vga.c revision 115253
1/*- 2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 3 * Copyright (c) 1992-1998 S�ren Schmidt 4 * 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 as 11 * the first lines of this file unmodified. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * $FreeBSD: head/sys/dev/fb/vga.c 115253 2003-05-23 05:10:49Z peter $ 30 */ 31 32#include "opt_vga.h" 33#include "opt_fb.h" 34#include "opt_syscons.h" /* should be removed in the future, XXX */ 35 36#include <sys/param.h> 37#include <sys/systm.h> 38#include <sys/kernel.h> 39#include <sys/conf.h> 40#include <sys/fcntl.h> 41#include <sys/malloc.h> 42#include <sys/fbio.h> 43 44#include <vm/vm.h> 45#include <vm/vm_param.h> 46#include <vm/pmap.h> 47 48#include <machine/md_var.h> 49#ifdef __i386__ 50#include <machine/pc/bios.h> 51#endif 52#include <machine/bus.h> 53 54#include <dev/fb/fbreg.h> 55#include <dev/fb/vgareg.h> 56 57#include <isa/isareg.h> 58 59#ifndef VGA_DEBUG 60#define VGA_DEBUG 0 61#endif 62 63/* XXX machine/pc/bios.h has got too much i386-specific stuff in it */ 64#ifndef BIOS_PADDRTOVADDR 65#if !defined(__amd64__) 66#define BIOS_PADDRTOVADDR(x) (x) 67#else 68#define BIOS_PADDRTOVADDR(x) (((x) - ISA_HOLE_START) + atdevbase) 69#endif 70#endif 71 72int 73vga_probe_unit(int unit, video_adapter_t *buf, int flags) 74{ 75 video_adapter_t *adp; 76 video_switch_t *sw; 77 int error; 78 79 sw = vid_get_switch(VGA_DRIVER_NAME); 80 if (sw == NULL) 81 return 0; 82 error = (*sw->probe)(unit, &adp, NULL, flags); 83 if (error) 84 return error; 85 bcopy(adp, buf, sizeof(*buf)); 86 return 0; 87} 88 89int 90vga_attach_unit(int unit, vga_softc_t *sc, int flags) 91{ 92 video_switch_t *sw; 93 int error; 94 95 sw = vid_get_switch(VGA_DRIVER_NAME); 96 if (sw == NULL) 97 return ENXIO; 98 99 error = (*sw->probe)(unit, &sc->adp, NULL, flags); 100 if (error) 101 return error; 102 return (*sw->init)(unit, sc->adp, flags); 103} 104 105/* cdev driver functions */ 106 107#ifdef FB_INSTALL_CDEV 108 109int 110vga_open(dev_t dev, vga_softc_t *sc, int flag, int mode, struct thread *td) 111{ 112 if (sc == NULL) 113 return ENXIO; 114 if (mode & (O_CREAT | O_APPEND | O_TRUNC)) 115 return ENODEV; 116 117 return genfbopen(&sc->gensc, sc->adp, flag, mode, td); 118} 119 120int 121vga_close(dev_t dev, vga_softc_t *sc, int flag, int mode, struct thread *td) 122{ 123 return genfbclose(&sc->gensc, sc->adp, flag, mode, td); 124} 125 126int 127vga_read(dev_t dev, vga_softc_t *sc, struct uio *uio, int flag) 128{ 129 return genfbread(&sc->gensc, sc->adp, uio, flag); 130} 131 132int 133vga_write(dev_t dev, vga_softc_t *sc, struct uio *uio, int flag) 134{ 135 return genfbread(&sc->gensc, sc->adp, uio, flag); 136} 137 138int 139vga_ioctl(dev_t dev, vga_softc_t *sc, u_long cmd, caddr_t arg, int flag, 140 struct thread *td) 141{ 142 return genfbioctl(&sc->gensc, sc->adp, cmd, arg, flag, td); 143} 144 145int 146vga_mmap(dev_t dev, vga_softc_t *sc, vm_offset_t offset, vm_offset_t *paddr, 147 int prot) 148{ 149 return genfbmmap(&sc->gensc, sc->adp, offset, paddr, prot); 150} 151 152#endif /* FB_INSTALL_CDEV */ 153 154/* LOW-LEVEL */ 155 156#include <machine/clock.h> 157#ifdef __i386__ 158#include <machine/pc/vesa.h> 159#endif 160 161#define probe_done(adp) ((adp)->va_flags & V_ADP_PROBED) 162#define init_done(adp) ((adp)->va_flags & V_ADP_INITIALIZED) 163#define config_done(adp) ((adp)->va_flags & V_ADP_REGISTERED) 164 165/* for compatibility with old kernel options */ 166#ifdef SC_ALT_SEQACCESS 167#undef SC_ALT_SEQACCESS 168#undef VGA_ALT_SEQACCESS 169#define VGA_ALT_SEQACCESS 1 170#endif 171 172#ifdef SLOW_VGA 173#undef SLOW_VGA 174#undef VGA_SLOW_IOACCESS 175#define VGA_SLOW_IOACCESS 1 176#endif 177 178/* architecture dependent option */ 179#ifndef __i386__ 180#define VGA_NO_BIOS 1 181#endif 182 183/* this should really be in `rtc.h' */ 184#define RTC_EQUIPMENT 0x14 185 186/* various sizes */ 187#define V_MODE_MAP_SIZE (M_VGA_CG320 + 1) 188#define V_MODE_PARAM_SIZE 64 189 190/* video adapter state buffer */ 191struct adp_state { 192 int sig; 193#define V_STATE_SIG 0x736f6962 194 u_char regs[V_MODE_PARAM_SIZE]; 195}; 196typedef struct adp_state adp_state_t; 197 198/* video adapter information */ 199#define DCC_MONO 0 200#define DCC_CGA40 1 201#define DCC_CGA80 2 202#define DCC_EGAMONO 3 203#define DCC_EGA40 4 204#define DCC_EGA80 5 205 206/* 207 * NOTE: `va_window' should have a virtual address, but is initialized 208 * with a physical address in the following table, as verify_adapter() 209 * will perform address conversion at run-time. 210 */ 211static video_adapter_t adapter_init_value[] = { 212 /* DCC_MONO */ 213 { 0, KD_MONO, "mda", 0, 0, 0, IO_MDA, IO_MDASIZE, MONO_CRTC, 214 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 215 0, 0, 0, 0, 7, 0, }, 216 /* DCC_CGA40 */ 217 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 