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Diffstat (limited to 'sound/soc/generic/simple-card.c')
-rw-r--r--sound/soc/generic/simple-card.c305
1 files changed, 112 insertions, 193 deletions
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index 43295f024982..f608f8d23f3d 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -37,13 +37,15 @@ struct simple_card_data {
unsigned int mclk_fs;
struct asoc_simple_jack hp_jack;
struct asoc_simple_jack mic_jack;
- struct snd_soc_dai_link dai_link[]; /* dynamically allocated */
+ struct snd_soc_dai_link *dai_link;
};
#define simple_priv_to_dev(priv) ((priv)->snd_card.dev)
-#define simple_priv_to_link(priv, i) ((priv)->snd_card.dai_link + i)
-#define simple_priv_to_props(priv, i) ((priv)->dai_props + i)
+#define simple_priv_to_link(priv, i) ((priv)->snd_card.dai_link + (i))
+#define simple_priv_to_props(priv, i) ((priv)->dai_props + (i))
+#define DAI "sound-dai"
+#define CELL "#sound-dai-cells"
#define PREFIX "simple-audio-card,"
#define asoc_simple_card_init_hp(card, sjack, prefix)\
@@ -112,13 +114,13 @@ 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 =
- &priv->dai_props[rtd->num];
+ simple_priv_to_props(priv, rtd->num);
int ret;
ret = clk_prepare_enable(dai_props->cpu_dai.clk);
if (ret)
return ret;
-
+
ret = clk_prepare_enable(dai_props->codec_dai.clk);
if (ret)
clk_disable_unprepare(dai_props->cpu_dai.clk);
@@ -131,7 +133,7 @@ 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 =
- &priv->dai_props[rtd->num];
+ simple_priv_to_props(priv, rtd->num);
clk_disable_unprepare(dai_props->cpu_dai.clk);
@@ -145,7 +147,8 @@ static int asoc_simple_card_hw_params(struct snd_pcm_substream *substream,
struct snd_soc_dai *codec_dai = rtd->codec_dai;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
- struct simple_dai_props *dai_props = &priv->dai_props[rtd->num];
+ struct simple_dai_props *dai_props =
+ simple_priv_to_props(priv, rtd->num);
unsigned int mclk, mclk_fs = 0;
int ret = 0;
@@ -177,51 +180,20 @@ static struct snd_soc_ops asoc_simple_card_ops = {
.hw_params = asoc_simple_card_hw_params,
};
-static int __asoc_simple_card_dai_init(struct snd_soc_dai *dai,
- struct asoc_simple_dai *set)
-{
- int ret;
-
- if (set->sysclk) {
- ret = snd_soc_dai_set_sysclk(dai, 0, set->sysclk, 0);
- if (ret && ret != -ENOTSUPP) {
- dev_err(dai->dev, "simple-card: set_sysclk error\n");
- goto err;
- }
- }
-
- if (set->slots) {
- ret = snd_soc_dai_set_tdm_slot(dai,
- set->tx_slot_mask,
- set->rx_slot_mask,
- set->slots,
- set->slot_width);
- if (ret && ret != -ENOTSUPP) {
- dev_err(dai->dev, "simple-card: set_tdm_slot error\n");
- goto err;
- }
- }
-
- ret = 0;
-
-err:
- return ret;
-}
-
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 *codec = rtd->codec_dai;
struct snd_soc_dai *cpu = rtd->cpu_dai;
- struct simple_dai_props *dai_props;
+ struct simple_dai_props *dai_props =
+ simple_priv_to_props(priv, rtd->num);
int ret;
- dai_props = &priv->dai_props[rtd->num];
- ret = __asoc_simple_card_dai_init(codec, &dai_props->codec_dai);
+ ret = asoc_simple_card_init_dai(codec, &dai_props->codec_dai);
if (ret < 0)
return ret;
- ret = __asoc_simple_card_dai_init(cpu, &dai_props->cpu_dai);
+ ret = asoc_simple_card_init_dai(cpu, &dai_props->cpu_dai);
if (ret < 0)
return ret;
@@ -236,78 +208,6 @@ static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
return 0;
}
-static int
-asoc_simple_card_sub_parse_of(struct device_node *np,
- struct asoc_simple_dai *dai,
- struct device_node **p_node,
- const char **name,
- int *args_count)
-{
- struct of_phandle_args args;
- struct clk *clk;
- u32 val;
- int ret;
-
- if (!np)
- return 0;
-
- /*
- * Get node via "sound-dai = <&phandle port>"
- * it will be used as xxx_of_node on soc_bind_dai_link()
- */
- ret = of_parse_phandle_with_args(np, "sound-dai",
- "#sound-dai-cells", 0, &args);
- if (ret)
- return ret;
-
- *p_node = args.np;
-
- if (args_count)
- *args_count = args.args_count;
-
- /* Get dai->name */
- if (name) {
- ret = snd_soc_of_get_dai_name(np, name);
- if (ret < 0)
- return ret;
- }
-
- if (!dai)
- return 0;
-
- /* Parse TDM slot */
- ret = snd_soc_of_parse_tdm_slot(np, &dai->tx_slot_mask,
- &dai->rx_slot_mask,
- &dai->slots, &dai->slot_width);
- if (ret)
- return ret;
-
- /*
- * Parse dai->sysclk come from "clocks = <&xxx>"
- * (if system has common clock)
- * or "system-clock-frequency = <xxx>"
- * or device's module clock.
