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.

Dependency Surface

Detected Declarations

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

Implementation Notes