--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright(c) 2021-2022 Intel Corporation. All rights reserved.
+//
+// Authors: Cezary Rojewski <cezary.rojewski@intel.com>
+// Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
+//
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-acpi.h>
+#include "../../../codecs/nau8825.h"
+
+#define SKL_NUVOTON_CODEC_DAI "nau8825-hifi"
+#define SKL_SSM_CODEC_DAI "ssm4567-hifi"
+
+static struct snd_soc_codec_conf card_codec_conf[] = {
+ {
+ .dlc = COMP_CODEC_CONF("i2c-INT343B:00"),
+ .name_prefix = "Left",
+ },
+ {
+ .dlc = COMP_CODEC_CONF("i2c-INT343B:01"),
+ .name_prefix = "Right",
+ },
+};
+
+static const struct snd_kcontrol_new card_controls[] = {
+ SOC_DAPM_PIN_SWITCH("Left Speaker"),
+ SOC_DAPM_PIN_SWITCH("Right Speaker"),
+};
+
+static int
+platform_clock_control(struct snd_soc_dapm_widget *w, struct snd_kcontrol *control, 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;
+
+ codec_dai = snd_soc_card_get_codec_dai(card, SKL_NUVOTON_CODEC_DAI);
+ if (!codec_dai) {
+ dev_err(card->dev, "Codec dai not found\n");
+ return -EINVAL;
+ }
+
+ if (SND_SOC_DAPM_EVENT_ON(event)) {
+ ret = snd_soc_dai_set_sysclk(codec_dai, NAU8825_CLK_MCLK, 24000000,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ dev_err(card->dev, "set sysclk err = %d\n", ret);
+ } else {
+ ret = snd_soc_dai_set_sysclk(codec_dai, NAU8825_CLK_INTERNAL, 0, SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ dev_err(card->dev, "set sysclk err = %d\n", ret);
+ }
+
+ return ret;
+}
+
+static const struct snd_soc_dapm_widget card_widgets[] = {
+ SND_SOC_DAPM_SPK("Left Speaker", NULL),
+ SND_SOC_DAPM_SPK("Right Speaker", NULL),
+ SND_SOC_DAPM_SPK("DP1", NULL),
+ SND_SOC_DAPM_SPK("DP2", NULL),
+ SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, platform_clock_control,
+ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
+};
+
+static const struct snd_soc_dapm_route card_base_routes[] = {
+ {"Left Speaker", NULL, "Left OUT"},
+ {"Right Speaker", NULL, "Right OUT"},
+};
+
+static int avs_ssm4567_codec_init(struct snd_soc_pcm_runtime *runtime)
+{
+ int ret;
+
+ /* Slot 1 for left */
+ ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(runtime, 0), 0x01, 0x01, 2, 48);
+ if (ret < 0)
+ return ret;
+
+ /* Slot 2 for right */
+ ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_codec(runtime, 1), 0x02, 0x02, 2, 48);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int
+avs_ssm4567_be_fixup(struct snd_soc_pcm_runtime *runrime, struct snd_pcm_hw_params *params)
+{
+ struct snd_interval *rate, *channels;
+ struct snd_mask *fmt;
+
+ rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+ channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+ fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+
+ /* The ADSP will covert the FE rate to 48k, stereo */
+ rate->min = rate->max = 48000;
+ channels->min = channels->max = 2;
+
+ /* set SSP0 to 24 bit */
+ snd_mask_none(fmt);
+ snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
+ return 0;
+}
+
+static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port,
+ struct snd_soc_dai_link **dai_link)
+{
+ struct snd_soc_dai_link_component *platform;
+ struct snd_soc_dai_link *dl;
+
+ dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL);
+ platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL);
+ if (!dl || !platform)
+ return -ENOMEM;
+
+ platform->name = platform_name;
+
+ dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port);
+ dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL);
+ dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs) * 2, GFP_KERNEL);
+ if (!dl->name || !dl->cpus || !dl->codecs)
+ return -ENOMEM;
+
+ dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", ssp_port);
+ dl->codecs[0].name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343B:00");
+ dl->codecs[0].dai_name = devm_kasprintf(dev, GFP_KERNEL, "ssm4567-hifi");
