/*
 * Copyright 2021 Advanced Micro Devices, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Authors: AMD
 *
 */

#include "dm_services.h"
#include "core_types.h"
#include "reg_helper.h"
#include "dcn32/dcn32_dpp.h"
#include "basics/conversion.h"
#include "dcn30/dcn30_cm_common.h"

/* Compute the maximum number of lines that we can fit in the line buffer */
static void dscl32_calc_lb_num_partitions(
                const struct scaler_data *scl_data,
                enum lb_memory_config lb_config,
                int *num_part_y,
                int *num_part_c)
{
        int memory_line_size_y, memory_line_size_c, memory_line_size_a,
        lb_memory_size, lb_memory_size_c, lb_memory_size_a, num_partitions_a;

        int line_size = scl_data->viewport.width < scl_data->recout.width ?
                        scl_data->viewport.width : scl_data->recout.width;
        int line_size_c = scl_data->viewport_c.width < scl_data->recout.width ?
                        scl_data->viewport_c.width : scl_data->recout.width;

        if (line_size == 0)
                line_size = 1;

        if (line_size_c == 0)
                line_size_c = 1;

        memory_line_size_y = (line_size + 5) / 6; /* +5 to ceil */
        memory_line_size_c = (line_size_c + 5) / 6; /* +5 to ceil */
        memory_line_size_a = (line_size + 5) / 6; /* +5 to ceil */

        if (lb_config == LB_MEMORY_CONFIG_1) {
                lb_memory_size = 970;
                lb_memory_size_c = 970;
                lb_memory_size_a = 970;
        } else if (lb_config == LB_MEMORY_CONFIG_2) {
                lb_memory_size = 1290;
                lb_memory_size_c = 1290;
                lb_memory_size_a = 1290;
        } else if (lb_config == LB_MEMORY_CONFIG_3) {
                if (scl_data->viewport.width  == scl_data->h_active &&
                        scl_data->viewport.height == scl_data->v_active) {
                        /* 420 mode: luma using all 3 mem from Y, plus 3rd mem from Cr and Cb */
                        /* use increased LB size for calculation only if Scaler not enabled */
                        lb_memory_size = 970 + 1290 + 1170 + 1170 + 1170;
                        lb_memory_size_c = 970 + 1290;
                        lb_memory_size_a = 970 + 1290 + 1170;
                } else {
                        /* 420 mode: luma using all 3 mem from Y, plus 3rd mem from Cr and Cb */
                        lb_memory_size = 970 + 1290 + 484 + 484 + 484;
                        lb_memory_size_c = 970 + 1290;
                        lb_memory_size_a = 970 + 1290 + 484;
                }
        } else {
                if (scl_data->viewport.width  == scl_data->h_active &&
                        scl_data->viewport.height == scl_data->v_active) {
                        /* use increased LB size for calculation only if Scaler not enabled */
                        lb_memory_size = 970 + 1290 + 1170;
                        lb_memory_size_c = 970 + 1290 + 1170;
                        lb_memory_size_a = 970 + 1290 + 1170;
                } else {
                        lb_memory_size = 970 + 1290 + 484;
                        lb_memory_size_c = 970 + 1290 + 484;
                        lb_memory_size_a = 970 + 1290 + 484;
                }
        }
        *num_part_y = lb_memory_size / memory_line_size_y;
        *num_part_c = lb_memory_size_c / memory_line_size_c;
        num_partitions_a = lb_memory_size_a / memory_line_size_a;

        if (scl_data->lb_params.alpha_en
                        && (num_partitions_a < *num_part_y))
                *num_part_y = num_partitions_a;

        if (*num_part_y > 32)
                *num_part_y = 32;
        if (*num_part_c > 32)
                *num_part_c = 32;
}

static struct dpp_funcs dcn32_dpp_funcs = {
        .dpp_program_gamcor_lut         = dpp3_program_gamcor_lut,
        .dpp_read_state                         = dpp30_read_state,
        .dpp_reset                                      = dpp_reset,
        .dpp_set_scaler                         = dpp1_dscl_set_scaler_manual_scale,
        .dpp_get_optimal_number_of_taps = dpp3_get_optimal_number_of_taps,
        .dpp_set_gamut_remap            = dpp3_cm_set_gamut_remap,
        .dpp_set_csc_adjustment         = NULL,
        .dpp_set_csc_default            = NULL,
        .dpp_program_regamma_pwl        = NULL,
        .dpp_set_pre_degam                      = dpp3_set_pre_degam,
        .dpp_program_input_lut          = NULL,
        .dpp_full_bypass                        = dpp1_full_bypass,
        .dpp_setup                                      = dpp3_cnv_setup,
        .dpp_program_degamma_pwl        = NULL,
        .dpp_program_cm_dealpha         = dpp3_program_cm_dealpha,
        .dpp_program_cm_bias            = dpp3_program_cm_bias,

        .dpp_program_blnd_lut           = NULL, // BLNDGAM is removed completely in DCN3.2 DPP
        .dpp_program_shaper_lut         = NULL, // CM SHAPER block is removed in DCN3.2 DPP, (it is in MPCC, programmable before or after BLND)
        .dpp_program_3dlut                      = NULL, // CM 3DLUT block is removed in DCN3.2 DPP, (it is in MPCC, programmable before or after BLND)

