Re: [alsa-devel] [PATCH] tas2770: add tas2770 smart PA kernel driver

Shi

On 9/6/19 2:06 AM, shifu0704@thundersoft.com wrote:

From: Frank Shi shifu0704@thundersoft.com

add tas2770 smart PA kernel driver

Signed-off-by: Frank Shi shifu0704@thundersoft.com

sound/soc/codecs/Kconfig | 5 + sound/soc/codecs/Makefile | 2 + sound/soc/codecs/tas2770.c | 1103 ++++++++++++++++++++++++++++++++++++++++++++ sound/soc/codecs/tas2770.h | 173 +++++++ 4 files changed, 1283 insertions(+) create mode 100644 sound/soc/codecs/tas2770.c create mode 100644 sound/soc/codecs/tas2770.h

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 8f3e787..cc92da3 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -111,6 +111,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_STAC9766 if SND_SOC_AC97_BUS select SND_SOC_STI_SAS select SND_SOC_TAS2552 if I2C

• select SND_SOC_TAS2770 if I2C select SND_SOC_TAS5086 if I2C select SND_SOC_TAS571X if I2C select SND_SOC_TFA9879 if I2C

@@ -652,6 +653,10 @@ config SND_SOC_TAS2552 tristate "Texas Instruments TAS2552 Mono Audio amplifier" depends on I2C

+config SND_SOC_TAS2770

• tristate "Texas Instruments TAS2770 speaker amplifier"
• depends on I2C
• 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 5305cc6..1b58d08 100644 --- a/sound/soc/codecs/Makefile +++ b/sound/soc/codecs/Makefile @@ -116,6 +116,7 @@ snd-soc-stac9766-objs := stac9766.o snd-soc-sti-sas-objs := sti-sas.o snd-soc-tas5086-objs := tas5086.o snd-soc-tas571x-objs := tas571x.o +snd-soc-tas2770-objs := tas2770.o

extra space between = tas2770.o

snd-soc-tfa9879-objs := tfa9879.o snd-soc-tlv320aic23-objs := tlv320aic23.o snd-soc-tlv320aic23-i2c-objs := tlv320aic23-i2c.o @@ -332,6 +333,7 @@ obj-$(CONFIG_SND_SOC_STI_SAS) += snd-soc-sti-sas.o obj-$(CONFIG_SND_SOC_TAS2552) += snd-soc-tas2552.o obj-$(CONFIG_SND_SOC_TAS5086) += snd-soc-tas5086.o obj-$(CONFIG_SND_SOC_TAS571X) += snd-soc-tas571x.o +obj-$(CONFIG_SND_SOC_TAS2770) += snd-soc-tas2770.o obj-$(CONFIG_SND_SOC_TFA9879) += snd-soc-tfa9879.o obj-$(CONFIG_SND_SOC_TLV320AIC23) += snd-soc-tlv320aic23.o obj-$(CONFIG_SND_SOC_TLV320AIC23_I2C) += snd-soc-tlv320aic23-i2c.o diff --git a/sound/soc/codecs/tas2770.c b/sound/soc/codecs/tas2770.c new file mode 100644 index 0000000..9fc0c11 --- /dev/null +++ b/sound/soc/codecs/tas2770.c @@ -0,0 +1,1103 @@ +// SPDX-License-Identifier: GPL-2.0 +/*

• • ALSA SoC Texas Instruments TAS2770 20-W Digital Input Mono Class-D
• • Audio Amplifier with Speaker I/V Sense
• • Copyright (C) 2016-2017 Texas Instruments Incorporated - http://www.ti.com/
• • Author: Tracy Yi tracy-yi@ti.com
• • Shi Fu shifu0704@thundersoft.com
• */

+#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/err.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/pm.h> +#include <linux/i2c.h> +#include <linux/gpio.h> +#include <linux/pm_runtime.h> +#include <linux/regulator/consumer.h> +#include <linux/firmware.h> +#include <linux/regmap.h> +#include <linux/of.h> +#include <linux/of_gpio.h> +#include <linux/slab.h> +#include <sound/soc.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/initval.h> +#include <sound/tlv.h>

+#include "tas2770.h"

+#define TAS2770_MDELAY 0xFFFFFFFE +#define TAS2770_CHECK_PERIOD 5000 /* 5 second */

+static void tas2770_hw_reset(struct tas2770_priv *p_tas2770) +{

• if (p_tas2770->mn_reset_gpio) {

• gpiod_set_value_cansleep(p_tas2770->mn_reset_gpio, 0);
  

• msleep(20);
  

• gpiod_set_value_cansleep(p_tas2770->mn_reset_gpio, 1);
  

• }
• p_tas2770->mn_current_book = -1;
• p_tas2770->mn_current_page = -1;

+}

+static void tas2770_enable_irq(struct tas2770_priv *p_tas2770, bool enable) +{

• if (enable) {

• if (p_tas2770->mb_irq_enable)
  

• 	return;
  

• if (gpio_is_valid(p_tas2770->mn_irq))
  

• 	enable_irq(p_tas2770->mn_irq);
  

• p_tas2770->mb_irq_enable = true;
  

• } else {

• if (gpio_is_valid(p_tas2770->mn_irq))
  

• 	disable_irq_nosync(p_tas2770->mn_irq);
  

• p_tas2770->mb_irq_enable = false;
  

• }

+}

+static int tas2770_runtime_suspend(struct tas2770_priv *p_tas2770) +{

• p_tas2770->mb_runtime_suspend = true;
• return 0;

+}

+static int tas2770_runtime_resume(struct tas2770_priv *p_tas2770) +{

• p_tas2770->mb_runtime_suspend = false;
• return 0;

+}

+static int tas2770_regmap_write(struct tas2770_priv *p_tas2770,

• 	unsigned int reg, unsigned int value)
  

Why are you calling this function regmap_write when it uses the snd_soc_component_write?

And why do we need this function at all?  For retries?  Does every call to write or read need to have a retry?

I am think you can eliminate this function and just use the snd_soc_component_read/write directly

+{

• int nResult = 0;
• int retry_count = TAS2770_I2C_RETRY_COUNT;
• while (retry_count--) {

• nResult = snd_soc_component_write(p_tas2770->component, reg,
  

• 	value);
  

• if (!nResult)
  

• 	break;
  

• msleep(20);
  

• }
• if (retry_count == -1)

• return ERROR_I2C_FAILED;
  

• else

• return 0;
  

+}

+static int tas2770_regmap_read(struct tas2770_priv *p_tas2770,

• 	unsigned int reg, unsigned int *value)
  

+{

• int nResult = 0;
• int retry_count = TAS2770_I2C_RETRY_COUNT;
• while (retry_count--) {

• nResult = snd_soc_component_read(p_tas2770->component, reg,
  

• 	value);
  

• if (!nResult)
  

• 	break;
  

• msleep(20);
  

• }
• if (!retry_count)

• return ERROR_I2C_FAILED;
  

• return 0;

