sound/soc/codecs/wm8737.h

Source file repositories/reference/linux-study-clean/sound/soc/codecs/wm8737.h

File Facts

System: Linux kernel
Corpus path: sound/soc/codecs/wm8737.h
Extension: .h
Size: 17143 bytes
Lines: 320
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 _WM8737_H
#define _WM8737_H

/*
 * wm8737.c  --  WM8523 ALSA SoC Audio driver
 *
 * Copyright 2010 Wolfson Microelectronics plc
 *
 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
 */

/*
 * Register values.
 */
#define WM8737_LEFT_PGA_VOLUME                  0x00
#define WM8737_RIGHT_PGA_VOLUME                 0x01
#define WM8737_AUDIO_PATH_L                     0x02
#define WM8737_AUDIO_PATH_R                     0x03
#define WM8737_3D_ENHANCE                       0x04
#define WM8737_ADC_CONTROL                      0x05
#define WM8737_POWER_MANAGEMENT                 0x06
#define WM8737_AUDIO_FORMAT                     0x07
#define WM8737_CLOCKING                         0x08
#define WM8737_MIC_PREAMP_CONTROL               0x09
#define WM8737_MISC_BIAS_CONTROL                0x0A
#define WM8737_NOISE_GATE                       0x0B
#define WM8737_ALC1                             0x0C
#define WM8737_ALC2                             0x0D
#define WM8737_ALC3                             0x0E
#define WM8737_RESET                            0x0F

#define WM8737_REGISTER_COUNT                   16
#define WM8737_MAX_REGISTER                     0x0F

/*
 * Field Definitions.
 */

/*
 * R0 (0x00) - Left PGA volume
 */
#define WM8737_LVU                              0x0100  /* LVU */
#define WM8737_LVU_MASK                         0x0100  /* LVU */
#define WM8737_LVU_SHIFT                             8  /* LVU */
#define WM8737_LVU_WIDTH                             1  /* LVU */
#define WM8737_LINVOL_MASK                      0x00FF  /* LINVOL - [7:0] */
#define WM8737_LINVOL_SHIFT                          0  /* LINVOL - [7:0] */
#define WM8737_LINVOL_WIDTH                          8  /* LINVOL - [7:0] */

/*
 * R1 (0x01) - Right PGA volume
 */
#define WM8737_RVU                              0x0100  /* RVU */
#define WM8737_RVU_MASK                         0x0100  /* RVU */
#define WM8737_RVU_SHIFT                             8  /* RVU */
#define WM8737_RVU_WIDTH                             1  /* RVU */
#define WM8737_RINVOL_MASK                      0x00FF  /* RINVOL - [7:0] */
#define WM8737_RINVOL_SHIFT                          0  /* RINVOL - [7:0] */
#define WM8737_RINVOL_WIDTH                          8  /* RINVOL - [7:0] */

/*
 * R2 (0x02) - AUDIO path L
 */
#define WM8737_LINSEL_MASK                      0x0180  /* LINSEL - [8:7] */
#define WM8737_LINSEL_SHIFT                          7  /* LINSEL - [8:7] */
#define WM8737_LINSEL_WIDTH                          2  /* LINSEL - [8:7] */
#define WM8737_LMICBOOST_MASK                   0x0060  /* LMICBOOST - [6:5] */
#define WM8737_LMICBOOST_SHIFT                       5  /* LMICBOOST - [6:5] */
#define WM8737_LMICBOOST_WIDTH                       2  /* LMICBOOST - [6:5] */
#define WM8737_LMBE                             0x0010  /* LMBE */
#define WM8737_LMBE_MASK                        0x0010  /* LMBE */
#define WM8737_LMBE_SHIFT                            4  /* LMBE */
#define WM8737_LMBE_WIDTH                            1  /* LMBE */
#define WM8737_LMZC                             0x0008  /* LMZC */
#define WM8737_LMZC_MASK                        0x0008  /* LMZC */
#define WM8737_LMZC_SHIFT                            3  /* LMZC */
#define WM8737_LMZC_WIDTH                            1  /* LMZC */
#define WM8737_LPZC                             0x0004  /* LPZC */
#define WM8737_LPZC_MASK                        0x0004  /* LPZC */
#define WM8737_LPZC_SHIFT                            2  /* LPZC */
#define WM8737_LPZC_WIDTH                            1  /* LPZC */
#define WM8737_LZCTO_MASK                       0x0003  /* LZCTO - [1:0] */
#define WM8737_LZCTO_SHIFT                           0  /* LZCTO - [1:0] */
#define WM8737_LZCTO_WIDTH                           2  /* LZCTO - [1:0] */

/*
 * R3 (0x03) - AUDIO path R
 */
#define WM8737_RINSEL_MASK                      0x0180  /* RINSEL - [8:7] */
#define WM8737_RINSEL_SHIFT                          7  /* RINSEL - [8:7] */

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.