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1.1 root 1: /*
2: * Copyright (c) 1988 Regents of the University of California.
3: * All rights reserved.
4: *
5: * This code is derived from software contributed to Berkeley by
6: * Computer Consoles Inc.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
11: * 1. Redistributions of source code must retain the above copyright
12: * notice, this list of conditions and the following disclaimer.
13: * 2. Redistributions in binary form must reproduce the above copyright
14: * notice, this list of conditions and the following disclaimer in the
15: * documentation and/or other materials provided with the distribution.
16: * 3. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by the University of
19: * California, Berkeley and its contributors.
20: * 4. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: *
36: * @(#)vdreg.h 7.7 (Berkeley) 6/28/90
37: */
38:
39: /*
40: * Versabus VDDC/SMDE disk controller definitions.
41: */
42: #define VDDC_SECSIZE 512 /* sector size for VDDC */
43: #define VD_MAXSECSIZE 1024 /* max sector size for SMD/E */
44:
45: /*
46: * Controller communications block.
47: */
48: struct vddevice {
49: u_long vdcdr; /* controller device register */
50: u_long vdreset; /* controller reset register */
51: u_long vdcsr; /* control-status register */
52: long vdrstclr; /* reset clear register */
53: u_short vdstatus[16]; /* per-drive status register */
54: u_short vdicf_status; /* status change interupt control format */
55: u_short vdicf_done; /* interrupt complete control format */
56: u_short vdicf_error; /* interrupt error control format */
57: u_short vdicf_success; /* interrupt success control format */
58: u_short vdtcf_mdcb; /* mdcb transfer control format */
59: u_short vdtcf_dcb; /* dcb transfer control format */
60: u_short vdtcf_trail; /* trail transfer control format */
61: u_short vdtcf_data; /* data transfer control format */
62: u_long vdccf; /* controller configuration flags */
63: u_long vdsecsize; /* sector size */
64: u_short vdfill0;
65: u_char vdcylskew; /* cylinder to cylinder skew factor */
66: u_char vdtrackskew; /* track to track skew factor */
67: u_long vdfill1;
68: u_long vddfr; /* diagnostic flag register */
69: u_long vddda; /* diagnostic dump address */
70: };
71:
72: /* controller types */
73: #define VDTYPE_VDDC 1 /* old vddc controller (smd only) */
74: #define VDTYPE_SMDE 2 /* new smde controller (smd-e) */
75:
76: /*
77: * Controller status definitions.
78: */
79: #define CS_SCS 0xf /* status change source (drive number) */
80: #define CS_ELC 0x10 /* error on last command */
81: #define CS_ICC 0x60 /* interupt cause code */
82: #define ICC_NOI 0x00 /* no interupt */
83: #define ICC_DUN 0x20 /* no interupt */
84: #define ICC_ERR 0x40 /* no interupt */
85: #define ICC_SUC 0x60 /* no interupt */
86: #define CS_GO 0x80 /* go bit (controller busy) */
87: #define CS_BE 0x100 /* buss error */
88: #define CS_BOK 0x4000 /* board ok */
89: #define CS_SFL 0x8000 /* system fail */
90: #define CS_LEC 0xff000000 /* last error code */
91:
92: /*
93: * Drive status definitions.
94: */
95: #define STA_UR 0x1 /* unit ready */
96: #define STA_OC 0x2 /* on cylinder */
97: #define STA_SE 0x4 /* seek error */
98: #define STA_DF 0x8 /* drive fault */
99: #define STA_WP 0x10 /* write protected */
100: #define STA_US 0x20 /* unit selected */
101: #define STA_TYPE 0x300 /* drive type: */
102: #define STA_SMD 0x000 /* SMD */
103: #define STA_ESDI 0x100 /* ESDI */
104:
105: /*
106: * Interupt Control Field definitions.
107: */
108: #define ICF_IPL 0x7 /* interupt priority level */
109: #define ICF_IEN 0x8 /* interupt enable */
110: #define ICF_IV 0xff00 /* interupt vector */
111:
112: /*
113: * Transfer Control Format definitions.
