486 lines
12 KiB
C
486 lines
12 KiB
C
/*
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* Intel Skylake I2S Machine Driver with MAXIM98357A
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* and NAU88L25
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*
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* Copyright (C) 2015, Intel Corporation. All rights reserved.
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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 version
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* 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <sound/core.h>
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#include <sound/jack.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include "../../codecs/nau8825.h"
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#define SKL_NUVOTON_CODEC_DAI "nau8825-hifi"
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#define SKL_MAXIM_CODEC_DAI "HiFi"
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static struct snd_soc_jack skylake_headset;
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static struct snd_soc_card skylake_audio_card;
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static inline struct snd_soc_dai *skl_get_codec_dai(struct snd_soc_card *card)
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{
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struct snd_soc_pcm_runtime *rtd;
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list_for_each_entry(rtd, &card->rtd_list, list) {
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if (!strncmp(rtd->codec_dai->name, SKL_NUVOTON_CODEC_DAI,
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strlen(SKL_NUVOTON_CODEC_DAI)))
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return rtd->codec_dai;
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}
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return NULL;
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}
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static int platform_clock_control(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *k, int event)
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{
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struct snd_soc_dapm_context *dapm = w->dapm;
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struct snd_soc_card *card = dapm->card;
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struct snd_soc_dai *codec_dai;
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int ret;
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codec_dai = skl_get_codec_dai(card);
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if (!codec_dai) {
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dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n");
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return -EIO;
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}
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if (SND_SOC_DAPM_EVENT_ON(event)) {
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ret = snd_soc_dai_set_sysclk(codec_dai,
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NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN);
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if (ret < 0) {
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dev_err(card->dev, "set sysclk err = %d\n", ret);
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return -EIO;
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}
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} else {
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ret = snd_soc_dai_set_sysclk(codec_dai,
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NAU8825_CLK_INTERNAL, 0, SND_SOC_CLOCK_IN);
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if (ret < 0) {
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dev_err(card->dev, "set sysclk err = %d\n", ret);
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return -EIO;
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}
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}
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return ret;
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}
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static const struct snd_kcontrol_new skylake_controls[] = {
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SOC_DAPM_PIN_SWITCH("Headphone Jack"),
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SOC_DAPM_PIN_SWITCH("Headset Mic"),
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SOC_DAPM_PIN_SWITCH("Spk"),
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};
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static const struct snd_soc_dapm_widget skylake_widgets[] = {
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SND_SOC_DAPM_HP("Headphone Jack", NULL),
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SND_SOC_DAPM_MIC("Headset Mic", NULL),
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SND_SOC_DAPM_SPK("Spk", NULL),
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SND_SOC_DAPM_MIC("SoC DMIC", NULL),
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SND_SOC_DAPM_SINK("WoV Sink"),
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SND_SOC_DAPM_SPK("DP", NULL),
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SND_SOC_DAPM_SPK("HDMI", NULL),
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SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
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platform_clock_control, SND_SOC_DAPM_PRE_PMU |
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SND_SOC_DAPM_POST_PMD),
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};
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static const struct snd_soc_dapm_route skylake_map[] = {
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/* HP jack connectors - unknown if we have jack detection */
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{ "Headphone Jack", NULL, "HPOL" },
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{ "Headphone Jack", NULL, "HPOR" },
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/* speaker */
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{ "Spk", NULL, "Speaker" },
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/* other jacks */
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{ "MIC", NULL, "Headset Mic" },
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{ "DMic", NULL, "SoC DMIC" },
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{"WoV Sink", NULL, "hwd_in sink"},
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{"HDMI", NULL, "hif5 Output"},
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{"DP", NULL, "hif6 Output"},
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/* CODEC BE connections */
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{ "HiFi Playback", NULL, "ssp0 Tx" },
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{ "ssp0 Tx", NULL, "codec0_out" },
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{ "Playback", NULL, "ssp1 Tx" },
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{ "ssp1 Tx", NULL, "codec1_out" },
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{ "codec0_in", NULL, "ssp1 Rx" },
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{ "ssp1 Rx", NULL, "Capture" },
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/* DMIC */
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{ "dmic01_hifi", NULL, "DMIC01 Rx" },
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{ "DMIC01 Rx", NULL, "DMIC AIF" },
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{ "hifi1", NULL, "iDisp Tx"},
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{ "iDisp Tx", NULL, "iDisp_out"},
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{ "Headphone Jack", NULL, "Platform Clock" },
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{ "Headset Mic", NULL, "Platform Clock" },
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};
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static int skylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd,
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struct snd_pcm_hw_params *params)
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{
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struct snd_interval *rate = hw_param_interval(params,
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SNDRV_PCM_HW_PARAM_RATE);
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struct snd_interval *channels = hw_param_interval(params,
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SNDRV_PCM_HW_PARAM_CHANNELS);
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struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
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/* The ADSP will covert the FE rate to 48k, stereo */
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rate->min = rate->max = 48000;
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channels->min = channels->max = 2;
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/* set SSP0 to 24 bit */
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snd_mask_none(fmt);
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snd_mask_set(fmt, SNDRV_PCM_FORMAT_S24_LE);
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return 0;
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}
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static int skylake_nau8825_codec_init(struct snd_soc_pcm_runtime *rtd)
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{
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int ret;
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struct snd_soc_codec *codec = rtd->codec;
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/*
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* Headset buttons map to the google Reference headset.
