1 /*- 2 * Copyright (c) 2000 Alcove - Nicolas Souchu <nsouch@freebsd.org> 3 * All rights reserved. 4 * 5 * Code based on Peter Horton <pdh@colonel-panic.com> patch. 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 * 30 */ 31 32 /* Enable LFB on S3 cards that has only VESA 1.2 BIOS */ 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/kernel.h> 37 #include <machine/bus_pio.h> 38 #include <machine/bus_memio.h> 39 #include <machine/bus.h> 40 41 #include <vm/vm.h> 42 #include <vm/vm_extern.h> 43 #include <vm/vm_kern.h> 44 #include <vm/pmap.h> 45 46 #include <sys/uio.h> 47 #include <sys/module.h> 48 #include <sys/bus.h> 49 #include <sys/rman.h> 50 #include <machine/resource.h> 51 52 #include <sys/malloc.h> 53 #include <sys/fbio.h> 54 55 #include <pci/pcireg.h> 56 #include <pci/pcivar.h> 57 58 #include <machine/md_var.h> 59 #include <machine/vm86.h> 60 #include <machine/pc/bios.h> 61 #include <machine/pc/vesa.h> 62 63 #include <dev/fb/fbreg.h> 64 #include <dev/fb/vgareg.h> 65 66 #define S3PCI_DEBUG 1 67 68 #define PCI_S3_VENDOR_ID 0x5333 69 70 #define S3_CONFIG_IO 0x3c0 /* VGA standard config io ports */ 71 #define S3_CONFIG_IO_SIZE 0x20 72 73 #define S3_ENHANCED_IO 0x4ae8 /* Extended config register */ 74 #define S3_ENHANCED_IO_SIZE 1 75 76 #define S3_CRTC_ADDR 0x14 77 #define S3_CRTC_VALUE 0x15 78 79 #define PCI_BASE_MEMORY 0x10 80 81 #define outb_p(value, offset) bus_space_write_1(sc->st, sc->sh, offset, value) 82 #define inb_p(offset) (bus_space_read_1(sc->st, sc->sh, offset)) 83 #define outb_enh(value, offset) bus_space_write_1(sc->enh_st, sc->enh_sh, \ 84 offset, value) 85 #define inb_enh(offset) (bus_space_read_1(sc->enh_st, sc->enh_sh, offset)) 86 87 struct s3pci_softc { 88 bus_space_tag_t st; 89 bus_space_handle_t sh; 90 bus_space_tag_t enh_st; 91 bus_space_handle_t enh_sh; 92 struct resource *port_res; 93 struct resource *enh_res; 94 struct resource *mem_res; 95 u_long mem_base; 96 u_long mem_size; 97 }; 98 99 static int s3lfb_error(void); 100 static vi_probe_t s3lfb_probe; 101 static vi_init_t s3lfb_init; 102 static vi_get_info_t s3lfb_get_info; 103 static vi_query_mode_t s3lfb_query_mode; 104 static vi_set_mode_t s3lfb_set_mode; 105 static vi_save_font_t s3lfb_save_font; 106 static vi_load_font_t s3lfb_load_font; 107 static vi_show_font_t s3lfb_show_font; 108 static vi_save_palette_t s3lfb_save_palette; 109 static vi_load_palette_t s3lfb_load_palette; 110 static vi_set_border_t s3lfb_set_border; 111 static vi_save_state_t s3lfb_save_state; 112 static vi_load_state_t s3lfb_load_state; 113 static vi_set_win_org_t s3lfb_set_origin; 114 static vi_read_hw_cursor_t s3lfb_read_hw_cursor; 115 static vi_set_hw_cursor_t s3lfb_set_hw_cursor; 116 static vi_set_hw_cursor_shape_t s3lfb_set_hw_cursor_shape; 117 static vi_blank_display_t s3lfb_blank_display; 118 static vi_mmap_t s3lfb_mmap; 119 static vi_ioctl_t s3lfb_ioctl; 120 static vi_clear_t s3lfb_clear; 121 static vi_fill_rect_t s3lfb_fill_rect; 122 static vi_bitblt_t s3lfb_bitblt; 123 static vi_diag_t s3lfb_diag; 124 125 static video_switch_t s3lfbvidsw = { 126 s3lfb_probe, 127 s3lfb_init, 128 s3lfb_get_info, 129 s3lfb_query_mode, 130 s3lfb_set_mode, 131 s3lfb_save_font, 132 s3lfb_load_font, 133 s3lfb_show_font, 134 s3lfb_save_palette, 135 s3lfb_load_palette, 136 s3lfb_set_border, 137 s3lfb_save_state, 138 s3lfb_load_state, 139 s3lfb_set_origin, 140 s3lfb_read_hw_cursor, 141 s3lfb_set_hw_cursor, 142 s3lfb_set_hw_cursor_shape, 143 s3lfb_blank_display, 144 s3lfb_mmap, 145 s3lfb_ioctl, 146 s3lfb_clear, 147 s3lfb_fill_rect, 148 s3lfb_bitblt, 149 