ALSA: hda: Add TAS5825 support

Add TAS5825 support in TI's HDA driver.
TAS5825 is an on-chip DSP, but no calibration is required,
and no global address support smart amplifier devices.

Signed-off-by: Baojun Xu <[e-mail]>
Acked-by: Mark Brown <[e-mail]>
Signed-off-by: Takashi Iwai <[e-mail]>
Link: https://patch.msgid.link/[e-mail]

include/sound/tas2781-dsp.h

···
 #define PPC3_VERSION_TAS2781_BASIC_MIN		0x14600
 #define PPC3_VERSION_TAS2781_ALPHA_MIN		0x4a00
 #define PPC3_VERSION_TAS2781_BETA_MIN		0x19400
+#define PPC3_VERSION_TAS5825_BASE		0x114200
 #define TASDEVICE_DEVICE_SUM			8
 #define TASDEVICE_CONFIG_SUM			64
 
···
 	TASDEVICE_DSP_TAS_2781_DUAL_MONO,
 	TASDEVICE_DSP_TAS_2781_21,
 	TASDEVICE_DSP_TAS_2781_QUAD,
+	TASDEVICE_DSP_TAS_5825_MONO,
+	TASDEVICE_DSP_TAS_5825_DUAL,
 	TASDEVICE_DSP_TAS_MAX_DEVICE
 };
 

include/sound/tas2781.h

···
 #define TASDEVICE_REG(book, page, reg)	(((book * 256 * 128) + \
 					(page * 128)) + reg)
 
-/* Software Reset */
+/* Software Reset, compatble with new device (TAS5825). */
 #define TASDEVICE_REG_SWRESET		TASDEVICE_REG(0x0, 0x0, 0x01)
-#define TASDEVICE_REG_SWRESET_RESET	BIT(0)
+#define TASDEVICE_REG_SWRESET_RESET	(BIT(0) | BIT(4))
 
 /* Checksum */
 #define TASDEVICE_CHECKSUM_REG		TASDEVICE_REG(0x0, 0x0, 0x7e)

include/sound/tas5825-tlv.h

···
+/* SPDX-License-Identifier: GPL-2.0 */
+//
+// ALSA SoC Texas Instruments TAS5825 Audio Smart Amplifier
+//
+// Copyright (C) 2025 Texas Instruments Incorporated
+// https://www.ti.com
+//
+// The TAS5825 hda driver implements for one or two TAS5825 chips.
+//
+// Author: Baojun Xu <[e-mail]>
+//
+
+#ifndef __TAS5825_TLV_H__
+#define __TAS5825_TLV_H__
+
+#define TAS5825_DVC_LEVEL		TASDEVICE_REG(0x0, 0x0, 0x4c)
+#define TAS5825_AMP_LEVEL		TASDEVICE_REG(0x0, 0x0, 0x54)
+
+static const __maybe_unused DECLARE_TLV_DB_SCALE(
+		tas5825_dvc_tlv, -10300, 50, 0);
+static const __maybe_unused DECLARE_TLV_DB_SCALE(
+		tas5825_amp_tlv, -1550, 50, 0);
+
+#endif

sound/hda/codecs/side-codecs/tas2781_hda_i2c.c

···
 #include <sound/tlv.h>
 #include <sound/tas2770-tlv.h>
 #include <sound/tas2781-tlv.h>
+#include <sound/tas5825-tlv.h>
 
 #include "hda_local.h"
 #include "hda_auto_parser.h"
···
 	HDA_TAS2563,
 	HDA_TAS2770,
 	HDA_TAS2781,
+	HDA_TAS5825,
 	HDA_OTHERS
 };
 
···
 	ACARD_SINGLE_RANGE_EXT_TLV("Speaker Analog Gain", TAS2781_AMP_LEVEL,
 		1, 0, 20, 0, tas2781_amp_getvol,
 		tas2781_amp_putvol, amp_vol_tlv),
+	ACARD_SINGLE_BOOL_EXT("Speaker Force Firmware Load", 0,
+		tas2781_force_fwload_get, tas2781_force_fwload_put),
+};
+
+static const struct snd_kcontrol_new tas5825_snd_controls[] = {
+	ACARD_SINGLE_RANGE_EXT_TLV("Speaker Analog Volume", TAS5825_AMP_LEVEL,
+		0, 0, 31, 1, tas2781_amp_getvol,
+		tas2781_amp_putvol, tas5825_amp_tlv),
+	ACARD_SINGLE_RANGE_EXT_TLV("Speaker Digital Volume", TAS5825_DVC_LEVEL,
+		0, 0, 254, 1, tas2781_amp_getvol,
+		tas2781_amp_putvol, tas5825_dvc_tlv),
 	ACARD_SINGLE_BOOL_EXT("Speaker Force Firmware Load", 0,
 		tas2781_force_fwload_get, tas2781_force_fwload_put),
 };
···
 				     ARRAY_SIZE(tas2781_snd_controls));
 		tasdevice_dspfw_init(context);
 		break;
+	case HDA_TAS5825:
+		tasdev_add_kcontrols(tas_priv, hda_priv->snd_ctls, codec,
+				     &tas5825_snd_controls[0],
+				     ARRAY_SIZE(tas5825_snd_controls));
+		tasdevice_dspfw_init(context);
+		break;
 	case HDA_TAS2563:
 		tasdevice_dspfw_init(context);
 		break;
···
 	} else if (strstarts(dev_name(&clt->dev),
 			     "i2c-TXNW2781:00-tas2781-hda.0")) {
 		device_name = "TXNW2781";
+		hda_priv->hda_chip_id = HDA_TAS2781;
 		hda_priv->save_calibration = tas2781_save_calibration;
 		tas_hda->priv->global_addr = TAS2781_GLOBAL_ADDR;
 	} else if (strstr(dev_name(&clt->dev), "INT8866")) {
···
 		hda_priv->hda_chip_id = HDA_TAS2563;
 		hda_priv->save_calibration = tas2563_save_calibration;
 		tas_hda->priv->global_addr = TAS2563_GLOBAL_ADDR;
+	} else if (strstarts(dev_name(&clt->dev), "i2c-TXNW5825")) {
+		/*
+		 * TAS5825, integrated on-chip DSP without
+		 * global I2C address and calibration supported.
+		 */
+		device_name = "TXNW5825";
+		hda_priv->hda_chip_id = HDA_TAS5825;
 	} else {
 		return -ENODEV;
 	}
···
 	{"TIAS2781", 0 },
 	{"TXNW2770", 0 },
 	{"TXNW2781", 0 },
+	{"TXNW5825", 0 },
 	{}
 };
 MODULE_DEVICE_TABLE(acpi, tas2781_acpi_hda_match);

