tfb.c revision 1.39
1 /* $NetBSD: tfb.c,v 1.39 2003/06/29 15:07:10 simonb Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 1999 Tohru Nishimura. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Tohru Nishimura 17 * for the NetBSD Project. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: tfb.c,v 1.39 2003/06/29 15:07:10 simonb Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/kernel.h> 39 #include <sys/device.h> 40 #include <sys/malloc.h> 41 #include <sys/buf.h> 42 #include <sys/ioctl.h> 43 44 #include <machine/bus.h> 45 #include <machine/intr.h> 46 47 #include <dev/wscons/wsconsio.h> 48 #include <dev/wscons/wsdisplayvar.h> 49 50 #include <dev/rasops/rasops.h> 51 #include <dev/wsfont/wsfont.h> 52 53 #include <dev/tc/tcvar.h> 54 #include <dev/ic/bt463reg.h> 55 #include <dev/ic/bt431reg.h> 56 57 #include <uvm/uvm_extern.h> 58 59 #if defined(pmax) 60 #define machine_btop(x) mips_btop(MIPS_KSEG1_TO_PHYS(x)) 61 62 /* 63 * struct bt463reg { 64 * u_int8_t bt_lo; 65 * unsigned : 24; 66 * u_int8_t bt_hi; 67 * unsigned : 24; 68 * u_int8_t bt_reg; 69 * unsigned : 24; 70 * u_int8_t bt_cmap; 71 * }; 72 * 73 * N.B. a pair of Bt431s are located adjascently. 74 * struct bt431twin { 75 * struct { 76 * u_int8_t u0; for sprite mask 77 * u_int8_t u1; for sprite image 78 * unsigned :16; 79 * } bt_lo; 80 * ... 81 * 82 * struct bt431reg { 83 * u_int16_t bt_lo; 84 * unsigned : 16; 85 * u_int16_t bt_hi; 86 * unsigned : 16; 87 * u_int16_t bt_ram; 88 * unsigned : 16; 89 * u_int16_t bt_ctl; 90 * }; 91 */ 92 93 #define BYTE(base, index) *((u_int8_t *)(base) + ((index)<<2)) 94 #define HALF(base, index) *((u_int16_t *)(base) + ((index)<<1)) 95 96 #endif 97 98 #if defined(alpha) 99 #define machine_btop(x) alpha_btop(ALPHA_K0SEG_TO_PHYS(x)) 100 101 /* 102 * struct bt463reg { 103 * u_int32_t bt_lo; 104 * u_int32_t bt_hi; 105 * u_int32_t bt_reg; 106 * u_int32_t bt_cmap; 107 * }; 108 * 109 * struct bt431reg { 110 * u_int32_t bt_lo; 111 * u_int32_t bt_hi; 112 * u_int32_t bt_ram; 113 * u_int32_t bt_ctl; 114 * }; 115 */ 116 117 #define BYTE(base, index) *((u_int32_t *)(base) + (index)) 118 #define HALF(base, index) *((u_int32_t *)(base) + (index)) 119 120 #endif 121 122 /* Bt463 hardware registers */ 123 #define bt_lo 0 124 #define bt_hi 1 125 #define bt_reg 2 126 #define bt_cmap 3 127 128 /* Bt431 hardware registers */ 129 #define bt_ram 2 130 #define bt_ctl 3 131 132 #define SELECT463(vdac, regno) do { \ 133 BYTE(vdac, bt_lo) = (regno) & 0x00ff; \ 134 BYTE(vdac, bt_hi) = ((regno)& 0xff00) >> 8; \ 135 tc_wmb(); \ 136 } while (0) 137 138 #define TWIN(x) ((x) | ((x) << 8)) 139 #define TWIN_LO(x) (twin = (x) & 0x00ff, (twin << 8) | twin) 140 #define TWIN_HI(x) (twin = (x) & 0xff00, twin | (twin >> 8)) 141 142 #define SELECT431(curs, regno) do { \ 143 HALF(curs, bt_lo) = TWIN(regno);\ 144 HALF(curs, bt_hi) = 0; \ 145 tc_wmb(); \ 146 } while (0) 147 148 struct hwcmap256 { 149 #define CMAP_SIZE 256 /* R/G/B entries */ 150 u_int8_t r[CMAP_SIZE]; 151 u_int8_t g[CMAP_SIZE]; 152 u_int8_t b[CMAP_SIZE]; 