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(sizeof(struct dm_acpi_atif_backlight_caps), 709 GFP_KERNEL)); 710 711 if (ext_backlight_caps == NULL) 712 return; 713 714 /* Retrieve ACPI extended brightness caps */ 715 if (dm_query_extended_brightness_caps 716 (dc->ctx, acpi_display_type, ext_backlight_caps)) { 717 custom_curve_present = validate_ext_backlight_caps(ext_backlight_caps); 718 } 719 720 if (core_power->bl_prop[inst].use_custom_backlight_caps && 721 fill_custom_backlight_caps( 722 core_power->bl_prop[inst].custom_backlight_caps_config_no, 723 ext_backlight_caps)) { 724 custom_curve_present = validate_ext_backlight_caps(ext_backlight_caps); 725 } 726 727 if (custom_curve_present) { 728 unsigned int index = 1; 729 unsigned int num_of_data_points = ext_backlight_caps->num_data_points; 730 731 core_power->bl_prop[inst].ac_backlight_percent = 732 ext_backlight_caps->ac_level_percentage; 733 core_power->bl_prop[inst].dc_backlight_percent = 734 ext_backlight_caps->dc_level_percentage; 735 core_power->bl_prop[inst].backlight_lut[0] = 736 backlight_8_to_16( 737 ext_backlight_caps->min_input_signal); 738 core_power->bl_prop[inst].backlight_lut[num_levels - 1] = 739 backlight_8_to_16( 740 ext_backlight_caps->max_input_signal); 741 742 /* Filling translation table from data points - 743 * between every two provided data points we 744 * lineary interpolate missing values 745 */ 746 for (i = 0; i < num_of_data_points; i++) { 747 unsigned int luminance = 748 ext_backlight_caps->data_points[i].luminance; 749 unsigned int signal_level = 750 backlight_8_to_16( 751 ext_backlight_caps->data_points[i].signal_level); 752 753 /* Since luminance is a percentage, scale it by num_levels*/ 754 luminance = (luminance * num_levels) / 101; 755 756 /* Lineary interpolate missing values */ 757 if (index < luminance) { 758 unsigned int base_value = 759 core_power->bl_prop[inst].backlight_lut[index-1]; 760 unsigned int delta_signal = 761 signal_level - base_value; 762 unsigned int delta_luma = 763 luminance - index + 1; 764 unsigned int step = delta_signal; 765 766 for (; index < luminance; index++) { 767 core_power->bl_prop[inst].backlight_lut[index] = 768 base_value + (step / delta_luma); 769 step += delta_signal; 770 } 771 } 772 773 /* Now [index == luminance], 774 * so we can add data point to the translation table 775 */ 776 core_power->bl_prop[inst].backlight_lut[index++] = signal_level; 777 } 778 779 /* Complete the final segment of interpolation - 780 * between last datapoint and maximum value 781 */ 782 if (index < num_levels - 1) { 783 unsigned int base_value = 784 core_power->bl_prop[inst].backlight_lut[index-1]; 785 unsigned int delta_signal = 786 core_power->bl_prop[inst].backlight_lut[num_levels - 1] - 787 base_value; 788 unsigned int delta_luma = num_levels - index; 789 unsigned int step = delta_signal; 790 791 for (; index < num_levels - 1; index++) { 792 core_power->bl_prop[inst].backlight_lut[index] = 793 base_value + (step / delta_luma); 794 step += delta_signal; 795 } 796 } 797 /* Build backlight translation table based on default curve */ 798 } else { 799 /* Defines default backlight curve F(x) = A(x*x) + Bx + C. 800 * 801 * Backlight curve should always satisfy: 802 * F(0) = min, F(100) = max, 803 * So polynom coefficients are: 804 * A is 0.0255 - B/100 - min/10000 - (255-max)/10000 = 805 * (max - min)/10000 - B/100 806 * B is adjustable factor to modify the curve. 807 * Bigger B results in less concave curve. 808 * B range is [0..(max-min)/100] 809 * C is backlight minimum 810 */ 811 unsigned int backlight_curve_coeff_a_factor = 812 num_levels * num_levels; 813 unsigned int backlight_curve_coeff_b = num_levels; 814 unsigned int delta = 815 core_power->bl_prop[inst].backlight_lut[num_levels - 1] - 816 core_power->bl_prop[inst].backlight_lut[0]; 817 unsigned int coeffC = core_power->bl_prop[inst].backlight_lut[0]; 818 unsigned int coeffB = 819 (backlight_curve_coeff_b < delta ? 820 backlight_curve_coeff_b : delta); 821 unsigned long long coeffA = delta - coeffB; /* coeffB is B*100 */ 822 823 for (i = 1; i < num_levels - 1; i++) { 824 uint64_t lut_val = div_u64(coeffA * i * i, backlight_curve_coeff_a_factor) + 825 div_u64((uint64_t)coeffB * i, backlight_curve_coeff_b) + coeffC; 826 827 ASSERT(lut_val <= 0xFFFFFFFF); 828 core_power->bl_prop[inst].backlight_lut[i] = (unsigned int)lut_val; 829 } 830 } 831 832 if (ext_backlight_caps != NULL) 833 kfree(ext_backlight_caps); 834 835 /* Successfully initialized */ 836 core_power->bl_prop[inst].backlight_caps_valid = true; 837 } 838 839 static void varibright_set_level(struct core_power *core_power) 840 { 841 if (!core_power->varibright_prop.varibright_active || 842 !core_power->varibright_prop.varibright_user_enable) 843 core_power->varibright_prop.varibright_hw_level = 0; 844 else 845 core_power->varibright_prop.varibright_hw_level = 846 core_power->varibright_prop.varibright_level; 847 } 848 849 bool mod_power_hw_init_backlight(struct mod_power *mod_power) 850 { 851 struct core_power *core_power = NULL; 852 struct dc *dc = NULL; 853 struct dmcu *dmcu = NULL; 854 struct dmcu_iram_parameters params; 855 unsigned int i; 856 857 if (mod_power == NULL) 858 return false; 859 860 core_power = MOD_POWER_TO_CORE(mod_power); 861 dc = core_power->dc; 862 863 for (i = 0; i < core_power->edp_num; i++) { 864 params.set = core_power->varibright_prop.varibright_config_setting; 865 params.backlight_ramping_override = core_power->bl_prop[i].backlight_ramping_override; 866 params.backlight_ramping_reduction = core_power->bl_prop[i].backlight_ramping_reduction; 867 params.backlight_ramping_start = core_power->bl_prop[i].backlight_ramping_start; 868 params.backlight_lut_array = core_power->bl_prop[i].backlight_lut; 869 params.backlight_lut_array_size = core_power->bl_prop[i].num_backlight_levels; 870 params.min_abm_backlight = core_power->bl_prop[i].min_abm_backlight; 871 872 dmcu = dc->res_pool->dmcu; 873 874 // In the case where abm is implemented on dmcub, 875 // dmcu object will be null. 876 // ABM 2.4 and up are implemented on dmcub. 877 if (dmcu) { 878 //DMCU does not support multiple eDP 879 return dmcu_load_iram(dmcu, params); 880 } else if (dc->ctx->dmub_srv) { 881 if (!dmub_init_abm_config(dc->res_pool, params, i)) 882 return false; 883 } else 884 return false; 885 } 886 return true; 887 } 888 889 void mod_power_update_backlight_on_mode_change( 890 struct core_power *core_power, 891 struct dc_link *link, 892 unsigned int panel_inst, 893 uint8_t aux_inst, 894 bool is_hdr) 895 { 896 struct set_backlight_level_params backlight_level_params = { 0 }; 897 898 /* Cache the panel's backlight control type once at mode-change/init 899 * time. It is a stable per-panel property (decided in the OS shim 900 * from panel type + DPCD caps), so the brightness translation 901 * helpers can read it without it being passed on every call. 902 */ 903 mod_power_set_backlight_control_type(core_power, panel_inst, 904 link->backlight_control_type); 905 906 if ((link->dpcd_sink_ext_caps.bits.hdr_aux_backlight_control == 1 || 907 link->dpcd_sink_ext_caps.bits.sdr_aux_backlight_control == 1) && 908 link->backlight_control_type == BACKLIGHT_CONTROL_AMD_AUX) 909 dc_link_set_backlight_level_nits(link, core_power->bl_state[panel_inst].isHDR, 910 core_power->bl_state[panel_inst].backlight_millinit, 0); 911 912 backlight_level_params.frame_ramp = 0; 913 914 fill_backlight_level_params(core_power, &backlight_level_params, panel_inst, aux_inst, 915 core_power->bl_state[panel_inst].backlight_pwm, link->backlight_control_type, 916 core_power->bl_state[panel_inst].backlight_millinit, 0, is_hdr); 917 918 dc_link_set_backlight_level(link, &backlight_level_params); 919 } 920 921 static bool set_backlight_millinits_aux(struct core_power *core_power, 922 struct dc_stream_state *stream, 923 unsigned int backlight_millinits, 924 unsigned int transition_time_millisec, 925 unsigned int inst) 926 { 927 struct dc_link *link = NULL; 