s3lfb_error, 150 s3lfb_error, 151 s3lfb_diag, 152 }; 153 154 static video_switch_t *prevvidsw; 155 static device_t s3pci_dev = NULL; 156 157 static int 158 s3lfb_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 159 { 160 return (*prevvidsw->probe)(unit, adpp, arg, flags); 161 } 162 163 static int 164 s3lfb_init(int unit, video_adapter_t *adp, int flags) 165 { 166 return (*prevvidsw->init)(unit, adp, flags); 167 } 168 169 static int 170 s3lfb_get_info(video_adapter_t *adp, int mode, video_info_t *info) 171 { 172 device_t dev = s3pci_dev; /* XXX */ 173 struct s3pci_softc *sc = (struct s3pci_softc *)device_get_softc(dev); 174 int error; 175 176 if ((error = (*prevvidsw->get_info)(adp, mode, info))) 177 return error; 178 179 #if 0 180 /* Don't use linear addressing with text modes 181 */ 182 if ((mode > M_VESA_BASE) && 183 (info->vi_flags & V_INFO_GRAPHICS) && 184 !(info->vi_flags & V_INFO_LINEAR)) { 185 186 info->vi_flags |= V_INFO_LINEAR; 187 info->vi_buffer = sc->mem_base; 188 189 } else { 190 info->vi_buffer = 0; 191 } 192 #endif 193 194 return 0; 195 } 196 197 static int 198 s3lfb_query_mode(video_adapter_t *adp, video_info_t *info) 199 { 200 return (*prevvidsw->query_mode)(adp, info); 201 } 202 203 static vm_offset_t 204 s3lfb_map_buffer(u_int paddr, size_t size) 205 { 206 vm_offset_t vaddr; 207 u_int off; 208 209 off = paddr - trunc_page(paddr); 210 vaddr = (vm_offset_t)pmap_mapdev(paddr - off, size + off); 211 212 return (vaddr + off); 213 } 214 215 static int 216 s3lfb_set_mode(video_adapter_t *adp, int mode) 217 { 218 device_t dev = s3pci_dev; /* XXX */ 219 struct s3pci_softc *sc = (struct s3pci_softc *)device_get_softc(dev); 220 u_long cr59, cr5A; 221 unsigned char tmp; 222 int error; 223 224 /* First, set the mode as if it was a classic VESA card 225 */ 226 if ((error = (*prevvidsw->set_mode)(adp, mode))) 227 return error; 228 229 /* If not in a linear mode (according to s3lfb_get_info() called 230 * by vesa_set_mode in the (*vidsw[adp->va_index]->get_info)... 231 * sequence, return with no error 232 */ 233 #if 0 234 if (!(adp->va_info.vi_flags & V_INFO_LINEAR)) 235 return 0; 236 #endif 237 238 if ((mode <= M_VESA_BASE) || 239 !(adp->va_info.vi_flags & V_INFO_GRAPHICS) || 240 (adp->va_info.vi_flags & V_INFO_LINEAR)) 241 return 0; 242 243 /* Ok, now apply the configuration to the card */ 244 245 outb_p(0x38, S3_CRTC_ADDR); outb_p(0x48, S3_CRTC_VALUE); 246 outb_p(0x39, S3_CRTC_ADDR); outb_p(0xa5, S3_CRTC_VALUE); 247 248 /* check that CR47 is read/write */ 249 250 #if 0 251 outb_p(0x47, S3_CRTC_ADDR); outb_p(0xff, S3_CRTC_VALUE); 252 tmp = inb_p(S3_CRTC_VALUE); 253 outb_p(0x00, S3_CRTC_VALUE); 254 if ((tmp != 0xff) || (inb_p(S3_CRTC_VALUE))) 255 { 256 /* lock S3 registers */ 257 258 outb_p(0x39, S3_CRTC_ADDR); outb_p(0x5a, S3_CRTC_VALUE); 259 outb_p(0x38, S3_CRTC_ADDR); outb_p(0x00, S3_CRTC_VALUE); 260 261 return ENXIO; 262 } 263 #endif 264 265 /* enable enhanced register access */ 266 267 outb_p(0x40, S3_CRTC_ADDR); 268 outb_p(inb_p(S3_CRTC_VALUE) | 1, S3_CRTC_VALUE); 269 270 /* enable enhanced functions */ 271 272 outb_enh(inb_enh(0) | 1, 0x0); 273 274 /* enable enhanced mode memory mapping */ 275 276 outb_p(0x31, S3_CRTC_ADDR); 277 outb_p(inb_p(S3_CRTC_VALUE) | 8, S3_CRTC_VALUE); 278 279 /* enable linear frame buffer and set address window to max */ 280 281 outb_p(0x58, S3_CRTC_ADDR); 282 outb_p(inb_p(S3_CRTC_VALUE) | 0x13, S3_CRTC_VALUE); 283 284 /* disabled enhanced register access */ 285 286 outb_p(0x40, S3_CRTC_ADDR); 287 outb_p(inb_p(S3_CRTC_VALUE) & ~1, S3_CRTC_VALUE); 288 