153 }; 154 155 struct hwcursor64 { 156 struct wsdisplay_curpos cc_pos; 157 struct wsdisplay_curpos cc_hot; 158 struct wsdisplay_curpos cc_size; 159 struct wsdisplay_curpos cc_magic; 160 #define CURSOR_MAX_SIZE 64 161 u_int8_t cc_color[6]; 162 u_int64_t cc_image[64 + 64]; 163 }; 164 165 struct tfb_softc { 166 struct device sc_dev; 167 vaddr_t sc_vaddr; 168 size_t sc_size; 169 struct rasops_info *sc_ri; 170 struct hwcmap256 sc_cmap; /* software copy of colormap */ 171 struct hwcursor64 sc_cursor; /* software copy of cursor */ 172 int sc_blanked; /* video visibility disabled */ 173 int sc_curenb; /* cursor sprite enabled */ 174 int sc_changed; /* need update of hardware */ 175 #define WSDISPLAY_CMAP_DOLUT 0x20 176 int nscreens; 177 }; 178 179 #define TX_MAGIC_X 360 180 #define TX_MAGIC_Y 36 181 182 #define TX_BT463_OFFSET 0x040000 183 #define TX_BT431_OFFSET 0x040010 184 #define TX_CONTROL 0x040030 185 #define TX_MAP_REGISTER 0x040030 186 #define TX_PIP_OFFSET 0x0800c0 187 #define TX_SELECTION 0x100000 188 #define TX_8BPP_OFFSET 0x200000 189 #define TX_8BPP_SIZE 0x200000 190 #define TX_24BPP_OFFSET 0x400000 191 #define TX_24BPP_SIZE 0x600000 192 #define TX_VIDEO_ENABLE 0xa00000 193 194 #define TX_CTL_VIDEO_ON 0x80 195 #define TX_CTL_INT_ENA 0x40 196 #define TX_CTL_INT_PEND 0x20 197 #define TX_CTL_SEG_ENA 0x10 198 #define TX_CTL_SEG 0x0f 199 200 static int tfbmatch __P((struct device *, struct cfdata *, void *)); 201 static void tfbattach __P((struct device *, struct device *, void *)); 202 203 CFATTACH_DECL(tfb, sizeof(struct tfb_softc), 204 tfbmatch, tfbattach, NULL, NULL); 205 206 static void tfb_common_init __P((struct rasops_info *)); 207 static struct rasops_info tfb_console_ri; 208 static tc_addr_t tfb_consaddr; 209 210 static struct wsscreen_descr tfb_stdscreen = { 211 "std", 0, 0, 212 0, /* textops */ 213 0, 0, 214 WSSCREEN_REVERSE 215 }; 216 217 static const struct wsscreen_descr *_tfb_scrlist[] = { 218 &tfb_stdscreen, 219 }; 220 221 static const struct wsscreen_list tfb_screenlist = { 222 sizeof(_tfb_scrlist) / sizeof(struct wsscreen_descr *), _tfb_scrlist 223 }; 224 225 static int tfbioctl __P((void *, u_long, caddr_t, int, struct lwp *)); 226 static paddr_t tfbmmap __P((void *, off_t, int)); 227 228 static int tfb_alloc_screen __P((void *, const struct wsscreen_descr *, 229 void **, int *, int *, long *)); 230 static void tfb_free_screen __P((void *, void *)); 231 static int tfb_show_screen __P((void *, void *, int, 232 void (*) (void *, int, int), void *)); 233 234 static const struct wsdisplay_accessops tfb_accessops = { 235 tfbioctl, 236 tfbmmap, 237 tfb_alloc_screen, 238 tfb_free_screen, 239 tfb_show_screen, 240 0 /* load_font */ 241 }; 242 243 int tfb_cnattach __P((tc_addr_t)); 244 static int tfbintr __P((void *)); 245 static void tfbhwinit __P((caddr_t)); 246 247 static int get_cmap __P((struct tfb_softc *, struct wsdisplay_cmap *)); 248 static int set_cmap __P((struct tfb_softc *, struct wsdisplay_cmap *)); 249 static int set_cursor __P((struct