1 /***********************************************************************
2 ;*	File Name : TMSCSIM.H					       *
3 ;*		    TEKRAM DC-390(T) PCI SCSI Bus Master Host Adapter  *
4 ;*		    Device Driver				       *
5 ;***********************************************************************/
6 /* $Id: tmscsim.h,v 2.15.2.3 2000/11/17 20:52:27 garloff Exp $ */
7 
8 #ifndef _TMSCSIM_H
9 #define _TMSCSIM_H
10 
11 #include <linux/types.h>
12 #include <linux/config.h>
13 
14 #define SCSI_IRQ_NONE 255
15 
16 #define MAX_ADAPTER_NUM 	4
17 #define MAX_SG_LIST_BUF 	16	/* Not used */
18 #define MAX_CMD_PER_LUN 	32
19 #define MAX_CMD_QUEUE		MAX_CMD_PER_LUN+MAX_CMD_PER_LUN/2+1
20 #define MAX_SCSI_ID		8
21 #define MAX_SRB_CNT		MAX_CMD_QUEUE+1	/* Max number of started commands */
22 
23 #define SEL_TIMEOUT		153	/* 250 ms selection timeout (@ 40 MHz) */
24 
25 #define END_SCAN		2
26 
27 typedef u8		UCHAR;	/*  8 bits */
28 typedef u16		USHORT;	/* 16 bits */
29 typedef u32		UINT;	/* 32 bits */
30 typedef unsigned long	ULONG;	/* 32/64 bits */
31 
32 typedef UCHAR		*PUCHAR;
33 typedef USHORT		*PUSHORT;
34 typedef UINT		*PUINT;
35 typedef ULONG		*PULONG;
36 typedef Scsi_Host_Template	*PSHT;
37 typedef struct Scsi_Host	*PSH;
38 typedef Scsi_Device	*PSCSIDEV;
39 typedef Scsi_Cmnd	*PSCSICMD;
40 typedef void		*PVOID;
41 typedef struct scatterlist  *PSGL, SGL;
42 
43 
44 /*;-----------------------------------------------------------------------*/
45 typedef  struct  _SyncMsg
46 {
47 UCHAR		ExtendMsg;
48 UCHAR		ExtMsgLen;
49 UCHAR		SyncXferReq;
50 UCHAR		Period;
51 UCHAR		ReqOffset;
52 } SyncMsg;
53 /*;-----------------------------------------------------------------------*/
54 typedef  struct  _Capacity
55 {
56 ULONG		BlockCount;
57 ULONG		BlockLength;
58 } Capacity;
59 /*;-----------------------------------------------------------------------*/
60 typedef  struct  _SGentry
61 {
62 ULONG		SGXferDataPtr;
63 ULONG		SGXferDataLen;
64 } SGentry;
65 
66 typedef  struct  _SGentry1
67 {
68 ULONG		SGXLen;
69 ULONG		SGXPtr;
70 } SGentry1, *PSGE;
71 
72 
73 /*
74 ;-----------------------------------------------------------------------
75 ; SCSI Request Block
76 ;-----------------------------------------------------------------------
77 */
78 struct	_SRB
79 {
80 //UCHAR		CmdBlock[12];
81 
82 struct _SRB	*pNextSRB;
83 struct _DCB	*pSRBDCB;
84 PSCSICMD	pcmd;
85 PSGL		pSegmentList;
86 
87 /* 0x10: */
88 SGL		Segmentx;	/* make a one entry of S/G list table */
89 
90 /* 0x1c: */
91 ULONG		SGBusAddr;	/*;a segment starting address as seen by AM53C974A*/
92 ULONG		SGToBeXferLen;	/*; to be xfer length */
93 ULONG		TotalXferredLen;
94 ULONG		SavedTotXLen;
95 UINT		SRBState;
96 
97 /* 0x30: */
98 UCHAR		SRBStatus;
99 UCHAR		SRBFlag;	/*; b0-AutoReqSense,b6-Read,b7-write */
100 				/*; b4-settimeout,b5-Residual valid */
101 UCHAR		AdaptStatus;
102 UCHAR		TargetStatus;
103 
104 UCHAR		ScsiPhase;
105 UCHAR		TagNumber;
106 UCHAR		SGIndex;
107 UCHAR		SGcount;
