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 /* Maximum brightness expressed in millipercent (100% * 1000). */ 249 #define BACKLIGHT_MILLIPERCENT_MAX (100 * 1000) 250 251 static uint16_t backlight_8_to_16(unsigned int backlight_8bit) 252 { 253 return (uint16_t)(backlight_8bit * 0x101); 254 } 255 256 /* Caches the link's backlight control type on the panel's backlight 257 * properties so the brightness translation helpers can pick the correct 258 * mapping. 259 */ 260 void mod_power_set_backlight_control_type(struct core_power *core_power, 261 unsigned int inst, enum backlight_control_type backlight_control_type) 262 { 263 if (core_power == NULL) 264 return; 265 266 core_power->bl_prop[inst].backlight_control_type = backlight_control_type; 267 } 268 269 /* Returns true when the panel uses the VESA AUX backlight control path, which 270 * requires zero-anchored linear brightness interpolation. 271 */ 272 static bool is_vesa_abc(struct core_power *core_power, unsigned int inst) 273 { 274 if (core_power == NULL) 275 return false; 276 277 return core_power->bl_prop[inst].backlight_control_type == 278 BACKLIGHT_CONTROL_VESA_AUX; 279 } 280 281 /* Legacy millipercent→millinit conversion: scales linearly between 282 * [0%, 100%] → [min_brightness_millinits, max_brightness_millinits]. 283 */ 284 static unsigned int backlight_millipercent_to_millinit_legacy( 285 struct core_power *core_power, unsigned int millipercent, unsigned int inst) 286 { 287 if (core_power == NULL) 288 return 0; 289 290 return (unsigned int)div_u64((unsigned long long)millipercent * 291 core_power->bl_prop[inst].nits_range, 292 100000) + 293 core_power->bl_prop[inst].min_brightness_millinits; 294 } 295 296 /* Converts millipercent to millinit. 297 * For VESA AUX brightness control, uses simple linear interpolation with 298 * 0% = 0 nits and 100% = max_brightness_millinits. 299 * Otherwise, falls back to the legacy min→max nits range mapping. 300 */ 301 unsigned int backlight_millipercent_to_millinit( 302 struct core_power *core_power, unsigned int millipercent, unsigned int inst) 303 { 304 if (!is_vesa_abc(core_power, inst)) 305 return backlight_millipercent_to_millinit_legacy(core_power, millipercent, inst); 306 307 if (core_power == NULL) 308 return 0; 309 310 if (millipercent >= BACKLIGHT_MILLIPERCENT_MAX) 311 return core_power->bl_prop[inst].max_brightness_millinits; 312 313 return (unsigned int)div_u64((unsigned long long)millipercent * 314 core_power->bl_prop[inst].max_brightness_millinits, 315 BACKLIGHT_MILLIPERCENT_MAX); 316 } 317 318 /* Legacy millinit→millipercent conversion: scales linearly between 319 * [min_brightness_millinits, max_brightness_millinits] → [0%, 100%]. 320 */ 321 static unsigned int backlight_millinit_to_millipercent_legacy( 322 struct core_power *core_power, unsigned int millinit, unsigned int inst) 323 { 324 unsigned int millipercent = 0; 325 unsigned long long numerator = 0; 326 327 if (core_power == NULL) 328 return 0; 329 330 if (millinit <= core_power->bl_prop[inst].min_brightness_millinits) 331 return 0; 332 333 if (millinit >= core_power->bl_prop[inst].max_brightness_millinits) 334 return BACKLIGHT_MILLIPERCENT_MAX; 335 336 numerator = (((unsigned long long)millinit) - 337 core_power->bl_prop[inst].min_brightness_millinits) * 100000; 338 millipercent = ((unsigned int)div_u64(numerator, 339 core_power->bl_prop[inst].nits_range)); 340 341 return millipercent; 342 } 343 344 /* Converts millinit to millipercent. 345 * For VESA AUX brightness control, uses simple linear interpolation with 346 * 0 nits = 0% and max_brightness_millinits = 100%. 347 * Otherwise, falls back to the legacy min→max nits range mapping. 348 */ 349 static unsigned int backlight_millinit_to_millipercent( 350 struct core_power *core_power, unsigned int millinit, unsigned int inst) 351 { 352 if (!is_vesa_abc(core_power, inst)) 353 return backlight_millinit_to_millipercent_legacy(core_power, millinit, inst); 354 355 if (core_power == NULL) 356 return 0; 357 358 if (core_power->bl_prop[inst].max_brightness_millinits == 0) 359 return 0; 360 361 if (millinit >= core_power->bl_prop[inst].max_brightness_millinits) 362 return BACKLIGHT_MILLIPERCENT_MAX; 363 364 return (unsigned int)div_u64((unsigned long long)millinit * 100000, 365 core_power->bl_prop[inst].max_brightness_millinits); 366 } 367 368 static unsigned int backlight_pwm_to_millipercent_legacy( 369 struct core_power *core_power, unsigned int pwm, unsigned int inst) 370 { 371 unsigned int millipercent = 0; 372 unsigned int max_index = 0; 373 374 if (core_power == NULL) 375 return 0; 376 377 if (!core_power->bl_prop[inst].backlight_caps_valid) 378 return 0; 379 380 /* Doesn't really make sense to have one single backlight level 381 * possible... 382 */ 383 if (core_power->bl_prop[inst].num_backlight_levels < 2) 384 return 0; 385 386 max_index = core_power->bl_prop[inst].num_backlight_levels - 1; 387 388 if (pwm <= core_power->bl_prop[inst].backlight_lut[0]) 389 return 0; 390 391 if (pwm > core_power->bl_prop[inst].backlight_lut[max_index]) 392 return (100 * 1000); 393 394 /* We need to do a binary search over the array for where the pwm level 395 * is in the lut. Based on the index we can determine percentage. 396 */ 397 unsigned int min = 0; 398 unsigned int max = max_index; 399 unsigned int mid = 0; 400 401 while (max >= min) { 402 mid = (min + max) / 2; /* floor of half range */ 403 404 if (core_power->bl_prop[inst].backlight_lut[mid] < pwm) 405 min = mid + 1; 406 else if (core_power->bl_prop[inst].backlight_lut[mid] > pwm) 407 max = mid - 1; 408 else 409 break; 410 } 411 412 /* In this case, exact match is not found. Check if mid/min/max 413 * value is actually closer. 414 */ 415 if (max < min) { 416 unsigned int min_delta; 417 unsigned int mid_delta; 418 unsigned int max_delta; 419 420 min_delta = (core_power->bl_prop[inst].backlight_lut[min] > pwm) ? 421 core_power->bl_prop[inst].backlight_lut[min] - pwm : 422 pwm - core_power->bl_prop[inst].backlight_lut[min]; 423 424 mid_delta = (core_power->bl_prop[inst].backlight_lut[mid] > pwm) ? 425 core_power->bl_prop[inst].backlight_lut[mid] - pwm : 426 pwm - core_power->bl_prop[inst].backlight_lut[mid]; 427 428 max_delta = (core_power->bl_prop[inst].backlight_lut[max] > pwm) ? 429 core_power->bl_prop[inst].backlight_lut[max] - pwm : 430 pwm - core_power->bl_prop[inst].backlight_lut[max]; 431 432 if ((min_delta < mid_delta) && (min_delta < max_delta)) 433 mid = min; 434 435 if ((max_delta < mid_delta) && (max_delta < min_delta)) 436 mid = max; 437 } 438 439 /* No interpolation, just take closest index */ 440 millipercent = BACKLIGHT_MILLIPERCENT_MAX * mid / max_index; 441 442 return millipercent; 443 } 444 445 /* Converts PWM to millipercent. 446 * For VESA AUX brightness control, uses simple linear interpolation with 447 * 0 PWM = 0% and max_backlight_pwm = 100%. 448 * Otherwise, falls back to the legacy LUT based mapping. 449 */ 450 static unsigned int backlight_pwm_to_millipercent( 451 struct core_power *core_power, unsigned int pwm, unsigned int inst) 452 { 453 if (!is_vesa_abc(core_power, inst)) 454 return backlight_pwm_to_millipercent_legacy(core_power, pwm, inst); 455 456 if (core_power == NULL) 457 return 0; 458 459 if (core_power->bl_prop[inst].max_backlight_pwm == 0) 460 return 0; 461 462 if (pwm >= core_power->bl_prop[inst].max_backlight_pwm) 463 return BACKLIGHT_MILLIPERCENT_MAX; 464 465 return (unsigned int)div_u64((unsigned long long)pwm * 466 BACKLIGHT_MILLIPERCENT_MAX, 467 core_power->bl_prop[inst].max_backlight_pwm); 468 } 469 470 static unsigned int backlight_pwm_to_millinit_legacy( 471 struct core_power *core_power, unsigned int pwm, unsigned int inst) 472 { 473 unsigned int millinit = 0; 474 475 if (core_power == NULL) 476 return 0; 477 478 if (pwm <= core_power->bl_prop[inst].min_backlight_pwm) 479 return core_power->bl_prop[inst].min_brightness_millinits; 480 481 if (pwm >= core_power->bl_prop[inst].max_backlight_pwm) 482 return core_power->bl_prop[inst].max_brightness_millinits; 483 484 millinit = ((unsigned int)div_u64(((unsigned long long)pwm - 485 core_power->bl_prop[inst].min_backlight_pwm) * 486 core_power->bl_prop[inst].nits_range, 487 core_power->bl_prop[inst].backlight_range)); 488 489 millinit += core_power->bl_prop[inst].min_brightness_millinits; 490 491 if (millinit > core_power->bl_prop[inst].max_brightness_millinits) 492 millinit = core_power->bl_prop[inst].max_brightness_millinits; 493 494 return millinit; 495 } 496 497 /* Converts PWM to millinit. 498 * For VESA AUX brightness control, uses simple linear interpolation with 499 * 0 PWM = 0 nits and max_backlight_pwm = max_brightness_millinits. 500 * Otherwise, falls back to the legacy min→max nits range mapping. 501 */ 502 static unsigned int backlight_pwm_to_millinit( 503 struct core_power *core_power, unsigned int pwm, unsigned int inst) 504 { 505 if (!is_vesa_abc(core_power, inst)) 506 return backlight_pwm_to_millinit_legacy(core_power, pwm, inst); 507 508 if (core_power == NULL) 509 return 0; 510 511 if (core_power->bl_prop[inst].max_backlight_pwm == 0) 512 return 0; 513 514 if (pwm >= core_power->bl_prop[inst].max_backlight_pwm) 515 return core_power->bl_prop[inst].max_brightness_millinits; 516 517 return (unsigned int)div_u64((unsigned long long)pwm * 518 core_power->bl_prop[inst].max_brightness_millinits, 519 core_power->bl_prop[inst].max_backlight_pwm); 520 } 521 522 static unsigned int backlight_millipercent_to_pwm_legacy( 523 struct core_power *core_power, unsigned int millipercent, unsigned int inst) 524 { 525 unsigned int pwm = (unsigned int)-1; 526 unsigned int index = 0; 527 528 if (core_power == NULL) 529 return 0; 530 531 // Bypass the brightness mapping LUT 532 if (core_power->bl_prop->use_linear_backlight_curve) { 533 pwm = core_power->bl_prop[inst].min_backlight_pwm + 534 (unsigned int) div_u64((unsigned long long) millipercent * 535 core_power->bl_prop[inst].backlight_range, 536 100000); 537 538 if (pwm > core_power->bl_prop[inst].max_backlight_pwm) 539 pwm = core_power->bl_prop[inst].max_backlight_pwm; 540 541 return pwm; 542 } 543 544 if (millipercent >= (100 * 1000)) 545 return core_power->bl_prop[inst].backlight_lut[core_power->bl_prop[inst].num_backlight_levels - 1]; 546 547 /* This will give the floor index. */ 548 index = ((core_power->bl_prop[inst].num_backlight_levels - 1) * 549 millipercent) / 100000; 550 /* Null check otherwise eDP doesn't lightup when connected to DP1 */ 551 if (core_power->bl_prop[inst].backlight_lut == NULL) 552 return pwm; 553 554 pwm = core_power->bl_prop[inst].backlight_lut[index]; 555 556 return pwm; 557 } 558 559 /* Converts millipercent to PWM. 560 * For VESA AUX brightness control, uses simple linear interpolation with 561 * 0% = 0 PWM and 100% = max_backlight_pwm. 562 * Otherwise, falls back to the legacy LUT based mapping. 