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312 lines
8.4 KiB
312 lines
8.4 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* cht-bsw-nau8824.c - ASoc Machine driver for Intel Cherryview-based |
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* platforms Cherrytrail and Braswell, with nau8824 codec. |
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* |
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* Copyright (C) 2018 Intel Corp |
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* Copyright (C) 2018 Nuvoton Technology Corp |
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* |
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* Author: Wang, Joseph C <[email protected]> |
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* Co-author: John Hsu <[email protected]> |
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* This file is based on cht_bsw_rt5672.c and cht-bsw-max98090.c |
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*/ |
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#include <linux/module.h> |
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#include <linux/platform_device.h> |
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#include <linux/slab.h> |
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#include <sound/pcm.h> |
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#include <sound/pcm_params.h> |
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#include <sound/soc.h> |
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#include <sound/soc-acpi.h> |
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#include <sound/jack.h> |
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#include <linux/input.h> |
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#include "../atom/sst-atom-controls.h" |
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#include "../../codecs/nau8824.h" |
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struct cht_mc_private { |
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struct snd_soc_jack jack; |
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}; |
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static struct snd_soc_jack_pin cht_bsw_jack_pins[] = { |
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{ |
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.pin = "Headphone", |
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.mask = SND_JACK_HEADPHONE, |
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}, |
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{ |
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.pin = "Headset Mic", |
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.mask = SND_JACK_MICROPHONE, |
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}, |
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}; |
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static const struct snd_soc_dapm_widget cht_dapm_widgets[] = { |
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SND_SOC_DAPM_HP("Headphone", NULL), |
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SND_SOC_DAPM_MIC("Headset Mic", NULL), |
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SND_SOC_DAPM_MIC("Int Mic", NULL), |
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SND_SOC_DAPM_SPK("Ext Spk", NULL), |
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}; |
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static const struct snd_soc_dapm_route cht_audio_map[] = { |
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{"Ext Spk", NULL, "SPKOUTL"}, |
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{"Ext Spk", NULL, "SPKOUTR"}, |
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{"Headphone", NULL, "HPOL"}, |
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{"Headphone", NULL, "HPOR"}, |
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{"MIC1", NULL, "Int Mic"}, |
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{"MIC2", NULL, "Int Mic"}, |
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{"HSMIC1", NULL, "Headset Mic"}, |
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{"HSMIC2", NULL, "Headset Mic"}, |
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{"Playback", NULL, "ssp2 Tx"}, |
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{"ssp2 Tx", NULL, "codec_out0"}, |
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{"ssp2 Tx", NULL, "codec_out1"}, |
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{"codec_in0", NULL, "ssp2 Rx" }, |
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{"codec_in1", NULL, "ssp2 Rx" }, |
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{"ssp2 Rx", NULL, "Capture"}, |
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}; |
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static const struct snd_kcontrol_new cht_mc_controls[] = { |
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SOC_DAPM_PIN_SWITCH("Headphone"), |
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SOC_DAPM_PIN_SWITCH("Headset Mic"), |
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SOC_DAPM_PIN_SWITCH("Int Mic"), |
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SOC_DAPM_PIN_SWITCH("Ext Spk"), |
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}; |
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static int cht_aif1_hw_params(struct snd_pcm_substream *substream, |
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struct snd_pcm_hw_params *params) |
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{ |
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struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
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int ret; |
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ret = snd_soc_dai_set_sysclk(codec_dai, NAU8824_CLK_FLL_FS, 0, |
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SND_SOC_CLOCK_IN); |
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if (ret < 0) { |
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dev_err(codec_dai->dev, "can't set FS clock %d\n", ret); |
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return ret; |
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} |
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ret = snd_soc_dai_set_pll(codec_dai, 0, 0, params_rate(params), |
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params_rate(params) * 256); |
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if (ret < 0) { |
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dev_err(codec_dai->dev, "can't set FLL: %d\n", ret); |
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return ret; |
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} |
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return 0; |
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} |
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static int cht_codec_init(struct snd_soc_pcm_runtime *runtime) |
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{ |
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struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card); |
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struct snd_soc_jack *jack = &ctx->jack; |
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struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(runtime, 0); |
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struct snd_soc_component *component = codec_dai->component; |
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int ret, jack_type; |
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/* NAU88L24 supports 4 buttons headset detection |
