qd.c revision 1.22
1 /* $NetBSD: qd.c,v 1.22 2001/05/02 10:32:11 scw 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)qd.c 7.1 (Berkeley) 6/28/91 36 */ 37 38 /************************************************************************ 39 * * 40 * Copyright (c) 1985-1988 by * 41 * Digital Equipment Corporation, Maynard, MA * 42 * All rights reserved. * 43 * * 44 * This software is furnished under a license and may be used and * 45 * copied only in accordance with the terms of such license and * 46 * with the inclusion of the above copyright notice. This * 47 * software or any other copies thereof may not be provided or * 48 * otherwise made available to any other person. No title to and * 49 * ownership of the software is hereby transferred. * 50 * * 51 * The information in this software is subject to change without * 52 * notice and should not be construed as a commitment by Digital * 53 * Equipment Corporation. * 54 * * 55 * Digital assumes no responsibility for the use or reliability * 56 * of its software on equipment which is not supplied by Digital. * 57 * * 58 *************************************************************************/ 59 60 /* 61 * qd.c - QDSS display driver for VAXSTATION-II GPX workstation 62 */ 63 64 #include "opt_ddb.h" 65 66 #include "qd.h" 67 68 #include <sys/param.h> 69 #include <sys/systm.h> 70 #include <sys/conf.h> 71 #include <sys/tty.h> 72 #include <sys/kernel.h> 73 #include <sys/device.h> 74 #include <sys/poll.h> 75 #include <sys/buf.h> 76 77 #include <uvm/uvm_extern.h> 78 79 #include <dev/cons.h> 80 81 #include <machine/bus.h> 82 #include <machine/scb.h> 83 84 #ifdef __vax__ 85 #include <machine/sid.h> 86 #include <machine/cpu.h> 87 #include <machine/pte.h> 88 #endif 89 90 #include <dev/qbus/ubavar.h> 91 92 #include <dev/qbus/qduser.h> 93 #include <dev/qbus/qdreg.h> 94 #include <dev/qbus/qdioctl.h> 95 96 #include "ioconf.h" 97 98 /* 99 * QDSS driver status flags for tracking operational state 100 */ 101 struct qdflags { 102 u_int inuse; /* which minor dev's are in use now */ 103 u_int config; /* I/O page register content */ 104 u_int mapped; /* user mapping status word */ 105 u_int kernel_loop; /* if kernel console is redirected */ 106 u_int user_dma; /* DMA from user space in progress */ 107 u_short pntr_id; /* type code of pointing device */ 108 u_short duart_imask; /* shadowing for duart intrpt mask reg */ 109 u_short adder_ie; /* shadowing for adder intrpt enbl reg */ 110 u_short curs_acc; /* cursor acceleration factor */ 111 u_short curs_thr; /* cursor acceleration threshold level */ 112 u_short tab_res; /* tablet resolution factor */ 113 u_short selmask; /* mask for active qd select entries */ 114 }; 115 116 /* 117 * Softc struct to keep track of all states in this driver. 118 */ 119 struct qd_softc { 120 struct device sc_dev; 121 bus_space_tag_t sc_iot; 122 bus_space_handle_t sc_ioh; 123 bus_dma_tag_t sc_dmat; 124 }; 125 126 /* 127 * bit definitions for 'inuse' entry 128 */ 129 #define CONS_DEV 0x01 130 #define GRAPHIC_DEV 0x04 131 132 /* 133 * bit definitions for 'mapped' member of flag structure 134 */ 135 #define MAPDEV 0x01 /* hardware is mapped */ 136 #define MAPDMA 0x02 /* DMA buffer mapped */ 137 #define MAPEQ 0x04 /* event queue buffer mapped */ 138 #define MAPSCR 0x08 /* scroll param area mapped */ 139 #define MAPCOLOR 0x10 /* color map writing buffer mapped */ 140 141 /* 142 * bit definitions for 'selmask' member of qdflag structure 143 */ 144 #define SEL_READ 0x01 /* read select is active */ 145 #define SEL_WRITE 0x02 /* write select is active */ 146 147 /* 148 * constants used in shared memory operations 149 */ 150 #define EVENT_BUFSIZE 1024 /* # of bytes per device's event buffer */ 151 #define MAXEVENTS ( (EVENT_BUFSIZE - sizeof(struct qdinput)) \ 152 / sizeof(struct _vs_event) ) 153 #define DMA_BUFSIZ (1024 * 10) 154 #define COLOR_BUFSIZ ((sizeof(struct color_buf) + 512) & ~0x01FF) 155 156 /* 157 * reference to an array of "uba_device" structures built by the auto 158 * configuration program. The uba_device structure decribes the device 159 * sufficiently for the driver to talk to it. The auto configuration code 160 * fills in the uba_device structures (located in ioconf.c) from user 161 * maintained info. 162 */ 163 struct uba_device *qdinfo[NQD]; /* array of pntrs to each QDSS's */ 164 struct tty *qd_tty[NQD*4]; /* teletype structures for each.. */ 165 volatile char *qvmem[NQD]; 166 volatile struct pte *QVmap[NQD]; 167 #define CHUNK (64 * 1024) 168 #define QMEMSIZE (1024 * 1024 * 4) /* 4 meg */ 169 170 /* 171 * static storage used by multiple functions in this code 172 */ 173 int Qbus_unmap[NQD]; /* Qbus mapper release code */ 174 struct qdmap qdmap[NQD]; /* QDSS register map structure */ 175 struct qdflags qdflags[NQD]; /* QDSS register map structure */ 176 caddr_t qdbase[NQD]; /* base address of each QDSS unit */ 177 struct buf qdbuf[NQD]; /* buf structs used by strategy */ 178 short qdopened[NQD]; /* graphics device is open exclusive use */ 179 180 /* 181 * the array "event_shared[]" is made up of a number of event queue buffers 182 * equal to the number of QDSS's configured into the running kernel (NQD). 183 * Each event queue buffer begins with an event queue header (struct qdinput) 184 * followed by a group of event queue entries (struct _vs_event). The array 185 * "*eq_header[]" is an array of pointers to the start of each event queue 186 * buffer in "event_shared[]". 187 */ 188 #define EQSIZE ((EVENT_BUFSIZE * NQD) + 512) 189 190 char event_shared[EQSIZE]; /* reserve space for event bufs */ 191 struct qdinput *eq_header[NQD]; /* event queue header pntrs */ 192 193 /* 194 * This allocation method reserves enough memory pages for NQD shared DMA I/O 195 * buffers. Each buffer must consume an integral number of memory pages to 196 * guarantee that a following buffer will begin on a page boundary. Also, 197 * enough space is allocated so that the FIRST I/O buffer can start at the 198 * 1st page boundary after "&DMA_shared". Page boundaries are used so that 199 * memory protections can be turned on/off for individual buffers. 200 */ 201 #define IOBUFSIZE ((DMA_BUFSIZ * NQD) + 512) 202 203 char DMA_shared[IOBUFSIZE]; /* reserve I/O buffer space */ 204 struct DMAreq_header *DMAheader[NQD]; /* DMA buffer header pntrs */ 205 206 /* 207 * The driver assists a client in scroll operations by loading dragon 208 * registers from an interrupt service routine. The loading is done using 209 * parameters found in memory shrade between the driver and it's client. 210 * The scroll parameter structures are ALL loacted in the same memory page 211 * for reasons of memory economy. 212 */ 213 char scroll_shared[2 * 512]; /* reserve space for scroll structs */ 214 struct scroll *scroll[NQD]; /* pointers to scroll structures */ 215 216 /* 217 * the driver is programmable to provide the user with color map write 218 * services at VSYNC interrupt time. At interrupt time the driver loads 219 * the color map with any user-requested load data found in shared memory 220 */ 221 #define COLOR_SHARED ((COLOR_BUFSIZ * NQD) + 512) 222 223 char color_shared[COLOR_SHARED]; /* reserve space: color bufs */ 224 struct color_buf *color_buf[NQD]; /* pointers to color bufs */ 225 226 /* 227 * mouse input event structures 228 */ 229 struct mouse_report last_rep[NQD]; 230 struct mouse_report current_rep[NQD]; 231 232 struct selinfo qdrsel[NQD]; /* process waiting for select */ 233 struct _vs_cursor cursor[NQD]; /* console cursor */ 234 int qdcount = 0; /* count of successfully probed qd's */ 235 int nNQD = NQD; 236 int DMAbuf_size = DMA_BUFSIZ; 237 int QDlast_DMAtype; /* type of the last DMA operation */ 238 239 /* #define QDSSMAJOR 41 */ /* QDSS major device number. We don't care! */ 240 241 /* 242 * macro to get system time. Used to time stamp event queue entries 243 */ 244 #define TOY ((time.tv_sec * 100) + (time.tv_usec / 10000)) 245 246 void qd_attach __P((struct device *, struct device *, void *)); 247 static int qd_match __P((struct device *, struct cfdata *, void *)); 248 249 static void qddint __P((void *)); /* DMA gate array intrpt service */ 250 static void qdaint __P((void *)); /* Dragon ADDER intrpt service */ 251 static void qdiint __P((void *)); 252 253 #define QDPRIOR (PZERO-1) /* must be negative */ 254 #define FALSE 0 255 #ifdef TRUE 256 #undef TRUE 257 #endif 258 #define TRUE ~FALSE 259 #define BAD -1 260 #define GOOD 0 261 262 /* 263 * macro to create a system virtual page number from system virtual adrs 264 */ 265 #define VTOP(x) (((int)x & ~0xC0000000) >> VAX_PGSHIFT) 266 267 /* 268 * QDSS register address offsets from start of QDSS address space 269 */ 270 #define QDSIZE (52 * 1024) /* size of entire QDSS foot print */ 271 #define TMPSIZE (16 * 1024) /* template RAM is 8k SHORT WORDS */ 272 #define TMPSTART 0x8000 /* offset of template RAM from base adrs */ 273 #define REGSIZE (5 * 512) /* regs touch 2.5k (5 pages) of addr space */ 274 #define REGSTART 0xC000 /* offset of reg pages from base adrs */ 275 #define ADDER (REGSTART+0x000) 276 #define DGA (REGSTART+0x200) 277 #define DUART (REGSTART+0x400) 278 #define MEMCSR (REGSTART+0x800) 279 #define CLRSIZE (3 * 512) /* color map size */ 280 #define CLRSTART (REGSTART+0xA00) /* color map start offset from base */ 281 /* 0x0C00 really */ 282 #define RED (CLRSTART+0x000) 283 #define BLUE (CLRSTART+0x200) 284 #define GREEN (CLRSTART+0x400) 285 286 287 /* 288 * QDSS minor device numbers. The *real* minor device numbers are in 289 * the bottom two bits of the major/minor device spec. Bits 2 and up are 290 * used to specify the QDSS device number (ie: which one?) 291 */ 292 293 #define CONS 0 294 #define GRAPHIC 2 295 296 /* 297 * console cursor bitmap (white block cursor) 298 */ 299 short cons_cursor[32] = { 300 /* A */ 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 301 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 302 /* B */ 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 303 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF, 0x00FF 304 }; 305 306 /* 307 * constants used in font operations 308 */ 309 #define CHARS 190 /* # of chars in the font */ 310 #define CHAR_HEIGHT 15 /* char height in pixels */ 311 #define CHAR_WIDTH 8 /* char width in pixels*/ 312 #define FONT_WIDTH (CHAR_WIDTH * CHARS) /* font width in pixels */ 313 #define ROWS CHAR_HEIGHT 314 #define FONT_X 0 /* font's off screen adrs */ 315 #define FONT_Y (2048 - CHAR_HEIGHT) 316 317 /* Offset to second row characters (XXX - should remove) */ 318 #define FONT_OFFSET ((MAX_SCREEN_X/CHAR_WIDTH)*CHAR_HEIGHT) 319 320 extern char q_font[]; /* reference font object code */ 321 extern u_short q_key[]; /* reference key xlation tables */ 322 extern u_short q_shift_key[]; 323 extern char *q_special[]; 324 325 /* 326 * definitions for cursor acceleration reporting 327 */ 328 #define ACC_OFF 0x01 /* acceleration is inactive */ 329 330 /* 331 * virtual console support. 332 */ 333 extern struct cdevsw *consops; 334 cons_decl(qd); 335 cdev_decl(qd); 336 void setup_dragon __P((int)); 337 void init_shared __P((int)); 338 void clear_qd_screen __P((int)); 339 void ldfont __P((int)); 340 void ldcursor __P((int, short *)); 341 void setup_input __P((int)); 342 void blitc __P((int, u_char)); 343 void scroll_up __P((volatile struct adder *)); 344 void write_ID __P((volatile struct adder *, short, short)); 345 int wait_status __P((volatile struct adder *, int)); 346 void led_control __P((int, int, int)); 347 void qdstart(struct tty *); 348 void qdearly(void); 349 int qdpolling = 0; 350 351 /* 352 * LK-201 state storage for input console keyboard conversion to ASCII 353 */ 354 struct q_keyboard { 355 int shift; /* state variables */ 356 int cntrl; 357 int lock; 358 int lastcode; /* last keycode typed */ 359 unsigned kup[8]; /* bits for each keycode*/ 360 unsigned dkeys[8]; /* down/up mode keys */ 361 char last; /* last character */ 362 } q_keyboard; 363 364 /* 365 * tty settings on first open 366 */ 367 #define IFLAG (BRKINT|ISTRIP|IXON|IXANY|ICRNL|IMAXBEL) 368 #define OFLAG (OPOST|OXTABS|ONLCR) 369 #define LFLAG (ISIG|ICANON|ECHO|IEXTEN) 370 #define CFLAG (PARENB|CREAD|CS7|CLOCAL) 371 372 /* 373 * Kernel virtual addresses where we can map in the QBUS io page and the 374 * QDSS memory during qdcninit. pmap_bootstrap fills this in. 375 */ 376 void *qd_ubaio; 377 378 /* This is the QDSS unit 0 CSR. It is hard-coded in here so that the 379 * QDSS can be used as the console. The console routines don't get 380 * any config info. The ROM also autodetects at this address, so 381 * the console QDSS should be at this address. Furthermore, nothing 382 * else shuld be at this address instead because that would confuse the 383 * ROM and this driver. 