114: */
115: #define TCF_AM 0xff /* Address Modifier */
116: #define AM_SNPDA 0x01 /* Standard Non-Privileged Data Access */
117: #define AM_SASA 0x81 /* Standard Ascending Sequential Access */
118: #define AM_ENPDA 0xf1 /* Extended Non-Privileged Data Access */
119: #define AM_EASA 0xe1 /* Extended Ascending Sequential Access */
120: #define TCF_BTE 0x800 /* Block Transfer Enable */
121:
122: /*
123: * Controller Configuration Flags.
124: */
125: #define CCF_STS 0x1 /* sectors per track selectable */
126: #define CCF_EAV 0x2 /* enable auto vector */
127: #define CCF_ERR 0x4 /* enable reset register */
128: #define CCF_RFE 0x8 /* recovery flag enable */
129: #define CCF_XMD 0x60 /* xmd transfer mode (bus size) */
130: #define XMD_8BIT 0x20 /* do only 8 bit transfers */
131: #define XMD_16BIT 0x40 /* do only 16 bit transfers */
132: #define XMD_32BIT 0x60 /* do only 32 bit transfers */
133: #define CCF_DIU 0x80 /* disable initial update of DCB @cmd start */
134: #define CCF_BSZ 0x300 /* burst size */
135: #define BSZ_16WRD 0x000 /* 16 word transfer burst */
136: #define BSZ_12WRD 0x100 /* 12 word transfer burst */
137: #define BSZ_8WRD 0x200 /* 8 word transfer burst */
138: #define BSZ_4WRD 0x300 /* 4 word transfer burst */
139: #define CCF_SEN 0x400 /* cylinder/track skew enable (for format) */
140: #define CCF_ENP 0x1000 /* enable parity */
141: #define CCF_EPE 0x2000 /* enable parity errors */
142: #define CCF_EDE 0x10000 /* error detection enable */
143: #define CCF_ECE 0x20000 /* error correction enable */
144:
145: /*
146: * Diagnostic register definitions.
147: */
148: #define DIA_DC 0x7f /* dump count mask */
149: #define DIA_DWR 0x80 /* dump write/read flag */
150: #define DIA_ARE 0x100 /* auto rebuild enable */
151: #define DIA_CEN 0x200 /* call enable flag */
152: #define DIA_KEY 0xAA550000 /* reset enable key */
153:
154: /*
155: * Hardware interface flags, in dcb.devselect and d_devflags
156: */
157: #define VD_ESDI 0x10 /* drive is on ESDI interface */
158: #define d_devflags d_drivedata[0] /* in disk label */
159:
160: /*
161: * Error recovery flags.
162: */
163: #define VDRF_RTZ 0x0001 /* return to zero */
164: #define VDRF_OCF 0x0002 /* on cylinder false */
165: #define VDRF_OSP 0x0004 /* offset plus */
166: #define VDRF_OSM 0x0008 /* offset minus */
167: #define VDRF_DSE 0x0080 /* data strobe early */
168: #define VDRF_DSL 0x0100 /* data strobe late */
169:
170: #define VDRF_NONE 0
171: #define VDRF_NORMAL (VDRF_RTZ|VDRF_OCF|VDRF_OSP|VDRF_OSM|VDRF_DSE|VDRF_DSL)
172:
173: /*
174: * Perform a reset on the controller.
175: */
176: #define VDRESET(a,t) { \
177: if ((t) == VDTYPE_SMDE) { \
178: ((struct vddevice *)(a))->vddfr = DIA_KEY|DIA_CEN; \
179: ((struct vddevice *)(a))->vdcdr = (u_long)0xffffffff; \
180: DELAY(5000000); \
181: } else { \
182: ((struct vddevice *)(a))->vdreset = 0; \
183: DELAY(1500000); \
184: } \
185: }
186:
187: /*
188: * Abort a controller operation.
