sound/soc/codecs/da732x.c

Source file repositories/reference/linux-study-clean/sound/soc/codecs/da732x.c

File Facts

System: Linux kernel
Corpus path: sound/soc/codecs/da732x.c
Extension: .c
Size: 50858 bytes
Lines: 1569
Domain: Driver Families
Bucket: sound/soc
Inferred role: Driver Families: implementation source
Status: source 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.

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.
Allocates kernel memory; connect allocation flags and lifetime to context constraints.
Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

linux/module.h
linux/moduleparam.h
linux/init.h
linux/delay.h
linux/pm.h
linux/i2c.h
linux/regmap.h
linux/platform_device.h
linux/slab.h
linux/sysfs.h
sound/core.h
sound/pcm.h
sound/pcm_params.h
sound/soc.h
sound/soc-dapm.h
sound/initval.h
sound/tlv.h
asm/div64.h
da732x.h
da732x_reg.h

Detected Declarations

struct da732x_priv
function da732x_get_input_div
function da732x_set_charge_pump
function da732x_hpf_set
function da732x_hpf_get
function da732x_adc_event
function da732x_out_pga_event
function da732x_hw_params
function da732x_set_dai_fmt
function da732x_set_dai_pll
function da732x_set_dai_sysclk
function da732x_volatile
function da732x_dac_offset_adjust
function da732x_output_offset_adjust
function da732x_hp_dc_offset_cancellation
function da732x_set_bias_level
function da732x_i2c_probe

Annotated Snippet

struct da732x_priv {
	struct regmap *regmap;

	unsigned int sysclk;
	bool pll_en;
};

