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![Kuninori Morimoto](/assets/img/avatar_default.png)
ASoC need to use card->mutex with _INIT or _RUNTIME, but there is no helper function for it. This patch adds its helper function and use it. Because people might misunderstand that _init() is mutex initialization, this patch renames _INIT to _ROOT and adds new snd_soc_card_mutex_lock_root() for it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://lore.kernel.org/r/87a5zlx3tw.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown <broonie@kernel.org>
665 lines
17 KiB
C
665 lines
17 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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//
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// soc-compress.c -- ALSA SoC Compress
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//
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// Copyright (C) 2012 Intel Corp.
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//
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// Authors: Namarta Kohli <namartax.kohli@intel.com>
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// Ramesh Babu K V <ramesh.babu@linux.intel.com>
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// Vinod Koul <vinod.koul@linux.intel.com>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/slab.h>
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#include <linux/workqueue.h>
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#include <sound/core.h>
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#include <sound/compress_params.h>
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#include <sound/compress_driver.h>
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#include <sound/soc.h>
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#include <sound/initval.h>
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#include <sound/soc-dpcm.h>
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#include <sound/soc-link.h>
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#include <linux/pm_runtime.h>
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static int snd_soc_compr_components_open(struct snd_compr_stream *cstream)
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{
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struct snd_soc_pcm_runtime *rtd = cstream->private_data;
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struct snd_soc_component *component;
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int ret = 0;
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int i;
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for_each_rtd_components(rtd, i, component) {
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ret = snd_soc_component_module_get_when_open(component, cstream);
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if (ret < 0)
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break;
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ret = snd_soc_component_compr_open(component, cstream);
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if (ret < 0)
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break;
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}
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return ret;
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}
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static void snd_soc_compr_components_free(struct snd_compr_stream *cstream,
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int rollback)
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{
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struct snd_soc_pcm_runtime *rtd = cstream->private_data;
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struct snd_soc_component *component;
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int i;
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for_each_rtd_components(rtd, i, component) {
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snd_soc_component_compr_free(component, cstream, rollback);
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snd_soc_component_module_put_when_close(component, cstream, rollback);
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}
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}
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static int soc_compr_clean(struct snd_compr_stream *cstream, int rollback)
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{
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struct snd_soc_pcm_runtime *rtd = cstream->private_data;
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
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int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */
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snd_soc_dpcm_mutex_lock(rtd);
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if (!rollback)
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snd_soc_runtime_deactivate(rtd, stream);
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snd_soc_dai_digital_mute(codec_dai, 1, stream);
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if (!snd_soc_dai_active(cpu_dai))
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cpu_dai->rate = 0;
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if (!snd_soc_dai_active(codec_dai))
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codec_dai->rate = 0;
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snd_soc_link_compr_shutdown(cstream, rollback);
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snd_soc_compr_components_free(cstream, rollback);
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snd_soc_dai_compr_shutdown(cpu_dai, cstream, rollback);
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if (!rollback)
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snd_soc_dapm_stream_stop(rtd, stream);
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snd_soc_dpcm_mutex_unlock(rtd);
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snd_soc_pcm_component_pm_runtime_put(rtd, cstream, rollback);
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return 0;
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}
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static int soc_compr_free(struct snd_compr_stream *cstream)
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{
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return soc_compr_clean(cstream, 0);
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}
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static int soc_compr_open(struct snd_compr_stream *cstream)
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{
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struct snd_soc_pcm_runtime *rtd = cstream->private_data;
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
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int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */
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int ret;
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ret = snd_soc_pcm_component_pm_runtime_get(rtd, cstream);
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if (ret < 0)
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goto err_no_lock;
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snd_soc_dpcm_mutex_lock(rtd);
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ret = snd_soc_dai_compr_startup(cpu_dai, cstream);
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if (ret < 0)
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goto err;
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ret = snd_soc_compr_components_open(cstream);
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if (ret < 0)
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goto err;
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ret = snd_soc_link_compr_startup(cstream);
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if (ret < 0)
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goto err;
