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) 247 248 249 250 static uint16_t backlight_8_to_16(unsigned int backlight_8bit) 251 { 252 return (uint16_t)(backlight_8bit * 0x101); 253 } 254 255 unsigned int backlight_millipercent_to_millinit( 256 struct core_power *core_power, unsigned int millipercent, unsigned int inst) 257 { 258 unsigned int millinit = 0; 259 unsigned long long numerator = 0; 260 261 if (core_power == NULL) 262 return 0; 263 264 numerator = ((unsigned long long)millipercent) * 265 core_power->bl_prop[inst].nits_range; 266 millinit = ((unsigned int)div_u64(numerator, 100000)) + 267 core_power->bl_prop[inst].min_brightness_millinits; 268 269 return millinit; 270 } 271 272 static unsigned int backlight_millinit_to_millipercent( 273 struct core_power *core_power, unsigned int millinit, unsigned int inst) 274 { 275 unsigned int millipercent = 0; 276 unsigned long long numerator = 0; 277 278 if (core_power == NULL) 279 return 0; 280 281 if (millinit <= core_power->bl_prop[inst].min_brightness_millinits) 282 return 0; 283 284 if (millinit >= core_power->bl_prop[inst].max_brightness_millinits) 285 return (100 * 1000); 286 287 numerator = (((unsigned long long)millinit) - 288 core_power->bl_prop[inst].min_brightness_millinits) * 100000; 289 millipercent = ((unsigned int)div_u64(numerator, 290 core_power->bl_prop[inst].nits_range)); 291 292 return millipercent; 293 } 294 295 static unsigned int backlight_pwm_to_millipercent( 296 struct core_power *core_power, unsigned int pwm, unsigned int inst) 297 { 298 unsigned int millipercent = 0; 299 unsigned int max_index = 0; 300 301 if (core_power == NULL) 302 return 0; 303 304 if (!core_power->bl_prop[inst].backlight_caps_valid) 305 return 0; 306 307 /* Doesn't really make sense to have one single backlight level 308 * possible... 309 */ 310 if (core_power->bl_prop[inst].num_backlight_levels < 2) 311 return 0; 312 313 max_index = core_power->bl_prop[inst].num_backlight_levels - 1; 314 315 if (pwm <= core_power->bl_prop[inst].backlight_lut[0]) 316 return 0; 317 318 if (pwm > core_power->bl_prop[inst].backlight_lut[max_index]) 319 return (100 * 1000); 320 321 /* We need to do a binary search over the array for where the pwm level 322 * is in the lut. Based on the index we can determine percentage. 323 */ 324 unsigned int min = 0; 325 unsigned int max = max_index; 326 unsigned int mid = 0; 327 328 while (max >= min) { 329 mid = (min + max) / 2; /* floor of half range */ 330 331 if (core_power->bl_prop[inst].backlight_lut[mid] < pwm) 332 min = mid + 1; 333 else if (core_power->bl_prop[inst].backlight_lut[mid] > pwm) 334 max = mid - 1; 335 else 336 break; 337 } 338 339 /* In this case, exact match is not found. Check if mid/min/max 340 * value is actually closer. 341 */ 342 if (max < min) { 343 unsigned int min_delta; 344 unsigned int mid_delta; 345 unsigned int max_delta; 346 347 min_delta = (core_power->bl_prop[inst].backlight_lut[min] > pwm) ? 348 core_power->bl_prop[inst].backlight_lut[min] - pwm : 349 pwm - core_power->bl_prop[inst].backlight_lut[min]; 350 351 mid_delta = (core_power->bl_prop[inst].backlight_lut[mid] > pwm) ? 352 core_power->bl_prop[inst].backlight_lut[mid] - pwm : 353 pwm - core_power->bl_prop[inst].backlight_lut[mid]; 354 355 max_delta = (core_power->bl_prop[inst].backlight_lut[max] > pwm) ? 356 core_power->bl_prop[inst].backlight_lut[max] - pwm : 357 pwm - core_power->bl_prop[inst].backlight_lut[max]; 358 359 if ((min_delta < mid_delta) && (min_delta < max_delta)) 360 mid = min; 361 362 if ((max_delta < mid_delta) && (max_delta < min_delta)) 363 mid = max; 364 } 365 366 /* No interpolation, just take closest index */ 367 millipercent = 1000 * 100 * mid / max_index; 368 369 return millipercent; 370 } 371 372 static unsigned int backlight_pwm_to_millinit( 373 struct core_power *core_power, unsigned int pwm, unsigned int inst) 374 { 375 unsigned int millinit = 0; 376 377 if (core_power == NULL) 378 return 0; 379 380 if (pwm <= core_power->bl_prop[inst].min_backlight_pwm) 381 return core_power->bl_prop[inst].min_brightness_millinits; 382 383 if (pwm >= core_power->bl_prop[inst].max_backlight_pwm) 384 return core_power->bl_prop[inst].max_brightness_millinits; 385 386 millinit = ((unsigned int)div_u64(((unsigned long long)pwm - 387 core_power->bl_prop[inst].min_backlight_pwm) * 388 core_power->bl_prop[inst].nits_range, 389 core_power->bl_prop[inst].backlight_range)); 390 391 millinit += core_power->bl_prop[inst].min_brightness_millinits; 392 393 if (millinit > core_power->bl_prop[inst].max_brightness_millinits) 394 millinit = core_power->bl_prop[inst].max_brightness_millinits; 395 396 return millinit; 397 } 398 399 unsigned int backlight_millipercent_to_pwm( 400 struct core_power *core_power, unsigned int millipercent, unsigned int inst) 401 { 402 unsigned int pwm = (unsigned int)-1; 403 unsigned int index = 0; 404 405 if (core_power == NULL) 406 return 0; 407 408 // Bypass the brightness mapping LUT 409 if (core_power->bl_prop->use_linear_backlight_curve) { 410 pwm = core_power->bl_prop[inst].min_backlight_pwm + 411 (unsigned int) div_u64((unsigned long long) millipercent * 412 core_power->bl_prop[inst].backlight_range, 413 100000); 414 415 if (pwm > core_power->bl_prop[inst].max_backlight_pwm) 416 pwm = core_power->bl_prop[inst].max_backlight_pwm; 417 418 return pwm; 419 } 420 421 if (millipercent >= (100 * 1000)) 422 return core_power->bl_prop[inst].backlight_lut[core_power->bl_prop[inst].num_backlight_levels - 1]; 423 424 /* This will give the floor index. */ 425 index = ((core_power->bl_prop[inst].num_backlight_levels - 1) * 426 millipercent) / 100000; 427 /* Null check otherwise eDP doesn't lightup when connected to DP1 */ 428 if (core_power->bl_prop[inst].backlight_lut == NULL) 429 return pwm; 430 431 pwm = core_power->bl_prop[inst].backlight_lut[index]; 432 433 return pwm; 434 } 435 436 static unsigned int backlight_millinit_to_pwm( 437 struct core_power *core_power, unsigned int millinit, unsigned int inst) 438 { 439 unsigned int pwm = 0; 440 441 if (core_power == NULL) 442 return 0; 443 444 /* For nits based brightness, the signal will be a value 445 * between the minimum and maximum value. 446 */ 447 if (millinit >= core_power->bl_prop[inst].max_brightness_millinits) 448 return core_power->bl_prop[inst].max_backlight_pwm; 449 else if (millinit <= core_power->bl_prop[inst].min_brightness_millinits) 450 return core_power->bl_prop[inst].min_backlight_pwm; 451 452 pwm = ((unsigned int)div_u64(((unsigned long long)millinit - 453 core_power->bl_prop[inst].min_brightness_millinits) * 454 core_power->bl_prop[inst].backlight_range, 455 core_power->bl_prop[inst].nits_range)); 456 457 pwm += core_power->bl_prop[inst].min_backlight_pwm; 458 459 if (pwm > core_power->bl_prop[inst].max_backlight_pwm) 460 pwm = core_power->bl_prop[inst].max_backlight_pwm; 461 462 return pwm; 463 } 464 465 static bool validate_ext_backlight_caps( 466 struct dm_acpi_atif_backlight_caps *ext_backlight_caps) 467 { 468 unsigned int i; 469 unsigned int num_of_data_points = 0; 470 unsigned int last_signal_level = 0; 471 unsigned int last_luminance = 0; 472 473 num_of_data_points = ext_backlight_caps->num_data_points; 474 475 /* Validation rules: 476 * 1. BIOS should carry customized data points and 477 * the number of data points should not be larger than 99. 478 * 2. The max_input_signal should be larger than min_input_signal. 479 * 3. For each data point: 480 * a. luminance should be in ascending order and 481 * should not be 0 or 100 since the corresponding signal_level 482 * are assigned by min_input_signal and max_input_signal. 483 * b. signal_level should be in ascending order and 484 * be within the range of min/max_input_signal. 