Commit | Line | Data |
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f6322301 | 1 | /* @(#)tmscp.c 7.5 (Berkeley) %G% */ |
e21477ad | 2 | |
88ac9a6a MK |
3 | #ifndef lint |
4 | static char *sccsid = "@(#)tmscp.c 1.24 (ULTRIX) 1/21/86"; | |
5 | #endif lint | |
e21477ad | 6 | |
88ac9a6a MK |
7 | |
8 | /************************************************************************ | |
9 | * * | |
66cf8c22 KD |
10 | * Licensed from Digital Equipment Corporation * |
11 | * Copyright (c) * | |
12 | * Digital Equipment Corporation * | |
13 | * Maynard, Massachusetts * | |
14 | * 1985, 1986 * | |
15 | * All rights reserved. * | |
88ac9a6a | 16 | * * |
66cf8c22 KD |
17 | * The Information in this software is subject to change * |
18 | * without notice and should not be construed as a commitment * | |
19 | * by Digital Equipment Corporation. Digital makes no * | |
20 | * representations about the suitability of this software for * | |
21 | * any purpose. It is supplied "As Is" without expressed or * | |
22 | * implied warranty. * | |
88ac9a6a | 23 | * * |
66cf8c22 KD |
24 | * If the Regents of the University of California or its * |
25 | * licensees modify the software in a manner creating * | |
26 | * diriviative copyright rights, appropriate copyright * | |
27 | * legends may be placed on the drivative work in addition * | |
28 | * to that set forth above. * | |
88ac9a6a MK |
29 | * * |
30 | ************************************************************************ | |
31 | * | |
32 | * tmscp.c - TMSCP (TK50/TU81) tape device driver | |
33 | * | |
34 | * Modification History: | |
35 | * | |
36 | * 06-Jan-86 - afd | |
37 | * Changed the probe routine to use DELAY (not TODR). This now | |
38 | * works for MicroVAXen as well. This eliminates the busy-wait | |
39 | * for MicroVAXen so a dead TK50 controller will not hang autoconf. | |
40 | * | |
41 | * 06-Dec-85 - afd | |
42 | * Fixed a bug in density selection. The "set unit characteristics" | |
43 | * command to select density, was clearing the "unit flags" field | |
44 | * where the CACHE bit was for TU81-E. Now the unit's "format" and | |
45 | * "unitflgs" are saved in tms_info struct. And are used on STUNT | |
46 | * commands. | |
47 | * | |
48 | * 19-Oct-85 - afd | |
49 | * Added support to the open routine to allow drives to be opened | |
50 | * for low density (800 or 1600 bpi) use. When the slave routine | |
51 | * initiates a "get-unit-char" cmd, the format menu for the unit | |
52 | * is saved in the tms_info structure. The format menu is used in the | |
53 | * start routine to select the proper low density. | |
54 | * | |
55 | * 02-Oct-85 - afd | |
56 | * When a tmscp-type controller is initializing, it is possible for | |
57 | * the sa reg to become 0 between states. Thus the init code in | |
58 | * the interrupt routine had to be modified to reflect this. | |
59 | * | |
60 | * 21-Sep-85 - afd | |
61 | * The TK50 declares a serious exception when a tape mark is encountered. | |
62 | * This causes problems to dd (& other UN*X utilities). So a flag | |
63 | * is set in the rsp() routine when a tape mark is encountered. If | |
64 | * this flag is set, the start() routine appends the Clear Serious | |
65 | * Exception modifier to the next command. | |
66 | * | |
67 | * 03-Sep-85 -- jaw | |
68 | * messed up previous edit.. | |
69 | * | |
70 | * 29-Aug-85 - jaw | |
71 | * fixed bugs in 8200 and 750 buffered datapath handling. | |
72 | * | |
73 | * 06-Aug-85 - afd | |
74 | * 1. When repositioning records or files, the count of items skipped | |
75 | * does NOT HAVE to be returned by controllers (& the TU81 doesn't). | |
76 | * So tmscprsp() had to be modified to stop reporting | |
77 | * residual count errors on reposition commands. | |
78 | * | |
79 | * 2. Fixed bug in the open routine which allowed multiple opens. | |
80 | * | |
81 | * 18-Jul-85 - afd | |
82 | * 1. Need to return status when mt status (or corresponding ioctl) is done. | |
83 | * Save resid, flags, endcode & status in tmscprsp() routine (except on | |
84 | * clear serious exception no-op). Return these fields when status | |
85 | * ioctl is done (in tmscpcommand()). How they are returned: | |
86 | * mt_resid = resid | |
87 | * mt_dsreg = flags|endcode | |
88 | * mt_erreg = status | |
89 | * | |
90 | * 2. Added latent support for enabling/disabling caching. This is | |
91 | * handled along with all other ioctl commands. | |
92 | * | |
93 | * 3. Need to issue a no-op on unrecognized ioctl in tmscpstart(), since | |
94 | * we have already commited to issuing a command at that point. | |
95 | * | |
96 | * 4. In tmscprsp() routine if encode is 0200 (invalid command issued); | |
97 | * We need to: Unlink the buffer from the I/O wait queue, | |
98 | * and signal iodone, so the higher level command can exit! | |
99 | * Just as if it were a valid command. | |
100 | * | |
101 | * 11-jul-85 -- jaw | |
102 | * fix bua/bda map registers. | |
103 | * | |
104 | * 19-Jun-85 -- jaw | |
105 | * VAX8200 name change. | |
106 | * | |
107 | * 06-Jun-85 - jaw | |
108 | * fixes for 8200. | |
109 | * | |
110 | * 9-Apr-85 - afd | |
111 | * Added timeout code to the probe routine, so if the controller | |
112 | * fails to init in 10 seconds we return failed status. | |
113 | * | |
114 | * 13-Mar-85 -jaw | |
115 | * Changes for support of the VAX8200 were merged in. | |
116 | * | |
117 | * 27-Feb-85 -tresvik | |
118 | * Changes for support of the VAX8600 were merged in. | |
119 | * | |
120 | */ | |
e21477ad | 121 | |
88ac9a6a | 122 | #include "tms.h" |
e21477ad MK |
123 | #if NTMSCP > 0 |
124 | ||
e21477ad MK |
125 | #include "param.h" |
126 | #include "systm.h" | |
127 | #include "buf.h" | |
128 | #include "conf.h" | |
129 | #include "dir.h" | |
130 | #include "user.h" | |
131 | #include "file.h" | |
132 | #include "map.h" | |
133 | #include "vm.h" | |
134 | #include "ioctl.h" | |
135 | #include "syslog.h" | |
136 | #include "mtio.h" | |
137 | #include "cmap.h" | |
138 | #include "uio.h" | |
0b35cf68 | 139 | #include "tty.h" |
e21477ad | 140 | |
c457503f | 141 | #include "../vax/pte.h" |
e21477ad MK |
142 | #include "../vax/cpu.h" |
143 | #include "../vax/mtpr.h" | |
144 | #include "ubareg.h" | |
145 | #include "ubavar.h" | |
146 | ||
147 | #define TENSEC (1000) | |
148 | #define TMS_PRI LOG_INFO | |
149 | ||
150 | #define NRSPL2 3 /* log2 number of response packets */ | |
151 | #define NCMDL2 3 /* log2 number of command packets */ | |
152 | #define NRSP (1<<NRSPL2) | |
153 | #define NCMD (1<<NCMDL2) | |
154 | ||
155 | #include "tmscpreg.h" | |
156 | #include "../vax/tmscp.h" | |
157 | ||
158 | /* Software state per controller */ | |
159 | ||
160 | struct tmscp_softc { | |
161 | short sc_state; /* state of controller */ | |
162 | short sc_mapped; /* Unibus map allocated for tmscp struct? */ | |
163 | int sc_ubainfo; /* Unibus mapping info */ | |
164 | struct tmscp *sc_tmscp; /* Unibus address of tmscp struct */ | |
165 | int sc_ivec; /* interrupt vector address */ | |
166 | short sc_credits; /* transfer credits */ | |
167 | short sc_lastcmd; /* pointer into command ring */ | |
168 | short sc_lastrsp; /* pointer into response ring */ | |
169 | } tmscp_softc[NTMSCP]; | |
170 | ||
171 | struct tmscp { | |
172 | struct tmscpca tmscp_ca; /* communications area */ | |
173 | struct mscp tmscp_rsp[NRSP]; /* response packets */ | |
174 | struct mscp tmscp_cmd[NCMD]; /* command packets */ | |
175 | } tmscp[NTMSCP]; | |
176 | ||
177 | /* | |
178 | * Per drive-unit info | |
179 | */ | |
180 | struct tms_info { | |
181 | daddr_t tms_dsize; /* Max user size from online pkt */ | |
182 | unsigned tms_type; /* Drive type int field */ | |
183 | int tms_resid; /* residual from last xfer */ | |
184 | u_char tms_endcode; /* last command endcode */ | |
185 | u_char tms_flags; /* last command end flags */ | |
186 | unsigned tms_status; /* Command status from last command */ | |
187 | char tms_openf; /* lock against multiple opens */ | |
188 | char tms_lastiow; /* last op was a write */ | |
189 | char tms_serex; /* set when serious exception occurs */ | |
190 | char tms_clserex; /* set when serex being cleared by no-op */ | |
191 | short tms_fmtmenu; /* the unit's format (density) menu */ | |
192 | short tms_unitflgs; /* unit flag parameters */ | |
193 | short tms_format; /* the unit's current format (density) */ | |
194 | struct tty *tms_ttyp; /* record user's tty for errors */ | |
195 | } tms_info[NTMS]; | |
196 | struct uba_ctlr *tmscpminfo[NTMSCP]; | |
197 | struct uba_device *tmsdinfo[NTMS]; | |
198 | /* | |
199 | * ifdef other tmscp devices here if they allow more than 1 unit/controller | |
200 | */ | |
201 | struct uba_device *tmscpip[NTMSCP][1]; | |
e21477ad MK |
202 | struct buf ctmscpbuf[NTMSCP]; /* internal cmd buffer (for ioctls) */ |
203 | struct buf tmsutab[NTMS]; /* Drive queue */ | |
204 | struct buf tmscpwtab[NTMSCP]; /* I/O wait queue, per controller */ | |
205 | int tmscpmicro[NTMSCP]; /* to store microcode level */ | |
206 | short utoctlr[NTMS]; /* Slave unit to controller mapping */ | |
207 | /* filled in by the slave routine */ | |
208 | ||
88ac9a6a MK |
209 | /* Bits in minor device */ |
210 | #define TMSUNIT(dev) (minor(dev)&03) | |
211 | #define T_NOREWIND 04 | |
212 | #define T_HIDENSITY 010 | |
e21477ad | 213 | |
88ac9a6a MK |
214 | /* Slave unit to controller mapping */ |
215 | #define TMSCPCTLR(dev) (utoctlr[TMSUNIT(dev)]) | |
e21477ad | 216 | |
88ac9a6a MK |
217 | /* |
218 | * Internal (ioctl) command codes (these must also be declared in the | |
219 | * tmscpioctl routine). These correspond to ioctls in mtio.h | |
220 | */ | |
221 | #define TMS_WRITM 0 /* write tape mark */ | |
222 | #define TMS_FSF 1 /* forward space file */ | |
223 | #define TMS_BSF 2 /* backward space file */ | |
224 | #define TMS_FSR 3 /* forward space record */ | |
225 | #define TMS_BSR 4 /* backward space record */ | |
226 | #define TMS_REW 5 /* rewind tape */ | |