tfb_softc *, struct wsdisplay_cursor *)); 250 static int get_cursor __P((struct tfb_softc *, struct wsdisplay_cursor *)); 251 static void set_curpos __P((struct tfb_softc *, struct wsdisplay_curpos *)); 252 253 /* bit order reverse */ 254 static const u_int8_t flip[256] = { 255 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 256 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0, 257 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8, 258 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8, 259 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4, 260 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4, 261 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec, 262 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc, 263 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2, 264 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2, 265 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea, 266 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa, 267 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6, 268 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6, 269 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee, 270 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe, 271 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1, 272 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1, 273 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9, 274 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9, 275 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5, 276 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5, 277 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed, 278 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd, 279 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3, 280 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3, 281 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb, 282 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb, 283 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7, 284 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7, 285 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef, 286 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff, 287 }; 288 289 static int 290 tfbmatch(parent, match, aux) 291 struct device *parent; 292 struct cfdata *match; 293 void *aux; 294 { 295 struct tc_attach_args *ta = aux; 296 297 if (strncmp("PMAG-RO ", ta->ta_modname, TC_ROM_LLEN) != 0 298 && strncmp("PMAG-JA ", ta->ta_modname, TC_ROM_LLEN) != 0) 299 return (0); 300 301 return (1); 302 } 303 304 305 static void 306 tfbattach(parent, self, aux) 307 struct device *parent, *self; 308 void *aux; 309 { 310 struct tfb_softc *sc = (struct tfb_softc *)self; 311 struct tc_attach_args *ta = aux; 312 struct rasops_info *ri; 313 struct wsemuldisplaydev_attach_args waa; 314 struct hwcmap256 *cm; 315 const u_int8_t *p; 316 int console, index; 317 318 console = (ta->ta_addr == tfb_consaddr); 319 if (console) { 320 sc->sc_ri = ri = &tfb_console_ri; 321 sc->nscreens = 