qd.c revision 1.55
1 /* $NetBSD: qd.c,v 1.55 2014/07/25 08:10:38 dholland 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 1.55 2014/07/25 08:10:38 dholland 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 decribes 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 shrade between the driver and it's client. 199 * The scroll parameter structures are ALL loacted 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 it's 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 initiallized 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 decending 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 * enble kbd & mouse intrpts in DUART mask reg 828 */ 829 qdflags[unit].duart_imask |= 0x22; 830 duart->imask = qdflags[unit].duart_imask; 831 } else { 832 /* Only one console */ 833 if (minor_dev) return ENXIO; 834 835 /* If not done already, allocate tty structure */ 836 if (qd_tty[minor_dev] == NULL) 837 qd_tty[minor_dev] = 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 SLIST_REMOVE(&qdrsel[unit].sel_klist, kn, knote, kn_selnext); 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 { 1, NULL, filt_qdrdetach, filt_qdread }; 1585 1586 static const struct filterops qdwrite_filtops = 1587 { 1, NULL, filt_qdrdetach, filt_qdwrite }; 1588 1589 int 1590 qdkqfilter(dev_t dev, struct knote *kn) 1591 { 1592 struct klist *klist; 1593 u_int minor_dev = minor(dev); 1594 int s, unit = minor_dev >> 2; 1595 1596 if ((minor_dev & 0x03) != 2) { 1597 /* TTY device. */ 1598 return (ttykqfilter(dev, kn)); 1599 } 1600 1601 switch (kn->kn_filter) { 1602 case EVFILT_READ: 1603 klist = &qdrsel[unit].sel_klist; 1604 kn->kn_fop = &qdread_filtops; 1605 break; 1606 1607 case EVFILT_WRITE: 1608 klist = &qdrsel[unit].sel_klist; 1609 kn->kn_fop = &qdwrite_filtops; 1610 break; 1611 1612 default: 1613 return (EINVAL); 1614 } 1615 1616 kn->kn_hook = (void *)(intptr_t) dev; 1617 1618 s = spl5(); 1619 SLIST_INSERT_HEAD(klist, kn, kn_selnext); 1620 splx(s); 1621 1622 return (0); 1623 } 1624 1625 void qd_strategy(struct buf *bp); 1626 1627 /*ARGSUSED*/ 1628 int 1629 qdwrite(dev_t dev, struct uio *uio, int flag) 1630 { 1631 struct tty *tp; 1632 int minor_dev; 1633 int unit; 1634 1635 minor_dev = minor(dev); 1636 unit = (minor_dev >> 2) & 0x07; 1637 1638 if (((minor_dev&0x03) != 0x02) && (qdflags[unit].inuse&CONS_DEV)) { 1639 /* 1640 * this is the console... 1641 */ 1642 tp = qd_tty[minor_dev]; 1643 return ((*tp->t_linesw->l_write)(tp, uio, flag)); 1644 } else if (qdflags[unit].inuse & GRAPHIC_DEV) { 1645 /* 1646 * this is a DMA xfer from user space 1647 */ 1648 return (physio(qd_strategy, NULL, dev, B_WRITE, minphys, uio)); 1649 } 1650 return (ENXIO); 1651 } 1652 1653 /*ARGSUSED*/ 1654 int 1655 qdread(dev_t dev, struct uio *uio, int flag) 1656 { 1657 struct tty *tp; 1658 int minor_dev; 1659 int unit; 1660 1661 minor_dev = minor(dev); 1662 unit = (minor_dev >> 2) & 0x07; 1663 1664 if ((minor_dev & 0x03) != 0x02 && qdflags[unit].inuse & CONS_DEV) { 1665 /* 1666 * this is the console 1667 */ 1668 tp = qd_tty[minor_dev]; 1669 return ((*tp->t_linesw->l_read)(tp, uio, flag)); 1670 } else if (qdflags[unit].inuse & GRAPHIC_DEV) { 1671 /* 1672 * this is a bitmap-to-processor xfer 1673 */ 1674 return (physio(qd_strategy, NULL, dev, B_READ, minphys, uio)); 1675 } 1676 return (ENXIO); 1677 } 1678 1679 /*************************************************************** 1680 * 1681 * qd_strategy()... strategy routine to do DMA 1682 * 1683 ***************************************************************/ 1684 1685 void 1686 qd_strategy(struct buf *bp) 1687 { 1688 volatile struct dga *dga; 1689 volatile struct adder *adder; 1690 int unit; 1691 int QBAreg; 1692 int s; 1693 int cookie; 1694 struct uba_softc *uh; 1695 1696 unit = (minor(bp->b_dev) >> 2) & 0x07; 1697 1698 uh = device_private(device_parent(device_lookup(&qd_cd, unit))); 1699 1700 /* 1701 * init pointers 1702 */ 1703 dga = (struct dga *) qdmap[unit].dga; 1704 panic("qd_strategy"); 1705 #ifdef notyet 1706 if ((QBAreg = ubasetup(uh, bp, 0)) == 0) { 1707 printf("qd%d: qd_strategy: QBA setup error\n", unit); 1708 goto STRAT_ERR; 1709 } 1710 #endif 1711 s = spl5(); 1712 qdflags[unit].user_dma = -1; 1713 dga->csr |= DMA_IE; 1714 cookie = QBAreg & 0x3FFFF; 1715 dga->adrs_lo = (short) cookie; 1716 dga->adrs_hi = (short) (cookie >> 16); 1717 dga->bytcnt_lo = (short) bp->b_bcount; 1718 dga->bytcnt_hi = (short) (bp->b_bcount >> 16); 1719 1720 while (qdflags[unit].user_dma) { 1721 (void) tsleep(&qdflags[unit].user_dma, QSPRIOR, 1722 "qdstrat", 0); 1723 } 1724 splx(s); 1725 #ifdef notyet 1726 ubarelse(uh, &QBAreg); 1727 #endif 1728 if (!(dga->csr & DMA_ERR)) { 1729 biodone(bp); 1730 return; 1731 } 1732 1733 /* STRAT_ERR: */ 1734 adder = (struct adder *) qdmap[unit].adder; 1735 adder->command = CANCEL; /* cancel adder activity */ 1736 dga->csr &= ~DMA_IE; 1737 dga->csr &= ~0x0600; /* halt DMA (reset fifo) */ 1738 dga->csr |= DMA_ERR; /* clear error condition */ 1739 bp->b_error = EIO; /* flag an error to physio() */ 1740 1741 /* 1742 * if DMA was running, flush spurious intrpt 1743 */ 1744 if (dga->bytcnt_lo != 0) { 1745 dga->bytcnt_lo = 0; 1746 dga->bytcnt_hi = 0; 1747 DMA_SETIGNORE(DMAheader[unit]); 1748 dga->csr |= DMA_IE; 1749 } 1750 biodone(bp); 1751 } /* qd_strategy */ 1752 1753 1754 /* 1755 * Start output to the console screen 1756 */ 1757 void qdstart(tp) 1758 struct tty *tp; 1759 { 1760 int which_unit, unit, c; 1761 int s; 1762 1763 unit = minor(tp->t_dev); 1764 which_unit = (unit >> 2) & 0x3; 1765 unit &= 0x03; 1766 1767 s = spl5(); 1768 1769 /* 1770 * If it's currently active, or delaying, no need to do anything. 1771 */ 1772 if (tp->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP)) 1773 goto out; 1774 1775 /* 1776 * Display chars until the queue is empty. 1777 * Drop input from anything but the console 1778 * device on the floor. 1779 * 1780 * XXX - this loop is done at spltty. 1781 * 1782 */ 1783 while (tp->t_outq.c_cc) { 1784 c = getc(&tp->t_outq); 1785 if (unit == 0) 1786 blitc(which_unit, (u_char)c); 1787 } 1788 ttypull(tp); 1789 tp->t_state &= ~TS_BUSY; 1790 1791 out: 1792 splx(s); 1793 1794 } /* qdstart */ 1795 1796 /*ARGSUSED*/ 1797 void 1798 qdstop(struct tty *tp, int flag) 1799 { 1800 int s; 1801 1802 s = spl5(); /* block intrpts during state modification */ 1803 if (tp->t_state & TS_BUSY) { 1804 if ((tp->t_state & TS_TTSTOP) == 0) 1805 tp->t_state |= TS_FLUSH; 1806 else 1807 tp->t_state &= ~TS_BUSY; 1808 } 1809 splx(s); 1810 } 1811 1812 /* 1813 * Output a character to the QDSS screen 1814 */ 1815 void 1816 blitc(int unit, u_char chr) 1817 { 1818 volatile struct adder *adder; 1819 volatile struct dga *dga; 1820 int i; 1821 int nograph = !(qdflags[unit].inuse&GRAPHIC_DEV); 1822 static short inescape[NQD]; 1823 1824 adder = (struct adder *)qdmap[unit].adder; 1825 dga = (struct dga *) qdmap[unit].dga; 1826 /* 1827 * BSD comment: this (&=0177) defeats the extended character 1828 * set code for the glass tty, but if i had the time i would 1829 * spend it ripping out the code completely. This driver 1830 * is too big for its own good. 1831 */ 1832 chr &= 0177; 1833 /* 1834 * Cursor addressing (so vi will work). 1835 * Decode for "\E=%.%." cursor motion description. 1836 * Corresponds to type "qdcons" in /etc/termcap: 1837 * 1838 * qd|qdss|qdcons|qdss glass tty (4.4 BSD):\ 1839 * :am:do=^J:le=^H:bs:cm=\E=%.