218 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 219 0, 0, 0, 0, 3, 0, }, 220 /* DCC_CGA80 */ 221 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 222 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 223 0, 0, 0, 0, 3, 0, }, 224 /* DCC_EGAMONO */ 225 { 0, KD_EGA, "ega", 0, 0, 0, IO_MDA, 48, MONO_CRTC, 226 EGA_BUF_BASE, EGA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 227 0, 0, 0, 0, 7, 0, }, 228 /* DCC_EGA40 */ 229 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 230 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 231 0, 0, 0, 0, 3, 0, }, 232 /* DCC_EGA80 */ 233 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 234 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 235 0, 0, 0, 0, 3, 0, }, 236}; 237 238static video_adapter_t biosadapter[2]; 239static int biosadapters = 0; 240 241/* video driver declarations */ 242static int vga_configure(int flags); 243 int (*vga_sub_configure)(int flags); 244#if 0 245static int vga_nop(void); 246#endif 247static int vga_error(void); 248static vi_probe_t vga_probe; 249static vi_init_t vga_init; 250static vi_get_info_t vga_get_info; 251static vi_query_mode_t vga_query_mode; 252static vi_set_mode_t vga_set_mode; 253static vi_save_font_t vga_save_font; 254static vi_load_font_t vga_load_font; 255static vi_show_font_t vga_show_font; 256static vi_save_palette_t vga_save_palette; 257static vi_load_palette_t vga_load_palette; 258static vi_set_border_t vga_set_border; 259static vi_save_state_t vga_save_state; 260static vi_load_state_t vga_load_state; 261static vi_set_win_org_t vga_set_origin; 262static vi_read_hw_cursor_t vga_read_hw_cursor; 263static vi_set_hw_cursor_t vga_set_hw_cursor; 264static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape; 265static vi_blank_display_t vga_blank_display; 266static vi_mmap_t vga_mmap_buf; 267static vi_ioctl_t vga_dev_ioctl; 268#ifndef VGA_NO_MODE_CHANGE 269static vi_clear_t vga_clear; 270static vi_fill_rect_t vga_fill_rect; 271static vi_bitblt_t vga_bitblt; 272#else /* VGA_NO_MODE_CHANGE */ 273#define vga_clear (vi_clear_t *)vga_error 274#define vga_fill_rect (vi_fill_rect_t *)vga_error 275#define vga_bitblt (vi_bitblt_t *)vga_error 276#endif 277static vi_diag_t vga_diag; 278 279static video_switch_t vgavidsw = { 280 vga_probe, 281 vga_init, 282 vga_get_info, 283 vga_query_mode, 284 vga_set_mode, 285 vga_save_font, 286 vga_load_font, 287 vga_show_font, 288 vga_save_palette, 289 vga_load_palette, 290 vga_set_border, 291 vga_save_state, 292 vga_load_state, 293 vga_set_origin, 294 vga_read_hw_cursor, 295 vga_set_hw_cursor, 296 vga_set_hw_cursor_shape, 297 vga_blank_display, 298 vga_mmap_buf, 299 vga_dev_ioctl, 300 vga_clear, 301 vga_fill_rect, 302 vga_bitblt, 303 vga_error, 304 vga_error, 305 vga_diag, 306}; 307 308VIDEO_DRIVER(mda, vgavidsw, NULL); 309VIDEO_DRIVER(cga, vgavidsw, NULL); 310VIDEO_DRIVER(ega, vgavidsw, NULL); 311VIDEO_DRIVER(vga, vgavidsw, vga_configure); 312 313/* VGA BIOS standard video modes */ 314#define EOT (-1) 315#define NA (-2) 316 317static video_info_t bios_vmode[] = { 318 /* CGA */ 319 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1, 320 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 321 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1, 322 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 323 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1, 324 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 325 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1, 326 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 327 /* EGA */ 328 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1, 329 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 330 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1, 331 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 332 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1, 333 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 334 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1, 335 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 336 /* VGA */ 337 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1, 338 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 339 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1, 340 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 341 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1, 342 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 343 /* MDA */ 344 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1, 345 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 346 /* EGA */ 347 { M_ENH_B80x43, 0, 80, 43, 8, 8, 2, 1, 348 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 349 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1, 350 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 351 /* VGA */ 352 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1, 