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snd_soc_runtime_activate(rtd, stream);
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err:
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snd_soc_dpcm_mutex_unlock(rtd);
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err_no_lock:
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if (ret < 0)
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soc_compr_clean(cstream, 1);
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return ret;
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}
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static int soc_compr_open_fe(struct snd_compr_stream *cstream)
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{
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struct snd_soc_pcm_runtime *fe = cstream->private_data;
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(fe, 0);
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struct snd_soc_dpcm *dpcm;
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struct snd_soc_dapm_widget_list *list;
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int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */
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int ret;
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snd_soc_card_mutex_lock(fe->card);
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ret = dpcm_path_get(fe, stream, &list);
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if (ret < 0)
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goto be_err;
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snd_soc_dpcm_mutex_lock(fe);
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/* calculate valid and active FE <-> BE dpcms */
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dpcm_process_paths(fe, stream, &list, 1);
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fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
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ret = dpcm_be_dai_startup(fe, stream);
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if (ret < 0) {
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/* clean up all links */
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for_each_dpcm_be(fe, stream, dpcm)
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dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;
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dpcm_be_disconnect(fe, stream);
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goto out;
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}
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ret = snd_soc_dai_compr_startup(cpu_dai, cstream);
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if (ret < 0)
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goto out;
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ret = snd_soc_compr_components_open(cstream);
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if (ret < 0)
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goto open_err;
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ret = snd_soc_link_compr_startup(cstream);
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if (ret < 0)
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goto machine_err;
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dpcm_clear_pending_state(fe, stream);
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dpcm_path_put(&list);
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fe->dpcm[stream].state = SND_SOC_DPCM_STATE_OPEN;
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fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
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snd_soc_runtime_activate(fe, stream);
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snd_soc_dpcm_mutex_unlock(fe);
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snd_soc_card_mutex_unlock(fe->card);
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return 0;
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machine_err:
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snd_soc_compr_components_free(cstream, 1);
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open_err:
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snd_soc_dai_compr_shutdown(cpu_dai, cstream, 1);
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out:
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dpcm_path_put(&list);
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be_err:
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fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
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snd_soc_card_mutex_unlock(fe->card);
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return ret;
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}
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static int soc_compr_free_fe(struct snd_compr_stream *cstream)
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{
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struct snd_soc_pcm_runtime *fe = cstream->private_data;
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(fe, 0);
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struct snd_soc_dpcm *dpcm;
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int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */
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snd_soc_card_mutex_lock(fe->card);
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snd_soc_dpcm_mutex_lock(fe);
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snd_soc_runtime_deactivate(fe, stream);
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fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
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dpcm_be_dai_hw_free(fe, stream);
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dpcm_be_dai_shutdown(fe, stream);
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/* mark FE's links ready to prune */
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for_each_dpcm_be(fe, stream, dpcm)
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dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;
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dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_STOP);
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fe->dpcm[stream].state = SND_SOC_DPCM_STATE_CLOSE;
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fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
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dpcm_be_disconnect(fe, stream);
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snd_soc_dpcm_mutex_unlock(fe);
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snd_soc_link_compr_shutdown(cstream, 0);
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snd_soc_compr_components_free(cstream, 0);
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snd_soc_dai_compr_shutdown(cpu_dai, cstream, 0);
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snd_soc_card_mutex_unlock(fe->card);
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return 0;
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}
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static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd)
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{
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struct snd_soc_pcm_runtime *rtd = cstream->private_data;
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
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int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */
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int ret;
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snd_soc_dpcm_mutex_lock(rtd);
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ret = snd_soc_component_compr_trigger(cstream, cmd);
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if (ret < 0)
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goto out;
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ret = snd_soc_dai_compr_trigger(cpu_dai, cstream, cmd);