485 */ 486 if (num_of_data_points > BL_DATA_POINTS) 487 return false; 488 489 if (ext_backlight_caps->min_input_signal >= ext_backlight_caps->max_input_signal) 490 return false; 491 492 last_signal_level = ext_backlight_caps->min_input_signal; 493 for (i = 0; i < num_of_data_points; i++) { 494 unsigned int luminance = ext_backlight_caps->data_points[i].luminance; 495 unsigned int signal_level = ext_backlight_caps->data_points[i].signal_level; 496 497 if ((luminance <= last_luminance) || (luminance > BL_DATA_POINTS)) 498 return false; 499 500 if ((signal_level <= last_signal_level) || (signal_level >= ext_backlight_caps->max_input_signal)) 501 return false; 502 503 last_signal_level = signal_level; 504 last_luminance = luminance; 505 } 506 507 return true; 508 } 509 510 /* hard coded to default backlight curve. */ 511 void initialize_backlight_caps(struct core_power *core_power, unsigned int inst) 512 { 513 unsigned int i; 514 struct dm_acpi_atif_backlight_caps *ext_backlight_caps = NULL; 515 bool custom_curve_present = false; 516 unsigned int num_levels = 0; 517 struct dc *dc = NULL; 518 enum dm_acpi_display_type acpi_display_type = 519 (inst == 0) ? AcpiDisplayType_LCD1 : AcpiDisplayType_LCD2; 520 521 if (core_power == NULL) 522 return; 523 dc = core_power->dc; 524 525 num_levels = core_power->bl_prop[inst].num_backlight_levels; 526 527 /* Allocate memory for ATIF output 528 * (do not want to use 256 bytes on the stack) 529 */ 530 ext_backlight_caps = (struct dm_acpi_atif_backlight_caps *) 531 (kzalloc(sizeof(struct dm_acpi_atif_backlight_caps), 532 GFP_KERNEL)); 533 534 if (ext_backlight_caps == NULL) 535 return; 536 537 /* Retrieve ACPI extended brightness caps */ 538 if (dm_query_extended_brightness_caps 539 (dc->ctx, acpi_display_type, ext_backlight_caps)) { 540 custom_curve_present = validate_ext_backlight_caps(ext_backlight_caps); 541 } 542 543 if (core_power->bl_prop[inst].use_custom_backlight_caps && 544 fill_custom_backlight_caps( 545 core_power->bl_prop[inst].custom_backlight_caps_config_no, 546 ext_backlight_caps)) { 547 custom_curve_present = validate_ext_backlight_caps(ext_backlight_caps); 548 } 549 550 if (custom_curve_present) { 551 unsigned int index = 1; 552 unsigned int num_of_data_points = ext_backlight_caps->num_data_points; 553 554 core_power->bl_prop[inst].ac_backlight_percent = 555 ext_backlight_caps->ac_level_percentage; 556 core_power->bl_prop[inst].dc_backlight_percent = 557 ext_backlight_caps->dc_level_percentage; 558 core_power->bl_prop[inst].backlight_lut[0] = 559 backlight_8_to_16( 560 ext_backlight_caps->min_input_signal); 561 core_power->bl_prop[inst].backlight_lut[num_levels - 1] = 562 backlight_8_to_16( 563 ext_backlight_caps->max_input_signal); 564 565 /* Filling translation table from data points - 566 * between every two provided data points we 567 * lineary interpolate missing values 568 */ 569 for (i = 0; i < num_of_data_points; i++) { 570 unsigned int luminance = 571 ext_backlight_caps->data_points[i].luminance; 572 unsigned int signal_level = 573 backlight_8_to_16( 574 ext_backlight_caps->data_points[i].signal_level); 575 576 /* Since luminance is a percentage, scale it by num_levels*/ 577 luminance = (luminance * num_levels) / 101; 578 579 /* Lineary interpolate missing values */ 580 if (index < luminance) { 581 unsigned int base_value = 582 core_power->bl_prop[inst].backlight_lut[index-1]; 583 unsigned int delta_signal = 584 signal_level - base_value; 585 unsigned int delta_luma = 586 luminance - index + 1; 587 unsigned int step = delta_signal; 588 589 for (; index < luminance; index++) { 590 core_power->bl_prop[inst].backlight_lut[index] = 591 base_value + (step / delta_luma); 592 step += delta_signal; 593 } 594 } 595 596 /* Now [index == luminance], 597 * so we can add data point to the translation table 598 */ 599 core_power->bl_prop[inst].backlight_lut[index++] = signal_level; 600 } 601 602 /* Complete the final segment of interpolation - 603 * between last datapoint and maximum value 604 */ 605 if (index < num_levels - 1) { 606 unsigned int base_value = 607 core_power->bl_prop[inst].backlight_lut[index-1]; 608 unsigned int delta_signal = 609 core_power->bl_prop[inst].backlight_lut[num_levels - 1] - 610 base_value; 611 unsigned int delta_luma = num_levels - index; 612 unsigned int step = delta_signal; 613 614 for (; index < num_levels - 1; index++) { 615 core_power->bl_prop[inst].backlight_lut[index] = 616 base_value + (step / delta_luma); 617 step += delta_signal; 618 } 619 } 620 /* Build backlight translation table based on default curve */ 621 } else { 622 /* Defines default backlight curve F(x) = A(x*x) + Bx + C. 623 * 624 * Backlight curve should always satisfy: 625 * F(0) = min, F(100) = max, 626 * So polynom coefficients are: 627 * A is 0.0255 - B/100 - min/10000 - (255-max)/10000 = 628 * (max - min)/10000 - B/100 629 * B is adjustable factor to modify the curve. 630 * Bigger B results in less concave curve. 631 * B range is [0..(max-min)/100] 632 * C is backlight minimum 633 */ 634 unsigned int backlight_curve_coeff_a_factor = 635 num_levels * num_levels; 636 unsigned int backlight_curve_coeff_b = num_levels; 637 unsigned int delta = 638 core_power->bl_prop[inst].backlight_lut[num_levels - 1] - 639 core_power->bl_prop[inst].backlight_lut[0]; 640 unsigned int coeffC = core_power->bl_prop[inst].backlight_lut[0]; 641 unsigned int coeffB = 642 (backlight_curve_coeff_b < delta ? 643 backlight_curve_coeff_b : delta); 644 unsigned long long coeffA = delta - coeffB; /* coeffB is B*100 */ 645 646 for (i = 1; i < num_levels - 1; i++) { 647 uint64_t lut_val = div_u64(coeffA * i * i, backlight_curve_coeff_a_factor) + 648 div_u64((uint64_t)coeffB * i, backlight_curve_coeff_b) + coeffC; 649 650 ASSERT(lut_val <= 0xFFFFFFFF); 651 core_power->bl_prop[inst].backlight_lut[i] = (unsigned int)lut_val; 652 } 653 } 654 655 if (ext_backlight_caps != NULL) 656 kfree(ext_backlight_caps); 657 658 /* Successfully initialized */ 659 core_power->bl_prop[inst].backlight_caps_valid = true; 660 } 661 662 static void varibright_set_level(struct core_power *core_power) 663 { 664 if (!core_power->varibright_prop.varibright_active || 665 !core_power->varibright_prop.varibright_user_enable) 666 core_power->varibright_prop.varibright_hw_level = 0; 667 else 668 core_power->varibright_prop.varibright_hw_level = 669 core_power->varibright_prop.varibright_level; 670 } 671 672 bool mod_power_hw_init_backlight(struct mod_power *mod_power) 673 { 674 struct core_power *core_power = NULL; 675 struct dc *dc = NULL; 676 struct dmcu *dmcu = NULL; 677 struct dmcu_iram_parameters params; 678 unsigned int i; 679 680 if (mod_power == NULL) 681 return false; 682 683 core_power = MOD_POWER_TO_CORE(mod_power); 684 dc = core_power->dc; 685 686 for (i = 0; i < core_power->edp_num; i++) { 687 params.set = core_power->varibright_prop.varibright_config_setting; 688 params.backlight_ramping_override = core_power->bl_prop[i].backlight_ramping_override; 689 params.backlight_ramping_reduction = core_power->bl_prop[i].backlight_ramping_reduction; 690 params.backlight_ramping_start = core_power->bl_prop[i].backlight_ramping_start; 691 params.backlight_lut_array = core_power->bl_prop[i].backlight_lut; 692 params.backlight_lut_array_size = core_power->bl_prop[i].num_backlight_levels; 693 params.min_abm_backlight = core_power->bl_prop[i].min_abm_backlight; 694 695 dmcu = dc->res_pool->dmcu; 696 697 // In the case where abm is implemented on dmcub, 698 // dmcu object will be null. 699 // ABM 2.4 and up are implemented on dmcub. 700 if (dmcu) { 701 //DMCU does not support multiple eDP 702 return dmcu_load_iram(dmcu, params); 703 } else if (dc->ctx->dmub_srv) { 704 if (!dmub_init_abm_config(dc->res_pool, params, i)) 705 return false; 706 } else 707 return false; 708 } 709 return true; 710 } 711 712 void mod_power_update_backlight_on_mode_change( 713 struct core_power *core_power, 714 struct dc_link *link, 715 unsigned int panel_inst, 716 uint8_t aux_inst, 717 bool is_hdr) 718 { 719 struct set_backlight_level_params backlight_level_params = { 0 }; 720 721 if (link->dpcd_sink_ext_caps.bits.hdr_aux_backlight_control == 1 || 722 link->dpcd_sink_ext_caps.bits.sdr_aux_backlight_control == 1) 723 dc_link_set_backlight_level_nits(link, core_power->bl_state[panel_inst].isHDR, 724 core_power->bl_state[panel_inst].backlight_millinit, 0); 725 726 backlight_level_params.frame_ramp = 0; 727 728 fill_backlight_level_params(core_power, &backlight_level_params, panel_inst, aux_inst, 729 core_power->bl_state[panel_inst].backlight_pwm, link->backlight_control_type, 730 core_power->bl_state[panel_inst].backlight_millinit, 0, is_hdr); 731 732 dc_link_set_backlight_level(link, &backlight_level_params); 733 } 734 735 static bool set_backlight_millinits_aux(struct core_power *core_power, 736 struct dc_stream_state *stream, 737 unsigned int backlight_millinits, 738 unsigned int transition_time_millisec, 739 unsigned int inst) 740 { 741 struct dc_link *link = NULL; 742 743 if (core_power == NULL) 744 return false; 745 746 if (stream == NULL) 747 return true; 748 749 link = dc_stream_get_link(stream); 750 751 return dc_link_set_backlight_level_nits(link, core_power->bl_state[inst].isHDR, 752 backlight_millinits, transition_time_millisec); 753 } 754 755 static bool set_backlight(struct core_power *core_power, 756 struct dc_stream_state *stream, 757 struct set_backlight_level_params *backlight_level_params, 