1 files changed, 359 insertions, 0 deletions
diff --git a/sound/soc/intel/boards/sof_sdw_rt_amp.c b/sound/soc/intel/boards/sof_sdw_rt_amp.c
new file mode 100644
index 00000000000000..26bf9e0dd3d24c
--- /dev/null
+++ b/sound/soc/intel/boards/sof_sdw_rt_amp.c
@@ -0,0 +1,359 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (c) 2022 Intel Corporation
+
+/*
+ *  sof_sdw_rt_amp - Helpers to handle RT1308/RT1316/RT1318 from generic machine driver
+ */
+
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <sound/control.h>
+#include <sound/soc.h>
+#include <sound/soc-acpi.h>
+#include <sound/soc-dapm.h>
+#include <linux/soundwire/sdw.h>
+#include <linux/soundwire/sdw_type.h>
+#include <linux/dmi.h>
+#include "sof_sdw_common.h"
+#include "sof_sdw_amp_coeff_tables.h"
+#include "../../codecs/rt1308.h"
+
+#define CODEC_NAME_SIZE	7
+
+/* choose a larger value to resolve compatibility issues */
+#define RT_AMP_MAX_BQ_REG RT1316_MAX_BQ_REG
+
+struct rt_amp_platform_data {
+	const unsigned char *bq_params;
+	const unsigned int bq_params_cnt;
+};
+
+static const struct rt_amp_platform_data dell_0a5d_platform_data = {
+	.bq_params = dell_0a5d_bq_params,
+	.bq_params_cnt = ARRAY_SIZE(dell_0a5d_bq_params),
+};
+
+static const struct rt_amp_platform_data dell_0b00_platform_data = {
+	.bq_params = dell_0b00_bq_params,
+	.bq_params_cnt = ARRAY_SIZE(dell_0b00_bq_params),
+};
+
+static const struct dmi_system_id dmi_platform_data[] = {
+	/* CometLake devices */
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0990")
+		},
+		.driver_data = (void *)&dell_0a5d_platform_data,
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "098F")
+		},
+		.driver_data = (void *)&dell_0a5d_platform_data,
+	},
+	/* TigerLake devices */
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0A5D")
+		},
+		.driver_data = (void *)&dell_0a5d_platform_data,
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0A5E")
+		},
+		.driver_data = (void *)&dell_0a5d_platform_data,
+	},
+	/* AlderLake devices */
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0B00")
+		},
+		.driver_data = (void *)&dell_0b00_platform_data,
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0B01")
+		},
+		.driver_data = (void *)&dell_0b00_platform_data,
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0AFF")
+		},
+		.driver_data = (void *)&dell_0b00_platform_data,
+	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
+			DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0AFE")
+		},
+		.driver_data = (void *)&dell_0b00_platform_data,
+	},
+	{},
+};
+
+static int rt_amp_add_device_props(struct device *sdw_dev)
+{
+	struct property_entry props[3] = {};
+	struct fwnode_handle *fwnode;
+	const struct dmi_system_id *dmi_data;
+	const struct rt_amp_platform_data *pdata;
+	unsigned char params[RT_AMP_MAX_BQ_REG];
+	int ret;
+
+	dmi_data = dmi_first_match(dmi_platform_data);
+	if (!dmi_data)
+		return 0;
+
+	pdata = dmi_data->driver_data;
+	memcpy(&params, pdata->bq_params, sizeof(unsigned char) * pdata->bq_params_cnt);
+
+	props[0] = PROPERTY_ENTRY_U8_ARRAY("realtek,bq-params", params);
+	props[1] = PROPERTY_ENTRY_U32("realtek,bq-params-cnt", pdata->bq_params_cnt);
+
+	fwnode = fwnode_create_software_node(props, NULL);
+	if (IS_ERR(fwnode))
+		return PTR_ERR(fwnode);
+
+	ret = device_add_software_node(sdw_dev, to_software_node(fwnode));
+
+	fwnode_handle_put(fwnode);
+
+	return ret;
+}
+
+static const struct snd_kcontrol_new rt_amp_controls[] = {
+	SOC_DAPM_PIN_SWITCH("Speaker"),
+};
+
+static const struct snd_soc_dapm_widget rt_amp_widgets[] = {
+	SND_SOC_DAPM_SPK("Speaker", NULL),
+};
+
+/*
+ * dapm routes for rt1308/rt1316/rt1318 will be registered dynamically
+ * according to the number of rt1308/rt1316/rt1318 used. The first two
+ * entries will be registered for one codec case, and the last two entries
+ * are also registered if two 1308s/1316s/1318s are used.
