Commit | Line | Data |
---|---|---|
9447c8e1 | 1 | /* vx.c 1.7 86/01/21 */ |
b8c32975 SL |
2 | |
3 | #include "vx.h" | |
4 | #if NVX > 0 | |
5 | /* | |
336ca318 | 6 | * VIOC-X driver |
b8c32975 | 7 | */ |
4db7c84e | 8 | #ifdef VXPERF |
fd9caac3 | 9 | #define DOSCOPE |
4db7c84e SL |
10 | #endif |
11 | ||
9d915fad | 12 | #include "../tahoe/pte.h" |
b8c32975 | 13 | |
4db7c84e SL |
14 | #include "param.h" |
15 | #include "ioctl.h" | |
16 | #include "tty.h" | |
17 | #include "dir.h" | |
18 | #include "user.h" | |
19 | #include "map.h" | |
20 | #include "buf.h" | |
21 | #include "conf.h" | |
22 | #include "file.h" | |
23 | #include "uio.h" | |
24 | #include "proc.h" | |
25 | #include "vm.h" | |
3155ebd2 | 26 | #include "kernel.h" |
9d915fad SL |
27 | |
28 | #include "../tahoevba/vbavar.h" | |
3155ebd2 | 29 | #include "../tahoevba/vxreg.h" |
9d915fad | 30 | #include "../tahoevba/scope.h" |
b8c32975 SL |
31 | #include "vbsc.h" |
32 | #if NVBSC > 0 | |
e6453f14 SL |
33 | #include "../tahoebsc/bscio.h" |
34 | #include "../tahoebsc/bsc.h" | |
b8c32975 | 35 | #ifdef BSC_DEBUG |
e6453f14 | 36 | #include "../tahoebsc/bscdebug.h" |
b8c32975 SL |
37 | #endif |
38 | ||
3155ebd2 | 39 | char bscport[NVX*16]; |
b8c32975 SL |
40 | #endif |
41 | ||
3155ebd2 SL |
42 | #ifdef VX_DEBUG |
43 | long vxintr4 = 0; | |
44 | #define VXERR4 1 | |
45 | #define VXNOBUF 2 | |
46 | long vxdebug = 0; | |
47 | #define VXVCM 1 | |
48 | #define VXVCC 2 | |
49 | #define VXVCX 4 | |
50 | #include "../tahoesna/snadebug.h" | |
51 | #endif | |
b8c32975 | 52 | |
3155ebd2 SL |
53 | /* |
54 | * Interrupt type bits passed to vinthandl(). | |
55 | */ | |
56 | #define CMDquals 0 /* command completed interrupt */ | |
57 | #define RSPquals 1 /* command response interrupt */ | |
58 | #define UNSquals 2 /* unsolicited interrupt */ | |
b8c32975 | 59 | |
3155ebd2 SL |
60 | struct tty vx_tty[NVX*16]; |
61 | int vxstart(), ttrstrt(); | |
62 | struct vxcmd *vobtain(), *nextcmd(); | |
b8c32975 SL |
63 | |
64 | /* | |
65 | * Driver information for auto-configuration stuff. | |
b8c32975 SL |
66 | */ |
67 | int vxprobe(), vxattach(), vxrint(); | |
3155ebd2 | 68 | struct vba_device *vxinfo[NVX]; |
b8c32975 SL |
69 | long vxstd[] = { 0 }; |
70 | struct vba_driver vxdriver = | |
336ca318 | 71 | { vxprobe, 0, vxattach, 0, vxstd, "vx", vxinfo }; |
b8c32975 | 72 | |
3155ebd2 SL |
73 | struct vx_softc { |
74 | u_char vs_type; /* 0: viox-x/vioc-b, 1: vioc-bop */ | |
75 | u_char vs_bop; /* bop board # for vioc-bop's */ | |
76 | u_char vs_loport; /* low port nbr */ | |
77 | u_char vs_hiport; /* high port nbr */ | |
78 | u_short vs_nbr; /* viocx number */ | |
79 | u_short vs_maxcmd; /* max number of concurrent cmds */ | |
80 | u_short vs_silosiz; /* silo size */ | |
81 | short vs_vers; /* vioc/pvioc version */ | |
fd9caac3 SL |
82 | #define VXV_OLD 0 /* PVIOCX | VIOCX */ |
83 | #define VXV_NEW 1 /* NPVIOCX | NVIOCX */ | |
3155ebd2 SL |
84 | short vs_xmtcnt; /* xmit commands pending */ |
85 | short vs_brkreq; /* send break requests pending */ | |
86 | short vs_active; /* active port bit array or flag */ | |
87 | short vs_state; /* controller state */ | |
fd9caac3 | 88 | #define VXS_READY 0 /* ready for commands */ |
3155ebd2 SL |
89 | #define VXS_RESET 1 /* in process of reseting */ |
90 | caddr_t vs_mricmd; /* most recent issued cmd */ | |
91 | u_int vs_ivec; /* interrupt vector base */ | |
92 | struct vxcmd *vs_avail;/* next available command buffer */ | |
93 | struct vxcmd *vs_build; | |
94 | struct vxcmd vs_lst[NVCXBUFS]; | |
95 | struct vcmds vs_cmds; | |
96 | } vx_softc[NVX]; | |
b8c32975 | 97 | |
336ca318 | 98 | vxprobe(reg, vi) |
b8c32975 | 99 | caddr_t reg; |
336ca318 | 100 | struct vba_device *vi; |
b8c32975 | 101 | { |
336ca318 | 102 | register int br, cvec; /* must be r12, r11 */ |
3155ebd2 SL |
103 | register struct vxdevice *vp = (struct vxdevice *)reg; |
104 | register struct vx_softc *vs; | |
b8c32975 SL |
105 | |
106 | #ifdef lint | |
107 | br = 0; cvec = br; br = cvec; | |
9d915fad | 108 | vackint(0); vunsol(0); vcmdrsp(0); vxfreset(0); |
b8c32975 | 109 | #endif |
9d915fad SL |
110 | if (badaddr((caddr_t)vp, 1)) |
111 | return (0); | |
112 | vp->v_fault = 0; | |
113 | vp->v_vioc = V_BSY; | |
114 | vp->v_hdwre = V_RESET; /* reset interrupt */ | |
b8c32975 | 115 | DELAY(4000000); |
3155ebd2 | 116 | if (vp->v_fault != VXF_READY) |
9d915fad | 117 | return (0); |
3155ebd2 | 118 | vs = &vx_softc[vi->ui_unit]; |
336ca318 SL |
119 | #ifdef notdef |
120 | /* | |
121 | * Align vioc interrupt vector base to 4 vector | |
122 | * boundary and fitting in 8 bits (is this necessary, | |
123 | * wish we had documentation). | |
124 | */ | |
125 | if ((vi->ui_hd->vh_lastiv -= 3) > 0xff) | |
126 | vi->ui_hd->vh_lastiv = 0xff; | |
3155ebd2 | 127 | vs->vs_ivec = vi->ui_hd->vh_lastiv = vi->ui_hd->vh_lastiv &~ 0x3; |
336ca318 | 128 | #else |
3155ebd2 | 129 | vs->vs_ivec = 0x40+vi->ui_unit*4; |
336ca318 | 130 | #endif |
3155ebd2 SL |
131 | br = 0x18, cvec = vs->vs_ivec; /* XXX */ |
132 | return (sizeof (struct vxdevice)); | |
b8c32975 SL |
133 | } |
134 | ||
336ca318 SL |
135 | vxattach(vi) |
136 | register struct vba_device *vi; | |
b8c32975 | 137 | { |
9d915fad | 138 | |
336ca318 | 139 | vxinit(vi->ui_unit, (long)1); |
b8c32975 SL |
140 | } |
141 | ||
142 | /* | |
143 | * Open a VX line. | |
144 | */ | |
9d915fad | 145 | /*ARGSUSED*/ |
b8c32975 | 146 | vxopen(dev, flag) |
3155ebd2 SL |
147 | dev_t dev; |
148 | int flag; | |
b8c32975 SL |
149 | { |
150 | register struct tty *tp; /* pointer to tty struct for port */ | |
3155ebd2 SL |
151 | register struct vx_softc *vs; |
152 | register struct vba_device *vi; | |
153 | int unit, vx, s, error; | |
154 | ||
155 | unit = minor(dev); | |
156 | vx = unit >> 4; | |
157 | if (unit >= NVX*16 || (vi = vxinfo[vx])== 0 || vi->ui_alive == 0) | |
158 | return (ENXIO); | |
159 | tp = &vx_tty[unit]; | |
160 | if (tp->t_state&TS_XCLUDE && u.u_uid != 0) | |
161 | return (EBUSY); | |
162 | vs = &vx_softc[vx]; | |