227 | #define TMS_OFFL 6 /* rewind tape & mark unit offline */ | |
228 | #define TMS_SENSE 7 /* noop - do a get unit status */ | |
229 | #define TMS_CACHE 8 /* enable cache */ | |
230 | #define TMS_NOCACHE 9 /* disable cache */ | |
231 | /* These go last: after all real mt cmds, just bump the numbers up */ | |
232 | #define TMS_CSE 10 /* clear serious exception */ | |
233 | #define TMS_LOWDENSITY 11 /* set unit to low density */ | |
234 | #define TMS_HIDENSITY 12 /* set unit to high density */ | |
e21477ad | 235 | |
88ac9a6a MK |
236 | /* |
237 | * Controller states | |
238 | */ | |
239 | #define S_IDLE 0 /* hasn't been initialized */ | |
240 | #define S_STEP1 1 /* doing step 1 init */ | |
241 | #define S_STEP2 2 /* doing step 2 init */ | |
242 | #define S_STEP3 3 /* doing step 3 init */ | |
243 | #define S_SCHAR 4 /* doing "set controller characteristics" */ | |
244 | #define S_RUN 5 /* running */ | |
e21477ad | 245 | |
88ac9a6a MK |
246 | int tmscperror = 0; /* causes hex dump of packets */ |
247 | int tmscp_cp_wait = 0; /* Something to wait on for command */ | |
248 | /* packets and or credits. */ | |
249 | int wakeup(); | |
250 | extern int hz; /* Should find the right include */ | |
e21477ad | 251 | |
88ac9a6a MK |
252 | #ifdef DEBUG |
253 | #define printd if (tmscpdebug) printf | |
254 | int tmscpdebug = 1; | |
255 | #define printd10 if(tmscpdebug >= 10) printf | |
256 | #endif | |
e21477ad | 257 | |
88ac9a6a MK |
258 | int tmscpprobe(), tmscpslave(), tmscpattach(), tmscpintr(); |
259 | struct mscp *tmscpgetcp(); | |
e21477ad | 260 | |
88ac9a6a MK |
261 | #define DRVNAME "tms" |
262 | #define CTRLNAME "tmscp" | |
e21477ad | 263 | |
88ac9a6a MK |
264 | u_short tmscpstd[] = { 0174500, 0 }; |
265 | struct uba_driver tmscpdriver = | |
266 | { tmscpprobe, tmscpslave, tmscpattach, 0, tmscpstd, DRVNAME, tmsdinfo, CTRLNAME | |
267 | , tmscpminfo, 0}; | |
e21477ad | 268 | |
88ac9a6a MK |
269 | #define b_qsize b_resid /* queue size per drive, in tmsutab */ |
270 | #define b_ubinfo b_resid /* Unibus mapping info, per buffer */ | |
e21477ad MK |
271 | |
272 | ||
88ac9a6a | 273 | /*************************************************************************/ |
e21477ad | 274 | |
88ac9a6a | 275 | #define DELAYTEN 1000 |
e21477ad | 276 | |
88ac9a6a MK |
277 | tmscpprobe(reg, ctlr) |
278 | caddr_t reg; /* address of the IP register */ | |
e21477ad | 279 | int ctlr; /* index of controller in the tmscp_softc array */ |
88ac9a6a MK |
280 | { |
281 | register int br, cvec; /* MUST be 1st (r11 & r10): IPL and intr vec */ | |
282 | register struct tmscp_softc *sc = &tmscp_softc[ctlr]; | |
283 | /* ptr to software controller structure */ | |
e21477ad | 284 | struct tmscpdevice *tmscpaddr; /* ptr to tmscpdevice struct (IP & SA) */ |
88ac9a6a | 285 | int count; /* for probe delay time out */ |
e21477ad | 286 | |
88ac9a6a MK |
287 | # ifdef lint |
288 | br = 0; cvec = br; br = cvec; reg = reg; | |
289 | tmscpreset(0); tmscpintr(0); | |
290 | # endif | |
e21477ad | 291 | |
88ac9a6a MK |
292 | tmscpaddr = (struct tmscpdevice *) reg; |
293 | /* | |
294 | * Set host-settable interrupt vector. | |
e21477ad | 295 | * Assign 0 to the ip register to start the tmscp-device initialization. |
88ac9a6a MK |
296 | * The device is not really initialized at this point, this is just to |
297 | * find out if the device exists. | |
298 | */ | |
299 | sc->sc_ivec = (uba_hd[numuba].uh_lastiv -= 4); | |
300 | tmscpaddr->tmscpip = 0; | |
e21477ad | 301 | |
88ac9a6a MK |
302 | count=0; |
303 | while(count < DELAYTEN) | |
304 | { /* wait for at most 10 secs */ | |
305 | if((tmscpaddr->tmscpsa & TMSCP_STEP1) != 0) | |
306 | break; | |
307 | DELAY(10000); | |
308 | count=count+1; | |
309 | } | |
310 | if (count == DELAYTEN) | |
311 | return(0); | |
e21477ad MK |
312 | |
313 | tmscpaddr->tmscpsa = TMSCP_ERR|(NCMDL2<<11)|(NRSPL2<<8)|TMSCP_IE|(sc->sc_ivec/4); | |
314 | ||
88ac9a6a MK |
315 | count=0; |
316 | while(count < DELAYTEN) | |
317 | { | |
e21477ad | 318 | if((tmscpaddr->tmscpsa & TMSCP_STEP2) != 0) |
88ac9a6a MK |
319 | break; |
320 | DELAY(10000); | |
321 | count = count+1; | |
322 | } | |
323 | if (count == DELAYTEN) | |
324 | return(0); | |
e21477ad | 325 | |
f6322301 TF |
326 | #ifdef QBA |
327 | if (cpu == VAX_630 || cpu == VAX_650) | |
440841aa MK |
328 | br = 0x15; /* screwy interrupt structure */ |
329 | #endif | |
88ac9a6a MK |
330 | return(sizeof (struct tmscpdevice)); |
331 | } | |
e21477ad | 332 | |
88ac9a6a MK |
333 | /* |
334 | * Try to find a slave (a drive) on the controller. | |
335 | * If the controller is not in the run state, call init to initialize it. | |
336 | */ | |
337 | tmscpslave (ui, reg) | |
338 | struct uba_device *ui; /* ptr to the uba device structure */ | |
339 | caddr_t reg; /* addr of the device controller */ | |
340 | { | |
341 | register struct uba_ctlr *um = tmscpminfo[ui->ui_ctlr]; | |
342 | register struct tmscp_softc *sc = &tmscp_softc[ui->ui_ctlr]; | |
e21477ad | 343 | register struct tms_info *tms = &tms_info[ui->ui_unit]; |
88ac9a6a MK |
344 | struct tmscpdevice *tmscpaddr; /* ptr to IP & SA */ |
345 | struct mscp *mp; | |
346 | int i; /* Something to write into to start */ | |
347 | /* the tmscp polling */ | |
e21477ad | 348 | |
88ac9a6a | 349 | # ifdef lint |
9418508d | 350 | reg = reg; |
88ac9a6a MK |
351 | # endif |
352 | tmscpaddr = (struct tmscpdevice *)um->um_addr; | |
353 | /* | |
354 | * If its not in the run state, start the initialization process | |
355 | * (tmscpintr will complete it); if the initialization doesn't start; | |
356 | * then return. | |
357 | */ | |
358 | if(sc->sc_state != S_RUN) | |
359 | { | |
360 | # ifdef DEBUG | |
361 | printd("tmscpslave: ctlr not running: calling init \n"); | |
362 | # endif | |
363 | if(!tmscpinit(ui->ui_ctlr)) | |
364 | return(0); | |
365 | } | |
366 | /* | |
367 | * Wait for the controller to come into the run state or go idle. | |
368 | * If it goes idle return. | |
369 | */ | |
370 | # ifdef DEBUG | |
371 | i=1; | |
372 | # endif | |
373 | while(sc->sc_state != S_RUN && sc->sc_state != S_IDLE) | |
374 | # ifdef DEBUG | |
375 | if (tmscpaddr->tmscpsa & TMSCP_ERR && i) | |
376 | { | |
e21477ad | 377 | printd("tmscp-device: fatal error (%o)\n", tmscpaddr->tmscpsa&0xffff); |
88ac9a6a MK |
378 | i=0; |
379 | } | |
380 | # endif | |
381 | ; /* wait */ | |
382 | if(sc->sc_state == S_IDLE) | |
383 | { /* The tmscp device failed to initialize */ | |
384 | printf("tmscp controller failed to init\n"); | |
385 | return(0); | |
386 | } | |
387 | /* The controller is up so see if the drive is there */ | |
388 | if(0 == (mp = tmscpgetcp(um))) | |
389 | { | |
390 | printf("tmscp can't get command packet\n"); | |
391 | return(0); | |
392 | } | |
393 | /* Need to determine the drive type for generic driver */ | |
e21477ad | 394 | mp->mscp_opcode = M_OP_GTUNT; /* This should give us the device type */ |
88ac9a6a MK |
395 | mp->mscp_unit = ui->ui_slave; |
396 | mp->mscp_cmdref = (long) ui->ui_slave; | |
e21477ad | 397 | tms->tms_status = 0; /* set to zero */ |
88ac9a6a | 398 | tmscpip[ui->ui_ctlr][ui->ui_slave] = ui; |
e21477ad | 399 | *((long *) mp->mscp_dscptr ) |= TMSCP_OWN | TMSCP_INT;/* maybe we should poll*/ |
88ac9a6a | 400 | i = tmscpaddr->tmscpip; |
9418508d MK |
401 | #ifdef lint |
402 | i = i; | |
403 | #endif | |
e21477ad | 404 | while(!tms->tms_status) |
88ac9a6a MK |
405 | ; /* Wait for some status */ |
406 | # ifdef DEBUG | |
e21477ad MK |
407 | printd("tmscpslave: status = %o\n",tms->tms_status & M_ST_MASK); |
408 | # endif | |
88ac9a6a | 409 | tmscpip[ui->ui_ctlr][ui->ui_slave] = 0; |
e21477ad | 410 | if(!tms->tms_type) /* packet from a GTUNT */ |
88ac9a6a MK |
411 | return(0); /* Failed No such drive */ |
412 | else | |
413 | return(1); /* Got it and it is there */ | |
414 | } | |
e21477ad MK |
415 | |
416 | ||
88ac9a6a MK |
417 | /* |
418 | * Set ui flags to zero to show device is not online & set tmscpip. | |
419 | * Unit to Controller mapping is set up here. | |
420 | * Open routine will issue the online command, later. | |
421 | */ | |
422 | tmscpattach (ui) | |
423 | register struct uba_device *ui; /* ptr to unibus dev struct */ | |
424 | { | |
e21477ad | 425 | |
88ac9a6a MK |
426 | ui->ui_flags = 0; |
427 | tmscpip[ui->ui_ctlr][ui->ui_slave] = ui; | |
428 | # ifdef DEBUG | |
429 | /* | |
430 | * Check to see if the drive is available. | |
431 | * If not then just print debug. | |
432 | */ | |
433 | if(tms_info[ui->ui_unit].tms_status != M_ST_AVLBL) | |
434 | printd("tmscpattach: unavailable \n"); | |
435 | # endif | |
436 | utoctlr[ui->ui_unit] = ui->ui_ctlr; | |
437 | } | |
e21477ad MK |
438 | |
439 | ||
88ac9a6a MK |
440 | /* |
441 | * TMSCP interrupt routine. | |
442 | */ | |
443 | tmscpintr (d) | |
444 | int d; /* index to the controller */ | |
445 | { | |
446 | register struct uba_ctlr *um = tmscpminfo[d]; | |
e21477ad | 447 | register struct tmscpdevice *tmscpaddr = (struct tmscpdevice *)um->um_addr; |
88ac9a6a MK |
448 | struct buf *bp; |
449 | register int i; | |
450 | register struct tmscp_softc *sc = &tmscp_softc[d]; | |
451 | register struct tmscp *tm = &tmscp[d]; | |
452 | struct tmscp *ttm; | |
453 | struct mscp *mp; | |
e21477ad | 454 | |
88ac9a6a | 455 | # ifdef DEBUG |
e21477ad | 456 | printd10("tmscpintr: state %d, tmscpsa %o\n", sc->sc_state, tmscpaddr->tmscpsa); |
88ac9a6a | 457 | # endif |
e21477ad | 458 | |
88ac9a6a MK |
459 | /* |
460 | * How the interrupt is handled depends on the state of the controller. | |
461 | */ | |
462 | switch (sc->sc_state) { | |
e21477ad | 463 | |
88ac9a6a MK |
464 | case S_IDLE: |
465 | printf("tmscp%d: random interrupt ignored\n", d); | |
466 | return; | |
e21477ad | 467 | |
88ac9a6a MK |
468 | /* Controller was in step 1 last, see if its gone to step 2 */ |
469 | case S_STEP1: | |
470 | # define STEP1MASK 0174377 | |
471 | # define STEP1GOOD (TMSCP_STEP2|TMSCP_IE|(NCMDL2<<3)|NRSPL2) | |
472 | for (i = 0; i < 150; i++) | |
473 | { | |
