1 /* $NetBSD: qd.c,v 1.62 2023/08/01 21:26:28 andvar 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 1.62 2023/08/01 21:26:28 andvar 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 <dev/cons.h> 77 78 #include <sys/bus.h> 79 #include <machine/scb.h> 80 81 #ifdef __vax__ 82 #include <machine/sid.h> 83 #include <sys/cpu.h> 84 #include <machine/pte.h> 85 #endif 86 87 #include <dev/qbus/ubavar.h> 88 89 #include <dev/qbus/qduser.h> 90 #include <dev/qbus/qdreg.h> 91 #include <dev/qbus/qdioctl.h> 92 93 #include "ioconf.h" 94 95 /* 96 * QDSS driver status flags for tracking operational state 97 */ 98 struct qdflags { 99 u_int inuse; /* which minor dev's are in use now */ 100 u_int config; /* I/O page register content */ 101 u_int mapped; /* user mapping status word */ 102 u_int kernel_loop; /* if kernel console is redirected */ 103 u_int user_dma; /* DMA from user space in progress */ 104 u_short pntr_id; /* type code of pointing device */ 105 u_short duart_imask; /* shadowing for duart intrpt mask reg */ 106 u_short adder_ie; /* shadowing for adder intrpt enbl reg */ 107 u_short curs_acc; /* cursor acceleration factor */ 108 u_short curs_thr; /* cursor acceleration threshold level */ 109 u_short tab_res; /* tablet resolution factor */ 110 u_short selmask; /* mask for active qd select entries */ 111 }; 112 113 /* 114 * Softc struct to keep track of all states in this driver. 115 */ 116 struct qd_softc { 117 bus_space_tag_t sc_iot; 118 bus_space_handle_t sc_ioh; 119 bus_dma_tag_t sc_dmat; 120 }; 121 122 /* 123 * bit definitions for 'inuse' entry 124 */ 125 #define CONS_DEV 0x01 126 #define GRAPHIC_DEV 0x04 127 128 /* 129 * bit definitions for 'mapped' member of flag structure 130 */ 131 #define MAPDEV 0x01 /* hardware is mapped */ 132 #define MAPDMA 0x02 /* DMA buffer mapped */ 133 #define MAPEQ 0x04 /* event queue buffer mapped */ 134 #define MAPSCR 0x08 /* scroll param area mapped */ 135 #define MAPCOLOR 0x10 /* color map writing buffer mapped */ 136 137 /* 138 * constants used in shared memory operations 139 */ 140 #define EVENT_BUFSIZE 1024 /* # of bytes per device's event buffer */ 141 #define MAXEVENTS ( (EVENT_BUFSIZE - sizeof(struct qdinput)) \ 142 / sizeof(struct _vs_event) ) 143 #define DMA_BUFSIZ (1024 * 10) 144 #define COLOR_BUFSIZ ((sizeof(struct color_buf) + 512) & ~0x01FF) 145 146 /* 147 * reference to an array of "uba_device" structures built by the auto 148 * configuration program. The uba_device structure describes the device 149 * sufficiently for the driver to talk to it. The auto configuration code 150 * fills in the uba_device structures (located in ioconf.c) from user 151 * maintained info. 152 */ 153 struct uba_device *qdinfo[NQD]; /* array of pntrs to each QDSS's */ 154 struct tty *qd_tty[NQD*4]; /* teletype structures for each.. */ 155 volatile char *qvmem[NQD]; 156 volatile struct pte *QVmap[NQD]; 157 #define CHUNK (64 * 1024) 158 #define QMEMSIZE (1024 * 1024 * 4) /* 4 meg */ 159 160 /* 161 * static storage used by multiple functions in this code 162 */ 163 int Qbus_unmap[NQD]; /* Qbus mapper release code */ 164 struct qdmap qdmap[NQD]; /* QDSS register map structure */ 165 struct qdflags qdflags[NQD]; /* QDSS register map structure */ 166 void *qdbase[NQD]; /* base address of each QDSS unit */ 167 short qdopened[NQD]; /* graphics device is open exclusive use */ 168 169 /* 170 * the array "event_shared[]" is made up of a number of event queue buffers 171 * equal to the number of QDSS's configured into the running kernel (NQD). 172 * Each event queue buffer begins with an event queue header (struct qdinput) 173 * followed by a group of event queue entries (struct _vs_event). The array 174 * "*eq_header[]" is an array of pointers to the start of each event queue 175 * buffer in "event_shared[]". 176 */ 177 #define EQSIZE ((EVENT_BUFSIZE * NQD) + 512) 178 179 char event_shared[EQSIZE]; /* reserve space for event bufs */ 180 struct qdinput *eq_header[NQD]; /* event queue header pntrs */ 181 182 /* 183 * This allocation method reserves enough memory pages for NQD shared DMA I/O 184 * buffers. Each buffer must consume an integral number of memory pages to 185 * guarantee that a following buffer will begin on a page boundary. Also, 186 * enough space is allocated so that the FIRST I/O buffer can start at the 187 * 1st page boundary after "&DMA_shared". Page boundaries are used so that 188 * memory protections can be turned on/off for individual buffers. 189 */ 190 #define IOBUFSIZE ((DMA_BUFSIZ * NQD) + 512) 191 192 char DMA_shared[IOBUFSIZE]; /* reserve I/O buffer space */ 193 struct DMAreq_header *DMAheader[NQD]; /* DMA buffer header pntrs */ 194 195 /* 196 * The driver assists a client in scroll operations by loading dragon 197 * registers from an interrupt service routine. The loading is done using 198 * parameters found in memory shared between the driver and its client. 199 * The scroll parameter structures are ALL located in the same memory page 200 * for reasons of memory economy. 201 */ 202 char scroll_shared[2 * 512]; /* reserve space for scroll structs */ 203 struct scroll *scroll[NQD]; /* pointers to scroll structures */ 204 205 /* 206 * the driver is programmable to provide the user with color map write 207 * services at VSYNC interrupt time. At interrupt time the driver loads 208 * the color map with any user-requested load data found in shared memory 209 */ 210 #define COLOR_SHARED ((COLOR_BUFSIZ * NQD) + 512) 211 212 char color_shared[COLOR_SHARED]; /* reserve space: color bufs */ 213 struct color_buf *color_buf[NQD]; /* pointers to color bufs */ 214 215 /* 216 * mouse input event structures 217 */ 218 struct mouse_report last_rep[NQD]; 219 struct mouse_report current_rep[NQD]; 220 221 struct selinfo qdrsel[NQD]; /* process waiting for select */ 222 struct _vs_cursor cursor[NQD]; /* console cursor */ 223 int qdcount = 0; /* count of successfully probed qd's */ 224 int nNQD = NQD; 225 int DMAbuf_size = DMA_BUFSIZ; 226 int QDlast_DMAtype; /* type of the last DMA operation */ 227 228 /* 229 * macro to get system time. Used to time stamp event queue entries 230 */ 231 #define TOY ((time.tv_sec * 100) + (time.tv_usec / 10000)) 232 233 void qd_attach(device_t, device_t, void *); 234 static int qd_match(device_t, cfdata_t, void *); 235 236 static void qddint(void *); /* DMA gate array intrpt service */ 237 static void qdaint(void *); /* Dragon ADDER intrpt service */ 238 static void qdiint(void *); 239 240 #define QDPRIOR (PZERO-1) /* must be negative */ 241 #define FALSE 0 242 #ifdef TRUE 243 #undef TRUE 244 #endif 245 #define TRUE ~FALSE 246 #define BAD -1 247 #define GOOD 0 248 249 /* 250 * macro to create a system virtual page number from system virtual adrs 251 */ 252 #define VTOP(x) (((int)x & ~0xC0000000) >> VAX_PGSHIFT) 253 254 /* 255 * QDSS register address offsets from start of QDSS address space 256 */ 257 #define QDSIZE (52 * 1024) /* size of entire QDSS foot print */ 258 #define TMPSIZE (16 * 1024) /* template RAM is 8k SHORT WORDS */ 259 #define TMPSTART 0x8000 /* offset of template RAM from base adrs */ 260 #define REGSIZE (5 * 512) /* regs touch 2.5k (5 pages) of addr space */ 261 #define REGSTART 0xC000 /* offset of reg pages from base adrs */ 262 #define ADDER (REGSTART+0x000) 263 #define DGA (REGSTART+0x200) 264 #define DUART (REGSTART+0x400) 265 #define MEMCSR (REGSTART+0x800) 266 #define CLRSIZE (3 * 512) /* color map size */ 267 #define CLRSTART (REGSTART+0xA00) /* color map start offset from base */ 268 /* 0x0C00 really */ 269 #define RED (CLRSTART+0x000) 270 #define BLUE (CLRSTART+0x200) 271 #define GREEN (CLRSTART+0x400) 272 273 274 /* 275 * QDSS minor device numbers. The *real* minor device numbers are in 276 * the bottom two bits of the major/minor device spec. Bits 2 and up are 277 * used to specify the QDSS device number (ie: which one?) 278 */ 279 280 #define CONS 0 281 #define GRAPHIC 2 282 283 /* 284 * console cursor bitmap (white block cursor) 285 */ 286 short cons_cursor[32] = { 287 /* A */ 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 288 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 289 /* B */ 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 290 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF 291 }; 292 293 /* 294 * constants used in font operations 295 */ 296 #define CHARS 190 /* # of chars in the font */ 297 #define CHAR_HEIGHT 15 /* char height in pixels */ 298 #define CHAR_WIDTH 8 /* char width in pixels*/ 299 #define FONT_WIDTH (CHAR_WIDTH * CHARS) /* font width in pixels */ 300 #define ROWS CHAR_HEIGHT 301 #define FONT_X 0 /* font's off screen adrs */ 302 #define FONT_Y (2048 - CHAR_HEIGHT) 303 304 /* Offset to second row characters (XXX - should remove) */ 305 #define FONT_OFFSET ((MAX_SCREEN_X/CHAR_WIDTH)*CHAR_HEIGHT) 306 307 extern char q_font[]; /* reference font object code */ 308 extern u_short q_key[]; /* reference key xlation tables */ 309 extern u_short q_shift_key[]; 310 extern char *q_special[]; 311 312 /* 313 * definitions for cursor acceleration reporting 314 */ 315 #define ACC_OFF 0x01 /* acceleration is inactive */ 316 317 /* 318 * virtual console support. 319 */ 320 extern struct cdevsw *consops; 321 cons_decl(qd); 322 void setup_dragon(int); 323 void init_shared(int); 324 void clear_qd_screen(int); 325 void ldfont(int); 326 void ldcursor(int, short *); 327 void setup_input(int); 328 void blitc(int, u_char); 329 void scroll_up(volatile struct adder *); 330 void write_ID(volatile struct adder *, short, short); 331 int wait_status(volatile struct adder *, int); 332 void led_control(int, int, int); 333 void qdstart(struct tty *); 334 void qdearly(void); 335 int qdpolling = 0; 336 337 dev_type_open(qdopen); 338 dev_type_close(qdclose); 339 dev_type_read(qdread); 340 dev_type_write(qdwrite); 341 dev_type_ioctl(qdioctl); 342 dev_type_stop(qdstop); 343 dev_type_poll(qdpoll); 344 dev_type_kqfilter(qdkqfilter); 345 346 const struct cdevsw qd_cdevsw = { 347 .d_open = qdopen, 348 .d_close = qdclose, 349 .d_read = qdread, 350 .d_write = qdwrite, 351 .d_ioctl = qdioctl, 352 .d_stop = qdstop, 353 .d_tty = notty, 354 .d_poll = qdpoll, 355 .d_mmap = nommap, 356 .d_kqfilter = qdkqfilter, 357 .d_discard = nodiscard, 358 .d_flag = 0 359 }; 360 361 /* 362 * LK-201 state storage for input console keyboard conversion to ASCII 363 */ 364 struct q_keyboard { 365 int shift; /* state variables */ 366 int cntrl; 367 int lock; 368 int lastcode; /* last keycode typed */ 369 unsigned kup[8]; /* bits for each keycode*/ 370 unsigned dkeys[8]; /* down/up mode keys */ 371 char last; /* last character */ 372 } q_keyboard; 373 374 /* 375 * tty settings on first open 376 */ 377 #define IFLAG (BRKINT|ISTRIP|IXON|IXANY|ICRNL|IMAXBEL) 378 #define OFLAG (OPOST|OXTABS|ONLCR) 379 #define LFLAG (ISIG|ICANON|ECHO|IEXTEN) 380 #define CFLAG (PARENB|CREAD|CS7|CLOCAL) 381 382 /* 383 * Kernel virtual addresses where we can map in the QBUS io page and the 384 * QDSS memory during qdcninit. pmap_bootstrap fills this in. 385 */ 386 void *qd_ubaio; 387 388 /* This is the QDSS unit 0 CSR. It is hard-coded in here so that the 389 * QDSS can be used as the console. The console routines don't get 390 * any config info. The ROM also autodetects at this address, so 391 * the console QDSS should be at this address. Furthermore, nothing 392 * else shuld be at this address instead because that would confuse the 393 * ROM and this driver. 394 */ 395 #define QDSSCSR 0x1F00 396 397 volatile u_short *qdaddr; /* Virtual address for QDSS CSR */ 398 399 /* 400 * This flag is set to 1 if the console initialization (qdcninit) 401 * has been performed on qd0. That initialization is required and must 402 * be done before the device probe routine. 403 */ 404 int qd0cninited = 0, qd0iscons = 0; 405 406 /* 407 * Do early check if the qdss is console. If not; don't allocate 408 * any memory for it in bootstrap. 409 */ 410 void 411 qdearly(void) 412 { 413 extern vaddr_t virtual_avail; 414 int tmp; 415 416 /* Make sure we're running on a system that can have a QDSS */ 417 if (vax_boardtype == VAX_BTYP_630) { 418 /* Now check some undocumented flag */ 419 if ((*(int *)(0x200B801E) & 0x60) == 0) 420 /* The KA630 isn't using a QDSS as the console, 421 * so we won't either */ 422 return; 423 } else if (vax_boardtype != VAX_BTYP_650) 424 return; 425 426 /* How to check for console on KA650? We assume that if there is a 427 * QDSS, it is console. 