--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright(c) 2024 Advanced Micro Devices, Inc.
+
+/*
+ * acp-sdw-legacy-mach - ASoC legacy Machine driver for AMD SoundWire platforms
+ */
+
+#include <linux/bitmap.h>
+#include <linux/device.h>
+#include <linux/dmi.h>
+#include <linux/module.h>
+#include <linux/soundwire/sdw.h>
+#include <linux/soundwire/sdw_type.h>
+#include <sound/soc.h>
+#include <sound/soc-acpi.h>
+#include "soc_amd_sdw_common.h"
+#include "../../codecs/rt711.h"
+
+static unsigned long soc_sdw_quirk = RT711_JD1;
+static int quirk_override = -1;
+module_param_named(quirk, quirk_override, int, 0444);
+MODULE_PARM_DESC(quirk, "Board-specific quirk override");
+
+static void log_quirks(struct device *dev)
+{
+ if (SOC_JACK_JDSRC(soc_sdw_quirk))
+ dev_dbg(dev, "quirk realtek,jack-detect-source %ld\n",
+ SOC_JACK_JDSRC(soc_sdw_quirk));
+ if (soc_sdw_quirk & ASOC_SDW_ACP_DMIC)
+ dev_dbg(dev, "quirk SOC_SDW_ACP_DMIC enabled\n");
+}
+
+static int soc_sdw_quirk_cb(const struct dmi_system_id *id)
+{
+ soc_sdw_quirk = (unsigned long)id->driver_data;
+ return 1;
+}
+
+static const struct dmi_system_id soc_sdw_quirk_table[] = {
+ {
+ .callback = soc_sdw_quirk_cb,
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "AMD"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Birman-PHX"),
+ },
+ .driver_data = (void *)RT711_JD2,
+ },
+ {}
+};
+
+static const struct snd_soc_ops sdw_ops = {
+ .startup = asoc_sdw_startup,
+ .prepare = asoc_sdw_prepare,
+ .trigger = asoc_sdw_trigger,
+ .hw_params = asoc_sdw_hw_params,
+ .hw_free = asoc_sdw_hw_free,
+ .shutdown = asoc_sdw_shutdown,
+};
+
+static const char * const type_strings[] = {"SimpleJack", "SmartAmp", "SmartMic"};
+
+static int create_sdw_dailink(struct snd_soc_card *card,
+ struct asoc_sdw_dailink *soc_dai,
+ struct snd_soc_dai_link **dai_links,
+ int *be_id, struct snd_soc_codec_conf **codec_conf,
+ struct snd_soc_dai_link_component *sdw_platform_component)
+{
+ struct device *dev = card->dev;
+ struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
+ struct amd_mc_ctx *amd_ctx = (struct amd_mc_ctx *)ctx->private;
+ struct asoc_sdw_endpoint *soc_end;
+ int cpu_pin_id;
+ int stream;
+ int ret;
+
+ list_for_each_entry(soc_end, &soc_dai->endpoints, list) {
+ if (soc_end->name_prefix) {
+ (*codec_conf)->dlc.name = soc_end->codec_name;
+ (*codec_conf)->name_prefix = soc_end->name_prefix;
+ (*codec_conf)++;
+ }
+
+ if (soc_end->include_sidecar) {
+ ret = soc_end->codec_info->add_sidecar(card, dai_links, codec_conf);
+ if (ret)
+ return ret;
+ }
+ }
+
+ for_each_pcm_streams(stream) {
+ static const char * const sdw_stream_name[] = {
+ "SDW%d-PIN%d-PLAYBACK",
+ "SDW%d-PIN%d-CAPTURE",
+ "SDW%d-PIN%d-PLAYBACK-%s",
+ "SDW%d-PIN%d-CAPTURE-%s",
+ };
+ struct snd_soc_dai_link_ch_map *codec_maps;
+ struct snd_soc_dai_link_component *codecs;
+ struct snd_soc_dai_link_component *cpus;
+ int num_cpus = hweight32(soc_dai->link_mask[stream]);
+ int num_codecs = soc_dai->num_devs[stream];
+ int playback, capture;
+ int j = 0;
+ char *name;
+
+ if (!soc_dai->num_devs[stream])
+ continue;
+
+ soc_end = list_first_entry(&soc_dai->endpoints,
+ struct asoc_sdw_endpoint, list);
+
+ *be_id = soc_end->dai_info->dailink[stream];
+ if (*be_id < 0) {
+ dev_err(dev, "Invalid dailink id %d\n", *be_id);
