drivers/media/platform/qcom/iris/iris_hfi_gen1_defines.h

File Facts

System

Linux kernel

Corpus path

drivers/media/platform/qcom/iris/iris_hfi_gen1_defines.h

Extension

.h

Size

13241 bytes

Lines

601

Domain

Driver Families

Bucket

drivers/media

Inferred role

Driver Families: implementation source

Status

source 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 or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/types.h

Detected Declarations

• struct hfi_pkt_hdr
• struct hfi_session_hdr_pkt
• struct hfi_session_open_pkt
• struct hfi_session_pkt
• struct hfi_sys_init_pkt
• struct hfi_sys_set_property_pkt
• struct hfi_sys_get_property_pkt
• struct hfi_session_set_property_pkt
• struct hfi_sys_pc_prep_pkt
• struct hfi_session_set_buffers_pkt
• struct hfi_session_empty_buffer_compressed_pkt
• struct hfi_session_empty_buffer_uncompressed_pkt
• struct hfi_session_fill_buffer_pkt
• struct hfi_session_flush_pkt
• struct hfi_session_release_buffer_pkt
• struct hfi_buffer_info
• struct hfi_msg_event_notify_pkt
• struct hfi_msg_sys_init_done_pkt
• struct hfi_msg_session_hdr_pkt
• struct hfi_msg_session_init_done_pkt
• struct hfi_msg_sys_property_info_pkt
• struct hfi_msg_session_flush_done_pkt
• struct hfi_enable
• struct hfi_profile_level
• struct hfi_framesize
• struct hfi_videocores_usage_type
• struct hfi_video_work_mode
• struct hfi_video_work_route
• struct hfi_bit_depth
• struct hfi_pic_struct
• struct hfi_colour_space
• struct hfi_extradata_input_crop
• struct hfi_dpb_counts
• struct hfi_uncompressed_format_select
• struct hfi_uncompressed_plane_constraints
• struct hfi_uncompressed_plane_actual_constraints_info
• struct hfi_uncompressed_plane_actual
• struct hfi_uncompressed_plane_actual_info
• struct hfi_buffer_count_actual
• struct hfi_buffer_size_actual
• struct hfi_multi_stream
• struct hfi_buffer_requirements
• struct hfi_bitrate
• struct hfi_h264_entropy_control
• struct hfi_quantization_v2
• struct hfi_quantization_range_v2
• struct hfi_framerate
• struct hfi_intra_refresh

Annotated Snippet

struct hfi_pkt_hdr {
	u32 size;
	u32 pkt_type;
};

struct hfi_session_hdr_pkt {
	struct hfi_pkt_hdr hdr;
	u32 session_id;
};

struct hfi_session_open_pkt {
	struct hfi_session_hdr_pkt shdr;
	u32 session_domain;
	u32 session_codec;
};

struct hfi_session_pkt {
	struct hfi_session_hdr_pkt shdr;
};

struct hfi_sys_init_pkt {
	struct hfi_pkt_hdr hdr;
	u32 arch_type;
};

struct hfi_sys_set_property_pkt {
	struct hfi_pkt_hdr hdr;
	u32 num_properties;
	u32 data[];
};

struct hfi_sys_get_property_pkt {
	struct hfi_pkt_hdr hdr;
	u32 num_properties;
	u32 data;
};

struct hfi_session_set_property_pkt {
	struct hfi_session_hdr_pkt shdr;
	u32 num_properties;
	u32 data[];
};

struct hfi_sys_pc_prep_pkt {
	struct hfi_pkt_hdr hdr;
};

struct hfi_session_set_buffers_pkt {
	struct hfi_session_hdr_pkt shdr;
	u32 buffer_type;
	u32 buffer_size;
	u32 extradata_size;
	u32 min_buffer_size;
	u32 num_buffers;
	u32 buffer_info[];
};

struct hfi_session_empty_buffer_compressed_pkt {
	struct hfi_session_hdr_pkt shdr;
	u32 time_stamp_hi;
	u32 time_stamp_lo;
	u32 flags;
	u32 mark_target;
	u32 mark_data;
	u32 offset;
	u32 alloc_len;
	u32 filled_len;
	u32 input_tag;
	u32 packet_buffer;
	u32 extradata_buffer;
	u32 data;
};

struct hfi_session_empty_buffer_uncompressed_pkt {
	struct hfi_session_hdr_pkt shdr;
	u32 view_id;
	u32 time_stamp_hi;
	u32 time_stamp_lo;
	u32 flags;
	u32 mark_target;
	u32 mark_data;
	u32 alloc_len;
	u32 filled_len;
	u32 offset;
	u32 input_tag;
	u32 packet_buffer;
	u32 extradata_buffer;
	u32 data;
};

Annotation

• Immediate include surface: `linux/types.h`.
• Detected declarations: `struct hfi_pkt_hdr`, `struct hfi_session_hdr_pkt`, `struct hfi_session_open_pkt`, `struct hfi_session_pkt`, `struct hfi_sys_init_pkt`, `struct hfi_sys_set_property_pkt`, `struct hfi_sys_get_property_pkt`, `struct hfi_session_set_property_pkt`, `struct hfi_sys_pc_prep_pkt`, `struct hfi_session_set_buffers_pkt`.
• Atlas domain: Driver Families / drivers/media.
• Implementation status: source 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.