108 
109 /* 0x38: */
110 UCHAR		MsgCnt;
111 UCHAR		EndMessage;
112 UCHAR		RetryCnt;
113 UCHAR		SavedSGCount;
114 
115 ULONG		Saved_Ptr;
116 
117 /* 0x40: */
118 UCHAR		MsgInBuf[6];
119 UCHAR		MsgOutBuf[6];
120 
121 //UCHAR		IORBFlag;	/*;81h-Reset, 2-retry */
122 /* 0x4c: */
123 };
124 
125 
126 typedef  struct  _SRB	 DC390_SRB, *PSRB;
127 
128 /*
129 ;-----------------------------------------------------------------------
130 ; Device Control Block
131 ;-----------------------------------------------------------------------
132 */
133 struct	_DCB
134 {
135 struct _DCB	*pNextDCB;
136 struct _ACB	*pDCBACB;
137 
138 /* Aborted Commands */
139 //PSCSICMD	AboIORBhead;
140 //PSCSICMD	AboIORBtail;
141 //ULONG		AboIORBcnt;
142 
143 /* 0x08: */
144 /* Queued SRBs */
145 PSRB		pWaitingSRB;
146 PSRB		pWaitLast;
147 PSRB		pGoingSRB;
148 PSRB		pGoingLast;
149 PSRB		pActiveSRB;
150 UCHAR		WaitSRBCnt;	/* Not used */
151 UCHAR		GoingSRBCnt;
152 
153 UCHAR		DevType;
154 UCHAR		MaxCommand;
155 
156 /* 0x20: */
157 UINT		TagMask;
158 
159 UCHAR		TargetID;	/*; SCSI Target ID  (SCSI Only) */
160 UCHAR		TargetLUN;	/*; SCSI Log.  Unit (SCSI Only) */
161 UCHAR		DevMode;
162 UCHAR		DCBFlag;
163 
164 UCHAR		CtrlR1;
165 UCHAR		CtrlR3;
166 UCHAR		CtrlR4;
167 UCHAR		Inquiry7;
168 
169 /* 0x2c: */
170 UCHAR		SyncMode;	/*; 0:async mode */
171 UCHAR		NegoPeriod;	/*;for nego. */
172 UCHAR		SyncPeriod;	/*;for reg. */
173 UCHAR		SyncOffset;	/*;for reg. and nego.(low nibble) */
174 
175 /* 0x30:*/
176 //UCHAR		InqDataBuf[8];
177 //UCHAR		CapacityBuf[8];
178 ///* 0x40: */
179 };
180 
181 typedef  struct  _DCB	 DC390_DCB, *PDCB;
182 /*
183 ;-----------------------------------------------------------------------
184 ; Adapter Control Block
185 ;-----------------------------------------------------------------------
186 */
187 struct	_ACB
188 {
189 PSH		pScsiHost;
190 struct _ACB	*pNextACB;
191 USHORT		IOPortBase;
192 UCHAR		IRQLevel;
193 UCHAR		status;
194 
195 UCHAR		SRBCount;
196 UCHAR		AdapterIndex;	/*; nth Adapter this driver */
197 UCHAR		DeviceCnt;
198 UCHAR		DCBCnt;
199 
200 /* 0x10: */
201 UCHAR		TagMaxNum;
202 UCHAR		ACBFlag;
203 UCHAR		Gmode2;
204 UCHAR		scan_devices;
205 
206 PDCB		pLinkDCB;
207 PDCB		pLastDCB;
208 PDCB		pDCBRunRobin;
209 
210 PDCB		pActiveDCB;
211 PSRB		pFreeSRB;
212 PSRB		pTmpSRB;
213 
214 /* 0x2c: */
215 ULONG		QueryCnt;
216 PSCSICMD	pQueryHead;
217 PSCSICMD	pQueryTail;
218 
219 /* 0x38: */
220 UCHAR		msgin123[4];
221 UCHAR		DCBmap[MAX_SCSI_ID];
222 UCHAR		Connected;
223 UCHAR		pad;
224 
225 /* 0x3c: */
226 #if defined(USE_SPINLOCKS) && USE_SPINLOCKS > 1 && (defined(CONFIG_SMP) || DEBUG_SPINLOCKS > 0)
227 spinlock_t	lock;
228 #endif
229 UCHAR		sel_timeout;
230 UCHAR		glitch_cfg;
231 
232 UCHAR		MsgLen;
233 UCHAR		Ignore_IRQ;	/* Not used */
234 
235 PDEVDECL1;			/* Pointer to PCI cfg. space */
236 /* 0x4c/0x48: */
237 ULONG		Cmds;
238 UINT		SelLost;
239 UINT		SelConn;
240 UINT		CmdInQ;
241 UINT		CmdOutOfSRB;
