/*
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* sound\soc\sunxi\sunx8iw11_sndcodec.c
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* (C) Copyright 2014-2017
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* allwinner Technology Co., Ltd. <www.allwinnertech.com>
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* huangxin <huangxin@allwinnertech.com>
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* wolfgang huang <huangjinhui@allwinnetech.com>
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*
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* some simple description for this code
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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*/
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#include <linux/module.h>
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#include <linux/clk.h>
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#include <linux/mutex.h>
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#include <linux/gpio.h>
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#include <linux/of_gpio.h>
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#include <linux/io.h>
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#include <linux/input.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <sound/jack.h>
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#include <linux/of.h>
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#include <sound/pcm_params.h>
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#include <sound/soc-dapm.h>
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#include <linux/delay.h>
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#include "sunxi_rw_func.h"
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struct sunxi_card_priv {
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int jack_gpio;
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int jack_invert; /* 0->high is plug_in, 1->high is plug_out */
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struct snd_soc_jack jack_detect;
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};
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static const struct snd_kcontrol_new sunxi_card_controls[] = {
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SOC_DAPM_PIN_SWITCH("Phoneout Speaker"),
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};
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static const struct snd_soc_dapm_widget sunxi_card_dapm_widgets[] = {
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SND_SOC_DAPM_MIC("Main Mic", NULL),
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SND_SOC_DAPM_SPK("Phoneout Speaker", NULL),
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SND_SOC_DAPM_LINE("LINEIN", NULL),
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};
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static const struct snd_soc_dapm_route sunxi_card_routes[] = {
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{"MainMic Bias", NULL, "Main Mic"},
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{"Phoneout Speaker", NULL, "PHONEOUTP"},
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{"Phoneout Speaker", NULL, "PHONEOUTN"},
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{"LINEINL", NULL, "LINEIN"},
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{"LINEINR", NULL, "LINEIN"},
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};
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/*
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* Card initialization
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*/
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static int sunxi_card_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_codec *codec = rtd->codec;
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snd_soc_dapm_disable_pin(&codec->component.dapm, "Phoneout Speaker");
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snd_soc_dapm_enable_pin(&codec->component.dapm, "LINEIN");
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snd_soc_dapm_enable_pin(&codec->component.dapm, "LINEOUT");
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snd_soc_dapm_sync(&codec->component.dapm);
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return 0;
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}
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static int sunxi_card_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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struct snd_soc_card *card = rtd->card;
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unsigned int freq;
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int ret;
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switch (params_rate(params)) {
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case 8000:
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case 12000:
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case 16000:
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case 24000:
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case 32000:
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case 48000:
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case 96000:
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case 192000:
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freq = 24576000;
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break;
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case 11025:
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case 22050:
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case 44100:
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freq = 22579200;
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break;
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default:
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dev_err(card->dev, "invalid rate setting\n");
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return -EINVAL;
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}
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ret = snd_soc_dai_set_sysclk(codec_dai, 0, freq, 0);
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if (ret < 0) {
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dev_err(card->dev, "set codec dai sysclk faided.\n");
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return ret;
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}
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return 0;
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}
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static struct snd_soc_ops sunxi_card_ops = {
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.hw_params = sunxi_card_hw_params,
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};
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static int sunxi_card_suspend(struct snd_soc_card *card)
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{
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return 0;
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}
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static int sunxi_card_resume(struct snd_soc_card *card)
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{
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return 0;
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}
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static struct snd_soc_dai_link sunxi_card_dai_link[] = {
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{
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.name = "audiocodec",
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.stream_name = "SUNXI-CODEC",
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.cpu_dai_name = "sunxi-internal-cpudai",
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.codec_dai_name = "sun8iw17codec",
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.platform_name = "sunxi-internal-cpudai",
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.codec_name = "sunxi-internal-codec",
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.init = sunxi_card_init,
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.ops = &sunxi_card_ops,
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},
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};
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static struct snd_soc_card snd_soc_sunxi_card = {
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.name = "audiocodec",
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.owner = THIS_MODULE,
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.dai_link = sunxi_card_dai_link,
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.num_links = ARRAY_SIZE(sunxi_card_dai_link),
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.controls = sunxi_card_controls,
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.num_controls = ARRAY_SIZE(sunxi_card_controls),
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.dapm_widgets = sunxi_card_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(sunxi_card_dapm_widgets),
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.dapm_routes = sunxi_card_routes,
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.num_dapm_routes = ARRAY_SIZE(sunxi_card_routes),
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.suspend_post = sunxi_card_suspend,
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.resume_post = sunxi_card_resume,
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};
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static int sunxi_card_dev_probe(struct platform_device *pdev)
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{
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int ret = 0;
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struct device_node *np = pdev->dev.of_node;
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struct snd_soc_card *card = &snd_soc_sunxi_card;
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struct sunxi_card_priv *priv;
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/* register the soc card */
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card->dev = &pdev->dev;
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priv = devm_kzalloc(&pdev->dev,
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sizeof(struct sunxi_card_priv), GFP_KERNEL);
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if (!priv)
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return -ENOMEM;
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sunxi_card_dai_link[0].cpu_dai_name = NULL;
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sunxi_card_dai_link[0].cpu_of_node = of_parse_phandle(np,
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"sunxi,cpudai-controller", 0);
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if (!sunxi_card_dai_link[0].cpu_of_node) {
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dev_err(&pdev->dev, "Property 'sunxi,cpudai-controller' missing or invalid\n");
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ret = -EINVAL;
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goto err_devm_kfree;
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} else {
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sunxi_card_dai_link[0].platform_name = NULL;
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sunxi_card_dai_link[0].platform_of_node =
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sunxi_card_dai_link[0].cpu_of_node;
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}
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sunxi_card_dai_link[0].codec_name = NULL;
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sunxi_card_dai_link[0].codec_of_node = of_parse_phandle(np,
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"sunxi,audio-codec", 0);
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if (!sunxi_card_dai_link[0].codec_of_node) {
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dev_err(&pdev->dev, "Property 'sunxi,audio-codec' missing or invalid\n");
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ret = -EINVAL;
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goto err_devm_kfree;
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}
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snd_soc_card_set_drvdata(card, priv);
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ret = snd_soc_register_card(card);
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if (ret) {
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dev_err(&pdev->dev, "snd_soc_register_card failed %d\n", ret);
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goto err_devm_kfree;
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}
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return 0;
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err_devm_kfree:
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devm_kfree(&pdev->dev, priv);
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return ret;
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}
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static int __exit sunxi_card_dev_remove(struct platform_device *pdev)
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{
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struct sunxi_card_priv *priv = dev_get_drvdata(&pdev->dev);
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devm_kfree(&pdev->dev, priv);
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return 0;
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}
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static const struct of_device_id sunxi_card_of_match[] = {
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{ .compatible = "allwinner,sunxi-codec-machine", },
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{},
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};
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static struct platform_driver sunxi_machine_driver = {
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.driver = {
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.name = "sunxi-codec-machine",
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.owner = THIS_MODULE,
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.pm = &snd_soc_pm_ops,
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.of_match_table = sunxi_card_of_match,
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},
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.probe = sunxi_card_dev_probe,
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.remove = __exit_p(sunxi_card_dev_remove),
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};
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module_platform_driver(sunxi_machine_driver);
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MODULE_AUTHOR("wolfgang huang <huangjinhui@allwinnertech.com>");
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MODULE_DESCRIPTION("SUNXI Codec Machine ASoC driver");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:sunxi-codec-machine");
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