| /* Copyright 2018 Advanced Micro Devices, Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| * |
| * Authors: AMD |
| * |
| */ |
| |
| #include "power_helpers.h" |
| #include "dc/inc/hw/dmcu.h" |
| |
| #define DIV_ROUNDUP(a, b) (((a)+((b)/2))/(b)) |
| |
| /* Possible Min Reduction config from least aggressive to most aggressive |
| * 0 1 2 3 4 5 6 7 8 9 10 11 12 |
| * 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 % |
| */ |
| static const unsigned char min_reduction_table[13] = { |
| 0xff, 0xfa, 0xf0, 0xf0, 0xd9, 0xcd, 0xc0, 0xb1, 0x99, 0x93, 0x80, 0x82, 0x66}; |
| |
| /* Possible Max Reduction configs from least aggressive to most aggressive |
| * 0 1 2 3 4 5 6 7 8 9 10 11 12 |
| * 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 % |
| */ |
| static const unsigned char max_reduction_table[13] = { |
| 0xf5, 0xe5, 0xd9, 0xcd, 0xb1, 0xa5, 0xa5, 0x80, 0x65, 0x4d, 0x4d, 0x4d, 0x32}; |
| |
| /* Predefined ABM configuration sets. We may have different configuration sets |
| * in order to satisfy different power/quality requirements. |
| */ |
| static const unsigned char abm_config[abm_defines_max_config][abm_defines_max_level] = { |
| /* ABM Level 1, ABM Level 2, ABM Level 3, ABM Level 4 */ |
| { 2, 5, 7, 8 }, /* Default - Medium aggressiveness */ |
| { 2, 5, 8, 11 }, /* Alt #1 - Increased aggressiveness */ |
| { 0, 2, 4, 8 }, /* Alt #2 - Minimal aggressiveness */ |
| { 3, 6, 10, 12 }, /* Alt #3 - Super aggressiveness */ |
| }; |
| |
| #define NUM_AMBI_LEVEL 5 |
| #define NUM_AGGR_LEVEL 4 |
| #define NUM_POWER_FN_SEGS 8 |
| #define NUM_BL_CURVE_SEGS 16 |
| |
| /* NOTE: iRAM is 256B in size */ |
| struct iram_table_v_2 { |
| /* flags */ |
| uint16_t flags; /* 0x00 U16 */ |
| |
| /* parameters for ABM2.0 algorithm */ |
| uint8_t min_reduction[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; /* 0x02 U0.8 */ |
| uint8_t max_reduction[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; /* 0x16 U0.8 */ |
| uint8_t bright_pos_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; /* 0x2a U2.6 */ |
| uint8_t bright_neg_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; /* 0x3e U2.6 */ |
| uint8_t dark_pos_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; /* 0x52 U2.6 */ |
| uint8_t dark_neg_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; /* 0x66 U2.6 */ |
| uint8_t iir_curve[NUM_AMBI_LEVEL]; /* 0x7a U0.8 */ |
| uint8_t deviation_gain; /* 0x7f U0.8 */ |
| |
| /* parameters for crgb conversion */ |
| uint16_t crgb_thresh[NUM_POWER_FN_SEGS]; /* 0x80 U3.13 */ |
| uint16_t crgb_offset[NUM_POWER_FN_SEGS]; /* 0x90 U1.15 */ |
| uint16_t crgb_slope[NUM_POWER_FN_SEGS]; /* 0xa0 U4.12 */ |
| |
| /* parameters for custom curve */ |
| /* thresholds for brightness --> backlight */ |
| uint16_t backlight_thresholds[NUM_BL_CURVE_SEGS]; /* 0xb0 U16.0 */ |
| /* offsets for brightness --> backlight */ |
| uint16_t backlight_offsets[NUM_BL_CURVE_SEGS]; /* 0xd0 U16.0 */ |
| |
| /* For reading PSR State directly from IRAM */ |
| uint8_t psr_state; /* 0xf0 */ |
| uint8_t dmcu_interface_version; /* 0xf1 */ |
| uint8_t dmcu_date_version_year_b0; /* 0xf2 */ |
| uint8_t dmcu_date_version_year_b1; /* 0xf3 */ |
| uint8_t dmcu_date_version_month; /* 0xf4 */ |
| uint8_t dmcu_date_version_day; /* 0xf5 */ |
| uint8_t dmcu_state; /* 0xf6 */ |
| |
| uint16_t blRampReduction; /* 0xf7 */ |
| uint16_t blRampStart; /* 0xf9 */ |
| uint8_t dummy5; /* 0xfb */ |
| uint8_t dummy6; /* 0xfc */ |
