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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 | /* * byt_cr_dpcm_rt5640.c - ASoc Machine driver for Intel Byt CR platform * * Copyright (C) 2014 Intel Corp * Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com> * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * * 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 <linux/init.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/device.h> #include <linux/slab.h> #include <linux/input.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include "../../codecs/rt5640.h" #include "../atom/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 */ params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); return 0; } static int byt_aif1_startup(struct snd_pcm_substream *substream) { return snd_pcm_hw_constraint_single(substream->runtime, SNDRV_PCM_HW_PARAM_RATE, 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", .owner = THIS_MODULE, .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 = { .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 <subhransu.s.prusty@intel.com>"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:bytt100_rt5640"); |