1 /* $NetBSD: bt463.c,v 1.18 2018/01/24 05:35:58 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, 9 * NASA Ames Research Center. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * Copyright (c) 1995, 1996 Carnegie-Mellon University. 35 * All rights reserved. 36 * 37 * Author: Chris G. Demetriou 38 * 39 * Permission to use, copy, modify and distribute this software and 40 * its documentation is hereby granted, provided that both the copyright 41 * notice and this permission notice appear in all copies of the 42 * software, derivative works or modified versions, and any portions 43 * thereof, and that both notices appear in supporting documentation. 44 * 45 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 46 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 47 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 48 * 49 * Carnegie Mellon requests users of this software to return to 50 * 51 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 52 * School of Computer Science 53 * Carnegie Mellon University 54 * Pittsburgh PA 15213-3890 55 * 56 * any improvements or extensions that they make and grant Carnegie the 57 * rights to redistribute these changes. 58 */ 59 60 /* This code was derived from and originally located in sys/dev/pci/ 61 * NetBSD: tga_bt463.c,v 1.5 2000/03/04 10:27:59 elric Exp 62 */ 63 64 #include <sys/cdefs.h> 65 __KERNEL_RCSID(0, "$NetBSD: bt463.c,v 1.18 2018/01/24 05:35:58 riastradh Exp $"); 66 67 #include <sys/param.h> 68 #include <sys/systm.h> 69 #include <sys/device.h> 70 #include <sys/buf.h> 71 #include <sys/kernel.h> 72 #include <sys/malloc.h> 73 74 #include <dev/pci/pcivar.h> 75 #include <dev/pci/tgareg.h> 76 #include <dev/pci/tgavar.h> 77 #include <dev/ic/bt463reg.h> 78 #include <dev/ic/bt463var.h> 79 80 #include <dev/wscons/wsconsio.h> 81 82 /* 83 * Functions exported via the RAMDAC configuration table. 84 */ 85 void bt463_init(struct ramdac_cookie *); 86 int bt463_set_cmap(struct ramdac_cookie *, struct wsdisplay_cmap *); 87 int bt463_get_cmap(struct ramdac_cookie *, struct wsdisplay_cmap *); 88 int bt463_set_cursor(struct ramdac_cookie *, struct wsdisplay_cursor *); 89 int bt463_get_cursor(struct ramdac_cookie *, struct wsdisplay_cursor *); 90 int bt463_set_curpos(struct ramdac_cookie *, struct wsdisplay_curpos *); 91 int bt463_get_curpos(struct ramdac_cookie *, struct wsdisplay_curpos *); 92 int bt463_get_curmax(struct ramdac_cookie *, struct wsdisplay_curpos *); 93 int bt463_check_curcmap(struct ramdac_cookie *, 94 struct wsdisplay_cursor *cursorp); 95 void bt463_set_curcmap(struct ramdac_cookie *, 96 struct wsdisplay_cursor *cursorp); 97 int bt463_get_curcmap(struct ramdac_cookie *, 98 struct wsdisplay_cursor *cursorp); 99 100 #ifdef BT463_DEBUG 101 int bt463_store(void *); 102 int bt463_debug(void *); 103 int bt463_readback(void *); 104 void bt463_copyback(void *); 105 #endif 106 107 struct ramdac_funcs bt463_funcsstruct = { 108 "Bt463", 109 bt463_register, 110 bt463_init, 111 bt463_set_cmap, 112 bt463_get_cmap, 113 bt463_set_cursor, 114 bt463_get_cursor, 