/* * bytcht_es8316.c - ASoc Machine driver for Intel Baytrail/Cherrytrail * platforms with Everest ES8316 SoC * * Copyright (C) 2017 Endless Mobile, Inc. * Authors: David Yang , * Daniel Drake * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "../atom/sst-atom-controls.h" #include "../common/sst-dsp.h" /* jd-inv + terminating entry */ #define MAX_NO_PROPS 2 struct byt_cht_es8316_private { struct clk *mclk; struct snd_soc_jack jack; struct gpio_desc *speaker_en_gpio; bool speaker_en; }; enum { BYT_CHT_ES8316_INTMIC_IN1_MAP, BYT_CHT_ES8316_INTMIC_IN2_MAP, }; #define BYT_CHT_ES8316_MAP(quirk) ((quirk) & GENMASK(3, 0)) #define BYT_CHT_ES8316_SSP0 BIT(16) #define BYT_CHT_ES8316_MONO_SPEAKER BIT(17) #define BYT_CHT_ES8316_JD_INVERTED BIT(18) static unsigned long quirk; static int quirk_override = -1; module_param_named(quirk, quirk_override, int, 0444); MODULE_PARM_DESC(quirk, "Board-specific quirk override"); static void log_quirks(struct device *dev) { if (BYT_CHT_ES8316_MAP(quirk) == BYT_CHT_ES8316_INTMIC_IN1_MAP) dev_info(dev, "quirk IN1_MAP enabled"); if (BYT_CHT_ES8316_MAP(quirk) == BYT_CHT_ES8316_INTMIC_IN2_MAP) dev_info(dev, "quirk IN2_MAP enabled"); if (quirk & BYT_CHT_ES8316_SSP0) dev_info(dev, "quirk SSP0 enabled"); if (quirk & BYT_CHT_ES8316_MONO_SPEAKER) dev_info(dev, "quirk MONO_SPEAKER enabled\n"); if (quirk & BYT_CHT_ES8316_JD_INVERTED) dev_info(dev, "quirk JD_INVERTED enabled\n"); } static int byt_cht_es8316_speaker_power_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct snd_soc_card *card = w->dapm->card; struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card); if (SND_SOC_DAPM_EVENT_ON(event)) priv->speaker_en = true; else priv->speaker_en = false; gpiod_set_value_cansleep(priv->speaker_en_gpio, priv->speaker_en); return 0; } static const struct snd_soc_dapm_widget byt_cht_es8316_widgets[] = { SND_SOC_DAPM_SPK("Speaker", NULL), SND_SOC_DAPM_HP("Headphone", NULL), SND_SOC_DAPM_MIC("Headset Mic", NULL), SND_SOC_DAPM_MIC("Internal Mic", NULL), SND_SOC_DAPM_SUPPLY("Speaker Power", SND_SOC_NOPM, 0, 0, byt_cht_es8316_speaker_power_event, SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU), }; static const struct snd_soc_dapm_route byt_cht_es8316_audio_map[] = { {"Headphone", NULL, "HPOL"}, {"Headphone", NULL, "HPOR"}, /* * There is no separate speaker output instead the speakers are muxed to * the HP outputs. The mux is controlled by the "Speaker Power" supply. */ {"Speaker", NULL, "HPOL"}, {"Speaker", NULL, "HPOR"}, {"Speaker", NULL, "Speaker Power"}, }; static const struct snd_soc_dapm_route byt_cht_es8316_intmic_in1_map[] = { {"MIC1", NULL, "Internal Mic"}, {"MIC2", NULL, "Headset Mic"}, }; static const struct snd_soc_dapm_route byt_cht_es8316_intmic_in2_map[] = { {"MIC2", NULL, "Internal Mic"}, {"MIC1", NULL, "Headset Mic"}, }; static const struct snd_soc_dapm_route byt_cht_es8316_ssp0_map[] = { {"Playback", NULL, "ssp0 Tx"}, {"ssp0 Tx", NULL, "modem_out"}, {"modem_in", NULL, "ssp0 Rx"}, {"ssp0 Rx", NULL, "Capture"}, }; static const struct snd_soc_dapm_route byt_cht_es8316_ssp2_map[] = { {"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 byt_cht_es8316_controls[] = { SOC_DAPM_PIN_SWITCH("Speaker"), SOC_DAPM_PIN_SWITCH("Headphone"), SOC_DAPM_PIN_SWITCH("Headset Mic"), SOC_DAPM_PIN_SWITCH("Internal Mic"), }; static struct snd_soc_jack_pin byt_cht_es8316_jack_pins[] = { { .pin = "Headphone", .mask = SND_JACK_HEADPHONE, }, { .pin = "Headset Mic", .mask = SND_JACK_MICROPHONE, }, }; static int byt_cht_es8316_init(struct snd_soc_pcm_runtime *runtime) { struct snd_soc_component *codec = runtime->codec_dai->component; struct snd_soc_card *card = runtime->card; struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card); const struct snd_soc_dapm_route *custom_map; int num_routes; int ret; card->dapm.idle_bias_off = true; switch (BYT_CHT_ES8316_MAP(quirk)) { case BYT_CHT_ES8316_INTMIC_IN1_MAP: default: custom_map = byt_cht_es8316_intmic_in1_map; num_routes = ARRAY_SIZE(byt_cht_es8316_intmic_in1_map); break; case BYT_CHT_ES8316_INTMIC_IN2_MAP: custom_map = byt_cht_es8316_intmic_in2_map; num_routes = ARRAY_SIZE(byt_cht_es8316_intmic_in2_map); break; } ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes); if (ret) return ret; if (quirk & BYT_CHT_ES8316_SSP0) { custom_map = byt_cht_es8316_ssp0_map; num_routes = ARRAY_SIZE(byt_cht_es8316_ssp0_map); } else { custom_map = byt_cht_es8316_ssp2_map; num_routes = ARRAY_SIZE(byt_cht_es8316_ssp2_map); } ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes); if (ret) return 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(priv->mclk); if (!ret) clk_disable_unprepare(priv->mclk); ret = clk_set_rate(priv->mclk, 19200000); if (ret) dev_err(card->dev, "unable to set MCLK rate\n"); ret = clk_prepare_enable(priv->mclk); if (ret) dev_err(card->dev, "unable to enable MCLK\n"); ret = snd_soc_dai_set_sysclk(runtime->codec_dai, 0, 19200000, SND_SOC_CLOCK_IN); if (ret < 0) { dev_err(card->dev, "can't set codec clock %d\n", ret); return ret; } ret = snd_soc_card_jack_new(card, "Headset", SND_JACK_HEADSET | SND_JACK_BTN_0, &priv->jack, byt_cht_es8316_jack_pins, ARRAY_SIZE(byt_cht_es8316_jack_pins)); if (ret) { dev_err(card->dev, "jack creation failed %d\n", ret); return ret; } snd_jack_set_key(priv->jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); snd_soc_component_set_jack(codec, &priv->jack, NULL); return 0; } static const struct snd_soc_pcm_stream byt_cht_es8316_dai_params = { .formats = SNDRV_PCM_FMTBIT_S24_LE, .rate_min = 48000, .rate_max = 48000, .channels_min = 2, .channels_max = 2, }; static int byt_cht_es8316_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, bits; /* The DSP will covert the FE rate to 48k, stereo */ rate->min = rate->max = 48000; channels->min = channels->max = 2; if (quirk & BYT_CHT_ES8316_SSP0) { /* set SSP0 to 16-bit */ params_set_format(params, SNDRV_PCM_FORMAT_S16_LE); bits = 16; } else { /* set SSP2 to 24-bit */ params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); bits = 24; } /* * Default mode for SSP configuration is TDM 4 slot, override config * with explicit setting to I2S 2ch 24-bit. The word length is set with * dai_set_tdm_slot() since there is no other API exposed */ ret = snd_soc_dai_set_fmt(rtd->cpu_dai, SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS ); if (ret < 0) { dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret); return ret; } ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, bits); if (ret < 0) { dev_err(rtd->dev, "can't set I2S config, err %d\n", ret); return ret; } return 0; } static int byt_cht_es8316_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 byt_cht_es8316_aif1_ops = { .startup = byt_cht_es8316_aif1_startup, }; static struct snd_soc_dai_link byt_cht_es8316_dais[] = { [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 = &byt_cht_es8316_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 = &byt_cht_es8316_aif1_ops, }, /* back ends */ { /* Only SSP2 has been tested here, so BYT-CR platforms that * require SSP0 will not work. */ .name = "SSP2-Codec", .id = 0, .cpu_dai_name = "ssp2-port", .platform_name = "sst-mfld-platform", .no_pcm = 1, .codec_dai_name = "ES8316 HiFi", .codec_name = "i2c-ESSX8316:00", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS, .be_hw_params_fixup = byt_cht_es8316_codec_fixup, .nonatomic = true, .dpcm_playback = 1, .dpcm_capture = 1, .init = byt_cht_es8316_init, }, }; /* SoC card */ static char codec_name[SND_ACPI_I2C_ID_LEN]; static char long_name[50]; /* = "bytcht-es8316-*-spk-*-mic" */ static int byt_cht_es8316_suspend(struct snd_soc_card *card) { struct snd_soc_component *component; for_each_card_components(card, component) { if (!strcmp(component->name, codec_name)) { dev_dbg(component->dev, "disabling jack detect before suspend\n"); snd_soc_component_set_jack(component, NULL, NULL); break; } } return 0; } static int byt_cht_es8316_resume(struct snd_soc_card *card) { struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card); struct snd_soc_component *component; for_each_card_components(card, component) { if (!strcmp(component->name, codec_name)) { dev_dbg(component->dev, "re-enabling jack detect after resume\n"); snd_soc_component_set_jack(component, &priv->jack, NULL); break; } } /* * Some Cherry Trail boards with an ES8316 codec have a bug in their * ACPI tables where the MSSL1680 touchscreen's _PS0 and _PS3 methods * wrongly also set the speaker-enable GPIO to 1/0. Testing has shown * that this really is a bug and the GPIO has no influence on the * touchscreen at all. * * The silead.c touchscreen driver does not support runtime suspend, so * the GPIO can only be changed underneath us during a system suspend. * This resume() function runs from a pm complete() callback, and thus * is guaranteed to run after the touchscreen driver/ACPI-subsys has * brought the touchscreen back up again (and thus changed the GPIO). * * So to work around this we pass GPIOD_FLAGS_BIT_NONEXCLUSIVE when * requesting the GPIO and we set its value here to undo any changes * done by the touchscreen's broken _PS0 ACPI method. */ gpiod_set_value_cansleep(priv->speaker_en_gpio, priv->speaker_en); return 0; } static struct snd_soc_card byt_cht_es8316_card = { .name = "bytcht-es8316", .owner = THIS_MODULE, .dai_link = byt_cht_es8316_dais, .num_links = ARRAY_SIZE(byt_cht_es8316_dais), .dapm_widgets = byt_cht_es8316_widgets, .num_dapm_widgets = ARRAY_SIZE(byt_cht_es8316_widgets), .dapm_routes = byt_cht_es8316_audio_map, .num_dapm_routes = ARRAY_SIZE(byt_cht_es8316_audio_map), .controls = byt_cht_es8316_controls, .num_controls = ARRAY_SIZE(byt_cht_es8316_controls), .fully_routed = true, .suspend_pre = byt_cht_es8316_suspend, .resume_post = byt_cht_es8316_resume, }; static const struct x86_cpu_id baytrail_cpu_ids[] = { { X86_VENDOR_INTEL, 6, INTEL_FAM6_ATOM_SILVERMONT }, /* Valleyview */ {} }; static const struct acpi_gpio_params first_gpio = { 0, 0, false }; static const struct acpi_gpio_mapping byt_cht_es8316_gpios[] = { { "speaker-enable-gpios", &first_gpio, 1 }, { }, }; /* Please keep this list alphabetically sorted */ static const struct dmi_system_id byt_cht_es8316_quirk_table[] = { { /* Teclast X98 Plus II */ .matches = { DMI_MATCH(DMI_SYS_VENDOR, "TECLAST"), DMI_MATCH(DMI_PRODUCT_NAME, "X98 Plus II"), }, .driver_data = (void *)(BYT_CHT_ES8316_INTMIC_IN1_MAP | BYT_CHT_ES8316_JD_INVERTED), }, {} }; static int snd_byt_cht_es8316_mc_probe(struct platform_device *pdev) { static const char * const mic_name[] = { "in1", "in2" }; struct property_entry props[MAX_NO_PROPS] = {}; struct byt_cht_es8316_private *priv; const struct dmi_system_id *dmi_id; struct device *dev = &pdev->dev; struct snd_soc_acpi_mach *mach; const char *platform_name; struct acpi_device *adev; struct device *codec_dev; unsigned int cnt = 0; int dai_index = 0; int i; int ret = 0; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; mach = dev->platform_data; /* fix