WebSVN – f9daq – Blame – //drivers/wiener_pcivme_dll/pcivme_ni_NT.c

Rev	Author	Line No.	Line
16	f9daq	1	//-------------------------------------------------------------------------------------------
		2	// pcivme_ni_NT.c - a ni labview dll skeleton for the ARW pcivme interface, winNT
		3	//
		4	// (c) 1999-2004 ARW Elektronik, Germany
		5	//
		6	// this source code is published under GPL (Open Source). You can use, redistrubute and
		7	// modify it unless this header is not modified or deleted. No warranty is given that
		8	// this software will work like expected.
		9	// This product is not authorized for use as critical component in life support systems
		10	// wihout the express written approval of ARW Elektronik Germany.
		11	//
		12	// Please announce changes and hints to ARW Elektronik
		13	//
		14	// $Log: pcivme_ni_NT.c,v $
		15	// Revision 1.2 2004/07/24 07:47:00 klaus
		16	// Update copyright to 2004
		17	//
		18	// Revision 1.1.1.1 2003/11/14 23:17:18 klaus
		19	// First put into repository
		20	//
		21	// Revision 1.4 2002/10/27 21:32:35 klaus
		22	// compatibility improved
		23	//
		24	// Revision 1.3 2002/10/27 19:22:58 klaus
		25	// backward compatibilty problem for 2 Gbyte limit solved
		26	//
		27	// Revision 1.2 2002/10/27 17:05:33 klaus
		28	// CVS log added, file addressing bug > 2 Gbtye circumvent
		29	//
		30	// what who when
		31	// first steps AR 07.11.1999
		32	//
		33
		34	//-------------------------------------------------------------------------------------------
		35	// INCLUDES
		36	//
		37	#include <windows.h>
		38	#include <winioctl.h>
		39	#include <pcivme.h> // header for win-NT
		40	#include <vic.h>
		41	#include <vme.h>
		42	#include <pcivme_ni_NT.h>
		43	#include <Klist.h>
		44
42	f9daq	45	#include <stdio.h>
		46	FILE *vmefp;
16	f9daq	47	//-------------------------------------------------------------------------------------------
		48	// DEFINES
		49	//
		50	#define DEFDEVICENAME "\\\\.\\PCIVME:\\VMEMMxx"
		51	#define LIMIT_2GBYTE 0x80000000 // 2 GByte addressing limit of WINNT ...
		52
		53	//-------------------------------------------------------------------------------------------
		54	// TYPEDEFS
		55	//
		56	typedef struct // a element associated to a open path (between VMEinit and VMEclose)
		57	{
		58	HANDLE nHandle;
		59	PCIVME_ACCESS_COMMAND access;
		60	} OPEN_PATH;
		61
		62	//-------------------------------------------------------------------------------------------
		63	// LOCALS
		64	//
		65	// user initialisation table for pcivme
		66	static PCIVME_INIT_COMMAND sUserInitStruct = {2, {{STOP, WORD_ACCESS, 0, 0}}};
		67	// user deinitialisation table
		68	static PCIVME_INIT_COMMAND sUserDeInitStruct = {2, {{STOP, WORD_ACCESS, 0, 0}}};
		69
		70	// the list of Path specific data (a element lives between VMEinit and VMEclose)
		71	static LIST liPathList = (LIST)NULL;
		72
		73	//-------------------------------------------------------------------------------------------
		74	// EXTERNALS
		75	//
		76
		77	//-------------------------------------------------------------------------------------------
		78	// GLOBALS
		79	//
		80
		81	//-------------------------------------------------------------------------------------------
		82	// FUNCTIONS
		83	//
		84	// not only delete a element - even remove the whole list if it is empty
		85	static void removeListElement(OPEN_PATH *open_path)
		86	{
		87	List_Delete((LPVOID)open_path);
		88
		89	// remove the list if the last item was deleted ----
		90	if ((liPathList != NULL) && (List_IsEmpty(liPathList) == TRUE))
		91	{
		92	List_Destroy(&liPathList);
		93	liPathList = (LIST)NULL;
		94	}
		95	}
		96
