[alsa-devel] [PATCH 1/3] ASoC: Intel: sof_pcm512x: add support for SOF platforms with pcm512x
Pierre-Louis Bossart
pierre-louis.bossart at linux.intel.com
Wed Jan 29 23:36:01 CET 2020
Add support for multiple platforms, e.g. Apollolake based, using the
pcm512x audio codec.
The SOF developers and CI rely on the Up^2 and Hifiberry DAC+ boards
based on this codec for tests.
Signed-off-by: Kai Vehmanen <kai.vehmanen at linux.intel.com>
Signed-off-by: Pan Xiuli <xiuli.pan at linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan at linux.intel.com>
Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski at linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
---
sound/soc/intel/boards/Kconfig | 14 +
sound/soc/intel/boards/Makefile | 2 +
sound/soc/intel/boards/sof_pcm512x.c | 428 +++++++++++++++++++++++++++
3 files changed, 444 insertions(+)
create mode 100644 sound/soc/intel/boards/sof_pcm512x.c
diff --git a/sound/soc/intel/boards/Kconfig b/sound/soc/intel/boards/Kconfig
index 9ca2567d0059..755e1de19df9 100644
--- a/sound/soc/intel/boards/Kconfig
+++ b/sound/soc/intel/boards/Kconfig
@@ -457,6 +457,20 @@ config SND_SOC_INTEL_SOF_RT5682_MACH
with rt5682 codec.
Say Y if you have such a device.
If unsure select "N".
+
+config SND_SOC_INTEL_SOF_PCM512x_MACH
+ tristate "SOF with TI PCM512x codec"
+ depends on I2C && ACPI
+ depends on (SND_SOC_SOF_HDA_AUDIO_CODEC && (MFD_INTEL_LPSS || COMPILE_TEST)) ||\
+ (SND_SOC_SOF_BAYTRAIL && (X86_INTEL_LPSS || COMPILE_TEST))
+ select SND_SOC_PCM512x_I2C
+ select SND_HDA_CODEC_HDMI if SND_SOC_SOF_HDA_AUDIO_CODEC
+ help
+ This adds support for ASoC machine driver for SOF platforms
+ with TI PCM512x I2S audio codec.
+ Say Y or m if you have such a device.
+ If unsure select "N".
+
endif ## SND_SOC_SOF_HDA_LINK || SND_SOC_SOF_BAYTRAIL
if (SND_SOC_SOF_COMETLAKE_LP && SND_SOC_SOF_HDA_LINK)
diff --git a/sound/soc/intel/boards/Makefile b/sound/soc/intel/boards/Makefile
index b74ddd49bd39..781e7ec58e47 100644
--- a/sound/soc/intel/boards/Makefile
+++ b/sound/soc/intel/boards/Makefile
@@ -7,6 +7,7 @@ snd-soc-sst-bdw-rt5677-mach-objs := bdw-rt5677.o
snd-soc-sst-broadwell-objs := broadwell.o
snd-soc-sst-bxt-da7219_max98357a-objs := bxt_da7219_max98357a.o hda_dsp_common.o
snd-soc-sst-bxt-rt298-objs := bxt_rt298.o hda_dsp_common.o
+snd-soc-sst-sof-pcm512x-objs := sof_pcm512x.o hda_dsp_common.o
snd-soc-sst-glk-rt5682_max98357a-objs := glk_rt5682_max98357a.o hda_dsp_common.o
snd-soc-sst-bytcr-rt5640-objs := bytcr_rt5640.o
snd-soc-sst-bytcr-rt5651-objs := bytcr_rt5651.o
@@ -37,6 +38,7 @@ obj-$(CONFIG_SND_SOC_INTEL_BYT_RT5640_MACH) += snd-soc-sst-byt-rt5640-mach.o
obj-$(CONFIG_SND_SOC_INTEL_BYT_MAX98090_MACH) += snd-soc-sst-byt-max98090-mach.o
obj-$(CONFIG_SND_SOC_INTEL_BXT_DA7219_MAX98357A_COMMON) += snd-soc-sst-bxt-da7219_max98357a.o
obj-$(CONFIG_SND_SOC_INTEL_BXT_RT298_MACH) += snd-soc-sst-bxt-rt298.o
