[PATCH v5] ASoc: tas2783: Add tas2783 codec driver
From: Shenghao Ding
Date: Sat Jan 13 2024 - 06:50:47 EST
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 loadspeakers.
The ASoC component provides the majority of the functionality of the
device, all the audio functions.
Signed-off-by: Shenghao Ding <shenghao-ding@xxxxxx>
---
Change in v5:
- 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
---
sound/soc/codecs/Kconfig | 13 +
sound/soc/codecs/Makefile | 2 +
sound/soc/codecs/tas2783-sdw.c | 918 +++++++++++++++++++++++++++++++++
sound/soc/codecs/tas2783.h | 97 ++++
4 files changed, 1030 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..7008a23f87f4 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 +1848,18 @@ 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
+ 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.
+
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..b74808dd79cf
--- /dev/null
+++ b/sound/soc/codecs/tas2783-sdw.c
@@ -0,0 +1,918 @@
+// 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@xxxxxx>
+// Kevin Lu <kevin-lu@xxxxxx>
+// Shenghao Ding <shenghao-ding@xxxxxx>
+//
+
+#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/of.h>
+#include <sound/pcm_params.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/soundwire/sdw.h>
+#include <linux/soundwire/sdw_registers.h>
+#include <linux/soundwire/sdw_type.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 ... 0xc000: /* Page 0 ~ 127. */
+ case 0xfe80 ... 0xfeff: /* Page 253. */
+ return true;
+ default:
+ return false;
+ }
+}
+
+static bool tas2783_volatile_register(struct device *dev,
+ unsigned int reg)
+{
+ switch (reg) {
+ case 0x8001:
+ /* Only reset register was volatiled.
+ * Software reset. Bit is self clearing.
+ * 0b = Don't reset
+ * 1b = reset
+ */
+ 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 int tasdevice_clamp(int val, int max, unsigned int invert)
+{
+ /* Keep in valid area, out of range value don't care. */
+ if (val > max)
+ val = max;
+ if (invert)
+ val = max - val;
+ if (val < 0)
+ val = 0;
+ return val;
+}
+
+static int tas2783_digital_getvol(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component
+ = snd_soc_kcontrol_component(kcontrol);
+ struct tasdevice_priv *tas_dev =
+ snd_soc_component_get_drvdata(component);
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ struct regmap *map = tas_dev->regmap;
+ int val = 0, ret;
+
+ if (!ucontrol) {
+ dev_err(tas_dev->dev, "%s, wrong parameter.\n", __func__);
+ return -EINVAL;
+ }
+ /* Read current volume from the device. */
+ ret = regmap_read(map, mc->reg, &val);
+ if (ret < 0) {
+ dev_err(tas_dev->dev, "%s, get digital vol error %x.\n",
+ __func__, ret);
+ return ret;
+ }
+ ucontrol->value.integer.value[0] =
+ tasdevice_clamp(val, mc->max, mc->invert);
+
+ return ret;
+}
+
+static int tas2783_digital_putvol(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component
+ = snd_soc_kcontrol_component(kcontrol);
+ struct tasdevice_priv *tas_dev =
+ snd_soc_component_get_drvdata(component);
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ struct regmap *map = tas_dev->regmap;
+ int val, ret;
+
+ if (!ucontrol) {
+ dev_err(tas_dev->dev, "%s, wrong parameter.\n", __func__);
+ return -EINVAL;
+ }
+ val = tasdevice_clamp(ucontrol->value.integer.value[0],
+ mc->max, mc->invert);
+
+ ret = regmap_write(map, mc->reg, val);
