1 // SPDX-License-Identifier: MIT 2 // 3 // Copyright 2026 Advanced Micro Devices, Inc. 4 5 #include "dm_services.h" 6 #include "dc.h" 7 #include "mod_power.h" 8 #include "core_types.h" 9 #include "dmcu.h" 10 #include "abm.h" 11 #include "power_helpers.h" 12 #include "dce/dmub_psr.h" 13 #include "dal_asic_id.h" 14 #include "link_service.h" 15 #include <linux/math.h> 16 17 #define DC_TRACE_LEVEL_MESSAGE(...) /* do nothing */ 18 #define DC_TRACE_LEVEL_MESSAGEP(...) /* do nothing */ 19 20 #define DIV_ROUNDUP(a, b) (((a)+((b)/2))/(b)) 21 #define bswap16_based_on_endian(big_endian, value) \ 22 ((big_endian) ? cpu_to_be16(value) : cpu_to_le16(value)) 23 24 /* Possible Min Reduction config from least aggressive to most aggressive 25 * 0 1 2 3 4 5 6 7 8 9 10 11 12 26 * 100 98.0 94.1 94.1 85.1 80.3 75.3 69.4 60.0 57.6 50.2 49.8 40.0 % 27 */ 28 static const unsigned char min_reduction_table[13] = { 29 0xff, 0xfa, 0xf0, 0xf0, 0xd9, 0xcd, 0xc0, 0xb1, 0x99, 0x93, 0x80, 0x82, 0x66}; 30 31 /* Possible Max Reduction configs from least aggressive to most aggressive 32 * 0 1 2 3 4 5 6 7 8 9 10 11 12 33 * 96.1 89.8 85.1 80.3 69.4 64.7 64.7 50.2 39.6 30.2 30.2 30.2 19.6 % 34 */ 35 static const unsigned char max_reduction_table[13] = { 36 0xf5, 0xe5, 0xd9, 0xcd, 0xb1, 0xa5, 0xa5, 0x80, 0x65, 0x4d, 0x4d, 0x4d, 0x32}; 37 38 /* Possible ABM 2.2 Min Reduction configs from least aggressive to most aggressive 39 * 0 1 2 3 4 5 6 7 8 9 10 11 12 40 * 100 100 100 100 100 100 100 100 100 92.2 83.1 75.3 75.3 % 41 */ 42 static const unsigned char min_reduction_table_v_2_2[13] = { 43 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xeb, 0xd4, 0xc0, 0xc0}; 44 45 /* Possible ABM 2.2 Max Reduction configs from least aggressive to most aggressive 46 * 0 1 2 3 4 5 6 7 8 9 10 11 12 47 * 96.1 89.8 74.9 69.4 64.7 52.2 48.6 39.6 30.2 25.1 19.6 12.5 12.5 % 48 */ 49 static const unsigned char max_reduction_table_v_2_2[13] = { 50 0xf5, 0xe5, 0xbf, 0xb1, 0xa5, 0x85, 0x7c, 0x65, 0x4d, 0x40, 0x32, 0x20, 0x20}; 51 52 /* Predefined ABM configuration sets. We may have different configuration sets 53 * in order to satisfy different power/quality requirements. 54 */ 55 static const unsigned char abm_config[abm_defines_max_config][abm_defines_max_level] = { 56 /* ABM Level 1, ABM Level 2, ABM Level 3, ABM Level 4 */ 57 { 2, 5, 7, 8 }, /* Default - Medium aggressiveness */ 58 { 2, 5, 8, 11 }, /* Alt #1 - Increased aggressiveness */ 59 { 0, 2, 4, 8 }, /* Alt #2 - Minimal aggressiveness */ 60 { 3, 6, 10, 12 }, /* Alt #3 - Super aggressiveness */ 61 }; 62 63 struct abm_parameters { 64 unsigned char min_reduction; 65 unsigned char max_reduction; 66 unsigned char bright_pos_gain; 67 unsigned char dark_pos_gain; 68 unsigned char brightness_gain; 69 unsigned char contrast_factor; 70 unsigned char deviation_gain; 71 unsigned char min_knee; 72 unsigned char max_knee; 73 unsigned short blRampReduction; 74 unsigned short blRampStart; 75 }; 76 77 static const struct abm_parameters abm_settings_config0[abm_defines_max_level] = { 78 // min_red max_red bright_pos dark_pos bright_gain contrast dev min_knee max_knee blRed blStart 79 {0xff, 0xbf, 0x20, 0x00, 0xff, 0x99, 0xb3, 0x40, 0xe0, 0xf777, 0xcccc}, 80 {0xde, 0x85, 0x20, 0x00, 0xe0, 0x90, 0xa8, 0x40, 0xc8, 0xf777, 0xcccc}, 81 {0xb0, 0x50, 0x20, 0x00, 0xc0, 0x88, 0x78, 0x70, 0xa0, 0xeeee, 0x9999}, 82 {0x82, 0x40, 0x20, 0x00, 0x00, 0xb8, 0xb3, 0x70, 0x70, 0xe333, 0xb333}, 83 }; 84 85 static const struct abm_parameters abm_settings_config1[abm_defines_max_level] = { 86 // min_red max_red bright_pos dark_pos bright_gain contrast dev min_knee max_knee blRed blStart 87 {0xf0, 0xd9, 0x20, 0x00, 0x00, 0xff, 0xb3, 0x70, 0x70, 0xcccc, 0xcccc}, 88 {0xcd, 0xa5, 0x20, 0x00, 0x00, 0xff, 0xb3, 0x70, 0x70, 0xcccc, 0xcccc}, 89 {0x99, 0x65, 0x20, 0x00, 0x00, 0xff, 0xb3, 0x70, 0x70, 0xcccc, 0xcccc}, 90 {0x82, 0x4d, 0x20, 0x00, 0x00, 0xff, 0xb3, 0x70, 0x70, 0xcccc, 0xcccc}, 91 }; 92 93 static const struct abm_parameters abm_settings_config2[abm_defines_max_level] = { 94 // min_red max_red bright_pos dark_pos bright_gain contrast dev min_knee max_knee blRed blStart 95 {0xf0, 0xbf, 0x20, 0x00, 0x88, 0x99, 0xb3, 0x40, 0xe0, 0x0000, 0xcccc}, 96 {0xd8, 0x85, 0x20, 0x00, 0x70, 0x90, 0xa8, 0x40, 0xc8, 0x0700, 0xb333}, 97 {0xb8, 0x58, 0x20, 0x00, 0x64, 0x88, 0x78, 0x70, 0xa0, 0x7000, 0x9999}, 98 {0x82, 0x40, 0x20, 0x00, 0x00, 0xb8, 0xb3, 0x70, 0x70, 0xc333, 0xb333}, 99 }; 100 101 static const struct abm_parameters * const abm_settings[] = { 102 abm_settings_config0, 103 abm_settings_config1, 104 abm_settings_config2, 105 }; 106 107 static const struct dm_bl_data_point custom_backlight_curve0[] = { 108 {2, 14}, {4, 16}, {6, 18}, {8, 21}, {10, 23}, {12, 26}, {14, 29}, {16, 32}, {18, 35}, 109 {20, 38}, {22, 41}, {24, 44}, {26, 48}, {28, 52}, {30, 55}, {32, 59}, {34, 62}, 110 {36, 67}, {38, 71}, {40, 75}, {42, 80}, {44, 84}, {46, 88}, {48, 93}, {50, 98}, 111 {52, 103}, {54, 108}, {56, 113}, {58, 118}, {60, 123}, {62, 129}, {64, 135}, {66, 140}, 112 {68, 146}, {70, 152}, {72, 158}, {74, 164}, {76, 171}, {78, 177}, {80, 183}, {82, 190}, 113 {84, 197}, {86, 204}, {88, 211}, {90, 218}, {92, 225}, {94, 232}, {96, 240}, {98, 247}}; 114 115 struct custom_backlight_profile { 116 uint8_t ac_level_percentage; 117 uint8_t dc_level_percentage; 118 uint8_t min_input_signal; 119 uint8_t max_input_signal; 120 uint8_t num_data_points; 121 const struct dm_bl_data_point *data_points; 122 }; 123 124 static const struct custom_backlight_profile custom_backlight_profiles[] = { 125 {100, 32, 12, 255, ARRAY_SIZE(custom_backlight_curve0), custom_backlight_curve0}, 126 }; 127 128 #define NUM_AMBI_LEVEL 5 129 #define NUM_AGGR_LEVEL 4 130 #define NUM_POWER_FN_SEGS 8 131 #define NUM_BL_CURVE_SEGS 16 132 #define IRAM_SIZE 256 133 134 #define IRAM_RESERVE_AREA_START_V2 0xF0 // reserve 0xF0~0xF6 are write by DMCU only 135 #define IRAM_RESERVE_AREA_END_V2 0xF6 // reserve 0xF0~0xF6 are write by DMCU only 136 137 #define IRAM_RESERVE_AREA_START_V2_2 0xF0 // reserve 0xF0~0xFF are write by DMCU only 138 #define IRAM_RESERVE_AREA_END_V2_2 0xFF // reserve 0xF0~0xFF are write by DMCU only 139 140 #pragma pack(push, 1) 141 /* NOTE: iRAM is 256B in size */ 142 struct iram_table_v_2 { 143 /* flags */ 144 uint16_t min_abm_backlight; /* 0x00 U16 */ 145 146 /* parameters for ABM2.0 algorithm */ 147 uint8_t min_reduction[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; /* 0x02 U0.8 */ 148 uint8_t max_reduction[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; /* 0x16 U0.8 */ 149 uint8_t bright_pos_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; /* 0x2a U2.6 */ 150 uint8_t bright_neg_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; /* 0x3e U2.6 */ 151 uint8_t dark_pos_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; /* 0x52 U2.6 */ 152 uint8_t dark_neg_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; /* 0x66 U2.6 */ 153 uint8_t iir_curve[NUM_AMBI_LEVEL]; /* 0x7a U0.8 */ 154 uint8_t deviation_gain; /* 0x7f U0.8 */ 155 156 /* parameters for crgb conversion */ 157 uint16_t crgb_thresh[NUM_POWER_FN_SEGS]; /* 0x80 U3.13 */ 158 uint16_t crgb_offset[NUM_POWER_FN_SEGS]; /* 0x90 U1.15 */ 159 uint16_t crgb_slope[NUM_POWER_FN_SEGS]; /* 0xa0 U4.12 */ 160 161 /* parameters for custom curve */ 162 /* thresholds for brightness --> backlight */ 163 uint16_t backlight_thresholds[NUM_BL_CURVE_SEGS]; /* 0xb0 U16.0 */ 164 /* offsets for brightness --> backlight */ 165 uint16_t backlight_offsets[NUM_BL_CURVE_SEGS]; /* 0xd0 U16.0 */ 166 167 /* For reading PSR State directly from IRAM */ 168 uint8_t psr_state; /* 0xf0 */ 169 uint8_t dmcu_mcp_interface_version; /* 0xf1 */ 170 uint8_t dmcu_abm_feature_version; /* 0xf2 */ 171 uint8_t dmcu_psr_feature_version; /* 0xf3 */ 172 uint16_t dmcu_version; /* 0xf4 */ 173 uint8_t dmcu_state; /* 0xf6 */ 174 175 uint16_t blRampReduction; /* 0xf7 */ 176 uint16_t blRampStart; /* 0xf9 */ 177 uint8_t dummy5; /* 0xfb */ 178 uint8_t dummy6; /* 0xfc */ 179 uint8_t dummy7; /* 0xfd */ 180 uint8_t dummy8; /* 0xfe */ 181 uint8_t dummy9; /* 0xff */ 182 }; 183 184 struct iram_table_v_2_2 { 185 /* flags */ 186 uint16_t flags; /* 0x00 U16 */ 187 188 /* parameters for ABM2.2 algorithm */ 189 uint8_t min_reduction[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; /* 0x02 U0.8 */ 190 uint8_t max_reduction[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; /* 0x16 U0.8 */ 191 uint8_t bright_pos_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; /* 0x2a U2.6 */ 192 uint8_t dark_pos_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; /* 0x3e U2.6 */ 193 uint8_t hybrid_factor[NUM_AGGR_LEVEL]; /* 0x52 U0.8 */ 194 uint8_t contrast_factor[NUM_AGGR_LEVEL]; /* 0x56 U0.8 */ 195 uint8_t deviation_gain[NUM_AGGR_LEVEL]; /* 0x5a U0.8 */ 196 uint8_t iir_curve[NUM_AMBI_LEVEL]; /* 0x5e U0.8 */ 197 uint8_t min_knee[NUM_AGGR_LEVEL]; /* 0x63 U0.8 */ 198 uint8_t max_knee[NUM_AGGR_LEVEL]; /* 0x67 U0.8 */ 199 uint16_t min_abm_backlight; /* 0x6b U16 */ 200 uint8_t pad[19]; /* 0x6d U0.8 */ 201 202 /* parameters for crgb conversion */ 203 uint16_t crgb_thresh[NUM_POWER_FN_SEGS]; /* 0x80 U3.13 */ 204 uint16_t crgb_offset[NUM_POWER_FN_SEGS]; /* 0x90 U1.15 */ 205 uint16_t crgb_slope[NUM_POWER_FN_SEGS]; /* 0xa0 U4.12 */ 206 207 /* parameters for custom curve */ 208 /* thresholds for brightness --> backlight */ 209 uint16_t backlight_thresholds[NUM_BL_CURVE_SEGS]; /* 0xb0 U16.0 */ 210 /* offsets for brightness --> backlight */ 211 uint16_t backlight_offsets[NUM_BL_CURVE_SEGS]; /* 0xd0 U16.0 */ 212 213 /* For reading PSR State directly from IRAM */ 214 uint8_t psr_state; /* 0xf0 */ 215 uint8_t dmcu_mcp_interface_version; /* 0xf1 */ 216 uint8_t dmcu_abm_feature_version; /* 0xf2 */ 217 uint8_t dmcu_psr_feature_version; /* 0xf3 */ 218 uint16_t dmcu_version; /* 0xf4 */ 219 uint8_t dmcu_state; /* 0xf6 */ 220 221 uint8_t dummy1; /* 0xf7 */ 222 uint8_t dummy2; /* 0xf8 */ 223 uint8_t dummy3; /* 