1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */ 28 /* Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T */ 29 /* All Rights Reserved */ 30 31 #include <sys/errno.h> 32 #include <sys/types.h> 33 #include <sys/conf.h> 34 #include <sys/kmem.h> 35 #include <sys/visual_io.h> 36 #include <sys/font.h> 37 #include <sys/fbio.h> 38 39 #include <sys/ddi.h> 40 #include <sys/stat.h> 41 #include <sys/sunddi.h> 42 #include <sys/file.h> 43 #include <sys/open.h> 44 #include <sys/modctl.h> 45 #include <sys/vgareg.h> 46 #include <sys/vgasubr.h> 47 #include <sys/pci.h> 48 #include <sys/kd.h> 49 #include <sys/ddi_impldefs.h> 50 #include <sys/sunldi.h> 51 #include <sys/agpgart.h> 52 #include <sys/agp/agpdefs.h> 53 #include <sys/agp/agpmaster_io.h> 54 55 #define MYNAME "vgatext" 56 57 /* 58 * Each instance of this driver has 2 minor nodes: 59 * 0: for common graphics operations 60 * 1: for agpmaster operations 61 */ 62 #define GFX_MINOR 0 63 #define AGPMASTER_MINOR 1 64 65 #define MY_NBITSMINOR 1 66 #define DEV2INST(dev) (getminor(dev) >> MY_NBITSMINOR) 67 #define DEV2MINOR(dev) (getminor(dev) & ((1 << MY_NBITSMINOR) - 1)) 68 #define INST2NODE1(inst) ((inst) << MY_NBITSMINOR + GFX_MINOR) 69 #define INST2NODE2(inst) (((inst) << MY_NBITSMINOR) + AGPMASTER_MINOR) 70 71 /* I don't know exactly where these should be defined, but this is a */ 72 /* heck of a lot better than constants in the code. */ 73 #define TEXT_ROWS 25 74 #define TEXT_COLS 80 75 76 #define VGA_BRIGHT_WHITE 0x0f 77 #define VGA_BLACK 0x00 78 79 #define VGA_REG_ADDR 0x3c0 80 #define VGA_REG_SIZE 0x20 81 82 #define VGA_MEM_ADDR 0xa0000 83 #define VGA_MEM_SIZE 0x20000 84 85 #define VGA_MMAP_FB_BASE VGA_MEM_ADDR 86 87 /* 88 * This variable allows for this driver to suspend even if it 89 * shouldn't. Note that by setting it, the framebuffer will probably 90 * not come back. So use it with a serial console, or with serial 91 * line debugging (say, for example, if this driver is being modified 92 * to support _some_ hardware doing suspend and resume). 93 */ 94 int vgatext_force_suspend = 0; 95 96 static int vgatext_open(dev_t *, int, int, cred_t *); 97 static int vgatext_close(dev_t, int, int, cred_t *); 98 static int vgatext_ioctl(dev_t, int, intptr_t, int, cred_t *, int *); 99 static int vgatext_devmap(dev_t, devmap_cookie_t, offset_t, size_t, 100 size_t *, uint_t); 101 102 static struct cb_ops cb_vgatext_ops = { 103 vgatext_open, /* cb_open */ 104 vgatext_close, /* cb_close */ 105 nodev, /* cb_strategy */ 106 nodev, /* cb_print */ 107 nodev, /* cb_dump */ 108 nodev, /* cb_read */ 109 nodev, /* cb_write */ 110 vgatext_ioctl, /* cb_ioctl */ 111 vgatext_devmap, /* cb_devmap */ 112 nodev, /* cb_mmap */ 113 ddi_devmap_segmap, /* cb_segmap */ 114 nochpoll, /* cb_chpoll */ 115 ddi_prop_op, /* cb_prop_op */ 116 0, /* cb_stream */ 117 D_NEW | D_MTSAFE /* cb_flag */ 118 }; 119 120 static int vgatext_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, 121 void **result); 122 static int vgatext_attach(dev_info_t *, ddi_attach_cmd_t); 123 static int vgatext_detach(dev_info_t *, ddi_detach_cmd_t); 124 125 static struct vis_identifier text_ident = { "SUNWtext" }; 126 127 static struct dev_ops vgatext_ops = { 128 DEVO_REV, /* devo_rev */ 129 0, /* devo_refcnt */ 130 vgatext_info, /* devo_getinfo */ 131 nulldev, /* devo_identify */ 132 nulldev, /* devo_probe */ 133 vgatext_attach, /* devo_attach */ 134 vgatext_detach, /* devo_detach */ 135 nodev, /* devo_reset */ 136 &cb_vgatext_ops, /* devo_cb_ops */ 137 (struct bus_ops *)NULL, /* devo_bus_ops */ 138 NULL, /* power */ 139 ddi_quiesce_not_needed, /* quiesce */ 140 }; 141 142 struct vgatext_softc { 143 struct vgaregmap regs; 144 struct vgaregmap fb; 145 off_t fb_size; 146 int fb_regno; 147 dev_info_t *devi; 148 int mode; /* KD_TEXT or KD_GRAPHICS */ 149 caddr_t text_base; /* hardware text base */ 150 char shadow[TEXT_ROWS*TEXT_COLS*2]; 151 caddr_t current_base; /* hardware or shadow */ 152 struct { 153 boolean_t visible; 154 int row; 155 int col; 156 } cursor; 157 struct vis_polledio polledio; 158 struct { 159 unsigned char red; 160 unsigned char green; 161 unsigned char blue; 162 } colormap[VGA8_CMAP_ENTRIES]; 163 unsigned char attrib_palette[VGA_ATR_NUM_PLT]; 164 agp_master_softc_t *agp_master; /* NULL means not PCI, for AGP */ 165 ddi_acc_handle_t *pci_cfg_hdlp; /* PCI conf handle */ 166 unsigned int flags; 167 kmutex_t lock; 168 }; 169 170 #define VGATEXT_FLAG_CONSOLE 0x00000001 171 #define VGATEXT_IS_CONSOLE(softc) ((softc)->flags & VGATEXT_FLAG_CONSOLE) 172 173 static int vgatext_devinit(struct vgatext_softc *, struct vis_devinit *data); 174 static void vgatext_cons_copy(struct vgatext_softc *, 175 struct vis_conscopy *); 176 static void vgatext_cons_display(struct vgatext_softc *, 177 struct vis_consdisplay *); 178 static void vgatext_cons_cursor(struct vgatext_softc *, 179 struct vis_conscursor *); 180 static void vgatext_polled_copy(struct vis_polledio_arg *, 181 struct vis_conscopy *); 182 static void vgatext_polled_display(struct vis_polledio_arg *, 183 struct vis_consdisplay *); 184 static void vgatext_polled_cursor(struct vis_polledio_arg *, 185 struct vis_conscursor *); 186 static void vgatext_init(struct