cctalk-driver.c File Reference

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Detailed Description

cctalk driver code cctalk driver code

Author:

Rod Boyce

Date:

18/10/04

This module is the driver for the axis cctalk component. This driver will look after the communication over the serial port. The serial port will be opened in 9600 baud 8 data bits and one start and stop bit. This module does no checking on the data passing through it.

Date:

18/10/04

#include <termios.h>
#include <sys/ioctl.h>
#include <asm/ioctls.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include "cctalk-channel-defs.h"
#include "cctalk-operations.h"
#include "cctalk-driver.h"

Include dependency graph for cctalk-driver.c:

Defines
#define	_POSIX_SOURCE   1 /* POSIX compliant source */
#define	BSLOW   B4800
#define	BNORMAL   B9600
Functions
unsigned char	cct_DrvInitialise (tsCCT_COMM_HANDLER *psCctComms, teCCTALK_SPEED eCctSpd)
	Initialise.
void	cct_DrvClose (tsCCT_COMM_HANDLER *psCctComms)
	Close port.
int	cct_PerformCctalkOperation (tsCCT_COMM_HANDLER *psCctComms, tsCCTALK_OPERATION *psCctalkOp)
	Perform a cctalk operation on the cctalk bus.

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Function Documentation

cct_DrvClose (  tsCCT_COMM_HANDLER *  psCctComms  )

Close port. Must be called when closing the cctalk comms channel. This closes the file handle and restores the terminal settings Date: 12/10/04 Author: Rod Boyce Parameters: psCctComms  - Pointer to the comm handler struct that stores the parameters for this tty Returns: Nothing

cct_DrvInitialise (  tsCCT_COMM_HANDLER *  psCctComms, teCCTALK_SPEED  eCctSpd )

Initialise. Initialise the cctalk serial port. Date: 12/10/04 Author: Rod Boyce Parameters: psCctComms  - Pointer to the comm handler struct that stores the parameters for this tty eCctSpd  - the speed to set the com port to. Returns: TRUE on sucess and FALSE if an error occured History

cct_PerformCctalkOperation (  tsCCT_COMM_HANDLER *  psCctComms, tsCCTALK_OPERATION *  psCctalkOp )

Perform a cctalk operation on the cctalk bus. This function is called to perform a cctalk operation over a tty that has been configured for cctalk communication. Date: 12/10/04 Author: Rod Boyce Parameters: psCctComms  - Pointer to the comm handler struct that stores the parameters for this tty psCctalkOp  - A pointer to a cctalk operation structure Returns: > 0 on success and 0 or < 0 on failure FIXME: this needs work History

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