428 */ 429 #define QIOPAGE 0x20000000 /* XXX */ 430 #define UBAIOPAGES 16 431 tmp = QIOPAGE + ubdevreg(QDSSCSR); 432 if (badaddr((void *)tmp, sizeof(short))) 433 return; 434 435 MAPVIRT(qvmem[0], 64 * 1024 * NQD / VAX_NBPG); 436 MAPVIRT(qd_ubaio, 16); 437 pmap_map((int)qd_ubaio, QIOPAGE, QIOPAGE + UBAIOPAGES * VAX_NBPG, 438 VM_PROT_READ|VM_PROT_WRITE); 439 qdaddr = (u_short *)((u_int)qd_ubaio + ubdevreg(QDSSCSR)); 440 qd0iscons = 1; 441 } 442 443 void 444 qdcnprobe(struct consdev *cndev) 445 { 446 int i; 447 448 cndev->cn_pri = CN_DEAD; 449 450 if (mfpr(PR_MAPEN) == 0) 451 return; /* Cannot use qd if vm system is OFF */ 452 453 if (!qd0iscons) 454 return; 455 456 /* Find the console device corresponding to the console QDSS */ 457 cndev->cn_dev = makedev(cdevsw_lookup_major(&qd_cdevsw), 0); 458 cndev->cn_pri = CN_INTERNAL; 459 return; 460 } 461 462 463 /* 464 * Init QDSS as console (before probe routine) 465 */ 466 void 467 qdcninit(struct consdev *cndev) 468 { 469 void *phys_adr; /* physical QDSS base adrs */ 470 u_int mapix; /* index into QVmap[] array */ 471 int unit; 472 473 /* qdaddr must point to CSR for this unit! */ 474 475 /* The console QDSS is QDSS unit 0 */ 476 unit = 0; 477 478 /* 479 * Map q-bus memory used by qdss. (separate map) 480 */ 481 mapix = QMEMSIZE - (CHUNK * (unit + 1)); 482 #define QMEM 0x30000000 483 (int)phys_adr = QMEM + mapix; 484 pmap_map((int)(qvmem[0]), (int)phys_adr, (int)(phys_adr + (CHUNK*NQD)), 485 VM_PROT_READ|VM_PROT_WRITE); 486 487 /* 488 * Set QVmap to point to page table entries for what we just 489 * mapped. 490 */ 491 QVmap[0] = (struct pte *)kvtopte(qvmem[0]); 492 493 /* 494 * tell QDSS which Q memory address base to decode 495 * (shifted right 16 bits - its in 64K units) 496 */ 497 *qdaddr = (u_short)((int)mapix >> 16); 498 qdflags[unit].config = *(u_short *)qdaddr; 499 500 /* 501 * load qdmap struct with the virtual addresses of the QDSS elements 502 */ 503 qdbase[unit] = (void *) (qvmem[0]); 504 qdmap[unit].template = qdbase[unit] + TMPSTART; 505 qdmap[unit].adder = qdbase[unit] + ADDER; 506 qdmap[unit].dga = qdbase[unit] + DGA; 507 qdmap[unit].duart = qdbase[unit] + DUART; 508 qdmap[unit].memcsr = qdbase[unit] + MEMCSR; 509 qdmap[unit].red = qdbase[unit] + RED; 510 qdmap[unit].blue = qdbase[unit] + BLUE; 511 qdmap[unit].green = qdbase[unit] + GREEN; 512 513 qdflags[unit].duart_imask = 0; /* init shadow variables */ 514 515 /* 516 * init the QDSS 517 */ 518 519 *(short *)qdmap[unit].memcsr |= SYNC_ON; /* once only: turn on sync */ 520 521 cursor[unit].x = 0; 522 cursor[unit].y = 0; 523 init_shared(unit); /* init shared memory */ 524 setup_dragon(unit); /* init the ADDER/VIPER stuff */ 525 clear_qd_screen(unit); /* clear the screen */ 526 ldfont(unit); /* load the console font */ 527 ldcursor(unit, cons_cursor); /* load default cursor map */ 528 setup_input(unit); /* init the DUART */ 529 selinit(&qdrsel[unit]); 530 531 /* Set flag so probe knows */ 532 qd0cninited = 1; 533 } /* qdcninit */ 534 535 /* see <sys/device.h> */ 536 CFATTACH_DECL_NEW(qd, sizeof(struct qd_softc), 537 qd_match, qd_attach, NULL, NULL); 538 539 #define QD_RCSR(reg) \ 540 bus_space_read_2(sc->sc_iot, sc->sc_ioh, reg) 541 #define QD_WCSR(reg, val) \ 542 bus_space_write_2(sc->sc_iot, sc->sc_ioh, reg, val) 543 544 /* 545 * Configure QDSS into Q memory and make it intrpt. 546 * 547 * side effects: QDSS gets mapped into Qbus memory space at the first 548 * vacant 64kb boundary counting back from the top of 549 * Qbus memory space (qvmem+4mb) 550 * 551 * return: QDSS bus request level and vector address returned in 552 * registers by UNIX convention. 553 * 554 */ 555 static int 556 qd_match(device_t parent, cfdata_t match, void *aux) 557 { 558 struct qd_softc ssc; 559 struct qd_softc *sc = &ssc; 560 struct uba_attach_args *ua = aux; 561 struct uba_softc *uh = device_private(parent); 562 int unit; 563 volatile struct dga *dga; /* pointer to gate array structure */ 564 int vector; 565 #ifdef notdef 566 int *ptep; /* page table entry pointer */ 567 void *phys_adr; /* physical QDSS base adrs */ 568 u_int mapix; 569 #endif 570 571 /* Create a "fake" softc with only a few fields used. */ 572 sc->sc_iot = ua->ua_iot; 573 sc->sc_ioh = ua->ua_ioh; 574 sc->sc_dmat = ua->ua_dmat; 575 /* 576 * calculate board unit number from I/O page register address 577 */ 578 unit = (int) (((int)sc->sc_ioh >> 1) & 0x0007); 579 580 /* 581 * QDSS regs must be mapped to Qbus memory space at a 64kb 582 * physical boundary. The Qbus memory space is mapped into 583 * the system memory space at config time. After config 584 * runs, "qvmem[0]" (ubavar.h) holds the system virtual adrs 585 * of the start of Qbus memory. The Qbus memory page table 586 * is found via an array of pte ptrs called "QVmap[]" (ubavar.h) 587 * which is also loaded at config time. These are the 588 * variables used below to find a vacant 64kb boundary in 589 * Qbus memory, and load its corresponding physical adrs 590 * into the QDSS's I/O page CSR. 591 */ 592 593 /* 594 * Only if QD is the graphics device. 595 */ 596 597 /* if this QDSS is NOT the console, then do init here.. */ 598 599 if (unit != 0) { 600 printf("qd: can't support two qdss's (yet)\n"); 601 #ifdef notdef /* can't test */ 602 if (v_consputc != qdputc || unit != 0) { 603 604 /* 605 * read QDSS config info 606 */ 607 qdflags[unit].config = *(u_short *)reg; 608 609 /* 610 * find an empty 64kb adrs boundary 611 */ 612 613 qdbase[unit] = (void *) (qvmem[0] + QMEMSIZE - CHUNK); 614 615 /* 616 * find the cpusw entry that matches this machine. 617 */ 618 cpup = &cpusw[cpu]; 619 while (!(BADADDR(qdbase[unit], sizeof(short)))) 620 qdbase[unit] -= CHUNK; 621 622 /* 623 * tell QDSS which Q memory address base to decode 624 */ 625 mapix = (int) (VTOP(qdbase[unit]) - VTOP(qvmem[0])); 626 ptep = (int *) QVmap[0] + mapix; 627 phys_adr = (void *)(((int)*ptep&0x001FFFFF)<<VAX_PGSHIFT); 628 *(u_short *)reg = (u_short) ((int)phys_adr >> 16); 629 630 /* 631 * load QDSS adrs map with system addresses 632 * of device regs 633 */ 634 qdmap[unit].template = qdbase[unit] + TMPSTART; 635 qdmap[unit].adder = qdbase[unit] + ADDER; 636 qdmap[unit].dga = qdbase[unit] + DGA; 637 qdmap[unit].duart = qdbase[unit] + DUART; 638 qdmap[unit].memcsr = qdbase[unit] + MEMCSR; 639 qdmap[unit].red = qdbase[unit] + RED; 640 qdmap[unit].blue = qdbase[unit] + BLUE; 641 qdmap[unit].green = qdbase[unit] + GREEN; 642 643 /* device init */ 644 645 cursor[unit].x = 0; 646 cursor[unit].y = 0; 647 init_shared(unit); /* init shared memory */ 648 setup_dragon(unit); /* init the ADDER/VIPER stuff */ 649 ldcursor(unit, cons_cursor); /* load default cursor map */ 650 setup_input(unit); /* init the DUART */ 651 clear_qd_screen(unit); 652 ldfont(unit); /* load the console font */ 653 654 /* once only: turn on sync */ 655 656 *(short *)qdmap[unit].memcsr |= SYNC_ON; 657 } 658 #endif /*notdef*/ 659 } else { 660 /* We are dealing with qd0 */ 661 662 if (!qd0cninited) { 663 /* 664 * qd0 has not been initialized as the console. 665 * We need to do some initialization now 666 * 667 * XXX 668 * However, if the QDSS is not the console then 669 * that stupid undocumented bit (see qdcnprobe) 670 * is cleared. Then the QDSS refuses to work. 671 * (What did the ROM do to it!?) 672 * XXX 673 */ 674 return 0; 675 676 #if 0 677 qdaddr = (void *)reg; 678 679 /* Lame probe for QDSS. Should be ok for qd0 */ 680 if (badaddr((void *)qdaddr, sizeof(short))) 681 return 0; 682 683 qdcninit(NULL); 684 #endif 685 } 686 } 687 688 689 /* 690 * The QDSS interrupts at HEX vectors xx0 (DMA) xx4 691 * (ADDER) and xx8 (DUART). Therefore, we take three 692 * vectors from the vector pool, and then continue 693 * to take them until we get a xx0 HEX vector. The 694 * pool provides vectors in contiguous descending 695 * order. 696 */ 697 698 vector = (uh->uh_lastiv -= 4*3); /* take three vectors */ 699 700 while (vector & 0x0F) { /* if lo nibble != 0.. */ 701 /* ..take another vector */ 702 vector = (uh->uh_lastiv -= 4); 703 } 704 705 /* 706 * setup DGA to do a DMA interrupt (transfer count = 0) 707 */ 708 dga = (struct dga *) qdmap[unit].dga; 709 dga->csr = (short) HALT; /* disable everything */ 710 dga->ivr = (short) vector; /* load intrpt base vector */ 711 dga->bytcnt_lo = (short) 0; /* DMA xfer count = 0 */ 712 dga->bytcnt_hi = (short) 0; 713 714 /* 715 * turn on DMA interrupts 716 */ 717 dga->csr &= ~SET_DONE_FIFO; 718 dga->csr |= DMA_IE | DL_ENB; 719 720 DELAY(20000); /* wait for the intrpt */ 721 dga->csr = HALT; /* stop the wheels */ 722 723 /* 724 * score this as an existing qdss 725 */ 726 qdcount++; 727 728 return 1; 729 } /* qdprobe */ 730 731 732 void 733 qd_attach(device_t parent, device_t self, void *aux) 734 { 735 struct uba_attach_args *ua = aux; 736 int unit; /* QDSS module # for this call */ 737 738 printf("\n"); 739 740 unit = device_unit(self); /* get QDSS number */ 741 742 /* Set interrupt vectors for interrupt handlers */ 743 744 uba_intr_establish(ua->ua_icookie, ua->ua_cvec , qddint, self); 745 uba_intr_establish(ua->ua_icookie, ua->ua_cvec + 4, qdaint, self); 746 uba_intr_establish(ua->ua_icookie, ua->ua_cvec + 8, qdiint, self); 747 748 /* 749 * init "qdflags[]" for this QDSS 750 */ 751 qdflags[unit].inuse = 0; /* init inuse variable EARLY! */ 752 qdflags[unit].mapped = 0; 753 qdflags[unit].kernel_loop = -1; 754 qdflags[unit].user_dma = 0; 755 qdflags[unit].curs_acc = ACC_OFF; 756 qdflags[unit].curs_thr = 128; 757 qdflags[unit].tab_res = 2; /* default tablet resolution factor */ 758 qdflags[unit].duart_imask = 0; /* init shadow variables */ 759 qdflags[unit].adder_ie = 0; 760 761 /* 762 * init structures used in kbd/mouse interrupt service. This code must 763 * come after the "init_shared()" routine has run since that routine 764 * inits the eq_header[unit] structure used here. 765 */ 766 767 /* 768 * init the "latest mouse report" structure 769 */ 770 last_rep[unit].state = 0; 771 last_rep[unit].dx = 0; 772 last_rep[unit].dy = 0; 773 last_rep[unit].bytcnt = 0; 774 775 /* 776 * init the event queue (except mouse position) 777 */ 778 eq_header[unit]->header.events = 779 (struct _vs_event *)((int)eq_header[unit] + sizeof(struct qdinput)); 780 781 eq_header[unit]->header.size = MAXEVENTS; 782 eq_header[unit]->header.head = 0; 783 eq_header[unit]->header.tail = 0; 784 785 /* 786 * open exclusive for graphics device. 787 */ 788 qdopened[unit] = 0; 789 790 } /* qdattach */ 791 792 793 /*ARGSUSED*/ 794 int 795 qdopen(dev_t dev, int flag, int mode, struct proc *p) 796 { 797 volatile struct dga *dga; /* ptr to gate array struct */ 798 struct tty *tp; 799 volatile struct duart *duart; 800 struct uba_softc *sc; 801 int unit; 802 int minor_dev; 803 804 minor_dev = minor(dev); /* get QDSS minor device number */ 805 unit = minor_dev >> 2; 806 807 /* 808 * check for illegal conditions 809 */ 810 sc = device_lookup_private(&qd_cd, unit); 811 if (sc == NULL) 812 return ENXIO; 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 * enable 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] = tty_alloc(); 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_t dev, int flag, int mode, struct proc *p) 881 { 882 struct tty *tp; 883 struct qdmap *qd; 884 volatile int *ptep; 885 volatile struct dga *dga; /* gate array register map pointer */ 886 volatile struct duart *duart; 887 volatile struct adder *adder; 888 int unit; 889 int minor_dev; 890 u_int mapix; 891 int i; /* SIGNED index */ 892 struct uba_softc *uh; 893 894 minor_dev = minor(dev); /* get minor device number */ 895 unit = minor_dev >> 2; /* get QDSS number */ 896 qd = &qdmap[unit]; 897 898 uh = device_private(device_parent(device_lookup(&qd_cd, unit))); 899 900 901 if ((minor_dev & 0x03) == 2) { 902 /* 903 * this is the graphic device... 904 */ 905 if (qdopened[unit] != 1) 906 return(EBUSY); 907 else 908 qdopened[unit] = 0; /* allow it to be re-opened */ 909 /* 910 * re-protect device memory 911 */ 912 if (qdflags[unit].mapped & MAPDEV) { 913 /* 914 * TEMPLATE RAM 915 */ 916 mapix = VTOP((int)qd->template) - VTOP(qvmem[0]); 917 ptep = (int *)(QVmap[0] + mapix); 918 for (i = 0; i < vax_btop(TMPSIZE); i++, ptep++) 919 *ptep = (*ptep & ~PG_PROT) | PG_V | PG_KW; 920 /* 921 * ADDER 922 */ 923 mapix = VTOP((int)qd->adder) - VTOP(qvmem[0]); 924 ptep = (int *)(QVmap[0] + mapix); 925 for (i = 0; i < vax_btop(REGSIZE); i++, ptep++) 926 *ptep = (*ptep & ~PG_PROT) | PG_V | PG_KW; 927 /* 928 * COLOR MAPS 929 */ 930 mapix = VTOP((int)qd->red) - VTOP(qvmem[0]); 931 ptep = (int *)(QVmap[0] + mapix); 932 for (i = 0; i < vax_btop(CLRSIZE); i++, ptep++) 933 *ptep = (*ptep & ~PG_PROT) | PG_V | PG_KW; 934 } 935 936 /* 937 * re-protect DMA buffer and free the map registers 938 */ 939 if (qdflags[unit].mapped & MAPDMA) { 940 panic("Unmapping unmapped buffer"); 941 #ifdef notyet 942 /* 943 * Ragge 990620: 944 * Can't happen because the buffer can't be mapped. 