vgatext_softc *); 187 static void vgatext_set_text(struct vgatext_softc *); 188 #if defined(USE_BORDERS) 189 static void vgatext_init_graphics(struct vgatext_softc *); 190 #endif 191 static int vgatext_kdsetmode(struct vgatext_softc *softc, int mode); 192 static void vgatext_setfont(struct vgatext_softc *softc); 193 static void vgatext_get_cursor(struct vgatext_softc *softc, 194 screen_pos_t *row, screen_pos_t *col); 195 static void vgatext_set_cursor(struct vgatext_softc *softc, int row, int col); 196 static void vgatext_hide_cursor(struct vgatext_softc *softc); 197 static void vgatext_save_colormap(struct vgatext_softc *softc); 198 static void vgatext_restore_colormap(struct vgatext_softc *softc); 199 static int vgatext_get_pci_reg_index(dev_info_t *const devi, 200 unsigned long himask, unsigned long hival, unsigned long addr, 201 off_t *offset); 202 static int vgatext_get_isa_reg_index(dev_info_t *const devi, 203 unsigned long hival, unsigned long addr, off_t *offset); 204 static void *vgatext_softc_head; 205 static char vgatext_silent; 206 static char happyface_boot; 207 208 /* Loadable Driver stuff */ 209 210 static struct modldrv modldrv = { 211 &mod_driverops, /* Type of module. This one is a driver */ 212 "VGA text driver", /* Name of the module. */ 213 &vgatext_ops, /* driver ops */ 214 }; 215 216 static struct modlinkage modlinkage = { 217 MODREV_1, (void *) &modldrv, NULL 218 }; 219 220 typedef enum pc_colors { 221 pc_black = 0, 222 pc_blue = 1, 223 pc_green = 2, 224 pc_cyan = 3, 225 pc_red = 4, 226 pc_magenta = 5, 227 pc_brown = 6, 228 pc_white = 7, 229 pc_grey = 8, 230 pc_brt_blue = 9, 231 pc_brt_green = 10, 232 pc_brt_cyan = 11, 233 pc_brt_red = 12, 234 pc_brt_magenta = 13, 235 pc_yellow = 14, 236 pc_brt_white = 15 237 } pc_colors_t; 238 239 static const unsigned char solaris_color_to_pc_color[16] = { 240 pc_brt_white, /* 0 - brt_white */ 241 pc_black, /* 1 - black */ 242 pc_blue, /* 2 - blue */ 243 pc_green, /* 3 - green */ 244 pc_cyan, /* 4 - cyan */ 245 pc_red, /* 5 - red */ 246 pc_magenta, /* 6 - magenta */ 247 pc_brown, /* 7 - brown */ 248 pc_white, /* 8 - white */ 249 pc_grey, /* 9 - gery */ 250 pc_brt_blue, /* 10 - brt_blue */ 251 pc_brt_green, /* 11 - brt_green */ 252 pc_brt_cyan, /* 12 - brt_cyan */ 253 pc_brt_red, /* 13 - brt_red */ 254 pc_brt_magenta, /* 14 - brt_magenta */ 255 pc_yellow /* 15 - yellow */ 256 }; 257 258 static ddi_device_acc_attr_t i8xx_dev_access = { 259 DDI_DEVICE_ATTR_V0, 260 DDI_NEVERSWAP_ACC, 261 DDI_STRICTORDER_ACC 262 }; 263 264 static ddi_device_acc_attr_t dev_attr = { 265 DDI_DEVICE_ATTR_V0, 266 DDI_NEVERSWAP_ACC, 267 DDI_STRICTORDER_ACC, 268 }; 269 270 int 271 _init(void) 272 { 273 int e; 274 275 if ((e = ddi_soft_state_init(&vgatext_softc_head, 276 sizeof (struct vgatext_softc), 1)) != 0) { 277 return (e); 278 } 279 280 e = mod_install(&modlinkage); 281 282 if (e) { 283 ddi_soft_state_fini(&vgatext_softc_head); 284 } 285 return (e); 286 } 287 288 int 289 _fini(void) 290 { 291 int e; 292 293 if ((e = mod_remove(&modlinkage)) != 0) 294 return (e); 295 296 ddi_soft_state_fini(&vgatext_softc_head); 297 298 return (0); 299 } 300 301 int 302 _info(struct modinfo *modinfop) 303 { 304 return (mod_info(&modlinkage, modinfop)); 305 } 306 307 /* default structure for FBIOGATTR ioctl */ 308 static struct fbgattr vgatext_attr = { 309 /* real_type owner */ 310 FBTYPE_SUNFAST_COLOR, 0, 311 /* fbtype: type h w depth cms size */ 312 { FBTYPE_SUNFAST_COLOR, TEXT_ROWS, TEXT_COLS, 1, 256, 0 }, 313 /* fbsattr: flags emu_type dev_specific */ 314 { 0, FBTYPE_SUN4COLOR, { 0 } }, 315 /* emu_types */ 316 { -1 } 317 }; 318 319 /* 320 * handy macros 321 */ 322 323 #define getsoftc(instance) ((struct vgatext_softc *) \ 324 ddi_get_soft_state(vgatext_softc_head, (instance))) 325 326 #define STREQ(a, b) (strcmp((a), (b)) == 0) 327 328 static void 329 vgatext_check_for_console(dev_info_t *devi, struct vgatext_softc *softc, 330 int pci_pcie_bus) 331 { 332 ddi_acc_handle_t pci_conf; 333 dev_info_t *pdevi; 334 uint16_t data16; 335 336 /* 337 * Based on Section 11.3, "PCI Display Subsystem Initialization", 338 * of the 1.1 PCI-to-PCI Bridge Architecture Specification 339 * determine if this is the boot console device. First, see 340 * if the SBIOS has turned on PCI I/O for this device. Then if 341 * this is PCI/PCI-E, verify the parent bridge has VGAEnable set. 342 */ 343 344 if (pci_config_setup(devi, &pci_conf) != DDI_SUCCESS) { 345 cmn_err(CE_WARN, 346 MYNAME ": can't get PCI conf handle"); 347 return; 348 } 349 350 data16 = pci_config_get16(pci_conf, PCI_CONF_COMM); 351 if (data16 & PCI_COMM_IO) 352 softc->flags |= VGATEXT_FLAG_CONSOLE; 353 354 pci_config_teardown(&pci_conf); 355 356 /* If IO not enabled or ISA/EISA, just return */ 357 if (!(softc->flags & VGATEXT_FLAG_CONSOLE) || !pci_pcie_bus) 358 return; 359 360 /* 361 * Check for VGA Enable in the Bridge Control register for all 362 * PCI/PCIEX parents. If not set all the way up the chain, 363 * this cannot be the boot console. 