drivers/gpu/drm/amd/display/dc/dcn30/dcn30_cm_common.c

   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
  43 void 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
 108 bool 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
 309 bool 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
 455 bool 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
 631 bool 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