189: */
190: #define VDABORT(a,t) { \
191: if ((t) == VDTYPE_VDDC) { \
192: movow((a), (VDOP_ABORT&0xffff0000)>>16) ; \
193: movow((int)(a)+2, VDOP_ABORT&0xffff); \
194: } else \
195: ((struct vddevice *)(a))->vdcdr = (u_long)VDOP_ABORT; \
196: DELAY(1000000); \
197: }
198:
199: /*
200: * Start a command.
201: */
202: #define VDGO(a,mdcb,t) {\
203: if ((t) == VDTYPE_VDDC) { \
204: movow((a), ((int)(mdcb)&0xffff0000)>>16) ; \
205: movow((int)((a))+2, (int)(mdcb)&0xffff); \
206: } else \
207: ((struct vddevice *)(a))->vdcdr = (mdcb); \
208: }
209:
210: /*
211: * MDCB layout.
212: */
213: struct mdcb {
214: struct dcb *mdcb_head; /* first dcb in list */
215: struct dcb *mdcb_busy; /* dcb being processed */
216: struct dcb *mdcb_intr; /* dcb causing interrupt */
217: long mdcb_status; /* status of dcb in mdcb_busy */
218: };
219:
220: /*
221: * DCB definitions.
222: */
223:
224: /*
225: * A disk address.
226: */
227: typedef struct {
228: u_char track; /* all 8 bits */
229: u_char sector; /* all 8 bits */
230: u_short cylinder; /* low order 12 bits */
231: } dskadr;
232:
233: /*
234: * DCB trailer formats.
235: */
236: /* read/write trailer */
237: struct trrw {
238: u_long memadr; /* memory address */
239: u_long wcount; /* 16 bit word count */
240: dskadr disk; /* disk address */
241: };
242:
243: /* scatter/gather trailer */
244: #define VDMAXPAGES (MAXPHYS / NBPG)
245: struct trsg {
246: struct trrw start_addr;
247: struct addr_chain {
248: u_long nxt_addr;
249: u_long nxt_len;
250: } addr_chain[VDMAXPAGES + 1];
251: };
252:
253: /* seek trailer format */
254: struct trseek {
255: dskadr skaddr;
256: };
257:
258: /* format trailer */
259: struct trfmt {
260: char *addr; /* data buffer to be filled on sector*/
261: long nsectors; /* # of sectors to be formatted */
262: dskadr disk; /* disk physical address info */
263: dskadr hdr; /* header address info */
264: };
265:
266: /* reset/configure trailer */
267: struct treset {
268: long ncyl; /* # cylinders */
269: long nsurfaces; /* # surfaces */
270: long nsectors; /* # sectors */
271: long slip_sec; /* # of slip sectors */
272: long recovery; /* recovery flags */
273: };
274:
275: /* ident trailer */
276: struct trid {
277: long name;
278: long rev;
279: long date;
280: };
281:
282: /*
283: * DCB layout.
284: */
285: struct dcb {
286: struct dcb *nxtdcb; /* next dcb */
287: short intflg; /* interrupt settings and flags */
288: short opcode; /* DCB command code etc... */
289: long operrsta; /* error & status info */
290: short fill; /* not used */
291: char devselect; /* drive selection */
292: char trailcnt; /* trailer Word Count */
293: long err_memadr; /* error memory address */
294: u_char err_code; /* error codes for SMD/E */
295: char fill2; /* not used */
296: short err_wcount; /* error word count */
297: char err_trk; /* error track/sector */
298: char err_sec; /* error track/sector */
299: short err_cyl; /* error cylinder adr */
300: union {
301: struct trid idtrail; /* ident command trailer */
302: struct trseek sktrail; /* seek command trailer */
303: struct trsg sgtrail; /* scatter/gather trailer */
304: struct trrw rwtrail; /* read/write trailer */
305: struct trfmt fmtrail; /* format trailer */
306: struct treset rstrail; /* reset/configure trailer */
307: } trail;
308: };
309:
310: /*
311: * smaller DCB with seek trailer only (no scatter-gather).