928 929 if (core_power == NULL) 930 return false; 931 932 if (stream == NULL) 933 return true; 934 935 link = dc_stream_get_link(stream); 936 937 // only use internal backlight control if dmub capabilities are not present 938 if (link->backlight_control_type == BACKLIGHT_CONTROL_VESA_AUX && 939 link->dc->caps.dmub_caps.aux_backlight_support) 940 return true; 941 942 return dc_link_set_backlight_level_nits(link, core_power->bl_state[inst].isHDR, 943 backlight_millinits, transition_time_millisec); 944 } 945 946 static bool set_backlight(struct core_power *core_power, 947 struct dc_stream_state *stream, 948 struct set_backlight_level_params *backlight_level_params, 949 unsigned int inst) 950 { 951 bool retv = false; 952 unsigned int frame_ramp = 0; 953 unsigned int vsync_rate_hz; 954 union dmcu_abm_set_bl_params params; 955 const struct dc_link *link = NULL; 956 unsigned int backlight_pwm_u16_16 = backlight_level_params->backlight_pwm_u16_16; 957 unsigned int transition_time_millisec = backlight_level_params->transition_time_in_ms; 958 959 if (core_power == NULL) 960 return false; 961 962 core_power->bl_state[inst].backlight_pwm = backlight_pwm_u16_16; 963 964 if (stream == NULL) 965 return true; 966 967 if (stream->link->connector_signal != SIGNAL_TYPE_EDP) 968 return false; 969 970 if (transition_time_millisec != 0) { 971 unsigned int v_total = 972 (stream->adjust.v_total_max == 0) ? stream->timing.v_total : stream->adjust.v_total_max; 973 974 vsync_rate_hz = (unsigned int)div_u64(div_u64((stream-> 975 timing.pix_clk_100hz * 100), 976 v_total), 977 stream->timing.h_total); 978 979 if (core_power->bl_state[inst].smooth_brightness_enabled) 980 frame_ramp = ((vsync_rate_hz * 981 transition_time_millisec) + 500) / 1000; 982 } 983 984 core_power->bl_state[inst].frame_ramp = frame_ramp; 985 params.u32All = 0; 986 params.bits.gradual_change = (frame_ramp > 0); 987 params.bits.frame_ramp = frame_ramp; 988 link = dc_stream_get_link(stream); 989 990 mod_power_set_psr_event(&core_power->mod_public, stream, true, psr_event_hw_programming, true); 991 mod_power_set_replay_event(&core_power->mod_public, stream, true, replay_event_hw_programming, true); 992 993 backlight_level_params->frame_ramp = params.u32All; 994 retv = dc_link_set_backlight_level(link, backlight_level_params); 995 996 mod_power_set_psr_event(&core_power->mod_public, stream, false, psr_event_hw_programming, false); 997 mod_power_set_replay_event(&core_power->mod_public, stream, false, replay_event_hw_programming, false); 998 999 return retv; 1000 } 1001 1002 void fill_backlight_level_params(struct core_power *core_power, 1003 struct set_backlight_level_params *backlight_level_params, 1004 int panel_inst, uint8_t aux_inst, unsigned int backlight_pwm, 1005 enum backlight_control_type backlight_control_type, 1006 unsigned int backlight_millinit, unsigned int transition_time_millisec, 1007 bool is_hdr) 1008 { 1009 struct pwr_backlight_properties *bl_prop = &core_power->bl_prop[panel_inst]; 1010 1011 backlight_level_params->aux_inst = aux_inst; 1012 backlight_level_params->backlight_pwm_u16_16 = backlight_pwm; 1013 backlight_level_params->control_type = backlight_control_type; 1014 backlight_level_params->backlight_millinits = backlight_millinit; 1015 backlight_level_params->transition_time_in_ms = transition_time_millisec; 1016 backlight_level_params->min_luminance = bl_prop->min_brightness_millinits; 1017 backlight_level_params->max_luminance = bl_prop->max_brightness_millinits; 1018 backlight_level_params->min_backlight_pwm = bl_prop->min_backlight_pwm; 1019 backlight_level_params->max_backlight_pwm = bl_prop->max_backlight_pwm; 1020 1021 if (backlight_control_type == BACKLIGHT_CONTROL_AMD_AUX && !is_hdr) 1022 backlight_level_params->control_type = BACKLIGHT_CONTROL_PWM; 1023 } 1024 1025 bool mod_power_set_backlight_nits(struct mod_power *mod_power, 1026 struct dc_stream_state *stream, 1027 unsigned int backlight_millinit, 1028 unsigned int transition_time_millisec, 1029 bool skip_aux, 1030 bool is_hdr) 1031 { 1032 struct core_power *core_power = NULL; 1033 unsigned int backlight_pwm; 1034 unsigned int panel_inst = 0; 1035 struct set_backlight_level_params backlight_level_params = { 0 }; 1036 const struct dc_link *link = NULL; 1037 uint8_t aux_inst = 0; 1038 1039 if (mod_power == NULL) 1040 return false; 1041 1042 core_power = MOD_POWER_TO_CORE(mod_power); 1043 link = dc_stream_get_link(stream); 1044 1045 aux_inst = link->dc->link_srv->get_ddc_aux_inst(link); 1046 1047 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &panel_inst)) 1048 return false; 1049 1050 if (!skip_aux) { 1051 if (!set_backlight_millinits_aux(core_power, stream, 1052 backlight_millinit, transition_time_millisec, panel_inst)) 1053 return false; 1054 } 1055 // always send both AUX (above) and PWM (below) 1056 core_power->bl_state[panel_inst].backlight_millinit = backlight_millinit; 1057 1058 core_power->bl_state[panel_inst].backlight_millipercent = 1059 backlight_millinit_to_millipercent( 1060 core_power, backlight_millinit, panel_inst); 1061 1062 backlight_pwm = backlight_millinit_to_pwm( 1063 core_power, backlight_millinit, panel_inst); 1064 1065 fill_backlight_level_params(core_power, &backlight_level_params, panel_inst, aux_inst, backlight_pwm, 1066 link->backlight_control_type, backlight_millinit, transition_time_millisec, is_hdr); 1067 1068 return set_backlight(core_power, stream, 1069 &backlight_level_params, panel_inst); 1070 } 1071 1072 bool mod_power_backlight_percent_to_nits(struct mod_power *mod_power, 1073 struct dc_stream_state *stream, 1074 unsigned int backlight_millipercent, 1075 unsigned int *backlight_millinit) 1076 { 1077 struct core_power *core_power = NULL; 1078 unsigned int inst = 0; 1079 1080 if (mod_power == NULL) 1081 return false; 1082 1083 core_power = MOD_POWER_TO_CORE(mod_power); 1084 1085 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &inst)) 1086 return false; 1087 1088 *backlight_millinit = backlight_millipercent_to_millinit( 1089 core_power, backlight_millipercent, inst); 1090 return true; 1091 } 1092 1093 bool mod_power_backlight_nits_to_percent(struct mod_power *mod_power, 1094 struct dc_stream_state *stream, 1095 unsigned int backlight_millinit, 1096 unsigned int *backlight_millipercent) 1097 { 1098 struct core_power *core_power = NULL; 1099 unsigned int inst = 0; 1100 1101 if (mod_power == NULL) 1102 return false; 1103 1104 core_power = MOD_POWER_TO_CORE(mod_power); 1105 1106 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &inst)) 1107 return false; 1108 1109 *backlight_millipercent = backlight_millinit_to_millipercent( 1110 core_power, backlight_millinit, inst); 1111 return true; 1112 } 1113 1114 bool mod_power_set_backlight_percent(struct mod_power *mod_power, 1115 struct dc_stream_state *stream, 1116 unsigned int backlight_millipercent, 1117 unsigned int transition_time_millisec, 1118 bool is_hdr) 1119 { 1120 struct core_power *core_power = NULL; 1121 struct set_backlight_level_params backlight_level_params = { 0 }; 1122 const struct dc_link *link = NULL; 1123 unsigned int backlight_pwm; 1124 unsigned int panel_inst = 0; 1125 uint8_t aux_inst = 0; 1126 1127 if (mod_power == NULL) 1128 return false; 1129 1130 core_power = MOD_POWER_TO_CORE(mod_power); 1131 link = dc_stream_get_link(stream); 1132 aux_inst = link->dc->link_srv->get_ddc_aux_inst(link); 1133 1134 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &panel_inst)) 1135 return false; 1136 core_power->bl_state[panel_inst].backlight_millipercent = backlight_millipercent; 1137 1138 core_power->bl_state[panel_inst].backlight_millinit = 1139 backlight_millipercent_to_millinit( 1140 core_power, backlight_millipercent, panel_inst); 1141 1142 backlight_pwm = backlight_millipercent_to_pwm( 1143 core_power, backlight_millipercent, panel_inst); 1144 1145 fill_backlight_level_params(core_power, &backlight_level_params, panel_inst, 1146 aux_inst, backlight_pwm, link->backlight_control_type, 