sound/soc/codecs/tas2781-fmwlib.c

···
 };
 
 static const char deviceNumber[TASDEVICE_DSP_TAS_MAX_DEVICE] = {
-	1, 2, 1, 2, 1, 1, 0, 2, 4, 3, 1, 2, 3, 4
+	1, 2, 1, 2, 1, 1, 0, 2, 4, 3, 1, 2, 3, 4, 1, 2
 };
 
 /* fixed m68k compiling issue: mapping table can save code field */
···
 	}
 
 out:
+	return offset;
+}
+
+static int fw_parse_tas5825_program_data_kernel(
+	struct tasdevice_priv *tas_priv, struct tasdevice_fw *tas_fmw,
+	const struct firmware *fmw, int offset)
+{
+	struct tasdevice_prog *program;
+	unsigned int i;
+
+	for (i = 0; i < tas_fmw->nr_programs; i++) {
+		program = &(tas_fmw->programs[i]);
+		if (offset + 72 > fmw->size) {
+			dev_err(tas_priv->dev, "%s: mpName error\n", __func__);
+			return -EINVAL;
+		}
+		/* Skip 65 unused byts*/
+		offset += 65;
+		offset = fw_parse_data_kernel(tas_fmw, &(program->dev_data),
+			fmw, offset);
+		if (offset < 0)
+			return offset;
+	}
+
+	return offset;
+}
+
+static int fw_parse_tas5825_configuration_data_kernel(
+	struct tasdevice_priv *tas_priv,
+	struct tasdevice_fw *tas_fmw, const struct firmware *fmw, int offset)
+{
+	const unsigned char *data = fmw->data;
+	struct tasdevice_config *config;
+	unsigned int i;
+
+	for (i = 0; i < tas_fmw->nr_configurations; i++) {
+		config = &(tas_fmw->configs[i]);
+		if (offset + 80 > fmw->size) {
+			dev_err(tas_priv->dev, "%s: mpName error\n", __func__);
+			return -EINVAL;
+		}
+		memcpy(config->name, &data[offset], 64);
+		/* Skip extra 8 bytes*/
+		offset += 72;
+		offset = fw_parse_data_kernel(tas_fmw, &(config->dev_data),
+			fmw, offset);
+		if (offset < 0)
+			return offset;
+	}
+
 	return offset;
 }
 
···
 		else
 			tas_priv->dspbin_typ = TASDEV_ALPHA;
 	}
-	if (tas_priv->dspbin_typ != TASDEV_BASIC)
+	if ((tas_priv->dspbin_typ != TASDEV_BASIC) &&
+		(ppcver < PPC3_VERSION_TAS5825_BASE))
 		tas_priv->fw_parse_fct_param_address =
 			fw_parse_fct_param_address;
 }
···
 	int rc = 0;
 
 	if (drv_ver == 0x100) {
-		if (ppcver >= PPC3_VERSION_BASE) {
+		if (ppcver >= PPC3_VERSION_TAS5825_BASE) {
+			tas_priv->fw_parse_variable_header =
+				fw_parse_variable_header_kernel;
+			tas_priv->fw_parse_program_data =
+				fw_parse_tas5825_program_data_kernel;
+			tas_priv->fw_parse_configuration_data =
+				fw_parse_tas5825_configuration_data_kernel;
+			tas_priv->tasdevice_load_block =
+				tasdevice_load_block_kernel;
+			dspbin_type_check(tas_priv, ppcver);
+		} else if (ppcver >= PPC3_VERSION_BASE) {
 			tas_priv->fw_parse_variable_header =
 				fw_parse_variable_header_kernel;
 			tas_priv->fw_parse_program_data =