		97	//-------------------------------------------------------------------------
		98	// create a DeviceName out of cszDeviceName and nIfcNum
		99	static char DeviceName(const char cszDeviceName, int nIfcNum)
		100	{
		101	static char buffer[255];
		102	char *ptr = buffer;
		103
		104	if (cszDeviceName == NULL)
42	f9daq	105	strcpy_s(buffer, 255 , DEFDEVICENAME);
16	f9daq	106	else
42	f9daq	107	strcpy_s(buffer, 255 , cszDeviceName);
16	f9daq	108
		109	while (*ptr) ptr++;
		110
		111	do
		112	{
		113	ptr--;
		114	} while (*ptr != 'M');
		115
		116	ptr++;
		117
		118	if (nIfcNum >= 10)
		119	{
		120	*ptr++ = '1';
		121	nIfcNum -= 10;
		122	}
		123
		124	*ptr++ = '0' + nIfcNum;
		125	*ptr = 0;
		126
		127	return buffer;
		128	}
		129
		130	int VMEinitNT(const char cszDeviceName, unsigned short nVMEMM, unsigned char ubAddressModifier, int pnHandle)
		131	{
		132	OPEN_PATH *open_path;
		133	DWORD DIOC_count; // count of returned bytes of DeviceIoControl
42	f9daq	134	DWORD result = 0;
		135	vmefp = fopen("pcivme_ni.log","w");
		136	fprintf(vmefp, "VMEinitNT\n");
16	f9daq	137	if (liPathList == NULL) // create a list to hold the paths and its variables
		138	{
		139	liPathList = List_Create();
		140	if (liPathList == (LIST)NULL)
		141	return GetLastError();
		142	}
		143
		144	open_path = (OPEN_PATH *)List_NewFirst(liPathList, sizeof(OPEN_PATH));
		145
		146	*pnHandle = -1;
		147
		148	if ((open_path->nHandle = CreateFile(
		149	DeviceName(cszDeviceName, nVMEMM),
		150	GENERIC_READ \| GENERIC_WRITE,
		151	0,
		152	NULL,
		153	OPEN_EXISTING,
		154	FILE_ATTRIBUTE_NORMAL,
		155	NULL)) != ((HANDLE)-1))
		156	{
		157	// init hardware (only one time after the first init it works OK)
		158	result = DeviceIoControl(open_path->nHandle,
		159	PCIVME_INIT_HARDWARE,
		160	&sUserInitStruct,
		161	(DWORD)sizeof(sUserInitStruct),
		162	NULL,
		163	(DWORD)0,
		164	&DIOC_count,
		165	NULL);
		166
		167	// set the current access parameters ------------------
		168	open_path->access.bAddressModifier = ubAddressModifier;
		169	open_path->access.bAccessType =
		170	open_path->access.bIncrement = BYTE_ACCESS;
		171	open_path->access.dwAccessBase = 0;
		172
		173	result = DeviceIoControl(open_path->nHandle,
		174	PCIVME_SET_ACCESS_PARA,
		175	&open_path->access,
		176	(DWORD)sizeof(open_path->access),
		177	NULL,
		178	0,
		179	&DIOC_count,
42	f9daq	180	NULL);
		181
16	f9daq	182
		183	if (!result)
		184	{
42	f9daq	185
16	f9daq	186	result = GetLastError();
42	f9daq	187	fprintf(vmefp, "DeviceIoControl result=%d\n", result);
		188	fclose(vmefp);
16	f9daq	189	CloseHandle(open_path->nHandle);
		190	removeListElement(open_path);
		191	return result;
		192	}
		193
		194	*pnHandle = (int)open_path;
		195
		196	return 0;
		197	}
		198	else
		199	{
42	f9daq	200
16	f9daq	201	result = GetLastError();
42	f9daq	202	fprintf(vmefp, "CreateFile error result=%d %s\n", result, DeviceName(cszDeviceName, nVMEMM));
		203	fclose(vmefp);
16	f9daq	204	removeListElement(open_path);
		205	return result;
		206	}
		207	}
		208
		209	int VMEreadNT(int nHandle, unsigned long ulAddress, unsigned char ubAccessWidth, unsigned long ulElementCount, void *pvBuffer)
		210	{
		211	DWORD DIOC_count; // count of returned bytes of DeviceIoControl
		212	unsigned long ulNumberOfBytes = ulElementCount * ubAccessWidth;
		213	unsigned long bytesRead;
		214	OPEN_PATH open_path = (OPEN_PATH )nHandle;
		215
		216	if (nHandle == -1) return ERROR_PATH_NOT_FOUND;
		217
		218	// set the current access parameters ------------------
		219	open_path->access.bAccessType =
		220	open_path->access.bIncrement = ubAccessWidth;
		221
		222	// take care of only 2 Gbyte addressing capabilities of WINNT ...