1; 322 } 323 else { 324 MALLOC(ri, struct rasops_info *, sizeof(struct rasops_info), 325 M_DEVBUF, M_NOWAIT); 326 if (ri == NULL) { 327 printf(": can't alloc memory\n"); 328 return; 329 } 330 memset(ri, 0, sizeof(struct rasops_info)); 331 332 ri->ri_hw = (void *)ta->ta_addr; 333 tfb_common_init(ri); 334 sc->sc_ri = ri; 335 } 336 printf(": %dx%d, 8,24bpp\n", ri->ri_width, ri->ri_height); 337 338 cm = &sc->sc_cmap; 339 p = rasops_cmap; 340 for (index = 0; index < CMAP_SIZE; index++, p += 3) { 341 cm->r[index] = p[0]; 342 cm->g[index] = p[1]; 343 cm->b[index] = p[2]; 344 } 345 346 sc->sc_vaddr = ta->ta_addr; 347 sc->sc_cursor.cc_magic.x = TX_MAGIC_X; 348 sc->sc_cursor.cc_magic.y = TX_MAGIC_Y; 349 sc->sc_blanked = sc->sc_curenb = 0; 350 351 tc_intr_establish(parent, ta->ta_cookie, IPL_TTY, tfbintr, sc); 352 353 *(u_int8_t *)((caddr_t)ri->ri_hw + TX_CONTROL) &= ~0x40; 354 *(u_int8_t *)((caddr_t)ri->ri_hw + TX_CONTROL) |= 0x40; 355 356 waa.console = console; 357 waa.scrdata = &tfb_screenlist; 358 waa.accessops = &tfb_accessops; 359 waa.accesscookie = sc; 360 361 config_found(self, &waa, wsemuldisplaydevprint); 362 } 363 364 static void 365 tfb_common_init(ri) 366 struct rasops_info *ri; 367 { 368 caddr_t base; 369 int cookie; 370 371 base = (caddr_t)ri->ri_hw; 372 373 /* initialize colormap and cursor hardware */ 374 tfbhwinit(base); 375 376 ri->ri_flg = RI_CENTER; 377 ri->ri_depth = 8; 378 ri->ri_width = 1280; 379 ri->ri_height = 1024; 380 ri->ri_stride = 1280; 381 ri->ri_bits = base + TX_8BPP_OFFSET; 382 383 /* clear the screen */ 384 memset(ri->ri_bits, 0, ri->ri_stride * ri->ri_height); 385 386 wsfont_init(); 387 /* prefer 12 pixel wide font */ 388 cookie = wsfont_find(NULL, 12, 0, 0, WSDISPLAY_FONTORDER_L2R, 389 WSDISPLAY_FONTORDER_L2R); 390 if (cookie <= 0) 391 cookie = wsfont_find(NULL, 0, 0, 0, WSDISPLAY_FONTORDER_L2R, 392 WSDISPLAY_FONTORDER_L2R); 393 if (cookie <= 0) { 394 printf("tfb: font table is empty\n"); 395 return; 396 } 397 398 if (wsfont_lock(cookie, &ri->ri_font)) { 399 printf("tfb: couldn't lock font\n"); 400 return; 401 } 402 ri->ri_wsfcookie = cookie; 403 404 rasops_init(ri, 34, 80); 405 406 /* XXX shouldn't be global */ 407 tfb_stdscreen.nrows = ri->ri_rows; 408 tfb_stdscreen.ncols = ri->ri_cols; 409 tfb_stdscreen.textops = &ri->ri_ops; 410 tfb_stdscreen.capabilities = ri->ri_caps; 411 } 412 413 static int 414 tfbioctl(v, cmd, data, flag, l) 415 void *v; 416 u_long cmd; 417 caddr_t data; 418 int flag; 419 struct lwp *l; 420 { 421 struct tfb_softc *sc = v; 422 struct rasops_info *ri = sc->sc_ri; 423 int turnoff; 424 425 switch (cmd) { 426 case WSDISPLAYIO_GTYPE: 427 *(u_int *)data = WSDISPLAY_TYPE_TX; 428 return (0); 429 430 case WSDISPLAYIO_GINFO: 431 #define wsd_fbip ((struct wsdisplay_fbinfo *)data) 432 wsd_fbip->height = ri->ri_height; 433 wsd_fbip->width = ri->ri_width; 434 wsd_fbip->depth = ri->ri_depth; 435 wsd_fbip->cmsize = CMAP_SIZE; 436 #undef fbt 437 return (0); 438 439 case WSDISPLAYIO_GETCMAP: 440 return get_cmap(sc, (struct wsdisplay_cmap *)data); 441 442 case WSDISPLAYIO_PUTCMAP: 443 return set_cmap(sc, (struct wsdisplay_cmap *)data); 444 445 case WSDISPLAYIO_SVIDEO: 446 turnoff = *(int *)data == WSDISPLAYIO_VIDEO_OFF; 447 if ((sc->sc_blanked == 0) ^ turnoff) { 448 sc->sc_blanked = turnoff; 449 #if 0 /* XXX later XXX */ 450 To turn off; 451 - clear the MSB of TX control register; &= ~0x80, 452 - assign Bt431 register #0 with value 0x4 to hide sprite cursor. 