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-rw-r--r--sound/soc/intel/boards/bdw-rt5677.c465
1 files changed, 465 insertions, 0 deletions
diff --git a/sound/soc/intel/boards/bdw-rt5677.c b/sound/soc/intel/boards/bdw-rt5677.c
new file mode 100644
index 000000000..f3e08d258
--- /dev/null
+++ b/sound/soc/intel/boards/bdw-rt5677.c
@@ -0,0 +1,465 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * ASoC machine driver for Intel Broadwell platforms with RT5677 codec
+ *
+ * Copyright (c) 2014, The Chromium OS Authors. All rights reserved.
+ */
+
+#include <linux/acpi.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/gpio/consumer.h>
+#include <linux/delay.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+#include <sound/jack.h>
+#include <sound/soc-acpi.h>
+
+#include "../../codecs/rt5677.h"
+
+struct bdw_rt5677_priv {
+ struct gpio_desc *gpio_hp_en;
+ struct snd_soc_component *component;
+};
+
+static int bdw_rt5677_event_hp(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *k, int event)
+{
+ struct snd_soc_dapm_context *dapm = w->dapm;
+ struct snd_soc_card *card = dapm->card;
+ struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card);
+
+ if (SND_SOC_DAPM_EVENT_ON(event))
+ msleep(70);
+
+ gpiod_set_value_cansleep(bdw_rt5677->gpio_hp_en,
+ SND_SOC_DAPM_EVENT_ON(event));
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget bdw_rt5677_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone", bdw_rt5677_event_hp),
+ SND_SOC_DAPM_SPK("Speaker", NULL),
+ SND_SOC_DAPM_MIC("Headset Mic", NULL),
+ SND_SOC_DAPM_MIC("Local DMICs", NULL),
+ SND_SOC_DAPM_MIC("Remote DMICs", NULL),
+};
+
+static const struct snd_soc_dapm_route bdw_rt5677_map[] = {
+ /* Speakers */
+ {"Speaker", NULL, "PDM1L"},
+ {"Speaker", NULL, "PDM1R"},
+
+ /* Headset jack connectors */
+ {"Headphone", NULL, "LOUT1"},
+ {"Headphone", NULL, "LOUT2"},
+ {"IN1P", NULL, "Headset Mic"},
+ {"IN1N", NULL, "Headset Mic"},
+
+ /* Digital MICs
+ * Local DMICs: the two DMICs on the mainboard
+ * Remote DMICs: the two DMICs on the camera module
+ */
+ {"DMIC L1", NULL, "Remote DMICs"},
+ {"DMIC R1", NULL, "Remote DMICs"},
+ {"DMIC L2", NULL, "Local DMICs"},
+ {"DMIC R2", NULL, "Local DMICs"},
+
+ /* CODEC BE connections */
+ {"SSP0 CODEC IN", NULL, "AIF1 Capture"},
+ {"AIF1 Playback", NULL, "SSP0 CODEC OUT"},
+ {"DSP Capture", NULL, "DSP Buffer"},
+
+ /* DSP Clock Connections */
+ { "DSP Buffer", NULL, "SSP0 CODEC IN" },
+ { "SSP0 CODEC IN", NULL, "DSPTX" },
+};
+
+static const struct snd_kcontrol_new bdw_rt5677_controls[] = {
+ SOC_DAPM_PIN_SWITCH("Speaker"),
+ SOC_DAPM_PIN_SWITCH("Headphone"),
+ SOC_DAPM_PIN_SWITCH("Headset Mic"),
+ SOC_DAPM_PIN_SWITCH("Local DMICs"),
+ SOC_DAPM_PIN_SWITCH("Remote DMICs"),
+};
+
+
+static struct snd_soc_jack headphone_jack;
+static struct snd_soc_jack mic_jack;
+
+static struct snd_soc_jack_pin headphone_jack_pin = {
+ .pin = "Headphone",
+ .mask = SND_JACK_HEADPHONE,
+};
+
+static struct snd_soc_jack_pin mic_jack_pin = {
+ .pin = "Headset Mic",
+ .mask = SND_JACK_MICROPHONE,
+};
+
+static struct snd_soc_jack_gpio headphone_jack_gpio = {
+ .name = "plug-det",
+ .report = SND_JACK_HEADPHONE,
+ .debounce_time = 200,
+};
+
+static struct snd_soc_jack_gpio mic_jack_gpio = {
+ .name = "mic-present",
+ .report = SND_JACK_MICROPHONE,
+ .debounce_time = 200,
+ .invert = 1,
+};
+
+/* GPIO indexes defined by ACPI */
+enum {
+ RT5677_GPIO_PLUG_DET = 0,
+ RT5677_GPIO_MIC_PRESENT_L = 1,
+ RT5677_GPIO_HOTWORD_DET_L = 2,
