Re: [PATCH v8] ASoc: tas2783: Add tas2783 codec driver

Hi Shenghao,

On Mon, 2024-02-19 at 10:21 +0800, Shenghao Ding wrote:

The tas2783 is a smart audio amplifier with integrated MIPI SoundWire interface (Version 1.2.1 compliant), I2C, and I2S/TDM interfaces designed for portable applications. An on-chip DSP supports Texas Instruments SmartAmp speaker protection algorithm. The integrated speaker voltage and current sense provides for real-time monitoring of lodspeakers.

The ASoC component provides the majority of the functionality of the device, all the audio functions.

Signed-off-by: Shenghao Ding shenghao-ding@ti.com

---

Change in v8:

• simplify tasdevice_set_sdw_stream
• fixed some Linux coding style
• fixed the spelling mistakes
• Select left/right channel based on unique id
• a longer description has been added
• remove unused crc8 in KCONFIG
• Invert of RE here means reciprocal of RE
• correct indentation
• correct the wrong pow calibrated register
• correct comment on RESET register
• fixed usually lines don't end with an open parenthesis
• fixed tasdevice_sdw_shutdown
• use defines for function, entity, etc. for readable
• remove unnecessary codec_lock in component_probe()
• remove struct sdw_stream_data
• remove unused macro definitions
• use BIT(2) and BIT(1) instead of 0x2 and 0x1
• implement pm_runtime
• reg_start is u8, reg_start + i only adds i byte, it should be reg_start + i * 4, because the calibration values
• fixed total_sz in tas2783_calibration
• add a define for TASDEVICE_REG(0, 0, 0x0a)
• rework macro style in header file
• Add select CRC32
• rewrite the mute and the return value handling
• Add comments on bin file
• Add link_id into the fw name to distinguish the same sdw id on different sdw id.
• remove unnecessary mutex_lock
• use set_active() in tasdevice_io_init and move all other parts in the probe.
• move pm_runtime_get_noresume to the probe
• fix the return value of putvol function
• add put_noidle in tasdevice_sdw_remove
• remove unused header file(of.h)
• correct the style of the multi-line comment
• Set the readable registers in tas2783_readable_register for debugfs
• Use new PM macros
• Use default put and get inline SOC_SINGLE_RANGE_TLV and SOC_SINGLE_SX_TLV
• Use respective %pt to log the calibrated time
• Remove unnecessary struct tm
• Add trailing comma tasdevice_dapm_widgets and tasdevice_audio_map
• Rewrite the return value handling in tasdevice_sdw_probe
• use dev_num instead of id.unique_id
• rework the log

---

sound/soc/codecs/Kconfig | 16 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/tas2783-sdw.c | 844 +++++++++++++++++++++++++++++++++ sound/soc/codecs/tas2783.h | 103 ++++ 4 files changed, 965 insertions(+) create mode 100644 sound/soc/codecs/tas2783-sdw.c create mode 100644 sound/soc/codecs/tas2783.h

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 59f9742e9ff4..6ba3fd0c0811 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -247,6 +247,7 @@ config SND_SOC_ALL_CODECS imply SND_SOC_TAS2781_COMLIB imply SND_SOC_TAS2781_FMWLIB imply SND_SOC_TAS2781_I2C

• imply SND_SOC_TAS2783 imply SND_SOC_TAS5086 imply SND_SOC_TAS571X imply SND_SOC_TAS5720

@@ -1847,6 +1848,21 @@ config SND_SOC_TAS2781_I2C algo coefficient setting, for one, two or even multiple TAS2781 chips.

+config SND_SOC_TAS2783

• tristate "Texas Instruments TAS2783 speaker amplifier (sdw)"
• depends on SOUNDWIRE
• depends on EFI
• select REGMAP
• select REGMAP_SOUNDWIRE
• select CRC32
• select CRC32_SARWATE
• help

•  Enable support for Texas Instruments TAS2783 Smart Amplifier
  

•  Digital input mono Class-D and DSP-inside audio power amplifiers.
  

•  TAS2783 supports the MIPI SoundWire v1.2 compatible interface
  

•  for audio and control data. At the end of calibrated data appends
  

•  the crc data with crc32_sarwate for error detection.
  

config SND_SOC_TAS5086 tristate "Texas Instruments TAS5086 speaker amplifier" depends on I2C diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile index f53baa2b9565..6afceb126ae3 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -284,6 +284,7 @@ snd-soc-tas2770-objs := tas2770.o snd-soc-tas2781-comlib-objs := tas2781-comlib.o snd-soc-tas2781-fmwlib-objs := tas2781-fmwlib.o snd-soc-tas2781-i2c-objs := tas2781-i2c.o +snd-soc-tas2783-objs := tas2783-sdw.o snd-soc-tfa9879-objs := tfa9879.o snd-soc-tfa989x-objs := tfa989x.o snd-soc-tlv320adc3xxx-objs := tlv320adc3xxx.o @@ -664,6 +665,7 @@ obj-$(CONFIG_SND_SOC_TAS2780) += snd-soc-tas2780.o obj-$(CONFIG_SND_SOC_TAS2781_COMLIB) += snd-soc-tas2781-comlib.o obj-$(CONFIG_SND_SOC_TAS2781_FMWLIB) += snd-soc-tas2781-fmwlib.o obj-$(CONFIG_SND_SOC_TAS2781_I2C) += snd-soc-tas2781-i2c.o +obj-$(CONFIG_SND_SOC_TAS2783) += snd-soc-tas2783.o obj-$(CONFIG_SND_SOC_TAS5086) += snd-soc-tas5086.o obj-$(CONFIG_SND_SOC_TAS571X) += snd-soc-tas571x.o obj-$(CONFIG_SND_SOC_TAS5720) += snd-soc-tas5720.o diff --git a/sound/soc/codecs/tas2783-sdw.c b/sound/soc/codecs/tas2783-sdw.c new file mode 100644 index 000000000000..ebb7102828c5 --- /dev/null +++ b/sound/soc/codecs/tas2783-sdw.c @@ -0,0 +1,844 @@ +// SPDX-License-Identifier: GPL-2.0 +// +// ALSA SoC Texas Instruments TAS2783 Audio Smart Amplifier +// +// Copyright (C) 2023 - 2024 Texas Instruments Incorporated +// https://www.ti.com +// +// Author: Baojun Xu baojun.xu@ti.com +// Kevin Lu kevin-lu@ti.com +// Shenghao Ding shenghao-ding@ti.com +//