%.:cl=1^Z:co#128:li#57::nd=^L:up=^K: 1840 * 1841 */ 1842 if (inescape[unit] && nograph) { 1843 switch (inescape[unit]++) { 1844 case 1: 1845 if (chr != '=') { 1846 /* abort escape sequence */ 1847 inescape[unit] = 0; 1848 blitc(unit, chr); 1849 } 1850 return; 1851 case 2: 1852 /* position row */ 1853 cursor[unit].y = CHAR_HEIGHT * chr; 1854 if (cursor[unit].y > 863 - CHAR_HEIGHT) 1855 cursor[unit].y = 863 - CHAR_HEIGHT; 1856 dga->y_cursor = TRANY(cursor[unit].y); 1857 return; 1858 case 3: 1859 /* position column */ 1860 cursor[unit].x = CHAR_WIDTH * chr; 1861 if (cursor[unit].x > 1024 - CHAR_WIDTH) 1862 cursor[unit].x = 1023 - CHAR_WIDTH; 1863 dga->x_cursor = TRANX(cursor[unit].x); 1864 inescape[unit] = 0; 1865 return; 1866 default: 1867 inescape[unit] = 0; 1868 blitc(unit, chr); 1869 } 1870 } 1871 1872 switch (chr) { 1873 case '\r': /* return char */ 1874 cursor[unit].x = 0; 1875 if (nograph) 1876 dga->x_cursor = TRANX(cursor[unit].x); 1877 return; 1878 1879 case '\t': /* tab char */ 1880 for (i = 8 - ((cursor[unit].x >> 3) & 0x07); i > 0; --i) { 1881 blitc(unit, ' '); 1882 } 1883 return; 1884 1885 case '\n': /* line feed char */ 1886 if ((cursor[unit].y += CHAR_HEIGHT) > (863 - CHAR_HEIGHT)) { 1887 if (nograph) { 1888 cursor[unit].y -= CHAR_HEIGHT; 1889 scroll_up(adder); 1890 } else 1891 cursor[unit].y = 0; 1892 } 1893 if (nograph) 1894 dga->y_cursor = TRANY(cursor[unit].y); 1895 return; 1896 1897 case '\b': /* backspace char */ 1898 if (cursor[unit].x > 0) { 1899 cursor[unit].x -= CHAR_WIDTH; 1900 if (nograph) 1901 dga->x_cursor = TRANX(cursor[unit].x); 1902 } 1903 return; 1904 case CTRL('k'): /* cursor up */ 1905 if (nograph && cursor[unit].y > 0) { 1906 cursor[unit].y -= CHAR_HEIGHT; 1907 dga->y_cursor = TRANY(cursor[unit].y); 1908 } 1909 return; 1910 1911 case CTRL('^'): /* home cursor */ 1912 if (nograph) { 1913 cursor[unit].x = 0; 1914 dga->x_cursor = TRANX(cursor[unit].x); 1915 cursor[unit].y = 0; 1916 dga->y_cursor = TRANY(cursor[unit].y); 1917 } 1918 return; 1919 1920 case CTRL('l'): /* cursor right */ 1921 if (nograph && cursor[unit].x < 1023 - CHAR_WIDTH) { 1922 cursor[unit].x += CHAR_WIDTH; 1923 dga->x_cursor = TRANX(cursor[unit].x); 1924 } 1925 return; 1926 1927 case CTRL('z'): /* clear screen */ 1928 if (nograph) { 1929 setup_dragon(unit); 1930 clear_qd_screen(unit); 1931 /* home cursor - termcap seems to assume this */ 1932 cursor[unit].x = 0; 1933 dga->x_cursor = TRANX(cursor[unit].x); 1934 cursor[unit].y = 0; 1935 dga->y_cursor = TRANY(cursor[unit].y); 1936 } 1937 return; 1938 1939 case '\033': /* start escape sequence */ 1940 if (nograph) 1941 inescape[unit] = 1; 1942 return; 1943 1944 default: 1945 if ((chr < ' ') || (chr > '~')) 1946 return; 1947 } 1948 /* 1949 * setup VIPER operand control registers 1950 */ 1951 write_ID(adder, CS_UPDATE_MASK, 0x0001); /* select plane #0 */ 1952 write_ID(adder, SRC1_OCR_B, 1953 EXT_NONE | INT_SOURCE | ID | BAR_SHIFT_DELAY); 1954 write_ID(adder, CS_UPDATE_MASK, 0x00FE); /* select other planes */ 1955 write_ID(adder, SRC1_OCR_B, 1956 EXT_SOURCE | INT_NONE | NO_ID | BAR_SHIFT_DELAY); 1957 write_ID(adder, CS_UPDATE_MASK, 0x00FF); /* select all planes */ 1958 write_ID(adder, DST_OCR_B, 1959 EXT_NONE | INT_NONE | NO_ID | NO_BAR_SHIFT_DELAY); 1960 write_ID(adder, MASK_1, 0xFFFF); 1961 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 1); 1962 write_ID(adder, VIPER_Z_LOAD | BACKGROUND_COLOR_Z, 0); 1963 adder->x_clip_min = 0; 1964 adder->x_clip_max = 1024; 1965 adder->y_clip_min = 0; 1966 adder->y_clip_max = 864; 1967 /* 1968 * load DESTINATION origin and vectors 1969 */ 1970 adder->fast_dest_dy = 0; 1971 adder->slow_dest_dx = 0; 1972 adder->error_1 = 0; 1973 adder->error_2 = 0; 1974 adder->rasterop_mode = DST_WRITE_ENABLE | NORMAL; 1975 (void)wait_status(adder, RASTEROP_COMPLETE); 1976 adder->destination_x = cursor[unit].x; 1977 adder->fast_dest_dx = CHAR_WIDTH; 1978 adder->destination_y = cursor[unit].y; 1979 adder->slow_dest_dy = CHAR_HEIGHT; 1980 /* 1981 * load SOURCE origin and vectors 1982 */ 1983 if ((chr - ' ') > (CHARS - 1)) { 1984 printf("Invalid character (x)%x in blitc\n",chr); 1985 chr = ' '; 1986 } 1987 /* 1988 * X position is modulo the number of characters per line 1989 */ 1990 adder->source_1_x = FONT_X + 1991 (((chr - ' ') % (MAX_SCREEN_X/CHAR_WIDTH)) * CHAR_WIDTH); 1992 /* 1993 * Point to either first or second row 1994 */ 1995 adder->source_1_y = 2048 - 15 * 1996 (((chr - ' ')/(MAX_SCREEN_X/CHAR_WIDTH)) + 1); 1997 adder->source_1_dx = CHAR_WIDTH; 1998 adder->source_1_dy = CHAR_HEIGHT; 1999 write_ID(adder, LU_FUNCTION_R1, FULL_SRC_RESOLUTION | LF_SOURCE); 2000 adder->cmd = RASTEROP | OCRB | 0 | S1E | DTE; 2001 /* 2002 * update console cursor coordinates 2003 */ 2004 cursor[unit].x += CHAR_WIDTH; 2005 if (nograph) 2006 dga->x_cursor = TRANX(cursor[unit].x); 2007 if (cursor[unit].x > (1024 - CHAR_WIDTH)) { 2008 blitc(unit, '\r'); 2009 blitc(unit, '\n'); 2010 } 2011 2012 } /* blitc */ 2013 2014 /* 2015 * INTERRUPT SERVICE ROUTINES 2016 */ 2017 2018 /* 2019 * Service "DMA DONE" interrupt condition 2020 */ 2021 2022 static void 2023 qddint(void *arg) 2024 { 2025 device_t dv = arg; 2026 struct DMAreq_header *header; 2027 struct DMAreq *request; 2028 volatile struct dga *dga; 2029 volatile struct adder *adder; 2030 int cookie; /* DMA adrs for QDSS */ 2031 int unit = device_unit(dv); 2032 2033 (void)spl4(); /* allow interval timer in */ 2034 2035 /* 2036 * init pointers 2037 */ 2038 header = DMAheader[unit]; /* register for optimization */ 2039 dga = (struct dga *) qdmap[unit].dga; 2040 adder = (struct adder *) qdmap[unit].adder; 2041 2042 /* 2043 * if this interrupt flagged as bogus for interrupt flushing purposes.. 2044 */ 2045 if (DMA_ISIGNORE(header)) { 2046 DMA_CLRIGNORE(header); 2047 return; 2048 } 2049 2050 /* 2051 * dump a DMA hardware error message if appropriate 2052 */ 2053 if (dga->csr & DMA_ERR) { 2054 2055 if (dga->csr & PARITY_ERR) 2056 printf("qd%d: qddint: DMA hardware parity fault.\n", unit); 2057 2058 if (dga->csr & BUS_ERR) 2059 printf("qd%d: qddint: DMA hardware bus error.\n", unit); 2060 } 2061 2062 /* 2063 * if this was a DMA from user space... 2064 */ 2065 if (qdflags[unit].user_dma) { 2066 qdflags[unit].user_dma = 0; 2067 wakeup((void *)&qdflags[unit].user_dma); 2068 return; 2069 } 2070 2071 /* 2072 * if we're doing DMA request queue services, field the error condition 2073 */ 2074 if (dga->csr & DMA_ERR) { 2075 2076 dga->csr &= ~0x0600; /* halt DMA (reset fifo) */ 2077 dga->csr |= DMA_ERR; /* clear error condition */ 2078 adder->command = CANCEL; /* cancel adder activity */ 2079 2080 DMA_SETERROR(header); /* flag error in header status word */ 2081 DMA_CLRACTIVE(header); 2082 header->DMAreq[header->oldest].DMAdone |= HARD_ERROR; 2083 header->newest = header->oldest; 2084 header->used = 0; 2085 2086 selnotify(&qdrsel[unit], 0, 0); 2087 2088 if (dga->bytcnt_lo != 0) { 2089 dga->bytcnt_lo = 0; 2090 dga->bytcnt_hi = 0; 2091 DMA_SETIGNORE(header); 2092 } 2093 return; 2094 } 2095 2096 /* 2097 * if the DMA request queue is now becoming non-full, 2098 * wakeup "select" client. 