drivers/staging/media/atomisp/pci/isp/kernels/wb/wb_1.0/ia_css_wb.host.c
Source file repositories/reference/linux-study-clean/drivers/staging/media/atomisp/pci/isp/kernels/wb/wb_1.0/ia_css_wb.host.c
File Facts
- System
- Linux kernel
- Corpus path
drivers/staging/media/atomisp/pci/isp/kernels/wb/wb_1.0/ia_css_wb.host.c- Extension
.c- Size
- 1864 bytes
- Lines
- 79
- 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.hsh_css_frac.hia_css_wb.host.h
Detected Declarations
function ia_css_wb_encodefunction ia_css_wb_dumpfunction ia_css_wb_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
#include "ia_css_debug.h"
#endif
#include "sh_css_frac.h"
#include "ia_css_wb.host.h"
const struct ia_css_wb_config default_wb_config = {
1,
32768,
32768,
32768,
32768
};
void
ia_css_wb_encode(
struct sh_css_isp_wb_params *to,
const struct ia_css_wb_config *from,
unsigned int size)
{
(void)size;
to->gain_shift =
uISP_REG_BIT - from->integer_bits;
to->gain_gr =
uDIGIT_FITTING(from->gr, 16 - from->integer_bits,
to->gain_shift);
to->gain_r =
uDIGIT_FITTING(from->r, 16 - from->integer_bits,
to->gain_shift);
to->gain_b =
uDIGIT_FITTING(from->b, 16 - from->integer_bits,
to->gain_shift);
to->gain_gb =
uDIGIT_FITTING(from->gb, 16 - from->integer_bits,
to->gain_shift);
}
#ifndef IA_CSS_NO_DEBUG
void
ia_css_wb_dump(
const struct sh_css_isp_wb_params *wb,
unsigned int level)
{
if (!wb) return;
ia_css_debug_dtrace(level, "White Balance:\n");
ia_css_debug_dtrace(level, "\t%-32s = %d\n",
"wb_gain_shift", wb->gain_shift);
ia_css_debug_dtrace(level, "\t%-32s = %d\n",
"wb_gain_gr", wb->gain_gr);
ia_css_debug_dtrace(level, "\t%-32s = %d\n",
"wb_gain_r", wb->gain_r);
ia_css_debug_dtrace(level, "\t%-32s = %d\n",
"wb_gain_b", wb->gain_b);
ia_css_debug_dtrace(level, "\t%-32s = %d\n",
"wb_gain_gb", wb->gain_gb);
}
void
ia_css_wb_debug_dtrace(
const struct ia_css_wb_config *config,
unsigned int level)
{
ia_css_debug_dtrace(level,
"config.integer_bits=%d, config.gr=%d, config.r=%d, config.b=%d, config.gb=%d\n",
config->integer_bits,
config->gr, config->r,
config->b, config->gb);
}
#endif
Annotation
- Immediate include surface: `ia_css_types.h`, `sh_css_defs.h`, `ia_css_debug.h`, `sh_css_frac.h`, `ia_css_wb.host.h`.
- Detected declarations: `function ia_css_wb_encode`, `function ia_css_wb_dump`, `function ia_css_wb_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.