1 /* $NetBSD: qd.c,v 1.36 2006/03/28 17:38:34 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 1988 Regents of the University of California. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)qd.c 7.1 (Berkeley) 6/28/91 32 */ 33 34 /************************************************************************ 35 * * 36 * Copyright (c) 1985-1988 by * 37 * Digital Equipment Corporation, Maynard, MA * 38 * All rights reserved. * 39 * * 40 * This software is furnished under a license and may be used and * 41 * copied only in accordance with the terms of such license and * 42 * with the inclusion of the above copyright notice. This * 43 * software or any other copies thereof may not be provided or * 44 * otherwise made available to any other person. No title to and * 45 * ownership of the software is hereby transferred. * 46 * * 47 * The information in this software is subject to change without * 48 * notice and should not be construed as a commitment by Digital * 49 * Equipment Corporation. * 50 * * 51 * Digital assumes no responsibility for the use or reliability * 52 * of its software on equipment which is not supplied by Digital. * 53 * * 54 *************************************************************************/ 55 56 /* 57 * qd.c - QDSS display driver for VAXSTATION-II GPX workstation 58 */ 59 60 #include <sys/cdefs.h> 61 __KERNEL_RCSID(0, "$NetBSD: qd.c,v 1.36 2006/03/28 17:38:34 thorpej Exp $"); 62 63 #include "opt_ddb.h" 64 65 #include "qd.h" 66 67 #include <sys/param.h> 68 #include <sys/systm.h> 69 #include <sys/conf.h> 70 #include <sys/tty.h> 71 #include <sys/kernel.h> 72 #include <sys/device.h> 73 #include <sys/poll.h> 74 #include <sys/buf.h> 75 76 #include <uvm/uvm_extern.h> 77 78 #include <dev/cons.h> 79 80 #include <machine/bus.h> 81 #include <machine/scb.h> 82 83 #ifdef __vax__ 84 #include <machine/sid.h> 85 #include <machine/cpu.h> 86 #include <machine/pte.h> 87 #endif 88 89 #include <dev/qbus/ubavar.h> 90 91 #include <dev/qbus/qduser.h> 92 #include <dev/qbus/qdreg.h> 93 #include <dev/qbus/qdioctl.h> 94 95 #include "ioconf.h" 96 97 /* 98 * QDSS driver status flags for tracking operational state 99 */ 100 struct qdflags { 101 u_int inuse; /* which minor dev's are in use now */ 102 u_int config; /* I/O page register content */ 103 u_int mapped; /* user mapping status word */ 104 u_int kernel_loop; /* if kernel console is redirected */ 105 u_int user_dma; /* DMA from user space in progress */ 106 u_short pntr_id; /* type code of pointing device */ 107 u_short duart_imask; /* shadowing for duart intrpt mask reg */ 108 u_short adder_ie; /* shadowing for adder intrpt enbl reg */ 109 u_short curs_acc; /* cursor acceleration factor */ 110 u_short curs_thr; /* cursor acceleration threshold level */ 111 u_short tab_res; /* tablet resolution factor */ 112 u_short selmask; /* mask for active qd select entries */ 113 }; 114 115 /* 116 * Softc struct to keep track of all states in this driver. 117 */ 118 struct qd_softc { 119 struct device sc_dev; 120 bus_space_tag_t sc_iot; 121 bus_space_handle_t sc_ioh; 122 bus_dma_tag_t sc_dmat; 123 }; 124 125 /* 126 * bit definitions for 'inuse' entry 127 */ 128 #define CONS_DEV 0x01 129 #define GRAPHIC_DEV 0x04 130 131 /* 132 * bit definitions for 'mapped' member of flag structure 133 */ 134 #define MAPDEV 0x01 /* hardware is mapped */ 135 #define MAPDMA 0x02 /* DMA buffer mapped */ 136 #define MAPEQ 0x04 /* event queue buffer mapped */ 137 #define MAPSCR 0x08 /* scroll param area mapped */ 138 #define MAPCOLOR 0x10 /* color map writing buffer mapped */ 139 140 /* 141 * constants used in shared memory operations 142 */ 143 #define EVENT_BUFSIZE 1024 /* # of bytes per device's event buffer */ 144 #define MAXEVENTS ( (EVENT_BUFSIZE - sizeof(struct qdinput)) \ 145 / sizeof(struct _vs_event) ) 146 #define DMA_BUFSIZ (1024 * 10) 147 #define COLOR_BUFSIZ ((sizeof(struct color_buf) + 512) & ~0x01FF) 148 149 /* 150 * reference to an array of "uba_device" structures built by the auto 151 * configuration program. The uba_device structure decribes the device 152 * sufficiently for the driver to talk to it. The auto configuration code 153 * fills in the uba_device structures (located in ioconf.c) from user 154 * maintained info. 155 */ 156 struct uba_device *qdinfo[NQD]; /* array of pntrs to each QDSS's */ 157 struct tty *qd_tty[NQD*4]; /* teletype structures for each.. */ 158 volatile char *qvmem[NQD]; 159 volatile struct pte *QVmap[NQD]; 160 #define CHUNK (64 * 1024) 161 #define QMEMSIZE (1024 * 1024 * 4) /* 4 meg */ 162 163 /* 164 * static storage used by multiple functions in this code 165 */ 166 int Qbus_unmap[NQD]; /* Qbus mapper release code */ 167 struct qdmap qdmap[NQD]; /* QDSS register map structure */ 168 struct qdflags qdflags[NQD]; /* QDSS register map structure */ 169 caddr_t qdbase[NQD]; /* base address of each QDSS unit */ 170 struct buf qdbuf[NQD]; /* buf structs used by strategy */ 171 short qdopened[NQD]; /* graphics device is open exclusive use */ 172 173 /* 174 * the array "event_shared[]" is made up of a number of event queue buffers 175 * equal to the number of QDSS's configured into the running kernel (NQD). 176 * Each event queue buffer begins with an event queue header (struct qdinput) 177 * followed by a group of event queue entries (struct _vs_event). The array 178 * "*eq_header[]" is an array of pointers to the start of each event queue 179 * buffer in "event_shared[]". 180 */ 181 #define EQSIZE ((EVENT_BUFSIZE * NQD) + 512) 182 183 char event_shared[EQSIZE]; /* reserve space for event bufs */ 184 struct qdinput *eq_header[NQD]; /* event queue header pntrs */ 185 186 /* 187 * This allocation method reserves enough memory pages for NQD shared DMA I/O 188 * buffers. Each buffer must consume an integral number of memory pages to 189 * guarantee that a following buffer will begin on a page boundary. Also, 190 * enough space is allocated so that the FIRST I/O buffer can start at the 191 * 1st page boundary after "&DMA_shared". Page boundaries are used so that 192 * memory protections can be turned on/off for individual buffers. 193 */ 194 #define IOBUFSIZE ((DMA_BUFSIZ * NQD) + 512) 195 196 char DMA_shared[IOBUFSIZE]; /* reserve I/O buffer space */ 197 struct DMAreq_header *DMAheader[NQD]; /* DMA buffer header pntrs */ 198 199 /* 200 * The driver assists a client in scroll operations by loading dragon 201 * registers from an interrupt service routine. The loading is done using 202 * parameters found in memory shrade between the driver and it's client. 203 * The scroll parameter structures are ALL loacted in the same memory page 204 * for reasons of memory economy. 205 */ 206 char scroll_shared[2 * 512]; /* reserve space for scroll structs */ 207 struct scroll *scroll[NQD]; /* pointers to scroll structures */ 208 209 /* 210 * the driver is programmable to provide the user with color map write 211 * services at VSYNC interrupt time. At interrupt time the driver loads 212 * the color map with any user-requested load data found in shared memory 213 */ 214 #define COLOR_SHARED ((COLOR_BUFSIZ * NQD) + 512) 215 216 char color_shared[COLOR_SHARED]; /* reserve space: color bufs */ 217 struct color_buf *color_buf[NQD]; /* pointers to color bufs */ 218 219 /* 220 * mouse input event structures 221 */ 222 struct mouse_report last_rep[NQD]; 223 struct mouse_report current_rep[NQD]; 224 225 struct selinfo qdrsel[NQD]; /* process waiting for select */ 226 struct _vs_cursor cursor[NQD]; /* console cursor */ 227 int qdcount = 0; /* count of successfully probed qd's */ 228 int nNQD = NQD; 229 int DMAbuf_size = DMA_BUFSIZ; 230 int QDlast_DMAtype; /* type of the last DMA operation */ 231 232 /* 233 * macro to get system time. Used to time stamp event queue entries 234 */ 235 #define TOY ((time.tv_sec * 100) + (time.tv_usec / 10000)) 236 237 void qd_attach(struct device *, struct device *, void *); 238 static int qd_match(struct device *, struct cfdata *, void *); 239 240 static void qddint(void *); /* DMA gate array intrpt service */ 241 static void qdaint(void *); /* Dragon ADDER intrpt service */ 242 static void qdiint(void *); 243 244 #define QDPRIOR (PZERO-1) /* must be negative */ 245 #define FALSE 0 246 #ifdef TRUE 247 #undef TRUE 248 #endif 249 #define TRUE ~FALSE 250 #define BAD -1 251 #define GOOD 0 252 253 /* 254 * macro to create a system virtual page number from system virtual adrs 255 */ 256 #define VTOP(x) (((int)x & ~0xC0000000) >> VAX_PGSHIFT) 257 258 /* 259 * QDSS register address offsets from start of QDSS address space 260 */ 261 #define QDSIZE (52 * 1024) /* size of entire QDSS foot print */ 262 #define TMPSIZE (16 * 1024) /* template RAM is 8k SHORT WORDS */ 263 #define TMPSTART 0x8000 /* offset of template RAM from base adrs */ 264 #define REGSIZE (5 * 512) /* regs touch 2.5k (5 pages) of addr space */ 265 #define REGSTART 0xC000 /* offset of reg pages from base adrs */ 266 #define ADDER (REGSTART+0x000) 267 #define DGA (REGSTART+0x200) 268 #define DUART (REGSTART+0x400) 269 #define MEMCSR (REGSTART+0x800) 270 #define CLRSIZE (3 * 512) /* color map size */ 271 #define CLRSTART (REGSTART+0xA00) /* color map start offset from base */ 272 /* 0x0C00 really */ 273 #define RED (CLRSTART+0x000) 274 #define BLUE (CLRSTART+0x200) 275 #define GREEN (CLRSTART+0x400) 276 277 278 /* 279 * QDSS minor device numbers. The *real* minor device numbers are in 280 * the bottom two bits of the major/minor device spec. Bits 2 and up are 281 * used to specify the QDSS device number (ie: which one?) 282 */ 283 284 #define CONS 0 285 #define GRAPHIC 2 286 287 /* 288 * console cursor bitmap (white block cursor) 289 */ 290 short cons_cursor[32] = { 291 /* A */ 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 292 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 293 /* B */ 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 294 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF 295 }; 296 297 /* 298 * constants used in font operations 299 */ 300 #define CHARS 190 /* # of chars in the font */ 301 #define CHAR_HEIGHT 15 /* char height in pixels */ 302 #define CHAR_WIDTH 8 /* char width in pixels*/ 303 #define FONT_WIDTH (CHAR_WIDTH * CHARS) /* font width in pixels */ 304 #define ROWS CHAR_HEIGHT 305 #define FONT_X 0 /* font's off screen adrs */ 306 #define FONT_Y (2048 - CHAR_HEIGHT) 307 308 /* Offset to second row characters (XXX - should remove) */ 309 #define FONT_OFFSET ((MAX_SCREEN_X/CHAR_WIDTH)*CHAR_HEIGHT) 310 311 extern char q_font[]; /* reference font object code */ 312 extern u_short q_key[]; /* reference key xlation tables */ 313 extern u_short q_shift_key[]; 314 extern char *q_special[]; 315 316 /* 317 * definitions for cursor acceleration reporting 318 */ 319 #define ACC_OFF 0x01 /* acceleration is inactive */ 320 321 /* 322 * virtual console support. 323 */ 324 extern struct cdevsw *consops; 325 cons_decl(qd); 326 void setup_dragon(int); 327 void init_shared(int); 328 void clear_qd_screen(int); 329 void ldfont(int); 330 void ldcursor(int, short *); 331 void setup_input(int); 332 void blitc(int, u_char); 333 void scroll_up(volatile struct adder *); 334 void write_ID(volatile struct adder *, short, short); 335 int wait_status(volatile struct adder *, int); 336 void led_control(int, int, int); 337 void qdstart(struct tty *); 338 void qdearly(void); 339 int qdpolling = 0; 340 341 dev_type_open(qdopen); 342 dev_type_close(qdclose); 343 dev_type_read(qdread); 344 dev_type_write(qdwrite); 345 dev_type_ioctl(qdioctl); 346 dev_type_stop(qdstop); 347 dev_type_poll(qdpoll); 348 dev_type_kqfilter(qdkqfilter); 349 350 const struct cdevsw qd_cdevsw = { 351 qdopen, qdclose, qdread, qdwrite, qdioctl, 352 qdstop, notty, qdpoll, nommap, qdkqfilter, 353 }; 354 355 /* 356 * LK-201 state storage for input console keyboard conversion to ASCII 357 */ 358 struct q_keyboard { 359 int shift; /* state variables */ 360 int cntrl; 361 int lock; 362 int lastcode; /* last keycode typed */ 363 unsigned kup[8]; /* bits for each keycode*/ 364 unsigned dkeys[8]; /* down/up mode keys */ 365 char last; /* last character */ 366 } q_keyboard; 367 368 /* 369 * tty settings on first open 370 */ 371 #define IFLAG (BRKINT|ISTRIP|IXON|IXANY|ICRNL|IMAXBEL) 372 #define OFLAG (OPOST|OXTABS|ONLCR) 373 #define LFLAG (ISIG|ICANON|ECHO|IEXTEN) 374 #define CFLAG (PARENB|CREAD|CS7|CLOCAL) 375 376 /* 377 * Kernel virtual addresses where we can map in the QBUS io page and the 378 * QDSS memory during qdcninit. pmap_bootstrap fills this in. 379 */ 380 void *qd_ubaio; 381 382 /* This is the QDSS unit 0 CSR. It is hard-coded in here so that the 383 * QDSS can be used as the console. The console routines don't get 384 * any config info. The ROM also autodetects at this address, so 385 * the console QDSS should be at this address. Furthermore, nothing 386 * else shuld be at this address instead because that would confuse the 387 * ROM and this driver. 388 */ 389 #define QDSSCSR 0x1F00 390 391 volatile u_short *qdaddr; /* Virtual address for QDSS CSR */ 392 393 /* 394 * This flag is set to 1 if the console initialization (qdcninit) 395 * has been performed on qd0. That initialization is required and must 396 * be done before the device probe routine. 