+obj-$(CONFIG_SND_SOC_INTEL_SOF_PCM512x_MACH) += snd-soc-sst-sof-pcm512x.o
obj-$(CONFIG_SND_SOC_INTEL_GLK_RT5682_MAX98357A_MACH) += snd-soc-sst-glk-rt5682_max98357a.o
obj-$(CONFIG_SND_SOC_INTEL_BROADWELL_MACH) += snd-soc-sst-broadwell.o
obj-$(CONFIG_SND_SOC_INTEL_BDW_RT5650_MACH) += snd-soc-sst-bdw-rt5650-mach.o
diff --git a/sound/soc/intel/boards/sof_pcm512x.c b/sound/soc/intel/boards/sof_pcm512x.c
new file mode 100644
index 000000000000..626153bd71e7
--- /dev/null
+++ b/sound/soc/intel/boards/sof_pcm512x.c
@@ -0,0 +1,428 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright(c) 2018-2020 Intel Corporation.
+
+/*
+ * Intel SOF Machine Driver for Intel platforms with TI PCM512x codec,
+ * e.g. Up or Up2 with Hifiberry DAC+ HAT
+ */
+#include <linux/clk.h>
+#include <linux/dmi.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/types.h>
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-acpi.h>
+#include "../../codecs/pcm512x.h"
+#include "../common/soc-intel-quirks.h"
+#include "hda_dsp_common.h"
+
+#define NAME_SIZE 32
+
+#define SOF_PCM512X_SSP_CODEC(quirk) ((quirk) & GENMASK(3, 0))
+#define SOF_PCM512X_SSP_CODEC_MASK (GENMASK(3, 0))
+
+/* Default: SSP5 */
+static unsigned long sof_pcm512x_quirk = SOF_PCM512X_SSP_CODEC(5);
+
+static bool is_legacy_cpu;
+
+struct sof_hdmi_pcm {
+ struct list_head head;
+ struct snd_soc_dai *codec_dai;
+ int device;
+};
+
+struct sof_card_private {
+ struct list_head hdmi_pcm_list;
+};
+
+static int sof_pcm512x_quirk_cb(const struct dmi_system_id *id)
+{
+ sof_pcm512x_quirk = (unsigned long)id->driver_data;
+ return 1;
+}
+
+static const struct dmi_system_id sof_pcm512x_quirk_table[] = {
+ {
+ .callback = sof_pcm512x_quirk_cb,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "UP-CHT01"),
+ },
+ .driver_data = (void *)(SOF_PCM512X_SSP_CODEC(2)),
+ },
+ {}
+};
+
+static int sof_hdmi_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct sof_card_private *ctx = snd_soc_card_get_drvdata(rtd->card);
+ struct snd_soc_dai *dai = rtd->codec_dai;
+ struct sof_hdmi_pcm *pcm;
+
+ pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
+ if (!pcm)
+ return -ENOMEM;
+
+ /* dai_link id is 1:1 mapped to the PCM device */
+ pcm->device = rtd->dai_link->id;
+ pcm->codec_dai = dai;
+
+ list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
+
+ return 0;
+}
+
+static int sof_pcm512x_codec_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_component *codec = rtd->codec_dai->component;
+
+ snd_soc_component_update_bits(codec, PCM512x_GPIO_EN, 0x08, 0x08);
+ snd_soc_component_update_bits(codec, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02);
+ snd_soc_component_update_bits(codec, PCM512x_GPIO_CONTROL_1,
+ 0x08, 0x08);
+
+ return 0;
+}
+
+static int aif1_startup(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_component *codec = rtd->codec_dai->component;
+
