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/***************************************************************************
lib/ibRpp.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_ibrpp(ibConf_t *conf, char *result)
{
uint8_t poll_byte;
ibBoard_t *board;
int retval;
board = interfaceBoard(conf);
retval = is_cic(board);
if (retval <= 0) {
if (retval == 0)
setIberr(ECIC);
return -1;
}
set_timeout(board, conf->settings.ppoll_usec_timeout);
retval = ioctl(board->fileno, IBRPP, &poll_byte);
if (retval < 0) {
switch (errno) {
case ETIMEDOUT:
conf->timed_out = 1;
break;
default:
setIberr(EDVR);
setIbcnt(errno);
break;
}
return -1;
}
*result = poll_byte;
return 0;
}
int ibrpp(int ud, char *ppr)
{
ibConf_t *conf;
int retval;
conf = enter_library(ud);
if (!conf)
return exit_library(ud, 1);
retval = internal_ibrpp(conf, ppr);
if (retval < 0)
return exit_library(ud, 1);
return exit_library(ud, 0);
}
void PPoll(int boardID, short *result)
{
char byte_result;
ibConf_t *conf;
int retval;
conf = enter_library(boardID);
if (!conf) {
exit_library(boardID, 1);
return;
}
if (conf->is_interface == 0) {
setIberr(EDVR);
exit_library(boardID, 1);
return;
}
retval = internal_ibrpp(conf, &byte_result);
if (retval < 0) {
exit_library(boardID, 1);
return;
}
*result = byte_result & 0xff;
exit_library(boardID, 0);
}
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