LXR linux/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_cm

   1/*
   2 * Copyright 2020 Advanced Micro Devices, Inc.
   3 *
   4 * Permission is hereby granted, free of charge, to any person obtaining a
   5 * copy of this software and associated documentation files (the "Software"),
   6 * to deal in the Software without restriction, including without limitation
   7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8 * and/or sell copies of the Software, and to permit persons to whom the
   9 * Software is furnished to do so, subject to the following conditions:
  10 *
  11 * The above copyright notice and this permission notice shall be included in
  12 * all copies or substantial portions of the Software.
  13 *
  14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 * OTHER DEALINGS IN THE SOFTWARE.
  21 *
  22 * Authors: AMD
  23 *
  24 */
  25
  26#include "dm_services.h"
  27#include "core_types.h"
  28#include "reg_helper.h"
  29#include "dcn30_dpp.h"
  30#include "basics/conversion.h"
  31#include "dcn30_cm_common.h"
  32#include "custom_float.h"
  33
  34#define REG(reg) reg
  35
  36#define CTX \
  37        ctx //dpp->base.ctx
  38
  39#undef FN
  40#define FN(reg_name, field_name) \
  41        reg->shifts.field_name, reg->masks.field_name
  42
  43void cm_helper_program_gamcor_xfer_func(
  44                struct dc_context *ctx,
  45                const struct pwl_params *params,
  46                const struct dcn3_xfer_func_reg *reg)
  47{
  48        uint32_t reg_region_cur;
  49        unsigned int i = 0;
  50
  51        REG_SET_2(reg->start_cntl_b, 0,
  52                exp_region_start, params->corner_points[0].blue.custom_float_x,
  53                exp_resion_start_segment, 0);
  54        REG_SET_2(reg->start_cntl_g, 0,
  55                exp_region_start, params->corner_points[0].green.custom_float_x,
  56                exp_resion_start_segment, 0);
  57        REG_SET_2(reg->start_cntl_r, 0,
  58                exp_region_start, params->corner_points[0].red.custom_float_x,
  59                exp_resion_start_segment, 0);
  60
  61        REG_SET(reg->start_slope_cntl_b, 0, //linear slope at start of curve
  62                field_region_linear_slope, params->corner_points[0].blue.custom_float_slope);
  63        REG_SET(reg->start_slope_cntl_g, 0,
  64                field_region_linear_slope, params->corner_points[0].green.custom_float_slope);
  65        REG_SET(reg->start_slope_cntl_r, 0,
  66                field_region_linear_slope, params->corner_points[0].red.custom_float_slope);
  67
  68        REG_SET(reg->start_end_cntl1_b, 0,
  69                field_region_end_base, params->corner_points[1].blue.custom_float_y);
  70        REG_SET(reg->start_end_cntl1_g, 0,
  71                field_region_end_base, params->corner_points[1].green.custom_float_y);
  72        REG_SET(reg->start_end_cntl1_r, 0,
  73                field_region_end_base, params->corner_points[1].red.custom_float_y);
  74
  75        REG_SET_2(reg->start_end_cntl2_b, 0,
  76                field_region_end_slope, params->corner_points[1].blue.custom_float_slope,
  77                field_region_end, params->corner_points[1].blue.custom_float_x);
  78        REG_SET_2(reg->start_end_cntl2_g, 0,
  79                field_region_end_slope, params->corner_points[1].green.custom_float_slope,
  80                field_region_end, params->corner_points[1].green.custom_float_x);
  81        REG_SET_2(reg->start_end_cntl2_r, 0,
  82                field_region_end_slope, params->corner_points[1].red.custom_float_slope,
  83                field_region_end, params->corner_points[1].red.custom_float_x);
  84
  85        for (reg_region_cur = reg->region_start;
  86                reg_region_cur <= reg->region_end;
  87                reg_region_cur++) {
  88
  89                const struct gamma_curve *curve0 = &(params->arr_curve_points[2 * i]);
  90                const struct gamma_curve *curve1 = &(params->arr_curve_points[(2 * i) + 1]);
  91
  92                REG_SET_4(reg_region_cur, 0,
  93                        exp_region0_lut_offset, curve0->offset,
  94                        exp_region0_num_segments, curve0->segments_num,
