| spandsp 0.0.6
    | 
#include <stdio.h>#include <inttypes.h>#include <stdlib.h>#include <string.h>#include "floating_fudge.h"#include "spandsp/telephony.h"#include "spandsp/fast_convert.h"#include "spandsp/logging.h"#include "spandsp/complex.h"#include "spandsp/vector_float.h"#include "spandsp/complex_vector_float.h"#include "spandsp/vector_int.h"#include "spandsp/complex_vector_int.h"#include "spandsp/async.h"#include "spandsp/dds.h"#include "spandsp/power_meter.h"#include "spandsp/v27ter_tx.h"#include "spandsp/private/logging.h"#include "spandsp/private/v27ter_tx.h"#include "v27ter_tx_4800_floating_rrc.h"#include "v27ter_tx_2400_floating_rrc.h"| Macros | |
| #define | CARRIER_NOMINAL_FREQ 1800.0f | 
| #define | V27TER_TRAINING_SEG_1 0 | 
| #define | V27TER_TRAINING_SEG_2 (V27TER_TRAINING_SEG_1 + 320) | 
| #define | V27TER_TRAINING_SEG_3 (V27TER_TRAINING_SEG_2 + 32) | 
| #define | V27TER_TRAINING_SEG_4 (V27TER_TRAINING_SEG_3 + 50) | 
| #define | V27TER_TRAINING_SEG_5 (V27TER_TRAINING_SEG_4 + 1074) | 
| #define | V27TER_TRAINING_END (V27TER_TRAINING_SEG_5 + 8) | 
| #define | V27TER_TRAINING_SHUTDOWN_END (V27TER_TRAINING_END + 32) | 
| Functions | |
| int | v27ter_tx (v27ter_tx_state_t *s, int16_t amp[], int len) | 
| void | v27ter_tx_power (v27ter_tx_state_t *s, float power) | 
| Adjust a V.27ter modem transmit context's output power. | |
| void | v27ter_tx_set_get_bit (v27ter_tx_state_t *s, get_bit_func_t get_bit, void *user_data) | 
| Change the get_bit function associated with a V.27ter modem transmit context. | |
| void | v27ter_tx_set_modem_status_handler (v27ter_tx_state_t *s, modem_status_func_t handler, void *user_data) | 
| Change the modem status report function associated with a V.27ter modem transmit context. | |
| logging_state_t * | v27ter_tx_get_logging_state (v27ter_tx_state_t *s) | 
| Get the logging context associated with a V.27ter modem transmit context. | |
| int | v27ter_tx_restart (v27ter_tx_state_t *s, int bit_rate, int tep) | 
| Reinitialise an existing V.27ter modem transmit context. | |
| v27ter_tx_state_t * | v27ter_tx_init (v27ter_tx_state_t *s, int bit_rate, int tep, get_bit_func_t get_bit, void *user_data) | 
| Initialise a V.27ter modem transmit context. | |
| int | v27ter_tx_release (v27ter_tx_state_t *s) | 
| Release a V.27ter modem transmit context. | |
| int | v27ter_tx_free (v27ter_tx_state_t *s) | 
| Free a V.27ter modem transmit context. | |
| #define CARRIER_NOMINAL_FREQ 1800.0f | 
The nominal frequency of the carrier, in Hertz
| #define V27TER_TRAINING_END (V27TER_TRAINING_SEG_5 + 8) | 
The end of the training, in symbols
| #define V27TER_TRAINING_SEG_1 0 | 
The start of training segment 1, in symbols
| #define V27TER_TRAINING_SEG_2 (V27TER_TRAINING_SEG_1 + 320) | 
The start of training segment 2, in symbols
| #define V27TER_TRAINING_SEG_3 (V27TER_TRAINING_SEG_2 + 32) | 
The start of training segment 3, in symbols
| #define V27TER_TRAINING_SEG_4 (V27TER_TRAINING_SEG_3 + 50) | 
The start of training segment 4, in symbols
| #define V27TER_TRAINING_SEG_5 (V27TER_TRAINING_SEG_4 + 1074) | 
The start of training segment 5, in symbols
| #define V27TER_TRAINING_SHUTDOWN_END (V27TER_TRAINING_END + 32) | 
The end of the shutdown sequence, in symbols
| int v27ter_tx_free | ( | v27ter_tx_state_t * | s | ) | 
Free a V.27ter modem transmit context.