384 */ 385 #define QDSSCSR 0x1F00 386 387 volatile u_short *qdaddr; /* Virtual address for QDSS CSR */ 388 389 /* 390 * This flag is set to 1 if the console initialization (qdcninit) 391 * has been performed on qd0. That initialization is required and must 392 * be done before the device probe routine. 393 */ 394 int qd0cninited = 0, qd0iscons = 0; 395 396 /* 397 * Do early check if the qdss is console. If not; don't allocate 398 * any memory for it in bootstrap. 399 */ 400 void 401 qdearly() 402 { 403 extern vaddr_t virtual_avail; 404 int tmp; 405 406 /* Make sure we're running on a system that can have a QDSS */ 407 if (vax_boardtype == VAX_BTYP_630) { 408 /* Now check some undocumented flag */ 409 if ((*(int *)(0x200B801E) & 0x60) == 0) 410 /* The KA630 isn't using a QDSS as the console, 411 * so we won't either */ 412 return; 413 } else if (vax_boardtype != VAX_BTYP_650) 414 return; 415 416 /* How to check for console on KA650? We assume that if there is a 417 * QDSS, it is console. 418 */ 419 #define QIOPAGE 0x20000000 /* XXX */ 420 #define UBAIOPAGES 16 421 tmp = QIOPAGE + ubdevreg(QDSSCSR); 422 if (badaddr((caddr_t)tmp, sizeof(short))) 423 return; 424 425 MAPVIRT(qvmem[0], 64 * 1024 * NQD / VAX_NBPG); 426 MAPVIRT(qd_ubaio, 16); 427 pmap_map((int)qd_ubaio, QIOPAGE, QIOPAGE + UBAIOPAGES * VAX_NBPG, 428 VM_PROT_READ|VM_PROT_WRITE); 429 qdaddr = (u_short *)((u_int)qd_ubaio + ubdevreg(QDSSCSR)); 430 qd0iscons = 1; 431 } 432 433 void 434 qdcnprobe(cndev) 435 struct consdev *cndev; 436 { 437 int i; 438 439 cndev->cn_pri = CN_DEAD; 440 441 if (mfpr(PR_MAPEN) == 0) 442 return; /* Cannot use qd if vm system is OFF */ 443 444 if (!qd0iscons) 445 return; 446 447 /* Find the console device corresponding to the console QDSS */ 448 for (i = 0; i < nchrdev; i++) 449 if (cdevsw[i].d_open == qdopen) { 450 cndev->cn_dev = makedev(i,0); 451 cndev->cn_pri = CN_INTERNAL; 452 return; 453 } 454 return; 455 } 456 457 458 /* 459 * Init QDSS as console (before probe routine) 460 */ 461 void 462 qdcninit(cndev) 463 struct consdev *cndev; 464 { 465 caddr_t phys_adr; /* physical QDSS base adrs */ 466 u_int mapix; /* index into QVmap[] array */ 467 int unit; 468 469 /* qdaddr must point to CSR for this unit! */ 470 471 /* The console QDSS is QDSS unit 0 */ 472 unit = 0; 473 474 /* 475 * Map q-bus memory used by qdss. (separate map) 476 */ 477 mapix = QMEMSIZE - (CHUNK * (unit + 1)); 478 #define QMEM 0x30000000 479 (int)phys_adr = QMEM + mapix; 480 pmap_map((int)(qvmem[0]), (int)phys_adr, (int)(phys_adr + (CHUNK*NQD)), 481 VM_PROT_READ|VM_PROT_WRITE); 482 483 /* 484 * Set QVmap to point to page table entries for what we just 485 * mapped. 486 */ 487 QVmap[0] = (struct pte *)kvtopte(qvmem[0]); 488 489 /* 490 * tell QDSS which Q memory address base to decode 491 * (shifted right 16 bits - its in 64K units) 492 */ 493 *qdaddr = (u_short)((int)mapix >> 16); 494 qdflags[unit].config = *(u_short *)qdaddr; 495 496 /* 497 * load qdmap struct with the virtual addresses of the QDSS elements 498 */ 499 qdbase[unit] = (caddr_t) (qvmem[0]); 500 qdmap[unit].template = qdbase[unit] + TMPSTART; 501 qdmap[unit].adder = qdbase[unit] + ADDER; 502 qdmap[unit].dga = qdbase[unit] + DGA; 503 qdmap[unit].duart = qdbase[unit] + DUART; 504 qdmap[unit].memcsr = qdbase[unit] + MEMCSR; 505 qdmap[unit].red = qdbase[unit] + RED; 506 qdmap[unit].blue = qdbase[unit] + BLUE; 507 qdmap[unit].green = qdbase[unit] + GREEN; 508 509 qdflags[unit].duart_imask = 0; /* init shadow variables */ 510 511 /* 512 * init the QDSS 513 */ 514 515 *(short *)qdmap[unit].memcsr |= SYNC_ON; /* once only: turn on sync */ 516 517 cursor[unit].x = 0; 518 cursor[unit].y = 0; 519 init_shared(unit); /* init shared memory */ 520 setup_dragon(unit); /* init the ADDER/VIPER stuff */ 521 clear_qd_screen(unit); /* clear the screen */ 522 ldfont(unit); /* load the console font */ 523 ldcursor(unit, cons_cursor); /* load default cursor map */ 524 setup_input(unit); /* init the DUART */ 525 526 /* Set flag so probe knows */ 527 qd0cninited = 1; 528 } /* qdcninit */ 529 530 /* see <sys/device.h> */ 531 struct cfattach qd_ca = { 532 sizeof(struct qd_softc), qd_match, qd_attach 533 }; 534 535 #define QD_RCSR(reg) \ 536 bus_space_read_2(sc->sc_iot, sc->sc_ioh, reg) 537 #define QD_WCSR(reg, val) \ 538 bus_space_write_2(sc->sc_iot, sc->sc_ioh, reg, val) 539 540 /* 541 * Configure QDSS into Q memory and make it intrpt. 542 * 543 * side effects: QDSS gets mapped into Qbus memory space at the first 544 * vacant 64kb boundary counting back from the top of 545 * Qbus memory space (qvmem+4mb) 546 * 547 * return: QDSS bus request level and vector address returned in 548 * registers by UNIX convention. 549 * 550 */ 551 static int 552 qd_match(parent, match, aux) 553 struct device *parent; 554 struct cfdata *match; 555 void *aux; 556 { 557 struct qd_softc ssc; 558 struct qd_softc *sc = &ssc; 559 struct uba_attach_args *ua = aux; 560 struct uba_softc *uh = (void *)parent; 561 int unit; 562 volatile struct dga *dga; /* pointer to gate array structure */ 563 int vector; 564 #ifdef notdef 565 int *ptep; /* page table entry pointer */ 566 caddr_t phys_adr; /* physical QDSS base adrs */ 567 u_int mapix; 568 #endif 569 570 /* Create a "fake" softc with only a few fields used. */ 571 sc->sc_iot = ua->ua_iot; 572 sc->sc_ioh = ua->ua_ioh; 573 sc->sc_dmat = ua->ua_dmat; 574 /* 575 * calculate board unit number from I/O page register address 576 */ 577 unit = (int) (((int)sc->sc_ioh >> 1) & 0x0007); 578 579 /* 580 * QDSS regs must be mapped to Qbus memory space at a 64kb 581 * physical boundary. The Qbus memory space is mapped into 582 * the system memory space at config time. After config 583 * runs, "qvmem[0]" (ubavar.h) holds the system virtual adrs 584 * of the start of Qbus memory. The Qbus memory page table 585 * is found via an array of pte ptrs called "QVmap[]" (ubavar.h) 586 * which is also loaded at config time. These are the 587 * variables used below to find a vacant 64kb boundary in 588 * Qbus memory, and load it's corresponding physical adrs 589 * into the QDSS's I/O page CSR. 590 */ 591 592 /* 593 * Only if QD is the graphics device. 594 */ 595 596 /* if this QDSS is NOT the console, then do init here.. */ 597 598 if (unit != 0) { 599 printf("qd: can't support two qdss's (yet)\n"); 600 #ifdef notdef /* can't test */ 601 if (v_consputc != qdputc || unit != 0) { 602 603 /* 604 * read QDSS config info 605 */ 606 qdflags[unit].config = *(u_short *)reg; 607 608 /* 609 * find an empty 64kb adrs boundary 610 */ 611 612 qdbase[unit] = (caddr_t) (qvmem[0] + QMEMSIZE - CHUNK); 613 614 /* 615 * find the cpusw entry that matches this machine. 616 */ 617 cpup = &cpusw[cpu]; 618 while (!(BADADDR(qdbase[unit], sizeof(short)))) 619 qdbase[unit] -= CHUNK; 620 621 /* 622 * tell QDSS which Q memory address base to decode 623 */ 624 mapix = (int) (VTOP(qdbase[unit]) - VTOP(qvmem[0])); 625 ptep = (int *) QVmap[0] + mapix; 626 phys_adr = (caddr_t)(((int)*ptep&0x001FFFFF)<<VAX_PGSHIFT); 627 *(u_short *)reg = (u_short) ((int)phys_adr >> 16); 628 629 /* 630 * load QDSS adrs map with system addresses 631 * of device regs 632 */ 633 qdmap[unit].template = qdbase[unit] + TMPSTART; 634 qdmap[unit].adder = qdbase[unit] + ADDER; 635 qdmap[unit].dga = qdbase[unit] + DGA; 636 qdmap[unit].duart = qdbase[unit] + DUART; 637 qdmap[unit].memcsr = qdbase[unit] + MEMCSR; 638 qdmap[unit].red = qdbase[unit] + RED; 639 qdmap[unit].blue = qdbase[unit] + BLUE; 640 qdmap[unit].green = qdbase[unit] + GREEN; 641 642 /* device init */ 643 644 cursor[unit].x = 0; 645 cursor[unit].y = 0; 646 init_shared(unit); /* init shared memory */ 647 setup_dragon(unit); /* init the ADDER/VIPER stuff */ 648 ldcursor(unit, cons_cursor); /* load default cursor map */ 649 setup_input(unit); /* init the DUART */ 650 clear_qd_screen(unit); 651 ldfont(unit); /* load the console font */ 652 653 /* once only: turn on sync */ 654 655 *(short *)qdmap[unit].memcsr |= SYNC_ON; 656 } 657 #endif /*notdef*/ 658 } else { 659 /* We are dealing with qd0 */ 660 661 if (!qd0cninited) { 662 /* 663 * qd0 has not been initiallized as the console. 664 * We need to do some initialization now 665 * 666 * XXX 667 * However, if the QDSS is not the console then 668 * that stupid undocumented bit (see qdcnprobe) 669 * is cleared. Then the QDSS refuses to work. 670 * (What did the ROM do to it!?) 671 * XXX 672 */ 673 return 0; 674 675 #if 0 676 qdaddr = (void *)reg; 677 678 /* Lame probe for QDSS. Should be ok for qd0 */ 679 if (badaddr((caddr_t)qdaddr, sizeof(short))) 680 return 0; 681 682 qdcninit(NULL); 683 #endif 684 } 685 } 686 687 688 /* 689 * The QDSS interrupts at HEX vectors xx0 (DMA) xx4 690 * (ADDER) and xx8 (DUART). Therefore, we take three 691 * vectors from the vector pool, and then continue 692 * to take them until we get a xx0 HEX vector. The 693 * pool provides vectors in contiguous decending 694 * order. 695 */ 696 697 vector = (uh->uh_lastiv -= 4*3); /* take three vectors */ 698 699 while (vector & 0x0F) { /* if lo nibble != 0.. */ 700 /* ..take another vector */ 701 vector = (uh->uh_lastiv -= 4); 702 } 703 704 /* 705 * setup DGA to do a DMA interrupt (transfer count = 0) 706 */ 707 dga = (struct dga *) qdmap[unit].dga; 708 dga->csr = (short) HALT; /* disable everything */ 709 dga->ivr = (short) vector; /* load intrpt base vector */ 710 dga->bytcnt_lo = (short) 0; /* DMA xfer count = 0 */ 711 dga->bytcnt_hi = (short) 0; 712 713 /* 714 * turn on DMA interrupts 715 */ 716 dga->csr &= ~SET_DONE_FIFO; 717 dga->csr |= DMA_IE | DL_ENB; 718 719 DELAY(20000); /* wait for the intrpt */ 720 dga->csr = HALT; /* stop the wheels */ 721 722 /* 723 * score this as an existing qdss 724 */ 725 qdcount++; 726 727 return 1; 728 } /* qdprobe */ 729 730 731 void qd_attach(parent, self, aux) 732 struct device *parent, *self; 733 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 = self->dv_unit; /* 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, flag, mode, p) 796 dev_t dev; 797 int flag, mode; 798 struct proc *p; 799 { 800 volatile struct dga *dga; /* ptr to gate array struct */ 801 struct tty *tp; 802 volatile struct duart *duart; 803 int unit; 804 int minor_dev; 805 806 minor_dev = minor(dev); /* get QDSS minor device number */ 807 unit = minor_dev >> 2; 808 809 /* 810 * check for illegal conditions 811 */ 812 if (unit >= qd_cd.cd_ndevs || qd_cd.cd_devs[unit] == NULL) 813 return (ENXIO); /* no such device or address */ 814 815 duart = (struct duart *) qdmap[unit].duart; 816 dga = (struct dga *) qdmap[unit].dga; 817 818 if ((minor_dev & 0x03) == 2) { 819 /* 820 * this is the graphic device... 821 */ 822 if (qdopened[unit] != 0) 823 return(EBUSY); 824 else 825 qdopened[unit] = 1; 826 qdflags[unit].inuse |= GRAPHIC_DEV; /* graphics dev is open */ 827 /* 828 * enble kbd & mouse intrpts in DUART mask reg 829 */ 830 qdflags[unit].duart_imask |= 0x22; 831 duart->imask = qdflags[unit].duart_imask; 832 } else { 833 /* Only one console */ 834 if (minor_dev) return ENXIO; 835 836 /* If not done already, allocate tty structure */ 837 if (qd_tty[minor_dev] == NULL) 838 qd_tty[minor_dev] = ttymalloc(); 839 840 if (qd_tty[minor_dev] == NULL) 841 return ENXIO; 842 843 /* 844 * this is the console 845 */ 846 qdflags[unit].inuse |= CONS_DEV; /* mark console as open */ 847 dga->csr |= CURS_ENB; 848 qdflags[unit].duart_imask |= 0x02; 849 duart->imask = qdflags[unit].duart_imask; 850 /* 851 * some setup for tty handling 852 */ 853 tp = qd_tty[minor_dev]; 854 /* tp->t_addr = ui->ui_addr; */ 855 tp->t_oproc = qdstart; 856 tp->t_dev = dev; 857 if ((tp->t_state & TS_ISOPEN) == 0) { 858 ttychars(tp); 859 tp->t_ispeed = B9600; 860 tp->t_ospeed = B9600; 861 tp->t_state = TS_ISOPEN | TS_CARR_ON; 862 tp->t_iflag = TTYDEF_IFLAG; 863 tp->t_oflag = TTYDEF_OFLAG; 864 tp->t_lflag = TTYDEF_LFLAG; 865 tp->t_cflag = TTYDEF_CFLAG; 866 ttsetwater(tp); 867 } 868 /* 869 * enable intrpts, open line discipline 870 */ 871 dga->csr |= GLOBAL_IE; /* turn on the interrupts */ 872 return ((*tp->t_linesw->l_open)(dev, tp)); 873 } 874 dga->csr |= GLOBAL_IE; /* turn on the interrupts */ 875 return(0); 876 877 } /* qdopen */ 878 879 /*ARGSUSED*/ 880 int 881 qdclose(dev, flag, mode, p) 882 dev_t dev; 883 int flag, mode; 884 struct proc *p; 885 { 886 struct tty *tp; 887 struct qdmap *qd; 888 volatile int *ptep; 889 volatile struct dga *dga; /* gate array register map pointer */ 890 volatile struct duart *duart; 891 volatile struct adder *adder; 892 int unit; 893 int minor_dev; 894 u_int mapix; 895 int i; /* SIGNED index */ 896 struct uba_softc *uh; 897 898 minor_dev = minor(dev); /* get minor device number */ 899 unit = minor_dev >> 2; /* get QDSS number */ 900 qd = &qdmap[unit]; 901 902 uh = (struct uba_softc *) 903 (((struct device *)(qd_cd.cd_devs[unit]))->dv_parent); 904 905 906 if ((minor_dev & 0x03) == 2) { 907 /* 908 * this is the graphic device... 