcm_read_per_bytes(chip, runtime, pipe);  in vx_pcm_capture_update()
1051 		vx_pseudo_dma_read(chip, runtime, pipe, space);  in vx_pcm_capture_update()
1058 		vx_pcm_read_per_bytes(chip, runtime, pipe);  in vx_pcm_capture_update()
1066 		vx_pcm_read_per_bytes(chip, runtime, pipe);  in vx_pcm_capture_update()
1088 	struct snd_pcm_runtime *runtime = subs->runtime;  in vx_pcm_capture_pointer()  local
1089 	struct vx_pipe *pipe = runtime->private_data;  in vx_pcm_capture_pointer()
1090 	return bytes_to_frames(runtime, pipe->hw_ptr);  in vx_pcm_capture_pointer()