336 lines
9.1 KiB
C
336 lines
9.1 KiB
C
|
/*
|
||
|
|
* sound\soc\sunxi\sun8iw19-snddaudio.c
|
||
|
|
* (C) Copyright 2014-2019
|
||
|
|
* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
|
||
|
|
* yumingfeng <yumingfeng@allwinnertech.com>
|
||
|
|
*
|
||
|
|
* some simple description for this code
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public License as
|
||
|
|
* published by the Free Software Foundation; either version 2 of
|
||
|
|
* the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/clk.h>
|
||
|
|
#include <linux/mutex.h>
|
||
|
|
#include <sound/pcm.h>
|
||
|
|
#include <sound/soc.h>
|
||
|
|
#include <sound/pcm_params.h>
|
||
|
|
#include <sound/soc-dapm.h>
|
||
|
|
#include <linux/io.h>
|
||
|
|
#include <linux/of.h>
|
||
|
|
#include <linux/debugfs.h>
|
||
|
|
#include "sun8iw19-snddaudio.h"
|
||
|
|
|
||
|
|
static atomic_t daudio_count = ATOMIC_INIT(-1);
|
||
|
|
|
||
|
|
static int sunxi_snddaudio_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 snd_soc_card *card = rtd->card;
|
||
|
|
unsigned int freq, clk_div;
|
||
|
|
int ret;
|
||
|
|
#ifdef USE_ASOC_FMT_SETTING
|
||
|
|
struct sunxi_snddaudio_priv *snddaudio_priv =
|
||
|
|
snd_soc_card_get_drvdata(card);
|
||
|
|
struct platform_data *pdata = &(snddaudio_priv->pdata);
|
||
|
|
#endif
|
||
|
|
|
||
|
|
switch (params_rate(params)) {
|
||
|
|
case 8000:
|
||
|
|
case 16000:
|
||
|
|
case 32000:
|
||
|
|
case 64000:
|
||
|
|
case 12000:
|
||
|
|
case 24000:
|
||
|
|
case 48000:
|
||
|
|
case 96000:
|
||
|
|
case 192000:
|
||
|
|
freq = 24576000;
|
||
|
|
break;
|
||
|
|
case 11025:
|
||
|
|
case 22050:
|
||
|
|
case 44100:
|
||
|
|
case 88200:
|
||
|
|
case 176400:
|
||
|
|
freq = 22579200;
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
dev_err(card->dev, "unsupport params rate:%d\n", freq);
|
||
|
|
return -EINVAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* set platform clk source freq and set the mode as daudio or pcm */
|
||
|
|
ret = snd_soc_dai_set_sysclk(cpu_dai, 0, freq, 0);
|
||
|
|
if (ret < 0) {
|
||
|
|
dev_warn(card->dev, "cpu_dai set sysclk failed\n");
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* set codec clk source freq and set the mode as daudio or pcm */
|
||
|
|
ret = snd_soc_dai_set_sysclk(codec_dai, 0, freq, 0);
|
||
|
|
if (ret < 0)
|
||
|
|
dev_warn(card->dev, "codec_dai set sysclk failed\n");
|
||
|
|
|
||
|
|
ret = snd_soc_dai_set_pll(codec_dai, 0, 0, freq, freq);
|
||
|
|
if (ret < 0)
|
||
|
|
dev_warn(card->dev, "codec_dai set set_pll failed.\n");
|
||
|
|
|
||
|
|
/*
|
||
|
|
* SND_SOC_DAIFMT_I2S
|
||
|
|
* SND_SOC_DAIFMT_NB_NF
|
||
|
|
* SND_SOC_DAIFMT_CBS_CFS
|
||
|
|
*/
|
||
|
|
#ifdef USE_ASOC_FMT_SETTING
|
||
|
|
/* set codec dai fmt */
|
||
|
|
ret = snd_soc_dai_set_fmt(codec_dai, pdata->audio_format
|
||
|
|
| (pdata->signal_inversion << SND_SOC_DAIFMT_SIG_SHIFT)