563 */ 564 unsigned int backlight_millipercent_to_pwm( 565 struct core_power *core_power, unsigned int millipercent, unsigned int inst) 566 { 567 if (!is_vesa_abc(core_power, inst)) 568 return backlight_millipercent_to_pwm_legacy(core_power, millipercent, inst); 569 570 if (core_power == NULL) 571 return 0; 572 573 if (millipercent >= BACKLIGHT_MILLIPERCENT_MAX) 574 return core_power->bl_prop[inst].max_backlight_pwm; 575 576 return (unsigned int)div_u64((unsigned long long)millipercent * 577 core_power->bl_prop[inst].max_backlight_pwm, 578 BACKLIGHT_MILLIPERCENT_MAX); 579 } 580 581 /* Legacy millinit→PWM conversion: scales linearly between 582 * [min_brightness_millinits, max_brightness_millinits] → [min_backlight_pwm, max_backlight_pwm]. 583 */ 584 static unsigned int backlight_millinit_to_pwm_legacy( 585 struct core_power *core_power, unsigned int millinit, unsigned int inst) 586 { 587 unsigned int pwm = 0; 588 589 if (core_power == NULL) 590 return 0; 591 592 /* For nits based brightness, the signal will be a value 593 * between the minimum and maximum value. 594 */ 595 if (millinit >= core_power->bl_prop[inst].max_brightness_millinits) 596 return core_power->bl_prop[inst].max_backlight_pwm; 597 else if (millinit <= core_power->bl_prop[inst].min_brightness_millinits) 598 return core_power->bl_prop[inst].min_backlight_pwm; 599 600 pwm = ((unsigned int)div_u64(((unsigned long long)millinit - 601 core_power->bl_prop[inst].min_brightness_millinits) * 602 core_power->bl_prop[inst].backlight_range, 603 core_power->bl_prop[inst].nits_range)); 604 605 pwm += core_power->bl_prop[inst].min_backlight_pwm; 606 607 if (pwm > core_power->bl_prop[inst].max_backlight_pwm) 608 pwm = core_power->bl_prop[inst].max_backlight_pwm; 609 610 return pwm; 611 } 612 613 /* Converts millinit to PWM. 614 * For VESA AUX brightness control, uses simple linear interpolation with 615 * 0 nits = 0 PWM and max_brightness_millinits = max_backlight_pwm. 616 * Otherwise, falls back to the legacy min→max nits range mapping. 617 */ 618 static unsigned int backlight_millinit_to_pwm( 619 struct core_power *core_power, unsigned int millinit, unsigned int inst) 620 { 621 if (!is_vesa_abc(core_power, inst)) 622 return backlight_millinit_to_pwm_legacy(core_power, millinit, inst); 623 624 if (core_power == NULL) 625 return 0; 626 627 if (core_power->bl_prop[inst].max_brightness_millinits == 0) 628 return 0; 629 630 if (millinit >= core_power->bl_prop[inst].max_brightness_millinits) 631 return core_power->bl_prop[inst].max_backlight_pwm; 632 633 /* millinit is bounded by max_brightness_millinits (up to ~10^7 for ~10000 nits). 634 * max_backlight_pwm is a 32-bit value. 635 * Worst-case product (~10^7 × UINT_MAX ≈ 4×10^16) fits within unsigned long long. 636 */ 637 return (unsigned int)div_u64((unsigned long long)millinit * 638 core_power->bl_prop[inst].max_backlight_pwm, 639 core_power->bl_prop[inst].max_brightness_millinits); 640 } 641 642 static bool validate_ext_backlight_caps( 643 struct dm_acpi_atif_backlight_caps *ext_backlight_caps) 644 { 645 unsigned int i; 646 unsigned int num_of_data_points = 0; 647 unsigned int last_signal_level = 0; 648 unsigned int last_luminance = 0; 649 650 num_of_data_points = ext_backlight_caps->num_data_points; 651 652 /* Validation rules: 653 * 1. BIOS should carry customized data points and 654 * the number of data points should not be larger than 99. 655 * 2. The max_input_signal should be larger than min_input_signal. 656 * 3. For each data point: 657 * a. luminance should be in ascending order and 658 * should not be 0 or 100 since the corresponding signal_level 659 * are assigned by min_input_signal and max_input_signal. 660 * b. signal_level should be in ascending order and 661 * be within the range of min/max_input_signal. 662 */ 663 if (num_of_data_points > BL_DATA_POINTS) 664 return false; 665 666 if (ext_backlight_caps->min_input_signal >= ext_backlight_caps->max_input_signal) 667 return false; 668 669 last_signal_level = ext_backlight_caps->min_input_signal; 670 for (i = 0; i < num_of_data_points; i++) { 671 unsigned int luminance = ext_backlight_caps->data_points[i].luminance; 672 unsigned int signal_level = ext_backlight_caps->data_points[i].signal_level; 673 674 if ((luminance <= last_luminance) || (luminance > BL_DATA_POINTS)) 675 return false; 676 677 if ((signal_level <= last_signal_level) || (signal_level >= ext_backlight_caps->max_input_signal)) 678 return false; 679 680 last_signal_level = signal_level; 681 last_luminance = luminance; 682 } 683 684 return true; 685 } 686 687 /* hard coded to default backlight curve. */ 688 void initialize_backlight_caps(struct core_power *core_power, unsigned int inst) 689 { 690 unsigned int i; 691 struct dm_acpi_atif_backlight_caps *ext_backlight_caps = NULL; 692 bool custom_curve_present = false; 693 unsigned int num_levels = 0; 694 struct dc *dc = NULL; 695 enum dm_acpi_display_type acpi_display_type = 696 (inst == 0) ? AcpiDisplayType_LCD1 : AcpiDisplayType_LCD2; 697 698 if (core_power == NULL) 699 return; 700 dc = core_power->dc; 701 702 num_levels = core_power->bl_prop[inst].num_backlight_levels; 703 704 /* Allocate memory for ATIF output 705 * (do not want to use 256 bytes on the stack) 706 */ 707 ext_backlight_caps = (struct dm_acpi_atif_backlight_caps *) 708 (kzalloc_obj(struct dm_acpi_atif_backlight_caps)); 709 710 if (ext_backlight_caps == NULL) 711 return; 712 713 /* Retrieve ACPI extended brightness caps */ 714 if (dm_query_extended_brightness_caps 715 (dc->ctx, acpi_display_type, ext_backlight_caps)) { 716 custom_curve_present = validate_ext_backlight_caps(ext_backlight_caps); 717 } 718 719 if (core_power->bl_prop[inst].use_custom_backlight_caps && 720 fill_custom_backlight_caps( 721 core_power->bl_prop[inst].custom_backlight_caps_config_no, 722 ext_backlight_caps)) { 723 custom_curve_present = validate_ext_backlight_caps(ext_backlight_caps); 724 } 725 726 if (custom_curve_present) { 727 unsigned int index = 1; 728 unsigned int num_of_data_points = ext_backlight_caps->num_data_points; 729 730 core_power->bl_prop[inst].ac_backlight_percent = 731 ext_backlight_caps->ac_level_percentage; 732 core_power->bl_prop[inst].dc_backlight_percent = 733 ext_backlight_caps->dc_level_percentage; 734 core_power->bl_prop[inst].backlight_lut[0] = 735 backlight_8_to_16( 736 ext_backlight_caps->min_input_signal); 737 core_power->bl_prop[inst].backlight_lut[num_levels - 1] = 738 backlight_8_to_16( 739 ext_backlight_caps->max_input_signal); 740 741 /* Filling translation table from data points - 742 * between every two provided data points we 743 * lineary interpolate missing values 744 */ 745 for (i = 0; i < num_of_data_points; i++) { 746 unsigned int luminance = 747 ext_backlight_caps->data_points[i].luminance; 748 unsigned int signal_level = 749 backlight_8_to_16( 750 ext_backlight_caps->data_points[i].signal_level); 751 752 /* Since luminance is a percentage, scale it by num_levels*/ 753 luminance = (luminance * num_levels) / 101; 754 755 /* Lineary interpolate missing values */ 756 if (index < luminance) { 757 unsigned int base_value = 758 core_power->bl_prop[inst].backlight_lut[index-1]; 759 unsigned int delta_signal = 760 signal_level - base_value; 761 unsigned int delta_luma = 762 luminance - index + 1; 763 unsigned int step = delta_signal; 764 765 for (; index < luminance; index++) { 766 core_power->bl_prop[inst].backlight_lut[index] = 767 base_value + (step / delta_luma); 768 step += delta_signal; 769 } 770 } 771 772 /* Now [index == luminance], 773 * so we can add data point to the translation table 774 */ 775 core_power->bl_prop[inst].backlight_lut[index++] = signal_level; 776 } 777 778 /* Complete the final segment of interpolation - 779 * between last datapoint and maximum value 780 */ 781 if (index < num_levels - 1) { 782 unsigned int base_value = 783 core_power->bl_prop[inst].backlight_lut[index-1]; 784 unsigned int delta_signal = 785 core_power->bl_prop[inst].backlight_lut[num_levels - 1] - 786 base_value; 787 unsigned int delta_luma = num_levels - index; 788 unsigned int step = delta_signal; 789 790 for (; index < num_levels - 1; index++) { 791 core_power->bl_prop[inst].backlight_lut[index] = 792 base_value + (step / delta_luma); 793 step += delta_signal; 794 } 795 } 796 /* Build backlight translation table based on default curve */ 797 } else { 798 /* Defines default backlight curve F(x) = A(x*x) + Bx + C. 799 * 800 * Backlight curve should always satisfy: 801 * F(0) = min, F(100) = max, 802 * So polynom coefficients are: 803 * A is 0.0255 - B/100 - min/10000 - (255-max)/10000 = 804 * (max - min)/10000 - B/100 805 * B is adjustable factor to modify the curve. 806 * Bigger B results in less concave curve. 807 * B range is [0..(max-min)/100] 808 * C is backlight minimum 809 */ 810 unsigned int backlight_curve_coeff_a_factor = 811 num_levels * num_levels; 812 unsigned int backlight_curve_coeff_b = num_levels; 813 unsigned int delta = 814 core_power->bl_prop[inst].backlight_lut[num_levels - 1] - 815 core_power->bl_prop[inst].backlight_lut[0]; 816 unsigned int coeffC = core_power->bl_prop[inst].backlight_lut[0]; 817 unsigned int coeffB = 818 (backlight_curve_coeff_b < delta ? 