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* These can be configured by userspace.
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*/
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ret = snd_soc_card_jack_new(&skylake_audio_card, "Headset Jack",
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SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 |
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SND_JACK_BTN_2 | SND_JACK_BTN_3, &skylake_headset,
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NULL, 0);
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if (ret) {
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dev_err(rtd->dev, "Headset Jack creation failed %d\n", ret);
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return ret;
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}
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nau8825_enable_jack_detect(codec, &skylake_headset);
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snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC");
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snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "WoV Sink");
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return ret;
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}
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static int skylake_nau8825_fe_init(struct snd_soc_pcm_runtime *rtd)
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{
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struct snd_soc_dapm_context *dapm;
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struct snd_soc_component *component = rtd->cpu_dai->component;
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dapm = snd_soc_component_get_dapm(component);
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snd_soc_dapm_ignore_suspend(dapm, "Reference Capture");
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return 0;
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}
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static unsigned int rates[] = {
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48000,
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};
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static struct snd_pcm_hw_constraint_list constraints_rates = {
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.count = ARRAY_SIZE(rates),
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.list = rates,
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.mask = 0,
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};
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static unsigned int channels[] = {
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2,
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};
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static struct snd_pcm_hw_constraint_list constraints_channels = {
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.count = ARRAY_SIZE(channels),
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.list = channels,
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.mask = 0,
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};
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static int skl_fe_startup(struct snd_pcm_substream *substream)
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{
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struct snd_pcm_runtime *runtime = substream->runtime;
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/*
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* On this platform for PCM device we support,
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* 48Khz
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* stereo
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* 16 bit audio
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*/
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runtime->hw.channels_max = 2;
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snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
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&constraints_channels);
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runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
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snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
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snd_pcm_hw_constraint_list(runtime, 0,
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SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
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return 0;
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}
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static const struct snd_soc_ops skylake_nau8825_fe_ops = {
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.startup = skl_fe_startup,
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};
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static int skylake_nau8825_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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int ret;
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ret = snd_soc_dai_set_sysclk(codec_dai,
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NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN);
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if (ret < 0)
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dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret);
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return ret;
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}
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static struct snd_soc_ops skylake_nau8825_ops = {
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.hw_params = skylake_nau8825_hw_params,
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};
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static int skylake_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
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struct snd_pcm_hw_params *params)
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{
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struct snd_interval *channels = hw_param_interval(params,
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SNDRV_PCM_HW_PARAM_CHANNELS);
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if (params_channels(params) == 2)
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channels->min = channels->max = 2;
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else
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channels->min = channels->max = 4;
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return 0;
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}
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static unsigned int channels_dmic[] = {
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2, 4,
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};
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static struct snd_pcm_hw_constraint_list constraints_dmic_channels = {
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.count = ARRAY_SIZE(channels_dmic),
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.list = channels_dmic,
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.mask = 0,
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};
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static int skylake_dmic_startup(struct snd_pcm_substream *substream)
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{
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struct snd_pcm_runtime *runtime = substream->runtime;
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runtime->hw.channels_max = 4;
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snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
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&constraints_dmic_channels);
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return snd_pcm_hw_constraint_list(substream->runtime, 0,
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SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
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}
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static struct snd_soc_ops skylake_dmic_ops = {
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.startup = skylake_dmic_startup,
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};
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static unsigned int rates_16000[] = {
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16000,
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};
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static struct snd_pcm_hw_constraint_list constraints_16000 = {
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.count = ARRAY_SIZE(rates_16000),
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.list = rates_16000,
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};
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static int skylake_refcap_startup(struct snd_pcm_substream *substream)
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{
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return snd_pcm_hw_constraint_list(substream->runtime, 0,
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SNDRV_PCM_HW_PARAM_RATE,
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&constraints_16000);
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}
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static struct snd_soc_ops skylaye_refcap_ops = {
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.startup = skylake_refcap_startup,
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};
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/* skylake digital audio interface glue - connects codec <--> CPU */
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static struct snd_soc_dai_link skylake_dais[] = {
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/* Front End DAI links */
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{
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.name = "Skl Audio Port",
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.stream_name = "Audio",
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.cpu_dai_name = "System Pin",
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.platform_name = "0000:00:1f.3",
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.dynamic = 1,
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.codec_name = "snd-soc-dummy",
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.codec_dai_name = "snd-soc-dummy-dai",
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.nonatomic = 1,
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.init = skylake_nau8825_fe_init,
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.trigger = {
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SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
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.dpcm_playback = 1,
