drivers/staging/media/atomisp/pci/isp/kernels/macc/macc1_5/ia_css_macc1_5.host.c

Source file repositories/reference/linux-study-clean/drivers/staging/media/atomisp/pci/isp/kernels/macc/macc1_5/ia_css_macc1_5.host.c

File Facts

System
Linux kernel
Corpus path
drivers/staging/media/atomisp/pci/isp/kernels/macc/macc1_5/ia_css_macc1_5.host.c
Extension
.c
Size
1397 bytes
Lines
67
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
/* FIXME: See BZ 4427 */
#include "ia_css_debug.h"
#endif

#include "ia_css_macc1_5.host.h"

const struct ia_css_macc1_5_config default_macc1_5_config = {
	1
};

void
ia_css_macc1_5_encode(
    struct sh_css_isp_macc1_5_params *to,
    const struct ia_css_macc1_5_config *from,
    unsigned int size)
{
	(void)size;
	to->exp = from->exp;
}

void
ia_css_macc1_5_vmem_encode(
    struct sh_css_isp_macc1_5_vmem_params *params,
    const struct ia_css_macc1_5_table *from,
    unsigned int size)
{
	unsigned int i, j, k, idx;
	static const unsigned int idx_map[] = {
		0, 1, 3, 2, 6, 7, 5, 4, 12, 13, 15, 14, 10, 11, 9, 8
	};

	(void)size;

	for (k = 0; k < 4; k++)
		for (i = 0; i < IA_CSS_MACC_NUM_AXES; i++) {
			idx = idx_map[i] + (k * IA_CSS_MACC_NUM_AXES);
			j   = 4 * i;

			params->data[0][(idx)] = from->data[j];
			params->data[1][(idx)] = from->data[j + 1];
			params->data[2][(idx)] = from->data[j + 2];
			params->data[3][(idx)] = from->data[j + 3];
		}
}

#ifndef IA_CSS_NO_DEBUG
void
ia_css_macc1_5_debug_dtrace(
    const struct ia_css_macc1_5_config *config,
    unsigned int level)
{
	ia_css_debug_dtrace(level,
			    "config.exp=%d\n",
			    config->exp);
}
#endif

Annotation

Implementation Notes