1 /* 2 * Copyright (c) 1988 Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)qv.c 1.15 (Berkeley) 12/16/90 8 */ 9 10 /* 11 * derived from: @(#)qv.c 1.8 (ULTRIX) 8/21/85 12 */ 13 14 /************************************************************************ 15 * * 16 * Copyright (c) 1985 by * 17 * Digital Equipment Corporation, Maynard, MA * 18 * All rights reserved. * 19 * * 20 * This software is furnished under a license and may be used and * 21 * copied only in accordance with the terms of such license and * 22 * with the inclusion of the above copyright notice. This * 23 * software or any other copies thereof may not be provided or * 24 * otherwise made available to any other person. No title to and * 25 * ownership of the software is hereby transferred. * 26 * * 27 * This software is derived from software received from the * 28 * University of California, Berkeley, and from Bell * 29 * Laboratories. Use, duplication, or disclosure is subject to * 30 * restrictions under license agreements with University of * 31 * California and with AT&T. * 32 * * 33 * The information in this software is subject to change without * 34 * notice and should not be construed as a commitment by Digital * 35 * Equipment Corporation. * 36 * * 37 * Digital assumes no responsibility for the use or reliability * 38 * of its software on equipment which is not supplied by Digital. * 39 * * 40 ************************************************************************ 41 * 42 * This driver provides glass tty functionality to the qvss. It is a strange 43 * device in that it supports three subchannels. The first being the asr, 44 * the second being a channel that intercepts the chars headed for the screen 45 * ( like a pseudo tty ) and the third being a source of mouse state changes. 46 * NOTE: the second is conditional on #ifdef CONS_HACK in this version 47 * of the driver, as it's a total crock. 48 * 49 * There may be one and only one qvss in the system. This restriction is based 50 * on the inability to map more than one at a time. This restriction will 51 * exist until the kernel has shared memory services. This driver therefore 52 * support a single unit. No attempt was made to have it service more. 53 * 54 * (this belongs in sccs - not here) 55 * 56 * 02 Aug 85 -- rjl 57 * Changed the names of the special setup routines so that the system 58 * can have a qvss or a qdss system console. 59 * 60 * 03 Jul 85 -- rjl 61 * Added a check for virtual mode in qvputc so that the driver 62 * doesn't crash while in a dump which is done in physical mode. 63 * 64 * 10 Apr 85 -- jg 65 * Well, our theory about keyboard handling was wrong; most of the 66 * keyboard is in autorepeat, down mode. These changes are to make 67 * the qvss work the same as the Vs100, which is not necessarily 68 * completely correct, as some chord usage may fail. But since we 69 * can't easily change the Vs100, we might as well propagate the 70 * problem to another device. There are also changes for screen and 71 * mouse accellaration. 72 * 73 * 27 Mar 85 -- rjl 74 * MicroVAX-II systems have interval timers that interrupt at ipl4. 75 * Everything else is higher and thus causes us to miss clock ticks. The 76 * problem isn't severe except in the case of a device like this one that 77 * generates lots of interrupts. We aren't willing to make this change to 78 * all device drivers but it seems acceptable in this case. 79 * 80 * 3 Dec 84 -- jg 81 * To continue the tradition of building a better mouse trap, this 82 * driver has been extended to form Vs100 style event queues. If the 83 * mouse device is open, the keyboard events are intercepted and put 84 * into the shared memory queue. Unfortunately, we are ending up with 85 * one of the longest Unix device drivers. Sigh.... 86 * 87 * 20 Nov 84 -- rjl 88 * As a further complication this driver is required to function as the 89 * virtual system console. This code runs before and during auto- 90 * configuration and therefore is require to have a second path for setup. 91 * It is futher constrained to have a character output routine that 92 * is not dependant on the interrupt system. 