474 | if ((tmscpaddr->tmscpsa&STEP1MASK) != STEP1GOOD) | |
475 | { /* still in step 1 (wait 1/100 sec) */ | |
476 | DELAY(10000); | |
477 | # ifdef DEBUG | |
478 | printd("still in step 1, delaying\n"); | |
479 | # endif DEBUG | |
480 | } | |
481 | else | |
482 | break; | |
483 | } | |
484 | if (i > 149) | |
485 | { | |
486 | sc->sc_state = S_IDLE; | |
e21477ad | 487 | printf("failed to initialize, in step1: sa 0x%x", tmscpaddr->tmscpsa); |
88ac9a6a MK |
488 | wakeup((caddr_t)um); |
489 | return; | |
490 | } | |
491 | tmscpaddr->tmscpsa = ((int)&sc->sc_tmscp->tmscp_ca.ca_ringbase) | |
492 | | ((cpu == VAX_780 || cpu == VAX_8600) ? TMSCP_PI : 0); | |
493 | sc->sc_state = S_STEP2; | |
494 | return; | |
e21477ad | 495 | |
88ac9a6a MK |
496 | /* Controller was in step 2 last, see if its gone to step 3 */ |
497 | case S_STEP2: | |
498 | # define STEP2MASK 0174377 | |
499 | # define STEP2GOOD (TMSCP_STEP3|TMSCP_IE|(sc->sc_ivec/4)) | |
500 | for (i = 0; i < 150; i++) | |
501 | { | |
502 | if ((tmscpaddr->tmscpsa&STEP2MASK) != STEP2GOOD) | |
503 | { /* still in step 2 (wait 1/100 sec) */ | |
504 | DELAY(10000); | |
505 | # ifdef DEBUG | |
506 | printd("still in step 2, delaying\n"); | |
507 | # endif DEBUG | |
508 | } | |
509 | else | |
510 | break; | |
511 | } | |
512 | if (i > 149) | |
513 | { | |
514 | sc->sc_state = S_IDLE; | |
e21477ad | 515 | printf("failed to initialize, in step2: sa 0x%x", tmscpaddr->tmscpsa); |
88ac9a6a MK |
516 | wakeup((caddr_t)um); |
517 | return; | |
518 | } | |
e21477ad | 519 | tmscpaddr->tmscpsa = ((int)&sc->sc_tmscp->tmscp_ca.ca_ringbase)>>16; |
88ac9a6a MK |
520 | sc->sc_state = S_STEP3; |
521 | return; | |
e21477ad | 522 | |
88ac9a6a MK |
523 | /* Controller was in step 3 last, see if its gone to step 4 */ |
524 | case S_STEP3: | |
525 | # define STEP3MASK 0174000 | |
526 | # define STEP3GOOD TMSCP_STEP4 | |
527 | for (i = 0; i < 150; i++) | |
528 | { | |
529 | if ((tmscpaddr->tmscpsa&STEP3MASK) != STEP3GOOD) | |
530 | { /* still in step 3 (wait 1/100 sec) */ | |
531 | DELAY(10000); | |
532 | # ifdef DEBUG | |
533 | printd("still in step 3, delaying\n"); | |
534 | # endif DEBUG | |
535 | } | |
536 | else | |
537 | break; | |
538 | } | |
539 | if (i > 149) | |
540 | { | |
541 | sc->sc_state = S_IDLE; | |
e21477ad | 542 | printf("failed to initialize, in step3: sa 0x%x", tmscpaddr->tmscpsa); |
88ac9a6a MK |
543 | wakeup((caddr_t)um); |
544 | return; | |
545 | } | |
546 | /* | |
547 | * Get microcode version and model number of controller; | |
548 | * Signal initialization complete (_GO) (to the controller); | |
549 | * ask for Last Fail response if tmscperror is set; | |
550 | * Set state to "set controller characteristics". | |
551 | */ | |
552 | tmscpmicro[d] = tmscpaddr->tmscpsa; | |
553 | tmscpaddr->tmscpsa = TMSCP_GO | (tmscperror? TMSCP_LF : 0); | |
554 | sc->sc_state = S_SCHAR; | |
555 | # ifdef DEBUG | |
556 | printd("tmscpintr: completed state %d \n", sc->sc_state); | |
557 | printd("tmscp%d Version %d model %d\n",d,tmscpmicro[d]&0xF, | |
558 | (tmscpmicro[d]>>4) & 0xF); | |
559 | # endif | |
e21477ad | 560 | |
88ac9a6a MK |
561 | /* |
562 | * Initialize the data structures (response and command queues). | |
563 | */ | |
564 | ttm = sc->sc_tmscp; | |
565 | for (i = 0; i < NRSP; i++) | |
566 | { | |
567 | tm->tmscp_ca.ca_rspdsc[i] = TMSCP_OWN | TMSCP_INT | | |
e21477ad | 568 | (long)&ttm->tmscp_rsp[i].mscp_cmdref; |
88ac9a6a MK |
569 | tm->tmscp_rsp[i].mscp_dscptr = &tm->tmscp_ca.ca_rspdsc[i]; |
570 | tm->tmscp_rsp[i].mscp_header.tmscp_msglen = mscp_msglen; | |
571 | } | |
572 | for (i = 0; i < NCMD; i++) | |
573 | { | |
574 | tm->tmscp_ca.ca_cmddsc[i] = TMSCP_INT | | |
575 | (long)&ttm->tmscp_cmd[i].mscp_cmdref; | |
576 | tm->tmscp_cmd[i].mscp_dscptr = &tm->tmscp_ca.ca_cmddsc[i]; | |
577 | tm->tmscp_cmd[i].mscp_header.tmscp_msglen = mscp_msglen; | |
578 | tm->tmscp_cmd[i].mscp_header.tmscp_vcid = 1; | |
579 | } | |
580 | bp = &tmscpwtab[d]; | |
581 | bp->av_forw = bp->av_back = bp; | |
582 | sc->sc_lastcmd = 1; | |
583 | sc->sc_lastrsp = 0; | |
584 | mp = &tmscp[um->um_ctlr].tmscp_cmd[0]; | |
585 | mp->mscp_unit = mp->mscp_modifier = 0; | |
586 | mp->mscp_flags = 0; | |
587 | mp->mscp_version = 0; | |
588 | mp->mscp_cntflgs = M_CF_ATTN|M_CF_MISC|M_CF_THIS; | |
589 | /* | |
590 | * A host time out value of 0 means that the controller will not | |
591 | * time out. This is ok for the TK50. | |
592 | */ | |
593 | mp->mscp_hsttmo = 0; | |
594 | mp->mscp_time.val[0] = 0; | |
595 | mp->mscp_time.val[1] = 0; | |
596 | mp->mscp_cntdep = 0; | |
597 | mp->mscp_opcode = M_OP_STCON; | |
598 | *((long *)mp->mscp_dscptr) |= TMSCP_OWN|TMSCP_INT; | |
599 | i = tmscpaddr->tmscpip; /* initiate polling */ | |
600 | return; | |
e21477ad | 601 | |
88ac9a6a MK |
602 | case S_SCHAR: |
603 | case S_RUN: | |
604 | break; | |
e21477ad | 605 | |
88ac9a6a | 606 | default: |
e21477ad | 607 | printf("tmscp%d: interrupt in unknown state %d ignored\n",d,sc->sc_state); |
88ac9a6a MK |
608 | return; |
609 | } /* end switch */ | |
e21477ad | 610 | |
88ac9a6a MK |
611 | /* |
612 | * The controller state is S_SCHAR or S_RUN | |
613 | */ | |
e21477ad | 614 | |
88ac9a6a MK |
615 | /* |
616 | * If the error bit is set in the SA register then print an error | |
617 | * message and reinitialize the controller. | |
618 | */ | |
619 | if (tmscpaddr->tmscpsa&TMSCP_ERR) | |
620 | { | |
e21477ad | 621 | printf("tmscp%d: fatal error (%o)\n", d, tmscpaddr->tmscpsa&0xffff); |
88ac9a6a MK |
622 | tmscpaddr->tmscpip = 0; |
623 | wakeup((caddr_t)um); | |
624 | } | |
625 | /* | |
626 | * Check for a buffer purge request. (Won't happen w/ TK50 on Q22 bus) | |
627 | */ | |
628 | if (tm->tmscp_ca.ca_bdp) | |
629 | { | |
8011f5df | 630 | UBAPURGE(um->um_hd->uh_uba, tm->tmscp_ca.ca_bdp); |
88ac9a6a MK |
631 | tm->tmscp_ca.ca_bdp = 0; |
632 | tmscpaddr->tmscpsa = 0; /* signal purge complete */ | |
633 | } | |
e21477ad | 634 | |
88ac9a6a MK |
635 | /* |
636 | * Check for response ring transition. | |
637 | */ | |
638 | if (tm->tmscp_ca.ca_rspint) | |
639 | { | |
640 | tm->tmscp_ca.ca_rspint = 0; | |
641 | for (i = sc->sc_lastrsp;; i++) | |
642 | { | |
643 | i %= NRSP; | |
644 | if (tm->tmscp_ca.ca_rspdsc[i]&TMSCP_OWN) | |
645 | break; | |
646 | tmscprsp(um, tm, sc, i); | |
647 | tm->tmscp_ca.ca_rspdsc[i] |= TMSCP_OWN; | |
648 | } | |
649 | sc->sc_lastrsp = i; | |
650 | } | |
e21477ad | 651 | |
88ac9a6a MK |
652 | /* |
653 | * Check for command ring transition. | |
654 | */ | |
655 | if (tm->tmscp_ca.ca_cmdint) | |
656 | { | |
657 | # ifdef DEBUG | |
658 | printd("tmscpintr: command ring transition\n"); | |
659 | # endif | |
660 | tm->tmscp_ca.ca_cmdint = 0; | |
661 | } | |
662 | if(tmscp_cp_wait) | |
8011f5df | 663 | wakeup((caddr_t)&tmscp_cp_wait); |
88ac9a6a MK |
664 | (void) tmscpstart(um); |
665 | } | |
e21477ad MK |
666 | |
667 | ||
88ac9a6a MK |
668 | /* |
669 | * Open a tmscp device and set the unit online. If the controller is not | |
670 | * in the run state, call init to initialize the tmscp controller first. | |
671 | */ | |
e21477ad | 672 | |
9418508d | 673 | /* ARGSUSED */ |
88ac9a6a MK |
674 | tmscpopen(dev, flag) |
675 | dev_t dev; | |
676 | int flag; | |
677 | { | |
678 | register int unit; | |
679 | register struct uba_device *ui; | |
680 | register struct tmscp_softc *sc; | |
e21477ad | 681 | register struct tms_info *tms; |
88ac9a6a MK |
682 | register struct mscp *mp; |
683 | register struct uba_ctlr *um; | |
684 | struct tmscpdevice *tmscpaddr; | |
685 | int s,i; | |
88ac9a6a | 686 | |
88ac9a6a MK |
687 | unit = TMSUNIT(dev); |
688 | # ifdef DEBUG | |
689 | printd("tmscpopen unit %d\n",unit); | |
690 | if(tmscpdebug)DELAY(10000); | |
691 | # endif | |
e21477ad | 692 | if (unit >= NTMS || (ui = tmsdinfo[unit]) == 0 || ui->ui_alive == 0) |
88ac9a6a | 693 | return (ENXIO); |
e21477ad MK |
694 | tms = &tms_info[ui->ui_unit]; |
695 | if (tms->tms_openf) | |
696 | return (EBUSY); | |
88ac9a6a | 697 | sc = &tmscp_softc[ui->ui_ctlr]; |
e21477ad MK |
698 | tms->tms_openf = 1; |
699 | tms->tms_ttyp = u.u_ttyp; | |
88ac9a6a MK |
700 | s = spl5(); |
701 | if (sc->sc_state != S_RUN) | |
702 | { | |
703 | if (sc->sc_state == S_IDLE) | |
704 | if(!tmscpinit(ui->ui_ctlr)) | |
705 | { | |
706 | printf("tmscp controller failed to init\n"); | |
707 | (void) splx(s); | |
c457503f | 708 | tms->tms_openf = 0; |
88ac9a6a MK |
709 | return(ENXIO); |
710 | } | |
711 | /* | |
712 | * Wait for initialization to complete | |
713 | */ | |
714 | timeout(wakeup,(caddr_t)ui->ui_mi,11*hz); /* to be sure*/ | |
715 | sleep((caddr_t)ui->ui_mi, 0); | |
716 | if (sc->sc_state != S_RUN) | |
717 | { | |
718 | (void) splx(s); | |
e21477ad | 719 | tms->tms_openf = 0; |
88ac9a6a MK |
720 | return (EIO); |
721 | } | |
722 | } | |
723 | /* | |
724 | * Check to see if the device is really there. | |
725 | * this code was taken from Fred Canters 11 driver | |
726 | */ | |
727 | um = ui->ui_mi; | |
728 | tmscpaddr = (struct tmscpdevice *) um->um_addr; | |
729 | (void) splx(s); | |
730 | if(ui->ui_flags == 0) | |
731 | { | |
732 | s = spl5(); | |
733 | while(0 ==(mp = tmscpgetcp(um))) | |
734 | { | |
735 | tmscp_cp_wait++; | |
8011f5df | 736 | sleep((caddr_t)&tmscp_cp_wait,PSWP+1); |
88ac9a6a MK |
737 | tmscp_cp_wait--; |
738 | } | |
739 | (void) splx(s); | |
740 | mp->mscp_opcode = M_OP_ONLIN; | |
741 | mp->mscp_unit = ui->ui_slave; | |
e21477ad | 742 | mp->mscp_cmdref = (long) & tms->tms_type; |
88ac9a6a MK |
743 | /* need to sleep on something */ |
744 | # ifdef DEBUG | |
745 | printd("tmscpopen: bring unit %d online\n",ui->ui_unit); | |
746 | # endif | |
747 | *((long *) mp->mscp_dscptr ) |= TMSCP_OWN | TMSCP_INT; | |
748 | i = tmscpaddr->tmscpip; | |
9418508d MK |
749 | #ifdef lint |
750 | i = i; | |
751 | #endif | |
88ac9a6a MK |
752 | /* |
753 | * To make sure we wake up, timeout in 240 seconds. | |
754 | * Wakeup in tmscprsp routine. | |
755 | * 240 seconds (4 minutes) is necessary since a rewind | |
756 | * can take a few minutes. | |
