67 static int bf5xx_pcm_hw_params(struct snd_pcm_substream *substream,  in bf5xx_pcm_hw_params()  argument
71 	snd_pcm_lib_malloc_pages(substream, size);  in bf5xx_pcm_hw_params()
76 static int bf5xx_pcm_hw_free(struct snd_pcm_substream *substream)  in bf5xx_pcm_hw_free()  argument
78 	snd_pcm_lib_free_pages(substream);  in bf5xx_pcm_hw_free()
83 static int bf5xx_pcm_prepare(struct snd_pcm_substream *substream)  in bf5xx_pcm_prepare()  argument
85 	struct snd_pcm_runtime *runtime = substream->runtime;  in bf5xx_pcm_prepare()
90 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {  in bf5xx_pcm_prepare()
91 		sport_set_tx_callback(sport, bf5xx_dma_irq, substream);  in bf5xx_pcm_prepare()
95 		sport_set_rx_callback(sport, bf5xx_dma_irq, substream);  in bf5xx_pcm_prepare()
103 static int bf5xx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)  in bf5xx_pcm_trigger()  argument
105 	struct snd_pcm_runtime *runtime = substream->runtime;  in bf5xx_pcm_trigger()
112 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)  in bf5xx_pcm_trigger()
120 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)  in bf5xx_pcm_trigger()
132 static snd_pcm_uframes_t bf5xx_pcm_pointer(struct snd_pcm_substream *substream)  in bf5xx_pcm_pointer()  argument
134 	struct snd_pcm_runtime *runtime = substream->runtime;  in bf5xx_pcm_pointer()
139 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {  in bf5xx_pcm_pointer()
150 	if (diff == snd_pcm_lib_buffer_bytes(substream))  in bf5xx_pcm_pointer()
153 	frames = bytes_to_frames(substream->runtime, diff);  in bf5xx_pcm_pointer()
158 static int bf5xx_pcm_open(struct snd_pcm_substream *substream)  in bf5xx_pcm_open()  argument
160 	struct snd_soc_pcm_runtime *rtd = substream->private_data;  in bf5xx_pcm_open()
163 	struct snd_pcm_runtime *runtime = substream->runtime;  in bf5xx_pcm_open()
164 	struct snd_dma_buffer *buf = &substream->dma_buffer;  in bf5xx_pcm_open()
169 	snd_soc_set_runtime_hwparams(substream, &bf5xx_pcm_hardware);  in bf5xx_pcm_open()
177 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)  in bf5xx_pcm_open()
193 static int bf5xx_pcm_mmap(struct snd_pcm_substream *substream,  in bf5xx_pcm_mmap()  argument
196 	struct snd_pcm_runtime *runtime = substream->runtime;  in bf5xx_pcm_mmap()
218 	struct snd_pcm_substream *substream = pcm->streams[stream].substream;  in bf5xx_pcm_preallocate_dma_buffer()  local
219 	struct snd_dma_buffer *buf = &substream->dma_buffer;  in bf5xx_pcm_preallocate_dma_buffer()
241 	struct snd_pcm_substream *substream;  in bf5xx_pcm_free_dma_buffers()  local
246 		substream = pcm->streams[stream].substream;  in bf5xx_pcm_free_dma_buffers()
247 		if (!substream)  in bf5xx_pcm_free_dma_buffers()
250 		buf = &substream->dma_buffer;  in bf5xx_pcm_free_dma_buffers()
272 	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {  in bf5xx_pcm_i2s_new()
279 	if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {  in bf5xx_pcm_i2s_new()