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/*****************************************************************************
**
** pnp-access.c
*/
static char st_pnp_access_version[] __attribute__((unused)) = "$Id: pnp-access.c,v 0.0 1999/12/02 22:28:02 fox Exp $";
/*
**
** Contains the interrogate_isapnp() procedure, which encapsulates
** everything having to do with creation of the ISA PnP resources
** list.
**
** Copyright (C) P.J.H.Fox (fox@roestock.demon.co.uk)
** Modifications by Omer Zak (omerz@actcom.co.il)
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Library General Public
** License as published by the Free Software Foundation; either
** version 2 of the License, or (at your option) any later version.
**
** This library is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
** Library General Public License for more details.
**
** You should have received a copy of the GNU Library General Public
** License along with this library; if not, write to the
** Free Software Foundation, Inc., 59 Temple Place - Suite 330,
** Boston, MA 02111-1307 USA.
**
******************************************************************************
**
** Bug reports and fixes - to P.J.H.Fox (fox@roestock.demon.co.uk)
** Note: by sending unsolicited commercial/political/religious
** E-mail messages (known also as "spam") to any E-mail address
** mentioned in this file, you irrevocably agree to pay the
** receipient US$500.- (plus any legal expenses incurred while
** trying to collect the amount due) per unsolicited
** commercial/political/religious E-mail message - for
** the service of receiving your E-mail message.
**
*****************************************************************************/
#include <stdio.h> /* only for NULL declaration */
#include <setjmp.h>
#include "release.h"
#include "callbacks.h"
#include "pnp-access.h"
#include "iopl.h"
#include "res-access.h"
#ifdef REALTIME
#include "realtime.h"
#endif
#include "errenum.h"
/****************************************************************************/
/* Fatal error callback - is not visible to the user */
fatal_error pnpdump_fatal_error_callback;
jmp_buf st_fatal_error_jmp_buf; /* Used to handle fatal errors */
int st_fatal_isapnp_error_code; /* set by the callback for
** interrogate_isapnp()
*/
void
pnpdump_fatal_error_callback(int in_isapnp_error)
{
longjmp(st_fatal_error_jmp_buf,st_fatal_isapnp_error_code);
/*
!!!!!!!! PREVIOUS CODE - MOVE TO DEMO2 !!!!!!!!!!!!
if (in_isapnp_error >= ISAPNP_E_LAST_ERROR_CODE) {
fprintf(stderr, "Unknown fatal error - error code is %d.\n",
in_isapnp_error);
}
else {
fprintf(stderr,"%s\n",st_error_messages[in_isapnp_error]);
}
exit(1);
!!!!!!!!!!!!! End of previous code !!!!!!!!!
*/
}
/*****************************************************************************
** Interrogate the ISA PnP cards and optionally allocate resources.
** The arguments are:
** in_args_p - points at a structure containing all input arguments and
** settings of the command line flags (if any).
** out_results_p - points at a structure containing all results.
**
** The return value of the procedure is 0 for normal return. In this
** case, *out_results_p contains valid results.
** If anything was wrong, a nonzero value is returned.
*/
int
interrogate_isapnp(const interrogate_args *in_args_p,
interrogate_results *out_results_p)
{
int l_card_index;
int l_ret;
/**************************************************************************/
/* First thing to do - initialize callbacks */
l_ret = setjmp(st_fatal_error_jmp_buf);
if (l_ret != 0) {
/* Returned here from a longjmp() call */
return(st_fatal_isapnp_error_code);
}
callbacks_init(pnpdump_fatal_error_callback,
in_args_p->m_non_fatal_error_callback_p,
in_args_p->m_progress_report_callback_p);
/**************************************************************************/
if (acquire_pnp_io_privileges() != 0) {
return(ISAPNP_E_PNPACC_NO_PERMISSION);
}
/**************************************************************************/
/* Have to do this anyway to check readport for clashes */
alloc_system_resources();
#ifdef REALTIME
setroundrobin(in_args_p->m_realtime_timeout);
#endif /* REALTIME */
/**************************************************************************/
/* Now get board info */
/* It is to be noted that the following code is kludge, and it should be
** cleaned up in a future version of the libisapnp library.
*/
/* Arguments for initiate() */
do_fullreset = in_args_p->m_reset_flag;
do_ignorecsum = in_args_p->m_ignore_csum_flag;
debug_isolate = in_args_p->m_debug_flag;
boards_found = (in_args_p->m_numcards >= 0) ? in_args_p->m_numcards : 0;
read_port = (in_args_p->m_readport >= 0) ? in_args_p->m_readport : 0;
initiate();
/* Retrieve actual No. of boards found and actual read_port used. */
out_results_p->m_numcards_found = boards_found;
out_results_p->m_readport_found = read_port;
/* Actually retrieve board information */
out_results_p->m_resource_p = NULL;
out_results_p->m_resource_count = 0;
for (l_card_index = 1;
l_card_index <= out_results_p->m_numcards_found;
l_card_index++) {
read_board(l_card_index,
&out_results_p->m_resource_p,
&out_results_p->m_resource_count);
/* Here one could call dumpregs() (or equivalent) if one wants
** the detailed information from the card's registers.
*/
}
/* Finished getting board information. */
#ifdef REALTIME
/* No longer need real-time scheduling */
normal_sched();
#endif /* REALTIME */
/* Release resources */
if (relinquish_pnp_io_privileges() != 0) {
return(ISAPNP_E_PNPACC_NO_PERMS_RELEASE);
}
return(0);
}
/****************************************************************************/
/* End of pnp-access.c */
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