--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Machine driver for AMD Vangogh platform using NAU8821 & CS35L41
+ * codecs.
+ *
+ * Copyright 2021 Advanced Micro Devices, Inc.
+ */
+
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+
+#include <sound/jack.h>
+#include <linux/clk.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/io.h>
+#include <linux/acpi.h>
+#include <linux/dmi.h>
+
+#include "../../codecs/nau8821.h"
+#include "../../codecs/cs35l41.h"
+
+#include "acp5x.h"
+
+#define DRV_NAME "acp5x_mach"
+#define DUAL_CHANNEL 2
+#define ACP5X_NUVOTON_CODEC_DAI "nau8821-hifi"
+#define VG_JUPITER 1
+
+static unsigned long acp5x_machine_id;
+static struct snd_soc_jack vg_headset;
+
+static struct snd_soc_jack_pin acp5x_nau8821_jack_pins[] = {
+ {
+ .pin = "Headphone",
+ .mask = SND_JACK_HEADPHONE,
+ },
+ {
+ .pin = "Headset Mic",
+ .mask = SND_JACK_MICROPHONE,
+ },
+};
+
+static int acp5x_8821_init(struct snd_soc_pcm_runtime *rtd)
+{
+ int ret;
+ struct snd_soc_card *card = rtd->card;
+ struct snd_soc_component *component =
+ asoc_rtd_to_codec(rtd, 0)->component;
+
+ /*
+ * Headset buttons map to the google Reference headset.
+ * These can be configured by userspace.
+ */
+ ret = snd_soc_card_jack_new(card, "Headset Jack",
+ SND_JACK_HEADSET | SND_JACK_BTN_0,
+ &vg_headset, acp5x_nau8821_jack_pins,
+ ARRAY_SIZE(acp5x_nau8821_jack_pins));
+ if (ret) {
+ dev_err(rtd->dev, "Headset Jack creation failed %d\n", ret);
+ return ret;
+ }
+
+ snd_jack_set_key(vg_headset.jack, SND_JACK_BTN_0, KEY_MEDIA);
+ nau8821_enable_jack_detect(component, &vg_headset);
+ return ret;
+}
+
+static int acp5x_cs35l41_init(struct snd_soc_pcm_runtime *rtd)
+{
+ return 0;
+}
+
+static const unsigned int rates[] = {
+ 48000,
+};
+
+static const struct snd_pcm_hw_constraint_list constraints_rates = {
+ .count = ARRAY_SIZE(rates),
+ .list = rates,
+ .mask = 0,
+};
+
+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 acp5x_8821_startup(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_card *card = rtd->card;
+ struct acp5x_platform_info *machine = snd_soc_card_get_drvdata(card);
+
+ machine->play_i2s_instance = I2S_SP_INSTANCE;
+ machine->cap_i2s_instance = I2S_SP_INSTANCE;
+
+ runtime->hw.channels_max = DUAL_CHANNEL;
+ snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+ &constraints_channels);
+ snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
+ &constraints_rates);
+ return 0;
+}
+
+static int acp5x_nau8821_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_card *card = rtd->card;
+ struct snd_soc_dai *codec_dai =
+ snd_soc_card_get_codec_dai(card,
+ ACP5X_NUVOTON_CODEC_DAI);
+ int ret;
+
+ ret = snd_soc_dai_set_sysclk(codec_dai, NAU8821_CLK_FLL_BLK, 0,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ dev_err(card->dev, "can't set FS clock %d\n", ret);
+ ret = snd_soc_dai_set_pll(codec_dai, 0, 0, snd_soc_params_to_bclk(params),
+ params_rate(params) * 256);
+ if (ret < 0)
+ dev_err(card->dev, "can't set FLL: %d\n", ret);
+
+ return ret;
+}
+
+static int acp5x_cs35l41_startup(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_card *card = rtd->card;
