// SPDX-License-Identifier: GPL-2.0-only /* * cht-bsw-nau8824.c - ASoc Machine driver for Intel Cherryview-based * platforms Cherrytrail and Braswell, with nau8824 codec. * * Copyright (C) 2018 Intel Corp * Copyright (C) 2018 Nuvoton Technology Corp * * Author: Wang, Joseph C <joequant@gmail.com> * Co-author: John Hsu <KCHSU0@nuvoton.com> * This file is based on cht_bsw_rt5672.c and cht-bsw-max98090.c */ #include <linux/module.h> #include <linux/platform_device.h> #include <linux/slab.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/soc-acpi.h> #include <sound/jack.h> #include <linux/input.h> #include "../atom/sst-atom-controls.h" #include "../../codecs/nau8824.h" struct cht_mc_private { struct snd_soc_jack jack; }; static struct snd_soc_jack_pin cht_bsw_jack_pins[] = { { .pin = "Headphone", .mask = SND_JACK_HEADPHONE, }, { .pin = "Headset Mic", .mask = SND_JACK_MICROPHONE, }, }; static const struct snd_soc_dapm_widget cht_dapm_widgets[] = { SND_SOC_DAPM_HP("Headphone", NULL), SND_SOC_DAPM_MIC("Headset Mic", NULL), SND_SOC_DAPM_MIC("Int Mic", NULL), SND_SOC_DAPM_SPK("Ext Spk", NULL), }; static const struct snd_soc_dapm_route cht_audio_map[] = { {"Ext Spk", NULL, "SPKOUTL"}, {"Ext Spk", NULL, "SPKOUTR"}, {"Headphone", NULL, "HPOL"}, {"Headphone", NULL, "HPOR"}, {"MIC1", NULL, "Int Mic"}, {"MIC2", NULL, "Int Mic"}, {"HSMIC1", NULL, "Headset Mic"}, {"HSMIC2", NULL, "Headset Mic"}, {"Playback", NULL, "ssp2 Tx"}, {"ssp2 Tx", NULL, "codec_out0"}, {"ssp2 Tx", NULL, "codec_out1"}, {"codec_in0", NULL, "ssp2 Rx" }, {"codec_in1", NULL, "ssp2 Rx" }, {"ssp2 Rx", NULL, "Capture"}, }; static const struct snd_kcontrol_new cht_mc_controls[] = { SOC_DAPM_PIN_SWITCH("Headphone"), SOC_DAPM_PIN_SWITCH("Headset Mic"), SOC_DAPM_PIN_SWITCH("Int Mic"), SOC_DAPM_PIN_SWITCH("Ext Spk"), }; static int cht_aif1_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); int ret; ret = snd_soc_dai_set_sysclk(codec_dai, NAU8824_CLK_FLL_FS, 0, SND_SOC_CLOCK_IN); if (ret < 0) { dev_err(codec_dai->dev, "can't set FS clock %d\n", ret); return ret; } ret = snd_soc_dai_set_pll(codec_dai, 0, 0, params_rate(params), params_rate(params) * 256); if (ret < 0) { dev_err(codec_dai->dev, "can't set FLL: %d\n", ret); return ret; } return 0; } static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) { struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card); struct snd_soc_jack *jack = &ctx->jack; struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(runtime, 0); struct snd_soc_component *component = codec_dai->component; int ret, jack_type; /* NAU88L24 supports 4 butons headset detection * KEY_PLAYPAUSE * KEY_VOICECOMMAND * KEY_VOLUMEUP * KEY_VOLUMEDOWN */ jack_type = SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2 | SND_JACK_BTN_3; ret = snd_soc_card_jack_new(runtime->card, "Headset", jack_type, jack, cht_bsw_jack_pins, ARRAY_SIZE(cht_bsw_jack_pins)); if (ret) { dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret); return ret; } snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP); snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); nau8824_enable_jack_detect(component, jack); return ret; } static int cht_codec_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); int ret; /* The DSP will covert the FE rate to 48k, stereo, 24bits */ rate->min = rate->max = 48000; channels->min = channels->max = 2; /* set SSP2 to 24-bit */ snd_mask_none(fmt); params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */ ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(rtd, 0), 0xf, 0x1, 4, 24); if (ret < 0) { dev_err(rtd->dev, "can't set codec TDM slot %d\n", ret); return ret; } return 0; } static int cht_aif1_startup(struct snd_pcm_substream *substream) { return snd_pcm_hw_constraint_single(substream->runtime, SNDRV_PCM_HW_PARAM_RATE, 48000); } static const