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Various cleanups. Skeleton for V.80 introduced.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| /* | ||
| * SpanDSP - a series of DSP components for telephony | ||
| * | ||
| * private/v80.h - In band DCE control and synchronous data modes for asynchronous DTEs | ||
| * | ||
| * Written by Steve Underwood <steveu@coppice.org> | ||
| * | ||
| * Copyright (C) 2023 Steve Underwood | ||
| * | ||
| * All rights reserved. | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU Lesser General Public License version 2.1, | ||
| * as published by the Free Software Foundation. | ||
| * | ||
| * 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 Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public | ||
| * License along with this program; if not, write to the Free Software | ||
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| */ | ||
|
|
||
| #if !defined(_SPANDSP_PRIVATE_V80_H_) | ||
| #define _SPANDSP_PRIVATE_V80_H_ | ||
|
|
||
| struct v80_state_s | ||
| { | ||
| /*! \brief True if we are the calling party */ | ||
| bool calling_party; | ||
| }; | ||
|
|
||
| #endif | ||
| /*- End of file ------------------------------------------------------------*/ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,259 @@ | ||
| /* | ||
| * SpanDSP - a series of DSP components for telephony | ||
| * | ||
| * v80.c - In band DCE control and synchronous data modes for asynchronous DTE | ||
| * | ||
| * Written by Steve Underwood <steveu@coppice.org> | ||
| * | ||
| * Copyright (C) 2023 Steve Underwood | ||
| * | ||
| * All rights reserved. | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU Lesser General Public License version 2.1, | ||
| * as published by the Free Software Foundation. | ||
| * | ||
| * 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 Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public | ||
| * License along with this program; if not, write to the Free Software | ||
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| */ | ||
|
|
||
| /*! \file */ | ||
|
|
||
| #if defined(HAVE_CONFIG_H) | ||
| #include "config.h" | ||
| #endif | ||
|
|
||
| #include <inttypes.h> | ||
| #include <stdlib.h> | ||
| #include <stdio.h> | ||
| #include <memory.h> | ||
| #if defined(HAVE_TGMATH_H) | ||
| #include <tgmath.h> | ||
| #endif | ||
| #if defined(HAVE_MATH_H) | ||
| #include <math.h> | ||
| #endif | ||
| #if defined(HAVE_STDBOOL_H) | ||
| #include <stdbool.h> | ||
| #else | ||
| #include "spandsp/stdbool.h" | ||
| #endif | ||
| #include "floating_fudge.h" | ||
|
|
||
| #include "spandsp/telephony.h" | ||
| #include "spandsp/logging.h" | ||
| #include "spandsp/v80.h" | ||
|
|
||
| #include "spandsp/private/logging.h" | ||
| //#include "spandsp/private/v80.h" | ||
|
|
||
| SPAN_DECLARE(const char *) v80_escape_to_str(int esc) | ||
| { | ||
| static const char *escapes[] = | ||
| { | ||
| "MFGExtend", | ||
| "Mfg1", | ||
| "Mfg2", | ||
| "Mfg3", | ||
| "Mfg4", | ||
| "Mfg5", | ||
| "Mfg6", | ||
| "Mfg7", | ||
| "Mfg8", | ||
| "Mfg9", | ||
| "Mfg10", | ||
| "Mfg11", | ||
| "Mfg12", | ||
| "Mfg13", | ||
| "Mfg14", | ||
| "Mfg15", | ||
| "ExtendMfg", | ||
| "Mfg1", | ||
| "Mfg2", | ||
| "Mfg3", | ||
| "Mfg4", | ||
| "Mfg5", | ||
| "Mfg6", | ||
| "Mfg7", | ||
| "Mfg8", | ||
| "Mfg9", | ||
| "Mfg10", | ||
| "Mfg11", | ||
| "Mfg12", | ||
| "Mfg13", | ||
| "Mfg14", | ||
| "Mfg15", | ||
| "Extend0", | ||
| "Extend1", | ||
| "Circuit 105 OFF", | ||
| "Circuit 105 ON", | ||
| "Circuit 108 OFF", | ||
| "Circuit 108 ON", | ||
| "Circuit 133 OFF", | ||
| "Circuit 133 ON", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "Single EM P", | ||
| "Dingle EM P", | ||
| "Flow OFF", | ||
| "Flow ON", | ||
| "Single EM", | ||
| "Double EM", | ||
| "Poll", | ||
| "???", | ||
| "Extend0", | ||
| "Extend1", | ||
| "Circuit 106 OFF", | ||
| "Circuit 106 ON", | ||
| "Circuit 107 OFF", | ||
| "Circuit 107 ON", | ||
| "Circuit 109 OFF", | ||
| "Circuit 109 ON", | ||
| "Circuit 110 OFF", | ||
| "Circuit 110 ON", | ||
| "Circuit 125 OFF", | ||
| "Circuit 125 ON", | ||
| "Circuit 132 OFF", | ||
| "Circuit 132 ON", | ||
| "Circuit 142 OFF", | ||
| "Circuit 142 ON", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "Single EM P", | ||
| "Double EM P", | ||
| "OFF line", | ||
| "ON line", | ||
| "Flow OFF", | ||
| "Flow ON", | ||
| "Single EM", | ||
| "Double EM", | ||
| "Poll", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "???", | ||
| "T3", | ||
| "T4", | ||
| "T7", | ||
| "T8", | ||
| "T9", | ||
| "T10", | ||
| "T11", | ||
| "T12", | ||
| "T13", | ||
| "T14", | ||
| "T15", | ||
| "T16", | ||
| "T17", | ||
| "T18", | ||
| "T19", | ||
| "T20", | ||
| "Mark", | ||
| "Flag", | ||
| "Err", | ||
| "Hunt", | ||
| "Under", | ||
| "TOver", | ||
| "ROver", | ||
| "Resume", | ||
| "BNum", | ||
| "UNum", | ||
| "EOTH", | ||
| "ECS", | ||
| "RRNH", | ||
| "RTNH", | ||
| "RateH", | ||
| "CTL", | ||
| "RTNC" | ||
| }; | ||
|
|
||
| if (esc >= 0x20 && esc <= 0xC0) | ||
| return escapes[esc - 0x20]; | ||
| /*endif*/ | ||
| return "???"; | ||
| } | ||
| /*- End of function --------------------------------------------------------*/ | ||
|
|
||
| SPAN_DECLARE(int) v80_bit_rate_code_to_bit_rate(int rate_code) | ||
| { | ||
| static const int rates[] = | ||
| { | ||
| 1200, | ||
| 2400, | ||
| 4800, | ||
| 7200, | ||
| 9600, | ||
| 12000, | ||
| 16800, | ||
| 19200, | ||
| 21600, | ||
| 24000, | ||
| 26400, | ||
| 28800, | ||
| 31200, | ||
| 33600, | ||
| 32000, | ||
| 56000, | ||
| 64000 | ||
| }; | ||
|
|
||
| if (rate_code >= V80_BIT_RATE_1200 && rate_code <= V80_BIT_RATE_64000) | ||
| return rates[rate_code - V80_BIT_RATE_1200]; | ||
| /*endif*/ | ||
| return -1; | ||
| } | ||
| /*- End of function --------------------------------------------------------*/ | ||
| /*- End of file ------------------------------------------------------------*/ |
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