sound/mips/snd-n64.c

File Facts

System

Linux kernel

Corpus path

sound/mips/snd-n64.c

Extension

.c

Size

8876 bytes

Lines

370

Domain

Driver Families

Bucket

sound/mips

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/dma-mapping.h
• linux/init.h
• linux/interrupt.h
• linux/io.h
• linux/log2.h
• linux/module.h
• linux/platform_device.h
• linux/spinlock.h
• linux/string.h
• sound/control.h
• sound/core.h
• sound/initval.h
• sound/pcm.h
• sound/pcm_params.h

Detected Declarations

• struct n64audio
• function n64audio_write_reg
• function n64mi_write_reg
• function n64mi_read_reg
• function n64audio_push
• function n64audio_isr
• function hw_rule_period_size
• function on
• function n64audio_pcm_open
• function n64audio_pcm_prepare
• function n64audio_pcm_trigger
• function n64audio_pcm_pointer
• function n64audio_pcm_close
• function n64audio_probe
• function n64audio_init
• module init n64audio_init

Annotated Snippet

module_init(n64audio_init);

Annotation

• Immediate include surface: `linux/dma-mapping.h`, `linux/init.h`, `linux/interrupt.h`, `linux/io.h`, `linux/log2.h`, `linux/module.h`, `linux/platform_device.h`, `linux/spinlock.h`.
• Detected declarations: `struct n64audio`, `function n64audio_write_reg`, `function n64mi_write_reg`, `function n64mi_read_reg`, `function n64audio_push`, `function n64audio_isr`, `function hw_rule_period_size`, `function on`, `function n64audio_pcm_open`, `function n64audio_pcm_prepare`.
• Atlas domain: Driver Families / sound/mips.
• 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.