sound/soc/codecs/tlv320aic3x.c

Source file repositories/reference/linux-study-clean/sound/soc/codecs/tlv320aic3x.c

File Facts

System
Linux kernel
Corpus path
sound/soc/codecs/tlv320aic3x.c
Extension
.c
Size
63412 bytes
Lines
1858
Domain
Driver Families
Bucket
sound/soc
Inferred role
Driver Families: exported/initcall integration point
Status
integration implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct aic3x_disable_nb {
	struct notifier_block nb;
	struct aic3x_priv *aic3x;
};

struct aic3x_setup_data {
	unsigned int gpio_func[2];
};

/* codec private data */
struct aic3x_priv {
	struct snd_soc_component *component;
	struct regmap *regmap;
	struct regulator_bulk_data supplies[AIC3X_NUM_SUPPLIES];
	struct aic3x_disable_nb disable_nb[AIC3X_NUM_SUPPLIES];
	struct aic3x_setup_data *setup;
	unsigned int sysclk;
	unsigned int dai_fmt;
	unsigned int tdm_delay;
	unsigned int slot_width;
	int master;
	struct gpio_desc *gpio_reset;
	bool shared_reset;
	int power;
	u16 model;

	/* Selects the micbias voltage */
	enum aic3x_micbias_voltage micbias_vg;
	/* Output Common-Mode Voltage */
	u8 ocmv;
};

static const struct reg_default aic3x_reg[] = {
	{   0, 0x00 }, {   1, 0x00 }, {   2, 0x00 }, {   3, 0x10 },
	{   4, 0x04 }, {   5, 0x00 }, {   6, 0x00 }, {   7, 0x00 },
	{   8, 0x00 }, {   9, 0x00 }, {  10, 0x00 }, {  11, 0x01 },
	{  12, 0x00 }, {  13, 0x00 }, {  14, 0x00 }, {  15, 0x80 },
	{  16, 0x80 }, {  17, 0xff }, {  18, 0xff }, {  19, 0x78 },
	{  20, 0x78 }, {  21, 0x78 }, {  22, 0x78 }, {  23, 0x78 },
	{  24, 0x78 }, {  25, 0x00 }, {  26, 0x00 }, {  27, 0xfe },
	{  28, 0x00 }, {  29, 0x00 }, {  30, 0xfe }, {  31, 0x00 },
	{  32, 0x18 }, {  33, 0x18 }, {  34, 0x00 }, {  35, 0x00 },
	{  36, 0x00 }, {  37, 0x00 }, {  38, 0x00 }, {  39, 0x00 },
	{  40, 0x00 }, {  41, 0x00 }, {  42, 0x00 }, {  43, 0x80 },
	{  44, 0x80 }, {  45, 0x00 }, {  46, 0x00 }, {  47, 0x00 },
	{  48, 0x00 }, {  49, 0x00 }, {  50, 0x00 }, {  51, 0x04 },
	{  52, 0x00 }, {  53, 0x00 }, {  54, 0x00 }, {  55, 0x00 },
	{  56, 0x00 }, {  57, 0x00 }, {  58, 0x04 }, {  59, 0x00 },
	{  60, 0x00 }, {  61, 0x00 }, {  62, 0x00 }, {  63, 0x00 },
	{  64, 0x00 }, {  65, 0x04 }, {  66, 0x00 }, {  67, 0x00 },
	{  68, 0x00 }, {  69, 0x00 }, {  70, 0x00 }, {  71, 0x00 },
	{  72, 0x04 }, {  73, 0x00 }, {  74, 0x00 }, {  75, 0x00 },
	{  76, 0x00 }, {  77, 0x00 }, {  78, 0x00 }, {  79, 0x00 },
	{  80, 0x00 }, {  81, 0x00 }, {  82, 0x00 }, {  83, 0x00 },
	{  84, 0x00 }, {  85, 0x00 }, {  86, 0x00 }, {  87, 0x00 },
	{  88, 0x00 }, {  89, 0x00 }, {  90, 0x00 }, {  91, 0x00 },
	{  92, 0x00 }, {  93, 0x00 }, {  94, 0x00 }, {  95, 0x00 },
	{  96, 0x00 }, {  97, 0x00 }, {  98, 0x00 }, {  99, 0x00 },
	{ 100, 0x00 }, { 101, 0x00 }, { 102, 0x02 }, { 103, 0x00 },
	{ 104, 0x00 }, { 105, 0x00 }, { 106, 0x00 }, { 107, 0x00 },
	{ 108, 0x00 }, { 109, 0x00 },
};

static const struct reg_sequence aic3007_class_d[] = {
	/* Class-D speaker driver init; datasheet p. 46 */
	{ AIC3X_PAGE_SELECT, 0x0D },
	{ 0xD, 0x0D },
	{ 0x8, 0x5C },
	{ 0x8, 0x5D },
	{ 0x8, 0x5C },
	{ AIC3X_PAGE_SELECT, 0x00 },
};

static bool aic3x_volatile_reg(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case AIC3X_RESET:
		return true;
	default:
		return false;
	}
}

const struct regmap_config aic3x_regmap = {
	.max_register = DAC_ICC_ADJ,
	.reg_defaults = aic3x_reg,
	.num_reg_defaults = ARRAY_SIZE(aic3x_reg),

	.volatile_reg = aic3x_volatile_reg,

Annotation

Implementation Notes