93 * 94 */ 95 96 97 #include "qv.h" 98 #if NQV > 0 99 100 #include "../include/pte.h" 101 102 #include "sys/param.h" 103 #include "sys/conf.h" 104 #include "sys/user.h" 105 #include "qvioctl.h" 106 #include "sys/tty.h" 107 #include "sys/map.h" 108 #include "sys/buf.h" 109 #include "sys/vm.h" 110 #include "sys/clist.h" 111 #include "sys/file.h" 112 #include "sys/uio.h" 113 #include "sys/kernel.h" 114 #include "sys/syslog.h" 115 #include "../include/cpu.h" 116 #include "../include/mtpr.h" 117 #include "ubareg.h" 118 #include "ubavar.h" 119 120 #define CONS_HACK 121 122 struct uba_device *qvinfo[NQV]; 123 124 struct tty qv_tty[NQV*4]; 125 126 #define nNQV NQV 127 int nqv = NQV*4; 128 129 /* 130 * Definition of the driver for the auto-configuration program. 131 */ 132 int qvprobe(), qvattach(), qvkint(), qvvint(); 133 u_short qvstd[] = { 0 }; 134 struct uba_driver qvdriver = 135 { qvprobe, 0, qvattach, 0, qvstd, "qv", qvinfo }; 136 137 extern char qvmem[][512*NBPG]; 138 extern struct pte QVmap[][512]; 139 140 /* 141 * Local variables for the driver. Initialized for 15' screen 142 * so that it can be used during the boot process. 143 */ 144 145 #define QVWAITPRI (PZERO+1) 146 #define QVSSMAJOR 40 147 148 #define QVKEYBOARD 0 /* minor 0, keyboard/glass tty */ 149 #define QVPCONS 1 /* minor 1, console interceptor XXX */ 150 #define QVMOUSECHAN 2 /* minor 2, mouse */ 151 #define QVSPARE 3 /* unused */ 152 #define QVCHAN(unit) ((unit) & 03) 153 /* 154 * v_putc is the switch that is used to redirect the console cnputc to the 155 * virtual console vputc. consops is used to redirect the console 156 * device to the qvss console. 157 */ 158 extern (*v_putc)(); 159 extern struct cdevsw *consops; 160 /* 161 * qv_def_scrn is used to select the appropriate tables. 0=15 inch 1=19 inch, 162 * 2 = uVAXII. 163 */ 164 int qv_def_scrn = 2; 165 166 #define QVMAXEVQ 64 /* must be power of 2 */ 167 #define EVROUND(x) ((x) & (QVMAXEVQ - 1)) 168 169 /* 170 * Screen parameters 15 & 19 inch monitors. These determine the max size in 171 * pixel and character units for the display and cursor positions. 172 * Notice that the mouse defaults to original square algorithm, but X 173 * will change to its defaults once implemented. 174 */ 175 struct qv_info *qv_scn; 176 struct qv_info qv_scn_defaults[] = { 177 {0, {0, 0}, 0, {0, 0}, 0, 0, 30, 80, 768, 480, 768-16, 480-16, 178 0, 0, 0, 0, 0, QVMAXEVQ, 0, 0, {0, 0}, {0, 0, 0, 0}, 2, 4}, 179 {0, {0, 0}, 0, {0, 0}, 0, 0, 55, 120, 960, 864, 960-16, 864-16, 180 0, 0, 0, 0, 0, QVMAXEVQ, 0, 0, {0, 0}, {0, 0, 0, 0}, 2, 4}, 181 {0, {0, 0}, 0, {0, 0}, 0, 0, 56, 120,1024, 864,1024-16, 864-16, 182 0, 0, 0, 0, 0, QVMAXEVQ, 0, 0, {0, 0}, {0, 0, 0, 0}, 2, 4} 183 }; 184 185 /* 186 * Screen controller initialization parameters. The definations and use 187 * of these parameters can be found in the Motorola 68045 crtc specs. In 188 * essence they set the display parameters for the chip. The first set is 189 * for the 15" screen and the second is for the 19" seperate sync. There 190 * is also a third set for a 19" composite sync monitor which we have not 191 * tested and which is not supported. 192 */ 193 static short qv_crt_parms[][16] = { 194 { 31, 25, 27, 0142, 31, 13, 30, 31, 4, 15, 040, 0, 0, 0, 0, 0 }, 195 /* VR100*/ { 39, 30, 32, 0262, 55, 5, 54, 54, 4, 15, 040, 0, 0, 0, 0, 0 }, 196 /* VR260*/ { 39, 32, 33, 0264, 56, 5, 54, 54, 4, 15, 040, 0, 0, 0, 0, 0}, 197 }; 198 199 /* 200 * Screen parameters 201 */ 202 struct qv_info *qv_scn; 203 int maxqvmem = 254*1024 - sizeof(struct qv_info) - QVMAXEVQ*sizeof(vsEvent); 204 205 /* 206 * Keyboard state 207 */ 208 struct qv_keyboard { 209 int shift; /* state variables */ 210 int cntrl; 211 int lock; 212 char last; /* last character */ 213 } qv_keyboard; 214 215 short divdefaults[15] = { LK_DOWN, /* 0 doesn't exist */ 216 LK_AUTODOWN, LK_AUTODOWN, LK_AUTODOWN, LK_DOWN, 217 LK_UPDOWN, LK_UPDOWN, LK_AUTODOWN, LK_AUTODOWN, 218 LK_AUTODOWN, LK_AUTODOWN, LK_AUTODOWN, LK_AUTODOWN, 219 LK_DOWN, LK_AUTODOWN }; 220 221 short kbdinitstring[] = { /* reset any random keyboard stuff */ 222 LK_AR_ENABLE, /* we want autorepeat by default */ 223 LK_CL_ENABLE, /* keyclick */ 224 0x84, /* keyclick volume */ 225 LK_KBD_ENABLE, /* the keyboard itself */ 226 LK_BELL_ENABLE, /* keyboard bell */ 227 0x84, /* bell volume */ 228 LK_LED_DISABLE, /* keyboard leds */ 229 LED_ALL }; 230 #define KBD_INIT_LENGTH sizeof(kbdinitstring)/sizeof(short) 231 232 #define TOY ((time.tv_sec * 100) + (time.tv_usec / 10000)) 233 234 int qv_ipl_lo = 1; /* IPL low flag */ 235 int mouseon = 0; /* mouse channel is enabled when 1*/ 236 struct proc *qvrsel; /* process waiting for select */ 237 238 int qvstart(), qvputc(), ttrstrt(); 239 240 /* 241 * Keyboard translation and font tables 242 */ 243 extern u_short q_key[], q_shift_key[], q_cursor[]; 244 extern char *q_special[], q_font[]; 245 246 /* 247 * See if the qvss will interrupt. 