sound/pci/ca0106/ca0106_main.c

File Facts

System

Linux kernel

Corpus path

sound/pci/ca0106/ca0106_main.c

Extension

.c

Size

56194 bytes

Lines

1839

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/module.h
• linux/dma-mapping.h
• sound/core.h
• sound/initval.h
• sound/pcm.h
• sound/ac97_codec.h
• sound/info.h
• ca0106.h

Detected Declarations

• function snd_ca0106_ptr_read
• function snd_ca0106_ptr_write
• function snd_ca0106_spi_write
• function snd_ca0106_i2c_write
• function snd_ca0106_intr_enable
• function snd_ca0106_intr_disable
• function snd_ca0106_pcm_free_substream
• function restore_spdif_bits
• function snd_ca0106_channel_dac
• function snd_ca0106_pcm_power_dac
• function snd_ca0106_pcm_open_playback_channel
• function snd_ca0106_pcm_close_playback
• function snd_ca0106_pcm_open_playback_front
• function snd_ca0106_pcm_open_playback_center_lfe
• function snd_ca0106_pcm_open_playback_unknown
• function snd_ca0106_pcm_open_playback_rear
• function snd_ca0106_pcm_open_capture_channel
• function snd_ca0106_pcm_close_capture
• function snd_ca0106_pcm_open_0_capture
• function snd_ca0106_pcm_open_1_capture
• function snd_ca0106_pcm_open_2_capture
• function snd_ca0106_pcm_open_3_capture
• function snd_ca0106_pcm_prepare_playback
• function snd_ca0106_pcm_prepare_capture
• function snd_ca0106_pcm_trigger_playback
• function snd_pcm_group_for_each_entry
• function snd_ca0106_pcm_trigger_capture
• function snd_ca0106_pcm_pointer_playback
• function snd_ca0106_pcm_pointer_capture
• function snd_ca0106_ac97_read
• function snd_ca0106_ac97_write
• function snd_ca0106_ac97
• function snd_ca0106_free
• function snd_ca0106_interrupt
• function snd_ca0106_pcm
• function ca0106_init_chip
• function ca0106_stop_chip
• function snd_ca0106_create
• function ca0106_midi_interrupt_enable
• function ca0106_midi_interrupt_disable
• function ca0106_midi_read
• function ca0106_midi_write
• function ca0106_dev_id_port
• function snd_ca0106_midi
• function __snd_ca0106_probe
• function snd_ca0106_probe
• function snd_ca0106_suspend
• function snd_ca0106_resume

Annotated Snippet

static struct pci_driver ca0106_driver = {
	.name = KBUILD_MODNAME,
	.id_table = snd_ca0106_ids,
	.probe = snd_ca0106_probe,
	.driver = {
		.pm = SND_CA0106_PM_OPS,
	},
};

module_pci_driver(ca0106_driver);

Annotation

• Immediate include surface: `linux/delay.h`, `linux/init.h`, `linux/interrupt.h`, `linux/pci.h`, `linux/slab.h`, `linux/module.h`, `linux/dma-mapping.h`, `sound/core.h`.
• Detected declarations: `function snd_ca0106_ptr_read`, `function snd_ca0106_ptr_write`, `function snd_ca0106_spi_write`, `function snd_ca0106_i2c_write`, `function snd_ca0106_intr_enable`, `function snd_ca0106_intr_disable`, `function snd_ca0106_pcm_free_substream`, `function restore_spdif_bits`, `function snd_ca0106_channel_dac`, `function snd_ca0106_pcm_power_dac`.
• 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.