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* KEY_PLAYPAUSE |
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* KEY_VOICECOMMAND |
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* KEY_VOLUMEUP |
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* KEY_VOLUMEDOWN |
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*/ |
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jack_type = SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 | |
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SND_JACK_BTN_2 | SND_JACK_BTN_3; |
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ret = snd_soc_card_jack_new_pins(runtime->card, "Headset", jack_type, |
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jack, cht_bsw_jack_pins, ARRAY_SIZE(cht_bsw_jack_pins)); |
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if (ret) { |
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dev_err(runtime->dev, |
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"Headset Jack creation failed %d\n", ret); |
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return ret; |
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} |
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snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); |
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snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); |
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snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP); |
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snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); |
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nau8824_enable_jack_detect(component, jack); |
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return ret; |
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} |
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static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd, |
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struct snd_pcm_hw_params *params) |
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{ |
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struct snd_interval *rate = hw_param_interval(params, |
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SNDRV_PCM_HW_PARAM_RATE); |
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struct snd_interval *channels = hw_param_interval(params, |
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SNDRV_PCM_HW_PARAM_CHANNELS); |
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struct snd_mask *fmt = |
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hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); |
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int ret; |
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/* The DSP will covert the FE rate to 48k, stereo, 24bits */ |
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rate->min = rate->max = 48000; |
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channels->min = channels->max = 2; |
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/* set SSP2 to 24-bit */ |
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snd_mask_none(fmt); |
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params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); |
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/* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */ |
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ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(rtd, 0), 0xf, 0x1, 4, 24); |
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if (ret < 0) { |
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dev_err(rtd->dev, "can't set codec TDM slot %d\n", ret); |
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return ret; |
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} |
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return 0; |
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} |
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static int cht_aif1_startup(struct snd_pcm_substream *substream) |
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{ |
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return snd_pcm_hw_constraint_single(substream->runtime, |
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SNDRV_PCM_HW_PARAM_RATE, 48000); |
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} |
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static const struct snd_soc_ops cht_aif1_ops = { |
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.startup = cht_aif1_startup, |
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}; |
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static const struct snd_soc_ops cht_be_ssp2_ops = { |
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.hw_params = cht_aif1_hw_params, |
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}; |
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SND_SOC_DAILINK_DEF(dummy, |
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DAILINK_COMP_ARRAY(COMP_DUMMY())); |
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SND_SOC_DAILINK_DEF(media, |
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DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai"))); |
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SND_SOC_DAILINK_DEF(deepbuffer, |
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DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai"))); |
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SND_SOC_DAILINK_DEF(ssp2_port, |
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DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port"))); |
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SND_SOC_DAILINK_DEF(ssp2_codec, |
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DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10508824:00", |
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NAU8824_CODEC_DAI))); |
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SND_SOC_DAILINK_DEF(platform, |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform"))); |
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static struct snd_soc_dai_link cht_dailink[] = { |
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/* Front End DAI links */ |
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[MERR_DPCM_AUDIO] = { |
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.name = "Audio Port", |
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.stream_name = "Audio", |
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.nonatomic = true, |
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.dynamic = 1, |
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.dpcm_playback = 1, |
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.dpcm_capture = 1, |
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.ops = &cht_aif1_ops, |
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SND_SOC_DAILINK_REG(media, dummy, platform), |
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}, |
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[MERR_DPCM_DEEP_BUFFER] = { |
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.name = "Deep-Buffer Audio Port", |
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.stream_name = "Deep-Buffer Audio", |
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.nonatomic = true, |
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.dynamic = 1, |
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.dpcm_playback = 1, |
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.ops = &cht_aif1_ops, |