| uint8_t dummy7; /* 0xfd */ |
| uint8_t dummy8; /* 0xfe */ |
| uint8_t dummy9; /* 0xff */ |
| }; |
| |
| static uint16_t backlight_8_to_16(unsigned int backlight_8bit) |
| { |
| return (uint16_t)(backlight_8bit * 0x101); |
| } |
| |
| static void fill_backlight_transform_table(struct dmcu_iram_parameters params, |
| struct iram_table_v_2 *table) |
| { |
| unsigned int i; |
| unsigned int num_entries = NUM_BL_CURVE_SEGS; |
| unsigned int query_input_8bit; |
| unsigned int query_output_8bit; |
| unsigned int lut_index; |
| |
| table->backlight_thresholds[0] = 0; |
| table->backlight_offsets[0] = params.backlight_lut_array[0]; |
| table->backlight_thresholds[num_entries-1] = 0xFFFF; |
| table->backlight_offsets[num_entries-1] = |
| params.backlight_lut_array[params.backlight_lut_array_size - 1]; |
| |
| /* Setup all brightness levels between 0% and 100% exclusive |
| * Fills brightness-to-backlight transform table. Backlight custom curve |
| * describes transform from brightness to backlight. It will be defined |
| * as set of thresholds and set of offsets, together, implying |
| * extrapolation of custom curve into 16 uniformly spanned linear |
| * segments. Each threshold/offset represented by 16 bit entry in |
| * format U4.10. |
| */ |
| for (i = 1; i+1 < num_entries; i++) { |
| query_input_8bit = DIV_ROUNDUP((i * 256), num_entries); |
| |
| lut_index = (params.backlight_lut_array_size - 1) * i / (num_entries - 1); |
| ASSERT(lut_index < params.backlight_lut_array_size); |
| query_output_8bit = params.backlight_lut_array[lut_index] >> 8; |
| |
| table->backlight_thresholds[i] = |
| backlight_8_to_16(query_input_8bit); |
| table->backlight_offsets[i] = |
| backlight_8_to_16(query_output_8bit); |
| } |
| } |
| |
| bool dmcu_load_iram(struct dmcu *dmcu, |
| struct dmcu_iram_parameters params) |
| { |
| struct iram_table_v_2 ram_table; |
| unsigned int set = params.set; |
| |
| if (dmcu == NULL) |
| return false; |
| |
| if (!dmcu->funcs->is_dmcu_initialized(dmcu)) |
| return true; |
| |
| memset(&ram_table, 0, sizeof(ram_table)); |
| |
| ram_table.flags = 0x0; |
| ram_table.deviation_gain = 0xb3; |
| |
| ram_table.blRampReduction = |
| cpu_to_be16(params.backlight_ramping_reduction); |
| ram_table.blRampStart = |
| cpu_to_be16(params.backlight_ramping_start); |
| |
| ram_table.min_reduction[0][0] = min_reduction_table[abm_config[set][0]]; |
| ram_table.min_reduction[1][0] = min_reduction_table[abm_config[set][0]]; |
| ram_table.min_reduction[2][0] = min_reduction_table[abm_config[set][0]]; |
| ram_table.min_reduction[3][0] = min_reduction_table[abm_config[set][0]]; |
| ram_table.min_reduction[4][0] = min_reduction_table[abm_config[set][0]]; |
| ram_table.max_reduction[0][0] = max_reduction_table[abm_config[set][0]]; |
| ram_table.max_reduction[1][0] = max_reduction_table[abm_config[set][0]]; |
| ram_table.max_reduction[2][0] = max_reduction_table[abm_config[set][0]]; |
| ram_table.max_reduction[3][0] = max_reduction_table[abm_config[set][0]]; |
| ram_table.max_reduction[4][0] = max_reduction_table[abm_config[set][0]]; |
| |
| ram_table.min_reduction[0][1] = min_reduction_table[abm_config[set][1]]; |
| ram_table.min_reduction[1][1] = min_reduction_table[abm_config[set][1]]; |
| ram_table.min_reduction[2][1] = min_reduction_table[abm_config[set][1]]; |
| ram_table.min_reduction[3][1] = min_reduction_table[abm_config[set][1]]; |
| ram_table.min_reduction[4][1] = min_reduction_table[abm_config[set][1]]; |