struct snd_soc_ops cht_aif1_ops = { .startup = cht_aif1_startup, }; static const struct snd_soc_ops cht_be_ssp2_ops = { .hw_params = cht_aif1_hw_params, }; SND_SOC_DAILINK_DEF(dummy, DAILINK_COMP_ARRAY(COMP_DUMMY())); SND_SOC_DAILINK_DEF(media, DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai"))); SND_SOC_DAILINK_DEF(deepbuffer, DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai"))); SND_SOC_DAILINK_DEF(ssp2_port, DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port"))); SND_SOC_DAILINK_DEF(ssp2_codec, DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10508824:00", NAU8824_CODEC_DAI))); SND_SOC_DAILINK_DEF(platform, DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform"))); static struct snd_soc_dai_link cht_dailink[] = { /* Front End DAI links */ [MERR_DPCM_AUDIO] = { .name = "Audio Port", .stream_name = "Audio", .nonatomic = true, .dynamic = 1, .dpcm_playback = 1, .dpcm_capture = 1, .ops = &cht_aif1_ops, SND_SOC_DAILINK_REG(media, dummy, platform), }, [MERR_DPCM_DEEP_BUFFER] = { .name = "Deep-Buffer Audio Port", .stream_name = "Deep-Buffer Audio", .nonatomic = true, .dynamic = 1, .dpcm_playback = 1, .ops = &cht_aif1_ops, SND_SOC_DAILINK_REG(deepbuffer, dummy, platform), }, /* Back End DAI links */ { /* SSP2 - Codec */ .name = "SSP2-Codec", .id = 0, .no_pcm = 1, .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_CBS_CFS, .init = cht_codec_init, .be_hw_params_fixup = cht_codec_fixup, .dpcm_playback = 1, .dpcm_capture = 1, .ops = &cht_be_ssp2_ops, SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform), }, }; /* use space before codec name to simplify card ID, and simplify driver name */ #define SOF_CARD_NAME "bytcht nau8824" /* card name will be 'sof-bytcht nau8824 */ #define SOF_DRIVER_NAME "SOF" #define CARD_NAME "chtnau8824" #define DRIVER_NAME NULL /* card name will be used for driver name */ /* SoC card */ static struct snd_soc_card snd_soc_card_cht = { .owner = THIS_MODULE, .dai_link = cht_dailink, .num_links = ARRAY_SIZE(cht_dailink), .dapm_widgets = cht_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), .dapm_routes = cht_audio_map, .num_dapm_routes = ARRAY_SIZE(cht_audio_map), .controls = cht_mc_controls, .num_controls = ARRAY_SIZE(cht_mc_controls), }; static int snd_cht_mc_probe(struct platform_device *pdev) { struct cht_mc_private *drv; struct snd_soc_acpi_mach *mach; const char *platform_name; bool sof_parent; int ret_val; drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL); if (!drv) return -ENOMEM; snd_soc_card_set_drvdata(&snd_soc_card_cht, drv); /* override plaform name, if required */ snd_soc_card_cht.dev = &pdev->dev; mach = pdev->dev.platform_data; platform_name = mach->mach_params.platform; ret_val = snd_soc_fixup_dai_links_platform_name(&snd_soc_card_cht, platform_name); if (ret_val) return ret_val; sof_parent = snd_soc_acpi_sof_parent(&pdev->dev); /* set card and driver name */ if (sof_parent) { snd_soc_card_cht.name = SOF_CARD_NAME; snd_soc_card_cht.driver_name = SOF_DRIVER_NAME; } else { snd_soc_card_cht.name = CARD_NAME; snd_soc_card_cht.driver_name = DRIVER_NAME; } /* set pm ops */ if (sof_parent) pdev->dev.driver->pm = &snd_soc_pm_ops; /* register the soc card */ ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht); if (ret_val) { dev_err(&pdev->dev, "snd_soc_register_card failed %d\n", ret_val); return ret_val; } platform_set_drvdata(pdev, &snd_soc_card_cht); return ret_val; } static struct platform_driver snd_cht_mc_driver = { .driver = { .name = "cht-bsw-nau8824", }, .probe = snd_cht_mc_probe, }; module_platform_driver(snd_cht_mc_driver); MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver"); MODULE_AUTHOR("Wang, Joseph C <joequant@gmail.com>"); MODULE_AUTHOR("John Hsu <KCHSU0@nuvoton.com>"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:cht-bsw-nau8824");