115 bt463_set_curpos, 116 bt463_get_curpos, 117 bt463_get_curmax, 118 bt463_check_curcmap, 119 bt463_set_curcmap, 120 bt463_get_curcmap, 121 NULL, 122 }; 123 124 /* 125 * Private data. 126 */ 127 struct bt463data { 128 void *cookie; /* This is what is passed 129 * around, and is probably 130 * struct tga_devconfig * 131 */ 132 133 int (*ramdac_sched_update)(void *, void (*)(void *)); 134 void (*ramdac_wr)(void *, u_int, u_int8_t); 135 u_int8_t (*ramdac_rd)(void *, u_int); 136 137 int changed; /* what changed; see below */ 138 char curcmap_r[2]; /* cursor colormap */ 139 char curcmap_g[2]; 140 char curcmap_b[2]; 141 char tmpcurcmap_r[2]; /* tmp cursor colormap */ 142 char tmpcurcmap_g[2]; 143 char tmpcurcmap_b[2]; 144 char cmap_r[BT463_NCMAP_ENTRIES]; /* colormap */ 145 char cmap_g[BT463_NCMAP_ENTRIES]; 146 char cmap_b[BT463_NCMAP_ENTRIES]; 147 int window_type[16]; /* 16 24-bit window type table entries */ 148 }; 149 150 /* When we're doing console initialization, there's no 151 * way to get our cookie back to the video card's softc 152 * before we call sched_update. So we stash it here, 153 * and bt463_update will look for it here first. 154 */ 155 static struct bt463data *console_data; 156 157 158 #define BTWREG(data, addr, val) do { bt463_wraddr((data), (addr)); \ 159 (data)->ramdac_wr((data)->cookie, BT463_REG_IREG_DATA, (val)); } while (0) 160 #define BTWNREG(data, val) (data)->ramdac_wr((data)->cookie, \ 161 BT463_REG_IREG_DATA, (val)) 162 #define BTRREG(data, addr) (bt463_wraddr((data), (addr)), \ 163 (data)->ramdac_rd((data)->cookie, BT463_REG_IREG_DATA)) 164 #define BTRNREG(data) ((data)->ramdac_rd((data)->cookie, BT463_REG_IREG_DATA)) 165 166 #define DATA_CURCMAP_CHANGED 0x01 /* cursor colormap changed */ 167 #define DATA_CMAP_CHANGED 0x02 /* colormap changed */ 168 #define DATA_WTYPE_CHANGED 0x04 /* window type table changed */ 169 #define DATA_ALL_CHANGED 0x07 170 171 /* 172 * Internal functions. 173 */ 174 175 void bt463_update(void *); 176 177 static inline void 178 bt463_wraddr(struct bt463data *data, u_int16_t ireg) 179 { 180 data->ramdac_wr(data->cookie, BT463_REG_ADDR_LOW, ireg & 0xff); 181 data->ramdac_wr(data->cookie, BT463_REG_ADDR_HIGH, (ireg >> 8) & 0xff); 182 } 183 184 /*****************************************************************************/ 185 186 /* 187 * Functions exported via the RAMDAC configuration table. 188 */ 189 190 struct ramdac_funcs * 191 bt463_funcs(void) 192 { 193 return &bt463_funcsstruct; 194 } 195 196 struct ramdac_cookie * 197 bt463_register( 198 void *v, 199 int (*sched_update)(void *, void (*)(void *)), 200 void (*wr)(void *, u_int, u_int8_t), 201 u_int8_t (*rd)(void *, u_int)) 202 { 203 struct bt463data *data; 204 /* 205 * XXX -- comment out of date. rcd. 206 * If we should allocate a new private info struct, do so. 207 * Otherwise, use the one we have (if it's there), or 208 * use the temporary one on the stack. 