+ snd_soc_component_update_bits(codec, PCM512x_GPIO_CONTROL_1,
+ 0x08, 0x08);
+
+ return 0;
+}
+
+static void aif1_shutdown(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_component *codec = rtd->codec_dai->component;
+
+ snd_soc_component_update_bits(codec, PCM512x_GPIO_CONTROL_1,
+ 0x08, 0x00);
+}
+
+static const struct snd_soc_ops sof_pcm512x_ops = {
+ .startup = aif1_startup,
+ .shutdown = aif1_shutdown,
+};
+
+static struct snd_soc_dai_link_component platform_component[] = {
+ {
+ /* name might be overridden during probe */
+ .name = "0000:00:1f.3"
+ }
+};
+
+#if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
+static int sof_card_late_probe(struct snd_soc_card *card)
+{
+ struct sof_card_private *ctx = snd_soc_card_get_drvdata(card);
+ struct sof_hdmi_pcm *pcm;
+
+ /* HDMI is not supported by SOF on Baytrail/CherryTrail */
+ if (is_legacy_cpu)
+ return 0;
+
+ if (list_empty(&ctx->hdmi_pcm_list))
+ return -EINVAL;
+
+ pcm = list_first_entry(&ctx->hdmi_pcm_list, struct sof_hdmi_pcm, head);
+
+ return hda_dsp_hdmi_build_controls(card, pcm->codec_dai->component);
+}
+#else
+static int sof_card_late_probe(struct snd_soc_card *card)
+{
+ return 0;
+}
+#endif
+
+static const struct snd_kcontrol_new sof_controls[] = {
+ SOC_DAPM_PIN_SWITCH("Ext Spk"),
+};
+
+static const struct snd_soc_dapm_widget sof_widgets[] = {
+ SND_SOC_DAPM_SPK("Ext Spk", NULL),
+};
+
+static const struct snd_soc_dapm_widget dmic_widgets[] = {
+ SND_SOC_DAPM_MIC("SoC DMIC", NULL),
+};
+
+static const struct snd_soc_dapm_route sof_map[] = {
+ /* Speaker */
+ {"Ext Spk", NULL, "OUTR"},
+ {"Ext Spk", NULL, "OUTL"},
+};
+
+static const struct snd_soc_dapm_route dmic_map[] = {
+ /* digital mics */
+ {"DMic", NULL, "SoC DMIC"},
+};
+
+static int dmic_init(struct snd_soc_pcm_runtime *rtd)
+{
+ struct snd_soc_card *card = rtd->card;
+ int ret;
+
+ ret = snd_soc_dapm_new_controls(&card->dapm, dmic_widgets,
+ ARRAY_SIZE(dmic_widgets));
+ if (ret) {
+ dev_err(card->dev, "DMic widget addition failed: %d\n", ret);
+ /* Don't need to add routes if widget addition failed */
+ return ret;
+ }
+
+ ret = snd_soc_dapm_add_routes(&card->dapm, dmic_map,
+ ARRAY_SIZE(dmic_map));
+
+ if (ret)
+ dev_err(card->dev, "DMic map addition failed: %d\n", ret);
+
+ return ret;
+}
+
+/* sof audio machine driver for pcm512x codec */
+static struct snd_soc_card sof_audio_card_pcm512x = {
+ .name = "pcm512x",
+ .owner = THIS_MODULE,
+ .controls = sof_controls,
+ .num_controls = ARRAY_SIZE(sof_controls),
+ .dapm_widgets = sof_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(sof_widgets),
+ .dapm_routes = sof_map,
+ .num_dapm_routes = ARRAY_SIZE(sof_map),
+ .fully_routed = true,
+ .late_probe = sof_card_late_probe,
+};
+
+SND_SOC_DAILINK_DEF(pcm512x_component,
+ DAILINK_COMP_ARRAY(COMP_CODEC("i2c-104C5122:00", "pcm512x-hifi")));
+SND_SOC_DAILINK_DEF(dmic_component,
+ DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec", "dmic-hifi")));
+
+static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev,
+ int ssp_codec,
+ int dmic_be_num,
+ int hdmi_num)
+{
+ struct snd_soc_dai_link_component *idisp_components;
+ struct snd_soc_dai_link_component *cpus;
+ struct snd_soc_dai_link *links;
+ int i, id = 0;
+
+ links = devm_kcalloc(dev, sof_audio_card_pcm512x.num_links,
+ sizeof(struct snd_soc_dai_link), GFP_KERNEL);
+ cpus = devm_kcalloc(dev, sof_audio_card_pcm512x.num_links,
+ sizeof(struct snd_soc_dai_link_component), GFP_KERNEL);
+ if (!links || !cpus)
+ goto devm_err;
+
+ /* codec SSP */
+ links[id].name = devm_kasprintf(dev, GFP_KERNEL,
+ "SSP%d-Codec", ssp_codec);
+ if (!links[id].name)
+ goto devm_err;
+
+ links[id].id = id;
+ links[id].codecs = pcm512x_component;
+ links[id].num_codecs = ARRAY_SIZE(pcm512x_component);
+ links[id].platforms = platform_component;
+ links[id].num_platforms = ARRAY_SIZE(platform_component);
+ links[id].init = sof_pcm512x_codec_init;
+ links[id].ops = &sof_pcm512x_ops;
+ links[id].nonatomic = true;
+ links[id].dpcm_playback = 1;
+ /*
+ * capture only supported with specific versions of the Hifiberry DAC+
+ * links[id].dpcm_capture = 1;
+ */
+ links[id].no_pcm = 1;
+ links[id].cpus = &cpus[id];
+ links[id].num_cpus = 1;
+ if (is_legacy_cpu) {
+ links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
+ "ssp%d-port",
+ ssp_codec);
+ if (!links[id].cpus->dai_name)
+ goto devm_err;
+ } else {
+ links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
+ "SSP%d Pin",
+ ssp_codec);
+ if (!links[id].cpus->dai_name)
+ goto devm_err;
+ }
+ id++;
+
+ /* dmic */
+ if (dmic_be_num > 0) {
+ /* at least we have dmic01 */
+ links[id].name = "dmic01";
+ links[id].cpus = &cpus[id];
+ links[id].cpus->dai_name = "DMIC01 Pin";
+ links[id].init = dmic_init;
+ if (dmic_be_num > 1) {
+ /* set up 2 BE links at most */
+ links[id + 1].name = "dmic16k";
+ links[id + 1].cpus = &cpus[id + 1];
+ links[id + 1].cpus->dai_name = "DMIC16k Pin";
+ dmic_be_num = 2;
+ }
+ }
+
+ for (i = 0; i < dmic_be_num; i++) {
+ links[id].id = id;
+ links[id].num_cpus = 1;
+ links[id].codecs = dmic_component;
+ links[id].num_codecs = ARRAY_SIZE(dmic_component);
+ links[id].platforms = platform_component;
+ links[id].num_platforms = ARRAY_SIZE(platform_component);
+ links[id].ignore_suspend = 1;
+ links[id].dpcm_capture = 1;
+ links[id].no_pcm = 1;
+ id++;
+ }
+
+ /* HDMI */
+ if (hdmi_num > 0) {
+ idisp_components = devm_kcalloc(dev, hdmi_num,
+ sizeof(struct snd_soc_dai_link_component),
+ GFP_KERNEL);
+ if (!idisp_components)
+ goto devm_err;
+ }
+ for (i = 1; i <= hdmi_num; i++) {
+ links[id].name = devm_kasprintf(dev, GFP_KERNEL,
+ "iDisp%d", i);
+ if (!links[id].name)
+ goto devm_err;
+
+ links[id].id = id;
+ links[id].cpus = &cpus[id];
+ links[id].num_cpus = 1;
+ links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