        .dpp_program_bias_and_scale     = NULL,
        .dpp_cnv_set_alpha_keyer        = dpp2_cnv_set_alpha_keyer,
        .set_cursor_attributes          = dpp3_set_cursor_attributes,
        .set_cursor_position            = dpp1_set_cursor_position,
        .set_optional_cursor_attributes = dpp1_cnv_set_optional_cursor_attributes,
        .dpp_dppclk_control                     = dpp1_dppclk_control,
        .dpp_set_hdr_multiplier         = dpp3_set_hdr_multiplier,
        .dpp_get_gamut_remap            = dpp3_cm_get_gamut_remap,
        .dpp_read_reg_state                     = dpp30_read_reg_state,
};


static struct dpp_caps dcn32_dpp_cap = {
        .dscl_data_proc_format = DSCL_DATA_PRCESSING_FLOAT_FORMAT,
        .max_lb_partitions = 31,
        .dscl_calc_lb_num_partitions = dscl32_calc_lb_num_partitions,
};

bool dpp32_construct(
        struct dcn3_dpp *dpp,
        struct dc_context *ctx,
        uint32_t inst,
        const struct dcn3_dpp_registers *tf_regs,
        const struct dcn3_dpp_shift *tf_shift,
        const struct dcn3_dpp_mask *tf_mask)
{
        dpp->base.ctx = ctx;

        dpp->base.inst = inst;
        dpp->base.funcs = &dcn32_dpp_funcs;
        dpp->base.caps = &dcn32_dpp_cap;

        dpp->tf_regs = tf_regs;
        dpp->tf_shift = tf_shift;
        dpp->tf_mask = tf_mask;

        return true;
}
void dscl32_spl_calc_lb_num_partitions(
                bool alpha_en,
                const struct spl_scaler_data *scl_data,
                enum lb_memory_config lb_config,
                int *num_part_y,
                int *num_part_c)
{
        int memory_line_size_y, memory_line_size_c, memory_line_size_a,
        lb_memory_size, lb_memory_size_c, lb_memory_size_a, num_partitions_a;

        int line_size = scl_data->viewport.width < scl_data->recout.width ?
                        scl_data->viewport.width : scl_data->recout.width;
        int line_size_c = scl_data->viewport_c.width < scl_data->recout.width ?
                        scl_data->viewport_c.width : scl_data->recout.width;

        if (line_size == 0)
                line_size = 1;

        if (line_size_c == 0)
                line_size_c = 1;

        memory_line_size_y = (line_size + 5) / 6; /* +5 to ceil */
        memory_line_size_c = (line_size_c + 5) / 6; /* +5 to ceil */
        memory_line_size_a = (line_size + 5) / 6; /* +5 to ceil */

        if (lb_config == LB_MEMORY_CONFIG_1) {
                lb_memory_size = 970;
                lb_memory_size_c = 970;
                lb_memory_size_a = 970;
        } else if (lb_config == LB_MEMORY_CONFIG_2) {
                lb_memory_size = 1290;
                lb_memory_size_c = 1290;
                lb_memory_size_a = 1290;
        } else if (lb_config == LB_MEMORY_CONFIG_3) {
                if (scl_data->viewport.width  == scl_data->h_active &&
                        scl_data->viewport.height == scl_data->v_active) {
                        /* 420 mode: luma using all 3 mem from Y, plus 3rd mem from Cr and Cb */
                        /* use increased LB size for calculation only if Scaler not enabled */
                        lb_memory_size = 970 + 1290 + 1170 + 1170 + 1170;
                        lb_memory_size_c = 970 + 1290;
                        lb_memory_size_a = 970 + 1290 + 1170;
                } else {
                        /* 420 mode: luma using all 3 mem from Y, plus 3rd mem from Cr and Cb */
                        lb_memory_size = 970 + 1290 + 484 + 484 + 484;
                        lb_memory_size_c = 970 + 1290;
                        lb_memory_size_a = 970 + 1290 + 484;
                }
        } else {
                if (scl_data->viewport.width  == scl_data->h_active &&
                        scl_data->viewport.height == scl_data->v_active) {
                        /* use increased LB size for calculation only if Scaler not enabled */
                        lb_memory_size = 970 + 1290 + 1170;
                        lb_memory_size_c = 970 + 1290 + 1170;
                        lb_memory_size_a = 970 + 1290 + 1170;
                } else {
                        lb_memory_size = 970 + 1290 + 484;
                        lb_memory_size_c = 970 + 1290 + 484;
                        lb_memory_size_a = 970 + 1290 + 484;
                }
        }
        *num_part_y = lb_memory_size / memory_line_size_y;
        *num_part_c = lb_memory_size_c / memory_line_size_c;
        num_partitions_a = lb_memory_size_a / memory_line_size_a;

        if (alpha_en
                        && (num_partitions_a < *num_part_y))
                *num_part_y = num_partitions_a;

        if (*num_part_y > 32)
                *num_part_y = 32;
        if (*num_part_c > 32)
                *num_part_c = 32;
}