945 */ 946 dga = (struct dga *) qdmap[unit].dga; 947 adder = (struct adder *) qdmap[unit].adder; 948 dga->csr &= ~DMA_IE; 949 dga->csr &= ~0x0600; /* kill DMA */ 950 adder->command = CANCEL; 951 /* 952 * if DMA was running, flush spurious intrpt 953 */ 954 if (dga->bytcnt_lo != 0) { 955 dga->bytcnt_lo = 0; 956 dga->bytcnt_hi = 0; 957 DMA_SETIGNORE(DMAheader[unit]); 958 dga->csr |= DMA_IE; 959 dga->csr &= ~DMA_IE; 960 } 961 ptep = (int *) 962 ((VTOP(DMAheader[unit]*4)) + (mfpr(PR_SBR)|0x80000000)); 963 for (i = 0; i < vax_btop(DMAbuf_size); i++, ptep++) 964 *ptep = (*ptep & ~PG_PROT) | PG_V | PG_KW; 965 ubarelse(uh, &Qbus_unmap[unit]); 966 #endif 967 } 968 969 /* 970 * re-protect 1K (2 pages) event queue 971 */ 972 if (qdflags[unit].mapped & MAPEQ) { 973 ptep = (int *) 974 ((VTOP(eq_header[unit])*4) + (mfpr(PR_SBR)|0x80000000)); 975 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; ptep++; 976 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; 977 } 978 /* 979 * re-protect scroll param area and disable scroll intrpts 980 */ 981 if (qdflags[unit].mapped & MAPSCR) { 982 ptep = (int *) ((VTOP(scroll[unit]) * 4) 983 + (mfpr(PR_SBR) | 0x80000000)); 984 /* 985 * re-protect 512 scroll param area 986 */ 987 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; 988 adder = (struct adder *) qdmap[unit].adder; 989 qdflags[unit].adder_ie &= ~FRAME_SYNC; 990 adder->interrupt_enable = qdflags[unit].adder_ie; 991 } 992 /* 993 * re-protect color map write buffer area and kill intrpts 994 */ 995 if (qdflags[unit].mapped & MAPCOLOR) { 996 ptep = (int *) ((VTOP(color_buf[unit]) * 4) 997 + (mfpr(PR_SBR) | 0x80000000)); 998 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; ptep++; 999 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; 1000 color_buf[unit]->status = 0; 1001 adder = (struct adder *) qdmap[unit].adder; 1002 qdflags[unit].adder_ie &= ~VSYNC; 1003 adder->interrupt_enable = qdflags[unit].adder_ie; 1004 } 1005 mtpr(0, PR_TBIA); 1006 /* flag everything now unmapped */ 1007 qdflags[unit].mapped = 0; 1008 qdflags[unit].inuse &= ~GRAPHIC_DEV; 1009 qdflags[unit].curs_acc = ACC_OFF; 1010 qdflags[unit].curs_thr = 128; 1011 /* 1012 * restore the console 1013 */ 1014 dga = (struct dga *) qdmap[unit].dga; 1015 adder = (struct adder *) qdmap[unit].adder; 1016 dga->csr &= ~DMA_IE; 1017 dga->csr &= ~0x0600; /* halt the DMA! (just in case...) */ 1018 dga->csr |= DMA_ERR; /* clear error condition */ 1019 adder->command = CANCEL; 1020 /* 1021 * if DMA was running, flush spurious intrpt 1022 */ 1023 if (dga->bytcnt_lo != 0) { 1024 dga->bytcnt_lo = 0; 1025 dga->bytcnt_hi = 0; 1026 DMA_SETIGNORE(DMAheader[unit]); 1027 dga->csr |= DMA_IE; 1028 dga->csr &= ~DMA_IE; 1029 } 1030 init_shared(unit); /* init shared memory */ 1031 setup_dragon(unit); /* init ADDER/VIPER */ 1032 ldcursor(unit, cons_cursor); /* load default cursor map */ 1033 setup_input(unit); /* init the DUART */ 1034 ldfont(unit); 1035 cursor[unit].x = 0; 1036 cursor[unit].y = 0; 1037 /* 1038 * shut off the mouse rcv intrpt and turn on kbd intrpts 1039 */ 1040 duart = (struct duart *) qdmap[unit].duart; 1041 qdflags[unit].duart_imask &= ~(0x20); 1042 qdflags[unit].duart_imask |= 0x02; 1043 duart->imask = qdflags[unit].duart_imask; 1044 /* 1045 * shut off interrupts if all is closed 1046 */ 1047 if (!(qdflags[unit].inuse & CONS_DEV)) { 1048 dga = (struct dga *) qdmap[unit].dga; 1049 dga->csr &= ~(GLOBAL_IE | DMA_IE); 1050 } 1051 } else { 1052 /* 1053 * this is the console 1054 */ 1055 tp = qd_tty[minor_dev]; 1056 (*tp->t_linesw->l_close)(tp, flag); 1057 ttyclose(tp); 1058 tp->t_state = 0; 1059 qdflags[unit].inuse &= ~CONS_DEV; 1060 /* 1061 * if graphics device is closed, kill interrupts 1062 */ 1063 if (!(qdflags[unit].inuse & GRAPHIC_DEV)) { 1064 dga = (struct dga *) qdmap[unit].dga; 1065 dga->csr &= ~(GLOBAL_IE | DMA_IE); 1066 } 1067 } 1068 1069 return(0); 1070 1071 } /* qdclose */ 1072 1073 int 1074 qdioctl(dev_t dev, u_long cmd, void *datap, int flags, struct proc *p) 1075 { 1076 volatile int *ptep; /* page table entry pointer */ 1077 int mapix; /* QVmap[] page table index */ 1078 struct _vs_event *event; 1079 struct tty *tp; 1080 int i; 1081 struct qdmap *qd; /* pointer to device map struct */ 1082 volatile struct dga *dga; /* Gate Array reg structure pntr */ 1083 volatile struct duart *duart; /* DUART reg structure pointer */ 1084 volatile struct adder *adder; /* ADDER reg structure pointer */ 1085 struct prgkbd *cmdbuf; 1086 struct prg_cursor *curs; 1087 struct _vs_cursor *pos; 1088 int unit = minor(dev) >> 2; /* number of caller's QDSS */ 1089 u_int minor_dev = minor(dev); 1090 int error; 1091 int s; 1092 short *temp; /* a pointer to template RAM */ 1093 struct uba_softc *uh; 1094 1095 uh = device_private(device_parent(device_lookup(&qd_cd, unit))); 1096 1097 /* 1098 * service graphic device ioctl commands 1099 */ 1100 switch (cmd) { 1101 1102 case QD_GETEVENT: 1103 /* 1104 * extract the oldest event from the event queue 1105 */ 1106 if (ISEMPTY(eq_header[unit])) { 1107 event = (struct _vs_event *) datap; 1108 event->vse_device = VSE_NULL; 1109 break; 1110 } 1111 event = (struct _vs_event *) GETBEGIN(eq_header[unit]); 1112 s = spl5(); 1113 GETEND(eq_header[unit]); 1114 splx(s); 1115 memcpy(datap, (void *)event, sizeof(struct _vs_event)); 1116 break; 1117 1118 case QD_RESET: 1119 /* 1120 * init the dragon stuff, DUART, and driver variables 1121 */ 1122 init_shared(unit); /* init shared memory */ 1123 setup_dragon(unit); /* init the ADDER/VIPER stuff */ 1124 clear_qd_screen(unit); 1125 ldcursor(unit, cons_cursor); /* load default cursor map */ 1126 ldfont(unit); /* load the console font */ 1127 setup_input(unit); /* init the DUART */ 1128 break; 1129 1130 case QD_SET: 1131 /* 1132 * init the DUART and driver variables 1133 */ 1134 init_shared(unit); 1135 setup_input(unit); 1136 break; 1137 1138 case QD_CLRSCRN: 1139 /* 1140 * clear the QDSS screen. (NOTE that this reinits the dragon) 1141 */ 1142 #ifdef notdef /* has caused problems and isn't necessary */ 1143 setup_dragon(unit); 1144 clear_qd_screen(unit); 1145 #endif 1146 break; 1147 1148 case QD_WTCURSOR: 1149 /* 1150 * load a cursor into template RAM 1151 */ 1152 ldcursor(unit, (short *)datap); 1153 break; 1154 1155 case QD_RDCURSOR: 1156 1157 temp = (short *) qdmap[unit].template; 1158 /* 1159 * cursor is 32 WORDS from the end of the 8k WORD... 1160 * ...template space 1161 */ 1162 temp += (8 * 1024) - 32; 1163 for (i = 0; i < 32; ++i, datap += sizeof(short)) 1164 *(short *)datap = *temp++; 1165 break; 1166 1167 case QD_POSCURSOR: 1168 /* 1169 * position the mouse cursor 1170 */ 1171 dga = (struct dga *) qdmap[unit].dga; 1172 pos = (struct _vs_cursor *) datap; 1173 s = spl5(); 1174 dga->x_cursor = TRANX(pos->x); 1175 dga->y_cursor = TRANY(pos->y); 1176 eq_header[unit]->curs_pos.x = pos->x; 1177 eq_header[unit]->curs_pos.y = pos->y; 1178 splx(s); 1179 break; 1180 1181 case QD_PRGCURSOR: 1182 /* 1183 * set the cursor acceleration factor 1184 */ 1185 curs = (struct prg_cursor *) datap; 1186 s = spl5(); 1187 qdflags[unit].curs_acc = curs->acc_factor; 1188 qdflags[unit].curs_thr = curs->threshold; 1189 splx(s); 1190 break; 1191 1192 case QD_MAPDEVICE: 1193 /* 1194 * enable 'user write' to device pages 1195 */ 1196 qdflags[unit].mapped |= MAPDEV; 1197 qd = (struct qdmap *) &qdmap[unit]; 1198 /* 1199 * enable user write to template RAM 1200 */ 1201 mapix = VTOP((int)qd->template) - VTOP(qvmem[0]); 1202 ptep = (int *)(QVmap[0] + mapix); 1203 for (i = 0; i < vax_btop(TMPSIZE); i++, ptep++) 1204 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1205 1206 /* 1207 * enable user write to registers 1208 */ 1209 mapix = VTOP((int)qd->adder) - VTOP(qvmem[0]); 1210 ptep = (int *)(QVmap[0] + mapix); 1211 for (i = 0; i < vax_btop(REGSIZE); i++, ptep++) 1212 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1213 1214 /* 1215 * enable user write to color maps 1216 */ 1217 mapix = VTOP((int)qd->red) - VTOP(qvmem[0]); 1218 ptep = (int *)(QVmap[0] + mapix); 1219 for (i = 0; i < vax_btop(CLRSIZE); i++, ptep++) 1220 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1221 1222 /* 1223 * enable user write to DUART 1224 */ 1225 mapix = VTOP((int)qd->duart) - VTOP(qvmem[0]); 1226 ptep = (int *)(QVmap[0] + mapix); 1227 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; /* duart page */ 1228 1229 mtpr(0, PR_TBIA); /* invalidate translation buffer */ 1230 1231 /* 1232 * stuff qdmap structure in return buffer 1233 */ 1234 memcpy(datap, (void *)qd, sizeof(struct qdmap)); 1235 1236 break; 1237 1238 #ifdef notyet 1239 /* 1240 * Ragge 999620: 1241 * Can't map in the graphic buffer into user space for now. 1242 * The best way to fix this is to convert this driver to wscons. 1243 */ 1244 case QD_MAPIOBUF: 1245 /* 1246 * do setup for DMA by user process 1247 * 1248 * set 'user write enable' bits for DMA buffer 1249 */ 1250 qdflags[unit].mapped |= MAPDMA; 1251 ptep = (int *) ((VTOP(DMAheader[unit]) * 4) 1252 + (mfpr(PR_SBR) | 0x80000000)); 1253 for (i = 0; i < vax_btop(DMAbuf_size); i++, ptep++) 1254 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1255 mtpr(0, PR_TBIA); /* invalidate translation buffer */ 1256 /* 1257 * set up QBUS map registers for DMA 1258 */ 1259 DMAheader[unit]->QBAreg = 1260 uballoc(uh, (void *)DMAheader[unit], DMAbuf_size, 0); 1261 if (DMAheader[unit]->QBAreg == 0) 1262 printf("qd%d: qdioctl: QBA setup error\n", unit); 1263 Qbus_unmap[unit] = DMAheader[unit]->QBAreg; 1264 DMAheader[unit]->QBAreg &= 0x3FFFF; 1265 /* 1266 * return I/O buf adr 1267 */ 1268 *(int *)datap = (int) DMAheader[unit]; 1269 break; 1270 #endif 1271 1272 case QD_MAPSCROLL: 1273 /* 1274 * map the shared scroll param area and enable scroll interpts 1275 */ 1276 qdflags[unit].mapped |= MAPSCR; 1277 ptep = (int *) ((VTOP(scroll[unit]) * 4) 1278 + (mfpr(PR_SBR) | 0x80000000)); 1279 /* 1280 * allow user write to scroll area 1281 */ 1282 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1283 mtpr(0, PR_TBIA); /* invalidate translation buf */ 1284 scroll[unit]->status = 0; 1285 adder = (struct adder *) qdmap[unit].adder; 1286 qdflags[unit].adder_ie |= FRAME_SYNC; 1287 adder->interrupt_enable = qdflags[unit].adder_ie; 1288 *(int *)datap = (int) scroll[unit]; /* return scroll area */ 1289 break; 1290 1291 case QD_UNMAPSCROLL: 1292 /* 1293 * unmap shared scroll param area and disable scroll intrpts 1294 */ 1295 if (qdflags[unit].mapped & MAPSCR) { 1296 qdflags[unit].mapped &= ~MAPSCR; 1297 ptep = (int *) ((VTOP(scroll[unit]) * 4) 1298 + (mfpr(PR_SBR) | 0x80000000)); 1299 /* 1300 * re-protect 512 scroll param area 1301 */ 1302 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; 1303 mtpr(0, PR_TBIA); /* smash CPU's translation buf */ 1304 adder = (struct adder *) qdmap[unit].adder; 1305 qdflags[unit].adder_ie &= ~FRAME_SYNC; 1306 adder->interrupt_enable = qdflags[unit].adder_ie; 1307 } 1308 break; 1309 1310 case QD_MAPCOLOR: 1311 /* 1312 * map shared color map write buf and turn on vsync intrpt 1313 */ 1314 qdflags[unit].mapped |= MAPCOLOR; 1315 ptep = (int *) ((VTOP(color_buf[unit]) * 4) 1316 + (mfpr(PR_SBR) | 0x80000000)); 1317 /* 1318 * allow user write to color map write buffer 1319 */ 1320 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; ptep++; 1321 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1322 mtpr(0, PR_TBIA); /* clr CPU translation buf */ 1323 adder = (struct adder *) qdmap[unit].adder; 1324 qdflags[unit].adder_ie |= VSYNC; 1325 adder->interrupt_enable = qdflags[unit].adder_ie; 1326 /* 1327 * return color area address 1328 */ 1329 *(int *)datap = (int) color_buf[unit]; 1330 break; 1331 1332 case QD_UNMAPCOLOR: 1333 /* 1334 * unmap shared color map write buffer and kill VSYNC intrpts 1335 */ 1336 if (qdflags[unit].mapped & MAPCOLOR) { 1337 qdflags[unit].mapped &= ~MAPCOLOR; 1338 ptep = (int *) ((VTOP(color_buf[unit]) * 4) 1339 + (mfpr(PR_SBR) | 0x80000000)); 1340 /* 1341 * re-protect color map write buffer 1342 */ 1343 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; ptep++; 1344 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; 1345 mtpr(0, PR_TBIA); 1346 adder = (struct adder *) qdmap[unit].adder; 1347 qdflags[unit].adder_ie &= ~VSYNC; 1348 adder->interrupt_enable = qdflags[unit].adder_ie; 1349 } 1350 break; 1351 1352 case QD_MAPEVENT: 1353 /* 1354 * give user write access to the event queue 1355 */ 1356 qdflags[unit].mapped |= MAPEQ; 1357 ptep = (int *) ((VTOP(eq_header[unit]) * 4) 1358 + (mfpr(PR_SBR) | 0x80000000)); 1359 /* 1360 * allow user write to 1K event queue 1361 */ 1362 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; ptep++; 1363 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1364 mtpr(0, PR_TBIA); /* clr CPU translation buf */ 1365 /* 1366 * return event queue address 1367 */ 1368 *(int *)datap = (int)eq_header[unit]; 1369 break; 1370 1371 case QD_PRGKBD: 1372 /* 1373 * pass caller's programming commands to LK201 1374 */ 1375 duart = (struct duart *)qdmap[unit].duart; 1376 cmdbuf = (struct prgkbd *)datap; /* pnt to kbd cmd buf */ 1377 /* 1378 * send command 1379 */ 1380 for (i = 1000; i > 0; --i) { 1381 if (duart->statusA&XMT_RDY) { 1382 duart->dataA = cmdbuf->cmd; 1383 break; 1384 } 1385 } 1386 if (i == 0) { 1387 printf("qd%d: qdioctl: timeout on XMT_RDY [1]\n", unit); 1388 break; 1389 } 1390 /* 1391 * send param1? 