diff --git a/sound/soc/generic/Kconfig b/sound/soc/generic/Kconfig
index 5395782424b4ba14ed4faa8d06791c5dd5ca48b0..92c2cf06f40ac89bebdd7a9f193ae1ed51983907 100644
--- a/sound/soc/generic/Kconfig
+++ b/sound/soc/generic/Kconfig
@@ -6,6 +6,7 @@ config SND_SIMPLE_CARD
select SND_SIMPLE_CARD_UTILS
help
This option enables generic simple sound card support
+ It also support DPCM of multi CPU single Codec ststem.
config SND_SIMPLE_SCU_CARD
tristate "ASoC Simple SCU sound card support"
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index 93d68161f9537c09b92370c8bbc20c6edd546907..c93f2e7dec4b7a3288d099789770a78a6ca150c0 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -22,6 +22,8 @@ struct simple_card_data {
struct asoc_simple_dai *codec_dai;
struct snd_soc_dai_link_component codecs; /* single codec */
struct snd_soc_dai_link_component platform;
+ struct asoc_simple_card_data adata;
+ struct snd_soc_codec_conf *codec_conf;
unsigned int mclk_fs;
} *dai_props;
unsigned int mclk_fs;
@@ -29,6 +31,8 @@ struct simple_card_data {
struct asoc_simple_jack mic_jack;
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)
@@ -74,6 +78,9 @@ static void asoc_simple_card_shutdown(struct snd_pcm_substream *substream)
static int asoc_simple_set_clk_rate(struct asoc_simple_dai *simple_dai,
unsigned long rate)
{
+ if (!simple_dai)
+ return 0;
+
if (!simple_dai->clk)
return 0;
@@ -151,6 +158,141 @@ static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
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_dpcm(struct device_node *node,
+ 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, node, 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;
+
+ of_property_read_u32(np, "mclk-fs", &dai_props->mclk_fs);
+
+ ret = asoc_simple_card_parse_daifmt(dev, node, 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_dai_link_of(struct device_node *node,
struct simple_card_data *priv,
int *dai_idx, int link_idx,
@@ -291,63 +433,153 @@ static int asoc_simple_card_parse_aux_devs(struct device_node *node,
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 snd_soc_card *card = simple_priv_to_card(priv);
- struct device_node *dai_link;
- struct device_node *node = dev->of_node;
- int ret;
- int link_idx, dai_idx;
-
- if (!node)
+ struct device_node *node;
+ struct device_node *np;
+ struct device_node *codec;
+ bool is_fe;
+ int ret, loop;
+ int dai_idx, link_idx, conf_idx;
+
+ if (!top)
return -EINVAL;
- dai_link = of_get_child_by_name(node, PREFIX "dai-link");
-
ret = asoc_simple_card_of_parse_widgets(card, PREFIX);
if (ret < 0)
- goto card_parse_end;
+ return ret;
ret = asoc_simple_card_of_parse_routing(card, PREFIX);
if (ret < 0)
- goto card_parse_end;
+ return ret;
/* Factor to mclk, used in hw_params() */
- of_property_read_u32(node, PREFIX "mclk-fs", &priv->mclk_fs);
+ of_property_read_u32(top, PREFIX "mclk-fs", &priv->mclk_fs);
+
+ asoc_simple_card_parse_convert(dev, top, PREFIX, &priv->adata);
/* Single/Muti DAI link(s) & New style of DT node */
- link_idx = 0;
- dai_idx = 0;
- if (dai_link) {
- struct device_node *np = NULL;
-
- for_each_child_of_node(node, np) {
- dev_dbg(dev, "\tlink %d:\n", link_idx);
- ret = asoc_simple_card_dai_link_of(np, priv,
- &dai_idx, link_idx++, false);
- if (ret < 0) {
- of_node_put(np);
- goto card_parse_end;
+ 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 {
+ /* DPCM */
+ if (of_get_child_count(node) > 2) {
+ for_each_child_of_node(node, np) {
+ codec = of_get_child_by_name(node,
+ loop ? "codec" :
+ PREFIX "codec");
+ if (!codec)
+ return -ENODEV;
+
+ is_fe = (np != codec);
+
+ ret = asoc_simple_card_dai_link_of_dpcm(
+ node, np, codec, priv,
+ &dai_idx, link_idx++, &conf_idx,
+ is_fe, !loop);
}
+ } else {
+ ret = asoc_simple_card_dai_link_of(
+ node, priv,
+ &dai_idx, link_idx++, !loop);
}
- } else {
- /* For single DAI link & old style of DT node */
- ret = asoc_simple_card_dai_link_of(node, priv,
- &dai_idx, link_idx++, true);
if (ret < 0)
- goto card_parse_end;
- }
+ return ret;
+
+ node = of_get_next_child(top, node);
+ } while (loop && node);
ret = asoc_simple_card_parse_card_name(card, PREFIX);
if (ret < 0)
- goto card_parse_end;
-
- ret = asoc_simple_card_parse_aux_devs(node, priv);
+ return ret;
-card_parse_end:
- of_node_put(dai_link);
+ ret = asoc_simple_card_parse_aux_devs(top, priv);
return ret;
}
+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_soc_card_probe(struct snd_soc_card *card)
{
struct simple_card_data *priv = snd_soc_card_get_drvdata(card);
@@ -373,22 +605,23 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
struct snd_soc_card *card;
- int num, ret, i;
-
- /* Get the number of DAI links */
- if (np && of_get_child_by_name(np, PREFIX "dai-link"))
- num = of_get_child_count(np);
- else
- num = 1;
+ struct snd_soc_codec_conf *cconf;
+ int lnum = 0, dnum = 0, cnum = 0;
+ int ret, i;
/* Allocate the private data and the DAI link array */
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
- dai_props = devm_kcalloc(dev, num, sizeof(*dai_props), GFP_KERNEL);
- dai_link = devm_kcalloc(dev, num, sizeof(*dai_link), GFP_KERNEL);
- dais = devm_kcalloc(dev, num * 2, sizeof(*dais), GFP_KERNEL);
+ 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;
@@ -398,7 +631,7 @@ 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;
@@ -407,13 +640,16 @@ 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->num_links = lnum;
+ card->codec_conf = cconf;
+ card->num_configs = cnum;
card->probe = asoc_simple_soc_card_probe;
if (np && of_device_is_available(np)) {
@@ -490,6 +726,7 @@ static int asoc_simple_card_remove(struct platform_device *pdev)
static const struct of_device_id asoc_simple_of_match[] = {
{ .compatible = "simple-audio-card", },
+ { .compatible = "simple-scu-audio-card", },
{},
};
MODULE_DEVICE_TABLE(of, asoc_simple_of_match);