/* * Intel Skylake I2S Machine Driver with MAXIM98357A * and NAU88L25 * * Copyright (C) 2015, Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License version * 2 as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include #include #include #include #include #include #include #include "../../codecs/nau8825.h" #include "../../codecs/hdac_hdmi.h" #define SKL_NUVOTON_CODEC_DAI "nau8825-hifi" #define SKL_MAXIM_CODEC_DAI "HiFi" static struct snd_soc_jack skylake_headset; static struct snd_soc_card skylake_audio_card; struct skl_hdmi_pcm { struct list_head head; struct snd_soc_dai *codec_dai; int device; }; struct skl_nau8825_private { struct list_head hdmi_pcm_list; }; enum { SKL_DPCM_AUDIO_PB = 0, SKL_DPCM_AUDIO_CP, SKL_DPCM_AUDIO_REF_CP, SKL_DPCM_AUDIO_DMIC_CP, SKL_DPCM_AUDIO_HDMI1_PB, SKL_DPCM_AUDIO_HDMI2_PB, SKL_DPCM_AUDIO_HDMI3_PB, }; static inline struct snd_soc_dai *skl_get_codec_dai(struct snd_soc_card *card) { struct snd_soc_pcm_runtime *rtd; list_for_each_entry(rtd, &card->rtd_list, list) { if (!strncmp(rtd->codec_dai->name, SKL_NUVOTON_CODEC_DAI, strlen(SKL_NUVOTON_CODEC_DAI))) return rtd->codec_dai; } return NULL; } static int platform_clock_control(struct snd_soc_dapm_widget *w, struct snd_kcontrol *k, int event) { struct snd_soc_dapm_context *dapm = w->dapm; struct snd_soc_card *card = dapm->card; struct snd_soc_dai *codec_dai; int ret; codec_dai = skl_get_codec_dai(card); if (!codec_dai) { dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n"); return -EIO; } if (SND_SOC_DAPM_EVENT_ON(event)) { ret = snd_soc_dai_set_sysclk(codec_dai, NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN); if (ret < 0) { dev_err(card->dev, "set sysclk err = %d\n", ret); return -EIO; } } else { ret = snd_soc_dai_set_sysclk(codec_dai, NAU8825_CLK_INTERNAL, 0, SND_SOC_CLOCK_IN); if (ret < 0) { dev_err(card->dev, "set sysclk err = %d\n", ret); return -EIO; } } return ret; } static const struct snd_kcontrol_new skylake_controls[] = { SOC_DAPM_PIN_SWITCH("Headphone Jack"), SOC_DAPM_PIN_SWITCH("Headset Mic"), SOC_DAPM_PIN_SWITCH("Spk"), }; static const struct snd_soc_dapm_widget skylake_widgets[] = { SND_SOC_DAPM_HP("Headphone Jack", NULL), SND_SOC_DAPM_MIC("Headset Mic", NULL), SND_SOC_DAPM_SPK("Spk", NULL), SND_SOC_DAPM_MIC("SoC DMIC", NULL), SND_SOC_DAPM_SPK("DP", NULL), SND_SOC_DAPM_SPK("HDMI", NULL), SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, platform_clock_control, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), }; static const struct snd_soc_dapm_route skylake_map[] = { /* HP jack connectors - unknown if we have jack detection */ { "Headphone Jack", NULL, "HPOL" }, { "Headphone Jack", NULL, "HPOR" }, /* speaker */ { "Spk", NULL, "Speaker" }, /* other jacks */ { "MIC", NULL, "Headset Mic" }, { "DMic", NULL, "SoC DMIC" }, {"HDMI", NULL, "hif5 Output"}, {"DP", NULL, "hif6 Output"}, /* CODEC BE connections */ { "HiFi Playback", NULL, "ssp0 Tx" }, { "ssp0 Tx", NULL, "codec0_out" }, { "Playback", NULL, "ssp1 Tx" }, { "ssp1 Tx", NULL, "codec1_out" }, { "codec0_in", NULL, "ssp1 Rx" }, { "ssp1 Rx", NULL, "Capture" }, /* DMIC */ { "dmic01_hifi", NULL, "DMIC01 Rx" }, { "DMIC01 Rx", NULL, "DMIC AIF" }, { "hifi3", NULL, "iDisp3 Tx"}, { "iDisp3 Tx", NULL, "iDisp3_out"}, { "hifi2", NULL, "iDisp2 Tx"}, { "iDisp2 Tx", NULL, "iDisp2_out"}, { "hifi1", NULL, "iDisp1 Tx"}, { "iDisp1 Tx", NULL, "iDisp1_out"}, { "Headphone Jack", NULL, "Platform Clock" }, { "Headset Mic", NULL, "Platform Clock" }, }; static int skylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_params *params) { struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); struct snd_interval *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); /* The ADSP will