397 */ 398 int qd0cninited = 0, qd0iscons = 0; 399 400 /* 401 * Do early check if the qdss is console. If not; don't allocate 402 * any memory for it in bootstrap. 403 */ 404 void 405 qdearly() 406 { 407 extern vaddr_t virtual_avail; 408 int tmp; 409 410 /* Make sure we're running on a system that can have a QDSS */ 411 if (vax_boardtype == VAX_BTYP_630) { 412 /* Now check some undocumented flag */ 413 if ((*(int *)(0x200B801E) & 0x60) == 0) 414 /* The KA630 isn't using a QDSS as the console, 415 * so we won't either */ 416 return; 417 } else if (vax_boardtype != VAX_BTYP_650) 418 return; 419 420 /* How to check for console on KA650? We assume that if there is a 421 * QDSS, it is console. 422 */ 423 #define QIOPAGE 0x20000000 /* XXX */ 424 #define UBAIOPAGES 16 425 tmp = QIOPAGE + ubdevreg(QDSSCSR); 426 if (badaddr((caddr_t)tmp, sizeof(short))) 427 return; 428 429 MAPVIRT(qvmem[0], 64 * 1024 * NQD / VAX_NBPG); 430 MAPVIRT(qd_ubaio, 16); 431 pmap_map((int)qd_ubaio, QIOPAGE, QIOPAGE + UBAIOPAGES * VAX_NBPG, 432 VM_PROT_READ|VM_PROT_WRITE); 433 qdaddr = (u_short *)((u_int)qd_ubaio + ubdevreg(QDSSCSR)); 434 qd0iscons = 1; 435 } 436 437 void 438 qdcnprobe(cndev) 439 struct consdev *cndev; 440 { 441 int i; 442 443 cndev->cn_pri = CN_DEAD; 444 445 if (mfpr(PR_MAPEN) == 0) 446 return; /* Cannot use qd if vm system is OFF */ 447 448 if (!qd0iscons) 449 return; 450 451 /* Find the console device corresponding to the console QDSS */ 452 cndev->cn_dev = makedev(cdevsw_lookup_major(&qd_cdevsw), 0); 453 cndev->cn_pri = CN_INTERNAL; 454 return; 455 } 456 457 458 /* 459 * Init QDSS as console (before probe routine) 460 */ 461 void 462 qdcninit(cndev) 463 struct consdev *cndev; 464 { 465 caddr_t phys_adr; /* physical QDSS base adrs */ 466 u_int mapix; /* index into QVmap[] array */ 467 int unit; 468 469 /* qdaddr must point to CSR for this unit! */ 470 471 /* The console QDSS is QDSS unit 0 */ 472 unit = 0; 473 474 /* 475 * Map q-bus memory used by qdss. (separate map) 476 */ 477 mapix = QMEMSIZE - (CHUNK * (unit + 1)); 478 #define QMEM 0x30000000 479 (int)phys_adr = QMEM + mapix; 480 pmap_map((int)(qvmem[0]), (int)phys_adr, (int)(phys_adr + (CHUNK*NQD)), 481 VM_PROT_READ|VM_PROT_WRITE); 482 483 /* 484 * Set QVmap to point to page table entries for what we just 485 * mapped. 486 */ 487 QVmap[0] = (struct pte *)kvtopte(qvmem[0]); 488 489 /* 490 * tell QDSS which Q memory address base to decode 491 * (shifted right 16 bits - its in 64K units) 492 */ 493 *qdaddr = (u_short)((int)mapix >> 16); 494 qdflags[unit].config = *(u_short *)qdaddr; 495 496 /* 497 * load qdmap struct with the virtual addresses of the QDSS elements 498 */ 499 qdbase[unit] = (caddr_t) (qvmem[0]); 500 qdmap[unit].template = qdbase[unit] + TMPSTART; 501 qdmap[unit].adder = qdbase[unit] + ADDER; 502 qdmap[unit].dga = qdbase[unit] + DGA; 503 qdmap[unit].duart = qdbase[unit] + DUART; 504 qdmap[unit].memcsr = qdbase[unit] + MEMCSR; 505 qdmap[unit].red = qdbase[unit] + RED; 506 qdmap[unit].blue = qdbase[unit] + BLUE; 507 qdmap[unit].green = qdbase[unit] + GREEN; 508 509 qdflags[unit].duart_imask = 0; /* init shadow variables */ 510 511 /* 512 * init the QDSS 513 */ 514 515 *(short *)qdmap[unit].memcsr |= SYNC_ON; /* once only: turn on sync */ 516 517 cursor[unit].x = 0; 518 cursor[unit].y = 0; 519 init_shared(unit); /* init shared memory */ 520 setup_dragon(unit); /* init the ADDER/VIPER stuff */ 521 clear_qd_screen(unit); /* clear the screen */ 522 ldfont(unit); /* load the console font */ 523 ldcursor(unit, cons_cursor); /* load default cursor map */ 524 setup_input(unit); /* init the DUART */ 525 526 /* Set flag so probe knows */ 527 qd0cninited = 1; 528 } /* qdcninit */ 529 530 /* see <sys/device.h> */ 531 CFATTACH_DECL(qd, sizeof(struct qd_softc), 532 qd_match, qd_attach, NULL, NULL); 533 534 #define QD_RCSR(reg) \ 535 bus_space_read_2(sc->sc_iot, sc->sc_ioh, reg) 536 #define QD_WCSR(reg, val) \ 537 bus_space_write_2(sc->sc_iot, sc->sc_ioh, reg, val) 538 539 /* 540 * Configure QDSS into Q memory and make it intrpt. 541 * 542 * side effects: QDSS gets mapped into Qbus memory space at the first 543 * vacant 64kb boundary counting back from the top of 544 * Qbus memory space (qvmem+4mb) 545 * 546 * return: QDSS bus request level and vector address returned in 547 * registers by UNIX convention. 548 * 549 */ 550 static int 551 qd_match(parent, match, aux) 552 struct device *parent; 553 struct cfdata *match; 554 void *aux; 555 { 556 struct qd_softc ssc; 557 struct qd_softc *sc = &ssc; 558 struct uba_attach_args *ua = aux; 559 struct uba_softc *uh = (void *)parent; 560 int unit; 561 volatile struct dga *dga; /* pointer to gate array structure */ 562 int vector; 563 #ifdef notdef 564 int *ptep; /* page table entry pointer */ 565 caddr_t phys_adr; /* physical QDSS base adrs */ 566 u_int mapix; 567 #endif 568 569 /* Create a "fake" softc with only a few fields used. */ 570 sc->sc_iot = ua->ua_iot; 571 sc->sc_ioh = ua->ua_ioh; 572 sc->sc_dmat = ua->ua_dmat; 573 /* 574 * calculate board unit number from I/O page register address 575 */ 576 unit = (int) (((int)sc->sc_ioh >> 1) & 0x0007); 577 578 /* 579 * QDSS regs must be mapped to Qbus memory space at a 64kb 580 * physical boundary. The Qbus memory space is mapped into 581 * the system memory space at config time. After config 582 * runs, "qvmem[0]" (ubavar.h) holds the system virtual adrs 583 * of the start of Qbus memory. The Qbus memory page table 584 * is found via an array of pte ptrs called "QVmap[]" (ubavar.h) 585 * which is also loaded at config time. These are the 586 * variables used below to find a vacant 64kb boundary in 587 * Qbus memory, and load it's corresponding physical adrs 588 * into the QDSS's I/O page CSR. 589 */ 590 591 /* 592 * Only if QD is the graphics device. 593 */ 594 595 /* if this QDSS is NOT the console, then do init here.. */ 596 597 if (unit != 0) { 598 printf("qd: can't support two qdss's (yet)\n"); 599 #ifdef notdef /* can't test */ 600 if (v_consputc != qdputc || unit != 0) { 601 602 /* 603 * read QDSS config info 604 */ 605 qdflags[unit].config = *(u_short *)reg; 606 607 /* 608 * find an empty 64kb adrs boundary 609 */ 610 611 qdbase[unit] = (caddr_t) (qvmem[0] + QMEMSIZE - CHUNK); 612 613 /* 614 * find the cpusw entry that matches this machine. 615 */ 616 cpup = &cpusw[cpu]; 617 while (!(BADADDR(qdbase[unit], sizeof(short)))) 618 qdbase[unit] -= CHUNK; 619 620 /* 621 * tell QDSS which Q memory address base to decode 622 */ 623 mapix = (int) (VTOP(qdbase[unit]) - VTOP(qvmem[0])); 624 ptep = (int *) QVmap[0] + mapix; 625 phys_adr = (caddr_t)(((int)*ptep&0x001FFFFF)<<VAX_PGSHIFT); 626 *(u_short *)reg = (u_short) ((int)phys_adr >> 16); 627 628 /* 629 * load QDSS adrs map with system addresses 630 * of device regs 631 */ 632 qdmap[unit].template = qdbase[unit] + TMPSTART; 633 qdmap[unit].adder = qdbase[unit] + ADDER; 634 qdmap[unit].dga = qdbase[unit] + DGA; 635 qdmap[unit].duart = qdbase[unit] + DUART; 636 qdmap[unit].memcsr = qdbase[unit] + MEMCSR; 637 qdmap[unit].red = qdbase[unit] + RED; 638 qdmap[unit].blue = qdbase[unit] + BLUE; 639 qdmap[unit].green = qdbase[unit] + GREEN; 640 641 /* device init */ 642 643 cursor[unit].x = 0; 644 cursor[unit].y = 0; 645 init_shared(unit); /* init shared memory */ 646 setup_dragon(unit); /* init the ADDER/VIPER stuff */ 647 ldcursor(unit, cons_cursor); /* load default cursor map */ 648 setup_input(unit); /* init the DUART */ 649 clear_qd_screen(unit); 650 ldfont(unit); /* load the console font */ 651 652 /* once only: turn on sync */ 653 654 *(short *)qdmap[unit].memcsr |= SYNC_ON; 655 } 656 #endif /*notdef*/ 657 } else { 658 /* We are dealing with qd0 */ 659 660 if (!qd0cninited) { 661 /* 662 * qd0 has not been initiallized as the console. 663 * We need to do some initialization now 664 * 665 * XXX 666 * However, if the QDSS is not the console then 667 * that stupid undocumented bit (see qdcnprobe) 668 * is cleared. Then the QDSS refuses to work. 669 * (What did the ROM do to it!?) 670 * XXX 671 */ 672 return 0; 673 674 #if 0 675 qdaddr = (void *)reg; 676 677 /* Lame probe for QDSS. Should be ok for qd0 */ 678 if (badaddr((caddr_t)qdaddr, sizeof(short))) 679 return 0; 680 681 qdcninit(NULL); 682 #endif 683 } 684 } 685 686 687 /* 688 * The QDSS interrupts at HEX vectors xx0 (DMA) xx4 689 * (ADDER) and xx8 (DUART). Therefore, we take three 690 * vectors from the vector pool, and then continue 691 * to take them until we get a xx0 HEX vector. The 692 * pool provides vectors in contiguous decending 693 * order. 694 */ 695 696 vector = (uh->uh_lastiv -= 4*3); /* take three vectors */ 697 698 while (vector & 0x0F) { /* if lo nibble != 0.. */ 699 /* ..take another vector */ 700 vector = (uh->uh_lastiv -= 4); 701 } 702 703 /* 704 * setup DGA to do a DMA interrupt (transfer count = 0) 705 */ 706 dga = (struct dga *) qdmap[unit].dga; 707 dga->csr = (short) HALT; /* disable everything */ 708 dga->ivr = (short) vector; /* load intrpt base vector */ 709 dga->bytcnt_lo = (short) 0; /* DMA xfer count = 0 */ 710 dga->bytcnt_hi = (short) 0; 711 712 /* 713 * turn on DMA interrupts 714 */ 715 dga->csr &= ~SET_DONE_FIFO; 716 dga->csr |= DMA_IE | DL_ENB; 717 718 DELAY(20000); /* wait for the intrpt */ 719 dga->csr = HALT; /* stop the wheels */ 720 721 /* 722 * score this as an existing qdss 723 */ 724 qdcount++; 725 726 return 1; 727 } /* qdprobe */ 728 729 730 void qd_attach(parent, self, aux) 731 struct device *parent, *self; 732 void *aux; 733 { 734 struct uba_attach_args *ua = aux; 735 int unit; /* QDSS module # for this call */ 736 737 printf("\n"); 738 739 unit = device_unit(self); /* get QDSS number */ 740 741 /* Set interrupt vectors for interrupt handlers */ 742 743 uba_intr_establish(ua->ua_icookie, ua->ua_cvec , qddint, self); 744 uba_intr_establish(ua->ua_icookie, ua->ua_cvec + 4, qdaint, self); 745 uba_intr_establish(ua->ua_icookie, ua->ua_cvec + 8, qdiint, self); 746 747 /* 748 * init "qdflags[]" for this QDSS 749 */ 750 qdflags[unit].inuse = 0; /* init inuse variable EARLY! */ 751 qdflags[unit].mapped = 0; 752 qdflags[unit].kernel_loop = -1; 753 qdflags[unit].user_dma = 0; 754 qdflags[unit].curs_acc = ACC_OFF; 755 qdflags[unit].curs_thr = 128; 756 qdflags[unit].tab_res = 2; /* default tablet resolution factor */ 757 qdflags[unit].duart_imask = 0; /* init shadow variables */ 758 qdflags[unit].adder_ie = 0; 759 760 /* 761 * init structures used in kbd/mouse interrupt service. This code must 762 * come after the "init_shared()" routine has run since that routine 763 * inits the eq_header[unit] structure used here. 764 */ 765 766 /* 767 * init the "latest mouse report" structure 768 */ 769 last_rep[unit].state = 0; 770 last_rep[unit].dx = 0; 771 last_rep[unit].dy = 0; 772 last_rep[unit].bytcnt = 0; 773 774 /* 775 * init the event queue (except mouse position) 776 */ 777 eq_header[unit]->header.events = 778 (struct _vs_event *)((int)eq_header[unit] + sizeof(struct qdinput)); 779 780 eq_header[unit]->header.size = MAXEVENTS; 781 eq_header[unit]->header.head = 0; 782 eq_header[unit]->header.tail = 0; 783 784 /* 785 * open exclusive for graphics device. 786 */ 787 qdopened[unit] = 0; 788 789 } /* qdattach */ 790 791 792 /*ARGSUSED*/ 793 int 794 qdopen(dev, flag, mode, p) 795 dev_t dev; 796 int flag, mode; 797 struct proc *p; 798 { 799 volatile struct dga *dga; /* ptr to gate array struct */ 800 struct tty *tp; 801 volatile struct duart *duart; 802 int unit; 803 int minor_dev; 804 805 minor_dev = minor(dev); /* get QDSS minor device number */ 806 unit = minor_dev >> 2; 807 808 /* 809 * check for illegal conditions 810 */ 811 if (unit >= qd_cd.cd_ndevs || qd_cd.cd_devs[unit] == NULL) 812 return (ENXIO); /* no such device or address */ 813 814 duart = (struct duart *) qdmap[unit].duart; 815 dga = (struct dga *) qdmap[unit].dga; 816 817 if ((minor_dev & 0x03) == 2) { 818 /* 819 * this is the graphic device... 