  95                        exp_region1_lut_offset, curve1->offset,
  96                        exp_region1_num_segments, curve1->segments_num);
  97
  98                i++;
  99        }
 100}
 101
 102/* driver uses 32 regions or less, but DCN HW has 34, extra 2 are set to 0 */
 103#define MAX_REGIONS_NUMBER 34
 104#define MAX_LOW_POINT      25
 105#define NUMBER_REGIONS     32
 106#define NUMBER_SW_SEGMENTS 16
 107
 108bool cm3_helper_translate_curve_to_hw_format(
 109                                const struct dc_transfer_func *output_tf,
 110                                struct pwl_params *lut_params, bool fixpoint)
 111{
 112        struct curve_points3 *corner_points;
 113        struct pwl_result_data *rgb_resulted;
 114        struct pwl_result_data *rgb;
 115        struct pwl_result_data *rgb_plus_1;
 116        struct pwl_result_data *rgb_minus_1;
 117        struct fixed31_32 end_value;
 118
 119        int32_t region_start, region_end;
 120        int32_t i;
 121        uint32_t j, k, seg_distr[MAX_REGIONS_NUMBER], increment, start_index, hw_points;
 122
 123        if (output_tf == NULL || lut_params == NULL || output_tf->type == TF_TYPE_BYPASS)
 124                return false;
 125
 126        corner_points = lut_params->corner_points;
 127        rgb_resulted = lut_params->rgb_resulted;
 128        hw_points = 0;
 129
 130        memset(lut_params, 0, sizeof(struct pwl_params));
 131        memset(seg_distr, 0, sizeof(seg_distr));
 132
 133        if (output_tf->tf == TRANSFER_FUNCTION_PQ || output_tf->tf == TRANSFER_FUNCTION_GAMMA22 ||
 134                output_tf->tf == TRANSFER_FUNCTION_HLG) {
 135                /* 32 segments
 136                 * segments are from 2^-25 to 2^7
 137                 */
 138                for (i = 0; i < NUMBER_REGIONS ; i++)
 139                        seg_distr[i] = 3;
 140
 141                region_start = -MAX_LOW_POINT;
 142                region_end   = NUMBER_REGIONS - MAX_LOW_POINT;
 143        } else {
 144                /* 11 segments
 145                 * segment is from 2^-10 to 2^0
 146                 * There are less than 256 points, for optimization
 147                 */
 148                seg_distr[0] = 3;
 149                seg_distr[1] = 4;
 150                seg_distr[2] = 4;
 151                seg_distr[3] = 4;
 152                seg_distr[4] = 4;
 153                seg_distr[5] = 4;
 154                seg_distr[6] = 4;
 155                seg_distr[7] = 4;
 156                seg_distr[8] = 4;
 157                seg_distr[9] = 4;
 158                seg_distr[10] = 1;
 159
 160                region_start = -10;
 161                region_end = 1;
 162        }
 163
 164        for (i = region_end - region_start; i < MAX_REGIONS_NUMBER ; i++)
 165                seg_distr[i] = -1;
 166
 167        for (k = 0; k < MAX_REGIONS_NUMBER; k++) {
 168                if (seg_distr[k] != -1)
 169                        hw_points += (1 << seg_distr[k]);
 170        }
 171
 172        j = 0;
 173        for (k = 0; k < (region_end - region_start); k++) {
 174                increment = NUMBER_SW_SEGMENTS / (1 << seg_distr[k]);
 175                start_index = (region_start + k + MAX_LOW_POINT) *
 176                                NUMBER_SW_SEGMENTS;
 177                for (i = start_index; i < start_index + NUMBER_SW_SEGMENTS;
 178                                i += increment) {
 179                        if (j == hw_points - 1)
 180                                break;
 181                        rgb_resulted[j].red = output_tf->tf_pts.red[i];
 182                        rgb_resulted[j].green = output_tf->tf_pts.green[i];
 183                        rgb_resulted[j].blue = output_tf->tf_pts.blue[i];
 184                        j++;
 185                }
 186        }
 187
 188        /* last point */
 189        start_index = (region_end + MAX_LOW_POINT) * NUMBER_SW_SEGMENTS;
 190        rgb_resulted[hw_points - 1].red = output_tf->tf_pts.red[start_index];
 191        rgb_resulted[hw_points - 1].green = output_tf->tf_pts.green[start_index];
 192        rgb_resulted[hw_points - 1].blue = output_tf->tf_pts.blue[start_index];
 193
