/* GSM utility functions, e.g. coding and decoding */ /* * (C) 2008 by Daniel Willmann * (C) 2009 by Holger Hans Peter Freyther * (C) 2009 by Harald Welte * * 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. * */ #ifndef GSM_UTILS_H #define GSM_UTILS_H #include enum gsm_band { GSM_BAND_850 = 1, GSM_BAND_900 = 2, GSM_BAND_1800 = 4, GSM_BAND_1900 = 8, GSM_BAND_450 = 0x10, GSM_BAND_480 = 0x20, GSM_BAND_750 = 0x40, GSM_BAND_810 = 0x80, }; int gsm_7bit_decode(char *decoded, const uint8_t *user_data, uint8_t length); int gsm_7bit_encode(uint8_t *result, const char *data); int ms_pwr_ctl_lvl(enum gsm_band band, unsigned int dbm); int ms_pwr_dbm(enum gsm_band band, uint8_t lvl); /* According to TS 08.05 Chapter 8.1.4 */ int rxlev2dbm(uint8_t rxlev); uint8_t dbm2rxlev(int dbm); /* According to GSM 04.08 Chapter 10.5.2.29 */ static inline int rach_max_trans_val2raw(int val) { return (val >> 1) & 3; } static inline int rach_max_trans_raw2val(int raw) { const int tbl[4] = { 1, 2, 4, 7 }; return tbl[raw & 3]; } void generate_backtrace(); #endif