comm.h File Reference

#include <sys/types.h>

Go to the source code of this file.

Macros
#define	COMM_SPEED_9600   0
#define	COMM_SPEED_38400   1
#define	ERR_SIO_OK   0
#define	ERR_SIO_BUSY   0x8100
#define	ERR_SIO_TIMEOUT   0x8101
#define	ERR_SIO_OVERRUN   0x8102
#define	ERR_SIO_CANCEL   0x8103
#define	ERR_XM_STATECODE   0x8104
#define	ERR_XM_CANCELED   0x8105
#define	ERR_XM_BLOCK_LOST   0x8106
#define	ERR_XM_TOO_LARGE   0x8107

Functions
static void	comm_open (void)
static void	comm_close (void)
static int16_t	comm_send_char (uint8_t ch)
static int16_t	comm_receive_char (void)
static int16_t	comm_receive_with_timeout (uint16_t timeout)
int16_t	comm_send_string (const char __far *str)
int16_t	comm_send_block (const void __far *data, uint16_t length)
int16_t	comm_receive_block (void __far *data, uint16_t length, int16_t __far *out_length)
static void	comm_set_timeout (uint16_t recv_timeout, uint16_t send_timeout)
static void	comm_set_baudrate (uint16_t value)
static uint16_t	comm_get_baudrate (void)
static void	comm_set_cancel_key (uint16_t value)
static uint16_t	comm_get_cancel_key (void)

Macro Definition Documentation

COMM_SPEED_38400

#define COMM_SPEED_38400   1

Definition at line 12 of file comm.h.

COMM_SPEED_9600

#define COMM_SPEED_9600   0

Definition at line 10 of file comm.h.

ERR_SIO_BUSY

#define ERR_SIO_BUSY   0x8100

Definition at line 17 of file comm.h.

ERR_SIO_CANCEL

#define ERR_SIO_CANCEL   0x8103

Definition at line 23 of file comm.h.

ERR_SIO_OK

#define ERR_SIO_OK   0

Definition at line 16 of file comm.h.

ERR_SIO_OVERRUN

#define ERR_SIO_OVERRUN   0x8102

Definition at line 21 of file comm.h.

ERR_SIO_TIMEOUT

#define ERR_SIO_TIMEOUT   0x8101

Definition at line 19 of file comm.h.

ERR_XM_BLOCK_LOST

#define ERR_XM_BLOCK_LOST   0x8106

Definition at line 26 of file comm.h.

ERR_XM_CANCELED

#define ERR_XM_CANCELED   0x8105

Definition at line 25 of file comm.h.

ERR_XM_STATECODE

#define ERR_XM_STATECODE   0x8104

Definition at line 24 of file comm.h.

ERR_XM_TOO_LARGE

#define ERR_XM_TOO_LARGE   0x8107

Definition at line 27 of file comm.h.

Function Documentation

comm_close()

static void comm_close ( void )

inlinestatic

Definition at line 39 of file comm.h.

comm_get_baudrate()

static uint16_t comm_get_baudrate ( void )

inlinestatic

Returns

Current baud rate

Definition at line 146 of file comm.h.

comm_get_cancel_key()

static uint16_t comm_get_cancel_key ( void )

inlinestatic

Returns

Current cancel key combination

Definition at line 173 of file comm.h.

comm_open()

static void comm_open ( void )

inlinestatic

Definition at line 29 of file comm.h.

comm_receive_block()

int16_t comm_receive_block	(	void __far *	data,
		uint16_t	length,
		int16_t __far *	out_length )

Parameters

data	Data buffer
length	Length of buffer, in bytes
out_length	Length of data received, in bytes

Returns

Return code

comm_receive_char()

static int16_t comm_receive_char ( void )

inlinestatic

Receive a character using the default timeout.

Returns

Character read on success, negative on error

Definition at line 68 of file comm.h.

comm_receive_with_timeout()

static int16_t comm_receive_with_timeout ( uint16_t timeout )

inlinestatic

Receive a character using an user-provided timeout.

Parameters

timeout

Timeout, in frames

Returns

Character read on success, negative on error

Definition at line 84 of file comm.h.

comm_send_block()

int16_t comm_send_block	(	const void __far *	data,
		uint16_t	length )

Parameters

data	Data to send
length	Length of data to send

Returns

Return code

comm_send_char()

static int16_t comm_send_char ( uint8_t ch )

inlinestatic

Parameters

ch	Character to send

Returns

Zero on success, negative on error

Definition at line 53 of file comm.h.

comm_send_string()

int16_t comm_send_string

(

const char __far *

str

)

Parameters

str	Input string to send

Returns

Return code

comm_set_baudrate()

static void comm_set_baudrate ( uint16_t value )

inlinestatic

Parameters

value

New baud rate

Definition at line 133 of file comm.h.

comm_set_cancel_key()

static void comm_set_cancel_key ( uint16_t value )

inlinestatic

Parameters

value

New cancel key combination

Definition at line 160 of file comm.h.

comm_set_timeout()

static void comm_set_timeout ( uint16_t recv_timeout, uint16_t send_timeout )

inlinestatic

Parameters

recv_timeout	Receive timeout
send_timeout	Send timeout

Definition at line 120 of file comm.h.