 194        rgb_resulted[hw_points].red = rgb_resulted[hw_points - 1].red;
 195        rgb_resulted[hw_points].green = rgb_resulted[hw_points - 1].green;
 196        rgb_resulted[hw_points].blue = rgb_resulted[hw_points - 1].blue;
 197
 198        // All 3 color channels have same x
 199        corner_points[0].red.x = dc_fixpt_pow(dc_fixpt_from_int(2),
 200                                             dc_fixpt_from_int(region_start));
 201        corner_points[0].green.x = corner_points[0].red.x;
 202        corner_points[0].blue.x = corner_points[0].red.x;
 203
 204        corner_points[1].red.x = dc_fixpt_pow(dc_fixpt_from_int(2),
 205                                             dc_fixpt_from_int(region_end));
 206        corner_points[1].green.x = corner_points[1].red.x;
 207        corner_points[1].blue.x = corner_points[1].red.x;
 208
 209        corner_points[0].red.y = rgb_resulted[0].red;
 210        corner_points[0].green.y = rgb_resulted[0].green;
 211        corner_points[0].blue.y = rgb_resulted[0].blue;
 212
 213        corner_points[0].red.slope = dc_fixpt_div(corner_points[0].red.y,
 214                        corner_points[0].red.x);
 215        corner_points[0].green.slope = dc_fixpt_div(corner_points[0].green.y,
 216                        corner_points[0].green.x);
 217        corner_points[0].blue.slope = dc_fixpt_div(corner_points[0].blue.y,
 218                        corner_points[0].blue.x);
 219
 220        /* see comment above, m_arrPoints[1].y should be the Y value for the
 221         * region end (m_numOfHwPoints), not last HW point(m_numOfHwPoints - 1)
 222         */
 223        corner_points[1].red.y = rgb_resulted[hw_points - 1].red;
 224        corner_points[1].green.y = rgb_resulted[hw_points - 1].green;
 225        corner_points[1].blue.y = rgb_resulted[hw_points - 1].blue;
 226        corner_points[1].red.slope = dc_fixpt_zero;
 227        corner_points[1].green.slope = dc_fixpt_zero;
 228        corner_points[1].blue.slope = dc_fixpt_zero;
 229
 230        if (output_tf->tf == TRANSFER_FUNCTION_PQ || output_tf->tf == TRANSFER_FUNCTION_HLG) {
 231                /* for PQ/HLG, we want to have a straight line from last HW X point,
 232                 * and the slope to be such that we hit 1.0 at 10000/1000 nits.
 233                 */
 234
 235                if (output_tf->tf == TRANSFER_FUNCTION_PQ)
 236                        end_value = dc_fixpt_from_int(125);
 237                else
 238                        end_value = dc_fixpt_from_fraction(125, 10);
 239
 240                corner_points[1].red.slope = dc_fixpt_div(
 241                        dc_fixpt_sub(dc_fixpt_one, corner_points[1].red.y),
 242                        dc_fixpt_sub(end_value, corner_points[1].red.x));
 243                corner_points[1].green.slope = dc_fixpt_div(
 244                        dc_fixpt_sub(dc_fixpt_one, corner_points[1].green.y),
 245                        dc_fixpt_sub(end_value, corner_points[1].green.x));
 246                corner_points[1].blue.slope = dc_fixpt_div(
 247                        dc_fixpt_sub(dc_fixpt_one, corner_points[1].blue.y),
 248                        dc_fixpt_sub(end_value, corner_points[1].blue.x));
 249        }
 250        lut_params->hw_points_num = hw_points;
 251
 252        k = 0;
 253        for (i = 1; i < MAX_REGIONS_NUMBER; i++) {
 254                if (seg_distr[k] != -1) {
 255                        lut_params->arr_curve_points[k].segments_num =
 256                                        seg_distr[k];
 257                        lut_params->arr_curve_points[i].offset =
 258                                        lut_params->arr_curve_points[k].offset + (1 << seg_distr[k]);
 259                }
 260                k++;
 261        }
 262
 263        if (seg_distr[k] != -1)
 264                lut_params->arr_curve_points[k].segments_num = seg_distr[k];
 265
 266        rgb = rgb_resulted;
 267        rgb_plus_1 = rgb_resulted + 1;
 268        rgb_minus_1 = rgb;
 269
 270        i = 1;
 271        while (i != hw_points + 1) {
 272                if (i >= hw_points - 1) {
 273                        if (dc_fixpt_lt(rgb_plus_1->red, rgb->red))
 274                                rgb_plus_1->red = dc_fixpt_add(rgb->red, rgb_minus_1->delta_red);
