--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Machine driver for AMD ACP Audio engine using DA7219 & MAX98357 codec.
+//
+//Copyright 2016 Advanced Micro Devices, Inc.
+
+#include <sound/core.h>
+#include <sound/soc.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc-dapm.h>
+#include <sound/jack.h>
+#include <linux/clk.h>
+#include <linux/gpio.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/acpi.h>
+
+#include "raven/acp3x.h"
+#include "../codecs/rt5682.h"
+
+#define PCO_PLAT_CLK 48000000
+#define RT5682_PLL_FREQ (48000 * 512)
+#define DUAL_CHANNEL 2
+
+static struct snd_soc_jack pco_jack;
+static struct clk *rt5682_dai_wclk;
+static struct clk *rt5682_dai_bclk;
+
+static int acp3x_5682_init(struct snd_soc_pcm_runtime *rtd)
+{
+ int ret;
+ struct snd_soc_card *card = rtd->card;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ struct snd_soc_component *component = codec_dai->component;
+
+ dev_info(rtd->dev, "codec dai name = %s\n", codec_dai->name);
+
+ /* set rt5682 dai fmt */
+ ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
+ | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM);
+ if (ret < 0) {
+ dev_err(rtd->card->dev,
+ "Failed to set rt5682 dai fmt: %d\n", ret);
+ return ret;
+ }
+
+ /* set codec PLL */
+ ret = snd_soc_dai_set_pll(codec_dai, RT5682_PLL2, RT5682_PLL2_S_MCLK,
+ PCO_PLAT_CLK, RT5682_PLL_FREQ);
+ if (ret < 0) {
+ dev_err(rtd->dev, "can't set rt5682 PLL: %d\n", ret);
+ return ret;
+ }
+
+ /* Set codec sysclk */
+ ret = snd_soc_dai_set_sysclk(codec_dai, RT5682_SCLK_S_PLL2,
+ RT5682_PLL_FREQ, SND_SOC_CLOCK_IN);
+ if (ret < 0) {
+ dev_err(rtd->dev,
+ "Failed to set rt5682 SYSCLK: %d\n", ret);
+ return ret;
+ }
+
+ /* Set tdm/i2s1 master bclk ratio */
+ ret = snd_soc_dai_set_bclk_ratio(codec_dai, 64);
+ if (ret < 0) {
+ dev_err(rtd->dev,
+ "Failed to set rt5682 tdm bclk ratio: %d\n", ret);
+ return ret;
+ }
+
+ rt5682_dai_wclk = clk_get(component->dev, "rt5682-dai-wclk");
+ rt5682_dai_bclk = clk_get(component->dev, "rt5682-dai-bclk");
+
+ ret = snd_soc_card_jack_new(card, "Headset Jack",
+ SND_JACK_HEADSET | SND_JACK_LINEOUT |
+ SND_JACK_BTN_0 | SND_JACK_BTN_1 |
+ SND_JACK_BTN_2 | SND_JACK_BTN_3,
+ &pco_jack, NULL, 0);
+ if (ret) {
+ dev_err(card->dev, "HP jack creation failed %d\n", ret);
+ return ret;
+ }
+
+ snd_jack_set_key(pco_jack.jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
+ snd_jack_set_key(pco_jack.jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
+ snd_jack_set_key(pco_jack.jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
+ snd_jack_set_key(pco_jack.jack, SND_JACK_BTN_3, KEY_VOICECOMMAND);
+
+ ret = snd_soc_component_set_jack(component, &pco_jack, NULL);
+ if (ret) {
+ dev_err(rtd->dev, "Headset Jack call-back failed: %d\n", ret);
+ return ret;
+ }
+
+ return ret;
+}
+
+static int rt5682_clk_enable(struct snd_pcm_substream *substream)
+{
+ int ret = 0;
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+
+ /* RT5682 will support only 48K output with 48M mclk */
+ clk_set_rate(rt5682_dai_wclk, 48000);
+ clk_set_rate(rt5682_dai_bclk, 48000 * 64);
+ ret = clk_prepare_enable(rt5682_dai_wclk);
+ if (ret < 0) {
+ dev_err(rtd->dev, "can't enable wclk %d\n", ret);
+ return ret;
+ }
+
+ return ret;
+}
+
+static void rt5682_clk_disable(void)
+{
+ clk_disable_unprepare(rt5682_dai_wclk);
+}
+
+static const unsigned int channels[] = {
+ DUAL_CHANNEL,
+};
+
+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 struct snd_pcm_hw_constraint_list constraints_channels = {
+ .count = ARRAY_SIZE(channels),
+ .list = channels,
+ .mask = 0,
+};
+
+static int acp3x_5682_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 acp3x_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 rt5682_clk_enable(substream);
+}
+
+static int acp3x_max_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 acp3x_platform_info *machine = snd_soc_card_get_drvdata(card);
+
+ machine->play_i2s_instance = I2S_BT_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 rt5682_clk_enable(substream);
+}
+
+static int acp3x_ec_startup(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_card *card = rtd->card;
+ struct snd_soc_dai *codec_dai = rtd->codec_dai;
+ struct acp3x_platform_info *machine = snd_soc_card_get_drvdata(card);
