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/v17tx.h"
#include "spandsp/private/logging.h"
#include "spandsp/private/v17tx.h"
#include "v17_v32bis_tx_constellation_maps.h"
#include "v17_v32bis_tx_floating_rrc.h"
Macros | |
#define | CARRIER_NOMINAL_FREQ 1800.0f |
#define | V17_TRAINING_SEG_TEP_A 0 |
#define | V17_TRAINING_SEG_TEP_B (V17_TRAINING_SEG_TEP_A + 480) |
#define | V17_TRAINING_SEG_1 (V17_TRAINING_SEG_TEP_B + 48) |
#define | V17_TRAINING_SEG_2 (V17_TRAINING_SEG_1 + 256) |
#define | V17_TRAINING_SEG_3 (V17_TRAINING_SEG_2 + 2976) |
#define | V17_TRAINING_SEG_4 (V17_TRAINING_SEG_3 + 64) |
#define | V17_TRAINING_SHORT_SEG_4 (V17_TRAINING_SEG_2 + 38) |
#define | V17_TRAINING_END (V17_TRAINING_SEG_4 + 48) |
#define | V17_TRAINING_SHUTDOWN_A (V17_TRAINING_END + 32) |
#define | V17_TRAINING_SHUTDOWN_END (V17_TRAINING_SHUTDOWN_A + 48) |
#define | V17_BRIDGE_WORD 0x8880 |
Functions | |
int | v17_tx (v17_tx_state_t *s, int16_t amp[], int len) |
void | v17_tx_power (v17_tx_state_t *s, float power) |
Adjust a V.17 modem transmit context's output power. More... | |
void | v17_tx_set_get_bit (v17_tx_state_t *s, get_bit_func_t get_bit, void *user_data) |
Change the get_bit function associated with a V.17 modem transmit context. More... | |
void | v17_tx_set_modem_status_handler (v17_tx_state_t *s, modem_status_func_t handler, void *user_data) |
Change the modem status report function associated with a V.17 modem transmit context. More... | |
logging_state_t * | v17_tx_get_logging_state (v17_tx_state_t *s) |
Get the logging context associated with a V.17 modem transmit context. More... | |
int | v17_tx_restart (v17_tx_state_t *s, int bit_rate, int tep, int short_train) |
Reinitialise an existing V.17 modem transmit context. More... | |
v17_tx_state_t * | v17_tx_init (v17_tx_state_t *s, int bit_rate, int tep, get_bit_func_t get_bit, void *user_data) |
Initialise a V.17 modem transmit context. More... | |
int | v17_tx_release (v17_tx_state_t *s) |
Release a V.17 modem transmit context. More... | |
int | v17_tx_free (v17_tx_state_t *s) |
Free a V.17 modem transmit context. More... | |
#define CARRIER_NOMINAL_FREQ 1800.0f |
The nominal frequency of the carrier, in Hertz
#define V17_BRIDGE_WORD 0x8880 |
The 16 bit pattern used in the bridge section of the training sequence
#define V17_TRAINING_END (V17_TRAINING_SEG_4 + 48) |
The end of the training, in symbols
#define V17_TRAINING_SEG_1 (V17_TRAINING_SEG_TEP_B + 48) |
The start of training segment 1, in symbols
#define V17_TRAINING_SEG_2 (V17_TRAINING_SEG_1 + 256) |
The start of training segment 2, in symbols
#define V17_TRAINING_SEG_3 (V17_TRAINING_SEG_2 + 2976) |
The start of training segment 3, in symbols
#define V17_TRAINING_SEG_4 (V17_TRAINING_SEG_3 + 64) |
The start of training segment 4, in symbols
#define V17_TRAINING_SEG_TEP_A 0 |
The start of the optional TEP, that may preceed the actual training, in symbols
#define V17_TRAINING_SEG_TEP_B (V17_TRAINING_SEG_TEP_A + 480) |
The mid point of the optional TEP, that may preceed the actual training, in symbols
#define V17_TRAINING_SHORT_SEG_4 (V17_TRAINING_SEG_2 + 38) |
The start of training segment 4 in short training mode, in symbols
#define V17_TRAINING_SHUTDOWN_END (V17_TRAINING_SHUTDOWN_A + 48) |
The end of the shutdown sequence, in symbols
int v17_tx_free | ( | v17_tx_state_t * | s | ) |
Free a V.17 modem transmit context.
Free a V.17 modem transmit context.
s | The modem context. |
logging_state_t * v17_tx_get_logging_state | ( | v17_tx_state_t * | s | ) |
Get the logging context associated with a V.17 modem transmit context.
Get the logging context associated with a V.17 modem transmit context.
s | The modem context. |
References v17_tx_state_s::logging.
v17_tx_state_t * v17_tx_init | ( | v17_tx_state_t * | s, |
int | bit_rate, | ||
int | tep, | ||
get_bit_func_t | get_bit, | ||
void * | user_data | ||
) |
Initialise a V.17 modem transmit context.
Initialise a V.17 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 7200, 9600, 12000 and 14400. |
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. |
void v17_tx_power | ( | v17_tx_state_t * | s, |
float | power | ||
) |
Adjust a V.17 modem transmit context's output power.
Adjust a V.17 modem transmit context's power output.
s | The modem context. |
power | The power level, in dBm0 |
int v17_tx_release | ( | v17_tx_state_t * | s | ) |
Release a V.17 modem transmit context.
Release a V.17 modem transmit context.
s | The modem context. |
int v17_tx_restart | ( | v17_tx_state_t * | s, |
int | bit_rate, | ||
int | tep, | ||
int | short_train | ||
) |
Reinitialise an existing V.17 modem transmit context.
Reinitialise an existing V.17 modem transmit context, so it may be reused.
s | The modem context. |
bit_rate | The bit rate of the modem. Valid values are 7200, 9600, 12000 and 14400. |
tep | TRUE is the optional TEP tone is to be transmitted. |
short_train | TRUE if the short training sequence should be used. |
void v17_tx_set_get_bit | ( | v17_tx_state_t * | s, |
get_bit_func_t | get_bit, | ||
void * | user_data | ||
) |
Change the get_bit function associated with a V.17 modem transmit context.
Change the get_bit function associated with a V.17 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. |
void v17_tx_set_modem_status_handler | ( | v17_tx_state_t * | s, |
modem_status_func_t | handler, | ||
void * | user_data | ||
) |
Change the modem status report function associated with a V.17 modem transmit context.
Change the modem status report function associated with a V.17 modem transmit context.
s | The modem context. |
handler | The callback routine used to report modem status changes. |
user_data | An opaque pointer. |
References v17_tx_state_s::status_handler, and v17_tx_state_s::status_user_data.