1392 */ 1393 if (cmdbuf->cmd & LAST_PARAM) 1394 break; 1395 for (i = 1000; i > 0; --i) { 1396 if (duart->statusA&XMT_RDY) { 1397 duart->dataA = cmdbuf->param1; 1398 break; 1399 } 1400 } 1401 if (i == 0) { 1402 printf("qd%d: qdioctl: timeout on XMT_RDY [2]\n", unit); 1403 break; 1404 } 1405 /* 1406 * send param2? 1407 */ 1408 if (cmdbuf->param1 & LAST_PARAM) 1409 break; 1410 for (i = 1000; i > 0; --i) { 1411 if (duart->statusA&XMT_RDY) { 1412 duart->dataA = cmdbuf->param2; 1413 break; 1414 } 1415 } 1416 if (i == 0) { 1417 printf("qd%d: qdioctl: timeout on XMT_RDY [3]\n", unit); 1418 break; 1419 } 1420 break; 1421 1422 case QD_PRGMOUSE: 1423 /* 1424 * pass caller's programming commands to the mouse 1425 */ 1426 duart = (struct duart *) qdmap[unit].duart; 1427 for (i = 1000; i > 0; --i) { 1428 if (duart->statusB&XMT_RDY) { 1429 duart->dataB = *datap; 1430 break; 1431 } 1432 } 1433 if (i == 0) { 1434 printf("qd%d: qdioctl: timeout on XMT_RDY [4]\n", unit); 1435 } 1436 break; 1437 1438 case QD_RDCONFIG: 1439 /* 1440 * get QDSS configuration word and return it 1441 */ 1442 *(short *)datap = qdflags[unit].config; 1443 break; 1444 1445 case QD_KERN_LOOP: 1446 case QD_KERN_UNLOOP: 1447 /* 1448 * vestige from ultrix. BSD uses TIOCCONS to redirect 1449 * kernel console output. 1450 */ 1451 break; 1452 1453 case QD_PRGTABLET: 1454 /* 1455 * program the tablet 1456 */ 1457 duart = (struct duart *) qdmap[unit].duart; 1458 for (i = 1000; i > 0; --i) { 1459 if (duart->statusB&XMT_RDY) { 1460 duart->dataB = *datap; 1461 break; 1462 } 1463 } 1464 if (i == 0) { 1465 printf("qd%d: qdioctl: timeout on XMT_RDY [5]\n", unit); 1466 } 1467 break; 1468 1469 case QD_PRGTABRES: 1470 /* 1471 * program the tablet report resolution factor 1472 */ 1473 qdflags[unit].tab_res = *(short *)datap; 1474 break; 1475 1476 default: 1477 /* 1478 * service tty ioctl's 1479 */ 1480 if (!(minor_dev & 0x02)) { 1481 tp = qd_tty[minor_dev]; 1482 error = 1483 1484 (*tp->t_linesw->l_ioctl)(tp, cmd, datap, flags, p); 1485 if (error != EPASSTHROUGH) { 1486 return(error); 1487 } 1488 return ttioctl(tp, cmd, datap, flags, p); 1489 } 1490 break; 1491 } 1492 1493 return(0); 1494 1495 } /* qdioctl */ 1496 1497 1498 int 1499 qdpoll(dev_t dev, int events, struct proc *p) 1500 { 1501 int s; 1502 int unit; 1503 struct tty *tp; 1504 u_int minor_dev = minor(dev); 1505 int revents = 0; 1506 1507 s = spl5(); 1508 unit = minor_dev >> 2; 1509 1510 if ((minor_dev & 0x03) == 2) { 1511 /* 1512 * This is a graphics device, so check for events. 1513 */ 1514 1515 if (events & (POLLIN | POLLRDNORM)) 1516 if(!(ISEMPTY(eq_header[unit]))) 1517 revents |= events & (POLLIN | POLLRDNORM); 1518 1519 if (events & (POLLOUT | POLLWRNORM)) 1520 if (DMA_ISEMPTY(DMAheader[unit])) 1521 revents |= events & (POLLOUT | POLLWRNORM); 1522 1523 if (revents == 0) { 1524 if (events & (POLLIN | POLLRDNORM)) 1525 selrecord(p, &qdrsel[unit]); 1526 1527 if (events & (POLLOUT | POLLWRNORM)) 1528 selrecord(p, &qdrsel[unit]); 1529 } 1530 } else { 1531 /* 1532 * this is a tty device 1533 */ 1534 tp = qd_tty[minor_dev]; 1535 revents = (*tp->t_linesw->l_poll)(tp, events, p); 1536 } 1537 1538 splx(s); 1539 return (revents); 1540 } /* qdpoll() */ 1541 1542 static void 1543 filt_qdrdetach(struct knote *kn) 1544 { 1545 dev_t dev = (intptr_t) kn->kn_hook; 1546 u_int minor_dev = minor(dev); 1547 int unit = minor_dev >> 2; 1548 int s; 1549 1550 s = spl5(); 1551 selremove_knote(&qdrsel[unit], kn); 1552 splx(s); 1553 } 1554 1555 static int 1556 filt_qdread(struct knote *kn, long hint) 1557 { 1558 dev_t dev = (intptr_t) kn->kn_hook; 1559 u_int minor_dev = minor(dev); 1560 int unit = minor_dev >> 2; 1561 1562 if (ISEMPTY(eq_header[unit])) 1563 return (0); 1564 1565 kn->kn_data = 0; /* XXXLUKEM (thorpej): what to put here? */ 1566 return (1); 1567 } 1568 1569 static int 1570 filt_qdwrite(struct knote *kn, long hint) 1571 { 1572 dev_t dev = (intptr_t) kn->kn_hook; 1573 u_int minor_dev = minor(dev); 1574 int unit = minor_dev >> 2; 1575 1576 if (! DMA_ISEMPTY(DMAheader[unit])) 1577 return (0); 1578 1579 kn->kn_data = 0; /* XXXLUKEM (thorpej): what to put here? */ 1580 return (1); 1581 } 1582 1583 static const struct filterops qdread_filtops = { 1584 .f_flags = FILTEROP_ISFD, 1585 .f_attach = NULL, 1586 .f_detach = filt_qdrdetach, 1587 .f_event = filt_qdread, 1588 }; 1589 1590 static const struct filterops qdwrite_filtops = { 1591 .f_flags = FILTEROP_ISFD, 1592 .f_attach = NULL, 1593 .f_detach = filt_qdrdetach, 1594 .f_event = filt_qdwrite, 1595 }; 1596 1597 int 1598 qdkqfilter(dev_t dev, struct knote *kn) 1599 { 1600 u_int minor_dev = minor(dev); 1601 int s, unit = minor_dev >> 2; 1602 1603 if ((minor_dev & 0x03) != 2) { 1604 /* TTY device. */ 1605 return (ttykqfilter(dev, kn)); 1606 } 1607 1608 switch (kn->kn_filter) { 1609 case EVFILT_READ: 1610 kn->kn_fop = &qdread_filtops; 1611 break; 1612 1613 case EVFILT_WRITE: 1614 kn->kn_fop = &qdwrite_filtops; 1615 break; 1616 1617 default: 1618 return (EINVAL); 1619 } 1620 1621 kn->kn_hook = (void *)(intptr_t) dev; 1622 1623 s = spl5(); 1624 selrecord_knote(&qdrsel[unit], kn); 1625 splx(s); 1626 1627 return (0); 1628 } 1629 1630 void qd_strategy(struct buf *bp); 1631 1632 /*ARGSUSED*/ 1633 int 1634 qdwrite(dev_t dev, struct uio *uio, int flag) 1635 { 1636 struct tty *tp; 1637 int minor_dev; 1638 int unit; 1639 1640 minor_dev = minor(dev); 1641 unit = (minor_dev >> 2) & 0x07; 1642 1643 if (((minor_dev&0x03) != 0x02) && (qdflags[unit].inuse&CONS_DEV)) { 1644 /* 1645 * this is the console... 1646 */ 1647 tp = qd_tty[minor_dev]; 1648 return ((*tp->t_linesw->l_write)(tp, uio, flag)); 1649 } else if (qdflags[unit].inuse & GRAPHIC_DEV) { 1650 /* 1651 * this is a DMA xfer from user space 1652 */ 1653 return (physio(qd_strategy, NULL, dev, B_WRITE, minphys, uio)); 1654 } 1655 return (ENXIO); 1656 } 1657 1658 /*ARGSUSED*/ 1659 int 1660 qdread(dev_t dev, struct uio *uio, int flag) 1661 { 1662 struct tty *tp; 1663 int minor_dev; 1664 int unit; 1665 1666 minor_dev = minor(dev); 1667 unit = (minor_dev >> 2) & 0x07; 1668 1669 if ((minor_dev & 0x03) != 0x02 && qdflags[unit].inuse & CONS_DEV) { 1670 /* 1671 * this is the console 1672 */ 1673 tp = qd_tty[minor_dev]; 1674 return ((*tp->t_linesw->l_read)(tp, uio, flag)); 1675 } else if (qdflags[unit].inuse & GRAPHIC_DEV) { 1676 /* 1677 * this is a bitmap-to-processor xfer 1678 */ 1679 return (physio(qd_strategy, NULL, dev, B_READ, minphys, uio)); 1680 } 1681 return (ENXIO); 1682 } 1683 1684 /*************************************************************** 1685 * 1686 * qd_strategy()... strategy routine to do DMA 1687 * 1688 ***************************************************************/ 1689 1690 void 1691 qd_strategy(struct buf *bp) 1692 { 1693 volatile struct dga *dga; 1694 volatile struct adder *adder; 1695 int unit; 1696 int QBAreg; 1697 int s; 1698 int cookie; 1699 struct uba_softc *uh; 1700 1701 unit = (minor(bp->b_dev) >> 2) & 0x07; 1702 1703 uh = device_private(device_parent(device_lookup(&qd_cd, unit))); 1704 1705 /* 1706 * init pointers 1707 */ 1708 dga = (struct dga *) qdmap[unit].dga; 1709 panic("qd_strategy"); 1710 #ifdef notyet 1711 if ((QBAreg = ubasetup(uh, bp, 0)) == 0) { 1712 printf("qd%d: qd_strategy: QBA setup error\n", unit); 1713 goto STRAT_ERR; 1714 } 1715 #endif 1716 s = spl5(); 1717 qdflags[unit].user_dma = -1; 1718 dga->csr |= DMA_IE; 1719 cookie = QBAreg & 0x3FFFF; 1720 dga->adrs_lo = (short) cookie; 1721 dga->adrs_hi = (short) (cookie >> 16); 1722 dga->bytcnt_lo = (short) bp->b_bcount; 1723 dga->bytcnt_hi = (short) (bp->b_bcount >> 16); 1724 1725 while (qdflags[unit].user_dma) { 1726 (void) tsleep(&qdflags[unit].user_dma, QSPRIOR, 1727 "qdstrat", 0); 1728 } 1729 splx(s); 1730 #ifdef notyet 1731 ubarelse(uh, &QBAreg); 1732 #endif 1733 if (!(dga->csr & DMA_ERR)) { 1734 biodone(bp); 1735 return; 1736 } 1737 1738 /* STRAT_ERR: */ 1739 adder = (struct adder *) qdmap[unit].adder; 1740 adder->command = CANCEL; /* cancel adder activity */ 1741 dga->csr &= ~DMA_IE; 1742 dga->csr &= ~0x0600; /* halt DMA (reset fifo) */ 1743 dga->csr |= DMA_ERR; /* clear error condition */ 1744 bp->b_error = EIO; /* flag an error to physio() */ 1745 1746 /* 1747 * if DMA was running, flush spurious intrpt 1748 */ 1749 if (dga->bytcnt_lo != 0) { 1750 dga->bytcnt_lo = 0; 1751 dga->bytcnt_hi = 0; 1752 DMA_SETIGNORE(DMAheader[unit]); 1753 dga->csr |= DMA_IE; 1754 } 1755 biodone(bp); 1756 } /* qd_strategy */ 1757 1758 1759 /* 1760 * Start output to the console screen 1761 */ 1762 void qdstart(tp) 1763 struct tty *tp; 1764 { 1765 int which_unit, unit, c; 1766 int s; 1767 1768 unit = minor(tp->t_dev); 1769 which_unit = (unit >> 2) & 0x3; 1770 unit &= 0x03; 1771 1772 s = spl5(); 1773 1774 /* 1775 * If it's currently active, or delaying, no need to do anything. 1776 */ 1777 if (tp->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP)) 1778 goto out; 1779 1780 /* 1781 * Display chars until the queue is empty. 1782 * Drop input from anything but the console 1783 * device on the floor. 1784 * 1785 * XXX - this loop is done at spltty. 1786 * 1787 */ 1788 while (tp->t_outq.c_cc) { 1789 c = getc(&tp->t_outq); 1790 if (unit == 0) 1791 blitc(which_unit, (u_char)c); 1792 } 1793 ttypull(tp); 1794 tp->t_state &= ~TS_BUSY; 1795 1796 out: 1797 splx(s); 1798 1799 } /* qdstart */ 1800 1801 /*ARGSUSED*/ 1802 void 1803 qdstop(struct tty *tp, int flag) 1804 { 1805 int s; 1806 1807 s = spl5(); /* block intrpts during state modification */ 1808 if (tp->t_state & TS_BUSY) { 1809 if ((tp->t_state & TS_TTSTOP) == 0) 1810 tp->t_state |= TS_FLUSH; 1811 else 1812 tp->t_state &= ~TS_BUSY; 1813 } 1814 splx(s); 1815 } 1816 1817 /* 1818 * Output a character to the QDSS screen 1819 */ 1820 void 1821 blitc(int unit, u_char chr) 1822 { 1823 volatile struct adder *adder; 1824 volatile struct dga *dga; 1825 int i; 1826 int nograph = !(qdflags[unit].inuse&GRAPHIC_DEV); 1827 static short inescape[NQD]; 1828 1829 adder = (struct adder *)qdmap[unit].adder; 1830 dga = (struct dga *) qdmap[unit].dga; 1831 /* 1832 * BSD comment: this (&=0177) defeats the extended character 1833 * set code for the glass tty, but if i had the time i would 1834 * spend it ripping out the code completely. This driver 1835 * is too big for its own good. 1836 */ 1837 chr &= 0177; 1838 /* 1839 * Cursor addressing (so vi will work). 1840 * Decode for "\E=%.%." cursor motion description. 1841 * Corresponds to type "qdcons" in /etc/termcap: 1842 * 1843 * qd|qdss|qdcons|qdss glass tty (4.4 BSD):\ 1844 * :am:do=^J:le=^H:bs:cm=\E=%.