+ */
+static const struct snd_soc_dapm_route rt1308_map[] = {
+	{ "Speaker", NULL, "rt1308-1 SPOL" },
+	{ "Speaker", NULL, "rt1308-1 SPOR" },
+	{ "Speaker", NULL, "rt1308-2 SPOL" },
+	{ "Speaker", NULL, "rt1308-2 SPOR" },
+};
+
+static const struct snd_soc_dapm_route rt1316_map[] = {
+	{ "Speaker", NULL, "rt1316-1 SPOL" },
+	{ "Speaker", NULL, "rt1316-1 SPOR" },
+	{ "Speaker", NULL, "rt1316-2 SPOL" },
+	{ "Speaker", NULL, "rt1316-2 SPOR" },
+};
+
+static const struct snd_soc_dapm_route rt1318_map[] = {
+	{ "Speaker", NULL, "rt1318-1 SPOL" },
+	{ "Speaker", NULL, "rt1318-1 SPOR" },
+	{ "Speaker", NULL, "rt1318-2 SPOL" },
+	{ "Speaker", NULL, "rt1318-2 SPOR" },
+};
+
+static const struct snd_soc_dapm_route *get_codec_name_and_route(struct snd_soc_pcm_runtime *rtd,
+								 char *codec_name)
+{
+	const char *dai_name;
+
+	dai_name = rtd->dai_link->codecs->dai_name;
+
+	/* get the codec name */
+	snprintf(codec_name, CODEC_NAME_SIZE, "%s", dai_name);
+
+	/* choose the right codec's map  */
+	if (strcmp(codec_name, "rt1308") == 0)
+		return rt1308_map;
+	else if (strcmp(codec_name, "rt1316") == 0)
+		return rt1316_map;
+	else
+		return rt1318_map;
+}
+
+static int first_spk_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_card *card = rtd->card;
+	const struct snd_soc_dapm_route *rt_amp_map;
+	char codec_name[CODEC_NAME_SIZE];
+	int ret;
+
+	rt_amp_map = get_codec_name_and_route(rtd, codec_name);
+
+	card->components = devm_kasprintf(card->dev, GFP_KERNEL,
+					  "%s spk:%s",
+					  card->components, codec_name);
+	if (!card->components)
+		return -ENOMEM;
+
+	ret = snd_soc_add_card_controls(card, rt_amp_controls,
+					ARRAY_SIZE(rt_amp_controls));
+	if (ret) {
+		dev_err(card->dev, "%s controls addition failed: %d\n", codec_name, ret);
+		return ret;
+	}
+
+	ret = snd_soc_dapm_new_controls(&card->dapm, rt_amp_widgets,
+					ARRAY_SIZE(rt_amp_widgets));
+	if (ret) {
+		dev_err(card->dev, "%s widgets addition failed: %d\n", codec_name, ret);
+		return ret;
+	}
+
+	ret = snd_soc_dapm_add_routes(&card->dapm, rt_amp_map, 2);
+	if (ret)
+		dev_err(rtd->dev, "failed to add first SPK map: %d\n", ret);
+
+	return ret;
+}
+
+static int second_spk_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_card *card = rtd->card;
+	const struct snd_soc_dapm_route *rt_amp_map;
+	char codec_name[CODEC_NAME_SIZE];
+	int ret;
+
+	rt_amp_map = get_codec_name_and_route(rtd, codec_name);
+
+	ret = snd_soc_dapm_add_routes(&card->dapm, rt_amp_map + 2, 2);
+	if (ret)
+		dev_err(rtd->dev, "failed to add second SPK map: %d\n", ret);
+
+	return ret;
+}
+
+static int all_spk_init(struct snd_soc_pcm_runtime *rtd)
+{
+	int ret;
+
+	ret = first_spk_init(rtd);
+	if (ret)
+		return ret;
+