453 #endif /* XXX XXX XXX */ 454 } 455 return (0); 456 457 case WSDISPLAYIO_GVIDEO: 458 *(u_int *)data = sc->sc_blanked ? 459 WSDISPLAYIO_VIDEO_OFF : WSDISPLAYIO_VIDEO_ON; 460 return (0); 461 462 case WSDISPLAYIO_GCURPOS: 463 *(struct wsdisplay_curpos *)data = sc->sc_cursor.cc_pos; 464 return (0); 465 466 case WSDISPLAYIO_SCURPOS: 467 set_curpos(sc, (struct wsdisplay_curpos *)data); 468 sc->sc_changed = WSDISPLAY_CURSOR_DOPOS; 469 return (0); 470 471 case WSDISPLAYIO_GCURMAX: 472 ((struct wsdisplay_curpos *)data)->x = 473 ((struct wsdisplay_curpos *)data)->y = CURSOR_MAX_SIZE; 474 return (0); 475 476 case WSDISPLAYIO_GCURSOR: 477 return get_cursor(sc, (struct wsdisplay_cursor *)data); 478 479 case WSDISPLAYIO_SCURSOR: 480 return set_cursor(sc, (struct wsdisplay_cursor *)data); 481 } 482 return (EPASSTHROUGH); 483 } 484 485 static paddr_t 486 tfbmmap(v, offset, prot) 487 void *v; 488 off_t offset; 489 int prot; 490 { 491 struct tfb_softc *sc = v; 492 493 if (offset >= TX_8BPP_SIZE || offset < 0) /* XXX 24bpp XXX */ 494 return (-1); 495 return machine_btop(sc->sc_vaddr + TX_8BPP_OFFSET + offset); 496 } 497 498 static int 499 tfb_alloc_screen(v, type, cookiep, curxp, curyp, attrp) 500 void *v; 501 const struct wsscreen_descr *type; 502 void **cookiep; 503 int *curxp, *curyp; 504 long *attrp; 505 { 506 struct tfb_softc *sc = v; 507 struct rasops_info *ri = sc->sc_ri; 508 long defattr; 509 510 if (sc->nscreens > 0) 511 return (ENOMEM); 512 513 *cookiep = ri; /* one and only for now */ 514 *curxp = 0; 515 *curyp = 0; 516 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); 517 *attrp = defattr; 518 sc->nscreens++; 519 return (0); 520 } 521 522 static void 523 tfb_free_screen(v, cookie) 524 void *v; 525 void *cookie; 526 { 527 struct tfb_softc *sc = v; 528 529 if (sc->sc_ri == &tfb_console_ri) 530 panic("tfb_free_screen: console"); 531 532 sc->nscreens--; 533 } 534 535 static int 536 tfb_show_screen(v, cookie, waitok, cb, cbarg) 537 void *v; 538 void *cookie; 539 int waitok; 540 void (*cb) __P((void *, int, int)); 541 void *cbarg; 542 { 543 544 return (0); 545 } 546 547 /* EXPORT */ int 548 tfb_cnattach(addr) 549 tc_addr_t addr; 550 { 551 struct rasops_info *ri; 552 long defattr; 553 554 ri = &tfb_console_ri; 555 ri->ri_hw = (void *)addr; 556 tfb_common_init(ri); 557 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); 558 wsdisplay_cnattach(&tfb_stdscreen, ri, 0, 0, defattr); 559 tfb_consaddr = addr; 560 return (0); 561 } 562 563 static int 564 tfbintr(arg) 565 void *arg; 566 { 567 struct tfb_softc *sc = arg; 568 caddr_t base, vdac, curs; 569 int v; 570 571 base = (caddr_t)sc->sc_ri->ri_hw; 572 *(u_int8_t *)(base + TX_CONTROL) &= ~0x40; 573 if (sc->sc_changed == 0) 574 goto done; 575 576 vdac = base + TX_BT463_OFFSET; 577 curs = base + TX_BT431_OFFSET; 578 v = sc->sc_changed; 579 if (v & WSDISPLAY_CURSOR_DOCUR) { 580 SELECT431(curs, BT431_REG_COMMAND); 581 HALF(curs, bt_ctl) = (sc->sc_curenb) ? 