%.:cl=1^Z:co#128:li#57::nd=^L:up=^K: 1845 * 1846 */ 1847 if (inescape[unit] && nograph) { 1848 switch (inescape[unit]++) { 1849 case 1: 1850 if (chr != '=') { 1851 /* abort escape sequence */ 1852 inescape[unit] = 0; 1853 blitc(unit, chr); 1854 } 1855 return; 1856 case 2: 1857 /* position row */ 1858 cursor[unit].y = CHAR_HEIGHT * chr; 1859 if (cursor[unit].y > 863 - CHAR_HEIGHT) 1860 cursor[unit].y = 863 - CHAR_HEIGHT; 1861 dga->y_cursor = TRANY(cursor[unit].y); 1862 return; 1863 case 3: 1864 /* position column */ 1865 cursor[unit].x = CHAR_WIDTH * chr; 1866 if (cursor[unit].x > 1024 - CHAR_WIDTH) 1867 cursor[unit].x = 1023 - CHAR_WIDTH; 1868 dga->x_cursor = TRANX(cursor[unit].x); 1869 inescape[unit] = 0; 1870 return; 1871 default: 1872 inescape[unit] = 0; 1873 blitc(unit, chr); 1874 } 1875 } 1876 1877 switch (chr) { 1878 case '\r': /* return char */ 1879 cursor[unit].x = 0; 1880 if (nograph) 1881 dga->x_cursor = TRANX(cursor[unit].x); 1882 return; 1883 1884 case '\t': /* tab char */ 1885 for (i = 8 - ((cursor[unit].x >> 3) & 0x07); i > 0; --i) { 1886 blitc(unit, ' '); 1887 } 1888 return; 1889 1890 case '\n': /* line feed char */ 1891 if ((cursor[unit].y += CHAR_HEIGHT) > (863 - CHAR_HEIGHT)) { 1892 if (nograph) { 1893 cursor[unit].y -= CHAR_HEIGHT; 1894 scroll_up(adder); 1895 } else 1896 cursor[unit].y = 0; 1897 } 1898 if (nograph) 1899 dga->y_cursor = TRANY(cursor[unit].y); 1900 return; 1901 1902 case '\b': /* backspace char */ 1903 if (cursor[unit].x > 0) { 1904 cursor[unit].x -= CHAR_WIDTH; 1905 if (nograph) 1906 dga->x_cursor = TRANX(cursor[unit].x); 1907 } 1908 return; 1909 case CTRL('k'): /* cursor up */ 1910 if (nograph && cursor[unit].y > 0) { 1911 cursor[unit].y -= CHAR_HEIGHT; 1912 dga->y_cursor = TRANY(cursor[unit].y); 1913 } 1914 return; 1915 1916 case CTRL('^'): /* home cursor */ 1917 if (nograph) { 1918 cursor[unit].x = 0; 1919 dga->x_cursor = TRANX(cursor[unit].x); 1920 cursor[unit].y = 0; 1921 dga->y_cursor = TRANY(cursor[unit].y); 1922 } 1923 return; 1924 1925 case CTRL('l'): /* cursor right */ 1926 if (nograph && cursor[unit].x < 1023 - CHAR_WIDTH) { 1927 cursor[unit].x += CHAR_WIDTH; 1928 dga->x_cursor = TRANX(cursor[unit].x); 1929 } 1930 return; 1931 1932 case CTRL('z'): /* clear screen */ 1933 if (nograph) { 1934 setup_dragon(unit); 1935 clear_qd_screen(unit); 1936 /* home cursor - termcap seems to assume this */ 1937 cursor[unit].x = 0; 1938 dga->x_cursor = TRANX(cursor[unit].x); 1939 cursor[unit].y = 0; 1940 dga->y_cursor = TRANY(cursor[unit].y); 1941 } 1942 return; 1943 1944 case '\033': /* start escape sequence */ 1945 if (nograph) 1946 inescape[unit] = 1; 1947 return; 1948 1949 default: 1950 if ((chr < ' ') || (chr > '~')) 1951 return; 1952 } 1953 /* 1954 * setup VIPER operand control registers 1955 */ 1956 write_ID(adder, CS_UPDATE_MASK, 0x0001); /* select plane #0 */ 1957 write_ID(adder, SRC1_OCR_B, 1958 EXT_NONE | INT_SOURCE | ID | BAR_SHIFT_DELAY); 1959 write_ID(adder, CS_UPDATE_MASK, 0x00FE); /* select other planes */ 1960 write_ID(adder, SRC1_OCR_B, 1961 EXT_SOURCE | INT_NONE | NO_ID | BAR_SHIFT_DELAY); 1962 write_ID(adder, CS_UPDATE_MASK, 0x00FF); /* select all planes */ 1963 write_ID(adder, DST_OCR_B, 1964 EXT_NONE | INT_NONE | NO_ID | NO_BAR_SHIFT_DELAY); 1965 write_ID(adder, MASK_1, 0xFFFF); 1966 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 1); 1967 write_ID(adder, VIPER_Z_LOAD | BACKGROUND_COLOR_Z, 0); 1968 adder->x_clip_min = 0; 1969 adder->x_clip_max = 1024; 1970 adder->y_clip_min = 0; 1971 adder->y_clip_max = 864; 1972 /* 1973 * load DESTINATION origin and vectors 1974 */ 1975 adder->fast_dest_dy = 0; 1976 adder->slow_dest_dx = 0; 1977 adder->error_1 = 0; 1978 adder->error_2 = 0; 1979 adder->rasterop_mode = DST_WRITE_ENABLE | NORMAL; 1980 (void)wait_status(adder, RASTEROP_COMPLETE); 1981 adder->destination_x = cursor[unit].x; 1982 adder->fast_dest_dx = CHAR_WIDTH; 1983 adder->destination_y = cursor[unit].y; 1984 adder->slow_dest_dy = CHAR_HEIGHT; 1985 /* 1986 * load SOURCE origin and vectors 1987 */ 1988 if ((chr - ' ') > (CHARS - 1)) { 1989 printf("Invalid character (x)%x in blitc\n",chr); 1990 chr = ' '; 1991 } 1992 /* 1993 * X position is modulo the number of characters per line 1994 */ 1995 adder->source_1_x = FONT_X + 1996 (((chr - ' ') % (MAX_SCREEN_X/CHAR_WIDTH)) * CHAR_WIDTH); 1997 /* 1998 * Point to either first or second row 1999 */ 2000 adder->source_1_y = 2048 - 15 * 2001 (((chr - ' ')/(MAX_SCREEN_X/CHAR_WIDTH)) + 1); 2002 adder->source_1_dx = CHAR_WIDTH; 2003 adder->source_1_dy = CHAR_HEIGHT; 2004 write_ID(adder, LU_FUNCTION_R1, FULL_SRC_RESOLUTION | LF_SOURCE); 2005 adder->cmd = RASTEROP | OCRB | 0 | S1E | DTE; 2006 /* 2007 * update console cursor coordinates 2008 */ 2009 cursor[unit].x += CHAR_WIDTH; 2010 if (nograph) 2011 dga->x_cursor = TRANX(cursor[unit].x); 2012 if (cursor[unit].x > (1024 - CHAR_WIDTH)) { 2013 blitc(unit, '\r'); 2014 blitc(unit, '\n'); 2015 } 2016 2017 } /* blitc */ 2018 2019 /* 2020 * INTERRUPT SERVICE ROUTINES 2021 */ 2022 2023 /* 2024 * Service "DMA DONE" interrupt condition 2025 */ 2026 2027 static void 2028 qddint(void *arg) 2029 { 2030 device_t dv = arg; 2031 struct DMAreq_header *header; 2032 struct DMAreq *request; 2033 volatile struct dga *dga; 2034 volatile struct adder *adder; 2035 int cookie; /* DMA adrs for QDSS */ 2036 int unit = device_unit(dv); 2037 2038 (void)spl4(); /* allow interval timer in */ 2039 2040 /* 2041 * init pointers 2042 */ 2043 header = DMAheader[unit]; /* register for optimization */ 2044 dga = (struct dga *) qdmap[unit].dga; 2045 adder = (struct adder *) qdmap[unit].adder; 2046 2047 /* 2048 * if this interrupt flagged as bogus for interrupt flushing purposes.. 2049 */ 2050 if (DMA_ISIGNORE(header)) { 2051 DMA_CLRIGNORE(header); 2052 return; 2053 } 2054 2055 /* 2056 * dump a DMA hardware error message if appropriate 2057 */ 2058 if (dga->csr & DMA_ERR) { 2059 2060 if (dga->csr & PARITY_ERR) 2061 printf("qd%d: qddint: DMA hardware parity fault.\n", unit); 2062 2063 if (dga->csr & BUS_ERR) 2064 printf("qd%d: qddint: DMA hardware bus error.\n", unit); 2065 } 2066 2067 /* 2068 * if this was a DMA from user space... 2069 */ 2070 if (qdflags[unit].user_dma) { 2071 qdflags[unit].user_dma = 0; 2072 wakeup((void *)&qdflags[unit].user_dma); 2073 return; 2074 } 2075 2076 /* 2077 * if we're doing DMA request queue services, field the error condition 2078 */ 2079 if (dga->csr & DMA_ERR) { 2080 2081 dga->csr &= ~0x0600; /* halt DMA (reset fifo) */ 2082 dga->csr |= DMA_ERR; /* clear error condition */ 2083 adder->command = CANCEL; /* cancel adder activity */ 2084 2085 DMA_SETERROR(header); /* flag error in header status word */ 2086 DMA_CLRACTIVE(header); 2087 header->DMAreq[header->oldest].DMAdone |= HARD_ERROR; 2088 header->newest = header->oldest; 2089 header->used = 0; 2090 2091 selnotify(&qdrsel[unit], 0, 0); 2092 2093 if (dga->bytcnt_lo != 0) { 2094 dga->bytcnt_lo = 0; 2095 dga->bytcnt_hi = 0; 2096 DMA_SETIGNORE(header); 2097 } 2098 return; 2099 } 2100 2101 /* 2102 * if the DMA request queue is now becoming non-full, 2103 * wakeup "select" client. 2104 */ 2105 if (DMA_ISFULL(header)) { 2106 selnotify(&qdrsel[unit], 0, 0); 2107 } 2108 2109 header->DMAreq[header->oldest].DMAdone |= REQUEST_DONE; 2110 QDlast_DMAtype = header->DMAreq[header->oldest].DMAtype; 2111 2112 /* check for unexpected interrupt */ 2113 if (DMA_ISEMPTY(header)) 2114 return; 2115 2116 DMA_GETEND(header); /* update request queue indices */ 2117 2118 /* 2119 * if no more DMA pending, wake up "select" client and exit 2120 */ 2121 if (DMA_ISEMPTY(header)) { 2122 selnotify(&qdrsel[unit], 0, 0); 2123 DMA_CLRACTIVE(header); /* flag DMA done */ 2124 return; 2125 } 2126 2127 /* 2128 * initiate next DMA xfer 2129 */ 2130 request = DMA_GETBEGIN(header); 2131 if (request->DMAtype != QDlast_DMAtype) { 2132 dga->csr &= ~0x0600; /* halt DMA (reset fifo) */ 2133 adder->command = CANCEL; /* cancel adder activity */ 2134 } 2135 2136 2137 switch (request->DMAtype) { 2138 2139 case DISPLIST: 2140 if (request->DMAtype != QDlast_DMAtype) { 2141 dga->csr |= DL_ENB; 2142 dga->csr &= ~(BTOP_ENB | BYTE_DMA); 2143 } 2144 break; 2145 2146 case PTOB: 2147 if (request->DMAtype != QDlast_DMAtype) { 2148 if (request->DMAdone & BYTE_PACK) 2149 dga->csr |= (PTOB_ENB | BYTE_DMA); 2150 else { 2151 dga->csr |= PTOB_ENB; 2152 dga->csr &= ~BYTE_DMA; 2153 } 2154 } 2155 break; 2156 2157 case BTOP: 2158 if (request->DMAtype != QDlast_DMAtype) { 2159 if (request->DMAdone & BYTE_PACK) { 2160 dga->csr &= ~DL_ENB; 2161 dga->csr |= (BTOP_ENB | BYTE_DMA); 2162 } 2163 else { 2164 dga->csr |= BTOP_ENB; 2165 dga->csr &= ~(BYTE_DMA | DL_ENB); 2166 } 2167 } 2168 break; 2169 default: 2170 printf("qd%d: qddint: illegal DMAtype parameter.\n", unit); 2171 DMA_CLRACTIVE(header); /* flag DMA done */ 2172 return; 2173 } 2174 2175 if (request->DMAdone & COUNT_ZERO) { 2176 dga->csr &= ~SET_DONE_FIFO; 2177 } 2178 else if (request->DMAdone & FIFO_EMPTY) { 2179 dga->csr |= SET_DONE_FIFO; 2180 } 2181 2182 if (request->DMAdone & WORD_PACK) 2183 dga->csr &= ~BYTE_DMA; 2184 else if (request->DMAdone & BYTE_PACK) 2185 dga->csr |= BYTE_DMA; 2186 2187 dga->csr |= DMA_IE; 2188 QDlast_DMAtype = request->DMAtype; 2189 2190 cookie = ((int)request->bufp - (int)header) + (int)header->QBAreg; 2191 2192 dga->adrs_lo = (short) cookie; 2193 dga->adrs_hi = (short) (cookie >> 16); 2194 2195 dga->bytcnt_lo = (short) request->length; 2196 dga->bytcnt_hi = (short) (request->length >> 16); 2197 2198 return; 2199 } 2200 2201 /* 2202 * ADDER interrupt service routine 2203 */ 2204 static void 2205 qdaint(void *arg) 2206 { 2207 device_t dv = arg; 2208 volatile struct adder *adder; 2209 struct color_buf *cbuf; 2210 int i; 2211 struct rgb *rgbp; 2212 volatile short *red; 2213 volatile short *green; 2214 volatile short *blue; 2215 int unit = device_unit(dv); 2216 2217 (void)spl4(); /* allow interval timer in */ 2218 2219 adder = (struct adder *) qdmap[unit].adder; 2220 2221 /* 2222 * service the vertical blank interrupt (VSYNC bit) by loading 2223 * any pending color map load request 2224 */ 2225 if (adder->status & VSYNC) { 2226 adder->status &= ~VSYNC; /* clear the interrupt */ 2227 cbuf = color_buf[unit]; 2228 if (cbuf->status & LOAD_COLOR_MAP) { 2229 2230 red = (short *) qdmap[unit].red; 2231 green = (short *) qdmap[unit].green; 2232 blue = (short *) qdmap[unit].blue; 2233 2234 for (i = cbuf->count, rgbp = cbuf->rgb; 2235 --i >= 0; rgbp++) { 2236 red[rgbp->offset] = (short) rgbp->red; 2237 green[rgbp->offset] = (short) rgbp->green; 2238 blue[rgbp->offset] = (short) rgbp->blue; 2239 } 2240 2241 cbuf->status &= ~LOAD_COLOR_MAP; 2242 } 2243 } 2244 2245 /* 2246 * service the scroll interrupt (FRAME_SYNC bit) 2247 */ 2248 if (adder->status & FRAME_SYNC) { 2249 adder->status &= ~FRAME_SYNC; /* clear the interrupt */ 2250 2251 if (scroll[unit]->status & LOAD_REGS) { 2252 2253 for (i = 1000, adder->status = 0; i > 0 && 2254 !(adder->status&ID_SCROLL_READY); --i) 2255 ; 2256 2257 if (i == 0) { 2258 printf("qd%d: qdaint: timeout on ID_SCROLL_READY\n", 2259 qd); 2260 return; 2261 } 2262 2263 adder->ID_scroll_data = scroll[unit]->viper_constant; 2264 adder->ID_scroll_command = ID_LOAD | SCROLL_CONSTANT; 2265 2266 adder->y_scroll_constant = 2267 scroll[unit]->y_scroll_constant; 2268 adder->y_offset_pending = scroll[unit]->y_offset; 2269 2270 if (scroll[unit]->status & LOAD_INDEX) { 2271 2272 adder->x_index_pending = 2273 scroll[unit]->x_index_pending; 2274 adder->y_index_pending = 2275 scroll[unit]->y_index_pending; 2276 } 2277 2278 scroll[unit]->status = 0x00; 2279 } 2280 } 2281 } 2282 2283 /* 2284 * DUART input interrupt service routine 2285 * 2286 * XXX - this routine should be broken out - it is essentially 2287 * straight line code. 2288 */ 2289 2290 static void 2291 qdiint(void *arg) 2292 { 2293 device_t dv = arg; 2294 struct _vs_event *event; 2295 struct qdinput *eqh; 2296 volatile struct dga *dga; 2297 volatile struct duart *duart; 2298 struct mouse_report *new_rep; 2299 struct tty *tp; 2300 u_short chr; 2301 u_short status; 2302 u_short data; 2303 u_short key; 2304 char do_wakeup = 0; /* flag to do a select wakeup call */ 2305 char a, b, c; /* mouse button test variables */ 2306 int unit = device_unit(dv); 2307 2308 (void)spl4(); /* allow interval timer in */ 2309 2310 eqh = eq_header[unit]; /* optimized as a register */ 2311 new_rep = ¤t_rep[unit]; 2312 duart = (struct duart *) qdmap[unit].duart; 2313 2314 /* 2315 * if the graphic device is turned on.. 2316 */ 2317 if (qdflags[unit].inuse & GRAPHIC_DEV) { 2318 /* 2319 * empty DUART 2320 */ 2321 while (duart->statusA&RCV_RDY || duart->statusB&RCV_RDY) { 2322 /* 2323 * pick up LK-201 input (if any) 2324 */ 2325 if (duart->statusA&RCV_RDY) { 2326 2327 /* if error condition, then reset it */ 2328 2329 if (duart->statusA&0x70) { 2330 duart->cmdA = 0x40; 2331 continue; 2332 } 2333 2334 /* event queue full now? (overflow condition) */ 2335 2336 if (ISFULL(eqh) == TRUE) { 2337 printf( 2338 "qd%d: qdiint: event queue overflow\n", 2339 qd); 2340 break; 2341 } 2342 2343 /* 2344 * Check for various keyboard errors */ 2345 2346 key = duart->dataA & 0xFF; 2347 2348 if (key==LK_POWER_ERROR || 2349 key==LK_KDOWN_ERROR || 2350 key == LK_INPUT_ERROR || 2351 key == LK_OUTPUT_ERROR) { 2352 printf( 2353 "qd%d: qdiint: keyboard error, code = %x\n", 2354 qd,key); 2355 return; 2356 } 2357 2358 if (key < LK_LOWEST) 2359 return; 2360 2361 ++do_wakeup; /* request a select wakeup call */ 2362 2363 event = PUTBEGIN(eqh); 2364 PUTEND(eqh); 2365 2366 event->vse_key = key; 2367 event->vse_key &= 0x00FF; 2368 event->vse_x = eqh->curs_pos.x; 2369 event->vse_y = eqh->curs_pos.y; 2370 event->vse_time = TOY; 2371 event->vse_type = VSE_BUTTON; 2372 event->vse_direction = VSE_KBTRAW; 2373 event->vse_device = VSE_DKB; 2374 } 2375 2376 /* 2377 * pick up the mouse input (if any) */ 2378 2379 