diff options
Diffstat (limited to '')
| -rw-r--r-- | sound/soc/mediatek/common/mtk-dsp-sof-common.c | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/sound/soc/mediatek/common/mtk-dsp-sof-common.c b/sound/soc/mediatek/common/mtk-dsp-sof-common.c new file mode 100644 index 000000000..d4d1d3b95 --- /dev/null +++ b/sound/soc/mediatek/common/mtk-dsp-sof-common.c @@ -0,0 +1,196 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * mtk-dsp-sof-common.c -- MediaTek dsp sof common ctrl + * + * Copyright (c) 2022 MediaTek Inc. + * Author: Chunxu Li <chunxu.li@mediatek.com> + */ + +#include "mtk-dsp-sof-common.h" +#include "mtk-soc-card.h" + +/* fixup the BE DAI link to match any values from topology */ +int mtk_sof_dai_link_fixup(struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_card *card = rtd->card; + struct mtk_soc_card_data *soc_card_data = snd_soc_card_get_drvdata(card); + struct mtk_sof_priv *sof_priv = soc_card_data->sof_priv; + int i, j, ret = 0; + + for (i = 0; i < sof_priv->num_streams; i++) { + struct snd_soc_dai *cpu_dai; + struct snd_soc_pcm_runtime *runtime; + struct snd_soc_dai_link *sof_dai_link = NULL; + const struct sof_conn_stream *conn = &sof_priv->conn_streams[i]; + + if (conn->normal_link && strcmp(rtd->dai_link->name, conn->normal_link)) + continue; + + for_each_card_rtds(card, runtime) { + if (strcmp(runtime->dai_link->name, conn->sof_link)) + continue; + + for_each_rtd_cpu_dais(runtime, j, cpu_dai) { + if (cpu_dai->stream_active[conn->stream_dir] > 0) { + sof_dai_link = runtime->dai_link; + break; + } + } + break; + } + + if (sof_dai_link && sof_dai_link->be_hw_params_fixup) + ret = sof_dai_link->be_hw_params_fixup(runtime, params); + + break; + } + + return ret; +} +EXPORT_SYMBOL_GPL(mtk_sof_dai_link_fixup); + +int mtk_sof_card_probe(struct snd_soc_card *card) +{ + int i; + struct snd_soc_dai_link *dai_link; + + /* Set stream_name to help sof bind widgets */ + for_each_card_prelinks(card, i, dai_link) { + if (dai_link->no_pcm && !dai_link->stream_name && dai_link->name) + dai_link->stream_name = dai_link->name; + } + + return 0; +} +EXPORT_SYMBOL_GPL(mtk_sof_card_probe); + +int mtk_sof_card_late_probe(struct snd_soc_card *card) +{ + struct snd_soc_pcm_runtime *rtd; + struct snd_soc_component *sof_comp = NULL; + struct mtk_soc_card_data *soc_card_data = + snd_soc_card_get_drvdata(card); + struct mtk_sof_priv *sof_priv = soc_card_data->sof_priv; + int i; + + /* 1. find sof component */ + for_each_card_rtds(card, rtd) { + sof_comp = snd_soc_rtdcom_lookup(rtd, "sof-audio-component"); + if (sof_comp) + break; + } + + if (!sof_comp) { + dev_info(card->dev, "probe without sof-audio-component\n"); + return 0; + } + + /* 2. add route path and fixup callback */ + for (i = 0; i < sof_priv->num_streams; i++) { + const struct sof_conn_stream *conn = &sof_priv->conn_streams[i]; + struct snd_soc_pcm_runtime *sof_rtd = NULL; + struct snd_soc_pcm_runtime *normal_rtd = NULL; + + for_each_card_rtds(card, rtd) { + if (!strcmp(rtd->dai_link->name, conn->sof_link)) { + sof_rtd = rtd; + continue; + } + if (!strcmp(rtd->dai_link->name, conn->normal_link)) { + normal_rtd = rtd; + continue; + } + if (normal_rtd && sof_rtd) + break; + } + if (normal_rtd && sof_rtd) { + int j; + struct snd_soc_dai *cpu_dai; + + for_each_rtd_cpu_dais(sof_rtd, j, cpu_dai) { + struct snd_soc_dapm_route route; + struct snd_soc_dapm_path *p = NULL; + struct snd_soc_dapm_widget *play_widget = + cpu_dai->playback_widget; + struct snd_soc_dapm_widget *cap_widget = + cpu_dai->capture_widget; + memset(&route, 0, sizeof(route)); + if (conn->stream_dir == SNDRV_PCM_STREAM_CAPTURE && + cap_widget) { + snd_soc_dapm_widget_for_each_sink_path(cap_widget, p) { + route.source = conn->sof_dma; + route.sink = p->sink->name; + snd_soc_dapm_add_routes(&card->dapm, &route, 1); + } + } else if (conn->stream_dir == SNDRV_PCM_STREAM_PLAYBACK && + play_widget) { + snd_soc_dapm_widget_for_each_source_path(play_widget, p) { + route.source = p->source->name; + route.sink = conn->sof_dma; + snd_soc_dapm_add_routes(&card->dapm, &route, 1); + } + } else { + dev_err(cpu_dai->dev, "stream dir and widget not pair\n"); + } + } + + sof_rtd->dai_link->be_hw_params_fixup = + sof_comp->driver->be_hw_params_fixup; + if (sof_priv->sof_dai_link_fixup) + normal_rtd->dai_link->be_hw_params_fixup = + sof_priv->sof_dai_link_fixup; + else + normal_rtd->dai_link->be_hw_params_fixup = mtk_sof_dai_link_fixup; + } + } + + return 0; +} +EXPORT_SYMBOL_GPL(mtk_sof_card_late_probe); + +int mtk_sof_dailink_parse_of(struct snd_soc_card *card, struct device_node *np, + const char *propname, struct snd_soc_dai_link *pre_dai_links, + int pre_num_links) +{ + struct device *dev = card->dev; + struct snd_soc_dai_link *parsed_dai_link; + const char *dai_name = NULL; + int i, j, ret, num_links, parsed_num_links = 0; + + num_links = of_property_count_strings(np, "mediatek,dai-link"); + if (num_links < 0 || num_links > card->num_links) { + dev_dbg(dev, "number of dai-link is invalid\n"); + return -EINVAL; + } + + parsed_dai_link = devm_kcalloc(dev, num_links, sizeof(*parsed_dai_link), GFP_KERNEL); + if (!parsed_dai_link) + return -ENOMEM; + + for (i = 0; i < num_links; i++) { + ret = of_property_read_string_index(np, propname, i, &dai_name); + if (ret) { + dev_dbg(dev, "ASoC: Property '%s' index %d could not be read: %d\n", + propname, i, ret); + return ret; + } + dev_dbg(dev, "ASoC: Property get dai_name:%s\n", dai_name); + for (j = 0; j < pre_num_links; j++) { + if (!strcmp(dai_name, pre_dai_links[j].name)) { + memcpy(&parsed_dai_link[parsed_num_links++], &pre_dai_links[j], + sizeof(struct snd_soc_dai_link)); + break; + } + } + } + + if (parsed_num_links != num_links) + return -EINVAL; + + card->dai_link = parsed_dai_link; + card->num_links = parsed_num_links; + + return 0; +} +EXPORT_SYMBOL_GPL(mtk_sof_dailink_parse_of); |