105 static void dsp_buffer_free(struct snd_pcm_substream *substream)  in dsp_buffer_free()  argument
107 	struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);  in dsp_buffer_free()
111 	vfree(substream->runtime->dma_area);  in dsp_buffer_free()
112 	substream->runtime->dma_area = NULL;  in dsp_buffer_free()
113 	substream->runtime->dma_bytes = 0;  in dsp_buffer_free()
116 static int dsp_buffer_alloc(struct snd_pcm_substream *substream, int size)  in dsp_buffer_alloc()  argument
118 	struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);  in dsp_buffer_alloc()
122 	if (substream->runtime->dma_area) {  in dsp_buffer_alloc()
123 		if (substream->runtime->dma_bytes > size)  in dsp_buffer_alloc()
126 		dsp_buffer_free(substream);  in dsp_buffer_alloc()
129 	substream->runtime->dma_area = vmalloc(size);  in dsp_buffer_alloc()
130 	if (!substream->runtime->dma_area)  in dsp_buffer_alloc()
133 	substream->runtime->dma_bytes = size;  in dsp_buffer_alloc()
171 static int snd_tm6000_pcm_open(struct snd_pcm_substream *substream)  in snd_tm6000_pcm_open()  argument
173 	struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);  in snd_tm6000_pcm_open()
174 	struct snd_pcm_runtime *runtime = substream->runtime;  in snd_tm6000_pcm_open()
182 	chip->substream = substream;  in snd_tm6000_pcm_open()
196 static int snd_tm6000_close(struct snd_pcm_substream *substream)  in snd_tm6000_close()  argument
198 	struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);  in snd_tm6000_close()
212 	struct snd_pcm_substream *substream = chip->substream;  in tm6000_fillbuf()  local
221 	if (!size || !substream) {  in tm6000_fillbuf()
226 	runtime = substream->runtime;  in tm6000_fillbuf()
259 	snd_pcm_stream_lock(substream);  in tm6000_fillbuf()
271 	snd_pcm_stream_unlock(substream);  in tm6000_fillbuf()
274 		snd_pcm_period_elapsed(substream);  in tm6000_fillbuf()
282 static int snd_tm6000_hw_params(struct snd_pcm_substream *substream,  in snd_tm6000_hw_params()  argument
289 	rc = dsp_buffer_alloc(substream, size);  in snd_tm6000_hw_params()
299 static int snd_tm6000_hw_free(struct snd_pcm_substream *substream)  in snd_tm6000_hw_free()  argument
301 	struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);  in snd_tm6000_hw_free()
309 	dsp_buffer_free(substream);  in snd_tm6000_hw_free()
316 static int snd_tm6000_prepare(struct snd_pcm_substream *substream)  in snd_tm6000_prepare()  argument
318 	struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);  in snd_tm6000_prepare()
345 static int snd_tm6000_card_trigger(struct snd_pcm_substream *substream, int cmd)  in snd_tm6000_card_trigger()  argument
347 	struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);  in snd_tm6000_card_trigger()
373 static snd_pcm_uframes_t snd_tm6000_pointer(struct snd_pcm_substream *substream)  in snd_tm6000_pointer()  argument
375 	struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);  in snd_tm6000_pointer()