if ((status = duart->statusB) & RCV_RDY && 2380 qdflags[unit].pntr_id == MOUSE_ID) { 2381 2382 if (status & 0x70) { 2383 duart->cmdB = 0x40; 2384 continue; 2385 } 2386 2387 /* event queue full now? (overflow condition) */ 2388 2389 if (ISFULL(eqh) == TRUE) { 2390 printf( 2391 "qd%d: qdiint: event queue overflow\n", 2392 qd); 2393 break; 2394 } 2395 2396 data = duart->dataB; /* get report byte */ 2397 ++new_rep->bytcnt; /* bump report byte count */ 2398 2399 /* 2400 * if 1st byte of report.. */ 2401 2402 if ( data & START_FRAME) { 2403 new_rep->state = data; 2404 if (new_rep->bytcnt > 1) { 2405 /* start of new frame */ 2406 new_rep->bytcnt = 1; 2407 /* ..continue looking */ 2408 continue; 2409 } 2410 } 2411 2412 /* 2413 * if 2nd byte of report.. */ 2414 2415 else if (new_rep->bytcnt == 2) { 2416 new_rep->dx = data & 0x00FF; 2417 } 2418 2419 /* 2420 * if 3rd byte of report, load input event queue */ 2421 2422 else if (new_rep->bytcnt == 3) { 2423 2424 new_rep->dy = data & 0x00FF; 2425 new_rep->bytcnt = 0; 2426 2427 /* 2428 * if mouse position has changed.. */ 2429 2430 if (new_rep->dx != 0 || new_rep->dy != 0) { 2431 2432 /* 2433 * calculate acceleration factor, if needed */ 2434 2435 if (qdflags[unit].curs_acc > ACC_OFF) { 2436 2437 if (qdflags[unit].curs_thr <= new_rep->dx) 2438 new_rep->dx += 2439 (new_rep->dx - qdflags[unit].curs_thr) 2440 * qdflags[unit].curs_acc; 2441 2442 if (qdflags[unit].curs_thr <= new_rep->dy) 2443 new_rep->dy += 2444 (new_rep->dy - qdflags[unit].curs_thr) 2445 * qdflags[unit].curs_acc; 2446 } 2447 2448 /* 2449 * update cursor position coordinates */ 2450 2451 if (new_rep->state & X_SIGN) { 2452 eqh->curs_pos.x += new_rep->dx; 2453 if (eqh->curs_pos.x > 1023) 2454 eqh->curs_pos.x = 1023; 2455 } 2456 else { 2457 eqh->curs_pos.x -= new_rep->dx; 2458 if (eqh->curs_pos.x < -15) 2459 eqh->curs_pos.x = -15; 2460 } 2461 2462 if (new_rep->state & Y_SIGN) { 2463 eqh->curs_pos.y -= new_rep->dy; 2464 if (eqh->curs_pos.y < -15) 2465 eqh->curs_pos.y = -15; 2466 } 2467 else { 2468 eqh->curs_pos.y += new_rep->dy; 2469 if (eqh->curs_pos.y > 863) 2470 eqh->curs_pos.y = 863; 2471 } 2472 2473 /* 2474 * update cursor screen position */ 2475 2476 dga = (struct dga *) qdmap[unit].dga; 2477 dga->x_cursor = TRANX(eqh->curs_pos.x); 2478 dga->y_cursor = TRANY(eqh->curs_pos.y); 2479 2480 /* 2481 * if cursor is in the box, no event report */ 2482 2483 if (eqh->curs_pos.x <= eqh->curs_box.right && 2484 eqh->curs_pos.x >= eqh->curs_box.left && 2485 eqh->curs_pos.y >= eqh->curs_box.top && 2486 eqh->curs_pos.y <= eqh->curs_box.bottom ) { 2487 goto GET_MBUTTON; 2488 } 2489 2490 /* 2491 * report the mouse motion event */ 2492 2493 event = PUTBEGIN(eqh); 2494 PUTEND(eqh); 2495 2496 ++do_wakeup; /* request a select wakeup call */ 2497 2498 event->vse_x = eqh->curs_pos.x; 2499 event->vse_y = eqh->curs_pos.y; 2500 2501 event->vse_device = VSE_MOUSE; /* mouse */ 2502 event->vse_type = VSE_MMOTION; /* pos changed */ 2503 event->vse_key = 0; 2504 event->vse_direction = 0; 2505 event->vse_time = TOY; /* time stamp */ 2506 } 2507 2508 GET_MBUTTON: 2509 /* 2510 * if button state has changed */ 2511 2512 a = new_rep->state & 0x07; /*mask nonbutton bits */ 2513 b = last_rep[unit].state & 0x07; 2514 2515 if (a ^ b) { 2516 2517 for ( c = 1; c < 8; c <<= 1) { 2518 2519 if (!( c & (a ^ b))) /* this button change? */ 2520 continue; 2521 2522 /* event queue full? (overflow condition) */ 2523 2524 if (ISFULL(eqh) == TRUE) { 2525 printf("qd%d: qdiint: event queue overflow\n", qd); 2526 break; 2527 } 2528 2529 event = PUTBEGIN(eqh); /* get new event */ 2530 PUTEND(eqh); 2531 2532 ++do_wakeup; /* request select wakeup */ 2533 2534 event->vse_x = eqh->curs_pos.x; 2535 event->vse_y = eqh->curs_pos.y; 2536 2537 event->vse_device = VSE_MOUSE; /* mouse */ 2538 event->vse_type = VSE_BUTTON; /* new button */ 2539 event->vse_time = TOY; /* time stamp */ 2540 2541 /* flag changed button and if up or down */ 2542 2543 if (c == RIGHT_BUTTON) 2544 event->vse_key = VSE_RIGHT_BUTTON; 2545 else if (c == MIDDLE_BUTTON) 2546 event->vse_key = VSE_MIDDLE_BUTTON; 2547 else if (c == LEFT_BUTTON) 2548 event->vse_key = VSE_LEFT_BUTTON; 2549 2550 /* set bit = button depressed */ 2551 2552 if (c & a) 2553 event->vse_direction = VSE_KBTDOWN; 2554 else 2555 event->vse_direction = VSE_KBTUP; 2556 } 2557 } 2558 2559 /* refresh last report */ 2560 2561 last_rep[unit] = current_rep[unit]; 2562 2563 } /* get last byte of report */ 2564 } else if ((status = duart->statusB)&RCV_RDY && 2565 qdflags[unit].pntr_id == TABLET_ID) { 2566 /* 2567 * pickup tablet input, if any 2568 */ 2569 if (status&0x70) { 2570 duart->cmdB = 0x40; 2571 continue; 2572 } 2573 /* 2574 * event queue full now? (overflow condition) 2575 */ 2576 if (ISFULL(eqh) == TRUE) { 2577 printf("qd%d: qdiint: event queue overflow\n", qd); 2578 break; 2579 } 2580 2581 data = duart->dataB; /* get report byte */ 2582 ++new_rep->bytcnt; /* bump report byte count */ 2583 2584 /* 2585 * if 1st byte of report.. */ 2586 2587 if (data & START_FRAME) { 2588 new_rep->state = data; 2589 if (new_rep->bytcnt > 1) { 2590 new_rep->bytcnt = 1; /* start of new frame */ 2591 continue; /* ..continue looking */ 2592 } 2593 } 2594 2595 /* 2596 * if 2nd byte of report.. */ 2597 2598 else if (new_rep->bytcnt == 2) { 2599 new_rep->dx = data & 0x3F; 2600 } 2601 2602 /* 2603 * if 3rd byte of report.. */ 2604 2605 else if (new_rep->bytcnt == 3) { 2606 new_rep->dx |= (data & 0x3F) << 6; 2607 } 2608 2609 /* 2610 * if 4th byte of report.. */ 2611 2612 else if (new_rep->bytcnt == 4) { 2613 new_rep->dy = data & 0x3F; 2614 } 2615 2616 /* 2617 * if 5th byte of report, load input event queue */ 2618 2619 else if (new_rep->bytcnt == 5) { 2620 2621 new_rep->dy |= (data & 0x3F) << 6; 2622 new_rep->bytcnt = 0; 2623 2624 /* 2625 * update cursor position coordinates */ 2626 2627 new_rep->dx /= qdflags[unit].tab_res; 2628 new_rep->dy = (2200 - new_rep->dy) 2629 / qdflags[unit].tab_res; 2630 2631 if (new_rep->dx > 1023) { 2632 new_rep->dx = 1023; 2633 } 2634 if (new_rep->dy > 863) { 2635 new_rep->dy = 863; 2636 } 2637 2638 /* 2639 * report an event if the puck/stylus has moved 2640 */ 2641 2642 if (eqh->curs_pos.x != new_rep->dx || 2643 eqh->curs_pos.y != new_rep->dy) { 2644 2645 eqh->curs_pos.x = new_rep->dx; 2646 eqh->curs_pos.y = new_rep->dy; 2647 2648 /* 2649 * update cursor screen position */ 2650 2651 dga = (struct dga *) qdmap[unit].dga; 2652 dga->x_cursor = TRANX(eqh->curs_pos.x); 2653 dga->y_cursor = TRANY(eqh->curs_pos.y); 2654 2655 /* 2656 * if cursor is in the box, no event report 2657 */ 2658 2659 if (eqh->curs_pos.x <= eqh->curs_box.right && 2660 eqh->curs_pos.x >= eqh->curs_box.left && 2661 eqh->curs_pos.y >= eqh->curs_box.top && 2662 eqh->curs_pos.y <= eqh->curs_box.bottom ) { 2663 goto GET_TBUTTON; 2664 } 2665 2666 /* 2667 * report the tablet motion event */ 2668 2669 event = PUTBEGIN(eqh); 2670 PUTEND(eqh); 2671 2672 ++do_wakeup; /* request a select wakeup call */ 2673 2674 event->vse_x = eqh->curs_pos.x; 2675 event->vse_y = eqh->curs_pos.y; 2676 2677 event->vse_device = VSE_TABLET; /* tablet */ 2678 /* 2679 * right now, X handles tablet motion the same 2680 * as mouse motion 2681 */ 2682 event->vse_type = VSE_MMOTION; /* pos changed */ 2683 event->vse_key = 0; 2684 event->vse_direction = 0; 2685 event->vse_time = TOY; /* time stamp */ 2686 } 2687 GET_TBUTTON: 2688 /* 2689 * if button state has changed */ 2690 2691 a = new_rep->state & 0x1E; /* mask nonbutton bits */ 2692 b = last_rep[unit].state & 0x1E; 2693 2694 if (a ^ b) { 2695 2696 /* event queue full now? (overflow condition) */ 2697 2698 if (ISFULL(eqh) == TRUE) { 2699 printf("qd%d: qdiint: event queue overflow\n",qd); 2700 break; 2701 } 2702 2703 event = PUTBEGIN(eqh); /* get new event */ 2704 PUTEND(eqh); 2705 2706 ++do_wakeup; /* request a select wakeup call */ 2707 2708 event->vse_x = eqh->curs_pos.x; 2709 event->vse_y = eqh->curs_pos.y; 2710 2711 event->vse_device = VSE_TABLET; /* tablet */ 2712 event->vse_type = VSE_BUTTON; /* button changed */ 2713 event->vse_time = TOY; /* time stamp */ 2714 2715 /* define the changed button and if up or down */ 2716 2717 for ( c = 1; c <= 0x10; c <<= 1) { 2718 if (c & (a ^ b)) { 2719 if (c == T_LEFT_BUTTON) 2720 event->vse_key = VSE_T_LEFT_BUTTON; 2721 else if (c == T_FRONT_BUTTON) 2722 event->vse_key = VSE_T_FRONT_BUTTON; 2723 else if (c == T_RIGHT_BUTTON) 2724 event->vse_key = VSE_T_RIGHT_BUTTON; 2725 else if (c == T_BACK_BUTTON) 2726 event->vse_key = VSE_T_BACK_BUTTON; 2727 break; 2728 } 2729 } 2730 2731 /* set bit = button depressed */ 2732 2733 if (c & a) 2734 event->vse_direction = VSE_KBTDOWN; 2735 else 2736 event->vse_direction = VSE_KBTUP; 2737 } 2738 2739 /* refresh last report */ 2740 2741 last_rep[unit] = current_rep[unit]; 2742 2743 } /* get last byte of report */ 2744 } /* pick up tablet input */ 2745 2746 } /* while input available.. */ 2747 2748 /* 2749 * do select wakeup 2750 */ 2751 if (do_wakeup) { 2752 selnotify(&qdrsel[unit], 0, 0); 2753 do_wakeup = 0; 2754 } 2755 } else { 2756 /* 2757 * if the graphic device is not turned on, this is console input 2758 */ 2759 if (qdpolling) 2760 return; 2761 2762 if (unit >= qd_cd.cd_ndevs || device_lookup(&qd_cd, unit) == NULL) 2763 return; /* no such device or address */ 2764 2765 tp = qd_tty[unit << 2]; 2766 2767 /* 2768 * Get a character from the keyboard. 2769 */ 2770 while (duart->statusA&RCV_RDY) { 2771 key = duart->dataA; 2772 key &= 0xFF; 2773 /* 2774 * Check for various keyboard errors 2775 */ 2776 if (key == LK_POWER_ERROR || key == LK_KDOWN_ERROR || 2777 key == LK_INPUT_ERROR || key == LK_OUTPUT_ERROR) { 2778 printf("qd%d: qdiint: Keyboard error, code = %x\n",qd,key); 2779 return; 2780 } 2781 2782 if (key < LK_LOWEST) 2783 return; 2784 2785 /* 2786 * See if its a state change key */ 2787 2788 switch (key) { 2789 2790 case LOCK: 2791 q_keyboard.lock ^= 0xffff; /* toggle */ 2792 if (q_keyboard.lock) 2793 led_control(qd, LK_LED_ENABLE, 2794 LK_LED_LOCK); 2795 else 2796 led_control(qd, LK_LED_DISABLE, 2797 LK_LED_LOCK); 2798 return; 2799 2800 case SHIFT: 2801 q_keyboard.shift ^= 0xFFFF; 2802 return; 2803 2804 case CNTRL: 2805 q_keyboard.cntrl ^= 0xFFFF; 2806 return; 2807 2808 case ALLUP: 2809 q_keyboard.cntrl = 0; 2810 q_keyboard.shift = 0; 2811 return; 2812 2813 case REPEAT: 2814 chr = q_keyboard.last; 2815 break; 2816 2817 /* 2818 * Test for cntrl characters. If set, see if the character 2819 * is eligible to become a control character. */ 2820 2821 default: 2822 2823 if (q_keyboard.cntrl) { 2824 chr = q_key[key]; 2825 if (chr >= ' ' && chr <= '~') 2826 chr &= 0x1F; 2827 else if (chr >= 0xA1 && chr <= 0xFE) 2828 chr &= 0x9F; 2829 } 2830 else if( q_keyboard.lock || q_keyboard.shift ) 2831 chr = q_shift_key[key]; 2832 else 2833 chr = q_key[key]; 2834 break; 2835 } 2836 2837 q_keyboard.last = chr; 2838 2839 /* 2840 * Check for special function keys */ 2841 2842 if (chr & 0x100) { 2843 char *string; 2844 string = q_special[chr & 0x7F]; 2845 while(*string) 2846 (*tp->t_linesw->l_rint)(*string++, tp); 2847 } 2848 else { 2849 #ifdef DDB 2850 /* Check for kernel debugger escape here */ 2851 int j; 2852 2853 j = kdbrint(chr&0177); 2854 2855 if (j == 1) /* Escape received, just return */ 2856 return; 2857 2858 if (j == 2) /* Second char wasn't 'D' */ 2859 (*tp->t_linesw->l_rint)(27, tp); 2860 #endif 2861 (*tp->t_linesw->l_rint)(chr&0177, tp); 2862 } 2863 } 2864 } 2865 } /* qdiint */ 2866 2867 /* 2868 * 2869 * Clear the QDSS screen 2870 * 2871 * >>> NOTE <<< 2872 * 2873 * This code requires that certain adder initialization be valid. To 2874 * assure that this requirement is satisfied, this routine should be 2875 * called only after calling the "setup_dragon()" function. 