+ "iDisp%d Pin", i);
+ if (!links[id].cpus->dai_name)
+ goto devm_err;
+
+ idisp_components[i - 1].name = "ehdaudio0D2";
+ idisp_components[i - 1].dai_name = devm_kasprintf(dev,
+ GFP_KERNEL,
+ "intel-hdmi-hifi%d",
+ i);
+ if (!idisp_components[i - 1].dai_name)
+ goto devm_err;
+
+ links[id].codecs = &idisp_components[i - 1];
+ links[id].num_codecs = 1;
+ links[id].platforms = platform_component;
+ links[id].num_platforms = ARRAY_SIZE(platform_component);
+ links[id].init = sof_hdmi_init;
+ links[id].dpcm_playback = 1;
+ links[id].no_pcm = 1;
+ id++;
+ }
+
+ return links;
+devm_err:
+ return NULL;
+}
+
+static int sof_audio_probe(struct platform_device *pdev)
+{
+ struct snd_soc_dai_link *dai_links;
+ struct snd_soc_acpi_mach *mach;
+ struct sof_card_private *ctx;
+ int dmic_be_num, hdmi_num;
+ int ret, ssp_codec;
+
+ ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ hdmi_num = 0;
+ if (soc_intel_is_byt() || soc_intel_is_cht()) {
+ is_legacy_cpu = true;
+ dmic_be_num = 0;
+ /* default quirk for legacy cpu */
+ sof_pcm512x_quirk = SOF_PCM512X_SSP_CODEC(2);
+ } else {
+ dmic_be_num = 2;
+#if IS_ENABLED(CONFIG_SND_HDA_CODEC_HDMI)
+ hdmi_num = 3;
+#endif
+ }
+
+ dmi_check_system(sof_pcm512x_quirk_table);
+
+ dev_dbg(&pdev->dev, "sof_pcm512x_quirk = %lx\n", sof_pcm512x_quirk);
+
+ ssp_codec = sof_pcm512x_quirk & SOF_PCM512X_SSP_CODEC_MASK;
+
+ /* compute number of dai links */
+ sof_audio_card_pcm512x.num_links = 1 + dmic_be_num + hdmi_num;
+
+ dai_links = sof_card_dai_links_create(&pdev->dev, ssp_codec,
+ dmic_be_num, hdmi_num);
+ if (!dai_links)
+ return -ENOMEM;
+
+ sof_audio_card_pcm512x.dai_link = dai_links;
+
+ INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
+
+ sof_audio_card_pcm512x.dev = &pdev->dev;
+ mach = (&pdev->dev)->platform_data;
+
+ /* set platform name for each dailink */
+ ret = snd_soc_fixup_dai_links_platform_name(&sof_audio_card_pcm512x,
+ mach->mach_params.platform);
+ if (ret)
+ return ret;
+
+ snd_soc_card_set_drvdata(&sof_audio_card_pcm512x, ctx);
+
+ return devm_snd_soc_register_card(&pdev->dev,
+ &sof_audio_card_pcm512x);
+}
+
+static int sof_pcm512x_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct snd_soc_component *component = NULL;
+
+ for_each_card_components(card, component) {
+ if (!strcmp(component->name, pcm512x_component[0].name)) {
+ snd_soc_component_set_jack(component, NULL, NULL);
+ break;
+ }
+ }
+
+ return 0;
+}
+
+static struct platform_driver sof_audio = {
+ .probe = sof_audio_probe,
+ .remove = sof_pcm512x_remove,
+ .driver = {
+ .name = "sof_pcm512x",
+ .pm = &snd_soc_pm_ops,
+ },
+};
+module_platform_driver(sof_audio)
+
+MODULE_DESCRIPTION("ASoC Intel(R) SOF + PCM512x Machine driver");
+MODULE_AUTHOR("Pierre-Louis Bossart");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:sof_pcm512x");
--
2.20.1
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