364 */ 365 366 pdevi = ddi_get_parent(devi); 367 while (pdevi) { 368 int error; 369 ddi_acc_handle_t ppci_conf; 370 char *parent_type = NULL; 371 372 error = ddi_prop_lookup_string(DDI_DEV_T_ANY, pdevi, 373 DDI_PROP_DONTPASS, "device_type", &parent_type); 374 if (error != DDI_SUCCESS) { 375 return; 376 } 377 378 /* Verify still on the PCI/PCIEX parent tree */ 379 if (!STREQ(parent_type, "pci") && 380 !STREQ(parent_type, "pciex")) { 381 ddi_prop_free(parent_type); 382 return; 383 } 384 385 ddi_prop_free(parent_type); 386 parent_type = NULL; 387 388 if (pci_config_setup(pdevi, &ppci_conf) != DDI_SUCCESS) { 389 /* No registers on root node, done with check */ 390 return; 391 } 392 393 data16 = pci_config_get16(ppci_conf, PCI_BCNF_BCNTRL); 394 pci_config_teardown(&ppci_conf); 395 396 if (!(data16 & PCI_BCNF_BCNTRL_VGA_ENABLE)) { 397 softc->flags &= ~VGATEXT_FLAG_CONSOLE; 398 return; 399 } 400 401 pdevi = ddi_get_parent(pdevi); 402 } 403 } 404 405 static int 406 vgatext_attach(dev_info_t *devi, ddi_attach_cmd_t cmd) 407 { 408 struct vgatext_softc *softc; 409 int unit = ddi_get_instance(devi); 410 int error; 411 char *parent_type = NULL; 412 int reg_rnumber; 413 int agpm = 0; 414 off_t reg_offset; 415 off_t mem_offset; 416 char buf[80], *cons; 417 int pci_pcie_bus = 0; 418 419 420 switch (cmd) { 421 case DDI_ATTACH: 422 break; 423 424 case DDI_RESUME: 425 /* 426 * Though vgatext doesn't really know how to resume 427 * on a generic framebuffer, we should succeed, as 428 * it is far better to have no console, than potentiall 429 * have no machine. 430 */ 431 return (DDI_SUCCESS); 432 default: 433 return (DDI_FAILURE); 434 } 435 436 /* DDI_ATTACH */ 437 438 /* Allocate softc struct */ 439 if (ddi_soft_state_zalloc(vgatext_softc_head, unit) != DDI_SUCCESS) { 440 return (DDI_FAILURE); 441 } 442 softc = getsoftc(unit); 443 444 /* link it in */ 445 softc->devi = devi; 446 ddi_set_driver_private(devi, softc); 447 448 softc->polledio.arg = (struct vis_polledio_arg *)softc; 449 softc->polledio.display = vgatext_polled_display; 450 softc->polledio.copy = vgatext_polled_copy; 451 softc->polledio.cursor = vgatext_polled_cursor; 452 453 mutex_init(&(softc->lock), NULL, MUTEX_DRIVER, NULL); 454 455 error = ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_get_parent(devi), 456 DDI_PROP_DONTPASS, "device_type", &parent_type); 457 if (error != DDI_SUCCESS) { 458 cmn_err(CE_WARN, MYNAME ": can't determine parent type."); 459 goto fail; 460 } 461 462 if (STREQ(parent_type, "isa") || STREQ(parent_type, "eisa")) { 463 reg_rnumber = vgatext_get_isa_reg_index(devi, 1, VGA_REG_ADDR, 464 ®_offset); 465 if (reg_rnumber < 0) { 466 cmn_err(CE_WARN, 467 MYNAME ": can't find reg entry for registers"); 468 error = DDI_FAILURE; 469 goto fail; 470 } 471 softc->fb_regno = vgatext_get_isa_reg_index(devi, 0, 472 VGA_MEM_ADDR, &mem_offset); 473 if (softc->fb_regno < 0) { 474 cmn_err(CE_WARN, 475 MYNAME ": can't find reg entry for memory"); 476 error = DDI_FAILURE; 477 goto fail; 478 } 479 } else if (STREQ(parent_type, "pci") || STREQ(parent_type, "pciex")) { 480 pci_pcie_bus = 1; 481 reg_rnumber = vgatext_get_pci_reg_index(devi, 482 PCI_REG_ADDR_M|PCI_REG_REL_M, 483 PCI_ADDR_IO|PCI_RELOCAT_B, VGA_REG_ADDR, 484 ®_offset); 485 if (reg_rnumber < 0) { 486 cmn_err(CE_WARN, 487 MYNAME ": can't find reg entry for registers"); 488 error = DDI_FAILURE; 489 goto fail; 490 } 491 softc->fb_regno = vgatext_get_pci_reg_index(devi, 492 PCI_REG_ADDR_M|PCI_REG_REL_M, 493 PCI_ADDR_MEM32|PCI_RELOCAT_B, VGA_MEM_ADDR, 494 &mem_offset); 495 if (softc->fb_regno < 0) { 496 cmn_err(CE_WARN, 497 MYNAME ": can't find reg entry for memory"); 498 error = DDI_FAILURE; 499 goto fail; 500 } 501 agpm = 1; /* should have AGP master support */ 502 } else { 503 cmn_err(CE_WARN, MYNAME ": unknown parent type \"%s\".", 504 parent_type); 505 error = DDI_FAILURE; 506 goto fail; 507 } 508 ddi_prop_free(parent_type); 509 parent_type = NULL; 510 511 error = ddi_regs_map_setup(devi, reg_rnumber, 512 (caddr_t *)&softc->regs.addr, reg_offset, VGA_REG_SIZE, 513 &dev_attr, &softc->regs.handle); 514 if (error != DDI_SUCCESS) 515 goto fail; 516 softc->regs.mapped = B_TRUE; 517 518 softc->fb_size = VGA_MEM_SIZE; 519 520 error = ddi_regs_map_setup(devi, softc->fb_regno, 521 (caddr_t *)&softc->fb.addr, 522 mem_offset, softc->fb_size, 523 &dev_attr, &softc->fb.handle); 524 if (error != DDI_SUCCESS) 525 goto fail; 526 softc->fb.mapped = B_TRUE; 527 528 if (ddi_get8(softc->regs.handle, 529 softc->regs.addr + VGA_MISC_R) & VGA_MISC_IOA_SEL) 530 softc->text_base = (caddr_t)softc->fb.addr + VGA_COLOR_BASE; 531 else 532 softc->text_base = (caddr_t)softc->fb.addr + VGA_MONO_BASE; 533 534 if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(), 535 DDI_PROP_DONTPASS, "console", &cons) == DDI_SUCCESS) { 536 if (strcmp(cons, "graphics") == 0) { 537 happyface_boot = 1; 538 vgatext_silent = 1; 539 softc->current_base = softc->shadow; 540 } else { 541 softc->current_base = softc->text_base; 542 } 543 ddi_prop_free(cons); 544 } else { 545 softc->current_base = softc->text_base; 546 } 547 548 (void) sprintf(buf, "text-%d", unit); 549 error = ddi_create_minor_node(devi, buf, S_IFCHR, 550 INST2NODE1(unit), DDI_NT_DISPLAY, NULL); 551 if (error != DDI_SUCCESS) 552 goto fail; 553 554 error = ddi_prop_create(makedevice(DDI_MAJOR_T_UNKNOWN, unit), 555 devi, DDI_PROP_CANSLEEP, DDI_KERNEL_IOCTL, NULL, 0); 556 if (error != DDI_SUCCESS) 