sound/soc/codecs/hdac_hdmi.c

File Facts

System

Linux kernel

Corpus path

sound/soc/codecs/hdac_hdmi.c

Extension

.c

Size

52503 bytes

Lines

2051

Domain

Driver Families

Bucket

sound/soc

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.
• 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/delay.h
• linux/module.h
• linux/pm_runtime.h
• linux/hdmi.h
• drm/drm_edid.h
• drm/drm_eld.h
• sound/pcm_params.h
• sound/jack.h
• sound/soc.h
• sound/hdaudio_ext.h
• sound/hda_i915.h
• sound/pcm_drm_eld.h
• sound/hda_chmap.h

Detected Declarations

• struct hdac_hdmi_cvt_params
• struct hdac_hdmi_cvt
• struct hdac_hdmi_parsed_eld
• struct hdac_hdmi_eld
• struct hdac_hdmi_pin
• struct hdac_hdmi_port
• struct hdac_hdmi_pcm
• struct hdac_hdmi_dai_port_map
• struct hdac_hdmi_drv_data
• struct hdac_hdmi_priv
• struct dp_audio_infoframe
• function hdac_hdmi_get_pcm_from_cvt
• function list_for_each_entry
• function hdac_hdmi_jack_report
• function hdac_hdmi_port_dapm_update
• function hdac_hdmi_jack_dapm_work
• function hdac_hdmi_jack_report_sync
• function hdac_hdmi_get_port_len
• function hdac_hdmi_port_select_get
• function hdac_hdmi_port_select_set
• function list_for_each_entry
• function sad_format
• function sad_sample_bits_lpcm
• function hdac_hdmi_eld_limit_formats
• function hdac_hdmi_set_dip_index
• function hdac_hdmi_setup_audio_infoframe
• function hdac_hdmi_set_stream
• function hdac_hdmi_set_hw_params
• function hdac_hdmi_query_port_connlist
• function list_for_each_entry
• function list_for_each_entry
• function hdac_hdmi_verify_connect_sel_all_pins
• function list_for_each_entry
• function hdac_hdmi_pcm_open
• function hdac_hdmi_pcm_close
• function hdac_hdmi_query_cvt_params
• function hdac_hdmi_fill_widget_info
• function hdac_hdmi_fill_route
• function list_for_each_entry
• function list_for_each_entry
• function hdac_hdmi_set_power_state
• function hdac_hdmi_set_amp
• function hdac_hdmi_pin_output_widget_event
• function hdac_hdmi_cvt_output_widget_event
• function hdac_hdmi_pin_mux_widget_event
• function hdac_hdmi_set_pin_port_mux
• function list_for_each_entry_safe
• function hdac_hdmi_create_pin_port_muxs

Annotated Snippet

module_init(hdmi_init);
module_exit(hdmi_exit);

MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("HDMI HD codec");
MODULE_AUTHOR("Samreen Nilofer<samreen.nilofer@intel.com>");
MODULE_AUTHOR("Subhransu S. Prusty<subhransu.s.prusty@intel.com>");

Annotation

• Immediate include surface: `linux/init.h`, `linux/delay.h`, `linux/module.h`, `linux/pm_runtime.h`, `linux/hdmi.h`, `drm/drm_edid.h`, `drm/drm_eld.h`, `sound/pcm_params.h`.
• Detected declarations: `struct hdac_hdmi_cvt_params`, `struct hdac_hdmi_cvt`, `struct hdac_hdmi_parsed_eld`, `struct hdac_hdmi_eld`, `struct hdac_hdmi_pin`, `struct hdac_hdmi_port`, `struct hdac_hdmi_pcm`, `struct hdac_hdmi_dai_port_map`, `struct hdac_hdmi_drv_data`, `struct hdac_hdmi_priv`.
• Atlas domain: Driver Families / sound/soc.
• Implementation status: integration implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

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.