// SPDX-License-Identifier: GPL-2.0-only // // ASoC DPCM Machine driver for Baytrail / Cherrytrail platforms with // CX2072X codec // #include #include #include #include #include #include #include #include #include #include #include #include "../../codecs/cx2072x.h" #include "../atom/sst-atom-controls.h" static const struct snd_soc_dapm_widget byt_cht_cx2072x_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_cht_cx2072x_audio_map[] = { /* External Speakers: HFL, HFR */ {"Headphone", NULL, "PORTA"}, {"Ext Spk", NULL, "PORTG"}, {"PORTC", NULL, "Int Mic"}, {"PORTD", 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 byt_cht_cx2072x_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 byt_cht_cx2072x_headset; /* Headset jack detection DAPM pins */ static struct snd_soc_jack_pin byt_cht_cx2072x_headset_pins[] = { { .pin = "Headset Mic", .mask = SND_JACK_MICROPHONE, }, { .pin = "Headphone", .mask = SND_JACK_HEADPHONE, }, }; static const struct acpi_gpio_params byt_cht_cx2072x_headset_gpios; static const struct acpi_gpio_mapping byt_cht_cx2072x_acpi_gpios[] = { { "headset-gpios", &byt_cht_cx2072x_headset_gpios, 1 }, {}, }; static int byt_cht_cx2072x_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_card *card = rtd->card; struct snd_soc_component *codec = snd_soc_rtd_to_codec(rtd, 0)->component; int ret; if (devm_acpi_dev_add_driver_gpios(codec->dev, byt_cht_cx2072x_acpi_gpios)) dev_warn(rtd->dev, "Unable to add GPIO mapping table\n"); card->dapm.idle_bias_off = true; /* set the default PLL rate, the clock is handled by the codec driver */ ret = snd_soc_dai_set_sysclk(snd_soc_rtd_to_codec(rtd, 0), CX2072X_MCLK_EXTERNAL_PLL, 19200000, SND_SOC_CLOCK_IN); if (ret) { dev_err(rtd->dev, "Could not set sysclk\n"); return ret; } ret = snd_soc_card_jack_new_pins(card, "Headset", SND_JACK_HEADSET | SND_JACK_BTN_0, &byt_cht_cx2072x_headset, byt_cht_cx2072x_headset_pins, ARRAY_SIZE(byt_cht_cx2072x_headset_pins)); if (ret) return ret; snd_soc_component_set_jack(codec, &byt_cht_cx2072x_headset, NULL); snd_soc_dai_set_bclk_ratio(snd_soc_rtd_to_codec(rtd, 0), 50); return 0; } static int byt_cht_cx2072x_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; /* The DSP will convert the FE rate to 48k, stereo, 24bits */ rate->min = rate->max = 48000; channels->min = channels->max = 2; /* set SSP2 to 24-bit */ params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); /* * 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(snd_soc_rtd_to_cpu(rtd, 0), SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_BP_FP); 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(snd_soc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2, 24); if (ret < 0) { dev_err(rtd->dev, "can't set I2S config, err %d\n", ret); return ret; } return 0; } static int byt_cht_cx2072x_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_cx2072x_aif1_ops = { .startup = byt_cht_cx2072x_aif1_startup, }; 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(ssp2, DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port"))); SND_SOC_DAILINK_DEF(cx2072x, DAILINK_COMP_ARRAY(COMP_CODEC("i2c-14F10720:00", "cx2072x-hifi"))); SND_SOC_DAILINK_DEF(platform, DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform"))); static struct snd_soc_dai_link byt_cht_cx2072x_dais[] = { [MERR_DPCM_AUDIO] = { .name = "Audio Port", .stream_name = "Audio", .nonatomic = true, .dynamic = 1, .dpcm_playback = 1, .dpcm_capture = 1, .ops = &byt_cht_cx2072x_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 = &byt_cht_cx2072x_aif1_ops, SND_SOC_DAILINK_REG(deepbuffer, dummy, platform), }, /* back ends */ { .name = "SSP2-Codec", .id = 0, .no_pcm = 1, .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC, .init = byt_cht_cx2072x_init, .be_hw_params_fixup = byt_cht_cx2072x_fixup, .dpcm_playback = 1, .dpcm_capture = 1, SND_SOC_DAILINK_REG(ssp2, cx2072x, platform), }, }; /* use space before codec name to simplify card ID, and simplify driver name */ #define SOF_CARD_NAME "bytcht cx2072x" /* card name will be 'sof-bytcht cx2072x' */ #define SOF_DRIVER_NAME "SOF" #define CARD_NAME "bytcht-cx2072x" #define DRIVER_NAME NULL /* card name will be used for driver name */ /* SoC card */ static struct snd_soc_card byt_cht_cx2072x_card = { .name = CARD_NAME, .driver_name = DRIVER_NAME, .owner = THIS_MODULE, .dai_link = byt_cht_cx2072x_dais, .num_links = ARRAY_SIZE(byt_cht_cx2072x_dais), .dapm_widgets = byt_cht_cx2072x_widgets, .num_dapm_widgets = ARRAY_SIZE(byt_cht_cx2072x_widgets), .dapm_routes = byt_cht_cx2072x_audio_map, .num_dapm_routes = ARRAY_SIZE(byt_cht_cx2072x_audio_map), .controls = byt_cht_cx2072x_controls, .num_controls = ARRAY_SIZE(byt_cht_cx2072x_controls), }; static char codec_name[SND_ACPI_I2C_ID_LEN]; static int snd_byt_cht_cx2072x_probe(struct platform_device *pdev) { struct snd_soc_acpi_mach *mach; struct acpi_device *adev; int dai_index = 0; bool sof_parent; int i, ret; byt_cht_cx2072x_card.dev = &pdev->dev; mach = dev_get_platdata(&pdev->dev); /* fix index of codec dai */ for (i = 0; i < ARRAY_SIZE(byt_cht_cx2072x_dais); i++) { if (byt_cht_cx2072x_dais[i].num_codecs && !strcmp(byt_cht_cx2072x_dais[i].codecs->name, "i2c-14F10720:00")) { 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)); byt_cht_cx2072x_dais[dai_index].codecs->name = codec_name; } else { dev_err(&pdev->dev, "Error cannot find '%s' dev\n", mach->id); return -ENOENT; } acpi_dev_put(adev); /* override platform name, if required */ ret = snd_soc_fixup_dai_links_platform_name(&byt_cht_cx2072x_card, mach->mach_params.platform); if (ret) return ret; sof_parent = snd_soc_acpi_sof_parent(&pdev->dev); /* set card and driver name */ if (sof_parent) { byt_cht_cx2072x_card.name = SOF_CARD_NAME; byt_cht_cx2072x_card.driver_name = SOF_DRIVER_NAME; } else { byt_cht_cx2072x_card.name = CARD_NAME; byt_cht_cx2072x_card.driver_name = DRIVER_NAME; } /* set pm ops */ if (sof_parent) pdev->dev.driver->pm = &snd_soc_pm_ops; return devm_snd_soc_register_card(&pdev->dev, &byt_cht_cx2072x_card); } static struct platform_driver snd_byt_cht_cx2072x_driver = { .driver = { .name = "bytcht_cx2072x", }, .probe = snd_byt_cht_cx2072x_probe, }; module_platform_driver(snd_byt_cht_cx2072x_driver); MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail Machine driver"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:bytcht_cx2072x");