2099 */ 2100 if (DMA_ISFULL(header)) { 2101 selnotify(&qdrsel[unit], 0, 0); 2102 } 2103 2104 header->DMAreq[header->oldest].DMAdone |= REQUEST_DONE; 2105 QDlast_DMAtype = header->DMAreq[header->oldest].DMAtype; 2106 2107 /* check for unexpected interrupt */ 2108 if (DMA_ISEMPTY(header)) 2109 return; 2110 2111 DMA_GETEND(header); /* update request queue indices */ 2112 2113 /* 2114 * if no more DMA pending, wake up "select" client and exit 2115 */ 2116 if (DMA_ISEMPTY(header)) { 2117 selnotify(&qdrsel[unit], 0, 0); 2118 DMA_CLRACTIVE(header); /* flag DMA done */ 2119 return; 2120 } 2121 2122 /* 2123 * initiate next DMA xfer 2124 */ 2125 request = DMA_GETBEGIN(header); 2126 if (request->DMAtype != QDlast_DMAtype) { 2127 dga->csr &= ~0x0600; /* halt DMA (reset fifo) */ 2128 adder->command = CANCEL; /* cancel adder activity */ 2129 } 2130 2131 2132 switch (request->DMAtype) { 2133 2134 case DISPLIST: 2135 if (request->DMAtype != QDlast_DMAtype) { 2136 dga->csr |= DL_ENB; 2137 dga->csr &= ~(BTOP_ENB | BYTE_DMA); 2138 } 2139 break; 2140 2141 case PTOB: 2142 if (request->DMAtype != QDlast_DMAtype) { 2143 if (request->DMAdone & BYTE_PACK) 2144 dga->csr |= (PTOB_ENB | BYTE_DMA); 2145 else { 2146 dga->csr |= PTOB_ENB; 2147 dga->csr &= ~BYTE_DMA; 2148 } 2149 } 2150 break; 2151 2152 case BTOP: 2153 if (request->DMAtype != QDlast_DMAtype) { 2154 if (request->DMAdone & BYTE_PACK) { 2155 dga->csr &= ~DL_ENB; 2156 dga->csr |= (BTOP_ENB | BYTE_DMA); 2157 } 2158 else { 2159 dga->csr |= BTOP_ENB; 2160 dga->csr &= ~(BYTE_DMA | DL_ENB); 2161 } 2162 } 2163 break; 2164 default: 2165 printf("qd%d: qddint: illegal DMAtype parameter.\n", unit); 2166 DMA_CLRACTIVE(header); /* flag DMA done */ 2167 return; 2168 } 2169 2170 if (request->DMAdone & COUNT_ZERO) { 2171 dga->csr &= ~SET_DONE_FIFO; 2172 } 2173 else if (request->DMAdone & FIFO_EMPTY) { 2174 dga->csr |= SET_DONE_FIFO; 2175 } 2176 2177 if (request->DMAdone & WORD_PACK) 2178 dga->csr &= ~BYTE_DMA; 2179 else if (request->DMAdone & BYTE_PACK) 2180 dga->csr |= BYTE_DMA; 2181 2182 dga->csr |= DMA_IE; 2183 QDlast_DMAtype = request->DMAtype; 2184 2185 cookie = ((int)request->bufp - (int)header) + (int)header->QBAreg; 2186 2187 dga->adrs_lo = (short) cookie; 2188 dga->adrs_hi = (short) (cookie >> 16); 2189 2190 dga->bytcnt_lo = (short) request->length; 2191 dga->bytcnt_hi = (short) (request->length >> 16); 2192 2193 return; 2194 } 2195 2196 /* 2197 * ADDER interrupt service routine 2198 */ 2199 static void 2200 qdaint(void *arg) 2201 { 2202 device_t dv = arg; 2203 volatile struct adder *adder; 2204 struct color_buf *cbuf; 2205 int i; 2206 struct rgb *rgbp; 2207 volatile short *red; 2208 volatile short *green; 2209 volatile short *blue; 2210 int unit = device_unit(dv); 2211 2212 (void)spl4(); /* allow interval timer in */ 2213 2214 adder = (struct adder *) qdmap[unit].adder; 2215 2216 /* 2217 * service the vertical blank interrupt (VSYNC bit) by loading 2218 * any pending color map load request 2219 */ 2220 if (adder->status & VSYNC) { 2221 adder->status &= ~VSYNC; /* clear the interrupt */ 2222 cbuf = color_buf[unit]; 2223 if (cbuf->status & LOAD_COLOR_MAP) { 2224 2225 red = (short *) qdmap[unit].red; 2226 green = (short *) qdmap[unit].green; 2227 blue = (short *) qdmap[unit].blue; 2228 2229 for (i = cbuf->count, rgbp = cbuf->rgb; 2230 --i >= 0; rgbp++) { 2231 red[rgbp->offset] = (short) rgbp->red; 2232 green[rgbp->offset] = (short) rgbp->green; 2233 blue[rgbp->offset] = (short) rgbp->blue; 2234 } 2235 2236 cbuf->status &= ~LOAD_COLOR_MAP; 2237 } 2238 } 2239 2240 /* 2241 * service the scroll interrupt (FRAME_SYNC bit) 2242 */ 2243 if (adder->status & FRAME_SYNC) { 2244 adder->status &= ~FRAME_SYNC; /* clear the interrupt */ 2245 2246 if (scroll[unit]->status & LOAD_REGS) { 2247 2248 for (i = 1000, adder->status = 0; i > 0 && 2249 !(adder->status&ID_SCROLL_READY); --i) 2250 ; 2251 2252 if (i == 0) { 2253 printf("qd%d: qdaint: timeout on ID_SCROLL_READY\n", 2254 qd); 2255 return; 2256 } 2257 2258 adder->ID_scroll_data = scroll[unit]->viper_constant; 2259 adder->ID_scroll_command = ID_LOAD | SCROLL_CONSTANT; 2260 2261 adder->y_scroll_constant = 2262 scroll[unit]->y_scroll_constant; 2263 adder->y_offset_pending = scroll[unit]->y_offset; 2264 2265 if (scroll[unit]->status & LOAD_INDEX) { 2266 2267 adder->x_index_pending = 2268 scroll[unit]->x_index_pending; 2269 adder->y_index_pending = 2270 scroll[unit]->y_index_pending; 2271 } 2272 2273 scroll[unit]->status = 0x00; 2274 } 2275 } 2276 } 2277 2278 /* 2279 * DUART input interrupt service routine 2280 * 2281 * XXX - this routine should be broken out - it is essentially 2282 * straight line code. 2283 */ 2284 2285 static void 2286 qdiint(void *arg) 2287 { 2288 device_t dv = arg; 2289 struct _vs_event *event; 2290 struct qdinput *eqh; 2291 volatile struct dga *dga; 2292 volatile struct duart *duart; 2293 struct mouse_report *new_rep; 2294 struct tty *tp; 2295 u_short chr; 2296 u_short status; 2297 u_short data; 2298 u_short key; 2299 char do_wakeup = 0; /* flag to do a select wakeup call */ 2300 char a, b, c; /* mouse button test variables */ 2301 int unit = device_unit(dv); 2302 2303 (void)spl4(); /* allow interval timer in */ 2304 2305 eqh = eq_header[unit]; /* optimized as a register */ 2306 new_rep = ¤t_rep[unit]; 2307 duart = (struct duart *) qdmap[unit].duart; 2308 2309 /* 2310 * if the graphic device is turned on.. 2311 */ 2312 if (qdflags[unit].inuse & GRAPHIC_DEV) { 2313 /* 2314 * empty DUART 2315 */ 2316 while (duart->statusA&RCV_RDY || duart->statusB&RCV_RDY) { 2317 /* 2318 * pick up LK-201 input (if any) 2319 */ 2320 if (duart->statusA&RCV_RDY) { 2321 2322 /* if error condition, then reset it */ 2323 2324 if (duart->statusA&0x70) { 2325 duart->cmdA = 0x40; 2326 continue; 2327 } 2328 2329 /* event queue full now? (overflow condition) */ 2330 2331 if (ISFULL(eqh) == TRUE) { 2332 printf( 2333 "qd%d: qdiint: event queue overflow\n", 2334 qd); 2335 break; 2336 } 2337 2338 /* 2339 * Check for various keyboard errors */ 2340 2341 key = duart->dataA & 0xFF; 2342 2343 if (key==LK_POWER_ERROR || 2344 key==LK_KDOWN_ERROR || 2345 key == LK_INPUT_ERROR || 2346 key == LK_OUTPUT_ERROR) { 2347 printf( 2348 "qd%d: qdiint: keyboard error, code = %x\n", 2349 qd,key); 2350 return; 2351 } 2352 2353 if (key < LK_LOWEST) 2354 return; 2355 2356 ++do_wakeup; /* request a select wakeup call */ 2357 2358 event = PUTBEGIN(eqh); 2359 PUTEND(eqh); 2360 2361 event->vse_key = key; 2362 event->vse_key &= 0x00FF; 2363 event->vse_x = eqh->curs_pos.x; 2364 event->vse_y = eqh->curs_pos.y; 2365 event->vse_time = TOY; 2366 event->vse_type = VSE_BUTTON; 2367 event->vse_direction = VSE_KBTRAW; 2368 event->vse_device = VSE_DKB; 2369 } 2370 2371 /* 2372 * pick up the mouse input (if any) */ 2373 2374 if ((status = duart->statusB) & RCV_RDY && 2375 qdflags[unit].pntr_id == MOUSE_ID) { 2376 2377 if (status & 0x70) { 2378 duart->cmdB = 0x40; 2379 continue; 2380 } 2381 2382 /* event queue full now? (overflow condition) */ 2383 2384 if (ISFULL(eqh) == TRUE) { 2385 printf( 2386 "qd%d: qdiint: event queue overflow\n", 2387 qd); 2388 break; 2389 } 2390 2391 data = duart->dataB; /* get report byte */ 2392 ++new_rep->bytcnt; /* bump report byte count */ 2393 2394 /* 2395 * if 1st byte of report.. */ 2396 2397 if ( data & START_FRAME) { 2398 new_rep->state = data; 2399 if (new_rep->bytcnt > 1) { 2400 /* start of new frame */ 2401 new_rep->bytcnt = 1; 2402 /* ..continue looking */ 2403 continue; 2404 } 2405 } 2406 2407 /* 2408 * if 2nd byte of report.. */ 2409 2410 else if (new_rep->bytcnt == 2) { 2411 new_rep->dx = data & 0x00FF; 2412 } 2413 2414 /* 2415 * if 3rd byte of report, load input event