linux/drivers/staging/media/atomisp/pci/isp/kernels/vf/vf_1.0/ia_css_vf.host.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Support for Intel Camera Imaging ISP subsystem.
 * Copyright (c) 2015, Intel Corporation.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 */

#include "atomisp_internal.h"

#include "ia_css_vf.host.h"
#include <assert_support.h>
#include <ia_css_err.h>
#include <ia_css_frame.h>
#include <ia_css_frame_public.h>
#include <ia_css_pipeline.h>
#define IA_CSS_INCLUDE_CONFIGURATIONS
#include "ia_css_isp_configs.h"

#include "isp.h"

int ia_css_vf_config(struct sh_css_isp_vf_isp_config      *to,
		    const struct ia_css_vf_configuration *from,
		    unsigned int size)
{ … }

/* compute the log2 of the downscale factor needed to get closest
 * to the requested viewfinder resolution on the upper side. The output cannot
 * be smaller than the requested viewfinder resolution.
 */
int
sh_css_vf_downscale_log2(
    const struct ia_css_frame_info *out_info,
    const struct ia_css_frame_info *vf_info,
    unsigned int *downscale_log2) { … }

static int
configure_kernel(
    const struct ia_css_binary_info *info,
    const struct ia_css_frame_info *out_info,
    const struct ia_css_frame_info *vf_info,
    unsigned int *downscale_log2,
    struct ia_css_vf_configuration *config) { … }

static void
configure_dma(
    struct ia_css_vf_configuration *config,
    const struct ia_css_frame_info *vf_info)
{ … }

int ia_css_vf_configure(const struct ia_css_binary *binary,
		        const struct ia_css_frame_info *out_info,
			struct ia_css_frame_info *vf_info,
			unsigned int *downscale_log2)
{ … }