758 unsigned int inst) 759 { 760 bool retv = false; 761 unsigned int frame_ramp = 0; 762 unsigned int vsync_rate_hz; 763 union dmcu_abm_set_bl_params params; 764 const struct dc_link *link = NULL; 765 unsigned int backlight_pwm_u16_16 = backlight_level_params->backlight_pwm_u16_16; 766 unsigned int transition_time_millisec = backlight_level_params->transition_time_in_ms; 767 768 if (core_power == NULL) 769 return false; 770 771 core_power->bl_state[inst].backlight_pwm = backlight_pwm_u16_16; 772 773 if (stream == NULL) 774 return true; 775 776 if (stream->link->connector_signal != SIGNAL_TYPE_EDP) 777 return false; 778 779 if (transition_time_millisec != 0) { 780 unsigned int v_total = 781 (stream->adjust.v_total_max == 0) ? stream->timing.v_total : stream->adjust.v_total_max; 782 783 vsync_rate_hz = (unsigned int)div_u64(div_u64((stream-> 784 timing.pix_clk_100hz * 100), 785 v_total), 786 stream->timing.h_total); 787 788 if (core_power->bl_state[inst].smooth_brightness_enabled) 789 frame_ramp = ((vsync_rate_hz * 790 transition_time_millisec) + 500) / 1000; 791 } 792 793 core_power->bl_state[inst].frame_ramp = frame_ramp; 794 params.u32All = 0; 795 params.bits.gradual_change = (frame_ramp > 0); 796 params.bits.frame_ramp = frame_ramp; 797 link = dc_stream_get_link(stream); 798 799 mod_power_set_psr_event(&core_power->mod_public, stream, true, psr_event_hw_programming, true); 800 mod_power_set_replay_event(&core_power->mod_public, stream, true, replay_event_hw_programming, true); 801 802 backlight_level_params->frame_ramp = params.u32All; 803 retv = dc_link_set_backlight_level(link, backlight_level_params); 804 805 mod_power_set_psr_event(&core_power->mod_public, stream, false, psr_event_hw_programming, false); 806 mod_power_set_replay_event(&core_power->mod_public, stream, false, replay_event_hw_programming, false); 807 808 return retv; 809 } 810 811 void fill_backlight_level_params(struct core_power *core_power, 812 struct set_backlight_level_params *backlight_level_params, 813 int panel_inst, uint8_t aux_inst, unsigned int backlight_pwm, 814 enum backlight_control_type backlight_control_type, 815 unsigned int backlight_millinit, unsigned int transition_time_millisec, 816 bool is_hdr) 817 { 818 struct pwr_backlight_properties *bl_prop = &core_power->bl_prop[panel_inst]; 819 820 backlight_level_params->aux_inst = aux_inst; 821 backlight_level_params->backlight_pwm_u16_16 = backlight_pwm; 822 backlight_level_params->control_type = backlight_control_type; 823 backlight_level_params->backlight_millinits = backlight_millinit; 824 backlight_level_params->transition_time_in_ms = transition_time_millisec; 825 backlight_level_params->min_luminance = bl_prop->min_brightness_millinits; 826 backlight_level_params->max_luminance = bl_prop->max_brightness_millinits; 827 backlight_level_params->min_backlight_pwm = bl_prop->min_backlight_pwm; 828 backlight_level_params->max_backlight_pwm = bl_prop->max_backlight_pwm; 829 830 if (backlight_control_type == BACKLIGHT_CONTROL_AMD_AUX && !is_hdr) 831 backlight_level_params->control_type = BACKLIGHT_CONTROL_PWM; 832 } 833 834 bool mod_power_set_backlight_nits(struct mod_power *mod_power, 835 struct dc_stream_state *stream, 836 unsigned int backlight_millinit, 837 unsigned int transition_time_millisec, 838 bool skip_aux, 839 bool is_hdr) 840 { 841 struct core_power *core_power = NULL; 842 unsigned int backlight_pwm; 843 unsigned int panel_inst = 0; 844 struct set_backlight_level_params backlight_level_params = { 0 }; 845 const struct dc_link *link = NULL; 846 uint8_t aux_inst = 0; 847 848 if (mod_power == NULL) 849 return false; 850 851 core_power = MOD_POWER_TO_CORE(mod_power); 852 link = dc_stream_get_link(stream); 853 854 ASSERT(link->ddc->ddc_pin->hw_info.ddc_channel <= 0xFF); 855 aux_inst = (uint8_t)link->ddc->ddc_pin->hw_info.ddc_channel; 856 857 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &panel_inst)) 858 return false; 859 860 if (!skip_aux) { 861 if (!set_backlight_millinits_aux(core_power, stream, 862 backlight_millinit, transition_time_millisec, panel_inst)) 863 return false; 864 } 865 // always send both AUX (above) and PWM (below) 866 core_power->bl_state[panel_inst].backlight_millinit = backlight_millinit; 867 868 core_power->bl_state[panel_inst].backlight_millipercent = 869 backlight_millinit_to_millipercent( 870 core_power, backlight_millinit, panel_inst); 871 872 backlight_pwm = backlight_millinit_to_pwm( 873 core_power, backlight_millinit, panel_inst); 874 875 fill_backlight_level_params(core_power, &backlight_level_params, panel_inst, aux_inst, backlight_pwm, 876 link->backlight_control_type, backlight_millinit, transition_time_millisec, is_hdr); 877 878 return set_backlight(core_power, stream, 879 &backlight_level_params, panel_inst); 880 } 881 882 bool mod_power_backlight_percent_to_nits(struct mod_power *mod_power, 883 struct dc_stream_state *stream, 884 unsigned int backlight_millipercent, 885 unsigned int *backlight_millinit) 886 { 887 struct core_power *core_power = NULL; 888 unsigned int inst = 0; 889 890 if (mod_power == NULL) 891 return false; 892 893 core_power = MOD_POWER_TO_CORE(mod_power); 894 895 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &inst)) 896 return false; 897 898 *backlight_millinit = backlight_millipercent_to_millinit( 899 core_power, backlight_millipercent, inst); 900 return true; 901 } 902 903 bool mod_power_backlight_nits_to_percent(struct mod_power *mod_power, 904 struct dc_stream_state *stream, 905 unsigned int backlight_millinit, 906 unsigned int *backlight_millipercent) 907 { 908 struct core_power *core_power = NULL; 909 unsigned int inst = 0; 910 911 if (mod_power == NULL) 912 return false; 913 914 core_power = MOD_POWER_TO_CORE(mod_power); 915 916 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &inst)) 917 return false; 918 919 *backlight_millipercent = backlight_millinit_to_millipercent( 920 core_power, backlight_millinit, inst); 921 return true; 922 } 923 924 bool mod_power_set_backlight_percent(struct mod_power *mod_power, 925 struct dc_stream_state *stream, 926 unsigned int backlight_millipercent, 927 unsigned int transition_time_millisec, 928 bool is_hdr) 929 { 930 struct core_power *core_power = NULL; 931 struct set_backlight_level_params backlight_level_params = { 0 }; 932 const struct dc_link *link = NULL; 933 unsigned int backlight_pwm; 934 unsigned int panel_inst = 0; 935 uint8_t aux_inst = 0; 936 937 if (mod_power == NULL) 938 return false; 939 940 core_power = MOD_POWER_TO_CORE(mod_power); 941 link = dc_stream_get_link(stream); 942 ASSERT(link->ddc->ddc_pin->hw_info.ddc_channel <= 0xFF); 943 aux_inst = (uint8_t)link->ddc->ddc_pin->hw_info.ddc_channel; 944 945 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &panel_inst)) 946 return false; 947 core_power->bl_state[panel_inst].backlight_millipercent = backlight_millipercent; 948 949 core_power->bl_state[panel_inst].backlight_millinit = 950 backlight_millipercent_to_millinit( 951 core_power, backlight_millipercent, panel_inst); 952 953 backlight_pwm = backlight_millipercent_to_pwm( 954 core_power, backlight_millipercent, panel_inst); 955 956 fill_backlight_level_params(core_power, &backlight_level_params, panel_inst, 957 aux_inst, backlight_pwm, link->backlight_control_type, 958 core_power->bl_state[panel_inst].backlight_millinit, transition_time_millisec, is_hdr); 959 960 return set_backlight(core_power, stream, 961 &backlight_level_params, panel_inst); 962 } 963 964 void mod_power_update_backlight(struct mod_power *mod_power, 965 struct dc_stream_state *stream, 966 unsigned int backlight_millipercent) 967 { 968 struct core_power *core_power = NULL; 969 unsigned int inst = 0; 970 971 if (mod_power == NULL) 972 return; 973 974 core_power = MOD_POWER_TO_CORE(mod_power); 975 976 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &inst)) 977 return; 978 core_power->bl_state[inst].backlight_millipercent = backlight_millipercent; 979 980 core_power->bl_state[inst].backlight_millinit = 981 backlight_millipercent_to_millinit( 982 core_power, backlight_millipercent, inst); 983 984 core_power->bl_state[inst].backlight_pwm = backlight_millipercent_to_pwm( 985 core_power, backlight_millipercent, inst); 986 } 987 988 void mod_power_update_backlight_nits(struct mod_power *mod_power, 989 struct dc_stream_state *stream, 990 unsigned int backlight_millinit) 991 { 992 struct core_power *core_power = NULL; 993 unsigned int inst = 0; 994 995 if (mod_power == NULL) 996 return; 997 998 core_power = MOD_POWER_TO_CORE(mod_power); 999 1000 