1147 core_power->bl_state[panel_inst].backlight_millinit, transition_time_millisec, is_hdr); 1148 1149 return set_backlight(core_power, stream, 1150 &backlight_level_params, panel_inst); 1151 } 1152 1153 void mod_power_update_backlight(struct mod_power *mod_power, 1154 struct dc_stream_state *stream, 1155 unsigned int backlight_millipercent) 1156 { 1157 struct core_power *core_power = NULL; 1158 unsigned int inst = 0; 1159 1160 if (mod_power == NULL) 1161 return; 1162 1163 core_power = MOD_POWER_TO_CORE(mod_power); 1164 1165 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &inst)) 1166 return; 1167 core_power->bl_state[inst].backlight_millipercent = backlight_millipercent; 1168 1169 core_power->bl_state[inst].backlight_millinit = 1170 backlight_millipercent_to_millinit( 1171 core_power, backlight_millipercent, inst); 1172 1173 core_power->bl_state[inst].backlight_pwm = backlight_millipercent_to_pwm( 1174 core_power, backlight_millipercent, inst); 1175 } 1176 1177 void mod_power_update_backlight_nits(struct mod_power *mod_power, 1178 struct dc_stream_state *stream, 1179 unsigned int backlight_millinit) 1180 { 1181 struct core_power *core_power = NULL; 1182 unsigned int inst = 0; 1183 1184 if (mod_power == NULL) 1185 return; 1186 1187 core_power = MOD_POWER_TO_CORE(mod_power); 1188 1189 if (!dc_get_edp_link_panel_inst(core_power->dc, stream->link, &inst)) 1190 return; 1191 1192 core_power->bl_state[inst].backlight_millinit = backlight_millinit; 1193 1194 core_power->bl_state[inst].backlight_millipercent = backlight_millinit_to_millipercent( 1195 core_power, backlight_millinit, inst); 1196 core_power->bl_state[inst].backlight_pwm = backlight_millinit_to_pwm( 1197 core_power, backlight_millinit, inst); 1198 } 1199 1200 bool mod_power_get_backlight_pwm(struct mod_power *mod_power, 1201 unsigned int *backlight_pwm, 1202 unsigned int inst) 1203 { 1204 struct core_power *core_power = NULL; 1205 1206 if (mod_power == NULL) 1207 return false; 1208 1209 core_power = MOD_POWER_TO_CORE(mod_power); 1210 1211 *backlight_pwm = core_power->bl_state[inst].backlight_pwm; 1212 1213 return true; 1214 } 1215 1216 bool mod_power_get_backlight_nits(struct mod_power *mod_power, 1217 unsigned int *backlight_millinit, 1218 unsigned int inst) 1219 { 1220 struct core_power *core_power = NULL; 1221 1222 if (mod_power == NULL) 1223 return false; 1224 1225 core_power = MOD_POWER_TO_CORE(mod_power); 1226 1227 *backlight_millinit = core_power->bl_state[inst].backlight_millinit; 1228 1229 return true; 1230 } 1231 1232 bool mod_power_get_backlight_percent(struct mod_power *mod_power, 1233 unsigned int *backlight_millipercent, 1234 unsigned int inst) 1235 { 1236 struct core_power *core_power = NULL; 1237 1238 if (mod_power == NULL) 1239 return false; 1240 1241 core_power = MOD_POWER_TO_CORE(mod_power); 1242 1243 *backlight_millipercent = core_power->bl_state[inst].backlight_millipercent; 1244 1245 return true; 1246 } 1247 1248 bool mod_power_get_hw_target_backlight_pwm_nits(struct mod_power *mod_power, 1249 const struct dc_link *link, 1250 unsigned int *backlight_millinit, 1251 unsigned int inst) 1252 { 1253 struct core_power *core_power = NULL; 1254 unsigned int backlight_u16_16 = 0; 1255 1256 if (mod_power == NULL) 1257 return false; 1258 1259 core_power = MOD_POWER_TO_CORE(mod_power); 1260 1261 if (mod_power_get_hw_target_backlight_pwm(mod_power, link, 1262 &backlight_u16_16)) { 1263 *backlight_millinit = 1264 backlight_pwm_to_millinit(core_power, 1265 backlight_u16_16, inst); 1266 return true; 1267 } 1268 return false; 1269 } 1270 1271 bool mod_power_get_hw_target_backlight_pwm_percent(struct mod_power *mod_power, 1272 const struct dc_link *link, 1273 unsigned int *backlight_millipercent, 1274 unsigned int inst) 1275 { 1276 struct core_power *core_power = NULL; 1277 unsigned int backlight_u16_16 = 0; 1278 1279 if (mod_power == NULL) 1280 return false; 1281 1282 core_power = MOD_POWER_TO_CORE(mod_power); 1283 1284 if (mod_power_get_hw_target_backlight_pwm(mod_power, link, 1285 &backlight_u16_16)) { 1286 *backlight_millipercent = 1287 backlight_pwm_to_millipercent(core_power, 1288 backlight_u16_16, inst); 1289 return true; 1290 } 1291 return false; 1292 } 1293 1294 bool mod_power_get_hw_target_backlight_pwm(struct mod_power *mod_power, 1295 const struct dc_link *link, 1296 unsigned int *backlight_u16_16) 1297 { 1298 if (mod_power == NULL) 1299 return false; 1300 1301 *backlight_u16_16 = dc_link_get_target_backlight_pwm(link); 1302 1303 return true; 1304 } 1305 1306 bool mod_power_get_hw_backlight_pwm_nits(struct mod_power *mod_power, 1307 const struct dc_link *link, 1308 unsigned int *backlight_millinit, 1309 unsigned int inst) 1310 { 1311 struct core_power *core_power = NULL; 1312 unsigned int backlight_u16_16 = 0; 1313 1314 if (mod_power == NULL) 1315 return false; 1316 1317 core_power = MOD_POWER_TO_CORE(mod_power); 1318 1319 if (mod_power_get_hw_backlight_pwm(mod_power, link, &backlight_u16_16)) { 1320 *backlight_millinit = 1321 backlight_pwm_to_millinit(core_power, 1322 backlight_u16_16, inst); 1323 return true; 1324 } 1325 return false; 1326 } 1327 1328 bool mod_power_get_hw_backlight_aux_nits(struct mod_power *mod_power, 1329 struct dc_stream_state **streams, int num_streams, 1330 unsigned int *backlight_millinit_avg, 1331 unsigned int *backlight_millinit_peak) 1332 { 1333 struct core_power *core_power = NULL; 1334 struct dc_link *link = NULL; 1335 int stream_index; 1336 1337 if (mod_power == NULL) 1338 return false; 1339 1340 core_power = MOD_POWER_TO_CORE(mod_power); 1341 1342 if (core_power == NULL) 1343 return false; 1344 1345 if (num_streams < 1) 1346 return true; 1347 1348 for (stream_index = 0; stream_index < num_streams; stream_index++) 1349 if (streams[stream_index]->link->connector_signal == SIGNAL_TYPE_EDP || 1350 streams[stream_index]->link->connector_signal == SIGNAL_TYPE_DISPLAY_PORT) 1351 break; 1352 1353 if (stream_index == num_streams) 1354 return false; 1355 1356 link = dc_stream_get_link(streams[stream_index]); 1357 if (link->dpcd_sink_ext_caps.bits.hdr_aux_backlight_control == 0) 1358 return false; 1359 1360 return dc_link_get_backlight_level_nits(link, backlight_millinit_avg, 1361 backlight_millinit_peak); 1362 } 1363 1364 bool mod_power_get_hw_backlight_pwm_percent(struct mod_power *mod_power, 1365 const struct dc_link *link, 1366 unsigned int *backlight_millipercent, 1367 unsigned int inst) 1368 { 1369 struct core_power *core_power = NULL; 1370 unsigned int backlight_u16_16 = 0; 1371 1372 if (mod_power == NULL) 1373 return false; 1374 1375 core_power = MOD_POWER_TO_CORE(mod_power); 1376 1377 if (mod_power_get_hw_backlight_pwm(mod_power, link, &backlight_u16_16)) { 1378 *backlight_millipercent = 1379 backlight_pwm_to_millipercent(core_power, 1380 backlight_u16_16, inst); 1381 return true; 1382 } 1383 return false; 1384 } 1385 1386 bool mod_power_get_hw_backlight_pwm(struct mod_power *mod_power, 1387 const struct dc_link *link, 1388 unsigned int *backlight_u16_16) 1389 { 1390 if (mod_power == NULL) 1391 return false; 1392 1393 *backlight_u16_16 = dc_link_get_backlight_level(link); 1394 1395 return true; 1396 } 1397 1398 bool mod_power_get_panel_backlight_boundaries( 1399 struct mod_power *mod_power, 1400 unsigned int *out_min_backlight, 1401 unsigned int *out_max_backlight, 1402 unsigned int *out_ac_backlight_percent, 1403 unsigned int *out_dc_backlight_percent, 1404 unsigned int inst) 1405 { 1406 struct core_power *core_power = NULL; 1407 1408 if (mod_power == NULL) 1409 return false; 1410 1411 core_power = MOD_POWER_TO_CORE(mod_power); 1412 1413 /* If cache was successfully updated, 1414 * copy the values to output structure and return success 1415 */ 1416 if (core_power->bl_prop[inst].backlight_caps_valid) { 1417 *out_min_backlight = core_power->bl_prop[inst].backlight_lut[0]; 1418 *out_max_backlight = 1419 core_power->bl_prop[inst].backlight_lut[ 1420 core_power->bl_prop[inst].num_backlight_levels - 1]; 1421 *out_ac_backlight_percent = 1422 core_power->bl_prop[inst].ac_backlight_percent; 1423 *out_dc_backlight_percent = 1424 core_power->bl_prop[inst].dc_backlight_percent; 1425 1426 return true; 1427 } 1428 1429 return false; 1430 } 1431 1432 bool mod_power_set_smooth_brightness(struct mod_power *mod_power, 1433 bool enable_brightness, 1434 unsigned int inst) 1435 { 1436 struct core_power *core_power = NULL; 1437 1438 if (mod_power == NULL) 1439 return false; 1440 1441 core_power = MOD_POWER_TO_CORE(mod_power); 1442 1443 core_power->bl_state[inst].smooth_brightness_enabled = enable_brightness; 1444 1445 return true; 1446 } 1447 1448 bool mod_power_varibright_feature_enable(struct mod_power *mod_power, bool enable, 1449 struct dc_stream_update *stream_update) 1450 { 1451 struct core_power *core_power = NULL; 1452 1453 if (mod_power == NULL) 1454 return false; 1455 1456 core_power = MOD_POWER_TO_CORE(mod_power); 1457 core_power->varibright_prop.varibright_user_enable = enable; 1458 1459 /* find abm hw level to program, and save in stream update */ 1460 varibright_set_level(core_power); 1461 *stream_update->abm_level = core_power->varibright_prop.varibright_hw_level; 1462 1463 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1464 WPP_BIT_FLAG_Backlight_ABM, 1465 ">ABM feature enable: enable=%u su->varibright_level=%u varibright_hw_level=%u", 1466 (unsigned int) enable, 1467 *stream_update->abm_level, 1468 core_power->varibright_prop.varibright_hw_level); 1469 return true; 1470 } 1471 1472 bool mod_power_varibright_activate(struct mod_power *mod_power, 1473 bool activate, 1474 struct dc_stream_update *stream_update) 1475 { 1476 struct core_power *core_power = NULL; 1477 1478 if (mod_power == NULL) 1479 return false; 1480 1481 core_power = MOD_POWER_TO_CORE(mod_power); 1482 core_power->varibright_prop.varibright_active = activate; 1483 1484 /* find abm hw level to program, and save in stream update */ 1485 varibright_set_level(core_power); 1486 *stream_update->abm_level = core_power->varibright_prop.varibright_hw_level; 1487 1488 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1489 WPP_BIT_FLAG_Backlight_ABM, 1490 ">ABM activate: activate=%u su->varibright_level=%u", 1491 (unsigned int) activate, 1492 *stream_update->abm_level); 1493 return true; 1494 } 1495 bool mod_power_varibright_set_level(struct mod_power *mod_power, unsigned int level, 1496 struct dc_stream_update *stream_update) 1497 { 1498 struct core_power *core_power = NULL; 1499 1500 if (mod_power == NULL) 1501 return false; 1502 1503 core_power = MOD_POWER_TO_CORE(mod_power); 1504 core_power->varibright_prop.varibright_level = level; 1505 core_power->varibright_prop.varibright_hw_level = level; 1506 1507 /* find abm hw level to program, and save in stream update */ 1508 varibright_set_level(core_power); 1509 *stream_update->abm_level = core_power->varibright_prop.varibright_hw_level; 1510 1511 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1512 WPP_BIT_FLAG_Backlight_ABM, 1513 ">ABM set level: level=%u -> (varibright_level=%u varibright_hw_level=%u) -> su->varibright_level=%u", 1514 level, 1515 core_power->varibright_prop.varibright_level, 1516 core_power->varibright_prop.varibright_hw_level, 1517 *stream_update->abm_level); 1518 return true; 1519 } 1520 1521 bool mod_power_varibright_set_hw_level(struct mod_power *mod_power, unsigned int level, 1522 struct dc_stream_update *stream_update) 1523 { 1524 struct core_power *core_power = NULL; 1525 1526 if (mod_power == NULL) 1527 return false; 1528 1529 core_power = MOD_POWER_TO_CORE(mod_power); 1530 1531 if (level == 0 || level == ABM_LEVEL_IMMEDIATE_DISABLE) 1532 core_power->varibright_prop.varibright_active = 0; 1533 else 1534 core_power->varibright_prop.varibright_active = 1; 1535 core_power->varibright_prop.varibright_hw_level = level; 1536 *stream_update->abm_level = core_power->varibright_prop.varibright_hw_level; 1537 1538 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1539 WPP_BIT_FLAG_Backlight_ABM, 1540 ">ABM set level: level=%u -> (varibright_level=%u varibright_hw_level=%u) -> su->varibright_level=%u", 1541 level, 1542 core_power->varibright_prop.varibright_level, 1543 core_power->varibright_prop.varibright_hw_level, 1544 *stream_update->abm_level); 1545 return true; 1546 } 1547 1548 bool mod_power_get_varibright_level(struct mod_power *mod_power, 1549 unsigned int *varibright_level) 1550 { 1551 struct core_power *core_power = NULL; 1552 1553 if (mod_power == NULL) 1554 return false; 1555 1556 core_power = MOD_POWER_TO_CORE(mod_power); 1557 1558 *varibright_level = core_power->varibright_prop.varibright_level; 1559 1560 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1561 WPP_BIT_FLAG_Backlight_ABM, 1562 ">get varibright level: cp->varibright_level=%u", 1563 *varibright_level); 1564 return true; 1565 1566 } 1567 1568 bool mod_power_get_varibright_hw_level(struct mod_power *mod_power, 1569 unsigned int *varibright_level) 1570 { 1571 struct core_power *core_power = NULL; 1572 1573 if (mod_power == NULL) 1574 return false; 1575 1576 core_power = MOD_POWER_TO_CORE(mod_power); 1577 1578 *varibright_level = core_power->varibright_prop.varibright_hw_level; 1579 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1580 WPP_BIT_FLAG_Backlight_ABM, 1581 ">get varibright HW level: hw_level=%u", 1582 *varibright_level); 1583 return true; 1584 } 1585 1586 bool mod_power_get_varibright_default_level(struct mod_power *mod_power, 1587 unsigned int *varibright_level) 1588 { 1589 struct core_power *core_power = NULL; 1590 1591 if (mod_power == NULL) 1592 return false; 1593 1594 core_power = MOD_POWER_TO_CORE(mod_power); 1595 1596 *varibright_level = core_power->varibright_prop.def_varibright_level; 1597 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1598 WPP_BIT_FLAG_Backlight_ABM, 1599 ">get varibright default level: def_varibright_level=%u", 1600 *varibright_level); 1601 return true; 1602 } 1603 1604 bool mod_power_get_varibright_enable(struct mod_power *mod_power, 1605 bool *varibright_enable) 1606 { 1607 struct core_power *core_power = NULL; 1608 1609 if (mod_power == NULL) 1610 return false; 1611 1612 core_power = MOD_POWER_TO_CORE(mod_power); 1613 1614 *varibright_enable = core_power->varibright_prop.varibright_user_enable; 1615 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1616 WPP_BIT_FLAG_Backlight_ABM, 1617 ">get varibright enable state: varibright_user_enable=%u", 1618 (unsigned int) (*varibright_enable)); 1619 return true; 1620 } 1621 1622 bool mod_power_is_abm_active(struct mod_power *mod_power, 1623 const struct dc_link *link, 1624 unsigned int inst) 1625 { 1626 unsigned int user_backlight = 0; 1627 unsigned int current_backlight = 0; 1628 bool is_active = false; 1629 1630 if (mod_power == NULL) 1631 return false; 1632 1633 mod_power_get_backlight_pwm(mod_power, &user_backlight, inst); 1634 mod_power_get_hw_backlight_pwm(mod_power, link, ¤t_backlight); 1635 1636 if (user_backlight != current_backlight) 1637 is_active = true; 1638 else 1639 is_active = false; 1640 DC_TRACE_LEVEL_MESSAGEP(DAL_TRACE_LEVEL_INFORMATION, 1641 WPP_BIT_FLAG_Backlight_ABM, 1642 ">get ABM active state: is_active=%u (user_backlight_pwm=%u, current_backlight_pwm=%u)", 1643 (unsigned int)is_active, 1644 user_backlight, 1645 current_backlight); 1646 return is_active; 1647 } 1648 1649 bool mod_power_is_abm_supported(struct mod_power *mod_power, 1650 unsigned int inst) 1651 { 1652 struct core_power *core_power = NULL; 1653 struct dc *dc = NULL; 1654 1655 if (mod_power == NULL) 1656 return false; 1657 1658 core_power = MOD_POWER_TO_CORE(mod_power); 1659 dc = core_power->dc; 1660 1661 // It's only implemented on dmcub. 