/*
 * da732x register cache - default settings
 */
static const struct reg_default da732x_reg_cache[] = {
	{ DA732X_REG_REF1		, 0x02 },
	{ DA732X_REG_BIAS_EN		, 0x80 },
	{ DA732X_REG_BIAS1		, 0x00 },
	{ DA732X_REG_BIAS2		, 0x00 },
	{ DA732X_REG_BIAS3		, 0x00 },
	{ DA732X_REG_BIAS4		, 0x00 },
	{ DA732X_REG_MICBIAS2		, 0x00 },
	{ DA732X_REG_MICBIAS1		, 0x00 },
	{ DA732X_REG_MICDET		, 0x00 },
	{ DA732X_REG_MIC1_PRE		, 0x01 },
	{ DA732X_REG_MIC1		, 0x40 },
	{ DA732X_REG_MIC2_PRE		, 0x01 },
	{ DA732X_REG_MIC2		, 0x40 },
	{ DA732X_REG_AUX1L		, 0x75 },
	{ DA732X_REG_AUX1R		, 0x75 },
	{ DA732X_REG_MIC3_PRE		, 0x01 },
	{ DA732X_REG_MIC3		, 0x40 },
	{ DA732X_REG_INP_PINBIAS	, 0x00 },
	{ DA732X_REG_INP_ZC_EN		, 0x00 },
	{ DA732X_REG_INP_MUX		, 0x50 },
	{ DA732X_REG_HP_DET		, 0x00 },
	{ DA732X_REG_HPL_DAC_OFFSET	, 0x00 },
	{ DA732X_REG_HPL_DAC_OFF_CNTL	, 0x00 },
	{ DA732X_REG_HPL_OUT_OFFSET	, 0x00 },
	{ DA732X_REG_HPL		, 0x40 },
	{ DA732X_REG_HPL_VOL		, 0x0F },
	{ DA732X_REG_HPR_DAC_OFFSET	, 0x00 },
	{ DA732X_REG_HPR_DAC_OFF_CNTL	, 0x00 },
	{ DA732X_REG_HPR_OUT_OFFSET	, 0x00 },
	{ DA732X_REG_HPR		, 0x40 },
	{ DA732X_REG_HPR_VOL		, 0x0F },
	{ DA732X_REG_LIN2		, 0x4F },
	{ DA732X_REG_LIN3		, 0x4F },
	{ DA732X_REG_LIN4		, 0x4F },
	{ DA732X_REG_OUT_ZC_EN		, 0x00 },
	{ DA732X_REG_HP_LIN1_GNDSEL	, 0x00 },
	{ DA732X_REG_CP_HP1		, 0x0C },
	{ DA732X_REG_CP_HP2		, 0x03 },
	{ DA732X_REG_CP_CTRL1		, 0x00 },
	{ DA732X_REG_CP_CTRL2		, 0x99 },
	{ DA732X_REG_CP_CTRL3		, 0x25 },
	{ DA732X_REG_CP_LEVEL_MASK	, 0x3F },
	{ DA732X_REG_CP_DET		, 0x00 },
	{ DA732X_REG_CP_STATUS		, 0x00 },
	{ DA732X_REG_CP_THRESH1		, 0x00 },
	{ DA732X_REG_CP_THRESH2		, 0x00 },
	{ DA732X_REG_CP_THRESH3		, 0x00 },
	{ DA732X_REG_CP_THRESH4		, 0x00 },
	{ DA732X_REG_CP_THRESH5		, 0x00 },
	{ DA732X_REG_CP_THRESH6		, 0x00 },
	{ DA732X_REG_CP_THRESH7		, 0x00 },
	{ DA732X_REG_CP_THRESH8		, 0x00 },
	{ DA732X_REG_PLL_DIV_LO		, 0x00 },
	{ DA732X_REG_PLL_DIV_MID	, 0x00 },
	{ DA732X_REG_PLL_DIV_HI		, 0x00 },
	{ DA732X_REG_PLL_CTRL		, 0x02 },
	{ DA732X_REG_CLK_CTRL		, 0xaa },
	{ DA732X_REG_CLK_DSP		, 0x07 },
	{ DA732X_REG_CLK_EN1		, 0x00 },
	{ DA732X_REG_CLK_EN2		, 0x00 },
	{ DA732X_REG_CLK_EN3		, 0x00 },
	{ DA732X_REG_CLK_EN4		, 0x00 },
	{ DA732X_REG_CLK_EN5		, 0x00 },
	{ DA732X_REG_AIF_MCLK		, 0x00 },
	{ DA732X_REG_AIFA1		, 0x02 },
	{ DA732X_REG_AIFA2		, 0x00 },
	{ DA732X_REG_AIFA3		, 0x08 },
	{ DA732X_REG_AIFB1		, 0x02 },
	{ DA732X_REG_AIFB2		, 0x00 },
	{ DA732X_REG_AIFB3		, 0x08 },
	{ DA732X_REG_PC_CTRL		, 0xC0 },
	{ DA732X_REG_DATA_ROUTE		, 0x00 },
	{ DA732X_REG_DSP_CTRL		, 0x00 },
	{ DA732X_REG_CIF_CTRL2		, 0x00 },
	{ DA732X_REG_HANDSHAKE		, 0x00 },
	{ DA732X_REG_SPARE1_OUT		, 0x00 },
	{ DA732X_REG_SPARE2_OUT		, 0x00 },
	{ DA732X_REG_SPARE1_IN		, 0x00 },
	{ DA732X_REG_ADC1_PD		, 0x00 },

Annotation

Immediate include surface: `linux/module.h`, `linux/moduleparam.h`, `linux/init.h`, `linux/delay.h`, `linux/pm.h`, `linux/i2c.h`, `linux/regmap.h`, `linux/platform_device.h`.
Detected declarations: `struct da732x_priv`, `function da732x_get_input_div`, `function da732x_set_charge_pump`, `function da732x_hpf_set`, `function da732x_hpf_get`, `function da732x_adc_event`, `function da732x_out_pga_event`, `function da732x_hw_params`, `function da732x_set_dai_fmt`, `function da732x_set_dai_pll`.
Atlas domain: Driver Families / sound/soc.
Implementation status: source implementation candidate.

Implementation Notes

This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.