+ return -EINVAL;
+ }
+
+ switch (amd_ctx->acp_rev) {
+ case ACP63_PCI_REV:
+ ret = get_acp63_cpu_pin_id(ffs(soc_end->link_mask - 1),
+ *be_id, &cpu_pin_id, dev);
+ if (ret)
+ return ret;
+ break;
+ default:
+ return -EINVAL;
+ }
+ /* create stream name according to first link id */
+ if (ctx->append_dai_type) {
+ name = devm_kasprintf(dev, GFP_KERNEL,
+ sdw_stream_name[stream + 2],
+ ffs(soc_end->link_mask) - 1,
+ cpu_pin_id,
+ type_strings[soc_end->dai_info->dai_type]);
+ } else {
+ name = devm_kasprintf(dev, GFP_KERNEL,
+ sdw_stream_name[stream],
+ ffs(soc_end->link_mask) - 1,
+ cpu_pin_id);
+ }
+ if (!name)
+ return -ENOMEM;
+
+ cpus = devm_kcalloc(dev, num_cpus, sizeof(*cpus), GFP_KERNEL);
+ if (!cpus)
+ return -ENOMEM;
+
+ codecs = devm_kcalloc(dev, num_codecs, sizeof(*codecs), GFP_KERNEL);
+ if (!codecs)
+ return -ENOMEM;
+
+ codec_maps = devm_kcalloc(dev, num_codecs, sizeof(*codec_maps), GFP_KERNEL);
+ if (!codec_maps)
+ return -ENOMEM;
+
+ list_for_each_entry(soc_end, &soc_dai->endpoints, list) {
+ if (!soc_end->dai_info->direction[stream])
+ continue;
+
+ int link_num = ffs(soc_end->link_mask) - 1;
+
+ cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
+ "SDW%d Pin%d",
+ link_num, cpu_pin_id);
+ dev_dbg(dev, "cpu->dai_name:%s\n", cpus->dai_name);
+ if (!cpus->dai_name)
+ return -ENOMEM;
+
+ codec_maps[j].cpu = 0;
+ codec_maps[j].codec = j;
+
+ codecs[j].name = soc_end->codec_name;
+ codecs[j].dai_name = soc_end->dai_info->dai_name;
+ j++;
+ }
+
+ WARN_ON(j != num_codecs);
+
+ playback = (stream == SNDRV_PCM_STREAM_PLAYBACK);
+ capture = (stream == SNDRV_PCM_STREAM_CAPTURE);
+
+ asoc_sdw_init_dai_link(dev, *dai_links, be_id, name, playback, capture,
+ cpus, num_cpus, sdw_platform_component,
+ 1, codecs, num_codecs,
+ 0, asoc_sdw_rtd_init, &sdw_ops);
+ /*
+ * SoundWire DAILINKs use 'stream' functions and Bank Switch operations
+ * based on wait_for_completion(), tag them as 'nonatomic'.
+ */
+ (*dai_links)->nonatomic = true;
+ (*dai_links)->ch_maps = codec_maps;
+
+ list_for_each_entry(soc_end, &soc_dai->endpoints, list) {
+ if (soc_end->dai_info->init)
+ soc_end->dai_info->init(card, *dai_links,
+ soc_end->codec_info,
+ playback);
+ }
+
+ (*dai_links)++;
+ }
+
+ return 0;
+}
+
+static int create_sdw_dailinks(struct snd_soc_card *card,
+ struct snd_soc_dai_link **dai_links, int *be_id,
+ struct asoc_sdw_dailink *soc_dais,
+ struct snd_soc_codec_conf **codec_conf)
+{
+ struct device *dev = card->dev;
+ struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
+ struct amd_mc_ctx *amd_ctx = (struct amd_mc_ctx *)ctx->private;
+ struct snd_soc_dai_link_component *sdw_platform_component;
+ int ret;
+
+ sdw_platform_component = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link_component),
+ GFP_KERNEL);
+ if (!sdw_platform_component)
+ return -ENOMEM;
+
+ switch (amd_ctx->acp_rev) {
+ case ACP63_PCI_REV:
+ sdw_platform_component->name = "amd_ps_sdw_dma.0";
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* generate DAI links by each sdw link */
+ while (soc_dais->initialised) {
+ int current_be_id;
+
+ ret = create_sdw_dailink(card, soc_dais, dai_links,
+ ¤t_be_id, codec_conf, sdw_platform_component);
+ if (ret)
+ return ret;
+
+ /* Update the be_id to match the highest ID used for SDW link */
+ if (*be_id < current_be_id)