163 | #ifdef notdef | |
164 | if (unit < vs->vs_loport || vs->vs_hiport < unit) /* ??? */ | |
165 | return (ENXIO); | |
166 | #endif | |
167 | tp->t_addr = (caddr_t)vs; | |
168 | tp->t_oproc = vxstart; | |
169 | tp->t_dev = dev; | |
170 | s = spl8(); | |
171 | tp->t_state |= TS_WOPEN; | |
172 | if ((tp->t_state&TS_ISOPEN) == 0) { | |
173 | ttychars(tp); | |
174 | if (tp->t_ispeed == 0) { | |
175 | tp->t_ispeed = SSPEED; | |
176 | tp->t_ospeed = SSPEED; | |
177 | tp->t_flags |= ODDP|EVENP|ECHO; | |
b8c32975 | 178 | } |
3155ebd2 | 179 | vxparam(dev); |
b8c32975 | 180 | } |
3155ebd2 SL |
181 | if (!vcmodem(dev, VMOD_ON)) |
182 | while ((tp->t_state&TS_CARR_ON) == 0) | |
183 | sleep((caddr_t)&tp->t_canq, TTIPRI); | |
184 | error = (*linesw[tp->t_line].l_open)(dev,tp); | |
185 | splx(s); | |
186 | return (error); | |
b8c32975 SL |
187 | } |
188 | ||
189 | /* | |
190 | * Close a VX line. | |
191 | */ | |
9d915fad | 192 | /*ARGSUSED*/ |
b8c32975 | 193 | vxclose(dev, flag) |
3155ebd2 SL |
194 | dev_t dev; |
195 | int flag; | |
b8c32975 SL |
196 | { |
197 | register struct tty *tp; | |
3155ebd2 | 198 | int unit, s; |
b8c32975 | 199 | |
3155ebd2 SL |
200 | unit = minor(dev); |
201 | tp = &vx_tty[unit]; | |
202 | s = spl8(); | |
b8c32975 | 203 | (*linesw[tp->t_line].l_close)(tp); |
3155ebd2 SL |
204 | if ((tp->t_state & (TS_ISOPEN|TS_HUPCLS)) == (TS_ISOPEN|TS_HUPCLS)) |
205 | if (!vcmodem(dev, VMOD_OFF)) | |
b8c32975 SL |
206 | tp->t_state &= ~TS_CARR_ON; |
207 | /* wait for the last response */ | |
3155ebd2 SL |
208 | while (tp->t_state&TS_FLUSH) |
209 | sleep((caddr_t)&tp->t_state, TTOPRI); | |
210 | ttyclose(tp); | |
211 | splx(s); | |
b8c32975 SL |
212 | } |
213 | ||
214 | /* | |
215 | * Read from a VX line. | |
216 | */ | |
217 | vxread(dev, uio) | |
218 | dev_t dev; | |
219 | struct uio *uio; | |
220 | { | |
3155ebd2 SL |
221 | struct tty *tp = &vx_tty[minor(dev)]; |
222 | ||
223 | return ((*linesw[tp->t_line].l_read)(tp, uio)); | |
b8c32975 SL |
224 | } |
225 | ||
226 | /* | |
227 | * write on a VX line | |
228 | */ | |
229 | vxwrite(dev, uio) | |
230 | dev_t dev; | |
231 | struct uio *uio; | |
232 | { | |
3155ebd2 SL |
233 | register struct tty *tp = &vx_tty[minor(dev)]; |
234 | ||
235 | return ((*linesw[tp->t_line].l_write)(tp, uio)); | |
b8c32975 SL |
236 | } |
237 | ||
238 | /* | |
239 | * VIOCX unsolicited interrupt. | |
240 | */ | |
3155ebd2 SL |
241 | vxrint(vx) |
242 | register vx; | |
b8c32975 | 243 | { |
3155ebd2 SL |
244 | register struct tty *tp, *tp0; |
245 | register struct vxdevice *addr; | |
246 | register struct vx_softc *vs; | |
247 | struct vba_device *vi; | |
248 | register int nc, c; | |
249 | register struct silo { | |
250 | char data, port; | |
251 | } *sp; | |
252 | short *osp; | |
253 | int overrun = 0; | |
254 | ||
255 | vi = vxinfo[vx]; | |
256 | if (vi == 0 || vi->ui_alive == 0) | |
257 | return; | |
258 | addr = (struct vxdevice *)vi->ui_addr; | |
259 | switch (addr->v_uqual&037) { | |
b8c32975 SL |
260 | case 0: |
261 | break; | |
262 | case 2: | |
3155ebd2 SL |
263 | printf("vx%d: vc proc err, ustat %x\n", addr->v_ustat); |
264 | vxstreset(vx); | |
265 | return (0); | |
b8c32975 | 266 | case 3: |
3155ebd2 SL |
267 | vcmintr(vx); |
268 | return (1); | |
b8c32975 | 269 | case 4: |
3155ebd2 | 270 | return (1); |
b8c32975 | 271 | default: |
3155ebd2 SL |
272 | printf("vx%d: vc uqual err, uqual %x\n", addr->v_uqual); |
273 | vxstreset(vx); | |
274 | return (0); | |
275 | } | |
276 | vs = &vx_softc[vx]; | |
277 | if (vs->vs_vers == VXV_NEW) | |
278 | sp = (struct silo *)((caddr_t)addr + *(short *)addr->v_usdata); | |
279 | else | |
280 | sp = (struct silo *)((caddr_t)addr+VX_SILO+(addr->v_usdata[0]<<6)); | |
281 | nc = *(osp = (short *)sp); | |
282 | if (nc == 0) | |
283 | return (1); | |
284 | if (vs->vs_vers == VXV_NEW && nc > vs->vs_silosiz) { | |
285 | printf("vx%d: %d exceeds silo size\n", nc); | |
286 | nc = vs->vs_silosiz; | |
287 | } | |
288 | tp0 = &vx_tty[vx*16]; | |
289 | sp = (struct silo *)(((short *)sp)+1); | |
290 | for (; nc > 0; nc--, sp = (struct silo *)(((short *)sp)+1)) { | |
291 | c = sp->port & 017; | |
292 | if (vs->vs_loport > c || c > vs->vs_hiport) | |
293 | continue; | |
294 | tp = tp0 + c; | |
295 | if( (tp->t_state&TS_ISOPEN) == 0) { | |
b8c32975 SL |
296 | wakeup((caddr_t)&tp->t_rawq); |
297 | continue; | |
298 | } | |
3155ebd2 SL |
299 | c = sp->data; |
300 | if ((sp->port&VX_RO) == VX_RO && !overrun) { | |
301 | printf("vx%d: receiver overrun\n", vi->ui_unit); | |
302 | overrun = 1; | |
303 | continue; | |
304 | } | |
305 | if (sp->port&VX_PE) | |
306 | if ((tp->t_flags&(EVENP|ODDP)) == EVENP || | |
307 | (tp->t_flags&(EVENP|ODDP)) == ODDP) | |
b8c32975 | 308 | continue; |
3155ebd2 SL |
309 | if (sp->port&VX_FE) { |
310 | /* | |
311 | * At framing error (break) generate | |
312 | * a null (in raw mode, for getty), or a | |
313 | * interrupt (in cooked/cbreak mode). | |
314 | */ | |
315 | if (tp->t_flags&RAW) | |
316 | c = 0; | |
317 | else | |
318 | c = tp->t_intrc; | |
b8c32975 SL |
319 | } |
320 | (*linesw[tp->t_line].l_rint)(c, tp); | |
321 | } | |
3155ebd2 SL |
322 | *osp = 0; |
323 | return (1); | |
b8c32975 SL |
324 | } |
325 | ||
326 | /* | |
3155ebd2 | 327 | * Ioctl for VX. |
b8c32975 SL |
328 | */ |
329 | vxioctl(dev, cmd, data, flag) | |
3155ebd2 SL |
330 | dev_t dev; |
331 | caddr_t data; | |
b8c32975 | 332 | { |
3155ebd2 SL |
333 | register struct tty *tp; |
334 | int error; | |
b8c32975 | 335 | |
3155ebd2 | 336 | tp = &vx_tty[minor(dev)]; |
b8c32975 SL |
337 | error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag); |
338 | if (error == 0) | |
3155ebd2 SL |
339 | return (error); |
340 | error = ttioctl(tp, cmd, data, flag); | |
341 | if (error >= 0) { | |
342 | if (cmd == TIOCSETP || cmd == TIOCSETN) | |
b8c32975 | 343 | vxparam(dev); |
3155ebd2 SL |
344 | return (error); |
345 | } | |
346 | return (ENOTTY); | |
b8c32975 SL |
347 | } |
348 | ||
b8c32975 | 349 | vxparam(dev) |
