| /* |
| * Intel Baytrail SST MAX98090 machine driver |
| * Copyright (c) 2014, Intel Corporation. |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms and conditions of the GNU General Public License, |
| * version 2, as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope 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 <linux/init.h> |
| #include <linux/module.h> |
| #include <linux/platform_device.h> |
| #include <linux/acpi.h> |
| #include <linux/device.h> |
| #include <linux/gpio.h> |
| #include <linux/gpio/consumer.h> |
| #include <linux/slab.h> |
| #include <sound/pcm.h> |
| #include <sound/pcm_params.h> |
| #include <sound/soc.h> |
| #include <sound/jack.h> |
| #include "../codecs/max98090.h" |
| |
| struct byt_max98090_private { |
| struct snd_soc_jack jack; |
| }; |
| |
| static const struct snd_soc_dapm_widget byt_max98090_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 byt_max98090_audio_map[] = { |
| {"IN34", NULL, "Headset Mic"}, |
| {"Headset Mic", NULL, "MICBIAS"}, |
| {"DMICL", NULL, "Int Mic"}, |
| {"Headphone", NULL, "HPL"}, |
| {"Headphone", NULL, "HPR"}, |
| {"Ext Spk", NULL, "SPKL"}, |
| {"Ext Spk", NULL, "SPKR"}, |
| }; |
| |
| static const struct snd_kcontrol_new byt_max98090_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 struct snd_soc_jack_pin hs_jack_pins[] = { |
| { |
| .pin = "Headphone", |
| .mask = SND_JACK_HEADPHONE, |
| }, |
| { |
| .pin = "Headset Mic", |
| .mask = SND_JACK_MICROPHONE, |
| }, |
| }; |
| |
| static struct snd_soc_jack_gpio hs_jack_gpios[] = { |
| { |
| .name = "hp-gpio", |
| .idx = 0, |
| .report = SND_JACK_HEADPHONE | SND_JACK_LINEOUT, |
| .debounce_time = 200, |
| }, |
| { |
| .name = "mic-gpio", |
| .idx = 1, |
| .invert = 1, |
| .report = SND_JACK_MICROPHONE, |
| .debounce_time = 200, |
| }, |
| }; |
| |
| static int byt_max98090_init(struct snd_soc_pcm_runtime *runtime) |
| { |
| int ret; |
| struct snd_soc_codec *codec = runtime->codec; |
| struct snd_soc_card *card = runtime->card; |
| struct byt_max98090_private *drv = snd_soc_card_get_drvdata(card); |
| struct snd_soc_jack *jack = &drv->jack; |
| |
| card->dapm.idle_bias_off = true; |
| |
| ret = snd_soc_dai_set_sysclk(runtime->codec_dai, |
| M98090_REG_SYSTEM_CLOCK, |
| 25000000, SND_SOC_CLOCK_IN); |
| if (ret < 0) { |
| dev_err(card->dev, "Can't set codec clock %d\n", ret); |
| return ret; |
| } |
| |
| /* Enable jack detection */ |
| ret = snd_soc_jack_new(codec, "Headset", |
| SND_JACK_LINEOUT | SND_JACK_HEADSET, jack); |
| if (ret) |
| return ret; |
| |
| ret = snd_soc_jack_add_pins(jack, ARRAY_SIZE(hs_jack_pins), |
| hs_jack_pins); |
| if (ret) |
| return ret; |
| |
| return snd_soc_jack_add_gpiods(card->dev->parent, jack, |
| ARRAY_SIZE(hs_jack_gpios), |
| hs_jack_gpios); |
| } |
| |
| static struct snd_soc_dai_link byt_max98090_dais[] = { |
| { |
| .name = "Baytrail Audio", |
| .stream_name = "Audio", |
| .cpu_dai_name = "baytrail-pcm-audio", |
| .codec_dai_name = "HiFi", |
| .codec_name = "i2c-193C9890:00", |
| .platform_name = "baytrail-pcm-audio", |
| .init = byt_max98090_init, |
| .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
| SND_SOC_DAIFMT_CBS_CFS, |
| }, |
| }; |
| |
| static struct snd_soc_card byt_max98090_card = { |
| .name = "byt-max98090", |
| .dai_link = byt_max98090_dais, |
| .num_links = ARRAY_SIZE(byt_max98090_dais), |
| .dapm_widgets = byt_max98090_widgets, |
| .num_dapm_widgets = ARRAY_SIZE(byt_max98090_widgets), |
| .dapm_routes = byt_max98090_audio_map, |
| .num_dapm_routes = ARRAY_SIZE(byt_max98090_audio_map), |
| .controls = byt_max98090_controls, |
| .num_controls = ARRAY_SIZE(byt_max98090_controls), |
| .fully_routed = true, |
| }; |
| |
| static int byt_max98090_probe(struct platform_device *pdev) |
| { |
| int ret_val = 0; |
| struct byt_max98090_private *priv; |
| |
| priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_ATOMIC); |
| if (!priv) { |
| dev_err(&pdev->dev, "allocation failed\n"); |
| return -ENOMEM; |
| } |
| |
| byt_max98090_card.dev = &pdev->dev; |
| snd_soc_card_set_drvdata(&byt_max98090_card, priv); |
| ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_max98090_card); |
| if (ret_val) { |
| dev_err(&pdev->dev, |
| "snd_soc_register_card failed %d\n", ret_val); |
| return ret_val; |
| } |
| |
| return ret_val; |
| } |
| |
| static int byt_max98090_remove(struct platform_device *pdev) |
| { |
| struct snd_soc_card *card = platform_get_drvdata(pdev); |
| struct byt_max98090_private *priv = snd_soc_card_get_drvdata(card); |
| |
| snd_soc_jack_free_gpios(&priv->jack, ARRAY_SIZE(hs_jack_gpios), |
| hs_jack_gpios); |
| |
| return 0; |
| } |
| |
| static struct platform_driver byt_max98090_driver = { |
| .probe = byt_max98090_probe, |
| .remove = byt_max98090_remove, |
| .driver = { |
| .name = "byt-max98090", |
| .owner = THIS_MODULE, |
| .pm = &snd_soc_pm_ops, |
| }, |
| }; |
| module_platform_driver(byt_max98090_driver) |
| |
| MODULE_DESCRIPTION("ASoC Intel(R) Baytrail Machine driver"); |
| MODULE_AUTHOR("Omair Md Abdullah, Jarkko Nikula"); |
| MODULE_LICENSE("GPL v2"); |
| MODULE_ALIAS("platform:byt-max98090"); |