242 
243 /* 0x60/0x5c: */
244 struct timer_list	Waiting_Timer;
245 /* 0x74/0x70: */
246 DC390_SRB	TmpSRB;
247 /* 0xd8/0xd4: */
248 DC390_SRB	SRB_array[MAX_SRB_CNT]; 	/* 50 SRBs */
249 /* 0xfb0/0xfac: */
250 };
251 
252 typedef  struct  _ACB	 DC390_ACB, *PACB;
253 
254 /*;-----------------------------------------------------------------------*/
255 
256 
257 #define BIT31	0x80000000
258 #define BIT30	0x40000000
259 #define BIT29	0x20000000
260 #define BIT28	0x10000000
261 #define BIT27	0x08000000
262 #define BIT26	0x04000000
263 #define BIT25	0x02000000
264 #define BIT24	0x01000000
265 #define BIT23	0x00800000
266 #define BIT22	0x00400000
267 #define BIT21	0x00200000
268 #define BIT20	0x00100000
269 #define BIT19	0x00080000
270 #define BIT18	0x00040000
271 #define BIT17	0x00020000
272 #define BIT16	0x00010000
273 #define BIT15	0x00008000
274 #define BIT14	0x00004000
275 #define BIT13	0x00002000
276 #define BIT12	0x00001000
277 #define BIT11	0x00000800
278 #define BIT10	0x00000400
279 #define BIT9	0x00000200
280 #define BIT8	0x00000100
281 #define BIT7	0x00000080
282 #define BIT6	0x00000040
283 #define BIT5	0x00000020
284 #define BIT4	0x00000010
285 #define BIT3	0x00000008
286 #define BIT2	0x00000004
287 #define BIT1	0x00000002
288 #define BIT0	0x00000001
289 
290 /*;---UnitCtrlFlag */
291 #define UNIT_ALLOCATED	BIT0
292 #define UNIT_INFO_CHANGED BIT1
293 #define FORMATING_MEDIA BIT2
294 #define UNIT_RETRY	BIT3
295 
296 /*;---UnitFlags */
297 #define DASD_SUPPORT	BIT0
298 #define SCSI_SUPPORT	BIT1
299 #define ASPI_SUPPORT	BIT2
300 
301 /*;----SRBState machine definition */
302 #define SRB_FREE	0
303 #define SRB_WAIT	BIT0
304 #define SRB_READY	BIT1
305 #define SRB_MSGOUT	BIT2	/*;arbitration+msg_out 1st byte*/
306 #define SRB_MSGIN	BIT3
307 #define SRB_MSGIN_MULTI BIT4
308 #define SRB_COMMAND	BIT5
309 #define SRB_START_	BIT6	/*;arbitration+msg_out+command_out*/
310 #define SRB_DISCONNECT	BIT7
311 #define SRB_DATA_XFER	BIT8
312 #define SRB_XFERPAD	BIT9
313 #define SRB_STATUS	BIT10
314 #define SRB_COMPLETED	BIT11
315 #define SRB_ABORT_SENT	BIT12
316 #define DO_SYNC_NEGO	BIT13
317 #define SRB_UNEXPECT_RESEL BIT14
318 
319 /*;---SRBstatus */
320 #define SRB_OK		BIT0
321 #define ABORTION	BIT1
322 #define OVER_RUN	BIT2
323 #define UNDER_RUN	BIT3
324 #define PARITY_ERROR	BIT4
325 #define SRB_ERROR	BIT5
326 
327 /*;---ACBFlag */
328 #define RESET_DEV	BIT0
329 #define RESET_DETECT	BIT1
330 #define RESET_DONE	BIT2
331 
332 /*;---DCBFlag */
333 #define ABORT_DEV_	BIT0
334 
335 /*;---SRBFlag */
336 #define DATAOUT 	BIT7
337 #define DATAIN		BIT6
338 #define RESIDUAL_VALID	BIT5
339 #define ENABLE_TIMER	BIT4
340 #define RESET_DEV0	BIT2
341 #define ABORT_DEV	BIT1
342 #define AUTO_REQSENSE	BIT0
343 
344 /*;---Adapter status */
345 #define H_STATUS_GOOD	 0
346 #define H_SEL_TIMEOUT	 0x11
347 #define H_OVER_UNDER_RUN 0x12
348 #define H_UNEXP_BUS_FREE 0x13
349 #define H_TARGET_PHASE_F 0x14
350 #define H_INVALID_CCB_OP 0x16
