Lines Matching +full:chan +full:- +full:name
1 // SPDX-License-Identifier: GPL-2.0+
4 // Author: Lars-Peter Clausen <lars@metafoo.de>
13 #include <linux/dma-mapping.h>
27 if (!pcm->chan[substream->stream]) in dmaengine_dma_dev()
30 return pcm->chan[substream->stream]->device->dev; in dmaengine_dma_dev()
34 * snd_dmaengine_pcm_prepare_slave_config() - Generic prepare_slave_config callback
53 if (rtd->num_cpus > 1) { in snd_dmaengine_pcm_prepare_slave_config()
54 dev_err(rtd->dev, in snd_dmaengine_pcm_prepare_slave_config()
56 return -EINVAL; in snd_dmaengine_pcm_prepare_slave_config()
77 struct dma_chan *chan = snd_dmaengine_pcm_get_chan(substream); in dmaengine_pcm_hw_params() local
86 if (!pcm->config) in dmaengine_pcm_hw_params()
89 prepare_slave_config = pcm->config->prepare_slave_config; in dmaengine_pcm_hw_params()
96 ret = dmaengine_slave_config(chan, &slave_config); in dmaengine_pcm_hw_params()
111 struct dma_chan *chan = pcm->chan[substream->stream]; in dmaengine_pcm_set_runtime_hwparams() local
115 if (rtd->num_cpus > 1) { in dmaengine_pcm_set_runtime_hwparams()
116 dev_err(rtd->dev, in dmaengine_pcm_set_runtime_hwparams()
118 return -EINVAL; in dmaengine_pcm_set_runtime_hwparams()
121 if (pcm->config && pcm->config->pcm_hardware) in dmaengine_pcm_set_runtime_hwparams()
123 pcm->config->pcm_hardware); in dmaengine_pcm_set_runtime_hwparams()
135 hw.fifo_size = dma_data->fifo_size; in dmaengine_pcm_set_runtime_hwparams()
137 if (pcm->flags & SND_DMAENGINE_PCM_FLAG_NO_RESIDUE) in dmaengine_pcm_set_runtime_hwparams()
148 chan); in dmaengine_pcm_set_runtime_hwparams()
157 struct dma_chan *chan = pcm->chan[substream->stream]; in dmaengine_pcm_open() local
164 return snd_dmaengine_pcm_open(substream, chan); in dmaengine_pcm_open()
188 if (rtd->num_cpus > 1) { in dmaengine_pcm_compat_request_channel()
189 dev_err(rtd->dev, in dmaengine_pcm_compat_request_channel()
196 if ((pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) && pcm->chan[0]) in dmaengine_pcm_compat_request_channel()
197 return pcm->chan[0]; in dmaengine_pcm_compat_request_channel()
199 if (pcm->config && pcm->config->compat_request_channel) in dmaengine_pcm_compat_request_channel()
200 return pcm->config->compat_request_channel(rtd, substream); in dmaengine_pcm_compat_request_channel()
202 if (pcm->config) in dmaengine_pcm_compat_request_channel()
203 fn = pcm->config->compat_filter_fn; in dmaengine_pcm_compat_request_channel()
205 return snd_dmaengine_pcm_request_channel(fn, dma_data->filter_data); in dmaengine_pcm_compat_request_channel()
209 struct dma_chan *chan) in dmaengine_pcm_can_report_residue() argument
214 ret = dma_get_slave_caps(chan, &dma_caps); in dmaengine_pcm_can_report_residue()
231 const struct snd_dmaengine_pcm_config *config = pcm->config; in dmaengine_pcm_new()
232 struct device *dev = component->dev; in dmaengine_pcm_new()
238 if (config && config->prealloc_buffer_size) { in dmaengine_pcm_new()
239 prealloc_buffer_size = config->prealloc_buffer_size; in dmaengine_pcm_new()
240 max_buffer_size = config->pcm_hardware->buffer_bytes_max; in dmaengine_pcm_new()
247 substream = rtd->pcm->streams[i].substream; in dmaengine_pcm_new()
251 if (!pcm->chan[i] && config && config->chan_names[i]) in dmaengine_pcm_new()
252 pcm->chan[i] = dma_request_slave_channel(dev, in dmaengine_pcm_new()
253 config->chan_names[i]); in dmaengine_pcm_new()
255 if (!pcm->chan[i] && (pcm->flags & SND_DMAENGINE_PCM_FLAG_COMPAT)) { in dmaengine_pcm_new()
256 pcm->chan[i] = dmaengine_pcm_compat_request_channel( in dmaengine_pcm_new()
260 if (!pcm->chan[i]) { in dmaengine_pcm_new()
261 dev_err(component->dev, in dmaengine_pcm_new()