289 /* lock S3 registers */ 290 291 outb_p(0x39, S3_CRTC_ADDR); outb_p(0x5a, S3_CRTC_VALUE); 292 outb_p(0x38, S3_CRTC_ADDR); outb_p(0x00, S3_CRTC_VALUE); 293 294 adp->va_info.vi_flags |= V_INFO_LINEAR; 295 adp->va_info.vi_buffer = sc->mem_base; 296 adp->va_buffer = s3lfb_map_buffer(adp->va_info.vi_buffer, 297 adp->va_info.vi_buffer_size); 298 adp->va_buffer_size = adp->va_info.vi_buffer_size; 299 adp->va_window = adp->va_buffer; 300 adp->va_window_size = adp->va_info.vi_buffer_size/adp->va_info.vi_planes; 301 adp->va_window_gran = adp->va_info.vi_buffer_size/adp->va_info.vi_planes; 302 303 return 0; 304 } 305 306 static int 307 s3lfb_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 308 int ch, int count) 309 { 310 return (*prevvidsw->save_font)(adp, page, fontsize, data, ch, count); 311 } 312 313 static int 314 s3lfb_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 315 int ch, int count) 316 { 317 return (*prevvidsw->load_font)(adp, page, fontsize, data, ch, count); 318 } 319 320 static int 321 s3lfb_show_font(video_adapter_t *adp, int page) 322 { 323 return (*prevvidsw->show_font)(adp, page); 324 } 325 326 static int 327 s3lfb_save_palette(video_adapter_t *adp, u_char *palette) 328 { 329 return (*prevvidsw->save_palette)(adp, palette); 330 } 331 332 static int 333 s3lfb_load_palette(video_adapter_t *adp, u_char *palette) 334 { 335 return (*prevvidsw->load_palette)(adp, palette); 336 } 337 338 static int 339 s3lfb_set_border(video_adapter_t *adp, int color) 340 { 341 return (*prevvidsw->set_border)(adp, color); 342 } 343 344 static int 345 s3lfb_save_state(video_adapter_t *adp, void *p, size_t size) 346 { 347 return (*prevvidsw->save_state)(adp, p, size); 348 } 349 350 static int 351 s3lfb_load_state(video_adapter_t *adp, void *p) 352 { 353 return (*prevvidsw->load_state)(adp, p); 354 } 355 356 static int 357 s3lfb_set_origin(video_adapter_t *adp, off_t offset) 358 { 359 return (*prevvidsw->set_win_org)(adp, offset); 360 } 361 362 static int 363 s3lfb_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 364 { 365 return (*prevvidsw->read_hw_cursor)(adp, col, row); 366 } 367 368 static int 369 s3lfb_set_hw_cursor(video_adapter_t *adp, int col, int row) 370 { 371 return (*prevvidsw->set_hw_cursor)(adp, col, row); 372 } 373 374 static int 375 s3lfb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 376 int celsize, int blink) 377 { 378 return (*prevvidsw->set_hw_cursor_shape)(adp, base, height, 379 celsize, blink); 380 } 381 382 static int 383 s3lfb_blank_display(video_adapter_t *adp, int mode) 384 { 385 return (*prevvidsw->blank_display)(adp, mode); 386 } 387 388 static int 389 s3lfb_mmap(video_adapter_t *adp, vm_offset_t offset, int prot) 390 { 391 return (*prevvidsw->mmap)(adp, offset, prot); 392 } 393 394 static int 395 s3lfb_clear(video_adapter_t *adp) 396 { 397 return (*prevvidsw->clear)(adp); 398 } 399 400 static int 401 s3lfb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 402 { 403 return (*prevvidsw->fill_rect)(adp, val, x, y, cx, cy); 404 } 405 406 static int 407 s3lfb_bitblt(video_adapter_t *adp,...) 