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if (ret < 0)
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goto out;
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switch (cmd) {
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case SNDRV_PCM_TRIGGER_START:
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snd_soc_dai_digital_mute(codec_dai, 0, stream);
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break;
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case SNDRV_PCM_TRIGGER_STOP:
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snd_soc_dai_digital_mute(codec_dai, 1, stream);
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break;
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}
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out:
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snd_soc_dpcm_mutex_unlock(rtd);
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return ret;
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}
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static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd)
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{
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struct snd_soc_pcm_runtime *fe = cstream->private_data;
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(fe, 0);
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int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */
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int ret;
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if (cmd == SND_COMPR_TRIGGER_PARTIAL_DRAIN ||
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cmd == SND_COMPR_TRIGGER_DRAIN)
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return snd_soc_component_compr_trigger(cstream, cmd);
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snd_soc_card_mutex_lock(fe->card);
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ret = snd_soc_dai_compr_trigger(cpu_dai, cstream, cmd);
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if (ret < 0)
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goto out;
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ret = snd_soc_component_compr_trigger(cstream, cmd);
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if (ret < 0)
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goto out;
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fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
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ret = dpcm_be_dai_trigger(fe, stream, cmd);
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switch (cmd) {
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case SNDRV_PCM_TRIGGER_START:
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case SNDRV_PCM_TRIGGER_RESUME:
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case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
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fe->dpcm[stream].state = SND_SOC_DPCM_STATE_START;
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break;
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case SNDRV_PCM_TRIGGER_STOP:
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case SNDRV_PCM_TRIGGER_SUSPEND:
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fe->dpcm[stream].state = SND_SOC_DPCM_STATE_STOP;
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break;
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case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
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fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PAUSED;
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break;
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}
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out:
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fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
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snd_soc_card_mutex_unlock(fe->card);
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return ret;
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}
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static int soc_compr_set_params(struct snd_compr_stream *cstream,
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struct snd_compr_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = cstream->private_data;
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
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int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */
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int ret;
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snd_soc_dpcm_mutex_lock(rtd);
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/*
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* First we call set_params for the CPU DAI, then the component
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* driver this should configure the SoC side. If the machine has
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* compressed ops then we call that as well. The expectation is
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* that these callbacks will configure everything for this compress
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* path, like configuring a PCM port for a CODEC.
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*/
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ret = snd_soc_dai_compr_set_params(cpu_dai, cstream, params);
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if (ret < 0)
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goto err;
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ret = snd_soc_component_compr_set_params(cstream, params);
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if (ret < 0)
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goto err;
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ret = snd_soc_link_compr_set_params(cstream);
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if (ret < 0)
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goto err;
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snd_soc_dapm_stream_event(rtd, stream, SND_SOC_DAPM_STREAM_START);
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/* cancel any delayed stream shutdown that is pending */
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rtd->pop_wait = 0;
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snd_soc_dpcm_mutex_unlock(rtd);
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cancel_delayed_work_sync(&rtd->delayed_work);
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return 0;
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err:
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snd_soc_dpcm_mutex_unlock(rtd);
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return ret;
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}
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static int soc_compr_set_params_fe(struct snd_compr_stream *cstream,
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struct snd_compr_params *params)
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{
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struct snd_soc_pcm_runtime *fe = cstream->private_data;
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struct snd_pcm_substream *fe_substream =
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fe->pcm->streams[cstream->direction].substream;
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(fe, 0);
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int stream = cstream->direction; /* SND_COMPRESS_xxx is same as SNDRV_PCM_STREAM_xxx */
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int ret;
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snd_soc_card_mutex_lock(fe->card);
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/*
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* Create an empty hw_params for the BE as the machine driver must
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* fix this up to match DSP decoder and ASRC configuration.