queue */ 2416 2417 else if (new_rep->bytcnt == 3) { 2418 2419 new_rep->dy = data & 0x00FF; 2420 new_rep->bytcnt = 0; 2421 2422 /* 2423 * if mouse position has changed.. */ 2424 2425 if (new_rep->dx != 0 || new_rep->dy != 0) { 2426 2427 /* 2428 * calculate acceleration factor, if needed */ 2429 2430 if (qdflags[unit].curs_acc > ACC_OFF) { 2431 2432 if (qdflags[unit].curs_thr <= new_rep->dx) 2433 new_rep->dx += 2434 (new_rep->dx - qdflags[unit].curs_thr) 2435 * qdflags[unit].curs_acc; 2436 2437 if (qdflags[unit].curs_thr <= new_rep->dy) 2438 new_rep->dy += 2439 (new_rep->dy - qdflags[unit].curs_thr) 2440 * qdflags[unit].curs_acc; 2441 } 2442 2443 /* 2444 * update cursor position coordinates */ 2445 2446 if (new_rep->state & X_SIGN) { 2447 eqh->curs_pos.x += new_rep->dx; 2448 if (eqh->curs_pos.x > 1023) 2449 eqh->curs_pos.x = 1023; 2450 } 2451 else { 2452 eqh->curs_pos.x -= new_rep->dx; 2453 if (eqh->curs_pos.x < -15) 2454 eqh->curs_pos.x = -15; 2455 } 2456 2457 if (new_rep->state & Y_SIGN) { 2458 eqh->curs_pos.y -= new_rep->dy; 2459 if (eqh->curs_pos.y < -15) 2460 eqh->curs_pos.y = -15; 2461 } 2462 else { 2463 eqh->curs_pos.y += new_rep->dy; 2464 if (eqh->curs_pos.y > 863) 2465 eqh->curs_pos.y = 863; 2466 } 2467 2468 /* 2469 * update cursor screen position */ 2470 2471 dga = (struct dga *) qdmap[unit].dga; 2472 dga->x_cursor = TRANX(eqh->curs_pos.x); 2473 dga->y_cursor = TRANY(eqh->curs_pos.y); 2474 2475 /* 2476 * if cursor is in the box, no event report */ 2477 2478 if (eqh->curs_pos.x <= eqh->curs_box.right && 2479 eqh->curs_pos.x >= eqh->curs_box.left && 2480 eqh->curs_pos.y >= eqh->curs_box.top && 2481 eqh->curs_pos.y <= eqh->curs_box.bottom ) { 2482 goto GET_MBUTTON; 2483 } 2484 2485 /* 2486 * report the mouse motion event */ 2487 2488 event = PUTBEGIN(eqh); 2489 PUTEND(eqh); 2490 2491 ++do_wakeup; /* request a select wakeup call */ 2492 2493 event->vse_x = eqh->curs_pos.x; 2494 event->vse_y = eqh->curs_pos.y; 2495 2496 event->vse_device = VSE_MOUSE; /* mouse */ 2497 event->vse_type = VSE_MMOTION; /* pos changed */ 2498 event->vse_key = 0; 2499 event->vse_direction = 0; 2500 event->vse_time = TOY; /* time stamp */ 2501 } 2502 2503 GET_MBUTTON: 2504 /* 2505 * if button state has changed */ 2506 2507 a = new_rep->state & 0x07; /*mask nonbutton bits */ 2508 b = last_rep[unit].state & 0x07; 2509 2510 if (a ^ b) { 2511 2512 for ( c = 1; c < 8; c <<= 1) { 2513 2514 if (!( c & (a ^ b))) /* this button change? */ 2515 continue; 2516 2517 /* event queue full? (overflow condition) */ 2518 2519 if (ISFULL(eqh) == TRUE) { 2520 printf("qd%d: qdiint: event queue overflow\n", qd); 2521 break; 2522 } 2523 2524 event = PUTBEGIN(eqh); /* get new event */ 2525 PUTEND(eqh); 2526 2527 ++do_wakeup; /* request select wakeup */ 2528 2529 event->vse_x = eqh->curs_pos.x; 2530 event->vse_y = eqh->curs_pos.y; 2531 2532 event->vse_device = VSE_MOUSE; /* mouse */ 2533 event->vse_type = VSE_BUTTON; /* new button */ 2534 event->vse_time = TOY; /* time stamp */ 2535 2536 /* flag changed button and if up or down */ 2537 2538 if (c == RIGHT_BUTTON) 2539 event->vse_key = VSE_RIGHT_BUTTON; 2540 else if (c == MIDDLE_BUTTON) 2541 event->vse_key = VSE_MIDDLE_BUTTON; 2542 else if (c == LEFT_BUTTON) 2543 event->vse_key = VSE_LEFT_BUTTON; 2544 2545 /* set bit = button depressed */ 2546 2547 if (c & a) 2548 event->vse_direction = VSE_KBTDOWN; 2549 else 2550 event->vse_direction = VSE_KBTUP; 2551 } 2552 } 2553 2554 /* refresh last report */ 2555 2556 last_rep[unit] = current_rep[unit]; 2557 2558 } /* get last byte of report */ 2559 } else if ((status = duart->statusB)&RCV_RDY && 2560 qdflags[unit].pntr_id == TABLET_ID) { 2561 /* 2562 * pickup tablet input, if any 2563 */ 2564 if (status&0x70) { 2565 duart->cmdB = 0x40; 2566 continue; 2567 } 2568 /* 2569 * event queue full now? (overflow condition) 2570 */ 2571 if (ISFULL(eqh) == TRUE) { 2572 printf("qd%d: qdiint: event queue overflow\n", qd); 2573 break; 2574 } 2575 2576 data = duart->dataB; /* get report byte */ 2577 ++new_rep->bytcnt; /* bump report byte count */ 2578 2579 /* 2580 * if 1st byte of report.. */ 2581 2582 if (data & START_FRAME) { 2583 new_rep->state = data; 2584 if (new_rep->bytcnt > 1) { 2585 new_rep->bytcnt = 1; /* start of new frame */ 2586 continue; /* ..continue looking */ 2587 } 2588 } 2589 2590 /* 2591 * if 2nd byte of report.. */ 2592 2593 else if (new_rep->bytcnt == 2) { 2594 new_rep->dx = data & 0x3F; 2595 } 2596 2597 /* 2598 * if 3rd byte of report.. */ 2599 2600 else if (new_rep->bytcnt == 3) { 2601 new_rep->dx |= (data & 0x3F) << 6; 2602 } 2603 2604 /* 2605 * if 4th byte of report.. */ 2606 2607 else if (new_rep->bytcnt == 4) { 2608 new_rep->dy = data & 0x3F; 2609 } 2610 2611 /* 2612 * if 5th byte of report, load input event queue */ 2613 2614 else if (new_rep->bytcnt == 5) { 2615 2616 new_rep->dy |= (data & 0x3F) << 6; 2617 new_rep->bytcnt = 0; 2618 2619 /* 2620 * update cursor position coordinates */ 2621 2622 new_rep->dx /= qdflags[unit].tab_res; 2623 new_rep->dy = (2200 - new_rep->dy) 2624 / qdflags[unit].tab_res; 2625 2626 if (new_rep->dx > 1023) { 2627 new_rep->dx = 1023; 2628 } 2629 if (new_rep->dy > 863) { 2630 new_rep->dy = 863; 2631 } 2632 2633 /* 2634 * report an event if the puck/stylus has moved 2635 */ 2636 2637 if (eqh->curs_pos.x != new_rep->dx || 2638 eqh->curs_pos.y != new_rep->dy) { 2639 2640 eqh->curs_pos.x = new_rep->dx; 2641 eqh->curs_pos.y = new_rep->dy; 2642 2643 /* 2644 * update cursor screen position */ 2645 2646 dga = (struct dga *) qdmap[unit].dga; 2647 dga->x_cursor = TRANX(eqh->curs_pos.x); 2648 dga->y_cursor = TRANY(eqh->curs_pos.y); 2649 2650 /* 2651 * if cursor is in the box, no event report 2652 */ 2653 2654 if (eqh->curs_pos.x <= eqh->curs_box.right && 2655 eqh->curs_pos.x >= eqh->curs_box.left && 2656 eqh->curs_pos.y >= eqh->curs_box.top && 2657 eqh->curs_pos.y <= eqh->curs_box.bottom ) { 2658 goto GET_TBUTTON; 2659 } 2660 2661 /* 2662 * report the tablet motion event */ 2663 2664 event = PUTBEGIN(eqh); 2665 PUTEND(eqh); 2666 2667 ++do_wakeup; /* request a select wakeup call */ 2668 2669 event->vse_x = eqh->curs_pos.x; 2670 event->vse_y = eqh->curs_pos.y; 2671 2672 event->vse_device = VSE_TABLET; /* tablet */ 2673 /* 2674 * right now, X handles tablet motion the same 2675 * as mouse motion 2676 */ 2677 event->vse_type = VSE_MMOTION; /* pos changed */ 2678 event->vse_key = 0; 2679 event->vse_direction = 0; 2680 event->vse_time = TOY; /* time stamp */ 2681 } 2682 GET_TBUTTON: 2683 /* 2684 * if button state has changed */ 2685 2686 a = new_rep->state & 0x1E; /* mask nonbutton bits */ 2687 b = last_rep[unit].state & 0x1E; 2688 2689 if (a ^ b) { 2690 2691 /* event queue full now? (overflow condition) */ 2692 2693 if (ISFULL(eqh) == TRUE) { 2694 printf("qd%d: qdiint: event queue overflow\n",qd); 2695 break; 2696 } 2697 2698 event = PUTBEGIN(eqh); /* get new event */ 2699 PUTEND(eqh); 2700 2701 ++do_wakeup; /* request a select wakeup call */ 2702 2703 event->vse_x = eqh->curs_pos.x; 2704 event->vse_y = eqh->curs_pos.y; 2705 2706 event->vse_device = VSE_TABLET; /* tablet */ 2707 event->vse_type = VSE_BUTTON; /* button changed */ 2708 event->vse_time = TOY; /* time stamp */ 2709 2710 /* define the changed button and if up or down */ 2711 2712 for ( c = 1; c <= 0x10; c <<= 1) { 2713 if (c & (a ^ b)) { 2714 if (c == T_LEFT_BUTTON) 2715 event->vse_key = VSE_T_LEFT_BUTTON; 2716 else if (c == T_FRONT_BUTTON) 2717 event->vse_key = VSE_T_FRONT_BUTTON; 2718 else if (c == T_RIGHT_BUTTON) 2719 event->vse_key = VSE_T_RIGHT_BUTTON; 2720 else if (c == T_BACK_BUTTON) 2721 event->vse_key = VSE_T_BACK_BUTTON; 2722 break; 2723 } 2724 } 2725 2726 /* set bit = button depressed */ 2727 2728 if (c & a) 2729 event->vse_direction = VSE_KBTDOWN; 2730 else 2731 event->vse_direction = VSE_KBTUP; 2732 } 2733 2734 /* refresh last report */ 2735 2736 last_rep[unit] = current_rep[unit]; 2737 2738 } /* get last byte of report */ 2739 } /* pick up tablet input */ 2740 2741 } /* while input available.. */ 2742 2743 /* 2744 * do select wakeup 2745 */ 2746 if (do_wakeup) { 2747 selnotify(&qdrsel[unit], 0, 0); 2748 do_wakeup = 0; 2749 } 2750 } else { 2751 /* 2752 * if the graphic device is not turned on, this is console input 2753 */ 2754 if (qdpolling) 2755 return; 2756 2757 if (unit >= qd_cd.cd_ndevs || device_lookup(&qd_cd, unit) == NULL) 2758 return; /* no such device or address */ 2759 2760 tp = qd_tty[unit << 2]; 2761 2762 /* 2763 * Get a character from the keyboard. 