+ if (ret < 0) {
+ dev_dbg(tas_dev->dev, "%s, Put vol %d into %x %x.\n",
+ __func__, val, mc->reg, ret);
+ return ret;
+ }
+
+ return 1;
+}
+
+static int tas2783_amp_getvol(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component
+ = snd_soc_kcontrol_component(kcontrol);
+ struct tasdevice_priv *tas_dev =
+ snd_soc_component_get_drvdata(component);
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ struct regmap *map = tas_dev->regmap;
+ unsigned char mask = 0;
+ int ret, val = 0;
+
+ if (!ucontrol) {
+ dev_err(tas_dev->dev, "%s, wrong parameter.\n", __func__);
+ return -EINVAL;
+ }
+ /* Read current volume from the device. */
+ ret = regmap_read(map, mc->reg, &val);
+ if (ret < 0) {
+ dev_err(tas_dev->dev, "%s get AMP vol from %x with %d.\n",
+ __func__, mc->reg, ret);
+ return ret;
+ }
+
+ mask = (1 << fls(mc->max)) - 1;
+ mask <<= mc->shift;
+ val = (val & mask) >> mc->shift;
+ ucontrol->value.integer.value[0] = tasdevice_clamp(val, mc->max,
+ mc->invert);
+
+ return ret;
+}
+
+static int tas2783_amp_putvol(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component
+ = snd_soc_kcontrol_component(kcontrol);
+ struct tasdevice_priv *tas_dev =
+ snd_soc_component_get_drvdata(component);
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ struct regmap *map = tas_dev->regmap;
+ unsigned char mask;
+ int val, ret;
+
+ if (!ucontrol) {
+ dev_err(tas_dev->dev, "%s, wrong parameter.\n", __func__);
+ return -EINVAL;
+ }
+ mask = (1 << fls(mc->max)) - 1;
+ mask <<= mc->shift;
+ val = tasdevice_clamp(ucontrol->value.integer.value[0], mc->max,
+ mc->invert);
+ ret = regmap_update_bits(map, mc->reg, mask, val << mc->shift);
+ if (ret < 0) {
+ dev_err(tas_dev->dev, "Write @%#x..%#x:%d\n",
+ mc->reg, val, ret);
+ return ret;
+ }
+
+ return 1;
+}
+
+static const struct snd_kcontrol_new tas2783_snd_controls[] = {
+ SOC_SINGLE_RANGE_EXT_TLV("Amp Gain Volume", TAS2783_AMP_LEVEL,
+ 1, 0, 20, 0, tas2783_amp_getvol,
+ tas2783_amp_putvol, amp_vol_tlv),
+ SOC_SINGLE_RANGE_EXT_TLV("Digital Volume", TAS2783_DVC_LVL,
+ 0, 0, 200, 1, tas2783_digital_getvol,
+ tas2783_digital_putvol, dvc_tlv),
+};
+
+static void tas2783_apply_calib(struct tasdevice_priv *tas_dev,
+ unsigned int *cali_data)
+{
+ struct regmap *map = tas_dev->regmap;
+ u8 *reg_start;
+ int ret;
+
+ if (!tas_dev->sdw_peripheral) {
+ dev_err(tas_dev->dev, "%s, slaver doesn't exist.\n",
+ __func__);
+ return;
+ }
+ if ((tas_dev->sdw_peripheral->id.unique_id < TAS2783_ID_MIN) ||
+ (tas_dev->sdw_peripheral->id.unique_id > TAS2783_ID_MAX)) {
+ dev_err(tas_dev->dev, "%s, error unique_id.\n",
+ __func__);
+ return;
+ }
+
+ reg_start = (u8 *)(cali_data + (tas_dev->sdw_peripheral->id.unique_id
+ - TAS2783_ID_MIN) * sizeof(tas2783_cali_reg));
+ for (int i = 0; i < ARRAY_SIZE(tas2783_cali_reg); i++) {
+ ret = regmap_bulk_write(map, tas2783_cali_reg[i],
+ reg_start + i, 4);
+ if (ret != 0) {
+ dev_err(tas_dev->dev, "Cali failed %x:%d\n",
+ tas2783_cali_reg[i], ret);
+ break;
+ }
+ }
+}
+
+/* Update the calibrate data, including speaker impedance, f0, etc, into algo.
+ * Calibrate data is done by manufacturer in the factory. These data are used
+ * by Algo for calucating the speaker temperature, speaker membrance excursion
+ * and f0 in real time during playback.
+ * In case of no or valid calibrated data, dsp will still works with default
+ * calibrated data inside algo.
