| // SPDX-License-Identifier: GPL-2.0-only |
| // |
| // Copyright (c) 2020, The Linux Foundation. All rights reserved. |
| // |
| // sc7180.c -- ALSA SoC Machine driver for SC7180 |
| |
| #include <dt-bindings/sound/sc7180-lpass.h> |
| #include <linux/gpio.h> |
| #include <linux/gpio/consumer.h> |
| #include <linux/module.h> |
| #include <linux/of_device.h> |
| #include <linux/platform_device.h> |
| #include <sound/core.h> |
| #include <sound/jack.h> |
| #include <sound/pcm.h> |
| #include <sound/soc.h> |
| #include <uapi/linux/input-event-codes.h> |
| |
| #include "../codecs/rt5682.h" |
| #include "../codecs/rt5682s.h" |
| #include "common.h" |
| #include "lpass.h" |
| |
| #define DEFAULT_MCLK_RATE 19200000 |
| #define RT5682_PLL1_FREQ (48000 * 512) |
| |
| #define DRIVER_NAME "SC7180" |
| |
| struct sc7180_snd_data { |
| struct snd_soc_card card; |
| u32 pri_mi2s_clk_count; |
| struct snd_soc_jack hs_jack; |
| struct snd_soc_jack hdmi_jack; |
| struct gpio_desc *dmic_sel; |
| int dmic_switch; |
| }; |
| |
| static void sc7180_jack_free(struct snd_jack *jack) |
| { |
| struct snd_soc_component *component = jack->private_data; |
| |
| snd_soc_component_set_jack(component, NULL, NULL); |
| } |
| |
| static struct snd_soc_jack_pin sc7180_jack_pins[] = { |
| { |
| .pin = "Headphone Jack", |
| .mask = SND_JACK_HEADPHONE, |
| }, |
| { |
| .pin = "Headset Mic", |
| .mask = SND_JACK_MICROPHONE, |
| }, |
| }; |
| |
| static int sc7180_headset_init(struct snd_soc_pcm_runtime *rtd) |
| { |
| struct snd_soc_card *card = rtd->card; |
| struct sc7180_snd_data *pdata = snd_soc_card_get_drvdata(card); |
| struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
| struct snd_soc_component *component = codec_dai->component; |
| struct snd_jack *jack; |
| int rval; |
| |
| rval = snd_soc_card_jack_new_pins(card, "Headset Jack", |
| SND_JACK_HEADSET | |
| SND_JACK_HEADPHONE | |
| SND_JACK_BTN_0 | SND_JACK_BTN_1 | |
| SND_JACK_BTN_2 | SND_JACK_BTN_3, |
| &pdata->hs_jack, |
| sc7180_jack_pins, |
| ARRAY_SIZE(sc7180_jack_pins)); |
| |
| if (rval < 0) { |
| dev_err(card->dev, "Unable to add Headset Jack\n"); |
| return rval; |
| } |
| |
| jack = pdata->hs_jack.jack; |
| |
| snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); |
| snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND); |
| snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP); |
| snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN); |
| |
| jack->private_data = component; |
| jack->private_free = sc7180_jack_free; |
| |
| return snd_soc_component_set_jack(component, &pdata->hs_jack, NULL); |
| } |
| |
| static int sc7180_hdmi_init(struct snd_soc_pcm_runtime *rtd) |
| { |
| struct snd_soc_card *card = rtd->card; |
| struct sc7180_snd_data *pdata = snd_soc_card_get_drvdata(card); |
| struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
| struct snd_soc_component *component = codec_dai->component; |
| struct snd_jack *jack; |
| int rval; |
| |
| rval = snd_soc_card_jack_new( |
| card, "HDMI Jack", |
| SND_JACK_LINEOUT, |
| &pdata->hdmi_jack); |
| |
| if (rval < 0) { |
| dev_err(card->dev, "Unable to add HDMI Jack\n"); |