909 */ 910 if (qdopened[unit] != 1) 911 return(EBUSY); 912 else 913 qdopened[unit] = 0; /* allow it to be re-opened */ 914 /* 915 * re-protect device memory 916 */ 917 if (qdflags[unit].mapped & MAPDEV) { 918 /* 919 * TEMPLATE RAM 920 */ 921 mapix = VTOP((int)qd->template) - VTOP(qvmem[0]); 922 ptep = (int *)(QVmap[0] + mapix); 923 for (i = 0; i < vax_btop(TMPSIZE); i++, ptep++) 924 *ptep = (*ptep & ~PG_PROT) | PG_V | PG_KW; 925 /* 926 * ADDER 927 */ 928 mapix = VTOP((int)qd->adder) - VTOP(qvmem[0]); 929 ptep = (int *)(QVmap[0] + mapix); 930 for (i = 0; i < vax_btop(REGSIZE); i++, ptep++) 931 *ptep = (*ptep & ~PG_PROT) | PG_V | PG_KW; 932 /* 933 * COLOR MAPS 934 */ 935 mapix = VTOP((int)qd->red) - VTOP(qvmem[0]); 936 ptep = (int *)(QVmap[0] + mapix); 937 for (i = 0; i < vax_btop(CLRSIZE); i++, ptep++) 938 *ptep = (*ptep & ~PG_PROT) | PG_V | PG_KW; 939 } 940 941 /* 942 * re-protect DMA buffer and free the map registers 943 */ 944 if (qdflags[unit].mapped & MAPDMA) { 945 panic("Unmapping unmapped buffer"); 946 #ifdef notyet 947 /* 948 * Ragge 990620: 949 * Can't happen because the buffer can't be mapped. 950 */ 951 dga = (struct dga *) qdmap[unit].dga; 952 adder = (struct adder *) qdmap[unit].adder; 953 dga->csr &= ~DMA_IE; 954 dga->csr &= ~0x0600; /* kill DMA */ 955 adder->command = CANCEL; 956 /* 957 * if DMA was running, flush spurious intrpt 958 */ 959 if (dga->bytcnt_lo != 0) { 960 dga->bytcnt_lo = 0; 961 dga->bytcnt_hi = 0; 962 DMA_SETIGNORE(DMAheader[unit]); 963 dga->csr |= DMA_IE; 964 dga->csr &= ~DMA_IE; 965 } 966 ptep = (int *) 967 ((VTOP(DMAheader[unit]*4)) + (mfpr(PR_SBR)|0x80000000)); 968 for (i = 0; i < vax_btop(DMAbuf_size); i++, ptep++) 969 *ptep = (*ptep & ~PG_PROT) | PG_V | PG_KW; 970 ubarelse(uh, &Qbus_unmap[unit]); 971 #endif 972 } 973 974 /* 975 * re-protect 1K (2 pages) event queue 976 */ 977 if (qdflags[unit].mapped & MAPEQ) { 978 ptep = (int *) 979 ((VTOP(eq_header[unit])*4) + (mfpr(PR_SBR)|0x80000000)); 980 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; ptep++; 981 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; 982 } 983 /* 984 * re-protect scroll param area and disable scroll intrpts 985 */ 986 if (qdflags[unit].mapped & MAPSCR) { 987 ptep = (int *) ((VTOP(scroll[unit]) * 4) 988 + (mfpr(PR_SBR) | 0x80000000)); 989 /* 990 * re-protect 512 scroll param area 991 */ 992 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; 993 adder = (struct adder *) qdmap[unit].adder; 994 qdflags[unit].adder_ie &= ~FRAME_SYNC; 995 adder->interrupt_enable = qdflags[unit].adder_ie; 996 } 997 /* 998 * re-protect color map write buffer area and kill intrpts 999 */ 1000 if (qdflags[unit].mapped & MAPCOLOR) { 1001 ptep = (int *) ((VTOP(color_buf[unit]) * 4) 1002 + (mfpr(PR_SBR) | 0x80000000)); 1003 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; ptep++; 1004 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; 1005 color_buf[unit]->status = 0; 1006 adder = (struct adder *) qdmap[unit].adder; 1007 qdflags[unit].adder_ie &= ~VSYNC; 1008 adder->interrupt_enable = qdflags[unit].adder_ie; 1009 } 1010 mtpr(0, PR_TBIA); 1011 /* flag everything now unmapped */ 1012 qdflags[unit].mapped = 0; 1013 qdflags[unit].inuse &= ~GRAPHIC_DEV; 1014 qdflags[unit].curs_acc = ACC_OFF; 1015 qdflags[unit].curs_thr = 128; 1016 /* 1017 * restore the console 1018 */ 1019 dga = (struct dga *) qdmap[unit].dga; 1020 adder = (struct adder *) qdmap[unit].adder; 1021 dga->csr &= ~DMA_IE; 1022 dga->csr &= ~0x0600; /* halt the DMA! (just in case...) */ 1023 dga->csr |= DMA_ERR; /* clear error condition */ 1024 adder->command = CANCEL; 1025 /* 1026 * if DMA was running, flush spurious intrpt 1027 */ 1028 if (dga->bytcnt_lo != 0) { 1029 dga->bytcnt_lo = 0; 1030 dga->bytcnt_hi = 0; 1031 DMA_SETIGNORE(DMAheader[unit]); 1032 dga->csr |= DMA_IE; 1033 dga->csr &= ~DMA_IE; 1034 } 1035 init_shared(unit); /* init shared memory */ 1036 setup_dragon(unit); /* init ADDER/VIPER */ 1037 ldcursor(unit, cons_cursor); /* load default cursor map */ 1038 setup_input(unit); /* init the DUART */ 1039 ldfont(unit); 1040 cursor[unit].x = 0; 1041 cursor[unit].y = 0; 1042 /* 1043 * shut off the mouse rcv intrpt and turn on kbd intrpts 1044 */ 1045 duart = (struct duart *) qdmap[unit].duart; 1046 qdflags[unit].duart_imask &= ~(0x20); 1047 qdflags[unit].duart_imask |= 0x02; 1048 duart->imask = qdflags[unit].duart_imask; 1049 /* 1050 * shut off interrupts if all is closed 1051 */ 1052 if (!(qdflags[unit].inuse & CONS_DEV)) { 1053 dga = (struct dga *) qdmap[unit].dga; 1054 dga->csr &= ~(GLOBAL_IE | DMA_IE); 1055 } 1056 } else { 1057 /* 1058 * this is the console 1059 */ 1060 tp = qd_tty[minor_dev]; 1061 (*tp->t_linesw->l_close)(tp, flag); 1062 ttyclose(tp); 1063 tp->t_state = 0; 1064 qdflags[unit].inuse &= ~CONS_DEV; 1065 /* 1066 * if graphics device is closed, kill interrupts 1067 */ 1068 if (!(qdflags[unit].inuse & GRAPHIC_DEV)) { 1069 dga = (struct dga *) qdmap[unit].dga; 1070 dga->csr &= ~(GLOBAL_IE | DMA_IE); 1071 } 1072 } 1073 1074 return(0); 1075 1076 } /* qdclose */ 1077 1078 int 1079 qdioctl(dev, cmd, datap, flags, p) 1080 dev_t dev; 1081 u_long cmd; 1082 caddr_t datap; 1083 int flags; 1084 struct proc *p; 1085 { 1086 volatile int *ptep; /* page table entry pointer */ 1087 int mapix; /* QVmap[] page table index */ 1088 struct _vs_event *event; 1089 struct tty *tp; 1090 int i; 1091 struct qdmap *qd; /* pointer to device map struct */ 1092 volatile struct dga *dga; /* Gate Array reg structure pntr */ 1093 volatile struct duart *duart; /* DUART reg structure pointer */ 1094 volatile struct adder *adder; /* ADDER reg structure pointer */ 1095 struct prgkbd *cmdbuf; 1096 struct prg_cursor *curs; 1097 struct _vs_cursor *pos; 1098 int unit = minor(dev) >> 2; /* number of caller's QDSS */ 1099 u_int minor_dev = minor(dev); 1100 int error; 1101 int s; 1102 short *temp; /* a pointer to template RAM */ 1103 struct uba_softc *uh; 1104 1105 uh = (struct uba_softc *) 1106 (((struct device *)(qd_cd.cd_devs[unit]))->dv_parent); 1107 1108 /* 1109 * service graphic device ioctl commands 1110 */ 1111 switch (cmd) { 1112 1113 case QD_GETEVENT: 1114 /* 1115 * extract the oldest event from the event queue 1116 */ 1117 if (ISEMPTY(eq_header[unit])) { 1118 event = (struct _vs_event *) datap; 1119 event->vse_device = VSE_NULL; 1120 break; 1121 } 1122 event = (struct _vs_event *) GETBEGIN(eq_header[unit]); 1123 s = spl5(); 1124 GETEND(eq_header[unit]); 1125 splx(s); 1126 bcopy((caddr_t)event, datap, sizeof(struct _vs_event)); 1127 break; 1128 1129 case QD_RESET: 1130 /* 1131 * init the dragon stuff, DUART, and driver variables 1132 */ 1133 init_shared(unit); /* init shared memory */ 1134 setup_dragon(unit); /* init the ADDER/VIPER stuff */ 1135 clear_qd_screen(unit); 1136 ldcursor(unit, cons_cursor); /* load default cursor map */ 1137 ldfont(unit); /* load the console font */ 1138 setup_input(unit); /* init the DUART */ 1139 break; 1140 1141 case QD_SET: 1142 /* 1143 * init the DUART and driver variables 1144 */ 1145 init_shared(unit); 1146 setup_input(unit); 1147 break; 1148 1149 case QD_CLRSCRN: 1150 /* 1151 * clear the QDSS screen. (NOTE that this reinits the dragon) 1152 */ 1153 #ifdef notdef /* has caused problems and isn't necessary */ 1154 setup_dragon(unit); 1155 clear_qd_screen(unit); 1156 #endif 1157 break; 1158 1159 case QD_WTCURSOR: 1160 /* 1161 * load a cursor into template RAM 1162 */ 1163 ldcursor(unit, (short *)datap); 1164 break; 1165 1166 case QD_RDCURSOR: 1167 1168 temp = (short *) qdmap[unit].template; 1169 /* 1170 * cursor is 32 WORDS from the end of the 8k WORD... 1171 * ...template space 1172 */ 1173 temp += (8 * 1024) - 32; 1174 for (i = 0; i < 32; ++i, datap += sizeof(short)) 1175 *(short *)datap = *temp++; 1176 break; 1177 1178 case QD_POSCURSOR: 1179 /* 1180 * position the mouse cursor 1181 */ 1182 dga = (struct dga *) qdmap[unit].dga; 1183 pos = (struct _vs_cursor *) datap; 1184 s = spl5(); 1185 dga->x_cursor = TRANX(pos->x); 1186 dga->y_cursor = TRANY(pos->y); 1187 eq_header[unit]->curs_pos.x = pos->x; 1188 eq_header[unit]->curs_pos.y = pos->y; 1189 splx(s); 1190 break; 1191 1192 case QD_PRGCURSOR: 1193 /* 1194 * set the cursor acceleration factor 1195 */ 1196 curs = (struct prg_cursor *) datap; 1197 s = spl5(); 1198 qdflags[unit].curs_acc = curs->acc_factor; 1199 qdflags[unit].curs_thr = curs->threshold; 1200 splx(s); 1201 break; 1202 1203 case QD_MAPDEVICE: 1204 /* 1205 * enable 'user write' to device pages 1206 */ 1207 qdflags[unit].mapped |= MAPDEV; 1208 qd = (struct qdmap *) &qdmap[unit]; 1209 /* 1210 * enable user write to template RAM 1211 */ 1212 mapix = VTOP((int)qd->template) - VTOP(qvmem[0]); 1213 ptep = (int *)(QVmap[0] + mapix); 1214 for (i = 0; i < vax_btop(TMPSIZE); i++, ptep++) 1215 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1216 1217 /* 1218 * enable user write to registers 1219 */ 1220 mapix = VTOP((int)qd->adder) - VTOP(qvmem[0]); 1221 ptep = (int *)(QVmap[0] + mapix); 1222 for (i = 0; i < vax_btop(REGSIZE); i++, ptep++) 1223 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1224 1225 /* 1226 * enable user write to color maps 1227 */ 1228 mapix = VTOP((int)qd->red) - VTOP(qvmem[0]); 1229 ptep = (int *)(QVmap[0] + mapix); 1230 for (i = 0; i < vax_btop(CLRSIZE); i++, ptep++) 1231 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1232 1233 /* 1234 * enable user write to DUART 1235 */ 1236 mapix = VTOP((int)qd->duart) - VTOP(qvmem[0]); 1237 ptep = (int *)(QVmap[0] + mapix); 1238 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; /* duart page */ 1239 1240 mtpr(0, PR_TBIA); /* invalidate translation buffer */ 1241 1242 /* 1243 * stuff qdmap structure in return buffer 1244 */ 1245 bcopy((caddr_t)qd, datap, sizeof(struct qdmap)); 1246 1247 break; 1248 1249 #ifdef notyet 1250 /* 1251 * Ragge 999620: 1252 * Can't map in the graphic buffer into user space for now. 1253 * The best way to fix this is to convert this driver to wscons. 1254 */ 1255 case QD_MAPIOBUF: 1256 /* 1257 * do setup for DMA by user process 1258 * 1259 * set 'user write enable' bits for DMA buffer 1260 */ 1261 qdflags[unit].mapped |= MAPDMA; 1262 ptep = (int *) ((VTOP(DMAheader[unit]) * 4) 1263 + (mfpr(PR_SBR) | 0x80000000)); 1264 for (i = 0; i < vax_btop(DMAbuf_size); i++, ptep++) 1265 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1266 mtpr(0, PR_TBIA); /* invalidate translation buffer */ 1267 /* 1268 * set up QBUS map registers for DMA 1269 */ 1270 DMAheader[unit]->QBAreg = 1271 uballoc(uh, (caddr_t)DMAheader[unit], DMAbuf_size, 0); 1272 if (DMAheader[unit]->QBAreg == 0) 1273 printf("qd%d: qdioctl: QBA setup error\n", unit); 1274 Qbus_unmap[unit] = DMAheader[unit]->QBAreg; 1275 DMAheader[unit]->QBAreg &= 0x3FFFF; 1276 /* 1277 * return I/O buf adr 1278 */ 1279 *(int *)datap = (int) DMAheader[unit]; 1280 break; 1281 #endif 1282 1283 case QD_MAPSCROLL: 1284 /* 1285 * map the shared scroll param area and enable scroll interpts 1286 */ 1287 qdflags[unit].mapped |= MAPSCR; 1288 ptep = (int *) ((VTOP(scroll[unit]) * 4) 1289 + (mfpr(PR_SBR) | 0x80000000)); 1290 /* 1291 * allow user write to scroll area 1292 */ 1293 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1294 mtpr(0, PR_TBIA); /* invalidate translation buf */ 1295 scroll[unit]->status = 0; 1296 adder = (struct adder *) qdmap[unit].adder; 1297 qdflags[unit].adder_ie |= FRAME_SYNC; 1298 adder->interrupt_enable = qdflags[unit].adder_ie; 1299 *(int *)datap = (int) scroll[unit]; /* return scroll area */ 1300 break; 1301 1302 case QD_UNMAPSCROLL: 1303 /* 1304 * unmap shared scroll param area and disable scroll intrpts 1305 */ 1306 if (qdflags[unit].mapped & MAPSCR) { 1307 qdflags[unit].mapped &= ~MAPSCR; 1308 ptep = (int *) ((VTOP(scroll[unit]) * 4) 1309 + (mfpr(PR_SBR) | 0x80000000)); 1310 /* 1311 * re-protect 512 scroll param area 1312 */ 1313 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; 1314 mtpr(0, PR_TBIA); /* smash CPU's translation buf */ 1315 adder = (struct adder *) qdmap[unit].adder; 1316 qdflags[unit].adder_ie &= ~FRAME_SYNC; 1317 adder->interrupt_enable = qdflags[unit].adder_ie; 1318 } 1319 break; 1320 1321 case QD_MAPCOLOR: 1322 /* 1323 * map shared color map write buf and turn on vsync intrpt 1324 */ 1325 qdflags[unit].mapped |= MAPCOLOR; 1326 ptep = (int *) ((VTOP(color_buf[unit]) * 4) 1327 + (mfpr(PR_SBR) | 0x80000000)); 1328 /* 1329 * allow user write to color map write buffer 1330 */ 1331 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; ptep++; 1332 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1333 mtpr(0, PR_TBIA); /* clr CPU translation buf */ 1334 adder = (struct adder *) qdmap[unit].adder; 1335 qdflags[unit].adder_ie |= VSYNC; 1336 adder->interrupt_enable = qdflags[unit].adder_ie; 1337 /* 1338 * return color area address 1339 */ 1340 *(int *)datap = (int) color_buf[unit]; 1341 break; 1342 1343 case QD_UNMAPCOLOR: 1344 /* 1345 * unmap shared color map write buffer and kill VSYNC intrpts 1346 */ 1347 if (qdflags[unit].mapped & MAPCOLOR) { 1348 qdflags[unit].mapped &= ~MAPCOLOR; 1349 ptep = (int *) ((VTOP(color_buf[unit]) * 4) 1350 + (mfpr(PR_SBR) | 0x80000000)); 1351 /* 1352 * re-protect color map write buffer 1353 */ 1354 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; ptep++; 1355 *ptep = (*ptep & ~PG_PROT) | PG_KW | PG_V; 1356 mtpr(0, PR_TBIA); 1357 adder = (struct adder *) qdmap[unit].adder; 1358 qdflags[unit].adder_ie &= ~VSYNC; 1359 adder->interrupt_enable = qdflags[unit].adder_ie; 1360 } 1361 break; 1362 1363 case QD_MAPEVENT: 1364 /* 1365 * give user write access to the event queue 1366 */ 1367 qdflags[unit].mapped |= MAPEQ; 1368 ptep = (int *) ((VTOP(eq_header[unit]) * 4) 1369 + (mfpr(PR_SBR) | 0x80000000)); 1370 /* 1371 * allow user write to 1K event queue 1372 */ 1373 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; ptep++; 1374 *ptep = (*ptep & ~PG_PROT) | PG_RW | PG_V; 1375 mtpr(0, PR_TBIA); /* clr CPU translation buf */ 1376 /* 1377 * return event queue address 1378 */ 1379 *(int *)datap = (int)eq_header[unit]; 1380 break; 1381 1382 case QD_PRGKBD: 1383 /* 1384 * pass caller's programming commands to LK201 1385 */ 1386 duart = (struct duart *)qdmap[unit].duart; 1387 cmdbuf = (struct prgkbd *)datap; /* pnt to kbd cmd buf */ 1388 /* 1389 * send command 1390 */ 1391 for (i = 1000; i > 0; --i) { 1392 if (duart->statusA&XMT_RDY) { 1393 duart->dataA = cmdbuf->cmd; 1394 break; 1395 } 1396 } 1397 if (i == 0) { 1398 printf("qd%d: qdioctl: timeout on XMT_RDY [1]\n", unit); 1399 break; 1400 } 1401 /* 1402 * send param1? 