757 | */ | |
758 | timeout(wakeup,(caddr_t) mp->mscp_cmdref,240 * hz); | |
759 | sleep((caddr_t) mp->mscp_cmdref,PSWP+1); | |
760 | } | |
e21477ad MK |
761 | if(ui->ui_flags == 0) { |
762 | tms->tms_openf = 0; | |
88ac9a6a | 763 | return(ENXIO); /* Didn't go online */ |
e21477ad MK |
764 | } |
765 | tms->tms_lastiow = 0; | |
88ac9a6a MK |
766 | /* |
767 | * If the high density device is not specified, set unit to low | |
768 | * density. This is done as an "internal" ioctl command so | |
769 | * that the command setup and response handling | |
770 | * is done thru "regular" command routines. | |
771 | */ | |
772 | if ((minor(dev) & T_HIDENSITY) == 0) | |
773 | tmscpcommand(dev, TMS_LOWDENSITY, 1); | |
774 | else | |
775 | tmscpcommand(dev, TMS_HIDENSITY, 1); | |
776 | return (0); | |
777 | } | |
e21477ad MK |
778 | |
779 | ||
88ac9a6a MK |
780 | /* |
781 | * Close tape device. | |
782 | * | |
783 | * If tape was open for writing or last operation was | |
784 | * a write, then write two EOF's and backspace over the last one. | |
785 | * Unless this is a non-rewinding special file, rewind the tape. | |
786 | * | |
787 | * NOTE: | |
788 | * We want to be sure that any serious exception is cleared on the | |
789 | * close. A Clear Serious Exception (CSE) modifier is always done on | |
790 | * the rewind command. For the non-rewind case we check to see if the | |
791 | * "serex" field is set in the softc struct; if it is then issue a noop | |
792 | * command with the CSE modifier. | |
793 | * Make the tape available to others, by clearing openf flag. | |
794 | */ | |
795 | tmscpclose(dev, flag) | |
796 | register dev_t dev; | |
797 | register flag; | |
798 | { | |
e21477ad | 799 | register struct tms_info *tms; |
88ac9a6a | 800 | register struct uba_device *ui; |
e21477ad | 801 | |
88ac9a6a MK |
802 | ui = tmsdinfo[TMSUNIT(dev)]; |
803 | # ifdef DEBUG | |
804 | printd("tmscpclose: ctlr = %d\n",TMSCPCTLR(dev)); | |
805 | printd("tmscpclose: unit = %d\n",TMSUNIT(dev)); | |
806 | if(tmscpdebug)DELAY(10000); | |
807 | # endif | |
e21477ad MK |
808 | tms = &tms_info[ui->ui_unit]; |
809 | if (flag == FWRITE || (flag&FWRITE) && tms->tms_lastiow) | |
88ac9a6a MK |
810 | { |
811 | /* device, command, count */ | |
812 | tmscpcommand (dev, TMS_WRITM, 1); | |
813 | tmscpcommand (dev, TMS_WRITM, 1); | |
814 | tmscpcommand (dev, TMS_BSR, 1); | |
815 | } | |
816 | if ((minor(dev)&T_NOREWIND) == 0) | |
817 | /* | |
818 | * Don't hang waiting for rewind complete. | |
819 | */ | |
820 | tmscpcommand(dev, TMS_REW, 0); | |
821 | else | |
e21477ad | 822 | if (tms->tms_serex) |
88ac9a6a MK |
823 | { |
824 | # ifdef DEBUG | |
825 | printd("tmscpclose: clearing serex\n"); | |
826 | if(tmscpdebug)DELAY(10000); | |
827 | # endif | |
828 | tmscpcommand(dev, TMS_CSE, 1); | |
829 | } | |
e21477ad | 830 | tms->tms_openf = 0; |
88ac9a6a | 831 | } |
e21477ad MK |
832 | |
833 | ||
88ac9a6a MK |
834 | /* |
835 | * Execute a command on the tape drive a specified number of times. | |
836 | * This routine sets up a buffer and calls the strategy routine which | |
837 | * links the buffer onto the drive's buffer queue. | |
838 | * The start routine will take care of creating a tmscp command packet | |
839 | * with the command. The start routine is called by the strategy or the | |
840 | * interrupt routine. | |
841 | */ | |
e21477ad | 842 | |
88ac9a6a MK |
843 | tmscpcommand (dev, com, count) |
844 | register dev_t dev; | |
845 | int com, count; | |
846 | { | |
847 | register struct uba_device *ui; | |
848 | register struct buf *bp; | |
849 | register int s; | |
850 | int unit = TMSUNIT(dev); | |
e21477ad | 851 | |
88ac9a6a MK |
852 | ui = tmsdinfo[unit]; |
853 | bp = &ctmscpbuf[ui->ui_ctlr]; | |
e21477ad | 854 | |
88ac9a6a MK |
855 | s = spl5(); |
856 | while (bp->b_flags&B_BUSY) | |
857 | { | |
858 | /* | |
859 | * This special check is because B_BUSY never | |
860 | * gets cleared in the non-waiting rewind case. | |
861 | */ | |
862 | if (bp->b_bcount == 0 && (bp->b_flags&B_DONE)) | |
863 | break; | |
864 | bp->b_flags |= B_WANTED; | |
865 | sleep((caddr_t)bp, PRIBIO); | |
866 | } | |
867 | bp->b_flags = B_BUSY|B_READ; | |
868 | splx(s); | |
869 | /* | |
870 | * Load the buffer. The b_count field gets used to hold the command | |
871 | * count. the b_resid field gets used to hold the command mneumonic. | |
872 | * These 2 fields are "known" to be "safe" to use for this purpose. | |
873 | * (Most other drivers also use these fields in this way.) | |
874 | */ | |
875 | bp->b_dev = dev; | |
876 | bp->b_bcount = count; | |
877 | bp->b_resid = com; | |
878 | bp->b_blkno = 0; | |
879 | tmscpstrategy(bp); | |
880 | /* | |
881 | * In case of rewind from close, don't wait. | |
882 | * This is the only case where count can be 0. | |
883 | */ | |
884 | if (count == 0) | |
885 | return; | |
886 | iowait(bp); | |
887 | if (bp->b_flags&B_WANTED) | |
888 | wakeup((caddr_t)bp); | |
889 | bp->b_flags &= B_ERROR; | |
890 | } | |
e21477ad | 891 | |
88ac9a6a MK |
892 | /* |
893 | * Find an unused command packet | |
894 | */ | |
895 | struct mscp * | |
896 | tmscpgetcp(um) | |
897 | struct uba_ctlr *um; | |
898 | { | |
899 | register struct mscp *mp; | |
900 | register struct tmscpca *cp; | |
901 | register struct tmscp_softc *sc; | |
902 | register int i; | |
903 | int s; | |
e21477ad | 904 | |
88ac9a6a MK |
905 | s = spl5(); |
906 | cp = &tmscp[um->um_ctlr].tmscp_ca; | |
907 | sc = &tmscp_softc[um->um_ctlr]; | |
908 | /* | |
909 | * If no credits, can't issue any commands | |
910 | * until some outstanding commands complete. | |
911 | */ | |
912 | i = sc->sc_lastcmd; | |
913 | # ifdef DEBUG | |
914 | printd10("tmscpgetcp: %d credits remain\n", sc->sc_credits); | |
915 | # endif | |
916 | if(((cp->ca_cmddsc[i]&(TMSCP_OWN|TMSCP_INT))==TMSCP_INT) && | |
917 | (sc->sc_credits >= 2)) | |
918 | { | |
919 | sc->sc_credits--; /* This commits to issuing a command */ | |
920 | cp->ca_cmddsc[i] &= ~TMSCP_INT; | |
921 | mp = &tmscp[um->um_ctlr].tmscp_cmd[i]; | |
922 | mp->mscp_unit = mp->mscp_modifier = 0; | |
923 | mp->mscp_opcode = mp->mscp_flags = 0; | |
924 | mp->mscp_bytecnt = mp->mscp_buffer = 0; | |
925 | sc->sc_lastcmd = (i + 1) % NCMD; | |
926 | (void) splx(s); | |
927 | return(mp); | |
928 | } | |
929 | (void) splx(s); | |
930 | return(NULL); | |
931 | } | |
e21477ad MK |
932 | |
933 | ||
88ac9a6a MK |
934 | /* |
935 | * Initialize a TMSCP device. Set up UBA mapping registers, | |
936 | * initialize data structures, and start hardware | |
937 | * initialization sequence. | |
938 | */ | |
939 | tmscpinit (d) | |
940 | int d; /* index to the controller */ | |
941 | { | |
942 | register struct tmscp_softc *sc; | |
e21477ad | 943 | register struct tmscp *t; /* communications area; cmd & resp packets */ |
88ac9a6a MK |
944 | struct tmscpdevice *tmscpaddr; |
945 | struct uba_ctlr *um; | |
e21477ad | 946 | |
88ac9a6a MK |
947 | sc = &tmscp_softc[d]; |
948 | um = tmscpminfo[d]; | |
949 | um->um_tab.b_active++; | |
950 | t = &tmscp[d]; | |
951 | tmscpaddr = (struct tmscpdevice *)um->um_addr; | |
952 | if (sc->sc_mapped == 0) | |
953 | { | |
954 | /* | |
955 | * Map the communications area and command | |
956 | * and response packets into Unibus address | |
957 | * space. | |
958 | */ | |
e21477ad | 959 | sc->sc_ubainfo = uballoc(um->um_ubanum, (caddr_t)t, sizeof (struct tmscp), 0); |
88ac9a6a MK |
960 | # ifdef MVAX |
961 | if (cpu == MVAX_I) | |
e21477ad | 962 | sc->sc_tmscp = (struct tmscp *)(sc->sc_ubainfo & 0x3fffff); |
88ac9a6a MK |
963 | else |
964 | # endif MVAX | |
e21477ad | 965 | sc->sc_tmscp = (struct tmscp *)(sc->sc_ubainfo & 0x3ffff); |
88ac9a6a MK |
966 | sc->sc_mapped = 1; |
967 | } | |
e21477ad | 968 | |
88ac9a6a MK |
969 | /* |
970 | * Start the hardware initialization sequence. | |
971 | */ | |
972 | tmscpaddr->tmscpip = 0; /* start initialization */ | |
e21477ad | 973 | |
88ac9a6a MK |
974 | while((tmscpaddr->tmscpsa & TMSCP_STEP1) == 0) |
975 | { | |
976 | # ifdef DEBUG | |
977 | printd("tmscpinit: tmscpsa = 0%o\n",tmscpaddr->tmscpsa); | |
978 | DELAY(100000); | |
979 | # endif | |
980 | if(tmscpaddr->tmscpsa & TMSCP_ERR) | |
981 | return(0); /* CHECK */ | |
982 | } | |
e21477ad | 983 | tmscpaddr->tmscpsa=TMSCP_ERR|(NCMDL2<<11)|(NRSPL2<<8)|TMSCP_IE|(sc->sc_ivec/4); |
88ac9a6a MK |
984 | /* |
985 | * Initialization continues in the interrupt routine. | |
986 | */ | |
987 | sc->sc_state = S_STEP1; | |
988 | sc->sc_credits = 0; | |
989 | return(1); | |
990 | } | |
e21477ad MK |
991 | |
992 | ||
88ac9a6a MK |
993 | /* |
994 | * Start I/O operation | |
995 | * This code is convoluted. The majority of it was copied from the uda driver. | |
996 | */ | |
e21477ad | 997 | |
88ac9a6a MK |
998 | tmscpstart(um) |
999 | register struct uba_ctlr *um; | |
1000 | { | |
1001 | register struct buf *bp, *dp; | |
1002 | register struct mscp *mp; | |
1003 | register struct tmscp_softc *sc; | |
e21477ad | 1004 | register struct tms_info *tms; |
88ac9a6a MK |
1005 | register struct uba_device *ui; |
1006 | struct tmscpdevice *tmscpaddr; | |
1007 | struct tmscp *tm = &tmscp[um->um_ctlr]; | |
1008 | int i,tempi; | |
1009 | char ioctl; /* flag: set true if its an IOCTL command */ | |
e21477ad | 1010 | |
88ac9a6a MK |
1011 | sc = &tmscp_softc[um->um_ctlr]; |
1012 | ||
1013 | for(;;) | |
1014 | { | |
1015 | if ((dp = um->um_tab.b_actf) == NULL) | |
1016 | { | |
1017 | /* | |
1018 | * Release unneeded UBA resources and return | |
1019 | * (drive was inactive) | |
1020 | */ | |
1021 | um->um_tab.b_active = 0; | |
1022 | break; | |
1023 | } | |
1024 | if ((bp = dp->b_actf) == NULL) | |
1025 | { | |
1026 | /* | |
1027 | * No more requests for this drive, remove | |
1028 | * from controller queue and look at next drive. | |
1029 | * We know we're at the head of the controller queue. | |
1030 | */ | |
1031 | dp->b_active = 0; | |
1032 | um->um_tab.b_actf = dp->b_forw; | |
1033 | continue; /* Need to check for loop */ | |
