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/* mslot_class.c
*
* Copyright (C) 2012 Ivan Klyuchnikov
* Copyright (C) 2012 Andreas Eversberg <jolly@eversberg.eu>
* Copyright (C) 2013 by Holger Hans Peter Freyther
* Copyright (C) 2017 by sysmocom - s.f.m.c. GmbH <info@sysmocom.de>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <mslot_class.h>
#include <osmocom/core/utils.h>
#include <osmocom/core/logging.h>
#include <errno.h>
/* 3GPP TS 05.02 Annex B.1 */
struct gprs_ms_multislot_class {
uint8_t rx, tx, sum; /* Maximum Number of Slots: RX, Tx, Sum Rx+Tx */
uint8_t ta, tb, ra, rb; /* Minimum Number of Slots */
uint8_t type; /* Type of Mobile */
};
static const struct gprs_ms_multislot_class gprs_ms_multislot_class[32] = {
/* M-S Class | Max # of slots | Min # of slots | Type */
/* | Rx Tx Sum | Tta Ttb Tra Trb | */
/* N/A */ { MS_NA, MS_NA, MS_NA, MS_NA, MS_NA, MS_NA, MS_NA, MS_NA },
/* 1 */ { 1, 1, 2, 3, 2, 4, 2, 1 },
/* 2 */ { 2, 1, 3, 3, 2, 3, 1, 1 },
/* 3 */ { 2, 2, 3, 3, 2, 3, 1, 1 },
/* 4 */ { 3, 1, 4, 3, 1, 3, 1, 1 },
/* 5 */ { 2, 2, 4, 3, 1, 3, 1, 1 },
/* 6 */ { 3, 2, 4, 3, 1, 3, 1, 1 },
/* 7 */ { 3, 3, 4, 3, 1, 3, 1, 1 },
/* 8 */ { 4, 1, 5, 3, 1, 2, 1, 1 },
/* 9 */ { 3, 2, 5, 3, 1, 2, 1, 1 },
/* 10 */ { 4, 2, 5, 3, 1, 2, 1, 1 },
/* 11 */ { 4, 3, 5, 3, 1, 2, 1, 1 },
/* 12 */ { 4, 4, 5, 2, 1, 2, 1, 1 },
/* 13 */ { 3, 3, MS_NA, MS_NA, MS_A, 3, MS_A, 2 },
/* 14 */ { 4, 4, MS_NA, MS_NA, MS_A, 3, MS_A, 2 },
/* 15 */ { 5, 5, MS_NA, MS_NA, MS_A, 3, MS_A, 2 },
/* 16 */ { 6, 6, MS_NA, MS_NA, MS_A, 2, MS_A, 2 },
/* 17 */ { 7, 7, MS_NA, MS_NA, MS_A, 1, 0, 2 },
/* 18 */ { 8, 8, MS_NA, MS_NA, 0, 0, 0, 2 },
/* 19 */ { 6, 2, MS_NA, 3, MS_B, 2, MS_C, 1 },
/* 20 */ { 6, 3, MS_NA, 3, MS_B, 2, MS_C, 1 },
/* 21 */ { 6, 4, MS_NA, 3, MS_B, 2, MS_C, 1 },
/* 22 */ { 6, 4, MS_NA, 2, MS_B, 2, MS_C, 1 },
/* 23 */ { 6, 6, MS_NA, 2, MS_B, 2, MS_C, 1 },
/* 24 */ { 8, 2, MS_NA, 3, MS_B, 2, MS_C, 1 },
/* 25 */ { 8, 3, MS_NA, 3, MS_B, 2, MS_C, 1 },
/* 26 */ { 8, 4, MS_NA, 3, MS_B, 2, MS_C, 1 },
/* 27 */ { 8, 4, MS_NA, 2, MS_B, 2, MS_C, 1 },
/* 28 */ { 8, 6, MS_NA, 2, MS_B, 2, MS_C, 1 },
/* 29 */ { 8, 8, MS_NA, 2, MS_B, 2, MS_C, 1 },
/* N/A */ { MS_NA,MS_NA, MS_NA, MS_NA, MS_NA, MS_NA, MS_NA, MS_NA },
/* N/A */ { MS_NA,MS_NA, MS_NA, MS_NA, MS_NA, MS_NA, MS_NA, MS_NA },
};
static inline const struct gprs_ms_multislot_class *get_mslot_table(uint8_t ms_cl)
{
uint8_t index = ms_cl ? ms_cl : DEFAULT_MSLOT_CLASS;
if (ms_cl >= ARRAY_SIZE(gprs_ms_multislot_class))
index = 0;
return &gprs_ms_multislot_class[index];
}
uint8_t mslot_class_get_ta(uint8_t ms_cl)
{
return get_mslot_table(ms_cl)->ta;
}
/* TODO: Set it to 1 if FH is implemented and enabled
* MS_A and MS_B are 0 iff FH is disabled and there is no Tx/Rx change.
* This is never the case with the current implementation, so 1 will always be used. */
uint8_t mslot_class_get_tb(uint8_t ms_cl)
{
const struct gprs_ms_multislot_class *t = get_mslot_table(ms_cl);
switch (t->tb) {
case MS_A:
return 0;
case MS_B:
return 1;
default:
return t->tb;
}
}
uint8_t mslot_class_get_ra(uint8_t ms_cl)
{
return get_mslot_table(ms_cl)->ra;
}
uint8_t mslot_class_get_rb(uint8_t ms_cl)
{
const struct gprs_ms_multislot_class *t = get_mslot_table(ms_cl);
switch (t->rb) {
case MS_A:
return 0;
case MS_C:
return 1;
default:
return t->rb;
}
}
uint8_t mslot_class_get_tx(uint8_t ms_cl)
{
return get_mslot_table(ms_cl)->tx;
}
uint8_t mslot_class_get_rx(uint8_t ms_cl)
{
return get_mslot_table(ms_cl)->rx;
}
uint8_t mslot_class_get_sum(uint8_t ms_cl)
{
return get_mslot_table(ms_cl)->sum;
}
uint8_t mslot_class_get_type(uint8_t ms_cl)
{
return get_mslot_table(ms_cl)->type;
}
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