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Diffstat (limited to 'sound/soc/generic/simple-card.c')
-rw-r--r--sound/soc/generic/simple-card.c229
1 files changed, 158 insertions, 71 deletions
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index cef7776b712c..d1b7293c133e 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -10,10 +10,13 @@
*/
#include <linux/clk.h>
#include <linux/device.h>
+#include <linux/gpio.h>
#include <linux/module.h>
#include <linux/of.h>
+#include <linux/of_gpio.h>
#include <linux/platform_device.h>
#include <linux/string.h>
+#include <sound/jack.h>
#include <sound/simple_card.h>
#include <sound/soc-dai.h>
#include <sound/soc.h>
@@ -25,9 +28,15 @@ struct simple_card_data {
struct asoc_simple_dai codec_dai;
} *dai_props;
unsigned int mclk_fs;
+ int gpio_hp_det;
+ int gpio_mic_det;
struct snd_soc_dai_link dai_link[]; /* dynamically allocated */
};
+#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)
+
static int asoc_simple_card_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
@@ -50,6 +59,32 @@ static struct snd_soc_ops asoc_simple_card_ops = {
.hw_params = asoc_simple_card_hw_params,
};
+static struct snd_soc_jack simple_card_hp_jack;
+static struct snd_soc_jack_pin simple_card_hp_jack_pins[] = {
+ {
+ .pin = "Headphones",
+ .mask = SND_JACK_HEADPHONE,
+ },
+};
+static struct snd_soc_jack_gpio simple_card_hp_jack_gpio = {
+ .name = "Headphone detection",
+ .report = SND_JACK_HEADPHONE,
+ .debounce_time = 150,
+};
+
+static struct snd_soc_jack simple_card_mic_jack;
+static struct snd_soc_jack_pin simple_card_mic_jack_pins[] = {
+ {
+ .pin = "Mic Jack",
+ .mask = SND_JACK_MICROPHONE,
+ },
+};
+static struct snd_soc_jack_gpio simple_card_mic_jack_gpio = {
+ .name = "Mic detection",
+ .report = SND_JACK_MICROPHONE,
+ .debounce_time = 150,
+};
+
static int __asoc_simple_card_dai_init(struct snd_soc_dai *dai,
struct asoc_simple_dai *set)
{
@@ -105,42 +140,70 @@ static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
if (ret < 0)
return ret;
+ if (gpio_is_valid(priv->gpio_hp_det)) {
+ snd_soc_jack_new(codec->codec, "Headphones", SND_JACK_HEADPHONE,
+ &simple_card_hp_jack);
+ snd_soc_jack_add_pins(&simple_card_hp_jack,
+ ARRAY_SIZE(simple_card_hp_jack_pins),
+ simple_card_hp_jack_pins);
+
+ simple_card_hp_jack_gpio.gpio = priv->gpio_hp_det;
+ snd_soc_jack_add_gpios(&simple_card_hp_jack, 1,
+ &simple_card_hp_jack_gpio);
+ }
+
+ if (gpio_is_valid(priv->gpio_mic_det)) {
+ snd_soc_jack_new(codec->codec, "Mic Jack", SND_JACK_MICROPHONE,
+ &simple_card_mic_jack);
+ snd_soc_jack_add_pins(&simple_card_mic_jack,
+ ARRAY_SIZE(simple_card_mic_jack_pins),
+ simple_card_mic_jack_pins);
+ simple_card_mic_jack_gpio.gpio = priv->gpio_mic_det;
+ snd_soc_jack_add_gpios(&simple_card_mic_jack, 1,
+ &simple_card_mic_jack_gpio);
+ }
return 0;
}
static int
asoc_simple_card_sub_parse_of(struct device_node *np,
struct asoc_simple_dai *dai,
- const struct device_node **p_node,
- const char **name)
+ struct device_node **p_node,
+ const char **name,
+ int *args_count)
{
- struct device_node *node;
+ struct of_phandle_args args;
struct clk *clk;
u32 val;
int ret;
/*
- * get node via "sound-dai = <&phandle port>"
+ * Get node via "sound-dai = <&phandle port>"
* it will be used as xxx_of_node on soc_bind_dai_link()
*/
- node = of_parse_phandle(np, "sound-dai", 0);
- if (!node)
- return -ENODEV;
- *p_node = node;
+ 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 */
+ /* Get dai->name */
ret = snd_soc_of_get_dai_name(np, name);
if (ret < 0)
return ret;
- /* parse TDM slot */
+ /* Parse TDM slot */
ret = snd_soc_of_parse_tdm_slot(np, &dai->slots, &dai->slot_width);
if (ret)
return ret;
/*
- * dai->sysclk come from
- * "clocks = <&xxx>" (if system has common clock)
+ * Parse dai->sysclk come from "clocks = <&xxx>"
+ * (if system has common clock)
* or "system-clock-frequency = <xxx>"
* or device's module clock.