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &inst)) 1001 return; 1002 1003 core_power->bl_state[inst].backlight_millinit = backlight_millinit; 1004 1005 core_power->bl_state[inst].backlight_millipercent = backlight_millinit_to_millipercent( 1006 core_power, backlight_millinit, inst); 1007 core_power->bl_state[inst].backlight_pwm = backlight_millinit_to_pwm( 1008 core_power, backlight_millinit, inst); 1009 } 1010 1011 bool mod_power_get_backlight_pwm(struct mod_power *mod_power, 1012 unsigned int *backlight_pwm, 1013 unsigned int inst) 1014 { 1015 struct core_power *core_power = NULL; 1016 1017 if (mod_power == NULL) 1018 return false; 1019 1020 core_power = MOD_POWER_TO_CORE(mod_power); 1021 1022 *backlight_pwm = core_power->bl_state[inst].backlight_pwm; 1023 1024 return true; 1025 } 1026 1027 bool mod_power_get_backlight_nits(struct mod_power *mod_power, 1028 unsigned int *backlight_millinit, 1029 unsigned int inst) 1030 { 1031 struct core_power *core_power = NULL; 1032 1033 if (mod_power == NULL) 1034 return false; 1035 1036 core_power = MOD_POWER_TO_CORE(mod_power); 1037 1038 *backlight_millinit = core_power->bl_state[inst].backlight_millinit; 1039 1040 return true; 1041 } 1042 1043 bool mod_power_get_backlight_percent(struct mod_power *mod_power, 1044 unsigned int *backlight_millipercent, 1045 unsigned int inst) 1046 { 1047 struct core_power *core_power = NULL; 1048 1049 if (mod_power == NULL) 1050 return false; 1051 1052 core_power = MOD_POWER_TO_CORE(mod_power); 1053 1054 *backlight_millipercent = core_power->bl_state[inst].backlight_millipercent; 1055 1056 return true; 1057 } 1058 1059 bool mod_power_get_hw_target_backlight_pwm_nits(struct mod_power *mod_power, 1060 const struct dc_link *link, 1061 unsigned int *backlight_millinit, 1062 unsigned int inst) 1063 { 1064 struct core_power *core_power = NULL; 1065 unsigned int backlight_u16_16 = 0; 1066 1067 if (mod_power == NULL) 1068 return false; 1069 1070 core_power = MOD_POWER_TO_CORE(mod_power); 1071 1072 if (mod_power_get_hw_target_backlight_pwm(mod_power, link, 1073 &backlight_u16_16)) { 1074 *backlight_millinit = 1075 backlight_pwm_to_millinit(core_power, 1076 backlight_u16_16, inst); 1077 return true; 1078 } 1079 return false; 1080 } 1081 1082 bool mod_power_get_hw_target_backlight_pwm_percent(struct mod_power *mod_power, 1083 const struct dc_link *link, 1084 unsigned int *backlight_millipercent, 1085 unsigned int inst) 1086 { 1087 struct core_power *core_power = NULL; 1088 unsigned int backlight_u16_16 = 0; 1089 1090 if (mod_power == NULL) 1091 return false; 1092 1093 core_power = MOD_POWER_TO_CORE(mod_power); 1094 1095 if (mod_power_get_hw_target_backlight_pwm(mod_power, link, 1096 &backlight_u16_16)) { 1097 *backlight_millipercent = 1098 backlight_pwm_to_millipercent(core_power, 1099 backlight_u16_16, inst); 1100 return true; 1101 } 1102 return false; 1103 } 1104 1105 bool mod_power_get_hw_target_backlight_pwm(struct mod_power *mod_power, 1106 const struct dc_link *link, 1107 unsigned int *backlight_u16_16) 1108 { 1109 if (mod_power == NULL) 1110 return false; 1111 1112 *backlight_u16_16 = dc_link_get_target_backlight_pwm(link); 1113 1114 return true; 1115 } 1116 1117 bool mod_power_get_hw_backlight_pwm_nits(struct mod_power *mod_power, 1118 const struct dc_link *link, 1119 unsigned int *backlight_millinit, 1120 unsigned int inst) 1121 { 1122 struct core_power *core_power = NULL; 1123 unsigned int backlight_u16_16 = 0; 1124 1125 if (mod_power == NULL) 1126 return false; 1127 1128 core_power = MOD_POWER_TO_CORE(mod_power); 1129 1130 if (mod_power_get_hw_backlight_pwm(mod_power, link, &backlight_u16_16)) { 1131 *backlight_millinit = 1132 backlight_pwm_to_millinit(core_power, 1133 backlight_u16_16, inst); 1134 return true; 1135 } 1136 return false; 1137 } 1138 1139 bool mod_power_get_hw_backlight_aux_nits(struct mod_power *mod_power, 1140 struct dc_stream_state **streams, int num_streams, 1141 unsigned int *backlight_millinit_avg, 1142 unsigned int *backlight_millinit_peak) 1143 { 1144 struct core_power *core_power = NULL; 1145 struct dc_link *link = NULL; 1146 int stream_index; 1147 1148 if (mod_power == NULL) 1149 return false; 1150 1151 core_power = MOD_POWER_TO_CORE(mod_power); 1152 1153 if (core_power == NULL) 1154 return false; 1155 1156 if (num_streams < 1) 1157 return true; 1158 1159 for (stream_index = 0; stream_index < num_streams; stream_index++) 1160 if (streams[stream_index]->link->connector_signal == SIGNAL_TYPE_EDP || 1161 streams[stream_index]->link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT) 1162 break; 1163 1164 if (stream_index == num_streams) 1165 return false; 1166 1167 link = dc_stream_get_link(streams[stream_index]); 1168 if (link->dpcd_sink_ext_caps.bits.hdr_aux_backlight_control == 0) 1169 return false; 1170 1171 return dc_link_get_backlight_level_nits(link, backlight_millinit_avg, 1172 backlight_millinit_peak); 1173 } 1174 1175 bool mod_power_get_hw_backlight_pwm_percent(struct mod_power *mod_power, 1176 const struct dc_link *link, 1177 unsigned int *backlight_millipercent, 1178 unsigned int inst) 1179 { 1180 struct core_power *core_power = NULL; 1181 unsigned int backlight_u16_16 = 0; 1182 1183 if (mod_power == NULL) 1184 return false; 1185 1186 core_power = MOD_POWER_TO_CORE(mod_power); 1187 1188 if (mod_power_get_hw_backlight_pwm(mod_power, link, &backlight_u16_16)) { 1189 *backlight_millipercent = 1190 backlight_pwm_to_millipercent(core_power, 1191 backlight_u16_16, inst); 1192 return true; 1193 } 1194 return false; 1195 } 1196 1197 bool mod_power_get_hw_backlight_pwm(struct mod_power *mod_power, 1198 const struct dc_link *link, 1199 unsigned int *backlight_u16_16) 1200 { 1201 if (mod_power == NULL) 1202 return false; 1203 1204 *backlight_u16_16 = dc_link_get_backlight_level(link); 1205 1206 return true; 1207 } 1208 1209 bool mod_power_get_panel_backlight_boundaries( 1210 struct mod_power *mod_power, 1211 unsigned int *out_min_backlight, 1212 unsigned int *out_max_backlight, 1213 unsigned int *out_ac_backlight_percent, 1214 unsigned int *out_dc_backlight_percent, 1215 unsigned int inst) 1216 { 1217 struct core_power *core_power = NULL; 1218 1219 if (mod_power == NULL) 1220 return false; 1221 1222 core_power = MOD_POWER_TO_CORE(mod_power); 1223 1224 /* If cache was successfully updated, 1225 * copy the values to output structure and return success 1226 */ 1227 if (core_power->bl_prop[inst].backlight_caps_valid) { 1228 *out_min_backlight = core_power->bl_prop[inst].backlight_lut[0]; 1229 *out_max_backlight = 1230 core_power->bl_prop[inst].backlight_lut[ 1231 core_power->bl_prop[inst].num_backlight_levels - 1]; 1232 *out_ac_backlight_percent = 1233 core_power->bl_prop[inst].ac_backlight_percent; 1234 *out_dc_backlight_percent = 1235 core_power->bl_prop[inst].dc_backlight_percent; 1236 1237 return true; 1238 } 1239 1240 return false; 1241 } 1242 1243 bool mod_power_set_smooth_brightness(struct mod_power *mod_power, 1244 bool enable_brightness, 1245 unsigned int inst) 1246 { 1247 struct core_power *core_power = NULL; 1248 1249 if (mod_power == NULL) 1250 return false; 1251 1252 core_power = MOD_POWER_TO_CORE(mod_power); 1253 1254 core_power->bl_state[inst].smooth_brightness_enabled = enable_brightness; 1255 1256 return true; 1257 } 1258 1259 bool mod_power_varibright_feature_enable(struct mod_power *mod_power, bool enable, 1260 struct dc_stream_update *stream_update) 1261 { 1262 struct core_power *core_power = NULL; 1263 1264 if (mod_power == NULL) 1265 return false; 1266 1267 core_power = MOD_POWER_TO_CORE(mod_power); 1268 core_power->varibright_prop.varibright_user_enable = enable; 1269 1270 /* find abm hw level to program, and save in stream update */ 1271 varibright_set_level(core_power); 1272 *stream_update->abm_level = core_power->varibright_prop.varibright_hw_level; 1273 1274 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1275 WPP_BIT_FLAG_Backlight_ABM, 1276 ">ABM feature enable: enable=%u su->varibright_level=%u varibright_hw_level=%u", 1277 (unsigned int) enable, 1278 *stream_update->abm_level, 1279 core_power->varibright_prop.varibright_hw_level); 1280 return true; 1281 } 1282 1283 bool mod_power_varibright_activate(struct mod_power *mod_power, 1284 bool activate, 1285 struct dc_stream_update *stream_update) 1286 { 1287 struct core_power *core_power = NULL; 1288 1289 if (mod_power == NULL) 1290 return false; 1291 1292 core_power = MOD_POWER_TO_CORE(mod_power); 1293 core_power->varibright_prop.varibright_active = activate; 1294 1295 /* find abm hw level to program, and save in stream update */ 1296 