+}

+static int tas2770_codec_suspend(struct snd_soc_component *component) +{

• struct tas2770_priv *p_tas2770 =

• 	snd_soc_component_get_drvdata(component);
  

• mutex_lock(&p_tas2770->codec_lock);
• tas2770_runtime_suspend(p_tas2770);
• mutex_unlock(&p_tas2770->codec_lock);
• return 0;

+}

+static int tas2770_codec_resume(struct snd_soc_component *component) +{

• struct tas2770_priv *p_tas2770 =

• 	snd_soc_component_get_drvdata(component);
  

• mutex_lock(&p_tas2770->codec_lock);
• tas2770_runtime_resume(p_tas2770);
• mutex_unlock(&p_tas2770->codec_lock);
• return 0;

+}

+static const char * const tas2770_ASI1_src[] = {

• "I2C offset", "Left", "Right", "LeftRightDiv2",

+};

+static SOC_ENUM_SINGLE_DECL(

• tas2770_ASI1_src_enum, TAS2770_TDM_CFG_REG2,
• 4, tas2770_ASI1_src);

+static const struct snd_kcontrol_new tas2770_asi1_mux =

• SOC_DAPM_ENUM("ASI1 Source", tas2770_ASI1_src_enum);

+static int tas2770_set_power_state(struct tas2770_priv *p_tas2770, int state) +{

• struct snd_soc_component *component = p_tas2770->component;
• switch (state) {
• case TAS2770_POWER_ACTIVE:

• snd_soc_component_update_bits(component, TAS2770_PWR_CTRL,
  

• 	TAS2770_PWR_CTRL_MASK,
  

• 	TAS2770_PWR_CTRL_ACTIVE);
  

• p_tas2770->mn_power_state = TAS2770_POWER_ACTIVE;
  

• tas2770_enable_irq(p_tas2770, true);
  

• break;
  

• case TAS2770_POWER_MUTE:

• snd_soc_component_update_bits(component, TAS2770_PWR_CTRL,
  

• 	TAS2770_PWR_CTRL_MASK,
  

• 	TAS2770_PWR_CTRL_MUTE);
  

• p_tas2770->mn_power_state = TAS2770_POWER_MUTE;
  

• break;
  

• case TAS2770_POWER_SHUTDOWN:

• snd_soc_component_update_bits(component, TAS2770_PWR_CTRL,
  

• 	TAS2770_PWR_CTRL_MASK,
  

• 	TAS2770_PWR_CTRL_SHUTDOWN);
  

• tas2770_enable_irq(p_tas2770, false);
  

• p_tas2770->mn_power_state = TAS2770_POWER_SHUTDOWN;
  

• break;
  

• default:

• dev_err(p_tas2770->dev,
  

• 		"wrong power state setting %d\n", state);
  

• return -EINVAL;
  

• }
• return 0;

+}

+static int tas2770_dac_event(struct snd_soc_dapm_widget *w,

• 	     struct snd_kcontrol *kcontrol, int event)
  

+{

• struct snd_soc_component *component =

• 	snd_soc_dapm_to_component(w->dapm);
  

• struct tas2770_priv *p_tas2770 =

• 	snd_soc_component_get_drvdata(component);
  

• int ret;
• mutex_lock(&p_tas2770->codec_lock);
• switch (event) {
• case SND_SOC_DAPM_POST_PMU:

• ret = tas2770_set_power_state(p_tas2770,
  

• 	TAS2770_POWER_MUTE);
  

• if (ret)
  

• 	goto end;
  

• break;
  

• case SND_SOC_DAPM_PRE_PMD:

• ret = tas2770_set_power_state(p_tas2770,
  

• 	TAS2770_POWER_SHUTDOWN);
  

• if (ret)
  

• 	goto end;
  

• break;
  

• default:

• dev_err(p_tas2770->dev, "Not supported evevt\n");
  

• ret = -EINVAL;
  

• }

+end:

• mutex_unlock(&p_tas2770->codec_lock);
• return ret;

+}

+static const struct snd_kcontrol_new isense_switch =

• SOC_DAPM_SINGLE("Switch", TAS2770_PWR_CTRL, 3, 1, 1);

+static const struct snd_kcontrol_new vsense_switch =

• SOC_DAPM_SINGLE("Switch", TAS2770_PWR_CTRL, 2, 1, 1);

+static const struct snd_soc_dapm_widget tas2770_dapm_widgets[] = {

• SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
• SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0,

• 		&tas2770_asi1_mux),
  

• SND_SOC_DAPM_SWITCH("ISENSE", TAS2770_PWR_CTRL, 3, 1,

• 	&isense_switch),
  

• SND_SOC_DAPM_SWITCH("VSENSE", TAS2770_PWR_CTRL, 2, 1,

• 	&vsense_switch),
  

• SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2770_dac_event,
• SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
• SND_SOC_DAPM_OUTPUT("OUT"),
• SND_SOC_DAPM_SIGGEN("VMON"),
• SND_SOC_DAPM_SIGGEN("IMON")

+};

+static const struct snd_soc_dapm_route tas2770_audio_map[] = {

• {"ASI1 Sel", "I2C offset", "ASI1"},
• {"ASI1 Sel", "Left", "ASI1"},
• {"ASI1 Sel", "Right", "ASI1"},
• {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
• {"DAC", NULL, "ASI1 Sel"},
• {"OUT", NULL, "DAC"},
• {"ISENSE", "Switch", "IMON"},
• {"VSENSE", "Switch", "VMON"},

+};

extra new line

+static int tas2770_mute(struct snd_soc_dai *dai, int mute) +{

• struct snd_soc_component *component = dai->component;
• struct tas2770_priv *p_tas2770 =

• 	snd_soc_component_get_drvdata(component);
  

• int ret;

extra new line

• mutex_lock(&p_tas2770->codec_lock);
• if (mute)

• ret = tas2770_set_power_state(p_tas2770, TAS2770_POWER_MUTE);
  

• else

• ret = tas2770_set_power_state(p_tas2770, TAS2770_POWER_ACTIVE);
  

• mutex_unlock(&p_tas2770->codec_lock);
• return ret;

+}

+static int tas2770_set_slot(struct snd_soc_component *component, int slot_width) +{

• int ret;
• struct tas2770_priv *p_tas2770 =

• 	snd_soc_component_get_drvdata(component);
  

• switch (slot_width) {
• case 16:
• ret = snd_soc_component_update_bits(component,

• TAS2770_TDM_CFG_REG2,
  

• TAS2770_TDM_CFG_REG2_RXS_MASK,
  

• TAS2770_TDM_CFG_REG2_RXS_16BITS);
  

• break;
• case 24:
• ret = snd_soc_component_update_bits(component,

• TAS2770_TDM_CFG_REG2,
  

• TAS2770_TDM_CFG_REG2_RXS_MASK,
  

• TAS2770_TDM_CFG_REG2_RXS_24BITS);
  