2876 * 2877 * Clear the bitmap a piece at a time. Since the fast scroll clear 2878 * only clears the current displayed portion of the bitmap put a 2879 * temporary value in the y limit register so we can access whole 2880 * bitmap 2881 * 2882 */ 2883 void 2884 clear_qd_screen(int unit) 2885 { 2886 volatile struct adder *adder; 2887 adder = (struct adder *) qdmap[unit].adder; 2888 2889 adder->x_limit = 1024; 2890 adder->y_limit = 2048 - CHAR_HEIGHT; 2891 adder->y_offset_pending = 0; 2892 #define WSV (void)wait_status(adder, VSYNC); (void)wait_status(adder, VSYNC) 2893 WSV; 2894 adder->y_scroll_constant = SCROLL_ERASE; 2895 WSV; 2896 adder->y_offset_pending = 864; 2897 WSV; 2898 adder->y_scroll_constant = SCROLL_ERASE; 2899 WSV; 2900 adder->y_offset_pending = 1728; 2901 WSV; 2902 adder->y_scroll_constant = SCROLL_ERASE; 2903 WSV; 2904 adder->y_offset_pending = 0; /* back to normal */ 2905 WSV; 2906 adder->x_limit = MAX_SCREEN_X; 2907 adder->y_limit = MAX_SCREEN_Y + FONT_HEIGHT; 2908 #undef WSV 2909 2910 } /* clear_qd_screen */ 2911 2912 /* 2913 * kernel console output to the glass tty 2914 */ 2915 void 2916 qdcnputc(dev_t dev, int chr) 2917 { 2918 2919 /* 2920 * if system is now physical, forget it (ie: crash DUMP) 2921 */ 2922 if ((mfpr(PR_MAPEN) & 1) == 0) 2923 return; 2924 2925 blitc(0, (u_char)(chr & 0xff)); 2926 if ((chr & 0177) == '\n') 2927 blitc(0, '\r'); 2928 2929 } /* qdputc */ 2930 2931 /* 2932 * load the mouse cursor's template RAM bitmap 2933 */ 2934 void 2935 ldcursor(int unit, short *bitmap) 2936 { 2937 volatile struct dga *dga; 2938 volatile short *temp; 2939 int i; 2940 int curs; 2941 2942 dga = (struct dga *) qdmap[unit].dga; 2943 temp = (short *) qdmap[unit].template; 2944 2945 if (dga->csr & CURS_ENB) { /* if the cursor is enabled.. */ 2946 curs = -1; /* ..note that.. */ 2947 dga->csr &= ~CURS_ENB; /* ..and shut it off */ 2948 } else 2949 curs = 0; 2950 2951 dga->csr &= ~CURS_ENB; /* shut off the cursor */ 2952 2953 temp += (8 * 1024) - 32; /* cursor is 32 WORDS from the end */ 2954 /* ..of the 8k WORD template space */ 2955 for (i = 0; i < 32; ++i) 2956 *temp++ = *bitmap++; 2957 2958 if (curs) { /* if cursor was enabled.. */ 2959 dga->csr |= CURS_ENB; /* ..turn it back on */ 2960 } 2961 2962 } /* ldcursor */ 2963 2964 /* 2965 * Put the console font in the QDSS off-screen memory 2966 */ 2967 void 2968 ldfont(int unit) 2969 { 2970 volatile struct adder *adder; 2971 2972 int i, j, k, max_chars_line; 2973 short packed; 2974 2975 adder = (struct adder *) qdmap[unit].adder; 2976 2977 /* 2978 * setup VIPER operand control registers 2979 */ 2980 write_ID(adder, MASK_1, 0xFFFF); 2981 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 255); 2982 write_ID(adder, VIPER_Z_LOAD | BACKGROUND_COLOR_Z, 0); 2983 2984 write_ID(adder, SRC1_OCR_B, 2985 EXT_NONE | INT_NONE | ID | BAR_SHIFT_DELAY); 2986 write_ID(adder, SRC2_OCR_B, 2987 EXT_NONE | INT_NONE | ID | BAR_SHIFT_DELAY); 2988 write_ID(adder, DST_OCR_B, 2989 EXT_SOURCE | INT_NONE | NO_ID | NO_BAR_SHIFT_DELAY); 2990 2991 adder->rasterop_mode = DST_WRITE_ENABLE | DST_INDEX_ENABLE | NORMAL; 2992 2993 /* 2994 * load destination data 2995 */ 2996 (void)wait_status(adder, RASTEROP_COMPLETE); 2997 2998 adder->destination_x = FONT_X; 2999 adder->destination_y = FONT_Y; 3000 #if FONT_WIDTH > MAX_SCREEN_X 3001 adder->fast_dest_dx = MAX_SCREEN_X; 3002 #else 3003 adder->fast_dest_dx = FONT_WIDTH; 3004 #endif 3005 adder->slow_dest_dy = CHAR_HEIGHT; 3006 3007 /* 3008 * setup for processor to bitmap xfer */ 3009 3010 write_ID(adder, CS_UPDATE_MASK, 0x0001); 3011 adder->cmd = PBT | OCRB | 2 | DTE | 2; 3012 3013 /* 3014 * Figure out how many characters can be stored on one "line" of 3015 * offscreen memory. 3016 */ 3017 max_chars_line = MAX_SCREEN_X/(CHAR_WIDTH*2); 3018 if ((CHARS/2 + CHARS%2) < max_chars_line) 3019 max_chars_line = CHARS/2 + CHARS%2; 3020 3021 /* 3022 * iteratively do the processor to bitmap xfer */ 3023 3024 for (i = 0; i < ROWS; ++i) { 3025 3026 /* PTOB a scan line */ 3027 3028 for (j = 0, k = i; j < max_chars_line; ++j) { 3029 /* PTOB one scan of a char cell */ 3030 3031 packed = q_font[k]; 3032 k += ROWS; 3033 packed |= ((short)q_font[k] << 8); 3034 k += ROWS; 3035 3036 (void)wait_status(adder, TX_READY); 3037 adder->id_data = packed; 3038 } 3039 } 3040 3041 /* 3042 * (XXX XXX XXX - should remove) 3043 * 3044 * Copy the second row of characters. Subtract the first 3045 * row from the total number. Divide this quantity by 2 3046 * because 2 chars are stored in a short in the PTOB loop 3047 * below. Figure out how many characters can be stored on 3048 * one "line" of offscreen memory 3049 */ 3050 3051 max_chars_line = MAX_SCREEN_X/(CHAR_WIDTH*2); 3052 if ((CHARS/2 + CHARS%2) < max_chars_line) 3053 return; 3054 max_chars_line = (CHARS/2 + CHARS%2) - max_chars_line; /* 95 - 64 */ 3055 /* Paranoia check to see if 3rd row may be needed */ 3056 if (max_chars_line > (MAX_SCREEN_X/(CHAR_WIDTH*2))) 3057 max_chars_line = MAX_SCREEN_X/(CHAR_WIDTH*2); 3058 3059 adder->destination_x = FONT_X; 3060 adder->destination_y = FONT_Y - CHAR_HEIGHT; 3061 adder->fast_dest_dx = max_chars_line * CHAR_WIDTH * 2; 3062 adder->slow_dest_dy = CHAR_HEIGHT; 3063 3064 /* 3065 * setup for processor to bitmap xfer 3066 */ 3067 write_ID(adder, CS_UPDATE_MASK, 0x0001); 3068 adder->cmd = PBT | OCRB | 2 | DTE | 2; 3069 3070 /* 3071 * iteratively do the processor to bitmap xfer 3072 */ 3073 for (i = 0; i < ROWS; ++i) { 3074 /* 3075 * PTOB a scan line 3076 */ 3077 for (j = 0, k = i; j < max_chars_line; ++j) { 3078 /* 3079 * PTOB one scan of a char cell 3080 */ 3081 packed = q_font[k + FONT_OFFSET]; 3082 k += ROWS; 3083 packed |= ((short)q_font[k + FONT_OFFSET] << 8); 3084 k += ROWS; 3085 (void)wait_status(adder, TX_READY); 3086 adder->id_data = packed; 3087 } 3088 } 3089 3090 } /* ldfont */ 3091 3092 3093 /* 3094 * Disable or enable polling. This is used when entering or leaving the 3095 * kernel debugger. 3096 */ 3097 void 3098 qdcnpollc(dev_t dev, int onoff) 3099 { 3100 qdpolling = onoff; 3101 } 3102 3103 3104 /* 3105 * Get a character from the LK201 (polled) 3106 */ 3107 int 3108 qdcngetc(dev_t dev) 3109 { 3110 short key; 3111 char chr; 3112 volatile struct duart *duart; 3113 3114 duart = (struct duart *) qdmap[0].duart; 3115 3116 /* 3117 * Get a character from the keyboard. 3118 */ 3119 LOOP: 3120 while (!(duart->statusA&RCV_RDY)) 3121 ; 3122 3123 key = duart->dataA; 3124 key &= 0xFF; 3125 3126 /* 3127 * Check for various keyboard errors */ 3128 3129 if (key == LK_POWER_ERROR || key == LK_KDOWN_ERROR || 3130 key == LK_INPUT_ERROR || key == LK_OUTPUT_ERROR) { 3131 printf("Keyboard error, code = %x\n", key); 3132 return(0); 3133 } 3134 3135 if (key < LK_LOWEST) 3136 return(0); 3137 3138 /* 3139 * See if its a state change key 3140 */ 3141 switch (key) { 3142 3143 case LOCK: 3144 q_keyboard.lock ^= 0xffff; /* toggle */ 3145 if (q_keyboard.lock) 3146 led_control(0, LK_LED_ENABLE, LK_LED_LOCK); 3147 else 3148 led_control(0, LK_LED_DISABLE, LK_LED_LOCK); 3149 goto LOOP; 3150 3151 case SHIFT: 3152 q_keyboard.shift ^= 0xFFFF; 3153 goto LOOP; 3154 3155 case CNTRL: 3156 q_keyboard.cntrl ^= 0xFFFF; 3157 goto LOOP; 3158 3159 case ALLUP: 3160 q_keyboard.cntrl = 0; 3161 q_keyboard.shift = 0; 3162 goto LOOP; 3163 3164 case REPEAT: 3165 chr = q_keyboard.last; 3166 break; 3167 3168 /* 3169 * Test for cntrl characters. If set, see if the character 3170 * is eligible to become a control character. 3171 */ 3172 default: 3173 3174 if (q_keyboard.cntrl) { 3175 chr = q_key[key]; 3176 if (chr >= ' ' && chr <= '~') 3177 chr &= 0x1F; 3178 } 3179 else if ( q_keyboard.lock || q_keyboard.shift ) 3180 chr = q_shift_key[key]; 3181 else 3182 chr = q_key[key]; 3183 break; 3184 } 3185 3186 if (chr < ' ' && chr > '~') /* if input is non-displayable */ 3187 return(0); /* ..then pitch it! */ 3188 3189 q_keyboard.last = chr; 3190 3191 /* 3192 * Check for special function keys */ 3193 3194 if (chr & 0x80) /* pitch the function keys */ 3195 return(0); 3196 else 3197 return(chr); 3198 3199 } /* qdgetc */ 3200 3201 /* 3202 * led_control()... twiddle LK-201 LED's 3203 */ 3204 void 3205 led_control(int unit, int cmd, int led_mask) 3206 { 3207 int i; 3208 volatile struct duart *duart; 3209 3210 duart = (struct duart *)qdmap[unit].duart; 3211 3212 for (i = 1000; i > 0; --i) { 3213 if (duart->statusA&XMT_RDY) { 3214 duart->dataA = cmd; 3215 break; 3216 } 3217 } 3218 for (i = 1000; i > 0; --i) { 3219 if (duart->statusA&XMT_RDY) { 3220 duart->dataA = led_mask; 3221 break; 3222 } 3223 } 3224 return; 3225 3226 } /* led_control */ 3227 3228 /* 3229 * scroll_up()... move the screen up one character height 3230 */ 3231 void 3232 scroll_up(volatile struct adder *adder) 3233 { 3234 /* 3235 * setup VIPER operand control registers 3236 */ 3237 (void)wait_status(adder, ADDRESS_COMPLETE); 3238 write_ID(adder, CS_UPDATE_MASK, 0x00FF); /* select all planes */ 3239 write_ID(adder, MASK_1, 0xFFFF); 3240 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 255); 3241 write_ID(adder, VIPER_Z_LOAD | BACKGROUND_COLOR_Z, 0); 3242 write_ID(adder, SRC1_OCR_B, 3243 EXT_NONE | INT_SOURCE | ID | BAR_SHIFT_DELAY); 3244 write_ID(adder, DST_OCR_B, 3245 EXT_NONE | INT_NONE | NO_ID | NO_BAR_SHIFT_DELAY); 3246 /* 3247 * load DESTINATION origin and vectors 3248 */ 3249 adder->fast_dest_dy = 0; 3250 adder->slow_dest_dx = 0; 3251 adder->error_1 = 0; 3252 adder->error_2 = 0; 3253 adder->rasterop_mode = DST_WRITE_ENABLE | NORMAL; 3254 adder->destination_x = 0; 3255 adder->fast_dest_dx = 1024; 3256 adder->destination_y = 0; 3257 adder->slow_dest_dy = 864 - CHAR_HEIGHT; 3258 /* 3259 * load SOURCE origin and vectors 3260 */ 3261 adder->source_1_x = 0; 3262 adder->source_1_dx = 1024; 3263 adder->source_1_y = 0 + CHAR_HEIGHT; 3264 adder->source_1_dy = 864 - CHAR_HEIGHT; 3265 write_ID(adder, LU_FUNCTION_R1, FULL_SRC_RESOLUTION | LF_SOURCE); 3266 adder->cmd = RASTEROP | OCRB | 0 | S1E | DTE; 3267 /* 3268 * do a rectangle clear of last screen line 3269 */ 3270 write_ID(adder, MASK_1, 0xffff); 3271 write_ID(adder, SOURCE, 0xffff); 3272 write_ID(adder,DST_OCR_B, 3273 (EXT_NONE | INT_NONE | NO_ID | NO_BAR_SHIFT_DELAY)); 3274 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 0); 3275 adder->error_1 = 0; 3276 adder->error_2 = 0; 3277 adder->slow_dest_dx = 0; /* set up the width of */ 3278 adder->slow_dest_dy = CHAR_HEIGHT; /* rectangle */ 3279 adder->rasterop_mode = (NORMAL | DST_WRITE_ENABLE) ; 3280 (void)wait_status(adder, RASTEROP_COMPLETE); 3281 adder->destination_x = 0; 3282 adder->destination_y = 864 - CHAR_HEIGHT; 3283 adder->fast_dest_dx = 1024; /* set up the height */ 3284 adder->fast_dest_dy = 0; /* of rectangle */ 3285 write_ID(adder, LU_FUNCTION_R2, (FULL_SRC_RESOLUTION | LF_SOURCE)); 3286 adder->cmd = (RASTEROP | OCRB | LF_R2 | DTE ) ; 3287 3288 } /* scroll_up */ 3289 3290 /* 3291 * init shared memory pointers and structures 3292 */ 3293 void 3294 init_shared(int unit) 3295 { 3296 volatile struct dga *dga; 3297 3298 dga = (struct dga *) qdmap[unit].dga; 3299 3300 /* 3301 * initialize the event queue pointers and header */ 3302 3303 eq_header[unit] = (struct qdinput *) 3304 ((((int)event_shared & ~(0x01FF)) + 512) 3305 + (EVENT_BUFSIZE * unit)); 3306 eq_header[unit]->curs_pos.x = 0; 3307 eq_header[unit]->curs_pos.y = 0; 3308 dga->x_cursor = TRANX(eq_header[unit]->curs_pos.x); 3309 dga->y_cursor = TRANY(eq_header[unit]->curs_pos.y); 3310 eq_header[unit]->curs_box.left = 0; 3311 eq_header[unit]->curs_box.right = 0; 3312 eq_header[unit]->curs_box.top = 0; 3313 eq_header[unit]->curs_box.bottom = 0; 3314 /* 3315 * assign a pointer to the DMA I/O buffer for this QDSS. 3316 */ 3317 DMAheader[unit] = (struct DMAreq_header *) 3318 (((int)(&DMA_shared[0] + 512) & ~0x1FF) 3319 + (DMAbuf_size * unit)); 3320 DMAheader[unit]->DMAreq = (struct DMAreq *) ((int)DMAheader[unit] 3321 + sizeof(struct DMAreq_header)); 3322 DMAheader[unit]->QBAreg = 0; 3323 DMAheader[unit]->status = 0; 3324 DMAheader[unit]->shared_size = DMAbuf_size; 3325 DMAheader[unit]->used = 0; 3326 DMAheader[unit]->size = 10; /* default = 10 requests */ 3327 DMAheader[unit]->oldest = 0; 3328 DMAheader[unit]->newest = 0; 3329 /* 3330 * assign a pointer to the scroll structure for this QDSS. 3331 */ 3332 scroll[unit] = (struct scroll *) 3333 (((int)(&scroll_shared[0] + 512) & ~0x1FF) 3334 + (sizeof(struct scroll) * unit)); 3335 scroll[unit]->status = 0; 3336 scroll[unit]->viper_constant = 0; 3337 scroll[unit]->y_scroll_constant = 0; 3338 scroll[unit]->y_offset = 0; 3339 scroll[unit]->x_index_pending = 0; 3340 scroll[unit]->y_index_pending = 0; 3341 /* 3342 * assign a pointer to the color map write buffer for this QDSS 3343 */ 3344 color_buf[unit] = (struct color_buf *) 3345 (((int)(&color_shared[0] + 512) & ~0x1FF) 3346 + (COLOR_BUFSIZ * unit)); 3347 color_buf[unit]->status = 0; 3348 color_buf[unit]->count = 0; 3349 3350 } /* init_shared */ 3351 3352 /* 3353 * init the ADDER, VIPER, bitmaps, & color map 3354 */ 3355 void 3356 setup_dragon(int unit) 3357 { 3358 3359 volatile struct adder *adder; 3360 volatile struct dga *dga; 3361 volatile short *memcsr; 3362 int i; 3363 short top; /* clipping/scrolling boundaries */ 3364 short bottom; 3365 short right; 3366 short left; 3367 volatile short *red; /* color map pointers */ 3368 volatile short *green; 3369 volatile short *blue; 3370 3371 /* 3372 * init for setup 3373 */ 3374 adder = (struct adder *) qdmap[unit].adder; 3375 dga = (struct dga *) qdmap[unit].dga; 3376 