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| /******************************************************************************
| *
| * Copyright(c) 2007 - 2017 Realtek Corporation.
| *
| * This program is free software; you can redistribute it and/or modify it
| * under the terms of version 2 of the GNU General Public License as
| * published by the Free Software Foundation.
| *
| * This program is distributed in the hope that it will be useful, but WITHOUT
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
| * more details.
| *
| *****************************************************************************/
|
| /* ************************************************************
| * include files
| * ************************************************************ */
|
| #include "mp_precomp.h"
| #include "phydm_precomp.h"
|
| const u16 db_invert_table[12][8] = {
| { 1, 1, 1, 2, 2, 2, 2, 3},
| { 3, 3, 4, 4, 4, 5, 6, 6},
| { 7, 8, 9, 10, 11, 13, 14, 16},
| { 18, 20, 22, 25, 28, 32, 35, 40},
| { 45, 50, 56, 63, 71, 79, 89, 100},
| { 112, 126, 141, 158, 178, 200, 224, 251},
| { 282, 316, 355, 398, 447, 501, 562, 631},
| { 708, 794, 891, 1000, 1122, 1259, 1413, 1585},
| { 1778, 1995, 2239, 2512, 2818, 3162, 3548, 3981},
| { 4467, 5012, 5623, 6310, 7079, 7943, 8913, 10000},
| { 11220, 12589, 14125, 15849, 17783, 19953, 22387, 25119},
| { 28184, 31623, 35481, 39811, 44668, 50119, 56234, 65535}
| };
|
|
| /*Y = 10*log(X)*/
| s32
| odm_pwdb_conversion(
| s32 X,
| u32 total_bit,
| u32 decimal_bit
| )
| {
| s32 Y, integer = 0, decimal = 0;
| u32 i;
|
| if (X == 0)
| X = 1; /* log2(x), x can't be 0 */
|
| for (i = (total_bit - 1); i > 0; i--) {
| if (X & BIT(i)) {
| integer = i;
| if (i > 0)
| decimal = (X & BIT(i - 1)) ? 2 : 0; /* decimal is 0.5dB*3=1.5dB~=2dB */
| break;
| }
| }
|
| Y = 3 * (integer - decimal_bit) + decimal; /* 10*log(x)=3*log2(x), */
|
| return Y;
| }
|
| s32
| odm_sign_conversion(
| s32 value,
| u32 total_bit
| )
| {
| if (value & BIT(total_bit - 1))
| value -= BIT(total_bit);
|
| return value;
| }
|
| void
| phydm_seq_sorting(
| void *p_dm_void,
| u32 *p_value,
| u32 *rank_idx,
| u32 *p_idx_out,
| u8 seq_length
| )
| {
| u8 i = 0, j = 0;
| u32 tmp_a, tmp_b;
| u32 tmp_idx_a, tmp_idx_b;
|
| for (i = 0; i < seq_length; i++) {
| rank_idx[i] = i;
| /**/
| }
|
| for (i = 0; i < (seq_length - 1); i++) {
|
| for (j = 0; j < (seq_length - 1 - i); j++) {
|
| tmp_a = p_value[j];
| tmp_b = p_value[j + 1];
|
| tmp_idx_a = rank_idx[j];
| tmp_idx_b = rank_idx[j + 1];
|
| if (tmp_a < tmp_b) {
| p_value[j] = tmp_b;
| p_value[j + 1] = tmp_a;
|
| rank_idx[j] = tmp_idx_b;
| rank_idx[j + 1] = tmp_idx_a;
| }
| }
| }
|
| for (i = 0; i < seq_length; i++) {
| p_idx_out[rank_idx[i]] = i + 1;
| /**/
| }
| }
|
| u32
| odm_convert_to_db(
| u32 value)
| {
| u8 i;
| u8 j;
| u32 dB;
|
| value = value & 0xFFFF;
|
| for (i = 0; i < 12; i++) {
| if (value <= db_invert_table[i][7])
| break;
| }
|
| if (i >= 12) {
| return 96; /* maximum 96 dB */
| }
|
| for (j = 0; j < 8; j++) {
| if (value <= db_invert_table[i][j])
| break;
| }
|
| dB = (i << 3) + j + 1;
|
| return dB;
| }
|
| u32
| odm_convert_to_linear(
| u32 value)
| {
| u8 i;
| u8 j;
| u32 linear;
|
| /* 1dB~96dB */
|
| value = value & 0xFF;
|
| i = (u8)((value - 1) >> 3);
| j = (u8)(value - 1) - (i << 3);
|
| linear = db_invert_table[i][j];
|
| return linear;
| }
|
|
|