		223	if (ulAddress >= LIMIT_2GBYTE)
		224	{
		225	ulAddress -= LIMIT_2GBYTE;
		226	open_path->access.dwAccessBase = LIMIT_2GBYTE;
		227	}
		228	else
		229	open_path->access.dwAccessBase = 0;
		230
		231	if (!DeviceIoControl(open_path->nHandle,
		232	PCIVME_SET_ACCESS_PARA,
		233	&open_path->access,
		234	(DWORD)sizeof(open_path->access),
		235	NULL,
		236	0,
		237	&DIOC_count,
		238	NULL))
		239	return GetLastError();
		240
		241	SetFilePointer(open_path->nHandle, ulAddress, NULL, FILE_BEGIN);
		242
		243	if (!ReadFile(open_path->nHandle, pvBuffer, ulNumberOfBytes, &bytesRead, NULL))
		244	return GetLastError();
		245
		246	return 0;
		247	}
		248
		249	int VMEwriteNT(int nHandle, unsigned long ulAddress, unsigned char ubAccessWidth, unsigned long ulElementCount, void *pvBuffer)
		250	{
		251	DWORD DIOC_count; // count of returned bytes of DeviceIoControl
		252	unsigned long ulNumberOfBytes = ulElementCount * ubAccessWidth;
		253	unsigned long bytesRead;
		254	OPEN_PATH open_path = (OPEN_PATH )nHandle;
		255
		256	if (nHandle == -1) return ERROR_PATH_NOT_FOUND;
		257
		258	// set the current access parameters ------------------
		259	open_path->access.bAccessType =
		260	open_path->access.bIncrement = ubAccessWidth;
		261
		262	// take care of only 2 Gbyte addressing capabilities of WINNT ...
		263	if (ulAddress >= LIMIT_2GBYTE)
		264	{
		265	ulAddress -= LIMIT_2GBYTE;
		266	open_path->access.dwAccessBase = LIMIT_2GBYTE;
		267	}
		268	else
		269	open_path->access.dwAccessBase = 0;
		270
		271	if (!DeviceIoControl(open_path->nHandle,
		272	PCIVME_SET_ACCESS_PARA,
		273	&open_path->access,
		274	(DWORD)sizeof(open_path->access),
		275	NULL,
		276	0,
		277	&DIOC_count,
		278	NULL))
		279	return GetLastError();
		280
		281	SetFilePointer(open_path->nHandle, ulAddress, NULL, FILE_BEGIN);
		282
		283	if (!WriteFile(open_path->nHandle, pvBuffer, ulNumberOfBytes, &bytesRead, NULL))
		284	return GetLastError();
		285
		286	return 0;
		287	}
		288
		289	int VMEaccessVICNT(int nHandle, unsigned char ubAccessMode, unsigned short uwAddress, unsigned char *ubContent)
		290	{
		291	DWORD DIOC_count; // count of returned bytes of DeviceIoControl
		292	OPEN_PATH open_path = (OPEN_PATH )nHandle;
		293	PCIVME_VIC68A_ACTION sAction; // structure to access vic chip
		294	DWORD result;
		295
		296	if (nHandle == -1) return ERROR_PATH_NOT_FOUND;
		297
		298	sAction.wRegisterAddress = uwAddress;
		299	sAction.wAccessMode = ubAccessMode;
		300	sAction.bContent = *ubContent;
		301
		302	result = DeviceIoControl(open_path->nHandle, PCIVME_ACCESS_VIC68A,
		303	&sAction, sizeof(sAction), &sAction,
		304	sizeof(sAction), &DIOC_count, NULL);
		305
		306	*ubContent = sAction.bContent;
		307
		308	if (!result)
		309	return GetLastError();
		310	else
		311	return 0;
		312	}
		313
		314	int VMEresetNT(int nHandle)
		315	{
		316	DWORD DIOC_count; // count of returned bytes of DeviceIoControl
		317	OPEN_PATH open_path = (OPEN_PATH )nHandle;
		318	DWORD result;
		319	PCIVME_RESET_COMMAND reset_command;
		320	PCIVME_RESET_RESULT reset_result;
		321
		322	if (nHandle == -1) return ERROR_PATH_NOT_FOUND;
		323
		324	reset_command.wCommand = VME_RESET_CMD;
		325	reset_result.wResult = 0;
		326	result = DeviceIoControl(open_path->nHandle, PCIVME_RESET,
		327	&reset_command, sizeof(reset_command),
		328	&reset_result, sizeof(reset_result),
		329	&DIOC_count, NULL);
		330
		331	if (!result)
		332	return GetLastError();
		333	else
		334	{
		335	result = 1;
		336
		337	while (reset_result.wResult && result)
		338	{
		339	reset_command.wCommand = POLL_RESET_CMD;