3155ebd2 | 350 | dev_t dev; |
b8c32975 | 351 | { |
3155ebd2 | 352 | |
b8c32975 SL |
353 | vxcparam(dev, 1); |
354 | } | |
355 | ||
356 | /* | |
357 | * Set parameters from open or stty into the VX hardware | |
358 | * registers. | |
359 | */ | |
360 | vxcparam(dev, wait) | |
3155ebd2 SL |
361 | dev_t dev; |
362 | int wait; | |
b8c32975 | 363 | { |
3155ebd2 SL |
364 | register struct tty *tp; |
365 | register struct vx_softc *vs; | |
366 | register struct vxcmd *cp; | |
fd9caac3 | 367 | int s, unit = minor(dev); |
b8c32975 | 368 | |
fd9caac3 | 369 | tp = &vx_tty[unit]; |
3155ebd2 SL |
370 | vs = (struct vx_softc *)tp->t_addr; |
371 | cp = vobtain(vs); | |
b8c32975 | 372 | s = spl8(); |
fd9caac3 SL |
373 | /* |
374 | * Construct ``load parameters'' command block | |
375 | * to setup baud rates, xon-xoff chars, parity, | |
376 | * and stop bits for the specified port. | |
377 | */ | |
378 | cp->cmd = VXC_LPARAX; | |
379 | cp->par[1] = unit & 017; /* port number */ | |
380 | cp->par[2] = (tp->t_flags&RAW) ? 0 : tp->t_startc; | |
381 | cp->par[3] = (tp->t_flags&RAW) ? 0 : tp->t_stopc; | |
3155ebd2 SL |
382 | if (tp->t_flags&(RAW|LITOUT) || |
383 | (tp->t_flags&(EVENP|ODDP)) == (EVENP|ODDP)) { | |
b8c32975 SL |
384 | cp->par[4] = 0xc0; /* 8 bits of data */ |
385 | cp->par[7] = 0; /* no parity */ | |
386 | } else { | |
387 | cp->par[4] = 0x40; /* 7 bits of data */ | |
3155ebd2 | 388 | if ((tp->t_flags&(EVENP|ODDP)) == ODDP) |
b8c32975 | 389 | cp->par[7] = 1; /* odd parity */ |
fd9caac3 | 390 | else if ((tp->t_flags&(EVENP|ODDP)) == EVENP) |
b8c32975 SL |
391 | cp->par[7] = 3; /* even parity */ |
392 | else | |
393 | cp->par[7] = 0; /* no parity */ | |
394 | } | |
fd9caac3 | 395 | cp->par[5] = 0x4; /* 1 stop bit - XXX */ |
b8c32975 | 396 | cp->par[6] = tp->t_ospeed; |
3155ebd2 | 397 | if (vcmd(vs->vs_nbr, (caddr_t)&cp->cmd) && wait) |
9d915fad | 398 | sleep((caddr_t)cp,TTIPRI); |
b8c32975 SL |
399 | splx(s); |
400 | } | |
401 | ||
402 | /* | |
403 | * VIOCX command response interrupt. | |
404 | * For transmission, restart output to any active port. | |
405 | * For all other commands, just clean up. | |
406 | */ | |
3155ebd2 SL |
407 | vxxint(vx, cp) |
408 | register int vx; | |
409 | register struct vxcmd *cp; | |
b8c32975 | 410 | { |
fd9caac3 SL |
411 | register struct vxmit *vp, *pvp; |
412 | register struct tty *tp, *tp0; | |
413 | register struct vx_softc *vs; | |
3155ebd2 | 414 | register struct tty *hp; |
b8c32975 | 415 | |
3155ebd2 SL |
416 | vs = &vx_softc[vx]; |
417 | cp = (struct vxcmd *)((long *)cp-1); | |
b8c32975 | 418 | #if NVBSC > 0 |
3155ebd2 SL |
419 | if (cp->cmd == VXC_MDMCTL1 || cp->cmd == VXC_HUNTMD1 || |
420 | cp->cmd == VXC_LPARAX1) { | |
421 | vrelease(vs, cp); | |
422 | wakeup((caddr_t)cp); | |
b8c32975 SL |
423 | return; |
424 | } | |
425 | #endif | |
3155ebd2 SL |
426 | switch (cp->cmd&0xff00) { |
427 | ||
428 | case VXC_LIDENT: /* initialization complete */ | |
429 | if (vs->vs_state == VXS_RESET) { | |
430 | vxfnreset(vx, cp); | |
431 | vinthandl(vx, ((V_BSY|RSPquals) << 8)|V_INTR); | |
b8c32975 SL |
432 | } |
433 | cp->cmd++; | |
434 | return; | |
3155ebd2 SL |
435 | |
436 | case VXC_XMITDTA: | |
437 | case VXC_XMITIMM: | |
b8c32975 | 438 | break; |
3155ebd2 SL |
439 | |
440 | case VXC_LPARAX: | |
9d915fad | 441 | wakeup((caddr_t)cp); |
3155ebd2 SL |
442 | /* fall thru... */ |
443 | default: /* VXC_MDMCTL or VXC_FDTATOX */ | |
444 | vrelease(vs, cp); | |
445 | if (vs->vs_state == VXS_RESET) | |
446 | vinthandl(vx, ((V_BSY|RSPquals) << 8)|V_INTR); | |
b8c32975 SL |
447 | return; |
448 | } | |
3155ebd2 SL |
449 | tp0 = &vx_tty[vx*16]; |
450 | vp = (struct vxmit *)(cp->par + (cp->cmd & 07)*sizeof (struct vxmit)); | |
451 | for (; vp >= (struct vxmit *)cp->par; vp--) { | |
452 | tp = tp0 + (vp->line & 017); | |
b8c32975 | 453 | #if NVBSC > 0 |
b8c32975 SL |
454 | if (tp->t_line == LDISP) { |
455 | vrelease(xp, cp); | |
3155ebd2 SL |
456 | bsctxd(vp->line & 017); |
457 | return; | |
b8c32975 | 458 | } |
b8c32975 | 459 | #endif |
b8c32975 SL |
460 | pvp = vp; |
461 | tp->t_state &= ~TS_BUSY; | |
3155ebd2 | 462 | if (tp->t_state & TS_FLUSH) { |
b8c32975 | 463 | tp->t_state &= ~TS_FLUSH; |
3155ebd2 SL |
464 | wakeup((caddr_t)&tp->t_state); |
465 | } else | |
b8c32975 SL |
466 | ndflush(&tp->t_outq, vp->bcount+1); |
467 | } | |
3155ebd2 SL |
468 | vs->vs_xmtcnt--; |
469 | vrelease(vs, cp); | |
470 | if (vs->vs_vers == VXV_NEW) { | |
b8c32975 | 471 | vp = pvp; |
3155ebd2 SL |
472 | vs->vs_active |= 1 << ((vp->line & 017) - vs->vs_loport); |
473 | if (vxstart(tp) && (cp = nextcmd(vs)) != NULL) { | |
474 | vs->vs_xmtcnt++; | |
475 | vcmd(vx, (caddr_t)&cp->cmd); | |
476 | return; | |
b8c32975 | 477 | } |
3155ebd2 SL |
478 | vs->vs_active &= ~(1 << ((vp->line & 017) - vs->vs_loport)); |
479 | } else { | |
fd9caac3 | 480 | vs->vs_active = -1; |
3155ebd2 SL |
481 | tp0 = &vx_tty[vx*16 + vs->vs_hiport]; |
482 | for(tp = &vx_tty[vx*16 + vs->vs_loport]; tp <= tp0; tp++) | |
483 | if (vxstart(tp) && (cp = nextcmd(vs)) != NULL) { | |
484 | vs->vs_xmtcnt++; | |
485 | vcmd(vx, (caddr_t)&cp->cmd); | |
486 | } | |
487 | if ((cp = nextcmd(vs)) != NULL) { /* command to send? */ | |
488 | vs->vs_xmtcnt++; | |
489 | vcmd(vx, (caddr_t)&cp->cmd); | |
b8c32975 | 490 | } |
3155ebd2 | 491 | vs->vs_active = 0; |
b8c32975 | 492 | } |
b8c32975 SL |
493 | } |
494 | ||
495 | /* | |
496 | * Force out partial XMIT command after timeout | |
497 | */ | |
3155ebd2 SL |
498 | vxforce(vs) |
499 | register struct vx_softc *vs; | |
b8c32975 | 500 | { |
3155ebd2 SL |
501 | register struct vxcmd *cp; |
502 | int s; | |
b8c32975 SL |
503 | |
504 | s = spl8(); | |
3155ebd2 SL |
505 | if ((cp = nextcmd(vs)) != NULL) { |
506 | vs->vs_xmtcnt++; | |
507 | vcmd(vs->vs_nbr, (caddr_t)&cp->cmd); | |
b8c32975 SL |
508 | } |
509 | splx(s); | |
510 | } | |
511 | ||
512 | /* | |
513 | * Start (restart) transmission on the given VX line. | |
514 | */ | |
515 | vxstart(tp) | |
