103 static void dsp_buffer_free(struct snd_pcm_substream *substream)  in dsp_buffer_free()  argument
105 	struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);  in dsp_buffer_free()
109 	vfree(substream->runtime->dma_area);  in dsp_buffer_free()
110 	substream->runtime->dma_area = NULL;  in dsp_buffer_free()
111 	substream->runtime->dma_bytes = 0;  in dsp_buffer_free()
114 static int dsp_buffer_alloc(struct snd_pcm_substream *substream, int size)  in dsp_buffer_alloc()  argument
116 	struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);  in dsp_buffer_alloc()
120 	if (substream->runtime->dma_area) {  in dsp_buffer_alloc()
121 		if (substream->runtime->dma_bytes > size)  in dsp_buffer_alloc()
124 		dsp_buffer_free(substream);  in dsp_buffer_alloc()
127 	substream->runtime->dma_area = vmalloc(size);  in dsp_buffer_alloc()
128 	if (!substream->runtime->dma_area)  in dsp_buffer_alloc()
131 	substream->runtime->dma_bytes = size;  in dsp_buffer_alloc()
169 static int snd_tm6000_pcm_open(struct snd_pcm_substream *substream)  in snd_tm6000_pcm_open()  argument
171 	struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);  in snd_tm6000_pcm_open()
172 	struct snd_pcm_runtime *runtime = substream->runtime;  in snd_tm6000_pcm_open()
180 	chip->substream = substream;  in snd_tm6000_pcm_open()
194 static int snd_tm6000_close(struct snd_pcm_substream *substream)  in snd_tm6000_close()  argument
196 	struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);  in snd_tm6000_close()
210 	struct snd_pcm_substream *substream = chip->substream;  in tm6000_fillbuf()  local
219 	if (!size || !substream) {  in tm6000_fillbuf()
224 	runtime = substream->runtime;  in tm6000_fillbuf()
257 	snd_pcm_stream_lock(substream);  in tm6000_fillbuf()
269 	snd_pcm_stream_unlock(substream);  in tm6000_fillbuf()
272 		snd_pcm_period_elapsed(substream);  in tm6000_fillbuf()
280 static int snd_tm6000_hw_params(struct snd_pcm_substream *substream,  in snd_tm6000_hw_params()  argument
287 	rc = dsp_buffer_alloc(substream, size);  in snd_tm6000_hw_params()
297 static int snd_tm6000_hw_free(struct snd_pcm_substream *substream)  in snd_tm6000_hw_free()  argument
299 	struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);  in snd_tm6000_hw_free()
307 	dsp_buffer_free(substream);  in snd_tm6000_hw_free()
314 static int snd_tm6000_prepare(struct snd_pcm_substream *substream)  in snd_tm6000_prepare()  argument
316 	struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);  in snd_tm6000_prepare()
343 static int snd_tm6000_card_trigger(struct snd_pcm_substream *substream, int cmd)  in snd_tm6000_card_trigger()  argument
345 	struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);  in snd_tm6000_card_trigger()
371 static snd_pcm_uframes_t snd_tm6000_pointer(struct snd_pcm_substream *substream)  in snd_tm6000_pointer()  argument
373 	struct snd_tm6000_card *chip = snd_pcm_substream_chip(substream);  in snd_tm6000_pointer()