		340	result = DeviceIoControl(open_path->nHandle, PCIVME_RESET,
		341	&reset_command, sizeof(reset_command),
		342	&reset_result, sizeof(reset_result),
		343	&DIOC_count, NULL);
		344	Sleep(10);
		345	}
		346	}
		347
		348	if (!result)
		349	return GetLastError();
		350	else
		351	return 0;
		352	}
		353
		354	int VMETASNT(int nHandle, unsigned long ulAddress, unsigned char *ubResult)
		355	{
		356	DWORD DIOC_count; // count of returned bytes of DeviceIoControl
		357	OPEN_PATH open_path = (OPEN_PATH )nHandle;
		358	PCIVME_TAS_STRUCT sTAS; // structure to do a Test and Set
		359	DWORD result;
		360
		361	if (nHandle == -1) return ERROR_PATH_NOT_FOUND;
		362
		363	sTAS.wModifier = open_path->access.bAddressModifier;
		364	sTAS.dwAddress = ulAddress;
		365	sTAS.bContent = 0x80;
		366
		367	result = DeviceIoControl(open_path->nHandle, PCIVME_TAS,
		368	&sTAS, (DWORD)sizeof(sTAS), &sTAS,
		369	(DWORD)sizeof(sTAS), &DIOC_count, NULL);
		370
		371	*ubResult = sTAS.bContent;
		372
		373	if (!result)
		374	return GetLastError();
		375	else
		376	return 0;
		377	}
		378
		379	int VMEinterruptNT(int nHandle, unsigned char *ubVector)
		380	{
		381	// DWORD DIOC_count; // count of returned bytes of DeviceIoControl
		382	OPEN_PATH open_path = (OPEN_PATH )nHandle;
		383
		384	if (nHandle == -1) return ERROR_PATH_NOT_FOUND;
		385
		386	return 0;
		387	}
		388
		389	int VMEsysfailGetNT(int nHandle, BOOLEAN *bResult)
		390	{
		391	DWORD DIOC_count; // count of returned bytes of DeviceIoControl
		392	OPEN_PATH open_path = (OPEN_PATH )nHandle;
		393	PCIVME_VIC68A_ACTION sAction; // structure to access vic chip
		394	DWORD result;
		395
		396	if (nHandle == -1) return ERROR_PATH_NOT_FOUND;
		397
		398	sAction.wRegisterAddress = EGICR;
		399	sAction.wAccessMode = VIC68A_READ;
		400	sAction.bContent = 0;
		401
		402	result = DeviceIoControl(open_path->nHandle, PCIVME_ACCESS_VIC68A,
		403	&sAction, sizeof(sAction), &sAction,
		404	sizeof(sAction), &DIOC_count, NULL);
		405
		406
		407	*bResult = (sAction.bContent & 0x08) ? FALSE : TRUE;
		408
		409	if (!result)
		410	return GetLastError();
		411	else
		412	return 0;
		413	}
		414
		415	int VMEsysfailSetNT(int nHandle, BOOLEAN bForce)
		416	{
		417	DWORD DIOC_count; // count of returned bytes of DeviceIoControl
		418	OPEN_PATH open_path = (OPEN_PATH )nHandle;
		419	PCIVME_VIC68A_ACTION sAction; // structure to access vic chip
		420	DWORD result;
		421
		422	if (nHandle == -1) return ERROR_PATH_NOT_FOUND;
		423
		424	sAction.wRegisterAddress = ICR7;
		425	sAction.wAccessMode = (bForce == TRUE) ? VIC68A_AND : VIC68A_OR;
		426	sAction.bContent = (bForce == TRUE) ? 0x3F : 0x80;
		427
		428	result = DeviceIoControl(open_path->nHandle, PCIVME_ACCESS_VIC68A,
		429	&sAction, (DWORD)sizeof(sAction), &sAction,
		430	(DWORD)sizeof(sAction), &DIOC_count, NULL);
		431	if (!result)
		432	return GetLastError();
		433	else
		434	return 0;
		435	}
		436
		437	int VMEcloseNT(int nHandle)
		438	{
		439	DWORD DIOC_count; // count of returned bytes of DeviceIoControl
		440	OPEN_PATH open_path = (OPEN_PATH )nHandle;
		441
		442	if (nHandle == -1) return ERROR_PATH_NOT_FOUND;
		443
		444	DeviceIoControl(open_path->nHandle,
		445	PCIVME_DEINIT_HARDWARE,
		446	&sUserDeInitStruct,
		447	(DWORD)sizeof(sUserDeInitStruct),
		448	NULL,
		449	0,
		450	&DIOC_count,
		451	NULL);
		452
		453	CloseHandle(open_path->nHandle);
		454	removeListElement(open_path);
		455
		456	return 0;
		457	}
		458

Subversion Repositories f9daq

(root)//drivers/wiener_pcivme_dll/pcivme_ni_NT.c – Rev 179