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.ops = &skylake_nau8825_fe_ops,
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},
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{
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.name = "Skl Audio Capture Port",
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.stream_name = "Audio Record",
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.cpu_dai_name = "System Pin",
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.platform_name = "0000:00:1f.3",
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.dynamic = 1,
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.codec_name = "snd-soc-dummy",
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.codec_dai_name = "snd-soc-dummy-dai",
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.nonatomic = 1,
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.trigger = {
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SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
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.dpcm_capture = 1,
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.ops = &skylake_nau8825_fe_ops,
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},
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{
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.name = "Skl Audio Reference cap",
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.stream_name = "Wake on Voice",
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.cpu_dai_name = "Reference Pin",
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.codec_name = "snd-soc-dummy",
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.codec_dai_name = "snd-soc-dummy-dai",
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.platform_name = "0000:00:1f.3",
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.init = NULL,
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.dpcm_capture = 1,
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.ignore_suspend = 1,
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.nonatomic = 1,
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.dynamic = 1,
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.ops = &skylaye_refcap_ops,
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},
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{
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.name = "Skl Audio DMIC cap",
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.stream_name = "dmiccap",
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.cpu_dai_name = "DMIC Pin",
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.codec_name = "snd-soc-dummy",
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.codec_dai_name = "snd-soc-dummy-dai",
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.platform_name = "0000:00:1f.3",
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.init = NULL,
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.dpcm_capture = 1,
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.nonatomic = 1,
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.dynamic = 1,
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.ops = &skylake_dmic_ops,
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},
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{
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.name = "Skl HDMI Port",
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.stream_name = "Hdmi",
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.cpu_dai_name = "HDMI Pin",
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.codec_name = "snd-soc-dummy",
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.codec_dai_name = "snd-soc-dummy-dai",
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.platform_name = "0000:00:1f.3",
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.dpcm_playback = 1,
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.init = NULL,
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.nonatomic = 1,
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.dynamic = 1,
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},
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/* Back End DAI links */
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{
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/* SSP0 - Codec */
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.name = "SSP0-Codec",
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.be_id = 0,
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.cpu_dai_name = "SSP0 Pin",
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.platform_name = "0000:00:1f.3",
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.no_pcm = 1,
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.codec_name = "MX98357A:00",
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.codec_dai_name = SKL_MAXIM_CODEC_DAI,
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.dai_fmt = SND_SOC_DAIFMT_I2S |
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SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS,
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.ignore_pmdown_time = 1,
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.be_hw_params_fixup = skylake_ssp_fixup,
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.dpcm_playback = 1,
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},
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{
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/* SSP1 - Codec */
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.name = "SSP1-Codec",
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.be_id = 0,
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.cpu_dai_name = "SSP1 Pin",
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.platform_name = "0000:00:1f.3",
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.no_pcm = 1,
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.codec_name = "i2c-10508825:00",
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.codec_dai_name = SKL_NUVOTON_CODEC_DAI,
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.init = skylake_nau8825_codec_init,
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS,
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.ignore_pmdown_time = 1,
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.be_hw_params_fixup = skylake_ssp_fixup,
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.ops = &skylake_nau8825_ops,
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.dpcm_playback = 1,
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.dpcm_capture = 1,
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},
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{
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.name = "dmic01",
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.be_id = 1,
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.cpu_dai_name = "DMIC01 Pin",
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.codec_name = "dmic-codec",
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.codec_dai_name = "dmic-hifi",
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.platform_name = "0000:00:1f.3",
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.be_hw_params_fixup = skylake_dmic_fixup,
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.ignore_suspend = 1,
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.dpcm_capture = 1,
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.no_pcm = 1,
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},
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{
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.name = "iDisp",
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.be_id = 3,
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.cpu_dai_name = "iDisp Pin",
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.codec_name = "ehdaudio0D2",
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.codec_dai_name = "intel-hdmi-hifi1",
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.platform_name = "0000:00:1f.3",
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.dpcm_playback = 1,
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.no_pcm = 1,
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},
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};
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/* skylake audio machine driver for SPT + NAU88L25 */
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static struct snd_soc_card skylake_audio_card = {
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.name = "sklnau8825max",
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.owner = THIS_MODULE,
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.dai_link = skylake_dais,
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.num_links = ARRAY_SIZE(skylake_dais),
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.controls = skylake_controls,
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.num_controls = ARRAY_SIZE(skylake_controls),
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.dapm_widgets = skylake_widgets,
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.num_dapm_widgets = ARRAY_SIZE(skylake_widgets),
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.dapm_routes = skylake_map,
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.num_dapm_routes = ARRAY_SIZE(skylake_map),
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.fully_routed = true,
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};
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static int skylake_audio_probe(struct platform_device *pdev)
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{
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skylake_audio_card.dev = &pdev->dev;
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return devm_snd_soc_register_card(&pdev->dev, &skylake_audio_card);
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}
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static struct platform_driver skylake_audio = {
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.probe = skylake_audio_probe,
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.driver = {
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.name = "skl_nau88l25_max98357a_i2s",
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.pm = &snd_soc_pm_ops,
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},
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};
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module_platform_driver(skylake_audio)
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/* Module information */
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MODULE_DESCRIPTION("Audio Machine driver-NAU88L25 & MAX98357A in I2S mode");
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MODULE_AUTHOR("Rohit Ainapure <rohit.m.ainapure@intel.com");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:skl_nau88l25_max98357a_i2s");
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