248 */ 249 250 /*ARGSUSED*/ 251 qvprobe(reg, ctlr) 252 caddr_t reg; 253 int ctlr; 254 { 255 register int br, cvec; /* these are ``value-result'' */ 256 register struct qvdevice *qvaddr = (struct qvdevice *)reg; 257 static int tvec, ovec; 258 259 #ifdef lint 260 br = 0; cvec = br; br = cvec; 261 qvkint(0); qvvint(0); 262 #endif 263 /* 264 * Allocate the next two vectors 265 */ 266 tvec = 0360; 267 ovec = cvec; 268 /* 269 * Turn on the keyboard and vertical interrupt vectors. 270 */ 271 qvaddr->qv_intcsr = 0; /* init the interrupt controler */ 272 qvaddr->qv_intcsr = 0x40; /* reset irr */ 273 qvaddr->qv_intcsr = 0x80; /* specify individual vectors */ 274 qvaddr->qv_intcsr = 0xc0; /* preset autoclear data */ 275 qvaddr->qv_intdata = 0xff; /* all setup as autoclear */ 276 277 qvaddr->qv_intcsr = 0xe0; /* preset vector address 1 */ 278 qvaddr->qv_intdata = tvec; /* give it the keyboard vector */ 279 qvaddr->qv_intcsr = 0x28; /* enable tx/rx interrupt */ 280 281 qvaddr->qv_intcsr = 0xe1; /* preset vector address 2 */ 282 qvaddr->qv_intdata = tvec+4; /* give it the vertical sysnc */ 283 qvaddr->qv_intcsr = 0x29; /* enable */ 284 285 qvaddr->qv_intcsr = 0xa1; /* arm the interrupt ctrl */ 286 287 qvaddr->qv_uartcmd = 0x15; /* set mode pntr/enable rx/tx */ 288 qvaddr->qv_uartmode = 0x17; /* noparity, 8-bit */ 289 qvaddr->qv_uartmode = 0x07; /* 1 stop bit */ 290 qvaddr->qv_uartstatus = 0x99; /* 4800 baud xmit/recv */ 291 qvaddr->qv_uartintstatus = 2; /* enable recv interrupts */ 292 293 qvaddr->qv_csr |= QV_INT_ENABLE | QV_CUR_MODE; 294 295 DELAY(10000); 296 297 qvaddr->qv_csr &= ~QV_INT_ENABLE; 298 299 /* 300 * If the qvss did interrupt it was the second vector not 301 * the first so we have to return the first so that they 302 * will be setup properly 303 */ 304 if( ovec == cvec ) { 305 return 0; 306 } else 307 cvec -= 4; 308 return (sizeof (struct qvdevice)); 309 } 310 311 /* 312 * Routine called to attach a qv. 313 */ 314 qvattach(ui) 315 struct uba_device *ui; 316 { 317 318 /* 319 * If not the console then we have to setup the screen 320 */ 321 if (v_putc != qvputc || ui->ui_unit != 0) 322 (void)qv_setup((struct qvdevice *)ui->ui_addr, ui->ui_unit, 1); 323 else 324 qv_scn->qvaddr = (struct qvdevice *)ui->ui_addr; 325 } 326 327 328 /*ARGSUSED*/ 329 qvopen(dev, flag) 330 dev_t dev; 331 { 332 register struct tty *tp; 333 register int unit, qv; 334 register struct qvdevice *qvaddr; 335 register struct uba_device *ui; 336 register struct qv_info *qp = qv_scn; 337 338 unit = minor(dev); 339 qv = unit >> 2; 340 if (unit >= nqv || (ui = qvinfo[qv])== 0 || ui->ui_alive == 0) 341 return (ENXIO); 342 if (QVCHAN(unit) == QVSPARE 343 #ifndef CONS_HACK 344 || QVCHAN(unit) == QVPCONS 345 #endif 346 ) 347 return (ENODEV); 348 tp = &qv_tty[unit]; 349 if (tp->t_state&TS_XCLUDE && u.u_uid!=0) 350 return (EBUSY); 351 qvaddr = (struct qvdevice *)ui->ui_addr; 352 qv_scn->qvaddr = qvaddr; 353 tp->t_addr = (caddr_t)qvaddr; 354 tp->t_oproc = qvstart; 355 356 if ((tp->t_state&TS_ISOPEN) == 0) { 357 ttychars(tp); 358 tp->t_state = TS_ISOPEN|TS_CARR_ON; 359 tp->t_ispeed = B9600; 360 tp->t_ospeed = B9600; 361 if( QVCHAN(unit) == QVKEYBOARD ) { 362 /* make sure keyboard is always back to default */ 363 qvkbdreset(); 364 qvaddr->qv_csr |= QV_INT_ENABLE; 365 tp->t_iflag = TTYDEF_IFLAG; 366 tp->t_oflag = TTYDEF_OFLAG; 367 tp->t_lflag = TTYDEF_LFLAG; 368 tp->t_cflag = TTYDEF_CFLAG; 369 } 370 /* XXX ?why? else 371 tp->t_flags = RAW; 372 */ 373 } 374 /* 375 * Process line discipline specific open if its not the 376 * mouse channel. For the mouse we init the ring ptr's. 377 */ 378 if( QVCHAN(unit) != QVMOUSECHAN ) 379 return ((*linesw[tp->t_line].l_open)(dev, tp)); 380 else { 381 mouseon = 1; 382 /* set up event queue for later */ 383 qp->ibuff = (vsEvent *)qp - QVMAXEVQ; 384 qp->iqsize = QVMAXEVQ; 385 qp->ihead = qp->itail = 0; 386 return 0; 387 } 388 } 389 390 /* 391 * Close a QVSS line. 392 */ 393 /*ARGSUSED*/ 394 qvclose(dev, flag) 395 dev_t dev; 396 int flag; 397 { 398 register struct tty *tp; 399 register unit; 400 register struct qvdevice *qvaddr; 401 int error; 402 403 unit = minor(dev); 404 tp = &qv_tty[unit]; 405 406 /* 407 * If this is the keyboard unit (0) shutdown the 408 * interface. 