3155ebd2 | 516 | register struct tty *tp; |
b8c32975 | 517 | { |
9d915fad | 518 | register short n; |
fd9caac3 | 519 | register struct vx_softc *vs; |
b8c32975 | 520 | register full = 0; |
fd9caac3 | 521 | int s, port; |
b8c32975 SL |
522 | |
523 | s = spl8(); | |
524 | port = minor(tp->t_dev) & 017; | |
3155ebd2 SL |
525 | vs = (struct vx_softc *)tp->t_addr; |
526 | if ((tp->t_state&(TS_TIMEOUT|TS_BUSY|TS_TTSTOP)) == 0) { | |
527 | if (tp->t_outq.c_cc <= TTLOWAT(tp)) { | |
b8c32975 SL |
528 | if (tp->t_state&TS_ASLEEP) { |
529 | tp->t_state &= ~TS_ASLEEP; | |
530 | wakeup((caddr_t)&tp->t_outq); | |
531 | } | |
532 | if (tp->t_wsel) { | |
533 | selwakeup(tp->t_wsel, tp->t_state & TS_WCOLL); | |
534 | tp->t_wsel = 0; | |
535 | tp->t_state &= ~TS_WCOLL; | |
536 | } | |
537 | } | |
3155ebd2 | 538 | if (tp->t_outq.c_cc == 0) { |
b8c32975 | 539 | splx(s); |
3155ebd2 | 540 | return (0); |
b8c32975 | 541 | } |
4db7c84e | 542 | scope_out(3); |
3155ebd2 | 543 | if ((tp->t_flags&(RAW|LITOUT)) == 0) |
b8c32975 | 544 | full = 0200; |
3155ebd2 SL |
545 | if ((n = ndqb(&tp->t_outq, full)) == 0) { |
546 | if (full) { | |
9d915fad | 547 | n = getc(&tp->t_outq); |
3155ebd2 | 548 | timeout(ttrstrt, (caddr_t)tp, (n&0177)+6); |
b8c32975 SL |
549 | tp->t_state |= TS_TIMEOUT; |
550 | full = 0; | |
551 | } | |
552 | } else { | |
fd9caac3 SL |
553 | char *cp = (char *)tp->t_outq.c_cf; |
554 | ||
b8c32975 | 555 | tp->t_state |= TS_BUSY; |
fd9caac3 SL |
556 | full = vsetq(vs, port, cp, n); |
557 | /* | |
558 | * If the port is not currently active, try to | |
559 | * send the data. We send it immediately if the | |
560 | * command buffer is full, or if we've nothing | |
561 | * currently outstanding. If we don't send it, | |
562 | * set a timeout to force the data to be sent soon. | |
563 | */ | |
564 | if ((vs->vs_active & (1 << (port-vs->vs_loport))) == 0) | |
3155ebd2 | 565 | if (full || vs->vs_xmtcnt == 0) { |
fd9caac3 | 566 | cp = (char *)&nextcmd(vs)->cmd; |
3155ebd2 | 567 | vs->vs_xmtcnt++; |
fd9caac3 | 568 | vcmd(vs->vs_nbr, cp); |
b8c32975 | 569 | } else |
3155ebd2 | 570 | timeout(vxforce, (caddr_t)vs, 3); |
b8c32975 SL |
571 | } |
572 | } | |
573 | splx(s); | |
3155ebd2 | 574 | return (full); /* indicate if max commands or not */ |
b8c32975 SL |
575 | } |
576 | ||
577 | /* | |
578 | * Stop output on a line. | |
579 | */ | |
580 | vxstop(tp) | |
3155ebd2 | 581 | register struct tty *tp; |
b8c32975 | 582 | { |
3155ebd2 | 583 | int s; |
b8c32975 SL |
584 | |
585 | s = spl8(); | |
3155ebd2 SL |
586 | if (tp->t_state&TS_BUSY) |
587 | if ((tp->t_state&TS_TTSTOP) == 0) | |
b8c32975 | 588 | tp->t_state |= TS_FLUSH; |
b8c32975 SL |
589 | splx(s); |
590 | } | |
591 | ||
3155ebd2 | 592 | static int vxbbno = -1; |
b8c32975 SL |
593 | /* |
594 | * VIOCX Initialization. Makes free lists of command buffers. | |
595 | * Resets all viocx's. Issues a LIDENT command to each | |
fd9caac3 | 596 | * viocx to establish interrupt vectors and logical port numbers. |
b8c32975 | 597 | */ |
3155ebd2 SL |
598 | vxinit(vx, wait) |
599 | register int vx; | |
600 | int wait; | |
601 | { | |
fd9caac3 SL |
602 | register struct vx_softc *vs; |
603 | register struct vxdevice *addr; | |
604 | register struct vxcmd *cp; | |
3155ebd2 SL |
605 | register char *resp; |
606 | register int j; | |
b8c32975 | 607 | char type; |
b8c32975 | 608 | |
3155ebd2 | 609 | vs = &vx_softc[vx]; |
fd9caac3 SL |
610 | vs->vs_type = 0; /* vioc-x by default */ |
611 | addr = (struct vxdevice *)((struct vba_device *)vxinfo[vx])->ui_addr; | |
3155ebd2 SL |
612 | type = addr->v_ident; |
613 | vs->vs_vers = (type&VXT_NEW) ? VXV_NEW : VXV_OLD; | |
614 | if (vs->vs_vers == VXV_NEW) | |
615 | vs->vs_silosiz = addr->v_maxsilo; | |
616 | switch (type) { | |
617 | ||
618 | case VXT_VIOCX: | |
619 | case VXT_VIOCX|VXT_NEW: | |
620 | /* set dcd for printer ports */ | |
fd9caac3 | 621 | for (j = 0; j < 16;j++) |
3155ebd2 SL |
622 | if (addr->v_portyp[j] == 4) |
623 | addr->v_dcd |= 1 << j; | |
624 | break; | |
b8c32975 | 625 | |
3155ebd2 SL |
626 | case VXT_PVIOCX: |
627 | case VXT_PVIOCX|VXT_NEW: | |
628 | break; | |
b8c32975 | 629 | #if NVBSC > 0 |
3155ebd2 SL |
630 | case VX_VIOCB: /* old f/w bisync */ |
631 | case VX_VIOCB|VXT_NEW: { /* new f/w bisync */ | |
fd9caac3 | 632 | register struct bsc *bp; |
3155ebd2 SL |
633 | extern struct bsc bsc[]; |
634 | ||
635 | printf("%X: %x%x %s VIOC-B, ", (long)addr, (int)addr->v_ident, | |
636 | (int)addr->v_fault, vs->vs_vers == VXV_OLD ? "old" : "16k"); | |
637 | for (bp = &bsc[0]; bp <= &bsc[NBSC]; bp++) | |
638 | bp->b_devregs = (caddr_t)vs; | |
639 | printf("%d BSC Ports initialized.\n", NBSC); | |
640 | break; | |
641 | if (vs->vs_vers == VXV_NEW && CBSIZE > addr->v_maxxmt) | |
642 | printf("vxinit: Warning CBSIZE > maxxmt\n"); | |
643 | break; | |
b8c32975 | 644 | #endif |
3155ebd2 SL |
645 | case VXT_VIOCBOP: /* VIOC-BOP */ |
646 | vs->vs_type = 1; | |
647 | vs->vs_bop = ++vxbbno; | |
648 | printf("VIOC-BOP no. %d at %x\n", vs->vs_bop, addr); | |
b8c32975 | 649 | |
fd9caac3 | 650 | default: |
3155ebd2 SL |
651 | printf("vx%d: unknown type %x\n", vx, type); |
652 | return; | |
653 | } | |
654 | vs->vs_nbr = -1; | |
fd9caac3 SL |
655 | vs->vs_maxcmd = (vs->vs_vers == VXV_NEW) ? 24 : 4; |
656 | /* | |
657 | * Initialize all cmd buffers by linking them | |
658 | * into a free list. | |
659 | */ | |
3155ebd2 | 660 | for (j = 0; j < NVCXBUFS; j++) { |
fd9caac3 SL |
661 | cp = &vs->vs_lst[j]; |
662 | cp->c_fwd = &vs->vs_lst[j+1]; | |
b8c32975 | 663 | } |
3155ebd2 | 664 | vs->vs_avail = &vs->vs_lst[0]; /* set idx to 1st free buf */ |
b8c32975 SL |
665 | cp->c_fwd = (struct vxcmd *)0; /* mark last buf in free list */ |
666 | ||
fd9caac3 SL |
667 | /* |
668 | * Establish the interrupt vectors and define the port numbers. | |
669 | */ | |
670 | cp = vobtain(vs); | |
671 | cp->cmd = VXC_LIDENT; | |
3155ebd2 | 672 | cp->par[0] = vs->vs_ivec; /* ack vector */ |
336ca318 SL |
673 | cp->par[1] = cp->par[0]+1; /* cmd resp vector */ |