557 goto fail; 558 559 vgatext_check_for_console(devi, softc, pci_pcie_bus); 560 561 /* only do this if not in graphics mode */ 562 if ((vgatext_silent == 0) && (VGATEXT_IS_CONSOLE(softc))) { 563 vgatext_init(softc); 564 vgatext_save_colormap(softc); 565 } 566 567 if (agpm != 0) { /* try AGP master attach */ 568 /* setup mapping for PCI config space access */ 569 softc->pci_cfg_hdlp = (ddi_acc_handle_t *) 570 kmem_zalloc(sizeof (ddi_acc_handle_t), KM_SLEEP); 571 error = pci_config_setup(devi, softc->pci_cfg_hdlp); 572 if (error != DDI_SUCCESS) { 573 cmn_err(CE_WARN, "vgatext_attach: " 574 "PCI configuration space setup failed"); 575 goto fail; 576 } 577 578 (void) agpmaster_attach(softc->devi, &softc->agp_master, 579 *softc->pci_cfg_hdlp, INST2NODE2(unit)); 580 } 581 582 return (DDI_SUCCESS); 583 584 fail: 585 if (parent_type != NULL) 586 ddi_prop_free(parent_type); 587 (void) vgatext_detach(devi, DDI_DETACH); 588 return (error); 589 } 590 591 static int 592 vgatext_detach(dev_info_t *devi, ddi_detach_cmd_t cmd) 593 { 594 int instance = ddi_get_instance(devi); 595 struct vgatext_softc *softc = getsoftc(instance); 596 597 598 switch (cmd) { 599 case DDI_DETACH: 600 if (softc->agp_master != NULL) { /* agp initiated */ 601 agpmaster_detach(&softc->agp_master); 602 pci_config_teardown(softc->pci_cfg_hdlp); 603 } 604 605 if (softc->fb.mapped) 606 ddi_regs_map_free(&softc->fb.handle); 607 if (softc->regs.mapped) 608 ddi_regs_map_free(&softc->regs.handle); 609 mutex_destroy(&(softc->lock)); 610 ddi_remove_minor_node(devi, NULL); 611 (void) ddi_soft_state_free(vgatext_softc_head, instance); 612 return (DDI_SUCCESS); 613 614 case DDI_SUSPEND: 615 /* 616 * This is a generic VGA file, and therefore, cannot 617 * understand how to deal with suspend and resume on 618 * a generic interface. So we fail any attempt to 619 * suspend. At some point in the future, we might use 620 * this as an entrypoint for display drivers and this 621 * assumption may change. 622 * 623 * However, from a platform development perspective, 624 * it is important that this driver suspend if a 625 * developer is using a serial console and/or working 626 * on a framebuffer driver that will support suspend 627 * and resume. Therefore, we have this module tunable 628 * (purposely using a long name) that will allow for 629 * suspend it it is set. Otherwise we fail. 630 */ 631 if (vgatext_force_suspend != 0) 632 return (DDI_SUCCESS); 633 else 634 return (DDI_FAILURE); 635 636 default: 637 cmn_err(CE_WARN, "vgatext_detach: unknown cmd 0x%x\n", cmd); 638 return (DDI_FAILURE); 639 } 640 } 641 642 /*ARGSUSED*/ 643 static int 644 vgatext_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result) 645 { 646 dev_t dev; 647 int error; 648 int instance; 649 struct vgatext_softc *softc; 650 651 error = DDI_SUCCESS; 652 653 dev = (dev_t)arg; 654 instance = DEV2INST(dev); 655 softc = getsoftc(instance); 656 657 switch (infocmd) { 658 case DDI_INFO_DEVT2DEVINFO: 659 if (softc == NULL || softc->devi == NULL) { 660 error = DDI_FAILURE; 661 } else { 662 *result = (void *) softc->devi; 663 error = DDI_SUCCESS; 664 } 665 break; 666 case DDI_INFO_DEVT2INSTANCE: 667 *result = (void *)(uintptr_t)instance; 668 error = DDI_SUCCESS; 669 break; 670 default: 671 error = DDI_FAILURE; 672 break; 673 } 674 return (error); 675 } 676 677 678 /*ARGSUSED*/ 679 static int 680 vgatext_open(dev_t *devp, int flag, int otyp, cred_t *cred) 681 { 682 struct vgatext_softc *softc = getsoftc(DEV2INST(*devp)); 683 684 if (softc == NULL || otyp == OTYP_BLK) 685 return (ENXIO); 686 687 return (0); 688 } 689 690 /*ARGSUSED*/ 691 static int 692 vgatext_close(dev_t devp, int flag, int otyp, cred_t *cred) 693 { 694 return (0); 695 } 696 697 static int 698 do_gfx_ioctl(int cmd, intptr_t data, int mode, struct vgatext_softc *softc) 699 { 700 static char kernel_only[] = 701 "do_gfx_ioctl: %s is a kernel only ioctl"; 702 int err; 703 int kd_mode; 704 705 switch (cmd) { 706 case KDSETMODE: 707 return (vgatext_kdsetmode(softc, (int)data)); 708 709 case KDGETMODE: 710 kd_mode = softc->mode; 711 if (ddi_copyout(&kd_mode, (void *)data, sizeof (int), mode)) 712 return (EFAULT); 713 break; 714 715 case VIS_GETIDENTIFIER: 716 if (ddi_copyout(&text_ident, (void *)data, 717 sizeof (struct vis_identifier), mode)) 718 return (EFAULT); 719 break; 720 721 case VIS_DEVINIT: 722 723 if (!(mode & FKIOCTL)) { 724 cmn_err(CE_CONT, kernel_only, "VIS_DEVINIT"); 725 return (ENXIO); 726 } 727 728 err = vgatext_devinit(softc, (struct vis_devinit *)data); 729 if (err != 0) { 730 cmn_err(CE_WARN, 731 "vgatext_ioctl: could not initialize console"); 732 return (err); 733 } 734 break; 735 736 case VIS_CONSCOPY: /* move */ 737 { 738 struct vis_conscopy pma; 739 740 if (ddi_copyin((void *)data, &pma, 741 sizeof (struct vis_conscopy), mode)) 742 return (EFAULT); 743 744 vgatext_cons_copy(softc, &pma); 745 break; 746 } 747 748 case VIS_CONSDISPLAY: /* display */ 749 { 750 struct vis_consdisplay display_request; 751 752 if (ddi_copyin((void *)data, &display_request, 753 sizeof (display_request), mode)) 754 return (EFAULT); 755 756 vgatext_cons_display(softc, &display_request); 757 break; 758 } 759 760 case VIS_CONSCURSOR: 761 { 762 