0x4444 : 0x0404; 582 } 583 if (v & (WSDISPLAY_CURSOR_DOPOS | WSDISPLAY_CURSOR_DOHOT)) { 584 int x, y; 585 u_int16_t twin; 586 587 x = sc->sc_cursor.cc_pos.x - sc->sc_cursor.cc_hot.x; 588 y = sc->sc_cursor.cc_pos.y - sc->sc_cursor.cc_hot.y; 589 590 x += sc->sc_cursor.cc_magic.x; 591 y += sc->sc_cursor.cc_magic.y; 592 593 SELECT431(curs, BT431_REG_CURSOR_X_LOW); 594 HALF(curs, bt_ctl) = TWIN_LO(x); tc_wmb(); 595 HALF(curs, bt_ctl) = TWIN_HI(x); tc_wmb(); 596 HALF(curs, bt_ctl) = TWIN_LO(y); tc_wmb(); 597 HALF(curs, bt_ctl) = TWIN_HI(y); tc_wmb(); 598 } 599 if (v & WSDISPLAY_CURSOR_DOCMAP) { 600 u_int8_t *cp = sc->sc_cursor.cc_color; 601 602 SELECT463(vdac, BT463_IREG_CURSOR_COLOR_0); 603 BYTE(vdac, bt_reg) = cp[1]; tc_wmb(); 604 BYTE(vdac, bt_reg) = cp[3]; tc_wmb(); 605 BYTE(vdac, bt_reg) = cp[5]; tc_wmb(); 606 607 BYTE(vdac, bt_reg) = cp[0]; tc_wmb(); 608 BYTE(vdac, bt_reg) = cp[2]; tc_wmb(); 609 BYTE(vdac, bt_reg) = cp[4]; tc_wmb(); 610 611 BYTE(vdac, bt_reg) = cp[1]; tc_wmb(); 612 BYTE(vdac, bt_reg) = cp[3]; tc_wmb(); 613 BYTE(vdac, bt_reg) = cp[5]; tc_wmb(); 614 615 BYTE(vdac, bt_reg) = cp[1]; tc_wmb(); 616 BYTE(vdac, bt_reg) = cp[3]; tc_wmb(); 617 BYTE(vdac, bt_reg) = cp[5]; tc_wmb(); 618 } 619 if (v & WSDISPLAY_CURSOR_DOSHAPE) { 620 u_int8_t *ip, *mp, img, msk; 621 int bcnt; 622 623 ip = (u_int8_t *)sc->sc_cursor.cc_image; 624 mp = (u_int8_t *)(sc->sc_cursor.cc_image + CURSOR_MAX_SIZE); 625 bcnt = 0; 626 SELECT431(curs, BT431_REG_CRAM_BASE); 627 628 /* 64 pixel scan line is consisted with 16 byte cursor ram */ 629 while (bcnt < sc->sc_cursor.cc_size.y * 16) { 630 /* pad right half 32 pixel when smaller than 33 */ 631 if ((bcnt & 0x8) && sc->sc_cursor.cc_size.x < 33) { 632 HALF(curs, bt_ram) = 0; 633 tc_wmb(); 634 } 635 else { 636 img = *ip++; 637 msk = *mp++; 638 img &= msk; /* cookie off image */ 639 HALF(curs, bt_ram) 640 = (flip[img] << 8) | flip[msk]; 641 tc_wmb(); 642 } 643 bcnt += 2; 644 } 645 /* pad unoccupied scan lines */ 646 while (bcnt < CURSOR_MAX_SIZE * 16) { 647 HALF(curs, bt_ram) = 0; 648 tc_wmb(); 649 bcnt += 2; 650 } 651 } 652 if (v & WSDISPLAY_CMAP_DOLUT) { 653 struct hwcmap256 *cm = &sc->sc_cmap; 654 int index; 655 656 SELECT463(vdac, BT463_IREG_CPALETTE_RAM); 657 for (index = 0; index < CMAP_SIZE; index++) { 658 BYTE(vdac, bt_cmap) = cm->r[index]; 659 BYTE(vdac, bt_cmap) = cm->g[index]; 660 BYTE(vdac, bt_cmap) = cm->b[index]; 661 } 662 } 663 sc->sc_changed = 0; 664 done: 665 *(u_int8_t *)(base + TX_CONTROL) &= ~0x40; /* !? Eeeh !? */ 666 *(u_int8_t *)(base + TX_CONTROL) |= 0x40; 667 return (1); 668 } 669 670 static void 671 tfbhwinit(tfbbase) 672 caddr_t tfbbase; 673 { 674 caddr_t vdac, curs; 675 const u_int8_t *p; 676 int i; 677 678 vdac = tfbbase + TX_BT463_OFFSET; 679 curs = tfbbase + TX_BT431_OFFSET; 680 SELECT463(vdac, BT463_IREG_COMMAND_0); 681 BYTE(vdac, bt_reg) = 0x40; tc_wmb(); /* CMD 0 */ 682 BYTE(vdac, bt_reg) = 0x46; tc_wmb(); /* CMD 1 */ 683 BYTE(vdac, bt_reg) = 0xc0; tc_wmb(); /* CMD 2 */ 684 BYTE(vdac, bt_reg) = 0; tc_wmb(); /* !? 