| return rval; |
| } |
| |
| jack = pdata->hdmi_jack.jack; |
| jack->private_data = component; |
| jack->private_free = sc7180_jack_free; |
| |
| return snd_soc_component_set_jack(component, &pdata->hdmi_jack, NULL); |
| } |
| |
| static int sc7180_init(struct snd_soc_pcm_runtime *rtd) |
| { |
| struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
| |
| switch (cpu_dai->id) { |
| case MI2S_PRIMARY: |
| return sc7180_headset_init(rtd); |
| case MI2S_SECONDARY: |
| return 0; |
| case LPASS_DP_RX: |
| return sc7180_hdmi_init(rtd); |
| default: |
| dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, |
| cpu_dai->id); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| static int sc7180_snd_startup(struct snd_pcm_substream *substream) |
| { |
| struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| struct snd_soc_card *card = rtd->card; |
| struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card); |
| struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
| struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
| int pll_id, pll_source, pll_in, pll_out, clk_id, ret; |
| |
| if (!strcmp(codec_dai->name, "rt5682-aif1")) { |
| pll_source = RT5682_PLL1_S_MCLK; |
| pll_id = 0; |
| clk_id = RT5682_SCLK_S_PLL1; |
| pll_out = RT5682_PLL1_FREQ; |
| pll_in = DEFAULT_MCLK_RATE; |
| } else if (!strcmp(codec_dai->name, "rt5682s-aif1")) { |
| pll_source = RT5682S_PLL_S_MCLK; |
| pll_id = RT5682S_PLL2; |
| clk_id = RT5682S_SCLK_S_PLL2; |
| pll_out = RT5682_PLL1_FREQ; |
| pll_in = DEFAULT_MCLK_RATE; |
| } |
| |
| switch (cpu_dai->id) { |
| case MI2S_PRIMARY: |
| if (++data->pri_mi2s_clk_count == 1) { |
| snd_soc_dai_set_sysclk(cpu_dai, |
| LPASS_MCLK0, |
| DEFAULT_MCLK_RATE, |
| SNDRV_PCM_STREAM_PLAYBACK); |
| } |
| |
| snd_soc_dai_set_fmt(codec_dai, |
| SND_SOC_DAIFMT_BC_FC | |
| SND_SOC_DAIFMT_NB_NF | |
| SND_SOC_DAIFMT_I2S); |
| |
| /* Configure PLL1 for codec */ |
| ret = snd_soc_dai_set_pll(codec_dai, pll_id, pll_source, |
| pll_in, pll_out); |
| if (ret) { |
| dev_err(rtd->dev, "can't set codec pll: %d\n", ret); |
| return ret; |
| } |
| |
| /* Configure sysclk for codec */ |
| ret = snd_soc_dai_set_sysclk(codec_dai, clk_id, pll_out, |
| SND_SOC_CLOCK_IN); |
| if (ret) |
| dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", |
| ret); |
| |
| break; |
| case MI2S_SECONDARY: |
| break; |
| case LPASS_DP_RX: |
| break; |
| default: |
| dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, |
| cpu_dai->id); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| static int dmic_get(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
| struct sc7180_snd_data *data = snd_soc_card_get_drvdata(dapm->card); |
| |
| ucontrol->value.integer.value[0] = data->dmic_switch; |
| return 0; |
| } |
| |
| static int dmic_set(struct snd_kcontrol *kcontrol, |
| struct snd_ctl_elem_value *ucontrol) |
| { |
| struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kcontrol); |
| struct sc7180_snd_data *data = snd_soc_card_get_drvdata(dapm->card); |
| |
| data->dmic_switch = ucontrol->value.integer.value[0]; |
| gpiod_set_value(data->dmic_sel, data->dmic_switch); |
| return 0; |
| } |
| |