819 backlight_curve_coeff_b : delta); 820 unsigned long long coeffA = delta - coeffB; /* coeffB is B*100 */ 821 822 for (i = 1; i < num_levels - 1; i++) { 823 uint64_t lut_val = div_u64(coeffA * i * i, backlight_curve_coeff_a_factor) + 824 div_u64((uint64_t)coeffB * i, backlight_curve_coeff_b) + coeffC; 825 826 ASSERT(lut_val <= 0xFFFFFFFF); 827 core_power->bl_prop[inst].backlight_lut[i] = (unsigned int)lut_val; 828 } 829 } 830 831 if (ext_backlight_caps != NULL) 832 kfree(ext_backlight_caps); 833 834 /* Successfully initialized */ 835 core_power->bl_prop[inst].backlight_caps_valid = true; 836 } 837 838 static void varibright_set_level(struct core_power *core_power) 839 { 840 if (!core_power->varibright_prop.varibright_active || 841 !core_power->varibright_prop.varibright_user_enable) 842 core_power->varibright_prop.varibright_hw_level = 0; 843 else 844 core_power->varibright_prop.varibright_hw_level = 845 core_power->varibright_prop.varibright_level; 846 } 847 848 bool mod_power_hw_init_backlight(struct mod_power *mod_power) 849 { 850 struct core_power *core_power = NULL; 851 struct dc *dc = NULL; 852 struct dmcu *dmcu = NULL; 853 struct dmcu_iram_parameters params; 854 unsigned int i; 855 856 if (mod_power == NULL) 857 return false; 858 859 core_power = MOD_POWER_TO_CORE(mod_power); 860 dc = core_power->dc; 861 862 for (i = 0; i < core_power->edp_num; i++) { 863 params.set = core_power->varibright_prop.varibright_config_setting; 864 params.backlight_ramping_override = core_power->bl_prop[i].backlight_ramping_override; 865 params.backlight_ramping_reduction = core_power->bl_prop[i].backlight_ramping_reduction; 866 params.backlight_ramping_start = core_power->bl_prop[i].backlight_ramping_start; 867 params.backlight_lut_array = core_power->bl_prop[i].backlight_lut; 868 params.backlight_lut_array_size = core_power->bl_prop[i].num_backlight_levels; 869 params.min_abm_backlight = core_power->bl_prop[i].min_abm_backlight; 870 871 dmcu = dc->res_pool->dmcu; 872 873 // In the case where abm is implemented on dmcub, 874 // dmcu object will be null. 875 // ABM 2.4 and up are implemented on dmcub. 876 if (dmcu) { 877 //DMCU does not support multiple eDP 878 return dmcu_load_iram(dmcu, params); 879 } else if (dc->ctx->dmub_srv) { 880 if (!dmub_init_abm_config(dc->res_pool, params, i)) 881 return false; 882 } else 883 return false; 884 } 885 return true; 886 } 887 888 void mod_power_update_backlight_on_mode_change( 889 struct core_power *core_power, 890 struct dc_link *link, 891 unsigned int panel_inst, 892 uint8_t aux_inst, 893 bool is_hdr) 894 { 895 struct set_backlight_level_params backlight_level_params = { 0 }; 896 897 /* Cache the panel's backlight control type once at mode-change/init 898 * time. It is a stable per-panel property (decided in the OS shim 899 * from panel type + DPCD caps), so the brightness translation 900 * helpers can read it without it being passed on every call. 901 */ 902 mod_power_set_backlight_control_type(core_power, panel_inst, 903 link->backlight_control_type); 904 905 if ((link->dpcd_sink_ext_caps.bits.hdr_aux_backlight_control == 1 || 906 link->dpcd_sink_ext_caps.bits.sdr_aux_backlight_control == 1) && 907 link->backlight_control_type == BACKLIGHT_CONTROL_AMD_AUX) 908 dc_link_set_backlight_level_nits(link, core_power->bl_state[panel_inst].isHDR, 909 core_power->bl_state[panel_inst].backlight_millinit, 0); 910 911 backlight_level_params.frame_ramp = 0; 912 913 fill_backlight_level_params(core_power, &backlight_level_params, panel_inst, aux_inst, 914 core_power->bl_state[panel_inst].backlight_pwm, link->backlight_control_type, 915 core_power->bl_state[panel_inst].backlight_millinit, 0, is_hdr); 916 917 dc_link_set_backlight_level(link, &backlight_level_params); 918 } 919 920 static bool set_backlight_millinits_aux(struct core_power *core_power, 921 struct dc_stream_state *stream, 922 unsigned int backlight_millinits, 923 unsigned int transition_time_millisec, 924 unsigned int inst) 925 { 926 struct dc_link *link = NULL; 927 928 if (core_power == NULL) 929 return false; 930 931 if (stream == NULL) 932 return true; 933 934 link = dc_stream_get_link(stream); 935 936 // only use internal backlight control if dmub capabilities are not present 937 if (link->backlight_control_type == BACKLIGHT_CONTROL_VESA_AUX && 938 link->dc->caps.dmub_caps.aux_backlight_support) 939 return true; 940 941 return dc_link_set_backlight_level_nits(link, core_power->bl_state[inst].isHDR, 942 backlight_millinits, transition_time_millisec); 943 } 944 945 static bool set_backlight(struct core_power *core_power, 946 struct dc_stream_state *stream, 947 struct set_backlight_level_params *backlight_level_params, 948 unsigned int inst) 949 { 950 bool retv = false; 951 unsigned int frame_ramp = 0; 952 unsigned int vsync_rate_hz; 953 union dmcu_abm_set_bl_params params; 954 const struct dc_link *link = NULL; 955 unsigned int backlight_pwm_u16_16 = backlight_level_params->backlight_pwm_u16_16; 956 unsigned int transition_time_millisec = backlight_level_params->transition_time_in_ms; 957 958 if (core_power == NULL) 959 return false; 960 961 core_power->bl_state[inst].backlight_pwm = backlight_pwm_u16_16; 962 963 if (stream == NULL) 964 return true; 965 966 if (stream->link->connector_signal != SIGNAL_TYPE_EDP) 967 return false; 968 969 if (transition_time_millisec != 0) { 970 unsigned int v_total = 971 (stream->adjust.v_total_max == 0) ? stream->timing.v_total : stream->adjust.v_total_max; 972 973 vsync_rate_hz = (unsigned int)div_u64(div_u64((stream-> 974 timing.pix_clk_100hz * 100), 975 v_total), 976 stream->timing.h_total); 977 978 if (core_power->bl_state[inst].smooth_brightness_enabled) 979 frame_ramp = ((vsync_rate_hz * 980 transition_time_millisec) + 500) / 1000; 981 } 982 983 core_power->bl_state[inst].frame_ramp = frame_ramp; 984 params.u32All = 0; 985 params.bits.gradual_change = (frame_ramp > 0); 986 params.bits.frame_ramp = frame_ramp; 987 link = dc_stream_get_link(stream); 988 989 mod_power_set_psr_event(&core_power->mod_public, stream, true, psr_event_hw_programming, true); 990 mod_power_set_replay_event(&core_power->mod_public, stream, true, replay_event_hw_programming, true); 991 992 backlight_level_params->frame_ramp = params.u32All; 993 retv = dc_link_set_backlight_level(link, backlight_level_params); 994 995 mod_power_set_psr_event(&core_power->mod_public, stream, false, psr_event_hw_programming, false); 996 mod_power_set_replay_event(&core_power->mod_public, stream, false, replay_event_hw_programming, false); 997 998 return retv; 999 } 1000 1001 void fill_backlight_level_params(struct core_power *core_power, 1002 struct set_backlight_level_params *backlight_level_params, 1003 int panel_inst, uint8_t aux_inst, unsigned int backlight_pwm, 1004 enum backlight_control_type backlight_control_type, 1005 unsigned int backlight_millinit, unsigned int transition_time_millisec, 1006 bool is_hdr) 1007 { 1008 struct pwr_backlight_properties *bl_prop = &core_power->bl_prop[panel_inst]; 1009 1010 backlight_level_params->aux_inst = aux_inst; 1011 backlight_level_params->backlight_pwm_u16_16 = backlight_pwm; 1012 backlight_level_params->control_type = backlight_control_type; 1013 backlight_level_params->backlight_millinits = backlight_millinit; 1014 backlight_level_params->transition_time_in_ms = transition_time_millisec; 1015 backlight_level_params->min_luminance = bl_prop->min_brightness_millinits; 1016 backlight_level_params->max_luminance = bl_prop->max_brightness_millinits; 1017 backlight_level_params->min_backlight_pwm = bl_prop->min_backlight_pwm; 1018 backlight_level_params->max_backlight_pwm = bl_prop->max_backlight_pwm; 1019 1020 if (backlight_control_type == BACKLIGHT_CONTROL_AMD_AUX && !is_hdr) 1021 backlight_level_params->control_type = BACKLIGHT_CONTROL_PWM; 1022 } 1023 1024 bool mod_power_set_backlight_nits(struct mod_power *mod_power, 1025 struct dc_stream_state *stream, 1026 unsigned int backlight_millinit, 1027 unsigned int transition_time_millisec, 1028 bool skip_aux, 1029 bool is_hdr) 1030 { 1031 struct core_power *core_power = NULL; 1032 unsigned int backlight_pwm; 1033 unsigned int panel_inst = 0; 1034 struct set_backlight_level_params backlight_level_params = { 0 }; 1035 const struct dc_link *link = NULL; 1036 uint8_t aux_inst = 0; 1037 1038 if (mod_power == NULL) 1039 return false; 1040 1041 core_power = MOD_POWER_TO_CORE(mod_power); 1042 link = dc_stream_get_link(stream); 1043 1044 aux_inst = link->dc->link_srv->get_ddc_aux_inst(link); 1045 1046 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &panel_inst)) 1047 return false; 1048 1049 if (!skip_aux) { 1050 if (!set_backlight_millinits_aux(core_power, stream, 1051 backlight_millinit, transition_time_millisec, panel_inst)) 1052 return false; 1053 } 1054 // always send both AUX (above) and PWM (below) 1055 core_power->bl_state[panel_inst].backlight_millinit = backlight_millinit; 1056 1057 core_power->bl_state[panel_inst].backlight_millipercent = 1058 backlight_millinit_to_millipercent( 1059 core_power, backlight_millinit, panel_inst); 1060 1061 backlight_pwm = backlight_millinit_to_pwm( 1062 core_power, backlight_millinit, panel_inst); 1063 1064 fill_backlight_level_params(core_power, &backlight_level_params, panel_inst, aux_inst, backlight_pwm, 1065 link->backlight_control_type, backlight_millinit, transition_time_millisec, is_hdr); 1066 1067 return set_backlight(core_power, stream, 1068 &backlight_level_params, panel_inst); 1069 } 1070 1071 bool mod_power_backlight_percent_to_nits(struct mod_power *mod_power, 1072 struct dc_stream_state *stream, 1073 unsigned int backlight_millipercent, 1074 unsigned int *backlight_millinit) 1075 { 1076 struct core_power *core_power = NULL; 1077 unsigned int inst = 0; 1078 1079 if (mod_power == NULL) 1080 return false; 1081 1082 core_power = MOD_POWER_TO_CORE(mod_power); 1083 1084 