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* I.e. machine driver fixup for compressed BE is mandatory.
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*/
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memset(&fe->dpcm[fe_substream->stream].hw_params, 0,
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sizeof(struct snd_pcm_hw_params));
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fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
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ret = dpcm_be_dai_hw_params(fe, stream);
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if (ret < 0)
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goto out;
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ret = dpcm_be_dai_prepare(fe, stream);
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if (ret < 0)
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goto out;
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ret = snd_soc_dai_compr_set_params(cpu_dai, cstream, params);
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if (ret < 0)
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goto out;
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ret = snd_soc_component_compr_set_params(cstream, params);
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if (ret < 0)
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goto out;
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ret = snd_soc_link_compr_set_params(cstream);
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if (ret < 0)
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goto out;
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snd_soc_dpcm_mutex_lock(fe);
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dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START);
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snd_soc_dpcm_mutex_unlock(fe);
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fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE;
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out:
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fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
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snd_soc_card_mutex_unlock(fe->card);
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return ret;
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}
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static int soc_compr_get_params(struct snd_compr_stream *cstream,
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struct snd_codec *params)
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{
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struct snd_soc_pcm_runtime *rtd = cstream->private_data;
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
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int ret = 0;
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snd_soc_dpcm_mutex_lock(rtd);
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ret = snd_soc_dai_compr_get_params(cpu_dai, cstream, params);
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if (ret < 0)
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goto err;
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ret = snd_soc_component_compr_get_params(cstream, params);
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err:
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snd_soc_dpcm_mutex_unlock(rtd);
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return ret;
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}
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static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes)
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{
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struct snd_soc_pcm_runtime *rtd = cstream->private_data;
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
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int ret;
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snd_soc_dpcm_mutex_lock(rtd);
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ret = snd_soc_dai_compr_ack(cpu_dai, cstream, bytes);
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if (ret < 0)
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goto err;
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ret = snd_soc_component_compr_ack(cstream, bytes);
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err:
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snd_soc_dpcm_mutex_unlock(rtd);
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return ret;
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}
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static int soc_compr_pointer(struct snd_compr_stream *cstream,
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struct snd_compr_tstamp *tstamp)
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{
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struct snd_soc_pcm_runtime *rtd = cstream->private_data;
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int ret;
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struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
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snd_soc_dpcm_mutex_lock(rtd);
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ret = snd_soc_dai_compr_pointer(cpu_dai, cstream, tstamp);
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if (ret < 0)
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goto out;
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ret = snd_soc_component_compr_pointer(cstream, tstamp);
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out:
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snd_soc_dpcm_mutex_unlock(rtd);
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return ret;
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}
|
|
|
|
static int soc_compr_set_metadata(struct snd_compr_stream *cstream,
|
|
struct snd_compr_metadata *metadata)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = cstream->private_data;
|
|
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
|
|
int ret;
|
|
|
|
ret = snd_soc_dai_compr_set_metadata(cpu_dai, cstream, metadata);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return snd_soc_component_compr_set_metadata(cstream, metadata);
|
|
}
|
|
|
|
static int soc_compr_get_metadata(struct snd_compr_stream *cstream,
|
|
struct snd_compr_metadata *metadata)
|
|
{
|
|
struct snd_soc_pcm_runtime *rtd = cstream->private_data;
|
|
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
|
|
int ret;
|
|
|
|
ret = snd_soc_dai_compr_get_metadata(cpu_dai, cstream, metadata);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return snd_soc_component_compr_get_metadata(cstream, metadata);
|
|
}
|
|
|
|
/* ASoC Compress operations */
|
|
static struct snd_compr_ops soc_compr_ops = {
|
|
.open = soc_compr_open,
|
|
.free = soc_compr_free,
|
|
.set_params = soc_compr_set_params,
|
|
.set_metadata = soc_compr_set_metadata,
|
|
.get_metadata = soc_compr_get_metadata,
|
|
.get_params = soc_compr_get_params,
|
|
.trigger = soc_compr_trigger,
|
|
.pointer = soc_compr_pointer,
|
|
.ack = soc_compr_ack,
|
|
.get_caps = snd_soc_component_compr_get_caps,
|
|
.get_codec_caps = snd_soc_component_compr_get_codec_caps,
|
|
};
|
|
|
|
/* ASoC Dynamic Compress operations */
|
|
static struct snd_compr_ops soc_compr_dyn_ops = {
|
|
.open = soc_compr_open_fe,
|
|
.free = soc_compr_free_fe,
|
|
.set_params = soc_compr_set_params_fe,
|
|
.get_params = soc_compr_get_params,
|
|
.set_metadata = soc_compr_set_metadata,
|
|
.get_metadata = soc_compr_get_metadata,
|
|
.trigger = soc_compr_trigger_fe,
|
|
.pointer = soc_compr_pointer,
|
|
.ack = soc_compr_ack,
|
|
.get_caps = snd_soc_component_compr_get_caps,
|
|
.get_codec_caps = snd_soc_component_compr_get_codec_caps,
|
|
};
|
|
|
|
/**
|
|
* snd_soc_new_compress - create a new compress.
|
|
*
|
|
* @rtd: The runtime for which we will create compress
|
|
* @num: the device index number (zero based - shared with normal PCMs)
|
|
*
|
|
* Return: 0 for success, else error.