0xf9 */ 224 uint8_t dummy4; /* 0xfa */ 225 uint8_t dummy5; /* 0xfb */ 226 uint8_t dummy6; /* 0xfc */ 227 uint8_t dummy7; /* 0xfd */ 228 uint8_t dummy8; /* 0xfe */ 229 uint8_t dummy9; /* 0xff */ 230 }; 231 #pragma pack(pop) 232 233 #define MOD_POWER_MAX_CONCURRENT_STREAMS 32 234 #define SMOOTH_BRIGHTNESS_ADJUSTMENT_TIME_IN_MS 500 235 236 /* If system or panel does not report some sort of brightness percent to nits 237 * mapping, we will use following default values so backlight control using 238 * nits based interfaces will still work, but might not describe panel 239 * correctly. In this case percentage based backlight control should ideally 240 * be used. 241 * Min = 5 nits 242 * Max = 300 nits 243 */ 244 245 #define MOD_POWER_TO_CORE(mod_power)\ 246 container_of(mod_power, struct core_power, mod_public) 247 248 static uint16_t backlight_8_to_16(unsigned int backlight_8bit) 249 { 250 return (uint16_t)(backlight_8bit * 0x101); 251 } 252 253 unsigned int backlight_millipercent_to_millinit( 254 struct core_power *core_power, unsigned int millipercent, unsigned int inst) 255 { 256 unsigned int millinit = 0; 257 unsigned long long numerator = 0; 258 259 if (core_power == NULL) 260 return 0; 261 262 numerator = ((unsigned long long)millipercent) * 263 core_power->bl_prop[inst].nits_range; 264 millinit = ((unsigned int)div_u64(numerator, 100000)) + 265 core_power->bl_prop[inst].min_brightness_millinits; 266 267 return millinit; 268 } 269 270 static unsigned int backlight_millinit_to_millipercent( 271 struct core_power *core_power, unsigned int millinit, unsigned int inst) 272 { 273 unsigned int millipercent = 0; 274 unsigned long long numerator = 0; 275 276 if (core_power == NULL) 277 return 0; 278 279 if (millinit <= core_power->bl_prop[inst].min_brightness_millinits) 280 return 0; 281 282 if (millinit >= core_power->bl_prop[inst].max_brightness_millinits) 283 return (100 * 1000); 284 285 numerator = (((unsigned long long)millinit) - 286 core_power->bl_prop[inst].min_brightness_millinits) * 100000; 287 millipercent = ((unsigned int)div_u64(numerator, 288 core_power->bl_prop[inst].nits_range)); 289 290 return millipercent; 291 } 292 293 static unsigned int backlight_pwm_to_millipercent( 294 struct core_power *core_power, unsigned int pwm, unsigned int inst) 295 { 296 unsigned int millipercent = 0; 297 unsigned int max_index = 0; 298 299 if (core_power == NULL) 300 return 0; 301 302 if (!core_power->bl_prop[inst].backlight_caps_valid) 303 return 0; 304 305 /* Doesn't really make sense to have one single backlight level 306 * possible... 307 */ 308 if (core_power->bl_prop[inst].num_backlight_levels < 2) 309 return 0; 310 311 max_index = core_power->bl_prop[inst].num_backlight_levels - 1; 312 313 if (pwm <= core_power->bl_prop[inst].backlight_lut[0]) 314 return 0; 315 316 if (pwm > core_power->bl_prop[inst].backlight_lut[max_index]) 317 return (100 * 1000); 318 319 /* We need to do a binary search over the array for where the pwm level 320 * is in the lut. Based on the index we can determine percentage. 321 */ 322 unsigned int min = 0; 323 unsigned int max = max_index; 324 unsigned int mid = 0; 325 326 while (max >= min) { 327 mid = (min + max) / 2; /* floor of half range */ 328 329 if (core_power->bl_prop[inst].backlight_lut[mid] < pwm) 330 min = mid + 1; 331 else if (core_power->bl_prop[inst].backlight_lut[mid] > pwm) 332 max = mid - 1; 333 else 334 break; 335 } 336 337 /* In this case, exact match is not found. Check if mid/min/max 338 * value is actually closer. 339 */ 340 if (max < min) { 341 unsigned int min_delta; 342 unsigned int mid_delta; 343 unsigned int max_delta; 344 345 min_delta = (core_power->bl_prop[inst].backlight_lut[min] > pwm) ? 346 core_power->bl_prop[inst].backlight_lut[min] - pwm : 347 pwm - core_power->bl_prop[inst].backlight_lut[min]; 348 349 mid_delta = (core_power->bl_prop[inst].backlight_lut[mid] > pwm) ? 350 core_power->bl_prop[inst].backlight_lut[mid] - pwm : 351 pwm - core_power->bl_prop[inst].backlight_lut[mid]; 352 353 max_delta = (core_power->bl_prop[inst].backlight_lut[max] > pwm) ? 354 core_power->bl_prop[inst].backlight_lut[max] - pwm : 355 pwm - core_power->bl_prop[inst].backlight_lut[max]; 356 357 if ((min_delta < mid_delta) && (min_delta < max_delta)) 358 mid = min; 359 360 if ((max_delta < mid_delta) && (max_delta < min_delta)) 361 mid = max; 362 } 363 364 /* No interpolation, just take closest index */ 365 millipercent = 1000 * 100 * mid / max_index; 366 367 return millipercent; 368 } 369 370 static unsigned int backlight_pwm_to_millinit( 371 struct core_power *core_power, unsigned int pwm, unsigned int inst) 372 { 373 unsigned int millinit = 0; 374 375 if (core_power == NULL) 376 return 0; 377 378 if (pwm <= core_power->bl_prop[inst].min_backlight_pwm) 379 return core_power->bl_prop[inst].min_brightness_millinits; 380 381 if (pwm >= core_power->bl_prop[inst].max_backlight_pwm) 382 return core_power->bl_prop[inst].max_brightness_millinits; 383 384 millinit = ((unsigned int)div_u64(((unsigned long long)pwm - 385 core_power->bl_prop[inst].min_backlight_pwm) * 386 core_power->bl_prop[inst].nits_range, 387 core_power->bl_prop[inst].backlight_range)); 388 389 millinit += core_power->bl_prop[inst].min_brightness_millinits; 390 391 if (millinit > core_power->bl_prop[inst].max_brightness_millinits) 392 millinit = core_power->bl_prop[inst].max_brightness_millinits; 393 394 return millinit; 395 } 396 397 unsigned int backlight_millipercent_to_pwm( 398 struct core_power *core_power, unsigned int millipercent, unsigned int inst) 399 { 400 unsigned int pwm = (unsigned int)-1; 401 unsigned int index = 0; 402 403 if (core_power == NULL) 404 return 0; 405 406 // Bypass the brightness mapping LUT 407 if (core_power->bl_prop->use_linear_backlight_curve) { 408 pwm = core_power->bl_prop[inst].min_backlight_pwm + 409 (unsigned int) div_u64((unsigned long long) millipercent * 410 core_power->bl_prop[inst].backlight_range, 411 100000); 412 413 if (pwm > core_power->bl_prop[inst].max_backlight_pwm) 414 pwm = core_power->bl_prop[inst].max_backlight_pwm; 415 416 return pwm; 417 } 418 419 if (millipercent >= (100 * 1000)) 420 return core_power->bl_prop[inst].backlight_lut[core_power->bl_prop[inst].num_backlight_levels - 1]; 421 422 /* This will give the floor index. */ 423 index = ((core_power->bl_prop[inst].num_backlight_levels - 1) * 424 millipercent) / 100000; 425 /* Null check otherwise eDP doesn't lightup when connected to DP1 */ 426 if (core_power->bl_prop[inst].backlight_lut == NULL) 427 return pwm; 428 429 pwm = core_power->bl_prop[inst].backlight_lut[index]; 430 431 return pwm; 432 } 433 434 static unsigned int backlight_millinit_to_pwm( 435 struct core_power *core_power, unsigned int millinit, unsigned int inst) 436 { 437 unsigned int pwm = 0; 438 439 if (core_power == NULL) 440 return 0; 441 442 /* For nits based brightness, the signal will be a value 443 * between the minimum and maximum value. 444 */ 445 if (millinit >= core_power->bl_prop[inst].max_brightness_millinits) 446 return core_power->bl_prop[inst].max_backlight_pwm; 447 else if (millinit <= core_power->bl_prop[inst].min_brightness_millinits) 448 return core_power->bl_prop[inst].min_backlight_pwm; 449 450 pwm = ((unsigned int)div_u64(((unsigned long long)millinit - 451 core_power->bl_prop[inst].min_brightness_millinits) * 452 core_power->bl_prop[inst].backlight_range, 453 core_power->bl_prop[inst].nits_range)); 454 455 pwm += core_power->bl_prop[inst].min_backlight_pwm; 456 457 if (pwm > core_power->bl_prop[inst].max_backlight_pwm) 458 pwm = core_power->bl_prop[inst].max_backlight_pwm; 459 460 return pwm; 461 } 462 463 static bool validate_ext_backlight_caps( 464 struct dm_acpi_atif_backlight_caps *ext_backlight_caps) 465 { 466 unsigned int i; 467 unsigned int num_of_data_points = 0; 468 unsigned int last_signal_level = 0; 469 unsigned int last_luminance = 0; 470 471 num_of_data_points = ext_backlight_caps->num_data_points; 472 473 /* Validation rules: 474 * 1. BIOS should carry customized data points and 475 * the number of data points should not be larger than 99. 476 * 2. The max_input_signal should be larger than min_input_signal. 477 * 3. For each data point: 478 * a. luminance should be in ascending order and 479 * should not be 0 or 100 since the corresponding signal_level 480 * are assigned by min_input_signal and max_input_signal. 481 * b. signal_level should be in ascending order and 482 * be within the range of min/max_input_signal. 