204 !? */ 685 BYTE(vdac, bt_reg) = 0xff; tc_wmb(); /* plane 0:7 */ 686 BYTE(vdac, bt_reg) = 0xff; tc_wmb(); /* plane 8:15 */ 687 BYTE(vdac, bt_reg) = 0xff; tc_wmb(); /* plane 16:23 */ 688 BYTE(vdac, bt_reg) = 0xff; tc_wmb(); /* plane 24:27 */ 689 BYTE(vdac, bt_reg) = 0x00; tc_wmb(); /* blink 0:7 */ 690 BYTE(vdac, bt_reg) = 0x00; tc_wmb(); /* blink 8:15 */ 691 BYTE(vdac, bt_reg) = 0x00; tc_wmb(); /* blink 16:23 */ 692 BYTE(vdac, bt_reg) = 0x00; tc_wmb(); /* blink 24:27 */ 693 BYTE(vdac, bt_reg) = 0x00; tc_wmb(); 694 695 #if 0 /* XXX ULTRIX does initialize 16 entry window type here XXX */ 696 { 697 static u_int32_t windowtype[BT463_IREG_WINDOW_TYPE_TABLE] = { 698 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 699 }; 700 701 SELECT463(vdac, BT463_IREG_WINDOW_TYPE_TABLE); 702 for (i = 0; i < BT463_NWTYPE_ENTRIES; i++) { 703 BYTE(vdac, bt_reg) = windowtype[i]; /* 0:7 */ 704 BYTE(vdac, bt_reg) = windowtype[i] >> 8; /* 8:15 */ 705 BYTE(vdac, bt_reg) = windowtype[i] >> 16; /* 16:23 */ 706 } 707 } 708 #endif 709 710 SELECT463(vdac, BT463_IREG_CPALETTE_RAM); 711 p = rasops_cmap; 712 for (i = 0; i < 256; i++, p += 3) { 713 BYTE(vdac, bt_cmap) = p[0]; tc_wmb(); 714 BYTE(vdac, bt_cmap) = p[1]; tc_wmb(); 715 BYTE(vdac, bt_cmap) = p[2]; tc_wmb(); 716 } 717 718 /* !? Eeeh !? */ 719 SELECT463(vdac, 0x0100 /* BT463_IREG_CURSOR_COLOR_0 */); 720 for (i = 0; i < 256; i++) { 721 BYTE(vdac, bt_cmap) = i; tc_wmb(); 722 BYTE(vdac, bt_cmap) = i; tc_wmb(); 723 BYTE(vdac, bt_cmap) = i; tc_wmb(); 724 } 725 726 SELECT431(curs, BT431_REG_COMMAND); 727 HALF(curs, bt_ctl) = 0x0404; tc_wmb(); 728 HALF(curs, bt_ctl) = 0; /* XLO */ tc_wmb(); 729 HALF(curs, bt_ctl) = 0; /* XHI */ tc_wmb(); 730 HALF(curs, bt_ctl) = 0; /* YLO */ tc_wmb(); 731 HALF(curs, bt_ctl) = 0; /* YHI */ tc_wmb(); 732 HALF(curs, bt_ctl) = 0; /* XWLO */ tc_wmb(); 733 HALF(curs, bt_ctl) = 0; /* XWHI */ tc_wmb(); 734 HALF(curs, bt_ctl) = 0; /* WYLO */ tc_wmb(); 735 HALF(curs, bt_ctl) = 0; /* WYLO */ tc_wmb(); 736 HALF(curs, bt_ctl) = 0; /* WWLO */ tc_wmb(); 737 HALF(curs, bt_ctl) = 0; /* WWHI */ tc_wmb(); 738 HALF(curs, bt_ctl) = 0; /* WHLO */ tc_wmb(); 739 HALF(curs, bt_ctl) = 0; /* WHHI */ tc_wmb(); 740 741 SELECT431(curs, BT431_REG_CRAM_BASE); 742 for (i = 0; i < 512; i++) { 743 HALF(curs, bt_ram) = 0; tc_wmb(); 744 } 745 } 746 747 static int 748 get_cmap(sc, p) 749 struct tfb_softc *sc; 750 struct wsdisplay_cmap *p; 751 { 752 u_int index = p->index, count = p->count; 753 754 if (index >= CMAP_SIZE || count > CMAP_SIZE - index) 755 return (EINVAL); 756 757 if (!uvm_useracc(p->red, count, B_WRITE) || 758 !uvm_useracc(p->green, count, B_WRITE) || 759 !uvm_useracc(p->blue, count, B_WRITE)) 760 return (EFAULT); 761 762 copyout(&sc->sc_cmap.r[index], p->red, count); 763 copyout(&sc->sc_cmap.g[index], p->green, count); 764 copyout(&sc->sc_cmap.b[index], p->blue, count); 765 766 return (0); 767 } 768 769 static int 770 set_cmap(sc, p) 771 struct tfb_softc *sc; 772 struct wsdisplay_cmap *p; 773 { 774 u_int index = p->index, count = p->count; 775 776 if (index >= CMAP_SIZE || count > CMAP_SIZE - index) 777 return (EINVAL); 778 779 if (!uvm_useracc(p->red, count, B_READ) || 780 !uvm_useracc(p->green, count, B_READ) || 781 !uvm_useracc(p->blue, count, B_READ)) 782 return (EFAULT); 783 784 copyin(p->red, &sc->sc_cmap.r[index], count); 785 copyin(p->green, &sc->sc_cmap.g[index], count); 786 copyin(p->blue, &sc->sc_cmap.b[index], count); 787 788 sc->sc_changed |= WSDISPLAY_CMAP_DOLUT; 789 790 return (0); 791 } 792 793 static int 794 set_cursor(sc, p) 795 struct tfb_softc *sc; 796 struct wsdisplay_cursor *p; 797 { 798 #define cc (&sc->sc_cursor) 799 u_int v, index, count, icount; 800 801 v = p->which; 802 if (v & WSDISPLAY_CURSOR_DOCMAP) { 803 index = p->cmap.index; 804 count = p->cmap.count; 805 if (index >= 2 || (index + count) > 2) 806 return (EINVAL); 807 if (!uvm_useracc(p->cmap.red, count, B_READ) || 808 !uvm_useracc(p->cmap.green, count, B_READ) || 809 !uvm_useracc(p->cmap.blue, count, B_READ)) 810 return (EFAULT); 811 } 812 if (v & WSDISPLAY_CURSOR_DOSHAPE) { 813 if (p->size.x > CURSOR_MAX_SIZE || p->size.y > CURSOR_MAX_SIZE) 814 return (EINVAL); 815 icount = ((p->size.x < 33) ? 4 : 8) * p->size.y; 816 if (!uvm_useracc(p->image, icount, B_READ) || 817 !uvm_useracc(p->mask, icount, B_READ)) 818 return (EFAULT); 819 } 820 821 if (v & WSDISPLAY_CURSOR_DOCUR) 822 sc->sc_curenb = p->enable; 823 if (v & WSDISPLAY_CURSOR_DOPOS) 824 set_curpos(sc, &p->pos); 825 if (v & WSDISPLAY_CURSOR_DOHOT) 826 cc->cc_hot = p->hot; 827 if (v & WSDISPLAY_CURSOR_DOCMAP) { 828 copyin(p->cmap.red, &cc->cc_color[index], count); 829 copyin(p->cmap.green, &cc->cc_color[index + 2], count); 830 copyin(p->cmap.blue, &cc->cc_color[index + 4], count); 831 } 832 if (v & WSDISPLAY_CURSOR_DOSHAPE) { 833 cc->cc_size = p->size; 834 memset(cc->cc_image, 0, sizeof cc->cc_image); 835 copyin(p->image, cc->cc_image, icount); 836 copyin(p->mask, cc->cc_image+CURSOR_MAX_SIZE, icount); 837 } 838 sc->sc_changed = v; 839 840 return (0); 841 #undef cc 842 } 843 844 static int 845 get_cursor(sc, p) 846 struct tfb_softc *sc; 847 struct wsdisplay_cursor *p; 848 { 849 return (EPASSTHROUGH); /* XXX */ 850 } 851 852 static void 853 set_curpos(sc, curpos) 854 struct tfb_softc *sc; 855 struct wsdisplay_curpos *curpos; 856 { 857 struct rasops_info *ri = sc->sc_ri; 858 int x = curpos->x, y = curpos->y; 859 860 if (y < 0) 861 y = 0; 862 else if (y > ri->ri_height) 863 y = ri->ri_height; 864 if (x < 0) 865 x = 0; 866 else if (x > ri->ri_width) 867 x = ri->ri_width; 868 sc->sc_cursor.cc_pos.x = x; 869 sc->sc_cursor.cc_pos.y = y; 870 } 871
Indexes created Mon Oct 13 08:09:50 GMT 2025