| static void sc7180_snd_shutdown(struct snd_pcm_substream *substream) |
| { |
| struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| struct snd_soc_card *card = rtd->card; |
| struct sc7180_snd_data *data = snd_soc_card_get_drvdata(card); |
| struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
| |
| switch (cpu_dai->id) { |
| case MI2S_PRIMARY: |
| if (--data->pri_mi2s_clk_count == 0) { |
| snd_soc_dai_set_sysclk(cpu_dai, |
| LPASS_MCLK0, |
| 0, |
| SNDRV_PCM_STREAM_PLAYBACK); |
| } |
| break; |
| case MI2S_SECONDARY: |
| break; |
| case LPASS_DP_RX: |
| break; |
| default: |
| dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, |
| cpu_dai->id); |
| break; |
| } |
| } |
| |
| static int sc7180_adau7002_init(struct snd_soc_pcm_runtime *rtd) |
| { |
| struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
| |
| switch (cpu_dai->id) { |
| case MI2S_PRIMARY: |
| return 0; |
| case MI2S_SECONDARY: |
| return 0; |
| case LPASS_DP_RX: |
| return sc7180_hdmi_init(rtd); |
| default: |
| dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, |
| cpu_dai->id); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| static int sc7180_adau7002_snd_startup(struct snd_pcm_substream *substream) |
| { |
| struct snd_soc_pcm_runtime *rtd = substream->private_data; |
| struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); |
| struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); |
| struct snd_pcm_runtime *runtime = substream->runtime; |
| |
| switch (cpu_dai->id) { |
| case MI2S_PRIMARY: |
| snd_soc_dai_set_fmt(codec_dai, |
| SND_SOC_DAIFMT_CBS_CFS | |
| SND_SOC_DAIFMT_NB_NF | |
| SND_SOC_DAIFMT_I2S); |
| runtime->hw.formats = SNDRV_PCM_FMTBIT_S32_LE; |
| snd_pcm_hw_constraint_msbits(runtime, 0, 32, 32); |
| |
| break; |
| case MI2S_SECONDARY: |
| break; |
| case LPASS_DP_RX: |
| break; |
| default: |
| dev_err(rtd->dev, "%s: invalid dai id 0x%x\n", __func__, |
| cpu_dai->id); |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| static const struct snd_soc_ops sc7180_ops = { |
| .startup = sc7180_snd_startup, |
| .shutdown = sc7180_snd_shutdown, |
| }; |
| |
| static const struct snd_soc_ops sc7180_adau7002_ops = { |
| .startup = sc7180_adau7002_snd_startup, |
| }; |
| |
| static const struct snd_soc_dapm_widget sc7180_snd_widgets[] = { |
| SND_SOC_DAPM_HP("Headphone Jack", NULL), |
| SND_SOC_DAPM_MIC("Headset Mic", NULL), |
| }; |
| |
| static const struct snd_kcontrol_new sc7180_snd_controls[] = { |
| SOC_DAPM_PIN_SWITCH("Headphone Jack"), |
| SOC_DAPM_PIN_SWITCH("Headset Mic"), |
| }; |
| |
| static const struct snd_soc_dapm_widget sc7180_adau7002_snd_widgets[] = { |
| SND_SOC_DAPM_MIC("DMIC", NULL), |
| }; |
| |
| static const char * const dmic_mux_text[] = { |
| "Front Mic", |
| "Rear Mic", |
| }; |
| |
| static SOC_ENUM_SINGLE_DECL(sc7180_dmic_enum, |
| SND_SOC_NOPM, 0, dmic_mux_text); |
| |
| static const struct snd_kcontrol_new sc7180_dmic_mux_control = |
| SOC_DAPM_ENUM_EXT("DMIC Select Mux", sc7180_dmic_enum, |
| dmic_get, dmic_set); |
| |
| static const struct snd_soc_dapm_widget sc7180_snd_dual_mic_widgets[] = { |
| SND_SOC_DAPM_HP("Headphone Jack", NULL), |