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &inst)) 1085 return false; 1086 1087 *backlight_millinit = backlight_millipercent_to_millinit( 1088 core_power, backlight_millipercent, inst); 1089 return true; 1090 } 1091 1092 bool mod_power_backlight_nits_to_percent(struct mod_power *mod_power, 1093 struct dc_stream_state *stream, 1094 unsigned int backlight_millinit, 1095 unsigned int *backlight_millipercent) 1096 { 1097 struct core_power *core_power = NULL; 1098 unsigned int inst = 0; 1099 1100 if (mod_power == NULL) 1101 return false; 1102 1103 core_power = MOD_POWER_TO_CORE(mod_power); 1104 1105 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &inst)) 1106 return false; 1107 1108 *backlight_millipercent = backlight_millinit_to_millipercent( 1109 core_power, backlight_millinit, inst); 1110 return true; 1111 } 1112 1113 bool mod_power_set_backlight_percent(struct mod_power *mod_power, 1114 struct dc_stream_state *stream, 1115 unsigned int backlight_millipercent, 1116 unsigned int transition_time_millisec, 1117 bool is_hdr) 1118 { 1119 struct core_power *core_power = NULL; 1120 struct set_backlight_level_params backlight_level_params = { 0 }; 1121 const struct dc_link *link = NULL; 1122 unsigned int backlight_pwm; 1123 unsigned int panel_inst = 0; 1124 uint8_t aux_inst = 0; 1125 1126 if (mod_power == NULL) 1127 return false; 1128 1129 core_power = MOD_POWER_TO_CORE(mod_power); 1130 link = dc_stream_get_link(stream); 1131 aux_inst = link->dc->link_srv->get_ddc_aux_inst(link); 1132 1133 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &panel_inst)) 1134 return false; 1135 core_power->bl_state[panel_inst].backlight_millipercent = backlight_millipercent; 1136 1137 core_power->bl_state[panel_inst].backlight_millinit = 1138 backlight_millipercent_to_millinit( 1139 core_power, backlight_millipercent, panel_inst); 1140 1141 backlight_pwm = backlight_millipercent_to_pwm( 1142 core_power, backlight_millipercent, panel_inst); 1143 1144 fill_backlight_level_params(core_power, &backlight_level_params, panel_inst, 1145 aux_inst, backlight_pwm, link->backlight_control_type, 1146 core_power->bl_state[panel_inst].backlight_millinit, transition_time_millisec, is_hdr); 1147 1148 return set_backlight(core_power, stream, 1149 &backlight_level_params, panel_inst); 1150 } 1151 1152 void mod_power_update_backlight(struct mod_power *mod_power, 1153 struct dc_stream_state *stream, 1154 unsigned int backlight_millipercent) 1155 { 1156 struct core_power *core_power = NULL; 1157 unsigned int inst = 0; 1158 1159 if (mod_power == NULL) 1160 return; 1161 1162 core_power = MOD_POWER_TO_CORE(mod_power); 1163 1164 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &inst)) 1165 return; 1166 core_power->bl_state[inst].backlight_millipercent = backlight_millipercent; 1167 1168 core_power->bl_state[inst].backlight_millinit = 1169 backlight_millipercent_to_millinit( 1170 core_power, backlight_millipercent, inst); 1171 1172 core_power->bl_state[inst].backlight_pwm = backlight_millipercent_to_pwm( 1173 core_power, backlight_millipercent, inst); 1174 } 1175 1176 void mod_power_update_backlight_nits(struct mod_power *mod_power, 1177 struct dc_stream_state *stream, 1178 unsigned int backlight_millinit) 1179 { 1180 struct core_power *core_power = NULL; 1181 unsigned int inst = 0; 1182 1183 if (mod_power == NULL) 1184 return; 1185 1186 core_power = MOD_POWER_TO_CORE(mod_power); 1187 1188 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &inst)) 1189 return; 1190 1191 core_power->bl_state[inst].backlight_millinit = backlight_millinit; 1192 1193 core_power->bl_state[inst].backlight_millipercent = backlight_millinit_to_millipercent( 1194 core_power, backlight_millinit, inst); 1195 core_power->bl_state[inst].backlight_pwm = backlight_millinit_to_pwm( 1196 core_power, backlight_millinit, inst); 1197 } 1198 1199 bool mod_power_get_backlight_pwm(struct mod_power *mod_power, 1200 unsigned int *backlight_pwm, 1201 unsigned int inst) 1202 { 1203 struct core_power *core_power = NULL; 1204 1205 if (mod_power == NULL) 1206 return false; 1207 1208 core_power = MOD_POWER_TO_CORE(mod_power); 1209 1210 *backlight_pwm = core_power->bl_state[inst].backlight_pwm; 1211 1212 return true; 1213 } 1214 1215 bool mod_power_get_backlight_nits(struct mod_power *mod_power, 1216 unsigned int *backlight_millinit, 1217 unsigned int inst) 1218 { 1219 struct core_power *core_power = NULL; 1220 1221 if (mod_power == NULL) 1222 return false; 1223 1224 core_power = MOD_POWER_TO_CORE(mod_power); 1225 1226 *backlight_millinit = core_power->bl_state[inst].backlight_millinit; 1227 1228 return true; 1229 } 1230 1231 bool mod_power_get_backlight_percent(struct mod_power *mod_power, 1232 unsigned int *backlight_millipercent, 1233 unsigned int inst) 1234 { 1235 struct core_power *core_power = NULL; 1236 1237 if (mod_power == NULL) 1238 return false; 1239 1240 core_power = MOD_POWER_TO_CORE(mod_power); 1241 1242 *backlight_millipercent = core_power->bl_state[inst].backlight_millipercent; 1243 1244 return true; 1245 } 1246 1247 bool mod_power_get_hw_target_backlight_pwm_nits(struct mod_power *mod_power, 1248 const struct dc_link *link, 1249 unsigned int *backlight_millinit, 1250 unsigned int inst) 1251 { 1252 struct core_power *core_power = NULL; 1253 unsigned int backlight_u16_16 = 0; 1254 1255 if (mod_power == NULL) 1256 return false; 1257 1258 core_power = MOD_POWER_TO_CORE(mod_power); 1259 1260 if (mod_power_get_hw_target_backlight_pwm(mod_power, link, 1261 &backlight_u16_16)) { 1262 *backlight_millinit = 1263 backlight_pwm_to_millinit(core_power, 1264 backlight_u16_16, inst); 1265 return true; 1266 } 1267 return false; 1268 } 1269 1270 bool mod_power_get_hw_target_backlight_pwm_percent(struct mod_power *mod_power, 1271 const struct dc_link *link, 1272 unsigned int *backlight_millipercent, 1273 unsigned int inst) 1274 { 1275 struct core_power *core_power = NULL; 1276 unsigned int backlight_u16_16 = 0; 1277 1278 if (mod_power == NULL) 1279 return false; 1280 1281 core_power = MOD_POWER_TO_CORE(mod_power); 1282 1283 if (mod_power_get_hw_target_backlight_pwm(mod_power, link, 1284 &backlight_u16_16)) { 1285 *backlight_millipercent = 1286 backlight_pwm_to_millipercent(core_power, 1287 backlight_u16_16, inst); 1288 return true; 1289 } 1290 return false; 1291 } 1292 1293 bool mod_power_get_hw_target_backlight_pwm(struct mod_power *mod_power, 1294 const struct dc_link *link, 1295 unsigned int *backlight_u16_16) 1296 { 1297 if (mod_power == NULL) 1298 return false; 1299 1300 *backlight_u16_16 = dc_link_get_target_backlight_pwm(link); 1301 1302 return true; 1303 } 1304 1305 bool mod_power_get_hw_backlight_pwm_nits(struct mod_power *mod_power, 1306 const struct dc_link *link, 1307 unsigned int *backlight_millinit, 1308 unsigned int inst) 1309 { 1310 struct core_power *core_power = NULL; 1311 unsigned int backlight_u16_16 = 0; 1312 1313 if (mod_power == NULL) 1314 return false; 1315 1316 core_power = MOD_POWER_TO_CORE(mod_power); 1317 1318 if (mod_power_get_hw_backlight_pwm(mod_power, link, &backlight_u16_16)) { 1319 *backlight_millinit = 1320 backlight_pwm_to_millinit(core_power, 1321 backlight_u16_16, inst); 1322 return true; 1323 } 1324 return false; 1325 } 1326 1327 bool mod_power_get_hw_backlight_aux_nits(struct mod_power *mod_power, 1328 struct dc_stream_state **streams, int num_streams, 1329 unsigned int *backlight_millinit_avg, 1330 unsigned int *backlight_millinit_peak) 1331 { 1332 struct core_power *core_power = NULL; 1333 struct dc_link *link = NULL; 1334 int stream_index; 1335 1336 if (mod_power == NULL) 1337 return false; 1338 1339 core_power = MOD_POWER_TO_CORE(mod_power); 1340 1341 if (core_power == NULL) 1342 return false; 1343 1344 if (num_streams < 1) 1345 return true; 1346 1347 for (stream_index = 0; stream_index < num_streams; stream_index++) 1348 if (streams[stream_index]->link->connector_signal == SIGNAL_TYPE_EDP || 1349 streams[stream_index]->link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT) 1350 break; 1351 1352 if (stream_index == num_streams) 1353 return false; 1354 1355 link = dc_stream_get_link(streams[stream_index]); 1356 if (link->dpcd_sink_ext_caps.bits.hdr_aux_backlight_control == 0) 1357 return false; 1358 1359 return dc_link_get_backlight_level_nits(link, backlight_millinit_avg, 1360 backlight_millinit_peak); 1361 } 1362 1363 bool mod_power_get_hw_backlight_pwm_percent(struct mod_power *mod_power, 1364 const struct dc_link *link, 1365 unsigned int *backlight_millipercent, 1366 unsigned int inst) 1367 { 1368 struct core_power *core_power = NULL; 1369 unsigned int backlight_u16_16 = 0; 1370 1371 if (mod_power == NULL) 1372 return false; 1373 1374 core_power = MOD_POWER_TO_CORE(mod_power); 1375 1376 if (mod_power_get_hw_backlight_pwm(mod_power, link, &backlight_u16_16)) { 1377 *backlight_millipercent = 1378 backlight_pwm_to_millipercent(core_power, 1379 backlight_u16_16, inst); 1380 return true; 1381 } 1382 return false; 1383 } 1384 1385 bool mod_power_get_hw_backlight_pwm(struct mod_power *mod_power, 1386 const struct dc_link *link, 1387 unsigned int *backlight_u16_16) 1388 { 1389 if (mod_power == NULL) 1390 return false; 1391 1392 *backlight_u16_16 = dc_link_get_backlight_level(link); 1393 1394 return true; 1395 } 1396 1397 bool mod_power_get_panel_backlight_boundaries( 1398 struct mod_power *mod_power, 1399 unsigned int *out_min_backlight, 1400 unsigned int *out_max_backlight, 1401 unsigned int *out_ac_backlight_percent, 1402 unsigned int *out_dc_backlight_percent, 1403 unsigned int inst) 1404 { 1405 struct core_power *core_power = NULL; 1406 1407 if (mod_power == NULL) 1408 return false; 1409 1410 core_power = MOD_POWER_TO_CORE(mod_power); 1411 1412 /* If cache was successfully updated, 1413 * copy the values to output structure and return success 1414 */ 1415 if (core_power->bl_prop[inst].backlight_caps_valid) { 1416 *out_min_backlight = core_power->bl_prop[inst].backlight_lut[0]; 1417 *out_max_backlight = 1418 core_power->bl_prop[inst].backlight_lut[ 