 275                        if (dc_fixpt_lt(rgb_plus_1->green, rgb->green))
 276                                rgb_plus_1->green = dc_fixpt_add(rgb->green, rgb_minus_1->delta_green);
 277                        if (dc_fixpt_lt(rgb_plus_1->blue, rgb->blue))
 278                                rgb_plus_1->blue = dc_fixpt_add(rgb->blue, rgb_minus_1->delta_blue);
 279                }
 280
 281                rgb->delta_red   = dc_fixpt_sub(rgb_plus_1->red,   rgb->red);
 282                rgb->delta_green = dc_fixpt_sub(rgb_plus_1->green, rgb->green);
 283                rgb->delta_blue  = dc_fixpt_sub(rgb_plus_1->blue,  rgb->blue);
 284
 285                if (fixpoint == true) {
 286                        rgb->delta_red_reg   = dc_fixpt_clamp_u0d10(rgb->delta_red);
 287                        rgb->delta_green_reg = dc_fixpt_clamp_u0d10(rgb->delta_green);
 288                        rgb->delta_blue_reg  = dc_fixpt_clamp_u0d10(rgb->delta_blue);
 289                        rgb->red_reg         = dc_fixpt_clamp_u0d14(rgb->red);
 290                        rgb->green_reg       = dc_fixpt_clamp_u0d14(rgb->green);
 291                        rgb->blue_reg        = dc_fixpt_clamp_u0d14(rgb->blue);
 292                }
 293
 294                ++rgb_plus_1;
 295                rgb_minus_1 = rgb;
 296                ++rgb;
 297                ++i;
 298        }
 299        cm3_helper_convert_to_custom_float(rgb_resulted,
 300                                                lut_params->corner_points,
 301                                                hw_points, fixpoint);
 302
 303        return true;
 304}
 305
 306#define NUM_DEGAMMA_REGIONS    12
 307
 308
 309bool cm3_helper_translate_curve_to_degamma_hw_format(
 310                                const struct dc_transfer_func *output_tf,
 311                                struct pwl_params *lut_params)
 312{
 313        struct curve_points3 *corner_points;
 314        struct pwl_result_data *rgb_resulted;
 315        struct pwl_result_data *rgb;
 316        struct pwl_result_data *rgb_plus_1;
 317
 318        int32_t region_start, region_end;
 319        int32_t i;
 320        uint32_t j, k, seg_distr[MAX_REGIONS_NUMBER], increment, start_index, hw_points;
 321
 322        if (output_tf == NULL || lut_params == NULL || output_tf->type == TF_TYPE_BYPASS)
 323                return false;
 324
 325        corner_points = lut_params->corner_points;
 326        rgb_resulted = lut_params->rgb_resulted;
 327        hw_points = 0;
 328
 329        memset(lut_params, 0, sizeof(struct pwl_params));
 330        memset(seg_distr, 0, sizeof(seg_distr));
 331
 332        region_start = -NUM_DEGAMMA_REGIONS;
 333        region_end   = 0;
 334
 335
 336        for (i = region_end - region_start; i < MAX_REGIONS_NUMBER ; i++)
 337                seg_distr[i] = -1;
 338        /* 12 segments
 339         * segments are from 2^-12 to 0
 340         */
 341        for (i = 0; i < NUM_DEGAMMA_REGIONS ; i++)
 342                seg_distr[i] = 4;
 343
 344        for (k = 0; k < MAX_REGIONS_NUMBER; k++) {
 345                if (seg_distr[k] != -1)
 346                        hw_points += (1 << seg_distr[k]);
 347        }
 348
 349        j = 0;
 350        for (k = 0; k < (region_end - region_start); k++) {
 351                increment = NUMBER_SW_SEGMENTS / (1 << seg_distr[k]);
 352                start_index = (region_start + k + MAX_LOW_POINT) *
 353                                NUMBER_SW_SEGMENTS;
 354                for (i = start_index; i < start_index + NUMBER_SW_SEGMENTS;
 355                                i += increment) {
 356                        if (j == hw_points - 1)
 357                                break;
 358                        rgb_resulted[j].red = output_tf->tf_pts.red[i];
 359                        rgb_resulted[j].green = output_tf->tf_pts.green[i];
 360                        rgb_resulted[j].blue = output_tf->tf_pts.blue[i];
 361                        j++;
 362                }
 363        }
 364
 365        /* last point */
 366        start_index = (region_end + MAX_LOW_POINT) * NUMBER_SW_SEGMENTS;
 367        rgb_resulted[hw_points - 1].red = output_tf->tf_pts.red[start_index];