• break;
• case 32:
• ret = snd_soc_component_update_bits(component,

• TAS2770_TDM_CFG_REG2,
  

• TAS2770_TDM_CFG_REG2_RXS_MASK,
  

• TAS2770_TDM_CFG_REG2_RXS_32BITS);
  

• break;
• case 0:
• /* Do not change slot width */
• ret = 0;
• break;
• default:

• ret = -EINVAL;
  

• }
• if (!ret)

• p_tas2770->mn_slot_width = slot_width;
  

• return ret;

+}

+static int tas2770_set_bitwidth(struct tas2770_priv *p_tas2770, int bitwidth) +{

• int ret;
• struct snd_soc_component *component = p_tas2770->component;
• switch (bitwidth) {
• case SNDRV_PCM_FORMAT_S16_LE:

• ret = snd_soc_component_update_bits(component,
  

• 	TAS2770_TDM_CFG_REG2,
  

• 	TAS2770_TDM_CFG_REG2_RXW_MASK,
  

• 	TAS2770_TDM_CFG_REG2_RXW_16BITS);
  

• 	/* If machine driver did not call set slot width */
  

• if (p_tas2770->mn_slot_width == 0)
  

• 	tas2770_set_slot(component, TAS2770_SLOT_16BIT);
  

• p_tas2770->mn_v_mon_slot_no = p_tas2770->mn_i_mon_slot_no + 2;
  

• break;
  

• case SNDRV_PCM_FORMAT_S24_LE:

• ret = snd_soc_component_update_bits(component,
  

• 	TAS2770_TDM_CFG_REG2,
  

• 	TAS2770_TDM_CFG_REG2_RXW_MASK,
  

• 	TAS2770_TDM_CFG_REG2_RXW_24BITS);
  

• if (p_tas2770->mn_slot_width == 0)
  

• 	tas2770_set_slot(component, TAS2770_SLOT_32BIT);
  

• p_tas2770->mn_v_mon_slot_no = p_tas2770->mn_i_mon_slot_no + 4;
  

• break;
  

• case SNDRV_PCM_FORMAT_S32_LE:

• ret = snd_soc_component_update_bits(component,
  

• 	TAS2770_TDM_CFG_REG2,
  

• 	TAS2770_TDM_CFG_REG2_RXW_MASK,
  

• 	TAS2770_TDM_CFG_REG2_RXW_32BITS);
  

• if (p_tas2770->mn_slot_width == 0)
  

• 	tas2770_set_slot(component, TAS2770_SLOT_32BIT);
  

• p_tas2770->mn_v_mon_slot_no = p_tas2770->mn_i_mon_slot_no + 4;
  

• break;
  

• default:

• return -EINVAL;
  

• }
• p_tas2770->mn_ch_size = bitwidth;
• ret = snd_soc_component_update_bits(component,

• TAS2770_TDM_CFG_REG5,
  

• TAS2770_TDM_CFG_REG5_VSNS_MASK |
  

• TAS2770_TDM_CFG_REG5_50_MASK,
  

• TAS2770_TDM_CFG_REG5_VSNS_ENABLE |
  

• p_tas2770->mn_v_mon_slot_no);
  

• if (ret)

• goto end;
  

• ret = snd_soc_component_update_bits(component,

• TAS2770_TDM_CFG_REG6,
  

• TAS2770_TDM_CFG_REG6_ISNS_MASK |
  

• TAS2770_TDM_CFG_REG6_50_MASK,
  

• TAS2770_TDM_CFG_REG6_ISNS_ENABLE |
  

• p_tas2770->mn_i_mon_slot_no);
  

+end:

• return ret;

+}

+static int tas2770_set_samplerate(struct tas2770_priv *p_tas2770,

• 						int samplerate)
  

+{

• int ret;
• struct snd_soc_component *component = p_tas2770->component;
• switch (samplerate) {
• case 48000:

• ret = snd_soc_component_update_bits(component,
  

• 	TAS2770_TDM_CFG_REG0,
  

• 	TAS2770_TDM_CFG_REG0_SMP_MASK,
  

• 	TAS2770_TDM_CFG_REG0_SMP_48KHZ);
  

• if (ret)
  

• 	goto end;
  

• ret = snd_soc_component_update_bits(component,
  

• 	TAS2770_TDM_CFG_REG0,
  

• 	TAS2770_TDM_CFG_REG0_31_MASK,
  

• 	TAS2770_TDM_CFG_REG0_31_44_1_48KHZ);
  

• if (ret)
  

• 	goto end;
  

• break;
  

• case 44100:

• ret = snd_soc_component_update_bits(component,
  

• 	TAS2770_TDM_CFG_REG0,
  

• 	TAS2770_TDM_CFG_REG0_SMP_MASK,
  

• 	TAS2770_TDM_CFG_REG0_SMP_44_1KHZ);
  

• if (ret)
  

• 	goto end;
  

• ret = snd_soc_component_update_bits(component,
  

• 	TAS2770_TDM_CFG_REG0,
  

• 	TAS2770_TDM_CFG_REG0_31_MASK,
  

• 	TAS2770_TDM_CFG_REG0_31_44_1_48KHZ);
  

• if (ret)
  

• 	goto end;
  

• break;
  

• case 96000:

• ret = snd_soc_component_update_bits(component,
  

• 	TAS2770_TDM_CFG_REG0,
  

• 	TAS2770_TDM_CFG_REG0_SMP_MASK,
  

• 	TAS2770_TDM_CFG_REG0_SMP_48KHZ);
  

• if (ret)
  

• 	goto end;
  

• ret = snd_soc_component_update_bits(component,
  

• 	TAS2770_TDM_CFG_REG0,
  

• 	TAS2770_TDM_CFG_REG0_31_MASK,
  

• 	TAS2770_TDM_CFG_REG0_31_88_2_96KHZ);
  

• break;
  

• case 88200:

• ret = snd_soc_component_update_bits(component,
  

• 	TAS2770_TDM_CFG_REG0,
  

• 	TAS2770_TDM_CFG_REG0_SMP_MASK,
  

• 	TAS2770_TDM_CFG_REG0_SMP_44_1KHZ);
  

• if (ret)
  

• 	goto end;
  

• ret = snd_soc_component_update_bits(component,
  

• 	TAS2770_TDM_CFG_REG0,
  

• 	TAS2770_TDM_CFG_REG0_31_MASK,
  

• 	TAS2770_TDM_CFG_REG0_31_88_2_96KHZ);
  

• break;
  

• case 19200:

• ret = snd_soc_component_update_bits(component,
  

• 	TAS2770_TDM_CFG_REG0,
  

• 	TAS2770_TDM_CFG_REG0_SMP_MASK,
  

• 	TAS2770_TDM_CFG_REG0_SMP_48KHZ);
  

• if (ret)
  

• 	goto end;
  

• ret = snd_soc_component_update_bits(component,
  

• 	TAS2770_TDM_CFG_REG0,
  

• 	TAS2770_TDM_CFG_REG0_31_MASK,
  

• 	TAS2770_TDM_CFG_REG0_31_176_4_192KHZ);
  

• if (ret)
  