820 */ 821 if (qdopened[unit] != 0) 822 return(EBUSY); 823 else 824 qdopened[unit] = 1; 825 qdflags[unit].inuse |= GRAPHIC_DEV; /* graphics dev is open */ 826 /* 827 * enble kbd & mouse intrpts in DUART mask reg 828 */ 829 qdflags[unit].duart_imask |= 0x22; 830 duart->imask = qdflags[unit].duart_imask; 831 } else { 832 /* Only one console */ 833 if (minor_dev) return ENXIO; 834 835 /* If not done already, allocate tty structure */ 836 if (qd_tty[minor_dev] == NULL) 837 qd_tty[minor_dev] = ttymalloc(); 838 839 if (qd_tty[minor_dev] == NULL) 840 return ENXIO; 841 842 /* 843 * this is the console 844 */ 845 qdflags[unit].inuse |= CONS_DEV; /* mark console as open */ 846 dga->csr |= CURS_ENB; 847 qdflags[unit].duart_imask |= 0x02; 848 duart->imask = qdflags[unit].duart_imask; 849 /* 850 * some setup for tty handling 851 */ 852 tp = qd_tty[minor_dev]; 853 /* tp->t_addr = ui->ui_addr; */ 854 tp->t_oproc = qdstart; 855 tp->t_dev = dev; 856 if ((tp->t_state & TS_ISOPEN) == 0) { 857 ttychars(tp); 858 tp->t_ispeed = B9600; 859 tp->t_ospeed = B9600; 860 tp->t_state = TS_ISOPEN | TS_CARR_ON; 861 tp->t_iflag = TTYDEF_IFLAG; 862 tp->t_oflag = TTYDEF_OFLAG; 863 tp->t_lflag = TTYDEF_LFLAG; 864 tp->t_cflag = TTYDEF_CFLAG; 865 ttsetwater(tp); 866 } 867 /* 868 * enable intrpts, open line discipline 869 */ 870 dga->csr |= GLOBAL_IE; /* turn on the interrupts */ 871 return ((*tp->t_linesw->l_open)(dev, tp)); 872 } 873 dga->csr |= GLOBAL_IE; /* turn on the interrupts */ 874 return(0); 875 876 } /* qdopen */ 877 878 /*ARGSUSED*/ 879 int 880 qdclose(dev, flag, mode, p) 881 dev_t dev; 882 int flag, mode; 883 struct proc *p; 884 { 885 struct tty *tp; 886 struct qdmap *qd; 887 volatile int *ptep; 888 volatile struct dga *dga; /* gate array register map pointer */ 889 volatile struct duart *duart; 890 volatile struct adder *adder; 891 int unit; 892 int minor_dev; 893 u_int mapix; 894 int i; /* SIGNED index */ 895 struct uba_softc *uh; 896 897 minor_dev = minor(dev); /* get minor device number */ 898 unit = minor_dev >> 2; /* get QDSS number */ 899 qd = &qdmap[unit]; 900 901 uh = (struct uba_softc *) 902 device_parent((struct device *)(qd_cd.cd_devs[unit])); 903 904 905 if ((minor_dev & 0x03) == 2) { 906 /* 907 * this is the graphic device... 908 */ 909 if (qdopened[unit] != 1) 910 return(EBUSY); 911 else 912 qdopened[unit] = 0; /* allow it to be re-opened */ 913 /* 914 * re-protect device memory 915 */ 916 if (qdflags[unit].mapped & MAPDEV) { 917 /* 918 * TEMPLATE RAM 919 */ 920 mapix = VTOP((int)qd->template) - VTOP(qvmem[0]); 921 ptep = (int *)(QVmap[0] + mapix); 922 for (i = 0; i < vax_btop(TMPSIZE); i++, ptep++) 923 *ptep = (*ptep & ~PG_PROT) | PG_V | PG_KW; 924 /* 925 * ADDER 926 */ 927 mapix = VTOP((int)qd->adder) - VTOP(qvmem[0]); 928 ptep = (int *)(QVmap[0] + mapix); 929 for (i = 0; i < vax_btop(REGSIZE); i++, ptep++) 930 *ptep = (*ptep & ~PG_PROT) | PG_V | PG_KW; 931 /* 932 * COLOR MAPS 933 */ 934 mapix = VTOP((int)qd->red) - VTOP(qvmem[0]); 935 ptep = (int *)(QVmap[0] + mapix); 936 for (i = 0; i < vax_btop(CLRSIZE); i++, ptep++) 937 *ptep = (*ptep & ~PG_PROT) | PG_V | PG_KW; 938 } 939 940 /* 941 * re-protect DMA buffer and free the map registers 942 */ 943 if (qdflags[unit].mapped & MAPDMA) { 944 panic("Unmapping unmapped buffer"); 945 #ifdef notyet 946 /* 947 * Ragge 990620: 948 * Can't happen because the buffer can't be mapped. 949 */ 950 dga = (struct dga *) qdmap[unit].dga; 951 adder = (struct adder *) qdmap[unit].adder; 952 dga->csr &= ~DMA_IE; 953 dga->csr &= ~0x0600; /* kill DMA */ 954 adder->command = CANCEL; 955 /* 956 * if DMA was running, flush spurious intrpt 957 */ 958 if (dga->bytcnt_lo != 0) { 959 dga->bytcnt_lo = 0; 960 dga->bytcnt_hi = 0; 961 DMA_SETIGNORE(DMAheader[unit]); 962 dga->csr |= DMA_IE; 963 dga->csr &= ~DMA_IE; 964 } 965 ptep = (int *) 966 ((VTOP(DMAheader[unit]*4)) + (mfpr(PR_SBR)|0x80000000)); 967 for (i = 0; i < vax_btop(DMAbuf_size); i++, ptep++) 968 *ptep = (*ptep & ~PG_PROT) | PG_V | PG_KW; 969 ubarelse(uh, &Qbus_unmap[unit]); 970 #endif 971 } 972 973 /* 974 * re-protect 1K (2 pages) event queue 975 */ 976 if (qdflags[unit].mapped & MAPEQ) { 977 ptep = (int *) 978 ((VTOP(eq_header[unit])*4) + (mfpr(PR_SBR)|0x80000000)); 979 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; ptep++; 980 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; 981 } 982 /* 983 * re-protect scroll param area and disable scroll intrpts 984 */ 985 if (qdflags[unit].mapped & MAPSCR) { 986 ptep = (int *) ((VTOP(scroll[unit]) * 4) 987 + (mfpr(PR_SBR) | 0x80000000)); 988 /* 989 * re-protect 512 scroll param area 990 */ 991 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; 992 adder = (struct adder *) qdmap[unit].adder; 993 qdflags[unit].adder_ie &= ~FRAME_SYNC; 994 adder->interrupt_enable = qdflags[unit].adder_ie; 995 } 996 /* 997 * re-protect color map write buffer area and kill intrpts 998 */ 999 if (qdflags[unit].mapped & MAPCOLOR) { 1000 ptep = (int *) ((VTOP(color_buf[unit]) * 4) 1001 + (mfpr(PR_SBR) | 0x80000000)); 1002 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; ptep++; 1003 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; 1004 color_buf[unit]->status = 0; 1005 adder = (struct adder *) qdmap[unit].adder; 1006 qdflags[unit].adder_ie &= ~VSYNC; 1007 adder->interrupt_enable = qdflags[unit].adder_ie; 1008 } 1009 mtpr(0, PR_TBIA); 1010 /* flag everything now unmapped */ 1011 qdflags[unit].mapped = 0; 1012 qdflags[unit].inuse &= ~GRAPHIC_DEV; 1013 qdflags[unit].curs_acc = ACC_OFF; 1014 qdflags[unit].curs_thr = 128; 1015 /* 1016 * restore the console 1017 */ 1018 dga = (struct dga *) qdmap[unit].dga; 1019 adder = (struct adder *) qdmap[unit].adder; 1020 dga->csr &= ~DMA_IE; 1021 dga->csr &= ~0x0600; /* halt the DMA! (just in case...) */ 1022 dga->csr |= DMA_ERR; /* clear error condition */ 1023 adder->command = CANCEL; 1024 /* 1025 * if DMA was running, flush spurious intrpt 1026 */ 1027 if (dga->bytcnt_lo != 0) { 1028 dga->bytcnt_lo = 0; 1029 dga->bytcnt_hi = 0; 1030 DMA_SETIGNORE(DMAheader[unit]); 1031 dga->csr |= DMA_IE; 1032 dga->csr &= ~DMA_IE; 1033 } 1034 init_shared(unit); /* init shared memory */ 1035 setup_dragon(unit); /* init ADDER/VIPER */ 1036 ldcursor(unit, cons_cursor); /* load default cursor map */ 1037 setup_input(unit); /* init the DUART */ 1038 ldfont(unit); 1039 cursor[unit].x = 0; 1040 cursor[unit].y = 0; 1041 /* 1042 * shut off the mouse rcv intrpt and turn on kbd intrpts 1043 */ 1044 duart = (struct duart *) qdmap[unit].duart; 1045 qdflags[unit].duart_imask &= ~(0x20); 1046 qdflags[unit].duart_imask |= 0x02; 1047 duart->imask = qdflags[unit].duart_imask; 1048 /* 1049 * shut off interrupts if all is closed 1050 */ 1051 if (!(qdflags[unit].inuse & CONS_DEV)) { 1052 dga = (struct dga *) qdmap[unit].dga; 1053 dga->csr &= ~(GLOBAL_IE | DMA_IE); 1054 } 1055 } else { 1056 /* 1057 * this is the console 1058 */ 1059 tp = qd_tty[minor_dev]; 1060 (*tp->t_linesw->l_close)(tp, flag); 1061 ttyclose(tp); 1062 tp->t_state = 0; 1063 qdflags[unit].inuse &= ~CONS_DEV; 1064 /* 1065 * if graphics device is closed, kill interrupts 1066 */ 1067 if (!(qdflags[unit].inuse & GRAPHIC_DEV)) { 1068 dga = (struct dga *) qdmap[unit].dga; 1069 dga->csr &= ~(GLOBAL_IE | DMA_IE); 1070 } 1071 } 1072 1073 return(0); 1074 1075 } /* qdclose */ 1076 1077 int 1078 qdioctl(dev, cmd, datap, flags, p) 1079 dev_t dev; 1080 u_long cmd; 1081 caddr_t datap; 1082 int flags; 1083 struct proc *p; 1084 { 1085 volatile int *ptep; /* page table entry pointer */ 1086 int mapix; /* QVmap[] page table index */ 1087 struct _vs_event *event; 1088 struct tty *tp; 1089 int i; 1090 struct qdmap *qd; /* pointer to device map struct */ 1091 volatile struct dga *dga; /* Gate Array reg structure pntr */ 1092 volatile struct duart *duart; /* DUART reg structure pointer */ 1093 volatile struct adder *adder; /* ADDER reg structure pointer */ 1094 struct prgkbd *cmdbuf; 1095 struct prg_cursor *curs; 1096 struct _vs_cursor *pos; 1097 int unit = minor(dev) >> 2; /* number of caller's QDSS */ 1098 u_int minor_dev = minor(dev); 1099 int error; 1100 int s; 1101 short *temp; /* a pointer to template RAM */ 1102 struct uba_softc *uh; 1103 1104 uh = (struct uba_softc *) 1105 device_parent((struct device *)(qd_cd.cd_devs[unit])); 1106 1107 /* 1108 * service graphic device ioctl commands 1109 */ 1110 switch (cmd) { 1111 1112 case QD_GETEVENT: 1113 /* 1114 * extract the oldest event from the event queue 1115 */ 1116 if (ISEMPTY(eq_header[unit])) { 1117 event = (struct _vs_event *) datap; 1118 event->vse_device = VSE_NULL; 1119 break; 1120 } 1121 event = (struct _vs_event *) GETBEGIN(eq_header[unit]); 1122 s = spl5(); 1123 GETEND(eq_header[unit]); 1124 splx(s); 1125 bcopy((caddr_t)event, datap, sizeof(struct _vs_event)); 1126 break; 1127 1128 case QD_RESET: 1129 /* 1130 * init the dragon stuff, DUART, and driver variables 1131 */ 1132 init_shared(unit); /* init shared memory */ 1133 setup_dragon(unit); /* init the ADDER/VIPER stuff */ 1134 clear_qd_screen(unit); 1135 ldcursor(unit, cons_cursor); /* load default cursor map */ 1136 ldfont(unit); /* load the console font */ 1137 setup_input(unit); /* init the DUART */ 1138 break; 1139 1140 case QD_SET: 1141 /* 1142 * init the DUART and driver variables 1143 */ 1144 init_shared(unit); 1145 setup_input(unit); 1146 break; 1147 1148 case QD_CLRSCRN: 1149 /* 1150 * clear the QDSS screen. (NOTE that this reinits the dragon) 1151 */ 1152 #ifdef notdef /* has caused problems and isn't necessary */ 1153 setup_dragon(unit); 1154 clear_qd_screen(unit); 1155 #endif 1156 break; 1157 1158 case QD_WTCURSOR: 1159 /* 1160 * load a cursor into template RAM 1161 */ 1162 ldcursor(unit, (short *)datap); 1163 break; 1164 1165 case QD_RDCURSOR: 1166 1167 temp = (short *) qdmap[unit].template; 1168 /* 1169 * cursor is 32 WORDS from the end of the 8k WORD... 1170 * ...template space 1171 */ 1172 temp += (8 * 1024) - 32; 1173 for (i = 0; i < 32; ++i, datap += sizeof(short)) 1174 *(short *)datap = *temp++; 1175 break; 1176 1177 case QD_POSCURSOR: 1178 /* 1179 * position the mouse cursor 1180 */ 1181 dga = (struct dga *) qdmap[unit].dga; 1182 pos = (struct _vs_cursor *) datap; 1183 s = spl5(); 1184 dga->x_cursor = TRANX(pos->x); 1185 dga->y_cursor = TRANY(pos->y); 1186 eq_header[unit]->curs_pos.x = pos->x; 1187 eq_header[unit]->curs_pos.y = pos->y; 1188 splx(s); 1189 break; 1190 1191 case QD_PRGCURSOR: 1192 /* 1193 * set the cursor acceleration factor 1194 */ 1195 curs = (struct prg_cursor *) datap; 1196 s = spl5(); 1197 qdflags[unit].curs_acc = curs->acc_factor; 1198 qdflags[unit].curs_thr = curs->threshold; 1199 splx(s); 1200 break; 1201 1202 case QD_MAPDEVICE: 1203 /* 1204 * enable 'user write' to device pages 1205 */ 1206 qdflags[unit].mapped |= MAPDEV; 1207 qd = (struct qdmap *) &qdmap[unit]; 1208 /* 1209 * enable user write to template RAM 1210 */ 1211 mapix = VTOP((int)qd->template) - VTOP(qvmem[0]); 1212 ptep = (int *)(QVmap[0] + mapix); 1213 for (i = 0; i < vax_btop(TMPSIZE); i++, ptep++) 1214 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1215 1216 /* 1217 * enable user write to registers 1218 */ 1219 mapix = VTOP((int)qd->adder) - VTOP(qvmem[0]); 1220 ptep = (int *)(QVmap[0] + mapix); 1221 for (i = 0; i < vax_btop(REGSIZE); i++, ptep++) 1222 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1223 1224 /* 1225 * enable user write to color maps 1226 */ 1227 mapix = VTOP((int)qd->red) - VTOP(qvmem[0]); 1228 ptep = (int *)(QVmap[0] + mapix); 1229 for (i = 0; i < vax_btop(CLRSIZE); i++, ptep++) 1230 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1231 1232 /* 1233 * enable user write to DUART 1234 */ 1235 mapix = VTOP((int)qd->duart) - VTOP(qvmem[0]); 1236 ptep = (int *)(QVmap[0] + mapix); 1237 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; /* duart page */ 1238 1239 mtpr(0, PR_TBIA); /* invalidate translation buffer */ 1240 1241 /* 1242 * stuff qdmap structure in return buffer 1243 */ 1244 bcopy((caddr_t)qd, datap, sizeof(struct qdmap)); 1245 1246 break; 1247 1248 #ifdef notyet 1249 /* 1250 * Ragge 999620: 1251 * Can't map in the graphic buffer into user space for now. 1252 * The best way to fix this is to convert this driver to wscons. 1253 */ 1254 case QD_MAPIOBUF: 1255 /* 1256 * do setup for DMA by user process 1257 * 1258 * set 'user write enable' bits for DMA buffer 1259 */ 1260 qdflags[unit].mapped |= MAPDMA; 1261 ptep = (int *) ((VTOP(DMAheader[unit]) * 4) 1262 + (mfpr(PR_SBR) | 0x80000000)); 1263 for (i = 0; i < vax_btop(DMAbuf_size); i++, ptep++) 1264 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1265 mtpr(0, PR_TBIA); /* invalidate translation buffer */ 1266 /* 1267 * set up QBUS map registers for DMA 1268 */ 1269 DMAheader[unit]->QBAreg = 1270 uballoc(uh, (caddr_t)DMAheader[unit], DMAbuf_size, 0); 1271 if (DMAheader[unit]->QBAreg == 0) 1272 printf("qd%d: qdioctl: QBA setup error\n", unit); 1273 Qbus_unmap[unit] = DMAheader[unit]->QBAreg; 1274 DMAheader[unit]->QBAreg &= 0x3FFFF; 1275 /* 1276 * return I/O buf adr 1277 */ 1278 *(int *)datap = (int) DMAheader[unit]; 1279 break; 1280 #endif 1281 1282 case QD_MAPSCROLL: 1283 /* 1284 * map the shared scroll param area and enable scroll interpts 1285 */ 1286 qdflags[unit].mapped |= MAPSCR; 1287 ptep = (int *) ((VTOP(scroll[unit]) * 4) 1288 + (mfpr(PR_SBR) | 0x80000000)); 1289 /* 1290 * allow user write to scroll area 1291 */ 1292 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1293 mtpr(0, PR_TBIA); /* invalidate translation buf */ 1294 scroll[unit]->status = 0; 1295 adder = (struct adder *) qdmap[unit].adder; 1296 qdflags[unit].adder_ie |= FRAME_SYNC; 1297 adder->interrupt_enable = qdflags[unit].adder_ie; 1298 *(int *)datap = (int) scroll[unit]; /* return scroll area */ 1299 break; 1300 1301 case QD_UNMAPSCROLL: 1302 /* 1303 * unmap shared scroll param area and disable scroll intrpts 1304 */ 1305 if (qdflags[unit].mapped & MAPSCR) { 1306 qdflags[unit].mapped &= ~MAPSCR; 1307 ptep = (int *) ((VTOP(scroll[unit]) * 4) 1308 + (mfpr(PR_SBR) | 0x80000000)); 1309 /* 1310 * re-protect 512 scroll param area 1311 */ 1312 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; 1313 mtpr(0, PR_TBIA); /* smash CPU's translation