+ struct acp5x_platform_info *machine = snd_soc_card_get_drvdata(card);
+
+ machine->play_i2s_instance = I2S_HS_INSTANCE;
+
+ runtime->hw.channels_max = DUAL_CHANNEL;
+ snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+ &constraints_channels);
+ snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
+ &constraints_rates);
+ return 0;
+}
+
+static int acp5x_cs35l41_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_card *card = rtd->card;
+ struct snd_soc_dai *codec_dai;
+ int ret, i;
+ unsigned int num_codecs = rtd->num_codecs;
+ unsigned int bclk_val;
+
+ for (i = 0; i < num_codecs; i++) {
+ codec_dai = asoc_rtd_to_codec(rtd, i);
+ if ((strcmp(codec_dai->name, "spi-VLV1776:00") == 0) ||
+ (strcmp(codec_dai->name, "spi-VLV1776:01") == 0)) {
+ switch (params_rate(params)) {
+ case 48000:
+ bclk_val = 1536000;
+ break;
+ default:
+ dev_err(card->dev, "Invalid Samplerate:0x%x\n",
+ params_rate(params));
+ return -EINVAL;
+ }
+ ret = snd_soc_component_set_sysclk(codec_dai->component,
+ 0, 0, bclk_val, SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ dev_err(card->dev, "failed to set sysclk for CS35l41 dai\n");
+ return ret;
+ }
+ }
+ }
+
+ return ret;
+}
+
+static const struct snd_soc_ops acp5x_8821_ops = {
+ .startup = acp5x_8821_startup,
+ .hw_params = acp5x_nau8821_hw_params,
+};
+
+static const struct snd_soc_ops acp5x_cs35l41_play_ops = {
+ .startup = acp5x_cs35l41_startup,
+ .hw_params = acp5x_cs35l41_hw_params,
+};
+
+static struct snd_soc_codec_conf cs35l41_conf[] = {
+ {
+ .dlc = COMP_CODEC_CONF("spi-VLV1776:00"),
+ .name_prefix = "Left",
+ },
+ {
+ .dlc = COMP_CODEC_CONF("spi-VLV1776:01"),
+ .name_prefix = "Right",
+ },
+};
+
+SND_SOC_DAILINK_DEF(acp5x_i2s,
+ DAILINK_COMP_ARRAY(COMP_CPU("acp5x_i2s_playcap.0")));
+
+SND_SOC_DAILINK_DEF(acp5x_bt,
+ DAILINK_COMP_ARRAY(COMP_CPU("acp5x_i2s_playcap.1")));
+
+SND_SOC_DAILINK_DEF(nau8821,
+ DAILINK_COMP_ARRAY(COMP_CODEC("i2c-NVTN2020:00",
+ "nau8821-hifi")));
+
+SND_SOC_DAILINK_DEF(cs35l41,
+ DAILINK_COMP_ARRAY(COMP_CODEC("spi-VLV1776:00", "cs35l41-pcm"),
+ COMP_CODEC("spi-VLV1776:01", "cs35l41-pcm")));
+
+SND_SOC_DAILINK_DEF(platform,
+ DAILINK_COMP_ARRAY(COMP_PLATFORM("acp5x_i2s_dma.0")));
+
+static struct snd_soc_dai_link acp5x_dai[] = {
+ {
+ .name = "acp5x-8825-play",
+ .stream_name = "Playback/Capture",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBC_CFC,
+ .dpcm_playback = 1,
+ .dpcm_capture = 1,
+ .ops = &acp5x_8821_ops,
+ .init = acp5x_8821_init,
+ SND_SOC_DAILINK_REG(acp5x_i2s, nau8821, platform),
+ },
+ {
+ .name = "acp5x-CS35L41-Stereo",
+ .stream_name = "CS35L41 Stereo Playback",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBC_CFC,
+ .dpcm_playback = 1,
+ .playback_only = 1,
+ .ops = &acp5x_cs35l41_play_ops,
+ .init = acp5x_cs35l41_init,
+ SND_SOC_DAILINK_REG(acp5x_bt, cs35l41, platform),
+ },
+};
+
+static int platform_clock_control(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 snd_soc_dai *codec_dai;
+ int ret = 0;
+
+ codec_dai = snd_soc_card_get_codec_dai(card, ACP5X_NUVOTON_CODEC_DAI);
+ if (!codec_dai) {
+ dev_err(card->dev, "Codec dai not found\n");
+ return -EIO;
+ }
+
+ if (SND_SOC_DAPM_EVENT_OFF(event)) {