struct vis_conscursor cursor_request; 763 764 if (ddi_copyin((void *)data, &cursor_request, 765 sizeof (cursor_request), mode)) 766 return (EFAULT); 767 768 vgatext_cons_cursor(softc, &cursor_request); 769 770 if (cursor_request.action == VIS_GET_CURSOR && 771 ddi_copyout(&cursor_request, (void *)data, 772 sizeof (cursor_request), mode)) 773 return (EFAULT); 774 break; 775 } 776 777 case VIS_GETCMAP: 778 case VIS_PUTCMAP: 779 case FBIOPUTCMAP: 780 case FBIOGETCMAP: 781 /* 782 * At the moment, text mode is not considered to have 783 * a color map. 784 */ 785 return (EINVAL); 786 787 case FBIOGATTR: 788 if (copyout(&vgatext_attr, (void *)data, 789 sizeof (struct fbgattr))) 790 return (EFAULT); 791 break; 792 793 case FBIOGTYPE: 794 if (copyout(&vgatext_attr.fbtype, (void *)data, 795 sizeof (struct fbtype))) 796 return (EFAULT); 797 break; 798 799 default: 800 return (ENXIO); 801 } 802 return (0); 803 } 804 805 806 /*ARGSUSED*/ 807 static int 808 vgatext_ioctl( 809 dev_t dev, 810 int cmd, 811 intptr_t data, 812 int mode, 813 cred_t *cred, 814 int *rval) 815 { 816 struct vgatext_softc *softc = getsoftc(DEV2INST(dev)); 817 int err; 818 819 switch (DEV2MINOR(dev)) { 820 case GFX_MINOR: 821 mutex_enter(&(softc->lock)); 822 err = do_gfx_ioctl(cmd, data, mode, softc); 823 mutex_exit(&(softc->lock)); 824 break; 825 826 case AGPMASTER_MINOR: 827 err = agpmaster_ioctl(dev, cmd, data, mode, cred, rval, 828 softc->agp_master); 829 break; 830 831 default: 832 /* not a valid minor node */ 833 return (EBADF); 834 } 835 return (err); 836 } 837 838 static void 839 vgatext_save_text(struct vgatext_softc *softc) 840 { 841 unsigned i; 842 843 for (i = 0; i < sizeof (softc->shadow); i++) 844 softc->shadow[i] = softc->current_base[i]; 845 } 846 847 static void 848 vgatext_progressbar_stop() 849 { 850 extern void progressbar_stop(void); 851 852 if (vgatext_silent == 1) { 853 vgatext_silent = 0; 854 progressbar_stop(); 855 } 856 } 857 858 static void 859 vgatext_kdsettext(struct vgatext_softc *softc) 860 { 861 int i; 862 863 vgatext_init(softc); 864 for (i = 0; i < sizeof (softc->shadow); i++) { 865 softc->text_base[i] = softc->shadow[i]; 866 } 867 softc->current_base = softc->text_base; 868 if (softc->cursor.visible) { 869 vgatext_set_cursor(softc, 870 softc->cursor.row, softc->cursor.col); 871 } 872 vgatext_restore_colormap(softc); 873 } 874 875 static void 876 vgatext_kdsetgraphics(struct vgatext_softc *softc) 877 { 878 vgatext_progressbar_stop(); 879 vgatext_save_text(softc); 880 softc->current_base = softc->shadow; 881 #if defined(USE_BORDERS) 882 vgatext_init_graphics(softc); 883 #endif 884 } 885 886 static int 887 vgatext_kdsetmode(struct vgatext_softc *softc, int mode) 888 { 889 if ((mode == softc->mode) || (!VGATEXT_IS_CONSOLE(softc))) 890 return (0); 891 892 switch (mode) { 893 case KD_TEXT: 894 vgatext_kdsettext(softc); 895 break; 896 897 case KD_GRAPHICS: 898 vgatext_kdsetgraphics(softc); 899 break; 900 901 case KD_RESETTEXT: 902 /* 903 * In order to avoid racing with a starting X server, 904 * this needs to be a test and set that is performed in 905 * a single (softc->lock protected) ioctl into this driver. 906 */ 907 if (softc->mode == KD_TEXT && vgatext_silent == 1) { 908 vgatext_progressbar_stop(); 909 vgatext_kdsettext(softc); 910 } 911 break; 912 913 default: 914 return (EINVAL); 915 } 916 softc->mode = mode; 917 return (0); 918 } 919 920 /*ARGSUSED*/ 921 static int 922 vgatext_devmap(dev_t dev, devmap_cookie_t dhp, offset_t off, size_t len, 923 size_t *maplen, uint_t model) 924 { 925 struct vgatext_softc *softc; 926 int err; 927 size_t length; 928 929 930 softc = getsoftc(DEV2INST(dev)); 931 if (softc == NULL) { 932 cmn_err(CE_WARN, "vgatext: Can't find softstate"); 933 return (-1); 934 } 935 936 if (!(off >= VGA_MMAP_FB_BASE && 937 off < VGA_MMAP_FB_BASE + softc->fb_size)) { 938 cmn_err(CE_WARN, "vgatext: Can't map offset 0x%llx", off); 939 return (-1); 940 } 941 942 if (off + len > VGA_MMAP_FB_BASE + softc->fb_size) 943 length = VGA_MMAP_FB_BASE + softc->fb_size - off; 944 else 945 length = len; 946 947 if ((err = devmap_devmem_setup(dhp, softc->devi, NULL, softc->fb_regno, 948 off - VGA_MMAP_FB_BASE, 949 length, PROT_ALL, 0, &dev_attr)) < 0) { 950 return (err); 951 } 952 953 954 *maplen = length; 955 return (0); 956 } 957 958 959 static int 960 vgatext_devinit(struct vgatext_softc *softc, struct vis_devinit *data) 961 { 962 /* initialize console instance */ 963 data->version = VIS_CONS_REV; 964 data->width = TEXT_COLS; 965 data->height = TEXT_ROWS; 966 data->linebytes = TEXT_COLS; 967 data->depth = 4; 968 data->mode = VIS_TEXT; 969 data->polledio = &softc->polledio; 970 971 return (0); 972 } 973 974 /* 975 * display a string on the screen at (row, col) 976 * assume it has been cropped to fit. 977 */ 978 979 static void 980 vgatext_cons_display(struct vgatext_softc *softc, struct vis_consdisplay *da) 981 { 982 unsigned char *string; 983 int i; 984 unsigned char attr; 985 struct cgatext { 986 unsigned char ch; 987 unsigned char attr; 988 }; 989 struct cgatext *addr; 990 991 /* 992 * Sanity checks. This is a last-ditch effort to avoid damage 993 * from brokenness or maliciousness above. 