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Diffstat (limited to 'sound/soc/generic/simple-scu-card.c')
-rw-r--r--sound/soc/generic/simple-scu-card.c474
1 files changed, 0 insertions, 474 deletions
diff --git a/sound/soc/generic/simple-scu-card.c b/sound/soc/generic/simple-scu-card.c
deleted file mode 100644
index 9d7299d536a8..000000000000
--- a/sound/soc/generic/simple-scu-card.c
+++ /dev/null
@@ -1,474 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-//
-// ASoC simple SCU sound card support
-//
-// Copyright (C) 2015 Renesas Solutions Corp.
-// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
-//
-// based on ${LINUX}/sound/soc/generic/simple-card.c
-
-#include <linux/clk.h>
-#include <linux/device.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/platform_device.h>
-#include <linux/string.h>
-#include <sound/jack.h>
-#include <sound/soc.h>
-#include <sound/soc-dai.h>
-#include <sound/simple_card_utils.h>
-
-struct simple_card_data {
- struct snd_soc_card snd_card;
- struct simple_dai_props {
- struct asoc_simple_dai *cpu_dai;
- struct asoc_simple_dai *codec_dai;
- struct snd_soc_dai_link_component codecs;
- struct snd_soc_dai_link_component platform;
- struct asoc_simple_card_data adata;
- struct snd_soc_codec_conf *codec_conf;
- } *dai_props;
- struct snd_soc_dai_link *dai_link;
- struct asoc_simple_dai *dais;
- struct asoc_simple_card_data adata;
- struct snd_soc_codec_conf *codec_conf;
-};
-
-#define simple_priv_to_card(priv) (&(priv)->snd_card)
-#define simple_priv_to_props(priv, i) ((priv)->dai_props + (i))
-#define simple_priv_to_dev(priv) (simple_priv_to_card(priv)->dev)
-#define simple_priv_to_link(priv, i) (simple_priv_to_card(priv)->dai_link + (i))
-
-#define DAI "sound-dai"
-#define CELL "#sound-dai-cells"
-#define PREFIX "simple-audio-card,"
-
-static int asoc_simple_card_startup(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
- struct simple_dai_props *dai_props =
- simple_priv_to_props(priv, rtd->num);
- int ret;
-
- ret = asoc_simple_card_clk_enable(dai_props->cpu_dai);
- if (ret)
- return ret;
-
- ret = asoc_simple_card_clk_enable(dai_props->codec_dai);
- if (ret)
- asoc_simple_card_clk_disable(dai_props->cpu_dai);
-
- return ret;
-}
-
-static void asoc_simple_card_shutdown(struct snd_pcm_substream *substream)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
- struct simple_dai_props *dai_props =
- simple_priv_to_props(priv, rtd->num);
-
- asoc_simple_card_clk_disable(dai_props->cpu_dai);
-
- asoc_simple_card_clk_disable(dai_props->codec_dai);
-}
-
-static const struct snd_soc_ops asoc_simple_card_ops = {
- .startup = asoc_simple_card_startup,
- .shutdown = asoc_simple_card_shutdown,
-};
-
-static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
-{
- struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
- struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num);
- int ret;
-
- ret = asoc_simple_card_init_dai(rtd->codec_dai,
- dai_props->codec_dai);
- if (ret < 0)
- return ret;
-
- ret = asoc_simple_card_init_dai(rtd->cpu_dai,
- dai_props->cpu_dai);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static int asoc_simple_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
- struct snd_pcm_hw_params *params)
-{
- struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
- struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num);
-
- asoc_simple_card_convert_fixup(&dai_props->adata, params);
-
- /* overwrite by top level adata if exist */
- asoc_simple_card_convert_fixup(&priv->adata, params);
-
- return 0;
-}
-
-static int asoc_simple_card_dai_link_of(struct device_node *link,
- struct device_node *np,
- struct device_node *codec,
- struct simple_card_data *priv,
- int *dai_idx, int link_idx,
- int *conf_idx, int is_fe,
- bool is_top_level_node)
-{
- struct device *dev = simple_priv_to_dev(priv);
- struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, link_idx);
- struct simple_dai_props *dai_props = simple_priv_to_props(priv, link_idx);
- struct snd_soc_card *card = simple_priv_to_card(priv);
- struct asoc_simple_dai *dai;