 368        rgb_resulted[hw_points - 1].green = output_tf->tf_pts.green[start_index];
 369        rgb_resulted[hw_points - 1].blue = output_tf->tf_pts.blue[start_index];
 370
 371        corner_points[0].red.x = dc_fixpt_pow(dc_fixpt_from_int(2),
 372                                             dc_fixpt_from_int(region_start));
 373        corner_points[0].green.x = corner_points[0].red.x;
 374        corner_points[0].blue.x = corner_points[0].red.x;
 375        corner_points[1].red.x = dc_fixpt_pow(dc_fixpt_from_int(2),
 376                                             dc_fixpt_from_int(region_end));
 377        corner_points[1].green.x = corner_points[1].red.x;
 378        corner_points[1].blue.x = corner_points[1].red.x;
 379
 380        corner_points[0].red.y = rgb_resulted[0].red;
 381        corner_points[0].green.y = rgb_resulted[0].green;
 382        corner_points[0].blue.y = rgb_resulted[0].blue;
 383
 384        /* see comment above, m_arrPoints[1].y should be the Y value for the
 385         * region end (m_numOfHwPoints), not last HW point(m_numOfHwPoints - 1)
 386         */
 387        corner_points[1].red.y = rgb_resulted[hw_points - 1].red;
 388        corner_points[1].green.y = rgb_resulted[hw_points - 1].green;
 389        corner_points[1].blue.y = rgb_resulted[hw_points - 1].blue;
 390        corner_points[1].red.slope = dc_fixpt_zero;
 391        corner_points[1].green.slope = dc_fixpt_zero;
 392        corner_points[1].blue.slope = dc_fixpt_zero;
 393
 394        if (output_tf->tf == TRANSFER_FUNCTION_PQ) {
 395                /* for PQ, we want to have a straight line from last HW X point,
 396                 * and the slope to be such that we hit 1.0 at 10000 nits.
 397                 */
 398                const struct fixed31_32 end_value =
 399                                dc_fixpt_from_int(125);
 400
 401                corner_points[1].red.slope = dc_fixpt_div(
 402                        dc_fixpt_sub(dc_fixpt_one, corner_points[1].red.y),
 403                        dc_fixpt_sub(end_value, corner_points[1].red.x));
 404                corner_points[1].green.slope = dc_fixpt_div(
 405                        dc_fixpt_sub(dc_fixpt_one, corner_points[1].green.y),
 406                        dc_fixpt_sub(end_value, corner_points[1].green.x));
 407                corner_points[1].blue.slope = dc_fixpt_div(
 408                        dc_fixpt_sub(dc_fixpt_one, corner_points[1].blue.y),
 409                        dc_fixpt_sub(end_value, corner_points[1].blue.x));
 410        }
 411
 412        lut_params->hw_points_num = hw_points;
 413
 414        k = 0;
 415        for (i = 1; i < MAX_REGIONS_NUMBER; i++) {
 416                if (seg_distr[k] != -1) {
 417                        lut_params->arr_curve_points[k].segments_num =
 418                                        seg_distr[k];
 419                        lut_params->arr_curve_points[i].offset =
 420                                        lut_params->arr_curve_points[k].offset + (1 << seg_distr[k]);
 421                }
 422                k++;
 423        }
 424
 425        if (seg_distr[k] != -1)
 426                lut_params->arr_curve_points[k].segments_num = seg_distr[k];
 427
 428        rgb = rgb_resulted;
 429        rgb_plus_1 = rgb_resulted + 1;
 430
 431        i = 1;
 432        while (i != hw_points + 1) {
 433                if (dc_fixpt_lt(rgb_plus_1->red, rgb->red))
 434                        rgb_plus_1->red = rgb->red;
 435                if (dc_fixpt_lt(rgb_plus_1->green, rgb->green))
 436                        rgb_plus_1->green = rgb->green;
 437                if (dc_fixpt_lt(rgb_plus_1->blue, rgb->blue))
 438                        rgb_plus_1->blue = rgb->blue;
 439
 440                rgb->delta_red   = dc_fixpt_sub(rgb_plus_1->red,   rgb->red);
 441                rgb->delta_green = dc_fixpt_sub(rgb_plus_1->green, rgb->green);
 442                rgb->delta_blue  = dc_fixpt_sub(rgb_plus_1->blue,  rgb->blue);
 443
 444                ++rgb_plus_1;
 445                ++rgb;
 446                ++i;
 447        }
 448        cm3_helper_convert_to_custom_float(rgb_resulted,