+	return second_spk_init(rtd);
+}
+
+static int rt1308_i2s_hw_params(struct snd_pcm_substream *substream,
+				struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_card *card = rtd->card;
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+	int clk_id, clk_freq, pll_out;
+	int err;
+
+	clk_id = RT1308_PLL_S_MCLK;
+	clk_freq = 38400000;
+
+	pll_out = params_rate(params) * 512;
+
+	/* Set rt1308 pll */
+	err = snd_soc_dai_set_pll(codec_dai, 0, clk_id, clk_freq, pll_out);
+	if (err < 0) {
+		dev_err(card->dev, "Failed to set RT1308 PLL: %d\n", err);
+		return err;
+	}
+
+	/* Set rt1308 sysclk */
+	err = snd_soc_dai_set_sysclk(codec_dai, RT1308_FS_SYS_S_PLL, pll_out,
+				     SND_SOC_CLOCK_IN);
+	if (err < 0) {
+		dev_err(card->dev, "Failed to set RT1308 SYSCLK: %d\n", err);
+		return err;
+	}
+
+	return 0;
+}
+
+/* machine stream operations */
+struct snd_soc_ops sof_sdw_rt1308_i2s_ops = {
+	.hw_params = rt1308_i2s_hw_params,
+};
+
+int sof_sdw_rt_amp_exit(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link)
+{
+	struct mc_private *ctx = snd_soc_card_get_drvdata(card);
+
+	if (ctx->amp_dev1) {
+		device_remove_software_node(ctx->amp_dev1);
+		put_device(ctx->amp_dev1);
+	}
+
+	if (ctx->amp_dev2) {
+		device_remove_software_node(ctx->amp_dev2);
+		put_device(ctx->amp_dev2);
+	}
+
+	return 0;
+}
+
+int sof_sdw_rt_amp_init(struct snd_soc_card *card,
+			const struct snd_soc_acpi_link_adr *link,
+			struct snd_soc_dai_link *dai_links,
+			struct sof_sdw_codec_info *info,
+			bool playback)
+{
+	struct mc_private *ctx = snd_soc_card_get_drvdata(card);
+	struct device *sdw_dev1, *sdw_dev2;
+	int ret;
+
+	/* Count amp number and do init on playback link only. */
+	if (!playback)
+		return 0;
+
+	info->amp_num++;
+	if (info->amp_num == 1)
+		dai_links->init = first_spk_init;
+
+	if (info->amp_num == 2) {
+		sdw_dev1 = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[0].name);
+		if (!sdw_dev1)
+			return -EPROBE_DEFER;
+
+		ret = rt_amp_add_device_props(sdw_dev1);
+		if (ret < 0) {
+			put_device(sdw_dev1);
+			return ret;
+		}
+		ctx->amp_dev1 = sdw_dev1;
+
+		sdw_dev2 = bus_find_device_by_name(&sdw_bus_type, NULL, dai_links->codecs[1].name);
+		if (!sdw_dev2)
+			return -EPROBE_DEFER;
+
+		ret = rt_amp_add_device_props(sdw_dev2);
+		if (ret < 0) {
+			put_device(sdw_dev2);
+			return ret;
+		}
+		ctx->amp_dev2 = sdw_dev2;
+
+		/*
+		 * if two amps are in one dai link, the init function
+		 * in this dai link will be first set for the first speaker,
+		 * and it should be reset to initialize all speakers when
+		 * the second speaker is found.
+		 */
+		if (dai_links->init)
+			dai_links->init = all_spk_init;
+		else
+			dai_links->init = second_spk_init;
+	}
+
+	return 0;
+}