sound/soc/codecs/wm8400.h

File Facts

System

Linux kernel

Corpus path

sound/soc/codecs/wm8400.h

Extension

.h

Size

1890 bytes

Lines

55

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.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef _WM8400_CODEC_H
#define _WM8400_CODEC_H

#define WM8400_MCLK_DIV 0
#define WM8400_DACCLK_DIV 1
#define WM8400_ADCCLK_DIV 2
#define WM8400_BCLK_DIV 3

#define WM8400_MCLK_DIV_1 0x400
#define WM8400_MCLK_DIV_2 0x800

#define WM8400_DAC_CLKDIV_1    0x00
#define WM8400_DAC_CLKDIV_1_5  0x04
#define WM8400_DAC_CLKDIV_2    0x08
#define WM8400_DAC_CLKDIV_3    0x0c
#define WM8400_DAC_CLKDIV_4    0x10
#define WM8400_DAC_CLKDIV_5_5  0x14
#define WM8400_DAC_CLKDIV_6    0x18

#define WM8400_ADC_CLKDIV_1    0x00
#define WM8400_ADC_CLKDIV_1_5  0x20
#define WM8400_ADC_CLKDIV_2    0x40
#define WM8400_ADC_CLKDIV_3    0x60
#define WM8400_ADC_CLKDIV_4    0x80
#define WM8400_ADC_CLKDIV_5_5  0xa0
#define WM8400_ADC_CLKDIV_6    0xc0


#define WM8400_BCLK_DIV_1                       (0x0 << 1)
#define WM8400_BCLK_DIV_1_5                     (0x1 << 1)
#define WM8400_BCLK_DIV_2                       (0x2 << 1)
#define WM8400_BCLK_DIV_3                       (0x3 << 1)
#define WM8400_BCLK_DIV_4                       (0x4 << 1)
#define WM8400_BCLK_DIV_5_5                     (0x5 << 1)
#define WM8400_BCLK_DIV_6                       (0x6 << 1)
#define WM8400_BCLK_DIV_8                       (0x7 << 1)
#define WM8400_BCLK_DIV_11                      (0x8 << 1)
#define WM8400_BCLK_DIV_12                      (0x9 << 1)
#define WM8400_BCLK_DIV_16                      (0xA << 1)
#define WM8400_BCLK_DIV_22                      (0xB << 1)
#define WM8400_BCLK_DIV_24                      (0xC << 1)
#define WM8400_BCLK_DIV_32                      (0xD << 1)
#define WM8400_BCLK_DIV_44                      (0xE << 1)
#define WM8400_BCLK_DIV_48                      (0xF << 1)

#endif

Annotation

• 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.