• 	goto end;
  

• break;
  

• case 17640:

• ret = snd_soc_component_update_bits(component,
  

• 	TAS2770_TDM_CFG_REG0,
  

• 	TAS2770_TDM_CFG_REG0_SMP_MASK,
  

• 	TAS2770_TDM_CFG_REG0_SMP_44_1KHZ);
  

• if (ret)
  

• 	goto end;
  

• ret = snd_soc_component_update_bits(component,
  

• 	TAS2770_TDM_CFG_REG0,
  

• 	TAS2770_TDM_CFG_REG0_31_MASK,
  

• 	TAS2770_TDM_CFG_REG0_31_176_4_192KHZ);
  

• break;
  

• default:

• ret = -EINVAL;
  

• }

+end:

• if (!ret)

• p_tas2770->mn_sampling_rate = samplerate;
  

• return ret;

+}

+static int tas2770_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 tas2770_priv *p_tas2770 =

• 	snd_soc_component_get_drvdata(component);
  

• int ret;
• mutex_lock(&p_tas2770->codec_lock);
• ret = tas2770_set_bitwidth(p_tas2770, params_format(params));
• if (ret < 0)

• goto end;
  

• ret = tas2770_set_samplerate(p_tas2770, params_rate(params));

+end:

• mutex_unlock(&p_tas2770->codec_lock);
• return ret;

+}

+static int tas2770_set_fmt(struct tas2770_priv *p_tas2770, unsigned int fmt) +{

• u8 tdm_rx_start_slot = 0, asi_cfg_1 = 0;
• int ret;
• int value = 0;
• struct snd_soc_component *component = p_tas2770->component;
• switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
• case SND_SOC_DAIFMT_CBS_CFS:

• break;
  

• default:

• dev_err(p_tas2770->dev, "ASI format master is not found\n");
  

• ret = -EINVAL;
  

• return ret;
  

• }
• switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
• case SND_SOC_DAIFMT_NB_NF:

• asi_cfg_1 |= TAS2770_TDM_CFG_REG1_RX_RSING;
  

• break;
  

• case SND_SOC_DAIFMT_IB_NF:

• asi_cfg_1 |= TAS2770_TDM_CFG_REG1_RX_FALING;
  

• break;
  

• default:

• dev_err(p_tas2770->dev, "ASI format Inverse is not found\n");
  

• ret = -EINVAL;
  

• return ret;
  

• }
• ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG1,

• TAS2770_TDM_CFG_REG1_RX_MASK,
  

• asi_cfg_1);
  

• if (ret)

• return ret;
  

• switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
• case (SND_SOC_DAIFMT_I2S):

• tdm_rx_start_slot = 1;
  

• break;
  

• case (SND_SOC_DAIFMT_DSP_A):
• case (SND_SOC_DAIFMT_DSP_B):

• tdm_rx_start_slot = 1;
  

• break;
  

• case (SND_SOC_DAIFMT_LEFT_J):

• tdm_rx_start_slot = 0;
  

• break;
  

• default:

• dev_err(p_tas2770->dev,
  

• 	"DAI Format is not found, fmt=0x%x\n", fmt);
  

• ret = -EINVAL;
  

• return ret;
  

• }
• ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG1,

• TAS2770_TDM_CFG_REG1_MASK,
  

• (tdm_rx_start_slot << TAS2770_TDM_CFG_REG1_51_SHIFT));
• if (ret)

• return ret;
  

• ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG3,

• TAS2770_TDM_CFG_REG3_30_MASK,
  

• (p_tas2770->mn_left_slot <<
  

• 	TAS2770_TDM_CFG_REG3_30_SHIFT));
  

• if (ret)

• return ret;
  

• ret = snd_soc_component_update_bits(component, TAS2770_TDM_CFG_REG3,

• TAS2770_TDM_CFG_REG3_RXS_MASK,
  

• (p_tas2770->mn_right_slot <<

• TAS2770_TDM_CFG_REG3_RXS_SHIFT));
  

• if (ret)

• return ret;
  

• value = snd_soc_component_read32(component, TAS2770_TDM_CFG_REG3);
• p_tas2770->mn_asi_format = fmt;
• return 0;

+}

+static int tas2770_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) +{

• struct snd_soc_component *component = dai->component;
• struct tas2770_priv *p_tas2770 =

• 	snd_soc_component_get_drvdata(component);
  

• int ret;
• mutex_lock(&p_tas2770->codec_lock);
• ret = tas2770_set_fmt(p_tas2770, fmt);
• mutex_unlock(&p_tas2770->codec_lock);
• return ret;

+}

+static int tas2770_set_dai_tdm_slot(struct snd_soc_dai *dai,

• 		unsigned int tx_mask,
  

• 		unsigned int rx_mask,
  

• 		int slots, int slot_width)
  

+{

• int ret;
• struct snd_soc_component *component = dai->component;
• struct tas2770_priv *p_tas2770 =

• 	snd_soc_component_get_drvdata(component);
  

• mutex_lock(&p_tas2770->codec_lock);
• ret = tas2770_set_slot(component, slot_width);
• mutex_unlock(&p_tas2770->codec_lock);
• return ret;

+}

+static struct snd_soc_dai_ops tas2770_dai_ops = {

• .digital_mute = tas2770_mute,
• .hw_params = tas2770_hw_params,
• .set_fmt = tas2770_set_dai_fmt,
• .set_tdm_slot = tas2770_set_dai_tdm_slot,

+};

+#define TAS2770_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\

• SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
  

+#define TAS2770_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\

• 			   SNDRV_PCM_RATE_96000 |\
  

• 			    SNDRV_PCM_RATE_192000\
  

• 			  )
  

+static struct snd_soc_dai_driver tas2770_dai_driver[] = {

• {

• .name = "tas2770 ASI1",
  

• .id = 0,
  

• .playback = {
  

• 	.stream_name    = "ASI1 Playback",
  

• 	.channels_min   = 2,
  

• 	.channels_max   = 2,
  

• 	.rates      = TAS2770_RATES,
  

• 	.formats    = TAS2770_FORMATS,
  

• },
  

• .capture = {
  

• 	.stream_name    = "ASI1 Capture",
  

• 	.channels_min   = 0,
  

• 	.channels_max   = 2,
  

• 	.rates          = TAS2770_RATES,
  

• 	.formats    = TAS2770_FORMATS,
  

• },
  

• .ops = &tas2770_dai_ops,
  

• .symmetric_rates = 1,
  

• },

+};

+static int tas2770_codec_probe(struct snd_soc_component *component) +{

• struct tas2770_priv *p_tas2770 =

• 	snd_soc_component_get_drvdata(component);
  

• p_tas2770->component = component;
• return 0;

+}

+static void tas2770_codec_remove(struct snd_soc_component *component) +{

• pm_runtime_put(component->dev);

+}

+static DECLARE_TLV_DB_SCALE(tas2770_digital_tlv, 1100, 50, 0); +static DECLARE_TLV_DB_SCALE(tas2770_playback_volume, -12750, 50, 0);