+#include <asm/unaligned.h> +#include <linux/acpi.h> +#include <linux/crc32.h> +#include <linux/efi.h> +#include <linux/err.h> +#include <linux/firmware.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/pm.h> +#include <linux/pm_runtime.h> +#include <linux/regmap.h> +#include <linux/soundwire/sdw.h> +#include <linux/soundwire/sdw_registers.h> +#include <linux/soundwire/sdw_type.h> +#include <sound/pcm_params.h> +#include <sound/sdw.h> +#include <sound/soc.h> +#include <sound/tlv.h>

+#include <sound/tas2781-tlv.h> +#include "tas2783.h"

+static const unsigned int tas2783_cali_reg[] = {

• TAS2783_CALIBRATION_RE, /* Resistance */
• TAS2783_CALIBRATION_RE_LOW, /* Low limitation of RE */
• TAS2783_CALIBRATION_INV_RE, /* Reciprocal of RE */
• TAS2783_CALIBRATION_POW, /* RMS Power */
• TAS2783_CALIBRATION_TLIMIT /* Temperature limitation */

+};

+static const struct reg_default tas2783_reg_defaults[] = {

• /* Default values for ROM mode. Activated. */
• { 0x8002, 0x1a }, /* AMP inactive. */
• { 0x8097, 0xc8 },
• { 0x80b5, 0x74 },
• { 0x8099, 0x20 },
• { 0xfe8d, 0x0d },
• { 0xfebe, 0x4a },
• { 0x8230, 0x00 },
• { 0x8231, 0x00 },
• { 0x8232, 0x00 },
• { 0x8233, 0x01 },
• { 0x8418, 0x00 }, /* Set volume to 0 dB. */
• { 0x8419, 0x00 },
• { 0x841a, 0x00 },
• { 0x841b, 0x00 },
• { 0x8428, 0x40 }, /* Unmute channel */
• { 0x8429, 0x00 },
• { 0x842a, 0x00 },
• { 0x842b, 0x00 },
• { 0x8548, 0x00 }, /* Set volume to 0 dB. */
• { 0x8549, 0x00 },
• { 0x854a, 0x00 },
• { 0x854b, 0x00 },
• { 0x8558, 0x40 }, /* Unmute channel */
• { 0x8559, 0x00 },
• { 0x855a, 0x00 },
• { 0x855b, 0x00 },
• { 0x800a, 0x3a }, /* Enable both channel */
• { 0x800e, 0x44 },
• { 0x800f, 0x40 },
• { 0x805c, 0x99 },
• { SDW_SDCA_CTL(TAS2783_FUNC_TYPE_SMART_AMP, TAS2783_SDCA_ENT_FU21,

• TAS2783_SDCA_CTL_FU_MUTE, 0), 0 },
  

• { SDW_SDCA_CTL(TAS2783_FUNC_TYPE_SMART_AMP, TAS2783_SDCA_ENT_FU21,

• TAS2783_SDCA_CTL_FU_VOLUME, 0), 0 },
  

• { SDW_SDCA_CTL(TAS2783_FUNC_TYPE_SMART_AMP, TAS2783_SDCA_ENT_FU23,

• TAS2783_SDCA_CTL_FU_MUTE, 0), 0 },
  

+};

+static bool tas2783_readable_register(struct device *dev,

• unsigned int reg)

+{

• switch (reg) {
• case 0x8000 ... 0x807F: /* Page 0 */

• return true;
  

• default:

• return false;
  

• }

+}

+static bool tas2783_volatile_register(struct device *dev,

• unsigned int reg)

+{

• switch (reg) {
• /*

• * Only software reset register was volatiled.
  

• * Bit is self clearing.
  

• * 0b = Don't reset
  

• * 1b = reset
  

• */
  

• case 0x8001:

• return true;
  

• default:

• return false;
  

• }

+}

+static const struct regmap_config tasdevice_regmap = {

• .reg_bits = 32,
• .val_bits = 8,
• .readable_reg = tas2783_readable_register,
• .volatile_reg = tas2783_volatile_register,
• .max_register = 0x44ffffff,
• .reg_defaults = tas2783_reg_defaults,
• .num_reg_defaults = ARRAY_SIZE(tas2783_reg_defaults),
• .cache_type = REGCACHE_RBTREE,
• .use_single_read = true,
• .use_single_write = true,

+};

