LXR linux/drivers/staging/media/atomisp/pci/isp/kernels/fpn/fpn_1.0/ia_css

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * Support for Intel Camera Imaging ISP subsystem.
   4 * Copyright (c) 2015, Intel Corporation.
   5 *
   6 * This program is free software; you can redistribute it and/or modify it
   7 * under the terms and conditions of the GNU General Public License,
   8 * version 2, as published by the Free Software Foundation.
   9 *
  10 * This program is distributed in the hope it will be useful, but WITHOUT
  11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13 * more details.
  14 */
  15
  16#include <assert_support.h>
  17#include <ia_css_frame_public.h>
  18#include <ia_css_frame.h>
  19#include <ia_css_binary.h>
  20#include <ia_css_types.h>
  21#include <sh_css_defs.h>
  22#include <ia_css_debug.h>
  23
  24#define IA_CSS_INCLUDE_CONFIGURATIONS
  25#include "ia_css_isp_configs.h"
  26#include "isp.h"
  27
  28#include "ia_css_fpn.host.h"
  29
  30void
  31ia_css_fpn_encode(
  32    struct sh_css_isp_fpn_params *to,
  33    const struct ia_css_fpn_table *from,
  34    unsigned int size)
  35{
  36        (void)size;
  37        to->shift = from->shift;
  38        to->enabled = from->data != NULL;
  39}
  40
  41void
  42ia_css_fpn_dump(
  43    const struct sh_css_isp_fpn_params *fpn,
  44    unsigned int level)
  45{
  46        if (!fpn) return;
  47        ia_css_debug_dtrace(level, "Fixed Pattern Noise Reduction:\n");
  48        ia_css_debug_dtrace(level, "\t%-32s = %d\n",
  49                            "fpn_shift", fpn->shift);
  50        ia_css_debug_dtrace(level, "\t%-32s = %d\n",
  51                            "fpn_enabled", fpn->enabled);
  52}
  53
  54void
  55ia_css_fpn_config(
  56    struct sh_css_isp_fpn_isp_config *to,
  57    const struct ia_css_fpn_configuration *from,
  58    unsigned int size)
  59{
  60        unsigned int elems_a = ISP_VEC_NELEMS;
  61
  62        (void)size;
  63        ia_css_dma_configure_from_info(&to->port_b, from->info);
  64        to->width_a_over_b = elems_a / to->port_b.elems;
  65
  66        /* Assume divisiblity here, may need to generalize to fixed point. */
  67        assert(elems_a % to->port_b.elems == 0);
  68}
  69
  70void
  71ia_css_fpn_configure(
  72    const struct ia_css_binary     *binary,
  73    const struct ia_css_frame_info *info)
  74{
  75        struct ia_css_frame_info my_info = IA_CSS_BINARY_DEFAULT_FRAME_INFO;
  76        const struct ia_css_fpn_configuration config = {
  77                &my_info
  78        };
  79
  80        my_info.res.width       = CEIL_DIV(info->res.width, 2);         /* Packed by 2x */
  81        my_info.res.height      = info->res.height;
  82        my_info.padded_width    = CEIL_DIV(info->padded_width, 2);      /* Packed by 2x */
  83        my_info.format          = info->format;
  84        my_info.raw_bit_depth   = FPN_BITS_PER_PIXEL;
  85        my_info.raw_bayer_order = info->raw_bayer_order;
  86        my_info.crop_info       = info->crop_info;
  87
  88        ia_css_configure_fpn(binary, &config);
  89}
  90