1419 core_power->bl_prop[inst].num_backlight_levels - 1]; 1420 *out_ac_backlight_percent = 1421 core_power->bl_prop[inst].ac_backlight_percent; 1422 *out_dc_backlight_percent = 1423 core_power->bl_prop[inst].dc_backlight_percent; 1424 1425 return true; 1426 } 1427 1428 return false; 1429 } 1430 1431 bool mod_power_set_smooth_brightness(struct mod_power *mod_power, 1432 bool enable_brightness, 1433 unsigned int inst) 1434 { 1435 struct core_power *core_power = NULL; 1436 1437 if (mod_power == NULL) 1438 return false; 1439 1440 core_power = MOD_POWER_TO_CORE(mod_power); 1441 1442 core_power->bl_state[inst].smooth_brightness_enabled = enable_brightness; 1443 1444 return true; 1445 } 1446 1447 bool mod_power_varibright_feature_enable(struct mod_power *mod_power, bool enable, 1448 struct dc_stream_update *stream_update) 1449 { 1450 struct core_power *core_power = NULL; 1451 1452 if (mod_power == NULL) 1453 return false; 1454 1455 core_power = MOD_POWER_TO_CORE(mod_power); 1456 core_power->varibright_prop.varibright_user_enable = enable; 1457 1458 /* find abm hw level to program, and save in stream update */ 1459 varibright_set_level(core_power); 1460 *stream_update->abm_level = core_power->varibright_prop.varibright_hw_level; 1461 1462 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1463 WPP_BIT_FLAG_Backlight_ABM, 1464 ">ABM feature enable: enable=%u su->varibright_level=%u varibright_hw_level=%u", 1465 (unsigned int) enable, 1466 *stream_update->abm_level, 1467 core_power->varibright_prop.varibright_hw_level); 1468 return true; 1469 } 1470 1471 bool mod_power_varibright_activate(struct mod_power *mod_power, 1472 bool activate, 1473 struct dc_stream_update *stream_update) 1474 { 1475 struct core_power *core_power = NULL; 1476 1477 if (mod_power == NULL) 1478 return false; 1479 1480 core_power = MOD_POWER_TO_CORE(mod_power); 1481 core_power->varibright_prop.varibright_active = activate; 1482 1483 /* find abm hw level to program, and save in stream update */ 1484 varibright_set_level(core_power); 1485 *stream_update->abm_level = core_power->varibright_prop.varibright_hw_level; 1486 1487 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1488 WPP_BIT_FLAG_Backlight_ABM, 1489 ">ABM activate: activate=%u su->varibright_level=%u", 1490 (unsigned int) activate, 1491 *stream_update->abm_level); 1492 return true; 1493 } 1494 bool mod_power_varibright_set_level(struct mod_power *mod_power, unsigned int level, 1495 struct dc_stream_update *stream_update) 1496 { 1497 struct core_power *core_power = NULL; 1498 1499 if (mod_power == NULL) 1500 return false; 1501 1502 core_power = MOD_POWER_TO_CORE(mod_power); 1503 core_power->varibright_prop.varibright_level = level; 1504 core_power->varibright_prop.varibright_hw_level = level; 1505 1506 /* find abm hw level to program, and save in stream update */ 1507 varibright_set_level(core_power); 1508 *stream_update->abm_level = core_power->varibright_prop.varibright_hw_level; 1509 1510 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1511 WPP_BIT_FLAG_Backlight_ABM, 1512 ">ABM set level: level=%u -> (varibright_level=%u varibright_hw_level=%u) -> su->varibright_level=%u", 1513 level, 1514 core_power->varibright_prop.varibright_level, 1515 core_power->varibright_prop.varibright_hw_level, 1516 *stream_update->abm_level); 1517 return true; 1518 } 1519 1520 bool mod_power_varibright_set_hw_level(struct mod_power *mod_power, unsigned int level, 1521 struct dc_stream_update *stream_update) 1522 { 1523 struct core_power *core_power = NULL; 1524 1525 if (mod_power == NULL) 1526 return false; 1527 1528 core_power = MOD_POWER_TO_CORE(mod_power); 1529 1530 if (level == 0 || level == ABM_LEVEL_IMMEDIATE_DISABLE) 1531 core_power->varibright_prop.varibright_active = 0; 1532 else 1533 core_power->varibright_prop.varibright_active = 1; 1534 core_power->varibright_prop.varibright_hw_level = level; 1535 *stream_update->abm_level = core_power->varibright_prop.varibright_hw_level; 1536 1537 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1538 WPP_BIT_FLAG_Backlight_ABM, 1539 ">ABM set level: level=%u -> (varibright_level=%u varibright_hw_level=%u) -> su->varibright_level=%u", 1540 level, 1541 core_power->varibright_prop.varibright_level, 1542 core_power->varibright_prop.varibright_hw_level, 1543 *stream_update->abm_level); 1544 return true; 1545 } 1546 1547 bool mod_power_get_varibright_level(struct mod_power *mod_power, 1548 unsigned int *varibright_level) 1549 { 1550 struct core_power *core_power = NULL; 1551 1552 if (mod_power == NULL) 1553 return false; 1554 1555 core_power = MOD_POWER_TO_CORE(mod_power); 1556 1557 *varibright_level = core_power->varibright_prop.varibright_level; 1558 1559 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1560 WPP_BIT_FLAG_Backlight_ABM, 1561 ">get varibright level: cp->varibright_level=%u", 1562 *varibright_level); 1563 return true; 1564 1565 } 1566 1567 bool mod_power_get_varibright_hw_level(struct mod_power *mod_power, 1568 unsigned int *varibright_level) 1569 { 1570 struct core_power *core_power = NULL; 1571 1572 if (mod_power == NULL) 1573 return false; 1574 1575 core_power = MOD_POWER_TO_CORE(mod_power); 1576 1577 *varibright_level = core_power->varibright_prop.varibright_hw_level; 1578 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1579 WPP_BIT_FLAG_Backlight_ABM, 1580 ">get varibright HW level: hw_level=%u", 1581 *varibright_level); 1582 return true; 1583 } 1584 1585 bool mod_power_get_varibright_default_level(struct mod_power *mod_power, 1586 unsigned int *varibright_level) 1587 { 1588 struct core_power *core_power = NULL; 1589 1590 if (mod_power == NULL) 1591 return false; 1592 1593 core_power = MOD_POWER_TO_CORE(mod_power); 1594 1595 *varibright_level = core_power->varibright_prop.def_varibright_level; 1596 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1597 WPP_BIT_FLAG_Backlight_ABM, 1598 ">get varibright default level: def_varibright_level=%u", 1599 *varibright_level); 1600 return true; 1601 } 1602 1603 bool mod_power_get_varibright_enable(struct mod_power *mod_power, 1604 bool *varibright_enable) 1605 { 1606 struct core_power *core_power = NULL; 1607 1608 if (mod_power == NULL) 1609 return false; 1610 1611 core_power = MOD_POWER_TO_CORE(mod_power); 1612 1613 *varibright_enable = core_power->varibright_prop.varibright_user_enable; 1614 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1615 WPP_BIT_FLAG_Backlight_ABM, 1616 ">get varibright enable state: varibright_user_enable=%u", 1617 (unsigned int) (*varibright_enable)); 1618 return true; 1619 } 1620 1621 bool mod_power_is_abm_active(struct mod_power *mod_power, 1622 const struct dc_link *link, 1623 unsigned int inst) 1624 { 1625 unsigned int user_backlight = 0; 1626 unsigned int current_backlight = 0; 1627 bool is_active = false; 1628 1629 if (mod_power == NULL) 1630 return false; 1631 1632 mod_power_get_backlight_pwm(mod_power, &user_backlight, inst); 1633 mod_power_get_hw_backlight_pwm(mod_power, link, ¤t_backlight); 1634 1635 if (user_backlight != current_backlight) 1636 is_active = true; 1637 else 1638 is_active = false; 1639 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1640 WPP_BIT_FLAG_Backlight_ABM, 1641 ">get ABM active state: is_active=%u (user_backlight_pwm=%u, current_backlight_pwm=%u)", 1642 (unsigned int)is_active, 1643 user_backlight, 1644 current_backlight); 1645 return is_active; 1646 } 1647 1648 bool mod_power_is_abm_supported(struct mod_power *mod_power, 1649 unsigned int inst) 1650 { 1651 struct core_power *core_power = NULL; 1652 struct dc *dc = NULL; 1653 1654 if (mod_power == NULL) 1655 return false; 1656 1657 core_power = MOD_POWER_TO_CORE(mod_power); 1658 dc = core_power->dc; 1659 1660 // It's only implemented on dmcub. 1661 if (dc->ctx->dmub_srv) { 1662 if (!dmub_is_abm_supported(dc->res_pool, inst)) 1663 return false; 1664 } else 1665 return false; 1666 1667 return true; 1668 } 1669 1670 bool mod_power_abm_set_event(struct mod_power *mod_power, 1671 unsigned int full_screen, unsigned int trans_info, 1672 unsigned int hdr_mode, unsigned int scaling_enable, 1673 unsigned int scaling_strength_map, unsigned int inst) 1674 { 1675 struct core_power *core_power = NULL; 1676 struct dc *dc = NULL; 1677 1678 if (mod_power == NULL) 1679 return false; 1680 1681 core_power = MOD_POWER_TO_CORE(mod_power); 1682 dc = core_power->dc; 1683 1684 // It's only implemented on dmcub. 1685 if (dc->ctx->dmub_srv) { 1686 if (!dmub_set_abm_event(dc->res_pool, full_screen, trans_info, 1687 hdr_mode, scaling_enable, scaling_strength_map, inst)) 1688 return false; 1689 } else 1690 return false; 1691 1692 return true; 1693 } 1694 1695 bool mod_power_abm_set_strength(struct mod_power *mod_power, 1696 unsigned int strength, 1697 unsigned int inst) 1698 { 1699 struct core_power *core_power = NULL; 1700 struct dc *dc = NULL; 1701 1702 if (mod_power == NULL) 1703 return false; 1704 1705 core_power = MOD_POWER_TO_CORE(mod_power); 1706 dc = core_power->dc; 1707 1708 // It's only implemented on dmcub. 1709 if (dc->ctx->dmub_srv) { 1710 if (!dmub_set_abm_strength(dc->res_pool, strength, inst)) 1711 return false; 1712 } else 1713 return false; 1714 1715 return true; 1716 } 1717 1718 static void fill_backlight_transform_table(struct dmcu_iram_parameters params, 1719 struct iram_table_v_2 *table) 1720 { 1721 unsigned int i; 1722 unsigned int num_entries = NUM_BL_CURVE_SEGS; 1723 unsigned int lut_index; 1724 1725 table->backlight_thresholds[0] = 0; 1726 ASSERT(params.backlight_lut_array[0] <= 0xFFFF); 1727 table->backlight_offsets[0] = (uint16_t)params.backlight_lut_array[0]; 1728 table->backlight_thresholds[num_entries-1] = 0xFFFF; 1729 ASSERT(params.backlight_lut_array[params.backlight_lut_array_size - 1] <= 0xFFFF); 1730 table->backlight_offsets[num_entries-1] = 1731 (uint16_t)params.backlight_lut_array[params.backlight_lut_array_size - 1]; 1732 1733 /* Setup all brightness levels between 0% and 100% exclusive 1734 * Fills brightness-to-backlight transform table. Backlight custom curve 1735 * describes transform from brightness to backlight. It will be defined 1736 * as set of thresholds and set of offsets, together, implying 1737 * extrapolation of custom curve into 16 uniformly spanned linear 1738 * segments. Each threshold/offset represented by 16 bit entry in 1739 * format U4.10. 