259 lines
6.5 KiB
C
259 lines
6.5 KiB
C
/*
|
|
* sound\soc\sunxi\sunxi-sndhdmi.c
|
|
* (C) Copyright 2014-2016
|
|
* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
|
|
* huangxin <huangxin@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 "sunxi-pcm.h"
|
|
|
|
static struct sunxi_hdmi_priv sunxi_tdmhdmi;
|
|
|
|
/*
|
|
* sun8iw6 sound machine:
|
|
* i2s0 -> sndi2s0, i2s1 -> snddi2s1,
|
|
* i2s2 -> sndhdmi, tdm -> snddaudio0.
|
|
*/
|
|
|
|
static int sunxi_hdmiaudio_set_audio_mode(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
sunxi_tdmhdmi.hdmi_format = ucontrol->value.integer.value[0];
|
|
return 0;
|
|
}
|
|
|
|
static int sunxi_hdmiaudio_get_audio_mode(struct snd_kcontrol *kcontrol,
|
|
struct snd_ctl_elem_value *ucontrol)
|
|
{
|
|
ucontrol->value.integer.value[0] = sunxi_tdmhdmi.hdmi_format;
|
|
return 0;
|
|
}
|
|
|
|
static const char *hdmiaudio_format_function[] = {"null", "pcm", "AC3",
|
|
"MPEG1", "MP3", "MPEG2", "AAC", "DTS", "ATRAC", "ONE_BIT_AUDIO",
|
|
"DOLBY_DIGITAL_PLUS", "DTS_HD", "MAT", "WMAPRO"};
|
|
|
|
static const struct soc_enum hdmiaudio_format_enum[] = {
|
|
SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(hdmiaudio_format_function),
|
|
hdmiaudio_format_function),
|
|
};
|
|
|
|
/* pcm dts ac3 Audio Mode Select */
|
|
static const struct snd_kcontrol_new sunxi_hdmiaudio_controls[] = {
|
|
SOC_ENUM_EXT("hdmi audio format Function", hdmiaudio_format_enum[0],
|
|
sunxi_hdmiaudio_get_audio_mode, sunxi_hdmiaudio_set_audio_mode),
|
|
};
|
|
|
|
static int sunxi_sndhdmi_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 *cpu_dai = rtd->cpu_dai;
|
|
struct snd_soc_card *card = rtd->card;
|
|
unsigned int freq;
|
|
unsigned int clk_div;
|
|
int ret;
|
|
#ifdef CONFIG_ARCH_SUN8IW6
|
|
unsigned long sample_rate = params_rate(params);
|
|
#endif
|
|
switch (params_rate(params)) {
|
|
case 8000:
|
|
case 16000:
|
|
case 32000:
|
|
case 64000:
|
|
case 128000:
|
|
case 12000:
|
|
case 24000:
|
|
case 48000:
|
|
case 96000:
|
|
case 192000:
|
|
#ifdef CONFIG_AHUB_FREQ_REQ
|
|
freq = 98304000;
|
|
#else
|
|
freq = 24576000;
|
|
#endif
|
|
break;
|
|
case 11025:
|
|
case 22050:
|
|
case 44100:
|
|
case 88200:
|
|
case 176400:
|
|
#ifdef CONFIG_AHUB_FREQ_REQ
|
|
freq = 90316800;
|
|
#else
|
|
freq = 22579200;
|
|
#endif
|
|
break;
|
|
default:
|
|
dev_err(card->dev, "unsupport freq\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/*set system clock source freq and set the mode as i2s0 or pcm*/
|
|
ret = snd_soc_dai_set_sysclk(cpu_dai, 0, freq, 0);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/*
|
|
* I2S mode normal bit clock + frame\codec clk & FRM slave
|
|
*/
|
|
ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S |
|
|
SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
clk_div = freq / params_rate(params);
|
|
#ifdef CONFIG_ARCH_SUN8IW6
|
|
ret = snd_soc_dai_set_clkdiv(cpu_dai, 0, sample_rate);
|
|
#else
|
|
ret = snd_soc_dai_set_clkdiv(cpu_dai, 0, clk_div);
|
|
#endif
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_ops sunxi_sndhdmi_ops = {
|
|
.hw_params = sunxi_sndhdmi_hw_params,
|
|
};
|
|
|
|
static int sunxi_sndhdmi_probe(struct snd_soc_card *card)
|
|
{
|
|
int ret;
|
|
|
|
ret = snd_soc_add_card_controls(card, sunxi_hdmiaudio_controls,
|
|
ARRAY_SIZE(sunxi_hdmiaudio_controls));
|
|
if (ret)
|
|
dev_warn(card->dev,