1403 */ 1404 if (cmdbuf->cmd & LAST_PARAM) 1405 break; 1406 for (i = 1000; i > 0; --i) { 1407 if (duart->statusA&XMT_RDY) { 1408 duart->dataA = cmdbuf->param1; 1409 break; 1410 } 1411 } 1412 if (i == 0) { 1413 printf("qd%d: qdioctl: timeout on XMT_RDY [2]\n", unit); 1414 break; 1415 } 1416 /* 1417 * send param2? 1418 */ 1419 if (cmdbuf->param1 & LAST_PARAM) 1420 break; 1421 for (i = 1000; i > 0; --i) { 1422 if (duart->statusA&XMT_RDY) { 1423 duart->dataA = cmdbuf->param2; 1424 break; 1425 } 1426 } 1427 if (i == 0) { 1428 printf("qd%d: qdioctl: timeout on XMT_RDY [3]\n", unit); 1429 break; 1430 } 1431 break; 1432 1433 case QD_PRGMOUSE: 1434 /* 1435 * pass caller's programming commands to the mouse 1436 */ 1437 duart = (struct duart *) qdmap[unit].duart; 1438 for (i = 1000; i > 0; --i) { 1439 if (duart->statusB&XMT_RDY) { 1440 duart->dataB = *datap; 1441 break; 1442 } 1443 } 1444 if (i == 0) { 1445 printf("qd%d: qdioctl: timeout on XMT_RDY [4]\n", unit); 1446 } 1447 break; 1448 1449 case QD_RDCONFIG: 1450 /* 1451 * get QDSS configuration word and return it 1452 */ 1453 *(short *)datap = qdflags[unit].config; 1454 break; 1455 1456 case QD_KERN_LOOP: 1457 case QD_KERN_UNLOOP: 1458 /* 1459 * vestige from ultrix. BSD uses TIOCCONS to redirect 1460 * kernel console output. 1461 */ 1462 break; 1463 1464 case QD_PRGTABLET: 1465 /* 1466 * program the tablet 1467 */ 1468 duart = (struct duart *) qdmap[unit].duart; 1469 for (i = 1000; i > 0; --i) { 1470 if (duart->statusB&XMT_RDY) { 1471 duart->dataB = *datap; 1472 break; 1473 } 1474 } 1475 if (i == 0) { 1476 printf("qd%d: qdioctl: timeout on XMT_RDY [5]\n", unit); 1477 } 1478 break; 1479 1480 case QD_PRGTABRES: 1481 /* 1482 * program the tablet report resolution factor 1483 */ 1484 qdflags[unit].tab_res = *(short *)datap; 1485 break; 1486 1487 default: 1488 /* 1489 * service tty ioctl's 1490 */ 1491 if (!(minor_dev & 0x02)) { 1492 tp = qd_tty[minor_dev]; 1493 error = 1494 1495 (*tp->t_linesw->l_ioctl)(tp, cmd, datap, flags, p); 1496 if (error >= 0) { 1497 return(error); 1498 } 1499 error = ttioctl(tp, cmd, datap, flags, p); 1500 if (error >= 0) { 1501 return(error); 1502 } 1503 } 1504 break; 1505 } 1506 1507 return(0); 1508 1509 } /* qdioctl */ 1510 1511 1512 int 1513 qdpoll(dev, events, p) 1514 dev_t dev; 1515 int events; 1516 struct proc *p; 1517 { 1518 int s; 1519 int unit; 1520 struct tty *tp; 1521 u_int minor_dev = minor(dev); 1522 int revents = 0; 1523 1524 s = spl5(); 1525 unit = minor_dev >> 2; 1526 1527 if ((minor_dev & 0x03) == 2) { 1528 /* 1529 * This is a graphics device, so check for events. 1530 */ 1531 1532 if (events & (POLLIN | POLLRDNORM)) 1533 if(!(ISEMPTY(eq_header[unit]))) 1534 revents |= events & (POLLIN | POLLRDNORM); 1535 1536 if (events & (POLLOUT | POLLWRNORM)) 1537 if (DMA_ISEMPTY(DMAheader[unit])) 1538 revents |= events & (POLLOUT | POLLWRNORM); 1539 1540 if (revents == 0) { 1541 if (events & (POLLIN | POLLRDNORM)) { 1542 selrecord(p, &qdrsel[unit]); 1543 qdflags[unit].selmask |= SEL_READ; 1544 } 1545 1546 if (events & (POLLOUT | POLLWRNORM)) { 1547 selrecord(p, &qdrsel[unit]); 1548 qdflags[unit].selmask |= SEL_WRITE; 1549 } 1550 } 1551 } else { 1552 /* 1553 * this is a tty device 1554 */ 1555 tp = qd_tty[minor_dev]; 1556 revents = (*tp->t_linesw->l_poll)(tp, events, p); 1557 } 1558 1559 splx(s); 1560 return (revents); 1561 } /* qdpoll() */ 1562 1563 1564 void qd_strategy(struct buf *bp); 1565 1566 /*ARGSUSED*/ 1567 int 1568 qdwrite(dev, uio, flag) 1569 dev_t dev; 1570 struct uio *uio; 1571 { 1572 struct tty *tp; 1573 int minor_dev; 1574 int unit; 1575 1576 minor_dev = minor(dev); 1577 unit = (minor_dev >> 2) & 0x07; 1578 1579 if (((minor_dev&0x03) != 0x02) && (qdflags[unit].inuse&CONS_DEV)) { 1580 /* 1581 * this is the console... 1582 */ 1583 tp = qd_tty[minor_dev]; 1584 return ((*tp->t_linesw->l_write)(tp, uio, flag)); 1585 } else if (qdflags[unit].inuse & GRAPHIC_DEV) { 1586 /* 1587 * this is a DMA xfer from user space 1588 */ 1589 return (physio(qd_strategy, &qdbuf[unit], 1590 dev, B_WRITE, minphys, uio)); 1591 } 1592 return (ENXIO); 1593 } 1594 1595 /*ARGSUSED*/ 1596 int 1597 qdread(dev, uio, flag) 1598 dev_t dev; 1599 struct uio *uio; 1600 { 1601 struct tty *tp; 1602 int minor_dev; 1603 int unit; 1604 1605 minor_dev = minor(dev); 1606 unit = (minor_dev >> 2) & 0x07; 1607 1608 if ((minor_dev & 0x03) != 0x02 && qdflags[unit].inuse & CONS_DEV) { 1609 /* 1610 * this is the console 1611 */ 1612 tp = qd_tty[minor_dev]; 1613 return ((*tp->t_linesw->l_read)(tp, uio, flag)); 1614 } else if (qdflags[unit].inuse & GRAPHIC_DEV) { 1615 /* 1616 * this is a bitmap-to-processor xfer 1617 */ 1618 return (physio(qd_strategy, &qdbuf[unit], 1619 dev, B_READ, minphys, uio)); 1620 } 1621 return (ENXIO); 1622 } 1623 1624 /*************************************************************** 1625 * 1626 * qd_strategy()... strategy routine to do DMA 1627 * 1628 ***************************************************************/ 1629 1630 void 1631 qd_strategy(bp) 1632 struct buf *bp; 1633 { 1634 volatile struct dga *dga; 1635 volatile struct adder *adder; 1636 int unit; 1637 int QBAreg; 1638 int s; 1639 int cookie; 1640 struct uba_softc *uh; 1641 1642 unit = (minor(bp->b_dev) >> 2) & 0x07; 1643 1644 uh = (struct uba_softc *) 1645 (((struct device *)(qd_cd.cd_devs[unit]))->dv_parent); 1646 1647 /* 1648 * init pointers 1649 */ 1650 dga = (struct dga *) qdmap[unit].dga; 1651 panic("qd_strategy"); 1652 #ifdef notyet 1653 if ((QBAreg = ubasetup(uh, bp, 0)) == 0) { 1654 printf("qd%d: qd_strategy: QBA setup error\n", unit); 1655 goto STRAT_ERR; 1656 } 1657 #endif 1658 s = spl5(); 1659 qdflags[unit].user_dma = -1; 1660 dga->csr |= DMA_IE; 1661 cookie = QBAreg & 0x3FFFF; 1662 dga->adrs_lo = (short) cookie; 1663 dga->adrs_hi = (short) (cookie >> 16); 1664 dga->bytcnt_lo = (short) bp->b_bcount; 1665 dga->bytcnt_hi = (short) (bp->b_bcount >> 16); 1666 1667 while (qdflags[unit].user_dma) { 1668 (void) tsleep(&qdflags[unit].user_dma, QSPRIOR, 1669 "qdstrat", 0); 1670 } 1671 splx(s); 1672 #ifdef notyet 1673 ubarelse(uh, &QBAreg); 1674 #endif 1675 if (!(dga->csr & DMA_ERR)) { 1676 biodone(bp); 1677 return; 1678 } 1679 1680 /* STRAT_ERR: */ 1681 adder = (struct adder *) qdmap[unit].adder; 1682 adder->command = CANCEL; /* cancel adder activity */ 1683 dga->csr &= ~DMA_IE; 1684 dga->csr &= ~0x0600; /* halt DMA (reset fifo) */ 1685 dga->csr |= DMA_ERR; /* clear error condition */ 1686 bp->b_flags |= B_ERROR; /* flag an error to physio() */ 1687 1688 /* 1689 * if DMA was running, flush spurious intrpt 1690 */ 1691 if (dga->bytcnt_lo != 0) { 1692 dga->bytcnt_lo = 0; 1693 dga->bytcnt_hi = 0; 1694 DMA_SETIGNORE(DMAheader[unit]); 1695 dga->csr |= DMA_IE; 1696 } 1697 biodone(bp); 1698 } /* qd_strategy */ 1699 1700 1701 /* 1702 * Start output to the console screen 1703 */ 1704 void qdstart(tp) 1705 struct tty *tp; 1706 { 1707 int which_unit, unit, c; 1708 int s; 1709 1710 unit = minor(tp->t_dev); 1711 which_unit = (unit >> 2) & 0x3; 1712 unit &= 0x03; 1713 1714 s = spl5(); 1715 1716 /* 1717 * If it's currently active, or delaying, no need to do anything. 1718 */ 1719 if (tp->t_state & (TS_TIMEOUT|TS_BUSY|TS_TTSTOP)) 1720 goto out; 1721 1722 /* 1723 * Display chars until the queue is empty. 1724 * Drop input from anything but the console 1725 * device on the floor. 1726 * 1727 * XXX - this loop is done at spltty. 1728 * 1729 */ 1730 while (tp->t_outq.c_cc) { 1731 c = getc(&tp->t_outq); 1732 if (unit == 0) 1733 blitc(which_unit, (u_char)c); 1734 } 1735 /* 1736 * If there are sleepers, and output has drained below low 1737 * water mark, wake up the sleepers. 1738 */ 1739 if (tp->t_outq.c_cc <= tp->t_lowat) { 1740 if (tp->t_state & TS_ASLEEP){ 1741 tp->t_state &= ~TS_ASLEEP; 1742 wakeup((caddr_t) &tp->t_outq); 1743 } 1744 } 1745 1746 tp->t_state &= ~TS_BUSY; 1747 1748 out: 1749 splx(s); 1750 1751 } /* qdstart */ 1752 1753 /*ARGSUSED*/ 1754 void 1755 qdstop(tp, flag) 1756 struct tty *tp; 1757 int flag; 1758 { 1759 int s; 1760 1761 s = spl5(); /* block intrpts during state modification */ 1762 if (tp->t_state & TS_BUSY) { 1763 if ((tp->t_state & TS_TTSTOP) == 0) 1764 tp->t_state |= TS_FLUSH; 1765 else 1766 tp->t_state &= ~TS_BUSY; 1767 } 1768 splx(s); 1769 } 1770 1771 /* 1772 * Output a character to the QDSS screen 1773 */ 1774 void 1775 blitc(unit, chr) 1776 int unit; 1777 u_char chr; 1778 { 1779 volatile struct adder *adder; 1780 volatile struct dga *dga; 1781 int i; 1782 int nograph = !(qdflags[unit].inuse&GRAPHIC_DEV); 1783 static short inescape[NQD]; 1784 1785 adder = (struct adder *)qdmap[unit].adder; 1786 dga = (struct dga *) qdmap[unit].dga; 1787 /* 1788 * BSD comment: this (&=0177) defeats the extended character 1789 * set code for the glass tty, but if i had the time i would 1790 * spend it ripping out the code completely. This driver 1791 * is too big for its own good. 1792 */ 1793 chr &= 0177; 1794 /* 1795 * Cursor addressing (so vi will work). 1796 * Decode for "\E=%.%." cursor motion description. 1797 * Corresponds to type "qdcons" in /etc/termcap: 1798 * 1799 * qd|qdss|qdcons|qdss glass tty (4.4 BSD):\ 1800 * :am:do=^J:le=^H:bs:cm=\E=%.