+static const struct snd_kcontrol_new tas2783_snd_controls[] = {

• SOC_SINGLE_RANGE_TLV("Digital Volume", TAS2783_DVC_LVL,

• 0, 0, 200, 1, dvc_tlv),
  

• SOC_SINGLE_SX_TLV("Amp Gain Volume", TAS2783_AMP_LEVEL,

• 1, 0, 20, amp_vol_tlv),
  

+};

+static void tas2783_apply_calib(struct tasdevice_priv *tas_dev,

• unsigned int *cali_data)

+{

• struct regmap *map = tas_dev->regmap;
• u8 *cali_start;
• u16 dev_num;
• int ret;
• if (!tas_dev->sdw_peripheral) {

• dev_err(tas_dev->dev, "%s: peripheral doesn't exist.\n",
  

• 	__func__);
  

• return;
  

• }
• dev_num = clamp(tas_dev->sdw_peripheral->dev_num, 1, 4) - 1;
• /*

• * The area saving tas2783 calibrated data is specified by its
  

• * dev_num. cali_start is the first address of current tas2783's
  

• * calibrated data.
  

• */
  

• cali_start = (u8 *)(cali_data + dev_num * sizeof(tas2783_cali_reg));
• for (int i = 0; i < ARRAY_SIZE(tas2783_cali_reg); i++) {

• ret = regmap_bulk_write(map, tas2783_cali_reg[i],
  

• 	&cali_start[4 * i], 4);
  

• if (ret) {
  

• 	dev_err(tas_dev->dev, "Cali failed %x:%d\n",
  

• 		tas2783_cali_reg[i], ret);
  

• 	break;
  

• }
  

• }

+}

+/*

• • Load the calibration data, including speaker impedance, f0, etc.
• • Calibration is done by the manufacturer in the factory. The calibration
• • data are used by the algorithm for calculating the speaker temperature,
• • speaker membrane excursion and f0 in real time during playback.
• • The DSP will work with default data values if calibrated data are
• • missing or are invalid.
• • Layout of calibrated Data in UEFI:
• • Calibrated Data of Dev 0 (20 bytes)
• • Calibrated Data of Dev 1 (20 bytes)
• • Calibrated Data of Dev 2 (20 bytes)
• • Calibrated Data of Dev 3 (20 bytes)
• • CRC (4 bytes)
• */

+static void tas2783_calibration(struct tasdevice_priv *tas_dev) +{

• efi_guid_t efi_guid = EFI_GUID(0x1f52d2a1, 0xbb3a, 0x457d, 0xbc,

• 	0x09, 0x43, 0xa3, 0xf4, 0x31, 0x0a, 0x92);
  

• static efi_char16_t efi_name[] = L"CALI_DATA";
• unsigned int attr = 0, crc;
• unsigned int *tmp_val;
• efi_status_t status;
• tas_dev->cali_data.total_sz = 0;
• status = efi.get_variable(efi_name, &efi_guid, &attr,

• &tas_dev->cali_data.total_sz, tas_dev->cali_data.data);
  

• if (status == EFI_BUFFER_TOO_SMALL) {

• status = efi.get_variable(efi_name, &efi_guid, &attr,
  

• 	&tas_dev->cali_data.total_sz,
  

• 	tas_dev->cali_data.data);
  

How do you check if the EFI variable is not longer than the fixed size cali_data.data buffer?

Thanks, Gergo

• dev_dbg(tas_dev->dev, "cali get %lx bytes result:%ld\n",
  

• 	tas_dev->cali_data.total_sz, status);
  

• }
• if (status != 0) {

• /* Failed got calibration data from EFI. */
  

• dev_dbg(tas_dev->dev, "No calibration data in UEFI.");
  

• return;
  

• }
• tmp_val = (unsigned int *)tas_dev->cali_data.data;
• crc = crc32(~0, tas_dev->cali_data.data, 84) ^ ~0;
• if (crc == tmp_val[21]) {

• /* Date and time of when calibration was done. */
  

• tas2783_apply_calib(tas_dev, tmp_val);
  

• dev_dbg(tas_dev->dev, "%ptTs", &tmp_val[20]);
  

• } else {

• dev_dbg(tas_dev->dev, "CRC 0x%08x not match 0x%08x\n",
  

• 	crc, tmp_val[21]);
  

• tas_dev->cali_data.total_sz = 0;
  

• }

+}

+static void tasdevice_dspfw_ready(const struct firmware *fmw,

• void *context)

+{

• struct tasdevice_priv *tas_dev =

• (struct tasdevice_priv *) context;
  

• struct tas2783_firmware_node *p;
• struct regmap *map = tas_dev->regmap;
• unsigned char *buf = NULL;
• int offset = 0, img_sz;
• int ret;
• if (!fmw || !fmw->data) {

• dev_warn(tas_dev->dev,
  

• 	"%s: failed to read %s: work in bypass-dsp mode.\n",
  

• 	__func__, tas_dev->dspfw_binaryname);
  

• return;
  

• }
• buf = (unsigned char *)fmw->data;
• img_sz = get_unaligned_le32(&buf[offset]);
• offset += sizeof(img_sz);
• if (img_sz != fmw->size) {

• dev_warn(tas_dev->dev, "%s: size not matching, %d %u.",
  

• 	__func__, (int)fmw->size, img_sz);
  

• return;
  

• }
• while (offset < img_sz) {

• p = (struct tas2783_firmware_node *)(buf + offset);
  

• if (p->length > 1) {
  

• 	ret = regmap_bulk_write(map, p->download_addr,
  

• 	buf + offset + sizeof(unsigned int) * 5, p->length);
  

