Release 4.17 sound/soc/generic/simple-card.c
/*
* ASoC simple sound card support
*
* Copyright (C) 2012 Renesas Solutions Corp.
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#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>
struct asoc_simple_jack {
struct snd_soc_jack jack;
struct snd_soc_jack_pin pin;
struct snd_soc_jack_gpio gpio;
};
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;
unsigned int mclk_fs;
} *dai_props;
unsigned int mclk_fs;
struct asoc_simple_jack hp_jack;
struct asoc_simple_jack mic_jack;
struct snd_soc_dai_link *dai_link;
};
#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,"
#define asoc_simple_card_init_hp(card, sjack, prefix)\
asoc_simple_card_init_jack(card, sjack, 1, prefix)
#define asoc_simple_card_init_mic(card, sjack, prefix)\
asoc_simple_card_init_jack(card, sjack, 0, prefix)
static int asoc_simple_card_init_jack(struct snd_soc_card *card,
struct asoc_simple_jack *sjack,
int is_hp, char *prefix)
{
struct device *dev = card->dev;
enum of_gpio_flags flags;
char prop[128];
char *pin_name;
char *gpio_name;
int mask;
int det;
sjack->gpio.gpio = -ENOENT;
if (is_hp) {
snprintf(prop, sizeof(prop), "%shp-det-gpio", prefix);
pin_name = "Headphones";
gpio_name = "Headphone detection";
mask = SND_JACK_HEADPHONE;
} else {
snprintf(prop, sizeof(prop), "%smic-det-gpio", prefix);
pin_name = "Mic Jack";
gpio_name = "Mic detection";
mask = SND_JACK_MICROPHONE;
}
det = of_get_named_gpio_flags(dev->of_node, prop, 0, &flags);
if (det == -EPROBE_DEFER)
return -EPROBE_DEFER;
if (gpio_is_valid(det)) {
sjack->pin.pin = pin_name;
sjack->pin.mask = mask;
sjack->gpio.name = gpio_name;
sjack->gpio.report = mask;
sjack->gpio.gpio = det;
sjack->gpio.invert = !!(flags & OF_GPIO_ACTIVE_LOW);
sjack->gpio.debounce_time = 150;
snd_soc_card_jack_new(card, pin_name, mask,
&sjack->jack,
&sjack->pin, 1);
snd_soc_jack_add_gpios(&sjack->jack, 1,
&sjack->gpio);
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kuninori Morimoto | 263 | 100.00% | 1 | 100.00% |
| Total | 263 | 100.00% | 1 | 100.00% |
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jyri Sarha | 80 | 87.91% | 1 | 25.00% |
| Kuninori Morimoto | 10 | 10.99% | 2 | 50.00% |
| Mengdong Lin | 1 | 1.10% | 1 | 25.00% |
| Total | 91 | 100.00% | 4 | 100.00% |
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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jyri Sarha | 53 | 85.48% | 1 | 25.00% |
| Kuninori Morimoto | 8 | 12.90% | 2 | 50.00% |
| Mengdong Lin | 1 | 1.61% | 1 | 25.00% |
| Total | 62 | 100.00% | 4 | 100.00% |
static int asoc_simple_card_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
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 =
simple_priv_to_props(priv, rtd->num);
unsigned int mclk, mclk_fs = 0;
int ret = 0;
if (priv->mclk_fs)
mclk_fs = priv->mclk_fs;
else if (dai_props->mclk_fs)
mclk_fs = dai_props->mclk_fs;
if (mclk_fs) {
mclk = params_rate(params) * mclk_fs;
ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
SND_SOC_CLOCK_IN);
if (ret && ret != -ENOTSUPP)
goto err;
ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
SND_SOC_CLOCK_OUT);
if (ret && ret != -ENOTSUPP)
goto err;
}
return 0;
err:
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Andrew Lunn | 83 | 46.11% | 1 | 16.67% |
| Arnaud Pouliquen | 63 | 35.00% | 2 | 33.33% |
| Kuninori Morimoto | 33 | 18.33% | 2 | 33.33% |
| Mengdong Lin | 1 | 0.56% | 1 | 16.67% |
| Total | 180 | 100.00% | 6 | 100.00% |
static const struct snd_soc_ops asoc_simple_card_ops = {
.startup = asoc_simple_card_startup,
.shutdown = asoc_simple_card_shutdown,
.hw_params = asoc_simple_card_hw_params,
};
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 =
simple_priv_to_props(priv, rtd->num);
int ret;
ret = asoc_simple_card_init_dai(codec, &dai_props->codec_dai);
if (ret < 0)
return ret;
ret = asoc_simple_card_init_dai(cpu, &dai_props->cpu_dai);
if (ret < 0)
return ret;
ret = asoc_simple_card_init_hp(rtd->card, &priv->hp_jack, PREFIX);
if (ret < 0)
return ret;
ret = asoc_simple_card_init_mic(rtd->card, &priv->mic_jack, PREFIX);