| ram_table.max_reduction[0][1] = max_reduction_table[abm_config[set][1]]; |
| ram_table.max_reduction[1][1] = max_reduction_table[abm_config[set][1]]; |
| ram_table.max_reduction[2][1] = max_reduction_table[abm_config[set][1]]; |
| ram_table.max_reduction[3][1] = max_reduction_table[abm_config[set][1]]; |
| ram_table.max_reduction[4][1] = max_reduction_table[abm_config[set][1]]; |
| |
| ram_table.min_reduction[0][2] = min_reduction_table[abm_config[set][2]]; |
| ram_table.min_reduction[1][2] = min_reduction_table[abm_config[set][2]]; |
| ram_table.min_reduction[2][2] = min_reduction_table[abm_config[set][2]]; |
| ram_table.min_reduction[3][2] = min_reduction_table[abm_config[set][2]]; |
| ram_table.min_reduction[4][2] = min_reduction_table[abm_config[set][2]]; |
| ram_table.max_reduction[0][2] = max_reduction_table[abm_config[set][2]]; |
| ram_table.max_reduction[1][2] = max_reduction_table[abm_config[set][2]]; |
| ram_table.max_reduction[2][2] = max_reduction_table[abm_config[set][2]]; |
| ram_table.max_reduction[3][2] = max_reduction_table[abm_config[set][2]]; |
| ram_table.max_reduction[4][2] = max_reduction_table[abm_config[set][2]]; |
| |
| ram_table.min_reduction[0][3] = min_reduction_table[abm_config[set][3]]; |
| ram_table.min_reduction[1][3] = min_reduction_table[abm_config[set][3]]; |
| ram_table.min_reduction[2][3] = min_reduction_table[abm_config[set][3]]; |
| ram_table.min_reduction[3][3] = min_reduction_table[abm_config[set][3]]; |
| ram_table.min_reduction[4][3] = min_reduction_table[abm_config[set][3]]; |
| ram_table.max_reduction[0][3] = max_reduction_table[abm_config[set][3]]; |
| ram_table.max_reduction[1][3] = max_reduction_table[abm_config[set][3]]; |
| ram_table.max_reduction[2][3] = max_reduction_table[abm_config[set][3]]; |
| ram_table.max_reduction[3][3] = max_reduction_table[abm_config[set][3]]; |
| ram_table.max_reduction[4][3] = max_reduction_table[abm_config[set][3]]; |
| |
| ram_table.bright_pos_gain[0][0] = 0x20; |
| ram_table.bright_pos_gain[0][1] = 0x20; |
| ram_table.bright_pos_gain[0][2] = 0x20; |
| ram_table.bright_pos_gain[0][3] = 0x20; |
| ram_table.bright_pos_gain[1][0] = 0x20; |
| ram_table.bright_pos_gain[1][1] = 0x20; |
| ram_table.bright_pos_gain[1][2] = 0x20; |
| ram_table.bright_pos_gain[1][3] = 0x20; |
| ram_table.bright_pos_gain[2][0] = 0x20; |
| ram_table.bright_pos_gain[2][1] = 0x20; |
| ram_table.bright_pos_gain[2][2] = 0x20; |
| ram_table.bright_pos_gain[2][3] = 0x20; |
| ram_table.bright_pos_gain[3][0] = 0x20; |
| ram_table.bright_pos_gain[3][1] = 0x20; |
| ram_table.bright_pos_gain[3][2] = 0x20; |
| ram_table.bright_pos_gain[3][3] = 0x20; |
| ram_table.bright_pos_gain[4][0] = 0x20; |
| ram_table.bright_pos_gain[4][1] = 0x20; |
| ram_table.bright_pos_gain[4][2] = 0x20; |
| ram_table.bright_pos_gain[4][3] = 0x20; |
| ram_table.bright_neg_gain[0][1] = 0x00; |
| ram_table.bright_neg_gain[0][2] = 0x00; |
| ram_table.bright_neg_gain[0][3] = 0x00; |
| ram_table.bright_neg_gain[1][0] = 0x00; |
| ram_table.bright_neg_gain[1][1] = 0x00; |
| ram_table.bright_neg_gain[1][2] = 0x00; |
| ram_table.bright_neg_gain[1][3] = 0x00; |
| ram_table.bright_neg_gain[2][0] = 0x00; |
| ram_table.bright_neg_gain[2][1] = 0x00; |
| ram_table.bright_neg_gain[2][2] = 0x00; |
| ram_table.bright_neg_gain[2][3] = 0x00; |
| ram_table.bright_neg_gain[3][0] = 0x00; |
| ram_table.bright_neg_gain[3][1] = 0x00; |
| ram_table.bright_neg_gain[3][2] = 0x00; |
| ram_table.bright_neg_gain[3][3] = 0x00; |