buf */ 1314 adder = (struct adder *) qdmap[unit].adder; 1315 qdflags[unit].adder_ie &= ~FRAME_SYNC; 1316 adder->interrupt_enable = qdflags[unit].adder_ie; 1317 } 1318 break; 1319 1320 case QD_MAPCOLOR: 1321 /* 1322 * map shared color map write buf and turn on vsync intrpt 1323 */ 1324 qdflags[unit].mapped |= MAPCOLOR; 1325 ptep = (int *) ((VTOP(color_buf[unit]) * 4) 1326 + (mfpr(PR_SBR) | 0x80000000)); 1327 /* 1328 * allow user write to color map write buffer 1329 */ 1330 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; ptep++; 1331 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1332 mtpr(0, PR_TBIA); /* clr CPU translation buf */ 1333 adder = (struct adder *) qdmap[unit].adder; 1334 qdflags[unit].adder_ie |= VSYNC; 1335 adder->interrupt_enable = qdflags[unit].adder_ie; 1336 /* 1337 * return color area address 1338 */ 1339 *(int *)datap = (int) color_buf[unit]; 1340 break; 1341 1342 case QD_UNMAPCOLOR: 1343 /* 1344 * unmap shared color map write buffer and kill VSYNC intrpts 1345 */ 1346 if (qdflags[unit].mapped & MAPCOLOR) { 1347 qdflags[unit].mapped &= ~MAPCOLOR; 1348 ptep = (int *) ((VTOP(color_buf[unit]) * 4) 1349 + (mfpr(PR_SBR) | 0x80000000)); 1350 /* 1351 * re-protect color map write buffer 1352 */ 1353 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; ptep++; 1354 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; 1355 mtpr(0, PR_TBIA); 1356 adder = (struct adder *) qdmap[unit].adder; 1357 qdflags[unit].adder_ie &= ~VSYNC; 1358 adder->interrupt_enable = qdflags[unit].adder_ie; 1359 } 1360 break; 1361 1362 case QD_MAPEVENT: 1363 /* 1364 * give user write access to the event queue 1365 */ 1366 qdflags[unit].mapped |= MAPEQ; 1367 ptep = (int *) ((VTOP(eq_header[unit]) * 4) 1368 + (mfpr(PR_SBR) | 0x80000000)); 1369 /* 1370 * allow user write to 1K event queue 1371 */ 1372 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; ptep++; 1373 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1374 mtpr(0, PR_TBIA); /* clr CPU translation buf */ 1375 /* 1376 * return event queue address 1377 */ 1378 *(int *)datap = (int)eq_header[unit]; 1379 break; 1380 1381 case QD_PRGKBD: 1382 /* 1383 * pass caller's programming commands to LK201 1384 */ 1385 duart = (struct duart *)qdmap[unit].duart; 1386 cmdbuf = (struct prgkbd *)datap; /* pnt to kbd cmd buf */ 1387 /* 1388 * send command 1389 */ 1390 for (i = 1000; i > 0; --i) { 1391 if (duart->statusA&XMT_RDY) { 1392 duart->dataA = cmdbuf->cmd; 1393 break; 1394 } 1395 } 1396 if (i == 0) { 1397 printf("qd%d: qdioctl: timeout on XMT_RDY [1]\n", unit); 1398 break; 1399 } 1400 /* 1401 * send param1? 1402 */ 1403 if (cmdbuf->cmd & LAST_PARAM) 1404 break; 1405 for (i = 1000; i > 0; --i) { 1406 if (duart->statusA&XMT_RDY) { 1407 duart->dataA = cmdbuf->param1; 1408 break; 1409 } 1410 } 1411 if (i == 0) { 1412 printf("qd%d: qdioctl: timeout on XMT_RDY [2]\n", unit); 1413 break; 1414 } 1415 /* 1416 * send param2? 1417 */ 1418 if (cmdbuf->param1 & LAST_PARAM) 1419 break; 1420 for (i = 1000; i > 0; --i) { 1421 if (duart->statusA&XMT_RDY) { 1422 duart->dataA = cmdbuf->param2; 1423 break; 1424 } 1425 } 1426 if (i == 0) { 1427 printf("qd%d: qdioctl: timeout on XMT_RDY [3]\n", unit); 1428 break; 1429 } 1430 break; 1431 1432 case QD_PRGMOUSE: 1433 /* 1434 * pass caller's programming commands to the mouse 1435 */ 1436 duart = (struct duart *) qdmap[unit].duart; 1437 for (i = 1000; i > 0; --i) { 1438 if (duart->statusB&XMT_RDY) { 1439 duart->dataB = *datap; 1440 break; 1441 } 1442 } 1443 if (i == 0) { 1444 printf("qd%d: qdioctl: timeout on XMT_RDY [4]\n", unit); 1445 } 1446 break; 1447 1448 case QD_RDCONFIG: 1449 /* 1450 * get QDSS configuration word and return it 1451 */ 1452 *(short *)datap = qdflags[unit].config; 1453 break; 1454 1455 case QD_KERN_LOOP: 1456 case QD_KERN_UNLOOP: 1457 /* 1458 * vestige from ultrix. BSD uses TIOCCONS to redirect 1459 * kernel console output. 1460 */ 1461 break; 1462 1463 case QD_PRGTABLET: 1464 /* 1465 * program the tablet 1466 */ 1467 duart = (struct duart *) qdmap[unit].duart; 1468 for (i = 1000; i > 0; --i) { 1469 if (duart->statusB&XMT_RDY) { 1470 duart->dataB = *datap; 1471 break; 1472 } 1473 } 1474 if (i == 0) { 1475 printf("qd%d: qdioctl: timeout on XMT_RDY [5]\n", unit); 1476 } 1477 break; 1478 1479 case QD_PRGTABRES: 1480 /* 1481 * program the tablet report resolution factor 1482 */ 1483 qdflags[unit].tab_res = *(short *)datap; 1484 break; 1485 1486 default: 1487 /* 1488 * service tty ioctl's 1489 */ 1490 if (!(minor_dev & 0x02)) { 1491 tp = qd_tty[minor_dev]; 1492 error = 1493 1494 (*tp->t_linesw->l_ioctl)(tp, cmd, datap, flags, p); 1495 if (error != EPASSTHROUGH) { 1496 return(error); 1497 } 1498 return ttioctl(tp, cmd, datap, flags, p); 1499 } 1500 break; 1501 } 1502 1503 return(0); 1504 1505 } /* qdioctl */ 1506 1507 1508 int 1509 qdpoll(dev, events, p) 1510 dev_t dev; 1511 int events; 1512 struct proc *p; 1513 { 1514 int s; 1515 int unit; 1516 struct tty *tp; 1517 u_int minor_dev = minor(dev); 1518 int revents = 0; 1519 1520 s = spl5(); 1521 unit = minor_dev >> 2; 1522 1523 if ((minor_dev & 0x03) == 2) { 1524 /* 1525 * This is a graphics device, so check for events. 1526 */ 1527 1528 if (events & (POLLIN | POLLRDNORM)) 1529 if(!(ISEMPTY(eq_header[unit]))) 1530 revents |= events & (POLLIN | POLLRDNORM); 1531 1532 if (events & (POLLOUT | POLLWRNORM)) 1533 if (DMA_ISEMPTY(DMAheader[unit])) 1534 revents |= events & (POLLOUT | POLLWRNORM); 1535 1536 if (revents == 0) { 1537 if (events & (POLLIN | POLLRDNORM)) 1538 selrecord(p, &qdrsel[unit]); 1539 1540 if (events & (POLLOUT | POLLWRNORM)) 1541 selrecord(p, &qdrsel[unit]); 1542 } 1543 } else { 1544 /* 1545 * this is a tty device 1546 */ 1547 tp = qd_tty[minor_dev]; 1548 revents = (*tp->t_linesw->l_poll)(tp, events, p); 1549 } 1550 1551 splx(s); 1552 return (revents); 1553 } /* qdpoll() */ 1554 1555 static void 1556 filt_qdrdetach(struct knote *kn) 1557 { 1558 dev_t dev = (intptr_t) kn->kn_hook; 1559 u_int minor_dev = minor(dev); 1560 int unit = minor_dev >> 2; 1561 int s; 1562 1563 s = spl5(); 1564 SLIST_REMOVE(&qdrsel[unit].sel_klist, kn, knote, kn_selnext); 1565 splx(s); 1566 } 1567 1568 static int 1569 filt_qdread(struct knote *kn, long hint) 1570 { 1571 dev_t dev = (intptr_t) kn->kn_hook; 1572 u_int minor_dev = minor(dev); 1573 int unit = minor_dev >> 2; 1574 1575 if (ISEMPTY(eq_header[unit])) 1576 return (0); 1577 1578 kn->kn_data = 0; /* XXXLUKEM (thorpej): what to put here? */ 1579 return (1); 1580 } 1581 1582 static int 1583 filt_qdwrite(struct knote *kn, long hint) 1584 { 1585 dev_t dev = (intptr_t) kn->kn_hook; 1586 u_int minor_dev = minor(dev); 1587 int unit = minor_dev >> 2; 1588 1589 if (! DMA_ISEMPTY(DMAheader[unit])) 1590 return (0); 1591 1592 kn->kn_data = 0; /* XXXLUKEM (thorpej): what to put here? */ 1593 return (1); 1594 } 1595 1596 static const struct filterops qdread_filtops = 1597 { 1, NULL, filt_qdrdetach, filt_qdread }; 1598 1599 static const struct filterops qdwrite_filtops = 1600 { 1, NULL, filt_qdrdetach, filt_qdwrite }; 1601 1602 int 1603 qdkqfilter(dev_t dev, struct knote *kn) 1604 { 1605 struct klist *klist; 1606 u_int minor_dev = minor(dev); 1607 int s, unit = minor_dev >> 2; 1608 1609 if ((minor_dev & 0x03) != 2) { 1610 /* TTY device. */ 1611 return (ttykqfilter(dev, kn)); 1612 } 1613 1614 switch (kn->kn_filter) { 1615 case EVFILT_READ: 1616 klist = &qdrsel[unit].sel_klist; 1617 kn->kn_fop = &qdread_filtops; 1618 break; 1619 1620 case EVFILT_WRITE: 1621 klist = &qdrsel[unit].sel_klist; 1622 kn->kn_fop = &qdwrite_filtops; 1623 break; 1624 1625 default: 1626 return (1); 1627 } 1628 1629 kn->kn_hook = (void *)(intptr_t) dev; 1630 1631 s = spl5(); 1632 SLIST_INSERT_HEAD(klist, kn, kn_selnext); 1633 splx(s); 1634 1635 return (0); 1636 } 1637 1638 void qd_strategy(struct buf *bp); 1639 1640 /*ARGSUSED*/ 1641 int 1642 qdwrite(dev, uio, flag) 1643 dev_t dev; 1644 struct uio *uio; 1645 int flag; 1646 { 1647 struct tty *tp; 1648 int minor_dev; 1649 int unit; 1650 1651 minor_dev = minor(dev); 1652 unit = (minor_dev >> 2) & 0x07; 1653 1654 if (((minor_dev&0x03) != 0x02) && (qdflags[unit].inuse&CONS_DEV)) { 1655 /* 1656 * this is the console... 1657 */ 1658 tp = qd_tty[minor_dev]; 1659 return ((*tp->t_linesw->l_write)(tp, uio, flag)); 1660 } else if (qdflags[unit].inuse & GRAPHIC_DEV) { 1661 /* 1662 * this is a DMA xfer from user space 1663 */ 1664 return (physio(qd_strategy, &qdbuf[unit], 1665 dev, B_WRITE, minphys, uio)); 1666 } 1667 return (ENXIO); 1668 } 1669 1670 /*ARGSUSED*/ 1671 int 1672 qdread(dev, uio, flag) 1673 dev_t dev; 1674 struct uio *uio; 1675 int flag; 1676 { 1677 struct tty *tp; 1678 int minor_dev; 1679 int unit; 1680 1681 minor_dev = minor(dev); 1682 unit = (minor_dev >> 2) & 0x07; 1683 1684 if ((minor_dev & 0x03) != 0x02 && qdflags[unit].inuse & CONS_DEV) { 1685 /* 1686 * this is the console 1687 */ 1688 tp = qd_tty[minor_dev]; 1689 return ((*tp->t_linesw->l_read)(tp, uio, flag)); 1690 } else if (qdflags[unit].inuse & GRAPHIC_DEV) { 1691 /* 1692 * this is a bitmap-to-processor xfer 1693 */ 1694 return (physio(qd_strategy, &qdbuf[unit], 1695 dev, B_READ, minphys, uio)); 1696 } 1697 return (ENXIO); 1698 } 1699 1700 /*************************************************************** 1701 * 1702 * qd_strategy()... strategy routine to do DMA 1703 * 1704 ***************************************************************/ 1705 1706 void 1707 qd_strategy(bp) 1708 struct buf *bp; 1709 { 1710 volatile struct dga *dga; 1711 volatile struct adder *adder; 1712 int unit; 1713 int QBAreg; 1714 int s; 1715 int cookie; 1716 struct uba_softc *uh; 1717 1718 unit = (minor(bp->b_dev) >> 2) & 0x07; 1719 1720 uh = (struct uba_softc *) 1721 device_parent((struct device *)(qd_cd.cd_devs[unit])); 1722 1723 /* 1724 * init pointers 1725 */ 1726 dga = (struct dga *) qdmap[unit].dga; 1727 panic("qd_strategy"); 1728 #ifdef notyet 1729 if ((QBAreg = ubasetup(uh, bp, 0)) == 0) { 1730 printf("qd%d: qd_strategy: QBA setup error\n", unit); 1731 goto STRAT_ERR; 1732 } 1733 #endif 1734 s = spl5(); 1735 qdflags[unit].user_dma = -1; 1736 dga->csr |= DMA_IE; 1737 cookie = QBAreg & 0x3FFFF; 1738 dga->adrs_lo = (short) cookie; 1739 dga->adrs_hi = (short) (cookie >> 16); 1740 dga->bytcnt_lo = (short) bp->b_bcount; 1741 dga->bytcnt_hi = (short) (bp->b_bcount >> 16); 1742 1743 while (qdflags[unit].user_dma) { 1744 (void) tsleep(&qdflags[unit].user_dma, QSPRIOR, 1745 "qdstrat", 0); 1746 } 1747 splx(s); 1748 #ifdef notyet 1749 ubarelse(uh, &QBAreg); 1750 #endif 1751 if (!(dga->csr & DMA_ERR)) { 1752 biodone(bp); 1753 return; 1754 } 1755 1756 /* STRAT_ERR: */ 1757 adder = (struct adder *) qdmap[unit].adder; 1758 adder->command = CANCEL; /* cancel adder activity */ 1759 dga->csr &= ~DMA_IE; 1760 dga->csr &= ~0x0600; /* halt DMA (reset fifo) */ 1761 dga->csr |= DMA_ERR; /* clear error condition */ 1762 bp->b_flags |= B_ERROR; /* flag an error to physio() */ 1763 1764 /* 1765 * if DMA was running, flush spurious intrpt 1766 */ 1767 if (dga->bytcnt_lo != 0) { 1768 dga->bytcnt_lo = 0; 1769 dga->bytcnt_hi = 0; 1770 DMA_SETIGNORE(DMAheader[unit]); 1771 dga->csr |= DMA_IE; 1772 } 1773 biodone(bp); 1774 } /* qd_strategy */ 1775 1776 1777 /* 1778 * Start output to the console screen 1779 */ 1780 void qdstart(tp) 1781 struct tty *tp; 1782 { 1783 int which_unit, unit, c; 1784 int s; 1785 1786 unit = minor(tp->t_dev); 1787 which_unit = (unit >> 2) & 0x3; 1788 unit &= 0x03; 1789 1790 s = spl5(); 1791 1792 /* 1793 * If it's currently active, or delaying, no need to do anything. 1794 */ 1795 if (tp->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP)) 1796 goto out; 1797 1798 /* 1799 * Display chars until the queue is empty. 1800 * Drop input from anything but the console 1801 * device on the floor. 1802 * 1803 * XXX - this loop is done at spltty. 1804 * 1805 */ 1806 while (tp->t_outq.c_cc) { 1807 c = getc(&tp->t_outq); 1808 if (unit == 0) 1809 blitc(which_unit, (u_char)c); 1810 } 1811 /* 1812 * If there are sleepers, and output has drained below low 1813 * water mark, wake up the sleepers. 1814 */ 1815 if (tp->t_outq.c_cc <= tp->t_lowat) { 1816 if (tp->t_state & TS_ASLEEP){ 1817 tp->t_state &= ~TS_ASLEEP; 1818 wakeup((caddr_t) &tp->t_outq); 1819 } 1820 } 1821 1822 tp->t_state &= ~TS_BUSY; 1823 1824 out: 1825 splx(s); 1826 1827 } /* qdstart */ 1828 1829 /*ARGSUSED*/ 1830 void 1831 qdstop(tp, flag) 1832 struct tty *tp; 1833 int flag; 1834 { 1835 int s; 1836 1837 s = spl5(); /* block intrpts during state modification */ 1838 if (tp->t_state & TS_BUSY) { 1839 if ((tp->t_state & TS_TTSTOP) == 0) 1840 tp->t_state |= TS_FLUSH; 1841 else 1842 tp->t_state &= ~TS_BUSY; 1843 } 1844 splx(s); 1845 } 1846 1847 /* 1848 * Output a character to the QDSS screen 1849 */ 1850 void 1851 blitc(unit, chr) 1852 int unit; 1853 u_char chr; 1854 { 1855 volatile struct adder *adder; 1856 volatile struct dga *dga; 1857 int i; 1858 int nograph = !