if (ret < 0)
return ret;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kuninori Morimoto | 110 | 71.90% | 5 | 33.33% |
| Dylan Reid | 17 | 11.11% | 1 | 6.67% |
| Jean-François Moine | 12 | 7.84% | 4 | 26.67% |
| Lars-Peter Clausen | 4 | 2.61% | 1 | 6.67% |
| Jianqun Xu | 4 | 2.61% | 1 | 6.67% |
| Xiubo Li | 3 | 1.96% | 1 | 6.67% |
| Mengdong Lin | 2 | 1.31% | 1 | 6.67% |
| Stefan Agner | 1 | 0.65% | 1 | 6.67% |
| Total | 153 | 100.00% | 15 | 100.00% |
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 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, single_cpu;
/* For single DAI link & old style of DT node */
if (is_top_level_node)
prefix = PREFIX;
snprintf(prop, sizeof(prop), "%scpu", prefix);
cpu = of_get_child_by_name(node, prop);
if (!cpu) {
ret = -EINVAL;
dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop);
goto dai_link_of_err;
}
snprintf(prop, sizeof(prop), "%splat", prefix);
plat = of_get_child_by_name(node, prop);
snprintf(prop, sizeof(prop), "%scodec", prefix);
codec = of_get_child_by_name(node, prop);
if (!codec) {
ret = -EINVAL;
dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop);
goto dai_link_of_err;
}
ret = asoc_simple_card_parse_daifmt(dev, node, codec,
prefix, &dai_link->dai_fmt);
if (ret < 0)
goto dai_link_of_err;
of_property_read_u32(node, "mclk-fs", &dai_props->mclk_fs);
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_parse_codec(codec, dai_link, DAI, CELL);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_parse_platform(plat, dai_link, DAI, CELL);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_of_parse_tdm(cpu, cpu_dai);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_of_parse_tdm(codec, codec_dai);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_parse_clk_cpu(dev, cpu, dai_link, cpu_dai);
if (ret < 0)
goto dai_link_of_err;
ret = asoc_simple_card_parse_clk_codec(dev, 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",
dai_link->cpu_dai_name,
dai_link->codec_dai_name);
if (ret < 0)
goto dai_link_of_err;
dai_link->ops = &asoc_simple_card_ops;
dai_link->init = asoc_simple_card_dai_init;
asoc_simple_card_canonicalize_cpu(dai_link, single_cpu);
dai_link_of_err:
of_node_put(cpu);
of_node_put(codec);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kuninori Morimoto | 330 | 64.58% | 16 | 64.00% |
| Jyri Sarha | 63 | 12.33% | 1 | 4.00% |
| Jean-François Moine | 33 | 6.46% | 2 | 8.00% |
| Jun Nie | 32 | 6.26% | 1 | 4.00% |
| Julian Scheel | 26 | 5.09% | 1 | 4.00% |
| Arnaud Pouliquen | 11 | 2.15% | 1 | 4.00% |
| Andrew Lunn | 7 | 1.37% | 1 | 4.00% |
| Vishal Thanki | 6 | 1.17% | 1 | 4.00% |
| Nicolin Chen | 3 | 0.59% | 1 | 4.00% |
| Total | 511 | 100.00% | 25 | 100.00% |
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;
struct snd_soc_card *card = simple_priv_to_card(priv);
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;
card->aux_dev = devm_kzalloc(dev,
n * sizeof(*card->aux_dev), GFP_KERNEL);
if (!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;
card->aux_dev[i].codec_of_node = aux_node;
}
card->num_aux_devs = n;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Nikita Yushchenko | 158 | 91.33% | 1 | 50.00% |
| Kuninori Morimoto | 15 | 8.67% | 1 | 50.00% |
| Total | 173 | 100.00% | 2 | 100.00% |
static int asoc_simple_card_parse_of(struct simple_card_data *priv)
{
struct device *dev = simple_priv_to_dev(priv);
struct snd_soc_card *card = simple_priv_to_card(priv);
struct device_node *dai_link;
struct device_node *node = dev->of_node;
int ret;
if (!node)
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;
ret = asoc_simple_card_of_parse_routing(card, PREFIX, 1);
if (ret < 0)
goto card_parse_end;
/* Factor to mclk, used in hw_params() */
of_property_read_u32(node, PREFIX "mclk-fs", &priv->mclk_fs);
/* Single/Muti DAI link(s) & New style of DT node */
if (dai_link) {
struct device_node *np = NULL;
int i = 0;
for_each_child_of_node(node, np) {
dev_dbg(dev, "\tlink %d:\n", i);
ret = asoc_simple_card_dai_link_of(np, priv,
i, false);
if (ret < 0) {
of_node_put(np);