408 { 409 return (*prevvidsw->bitblt)(adp); /* XXX */ 410 } 411 412 static int 413 s3lfb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 414 { 415 return (*prevvidsw->ioctl)(adp, cmd, arg); 416 } 417 418 static int 419 s3lfb_diag(video_adapter_t *adp, int level) 420 { 421 return (*prevvidsw->diag)(adp, level); 422 } 423 424 static int 425 s3lfb_error(void) 426 { 427 return 1; 428 } 429 430 /***********************************/ 431 /* PCI detection/attachement stuff */ 432 /***********************************/ 433 434 static int 435 s3pci_probe(device_t dev) 436 { 437 u_int32_t vendor, class, subclass, device_id; 438 439 device_id = pci_get_devid(dev); 440 vendor = device_id & 0xffff; 441 class = pci_get_class(dev); 442 subclass = pci_get_subclass(dev); 443 444 if ((class != PCIC_DISPLAY) || (subclass != PCIS_DISPLAY_VGA) || 445 (vendor != PCI_S3_VENDOR_ID)) 446 return ENXIO; 447 448 device_set_desc(dev, "S3 graphic card"); 449 450 bus_set_resource(dev, SYS_RES_IOPORT, 0, 451 S3_CONFIG_IO, S3_CONFIG_IO_SIZE); 452 bus_set_resource(dev, SYS_RES_IOPORT, 1, 453 S3_ENHANCED_IO, S3_ENHANCED_IO_SIZE); 454 455 return 0; 456 457 }; 458 459 static int 460 s3pci_attach(device_t dev) 461 { 462 struct s3pci_softc* sc = (struct s3pci_softc*)device_get_softc(dev); 463 video_adapter_t *adp; 464 465 #if 0 466 unsigned char tmp; 467 #endif 468 int rid, i; 469 470 if (s3pci_dev) { 471 printf("%s: driver already attached!\n", __FUNCTION__); 472 goto error; 473 } 474 475 /* Allocate resources 476 */ 477 rid = 0; 478 if (!(sc->port_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 479 0ul, ~0ul, 0, RF_ACTIVE | RF_SHAREABLE))) { 480 printf("%s: port resource allocation failed!\n", __FUNCTION__); 481 goto error; 482 } 483 sc->st = rman_get_bustag(sc->port_res); 484 sc->sh = rman_get_bushandle(sc->port_res); 485 486 rid = 1; 487 if (!(sc->enh_res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 488 0ul, ~0ul, 0, RF_ACTIVE | RF_SHAREABLE))) { 489 printf("%s: enhanced port resource allocation failed!\n", 490 __FUNCTION__); 491 goto error; 492 } 493 sc->enh_st = rman_get_bustag(sc->enh_res); 494 sc->enh_sh = rman_get_bushandle(sc->enh_res); 495 496 rid = PCI_BASE_MEMORY; 497 if (!(sc->mem_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 498 0, ~0, 1, RF_ACTIVE))) { 499 500 printf("%s: mem resource allocation failed!\n", __FUNCTION__); 501 goto error; 502 } 503 504 /* The memory base address will be our LFB base address 505 */ 506 /* sc->mem_base = (u_long)rman_get_virtual(sc->mem_res); */ 507 sc->mem_base = bus_get_resource_start(dev, SYS_RES_MEMORY, rid); 508 sc->mem_size = bus_get_resource_count(dev, SYS_RES_MEMORY, rid); 509 510 /* Attach the driver to the VGA/VESA framework 511 */ 512 for (i = 0; (adp = vid_get_adapter(i)) != NULL; ++i) { 513 if ((adp->va_type == KD_VGA)) 514 break; 515 } 516 517 /* If the VESA module hasn't been loaded, or VGA doesn't 518 * exist, abort 519 */ 520 if ((adp == NULL) || !(adp->va_flags & V_ADP_VESA)) { 521 printf("%s: VGA adapter not found or VESA module not loaded!\n", 522 __FUNCTION__); 523 goto error; 524 } 525 526 /* Replace the VESA video switch by owers 527 */ 528 prevvidsw = vidsw[adp->va_index]; 529 vidsw[adp->va_index] = &s3lfbvidsw; 530 531 /* Remember who we are on the bus */ 532 s3pci_dev = (void *)dev; /* XXX */ 533 534 return 0; 535 536 error: 537 if (sc->mem_res) 538 bus_release_resource(dev, SYS_RES_MEMORY, PCI_BASE_MEMORY, sc->mem_res); 539 540 if (sc->enh_res) 541 bus_release_resource(dev, SYS_RES_IOPORT, 1, sc->enh_res); 542 543 if (sc->port_res) 544 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port_res); 545 546 return ENXIO; 547 }; 548 549 static device_method_t s3pci_methods[] = { 550 551 DEVMETHOD(device_probe, s3pci_probe), 552 DEVMETHOD(device_attach, s3pci_attach), 553 {0,0} 554 }; 555 556 static driver_t s3pci_driver = { 557 "s3pci", 558 s3pci_methods, 559 sizeof(struct s3pci_softc), 560 }; 561 562 static devclass_t s3pci_devclass; 563 564 DRIVER_MODULE(s3pci, pci, s3pci_driver, s3pci_devclass, 0, 0); 565