312: */
313: struct skdcb {
314: struct dcb *nxtdcb; /* next dcb */
315: short intflg; /* interrupt settings and flags */
316: short opcode; /* DCB command code etc... */
317: long operrsta; /* error & status info */
318: short fill; /* not used */
319: char devselect; /* drive selection */
320: char trailcnt; /* trailer Word Count */
321: long err_memadr; /* error memory address */
322: u_char err_code; /* error codes for SMD/E */
323: char fill2; /* not used */
324: short err_wcount; /* error word count */
325: char err_trk; /* error track/sector */
326: char err_sec; /* error track/sector */
327: short err_cyl; /* error cylinder adr */
328: union {
329: struct trseek sktrail; /* seek command trailer */
330: } trail;
331: };
332:
333: /*
334: * DCB command codes.
335: */
336: #define VDOP_RD 0x80 /* read data */
337: #define VDOP_FTR 0xc0 /* full track read */
338: #define VDOP_RAS 0x90 /* read and scatter */
339: #define VDOP_RDRAW 0x600 /* read unformatted disk sector */
340: #define VDOP_CMP 0xa0 /* compare */
341: #define VDOP_FTC 0xe0 /* full track compare */
342: #define VDOP_RHDE 0x180 /* read header, data & ecc */
343: #define VDOP_WD 0x00 /* write data */
344: #define VDOP_FTW 0x40 /* full track write */
345: #define VDOP_WTC 0x20 /* write then compare */
346: #define VDOP_FTWTC 0x60 /* full track write then compare */
347: #define VDOP_GAW 0x10 /* gather and write */
348: #define VDOP_WDE 0x100 /* write data & ecc */
349: #define VDOP_FSECT 0x900 /* format sector */
350: #define VDOP_GWC 0x30 /* gather write & compare */
351: #define VDOP_START 0x800 /* start drives */
352: #define VDOP_RELEASE 0xa00 /* stop drives */
353: #define VDOP_SEEK 0xb00 /* seek */
354: #define VDOP_INIT 0xc00 /* initialize controller */
355: #define VDOP_DIAG 0xd00 /* diagnose (self-test) controller */
356: #define VDOP_CONFIG 0xe00 /* reset & configure drive */
357: #define VDOP_STATUS 0xf00 /* get drive status */
358: #define VDOP_IDENT 0x700 /* identify controller */
359: #define VDOP_PROBE 0x500 /* probe drives and update status */
360:
361: #define VDOP_ABORT 0x80000000 /* abort current command */
362:
363: /*
364: * DCB status definitions.
365: */
366: #define DCBS_HCRC 0x00000001 /* header crc error */
367: #define DCBS_HCE 0x00000002 /* header compare error */
368: #define DCBS_WPT 0x00000004 /* drive write protected */
369: #define DCBS_CHE 0x00000008 /* controller hardware error */
370: #define DCBS_SKI 0x00000010 /* seek incomplete */
371: #define DCBS_UDE 0x00000020 /* uncorrectable data error */
372: #define DCBS_OCYL 0x00000040 /* off cylinder */
373: #define DCBS_NRDY 0x00000080 /* drive not ready */
374: #define DCBS_ATA 0x00000100 /* alternate track accessed */
375: #define DCBS_SKS 0x00000200 /* seek started */
376: #define DCBS_IVA 0x00000400 /* invalid disk address error */
377: #define DCBS_NEM 0x00000800 /* non-existant memory error */
378: #define DCBS_DPE 0x00001000 /* memory data parity error */
379: #define DCBS_DCE 0x00002000 /* data compare error */
380: #define DCBS_DDI 0x00004000 /* ddi ready */
381: #define DCBS_OAB 0x00008000 /* operation aborted */
382: #define DCBS_DSE 0x00010000 /* data strobe early */