*/
@@ -155,7 +218,7 @@ asoc_simple_card_sub_parse_of(struct device_node *np,
} else if (!of_property_read_u32(np, "system-clock-frequency", &val)) {
dai->sysclk = val;
} else {
- clk = of_clk_get(node, 0);
+ clk = of_clk_get(args.np, 0);
if (!IS_ERR(clk))
dai->sysclk = clk_get_rate(clk);
}
@@ -163,12 +226,14 @@ asoc_simple_card_sub_parse_of(struct device_node *np,
return 0;
}
-static int simple_card_dai_link_of(struct device_node *node,
- struct device *dev,
- struct snd_soc_dai_link *dai_link,
- struct simple_dai_props *dai_props,
- bool is_top_level_node)
+static int asoc_simple_card_dai_link_of(struct device_node *node,
+ struct simple_card_data *priv,
+ int idx,
+ 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 device_node *np = NULL;
struct device_node *bitclkmaster = NULL;
struct device_node *framemaster = NULL;
@@ -176,8 +241,9 @@ static int simple_card_dai_link_of(struct device_node *node,
char *name;
char prop[128];
char *prefix = "";
- int ret;
+ int ret, cpu_args;
+ /* For single DAI link & old style of DT node */
if (is_top_level_node)
prefix = "simple-audio-card,";
@@ -195,7 +261,8 @@ static int simple_card_dai_link_of(struct device_node *node,
ret = asoc_simple_card_sub_parse_of(np, &dai_props->cpu_dai,
&dai_link->cpu_of_node,
- &dai_link->cpu_dai_name);
+ &dai_link->cpu_dai_name,
+ &cpu_args);
if (ret < 0)
goto dai_link_of_err;
@@ -226,14 +293,16 @@ static int simple_card_dai_link_of(struct device_node *node,
ret = asoc_simple_card_sub_parse_of(np, &dai_props->codec_dai,
&dai_link->codec_of_node,
- &dai_link->codec_dai_name);
+ &dai_link->codec_dai_name, NULL);
if (ret < 0)
goto dai_link_of_err;
if (strlen(prefix) && !bitclkmaster && !framemaster) {
- /* No dai-link level and master setting was not found from
- sound node level, revert back to legacy DT parsing and
- take the settings from codec node. */
+ /*
+ * No DAI link level and master setting was found
+ * from sound node level, revert back to legacy DT
+ * parsing and take the settings from codec node.
+ */
dev_dbg(dev, "%s: Revert to legacy daifmt parsing\n",
__func__);
dai_props->cpu_dai.fmt = dai_props->codec_dai.fmt =
@@ -262,10 +331,10 @@ static int simple_card_dai_link_of(struct device_node *node,
goto dai_link_of_err;
}
- /* simple-card assumes platform == cpu */
+ /* Simple Card assumes platform == cpu */
dai_link->platform_of_node = dai_link->cpu_of_node;
- /* Link name is created from CPU/CODEC dai name */
+ /* DAI link name is created from CPU/CODEC dai name */
name = devm_kzalloc(dev,
strlen(dai_link->cpu_dai_name) +
strlen(dai_link->codec_dai_name) + 2,
@@ -274,6 +343,7 @@ static int simple_card_dai_link_of(struct device_node *node,
dai_link->codec_dai_name);
dai_link->name = dai_link->stream_name = name;
dai_link->ops = &asoc_simple_card_ops;
+ dai_link->init = asoc_simple_card_dai_init;
dev_dbg(dev, "\tname : %s\n", dai_link->stream_name);
dev_dbg(dev, "\tcpu : %s / %04x / %d\n",
@@ -285,6 +355,18 @@ static int simple_card_dai_link_of(struct device_node *node,
dai_props->codec_dai.fmt,
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;
+
dai_link_of_err:
if (np)
of_node_put(np);
@@ -296,19 +378,19 @@ dai_link_of_err:
}
static int asoc_simple_card_parse_of(struct device_node *node,
- struct simple_card_data *priv,
- struct device *dev,
- int multi)
+ struct simple_card_data *priv)
{
- struct snd_soc_dai_link *dai_link = priv->snd_card.dai_link;
- struct simple_dai_props *dai_props = priv->dai_props;
+ struct device *dev = simple_priv_to_dev(priv);
u32 val;
int ret;
- /* parsing the card name from DT */
+ if (!node)
+ return -EINVAL;
+
+ /* Parse the card name from DT */
snd_soc_of_parse_card_name(&priv->snd_card, "simple-audio-card,name");
- /* off-codec widgets */
+ /* The off-codec widgets */
if (of_property_read_bool(node, "simple-audio-card,widgets")) {
ret = snd_soc_of_parse_audio_simple_widgets(&priv->snd_card,
"simple-audio-card,widgets");
@@ -332,32 +414,45 @@ static int asoc_simple_card_parse_of(struct device_node *node,
dev_dbg(dev, "New simple-card: %s\n", priv->snd_card.name ?
