drivers/staging/media/atomisp/pci/isp/kernels/cnr/cnr_2/ia_css_cnr2.host.c
Source file repositories/reference/linux-study-clean/drivers/staging/media/atomisp/pci/isp/kernels/cnr/cnr_2/ia_css_cnr2.host.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/staging/media/atomisp/pci/isp/kernels/cnr/cnr_2/ia_css_cnr2.host.c- Extension
.c- Size
- 1562 bytes
- Lines
- 66
- 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_types.hsh_css_defs.hia_css_debug.hia_css_cnr2.host.h
Detected Declarations
function ia_css_cnr_encodefunction ia_css_cnr_debug_dtracefunction ia_css_init_cnr2_state
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0
/*
* Support for Intel Camera Imaging ISP subsystem.
* Copyright (c) 2015, Intel Corporation.
*/
#include "ia_css_types.h"
#include "sh_css_defs.h"
#include "ia_css_debug.h"
#include "ia_css_cnr2.host.h"
const struct ia_css_cnr_config default_cnr_config = {
0,
0,
100,
100,
100,
50,
50,
50
};
void
ia_css_cnr_encode(
struct sh_css_isp_cnr_params *to,
const struct ia_css_cnr_config *from,
unsigned int size)
{
(void)size;
to->coring_u = from->coring_u;
to->coring_v = from->coring_v;
to->sense_gain_vy = from->sense_gain_vy;
to->sense_gain_vu = from->sense_gain_vu;
to->sense_gain_vv = from->sense_gain_vv;
to->sense_gain_hy = from->sense_gain_hy;
to->sense_gain_hu = from->sense_gain_hu;
to->sense_gain_hv = from->sense_gain_hv;
}
void
ia_css_cnr_dump(
const struct sh_css_isp_cnr_params *cnr,
unsigned int level);
void
ia_css_cnr_debug_dtrace(
const struct ia_css_cnr_config *config,
unsigned int level)
{
ia_css_debug_dtrace(level,
"config.coring_u=%d, config.coring_v=%d, config.sense_gain_vy=%d, config.sense_gain_hy=%d, config.sense_gain_vu=%d, config.sense_gain_hu=%d, config.sense_gain_vv=%d, config.sense_gain_hv=%d\n",
config->coring_u, config->coring_v,
config->sense_gain_vy, config->sense_gain_hy,
config->sense_gain_vu, config->sense_gain_hu,
config->sense_gain_vv, config->sense_gain_hv);
}
void
ia_css_init_cnr2_state(
void/*struct sh_css_isp_cnr_vmem_state*/ * state,
size_t size)
{
memset(state, 0, size);
}
Annotation
- Immediate include surface: `ia_css_types.h`, `sh_css_defs.h`, `ia_css_debug.h`, `ia_css_cnr2.host.h`.
- Detected declarations: `function ia_css_cnr_encode`, `function ia_css_cnr_debug_dtrace`, `function ia_css_init_cnr2_state`.
- 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.