353 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 354 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1, 355 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 356 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1, 357 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 358 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1, 359 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 360 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1, 361 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 362 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1, 363 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 364 365#ifndef VGA_NO_MODE_CHANGE 366 367#ifdef VGA_WIDTH90 368 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1, 369 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 370 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1, 371 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 372 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1, 373 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 374 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1, 375 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 376 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1, 377 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 378 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1, 379 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 380 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1, 381 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 382 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1, 383 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 384 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1, 385 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 386 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1, 387 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 388#endif /* VGA_WIDTH90 */ 389 390 /* CGA */ 391 { M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 392 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 393 { M_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 394 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 395 { M_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1, 396 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 397 /* EGA */ 398 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4, 399 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 400 V_INFO_MM_PLANAR }, 401 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4, 402 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 403 V_INFO_MM_PLANAR }, 404 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 405 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 , 406 V_INFO_MM_PLANAR }, 407 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 408 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 409 V_INFO_MM_PLANAR }, 410 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2, 411 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 412 V_INFO_MM_PLANAR }, 413 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 414 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 415 V_INFO_MM_PLANAR }, 416 /* VGA */ 417 { M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 418 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 419 V_INFO_MM_PLANAR }, 420 { M_CG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 421 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 422 V_INFO_MM_PLANAR }, 423 { M_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1, 424 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 425 V_INFO_MM_PACKED, 1 }, 426 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 4, 427 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 428 V_INFO_MM_VGAX, 1 }, 429#endif /* VGA_NO_MODE_CHANGE */ 430 431 { EOT }, 432}; 433 434static int vga_init_done = FALSE; 435#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 436static u_char *video_mode_ptr = NULL; /* EGA/VGA */ 437static u_char *video_mode_ptr2 = NULL; /* CGA/MDA */ 438#endif 439static u_char *mode_map[V_MODE_MAP_SIZE]; 440static adp_state_t adpstate; 441static adp_state_t adpstate2; 442static int rows_offset = 1; 443 444/* local macros and functions */ 445#define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 446 447#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 448static void map_mode_table(u_char *map[], u_char *table, int max); 449#endif 450static void clear_mode_map(video_adapter_t *adp, u_char *map[], int max, 451 int color); 452#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 453static int map_mode_num(int mode); 454#endif 455static int map_gen_mode_num(int type, int color, int mode); 456static int map_bios_mode_num(int type, int color, int bios_mode); 457static u_char *get_mode_param(int mode); 458#ifndef VGA_NO_BIOS 459static void