1662 if (dc->ctx->dmub_srv) { 1663 if (!dmub_is_abm_supported(dc->res_pool, inst)) 1664 return false; 1665 } else 1666 return false; 1667 1668 return true; 1669 } 1670 1671 bool mod_power_abm_set_event(struct mod_power *mod_power, 1672 unsigned int full_screen, unsigned int trans_info, 1673 unsigned int hdr_mode, unsigned int scaling_enable, 1674 unsigned int scaling_strength_map, unsigned int inst) 1675 { 1676 struct core_power *core_power = NULL; 1677 struct dc *dc = NULL; 1678 1679 if (mod_power == NULL) 1680 return false; 1681 1682 core_power = MOD_POWER_TO_CORE(mod_power); 1683 dc = core_power->dc; 1684 1685 // It's only implemented on dmcub. 1686 if (dc->ctx->dmub_srv) { 1687 if (!dmub_set_abm_event(dc->res_pool, full_screen, trans_info, 1688 hdr_mode, scaling_enable, scaling_strength_map, inst)) 1689 return false; 1690 } else 1691 return false; 1692 1693 return true; 1694 } 1695 1696 bool mod_power_abm_set_strength(struct mod_power *mod_power, 1697 unsigned int strength, 1698 unsigned int inst) 1699 { 1700 struct core_power *core_power = NULL; 1701 struct dc *dc = NULL; 1702 1703 if (mod_power == NULL) 1704 return false; 1705 1706 core_power = MOD_POWER_TO_CORE(mod_power); 1707 dc = core_power->dc; 1708 1709 // It's only implemented on dmcub. 1710 if (dc->ctx->dmub_srv) { 1711 if (!dmub_set_abm_strength(dc->res_pool, strength, inst)) 1712 return false; 1713 } else 1714 return false; 1715 1716 return true; 1717 } 1718 1719 static void fill_backlight_transform_table(struct dmcu_iram_parameters params, 1720 struct iram_table_v_2 *table) 1721 { 1722 unsigned int i; 1723 unsigned int num_entries = NUM_BL_CURVE_SEGS; 1724 unsigned int lut_index; 1725 1726 table->backlight_thresholds[0] = 0; 1727 ASSERT(params.backlight_lut_array[0] <= 0xFFFF); 1728 table->backlight_offsets[0] = (uint16_t)params.backlight_lut_array[0]; 1729 table->backlight_thresholds[num_entries-1] = 0xFFFF; 1730 ASSERT(params.backlight_lut_array[params.backlight_lut_array_size - 1] <= 0xFFFF); 1731 table->backlight_offsets[num_entries-1] = 1732 (uint16_t)params.backlight_lut_array[params.backlight_lut_array_size - 1]; 1733 1734 /* Setup all brightness levels between 0% and 100% exclusive 1735 * Fills brightness-to-backlight transform table. Backlight custom curve 1736 * describes transform from brightness to backlight. It will be defined 1737 * as set of thresholds and set of offsets, together, implying 1738 * extrapolation of custom curve into 16 uniformly spanned linear 1739 * segments. Each threshold/offset represented by 16 bit entry in 1740 * format U4.10. 1741 */ 1742 for (i = 1; i+1 < num_entries; i++) { 1743 lut_index = (params.backlight_lut_array_size - 1) * i / (num_entries - 1); 1744 1745 ASSERT(lut_index < params.backlight_lut_array_size); 1746 1747 unsigned int threshold_val = DIV_ROUNDUP((i * 65536), num_entries); 1748 unsigned int offset_val = params.backlight_lut_array[lut_index]; 1749 1750 ASSERT(threshold_val <= 0xFFFF); 1751 ASSERT(offset_val <= 0xFFFF); 1752 1753 table->backlight_thresholds[i] = cpu_to_be16((uint16_t)threshold_val); 1754 table->backlight_offsets[i] = cpu_to_be16((uint16_t)offset_val); 1755 } 1756 } 1757 1758 static void fill_backlight_transform_table_v_2_2(struct dmcu_iram_parameters params, 1759 struct iram_table_v_2_2 *table, bool big_endian) 1760 { 1761 unsigned int i; 1762 unsigned int num_entries = NUM_BL_CURVE_SEGS; 1763 unsigned int lut_index; 1764 1765 table->backlight_thresholds[0] = 0; 1766 ASSERT(params.backlight_lut_array[0] <= 0xFFFF); 1767 table->backlight_offsets[0] = (uint16_t)params.backlight_lut_array[0]; 1768 table->backlight_thresholds[num_entries-1] = 0xFFFF; 1769 ASSERT(params.backlight_lut_array[params.backlight_lut_array_size - 1] <= 0xFFFF); 1770 table->backlight_offsets[num_entries-1] = 1771 (uint16_t)params.backlight_lut_array[params.backlight_lut_array_size - 1]; 1772 1773 /* Setup all brightness levels between 0% and 100% exclusive 1774 * Fills brightness-to-backlight transform table. Backlight custom curve 1775 * describes transform from brightness to backlight. It will be defined 1776 * as set of thresholds and set of offsets, together, implying 1777 * extrapolation of custom curve into 16 uniformly spanned linear 1778 * segments. Each threshold/offset represented by 16 bit entry in 1779 * format U4.10. 1780 */ 1781 for (i = 1; i+1 < num_entries; i++) { 1782 lut_index = DIV_ROUNDUP((i * params.backlight_lut_array_size), num_entries); 1783 ASSERT(lut_index < params.backlight_lut_array_size); 1784 1785 unsigned int threshold_val = DIV_ROUNDUP((i * 65536), num_entries); 1786 unsigned int offset_val = params.backlight_lut_array[lut_index]; 1787 1788 ASSERT(threshold_val <= 0xFFFF); 1789 ASSERT(offset_val <= 0xFFFF); 1790 1791 table->backlight_thresholds[i] = (big_endian) ? 1792 cpu_to_be16((uint16_t)threshold_val) : cpu_to_le16((uint16_t)threshold_val); 1793 table->backlight_offsets[i] = (big_endian) ? 1794 cpu_to_be16((uint16_t)offset_val) : cpu_to_le16((uint16_t)offset_val); 1795 } 1796 } 1797 1798 static void fill_iram_v_2(struct iram_table_v_2 *ram_table, struct dmcu_iram_parameters params) 1799 { 1800 unsigned int set = params.set; 1801 1802 ram_table->min_abm_backlight = 1803 cpu_to_be16(params.min_abm_backlight); 1804 ram_table->deviation_gain = 0xb3; 1805 1806 ram_table->blRampReduction = 1807 cpu_to_be16(params.backlight_ramping_reduction); 1808 ram_table->blRampStart = 1809 cpu_to_be16(params.backlight_ramping_start); 1810 1811 ram_table->min_reduction[0][0] = min_reduction_table[abm_config[set][0]]; 1812 ram_table->min_reduction[1][0] = min_reduction_table[abm_config[set][0]]; 1813 ram_table->min_reduction[2][0] = min_reduction_table[abm_config[set][0]]; 1814 ram_table->min_reduction[3][0] = min_reduction_table[abm_config[set][0]]; 1815 ram_table->min_reduction[4][0] = min_reduction_table[abm_config[set][0]]; 1816 ram_table->max_reduction[0][0] = max_reduction_table[abm_config[set][0]]; 1817 ram_table->max_reduction[1][0] = max_reduction_table[abm_config[set][0]]; 1818 ram_table->max_reduction[2][0] = max_reduction_table[abm_config[set][0]]; 1819 ram_table->max_reduction[3][0] = max_reduction_table[abm_config[set][0]]; 1820 ram_table->max_reduction[4][0] = max_reduction_table[abm_config[set][0]]; 1821 1822 ram_table->min_reduction[0][1] = min_reduction_table[abm_config[set][1]]; 1823 ram_table->min_reduction[1][1] = min_reduction_table[abm_config[set][1]]; 1824 ram_table->min_reduction[2][1] = min_reduction_table[abm_config[set][1]]; 1825 ram_table->min_reduction[3][1] = min_reduction_table[abm_config[set][1]]; 1826 ram_table->min_reduction[4][1] = min_reduction_table[abm_config[set][1]]; 1827 ram_table->max_reduction[0][1] = max_reduction_table[abm_config[set][1]]; 1828 ram_table->max_reduction[1][1] = max_reduction_table[abm_config[set][1]]; 1829 ram_table->max_reduction[2][1] = max_reduction_table[abm_config[set][1]]; 1830 ram_table->max_reduction[3][1] = max_reduction_table[abm_config[set][1]]; 1831 ram_table->max_reduction[4][1] = max_reduction_table[abm_config[set][1]]; 1832 1833 ram_table->min_reduction[0][2] = min_reduction_table[abm_config[set][2]]; 1834 ram_table->min_reduction[1][2] = min_reduction_table[abm_config[set][2]]; 1835 ram_table->min_reduction[2][2] = min_reduction_table[abm_config[set][2]]; 1836 ram_table->min_reduction[3][2] = min_reduction_table[abm_config[set][2]]; 1837 ram_table->min_reduction[4][2] = min_reduction_table[abm_config[set][2]]; 1838 ram_table->max_reduction[0][2] = max_reduction_table[abm_config[set][2]]; 1839 ram_table->max_reduction[1][2] = max_reduction_table[abm_config[set][2]]; 1840 ram_table->max_reduction[2][2] = max_reduction_table[abm_config[set][2]]; 1841 ram_table->max_reduction[3][2] = max_reduction_table[abm_config[set][2]]; 1842 ram_table->max_reduction[4][2] = max_reduction_table[abm_config[set][2]]; 1843 1844 ram_table->min_reduction[0][3] = min_reduction_table[abm_config[set][3]]; 1845 ram_table->min_reduction[1][3] = min_reduction_table[abm_config[set][3]]; 1846 ram_table->min_reduction[2][3] = min_reduction_table[abm_config[set][3]]; 1847 ram_table->min_reduction[3][3] = min_reduction_table[abm_config[set][3]]; 1848 ram_table->min_reduction[4][3] = min_reduction_table[abm_config[set][3]]; 1849 