1034 | } | |
1035 | um->um_tab.b_active++; | |
1036 | tmscpaddr = (struct tmscpdevice *)um->um_addr; | |
e21477ad MK |
1037 | ui = tmsdinfo[(TMSUNIT(bp->b_dev))]; |
1038 | tms = &tms_info[ui->ui_unit]; | |
88ac9a6a MK |
1039 | if ((tmscpaddr->tmscpsa&TMSCP_ERR) || sc->sc_state != S_RUN) |
1040 | { | |
e21477ad MK |
1041 | tprintf(tms->tms_ttyp, |
1042 | "tms%d: hard error bn%d\n", | |
1043 | minor(bp->b_dev)&03, bp->b_blkno); | |
1044 | log(TMS_PRI, "tmscp%d: sa 0%o, state %d\n",um->um_ctlr, | |
88ac9a6a | 1045 | tmscpaddr->tmscpsa&0xffff, sc->sc_state); |
8011f5df | 1046 | (void)tmscpinit(um->um_ctlr); |
88ac9a6a MK |
1047 | /* SHOULD REQUEUE OUTSTANDING REQUESTS, LIKE TMSCPRESET */ |
1048 | break; | |
1049 | } | |
88ac9a6a MK |
1050 | /* |
1051 | * Default is that last command was NOT a write command; | |
1052 | * if a write command is done it will be detected in tmscprsp. | |
1053 | */ | |
e21477ad | 1054 | tms->tms_lastiow = 0; |
88ac9a6a MK |
1055 | if (ui->ui_flags == 0) |
1056 | { /* not online */ | |
1057 | if ((mp = tmscpgetcp(um)) == NULL) | |
1058 | break; | |
1059 | mp->mscp_opcode = M_OP_ONLIN; | |
1060 | mp->mscp_unit = ui->ui_slave; | |
1061 | dp->b_active = 2; | |
1062 | um->um_tab.b_actf = dp->b_forw; /* remove from controller q */ | |
1063 | *((long *)mp->mscp_dscptr) |= TMSCP_OWN|TMSCP_INT; | |
1064 | if (tmscpaddr->tmscpsa&TMSCP_ERR) | |
1065 | printf("tmscp%d fatal error (0%o)\n",um->um_ctlr, | |
1066 | tmscpaddr->tmscpsa&0xffff); | |
1067 | i = tmscpaddr->tmscpip; | |
1068 | continue; | |
1069 | } | |
1070 | switch (cpu) { | |
e21477ad | 1071 | |
88ac9a6a MK |
1072 | case VAX_8600: |
1073 | case VAX_780: | |
1074 | i = UBA_NEEDBDP|UBA_CANTWAIT; | |
1075 | break; | |
88ac9a6a MK |
1076 | case VAX_750: |
1077 | i = um->um_ubinfo|UBA_HAVEBDP|UBA_CANTWAIT; | |
1078 | break; | |
1079 | case VAX_730: | |
1080 | i = UBA_CANTWAIT; | |
1081 | break; | |
88ac9a6a MK |
1082 | } /* end switch (cpu) */ |
1083 | /* | |
e21477ad | 1084 | * If command is an ioctl command then set the ioctl flag for later use. |
88ac9a6a MK |
1085 | * If not (i.e. it is a read or write) then attempt |
1086 | * to set up a buffer pointer. | |
1087 | */ | |
1088 | ioctl = 0; | |
1089 | if (bp == &ctmscpbuf[um->um_ctlr]) | |
1090 | ioctl = 1; | |
1091 | else | |
1092 | if ((i = ubasetup(um->um_ubanum, bp, i)) == 0) | |
1093 | { | |
1094 | if(dp->b_qsize != 0) | |
1095 | break; /* When a command completes and */ | |
e21477ad | 1096 | /* frees a bdp tmscpstart will be called */ |
88ac9a6a MK |
1097 | if ((mp = tmscpgetcp(um)) == NULL) |
1098 | break; | |
1099 | # ifdef DEBUG | |
e21477ad | 1100 | printd("tmscpstart: GTUNT %d ubasetup = %d\n",ui->ui_unit, i); |
88ac9a6a MK |
1101 | if(tmscpdebug)DELAY(10000); |
1102 | # endif | |
1103 | mp->mscp_opcode = M_OP_GTUNT; | |
1104 | mp->mscp_unit = ui->ui_slave; | |
1105 | *((long *)mp->mscp_dscptr) |= TMSCP_OWN|TMSCP_INT; | |
1106 | if (tmscpaddr->tmscpsa&TMSCP_ERR) | |
e21477ad | 1107 | printf("tmscp%d: fatal error (0%o)\n",um->um_ctlr, |
88ac9a6a MK |
1108 | tmscpaddr->tmscpsa&0xffff); |
1109 | i = tmscpaddr->tmscpip; /* initiate polling */ | |
1110 | break; | |
1111 | } | |
e21477ad MK |
1112 | # if defined(VAX750) |
1113 | if (cpu == VAX_750) | |
88ac9a6a MK |
1114 | tempi = i & 0xfffffff; /* mask off bdp */ |
1115 | else | |
1116 | # endif | |
1117 | tempi = i; | |
1118 | if ((mp = tmscpgetcp(um)) == NULL) | |
1119 | { | |
1120 | if (!ioctl) /* only need to release if NOT ioctl */ | |
1121 | ubarelse(um->um_ubanum,&tempi); | |
1122 | break; | |
1123 | } | |
1124 | mp->mscp_cmdref = (long)bp; /* pointer to get back */ | |
1125 | mp->mscp_unit = ui->ui_slave; | |
1126 | /* | |
1127 | * If its an ioctl-type command then set up the appropriate | |
1128 | * tmscp command; by doing a switch on the "b_resid" field where | |
1129 | * the command mneumonic is stored. | |
1130 | */ | |
1131 | if (ioctl) | |
1132 | { | |
1133 | # ifdef DEBUG | |
1134 | printd("tmscpstart: doing ioctl cmd %d\n", bp->b_resid); | |
1135 | # endif | |
1136 | /* | |
1137 | * The reccnt and tmkcnt fields are set to zero by the getcp | |
1138 | * routine (as bytecnt and buffer fields). Thus reccnt and | |
1139 | * tmkcnt are only modified here if they need to be set to | |
1140 | * a non-zero value. | |
1141 | */ | |
9418508d | 1142 | switch ((int)bp->b_resid) { |
e21477ad | 1143 | |
88ac9a6a MK |
1144 | case TMS_WRITM: |
1145 | mp->mscp_opcode = M_OP_WRITM; | |
1146 | break; | |
1147 | case TMS_FSF: | |
1148 | mp->mscp_opcode = M_OP_REPOS; | |
1149 | mp->mscp_tmkcnt = bp->b_bcount; | |
1150 | break; | |
1151 | case TMS_BSF: | |
1152 | mp->mscp_opcode = M_OP_REPOS; | |
1153 | mp->mscp_modifier = M_MD_REVRS; | |
1154 | mp->mscp_tmkcnt = bp->b_bcount; | |
1155 | break; | |
1156 | case TMS_FSR: | |
1157 | mp->mscp_opcode = M_OP_REPOS; | |
1158 | mp->mscp_modifier = M_MD_OBJCT; | |
1159 | mp->mscp_reccnt = bp->b_bcount; | |
1160 | break; | |
1161 | case TMS_BSR: | |
1162 | mp->mscp_opcode = M_OP_REPOS; | |
1163 | mp->mscp_modifier = M_MD_REVRS | M_MD_OBJCT; | |
1164 | mp->mscp_reccnt = bp->b_bcount; | |
1165 | break; | |
1166 | /* | |
1167 | * Clear serious exception is done for Rewind & Available cmds | |
1168 | */ | |
1169 | case TMS_REW: | |
1170 | mp->mscp_opcode = M_OP_REPOS; | |
1171 | mp->mscp_modifier = M_MD_REWND | M_MD_CLSEX; | |
1172 | if (bp->b_bcount == 0) | |
1173 | mp->mscp_modifier |= M_MD_IMMED; | |
e21477ad | 1174 | tms->tms_serex = 0; |
88ac9a6a MK |
1175 | break; |
1176 | case TMS_OFFL: | |
1177 | mp->mscp_opcode = M_OP_AVAIL; | |
1178 | mp->mscp_modifier = M_MD_UNLOD | M_MD_CLSEX; | |
e21477ad | 1179 | tms->tms_serex = 0; |
88ac9a6a MK |
1180 | break; |
1181 | case TMS_SENSE: | |
1182 | mp->mscp_opcode = M_OP_GTUNT; | |
1183 | break; | |
1184 | case TMS_CACHE: | |
1185 | mp->mscp_opcode = M_OP_STUNT; | |
e21477ad MK |
1186 | tms->tms_unitflgs |= M_UF_WBKNV; |
1187 | mp->mscp_unitflgs = tms->tms_unitflgs; | |
1188 | mp->mscp_format = tms->tms_format; | |
88ac9a6a MK |
1189 | /* default device dependant parameters */ |
1190 | mp->mscp_mediaid = 0; | |
1191 | break; | |
1192 | case TMS_NOCACHE: | |
1193 | mp->mscp_opcode = M_OP_STUNT; | |
e21477ad MK |
1194 | tms->tms_unitflgs &= ~(M_UF_WBKNV); |
1195 | mp->mscp_unitflgs = tms->tms_unitflgs; | |
1196 | mp->mscp_format = tms->tms_format; | |
88ac9a6a MK |
1197 | /* default device dependant parameters */ |
1198 | mp->mscp_mediaid = 0; | |
1199 | break; | |
1200 | case TMS_CSE: | |
1201 | /* | |
1202 | * This is a no-op command. It performs a | |
1203 | * clear serious exception only. (Done on a | |
1204 | * non-rewinding close after a serious exception.) | |
1205 | */ | |
1206 | mp->mscp_opcode = M_OP_REPOS; | |
1207 | mp->mscp_modifier = M_MD_CLSEX; | |
e21477ad MK |
1208 | tms->tms_serex = 0; |
1209 | tms->tms_clserex = 1; | |
88ac9a6a MK |
1210 | break; |
1211 | case TMS_LOWDENSITY: | |
1212 | /* | |
1213 | * Set the unit to low density | |
1214 | */ | |
1215 | mp->mscp_opcode = M_OP_STUNT; | |
e21477ad MK |
1216 | mp->mscp_unitflgs = tms->tms_unitflgs; |
1217 | mp->mscp_mediaid = 0; /* default device dependant parameters */ | |
1218 | if ((tms->tms_fmtmenu & M_TF_800) != 0) | |
88ac9a6a MK |
1219 | mp->mscp_format = M_TF_800; |
1220 | else | |
e21477ad MK |
1221 | mp->mscp_format = M_TF_PE & tms->tms_fmtmenu; |
1222 | tms->tms_format = mp->mscp_format; | |
88ac9a6a MK |
1223 | break; |
1224 | case TMS_HIDENSITY: | |
1225 | /* | |
1226 | * Set the unit to high density (format == 0) | |
1227 | */ | |
1228 | mp->mscp_opcode = M_OP_STUNT; | |
e21477ad MK |
1229 | mp->mscp_unitflgs = tms->tms_unitflgs; |
1230 | mp->mscp_mediaid = 0; /* default device dependant parameters */ | |
88ac9a6a | 1231 | mp->mscp_format = 0; |
e21477ad | 1232 | tms->tms_format = 0; |
88ac9a6a MK |
1233 | break; |
1234 | default: | |
1235 | printf("Bad ioctl on tms unit %d\n", ui->ui_unit); | |
1236 | /* Need a no-op. Reposition no amount */ | |
1237 | mp->mscp_opcode = M_OP_REPOS; | |
1238 | break; | |
1239 | } /* end switch (bp->b_resid) */ | |
1240 | } | |
1241 | else /* Its a read/write command (not an ioctl) */ | |
1242 | { | |
1243 | mp->mscp_opcode = bp->b_flags&B_READ ? M_OP_READ : M_OP_WRITE; | |
1244 | mp->mscp_bytecnt = bp->b_bcount; | |
1245 | # if MVAX | |
1246 | if (cpu == MVAX_I) | |
1247 | { | |
1248 | mp->mscp_buffer = (i & 0x3ffff) | TMSCP_MAP; | |
e21477ad | 1249 | mp->mscp_mapbase = (long)&(uba_hd[um->um_ubanum].uh_physuba->uba_map[0]); |
88ac9a6a MK |
1250 | } |
1251 | else | |
1252 | # endif MVAX | |
1253 | mp->mscp_buffer = (i & 0x3ffff) | (((i>>28)&0xf)<<24); | |
e21477ad | 1254 | |
88ac9a6a MK |
1255 | bp->b_ubinfo = tempi; /* save mapping info */ |
1256 | } | |
e21477ad | 1257 | if (tms->tms_serex == 2) /* if tape mark read */ |
88ac9a6a | 1258 | { |
e21477ad MK |
1259 | mp->mscp_modifier |= M_MD_CLSEX; /* clear serious exc */ |
1260 | tms->tms_serex = 0; | |
88ac9a6a MK |
1261 | } |
1262 | *((long *)mp->mscp_dscptr) |= TMSCP_OWN|TMSCP_INT; | |
1263 | # ifdef DEBUG | |
e21477ad | 1264 | printd("tmscpstart: opcode 0%o mod %o unit %d cnt %d\n",mp->mscp_opcode,mp->mscp_modifier,mp->mscp_unit,mp->mscp_bytecnt); |
88ac9a6a MK |
1265 | if(tmscpdebug)DELAY(100000); |
1266 | # endif | |
1267 | i = tmscpaddr->tmscpip; /* initiate polling */ | |
1268 | dp->b_qsize++; | |
1269 | /* | |
1270 | * Move drive to the end of the controller queue | |
1271 | */ | |
1272 | if (dp->b_forw != NULL) | |
1273 | { | |
1274 | um->um_tab.b_actf = dp->b_forw; | |
1275 | um->um_tab.b_actl->b_forw = dp; | |
1276 | um->um_tab.b_actl = dp; | |
1277 | dp->b_forw = NULL; | |
1278 | } | |
1279 | /* | |
1280 | * Move buffer to I/O wait queue | |
1281 | */ | |
1282 | dp->b_actf = bp->av_forw; | |
1283 | dp = &tmscpwtab[um->um_ctlr]; | |
1284 | bp->av_forw = dp; | |
1285 | bp->av_back = dp->av_back; | |
1286 | dp->av_back->av_forw = bp; | |
1287 | dp->av_back = bp; | |
1288 | if (tmscpaddr->tmscpsa&TMSCP_ERR) | |
1289 | { | |
