drivers/staging/media/atomisp/pci/isp/kernels/tdf/tdf_1.0/ia_css_tdf.host.c

Source file repositories/reference/linux-study-clean/drivers/staging/media/atomisp/pci/isp/kernels/tdf/tdf_1.0/ia_css_tdf.host.c

File Facts

System
Linux kernel
Corpus path
drivers/staging/media/atomisp/pci/isp/kernels/tdf/tdf_1.0/ia_css_tdf.host.c
Extension
.c
Size
1833 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_debug.h"
#include "ia_css_tdf.host.h"

static const s16 g_pyramid[8][8] = {
	{128, 384, 640, 896, 896, 640, 384, 128},
	{384, 1152, 1920, 2688, 2688, 1920, 1152, 384},
	{640, 1920, 3200, 4480, 4480, 3200, 1920, 640},
	{896, 2688, 4480, 6272, 6272, 4480, 2688, 896},
	{896, 2688, 4480, 6272, 6272, 4480, 2688, 896},
	{640, 1920, 3200, 4480, 4480, 3200, 1920, 640},
	{384, 1152, 1920, 2688, 2688, 1920, 1152, 384},
	{128, 384, 640, 896, 896, 640, 384, 128}
};

void
ia_css_tdf_vmem_encode(
    struct ia_css_isp_tdf_vmem_params *to,
    const struct ia_css_tdf_config *from,
    size_t size)
{
	unsigned int i;
	(void)size;

	for (i = 0; i < ISP_VEC_NELEMS; i++) {
		to->pyramid[0][i]          = g_pyramid[i / 8][i % 8];
		to->threshold_flat[0][i]   = from->thres_flat_table[i];
		to->threshold_detail[0][i] = from->thres_detail_table[i];
	}
}

void
ia_css_tdf_encode(
    struct ia_css_isp_tdf_dmem_params *to,
    const struct ia_css_tdf_config *from,
    size_t size)
{
	(void)size;
	to->Epsilon_0        = from->epsilon_0;
	to->Epsilon_1        = from->epsilon_1;
	to->EpsScaleText     = from->eps_scale_text;
	to->EpsScaleEdge     = from->eps_scale_edge;
	to->Sepa_flat	     = from->sepa_flat;
	to->Sepa_Edge	     = from->sepa_edge;
	to->Blend_Flat	     = from->blend_flat;
	to->Blend_Text	     = from->blend_text;
	to->Blend_Edge	     = from->blend_edge;
	to->Shading_Gain     = from->shading_gain;
	to->Shading_baseGain = from->shading_base_gain;
	to->LocalY_Gain      = from->local_y_gain;
	to->LocalY_baseGain  = from->local_y_base_gain;
}

void
ia_css_tdf_debug_dtrace(
    const struct ia_css_tdf_config *config,
    unsigned int level)
{
	(void)config;
	(void)level;
}

Annotation

Implementation Notes