sound/soc/codecs/max98095.c

File Facts

System

Linux kernel

Corpus path

sound/soc/codecs/max98095.c

Extension

.c

Size

63854 bytes

Lines

2168

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.

• 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Touches IRQ or DMA behavior; this matters for the representative real-device path.
• 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/kernel.h
• linux/init.h
• linux/delay.h
• linux/pm.h
• linux/i2c.h
• linux/clk.h
• linux/mutex.h
• sound/core.h
• sound/pcm.h
• sound/pcm_params.h
• sound/soc.h
• sound/initval.h
• sound/tlv.h
• linux/slab.h
• asm/div64.h
• sound/max98095.h
• sound/jack.h
• max98095.h

Detected Declarations

• struct max98095_cdata
• struct max98095_priv
• enum max98095_type
• function max98095_readable
• function max98095_writeable
• function max98095_volatile
• function m98095_eq_band
• function m98095_biquad_band
• function max98095_mic1pre_set
• function max98095_mic1pre_get
• function max98095_mic2pre_set
• function max98095_mic2pre_get
• function max98095_mic_event
• function max98095_line_pga
• function max98095_pga_in1_event
• function max98095_pga_in2_event
• function max98095_lineout_event
• function rate_value
• function max98095_dai1_hw_params
• function max98095_dai2_hw_params
• function max98095_dai3_hw_params
• function max98095_dai_set_sysclk
• function max98095_dai1_set_fmt
• function max98095_dai2_set_fmt
• function max98095_dai3_set_fmt
• function max98095_set_bias_level
• function max98095_get_eq_channel
• function max98095_put_eq_enum
• function max98095_get_eq_enum
• function max98095_handle_eq_pdata
• function max98095_get_bq_channel
• function max98095_put_bq_enum
• function max98095_get_bq_enum
• function max98095_handle_bq_pdata
• function max98095_handle_pdata
• function max98095_report_jack
• function max98095_jack_detect_enable
• function max98095_jack_detect_disable
• function max98095_jack_detect
• function max98095_suspend
• function max98095_resume
• function max98095_reset
• function max98095_probe
• function max98095_remove
• function max98095_i2c_probe
• export max98095_jack_detect

Annotated Snippet

struct max98095_cdata {
	unsigned int rate;
	unsigned int fmt;
	int eq_sel;
	int bq_sel;
};

struct max98095_priv {
	struct regmap *regmap;
	enum max98095_type devtype;
	struct max98095_pdata *pdata;
	struct clk *mclk;
	unsigned int sysclk;
	struct max98095_cdata dai[3];
	const char **eq_texts;
	const char **bq_texts;
	struct soc_enum eq_enum;
	struct soc_enum bq_enum;
	int eq_textcnt;
	int bq_textcnt;
	u8 lin_state;
	unsigned int mic1pre;
	unsigned int mic2pre;
	struct snd_soc_jack *headphone_jack;
	struct snd_soc_jack *mic_jack;
	struct mutex lock;
};

static const struct reg_default max98095_reg_def[] = {
	{  0xf, 0x00 }, /* 0F */
	{ 0x10, 0x00 }, /* 10 */
	{ 0x11, 0x00 }, /* 11 */
	{ 0x12, 0x00 }, /* 12 */
	{ 0x13, 0x00 }, /* 13 */
	{ 0x14, 0x00 }, /* 14 */
	{ 0x15, 0x00 }, /* 15 */
	{ 0x16, 0x00 }, /* 16 */
	{ 0x17, 0x00 }, /* 17 */
	{ 0x18, 0x00 }, /* 18 */
	{ 0x19, 0x00 }, /* 19 */
	{ 0x1a, 0x00 }, /* 1A */
	{ 0x1b, 0x00 }, /* 1B */
	{ 0x1c, 0x00 }, /* 1C */
	{ 0x1d, 0x00 }, /* 1D */
	{ 0x1e, 0x00 }, /* 1E */
	{ 0x1f, 0x00 }, /* 1F */
	{ 0x20, 0x00 }, /* 20 */
	{ 0x21, 0x00 }, /* 21 */
	{ 0x22, 0x00 }, /* 22 */
	{ 0x23, 0x00 }, /* 23 */
	{ 0x24, 0x00 }, /* 24 */
	{ 0x25, 0x00 }, /* 25 */
	{ 0x26, 0x00 }, /* 26 */
	{ 0x27, 0x00 }, /* 27 */
	{ 0x28, 0x00 }, /* 28 */
	{ 0x29, 0x00 }, /* 29 */
	{ 0x2a, 0x00 }, /* 2A */
	{ 0x2b, 0x00 }, /* 2B */
	{ 0x2c, 0x00 }, /* 2C */
	{ 0x2d, 0x00 }, /* 2D */
	{ 0x2e, 0x00 }, /* 2E */
	{ 0x2f, 0x00 }, /* 2F */
	{ 0x30, 0x00 }, /* 30 */
	{ 0x31, 0x00 }, /* 31 */
	{ 0x32, 0x00 }, /* 32 */
	{ 0x33, 0x00 }, /* 33 */
	{ 0x34, 0x00 }, /* 34 */
	{ 0x35, 0x00 }, /* 35 */
	{ 0x36, 0x00 }, /* 36 */
	{ 0x37, 0x00 }, /* 37 */
	{ 0x38, 0x00 }, /* 38 */
	{ 0x39, 0x00 }, /* 39 */
	{ 0x3a, 0x00 }, /* 3A */
	{ 0x3b, 0x00 }, /* 3B */
	{ 0x3c, 0x00 }, /* 3C */
	{ 0x3d, 0x00 }, /* 3D */
	{ 0x3e, 0x00 }, /* 3E */
	{ 0x3f, 0x00 }, /* 3F */
	{ 0x40, 0x00 }, /* 40 */
	{ 0x41, 0x00 }, /* 41 */
	{ 0x42, 0x00 }, /* 42 */
	{ 0x43, 0x00 }, /* 43 */
	{ 0x44, 0x00 }, /* 44 */
	{ 0x45, 0x00 }, /* 45 */
	{ 0x46, 0x00 }, /* 46 */
	{ 0x47, 0x00 }, /* 47 */
	{ 0x48, 0x00 }, /* 48 */
	{ 0x49, 0x00 }, /* 49 */
	{ 0x4a, 0x00 }, /* 4A */
	{ 0x4b, 0x00 }, /* 4B */

Annotation

• Immediate include surface: `linux/module.h`, `linux/moduleparam.h`, `linux/kernel.h`, `linux/init.h`, `linux/delay.h`, `linux/pm.h`, `linux/i2c.h`, `linux/clk.h`.
• Detected declarations: `struct max98095_cdata`, `struct max98095_priv`, `enum max98095_type`, `function max98095_readable`, `function max98095_writeable`, `function max98095_volatile`, `function m98095_eq_band`, `function m98095_biquad_band`, `function max98095_mic1pre_set`, `function max98095_mic1pre_get`.
• Atlas domain: Driver Families / sound/soc.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.
• IRQ or DMA behavior appears here, which is relevant to the selected PCIe/NVMe device path.

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.