59 #if !defined(_SPANDSP_ASYNC_H_) 60 #define _SPANDSP_ASYNC_H_ 108 typedef void (*put_msg_func_t)(
void *user_data,
const uint8_t *msg,
int len);
112 typedef int (*get_msg_func_t)(
void *user_data, uint8_t *msg,
int max_len);
116 typedef void (*put_byte_func_t)(
void *user_data,
int byte);
120 typedef int (*get_byte_func_t)(
void *user_data);
124 typedef void (*put_bit_func_t)(
void *user_data,
int bit);
128 typedef int (*get_bit_func_t)(
void *user_data);
132 typedef void (*modem_status_func_t)(
void *user_data,
int status);
160 #if defined(__cplusplus) 182 SPAN_DECLARE(
int) async_rx_get_parity_errors(
async_rx_state_t *s,
bool reset);
184 SPAN_DECLARE(
int) async_rx_get_framing_errors(
async_rx_state_t *s,
bool reset);
243 #if defined(__cplusplus) The data stream has ended.
Definition: async.h:83
The carrier signal is up. This merely indicates that carrier energy has been seen. It is not an indication that the carrier is either valid, or of the expected type.
Definition: async.h:70
int16_t data_bits
The number of data bits per character.
Definition: private/async.h:65
Notification that a modem retrain has occurred.
Definition: async.h:95
An abort signal (e.g. an HDLC abort) has been received.
Definition: async.h:85
void * user_data
An opaque pointer passed when calling put_byte.
Definition: private/async.h:75
const char * signal_status_to_str(int status)
Convert a signal status to a short text description.
Definition: async.c:49
int async_tx_get_bit(void *user_data)
Get the next bit of a transmitted serial bit stream.
Definition: async.c:277
int(* span_get_bit_func_t)(void *user_data)
Definition: async.h:127
span_put_byte_func_t put_byte
A pointer to the callback routine used to handle received characters.
Definition: private/async.h:73
Regular octet report for things like HDLC to the MTP standards.
Definition: async.h:91
The link protocol (e.g. V.42) has disconnected.
Definition: async.h:99
int(* span_get_msg_func_t)(void *user_data, uint8_t *msg, int max_len)
Definition: async.h:111
void(* span_modem_status_func_t)(void *user_data, int status)
Definition: async.h:131
void(* span_put_bit_func_t)(void *user_data, int bit)
Definition: async.h:123
Notification that a modem has detected signal quality degradation.
Definition: async.h:93
void(* span_put_msg_func_t)(void *user_data, const uint8_t *msg, int len)
Definition: async.h:107
void async_rx_put_bit(void *user_data, int bit)
Accept a bit from a received serial bit stream.
Definition: async.c:93
Packet framing (e.g. HDLC framing) is OK.
Definition: async.h:81
The modem has trained, and is ready for data exchange.
Definition: async.h:77
int(* span_get_byte_func_t)(void *user_data)
Definition: async.h:119
The modem has failed to train.
Definition: async.h:79
Definition: private/async.h:62
The carrier signal has dropped.
Definition: async.h:66
An error has occurred in the link protocol (e.g. V.42).
Definition: async.h:101
async_tx_state_t * async_tx_init(async_tx_state_t *s, int data_bits, int parity, int stop_bits, bool use_v14, span_get_byte_func_t get_byte, void *user_data)
Initialise an asynchronous data transmit context.
Definition: async.c:347
Keep the link in an idle state, as there is nothing to send.
Definition: async.h:103
The link protocol (e.g. V.42) has connected.
Definition: async.h:97
bool use_v14
True if V.14 rate adaption processing should be performed.
Definition: private/async.h:71
async_rx_state_t * async_rx_init(async_rx_state_t *s, int data_bits, int parity, int stop_bits, bool use_v14, span_put_byte_func_t put_byte, void *user_data)
Initialise an asynchronous data receiver context.
Definition: async.c:227
Definition: private/async.h:34
The modem is training. This is an early indication that the signal seems to be of the right type...
Definition: async.h:75
int16_t parity
The type of parity.
Definition: private/async.h:67
void async_tx_presend_bits(async_tx_state_t *s, int bits)
Set a minimum number of bit times of stop bit state before character transmission commences...
Definition: async.c:341
void(* span_put_byte_func_t)(void *user_data, int byte)
Definition: async.h:115
A break signal (e.g. an async break) has been received.
Definition: async.h:87
A modem has completed its task, and shut down.
Definition: async.h:89