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SND_SOC_DAILINK_REG(deepbuffer, dummy, platform), |
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}, |
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/* Back End DAI links */ |
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{ |
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/* SSP2 - Codec */ |
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.name = "SSP2-Codec", |
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.id = 0, |
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.no_pcm = 1, |
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.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF |
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| SND_SOC_DAIFMT_CBC_CFC, |
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.init = cht_codec_init, |
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.be_hw_params_fixup = cht_codec_fixup, |
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.dpcm_playback = 1, |
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.dpcm_capture = 1, |
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.ops = &cht_be_ssp2_ops, |
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SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform), |
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}, |
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}; |
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/* use space before codec name to simplify card ID, and simplify driver name */ |
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#define SOF_CARD_NAME "bytcht nau8824" /* card name will be 'sof-bytcht nau8824 */ |
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#define SOF_DRIVER_NAME "SOF" |
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#define CARD_NAME "chtnau8824" |
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#define DRIVER_NAME NULL /* card name will be used for driver name */ |
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/* SoC card */ |
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static struct snd_soc_card snd_soc_card_cht = { |
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.owner = THIS_MODULE, |
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.dai_link = cht_dailink, |
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.num_links = ARRAY_SIZE(cht_dailink), |
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.dapm_widgets = cht_dapm_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets), |
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.dapm_routes = cht_audio_map, |
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.num_dapm_routes = ARRAY_SIZE(cht_audio_map), |
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.controls = cht_mc_controls, |
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.num_controls = ARRAY_SIZE(cht_mc_controls), |
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}; |
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static int snd_cht_mc_probe(struct platform_device *pdev) |
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{ |
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struct cht_mc_private *drv; |
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struct snd_soc_acpi_mach *mach; |
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const char *platform_name; |
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bool sof_parent; |
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int ret_val; |
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drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL); |
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if (!drv) |
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return -ENOMEM; |
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snd_soc_card_set_drvdata(&snd_soc_card_cht, drv); |
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/* override platform name, if required */ |
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snd_soc_card_cht.dev = &pdev->dev; |
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mach = pdev->dev.platform_data; |
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platform_name = mach->mach_params.platform; |
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ret_val = snd_soc_fixup_dai_links_platform_name(&snd_soc_card_cht, |
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platform_name); |
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if (ret_val) |
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return ret_val; |
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sof_parent = snd_soc_acpi_sof_parent(&pdev->dev); |
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/* set card and driver name */ |
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if (sof_parent) { |
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snd_soc_card_cht.name = SOF_CARD_NAME; |
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snd_soc_card_cht.driver_name = SOF_DRIVER_NAME; |
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} else { |
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snd_soc_card_cht.name = CARD_NAME; |
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snd_soc_card_cht.driver_name = DRIVER_NAME; |
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} |
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snd_soc_card_cht.components = nau8824_components(); |
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/* set pm ops */ |
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if (sof_parent) |
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pdev->dev.driver->pm = &snd_soc_pm_ops; |
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/* register the soc card */ |
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ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht); |
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if (ret_val) { |
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dev_err(&pdev->dev, |
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"snd_soc_register_card failed %d\n", ret_val); |
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return ret_val; |
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} |
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platform_set_drvdata(pdev, &snd_soc_card_cht); |
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return ret_val; |
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} |
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static struct platform_driver snd_cht_mc_driver = { |
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.driver = { |
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.name = "cht-bsw-nau8824", |
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}, |
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.probe = snd_cht_mc_probe, |
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}; |
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module_platform_driver(snd_cht_mc_driver); |
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MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver"); |
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MODULE_AUTHOR("Wang, Joseph C <[email protected]>"); |
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MODULE_AUTHOR("John Hsu <[email protected]>"); |
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MODULE_LICENSE("GPL v2"); |
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MODULE_ALIAS("platform:cht-bsw-nau8824");
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