|
|
*/
|
|
int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num)
|
|
{
|
|
struct snd_soc_component *component;
|
|
struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
|
|
struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
|
|
struct snd_compr *compr;
|
|
struct snd_pcm *be_pcm;
|
|
char new_name[64];
|
|
int ret = 0, direction = 0;
|
|
int playback = 0, capture = 0;
|
|
int i;
|
|
|
|
/*
|
|
* make sure these are same value,
|
|
* and then use these as equally
|
|
*/
|
|
BUILD_BUG_ON((int)SNDRV_PCM_STREAM_PLAYBACK != (int)SND_COMPRESS_PLAYBACK);
|
|
BUILD_BUG_ON((int)SNDRV_PCM_STREAM_CAPTURE != (int)SND_COMPRESS_CAPTURE);
|
|
|
|
if (rtd->dai_link->num_cpus > 1 ||
|
|
rtd->dai_link->num_codecs > 1) {
|
|
dev_err(rtd->card->dev,
|
|
"Compress ASoC: Multi CPU/Codec not supported\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!codec_dai) {
|
|
dev_err(rtd->card->dev, "Missing codec\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* check client and interface hw capabilities */
|
|
if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_PLAYBACK) &&
|
|
snd_soc_dai_stream_valid(cpu_dai, SNDRV_PCM_STREAM_PLAYBACK))
|
|
playback = 1;
|
|
if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_CAPTURE) &&
|
|
snd_soc_dai_stream_valid(cpu_dai, SNDRV_PCM_STREAM_CAPTURE))
|
|
capture = 1;
|
|
|
|
/*
|
|
* Compress devices are unidirectional so only one of the directions
|
|
* should be set, check for that (xor)
|
|
*/
|
|
if (playback + capture != 1) {
|
|
dev_err(rtd->card->dev,
|
|
"Compress ASoC: Invalid direction for P %d, C %d\n",
|
|
playback, capture);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (playback)
|
|
direction = SND_COMPRESS_PLAYBACK;
|
|
else
|
|
direction = SND_COMPRESS_CAPTURE;
|
|
|
|
compr = devm_kzalloc(rtd->card->dev, sizeof(*compr), GFP_KERNEL);
|
|
if (!compr)
|
|
return -ENOMEM;
|
|
|
|
compr->ops = devm_kzalloc(rtd->card->dev, sizeof(soc_compr_ops),
|
|
GFP_KERNEL);
|
|
if (!compr->ops)
|
|
return -ENOMEM;
|
|
|
|
if (rtd->dai_link->dynamic) {
|
|
snprintf(new_name, sizeof(new_name), "(%s)",
|
|
rtd->dai_link->stream_name);
|
|
|
|
ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num,
|
|
rtd->dai_link->dpcm_playback,
|
|
rtd->dai_link->dpcm_capture, &be_pcm);
|
|
if (ret < 0) {
|
|
dev_err(rtd->card->dev,
|
|
"Compress ASoC: can't create compressed for %s: %d\n",
|
|
rtd->dai_link->name, ret);
|
|
return ret;
|
|
}
|
|
|
|
/* inherit atomicity from DAI link */
|
|
be_pcm->nonatomic = rtd->dai_link->nonatomic;
|
|
|
|
rtd->pcm = be_pcm;
|
|
rtd->fe_compr = 1;
|
|
if (rtd->dai_link->dpcm_playback)
|
|
be_pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd;
|
|
if (rtd->dai_link->dpcm_capture)
|
|
be_pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd;
|
|
memcpy(compr->ops, &soc_compr_dyn_ops, sizeof(soc_compr_dyn_ops));
|
|
} else {
|
|
snprintf(new_name, sizeof(new_name), "%s %s-%d",
|
|
rtd->dai_link->stream_name, codec_dai->name, num);
|
|
|
|
memcpy(compr->ops, &soc_compr_ops, sizeof(soc_compr_ops));
|
|
}
|
|
|
|
for_each_rtd_components(rtd, i, component) {
|
|
if (!component->driver->compress_ops ||
|
|
!component->driver->compress_ops->copy)
|
|
continue;
|
|
|
|
compr->ops->copy = snd_soc_component_compr_copy;
|
|
break;
|
|
}
|
|
|
|
ret = snd_compress_new(rtd->card->snd_card, num, direction,
|
|
new_name, compr);
|
|
if (ret < 0) {
|
|
component = asoc_rtd_to_codec(rtd, 0)->component;
|
|
dev_err(component->dev,
|
|
"Compress ASoC: can't create compress for codec %s: %d\n",
|
|
component->name, ret);
|
|
return ret;
|
|
}
|
|
|
|
/* DAPM dai link stream work */
|
|
rtd->close_delayed_work_func = snd_soc_close_delayed_work;
|
|
|
|
rtd->compr = compr;
|
|
compr->private_data = rtd;
|
|
|
|
dev_dbg(rtd->card->dev, "Compress ASoC: %s <-> %s mapping ok\n",
|
|
codec_dai->name, cpu_dai->name);
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(snd_soc_new_compress);
|