|
||
|
|
| (pdata->daudio_master << SND_SOC_DAIFMT_MASTER_SHIFT));
|
||
|
|
if (ret < 0)
|
||
|
|
dev_warn(card->dev, "codec dai set fmt failed\n");
|
||
|
|
|
||
|
|
/* set cpu dai fmt */
|
||
|
|
ret = snd_soc_dai_set_fmt(cpu_dai, pdata->audio_format
|
||
|
|
| (pdata->signal_inversion << SND_SOC_DAIFMT_SIG_SHIFT)
|
||
|
|
| (pdata->daudio_master << SND_SOC_DAIFMT_MASTER_SHIFT));
|
||
|
|
if (ret < 0)
|
||
|
|
dev_warn(card->dev, "cpu dai set fmt failed\n");
|
||
|
|
#else
|
||
|
|
/* set codec dai fmt */
|
||
|
|
ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
|
||
|
|
SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
|
||
|
|
if (ret < 0)
|
||
|
|
dev_warn(card->dev, "codec dai set fmt failed\n");
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* set system clk div */
|
||
|
|
clk_div = freq / params_rate(params);
|
||
|
|
ret = snd_soc_dai_set_clkdiv(cpu_dai, 0, clk_div);
|
||
|
|
if (ret < 0) {
|
||
|
|
dev_warn(card->dev, "cpu_dai set clkdiv failed\n");
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = snd_soc_dai_set_clkdiv(codec_dai, 0, clk_div);
|
||
|
|
if (ret < 0)
|
||
|
|
dev_warn(card->dev, "codec_dai set clkdiv failed\n");
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct snd_soc_ops sunxi_snddaudio_ops = {
|
||
|
|
.hw_params = sunxi_snddaudio_hw_params,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct snd_soc_dai_link sunxi_snddaudio_dai_link = {
|
||
|
|
.name = "sysvoice",
|
||
|
|
.stream_name = "SUNXI-AUDIO",
|
||
|
|
.cpu_dai_name = "sunxi-daudio",
|
||
|
|
.platform_name = "sunxi-daudio",
|
||
|
|
.codec_dai_name = "snd-soc-dummy-dai",
|
||
|
|
.codec_name = "snd-soc-dummy",
|
||
|
|
.ops = &sunxi_snddaudio_ops,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct snd_soc_card snd_soc_sunxi_snddaudio = {
|
||
|
|
.name = "snddaudio",
|
||
|
|
.owner = THIS_MODULE,
|
||
|
|
};
|
||
|
|
|
||
|
|
static int sunxi_snddaudio_dev_probe(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
struct device_node *np = pdev->dev.of_node;
|
||
|
|
struct snd_soc_dai_link *dai_link;
|
||
|
|
struct snd_soc_card *card;
|
||
|
|
struct sunxi_snddaudio_priv *snddaudio_priv;
|
||
|
|
char name[30] = "snddaudio";
|
||
|
|
unsigned int temp_val;
|
||
|
|
int ret = 0;
|
||
|
|
|
||
|
|
snddaudio_priv = devm_kzalloc(&pdev->dev,
|
||
|
|
sizeof(struct sunxi_snddaudio_priv), GFP_KERNEL);
|
||
|
|
if (!snddaudio_priv) {
|
||
|
|
dev_err(&pdev->dev, "Can't malloc the sunxi_snddaudio_priv!\n");
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
snddaudio_priv->card = devm_kzalloc(&pdev->dev,
|
||
|
|
sizeof(struct snd_soc_card),
|
||
|
|
GFP_KERNEL);
|
||
|
|
if (!snddaudio_priv->card) {
|
||
|
|
dev_err(&pdev->dev, "Can't malloc the snd_soc_card!\n");
|
||
|
|
goto err_kfree_sndaudio_priv;
|
||
|
|
}
|
||
|
|
|
||
|
|
card = snddaudio_priv->card;