263 return -EINVAL; in dmaengine_pcm_new()
272 if (!dmaengine_pcm_can_report_residue(dev, pcm->chan[i])) in dmaengine_pcm_new()
273 pcm->flags |= SND_DMAENGINE_PCM_FLAG_NO_RESIDUE; in dmaengine_pcm_new()
275 if (rtd->pcm->streams[i].pcm->name[0] == '\0') { in dmaengine_pcm_new()
276 strscpy_pad(rtd->pcm->streams[i].pcm->name, in dmaengine_pcm_new()
277 rtd->pcm->streams[i].pcm->id, in dmaengine_pcm_new()
278 sizeof(rtd->pcm->streams[i].pcm->name)); in dmaengine_pcm_new()
291 if (pcm->flags & SND_DMAENGINE_PCM_FLAG_NO_RESIDUE) in dmaengine_pcm_pointer()
302 struct snd_pcm_runtime *runtime = substream->runtime; in dmaengine_copy_user()
306 void *buf, unsigned long bytes) = pcm->config->process; in dmaengine_copy_user()
307 bool is_playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; in dmaengine_copy_user()
308 void *dma_ptr = runtime->dma_area + hwoff + in dmaengine_copy_user()
309 channel * (runtime->dma_bytes / runtime->channels); in dmaengine_copy_user()
314 return -EFAULT; in dmaengine_copy_user()
324 return -EFAULT; in dmaengine_copy_user()
330 .name = SND_DMAENGINE_PCM_DRV_NAME,
341 .name = SND_DMAENGINE_PCM_DRV_NAME,
361 const char *name; in dmaengine_pcm_request_chan_of() local
362 struct dma_chan *chan; in dmaengine_pcm_request_chan_of() local
364 if ((pcm->flags & SND_DMAENGINE_PCM_FLAG_NO_DT) || (!dev->of_node && in dmaengine_pcm_request_chan_of()
365 !(config && config->dma_dev && config->dma_dev->of_node))) in dmaengine_pcm_request_chan_of()
368 if (config && config->dma_dev) { in dmaengine_pcm_request_chan_of()
376 dev_name(config->dma_dev)); in dmaengine_pcm_request_chan_of()
377 dev = config->dma_dev; in dmaengine_pcm_request_chan_of()
381 if (pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) in dmaengine_pcm_request_chan_of()
382 name = "rx-tx"; in dmaengine_pcm_request_chan_of()
384 name = dmaengine_pcm_dma_channel_names[i]; in dmaengine_pcm_request_chan_of()
385 if (config && config->chan_names[i]) in dmaengine_pcm_request_chan_of()
386 name = config->chan_names[i]; in dmaengine_pcm_request_chan_of()
387 chan = dma_request_chan(dev, name); in dmaengine_pcm_request_chan_of()
388 if (IS_ERR(chan)) { in dmaengine_pcm_request_chan_of()
394 if (PTR_ERR(chan) == -EPROBE_DEFER) in dmaengine_pcm_request_chan_of()
395 return -EPROBE_DEFER; in dmaengine_pcm_request_chan_of()
396 pcm->chan[i] = NULL; in dmaengine_pcm_request_chan_of()
398 pcm->chan[i] = chan; in dmaengine_pcm_request_chan_of()
400 if (pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) in dmaengine_pcm_request_chan_of()
404 if (pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) in dmaengine_pcm_request_chan_of()
405 pcm->chan[1] = pcm->chan[0]; in dmaengine_pcm_request_chan_of()
415 if (!pcm->chan[i]) in dmaengine_pcm_release_chan()
417 dma_release_channel(pcm->chan[i]); in dmaengine_pcm_release_chan()
418 if (pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) in dmaengine_pcm_release_chan()
424 * snd_dmaengine_pcm_register - Register a dmaengine based PCM device
438 return -ENOMEM; in snd_dmaengine_pcm_register()
441 pcm->component.debugfs_prefix = "dma"; in snd_dmaengine_pcm_register()
443 pcm->config = config; in snd_dmaengine_pcm_register()
444 pcm->flags = flags; in snd_dmaengine_pcm_register()
450 if (config && config->process) in snd_dmaengine_pcm_register()
455 ret = snd_soc_component_initialize(&pcm->component, driver, dev); in snd_dmaengine_pcm_register()
459 ret = snd_soc_add_component(&pcm->component, NULL, 0); in snd_dmaengine_pcm_register()
473 * snd_dmaengine_pcm_unregister - Removes a dmaengine based PCM device
490 snd_soc_unregister_component_by_driver(dev, component->driver); in snd_dmaengine_pcm_unregister()