116 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			116 lines
		
	
	
		
			2.6 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/* $Id: diddfunc.c,v 1.14.6.2 2004/08/28 20:03:53 armin Exp $
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 *
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 * DIDD Interface module for Eicon active cards.
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 * 
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 * Functions are in dadapter.c 
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 * 
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 * Copyright 2002-2003 by Armin Schindler (mac@melware.de) 
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 * Copyright 2002-2003 Cytronics & Melware (info@melware.de)
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 * 
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 * This software may be used and distributed according to the terms
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 * of the GNU General Public License, incorporated herein by reference.
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 */
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#include "platform.h"
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#include "di_defs.h"
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#include "dadapter.h"
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#include "divasync.h"
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#define DBG_MINIMUM  (DL_LOG + DL_FTL + DL_ERR)
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#define DBG_DEFAULT  (DBG_MINIMUM + DL_XLOG + DL_REG)
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extern void DIVA_DIDD_Read(void *, int);
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extern char *DRIVERRELEASE_DIDD;
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static dword notify_handle;
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static DESCRIPTOR _DAdapter;
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/*
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 * didd callback function
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 */
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static void *didd_callback(void *context, DESCRIPTOR * adapter,
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			   int removal)
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{
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	if (adapter->type == IDI_DADAPTER) {
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		DBG_ERR(("Notification about IDI_DADAPTER change ! Oops."))
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		return (NULL);
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	} else if (adapter->type == IDI_DIMAINT) {
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		if (removal) {
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			DbgDeregister();
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		} else {
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			DbgRegister("DIDD", DRIVERRELEASE_DIDD, DBG_DEFAULT);
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		}
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	}
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	return (NULL);
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}
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/*
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 * connect to didd
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 */
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static int DIVA_INIT_FUNCTION connect_didd(void)
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{
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	int x = 0;
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	int dadapter = 0;
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	IDI_SYNC_REQ req;
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	DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS];
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	DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table));
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	for (x = 0; x < MAX_DESCRIPTORS; x++) {
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		if (DIDD_Table[x].type == IDI_DADAPTER) {	/* DADAPTER found */
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			dadapter = 1;
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			memcpy(&_DAdapter, &DIDD_Table[x], sizeof(_DAdapter));
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			req.didd_notify.e.Req = 0;
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			req.didd_notify.e.Rc =
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			    IDI_SYNC_REQ_DIDD_REGISTER_ADAPTER_NOTIFY;
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			req.didd_notify.info.callback = (void *)didd_callback;
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			req.didd_notify.info.context = NULL;
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			_DAdapter.request((ENTITY *) & req);
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			if (req.didd_notify.e.Rc != 0xff)
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				return (0);
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			notify_handle = req.didd_notify.info.handle;
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		} else if (DIDD_Table[x].type == IDI_DIMAINT) {	/* MAINT found */
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			DbgRegister("DIDD", DRIVERRELEASE_DIDD, DBG_DEFAULT);
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		}
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	}
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	return (dadapter);
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}
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/*
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 * disconnect from didd
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 */
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static void DIVA_EXIT_FUNCTION disconnect_didd(void)
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{
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	IDI_SYNC_REQ req;
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	req.didd_notify.e.Req = 0;
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	req.didd_notify.e.Rc = IDI_SYNC_REQ_DIDD_REMOVE_ADAPTER_NOTIFY;
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	req.didd_notify.info.handle = notify_handle;
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	_DAdapter.request((ENTITY *) & req);
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}
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/*
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 * init
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 */
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int DIVA_INIT_FUNCTION diddfunc_init(void)
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{
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	diva_didd_load_time_init();
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	if (!connect_didd()) {
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		DBG_ERR(("init: failed to connect to DIDD."))
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		diva_didd_load_time_finit();
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		return (0);
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	}
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	return (1);
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}
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/*
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 * finit
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 */
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void DIVA_EXIT_FUNCTION diddfunc_finit(void)
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{
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	DbgDeregister();
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	disconnect_didd();
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	diva_didd_load_time_finit();
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}
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