| /* |
| * cht-bsw-max98090.c - ASoc Machine driver for Intel Cherryview-based |
| * platforms Cherrytrail and Braswell, with max98090 & TI codec. |
| * |
| * Copyright (C) 2015 Intel Corp |
| * Author: Fang, Yang A <yang.a.fang@intel.com> |
| * This file is modified from cht_bsw_rt5645.c |
| * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * 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 <linux/dmi.h> |
| #include <linux/module.h> |
| #include <linux/platform_device.h> |
| #include <linux/slab.h> |
| #include <linux/acpi.h> |
| #include <linux/clk.h> |
| #include <sound/pcm.h> |
| #include <sound/pcm_params.h> |
| #include <sound/soc.h> |
| #include <sound/jack.h> |
| #include "../../codecs/max98090.h" |
| #include "../atom/sst-atom-controls.h" |
| #include "../../codecs/ts3a227e.h" |
| |
| #define CHT_PLAT_CLK_3_HZ 19200000 |
| #define CHT_CODEC_DAI "HiFi" |
| |
| #define QUIRK_PMC_PLT_CLK_0 0x01 |
| |
| struct cht_mc_private { |
| struct clk *mclk; |
| struct snd_soc_jack jack; |
| bool ts3a227e_present; |
| }; |
| |
| 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; |
| struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card); |
| int ret; |
| |
| codec_dai = snd_soc_card_get_codec_dai(card, CHT_CODEC_DAI); |
| 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 = clk_prepare_enable(ctx->mclk); |
| if (ret < 0) { |
| dev_err(card->dev, |
| "could not configure MCLK state"); |
| return ret; |
| } |
| } else { |
| clk_disable_unprepare(ctx->mclk); |
| } |
| |
| return 0; |
| } |
| |
| 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), |
| 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 cht_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"}, |
| {"HiFi 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, "HiFi Capture"}, |
| {"Headphone", NULL, "Platform Clock"}, |
| {"Headset Mic", NULL, "Platform Clock"}, |
| {"Int Mic", NULL, "Platform Clock"}, |
| {"Ext Spk", NULL, "Platform Clock"}, |
| }; |
| |
| 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 = rtd->codec_dai; |
| int ret; |
| |
| ret = snd_soc_dai_set_sysclk(codec_dai, M98090_REG_SYSTEM_CLOCK, |
| CHT_PLAT_CLK_3_HZ, SND_SOC_CLOCK_IN); |
| if (ret < 0) { |
| dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static int cht_ti_jack_event(struct notifier_block *nb, |
| unsigned long event, void *data) |
| { |
| struct snd_soc_jack *jack = (struct snd_soc_jack *)data; |
| struct snd_soc_dapm_context *dapm = &jack->card->dapm; |
| |
| if (event & SND_JACK_MICROPHONE) { |
| snd_soc_dapm_force_enable_pin(dapm, "SHDN"); |
| snd_soc_dapm_force_enable_pin(dapm, "MICBIAS"); |
| snd_soc_dapm_sync(dapm); |
| } else { |
| snd_soc_dapm_disable_pin(dapm, "MICBIAS"); |
| snd_soc_dapm_disable_pin(dapm, "SHDN"); |
| snd_soc_dapm_sync(dapm); |
| } |
| |
| return 0; |
| } |
| |
| static struct notifier_block cht_jack_nb = { |
| .notifier_call = cht_ti_jack_event, |
| }; |
| |
| 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", |
| .report = SND_JACK_HEADPHONE | SND_JACK_LINEOUT, |
| .debounce_time = 200, |
| }, |
| { |
| .name = "mic", |
| .invert = 1, |
| .report = SND_JACK_MICROPHONE, |
| .debounce_time = 200, |
| }, |
| }; |
| |
| static const struct acpi_gpio_params hp_gpios = { 0, 0, false }; |
| static const struct acpi_gpio_params mic_gpios = { 1, 0, false }; |
| |
| static const struct acpi_gpio_mapping acpi_max98090_gpios[] = { |
| { "hp-gpios", &hp_gpios, 1 }, |
| { "mic-gpios", &mic_gpios, 1 }, |
| {}, |
| }; |
| |
| static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) |
| { |
| int ret; |