1740 */ 1741 for (i = 1; i+1 < num_entries; i++) { 1742 lut_index = (params.backlight_lut_array_size - 1) * i / (num_entries - 1); 1743 1744 ASSERT(lut_index < params.backlight_lut_array_size); 1745 1746 unsigned int threshold_val = DIV_ROUNDUP((i * 65536), num_entries); 1747 unsigned int offset_val = params.backlight_lut_array[lut_index]; 1748 1749 ASSERT(threshold_val <= 0xFFFF); 1750 ASSERT(offset_val <= 0xFFFF); 1751 1752 table->backlight_thresholds[i] = cpu_to_be16((uint16_t)threshold_val); 1753 table->backlight_offsets[i] = cpu_to_be16((uint16_t)offset_val); 1754 } 1755 } 1756 1757 static void fill_backlight_transform_table_v_2_2(struct dmcu_iram_parameters params, 1758 struct iram_table_v_2_2 *table, bool big_endian) 1759 { 1760 unsigned int i; 1761 unsigned int num_entries = NUM_BL_CURVE_SEGS; 1762 unsigned int lut_index; 1763 1764 table->backlight_thresholds[0] = 0; 1765 ASSERT(params.backlight_lut_array[0] <= 0xFFFF); 1766 table->backlight_offsets[0] = (uint16_t)params.backlight_lut_array[0]; 1767 table->backlight_thresholds[num_entries-1] = 0xFFFF; 1768 ASSERT(params.backlight_lut_array[params.backlight_lut_array_size - 1] <= 0xFFFF); 1769 table->backlight_offsets[num_entries-1] = 1770 (uint16_t)params.backlight_lut_array[params.backlight_lut_array_size - 1]; 1771 1772 /* Setup all brightness levels between 0% and 100% exclusive 1773 * Fills brightness-to-backlight transform table. Backlight custom curve 1774 * describes transform from brightness to backlight. It will be defined 1775 * as set of thresholds and set of offsets, together, implying 1776 * extrapolation of custom curve into 16 uniformly spanned linear 1777 * segments. Each threshold/offset represented by 16 bit entry in 1778 * format U4.10. 1779 */ 1780 for (i = 1; i+1 < num_entries; i++) { 1781 lut_index = DIV_ROUNDUP((i * params.backlight_lut_array_size), num_entries); 1782 ASSERT(lut_index < params.backlight_lut_array_size); 1783 1784 unsigned int threshold_val = DIV_ROUNDUP((i * 65536), num_entries); 1785 unsigned int offset_val = params.backlight_lut_array[lut_index]; 1786 1787 ASSERT(threshold_val <= 0xFFFF); 1788 ASSERT(offset_val <= 0xFFFF); 1789 1790 table->backlight_thresholds[i] = (big_endian) ? 1791 cpu_to_be16((uint16_t)threshold_val) : cpu_to_le16((uint16_t)threshold_val); 1792 table->backlight_offsets[i] = (big_endian) ? 1793 cpu_to_be16((uint16_t)offset_val) : cpu_to_le16((uint16_t)offset_val); 1794 } 1795 } 1796 1797 static void fill_iram_v_2(struct iram_table_v_2 *ram_table, struct dmcu_iram_parameters params) 1798 { 1799 unsigned int set = params.set; 1800 1801 ram_table->min_abm_backlight = 1802 cpu_to_be16(params.min_abm_backlight); 1803 ram_table->deviation_gain = 0xb3; 1804 1805 ram_table->blRampReduction = 1806 cpu_to_be16(params.backlight_ramping_reduction); 1807 ram_table->blRampStart = 1808 cpu_to_be16(params.backlight_ramping_start); 1809 1810 ram_table->min_reduction[0][0] = min_reduction_table[abm_config[set][0]]; 1811 ram_table->min_reduction[1][0] = min_reduction_table[abm_config[set][0]]; 1812 ram_table->min_reduction[2][0] = min_reduction_table[abm_config[set][0]]; 1813 ram_table->min_reduction[3][0] = min_reduction_table[abm_config[set][0]]; 1814 ram_table->min_reduction[4][0] = min_reduction_table[abm_config[set][0]]; 1815 ram_table->max_reduction[0][0] = max_reduction_table[abm_config[set][0]]; 1816 ram_table->max_reduction[1][0] = max_reduction_table[abm_config[set][0]]; 1817 ram_table->max_reduction[2][0] = max_reduction_table[abm_config[set][0]]; 1818 ram_table->max_reduction[3][0] = max_reduction_table[abm_config[set][0]]; 1819 ram_table->max_reduction[4][0] = max_reduction_table[abm_config[set][0]]; 1820 1821 ram_table->min_reduction[0][1] = min_reduction_table[abm_config[set][1]]; 1822 ram_table->min_reduction[1][1] = min_reduction_table[abm_config[set][1]]; 1823 ram_table->min_reduction[2][1] = min_reduction_table[abm_config[set][1]]; 1824 ram_table->min_reduction[3][1] = min_reduction_table[abm_config[set][1]]; 1825 ram_table->min_reduction[4][1] = min_reduction_table[abm_config[set][1]]; 1826 ram_table->max_reduction[0][1] = max_reduction_table[abm_config[set][1]]; 1827 ram_table->max_reduction[1][1] = max_reduction_table[abm_config[set][1]]; 1828 ram_table->max_reduction[2][1] = max_reduction_table[abm_config[set][1]]; 1829 ram_table->max_reduction[3][1] = max_reduction_table[abm_config[set][1]]; 1830 ram_table->max_reduction[4][1] = max_reduction_table[abm_config[set][1]]; 1831 1832 ram_table->min_reduction[0][2] = min_reduction_table[abm_config[set][2]]; 1833 ram_table->min_reduction[1][2] = min_reduction_table[abm_config[set][2]]; 1834 ram_table->min_reduction[2][2] = min_reduction_table[abm_config[set][2]]; 1835 ram_table->min_reduction[3][2] = min_reduction_table[abm_config[set][2]]; 1836 ram_table->min_reduction[4][2] = min_reduction_table[abm_config[set][2]]; 1837 ram_table->max_reduction[0][2] = max_reduction_table[abm_config[set][2]]; 1838 ram_table->max_reduction[1][2] = max_reduction_table[abm_config[set][2]]; 1839 ram_table->max_reduction[2][2] = max_reduction_table[abm_config[set][2]]; 1840 ram_table->max_reduction[3][2] = max_reduction_table[abm_config[set][2]]; 1841 ram_table->max_reduction[4][2] = max_reduction_table[abm_config[set][2]]; 1842 1843 ram_table->min_reduction[0][3] = min_reduction_table[abm_config[set][3]]; 1844 ram_table->min_reduction[1][3] = min_reduction_table[abm_config[set][3]]; 1845 ram_table->min_reduction[2][3] = min_reduction_table[abm_config[set][3]]; 1846 ram_table->min_reduction[3][3] = min_reduction_table[abm_config[set][3]]; 1847 ram_table->min_reduction[4][3] = min_reduction_table[abm_config[set][3]]; 1848 ram_table->max_reduction[0][3] = max_reduction_table[abm_config[set][3]]; 1849 ram_table->max_reduction[1][3] = max_reduction_table[abm_config[set][3]]; 1850 ram_table->max_reduction[2][3] = max_reduction_table[abm_config[set][3]]; 1851 ram_table->max_reduction[3][3] = max_reduction_table[abm_config[set][3]]; 1852 ram_table->max_reduction[4][3] = max_reduction_table[abm_config[set][3]]; 1853 1854 ram_table->bright_pos_gain[0][0] = 0x20; 1855 ram_table->bright_pos_gain[0][1] = 0x20; 1856 ram_table->bright_pos_gain[0][2] = 0x20; 1857 ram_table->bright_pos_gain[0][3] = 0x20; 1858 ram_table->bright_pos_gain[1][0] = 0x20; 1859 ram_table->bright_pos_gain[1][1] = 0x20; 1860 ram_table->bright_pos_gain[1][2] = 0x20; 1861 ram_table->bright_pos_gain[1][3] = 0x20; 1862 ram_table->bright_pos_gain[2][0] = 0x20; 1863 ram_table->bright_pos_gain[2][1] = 0x20; 1864 ram_table->bright_pos_gain[2][2] = 0x20; 1865 ram_table->bright_pos_gain[2][3] = 0x20; 1866 ram_table->bright_pos_gain[3][0] = 0x20; 1867 ram_table->bright_pos_gain[3][1] = 0x20; 1868 ram_table->bright_pos_gain[3][2] = 0x20; 1869 ram_table->bright_pos_gain[3][3] = 0x20; 1870 ram_table->bright_pos_gain[4][0] = 0x20; 1871 ram_table->bright_pos_gain[4][1] = 0x20; 1872 ram_table->bright_pos_gain[4][2] = 0x20; 1873 ram_table->bright_pos_gain[4][3] = 0x20; 1874 ram_table->bright_neg_gain[0][0] = 0x00; 1875 ram_table->bright_neg_gain[0][1] = 0x00; 1876 ram_table->bright_neg_gain[0][2] = 0x00; 1877 ram_table->bright_neg_gain[0][3] = 0x00; 1878 ram_table->bright_neg_gain[1][0] = 0x00; 1879 ram_table->bright_neg_gain[1][1] = 0x00; 1880 ram_table->bright_neg_gain[1][2] = 0x00; 1881 ram_table->bright_neg_gain[1][3] = 0x00; 1882 ram_table->bright_neg_gain[2][0] = 0x00; 1883 ram_table->bright_neg_gain[2][1] = 0x00; 1884 ram_table->bright_neg_gain[2][2] = 0x00; 1885 ram_table->bright_neg_gain[2][3] = 0x00; 1886 ram_table->bright_neg_gain[3][0] = 0x00; 1887 ram_table->bright_neg_gain[3][1] = 0x00; 1888 ram_table->bright_neg_gain[3][2] = 0x00; 1889 ram_table->bright_neg_gain[3][3] = 0x00; 1890 ram_table->bright_neg_gain[4][0] = 0x00; 1891 ram_table->bright_neg_gain[4][1] = 0x00; 1892 ram_table->bright_neg_gain[4][2] = 0x00; 1893 ram_table->bright_neg_gain[4][3] = 0x00; 1894 ram_table->dark_pos_gain[0][0] = 0x00; 1895 ram_table->dark_pos_gain[0][1] = 0x00; 1896 ram_table->dark_pos_gain[0][2] = 0x00; 1897 ram_table->dark_pos_gain[0][3] = 0x00; 1898 ram_table->dark_pos_gain[1][0] = 0x00; 1899 ram_table->dark_pos_gain[1][1] = 0x00; 1900 ram_table->dark_pos_gain[1][2] = 0x00; 1901 ram_table->dark_pos_gain[1][3] = 0x00; 1902 ram_table->dark_pos_gain[2][0] = 0x00; 1903 ram_table->dark_pos_gain[2][1] = 0x00; 1904 ram_table->dark_pos_gain[2][2] = 0x00; 1905 ram_table->dark_pos_gain[2][3] = 0x00; 1906 ram_table->dark_pos_gain[3][0] = 0x00; 1907 ram_table->dark_pos_gain[3][1] = 0x00; 1908 ram_table->dark_pos_gain[3][2] = 0x00; 1909 ram_table->dark_pos_gain[3][3] = 0x00; 1910 ram_table->dark_pos_gain[4][0] = 0x00; 1911 ram_table->dark_pos_gain[4][1] = 0x00; 1912 ram_table->dark_pos_gain[4][2] = 0x00; 1913 ram_table->dark_pos_gain[4][3] = 0x00; 1914 ram_table->dark_neg_gain[0][0] = 0x00; 1915 ram_table->dark_neg_gain[0][1] = 0x00; 1916 ram_table->dark_neg_gain[0][2] = 0x00; 1917 ram_table->dark_neg_gain[0][3] = 0x00; 1918 ram_table->dark_neg_gain[1][0] = 0x00; 1919 ram_table->dark_neg_gain[1][1] = 0x00; 1920 ram_table->dark_neg_gain[1][2] = 0x00; 1921 ram_table->dark_neg_gain[1][3] = 0x00; 1922 ram_table->dark_neg_gain[2][0] = 0x00; 1923 ram_table->dark_neg_gain[2][1] = 0x00; 1924 ram_table->dark_neg_gain[2][2] = 0x00; 1925 ram_table->dark_neg_gain[2][3] = 0x00; 1926 ram_table->dark_neg_gain[3][0] = 0x00; 1927 ram_table->dark_neg_gain[3][1] = 0x00; 1928 ram_table->dark_neg_gain[3][2] = 0x00; 1929 ram_table->dark_neg_gain[3][3] = 0x00; 1930 ram_table->dark_neg_gain[4][0] = 0x00; 1931 ram_table->dark_neg_gain[4][1] = 0x00; 1932 ram_table->dark_neg_gain[4][2] = 0x00; 1933 