209 */ 210 data = malloc(sizeof *data, M_DEVBUF, M_WAITOK); 211 /* XXX -- if !data */ 212 data->cookie = v; 213 data->ramdac_sched_update = sched_update; 214 data->ramdac_wr = wr; 215 data->ramdac_rd = rd; 216 return (struct ramdac_cookie *)data; 217 } 218 219 /* 220 * This function exists solely to provide a means to init 221 * the RAMDAC without first registering. It is useful for 222 * initializing the console early on. 223 */ 224 void 225 bt463_cninit( 226 void *v, 227 int (*sched_update)(void *, void (*)(void *)), 228 void (*wr)(void *, u_int, u_int8_t), 229 u_int8_t (*rd)(void *, u_int)) 230 { 231 struct bt463data tmp, *data = &tmp; 232 data->cookie = v; 233 data->ramdac_sched_update = sched_update; 234 data->ramdac_wr = wr; 235 data->ramdac_rd = rd; 236 /* Set up console_data so that when bt463_update is called back, 237 * it can use the right information. 238 */ 239 console_data = data; 240 bt463_init((struct ramdac_cookie *)data); 241 console_data = NULL; 242 } 243 244 void 245 bt463_init(struct ramdac_cookie *rc) 246 { 247 struct bt463data *data = (struct bt463data *)rc; 248 249 int i; 250 251 /* 252 * Init the BT463 for normal operation. 253 */ 254 255 256 /* 257 * Setup: 258 * reg 0: 4:1 multiplexing, 25/75 blink. 259 * reg 1: Overlay mapping: mapped to common palette, 260 * 14 window type entries, 24-plane configuration mode, 261 * 4 overlay planes, underlays disabled, no cursor. 262 * reg 2: sync-on-green enabled, pedestal enabled. 263 */ 264 265 BTWREG(data, BT463_IREG_COMMAND_0, 0x40); 266 BTWREG(data, BT463_IREG_COMMAND_1, 0x48); 267 BTWREG(data, BT463_IREG_COMMAND_2, 0x40); 268 269 /* 270 * Initialize the read mask. 271 */ 272 bt463_wraddr(data, BT463_IREG_READ_MASK_P0_P7); 273 for (i = 0; i < 4; i++) 274 BTWNREG(data, 0xff); 275 276 /* 277 * Initialize the blink mask. 278 */ 279 bt463_wraddr(data, BT463_IREG_BLINK_MASK_P0_P7); 280 for (i = 0; i < 4; i++) 281 BTWNREG(data, 0); 282 283 284 /* 285 * Clear test register 286 */ 287 BTWREG(data, BT463_IREG_TEST, 0); 288 289 /* 290 * Initialize the RAMDAC info struct to hold all of our 291 * data, and fill it in. 292 */ 293 data->changed = DATA_ALL_CHANGED; 294 295 /* initial cursor colormap: 0 is black, 1 is white */ 296 data->curcmap_r[0] = data->curcmap_g[0] = data->curcmap_b[0] = 0; 297 data->curcmap_r[1] = data->curcmap_g[1] = data->curcmap_b[1] = 0xff; 298 299 /* Initial colormap: 0 is black, everything else is white */ 300 data->cmap_r[0] = data->cmap_g[0] = data->cmap_b[0] = 0; 301 for (i = 1; i < 256; i++) 302 data->cmap_r[i] = data->cmap_g[i] = data->cmap_b[i] = 255; 303 304 305 /* Initialize the window type table: 306 * 307 * Entry 0: 24-plane truecolor, overlays enabled, bypassed. 308 * 309 * Lookup table bypass: yes ( 1 << 23 & 0x800000) 800000 310 * Colormap address: 0x000 (0x000 << 17 & 0x7e0000) 0 311 * Overlay mask: 0xf ( 0xf << 13 & 0x01e000) 1e000 312 * Overlay location: P<27:24> ( 0 << 12 & 0x001000) 0 313 * Display mode: Truecolor ( 0 << 9 & 0x000e00) 000 314 * Number of planes: 8 ( 8 << 5 & 0x0001e0) 100 315 * Plane shift: 0 ( 0 << 0 & 0x00001f) 0 316 * -------- 317 * 0x81e100 318 */ 319 data->window_type[0] = 0x81e100; 320 321 /* Entry 1: 8-plane pseudocolor in the bottom 8 bits, 322 * overlays enabled, colormap starting at 0. 