351 #define H_LINK_CCB_BAD	 0x17
352 #define H_BAD_TARGET_DIR 0x18
353 #define H_DUPLICATE_CCB  0x19
354 #define H_BAD_CCB_OR_SG  0x1A
355 #define H_ABORT 	 0x0FF
356 
357 /*; SCSI Status byte codes*/
358 /* The values defined in include/scsi/scsi.h, to be shifted << 1 */
359 
360 #define SCSI_STAT_UNEXP_BUS_F	0xFD	/*;  Unexpect Bus Free */
361 #define SCSI_STAT_BUS_RST_DETECT 0xFE	/*;  Scsi Bus Reset detected */
362 #define SCSI_STAT_SEL_TIMEOUT	0xFF	/*;  Selection Time out */
363 
364 /* cmd->result */
365 #define RES_TARGET		0x000000FF	/* Target State */
366 #define RES_TARGET_LNX		STATUS_MASK	/* Only official ... */
367 #define RES_ENDMSG		0x0000FF00	/* End Message */
368 #define RES_DID			0x00FF0000	/* DID_ codes */
369 #define RES_DRV			0xFF000000	/* DRIVER_ codes */
370 
371 #define MK_RES(drv,did,msg,tgt) ((int)(drv)<<24 | (int)(did)<<16 | (int)(msg)<<8 | (int)(tgt))
372 #define MK_RES_LNX(drv,did,msg,tgt) ((int)(drv)<<24 | (int)(did)<<16 | (int)(msg)<<8 | (int)(tgt)<<1)
373 
374 #define SET_RES_TARGET(who,tgt) { who &= ~RES_TARGET; who |= (int)(tgt); }
375 #define SET_RES_TARGET_LNX(who,tgt) { who &= ~RES_TARGET_LNX; who |= (int)(tgt) << 1; }
376 #define SET_RES_MSG(who,msg) { who &= ~RES_ENDMSG; who |= (int)(msg) << 8; }
377 #define SET_RES_DID(who,did) { who &= ~RES_DID; who |= (int)(did) << 16; }
378 #define SET_RES_DRV(who,drv) { who &= ~RES_DRV; who |= (int)(drv) << 24; }
379 
380 /*;---Sync_Mode */
381 #define SYNC_DISABLE	0
382 #define SYNC_ENABLE	BIT0
383 #define SYNC_NEGO_DONE	BIT1
384 #define WIDE_ENABLE	BIT2	/* Not used ;-) */
385 #define WIDE_NEGO_DONE	BIT3	/* Not used ;-) */
386 #define EN_TAG_QUEUEING	BIT4
387 #define EN_ATN_STOP	BIT5
388 
389 #define SYNC_NEGO_OFFSET 15
390 
391 /*;---SCSI bus phase*/
392 #define SCSI_DATA_OUT	0
393 #define SCSI_DATA_IN	1
394 #define SCSI_COMMAND	2
395 #define SCSI_STATUS_	3
396 #define SCSI_NOP0	4
397 #define SCSI_NOP1	5
398 #define SCSI_MSG_OUT	6
399 #define SCSI_MSG_IN	7
400 
401 /*;----SCSI MSG BYTE*/ /* see scsi/scsi.h */ /* One is missing ! */
402 #define ABORT_TAG	0x0d
403 
404 /*
405 **  Inquiry Data format
406 */
407 
408 typedef struct	_SCSIInqData { /* INQUIRY */
409 
410 	UCHAR	 DevType;		/* Periph Qualifier & Periph Dev Type*/
411 	UCHAR	 RMB_TypeMod;		/* rem media bit & Dev Type Modifier */
412 	UCHAR	 Vers;			/* ISO, ECMA, & ANSI versions	     */
413 	UCHAR	 RDF;			/* AEN, TRMIOP, & response data format*/
414 	UCHAR	 AddLen;		/* length of additional data	     */
415 	UCHAR	 Res1;			/* reserved			     */
416 	UCHAR	 Res2;			/* reserved			     */
417 	UCHAR	 Flags; 		/* RelADr,Wbus32,Wbus16,Sync,etc.    */
418 	UCHAR	 VendorID[8];		/* Vendor Identification	     */
419 	UCHAR	 ProductID[16]; 	/* Product Identification	     */
420 	UCHAR	 ProductRev[4]; 	/* Product Revision		     */
421 
422 
423 } SCSI_INQDATA, *PSCSI_INQDATA;
424 
425 
426 /*  Inquiry byte 0 masks */
427 
428 
429 #define SCSI_DEVTYPE	    0x1F      /* Peripheral Device Type 	    */