(qdflags[unit].inuse&GRAPHIC_DEV); 1859 static short inescape[NQD]; 1860 1861 adder = (struct adder *)qdmap[unit].adder; 1862 dga = (struct dga *) qdmap[unit].dga; 1863 /* 1864 * BSD comment: this (&=0177) defeats the extended character 1865 * set code for the glass tty, but if i had the time i would 1866 * spend it ripping out the code completely. This driver 1867 * is too big for its own good. 1868 */ 1869 chr &= 0177; 1870 /* 1871 * Cursor addressing (so vi will work). 1872 * Decode for "\E=%.%." cursor motion description. 1873 * Corresponds to type "qdcons" in /etc/termcap: 1874 * 1875 * qd|qdss|qdcons|qdss glass tty (4.4 BSD):\ 1876 * :am:do=^J:le=^H:bs:cm=\E=%.%.:cl=1^Z:co#128:li#57::nd=^L:up=^K: 1877 * 1878 */ 1879 if (inescape[unit] && nograph) { 1880 switch (inescape[unit]++) { 1881 case 1: 1882 if (chr != '=') { 1883 /* abort escape sequence */ 1884 inescape[unit] = 0; 1885 blitc(unit, chr); 1886 } 1887 return; 1888 case 2: 1889 /* position row */ 1890 cursor[unit].y = CHAR_HEIGHT * chr; 1891 if (cursor[unit].y > 863 - CHAR_HEIGHT) 1892 cursor[unit].y = 863 - CHAR_HEIGHT; 1893 dga->y_cursor = TRANY(cursor[unit].y); 1894 return; 1895 case 3: 1896 /* position column */ 1897 cursor[unit].x = CHAR_WIDTH * chr; 1898 if (cursor[unit].x > 1024 - CHAR_WIDTH) 1899 cursor[unit].x = 1023 - CHAR_WIDTH; 1900 dga->x_cursor = TRANX(cursor[unit].x); 1901 inescape[unit] = 0; 1902 return; 1903 default: 1904 inescape[unit] = 0; 1905 blitc(unit, chr); 1906 } 1907 } 1908 1909 switch (chr) { 1910 case '\r': /* return char */ 1911 cursor[unit].x = 0; 1912 if (nograph) 1913 dga->x_cursor = TRANX(cursor[unit].x); 1914 return; 1915 1916 case '\t': /* tab char */ 1917 for (i = 8 - ((cursor[unit].x >> 3) & 0x07); i > 0; --i) { 1918 blitc(unit, ' '); 1919 } 1920 return; 1921 1922 case '\n': /* line feed char */ 1923 if ((cursor[unit].y += CHAR_HEIGHT) > (863 - CHAR_HEIGHT)) { 1924 if (nograph) { 1925 cursor[unit].y -= CHAR_HEIGHT; 1926 scroll_up(adder); 1927 } else 1928 cursor[unit].y = 0; 1929 } 1930 if (nograph) 1931 dga->y_cursor = TRANY(cursor[unit].y); 1932 return; 1933 1934 case '\b': /* backspace char */ 1935 if (cursor[unit].x > 0) { 1936 cursor[unit].x -= CHAR_WIDTH; 1937 if (nograph) 1938 dga->x_cursor = TRANX(cursor[unit].x); 1939 } 1940 return; 1941 case CTRL('k'): /* cursor up */ 1942 if (nograph && cursor[unit].y > 0) { 1943 cursor[unit].y -= CHAR_HEIGHT; 1944 dga->y_cursor = TRANY(cursor[unit].y); 1945 } 1946 return; 1947 1948 case CTRL('^'): /* home cursor */ 1949 if (nograph) { 1950 cursor[unit].x = 0; 1951 dga->x_cursor = TRANX(cursor[unit].x); 1952 cursor[unit].y = 0; 1953 dga->y_cursor = TRANY(cursor[unit].y); 1954 } 1955 return; 1956 1957 case CTRL('l'): /* cursor right */ 1958 if (nograph && cursor[unit].x < 1023 - CHAR_WIDTH) { 1959 cursor[unit].x += CHAR_WIDTH; 1960 dga->x_cursor = TRANX(cursor[unit].x); 1961 } 1962 return; 1963 1964 case CTRL('z'): /* clear screen */ 1965 if (nograph) { 1966 setup_dragon(unit); 1967 clear_qd_screen(unit); 1968 /* home cursor - termcap seems to assume this */ 1969 cursor[unit].x = 0; 1970 dga->x_cursor = TRANX(cursor[unit].x); 1971 cursor[unit].y = 0; 1972 dga->y_cursor = TRANY(cursor[unit].y); 1973 } 1974 return; 1975 1976 case '\033': /* start escape sequence */ 1977 if (nograph) 1978 inescape[unit] = 1; 1979 return; 1980 1981 default: 1982 if ((chr < ' ') || (chr > '~')) 1983 return; 1984 } 1985 /* 1986 * setup VIPER operand control registers 1987 */ 1988 write_ID(adder, CS_UPDATE_MASK, 0x0001); /* select plane #0 */ 1989 write_ID(adder, SRC1_OCR_B, 1990 EXT_NONE | INT_SOURCE | ID | BAR_SHIFT_DELAY); 1991 write_ID(adder, CS_UPDATE_MASK, 0x00FE); /* select other planes */ 1992 write_ID(adder, SRC1_OCR_B, 1993 EXT_SOURCE | INT_NONE | NO_ID | BAR_SHIFT_DELAY); 1994 write_ID(adder, CS_UPDATE_MASK, 0x00FF); /* select all planes */ 1995 write_ID(adder, DST_OCR_B, 1996 EXT_NONE | INT_NONE | NO_ID | NO_BAR_SHIFT_DELAY); 1997 write_ID(adder, MASK_1, 0xFFFF); 1998 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 1); 1999 write_ID(adder, VIPER_Z_LOAD | BACKGROUND_COLOR_Z, 0); 2000 adder->x_clip_min = 0; 2001 adder->x_clip_max = 1024; 2002 adder->y_clip_min = 0; 2003 adder->y_clip_max = 864; 2004 /* 2005 * load DESTINATION origin and vectors 2006 */ 2007 adder->fast_dest_dy = 0; 2008 adder->slow_dest_dx = 0; 2009 adder->error_1 = 0; 2010 adder->error_2 = 0; 2011 adder->rasterop_mode = DST_WRITE_ENABLE | NORMAL; 2012 (void)wait_status(adder, RASTEROP_COMPLETE); 2013 adder->destination_x = cursor[unit].x; 2014 adder->fast_dest_dx = CHAR_WIDTH; 2015 adder->destination_y = cursor[unit].y; 2016 adder->slow_dest_dy = CHAR_HEIGHT; 2017 /* 2018 * load SOURCE origin and vectors 2019 */ 2020 if ((chr - ' ') > (CHARS - 1)) { 2021 printf("Invalid character (x)%x in blitc\n",chr); 2022 chr = ' '; 2023 } 2024 /* 2025 * X position is modulo the number of characters per line 2026 */ 2027 adder->source_1_x = FONT_X + 2028 (((chr - ' ') % (MAX_SCREEN_X/CHAR_WIDTH)) * CHAR_WIDTH); 2029 /* 2030 * Point to either first or second row 2031 */ 2032 adder->source_1_y = 2048 - 15 * 2033 (((chr - ' ')/(MAX_SCREEN_X/CHAR_WIDTH)) + 1); 2034 adder->source_1_dx = CHAR_WIDTH; 2035 adder->source_1_dy = CHAR_HEIGHT; 2036 write_ID(adder, LU_FUNCTION_R1, FULL_SRC_RESOLUTION | LF_SOURCE); 2037 adder->cmd = RASTEROP | OCRB | 0 | S1E | DTE; 2038 /* 2039 * update console cursor coordinates 2040 */ 2041 cursor[unit].x += CHAR_WIDTH; 2042 if (nograph) 2043 dga->x_cursor = TRANX(cursor[unit].x); 2044 if (cursor[unit].x > (1024 - CHAR_WIDTH)) { 2045 blitc(unit, '\r'); 2046 blitc(unit, '\n'); 2047 } 2048 2049 } /* blitc */ 2050 2051 /* 2052 * INTERRUPT SERVICE ROUTINES 2053 */ 2054 2055 /* 2056 * Service "DMA DONE" interrupt condition 2057 */ 2058 2059 static void 2060 qddint(arg) 2061 void *arg; 2062 { 2063 struct device *dv = arg; 2064 struct DMAreq_header *header; 2065 struct DMAreq *request; 2066 volatile struct dga *dga; 2067 volatile struct adder *adder; 2068 int cookie; /* DMA adrs for QDSS */ 2069 int unit = device_unit(dv); 2070 2071 (void)spl4(); /* allow interval timer in */ 2072 2073 /* 2074 * init pointers 2075 */ 2076 header = DMAheader[unit]; /* register for optimization */ 2077 dga = (struct dga *) qdmap[unit].dga; 2078 adder = (struct adder *) qdmap[unit].adder; 2079 2080 /* 2081 * if this interrupt flagged as bogus for interrupt flushing purposes.. 2082 */ 2083 if (DMA_ISIGNORE(header)) { 2084 DMA_CLRIGNORE(header); 2085 return; 2086 } 2087 2088 /* 2089 * dump a DMA hardware error message if appropriate 2090 */ 2091 if (dga->csr & DMA_ERR) { 2092 2093 if (dga->csr & PARITY_ERR) 2094 printf("qd%d: qddint: DMA hardware parity fault.\n", unit); 2095 2096 if (dga->csr & BUS_ERR) 2097 printf("qd%d: qddint: DMA hardware bus error.\n", unit); 2098 } 2099 2100 /* 2101 * if this was a DMA from user space... 2102 */ 2103 if (qdflags[unit].user_dma) { 2104 qdflags[unit].user_dma = 0; 2105 wakeup((caddr_t)&qdflags[unit].user_dma); 2106 return; 2107 } 2108 2109 /* 2110 * if we're doing DMA request queue services, field the error condition 2111 */ 2112 if (dga->csr & DMA_ERR) { 2113 2114 dga->csr &= ~0x0600; /* halt DMA (reset fifo) */ 2115 dga->csr |= DMA_ERR; /* clear error condition */ 2116 adder->command = CANCEL; /* cancel adder activity */ 2117 2118 DMA_SETERROR(header); /* flag error in header status word */ 2119 DMA_CLRACTIVE(header); 2120 header->DMAreq[header->oldest].DMAdone |= HARD_ERROR; 2121 header->newest = header->oldest; 2122 header->used = 0; 2123 2124 selnotify(&qdrsel[unit], 0); 2125 2126 if (dga->bytcnt_lo != 0) { 2127 dga->bytcnt_lo = 0; 2128 dga->bytcnt_hi = 0; 2129 DMA_SETIGNORE(header); 2130 } 2131 return; 2132 } 2133 2134 /* 2135 * if the DMA request queue is now becoming non-full, 2136 * wakeup "select" client. 2137 */ 2138 if (DMA_ISFULL(header)) { 2139 selnotify(&qdrsel[unit], 0); 2140 } 2141 2142 header->DMAreq[header->oldest].DMAdone |= REQUEST_DONE; 2143 QDlast_DMAtype = header->DMAreq[header->oldest].DMAtype; 2144 2145 /* check for unexpected interrupt */ 2146 if (DMA_ISEMPTY(header)) 2147 return; 2148 2149 DMA_GETEND(header); /* update request queue indices */ 2150 2151 /* 2152 * if no more DMA pending, wake up "select" client and exit 2153 */ 2154 if (DMA_ISEMPTY(header)) { 2155 selnotify(&qdrsel[unit], 0); 2156 DMA_CLRACTIVE(header); /* flag DMA done */ 2157 return; 2158 } 2159 2160 /* 2161 * initiate next DMA xfer 2162 */ 2163 request = DMA_GETBEGIN(header); 2164 if (request->DMAtype != QDlast_DMAtype) { 2165 dga->csr &= ~0x0600; /* halt DMA (reset fifo) */ 2166 adder->command = CANCEL; /* cancel adder activity */ 2167 } 2168 2169 2170 switch (request->DMAtype) { 2171 2172 case DISPLIST: 2173 if (request->DMAtype != QDlast_DMAtype) { 2174 dga->csr |= DL_ENB; 2175 dga->csr &= ~(BTOP_ENB | BYTE_DMA); 2176 } 2177 break; 2178 2179 case PTOB: 2180 if (request->DMAtype != QDlast_DMAtype) { 2181 if (request->DMAdone & BYTE_PACK) 2182 dga->csr |= (PTOB_ENB | BYTE_DMA); 2183 else { 2184 dga->csr |= PTOB_ENB; 2185 dga->csr &= ~BYTE_DMA; 2186 } 2187 } 2188 break; 2189 2190 case BTOP: 2191 if (request->DMAtype != QDlast_DMAtype) { 2192 if (request->DMAdone & BYTE_PACK) { 2193 dga->csr &= ~DL_ENB; 2194 dga->csr |= (BTOP_ENB | BYTE_DMA); 2195 } 2196 else { 2197 dga->csr |= BTOP_ENB; 2198 dga->csr &= ~(BYTE_DMA | DL_ENB); 2199 } 2200 } 2201 break; 2202 default: 2203 printf("qd%d: qddint: illegal DMAtype parameter.\n", unit); 2204 DMA_CLRACTIVE(header); /* flag DMA done */ 2205 return; 2206 } 2207 2208 if (request->DMAdone & COUNT_ZERO) { 2209 dga->csr &= ~SET_DONE_FIFO; 2210 } 2211 else if (request->DMAdone & FIFO_EMPTY) { 2212 dga->csr |= SET_DONE_FIFO; 2213 } 2214 2215 if (request->DMAdone & WORD_PACK) 2216 dga->csr &= ~BYTE_DMA; 2217 else if (request->DMAdone & BYTE_PACK) 2218 dga->csr |= BYTE_DMA; 2219 2220 dga->csr |= DMA_IE; 2221 QDlast_DMAtype = request->DMAtype; 2222 2223 cookie = ((int)request->bufp - (int)header) + (int)header->QBAreg; 2224 2225 dga->adrs_lo = (short) cookie; 2226 dga->adrs_hi = (short) (cookie >> 16); 2227 2228 dga->bytcnt_lo = (short) request->length; 2229 dga->bytcnt_hi = (short) (request->length >> 16); 2230 2231 return; 2232 } 2233 2234 /* 2235 * ADDER interrupt service routine 2236 */ 2237 static void 2238 qdaint(arg) 2239 void *arg; 2240 { 2241 struct device *dv = arg; 2242 volatile struct adder *adder; 2243 struct color_buf *cbuf; 2244 int i; 2245 struct rgb *rgbp; 2246 volatile short *red; 2247 volatile short *green; 2248 volatile short *blue; 2249 int unit = device_unit(dv); 2250 2251 (void)spl4(); /* allow interval timer in */ 2252 2253 adder = (struct adder *) qdmap[unit].adder; 2254 2255 /* 2256 * service the vertical blank interrupt (VSYNC bit) by loading 2257 * any pending color map load request 2258 */ 2259 if (adder->status & VSYNC) { 2260 adder->status &= ~VSYNC; /* clear the interrupt */ 2261 cbuf = color_buf[unit]; 2262 if (cbuf->status & LOAD_COLOR_MAP) { 2263 2264 red = (short *) qdmap[unit].red; 2265 green = (short *) qdmap[unit].green; 2266 blue = (short *) qdmap[unit].blue; 2267 2268 for (i = cbuf->count, rgbp = cbuf->rgb; 2269 --i >= 0; rgbp++) { 2270 red[rgbp->offset] = (short) rgbp->red; 2271 green[rgbp->offset] = (short) rgbp->green; 2272 blue[rgbp->offset] = (short) rgbp->blue; 2273 } 2274 2275 cbuf->status &= ~LOAD_COLOR_MAP; 2276 } 2277 } 2278 2279 /* 2280 * service the scroll interrupt (FRAME_SYNC bit) 2281 */ 2282 if (adder->status & FRAME_SYNC) { 2283 adder->status &= ~FRAME_SYNC; /* clear the interrupt */ 2284 2285 if (scroll[unit]->status & LOAD_REGS) { 2286 2287 for (i = 1000, adder->status = 0; i > 0 && 2288 !