323 * 324 * Lookup table bypass: no ( 0 << 23 & 0x800000) 0 325 * Colormap address: 0x000 (0x000 << 17 & 0x7e0000) 0 326 * Overlay mask: 0xf ( 0xf << 13 & 0x01e000) 0x1e000 327 * Overlay location: P<27:24> ( 0 << 12 & 0x001000) 0 328 * Display mode: Pseudocolor ( 1 << 9 & 0x000e00) 0x200 329 * Number of planes: 8 ( 8 << 5 & 0x0001e0) 0x100 330 * Plane shift: 16 ( 0x10 << 0 & 0x00001f) 10 331 * -------- 332 * 0x01e310 333 */ 334 data->window_type[1] = 0x01e310; 335 336 /* The colormap interface to the world only supports one colormap, 337 * so having an entry for the 'alternate' colormap in the bt463 338 * probably isn't useful. 339 */ 340 341 /* Fill the remaining table entries with clones of entry 0 until we 342 * figure out a better use for them. 343 */ 344 345 for (i = 2; i < BT463_NWTYPE_ENTRIES; i++) { 346 data->window_type[i] = 0x81e100; 347 } 348 349 data->ramdac_sched_update(data->cookie, bt463_update); 350 351 } 352 353 int 354 bt463_set_cmap(struct ramdac_cookie *rc, struct wsdisplay_cmap *cmapp) 355 { 356 struct bt463data *data = (struct bt463data *)rc; 357 u_int count, index; 358 uint8_t r[BT463_NCMAP_ENTRIES]; 359 uint8_t g[BT463_NCMAP_ENTRIES]; 360 uint8_t b[BT463_NCMAP_ENTRIES]; 361 int s, error; 362 363 if (cmapp->index >= BT463_NCMAP_ENTRIES || 364 cmapp->count > BT463_NCMAP_ENTRIES - cmapp->index) 365 return (EINVAL); 366 367 index = cmapp->index; 368 count = cmapp->count; 369 error = copyin(cmapp->red, &r[index], count); 370 if (error) 371 return error; 372 error = copyin(cmapp->green, &g[index], count); 373 if (error) 374 return error; 375 error = copyin(cmapp->blue, &b[index], count); 376 if (error) 377 return error; 378 s = spltty(); 379 memcpy(&data->cmap_r[index], &r[index], count); 380 memcpy(&data->cmap_g[index], &g[index], count); 381 memcpy(&data->cmap_b[index], &b[index], count); 382 data->changed |= DATA_CMAP_CHANGED; 383 data->ramdac_sched_update(data->cookie, bt463_update); 384 splx(s); 385 return (0); 386 } 387 388 int 389 bt463_get_cmap(struct ramdac_cookie *rc, struct wsdisplay_cmap *cmapp) 390 { 391 struct bt463data *data = (struct bt463data *)rc; 392 u_int count, index; 393 int error; 394 395 if (cmapp->index >= BT463_NCMAP_ENTRIES || 396 cmapp->count > BT463_NCMAP_ENTRIES - cmapp->index) 397 return (EINVAL); 398 399 count = cmapp->count; 400 index = cmapp->index; 401 402 error = copyout(&data->cmap_r[index], cmapp->red, count); 403 if (error) 404 return (error); 405 error = copyout(&data->cmap_g[index], cmapp->green, count); 406 if (error) 407 return (error); 408 error = copyout(&data->cmap_b[index], cmapp->blue, count); 409 return (error); 410 } 411 412 int 413 bt463_check_curcmap(struct ramdac_cookie *rc, struct wsdisplay_cursor *cursorp) 414 { 415 struct bt463data *data = (struct bt463data *)rc; 416 int count, index, error; 417 418 if (cursorp->cmap.index > 2 || 419 cursorp->cmap.count > 2 - cursorp->cmap.index) 420 return (EINVAL); 421 count = cursorp->cmap.count; 