389 lines
10 KiB
C
389 lines
10 KiB
C
/*
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* sound\soc\sunxi\sun50iw11\sunxi-snddmic.c
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* (C) Copyright 2019-2025
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
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* yumingfeng <yumingfeng@allwinnertech.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 <sound/pcm.h>
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#include <sound/soc.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/io.h>
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#include <linux/of.h>
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#ifdef CONFIG_SND_SUN50IW11_MAD
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#include "sunxi-mad.h"
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#endif
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#include "sunxi-snddmic.h"
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static int sunxi_snddmic_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 *cpu_dai = rtd->cpu_dai;
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int ret = 0;
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int freq;
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switch (params_rate(params)) {
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case 8000:
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case 16000:
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case 32000:
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case 12000:
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case 24000:
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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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case 88200:
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case 176400:
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freq = 22579200;
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break;
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default:
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pr_debug("invalid rate setting\n");
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return -EINVAL;
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}
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ret = snd_soc_dai_set_sysclk(cpu_dai, 0, freq, 0);
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if (ret < 0) {
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dev_err(rtd->dev, "invalid rate setting.\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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#ifdef CONFIG_SND_SUN50IW11_MAD
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static int sunxi_snddmic_mad_startup(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct sunxi_snddmic_priv *snddmic_priv =
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snd_soc_card_get_drvdata(rtd->card);
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if (snddmic_priv->mad_priv.mad_bind == 1)
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rtd->dai_link->ignore_suspend = 1;
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return 0;
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}
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#endif
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/*enable the snddmic suspend */
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static int sunxi_snddmic_startup(struct snd_pcm_substream *substream)
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{
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#ifdef CONFIG_SND_SUN50IW11_MAD
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return sunxi_snddmic_mad_startup(substream);
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#else
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return 0;
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#endif
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}
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#ifdef CONFIG_SND_SUN50IW11_MAD
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/*disable the snddmic suspend */
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static void sunxi_snddmic_mad_shutdown(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct sunxi_snddmic_priv *snddmic_priv =
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snd_soc_card_get_drvdata(rtd->card);
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if (snddmic_priv->mad_priv.mad_bind == 1)
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rtd->dai_link->ignore_suspend = 0;
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}
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#endif
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static void sunxi_snddmic_shutdown(struct snd_pcm_substream *substream)
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{
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#ifdef CONFIG_SND_SUN50IW11_MAD
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sunxi_snddmic_mad_shutdown(substream);
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#endif
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}
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#ifdef CONFIG_SND_SUN50IW11_MAD
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/*lpsd channel sel*/
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static int sunxi_snddmic_set_lpsd_chan(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
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struct sunxi_snddmic_priv *snddmic_priv =
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snd_soc_card_get_drvdata(card);
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struct sunxi_mad_priv *mad_priv = &snddmic_priv->mad_priv;
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mad_priv->lpsd_chan_sel = ucontrol->value.enumerated.item[0];
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sunxi_lpsd_chan_sel(mad_priv->lpsd_chan_sel);
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return 0;
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}
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static int sunxi_snddmic_get_lpsd_chan(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
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struct sunxi_snddmic_priv *snddmic_priv =
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snd_soc_card_get_drvdata(card);
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struct sunxi_mad_priv *mad_priv = &snddmic_priv->mad_priv;
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ucontrol->value.enumerated.item[0] = mad_priv->lpsd_chan_sel;
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return 0;
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}
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static const char * const lpsd_chan_sel_function[] = {"0th_chan", "1st_chan",
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"2nd_chan", "3rd_chan", "4th_chan", "5th_chan",
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"6th_chan", "7th_chan", "8th_chan"};
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static const struct soc_enum lpsd_chan_sel_enum[] = {
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SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(lpsd_chan_sel_function),
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lpsd_chan_sel_function),
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};
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/*mad_standby channel sel*/
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static int sunxi_snddmic_set_mad_standby_chan(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
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struct sunxi_snddmic_priv *snddmic_priv =
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snd_soc_card_get_drvdata(card);