 449                                                lut_params->corner_points,
 450                                                hw_points, false);
 451
 452        return true;
 453}
 454
 455bool cm3_helper_convert_to_custom_float(
 456                struct pwl_result_data *rgb_resulted,
 457                struct curve_points3 *corner_points,
 458                uint32_t hw_points_num,
 459                bool fixpoint)
 460{
 461        struct custom_float_format fmt;
 462
 463        struct pwl_result_data *rgb = rgb_resulted;
 464
 465        uint32_t i = 0;
 466
 467        fmt.exponenta_bits = 6;
 468        fmt.mantissa_bits = 12;
 469        fmt.sign = false;
 470
 471        /* corner_points[0] - beginning base, slope offset for R,G,B
 472         * corner_points[1] - end base, slope offset for R,G,B
 473         */
 474        if (!convert_to_custom_float_format(corner_points[0].red.x, &fmt,
 475                                &corner_points[0].red.custom_float_x)) {
 476                BREAK_TO_DEBUGGER();
 477                return false;
 478        }
 479        if (!convert_to_custom_float_format(corner_points[0].green.x, &fmt,
 480                                &corner_points[0].green.custom_float_x)) {
 481                BREAK_TO_DEBUGGER();
 482                return false;
 483        }
 484        if (!convert_to_custom_float_format(corner_points[0].blue.x, &fmt,
 485                                &corner_points[0].blue.custom_float_x)) {
 486                BREAK_TO_DEBUGGER();
 487                return false;
 488        }
 489
 490        if (!convert_to_custom_float_format(corner_points[0].red.offset, &fmt,
 491                                &corner_points[0].red.custom_float_offset)) {
 492                BREAK_TO_DEBUGGER();
 493                return false;
 494        }
 495        if (!convert_to_custom_float_format(corner_points[0].green.offset, &fmt,
 496                                &corner_points[0].green.custom_float_offset)) {
 497                BREAK_TO_DEBUGGER();
 498                return false;
 499        }
 500        if (!convert_to_custom_float_format(corner_points[0].blue.offset, &fmt,
 501                                &corner_points[0].blue.custom_float_offset)) {
 502                BREAK_TO_DEBUGGER();
 503                return false;
 504        }
 505
 506        if (!convert_to_custom_float_format(corner_points[0].red.slope, &fmt,
 507                                &corner_points[0].red.custom_float_slope)) {
 508                BREAK_TO_DEBUGGER();
 509                return false;
 510        }
 511        if (!convert_to_custom_float_format(corner_points[0].green.slope, &fmt,
 512                                &corner_points[0].green.custom_float_slope)) {
 513                BREAK_TO_DEBUGGER();
 514                return false;
 515        }
 516        if (!convert_to_custom_float_format(corner_points[0].blue.slope, &fmt,
 517                                &corner_points[0].blue.custom_float_slope)) {
 518                BREAK_TO_DEBUGGER();
 519                return false;
 520        }
 521
 522        if (fixpoint == true) {
 523                corner_points[1].red.custom_float_y =
 524                                dc_fixpt_clamp_u0d14(corner_points[1].red.y);
 525                corner_points[1].green.custom_float_y =
 526                                dc_fixpt_clamp_u0d14(corner_points[1].green.y);
 527                corner_points[1].blue.custom_float_y =
 528                                dc_fixpt_clamp_u0d14(corner_points[1].blue.y);
 529        } else {
 530                if (!convert_to_custom_float_format(corner_points[1].red.y,
 531                                &fmt, &corner_points[1].red.custom_float_y)) {
 532                        BREAK_TO_DEBUGGER();
 533                        return false;
 534                }
 535                if (!convert_to_custom_float_format(corner_points[1].green.y,
 536                                &fmt, &corner_points[1].green.custom_float_y)) {
 537                        BREAK_TO_DEBUGGER();
 538                        return false;
 539                }
 540                if (!convert_to_custom_float_format(corner_points[1].blue.y,