483 */ 484 if (num_of_data_points > BL_DATA_POINTS) 485 return false; 486 487 if (ext_backlight_caps->min_input_signal >= ext_backlight_caps->max_input_signal) 488 return false; 489 490 last_signal_level = ext_backlight_caps->min_input_signal; 491 for (i = 0; i < num_of_data_points; i++) { 492 unsigned int luminance = ext_backlight_caps->data_points[i].luminance; 493 unsigned int signal_level = ext_backlight_caps->data_points[i].signal_level; 494 495 if ((luminance <= last_luminance) || (luminance > BL_DATA_POINTS)) 496 return false; 497 498 if ((signal_level <= last_signal_level) || (signal_level >= ext_backlight_caps->max_input_signal)) 499 return false; 500 501 last_signal_level = signal_level; 502 last_luminance = luminance; 503 } 504 505 return true; 506 } 507 508 /* hard coded to default backlight curve. */ 509 void initialize_backlight_caps(struct core_power *core_power, unsigned int inst) 510 { 511 unsigned int i; 512 struct dm_acpi_atif_backlight_caps *ext_backlight_caps = NULL; 513 bool custom_curve_present = false; 514 unsigned int num_levels = 0; 515 struct dc *dc = NULL; 516 enum dm_acpi_display_type acpi_display_type = 517 (inst == 0) ? AcpiDisplayType_LCD1 : AcpiDisplayType_LCD2; 518 519 if (core_power == NULL) 520 return; 521 dc = core_power->dc; 522 523 num_levels = core_power->bl_prop[inst].num_backlight_levels; 524 525 /* Allocate memory for ATIF output 526 * (do not want to use 256 bytes on the stack) 527 */ 528 ext_backlight_caps = (struct dm_acpi_atif_backlight_caps *) 529 (kzalloc(sizeof(struct dm_acpi_atif_backlight_caps), 530 GFP_KERNEL)); 531 532 if (ext_backlight_caps == NULL) 533 return; 534 535 /* Retrieve ACPI extended brightness caps */ 536 if (dm_query_extended_brightness_caps 537 (dc->ctx, acpi_display_type, ext_backlight_caps)) { 538 custom_curve_present = validate_ext_backlight_caps(ext_backlight_caps); 539 } 540 541 if (core_power->bl_prop[inst].use_custom_backlight_caps && 542 fill_custom_backlight_caps( 543 core_power->bl_prop[inst].custom_backlight_caps_config_no, 544 ext_backlight_caps)) { 545 custom_curve_present = validate_ext_backlight_caps(ext_backlight_caps); 546 } 547 548 if (custom_curve_present) { 549 unsigned int index = 1; 550 unsigned int num_of_data_points = ext_backlight_caps->num_data_points; 551 552 core_power->bl_prop[inst].ac_backlight_percent = 553 ext_backlight_caps->ac_level_percentage; 554 core_power->bl_prop[inst].dc_backlight_percent = 555 ext_backlight_caps->dc_level_percentage; 556 core_power->bl_prop[inst].backlight_lut[0] = 557 backlight_8_to_16( 558 ext_backlight_caps->min_input_signal); 559 core_power->bl_prop[inst].backlight_lut[num_levels - 1] = 560 backlight_8_to_16( 561 ext_backlight_caps->max_input_signal); 562 563 /* Filling translation table from data points - 564 * between every two provided data points we 565 * lineary interpolate missing values 566 */ 567 for (i = 0; i < num_of_data_points; i++) { 568 unsigned int luminance = 569 ext_backlight_caps->data_points[i].luminance; 570 unsigned int signal_level = 571 backlight_8_to_16( 572 ext_backlight_caps->data_points[i].signal_level); 573 574 /* Since luminance is a percentage, scale it by num_levels*/ 575 luminance = (luminance * num_levels) / 101; 576 577 /* Lineary interpolate missing values */ 578 if (index < luminance) { 579 unsigned int base_value = 580 core_power->bl_prop[inst].backlight_lut[index-1]; 581 unsigned int delta_signal = 582 signal_level - base_value; 583 unsigned int delta_luma = 584 luminance - index + 1; 585 unsigned int step = delta_signal; 586 587 for (; index < luminance; index++) { 588 core_power->bl_prop[inst].backlight_lut[index] = 589 base_value + (step / delta_luma); 590 step += delta_signal; 591 } 592 } 593 594 /* Now [index == luminance], 595 * so we can add data point to the translation table 596 */ 597 core_power->bl_prop[inst].backlight_lut[index++] = signal_level; 598 } 599 600 /* Complete the final segment of interpolation - 601 * between last datapoint and maximum value 602 */ 603 if (index < num_levels - 1) { 604 unsigned int base_value = 605 core_power->bl_prop[inst].backlight_lut[index-1]; 606 unsigned int delta_signal = 607 core_power->bl_prop[inst].backlight_lut[num_levels - 1] - 608 base_value; 609 unsigned int delta_luma = num_levels - index; 610 unsigned int step = delta_signal; 611 612 for (; index < num_levels - 1; index++) { 613 core_power->bl_prop[inst].backlight_lut[index] = 614 base_value + (step / delta_luma); 615 step += delta_signal; 616 } 617 } 618 /* Build backlight translation table based on default curve */ 619 } else { 620 /* Defines default backlight curve F(x) = A(x*x) + Bx + C. 621 * 622 * Backlight curve should always satisfy: 623 * F(0) = min, F(100) = max, 624 * So polynom coefficients are: 625 * A is 0.0255 - B/100 - min/10000 - (255-max)/10000 = 626 * (max - min)/10000 - B/100 627 * B is adjustable factor to modify the curve. 628 * Bigger B results in less concave curve. 629 * B range is [0..(max-min)/100] 630 * C is backlight minimum 631 */ 632 unsigned int backlight_curve_coeff_a_factor = 633 num_levels * num_levels; 634 unsigned int backlight_curve_coeff_b = num_levels; 635 unsigned int delta = 636 core_power->bl_prop[inst].backlight_lut[num_levels - 1] - 637 core_power->bl_prop[inst].backlight_lut[0]; 638 unsigned int coeffC = core_power->bl_prop[inst].backlight_lut[0]; 639 unsigned int coeffB = 640 (backlight_curve_coeff_b < delta ? 641 backlight_curve_coeff_b : delta); 642 unsigned long long coeffA = delta - coeffB; /* coeffB is B*100 */ 643 644 for (i = 1; i < num_levels - 1; i++) { 645 uint64_t lut_val = div_u64(coeffA * i * i, backlight_curve_coeff_a_factor) + 646 div_u64((uint64_t)coeffB * i, backlight_curve_coeff_b) + coeffC; 647 648 ASSERT(lut_val <= 0xFFFFFFFF); 649 core_power->bl_prop[inst].backlight_lut[i] = (unsigned int)lut_val; 650 } 651 } 652 653 if (ext_backlight_caps != NULL) 654 kfree(ext_backlight_caps); 655 656 /* Successfully initialized */ 657 core_power->bl_prop[inst].backlight_caps_valid = true; 658 } 659 660 static void varibright_set_level(struct core_power *core_power) 661 { 662 if (!core_power->varibright_prop.varibright_active || 663 !core_power->varibright_prop.varibright_user_enable) 664 core_power->varibright_prop.varibright_hw_level = 0; 665 else 666 core_power->varibright_prop.varibright_hw_level = 667 core_power->varibright_prop.varibright_level; 668 } 669 670 bool mod_power_hw_init_backlight(struct mod_power *mod_power) 671 { 672 struct core_power *core_power = NULL; 673 struct dc *dc = NULL; 674 struct dmcu *dmcu = NULL; 675 struct dmcu_iram_parameters params; 676 unsigned int i; 677 678 if (mod_power == NULL) 679 return false; 680 681 core_power = MOD_POWER_TO_CORE(mod_power); 682 dc = core_power->dc; 683 684 for (i = 0; i < core_power->edp_num; i++) { 685 params.set = core_power->varibright_prop.varibright_config_setting; 686 params.backlight_ramping_override = core_power->bl_prop[i].backlight_ramping_override; 687 params.backlight_ramping_reduction = core_power->bl_prop[i].backlight_ramping_reduction; 688 params.backlight_ramping_start = core_power->bl_prop[i].backlight_ramping_start; 689 params.backlight_lut_array = core_power->bl_prop[i].backlight_lut; 690 params.backlight_lut_array_size = core_power->bl_prop[i].num_backlight_levels; 691 params.min_abm_backlight = core_power->bl_prop[i].min_abm_backlight; 692 693 dmcu = dc->res_pool->dmcu; 694 695 // In the case where abm is implemented on dmcub, 696 // dmcu object will be null. 697 // ABM 2.4 and up are implemented on dmcub. 698 if (dmcu) { 699 //DMCU does not support multiple eDP 700 return dmcu_load_iram(dmcu, params); 701 } else if (dc->ctx->dmub_srv) { 702 if (!dmub_init_abm_config(dc->res_pool, params, i)) 703 return false; 704 } else 705 return false; 706 } 707 return true; 708 } 709 710 void mod_power_update_backlight_on_mode_change( 711 struct core_power *core_power, 712 struct dc_link *link, 713 unsigned int panel_inst, 714 uint8_t aux_inst, 715 bool is_hdr) 716 { 717 struct set_backlight_level_params backlight_level_params = { 0 }; 718 719 if (link->dpcd_sink_ext_caps.bits.hdr_aux_backlight_control == 1 || 720 link->dpcd_sink_ext_caps.bits.sdr_aux_backlight_control == 1) 721 dc_link_set_backlight_level_nits(link, core_power->bl_state[panel_inst].isHDR, 722 core_power->bl_state[panel_inst].backlight_millinit, 0); 723 724 backlight_level_params.frame_ramp = 0; 725 726 fill_backlight_level_params(core_power, &backlight_level_params, panel_inst, aux_inst, 727 core_power->bl_state[panel_inst].backlight_pwm, link->backlight_control_type, 728 core_power->bl_state[panel_inst].backlight_millinit, 0, is_hdr); 729 730 dc_link_set_backlight_level(link, &backlight_level_params); 731 } 732 733 static bool set_backlight_millinits_aux(struct core_power *core_power, 734 struct dc_stream_state *stream, 735 unsigned int backlight_millinits, 736 unsigned int transition_time_millisec, 737 unsigned int inst) 738 { 739 struct dc_link *link = NULL; 740 741 if (core_power == NULL) 742 return false; 743 744 if (stream == NULL) 745 return true; 746 747 link = dc_stream_get_link(stream); 748 749 return dc_link_set_backlight_level_nits(link, core_power->bl_state[inst].isHDR, 750 backlight_millinits, transition_time_millisec); 751 } 752 753 static bool set_backlight(struct core_power *core_power, 754 struct dc_stream_state *stream, 755 struct set_backlight_level_params *backlight_level_params, 756 unsigned int inst) 757 { 758 bool retv = false; 759 unsigned int frame_ramp = 0; 760 unsigned int vsync_rate_hz; 761 union dmcu_abm_set_bl_params params; 762 const struct dc_link *link = NULL; 763 unsigned int backlight_pwm_u16_16 = backlight_level_params->backlight_pwm_u16_16; 764 unsigned int transition_time_millisec = backlight_level_params->transition_time_in_ms; 765 766 if (core_power == NULL) 767 return false; 768 769 core_power->bl_state[inst].backlight_pwm = backlight_pwm_u16_16; 770 771 if (stream == NULL) 772 return true; 773 774 if (stream->link->connector_signal != SIGNAL_TYPE_EDP) 775 return false; 776 777 if (transition_time_millisec != 0) { 778 unsigned int v_total = 779 (stream->adjust.v_total_max == 0) ? stream->timing.v_total : stream->adjust.v_total_max; 780 781 vsync_rate_hz = (unsigned int)div_u64(div_u64((stream-> 782 timing.pix_clk_100hz * 100), 783 v_total), 784 stream->timing.h_total); 785 786 if (core_power->bl_state[inst].smooth_brightness_enabled) 787 frame_ramp = ((vsync_rate_hz * 788 transition_time_millisec) + 500) / 1000; 789 } 790 791 core_power->bl_state[inst].frame_ramp = frame_ramp; 792 params.u32All = 0; 793 params.bits.gradual_change = (frame_ramp > 0); 794 params.bits.frame_ramp = frame_ramp; 795 link = dc_stream_get_link(stream); 796 797 mod_power_set_psr_event(&core_power->mod_public, stream, true, psr_event_hw_programming, true); 798 mod_power_set_replay_event(&core_power->mod_public, stream, true, replay_event_hw_programming, true); 799 800 backlight_level_params->frame_ramp = params.u32All; 801 retv = dc_link_set_backlight_level(link, backlight_level_params); 802 803 mod_power_set_psr_event(&core_power->mod_public, stream, false, psr_event_hw_programming, false); 804 mod_power_set_replay_event(&core_power->mod_public, stream, false, replay_event_hw_programming, false); 805 806 