|
|
"Failed to register audio mode control.\n");
|
|
return 0;
|
|
}
|
|
|
|
static struct snd_soc_dai_link sunxi_sndhdmi_dai_link = {
|
|
.name = "HDMIAUDIO",
|
|
.stream_name = "SUNXI-HDMIAUDIO",
|
|
.cpu_dai_name = "sunxi-hdmiaudio.0",
|
|
.codec_dai_name = "audiohdmi-dai",
|
|
.platform_name = "sunxi-hdmiaudio-pcm-audio.0",
|
|
.codec_name = "sunxi-hdmiaudio-codec.0",
|
|
.ops = &sunxi_sndhdmi_ops,
|
|
};
|
|
|
|
static struct snd_soc_card snd_soc_sunxi_sndhdmi = {
|
|
.name = "sndhdmi",
|
|
.owner = THIS_MODULE,
|
|
.probe = sunxi_sndhdmi_probe,
|
|
.dai_link = &sunxi_sndhdmi_dai_link,
|
|
.num_links = 1,
|
|
};
|
|
|
|
static int sunxi_sndhdmi_dev_probe(struct platform_device *pdev)
|
|
{
|
|
struct snd_soc_card *card = &snd_soc_sunxi_sndhdmi;
|
|
struct device_node *np = pdev->dev.of_node;
|
|
int ret;
|
|
|
|
card->dev = &pdev->dev;
|
|
sunxi_tdmhdmi.hdmi_format = 1;
|
|
|
|
#ifdef CONFIG_SND_SUNXI_SOC_AHUB
|
|
sunxi_sndhdmi_dai_link.cpu_dai_name = NULL;
|
|
sunxi_sndhdmi_dai_link.cpu_of_node = of_parse_phandle(np,
|
|
"sunxi,cpudai-controller", 0);
|
|
if (!sunxi_sndhdmi_dai_link.cpu_of_node) {
|
|
dev_err(&pdev->dev, "Property 'sunxi,cpudai-controller' missing or invalid\n");
|
|
return -EINVAL;
|
|
}
|
|
sunxi_sndhdmi_dai_link.platform_name = "snd-soc-dummy";
|
|
#else
|
|
if (np) {
|
|
sunxi_sndhdmi_dai_link.cpu_dai_name = NULL;
|
|
sunxi_sndhdmi_dai_link.cpu_of_node = of_parse_phandle(np,
|
|
"sunxi,hdmi-controller", 0);
|
|
if (!sunxi_sndhdmi_dai_link.cpu_of_node) {
|
|
dev_err(&pdev->dev,
|
|
"Property 'sunxi,hdmi-controller' missing\n");
|
|
ret = -EINVAL;
|
|
}
|
|
sunxi_sndhdmi_dai_link.platform_name = NULL;
|
|
sunxi_sndhdmi_dai_link.platform_of_node =
|
|
sunxi_sndhdmi_dai_link.cpu_of_node;
|
|
} else {
|
|
dev_err(&pdev->dev, "hdmi dt node missing or invalid\n");
|
|
ret = -EINVAL;
|
|
}
|
|
#endif
|
|
snd_soc_card_set_drvdata(card, &sunxi_tdmhdmi);
|
|
ret = snd_soc_register_card(card);
|
|
if (ret) {
|
|
dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
|
|
ret);
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static int __exit sunxi_sndhdmi_dev_remove(struct platform_device *pdev)
|
|
{
|
|
struct snd_soc_card *card = platform_get_drvdata(pdev);
|
|
|
|
snd_soc_unregister_card(card);
|
|
return 0;
|
|
}
|
|
|
|
static const struct of_device_id sunxi_hdmi_of_match[] = {
|
|
{ .compatible = "allwinner,sunxi-hdmi-machine", },
|
|
{},
|
|
};
|
|
|
|
static struct platform_driver sunxi_hdmiaudio_driver = {
|
|
.driver = {
|
|
.name = "sndhdmi",
|
|
.owner = THIS_MODULE,
|
|
.of_match_table = sunxi_hdmi_of_match,
|
|
.pm = &snd_soc_pm_ops,
|
|
},
|
|
.probe = sunxi_sndhdmi_dev_probe,
|
|
.remove = __exit_p(sunxi_sndhdmi_dev_remove),
|
|
};
|
|
|
|
#ifdef CONFIG_ARCH_SUN50IW6
|
|
static int __init sunxi_hdmiaudio_driver_init(void)
|
|
{
|
|
return platform_driver_register(&sunxi_hdmiaudio_driver);
|
|
}
|
|
|
|
static void __exit sunxi_hdmiaudio_driver_exit(void)
|
|
{
|
|
platform_driver_unregister(&sunxi_hdmiaudio_driver);
|
|
}
|
|
|
|
late_initcall(sunxi_hdmiaudio_driver_init);
|
|
module_exit(sunxi_hdmiaudio_driver_exit);
|
|
#else
|
|
module_platform_driver(sunxi_hdmiaudio_driver);
|
|
#endif
|
|
|
|
MODULE_AUTHOR("wolfgang huang <huangjinhui@allwinnertech.com>");
|
|
MODULE_DESCRIPTION("SUNXI HDMI ASoC Machine driver");
|
|
MODULE_LICENSE("GPL");
|