- char *prefix = "";
- int ret;
-
- /* For single DAI link & old style of DT node */
- if (is_top_level_node)
- prefix = PREFIX;
-
- if (is_fe) {
- int is_single_links = 0;
- struct snd_soc_dai_link_component *codecs;
-
- /* BE is dummy */
- codecs = dai_link->codecs;
- codecs->of_node = NULL;
- codecs->dai_name = "snd-soc-dummy-dai";
- codecs->name = "snd-soc-dummy";
-
- /* FE settings */
- dai_link->dynamic = 1;
- dai_link->dpcm_merged_format = 1;
-
- dai =
- dai_props->cpu_dai = &priv->dais[(*dai_idx)++];
-
- ret = asoc_simple_card_parse_cpu(np, dai_link, DAI, CELL,
- &is_single_links);
- if (ret)
- return ret;
-
- ret = asoc_simple_card_parse_clk_cpu(dev, np, dai_link, dai);
- if (ret < 0)
- return ret;
-
- ret = asoc_simple_card_set_dailink_name(dev, dai_link,
- "fe.%s",
- dai_link->cpu_dai_name);
- if (ret < 0)
- return ret;
-
- asoc_simple_card_canonicalize_cpu(dai_link, is_single_links);
- } else {
- struct snd_soc_codec_conf *cconf;
-
- /* FE is dummy */
- dai_link->cpu_of_node = NULL;
- dai_link->cpu_dai_name = "snd-soc-dummy-dai";
- dai_link->cpu_name = "snd-soc-dummy";
-
- /* BE settings */
- dai_link->no_pcm = 1;
- dai_link->be_hw_params_fixup = asoc_simple_card_be_hw_params_fixup;
-
- dai =
- dai_props->codec_dai = &priv->dais[(*dai_idx)++];
-
- cconf =
- dai_props->codec_conf = &priv->codec_conf[(*conf_idx)++];
-
- ret = asoc_simple_card_parse_codec(np, dai_link, DAI, CELL);
- if (ret < 0)
- return ret;
-
- ret = asoc_simple_card_parse_clk_codec(dev, np, dai_link, dai);
- if (ret < 0)
- return ret;
-
- ret = asoc_simple_card_set_dailink_name(dev, dai_link,
- "be.%s",
- dai_link->codecs->dai_name);
- if (ret < 0)
- return ret;
-
- /* check "prefix" from top node */
- snd_soc_of_parse_audio_prefix(card, cconf,
- dai_link->codecs->of_node,
- PREFIX "prefix");
- /* check "prefix" from each node if top doesn't have */
- if (!cconf->of_node)
- snd_soc_of_parse_node_prefix(np, cconf,
- dai_link->codecs->of_node,
- "prefix");
- }
-
- asoc_simple_card_parse_convert(dev, link, prefix, &dai_props->adata);
-
- ret = asoc_simple_card_of_parse_tdm(np, dai);
- if (ret)
- return ret;
-
- ret = asoc_simple_card_canonicalize_dailink(dai_link);
- if (ret < 0)
- return ret;
-
- ret = asoc_simple_card_parse_daifmt(dev, link, codec,
- prefix, &dai_link->dai_fmt);
- if (ret < 0)
- return ret;
-
- dai_link->dpcm_playback = 1;
- dai_link->dpcm_capture = 1;
- dai_link->ops = &asoc_simple_card_ops;
- dai_link->init = asoc_simple_card_dai_init;
-
- return 0;
-}
-
-static int asoc_simple_card_parse_of(struct simple_card_data *priv)
-
-{
- struct device *dev = simple_priv_to_dev(priv);
- struct device_node *top = dev->of_node;
- struct device_node *node;
- struct device_node *np;
- struct device_node *codec;
- struct snd_soc_card *card = simple_priv_to_card(priv);
- bool is_fe;
- int ret, loop;
- int dai_idx, link_idx, conf_idx;
-
- if (!top)
- return -EINVAL;
-
- ret = asoc_simple_card_of_parse_widgets(card, PREFIX);
- if (ret < 0)
- return ret;
-
- ret = asoc_simple_card_of_parse_routing(card, PREFIX);
- if (ret < 0)
- return ret;
-
- asoc_simple_card_parse_convert(dev, top, PREFIX, &priv->adata);
-
- loop = 1;
- link_idx = 0;
- dai_idx = 0;
- conf_idx = 0;
- node = of_get_child_by_name(top, PREFIX "dai-link");
- if (!node) {
- node = dev->of_node;
- loop = 0;
- }
-
- do {
- codec = of_get_child_by_name(node,
- loop ? "codec" : PREFIX "codec");
- if (!codec)
- return -ENODEV;
-
- for_each_child_of_node(node, np) {
- is_fe = (np != codec);
-
- ret = asoc_simple_card_dai_link_of(node, np, codec, priv,
- &dai_idx, link_idx++,
- &conf_idx,
- is_fe, !loop);
- if (ret < 0)
- return ret;
- }
- node = of_get_next_child(top, node);
- } while (loop && node);
-
- ret = asoc_simple_card_parse_card_name(card, PREFIX);
- if (ret < 0)
- return ret;
-
- return 0;
-}
-
-static void asoc_simple_card_get_dais_count(struct device *dev,
- int *link_num,
- int *dais_num,
- int *ccnf_num)
-{
- struct device_node *top = dev->of_node;
- struct device_node *node;
- int loop;
- int num;
-
- /*
- * link_num : number of links.
