// 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"
#include "ia_css_debug.h"
#include "sh_css_frac.h"

#include "ia_css_dp.host.h"

/* We use a different set of DPC configuration parameters when
 * DPC is used before OBC and NORM. Currently these parameters
 * are used in usecases which selects both BDS and DPC.
 **/
const struct ia_css_dp_config default_dp_10bpp_config = {
        1024,
        2048,
        32768,
        32768,
        32768,
        32768
};

const struct ia_css_dp_config default_dp_config = {
        8192,
        2048,
        32768,
        32768,
        32768,
        32768
};

void
ia_css_dp_encode(
    struct sh_css_isp_dp_params *to,
    const struct ia_css_dp_config *from,
    unsigned int size)
{
        int gain = from->gain;
        int gr   = from->gr;
        int r    = from->r;
        int b    = from->b;
        int gb   = from->gb;

        (void)size;
        to->threshold_single =
            SH_CSS_BAYER_MAXVAL;
        to->threshold_2adjacent =
            uDIGIT_FITTING(from->threshold, 16, SH_CSS_BAYER_BITS);
        to->gain =
            uDIGIT_FITTING(from->gain, 8, SH_CSS_DP_GAIN_SHIFT);

        to->coef_rr_gr =
            uDIGIT_FITTING(gain * gr / r, 8, SH_CSS_DP_GAIN_SHIFT);
        to->coef_rr_gb =
            uDIGIT_FITTING(gain * gb / r, 8, SH_CSS_DP_GAIN_SHIFT);
        to->coef_bb_gb =
            uDIGIT_FITTING(gain * gb / b, 8, SH_CSS_DP_GAIN_SHIFT);
        to->coef_bb_gr =
            uDIGIT_FITTING(gain * gr / b, 8, SH_CSS_DP_GAIN_SHIFT);
        to->coef_gr_rr =
            uDIGIT_FITTING(gain * r / gr, 8, SH_CSS_DP_GAIN_SHIFT);
        to->coef_gr_bb =
            uDIGIT_FITTING(gain * b / gr, 8, SH_CSS_DP_GAIN_SHIFT);
        to->coef_gb_bb =
            uDIGIT_FITTING(gain * b / gb, 8, SH_CSS_DP_GAIN_SHIFT);
        to->coef_gb_rr =
            uDIGIT_FITTING(gain * r / gb, 8, SH_CSS_DP_GAIN_SHIFT);
}

void
ia_css_dp_dump(
    const struct sh_css_isp_dp_params *dp,
    unsigned int level)
{
        if (!dp) return;
        ia_css_debug_dtrace(level, "Defect Pixel Correction:\n");
        ia_css_debug_dtrace(level, "\t%-32s = %d\n",
                            "dp_threshold_single_w_2adj_on",
                            dp->threshold_single);
        ia_css_debug_dtrace(level, "\t%-32s = %d\n",
                            "dp_threshold_2adj_w_2adj_on",
                            dp->threshold_2adjacent);
        ia_css_debug_dtrace(level, "\t%-32s = %d\n",
                            "dp_gain", dp->gain);
        ia_css_debug_dtrace(level, "\t%-32s = %d\n",
                            "dpc_coef_rr_gr", dp->coef_rr_gr);
        ia_css_debug_dtrace(level, "\t%-32s = %d\n",
                            "dpc_coef_rr_gb", dp->coef_rr_gb);
        ia_css_debug_dtrace(level, "\t%-32s = %d\n",
                            "dpc_coef_bb_gb", dp->coef_bb_gb);
        ia_css_debug_dtrace(level, "\t%-32s = %d\n",
                            "dpc_coef_bb_gr", dp->coef_bb_gr);
        ia_css_debug_dtrace(level, "\t%-32s = %d\n",
                            "dpc_coef_gr_rr", dp->coef_gr_rr);
        ia_css_debug_dtrace(level, "\t%-32s = %d\n",
                            "dpc_coef_gr_bb", dp->coef_gr_bb);
        ia_css_debug_dtrace(level, "\t%-32s = %d\n",
                            "dpc_coef_gb_bb", dp->coef_gb_bb);
        ia_css_debug_dtrace(level, "\t%-32s = %d\n",
                            "dpc_coef_gb_rr", dp->coef_gb_rr);
}

void
ia_css_dp_debug_dtrace(
    const struct ia_css_dp_config *config,
    unsigned int level)
{
        ia_css_debug_dtrace(level,
                            "config.threshold=%d, config.gain=%d\n",
                            config->threshold, config->gain);
}

void
ia_css_init_dp_state(
    void/*struct sh_css_isp_dp_vmem_state*/ * state,
    size_t size)
{
        memset(state, 0, size);
}