fill_adapter_param(int code, video_adapter_t *adp); 460#endif 461static int verify_adapter(video_adapter_t *adp); 462static void update_adapter_info(video_adapter_t *adp, video_info_t *info); 463#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 464#define COMP_IDENTICAL 0 465#define COMP_SIMILAR 1 466#define COMP_DIFFERENT 2 467static int comp_adpregs(u_char *buf1, u_char *buf2); 468#endif 469static int probe_adapters(void); 470static int set_line_length(video_adapter_t *adp, int pixel); 471static int set_display_start(video_adapter_t *adp, int x, int y); 472static void filll_io(int val, vm_offset_t d, size_t size); 473 474#ifndef VGA_NO_MODE_CHANGE 475#ifdef VGA_WIDTH90 476static void set_width90(adp_state_t *params); 477#endif 478#endif /* !VGA_NO_MODE_CHANGE */ 479 480#ifndef VGA_NO_FONT_LOADING 481#define PARAM_BUFSIZE 6 482static void set_font_mode(video_adapter_t *adp, u_char *buf); 483static void set_normal_mode(video_adapter_t *adp, u_char *buf); 484#endif 485 486#ifndef VGA_NO_MODE_CHANGE 487static void planar_fill(video_adapter_t *adp, int val); 488static void packed_fill(video_adapter_t *adp, int val); 489static void direct_fill(video_adapter_t *adp, int val); 490#ifdef notyet 491static void planar_fill_rect(video_adapter_t *adp, int val, int x, int y, 492 int cx, int cy); 493static void packed_fill_rect(video_adapter_t *adp, int val, int x, int y, 494 int cx, int cy); 495static void direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, 496 int cx, int cy); 497static void direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, 498 int cx, int cy); 499static void direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, 500 int cx, int cy); 501#endif /* notyet */ 502#endif /* !VGA_NO_MODE_CHANGE */ 503 504static void dump_buffer(u_char *buf, size_t len); 505 506#define ISMAPPED(pa, width) \ 507 (((pa) <= (u_long)0x1000 - (width)) \ 508 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width))) 509 510#define prologue(adp, flag, err) \ 511 if (!vga_init_done || !((adp)->va_flags & (flag))) \ 512 return (err) 513 514/* a backdoor for the console driver */ 515static int 516vga_configure(int flags) 517{ 518 int i; 519 520 probe_adapters(); 521 for (i = 0; i < biosadapters; ++i) { 522 if (!probe_done(&biosadapter[i])) 523 continue; 524 biosadapter[i].va_flags |= V_ADP_INITIALIZED; 525 if (!config_done(&biosadapter[i])) { 526 if (vid_register(&biosadapter[i]) < 0) 527 continue; 528 biosadapter[i].va_flags |= V_ADP_REGISTERED; 529 } 530 } 531 if (vga_sub_configure != NULL) 532 (*vga_sub_configure)(flags); 533 534 return biosadapters; 535} 536 537/* local subroutines */ 538 539#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 540/* construct the mode parameter map */ 541static void 542map_mode_table(u_char *map[], u_char *table, int max) 543{ 544 int i; 545 546 for(i = 0; i < max; ++i) 547 map[i] = table + i*V_MODE_PARAM_SIZE; 548 for(; i < V_MODE_MAP_SIZE; ++i) 549 map[i] = NULL; 550} 551#endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 552 553static void 554clear_mode_map(video_adapter_t *adp, u_char *map[], int max, int color) 555{ 556 video_info_t info; 557 int i; 558 559 /* 560 * NOTE: we don't touch `bios_vmode[]' because it is shared 561 * by all adapters. 562 */ 563 for(i = 0; i < max; ++i) { 564 if (vga_get_info(adp, i, &info)) 565 continue; 566 if ((info.vi_flags & V_INFO_COLOR) != color) 567 map[i] = NULL; 568 } 569} 570 571#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 572/* map the non-standard video mode to a known mode number */ 573static int 574map_mode_num(int mode) 575{ 576 static struct { 577 int from; 578 int to; 579 } mode_map[] = { 580 { M_ENH_B80x43, M_ENH_B80x25 }, 581 { M_ENH_C80x43, M_ENH_C80x25 }, 582 { M_VGA_M80x30, M_VGA_M80x25 }, 583 { M_VGA_C80x30, M_VGA_C80x25 }, 584 { M_VGA_M80x50, M_VGA_M80x25 }, 585 { M_VGA_C80x50, M_VGA_C80x25 }, 586 { M_VGA_M80x60, M_VGA_M80x25 }, 587 { M_VGA_C80x60, M_VGA_C80x25 }, 588#ifdef VGA_WIDTH90 589 { M_VGA_M90x25, M_VGA_M80x25 }, 590 { M_VGA_C90x25, M_VGA_C80x25 }, 591 { M_VGA_M90x30, M_VGA_M80x25 }, 592 { M_VGA_C90x30, M_VGA_C80x25 }, 593 { M_VGA_M90x43, M_ENH_B80x25 }, 594 { M_VGA_C90x43, M_ENH_C80x25 }, 595 { M_VGA_M90x50, M_VGA_M80x25 }, 596 { M_VGA_C90x50, M_VGA_C80x25 }, 597 { M_VGA_M90x60, M_VGA_M80x25 }, 598 { M_VGA_C90x60, M_VGA_C80x25 }, 599#endif 600 { M_VGA_MODEX, M_VGA_CG320 }, 601 }; 602 int i; 603 604 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 605 if (mode_map[i].from == mode) 606 return mode_map[i].to; 607 } 608 return mode; 609} 610#endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 611 612/* map a generic video mode to a known mode number */ 613static int 614map_gen_mode_num(int type, int color, int mode) 615{ 616 static struct { 617 int from; 618 int to_color; 619 int to_mono; 620 } mode_map[] = { 621 { M_TEXT_80x30, M_VGA_C80x30, M_VGA_M80x30, }, 622 { M_TEXT_80x43, M_ENH_C80x43, M_ENH_B80x43, }, 623 { M_TEXT_80x50, M_VGA_C80x50, M_VGA_M80x50, }, 624 { M_TEXT_80x60, M_VGA_C80x60, M_VGA_M80x60, }, 625 }; 626 int i; 627 628 if (mode == M_TEXT_80x25) { 629 switch (type) { 630 631 case KD_VGA: 632 if (color) 633 return M_VGA_C80x25; 634 else 635 return M_VGA_M80x25; 636 break; 637 638 case KD_EGA: 639 if (color) 640 return M_ENH_C80x25; 641 else 642 return M_EGAMONO80x25; 643 break; 644 645 case KD_CGA: 646 return M_C80x25; 647 648 case KD_MONO: 649 case KD_HERCULES: 650 return M_EGAMONO80x25; /* XXX: this name is confusing */ 651 652 default: 653 return -1; 654 } 655 } 656 657 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 658 if (mode_map[i].from == mode) 659 return ((color) ? mode_map[i].to_color : mode_map[i].to_mono); 660 } 661 return mode; 662} 663 664/* turn the BIOS video number into our video mode number */ 665static int 666map_bios_mode_num(int type, int color, int bios_mode) 667{ 668 static int cga_modes[7] = { 669 M_B40x25, M_C40x25, /* 0, 1 */ 670 M_B80x25, M_C80x25, /* 2, 3 */ 671 M_BG320, M_CG320, 672 M_BG640, 673 }; 674 static int ega_modes[17] = { 675 M_ENH_B40x25, M_ENH_C40x25, /* 0, 1 */ 676 M_ENH_B80x25, M_ENH_C80x25, /* 2, 3 */ 677 M_BG320, M_CG320, 678 M_BG640, 679 M_EGAMONO80x25, /* 7 */ 680 8, 9, 10, 11, 12, 681 M_CG320_D, 682 M_CG640_E, 683 M_ENHMONOAPA2, /* XXX: video momery > 64K */ 684 M_ENH_CG640, /* XXX: video momery > 64K */ 685 }; 686 static int vga_modes[20] = { 687 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */ 688 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */ 689 M_BG320, M_CG320, 690 M_BG640, 691 M_VGA_M80x25, /* 7 */ 692 8, 9, 10, 11, 12, 693 M_CG320_D, 694 M_CG640_E, 695 M_ENHMONOAPA2, 696 M_ENH_CG640, 697 M_BG640x480, M_CG640x480, 698 M_VGA_CG320, 699 }; 700 701 switch (type) { 702 703 case KD_VGA: 704 if (bios_mode < sizeof(vga_modes)/sizeof(vga_modes[0])) 705 return vga_modes[bios_mode]; 706 else if (color) 707 return M_VGA_C80x25; 708 else 709 return M_VGA_M80x25; 710 break; 711 712 case KD_EGA: 713 if (bios_mode < sizeof(ega_modes)/sizeof(ega_modes[0])) 714 return ega_modes[bios_mode]; 715 else if (color) 716 return M_ENH_C80x25; 717 else 718 return M_EGAMONO80x25; 719 break; 720 721 case KD_CGA: 722 if (bios_mode < sizeof(cga_modes)/sizeof(cga_modes[0])) 723 return cga_modes[bios_mode]; 724 else 725 return M_C80x25; 726 break; 727 728 case KD_MONO: 729 case KD_HERCULES: 730 return M_EGAMONO80x25; /* XXX: this name is confusing */ 731 732 default: 733 break; 734 } 735 return -1; 736} 737 738/* look up a parameter table entry */ 739static u_char 740*get_mode_param(int mode) 741{ 742#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 743 if (mode >= V_MODE_MAP_SIZE) 744 mode = map_mode_num(mode); 745#endif 746 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE)) 747 return mode_map[mode]; 748 else 749 return NULL; 750} 751 752#ifndef VGA_NO_BIOS 753static void 754fill_adapter_param(int code, video_adapter_t *adp) 755{ 756 static struct { 757 int primary; 758 int secondary; 759 } dcc[] = { 760 { DCC_MONO, DCC_EGA40 /* CGA monitor */ }, 761 { DCC_MONO, DCC_EGA80 /* CGA monitor */ }, 762 { DCC_MONO, DCC_EGA80 }, 763 { DCC_MONO, DCC_EGA80 }, 764 { DCC_CGA40, DCC_EGAMONO }, 765 { DCC_CGA80, DCC_EGAMONO }, 766 { DCC_EGA40 /* CGA monitor */, DCC_MONO}, 767 { DCC_EGA80 /* CGA monitor */, DCC_MONO}, 768 { DCC_EGA80, DCC_MONO }, 769 { DCC_EGA80, DCC_MONO }, 770 { DCC_EGAMONO, DCC_CGA40 }, 771 { DCC_EGAMONO, DCC_CGA80 }, 772 }; 773 774 if ((code < 0) || (code >= sizeof(dcc)/sizeof(dcc[0]))) { 775 adp[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 776 adp[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 777 } else { 778 adp[V_ADP_PRIMARY] = adapter_init_value[dcc[code].primary]; 779 adp[V_ADP_SECONDARY] = adapter_init_value[dcc[code].secondary]; 780 } 781} 782#endif /* VGA_NO_BIOS */ 783 784static int 785verify_adapter(video_adapter_t *adp) 786{ 787 vm_offset_t buf; 788 u_int16_t v; 789#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 790 u_int32_t p; 791#endif 792 793 buf = BIOS_PADDRTOVADDR(adp->va_window); 794 v = readw(buf); 795 writew(buf, 0xA55A); 796 if (readw(buf) != 0xA55A) 797 return ENXIO; 798 writew(buf, v); 799 800 switch (adp->va_type) { 801 802 case KD_EGA: 803 outb(adp->va_crtc_addr, 7); 804 if (inb(adp->va_crtc_addr) == 7) { 805 adp->va_type = KD_VGA; 806 adp->va_name = "vga"; 807 adp->va_flags |= V_ADP_STATESAVE | V_ADP_PALETTE; 808 } 809 adp->va_flags |= V_ADP_STATELOAD | V_ADP_BORDER; 810 /* the color adapter may be in the 40x25 mode... XXX */ 811 812#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 813 /* get the BIOS video mode pointer */ 814 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8); 815 p = BIOS_SADDRTOLADDR(p); 816 if (ISMAPPED(p, sizeof(u_int32_t))) { 