+ RT5677_GPIO_DSP_INT = 3,
+ RT5677_GPIO_HP_AMP_SHDN_L = 4,
+};
+
+static const struct acpi_gpio_params plug_det_gpio = { RT5677_GPIO_PLUG_DET, 0, false };
+static const struct acpi_gpio_params mic_present_gpio = { RT5677_GPIO_MIC_PRESENT_L, 0, false };
+static const struct acpi_gpio_params headphone_enable_gpio = { RT5677_GPIO_HP_AMP_SHDN_L, 0, false };
+
+static const struct acpi_gpio_mapping bdw_rt5677_gpios[] = {
+ { "plug-det-gpios", &plug_det_gpio, 1 },
+ { "mic-present-gpios", &mic_present_gpio, 1 },
+ { "headphone-enable-gpios", &headphone_enable_gpio, 1 },
+ { NULL },
+};
+
+static int broadwell_ssp0_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 *chan = hw_param_interval(params,
+ SNDRV_PCM_HW_PARAM_CHANNELS);
+
+ /* The ADSP will convert the FE rate to 48k, stereo */
+ rate->min = rate->max = 48000;
+ chan->min = chan->max = 2;
+
+ /* set SSP0 to 16 bit */
+ params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
+ return 0;
+}
+
+static int bdw_rt5677_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+ struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+ int ret;
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_MCLK, 24576000,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ dev_err(rtd->dev, "can't set codec sysclk configuration\n");
+ return ret;
+ }
+
+ return ret;
+}
+
+static int bdw_rt5677_dsp_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+ struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+ int ret;
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, RT5677_SCLK_S_PLL1, 24576000,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ dev_err(rtd->dev, "can't set codec sysclk configuration\n");
+ return ret;
+ }
+ ret = snd_soc_dai_set_pll(codec_dai, 0, RT5677_PLL1_S_MCLK,
+ 24000000, 24576000);
+ if (ret < 0) {
+ dev_err(rtd->dev, "can't set codec pll configuration\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static const struct snd_soc_ops bdw_rt5677_ops = {
+ .hw_params = bdw_rt5677_hw_params,
+};
+
+static const struct snd_soc_ops bdw_rt5677_dsp_ops = {
+ .hw_params = bdw_rt5677_dsp_hw_params,
+};
+
+static const unsigned int channels[] = {
+ 2,
+};
+
+static const struct snd_pcm_hw_constraint_list constraints_channels = {
+ .count = ARRAY_SIZE(channels),
+ .list = channels,
+ .mask = 0,
+};
+
+static int bdw_rt5677_fe_startup(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ /* Board supports stereo configuration only */
+ runtime->hw.channels_max = 2;
+ return snd_pcm_hw_constraint_list(runtime, 0,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ &constraints_channels);
+}
+
+static const struct snd_soc_ops bdw_rt5677_fe_ops = {
+ .startup = bdw_rt5677_fe_startup,
+};
+
+static int bdw_rt5677_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct bdw_rt5677_priv *bdw_rt5677 =
+ snd_soc_card_get_drvdata(rtd->card);
+ struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+ struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+ int ret;
+
+ ret = devm_acpi_dev_add_driver_gpios(component->dev, bdw_rt5677_gpios);
+ if (ret)
+ dev_warn(component->dev, "Failed to add driver gpios\n");
+
+ /* Enable codec ASRC function for Stereo DAC/Stereo1 ADC/DMIC/I2S1.
+ * The ASRC clock source is clk_i2s1_asrc.
+ */
+ rt5677_sel_asrc_clk_src(component, RT5677_DA_STEREO_FILTER |
+ RT5677_AD_STEREO1_FILTER | RT5677_I2S1_SOURCE,
+ RT5677_CLK_SEL_I2S1_ASRC);
+ /* Enable codec ASRC function for Mono ADC L.
+ * The ASRC clock source is clk_sys2_asrc.