- */
- if (of_property_read_bool(np, "clocks")) {
- clk = of_clk_get(np, 0);
- if (IS_ERR(clk)) {
- ret = PTR_ERR(clk);
- return ret;
- }
-
- dai->sysclk = clk_get_rate(clk);
- dai->clk = clk;
- } else if (!of_property_read_u32(np, "system-clock-frequency", &val)) {
- dai->sysclk = val;
- } else {
- clk = of_clk_get(args.np, 0);
- if (!IS_ERR(clk))
- dai->sysclk = clk_get_rate(clk);
- }
-
- return 0;
-}
-
static int asoc_simple_card_dai_link_of(struct device_node *node,
struct simple_card_data *priv,
int idx,
@@ -316,13 +216,14 @@ static int asoc_simple_card_dai_link_of(struct device_node *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 asoc_simple_dai *cpu_dai = &dai_props->cpu_dai;
+ struct asoc_simple_dai *codec_dai = &dai_props->codec_dai;
struct device_node *cpu = NULL;
struct device_node *plat = NULL;
struct device_node *codec = NULL;
char prop[128];
char *prefix = "";
- int ret, cpu_args;
- u32 val;
+ int ret, single_cpu;
/* For single DAI link & old style of DT node */
if (is_top_level_node)
@@ -348,36 +249,46 @@ static int asoc_simple_card_dai_link_of(struct device_node *node,
if (ret < 0)
goto dai_link_of_err;
- if (!of_property_read_u32(node, "mclk-fs", &val))
- dai_props->mclk_fs = val;
+ of_property_read_u32(node, "mclk-fs", &dai_props->mclk_fs);
- ret = asoc_simple_card_sub_parse_of(cpu, &dai_props->cpu_dai,
- &dai_link->cpu_of_node,
- &dai_link->cpu_dai_name,
- &cpu_args);
+ ret = asoc_simple_card_parse_cpu(cpu, dai_link,
+ DAI, CELL, &single_cpu);
if (ret < 0)
goto dai_link_of_err;
- ret = asoc_simple_card_sub_parse_of(codec, &dai_props->codec_dai,
- &dai_link->codec_of_node,
- &dai_link->codec_dai_name, NULL);
+ ret = asoc_simple_card_parse_codec(codec, dai_link, DAI, CELL);
if (ret < 0)
goto dai_link_of_err;
- ret = asoc_simple_card_sub_parse_of(plat, NULL,
- &dai_link->platform_of_node,
- NULL, NULL);
+ ret = asoc_simple_card_parse_platform(plat, dai_link, DAI, CELL);
if (ret < 0)
goto dai_link_of_err;
- if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name) {
- ret = -EINVAL;
+ ret = snd_soc_of_parse_tdm_slot(cpu, &cpu_dai->tx_slot_mask,
+ &cpu_dai->rx_slot_mask,
+ &cpu_dai->slots,
+ &cpu_dai->slot_width);
+ if (ret < 0)
+ goto dai_link_of_err;
+
+ ret = snd_soc_of_parse_tdm_slot(codec, &codec_dai->tx_slot_mask,
+ &codec_dai->rx_slot_mask,
+ &codec_dai->slots,
+ &codec_dai->slot_width);
+ if (ret < 0)
+ goto dai_link_of_err;
+
+ ret = asoc_simple_card_parse_clk_cpu(cpu, dai_link, cpu_dai);
+ if (ret < 0)
goto dai_link_of_err;
- }
- /* Assumes platform == cpu */
- if (!dai_link->platform_of_node)
- dai_link->platform_of_node = dai_link->cpu_of_node;
+ ret = asoc_simple_card_parse_clk_codec(codec, dai_link, codec_dai);
+ if (ret < 0)
+ goto dai_link_of_err;
+
+ ret = asoc_simple_card_canonicalize_dailink(dai_link);
+ if (ret < 0)
+ goto dai_link_of_err;
ret = asoc_simple_card_set_dailink_name(dev, dai_link,
"%s-%s",
@@ -398,17 +309,7 @@ static int asoc_simple_card_dai_link_of(struct device_node *node,
dai_link->codec_dai_name,
dai_props->codec_dai.sysclk);
- /*
- * In soc_bind_dai_link() will check cpu name after
- * of_node matching if dai_link has cpu_dai_name.