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struct sunxi_mad_priv *mad_priv = &snddmic_priv->mad_priv;
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mad_priv->mad_standby_chan_sel = ucontrol->value.enumerated.item[0];
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sunxi_mad_standby_chan_sel(mad_priv->mad_standby_chan_sel);
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return 0;
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}
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static int sunxi_snddmic_get_mad_standby_chan(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
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struct sunxi_snddmic_priv *snddmic_priv =
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snd_soc_card_get_drvdata(card);
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struct sunxi_mad_priv *mad_priv = &snddmic_priv->mad_priv;
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ucontrol->value.enumerated.item[0] = mad_priv->mad_standby_chan_sel;
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return 0;
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}
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/* FIXME: fix the RD_POINTER at "Zero_chan" mode */
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static const char * const mad_standby_chan_sel_function[] = {
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"Zero_Chan", "Two_Chan", "Four_Chan",
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};
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static const struct soc_enum mad_standby_chan_sel_enum[] = {
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SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(mad_standby_chan_sel_function),
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mad_standby_chan_sel_function),
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};
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/*mad_bind config*/
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static int sunxi_snddmic_set_mad_bind(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
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struct sunxi_snddmic_priv *snddmic_priv =
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snd_soc_card_get_drvdata(card);
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snddmic_priv->mad_priv.mad_bind = ucontrol->value.enumerated.item[0];
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return 0;
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}
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static int sunxi_snddmic_get_mad_bind(struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
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struct sunxi_snddmic_priv *snddmic_priv =
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snd_soc_card_get_drvdata(card);
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ucontrol->value.enumerated.item[0] = snddmic_priv->mad_priv.mad_bind;
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return 0;
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}
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static const char *mad_bind_function[] = {"mad_unbind", "mad_bind"};
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static const struct soc_enum mad_bind_enum[] = {
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SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(mad_bind_function),
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mad_bind_function),
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};
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/* dmic machine kcontrols */
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static const struct snd_kcontrol_new sunxi_snddmic_controls[] = {
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SOC_ENUM_EXT("dmic bind mad function", mad_bind_enum[0],
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sunxi_snddmic_get_mad_bind, sunxi_snddmic_set_mad_bind),
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SOC_ENUM_EXT("lpsd channel sel function", lpsd_chan_sel_enum[0],
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sunxi_snddmic_get_lpsd_chan, sunxi_snddmic_set_lpsd_chan),
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SOC_ENUM_EXT("mad standby channel sel function",
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mad_standby_chan_sel_enum[0],
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sunxi_snddmic_get_mad_standby_chan,
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sunxi_snddmic_set_mad_standby_chan),
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};
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#endif
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static struct snd_soc_ops sunxi_snddmic_ops = {
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.hw_params = sunxi_snddmic_hw_params,
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.startup = sunxi_snddmic_startup,
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.shutdown = sunxi_snddmic_shutdown,
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};
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#ifdef CONFIG_SND_SUN50IW11_MAD
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static int sunxi_snddmic_mad_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct sunxi_snddmic_priv *snddmic_priv =
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snd_soc_card_get_drvdata(rtd->card);
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snddmic_priv->mad_priv.mad_bind = 0;
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snddmic_priv->mad_priv.lpsd_chan_sel = 0;
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snddmic_priv->mad_priv.mad_standby_chan_sel = 1;
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return 0;
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}
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#endif
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static int sunxi_snddmic_init(struct snd_soc_pcm_runtime *rtd)
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{
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#ifdef CONFIG_SND_SUN50IW11_MAD
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sunxi_snddmic_mad_init(rtd);
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#endif
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return 0;
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}
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static struct snd_soc_dai_link sunxi_snddmic_dai_link = {
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.name = "DMIC",
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.stream_name = "SUNXI-DMIC",
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.codec_name = "dmic-codec",
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.codec_dai_name = "dmic-hifi",
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.ops = &sunxi_snddmic_ops,
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.init = sunxi_snddmic_init,
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.capture_only = 1,
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};
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static struct snd_soc_card snd_soc_sunxi_snddmic = {
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.name = "snddmic",
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.owner = THIS_MODULE,
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.dai_link = &sunxi_snddmic_dai_link,
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.num_links = 1,
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#ifdef CONFIG_SND_SUN50IW11_MAD
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.controls = sunxi_snddmic_controls,
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.num_controls = ARRAY_SIZE(sunxi_snddmic_controls),