|
||
|
|
memcpy(card, &snd_soc_sunxi_snddaudio, sizeof(struct snd_soc_card));
|
||
|
|
|
||
|
|
card->dev = &pdev->dev;
|
||
|
|
|
||
|
|
dai_link = devm_kzalloc(&pdev->dev,
|
||
|
|
sizeof(struct snd_soc_dai_link), GFP_KERNEL);
|
||
|
|
if (!dai_link) {
|
||
|
|
ret = -ENOMEM;
|
||
|
|
goto err_kfree_card;
|
||
|
|
}
|
||
|
|
memcpy(dai_link, &sunxi_snddaudio_dai_link,
|
||
|
|
sizeof(struct snd_soc_dai_link));
|
||
|
|
card->dai_link = dai_link;
|
||
|
|
card->num_links = 1;
|
||
|
|
|
||
|
|
ret = of_property_read_u32(np, "audio_format", &temp_val);
|
||
|
|
if (ret < 0) {
|
||
|
|
dev_warn(&pdev->dev, "audio_format config missing or invalid\n");
|
||
|
|
snddaudio_priv->pdata.audio_format = 1;
|
||
|
|
} else {
|
||
|
|
snddaudio_priv->pdata.audio_format = temp_val;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = of_property_read_u32(np, "signal_inversion", &temp_val);
|
||
|
|
if (ret < 0) {
|
||
|
|
dev_warn(&pdev->dev, "signal_inversion config missing or invalid\n");
|
||
|
|
snddaudio_priv->pdata.signal_inversion = 1;
|
||
|
|
} else {
|
||
|
|
snddaudio_priv->pdata.signal_inversion = temp_val;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = of_property_read_u32(np, "daudio_master", &temp_val);
|
||
|
|
if (ret < 0) {
|
||
|
|
dev_warn(&pdev->dev, "daudio_master config missing or invalid\n");
|
||
|
|
/*
|
||
|
|
* default setting SND_SOC_DAIFMT_CBS_CFS mode
|
||
|
|
* codec clk & FRM slave
|
||
|
|
*/
|
||
|
|
snddaudio_priv->pdata.daudio_master = 4;
|
||
|
|
} else {
|
||
|
|
snddaudio_priv->pdata.daudio_master = temp_val;
|
||
|
|
}
|
||
|
|
|
||
|
|
dai_link->cpu_dai_name = NULL;
|
||
|
|
dai_link->cpu_of_node = of_parse_phandle(np,
|
||
|
|
"sunxi,daudio0-controller", 0);
|
||
|
|
if (dai_link->cpu_of_node)
|
||
|
|
goto cpu_node_find;
|
||
|
|
|
||
|
|
dai_link->cpu_of_node = of_parse_phandle(np,
|
||
|
|
"sunxi,daudio1-controller", 0);
|
||
|
|
if (dai_link->cpu_of_node)
|
||
|
|
goto cpu_node_find;
|
||
|
|
|
||
|
|
dai_link->cpu_of_node = of_parse_phandle(np,
|
||
|
|
"sunxi,daudio-controller", 0);
|
||
|
|
if (dai_link->cpu_of_node)
|
||
|
|
goto cpu_node_find;
|
||
|
|
|
||
|
|
dev_err(card->dev, "Property 'sunxi,daudio-controller' missing\n");
|
||
|
|
|
||
|
|
goto err_kfree_link;
|
||
|
|
|
||
|
|
cpu_node_find:
|
||
|
|
dai_link->cpu_dai_name = NULL;
|
||
|
|
dai_link->platform_name = NULL;
|
||
|
|
dai_link->platform_of_node =
|
||
|
|
dai_link->cpu_of_node;
|
||
|
|
|
||
|
|
ret = of_property_read_string(np, "sunxi,snddaudio-codec",
|
||
|
|
&dai_link->codec_name);
|
||
|
|
/*
|
||
|
|
* As we setting codec & codec_dai in dtb, we just setting the
|
||
|
|
* codec & codec_dai in the dai_link. But if we just not setting,
|
||
|
|
* we then using the snd-soc-dummy as the codec & codec_dai to
|
||
|
|
* construct the snd-card for audio playback & capture.
