Lines Matching refs:pcm
28 static struct device *dmaengine_dma_dev(struct dmaengine_pcm *pcm, in dmaengine_dma_dev() argument
31 if (!pcm->chan[substream->stream]) in dmaengine_dma_dev()
34 return pcm->chan[substream->stream]->device->dev; in dmaengine_dma_dev()
80 struct dmaengine_pcm *pcm = soc_component_to_pcm(component); in dmaengine_pcm_hw_params() local
89 if (!pcm->config) in dmaengine_pcm_hw_params()
92 prepare_slave_config = pcm->config->prepare_slave_config; in dmaengine_pcm_hw_params()
112 struct dmaengine_pcm *pcm = soc_component_to_pcm(component); in dmaengine_pcm_set_runtime_hwparams() local
113 struct device *dma_dev = dmaengine_dma_dev(pcm, substream); in dmaengine_pcm_set_runtime_hwparams()
114 struct dma_chan *chan = pcm->chan[substream->stream]; in dmaengine_pcm_set_runtime_hwparams()
124 if (pcm->config && pcm->config->pcm_hardware) in dmaengine_pcm_set_runtime_hwparams()
126 pcm->config->pcm_hardware); in dmaengine_pcm_set_runtime_hwparams()
140 if (pcm->flags & SND_DMAENGINE_PCM_FLAG_NO_RESIDUE) in dmaengine_pcm_set_runtime_hwparams()
159 struct dmaengine_pcm *pcm = soc_component_to_pcm(component); in dmaengine_pcm_open() local
160 struct dma_chan *chan = pcm->chan[substream->stream]; in dmaengine_pcm_open()
187 struct dmaengine_pcm *pcm = soc_component_to_pcm(component); in dmaengine_pcm_compat_request_channel() local
199 if ((pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) && pcm->chan[0]) in dmaengine_pcm_compat_request_channel()
200 return pcm->chan[0]; in dmaengine_pcm_compat_request_channel()
202 if (pcm->config && pcm->config->compat_request_channel) in dmaengine_pcm_compat_request_channel()
203 return pcm->config->compat_request_channel(rtd, substream); in dmaengine_pcm_compat_request_channel()
205 if (pcm->config) in dmaengine_pcm_compat_request_channel()
206 fn = pcm->config->compat_filter_fn; in dmaengine_pcm_compat_request_channel()
233 struct dmaengine_pcm *pcm = soc_component_to_pcm(component); in dmaengine_pcm_new() local
234 const struct snd_dmaengine_pcm_config *config = pcm->config; in dmaengine_pcm_new()
249 struct snd_pcm_substream *substream = rtd->pcm->streams[i].substream; in dmaengine_pcm_new()
253 if (!pcm->chan[i] && config && config->chan_names[i]) in dmaengine_pcm_new()
254 pcm->chan[i] = dma_request_slave_channel(dev, in dmaengine_pcm_new()
257 if (!pcm->chan[i] && (pcm->flags & SND_DMAENGINE_PCM_FLAG_COMPAT)) { in dmaengine_pcm_new()
258 pcm->chan[i] = dmaengine_pcm_compat_request_channel( in dmaengine_pcm_new()
262 if (!pcm->chan[i]) { in dmaengine_pcm_new()
270 dmaengine_dma_dev(pcm, substream), in dmaengine_pcm_new()
274 if (!dmaengine_pcm_can_report_residue(dev, pcm->chan[i])) in dmaengine_pcm_new()
275 pcm->flags |= SND_DMAENGINE_PCM_FLAG_NO_RESIDUE; in dmaengine_pcm_new()
277 if (rtd->pcm->streams[i].pcm->name[0] == '\0') { in dmaengine_pcm_new()
278 strscpy_pad(rtd->pcm->streams[i].pcm->name, in dmaengine_pcm_new()
279 rtd->pcm->streams[i].pcm->id, in dmaengine_pcm_new()
280 sizeof(rtd->pcm->streams[i].pcm->name)); in dmaengine_pcm_new()
291 struct dmaengine_pcm *pcm = soc_component_to_pcm(component); in dmaengine_pcm_pointer() local
293 if (pcm->flags & SND_DMAENGINE_PCM_FLAG_NO_RESIDUE) in dmaengine_pcm_pointer()
305 struct dmaengine_pcm *pcm = soc_component_to_pcm(component); in dmaengine_copy_user() local
308 void *buf, unsigned long bytes) = pcm->config->process; in dmaengine_copy_user()
358 static int dmaengine_pcm_request_chan_of(struct dmaengine_pcm *pcm, in dmaengine_pcm_request_chan_of() argument
365 if ((pcm->flags & SND_DMAENGINE_PCM_FLAG_NO_DT) || (!dev->of_node && in dmaengine_pcm_request_chan_of()
382 if (pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) in dmaengine_pcm_request_chan_of()
397 pcm->chan[i] = NULL; in dmaengine_pcm_request_chan_of()
399 pcm->chan[i] = chan; in dmaengine_pcm_request_chan_of()
401 if (pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) in dmaengine_pcm_request_chan_of()
405 if (pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) in dmaengine_pcm_request_chan_of()
406 pcm->chan[1] = pcm->chan[0]; in dmaengine_pcm_request_chan_of()
411 static void dmaengine_pcm_release_chan(struct dmaengine_pcm *pcm) in dmaengine_pcm_release_chan() argument
416 if (!pcm->chan[i]) in dmaengine_pcm_release_chan()
418 dma_release_channel(pcm->chan[i]); in dmaengine_pcm_release_chan()
419 if (pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) in dmaengine_pcm_release_chan()
434 struct dmaengine_pcm *pcm; in snd_dmaengine_pcm_register() local
437 pcm = kzalloc(sizeof(*pcm), GFP_KERNEL); in snd_dmaengine_pcm_register()
438 if (!pcm) in snd_dmaengine_pcm_register()
442 pcm->component.debugfs_prefix = "dma"; in snd_dmaengine_pcm_register()
444 pcm->config = config; in snd_dmaengine_pcm_register()
445 pcm->flags = flags; in snd_dmaengine_pcm_register()
447 ret = dmaengine_pcm_request_chan_of(pcm, dev, config); in snd_dmaengine_pcm_register()
456 ret = snd_soc_component_initialize(&pcm->component, driver, dev); in snd_dmaengine_pcm_register()
460 ret = snd_soc_add_component(&pcm->component, NULL, 0); in snd_dmaengine_pcm_register()
467 dmaengine_pcm_release_chan(pcm); in snd_dmaengine_pcm_register()
468 kfree(pcm); in snd_dmaengine_pcm_register()
483 struct dmaengine_pcm *pcm; in snd_dmaengine_pcm_unregister() local
489 pcm = soc_component_to_pcm(component); in snd_dmaengine_pcm_unregister()
492 dmaengine_pcm_release_chan(pcm); in snd_dmaengine_pcm_unregister()
493 kfree(pcm); in snd_dmaengine_pcm_unregister()