e21477ad | 1290 | printf("tmscp%d: fatal error (0%o)\n", um->um_ctlr, tmscpaddr->tmscpsa&0xffff); |
8011f5df | 1291 | (void)tmscpinit(um->um_ctlr); |
88ac9a6a MK |
1292 | break; |
1293 | } | |
1294 | } /* end for */ | |
1295 | /* | |
1296 | * Check for response ring transitions lost in the | |
1297 | * Race condition | |
1298 | */ | |
1299 | for (i = sc->sc_lastrsp;; i++) | |
1300 | { | |
1301 | i %= NRSP; | |
1302 | if (tm->tmscp_ca.ca_rspdsc[i]&TMSCP_OWN) | |
1303 | break; | |
1304 | tmscprsp(um, tm, sc, i); | |
1305 | tm->tmscp_ca.ca_rspdsc[i] |= TMSCP_OWN; | |
1306 | } | |
1307 | sc->sc_lastrsp = i; | |
1308 | } | |
e21477ad MK |
1309 | |
1310 | ||
88ac9a6a MK |
1311 | /* |
1312 | * Process a response packet | |
1313 | */ | |
1314 | tmscprsp(um, tm, sc, i) | |
1315 | register struct uba_ctlr *um; | |
1316 | register struct tmscp *tm; | |
1317 | register struct tmscp_softc *sc; | |
1318 | int i; | |
1319 | { | |
1320 | register struct mscp *mp; | |
e21477ad | 1321 | register struct tms_info *tms; |
88ac9a6a | 1322 | struct uba_device *ui; |
9418508d | 1323 | struct buf *dp, *bp; |
88ac9a6a | 1324 | int st; |
e21477ad | 1325 | |
88ac9a6a MK |
1326 | mp = &tm->tmscp_rsp[i]; |
1327 | mp->mscp_header.tmscp_msglen = mscp_msglen; | |
e21477ad | 1328 | sc->sc_credits += mp->mscp_header.tmscp_credits & 0xf; /* low 4 bits */ |
88ac9a6a MK |
1329 | if ((mp->mscp_header.tmscp_credits & 0xf0) > 0x10) /* Check */ |
1330 | return; | |
1331 | # ifdef DEBUG | |
e21477ad | 1332 | printd("tmscprsp, opcode 0%o status 0%o\n",mp->mscp_opcode,mp->mscp_status&M_ST_MASK); |
88ac9a6a MK |
1333 | # endif |
1334 | /* | |
1335 | * If it's an error log message (datagram), | |
1336 | * pass it on for more extensive processing. | |
1337 | */ | |
1338 | if ((mp->mscp_header.tmscp_credits & 0xf0) == 0x10) | |
1339 | { /* check */ | |
1340 | tmserror(um, (struct mslg *)mp); | |
1341 | return; | |
1342 | } | |
1343 | st = mp->mscp_status&M_ST_MASK; | |
1344 | /* | |
1345 | * The controller interrupts as drive 0. | |
1346 | * This means that you must check for controller interrupts | |
1347 | * before you check to see if there is a drive 0. | |
1348 | */ | |
1349 | if((M_OP_STCON|M_OP_END) == mp->mscp_opcode) | |
1350 | { | |
1351 | if (st == M_ST_SUCC) | |
1352 | { | |
1353 | # ifdef DEBUG | |
e21477ad | 1354 | printd("ctlr has %d credits\n", mp->mscp_header.tmscp_credits & 0xf); |
88ac9a6a MK |
1355 | printd("ctlr timeout = %d\n", mp->mscp_cnttmo); |
1356 | # endif | |
1357 | sc->sc_state = S_RUN; | |
1358 | } | |
1359 | else | |
1360 | sc->sc_state = S_IDLE; | |
1361 | um->um_tab.b_active = 0; | |
1362 | wakeup((caddr_t)um); | |
1363 | return; | |
1364 | } | |
e21477ad | 1365 | if (mp->mscp_unit >= NTMS) |
88ac9a6a MK |
1366 | return; |
1367 | if ((ui = tmscpip[um->um_ctlr][mp->mscp_unit]) == 0) | |
1368 | return; | |
e21477ad | 1369 | tms = &tms_info[ui->ui_unit]; |
88ac9a6a MK |
1370 | /* |
1371 | * Save endcode, endflags, and status for mtioctl get unit status. | |
1372 | * NOTE: Don't do this on Clear serious exception (reposition no-op); | |
1373 | * which is done on close since this would | |
1374 | * overwrite the real status we want. | |
1375 | */ | |
e21477ad | 1376 | if (tms->tms_clserex != 1) |
88ac9a6a | 1377 | { |
e21477ad MK |
1378 | tms->tms_endcode = mp->mscp_opcode; |
1379 | tms->tms_flags = mp->mscp_flags; | |
1380 | tms->tms_status = st; | |
88ac9a6a | 1381 | } |
e21477ad MK |
1382 | else tms->tms_clserex = 0; |
1383 | ||
88ac9a6a MK |
1384 | switch (mp->mscp_opcode) { |
1385 | case M_OP_ONLIN|M_OP_END: | |
e21477ad | 1386 | tms->tms_type = mp->mscp_mediaid; |
88ac9a6a MK |
1387 | dp = &tmsutab[ui->ui_unit]; |
1388 | if (st == M_ST_SUCC) | |
1389 | { | |
1390 | /* | |
1391 | * Link the drive onto the controller queue | |
1392 | */ | |
1393 | dp->b_forw = NULL; | |
1394 | if (um->um_tab.b_actf == NULL) | |
1395 | um->um_tab.b_actf = dp; | |
1396 | else | |
1397 | um->um_tab.b_actl->b_forw = dp; | |
1398 | um->um_tab.b_actl = dp; | |
1399 | ui->ui_flags = 1; /* mark it online */ | |
e21477ad | 1400 | tms->tms_dsize=(daddr_t)mp->mscp_maxwrt; |
88ac9a6a MK |
1401 | # ifdef DEBUG |
1402 | printd("tmscprsp: unit %d online\n", mp->mscp_unit); | |
1403 | # endif | |
1404 | /* | |
1405 | * This define decodes the Media type identifier | |
1406 | */ | |
e21477ad | 1407 | # define F_to_C(x,i) ( ((x)->mscp_mediaid) >> (i*5+7) & 0x1f ? ( ( (((x)->mscp_mediaid) >>( i*5 + 7)) & 0x1f) + 'A' - 1): ' ') |
88ac9a6a MK |
1408 | # ifdef DEBUG |
1409 | printd("tmscprsp: unit %d online %x %c%c %c%c%c%d\n" | |
1410 | ,mp->mscp_unit, mp->mscp_mediaid ,F_to_C(mp,4) | |
1411 | ,F_to_C(mp,3), F_to_C(mp,2) | |
e21477ad | 1412 | ,F_to_C(mp,1), F_to_C(mp,0), mp->mscp_mediaid & 0x7f); |
88ac9a6a MK |
1413 | # endif |
1414 | dp->b_active = 1; | |
1415 | } /* end if st == M_ST_SUCC */ | |
1416 | else | |
1417 | { | |
9418508d | 1418 | if (bp = dp->b_actf) |
e21477ad MK |
1419 | tprintf(tms->tms_ttyp, |
1420 | "tms%d: hard error bn%d: OFFLINE\n", | |
1421 | minor(bp->b_dev)&03, bp->b_blkno); | |
88ac9a6a | 1422 | else |
e21477ad MK |
1423 | tprintf(tms->tms_ttyp, |
1424 | "tms%d: hard error: OFFLINE\n", | |
9418508d | 1425 | ui->ui_unit); |
88ac9a6a MK |
1426 | while (bp = dp->b_actf) |
1427 | { | |
1428 | dp->b_actf = bp->av_forw; | |
1429 | bp->b_flags |= B_ERROR; | |
1430 | iodone(bp); | |
1431 | } | |
1432 | } | |
1433 | if(mp->mscp_cmdref!=NULL) | |
1434 | /* Seems to get lost sometimes in uda */ | |
8011f5df | 1435 | wakeup((caddr_t)mp->mscp_cmdref); |
88ac9a6a MK |
1436 | break; |
1437 | /* | |
1438 | * The AVAILABLE ATTENTION message occurs when the | |
1439 | * unit becomes available after loading, | |
1440 | * marking the unit offline (ui_flags = 0) will force an | |
1441 | * online command prior to using the unit. | |
1442 | */ | |
1443 | case M_OP_AVATN: | |
1444 | ui->ui_flags = 0; | |
e21477ad | 1445 | tms->tms_type = mp->mscp_mediaid; |
88ac9a6a MK |
1446 | break; |
1447 | case M_OP_END: | |
1448 | /* | |
1449 | * An endcode without an opcode (0200) is an invalid command. | |
1450 | * The mscp specification states that this would be a protocol | |
1451 | * type error, such as illegal opcodes. The mscp spec. also | |
1452 | * states that parameter error type of invalid commands should | |
e21477ad MK |
1453 | * return the normal end message for the command. This does not appear |
1454 | * to be the case. An invalid logical block number returned an endcode | |
88ac9a6a MK |
1455 | * of 0200 instead of the 0241 (read) that was expected. |
1456 | */ | |
1457 | ||
1458 | printf("tmscp%d: invalid cmd, endcode = %o, status=%o\n", | |
1459 | um->um_ctlr, mp->mscp_opcode, st); | |
1460 | bp = (struct buf *)mp->mscp_cmdref; | |
1461 | /* | |
1462 | * Unlink buffer from I/O wait queue. | |
1463 | * And signal iodone, so the higher level command can exit! | |
1464 | * | |
1465 | */ | |
1466 | bp->av_back->av_forw = bp->av_forw; | |
1467 | bp->av_forw->av_back = bp->av_back; | |
1468 | dp = &tmsutab[ui->ui_unit]; | |
1469 | dp->b_qsize--; | |
1470 | iodone(bp); | |
1471 | break; | |
1472 | case M_OP_WRITE|M_OP_END: | |
1473 | /* mark the last io op as a write */ | |
e21477ad | 1474 | tms->tms_lastiow = 1; |
88ac9a6a MK |
1475 | case M_OP_READ|M_OP_END: |
1476 | case M_OP_WRITM|M_OP_END: | |
1477 | case M_OP_REPOS|M_OP_END: | |
1478 | case M_OP_STUNT|M_OP_END: | |
1479 | /* | |
1480 | * The AVAILABLE message occurs when the mt ioctl "rewoffl" is | |
1481 | * issued. For the ioctl, "rewoffl", a tmscp AVAILABLE command is | |
1482 | * done with the UNLOAD modifier. This performs a rewind, followed | |
1483 | * by marking the unit offline. So mark the unit offline | |
1484 | * software wise as well (ui_flags = 0 and | |
e21477ad | 1485 | * tms->tms_openf = 0). |
88ac9a6a MK |
1486 | */ |
1487 | case M_OP_AVAIL|M_OP_END: | |
1488 | # ifdef DEBUG | |
1489 | printd("tmscprsp: position = %d\n", mp->mscp_lbn); | |
1490 | # endif | |
1491 | bp = (struct buf *)mp->mscp_cmdref; | |
1492 | /* | |
e21477ad | 1493 | * Only need to release buffer if the command was read or write. |
88ac9a6a MK |
1494 | * No ubasetup was done in "tmscpstart" if it was an ioctl cmd. |
1495 | */ | |
1496 | if (mp->mscp_opcode == (M_OP_READ|M_OP_END) || | |
1497 | mp->mscp_opcode == (M_OP_WRITE|M_OP_END)) | |
1498 | ubarelse(um->um_ubanum, (int *)&bp->b_ubinfo); | |
1499 | /* | |
1500 | * Unlink buffer from I/O wait queue. | |
1501 | */ | |
1502 | bp->av_back->av_forw = bp->av_forw; | |
1503 | bp->av_forw->av_back = bp->av_back; | |
e21477ad MK |
1504 | # if defined(VAX750) |
1505 | if (cpu == VAX_750) { | |
1506 | if ((tmscpwtab[um->um_ctlr].av_forw == &tmscpwtab[um->um_ctlr]) && | |
88ac9a6a MK |
1507 | (um->um_ubinfo != 0)) { |
1508 | ubarelse(um->um_ubanum, &um->um_ubinfo); | |
1509 | } | |
1510 | else { | |
1511 | if (mp->mscp_opcode == (M_OP_READ|M_OP_END) || | |
1512 | mp->mscp_opcode == (M_OP_WRITE|M_OP_END)) | |
e21477ad | 1513 | UBAPURGE(uba_hd[um->um_ubanum].uh_uba,(um->um_ubinfo >>28) & 0x0f); |
88ac9a6a MK |
1514 | } |
1515 | } | |
1516 | # endif | |
1517 | dp = &tmsutab[ui->ui_unit]; | |
1518 | dp->b_qsize--; | |
1519 | if (st == M_ST_OFFLN || st == M_ST_AVLBL) | |
1520 | { | |
1521 | ui->ui_flags = 0; /* mark unit offline */ | |
e21477ad MK |
1522 | tms->tms_openf = 0; |
1523 | tms->tms_type = mp->mscp_mediaid; | |
88ac9a6a MK |
1524 | /* |
1525 | * Link the buffer onto the front of the drive queue | |
1526 | */ | |
1527 | if ((bp->av_forw = dp->b_actf) == 0) | |
1528 | dp->b_actl = bp; | |
1529 | dp->b_actf = bp; | |
1530 | /* | |
1531 | * Link the drive onto the controller queue | |
1532 | */ | |
1533 | if (dp->b_active == 0) | |
1534 | { | |
1535 | dp->b_forw = NULL; | |
1536 | if (um->um_tab.b_actf == NULL) | |
1537 | um->um_tab.b_actf = dp; | |
1538 | else | |
1539 | um->um_tab.b_actl->b_forw = dp; | |
1540 | um->um_tab.b_actl = dp; | |
1541 | dp->b_active = 1; | |
1542 | } | |
e21477ad MK |
1543 | # if defined(VAX750) |
