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210 lines
5.7 KiB
210 lines
5.7 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* mt8173-max98090.c -- MT8173 MAX98090 ALSA SoC machine driver |
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* |
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* Copyright (c) 2015 MediaTek Inc. |
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* Author: Koro Chen <[email protected]> |
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*/ |
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#include <linux/module.h> |
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#include <sound/soc.h> |
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#include <sound/jack.h> |
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#include <linux/gpio.h> |
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#include "../../codecs/max98090.h" |
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static struct snd_soc_jack mt8173_max98090_jack; |
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static struct snd_soc_jack_pin mt8173_max98090_jack_pins[] = { |
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{ |
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.pin = "Headphone", |
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.mask = SND_JACK_HEADPHONE, |
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}, |
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{ |
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.pin = "Headset Mic", |
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.mask = SND_JACK_MICROPHONE, |
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}, |
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}; |
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static const struct snd_soc_dapm_widget mt8173_max98090_widgets[] = { |
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SND_SOC_DAPM_SPK("Speaker", NULL), |
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SND_SOC_DAPM_MIC("Int Mic", NULL), |
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SND_SOC_DAPM_HP("Headphone", NULL), |
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SND_SOC_DAPM_MIC("Headset Mic", NULL), |
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}; |
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static const struct snd_soc_dapm_route mt8173_max98090_routes[] = { |
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{"Speaker", NULL, "SPKL"}, |
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{"Speaker", NULL, "SPKR"}, |
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{"DMICL", NULL, "Int Mic"}, |
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{"Headphone", NULL, "HPL"}, |
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{"Headphone", NULL, "HPR"}, |
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{"Headset Mic", NULL, "MICBIAS"}, |
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{"IN34", NULL, "Headset Mic"}, |
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}; |
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static const struct snd_kcontrol_new mt8173_max98090_controls[] = { |
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SOC_DAPM_PIN_SWITCH("Speaker"), |
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SOC_DAPM_PIN_SWITCH("Int Mic"), |
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SOC_DAPM_PIN_SWITCH("Headphone"), |
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SOC_DAPM_PIN_SWITCH("Headset Mic"), |
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}; |
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static int mt8173_max98090_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 = asoc_substream_to_rtd(substream); |
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
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return snd_soc_dai_set_sysclk(codec_dai, 0, params_rate(params) * 256, |
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SND_SOC_CLOCK_IN); |
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} |
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static const struct snd_soc_ops mt8173_max98090_ops = { |
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.hw_params = mt8173_max98090_hw_params, |
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}; |
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static int mt8173_max98090_init(struct snd_soc_pcm_runtime *runtime) |
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{ |
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int ret; |
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struct snd_soc_card *card = runtime->card; |
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struct snd_soc_component *component = asoc_rtd_to_codec(runtime, 0)->component; |
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/* enable jack detection */ |
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ret = snd_soc_card_jack_new(card, "Headphone", SND_JACK_HEADPHONE, |
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&mt8173_max98090_jack, |
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mt8173_max98090_jack_pins, |
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ARRAY_SIZE(mt8173_max98090_jack_pins)); |
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if (ret) { |
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dev_err(card->dev, "Can't create a new Jack %d\n", ret); |
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return ret; |
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} |
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return max98090_mic_detect(component, &mt8173_max98090_jack); |
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} |
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SND_SOC_DAILINK_DEFS(playback, |
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DAILINK_COMP_ARRAY(COMP_CPU("DL1")), |
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DAILINK_COMP_ARRAY(COMP_DUMMY()), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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SND_SOC_DAILINK_DEFS(capture, |
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DAILINK_COMP_ARRAY(COMP_CPU("VUL")), |
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DAILINK_COMP_ARRAY(COMP_DUMMY()), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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SND_SOC_DAILINK_DEFS(hifi, |
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DAILINK_COMP_ARRAY(COMP_CPU("I2S")), |
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DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "HiFi")), |
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DAILINK_COMP_ARRAY(COMP_EMPTY())); |
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/* Digital audio interface glue - connects codec <---> CPU */ |
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static struct snd_soc_dai_link mt8173_max98090_dais[] = { |
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/* Front End DAI links */ |
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{ |
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.name = "MAX98090 Playback", |
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.stream_name = "MAX98090 Playback", |
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.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, |
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.dynamic = 1, |
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.dpcm_playback = 1, |
