// SPDX-License-Identifier: GPL-2.0-only /* * ASoC machine driver for Intel Broadwell platforms with RT5650 codec * * Copyright 2019, The Chromium OS Authors. All rights reserved. */ #include #include #include #include #include #include #include #include #include #include #include "../../codecs/rt5645.h" struct bdw_rt5650_priv { struct gpio_desc *gpio_hp_en; struct snd_soc_component *component; }; static const struct snd_soc_dapm_widget bdw_rt5650_widgets[] = { SND_SOC_DAPM_HP("Headphone", NULL), SND_SOC_DAPM_SPK("Speaker", NULL), SND_SOC_DAPM_MIC("Headset Mic", NULL), SND_SOC_DAPM_MIC("DMIC Pair1", NULL), SND_SOC_DAPM_MIC("DMIC Pair2", NULL), }; static const struct snd_soc_dapm_route bdw_rt5650_map[] = { /* Speakers */ {"Speaker", NULL, "SPOL"}, {"Speaker", NULL, "SPOR"}, /* Headset jack connectors */ {"Headphone", NULL, "HPOL"}, {"Headphone", NULL, "HPOR"}, {"IN1P", NULL, "Headset Mic"}, {"IN1N", NULL, "Headset Mic"}, /* Digital MICs * DMIC Pair1 are the two DMICs connected on the DMICN1 connector. * DMIC Pair2 are the two DMICs connected on the DMICN2 connector. * Facing the camera, DMIC Pair1 are on the left side, DMIC Pair2 * are on the right side. */ {"DMIC L1", NULL, "DMIC Pair1"}, {"DMIC R1", NULL, "DMIC Pair1"}, {"DMIC L2", NULL, "DMIC Pair2"}, {"DMIC R2", NULL, "DMIC Pair2"}, /* CODEC BE connections */ {"SSP0 CODEC IN", NULL, "AIF1 Capture"}, {"AIF1 Playback", NULL, "SSP0 CODEC OUT"}, }; static const struct snd_kcontrol_new bdw_rt5650_controls[] = { SOC_DAPM_PIN_SWITCH("Speaker"), SOC_DAPM_PIN_SWITCH("Headphone"), SOC_DAPM_PIN_SWITCH("Headset Mic"), SOC_DAPM_PIN_SWITCH("DMIC Pair1"), SOC_DAPM_PIN_SWITCH("DMIC Pair2"), }; static struct snd_soc_jack headphone_jack; static struct snd_soc_jack mic_jack; static struct snd_soc_jack_pin headphone_jack_pin = { .pin = "Headphone", .mask = SND_JACK_HEADPHONE, }; static struct snd_soc_jack_pin mic_jack_pin = { .pin = "Headset Mic", .mask = SND_JACK_MICROPHONE, }; static int broadwell_ssp0_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 *chan = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); /* The ADSP will covert the FE rate to 48k, max 4-channels */ rate->min = rate->max = 48000; chan->min = 2; chan->max = 4; /* set SSP0 to 24 bit */ snd_mask_set_format(hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT), SNDRV_PCM_FORMAT_S24_LE); return 0; } static int bdw_rt5650_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); int ret; /* Workaround: set codec PLL to 19.2MHz that PLL source is * from MCLK(24MHz) to conform 2.4MHz DMIC clock. */ ret = snd_soc_dai_set_pll(codec_dai, 0, RT5645_PLL1_S_MCLK, 24000000, 19200000); if (ret < 0) { dev_err(rtd->dev, "can't set codec pll: %d\n", ret); return ret; } /* The actual MCLK freq is 24MHz. The codec is told that MCLK is * 24.576MHz to satisfy the requirement of rl6231_get_clk_info. * ASRC is enabled on AD and DA filters to ensure good audio quality. */ ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_PLL1, 24576000, SND_SOC_CLOCK_IN); if (ret < 0) { dev_err(rtd->dev, "can't set codec sysclk configuration\n"); return ret; } return ret; } static struct snd_soc_ops bdw_rt5650_ops = { .hw_params = bdw_rt5650_hw_params, }; static const unsigned int channels[] = { 2, 4, }; static const struct snd_pcm_hw_constraint_list constraints_channels = { .count = ARRAY_SIZE(channels), .list = channels, .mask = 0, }; static int bdw_rt5650_fe_startup(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; /* Board supports stereo and quad configurations for capture */ if (substream->stream != SNDRV_PCM_STREAM_CAPTURE) return 0; runtime->hw.channels_max = 4; return snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, &constraints_channels); } static const struct snd_soc_ops bdw_rt5650_fe_ops = { .startup = bdw_rt5650_fe_startup, }; static int bdw_rt5650_init(struct snd_soc_pcm_runtime *rtd) { struct bdw_rt5650_priv *bdw_rt5650 = snd_soc_card_get_drvdata(rtd->card); struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); struct snd_soc_component *component = codec_dai->component; int ret; /* Enable codec ASRC function for Stereo DAC/Stereo1 ADC/DMIC/I2S1. * The ASRC clock source is clk_i2s1_asrc. */ rt5645_sel_asrc_clk_src(component, RT5645_DA_STEREO_FILTER | RT5645_DA_MONO_L_FILTER | RT5645_DA_MONO_R_FILTER | RT5645_AD_STEREO_FILTER | RT5645_AD_MONO_L_FILTER | RT5645_AD_MONO_R_FILTER, RT5645_CLK_SEL_I2S1_ASRC); /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */ ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 24); if (ret < 0) { dev_err(rtd->dev, "can't set codec TDM slot %d\n", ret); return ret; } /* Create and initialize headphone jack */ if (snd_soc_card_jack_new(rtd->card, "Headphone Jack", SND_JACK_HEADPHONE, &headphone_jack, &headphone_jack_pin, 1)) { dev_err(component->dev, "Can't create headphone jack\n"); } /* Create and initialize mic jack */ if (snd_soc_card_jack_new(rtd->card, "Mic Jack", SND_JACK_MICROPHONE, &mic_jack, &mic_jack_pin, 1)) { dev_err(component->dev, "Can't create mic jack\n"); } rt5645_set_jack_detect(component, &headphone_jack, &mic_jack, NULL); bdw_rt5650->component = component; return 0; } /* broadwell digital audio interface glue - connects codec <--> CPU */ SND_SOC_DAILINK_DEF(dummy, DAILINK_COMP_ARRAY(COMP_DUMMY())); SND_SOC_DAILINK_DEF(fe, DAILINK_COMP_ARRAY(COMP_CPU("System Pin"))); SND_SOC_DAILINK_DEF(platform, DAILINK_COMP_ARRAY(COMP_PLATFORM("haswell-pcm-audio"))); SND_SOC_DAILINK_DEF(be, DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10EC5650:00", "rt5645-aif1"))); SND_SOC_DAILINK_DEF(ssp0_port, DAILINK_COMP_ARRAY(COMP_CPU("ssp0-port"))); static struct snd_soc_dai_link bdw_rt5650_dais[] = { /* Front End DAI links */ { .name = "System PCM", .stream_name = "System Playback", .nonatomic = 1, .dynamic = 1, .ops = &bdw_rt5650_fe_ops, .trigger = { SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST }, .dpcm_playback = 1, .dpcm_capture = 1, SND_SOC_DAILINK_REG(fe, dummy, platform), }, /* Back End DAI links */ { /* SSP0 - Codec */ .name = "Codec", .id = 0, .no_pcm = 1, .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC, .ignore_pmdown_time = 1, .be_hw_params_fixup = broadwell_ssp0_fixup, .ops = &bdw_rt5650_ops, .dpcm_playback = 1, .dpcm_capture = 1, .init = bdw_rt5650_init, SND_SOC_DAILINK_REG(ssp0_port, be, platform), }, }; /* use space before codec name to simplify card ID, and simplify driver name */ #define SOF_CARD_NAME "bdw rt5650" /* card name will be 'sof-bdw rt5650' */ #define SOF_DRIVER_NAME "SOF" #define CARD_NAME "bdw-rt5650" #define DRIVER_NAME NULL /* card name will be used for driver name */ /* ASoC machine driver for Broadwell DSP + RT5650 */ static struct snd_soc_card bdw_rt5650_card = { .name = CARD_NAME, .driver_name = DRIVER_NAME, .owner = THIS_MODULE, .dai_link = bdw_rt5650_dais, .num_links = ARRAY_SIZE(bdw_rt5650_dais), .dapm_widgets = bdw_rt5650_widgets, .num_dapm_widgets = ARRAY_SIZE(bdw_rt5650_widgets), .dapm_routes = bdw_rt5650_map, .num_dapm_routes = ARRAY_SIZE(bdw_rt5650_map), .controls = bdw_rt5650_controls, .num_controls = ARRAY_SIZE(bdw_rt5650_controls), .fully_routed = true, }; static int bdw_rt5650_probe(struct platform_device *pdev) { struct bdw_rt5650_priv *bdw_rt5650; struct snd_soc_acpi_mach *mach; int ret; bdw_rt5650_card.dev = &pdev->dev; /* Allocate driver private struct */ bdw_rt5650 = devm_kzalloc(&pdev->dev, sizeof(struct bdw_rt5650_priv), GFP_KERNEL); if (!bdw_rt5650) return -ENOMEM; /* override plaform name, if required */ mach = pdev->dev.platform_data; ret = snd_soc_fixup_dai_links_platform_name(&bdw_rt5650_card, mach->mach_params.platform); if (ret) return ret; /* set card and driver name */ if (snd_soc_acpi_sof_parent(&pdev->dev)) { bdw_rt5650_card.name = SOF_CARD_NAME; bdw_rt5650_card.driver_name = SOF_DRIVER_NAME; } else { bdw_rt5650_card.name = CARD_NAME; bdw_rt5650_card.driver_name = DRIVER_NAME; } snd_soc_card_set_drvdata(&bdw_rt5650_card, bdw_rt5650); return devm_snd_soc_register_card(&pdev->dev, &bdw_rt5650_card); } static struct platform_driver bdw_rt5650_audio = { .probe = bdw_rt5650_probe, .driver = { .name = "bdw-rt5650", .pm = &snd_soc_pm_ops, }, }; module_platform_driver(bdw_rt5650_audio) /* Module information */ MODULE_AUTHOR("Ben Zhang "); MODULE_DESCRIPTION("Intel Broadwell RT5650 machine driver"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:bdw-rt5650");