1544 | if (cpu == VAX_750 && um->um_ubinfo == 0) | |
1545 | um->um_ubinfo = uballoc(um->um_ubanum, (caddr_t)0, 0, UBA_NEEDBDP); | |
88ac9a6a MK |
1546 | # endif |
1547 | return; | |
1548 | } | |
1549 | if (st != M_ST_SUCC) | |
1550 | { | |
1551 | if (mp->mscp_flags & M_EF_SEREX) | |
e21477ad | 1552 | tms->tms_serex = 1; |
88ac9a6a MK |
1553 | if (st != M_ST_TAPEM) |
1554 | { | |
e21477ad MK |
1555 | tprintf(tms->tms_ttyp, |
1556 | "tms%d: hard error bn%d\n", | |
1557 | minor(bp->b_dev)&03, bp->b_blkno); | |
1558 | errinfo(st); /* produces more info */ | |
88ac9a6a | 1559 | # ifdef DEBUG |
e21477ad MK |
1560 | printd("tmscprsp: error; status sub-code = 0%o, flags = 0%o\n", |
1561 | (mp->mscp_status & 177740)>>5, mp->mscp_flags); | |
88ac9a6a MK |
1562 | # endif |
1563 | bp->b_flags |= B_ERROR; | |
1564 | } | |
1565 | else | |
1566 | /* Hit a tape mark - Set serex flag to | |
1567 | * a special value so we can clear the | |
1568 | * serious exception on the next command. | |
1569 | */ | |
e21477ad | 1570 | tms->tms_serex = 2; |
88ac9a6a MK |
1571 | } |
1572 | /* | |
1573 | * The tmscp spec states that controllers do not have to | |
1574 | * report the number of records or files skipped. So on | |
1575 | * reposition commands we go strictly by cmd status. | |
1576 | */ | |
1577 | if (mp->mscp_opcode != (M_OP_REPOS|M_OP_END)) | |
1578 | bp->b_resid = bp->b_bcount - mp->mscp_bytecnt; | |
1579 | else | |
1580 | bp->b_resid = 0; | |
e21477ad | 1581 | tms->tms_resid = bp->b_resid; |
88ac9a6a MK |
1582 | iodone(bp); |
1583 | break; | |
e21477ad | 1584 | |
88ac9a6a MK |
1585 | case M_OP_GTUNT|M_OP_END: |
1586 | # ifdef DEBUG | |
1587 | printd("tmscprsp: GTUNT end packet status = 0%o\n",st); | |
e21477ad | 1588 | printd("tmscprsp: unit %d mediaid %x %c%c %c%c%c%d %x %x t=%d\n" |
88ac9a6a MK |
1589 | ,mp->mscp_unit, mp->mscp_mediaid |
1590 | ,F_to_C(mp,4),F_to_C(mp,3),F_to_C(mp,2) | |
1591 | ,F_to_C(mp,1),F_to_C(mp,0) | |
1592 | ,mp->mscp_mediaid & 0x7f | |
1593 | ,mp->mscp_unitid.val[0] | |
1594 | ,mp->mscp_unitid.val[1] | |
1595 | ,mp->mscp_format); | |
1596 | # endif | |
e21477ad MK |
1597 | tms->tms_type = mp->mscp_mediaid; |
1598 | tms->tms_fmtmenu = mp->mscp_fmtmenu; | |
1599 | tms->tms_unitflgs = mp->mscp_unitflgs; | |
88ac9a6a | 1600 | break; |
e21477ad | 1601 | |
88ac9a6a MK |
1602 | default: |
1603 | printf("tmscp unknown packet\n"); | |
1604 | tmserror(um, (struct mslg *)mp); | |
1605 | } /* end switch mp->mscp_opcode */ | |
1606 | } | |
e21477ad MK |
1607 | |
1608 | ||
88ac9a6a MK |
1609 | /* |
1610 | * Give a meaningful error when the mscp_status field returns an error code. | |
1611 | */ | |
e21477ad | 1612 | |
88ac9a6a MK |
1613 | errinfo(st) |
1614 | int st; /* the status code */ | |
1615 | { | |
1616 | switch(st) { | |
1617 | case M_ST_ICMD: | |
1618 | printf("invalid command\n"); | |
1619 | break; | |
1620 | case M_ST_ABRTD: | |
1621 | printf("command aborted\n"); | |
1622 | break; | |
1623 | case M_ST_OFFLN: | |
1624 | printf("unit offline\n"); | |
1625 | break; | |
1626 | case M_ST_WRTPR: | |
1627 | printf("unit write protected\n"); | |
1628 | break; | |
1629 | case M_ST_COMP: | |
1630 | printf("compare error\n"); | |
1631 | break; | |
1632 | case M_ST_DATA: | |
1633 | printf("data error\n"); | |
1634 | break; | |
1635 | case M_ST_HSTBF: | |
1636 | printf("host buffer access error\n"); | |
1637 | break; | |
1638 | case M_ST_CNTLR: | |
1639 | printf("controller error\n"); | |
1640 | break; | |
1641 | case M_ST_DRIVE: | |
1642 | printf("drive error\n"); | |
1643 | break; | |
1644 | case M_ST_FMTER: | |
1645 | printf("formatter error\n"); | |
1646 | break; | |
1647 | case M_ST_BOT: | |
1648 | printf("BOT encountered\n"); | |
1649 | break; | |
1650 | case M_ST_TAPEM: | |
1651 | printf("tape mark encountered\n"); | |
1652 | break; | |
1653 | case M_ST_RDTRN: | |
1654 | printf("record data truncated\n"); | |
1655 | break; | |
1656 | case M_ST_PLOST: | |
1657 | printf("position lost\n"); | |
1658 | break; | |
1659 | case M_ST_SEX: | |
1660 | printf("serious exception\n"); | |
1661 | break; | |
1662 | case M_ST_LED: | |
1663 | printf("LEOT detected\n"); | |
1664 | break; | |
1665 | } | |
1666 | } | |
e21477ad MK |
1667 | |
1668 | ||
88ac9a6a MK |
1669 | /* |
1670 | * Manage buffers and perform block mode read and write operations. | |
1671 | */ | |
e21477ad | 1672 | |
88ac9a6a MK |
1673 | tmscpstrategy (bp) |
1674 | register struct buf *bp; | |
1675 | { | |
1676 | register struct uba_device *ui; | |
1677 | register struct uba_ctlr *um; | |
1678 | register struct buf *dp; | |
1679 | register int unit = TMSUNIT(bp->b_dev); | |
1680 | int s; | |
e21477ad MK |
1681 | |
1682 | if (unit >= NTMS) | |
88ac9a6a MK |
1683 | { |
1684 | # ifdef DEBUG | |
1685 | printd ("tmscpstrategy: bad unit # %d\n",unit); | |
1686 | # endif | |
1687 | bp->b_flags |= B_ERROR; | |
1688 | iodone(bp); | |
1689 | return; | |
1690 | } | |
1691 | ui = tmsdinfo[unit]; | |
1692 | um = ui->ui_mi; | |
1693 | if (ui == 0 || ui->ui_alive == 0) | |
1694 | { | |
1695 | bp->b_flags |= B_ERROR; | |
1696 | iodone(bp); | |
1697 | return; | |
1698 | } | |
1699 | s = spl5(); | |
1700 | /* | |
1701 | * Link the buffer onto the drive queue | |
1702 | */ | |
1703 | dp = &tmsutab[ui->ui_unit]; | |
1704 | if (dp->b_actf == 0) | |
1705 | dp->b_actf = bp; | |
1706 | else | |
1707 | dp->b_actl->av_forw = bp; | |
1708 | dp->b_actl = bp; | |
1709 | bp->av_forw = 0; | |
1710 | /* | |
1711 | * Link the drive onto the controller queue | |
1712 | */ | |
1713 | if (dp->b_active == 0) | |
1714 | { | |
1715 | dp->b_forw = NULL; | |
1716 | if (um->um_tab.b_actf == NULL) | |
1717 | um->um_tab.b_actf = dp; | |
1718 | else | |
1719 | um->um_tab.b_actl->b_forw = dp; | |
1720 | um->um_tab.b_actl = dp; | |
1721 | dp->b_active = 1; | |
1722 | } | |
1723 | /* | |
1724 | * If the controller is not active, start it. | |
1725 | */ | |
1726 | if (um->um_tab.b_active == 0) | |
1727 | { | |
e21477ad MK |
1728 | # if defined(VAX750) |
1729 | if (cpu == VAX_750 | |
1730 | && tmscpwtab[um->um_ctlr].av_forw == &tmscpwtab[um->um_ctlr]) | |
88ac9a6a MK |
1731 | { |
1732 | if (um->um_ubinfo != 0) | |
e21477ad MK |
1733 | log(TMS_PRI, "tmscpstrategy: ubinfo 0x%x\n", |
1734 | um->um_ubinfo); | |
88ac9a6a | 1735 | else |
e21477ad | 1736 | um->um_ubinfo = uballoc(um->um_ubanum, (caddr_t)0, 0, UBA_NEEDBDP); |
88ac9a6a MK |
1737 | } |
1738 | # endif | |
1739 | # ifdef DEBUG | |
e21477ad | 1740 | printd10("tmscpstrategy: Controller not active, starting it\n"); |
88ac9a6a MK |
1741 | # endif |
1742 | (void) tmscpstart(um); | |
1743 | } | |
1744 | splx(s); | |
1745 | return; | |
1746 | } | |
e21477ad | 1747 | |
88ac9a6a | 1748 | #define DBSIZE 32 |
e21477ad | 1749 | |
88ac9a6a MK |
1750 | #define ca_Rspdsc ca_rspdsc[0] |
1751 | #define ca_Cmddsc ca_rspdsc[1] | |
1752 | #define tmscp_Rsp tmscp_rsp[0] | |
1753 | #define tmscp_Cmd tmscp_cmd[0] | |
e21477ad | 1754 | |
88ac9a6a | 1755 | struct tmscp tmscpd[NTMSCP]; |
e21477ad | 1756 | |
88ac9a6a MK |
1757 | tmscpdump(dev) |
1758 | dev_t dev; | |
1759 | { | |
1760 | struct tmscpdevice *tmscpaddr; | |
1761 | struct tmscp *tmscp_ubaddr; | |
1762 | char *start; | |
1763 | int num, blk, unit; | |
1764 | register struct uba_regs *uba; | |
1765 | register struct uba_device *ui; | |
1766 | register struct tmscp *tmscpp; | |
1767 | register struct pte *io; | |
1768 | register int i; | |
e21477ad | 1769 | |
88ac9a6a | 1770 | unit = minor(dev) & 03; |
e21477ad | 1771 | if (unit >= NTMS) |
88ac9a6a MK |
1772 | return (ENXIO); |
1773 | # define phys(cast, addr) ((cast)((int)addr & 0x7fffffff)) | |
1774 | ui = phys(struct uba_device *, tmsdinfo[unit]); | |
1775 | if (ui->ui_alive == 0) | |
1776 | return (ENXIO); | |
1777 | uba = phys(struct uba_hd *, ui->ui_hd)->uh_physuba; | |
e21477ad | 1778 | ubainit(uba); |
88ac9a6a MK |
1779 | tmscpaddr = (struct tmscpdevice *)ui->ui_physaddr; |
1780 | DELAY(2000000); | |
1781 | tmscpp = phys(struct tmscp *, &tmscpd[ui->ui_ctlr]); | |
e21477ad | 1782 | |
88ac9a6a MK |
1783 | num = btoc(sizeof(struct tmscp)) + 1; |
1784 | io = &uba->uba_map[NUBMREG-num]; | |
1785 | for(i = 0; i<num; i++) | |
1786 | *(int *)io++ = UBAMR_MRV|(btop(tmscpp)+i); | |
e21477ad MK |
1787 | tmscp_ubaddr = (struct tmscp *)(((int)tmscpp & PGOFSET)|((NUBMREG-num)<<9)); |
1788 | ||
88ac9a6a MK |
1789 | tmscpaddr->tmscpip = 0; |
1790 | while ((tmscpaddr->tmscpsa & TMSCP_STEP1) == 0) | |
1791 | if(tmscpaddr->tmscpsa & TMSCP_ERR) return(EFAULT); | |
1792 | tmscpaddr->tmscpsa = TMSCP_ERR; | |
1793 | while ((tmscpaddr->tmscpsa & TMSCP_STEP2) == 0) | |
1794 | if(tmscpaddr->tmscpsa & TMSCP_ERR) return(EFAULT); | |
1795 | tmscpaddr->tmscpsa = (short)&tmscp_ubaddr->tmscp_ca.ca_ringbase; | |
1796 | while ((tmscpaddr->tmscpsa & TMSCP_STEP3) == 0) | |
1797 | if(tmscpaddr->tmscpsa & TMSCP_ERR) return(EFAULT); | |
e21477ad | 1798 | tmscpaddr->tmscpsa = (short)(((int)&tmscp_ubaddr->tmscp_ca.ca_ringbase) >> 16); |
88ac9a6a MK |
1799 | while ((tmscpaddr->tmscpsa & TMSCP_STEP4) == 0) |
1800 | if(tmscpaddr->tmscpsa & TMSCP_ERR) return(EFAULT); | |
1801 | tmscpaddr->tmscpsa = TMSCP_GO; | |
e21477ad MK |
1802 | tmscpp->tmscp_ca.ca_Rspdsc = (long)&tmscp_ubaddr->tmscp_Rsp.mscp_cmdref; |
1803 | tmscpp->tmscp_ca.ca_Cmddsc = (long)&tmscp_ubaddr->tmscp_Cmd.mscp_cmdref; | |
88ac9a6a MK |
1804 | tmscpp->tmscp_Cmd.mscp_header.tmscp_vcid = 1; /* for tape */ |
1805 | tmscpp->tmscp_Cmd.mscp_cntflgs = 0; | |
1806 | tmscpp->tmscp_Cmd.mscp_version = 0; | |
1807 | if (tmscpcmd(M_OP_STCON, tmscpp, tmscpaddr) == 0) { | |
1808 | return(EFAULT); | |
1809 | } | |
1810 | tmscpp->tmscp_Cmd.mscp_unit = ui->ui_slave; | |
1811 | if (tmscpcmd(M_OP_ONLIN, tmscpp, tmscpaddr) == 0) { | |
1812 | return(EFAULT); | |
1813 | } | |
e21477ad | 1814 | |
88ac9a6a MK |
1815 | num = maxfree; |
1816 | start = 0; | |
1817 | while (num > 0) | |
1818 | { | |
1819 | blk = num > DBSIZE ? DBSIZE : num; | |
1820 | io = uba->uba_map; | |
1821 | for (i = 0; i < blk; i++) | |
