sound/soc/codecs/wm9081.h

Source file repositories/reference/linux-study-clean/sound/soc/codecs/wm9081.h

File Facts

System: Linux kernel
Corpus path: sound/soc/codecs/wm9081.h
Extension: .h
Size: 41438 bytes
Lines: 782
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

sound/soc.h

Detected Declarations

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

Annotated Snippet

#ifndef WM9081_H
#define WM9081_H

/*
 * wm9081.c  --  WM9081 ALSA SoC Audio driver
 *
 * Author: Mark Brown
 *
 * Copyright 2009 Wolfson Microelectronics plc
 */

#include <sound/soc.h>

/*
 * SYSCLK sources
 */
#define WM9081_SYSCLK_MCLK      1   /* Use MCLK without FLL */
#define WM9081_SYSCLK_FLL_MCLK  2   /* Use MCLK, enabling FLL if required */

/*
 * Register values.
 */
#define WM9081_SOFTWARE_RESET                   0x00
#define WM9081_ANALOGUE_LINEOUT                 0x02
#define WM9081_ANALOGUE_SPEAKER_PGA             0x03
#define WM9081_VMID_CONTROL                     0x04
#define WM9081_BIAS_CONTROL_1                   0x05
#define WM9081_ANALOGUE_MIXER                   0x07
#define WM9081_ANTI_POP_CONTROL                 0x08
#define WM9081_ANALOGUE_SPEAKER_1               0x09
#define WM9081_ANALOGUE_SPEAKER_2               0x0A
#define WM9081_POWER_MANAGEMENT                 0x0B
#define WM9081_CLOCK_CONTROL_1                  0x0C
#define WM9081_CLOCK_CONTROL_2                  0x0D
#define WM9081_CLOCK_CONTROL_3                  0x0E
#define WM9081_FLL_CONTROL_1                    0x10
#define WM9081_FLL_CONTROL_2                    0x11
#define WM9081_FLL_CONTROL_3                    0x12
#define WM9081_FLL_CONTROL_4                    0x13
#define WM9081_FLL_CONTROL_5                    0x14
#define WM9081_AUDIO_INTERFACE_1                0x16
#define WM9081_AUDIO_INTERFACE_2                0x17
#define WM9081_AUDIO_INTERFACE_3                0x18
#define WM9081_AUDIO_INTERFACE_4                0x19
#define WM9081_INTERRUPT_STATUS                 0x1A
#define WM9081_INTERRUPT_STATUS_MASK            0x1B
#define WM9081_INTERRUPT_POLARITY               0x1C
#define WM9081_INTERRUPT_CONTROL                0x1D
#define WM9081_DAC_DIGITAL_1                    0x1E
#define WM9081_DAC_DIGITAL_2                    0x1F
#define WM9081_DRC_1                            0x20
#define WM9081_DRC_2                            0x21
#define WM9081_DRC_3                            0x22
#define WM9081_DRC_4                            0x23
#define WM9081_WRITE_SEQUENCER_1                0x26
#define WM9081_WRITE_SEQUENCER_2                0x27
#define WM9081_MW_SLAVE_1                       0x28
#define WM9081_EQ_1                             0x2A
#define WM9081_EQ_2                             0x2B
#define WM9081_EQ_3                             0x2C
#define WM9081_EQ_4                             0x2D
#define WM9081_EQ_5                             0x2E
#define WM9081_EQ_6                             0x2F
#define WM9081_EQ_7                             0x30
#define WM9081_EQ_8                             0x31
#define WM9081_EQ_9                             0x32
#define WM9081_EQ_10                            0x33
#define WM9081_EQ_11                            0x34
#define WM9081_EQ_12                            0x35
#define WM9081_EQ_13                            0x36
#define WM9081_EQ_14                            0x37
#define WM9081_EQ_15                            0x38
#define WM9081_EQ_16                            0x39
#define WM9081_EQ_17                            0x3A
#define WM9081_EQ_18                            0x3B
#define WM9081_EQ_19                            0x3C
#define WM9081_EQ_20                            0x3D

#define WM9081_REGISTER_COUNT                   55
#define WM9081_MAX_REGISTER                     0x3D

/*
 * Field Definitions.
 */

/*
 * R0 (0x00) - Software Reset
 */
#define WM9081_SW_RST_DEV_ID1_MASK              0xFFFF  /* SW_RST_DEV_ID1 - [15:0] */
#define WM9081_SW_RST_DEV_ID1_SHIFT                  0  /* SW_RST_DEV_ID1 - [15:0] */

Annotation

Immediate include surface: `sound/soc.h`.
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.