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295 lines
8.1 KiB
295 lines
8.1 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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// |
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// ASoC DPCM Machine driver for Baytrail / Cherrytrail platforms with |
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// CX2072X codec |
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// |
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#include <linux/acpi.h> |
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#include <linux/device.h> |
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#include <linux/gpio/consumer.h> |
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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/jack.h> |
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#include <sound/soc.h> |
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#include <sound/soc-acpi.h> |
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#include "../../codecs/cx2072x.h" |
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#include "../atom/sst-atom-controls.h" |
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static const struct snd_soc_dapm_widget byt_cht_cx2072x_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 byt_cht_cx2072x_audio_map[] = { |
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/* External Speakers: HFL, HFR */ |
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{"Headphone", NULL, "PORTA"}, |
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{"Ext Spk", NULL, "PORTG"}, |
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{"PORTC", NULL, "Int Mic"}, |
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{"PORTD", 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 byt_cht_cx2072x_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 struct snd_soc_jack byt_cht_cx2072x_headset; |
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/* Headset jack detection DAPM pins */ |
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static struct snd_soc_jack_pin byt_cht_cx2072x_headset_pins[] = { |
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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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.pin = "Headphone", |
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.mask = SND_JACK_HEADPHONE, |
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}, |
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}; |
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static const struct acpi_gpio_params byt_cht_cx2072x_headset_gpios; |
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static const struct acpi_gpio_mapping byt_cht_cx2072x_acpi_gpios[] = { |
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{ "headset-gpios", &byt_cht_cx2072x_headset_gpios, 1 }, |
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{}, |
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}; |
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static int byt_cht_cx2072x_init(struct snd_soc_pcm_runtime *rtd) |
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{ |
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struct snd_soc_card *card = rtd->card; |
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struct snd_soc_component *codec = asoc_rtd_to_codec(rtd, 0)->component; |
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int ret; |
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if (devm_acpi_dev_add_driver_gpios(codec->dev, |
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byt_cht_cx2072x_acpi_gpios)) |
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dev_warn(rtd->dev, "Unable to add GPIO mapping table\n"); |
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card->dapm.idle_bias_off = true; |
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/* set the default PLL rate, the clock is handled by the codec driver */ |
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ret = snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), CX2072X_MCLK_EXTERNAL_PLL, |
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19200000, SND_SOC_CLOCK_IN); |
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if (ret) { |
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dev_err(rtd->dev, "Could not set sysclk\n"); |
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return ret; |
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} |
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ret = snd_soc_card_jack_new(card, "Headset", |
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SND_JACK_HEADSET | SND_JACK_BTN_0, |
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&byt_cht_cx2072x_headset, |
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byt_cht_cx2072x_headset_pins, |
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ARRAY_SIZE(byt_cht_cx2072x_headset_pins)); |
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if (ret) |
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return ret; |
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snd_soc_component_set_jack(codec, &byt_cht_cx2072x_headset, NULL); |
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snd_soc_dai_set_bclk_ratio(asoc_rtd_to_codec(rtd, 0), 50); |
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return 0; |
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} |
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static int byt_cht_cx2072x_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 = |
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hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); |
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struct snd_interval *channels = |
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hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); |
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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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params_set_format(params, SNDRV_PCM_FORMAT_S24_LE); |
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/* |
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* Default mode for SSP configuration is TDM 4 slot, override config |
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* with explicit setting to I2S 2ch 24-bit. The word length is set with |
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* dai_set_tdm_slot() since there is no other API exposed |
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*/ |
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ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0), |
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SND_SOC_DAIFMT_I2S | |
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SND_SOC_DAIFMT_NB_NF | |
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SND_SOC_DAIFMT_CBS_CFS); |
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if (ret < 0) { |
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dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret); |
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return ret; |
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} |
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ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2, 24); |
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if (ret < 0) { |
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dev_err(rtd->dev, "can't set I2S config, err %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 byt_cht_cx2072x_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 struct snd_soc_ops byt_cht_cx2072x_aif1_ops = { |
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.startup = byt_cht_cx2072x_aif1_startup, |