+ *be_id = current_be_id;
+
+ soc_dais++;
+ }
+
+ return 0;
+}
+
+static int create_dmic_dailinks(struct snd_soc_card *card,
+ struct snd_soc_dai_link **dai_links, int *be_id, int no_pcm)
+{
+ struct device *dev = card->dev;
+ struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
+ struct amd_mc_ctx *amd_ctx = (struct amd_mc_ctx *)ctx->private;
+ struct snd_soc_dai_link_component *pdm_cpu;
+ struct snd_soc_dai_link_component *pdm_platform;
+ int ret;
+
+ pdm_cpu = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link_component), GFP_KERNEL);
+ if (!pdm_cpu)
+ return -ENOMEM;
+
+ pdm_platform = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link_component), GFP_KERNEL);
+ if (!pdm_platform)
+ return -ENOMEM;
+
+ switch (amd_ctx->acp_rev) {
+ case ACP63_PCI_REV:
+ pdm_cpu->name = "acp_ps_pdm_dma.0";
+ pdm_platform->name = "acp_ps_pdm_dma.0";
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ *be_id = ACP_DMIC_BE_ID;
+ ret = asoc_sdw_init_simple_dai_link(dev, *dai_links, be_id, "acp-dmic-codec",
+ 0, 1, // DMIC only supports capture
+ pdm_cpu->name, pdm_platform->name, 1,
+ "dmic-codec.0", "dmic-hifi", no_pcm,
+ asoc_sdw_dmic_init, NULL);
+ if (ret)
+ return ret;
+
+ (*dai_links)++;
+
+ return 0;
+}
+
+static int soc_card_dai_links_create(struct snd_soc_card *card)
+{
+ struct device *dev = card->dev;
+ struct snd_soc_acpi_mach *mach = dev_get_platdata(card->dev);
+ int sdw_be_num = 0, dmic_num = 0;
+ struct asoc_sdw_mc_private *ctx = snd_soc_card_get_drvdata(card);
+ struct snd_soc_acpi_mach_params *mach_params = &mach->mach_params;
+ struct asoc_sdw_endpoint *soc_ends __free(kfree) = NULL;
+ struct asoc_sdw_dailink *soc_dais __free(kfree) = NULL;
+ struct snd_soc_codec_conf *codec_conf;
+ struct snd_soc_dai_link *dai_links;
+ int num_devs = 0;
+ int num_ends = 0;
+ int num_links;
+ int be_id = 0;
+ int ret;
+
+ ret = asoc_sdw_count_sdw_endpoints(card, &num_devs, &num_ends);
+ if (ret < 0) {
+ dev_err(dev, "failed to count devices/endpoints: %d\n", ret);
+ return ret;
+ }
+
+ /* One per DAI link, worst case is a DAI link for every endpoint */
+ soc_dais = kcalloc(num_ends, sizeof(*soc_dais), GFP_KERNEL);
+ if (!soc_dais)
+ return -ENOMEM;
+
+ /* One per endpoint, ie. each DAI on each codec/amp */
+ soc_ends = kcalloc(num_ends, sizeof(*soc_ends), GFP_KERNEL);
+ if (!soc_ends)
+ return -ENOMEM;
+
+ ret = asoc_sdw_parse_sdw_endpoints(card, soc_dais, soc_ends, &num_devs);
+ if (ret < 0)
+ return ret;
+
+ sdw_be_num = ret;
+
+ /* enable dmic */
+ if (soc_sdw_quirk & ASOC_SDW_ACP_DMIC || mach_params->dmic_num)
+ dmic_num = 1;
+
+ dev_dbg(dev, "sdw %d, dmic %d", sdw_be_num, dmic_num);
+
+ codec_conf = devm_kcalloc(dev, num_devs, sizeof(*codec_conf), GFP_KERNEL);
+ if (!codec_conf)
+ return -ENOMEM;
+
+ /* allocate BE dailinks */
+ num_links = sdw_be_num + dmic_num;
+ dai_links = devm_kcalloc(dev, num_links, sizeof(*dai_links), GFP_KERNEL);
+ if (!dai_links)
+ return -ENOMEM;
+
+ card->codec_conf = codec_conf;
+ card->num_configs = num_devs;
+ card->dai_link = dai_links;
+ card->num_links = num_links;
+
+ /* SDW */
+ if (sdw_be_num) {
+ ret = create_sdw_dailinks(card, &dai_links, &be_id,
+ soc_dais, &codec_conf);
+ if (ret)
+ return ret;
+ }
+
+ /* dmic */
+ if (dmic_num > 0) {
+ if (ctx->ignore_internal_dmic) {
