sound/pci/asihpi/asihpi.c

File Facts

System

Linux kernel

Corpus path

sound/pci/asihpi/asihpi.c

Extension

.c

Size

82692 bytes

Lines

2972

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.
• 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

• hpi_internal.h
• hpi_version.h
• hpimsginit.h
• hpioctl.h
• hpicmn.h
• linux/pci.h
• linux/init.h
• linux/jiffies.h
• linux/slab.h
• linux/time.h
• linux/wait.h
• linux/module.h
• sound/core.h
• sound/control.h
• sound/pcm.h
• sound/pcm_params.h
• sound/info.h
• sound/initval.h
• sound/tlv.h
• sound/hwdep.h

Detected Declarations

• struct clk_source
• struct clk_cache
• struct snd_card_asihpi
• struct snd_card_asihpi_pcm
• struct hpi_control
• function hpi_stream_host_buffer_attach
• function hpi_stream_host_buffer_detach
• function hpi_stream_start
• function hpi_stream_stop
• function hpi_stream_get_info_ex
• function hpi_stream_group_add
• function hpi_stream_group_reset
• function handle_error
• function print_hwparams
• function snd_card_asihpi_format_alsa2hpi
• function snd_card_asihpi_pcm_samplerates
• function snd_card_asihpi_pcm_hw_params
• function snd_card_asihpi_hw_free
• function snd_card_asihpi_runtime_free
• function snd_card_asihpi_pcm_timer_start
• function snd_card_asihpi_pcm_timer_stop
• function snd_card_asihpi_pcm_int_start
• function snd_card_asihpi_pcm_int_stop
• function snd_card_asihpi_trigger
• function snd_pcm_group_for_each_entry
• function snd_pcm_group_for_each_entry
• function modulo_min
• function snd_card_asihpi_timer_function
• function snd_pcm_group_for_each_entry
• function snd_card_asihpi_isr
• function snd_card_asihpi_playback_prepare
• function snd_card_asihpi_playback_pointer
• function snd_card_asihpi_playback_formats
• function snd_card_asihpi_playback_open
• function snd_card_asihpi_playback_close
• function snd_card_asihpi_capture_pointer
• function snd_card_asihpi_capture_prepare
• function snd_card_asihpi_capture_formats
• function snd_card_asihpi_capture_open
• function snd_card_asihpi_capture_close
• function snd_card_asihpi_pcm_new
• function ctl_add
• function asihpi_ctl_init
• function snd_asihpi_volume_info
• function snd_asihpi_volume_get
• function snd_asihpi_volume_put
• function snd_asihpi_volume_mute_get
• function snd_asihpi_volume_mute_put

Annotated Snippet

static struct pci_driver driver = {
	.name = KBUILD_MODNAME,
	.id_table = asihpi_pci_tbl,
	.probe = snd_asihpi_probe,
	.remove = snd_asihpi_remove,
};

static int __init snd_asihpi_init(void)
{
	asihpi_init();
	return pci_register_driver(&driver);
}

static void __exit snd_asihpi_exit(void)
{

	pci_unregister_driver(&driver);
	asihpi_exit();
}

module_init(snd_asihpi_init)
module_exit(snd_asihpi_exit)

Annotation

• Immediate include surface: `hpi_internal.h`, `hpi_version.h`, `hpimsginit.h`, `hpioctl.h`, `hpicmn.h`, `linux/pci.h`, `linux/init.h`, `linux/jiffies.h`.
• Detected declarations: `struct clk_source`, `struct clk_cache`, `struct snd_card_asihpi`, `struct snd_card_asihpi_pcm`, `struct hpi_control`, `function hpi_stream_host_buffer_attach`, `function hpi_stream_host_buffer_detach`, `function hpi_stream_start`, `function hpi_stream_stop`, `function hpi_stream_get_info_ex`.
• Atlas domain: Driver Families / sound/pci.
• Implementation status: pattern 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.