return retv; 807 } 808 809 void fill_backlight_level_params(struct core_power *core_power, 810 struct set_backlight_level_params *backlight_level_params, 811 int panel_inst, uint8_t aux_inst, unsigned int backlight_pwm, 812 enum backlight_control_type backlight_control_type, 813 unsigned int backlight_millinit, unsigned int transition_time_millisec, 814 bool is_hdr) 815 { 816 struct pwr_backlight_properties *bl_prop = &core_power->bl_prop[panel_inst]; 817 818 backlight_level_params->aux_inst = aux_inst; 819 backlight_level_params->backlight_pwm_u16_16 = backlight_pwm; 820 backlight_level_params->control_type = backlight_control_type; 821 backlight_level_params->backlight_millinits = backlight_millinit; 822 backlight_level_params->transition_time_in_ms = transition_time_millisec; 823 backlight_level_params->min_luminance = bl_prop->min_brightness_millinits; 824 backlight_level_params->max_luminance = bl_prop->max_brightness_millinits; 825 backlight_level_params->min_backlight_pwm = bl_prop->min_backlight_pwm; 826 backlight_level_params->max_backlight_pwm = bl_prop->max_backlight_pwm; 827 828 if (backlight_control_type == BACKLIGHT_CONTROL_AMD_AUX && !is_hdr) 829 backlight_level_params->control_type = BACKLIGHT_CONTROL_PWM; 830 } 831 832 bool mod_power_set_backlight_nits(struct mod_power *mod_power, 833 struct dc_stream_state *stream, 834 unsigned int backlight_millinit, 835 unsigned int transition_time_millisec, 836 bool skip_aux, 837 bool is_hdr) 838 { 839 struct core_power *core_power = NULL; 840 unsigned int backlight_pwm; 841 unsigned int panel_inst = 0; 842 struct set_backlight_level_params backlight_level_params = { 0 }; 843 const struct dc_link *link = NULL; 844 uint8_t aux_inst = 0; 845 846 if (mod_power == NULL) 847 return false; 848 849 core_power = MOD_POWER_TO_CORE(mod_power); 850 link = dc_stream_get_link(stream); 851 852 aux_inst = link->dc->link_srv->get_ddc_aux_inst(link); 853 854 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &panel_inst)) 855 return false; 856 857 if (!skip_aux) { 858 if (!set_backlight_millinits_aux(core_power, stream, 859 backlight_millinit, transition_time_millisec, panel_inst)) 860 return false; 861 } 862 // always send both AUX (above) and PWM (below) 863 core_power->bl_state[panel_inst].backlight_millinit = backlight_millinit; 864 865 core_power->bl_state[panel_inst].backlight_millipercent = 866 backlight_millinit_to_millipercent( 867 core_power, backlight_millinit, panel_inst); 868 869 backlight_pwm = backlight_millinit_to_pwm( 870 core_power, backlight_millinit, panel_inst); 871 872 fill_backlight_level_params(core_power, &backlight_level_params, panel_inst, aux_inst, backlight_pwm, 873 link->backlight_control_type, backlight_millinit, transition_time_millisec, is_hdr); 874 875 return set_backlight(core_power, stream, 876 &backlight_level_params, panel_inst); 877 } 878 879 bool mod_power_backlight_percent_to_nits(struct mod_power *mod_power, 880 struct dc_stream_state *stream, 881 unsigned int backlight_millipercent, 882 unsigned int *backlight_millinit) 883 { 884 struct core_power *core_power = NULL; 885 unsigned int inst = 0; 886 887 if (mod_power == NULL) 888 return false; 889 890 core_power = MOD_POWER_TO_CORE(mod_power); 891 892 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &inst)) 893 return false; 894 895 *backlight_millinit = backlight_millipercent_to_millinit( 896 core_power, backlight_millipercent, inst); 897 return true; 898 } 899 900 bool mod_power_backlight_nits_to_percent(struct mod_power *mod_power, 901 struct dc_stream_state *stream, 902 unsigned int backlight_millinit, 903 unsigned int *backlight_millipercent) 904 { 905 struct core_power *core_power = NULL; 906 unsigned int inst = 0; 907 908 if (mod_power == NULL) 909 return false; 910 911 core_power = MOD_POWER_TO_CORE(mod_power); 912 913 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &inst)) 914 return false; 915 916 *backlight_millipercent = backlight_millinit_to_millipercent( 917 core_power, backlight_millinit, inst); 918 return true; 919 } 920 921 bool mod_power_set_backlight_percent(struct mod_power *mod_power, 922 struct dc_stream_state *stream, 923 unsigned int backlight_millipercent, 924 unsigned int transition_time_millisec, 925 bool is_hdr) 926 { 927 struct core_power *core_power = NULL; 928 struct set_backlight_level_params backlight_level_params = { 0 }; 929 const struct dc_link *link = NULL; 930 unsigned int backlight_pwm; 931 unsigned int panel_inst = 0; 932 uint8_t aux_inst = 0; 933 934 if (mod_power == NULL) 935 return false; 936 937 core_power = MOD_POWER_TO_CORE(mod_power); 938 link = dc_stream_get_link(stream); 939 aux_inst = link->dc->link_srv->get_ddc_aux_inst(link); 940 941 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &panel_inst)) 942 return false; 943 core_power->bl_state[panel_inst].backlight_millipercent = backlight_millipercent; 944 945 core_power->bl_state[panel_inst].backlight_millinit = 946 backlight_millipercent_to_millinit( 947 core_power, backlight_millipercent, panel_inst); 948 949 backlight_pwm = backlight_millipercent_to_pwm( 950 core_power, backlight_millipercent, panel_inst); 951 952 fill_backlight_level_params(core_power, &backlight_level_params, panel_inst, 953 aux_inst, backlight_pwm, link->backlight_control_type, 954 core_power->bl_state[panel_inst].backlight_millinit, transition_time_millisec, is_hdr); 955 956 return set_backlight(core_power, stream, 957 &backlight_level_params, panel_inst); 958 } 959 960 void mod_power_update_backlight(struct mod_power *mod_power, 961 struct dc_stream_state *stream, 962 unsigned int backlight_millipercent) 963 { 964 struct core_power *core_power = NULL; 965 unsigned int inst = 0; 966 967 if (mod_power == NULL) 968 return; 969 970 core_power = MOD_POWER_TO_CORE(mod_power); 971 972 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &inst)) 973 return; 974 core_power->bl_state[inst].backlight_millipercent = backlight_millipercent; 975 976 core_power->bl_state[inst].backlight_millinit = 977 backlight_millipercent_to_millinit( 978 core_power, backlight_millipercent, inst); 979 980 core_power->bl_state[inst].backlight_pwm = backlight_millipercent_to_pwm( 981 core_power, backlight_millipercent, inst); 982 } 983 984 void mod_power_update_backlight_nits(struct mod_power *mod_power, 985 struct dc_stream_state *stream, 986 unsigned int backlight_millinit) 987 { 988 struct core_power *core_power = NULL; 989 unsigned int inst = 0; 990 991 if (mod_power == NULL) 992 return; 993 994 core_power = MOD_POWER_TO_CORE(mod_power); 995 996 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &inst)) 997 return; 998 999 core_power->bl_state[inst].backlight_millinit = backlight_millinit; 1000 1001 core_power->bl_state[inst].backlight_millipercent = backlight_millinit_to_millipercent( 1002 core_power, backlight_millinit, inst); 1003 core_power->bl_state[inst].backlight_pwm = backlight_millinit_to_pwm( 1004 core_power, backlight_millinit, inst); 1005 } 1006 1007 bool mod_power_get_backlight_pwm(struct mod_power *mod_power, 1008 unsigned int *backlight_pwm, 1009 unsigned int inst) 1010 { 1011 struct core_power *core_power = NULL; 1012 1013 if (mod_power == NULL) 1014 return false; 1015 1016 core_power = MOD_POWER_TO_CORE(mod_power); 1017 1018 *backlight_pwm = core_power->bl_state[inst].backlight_pwm; 1019 1020 return true; 1021 } 1022 1023 bool mod_power_get_backlight_nits(struct mod_power *mod_power, 1024 unsigned int *backlight_millinit, 1025 unsigned int inst) 1026 { 1027 struct core_power *core_power = NULL; 1028 1029 if (mod_power == NULL) 1030 return false; 1031 1032 core_power = MOD_POWER_TO_CORE(mod_power); 1033 1034 *backlight_millinit = core_power->bl_state[inst].backlight_millinit; 1035 1036 return true; 1037 } 1038 1039 bool mod_power_get_backlight_percent(struct mod_power *mod_power, 1040 unsigned int *backlight_millipercent, 1041 unsigned int inst) 1042 { 1043 struct core_power *core_power = NULL; 1044 1045 if (mod_power == NULL) 1046 return false; 1047 1048 core_power = MOD_POWER_TO_CORE(mod_power); 1049 1050 *backlight_millipercent = core_power->bl_state[inst].backlight_millipercent; 1051 1052 return true; 1053 } 1054 1055 bool mod_power_get_hw_target_backlight_pwm_nits(struct mod_power *mod_power, 1056 const struct dc_link *link, 1057 unsigned int *backlight_millinit, 1058 unsigned int inst) 1059 { 1060 struct core_power *core_power = NULL; 1061 unsigned int backlight_u16_16 = 0; 1062 1063 if (mod_power == NULL) 1064 return false; 1065 1066 core_power = MOD_POWER_TO_CORE(mod_power); 1067 1068 if (mod_power_get_hw_target_backlight_pwm(mod_power, link, 1069 &backlight_u16_16)) { 1070 *backlight_millinit = 1071 backlight_pwm_to_millinit(core_power, 1072 backlight_u16_16, inst); 1073 return true; 1074 } 1075 return false; 1076 } 1077 1078 bool mod_power_get_hw_target_backlight_pwm_percent(struct mod_power *mod_power, 1079 const struct dc_link *link, 1080 unsigned int *backlight_millipercent, 1081 unsigned int inst) 1082 { 1083 struct core_power *core_power = NULL; 1084 unsigned int backlight_u16_16 = 0; 1085 1086 if (mod_power == NULL) 1087 return false; 1088 1089 core_power = MOD_POWER_TO_CORE(mod_power); 1090 1091 if (mod_power_get_hw_target_backlight_pwm(mod_power, link, 1092 &backlight_u16_16)) { 1093 *backlight_millipercent = 1094 backlight_pwm_to_millipercent(core_power, 1095 backlight_u16_16, inst); 1096 return true; 1097 } 1098 return false; 1099 } 1100 1101 bool mod_power_get_hw_target_backlight_pwm(struct mod_power *mod_power, 1102 const struct dc_link *link, 1103 unsigned int *backlight_u16_16) 1104 { 1105 if (mod_power == NULL) 1106 return false; 1107 1108 *backlight_u16_16 = dc_link_get_target_backlight_pwm(link); 1109 1110 return true; 1111 } 1112 1113 bool mod_power_get_hw_backlight_pwm_nits(struct mod_power *mod_power, 1114 const struct dc_link *link, 1115 unsigned int *backlight_millinit, 