+ ret = snd_soc_dai_set_sysclk(codec_dai, NAU8821_CLK_INTERNAL,
+ 0, SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ dev_err(card->dev, "set sysclk err = %d\n", ret);
+ return -EIO;
+ }
+ }
+ return ret;
+}
+
+static const struct snd_kcontrol_new acp5x_8821_controls[] = {
+ SOC_DAPM_PIN_SWITCH("Headphone"),
+ SOC_DAPM_PIN_SWITCH("Headset Mic"),
+ SOC_DAPM_PIN_SWITCH("Int Mic"),
+};
+
+static const struct snd_soc_dapm_widget acp5x_8821_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone", NULL),
+ SND_SOC_DAPM_MIC("Headset Mic", NULL),
+ SND_SOC_DAPM_MIC("Int Mic", NULL),
+ SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
+ platform_clock_control, SND_SOC_DAPM_POST_PMD),
+};
+
+static const struct snd_soc_dapm_route acp5x_8821_audio_route[] = {
+ /* HP jack connectors - unknown if we have jack detection */
+ { "Headphone", NULL, "HPOL" },
+ { "Headphone", NULL, "HPOR" },
+ { "MICL", NULL, "Headset Mic" },
+ { "MICR", NULL, "Headset Mic" },
+ { "DMIC", NULL, "Int Mic" },
+
+ { "Headphone", NULL, "Platform Clock" },
+ { "Headset Mic", NULL, "Platform Clock" },
+ { "Int Mic", NULL, "Platform Clock" },
+};
+
+static struct snd_soc_card acp5x_card = {
+ .name = "acp5x",
+ .owner = THIS_MODULE,
+ .dai_link = acp5x_dai,
+ .num_links = ARRAY_SIZE(acp5x_dai),
+ .dapm_widgets = acp5x_8821_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(acp5x_8821_widgets),
+ .dapm_routes = acp5x_8821_audio_route,
+ .num_dapm_routes = ARRAY_SIZE(acp5x_8821_audio_route),
+ .codec_conf = cs35l41_conf,
+ .num_configs = ARRAY_SIZE(cs35l41_conf),
+ .controls = acp5x_8821_controls,
+ .num_controls = ARRAY_SIZE(acp5x_8821_controls),
+};
+
+
+static int acp5x_vg_quirk_cb(const struct dmi_system_id *id)
+{
+ acp5x_machine_id = VG_JUPITER;
+ return 1;
+}
+
+static const struct dmi_system_id acp5x_vg_quirk_table[] = {
+ {
+ .callback = acp5x_vg_quirk_cb,
+ .matches = {
+ DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Valve"),
+ DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Jupiter"),
+ }
+ },
+ {}
+};
+
+static int acp5x_probe(struct platform_device *pdev)
+{
+ int ret;
+ struct acp5x_platform_info *machine;
+ struct snd_soc_card *card;
+
+ machine = devm_kzalloc(&pdev->dev, sizeof(struct acp5x_platform_info),
+ GFP_KERNEL);
+ if (!machine)
+ return -ENOMEM;
+
+ dmi_check_system(acp5x_vg_quirk_table);
+ switch(acp5x_machine_id) {
+ case VG_JUPITER:
+ card = &acp5x_card;
+ acp5x_card.dev = &pdev->dev;
+ break;
+ default:
+ return -ENODEV;
+ }
+ platform_set_drvdata(pdev, card);
+ snd_soc_card_set_drvdata(card, machine);
+
+ ret = devm_snd_soc_register_card(&pdev->dev, card);
+ if (ret) {
+ return dev_err_probe(&pdev->dev, ret,
+ "snd_soc_register_card(%s) failed\n",
+ acp5x_card.name);
+ }
+ return 0;
+}
+
+static struct platform_driver acp5x_mach_driver = {
+ .driver = {
+ .name = "acp5x_mach",
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = acp5x_probe,
+};
+
+module_platform_driver(acp5x_mach_driver);
+
+MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
+MODULE_DESCRIPTION("NAU8821 & CS35L41 audio support");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRV_NAME);
OSDN Git Service