+ */
+static int 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";
+ struct tm *tm = &tas_dev->tm;
+ unsigned int attr = 0, crc;
+ unsigned int *tmp_val;
+ efi_status_t status;
+
+ tas_dev->cali_data.total_sz = 128;
+
+ 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);
+ 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 0;
+ }
+
+ 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 calibration was done. */
+ time64_to_tm(tmp_val[20], 0, tm);
+ dev_dbg(tas_dev->dev, "%4ld-%2d-%2d, %2d:%2d:%2d\n",
+ tm->tm_year, tm->tm_mon, tm->tm_mday,
+ tm->tm_hour, tm->tm_min, tm->tm_sec);
+ tas2783_apply_calib(tas_dev, tmp_val);
+ } 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;
+ }
+
+ return 0;
+}
+
+static void tasdevice_rca_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, value_sdw;
+
+ mutex_lock(&tas_dev->codec_lock);
+
+ if (!fmw || !fmw->data) {
+ /* No firmware binary, devices will work in ROM mode. */
+ dev_err(tas_dev->dev,
+ "Failed to read %s, no side-effect on driver\n",
+ tas_dev->rca_binaryname);
+ ret = -EINVAL;
+ goto out;
+ }
+ buf = (unsigned char *)fmw->data;
+
+ img_sz = le32_to_cpup((__le32 *)&buf[offset]);
+ offset += sizeof(img_sz);
+ if (img_sz != fmw->size) {
+ dev_err(tas_dev->dev, "Size not matching, %d %u",
+ (int)fmw->size, img_sz);
+ ret = -EINVAL;
+ goto out;
+ }
+
+ 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, "Load FW fail: %d.\n", ret);
+ goto out;
+ }
+ offset += sizeof(unsigned int)*5 + p->length;
+ }
+ /* Select left/right channel based on unique id. */
+ value_sdw = 0x1a;
+ value_sdw += ((tas_dev->sdw_peripheral->dev_num & 1) << 4);
+ dev_dbg(tas_dev->dev, "%s dev_num = %u", __func__,
+ tas_dev->sdw_peripheral->dev_num);
+ regmap_write(map, TASDEVICE_REG(0, 0, 0x0a), value_sdw);
+
+ tas2783_calibration(tas_dev);
+
+out:
+ mutex_unlock(&tas_dev->codec_lock);
+ if (fmw)
+ release_firmware(fmw);
+}
+
+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 %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, "Unable to configure port\n");
+ return ret;
+ }
+
+ dev_dbg(dai->dev, "%s fomrat: %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, "Mute or unmute %d.\n", mute);
+
+ if (mute) {
+ /* Echo channel can't be shutdown while tas2783 must keep
+ * working state while playback is on.
+ */
+ if (direction == SNDRV_PCM_STREAM_CAPTURE
+ && tas_dev->pstream == true)
+ return 0;
+ /* 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);
+ ret |= regmap_write(map, TASDEVICE_REG(0, 0, 0x02), 0x1a);
+ tas_dev->pstream = false;
+ } else {
+ /* FU23 Unmute, 0x40400108. */
+ ret = regmap_write(map,
+ SDW_SDCA_CTL(TAS2783_FUNC_TYPE_SMART_AMP,
+ TAS2783_SDCA_ENT_FU23, TAS2783_SDCA_CTL_FU_MUTE, 0),
+ 0);
+ ret |= regmap_write(map, TASDEVICE_REG(0, 0, 0x02), 0x0);
+ if (direction == SNDRV_PCM_STREAM_PLAYBACK)
+ tas_dev->pstream = true;
+ }
+
+ 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 void tas2783_reset(struct tasdevice_priv *tas_dev)
+{
+ struct regmap *map = tas_dev->regmap;
+ int ret;
+
+ ret = regmap_write(map, TAS2873_REG_SWRESET, 1);
+ if (ret) {
+ dev_err(tas_dev->dev, "Reset failed.\n");
+ return;
+ }
+ usleep_range(1000, 1050);
+}
+
+static int tasdevice_component_probe(struct snd_soc_component *component)
+{
+ struct tasdevice_priv *tas_dev =
+ snd_soc_component_get_drvdata(component);
+
+ tas_dev->component = component;
+
+ dev_dbg(tas_dev->dev, "%s was called.\n", __func__);
+
+ return 0;
+}
+
+static const struct snd_soc_component_driver
+ soc_codec_driver_tasdevice = {
+ .probe = tasdevice_component_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);
+
+ mutex_init(&tas_dev->codec_lock);
+ 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);
