drivers/media/platform/st/sti/hva/hva-hw.h

File Facts

System

Linux kernel

Corpus path

drivers/media/platform/st/sti/hva/hva-hw.h

Extension

.h

Size

1135 bytes

Lines

46

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

• hva-mem.h

Detected Declarations

• enum hva_hw_cmd_type

Annotated Snippet

#ifndef HVA_HW_H
#define HVA_HW_H

#include "hva-mem.h"

/* HVA Versions */
#define HVA_VERSION_UNKNOWN    0x000
#define HVA_VERSION_V400       0x400

/* HVA command types */
enum hva_hw_cmd_type {
	/* RESERVED = 0x00 */
	/* RESERVED = 0x01 */
	H264_ENC = 0x02,
	/* RESERVED = 0x03 */
	/* RESERVED = 0x04 */
	/* RESERVED = 0x05 */
	/* RESERVED = 0x06 */
	/* RESERVED = 0x07 */
	REMOVE_CLIENT = 0x08,
	FREEZE_CLIENT = 0x09,
	START_CLIENT = 0x0A,
	FREEZE_ALL = 0x0B,
	START_ALL = 0x0C,
	REMOVE_ALL = 0x0D
};

int hva_hw_probe(struct platform_device *pdev, struct hva_dev *hva);
void hva_hw_remove(struct hva_dev *hva);
int hva_hw_runtime_suspend(struct device *dev);
int hva_hw_runtime_resume(struct device *dev);
int hva_hw_execute_task(struct hva_ctx *ctx, enum hva_hw_cmd_type cmd,
			struct hva_buffer *task);
#ifdef CONFIG_VIDEO_STI_HVA_DEBUGFS
void hva_hw_dump_regs(struct hva_dev *hva, struct seq_file *s);
#endif

#endif /* HVA_HW_H */

Annotation

• Immediate include surface: `hva-mem.h`.
• Detected declarations: `enum hva_hw_cmd_type`.
• 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.