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#endif
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};
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static int sunxi_snddmic_dev_probe(struct platform_device *pdev)
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{
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int ret = 0;
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struct snd_soc_card *card = &snd_soc_sunxi_snddmic;
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struct device_node *np = pdev->dev.of_node;
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struct sunxi_snddmic_priv *snddmic_priv;
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snddmic_priv = devm_kzalloc(&pdev->dev,
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sizeof(struct sunxi_snddmic_priv), GFP_KERNEL);
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if (!snddmic_priv) {
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dev_err(card->dev, "Can't malloc the sunxi_snddmic_priv!\n");
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return -ENOMEM;
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}
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snddmic_priv->card = card;
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card->dev = &pdev->dev;
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sunxi_snddmic_dai_link.cpu_dai_name = NULL;
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sunxi_snddmic_dai_link.cpu_of_node = of_parse_phandle(np,
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"sunxi,dmic-controller", 0);
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if (!sunxi_snddmic_dai_link.cpu_of_node) {
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dev_err(&pdev->dev, "Property 'sunxi,dmic-controller' missing or invalid\n");
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ret = -EINVAL;
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goto err_of_get_cpunode;
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}
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sunxi_snddmic_dai_link.platform_name = NULL;
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sunxi_snddmic_dai_link.platform_of_node =
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sunxi_snddmic_dai_link.cpu_of_node;
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snddmic_priv->codec_device = platform_device_alloc("dmic-codec", -1);
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if (!snddmic_priv->codec_device) {
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dev_err(&pdev->dev, "dmic codec alloc failed\n");
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ret = -ENOMEM;
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goto err_platform_dev_alloc;
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}
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ret = platform_device_add(snddmic_priv->codec_device);
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if (ret) {
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dev_err(&pdev->dev, "dmic codec add failed\n");
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ret = -EBUSY;
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goto err_platform_dev_add;
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}
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#ifdef CONFIG_SND_SUN50IW11_MAD
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snddmic_priv->mad_priv.mad_bind = 0;
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#ifdef MAD_CLK_ALWAYS_ON
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snddmic_priv->mad_priv.mad_clk_enable = 1;
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#else
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snddmic_priv->mad_priv.mad_clk_enable = 0;
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#endif
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snddmic_priv->mad_priv.stop_mad_reset = 0;
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mutex_init(&snddmic_priv->mad_priv.mad_clk_mutex);
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#endif
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snd_soc_card_set_drvdata(card, snddmic_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() fail: %d\n", ret);
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ret = -EBUSY;
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goto err_snd_register_card;
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}
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return ret;
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err_snd_register_card:
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platform_device_del(snddmic_priv->codec_device);
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err_platform_dev_add:
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platform_device_put(snddmic_priv->codec_device);
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err_platform_dev_alloc:
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err_of_get_cpunode:
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devm_kfree(&pdev->dev, snddmic_priv);
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return ret;
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}
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static int sunxi_snddmic_dev_remove(struct platform_device *pdev)
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{
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struct snd_soc_card *card = platform_get_drvdata(pdev);
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struct sunxi_snddmic_priv *snddmic_priv =
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snd_soc_card_get_drvdata(card);
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snd_soc_unregister_card(card);
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platform_device_del(snddmic_priv->codec_device);
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platform_device_put(snddmic_priv->codec_device);
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devm_kfree(&pdev->dev, snddmic_priv);
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return 0;
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}
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static const struct of_device_id sunxi_dmic_of_match[] = {
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{ .compatible = "allwinner,sunxi-dmic-machine", },
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{},
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};
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static struct platform_driver sunxi_dmic_driver = {
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.driver = {
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.name = "snddmic",
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.owner = THIS_MODULE,
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.of_match_table = sunxi_dmic_of_match,
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.pm = &snd_soc_pm_ops,
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},
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.probe = sunxi_snddmic_dev_probe,
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.remove = sunxi_snddmic_dev_remove,
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};
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module_platform_driver(sunxi_dmic_driver);
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MODULE_AUTHOR("yumingfeng <yumingfeng@allwinnertech.com>");
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MODULE_DESCRIPTION("SUNXI DMIC Machine ASoC driver");
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MODULE_ALIAS("platform:snddmic");
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MODULE_LICENSE("GPL");
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