varibright_set_level(core_power); 1297 *stream_update->abm_level = core_power->varibright_prop.varibright_hw_level; 1298 1299 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1300 WPP_BIT_FLAG_Backlight_ABM, 1301 ">ABM activate: activate=%u su->varibright_level=%u", 1302 (unsigned int) activate, 1303 *stream_update->abm_level); 1304 return true; 1305 } 1306 bool mod_power_varibright_set_level(struct mod_power *mod_power, unsigned int level, 1307 struct dc_stream_update *stream_update) 1308 { 1309 struct core_power *core_power = NULL; 1310 1311 if (mod_power == NULL) 1312 return false; 1313 1314 core_power = MOD_POWER_TO_CORE(mod_power); 1315 core_power->varibright_prop.varibright_level = level; 1316 core_power->varibright_prop.varibright_hw_level = level; 1317 1318 /* find abm hw level to program, and save in stream update */ 1319 varibright_set_level(core_power); 1320 *stream_update->abm_level = core_power->varibright_prop.varibright_hw_level; 1321 1322 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1323 WPP_BIT_FLAG_Backlight_ABM, 1324 ">ABM set level: level=%u -> (varibright_level=%u varibright_hw_level=%u) -> su->varibright_level=%u", 1325 level, 1326 core_power->varibright_prop.varibright_level, 1327 core_power->varibright_prop.varibright_hw_level, 1328 *stream_update->abm_level); 1329 return true; 1330 } 1331 1332 bool mod_power_varibright_set_hw_level(struct mod_power *mod_power, unsigned int level, 1333 struct dc_stream_update *stream_update) 1334 { 1335 struct core_power *core_power = NULL; 1336 1337 if (mod_power == NULL) 1338 return false; 1339 1340 core_power = MOD_POWER_TO_CORE(mod_power); 1341 1342 if (level == 0 || level == ABM_LEVEL_IMMEDIATE_DISABLE) 1343 core_power->varibright_prop.varibright_active = 0; 1344 else 1345 core_power->varibright_prop.varibright_active = 1; 1346 core_power->varibright_prop.varibright_hw_level = level; 1347 *stream_update->abm_level = core_power->varibright_prop.varibright_hw_level; 1348 1349 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1350 WPP_BIT_FLAG_Backlight_ABM, 1351 ">ABM set level: level=%u -> (varibright_level=%u varibright_hw_level=%u) -> su->varibright_level=%u", 1352 level, 1353 core_power->varibright_prop.varibright_level, 1354 core_power->varibright_prop.varibright_hw_level, 1355 *stream_update->abm_level); 1356 return true; 1357 } 1358 1359 bool mod_power_get_varibright_level(struct mod_power *mod_power, 1360 unsigned int *varibright_level) 1361 { 1362 struct core_power *core_power = NULL; 1363 1364 if (mod_power == NULL) 1365 return false; 1366 1367 core_power = MOD_POWER_TO_CORE(mod_power); 1368 1369 *varibright_level = core_power->varibright_prop.varibright_level; 1370 1371 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1372 WPP_BIT_FLAG_Backlight_ABM, 1373 ">get varibright level: cp->varibright_level=%u", 1374 *varibright_level); 1375 return true; 1376 1377 } 1378 1379 bool mod_power_get_varibright_hw_level(struct mod_power *mod_power, 1380 unsigned int *varibright_level) 1381 { 1382 struct core_power *core_power = NULL; 1383 1384 if (mod_power == NULL) 1385 return false; 1386 1387 core_power = MOD_POWER_TO_CORE(mod_power); 1388 1389 *varibright_level = core_power->varibright_prop.varibright_hw_level; 1390 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1391 WPP_BIT_FLAG_Backlight_ABM, 1392 ">get varibright HW level: hw_level=%u", 1393 *varibright_level); 1394 return true; 1395 } 1396 1397 bool mod_power_get_varibright_default_level(struct mod_power *mod_power, 1398 unsigned int *varibright_level) 1399 { 1400 struct core_power *core_power = NULL; 1401 1402 if (mod_power == NULL) 1403 return false; 1404 1405 core_power = MOD_POWER_TO_CORE(mod_power); 1406 1407 *varibright_level = core_power->varibright_prop.def_varibright_level; 1408 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1409 WPP_BIT_FLAG_Backlight_ABM, 1410 ">get varibright default level: def_varibright_level=%u", 1411 *varibright_level); 1412 return true; 1413 } 1414 1415 bool mod_power_get_varibright_enable(struct mod_power *mod_power, 1416 bool *varibright_enable) 1417 { 1418 struct core_power *core_power = NULL; 1419 1420 if (mod_power == NULL) 1421 return false; 1422 1423 core_power = MOD_POWER_TO_CORE(mod_power); 1424 1425 *varibright_enable = core_power->varibright_prop.varibright_user_enable; 1426 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1427 WPP_BIT_FLAG_Backlight_ABM, 1428 ">get varibright enable state: varibright_user_enable=%u", 1429 (unsigned int) (*varibright_enable)); 1430 return true; 1431 } 1432 1433 bool mod_power_is_abm_active(struct mod_power *mod_power, 1434 const struct dc_link *link, 1435 unsigned int inst) 1436 { 1437 unsigned int user_backlight = 0; 1438 unsigned int current_backlight = 0; 1439 bool is_active = false; 1440 1441 if (mod_power == NULL) 1442 return false; 1443 1444 mod_power_get_backlight_pwm(mod_power, &user_backlight, inst); 1445 mod_power_get_hw_backlight_pwm(mod_power, link, ¤t_backlight); 1446 1447 if (user_backlight != current_backlight) 1448 is_active = true; 1449 else 1450 is_active = false; 1451 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1452 WPP_BIT_FLAG_Backlight_ABM, 1453 ">get ABM active state: is_active=%u (user_backlight_pwm=%u, current_backlight_pwm=%u)", 1454 (unsigned int)is_active, 1455 user_backlight, 1456 current_backlight); 1457 return is_active; 1458 } 1459 1460 static void fill_backlight_transform_table(struct dmcu_iram_parameters params, 1461 struct iram_table_v_2 *table) 1462 { 1463 unsigned int i; 1464 unsigned int num_entries = NUM_BL_CURVE_SEGS; 1465 unsigned int lut_index; 1466 1467 table->backlight_thresholds[0] = 0; 1468 ASSERT(params.backlight_lut_array[0] <= 0xFFFF); 1469 table->backlight_offsets[0] = (uint16_t)params.backlight_lut_array[0]; 1470 table->backlight_thresholds[num_entries-1] = 0xFFFF; 1471 ASSERT(params.backlight_lut_array[params.backlight_lut_array_size - 1] <= 0xFFFF); 1472 table->backlight_offsets[num_entries-1] = 1473 (uint16_t)params.backlight_lut_array[params.backlight_lut_array_size - 1]; 1474 1475 /* Setup all brightness levels between 0% and 100% exclusive 1476 * Fills brightness-to-backlight transform table. Backlight custom curve 1477 * describes transform from brightness to backlight. It will be defined 1478 * as set of thresholds and set of offsets, together, implying 1479 * extrapolation of custom curve into 16 uniformly spanned linear 1480 * segments. Each threshold/offset represented by 16 bit entry in 1481 * format U4.10. 1482 */ 1483 for (i = 1; i+1 < num_entries; i++) { 1484 lut_index = (params.backlight_lut_array_size - 1) * i / (num_entries - 1); 1485 1486 ASSERT(lut_index < params.backlight_lut_array_size); 1487 1488 unsigned int threshold_val = DIV_ROUNDUP((i * 65536), num_entries); 1489 unsigned int offset_val = params.backlight_lut_array[lut_index]; 1490 1491 ASSERT(threshold_val <= 0xFFFF); 1492 ASSERT(offset_val <= 0xFFFF); 1493 1494 table->backlight_thresholds[i] = cpu_to_be16((uint16_t)threshold_val); 1495 table->backlight_offsets[i] = cpu_to_be16((uint16_t)offset_val); 1496 } 1497 } 1498 1499 static void fill_backlight_transform_table_v_2_2(struct dmcu_iram_parameters params, 1500 struct iram_table_v_2_2 *table, bool big_endian) 1501 { 1502 unsigned int i; 1503 unsigned int num_entries = NUM_BL_CURVE_SEGS; 1504 unsigned int lut_index; 1505 1506 table->backlight_thresholds[0] = 0; 1507 ASSERT(params.backlight_lut_array[0] <= 0xFFFF); 1508 table->backlight_offsets[0] = (uint16_t)params.backlight_lut_array[0]; 1509 table->backlight_thresholds[num_entries-1] = 0xFFFF; 1510 ASSERT(params.backlight_lut_array[params.backlight_lut_array_size - 1] <= 0xFFFF); 1511 table->backlight_offsets[num_entries-1] = 1512 (uint16_t)params.backlight_lut_array[params.backlight_lut_array_size - 1]; 1513 1514 /* Setup all brightness levels between 0% and 100% exclusive 1515 * Fills brightness-to-backlight transform table. Backlight custom curve 1516 * describes transform from brightness to backlight. It will be defined 1517 * as set of thresholds and set of offsets, together, implying 1518 * extrapolation of custom curve into 16 uniformly spanned linear 1519 * segments. Each threshold/offset represented by 16 bit entry in 1520 * format U4.10. 1521 */ 1522 for (i = 1; i+1 < num_entries; i++) { 1523 lut_index = DIV_ROUNDUP((i * params.backlight_lut_array_size), num_entries); 1524 ASSERT(lut_index < params.backlight_lut_array_size); 1525 1526 unsigned int threshold_val = DIV_ROUNDUP((i * 65536), num_entries); 1527 unsigned int offset_val = params.backlight_lut_array[lut_index]; 1528 1529 ASSERT(threshold_val <= 0xFFFF); 1530 ASSERT(offset_val <= 0xFFFF); 1531 1532 table->backlight_thresholds[i] = (big_endian) ? 