| SND_SOC_DAPM_MIC("Headset Mic", NULL), |
| SND_SOC_DAPM_MIC("DMIC", NULL), |
| SND_SOC_DAPM_MUX("Dmic Mux", SND_SOC_NOPM, 0, 0, &sc7180_dmic_mux_control), |
| }; |
| |
| static const struct snd_kcontrol_new sc7180_snd_dual_mic_controls[] = { |
| SOC_DAPM_PIN_SWITCH("Headphone Jack"), |
| SOC_DAPM_PIN_SWITCH("Headset Mic"), |
| }; |
| |
| static const struct snd_soc_dapm_route sc7180_snd_dual_mic_audio_route[] = { |
| {"Dmic Mux", "Front Mic", "DMIC"}, |
| {"Dmic Mux", "Rear Mic", "DMIC"}, |
| }; |
| |
| static int sc7180_snd_platform_probe(struct platform_device *pdev) |
| { |
| struct snd_soc_card *card; |
| struct sc7180_snd_data *data; |
| struct device *dev = &pdev->dev; |
| struct snd_soc_dai_link *link; |
| int ret; |
| int i; |
| bool no_headphone = false; |
| |
| /* Allocate the private data */ |
| data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); |
| if (!data) |
| return -ENOMEM; |
| |
| card = &data->card; |
| snd_soc_card_set_drvdata(card, data); |
| |
| card->owner = THIS_MODULE; |
| card->driver_name = DRIVER_NAME; |
| card->dev = dev; |
| card->dapm_widgets = sc7180_snd_widgets; |
| card->num_dapm_widgets = ARRAY_SIZE(sc7180_snd_widgets); |
| card->controls = sc7180_snd_controls; |
| card->num_controls = ARRAY_SIZE(sc7180_snd_controls); |
| |
| if (of_property_read_bool(dev->of_node, "dmic-gpios")) { |
| card->dapm_widgets = sc7180_snd_dual_mic_widgets, |
| card->num_dapm_widgets = ARRAY_SIZE(sc7180_snd_dual_mic_widgets), |
| card->controls = sc7180_snd_dual_mic_controls, |
| card->num_controls = ARRAY_SIZE(sc7180_snd_dual_mic_controls), |
| card->dapm_routes = sc7180_snd_dual_mic_audio_route, |
| card->num_dapm_routes = ARRAY_SIZE(sc7180_snd_dual_mic_audio_route), |
| data->dmic_sel = devm_gpiod_get(&pdev->dev, "dmic", GPIOD_OUT_LOW); |
| if (IS_ERR(data->dmic_sel)) { |
| dev_err(&pdev->dev, "DMIC gpio failed err=%ld\n", PTR_ERR(data->dmic_sel)); |
| return PTR_ERR(data->dmic_sel); |
| } |
| } |
| |
| if (of_device_is_compatible(dev->of_node, "google,sc7180-coachz")) { |
| no_headphone = true; |
| card->dapm_widgets = sc7180_adau7002_snd_widgets; |
| card->num_dapm_widgets = ARRAY_SIZE(sc7180_adau7002_snd_widgets); |
| } |
| |
| ret = qcom_snd_parse_of(card); |
| if (ret) |
| return ret; |
| |
| for_each_card_prelinks(card, i, link) { |
| if (no_headphone) { |
| link->ops = &sc7180_adau7002_ops; |
| link->init = sc7180_adau7002_init; |
| } else { |
| link->ops = &sc7180_ops; |
| link->init = sc7180_init; |
| } |
| } |
| |
| return devm_snd_soc_register_card(dev, card); |
| } |
| |
| static const struct of_device_id sc7180_snd_device_id[] = { |
| {.compatible = "google,sc7180-trogdor"}, |
| {.compatible = "google,sc7180-coachz"}, |
| {}, |
| }; |
| MODULE_DEVICE_TABLE(of, sc7180_snd_device_id); |
| |
| static struct platform_driver sc7180_snd_driver = { |
| .probe = sc7180_snd_platform_probe, |
| .driver = { |
| .name = "msm-snd-sc7180", |
| .of_match_table = sc7180_snd_device_id, |
| .pm = &snd_soc_pm_ops, |
| }, |
| }; |
| module_platform_driver(sc7180_snd_driver); |
| |
| MODULE_DESCRIPTION("sc7180 ASoC Machine Driver"); |
| MODULE_LICENSE("GPL v2"); |