430 #define SCSI_PERIPHQUAL     0xE0      /* Peripheral Qualifier		    */
431 #define TYPE_NODEV	    SCSI_DEVTYPE    /* Unknown or no device type    */
432 
433 
434 /*  Inquiry byte 1 mask */
435 
436 #define SCSI_REMOVABLE_MEDIA  0x80    /* Removable Media bit (1=removable)  */
437 
438 
439 /*  Peripheral Device Type definitions */
440 /*  see include/scsi/scsi.h for the rest */
441 
442 #ifndef TYPE_PRINTER
443 # define TYPE_PRINTER		 0x02	   /* Printer device		   */
444 #endif
445 #ifndef TYPE_COMM
446 # define TYPE_COMM		 0x09	   /* Communications device	   */
447 #endif
448 
449 /*
450 ** Inquiry flag definitions (Inq data byte 7)
451 */
452 
453 #define SCSI_INQ_RELADR       0x80    /* device supports relative addressing*/
454 #define SCSI_INQ_WBUS32       0x40    /* device supports 32 bit data xfers  */
455 #define SCSI_INQ_WBUS16       0x20    /* device supports 16 bit data xfers  */
456 #define SCSI_INQ_SYNC	      0x10    /* device supports synchronous xfer   */
457 #define SCSI_INQ_LINKED       0x08    /* device supports linked commands    */
458 #define SCSI_INQ_CMDQUEUE     0x02    /* device supports command queueing   */
459 #define SCSI_INQ_SFTRE	      0x01    /* device supports soft resets */
460 
461 
462 /*
463 ;==========================================================
464 ; EEPROM byte offset
465 ;==========================================================
466 */
467 typedef  struct  _EEprom
468 {
469 UCHAR	EE_MODE1;
470 UCHAR	EE_SPEED;
471 UCHAR	xx1;
472 UCHAR	xx2;
473 } EEprom, *PEEprom;
474 
475 #define REAL_EE_ADAPT_SCSI_ID 64
476 #define REAL_EE_MODE2	65
477 #define REAL_EE_DELAY	66
478 #define REAL_EE_TAG_CMD_NUM	67
479 
480 #define EE_ADAPT_SCSI_ID 32
481 #define EE_MODE2	33
482 #define EE_DELAY	34
483 #define EE_TAG_CMD_NUM	35
484 
485 #define EE_LEN		40
486 
487 /*; EE_MODE1 bits definition*/
488 #define PARITY_CHK_	BIT0
489 #define SYNC_NEGO_	BIT1
490 #define EN_DISCONNECT_	BIT2
491 #define SEND_START_	BIT3
492 #define TAG_QUEUEING_	BIT4
493 
494 /*; EE_MODE2 bits definition*/
495 #define MORE2_DRV	BIT0
496 #define GREATER_1G	BIT1
497 #define RST_SCSI_BUS	BIT2
498 #define ACTIVE_NEGATION BIT3
499 #define NO_SEEK 	BIT4
500 #define LUN_CHECK	BIT5
501 
502 #define ENABLE_CE	1
503 #define DISABLE_CE	0
504 #define EEPROM_READ	0x80
505 
506 /*
507 ;==========================================================
508 ;	AMD 53C974 Registers bit Definition
509 ;==========================================================
510 */
511 /*
512 ;====================
513 ; SCSI Register
514 ;====================
515 */
516 
517 /*; Command Reg.(+0CH) (rw) */
518 #define DMA_COMMAND		BIT7
519 #define NOP_CMD 		0
520 #define CLEAR_FIFO_CMD		1
521 #define RST_DEVICE_CMD		2
522 #define RST_SCSI_BUS_CMD	3
523 
524 #define INFO_XFER_CMD		0x10
525 #define INITIATOR_CMD_CMPLTE	0x11
526 #define MSG_ACCEPTED_CMD	0x12
527 #define XFER_PAD_BYTE		0x18
528 #define SET_ATN_CMD		0x1A