674 | cp->par[3] = cp->par[0]+2; /* unsol intr vector */ | |
3155ebd2 SL |
675 | cp->par[4] = 15; /* max ports, no longer used */ |
676 | cp->par[5] = 0; /* set 1st port number */ | |
fd9caac3 | 677 | vcmd(vx, (caddr_t)&cp->cmd); |
3155ebd2 SL |
678 | if (!wait) |
679 | return; | |
680 | for (j = 0; cp->cmd == VXC_LIDENT && j < 4000000; j++) | |
336ca318 SL |
681 | ; |
682 | if (j >= 4000000) | |
3155ebd2 | 683 | printf("vx%d: didn't respond to LIDENT\n", vx); |
b8c32975 SL |
684 | |
685 | /* calculate address of response buffer */ | |
3155ebd2 | 686 | resp = (char *)addr + (addr->v_rspoff&0x3fff); |
fd9caac3 SL |
687 | if (resp[0] != 0 && (resp[0]&0177) != 3) { |
688 | vrelease(vs, cp); /* init failed */ | |
3155ebd2 | 689 | return; |
b8c32975 | 690 | } |
3155ebd2 SL |
691 | vs->vs_loport = cp->par[5]; |
692 | vs->vs_hiport = cp->par[7]; | |
693 | vrelease(vs, cp); | |
fd9caac3 | 694 | vs->vs_nbr = vx; /* assign board number */ |
b8c32975 SL |
695 | } |
696 | ||
697 | /* | |
698 | * Obtain a command buffer | |
699 | */ | |
3155ebd2 SL |
700 | struct vxcmd * |
701 | vobtain(vs) | |
fd9caac3 | 702 | register struct vx_softc *vs; |
b8c32975 | 703 | { |
fd9caac3 | 704 | register struct vxcmd *p; |
3155ebd2 | 705 | int s; |
b8c32975 SL |
706 | |
707 | s = spl8(); | |
3155ebd2 SL |
708 | p = vs->vs_avail; |
709 | if (p == (struct vxcmd *)0) { | |
b8c32975 | 710 | #ifdef VX_DEBUG |
3155ebd2 SL |
711 | if (vxintr4&VXNOBUF) |
712 | vxintr4 &= ~VXNOBUF; | |
b8c32975 | 713 | #endif |
3155ebd2 SL |
714 | printf("vx%d: no buffers\n", vs - vx_softc); |
715 | vxstreset(vs - vx_softc); | |
b8c32975 | 716 | splx(s); |
3155ebd2 | 717 | return (vobtain(vs)); |
b8c32975 | 718 | } |
3155ebd2 | 719 | vs->vs_avail = vs->vs_avail->c_fwd; |
b8c32975 | 720 | splx(s); |
3155ebd2 | 721 | return ((struct vxcmd *)p); |
b8c32975 SL |
722 | } |
723 | ||
724 | /* | |
725 | * Release a command buffer | |
726 | */ | |
3155ebd2 | 727 | vrelease(vs, cp) |
fd9caac3 SL |
728 | register struct vx_softc *vs; |
729 | register struct vxcmd *cp; | |
b8c32975 | 730 | { |
3155ebd2 | 731 | int s; |
b8c32975 SL |
732 | |
733 | #ifdef VX_DEBUG | |
3155ebd2 SL |
734 | if (vxintr4&VXNOBUF) |
735 | return; | |
b8c32975 SL |
736 | #endif |
737 | s = spl8(); | |
3155ebd2 SL |
738 | cp->c_fwd = vs->vs_avail; |
739 | vs->vs_avail = cp; | |
b8c32975 SL |
740 | splx(s); |
741 | } | |
742 | ||
3155ebd2 SL |
743 | struct vxcmd * |
744 | nextcmd(vs) | |
fd9caac3 | 745 | register struct vx_softc *vs; |
b8c32975 | 746 | { |
fd9caac3 | 747 | register struct vxcmd *cp; |
3155ebd2 | 748 | int s; |
b8c32975 SL |
749 | |
750 | s = spl8(); | |
3155ebd2 SL |
751 | cp = vs->vs_build; |
752 | vs->vs_build = (struct vxcmd *)0; | |
b8c32975 | 753 | splx(s); |
3155ebd2 | 754 | return (cp); |
b8c32975 SL |
755 | } |
756 | ||
757 | /* | |
fd9caac3 SL |
758 | * Assemble transmits into a multiple command; |
759 | * up to 8 transmits to 8 lines can be assembled together. | |
b8c32975 | 760 | */ |
fd9caac3 SL |
761 | vsetq(vs, line, addr, n) |
762 | register struct vx_softc *vs; | |
3155ebd2 | 763 | caddr_t addr; |
b8c32975 | 764 | { |
fd9caac3 SL |
765 | register struct vxcmd *cp; |
766 | register struct vxmit *mp; | |
b8c32975 | 767 | |
fd9caac3 SL |
768 | /* |
769 | * Grab a new command buffer or append | |
770 | * to the current one being built. | |
771 | */ | |
3155ebd2 SL |
772 | cp = vs->vs_build; |
773 | if (cp == (struct vxcmd *)0) { | |
774 | cp = vobtain(vs); | |
775 | vs->vs_build = cp; | |
776 | cp->cmd = VXC_XMITDTA; | |
b8c32975 | 777 | } else { |
3155ebd2 SL |
778 | if ((cp->cmd & 07) == 07) { |
779 | printf("vx%d: setq overflow\n", vs-vx_softc); | |
780 | vxstreset(vs->vs_nbr); | |
781 | return (0); | |
b8c32975 SL |
782 | } |
783 | cp->cmd++; | |
784 | } | |
fd9caac3 SL |
785 | /* |
786 | * Select the next vxmit buffer and copy the | |
787 | * characters into the buffer (if there's room | |
788 | * and the device supports ``immediate mode'', | |
789 | * or store an indirect pointer to the data. | |
790 | */ | |
3155ebd2 | 791 | mp = (struct vxmit *)(cp->par + (cp->cmd & 07)*sizeof (struct vxmit)); |
9d915fad | 792 | mp->bcount = n-1; |
fd9caac3 SL |
793 | mp->line = line; |
794 | if (vs->vs_vers == VXV_NEW && n <= sizeof (mp->ostream)) { | |
3155ebd2 | 795 | cp->cmd = VXC_XMITIMM; |
fd9caac3 | 796 | bcopy(addr, mp->ostream, n); |
b8c32975 | 797 | } else { |
fd9caac3 | 798 | /* get system address of clist block */ |
9d915fad | 799 | addr = (caddr_t)vtoph((struct proc *)0, (unsigned)addr); |
fd9caac3 | 800 | bcopy(&addr, mp->ostream, sizeof (addr)); |
b8c32975 | 801 | } |
3155ebd2 SL |
802 | return (vs->vs_vers == VXV_NEW ? 1 : (cp->cmd&07) == 7); |
803 | } | |
804 | ||
805 | /* | |
806 | * Write a command out to the VIOC | |
807 | */ | |
808 | vcmd(vx, cmdad) | |
809 | register int vx; | |
810 | register caddr_t cmdad; | |
811 | { | |
fd9caac3 | 812 | register struct vcmds *cp; |
3155ebd2 SL |
813 | register struct vx_softc *vs; |
814 | int s; | |
815 | ||
816 | s = spl8(); | |
817 | vs = &vx_softc[vx]; | |
fd9caac3 SL |
818 | /* |
819 | * When the vioc is resetting, don't process | |
820 | * anything other than VXC_LIDENT commands. | |
821 | */ | |
3155ebd2 | 822 | if (vs->vs_state == VXS_RESET && cmdad != NULL) { |
fd9caac3 | 823 | struct vxcmd *vcp = (struct vxcmd *)(cmdad-sizeof (vcp->c_fwd)); |
3155ebd2 | 824 | |
fd9caac3 SL |
825 | if (vcp->cmd != VXC_LIDENT) { |
826 | vrelease(vs, vcp); | |
3155ebd2 SL |
827 | return (0); |
828 | } | |
829 | } | |
830 | cp = &vs->vs_cmds; | |
831 | if (cmdad != (caddr_t)0) { | |
832 | cp->cmdbuf[cp->v_fill] = cmdad; | |
833 | if (++cp->v_fill >= VC_CMDBUFL) | |
834 | cp->v_fill = 0; | |
835 | if (cp->v_fill == cp->v_empty) { | |
836 | printf("vx%d: cmd q overflow\n", vx); | |
837 | vxstreset(vx); | |
838 | splx(s); | |
839 | return (0); | |
840 | } | |
841 | cp->v_cmdsem++; | |
842 | } | |
843 | if (cp->v_cmdsem && cp->v_curcnt < vs->vs_maxcmd) { | |