| int jack_type; |
| struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card); |
| struct snd_soc_jack *jack = &ctx->jack; |
| |
| if (ctx->ts3a227e_present) { |
| /* |
| * The jack has already been created in the |
| * cht_max98090_headset_init() function. |
| */ |
| snd_soc_jack_notifier_register(jack, &cht_jack_nb); |
| return 0; |
| } |
| |
| jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE; |
| |
| ret = snd_soc_card_jack_new(runtime->card, "Headset Jack", |
| jack_type, jack, |
| hs_jack_pins, ARRAY_SIZE(hs_jack_pins)); |
| if (ret) { |
| dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret); |
| return ret; |
| } |
| |
| ret = snd_soc_jack_add_gpiods(runtime->card->dev->parent, jack, |
| ARRAY_SIZE(hs_jack_gpios), |
| hs_jack_gpios); |
| if (ret) { |
| /* |
| * flag error but don't bail if jack detect is broken |
| * due to platform issues or bad BIOS/configuration |
| */ |
| dev_err(runtime->dev, |
| "jack detection gpios not added, error %d\n", ret); |
| } |
| |
| /* |
| * The firmware might enable the clock at |
| * boot (this information may or may not |
| * be reflected in the enable clock register). |
| * To change the rate we must disable the clock |
| * first to cover these cases. Due to common |
| * clock framework restrictions that do not allow |
| * to disable a clock that has not been enabled, |
| * we need to enable the clock first. |
| */ |
| ret = clk_prepare_enable(ctx->mclk); |
| if (!ret) |
| clk_disable_unprepare(ctx->mclk); |
| |
| ret = clk_set_rate(ctx->mclk, CHT_PLAT_CLK_3_HZ); |
| |
| if (ret) |
| dev_err(runtime->dev, "unable to set MCLK rate\n"); |
| |
| 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); |
| int ret = 0; |
| unsigned int fmt = 0; |
| |
| ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16); |
| if (ret < 0) { |
| dev_err(rtd->dev, "can't set cpu_dai slot fmt: %d\n", ret); |
| return ret; |
| } |
| |
| fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
| | SND_SOC_DAIFMT_CBS_CFS; |
| |
| ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt); |
| if (ret < 0) { |
| dev_err(rtd->dev, "can't set cpu_dai set fmt: %d\n", ret); |
| return 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 16-bit */ |
| params_set_format(params, SNDRV_PCM_FORMAT_S16_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 int cht_max98090_headset_init(struct snd_soc_component *component) |
| { |
| struct snd_soc_card *card = component->card; |
| struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card); |
| struct snd_soc_jack *jack = &ctx->jack; |
| int jack_type; |
| int ret; |
| |
| /* |
| * TI supports 4 butons headset detection |
| * KEY_MEDIA |
| * KEY_VOICECOMMAND |
| * KEY_VOLUMEUP |
| * KEY_VOLUMEDOWN |
| */ |
| jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE | |
| SND_JACK_BTN_0 | SND_JACK_BTN_1 | |
| SND_JACK_BTN_2 | SND_JACK_BTN_3; |
| |
| ret = snd_soc_card_jack_new(card, "Headset Jack", jack_type, |
| jack, NULL, 0); |
| if (ret) { |
| dev_err(card->dev, "Headset Jack creation failed %d\n", ret); |
| return ret; |
| } |
| |
| return ts3a227e_enable_jack_detect(component, jack); |
| } |
| |
| 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, |
| }; |
| |
| static struct snd_soc_aux_dev cht_max98090_headset_dev = { |
| .name = "Headset Chip", |
| .init = cht_max98090_headset_init, |
| .codec_name = "i2c-104C227E:00", |
| }; |
| |
| static struct snd_soc_dai_link cht_dailink[] = { |
| [MERR_DPCM_AUDIO] = { |
| .name = "Audio Port", |
| .stream_name = "Audio", |
| .cpu_dai_name = "media-cpu-dai", |
| .codec_dai_name = "snd-soc-dummy-dai", |
