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Diffstat (limited to 'sound/soc/generic/simple-scu-card.c')
-rw-r--r--sound/soc/generic/simple-scu-card.c264
1 files changed, 204 insertions, 60 deletions
diff --git a/sound/soc/generic/simple-scu-card.c b/sound/soc/generic/simple-scu-card.c
index 85b46f0eae0f..9d7299d536a8 100644
--- a/sound/soc/generic/simple-scu-card.c
+++ b/sound/soc/generic/simple-scu-card.c
@@ -21,14 +21,18 @@
struct simple_card_data {
struct snd_soc_card snd_card;
- struct snd_soc_codec_conf codec_conf;
struct simple_dai_props {
- struct asoc_simple_dai dai;
+ 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)
@@ -46,8 +50,17 @@ static int asoc_simple_card_startup(struct snd_pcm_substream *substream)
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 asoc_simple_card_clk_enable(&dai_props->dai);
+ return ret;
}
static void asoc_simple_card_shutdown(struct snd_pcm_substream *substream)
@@ -57,7 +70,9 @@ static void asoc_simple_card_shutdown(struct snd_pcm_substream *substream)
struct simple_dai_props *dai_props =
simple_priv_to_props(priv, rtd->num);
- asoc_simple_card_clk_disable(&dai_props->dai);
+ 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 = {
@@ -67,42 +82,57 @@ static const struct snd_soc_ops asoc_simple_card_ops = {
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 snd_soc_dai *dai;
- struct snd_soc_dai_link *dai_link;
- struct simple_dai_props *dai_props;
- int num = rtd->num;
+ 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;
- dai_link = simple_priv_to_link(priv, num);
- dai_props = simple_priv_to_props(priv, num);
- dai = dai_link->dynamic ?
- rtd->cpu_dai :
- rtd->codec_dai;
+ ret = asoc_simple_card_init_dai(rtd->cpu_dai,
+ dai_props->cpu_dai);
+ if (ret < 0)
+ return ret;
- return asoc_simple_card_init_dai(dai, &dai_props->dai);
+ 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 *np,
+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,
- unsigned int daifmt,
- int idx, bool is_fe)
+ 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, idx);
- struct simple_dai_props *dai_props = simple_priv_to_props(priv, idx);
+ 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;
@@ -117,12 +147,15 @@ static int asoc_simple_card_dai_link_of(struct device_node *np,
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_props->dai);
+ ret = asoc_simple_card_parse_clk_cpu(dev, np, dai_link, dai);
if (ret < 0)
return ret;
@@ -134,6 +167,8 @@ static int asoc_simple_card_dai_link_of(struct device_node *np,
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";
@@ -143,11 +178,17 @@ static int asoc_simple_card_dai_link_of(struct device_node *np,
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_props->dai);
+ ret = asoc_simple_card_parse_clk_codec(dev, np, dai_link, dai);
if (ret < 0)
return ret;
@@ -157,13 +198,20 @@ static int asoc_simple_card_dai_link_of(struct device_node *np,
if (ret < 0)
return ret;
- snd_soc_of_parse_audio_prefix(card,
- &priv->codec_conf,
+ /* 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");
}
- ret = asoc_simple_card_of_parse_tdm(np, &dai_props->dai);
+ asoc_simple_card_parse_convert(dev, link, prefix, &dai_props->adata);
+
+ ret = asoc_simple_card_of_parse_tdm(np, dai);
if (ret)
return ret;
@@ -171,7 +219,11 @@ static int asoc_simple_card_dai_link_of(struct device_node *np,
if (ret < 0)
return ret;
- dai_link->dai_fmt = daifmt;
+ 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;
@@ -184,52 +236,136 @@ 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);
- struct device_node *node = dev->of_node;
- unsigned int daifmt = 0;
bool is_fe;
- int ret, i;
+ int ret, loop;
+ int dai_idx, link_idx, conf_idx;
- if (!node)
+ 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, 0);
+ ret = asoc_simple_card_of_parse_routing(card, PREFIX);
if (ret < 0)
return ret;
- asoc_simple_card_parse_convert(dev, PREFIX, &priv->adata);
+ asoc_simple_card_parse_convert(dev, top, PREFIX, &priv->adata);
- /* find 1st codec */
- np = of_get_child_by_name(node, PREFIX "codec");
- if (!np)
- return -ENODEV;
+ 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_daifmt(dev, node, np, PREFIX, &daifmt);
+ ret = asoc_simple_card_parse_card_name(card, PREFIX);
if (ret < 0)
return ret;
- i = 0;
- for_each_child_of_node(node, np) {
- is_fe = false;
- if (strcmp(np->name, PREFIX "cpu") == 0)
- is_fe = true;
+ return 0;
+}
- ret = asoc_simple_card_dai_link_of(np, priv, daifmt, i, is_fe);
- if (ret < 0)
- return ret;
- i++;
+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;
}
- ret = asoc_simple_card_parse_card_name(card, PREFIX);
- if (ret < 0)
- return ret;
+ loop = 1;
+ node = of_get_child_by_name(top, PREFIX "dai-link");
+ if (!node) {
+ node = top;
+ loop = 0;
+ }
- return 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)
@@ -237,21 +373,27 @@ 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;
- struct device_node *np = dev->of_node;
- int num, ret, i;
+ 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;
- num = of_get_child_count(np);
+ asoc_simple_card_get_dais_count(dev, &lnum, &dnum, &cnum);
+ if (!lnum || !dnum)
+ return -EINVAL;
- dai_props = devm_kcalloc(dev, num, sizeof(*dai_props), GFP_KERNEL);
- dai_link = devm_kcalloc(dev, num, sizeof(*dai_link), GFP_KERNEL);
- if (!dai_props || !dai_link)
+ 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;
/*
@@ -260,7 +402,7 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
* see
* soc-core.c :: snd_soc_init_multicodec()
*/
- for (i = 0; i < num; i++) {
+ 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;
@@ -268,15 +410,17 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
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 = num;
- card->codec_conf = &priv->codec_conf;
- card->num_configs = 1;
+ card->num_links = lnum;
+ card->codec_conf = cconf;
+ card->num_configs = cnum;
ret = asoc_simple_card_parse_of(priv);
if (ret < 0) {