844 | cp->v_cmdsem--; | |
845 | cp->v_curcnt++; | |
846 | vinthandl(vx, ((V_BSY|CMDquals) << 8)|V_INTR); | |
847 | } | |
848 | splx(s); | |
849 | return (1); | |
850 | } | |
851 | ||
852 | /* | |
853 | * VIOC acknowledge interrupt. The VIOC has received the new | |
854 | * command. If no errors, the new command becomes one of 16 (max) | |
855 | * current commands being executed. | |
856 | */ | |
857 | vackint(vx) | |
858 | register vx; | |
859 | { | |
fd9caac3 SL |
860 | register struct vxdevice *vp; |
861 | register struct vcmds *cp; | |
3155ebd2 SL |
862 | struct vx_softc *vs; |
863 | int s; | |
864 | ||
865 | scope_out(5); | |
866 | vs = &vx_softc[vx]; | |
867 | if (vs->vs_type) { /* Its a BOP */ | |
868 | #ifdef SNA_DEBUG | |
869 | extern vbrall(); | |
870 | ||
871 | if (snadebug & SVIOC) | |
872 | printf("vx%d: vack interrupt from BOP\n", vx); | |
873 | vbrall(vx); /* Int. from BOP, port 0 */ | |
874 | #endif | |
875 | return; | |
876 | } | |
877 | s = spl8(); | |
878 | vp = (struct vxdevice *)((struct vba_device *)vxinfo[vx])->ui_addr; | |
879 | cp = &vs->vs_cmds; | |
fd9caac3 | 880 | if (vp->v_vcid&V_ERR) { |
3155ebd2 SL |
881 | register char *resp; |
882 | register i; | |
fd9caac3 | 883 | |
3155ebd2 SL |
884 | printf("vx%d INTR ERR type %x v_dcd %x\n", vx, |
885 | vp->v_vcid & 07, vp->v_dcd & 0xff); | |
3155ebd2 SL |
886 | resp = (char *)vs->vs_mricmd; |
887 | for (i = 0; i < 16; i++) | |
888 | printf("%x ", resp[i]&0xff); | |
889 | printf("\n"); | |
890 | splx(s); | |
891 | vxstreset(vx); | |
892 | return; | |
893 | } | |
894 | if ((vp->v_hdwre&017) == CMDquals) { | |
895 | #ifdef VX_DEBUG | |
896 | if (vxintr4 & VXERR4) { /* causes VIOC INTR ERR 4 */ | |
fd9caac3 | 897 | struct vxcmd *cp1, *cp0; |
3155ebd2 | 898 | |
fd9caac3 SL |
899 | cp0 = (struct vxcmd *) |
900 | ((caddr_t)cp->cmdbuf[cp->v_empty]-sizeof (cp0->c_fwd)); | |
3155ebd2 SL |
901 | if (cp0->cmd == VXC_XMITDTA || cp0->cmd == VXC_XMITIMM) { |
902 | cp1 = vobtain(vs); | |
903 | *cp1 = *cp0; | |
904 | vxintr4 &= ~VXERR4; | |
905 | (void) vcmd(vx, &cp1->cmd); | |
906 | } | |
907 | } | |
908 | #endif | |
909 | cp->v_curcmd[vp->v_vcid & VCMDLEN-1] = cp->cmdbuf[cp->v_empty]; | |
910 | if (++cp->v_empty >= VC_CMDBUFL) | |
911 | cp->v_empty = 0; | |
912 | } | |
913 | if (++cp->v_itrempt >= VC_IQLEN) | |
914 | cp->v_itrempt = 0; | |
915 | vintempt(vx); | |
916 | splx(s); | |
917 | (void) vcmd(vx, (caddr_t)0); /* queue next cmd, if any */ | |
918 | } | |
919 | ||
920 | /* | |
921 | * Command Response interrupt. The Vioc has completed | |
922 | * a command. The command may now be returned to | |
923 | * the appropriate device driver. | |
924 | */ | |
925 | vcmdrsp(vx) | |
926 | register vx; | |
927 | { | |
fd9caac3 SL |
928 | register struct vxdevice *vp; |
929 | register struct vcmds *cp; | |
3155ebd2 SL |
930 | register caddr_t cmd; |
931 | register struct vx_softc *vs; | |
932 | register char *resp; | |
933 | register k; | |
934 | register int s; | |
935 | ||
936 | scope_out(6); | |
937 | vs = &vx_softc[vx]; | |
938 | if (vs->vs_type) { /* Its a BOP */ | |
939 | printf("vx%d: vcmdrsp interrupt\n", vx); | |
940 | return; | |
941 | } | |
942 | s = spl8(); | |
943 | vp = (struct vxdevice *)((struct vba_device *)vxinfo[vx])->ui_addr; | |
944 | cp = &vs->vs_cmds; | |
945 | resp = (char *)vp + (vp->v_rspoff&0x7fff); | |
946 | if (((k = resp[1])&V_UNBSY) == 0) { | |
947 | printf("vx%d: cmdresp debug\n", vx); | |
948 | splx(s); | |
949 | vxstreset(vx); | |
950 | return; | |
951 | } | |
952 | k &= VCMDLEN-1; | |
953 | cmd = cp->v_curcmd[k]; | |
954 | cp->v_curcmd[k] = (caddr_t)0; | |
955 | cp->v_curcnt--; | |
956 | k = *((short *)&resp[4]); /* cmd operation code */ | |
957 | if ((k&0xff00) == VXC_LIDENT) /* want hiport number */ | |
958 | for (k = 0; k < VRESPLEN; k++) | |
959 | cmd[k] = resp[k+4]; | |
960 | resp[1] = 0; | |
961 | vxxint(vx, (struct vxcmd *)cmd); | |
962 | if (vs->vs_state == VXS_READY) | |
963 | vinthandl(vx, ((V_BSY|RSPquals) << 8)|V_INTR); | |
964 | splx(s); | |
965 | } | |
966 | ||
967 | /* | |
968 | * Unsolicited interrupt. | |
969 | */ | |
970 | vunsol(vx) | |
971 | register vx; | |
972 | { | |
fd9caac3 | 973 | register struct vxdevice *vp; |
3155ebd2 SL |
974 | struct vx_softc *vs; |
975 | int s; | |
976 | ||
977 | scope_out(1); | |
978 | vs = &vx_softc[vx]; | |
979 | if (vs->vs_type) { /* Its a BOP */ | |
980 | printf("vx%d: vunsol from BOP\n", vx); | |
981 | return; | |
982 | } | |
983 | s = spl8(); | |
984 | vp = (struct vxdevice *)((struct vba_device *)vxinfo[vx])->ui_addr; | |
985 | if (vp->v_uqual&V_UNBSY) { | |
986 | vxrint(vx); | |
987 | vinthandl(vx, ((V_BSY|UNSquals) << 8)|V_INTR); | |
988 | #ifdef notdef | |
989 | } else { | |
990 | printf("vx%d: unsolicited interrupt error\n", vx); | |
991 | splx(s); | |
992 | vxstreset(vx); | |
993 | #endif | |
994 | } | |
995 | splx(s); | |
996 | } | |
997 | ||
998 | /* | |
fd9caac3 | 999 | * Enqueue an interrupt. |
3155ebd2 SL |
1000 | */ |
1001 | vinthandl(vx, item) | |
1002 | register int vx; | |
1003 | register item; | |
1004 | { | |
1005 | register struct vcmds *cp; | |
1006 | int empty; | |
1007 | ||
1008 | cp = &vx_softc[vx].vs_cmds; | |
fd9caac3 | 1009 | empty = (cp->v_itrfill == cp->v_itrempt); |
3155ebd2 SL |
1010 | cp->v_itrqueu[cp->v_itrfill] = item; |
1011 | if (++cp->v_itrfill >= VC_IQLEN) | |
1012 | cp->v_itrfill = 0; | |
1013 | if (cp->v_itrfill == cp->v_itrempt) { | |
1014 | printf("vx%d: interrupt q overflow\n", vx); | |
1015 | vxstreset(vx); | |
1016 | } else if (empty) | |
1017 | vintempt(vx); | |
1018 | } | |
1019 | ||
1020 | vintempt(vx) | |
1021 | register int vx; | |
1022 | { | |
1023 | register struct vcmds *cp; | |
1024 | register struct vxdevice *vp; | |
1025 | register short item; | |
1026 | register short *intr; | |
1027 | ||
1028 | vp = (struct vxdevice *)((struct vba_device *)vxinfo[vx])->ui_addr; | |
1029 | if (vp->v_vioc&V_BSY) | |
1030 | return; | |
1031 | cp = &vx_softc[vx].vs_cmds; | |