409 */ 410 qvaddr = (struct qvdevice *)tp->t_addr; 411 if (QVCHAN(unit) == QVKEYBOARD ) 412 qvaddr->qv_csr &= ~QV_INT_ENABLE; 413 414 /* 415 * If unit is not the mouse channel call the line disc. 416 * otherwise clear the state flag, and put the keyboard into down/up. 417 */ 418 if (QVCHAN(unit) != QVMOUSECHAN) { 419 (*linesw[tp->t_line].l_close)(tp); 420 error = ttyclose(tp); 421 } else { 422 mouseon = 0; 423 qv_init( qvaddr ); 424 error = 0; 425 } 426 tp->t_state = 0; 427 return (error); 428 } 429 430 qvread(dev, uio) 431 dev_t dev; 432 struct uio *uio; 433 { 434 register struct tty *tp; 435 int unit = minor( dev ); 436 437 if (QVCHAN(unit) != QVMOUSECHAN) { 438 tp = &qv_tty[unit]; 439 return ((*linesw[tp->t_line].l_read)(tp, uio)); 440 } 441 return (ENXIO); 442 } 443 444 qvwrite(dev, uio) 445 dev_t dev; 446 struct uio *uio; 447 { 448 register struct tty *tp; 449 int unit = minor( dev ); 450 451 /* 452 * If this is the mouse we simply fake the i/o, otherwise 453 * we let the line disp. handle it. 454 */ 455 if (QVCHAN(unit) == QVMOUSECHAN) { 456 uio->uio_offset = uio->uio_resid; 457 uio->uio_resid = 0; 458 return 0; 459 } 460 tp = &qv_tty[unit]; 461 return ((*linesw[tp->t_line].l_write)(tp, uio)); 462 } 463 464 465 /* 466 * Mouse activity select routine 467 */ 468 qvselect(dev, rw) 469 dev_t dev; 470 { 471 register int s = spl5(); 472 register struct qv_info *qp = qv_scn; 473 474 if( QVCHAN(minor(dev)) == QVMOUSECHAN ) 475 switch(rw) { 476 case FREAD: /* if events okay */ 477 if(qp->ihead != qp->itail) { 478 splx(s); 479 return(1); 480 } 481 qvrsel = u.u_procp; 482 splx(s); 483 return(0); 484 default: /* can never write */ 485 splx(s); 486 return(0); 487 } 488 else { 489 splx(s); 490 return( ttselect(dev, rw) ); 491 } 492 /*NOTREACHED*/ 493 } 494 495 /* 496 * QVSS keyboard interrupt. 497 */ 498 qvkint(qv) 499 int qv; 500 { 501 struct tty *tp; 502 register c; 503 struct uba_device *ui; 504 register int key; 505 register int i; 506 507 ui = qvinfo[qv]; 508 if (ui == 0 || ui->ui_alive == 0) 509 return; 510 tp = &qv_tty[qv<<2]; 511 /* 512 * Get a character from the keyboard. 513 */ 514 key = ((struct qvdevice *)ui->ui_addr)->qv_uartdata & 0xff; 515 if( mouseon == 0) { 516 /* 517 * Check for various keyboard errors 518 */ 519 if( key == LK_POWER_ERROR || key == LK_KDOWN_ERROR || 520 key == LK_INPUT_ERROR || key == LK_OUTPUT_ERROR) { 521 log(LOG_ERR, 522 "qv%d: Keyboard error, code = %x\n",qv,key); 523 return; 524 } 525 if( key < LK_LOWEST ) return; 526 /* 527 * See if its a state change key 528 */ 529 switch ( key ) { 530 case LOCK: 531 qv_keyboard.lock ^= 0xffff; /* toggle */ 532 if( qv_keyboard.lock ) 533 qv_key_out( LK_LED_ENABLE ); 534 else 535 qv_key_out( LK_LED_DISABLE ); 536 qv_key_out( LED_3 ); 537 return; 538 case SHIFT: 539 qv_keyboard.shift ^= 0xffff; 540 return; 541 case CNTRL: 542 qv_keyboard.cntrl ^= 0xffff; 543 return; 544 case ALLUP: 545 qv_keyboard.cntrl = qv_keyboard.shift = 0; 546 return; 547 case REPEAT: 548 c = qv_keyboard.last; 549 break; 550 default: 551 /* 552 * Test for control characters. If set, see if the character 553 * is elligible to become a control character. 554 */ 555 if( qv_keyboard.cntrl ) { 556 c = q_key[ key ]; 557 if( c >= ' ' && c <= '~' ) 558 c &= 0x1f; 559 } else if( qv_keyboard.lock || qv_keyboard.shift ) 560 c = q_shift_key[ key ]; 561 else 562 c = q_key[ key ]; 563 break; 564 } 565 566 qv_keyboard.last = c; 567 568 /* 569 * Check for special function keys 570 */ 571 if( c & 0x80 ) { 572 register char *string; 573 string = q_special[ c & 0x7f ]; 574 while( *string ) 575 (*linesw[tp->t_line].l_rint)(*string++, tp); 576 } else 577 (*linesw[tp->t_line].l_rint)(c, tp); 578 } else { 579 /* 580 * Mouse channel is open put it into the event queue 581 * instead. 