ram_table->dark_neg_gain[4][3] = 0x00; 1934 1935 ram_table->iir_curve[0] = 0x65; 1936 ram_table->iir_curve[1] = 0x65; 1937 ram_table->iir_curve[2] = 0x65; 1938 ram_table->iir_curve[3] = 0x65; 1939 ram_table->iir_curve[4] = 0x65; 1940 1941 //Gamma 2.4 1942 ram_table->crgb_thresh[0] = cpu_to_be16(0x13b6); 1943 ram_table->crgb_thresh[1] = cpu_to_be16(0x1648); 1944 ram_table->crgb_thresh[2] = cpu_to_be16(0x18e3); 1945 ram_table->crgb_thresh[3] = cpu_to_be16(0x1b41); 1946 ram_table->crgb_thresh[4] = cpu_to_be16(0x1d46); 1947 ram_table->crgb_thresh[5] = cpu_to_be16(0x1f21); 1948 ram_table->crgb_thresh[6] = cpu_to_be16(0x2167); 1949 ram_table->crgb_thresh[7] = cpu_to_be16(0x2384); 1950 ram_table->crgb_offset[0] = cpu_to_be16(0x2999); 1951 ram_table->crgb_offset[1] = cpu_to_be16(0x3999); 1952 ram_table->crgb_offset[2] = cpu_to_be16(0x4666); 1953 ram_table->crgb_offset[3] = cpu_to_be16(0x5999); 1954 ram_table->crgb_offset[4] = cpu_to_be16(0x6333); 1955 ram_table->crgb_offset[5] = cpu_to_be16(0x7800); 1956 ram_table->crgb_offset[6] = cpu_to_be16(0x8c00); 1957 ram_table->crgb_offset[7] = cpu_to_be16(0xa000); 1958 ram_table->crgb_slope[0] = cpu_to_be16(0x3147); 1959 ram_table->crgb_slope[1] = cpu_to_be16(0x2978); 1960 ram_table->crgb_slope[2] = cpu_to_be16(0x23a2); 1961 ram_table->crgb_slope[3] = cpu_to_be16(0x1f55); 1962 ram_table->crgb_slope[4] = cpu_to_be16(0x1c63); 1963 ram_table->crgb_slope[5] = cpu_to_be16(0x1a0f); 1964 ram_table->crgb_slope[6] = cpu_to_be16(0x178d); 1965 ram_table->crgb_slope[7] = cpu_to_be16(0x15ab); 1966 1967 fill_backlight_transform_table( 1968 params, ram_table); 1969 } 1970 1971 static void fill_iram_v_2_2(struct iram_table_v_2_2 *ram_table, struct dmcu_iram_parameters params) 1972 { 1973 unsigned int set = params.set; 1974 1975 ram_table->flags = 0x0; 1976 1977 ram_table->min_abm_backlight = 1978 cpu_to_be16(params.min_abm_backlight); 1979 1980 ram_table->deviation_gain[0] = 0xb3; 1981 ram_table->deviation_gain[1] = 0xa8; 1982 ram_table->deviation_gain[2] = 0x98; 1983 ram_table->deviation_gain[3] = 0x68; 1984 1985 ram_table->min_reduction[0][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1986 ram_table->min_reduction[1][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1987 ram_table->min_reduction[2][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1988 ram_table->min_reduction[3][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1989 ram_table->min_reduction[4][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1990 ram_table->max_reduction[0][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1991 ram_table->max_reduction[1][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1992 ram_table->max_reduction[2][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1993 ram_table->max_reduction[3][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1994 ram_table->max_reduction[4][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1995 1996 ram_table->min_reduction[0][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 1997 ram_table->min_reduction[1][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 1998 ram_table->min_reduction[2][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 1999 ram_table->min_reduction[3][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 2000 ram_table->min_reduction[4][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 2001 ram_table->max_reduction[0][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 2002 ram_table->max_reduction[1][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 2003 ram_table->max_reduction[2][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 2004 ram_table->max_reduction[3][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 2005 ram_table->max_reduction[4][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 2006 2007 ram_table->min_reduction[0][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 2008 ram_table->min_reduction[1][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 2009 ram_table->min_reduction[2][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 2010 ram_table->min_reduction[3][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 2011 ram_table->min_reduction[4][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 2012 ram_table->max_reduction[0][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 2013 ram_table->max_reduction[1][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 2014 ram_table->max_reduction[2][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 2015 ram_table->max_reduction[3][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 2016 ram_table->max_reduction[4][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 2017 2018 ram_table->min_reduction[0][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 2019 ram_table->min_reduction[1][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 2020 ram_table->min_reduction[2][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 2021 ram_table->min_reduction[3][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 2022 ram_table->min_reduction[4][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 2023 ram_table->max_reduction[0][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 2024 ram_table->max_reduction[1][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 2025 ram_table->max_reduction[2][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 2026 ram_table->max_reduction[3][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 2027 ram_table->max_reduction[4][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 2028 2029 ram_table->bright_pos_gain[0][0] = 0x20; 2030 ram_table->bright_pos_gain[0][1] = 0x20; 2031 ram_table->bright_pos_gain[0][2] = 0x20; 2032 ram_table->bright_pos_gain[0][3] = 0x20; 2033 ram_table->bright_pos_gain[1][0] = 0x20; 2034 ram_table->bright_pos_gain[1][1] = 0x20; 2035 ram_table->bright_pos_gain[1][2] = 0x20; 2036 ram_table->bright_pos_gain[1][3] = 0x20; 2037 ram_table->bright_pos_gain[2][0] = 0x20; 2038 ram_table->bright_pos_gain[2][1] = 0x20; 2039 ram_table->bright_pos_gain[2][2] = 0x20; 2040 ram_table->bright_pos_gain[2][3] = 0x20; 2041 ram_table->bright_pos_gain[3][0] = 0x20; 2042 ram_table->bright_pos_gain[3][1] = 0x20; 2043 ram_table->bright_pos_gain[3][2] = 0x20; 2044 ram_table->bright_pos_gain[3][3] = 0x20; 2045 ram_table->bright_pos_gain[4][0] = 0x20; 2046 ram_table->bright_pos_gain[4][1] = 0x20; 2047 ram_table->bright_pos_gain[4][2] = 0x20; 2048 ram_table->bright_pos_gain[4][3] = 0x20; 2049 2050 ram_table->dark_pos_gain[0][0] = 0x00; 2051 ram_table->dark_pos_gain[0][1] = 0x00; 2052 ram_table->dark_pos_gain[0][2] = 0x00; 2053 ram_table->dark_pos_gain[0][3] = 0x00; 2054 ram_table->dark_pos_gain[1][0] = 0x00; 2055 ram_table->dark_pos_gain[1][1] = 0x00; 2056 ram_table->dark_pos_gain[1][2] = 0x00; 2057 ram_table->dark_pos_gain[1][3] = 0x00; 2058 ram_table->dark_pos_gain[2][0] = 0x00; 2059 ram_table->dark_pos_gain[2][1] = 0x00; 2060 ram_table->dark_pos_gain[2][2] = 0x00; 2061 ram_table->dark_pos_gain[2][3] = 0x00; 2062 ram_table->dark_pos_gain[3][0] = 0x00; 2063 ram_table->dark_pos_gain[3][1] = 0x00; 2064 ram_table->dark_pos_gain[3][2] = 0x00; 2065 ram_table->dark_pos_gain[3][3] = 0x00; 2066 ram_table->dark_pos_gain[4][0] = 0x00; 2067 ram_table->dark_pos_gain[4][1] = 0x00; 2068 ram_table->dark_pos_gain[4][2] = 0x00; 2069 ram_table->dark_pos_gain[4][3] = 0x00; 2070 2071 ram_table->hybrid_factor[0] = 0xff; 2072 ram_table->hybrid_factor[1] = 0xff; 2073 ram_table->hybrid_factor[2] = 0xff; 2074 ram_table->hybrid_factor[3] = 0xc0; 2075 2076 ram_table->contrast_factor[0] = 0x99; 2077 ram_table->contrast_factor[1] = 0x99; 2078 ram_table->contrast_factor[2] = 0x90; 2079 ram_table->contrast_factor[3] = 0x80; 2080 2081 ram_table->iir_curve[0] = 0x65; 2082 ram_table->iir_curve[1] = 0x65; 2083 ram_table->iir_curve[2] = 0x65; 2084 ram_table->iir_curve[3] = 0x65; 2085 ram_table->iir_curve[4] = 0x65; 2086 2087 //Gamma 2.2 2088 ram_table->crgb_thresh[0] = cpu_to_be16(0x127c); 2089 ram_table->crgb_thresh[1] = cpu_to_be16(0x151b); 2090 ram_table->crgb_thresh[2] = cpu_to_be16(0x17d5); 2091 ram_table->crgb_thresh[3] = cpu_to_be16(0x1a56); 2092 ram_table->crgb_thresh[4] = cpu_to_be16(0x1c83); 2093 ram_table->crgb_thresh[5] = cpu_to_be16(0x1e72); 2094 ram_table->crgb_thresh[6] = cpu_to_be16(0x20f0); 2095 ram_table->crgb_thresh[7] = cpu_to_be16(0x232b); 2096 ram_table->crgb_offset[0] = cpu_to_be16(0x2999); 2097 ram_table->crgb_offset[1] = cpu_to_be16(0x3999); 2098 ram_table->crgb_offset[2] = cpu_to_be16(0x4666); 2099 ram_table->crgb_offset[3] = cpu_to_be16(0x5999); 2100 ram_table->crgb_offset[4] = cpu_to_be16(0x6333); 2101 ram_table->crgb_offset[5] = cpu_to_be16(0x7800); 2102 ram_table->crgb_offset[6] = cpu_to_be16(0x8c00); 2103 ram_table->crgb_offset[7] = cpu_to_be16(0xa000); 2104 ram_table->crgb_slope[0] = cpu_to_be16(0x3609); 2105 ram_table->crgb_slope[1] = cpu_to_be16(0x2dfa); 2106 ram_table->crgb_slope[2] = cpu_to_be16(0x27ea); 2107 ram_table->crgb_slope[3] = cpu_to_be16(0x235d); 2108 ram_table->crgb_slope[4] = cpu_to_be16(0x2042); 2109 ram_table->crgb_slope[5] = cpu_to_be16(0x1dc3); 2110 ram_table->crgb_slope[6] = cpu_to_be16(0x1b1a); 2111 ram_table->crgb_slope[7] = cpu_to_be16(0x1910); 2112 2113 fill_backlight_transform_table_v_2_2( 2114 params, ram_table, true); 2115 } 2116 2117 static void fill_iram_v_2_3(struct iram_table_v_2_2 *ram_table, struct dmcu_iram_parameters params, bool big_endian) 2118 { 2119 unsigned int i, j; 2120 unsigned int set = params.set; 2121 2122 ram_table->flags = 0x0; 2123 ram_table->min_abm_backlight = (uint16_t)((big_endian) ? 