memcsr = (short *) qdmap[unit].memcsr; 3377 dga->csr &= ~(DMA_IE | 0x700); /* halt DMA and kill the intrpts */ 3378 *memcsr = SYNC_ON; /* blank screen and turn off LED's */ 3379 adder->command = CANCEL; 3380 /* 3381 * set monitor timing 3382 */ 3383 adder->x_scan_count_0 = 0x2800; 3384 adder->x_scan_count_1 = 0x1020; 3385 adder->x_scan_count_2 = 0x003A; 3386 adder->x_scan_count_3 = 0x38F0; 3387 adder->x_scan_count_4 = 0x6128; 3388 adder->x_scan_count_5 = 0x093A; 3389 adder->x_scan_count_6 = 0x313C; 3390 adder->sync_phase_adj = 0x0100; 3391 adder->x_scan_conf = 0x00C8; 3392 /* 3393 * got a bug in second pass ADDER! lets take care of it 3394 * 3395 * normally, just use the code in the following bug fix code, but to 3396 * make repeated demos look pretty, load the registers as if there was 3397 * no bug and then test to see if we are getting sync 3398 */ 3399 adder->y_scan_count_0 = 0x135F; 3400 adder->y_scan_count_1 = 0x3363; 3401 adder->y_scan_count_2 = 0x2366; 3402 adder->y_scan_count_3 = 0x0388; 3403 /* 3404 * if no sync, do the bug fix code 3405 */ 3406 if (wait_status(adder, VSYNC) == BAD) { 3407 /* first load all Y scan registers with very short frame and 3408 * wait for scroll service. This guarantees at least one SYNC 3409 * to fix the pass 2 Adder initialization bug (synchronizes 3410 * XCINCH with DMSEEDH) 3411 */ 3412 adder->y_scan_count_0 = 0x01; 3413 adder->y_scan_count_1 = 0x01; 3414 adder->y_scan_count_2 = 0x01; 3415 adder->y_scan_count_3 = 0x01; 3416 /* 3417 * delay at least 1 full frame time 3418 */ 3419 (void)wait_status(adder, VSYNC); 3420 (void)wait_status(adder, VSYNC); 3421 /* 3422 * now load the REAL sync values (in reverse order just to 3423 * be safe. 3424 */ 3425 adder->y_scan_count_3 = 0x0388; 3426 adder->y_scan_count_2 = 0x2366; 3427 adder->y_scan_count_1 = 0x3363; 3428 adder->y_scan_count_0 = 0x135F; 3429 } 3430 *memcsr = SYNC_ON | UNBLANK; /* turn off leds and turn on video */ 3431 /* 3432 * zero the index registers 3433 */ 3434 adder->x_index_pending = 0; 3435 adder->y_index_pending = 0; 3436 adder->x_index_new = 0; 3437 adder->y_index_new = 0; 3438 adder->x_index_old = 0; 3439 adder->y_index_old = 0; 3440 adder->pause = 0; 3441 /* 3442 * set rasterop mode to normal pen down 3443 */ 3444 adder->rasterop_mode = DST_WRITE_ENABLE | DST_INDEX_ENABLE | NORMAL; 3445 /* 3446 * set the rasterop registers to a default values 3447 */ 3448 adder->source_1_dx = 1; 3449 adder->source_1_dy = 1; 3450 adder->source_1_x = 0; 3451 adder->source_1_y = 0; 3452 adder->destination_x = 0; 3453 adder->destination_y = 0; 3454 adder->fast_dest_dx = 1; 3455 adder->fast_dest_dy = 0; 3456 adder->slow_dest_dx = 0; 3457 adder->slow_dest_dy = 1; 3458 adder->error_1 = 0; 3459 adder->error_2 = 0; 3460 /* 3461 * scale factor = UNITY 3462 */ 3463 adder->fast_scale = UNITY; 3464 adder->slow_scale = UNITY; 3465 /* 3466 * set the source 2 parameters 3467 */ 3468 adder->source_2_x = 0; 3469 adder->source_2_y = 0; 3470 adder->source_2_size = 0x0022; 3471 /* 3472 * initialize plane addresses for eight vipers 3473 */ 3474 write_ID(adder, CS_UPDATE_MASK, 0x0001); 3475 write_ID(adder, PLANE_ADDRESS, 0x0000); 3476 write_ID(adder, CS_UPDATE_MASK, 0x0002); 3477 write_ID(adder, PLANE_ADDRESS, 0x0001); 3478 write_ID(adder, CS_UPDATE_MASK, 0x0004); 3479 write_ID(adder, PLANE_ADDRESS, 0x0002); 3480 write_ID(adder, CS_UPDATE_MASK, 0x0008); 3481 write_ID(adder, PLANE_ADDRESS, 0x0003); 3482 write_ID(adder, CS_UPDATE_MASK, 0x0010); 3483 write_ID(adder, PLANE_ADDRESS, 0x0004); 3484 write_ID(adder, CS_UPDATE_MASK, 0x0020); 3485 write_ID(adder, PLANE_ADDRESS, 0x0005); 3486 write_ID(adder, CS_UPDATE_MASK, 0x0040); 3487 write_ID(adder, PLANE_ADDRESS, 0x0006); 3488 write_ID(adder, CS_UPDATE_MASK, 0x0080); 3489 write_ID(adder, PLANE_ADDRESS, 0x0007); 3490 /* 3491 * initialize the external registers. 3492 */ 3493 write_ID(adder, CS_UPDATE_MASK, 0x00FF); 3494 write_ID(adder, CS_SCROLL_MASK, 0x00FF); 3495 /* 3496 * initialize resolution mode 3497 */ 3498 write_ID(adder, MEMORY_BUS_WIDTH, 0x000C); /* bus width = 16 */ 3499 write_ID(adder, RESOLUTION_MODE, 0x0000); /* one bit/pixel */ 3500 /* 3501 * initialize viper registers 3502 */ 3503 write_ID(adder, SCROLL_CONSTANT, SCROLL_ENABLE|VIPER_LEFT|VIPER_UP); 3504 write_ID(adder, SCROLL_FILL, 0x0000); 3505 /* 3506 * set clipping and scrolling limits to full screen 3507 */ 3508 for (i = 1000, adder->status = 0; 3509 i > 0 && !(adder->status&ADDRESS_COMPLETE); --i) 3510 ; 3511 if (i == 0) 3512 printf("qd%d: setup_dragon: timeout on ADDRESS_COMPLETE\n",unit); 3513 top = 0; 3514 bottom = 2048; 3515 left = 0; 3516 right = 1024; 3517 adder->x_clip_min = left; 3518 adder->x_clip_max = right; 3519 adder->y_clip_min = top; 3520 adder->y_clip_max = bottom; 3521 adder->scroll_x_min = left; 3522 adder->scroll_x_max = right; 3523 adder->scroll_y_min = top; 3524 adder->scroll_y_max = bottom; 3525 (void)wait_status(adder, VSYNC); /* wait at LEAST 1 full frame */ 3526 (void)wait_status(adder, VSYNC); 3527 adder->x_index_pending = left; 3528 adder->y_index_pending = top; 3529 adder->x_index_new = left; 3530 adder->y_index_new = top; 3531 adder->x_index_old = left; 3532 adder->y_index_old = top; 3533 3534 for (i = 1000, adder->status = 0; i > 0 && 3535 !(adder->status&ADDRESS_COMPLETE) ; --i) 3536 ; 3537 if (i == 0) 3538 printf("qd%d: setup_dragon: timeout on ADDRESS_COMPLETE\n",unit); 3539 3540 write_ID(adder, LEFT_SCROLL_MASK, 0x0000); 3541 write_ID(adder, RIGHT_SCROLL_MASK, 0x0000); 3542 /* 3543 * set source and the mask register to all ones (ie: white) o 3544 */ 3545 write_ID(adder, SOURCE, 0xFFFF); 3546 write_ID(adder, MASK_1, 0xFFFF); 3547 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 255); 3548 write_ID(adder, VIPER_Z_LOAD | BACKGROUND_COLOR_Z, 0); 3549 /* 3550 * initialize Operand Control Register banks for fill command 3551 */ 3552 write_ID(adder, SRC1_OCR_A, EXT_NONE | INT_M1_M2 | NO_ID | WAIT); 3553 write_ID(adder, SRC2_OCR_A, EXT_NONE | INT_SOURCE | NO_ID | NO_WAIT); 3554 write_ID(adder, DST_OCR_A, EXT_NONE | INT_NONE | NO_ID | NO_WAIT); 3555 write_ID(adder, SRC1_OCR_B, EXT_NONE | INT_SOURCE | NO_ID | WAIT); 3556 write_ID(adder, SRC2_OCR_B, EXT_NONE | INT_M1_M2 | NO_ID | NO_WAIT); 3557 write_ID(adder, DST_OCR_B, EXT_NONE | INT_NONE | NO_ID | NO_WAIT); 3558 /* 3559 * init Logic Unit Function registers, (these are just common values, 3560 * and may be changed as required). 3561 */ 3562 write_ID(adder, LU_FUNCTION_R1, FULL_SRC_RESOLUTION | LF_SOURCE); 3563 write_ID(adder, LU_FUNCTION_R2, FULL_SRC_RESOLUTION | LF_SOURCE | 3564 INV_M1_M2); 3565 write_ID(adder, LU_FUNCTION_R3, FULL_SRC_RESOLUTION | LF_D_OR_S); 3566 write_ID(adder, LU_FUNCTION_R4, FULL_SRC_RESOLUTION | LF_D_XOR_S); 3567 /* 3568 * load the color map for black & white 3569 */ 3570 for (i = 0, adder->status = 0; i < 10000 && !(adder->status&VSYNC); ++i) 3571 ; 3572 3573 if (i == 0) 3574 printf("qd%d: setup_dragon: timeout on VSYNC\n", unit); 3575 3576 red = (short *) qdmap[unit].red; 3577 green = (short *) qdmap[unit].green; 3578 blue = (short *) qdmap[unit].blue; 3579 3580 *red++ = 0x00; /* black */ 3581 *green++ = 0x00; 3582 *blue++ = 0x00; 3583 3584 *red-- = 0xFF; /* white */ 3585 *green-- = 0xFF; 3586 *blue-- = 0xFF; 3587 3588 /* 3589 * set color map for mouse cursor 3590 */ 3591 3592 red += 254; 3593 green += 254; 3594 blue += 254; 3595 3596 *red++ = 0x00; /* black */ 3597 *green++ = 0x00; 3598 *blue++ = 0x00; 3599 3600 *red = 0xFF; /* white */ 3601 *green = 0xFF; 3602 *blue = 0xFF; 3603 3604 } /* setup_dragon */ 3605 3606 /* 3607 * Init the DUART and set defaults in input 3608 */ 3609 void 3610 setup_input(int unit) 3611 { 3612 volatile struct duart *duart; /* DUART register structure pointer */ 3613 int i, bits; 3614 char id_byte; 3615 3616 duart = (struct duart *) qdmap[unit].duart; 3617 duart->imask = 0; 3618 3619 /* 3620 * setup the DUART for kbd & pointing device 3621 */ 3622 duart->cmdA = RESET_M; /* reset mode reg ptr for kbd */ 3623 duart->modeA = 0x13; /* 8 bits, no parity, rcv IE, */ 3624 /* no RTS control,char error mode */ 3625 duart->modeA = 0x07; /* 1 stop bit,CTS does not IE XMT */ 3626 /* no RTS control,no echo or loop */ 3627 duart->cmdB = RESET_M; /* reset mode reg pntr for host */ 3628 duart->modeB = 0x07; /* 8 bits, odd parity, rcv IE.. */ 3629 /* ..no RTS cntrl, char error mode */ 3630 duart->modeB = 0x07; /* 1 stop bit,CTS does not IE XMT */ 3631 /* no RTS control,no echo or loop */ 3632 duart->auxctl = 0x00; /* baud rate set 1 */ 3633 duart->clkselA = 0x99; /* 4800 baud for kbd */ 3634 duart->clkselB = 0x99; /* 4800 baud for mouse */ 3635 3636 /* reset everything for keyboard */ 3637 3638 for (bits = RESET_M; bits < START_BREAK; bits += 0x10) 3639 duart->cmdA = bits; 3640 3641 /* reset everything for host */ 3642 3643 for (bits = RESET_M; bits < START_BREAK; bits += 0x10) 3644 duart->cmdB = bits; 3645 3646 duart->cmdA = EN_RCV | EN_XMT; /* enbl xmt & rcv for kbd */ 3647 duart->cmdB = EN_RCV | EN_XMT; /* enbl xmt & rcv for pointer device */ 3648 3649 /* 3650 * init keyboard defaults (DUART channel A) 3651 */ 3652 for (i = 500; i > 0; --i) { 3653 if (duart->statusA&XMT_RDY) { 3654 duart->dataA = LK_DEFAULTS; 3655 break; 3656 } 3657 } 3658 3659 for (i = 100000; i > 0; --i) { 3660 if (duart->statusA&RCV_RDY) { 3661 break; 3662 } 3663 } 3664 3665 if (duart->dataA) /* flush the ACK */ 3666 ; 3667 3668 /* 3669 * identify the pointing device 3670 */ 3671 for (i = 500; i > 0; --i) { 3672 if (duart->statusB&XMT_RDY) { 3673 duart->dataB = SELF_TEST; 3674 break; 3675 } 3676 } 3677 3678 /* 3679 * wait for 1st byte of self test report */ 3680 3681 for (i = 100000; i > 0; --i) { 3682 if (duart->statusB&RCV_RDY) { 3683 break; 3684 } 3685 } 3686 3687 if (i == 0) { 3688 printf("qd[%d]: setup_input: timeout on 1st byte of self test\n" 3689 ,unit); 3690 goto OUT; 3691 } 3692 3693 if (duart->dataB) 3694 ; 3695 3696 /* 3697 * wait for ID byte of self test report 3698 */ 3699 for (i = 100000; i > 0; --i) { 3700 if (duart->statusB&RCV_RDY) { 3701 break; 3702 } 3703 } 3704 3705 if (i == 0) { 3706 printf("qd[%d]: setup_input: timeout on 2nd byte of self test\n", unit); 3707 goto OUT; 3708 } 3709 3710 id_byte = duart->dataB; 3711 3712 /* 3713 * wait for other bytes to come in 3714 */ 3715 for (i = 100000; i > 0; --i) { 3716 if (duart->statusB & RCV_RDY) { 3717 if (duart->dataB) 3718 ; 3719 break; 3720 } 3721 } 3722 if (i == 0) { 3723 printf("qd[%d]: setup_input: timeout on 3rd byte of self test\n", unit); 3724 goto OUT; 3725 } 3726 for (i = 100000; i > 0; --i) { 3727 if (duart->statusB&RCV_RDY) { 3728 if (duart->dataB) 3729 ; 3730 break; 3731 } 3732 } 3733 if (i == 0) { 3734 printf("qd[%d]: setup_input: timeout on 4th byte of self test\n", unit); 3735 goto OUT; 3736 } 3737 /* 3738 * flag pointing device type and set defaults 3739 */ 3740 for (i=100000; i>0; --i) 3741 ; /*XXX*/ 3742 3743 if ((id_byte & 0x0F) != TABLET_ID) { 3744 qdflags[unit].pntr_id = MOUSE_ID; 3745 3746 for (i = 500; i > 0; --i) { 3747 if (duart->statusB&XMT_RDY) { 3748 duart->dataB = INC_STREAM_MODE; 3749 break; 3750 } 3751 } 3752 } 3753 else { 3754 qdflags[unit].pntr_id = TABLET_ID; 3755 3756 for (i = 500; i > 0; --i) { 3757 if (duart->statusB&XMT_RDY) { 3758 duart->dataB = T_STREAM; 3759 break; 3760 } 3761 } 3762 } 3763 OUT: 3764 duart->imask = qdflags[unit].duart_imask; 3765 3766 } /* setup_input */ 3767 3768 /* 3769 * delay for at least one display frame time 3770 * 3771 * return: BAD means that we timed out without ever seeing the 3772 * vertical sync status bit 3773 * GOOD otherwise 3774 */ 3775 int 3776 wait_status(volatile struct adder *adder, int mask) 3777 { 3778 int i; 3779 3780 for (i = 10000, adder->status = 0 ; i > 0 && 3781 !(adder->status&mask) ; --i) 3782 ; 3783 3784 if (i == 0) { 3785 printf("wait_status: timeout polling for 0x%x in adder->status\n", mask); 3786 return(BAD); 3787 } 3788 3789 return(GOOD); 3790 3791 } /* wait_status */ 3792 3793 /* 3794 * write out onto the ID bus 3795 */ 3796 void 3797 write_ID(volatile struct adder *adder, short adrs, short data) 3798 { 3799 int i; 3800 3801 for (i = 100000, adder->status = 0 ; 3802 i > 0 && !(adder->status&ADDRESS_COMPLETE) ; --i) 3803 ; 3804 3805 if (i == 0) 3806 goto ERR; 3807 3808 for (i = 100000, adder->status = 0 ; 3809 i > 0 && !(adder->status&TX_READY) ; --i) 3810 ; 3811 3812 if (i > 0) { 3813 adder->id_data = data; 3814 adder->command = ID_LOAD | adrs; 3815 return ; 3816 } 3817 3818 ERR: 3819 printf("write_ID: timeout trying to write to VIPER\n"); 3820 return ; 3821 3822 } /* write_ID */ 3823
Indexes created Mon Sep 29 21:09:56 GMT 2025