994 */ 995 if (da->row < 0 || da->row >= TEXT_ROWS || 996 da->col < 0 || da->col >= TEXT_COLS || 997 da->col + da->width > TEXT_COLS) 998 return; 999 1000 /* 1001 * To be fully general, we should copyin the data. This is not 1002 * really relevant for this text-only driver, but a graphical driver 1003 * should support these ioctls from userland to enable simple 1004 * system startup graphics. 1005 */ 1006 attr = (solaris_color_to_pc_color[da->bg_color & 0xf] << 4) 1007 | solaris_color_to_pc_color[da->fg_color & 0xf]; 1008 string = da->data; 1009 addr = (struct cgatext *)softc->current_base 1010 + (da->row * TEXT_COLS + da->col); 1011 for (i = 0; i < da->width; i++) { 1012 addr->ch = string[i]; 1013 addr->attr = attr; 1014 addr++; 1015 } 1016 } 1017 1018 static void 1019 vgatext_polled_display( 1020 struct vis_polledio_arg *arg, 1021 struct vis_consdisplay *da) 1022 { 1023 vgatext_cons_display((struct vgatext_softc *)arg, da); 1024 } 1025 1026 /* 1027 * screen-to-screen copy 1028 */ 1029 1030 static void 1031 vgatext_cons_copy(struct vgatext_softc *softc, struct vis_conscopy *ma) 1032 { 1033 unsigned short *from; 1034 unsigned short *to; 1035 int cnt; 1036 screen_size_t chars_per_row; 1037 unsigned short *to_row_start; 1038 unsigned short *from_row_start; 1039 screen_size_t rows_to_move; 1040 unsigned short *base; 1041 1042 /* 1043 * Sanity checks. Note that this is a last-ditch effort to avoid 1044 * damage caused by broken-ness or maliciousness above. 1045 */ 1046 if (ma->s_col < 0 || ma->s_col >= TEXT_COLS || 1047 ma->s_row < 0 || ma->s_row >= TEXT_ROWS || 1048 ma->e_col < 0 || ma->e_col >= TEXT_COLS || 1049 ma->e_row < 0 || ma->e_row >= TEXT_ROWS || 1050 ma->t_col < 0 || ma->t_col >= TEXT_COLS || 1051 ma->t_row < 0 || ma->t_row >= TEXT_ROWS || 1052 ma->s_col > ma->e_col || 1053 ma->s_row > ma->e_row) 1054 return; 1055 1056 /* 1057 * Remember we're going to copy shorts because each 1058 * character/attribute pair is 16 bits. 1059 */ 1060 chars_per_row = ma->e_col - ma->s_col + 1; 1061 rows_to_move = ma->e_row - ma->s_row + 1; 1062 1063 /* More sanity checks. */ 1064 if (ma->t_row + rows_to_move > TEXT_ROWS || 1065 ma->t_col + chars_per_row > TEXT_COLS) 1066 return; 1067 1068 base = (unsigned short *)softc->current_base; 1069 1070 to_row_start = base + ((ma->t_row * TEXT_COLS) + ma->t_col); 1071 from_row_start = base + ((ma->s_row * TEXT_COLS) + ma->s_col); 1072 1073 if (to_row_start < from_row_start) { 1074 while (rows_to_move-- > 0) { 1075 to = to_row_start; 1076 from = from_row_start; 1077 to_row_start += TEXT_COLS; 1078 from_row_start += TEXT_COLS; 1079 for (cnt = chars_per_row; cnt-- > 0; ) 1080 *to++ = *from++; 1081 } 1082 } else { 1083 /* 1084 * Offset to the end of the region and copy backwards. 1085 */ 1086 cnt = rows_to_move * TEXT_COLS + chars_per_row; 1087 to_row_start += cnt; 1088 from_row_start += cnt; 1089 1090 while (rows_to_move-- > 0) { 1091 to_row_start -= TEXT_COLS; 1092 from_row_start -= TEXT_COLS; 1093 to = to_row_start; 1094 from = from_row_start; 1095 for (cnt = chars_per_row; cnt-- > 0; ) 1096 *--to = *--from; 1097 } 1098 } 1099 } 1100 1101 static void 1102 vgatext_polled_copy( 1103 struct vis_polledio_arg *arg, 1104 struct vis_conscopy *ca) 1105 { 1106 vgatext_cons_copy((struct vgatext_softc *)arg, ca); 1107 } 1108 1109 1110 static void 1111 vgatext_cons_cursor(struct vgatext_softc *softc, struct vis_conscursor *ca) 1112 { 1113 if (vgatext_silent) 1114 return; 1115 1116 switch (ca->action) { 1117 case VIS_HIDE_CURSOR: 1118 softc->cursor.visible = B_FALSE; 1119 if (softc->current_base == softc->text_base) 1120 vgatext_hide_cursor(softc); 1121 break; 1122 case VIS_DISPLAY_CURSOR: 1123 /* 1124 * Sanity check. This is a last-ditch effort to avoid 1125 * damage from brokenness or maliciousness above. 1126 */ 1127 if (ca->col < 0 || ca->col >= TEXT_COLS || 1128 ca->row < 0 || ca->row >= TEXT_ROWS) 1129 return; 1130 1131 softc->cursor.visible = B_TRUE; 1132 softc->cursor.col = ca->col; 1133 softc->cursor.row = ca->row; 1134 if (softc->current_base == softc->text_base) 1135 vgatext_set_cursor(softc, ca->row, ca->col); 1136 break; 1137 case VIS_GET_CURSOR: 1138 if (softc->current_base == softc->text_base) { 1139 vgatext_get_cursor(softc, &ca->row, &ca->col); 1140 } 1141 break; 1142 } 1143 } 1144 1145 static void 1146 vgatext_polled_cursor( 1147 struct vis_polledio_arg *arg, 1148 struct vis_conscursor *ca) 1149 { 1150 vgatext_cons_cursor((struct vgatext_softc *)arg, ca); 1151 } 1152 1153 1154 1155 /*ARGSUSED*/ 1156 static void 1157 vgatext_hide_cursor(struct vgatext_softc *softc) 1158 { 1159 /* Nothing at present */ 1160 } 1161 1162 static void 1163 vgatext_set_cursor(struct vgatext_softc *softc, int row, int col) 1164 { 1165 short addr; 1166 1167 if (vgatext_silent) 1168 return; 1169 1170 addr = row * TEXT_COLS + col; 1171 1172 vga_set_crtc(&softc->regs, VGA_CRTC_CLAH, addr >> 8); 1173 vga_set_crtc(&softc->regs, VGA_CRTC_CLAL, addr & 0xff); 1174 } 1175 1176 static int vga_row, vga_col; 1177 1178 static void 1179 vgatext_get_cursor(struct vgatext_softc *softc, 1180 screen_pos_t *row, screen_pos_t *col) 1181 { 1182 short addr; 1183 1184 addr = (vga_get_crtc(&softc->regs, VGA_CRTC_CLAH) << 8) + 1185 vga_get_crtc(&softc->regs, VGA_CRTC_CLAL); 