529 #define RESET_ATN_CMD		0x1B
530 
531 #define SEL_WO_ATN		0x41	/* currently not used */
532 #define SEL_W_ATN		0x42
533 #define SEL_W_ATN_STOP		0x43
534 #define SEL_W_ATN3		0x46
535 #define EN_SEL_RESEL		0x44
536 #define DIS_SEL_RESEL		0x45	/* currently not used */
537 #define RESEL			0x40	/* " */
538 #define RESEL_ATN3		0x47	/* " */
539 
540 #define DATA_XFER_CMD		INFO_XFER_CMD
541 
542 
543 /*; SCSI Status Reg.(+10H) (r) */
544 #define INTERRUPT		BIT7
545 #define ILLEGAL_OP_ERR		BIT6
546 #define PARITY_ERR		BIT5
547 #define COUNT_2_ZERO		BIT4
548 #define GROUP_CODE_VALID	BIT3
549 #define SCSI_PHASE_MASK 	(BIT2+BIT1+BIT0)
550 /* BIT2: MSG phase; BIT1: C/D physe; BIT0: I/O phase */
551 
552 /*; Interrupt Status Reg.(+14H) (r) */
553 #define SCSI_RESET		BIT7
554 #define INVALID_CMD		BIT6
555 #define DISCONNECTED		BIT5
556 #define SERVICE_REQUEST 	BIT4
557 #define SUCCESSFUL_OP		BIT3
558 #define RESELECTED		BIT2
559 #define SEL_ATTENTION		BIT1
560 #define SELECTED		BIT0
561 
562 /*; Internal State Reg.(+18H) (r) */
563 #define SYNC_OFFSET_FLAG	BIT3
564 #define INTRN_STATE_MASK	(BIT2+BIT1+BIT0)
565 /* 0x04: Sel. successful (w/o stop), 0x01: Sel. successful (w/ stop) */
566 
567 /*; Clock Factor Reg.(+24H) (w) */
568 #define CLK_FREQ_40MHZ		0
569 #define CLK_FREQ_35MHZ		(BIT2+BIT1+BIT0)
570 #define CLK_FREQ_30MHZ		(BIT2+BIT1)
571 #define CLK_FREQ_25MHZ		(BIT2+BIT0)
572 #define CLK_FREQ_20MHZ		BIT2
573 #define CLK_FREQ_15MHZ		(BIT1+BIT0)
574 #define CLK_FREQ_10MHZ		BIT1
575 
576 /*; Control Reg. 1(+20H) (rw) */
577 #define EXTENDED_TIMING 	BIT7
578 #define DIS_INT_ON_SCSI_RST	BIT6
579 #define PARITY_ERR_REPO 	BIT4
580 #define SCSI_ID_ON_BUS		(BIT2+BIT1+BIT0) /* host adapter ID */
581 
582 /*; Control Reg. 2(+2CH) (rw) */
583 #define EN_FEATURE		BIT6
584 #define EN_SCSI2_CMD		BIT3
585 
586 /*; Control Reg. 3(+30H) (rw) */
587 #define ID_MSG_CHECK		BIT7
588 #define EN_QTAG_MSG		BIT6
589 #define EN_GRP2_CMD		BIT5
590 #define FAST_SCSI		BIT4	/* ;10MB/SEC */
591 #define FAST_CLK		BIT3	/* ;25 - 40 MHZ */
592 
593 /*; Control Reg. 4(+34H) (rw) */
594 #define EATER_12NS		0
595 #define EATER_25NS		BIT7
596 #define EATER_35NS		BIT6
597 #define EATER_0NS		(BIT7+BIT6)
598 #define REDUCED_POWER		BIT5
599 #define CTRL4_RESERVED		BIT4	/* must be 1 acc. to AM53C974.c */
600 #define NEGATE_REQACKDATA	BIT2
601 #define NEGATE_REQACK		BIT3
602 
603 #define GLITCH_TO_NS(x) (((~x>>6 & 2) >> 1) | ((x>>6 & 1) << 1 ^ (x>>6 & 2)))
604 #define NS_TO_GLITCH(y) (((~y<<7) | ~((y<<6) ^ ((y<<5 & 1<<6) | ~0x40))) & 0xc0)
605 
606 /*
607 ;====================
608 ; DMA Register
609 ;====================
610 */
611 /*; DMA Command Reg.(+40H) (rw) */
612 #define READ_DIRECTION		BIT7
613 #define WRITE_DIRECTION 	0
614 #define EN_DMA_INT		BIT6
615 #define EN_PAGE_INT		BIT5	/* page transfer interrupt enable */
616 #define MAP_TO_MDL		BIT4
617 #define DIAGNOSTIC		BIT2
618 #define DMA_IDLE_CMD		0
619 #define DMA_BLAST_CMD		BIT0
620 #define DMA_ABORT_CMD		BIT1