%.:cl=1^Z:co#128:li#57::nd=^L:up=^K: 1801 * 1802 */ 1803 if (inescape[unit] && nograph) { 1804 switch (inescape[unit]++) { 1805 case 1: 1806 if (chr != '=') { 1807 /* abort escape sequence */ 1808 inescape[unit] = 0; 1809 blitc(unit, chr); 1810 } 1811 return; 1812 case 2: 1813 /* position row */ 1814 cursor[unit].y = CHAR_HEIGHT * chr; 1815 if (cursor[unit].y > 863 - CHAR_HEIGHT) 1816 cursor[unit].y = 863 - CHAR_HEIGHT; 1817 dga->y_cursor = TRANY(cursor[unit].y); 1818 return; 1819 case 3: 1820 /* position column */ 1821 cursor[unit].x = CHAR_WIDTH * chr; 1822 if (cursor[unit].x > 1024 - CHAR_WIDTH) 1823 cursor[unit].x = 1023 - CHAR_WIDTH; 1824 dga->x_cursor = TRANX(cursor[unit].x); 1825 inescape[unit] = 0; 1826 return; 1827 default: 1828 inescape[unit] = 0; 1829 blitc(unit, chr); 1830 } 1831 } 1832 1833 switch (chr) { 1834 case '\r': /* return char */ 1835 cursor[unit].x = 0; 1836 if (nograph) 1837 dga->x_cursor = TRANX(cursor[unit].x); 1838 return; 1839 1840 case '\t': /* tab char */ 1841 for (i = 8 - ((cursor[unit].x >> 3) & 0x07); i > 0; --i) { 1842 blitc(unit, ' '); 1843 } 1844 return; 1845 1846 case '\n': /* line feed char */ 1847 if ((cursor[unit].y += CHAR_HEIGHT) > (863 - CHAR_HEIGHT)) { 1848 if (nograph) { 1849 cursor[unit].y -= CHAR_HEIGHT; 1850 scroll_up(adder); 1851 } else 1852 cursor[unit].y = 0; 1853 } 1854 if (nograph) 1855 dga->y_cursor = TRANY(cursor[unit].y); 1856 return; 1857 1858 case '\b': /* backspace char */ 1859 if (cursor[unit].x > 0) { 1860 cursor[unit].x -= CHAR_WIDTH; 1861 if (nograph) 1862 dga->x_cursor = TRANX(cursor[unit].x); 1863 } 1864 return; 1865 case CTRL('k'): /* cursor up */ 1866 if (nograph && cursor[unit].y > 0) { 1867 cursor[unit].y -= CHAR_HEIGHT; 1868 dga->y_cursor = TRANY(cursor[unit].y); 1869 } 1870 return; 1871 1872 case CTRL('^'): /* home cursor */ 1873 if (nograph) { 1874 cursor[unit].x = 0; 1875 dga->x_cursor = TRANX(cursor[unit].x); 1876 cursor[unit].y = 0; 1877 dga->y_cursor = TRANY(cursor[unit].y); 1878 } 1879 return; 1880 1881 case CTRL('l'): /* cursor right */ 1882 if (nograph && cursor[unit].x < 1023 - CHAR_WIDTH) { 1883 cursor[unit].x += CHAR_WIDTH; 1884 dga->x_cursor = TRANX(cursor[unit].x); 1885 } 1886 return; 1887 1888 case CTRL('z'): /* clear screen */ 1889 if (nograph) { 1890 setup_dragon(unit); 1891 clear_qd_screen(unit); 1892 /* home cursor - termcap seems to assume this */ 1893 cursor[unit].x = 0; 1894 dga->x_cursor = TRANX(cursor[unit].x); 1895 cursor[unit].y = 0; 1896 dga->y_cursor = TRANY(cursor[unit].y); 1897 } 1898 return; 1899 1900 case '\033': /* start escape sequence */ 1901 if (nograph) 1902 inescape[unit] = 1; 1903 return; 1904 1905 default: 1906 if ((chr < ' ') || (chr > '~')) 1907 return; 1908 } 1909 /* 1910 * setup VIPER operand control registers 1911 */ 1912 write_ID(adder, CS_UPDATE_MASK, 0x0001); /* select plane #0 */ 1913 write_ID(adder, SRC1_OCR_B, 1914 EXT_NONE | INT_SOURCE | ID | BAR_SHIFT_DELAY); 1915 write_ID(adder, CS_UPDATE_MASK, 0x00FE); /* select other planes */ 1916 write_ID(adder, SRC1_OCR_B, 1917 EXT_SOURCE | INT_NONE | NO_ID | BAR_SHIFT_DELAY); 1918 write_ID(adder, CS_UPDATE_MASK, 0x00FF); /* select all planes */ 1919 write_ID(adder, DST_OCR_B, 1920 EXT_NONE | INT_NONE | NO_ID | NO_BAR_SHIFT_DELAY); 1921 write_ID(adder, MASK_1, 0xFFFF); 1922 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 1); 1923 write_ID(adder, VIPER_Z_LOAD | BACKGROUND_COLOR_Z, 0); 1924 adder->x_clip_min = 0; 1925 adder->x_clip_max = 1024; 1926 adder->y_clip_min = 0; 1927 adder->y_clip_max = 864; 1928 /* 1929 * load DESTINATION origin and vectors 1930 */ 1931 adder->fast_dest_dy = 0; 1932 adder->slow_dest_dx = 0; 1933 adder->error_1 = 0; 1934 adder->error_2 = 0; 1935 adder->rasterop_mode = DST_WRITE_ENABLE | NORMAL; 1936 (void)wait_status(adder, RASTEROP_COMPLETE); 1937 adder->destination_x = cursor[unit].x; 1938 adder->fast_dest_dx = CHAR_WIDTH; 1939 adder->destination_y = cursor[unit].y; 1940 adder->slow_dest_dy = CHAR_HEIGHT; 1941 /* 1942 * load SOURCE origin and vectors 1943 */ 1944 if ((chr - ' ') > (CHARS - 1)) { 1945 printf("Invalid character (x)%x in blitc\n",chr); 1946 chr = ' '; 1947 } 1948 /* 1949 * X position is modulo the number of characters per line 1950 */ 1951 adder->source_1_x = FONT_X + 1952 (((chr - ' ') % (MAX_SCREEN_X/CHAR_WIDTH)) * CHAR_WIDTH); 1953 /* 1954 * Point to either first or second row 1955 */ 1956 adder->source_1_y = 2048 - 15 * 1957 (((chr - ' ')/(MAX_SCREEN_X/CHAR_WIDTH)) + 1); 1958 adder->source_1_dx = CHAR_WIDTH; 1959 adder->source_1_dy = CHAR_HEIGHT; 1960 write_ID(adder, LU_FUNCTION_R1, FULL_SRC_RESOLUTION | LF_SOURCE); 1961 adder->cmd = RASTEROP | OCRB | 0 | S1E | DTE; 1962 /* 1963 * update console cursor coordinates 1964 */ 1965 cursor[unit].x += CHAR_WIDTH; 1966 if (nograph) 1967 dga->x_cursor = TRANX(cursor[unit].x); 1968 if (cursor[unit].x > (1024 - CHAR_WIDTH)) { 1969 blitc(unit, '\r'); 1970 blitc(unit, '\n'); 1971 } 1972 1973 } /* blitc */ 1974 1975 /* 1976 * INTERRUPT SERVICE ROUTINES 1977 */ 1978 1979 /* 1980 * Service "DMA DONE" interrupt condition 1981 */ 1982 1983 static void 1984 qddint(arg) 1985 void *arg; 1986 { 1987 struct device *dv = arg; 1988 struct DMAreq_header *header; 1989 struct DMAreq *request; 1990 volatile struct dga *dga; 1991 volatile struct adder *adder; 1992 int cookie; /* DMA adrs for QDSS */ 1993 1994 (void)spl4(); /* allow interval timer in */ 1995 1996 /* 1997 * init pointers 1998 */ 1999 header = DMAheader[dv->dv_unit]; /* register for optimization */ 2000 dga = (struct dga *) qdmap[dv->dv_unit].dga; 2001 adder = (struct adder *) qdmap[dv->dv_unit].adder; 2002 2003 /* 2004 * if this interrupt flagged as bogus for interrupt flushing purposes.. 2005 */ 2006 if (DMA_ISIGNORE(header)) { 2007 DMA_CLRIGNORE(header); 2008 return; 2009 } 2010 2011 /* 2012 * dump a DMA hardware error message if appropriate 2013 */ 2014 if (dga->csr & DMA_ERR) { 2015 2016 if (dga->csr & PARITY_ERR) 2017 printf("qd%d: qddint: DMA hardware parity fault.\n", dv->dv_unit); 2018 2019 if (dga->csr & BUS_ERR) 2020 printf("qd%d: qddint: DMA hardware bus error.\n", dv->dv_unit); 2021 } 2022 2023 /* 2024 * if this was a DMA from user space... 2025 */ 2026 if (qdflags[dv->dv_unit].user_dma) { 2027 qdflags[dv->dv_unit].user_dma = 0; 2028 wakeup((caddr_t)&qdflags[dv->dv_unit].user_dma); 2029 return; 2030 } 2031 2032 /* 2033 * if we're doing DMA request queue services, field the error condition 2034 */ 2035 if (dga->csr & DMA_ERR) { 2036 2037 dga->csr &= ~0x0600; /* halt DMA (reset fifo) */ 2038 dga->csr |= DMA_ERR; /* clear error condition */ 2039 adder->command = CANCEL; /* cancel adder activity */ 2040 2041 DMA_SETERROR(header); /* flag error in header status word */ 2042 DMA_CLRACTIVE(header); 2043 header->DMAreq[header->oldest].DMAdone |= HARD_ERROR; 2044 header->newest = header->oldest; 2045 header->used = 0; 2046 2047 if (qdrsel[dv->dv_unit].si_pid && qdflags[dv->dv_unit].selmask & SEL_WRITE) { 2048 selwakeup(&qdrsel[dv->dv_unit]); 2049 qdrsel[dv->dv_unit].si_pid = 0; 2050 qdflags[dv->dv_unit].selmask &= ~SEL_WRITE; 2051 } 2052 2053 if (dga->bytcnt_lo != 0) { 2054 dga->bytcnt_lo = 0; 2055 dga->bytcnt_hi = 0; 2056 DMA_SETIGNORE(header); 2057 } 2058 return; 2059 } 2060 2061 /* 2062 * if the DMA request queue is now becoming non-full, 2063 * wakeup "select" client. 2064 */ 2065 if (DMA_ISFULL(header)) { 2066 if (qdrsel[dv->dv_unit].si_pid && qdflags[dv->dv_unit].selmask & SEL_WRITE) { 2067 selwakeup(&qdrsel[dv->dv_unit]); 2068 qdrsel[dv->dv_unit].si_pid = 0; 2069 qdflags[dv->dv_unit].selmask &= ~SEL_WRITE; 2070 } 2071 } 2072 2073 header->DMAreq[header->oldest].DMAdone |= REQUEST_DONE; 2074 QDlast_DMAtype = header->DMAreq[header->oldest].DMAtype; 2075 2076 /* check for unexpected interrupt */ 2077 if (DMA_ISEMPTY(header)) 2078 return; 2079 2080 DMA_GETEND(header); /* update request queue indices */ 2081 2082 /* 2083 * if no more DMA pending, wake up "select" client and exit 2084 */ 2085 if (DMA_ISEMPTY(header)) { 2086 if (qdrsel[dv->dv_unit].si_pid && qdflags[dv->dv_unit].selmask & SEL_WRITE) { 2087 selwakeup(&qdrsel[dv->dv_unit]); 2088 qdrsel[dv->dv_unit].si_pid = 0; 2089 qdflags[dv->dv_unit].selmask &= ~SEL_WRITE; 2090 } 2091 DMA_CLRACTIVE(header); /* flag DMA done */ 2092 return; 2093 } 2094 2095 /* 2096 * initiate next DMA xfer 2097 */ 2098 request = DMA_GETBEGIN(header); 2099 if (request->DMAtype != QDlast_DMAtype) { 2100 dga->csr &= ~0x0600; /* halt DMA (reset fifo) */ 2101 adder->command = CANCEL; /* cancel adder activity */ 2102 } 2103 2104 2105 switch (request->DMAtype) { 2106 2107 case DISPLIST: 2108 if (request->DMAtype != QDlast_DMAtype) { 2109 dga->csr |= DL_ENB; 2110 dga->csr &= ~(BTOP_ENB | BYTE_DMA); 2111 } 2112 break; 2113 2114 case PTOB: 2115 if (request->DMAtype != QDlast_DMAtype) { 2116 if (request->DMAdone & BYTE_PACK) 2117 dga->csr |= (PTOB_ENB | BYTE_DMA); 2118 else { 2119 dga->csr |= PTOB_ENB; 2120 dga->csr &= ~BYTE_DMA; 2121 } 2122 } 2123 break; 2124 2125 case BTOP: 2126 if (request->DMAtype != QDlast_DMAtype) { 2127 if (request->DMAdone & BYTE_PACK) { 2128 dga->csr &= ~DL_ENB; 2129 dga->csr |= (BTOP_ENB | BYTE_DMA); 2130 } 2131 else { 2132 dga->csr |= BTOP_ENB; 2133 dga->csr &= ~(BYTE_DMA | DL_ENB); 2134 } 2135 } 2136 break; 2137 default: 2138 printf("qd%d: qddint: illegal DMAtype parameter.\n", dv->dv_unit); 2139 DMA_CLRACTIVE(header); /* flag DMA done */ 2140 return; 2141 } 2142 2143 if (request->DMAdone & COUNT_ZERO) { 2144 dga->csr &= ~SET_DONE_FIFO; 2145 } 2146 else if (request->DMAdone & FIFO_EMPTY) { 2147 dga->csr |= SET_DONE_FIFO; 2148 } 2149 2150 if (request->DMAdone & WORD_PACK) 2151 dga->csr &= ~BYTE_DMA; 2152 else if (request->DMAdone & BYTE_PACK) 2153 dga->csr |= BYTE_DMA; 2154 2155 dga->csr |= DMA_IE; 2156 QDlast_DMAtype = request->DMAtype; 2157 2158 cookie = ((int)request->bufp - (int)header) + (int)header->QBAreg; 2159 2160 dga->adrs_lo = (short) cookie; 2161 dga->adrs_hi = (short) (cookie >> 16); 2162 2163 dga->bytcnt_lo = (short) request->length; 2164 dga->bytcnt_hi = (short) (request->length >> 16); 2165 2166 return; 2167 } 2168 2169 /* 2170 * ADDER interrupt service routine 2171 */ 2172 static void 2173 qdaint(arg) 2174 void *arg; 2175 { 2176 struct device *dv = arg; 2177 volatile struct adder *adder; 2178 struct color_buf *cbuf; 2179 int i; 2180 struct rgb *rgbp; 2181 volatile short *red; 2182 volatile short *green; 2183 volatile short *blue; 2184 2185 (void)spl4(); /* allow interval timer in */ 2186 2187 adder = (struct adder *) qdmap[dv->dv_unit].adder; 2188 2189 /* 2190 * service the vertical blank interrupt (VSYNC bit) by loading 2191 * any pending color map load request 2192 */ 2193 if (adder->status & VSYNC) { 2194 adder->status &= ~VSYNC; /* clear the interrupt */ 2195 cbuf = color_buf[dv->dv_unit]; 2196 if (cbuf->status & LOAD_COLOR_MAP) { 2197 2198 red = (short *) qdmap[dv->dv_unit].red; 2199 green = (short *) qdmap[dv->dv_unit].green; 2200 blue = (short *) qdmap[dv->dv_unit].blue; 2201 2202 for (i = cbuf->count, rgbp = cbuf->rgb; 2203 --i >= 0; rgbp++) { 2204 red[rgbp->offset] = (short) rgbp->red; 2205 green[rgbp->offset] = (short) rgbp->green; 2206 blue[rgbp->offset] = (short) rgbp->blue; 2207 } 2208 2209 cbuf->status &= ~LOAD_COLOR_MAP; 2210 } 2211 } 2212 2213 /* 2214 * service the scroll interrupt (FRAME_SYNC bit) 2215 */ 2216 if (adder->status & FRAME_SYNC) { 2217 adder->status &= ~FRAME_SYNC; /* clear the interrupt */ 2218 2219 if (scroll[dv->dv_unit]->status & LOAD_REGS) { 2220 2221 for (i = 1000, adder->status = 0; i > 0 && 2222 !(adder->status&ID_SCROLL_READY); --i) 2223 ; 2224 2225 if (i == 0) { 2226 printf("qd%d: qdaint: timeout on ID_SCROLL_READY\n", 2227 qd); 2228 return; 2229 } 2230 2231 adder->ID_scroll_data = scroll[dv->dv_unit]->viper_constant; 2232 adder->ID_scroll_command = ID_LOAD | SCROLL_CONSTANT; 2233 2234 adder->y_scroll_constant = 2235 scroll[dv->dv_unit]->y_scroll_constant; 2236 adder->y_offset_pending = scroll[dv->dv_unit]->y_offset; 2237 2238 if (scroll[dv->dv_unit]->status & LOAD_INDEX) { 2239 2240 adder->x_index_pending = 2241 scroll[dv->dv_unit]->x_index_pending; 2242 adder->y_index_pending = 2243 scroll[dv->dv_unit]->y_index_pending; 2244 } 2245 2246 scroll[dv->dv_unit]->status = 0x00; 2247 } 2248 } 2249 } 2250 2251 /* 2252 * DUART input interrupt service routine 2253 * 2254 * XXX - this routine should be broken out - it is essentially 2255 * straight line code. 2256 */ 2257 2258 static void 2259 qdiint(arg) 2260 void *arg; 2261 { 2262 struct device *dv = arg; 2263 struct _vs_event *event; 2264 struct qdinput *eqh; 2265 volatile struct dga *dga; 2266 volatile struct duart *duart; 2267 struct mouse_report *new_rep; 2268 struct tty *tp; 2269 u_short chr; 2270 u_short status; 2271 u_short data; 2272 u_short key; 2273 char do_wakeup = 0; /* flag to do a select wakeup call */ 2274 char a, b, c; /* mouse button test variables */ 2275 2276 (void)spl4(); /* allow interval timer in */ 2277 2278 eqh = eq_header[dv->dv_unit]; /* optimized as a register */ 2279 new_rep = ¤t_rep[dv->dv_unit]; 2280 duart = (struct duart *) qdmap[dv->dv_unit].duart; 2281 2282 /* 2283 * if the graphic device is turned on.. 2284 */ 2285 if (qdflags[dv->dv_unit].inuse & GRAPHIC_DEV) { 2286 /* 2287 * empty DUART 2288 */ 2289 while (duart->statusA&RCV_RDY || duart->statusB&RCV_RDY) { 2290 /* 2291 * pick up LK-201 input (if any) 2292 */ 2293 if (duart->statusA&RCV_RDY) { 2294 2295 /* if error condition, then reset it */ 2296 2297 if (duart->statusA&0x70) { 2298 duart->cmdA = 0x40; 2299 continue; 2300 } 2301 2302 /* event queue full now? (overflow condition) */ 2303 2304 if (ISFULL(eqh) == TRUE) { 2305 printf( 2306 "qd%d: qdiint: event queue overflow\n", 2307 qd); 2308 break; 2309 } 2310 2311 /* 2312 * Check for various keyboard errors */ 2313 2314 key = duart->dataA & 0xFF; 2315 2316 if (key==LK_POWER_ERROR || 2317 key==LK_KDOWN_ERROR || 2318 key == LK_INPUT_ERROR || 2319 key == LK_OUTPUT_ERROR) { 2320 printf( 2321 "qd%d: qdiint: keyboard error, code = %x\n", 2322 qd,key); 2323 return; 2324 } 2325 2326 if (key < LK_LOWEST) 2327 return; 2328 2329 ++do_wakeup; /* request a select wakeup call */ 2330 2331 event = PUTBEGIN(eqh); 2332 PUTEND(eqh); 2333 2334 event->vse_key = key; 2335 event->vse_key &= 0x00FF; 2336 event->vse_x = eqh->curs_pos.x; 2337 event->vse_y = eqh->curs_pos.y; 2338 event->vse_time = TOY; 2339 event->vse_type = VSE_BUTTON; 2340 event->vse_direction = VSE_KBTRAW; 2341 event->vse_device = VSE_DKB; 2342 } 2343 2344 /* 2345 * pick up the mouse input (if any) */ 2346 2347 if ((status = duart->statusB) & RCV_RDY && 2348 qdflags[dv->dv_unit].pntr_id == MOUSE_ID) { 2349 2350 if (status & 0x70) { 2351 duart->cmdB = 0x40; 2352 continue; 2353 } 2354 2355 /* event queue full now? (overflow condition) */ 2356 2357 if (ISFULL(eqh) == TRUE) { 2358 printf( 2359 "qd%d: qdiint: event queue overflow\n", 2360 qd); 2361 break; 2362 } 2363 2364 data = duart->dataB; /* get report byte */ 2365 ++new_rep->bytcnt; /* bump report byte count */ 2366 2367 /* 2368 * if 1st byte of report.. */ 2369 2370 if ( data & START_FRAME) { 2371 new_rep->state = data; 2372 if (new_rep->bytcnt > 1) { 2373 /* start of new frame */ 2374 new_rep->bytcnt = 1; 2375 /* ..continue looking */ 2376 continue; 2377 } 2378 } 2379 2380 /* 2381 * if 2nd byte of report.. */ 2382 2383 else if (new_rep->bytcnt == 2) { 2384 new_rep->dx = data & 0x00FF; 2385 } 2386 2387 /* 2388 * if 3rd byte of report, load input event queue */ 2389 2390 else if (new_rep->bytcnt == 3) { 2391 2392 new_rep->dy = data & 0x00FF; 2393 new_rep->bytcnt = 0; 2394 2395 /* 2396 * if mouse position has changed.. */ 2397 2398 if (new_rep->dx != 0 || new_rep->dy != 0) { 2399 2400 /* 2401 * calculate acceleration factor, if needed */ 2402 2403 if (qdflags[dv->dv_unit].curs_acc > ACC_OFF) { 2404 2405 if (qdflags[dv->dv_unit].curs_thr <= new_rep->dx) 2406 new_rep->dx += 2407 (new_rep->dx - qdflags[dv->dv_unit].curs_thr) 2408 * qdflags[dv->dv_unit].curs_acc; 2409 2410 if (qdflags[dv->dv_unit].curs_thr <= new_rep->dy) 2411 new_rep->dy += 2412 (new_rep->dy - qdflags[dv->dv_unit].curs_thr) 2413 * qdflags[dv->dv_unit].curs_acc; 2414 } 2415 2416 /* 2417 * update cursor position coordinates */ 2418 2419 if (new_rep->state & X_SIGN) { 2420 eqh->curs_pos.x += new_rep->dx; 2421 if (eqh->curs_pos.x > 1023) 2422 eqh->curs_pos.x = 1023; 2423 } 2424 else { 2425 eqh->curs_pos.x -= new_rep->dx; 2426 if (eqh->curs_pos.x < -15) 2427 eqh->curs_pos.x = -15; 2428 } 2429 2430 if (new_rep->state & Y_SIGN) { 2431 eqh->curs_pos.y -= new_rep->dy; 2432 if (eqh->curs_pos.y < -15) 2433 eqh->curs_pos.y = -15; 2434 } 2435 else { 2436 eqh->curs_pos.y += new_rep->dy; 2437 if (eqh->curs_pos.y > 863) 2438 eqh->curs_pos.y = 863; 2439 } 2440 2441 /* 2442 * update cursor screen position */ 2443 2444 dga = (struct dga *) qdmap[dv->dv_unit].dga; 2445 dga->x_cursor = TRANX(eqh->curs_pos.x); 2446 dga->y_cursor = TRANY(eqh->curs_pos.y); 2447 2448 /* 2449 * if cursor is in the box, no event report */ 2450 2451 if (eqh->curs_pos.x <= eqh->curs_box.right && 2452 eqh->curs_pos.x >= eqh->curs_box.left && 2453 eqh->curs_pos.y >= eqh->curs_box.top && 2454 eqh->curs_pos.y <= eqh->curs_box.bottom ) { 2455 goto GET_MBUTTON; 2456 } 2457 2458 /* 2459 * report the mouse motion event */ 2460 2461 event = PUTBEGIN(eqh); 2462 PUTEND(eqh); 2463 2464 ++do_wakeup; /* request a select wakeup call */ 2465 2466 event->vse_x = eqh->curs_pos.x; 2467 event->vse_y = eqh->curs_pos.y; 2468 2469 event->vse_device = VSE_MOUSE; /* mouse */ 2470 event->vse_type = VSE_MMOTION; /* pos changed */ 2471 event->vse_key = 0; 2472 event->vse_direction = 0; 2473 event->vse_time = TOY; /* time stamp */ 2474 } 2475 2476 GET_MBUTTON: 2477 /* 2478 * if button state has changed */ 2479 2480 a = new_rep->state & 0x07; /*mask nonbutton bits */ 2481 b = last_rep[dv->dv_unit].state & 0x07; 2482 2483 if (a ^ b) { 2484 2485 for ( c = 1; c < 8; c <<= 1) { 2486 2487 if (!( c & (a ^ b))) /* this button change? */ 2488 continue; 2489 2490 /* event queue full? (overflow condition) */ 2491 2492 if (ISFULL(eqh) == TRUE) { 2493 printf("qd%d: qdiint: event queue overflow\n", qd); 2494 break; 2495 } 2496 2497 event = PUTBEGIN(eqh); /* get new event */ 2498 PUTEND(eqh); 2499 2500 ++do_wakeup; /* request select wakeup */ 2501 2502 event->vse_x = eqh->curs_pos.x; 2503 event->vse_y = eqh->curs_pos.y; 2504 2505 event->vse_device = VSE_MOUSE; /* mouse */ 2506 event->vse_type = VSE_BUTTON; /* new button */ 2507 event->vse_time = TOY; /* time stamp */ 2508 2509 /* flag changed button and if up or down */ 2510 2511 if (c == RIGHT_BUTTON) 2512 event->vse_key = VSE_RIGHT_BUTTON; 2513 else if (c == MIDDLE_BUTTON) 2514 event->vse_key = VSE_MIDDLE_BUTTON; 2515 else if (c == LEFT_BUTTON) 2516 event->vse_key = VSE_LEFT_BUTTON; 2517 2518 /* set bit = button depressed */ 2519 2520 if (c & a) 2521 event->vse_direction = VSE_KBTDOWN; 2522 else 2523 event->vse_direction = VSE_KBTUP; 2524 } 2525 } 2526 2527 /* refresh last report */ 2528 2529 last_rep[dv->dv_unit] = current_rep[dv->dv_unit]; 2530 2531 } /* get last byte of report */ 2532 } else if ((status = duart->statusB)&RCV_RDY && 2533 qdflags[dv->dv_unit].pntr_id == TABLET_ID) { 2534 /* 2535 * pickup tablet input, if any 2536 */ 2537 if (status&0x70) { 2538 duart->cmdB = 0x40; 2539 continue; 2540 } 2541 /* 2542 * event queue full now? (overflow condition) 2543 */ 2544 if (ISFULL(eqh) == TRUE) { 2545 printf("qd%d: qdiint: event queue overflow\n", qd); 2546 break; 2547 } 2548 2549 data = duart->dataB; /* get report byte */ 2550 ++new_rep->bytcnt; /* bump report byte count */ 2551 2552 /* 2553 * if 1st byte of report.. */ 2554 2555 if (data & START_FRAME) { 2556 new_rep->state = data; 2557 if (new_rep->bytcnt > 1) { 2558 new_rep->bytcnt = 1; /* start of new frame */ 2559 continue; /* ..continue looking */ 2560 } 2561 } 2562 2563 /* 2564 * if 2nd byte of report.. */ 2565 2566 else if (new_rep->bytcnt == 2) { 2567 new_rep->dx = data & 0x3F; 2568 } 2569 2570 /* 2571 * if 3rd byte of report.. */ 2572 2573 else if (new_rep->bytcnt == 3) { 2574 new_rep->dx |= (data & 0x3F) << 6; 2575 } 2576 2577 /* 2578 * if 4th byte of report.. */ 2579 2580 else if (new_rep->bytcnt == 4) { 2581 new_rep->dy = data & 0x3F; 2582 } 2583 2584 /* 2585 * if 5th byte of report, load input event queue */ 2586 2587 else if (new_rep->bytcnt == 5) { 2588 2589 new_rep->dy |= (data & 0x3F) << 6; 2590 new_rep->bytcnt = 0; 2591 2592 /* 2593 * update cursor position coordinates */ 2594 2595 new_rep->dx /= qdflags[dv->dv_unit].tab_res; 2596 new_rep->dy = (2200 - new_rep->dy) 2597 / qdflags[dv->dv_unit].tab_res; 2598 2599 if (new_rep->dx > 1023) { 2600 new_rep->dx = 1023; 2601 } 2602 if (new_rep->dy > 863) { 2603 new_rep->dy = 863; 2604 } 2605 2606 /* 2607 * report an event if the puck/stylus has moved 2608 */ 2609 2610 if (eqh->curs_pos.x != new_rep->dx || 2611 eqh->curs_pos.y != new_rep->dy) { 2612 2613 eqh->curs_pos.x = new_rep->dx; 2614 eqh->curs_pos.y = new_rep->dy; 2615 2616 /* 2617 * update cursor screen position */ 2618 2619 dga = (struct dga *) qdmap[dv->dv_unit].dga; 2620 dga->x_cursor = TRANX(eqh->curs_pos.x); 2621 dga->y_cursor = TRANY(eqh->curs_pos.y); 2622 2623 /* 2624 * if cursor is in the box, no event report 2625 */ 2626 2627 if (eqh->curs_pos.x <= eqh->curs_box.right && 2628 eqh->curs_pos.x >= eqh->curs_box.left && 2629 eqh->curs_pos.y >= eqh->curs_box.top && 2630 eqh->curs_pos.y <= eqh->curs_box.bottom ) { 2631 goto GET_TBUTTON; 2632 } 2633 2634 /* 2635 * report the tablet motion event */ 2636 2637 event = PUTBEGIN(eqh); 2638 PUTEND(eqh); 2639 2640 ++do_wakeup; /* request a select wakeup call */ 2641 2642 event->vse_x = eqh->curs_pos.x; 2643 event->vse_y = eqh->curs_pos.y; 2644 2645 event->vse_device = VSE_TABLET; /* tablet */ 2646 /* 2647 * right now, X handles tablet motion the same 2648 * as mouse motion 2649 */ 2650 event->vse_type = VSE_MMOTION; /* pos changed */ 2651 event->vse_key = 0; 2652 event->vse_direction = 0; 2653 event->vse_time = TOY; /* time stamp */ 2654 } 2655 GET_TBUTTON: 2656 /* 2657 * if button state has changed */ 2658 2659 a = new_rep->state & 0x1E; /* mask nonbutton bits */ 2660 b = last_rep[dv->dv_unit].state & 0x1E; 2661 2662 if (a ^ b) { 2663 2664 /* event queue full now? (overflow condition) */ 2665 2666 if (ISFULL(eqh) == TRUE) { 2667 printf("qd%d: qdiint: event queue overflow\n",qd); 2668 break; 2669 } 2670 2671 event = PUTBEGIN(eqh); /* get new event */ 2672 PUTEND(eqh); 2673 2674 ++do_wakeup; /* request a select wakeup call */ 2675 2676 event->vse_x = eqh->curs_pos.x; 2677 event->vse_y = eqh->curs_pos.y; 2678 2679 event->vse_device = VSE_TABLET; /* tablet */ 2680 event->vse_type = VSE_BUTTON; /* button changed */ 2681 event->vse_time = TOY; /* time stamp */ 2682 2683 /* define the changed button and if up or down */ 2684 2685 for ( c = 1; c <= 0x10; c <<= 1) { 2686 if (c & (a ^ b)) { 2687 if (c == T_LEFT_BUTTON) 2688 event->vse_key = VSE_T_LEFT_BUTTON; 2689 else if (c == T_FRONT_BUTTON) 2690 event->vse_key = VSE_T_FRONT_BUTTON; 2691 else if (c == T_RIGHT_BUTTON) 2692 event->vse_key = VSE_T_RIGHT_BUTTON; 2693 else if (c == T_BACK_BUTTON) 2694 event->vse_key = VSE_T_BACK_BUTTON; 2695 break; 2696 } 2697 } 2698 2699 /* set bit = button depressed */ 2700 2701 if (c & a) 2702 event->vse_direction = VSE_KBTDOWN; 2703 else 2704 event->vse_direction = VSE_KBTUP; 2705 } 2706 2707 /* refresh last report */ 2708 2709 last_rep[dv->dv_unit] = current_rep[dv->dv_unit]; 2710 2711 } /* get last byte of report */ 2712 } /* pick up tablet input */ 2713 2714 } /* while input available.. */ 2715 2716 /* 2717 * do select wakeup 2718 */ 2719 if (qdrsel[dv->dv_unit].si_pid && do_wakeup && qdflags[dv->dv_unit].selmask & SEL_READ) { 2720 selwakeup(&qdrsel[dv->dv_unit]); 2721 qdrsel[dv->dv_unit].si_pid = 0; 2722 qdflags[dv->dv_unit].selmask &= ~SEL_READ; 2723 do_wakeup = 0; 2724 } 2725 } else { 2726 /* 2727 * if the graphic device is not turned on, this is console input 2728 */ 2729 if (qdpolling) 2730 return; 2731 2732 if (dv->dv_unit >= qd_cd.cd_ndevs || qd_cd.cd_devs[dv->dv_unit] == NULL) 2733 return; /* no such device or address */ 2734 2735 tp = qd_tty[dv->dv_unit << 2]; 2736 2737 /* 2738 * Get a character from the keyboard. 2739 */ 2740 while (duart->statusA&RCV_RDY) { 2741 key = duart->dataA; 2742 key &= 0xFF; 2743 /* 2744 * Check for various keyboard errors 2745 */ 2746 if (key == LK_POWER_ERROR || key == LK_KDOWN_ERROR || 2747 key == LK_INPUT_ERROR || key == LK_OUTPUT_ERROR) { 2748 printf("qd%d: qdiint: Keyboard error, code = %x\n",qd,key); 2749 return; 2750 } 2751 2752 if (key < LK_LOWEST) 2753 return; 2754 2755 /* 2756 * See if its a state change key */ 2757 2758 switch (key) { 2759 2760 case LOCK: 2761 q_keyboard.lock ^= 0xffff; /* toggle */ 2762 if (q_keyboard.lock) 2763 led_control(qd, LK_LED_ENABLE, 2764 LK_LED_LOCK); 2765 else 2766 led_control(qd, LK_LED_DISABLE, 2767 LK_LED_LOCK); 2768 return; 2769 2770 case SHIFT: 2771 q_keyboard.shift ^= 0xFFFF; 2772 return; 2773 2774 case CNTRL: 2775 q_keyboard.cntrl ^= 0xFFFF; 2776 return; 2777 2778 case ALLUP: 2779 q_keyboard.cntrl = 0; 2780 q_keyboard.shift = 0; 2781 return; 2782 2783 case REPEAT: 2784 chr = q_keyboard.last; 2785 break; 2786 2787 /* 2788 * Test for cntrl characters. If set, see if the character 2789 * is elligible to become a control character. */ 2790 2791 default: 2792 2793 if (q_keyboard.cntrl) { 2794 chr = q_key[key]; 2795 if (chr >= ' ' && chr <= '~') 2796 chr &= 0x1F; 2797 else if (chr >= 0xA1 && chr <= 0xFE) 2798 chr &= 0x9F; 2799 } 2800 else if( q_keyboard.lock || q_keyboard.shift ) 2801 chr = q_shift_key[key]; 2802 else 2803 chr = q_key[key]; 2804 break; 2805 } 2806 2807 q_keyboard.last = chr; 2808 2809 /* 2810 * Check for special function keys */ 2811 2812 if (chr & 0x100) { 2813 char *string; 2814 string = q_special[chr & 0x7F]; 2815 while(*string) 2816 (*tp->t_linesw->l_rint)(*string++, tp); 2817 } 2818 else { 2819 #ifdef DDB 2820 /* Check for kernel debugger escape here */ 2821 int j; 2822 2823 j = kdbrint(chr&0177); 2824 2825 if (j == 1) /* Escape received, just return */ 2826 return; 2827 2828 if (j == 2) /* Second char wasn't 'D' */ 2829 (*tp->t_linesw->l_rint)(27, tp); 2830 #endif 2831 (*tp->t_linesw->l_rint)(chr&0177, tp); 2832 } 2833 } 2834 } 2835 } /* qdiint */ 2836 2837 /* 2838 * 2839 * Clear the QDSS screen 2840 * 2841 * >>> NOTE <<< 2842 * 2843 * This code requires that certain adder initialization be valid. To 2844 * assure that this requirement is satisfied, this routine should be 2845 * called only after calling the "setup_dragon()" function. 