1116 unsigned int inst) 1117 { 1118 struct core_power *core_power = NULL; 1119 unsigned int backlight_u16_16 = 0; 1120 1121 if (mod_power == NULL) 1122 return false; 1123 1124 core_power = MOD_POWER_TO_CORE(mod_power); 1125 1126 if (mod_power_get_hw_backlight_pwm(mod_power, link, &backlight_u16_16)) { 1127 *backlight_millinit = 1128 backlight_pwm_to_millinit(core_power, 1129 backlight_u16_16, inst); 1130 return true; 1131 } 1132 return false; 1133 } 1134 1135 bool mod_power_get_hw_backlight_aux_nits(struct mod_power *mod_power, 1136 struct dc_stream_state **streams, int num_streams, 1137 unsigned int *backlight_millinit_avg, 1138 unsigned int *backlight_millinit_peak) 1139 { 1140 struct core_power *core_power = NULL; 1141 struct dc_link *link = NULL; 1142 int stream_index; 1143 1144 if (mod_power == NULL) 1145 return false; 1146 1147 core_power = MOD_POWER_TO_CORE(mod_power); 1148 1149 if (core_power == NULL) 1150 return false; 1151 1152 if (num_streams < 1) 1153 return true; 1154 1155 for (stream_index = 0; stream_index < num_streams; stream_index++) 1156 if (streams[stream_index]->link->connector_signal == SIGNAL_TYPE_EDP || 1157 streams[stream_index]->link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT) 1158 break; 1159 1160 if (stream_index == num_streams) 1161 return false; 1162 1163 link = dc_stream_get_link(streams[stream_index]); 1164 if (link->dpcd_sink_ext_caps.bits.hdr_aux_backlight_control == 0) 1165 return false; 1166 1167 return dc_link_get_backlight_level_nits(link, backlight_millinit_avg, 1168 backlight_millinit_peak); 1169 } 1170 1171 bool mod_power_get_hw_backlight_pwm_percent(struct mod_power *mod_power, 1172 const struct dc_link *link, 1173 unsigned int *backlight_millipercent, 1174 unsigned int inst) 1175 { 1176 struct core_power *core_power = NULL; 1177 unsigned int backlight_u16_16 = 0; 1178 1179 if (mod_power == NULL) 1180 return false; 1181 1182 core_power = MOD_POWER_TO_CORE(mod_power); 1183 1184 if (mod_power_get_hw_backlight_pwm(mod_power, link, &backlight_u16_16)) { 1185 *backlight_millipercent = 1186 backlight_pwm_to_millipercent(core_power, 1187 backlight_u16_16, inst); 1188 return true; 1189 } 1190 return false; 1191 } 1192 1193 bool mod_power_get_hw_backlight_pwm(struct mod_power *mod_power, 1194 const struct dc_link *link, 1195 unsigned int *backlight_u16_16) 1196 { 1197 if (mod_power == NULL) 1198 return false; 1199 1200 *backlight_u16_16 = dc_link_get_backlight_level(link); 1201 1202 return true; 1203 } 1204 1205 bool mod_power_get_panel_backlight_boundaries( 1206 struct mod_power *mod_power, 1207 unsigned int *out_min_backlight, 1208 unsigned int *out_max_backlight, 1209 unsigned int *out_ac_backlight_percent, 1210 unsigned int *out_dc_backlight_percent, 1211 unsigned int inst) 1212 { 1213 struct core_power *core_power = NULL; 1214 1215 if (mod_power == NULL) 1216 return false; 1217 1218 core_power = MOD_POWER_TO_CORE(mod_power); 1219 1220 /* If cache was successfully updated, 1221 * copy the values to output structure and return success 1222 */ 1223 if (core_power->bl_prop[inst].backlight_caps_valid) { 1224 *out_min_backlight = core_power->bl_prop[inst].backlight_lut[0]; 1225 *out_max_backlight = 1226 core_power->bl_prop[inst].backlight_lut[ 1227 core_power->bl_prop[inst].num_backlight_levels - 1]; 1228 *out_ac_backlight_percent = 1229 core_power->bl_prop[inst].ac_backlight_percent; 1230 *out_dc_backlight_percent = 1231 core_power->bl_prop[inst].dc_backlight_percent; 1232 1233 return true; 1234 } 1235 1236 return false; 1237 } 1238 1239 bool mod_power_set_smooth_brightness(struct mod_power *mod_power, 1240 bool enable_brightness, 1241 unsigned int inst) 1242 { 1243 struct core_power *core_power = NULL; 1244 1245 if (mod_power == NULL) 1246 return false; 1247 1248 core_power = MOD_POWER_TO_CORE(mod_power); 1249 1250 core_power->bl_state[inst].smooth_brightness_enabled = enable_brightness; 1251 1252 return true; 1253 } 1254 1255 bool mod_power_varibright_feature_enable(struct mod_power *mod_power, bool enable, 1256 struct dc_stream_update *stream_update) 1257 { 1258 struct core_power *core_power = NULL; 1259 1260 if (mod_power == NULL) 1261 return false; 1262 1263 core_power = MOD_POWER_TO_CORE(mod_power); 1264 core_power->varibright_prop.varibright_user_enable = enable; 1265 1266 /* find abm hw level to program, and save in stream update */ 1267 varibright_set_level(core_power); 1268 *stream_update->abm_level = core_power->varibright_prop.varibright_hw_level; 1269 1270 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1271 WPP_BIT_FLAG_Backlight_ABM, 1272 ">ABM feature enable: enable=%u su->varibright_level=%u varibright_hw_level=%u", 1273 (unsigned int) enable, 1274 *stream_update->abm_level, 1275 core_power->varibright_prop.varibright_hw_level); 1276 return true; 1277 } 1278 1279 bool mod_power_varibright_activate(struct mod_power *mod_power, 1280 bool activate, 1281 struct dc_stream_update *stream_update) 1282 { 1283 struct core_power *core_power = NULL; 1284 1285 if (mod_power == NULL) 1286 return false; 1287 1288 core_power = MOD_POWER_TO_CORE(mod_power); 1289 core_power->varibright_prop.varibright_active = activate; 1290 1291 /* find abm hw level to program, and save in stream update */ 1292 varibright_set_level(core_power); 1293 *stream_update->abm_level = core_power->varibright_prop.varibright_hw_level; 1294 1295 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1296 WPP_BIT_FLAG_Backlight_ABM, 1297 ">ABM activate: activate=%u su->varibright_level=%u", 1298 (unsigned int) activate, 1299 *stream_update->abm_level); 1300 return true; 1301 } 1302 bool mod_power_varibright_set_level(struct mod_power *mod_power, unsigned int level, 1303 struct dc_stream_update *stream_update) 1304 { 1305 struct core_power *core_power = NULL; 1306 1307 if (mod_power == NULL) 1308 return false; 1309 1310 core_power = MOD_POWER_TO_CORE(mod_power); 1311 core_power->varibright_prop.varibright_level = level; 1312 core_power->varibright_prop.varibright_hw_level = level; 1313 1314 /* find abm hw level to program, and save in stream update */ 1315 varibright_set_level(core_power); 1316 *stream_update->abm_level = core_power->varibright_prop.varibright_hw_level; 1317 1318 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1319 WPP_BIT_FLAG_Backlight_ABM, 1320 ">ABM set level: level=%u -> (varibright_level=%u varibright_hw_level=%u) -> su->varibright_level=%u", 1321 level, 1322 core_power->varibright_prop.varibright_level, 1323 core_power->varibright_prop.varibright_hw_level, 1324 *stream_update->abm_level); 1325 return true; 1326 } 1327 1328 bool mod_power_varibright_set_hw_level(struct mod_power *mod_power, unsigned int level, 1329 struct dc_stream_update *stream_update) 1330 { 1331 struct core_power *core_power = NULL; 1332 1333 if (mod_power == NULL) 1334 return false; 1335 1336 core_power = MOD_POWER_TO_CORE(mod_power); 1337 1338 if (level == 0 || level == ABM_LEVEL_IMMEDIATE_DISABLE) 1339 core_power->varibright_prop.varibright_active = 0; 1340 else 1341 core_power->varibright_prop.varibright_active = 1; 1342 core_power->varibright_prop.varibright_hw_level = level; 1343 *stream_update->abm_level = core_power->varibright_prop.varibright_hw_level; 1344 1345 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1346 WPP_BIT_FLAG_Backlight_ABM, 1347 ">ABM set level: level=%u -> (varibright_level=%u varibright_hw_level=%u) -> su->varibright_level=%u", 1348 level, 1349 core_power->varibright_prop.varibright_level, 1350 core_power->varibright_prop.varibright_hw_level, 1351 *stream_update->abm_level); 1352 return true; 1353 } 1354 1355 bool mod_power_get_varibright_level(struct mod_power *mod_power, 1356 unsigned int *varibright_level) 1357 { 1358 struct core_power *core_power = NULL; 1359 1360 if (mod_power == NULL) 1361 return false; 1362 1363 core_power = MOD_POWER_TO_CORE(mod_power); 1364 1365 *varibright_level = core_power->varibright_prop.varibright_level; 1366 1367 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1368 WPP_BIT_FLAG_Backlight_ABM, 1369 ">get varibright level: cp->varibright_level=%u", 1370 *varibright_level); 1371 return true; 1372 1373 } 1374 1375 bool mod_power_get_varibright_hw_level(struct mod_power *mod_power, 1376 unsigned int *varibright_level) 1377 { 1378 struct core_power *core_power = NULL; 1379 1380 if (mod_power == NULL) 1381 return false; 1382 1383 core_power = MOD_POWER_TO_CORE(mod_power); 1384 1385 *varibright_level = core_power->varibright_prop.varibright_hw_level; 1386 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1387 WPP_BIT_FLAG_Backlight_ABM, 1388 ">get varibright HW level: hw_level=%u", 1389 *varibright_level); 1390 return true; 1391 } 1392 1393 bool mod_power_get_varibright_default_level(struct mod_power *mod_power, 1394 unsigned int *varibright_level) 1395 { 1396 struct core_power *core_power = NULL; 1397 1398 if (mod_power == NULL) 1399 return false; 1400 1401 core_power = MOD_POWER_TO_CORE(mod_power); 1402 1403 *varibright_level = core_power->varibright_prop.def_varibright_level; 1404 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1405 WPP_BIT_FLAG_Backlight_ABM, 1406 ">get varibright default level: def_varibright_level=%u", 1407 *varibright_level); 1408 return true; 1409 } 1410 1411 bool mod_power_get_varibright_enable(struct mod_power *mod_power, 1412 bool *varibright_enable) 1413 { 1414 struct core_power *core_power = NULL; 1415 1416 if (mod_power == NULL) 1417 return false; 1418 1419 core_power = MOD_POWER_TO_CORE(mod_power); 1420 1421 *varibright_enable = core_power->varibright_prop.varibright_user_enable; 1422 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1423 WPP_BIT_FLAG_Backlight_ABM, 1424 ">get varibright enable state: varibright_user_enable=%u", 1425 (unsigned int) (*varibright_enable)); 1426 return true; 1427 } 1428 1429 bool mod_power_is_abm_active(struct mod_power *mod_power, 1430 const struct dc_link *link, 1431 unsigned int inst) 1432 { 1433 unsigned int user_backlight = 0; 1434 unsigned int current_backlight = 0; 1435 bool is_active = false; 1436 1437 if (mod_power == NULL) 1438 return false; 1439 1440 mod_power_get_backlight_pwm(mod_power, &user_backlight, inst); 1441 mod_power_get_hw_backlight_pwm(mod_power, link, ¤t_backlight); 1442 1443 if (user_backlight != current_backlight) 1444 is_active = true; 1445 else 1446 is_active = false; 1447 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1448 WPP_BIT_FLAG_Backlight_ABM, 1449 ">get ABM active state: is_active=%u (user_backlight_pwm=%u, current_backlight_pwm=%u)", 1450 (unsigned int)is_active, 1451 user_backlight, 1452 current_backlight); 1453 return is_active; 1454 } 1455 1456 static void fill_backlight_transform_table(struct dmcu_iram_parameters params, 1457 struct iram_table_v_2 *table) 1458 { 1459 unsigned int i; 1460 unsigned int num_entries = NUM_BL_CURVE_SEGS; 1461 unsigned int lut_index; 1462 1463 table->backlight_thresholds[0] = 0; 1464 ASSERT(params.backlight_lut_array[0] <= 0xFFFF); 1465 table->backlight_offsets[0] = (uint16_t)params.backlight_lut_array[0]; 1466 table->backlight_thresholds[num_entries-1] = 0xFFFF; 1467 ASSERT(params.backlight_lut_array[params.backlight_lut_array_size - 1] <= 0xFFFF); 1468 table->backlight_offsets[num_entries-1] = 1469 (uint16_t)params.backlight_lut_array[params.backlight_lut_array_size - 1]; 1470 1471 /* Setup all brightness levels between 0% and 100% exclusive 1472 * Fills brightness-to-backlight transform table. Backlight custom curve 1473 * describes transform from brightness to backlight. It will be defined 1474 * as set of thresholds and set of offsets, together, implying 1475 * extrapolation of custom curve into 16 uniformly spanned linear 1476 * segments. Each threshold/offset represented by 16 bit entry in 1477 * format U4.10. 1478 */ 1479 for (i = 1; i+1 < num_entries; i++) { 1480 lut_index = (params.backlight_lut_array_size - 1) * i / (num_entries - 1); 1481 1482 ASSERT(lut_index < params.backlight_lut_array_size); 1483 1484 unsigned int threshold_val = DIV_ROUNDUP((i * 65536), num_entries); 1485 unsigned int offset_val = params.backlight_lut_array[lut_index]; 1486 1487 ASSERT(threshold_val <= 0xFFFF); 1488 ASSERT(offset_val <= 0xFFFF); 1489 1490 table->backlight_thresholds[i] = cpu_to_be16((uint16_t)threshold_val); 1491 table->backlight_offsets[i] = cpu_to_be16((uint16_t)offset_val); 1492 } 1493 } 1494 1495 static void fill_backlight_transform_table_v_2_2(struct dmcu_iram_parameters params, 1496 struct iram_table_v_2_2 *table, bool big_endian) 1497 { 1498 unsigned int i; 1499 unsigned int num_entries = NUM_BL_CURVE_SEGS; 1500 unsigned int lut_index; 1501 1502 table->backlight_thresholds[0] = 0; 1503 ASSERT(params.backlight_lut_array[0] <= 0xFFFF); 1504 table->backlight_offsets[0] = (uint16_t)params.backlight_lut_array[0]; 1505 table->backlight_thresholds[num_entries-1] = 0xFFFF; 1506 ASSERT(params.backlight_lut_array[params.backlight_lut_array_size - 1] <= 0xFFFF); 1507 table->backlight_offsets[num_entries-1] = 1508 (uint16_t)params.backlight_lut_array[params.backlight_lut_array_size - 1]; 1509 1510 /* Setup all brightness levels between 0% and 100% exclusive 1511 * Fills brightness-to-backlight transform table. Backlight custom curve 1512 * describes transform from brightness to backlight. It will be defined 1513 * as set of thresholds and set of offsets, together, implying 1514 * extrapolation of custom curve into 16 uniformly spanned linear 1515 * segments. Each threshold/offset represented by 16 bit entry in 1516 * format U4.10. 1517 */ 1518 for (i = 1; i+1 < num_entries; i++) { 1519 lut_index = DIV_ROUNDUP((i * params.backlight_lut_array_size), num_entries); 1520 ASSERT(lut_index < params.backlight_lut_array_size); 1521 1522 unsigned int threshold_val = DIV_ROUNDUP((i * 65536), num_entries); 1523 unsigned int offset_val = params.backlight_lut_array[lut_index]; 1524 1525 ASSERT(threshold_val <= 0xFFFF); 1526 ASSERT(offset_val <= 0xFFFF); 1527 1528 table->backlight_thresholds[i] = (big_endian) ? 1529 cpu_to_be16((uint16_t)threshold_val) : cpu_to_le16((uint16_t)threshold_val); 1530 table->backlight_offsets[i] = (big_endian) ? 1531 cpu_to_be16((uint16_t)offset_val) : cpu_to_le16((uint16_t)offset_val); 1532 } 1533 } 1534 1535 static void fill_iram_v_2(struct iram_table_v_2 *ram_table, struct dmcu_iram_parameters params) 1536 { 1537 unsigned int set = params.set; 1538 1539 ram_table->min_abm_backlight = 1540 cpu_to_be16(params.min_abm_backlight); 1541 ram_table->deviation_gain = 0xb3; 1542 1543 ram_table->blRampReduction = 1544 cpu_to_be16(params.backlight_ramping_reduction); 1545 ram_table->blRampStart = 1546 cpu_to_be16(params.backlight_ramping_start); 1547 1548 ram_table->min_reduction[0][0] = min_reduction_table[abm_config[set][0]]; 1549 ram_table->min_reduction[1][0] = min_reduction_table[abm_config[set][0]]; 1550 ram_table->min_reduction[2][0] = min_reduction_table[abm_config[set][0]]; 1551 ram_table->min_reduction[3][0] = min_reduction_table[abm_config[set][0]]; 1552 ram_table->min_reduction[4][0] = min_reduction_table[abm_config[set][0]]; 1553 ram_table->max_reduction[0][0] = max_reduction_table[abm_config[set][0]]; 1554 ram_table->max_reduction[1][0] = max_reduction_table[abm_config[set][0]]; 1555 ram_table->max_reduction[2][0] = max_reduction_table[abm_config[set][0]]; 1556 ram_table->max_reduction[3][0] = max_reduction_table[abm_config[set][0]]; 1557 ram_table->max_reduction[4][0] = max_reduction_table[abm_config[set][0]]; 1558 1559 ram_table->min_reduction[0][1] = min_reduction_table[abm_config[set][1]]; 1560 ram_table->min_reduction[1][1] = min_reduction_table[abm_config[set][1]]; 1561 ram_table->min_reduction[2][1] = min_reduction_table[abm_config[set][1]]; 1562 ram_table->min_reduction[3][1] = min_reduction_table[abm_config[set][1]]; 1563 ram_table->min_reduction[4][1] = min_reduction_table[abm_config[set][1]]; 1564 ram_table->max_reduction[0][1] = max_reduction_table[abm_config[set][1]]; 1565 ram_table->max_reduction[1][1] = max_reduction_table[abm_config[set][1]]; 1566 ram_table->max_reduction[2][1] = max_reduction_table[abm_config[set][1]]; 1567 ram_table->max_reduction[3][1] = max_reduction_table[abm_config[set][1]]; 1568 ram_table->max_reduction[4][1] = max_reduction_table[abm_config[set][1]]; 1569 1570 ram_table->min_reduction[0][2] = min_reduction_table[abm_config[set][2]]; 1571 ram_table->min_reduction[1][2] = min_reduction_table[abm_config[set][2]]; 1572 ram_table->min_reduction[2][2] = min_reduction_table[abm_config[set][2]]; 1573 ram_table->min_reduction[3][2] = min_reduction_table[abm_config[set][2]]; 1574 ram_table->min_reduction[4][2] = min_reduction_table[abm_config[set][2]]; 1575 ram_table->max_reduction[0][2] = max_reduction_table[abm_config[set][2]]; 1576 ram_table->max_reduction[1][2] = max_reduction_table[abm_config[set][2]]; 1577 ram_table->max_reduction[2][2] = max_reduction_table[abm_config[set][2]]; 1578 ram_table->max_reduction[3][2] = max_reduction_table[abm_config[set][2]]; 1579 ram_table->max_reduction[4][2] = max_reduction_table[abm_config[set][2]]; 1580 1581 ram_table->min_reduction[0][3] = min_reduction_table[abm_config[set][3]]; 1582 ram_table->min_reduction[1][3] = min_reduction_table[abm_config[set][3]]; 1583 ram_table->min_reduction[2][3] = min_reduction_table[abm_config[set][3]]; 1584 ram_table->min_reduction[3][3] = min_reduction_table[abm_config[set][3]]; 1585 ram_table->min_reduction[4][3] = min_reduction_table[abm_config[set][3]]; 1586 ram_table->max_reduction[0][3] = max_reduction_table[abm_config[set][3]]; 1587 ram_table->max_reduction[1][3] = max_reduction_table[abm_config[set][3]]; 1588 ram_table->max_reduction[2][3] = max_reduction_table[abm_config[set][3]]; 1589 ram_table->max_reduction[3][3] = max_reduction_table[abm_config[set][3]]; 1590 ram_table->max_reduction[4][3] = max_reduction_table[abm_config[set][3]]; 1591 1592 ram_table->bright_pos_gain[0][0] = 0x20; 1593 ram_table->bright_pos_gain[0][1] = 0x20; 1594 ram_table->bright_pos_gain[0][2] = 0x20; 1595 ram_table->bright_pos_gain[0][3] = 0x20; 1596 ram_table->bright_pos_gain[1][0] = 0x20; 1597 ram_table->bright_pos_gain[1][1] = 0x20; 1598 ram_table->bright_pos_gain[1][2] = 0x20; 1599 ram_table->bright_pos_gain[1][3] = 0x20; 1600 ram_table->bright_pos_gain[2][0] = 0x20; 1601 ram_table->bright_pos_gain[2][1] = 0x20; 1602 ram_table->bright_pos_gain[2][2] = 0x20; 1603 ram_table->bright_pos_gain[2][3] = 0x20; 1604 ram_table->bright_pos_gain[3][0] = 0x20; 1605 ram_table->bright_pos_gain[3][1] = 0x20; 1606 ram_table->bright_pos_gain[3][2] = 0x20; 1607 ram_table->bright_pos_gain[3][3] = 0x20; 1608 ram_table->bright_pos_gain[4][0] = 0x20; 1609 ram_table->bright_pos_gain[4][1] = 0x20; 1610 ram_table->bright_pos_gain[4][2] = 0x20; 1611 ram_table->bright_pos_gain[4][3] = 0x20; 1612 ram_table->bright_neg_gain[0][0] = 0x00; 1613 ram_table->bright_neg_gain[0][1] = 0x00; 1614 ram_table->bright_neg_gain[0][2] = 0x00; 1615 ram_table->bright_neg_gain[0][3] = 0x00; 1616 ram_table->bright_neg_gain[1][0] = 0x00; 1617 ram_table->bright_neg_gain[1][1] = 0x00; 1618 ram_table->bright_neg_gain[1][2] = 0x00; 1619 ram_table->bright_neg_gain[1][3] = 0x00; 1620 ram_table->bright_neg_gain[2][0] = 0x00; 1621 ram_table->bright_neg_gain[2][1] = 0x00; 1622 ram_table->bright_neg_gain[2][2] = 0x00; 1623 ram_table->bright_neg_gain[2][3] = 0x00; 1624 ram_table->bright_neg_gain[3][0] = 0x00; 1625 ram_table->bright_neg_gain[3][1] = 0x00; 1626 ram_table->bright_neg_gain[3][2] = 0x00; 1627 ram_table->bright_neg_gain[3][3] = 0x00; 1628 ram_table->bright_neg_gain[4][0] = 0x00; 1629 ram_table->bright_neg_gain[4][1] = 0x00; 1630 ram_table->bright_neg_gain[4][2] = 0x00; 1631 ram_table->bright_neg_gain[4][3] = 0x00; 1632 ram_table->dark_pos_gain[0][0] = 0x00; 1633 ram_table->dark_pos_gain[0][1] = 0x00; 1634 ram_table->dark_pos_gain[0][2] = 