817 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p); 818 p = BIOS_SADDRTOLADDR(p); 819 if (ISMAPPED(p, V_MODE_PARAM_SIZE)) 820 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p); 821 } 822#endif 823 break; 824 825 case KD_CGA: 826 adp->va_flags |= V_ADP_COLOR | V_ADP_BORDER; 827 /* may be in the 40x25 mode... XXX */ 828#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 829 /* get the BIOS video mode pointer */ 830 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 831 p = BIOS_SADDRTOLADDR(p); 832 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 833#endif 834 break; 835 836 case KD_MONO: 837#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 838 /* get the BIOS video mode pointer */ 839 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 840 p = BIOS_SADDRTOLADDR(p); 841 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 842#endif 843 break; 844 } 845 846 return 0; 847} 848 849static void 850update_adapter_info(video_adapter_t *adp, video_info_t *info) 851{ 852 adp->va_flags &= ~V_ADP_COLOR; 853 adp->va_flags |= 854 (info->vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; 855 adp->va_crtc_addr = 856 (adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; 857 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window); 858 adp->va_window_size = info->vi_window_size; 859 adp->va_window_gran = info->vi_window_gran; 860 adp->va_window_orig = 0; 861 /* XXX */ 862 adp->va_buffer = info->vi_buffer; 863 adp->va_buffer_size = info->vi_buffer_size; 864 if (info->vi_mem_model == V_INFO_MM_VGAX) { 865 adp->va_line_width = info->vi_width/2; 866 } else if (info->vi_flags & V_INFO_GRAPHICS) { 867 switch (info->vi_depth/info->vi_planes) { 868 case 1: 869 adp->va_line_width = info->vi_width/8; 870 break; 871 case 2: 872 adp->va_line_width = info->vi_width/4; 873 break; 874 case 4: 875 adp->va_line_width = info->vi_width/2; 876 break; 877 case 8: 878 default: /* shouldn't happen */ 879 adp->va_line_width = info->vi_width; 880 break; 881 } 882 } else { 883 adp->va_line_width = info->vi_width; 884 } 885 adp->va_disp_start.x = 0; 886 adp->va_disp_start.y = 0; 887 bcopy(info, &adp->va_info, sizeof(adp->va_info)); 888} 889 890#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 891/* compare two parameter table entries */ 892static int 893comp_adpregs(u_char *buf1, u_char *buf2) 894{ 895 static struct { 896 u_char mask; 897 } params[V_MODE_PARAM_SIZE] = { 898 {0xff}, {0x00}, {0xff}, /* COLS}, ROWS}, POINTS */ 899 {0x00}, {0x00}, /* page length */ 900 {0xfe}, {0xff}, {0xff}, {0xff}, /* sequencer registers */ 901 {0xf3}, /* misc register */ 902 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, /* CRTC */ 903 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, 904 {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, 905 {0x00}, {0xff}, {0x7f}, {0xff}, {0xff}, 906 {0x7f}, {0xff}, {0xff}, {0xef}, {0xff}, 907 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* attribute controller regs */ 908 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 909 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 910 {0xff}, {0xff}, {0xff}, {0xff}, {0xf0}, 911 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* GDC register */ 912 {0xff}, {0xff}, {0xff}, {0xff}, 913 }; 914 int identical = TRUE; 915 int i; 916 917 if ((buf1 == NULL) || (buf2 == NULL)) 918 return COMP_DIFFERENT; 919 920 for (i = 0; i < sizeof(params)/sizeof(params[0]); ++i) { 921 if (params[i].mask == 0) /* don't care */ 922 continue; 923 if ((buf1[i] & params[i].mask) != (buf2[i] & params[i].mask)) 924 return COMP_DIFFERENT; 925 if (buf1[i] != buf2[i]) 926 identical = FALSE; 927 } 928 return (identical) ? COMP_IDENTICAL : COMP_SIMILAR; 929} 930#endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 931 932/* probe video adapters and return the number of detected adapters */ 933static int 934probe_adapters(void) 935{ 936 video_adapter_t *adp; 937 video_info_t info; 938#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 939 u_char *mp; 940#endif 941 int i; 942 943 /* do this test only once */ 944 if (vga_init_done) 945 return biosadapters; 946 vga_init_done = TRUE; 947 948 /* 949 * Locate display adapters. 950 * The AT architecture supports upto two adapters. `syscons' allows 951 * the following combinations of adapters: 952 * 1) MDA + CGA 953 * 2) MDA + EGA/VGA color 954 * 3) CGA + EGA/VGA mono 955 * Note that `syscons' doesn't bother with MCGA as it is only 956 * avaiable for low end PS/2 models which has 80286 or earlier CPUs, 957 * thus, they are not running FreeBSD! 958 * When there are two adapaters in the system, one becomes `primary' 959 * and the other `secondary'. The EGA adapter has a set of DIP 960 * switches on board for this information and the EGA BIOS copies 961 * it in the BIOS data area BIOSDATA_VIDEOSWITCH (40:88). 