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Diffstat (limited to 'libosmocore/src/gsm_utils.c')
| -rw-r--r-- | libosmocore/src/gsm_utils.c | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/libosmocore/src/gsm_utils.c b/libosmocore/src/gsm_utils.c deleted file mode 100644 index b0a66a683..000000000 --- a/libosmocore/src/gsm_utils.c +++ /dev/null @@ -1,215 +0,0 @@ -/* - * (C) 2008 by Daniel Willmann <daniel@totalueberwachung.de> - * (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org> - * (C) 2009 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 "../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; -} - -#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 |