• } else {
  

• 	ret = regmap_write(map, p->download_addr,
  

• 		*(buf + offset + sizeof(unsigned int) * 5));
  

• }
  

• if (ret != 0) {
  

• 	dev_dbg(tas_dev->dev,
  

• 		"%s: load FW fail: %d, work in bypass.\n",
  

• 		__func__, ret);
  

• 	return;
  

• }
  

• offset += sizeof(unsigned int) * 5 + p->length;
  

• }
• tas2783_calibration(tas_dev);

+}

+static const struct snd_soc_dapm_widget tasdevice_dapm_widgets[] = {

• SND_SOC_DAPM_AIF_IN("ASI", "ASI Playback", 0, SND_SOC_NOPM, 0, 0),
• SND_SOC_DAPM_AIF_OUT("ASI OUT", "ASI Capture", 0, SND_SOC_NOPM, 0, 0),
• SND_SOC_DAPM_OUTPUT("OUT"),
• SND_SOC_DAPM_INPUT("DMIC"),

+};

+static const struct snd_soc_dapm_route tasdevice_audio_map[] = {

• {"OUT", NULL, "ASI"},
• {"ASI OUT", NULL, "DMIC"},

+};

+static int tasdevice_set_sdw_stream(struct snd_soc_dai *dai,

• void *sdw_stream, int direction)

+{

• snd_soc_dai_dma_data_set(dai, direction, sdw_stream);
• return 0;

+}

+static void tasdevice_sdw_shutdown(struct snd_pcm_substream *substream,

• struct snd_soc_dai *dai)

+{

• snd_soc_dai_set_dma_data(dai, substream, NULL);

+}

+static int tasdevice_sdw_hw_params(struct snd_pcm_substream *substream,

• struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)

+{

• struct snd_soc_component *component = dai->component;
• struct tasdevice_priv *tas_priv =

• snd_soc_component_get_drvdata(component);
  

• struct sdw_stream_config stream_config = {0};
• struct sdw_port_config port_config = {0};
• struct sdw_stream_runtime *sdw_stream;
• int ret;
• dev_dbg(dai->dev, "%s: dai_name %s", __func__, dai->name);
• sdw_stream = snd_soc_dai_get_dma_data(dai, substream);
• if (!sdw_stream)

• return -EINVAL;
  

• if (!tas_priv->sdw_peripheral)

• return -EINVAL;
  

• /* SoundWire specific configuration */
• snd_sdw_params_to_config(substream, params,

• &stream_config, &port_config);
  

• /* port 1 for playback */
• if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)

• port_config.num = 1;
  

• else

• port_config.num = 2;
  

• ret = sdw_stream_add_slave(tas_priv->sdw_peripheral,

• &stream_config, &port_config, 1, sdw_stream);
  

• if (ret) {

• dev_err(dai->dev, "%s: Unable to configure port\n", __func__);
  

• return ret;
  

• }
• dev_dbg(dai->dev, "%s: format: %i rate: %i\n", __func__,

• params_format(params), params_rate(params));
  

• return 0;

+}

+static int tasdevice_sdw_pcm_hw_free(struct snd_pcm_substream *substream,

• struct snd_soc_dai *dai)

+{

• struct snd_soc_component *component = dai->component;
• struct tasdevice_priv *tas_priv =

• snd_soc_component_get_drvdata(component);
  

• struct sdw_stream_runtime *sdw_stream =

• snd_soc_dai_get_dma_data(dai, substream);
  

• if (!tas_priv->sdw_peripheral)

• return -EINVAL;
  

• sdw_stream_remove_slave(tas_priv->sdw_peripheral, sdw_stream);
• return 0;

+}

+static int tasdevice_mute(struct snd_soc_dai *dai, int mute,

• int direction)

+{

• struct snd_soc_component *component = dai->component;
• struct tasdevice_priv *tas_dev =

• snd_soc_component_get_drvdata(component);
  

• struct regmap *map = tas_dev->regmap;
• int ret;
• dev_dbg(tas_dev->dev, "%s: %d.\n", __func__, mute);
• if (mute) {

• if (direction == SNDRV_PCM_STREAM_CAPTURE) {
  

• 	ret = regmap_update_bits(map, TAS2873_REG_PWR_CTRL,
  

• 		TAS2783_REG_AEF_MASK,
  

• 		TAS2783_REG_AEF_INACTIVE);
  

• 	if (ret)
  

• 		dev_err(tas_dev->dev,
  

• 			"%s: Disable AEF failed.\n", __func__);
  

• } else {
  

• 	/* FU23 mute (0x40400108) */
  

• 	ret = regmap_write(map,
  

• 		SDW_SDCA_CTL(TAS2783_FUNC_TYPE_SMART_AMP,
  

• 		TAS2783_SDCA_ENT_FU23,
  

• 		TAS2783_SDCA_CTL_FU_MUTE, 0), 1);
  

• 	if (ret) {
  

• 		dev_err(tas_dev->dev,
  

• 			"%s: FU23 mute failed.\n", __func__);
  

• 		goto out;
  

• 	}
  

• 	/*
  

• 	 * Both playback and echo data will be shutdown in
  

• 	 * playback stream.
  