covert the FE rate to 48k, stereo */ rate->min = rate->max = 48000; channels->min = channels->max = 2; /* set SSP0 to 24 bit */ snd_mask_none(fmt); snd_mask_set(fmt, SNDRV_PCM_FORMAT_S24_LE); return 0; } static int skylake_nau8825_codec_init(struct snd_soc_pcm_runtime *rtd) { int ret; struct snd_soc_codec *codec = rtd->codec; /* * Headset buttons map to the google Reference headset. * These can be configured by userspace. */ ret = snd_soc_card_jack_new(&skylake_audio_card, "Headset Jack", SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2 | SND_JACK_BTN_3, &skylake_headset, NULL, 0); if (ret) { dev_err(rtd->dev, "Headset Jack creation failed %d\n", ret); return ret; } nau8825_enable_jack_detect(codec, &skylake_headset); snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC"); return ret; } static int skylake_hdmi1_init(struct snd_soc_pcm_runtime *rtd) { struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(rtd->card); struct snd_soc_dai *dai = rtd->codec_dai; struct skl_hdmi_pcm *pcm; pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL); if (!pcm) return -ENOMEM; pcm->device = SKL_DPCM_AUDIO_HDMI1_PB; pcm->codec_dai = dai; list_add_tail(&pcm->head, &ctx->hdmi_pcm_list); return 0; } static int skylake_hdmi2_init(struct snd_soc_pcm_runtime *rtd) { struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(rtd->card); struct snd_soc_dai *dai = rtd->codec_dai; struct skl_hdmi_pcm *pcm; pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL); if (!pcm) return -ENOMEM; pcm->device = SKL_DPCM_AUDIO_HDMI2_PB; pcm->codec_dai = dai; list_add_tail(&pcm->head, &ctx->hdmi_pcm_list); return 0; } static int skylake_hdmi3_init(struct snd_soc_pcm_runtime *rtd) { struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(rtd->card); struct snd_soc_dai *dai = rtd->codec_dai; struct skl_hdmi_pcm *pcm; pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL); if (!pcm) return -ENOMEM; pcm->device = SKL_DPCM_AUDIO_HDMI3_PB; pcm->codec_dai = dai; list_add_tail(&pcm->head, &ctx->hdmi_pcm_list); return 0; } static int skylake_nau8825_fe_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_dapm_context *dapm; struct snd_soc_component *component = rtd->cpu_dai->component; dapm = snd_soc_component_get_dapm(component); snd_soc_dapm_ignore_suspend(dapm, "Reference Capture"); return 0; } static unsigned int rates[] = { 48000, }; static struct snd_pcm_hw_constraint_list constraints_rates = { .count = ARRAY_SIZE(rates), .list = rates, .mask = 0, }; static unsigned int channels[] = { 2, }; static struct snd_pcm_hw_constraint_list constraints_channels = { .count = ARRAY_SIZE(channels), .list = channels, .mask = 0, }; static int skl_fe_startup(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; /* * On this platform for PCM device we support, * 48Khz * stereo * 16 bit audio */ runtime->hw.channels_max = 2; snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &constraints_channels); runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE; snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16); snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &constraints_rates); return 0; } static const struct snd_soc_ops skylake_nau8825_fe_ops = { .startup = skl_fe_startup, }; static int skylake_nau8825_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; int ret; ret = snd_soc_dai_set_sysclk(codec_dai, NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN); if (ret < 0) dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret); return ret; } static struct snd_soc_ops skylake_nau8825_ops = { .hw_params = skylake_nau8825_hw_params, }; static int skylake_dmic_fixup(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_params *params) { struct snd_interval *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); if (params_channels(params) == 2) channels->min = channels->max = 2; else channels->min = channels->max = 4; return 0; } static unsigned int channels_dmic[] = { 2, 4, }; static struct snd_pcm_hw_constraint_list constraints_dmic_channels = { .count = ARRAY_SIZE(channels_dmic), .list = channels_dmic, .mask = 0, }; static int skylake_dmic_startup(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; runtime->hw.channels_max = 4; snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &constraints_dmic_channels); return snd_pcm_hw_constraint_list(substream->runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &constraints_rates); } static struct snd_soc_ops skylake_dmic_ops = { .startup = skylake_dmic_startup, }; static unsigned int rates_16000[] = { 16000, }; static struct snd_pcm_hw_constraint_list constraints_16000 = { .count = ARRAY_SIZE(rates_16000), .list = rates_16000, }; static const unsigned int ch_mono[] = { 1, }; static const struct snd_pcm_hw_constraint_list constraints_refcap = { .count = ARRAY_SIZE(ch_mono), .list = ch_mono, }; static int skylake_refcap_startup(struct snd_pcm_substream *substream) { substream->runtime->hw.channels_max = 1; snd_pcm_hw_constraint_list(substream->runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &constraints_refcap); return snd_pcm_hw_constraint_list(substream->runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &constraints_16000); } static struct snd_soc_ops skylaye_refcap_ops = { .startup = skylake_refcap_startup, }; /* skylake digital audio interface glue - connects codec <--> CPU */ static struct snd_soc_dai_link skylake_dais[] = { /* Front End DAI links */ [SKL_DPCM_AUDIO_PB] = { .name = "Skl Audio Port", .stream_name = "Audio", .cpu_dai_name = "System Pin", .platform_name = "0000:00:1f.3", .dynamic = 1, .codec_name = "snd-soc-dummy", .codec_dai_name = "snd-soc-dummy-dai", .nonatomic = 1, .init = skylake_nau8825_fe_init, .trigger = { SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, .dpcm_playback = 1, .ops = &skylake_nau8825_fe_ops, }, [SKL_DPCM_AUDIO_CP] = { .name = "Skl Audio Capture Port", .stream_name = "Audio Record", .cpu_dai_name = "System Pin", .platform_name = "0000:00:1f.3", .dynamic = 1, .codec_name = "snd-soc-dummy", .codec_dai_name = "snd-soc-dummy-dai", .nonatomic = 1, .trigger = { SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, .dpcm_capture = 1, .ops = &skylake_nau8825_fe_ops, }, [SKL_DPCM_AUDIO_REF_CP] = { .name = "Skl Audio Reference cap", .stream_name = "Wake on Voice", .cpu_dai_name = "Reference Pin", .codec_name = "snd-soc-dummy", .codec_dai_name = "snd-soc-dummy-dai", .platform_name = "0000:00:1f.3", .init = NULL, .dpcm_capture = 1, .nonatomic = 1, .dynamic = 1, .ops = &skylaye_refcap_ops, }, [SKL_DPCM_AUDIO_DMIC_CP] = { .name = "Skl Audio DMIC cap", .stream_name = "dmiccap", .cpu_dai_name = "DMIC Pin", .codec_name = "snd-soc-dummy", .codec_dai_name = "snd-soc-dummy-dai", .platform_name = "0000:00:1f.3", .init = NULL, .dpcm_capture = 1, .nonatomic = 1, .dynamic = 1, .ops = &skylake_dmic_ops, }, [SKL_DPCM_AUDIO_HDMI1_PB] = { .name = "Skl HDMI Port1", .stream_name = "Hdmi1", .cpu_dai_name = "HDMI1 Pin", .codec_name = "snd-soc-dummy", .codec_dai_name = "snd-soc-dummy-dai", .platform_name = "0000:00:1f.3", .dpcm_playback = 1, .init = NULL, .trigger = { SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, .nonatomic = 1, .dynamic = 1, }, [SKL_DPCM_AUDIO_HDMI2_PB] = { .name = "Skl HDMI Port2", .stream_name = "Hdmi2", .cpu_dai_name = "HDMI2 Pin", .codec_name = "snd-soc-dummy", .codec_dai_name = "snd-soc-dummy-dai", .platform_name = "0000:00:1f.3", .dpcm_playback = 1, .init = NULL, .trigger = { SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, .nonatomic = 1, .dynamic = 1, }, [SKL_DPCM_AUDIO_HDMI3_PB] = { .name = "Skl HDMI Port3", .stream_name = "Hdmi3", .cpu_dai_name = "HDMI3 Pin", .codec_name = "snd-soc-dummy", .codec_dai_name = "snd-soc-dummy-dai", .platform_name = "0000:00:1f.3", .trigger = { SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, .dpcm_playback = 1, .init = NULL, .nonatomic = 1, .dynamic = 1, }, /* Back End DAI links */ { /* SSP0 - Codec */ .name = "SSP0-Codec", .id = 0, .cpu_dai_name = "SSP0 Pin", .platform_name = "0000:00:1f.3", .no_pcm = 1, .codec_name = "MX98357A:00", .codec_dai_name = SKL_MAXIM_CODEC_DAI, .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS, .ignore_pmdown_time = 1, .be_hw_params_fixup = skylake_ssp_fixup, .dpcm_playback = 1, }, { /* SSP1 - Codec */ .name = "SSP1-Codec", .id = 1, .cpu_dai_name = "SSP1 Pin", .platform_name = "0000:00:1f.3", .no_pcm = 1, .codec_name = "i2c-10508825:00", .codec_dai_name = SKL_NUVOTON_CODEC_DAI, .init = skylake_nau8825_codec_init, .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS, .ignore_pmdown_time = 1, .be_hw_params_fixup = skylake_ssp_fixup, .ops = &skylake_nau8825_ops, .dpcm_playback = 1, .dpcm_capture = 1, }, { .name = "dmic01", .id = 2, .cpu_dai_name = "DMIC01 Pin", .codec_name = "dmic-codec", .codec_dai_name = "dmic-hifi", .platform_name = "0000:00:1f.3", .be_hw_params_fixup = skylake_dmic_fixup, .ignore_suspend = 1, .dpcm_capture = 1, .no_pcm = 1, }, { .name = "iDisp1", .id = 3, .cpu_dai_name = "iDisp1 Pin", .codec_name = "ehdaudio0D2", .codec_dai_name = "intel-hdmi-hifi1", .platform_name = "0000:00:1f.3", .dpcm_playback = 1, .init = skylake_hdmi1_init, .no_pcm = 1, }, { .name = "iDisp2", .id = 4, .cpu_dai_name = "iDisp2 Pin", .codec_name = "ehdaudio0D2", .codec_dai_name = "intel-hdmi-hifi2", .platform_name = "0000:00:1f.3", .init = skylake_hdmi2_init, .dpcm_playback = 1, .no_pcm = 1, }, { .name = "iDisp3", .id = 5, .cpu_dai_name = "iDisp3 Pin", .codec_name = "ehdaudio0D2", .codec_dai_name = "intel-hdmi-hifi3", .platform_name = "0000:00:1f.3", .init = skylake_hdmi3_init, .dpcm_playback = 1, .no_pcm = 1, }, }; static int skylake_card_late_probe(struct snd_soc_card *card) { struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(card); struct skl_hdmi_pcm *pcm; int err; list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) { err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device); if (err < 0) return err; } return 0; } /* skylake audio machine driver for SPT + NAU88L25 */ static struct snd_soc_card skylake_audio_card = { .name = "sklnau8825max", .owner = THIS_MODULE, .dai_link = skylake_dais, .num_links = ARRAY_SIZE(skylake_dais), .controls = skylake_controls, .num_controls = ARRAY_SIZE(skylake_controls), .dapm_widgets = skylake_widgets, .num_dapm_widgets = ARRAY_SIZE(skylake_widgets), .dapm_routes = skylake_map, .num_dapm_routes = ARRAY_SIZE(skylake_map), .fully_routed = true, .late_probe = skylake_card_late_probe, }; static int skylake_audio_probe(struct platform_device *pdev) { struct skl_nau8825_private *ctx; ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_ATOMIC); if (!ctx) return -ENOMEM; INIT_LIST_HEAD(&ctx->hdmi_pcm_list); skylake_audio_card.dev = &pdev->dev; snd_soc_card_set_drvdata(&skylake_audio_card, ctx); return devm_snd_soc_register_card(&pdev->dev, &skylake_audio_card); } static struct platform_driver skylake_audio = { .probe = skylake_audio_probe, .driver = { .name = "skl_nau88l25_max98357a_i2s", .pm = &snd_soc_pm_ops, }, }; module_platform_driver(skylake_audio) /* Module information */ MODULE_DESCRIPTION("Audio Machine driver-NAU88L25 & MAX98357A in I2S mode"); MODULE_AUTHOR("Rohit Ainapure