 541                                &fmt, &corner_points[1].blue.custom_float_y)) {
 542                        BREAK_TO_DEBUGGER();
 543                        return false;
 544                }
 545        }
 546
 547        fmt.mantissa_bits = 10;
 548        fmt.sign = false;
 549
 550        if (!convert_to_custom_float_format(corner_points[1].red.x, &fmt,
 551                                &corner_points[1].red.custom_float_x)) {
 552                BREAK_TO_DEBUGGER();
 553                return false;
 554        }
 555        if (!convert_to_custom_float_format(corner_points[1].green.x, &fmt,
 556                                &corner_points[1].green.custom_float_x)) {
 557                BREAK_TO_DEBUGGER();
 558                return false;
 559        }
 560        if (!convert_to_custom_float_format(corner_points[1].blue.x, &fmt,
 561                                &corner_points[1].blue.custom_float_x)) {
 562                BREAK_TO_DEBUGGER();
 563                return false;
 564        }
 565
 566        if (!convert_to_custom_float_format(corner_points[1].red.slope, &fmt,
 567                                &corner_points[1].red.custom_float_slope)) {
 568                BREAK_TO_DEBUGGER();
 569                return false;
 570        }
 571        if (!convert_to_custom_float_format(corner_points[1].green.slope, &fmt,
 572                                &corner_points[1].green.custom_float_slope)) {
 573                BREAK_TO_DEBUGGER();
 574                return false;
 575        }
 576        if (!convert_to_custom_float_format(corner_points[1].blue.slope, &fmt,
 577                                &corner_points[1].blue.custom_float_slope)) {
 578                BREAK_TO_DEBUGGER();
 579                return false;
 580        }
 581
 582        if (hw_points_num == 0 || rgb_resulted == NULL || fixpoint == true)
 583                return true;
 584
 585        fmt.mantissa_bits = 12;
 586
 587        while (i != hw_points_num) {
 588                if (!convert_to_custom_float_format(rgb->red, &fmt,
 589                                                    &rgb->red_reg)) {
 590                        BREAK_TO_DEBUGGER();
 591                        return false;
 592                }
 593
 594                if (!convert_to_custom_float_format(rgb->green, &fmt,
 595                                                    &rgb->green_reg)) {
 596                        BREAK_TO_DEBUGGER();
 597                        return false;
 598                }
 599
 600                if (!convert_to_custom_float_format(rgb->blue, &fmt,
 601                                                    &rgb->blue_reg)) {
 602                        BREAK_TO_DEBUGGER();
 603                        return false;
 604                }
 605
 606                if (!convert_to_custom_float_format(rgb->delta_red, &fmt,
 607                                                    &rgb->delta_red_reg)) {
 608                        BREAK_TO_DEBUGGER();
 609                        return false;
 610                }
 611
 612                if (!convert_to_custom_float_format(rgb->delta_green, &fmt,
 613                                                    &rgb->delta_green_reg)) {
 614                        BREAK_TO_DEBUGGER();
 615                        return false;
 616                }
 617
 618                if (!convert_to_custom_float_format(rgb->delta_blue, &fmt,
 619                                                    &rgb->delta_blue_reg)) {
 620                        BREAK_TO_DEBUGGER();
 621                        return false;
 622                }
 623
 624                ++rgb;
 625                ++i;
 626        }
 627
 628        return true;
 629}
 630
 631bool is_rgb_equal(const struct pwl_result_data *rgb, uint32_t num)
 632{
 633        uint32_t i;
 634        bool ret = true;
 635
 636        for (i = 0 ; i < num; i++) {
 637                if (rgb[i].red_reg != rgb[i].green_reg ||
 638                rgb[i].blue_reg != rgb[i].red_reg  ||
 639                rgb[i].blue_reg != rgb[i].green_reg) {
 640                        ret = false;
 641                        break;
 642                }
 643        }
 644        return ret;
 645}
 646
 647