383: #define DCBS_DSL 0x00020000 /* data strobe late */
384: #define DCBS_TOP 0x00040000 /* track offset plus */
385: #define DCBS_TOM 0x00080000 /* track offset minus */
386: #define DCBS_CCD 0x00100000 /* controller corrected data */
387: #define DCBS_HARD 0x00200000 /* hard error */
388: #define DCBS_SOFT 0x00400000 /* soft error (retry succesful) */
389: #define DCBS_ERR 0x00800000 /* composite error */
390: #define DCBS_IVC 0x01000000 /* invalid command error */
391: /* bits 24-27 unused */
392: #define DCBS_BSY 0x10000000 /* controller busy */
393: #define DCBS_ICC 0x60000000 /* interrupt cause code */
394: #define DCBS_INT 0x80000000 /* interrupt generated for this dcb */
395:
396: #define VDERRBITS "\20\1HCRC\2HCE\3WPT\4CHE\5DSKI\6UDE\7OCYL\10NRDY\
397: \11ATA\12SKS\13IVA\14NEM\15DPE\16DCE\17DDI\20OAB\21DSE\22DSL\23TOP\24TOM\
398: \25CCD\26HARD\27SOFT\30ERR\31IVC\35ABORTED\36FAIL\37COMPLETE\40STARTED"
399:
400: /* drive related errors */
401: #define VDERR_DRIVE (DCBS_SKI|DCBS_OCYL|DCBS_NRDY|DCBS_IVA)
402: /* controller related errors */
403: #define VDERR_CTLR (DCBS_CHE|DCBS_OAB|DCBS_IVC|DCBS_NEM)
404: /* potentially recoverable errors */
405: #define VDERR_RETRY \
406: (VDERR_DRIVE|VDERR_CTLR|DCBS_DCE|DCBS_DPE|DCBS_HCRC|DCBS_HCE)
407: /* uncorrected data errors */
408: #define VDERR_HARD (VDERR_RETRY|DCBS_WPT|DCBS_UDE)
409:
410: /*
411: * DCB status codes.
412: */
413: #define DCBS_ABORT 0x10000000 /* dcb aborted */
414: #define DCBS_FAIL 0x20000000 /* dcb unsuccesfully completed */
415: #define DCBS_DONE 0x40000000 /* dcb complete */
416: #define DCBS_START 0x80000000 /* dcb started */
417:
418: /*
419: * DCB interrupt control.
420: */
421: #define DCBINT_NONE 0x0 /* don't interrupt */
422: #define DCBINT_ERR 0x2 /* interrupt on error */
423: #define DCBINT_SUC 0x1 /* interrupt on success */
424: #define DCBINT_DONE (DCBINT_ERR|DCBINT_SUC)
425: #define DCBINT_PBA 0x4 /* proceed before acknowledge */
426:
427: /*
428: * Sector formats.
429: */
430: typedef union {
431: struct {
432: dskadr hdr_addr;
433: short smd_crc;
434: } smd;
435: struct {
436: dskadr physical;
437: dskadr logical;
438: long smd_e_crc;
439: } smd_e;
440: } fmt_hdr;
441:
442: /* Sector Header bit assignments */
443: #define VDMF 0x8000 /* Manufacturer Fault 1=good sector */
444: #define VDUF 0x4000 /* User Fault 1=good sector */
445: #define VDALT 0x2000 /* Alternate Sector 1=alternate */
446: #define VDWPT 0x1000 /* Write Protect 1=Read Only Sector */
447:
448: /* input register assignments for DIOCWFORMAT ioctl */
449: #define dk_op df_reg[0] /* opcode */
450: #define dk_althdr df_reg[1] /* alt. sect. dskadr, in an int! */
451: #define dk_fmtflags df_reg[2] /* header format flags */
452:
453: /* output register assignments for DIOCWFORMAT ioctl */
454: #define dk_operrsta df_reg[0] /* dcb operrsta */
455: #define dk_ecodecnt df_reg[1] /* smd-e ecode and error word count */
456: #define dk_ecode(ecodecnt) ((u_long)(ecodecnt) >> 2)
457: #define dk_errcnt(ecodecnt) (((ecodecnt) & 0xffff) << 1)
458: #define dk_erraddr df_reg[2] /* error dskadr, in an int! */
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