| .codec_name = "snd-soc-dummy", |
| .platform_name = "sst-mfld-platform", |
| .nonatomic = true, |
| .dynamic = 1, |
| .dpcm_playback = 1, |
| .dpcm_capture = 1, |
| .ops = &cht_aif1_ops, |
| }, |
| [MERR_DPCM_DEEP_BUFFER] = { |
| .name = "Deep-Buffer Audio Port", |
| .stream_name = "Deep-Buffer Audio", |
| .cpu_dai_name = "deepbuffer-cpu-dai", |
| .codec_dai_name = "snd-soc-dummy-dai", |
| .codec_name = "snd-soc-dummy", |
| .platform_name = "sst-mfld-platform", |
| .nonatomic = true, |
| .dynamic = 1, |
| .dpcm_playback = 1, |
| .ops = &cht_aif1_ops, |
| }, |
| /* back ends */ |
| { |
| .name = "SSP2-Codec", |
| .id = 0, |
| .cpu_dai_name = "ssp2-port", |
| .platform_name = "sst-mfld-platform", |
| .no_pcm = 1, |
| .codec_dai_name = "HiFi", |
| .codec_name = "i2c-193C9890:00", |
| .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_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, |
| }, |
| }; |
| |
| /* SoC card */ |
| static struct snd_soc_card snd_soc_card_cht = { |
| .name = "chtmax98090", |
| .owner = THIS_MODULE, |
| .dai_link = cht_dailink, |
| .num_links = ARRAY_SIZE(cht_dailink), |
| .aux_dev = &cht_max98090_headset_dev, |
| .num_aux_devs = 1, |
| .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 const struct dmi_system_id cht_max98090_quirk_table[] = { |
| { |
| /* Clapper model Chromebook */ |
| .matches = { |
| DMI_MATCH(DMI_PRODUCT_NAME, "Clapper"), |
| }, |
| .driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
| }, |
| { |
| /* Gnawty model Chromebook (Acer Chromebook CB3-111) */ |
| .matches = { |
| DMI_MATCH(DMI_PRODUCT_NAME, "Gnawty"), |
| }, |
| .driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
| }, |
| { |
| /* Swanky model Chromebook (Toshiba Chromebook 2) */ |
| .matches = { |
| DMI_MATCH(DMI_PRODUCT_NAME, "Swanky"), |
| }, |
| .driver_data = (void *)QUIRK_PMC_PLT_CLK_0, |
| }, |
| {} |
| }; |
| |
| static int snd_cht_mc_probe(struct platform_device *pdev) |
| { |
| const struct dmi_system_id *dmi_id; |
| struct device *dev = &pdev->dev; |
| int ret_val = 0; |
| struct cht_mc_private *drv; |
| const char *mclk_name; |
| int quirks = 0; |
| |
| dmi_id = dmi_first_match(cht_max98090_quirk_table); |
| if (dmi_id) |
| quirks = (unsigned long)dmi_id->driver_data; |
| |
| drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL); |
| if (!drv) |
| return -ENOMEM; |
| |
| drv->ts3a227e_present = acpi_dev_found("104C227E"); |
| if (!drv->ts3a227e_present) { |
| /* no need probe TI jack detection chip */ |
| snd_soc_card_cht.aux_dev = NULL; |
| snd_soc_card_cht.num_aux_devs = 0; |
| |
| ret_val = devm_acpi_dev_add_driver_gpios(dev->parent, |
| acpi_max98090_gpios); |
| if (ret_val) |
| dev_dbg(dev, "Unable to add GPIO mapping table\n"); |
| } |
| |
| /* register the soc card */ |
| snd_soc_card_cht.dev = &pdev->dev; |
| snd_soc_card_set_drvdata(&snd_soc_card_cht, drv); |
| |
| if (quirks & QUIRK_PMC_PLT_CLK_0) |
| mclk_name = "pmc_plt_clk_0"; |
| else |
| mclk_name = "pmc_plt_clk_3"; |
| |
| drv->mclk = devm_clk_get(&pdev->dev, mclk_name); |
| if (IS_ERR(drv->mclk)) { |
| dev_err(&pdev->dev, |
| "Failed to get MCLK from %s: %ld\n", |
| mclk_name, PTR_ERR(drv->mclk)); |
| return PTR_ERR(drv->mclk); |
| } |
| |
| 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-max98090", |
| }, |
| .probe = snd_cht_mc_probe, |
| }; |
| |
| module_platform_driver(snd_cht_mc_driver) |
| |
| MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver"); |
| MODULE_AUTHOR("Fang, Yang A <yang.a.fang@intel.com>"); |
| MODULE_LICENSE("GPL v2"); |
| MODULE_ALIAS("platform:cht-bsw-max98090"); |