1533 cpu_to_be16((uint16_t)threshold_val) : cpu_to_le16((uint16_t)threshold_val); 1534 table->backlight_offsets[i] = (big_endian) ? 1535 cpu_to_be16((uint16_t)offset_val) : cpu_to_le16((uint16_t)offset_val); 1536 } 1537 } 1538 1539 static void fill_iram_v_2(struct iram_table_v_2 *ram_table, struct dmcu_iram_parameters params) 1540 { 1541 unsigned int set = params.set; 1542 1543 ram_table->min_abm_backlight = 1544 cpu_to_be16(params.min_abm_backlight); 1545 ram_table->deviation_gain = 0xb3; 1546 1547 ram_table->blRampReduction = 1548 cpu_to_be16(params.backlight_ramping_reduction); 1549 ram_table->blRampStart = 1550 cpu_to_be16(params.backlight_ramping_start); 1551 1552 ram_table->min_reduction[0][0] = min_reduction_table[abm_config[set][0]]; 1553 ram_table->min_reduction[1][0] = min_reduction_table[abm_config[set][0]]; 1554 ram_table->min_reduction[2][0] = min_reduction_table[abm_config[set][0]]; 1555 ram_table->min_reduction[3][0] = min_reduction_table[abm_config[set][0]]; 1556 ram_table->min_reduction[4][0] = min_reduction_table[abm_config[set][0]]; 1557 ram_table->max_reduction[0][0] = max_reduction_table[abm_config[set][0]]; 1558 ram_table->max_reduction[1][0] = max_reduction_table[abm_config[set][0]]; 1559 ram_table->max_reduction[2][0] = max_reduction_table[abm_config[set][0]]; 1560 ram_table->max_reduction[3][0] = max_reduction_table[abm_config[set][0]]; 1561 ram_table->max_reduction[4][0] = max_reduction_table[abm_config[set][0]]; 1562 1563 ram_table->min_reduction[0][1] = min_reduction_table[abm_config[set][1]]; 1564 ram_table->min_reduction[1][1] = min_reduction_table[abm_config[set][1]]; 1565 ram_table->min_reduction[2][1] = min_reduction_table[abm_config[set][1]]; 1566 ram_table->min_reduction[3][1] = min_reduction_table[abm_config[set][1]]; 1567 ram_table->min_reduction[4][1] = min_reduction_table[abm_config[set][1]]; 1568 ram_table->max_reduction[0][1] = max_reduction_table[abm_config[set][1]]; 1569 ram_table->max_reduction[1][1] = max_reduction_table[abm_config[set][1]]; 1570 ram_table->max_reduction[2][1] = max_reduction_table[abm_config[set][1]]; 1571 ram_table->max_reduction[3][1] = max_reduction_table[abm_config[set][1]]; 1572 ram_table->max_reduction[4][1] = max_reduction_table[abm_config[set][1]]; 1573 1574 ram_table->min_reduction[0][2] = min_reduction_table[abm_config[set][2]]; 1575 ram_table->min_reduction[1][2] = min_reduction_table[abm_config[set][2]]; 1576 ram_table->min_reduction[2][2] = min_reduction_table[abm_config[set][2]]; 1577 ram_table->min_reduction[3][2] = min_reduction_table[abm_config[set][2]]; 1578 ram_table->min_reduction[4][2] = min_reduction_table[abm_config[set][2]]; 1579 ram_table->max_reduction[0][2] = max_reduction_table[abm_config[set][2]]; 1580 ram_table->max_reduction[1][2] = max_reduction_table[abm_config[set][2]]; 1581 ram_table->max_reduction[2][2] = max_reduction_table[abm_config[set][2]]; 1582 ram_table->max_reduction[3][2] = max_reduction_table[abm_config[set][2]]; 1583 ram_table->max_reduction[4][2] = max_reduction_table[abm_config[set][2]]; 1584 1585 ram_table->min_reduction[0][3] = min_reduction_table[abm_config[set][3]]; 1586 ram_table->min_reduction[1][3] = min_reduction_table[abm_config[set][3]]; 1587 ram_table->min_reduction[2][3] = min_reduction_table[abm_config[set][3]]; 1588 ram_table->min_reduction[3][3] = min_reduction_table[abm_config[set][3]]; 1589 ram_table->min_reduction[4][3] = min_reduction_table[abm_config[set][3]]; 1590 ram_table->max_reduction[0][3] = max_reduction_table[abm_config[set][3]]; 1591 ram_table->max_reduction[1][3] = max_reduction_table[abm_config[set][3]]; 1592 ram_table->max_reduction[2][3] = max_reduction_table[abm_config[set][3]]; 1593 ram_table->max_reduction[3][3] = max_reduction_table[abm_config[set][3]]; 1594 ram_table->max_reduction[4][3] = max_reduction_table[abm_config[set][3]]; 1595 1596 ram_table->bright_pos_gain[0][0] = 0x20; 1597 ram_table->bright_pos_gain[0][1] = 0x20; 1598 ram_table->bright_pos_gain[0][2] = 0x20; 1599 ram_table->bright_pos_gain[0][3] = 0x20; 1600 ram_table->bright_pos_gain[1][0] = 0x20; 1601 ram_table->bright_pos_gain[1][1] = 0x20; 1602 ram_table->bright_pos_gain[1][2] = 0x20; 1603 ram_table->bright_pos_gain[1][3] = 0x20; 1604 ram_table->bright_pos_gain[2][0] = 0x20; 1605 ram_table->bright_pos_gain[2][1] = 0x20; 1606 ram_table->bright_pos_gain[2][2] = 0x20; 1607 ram_table->bright_pos_gain[2][3] = 0x20; 1608 ram_table->bright_pos_gain[3][0] = 0x20; 1609 ram_table->bright_pos_gain[3][1] = 0x20; 1610 ram_table->bright_pos_gain[3][2] = 0x20; 1611 ram_table->bright_pos_gain[3][3] = 0x20; 1612 ram_table->bright_pos_gain[4][0] = 0x20; 1613 ram_table->bright_pos_gain[4][1] = 0x20; 1614 ram_table->bright_pos_gain[4][2] = 0x20; 1615 ram_table->bright_pos_gain[4][3] = 0x20; 1616 ram_table->bright_neg_gain[0][0] = 0x00; 1617 ram_table->bright_neg_gain[0][1] = 0x00; 1618 ram_table->bright_neg_gain[0][2] = 0x00; 1619 ram_table->bright_neg_gain[0][3] = 0x00; 1620 ram_table->bright_neg_gain[1][0] = 0x00; 1621 ram_table->bright_neg_gain[1][1] = 0x00; 1622 ram_table->bright_neg_gain[1][2] = 0x00; 1623 ram_table->bright_neg_gain[1][3] = 0x00; 1624 ram_table->bright_neg_gain[2][0] = 0x00; 1625 ram_table->bright_neg_gain[2][1] = 0x00; 1626 ram_table->bright_neg_gain[2][2] = 0x00; 1627 ram_table->bright_neg_gain[2][3] = 0x00; 1628 ram_table->bright_neg_gain[3][0] = 0x00; 1629 ram_table->bright_neg_gain[3][1] = 0x00; 1630 ram_table->bright_neg_gain[3][2] = 0x00; 1631 ram_table->bright_neg_gain[3][3] = 0x00; 1632 ram_table->bright_neg_gain[4][0] = 0x00; 1633 ram_table->bright_neg_gain[4][1] = 0x00; 1634 ram_table->bright_neg_gain[4][2] = 0x00; 1635 ram_table->bright_neg_gain[4][3] = 0x00; 1636 ram_table->dark_pos_gain[0][0] = 0x00; 1637 ram_table->dark_pos_gain[0][1] = 0x00; 1638 ram_table->dark_pos_gain[0][2] = 0x00; 1639 ram_table->dark_pos_gain[0][3] = 0x00; 1640 ram_table->dark_pos_gain[1][0] = 0x00; 1641 ram_table->dark_pos_gain[1][1] = 0x00; 1642 ram_table->dark_pos_gain[1][2] = 0x00; 1643 ram_table->dark_pos_gain[1][3] = 0x00; 1644 ram_table->dark_pos_gain[2][0] = 0x00; 1645 ram_table->dark_pos_gain[2][1] = 0x00; 1646 ram_table->dark_pos_gain[2][2] = 0x00; 1647 ram_table->dark_pos_gain[2][3] = 0x00; 1648 ram_table->dark_pos_gain[3][0] = 0x00; 1649 ram_table->dark_pos_gain[3][1] = 0x00; 1650 ram_table->dark_pos_gain[3][2] = 0x00; 1651 ram_table->dark_pos_gain[3][3] = 0x00; 1652 ram_table->dark_pos_gain[4][0] = 0x00; 1653 ram_table->dark_pos_gain[4][1] = 0x00; 1654 ram_table->dark_pos_gain[4][2] = 0x00; 1655 ram_table->dark_pos_gain[4][3] = 0x00; 1656 ram_table->dark_neg_gain[0][0] = 0x00; 1657 ram_table->dark_neg_gain[0][1] = 0x00; 1658 ram_table->dark_neg_gain[0][2] = 0x00; 1659 ram_table->dark_neg_gain[0][3] = 0x00; 1660 ram_table->dark_neg_gain[1][0] = 0x00; 1661 ram_table->dark_neg_gain[1][1] = 0x00; 1662 ram_table->dark_neg_gain[1][2] = 0x00; 1663 ram_table->dark_neg_gain[1][3] = 0x00; 1664 ram_table->dark_neg_gain[2][0] = 0x00; 1665 ram_table->dark_neg_gain[2][1] = 0x00; 1666 ram_table->dark_neg_gain[2][2] = 0x00; 1667 ram_table->dark_neg_gain[2][3] = 0x00; 1668 ram_table->dark_neg_gain[3][0] = 0x00; 1669 ram_table->dark_neg_gain[3][1] = 0x00; 1670 ram_table->dark_neg_gain[3][2] = 0x00; 1671 ram_table->dark_neg_gain[3][3] = 0x00; 1672 ram_table->dark_neg_gain[4][0] = 0x00; 1673 ram_table->dark_neg_gain[4][1] = 0x00; 1674 ram_table->dark_neg_gain[4][2] = 0x00; 1675 ram_table->dark_neg_gain[4][3] = 0x00; 1676 1677 ram_table->iir_curve[0] = 0x65; 1678 ram_table->iir_curve[1] = 0x65; 1679 ram_table->iir_curve[2] = 0x65; 1680 ram_table->iir_curve[3] = 0x65; 1681 ram_table->iir_curve[4] = 0x65; 1682 1683 //Gamma 2.4 1684 ram_table->crgb_thresh[0] = cpu_to_be16(0x13b6); 1685 ram_table->crgb_thresh[1] = cpu_to_be16(0x1648); 1686 ram_table->crgb_thresh[2] = cpu_to_be16(0x18e3); 1687 ram_table->crgb_thresh[3] = cpu_to_be16(0x1b41); 1688 ram_table->crgb_thresh[4] = cpu_to_be16(0x1d46); 1689 ram_table->crgb_thresh[5] = cpu_to_be16(0x1f21); 1690 ram_table->crgb_thresh[6] = cpu_to_be16(0x2167); 1691 ram_table->crgb_thresh[7] = cpu_to_be16(0x2384); 1692 ram_table->crgb_offset[0] = cpu_to_be16(0x2999); 1693 ram_table->crgb_offset[1] = cpu_to_be16(0x3999); 1694 ram_table->crgb_offset[2] = cpu_to_be16(0x4666); 1695 ram_table->crgb_offset[3] = cpu_to_be16(0x5999); 1696 ram_table->crgb_offset[4] = cpu_to_be16(0x6333); 1697 ram_table->crgb_offset[5] = cpu_to_be16(0x7800); 1698 