sound/soc/codecs/wm8904.h

Source file repositories/reference/linux-study-clean/sound/soc/codecs/wm8904.h

File Facts

System: Linux kernel
Corpus path: sound/soc/codecs/wm8904.h
Extension: .h
Size: 91655 bytes
Lines: 1591
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 _WM8904_H
#define _WM8904_H

#define WM8904_CLK_AUTO 0
#define WM8904_CLK_MCLK 1
#define WM8904_CLK_FLL  2

#define WM8904_FLL_MCLK          1
#define WM8904_FLL_BCLK          2
#define WM8904_FLL_LRCLK         3
#define WM8904_FLL_FREE_RUNNING  4

/*
 * Register values.
 */
#define WM8904_SW_RESET_AND_ID                  0x00
#define WM8904_REVISION				0x01
#define WM8904_BIAS_CONTROL_0                   0x04
#define WM8904_VMID_CONTROL_0                   0x05
#define WM8904_MIC_BIAS_CONTROL_0               0x06
#define WM8904_MIC_BIAS_CONTROL_1               0x07
#define WM8904_ANALOGUE_DAC_0                   0x08
#define WM8904_MIC_FILTER_CONTROL               0x09
#define WM8904_ANALOGUE_ADC_0                   0x0A
#define WM8904_POWER_MANAGEMENT_0               0x0C
#define WM8904_POWER_MANAGEMENT_2               0x0E
#define WM8904_POWER_MANAGEMENT_3               0x0F
#define WM8904_POWER_MANAGEMENT_6               0x12
#define WM8904_CLOCK_RATES_0                    0x14
#define WM8904_CLOCK_RATES_1                    0x15
#define WM8904_CLOCK_RATES_2                    0x16
#define WM8904_AUDIO_INTERFACE_0                0x18
#define WM8904_AUDIO_INTERFACE_1                0x19
#define WM8904_AUDIO_INTERFACE_2                0x1A
#define WM8904_AUDIO_INTERFACE_3                0x1B
#define WM8904_DAC_DIGITAL_VOLUME_LEFT          0x1E
#define WM8904_DAC_DIGITAL_VOLUME_RIGHT         0x1F
#define WM8904_DAC_DIGITAL_0                    0x20
#define WM8904_DAC_DIGITAL_1                    0x21
#define WM8904_ADC_DIGITAL_VOLUME_LEFT          0x24
#define WM8904_ADC_DIGITAL_VOLUME_RIGHT         0x25
#define WM8904_ADC_DIGITAL_0                    0x26
#define WM8904_DIGITAL_MICROPHONE_0             0x27
#define WM8904_DRC_0                            0x28
#define WM8904_DRC_1                            0x29
#define WM8904_DRC_2                            0x2A
#define WM8904_DRC_3                            0x2B
#define WM8904_ANALOGUE_LEFT_INPUT_0            0x2C
#define WM8904_ANALOGUE_RIGHT_INPUT_0           0x2D
#define WM8904_ANALOGUE_LEFT_INPUT_1            0x2E
#define WM8904_ANALOGUE_RIGHT_INPUT_1           0x2F
#define WM8904_ANALOGUE_OUT1_LEFT               0x39
#define WM8904_ANALOGUE_OUT1_RIGHT              0x3A
#define WM8904_ANALOGUE_OUT2_LEFT               0x3B
#define WM8904_ANALOGUE_OUT2_RIGHT              0x3C
#define WM8904_ANALOGUE_OUT12_ZC                0x3D
#define WM8904_DC_SERVO_0                       0x43
#define WM8904_DC_SERVO_1                       0x44
#define WM8904_DC_SERVO_2                       0x45
#define WM8904_DC_SERVO_4                       0x47
#define WM8904_DC_SERVO_5                       0x48
#define WM8904_DC_SERVO_6                       0x49
#define WM8904_DC_SERVO_7                       0x4A
#define WM8904_DC_SERVO_8                       0x4B
#define WM8904_DC_SERVO_9                       0x4C
#define WM8904_DC_SERVO_READBACK_0              0x4D
#define WM8904_ANALOGUE_HP_0                    0x5A
#define WM8904_ANALOGUE_LINEOUT_0               0x5E
#define WM8904_CHARGE_PUMP_0                    0x62
#define WM8904_CLASS_W_0                        0x68
#define WM8904_WRITE_SEQUENCER_0                0x6C
#define WM8904_WRITE_SEQUENCER_1                0x6D
#define WM8904_WRITE_SEQUENCER_2                0x6E
#define WM8904_WRITE_SEQUENCER_3                0x6F
#define WM8904_WRITE_SEQUENCER_4                0x70
#define WM8904_FLL_CONTROL_1                    0x74
#define WM8904_FLL_CONTROL_2                    0x75
#define WM8904_FLL_CONTROL_3                    0x76
#define WM8904_FLL_CONTROL_4                    0x77
#define WM8904_FLL_CONTROL_5                    0x78
#define WM8904_GPIO_CONTROL_1                   0x79
#define WM8904_GPIO_CONTROL_2                   0x7A
#define WM8904_GPIO_CONTROL_3                   0x7B
#define WM8904_GPIO_CONTROL_4                   0x7C
#define WM8904_DIGITAL_PULLS                    0x7E
#define WM8904_INTERRUPT_STATUS                 0x7F
#define WM8904_INTERRUPT_STATUS_MASK            0x80
#define WM8904_INTERRUPT_POLARITY               0x81
#define WM8904_INTERRUPT_DEBOUNCE               0x82
#define WM8904_EQ1                              0x86

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.