1186 1187 vga_row = *row = addr / TEXT_COLS; 1188 vga_col = *col = addr % TEXT_COLS; 1189 } 1190 1191 /* 1192 * This code is experimental. It's only enabled if console is 1193 * set to graphics, a preliminary implementation of happyface boot. 1194 */ 1195 static void 1196 vgatext_set_text(struct vgatext_softc *softc) 1197 { 1198 int i; 1199 1200 if (happyface_boot == 0) 1201 return; 1202 1203 /* we are in graphics mode, set to text 80X25 mode */ 1204 1205 /* set misc registers */ 1206 vga_set_reg(&softc->regs, VGA_MISC_W, VGA_MISC_TEXT); 1207 1208 /* set sequencer registers */ 1209 vga_set_seq(&softc->regs, VGA_SEQ_RST_SYN, 1210 (vga_get_seq(&softc->regs, VGA_SEQ_RST_SYN) & 1211 ~VGA_SEQ_RST_SYN_NO_SYNC_RESET)); 1212 for (i = 1; i < NUM_SEQ_REG; i++) { 1213 vga_set_seq(&softc->regs, i, VGA_SEQ_TEXT[i]); 1214 } 1215 vga_set_seq(&softc->regs, VGA_SEQ_RST_SYN, 1216 (vga_get_seq(&softc->regs, VGA_SEQ_RST_SYN) | 1217 VGA_SEQ_RST_SYN_NO_ASYNC_RESET | 1218 VGA_SEQ_RST_SYN_NO_SYNC_RESET)); 1219 1220 /* set crt controller registers */ 1221 vga_set_crtc(&softc->regs, VGA_CRTC_VRE, 1222 (vga_get_crtc(&softc->regs, VGA_CRTC_VRE) & 1223 ~VGA_CRTC_VRE_LOCK)); 1224 for (i = 0; i < NUM_CRTC_REG; i++) { 1225 vga_set_crtc(&softc->regs, i, VGA_CRTC_TEXT[i]); 1226 } 1227 1228 /* set graphics controller registers */ 1229 for (i = 0; i < NUM_GRC_REG; i++) { 1230 vga_set_grc(&softc->regs, i, VGA_GRC_TEXT[i]); 1231 } 1232 1233 /* set attribute registers */ 1234 for (i = 0; i < NUM_ATR_REG; i++) { 1235 vga_set_atr(&softc->regs, i, VGA_ATR_TEXT[i]); 1236 } 1237 1238 /* set palette */ 1239 for (i = 0; i < VGA_TEXT_CMAP_ENTRIES; i++) { 1240 vga_put_cmap(&softc->regs, i, VGA_TEXT_PALETTES[i][0] << 2, 1241 VGA_TEXT_PALETTES[i][1] << 2, 1242 VGA_TEXT_PALETTES[i][2] << 2); 1243 } 1244 for (i = VGA_TEXT_CMAP_ENTRIES; i < VGA8_CMAP_ENTRIES; i++) { 1245 vga_put_cmap(&softc->regs, i, 0, 0, 0); 1246 } 1247 1248 vgatext_save_colormap(softc); 1249 } 1250 1251 static void 1252 vgatext_init(struct vgatext_softc *softc) 1253 { 1254 unsigned char atr_mode; 1255 1256 atr_mode = vga_get_atr(&softc->regs, VGA_ATR_MODE); 1257 if (atr_mode & VGA_ATR_MODE_GRAPH) 1258 vgatext_set_text(softc); 1259 atr_mode = vga_get_atr(&softc->regs, VGA_ATR_MODE); 1260 atr_mode &= ~VGA_ATR_MODE_BLINK; 1261 atr_mode &= ~VGA_ATR_MODE_9WIDE; 1262 vga_set_atr(&softc->regs, VGA_ATR_MODE, atr_mode); 1263 #if defined(USE_BORDERS) 1264 vga_set_atr(&softc->regs, VGA_ATR_BDR_CLR, 1265 vga_get_atr(&softc->regs, VGA_BRIGHT_WHITE)); 1266 #else 1267 vga_set_atr(&softc->regs, VGA_ATR_BDR_CLR, 1268 vga_get_atr(&softc->regs, VGA_BLACK)); 1269 #endif 1270 vgatext_setfont(softc); /* need selectable font? */ 1271 } 1272 1273 #if defined(USE_BORDERS) 1274 static void 1275 vgatext_init_graphics(struct vgatext_softc *softc) 1276 { 1277 vga_set_atr(&softc->regs, VGA_ATR_BDR_CLR, 1278 vga_get_atr(&softc->regs, VGA_BLACK)); 1279 } 1280 #endif 1281 1282 static char vga_fontslot = 0; 1283 1284 static void 1285 vgatext_setfont(struct vgatext_softc *softc) 1286 { 1287 static uchar_t fsreg[8] = {0x0, 0x30, 0x5, 0x35, 0xa, 0x3a, 0xf, 0x3f}; 1288 1289 extern unsigned char *ENCODINGS[]; 1290 uchar_t *from; 1291 uchar_t volatile *to; 1292 int i, j, s; 1293 int bpc, f_offset; 1294 1295 /* Sync-reset the sequencer registers */ 1296 vga_set_seq(&softc->regs, 0x00, 0x01); 1297 /* 1298 * enable write to plane2, since fonts 1299 * could only be loaded into plane2 1300 */ 1301 vga_set_seq(&softc->regs, 0x02, 0x04); 1302 /* 1303 * sequentially access data in the bit map being 1304 * selected by MapMask register (index 0x02) 1305 */ 1306 vga_set_seq(&softc->regs, 0x04, 0x07); 1307 /* Sync-reset ended, and allow the sequencer to operate */ 1308 vga_set_seq(&softc->regs, 0x00, 0x03); 1309 1310 /* 1311 * select plane 2 on Read Mode 0 1312 */ 1313 vga_set_grc(&softc->regs, 0x04, 0x02); 1314 /* 1315 * system addresses sequentially access data, follow 1316 * Memory Mode register bit 2 in the sequencer 1317 */ 1318 vga_set_grc(&softc->regs, 0x05, 0x00); 1319 /* 1320 * set range of host memory addresses decoded by VGA 1321 * hardware -- A0000h-BFFFFh (128K region) 1322 */ 1323 vga_set_grc(&softc->regs, 0x06, 0x00); 1324 1325 /* 1326 * This assumes 8x16 characters, which yield the traditional 80x25 1327 * screen. It really should support other character heights. 1328 */ 1329 bpc = 16; 1330 s = vga_fontslot; 1331 f_offset = s * 8 * 1024; 1332 for (i = 0; i < 256; i++) { 1333 from = ENCODINGS[i]; 1334 to = (unsigned char *)softc->fb.addr + f_offset + i * 0x20; 1335 for (j = 0; j < bpc; j++) 1336 *to++ = *from++; 1337 } 1338 1339 /* Sync-reset the sequencer registers */ 1340 vga_set_seq(&softc->regs, 0x00, 0x01); 1341 /* enable write to plane 0 and 1 */ 1342 vga_set_seq(&softc->regs, 0x02, 0x03); 1343 /* 1344 * enable character map selection 1345 * and odd/even addressing 1346 */ 1347 vga_set_seq(&softc->regs, 0x04, 0x03); 1348 /* 1349 * select font map 1350 */ 1351 vga_set_seq(&softc->regs, 0x03, fsreg[s]); 1352 /* Sync-reset ended, and allow the sequencer to operate */ 1353 vga_set_seq(&softc->regs, 0x00, 0x03); 1354 1355 /* restore graphic registers */ 1356 1357 /* select plane 0 */ 1358 vga_set_grc(&softc->regs, 