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SND_SOC_DAILINK_REG(playback), |
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}, |
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{ |
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.name = "MAX98090 Capture", |
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.stream_name = "MAX98090 Capture", |
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.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, |
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.dynamic = 1, |
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.dpcm_capture = 1, |
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SND_SOC_DAILINK_REG(capture), |
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}, |
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/* Back End DAI links */ |
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{ |
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.name = "Codec", |
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.no_pcm = 1, |
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.init = mt8173_max98090_init, |
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.ops = &mt8173_max98090_ops, |
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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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.dpcm_playback = 1, |
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.dpcm_capture = 1, |
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SND_SOC_DAILINK_REG(hifi), |
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}, |
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}; |
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static struct snd_soc_card mt8173_max98090_card = { |
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.name = "mt8173-max98090", |
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.owner = THIS_MODULE, |
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.dai_link = mt8173_max98090_dais, |
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.num_links = ARRAY_SIZE(mt8173_max98090_dais), |
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.controls = mt8173_max98090_controls, |
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.num_controls = ARRAY_SIZE(mt8173_max98090_controls), |
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.dapm_widgets = mt8173_max98090_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(mt8173_max98090_widgets), |
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.dapm_routes = mt8173_max98090_routes, |
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.num_dapm_routes = ARRAY_SIZE(mt8173_max98090_routes), |
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}; |
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static int mt8173_max98090_dev_probe(struct platform_device *pdev) |
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{ |
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struct snd_soc_card *card = &mt8173_max98090_card; |
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struct device_node *codec_node, *platform_node; |
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struct snd_soc_dai_link *dai_link; |
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int ret, i; |
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platform_node = of_parse_phandle(pdev->dev.of_node, |
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"mediatek,platform", 0); |
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if (!platform_node) { |
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dev_err(&pdev->dev, "Property 'platform' missing or invalid\n"); |
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return -EINVAL; |
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} |
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for_each_card_prelinks(card, i, dai_link) { |
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if (dai_link->platforms->name) |
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continue; |
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dai_link->platforms->of_node = platform_node; |
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} |
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codec_node = of_parse_phandle(pdev->dev.of_node, |
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"mediatek,audio-codec", 0); |
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if (!codec_node) { |
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dev_err(&pdev->dev, |
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"Property 'audio-codec' missing or invalid\n"); |
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return -EINVAL; |
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} |
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for_each_card_prelinks(card, i, dai_link) { |
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if (dai_link->codecs->name) |
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continue; |
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dai_link->codecs->of_node = codec_node; |
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} |
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card->dev = &pdev->dev; |
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ret = devm_snd_soc_register_card(&pdev->dev, card); |
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if (ret) |
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dev_err(&pdev->dev, "%s snd_soc_register_card fail %d\n", |
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__func__, ret); |
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return ret; |
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} |
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static const struct of_device_id mt8173_max98090_dt_match[] = { |
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{ .compatible = "mediatek,mt8173-max98090", }, |
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{ } |
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}; |
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MODULE_DEVICE_TABLE(of, mt8173_max98090_dt_match); |
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static struct platform_driver mt8173_max98090_driver = { |
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.driver = { |
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.name = "mt8173-max98090", |
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.of_match_table = mt8173_max98090_dt_match, |
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#ifdef CONFIG_PM |
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.pm = &snd_soc_pm_ops, |
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#endif |
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}, |
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.probe = mt8173_max98090_dev_probe, |
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}; |
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module_platform_driver(mt8173_max98090_driver); |
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/* Module information */ |
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MODULE_DESCRIPTION("MT8173 MAX98090 ALSA SoC machine driver"); |
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MODULE_AUTHOR("Koro Chen <[email protected]>"); |
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MODULE_LICENSE("GPL v2"); |
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MODULE_ALIAS("platform:mt8173-max98090"); |
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