goto card_parse_end;
}
i++;
}
} else {
/* For single DAI link & old style of DT node */
ret = asoc_simple_card_dai_link_of(node, priv, 0, true);
if (ret < 0)
goto card_parse_end;
}
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);
card_parse_end:
of_node_put(dai_link);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kuninori Morimoto | 113 | 45.20% | 13 | 68.42% |
| Jyri Sarha | 90 | 36.00% | 2 | 10.53% |
| Nikita Yushchenko | 18 | 7.20% | 1 | 5.26% |
| Andrew Lunn | 11 | 4.40% | 1 | 5.26% |
| Xiubo Li | 11 | 4.40% | 1 | 5.26% |
| Jean-François Moine | 7 | 2.80% | 1 | 5.26% |
| Total | 250 | 100.00% | 19 | 100.00% |
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 *dev = &pdev->dev;
struct device_node *np = dev->of_node;
struct snd_soc_card *card;
int num, ret;
/* 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;
/* Allocate the private data and the DAI link array */
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
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 */
card = simple_priv_to_card(priv);
card->owner = THIS_MODULE;
card->dev = dev;
card->dai_link = priv->dai_link;
card->num_links = num;
if (np && of_device_is_available(np)) {
ret = asoc_simple_card_parse_of(priv);
if (ret < 0) {
if (ret != -EPROBE_DEFER)
dev_err(dev, "parse error %d\n", ret);
goto err;
}
} else {
struct asoc_simple_card_info *cinfo;
cinfo = dev->platform_data;
if (!cinfo) {
dev_err(dev, "no info for asoc-simple-card\n");
return -EINVAL;
}
if (!cinfo->name ||
!cinfo->codec_dai.name ||
!cinfo->codec ||
!cinfo->platform ||
!cinfo->cpu_dai.name) {
dev_err(dev, "insufficient asoc_simple_card_info settings\n");
return -EINVAL;
}
card->name = (cinfo->card) ? cinfo->card : cinfo->name;
dai_link->name = cinfo->name;
dai_link->stream_name = cinfo->name;
dai_link->platform_name = cinfo->platform;
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->dai_fmt = cinfo->daifmt;
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,
sizeof(priv->dai_props->codec_dai));
}
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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kuninori Morimoto | 299 | 61.27% | 14 | 48.28% |
| Jean-François Moine | 146 | 29.92% | 9 | 31.03% |
| Xiubo Li | 35 | 7.17% | 5 | 17.24% |
| Lars-Peter Clausen | 8 | 1.64% | 1 | 3.45% |
| Total | 488 | 100.00% | 29 | 100.00% |
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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Xiubo Li | 15 | 55.56% | 1 | 25.00% |
| Dylan Reid | 10 | 37.04% | 1 | 25.00% |
| Kuninori Morimoto | 1 | 3.70% | 1 | 25.00% |
| Geert Uytterhoeven | 1 | 3.70% | 1 | 25.00% |
| Total | 27 | 100.00% | 4 | 100.00% |
static const struct of_device_id asoc_simple_of_match[] = {
{ .compatible = "simple-audio-card", },
{},
};
MODULE_DEVICE_TABLE(of, asoc_simple_of_match);
static struct platform_driver asoc_simple_card = {
.driver = {
.name = "asoc-simple-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-card");
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("ASoC Simple Sound Card");
MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kuninori Morimoto | 1370 | 55.33% | 41 | 51.90% |
| Jyri Sarha | 286 | 11.55% | 3 | 3.80% |
| Jean-François Moine | 226 | 9.13% | 10 | 12.66% |
| Nikita Yushchenko | 176 | 7.11% | 1 | 1.27% |
| Andrew Lunn | 105 | 4.24% | 1 | 1.27% |
| Xiubo Li | 79 | 3.19% | 7 | 8.86% |
| Arnaud Pouliquen | 78 | 3.15% | 2 | 2.53% |
| Dylan Reid | 51 | 2.06% | 1 | 1.27% |
| Jun Nie | 32 | 1.29% | 1 | 1.27% |
| Julian Scheel | 26 | 1.05% | 1 | 1.27% |
| Lars-Peter Clausen | 12 | 0.48% | 2 | 2.53% |
| Fabio Estevam | 7 | 0.28% | 1 | 1.27% |
| Vishal Thanki | 6 | 0.24% | 1 | 1.27% |
| Peter Ujfalusi | 6 | 0.24% | 1 | 1.27% |
| Mengdong Lin | 5 | 0.20% | 1 | 1.27% |
| Jianqun Xu | 5 | 0.20% | 1 | 1.27% |
| Nicolin Chen | 3 | 0.12% | 1 | 1.27% |
| Julia Lawall | 1 | 0.04% | 1 | 1.27% |
| Geert Uytterhoeven | 1 | 0.04% | 1 | 1.27% |
| Stefan Agner | 1 | 0.04% | 1 | 1.27% |
| Total | 2476 | 100.00% | 79 | 100.00% |
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