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https://github.com/ep00ch/lwip-contrib-mac.git
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83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
#ifndef SIO_H
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#define SIO_H
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#include "lwip/sys.h"
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#include "lwip/netif.h"
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#include "netif/fifo.h"
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/*#include "netif/pppif.h"*/
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/* BAUDRATE is defined in sio.c as it is implementation specific */
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typedef struct sio_status_t {
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int fd;
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fifo_t myfifo;
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} sio_status_t;
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/** Baudrates */
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typedef enum sioBaudrates {
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SIO_BAUD_9600,
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SIO_BAUD_19200,
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SIO_BAUD_38400,
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SIO_BAUD_57600,
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SIO_BAUD_115200
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} sioBaudrates;
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/**
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* Read a char from incoming data stream, this call blocks until data has arrived
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* @param siostat siostatus struct, contains sio instance data, given by sio_open
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* @return char read from input stream
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*/
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u8_t sio_recv( sio_status_t * siostat );
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/**
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* Poll for a new character from incoming data stream
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* @param siostat siostatus struct, contains sio instance data, given by sio_open
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* @return char read from input stream, or < 0 if no char was available
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*/
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s16_t sio_poll(sio_status_t * siostat);
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/**
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* Parse incoming characters until a string str is recieved, blocking call
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* @param str zero terminated string to expect
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* @param siostat siostatus struct, contains sio instance data, given by sio_open
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*/
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void sio_expect_string(u8_t *str, sio_status_t * siostat);
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/**
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* Write a char to output data stream
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* @param c char to write to output stream
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* @param siostat siostatus struct, contains sio instance data, given by sio_open
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*/
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void sio_send( u8_t c, sio_status_t * siostat );
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/**
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* Write a char to output data stream
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* @param str pointer to a zero terminated string
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* @param siostat siostatus struct, contains sio instance data, given by sio_open
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*/
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void sio_send_string(u8_t *str, sio_status_t * siostat);
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/**
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* Flush outbuffer (send everything in buffer now), useful if some layer below is
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* holding on to data, waitng to fill a buffer
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* @param siostat siostatus struct, contains sio instance data, given by sio_open
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*/
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void sio_flush( sio_status_t * siostat );
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/**
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* Open serial port entry point from serial protocol (slipif, pppif)
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* @param devnum the device number to use, i.e. ttySx, comx:, etc. there x = devnum
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* @return siostatus struct, contains sio instance data, use when calling sio functions
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*/
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sio_status_t * sio_open( int devnum );
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/**
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* Change baudrate of port, may close and reopen port
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* @param baud new baudrate
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* @param siostat siostatus struct, contains sio instance data, given by sio_open
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*/
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void sio_change_baud( sioBaudrates baud, sio_status_t * siostat );
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#endif
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