+ }
+
+ tas2783_reset(tas_dev);
+ /* tas2783-8[9,...,f].bin was copied into /lib/firmware/ */
+ scnprintf(tas_dev->rca_binaryname, 64, "tas2783-%01x.bin",
+ tas_dev->sdw_peripheral->id.unique_id);
+
+ ret = request_firmware_nowait(THIS_MODULE, FW_ACTION_UEVENT,
+ tas_dev->rca_binaryname, tas_dev->dev, GFP_KERNEL,
+ tas_dev, tasdevice_rca_ready);
+ if (ret) {
+ dev_dbg(tas_dev->dev,
+ "%s: request_firmware %x open status: %d.\n",
+ __func__, tas_dev->sdw_peripheral->id.unique_id, 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);
+
+ dev_dbg(tas_dev->dev, "%s was called for TAS2783.\n", __func__);
+
+ return ret;
+}
+
+static int tasdevice_read_prop(struct sdw_slave *slave)
+{
+ struct sdw_slave_prop *prop = &slave->prop;
+ int nval;
+ int i, j;
+ u32 bit;
+ unsigned long addr;
+ struct sdw_dpn_prop *dpn;
+
+ 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);
+
+ if (tas_priv->hw_init)
+ return 0;
+
+ if (tas_priv->first_hw_init) {
+ regcache_cache_only(tas_priv->regmap, false);
+ regcache_cache_bypass(tas_priv->regmap, true);
+ } else {
+ /*
+ * PM runtime is only enabled when a Slave reports as Attached
+ */
+
+ /* set autosuspend parameters */
+ pm_runtime_set_autosuspend_delay(&slave->dev, 3000);
+ pm_runtime_use_autosuspend(&slave->dev);
+
+ /* update count of parent 'active' children */
+ pm_runtime_set_active(&slave->dev);
+
+ /* make sure the device does not suspend immediately */
+ pm_runtime_mark_last_busy(&slave->dev);
+
+ pm_runtime_enable(&slave->dev);
+ }
+
+ pm_runtime_get_noresume(&slave->dev);
+
+ /* sw reset */
+ regmap_write(tas_priv->regmap, 0x8001, 0x01);
+
+ if (tas_priv->first_hw_init) {
+ regcache_cache_bypass(tas_priv->regmap, false);
+ regcache_mark_dirty(tas_priv->regmap);
+ } else
+ tas_priv->first_hw_init = true;
+ /* Mark Slave initialization complete */
+ tas_priv->hw_init = true;
+
+ return 0;
+}
+
+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 void tasdevice_remove(struct tasdevice_priv *tas_dev)
+{
+ mutex_destroy(&tas_dev->codec_lock);
+}
+
+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;
+ int ret;
+
+ 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)) {
+ ret = PTR_ERR(tas_dev->regmap);
+ dev_err(dev, "Failed %d of devm_regmap_init_sdw.", ret);
+ } else
+ ret = tasdevice_init(tas_dev);
+
+ if (ret < 0)
+ tasdevice_remove(tas_dev);
+
+ return ret;
+}
+
+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);
+ tasdevice_remove(tas_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 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));
+ 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 = {
+ SET_SYSTEM_SLEEP_PM_OPS(tas2783_sdca_dev_suspend,
+ tas2783_sdca_dev_resume)
+ SET_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@xxxxxx>");
+MODULE_AUTHOR("Shenghao Ding <shenghao-ding@xxxxxx>");
+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..703b2c0b78a6
--- /dev/null
+++ b/sound/soc/codecs/tas2783.h
@@ -0,0 +1,97 @@
+/* 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@xxxxxx>
+ * Shenghao Ding <shenghao-ding@xxxxxx>
+ */
+
+#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, 0X0, 0x01)
+
+/* 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)
+
+/* Unique id start */
+#define TAS2783_ID_MIN 0x08
+/* Unique id end */
+#define TAS2783_ID_MAX 0x0F
+
+/* 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_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 mutex codec_lock;
+ struct regmap *regmap;
+ struct device *dev;
+ struct tm tm;
+ unsigned char rca_binaryname[64];
+ unsigned char dev_name[32];
+ unsigned int chip_id;
+ bool pstream;
+ bool hw_init;
+ bool first_hw_init;
+};
+
+#endif /*__TAS2783_H__ */
--
2.34.1