|
||
|
|
*/
|
||
|
|
if (!ret) {
|
||
|
|
ret = of_property_read_string(np, "sunxi,snddaudio-codec-dai",
|
||
|
|
&dai_link->codec_dai_name);
|
||
|
|
if (ret < 0) {
|
||
|
|
dev_err(card->dev, "codec_dai name invaild in dtb\n");
|
||
|
|
ret = -EINVAL;
|
||
|
|
goto err_kfree_link;
|
||
|
|
}
|
||
|
|
sprintf(name+3, "%s", dai_link->codec_name);
|
||
|
|
} else {
|
||
|
|
if (dai_link->cpu_of_node && of_property_read_u32(
|
||
|
|
dai_link->cpu_of_node, "tdm_num", &temp_val) >= 0)
|
||
|
|
sprintf(name+9, "%u", temp_val);
|
||
|
|
else
|
||
|
|
sprintf(name+9, "%d", atomic_inc_return(&daudio_count));
|
||
|
|
}
|
||
|
|
|
||
|
|
card->name = name;
|
||
|
|
dev_info(card->dev, "codec: %s, codec_dai: %s.\n",
|
||
|
|
dai_link->codec_name,
|
||
|
|
dai_link->codec_dai_name);
|
||
|
|
|
||
|
|
snd_soc_card_set_drvdata(card, snddaudio_priv);
|
||
|
|
|
||
|
|
ret = snd_soc_register_card(card);
|
||
|
|
if (ret) {
|
||
|
|
dev_err(card->dev, "snd_soc_register_card failed\n");
|
||
|
|
goto err_kfree_link;
|
||
|
|
}
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
err_kfree_link:
|
||
|
|
devm_kfree(&pdev->dev, card->dai_link);
|
||
|
|
err_kfree_card:
|
||
|
|
devm_kfree(&pdev->dev, card);
|
||
|
|
err_kfree_sndaudio_priv:
|
||
|
|
devm_kfree(&pdev->dev, snddaudio_priv);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int sunxi_snddaudio_dev_remove(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
struct snd_soc_card *card = platform_get_drvdata(pdev);
|
||
|
|
struct sunxi_snddaudio_priv *snddaudio_priv;
|
||
|
|
|
||
|
|
snddaudio_priv = snd_soc_card_get_drvdata(card);
|
||
|
|
|
||
|
|
snd_soc_unregister_card(card);
|
||
|
|
devm_kfree(&pdev->dev, card->dai_link);
|
||
|
|
devm_kfree(&pdev->dev, card);
|
||
|
|
devm_kfree(&pdev->dev, snddaudio_priv);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct of_device_id sunxi_snddaudio_of_match[] = {
|
||
|
|
{ .compatible = "allwinner,sunxi-daudio0-machine", },
|
||
|
|
{ .compatible = "allwinner,sunxi-daudio1-machine", },
|
||
|
|
{},
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct platform_driver sunxi_snddaudio_driver = {
|
||
|
|
.driver = {
|
||
|
|
.name = "snddaudio",
|
||
|
|
.owner = THIS_MODULE,
|
||
|
|
.pm = &snd_soc_pm_ops,
|
||
|
|
.of_match_table = sunxi_snddaudio_of_match,
|
||
|
|
},
|
||
|
|
.probe = sunxi_snddaudio_dev_probe,
|
||
|
|
.remove = sunxi_snddaudio_dev_remove,
|
||
|
|
};
|
||
|
|
|
||
|
|
static int __init sunxi_snddaudio_driver_init(void)
|
||
|
|
{
|
||
|
|
return platform_driver_register(&sunxi_snddaudio_driver);
|
||
|
|
}
|
||
|
|
late_initcall(sunxi_snddaudio_driver_init);
|
||
|
|
|
||
|
|
static void __exit sunxi_snddaudio_driver_exit(void)
|
||
|
|
{
|
||
|
|
platform_driver_unregister(&sunxi_snddaudio_driver);
|
||
|
|
}
|
||
|
|
module_exit(sunxi_snddaudio_driver_exit);
|
||
|
|
|
||
|
|
MODULE_AUTHOR("yumingfeng <yumingfeng@allwinnertech.com>");
|
||
|
|
MODULE_DESCRIPTION("SUNXI snddaudio ALSA SoC Audio Card Driver");
|
||
|
|
MODULE_LICENSE("GPL");
|