2846 * 2847 * Clear the bitmap a piece at a time. Since the fast scroll clear 2848 * only clears the current displayed portion of the bitmap put a 2849 * temporary value in the y limit register so we can access whole 2850 * bitmap 2851 * 2852 */ 2853 void 2854 clear_qd_screen(unit) 2855 int unit; 2856 { 2857 volatile struct adder *adder; 2858 adder = (struct adder *) qdmap[unit].adder; 2859 2860 adder->x_limit = 1024; 2861 adder->y_limit = 2048 - CHAR_HEIGHT; 2862 adder->y_offset_pending = 0; 2863 #define WSV (void)wait_status(adder, VSYNC); (void)wait_status(adder, VSYNC) 2864 WSV; 2865 adder->y_scroll_constant = SCROLL_ERASE; 2866 WSV; 2867 adder->y_offset_pending = 864; 2868 WSV; 2869 adder->y_scroll_constant = SCROLL_ERASE; 2870 WSV; 2871 adder->y_offset_pending = 1728; 2872 WSV; 2873 adder->y_scroll_constant = SCROLL_ERASE; 2874 WSV; 2875 adder->y_offset_pending = 0; /* back to normal */ 2876 WSV; 2877 adder->x_limit = MAX_SCREEN_X; 2878 adder->y_limit = MAX_SCREEN_Y + FONT_HEIGHT; 2879 #undef WSV 2880 2881 } /* clear_qd_screen */ 2882 2883 /* 2884 * kernel console output to the glass tty 2885 */ 2886 void 2887 qdcnputc(dev, chr) 2888 dev_t dev; 2889 int chr; 2890 { 2891 2892 /* 2893 * if system is now physical, forget it (ie: crash DUMP) 2894 */ 2895 if ((mfpr(PR_MAPEN) & 1) == 0) 2896 return; 2897 2898 blitc(0, (u_char)(chr & 0xff)); 2899 if ((chr & 0177) == '\n') 2900 blitc(0, '\r'); 2901 2902 } /* qdputc */ 2903 2904 /* 2905 * load the mouse cursor's template RAM bitmap 2906 */ 2907 void 2908 ldcursor(unit, bitmap) 2909 int unit; 2910 short *bitmap; 2911 { 2912 volatile struct dga *dga; 2913 volatile short *temp; 2914 int i; 2915 int curs; 2916 2917 dga = (struct dga *) qdmap[unit].dga; 2918 temp = (short *) qdmap[unit].template; 2919 2920 if (dga->csr & CURS_ENB) { /* if the cursor is enabled.. */ 2921 curs = -1; /* ..note that.. */ 2922 dga->csr &= ~CURS_ENB; /* ..and shut it off */ 2923 } else 2924 curs = 0; 2925 2926 dga->csr &= ~CURS_ENB; /* shut off the cursor */ 2927 2928 temp += (8 * 1024) - 32; /* cursor is 32 WORDS from the end */ 2929 /* ..of the 8k WORD template space */ 2930 for (i = 0; i < 32; ++i) 2931 *temp++ = *bitmap++; 2932 2933 if (curs) { /* if cursor was enabled.. */ 2934 dga->csr |= CURS_ENB; /* ..turn it back on */ 2935 } 2936 2937 } /* ldcursor */ 2938 2939 /* 2940 * Put the console font in the QDSS off-screen memory 2941 */ 2942 void 2943 ldfont(unit) 2944 int unit; 2945 { 2946 volatile struct adder *adder; 2947 2948 int i, j, k, max_chars_line; 2949 short packed; 2950 2951 adder = (struct adder *) qdmap[unit].adder; 2952 2953 /* 2954 * setup VIPER operand control registers 2955 */ 2956 write_ID(adder, MASK_1, 0xFFFF); 2957 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 255); 2958 write_ID(adder, VIPER_Z_LOAD | BACKGROUND_COLOR_Z, 0); 2959 2960 write_ID(adder, SRC1_OCR_B, 2961 EXT_NONE | INT_NONE | ID | BAR_SHIFT_DELAY); 2962 write_ID(adder, SRC2_OCR_B, 2963 EXT_NONE | INT_NONE | ID | BAR_SHIFT_DELAY); 2964 write_ID(adder, DST_OCR_B, 2965 EXT_SOURCE | INT_NONE | NO_ID | NO_BAR_SHIFT_DELAY); 2966 2967 adder->rasterop_mode = DST_WRITE_ENABLE | DST_INDEX_ENABLE | NORMAL; 2968 2969 /* 2970 * load destination data 2971 */ 2972 (void)wait_status(adder, RASTEROP_COMPLETE); 2973 2974 adder->destination_x = FONT_X; 2975 adder->destination_y = FONT_Y; 2976 #if FONT_WIDTH > MAX_SCREEN_X 2977 adder->fast_dest_dx = MAX_SCREEN_X; 2978 #else 2979 adder->fast_dest_dx = FONT_WIDTH; 2980 #endif 2981 adder->slow_dest_dy = CHAR_HEIGHT; 2982 2983 /* 2984 * setup for processor to bitmap xfer */ 2985 2986 write_ID(adder, CS_UPDATE_MASK, 0x0001); 2987 adder->cmd = PBT | OCRB | 2 | DTE | 2; 2988 2989 /* 2990 * Figure out how many characters can be stored on one "line" of 2991 * offscreen memory. 2992 */ 2993 max_chars_line = MAX_SCREEN_X/(CHAR_WIDTH*2); 2994 if ((CHARS/2 + CHARS%2) < max_chars_line) 2995 max_chars_line = CHARS/2 + CHARS%2; 2996 2997 /* 2998 * iteratively do the processor to bitmap xfer */ 2999 3000 for (i = 0; i < ROWS; ++i) { 3001 3002 /* PTOB a scan line */ 3003 3004 for (j = 0, k = i; j < max_chars_line; ++j) { 3005 /* PTOB one scan of a char cell */ 3006 3007 packed = q_font[k]; 3008 k += ROWS; 3009 packed |= ((short)q_font[k] << 8); 3010 k += ROWS; 3011 3012 (void)wait_status(adder, TX_READY); 3013 adder->id_data = packed; 3014 } 3015 } 3016 3017 /* 3018 * (XXX XXX XXX - should remove) 3019 * 3020 * Copy the second row of characters. Subtract the first 3021 * row from the total number. Divide this quantity by 2 3022 * because 2 chars are stored in a short in the PTOB loop 3023 * below. Figure out how many characters can be stored on 3024 * one "line" of offscreen memory 3025 */ 3026 3027 max_chars_line = MAX_SCREEN_X/(CHAR_WIDTH*2); 3028 if ((CHARS/2 + CHARS%2) < max_chars_line) 3029 return; 3030 max_chars_line = (CHARS/2 + CHARS%2) - max_chars_line; /* 95 - 64 */ 3031 /* Paranoia check to see if 3rd row may be needed */ 3032 if (max_chars_line > (MAX_SCREEN_X/(CHAR_WIDTH*2))) 3033 max_chars_line = MAX_SCREEN_X/(CHAR_WIDTH*2); 3034 3035 adder->destination_x = FONT_X; 3036 adder->destination_y = FONT_Y - CHAR_HEIGHT; 3037 adder->fast_dest_dx = max_chars_line * CHAR_WIDTH * 2; 3038 adder->slow_dest_dy = CHAR_HEIGHT; 3039 3040 /* 3041 * setup for processor to bitmap xfer 3042 */ 3043 write_ID(adder, CS_UPDATE_MASK, 0x0001); 3044 adder->cmd = PBT | OCRB | 2 | DTE | 2; 3045 3046 /* 3047 * iteratively do the processor to bitmap xfer 3048 */ 3049 for (i = 0; i < ROWS; ++i) { 3050 /* 3051 * PTOB a scan line 3052 */ 3053 for (j = 0, k = i; j < max_chars_line; ++j) { 3054 /* 3055 * PTOB one scan of a char cell 3056 */ 3057 packed = q_font[k + FONT_OFFSET]; 3058 k += ROWS; 3059 packed |= ((short)q_font[k + FONT_OFFSET] << 8); 3060 k += ROWS; 3061 (void)wait_status(adder, TX_READY); 3062 adder->id_data = packed; 3063 } 3064 } 3065 3066 } /* ldfont */ 3067 3068 3069 /* 3070 * Disable or enable polling. This is used when entering or leaving the 3071 * kernel debugger. 3072 */ 3073 void 3074 qdcnpollc(dev, onoff) 3075 dev_t dev; 3076 int onoff; 3077 { 3078 qdpolling = onoff; 3079 } 3080 3081 3082 /* 3083 * Get a character from the LK201 (polled) 3084 */ 3085 int 3086 qdcngetc(dev) 3087 dev_t dev; 3088 { 3089 short key; 3090 char chr; 3091 volatile struct duart *duart; 3092 3093 duart = (struct duart *) qdmap[0].duart; 3094 3095 /* 3096 * Get a character from the keyboard. 3097 */ 3098 LOOP: 3099 while (!(duart->statusA&RCV_RDY)) 3100 ; 3101 3102 key = duart->dataA; 3103 key &= 0xFF; 3104 3105 /* 3106 * Check for various keyboard errors */ 3107 3108 if (key == LK_POWER_ERROR || key == LK_KDOWN_ERROR || 3109 key == LK_INPUT_ERROR || key == LK_OUTPUT_ERROR) { 3110 printf("Keyboard error, code = %x\n", key); 3111 return(0); 3112 } 3113 3114 if (key < LK_LOWEST) 3115 return(0); 3116 3117 /* 3118 * See if its a state change key 3119 */ 3120 switch (key) { 3121 3122 case LOCK: 3123 q_keyboard.lock ^= 0xffff; /* toggle */ 3124 if (q_keyboard.lock) 3125 led_control(0, LK_LED_ENABLE, LK_LED_LOCK); 3126 else 3127 led_control(0, LK_LED_DISABLE, LK_LED_LOCK); 3128 goto LOOP; 3129 3130 case SHIFT: 3131 q_keyboard.shift ^= 0xFFFF; 3132 goto LOOP; 3133 3134 case CNTRL: 3135 q_keyboard.cntrl ^= 0xFFFF; 3136 goto LOOP; 3137 3138 case ALLUP: 3139 q_keyboard.cntrl = 0; 3140 q_keyboard.shift = 0; 3141 goto LOOP; 3142 3143 case REPEAT: 3144 chr = q_keyboard.last; 3145 break; 3146 3147 /* 3148 * Test for cntrl characters. If set, see if the character 3149 * is elligible to become a control character. 3150 */ 3151 default: 3152 3153 if (q_keyboard.cntrl) { 3154 chr = q_key[key]; 3155 if (chr >= ' ' && chr <= '~') 3156 chr &= 0x1F; 3157 } 3158 else if ( q_keyboard.lock || q_keyboard.shift ) 3159 chr = q_shift_key[key]; 3160 else 3161 chr = q_key[key]; 3162 break; 3163 } 3164 3165 if (chr < ' ' && chr > '~') /* if input is non-displayable */ 3166 return(0); /* ..then pitch it! */ 3167 3168 q_keyboard.last = chr; 3169 3170 /* 3171 * Check for special function keys */ 3172 3173 if (chr & 0x80) /* pitch the function keys */ 3174 return(0); 3175 else 3176 return(chr); 3177 3178 } /* qdgetc */ 3179 3180 /* 3181 * led_control()... twiddle LK-201 LED's 3182 */ 3183 void 3184 led_control(unit, cmd, led_mask) 3185 int unit, cmd, led_mask; 3186 { 3187 int i; 3188 volatile struct duart *duart; 3189 3190 duart = (struct duart *)qdmap[unit].duart; 3191 3192 for (i = 1000; i > 0; --i) { 3193 if (duart->statusA&XMT_RDY) { 3194 duart->dataA = cmd; 3195 break; 3196 } 3197 } 3198 for (i = 1000; i > 0; --i) { 3199 if (duart->statusA&XMT_RDY) { 3200 duart->dataA = led_mask; 3201 break; 3202 } 3203 } 3204 return; 3205 3206 } /* led_control */ 3207 3208 /* 3209 * scroll_up()... move the screen up one character height 3210 */ 3211 void 3212 scroll_up(adder) 3213 volatile struct adder *adder; 3214 { 3215 /* 3216 * setup VIPER operand control registers 3217 */ 3218 (void)wait_status(adder, ADDRESS_COMPLETE); 3219 write_ID(adder, CS_UPDATE_MASK, 0x00FF); /* select all planes */ 3220 write_ID(adder, MASK_1, 0xFFFF); 3221 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 255); 3222 write_ID(adder, VIPER_Z_LOAD | BACKGROUND_COLOR_Z, 0); 3223 write_ID(adder, SRC1_OCR_B, 3224 EXT_NONE | INT_SOURCE | ID | BAR_SHIFT_DELAY); 3225 write_ID(adder, DST_OCR_B, 3226 EXT_NONE | INT_NONE | NO_ID | NO_BAR_SHIFT_DELAY); 3227 /* 3228 * load DESTINATION origin and vectors 3229 */ 3230 adder->fast_dest_dy = 0; 3231 adder->slow_dest_dx = 0; 3232 adder->error_1 = 0; 3233 adder->error_2 = 0; 3234 adder->rasterop_mode = DST_WRITE_ENABLE | NORMAL; 3235 adder->destination_x = 0; 3236 adder->fast_dest_dx = 1024; 3237 adder->destination_y = 0; 3238 adder->slow_dest_dy = 864 - CHAR_HEIGHT; 3239 /* 3240 * load SOURCE origin and vectors 3241 */ 3242 adder->source_1_x = 0; 3243 adder->source_1_dx = 1024; 3244 adder->source_1_y = 0 + CHAR_HEIGHT; 3245 adder->source_1_dy = 864 - CHAR_HEIGHT; 3246 write_ID(adder, LU_FUNCTION_R1, FULL_SRC_RESOLUTION | LF_SOURCE); 3247 adder->cmd = RASTEROP | OCRB | 0 | S1E | DTE; 3248 /* 3249 * do a rectangle clear of last screen line 3250 */ 3251 write_ID(adder, MASK_1, 0xffff); 3252 write_ID(adder, SOURCE, 0xffff); 3253 write_ID(adder,DST_OCR_B, 3254 (EXT_NONE | INT_NONE | NO_ID | NO_BAR_SHIFT_DELAY)); 3255 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 0); 3256 adder->error_1 = 0; 3257 adder->error_2 = 0; 3258 adder->slow_dest_dx = 0; /* set up the width of */ 3259 adder->slow_dest_dy = CHAR_HEIGHT; /* rectangle */ 3260 adder->rasterop_mode = (NORMAL | DST_WRITE_ENABLE) ; 3261 (void)wait_status(adder, RASTEROP_COMPLETE); 3262 adder->destination_x = 0; 3263 adder->destination_y = 864 - CHAR_HEIGHT; 3264 adder->fast_dest_dx = 1024; /* set up the height */ 3265 adder->fast_dest_dy = 0; /* of rectangle */ 3266 write_ID(adder, LU_FUNCTION_R2, (FULL_SRC_RESOLUTION | LF_SOURCE)); 3267 adder->cmd = (RASTEROP | OCRB | LF_R2 | DTE ) ; 3268 3269 } /* scroll_up */ 3270 3271 /* 3272 * init shared memory pointers and structures 3273 */ 3274 void 3275 init_shared(unit) 3276 int unit; 3277 { 3278 volatile struct dga *dga; 3279 3280 dga = (struct dga *) qdmap[unit].dga; 3281 3282 /* 3283 * initialize the event queue pointers and header */ 3284 3285 eq_header[unit] = (struct qdinput *) 3286 ((((int)event_shared & ~(0x01FF)) + 512) 3287 + (EVENT_BUFSIZE * unit)); 3288 eq_header[unit]->curs_pos.x = 0; 3289 eq_header[unit]->curs_pos.y = 0; 3290 dga->x_cursor = TRANX(eq_header[unit]->curs_pos.x); 3291 dga->y_cursor = TRANY(eq_header[unit]->curs_pos.y); 3292 eq_header[unit]->curs_box.left = 0; 3293 eq_header[unit]->curs_box.right = 0; 3294 eq_header[unit]->curs_box.top = 0; 3295 eq_header[unit]->curs_box.bottom = 0; 3296 /* 3297 * assign a pointer to the DMA I/O buffer for this QDSS. 3298 */ 3299 DMAheader[unit] = (struct DMAreq_header *) 3300 (((int)(&DMA_shared[0] + 512) & ~0x1FF) 3301 + (DMAbuf_size * unit)); 3302 DMAheader[unit]->DMAreq = (struct DMAreq *) ((int)DMAheader[unit] 3303 + sizeof(struct DMAreq_header)); 3304 DMAheader[unit]->QBAreg = 0; 3305 DMAheader[unit]->status = 0; 3306 DMAheader[unit]->shared_size = DMAbuf_size; 3307 DMAheader[unit]->used = 0; 3308 DMAheader[unit]->size = 10; /* default = 10 requests */ 3309 DMAheader[unit]->oldest = 0; 3310 DMAheader[unit]->newest = 0; 3311 /* 3312 * assign a pointer to the scroll structure for this QDSS. 3313 */ 3314 scroll[unit] = (struct scroll *) 3315 (((int)(&scroll_shared[0] + 512) & ~0x1FF) 3316 + (sizeof(struct scroll) * unit)); 3317 scroll[unit]->status = 0; 3318 scroll[unit]->viper_constant = 0; 3319 scroll[unit]->y_scroll_constant = 0; 3320 scroll[unit]->y_offset = 0; 3321 scroll[unit]->x_index_pending = 0; 3322 scroll[unit]->y_index_pending = 0; 3323 /* 3324 * assign a pointer to the color map write buffer for this QDSS 3325 */ 3326 color_buf[unit] = (struct color_buf *) 3327 (((int)(&color_shared[0] + 512) & ~0x1FF) 3328 + (COLOR_BUFSIZ * unit)); 3329 color_buf[unit]->status = 0; 3330 color_buf[unit]->count = 0; 3331 3332 } /* init_shared */ 3333 3334 /* 3335 * init the ADDER, VIPER, bitmaps, & color map 3336 */ 3337 void 3338 setup_dragon(unit) 3339 int unit; 3340 { 3341 3342 volatile struct adder *adder; 3343 volatile struct dga *dga; 3344 volatile short *memcsr; 3345 int i; 3346 short top; /* clipping/scrolling boundaries */ 3347 short bottom; 3348 short right; 3349 short left; 3350 volatile short *red; /* color map pointers */ 3351 volatile short *green; 3352 volatile short *blue; 3353 3354 /* 3355 * init for setup 3356 */ 3357 adder = (struct adder *) qdmap[unit].adder; 3358 dga = (struct dga *) qdmap[unit].dga; 3359 memcsr = (short *) qdmap[unit].memcsr; 3360 dga->csr &= ~(DMA_IE | 0x700); /* halt DMA and kill the intrpts */ 3361 *memcsr = SYNC_ON; /* blank screen and turn off LED's */ 3362 adder->command = CANCEL; 3363 /* 3364 * set monitor timing 3365 */ 3366 adder->x_scan_count_0 = 0x2800; 3367 adder->x_scan_count_1 = 0x1020; 3368 adder->x_scan_count_2 = 0x003A; 3369 adder->x_scan_count_3 = 0x38F0; 3370 adder->x_scan_count_4 = 0x6128; 3371 adder->x_scan_count_5 = 0x093A; 3372 adder->x_scan_count_6 = 0x313C; 3373 adder->sync_phase_adj = 0x0100; 3374 adder->x_scan_conf = 0x00C8; 3375 /* 3376 * got a bug in secound pass ADDER! lets take care of it 3377 * 3378 * normally, just use the code in the following bug fix code, but to 3379 * make repeated demos look pretty, load the registers as if there was 3380 * no bug and then test to see if we are getting sync 3381 */ 3382 adder->y_scan_count_0 = 0x135F; 3383 adder->y_scan_count_1 = 0x3363; 3384 adder->y_scan_count_2 = 0x2366; 3385 adder->y_scan_count_3 = 0x0388; 3386 /* 3387 * if no sync, do the bug fix code 3388 */ 3389 if (wait_status(adder, VSYNC) == BAD) { 3390 /* first load all Y scan registers with very short frame and 3391 * wait for scroll service. This guarantees at least one SYNC 3392 * to fix the pass 2 Adder initialization bug (synchronizes 3393 * XCINCH with DMSEEDH) 3394 */ 3395 adder->y_scan_count_0 = 0x01; 3396 adder->y_scan_count_1 = 0x01; 3397 adder->y_scan_count_2 = 0x01; 3398 adder->y_scan_count_3 = 0x01; 3399 /* 3400 * delay at least 1 full frame time 3401 */ 3402 (void)wait_status(adder, VSYNC); 3403 (void)wait_status(adder, VSYNC); 3404 /* 3405 * now load the REAL sync values (in reverse order just to 3406 * be safe. 3407 */ 3408 adder->y_scan_count_3 = 0x0388; 3409 adder->y_scan_count_2 = 0x2366; 3410 adder->y_scan_count_1 = 0x3363; 3411 adder->y_scan_count_0 = 0x135F; 3412 } 3413 *memcsr = SYNC_ON | UNBLANK; /* turn off leds and turn on video */ 3414 /* 3415 * zero the index registers 3416 */ 3417 adder->x_index_pending = 0; 3418 adder->y_index_pending = 0; 3419 adder->x_index_new = 0; 3420 adder->y_index_new = 0; 3421 adder->x_index_old = 0; 3422 adder->y_index_old = 0; 3423 adder->pause = 0; 3424 /* 3425 * set rasterop mode to normal pen down 3426 */ 3427 adder->rasterop_mode = DST_WRITE_ENABLE | DST_INDEX_ENABLE | NORMAL; 3428 /* 3429 * set the rasterop registers to a default values 3430 */ 3431 adder->source_1_dx = 1; 3432 adder->source_1_dy = 1; 3433 adder->source_1_x = 0; 3434 adder->source_1_y = 0; 3435 adder->destination_x = 0; 3436 adder->destination_y = 0; 3437 adder->fast_dest_dx = 1; 3438 adder->fast_dest_dy = 0; 3439 adder->slow_dest_dx = 0; 3440 adder->slow_dest_dy = 1; 3441 adder->error_1 = 0; 3442 adder->error_2 = 0; 3443 /* 3444 * scale factor = UNITY 3445 */ 3446 adder->fast_scale = UNITY; 3447 adder->slow_scale = UNITY; 3448 /* 3449 * set the source 2 parameters 3450 */ 3451 adder->source_2_x = 0; 3452 adder->source_2_y = 0; 3453 adder->source_2_size = 0x0022; 3454 /* 3455 * initialize plane addresses for eight vipers 3456 */ 3457 write_ID(adder, CS_UPDATE_MASK, 0x0001); 3458 write_ID(adder, PLANE_ADDRESS, 0x0000); 3459 write_ID(adder, CS_UPDATE_MASK, 0x0002); 3460 write_ID(adder, PLANE_ADDRESS, 0x0001); 3461 write_ID(adder, CS_UPDATE_MASK, 0x0004); 3462 write_ID(adder, PLANE_ADDRESS, 0x0002); 3463 write_ID(adder, CS_UPDATE_MASK, 0x0008); 3464 write_ID(adder, PLANE_ADDRESS, 0x0003); 3465 write_ID(adder, CS_UPDATE_MASK, 0x0010); 3466 write_ID(adder, PLANE_ADDRESS, 0x0004); 3467 write_ID(adder, CS_UPDATE_MASK, 0x0020); 3468 write_ID(adder, PLANE_ADDRESS, 0x0005); 3469 write_ID(adder, CS_UPDATE_MASK, 0x0040); 3470 write_ID(adder, PLANE_ADDRESS, 0x0006); 3471 write_ID(adder, CS_UPDATE_MASK, 0x0080); 3472 write_ID(adder, PLANE_ADDRESS, 0x0007); 3473 /* 3474 * initialize the external registers. 3475 */ 3476 write_ID(adder, CS_UPDATE_MASK, 0x00FF); 3477 write_ID(adder, CS_SCROLL_MASK, 0x00FF); 3478 /* 3479 * initialize resolution mode 3480 */ 3481 write_ID(adder, MEMORY_BUS_WIDTH, 0x000C); /* bus width = 16 */ 3482 write_ID(adder, RESOLUTION_MODE, 0x0000); /* one bit/pixel */ 3483 /* 3484 * initialize viper registers 3485 */ 3486 write_ID(adder, SCROLL_CONSTANT, SCROLL_ENABLE|VIPER_LEFT|VIPER_UP); 3487 write_ID(adder, SCROLL_FILL, 0x0000); 3488 /* 3489 * set clipping and scrolling limits to full screen 3490 */ 3491 for (i = 1000, adder->status = 0; 3492 i > 0 && !(adder->status&ADDRESS_COMPLETE); --i) 3493 ; 3494 if (i == 0) 3495 printf("qd%d: setup_dragon: timeout on ADDRESS_COMPLETE\n",unit); 3496 top = 0; 3497 bottom = 2048; 3498 left = 0; 3499 right = 1024; 3500 adder->x_clip_min = left; 3501 adder->x_clip_max = right; 3502 adder->y_clip_min = top; 3503 adder->y_clip_max = bottom; 3504 adder->scroll_x_min = left; 3505 adder->scroll_x_max = right; 3506 adder->scroll_y_min = top; 3507 adder->scroll_y_max = bottom; 3508 (void)wait_status(adder, VSYNC); /* wait at LEAST 1 full frame */ 3509 (void)wait_status(adder, VSYNC); 3510 adder->x_index_pending = left; 3511 adder->y_index_pending = top; 3512 adder->x_index_new = left; 3513 adder->y_index_new = top; 3514 adder->x_index_old = left; 3515 adder->y_index_old = top; 3516 3517 for (i = 1000, adder->status = 0; i > 0 && 3518 !(adder->status&ADDRESS_COMPLETE) ; --i) 3519 ; 3520 if (i == 0) 3521 printf("qd%d: setup_dragon: timeout on ADDRESS_COMPLETE\n",unit); 3522 3523 write_ID(adder, LEFT_SCROLL_MASK, 0x0000); 3524 write_ID(adder, RIGHT_SCROLL_MASK, 0x0000); 3525 /* 3526 * set source and the mask register to all ones (ie: white) o 3527 */ 3528 write_ID(adder, SOURCE, 0xFFFF); 3529 write_ID(adder, MASK_1, 0xFFFF); 3530 write_ID(adder, VIPER_Z_LOAD | FOREGROUND_COLOR_Z, 255); 3531 write_ID(adder, VIPER_Z_LOAD | BACKGROUND_COLOR_Z, 0); 3532 /* 3533 * initialize Operand Control Register banks for fill command 3534 */ 3535 write_ID(adder, SRC1_OCR_A, EXT_NONE | INT_M1_M2 | NO_ID | WAIT); 3536 write_ID(adder, SRC2_OCR_A, EXT_NONE | INT_SOURCE | NO_ID | NO_WAIT); 3537 write_ID(adder, DST_OCR_A, EXT_NONE | INT_NONE | NO_ID | NO_WAIT); 3538 write_ID(adder, SRC1_OCR_B, EXT_NONE | INT_SOURCE | NO_ID | WAIT); 3539 write_ID(adder, SRC2_OCR_B, EXT_NONE | INT_M1_M2 | NO_ID | NO_WAIT); 3540 write_ID(adder, DST_OCR_B, EXT_NONE | INT_NONE | NO_ID | NO_WAIT); 3541 /* 3542 * init Logic Unit Function registers, (these are just common values, 3543 * and may be changed as required). 3544 */ 3545 write_ID(adder, LU_FUNCTION_R1, FULL_SRC_RESOLUTION | LF_SOURCE); 3546 write_ID(adder, LU_FUNCTION_R2, FULL_SRC_RESOLUTION | LF_SOURCE | 3547 INV_M1_M2); 3548 write_ID(adder, LU_FUNCTION_R3, FULL_SRC_RESOLUTION | LF_D_OR_S); 3549 write_ID(adder, LU_FUNCTION_R4, FULL_SRC_RESOLUTION | LF_D_XOR_S); 3550 /* 3551 * load the color map for black & white 3552 */ 3553 for (i = 0, adder->status = 0; i < 10000 && !(adder->status&VSYNC); ++i) 3554 ; 3555 3556 if (i == 0) 3557 printf("qd%d: setup_dragon: timeout on VSYNC\n", unit); 3558 3559 red = (short *) qdmap[unit].red; 3560 green = (short *) qdmap[unit].green; 3561 blue = (short *) qdmap[unit].blue; 3562 3563 *red++ = 0x00; /* black */ 3564 *green++ = 0x00; 3565 *blue++ = 0x00; 3566 3567 *red-- = 0xFF; /* white */ 3568 *green-- = 0xFF; 3569 *blue-- = 0xFF; 3570 3571 /* 3572 * set color map for mouse cursor 3573 */ 3574 3575 red += 254; 3576 green += 254; 3577 blue += 254; 3578 3579 *red++ = 0x00; /* black */ 3580 *green++ = 0x00; 3581 *blue++ = 0x00; 3582 3583 *red = 0xFF; /* white */ 3584 *green = 0xFF; 3585 *blue = 0xFF; 3586 3587 } /* setup_dragon */ 3588 3589 /* 3590 * Init the DUART and set defaults in input 3591 */ 3592 void 3593 setup_input(unit) 3594 int unit; 3595 { 3596 volatile struct duart *duart; /* DUART register structure pointer */ 3597 int i, bits; 3598 char id_byte; 3599 3600 duart = (struct duart *) qdmap[unit].duart; 3601 duart->imask = 0; 3602 3603 /* 3604 * setup the DUART for kbd & pointing device 3605 */ 3606 duart->cmdA = RESET_M; /* reset mode reg ptr for kbd */ 3607 duart->modeA = 0x13; /* 8 bits, no parity, rcv IE, */ 3608 /* no RTS control,char error mode */ 3609 duart->modeA = 0x07; /* 1 stop bit,CTS does not IE XMT */ 3610 /* no RTS control,no echo or loop */ 3611 duart->cmdB = RESET_M; /* reset mode reg pntr for host */ 3612 duart->modeB = 0x07; /* 8 bits, odd parity, rcv IE.. */ 3613 /* ..no RTS cntrl, char error mode */ 3614 duart->modeB = 0x07; /* 1 stop bit,CTS does not IE XMT */ 3615 /* no RTS control,no echo or loop */ 3616 duart->auxctl = 0x00; /* baud rate set 1 */ 3617 duart->clkselA = 0x99; /* 4800 baud for kbd */ 3618 duart->clkselB = 0x99; /* 4800 baud for mouse */ 3619 3620 /* reset everything for keyboard */ 3621 3622 for (bits = RESET_M; bits < START_BREAK; bits += 0x10) 3623 duart->cmdA = bits; 3624 3625 /* reset everything for host */ 3626 3627 for (bits = RESET_M; bits < START_BREAK; bits += 0x10) 3628 duart->cmdB = bits; 3629 3630 duart->cmdA = EN_RCV | EN_XMT; /* enbl xmt & rcv for kbd */ 3631 duart->cmdB = EN_RCV | EN_XMT; /* enbl xmt & rcv for pointer device */ 3632 3633 /* 3634 * init keyboard defaults (DUART channel A) 3635 */ 3636 for (i = 500; i > 0; --i) { 3637 if (duart->statusA&XMT_RDY) { 3638 duart->dataA = LK_DEFAULTS; 3639 break; 3640 } 3641 } 3642 3643 for (i = 100000; i > 0; --i) { 3644 if (duart->statusA&RCV_RDY) { 3645 break; 3646 } 3647 } 3648 3649 if (duart->dataA) /* flush the ACK */ 3650 ; 3651 3652 /* 3653 * identify the pointing device 3654 */ 3655 for (i = 500; i > 0; --i) { 3656 if (duart->statusB&XMT_RDY) { 3657 duart->dataB = SELF_TEST; 3658 break; 3659 } 3660 } 3661 3662 /* 3663 * wait for 1st byte of self test report */ 3664 3665 for (i = 100000; i > 0; --i) { 3666 if (duart->statusB&RCV_RDY) { 3667 break; 3668 } 3669 } 3670 3671 if (i == 0) { 3672 printf("qd[%d]: setup_input: timeout on 1st byte of self test\n" 3673 ,unit); 3674 goto OUT; 3675 } 3676 3677 if (duart->dataB) 3678 ; 3679 3680 /* 3681 * wait for ID byte of self test report 3682 */ 3683 for (i = 100000; i > 0; --i) { 3684 if (duart->statusB&RCV_RDY) { 3685 break; 3686 } 3687 } 3688 3689 if (i == 0) { 3690 printf("qd[%d]: setup_input: timeout on 2nd byte of self test\n", unit); 3691 goto OUT; 3692 } 3693 3694 id_byte = duart->dataB; 3695 3696 /* 3697 * wait for other bytes to come in 3698 */ 3699 for (i = 100000; i > 0; --i) { 3700 if (duart->statusB & RCV_RDY) { 3701 if (duart->dataB) 3702 ; 3703 break; 3704 } 3705 } 3706 if (i == 0) { 3707 printf("qd[%d]: setup_input: timeout on 3rd byte of self test\n", unit); 3708 goto OUT; 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 4th byte of self test\n", unit); 3719 goto OUT; 3720 } 3721 /* 3722 * flag pointing device type and set defaults 3723 */ 3724 for (i=100000; i>0; --i) 3725 ; /*XXX*/ 3726 3727 if ((id_byte & 0x0F) != TABLET_ID) { 3728 qdflags[unit].pntr_id = MOUSE_ID; 3729 3730 for (i = 500; i > 0; --i) { 3731 if (duart->statusB&XMT_RDY) { 3732 duart->dataB = INC_STREAM_MODE; 3733 break; 3734 } 3735 } 3736 } 3737 else { 3738 qdflags[unit].pntr_id = TABLET_ID; 3739 3740 for (i = 500; i > 0; --i) { 3741 if (duart->statusB&XMT_RDY) { 3742 duart->dataB = T_STREAM; 3743 break; 3744 } 3745 } 3746 } 3747 OUT: 3748 duart->imask = qdflags[unit].duart_imask; 3749 3750 } /* setup_input */ 3751 3752 /* 3753 * delay for at least one display frame time 3754 * 3755 * return: BAD means that we timed out without ever seeing the 3756 * vertical sync status bit 3757 * GOOD otherwise 3758 */ 3759 int 3760 wait_status(adder, mask) 3761 volatile struct adder *adder; 3762 int mask; 3763 { 3764 int i; 3765 3766 for (i = 10000, adder->status = 0 ; i > 0 && 3767 !(adder->status&mask) ; --i) 3768 ; 3769 3770 if (i == 0) { 3771 printf("wait_status: timeout polling for 0x%x in adder->status\n", mask); 3772 return(BAD); 3773 } 3774 3775 return(GOOD); 3776 3777 } /* wait_status */ 3778 3779 /* 3780 * write out onto the ID bus 3781 */ 3782 void 3783 write_ID(adder, adrs, data) 3784 volatile struct adder *adder; 3785 short adrs; 3786 short data; 3787 { 3788 int i; 3789 3790 for (i = 100000, adder->status = 0 ; 3791 i > 0 && !(adder->status&ADDRESS_COMPLETE) ; --i) 3792 ; 3793 3794 if (i == 0) 3795 goto ERR; 3796 3797 for (i = 100000, adder->status = 0 ; 3798 i > 0 && !(adder->status&TX_READY) ; --i) 3799 ; 3800 3801 if (i > 0) { 3802 adder->id_data = data; 3803 adder->command = ID_LOAD | adrs; 3804 return ; 3805 } 3806 3807 ERR: 3808 printf("write_ID: timeout trying to write to VIPER\n"); 3809 return ; 3810 3811 } /* write_ID */ 3812
Indexes created Tue Sep 30 10:09:55 GMT 2025