- * but, it will never match if name was created by
- * fmt_single_name() remove cpu_dai_name if cpu_args
- * was 0. See:
- * fmt_single_name()
- * fmt_multiple_name()
- */
- if (!cpu_args)
- dai_link->cpu_dai_name = NULL;
+ asoc_simple_card_canonicalize_cpu(dai_link, single_cpu);
dai_link_of_err:
of_node_put(cpu);
@@ -417,22 +318,54 @@ dai_link_of_err:
return ret;
}
+static int asoc_simple_card_parse_aux_devs(struct device_node *node,
+ struct simple_card_data *priv)
+{
+ struct device *dev = simple_priv_to_dev(priv);
+ struct device_node *aux_node;
+ int i, n, len;
+
+ if (!of_find_property(node, PREFIX "aux-devs", &len))
+ return 0; /* Ok to have no aux-devs */
+
+ n = len / sizeof(__be32);
+ if (n <= 0)
+ return -EINVAL;
+
+ priv->snd_card.aux_dev = devm_kzalloc(dev,
+ n * sizeof(*priv->snd_card.aux_dev), GFP_KERNEL);
+ if (!priv->snd_card.aux_dev)
+ return -ENOMEM;
+
+ for (i = 0; i < n; i++) {
+ aux_node = of_parse_phandle(node, PREFIX "aux-devs", i);
+ if (!aux_node)
+ return -EINVAL;
+ priv->snd_card.aux_dev[i].codec_of_node = aux_node;
+ }
+
+ priv->snd_card.num_aux_devs = n;
+ return 0;
+}
+
static int asoc_simple_card_parse_of(struct device_node *node,
struct simple_card_data *priv)
{
struct device *dev = simple_priv_to_dev(priv);
- u32 val;
+ struct device_node *dai_link;
int ret;
if (!node)
return -EINVAL;
+ dai_link = of_get_child_by_name(node, PREFIX "dai-link");
+
/* The off-codec widgets */
if (of_property_read_bool(node, PREFIX "widgets")) {
ret = snd_soc_of_parse_audio_simple_widgets(&priv->snd_card,
PREFIX "widgets");
if (ret)
- return ret;
+ goto card_parse_end;
}
/* DAPM routes */
@@ -440,16 +373,14 @@ static int asoc_simple_card_parse_of(struct device_node *node,
ret = snd_soc_of_parse_audio_routing(&priv->snd_card,
PREFIX "routing");
if (ret)
- return ret;
+ goto card_parse_end;
}
/* Factor to mclk, used in hw_params() */
- ret = of_property_read_u32(node, PREFIX "mclk-fs", &val);
- if (ret == 0)
- priv->mclk_fs = val;
+ of_property_read_u32(node, PREFIX "mclk-fs", &priv->mclk_fs);
/* Single/Muti DAI link(s) & New style of DT node */
- if (of_get_child_by_name(node, PREFIX "dai-link")) {
+ if (dai_link) {
struct device_node *np = NULL;
int i = 0;
@@ -459,7 +390,7 @@ static int asoc_simple_card_parse_of(struct device_node *node,
i, false);
if (ret < 0) {
of_node_put(np);
- return ret;
+ goto card_parse_end;
}
i++;
}
@@ -467,66 +398,55 @@ static int asoc_simple_card_parse_of(struct device_node *node,
/* For single DAI link & old style of DT node */
ret = asoc_simple_card_dai_link_of(node, priv, 0, true);
if (ret < 0)
- return ret;
+ goto card_parse_end;
}
ret = asoc_simple_card_parse_card_name(&priv->snd_card, PREFIX);
- if (ret)
- return ret;
+ if (ret < 0)
+ goto card_parse_end;
- return 0;
-}
+ ret = asoc_simple_card_parse_aux_devs(node, priv);
-/* Decrease the reference count of the device nodes */
-static int asoc_simple_card_unref(struct snd_soc_card *card)