• 	 */
  

• 	ret = regmap_update_bits(map, TAS2873_REG_PWR_CTRL,
  

• 		TAS2783_REG_PWR_MODE_MASK |
  

• 		TAS2783_REG_AEF_MASK,
  

• 		TAS2783_REG_PWR_MODE_ACTIVE |
  

• 		TAS2783_REG_PWR_MODE_SW_PWD);
  

• 	if (ret) {
  

• 		dev_err(tas_dev->dev,
  

• 			"%s: PWR&AEF shutdown failed.\n",
  

• 			__func__);
  

• 		goto out;
  

• 	}
  

• 	tas_dev->pstream = false;
  

• }
  

• } else {

• /* FU23 Unmute, 0x40400108. */
  

• if (direction == SNDRV_PCM_STREAM_PLAYBACK) {
  

• 	ret = regmap_write(map,
  

• 		SDW_SDCA_CTL(TAS2783_FUNC_TYPE_SMART_AMP,
  

• 		TAS2783_SDCA_ENT_FU23,
  

• 		TAS2783_SDCA_CTL_FU_MUTE, 0), 0);
  

• 	if (ret) {
  

• 		dev_err(tas_dev->dev,
  

• 			"%s: FU23 Unmute failed.\n", __func__);
  

• 		goto out;
  

• 	}
  

• 	ret = regmap_update_bits(map, TAS2873_REG_PWR_CTRL,
  

• 		TAS2783_REG_PWR_MODE_MASK,
  

• 		TAS2783_REG_PWR_MODE_ACTIVE);
  

• 	if (ret) {
  

• 		dev_err(tas_dev->dev,
  

• 			"%s: PWR Unmute failed.\n", __func__);
  

• 		goto out;
  

• 	}
  

• 	tas_dev->pstream = true;
  

• } else {
  

• 	/* Capture stream is the echo ref data for voice.
  

• 	 * Without playback, it can't be active.
  

• 	 */
  

• 	if (tas_dev->pstream == true) {
  

• 		ret = regmap_update_bits(map,
  

• 			TAS2873_REG_PWR_CTRL,
  

• 			TAS2783_REG_AEF_MASK,
  

• 			TAS2783_REG_AEF_ACTIVE);
  

• 		if (ret) {
  

• 			dev_err(tas_dev->dev,
  

• 				"%s: AEF enable failed.\n",
  

• 				__func__);
  

• 			goto out;
  

• 		}
  

• 	} else {
  

• 		dev_err(tas_dev->dev,
  

• 			"%s: No playback, no AEF!", __func__);
  

• 		ret = -EINVAL;
  

• 	}
  

• }
  

• }

+out:

• if (ret)

• dev_err(tas_dev->dev, "Mute or unmute %d failed %d.\n",
  

• 	mute, ret);
  

• return ret;

+}

+static const struct snd_soc_dai_ops tasdevice_dai_ops = {

• .mute_stream = tasdevice_mute,
• .hw_params = tasdevice_sdw_hw_params,
• .hw_free = tasdevice_sdw_pcm_hw_free,
• .set_stream = tasdevice_set_sdw_stream,
• .shutdown = tasdevice_sdw_shutdown,

+};

+static struct snd_soc_dai_driver tasdevice_dai_driver[] = {

• {

• .name = "tas2783-codec",
  

• .id = 0,
  

• .playback = {
  

• 	.stream_name	= "Playback",
  

• 	.channels_min	= 1,
  

• 	.channels_max	= 4,
  

• 	.rates		= TAS2783_DEVICE_RATES,
  

• 	.formats	= TAS2783_DEVICE_FORMATS,
  

• },
  

• .capture = {
  

• 	.stream_name	= "Capture",
  

• 	.channels_min	= 1,
  

• 	.channels_max	= 4,
  

• 	.rates		= TAS2783_DEVICE_RATES,
  

• 	.formats	= TAS2783_DEVICE_FORMATS,
  

• },
  

• .ops = &tasdevice_dai_ops,
  

• .symmetric_rate = 1,
  

• },

+};

+static int tasdevice_comp_probe(struct snd_soc_component *comp) +{

• struct tasdevice_priv *tas_dev = snd_soc_component_get_drvdata(comp);
• acpi_handle handle = ACPI_HANDLE(tas_dev->dev);
• const struct firmware *fw_entry = NULL;
• const char *sub = NULL;
• int ret, value_sdw;
• if (handle) {

• sub = acpi_get_subsystem_id(handle);
  

• if (IS_ERR(sub))
  

• 	sub = NULL;
  

• }
• tas_dev->component = comp;
• /*

• * Each tas2783 in the system has its own dspfw.
  

• */
  

• if (comp->name_prefix) {

• /*
  

•  * name_prefix.bin stores the dsp firmware including speaker
  

•  * protection algorithm, audio acoustic algorithm, speaker
  

•  * characters and algorithm params, it must be copied into
  

•  * firmware folder.
  

•  */
  

• scnprintf(tas_dev->dspfw_binaryname,
  

• 	TAS2783_DSPFW_FILENAME_LEN, "%s-tas2783.bin",
  

• 	comp->name_prefix);
  

• } else {

• /* Compatible with the previous naming rule */
  

• if (sub) {
  

• /*
  

•  * subsystem_id-link_id[0,1,...,N]-dev_num[1,...,4].bin stores
  

•  * the dsp firmware including speaker protection algorithm,
  

•  * audio acoustic algorithm, speaker characters and algorithm
  

•  * params, it must be copied into firmware folder.
  

•  */
  

• 	scnprintf(tas_dev->dspfw_binaryname,
  

• 		TAS2783_DSPFW_FILENAME_LEN,
  

• 		"%s-%d-%d.bin", sub,
  

• 		tas_dev->sdw_peripheral->bus->link_id,
  

• 		tas_dev->sdw_peripheral->dev_num);
  

• } else {
  

• /*
  

•  * tas2783-link_id[0,1,...,N]-dev_num[1,...,4].bin stores
  

•  * the dsp firmware including speaker protection algorithm,
  

•  * audio acoustic algorithm, speaker characters and algorithm
  

•  * params, it must be copied into firmware folder.
  