0x00; 1635 ram_table->dark_pos_gain[0][3] = 0x00; 1636 ram_table->dark_pos_gain[1][0] = 0x00; 1637 ram_table->dark_pos_gain[1][1] = 0x00; 1638 ram_table->dark_pos_gain[1][2] = 0x00; 1639 ram_table->dark_pos_gain[1][3] = 0x00; 1640 ram_table->dark_pos_gain[2][0] = 0x00; 1641 ram_table->dark_pos_gain[2][1] = 0x00; 1642 ram_table->dark_pos_gain[2][2] = 0x00; 1643 ram_table->dark_pos_gain[2][3] = 0x00; 1644 ram_table->dark_pos_gain[3][0] = 0x00; 1645 ram_table->dark_pos_gain[3][1] = 0x00; 1646 ram_table->dark_pos_gain[3][2] = 0x00; 1647 ram_table->dark_pos_gain[3][3] = 0x00; 1648 ram_table->dark_pos_gain[4][0] = 0x00; 1649 ram_table->dark_pos_gain[4][1] = 0x00; 1650 ram_table->dark_pos_gain[4][2] = 0x00; 1651 ram_table->dark_pos_gain[4][3] = 0x00; 1652 ram_table->dark_neg_gain[0][0] = 0x00; 1653 ram_table->dark_neg_gain[0][1] = 0x00; 1654 ram_table->dark_neg_gain[0][2] = 0x00; 1655 ram_table->dark_neg_gain[0][3] = 0x00; 1656 ram_table->dark_neg_gain[1][0] = 0x00; 1657 ram_table->dark_neg_gain[1][1] = 0x00; 1658 ram_table->dark_neg_gain[1][2] = 0x00; 1659 ram_table->dark_neg_gain[1][3] = 0x00; 1660 ram_table->dark_neg_gain[2][0] = 0x00; 1661 ram_table->dark_neg_gain[2][1] = 0x00; 1662 ram_table->dark_neg_gain[2][2] = 0x00; 1663 ram_table->dark_neg_gain[2][3] = 0x00; 1664 ram_table->dark_neg_gain[3][0] = 0x00; 1665 ram_table->dark_neg_gain[3][1] = 0x00; 1666 ram_table->dark_neg_gain[3][2] = 0x00; 1667 ram_table->dark_neg_gain[3][3] = 0x00; 1668 ram_table->dark_neg_gain[4][0] = 0x00; 1669 ram_table->dark_neg_gain[4][1] = 0x00; 1670 ram_table->dark_neg_gain[4][2] = 0x00; 1671 ram_table->dark_neg_gain[4][3] = 0x00; 1672 1673 ram_table->iir_curve[0] = 0x65; 1674 ram_table->iir_curve[1] = 0x65; 1675 ram_table->iir_curve[2] = 0x65; 1676 ram_table->iir_curve[3] = 0x65; 1677 ram_table->iir_curve[4] = 0x65; 1678 1679 //Gamma 2.4 1680 ram_table->crgb_thresh[0] = cpu_to_be16(0x13b6); 1681 ram_table->crgb_thresh[1] = cpu_to_be16(0x1648); 1682 ram_table->crgb_thresh[2] = cpu_to_be16(0x18e3); 1683 ram_table->crgb_thresh[3] = cpu_to_be16(0x1b41); 1684 ram_table->crgb_thresh[4] = cpu_to_be16(0x1d46); 1685 ram_table->crgb_thresh[5] = cpu_to_be16(0x1f21); 1686 ram_table->crgb_thresh[6] = cpu_to_be16(0x2167); 1687 ram_table->crgb_thresh[7] = cpu_to_be16(0x2384); 1688 ram_table->crgb_offset[0] = cpu_to_be16(0x2999); 1689 ram_table->crgb_offset[1] = cpu_to_be16(0x3999); 1690 ram_table->crgb_offset[2] = cpu_to_be16(0x4666); 1691 ram_table->crgb_offset[3] = cpu_to_be16(0x5999); 1692 ram_table->crgb_offset[4] = cpu_to_be16(0x6333); 1693 ram_table->crgb_offset[5] = cpu_to_be16(0x7800); 1694 ram_table->crgb_offset[6] = cpu_to_be16(0x8c00); 1695 ram_table->crgb_offset[7] = cpu_to_be16(0xa000); 1696 ram_table->crgb_slope[0] = cpu_to_be16(0x3147); 1697 ram_table->crgb_slope[1] = cpu_to_be16(0x2978); 1698 ram_table->crgb_slope[2] = cpu_to_be16(0x23a2); 1699 ram_table->crgb_slope[3] = cpu_to_be16(0x1f55); 1700 ram_table->crgb_slope[4] = cpu_to_be16(0x1c63); 1701 ram_table->crgb_slope[5] = cpu_to_be16(0x1a0f); 1702 ram_table->crgb_slope[6] = cpu_to_be16(0x178d); 1703 ram_table->crgb_slope[7] = cpu_to_be16(0x15ab); 1704 1705 fill_backlight_transform_table( 1706 params, ram_table); 1707 } 1708 1709 static void fill_iram_v_2_2(struct iram_table_v_2_2 *ram_table, struct dmcu_iram_parameters params) 1710 { 1711 unsigned int set = params.set; 1712 1713 ram_table->flags = 0x0; 1714 1715 ram_table->min_abm_backlight = 1716 cpu_to_be16(params.min_abm_backlight); 1717 1718 ram_table->deviation_gain[0] = 0xb3; 1719 ram_table->deviation_gain[1] = 0xa8; 1720 ram_table->deviation_gain[2] = 0x98; 1721 ram_table->deviation_gain[3] = 0x68; 1722 1723 ram_table->min_reduction[0][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1724 ram_table->min_reduction[1][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1725 ram_table->min_reduction[2][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1726 ram_table->min_reduction[3][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1727 ram_table->min_reduction[4][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1728 ram_table->max_reduction[0][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1729 ram_table->max_reduction[1][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1730 ram_table->max_reduction[2][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1731 ram_table->max_reduction[3][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1732 ram_table->max_reduction[4][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1733 1734 ram_table->min_reduction[0][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 1735 ram_table->min_reduction[1][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 1736 ram_table->min_reduction[2][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 1737 ram_table->min_reduction[3][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 1738 ram_table->min_reduction[4][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 1739 ram_table->max_reduction[0][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 1740 ram_table->max_reduction[1][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 1741 ram_table->max_reduction[2][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 1742 ram_table->max_reduction[3][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 1743 ram_table->max_reduction[4][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 1744 1745 ram_table->min_reduction[0][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 1746 ram_table->min_reduction[1][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 1747 ram_table->min_reduction[2][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 1748 ram_table->min_reduction[3][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 1749 ram_table->min_reduction[4][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 1750 ram_table->max_reduction[0][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 1751 ram_table->max_reduction[1][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 1752 ram_table->max_reduction[2][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 1753 ram_table->max_reduction[3][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 1754 ram_table->max_reduction[4][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 1755 1756 ram_table->min_reduction[0][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 1757 ram_table->min_reduction[1][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 1758 ram_table->min_reduction[2][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 1759 ram_table->min_reduction[3][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 1760 ram_table->min_reduction[4][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 1761 ram_table->max_reduction[0][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 1762 ram_table->max_reduction[1][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 1763 ram_table->max_reduction[2][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 1764 ram_table->max_reduction[3][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 1765 ram_table->max_reduction[4][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 1766 1767 ram_table->bright_pos_gain[0][0] = 0x20; 1768 ram_table->bright_pos_gain[0][1] = 0x20; 1769 ram_table->bright_pos_gain[0][2] = 0x20; 1770 ram_table->bright_pos_gain[0][3] = 0x20; 1771 ram_table->bright_pos_gain[1][0] = 0x20; 1772 ram_table->bright_pos_gain[1][1] = 0x20; 1773 ram_table->bright_pos_gain[1][2] = 0x20; 1774 ram_table->bright_pos_gain[1][3] = 0x20; 1775 ram_table->bright_pos_gain[2][0] = 0x20; 1776 ram_table->bright_pos_gain[2][1] = 0x20; 1777 ram_table->bright_pos_gain[2][2] = 0x20; 1778 ram_table->bright_pos_gain[2][3] = 0x20; 1779 ram_table->bright_pos_gain[3][0] = 0x20; 1780 ram_table->bright_pos_gain[3][1] = 0x20; 1781 ram_table->bright_pos_gain[3][2] = 0x20; 1782 ram_table->bright_pos_gain[3][3] = 0x20; 1783 ram_table->bright_pos_gain[4][0] = 0x20; 1784 ram_table->bright_pos_gain[4][1] = 0x20; 1785 ram_table->bright_pos_gain[4][2] = 0x20; 1786 ram_table->bright_pos_gain[4][3] = 0x20; 1787 1788 ram_table->dark_pos_gain[0][0] = 0x00; 1789 ram_table->dark_pos_gain[0][1] = 0x00; 1790 ram_table->dark_pos_gain[0][2] = 0x00; 1791 ram_table->dark_pos_gain[0][3] = 0x00; 1792 ram_table->dark_pos_gain[1][0] = 0x00; 1793 ram_table->dark_pos_gain[1][1] = 0x00; 1794 ram_table->dark_pos_gain[1][2] = 0x00; 1795 ram_table->dark_pos_gain[1][3] = 0x00; 1796 ram_table->dark_pos_gain[2][0] = 0x00; 1797 ram_table->dark_pos_gain[2][1] = 0x00; 1798 ram_table->dark_pos_gain[2][2] = 0x00; 1799 ram_table->dark_pos_gain[2][3] = 0x00; 1800 ram_table->dark_pos_gain[3][0] = 0x00; 1801 ram_table->dark_pos_gain[3][1] = 0x00; 1802 ram_table->dark_pos_gain[3][2] = 0x00; 1803 ram_table->dark_pos_gain[3][3] = 0x00; 1804 ram_table->dark_pos_gain[4][0] = 0x00; 1805 ram_table->dark_pos_gain[4][1] = 0x00; 1806 ram_table->dark_pos_gain[4][2] = 0x00; 1807 ram_table->dark_pos_gain[4][3] = 0x00; 1808 1809 ram_table->hybrid_factor[0] = 0xff; 1810 ram_table->hybrid_factor[1] = 0xff; 1811 ram_table->hybrid_factor[2] = 0xff; 1812 ram_table->hybrid_factor[3] = 0xc0; 1813 1814 ram_table->contrast_factor[0] = 0x99; 1815 ram_table->contrast_factor[1] = 0x99; 1816 ram_table->contrast_factor[2] = 0x90; 1817 ram_table->contrast_factor[3] = 0x80; 1818 1819 ram_table->iir_curve[0] = 0x65; 1820 ram_table->iir_curve[1] = 0x65; 1821 ram_table->iir_curve[2] = 0x65; 1822 ram_table->iir_curve[3] = 0x65; 1823 ram_table->iir_curve[4] = 0x65; 1824 1825 //Gamma 2.2 1826 ram_table->crgb_thresh[0] = cpu_to_be16(0x127c); 1827 ram_table->crgb_thresh[1] = cpu_to_be16(0x151b); 1828 ram_table->crgb_thresh[2] = cpu_to_be16(0x17d5); 1829 ram_table->crgb_thresh[3] = cpu_to_be16(0x1a56); 1830 ram_table->crgb_thresh[4] = cpu_to_be16(0x1c83); 1831 ram_table->crgb_thresh[5] = cpu_to_be16(0x1e72); 1832 ram_table->crgb_thresh[6] = cpu_to_be16(0x20f0); 1833 ram_table->crgb_thresh[7] = cpu_to_be16(0x232b); 1834 ram_table->crgb_offset[0] = cpu_to_be16(0x2999); 1835 ram_table->crgb_offset[1] = cpu_to_be16(0x3999); 1836 ram_table->crgb_offset[2] = cpu_to_be16(0x4666); 1837 ram_table->crgb_offset[3] = cpu_to_be16(0x5999); 1838 ram_table->crgb_offset[4] = cpu_to_be16(0x6333); 1839 ram_table->crgb_offset[5] = cpu_to_be16(0x7800); 1840 ram_table->crgb_offset[6] = cpu_to_be16(0x8c00); 1841 ram_table->crgb_offset[7] = cpu_to_be16(0xa000); 1842 ram_table->crgb_slope[0] = cpu_to_be16(0x3609); 1843 ram_table->crgb_slope[1] = cpu_to_be16(0x2dfa); 1844 ram_table->crgb_slope[2] = cpu_to_be16(0x27ea); 1845 ram_table->crgb_slope[3] = cpu_to_be16(0x235d); 1846 ram_table->crgb_slope[4] = cpu_to_be16(0x2042); 1847 ram_table->crgb_slope[5] = cpu_to_be16(0x1dc3); 1848 ram_table->crgb_slope[6] = cpu_to_be16(0x1b1a); 1849 ram_table->crgb_slope[7] = cpu_to_be16(0x1910); 1850 1851 fill_backlight_transform_table_v_2_2( 1852 params, ram_table, true); 1853 } 1854 1855 static void fill_iram_v_2_3(struct iram_table_v_2_2 *ram_table, struct dmcu_iram_parameters params, bool big_endian) 1856 { 1857 unsigned int i, j; 1858 unsigned int set = params.set; 1859 1860 ram_table->flags = 0x0; 1861 ram_table->min_abm_backlight = (uint16_t)((big_endian) ? 