ram_table->crgb_offset[6] = cpu_to_be16(0x8c00); 1699 ram_table->crgb_offset[7] = cpu_to_be16(0xa000); 1700 ram_table->crgb_slope[0] = cpu_to_be16(0x3147); 1701 ram_table->crgb_slope[1] = cpu_to_be16(0x2978); 1702 ram_table->crgb_slope[2] = cpu_to_be16(0x23a2); 1703 ram_table->crgb_slope[3] = cpu_to_be16(0x1f55); 1704 ram_table->crgb_slope[4] = cpu_to_be16(0x1c63); 1705 ram_table->crgb_slope[5] = cpu_to_be16(0x1a0f); 1706 ram_table->crgb_slope[6] = cpu_to_be16(0x178d); 1707 ram_table->crgb_slope[7] = cpu_to_be16(0x15ab); 1708 1709 fill_backlight_transform_table( 1710 params, ram_table); 1711 } 1712 1713 static void fill_iram_v_2_2(struct iram_table_v_2_2 *ram_table, struct dmcu_iram_parameters params) 1714 { 1715 unsigned int set = params.set; 1716 1717 ram_table->flags = 0x0; 1718 1719 ram_table->min_abm_backlight = 1720 cpu_to_be16(params.min_abm_backlight); 1721 1722 ram_table->deviation_gain[0] = 0xb3; 1723 ram_table->deviation_gain[1] = 0xa8; 1724 ram_table->deviation_gain[2] = 0x98; 1725 ram_table->deviation_gain[3] = 0x68; 1726 1727 ram_table->min_reduction[0][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1728 ram_table->min_reduction[1][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1729 ram_table->min_reduction[2][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1730 ram_table->min_reduction[3][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1731 ram_table->min_reduction[4][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1732 ram_table->max_reduction[0][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1733 ram_table->max_reduction[1][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1734 ram_table->max_reduction[2][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1735 ram_table->max_reduction[3][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1736 ram_table->max_reduction[4][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1737 1738 ram_table->min_reduction[0][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 1739 ram_table->min_reduction[1][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 1740 ram_table->min_reduction[2][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 1741 ram_table->min_reduction[3][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 1742 ram_table->min_reduction[4][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 1743 ram_table->max_reduction[0][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 1744 ram_table->max_reduction[1][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 1745 ram_table->max_reduction[2][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 1746 ram_table->max_reduction[3][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 1747 ram_table->max_reduction[4][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 1748 1749 ram_table->min_reduction[0][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 1750 ram_table->min_reduction[1][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 1751 ram_table->min_reduction[2][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 1752 ram_table->min_reduction[3][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 1753 ram_table->min_reduction[4][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 1754 ram_table->max_reduction[0][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 1755 ram_table->max_reduction[1][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 1756 ram_table->max_reduction[2][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 1757 ram_table->max_reduction[3][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 1758 ram_table->max_reduction[4][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 1759 1760 ram_table->min_reduction[0][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 1761 ram_table->min_reduction[1][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 1762 ram_table->min_reduction[2][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 1763 ram_table->min_reduction[3][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 1764 ram_table->min_reduction[4][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 1765 ram_table->max_reduction[0][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 1766 ram_table->max_reduction[1][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 1767 ram_table->max_reduction[2][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 1768 ram_table->max_reduction[3][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 1769 ram_table->max_reduction[4][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 1770 1771 ram_table->bright_pos_gain[0][0] = 0x20; 1772 ram_table->bright_pos_gain[0][1] = 0x20; 1773 ram_table->bright_pos_gain[0][2] = 0x20; 1774 ram_table->bright_pos_gain[0][3] = 0x20; 1775 ram_table->bright_pos_gain[1][0] = 0x20; 1776 ram_table->bright_pos_gain[1][1] = 0x20; 1777 ram_table->bright_pos_gain[1][2] = 0x20; 1778 ram_table->bright_pos_gain[1][3] = 0x20; 1779 ram_table->bright_pos_gain[2][0] = 0x20; 1780 ram_table->bright_pos_gain[2][1] = 0x20; 1781 ram_table->bright_pos_gain[2][2] = 0x20; 1782 ram_table->bright_pos_gain[2][3] = 0x20; 1783 ram_table->bright_pos_gain[3][0] = 0x20; 1784 ram_table->bright_pos_gain[3][1] = 0x20; 1785 ram_table->bright_pos_gain[3][2] = 0x20; 1786 ram_table->bright_pos_gain[3][3] = 0x20; 1787 ram_table->bright_pos_gain[4][0] = 0x20; 1788 ram_table->bright_pos_gain[4][1] = 0x20; 1789 ram_table->bright_pos_gain[4][2] = 0x20; 1790 ram_table->bright_pos_gain[4][3] = 0x20; 1791 1792 ram_table->dark_pos_gain[0][0] = 0x00; 1793 ram_table->dark_pos_gain[0][1] = 0x00; 1794 ram_table->dark_pos_gain[0][2] = 0x00; 1795 ram_table->dark_pos_gain[0][3] = 0x00; 1796 ram_table->dark_pos_gain[1][0] = 0x00; 1797 ram_table->dark_pos_gain[1][1] = 0x00; 1798 ram_table->dark_pos_gain[1][2] = 0x00; 1799 ram_table->dark_pos_gain[1][3] = 0x00; 1800 ram_table->dark_pos_gain[2][0] = 0x00; 1801 ram_table->dark_pos_gain[2][1] = 0x00; 1802 ram_table->dark_pos_gain[2][2] = 0x00; 1803 ram_table->dark_pos_gain[2][3] = 0x00; 1804 ram_table->dark_pos_gain[3][0] = 0x00; 1805 ram_table->dark_pos_gain[3][1] = 0x00; 1806 ram_table->dark_pos_gain[3][2] = 0x00; 1807 ram_table->dark_pos_gain[3][3] = 0x00; 1808 ram_table->dark_pos_gain[4][0] = 0x00; 1809 ram_table->dark_pos_gain[4][1] = 0x00; 1810 ram_table->dark_pos_gain[4][2] = 0x00; 1811 ram_table->dark_pos_gain[4][3] = 0x00; 1812 1813 ram_table->hybrid_factor[0] = 0xff; 1814 ram_table->hybrid_factor[1] = 0xff; 1815 ram_table->hybrid_factor[2] = 0xff; 1816 ram_table->hybrid_factor[3] = 0xc0; 1817 1818 ram_table->contrast_factor[0] = 0x99; 1819 ram_table->contrast_factor[1] = 0x99; 1820 ram_table->contrast_factor[2] = 0x90; 1821 ram_table->contrast_factor[3] = 0x80; 1822 1823 ram_table->iir_curve[0] = 0x65; 1824 ram_table->iir_curve[1] = 0x65; 1825 ram_table->iir_curve[2] = 0x65; 1826 ram_table->iir_curve[3] = 0x65; 1827 ram_table->iir_curve[4] = 0x65; 1828 1829 //Gamma 2.2 1830 ram_table->crgb_thresh[0] = cpu_to_be16(0x127c); 1831 ram_table->crgb_thresh[1] = cpu_to_be16(0x151b); 1832 ram_table->crgb_thresh[2] = cpu_to_be16(0x17d5); 1833 ram_table->crgb_thresh[3] = cpu_to_be16(0x1a56); 1834 ram_table->crgb_thresh[4] = cpu_to_be16(0x1c83); 1835 ram_table->crgb_thresh[5] = cpu_to_be16(0x1e72); 1836 ram_table->crgb_thresh[6] = cpu_to_be16(0x20f0); 1837 ram_table->crgb_thresh[7] = cpu_to_be16(0x232b); 1838 ram_table->crgb_offset[0] = cpu_to_be16(0x2999); 1839 ram_table->crgb_offset[1] = cpu_to_be16(0x3999); 1840 ram_table->crgb_offset[2] = cpu_to_be16(0x4666); 1841 ram_table->crgb_offset[3] = cpu_to_be16(0x5999); 1842 ram_table->crgb_offset[4] = cpu_to_be16(0x6333); 1843 ram_table->crgb_offset[5] = cpu_to_be16(0x7800); 1844 ram_table->crgb_offset[6] = cpu_to_be16(0x8c00); 1845 ram_table->crgb_offset[7] = cpu_to_be16(0xa000); 1846 ram_table->crgb_slope[0] = cpu_to_be16(0x3609); 1847 ram_table->crgb_slope[1] = cpu_to_be16(0x2dfa); 1848 ram_table->crgb_slope[2] = cpu_to_be16(0x27ea); 1849 ram_table->crgb_slope[3] = cpu_to_be16(0x235d); 1850 ram_table->crgb_slope[4] = cpu_to_be16(0x2042); 1851 ram_table->crgb_slope[5] = cpu_to_be16(0x1dc3); 1852 ram_table->crgb_slope[6] = cpu_to_be16(0x1b1a); 1853 ram_table->crgb_slope[7] = cpu_to_be16(0x1910); 1854 1855 fill_backlight_transform_table_v_2_2( 1856 params, ram_table, true); 1857 } 1858 1859 static void fill_iram_v_2_3(struct iram_table_v_2_2 *ram_table, struct dmcu_iram_parameters params, bool big_endian) 1860 { 1861 unsigned int i, j; 1862 unsigned int set = params.set; 1863 1864 ram_table->flags = 0x0; 1865 ram_table->min_abm_backlight = (uint16_t)((big_endian) ? 