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()
202 static int snd_pcsp_playback_close(struct snd_pcm_substream *substream)  in snd_pcsp_playback_close()  argument
204 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_playback_close()
213 static int snd_pcsp_playback_hw_params(struct snd_pcm_substream *substream,  in snd_pcsp_playback_hw_params()  argument
216 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_playback_hw_params()
219 	err = snd_pcm_lib_malloc_pages(substream,  in snd_pcsp_playback_hw_params()
226 static int snd_pcsp_playback_hw_free(struct snd_pcm_substream *substream)  in snd_pcsp_playback_hw_free()  argument
228 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_playback_hw_free()
233 	return snd_pcm_lib_free_pages(substream);  in snd_pcsp_playback_hw_free()
236 static int snd_pcsp_playback_prepare(struct snd_pcm_substream *substream)  in snd_pcsp_playback_prepare()  argument
238 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_playback_prepare()
243 		snd_pcm_format_physical_width(substream->runtime->format) >> 3;  in snd_pcsp_playback_prepare()
244 	chip->is_signed = snd_pcm_format_signed(substream->runtime->format);  in snd_pcsp_playback_prepare()
248 			snd_pcm_lib_buffer_bytes(substream),  in snd_pcsp_playback_prepare()
249 			snd_pcm_lib_period_bytes(substream),  in snd_pcsp_playback_prepare()
250 			snd_pcm_lib_buffer_bytes(substream) /  in snd_pcsp_playback_prepare()
251 			snd_pcm_lib_period_bytes(substream),  in snd_pcsp_playback_prepare()
252 			substream->runtime->periods,  in snd_pcsp_playback_prepare()
258 static int snd_pcsp_trigger(struct snd_pcm_substream *substream, int cmd)  in snd_pcsp_trigger()  argument
260 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_trigger()
279 						   *substream)  in snd_pcsp_playback_pointer()
281 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_playback_pointer()
286 	return bytes_to_frames(substream->runtime, pos);  in snd_pcsp_playback_pointer()
311 static int snd_pcsp_playback_open(struct snd_pcm_substream *substream)  in snd_pcsp_playback_open()  argument
313 	struct snd_pcsp *chip = snd_pcm_substream_chip(substream);  in snd_pcsp_playback_open()
314 	struct snd_pcm_runtime *runtime = substream->runtime;  in snd_pcsp_playback_open()
323 	chip->playback_substream = substream;  in snd_pcsp_playback_open()