drivers/staging/media/atomisp/pci/isp/kernels/vf/vf_1.0/ia_css_vf.host.h

File Facts

System

Linux kernel

Corpus path

drivers/staging/media/atomisp/pci/isp/kernels/vf/vf_1.0/ia_css_vf.host.h

Extension

.h

Size

1032 bytes

Lines

38

Domain

Driver Families

Bucket

drivers/staging

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

• ia_css_frame_public.h
• ia_css_binary.h
• ia_css_vf_types.h
• ia_css_vf_param.h

Detected Declarations

• No top-level syscall, struct, function, initcall, or export declaration detected by the generator.

Annotated Snippet

#ifndef __IA_CSS_VF_HOST_H
#define __IA_CSS_VF_HOST_H

#include "ia_css_frame_public.h"
#include "ia_css_binary.h"

#include "ia_css_vf_types.h"
#include "ia_css_vf_param.h"

/* compute the log2 of the downscale factor needed to get closest
 * to the requested viewfinder resolution on the upper side. The output cannot
 * be smaller than the requested viewfinder resolution.
 */
int
sh_css_vf_downscale_log2(
    const struct ia_css_frame_info *out_info,
    const struct ia_css_frame_info *vf_info,
    unsigned int *downscale_log2);

int ia_css_vf_config(struct sh_css_isp_vf_isp_config *to,
		     const struct ia_css_vf_configuration *from,
		     unsigned int size);

int
ia_css_vf_configure(
    const struct ia_css_binary *binary,
    const struct ia_css_frame_info *out_info,
    struct ia_css_frame_info *vf_info,
    unsigned int *downscale_log2);

#endif /* __IA_CSS_VF_HOST_H */

Annotation

• Immediate include surface: `ia_css_frame_public.h`, `ia_css_binary.h`, `ia_css_vf_types.h`, `ia_css_vf_param.h`.
• Atlas domain: Driver Families / drivers/staging.
• 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.