/* * byt_cr_dpcm_rt5640.c - ASoc Machine driver for Intel Byt CR platform * * Copyright (C) 2014 Intel Corp * Author: Subhransu S. Prusty * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * * 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 "../codecs/rt5640.h" #include "sst-atom-controls.h" static const struct snd_soc_dapm_widget byt_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), }; static const struct snd_soc_dapm_route byt_audio_map[] = { {"IN2P", NULL, "Headset Mic"}, {"IN2N", NULL, "Headset Mic"}, {"Headset Mic", NULL, "MICBIAS1"}, {"IN1P", NULL, "MICBIAS1"}, {"LDO2", NULL, "Int Mic"}, {"Headphone", NULL, "HPOL"}, {"Headphone", NULL, "HPOR"}, {"Ext Spk", NULL, "SPOLP"}, {"Ext Spk", NULL, "SPOLN"}, {"Ext Spk", NULL, "SPORP"}, {"Ext Spk", NULL, "SPORN"}, {"AIF1 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, "AIF1 Capture"}, }; static const struct snd_kcontrol_new byt_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 byt_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; snd_soc_dai_set_bclk_ratio(codec_dai, 50); ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1, params_rate(params) * 512, SND_SOC_CLOCK_IN); if (ret < 0) { dev_err(rtd->dev, "can't set codec clock %d\n", ret); return ret; } ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_BCLK1, params_rate(params) * 50, params_rate(params) * 512); if (ret < 0) { dev_err(rtd->dev, "can't set codec pll: %d\n", ret); return ret; } return 0; } static const struct snd_soc_pcm_stream byt_dai_params = { .formats = SNDRV_PCM_FMTBIT_S24_LE, .rate_min = 48000, .rate_max = 48000, .channels_min = 2, .channels_max = 2, }; static int byt_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); /* The DSP will covert the FE rate to 48k, stereo, 24bits */ rate->min = rate->max = 48000; channels->min = channels->max = 2; /* set SSP2 to 24-bit */ snd_mask_set(¶ms->masks[SNDRV_PCM_HW_PARAM_FORMAT - SNDRV_PCM_HW_PARAM_FIRST_MASK], SNDRV_PCM_FORMAT_S24_LE); return 0; } static unsigned int rates_48000[] = { 48000, }; static struct snd_pcm_hw_constraint_list constraints_48000 = { .count = ARRAY_SIZE(rates_48000), .list = rates_48000, }; static int byt_aif1_startup(struct snd_pcm_substream *substream) { return snd_pcm_hw_constraint_list(substream->runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &constraints_48000); } static struct snd_soc_ops byt_aif1_ops = { .startup = byt_aif1_startup, }; static struct snd_soc_ops byt_be_ssp2_ops = { .hw_params = byt_aif1_hw_params, }; static struct snd_soc_dai_link byt_dailink[] = { [MERR_DPCM_AUDIO] = { .name = "Baytrail Audio Port", .stream_name = "Baytrail Audio", .cpu_dai_name = "media-cpu-dai", .codec_dai_name = "snd-soc-dummy-dai", .codec_name = "snd-soc-dummy", .platform_name = "sst-mfld-platform", .ignore_suspend = 1, .dynamic = 1, .dpcm_playback = 1, .dpcm_capture = 1, .ops = &byt_aif1_ops, }, [MERR_DPCM_COMPR] = { .name = "Baytrail Compressed Port", .stream_name = "Baytrail Compress", .cpu_dai_name = "compress-cpu-dai", .codec_dai_name = "snd-soc-dummy-dai", .codec_name = "snd-soc-dummy", .platform_name = "sst-mfld-platform", }, /* back ends */ { .name = "SSP2-Codec", .be_id = 1, .cpu_dai_name = "ssp2-port", .platform_name = "sst-mfld-platform", .no_pcm = 1, .codec_dai_name = "rt5640-aif1", .codec_name = "i2c-10EC5640:00", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS, .be_hw_params_fixup = byt_codec_fixup, .ignore_suspend = 1, .dpcm_playback = 1, .dpcm_capture = 1, .ops = &byt_be_ssp2_ops, }, }; /* SoC card */ static struct snd_soc_card snd_soc_card_byt = { .name = "baytrailcraudio", .dai_link = byt_dailink, .num_links = ARRAY_SIZE(byt_dailink), .dapm_widgets = byt_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(byt_dapm_widgets), .dapm_routes = byt_audio_map, .num_dapm_routes = ARRAY_SIZE(byt_audio_map), .controls = byt_mc_controls, .num_controls = ARRAY_SIZE(byt_mc_controls), }; static int snd_byt_mc_probe(struct platform_device *pdev) { int ret_val = 0; /* register the soc card */ snd_soc_card_byt.dev = &pdev->dev; ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_byt); if (ret_val) { dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n", ret_val); return ret_val; } platform_set_drvdata(pdev, &snd_soc_card_byt); return ret_val; } static struct platform_driver snd_byt_mc_driver = { .driver = { .owner = THIS_MODULE, .name = "bytt100_rt5640", .pm = &snd_soc_pm_ops, }, .probe = snd_byt_mc_probe, }; module_platform_driver(snd_byt_mc_driver); MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver"); MODULE_AUTHOR("Subhransu S. Prusty "); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:bytrt5640-audio");