+ */
+ rt5677_sel_asrc_clk_src(component, RT5677_AD_MONO_L_FILTER,
+ RT5677_CLK_SEL_SYS2);
+
+ /* Request rt5677 GPIO for headphone amp control */
+ bdw_rt5677->gpio_hp_en = gpiod_get(component->dev, "headphone-enable",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(bdw_rt5677->gpio_hp_en)) {
+ dev_err(component->dev, "Can't find HP_AMP_SHDN_L gpio\n");
+ return PTR_ERR(bdw_rt5677->gpio_hp_en);
+ }
+
+ /* Create and initialize headphone jack */
+ if (!snd_soc_card_jack_new_pins(rtd->card, "Headphone Jack",
+ SND_JACK_HEADPHONE, &headphone_jack,
+ &headphone_jack_pin, 1)) {
+ headphone_jack_gpio.gpiod_dev = component->dev;
+ if (snd_soc_jack_add_gpios(&headphone_jack, 1,
+ &headphone_jack_gpio))
+ dev_err(component->dev, "Can't add headphone jack gpio\n");
+ } else {
+ dev_err(component->dev, "Can't create headphone jack\n");
+ }
+
+ /* Create and initialize mic jack */
+ if (!snd_soc_card_jack_new_pins(rtd->card, "Mic Jack",
+ SND_JACK_MICROPHONE, &mic_jack,
+ &mic_jack_pin, 1)) {
+ mic_jack_gpio.gpiod_dev = component->dev;
+ if (snd_soc_jack_add_gpios(&mic_jack, 1, &mic_jack_gpio))
+ dev_err(component->dev, "Can't add mic jack gpio\n");
+ } else {
+ dev_err(component->dev, "Can't create mic jack\n");
+ }
+ bdw_rt5677->component = component;
+
+ snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
+ return 0;
+}
+
+static void bdw_rt5677_exit(struct snd_soc_pcm_runtime *rtd)
+{
+ struct bdw_rt5677_priv *bdw_rt5677 =
+ snd_soc_card_get_drvdata(rtd->card);
+
+ /*
+ * The .exit() can be reached without going through the .init()
+ * so explicitly test if the gpiod is valid
+ */
+ if (!IS_ERR_OR_NULL(bdw_rt5677->gpio_hp_en))
+ gpiod_put(bdw_rt5677->gpio_hp_en);
+}
+
+/* broadwell digital audio interface glue - connects codec <--> CPU */
+SND_SOC_DAILINK_DEF(dummy,
+ DAILINK_COMP_ARRAY(COMP_DUMMY()));
+
+SND_SOC_DAILINK_DEF(fe,
+ DAILINK_COMP_ARRAY(COMP_CPU("System Pin")));
+
+SND_SOC_DAILINK_DEF(platform,
+ DAILINK_COMP_ARRAY(COMP_PLATFORM("haswell-pcm-audio")));
+
+SND_SOC_DAILINK_DEF(be,
+ DAILINK_COMP_ARRAY(COMP_CODEC("i2c-RT5677CE:00", "rt5677-aif1")));
+
+SND_SOC_DAILINK_DEF(ssp0_port,
+ DAILINK_COMP_ARRAY(COMP_CPU("ssp0-port")));
+
+/* Wake on voice interface */
+SND_SOC_DAILINK_DEFS(dsp,
+ DAILINK_COMP_ARRAY(COMP_CPU("spi-RT5677AA:00")),
+ DAILINK_COMP_ARRAY(COMP_CODEC("i2c-RT5677CE:00", "rt5677-dspbuffer")),
+ DAILINK_COMP_ARRAY(COMP_PLATFORM("spi-RT5677AA:00")));
+
+static struct snd_soc_dai_link bdw_rt5677_dais[] = {
+ /* Front End DAI links */
+ {
+ .name = "System PCM",
+ .stream_name = "System Playback/Capture",
+ .nonatomic = 1,
+ .dynamic = 1,
+ .trigger = {
+ SND_SOC_DPCM_TRIGGER_POST,
+ SND_SOC_DPCM_TRIGGER_POST
+ },
+ .dpcm_capture = 1,
+ .dpcm_playback = 1,
+ .ops = &bdw_rt5677_fe_ops,
+ SND_SOC_DAILINK_REG(fe, dummy, platform),
+ },
+
+ /* Non-DPCM links */
+ {
+ .name = "Codec DSP",
+ .stream_name = "Wake on Voice",
+ .capture_only = 1,
+ .ops = &bdw_rt5677_dsp_ops,
+ SND_SOC_DAILINK_REG(dsp),
+ },
+
+ /* Back End DAI links */
+ {
+ /* SSP0 - Codec */
+ .name = "Codec",
+ .id = 0,
+ .nonatomic = 1,
+ .no_pcm = 1,
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBC_CFC,
