sound/pci/korg1212/korg1212.c

File Facts

System

Linux kernel

Corpus path

sound/pci/korg1212/korg1212.c

Extension

.c

Size

81319 bytes

Lines

2269

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/delay.h
• linux/init.h
• linux/interrupt.h
• linux/pci.h
• linux/slab.h
• linux/wait.h
• linux/module.h
• linux/mutex.h
• linux/firmware.h
• linux/io.h
• sound/core.h
• sound/info.h
• sound/control.h
• sound/pcm.h
• sound/pcm_params.h
• sound/initval.h

Detected Declarations

• struct KorgAudioFrame
• struct KorgAudioBuffer
• struct KorgSharedBuffer
• struct SensBits
• struct snd_korg1212
• enum CardState
• enum korg1212_dbcnst
• enum snd_korg1212rc
• enum PlayModeSelector
• enum MonitorModeSelector
• enum ClockSourceIndex
• enum ClockSourceType
• function snd_korg1212_Send1212Command
• function snd_korg1212_SendStop
• function snd_korg1212_SendStopAndWait
• function snd_korg1212_TurnOnIdleMonitor
• function snd_korg1212_TurnOffIdleMonitor
• function snd_korg1212_setCardState
• function snd_korg1212_OpenCard
• function snd_korg1212_CloseCard
• function snd_korg1212_SetupForPlay
• function snd_korg1212_TriggerPlay
• function snd_korg1212_StopPlay
• function snd_korg1212_EnableCardInterrupts
• function snd_korg1212_SetMonitorMode
• function snd_korg1212_use_is_exclusive
• function snd_korg1212_SetRate
• function snd_korg1212_SetClockSource
• function snd_korg1212_DisableCardInterrupts
• function snd_korg1212_WriteADCSensitivity
• function snd_korg1212_OnDSPDownloadComplete
• function snd_korg1212_interrupt
• function snd_korg1212_downloadDSPCode
• function snd_korg1212_silence
• function snd_korg1212_copy_to
• function snd_korg1212_copy_from
• function snd_korg1212_free_pcm
• function snd_korg1212_playback_open
• function scoped_guard
• function snd_korg1212_capture_open
• function scoped_guard
• function snd_korg1212_playback_close
• function scoped_guard
• function snd_korg1212_capture_close
• function scoped_guard
• function snd_korg1212_ioctl
• function snd_korg1212_hw_params
• function snd_korg1212_sync_stop

Annotated Snippet

static struct pci_driver korg1212_driver = {
	.name = KBUILD_MODNAME,
	.id_table = snd_korg1212_ids,
	.probe = snd_korg1212_probe,
};

module_pci_driver(korg1212_driver);

Annotation

• Immediate include surface: `linux/delay.h`, `linux/init.h`, `linux/interrupt.h`, `linux/pci.h`, `linux/slab.h`, `linux/wait.h`, `linux/module.h`, `linux/mutex.h`.
• Detected declarations: `struct KorgAudioFrame`, `struct KorgAudioBuffer`, `struct KorgSharedBuffer`, `struct SensBits`, `struct snd_korg1212`, `enum CardState`, `enum korg1212_dbcnst`, `enum snd_korg1212rc`, `enum PlayModeSelector`, `enum MonitorModeSelector`.
• 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.