+
+ machine->cap_i2s_instance = I2S_BT_INSTANCE;
+ snd_soc_dai_set_bclk_ratio(codec_dai, 64);
+
+ return rt5682_clk_enable(substream);
+}
+
+static void rt5682_shutdown(struct snd_pcm_substream *substream)
+{
+ rt5682_clk_disable();
+}
+
+static const struct snd_soc_ops acp3x_5682_ops = {
+ .startup = acp3x_5682_startup,
+ .shutdown = rt5682_shutdown,
+};
+
+static const struct snd_soc_ops acp3x_max_play_ops = {
+ .startup = acp3x_max_startup,
+ .shutdown = rt5682_shutdown,
+};
+
+static const struct snd_soc_ops acp3x_ec_cap_ops = {
+ .startup = acp3x_ec_startup,
+ .shutdown = rt5682_shutdown,
+};
+
+SND_SOC_DAILINK_DEF(acp3x_i2s,
+ DAILINK_COMP_ARRAY(COMP_CPU("acp3x_i2s_playcap.0")));
+SND_SOC_DAILINK_DEF(acp3x_bt,
+ DAILINK_COMP_ARRAY(COMP_CPU("acp3x_i2s_playcap.2")));
+
+SND_SOC_DAILINK_DEF(rt5682,
+ DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10EC5682:00", "rt5682-aif1")));
+SND_SOC_DAILINK_DEF(max,
+ DAILINK_COMP_ARRAY(COMP_CODEC("MX98357A:00", "HiFi")));
+SND_SOC_DAILINK_DEF(cros_ec,
+ DAILINK_COMP_ARRAY(COMP_CODEC("GOOG0013:00", "EC Codec I2S RX")));
+
+SND_SOC_DAILINK_DEF(platform,
+ DAILINK_COMP_ARRAY(COMP_PLATFORM("acp3x_rv_i2s_dma.0")));
+
+static struct snd_soc_dai_link acp3x_dai_5682_98357[] = {
+ {
+ .name = "acp3x-5682-play",
+ .stream_name = "Playback",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM,
+ .init = acp3x_5682_init,
+ .dpcm_playback = 1,
+ .dpcm_capture = 1,
+ .ops = &acp3x_5682_ops,
+ SND_SOC_DAILINK_REG(acp3x_i2s, rt5682, platform),
+ },
+ {
+ .name = "acp3x-max98357-play",
+ .stream_name = "HiFi Playback",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM,
+ .dpcm_playback = 1,
+ .ops = &acp3x_max_play_ops,
+ SND_SOC_DAILINK_REG(acp3x_bt, max, platform),
+ },
+ {
+ .name = "acp3x-ec-capture",
+ .stream_name = "Capture",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBS_CFS,
+ .dpcm_capture = 1,
+ .ops = &acp3x_ec_cap_ops,
+ SND_SOC_DAILINK_REG(acp3x_bt, cros_ec, platform),
+ },
+};
+
+static const struct snd_soc_dapm_widget acp3x_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone Jack", NULL),
+ SND_SOC_DAPM_SPK("Spk", NULL),
+ SND_SOC_DAPM_MIC("Headset Mic", NULL),
+};
+
+static const struct snd_soc_dapm_route acp3x_audio_route[] = {
+ {"Headphone Jack", NULL, "HPOL"},
+ {"Headphone Jack", NULL, "HPOR"},
+ {"IN1P", NULL, "Headset Mic"},
+ {"Spk", NULL, "Speaker"},
+};
+
+static const struct snd_kcontrol_new acp3x_mc_controls[] = {
+ SOC_DAPM_PIN_SWITCH("Headphone Jack"),
+ SOC_DAPM_PIN_SWITCH("Spk"),
+ SOC_DAPM_PIN_SWITCH("Headset Mic"),
+};
+
+static struct snd_soc_card acp3x_card = {
+ .name = "acp3xalc5682m98357",
+ .owner = THIS_MODULE,
+ .dai_link = acp3x_dai_5682_98357,
+ .num_links = ARRAY_SIZE(acp3x_dai_5682_98357),
+ .dapm_widgets = acp3x_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(acp3x_widgets),
+ .dapm_routes = acp3x_audio_route,
+ .num_dapm_routes = ARRAY_SIZE(acp3x_audio_route),
+ .controls = acp3x_mc_controls,
+ .num_controls = ARRAY_SIZE(acp3x_mc_controls),
+};
+
+static int acp3x_probe(struct platform_device *pdev)
+{
+ int ret;
+ struct snd_soc_card *card;
+ struct acp3x_platform_info *machine;
+
+ machine = devm_kzalloc(&pdev->dev, sizeof(*machine), GFP_KERNEL);
+ if (!machine)
+ return -ENOMEM;
+
+ card = &acp3x_card;
+ acp3x_card.dev = &pdev->dev;
+ platform_set_drvdata(pdev, card);
+ snd_soc_card_set_drvdata(card, machine);
+ ret = devm_snd_soc_register_card(&pdev->dev, &acp3x_card);
+ if (ret) {
+ dev_err(&pdev->dev,
+ "devm_snd_soc_register_card(%s) failed: %d\n",
+ acp3x_card.name, ret);
+ return ret;
+ }
+ return 0;
+}
+
+static const struct acpi_device_id acp3x_audio_acpi_match[] = {
+ { "AMDI5682", 0 },
+ {},
+};
+MODULE_DEVICE_TABLE(acpi, acp3x_audio_acpi_match);
+
+static struct platform_driver acp3x_audio = {
+ .driver = {
+ .name = "acp3x-alc5682-max98357",
+ .acpi_match_table = ACPI_PTR(acp3x_audio_acpi_match),
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = acp3x_probe,
+};
+
+module_platform_driver(acp3x_audio);
+
+MODULE_AUTHOR("akshu.agrawal@amd.com");
+MODULE_DESCRIPTION("ALC5682 & MAX98357 audio support");
+MODULE_LICENSE("GPL v2");
projects / platform / kernel / linux-rpi.git / commitdiff