2764 */ 2765 while (duart->statusA&RCV_RDY) { 2766 key = duart->dataA; 2767 key &= 0xFF; 2768 /* 2769 * Check for various keyboard errors 2770 */ 2771 if (key == LK_POWER_ERROR || key == LK_KDOWN_ERROR || 2772 key == LK_INPUT_ERROR || key == LK_OUTPUT_ERROR) { 2773 printf("qd%d: qdiint: Keyboard error, code = %x\n",qd,key); 2774 return; 2775 } 2776 2777 if (key < LK_LOWEST) 2778 return; 2779 2780 /* 2781 * See if its a state change key */ 2782 2783 switch (key) { 2784 2785 case LOCK: 2786 q_keyboard.lock ^= 0xffff; /* toggle */ 2787 if (q_keyboard.lock) 2788 led_control(qd, LK_LED_ENABLE, 2789 LK_LED_LOCK); 2790 else 2791 led_control(qd, LK_LED_DISABLE, 2792 LK_LED_LOCK); 2793 return; 2794 2795 case SHIFT: 2796 q_keyboard.shift ^= 0xFFFF; 2797 return; 2798 2799 case CNTRL: 2800 q_keyboard.cntrl ^= 0xFFFF; 2801 return; 2802 2803 case ALLUP: 2804 q_keyboard.cntrl = 0; 2805 q_keyboard.shift = 0; 2806 return; 2807 2808 case REPEAT: 2809 chr = q_keyboard.last; 2810 break; 2811 2812 /* 2813 * Test for cntrl characters. If set, see if the character 2814 * is elligible to become a control character. */ 2815 2816 default: 2817 2818 if (q_keyboard.cntrl) { 2819 chr = q_key[key]; 2820 if (chr >= ' ' && chr <= '~') 2821 chr &= 0x1F; 2822 else if (chr >= 0xA1 && chr <= 0xFE) 2823 chr &= 0x9F; 2824 } 2825 else if( q_keyboard.lock || q_keyboard.shift ) 2826 chr = q_shift_key[key]; 2827 else 2828 chr = q_key[key]; 2829 break; 2830 } 2831 2832 q_keyboard.last = chr; 2833 2834 /* 2835 * Check for special function keys */ 2836 2837 if (chr & 0x100) { 2838 char *string; 2839 string = q_special[chr & 0x7F]; 2840 while(*string) 2841 (*tp->t_linesw->l_rint)(*string++, tp); 2842 } 2843 else { 2844 #ifdef DDB 2845 /* Check for kernel debugger escape here */ 2846 int j; 2847 2848 j = kdbrint(chr&0177); 2849 2850 if (j == 1) /* Escape received, just return */ 2851 return; 2852 2853 if (j == 2) /* Second char wasn't 'D' */ 2854 (*tp->t_linesw->l_rint)(27, tp); 2855 #endif 2856 (*tp->t_linesw->l_rint)(chr&0177, tp); 2857 } 2858 } 2859 } 2860 } /* qdiint */ 2861 2862 /* 2863 * 2864 * Clear the QDSS screen 2865 * 2866 * >>> NOTE <<< 2867 * 2868 * This code requires that certain adder initialization be valid. To 2869 * assure that this requirement is satisfied, this routine should be 2870 * called only after calling the "setup_dragon()" function. 2871 * 2872 * Clear the bitmap a piece at a time. Since the fast scroll clear 2873 * only clears the current displayed portion of the bitmap put a 2874 * temporary value in the y limit register so we can access whole 2875 * bitmap 2876 * 2877 */ 2878 void 2879 clear_qd_screen(int unit) 2880 { 2881 volatile struct adder *adder; 2882 adder = (struct adder *) qdmap[unit].adder; 2883 2884 adder->x_limit = 1024; 2885 adder->y_limit = 2048 - CHAR_HEIGHT; 2886 adder->y_offset_pending = 0; 2887 #define WSV (void)wait_status(adder, VSYNC); (void)wait_status(adder, VSYNC) 2888 WSV; 2889 adder->y_scroll_constant = SCROLL_ERASE; 2890 WSV; 2891 adder->y_offset_pending = 864; 2892 WSV; 2893 adder->y_scroll_constant = SCROLL_ERASE; 2894 WSV; 2895 adder->y_offset_pending = 1728; 2896 WSV; 2897 adder->y_scroll_constant = SCROLL_ERASE; 2898 WSV; 2899 adder->y_offset_pending = 0; /* back to normal */ 2900 WSV; 2901 adder->x_limit = MAX_SCREEN_X; 2902 adder->y_limit = MAX_SCREEN_Y + FONT_HEIGHT; 2903 #undef WSV 2904 2905 } /* clear_qd_screen */ 2906 2907 /* 2908 * kernel console output to the glass tty 2909 */ 2910 void 2911 qdcnputc(dev_t dev, int chr) 2912 { 2913 2914 /* 2915 * if system is now physical, forget it (ie: crash DUMP) 2916 */ 2917 if ((mfpr(PR_MAPEN) & 1) == 0) 2918 return; 2919 2920 blitc(0, (u_char)(chr & 0xff)); 2921 if ((chr & 0177) == '\n') 2922 blitc(0, '\r'); 2923 2924 } /* qdputc */ 2925 2926 /* 2927 * load the mouse cursor's template RAM bitmap 2928 */ 2929 void 2930 ldcursor(int unit, short *bitmap) 2931 { 2932 volatile struct dga *dga; 2933 volatile short *temp; 2934 int i; 2935 int curs; 2936 2937 dga = (struct dga *) qdmap[unit].dga; 2938 temp = (short *) qdmap[unit].template; 2939 2940 if (dga->csr & CURS_ENB) { /* if the cursor is enabled.. */ 2941 curs = -1; /* ..note that.. */ 2942 dga->csr &= ~CURS_ENB; /* ..and shut it off */ 2943 } else 2944 curs = 0; 2945 2946 dga->csr &= ~CURS_ENB; /* shut off the cursor */ 2947 2948 temp += (8 * 1024) - 32; /* cursor is 32 WORDS from the end */ 2949 /* ..of the 8k WORD template space */ 2950 for (i = 0; i < 32; ++i) 2951 *temp++ = *bitmap++; 2952 2953 if (curs) { /* if cursor was enabled.. */ 2954 dga->csr |= CURS_ENB; /* ..turn it back on */ 2955 } 2956 2957 } /* ldcursor */ 2958 2959 /* 2960 * Put the console font in the QDSS off-screen memory 2961 */ 2962 void 2963 ldfont(int unit) 2964 { 2965 volatile struct adder *adder; 2966 2967 int i, j, k, max_chars_line; 2968 short packed; 2969 2970 adder = (struct adder *) qdmap[unit].adder; 2971 2972 /* 2973 * setup VIPER operand control registers 2974 */ 2975 write_ID(adder, MASK_1, 0xFFFF); 2976 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 255); 2977 write_ID(adder, VIPER_Z_LOAD | BACKGROUND_COLOR_Z, 0); 2978 2979 write_ID(adder, SRC1_OCR_B, 2980 EXT_NONE | INT_NONE | ID | BAR_SHIFT_DELAY); 2981 write_ID(adder, SRC2_OCR_B, 2982 EXT_NONE | INT_NONE | ID | BAR_SHIFT_DELAY); 2983 write_ID(adder, DST_OCR_B, 2984 EXT_SOURCE | INT_NONE | NO_ID | NO_BAR_SHIFT_DELAY); 2985 2986 adder->rasterop_mode = DST_WRITE_ENABLE | DST_INDEX_ENABLE | NORMAL; 2987 2988 /* 2989 * load destination data 2990 */ 2991 (void)wait_status(adder, RASTEROP_COMPLETE); 2992 2993 adder->destination_x = FONT_X; 2994 adder->destination_y = FONT_Y; 2995 #if FONT_WIDTH > MAX_SCREEN_X 2996 adder->fast_dest_dx = MAX_SCREEN_X; 2997 #else 2998 adder->fast_dest_dx = FONT_WIDTH; 2999 #endif 3000 adder->slow_dest_dy = CHAR_HEIGHT; 3001 3002 /* 3003 * setup for processor to bitmap xfer */ 3004 3005 write_ID(adder, CS_UPDATE_MASK, 0x0001); 3006 adder->cmd = PBT | OCRB | 2 | DTE | 2; 3007 3008 /* 3009 * Figure out how many characters can be stored on one "line" of 3010 * offscreen memory. 