0x04, 0x00); 1359 /* enable odd/even addressing mode */ 1360 vga_set_grc(&softc->regs, 0x05, 0x10); 1361 /* 1362 * range of host memory addresses decoded by VGA 1363 * hardware -- B8000h-BFFFFh (32K region) 1364 */ 1365 vga_set_grc(&softc->regs, 0x06, 0x0e); 1366 /* enable all color plane */ 1367 vga_set_atr(&softc->regs, 0x12, 0x0f); 1368 1369 } 1370 1371 static void 1372 vgatext_save_colormap(struct vgatext_softc *softc) 1373 { 1374 int i; 1375 1376 for (i = 0; i < VGA_ATR_NUM_PLT; i++) { 1377 softc->attrib_palette[i] = vga_get_atr(&softc->regs, i); 1378 } 1379 for (i = 0; i < VGA8_CMAP_ENTRIES; i++) { 1380 vga_get_cmap(&softc->regs, i, 1381 &softc->colormap[i].red, 1382 &softc->colormap[i].green, 1383 &softc->colormap[i].blue); 1384 } 1385 } 1386 1387 static void 1388 vgatext_restore_colormap(struct vgatext_softc *softc) 1389 { 1390 int i; 1391 1392 for (i = 0; i < VGA_ATR_NUM_PLT; i++) { 1393 vga_set_atr(&softc->regs, i, softc->attrib_palette[i]); 1394 } 1395 for (i = 0; i < VGA8_CMAP_ENTRIES; i++) { 1396 vga_put_cmap(&softc->regs, i, 1397 softc->colormap[i].red, 1398 softc->colormap[i].green, 1399 softc->colormap[i].blue); 1400 } 1401 } 1402 1403 /* 1404 * search the entries of the "reg" property for one which has the desired 1405 * combination of phys_hi bits and contains the desired address. 1406 * 1407 * This version searches a PCI-style "reg" property. It was prompted by 1408 * issues surrounding the presence or absence of an entry for the ROM: 1409 * (a) a transition problem with PowerPC Virtual Open Firmware 1410 * (b) uncertainty as to whether an entry will be included on a device 1411 * with ROM support (and so an "active" ROM base address register), 1412 * but no ROM actually installed. 1413 * 1414 * See the note below on vgatext_get_isa_reg_index for the reasons for 1415 * returning the offset. 1416 * 1417 * Note that this routine may not be fully general; it is intended for the 1418 * specific purpose of finding a couple of particular VGA reg entries and 1419 * may not be suitable for all reg-searching purposes. 1420 */ 1421 static int 1422 vgatext_get_pci_reg_index( 1423 dev_info_t *const devi, 1424 unsigned long himask, 1425 unsigned long hival, 1426 unsigned long addr, 1427 off_t *offset) 1428 { 1429 1430 int length, index; 1431 pci_regspec_t *reg; 1432 1433 if (ddi_getlongprop(DDI_DEV_T_ANY, devi, DDI_PROP_DONTPASS, 1434 "reg", (caddr_t)®, &length) != DDI_PROP_SUCCESS) { 1435 return (-1); 1436 } 1437 1438 for (index = 0; index < length / sizeof (pci_regspec_t); index++) { 1439 if ((reg[index].pci_phys_hi & himask) != hival) 1440 continue; 1441 if (reg[index].pci_size_hi != 0) 1442 continue; 1443 if (reg[index].pci_phys_mid != 0) 1444 continue; 1445 if (reg[index].pci_phys_low > addr) 1446 continue; 1447 if (reg[index].pci_phys_low + reg[index].pci_size_low <= addr) 1448 continue; 1449 1450 *offset = addr - reg[index].pci_phys_low; 1451 kmem_free(reg, (size_t)length); 1452 return (index); 1453 } 1454 kmem_free(reg, (size_t)length); 1455 1456 return (-1); 1457 } 1458 1459 /* 1460 * search the entries of the "reg" property for one which has the desired 1461 * combination of phys_hi bits and contains the desired address. 1462 * 1463 * This version searches a ISA-style "reg" property. It was prompted by 1464 * issues surrounding 8514/A support. By IEEE 1275 compatibility conventions, 1465 * 8514/A registers should have been added after all standard VGA registers. 1466 * Unfortunately, the Solaris/Intel device configuration framework 1467 * (a) lists the 8514/A registers before the video memory, and then 1468 * (b) also sorts the entries so that I/O entries come before memory 1469 * entries. 1470 * 1471 * It returns the "reg" index and offset into that register set. 1472 * The offset is needed because there exist (broken?) BIOSes that 1473 * report larger ranges enclosing the standard ranges. One reports 1474 * 0x3bf for 0x21 instead of 0x3c0 for 0x20, for instance. Using the 1475 * offset adjusts for this difference in the base of the register set. 1476 * 1477 * Note that this routine may not be fully general; it is intended for the 1478 * specific purpose of finding a couple of particular VGA reg entries and 1479 * may not be suitable for all reg-searching purposes. 1480 */ 1481 static int 1482 vgatext_get_isa_reg_index( 1483 dev_info_t *const devi, 1484 unsigned long hival, 1485 unsigned long addr, 1486 off_t *offset) 1487 { 1488 1489 int length, index; 1490 struct regspec *reg; 1491 1492 if (ddi_getlongprop(DDI_DEV_T_ANY, devi, DDI_PROP_DONTPASS, 1493 "reg", (caddr_t)®, &length) != DDI_PROP_SUCCESS) { 1494 return (-1); 1495 } 1496 1497 for (index = 0; index < length / sizeof (struct regspec); index++) { 1498 if (reg[index].regspec_bustype != hival) 1499 continue; 1500 if (reg[index].regspec_addr > addr) 1501 continue; 1502 if (reg[index].regspec_addr + reg[index].regspec_size <= addr) 1503 continue; 1504 1505 *offset = addr - reg[index].regspec_addr; 1506 kmem_free(reg, (size_t)length); 1507 return (index); 1508 } 1509 kmem_free(reg, (size_t)length); 1510 1511 return (-1); 1512 } 1513
Indexes created Thu Nov 26 13:30:14 UTC 2009
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