+static const struct snd_kcontrol_new tas2770_snd_controls[] = {

• SOC_SINGLE_TLV("Amp Output Level", TAS2770_PLAY_CFG_REG0,

• 0, 0x14, 0,
  

• tas2770_digital_tlv),
  

• SOC_SINGLE_TLV("Playback Volume", TAS2770_PLAY_CFG_REG2,

• 0, TAS2770_PLAY_CFG_REG2_VMAX, 1,
  

• tas2770_playback_volume),
  

+};

+static const struct snd_soc_component_driver soc_component_driver_tas2770 = {

• .probe = tas2770_codec_probe,
• .remove = tas2770_codec_remove,
• .suspend = tas2770_codec_suspend,
• .resume = tas2770_codec_resume,
• .controls = tas2770_snd_controls,
• .num_controls = ARRAY_SIZE(tas2770_snd_controls),
• .dapm_widgets = tas2770_dapm_widgets,
• .num_dapm_widgets = ARRAY_SIZE(tas2770_dapm_widgets),
• .dapm_routes = tas2770_audio_map,
• .num_dapm_routes = ARRAY_SIZE(tas2770_audio_map),
• .idle_bias_on = 1,
• .endianness = 1,
• .non_legacy_dai_naming = 1,

+};

+static int tas2770_register_codec(struct tas2770_priv *p_tas2770) +{

• return devm_snd_soc_register_component(p_tas2770->dev,

• &soc_component_driver_tas2770,
  

• tas2770_dai_driver, ARRAY_SIZE(tas2770_dai_driver));
  

+}

+static void tas2770_load_config(struct tas2770_priv *p_tas2770) +{

• int ret;
• tas2770_hw_reset(p_tas2770);
• tas2770_regmap_write(p_tas2770, TAS2770_SW_RST,

• 	TAS2770_RST);
  

• ret = tas2770_set_slot(p_tas2770->component, p_tas2770->mn_slot_width);
• if (ret)

• goto error_out;
  

• ret = tas2770_set_fmt(p_tas2770, p_tas2770->mn_asi_format);
• if (ret)

• goto error_out;
  

• ret = tas2770_set_bitwidth(p_tas2770, p_tas2770->mn_ch_size);
• if (ret)

• goto error_out;
  

• ret = tas2770_set_samplerate(p_tas2770, p_tas2770->mn_sampling_rate);
• if (ret)

• goto error_out;
  

• ret = tas2770_set_power_state(p_tas2770, p_tas2770->mn_power_state);
• if (ret)

• goto error_out;
  

+error_out:

• return;
  

+}

+static const struct reg_default tas2770_reg_defaults[] = {

• { TAS2770_PAGE, 0x00 },
• { TAS2770_SW_RST, 0x00 },
• { TAS2770_PWR_CTRL, 0x0e },
• { TAS2770_PLAY_CFG_REG0, 0x10 },
• { TAS2770_PLAY_CFG_REG1, 0x01 },
• { TAS2770_PLAY_CFG_REG2, 0x00 },
• { TAS2770_MSC_CFG_REG0, 0x07 },
• { TAS2770_TDM_CFG_REG1, 0x02 },
• { TAS2770_TDM_CFG_REG2, 0x0a },
• { TAS2770_TDM_CFG_REG3, 0x10 },
• { TAS2770_INT_MASK_REG0, 0xfc },
• { TAS2770_INT_MASK_REG1, 0xb1 },
• { TAS2770_INT_CFG, 0x05 },
• { TAS2770_MISC_IRQ, 0x81 },
• { TAS2770_CLK_CGF, 0x0c },

+};

+static bool tas2770_volatile(struct device *dev, unsigned int reg) +{

• switch (reg) {
• case TAS2770_PAGE: /* regmap implementation requires this */
• case TAS2770_SW_RST: /* always clears after write */
• case TAS2770_BO_PRV_REG0:/* has a self clearing bit */
• case TAS2770_LVE_INT_REG0:
• case TAS2770_LVE_INT_REG1:
• case TAS2770_LAT_INT_REG0:/* Sticky interrupt flags */
• case TAS2770_LAT_INT_REG1:/* Sticky interrupt flags */
• case TAS2770_VBAT_MSB:
• case TAS2770_VBAT_LSB:
• case TAS2770_TEMP_MSB:
• case TAS2770_TEMP_LSB:

• return true;
  

• }
• return false;

+}

+static bool tas2770_writeable(struct device *dev, unsigned int reg) +{

• switch (reg) {
• case TAS2770_LVE_INT_REG0:
• case TAS2770_LVE_INT_REG1:
• case TAS2770_LAT_INT_REG0:
• case TAS2770_LAT_INT_REG1:
• case TAS2770_VBAT_MSB:
• case TAS2770_VBAT_LSB:
• case TAS2770_TEMP_MSB:
• case TAS2770_TEMP_LSB:
• case TAS2770_TDM_CLK_DETC:
• case TAS2770_REV_AND_GPID:

• return false;
  

• }
• return true;

+}

+static const struct regmap_range_cfg tas2770_regmap_ranges[] = {

• {

• .range_min = 0,
  

• .range_max = 1 * 128,
  

• .selector_reg = TAS2770_PAGE,
  

• .selector_mask = 0xff,
  

• .selector_shift = 0,
  

• .window_start = 0,
  

• .window_len = 128,
  

• },

+};

+static const struct regmap_config tas2770_i2c_regmap = {

• .reg_bits = 8,
• .val_bits = 8,
• .writeable_reg = tas2770_writeable,
• .volatile_reg = tas2770_volatile,
• .reg_defaults = tas2770_reg_defaults,
• .num_reg_defaults = ARRAY_SIZE(tas2770_reg_defaults),
• .cache_type = REGCACHE_RBTREE,
• .ranges = tas2770_regmap_ranges,
• .num_ranges = ARRAY_SIZE(tas2770_regmap_ranges),
• .max_register = 1 * 128,

+};

+static irqreturn_t tas2770_irq_handler(int irq, void *dev_id) +{

• struct tas2770_priv *p_tas2770 = (struct tas2770_priv *)dev_id;
• unsigned int nDevInt1Status = 0, nDevInt2Status = 0;
• int n_counter = 2;
• int n_result;
• mutex_lock(&p_tas2770->codec_lock);
• tas2770_enable_irq(p_tas2770, false);
• if (p_tas2770->mb_runtime_suspend)

• goto end;
  

• if (p_tas2770->mn_power_state == TAS2770_POWER_SHUTDOWN)

• goto end;
  

• n_result = tas2770_regmap_write(p_tas2770, TAS2770_INT_MASK_REG0,

• 		TAS2770_INT_MASK_REG0_DISABLE);
  

• if (n_result)

• goto reload;
  

• n_result = tas2770_regmap_write(p_tas2770, TAS2770_INT_MASK_REG1,

• 		TAS2770_INT_MASK_REG1_DISABLE);
  

• if (n_result)