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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, |
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DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port"))); |
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SND_SOC_DAILINK_DEF(cx2072x, |
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DAILINK_COMP_ARRAY(COMP_CODEC("i2c-14F10720:00", "cx2072x-hifi"))); |
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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 byt_cht_cx2072x_dais[] = { |
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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 = &byt_cht_cx2072x_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 = &byt_cht_cx2072x_aif1_ops, |
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SND_SOC_DAILINK_REG(deepbuffer, dummy, platform), |
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}, |
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/* back ends */ |
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{ |
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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_I2S | SND_SOC_DAIFMT_NB_NF |
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| SND_SOC_DAIFMT_CBS_CFS, |
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.init = byt_cht_cx2072x_init, |
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.be_hw_params_fixup = byt_cht_cx2072x_fixup, |
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.nonatomic = true, |
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.dpcm_playback = 1, |
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.dpcm_capture = 1, |
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SND_SOC_DAILINK_REG(ssp2, cx2072x, 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 cx2072x" /* card name will be 'sof-bytcht cx2072x' */ |
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#define SOF_DRIVER_NAME "SOF" |
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#define CARD_NAME "bytcht-cx2072x" |
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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 byt_cht_cx2072x_card = { |
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.name = CARD_NAME, |
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.driver_name = DRIVER_NAME, |
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.owner = THIS_MODULE, |
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.dai_link = byt_cht_cx2072x_dais, |
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.num_links = ARRAY_SIZE(byt_cht_cx2072x_dais), |
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.dapm_widgets = byt_cht_cx2072x_widgets, |
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.num_dapm_widgets = ARRAY_SIZE(byt_cht_cx2072x_widgets), |
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.dapm_routes = byt_cht_cx2072x_audio_map, |
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.num_dapm_routes = ARRAY_SIZE(byt_cht_cx2072x_audio_map), |
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.controls = byt_cht_cx2072x_controls, |
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.num_controls = ARRAY_SIZE(byt_cht_cx2072x_controls), |
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}; |
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static char codec_name[SND_ACPI_I2C_ID_LEN]; |
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static int snd_byt_cht_cx2072x_probe(struct platform_device *pdev) |
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{ |
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struct snd_soc_acpi_mach *mach; |
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struct acpi_device *adev; |
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int dai_index = 0; |
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bool sof_parent; |
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int i, ret; |
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byt_cht_cx2072x_card.dev = &pdev->dev; |
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mach = dev_get_platdata(&pdev->dev); |
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/* fix index of codec dai */ |
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for (i = 0; i < ARRAY_SIZE(byt_cht_cx2072x_dais); i++) { |
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if (!strcmp(byt_cht_cx2072x_dais[i].codecs->name, |
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"i2c-14F10720:00")) { |
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dai_index = i; |
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break; |
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} |
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} |
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/* fixup codec name based on HID */ |
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adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1); |
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if (adev) { |
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snprintf(codec_name, sizeof(codec_name), "i2c-%s", |
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acpi_dev_name(adev)); |
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put_device(&adev->dev); |
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byt_cht_cx2072x_dais[dai_index].codecs->name = codec_name; |
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} |
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/* override plaform name, if required */ |
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ret = snd_soc_fixup_dai_links_platform_name(&byt_cht_cx2072x_card, |
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mach->mach_params.platform); |
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if (ret) |
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return ret; |
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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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byt_cht_cx2072x_card.name = SOF_CARD_NAME; |
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byt_cht_cx2072x_card.driver_name = SOF_DRIVER_NAME; |
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} else { |
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byt_cht_cx2072x_card.name = CARD_NAME; |
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byt_cht_cx2072x_card.driver_name = DRIVER_NAME; |
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} |
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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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return devm_snd_soc_register_card(&pdev->dev, &byt_cht_cx2072x_card); |
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} |
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static struct platform_driver snd_byt_cht_cx2072x_driver = { |
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.driver = { |
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.name = "bytcht_cx2072x", |
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}, |
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.probe = snd_byt_cht_cx2072x_probe, |
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}; |
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module_platform_driver(snd_byt_cht_cx2072x_driver); |
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MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail Machine driver"); |
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MODULE_LICENSE("GPL v2"); |
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MODULE_ALIAS("platform:bytcht_cx2072x");
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