47 	struct snd_pcm_substream *substream;  member
76 	struct snd_pcm_runtime *runtime = gosnd->substream->runtime;  in parse_audio_stream_data()
103 		snd_pcm_period_elapsed(gosnd->substream);  in parse_audio_stream_data()
106 static int go7007_snd_hw_params(struct snd_pcm_substream *substream,  in go7007_snd_hw_params()  argument
109 	struct go7007 *go = snd_pcm_substream_chip(substream);  in go7007_snd_hw_params()
113 	if (substream->runtime->dma_bytes > 0)  in go7007_snd_hw_params()
114 		vfree(substream->runtime->dma_area);  in go7007_snd_hw_params()
115 	substream->runtime->dma_bytes = 0;  in go7007_snd_hw_params()
116 	substream->runtime->dma_area = vmalloc(bytes);  in go7007_snd_hw_params()
117 	if (substream->runtime->dma_area == NULL)  in go7007_snd_hw_params()
119 	substream->runtime->dma_bytes = bytes;  in go7007_snd_hw_params()
124 static int go7007_snd_hw_free(struct snd_pcm_substream *substream)  in go7007_snd_hw_free()  argument
126 	struct go7007 *go = snd_pcm_substream_chip(substream);  in go7007_snd_hw_free()
129 	if (substream->runtime->dma_bytes > 0)  in go7007_snd_hw_free()
130 		vfree(substream->runtime->dma_area);  in go7007_snd_hw_free()
131 	substream->runtime->dma_bytes = 0;  in go7007_snd_hw_free()
135 static int go7007_snd_capture_open(struct snd_pcm_substream *substream)  in go7007_snd_capture_open()  argument
137 	struct go7007 *go = snd_pcm_substream_chip(substream);  in go7007_snd_capture_open()
143 	if (gosnd->substream == NULL) {  in go7007_snd_capture_open()
144 		gosnd->substream = substream;  in go7007_snd_capture_open()
145 		substream->runtime->hw = go7007_snd_capture_hw;  in go7007_snd_capture_open()
153 static int go7007_snd_capture_close(struct snd_pcm_substream *substream)  in go7007_snd_capture_close()  argument
155 	struct go7007 *go = snd_pcm_substream_chip(substream);  in go7007_snd_capture_close()
158 	gosnd->substream = NULL;  in go7007_snd_capture_close()
162 static int go7007_snd_pcm_prepare(struct snd_pcm_substream *substream)  in go7007_snd_pcm_prepare()  argument
167 static int go7007_snd_pcm_trigger(struct snd_pcm_substream *substream, int cmd)  in go7007_snd_pcm_trigger()  argument
169 	struct go7007 *go = snd_pcm_substream_chip(substream);  in go7007_snd_pcm_trigger()
187 static snd_pcm_uframes_t go7007_snd_pcm_pointer(struct snd_pcm_substream *substream)  in go7007_snd_pcm_pointer()  argument
189 	struct go7007 *go = snd_pcm_substream_chip(substream);  in go7007_snd_pcm_pointer()
195 static struct page *go7007_snd_pcm_page(struct snd_pcm_substream *substream,  in go7007_snd_pcm_page()  argument
198 	return vmalloc_to_page(substream->runtime->dma_area + offset);  in go7007_snd_pcm_page()
278 	gosnd->substream = NULL;  in go7007_snd_init()