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spandsp 0.0.6
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#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/v29tx.h"#include "spandsp/private/logging.h"#include "spandsp/private/v29tx.h"#include "v29tx_constellation_maps.h"#include "v29tx_floating_rrc.h"Macros | |
| #define | CARRIER_NOMINAL_FREQ 1700.0f |
| #define | V29_TRAINING_SEG_TEP 0 |
| #define | V29_TRAINING_SEG_1 (V29_TRAINING_SEG_TEP + 480) |
| #define | V29_TRAINING_SEG_2 (V29_TRAINING_SEG_1 + 48) |
| #define | V29_TRAINING_SEG_3 (V29_TRAINING_SEG_2 + 128) |
| #define | V29_TRAINING_SEG_4 (V29_TRAINING_SEG_3 + 384) |
| #define | V29_TRAINING_END (V29_TRAINING_SEG_4 + 48) |
| #define | V29_TRAINING_SHUTDOWN_END (V29_TRAINING_END + 32) |
Functions | |
| int | v29_tx (v29_tx_state_t *s, int16_t amp[], int len) |
| void | v29_tx_power (v29_tx_state_t *s, float power) |
| Adjust a V.29 modem transmit context's output power. | |
| void | v29_tx_set_get_bit (v29_tx_state_t *s, get_bit_func_t get_bit, void *user_data) |
| Change the get_bit function associated with a V.29 modem transmit context. | |
| void | v29_tx_set_modem_status_handler (v29_tx_state_t *s, modem_status_func_t handler, void *user_data) |
| Change the modem status report function associated with a V.29 modem transmit context. | |
| logging_state_t * | v29_tx_get_logging_state (v29_tx_state_t *s) |
| Get the logging context associated with a V.29 modem transmit context. | |
| int | v29_tx_restart (v29_tx_state_t *s, int bit_rate, int tep) |
| Reinitialise an existing V.29 modem transmit context. | |
| v29_tx_state_t * | v29_tx_init (v29_tx_state_t *s, int bit_rate, int tep, get_bit_func_t get_bit, void *user_data) |
| Initialise a V.29 modem transmit context. | |
| int | v29_tx_release (v29_tx_state_t *s) |
| Release a V.29 modem transmit context. | |
| int | v29_tx_free (v29_tx_state_t *s) |
| Free a V.29 modem transmit context. | |
| #define CARRIER_NOMINAL_FREQ 1700.0f |
The nominal frequency of the carrier, in Hertz
| #define V29_TRAINING_END (V29_TRAINING_SEG_4 + 48) |
The end of the training, in symbols
| #define V29_TRAINING_SEG_1 (V29_TRAINING_SEG_TEP + 480) |
The start of training segment 1, in symbols
| #define V29_TRAINING_SEG_2 (V29_TRAINING_SEG_1 + 48) |
The start of training segment 2, in symbols
| #define V29_TRAINING_SEG_3 (V29_TRAINING_SEG_2 + 128) |
The start of training segment 3, in symbols
| #define V29_TRAINING_SEG_4 (V29_TRAINING_SEG_3 + 384) |
The start of training segment 4, in symbols
| #define V29_TRAINING_SEG_TEP 0 |
The start of the optional TEP, that may preceed the actual training, in symbols
| #define V29_TRAINING_SHUTDOWN_END (V29_TRAINING_END + 32) |
The end of the shutdown sequence, in symbols
| int v29_tx_free | ( | v29_tx_state_t * | s | ) |
Free a V.29 modem transmit context.
Free a V.29 modem transmit context.
| s | The modem context. |
| logging_state_t * v29_tx_get_logging_state | ( | v29_tx_state_t * | s | ) |
Get the logging context associated with a V.29 modem transmit context.
Get the logging context associated with a V.29 modem transmit context.
| s | The modem context. |
References v29_tx_state_s::logging.
| v29_tx_state_t * v29_tx_init | ( | v29_tx_state_t * | s, |
| int | bit_rate, | ||
| int | tep, | ||
| get_bit_func_t | get_bit, | ||
| void * | user_data | ||
| ) |
Initialise a V.29 modem transmit context.
Initialise a V.29 modem transmit context. This must be called before the first use of the context, to initialise its contents.
| s | The modem context. |
| bit_rate | The bit rate of the modem. Valid values are 4800, 7200 and 9600. |
| 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, v29_tx_state_s::carrier_phase_rate, v29_tx_state_s::get_bit, v29_tx_state_s::get_bit_user_data, v29_tx_state_s::logging, v29_tx_power(), and v29_tx_restart().
| void v29_tx_power | ( | v29_tx_state_t * | s, |
| float | power | ||
| ) |
Adjust a V.29 modem transmit context's output power.
Adjust a V.29 modem transmit context's power output.
| s | The modem context. |
| power | The power level, in dBm0 |
References v29_tx_state_s::base_gain.
Referenced by v29_tx_init().
| int v29_tx_release | ( | v29_tx_state_t * | s | ) |
Release a V.29 modem transmit context.
Release a V.29 modem transmit context.
| s | The modem context. |
| int v29_tx_restart | ( | v29_tx_state_t * | s, |
| int | bit_rate, | ||
| int | tep | ||
| ) |
Reinitialise an existing V.29 modem transmit context.
Reinitialise an existing V.29 modem transmit context, so it may be reused.
| s | The modem context. |
| bit_rate | The bit rate of the modem. Valid values are 4800, 7200 and 9600. |
| tep | TRUE is the optional TEP tone is to be transmitted. |
References v29_tx_state_s::baud_phase, v29_tx_state_s::bit_rate, v29_tx_state_s::carrier_phase, v29_tx_state_s::constellation_state, v29_tx_state_s::current_get_bit, v29_tx_state_s::in_training, v29_tx_state_s::logging, v29_tx_state_s::rrc_filter, v29_tx_state_s::rrc_filter_step, v29_tx_state_s::scramble_reg, span_log(), v29_tx_state_s::training_offset, v29_tx_state_s::training_scramble_reg, v29_tx_state_s::training_step, V29_TRAINING_SEG_1, and V29_TRAINING_SEG_TEP.
Referenced by v29_tx_init().
| void v29_tx_set_get_bit | ( | v29_tx_state_t * | s, |
| get_bit_func_t | get_bit, | ||
| void * | user_data | ||
| ) |
Change the get_bit function associated with a V.29 modem transmit context.
Change the get_bit function associated with a V.29 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 v29_tx_state_s::current_get_bit, v29_tx_state_s::get_bit, and v29_tx_state_s::get_bit_user_data.
| void v29_tx_set_modem_status_handler | ( | v29_tx_state_t * | s, |
| modem_status_func_t | handler, | ||
| void * | user_data | ||
| ) |
Change the modem status report function associated with a V.29 modem transmit context.
Change the modem status report function associated with a V.29 modem transmit context.
| s | The modem context. |
| handler | The callback routine used to report modem status changes. |
| user_data | An opaque pointer. |
References v29_tx_state_s::status_handler, and v29_tx_state_s::status_user_data.