(adder->status&ID_SCROLL_READY); --i) 2289 ; 2290 2291 if (i == 0) { 2292 printf("qd%d: qdaint: timeout on ID_SCROLL_READY\n", 2293 qd); 2294 return; 2295 } 2296 2297 adder->ID_scroll_data = scroll[unit]->viper_constant; 2298 adder->ID_scroll_command = ID_LOAD | SCROLL_CONSTANT; 2299 2300 adder->y_scroll_constant = 2301 scroll[unit]->y_scroll_constant; 2302 adder->y_offset_pending = scroll[unit]->y_offset; 2303 2304 if (scroll[unit]->status & LOAD_INDEX) { 2305 2306 adder->x_index_pending = 2307 scroll[unit]->x_index_pending; 2308 adder->y_index_pending = 2309 scroll[unit]->y_index_pending; 2310 } 2311 2312 scroll[unit]->status = 0x00; 2313 } 2314 } 2315 } 2316 2317 /* 2318 * DUART input interrupt service routine 2319 * 2320 * XXX - this routine should be broken out - it is essentially 2321 * straight line code. 2322 */ 2323 2324 static void 2325 qdiint(arg) 2326 void *arg; 2327 { 2328 struct device *dv = arg; 2329 struct _vs_event *event; 2330 struct qdinput *eqh; 2331 volatile struct dga *dga; 2332 volatile struct duart *duart; 2333 struct mouse_report *new_rep; 2334 struct tty *tp; 2335 u_short chr; 2336 u_short status; 2337 u_short data; 2338 u_short key; 2339 char do_wakeup = 0; /* flag to do a select wakeup call */ 2340 char a, b, c; /* mouse button test variables */ 2341 int unit = device_unit(dv); 2342 2343 (void)spl4(); /* allow interval timer in */ 2344 2345 eqh = eq_header[unit]; /* optimized as a register */ 2346 new_rep = ¤t_rep[unit]; 2347 duart = (struct duart *) qdmap[unit].duart; 2348 2349 /* 2350 * if the graphic device is turned on.. 2351 */ 2352 if (qdflags[unit].inuse & GRAPHIC_DEV) { 2353 /* 2354 * empty DUART 2355 */ 2356 while (duart->statusA&RCV_RDY || duart->statusB&RCV_RDY) { 2357 /* 2358 * pick up LK-201 input (if any) 2359 */ 2360 if (duart->statusA&RCV_RDY) { 2361 2362 /* if error condition, then reset it */ 2363 2364 if (duart->statusA&0x70) { 2365 duart->cmdA = 0x40; 2366 continue; 2367 } 2368 2369 /* event queue full now? (overflow condition) */ 2370 2371 if (ISFULL(eqh) == TRUE) { 2372 printf( 2373 "qd%d: qdiint: event queue overflow\n", 2374 qd); 2375 break; 2376 } 2377 2378 /* 2379 * Check for various keyboard errors */ 2380 2381 key = duart->dataA & 0xFF; 2382 2383 if (key==LK_POWER_ERROR || 2384 key==LK_KDOWN_ERROR || 2385 key == LK_INPUT_ERROR || 2386 key == LK_OUTPUT_ERROR) { 2387 printf( 2388 "qd%d: qdiint: keyboard error, code = %x\n", 2389 qd,key); 2390 return; 2391 } 2392 2393 if (key < LK_LOWEST) 2394 return; 2395 2396 ++do_wakeup; /* request a select wakeup call */ 2397 2398 event = PUTBEGIN(eqh); 2399 PUTEND(eqh); 2400 2401 event->vse_key = key; 2402 event->vse_key &= 0x00FF; 2403 event->vse_x = eqh->curs_pos.x; 2404 event->vse_y = eqh->curs_pos.y; 2405 event->vse_time = TOY; 2406 event->vse_type = VSE_BUTTON; 2407 event->vse_direction = VSE_KBTRAW; 2408 event->vse_device = VSE_DKB; 2409 } 2410 2411 /* 2412 * pick up the mouse input (if any) */ 2413 2414 if ((status = duart->statusB) & RCV_RDY && 2415 qdflags[unit].pntr_id == MOUSE_ID) { 2416 2417 if (status & 0x70) { 2418 duart->cmdB = 0x40; 2419 continue; 2420 } 2421 2422 /* event queue full now? (overflow condition) */ 2423 2424 if (ISFULL(eqh) == TRUE) { 2425 printf( 2426 "qd%d: qdiint: event queue overflow\n", 2427 qd); 2428 break; 2429 } 2430 2431 data = duart->dataB; /* get report byte */ 2432 ++new_rep->bytcnt; /* bump report byte count */ 2433 2434 /* 2435 * if 1st byte of report.. */ 2436 2437 if ( data & START_FRAME) { 2438 new_rep->state = data; 2439 if (new_rep->bytcnt > 1) { 2440 /* start of new frame */ 2441 new_rep->bytcnt = 1; 2442 /* ..continue looking */ 2443 continue; 2444 } 2445 } 2446 2447 /* 2448 * if 2nd byte of report.. */ 2449 2450 else if (new_rep->bytcnt == 2) { 2451 new_rep->dx = data & 0x00FF; 2452 } 2453 2454 /* 2455 * if 3rd byte of report, load input event queue */ 2456 2457 else if (new_rep->bytcnt == 3) { 2458 2459 new_rep->dy = data & 0x00FF; 2460 new_rep->bytcnt = 0; 2461 2462 /* 2463 * if mouse position has changed.. */ 2464 2465 if (new_rep->dx != 0 || new_rep->dy != 0) { 2466 2467 /* 2468 * calculate acceleration factor, if needed */ 2469 2470 if (qdflags[unit].curs_acc > ACC_OFF) { 2471 2472 if (qdflags[unit].curs_thr <= new_rep->dx) 2473 new_rep->dx += 2474 (new_rep->dx - qdflags[unit].curs_thr) 2475 * qdflags[unit].curs_acc; 2476 2477 if (qdflags[unit].curs_thr <= new_rep->dy) 2478 new_rep->dy += 2479 (new_rep->dy - qdflags[unit].curs_thr) 2480 * qdflags[unit].curs_acc; 2481 } 2482 2483 /* 2484 * update cursor position coordinates */ 2485 2486 if (new_rep->state & X_SIGN) { 2487 eqh->curs_pos.x += new_rep->dx; 2488 if (eqh->curs_pos.x > 1023) 2489 eqh->curs_pos.x = 1023; 2490 } 2491 else { 2492 eqh->curs_pos.x -= new_rep->dx; 2493 if (eqh->curs_pos.x < -15) 2494 eqh->curs_pos.x = -15; 2495 } 2496 2497 if (new_rep->state & Y_SIGN) { 2498 eqh->curs_pos.y -= new_rep->dy; 2499 if (eqh->curs_pos.y < -15) 2500 eqh->curs_pos.y = -15; 2501 } 2502 else { 2503 eqh->curs_pos.y += new_rep->dy; 2504 if (eqh->curs_pos.y > 863) 2505 eqh->curs_pos.y = 863; 2506 } 2507 2508 /* 2509 * update cursor screen position */ 2510 2511 dga = (struct dga *) qdmap[unit].dga; 2512 dga->x_cursor = TRANX(eqh->curs_pos.x); 2513 dga->y_cursor = TRANY(eqh->curs_pos.y); 2514 2515 /* 2516 * if cursor is in the box, no event report */ 2517 2518 if (eqh->curs_pos.x <= eqh->curs_box.right && 2519 eqh->curs_pos.x >= eqh->curs_box.left && 2520 eqh->curs_pos.y >= eqh->curs_box.top && 2521 eqh->curs_pos.y <= eqh->curs_box.bottom ) { 2522 goto GET_MBUTTON; 2523 } 2524 2525 /* 2526 * report the mouse motion event */ 2527 2528 event = PUTBEGIN(eqh); 2529 PUTEND(eqh); 2530 2531 ++do_wakeup; /* request a select wakeup call */ 2532 2533 event->vse_x = eqh->curs_pos.x; 2534 event->vse_y = eqh->curs_pos.y; 2535 2536 event->vse_device = VSE_MOUSE; /* mouse */ 2537 event->vse_type = VSE_MMOTION; /* pos changed */ 2538 event->vse_key = 0; 2539 event->vse_direction = 0; 2540 event->vse_time = TOY; /* time stamp */ 2541 } 2542 2543 GET_MBUTTON: 2544 /* 2545 * if button state has changed */ 2546 2547 a = new_rep->state & 0x07; /*mask nonbutton bits */ 2548 b = last_rep[unit].state & 0x07; 2549 2550 if (a ^ b) { 2551 2552 for ( c = 1; c < 8; c <<= 1) { 2553 2554 if (!( c & (a ^ b))) /* this button change? */ 2555 continue; 2556 2557 /* event queue full? (overflow condition) */ 2558 2559 if (ISFULL(eqh) == TRUE) { 2560 printf("qd%d: qdiint: event queue overflow\n", qd); 2561 break; 2562 } 2563 2564 event = PUTBEGIN(eqh); /* get new event */ 2565 PUTEND(eqh); 2566 2567 ++do_wakeup; /* request select wakeup */ 2568 2569 event->vse_x = eqh->curs_pos.x; 2570 event->vse_y = eqh->curs_pos.y; 2571 2572 event->vse_device = VSE_MOUSE; /* mouse */ 2573 event->vse_type = VSE_BUTTON; /* new button */ 2574 event->vse_time = TOY; /* time stamp */ 2575 2576 /* flag changed button and if up or down */ 2577 2578 if (c == RIGHT_BUTTON) 2579 event->vse_key = VSE_RIGHT_BUTTON; 2580 else if (c == MIDDLE_BUTTON) 2581 event->vse_key = VSE_MIDDLE_BUTTON; 2582 else if (c == LEFT_BUTTON) 2583 event->vse_key = VSE_LEFT_BUTTON; 2584 2585 /* set bit = button depressed */ 2586 2587 if (c & a) 2588 event->vse_direction = VSE_KBTDOWN; 2589 else 2590 event->vse_direction = VSE_KBTUP; 2591 } 2592 } 2593 2594 /* refresh last report */ 2595 2596 last_rep[unit] = current_rep[unit]; 2597 2598 } /* get last byte of report */ 2599 } else if ((status = duart->statusB)&RCV_RDY && 2600 qdflags[unit].pntr_id == TABLET_ID) { 2601 /* 2602 * pickup tablet input, if any 2603 */ 2604 if (status&0x70) { 2605 duart->cmdB = 0x40; 2606 continue; 2607 } 2608 /* 2609 * event queue full now? (overflow condition) 2610 */ 2611 if (ISFULL(eqh) == TRUE) { 2612 printf("qd%d: qdiint: event queue overflow\n", qd); 2613 break; 2614 } 2615 2616 data = duart->dataB; /* get report byte */ 2617 ++new_rep->bytcnt; /* bump report byte count */ 2618 2619 /* 2620 * if 1st byte of report.. */ 2621 2622 if (data & START_FRAME) { 2623 new_rep->state = data; 2624 if (new_rep->bytcnt > 1) { 2625 new_rep->bytcnt = 1; /* start of new frame */ 2626 continue; /* ..continue looking */ 2627 } 2628 } 2629 2630 /* 2631 * if 2nd byte of report.. */ 2632 2633 else if (new_rep->bytcnt == 2) { 2634 new_rep->dx = data & 0x3F; 2635 } 2636 2637 /* 2638 * if 3rd byte of report.. */ 2639 2640 else if (new_rep->bytcnt == 3) { 2641 new_rep->dx |= (data & 0x3F) << 6; 2642 } 2643 2644 /* 2645 * if 4th byte of report.. */ 2646 2647 else if (new_rep->bytcnt == 4) { 2648 new_rep->dy = data & 0x3F; 2649 } 2650 2651 /* 2652 * if 5th byte of report, load input event queue */ 2653 2654 else if (new_rep->bytcnt == 5) { 2655 2656 new_rep->dy |= (data & 0x3F) << 6; 2657 new_rep->bytcnt = 0; 2658 2659 /* 2660 * update cursor position coordinates */ 2661 2662 new_rep->dx /= qdflags[unit].tab_res; 2663 new_rep->dy = (2200 - new_rep->dy) 2664 / qdflags[unit].tab_res; 2665 2666 if (new_rep->dx > 1023) { 2667 new_rep->dx = 1023; 2668 } 2669 if (new_rep->dy > 863) { 2670 new_rep->dy = 863; 2671 } 2672 2673 /* 2674 * report an event if the puck/stylus has moved 2675 */ 2676 2677 if (eqh->curs_pos.x != new_rep->dx || 2678 eqh->curs_pos.y != new_rep->dy) { 2679 2680 eqh->curs_pos.x = new_rep->dx; 2681 eqh->curs_pos.y = new_rep->dy; 2682 2683 /* 2684 * update cursor screen position */ 2685 2686 dga = (struct dga *) qdmap[unit].dga; 2687 dga->x_cursor = TRANX(eqh->curs_pos.x); 2688 dga->y_cursor = TRANY(eqh->curs_pos.y); 2689 2690 /* 2691 * if cursor is in the box, no event report 2692 */ 2693 2694 if (eqh->curs_pos.x <= eqh->curs_box.right && 2695 eqh->curs_pos.x >= eqh->curs_box.left && 2696 eqh->curs_pos.y >= eqh->curs_box.top && 2697 eqh->curs_pos.y <= eqh->curs_box.bottom ) { 2698 goto GET_TBUTTON; 2699 } 2700 2701 /* 2702 * report the tablet motion event */ 2703 2704 event = PUTBEGIN(eqh); 2705 PUTEND(eqh); 2706 2707 ++do_wakeup; /* request a select wakeup call */ 2708 2709 event->vse_x = eqh->curs_pos.x; 2710 event->vse_y = eqh->curs_pos.y; 2711 2712 event->vse_device = VSE_TABLET; /* tablet */ 2713 /* 2714 * right now, X handles tablet motion the same 2715 * as mouse motion 2716 */ 2717 event->vse_type = VSE_MMOTION; /* pos changed */ 2718 event->vse_key = 0; 2719 event->vse_direction = 0; 2720 event->vse_time = TOY; /* time stamp */ 2721 } 2722 GET_TBUTTON: 2723 /* 2724 * if button state has changed */ 2725 2726 a = new_rep->state & 0x1E; /* mask nonbutton bits */ 2727 b = last_rep[unit].state & 0x1E; 2728 2729 if (a ^ b) { 2730 2731 /* event queue full now? (overflow condition) */ 2732 2733 if (ISFULL(eqh) == TRUE) { 2734 printf("qd%d: qdiint: event queue overflow\n",qd); 2735 break; 2736 } 2737 2738 event = PUTBEGIN(eqh); /* get new event */ 2739 PUTEND(eqh); 2740 2741 ++do_wakeup; /* request a select wakeup call */ 2742 2743 event->vse_x = eqh->curs_pos.x; 2744 event->vse_y = eqh->curs_pos.y; 2745 2746 event->vse_device = VSE_TABLET; /* tablet */ 2747 event->vse_type = VSE_BUTTON; /* button changed */ 2748 event->vse_time = TOY; /* time stamp */ 2749 2750 /* define the changed button and if up or down */ 2751 2752 for ( c = 1; c <= 0x10; c <<= 1) { 2753 if (c & (a ^ b)) { 2754 if (c == T_LEFT_BUTTON) 2755 event->vse_key = VSE_T_LEFT_BUTTON; 2756 else if (c == T_FRONT_BUTTON) 2757 event->vse_key = VSE_T_FRONT_BUTTON; 2758 else if (c == T_RIGHT_BUTTON) 2759 event->vse_key = VSE_T_RIGHT_BUTTON; 2760 else if (c == T_BACK_BUTTON) 2761 event->vse_key = VSE_T_BACK_BUTTON; 2762 break; 2763 } 2764 } 2765 2766 /* set bit = button depressed */ 2767 2768 if (c & a) 2769 event->vse_direction = VSE_KBTDOWN; 2770 else 2771 event->vse_direction = VSE_KBTUP; 2772 } 2773 2774 /* refresh last report */ 2775 2776 last_rep[unit] = current_rep[unit]; 2777 2778 } /* get last byte of report */ 2779 } /* pick up tablet input */ 2780 2781 } /* while input available.. */ 2782 2783 /* 2784 * do select wakeup 2785 */ 2786 if (do_wakeup) { 2787 selnotify(&qdrsel[unit], 0); 2788 do_wakeup = 0; 2789 } 2790 } else { 2791 /* 2792 * if the graphic device is not turned on, this is console input 2793 */ 2794 if (qdpolling) 2795 return; 2796 2797 if (unit >= qd_cd.cd_ndevs || qd_cd.cd_devs[unit] == NULL) 2798 return; /* no such device or address */ 2799 2800 tp = qd_tty[unit << 2]; 2801 2802 /* 2803 * Get a character from the keyboard. 2804 */ 2805 while (duart->statusA&RCV_RDY) { 2806 key = duart->dataA; 2807 key &= 0xFF; 2808 /* 2809 * Check for various keyboard errors 2810 */ 2811 if (key == LK_POWER_ERROR || key == LK_KDOWN_ERROR || 2812 key == LK_INPUT_ERROR || key == LK_OUTPUT_ERROR) { 2813 printf("qd%d: qdiint: Keyboard error, code = %x\n",qd,key); 2814 return; 2815 } 2816 2817 if (key < LK_LOWEST) 2818 return; 2819 2820 /* 2821 * See if its a state change key */ 2822 2823 switch (key) { 2824 2825 case LOCK: 2826 q_keyboard.lock ^= 0xffff; /* toggle */ 2827 if (q_keyboard.lock) 2828 led_control(qd, LK_LED_ENABLE, 2829 LK_LED_LOCK); 2830 else 2831 led_control(qd, LK_LED_DISABLE, 2832 LK_LED_LOCK); 2833 return; 2834 2835 case SHIFT: 2836 q_keyboard.shift ^= 0xFFFF; 2837 return; 2838 2839 case CNTRL: 2840 q_keyboard.cntrl ^= 0xFFFF; 2841 return; 2842 2843 case ALLUP: 2844 q_keyboard.cntrl = 0; 2845 q_keyboard.shift = 0; 2846 return; 2847 2848 case REPEAT: 2849 chr = q_keyboard.last; 2850 break; 2851 2852 /* 2853 * Test for cntrl characters. If set, see if the character 2854 * is elligible to become a control character. */ 2855 2856 default: 2857 2858 if (q_keyboard.cntrl) { 2859 chr = q_key[key]; 2860 if (chr >= ' ' && chr <= '~') 2861 chr &= 0x1F; 2862 else if (chr >= 0xA1 && chr <= 0xFE) 2863 chr &= 0x9F; 2864 } 2865 else if( q_keyboard.lock || q_keyboard.shift ) 2866 chr = q_shift_key[key]; 2867 else 2868 chr = q_key[key]; 2869 break; 2870 } 2871 2872 q_keyboard.last = chr; 2873 2874 /* 2875 * Check for special function keys */ 2876 2877 if (chr & 0x100) { 2878 char *string; 2879 string = q_special[chr & 0x7F]; 2880 while(*string) 2881 (*tp->t_linesw->l_rint)(*string++, tp); 2882 } 2883 else { 2884 #ifdef DDB 2885 /* Check for kernel debugger escape here */ 2886 int j; 2887 2888 j = kdbrint(chr&0177); 2889 2890 if (j == 1) /* Escape received, just return */ 2891 return; 2892 2893 if (j == 2) /* Second char wasn't 'D' */ 2894 (*tp->t_linesw->l_rint)(27, tp); 2895 #endif 2896 (*tp->t_linesw->l_rint)(chr&0177, tp); 2897 } 2898 } 2899 } 2900 } /* qdiint */ 2901 2902 /* 2903 * 2904 * Clear the QDSS screen 2905 * 2906 * >>> NOTE <<< 2907 * 2908 * This code requires that certain adder initialization be valid. To 2909 * assure that this requirement is satisfied, this routine should be 2910 * called only after calling the "setup_dragon()" function. 