1862 cpu_to_be16(params.min_abm_backlight) : 1863 cpu_to_le16(params.min_abm_backlight)); 1864 1865 for (i = 0; i < NUM_AGGR_LEVEL; i++) { 1866 ram_table->hybrid_factor[i] = (uint8_t)abm_settings[set][i].brightness_gain; 1867 ram_table->contrast_factor[i] = abm_settings[set][i].contrast_factor; 1868 ram_table->deviation_gain[i] = abm_settings[set][i].deviation_gain; 1869 ram_table->min_knee[i] = abm_settings[set][i].min_knee; 1870 ram_table->max_knee[i] = abm_settings[set][i].max_knee; 1871 1872 for (j = 0; j < NUM_AMBI_LEVEL; j++) { 1873 ram_table->min_reduction[j][i] = abm_settings[set][i].min_reduction; 1874 ram_table->max_reduction[j][i] = abm_settings[set][i].max_reduction; 1875 ram_table->bright_pos_gain[j][i] = abm_settings[set][i].bright_pos_gain; 1876 ram_table->dark_pos_gain[j][i] = abm_settings[set][i].dark_pos_gain; 1877 } 1878 } 1879 1880 ram_table->iir_curve[0] = 0x65; 1881 ram_table->iir_curve[1] = 0x65; 1882 ram_table->iir_curve[2] = 0x65; 1883 ram_table->iir_curve[3] = 0x65; 1884 ram_table->iir_curve[4] = 0x65; 1885 1886 //Gamma 2.2 1887 ram_table->crgb_thresh[0] = bswap16_based_on_endian(big_endian, 0x127c); 1888 ram_table->crgb_thresh[1] = bswap16_based_on_endian(big_endian, 0x151b); 1889 ram_table->crgb_thresh[2] = bswap16_based_on_endian(big_endian, 0x17d5); 1890 ram_table->crgb_thresh[3] = bswap16_based_on_endian(big_endian, 0x1a56); 1891 ram_table->crgb_thresh[4] = bswap16_based_on_endian(big_endian, 0x1c83); 1892 ram_table->crgb_thresh[5] = bswap16_based_on_endian(big_endian, 0x1e72); 1893 ram_table->crgb_thresh[6] = bswap16_based_on_endian(big_endian, 0x20f0); 1894 ram_table->crgb_thresh[7] = bswap16_based_on_endian(big_endian, 0x232b); 1895 ram_table->crgb_offset[0] = bswap16_based_on_endian(big_endian, 0x2999); 1896 ram_table->crgb_offset[1] = bswap16_based_on_endian(big_endian, 0x3999); 1897 ram_table->crgb_offset[2] = bswap16_based_on_endian(big_endian, 0x4666); 1898 ram_table->crgb_offset[3] = bswap16_based_on_endian(big_endian, 0x5999); 1899 ram_table->crgb_offset[4] = bswap16_based_on_endian(big_endian, 0x6333); 1900 ram_table->crgb_offset[5] = bswap16_based_on_endian(big_endian, 0x7800); 1901 ram_table->crgb_offset[6] = bswap16_based_on_endian(big_endian, 0x8c00); 1902 ram_table->crgb_offset[7] = bswap16_based_on_endian(big_endian, 0xa000); 1903 ram_table->crgb_slope[0] = bswap16_based_on_endian(big_endian, 0x3609); 1904 ram_table->crgb_slope[1] = bswap16_based_on_endian(big_endian, 0x2dfa); 1905 ram_table->crgb_slope[2] = bswap16_based_on_endian(big_endian, 0x27ea); 1906 ram_table->crgb_slope[3] = bswap16_based_on_endian(big_endian, 0x235d); 1907 ram_table->crgb_slope[4] = bswap16_based_on_endian(big_endian, 0x2042); 1908 ram_table->crgb_slope[5] = bswap16_based_on_endian(big_endian, 0x1dc3); 1909 ram_table->crgb_slope[6] = bswap16_based_on_endian(big_endian, 0x1b1a); 1910 ram_table->crgb_slope[7] = bswap16_based_on_endian(big_endian, 0x1910); 1911 1912 fill_backlight_transform_table_v_2_2( 1913 params, ram_table, big_endian); 1914 } 1915 1916 bool dmub_init_abm_config(struct resource_pool *res_pool, 1917 struct dmcu_iram_parameters params, 1918 unsigned int inst) 1919 { 1920 struct iram_table_v_2_2 ram_table; 1921 struct abm_config_table config; 1922 unsigned int set = params.set; 1923 bool result = false; 1924 uint32_t i, j = 0; 1925 1926 if (res_pool->abm == NULL && res_pool->multiple_abms[inst] == NULL) 1927 return false; 1928 1929 memset(&ram_table, 0, sizeof(ram_table)); 1930 memset(&config, 0, sizeof(config)); 1931 1932 fill_iram_v_2_3(&ram_table, params, false); 1933 1934 // We must copy to structure that is aligned to 32-bit 1935 for (i = 0; i < NUM_POWER_FN_SEGS; i++) { 1936 config.crgb_thresh[i] = ram_table.crgb_thresh[i]; 1937 config.crgb_offset[i] = ram_table.crgb_offset[i]; 1938 config.crgb_slope[i] = ram_table.crgb_slope[i]; 1939 } 1940 1941 for (i = 0; i < NUM_BL_CURVE_SEGS; i++) { 1942 config.backlight_thresholds[i] = ram_table.backlight_thresholds[i]; 1943 config.backlight_offsets[i] = ram_table.backlight_offsets[i]; 1944 } 1945 1946 for (i = 0; i < NUM_AMBI_LEVEL; i++) 1947 config.iir_curve[i] = ram_table.iir_curve[i]; 1948 1949 for (i = 0; i < NUM_AMBI_LEVEL; i++) { 1950 for (j = 0; j < NUM_AGGR_LEVEL; j++) { 1951 config.min_reduction[i][j] = ram_table.min_reduction[i][j]; 1952 config.max_reduction[i][j] = ram_table.max_reduction[i][j]; 1953 config.bright_pos_gain[i][j] = ram_table.bright_pos_gain[i][j]; 1954 config.dark_pos_gain[i][j] = ram_table.dark_pos_gain[i][j]; 1955 } 1956 } 1957 1958 for (i = 0; i < NUM_AGGR_LEVEL; i++) { 1959 config.hybrid_factor[i] = ram_table.hybrid_factor[i]; 1960 config.contrast_factor[i] = ram_table.contrast_factor[i]; 1961 config.deviation_gain[i] = ram_table.deviation_gain[i]; 1962 config.min_knee[i] = ram_table.min_knee[i]; 1963 config.max_knee[i] = ram_table.max_knee[i]; 1964 } 1965 1966 if (params.backlight_ramping_override) { 1967 1968 ASSERT(params.backlight_ramping_reduction <= 0xFFFF); 1969 ASSERT(params.backlight_ramping_start <= 0xFFFF); 1970 for (i = 0; i < NUM_AGGR_LEVEL; i++) { 1971 config.blRampReduction[i] = (uint16_t)params.backlight_ramping_reduction; 1972 config.blRampStart[i] = (uint16_t)params.backlight_ramping_start; 1973 } 1974 } else { 1975 for (i = 0; i < NUM_AGGR_LEVEL; i++) { 1976 config.blRampReduction[i] = abm_settings[set][i].blRampReduction; 1977 config.blRampStart[i] = abm_settings[set][i].blRampStart; 1978 } 1979 } 1980 1981 config.min_abm_backlight = ram_table.min_abm_backlight; 1982 1983 if (res_pool->multiple_abms[inst]) { 1984 result = res_pool->multiple_abms[inst]->funcs->init_abm_config( 1985 res_pool->multiple_abms[inst], (char *)(&config), sizeof(struct abm_config_table), inst); 1986 } else 1987 result = res_pool->abm->funcs->init_abm_config( 1988 res_pool->abm, (char *)(&config), sizeof(struct abm_config_table), 0); 1989 1990 return result; 1991 } 1992 1993 bool dmcu_load_iram(struct dmcu *dmcu, 1994 struct dmcu_iram_parameters params) 1995 { 1996 unsigned char ram_table[IRAM_SIZE]; 1997 bool result = false; 1998 1999 if (dmcu == NULL) 2000 return false; 2001 2002 if (dmcu && !dmcu->funcs->is_dmcu_initialized(dmcu)) 2003 return true; 2004 2005 memset(&ram_table, 0, sizeof(ram_table)); 2006 2007 if (dmcu->dmcu_version.abm_version == 0x24) { 2008 fill_iram_v_2_3((struct iram_table_v_2_2 *)ram_table, params, true); 2009 result = dmcu->funcs->load_iram(dmcu, 0, (char *)(&ram_table), 2010 IRAM_RESERVE_AREA_START_V2_2); 2011 } else if (dmcu->dmcu_version.abm_version == 0x23) { 2012 fill_iram_v_2_3((struct iram_table_v_2_2 *)ram_table, params, true); 2013 2014 result = dmcu->funcs->load_iram( 2015 dmcu, 0, (char *)(&ram_table), IRAM_RESERVE_AREA_START_V2_2); 2016 } else if (dmcu->dmcu_version.abm_version == 0x22) { 2017 fill_iram_v_2_2((struct iram_table_v_2_2 *)ram_table, params); 2018 2019 result = dmcu->funcs->load_iram( 2020 dmcu, 0, (char *)(&ram_table), IRAM_RESERVE_AREA_START_V2_2); 2021 } else { 2022 fill_iram_v_2((struct iram_table_v_2 *)ram_table, params); 2023 2024 result = dmcu->funcs->load_iram( 2025 dmcu, 0, (char *)(&ram_table), IRAM_RESERVE_AREA_START_V2); 2026 2027 if (result) 2028 result = dmcu->funcs->load_iram( 2029 dmcu, IRAM_RESERVE_AREA_END_V2 + 1, 2030 (char *)(&ram_table) + IRAM_RESERVE_AREA_END_V2 + 1, 2031 sizeof(ram_table) - IRAM_RESERVE_AREA_END_V2 - 1); 2032 } 2033 2034 return result; 2035 } 2036 2037 bool fill_custom_backlight_caps(unsigned int config_no, struct dm_acpi_atif_backlight_caps *caps) 2038 { 2039 unsigned int data_points_size; 2040 uint64_t caps_size; 2041 2042 if (config_no >= ARRAY_SIZE(custom_backlight_profiles)) 2043 return false; 2044 2045 data_points_size = custom_backlight_profiles[config_no].num_data_points 2046 * sizeof(custom_backlight_profiles[config_no].data_points[0]); 2047 2048 caps_size = sizeof(struct dm_acpi_atif_backlight_caps) - sizeof(caps->data_points) + data_points_size; 2049 ASSERT(caps_size <= 0xFFFF); 2050 caps->size = (uint16_t)caps_size; 2051 caps->flags = 0; 2052 caps->error_code = 0; 2053 caps->ac_level_percentage = custom_backlight_profiles[config_no].ac_level_percentage; 2054 caps->dc_level_percentage = custom_backlight_profiles[config_no].dc_level_percentage; 2055 caps->min_input_signal = custom_backlight_profiles[config_no].min_input_signal; 2056 caps->max_input_signal = custom_backlight_profiles[config_no].max_input_signal; 2057 caps->num_data_points = (uint8_t)custom_backlight_profiles[config_no].num_data_points; 2058 memcpy(caps->data_points, custom_backlight_profiles[config_no].data_points, data_points_size); 2059 return true; 2060 } 2061