582 */ 583 register struct qv_info *qp = qv_scn; 584 register vsEvent *vep; 585 586 if ((i = EVROUND(qp->itail+1)) == qp->ihead) 587 return; 588 vep = &qp->ibuff[qp->itail]; 589 vep->vse_direction = VSE_KBTRAW; 590 vep->vse_type = VSE_BUTTON; 591 vep->vse_device = VSE_DKB; 592 vep->vse_x = qp->mouse.x; 593 vep->vse_y = qp->mouse.y; 594 vep->vse_time = TOY; 595 vep->vse_key = key; 596 qp->itail = i; 597 if(qvrsel) { 598 selwakeup(qvrsel,0); 599 qvrsel = 0; 600 } 601 } 602 } 603 604 /* 605 * Ioctl for QVSS. 606 */ 607 /*ARGSUSED*/ 608 qvioctl(dev, cmd, data, flag) 609 dev_t dev; 610 register caddr_t data; 611 { 612 register struct tty *tp; 613 register int unit = minor(dev); 614 register struct qv_info *qp = qv_scn; 615 register struct qv_kpcmd *qk; 616 register unsigned char *cp; 617 int error; 618 619 /* 620 * Check for and process qvss specific ioctl's 621 */ 622 switch( cmd ) { 623 case QIOCGINFO: /* return screen info */ 624 bcopy((caddr_t)qp, data, sizeof (struct qv_info)); 625 break; 626 627 case QIOCSMSTATE: /* set mouse state */ 628 qp->mouse = *((vsCursor *)data); 629 qv_pos_cur( qp->mouse.x, qp->mouse.y ); 630 break; 631 632 case QIOCINIT: /* init screen */ 633 qv_init( qp->qvaddr ); 634 break; 635 636 case QIOCKPCMD: 637 qk = (struct qv_kpcmd *)data; 638 if(qk->nbytes == 0) qk->cmd |= 0200; 639 if(mouseon == 0) qk->cmd |= 1; /* no mode changes */ 640 qv_key_out(qk->cmd); 641 cp = &qk->par[0]; 642 while(qk->nbytes-- > 0) { /* terminate parameters */ 643 if(qk->nbytes <= 0) *cp |= 0200; 644 qv_key_out(*cp++); 645 } 646 break; 647 case QIOCADDR: /* get struct addr */ 648 *(struct qv_info **) data = qp; 649 break; 650 default: /* not ours ?? */ 651 tp = &qv_tty[unit]; 652 error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag); 653 if (error >= 0) 654 return (error); 655 error = ttioctl(tp, cmd, data, flag); 656 if (error >= 0) { 657 return (error); 658 } 659 break; 660 } 661 return (0); 662 } 663 /* 664 * Initialize the screen and the scanmap 665 */ 666 qv_init(qvaddr) 667 struct qvdevice *qvaddr; 668 { 669 register short *scanline; 670 register int i; 671 register short scan; 672 register char *ptr; 673 register struct qv_info *qp = qv_scn; 674 675 /* 676 * Clear the bit map 677 */ 678 for( i=0 , ptr = qp->bitmap ; i<240 ; i += 2 , ptr += 2048) 679 bzero( ptr, 2048 ); 680 /* 681 * Reinitialize the scanmap 682 */ 683 scan = qvaddr->qv_csr & QV_MEM_BANK; 684 scanline = qp->scanmap; 685 for(i = 0 ; i < qp->max_y ; i++ ) 686 *scanline++ = scan++; 687 688 /* 689 * Home the cursor 690 */ 691 qp->row = qp->col = 0; 692 693 /* 694 * Reset the cursor to the default type. 695 */ 696 for( i=0 ; i<16 ; i++ ) 697 qp->cursorbits[i] = q_cursor[i]; 698 qvaddr->qv_csr |= QV_CUR_MODE; 699 /* 700 * Reset keyboard to default state. 701 */ 702 qvkbdreset(); 703 } 704 705 qvreset() 706 { 707 } 708 qvkbdreset() 709 { 710 register int i; 711 qv_key_out(LK_DEFAULTS); 712 for( i=1 ; i < 15 ; i++ ) 713 qv_key_out( divdefaults[i] | (i<<3)); 714 for (i = 0; i < KBD_INIT_LENGTH; i++) 715 qv_key_out(kbdinitstring[i]); 716 } 717 718 #define abs(x) (((x) > 0) ? (x) : (-(x))) 719 /* 720 * QVSS vertical sync interrupt 721 */ 722 qvvint(qv) 723 int qv; 724 { 725 extern int selwait; 726 register struct qvdevice *qvaddr; 727 struct uba_device *ui; 728 register struct qv_info *qp = qv_scn; 729 int unit; 730 struct tty *tp0; 731 int i; 732 register int j; 733 /* 734 * Mouse state info 735 */ 736 static ushort omouse = 0, nmouse = 0; 737 static char omx=0, omy=0, mx=0, my=0, om_switch=0, m_switch=0; 738 register int dx, dy; 739 740 /* 741 * Test and set the qv_ipl_lo flag. If the result is not zero then 742 * someone else must have already gotten here. 743 */ 744 if( --qv_ipl_lo ) 745 return; 746 (void)spl4(); 747 ui = qvinfo[qv]; 748 unit = qv<<2; 749 qvaddr = (struct qvdevice *)ui->ui_addr; 750 tp0 = &qv_tty[QVCHAN(unit) + QVMOUSECHAN]; 751 /* 752 * See if the mouse has moved. 753 */ 754 if( omouse != (nmouse = qvaddr->qv_mouse) ) { 755 omouse = nmouse; 756 mx = nmouse & 0xff; 757 my = nmouse >> 8; 758 dy = my - omy; omy = my; 759 dx = mx - omx; omx = mx; 760 if( dy < 50 && dy > -50 && dx < 50 && dx > -50 ) { 761 register vsEvent *vep; 762 if( qp->mscale < 0 ) { /* Ray Lanza's original */ 763 if( dy < 0 ) 764 dy = -( dy * dy ); 765 else 766 dy *= dy; 767 if( dx < 0 ) 768 dx = -( dx * dx ); 769 else 770 dx *= dx; 771 } 772 else { /* Vs100 style, see WGA spec */ 773 int thresh = qp->mthreshold; 774 int scale = qp->mscale; 775 if( abs(dx) > thresh ) { 776 if ( dx < 0 ) 777 dx = (dx + thresh)*scale - thresh; 778 else 779 dx = (dx - thresh)*scale + thresh; 780 } 781 if( abs(dy) > thresh ) { 782 if ( dy < 0 ) 783 dy = (dy + thresh)*scale - thresh; 784 else 785 dy = (dy - thresh)*scale + thresh; 786 } 787 } 788 qp->mouse.x += dx; 789 qp->mouse.y -= dy; 790 if( qp->mouse.x < 0 ) 791 qp->mouse.x = 0; 792 if( qp->mouse.y < 0 ) 793 qp->mouse.y = 0; 794 if( qp->mouse.x > qp->max_cur_x ) 795 qp->mouse.x = qp->max_cur_x; 796 if( qp->mouse.y > qp->max_cur_y ) 797 qp->mouse.y = qp->max_cur_y; 798 if( tp0->t_state & TS_ISOPEN ) 799 qv_pos_cur( qp->mouse.x, qp->mouse.y ); 800 if (qp->mouse.y < qp->mbox.bottom && 801 qp->mouse.y >= qp->mbox.top && 802 qp->mouse.x < qp->mbox.right && 803 qp->mouse.x >= qp->mbox.left) goto switches; 804 qp->mbox.bottom = 0; /* trash box */ 805 if (EVROUND(qp->itail+1) == qp->ihead) 806 goto switches; 807 i = EVROUND(qp->itail - 1); 808 if ((qp->itail != qp->ihead) && (i != qp->ihead)) { 809 vep = & qp->ibuff[i]; 810 if(vep->vse_type == VSE_MMOTION) { 811 vep->vse_x = qp->mouse.x; 812 vep->vse_y = qp->mouse.y; 813 goto switches; 814 } 815 } 816 /* put event into queue and do select */ 817 vep = & qp->ibuff[qp->itail]; 818 vep->vse_type = VSE_MMOTION; 819 vep->vse_time = TOY; 820 vep->vse_x = qp->mouse.x; 821 vep->vse_y = qp->mouse.y; 822 qp->itail = EVROUND(qp->itail+1); 823 } 824 } 825 /* 826 * See if mouse switches have changed. 827 */ 828 switches:if( om_switch != ( m_switch = (qvaddr->qv_csr & QV_MOUSE_ANY) >> 8 ) ) { 829 qp->mswitches = ~m_switch & 0x7; 830 for (j = 0; j < 3; j++) { /* check each switch */ 831 register vsEvent *vep; 832 if ( ((om_switch>>j) & 1) == ((m_switch>>j) & 1) ) 833 continue; 834 /* check for room in the queue */ 835 if ((i = EVROUND(qp->itail+1)) == qp->ihead) return; 836 /* put event into queue and do select */ 837 vep = &qp->ibuff[qp->itail]; 838 vep->vse_type = VSE_BUTTON; 839 vep->vse_key = 2 - j; 840 vep->vse_direction = VSE_KBTDOWN; 841 if ( (m_switch >> j) & 1) 842 vep->vse_direction = VSE_KBTUP; 843 vep->vse_device = VSE_MOUSE; 844 vep->vse_time = TOY; 845 vep->vse_x = qp->mouse.x; 846 vep->vse_y = qp->mouse.y; 847 } 848 qp->itail = i; 849 om_switch = m_switch; 850 qp->mswitches = m_switch; 851 } 852 /* if we have proc waiting, and event has happened, wake him up */ 853 if(qvrsel && (qp->ihead != qp->itail)) { 854 selwakeup(qvrsel,0); 855 qvrsel = 0; 856 } 857 /* 858 * Okay we can take another hit now 859 */ 860 qv_ipl_lo = 1; 861 } 862 863 /* 864 * Start transmission 865 */ 866 qvstart(tp) 867 register struct tty *tp; 868 { 869 register int unit, c; 870 register struct tty *tp0; 871 int s; 872 873 unit = minor(tp->t_dev); 874 #ifdef CONS_HACK 875 tp0 = &qv_tty[(unit&0xfc)+QVPCONS]; 876 #endif 877 unit = QVCHAN(unit); 878 879 s = spl5(); 880 /* 881 * If it's currently active, or delaying, no need to do anything. 882 */ 883 if (tp->t_state&(TS_TIMEOUT|TS_BUSY|TS_TTSTOP)) 884 goto out; 885 /* 886 * Display chars until the queue is empty, if the second subchannel 887 * is open direct them there. Drop characters from subchannels other 888 * than 0 on the floor. 889 */ 890 891 while( tp->t_outq.c_cc ) { 892 c = getc(&tp->t_outq); 893 if (unit == QVKEYBOARD) 894 #ifdef CONS_HACK 895 if( tp0->t_state & TS_ISOPEN ){ 896 (*linesw[tp0->t_line].l_rint)(c, tp0); 897 } else 898 #endif 899 qvputchar( c & 0xff ); 900 } 901 /* 902 * Position the cursor to the next character location. 903 */ 904 qv_pos_cur( qv_scn->col*8, qv_scn->row*15 ); 905 906 /* 907 * If there are sleepers, and output has drained below low 908 * water mark, wake up the sleepers. 909 */ 910 if ( tp->t_outq.c_cc<= tp->t_lowat ) { 911 if (tp->t_state&TS_ASLEEP){ 912 tp->t_state &= ~TS_ASLEEP; 913 wakeup((caddr_t)&tp->t_outq); 914 } 915 } 916 tp->t_state &= ~TS_BUSY; 917 out: 918 splx(s); 919 } 920 921 /* 922 * Stop output on a line, e.g. for ^S/^Q or output flush. 923 */ 924 /*ARGSUSED*/ 925 qvstop(tp, flag) 926 register struct tty *tp; 927 { 928 register int s; 929 930 /* 931 * Block input/output interrupts while messing with state. 932 */ 933 s = spl5(); 934 if (tp->t_state & TS_BUSY) { 935 if ((tp->t_state&TS_TTSTOP)==0) { 936 tp->t_state |= TS_FLUSH; 937 } else 938 tp->t_state &= ~TS_BUSY; 939 } 940 splx(s); 941 } 942 943 qvputc(c) 944 char c; 945 { 946 qvputchar(c); 947 if (c == '\n') 948 qvputchar('\r'); 949 } 950 951 /* 952 * Routine to display a character on the screen. The model used is a 953 * glass tty. It is assummed that the user will only use this emulation 954 * during system boot and that the screen will be eventually controlled 955 * by a window manager. 