+ dev_warn(dev, "Ignoring ACP DMIC\n");
+ } else {
+ ret = create_dmic_dailinks(card, &dai_links, &be_id, 0);
+ if (ret)
+ return ret;
+ }
+ }
+
+ WARN_ON(codec_conf != card->codec_conf + card->num_configs);
+ WARN_ON(dai_links != card->dai_link + card->num_links);
+
+ return ret;
+}
+
+static int mc_probe(struct platform_device *pdev)
+{
+ struct snd_soc_acpi_mach *mach = dev_get_platdata(&pdev->dev);
+ struct snd_soc_card *card;
+ struct amd_mc_ctx *amd_ctx;
+ struct asoc_sdw_mc_private *ctx;
+ int amp_num = 0, i;
+ int ret;
+
+ amd_ctx = devm_kzalloc(&pdev->dev, sizeof(*amd_ctx), GFP_KERNEL);
+ if (!amd_ctx)
+ return -ENOMEM;
+
+ amd_ctx->acp_rev = mach->mach_params.subsystem_rev;
+ amd_ctx->max_sdw_links = ACP63_SDW_MAX_LINKS;
+ ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+ ctx->codec_info_list_count = asoc_sdw_get_codec_info_list_count();
+ ctx->private = amd_ctx;
+ card = &ctx->card;
+ card->dev = &pdev->dev;
+ card->name = "amd-soundwire";
+ card->owner = THIS_MODULE;
+ card->late_probe = asoc_sdw_card_late_probe;
+
+ snd_soc_card_set_drvdata(card, ctx);
+
+ dmi_check_system(soc_sdw_quirk_table);
+
+ if (quirk_override != -1) {
+ dev_info(card->dev, "Overriding quirk 0x%lx => 0x%x\n",
+ soc_sdw_quirk, quirk_override);
+ soc_sdw_quirk = quirk_override;
+ }
+
+ log_quirks(card->dev);
+
+ ctx->mc_quirk = soc_sdw_quirk;
+ dev_dbg(card->dev, "legacy quirk 0x%lx\n", ctx->mc_quirk);
+ /* reset amp_num to ensure amp_num++ starts from 0 in each probe */
+ for (i = 0; i < ctx->codec_info_list_count; i++)
+ codec_info_list[i].amp_num = 0;
+
+ ret = soc_card_dai_links_create(card);
+ if (ret < 0)
+ return ret;
+
+ /*
+ * the default amp_num is zero for each codec and
+ * amp_num will only be increased for active amp
+ * codecs on used platform
+ */
+ for (i = 0; i < ctx->codec_info_list_count; i++)
+ amp_num += codec_info_list[i].amp_num;
+
+ card->components = devm_kasprintf(card->dev, GFP_KERNEL,
+ " cfg-amp:%d", amp_num);
+ if (!card->components)
+ return -ENOMEM;
+ if (mach->mach_params.dmic_num) {
+ card->components = devm_kasprintf(card->dev, GFP_KERNEL,
+ "%s mic:dmic cfg-mics:%d",
+ card->components,
+ mach->mach_params.dmic_num);
+ if (!card->components)
+ return -ENOMEM;
+ }
+
+ /* Register the card */
+ ret = devm_snd_soc_register_card(card->dev, card);
+ if (ret) {
+ dev_err_probe(card->dev, ret, "snd_soc_register_card failed %d\n", ret);
+ asoc_sdw_mc_dailink_exit_loop(card);
+ return ret;
+ }
+
+ platform_set_drvdata(pdev, card);
+
+ return ret;
+}
+
+static void mc_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+ asoc_sdw_mc_dailink_exit_loop(card);
+}
+
+static const struct platform_device_id mc_id_table[] = {
+ { "amd_sdw", },
+ {}
+};
+MODULE_DEVICE_TABLE(platform, mc_id_table);
+
+static struct platform_driver soc_sdw_driver = {
+ .driver = {
+ .name = "amd_sdw",
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = mc_probe,
+ .remove = mc_remove,
+ .id_table = mc_id_table,
+};
+
+module_platform_driver(soc_sdw_driver);
+
+MODULE_DESCRIPTION("ASoC AMD SoundWire Legacy Generic Machine driver");
+MODULE_AUTHOR("Vijendar Mukunda <Vijendar.Mukunda@amd.com>");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(SND_SOC_SDW_UTILS);
+MODULE_IMPORT_NS(SND_SOC_AMD_SDW_MACH);
projects / users / dwmw2 / linux.git / commitdiff