1866 cpu_to_be16(params.min_abm_backlight) : 1867 cpu_to_le16(params.min_abm_backlight)); 1868 1869 for (i = 0; i < NUM_AGGR_LEVEL; i++) { 1870 ram_table->hybrid_factor[i] = (uint8_t)abm_settings[set][i].brightness_gain; 1871 ram_table->contrast_factor[i] = abm_settings[set][i].contrast_factor; 1872 ram_table->deviation_gain[i] = abm_settings[set][i].deviation_gain; 1873 ram_table->min_knee[i] = abm_settings[set][i].min_knee; 1874 ram_table->max_knee[i] = abm_settings[set][i].max_knee; 1875 1876 for (j = 0; j < NUM_AMBI_LEVEL; j++) { 1877 ram_table->min_reduction[j][i] = abm_settings[set][i].min_reduction; 1878 ram_table->max_reduction[j][i] = abm_settings[set][i].max_reduction; 1879 ram_table->bright_pos_gain[j][i] = abm_settings[set][i].bright_pos_gain; 1880 ram_table->dark_pos_gain[j][i] = abm_settings[set][i].dark_pos_gain; 1881 } 1882 } 1883 1884 ram_table->iir_curve[0] = 0x65; 1885 ram_table->iir_curve[1] = 0x65; 1886 ram_table->iir_curve[2] = 0x65; 1887 ram_table->iir_curve[3] = 0x65; 1888 ram_table->iir_curve[4] = 0x65; 1889 1890 //Gamma 2.2 1891 ram_table->crgb_thresh[0] = bswap16_based_on_endian(big_endian, 0x127c); 1892 ram_table->crgb_thresh[1] = bswap16_based_on_endian(big_endian, 0x151b); 1893 ram_table->crgb_thresh[2] = bswap16_based_on_endian(big_endian, 0x17d5); 1894 ram_table->crgb_thresh[3] = bswap16_based_on_endian(big_endian, 0x1a56); 1895 ram_table->crgb_thresh[4] = bswap16_based_on_endian(big_endian, 0x1c83); 1896 ram_table->crgb_thresh[5] = bswap16_based_on_endian(big_endian, 0x1e72); 1897 ram_table->crgb_thresh[6] = bswap16_based_on_endian(big_endian, 0x20f0); 1898 ram_table->crgb_thresh[7] = bswap16_based_on_endian(big_endian, 0x232b); 1899 ram_table->crgb_offset[0] = bswap16_based_on_endian(big_endian, 0x2999); 1900 ram_table->crgb_offset[1] = bswap16_based_on_endian(big_endian, 0x3999); 1901 ram_table->crgb_offset[2] = bswap16_based_on_endian(big_endian, 0x4666); 1902 ram_table->crgb_offset[3] = bswap16_based_on_endian(big_endian, 0x5999); 1903 ram_table->crgb_offset[4] = bswap16_based_on_endian(big_endian, 0x6333); 1904 ram_table->crgb_offset[5] = bswap16_based_on_endian(big_endian, 0x7800); 1905 ram_table->crgb_offset[6] = bswap16_based_on_endian(big_endian, 0x8c00); 1906 ram_table->crgb_offset[7] = bswap16_based_on_endian(big_endian, 0xa000); 1907 ram_table->crgb_slope[0] = bswap16_based_on_endian(big_endian, 0x3609); 1908 ram_table->crgb_slope[1] = bswap16_based_on_endian(big_endian, 0x2dfa); 1909 ram_table->crgb_slope[2] = bswap16_based_on_endian(big_endian, 0x27ea); 1910 ram_table->crgb_slope[3] = bswap16_based_on_endian(big_endian, 0x235d); 1911 ram_table->crgb_slope[4] = bswap16_based_on_endian(big_endian, 0x2042); 1912 ram_table->crgb_slope[5] = bswap16_based_on_endian(big_endian, 0x1dc3); 1913 ram_table->crgb_slope[6] = bswap16_based_on_endian(big_endian, 0x1b1a); 1914 ram_table->crgb_slope[7] = bswap16_based_on_endian(big_endian, 0x1910); 1915 1916 fill_backlight_transform_table_v_2_2( 1917 params, ram_table, big_endian); 1918 } 1919 1920 bool dmub_init_abm_config(struct resource_pool *res_pool, 1921 struct dmcu_iram_parameters params, 1922 unsigned int inst) 1923 { 1924 struct iram_table_v_2_2 ram_table; 1925 struct abm_config_table config; 1926 unsigned int set = params.set; 1927 bool result = false; 1928 uint32_t i, j = 0; 1929 1930 if (res_pool->abm == NULL && res_pool->multiple_abms[inst] == NULL) 1931 return false; 1932 1933 memset(&ram_table, 0, sizeof(ram_table)); 1934 memset(&config, 0, sizeof(config)); 1935 1936 fill_iram_v_2_3(&ram_table, params, false); 1937 1938 // We must copy to structure that is aligned to 32-bit 1939 for (i = 0; i < NUM_POWER_FN_SEGS; i++) { 1940 config.crgb_thresh[i] = ram_table.crgb_thresh[i]; 1941 config.crgb_offset[i] = ram_table.crgb_offset[i]; 1942 config.crgb_slope[i] = ram_table.crgb_slope[i]; 1943 } 1944 1945 for (i = 0; i < NUM_BL_CURVE_SEGS; i++) { 1946 config.backlight_thresholds[i] = ram_table.backlight_thresholds[i]; 1947 config.backlight_offsets[i] = ram_table.backlight_offsets[i]; 1948 } 1949 1950 for (i = 0; i < NUM_AMBI_LEVEL; i++) 1951 config.iir_curve[i] = ram_table.iir_curve[i]; 1952 1953 for (i = 0; i < NUM_AMBI_LEVEL; i++) { 1954 for (j = 0; j < NUM_AGGR_LEVEL; j++) { 1955 config.min_reduction[i][j] = ram_table.min_reduction[i][j]; 1956 config.max_reduction[i][j] = ram_table.max_reduction[i][j]; 1957 config.bright_pos_gain[i][j] = ram_table.bright_pos_gain[i][j]; 1958 config.dark_pos_gain[i][j] = ram_table.dark_pos_gain[i][j]; 1959 } 1960 } 1961 1962 for (i = 0; i < NUM_AGGR_LEVEL; i++) { 1963 config.hybrid_factor[i] = ram_table.hybrid_factor[i]; 1964 config.contrast_factor[i] = ram_table.contrast_factor[i]; 1965 config.deviation_gain[i] = ram_table.deviation_gain[i]; 1966 config.min_knee[i] = ram_table.min_knee[i]; 1967 config.max_knee[i] = ram_table.max_knee[i]; 1968 } 1969 1970 if (params.backlight_ramping_override) { 1971 1972 ASSERT(params.backlight_ramping_reduction <= 0xFFFF); 1973 ASSERT(params.backlight_ramping_start <= 0xFFFF); 1974 for (i = 0; i < NUM_AGGR_LEVEL; i++) { 1975 config.blRampReduction[i] = (uint16_t)params.backlight_ramping_reduction; 1976 config.blRampStart[i] = (uint16_t)params.backlight_ramping_start; 1977 } 1978 } else { 1979 for (i = 0; i < NUM_AGGR_LEVEL; i++) { 1980 config.blRampReduction[i] = abm_settings[set][i].blRampReduction; 1981 config.blRampStart[i] = abm_settings[set][i].blRampStart; 1982 } 1983 } 1984 1985 config.min_abm_backlight = ram_table.min_abm_backlight; 1986 1987 if (res_pool->multiple_abms[inst]) { 1988 result = res_pool->multiple_abms[inst]->funcs->init_abm_config( 1989 res_pool->multiple_abms[inst], (char *)(&config), sizeof(struct abm_config_table), inst); 1990 } else 1991 result = res_pool->abm->funcs->init_abm_config( 1992 res_pool->abm, (char *)(&config), sizeof(struct abm_config_table), 0); 1993 1994 return result; 1995 } 1996 1997 bool dmcu_load_iram(struct dmcu *dmcu, 1998 struct dmcu_iram_parameters params) 1999 { 2000 unsigned char ram_table[IRAM_SIZE]; 2001 bool result = false; 2002 2003 if (dmcu == NULL) 2004 return false; 2005 2006 if (dmcu && !dmcu->funcs->is_dmcu_initialized(dmcu)) 2007 return true; 2008 2009 memset(&ram_table, 0, sizeof(ram_table)); 2010 2011 if (dmcu->dmcu_version.abm_version == 0x24) { 2012 fill_iram_v_2_3((struct iram_table_v_2_2 *)ram_table, params, true); 2013 result = dmcu->funcs->load_iram(dmcu, 0, (char *)(&ram_table), 2014 IRAM_RESERVE_AREA_START_V2_2); 2015 } else if (dmcu->dmcu_version.abm_version == 0x23) { 2016 fill_iram_v_2_3((struct iram_table_v_2_2 *)ram_table, params, true); 2017 2018 result = dmcu->funcs->load_iram( 2019 dmcu, 0, (char *)(&ram_table), IRAM_RESERVE_AREA_START_V2_2); 2020 } else if (dmcu->dmcu_version.abm_version == 0x22) { 2021 fill_iram_v_2_2((struct iram_table_v_2_2 *)ram_table, params); 2022 2023 result = dmcu->funcs->load_iram( 2024 dmcu, 0, (char *)(&ram_table), IRAM_RESERVE_AREA_START_V2_2); 2025 } else { 2026 fill_iram_v_2((struct iram_table_v_2 *)ram_table, params); 2027 2028 result = dmcu->funcs->load_iram( 2029 dmcu, 0, (char *)(&ram_table), IRAM_RESERVE_AREA_START_V2); 2030 2031 if (result) 2032 result = dmcu->funcs->load_iram( 2033 dmcu, IRAM_RESERVE_AREA_END_V2 + 1, 2034 (char *)(&ram_table) + IRAM_RESERVE_AREA_END_V2 + 1, 2035 sizeof(ram_table) - IRAM_RESERVE_AREA_END_V2 - 1); 2036 } 2037 2038 return result; 2039 } 2040 2041 bool fill_custom_backlight_caps(unsigned int config_no, struct dm_acpi_atif_backlight_caps *caps) 2042 { 2043 unsigned int data_points_size; 2044 uint64_t caps_size; 2045 2046 if (config_no >= ARRAY_SIZE(custom_backlight_profiles)) 2047 return false; 2048 2049 data_points_size = custom_backlight_profiles[config_no].num_data_points 2050 * sizeof(custom_backlight_profiles[config_no].data_points[0]); 2051 2052 caps_size = sizeof(struct dm_acpi_atif_backlight_caps) - sizeof(caps->data_points) + data_points_size; 2053 ASSERT(caps_size <= 0xFFFF); 2054 caps->size = (uint16_t)caps_size; 2055 caps->flags = 0; 2056 caps->error_code = 0; 2057 caps->ac_level_percentage = custom_backlight_profiles[config_no].ac_level_percentage; 2058 caps->dc_level_percentage = custom_backlight_profiles[config_no].dc_level_percentage; 2059 caps->min_input_signal = custom_backlight_profiles[config_no].min_input_signal; 2060 caps->max_input_signal = custom_backlight_profiles[config_no].max_input_signal; 2061 caps->num_data_points = (uint8_t)custom_backlight_profiles[config_no].num_data_points; 2062 memcpy(caps->data_points, custom_backlight_profiles[config_no].data_points, data_points_size); 2063 return true; 2064 } 2065