956 * 957 */ 958 qvputchar( c ) 959 register char c; 960 { 961 962 register char *b_row, *f_row; 963 register int i; 964 register short *scanline; 965 register int ote = 128; 966 register struct qv_info *qp = qv_scn; 967 968 /* 969 * This routine may be called in physical mode by the dump code 970 * so we check and punt if that's the case. 971 */ 972 if( (mfpr(MAPEN) & 1) == 0 ) 973 return; 974 975 c &= 0x7f; 976 977 switch ( c ) { 978 case '\t': /* tab */ 979 for( i = 8 - (qp->col & 0x7) ; i > 0 ; i-- ) 980 qvputchar( ' ' ); 981 break; 982 983 case '\r': /* return */ 984 qp->col = 0; 985 break; 986 987 case '\010': /* backspace */ 988 if( --qp->col < 0 ) 989 qp->col = 0; 990 break; 991 992 case '\n': /* linefeed */ 993 if( qp->row+1 >= qp->max_row ) 994 qvscroll(); 995 else 996 qp->row++; 997 /* 998 * Position the cursor to the next character location. 999 */ 1000 qv_pos_cur( qp->col*8, qp->row*15 ); 1001 break; 1002 1003 case '\007': /* bell */ 1004 /* 1005 * We don't do anything to the keyboard until after 1006 * autoconfigure. 1007 */ 1008 if( qp->qvaddr ) 1009 qv_key_out( LK_RING_BELL ); 1010 return; 1011 1012 default: 1013 if( c >= ' ' && c <= '~' ) { 1014 scanline = qp->scanmap; 1015 b_row = qp->bitmap+(scanline[qp->row*15]&0x3ff)*128+qp->col; 1016 i = c - ' '; 1017 if( i < 0 || i > 95 ) 1018 i = 0; 1019 else 1020 i *= 15; 1021 f_row = (char *)((int)q_font + i); 1022 1023 /* for( i=0 ; i<15 ; i++ , b_row += 128, f_row++ ) 1024 *b_row = *f_row;*/ 1025 /* inline expansion for speed */ 1026 *b_row = *f_row++; b_row += ote; 1027 *b_row = *f_row++; b_row += ote; 1028 *b_row = *f_row++; b_row += ote; 1029 *b_row = *f_row++; b_row += ote; 1030 *b_row = *f_row++; b_row += ote; 1031 *b_row = *f_row++; b_row += ote; 1032 *b_row = *f_row++; b_row += ote; 1033 *b_row = *f_row++; b_row += ote; 1034 *b_row = *f_row++; b_row += ote; 1035 *b_row = *f_row++; b_row += ote; 1036 *b_row = *f_row++; b_row += ote; 1037 *b_row = *f_row++; b_row += ote; 1038 *b_row = *f_row++; b_row += ote; 1039 *b_row = *f_row++; b_row += ote; 1040 *b_row = *f_row++; b_row += ote; 1041 1042 if( ++qp->col >= qp->max_col ) { 1043 qp->col = 0 ; 1044 if( qp->row+1 >= qp->max_row ) 1045 qvscroll(); 1046 else 1047 qp->row++; 1048 } 1049 } 1050 break; 1051 } 1052 } 1053 1054 /* 1055 * Position the cursor to a particular spot. 1056 */ 1057 qv_pos_cur( x, y) 1058 register int x,y; 1059 { 1060 register struct qvdevice *qvaddr; 1061 register struct qv_info *qp = qv_scn; 1062 register index; 1063 1064 if( qvaddr = qp->qvaddr ) { 1065 if( y < 0 || y > qp->max_cur_y ) 1066 y = qp->max_cur_y; 1067 if( x < 0 || x > qp->max_cur_x ) 1068 x = qp->max_cur_x; 1069 qp->cursor.x = x; /* keep track of real cursor*/ 1070 qp->cursor.y = y; /* position, indep. of mouse*/ 1071 1072 qvaddr->qv_crtaddr = 10; /* select cursor start reg */ 1073 qvaddr->qv_crtdata = y & 0xf; 1074 qvaddr->qv_crtaddr = 11; /* select cursor end reg */ 1075 qvaddr->qv_crtdata = y & 0xf; 1076 qvaddr->qv_crtaddr = 14; /* select cursor y pos. */ 1077 qvaddr->qv_crtdata = y >> 4; 1078 qvaddr->qv_xcur = x; /* pos x axis */ 1079 /* 1080 * If the mouse is being used then we change the mode of 1081 * cursor display based on the pixels under the cursor 1082 */ 1083 if( mouseon ) { 1084 index = y*128 + x/8; 1085 if( qp->bitmap[ index ] && qp->bitmap[ index+128 ] ) 1086 qvaddr->qv_csr &= ~QV_CUR_MODE; 1087 else 1088 qvaddr->qv_csr |= QV_CUR_MODE; 1089 } 1090 } 1091 } 1092 /* 1093 * Scroll the bitmap by moving the scanline map words. This could 1094 * be done by moving the bitmap but it's much too slow for a full screen. 1095 * The only drawback is that the scanline map must be reset when the user 1096 * wants to do graphics. 1097 */ 1098 qvscroll() 1099 { 1100 short tmpscanlines[15]; 1101 register char *b_row; 1102 register short *scanline; 1103 register struct qv_info *qp = qv_scn; 1104 1105 /* 1106 * If the mouse is on we don't scroll so that the bit map 1107 * remains sane. 1108 */ 1109 if( mouseon ) { 1110 qp->row = 0; 1111 return; 1112 } 1113 /* 1114 * Save the first 15 scanlines so that we can put them at 1115 * the bottom when done. 1116 */ 1117 bcopy((caddr_t)qp->scanmap, (caddr_t)tmpscanlines, sizeof tmpscanlines); 1118 1119 /* 1120 * Clear the wrapping line so that it won't flash on the bottom 1121 * of the screen. 1122 */ 1123 scanline = qp->scanmap; 1124 b_row = qp->bitmap+(*scanline&0x3ff)*128; 1125 bzero( b_row, 1920 ); 1126 1127 /* 1128 * Now move the scanlines down 1129 */ 1130 bcopy((caddr_t)(qp->scanmap+15), (caddr_t)qp->scanmap, 1131 (qp->row * 15) * sizeof (short) ); 1132 1133 /* 1134 * Now put the other lines back 1135 */ 1136 bcopy((caddr_t)tmpscanlines, (caddr_t)(qp->scanmap+(qp->row * 15)), 1137 sizeof (tmpscanlines) ); 1138 1139 } 1140 1141 /* 1142 * Output to the keyboard. This routine status polls the transmitter on the 1143 * keyboard to output a code. The timer is to avoid hanging on a bad device. 