1032 | if (cp->v_itrempt == cp->v_itrfill) | |
1033 | return; | |
1034 | item = cp->v_itrqueu[cp->v_itrempt]; | |
1035 | intr = (short *)&vp->v_vioc; | |
1036 | switch ((item >> 8)&03) { | |
1037 | ||
1038 | case CMDquals: { /* command */ | |
1039 | int phys; | |
1040 | ||
1041 | if (cp->v_empty == cp->v_fill || vp->v_vcbsy&V_BSY) | |
1042 | break; | |
1043 | vx_softc[vx].vs_mricmd = (caddr_t)cp->cmdbuf[cp->v_empty]; | |
1044 | phys = vtoph((struct proc *)0, | |
1045 | (unsigned)cp->cmdbuf[cp->v_empty]); | |
1046 | vp->v_vcp[0] = ((short *)&phys)[0]; | |
1047 | vp->v_vcp[1] = ((short *)&phys)[1]; | |
1048 | vp->v_vcbsy = V_BSY; | |
1049 | *intr = item; | |
1050 | scope_out(4); | |
1051 | break; | |
1052 | } | |
1053 | ||
1054 | case RSPquals: /* command response */ | |
1055 | *intr = item; | |
1056 | scope_out(7); | |
1057 | break; | |
1058 | ||
1059 | case UNSquals: /* unsolicited interrupt */ | |
1060 | vp->v_uqual = 0; | |
1061 | *intr = item; | |
1062 | scope_out(2); | |
1063 | break; | |
1064 | } | |
1065 | } | |
1066 | ||
1067 | /* | |
1068 | * Start a reset on a vioc after error (hopefully) | |
1069 | */ | |
1070 | vxstreset(vx) | |
1071 | register vx; | |
1072 | { | |
1073 | register struct vx_softc *vs; | |
fd9caac3 | 1074 | register struct vxdevice *vp; |
3155ebd2 SL |
1075 | register struct vxcmd *cp; |
1076 | register int j; | |
1077 | extern int vxinreset(); | |
1078 | int s; | |
1079 | ||
1080 | s = spl8() ; | |
1081 | vs = &vx_softc[vx]; | |
1082 | if (vs->vs_state == VXS_RESET) { /* avoid recursion */ | |
1083 | splx(s); | |
1084 | return; | |
1085 | } | |
1086 | vp = (struct vxdevice *)((struct vba_device *)vxinfo[vx])->ui_addr; | |
1087 | /* | |
1088 | * Zero out the vioc structures, mark the vioc as being | |
1089 | * reset, reinitialize the free command list, reset the vioc | |
1090 | * and start a timer to check on the progress of the reset. | |
1091 | */ | |
1092 | bzero((caddr_t)vs, (unsigned)sizeof (*vs)); | |
1093 | ||
1094 | /* | |
1095 | * Setting VXS_RESET prevents others from issuing | |
1096 | * commands while allowing currently queued commands to | |
1097 | * be passed to the VIOC. | |
1098 | */ | |
1099 | vs->vs_state = VXS_RESET; | |
1100 | /* init all cmd buffers */ | |
1101 | for (j = 0; j < NVCXBUFS; j++) { | |
fd9caac3 SL |
1102 | cp = &vs->vs_lst[j]; |
1103 | cp->c_fwd = &vs->vs_lst[j+1]; | |
3155ebd2 | 1104 | } |
fd9caac3 SL |
1105 | vs->vs_avail = &vs->vs_lst[0]; |
1106 | cp->c_fwd = (struct vxcmd *)0; | |
3155ebd2 SL |
1107 | printf("vx%d: reset...", vx); |
1108 | vp->v_fault = 0; | |
1109 | vp->v_vioc = V_BSY; | |
fd9caac3 | 1110 | vp->v_hdwre = V_RESET; /* generate reset interrupt */ |
3155ebd2 SL |
1111 | timeout(vxinreset, (caddr_t)vx, hz*5); |
1112 | splx(s); | |
1113 | } | |
1114 | ||
1115 | /* continue processing a reset on a vioc after an error (hopefully) */ | |
1116 | vxinreset(vx) | |
1117 | int vx; | |
1118 | { | |
fd9caac3 | 1119 | register struct vxdevice *vp; |
3155ebd2 SL |
1120 | int s = spl8(); |
1121 | ||
1122 | vp = (struct vxdevice *)((struct vba_device *)vxinfo[vx])->ui_addr; | |
1123 | /* | |
1124 | * See if the vioc has reset. | |
1125 | */ | |
1126 | if (vp->v_fault != VXF_READY) { | |
1127 | printf("failed\n"); | |
1128 | splx(s); | |
1129 | return; | |
1130 | } | |
1131 | /* | |
1132 | * Send a LIDENT to the vioc and mess with carrier flags | |
1133 | * on parallel printer ports. | |
1134 | */ | |
1135 | vxinit(vx, (long)0); | |
1136 | splx(s); | |
1137 | } | |
1138 | ||
1139 | /* | |
fd9caac3 SL |
1140 | * Finish the reset on the vioc after an error (hopefully). |
1141 | * | |
3155ebd2 SL |
1142 | * Restore modem control, parameters and restart output. |
1143 | * Since the vioc can handle no more then 24 commands at a time | |
1144 | * and we could generate as many as 48 commands, we must do this in | |
1145 | * phases, issuing no more then 16 commands at a time. | |
1146 | */ | |
3155ebd2 SL |
1147 | vxfnreset(vx, cp) |
1148 | register int vx; | |
1149 | register struct vxcmd *cp; | |
1150 | { | |
1151 | register struct vx_softc *vs; | |
fd9caac3 | 1152 | register struct vxdevice *vp ; |
3155ebd2 SL |
1153 | register struct tty *tp, *tp0; |
1154 | register int i; | |
1155 | #ifdef notdef | |
1156 | register int on; | |
1157 | #endif | |
1158 | extern int vxrestart(); | |
1159 | int s = spl8(); | |
1160 | ||
1161 | vs = &vx_softc[vx]; | |
1162 | vs->vs_loport = cp->par[5]; | |
1163 | vs->vs_hiport = cp->par[7]; | |
1164 | vrelease(vs, cp); | |
1165 | vs->vs_nbr = vx; /* assign VIOC-X board number */ | |
1166 | vs->vs_state = VXS_READY; | |
1167 | ||
1168 | vp = (struct vxdevice *)((struct vba_device *)vxinfo[vx])->ui_addr; | |
1169 | vp->v_vcid = 0; | |
1170 | ||
1171 | /* | |
1172 | * Restore modem information and control. | |
1173 | */ | |
1174 | tp0 = &vx_tty[vx*16]; | |
1175 | for (i = vs->vs_loport; i <= vs->vs_hiport; i++) { | |
1176 | tp = tp0 + i; | |
1177 | if (tp->t_state&(TS_ISOPEN|TS_WOPEN)) { | |
1178 | tp->t_state &= ~TS_CARR_ON; | |
1179 | vcmodem(tp->t_dev, VMOD_ON); | |
1180 | if (tp->t_state&TS_CARR_ON) | |
1181 | wakeup((caddr_t)&tp->t_canq); | |
1182 | else if (tp->t_state & TS_ISOPEN) { | |
1183 | ttyflush(tp, FREAD|FWRITE); | |
1184 | if (tp->t_state&TS_FLUSH) | |
1185 | wakeup((caddr_t)&tp->t_state); | |
1186 | if ((tp->t_flags&NOHANG) == 0) { | |
1187 | gsignal(tp->t_pgrp, SIGHUP); | |
1188 | gsignal(tp->t_pgrp, SIGCONT); | |
1189 | } | |
1190 | } | |
1191 | } | |
1192 | /* | |
1193 | * If carrier has changed while we were resetting, | |
1194 | * take appropriate action. | |
1195 | */ | |
1196 | #ifdef notdef | |
1197 | on = vp->v_dcd & 1<<i; | |
1198 | if (on && (tp->t_state&TS_CARR_ON) == 0) { | |
1199 | tp->t_state |= TS_CARR_ON; | |
1200 | wakeup((caddr_t)&tp->t_canq); | |
1201 | } else if (!on && tp->t_state&TS_CARR_ON) { | |
1202 | tp->t_state &= ~TS_CARR_ON; | |
1203 | if (tp->t_state & TS_ISOPEN) { | |
1204 | ttyflush(tp, FREAD|FWRITE); | |
