/* * bytcr_rt5651.c - ASoc Machine driver for Intel Byt CR platform * (derived from bytcr_rt5640.c) * * Copyright (C) 2015 Intel Corp * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * * 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 "../../codecs/rt5651.h" #include "../atom/sst-atom-controls.h" static const struct snd_soc_dapm_widget byt_rt5651_widgets[] = { SND_SOC_DAPM_HP("Headphone", NULL), SND_SOC_DAPM_MIC("Headset Mic", NULL), SND_SOC_DAPM_MIC("Internal Mic", NULL), SND_SOC_DAPM_SPK("Speaker", NULL), }; static const struct snd_soc_dapm_route byt_rt5651_audio_map[] = { {"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"}, {"Headset Mic", NULL, "micbias1"}, /* lowercase for rt5651 */ {"IN2P", NULL, "Headset Mic"}, {"Headphone", NULL, "HPOL"}, {"Headphone", NULL, "HPOR"}, {"Speaker", NULL, "LOUTL"}, {"Speaker", NULL, "LOUTR"}, }; static const struct snd_soc_dapm_route byt_rt5651_intmic_dmic1_map[] = { {"DMIC1", NULL, "Internal Mic"}, }; static const struct snd_soc_dapm_route byt_rt5651_intmic_dmic2_map[] = { {"DMIC2", NULL, "Internal Mic"}, }; static const struct snd_soc_dapm_route byt_rt5651_intmic_in1_map[] = { {"Internal Mic", NULL, "micbias1"}, {"IN1P", NULL, "Internal Mic"}, }; enum { BYT_RT5651_DMIC1_MAP, BYT_RT5651_DMIC2_MAP, BYT_RT5651_IN1_MAP, }; #define BYT_RT5651_MAP(quirk) ((quirk) & 0xff) #define BYT_RT5651_DMIC_EN BIT(16) static unsigned long byt_rt5651_quirk = BYT_RT5651_DMIC1_MAP | BYT_RT5651_DMIC_EN; static const struct snd_kcontrol_new byt_rt5651_controls[] = { SOC_DAPM_PIN_SWITCH("Headphone"), SOC_DAPM_PIN_SWITCH("Headset Mic"), SOC_DAPM_PIN_SWITCH("Internal Mic"), SOC_DAPM_PIN_SWITCH("Speaker"), }; static int byt_rt5651_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, RT5651_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, RT5651_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 dmi_system_id byt_rt5651_quirk_table[] = { {} }; static int byt_rt5651_init(struct snd_soc_pcm_runtime *runtime) { int ret; struct snd_soc_card *card = runtime->card; const struct snd_soc_dapm_route *custom_map; int num_routes; card->dapm.idle_bias_off = true; dmi_check_system(byt_rt5651_quirk_table); switch (BYT_RT5651_MAP(byt_rt5651_quirk)) { case BYT_RT5651_IN1_MAP: custom_map = byt_rt5651_intmic_in1_map; num_routes = ARRAY_SIZE(byt_rt5651_intmic_in1_map); break; case BYT_RT5651_DMIC2_MAP: custom_map = byt_rt5651_intmic_dmic2_map; num_routes = ARRAY_SIZE(byt_rt5651_intmic_dmic2_map); break; default: custom_map = byt_rt5651_intmic_dmic1_map; num_routes = ARRAY_SIZE(byt_rt5651_intmic_dmic1_map); } ret = snd_soc_add_card_controls(card, byt_rt5651_controls, ARRAY_SIZE(byt_rt5651_controls)); if (ret) { dev_err(card->dev, "unable to add card controls\n"); return ret; } snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone"); snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker"); return ret; } static const struct snd_soc_pcm_stream byt_rt5651_dai_params = { .formats = SNDRV_PCM_FMTBIT_S24_LE, .rate_min = 48000, .rate_max = 48000, .channels_min = 2, .channels_max = 2, }; static int byt_rt5651_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; /* 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 */ 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 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_rt5651_aif1_startup(struct snd_pcm_substream *substream) { return snd_pcm_hw_constraint_list(substream->runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &constraints_48000); } static const struct snd_soc_ops byt_rt5651_aif1_ops = { .startup = byt_rt5651_aif1_startup, }; static const struct snd_soc_ops byt_rt5651_be_ssp2_ops = { .hw_params = byt_rt5651_aif1_hw_params, }; static struct snd_soc_dai_link byt_rt5651_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", .ignore_suspend = 1, .nonatomic = true, .dynamic = 1, .dpcm_playback = 1, .dpcm_capture = 1, .ops = &byt_rt5651_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", .ignore_suspend = 1, .nonatomic = true, .dynamic = 1, .dpcm_playback = 1, .ops = &byt_rt5651_aif1_ops, }, [MERR_DPCM_COMPR] = { .name = "Compressed Port", .stream_name = "Compress", .cpu_dai_name = "compress-cpu-dai", .codec_dai_name = "snd-soc-dummy-dai", .codec_name = "snd-soc-dummy", .platform_name = "sst-mfld-platform", }, /* CODEC<->CODEC link */ /* back ends */ { .name = "SSP2-Codec", .id = 1, .cpu_dai_name = "ssp2-port", .platform_name = "sst-mfld-platform", .no_pcm = 1, .codec_dai_name = "rt5651-aif1", .codec_name = "i2c-10EC5651:00", .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS, .be_hw_params_fixup = byt_rt5651_codec_fixup, .ignore_suspend = 1, .nonatomic = true, .dpcm_playback = 1, .dpcm_capture = 1, .init = byt_rt5651_init, .ops = &byt_rt5651_be_ssp2_ops, }, }; /* SoC card */ static struct snd_soc_card byt_rt5651_card = { .name = "bytcr-rt5651", .owner = THIS_MODULE, .dai_link = byt_rt5651_dais, .num_links = ARRAY_SIZE(byt_rt5651_dais), .dapm_widgets = byt_rt5651_widgets, .num_dapm_widgets = ARRAY_SIZE(byt_rt5651_widgets), .dapm_routes = byt_rt5651_audio_map, .num_dapm_routes = ARRAY_SIZE(byt_rt5651_audio_map), .fully_routed = true, }; static int snd_byt_rt5651_mc_probe(struct platform_device *pdev) { int ret_val = 0; /* register the soc card */ byt_rt5651_card.dev = &pdev->dev; ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5651_card); if (ret_val) { dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n", ret_val); return ret_val; } platform_set_drvdata(pdev, &byt_rt5651_card); return ret_val; } static struct platform_driver snd_byt_rt5651_mc_driver = { .driver = { .name = "bytcr_rt5651", }, .probe = snd_byt_rt5651_mc_probe, }; module_platform_driver(snd_byt_rt5651_mc_driver); MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver for RT5651"); MODULE_AUTHOR("Pierre-Louis Bossart "); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:bytcr_rt5651");