- * CPU-Codec / CPU-dummy / dummy-Codec
- * dais_num : number of DAIs
- * ccnf_num : number of codec_conf
- * same number for "dummy-Codec"
- *
- * ex1)
- * CPU0 --- Codec0 link : 5
- * CPU1 --- Codec1 dais : 7
- * CPU2 -/ ccnf : 1
- * CPU3 --- Codec2
- *
- * => 5 links = 2xCPU-Codec + 2xCPU-dummy + 1xdummy-Codec
- * => 7 DAIs = 4xCPU + 3xCodec
- * => 1 ccnf = 1xdummy-Codec
- *
- * ex2)
- * CPU0 --- Codec0 link : 5
- * CPU1 --- Codec1 dais : 6
- * CPU2 -/ ccnf : 1
- * CPU3 -/
- *
- * => 5 links = 1xCPU-Codec + 3xCPU-dummy + 1xdummy-Codec
- * => 6 DAIs = 4xCPU + 2xCodec
- * => 1 ccnf = 1xdummy-Codec
- *
- * ex3)
- * CPU0 --- Codec0 link : 6
- * CPU1 -/ dais : 6
- * CPU2 --- Codec1 ccnf : 2
- * CPU3 -/
- *
- * => 6 links = 0xCPU-Codec + 4xCPU-dummy + 2xdummy-Codec
- * => 6 DAIs = 4xCPU + 2xCodec
- * => 2 ccnf = 2xdummy-Codec
- */
- if (!top) {
- (*link_num) = 1;
- (*dais_num) = 2;
- (*ccnf_num) = 0;
- return;
- }
-
- loop = 1;
- node = of_get_child_by_name(top, PREFIX "dai-link");
- if (!node) {
- node = top;
- loop = 0;
- }
-
- do {
- num = of_get_child_count(node);
- (*dais_num) += num;
- if (num > 2) {
- (*link_num) += num;
- (*ccnf_num)++;
- } else {
- (*link_num)++;
- }
- node = of_get_next_child(top, node);
- } while (loop && node);
-}
-
-static int asoc_simple_card_probe(struct platform_device *pdev)
-{
- struct simple_card_data *priv;
- struct snd_soc_dai_link *dai_link;
- struct simple_dai_props *dai_props;
- struct asoc_simple_dai *dais;
- struct snd_soc_card *card;
- struct snd_soc_codec_conf *cconf;
- struct device *dev = &pdev->dev;
- int ret, i;
- int lnum = 0, dnum = 0, cnum = 0;
-
- /* Allocate the private data */
- priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- asoc_simple_card_get_dais_count(dev, &lnum, &dnum, &cnum);
- if (!lnum || !dnum)
- return -EINVAL;
-
- dai_props = devm_kcalloc(dev, lnum, sizeof(*dai_props), GFP_KERNEL);
- dai_link = devm_kcalloc(dev, lnum, sizeof(*dai_link), GFP_KERNEL);
- dais = devm_kcalloc(dev, dnum, sizeof(*dais), GFP_KERNEL);
- cconf = devm_kcalloc(dev, cnum, sizeof(*cconf), GFP_KERNEL);
- if (!dai_props || !dai_link || !dais)
- return -ENOMEM;
-
- /*
- * Use snd_soc_dai_link_component instead of legacy style
- * It is codec only. but cpu/platform will be supported in the future.
- * see
- * soc-core.c :: snd_soc_init_multicodec()
- */
- for (i = 0; i < lnum; i++) {
- dai_link[i].codecs = &dai_props[i].codecs;
- dai_link[i].num_codecs = 1;
- dai_link[i].platform = &dai_props[i].platform;
- }
-
- priv->dai_props = dai_props;
- priv->dai_link = dai_link;
- priv->dais = dais;
- priv->codec_conf = cconf;
-
- /* Init snd_soc_card */
- card = simple_priv_to_card(priv);
- card->owner = THIS_MODULE;
- card->dev = dev;
- card->dai_link = priv->dai_link;
- card->num_links = lnum;
- card->codec_conf = cconf;
- card->num_configs = cnum;
-
- ret = asoc_simple_card_parse_of(priv);
- if (ret < 0) {
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "parse error %d\n", ret);
- goto err;
- }
-
- snd_soc_card_set_drvdata(card, priv);
-
- ret = devm_snd_soc_register_card(dev, card);
- if (ret < 0)
- goto err;
-
- return 0;
-err:
- asoc_simple_card_clean_reference(card);
-
- return ret;
-}
-
-static int asoc_simple_card_remove(struct platform_device *pdev)
-{
- struct snd_soc_card *card = platform_get_drvdata(pdev);
-
- return asoc_simple_card_clean_reference(card);
-}
-
-static const struct of_device_id asoc_simple_of_match[] = {
- { .compatible = "renesas,rsrc-card", },
- { .compatible = "simple-scu-audio-card", },
- {},
-};
-MODULE_DEVICE_TABLE(of, asoc_simple_of_match);
-
-static struct platform_driver asoc_simple_card = {
- .driver = {
- .name = "simple-scu-audio-card",
- .pm = &snd_soc_pm_ops,
- .of_match_table = asoc_simple_of_match,
- },
- .probe = asoc_simple_card_probe,
- .remove = asoc_simple_card_remove,
-};
-
-module_platform_driver(asoc_simple_card);
-
-MODULE_ALIAS("platform:asoc-simple-scu-card");
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("ASoC Simple SCU Sound Card");
-MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");