962 * The VGA BIOS has more sophisticated mechanism and has this 963 * information in BIOSDATA_DCCINDEX (40:8a), but it also maintains 964 * compatibility with the EGA BIOS by updating BIOSDATA_VIDEOSWITCH. 965 */ 966 967 /* 968 * Check rtc and BIOS data area. 969 * XXX: we don't use BIOSDATA_EQUIPMENT, since it is not a dead 970 * copy of RTC_EQUIPMENT. Bits 4 and 5 of ETC_EQUIPMENT are 971 * zeros for EGA and VGA. However, the EGA/VGA BIOS sets 972 * these bits in BIOSDATA_EQUIPMENT according to the monitor 973 * type detected. 974 */ 975#ifndef VGA_NO_BIOS 976 if (*(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8)) { 977 /* EGA/VGA BIOS is present */ 978 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 979 biosadapter); 980 } else { 981 switch ((rtcin(RTC_EQUIPMENT) >> 4) & 3) { /* bit 4 and 5 */ 982 case 0: 983 /* EGA/VGA: shouldn't be happening */ 984 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 985 biosadapter); 986 break; 987 case 1: 988 /* CGA 40x25 */ 989 /* FIXME: switch to the 80x25 mode? XXX */ 990 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA40]; 991 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 992 break; 993 case 2: 994 /* CGA 80x25 */ 995 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA80]; 996 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 997 break; 998 case 3: 999 /* MDA */ 1000 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 1001 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 1002 break; 1003 } 1004 } 1005#else 1006 /* assume EGA/VGA? XXX */ 1007 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_EGA80]; 1008 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 1009#endif /* VGA_NO_BIOS */ 1010 1011 biosadapters = 0; 1012 if (verify_adapter(&biosadapter[V_ADP_SECONDARY]) == 0) { 1013 ++biosadapters; 1014 biosadapter[V_ADP_SECONDARY].va_flags |= V_ADP_PROBED; 1015 biosadapter[V_ADP_SECONDARY].va_mode = 1016 biosadapter[V_ADP_SECONDARY].va_initial_mode = 1017 map_bios_mode_num(biosadapter[V_ADP_SECONDARY].va_type, 1018 biosadapter[V_ADP_SECONDARY].va_flags 1019 & V_ADP_COLOR, 1020 biosadapter[V_ADP_SECONDARY].va_initial_bios_mode); 1021 } else { 1022 biosadapter[V_ADP_SECONDARY].va_type = -1; 1023 } 1024 if (verify_adapter(&biosadapter[V_ADP_PRIMARY]) == 0) { 1025 ++biosadapters; 1026 biosadapter[V_ADP_PRIMARY].va_flags |= V_ADP_PROBED; 1027#ifndef VGA_NO_BIOS 1028 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 1029 readb(BIOS_PADDRTOVADDR(0x449)); 1030#else 1031 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 3; /* XXX */ 1032#endif 1033 biosadapter[V_ADP_PRIMARY].va_mode = 1034 biosadapter[V_ADP_PRIMARY].va_initial_mode = 1035 map_bios_mode_num(biosadapter[V_ADP_PRIMARY].va_type, 1036 biosadapter[V_ADP_PRIMARY].va_flags & V_ADP_COLOR, 1037 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode); 1038 } else { 1039 biosadapter[V_ADP_PRIMARY] = biosadapter[V_ADP_SECONDARY]; 1040 biosadapter[V_ADP_SECONDARY].va_type = -1; 1041 } 1042 if (biosadapters == 0) 1043 return biosadapters; 1044 biosadapter[V_ADP_PRIMARY].va_unit = V_ADP_PRIMARY; 1045 biosadapter[V_ADP_SECONDARY].va_unit = V_ADP_SECONDARY; 1046 1047#if 0 /* we don't need these... */ 1048 fb_init_struct(&biosadapter[V_ADP_PRIMARY], ...); 1049 fb_init_struct(&biosadapter[V_ADP_SECONDARY], ...); 1050#endif 1051 1052#if notyet 1053 /* 1054 * We cannot have two video adapter of the same type; there must be 1055 * only one of color or mono adapter, or one each of them. 1056 */ 1057 if (biosadapters > 1) { 1058 if (!((biosadapter[0].va_flags ^ biosadapter[1].va_flags) 1059 & V_ADP_COLOR)) 1060 /* we have two mono or color adapters!! */ 1061 return (biosadapters = 0); 1062 } 1063#endif 1064 1065 /* 1066 * Ensure a zero start address. The registers are w/o 1067 * for old hardware so it's too hard to relocate the active screen 1068 * memory. 1069 * This must be done before vga_save_state() for VGA. 1070 */ 1071 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 12); 1072 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1073 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 13); 1074 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1075 1076 /* the video mode parameter table in EGA/VGA BIOS */ 1077 /* NOTE: there can be only one EGA/VGA, wheather color or mono, 1078 * recognized by the video BIOS. 1079 */ 1080 if ((biosadapter[V_ADP_PRIMARY].va_type == KD_EGA) || 1081 (biosadapter[V_ADP_PRIMARY].va_type == KD_VGA)) { 1082 adp = &biosadapter[V_ADP_PRIMARY]; 1083 } else if ((biosadapter[V_ADP_SECONDARY].va_type == KD_EGA) || 1084 (biosadapter[V_ADP_SECONDARY].va_type == KD_VGA)) { 1085 adp = &biosadapter[V_ADP_SECONDARY]; 1086 } else { 1087 adp = NULL; 1088 } 1089 bzero(mode_map, sizeof(mode_map)); 1090 if (adp != NULL) { 1091 if (adp->va_type == KD_VGA) { 1092 vga_save_state(adp, &adpstate, sizeof(adpstate)); 