•  */
  

• 	scnprintf(tas_dev->dspfw_binaryname,
  

• 		TAS2783_DSPFW_FILENAME_LEN,
  

• 		"tas2783-%d-%d.bin",
  

• 		tas_dev->sdw_peripheral->bus->link_id,
  

• 		tas_dev->sdw_peripheral->dev_num);
  

• }
  

• }
• ret = request_firmware(&fw_entry, tas_dev->dspfw_binaryname,

• tas_dev->dev);
  

• if (ret) {

• dev_err(tas_dev->dev,
  

• 	"%s: request_firmware %x open status: %d.\n", __func__,
  

• 	tas_dev->sdw_peripheral->id.unique_id, ret);
  

• goto out;
  

• }
• tasdevice_dspfw_ready(fw_entry, tas_dev);
• /* Select left/right channel based on device number. */
• value_sdw = 0x1a;
• value_sdw |= (tas_dev->sdw_peripheral->dev_num & BIT(0)) << 4;
• dev_dbg(tas_dev->dev, "%s: dev_num = %u", __func__,

• tas_dev->sdw_peripheral->dev_num);
  

• regmap_write(tas_dev->regmap, TAS2783_REG_TDM_RX_CFG, value_sdw);
• if (ret != 0)

• dev_warn(tas_dev->dev, "%s: L/R setting failed: %d.\n",
  

• 	__func__, ret);
  

+out:

• if (fw_entry)

• release_firmware(fw_entry);
  

• return 0;

+}

+static const struct snd_soc_component_driver

• soc_codec_driver_tasdevice = {
• .probe = tasdevice_comp_probe,
• .controls = tas2783_snd_controls,
• .num_controls = ARRAY_SIZE(tas2783_snd_controls),
• .dapm_widgets = tasdevice_dapm_widgets,
• .num_dapm_widgets = ARRAY_SIZE(tasdevice_dapm_widgets),
• .dapm_routes = tasdevice_audio_map,
• .num_dapm_routes = ARRAY_SIZE(tasdevice_audio_map),
• .idle_bias_on = 1,
• .endianness = 1,

+};

+static int tasdevice_init(struct tasdevice_priv *tas_dev) +{

• int ret;
• dev_set_drvdata(tas_dev->dev, tas_dev);
• ret = devm_snd_soc_register_component(tas_dev->dev,

• &soc_codec_driver_tasdevice,
  

• tasdevice_dai_driver, ARRAY_SIZE(tasdevice_dai_driver));
  

• if (ret) {

• dev_err(tas_dev->dev, "%s: codec register error:%d.\n",
  

• 	__func__, ret);
  

• return ret;
  

• }
• /* set autosuspend parameters */
• pm_runtime_set_autosuspend_delay(tas_dev->dev, 3000);
• pm_runtime_use_autosuspend(tas_dev->dev);
• /* make sure the device does not suspend immediately */
• pm_runtime_mark_last_busy(tas_dev->dev);
• pm_runtime_enable(tas_dev->dev);
• return 0;

+}

+static int tasdevice_read_prop(struct sdw_slave *slave) +{

• struct sdw_slave_prop *prop = &slave->prop;
• struct sdw_dpn_prop *dpn;
• unsigned long addr;
• int nval, i, j;
• u32 bit;
• prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;
• prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;
• prop->paging_support = true;
• /* first we need to allocate memory for set bits in port lists */
• prop->source_ports = BIT(2); /* BITMAP: 00000100 */
• prop->sink_ports = BIT(1); /* BITMAP: 00000010 */
• nval = hweight32(prop->source_ports);
• prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,

• sizeof(*prop->src_dpn_prop), GFP_KERNEL);
  

• if (!prop->src_dpn_prop)

• return -ENOMEM;
  

• i = 0;
• dpn = prop->src_dpn_prop;
• addr = prop->source_ports;
• for_each_set_bit(bit, &addr, 32) {

• dpn[i].num = bit;
  

• dpn[i].type = SDW_DPN_FULL;
  

• dpn[i].simple_ch_prep_sm = true;
  

• dpn[i].ch_prep_timeout = 10;
  

• i++;
  

• }
• /* do this again for sink now */
• nval = hweight32(prop->sink_ports);
• prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval,

• sizeof(*prop->sink_dpn_prop), GFP_KERNEL);
  

• if (!prop->sink_dpn_prop)

• return -ENOMEM;
  

• j = 0;
• dpn = prop->sink_dpn_prop;
• addr = prop->sink_ports;
• for_each_set_bit(bit, &addr, 32) {

• dpn[j].num = bit;
  

• dpn[j].type = SDW_DPN_FULL;
  

• dpn[j].simple_ch_prep_sm = true;
  

• dpn[j].ch_prep_timeout = 10;
  

• j++;
  

• }
• /* set the timeout values */
• prop->clk_stop_timeout = 20;
• return 0;

+}

+static int tasdevice_io_init(struct device *dev,

• struct sdw_slave *slave)

+{

• struct tasdevice_priv *tas_priv = dev_get_drvdata(dev);
• int ret;
• regcache_cache_only(tas_priv->regmap, false);
• if (tas_priv->first_hw_init) {

• regcache_cache_bypass(tas_priv->regmap, true);
  