Free a V.27ter modem transmit context.
| s | The modem context. | 
| logging_state_t * v27ter_tx_get_logging_state | ( | v27ter_tx_state_t * | s | ) | 
Get the logging context associated with a V.27ter modem transmit context.
Get the logging context associated with a V.27ter modem transmit context.
| s | The modem context. | 
References v27ter_tx_state_s::logging.
| v27ter_tx_state_t * v27ter_tx_init | ( | v27ter_tx_state_t * | s, | 
| int | bit_rate, | ||
| int | tep, | ||
| get_bit_func_t | get_bit, | ||
| void * | user_data | ||
| ) | 
Initialise a V.27ter modem transmit context.
Initialise a V.27ter modem transmit context.
| s | The modem context. | 
| bit_rate | The bit rate of the modem. Valid values are 2400 and 4800. | 
| tep | TRUE is the optional TEP tone is to be transmitted. | 
| get_bit | The callback routine used to get the data to be transmitted. | 
| user_data | An opaque pointer. | 
References CARRIER_NOMINAL_FREQ, v27ter_tx_state_s::carrier_phase_rate, dds_phase_ratef(), v27ter_tx_state_s::get_bit, v27ter_tx_state_s::get_bit_user_data, v27ter_tx_state_s::logging, v27ter_tx_power(), and v27ter_tx_restart().
| void v27ter_tx_power | ( | v27ter_tx_state_t * | s, | 
| float | power | ||
| ) | 
Adjust a V.27ter modem transmit context's output power.
Adjust a V.27ter modem transmit context's power output.
| s | The modem context. | 
| power | The power level, in dBm0 | 
References v27ter_tx_state_s::gain_2400, and v27ter_tx_state_s::gain_4800.
Referenced by v27ter_tx_init().
| int v27ter_tx_release | ( | v27ter_tx_state_t * | s | ) | 
Release a V.27ter modem transmit context.
Release a V.27ter modem transmit context.
| s | The modem context. | 
| int v27ter_tx_restart | ( | v27ter_tx_state_t * | s, | 
| int | bit_rate, | ||
| int | tep | ||
| ) | 
Reinitialise an existing V.27ter modem transmit context.
Reinitialise an existing V.27ter modem transmit context, so it may be reused.
| s | The modem context. | 
| bit_rate | The bit rate of the modem. Valid values are 2400 and 4800. | 
| tep | TRUE is the optional TEP tone is to be transmitted. | 
References v27ter_tx_state_s::baud_phase, v27ter_tx_state_s::bit_rate, v27ter_tx_state_s::carrier_phase, v27ter_tx_state_s::constellation_state, v27ter_tx_state_s::current_get_bit, v27ter_tx_state_s::in_training, v27ter_tx_state_s::rrc_filter, v27ter_tx_state_s::rrc_filter_step, v27ter_tx_state_s::scramble_reg, v27ter_tx_state_s::scrambler_pattern_count, v27ter_tx_state_s::training_step, V27TER_TRAINING_SEG_1, and V27TER_TRAINING_SEG_2.
Referenced by v27ter_tx_init().
| void v27ter_tx_set_get_bit | ( | v27ter_tx_state_t * | s, | 
| get_bit_func_t | get_bit, | ||
| void * | user_data | ||
| ) | 
Change the get_bit function associated with a V.27ter modem transmit context.
Change the get_bit function associated with a V.27ter modem transmit context.
| s | The modem context. | 
| get_bit | The callback routine used to get the data to be transmitted. | 
| user_data | An opaque pointer. | 
References v27ter_tx_state_s::current_get_bit, v27ter_tx_state_s::get_bit, and v27ter_tx_state_s::get_bit_user_data.
| void v27ter_tx_set_modem_status_handler | ( | v27ter_tx_state_t * | s, | 
| modem_status_func_t | handler, | ||
| void * | user_data | ||
| ) | 
Change the modem status report function associated with a V.27ter modem transmit context.
Change the modem status report function associated with a V.27ter modem transmit context.
| s | The modem context. | 
| handler | The callback routine used to report modem status changes. | 
| user_data | An opaque pointer. | 
References v27ter_tx_state_s::status_handler, and v27ter_tx_state_s::status_user_data.