ram_table->max_reduction[0][3] = max_reduction_table[abm_config[set][3]]; 1850 ram_table->max_reduction[1][3] = max_reduction_table[abm_config[set][3]]; 1851 ram_table->max_reduction[2][3] = max_reduction_table[abm_config[set][3]]; 1852 ram_table->max_reduction[3][3] = max_reduction_table[abm_config[set][3]]; 1853 ram_table->max_reduction[4][3] = max_reduction_table[abm_config[set][3]]; 1854 1855 ram_table->bright_pos_gain[0][0] = 0x20; 1856 ram_table->bright_pos_gain[0][1] = 0x20; 1857 ram_table->bright_pos_gain[0][2] = 0x20; 1858 ram_table->bright_pos_gain[0][3] = 0x20; 1859 ram_table->bright_pos_gain[1][0] = 0x20; 1860 ram_table->bright_pos_gain[1][1] = 0x20; 1861 ram_table->bright_pos_gain[1][2] = 0x20; 1862 ram_table->bright_pos_gain[1][3] = 0x20; 1863 ram_table->bright_pos_gain[2][0] = 0x20; 1864 ram_table->bright_pos_gain[2][1] = 0x20; 1865 ram_table->bright_pos_gain[2][2] = 0x20; 1866 ram_table->bright_pos_gain[2][3] = 0x20; 1867 ram_table->bright_pos_gain[3][0] = 0x20; 1868 ram_table->bright_pos_gain[3][1] = 0x20; 1869 ram_table->bright_pos_gain[3][2] = 0x20; 1870 ram_table->bright_pos_gain[3][3] = 0x20; 1871 ram_table->bright_pos_gain[4][0] = 0x20; 1872 ram_table->bright_pos_gain[4][1] = 0x20; 1873 ram_table->bright_pos_gain[4][2] = 0x20; 1874 ram_table->bright_pos_gain[4][3] = 0x20; 1875 ram_table->bright_neg_gain[0][0] = 0x00; 1876 ram_table->bright_neg_gain[0][1] = 0x00; 1877 ram_table->bright_neg_gain[0][2] = 0x00; 1878 ram_table->bright_neg_gain[0][3] = 0x00; 1879 ram_table->bright_neg_gain[1][0] = 0x00; 1880 ram_table->bright_neg_gain[1][1] = 0x00; 1881 ram_table->bright_neg_gain[1][2] = 0x00; 1882 ram_table->bright_neg_gain[1][3] = 0x00; 1883 ram_table->bright_neg_gain[2][0] = 0x00; 1884 ram_table->bright_neg_gain[2][1] = 0x00; 1885 ram_table->bright_neg_gain[2][2] = 0x00; 1886 ram_table->bright_neg_gain[2][3] = 0x00; 1887 ram_table->bright_neg_gain[3][0] = 0x00; 1888 ram_table->bright_neg_gain[3][1] = 0x00; 1889 ram_table->bright_neg_gain[3][2] = 0x00; 1890 ram_table->bright_neg_gain[3][3] = 0x00; 1891 ram_table->bright_neg_gain[4][0] = 0x00; 1892 ram_table->bright_neg_gain[4][1] = 0x00; 1893 ram_table->bright_neg_gain[4][2] = 0x00; 1894 ram_table->bright_neg_gain[4][3] = 0x00; 1895 ram_table->dark_pos_gain[0][0] = 0x00; 1896 ram_table->dark_pos_gain[0][1] = 0x00; 1897 ram_table->dark_pos_gain[0][2] = 0x00; 1898 ram_table->dark_pos_gain[0][3] = 0x00; 1899 ram_table->dark_pos_gain[1][0] = 0x00; 1900 ram_table->dark_pos_gain[1][1] = 0x00; 1901 ram_table->dark_pos_gain[1][2] = 0x00; 1902 ram_table->dark_pos_gain[1][3] = 0x00; 1903 ram_table->dark_pos_gain[2][0] = 0x00; 1904 ram_table->dark_pos_gain[2][1] = 0x00; 1905 ram_table->dark_pos_gain[2][2] = 0x00; 1906 ram_table->dark_pos_gain[2][3] = 0x00; 1907 ram_table->dark_pos_gain[3][0] = 0x00; 1908 ram_table->dark_pos_gain[3][1] = 0x00; 1909 ram_table->dark_pos_gain[3][2] = 0x00; 1910 ram_table->dark_pos_gain[3][3] = 0x00; 1911 ram_table->dark_pos_gain[4][0] = 0x00; 1912 ram_table->dark_pos_gain[4][1] = 0x00; 1913 ram_table->dark_pos_gain[4][2] = 0x00; 1914 ram_table->dark_pos_gain[4][3] = 0x00; 1915 ram_table->dark_neg_gain[0][0] = 0x00; 1916 ram_table->dark_neg_gain[0][1] = 0x00; 1917 ram_table->dark_neg_gain[0][2] = 0x00; 1918 ram_table->dark_neg_gain[0][3] = 0x00; 1919 ram_table->dark_neg_gain[1][0] = 0x00; 1920 ram_table->dark_neg_gain[1][1] = 0x00; 1921 ram_table->dark_neg_gain[1][2] = 0x00; 1922 ram_table->dark_neg_gain[1][3] = 0x00; 1923 ram_table->dark_neg_gain[2][0] = 0x00; 1924 ram_table->dark_neg_gain[2][1] = 0x00; 1925 ram_table->dark_neg_gain[2][2] = 0x00; 1926 ram_table->dark_neg_gain[2][3] = 0x00; 1927 ram_table->dark_neg_gain[3][0] = 0x00; 1928 ram_table->dark_neg_gain[3][1] = 0x00; 1929 ram_table->dark_neg_gain[3][2] = 0x00; 1930 ram_table->dark_neg_gain[3][3] = 0x00; 1931 ram_table->dark_neg_gain[4][0] = 0x00; 1932 ram_table->dark_neg_gain[4][1] = 0x00; 1933 ram_table->dark_neg_gain[4][2] = 0x00; 1934 ram_table->dark_neg_gain[4][3] = 0x00; 1935 1936 ram_table->iir_curve[0] = 0x65; 1937 ram_table->iir_curve[1] = 0x65; 1938 ram_table->iir_curve[2] = 0x65; 1939 ram_table->iir_curve[3] = 0x65; 1940 ram_table->iir_curve[4] = 0x65; 1941 1942 //Gamma 2.4 1943 ram_table->crgb_thresh[0] = cpu_to_be16(0x13b6); 1944 ram_table->crgb_thresh[1] = cpu_to_be16(0x1648); 1945 ram_table->crgb_thresh[2] = cpu_to_be16(0x18e3); 1946 ram_table->crgb_thresh[3] = cpu_to_be16(0x1b41); 1947 ram_table->crgb_thresh[4] = cpu_to_be16(0x1d46); 1948 ram_table->crgb_thresh[5] = cpu_to_be16(0x1f21); 1949 ram_table->crgb_thresh[6] = cpu_to_be16(0x2167); 1950 ram_table->crgb_thresh[7] = cpu_to_be16(0x2384); 1951 ram_table->crgb_offset[0] = cpu_to_be16(0x2999); 1952 ram_table->crgb_offset[1] = cpu_to_be16(0x3999); 1953 ram_table->crgb_offset[2] = cpu_to_be16(0x4666); 1954 ram_table->crgb_offset[3] = cpu_to_be16(0x5999); 1955 ram_table->crgb_offset[4] = cpu_to_be16(0x6333); 1956 ram_table->crgb_offset[5] = cpu_to_be16(0x7800); 1957 ram_table->crgb_offset[6] = cpu_to_be16(0x8c00); 1958 ram_table->crgb_offset[7] = cpu_to_be16(0xa000); 1959 ram_table->crgb_slope[0] = cpu_to_be16(0x3147); 1960 ram_table->crgb_slope[1] = cpu_to_be16(0x2978); 1961 ram_table->crgb_slope[2] = cpu_to_be16(0x23a2); 1962 ram_table->crgb_slope[3] = cpu_to_be16(0x1f55); 1963 ram_table->crgb_slope[4] = cpu_to_be16(0x1c63); 1964 ram_table->crgb_slope[5] = cpu_to_be16(0x1a0f); 1965 ram_table->crgb_slope[6] = cpu_to_be16(0x178d); 1966 ram_table->crgb_slope[7] = cpu_to_be16(0x15ab); 1967 1968 fill_backlight_transform_table( 1969 params, ram_table); 1970 } 1971 1972 static void fill_iram_v_2_2(struct iram_table_v_2_2 *ram_table, struct dmcu_iram_parameters params) 1973 { 1974 unsigned int set = params.set; 1975 1976 ram_table->flags = 0x0; 1977 1978 ram_table->min_abm_backlight = 1979 cpu_to_be16(params.min_abm_backlight); 1980 1981 ram_table->deviation_gain[0] = 0xb3; 1982 ram_table->deviation_gain[1] = 0xa8; 1983 ram_table->deviation_gain[2] = 0x98; 1984 ram_table->deviation_gain[3] = 0x68; 1985 1986 ram_table->min_reduction[0][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1987 ram_table->min_reduction[1][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1988 ram_table->min_reduction[2][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1989 ram_table->min_reduction[3][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1990 ram_table->min_reduction[4][0] = min_reduction_table_v_2_2[abm_config[set][0]]; 1991 ram_table->max_reduction[0][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1992 ram_table->max_reduction[1][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1993 ram_table->max_reduction[2][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1994 ram_table->max_reduction[3][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1995 ram_table->max_reduction[4][0] = max_reduction_table_v_2_2[abm_config[set][0]]; 1996 1997 ram_table->min_reduction[0][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 1998 ram_table->min_reduction[1][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 1999 ram_table->min_reduction[2][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 2000 ram_table->min_reduction[3][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 2001 ram_table->min_reduction[4][1] = min_reduction_table_v_2_2[abm_config[set][1]]; 2002 ram_table->max_reduction[0][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 2003 ram_table->max_reduction[1][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 2004 ram_table->max_reduction[2][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 2005 ram_table->max_reduction[3][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 2006 ram_table->max_reduction[4][1] = max_reduction_table_v_2_2[abm_config[set][1]]; 2007 2008 ram_table->min_reduction[0][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 2009 ram_table->min_reduction[1][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 2010 ram_table->min_reduction[2][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 