/**
 * Copyright 2013-2022 Software Radio Systems Limited
 *
 * This file is part of srsRAN.
 *
 * srsRAN is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * srsRAN 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 Affero General Public License for more details.
 *
 * A copy of the GNU Affero General Public License can be found in
 * the LICENSE file in the top-level directory of this distribution
 * and at http://www.gnu.org/licenses/.
 *
 */

#ifndef SRSRAN_BSR_NR_H
#define SRSRAN_BSR_NR_H

#include <stdint.h>

/**
 * @brief  Buffer size format definition and levels according to 3GPP TS 38.321 version 15.3.0
 *
 * Shared between UE and gNB MAC layers
 */

namespace srsran {

// TS 38.321 Sec 6.1.3.1
typedef enum { SHORT_BSR, LONG_BSR, SHORT_TRUNC_BSR, LONG_TRUNC_BSR } bsr_format_nr_t;

// TS 38.321, Table 6.1.3.1-1 Buffer size levels (in bytes) for 5-bit Buffer Size field, all values <= except marked
static const uint32_t buffer_size_levels_5bit_max_idx                              = 31;
static uint32_t       buffer_size_levels_5bit[buffer_size_levels_5bit_max_idx + 1] = {
    /* == */ 0, 10,    14,    20,    28,    38,    53,    74,     102,    142,           198,
    276,        384,   535,   745,   1038,  1446,  2014,  2806,   3909,   5446,          7587,
    10570,      14726, 20516, 28581, 39818, 55474, 77284, 107669, 150000, /* > */ 150000};

// TS 38.321, Table 6.1.3.1-2: Buffer size levels (in bytes) for 8-bit Buffer Size field, all values <= except marked
static const uint32_t buffer_size_levels_8bit_max_idx                              = 254;
static uint32_t       buffer_size_levels_8bit[buffer_size_levels_8bit_max_idx + 1] = {
    /* == */ 0, 10,       11,       12,       13,
    14,         15,       16,       17,       18,
    19,         20,       22,       23,       25,
    26,         28,       30,       32,       34,
    36,         38,       40,       43,       46,
    49,         52,       55,       59,       62,
    66,         71,       75,       80,       85,
    91,         97,       103,      110,      117,
    124,        132,      141,      150,      160,
    170,        181,      193,      205,      218,
    233,        248,      264,      281,      299,
    318,        339,      361,      384,      409,
    436,        464,      494,      526,      560,
    597,        635,      677,      720,      767,
    817,        870,      926,      987,      1051,
    1119,       1191,     1269,     1351,     1439,
    1532,       1631,     1737,     1850,     1970,
    2098,       2234,     2379,     2533,     2698,
    2873,       3059,     3258,     3469,     3694,
    3934,       4189,     4461,     4751,     5059,
    5387,       5737,     6109,     6506,     6928,
    7378,       7857,     8367,     8910,     9488,
    10104,      10760,    11458,    12202,    12994,
    13838,      14736,    15692,    16711,    17795,
    18951,      20181,    21491,    22885,    24371,
    25953,      27638,    29431,    31342,    33376,
    35543,      37850,    40307,    42923,    45709,
    48676,      51836,    55200,    58784,    62599,
    66663,      70990,    75598,    80505,    85730,
    91295,      97221,    103532,   110252,   117409,
    125030,     133146,   141789,   150992,   160793,
    171231,     182345,   194182,   206786,   220209,
    234503,     249725,   265935,   283197,   301579,
    321155,     342002,   364202,   387842,   413018,
    439827,     468377,   498780,   531156,   565634,
    602350,     641449,   683087,   727427,   774645,
    824928,     878475,   935498,   996222,   1060888,
    1129752,    1203085,  1281179,  1364342,  1452903,
    1547213,    1647644,  1754595,  1868488,  1989774,
    2118933,    2256475,  2402946,  2558924,  2725027,
    2901912,    3090279,  3290873,  3504487,  3731968,
    3974215,    4232186,  4506902,  4799451,  5110989,
    5442750,    5796046,  6172275,  6572925,  6999582,
    7453933,    7937777,  8453028,  9001725,  9586039,
    10208280,   10870913, 11576557, 12328006, 13128233,
    13980403,   14887889, 15854280, 16883401, 17979324,
    19146385,   20389201, 21712690, 23122088, 24622972,
    26221280,   27923336, 29735875, 31666069, 33721553,
    35910462,   38241455, 40723756, 43367187, 46182206,
    49179951,   52372284, 55771835, 59392055, 63247269,
    67352729,   71724679, 76380419, 81338368, /* > */ 81338368};

} // namespace srsran

#endif // SRSRAN_BSR_NR_H