+ .ignore_pmdown_time = 1,
+ .be_hw_params_fixup = broadwell_ssp0_fixup,
+ .ops = &bdw_rt5677_ops,
+ .dpcm_playback = 1,
+ .dpcm_capture = 1,
+ .init = bdw_rt5677_init,
+ .exit = bdw_rt5677_exit,
+ SND_SOC_DAILINK_REG(ssp0_port, be, platform),
+ },
+};
+
+static int bdw_rt5677_suspend_pre(struct snd_soc_card *card)
+{
+ struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card);
+ struct snd_soc_dapm_context *dapm;
+
+ if (bdw_rt5677->component) {
+ dapm = snd_soc_component_get_dapm(bdw_rt5677->component);
+ snd_soc_dapm_disable_pin(dapm, "MICBIAS1");
+ }
+ return 0;
+}
+
+static int bdw_rt5677_resume_post(struct snd_soc_card *card)
+{
+ struct bdw_rt5677_priv *bdw_rt5677 = snd_soc_card_get_drvdata(card);
+ struct snd_soc_dapm_context *dapm;
+
+ if (bdw_rt5677->component) {
+ dapm = snd_soc_component_get_dapm(bdw_rt5677->component);
+ snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
+ }
+ return 0;
+}
+
+/* use space before codec name to simplify card ID, and simplify driver name */
+#define SOF_CARD_NAME "bdw rt5677" /* card name will be 'sof-bdw rt5677' */
+#define SOF_DRIVER_NAME "SOF"
+
+#define CARD_NAME "bdw-rt5677"
+#define DRIVER_NAME NULL /* card name will be used for driver name */
+
+/* ASoC machine driver for Broadwell DSP + RT5677 */
+static struct snd_soc_card bdw_rt5677_card = {
+ .name = CARD_NAME,
+ .driver_name = DRIVER_NAME,
+ .owner = THIS_MODULE,
+ .dai_link = bdw_rt5677_dais,
+ .num_links = ARRAY_SIZE(bdw_rt5677_dais),
+ .dapm_widgets = bdw_rt5677_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(bdw_rt5677_widgets),
+ .dapm_routes = bdw_rt5677_map,
+ .num_dapm_routes = ARRAY_SIZE(bdw_rt5677_map),
+ .controls = bdw_rt5677_controls,
+ .num_controls = ARRAY_SIZE(bdw_rt5677_controls),
+ .fully_routed = true,
+ .suspend_pre = bdw_rt5677_suspend_pre,
+ .resume_post = bdw_rt5677_resume_post,
+};
+
+static int bdw_rt5677_probe(struct platform_device *pdev)
+{
+ struct bdw_rt5677_priv *bdw_rt5677;
+ struct snd_soc_acpi_mach *mach;
+ int ret;
+
+ bdw_rt5677_card.dev = &pdev->dev;
+
+ /* Allocate driver private struct */
+ bdw_rt5677 = devm_kzalloc(&pdev->dev, sizeof(struct bdw_rt5677_priv),
+ GFP_KERNEL);
+ if (!bdw_rt5677)
+ return -ENOMEM;
+
+ /* override platform name, if required */
+ mach = pdev->dev.platform_data;
+ ret = snd_soc_fixup_dai_links_platform_name(&bdw_rt5677_card,
+ mach->mach_params.platform);
+ if (ret)
+ return ret;
+
+ /* set card and driver name */
+ if (snd_soc_acpi_sof_parent(&pdev->dev)) {
+ bdw_rt5677_card.name = SOF_CARD_NAME;
+ bdw_rt5677_card.driver_name = SOF_DRIVER_NAME;
+ } else {
+ bdw_rt5677_card.name = CARD_NAME;
+ bdw_rt5677_card.driver_name = DRIVER_NAME;
+ }
+
+ snd_soc_card_set_drvdata(&bdw_rt5677_card, bdw_rt5677);
+
+ return devm_snd_soc_register_card(&pdev->dev, &bdw_rt5677_card);
+}
+
+static struct platform_driver bdw_rt5677_audio = {
+ .probe = bdw_rt5677_probe,
+ .driver = {
+ .name = "bdw-rt5677",
+ .pm = &snd_soc_pm_ops
+ },
+};
+
+module_platform_driver(bdw_rt5677_audio)
+
+/* Module information */
+MODULE_AUTHOR("Ben Zhang");
+MODULE_DESCRIPTION("Intel Broadwell RT5677 machine driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:bdw-rt5677");