2911 * 2912 * Clear the bitmap a piece at a time. Since the fast scroll clear 2913 * only clears the current displayed portion of the bitmap put a 2914 * temporary value in the y limit register so we can access whole 2915 * bitmap 2916 * 2917 */ 2918 void 2919 clear_qd_screen(unit) 2920 int unit; 2921 { 2922 volatile struct adder *adder; 2923 adder = (struct adder *) qdmap[unit].adder; 2924 2925 adder->x_limit = 1024; 2926 adder->y_limit = 2048 - CHAR_HEIGHT; 2927 adder->y_offset_pending = 0; 2928 #define WSV (void)wait_status(adder, VSYNC); (void)wait_status(adder, VSYNC) 2929 WSV; 2930 adder->y_scroll_constant = SCROLL_ERASE; 2931 WSV; 2932 adder->y_offset_pending = 864; 2933 WSV; 2934 adder->y_scroll_constant = SCROLL_ERASE; 2935 WSV; 2936 adder->y_offset_pending = 1728; 2937 WSV; 2938 adder->y_scroll_constant = SCROLL_ERASE; 2939 WSV; 2940 adder->y_offset_pending = 0; /* back to normal */ 2941 WSV; 2942 adder->x_limit = MAX_SCREEN_X; 2943 adder->y_limit = MAX_SCREEN_Y + FONT_HEIGHT; 2944 #undef WSV 2945 2946 } /* clear_qd_screen */ 2947 2948 /* 2949 * kernel console output to the glass tty 2950 */ 2951 void 2952 qdcnputc(dev, chr) 2953 dev_t dev; 2954 int chr; 2955 { 2956 2957 /* 2958 * if system is now physical, forget it (ie: crash DUMP) 2959 */ 2960 if ((mfpr(PR_MAPEN) & 1) == 0) 2961 return; 2962 2963 blitc(0, (u_char)(chr & 0xff)); 2964 if ((chr & 0177) == '\n') 2965 blitc(0, '\r'); 2966 2967 } /* qdputc */ 2968 2969 /* 2970 * load the mouse cursor's template RAM bitmap 2971 */ 2972 void 2973 ldcursor(unit, bitmap) 2974 int unit; 2975 short *bitmap; 2976 { 2977 volatile struct dga *dga; 2978 volatile short *temp; 2979 int i; 2980 int curs; 2981 2982 dga = (struct dga *) qdmap[unit].dga; 2983 temp = (short *) qdmap[unit].template; 2984 2985 if (dga->csr & CURS_ENB) { /* if the cursor is enabled.. */ 2986 curs = -1; /* ..note that.. */ 2987 dga->csr &= ~CURS_ENB; /* ..and shut it off */ 2988 } else 2989 curs = 0; 2990 2991 dga->csr &= ~CURS_ENB; /* shut off the cursor */ 2992 2993 temp += (8 * 1024) - 32; /* cursor is 32 WORDS from the end */ 2994 /* ..of the 8k WORD template space */ 2995 for (i = 0; i < 32; ++i) 2996 *temp++ = *bitmap++; 2997 2998 if (curs) { /* if cursor was enabled.. */ 2999 dga->csr |= CURS_ENB; /* ..turn it back on */ 3000 } 3001 3002 } /* ldcursor */ 3003 3004 /* 3005 * Put the console font in the QDSS off-screen memory 3006 */ 3007 void 3008 ldfont(unit) 3009 int unit; 3010 { 3011 volatile struct adder *adder; 3012 3013 int i, j, k, max_chars_line; 3014 short packed; 3015 3016 adder = (struct adder *) qdmap[unit].adder; 3017 3018 /* 3019 * setup VIPER operand control registers 3020 */ 3021 write_ID(adder, MASK_1, 0xFFFF); 3022 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 255); 3023 write_ID(adder, VIPER_Z_LOAD | BACKGROUND_COLOR_Z, 0); 3024 3025 write_ID(adder, SRC1_OCR_B, 3026 EXT_NONE | INT_NONE | ID | BAR_SHIFT_DELAY); 3027 write_ID(adder, SRC2_OCR_B, 3028 EXT_NONE | INT_NONE | ID | BAR_SHIFT_DELAY); 3029 write_ID(adder, DST_OCR_B, 3030 EXT_SOURCE | INT_NONE | NO_ID | NO_BAR_SHIFT_DELAY); 3031 3032 adder->rasterop_mode = DST_WRITE_ENABLE | DST_INDEX_ENABLE | NORMAL; 3033 3034 /* 3035 * load destination data 3036 */ 3037 (void)wait_status(adder, RASTEROP_COMPLETE); 3038 3039 adder->destination_x = FONT_X; 3040 adder->destination_y = FONT_Y; 3041 #if FONT_WIDTH > MAX_SCREEN_X 3042 adder->fast_dest_dx = MAX_SCREEN_X; 3043 #else 3044 adder->fast_dest_dx = FONT_WIDTH; 3045 #endif 3046 adder->slow_dest_dy = CHAR_HEIGHT; 3047 3048 /* 3049 * setup for processor to bitmap xfer */ 3050 3051 write_ID(adder, CS_UPDATE_MASK, 0x0001); 3052 adder->cmd = PBT | OCRB | 2 | DTE | 2; 3053 3054 /* 3055 * Figure out how many characters can be stored on one "line" of 3056 * offscreen memory. 3057 */ 3058 max_chars_line = MAX_SCREEN_X/(CHAR_WIDTH*2); 3059 if ((CHARS/2 + CHARS%2) < max_chars_line) 3060 max_chars_line = CHARS/2 + CHARS%2; 3061 3062 /* 3063 * iteratively do the processor to bitmap xfer */ 3064 3065 for (i = 0; i < ROWS; ++i) { 3066 3067 /* PTOB a scan line */ 3068 3069 for (j = 0, k = i; j < max_chars_line; ++j) { 3070 /* PTOB one scan of a char cell */ 3071 3072 packed = q_font[k]; 3073 k += ROWS; 3074 packed |= ((short)q_font[k] << 8); 3075 k += ROWS; 3076 3077 (void)wait_status(adder, TX_READY); 3078 adder->id_data = packed; 3079 } 3080 } 3081 3082 /* 3083 * (XXX XXX XXX - should remove) 3084 * 3085 * Copy the second row of characters. Subtract the first 3086 * row from the total number. Divide this quantity by 2 3087 * because 2 chars are stored in a short in the PTOB loop 3088 * below. Figure out how many characters can be stored on 3089 * one "line" of offscreen memory 3090 */ 3091 3092 max_chars_line = MAX_SCREEN_X/(CHAR_WIDTH*2); 3093 if ((CHARS/2 + CHARS%2) < max_chars_line) 3094 return; 3095 max_chars_line = (CHARS/2 + CHARS%2) - max_chars_line; /* 95 - 64 */ 3096 /* Paranoia check to see if 3rd row may be needed */ 3097 if (max_chars_line > (MAX_SCREEN_X/(CHAR_WIDTH*2))) 3098 max_chars_line = MAX_SCREEN_X/(CHAR_WIDTH*2); 3099 3100 adder->destination_x = FONT_X; 3101 adder->destination_y = FONT_Y - CHAR_HEIGHT; 3102 adder->fast_dest_dx = max_chars_line * CHAR_WIDTH * 2; 3103 adder->slow_dest_dy = CHAR_HEIGHT; 3104 3105 /* 3106 * setup for processor to bitmap xfer 3107 */ 3108 write_ID(adder, CS_UPDATE_MASK, 0x0001); 3109 adder->cmd = PBT | OCRB | 2 | DTE | 2; 3110 3111 /* 3112 * iteratively do the processor to bitmap xfer 3113 */ 3114 for (i = 0; i < ROWS; ++i) { 3115 /* 3116 * PTOB a scan line 3117 */ 3118 for (j = 0, k = i; j < max_chars_line; ++j) { 3119 /* 3120 * PTOB one scan of a char cell 3121 */ 3122 packed = q_font[k + FONT_OFFSET]; 3123 k += ROWS; 3124 packed |= ((short)q_font[k + FONT_OFFSET] << 8); 3125 k += ROWS; 3126 (void)wait_status(adder, TX_READY); 3127 adder->id_data = packed; 3128 } 3129 } 3130 3131 } /* ldfont */ 3132 3133 3134 /* 3135 * Disable or enable polling. This is used when entering or leaving the 3136 * kernel debugger. 3137 */ 3138 void 3139 qdcnpollc(dev, onoff) 3140 dev_t dev; 3141 int onoff; 3142 { 3143 qdpolling = onoff; 3144 } 3145 3146 3147 /* 3148 * Get a character from the LK201 (polled) 3149 */ 3150 int 3151 qdcngetc(dev) 3152 dev_t dev; 3153 { 3154 short key; 3155 char chr; 3156 volatile struct duart *duart; 3157 3158 duart = (struct duart *) qdmap[0].duart; 3159 3160 /* 3161 * Get a character from the keyboard. 3162 */ 3163 LOOP: 3164 while (!(duart->statusA&RCV_RDY)) 3165 ; 3166 3167 key = duart->dataA; 3168 key &= 0xFF; 3169 3170 /* 3171 * Check for various keyboard errors */ 3172 3173 if (key == LK_POWER_ERROR || key == LK_KDOWN_ERROR || 3174 key == LK_INPUT_ERROR || key == LK_OUTPUT_ERROR) { 3175 printf("Keyboard error, code = %x\n", key); 3176 return(0); 3177 } 3178 3179 if (key < LK_LOWEST) 3180 return(0); 3181 3182 /* 3183 * See if its a state change key 3184 */ 3185 switch (key) { 3186 3187 case LOCK: 3188 q_keyboard.lock ^= 0xffff; /* toggle */ 3189 if (q_keyboard.lock) 3190 led_control(0, LK_LED_ENABLE, LK_LED_LOCK); 3191 else 3192 led_control(0, LK_LED_DISABLE, LK_LED_LOCK); 3193 goto LOOP; 3194 3195 case SHIFT: 3196 q_keyboard.shift ^= 0xFFFF; 3197 goto LOOP; 3198 3199 case CNTRL: 3200 q_keyboard.cntrl ^= 0xFFFF; 3201 goto LOOP; 3202 3203 case ALLUP: 3204 q_keyboard.cntrl = 0; 3205 q_keyboard.shift = 0; 3206 goto LOOP; 3207 3208 case REPEAT: 3209 chr = q_keyboard.last; 3210 break; 3211 3212 /* 3213 * Test for cntrl characters. If set, see if the character 3214 * is elligible to become a control character. 3215 */ 3216 default: 3217 3218 if (q_keyboard.cntrl) { 3219 chr = q_key[key]; 3220 if (chr >= ' ' && chr <= '~') 3221 chr &= 0x1F; 3222 } 3223 else if ( q_keyboard.lock || q_keyboard.shift ) 3224 chr = q_shift_key[key]; 3225 else 3226 chr = q_key[key]; 3227 break; 3228 } 3229 3230 if (chr < ' ' && chr > '~') /* if input is non-displayable */ 3231 return(0); /* ..then pitch it! */ 3232 3233 q_keyboard.last = chr; 3234 3235 /* 3236 * Check for special function keys */ 3237 3238 if (chr & 0x80) /* pitch the function keys */ 3239 return(0); 3240 else 3241 return(chr); 3242 3243 } /* qdgetc */ 3244 3245 /* 3246 * led_control()... twiddle LK-201 LED's 3247 */ 3248 void 3249 led_control(unit, cmd, led_mask) 3250 int unit, cmd, led_mask; 3251 { 3252 int i; 3253 volatile struct duart *duart; 3254 3255 duart = (struct duart *)qdmap[unit].duart; 3256 3257 for (i = 1000; i > 0; --i) { 3258 if (duart->statusA&XMT_RDY) { 3259 duart->dataA = cmd; 3260 break; 3261 } 3262 } 3263 for (i = 1000; i > 0; --i) { 3264 if (duart->statusA&XMT_RDY) { 3265 duart->dataA = led_mask; 3266 break; 3267 } 3268 } 3269 return; 3270 3271 } /* led_control */ 3272 3273 /* 3274 * scroll_up()... move the screen up one character height 3275 */ 3276 void 3277 scroll_up(adder) 3278 volatile struct adder *adder; 3279 { 3280 /* 3281 * setup VIPER operand control registers 3282 */ 3283 (void)wait_status(adder, ADDRESS_COMPLETE); 3284 write_ID(adder, CS_UPDATE_MASK, 0x00FF); /* select all planes */ 3285 write_ID(adder, MASK_1, 0xFFFF); 3286 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 255); 3287 write_ID(adder, VIPER_Z_LOAD | BACKGROUND_COLOR_Z, 0); 3288 write_ID(adder, SRC1_OCR_B, 3289 EXT_NONE | INT_SOURCE | ID | BAR_SHIFT_DELAY); 3290 write_ID(adder, DST_OCR_B, 3291 EXT_NONE | INT_NONE | NO_ID | NO_BAR_SHIFT_DELAY); 3292 /* 3293 * load DESTINATION origin and vectors 3294 */ 3295 adder->fast_dest_dy = 0; 3296 adder->slow_dest_dx = 0; 3297 adder->error_1 = 0; 3298 adder->error_2 = 0; 3299 adder->rasterop_mode = DST_WRITE_ENABLE | NORMAL; 3300 adder->destination_x = 0; 3301 adder->fast_dest_dx = 1024; 3302 adder->destination_y = 0; 3303 adder->slow_dest_dy = 864 - CHAR_HEIGHT; 3304 /* 3305 * load SOURCE origin and vectors 3306 */ 3307 adder->source_1_x = 0; 3308 adder->source_1_dx = 1024; 3309 adder->source_1_y = 0 + CHAR_HEIGHT; 3310 adder->source_1_dy = 864 - CHAR_HEIGHT; 3311 write_ID(adder, LU_FUNCTION_R1, FULL_SRC_RESOLUTION | LF_SOURCE); 3312 adder->cmd = RASTEROP | OCRB | 0 | S1E | DTE; 3313 /* 3314 * do a rectangle clear of last screen line 3315 */ 3316 write_ID(adder, MASK_1, 0xffff); 3317 write_ID(adder, SOURCE, 0xffff); 3318 write_ID(adder,DST_OCR_B, 3319 (EXT_NONE | INT_NONE | NO_ID | NO_BAR_SHIFT_DELAY)); 3320 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 0); 3321 adder->error_1 = 0; 3322 adder->error_2 = 0; 3323 adder->slow_dest_dx = 0; /* set up the width of */ 3324 adder->slow_dest_dy = CHAR_HEIGHT; /* rectangle */ 3325 adder->rasterop_mode = (NORMAL | DST_WRITE_ENABLE) ; 3326 (void)wait_status(adder, RASTEROP_COMPLETE); 3327 adder->destination_x = 0; 3328 adder->destination_y = 864 - CHAR_HEIGHT; 3329 adder->fast_dest_dx = 1024; /* set up the height */ 3330 adder->fast_dest_dy = 0; /* of rectangle */ 3331 write_ID(adder, LU_FUNCTION_R2, (FULL_SRC_RESOLUTION | LF_SOURCE)); 3332 adder->cmd = (RASTEROP | OCRB | LF_R2 | DTE ) ; 3333 3334 } /* scroll_up */ 3335 3336 /* 3337 * init shared memory pointers and structures 3338 */ 3339 void 3340 init_shared(unit) 3341 int unit; 3342 { 3343 volatile struct dga *dga; 3344 3345 dga = (struct dga *) qdmap[unit].dga; 3346 3347 /* 3348 * initialize the event queue pointers and header */ 3349 3350 eq_header[unit] = (struct qdinput *) 3351 ((((int)event_shared & ~(0x01FF)) + 512) 3352 + (EVENT_BUFSIZE * unit)); 3353 eq_header[unit]->curs_pos.x = 0; 3354 eq_header[unit]->curs_pos.y = 0; 3355 dga->x_cursor = TRANX(eq_header[unit]->curs_pos.x); 3356 dga->y_cursor = TRANY(eq_header[unit]->curs_pos.y); 3357 eq_header[unit]->curs_box.left = 0; 3358 eq_header[unit]->curs_box.right = 0; 3359 eq_header[unit]->curs_box.top = 0; 3360 eq_header[unit]->curs_box.bottom = 0; 3361 /* 3362 * assign a pointer to the DMA I/O buffer for this QDSS. 3363 */ 3364 DMAheader[unit] = (struct DMAreq_header *) 3365 (((int)(&DMA_shared[0] + 512) & ~0x1FF) 3366 + (DMAbuf_size * unit)); 3367 DMAheader[unit]->DMAreq = (struct DMAreq *) ((int)DMAheader[unit] 3368 + sizeof(struct DMAreq_header)); 3369 DMAheader[unit]->QBAreg = 0; 3370 DMAheader[unit]->status = 0; 3371 DMAheader[unit]->shared_size = DMAbuf_size; 3372 DMAheader[unit]->used = 0; 3373 DMAheader[unit]->size = 10; /* default = 10 requests */ 3374 DMAheader[unit]->oldest = 0; 3375 DMAheader[unit]->newest = 0; 3376 /* 3377 * assign a pointer to the scroll structure for this QDSS. 3378 */ 3379 scroll[unit] = (struct scroll *) 3380 (((int)(&scroll_shared[0] + 512) & ~0x1FF) 3381 + (sizeof(struct scroll) * unit)); 3382 scroll[unit]->status = 0; 3383 scroll[unit]->viper_constant = 0; 3384 scroll[unit]->y_scroll_constant = 0; 3385 scroll[unit]->y_offset = 0; 3386 scroll[unit]->x_index_pending = 0; 3387 scroll[unit]->y_index_pending = 0; 3388 /* 3389 * assign a pointer to the color map write buffer for this QDSS 3390 */ 3391 color_buf[unit] = (struct color_buf *) 3392 (((int)(&color_shared[0] + 512) & ~0x1FF) 3393 + (COLOR_BUFSIZ * unit)); 3394 color_buf[unit]->status = 0; 3395 color_buf[unit]->count = 0; 3396 3397 } /* init_shared */ 3398 3399 /* 3400 * init the ADDER, VIPER, bitmaps, & color map 3401 */ 3402 void 3403 setup_dragon(unit) 3404 int unit; 3405 { 3406 