2011 ram_table->min_reduction[3][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 2012 ram_table->min_reduction[4][2] = min_reduction_table_v_2_2[abm_config[set][2]]; 2013 ram_table->max_reduction[0][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 2014 ram_table->max_reduction[1][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 2015 ram_table->max_reduction[2][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 2016 ram_table->max_reduction[3][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 2017 ram_table->max_reduction[4][2] = max_reduction_table_v_2_2[abm_config[set][2]]; 2018 2019 ram_table->min_reduction[0][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 2020 ram_table->min_reduction[1][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 2021 ram_table->min_reduction[2][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 2022 ram_table->min_reduction[3][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 2023 ram_table->min_reduction[4][3] = min_reduction_table_v_2_2[abm_config[set][3]]; 2024 ram_table->max_reduction[0][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 2025 ram_table->max_reduction[1][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 2026 ram_table->max_reduction[2][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 2027 ram_table->max_reduction[3][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 2028 ram_table->max_reduction[4][3] = max_reduction_table_v_2_2[abm_config[set][3]]; 2029 2030 ram_table->bright_pos_gain[0][0] = 0x20; 2031 ram_table->bright_pos_gain[0][1] = 0x20; 2032 ram_table->bright_pos_gain[0][2] = 0x20; 2033 ram_table->bright_pos_gain[0][3] = 0x20; 2034 ram_table->bright_pos_gain[1][0] = 0x20; 2035 ram_table->bright_pos_gain[1][1] = 0x20; 2036 ram_table->bright_pos_gain[1][2] = 0x20; 2037 ram_table->bright_pos_gain[1][3] = 0x20; 2038 ram_table->bright_pos_gain[2][0] = 0x20; 2039 ram_table->bright_pos_gain[2][1] = 0x20; 2040 ram_table->bright_pos_gain[2][2] = 0x20; 2041 ram_table->bright_pos_gain[2][3] = 0x20; 2042 ram_table->bright_pos_gain[3][0] = 0x20; 2043 ram_table->bright_pos_gain[3][1] = 0x20; 2044 ram_table->bright_pos_gain[3][2] = 0x20; 2045 ram_table->bright_pos_gain[3][3] = 0x20; 2046 ram_table->bright_pos_gain[4][0] = 0x20; 2047 ram_table->bright_pos_gain[4][1] = 0x20; 2048 ram_table->bright_pos_gain[4][2] = 0x20; 2049 ram_table->bright_pos_gain[4][3] = 0x20; 2050 2051 ram_table->dark_pos_gain[0][0] = 0x00; 2052 ram_table->dark_pos_gain[0][1] = 0x00; 2053 ram_table->dark_pos_gain[0][2] = 0x00; 2054 ram_table->dark_pos_gain[0][3] = 0x00; 2055 ram_table->dark_pos_gain[1][0] = 0x00; 2056 ram_table->dark_pos_gain[1][1] = 0x00; 2057 ram_table->dark_pos_gain[1][2] = 0x00; 2058 ram_table->dark_pos_gain[1][3] = 0x00; 2059 ram_table->dark_pos_gain[2][0] = 0x00; 2060 ram_table->dark_pos_gain[2][1] = 0x00; 2061 ram_table->dark_pos_gain[2][2] = 0x00; 2062 ram_table->dark_pos_gain[2][3] = 0x00; 2063 ram_table->dark_pos_gain[3][0] = 0x00; 2064 ram_table->dark_pos_gain[3][1] = 0x00; 2065 ram_table->dark_pos_gain[3][2] = 0x00; 2066 ram_table->dark_pos_gain[3][3] = 0x00; 2067 ram_table->dark_pos_gain[4][0] = 0x00; 2068 ram_table->dark_pos_gain[4][1] = 0x00; 2069 ram_table->dark_pos_gain[4][2] = 0x00; 2070 ram_table->dark_pos_gain[4][3] = 0x00; 2071 2072 ram_table->hybrid_factor[0] = 0xff; 2073 ram_table->hybrid_factor[1] = 0xff; 2074 ram_table->hybrid_factor[2] = 0xff; 2075 ram_table->hybrid_factor[3] = 0xc0; 2076 2077 ram_table->contrast_factor[0] = 0x99; 2078 ram_table->contrast_factor[1] = 0x99; 2079 ram_table->contrast_factor[2] = 0x90; 2080 ram_table->contrast_factor[3] = 0x80; 2081 2082 ram_table->iir_curve[0] = 0x65; 2083 ram_table->iir_curve[1] = 0x65; 2084 ram_table->iir_curve[2] = 0x65; 2085 ram_table->iir_curve[3] = 0x65; 2086 ram_table->iir_curve[4] = 0x65; 2087 2088 //Gamma 2.2 2089 ram_table->crgb_thresh[0] = cpu_to_be16(0x127c); 2090 ram_table->crgb_thresh[1] = cpu_to_be16(0x151b); 2091 ram_table->crgb_thresh[2] = cpu_to_be16(0x17d5); 2092 ram_table->crgb_thresh[3] = cpu_to_be16(0x1a56); 2093 ram_table->crgb_thresh[4] = cpu_to_be16(0x1c83); 2094 ram_table->crgb_thresh[5] = cpu_to_be16(0x1e72); 2095 ram_table->crgb_thresh[6] = cpu_to_be16(0x20f0); 2096 ram_table->crgb_thresh[7] = cpu_to_be16(0x232b); 2097 ram_table->crgb_offset[0] = cpu_to_be16(0x2999); 2098 ram_table->crgb_offset[1] = cpu_to_be16(0x3999); 2099 ram_table->crgb_offset[2] = cpu_to_be16(0x4666); 2100 ram_table->crgb_offset[3] = cpu_to_be16(0x5999); 2101 ram_table->crgb_offset[4] = cpu_to_be16(0x6333); 2102 ram_table->crgb_offset[5] = cpu_to_be16(0x7800); 2103 ram_table->crgb_offset[6] = cpu_to_be16(0x8c00); 2104 ram_table->crgb_offset[7] = cpu_to_be16(0xa000); 2105 ram_table->crgb_slope[0] = cpu_to_be16(0x3609); 2106 ram_table->crgb_slope[1] = cpu_to_be16(0x2dfa); 2107 ram_table->crgb_slope[2] = cpu_to_be16(0x27ea); 2108 ram_table->crgb_slope[3] = cpu_to_be16(0x235d); 2109 ram_table->crgb_slope[4] = cpu_to_be16(0x2042); 2110 ram_table->crgb_slope[5] = cpu_to_be16(0x1dc3); 2111 ram_table->crgb_slope[6] = cpu_to_be16(0x1b1a); 2112 ram_table->crgb_slope[7] = cpu_to_be16(0x1910); 2113 2114 fill_backlight_transform_table_v_2_2( 2115 params, ram_table, true); 2116 } 2117 2118 static void fill_iram_v_2_3(struct iram_table_v_2_2 *ram_table, struct dmcu_iram_parameters params, bool big_endian) 2119 { 2120 unsigned int i, j; 2121 unsigned int set = params.set; 2122 2123 ram_table->flags = 0x0; 2124 ram_table->min_abm_backlight = (uint16_t)((big_endian) ? 2125 cpu_to_be16(params.min_abm_backlight) : 2126 cpu_to_le16(params.min_abm_backlight)); 2127 2128 for (i = 0; i < NUM_AGGR_LEVEL; i++) { 2129 ram_table->hybrid_factor[i] = (uint8_t)abm_settings[set][i].brightness_gain; 2130 ram_table->contrast_factor[i] = abm_settings[set][i].contrast_factor; 2131 ram_table->deviation_gain[i] = abm_settings[set][i].deviation_gain; 2132 ram_table->min_knee[i] = abm_settings[set][i].min_knee; 2133 ram_table->max_knee[i] = abm_settings[set][i].max_knee; 2134 2135 for (j = 0; j < NUM_AMBI_LEVEL; j++) { 2136 ram_table->min_reduction[j][i] = abm_settings[set][i].min_reduction; 2137 ram_table->max_reduction[j][i] = abm_settings[set][i].max_reduction; 2138 ram_table->bright_pos_gain[j][i] = abm_settings[set][i].bright_pos_gain; 2139 ram_table->dark_pos_gain[j][i] = abm_settings[set][i].dark_pos_gain; 2140 } 2141 } 2142 2143 ram_table->iir_curve[0] = 0x65; 2144 ram_table->iir_curve[1] = 0x65; 2145 ram_table->iir_curve[2] = 0x65; 2146 ram_table->iir_curve[3] = 0x65; 2147 ram_table->iir_curve[4] = 0x65; 2148 2149 //Gamma 2.2 2150 ram_table->crgb_thresh[0] = bswap16_based_on_endian(big_endian, 0x127c); 2151 ram_table->crgb_thresh[1] = bswap16_based_on_endian(big_endian, 0x151b); 2152 ram_table->crgb_thresh[2] = bswap16_based_on_endian(big_endian, 0x17d5); 2153 ram_table->crgb_thresh[3] = bswap16_based_on_endian(big_endian, 0x1a56); 2154 ram_table->crgb_thresh[4] = bswap16_based_on_endian(big_endian, 0x1c83); 2155 ram_table->crgb_thresh[5] = bswap16_based_on_endian(big_endian, 0x1e72); 2156 ram_table->crgb_thresh[6] = bswap16_based_on_endian(big_endian, 0x20f0); 2157 ram_table->crgb_thresh[7] = bswap16_based_on_endian(big_endian, 0x232b); 2158 ram_table->crgb_offset[0] = bswap16_based_on_endian(big_endian, 0x2999); 2159 ram_table->crgb_offset[1] = bswap16_based_on_endian(big_endian, 0x3999); 2160 ram_table->crgb_offset[2] = bswap16_based_on_endian(big_endian, 0x4666); 2161 ram_table->crgb_offset[3] = bswap16_based_on_endian(big_endian, 0x5999); 2162 ram_table->crgb_offset[4] = bswap16_based_on_endian(big_endian, 0x6333); 2163 ram_table->crgb_offset[5] = bswap16_based_on_endian(big_endian, 0x7800); 2164 ram_table->crgb_offset[6] = bswap16_based_on_endian(big_endian, 0x8c00); 2165 ram_table->crgb_offset[7] = bswap16_based_on_endian(big_endian, 0xa000); 2166 ram_table->crgb_slope[0] = bswap16_based_on_endian(big_endian, 0x3609); 2167 