3011 */ 3012 max_chars_line = MAX_SCREEN_X/(CHAR_WIDTH*2); 3013 if ((CHARS/2 + CHARS%2) < max_chars_line) 3014 max_chars_line = CHARS/2 + CHARS%2; 3015 3016 /* 3017 * iteratively do the processor to bitmap xfer */ 3018 3019 for (i = 0; i < ROWS; ++i) { 3020 3021 /* PTOB a scan line */ 3022 3023 for (j = 0, k = i; j < max_chars_line; ++j) { 3024 /* PTOB one scan of a char cell */ 3025 3026 packed = q_font[k]; 3027 k += ROWS; 3028 packed |= ((short)q_font[k] << 8); 3029 k += ROWS; 3030 3031 (void)wait_status(adder, TX_READY); 3032 adder->id_data = packed; 3033 } 3034 } 3035 3036 /* 3037 * (XXX XXX XXX - should remove) 3038 * 3039 * Copy the second row of characters. Subtract the first 3040 * row from the total number. Divide this quantity by 2 3041 * because 2 chars are stored in a short in the PTOB loop 3042 * below. Figure out how many characters can be stored on 3043 * one "line" of offscreen memory 3044 */ 3045 3046 max_chars_line = MAX_SCREEN_X/(CHAR_WIDTH*2); 3047 if ((CHARS/2 + CHARS%2) < max_chars_line) 3048 return; 3049 max_chars_line = (CHARS/2 + CHARS%2) - max_chars_line; /* 95 - 64 */ 3050 /* Paranoia check to see if 3rd row may be needed */ 3051 if (max_chars_line > (MAX_SCREEN_X/(CHAR_WIDTH*2))) 3052 max_chars_line = MAX_SCREEN_X/(CHAR_WIDTH*2); 3053 3054 adder->destination_x = FONT_X; 3055 adder->destination_y = FONT_Y - CHAR_HEIGHT; 3056 adder->fast_dest_dx = max_chars_line * CHAR_WIDTH * 2; 3057 adder->slow_dest_dy = CHAR_HEIGHT; 3058 3059 /* 3060 * setup for processor to bitmap xfer 3061 */ 3062 write_ID(adder, CS_UPDATE_MASK, 0x0001); 3063 adder->cmd = PBT | OCRB | 2 | DTE | 2; 3064 3065 /* 3066 * iteratively do the processor to bitmap xfer 3067 */ 3068 for (i = 0; i < ROWS; ++i) { 3069 /* 3070 * PTOB a scan line 3071 */ 3072 for (j = 0, k = i; j < max_chars_line; ++j) { 3073 /* 3074 * PTOB one scan of a char cell 3075 */ 3076 packed = q_font[k + FONT_OFFSET]; 3077 k += ROWS; 3078 packed |= ((short)q_font[k + FONT_OFFSET] << 8); 3079 k += ROWS; 3080 (void)wait_status(adder, TX_READY); 3081 adder->id_data = packed; 3082 } 3083 } 3084 3085 } /* ldfont */ 3086 3087 3088 /* 3089 * Disable or enable polling. This is used when entering or leaving the 3090 * kernel debugger. 3091 */ 3092 void 3093 qdcnpollc(dev_t dev, int onoff) 3094 { 3095 qdpolling = onoff; 3096 } 3097 3098 3099 /* 3100 * Get a character from the LK201 (polled) 3101 */ 3102 int 3103 qdcngetc(dev_t dev) 3104 { 3105 short key; 3106 char chr; 3107 volatile struct duart *duart; 3108 3109 duart = (struct duart *) qdmap[0].duart; 3110 3111 /* 3112 * Get a character from the keyboard. 3113 */ 3114 LOOP: 3115 while (!(duart->statusA&RCV_RDY)) 3116 ; 3117 3118 key = duart->dataA; 3119 key &= 0xFF; 3120 3121 /* 3122 * Check for various keyboard errors */ 3123 3124 if (key == LK_POWER_ERROR || key == LK_KDOWN_ERROR || 3125 key == LK_INPUT_ERROR || key == LK_OUTPUT_ERROR) { 3126 printf("Keyboard error, code = %x\n", key); 3127 return(0); 3128 } 3129 3130 if (key < LK_LOWEST) 3131 return(0); 3132 3133 /* 3134 * See if its a state change key 3135 */ 3136 switch (key) { 3137 3138 case LOCK: 3139 q_keyboard.lock ^= 0xffff; /* toggle */ 3140 if (q_keyboard.lock) 3141 led_control(0, LK_LED_ENABLE, LK_LED_LOCK); 3142 else 3143 led_control(0, LK_LED_DISABLE, LK_LED_LOCK); 3144 goto LOOP; 3145 3146 case SHIFT: 3147 q_keyboard.shift ^= 0xFFFF; 3148 goto LOOP; 3149 3150 case CNTRL: 3151 q_keyboard.cntrl ^= 0xFFFF; 3152 goto LOOP; 3153 3154 case ALLUP: 3155 q_keyboard.cntrl = 0; 3156 q_keyboard.shift = 0; 3157 goto LOOP; 3158 3159 case REPEAT: 3160 chr = q_keyboard.last; 3161 break; 3162 3163 /* 3164 * Test for cntrl characters. If set, see if the character 3165 * is elligible to become a control character. 3166 */ 3167 default: 3168 3169 if (q_keyboard.cntrl) { 3170 chr = q_key[key]; 3171 if (chr >= ' ' && chr <= '~') 3172 chr &= 0x1F; 3173 } 3174 else if ( q_keyboard.lock || q_keyboard.shift ) 3175 chr = q_shift_key[key]; 3176 else 3177 chr = q_key[key]; 3178 break; 3179 } 3180 3181 if (chr < ' ' && chr > '~') /* if input is non-displayable */ 3182 return(0); /* ..then pitch it! */ 3183 3184 q_keyboard.last = chr; 3185 3186 /* 3187 * Check for special function keys */ 3188 3189 if (chr & 0x80) /* pitch the function keys */ 3190 return(0); 3191 else 3192 return(chr); 3193 3194 } /* qdgetc */ 3195 3196 /* 3197 * led_control()... twiddle LK-201 LED's 3198 */ 3199 void 3200 led_control(int unit, int cmd, int led_mask) 3201 { 3202 int i; 3203 volatile struct duart *duart; 3204 3205 duart = (struct duart *)qdmap[unit].duart; 3206 3207 for (i = 1000; i > 0; --i) { 3208 if (duart->statusA&XMT_RDY) { 3209 duart->dataA = cmd; 3210 break; 3211 } 3212 } 3213 for (i = 1000; i > 0; --i) { 3214 if (duart->statusA&XMT_RDY) { 3215 duart->dataA = led_mask; 3216 break; 3217 } 3218 } 3219 return; 3220 3221 } /* led_control */ 3222 3223 /* 3224 * scroll_up()... move the screen up one character height 3225 */ 3226 void 3227 scroll_up(volatile struct adder *adder) 3228 { 3229 /* 3230 * setup VIPER operand control registers 3231 */ 3232 (void)wait_status(adder, ADDRESS_COMPLETE); 3233 write_ID(adder, CS_UPDATE_MASK, 0x00FF); /* select all planes */ 3234 write_ID(adder, MASK_1, 0xFFFF); 3235 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 255); 3236 write_ID(adder, VIPER_Z_LOAD | BACKGROUND_COLOR_Z, 0); 3237 write_ID(adder, SRC1_OCR_B, 3238 EXT_NONE | INT_SOURCE | ID | BAR_SHIFT_DELAY); 3239 write_ID(adder, DST_OCR_B, 3240 EXT_NONE | INT_NONE | NO_ID | NO_BAR_SHIFT_DELAY); 3241 /* 3242 * load DESTINATION origin and vectors 3243 */ 3244 adder->fast_dest_dy = 0; 3245 adder->slow_dest_dx = 0; 3246 adder->error_1 = 0; 3247 adder->error_2 = 0; 3248 adder->rasterop_mode = DST_WRITE_ENABLE | NORMAL; 3249 adder->destination_x = 0; 3250 adder->fast_dest_dx = 1024; 3251 adder->destination_y = 0; 3252 adder->slow_dest_dy = 864 - CHAR_HEIGHT; 3253 /* 3254 * load SOURCE origin and vectors 3255 */ 3256 adder->source_1_x = 0; 3257 adder->source_1_dx = 1024; 3258 adder->source_1_y = 0 + CHAR_HEIGHT; 3259 adder->source_1_dy = 864 - CHAR_HEIGHT; 3260 write_ID(adder, LU_FUNCTION_R1, FULL_SRC_RESOLUTION | LF_SOURCE); 3261 adder->cmd = RASTEROP | OCRB | 0 | S1E | DTE; 3262 /* 3263 * do a rectangle clear of last screen line 3264 */ 3265 write_ID(adder, MASK_1, 0xffff); 3266 write_ID(adder, SOURCE, 0xffff); 3267 write_ID(adder,DST_OCR_B, 3268 (EXT_NONE | INT_NONE | NO_ID | NO_BAR_SHIFT_DELAY)); 3269 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 0); 3270 adder->error_1 = 0; 3271 adder->error_2 = 0; 3272 adder->slow_dest_dx = 0; /* set up the width of */ 3273 adder->slow_dest_dy = CHAR_HEIGHT; /* rectangle */ 3274 adder->rasterop_mode = (NORMAL | DST_WRITE_ENABLE) ; 3275 (void)wait_status(adder, RASTEROP_COMPLETE); 3276 adder->destination_x = 0; 3277 adder->destination_y = 864 - CHAR_HEIGHT; 3278 adder->fast_dest_dx = 1024; /* set up the height */ 3279 adder->fast_dest_dy = 0; /* of rectangle */ 3280 write_ID(adder, LU_FUNCTION_R2, (FULL_SRC_RESOLUTION | LF_SOURCE)); 3281 adder->cmd = (RASTEROP | OCRB | LF_R2 | DTE ) ; 3282 3283 } /* scroll_up */ 3284 3285 /* 3286 * init shared memory pointers and structures 3287 */ 3288 void 3289 init_shared(int unit) 3290 { 3291 volatile struct dga *dga; 3292 3293 dga = (struct dga *) qdmap[unit].dga; 3294 3295 /* 3296 * initialize the event queue pointers and header */ 3297 3298 eq_header[unit] = (struct qdinput *) 3299 ((((int)event_shared & ~(0x01FF)) + 512) 3300 + (EVENT_BUFSIZE * unit)); 3301 eq_header[unit]->curs_pos.x = 0; 3302 eq_header[unit]->curs_pos.y = 0; 3303 dga->x_cursor = TRANX(eq_header[unit]->curs_pos.x); 3304 dga->y_cursor = TRANY(eq_header[unit]->curs_pos.y); 3305 eq_header[unit]->curs_box.left = 0; 3306 eq_header[unit]->curs_box.right = 0; 3307 eq_header[unit]->curs_box.top = 0; 3308 eq_header[unit]->curs_box.bottom = 0; 3309 /* 3310 * assign a pointer to the DMA I/O buffer for this QDSS. 3311 */ 3312 DMAheader[unit] = (struct DMAreq_header *) 3313 (((int)(&DMA_shared[0] + 512) & ~0x1FF) 3314 + (DMAbuf_size * unit)); 3315 DMAheader[unit]->DMAreq = (struct DMAreq *) ((int)DMAheader[unit] 3316 + sizeof(struct DMAreq_header)); 3317 DMAheader[unit]->QBAreg = 0; 3318 DMAheader[unit]->status = 0; 3319 DMAheader[unit]->shared_size = DMAbuf_size; 3320 DMAheader[unit]->used = 0; 3321 DMAheader[unit]->size = 10; /* default = 10 requests */ 3322 DMAheader[unit]->oldest = 0; 3323 DMAheader[unit]->newest = 0; 3324 /* 3325 * assign a pointer to the scroll structure for this QDSS. 3326 */ 3327 scroll[unit] = (struct scroll *) 3328 (((int)(&scroll_shared[0] + 512) & ~0x1FF) 3329 + (sizeof(struct scroll) * unit)); 3330 scroll[unit]->status = 0; 3331 scroll[unit]->viper_constant = 0; 3332 scroll[unit]->y_scroll_constant = 0; 3333 scroll[unit]->y_offset = 0; 3334 scroll[unit]->x_index_pending = 0; 3335 scroll[unit]->y_index_pending = 0; 3336 /* 3337 * assign a pointer to the color map write buffer for this QDSS 3338 */ 3339 color_buf[unit] = (struct color_buf *) 3340 (((int)(&color_shared[0] + 512) & ~0x1FF) 3341 + (COLOR_BUFSIZ * unit)); 3342 color_buf[unit]->status = 0; 3343 color_buf[unit]->count = 0; 3344 3345 } /* init_shared */ 3346 3347 /* 3348 * init the ADDER, VIPER, bitmaps, & color map 3349 */ 3350 void 3351 setup_dragon(int unit) 3352 { 3353 3354 volatile struct adder *adder; 3355 volatile struct dga *dga; 3356 volatile short *memcsr; 3357 int i; 3358 short top; /* clipping/scrolling boundaries */ 3359 short bottom; 3360 short right; 3361 short left; 3362 volatile short *red; /* color map pointers */ 3363 volatile short *green; 3364 volatile short *blue; 3365 3366 /* 3367 * init for setup 3368 */ 3369 adder = (struct adder *) qdmap[unit].adder; 3370 dga = (struct dga *) qdmap[unit].dga; 3371 memcsr = (short *) qdmap[unit].memcsr; 3372 dga->csr &= ~(DMA_IE | 0x700); /* halt DMA and kill the intrpts */ 3373 *memcsr = SYNC_ON; /* blank screen and turn off LED's */ 3374 adder->command = CANCEL; 3375 /* 3376 * set monitor timing 3377 */ 3378 adder->x_scan_count_0 = 0x2800; 3379 adder->x_scan_count_1 = 0x1020; 3380 adder->x_scan_count_2 = 0x003A; 3381 adder->x_scan_count_3 = 0x38F0; 3382 adder->x_scan_count_4 = 0x6128; 3383 adder->x_scan_count_5 = 0x093A; 3384 adder->x_scan_count_6 = 0x313C; 3385 adder->sync_phase_adj = 0x0100; 3386 adder->x_scan_conf = 0x00C8; 3387 /* 3388 * got a bug in secound pass ADDER! lets take care of it 3389 * 3390 * normally, just use the code in the following bug fix code, but to 3391 * make repeated demos look pretty, load the registers as if there was 3392 * no bug and then test to see if we are getting sync 3393 */ 3394 adder->y_scan_count_0 = 0x135F; 3395 adder->y_scan_count_1 = 0x3363; 3396 adder->y_scan_count_2 = 0x2366; 3397 adder->y_scan_count_3 = 0x0388; 3398 /* 3399 * if no sync, do the bug fix code 3400 */ 3401 if (wait_status(adder, VSYNC) == BAD) { 3402 /* first load all Y scan registers with very short frame and 3403 * wait for scroll service. This guarantees at least one SYNC 3404 * to fix the pass 2 Adder initialization bug (synchronizes 3405 * XCINCH with DMSEEDH) 3406 */ 3407 adder->y_scan_count_0 = 0x01; 3408 adder->y_scan_count_1 = 0x01; 3409 adder->y_scan_count_2 = 0x01; 3410 adder->y_scan_count_3 = 0x01; 3411 /* 3412 * delay at least 1 full frame time 3413 */ 3414 (void)wait_status(adder, VSYNC); 3415 (void)wait_status(adder, VSYNC); 3416 /* 3417 * now load the REAL sync values (in reverse order just to 3418 * be safe. 3419 */ 3420 adder->y_scan_count_3 = 0x0388; 3421 adder->y_scan_count_2 = 0x2366; 3422 adder->y_scan_count_1 = 0x3363; 3423 adder->y_scan_count_0 = 0x135F; 3424 } 3425 *memcsr = SYNC_ON | UNBLANK; /* turn off leds and turn on video */ 3426 /* 3427 * zero the index registers 3428 */ 3429 adder->x_index_pending = 0; 3430 adder->y_index_pending = 0; 3431 adder->x_index_new = 0; 3432 adder->y_index_new = 0; 3433 adder->x_index_old = 0; 3434 adder->y_index_old = 0; 3435 adder->pause = 0; 3436 /* 3437 * set rasterop mode to normal pen down 3438 */ 3439 adder->rasterop_mode = DST_WRITE_ENABLE | DST_INDEX_ENABLE | NORMAL; 3440 /* 3441 * set the rasterop registers to a default values 3442 */ 3443 adder->source_1_dx = 1; 3444 adder->source_1_dy = 1; 3445 adder->source_1_x = 0; 3446 adder->source_1_y = 0; 3447 adder->destination_x = 0; 3448 adder->destination_y = 0; 3449 adder->fast_dest_dx = 1; 3450 adder->fast_dest_dy = 0; 3451 adder->slow_dest_dx = 0; 3452 adder->slow_dest_dy = 1; 3453 adder->error_1 = 0; 3454 adder->error_2 = 0; 3455 /* 3456 * scale factor = UNITY 3457 */ 3458 adder->fast_scale = UNITY; 3459 adder->slow_scale = UNITY; 3460 /* 3461 * set the source 2 parameters 3462 */ 3463 adder->source_2_x = 0; 3464 adder->source_2_y = 0; 3465 adder->source_2_size = 0x0022; 3466 /* 3467 * initialize plane addresses for eight vipers 3468 */ 3469 write_ID(adder, CS_UPDATE_MASK, 0x0001); 3470 write_ID(adder, PLANE_ADDRESS, 0x0000); 3471 write_ID(adder, CS_UPDATE_MASK, 0x0002); 3472 write_ID(adder, PLANE_ADDRESS, 0x0001); 3473 write_ID(adder, CS_UPDATE_MASK, 0x0004); 3474 write_ID(adder, PLANE_ADDRESS, 0x0002); 3475 write_ID(adder, CS_UPDATE_MASK, 0x0008); 3476 write_ID(adder, PLANE_ADDRESS, 0x0003); 3477 write_ID(adder, CS_UPDATE_MASK, 0x0010); 3478 write_ID(adder, PLANE_ADDRESS, 0x0004); 3479 write_ID(adder, CS_UPDATE_MASK, 0x0020); 3480 write_ID(adder, PLANE_ADDRESS, 0x0005); 3481 write_ID(adder, CS_UPDATE_MASK, 0x0040); 3482 write_ID(adder, PLANE_ADDRESS, 0x0006); 3483 write_ID(adder, CS_UPDATE_MASK, 0x0080); 3484 write_ID(adder, PLANE_ADDRESS, 0x0007); 3485 /* 3486 * initialize the external registers. 3487 */ 3488 write_ID(adder, CS_UPDATE_MASK, 0x00FF); 3489 write_ID(adder, CS_SCROLL_MASK, 0x00FF); 3490 /* 3491 * initialize resolution mode 3492 */ 3493 write_ID(adder, MEMORY_BUS_WIDTH, 0x000C); /* bus width = 16 */ 3494 write_ID(adder, RESOLUTION_MODE, 0x0000); /* one bit/pixel */ 3495 /* 3496 * initialize viper registers 3497 */ 3498 write_ID(adder, SCROLL_CONSTANT, SCROLL_ENABLE|VIPER_LEFT|VIPER_UP); 3499 write_ID(adder, SCROLL_FILL, 0x0000); 3500 /* 3501 * set clipping and scrolling limits to full screen 3502 */ 3503 for (i = 1000, adder->status = 0; 3504 i > 0 && !(adder->status&ADDRESS_COMPLETE); --i) 3505 ; 3506 if (i == 0) 3507 printf("qd%d: setup_dragon: timeout on ADDRESS_COMPLETE\n",unit); 3508 top = 0; 3509 bottom = 2048; 3510 left = 0; 3511 right = 1024; 3512 adder->x_clip_min = left; 3513 adder->x_clip_max = right; 3514 adder->y_clip_min = top; 3515 adder->y_clip_max = bottom; 3516 adder->scroll_x_min = left; 3517 adder->scroll_x_max = right; 3518 adder->scroll_y_min = top; 3519 adder->scroll_y_max = bottom; 3520 (void)wait_status(adder, VSYNC); /* wait at LEAST 1 full frame */ 3521 (void)wait_status(adder, VSYNC); 3522 adder->x_index_pending = left; 3523 adder->y_index_pending = top; 3524 adder->x_index_new = left; 3525 adder->y_index_new = top; 3526 adder->x_index_old = left; 3527 adder->y_index_old = top; 3528 3529 for (i = 1000, adder->status = 0; i > 0 && 3530 !