| ram_table.bright_neg_gain[4][0] = 0x00; |
| ram_table.bright_neg_gain[4][1] = 0x00; |
| ram_table.bright_neg_gain[4][2] = 0x00; |
| ram_table.bright_neg_gain[4][3] = 0x00; |
| ram_table.dark_pos_gain[0][0] = 0x00; |
| ram_table.dark_pos_gain[0][1] = 0x00; |
| ram_table.dark_pos_gain[0][2] = 0x00; |
| ram_table.dark_pos_gain[0][3] = 0x00; |
| ram_table.dark_pos_gain[1][0] = 0x00; |
| ram_table.dark_pos_gain[1][1] = 0x00; |
| ram_table.dark_pos_gain[1][2] = 0x00; |
| ram_table.dark_pos_gain[1][3] = 0x00; |
| ram_table.dark_pos_gain[2][0] = 0x00; |
| ram_table.dark_pos_gain[2][1] = 0x00; |
| ram_table.dark_pos_gain[2][2] = 0x00; |
| ram_table.dark_pos_gain[2][3] = 0x00; |
| ram_table.dark_pos_gain[3][0] = 0x00; |
| ram_table.dark_pos_gain[3][1] = 0x00; |
| ram_table.dark_pos_gain[3][2] = 0x00; |
| ram_table.dark_pos_gain[3][3] = 0x00; |
| ram_table.dark_pos_gain[4][0] = 0x00; |
| ram_table.dark_pos_gain[4][1] = 0x00; |
| ram_table.dark_pos_gain[4][2] = 0x00; |
| ram_table.dark_pos_gain[4][3] = 0x00; |
| ram_table.dark_neg_gain[0][0] = 0x00; |
| ram_table.dark_neg_gain[0][1] = 0x00; |
| ram_table.dark_neg_gain[0][2] = 0x00; |
| ram_table.dark_neg_gain[0][3] = 0x00; |
| ram_table.dark_neg_gain[1][0] = 0x00; |
| ram_table.dark_neg_gain[1][1] = 0x00; |
| ram_table.dark_neg_gain[1][2] = 0x00; |
| ram_table.dark_neg_gain[1][3] = 0x00; |
| ram_table.dark_neg_gain[2][0] = 0x00; |
| ram_table.dark_neg_gain[2][1] = 0x00; |
| ram_table.dark_neg_gain[2][2] = 0x00; |
| ram_table.dark_neg_gain[2][3] = 0x00; |
| ram_table.dark_neg_gain[3][0] = 0x00; |
| ram_table.dark_neg_gain[3][1] = 0x00; |
| ram_table.dark_neg_gain[3][2] = 0x00; |
| ram_table.dark_neg_gain[3][3] = 0x00; |
| ram_table.dark_neg_gain[4][0] = 0x00; |
| ram_table.dark_neg_gain[4][1] = 0x00; |
| ram_table.dark_neg_gain[4][2] = 0x00; |
| ram_table.dark_neg_gain[4][3] = 0x00; |
| ram_table.iir_curve[0] = 0x65; |
| ram_table.iir_curve[1] = 0x65; |
| ram_table.iir_curve[2] = 0x65; |
| ram_table.iir_curve[3] = 0x65; |
| ram_table.iir_curve[4] = 0x65; |
| ram_table.crgb_thresh[0] = cpu_to_be16(0x13b6); |
| ram_table.crgb_thresh[1] = cpu_to_be16(0x1648); |
| ram_table.crgb_thresh[2] = cpu_to_be16(0x18e3); |
| ram_table.crgb_thresh[3] = cpu_to_be16(0x1b41); |
| ram_table.crgb_thresh[4] = cpu_to_be16(0x1d46); |
| ram_table.crgb_thresh[5] = cpu_to_be16(0x1f21); |
| ram_table.crgb_thresh[6] = cpu_to_be16(0x2167); |
| ram_table.crgb_thresh[7] = cpu_to_be16(0x2384); |
| ram_table.crgb_offset[0] = cpu_to_be16(0x2999); |
| ram_table.crgb_offset[1] = cpu_to_be16(0x3999); |
| ram_table.crgb_offset[2] = cpu_to_be16(0x4666); |
| ram_table.crgb_offset[3] = cpu_to_be16(0x5999); |
| ram_table.crgb_offset[4] = cpu_to_be16(0x6333); |
| ram_table.crgb_offset[5] = cpu_to_be16(0x7800); |
| ram_table.crgb_offset[6] = cpu_to_be16(0x8c00); |
| ram_table.crgb_offset[7] = cpu_to_be16(0xa000); |
| ram_table.crgb_slope[0] = cpu_to_be16(0x3147); |
| ram_table.crgb_slope[1] = cpu_to_be16(0x2978); |
| ram_table.crgb_slope[2] = cpu_to_be16(0x23a2); |
| ram_table.crgb_slope[3] = cpu_to_be16(0x1f55); |
| ram_table.crgb_slope[4] = cpu_to_be16(0x1c63); |
| ram_table.crgb_slope[5] = cpu_to_be16(0x1a0f); |
| ram_table.crgb_slope[6] = cpu_to_be16(0x178d); |
| ram_table.crgb_slope[7] = cpu_to_be16(0x15ab); |
| |
| fill_backlight_transform_table( |
| params, &ram_table); |
| |
| return dmcu->funcs->load_iram( |
| dmcu, 0, (char *)(&ram_table), sizeof(ram_table)); |
| } |
