drivers/staging/media/atomisp/pci/isp/kernels/csc/csc_1.0/ia_css_csc.host.c
Source file repositories/reference/linux-study-clean/drivers/staging/media/atomisp/pci/isp/kernels/csc/csc_1.0/ia_css_csc.host.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/staging/media/atomisp/pci/isp/kernels/csc/csc_1.0/ia_css_csc.host.c- Extension
.c- Size
- 2969 bytes
- Lines
- 120
- 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_csc.host.h
Detected Declarations
function ia_css_encode_ccfunction ia_css_csc_encodefunction ia_css_cc_dumpfunction ia_css_csc_dumpfunction ia_css_cc_config_debug_dtrace
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"
#ifndef IA_CSS_NO_DEBUG
/* FIXME: See BZ 4427 */
#include "ia_css_debug.h"
#endif
#include "ia_css_csc.host.h"
const struct ia_css_cc_config default_cc_config = {
8,
{255, 29, 120, 0, -374, -342, 0, -672, 301},
};
void
ia_css_encode_cc(
struct sh_css_isp_csc_params *to,
const struct ia_css_cc_config *from,
unsigned int size)
{
(void)size;
#ifndef IA_CSS_NO_DEBUG
ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE, "ia_css_encode_cc() enter:\n");
#endif
to->m_shift = (int16_t)from->fraction_bits;
to->m00 = (int16_t)from->matrix[0];
to->m01 = (int16_t)from->matrix[1];
to->m02 = (int16_t)from->matrix[2];
to->m10 = (int16_t)from->matrix[3];
to->m11 = (int16_t)from->matrix[4];
to->m12 = (int16_t)from->matrix[5];
to->m20 = (int16_t)from->matrix[6];
to->m21 = (int16_t)from->matrix[7];
to->m22 = (int16_t)from->matrix[8];
#ifndef IA_CSS_NO_DEBUG
ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE, "ia_css_encode_cc() leave:\n");
#endif
}
void
ia_css_csc_encode(
struct sh_css_isp_csc_params *to,
const struct ia_css_cc_config *from,
unsigned int size)
{
ia_css_encode_cc(to, from, size);
}
#ifndef IA_CSS_NO_DEBUG
void
ia_css_cc_dump(
const struct sh_css_isp_csc_params *csc,
unsigned int level,
const char *name)
{
if (!csc) return;
ia_css_debug_dtrace(level, "%s\n", name);
ia_css_debug_dtrace(level, "\t%-32s = %d\n",
"m_shift",
csc->m_shift);
ia_css_debug_dtrace(level, "\t%-32s = %d\n",
"m00",
csc->m00);
ia_css_debug_dtrace(level, "\t%-32s = %d\n",
"m01",
csc->m01);
ia_css_debug_dtrace(level, "\t%-32s = %d\n",
"m02",
csc->m02);
ia_css_debug_dtrace(level, "\t%-32s = %d\n",
"m10",
csc->m10);
ia_css_debug_dtrace(level, "\t%-32s = %d\n",
"m11",
csc->m11);
ia_css_debug_dtrace(level, "\t%-32s = %d\n",
"m12",
csc->m12);
ia_css_debug_dtrace(level, "\t%-32s = %d\n",
"m20",
csc->m20);
ia_css_debug_dtrace(level, "\t%-32s = %d\n",
Annotation
- Immediate include surface: `ia_css_types.h`, `sh_css_defs.h`, `ia_css_debug.h`, `ia_css_csc.host.h`.
- Detected declarations: `function ia_css_encode_cc`, `function ia_css_csc_encode`, `function ia_css_cc_dump`, `function ia_css_csc_dump`, `function ia_css_cc_config_debug_dtrace`.
- 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.