+ dl->codecs[1].name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT343B:01");
+ dl->codecs[1].dai_name = devm_kasprintf(dev, GFP_KERNEL, "ssm4567-hifi");
+ if (!dl->cpus->dai_name || !dl->codecs[0].name || !dl->codecs[0].dai_name ||
+ !dl->codecs[1].name || !dl->codecs[1].dai_name)
+ return -ENOMEM;
+
+ dl->num_cpus = 1;
+ dl->num_codecs = 2;
+ dl->platforms = platform;
+ dl->num_platforms = 1;
+ dl->id = 0;
+ dl->dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_CBS_CFS;
+ dl->init = avs_ssm4567_codec_init;
+ dl->be_hw_params_fixup = avs_ssm4567_be_fixup;
+ dl->nonatomic = 1;
+ dl->no_pcm = 1;
+ dl->dpcm_capture = 1;
+ dl->dpcm_playback = 1;
+ dl->ignore_pmdown_time = 1;
+
+ *dai_link = dl;
+
+ return 0;
+}
+
+static int avs_create_dapm_routes(struct device *dev, int ssp_port,
+ struct snd_soc_dapm_route **routes, int *num_routes)
+{
+ struct snd_soc_dapm_route *dr;
+ const int num_base = ARRAY_SIZE(card_base_routes);
+ const int num_dr = num_base + 4;
+ int idx;
+
+ dr = devm_kcalloc(dev, num_dr, sizeof(*dr), GFP_KERNEL);
+ if (!dr)
+ return -ENOMEM;
+
+ memcpy(dr, card_base_routes, num_base * sizeof(*dr));
+
+ idx = num_base;
+ dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "Left Playback");
+ dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Tx", ssp_port);
+ if (!dr[idx].sink || !dr[idx].source)
+ return -ENOMEM;
+
+ idx++;
+ dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "Right Playback");
+ dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Tx", ssp_port);
+ if (!dr[idx].sink || !dr[idx].source)
+ return -ENOMEM;
+
+ idx++;
+ dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Rx", ssp_port);
+ dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "Left Capture Sense");
+ if (!dr[idx].sink || !dr[idx].source)
+ return -ENOMEM;
+
+ idx++;
+ dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Rx", ssp_port);
+ dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "Right Capture Sense");
+ if (!dr[idx].sink || !dr[idx].source)
+ return -ENOMEM;
+
+ *routes = dr;
+ *num_routes = num_dr;
+
+ return 0;
+}
+
+static int avs_ssm4567_probe(struct platform_device *pdev)
+{
+ struct snd_soc_dapm_route *routes;
+ struct snd_soc_dai_link *dai_link;
+ struct snd_soc_acpi_mach *mach;
+ struct snd_soc_card *card;
+ struct device *dev = &pdev->dev;
+ const char *pname;
+ int num_routes, ssp_port, ret;
+
+ mach = dev_get_platdata(dev);
+ pname = mach->mach_params.platform;
+ ssp_port = __ffs(mach->mach_params.i2s_link_mask);
+
+ ret = avs_create_dai_link(dev, pname, ssp_port, &dai_link);
+ if (ret) {
+ dev_err(dev, "Failed to create dai link: %d", ret);
+ return ret;
+ }
+
+ ret = avs_create_dapm_routes(dev, ssp_port, &routes, &num_routes);
+ if (ret) {
+ dev_err(dev, "Failed to create dapm routes: %d", ret);
+ return ret;
+ }
+
+ card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
+ if (!card)
+ return -ENOMEM;
+
+ card->name = "avs_ssm4567-adi";
+ card->dev = dev;
+ card->owner = THIS_MODULE;
+ card->dai_link = dai_link;
+ card->num_links = 1;
+ card->codec_conf = card_codec_conf;
+ card->num_configs = ARRAY_SIZE(card_codec_conf);
+ card->controls = card_controls;
+ card->num_controls = ARRAY_SIZE(card_controls);
+ card->dapm_widgets = card_widgets;
+ card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
+ card->dapm_routes = routes;
+ card->num_dapm_routes = num_routes;
+ card->fully_routed = true;
+ card->disable_route_checks = true;
+
+ ret = snd_soc_fixup_dai_links_platform_name(card, pname);
+ if (ret)
+ return ret;
+
+ return devm_snd_soc_register_card(dev, card);
+}
+
+static struct platform_driver avs_ssm4567_driver = {
+ .probe = avs_ssm4567_probe,
+ .driver = {
+ .name = "avs_ssm4567",
+ .pm = &snd_soc_pm_ops,
+ },
+};
+
+module_platform_driver(avs_ssm4567_driver)
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:avs_ssm4567");
projects / platform / kernel / linux-rpi.git / commitdiff