ram_table->crgb_slope[1] = bswap16_based_on_endian(big_endian, 0x2dfa); 2168 ram_table->crgb_slope[2] = bswap16_based_on_endian(big_endian, 0x27ea); 2169 ram_table->crgb_slope[3] = bswap16_based_on_endian(big_endian, 0x235d); 2170 ram_table->crgb_slope[4] = bswap16_based_on_endian(big_endian, 0x2042); 2171 ram_table->crgb_slope[5] = bswap16_based_on_endian(big_endian, 0x1dc3); 2172 ram_table->crgb_slope[6] = bswap16_based_on_endian(big_endian, 0x1b1a); 2173 ram_table->crgb_slope[7] = bswap16_based_on_endian(big_endian, 0x1910); 2174 2175 fill_backlight_transform_table_v_2_2( 2176 params, ram_table, big_endian); 2177 } 2178 2179 bool dmub_init_abm_config(struct resource_pool *res_pool, 2180 struct dmcu_iram_parameters params, 2181 unsigned int inst) 2182 { 2183 struct iram_table_v_2_2 ram_table; 2184 struct abm_config_table config; 2185 unsigned int set = params.set; 2186 bool result = false; 2187 uint32_t i, j = 0; 2188 2189 if (res_pool->abm == NULL && res_pool->multiple_abms[inst] == NULL) 2190 return false; 2191 2192 memset(&ram_table, 0, sizeof(ram_table)); 2193 memset(&config, 0, sizeof(config)); 2194 2195 fill_iram_v_2_3(&ram_table, params, false); 2196 2197 // We must copy to structure that is aligned to 32-bit 2198 for (i = 0; i < NUM_POWER_FN_SEGS; i++) { 2199 config.crgb_thresh[i] = ram_table.crgb_thresh[i]; 2200 config.crgb_offset[i] = ram_table.crgb_offset[i]; 2201 config.crgb_slope[i] = ram_table.crgb_slope[i]; 2202 } 2203 2204 for (i = 0; i < NUM_BL_CURVE_SEGS; i++) { 2205 config.backlight_thresholds[i] = ram_table.backlight_thresholds[i]; 2206 config.backlight_offsets[i] = ram_table.backlight_offsets[i]; 2207 } 2208 2209 for (i = 0; i < NUM_AMBI_LEVEL; i++) 2210 config.iir_curve[i] = ram_table.iir_curve[i]; 2211 2212 for (i = 0; i < NUM_AMBI_LEVEL; i++) { 2213 for (j = 0; j < NUM_AGGR_LEVEL; j++) { 2214 config.min_reduction[i][j] = ram_table.min_reduction[i][j]; 2215 config.max_reduction[i][j] = ram_table.max_reduction[i][j]; 2216 config.bright_pos_gain[i][j] = ram_table.bright_pos_gain[i][j]; 2217 config.dark_pos_gain[i][j] = ram_table.dark_pos_gain[i][j]; 2218 } 2219 } 2220 2221 for (i = 0; i < NUM_AGGR_LEVEL; i++) { 2222 config.hybrid_factor[i] = ram_table.hybrid_factor[i]; 2223 config.contrast_factor[i] = ram_table.contrast_factor[i]; 2224 config.deviation_gain[i] = ram_table.deviation_gain[i]; 2225 config.min_knee[i] = ram_table.min_knee[i]; 2226 config.max_knee[i] = ram_table.max_knee[i]; 2227 } 2228 2229 if (params.backlight_ramping_override) { 2230 2231 ASSERT(params.backlight_ramping_reduction <= 0xFFFF); 2232 ASSERT(params.backlight_ramping_start <= 0xFFFF); 2233 for (i = 0; i < NUM_AGGR_LEVEL; i++) { 2234 config.blRampReduction[i] = (uint16_t)params.backlight_ramping_reduction; 2235 config.blRampStart[i] = (uint16_t)params.backlight_ramping_start; 2236 } 2237 } else { 2238 for (i = 0; i < NUM_AGGR_LEVEL; i++) { 2239 config.blRampReduction[i] = abm_settings[set][i].blRampReduction; 2240 config.blRampStart[i] = abm_settings[set][i].blRampStart; 2241 } 2242 } 2243 2244 config.min_abm_backlight = ram_table.min_abm_backlight; 2245 2246 if (res_pool->multiple_abms[inst]) { 2247 result = res_pool->multiple_abms[inst]->funcs->init_abm_config( 2248 res_pool->multiple_abms[inst], (char *)(&config), sizeof(struct abm_config_table), inst); 2249 } else 2250 result = res_pool->abm->funcs->init_abm_config( 2251 res_pool->abm, (char *)(&config), sizeof(struct abm_config_table), 0); 2252 2253 return result; 2254 } 2255 2256 bool dmub_is_abm_supported(struct resource_pool *res_pool, unsigned int inst) 2257 { 2258 2259 if (res_pool->abm == NULL && res_pool->multiple_abms[inst] == NULL) 2260 return false; 2261 2262 return true; 2263 } 2264 2265 bool dmub_set_abm_event(struct resource_pool *res_pool, 2266 unsigned int full_screen, unsigned int trans_info, 2267 unsigned int hdr_mode, unsigned int scaling_enable, unsigned int scaling_strength_map, 2268 unsigned int inst) 2269 { 2270 bool result = false; 2271 2272 if (res_pool->abm == NULL && res_pool->multiple_abms[inst] == NULL) 2273 return false; 2274 2275 if (res_pool->multiple_abms[inst]) { 2276 if (res_pool->multiple_abms[inst]->funcs->set_abm_event) 2277 result = res_pool->multiple_abms[inst]->funcs->set_abm_event( 2278 res_pool->multiple_abms[inst], full_screen, trans_info, 2279 hdr_mode, scaling_enable, scaling_strength_map, inst); 2280 } else { 2281 if (res_pool->abm->funcs->set_abm_event) 2282 result = res_pool->abm->funcs->set_abm_event( 2283 res_pool->abm, full_screen, trans_info, 2284 hdr_mode, scaling_enable, scaling_strength_map, inst); 2285 } 2286 2287 return result; 2288 } 2289 2290 bool dmub_set_abm_strength(struct resource_pool *res_pool, 2291 unsigned int strength, 2292 unsigned int inst) 2293 { 2294 bool result = false; 2295 2296 if (res_pool->abm == NULL && res_pool->multiple_abms[inst] == NULL) 2297 return false; 2298 2299 if (res_pool->multiple_abms[inst]) { 2300 if (res_pool->multiple_abms[inst]->funcs->set_abm_level) 2301 result = res_pool->multiple_abms[inst]->funcs->set_abm_level( 2302 res_pool->multiple_abms[inst], strength); 2303 } else { 2304 if (res_pool->abm->funcs->set_abm_level) 2305 result = res_pool->abm->funcs->set_abm_level( 2306 res_pool->abm, strength); 2307 } 2308 2309 return result; 2310 } 2311 2312 bool dmcu_load_iram(struct dmcu *dmcu, 2313 struct dmcu_iram_parameters params) 2314 { 2315 unsigned char ram_table[IRAM_SIZE]; 2316 bool result = false; 2317 2318 if (dmcu == NULL) 2319 return false; 2320 2321 if (dmcu && !dmcu->funcs->is_dmcu_initialized(dmcu)) 2322 return true; 2323 2324 memset(&ram_table, 0, sizeof(ram_table)); 2325 2326 if (dmcu->dmcu_version.abm_version == 0x24) { 2327 fill_iram_v_2_3((struct iram_table_v_2_2 *)ram_table, params, true); 2328 result = dmcu->funcs->load_iram(dmcu, 0, (char *)(&ram_table), 2329 IRAM_RESERVE_AREA_START_V2_2); 2330 } else if (dmcu->dmcu_version.abm_version == 0x23) { 2331 fill_iram_v_2_3((struct iram_table_v_2_2 *)ram_table, params, true); 2332 2333 result = dmcu->funcs->load_iram( 2334 dmcu, 0, (char *)(&ram_table), IRAM_RESERVE_AREA_START_V2_2); 2335 } else if (dmcu->dmcu_version.abm_version == 0x22) { 2336 fill_iram_v_2_2((struct iram_table_v_2_2 *)ram_table, params); 2337 2338 result = dmcu->funcs->load_iram( 2339 dmcu, 0, (char *)(&ram_table), IRAM_RESERVE_AREA_START_V2_2); 2340 } else { 2341 fill_iram_v_2((struct iram_table_v_2 *)ram_table, params); 2342 2343 result = dmcu->funcs->load_iram( 2344 dmcu, 0, (char *)(&ram_table), IRAM_RESERVE_AREA_START_V2); 2345 2346 if (result) 2347 result = dmcu->funcs->load_iram( 2348 dmcu, IRAM_RESERVE_AREA_END_V2 + 1, 2349 (char *)(&ram_table) + IRAM_RESERVE_AREA_END_V2 + 1, 2350 sizeof(ram_table) - IRAM_RESERVE_AREA_END_V2 - 1); 2351 } 2352 2353 return result; 2354 } 2355 2356 bool fill_custom_backlight_caps(unsigned int config_no, struct dm_acpi_atif_backlight_caps *caps) 2357 { 2358 unsigned int data_points_size; 2359 uint64_t caps_size; 2360 2361 if (config_no >= ARRAY_SIZE(custom_backlight_profiles)) 2362 return false; 2363 2364 data_points_size = custom_backlight_profiles[config_no].num_data_points 2365 * sizeof(custom_backlight_profiles[config_no].data_points[0]); 2366 2367 caps_size = sizeof(struct dm_acpi_atif_backlight_caps) - sizeof(caps->data_points) + data_points_size; 2368 ASSERT(caps_size <= 0xFFFF); 2369 caps->size = (uint16_t)caps_size; 2370 caps->flags = 0; 2371 caps->error_code = 0; 2372 caps->ac_level_percentage = custom_backlight_profiles[config_no].ac_level_percentage; 2373 caps->dc_level_percentage = custom_backlight_profiles[config_no].dc_level_percentage; 2374 caps->min_input_signal = custom_backlight_profiles[config_no].min_input_signal; 2375 caps->max_input_signal = custom_backlight_profiles[config_no].max_input_signal; 2376 caps->num_data_points = (uint8_t)custom_backlight_profiles[config_no].num_data_points; 2377 memcpy(caps->data_points, custom_backlight_profiles[config_no].data_points, data_points_size); 2378 return true; 2379 } 2380