422 index = cursorp->cmap.index; 423 error = copyin(cursorp->cmap.red, &data->tmpcurcmap_r[index], count); 424 if (error) 425 return error; 426 error = copyin(cursorp->cmap.green, &data->tmpcurcmap_g[index], count); 427 if (error) 428 return error; 429 error = copyin(cursorp->cmap.blue, &data->tmpcurcmap_b[index], count); 430 if (error) 431 return error; 432 return (0); 433 } 434 435 void 436 bt463_set_curcmap(struct ramdac_cookie *rc, struct wsdisplay_cursor *cursorp) 437 { 438 struct bt463data *data = (struct bt463data *)rc; 439 int count, index; 440 441 count = cursorp->cmap.count; 442 index = cursorp->cmap.index; 443 memcpy(&data->curcmap_r[index], &data->tmpcurcmap_r[index], count); 444 memcpy(&data->curcmap_g[index], &data->tmpcurcmap_g[index], count); 445 memcpy(&data->curcmap_b[index], &data->tmpcurcmap_b[index], count); 446 data->changed |= DATA_CURCMAP_CHANGED; 447 data->ramdac_sched_update(data->cookie, bt463_update); 448 } 449 450 int 451 bt463_get_curcmap(struct ramdac_cookie *rc, struct wsdisplay_cursor *cursorp) 452 { 453 struct bt463data *data = (struct bt463data *)rc; 454 int error; 455 456 cursorp->cmap.index = 0; /* DOCMAP */ 457 cursorp->cmap.count = 2; 458 if (cursorp->cmap.red != NULL) { 459 error = copyout(data->curcmap_r, cursorp->cmap.red, 2); 460 if (error) 461 return (error); 462 } 463 if (cursorp->cmap.green != NULL) { 464 error = copyout(data->curcmap_g, cursorp->cmap.green, 2); 465 if (error) 466 return (error); 467 } 468 if (cursorp->cmap.blue != NULL) { 469 error = copyout(data->curcmap_b, cursorp->cmap.blue, 2); 470 if (error) 471 return (error); 472 } 473 return (0); 474 } 475 476 477 /*****************************************************************************/ 478 479 /* 480 * Internal functions. 481 */ 482 483 #ifdef BT463_DEBUG 484 int bt463_store(void *v) 485 { 486 struct bt463data *data = (struct bt463data *)v; 487 488 data->changed = DATA_ALL_CHANGED; 489 data->ramdac_sched_update(data->cookie, bt463_update); 490 printf("Scheduled bt463 store\n"); 491 492 return 0; 493 } 494 495 496 int bt463_readback(void *v) 497 { 498 struct bt463data *data = (struct bt463data *)v; 499 500 data->ramdac_sched_update(data->cookie, bt463_copyback); 501 printf("Scheduled bt463 copyback\n"); 502 return 0; 503 } 504 505 int 506 bt463_debug(void *v) 507 { 508 struct bt463data *data = (struct bt463data *)v; 509 int i; 510 u_int8_t val; 511 512 printf("BT463 main regs:\n"); 513 for (i = 0x200; i < 0x20F; i ++) { 514 val = BTRREG(data, i); 515 printf(" $%04x %02x\n", i, val); 516 } 517 518 printf("BT463 revision register:\n"); 519 val = BTRREG(data, 0x220); 520 printf(" $%04x %02x\n", 0x220, val); 521 522 printf("BT463 window type table (from softc):\n"); 523 524 for (i = 0; i < BT463_NWTYPE_ENTRIES; i++) { 525 printf("%02x %06x\n", i, data->window_type[i]); 526 } 527 528 return 0; 529 } 530 531 void 532 bt463_copyback(void *p) 533 { 534 struct bt463data *data = (struct bt463data *)p; 535 int i; 536 537 for (i = 0; i < BT463_NWTYPE_ENTRIES; i++) { 538 bt463_wraddr(data, BT463_IREG_WINDOW_TYPE_TABLE + i); 539 data->window_type[i] = (BTRNREG(data) & 0xff); /* B0-7 */ 540 data->window_type[i] |= (BTRNREG(data) & 0xff) << 8; /* B8-15 */ 541 data->window_type[i] |= (BTRNREG(data) & 0xff) << 16; /* B16-23 */ 542 } 543 } 544 #endif 545 546 void 547 bt463_update(void *p) 548 { 549 struct bt463data *data = (struct bt463data *)p; 550 int i, v; 551 552 if (console_data != NULL) { 553 /* The cookie passed in from sched_update is incorrect. Use the 554 * right one. 555 */ 556 data = console_data; 557 } 558 559 v = data->changed; 560 561 /* The Bt463 won't accept window type data except during a blanking 562 * interval, so we do this early in the interrupt. 563 * Blanking the screen might also be a good idea, but it can cause 564 * unpleasant flashing and is hard to do from this side of the 565 * ramdac interface. 566 */ 567 if (v & DATA_WTYPE_CHANGED) { 568 /* spit out the window type data */ 569 for (i = 0; i < BT463_NWTYPE_ENTRIES; i++) { 570 bt463_wraddr(data, BT463_IREG_WINDOW_TYPE_TABLE + i); 571 BTWNREG(data, (data->window_type[i]) & 0xff); /* B0-7 */ 572 BTWNREG(data, (data->window_type[i] >> 8) & 0xff); /* B8-15 */ 573 BTWNREG(data, (data->window_type[i] >> 16) & 0xff); /* B16-23 */ 574 } 575 } 576 577 if (v & DATA_CURCMAP_CHANGED) { 578 bt463_wraddr(data, BT463_IREG_CURSOR_COLOR_0); 579 /* spit out the cursor data */ 580 for (i = 0; i < 2; i++) { 581 BTWNREG(data, data->curcmap_r[i]); 582 BTWNREG(data, data->curcmap_g[i]); 583 BTWNREG(data, data->curcmap_b[i]); 584 } 585 } 586 587 if (v & DATA_CMAP_CHANGED) { 588 bt463_wraddr(data, BT463_IREG_CPALETTE_RAM); 589 /* spit out the colormap data */ 590 for (i = 0; i < BT463_NCMAP_ENTRIES; i++) { 591 data->ramdac_wr(data->cookie, BT463_REG_CMAP_DATA, 592 data->cmap_r[i]); 593 data->ramdac_wr(data->cookie, BT463_REG_CMAP_DATA, 594 data->cmap_g[i]); 595 data->ramdac_wr(data->cookie, BT463_REG_CMAP_DATA, 596 data->cmap_b[i]); 597 } 598 } 599 600 data->changed = 0; 601 } 602 603 int 604 bt463_set_cursor( 605 struct ramdac_cookie *rc, 606 struct wsdisplay_cursor *cur) 607 { 608 struct bt463data *data = (struct bt463data *)rc; 609 return tga_builtin_set_cursor(data->cookie, cur); 610 } 611 612 int 613 bt463_get_cursor( 614 struct ramdac_cookie *rc, 615 struct wsdisplay_cursor *cur) 616 { 617 struct bt463data *data = (struct bt463data *)rc; 618 return tga_builtin_get_cursor(data->cookie, cur); 619 } 620 621 int 622 bt463_set_curpos( 623 struct ramdac_cookie *rc, 624 struct wsdisplay_curpos *cur) 625 { 626 struct bt463data *data = (struct bt463data *)rc; 627 return tga_builtin_set_curpos(data->cookie, cur); 628 } 629 630 int 631 bt463_get_curpos( 632 struct ramdac_cookie *rc, 633 struct wsdisplay_curpos *cur) 634 { 635 struct bt463data *data = (struct bt463data *)rc; 636 return tga_builtin_get_curpos(data->cookie, cur); 637 } 638 639 int 640 bt463_get_curmax( 641 struct ramdac_cookie *rc, 642 struct wsdisplay_curpos *cur) 643 { 644 struct bt463data *data = (struct bt463data *)rc; 645 return tga_builtin_get_curmax(data->cookie, cur); 646 } 647