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-rw-r--r--libosmocore/src/gsm_utils.c376
1 files changed, 0 insertions, 376 deletions
diff --git a/libosmocore/src/gsm_utils.c b/libosmocore/src/gsm_utils.c
deleted file mode 100644
index b392fd37c..000000000
--- a/libosmocore/src/gsm_utils.c
+++ /dev/null
@@ -1,376 +0,0 @@
-/*
- * (C) 2008 by Daniel Willmann <daniel@totalueberwachung.de>
- * (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
- * (C) 2009-2010 by Harald Welte <laforge@gnumonks.org>
- *
- * All Rights Reserved
- *
- * 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.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-//#include <openbsc/gsm_data.h>
-#include <osmocore/utils.h>
-#include <osmocore/gsm_utils.h>
-
-#include <stdlib.h>
-#include <stdint.h>
-#include <string.h>
-#include <stdio.h>
-#include <errno.h>
-#include <ctype.h>
-
-#include "../config.h"
-
-/* GSM 03.38 6.2.1 Charachter packing */
-int gsm_7bit_decode(char *text, const uint8_t *user_data, uint8_t length)
-{
- int i = 0;
- int l = 0;
-
- /* FIXME: We need to account for user data headers here */
- i += l;
- for (; i < length; i ++)
- *(text ++) =
- ((user_data[(i * 7 + 7) >> 3] <<
- (7 - ((i * 7 + 7) & 7))) |
- (user_data[(i * 7) >> 3] >>
- ((i * 7) & 7))) & 0x7f;
- *text = '\0';
-
- return i - l;
-}
-
-
-/* GSM 03.38 6.2.1 Charachter packing */
-int gsm_7bit_encode(uint8_t *result, const char *data)
-{
- int i,j = 0;
- unsigned char ch1, ch2;
- int shift = 0;
-
- for ( i=0; i<strlen(data); i++ ) {
-
- ch1 = data[i] & 0x7F;
- ch1 = ch1 >> shift;
- ch2 = data[(i+1)] & 0x7F;
- ch2 = ch2 << (7-shift);
-
- ch1 = ch1 | ch2;
-
- result[j++] = ch1;
-
- shift++;
-
- if ((shift == 7) && (i+1<strlen(data))) {
- shift = 0;
- i++;
- }
- }
-
- return i;
-}
-
-/* determine power control level for given dBm value, as indicated
- * by the tables in chapter 4.1.1 of GSM TS 05.05 */
-int ms_pwr_ctl_lvl(enum gsm_band band, unsigned int dbm)
-{
- switch (band) {
- case GSM_BAND_450:
- case GSM_BAND_480:
- case GSM_BAND_750:
- case GSM_BAND_900:
- case GSM_BAND_810:
- case GSM_BAND_850:
- if (dbm >= 39)
- return 0;
- else if (dbm < 5)
- return 19;
- else {
- /* we are guaranteed to have (5 <= dbm < 39) */
- return 2 + ((39 - dbm) / 2);
- }
- break;
- case GSM_BAND_1800:
- if (dbm >= 36)
- return 29;
- else if (dbm >= 34)
- return 30;
- else if (dbm >= 32)
- return 31;
- else if (dbm == 31)
- return 0;
- else {
- /* we are guaranteed to have (0 <= dbm < 31) */
- return (30 - dbm) / 2;
- }
- break;
- case GSM_BAND_1900:
- if (dbm >= 33)
- return 30;
- else if (dbm >= 32)
- return 31;
- else if (dbm == 31)
- return 0;
- else {
- /* we are guaranteed to have (0 <= dbm < 31) */
- return (30 - dbm) / 2;
- }
- break;
- }
- return -EINVAL;
-}
-
-int ms_pwr_dbm(enum gsm_band band, uint8_t lvl)
-{
- lvl &= 0x1f;
-
- switch (band) {
- case GSM_BAND_450:
- case GSM_BAND_480:
- case GSM_BAND_750:
- case GSM_BAND_900:
- case GSM_BAND_810:
- case GSM_BAND_850:
- if (lvl < 2)
- return 39;
- else if (lvl < 20)
- return 39 - ((lvl - 2) * 2) ;
- else
- return 5;
- break;
- case GSM_BAND_1800:
- if (lvl < 16)
- return 30 - (lvl * 2);
- else if (lvl < 29)
- return 0;
- else
- return 36 - ((lvl - 29) * 2);
- break;
- case GSM_BAND_1900:
- if (lvl < 16)
- return 30 - (lvl * 2);
- else if (lvl < 30)
- return -EINVAL;
- else
- return 33 - (lvl - 30);
- break;
- }
- return -EINVAL;
-}
-
-/* According to TS 08.05 Chapter 8.1.4 */
-int rxlev2dbm(uint8_t rxlev)
-{
- if (rxlev > 63)
- rxlev = 63;
-
- return -110 + rxlev;
-}
-
-/* According to TS 08.05 Chapter 8.1.4 */
-uint8_t dbm2rxlev(int dbm)
-{
- int rxlev = dbm + 110;
-
- if (rxlev > 63)
- rxlev = 63;
- else if (rxlev < 0)
- rxlev = 0;
-
- return rxlev;
-}
-
-const char *gsm_band_name(enum gsm_band band)
-{
- switch (band) {
- case GSM_BAND_450:
- return "GSM450";
- case GSM_BAND_480:
- return "GSM450";
- case GSM_BAND_750:
- return "GSM750";
- case GSM_BAND_810:
- return "GSM810";
- case GSM_BAND_850:
- return "GSM850";
- case GSM_BAND_900:
- return "GSM900";
- case GSM_BAND_1800:
- return "DCS1800";
- case GSM_BAND_1900:
- return "PCS1900";
- }
- return "invalid";
-}
-
-enum gsm_band gsm_band_parse(const char* mhz)
-{
- while (*mhz && !isdigit(*mhz))
- mhz++;
-
- if (*mhz == '\0')
- return -EINVAL;
-
- switch (strtol(mhz, NULL, 10)) {
- case 450:
- return GSM_BAND_450;
- case 480:
- return GSM_BAND_480;
- case 750:
- return GSM_BAND_750;
- case 810:
- return GSM_BAND_810;
- case 850:
- return GSM_BAND_850;
- case 900:
- return GSM_BAND_900;
- case 1800:
- return GSM_BAND_1800;
- case 1900:
- return GSM_BAND_1900;
- default:
- return -EINVAL;
- }
-}
-
-
-#ifdef HAVE_EXECINFO_H
-#include <execinfo.h>
-void generate_backtrace()
-{
- int i, nptrs;
- void *buffer[100];
- char **strings;
-
- nptrs = backtrace(buffer, ARRAY_SIZE(buffer));
- printf("backtrace() returned %d addresses\n", nptrs);
-
- strings = backtrace_symbols(buffer, nptrs);
- if (!strings)
- return;
-
- for (i = 1; i < nptrs; i++)
- printf("%s\n", strings[i]);
-
- free(strings);
-}
-#endif
-
-enum gsm_band gsm_arfcn2band(uint16_t arfcn)
-{
- if (arfcn & ARFCN_PCS)
- return GSM_BAND_1900;
- else if (arfcn <= 124)
- return GSM_BAND_900;
- else if (arfcn >= 955 && arfcn <= 1023)
- return GSM_BAND_900;
- else if (arfcn >= 128 && arfcn <= 251)
- return GSM_BAND_850;
- else if (arfcn >= 512 && arfcn <= 885)
- return GSM_BAND_1800;
- else if (arfcn >= 259 && arfcn <= 293)
- return GSM_BAND_450;
- else if (arfcn >= 306 && arfcn <= 340)
- return GSM_BAND_480;
- else if (arfcn >= 350 && arfcn <= 425)
- return GSM_BAND_810;
- else if (arfcn >= 438 && arfcn <= 511)
- return GSM_BAND_750;
- else
- return GSM_BAND_1800;
-}
-
-/* Convert an ARFCN to the frequency in MHz * 10 */
-uint16_t gsm_arfcn2freq10(uint16_t arfcn, int uplink)
-{
- uint16_t freq10_ul;
- uint16_t freq10_dl;
-
- if (arfcn & ARFCN_PCS) {
- /* DCS 1900 */
- arfcn &= ~ARFCN_PCS;
- freq10_ul = 18502 + 2 * (arfcn-512);
- freq10_dl = freq10_ul + 800;
- } else if (arfcn <= 124) {
- /* Primary GSM + ARFCN 0 of E-GSM */
- freq10_ul = 8900 + 2 * arfcn;
- freq10_dl = freq10_ul + 450;
- } else if (arfcn >= 955 && arfcn <= 1023) {
- /* E-GSM and R-GSM */
- freq10_ul = 8900 + 2 * (arfcn - 1024);
- freq10_dl = freq10_ul + 450;
- } else if (arfcn >= 128 && arfcn <= 251) {
- /* GSM 850 */
- freq10_ul = 8242 + 2 * (arfcn - 128);
- freq10_dl = freq10_ul + 450;
- } else if (arfcn >= 512 && arfcn <= 885) {
- /* DCS 1800 */
- freq10_ul = 17102 + 2 * (arfcn - 512);
- freq10_dl = freq10_ul + 950;
- } else if (arfcn >= 259 && arfcn <= 293) {
- /* GSM 450 */
- freq10_ul = 4506 + 2 * (arfcn - 259);
- freq10_dl = freq10_ul + 100;
- } else if (arfcn >= 306 && arfcn <= 340) {
- /* GSM 480 */
- freq10_ul = 4790 + 2 * (arfcn - 306);
- freq10_dl = freq10_ul + 100;
- } else if (arfcn >= 350 && arfcn <= 425) {
- /* GSM 810 */
- freq10_ul = 8060 + 2 * (arfcn - 350);
- freq10_dl = freq10_ul + 450;
- } else if (arfcn >= 438 && arfcn <= 511) {
- /* GSM 750 */
- freq10_ul = 7472 + 2 * (arfcn - 438);
- freq10_dl = freq10_ul + 300;
- } else
- return 0xffff;
-
- if (uplink)
- return freq10_ul;
- else
- return freq10_dl;
-}
-
-void gsm_fn2gsmtime(struct gsm_time *time, uint32_t fn)
-{
- time->fn = fn;
- time->t1 = time->fn / (26*51);
- time->t2 = time->fn % 26;
- time->t3 = time->fn % 51;
- time->tc = (time->fn / 51) % 8;
-}
-
-uint32_t gsm_gsmtime2fn(struct gsm_time *time)
-{
- /* TS 05.02 Chapter 4.3.3 TDMA frame number */
- return (51 * ((time->t3 - time->t2 + 26) % 26) + time->t3 + (26 * 51 * time->t1));
-}
-
-/* TS 03.03 Chapter 2.6 */
-int gprs_tlli_type(uint32_t tlli)
-{
- if ((tlli & 0xc0000000) == 0xc0000000)
- return TLLI_LOCAL;
- else if ((tlli & 0xc0000000) == 0x80000000)
- return TLLI_FOREIGN;
- else if ((tlli & 0xf8000000) == 0x78000000)
- return TLLI_RANDOM;
- else if ((tlli & 0xf8000000) == 0x70000000)
- return TLLI_AUXILIARY;
-
- return TLLI_RESERVED;
-}
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