// SPDX-License-Identifier: GPL-2.0-only /* * bytcht-da7213.c - ASoc Machine driver for Intel Baytrail and * Cherrytrail-based platforms, with Dialog DA7213 codec * * Copyright (C) 2017 Intel Corporation * Author: Pierre-Louis Bossart * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ #include #include #include #include #include #include #include #include #include "../../codecs/da7213.h" #include "../atom/sst-atom-controls.h" static const struct snd_kcontrol_new controls[] = { SOC_DAPM_PIN_SWITCH("Headphone Jack"), SOC_DAPM_PIN_SWITCH("Headset Mic"), SOC_DAPM_PIN_SWITCH("Mic"), SOC_DAPM_PIN_SWITCH("Aux In"), }; static const struct snd_soc_dapm_widget dapm_widgets[] = { SND_SOC_DAPM_HP("Headphone Jack", NULL), SND_SOC_DAPM_MIC("Headset Mic", NULL), SND_SOC_DAPM_MIC("Mic", NULL), SND_SOC_DAPM_LINE("Aux In", NULL), }; static const struct snd_soc_dapm_route audio_map[] = { {"Headphone Jack", NULL, "HPL"}, {"Headphone Jack", NULL, "HPR"}, {"AUXL", NULL, "Aux In"}, {"AUXR", NULL, "Aux In"}, /* Assume Mic1 is linked to Headset and Mic2 to on-board mic */ {"MIC1", NULL, "Headset Mic"}, {"MIC2", NULL, "Mic"}, /* SOC-codec link */ {"ssp2 Tx", NULL, "codec_out0"}, {"ssp2 Tx", NULL, "codec_out1"}, {"codec_in0", NULL, "ssp2 Rx"}, {"codec_in1", NULL, "ssp2 Rx"}, {"Playback", NULL, "ssp2 Tx"}, {"ssp2 Rx", NULL, "Capture"}, }; static int codec_fixup(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_params *params) { int ret; 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); /* 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(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, 24); if (ret < 0) { dev_err(rtd->dev, "can't set I2S config, err %d\n", ret); return ret; } return 0; } static int aif1_startup(struct snd_pcm_substream *substream) { return snd_pcm_hw_constraint_single(substream->runtime, SNDRV_PCM_HW_PARAM_RATE, 48000); } static int 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, DA7213_CLKSRC_MCLK, 19200000, SND_SOC_CLOCK_IN); if (ret < 0) dev_err(codec_dai->dev, "can't set codec sysclk configuration\n"); ret = snd_soc_dai_set_pll(codec_dai, 0, DA7213_SYSCLK_PLL_SRM, 0, DA7213_PLL_FREQ_OUT_98304000); if (ret < 0) { dev_err(codec_dai->dev, "failed to start PLL: %d\n", ret); return -EIO; } return ret; } static int aif1_hw_free(struct snd_pcm_substream *substream) { 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_pll(codec_dai, 0, DA7213_SYSCLK_MCLK, 0, 0); if (ret < 0) { dev_err(codec_dai->dev, "failed to stop PLL: %d\n", ret); return -EIO; } return ret; } static const struct snd_soc_ops aif1_ops = { .startup = aif1_startup, }; static const struct snd_soc_ops ssp2_ops = { .hw_params = aif1_hw_params, .hw_free = aif1_hw_free, }; 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_port, DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port"))); SND_SOC_DAILINK_DEF(ssp2_codec, DAILINK_COMP_ARRAY(COMP_CODEC("i2c-DLGS7213:00", "da7213-hifi"))); SND_SOC_DAILINK_DEF(platform, DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform"))); static struct snd_soc_dai_link dailink[] = { [MERR_DPCM_AUDIO] = { .name = "Audio Port", .stream_name = "Audio", .nonatomic = true, .dynamic = 1, .dpcm_playback = 1, .dpcm_capture = 1, .ops = &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 = &aif1_ops, SND_SOC_DAILINK_REG(deepbuffer, dummy, platform), }, /* CODEC<->CODEC link */ /* back ends */ { .name = "SSP2-Codec", .id = 0, .no_pcm = 1, .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS, .be_hw_params_fixup = codec_fixup, .nonatomic = true, .dpcm_playback = 1, .dpcm_capture = 1, .ops = &ssp2_ops, SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform), }, }; /* SoC card */ static struct snd_soc_card bytcht_da7213_card = { .name = "bytcht-da7213", .owner = THIS_MODULE, .dai_link = dailink, .num_links = ARRAY_SIZE(dailink), .controls = controls, .num_controls = ARRAY_SIZE(controls), .dapm_widgets = dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(dapm_widgets), .dapm_routes = audio_map, .num_dapm_routes = ARRAY_SIZE(audio_map), }; static char codec_name[SND_ACPI_I2C_ID_LEN]; static int bytcht_da7213_probe(struct platform_device *pdev) { struct snd_soc_card *card; struct snd_soc_acpi_mach *mach; const char *platform_name; struct acpi_device *adev; int dai_index = 0; int ret_val = 0; int i; mach = (&pdev->dev)->platform_data; card = &bytcht_da7213_card; card->dev = &pdev->dev; /* fix index of codec dai */ for (i = 0; i < ARRAY_SIZE(dailink); i++) { if (!strcmp(dailink[i].codecs->name, "i2c-DLGS7213:00")) { 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); dailink[dai_index].codecs->name = codec_name; } /* override plaform name, if required */ platform_name = mach->mach_params.platform; ret_val = snd_soc_fixup_dai_links_platform_name(card, platform_name); if (ret_val) return ret_val; ret_val = devm_snd_soc_register_card(&pdev->dev, card); if (ret_val) { dev_err(&pdev->dev, "snd_soc_register_card failed %d\n", ret_val); return ret_val; } platform_set_drvdata(pdev, card); return ret_val; } static struct platform_driver bytcht_da7213_driver = { .driver = { .name = "bytcht_da7213", }, .probe = bytcht_da7213_probe, }; module_platform_driver(bytcht_da7213_driver); MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail+DA7213 Machine driver"); MODULE_AUTHOR("Pierre-Louis Bossart"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:bytcht_da7213");