• goto reload;
  

• n_result = tas2770_regmap_read(p_tas2770,

• 	TAS2770_LAT_INT_REG0, &nDevInt1Status);
  

• if (n_result >= 0)

• n_result = tas2770_regmap_read(p_tas2770,
  

• 	TAS2770_LAT_INT_REG1, &nDevInt2Status);
  

• else

• goto reload;
  

• if (((nDevInt1Status & 0x3) != 0) || ((nDevInt2Status & 0x0f) != 0)) {

magic numbers need #defines

• /* in case of INT_OC, INT_OT, INT_OVLT, INT_UVLT, INT_BO */
  

• if (nDevInt1Status &
  

• TAS2770_LAT_INT_REG0_OCE_FLG) {
  

• 	p_tas2770->mn_err_code |= ERROR_OVER_CURRENT;
  

• 	dev_err(p_tas2770->dev, "SPK over current!\n");
  

• } else {
  

• 	p_tas2770->mn_err_code &= ~ERROR_OVER_CURRENT;
  

• }
  

• if (nDevInt1Status &
  

• TAS2770_LAT_INT_REG0_OTE_FLG) {
  

• 	p_tas2770->mn_err_code |= ERROR_DIE_OVERTEMP;
  

• 	dev_err(p_tas2770->dev, "die over temperature!\n");
  

• } else {
  

• 	p_tas2770->mn_err_code &= ~ERROR_DIE_OVERTEMP;
  

• }
  

• if (nDevInt2Status &
  

• TAS2770_LAT_INT_REG1_VBA_TOV) {
  

• 	p_tas2770->mn_err_code |= ERROR_OVER_VOLTAGE;
  

• 	dev_err(p_tas2770->dev, "SPK over voltage!\n");
  

• } else {
  

• 	p_tas2770->mn_err_code &= ~ERROR_OVER_VOLTAGE;
  

• }
  

• if (nDevInt2Status &
  

• TAS2770_LAT_INT_REG1_VBA_TUV) {
  

• 	p_tas2770->mn_err_code |= ERROR_UNDER_VOLTAGE;
  

• 	dev_err(p_tas2770->dev, "SPK under voltage!\n");
  

• } else {
  

• 	p_tas2770->mn_err_code &= ~ERROR_UNDER_VOLTAGE;
  

• }
  

• if (nDevInt2Status &
  

• TAS2770_LAT_INT_REG1_BOUT_FLG) {
  

• 	p_tas2770->mn_err_code |= ERROR_BROWNOUT;
  

• 	dev_err(p_tas2770->dev, "brownout!\n");
  

• } else {
  

• 	p_tas2770->mn_err_code &= ~ERROR_BROWNOUT;
  

• }
  

• goto reload;
  

• } else {

• n_counter = 2;
  

• while (n_counter > 0) {
  

• 	n_result = tas2770_regmap_read(p_tas2770,
  

• 			TAS2770_PWR_CTRL, &nDevInt1Status);
  

• 	if (n_result)
  

• 		goto reload;
  

• 	if ((nDevInt1Status &
  

• 		TAS2770_PWR_CTRL_MASK)
  

• 		!= TAS2770_PWR_CTRL_SHUTDOWN)
  

• 		break;
  

• 	n_counter--;
  

• 	if (n_counter > 0)
  

• 		msleep(20);
  

• }
  

• if ((nDevInt1Status &
  

• 	TAS2770_PWR_CTRL_MASK)
  

• 	== TAS2770_PWR_CTRL_SHUTDOWN) {
  

• 	dev_err(p_tas2770->dev, "%s, Critical ERROR REG[0x%x] = 0x%x\n",
  

• 		__func__,
  

• 		TAS2770_PWR_CTRL,
  

• 		nDevInt1Status);
  

The formatting here is a bit funky this looks like most can honor the 80 LoC guidance

• 	p_tas2770->mn_err_code |= ERROR_CLASSD_PWR;
  

• 	goto reload;
  

• }
  

• p_tas2770->mn_err_code &= ~ERROR_CLASSD_PWR;
  

• }
• n_result = tas2770_regmap_write(p_tas2770,

• 			TAS2770_INT_MASK_REG0, 0xfc);
  

Magic number?  What is 0xfc do?

• if (n_result)

• goto reload;
  

• n_result = tas2770_regmap_write(p_tas2770,

• 			TAS2770_INT_MASK_REG1, 0xb1);
  

Magic number?  What is 0xb1 do?

• if (n_result)

• goto reload;
  

• goto end;

+reload:

• /* hardware reset and reload */
• tas2770_load_config(p_tas2770);

+end:

• mutex_unlock(&p_tas2770->codec_lock);
• tas2770_enable_irq(p_tas2770, true);
• return IRQ_HANDLED;

+}

+static int tas2770_parse_dt(struct device *dev, struct tas2770_priv *p_tas2770) +{

• int rc = 0;
• rc = fwnode_property_read_u32(dev->fwnode, "ti,asi-format",

• 			&p_tas2770->mn_asi_format);
  

• if (rc) {

• dev_err(p_tas2770->dev, "Looking up %s property failed %d\n",
  

• 	"ti,asi-format", rc);
  

• goto end;
  

• }
• rc = fwnode_property_read_u32(dev->fwnode, "ti,left-slot",

• 	 &p_tas2770->mn_left_slot);
  

• if (rc) {

• dev_err(p_tas2770->dev, "Looking up %s property failed %d\n",
  

• 	"ti,left-slot", rc);
  

• goto end;
  

• }
• rc = fwnode_property_read_u32(dev->fwnode, "ti,right-slot",

• 	&p_tas2770->mn_right_slot);
  

• if (rc) {

• dev_err(p_tas2770->dev, "Looking up %s property failed %d\n",
  

• 	"ti,right-slot", rc);
  

• goto end;
  

• }
• rc = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",

• 	&p_tas2770->mn_i_mon_slot_no);
  

• if (rc) {

• dev_err(p_tas2770->dev, "Looking up %s property failed %d\n",
  

• 	"ti,imon-slot-no", rc);
  

• goto end;
  

• }
• rc = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no",

• 		&p_tas2770->mn_v_mon_slot_no);
  

• if (rc) {

• dev_err(p_tas2770->dev, "Looking up %s property failed %d\n",
  

• 	"ti,vmon-slot-no", rc);
  

• goto end;
  

• }

+end:

• return rc;

+}

+static int tas2770_i2c_probe(struct i2c_client *client,

• 	const struct i2c_device_id *id)
  

+{

• struct tas2770_priv *p_tas2770;
• int n_result;
• p_tas2770 = devm_kzalloc(&client->dev,

• sizeof(struct tas2770_priv), GFP_KERNEL);
  

• if (p_tas2770 == NULL)

if (!p_tas2770)

• return -ENOMEM;
  