• } else {
• /*

• * PM runtime is only enabled when a Slave reports as Attached
  

• * Update count of parent 'active' children
  

• */
  

• pm_runtime_set_active(&slave->dev);
  

• }
• /* sw reset */
• ret = regmap_write(tas_priv->regmap, TAS2873_REG_SWRESET,

• TAS2873_REG_SWRESET_RESET);
  

• if (ret) {

• dev_err(tas_priv->dev, "Reset failed.\n");
  

• goto out;
  

• }
• if (tas_priv->first_hw_init) {

• regcache_cache_bypass(tas_priv->regmap, false);
  

• regcache_mark_dirty(tas_priv->regmap);
  

• }
• tas_priv->first_hw_init = true;
• tas_priv->hw_init = true;

+out:

• return ret;

+}

+static int tasdevice_update_status(struct sdw_slave *slave,

• enum sdw_slave_status status)

+{

• struct tasdevice_priv *tas_priv = dev_get_drvdata(&slave->dev);
• /* Update the status */
• tas_priv->status = status;
• if (status == SDW_SLAVE_UNATTACHED)

• tas_priv->hw_init = false;
  

• /*

• * Perform initialization only if slave status
  

• * is present and hw_init flag is false
  

• */
  

• if (tas_priv->hw_init || tas_priv->status != SDW_SLAVE_ATTACHED)

• return 0;
  

• /* perform I/O transfers required for Slave initialization */
• return tasdevice_io_init(&slave->dev, slave);

+}

+/*

• • slave_ops: callbacks for get_clock_stop_mode, clock_stop and
• • port_prep are not defined for now
• */

+static const struct sdw_slave_ops tasdevice_sdw_ops = {

• .read_prop = tasdevice_read_prop,
• .update_status = tasdevice_update_status,

+};

+static int tasdevice_sdw_probe(struct sdw_slave *peripheral,

• const struct sdw_device_id *id)

+{

• struct device *dev = &peripheral->dev;
• struct tasdevice_priv *tas_dev;
• tas_dev = devm_kzalloc(dev, sizeof(*tas_dev), GFP_KERNEL);
• if (!tas_dev)

• return -ENOMEM;
  

• tas_dev->dev = dev;
• tas_dev->chip_id = id->driver_data;
• tas_dev->sdw_peripheral = peripheral;
• /*

• * Mark hw_init to false
  

• * HW init will be performed when device reports present
  

• */
  

• tas_dev->hw_init = false;
• tas_dev->first_hw_init = false;
• dev_set_drvdata(dev, tas_dev);
• tas_dev->regmap = devm_regmap_init_sdw(peripheral, &tasdevice_regmap);
• if (IS_ERR(tas_dev->regmap))

• return dev_err_probe(dev, PTR_ERR(tas_dev->regmap),
  

• 	"Failed devm_regmap_init_sdw.");
  

• return tasdevice_init(tas_dev);

+}

+static int tasdevice_sdw_remove(struct sdw_slave *peripheral) +{

• struct tasdevice_priv *tas_dev = dev_get_drvdata(&peripheral->dev);
• if (tas_dev->first_hw_init)

• pm_runtime_disable(tas_dev->dev);
  

• return 0;

+}

+static const struct sdw_device_id tasdevice_sdw_id[] = {

• SDW_SLAVE_ENTRY(0x0102, 0x0000, 0),
• {}

+}; +MODULE_DEVICE_TABLE(sdw, tasdevice_sdw_id);

+static int __maybe_unused tas2783_sdca_dev_suspend(struct device *dev) +{

• struct tasdevice_priv *tas_priv = dev_get_drvdata(dev);
• if (!tas_priv->hw_init)

• return 0;
  

• regcache_cache_only(tas_priv->regmap, true);
• return 0;

+}

+#define TAS2783_PROBE_TIMEOUT_MS 5000

+static int __maybe_unused tas2783_sdca_dev_resume(struct device *dev) +{

• struct sdw_slave *slave = dev_to_sdw_dev(dev);
• struct tasdevice_priv *tas_priv = dev_get_drvdata(dev);
• unsigned long time;
• if (!tas_priv->first_hw_init)

• return 0;
  

• if (!slave->unattach_request)

• goto regmap_sync;
  

• time = wait_for_completion_timeout(&slave->initialization_complete,

• msecs_to_jiffies(TAS2783_PROBE_TIMEOUT_MS));
  

• if (!time) {

• dev_err(&slave->dev, "Init not complete, timed out\n");
  

• sdw_show_ping_status(slave->bus, true);
  

• return -ETIMEDOUT;
  

• }

+regmap_sync:

• slave->unattach_request = 0;
• regcache_cache_only(tas_priv->regmap, false);
• regcache_sync(tas_priv->regmap);
• return 0;

+}

+static const struct dev_pm_ops tas2783_sdca_pm = {

• SYSTEM_SLEEP_PM_OPS(tas2783_sdca_dev_suspend,

• tas2783_sdca_dev_resume)
  

• RUNTIME_PM_OPS(tas2783_sdca_dev_suspend,

• tas2783_sdca_dev_resume, NULL)
  

+};

+static struct sdw_driver tasdevice_sdw_driver = {

• .driver = {

• .name = "slave-tas2783",
  

• .pm = &tas2783_sdca_pm,
  

• },
• .probe = tasdevice_sdw_probe,
• .remove = tasdevice_sdw_remove,
• .ops = &tasdevice_sdw_ops,
• .id_table = tasdevice_sdw_id,

