sound/pci/sis7019.c

File Facts

System

Linux kernel

Corpus path

sound/pci/sis7019.c

Extension

.c

Size

38169 bytes

Lines

1383

Domain

Driver Families

Bucket

sound/pci

Inferred role

Driver Families: operation-table or driver-model contract

Status

pattern 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.
• Defines an operation table; this is where Linux turns generic core objects into subsystem-specific behavior.
• 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.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/init.h
• linux/pci.h
• linux/time.h
• linux/slab.h
• linux/module.h
• linux/interrupt.h
• linux/delay.h
• sound/core.h
• sound/ac97_codec.h
• sound/initval.h
• sis7019.h

Detected Declarations

• struct voice
• struct sis7019
• function sis_update_sso
• function sis_update_voice
• function sis_voice_irq
• function sis_interrupt
• function sis_rate_to_delta
• function __sis_map_silence
• function __sis_unmap_silence
• function sis_free_voice
• function sis_alloc_timing_voice
• function sis_playback_open
• function sis_substream_close
• function sis_pcm_playback_prepare
• function sis_pcm_trigger
• function snd_pcm_group_for_each_entry
• function sis_pcm_pointer
• function sis_capture_open
• function sis_capture_hw_params
• function sis_prepare_timing_voice
• function sis_pcm_capture_prepare
• function sis_pcm_create
• function sis_ac97_rw
• function sis_ac97_write
• function sis_ac97_read
• function sis_mixer_create
• function sis_chip_free
• function sis_chip_init
• function sis_suspend
• function sis_resume
• function sis_alloc_suspend
• function sis_chip_create
• function __snd_sis7019_probe
• function snd_sis7019_probe

Annotated Snippet

static struct pci_driver sis7019_driver = {
	.name = KBUILD_MODNAME,
	.id_table = snd_sis7019_ids,
	.probe = snd_sis7019_probe,
	.driver = {
		.pm = &sis_pm,
	},
};

module_pci_driver(sis7019_driver);

Annotation

• Immediate include surface: `linux/init.h`, `linux/pci.h`, `linux/time.h`, `linux/slab.h`, `linux/module.h`, `linux/interrupt.h`, `linux/delay.h`, `sound/core.h`.
• Detected declarations: `struct voice`, `struct sis7019`, `function sis_update_sso`, `function sis_update_voice`, `function sis_voice_irq`, `function sis_interrupt`, `function sis_rate_to_delta`, `function __sis_map_silence`, `function __sis_unmap_silence`, `function sis_free_voice`.
• Atlas domain: Driver Families / sound/pci.
• Implementation status: pattern 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.