1822 | *(int *)io++ = (btop(start)+i) | UBAMR_MRV; | |
1823 | *(int *)io = 0; | |
1824 | tmscpp->tmscp_Cmd.mscp_lbn = btop(start); | |
1825 | tmscpp->tmscp_Cmd.mscp_unit = ui->ui_slave; | |
1826 | tmscpp->tmscp_Cmd.mscp_bytecnt = blk*NBPG; | |
1827 | # ifdef MVAX | |
1828 | if( cpu == MVAX_I ) | |
1829 | tmscpp->tmscp_Cmd.mscp_buffer = (long) start; | |
1830 | else | |
1831 | # endif MVAX | |
1832 | tmscpp->tmscp_Cmd.mscp_buffer = 0; | |
1833 | if (tmscpcmd(M_OP_WRITE, tmscpp, tmscpaddr) == 0) | |
1834 | return(EIO); | |
1835 | start += blk*NBPG; | |
1836 | num -= blk; | |
1837 | } | |
1838 | return (0); | |
1839 | } | |
e21477ad MK |
1840 | |
1841 | ||
88ac9a6a MK |
1842 | /* |
1843 | * Perform a standalone tmscp command. This routine is only used by tmscpdump. | |
1844 | */ | |
e21477ad | 1845 | |
88ac9a6a MK |
1846 | tmscpcmd(op, tmscpp, tmscpaddr) |
1847 | int op; | |
1848 | register struct tmscp *tmscpp; | |
1849 | struct tmscpdevice *tmscpaddr; | |
1850 | { | |
1851 | int i; | |
e21477ad | 1852 | |
e21477ad | 1853 | |
88ac9a6a MK |
1854 | tmscpp->tmscp_Cmd.mscp_opcode = op; |
1855 | tmscpp->tmscp_Rsp.mscp_header.tmscp_msglen = mscp_msglen; | |
1856 | tmscpp->tmscp_Cmd.mscp_header.tmscp_msglen = mscp_msglen; | |
1857 | tmscpp->tmscp_ca.ca_Rspdsc |= TMSCP_OWN|TMSCP_INT; | |
1858 | tmscpp->tmscp_ca.ca_Cmddsc |= TMSCP_OWN|TMSCP_INT; | |
1859 | if (tmscpaddr->tmscpsa&TMSCP_ERR) | |
1860 | printf("tmscp fatal error (0%o)\n", tmscpaddr->tmscpsa&0xffff); | |
1861 | i = tmscpaddr->tmscpip; | |
9418508d MK |
1862 | #ifdef lint |
1863 | i = i; | |
1864 | #endif | |
88ac9a6a MK |
1865 | for (;;) |
1866 | { | |
1867 | if (tmscpp->tmscp_ca.ca_cmdint) | |
1868 | tmscpp->tmscp_ca.ca_cmdint = 0; | |
1869 | if (tmscpp->tmscp_ca.ca_rspint) | |
1870 | break; | |
1871 | } | |
1872 | tmscpp->tmscp_ca.ca_rspint = 0; | |
1873 | if (tmscpp->tmscp_Rsp.mscp_opcode != (op|M_OP_END) || | |
1874 | (tmscpp->tmscp_Rsp.mscp_status&M_ST_MASK) != M_ST_SUCC) | |
1875 | { | |
1876 | printf("error: com %d opc 0x%x stat 0x%x\ndump ", op, | |
e21477ad | 1877 | tmscpp->tmscp_Rsp.mscp_opcode, tmscpp->tmscp_Rsp.mscp_status); |
88ac9a6a MK |
1878 | return(0); |
1879 | } | |
1880 | return(1); | |
1881 | } | |
e21477ad | 1882 | |
88ac9a6a MK |
1883 | /* |
1884 | * Catch ioctl commands, and call the "command" routine to do them. | |
1885 | */ | |
e21477ad | 1886 | |
9418508d | 1887 | /* ARGSUSED */ |
88ac9a6a MK |
1888 | tmscpioctl(dev, cmd, data, flag) |
1889 | dev_t dev; | |
1890 | int cmd; | |
1891 | caddr_t data; | |
1892 | int flag; | |
1893 | { | |
88ac9a6a MK |
1894 | register struct buf *bp = &ctmscpbuf[TMSCPCTLR(dev)]; |
1895 | register callcount; /* number of times to call cmd routine */ | |
1896 | register struct uba_device *ui; | |
e21477ad | 1897 | register struct tms_info *tms; |
88ac9a6a | 1898 | int fcount; /* number of files (or records) to space */ |
9418508d MK |
1899 | register struct mtop *mtop; /* mag tape cmd op to perform */ |
1900 | register struct mtget *mtget; /* mag tape struct to get info in */ | |
e21477ad | 1901 | |
88ac9a6a MK |
1902 | /* we depend of the values and order of the TMS ioctl codes here */ |
1903 | static tmsops[] = | |
1904 | {TMS_WRITM,TMS_FSF,TMS_BSF,TMS_FSR,TMS_BSR,TMS_REW,TMS_OFFL,TMS_SENSE, | |
1905 | TMS_CACHE,TMS_NOCACHE}; | |
e21477ad | 1906 | |
88ac9a6a MK |
1907 | switch (cmd) { |
1908 | case MTIOCTOP: /* tape operation */ | |
1909 | mtop = (struct mtop *)data; | |
1910 | switch (mtop->mt_op) { | |
e21477ad | 1911 | |
88ac9a6a MK |
1912 | case MTWEOF: |
1913 | callcount = mtop->mt_count; | |
1914 | fcount = 1; | |
1915 | break; | |
1916 | case MTFSF: case MTBSF: | |
1917 | case MTFSR: case MTBSR: | |
1918 | callcount = 1; | |
1919 | fcount = mtop->mt_count; | |
1920 | break; | |
1921 | case MTREW: case MTOFFL: case MTNOP: | |
1922 | case MTCACHE: case MTNOCACHE: | |
1923 | callcount = 1; | |
1924 | fcount = 1; /* wait for this rewind */ | |
1925 | break; | |
1926 | default: | |
1927 | return (ENXIO); | |
1928 | } /* end switch mtop->mt_op */ | |
e21477ad | 1929 | |
88ac9a6a MK |
1930 | if (callcount <= 0 || fcount <= 0) |
1931 | return (EINVAL); | |
1932 | while (--callcount >= 0) | |
1933 | { | |
1934 | tmscpcommand(dev, tmsops[mtop->mt_op], fcount); | |
1935 | if ((mtop->mt_op == MTFSR || mtop->mt_op == MTBSR) && | |
1936 | bp->b_resid) | |
1937 | return (EIO); | |
1938 | if (bp->b_flags & B_ERROR) /* like hitting BOT */ | |
1939 | break; | |
1940 | } | |
1941 | return (geterror(bp)); | |
e21477ad | 1942 | |
88ac9a6a MK |
1943 | case MTIOCGET: |
1944 | /* | |
1945 | * Return status info associated with the particular UNIT. | |
1946 | */ | |
1947 | ui = tmsdinfo[TMSUNIT(dev)]; | |
e21477ad | 1948 | tms = &tms_info[ui->ui_unit]; |
88ac9a6a MK |
1949 | mtget = (struct mtget *)data; |
1950 | mtget->mt_type = MT_ISTMSCP; | |
e21477ad MK |
1951 | mtget->mt_dsreg = tms->tms_flags << 8; |
1952 | mtget->mt_dsreg |= tms->tms_endcode; | |
1953 | mtget->mt_erreg = tms->tms_status; | |
1954 | mtget->mt_resid = tms->tms_resid; | |
88ac9a6a | 1955 | break; |
e21477ad | 1956 | |
88ac9a6a MK |
1957 | default: |
1958 | return (ENXIO); | |
1959 | } | |
1960 | return (0); | |
1961 | } | |
e21477ad MK |
1962 | |
1963 | ||
88ac9a6a MK |
1964 | /* |
1965 | * Reset (for raw mode use only). | |
1966 | */ | |
e21477ad | 1967 | |
88ac9a6a MK |
1968 | tmscpreset (uban) |
1969 | int uban; | |
1970 | { | |
1971 | register struct uba_ctlr *um; | |
1972 | register struct uba_device *ui; | |
1973 | register struct buf *bp, *dp; | |
1974 | register int unit; | |
1975 | struct buf *nbp; | |
1976 | int d; | |
e21477ad | 1977 | |
88ac9a6a MK |
1978 | for (d = 0; d < NTMSCP; d++) |
1979 | { | |
1980 | if ((um = tmscpminfo[d]) == 0 || um->um_ubanum != uban || | |
1981 | um->um_alive == 0) | |
1982 | continue; | |
1983 | printf(" tmscp%d", d); | |
1984 | um->um_tab.b_active = 0; | |
1985 | um->um_tab.b_actf = um->um_tab.b_actl = 0; | |
1986 | tmscp_softc[d].sc_state = S_IDLE; | |
1987 | tmscp_softc[d].sc_mapped = 0; | |
e21477ad | 1988 | for (unit = 0; unit < NTMS; unit++) |
88ac9a6a MK |
1989 | { |
1990 | if ((ui = tmsdinfo[unit]) == 0) | |
1991 | continue; | |
1992 | if (ui->ui_alive == 0 || ui->ui_mi != um) | |
1993 | continue; | |
1994 | tmsutab[unit].b_active = 0; | |
1995 | tmsutab[unit].b_qsize = 0; | |
1996 | } | |
1997 | for (bp = tmscpwtab[d].av_forw; bp != &tmscpwtab[d]; bp = nbp) | |
1998 | { | |
1999 | nbp = bp->av_forw; | |
2000 | bp->b_ubinfo = 0; | |
2001 | /* | |
2002 | * Link the buffer onto the drive queue | |
2003 | */ | |
2004 | dp = &tmsutab[TMSUNIT(bp->b_dev)]; | |
2005 | if (dp->b_actf == 0) | |
2006 | dp->b_actf = bp; | |
2007 | else | |
2008 | dp->b_actl->av_forw = bp; | |
2009 | dp->b_actl = bp; | |
2010 | bp->av_forw = 0; | |
2011 | /* | |
2012 | * Link the drive onto the controller queue | |
2013 | */ | |
2014 | if (dp->b_active == 0) | |
2015 | { | |
2016 | dp->b_forw = NULL; | |
2017 | if (um->um_tab.b_actf == NULL) | |
2018 | um->um_tab.b_actf = dp; | |
2019 | else | |
2020 | um->um_tab.b_actl->b_forw = dp; | |
2021 | um->um_tab.b_actl = dp; | |
2022 | dp->b_active = 1; | |
2023 | } | |
2024 | } | |
8011f5df | 2025 | (void)tmscpinit(d); |
88ac9a6a MK |
2026 | } |
2027 | } | |
e21477ad MK |
2028 | |
2029 | ||
88ac9a6a MK |
2030 | /* |
2031 | * Process an error log message | |
2032 | * | |
2033 | * Only minimal decoding is done, only "useful" | |
2034 | * information is printed. Eventually should | |
2035 | * send message to an error logger. | |
2036 | */ | |
e21477ad | 2037 | |
88ac9a6a MK |
2038 | tmserror(um, mp) |
2039 | register struct uba_ctlr *um; | |
2040 | register struct mslg *mp; | |
2041 | { | |
2042 | register i; | |
e21477ad | 2043 | |
88ac9a6a MK |
2044 | # ifdef DEBUG |
2045 | printd("tmserror:\n"); | |
2046 | # endif | |
2047 | if(!(mp->mslg_flags & (M_LF_SUCC | M_LF_CONT))) | |
e21477ad | 2048 | log(TMS_PRI, "tmscp%d: %s error, ", um->um_ctlr, |
88ac9a6a | 2049 | mp->mslg_flags & ( M_LF_SUCC | M_LF_CONT ) ? "soft" : "hard"); |
e21477ad | 2050 | |
88ac9a6a | 2051 | switch (mp->mslg_format) { |
e21477ad | 2052 | |
88ac9a6a | 2053 | case M_FM_CNTERR: |
e21477ad | 2054 | log(TMS_PRI, "controller error, event 0%o\n", mp->mslg_event); |
88ac9a6a MK |
2055 | break; |
2056 | case M_FM_BUSADDR: | |
e21477ad | 2057 | log(TMS_PRI, "host memory access error, event 0%o, addr 0%o\n", |
88ac9a6a MK |
2058 | mp->mslg_event, mp->mslg_busaddr); |
2059 | break; | |
2060 | case M_FM_TAPETRN: | |
e21477ad | 2061 | log(TMS_PRI, "tape transfer error, unit %d, grp 0x%x, event 0%o\n", |
88ac9a6a MK |
2062 | mp->mslg_unit, mp->mslg_group, mp->mslg_event); |
2063 | break; | |
2064 | case M_FM_STIERR: | |
e21477ad | 2065 | log(TMS_PRI, "STI error, unit %d, event 0%o\n", |
88ac9a6a | 2066 | mp->mslg_unit, mp->mslg_event); |
e21477ad MK |
2067 | #ifdef notdef |
2068 | /* too painful to do with log() */ | |
88ac9a6a MK |
2069 | for(i = 0; i < 62;i++) |
2070 | mprintf("\t0x%x",mp->mslg_stiunsucc[i] & 0xff); | |
2071 | mprintf("\n"); | |
e21477ad | 2072 | #endif |
88ac9a6a MK |
2073 | break; |
2074 | case M_FM_STIDEL: | |
e21477ad | 2075 | log(TMS_PRI, "STI Drive Error Log, unit %d, event 0%o\n", |
88ac9a6a MK |
2076 | mp->mslg_unit, mp->mslg_event); |
2077 | break; | |
2078 | case M_FM_STIFEL: | |
e21477ad | 2079 | log(TMS_PRI, "STI Formatter Error Log, unit %d, event 0%o\n", |
88ac9a6a MK |
2080 | mp->mslg_unit, mp->mslg_event); |
2081 | break; | |
2082 | default: | |
e21477ad | 2083 | log(TMS_PRI, "unknown error, unit %d, format 0%o, event 0%o\n", |
88ac9a6a MK |
2084 | mp->mslg_unit, mp->mslg_format, mp->mslg_event); |
2085 | } | |
e21477ad | 2086 | |
88ac9a6a MK |
2087 | if (tmscperror) |
2088 | { | |
2089 | register long *p = (long *)mp; | |
e21477ad | 2090 | |
88ac9a6a MK |
2091 | for (i = 0; i < mp->mslg_header.tmscp_msglen; i += sizeof(*p)) |
2092 | printf("%x ", *p++); | |
2093 | printf("\n"); | |
2094 | } | |
2095 | } | |
2096 | #endif |