+};

+module_sdw_driver(tasdevice_sdw_driver);

+MODULE_AUTHOR("Baojun Xu baojun.xu@ti.com"); +MODULE_AUTHOR("Shenghao Ding shenghao-ding@ti.com"); +MODULE_DESCRIPTION("ASoC TAS2783 SoundWire Driver"); +MODULE_LICENSE("GPL"); diff --git a/sound/soc/codecs/tas2783.h b/sound/soc/codecs/tas2783.h new file mode 100644 index 000000000000..41bdce1964ff --- /dev/null +++ b/sound/soc/codecs/tas2783.h @@ -0,0 +1,103 @@ +/* SPDX-License-Identifier: GPL-2.0

• • ALSA SoC Texas Instruments TAS2783 Audio Smart Amplifier
• • Copyright (C) 2023 - 2024 Texas Instruments Incorporated
• • https://www.ti.com
• • Author: Baojun Xu baojun.xu@ti.com
• • Shenghao Ding shenghao-ding@ti.com
• */

+#ifndef __TAS2783_H__ +#define __TAS2783_H__

+#define TAS2783_DEVICE_RATES (SNDRV_PCM_RATE_44100 | \

• 			SNDRV_PCM_RATE_48000 | \
  

• 			SNDRV_PCM_RATE_96000 | \
  

• 			SNDRV_PCM_RATE_88200)
  

+#define TAS2783_DEVICE_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \

• 			SNDRV_PCM_FMTBIT_S24_LE | \
  

• 			SNDRV_PCM_FMTBIT_S32_LE)
  

+/* BOOK, PAGE Control Register */ +#define TASDEVICE_REG(book, page, reg) ((book * 256 * 256) + 0x8000 + \

• 			(page * 128) + reg)
  

+/*Software Reset */ +#define TAS2873_REG_SWRESET TASDEVICE_REG(0x0, 0x00, 0x01) +#define TAS2873_REG_SWRESET_MASK BIT(0) +#define TAS2873_REG_SWRESET_RESET BIT(0)

+#define TAS2873_REG_PWR_CTRL TASDEVICE_REG(0x0, 0x00, 0x02) +#define TAS2783_REG_AEF_MASK GENMASK(4, 3) +#define TAS2783_REG_AEF_ACTIVE 0 +#define TAS2783_REG_AEF_INACTIVE GENMASK(4, 3) +#define TAS2783_REG_PWR_MODE_MASK GENMASK(2, 0) +#define TAS2783_REG_PWR_MODE_ACTIVE 0 +#define TAS2783_REG_PWR_MODE_SW_PWD BIT(1)

+#define TAS2783_REG_TDM_RX_CFG TASDEVICE_REG(0x0, 0x00, 0x0a)

+/* Volume control */ +#define TAS2783_DVC_LVL TASDEVICE_REG(0x0, 0x00, 0x1a) +#define TAS2783_AMP_LEVEL TASDEVICE_REG(0x0, 0x00, 0x03) +#define TAS2783_AMP_LEVEL_MASK GENMASK(5, 1)

+/* Calibration data */ +#define TAS2783_CALIBRATION_RE TASDEVICE_REG(0x0, 0x17, 0x74) +#define TAS2783_CALIBRATION_RE_LOW TASDEVICE_REG(0x0, 0x18, 0x14) +#define TAS2783_CALIBRATION_INV_RE TASDEVICE_REG(0x0, 0x18, 0x0c) +#define TAS2783_CALIBRATION_POW TASDEVICE_REG(0x0, 0x13, 0x70) +#define TAS2783_CALIBRATION_TLIMIT TASDEVICE_REG(0x0, 0x18, 0x7c)

+/* TAS2783 SDCA Control - function number */ +#define TAS2783_FUNC_TYPE_SMART_AMP 0x01

+/* TAS2783 SDCA entity */ +#define TAS2783_SDCA_ENT_FU21 0x01 +#define TAS2783_SDCA_ENT_FU23 0x02

+/* TAS2783 SDCA control */ +#define TAS2783_SDCA_CTL_REQ_POWER_STATE 0x01 +#define TAS2783_SDCA_CTL_FU_MUTE 0x01 +#define TAS2783_SDCA_CTL_FU_VOLUME 0x02 +#define TAS2783_SDCA_CTL_UDMPU_CLUSTER 0x10

+#define TAS2783_DEVICE_CHANNEL_LEFT 1 +#define TAS2783_DEVICE_CHANNEL_RIGHT 2 +#define TAS2783_DSPFW_FILENAME_LEN 64

+#define TAS2783_MAX_CALIDATA_SIZE 252

+struct tas2783_firmware_node {

• unsigned int vendor_id;
• unsigned int file_id;
• unsigned int version_id;
• unsigned int length;
• unsigned int download_addr;

+};

+struct calibration_data {

• unsigned long total_sz;
• unsigned char data[TAS2783_MAX_CALIDATA_SIZE];

+};

+struct tasdevice_priv {

• struct snd_soc_component *component;
• struct calibration_data cali_data;
• struct sdw_slave *sdw_peripheral;
• enum sdw_slave_status status;
• struct sdw_bus_params params;
• struct regmap *regmap;
• struct device *dev;
• unsigned char dspfw_binaryname[TAS2783_DSPFW_FILENAME_LEN];
• unsigned char dev_name[32];
• unsigned int chip_id;
• bool pstream;
• bool hw_init;
• bool first_hw_init;

+};

+#endif /*__TAS2783_H__ */