Release 4.11 sound/soc/generic/simple-scu-card.c
/*
* ASoC simple SCU sound card support
*
* Copyright (C) 2015 Renesas Solutions Corp.
* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
*
* based on ${LINUX}/sound/soc/generic/simple-card.c
*
* 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/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/string.h>
#include <sound/jack.h>
#include <sound/soc.h>
#include <sound/soc-dai.h>
#include <sound/simple_card_utils.h>
struct simple_card_data {
struct snd_soc_card snd_card;
struct snd_soc_codec_conf codec_conf;
struct asoc_simple_dai *dai_props;
struct snd_soc_dai_link *dai_link;
u32 convert_rate;
u32 convert_channels;
};
#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 DAI "sound-dai"
#define CELL "#sound-dai-cells"
#define PREFIX "simple-audio-card,"
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 asoc_simple_dai *dai_props =
simple_priv_to_props(priv, rtd->num);
return clk_prepare_enable(dai_props->clk);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kuninori Morimoto | 53 | 98.15% | 5 | 83.33% |
| Mengdong Lin | 1 | 1.85% | 1 | 16.67% |
| Total | 54 | 100.00% | 6 | 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 asoc_simple_dai *dai_props =
simple_priv_to_props(priv, rtd->num);
clk_disable_unprepare(dai_props->clk);
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Kuninori Morimoto | 52 | 98.11% | 5 | 83.33% |
| Mengdong Lin | 1 | 1.89% | 1 | 16.67% |
| Total | 53 | 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,
};
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 asoc_simple_dai *dai_props;
int num = rtd->num;
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;
return asoc_simple_card_init_dai(dai, dai_props);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kuninori Morimoto | 84 | 98.82% | 7 | 87.50% |
| Mengdong Lin | 1 | 1.18% | 1 | 12.50% |
| Total | 85 | 100.00% | 8 | 100.00% |
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 snd_interval *rate = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_RATE);
struct snd_interval *channels = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_CHANNELS);
if (priv->convert_rate)
rate->min =
rate->max = priv->convert_rate;
if (priv->convert_channels)
channels->min =
channels->max = priv->convert_channels;
return 0;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Kuninori Morimoto | 91 | 100.00% | 6 | 100.00% |
| Total | 91 | 100.00% | 6 | 100.00% |
static int asoc_simple_card_dai_link_of(struct device_node *np,
struct simple_card_data *priv,
unsigned int daifmt,
int idx, bool is_fe)
{
struct device *dev = simple_priv_to_dev(priv);
struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx);
struct asoc_simple_dai *dai_props = simple_priv_to_props(priv, idx);
int ret;
if (is_fe) {
int is_single_links = 0;
/* BE is dummy */
dai_link->codec_of_node = NULL;
dai_link->codec_dai_name = "snd-soc-dummy-dai";
dai_link->codec_name = "snd-soc-dummy";
/* FE settings */
dai_link->dynamic = 1;
dai_link->dpcm_merged_format = 1;
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);
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 {
/* 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;
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);
if (ret < 0)
return ret;
ret = asoc_simple_card_set_dailink_name(dev, dai_link,
"be.%s",
dai_link->codec_dai_name);
if (ret < 0)
return ret;
snd_soc_of_parse_audio_prefix(&priv->snd_card,
&priv->codec_conf,
dai_link->codec_of_node,
PREFIX "prefix");
}
ret = snd_soc_of_parse_tdm_slot(np,
&dai_props->tx_slot_mask,
&dai_props->rx_slot_mask,
&dai_props->slots,
&dai_props->slot_width);
if (ret)
return ret;
ret = asoc_simple_card_canonicalize_dailink(dai_link);
if (ret < 0)
return ret;
dai_link->dai_fmt = daifmt;
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;
dev_dbg(dev, "\t%s / %04x / %d\n",
dai_link->name,
dai_link->dai_fmt,
dai_props->sysclk);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kuninori Morimoto | 408 | 100.00% | 19 | 100.00% |
| Total | 408 | 100.00% | 19 | 100.00% |
static int asoc_simple_card_parse_of(struct device_node *node,
struct simple_card_data *priv)
{
struct device *dev = simple_priv_to_dev(priv);
struct device_node *np;
unsigned int daifmt = 0;
bool is_fe;
int ret, i;
if (!node)
return -EINVAL;
ret = snd_soc_of_parse_audio_routing(&priv->snd_card, PREFIX "routing");
if (ret < 0)
return ret;
/* sampling rate convert */
of_property_read_u32(node, PREFIX "convert-rate", &priv->convert_rate);
/* channels transfer */
of_property_read_u32(node, PREFIX "convert-channels", &priv->convert_channels);
/* find 1st codec */
np = of_get_child_by_name(node, PREFIX "codec");
if (!np)
return -ENODEV;
ret = asoc_simple_card_parse_daifmt(dev, node, np, PREFIX, &daifmt);
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;
ret = asoc_simple_card_dai_link_of(np, priv, daifmt, i, is_fe);
if (ret < 0)
return ret;
i++;
}
ret = asoc_simple_card_parse_card_name(&priv->snd_card, PREFIX);
if (ret < 0)
return ret;
dev_dbg(dev, "New card: %s\n",
priv->snd_card.name ? priv->snd_card.name : "");
dev_dbg(dev, "convert_rate %d\n", priv->convert_rate);
dev_dbg(dev, "convert_channels %d\n", priv->convert_channels);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kuninori Morimoto | 277 | 100.00% | 10 | 100.00% |
| Total | 277 | 100.00% | 10 | 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 asoc_simple_dai *dai_props;
struct device *dev = &pdev->dev;
struct device_node *np = pdev->dev.of_node;
int num, ret;
/* Allocate the private data */
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
num = of_get_child_count(np);
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;
priv->snd_card.codec_conf = &priv->codec_conf;
priv->snd_card.num_configs = 1;
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;
}
snd_soc_card_set_drvdata(&priv->snd_card, priv);
ret = devm_snd_soc_register_card(&pdev->dev, &priv->snd_card);
if (ret >= 0)
return ret;
err:
asoc_simple_card_clean_reference(&priv->snd_card);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kuninori Morimoto | 279 | 100.00% | 10 | 100.00% |
| Total | 279 | 100.00% | 10 | 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 |
| Kuninori Morimoto | 27 | 100.00% | 3 | 100.00% |
| Total | 27 | 100.00% | 3 | 100.00% |
static const struct of_device_id asoc_simple_of_match[] = {
{ .compatible = "renesas,rsrc-card", },
{ .compatible = "simple-scu-audio-card", },
{},
};
MODULE_DEVICE_TABLE(of, asoc_simple_of_match);
static struct platform_driver asoc_simple_card = {
.driver = {
.name = "simple-scu-audio-card",
.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-scu-card");
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("ASoC Simple SCU Sound Card");
MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Kuninori Morimoto | 1477 | 99.73% | 32 | 94.12% |
| Mengdong Lin | 3 | 0.20% | 1 | 2.94% |
| Julia Lawall | 1 | 0.07% | 1 | 2.94% |
| Total | 1481 | 100.00% | 34 | 100.00% |
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