2124 cpu_to_be16(params.min_abm_backlight) : 2125 cpu_to_le16(params.min_abm_backlight)); 2126 2127 for (i = 0; i < NUM_AGGR_LEVEL; i++) { 2128 ram_table->hybrid_factor[i] = (uint8_t)abm_settings[set][i].brightness_gain; 2129 ram_table->contrast_factor[i] = abm_settings[set][i].contrast_factor; 2130 ram_table->deviation_gain[i] = abm_settings[set][i].deviation_gain; 2131 ram_table->min_knee[i] = abm_settings[set][i].min_knee; 2132 ram_table->max_knee[i] = abm_settings[set][i].max_knee; 2133 2134 for (j = 0; j < NUM_AMBI_LEVEL; j++) { 2135 ram_table->min_reduction[j][i] = abm_settings[set][i].min_reduction; 2136 ram_table->max_reduction[j][i] = abm_settings[set][i].max_reduction; 2137 ram_table->bright_pos_gain[j][i] = abm_settings[set][i].bright_pos_gain; 2138 ram_table->dark_pos_gain[j][i] = abm_settings[set][i].dark_pos_gain; 2139 } 2140 } 2141 2142 ram_table->iir_curve[0] = 0x65; 2143 ram_table->iir_curve[1] = 0x65; 2144 ram_table->iir_curve[2] = 0x65; 2145 ram_table->iir_curve[3] = 0x65; 2146 ram_table->iir_curve[4] = 0x65; 2147 2148 //Gamma 2.2 2149 ram_table->crgb_thresh[0] = bswap16_based_on_endian(big_endian, 0x127c); 2150 ram_table->crgb_thresh[1] = bswap16_based_on_endian(big_endian, 0x151b); 2151 ram_table->crgb_thresh[2] = bswap16_based_on_endian(big_endian, 0x17d5); 2152 ram_table->crgb_thresh[3] = bswap16_based_on_endian(big_endian, 0x1a56); 2153 ram_table->crgb_thresh[4] = bswap16_based_on_endian(big_endian, 0x1c83); 2154 ram_table->crgb_thresh[5] = bswap16_based_on_endian(big_endian, 0x1e72); 2155 ram_table->crgb_thresh[6] = bswap16_based_on_endian(big_endian, 0x20f0); 2156 ram_table->crgb_thresh[7] = bswap16_based_on_endian(big_endian, 0x232b); 2157 ram_table->crgb_offset[0] = bswap16_based_on_endian(big_endian, 0x2999); 2158 ram_table->crgb_offset[1] = bswap16_based_on_endian(big_endian, 0x3999); 2159 ram_table->crgb_offset[2] = bswap16_based_on_endian(big_endian, 0x4666); 2160 ram_table->crgb_offset[3] = bswap16_based_on_endian(big_endian, 0x5999); 2161 ram_table->crgb_offset[4] = bswap16_based_on_endian(big_endian, 0x6333); 2162 ram_table->crgb_offset[5] = bswap16_based_on_endian(big_endian, 0x7800); 2163 ram_table->crgb_offset[6] = bswap16_based_on_endian(big_endian, 0x8c00); 2164 ram_table->crgb_offset[7] = bswap16_based_on_endian(big_endian, 0xa000); 2165 ram_table->crgb_slope[0] = bswap16_based_on_endian(big_endian, 0x3609); 2166 ram_table->crgb_slope[1] = bswap16_based_on_endian(big_endian, 0x2dfa); 2167 ram_table->crgb_slope[2] = bswap16_based_on_endian(big_endian, 0x27ea); 2168 ram_table->crgb_slope[3] = bswap16_based_on_endian(big_endian, 0x235d); 2169 ram_table->crgb_slope[4] = bswap16_based_on_endian(big_endian, 0x2042); 2170 ram_table->crgb_slope[5] = bswap16_based_on_endian(big_endian, 0x1dc3); 2171 ram_table->crgb_slope[6] = bswap16_based_on_endian(big_endian, 0x1b1a); 2172 ram_table->crgb_slope[7] = bswap16_based_on_endian(big_endian, 0x1910); 2173 2174 fill_backlight_transform_table_v_2_2( 2175 params, ram_table, big_endian); 2176 } 2177 2178 bool dmub_init_abm_config(struct resource_pool *res_pool, 2179 struct dmcu_iram_parameters params, 2180 unsigned int inst) 2181 { 2182 struct iram_table_v_2_2 ram_table; 2183 struct abm_config_table config; 2184 unsigned int set = params.set; 2185 bool result = false; 2186 uint32_t i, j = 0; 2187 2188 if (res_pool->abm == NULL && res_pool->multiple_abms[inst] == NULL) 2189 return false; 2190 2191 memset(&ram_table, 0, sizeof(ram_table)); 2192 memset(&config, 0, sizeof(config)); 2193 2194 fill_iram_v_2_3(&ram_table, params, false); 2195 2196 // We must copy to structure that is aligned to 32-bit 2197 for (i = 0; i < NUM_POWER_FN_SEGS; i++) { 2198 config.crgb_thresh[i] = ram_table.crgb_thresh[i]; 2199 config.crgb_offset[i] = ram_table.crgb_offset[i]; 2200 config.crgb_slope[i] = ram_table.crgb_slope[i]; 2201 } 2202 2203 for (i = 0; i < NUM_BL_CURVE_SEGS; i++) { 2204 config.backlight_thresholds[i] = ram_table.backlight_thresholds[i]; 2205 config.backlight_offsets[i] = ram_table.backlight_offsets[i]; 2206 } 2207 2208 for (i = 0; i < NUM_AMBI_LEVEL; i++) 2209 config.iir_curve[i] = ram_table.iir_curve[i]; 2210 2211 for (i = 0; i < NUM_AMBI_LEVEL; i++) { 2212 for (j = 0; j < NUM_AGGR_LEVEL; j++) { 2213 config.min_reduction[i][j] = ram_table.min_reduction[i][j]; 2214 config.max_reduction[i][j] = ram_table.max_reduction[i][j]; 2215 config.bright_pos_gain[i][j] = ram_table.bright_pos_gain[i][j]; 2216 config.dark_pos_gain[i][j] = ram_table.dark_pos_gain[i][j]; 2217 } 2218 } 2219 2220 for (i = 0; i < NUM_AGGR_LEVEL; i++) { 2221 config.hybrid_factor[i] = ram_table.hybrid_factor[i]; 2222 config.contrast_factor[i] = ram_table.contrast_factor[i]; 2223 config.deviation_gain[i] = ram_table.deviation_gain[i]; 2224 config.min_knee[i] = ram_table.min_knee[i]; 2225 config.max_knee[i] = ram_table.max_knee[i]; 2226 } 2227 2228 if (params.backlight_ramping_override) { 2229 2230 ASSERT(params.backlight_ramping_reduction <= 0xFFFF); 2231 ASSERT(params.backlight_ramping_start <= 0xFFFF); 2232 for (i = 0; i < NUM_AGGR_LEVEL; i++) { 2233 config.blRampReduction[i] = (uint16_t)params.backlight_ramping_reduction; 2234 config.blRampStart[i] = (uint16_t)params.backlight_ramping_start; 2235 } 2236 } else { 2237 for (i = 0; i < NUM_AGGR_LEVEL; i++) { 2238 config.blRampReduction[i] = abm_settings[set][i].blRampReduction; 2239 config.blRampStart[i] = abm_settings[set][i].blRampStart; 2240 } 2241 } 2242 2243 config.min_abm_backlight = ram_table.min_abm_backlight; 2244 2245 if (res_pool->multiple_abms[inst]) { 2246 result = res_pool->multiple_abms[inst]->funcs->init_abm_config( 2247 res_pool->multiple_abms[inst], (char *)(&config), sizeof(struct abm_config_table), inst); 2248 } else 2249 result = res_pool->abm->funcs->init_abm_config( 2250 res_pool->abm, (char *)(&config), sizeof(struct abm_config_table), 0); 2251 2252 return result; 2253 } 2254 2255 bool dmub_is_abm_supported(struct resource_pool *res_pool, unsigned int inst) 2256 { 2257 2258 if (res_pool->abm == NULL && res_pool->multiple_abms[inst] == NULL) 2259 return false; 2260 2261 return true; 2262 } 2263 2264 bool dmub_set_abm_event(struct resource_pool *res_pool, 2265 unsigned int full_screen, unsigned int trans_info, 2266 unsigned int hdr_mode, unsigned int scaling_enable, unsigned int scaling_strength_map, 2267 unsigned int inst) 2268 { 2269 bool result = false; 2270 2271 if (res_pool->abm == NULL && res_pool->multiple_abms[inst] == NULL) 2272 return false; 2273 2274 if (res_pool->multiple_abms[inst]) { 2275 if (res_pool->multiple_abms[inst]->funcs->set_abm_event) 2276 result = res_pool->multiple_abms[inst]->funcs->set_abm_event( 2277 res_pool->multiple_abms[inst], full_screen, trans_info, 2278 hdr_mode, scaling_enable, scaling_strength_map, inst); 2279 } else { 2280 if (res_pool->abm->funcs->set_abm_event) 2281 result = res_pool->abm->funcs->set_abm_event( 2282 res_pool->abm, full_screen, trans_info, 2283 hdr_mode, scaling_enable, scaling_strength_map, inst); 2284 } 2285 2286 return result; 2287 } 2288 2289 bool dmub_set_abm_strength(struct resource_pool *res_pool, 2290 unsigned int strength, 2291 unsigned int inst) 2292 { 2293 bool result = false; 2294 2295 if (res_pool->abm == NULL && res_pool->multiple_abms[inst] == NULL) 2296 return false; 2297 2298 if (res_pool->multiple_abms[inst]) { 2299 if (res_pool->multiple_abms[inst]->funcs->set_abm_level) 2300 result = res_pool->multiple_abms[inst]->funcs->set_abm_level( 2301 res_pool->multiple_abms[inst], strength); 2302 } else { 2303 if (res_pool->abm->funcs->set_abm_level) 2304 result = res_pool->abm->funcs->set_abm_level( 2305 res_pool->abm, strength); 2306 } 2307 2308 return result; 2309 } 2310 2311 bool dmcu_load_iram(struct dmcu *dmcu, 2312 struct dmcu_iram_parameters params) 2313 { 2314 unsigned char ram_table[IRAM_SIZE]; 2315 bool result = false; 2316 2317 if (dmcu == NULL) 2318 return false; 2319 2320 if (dmcu && !dmcu->funcs->is_dmcu_initialized(dmcu)) 2321 return true; 2322 2323 memset(&ram_table, 0, sizeof(ram_table)); 2324 2325 if (dmcu->dmcu_version.abm_version == 0x24) { 2326 fill_iram_v_2_3((struct iram_table_v_2_2 *)ram_table, params, true); 2327 result = dmcu->funcs->load_iram(dmcu, 0, (char *)(&ram_table), 2328 IRAM_RESERVE_AREA_START_V2_2); 2329 } else if (dmcu->dmcu_version.abm_version == 0x23) { 2330 fill_iram_v_2_3((struct iram_table_v_2_2 *)ram_table, params, true); 2331 2332 result = dmcu->funcs->load_iram( 2333 dmcu, 0, (char *)(&ram_table), IRAM_RESERVE_AREA_START_V2_2); 2334 } else if (dmcu->dmcu_version.abm_version == 0x22) { 2335 fill_iram_v_2_2((struct iram_table_v_2_2 *)ram_table, params); 2336 2337 result = dmcu->funcs->load_iram( 2338 dmcu, 0, (char *)(&ram_table), IRAM_RESERVE_AREA_START_V2_2); 2339 } else { 2340 fill_iram_v_2((struct iram_table_v_2 *)ram_table, params); 2341 2342 result = dmcu->funcs->load_iram( 2343 dmcu, 0, (char *)(&ram_table), IRAM_RESERVE_AREA_START_V2); 2344 2345 if (result) 2346 result = dmcu->funcs->load_iram( 2347 dmcu, IRAM_RESERVE_AREA_END_V2 + 1, 2348 (char *)(&ram_table) + IRAM_RESERVE_AREA_END_V2 + 1, 2349 sizeof(ram_table) - IRAM_RESERVE_AREA_END_V2 - 1); 2350 } 2351 2352 return result; 2353 } 2354 2355 bool fill_custom_backlight_caps(unsigned int config_no, struct dm_acpi_atif_backlight_caps *caps) 2356 { 2357 unsigned int data_points_size; 2358 uint64_t caps_size; 2359 2360 if (config_no >= ARRAY_SIZE(custom_backlight_profiles)) 2361 return false; 2362 2363 data_points_size = custom_backlight_profiles[config_no].num_data_points 2364 * sizeof(custom_backlight_profiles[config_no].data_points[0]); 2365 2366 caps_size = sizeof(struct dm_acpi_atif_backlight_caps) - sizeof(caps->data_points) + data_points_size; 2367 ASSERT(caps_size <= 0xFFFF); 2368 caps->size = (uint16_t)caps_size; 2369 caps->flags = 0; 2370 caps->error_code = 0; 2371 caps->ac_level_percentage = custom_backlight_profiles[config_no].ac_level_percentage; 2372 caps->dc_level_percentage = custom_backlight_profiles[config_no].dc_level_percentage; 2373 caps->min_input_signal = custom_backlight_profiles[config_no].min_input_signal; 2374 caps->max_input_signal = custom_backlight_profiles[config_no].max_input_signal; 2375 caps->num_data_points = (uint8_t)custom_backlight_profiles[config_no].num_data_points; 2376 memcpy(caps->data_points, custom_backlight_profiles[config_no].data_points, data_points_size); 2377 return true; 2378 } 2379