1205 | if (tp->t_state&TS_FLUSH) | |
1206 | wakeup((caddr_t)&tp->t_state); | |
1207 | if ((tp->t_flags&NOHANG) == 0) { | |
1208 | gsignal(tp->t_pgrp, SIGHUP); | |
1209 | gsignal(tp->t_pgrp, SIGCONT); | |
1210 | } | |
1211 | } | |
1212 | } | |
1213 | #endif | |
1214 | } | |
1215 | vs->vs_state = VXS_RESET; | |
1216 | timeout(vxrestart, (caddr_t)vx, hz); | |
1217 | splx(s); | |
1218 | } | |
1219 | ||
1220 | /* | |
1221 | * Restore a particular aspect of the VIOC. | |
1222 | */ | |
1223 | vxrestart(vx) | |
1224 | int vx; | |
1225 | { | |
1226 | register struct tty *tp, *tp0; | |
1227 | register struct vx_softc *vs; | |
1228 | register int i, cnt; | |
1229 | int s = spl8(); | |
1230 | ||
1231 | cnt = vx >> 8; | |
1232 | vx &= 0xff; | |
1233 | vs = &vx_softc[vx]; | |
1234 | vs->vs_state = VXS_READY; | |
1235 | tp0 = &vx_tty[vx*16]; | |
1236 | for (i = vs->vs_loport; i <= vs->vs_hiport; i++) { | |
1237 | tp = tp0 + i; | |
1238 | if (cnt != 0) { | |
1239 | tp->t_state &= ~(TS_BUSY|TS_TIMEOUT); | |
1240 | if (tp->t_state&(TS_ISOPEN|TS_WOPEN)) | |
1241 | vxstart(tp); /* restart pending output */ | |
1242 | } else { | |
1243 | if (tp->t_state&(TS_WOPEN|TS_ISOPEN)) | |
1244 | vxcparam(tp->t_dev, 0); | |
1245 | } | |
1246 | } | |
1247 | if (cnt == 0) { | |
1248 | vs->vs_state = VXS_RESET; | |
1249 | timeout(vxrestart, (caddr_t)(vx + 1*256), hz); | |
1250 | } else | |
1251 | printf("done\n"); | |
1252 | splx(s); | |
1253 | } | |
1254 | ||
1255 | vxreset(dev) | |
1256 | dev_t dev; | |
1257 | { | |
1258 | ||
1259 | vxstreset(minor(dev) >> 4); /* completes asynchronously */ | |
1260 | } | |
1261 | ||
1262 | vxfreset(vx) | |
1263 | register int vx; | |
1264 | { | |
1265 | struct vba_device *vi; | |
1266 | ||
1267 | if ((unsigned)vx > NVX || (vi = vxinfo[vx]) == 0 || vi->ui_addr == 0) | |
1268 | return (ENODEV); | |
1269 | vx_softc[vx].vs_state = VXS_READY; | |
1270 | vxstreset(vx); | |
1271 | return (0); /* completes asynchronously */ | |
1272 | } | |
1273 | ||
1274 | vcmodem(dev, flag) | |
1275 | dev_t dev; | |
1276 | { | |
1277 | struct tty *tp; | |
1278 | register struct vxcmd *cp; | |
1279 | register struct vx_softc *vs; | |
1280 | register struct vxdevice *kp; | |
1281 | register port; | |
1282 | int unit; | |
1283 | ||
1284 | unit = minor(dev); | |
1285 | tp = &vx_tty[unit]; | |
1286 | vs = (struct vx_softc *)tp->t_addr; | |
1287 | cp = vobtain(vs); | |
1288 | kp = (struct vxdevice *)((struct vba_device *)vxinfo[vs->vs_nbr])->ui_addr; | |
1289 | ||
1290 | port = unit & 017; | |
1291 | /* | |
1292 | * Issue MODEM command | |
1293 | */ | |
1294 | cp->cmd = VXC_MDMCTL; | |
1295 | cp->par[0] = (flag == VMOD_ON) ? V_ENAB : V_DISAB; | |
1296 | cp->par[1] = port; | |
1297 | vcmd(vs->vs_nbr, (caddr_t)&cp->cmd); | |
1298 | port -= vs->vs_loport; | |
1299 | if ((kp->v_dcd >> port) & 1) { | |
1300 | if (flag == VMOD_ON) | |
1301 | tp->t_state |= TS_CARR_ON; | |
1302 | return (1); | |
1303 | } | |
1304 | return (0); | |
1305 | } | |
1306 | ||
1307 | /* | |
1308 | * VCMINTR called when an unsolicited interrup occurs signaling | |
1309 | * some change of modem control state. | |
1310 | */ | |
1311 | vcmintr(vx) | |
1312 | register vx; | |
1313 | { | |
1314 | register struct vxdevice *kp; | |
1315 | register struct tty *tp; | |
1316 | register port; | |
1317 | ||
1318 | kp = (struct vxdevice *)((struct vba_device *)vxinfo[vx])->ui_addr; | |
1319 | port = kp->v_usdata[0] & 017; | |
1320 | tp = &vx_tty[vx*16+port]; | |
1321 | #if NVBSC > 0 | |
1322 | /* | |
1323 | * Check for change in DSR for BISYNC port. | |
1324 | */ | |
1325 | if (bscport[vx*16+port]&BISYNC) { | |
1326 | if (kp->v_ustat&DSR_CHG) { | |
fd9caac3 | 1327 | register struct vx_softc *xp; |
3155ebd2 SL |
1328 | register struct bsc *bp; |
1329 | extern struct bsc bsc[]; | |
1330 | ||
1331 | vs = (struct vx_softc *)tp->t_addr; | |
1332 | bp = &bsc[minor(tp->t_dev)] ; | |
1333 | bp->b_hlflgs &= ~BSC_DSR ; | |
1334 | if (kp->v_ustat & DSR_ON) | |
1335 | bp->b_hlflgs |= BSC_DSR ; | |
1336 | printf("BSC DSR Chg: %x\n", kp->v_ustat&DSR_CHG);/*XXX*/ | |
1337 | } | |
1338 | return; | |
1339 | } | |
1340 | #endif | |
1341 | if ((kp->v_ustat&DCD_ON) && ((tp->t_state&TS_CARR_ON) == 0)) { | |
1342 | tp->t_state |= TS_CARR_ON; | |
1343 | wakeup((caddr_t)&tp->t_canq); | |
1344 | return; | |
1345 | } | |
1346 | if ((kp->v_ustat&DCD_OFF) && (tp->t_state&TS_CARR_ON)) { | |
1347 | tp->t_state &= ~TS_CARR_ON; | |
1348 | if (tp->t_state&TS_ISOPEN) { | |
1349 | register struct vx_softc *vs; | |
1350 | register struct vcmds *cp; | |
1351 | register struct vxcmd *cmdp; | |
1352 | ||
1353 | ttyflush(tp, FREAD|FWRITE); | |
1354 | /* clear all pending trnansmits */ | |
1355 | vs = &vx_softc[vx]; | |
1356 | if (tp->t_state&(TS_BUSY|TS_FLUSH) && | |
1357 | vs->vs_vers == VXV_NEW) { | |
1358 | int i, cmdfound = 0; | |
1359 | ||
1360 | cp = &vs->vs_cmds; | |
1361 | for (i = cp->v_empty; i != cp->v_fill; ) { | |
1362 | cmdp = (struct vxcmd *)((long *)cp->cmdbuf[i]-1); | |
1363 | if ((cmdp->cmd == VXC_XMITDTA || | |
1364 | cmdp->cmd == VXC_XMITIMM) && | |
1365 | ((struct vxmit *)cmdp->par)->line == port) { | |
1366 | cmdfound++; | |
1367 | cmdp->cmd = VXC_FDTATOX; | |
1368 | cmdp->par[1] = port; | |
1369 | } | |
1370 | if (++i >= VC_CMDBUFL) | |
1371 | i = 0; | |
1372 | } | |
1373 | if (cmdfound) | |
1374 | tp->t_state &= ~(TS_BUSY|TS_FLUSH); | |
1375 | /* cmd is already in vioc, have to flush it */ | |
1376 | else { | |
1377 | cmdp = vobtain(vs); | |
1378 | cmdp->cmd = VXC_FDTATOX; | |
1379 | cmdp->par[1] = port; | |
1380 | vcmd(vx, (caddr_t)&cmdp->cmd); | |
1381 | } | |
1382 | } | |
1383 | if ((tp->t_flags&NOHANG) == 0) { | |
1384 | gsignal(tp->t_pgrp, SIGHUP); | |
1385 | gsignal(tp->t_pgrp, SIGCONT); | |
1386 | } | |
1387 | } | |
1388 | return; | |
1389 | } | |
1390 | if ((kp->v_ustat&BRK_CHR) && (tp->t_state&TS_ISOPEN)) { | |
1391 | (*linesw[tp->t_line].l_rint)(tp->t_intrc & 0377, tp); | |
1392 | return; | |
1393 | } | |
b8c32975 SL |
1394 | } |
1395 | #endif |