-{
- struct snd_soc_dai_link *dai_link;
- int num_links;
+card_parse_end:
+ of_node_put(dai_link);
- for (num_links = 0, dai_link = card->dai_link;
- num_links < card->num_links;
- num_links++, dai_link++) {
- of_node_put(dai_link->cpu_of_node);
- of_node_put(dai_link->codec_of_node);
- }
- return 0;
+ return ret;
}
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 device_node *np = pdev->dev.of_node;
struct device *dev = &pdev->dev;
- int num_links, ret;
+ int num, ret;
/* Get the number of DAI links */
if (np && of_get_child_by_name(np, PREFIX "dai-link"))
- num_links = of_get_child_count(np);
+ num = of_get_child_count(np);
else
- num_links = 1;
+ num = 1;
/* Allocate the private data and the DAI link array */
- priv = devm_kzalloc(dev,
- sizeof(*priv) + sizeof(*dai_link) * num_links,
- GFP_KERNEL);
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
- /* Init snd_soc_card */
- priv->snd_card.owner = THIS_MODULE;
- priv->snd_card.dev = dev;
- dai_link = priv->dai_link;
- priv->snd_card.dai_link = dai_link;
- priv->snd_card.num_links = num_links;
-
- /* Get room for the other properties */
- priv->dai_props = devm_kzalloc(dev,
- sizeof(*priv->dai_props) * num_links,
- GFP_KERNEL);
- if (!priv->dai_props)
+ dai_props = devm_kzalloc(dev, sizeof(*dai_props) * num, GFP_KERNEL);
+ dai_link = devm_kzalloc(dev, sizeof(*dai_link) * num, GFP_KERNEL);
+ if (!dai_props || !dai_link)
return -ENOMEM;
+ priv->dai_props = dai_props;
+ priv->dai_link = dai_link;
+
+ /* Init snd_soc_card */
+ priv->snd_card.owner = THIS_MODULE;
+ priv->snd_card.dev = dev;
+ priv->snd_card.dai_link = priv->dai_link;
+ priv->snd_card.num_links = num;
+
if (np && of_device_is_available(np)) {
ret = asoc_simple_card_parse_of(np, priv);
@@ -567,7 +487,6 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
sizeof(priv->dai_props->cpu_dai));
memcpy(&priv->dai_props->codec_dai, &cinfo->codec_dai,
sizeof(priv->dai_props->codec_dai));
-
}
snd_soc_card_set_drvdata(&priv->snd_card, priv);
@@ -575,9 +494,9 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
ret = devm_snd_soc_register_card(&pdev->dev, &priv->snd_card);
if (ret >= 0)
return ret;
-
err:
- asoc_simple_card_unref(&priv->snd_card);
+ asoc_simple_card_clean_reference(&priv->snd_card);
+
return ret;
}
@@ -589,7 +508,7 @@ static int asoc_simple_card_remove(struct platform_device *pdev)
asoc_simple_card_remove_jack(&priv->hp_jack);
asoc_simple_card_remove_jack(&priv->mic_jack);
- return asoc_simple_card_unref(card);
+ return asoc_simple_card_clean_reference(card);
}
static const struct of_device_id asoc_simple_of_match[] = {
@@ -611,6 +530,6 @@ static struct platform_driver asoc_simple_card = {
module_platform_driver(asoc_simple_card);
MODULE_ALIAS("platform:asoc-simple-card");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("ASoC Simple Sound Card");
MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");