• p_tas2770->dev = &client->dev;
• p_tas2770->mn_irq = client->irq;
• i2c_set_clientdata(client, p_tas2770);
• dev_set_drvdata(&client->dev, p_tas2770);
• p_tas2770->mn_power_state = TAS2770_POWER_SHUTDOWN;
• p_tas2770->regmap = devm_regmap_init_i2c(client, &tas2770_i2c_regmap);
• if (IS_ERR(p_tas2770->regmap)) {

• n_result = PTR_ERR(p_tas2770->regmap);
  

• dev_err(&client->dev, "Failed to allocate register map: %d\n",
  

• 			n_result);
  

• goto end;
  

• }
• if (client->dev.of_node) {

• n_result = tas2770_parse_dt(&client->dev, p_tas2770);
  

• if (n_result) {
  

• 	dev_err(p_tas2770->dev, "%s: Failed to parse devicetree\n",
  

• 		__func__);
  

• 	goto end;
  

• }
  

• }
• p_tas2770->mn_reset_gpio = devm_gpiod_get_optional(p_tas2770->dev,

• 					  "reset-gpio",
  

• 				      GPIOD_OUT_HIGH);
  

• if (IS_ERR(p_tas2770->mn_reset_gpio)) {
  

• 	if (PTR_ERR(p_tas2770->mn_reset_gpio) == -EPROBE_DEFER)
  

• 		return -EPROBE_DEFER;
  

• 	p_tas2770->mn_reset_gpio = NULL;
  

• }
  

Formatting issue here

• if (p_tas2770->mn_irq > 0) {

• n_result = devm_request_threaded_irq(p_tas2770->dev,
  

• 	   p_tas2770->mn_irq,
  

• 	   NULL, tas2770_irq_handler,
  

• 	   IRQF_TRIGGER_FALLING | IRQF_ONESHOT, client->name,
  

• 	   p_tas2770);
  

• if (n_result) {
  

• 	dev_err(p_tas2770->dev, "Unable to request IRQ\n");
  

• 	return n_result;
  

• }
  

• }
• p_tas2770->mn_ch_size = 0;
• p_tas2770->mn_slot_width = 0;
• tas2770_hw_reset(p_tas2770);
• tas2770_regmap_write(p_tas2770, TAS2770_SW_RST,

• 	TAS2770_RST);
  

Why a hw_reset then a sw reset?  Shouldn't this be in a function called reset that either does HW or SW reset?

• mutex_init(&p_tas2770->dev_lock);
• mutex_init(&p_tas2770->codec_lock);
• n_result = tas2770_register_codec(p_tas2770);
• if (n_result)

• dev_err(p_tas2770->dev, "Register codec failed.\n");
  

+end:

• return n_result;

+}

+static int tas2770_i2c_remove(struct i2c_client *client) +{

• struct tas2770_priv *p_tas2770 = i2c_get_clientdata(client);
• mutex_destroy(&p_tas2770->dev_lock);

mutex_destroy(codec_lock)

• return 0;

+}

+static const struct i2c_device_id tas2770_i2c_id[] = {

• { "tas2770", 0},
• { }

+}; +MODULE_DEVICE_TABLE(i2c, tas2770_i2c_id);

+#if defined(CONFIG_OF) +static const struct of_device_id tas2770_of_match[] = {

• { .compatible = "ti,tas2770" },
• {},

+}; +MODULE_DEVICE_TABLE(of, tas2770_of_match); +#endif

+static struct i2c_driver tas2770_i2c_driver = {

• .driver = {

• .name   = "tas2770",
  

• .owner  = THIS_MODULE,
  

+#if defined(CONFIG_OF)

• .of_match_table = of_match_ptr(tas2770_of_match),
  

+#endif

• },
• .probe = tas2770_i2c_probe,
• .remove = tas2770_i2c_remove,
• .id_table = tas2770_i2c_id,

+};

+module_i2c_driver(tas2770_i2c_driver);

+MODULE_AUTHOR("Shi Fu shifu0704@thundersoft.com"); +MODULE_DESCRIPTION("TAS2770 I2C Smart Amplifier driver"); +MODULE_LICENSE("GPL v2"); diff --git a/sound/soc/codecs/tas2770.h b/sound/soc/codecs/tas2770.h new file mode 100644 index 0000000..f08e208 --- /dev/null +++ b/sound/soc/codecs/tas2770.h @@ -0,0 +1,173 @@ +/* SPDX-License-Identifier: GPL-2.0

• • ALSA SoC TAS2770 codec driver
• • Copyright (C) 2016-2017 Texas Instruments Incorporated - http://www.ti.com/
• */

+#ifndef __TAS2770__ +#define __TAS2770__

+/* Book Control Register (available in page0 of each book) */ +#define TAS2770_BOOKCTL_PAGE 0 +#define TAS2770_BOOKCTL_REG 127 +#define TAS2770_REG(page, reg) ((page * 128) + reg)

• /* Page */

+#define TAS2770_PAGE TAS2770_REG(0X0, 0x00) +#define TAS2770_PAGE_PAGE_MASK 255

• /* Software Reset */

+#define TAS2770_SW_RST TAS2770_REG(0X0, 0x01) +#define TAS2770_RST BIT(0)

• /* Power Control */

+#define TAS2770_PWR_CTRL TAS2770_REG(0X0, 0x02) +#define TAS2770_PWR_CTRL_MASK 0x3 +#define TAS2770_PWR_CTRL_ACTIVE 0x0 +#define TAS2770_PWR_CTRL_MUTE BIT(0) +#define TAS2770_PWR_CTRL_SHUTDOWN 0x2

• /* Playback Configuration Reg0 */

+#define TAS2770_PLAY_CFG_REG0 TAS2770_REG(0X0, 0x03)

• /* Playback Configuration Reg1 */

+#define TAS2770_PLAY_CFG_REG1 TAS2770_REG(0X0, 0x04)

• /* Playback Configuration Reg2 */

+#define TAS2770_PLAY_CFG_REG2 TAS2770_REG(0X0, 0x05) +#define TAS2770_PLAY_CFG_REG2_VMAX 0xc9

• /* Misc Configuration Reg0 */

+#define TAS2770_MSC_CFG_REG0 TAS2770_REG(0X0, 0x07)

• /* TDM Configuration Reg0 */

+#define TAS2770_TDM_CFG_REG0 TAS2770_REG(0X0, 0x0A) +#define TAS2770_TDM_CFG_REG0_SMP_MASK BIT(5) +#define TAS2770_TDM_CFG_REG0_SMP_48KHZ 0x0 +#define TAS2770_TDM_CFG_REG0_SMP_44_1KHZ BIT(5) +#define TAS2770_TDM_CFG_REG0_31_MASK 0xe +#define TAS2770_TDM_CFG_REG0_31_44_1_48KHZ 0x6 +#define TAS2770_TDM_CFG_REG0_31_88_2_96KHZ 0x8 +#define TAS2770_TDM_CFG_REG0_31_176_4_192KHZ 0xa