(adder->status&ADDRESS_COMPLETE) ; --i) 3531 ; 3532 if (i == 0) 3533 printf("qd%d: setup_dragon: timeout on ADDRESS_COMPLETE\n",unit); 3534 3535 write_ID(adder, LEFT_SCROLL_MASK, 0x0000); 3536 write_ID(adder, RIGHT_SCROLL_MASK, 0x0000); 3537 /* 3538 * set source and the mask register to all ones (ie: white) o 3539 */ 3540 write_ID(adder, SOURCE, 0xFFFF); 3541 write_ID(adder, MASK_1, 0xFFFF); 3542 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 255); 3543 write_ID(adder, VIPER_Z_LOAD | BACKGROUND_COLOR_Z, 0); 3544 /* 3545 * initialize Operand Control Register banks for fill command 3546 */ 3547 write_ID(adder, SRC1_OCR_A, EXT_NONE | INT_M1_M2 | NO_ID | WAIT); 3548 write_ID(adder, SRC2_OCR_A, EXT_NONE | INT_SOURCE | NO_ID | NO_WAIT); 3549 write_ID(adder, DST_OCR_A, EXT_NONE | INT_NONE | NO_ID | NO_WAIT); 3550 write_ID(adder, SRC1_OCR_B, EXT_NONE | INT_SOURCE | NO_ID | WAIT); 3551 write_ID(adder, SRC2_OCR_B, EXT_NONE | INT_M1_M2 | NO_ID | NO_WAIT); 3552 write_ID(adder, DST_OCR_B, EXT_NONE | INT_NONE | NO_ID | NO_WAIT); 3553 /* 3554 * init Logic Unit Function registers, (these are just common values, 3555 * and may be changed as required). 3556 */ 3557 write_ID(adder, LU_FUNCTION_R1, FULL_SRC_RESOLUTION | LF_SOURCE); 3558 write_ID(adder, LU_FUNCTION_R2, FULL_SRC_RESOLUTION | LF_SOURCE | 3559 INV_M1_M2); 3560 write_ID(adder, LU_FUNCTION_R3, FULL_SRC_RESOLUTION | LF_D_OR_S); 3561 write_ID(adder, LU_FUNCTION_R4, FULL_SRC_RESOLUTION | LF_D_XOR_S); 3562 /* 3563 * load the color map for black & white 3564 */ 3565 for (i = 0, adder->status = 0; i < 10000 && !(adder->status&VSYNC); ++i) 3566 ; 3567 3568 if (i == 0) 3569 printf("qd%d: setup_dragon: timeout on VSYNC\n", unit); 3570 3571 red = (short *) qdmap[unit].red; 3572 green = (short *) qdmap[unit].green; 3573 blue = (short *) qdmap[unit].blue; 3574 3575 *red++ = 0x00; /* black */ 3576 *green++ = 0x00; 3577 *blue++ = 0x00; 3578 3579 *red-- = 0xFF; /* white */ 3580 *green-- = 0xFF; 3581 *blue-- = 0xFF; 3582 3583 /* 3584 * set color map for mouse cursor 3585 */ 3586 3587 red += 254; 3588 green += 254; 3589 blue += 254; 3590 3591 *red++ = 0x00; /* black */ 3592 *green++ = 0x00; 3593 *blue++ = 0x00; 3594 3595 *red = 0xFF; /* white */ 3596 *green = 0xFF; 3597 *blue = 0xFF; 3598 3599 } /* setup_dragon */ 3600 3601 /* 3602 * Init the DUART and set defaults in input 3603 */ 3604 void 3605 setup_input(int unit) 3606 { 3607 volatile struct duart *duart; /* DUART register structure pointer */ 3608 int i, bits; 3609 char id_byte; 3610 3611 duart = (struct duart *) qdmap[unit].duart; 3612 duart->imask = 0; 3613 3614 /* 3615 * setup the DUART for kbd & pointing device 3616 */ 3617 duart->cmdA = RESET_M; /* reset mode reg ptr for kbd */ 3618 duart->modeA = 0x13; /* 8 bits, no parity, rcv IE, */ 3619 /* no RTS control,char error mode */ 3620 duart->modeA = 0x07; /* 1 stop bit,CTS does not IE XMT */ 3621 /* no RTS control,no echo or loop */ 3622 duart->cmdB = RESET_M; /* reset mode reg pntr for host */ 3623 duart->modeB = 0x07; /* 8 bits, odd parity, rcv IE.. */ 3624 /* ..no RTS cntrl, char error mode */ 3625 duart->modeB = 0x07; /* 1 stop bit,CTS does not IE XMT */ 3626 /* no RTS control,no echo or loop */ 3627 duart->auxctl = 0x00; /* baud rate set 1 */ 3628 duart->clkselA = 0x99; /* 4800 baud for kbd */ 3629 duart->clkselB = 0x99; /* 4800 baud for mouse */ 3630 3631 /* reset everything for keyboard */ 3632 3633 for (bits = RESET_M; bits < START_BREAK; bits += 0x10) 3634 duart->cmdA = bits; 3635 3636 /* reset everything for host */ 3637 3638 for (bits = RESET_M; bits < START_BREAK; bits += 0x10) 3639 duart->cmdB = bits; 3640 3641 duart->cmdA = EN_RCV | EN_XMT; /* enbl xmt & rcv for kbd */ 3642 duart->cmdB = EN_RCV | EN_XMT; /* enbl xmt & rcv for pointer device */ 3643 3644 /* 3645 * init keyboard defaults (DUART channel A) 3646 */ 3647 for (i = 500; i > 0; --i) { 3648 if (duart->statusA&XMT_RDY) { 3649 duart->dataA = LK_DEFAULTS; 3650 break; 3651 } 3652 } 3653 3654 for (i = 100000; i > 0; --i) { 3655 if (duart->statusA&RCV_RDY) { 3656 break; 3657 } 3658 } 3659 3660 if (duart->dataA) /* flush the ACK */ 3661 ; 3662 3663 /* 3664 * identify the pointing device 3665 */ 3666 for (i = 500; i > 0; --i) { 3667 if (duart->statusB&XMT_RDY) { 3668 duart->dataB = SELF_TEST; 3669 break; 3670 } 3671 } 3672 3673 /* 3674 * wait for 1st byte of self test report */ 3675 3676 for (i = 100000; i > 0; --i) { 3677 if (duart->statusB&RCV_RDY) { 3678 break; 3679 } 3680 } 3681 3682 if (i == 0) { 3683 printf("qd[%d]: setup_input: timeout on 1st byte of self test\n" 3684 ,unit); 3685 goto OUT; 3686 } 3687 3688 if (duart->dataB) 3689 ; 3690 3691 /* 3692 * wait for ID byte of self test report 3693 */ 3694 for (i = 100000; i > 0; --i) { 3695 if (duart->statusB&RCV_RDY) { 3696 break; 3697 } 3698 } 3699 3700 if (i == 0) { 3701 printf("qd[%d]: setup_input: timeout on 2nd byte of self test\n", unit); 3702 goto OUT; 3703 } 3704 3705 id_byte = duart->dataB; 3706 3707 /* 3708 * wait for other bytes to come in 3709 */ 3710 for (i = 100000; i > 0; --i) { 3711 if (duart->statusB & RCV_RDY) { 3712 if (duart->dataB) 3713 ; 3714 break; 3715 } 3716 } 3717 if (i == 0) { 3718 printf("qd[%d]: setup_input: timeout on 3rd byte of self test\n", unit); 3719 goto OUT; 3720 } 3721 for (i = 100000; i > 0; --i) { 3722 if (duart->statusB&RCV_RDY) { 3723 if (duart->dataB) 3724 ; 3725 break; 3726 } 3727 } 3728 if (i == 0) { 3729 printf("qd[%d]: setup_input: timeout on 4th byte of self test\n", unit); 3730 goto OUT; 3731 } 3732 /* 3733 * flag pointing device type and set defaults 3734 */ 3735 for (i=100000; i>0; --i) 3736 ; /*XXX*/ 3737 3738 if ((id_byte & 0x0F) != TABLET_ID) { 3739 qdflags[unit].pntr_id = MOUSE_ID; 3740 3741 for (i = 500; i > 0; --i) { 3742 if (duart->statusB&XMT_RDY) { 3743 duart->dataB = INC_STREAM_MODE; 3744 break; 3745 } 3746 } 3747 } 3748 else { 3749 qdflags[unit].pntr_id = TABLET_ID; 3750 3751 for (i = 500; i > 0; --i) { 3752 if (duart->statusB&XMT_RDY) { 3753 duart->dataB = T_STREAM; 3754 break; 3755 } 3756 } 3757 } 3758 OUT: 3759 duart->imask = qdflags[unit].duart_imask; 3760 3761 } /* setup_input */ 3762 3763 /* 3764 * delay for at least one display frame time 3765 * 3766 * return: BAD means that we timed out without ever seeing the 3767 * vertical sync status bit 3768 * GOOD otherwise 3769 */ 3770 int 3771 wait_status(volatile struct adder *adder, int mask) 3772 { 3773 int i; 3774 3775 for (i = 10000, adder->status = 0 ; i > 0 && 3776 !(adder->status&mask) ; --i) 3777 ; 3778 3779 if (i == 0) { 3780 printf("wait_status: timeout polling for 0x%x in adder->status\n", mask); 3781 return(BAD); 3782 } 3783 3784 return(GOOD); 3785 3786 } /* wait_status */ 3787 3788 /* 3789 * write out onto the ID bus 3790 */ 3791 void 3792 write_ID(volatile struct adder *adder, short adrs, short data) 3793 { 3794 int i; 3795 3796 for (i = 100000, adder->status = 0 ; 3797 i > 0 && !(adder->status&ADDRESS_COMPLETE) ; --i) 3798 ; 3799 3800 if (i == 0) 3801 goto ERR; 3802 3803 for (i = 100000, adder->status = 0 ; 3804 i > 0 && !(adder->status&TX_READY) ; --i) 3805 ; 3806 3807 if (i > 0) { 3808 adder->id_data = data; 3809 adder->command = ID_LOAD | adrs; 3810 return ; 3811 } 3812 3813 ERR: 3814 printf("write_ID: timeout trying to write to VIPER\n"); 3815 return ; 3816 3817 } /* write_ID */ 3818
Indexes created Tue Sep 30 10:09:55 GMT 2025