index of codec dai */ for (i = 0; i < ARRAY_SIZE(byt_cht_es8316_dais); i++) { if (!strcmp(byt_cht_es8316_dais[i].codec_name, "i2c-ESSX8316:00")) { dai_index = i; break; } } /* fixup codec name based on HID */ adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1); if (adev) { snprintf(codec_name, sizeof(codec_name), "i2c-%s", acpi_dev_name(adev)); put_device(&adev->dev); byt_cht_es8316_dais[dai_index].codec_name = codec_name; } /* override plaform name, if required */ byt_cht_es8316_card.dev = dev; platform_name = mach->mach_params.platform; ret = snd_soc_fixup_dai_links_platform_name(&byt_cht_es8316_card, platform_name); if (ret) return ret; /* Check for BYTCR or other platform and setup quirks */ dmi_id = dmi_first_match(byt_cht_es8316_quirk_table); if (dmi_id) { quirk = (unsigned long)dmi_id->driver_data; } else if (x86_match_cpu(baytrail_cpu_ids) && mach->mach_params.acpi_ipc_irq_index == 0) { /* On BYTCR default to SSP0, internal-mic-in2-map, mono-spk */ quirk = BYT_CHT_ES8316_SSP0 | BYT_CHT_ES8316_INTMIC_IN2_MAP | BYT_CHT_ES8316_MONO_SPEAKER; } else { /* Others default to internal-mic-in1-map, mono-speaker */ quirk = BYT_CHT_ES8316_INTMIC_IN1_MAP | BYT_CHT_ES8316_MONO_SPEAKER; } if (quirk_override != -1) { dev_info(dev, "Overriding quirk 0x%x => 0x%x\n", (unsigned int)quirk, quirk_override); quirk = quirk_override; } log_quirks(dev); if (quirk & BYT_CHT_ES8316_SSP0) byt_cht_es8316_dais[dai_index].cpu_dai_name = "ssp0-port"; /* get the clock */ priv->mclk = devm_clk_get(dev, "pmc_plt_clk_3"); if (IS_ERR(priv->mclk)) { ret = PTR_ERR(priv->mclk); dev_err(dev, "clk_get pmc_plt_clk_3 failed: %d\n", ret); return ret; } /* get speaker enable GPIO */ codec_dev = bus_find_device_by_name(&i2c_bus_type, NULL, codec_name); if (!codec_dev) return -EPROBE_DEFER; if (quirk & BYT_CHT_ES8316_JD_INVERTED) props[cnt++] = PROPERTY_ENTRY_BOOL("everest,jack-detect-inverted"); if (cnt) { ret = device_add_properties(codec_dev, props); if (ret) return ret; } devm_acpi_dev_add_driver_gpios(codec_dev, byt_cht_es8316_gpios); priv->speaker_en_gpio = gpiod_get_index(codec_dev, "speaker-enable", 0, /* see comment in byt_cht_es8316_resume */ GPIOD_OUT_LOW | GPIOD_FLAGS_BIT_NONEXCLUSIVE); put_device(codec_dev); if (IS_ERR(priv->speaker_en_gpio)) { ret = PTR_ERR(priv->speaker_en_gpio); switch (ret) { case -ENOENT: priv->speaker_en_gpio = NULL; break; default: dev_err(dev, "get speaker GPIO failed: %d\n", ret); /* fall through */ case -EPROBE_DEFER: return ret; } } /* register the soc card */ snprintf(long_name, sizeof(long_name), "bytcht-es8316-%s-spk-%s-mic", (quirk & BYT_CHT_ES8316_MONO_SPEAKER) ? "mono" : "stereo", mic_name[BYT_CHT_ES8316_MAP(quirk)]); byt_cht_es8316_card.long_name = long_name; snd_soc_card_set_drvdata(&byt_cht_es8316_card, priv); ret = devm_snd_soc_register_card(dev, &byt_cht_es8316_card); if (ret) { gpiod_put(priv->speaker_en_gpio); dev_err(dev, "snd_soc_register_card failed: %d\n", ret); return ret; } platform_set_drvdata(pdev, &byt_cht_es8316_card); return 0; } static int snd_byt_cht_es8316_mc_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev); struct byt_cht_es8316_private *priv = snd_soc_card_get_drvdata(card); gpiod_put(priv->speaker_en_gpio); return 0; } static struct platform_driver snd_byt_cht_es8316_mc_driver = { .driver = { .name = "bytcht_es8316", }, .probe = snd_byt_cht_es8316_mc_probe, .remove = snd_byt_cht_es8316_mc_remove, }; module_platform_driver(snd_byt_cht_es8316_mc_driver); MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail Machine driver"); MODULE_AUTHOR("David Yang "); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:bytcht_es8316");