• /* TDM Configuration Reg1 */

+#define TAS2770_TDM_CFG_REG1 TAS2770_REG(0X0, 0x0B) +#define TAS2770_TDM_CFG_REG1_MASK 0x3e +#define TAS2770_TDM_CFG_REG1_51_SHIFT 1 +#define TAS2770_TDM_CFG_REG1_RX_MASK BIT(0) +#define TAS2770_TDM_CFG_REG1_RX_RSING 0x0 +#define TAS2770_TDM_CFG_REG1_RX_FALING BIT(0)

• /* TDM Configuration Reg2 */

+#define TAS2770_TDM_CFG_REG2 TAS2770_REG(0X0, 0x0C) +#define TAS2770_TDM_CFG_REG2_RXW_MASK 0xc +#define TAS2770_TDM_CFG_REG2_RXW_16BITS 0x0 +#define TAS2770_TDM_CFG_REG2_RXW_24BITS 0x8 +#define TAS2770_TDM_CFG_REG2_RXW_32BITS 0xc +#define TAS2770_TDM_CFG_REG2_RXS_MASK 0x3 +#define TAS2770_TDM_CFG_REG2_RXS_16BITS 0x0 +#define TAS2770_TDM_CFG_REG2_RXS_24BITS BIT(0) +#define TAS2770_TDM_CFG_REG2_RXS_32BITS 0x2

• /* TDM Configuration Reg3 */

+#define TAS2770_TDM_CFG_REG3 TAS2770_REG(0X0, 0x0D) +#define TAS2770_TDM_CFG_REG3_RXS_MASK 0xf0 +#define TAS2770_TDM_CFG_REG3_RXS_SHIFT 0x4 +#define TAS2770_TDM_CFG_REG3_30_MASK 0xf +#define TAS2770_TDM_CFG_REG3_30_SHIFT 0

• /* TDM Configuration Reg5 */

+#define TAS2770_TDM_CFG_REG5 TAS2770_REG(0X0, 0x0F) +#define TAS2770_TDM_CFG_REG5_VSNS_MASK BIT(6) +#define TAS2770_TDM_CFG_REG5_VSNS_ENABLE BIT(6) +#define TAS2770_TDM_CFG_REG5_50_MASK 0x3f

• /* TDM Configuration Reg6 */

+#define TAS2770_TDM_CFG_REG6 TAS2770_REG(0X0, 0x10) +#define TAS2770_TDM_CFG_REG6_ISNS_MASK BIT(6) +#define TAS2770_TDM_CFG_REG6_ISNS_ENABLE BIT(6) +#define TAS2770_TDM_CFG_REG6_50_MASK 0x3f

• /* Brown Out Prevention Reg0 */

+#define TAS2770_BO_PRV_REG0 TAS2770_REG(0X0, 0x1B)

• /* Interrupt MASK Reg0 */

+#define TAS2770_INT_MASK_REG0 TAS2770_REG(0X0, 0x20) +#define TAS2770_INT_MASK_REG0_DISABLE 0xff

• /* Interrupt MASK Reg1 */

+#define TAS2770_INT_MASK_REG1 TAS2770_REG(0X0, 0x21) +#define TAS2770_INT_MASK_REG1_DISABLE 0xff

• /* Live-Interrupt Reg0 */

+#define TAS2770_LVE_INT_REG0 TAS2770_REG(0X0, 0x22)

• /* Live-Interrupt Reg1 */

+#define TAS2770_LVE_INT_REG1 TAS2770_REG(0X0, 0x23)

• /* Latched-Interrupt Reg0 */

+#define TAS2770_LAT_INT_REG0 TAS2770_REG(0X0, 0x24) +#define TAS2770_LAT_INT_REG0_OCE_FLG BIT(1) +#define TAS2770_LAT_INT_REG0_OTE_FLG BIT(0)

• /* Latched-Interrupt Reg1 */

+#define TAS2770_LAT_INT_REG1 TAS2770_REG(0X0, 0x25) +#define TAS2770_LAT_INT_REG1_VBA_TOV BIT(3) +#define TAS2770_LAT_INT_REG1_VBA_TUV BIT(2) +#define TAS2770_LAT_INT_REG1_BOUT_FLG BIT(1)

• /* VBAT MSB */

+#define TAS2770_VBAT_MSB TAS2770_REG(0X0, 0x27)

• /* VBAT LSB */

+#define TAS2770_VBAT_LSB TAS2770_REG(0X0, 0x28)

• /* TEMP MSB */

+#define TAS2770_TEMP_MSB TAS2770_REG(0X0, 0x29)

• /* TEMP LSB */

+#define TAS2770_TEMP_LSB TAS2770_REG(0X0, 0x2A)

• /* Interrupt Configuration */

+#define TAS2770_INT_CFG TAS2770_REG(0X0, 0x30)

• /* Misc IRQ */

+#define TAS2770_MISC_IRQ TAS2770_REG(0X0, 0x32)

• /* Clock Configuration */

+#define TAS2770_CLK_CGF TAS2770_REG(0X0, 0x3C)

• /* TDM Clock detection monitor */

+#define TAS2770_TDM_CLK_DETC TAS2770_REG(0X0, 0x77)

• /* Revision and PG ID */

+#define TAS2770_REV_AND_GPID TAS2770_REG(0X0, 0x7D)

+#define TAS2770_POWER_ACTIVE 0 +#define TAS2770_POWER_MUTE 1 +#define TAS2770_POWER_SHUTDOWN 2 +#define ERROR_OVER_CURRENT 0x0000001 +#define ERROR_DIE_OVERTEMP 0x0000002 +#define ERROR_OVER_VOLTAGE 0x0000004 +#define ERROR_UNDER_VOLTAGE 0x0000008 +#define ERROR_BROWNOUT 0x0000010 +#define ERROR_CLASSD_PWR 0x0000020 +#define TAS2770_SLOT_16BIT 16 +#define TAS2770_SLOT_32BIT 32 +#define TAS2770_I2C_RETRY_COUNT 3 +#define ERROR_I2C_FAILED -2

+struct tas2770_register {

• int book;
• int page;
• int reg;

+};

+struct tas2770_dai_cfg {

• unsigned int dai_fmt;
• unsigned int tdm_delay;

+};

+struct tas2770_priv {

• struct device *dev;
• struct regmap *regmap;
• struct snd_soc_codec *codec;
• struct snd_soc_component *component;
• struct mutex dev_lock;
• struct hrtimer mtimer;
• int mn_clkin;
• int mn_clkid;
• int mn_power_state;
• int mn_current_book;
• int mn_current_page;
• int mn_load;
• int mn_asi_format;
• struct gpio_desc *mn_reset_gpio;
• int mn_irq;
• bool mb_irq_enable;
• int mn_sampling_rate;
• int mn_frame_size;
• int mn_pll;
• int mn_left_slot;
• int mn_right_slot;
• int mn_ch_size;
• int mn_slot_width;
• int mn_v_mon_slot_no;
• int mn_i_mon_slot_no;
• bool mb_runtime_suspend;
• unsigned int mn_err_code;
• struct mutex codec_lock;

+};

+#endif /* __TAS2770__ */