3407 volatile struct adder *adder; 3408 volatile struct dga *dga; 3409 volatile short *memcsr; 3410 int i; 3411 short top; /* clipping/scrolling boundaries */ 3412 short bottom; 3413 short right; 3414 short left; 3415 volatile short *red; /* color map pointers */ 3416 volatile short *green; 3417 volatile short *blue; 3418 3419 /* 3420 * init for setup 3421 */ 3422 adder = (struct adder *) qdmap[unit].adder; 3423 dga = (struct dga *) qdmap[unit].dga; 3424 memcsr = (short *) qdmap[unit].memcsr; 3425 dga->csr &= ~(DMA_IE | 0x700); /* halt DMA and kill the intrpts */ 3426 *memcsr = SYNC_ON; /* blank screen and turn off LED's */ 3427 adder->command = CANCEL; 3428 /* 3429 * set monitor timing 3430 */ 3431 adder->x_scan_count_0 = 0x2800; 3432 adder->x_scan_count_1 = 0x1020; 3433 adder->x_scan_count_2 = 0x003A; 3434 adder->x_scan_count_3 = 0x38F0; 3435 adder->x_scan_count_4 = 0x6128; 3436 adder->x_scan_count_5 = 0x093A; 3437 adder->x_scan_count_6 = 0x313C; 3438 adder->sync_phase_adj = 0x0100; 3439 adder->x_scan_conf = 0x00C8; 3440 /* 3441 * got a bug in secound pass ADDER! lets take care of it 3442 * 3443 * normally, just use the code in the following bug fix code, but to 3444 * make repeated demos look pretty, load the registers as if there was 3445 * no bug and then test to see if we are getting sync 3446 */ 3447 adder->y_scan_count_0 = 0x135F; 3448 adder->y_scan_count_1 = 0x3363; 3449 adder->y_scan_count_2 = 0x2366; 3450 adder->y_scan_count_3 = 0x0388; 3451 /* 3452 * if no sync, do the bug fix code 3453 */ 3454 if (wait_status(adder, VSYNC) == BAD) { 3455 /* first load all Y scan registers with very short frame and 3456 * wait for scroll service. This guarantees at least one SYNC 3457 * to fix the pass 2 Adder initialization bug (synchronizes 3458 * XCINCH with DMSEEDH) 3459 */ 3460 adder->y_scan_count_0 = 0x01; 3461 adder->y_scan_count_1 = 0x01; 3462 adder->y_scan_count_2 = 0x01; 3463 adder->y_scan_count_3 = 0x01; 3464 /* 3465 * delay at least 1 full frame time 3466 */ 3467 (void)wait_status(adder, VSYNC); 3468 (void)wait_status(adder, VSYNC); 3469 /* 3470 * now load the REAL sync values (in reverse order just to 3471 * be safe. 3472 */ 3473 adder->y_scan_count_3 = 0x0388; 3474 adder->y_scan_count_2 = 0x2366; 3475 adder->y_scan_count_1 = 0x3363; 3476 adder->y_scan_count_0 = 0x135F; 3477 } 3478 *memcsr = SYNC_ON | UNBLANK; /* turn off leds and turn on video */ 3479 /* 3480 * zero the index registers 3481 */ 3482 adder->x_index_pending = 0; 3483 adder->y_index_pending = 0; 3484 adder->x_index_new = 0; 3485 adder->y_index_new = 0; 3486 adder->x_index_old = 0; 3487 adder->y_index_old = 0; 3488 adder->pause = 0; 3489 /* 3490 * set rasterop mode to normal pen down 3491 */ 3492 adder->rasterop_mode = DST_WRITE_ENABLE | DST_INDEX_ENABLE | NORMAL; 3493 /* 3494 * set the rasterop registers to a default values 3495 */ 3496 adder->source_1_dx = 1; 3497 adder->source_1_dy = 1; 3498 adder->source_1_x = 0; 3499 adder->source_1_y = 0; 3500 adder->destination_x = 0; 3501 adder->destination_y = 0; 3502 adder->fast_dest_dx = 1; 3503 adder->fast_dest_dy = 0; 3504 adder->slow_dest_dx = 0; 3505 adder->slow_dest_dy = 1; 3506 adder->error_1 = 0; 3507 adder->error_2 = 0; 3508 /* 3509 * scale factor = UNITY 3510 */ 3511 adder->fast_scale = UNITY; 3512 adder->slow_scale = UNITY; 3513 /* 3514 * set the source 2 parameters 3515 */ 3516 adder->source_2_x = 0; 3517 adder->source_2_y = 0; 3518 adder->source_2_size = 0x0022; 3519 /* 3520 * initialize plane addresses for eight vipers 3521 */ 3522 write_ID(adder, CS_UPDATE_MASK, 0x0001); 3523 write_ID(adder, PLANE_ADDRESS, 0x0000); 3524 write_ID(adder, CS_UPDATE_MASK, 0x0002); 3525 write_ID(adder, PLANE_ADDRESS, 0x0001); 3526 write_ID(adder, CS_UPDATE_MASK, 0x0004); 3527 write_ID(adder, PLANE_ADDRESS, 0x0002); 3528 write_ID(adder, CS_UPDATE_MASK, 0x0008); 3529 write_ID(adder, PLANE_ADDRESS, 0x0003); 3530 write_ID(adder, CS_UPDATE_MASK, 0x0010); 3531 write_ID(adder, PLANE_ADDRESS, 0x0004); 3532 write_ID(adder, CS_UPDATE_MASK, 0x0020); 3533 write_ID(adder, PLANE_ADDRESS, 0x0005); 3534 write_ID(adder, CS_UPDATE_MASK, 0x0040); 3535 write_ID(adder, PLANE_ADDRESS, 0x0006); 3536 write_ID(adder, CS_UPDATE_MASK, 0x0080); 3537 write_ID(adder, PLANE_ADDRESS, 0x0007); 3538 /* 3539 * initialize the external registers. 3540 */ 3541 write_ID(adder, CS_UPDATE_MASK, 0x00FF); 3542 write_ID(adder, CS_SCROLL_MASK, 0x00FF); 3543 /* 3544 * initialize resolution mode 3545 */ 3546 write_ID(adder, MEMORY_BUS_WIDTH, 0x000C); /* bus width = 16 */ 3547 write_ID(adder, RESOLUTION_MODE, 0x0000); /* one bit/pixel */ 3548 /* 3549 * initialize viper registers 3550 */ 3551 write_ID(adder, SCROLL_CONSTANT, SCROLL_ENABLE|VIPER_LEFT|VIPER_UP); 3552 write_ID(adder, SCROLL_FILL, 0x0000); 3553 /* 3554 * set clipping and scrolling limits to full screen 3555 */ 3556 for (i = 1000, adder->status = 0; 3557 i > 0 && !(adder->status&ADDRESS_COMPLETE); --i) 3558 ; 3559 if (i == 0) 3560 printf("qd%d: setup_dragon: timeout on ADDRESS_COMPLETE\n",unit); 3561 top = 0; 3562 bottom = 2048; 3563 left = 0; 3564 right = 1024; 3565 adder->x_clip_min = left; 3566 adder->x_clip_max = right; 3567 adder->y_clip_min = top; 3568 adder->y_clip_max = bottom; 3569 adder->scroll_x_min = left; 3570 adder->scroll_x_max = right; 3571 adder->scroll_y_min = top; 3572 adder->scroll_y_max = bottom; 3573 (void)wait_status(adder, VSYNC); /* wait at LEAST 1 full frame */ 3574 (void)wait_status(adder, VSYNC); 3575 adder->x_index_pending = left; 3576 adder->y_index_pending = top; 3577 adder->x_index_new = left; 3578 adder->y_index_new = top; 3579 adder->x_index_old = left; 3580 adder->y_index_old = top; 3581 3582 for (i = 1000, adder->status = 0; i > 0 && 3583 !(adder->status&ADDRESS_COMPLETE) ; --i) 3584 ; 3585 if (i == 0) 3586 printf("qd%d: setup_dragon: timeout on ADDRESS_COMPLETE\n",unit); 3587 3588 write_ID(adder, LEFT_SCROLL_MASK, 0x0000); 3589 write_ID(adder, RIGHT_SCROLL_MASK, 0x0000); 3590 /* 3591 * set source and the mask register to all ones (ie: white) o 3592 */ 3593 write_ID(adder, SOURCE, 0xFFFF); 3594 write_ID(adder, MASK_1, 0xFFFF); 3595 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 255); 3596 write_ID(adder, VIPER_Z_LOAD | BACKGROUND_COLOR_Z, 0); 3597 /* 3598 * initialize Operand Control Register banks for fill command 3599 */ 3600 write_ID(adder, SRC1_OCR_A, EXT_NONE | INT_M1_M2 | NO_ID | WAIT); 3601 write_ID(adder, SRC2_OCR_A, EXT_NONE | INT_SOURCE | NO_ID | NO_WAIT); 3602 write_ID(adder, DST_OCR_A, EXT_NONE | INT_NONE | NO_ID | NO_WAIT); 3603 write_ID(adder, SRC1_OCR_B, EXT_NONE | INT_SOURCE | NO_ID | WAIT); 3604 write_ID(adder, SRC2_OCR_B, EXT_NONE | INT_M1_M2 | NO_ID | NO_WAIT); 3605 write_ID(adder, DST_OCR_B, EXT_NONE | INT_NONE | NO_ID | NO_WAIT); 3606 /* 3607 * init Logic Unit Function registers, (these are just common values, 3608 * and may be changed as required). 3609 */ 3610 write_ID(adder, LU_FUNCTION_R1, FULL_SRC_RESOLUTION | LF_SOURCE); 3611 write_ID(adder, LU_FUNCTION_R2, FULL_SRC_RESOLUTION | LF_SOURCE | 3612 INV_M1_M2); 3613 write_ID(adder, LU_FUNCTION_R3, FULL_SRC_RESOLUTION | LF_D_OR_S); 3614 write_ID(adder, LU_FUNCTION_R4, FULL_SRC_RESOLUTION | LF_D_XOR_S); 3615 /* 3616 * load the color map for black & white 3617 */ 3618 for (i = 0, adder->status = 0; i < 10000 && !(adder->status&VSYNC); ++i) 3619 ; 3620 3621 if (i == 0) 3622 printf("qd%d: setup_dragon: timeout on VSYNC\n", unit); 3623 3624 red = (short *) qdmap[unit].red; 3625 green = (short *) qdmap[unit].green; 3626 blue = (short *) qdmap[unit].blue; 3627 3628 *red++ = 0x00; /* black */ 3629 *green++ = 0x00; 3630 *blue++ = 0x00; 3631 3632 *red-- = 0xFF; /* white */ 3633 *green-- = 0xFF; 3634 *blue-- = 0xFF; 3635 3636 /* 3637 * set color map for mouse cursor 3638 */ 3639 3640 red += 254; 3641 green += 254; 3642 blue += 254; 3643 3644 *red++ = 0x00; /* black */ 3645 *green++ = 0x00; 3646 *blue++ = 0x00; 3647 3648 *red = 0xFF; /* white */ 3649 *green = 0xFF; 3650 *blue = 0xFF; 3651 3652 } /* setup_dragon */ 3653 3654 /* 3655 * Init the DUART and set defaults in input 3656 */ 3657 void 3658 setup_input(unit) 3659 int unit; 3660 { 3661 volatile struct duart *duart; /* DUART register structure pointer */ 3662 int i, bits; 3663 char id_byte; 3664 3665 duart = (struct duart *) qdmap[unit].duart; 3666 duart->imask = 0; 3667 3668 /* 3669 * setup the DUART for kbd & pointing device 3670 */ 3671 duart->cmdA = RESET_M; /* reset mode reg ptr for kbd */ 3672 duart->modeA = 0x13; /* 8 bits, no parity, rcv IE, */ 3673 /* no RTS control,char error mode */ 3674 duart->modeA = 0x07; /* 1 stop bit,CTS does not IE XMT */ 3675 /* no RTS control,no echo or loop */ 3676 duart->cmdB = RESET_M; /* reset mode reg pntr for host */ 3677 duart->modeB = 0x07; /* 8 bits, odd parity, rcv IE.. */ 3678 /* ..no RTS cntrl, char error mode */ 3679 duart->modeB = 0x07; /* 1 stop bit,CTS does not IE XMT */ 3680 /* no RTS control,no echo or loop */ 3681 duart->auxctl = 0x00; /* baud rate set 1 */ 3682 duart->clkselA = 0x99; /* 4800 baud for kbd */ 3683 duart->clkselB = 0x99; /* 4800 baud for mouse */ 3684 3685 /* reset everything for keyboard */ 3686 3687 for (bits = RESET_M; bits < START_BREAK; bits += 0x10) 3688 duart->cmdA = bits; 3689 3690 /* reset everything for host */ 3691 3692 for (bits = RESET_M; bits < START_BREAK; bits += 0x10) 3693 duart->cmdB = bits; 3694 3695 duart->cmdA = EN_RCV | EN_XMT; /* enbl xmt & rcv for kbd */ 3696 duart->cmdB = EN_RCV | EN_XMT; /* enbl xmt & rcv for pointer device */ 3697 3698 /* 3699 * init keyboard defaults (DUART channel A) 3700 */ 3701 for (i = 500; i > 0; --i) { 3702 if (duart->statusA&XMT_RDY) { 3703 duart->dataA = LK_DEFAULTS; 3704 break; 3705 } 3706 } 3707 3708 for (i = 100000; i > 0; --i) { 3709 if (duart->statusA&RCV_RDY) { 3710 break; 3711 } 3712 } 3713 3714 if (duart->dataA) /* flush the ACK */ 3715 ; 3716 3717 /* 3718 * identify the pointing device 3719 */ 3720 for (i = 500; i > 0; --i) { 3721 if (duart->statusB&XMT_RDY) { 3722 duart->dataB = SELF_TEST; 3723 break; 3724 } 3725 } 3726 3727 /* 3728 * wait for 1st byte of self test report */ 3729 3730 for (i = 100000; i > 0; --i) { 3731 if (duart->statusB&RCV_RDY) { 3732 break; 3733 } 3734 } 3735 3736 if (i == 0) { 3737 printf("qd[%d]: setup_input: timeout on 1st byte of self test\n" 3738 ,unit); 3739 goto OUT; 3740 } 3741 3742 if (duart->dataB) 3743 ; 3744 3745 /* 3746 * wait for ID byte of self test report 3747 */ 3748 for (i = 100000; i > 0; --i) { 3749 if (duart->statusB&RCV_RDY) { 3750 break; 3751 } 3752 } 3753 3754 if (i == 0) { 3755 printf("qd[%d]: setup_input: timeout on 2nd byte of self test\n", unit); 3756 goto OUT; 3757 } 3758 3759 id_byte = duart->dataB; 3760 3761 /* 3762 * wait for other bytes to come in 3763 */ 3764 for (i = 100000; i > 0; --i) { 3765 if (duart->statusB & RCV_RDY) { 3766 if (duart->dataB) 3767 ; 3768 break; 3769 } 3770 } 3771 if (i == 0) { 3772 printf("qd[%d]: setup_input: timeout on 3rd byte of self test\n", unit); 3773 goto OUT; 3774 } 3775 for (i = 100000; i > 0; --i) { 3776 if (duart->statusB&RCV_RDY) { 3777 if (duart->dataB) 3778 ; 3779 break; 3780 } 3781 } 3782 if (i == 0) { 3783 printf("qd[%d]: setup_input: timeout on 4th byte of self test\n", unit); 3784 goto OUT; 3785 } 3786 /* 3787 * flag pointing device type and set defaults 3788 */ 3789 for (i=100000; i>0; --i) 3790 ; /*XXX*/ 3791 3792 if ((id_byte & 0x0F) != TABLET_ID) { 3793 qdflags[unit].pntr_id = MOUSE_ID; 3794 3795 for (i = 500; i > 0; --i) { 3796 if (duart->statusB&XMT_RDY) { 3797 duart->dataB = INC_STREAM_MODE; 3798 break; 3799 } 3800 } 3801 } 3802 else { 3803 qdflags[unit].pntr_id = TABLET_ID; 3804 3805 for (i = 500; i > 0; --i) { 3806 if (duart->statusB&XMT_RDY) { 3807 duart->dataB = T_STREAM; 3808 break; 3809 } 3810 } 3811 } 3812 OUT: 3813 duart->imask = qdflags[unit].duart_imask; 3814 3815 } /* setup_input */ 3816 3817 /* 3818 * delay for at least one display frame time 3819 * 3820 * return: BAD means that we timed out without ever seeing the 3821 * vertical sync status bit 3822 * GOOD otherwise 3823 */ 3824 int 3825 wait_status(adder, mask) 3826 volatile struct adder *adder; 3827 int mask; 3828 { 3829 int i; 3830 3831 for (i = 10000, adder->status = 0 ; i > 0 && 3832 !(adder->status&mask) ; --i) 3833 ; 3834 3835 if (i == 0) { 3836 printf("wait_status: timeout polling for 0x%x in adder->status\n", mask); 3837 return(BAD); 3838 } 3839 3840 return(GOOD); 3841 3842 } /* wait_status */ 3843 3844 /* 3845 * write out onto the ID bus 3846 */ 3847 void 3848 write_ID(adder, adrs, data) 3849 volatile struct adder *adder; 3850 short adrs; 3851 short data; 3852 { 3853 int i; 3854 3855 for (i = 100000, adder->status = 0 ; 3856 i > 0 && !(adder->status&ADDRESS_COMPLETE) ; --i) 3857 ; 3858 3859 if (i == 0) 3860 goto ERR; 3861 3862 for (i = 100000, adder->status = 0 ; 3863 i > 0 && !(adder->status&TX_READY) ; --i) 3864 ; 3865 3866 if (i > 0) { 3867 adder->id_data = data; 3868 adder->command = ID_LOAD | adrs; 3869 return ; 3870 } 3871 3872 ERR: 3873 printf("write_ID: timeout trying to write to VIPER\n"); 3874 return ; 3875 3876 } /* write_ID */ 3877