Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Pierre-Louis Bossart | 666 | 86.16% | 2 | 20.00% |
Kuninori Morimoto | 100 | 12.94% | 3 | 30.00% |
Thomas Gleixner | 2 | 0.26% | 1 | 10.00% |
Takashi Iwai | 2 | 0.26% | 1 | 10.00% |
Charles Keepax | 1 | 0.13% | 1 | 10.00% |
Rikard Falkeborn | 1 | 0.13% | 1 | 10.00% |
Peter Ujfalusi | 1 | 0.13% | 1 | 10.00% |
Total | 773 | 10 |
// SPDX-License-Identifier: GPL-2.0-only /* * bytcht_nocodec.c - ASoc Machine driver for MinnowBoard Max and Up * to make I2S signals observable on the Low-Speed connector. Audio codec * is not managed by ASoC/DAPM * * Copyright (C) 2015-2017 Intel Corp * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ #include <linux/module.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include "../atom/sst-atom-controls.h" static const struct snd_soc_dapm_widget widgets[] = { SND_SOC_DAPM_MIC("Mic", NULL), SND_SOC_DAPM_SPK("Speaker", NULL), }; static const struct snd_kcontrol_new controls[] = { SOC_DAPM_PIN_SWITCH("Mic"), SOC_DAPM_PIN_SWITCH("Speaker"), }; static const struct snd_soc_dapm_route audio_map[] = { {"ssp2 Tx", NULL, "codec_out0"}, {"ssp2 Tx", NULL, "codec_out1"}, {"codec_in0", NULL, "ssp2 Rx"}, {"codec_in1", NULL, "ssp2 Rx"}, {"ssp2 Rx", NULL, "Mic"}, {"Speaker", NULL, "ssp2 Tx"}, }; static int 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 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(snd_soc_rtd_to_cpu(rtd, 0), SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_BP_FP); 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(snd_soc_rtd_to_cpu(rtd, 0), 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 const unsigned int rates_48000[] = { 48000, }; static const struct snd_pcm_hw_constraint_list constraints_48000 = { .count = ARRAY_SIZE(rates_48000), .list = rates_48000, }; static int 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 aif1_ops = { .startup = aif1_startup, }; 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(platform, DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform"))); static struct snd_soc_dai_link dais[] = { [MERR_DPCM_AUDIO] = { .name = "Audio Port", .stream_name = "Audio", .ignore_suspend = 1, .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", .ignore_suspend = 1, .nonatomic = true, .dynamic = 1, .dpcm_playback = 1, .ops = &aif1_ops, SND_SOC_DAILINK_REG(deepbuffer, dummy, platform), }, /* CODEC<->CODEC link */ /* back ends */ { .name = "SSP2-LowSpeed Connector", .id = 0, .no_pcm = 1, .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBC_CFC, .be_hw_params_fixup = codec_fixup, .ignore_suspend = 1, .dpcm_playback = 1, .dpcm_capture = 1, SND_SOC_DAILINK_REG(ssp2_port, dummy, platform), }, }; /* SoC card */ static struct snd_soc_card bytcht_nocodec_card = { .name = "bytcht-nocodec", .owner = THIS_MODULE, .dai_link = dais, .num_links = ARRAY_SIZE(dais), .dapm_widgets = widgets, .num_dapm_widgets = ARRAY_SIZE(widgets), .dapm_routes = audio_map, .num_dapm_routes = ARRAY_SIZE(audio_map), .controls = controls, .num_controls = ARRAY_SIZE(controls), .fully_routed = true, }; static int snd_bytcht_nocodec_mc_probe(struct platform_device *pdev) { int ret_val = 0; /* register the soc card */ bytcht_nocodec_card.dev = &pdev->dev; ret_val = devm_snd_soc_register_card(&pdev->dev, &bytcht_nocodec_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, &bytcht_nocodec_card); return ret_val; } static struct platform_driver snd_bytcht_nocodec_mc_driver = { .driver = { .name = "bytcht_nocodec", }, .probe = snd_bytcht_nocodec_mc_probe, }; module_platform_driver(snd_bytcht_nocodec_mc_driver); MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail Nocodec Machine driver"); MODULE_AUTHOR("Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:bytcht_nocodec");
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