1144 */ 1145 qv_key_out(c) 1146 u_short c; 1147 { 1148 int timer = 30000; 1149 register struct qv_info *qp = qv_scn; 1150 1151 if (qp->qvaddr) { 1152 while ((qp->qvaddr->qv_uartstatus & 0x4) == 0 && timer--) 1153 ; 1154 qp->qvaddr->qv_uartdata = c; 1155 } 1156 } 1157 /* 1158 * Virtual console initialization. This routine sets up the qvss so that it can 1159 * be used as the system console. It is invoked before autoconfig and has to do 1160 * everything necessary to allow the device to serve as the system console. 1161 * In this case it must map the q-bus and device areas and initialize the qvss 1162 * screen. 1163 */ 1164 qvcons_init() 1165 { 1166 struct percpu *pcpu; /* pointer to percpu structure */ 1167 register struct qbus *qb; 1168 struct qvdevice *qvaddr; /* device pointer */ 1169 short *devptr; /* virtual device space */ 1170 extern cnputc(); /* standard serial console putc */ 1171 #define QVSSCSR 017200 1172 1173 /* 1174 * If secondary console already configured, 1175 * don't override the previous one. 1176 */ 1177 if (v_putc != cnputc) 1178 return 0; 1179 /* 1180 * find the percpu entry that matches this machine. 1181 */ 1182 for( pcpu = percpu ; pcpu && pcpu->pc_cputype != cpu ; pcpu++ ) 1183 ; 1184 if( pcpu == NULL ) 1185 return 0; 1186 if (pcpu->pc_io->io_type != IO_QBUS) 1187 return 0; 1188 1189 /* 1190 * Found an entry for this cpu. Because this device is Microvax specific 1191 * we assume that there is a single q-bus and don't have to worry about 1192 * multiple adapters. 1193 * 1194 * Map the device registers. 1195 */ 1196 qb = (struct qbus *)pcpu->pc_io->io_details; 1197 ioaccess(qb->qb_iopage, UMEMmap[0] + qb->qb_memsize, UBAIOPAGES * NBPG); 1198 1199 /* 1200 * See if the qvss is there. 1201 */ 1202 devptr = (short *)((char *)umem[0] + (qb->qb_memsize * NBPG)); 1203 qvaddr = (struct qvdevice *)((u_int)devptr + ubdevreg(QVSSCSR)); 1204 if (badaddr((caddr_t)qvaddr, sizeof(short))) 1205 return 0; 1206 /* 1207 * Okay the device is there lets set it up 1208 */ 1209 if (!qv_setup(qvaddr, 0, 0)) 1210 return 0; 1211 v_putc = qvputc; 1212 consops = &cdevsw[QVSSMAJOR]; 1213 return 1; 1214 } 1215 /* 1216 * Do the board specific setup 1217 */ 1218 qv_setup(qvaddr, unit, probed) 1219 struct qvdevice *qvaddr; 1220 int unit; 1221 int probed; 1222 { 1223 caddr_t qvssmem; /* pointer to the display mem */ 1224 register i; /* simple index */ 1225 register struct qv_info *qp; 1226 register int *pte; 1227 struct percpu *pcpu; /* pointer to percpu structure */ 1228 register struct qbus *qb; 1229 1230 /* 1231 * find the percpu entry that matches this machine. 1232 */ 1233 for( pcpu = percpu ; pcpu && pcpu->pc_cputype != cpu ; pcpu++ ) 1234 ; 1235 if( pcpu == NULL ) 1236 return(0); 1237 1238 /* 1239 * Found an entry for this cpu. Because this device is Microvax specific 1240 * we assume that there is a single q-bus and don't have to worry about 1241 * multiple adapters. 1242 * 1243 * Map the device memory. 1244 */ 1245 qb = (struct qbus *)pcpu->pc_io->io_details; 1246 1247 i = (u_int)(qvaddr->qv_csr & QV_MEM_BANK) << 7; 1248 ioaccess(qb->qb_maddr + i, QVmap[unit], 512 * NBPG); 1249 qvssmem = qvmem[unit]; 1250 pte = (int *)(QVmap[unit]); 1251 for (i=0; i < 512; i++, pte++) 1252 *pte = (*pte & ~PG_PROT) | PG_UW | PG_V; 1253 1254 qv_scn = (struct qv_info *)((u_int)qvssmem + 251*1024); 1255 qp = qv_scn; 1256 if( (qvaddr->qv_csr & QV_19INCH) && qv_def_scrn == 0) 1257 qv_def_scrn = 1; 1258 *qv_scn = qv_scn_defaults[ qv_def_scrn ]; 1259 if (probed) 1260 qp->qvaddr = qvaddr; 1261 qp->bitmap = qvssmem; 1262 qp->scanmap = (short *)((u_int)qvssmem + 254*1024); 1263 qp->cursorbits = (short *)((u_int)qvssmem + 256*1024-32); 1264 /* set up event queue for later */ 1265 qp->ibuff = (vsEvent *)qp - QVMAXEVQ; 1266 qp->iqsize = QVMAXEVQ; 1267 qp->ihead = qp->itail = 0; 1268 1269 /* 1270 * Setup the crt controller chip. 1271 */ 1272 for( i=0 ; i<16 ; i++ ) { 1273 qvaddr->qv_crtaddr = i; 1274 qvaddr->qv_crtdata = qv_crt_parms[ qv_def_scrn ][ i ]; 1275 } 1276 /* 1277 * Setup the display. 1278 */ 1279 qv_init( qvaddr ); 1280 1281 /* 1282 * Turn on the video 1283 */ 1284 qvaddr->qv_csr |= QV_VIDEO_ENA ; 1285 return 1; 1286 } 1287 #endif 1288