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/***************************************************************************
lib/ibLines.c
-------------------
copyright : (C) 2001,2002,2003 by Frank Mori Hess
email : fmhess@users.sourceforge.net
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "ib_internal.h"
int internal_iblines(ibConf_t *conf, short *line_status)
{
int retval;
ibBoard_t *board;
if (conf->is_interface == 0) {
setIberr(EARG);
return -1;
}
board = interfaceBoard(conf);
retval = ioctl(board->fileno, IBLINES, line_status);
if (retval < 0) {
switch (errno) {
default:
setIbcnt(errno);
setIberr(EDVR);
break;
}
return -1;
}
return 0;
}
int iblines(int ud, short *line_status)
{
ibConf_t *conf;
int retval;
conf = general_enter_library(ud, 1, 1);
if (conf == NULL)
return general_exit_library(ud, 1, 0, 0, 0, 0, 1);
retval = internal_iblines(conf, line_status);
if (retval < 0)
return general_exit_library(ud, 1, 0, 0, 0, 0, 1);
return general_exit_library(ud, 0, 0, 0, 0, 0, 1);
}
void TestSRQ(int boardID, short *result)
{
short line_status;
ibConf_t *conf;
int retval;
conf = general_enter_library(boardID, 1, 0);
if (conf == NULL) {
general_exit_library(boardID, 1, 0, 0, 0, 0, 1);
return;
}
retval = internal_iblines(conf, &line_status);
if (retval < 0) {
general_exit_library(boardID, 1, 0, 0, 0, 0, 1);
return;
}
if ((line_status & ValidSRQ) == 0) {
setIberr(ECAP);
general_exit_library(boardID, 1, 0, 0, 0, 0, 1);
return;
}
if (line_status & BusSRQ)
*result = 1;
else
*result = 0;
general_exit_library(boardID, 0, 0, 0, 0, 0, 1);
}
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