621 #define DMA_START_CMD		(BIT1+BIT0)
622 
623 /*; DMA Status Reg.(+54H) (r) */
624 #define PCI_MS_ABORT		BIT6
625 #define BLAST_COMPLETE		BIT5
626 #define SCSI_INTERRUPT		BIT4
627 #define DMA_XFER_DONE		BIT3
628 #define DMA_XFER_ABORT		BIT2
629 #define DMA_XFER_ERROR		BIT1
630 #define POWER_DOWN		BIT0
631 
632 /*; DMA SCSI Bus and Ctrl.(+70H) */
633 #define EN_INT_ON_PCI_ABORT	BIT25
634 #define WRT_ERASE_DMA_STAT	BIT24
635 #define PW_DOWN_CTRL		BIT21
636 #define SCSI_BUSY		BIT20
637 #define SCLK			BIT19
638 #define SCAM			BIT18
639 #define SCSI_LINES		0x0003ffff
640 
641 /*
642 ;==========================================================
643 ; SCSI Chip register address offset
644 ;==========================================================
645 ;Registers are rw unless declared otherwise
646 */
647 #define CtcReg_Low	0x00	/* r	curr. transfer count */
648 #define CtcReg_Mid	0x04	/* r */
649 #define CtcReg_High	0x38	/* r */
650 #define ScsiFifo	0x08
651 #define ScsiCmd 	0x0C
652 #define Scsi_Status	0x10	/* r */
653 #define INT_Status	0x14	/* r */
654 #define Sync_Period	0x18	/* w */
655 #define Sync_Offset	0x1C	/* w */
656 #define Clk_Factor	0x24	/* w */
657 #define CtrlReg1	0x20
658 #define CtrlReg2	0x2C
659 #define CtrlReg3	0x30
660 #define CtrlReg4	0x34
661 #define DMA_Cmd 	0x40
662 #define DMA_XferCnt	0x44	/* rw	starting transfer count (32 bit) */
663 #define DMA_XferAddr	0x48	/* rw	starting physical address (32 bit) */
664 #define DMA_Wk_ByteCntr 0x4C	/* r	working byte counter */
665 #define DMA_Wk_AddrCntr 0x50	/* r	working address counter */
666 #define DMA_Status	0x54	/* r */
667 #define DMA_MDL_Addr	0x58	/* rw	starting MDL address */
668 #define DMA_Wk_MDL_Cntr 0x5C	/* r	working MDL counter */
669 #define DMA_ScsiBusCtrl 0x70	/* rw	SCSI Bus, PCI/DMA Ctrl */
670 
671 #define StcReg_Low	CtcReg_Low	/* w	start transfer count */
672 #define StcReg_Mid	CtcReg_Mid	/* w */
673 #define StcReg_High	CtcReg_High	/* w */
674 #define Scsi_Dest_ID	Scsi_Status	/* w */
675 #define Scsi_TimeOut	INT_Status	/* w */
676 #define Intern_State	Sync_Period	/* r */
677 #define Current_Fifo	Sync_Offset	/* r	Curr. FIFO / int. state */
678 
679 
680 #define DC390_read8(address)			\
681 	(inb (pACB->IOPortBase + (address)))
682 
683 #define DC390_read8_(address, base)		\
684 	(inb ((USHORT)(base) + (address)))
685 
686 #define DC390_read16(address)			\
687 	(inw (pACB->IOPortBase + (address)))
688 
689 #define DC390_read32(address)			\
690 	(inl (pACB->IOPortBase + (address)))
691 
692 #define DC390_write8(address,value)		\
693 	outb ((value), pACB->IOPortBase + (address))
694 
695 #define DC390_write8_(address,value,base)	\
696 	outb ((value), (USHORT)(base) + (address))
697 
698 #define DC390_write16(address,value)		\
699 	outw ((value), pACB->IOPortBase + (address))
700 
701 #define DC390_write32(address,value)		\
702 	outl ((value), pACB->IOPortBase + (address))
703 
704 
705 #endif /* _TMSCSIM_H */
706