32 		struct snd_pcm_substream *substream;  in pcsp_call_pcm_elapsed()  local
33 		substream = pcsp_chip.playback_substream;  in pcsp_call_pcm_elapsed()
34 		if (substream)  in pcsp_call_pcm_elapsed()
35 			snd_pcm_period_elapsed(substream);  in pcsp_call_pcm_elapsed()
48 	struct snd_pcm_substream *substream;  in pcsp_timer_update()  local
58 	substream = chip->playback_substream;  in pcsp_timer_update()
59 	if (!substream)  in pcsp_timer_update()
62 	runtime = substream->runtime;  in pcsp_timer_update()
90 	struct snd_pcm_substream *substream;  in pcsp_pointer_update()  local
96 	substream = chip->playback_substream;  in pcsp_pointer_update()
97 	if (!substream)  in pcsp_pointer_update()
100 	period_bytes = snd_pcm_lib_period_bytes(substream);  in pcsp_pointer_update()
101 	buffer_bytes = snd_pcm_lib_buffer_bytes(substream);  in pcsp_pointer_update()
200 static int snd_pcsp_playback_close(struct snd_pcm_substream *substream)  in snd_pcsp_playback_close()  argument
202 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_playback_close()
211 static int snd_pcsp_playback_hw_params(struct snd_pcm_substream *substream,  in snd_pcsp_playback_hw_params()  argument
214 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_playback_hw_params()
219 static int snd_pcsp_playback_hw_free(struct snd_pcm_substream *substream)  in snd_pcsp_playback_hw_free()  argument
221 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_playback_hw_free()
229 static int snd_pcsp_playback_prepare(struct snd_pcm_substream *substream)  in snd_pcsp_playback_prepare()  argument
231 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_playback_prepare()
236 		snd_pcm_format_physical_width(substream->runtime->format) >> 3;  in snd_pcsp_playback_prepare()
237 	chip->is_signed = snd_pcm_format_signed(substream->runtime->format);  in snd_pcsp_playback_prepare()
241 			snd_pcm_lib_buffer_bytes(substream),  in snd_pcsp_playback_prepare()
242 			snd_pcm_lib_period_bytes(substream),  in snd_pcsp_playback_prepare()
243 			snd_pcm_lib_buffer_bytes(substream) /  in snd_pcsp_playback_prepare()
244 			snd_pcm_lib_period_bytes(substream),  in snd_pcsp_playback_prepare()
245 			substream->runtime->periods,  in snd_pcsp_playback_prepare()
251 static int snd_pcsp_trigger(struct snd_pcm_substream *substream, int cmd)  in snd_pcsp_trigger()  argument
253 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_trigger()
272 						   *substream)  in snd_pcsp_playback_pointer()
274 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_playback_pointer()
279 	return bytes_to_frames(substream->runtime, pos);  in snd_pcsp_playback_pointer()
304 static int snd_pcsp_playback_open(struct snd_pcm_substream *substream)  in snd_pcsp_playback_open()  argument
306 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_playback_open()
307 	struct snd_pcm_runtime *runtime = substream->runtime;  in snd_pcsp_playback_open()
316 	chip->playback_substream = substream;  in snd_pcsp_playback_open()