| // 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 = substream->private_data; |
| 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; |
| |
| /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */ |
| ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xf, 0x1, 4, 24); |
| if (ret < 0) { |
| dev_err(runtime->dev, "can't set codec TDM slot %d\n", ret); |
| return ret; |
| } |
| |
| /* NAU88L24 supports 4 butons headset detection |
| * KEY_MEDIA |
| * 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_MEDIA); |
| 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); |
| |
| /* 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); |
| |
| 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(compress, |
| DAILINK_COMP_ARRAY(COMP_CPU("compress-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), |
| }, |
| [MERR_DPCM_COMPR] = { |
| .name = "Compressed Port", |
| .stream_name = "Compress", |
| SND_SOC_DAILINK_REG(compress, dummy, platform), |
| }, |
| /* Back End DAI links */ |
| { |
| /* SSP2 - Codec */ |
| .name = "SSP2-Codec", |
| .id = 1, |
| .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), |
| }, |
| }; |
| |
| /* SoC card */ |
| static struct snd_soc_card snd_soc_card_cht = { |
| .name = "chtnau8824", |
| .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; |
| 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; |
| |
| /* 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"); |