priv->snd_card.name : "");
- if (multi) {
+ /* Single/Muti DAI link(s) & New style of DT node */
+ if (of_get_child_by_name(node, "simple-audio-card,dai-link")) {
struct device_node *np = NULL;
- int i;
- for (i = 0; (np = of_get_next_child(node, np)); i++) {
+ int i = 0;
+
+ for_each_child_of_node(node, np) {
dev_dbg(dev, "\tlink %d:\n", i);
- ret = simple_card_dai_link_of(np, dev, dai_link + i,
- dai_props + i, false);
+ ret = asoc_simple_card_dai_link_of(np, priv,
+ i, false);
if (ret < 0) {
of_node_put(np);
return ret;
}
+ i++;
}
} else {
- ret = simple_card_dai_link_of(node, dev, dai_link, dai_props,
- true);
+ /* 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;
}
+ priv->gpio_hp_det = of_get_named_gpio(node,
+ "simple-audio-card,hp-det-gpio", 0);
+ if (priv->gpio_hp_det == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+
+ priv->gpio_mic_det = of_get_named_gpio(node,
+ "simple-audio-card,mic-det-gpio", 0);
+ if (priv->gpio_mic_det == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+
if (!priv->snd_card.name)
priv->snd_card.name = priv->snd_card.dai_link->name;
return 0;
}
-/* update the reference count of the devices nodes at end of probe */
+/* Decrease the reference count of the device nodes */
static int asoc_simple_card_unref(struct platform_device *pdev)
{
struct snd_soc_card *card = platform_get_drvdata(pdev);
@@ -384,34 +479,32 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
struct snd_soc_dai_link *dai_link;
struct device_node *np = pdev->dev.of_node;
struct device *dev = &pdev->dev;
- int num_links, multi, ret;
+ int num_links, ret;
- /* get the number of DAI links */
- if (np && of_get_child_by_name(np, "simple-audio-card,dai-link")) {
+ /* Get the number of DAI links */
+ if (np && of_get_child_by_name(np, "simple-audio-card,dai-link"))
num_links = of_get_child_count(np);
- multi = 1;
- } else {
+ else
num_links = 1;
- multi = 0;
- }
- /* allocate the private data and the DAI link array */
+ /* Allocate the private data and the DAI link array */
priv = devm_kzalloc(dev,
sizeof(*priv) + sizeof(*dai_link) * num_links,
GFP_KERNEL);
if (!priv)
return -ENOMEM;
- /*
- * init snd_soc_card
- */
+ /* 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->gpio_hp_det = -ENOENT;
+ priv->gpio_mic_det = -ENOENT;
+
+ /* Get room for the other properties */
priv->dai_props = devm_kzalloc(dev,
sizeof(*priv->dai_props) * num_links,
GFP_KERNEL);
@@ -420,25 +513,13 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
if (np && of_device_is_available(np)) {
- ret = asoc_simple_card_parse_of(np, priv, dev, multi);
+ ret = asoc_simple_card_parse_of(np, priv);
if (ret < 0) {
if (ret != -EPROBE_DEFER)
dev_err(dev, "parse error %d\n", ret);
goto err;
}
- /*
- * 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 to escape name matching.
- * see
- * fmt_single_name()
- * fmt_multiple_name()
- */
- if (num_links == 1)
- dai_link->cpu_dai_name = NULL;
-
} else {
struct asoc_simple_card_info *cinfo;
@@ -464,6 +545,7 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
dai_link->codec_name = cinfo->codec;
dai_link->cpu_dai_name = cinfo->cpu_dai.name;
dai_link->codec_dai_name = cinfo->codec_dai.name;
+ dai_link->init = asoc_simple_card_dai_init;
memcpy(&priv->dai_props->cpu_dai, &cinfo->cpu_dai,
sizeof(priv->dai_props->cpu_dai));
memcpy(&priv->dai_props->codec_dai, &cinfo->codec_dai,
@@ -473,11 +555,6 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
priv->dai_props->codec_dai.fmt |= cinfo->daifmt;
}
- /*
- * init snd_soc_dai_link
- */
- dai_link->init = asoc_simple_card_dai_init;
-
snd_soc_card_set_drvdata(&priv->snd_card, priv);
ret = devm_snd_soc_register_card(&pdev->dev, &priv->snd_card);
@@ -491,6 +568,16 @@ err:
static int asoc_simple_card_remove(struct platform_device *pdev)
{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct simple_card_data *priv = snd_soc_card_get_drvdata(card);
+
+ if (gpio_is_valid(priv->gpio_hp_det))
+ snd_soc_jack_free_gpios(&simple_card_hp_jack, 1,
+ &simple_card_hp_jack_gpio);
+ if (gpio_is_valid(priv->gpio_mic_det))
+ snd_soc_jack_free_gpios(&simple_card_mic_jack, 1,
+ &simple_card_mic_jack_gpio);
+
return asoc_simple_card_unref(pdev);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 05:07:39 +0000