drivers/media/platform/qcom/venus/hfi_parser.h

File Facts

System

Linux kernel

Corpus path

drivers/media/platform/qcom/venus/hfi_parser.h

Extension

.h

Size

2553 bytes

Lines

121

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

• core.h

Detected Declarations

• function get_cap
• function cap_min
• function cap_max
• function cap_step
• function frame_width_min
• function frame_width_max
• function frame_width_step
• function frame_height_min
• function frame_height_max
• function frame_height_step
• function frate_min
• function frate_max
• function frate_step
• function core_num_max
• function mbs_per_frame_max

Annotated Snippet

if (caps->caps[i].capability_type == type) {
			cap = &caps->caps[i];
			break;
		}
	}

	if (!cap)
		return 0;

	switch (which) {
	case WHICH_CAP_MIN:
		return cap->min;
	case WHICH_CAP_MAX:
		return cap->max;
	case WHICH_CAP_STEP:
		return cap->step_size;
	default:
		break;
	}

	return 0;
}

static inline u32 cap_min(struct venus_inst *inst, u32 type)
{
	return get_cap(inst, type, WHICH_CAP_MIN);
}

static inline u32 cap_max(struct venus_inst *inst, u32 type)
{
	return get_cap(inst, type, WHICH_CAP_MAX);
}

static inline u32 cap_step(struct venus_inst *inst, u32 type)
{
	return get_cap(inst, type, WHICH_CAP_STEP);
}

static inline u32 frame_width_min(struct venus_inst *inst)
{
	return cap_min(inst, HFI_CAPABILITY_FRAME_WIDTH);
}

static inline u32 frame_width_max(struct venus_inst *inst)
{
	return cap_max(inst, HFI_CAPABILITY_FRAME_WIDTH);
}

static inline u32 frame_width_step(struct venus_inst *inst)
{
	return cap_step(inst, HFI_CAPABILITY_FRAME_WIDTH);
}

static inline u32 frame_height_min(struct venus_inst *inst)
{
	return cap_min(inst, HFI_CAPABILITY_FRAME_HEIGHT);
}

static inline u32 frame_height_max(struct venus_inst *inst)
{
	return cap_max(inst, HFI_CAPABILITY_FRAME_HEIGHT);
}

static inline u32 frame_height_step(struct venus_inst *inst)
{
	return cap_step(inst, HFI_CAPABILITY_FRAME_HEIGHT);
}

static inline u32 frate_min(struct venus_inst *inst)
{
	return cap_min(inst, HFI_CAPABILITY_FRAMERATE);
}

static inline u32 frate_max(struct venus_inst *inst)
{
	return cap_max(inst, HFI_CAPABILITY_FRAMERATE);
}

static inline u32 frate_step(struct venus_inst *inst)
{
	return cap_step(inst, HFI_CAPABILITY_FRAMERATE);
}

static inline u32 core_num_max(struct venus_inst *inst)
{
	return cap_max(inst, HFI_CAPABILITY_MAX_VIDEOCORES);
}

static inline u32 mbs_per_frame_max(struct venus_inst *inst)
{

Annotation

• Immediate include surface: `core.h`.
• Detected declarations: `function get_cap`, `function cap_min`, `function cap_max`, `function cap_step`, `function frame_width_min`, `function frame_width_max`, `function frame_width_step`, `function frame_height_min`, `function frame_height_max`, `function frame_height_step`.
• 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.