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/***************************************************************************
lib/ibSre.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"
#include <stdlib.h>
int remote_enable(const ibBoard_t *board, int enable)
{
int retval;
retval = is_system_controller(board);
if (retval <= 0) {
if (retval == 0)
setIberr(ESAC);
return -1;
}
retval = ioctl(board->fileno, IBSRE, &enable);
if (retval < 0) {
// XXX other error types?
setIberr(EDVR);
setIbcnt(errno);
return retval;
}
return 0;
}
int internal_ibsre(ibConf_t *conf, int v)
{
ibBoard_t *board;
int retval;
board = interfaceBoard(conf);
if (!conf->is_interface) {
setIberr(EARG);
return -1;
}
retval = remote_enable(board, v);
if (retval < 0)
return retval;
return 0;
}
int ibsre(int ud, int v)
{
ibConf_t *conf;
int retval;
conf = enter_library(ud);
if (conf == NULL)
return exit_library(ud, 1);
retval = internal_ibsre(conf, v);
if (retval < 0) {
fprintf(stderr, "libgpib: ibsre error\n");
return exit_library(ud, 1);
}
//XXX supposed to set iberr to old REN setting
return exit_library(ud, 0);
}
int InternalEnableRemote(ibConf_t *conf, const Addr4882_t addressList[])
{
int i;
ibBoard_t *board;
uint8_t *cmd;
int count;
int retval;
if (addressListIsValid(addressList) == 0)
return -1;
if (conf->is_interface == 0) {
setIberr(EDVR);
return -1;
}
board = interfaceBoard(conf);
retval = is_cic(board);
if (retval <= 0) {
if (retval == 0)
setIberr(ECIC);
return -1;
}
retval = remote_enable(board, 1);
if (retval < 0)
return -1;
if (numAddresses(addressList) == 0)
return 0;
cmd = malloc(16 + 2 * numAddresses(addressList));
if (!cmd){
setIberr(EDVR);
setIbcnt(ENOMEM);
return -1;
}
i = create_send_setup(board, addressList, cmd);
//XXX detect no listeners (EBUS) error
count = my_ibcmd(conf, conf->settings.usec_timeout, cmd, i);
free(cmd);
cmd = NULL;
if (count != i)
return -1;
return 0;
}
void EnableRemote(int boardID, const Addr4882_t addressList[])
{
ibConf_t *conf;
int retval;
conf = enter_library(boardID);
if (!conf) {
exit_library(boardID, 1);
return;
}
retval = InternalEnableRemote(conf, addressList);
if (retval < 0) {
exit_library(boardID, 1);
return;
}
exit_library(boardID, 0);
}
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