1093#if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1094 mode_map[adp->va_initial_mode] = adpstate.regs; 1095 rows_offset = 1; 1096#else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1097 if (video_mode_ptr == NULL) { 1098 mode_map[adp->va_initial_mode] = adpstate.regs; 1099 rows_offset = 1; 1100 } else { 1101 /* discard the table if we are not familiar with it... */ 1102 map_mode_table(mode_map, video_mode_ptr, M_VGA_CG320 + 1); 1103 mp = get_mode_param(adp->va_initial_mode); 1104 if (mp != NULL) 1105 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs)); 1106 switch (comp_adpregs(adpstate.regs, mp)) { 1107 case COMP_IDENTICAL: 1108 /* 1109 * OK, this parameter table looks reasonably familiar 1110 * to us... 1111 */ 1112 /* 1113 * This is a kludge for Toshiba DynaBook SS433 1114 * whose BIOS video mode table entry has the actual # 1115 * of rows at the offset 1; BIOSes from other 1116 * manufacturers store the # of rows - 1 there. XXX 1117 */ 1118 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1119 break; 1120 1121 case COMP_SIMILAR: 1122 /* 1123 * Not exactly the same, but similar enough to be 1124 * trusted. However, use the saved register values 1125 * for the initial mode and other modes which are 1126 * based on the initial mode. 1127 */ 1128 mode_map[adp->va_initial_mode] = adpstate.regs; 1129 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1130 adpstate.regs[1] -= rows_offset - 1; 1131 break; 1132 1133 case COMP_DIFFERENT: 1134 default: 1135 /* 1136 * Don't use the paramter table in BIOS. It doesn't 1137 * look familiar to us. Video mode switching is allowed 1138 * only if the new mode is the same as or based on 1139 * the initial mode. 1140 */ 1141 video_mode_ptr = NULL; 1142 bzero(mode_map, sizeof(mode_map)); 1143 mode_map[adp->va_initial_mode] = adpstate.regs; 1144 rows_offset = 1; 1145 break; 1146 } 1147 } 1148#endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1149 1150#ifndef VGA_NO_MODE_CHANGE 1151 adp->va_flags |= V_ADP_MODECHANGE; 1152#endif 1153#ifndef VGA_NO_FONT_LOADING 1154 adp->va_flags |= V_ADP_FONT; 1155#endif 1156 } else if (adp->va_type == KD_EGA) { 1157#if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1158 rows_offset = 1; 1159#else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1160 if (video_mode_ptr == NULL) { 1161 rows_offset = 1; 1162 } else { 1163 map_mode_table(mode_map, video_mode_ptr, M_ENH_C80x25 + 1); 1164 /* XXX how can one validate the EGA table... */ 1165 mp = get_mode_param(adp->va_initial_mode); 1166 if (mp != NULL) { 1167 adp->va_flags |= V_ADP_MODECHANGE; 1168#ifndef VGA_NO_FONT_LOADING 1169 adp->va_flags |= V_ADP_FONT; 1170#endif 1171 rows_offset = 1; 1172 } else { 1173 /* 1174 * This is serious. We will not be able to switch video 1175 * modes at all... 1176 */ 1177 video_mode_ptr = NULL; 1178 bzero(mode_map, sizeof(mode_map)); 1179 rows_offset = 1; 1180 } 1181 } 1182#endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1183 } 1184 } 1185 1186 /* remove conflicting modes if we have more than one adapter */ 1187 if (biosadapters > 0) { 1188 for (i = 0; i < biosadapters; ++i) { 1189 if (!(biosadapter[i].va_flags & V_ADP_MODECHANGE)) 1190 continue; 1191 clear_mode_map(&biosadapter[i], mode_map, M_VGA_CG320 + 1, 1192 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1193 V_INFO_COLOR : 0); 1194 if ((biosadapter[i].va_type == KD_VGA) 1195 || (biosadapter[i].va_type == KD_EGA)) { 1196 biosadapter[i].va_io_base = 1197 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1198 IO_VGA : IO_MDA; 1199 biosadapter[i].va_io_size = 32; 1200 } 1201 } 1202 } 1203 1204 /* buffer address */ 1205 vga_get_info(&biosadapter[V_ADP_PRIMARY], 1206 biosadapter[V_ADP_PRIMARY].va_initial_mode, &info); 1207 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1208 update_adapter_info(&biosadapter[V_ADP_PRIMARY], &info); 1209 1210 if (biosadapters > 1) { 1211 vga_get_info(&biosadapter[V_ADP_SECONDARY], 1212 biosadapter[V_ADP_SECONDARY].va_initial_mode, &info); 1213 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1214 update_adapter_info(&biosadapter[V_ADP_SECONDARY], &info); 1215 } 1216 1217 /* 1218 * XXX: we should verify the following values for the primary adapter... 1219 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463); 1220 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02) 1221 * ? 0 : V_ADP_COLOR; 1222 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a); 1223 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484); 1224 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485); 1225 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c); 1226 */ 1227 1228 return biosadapters; 1229} 1230 1231/* set the scan line length in pixel */ 1232static int 1233set_line_length(video_adapter_t *adp, int pixel) 1234{ 1235 u_char *mp; 1236 int ppw; /* pixels per word */ 1237 int bpl; /* bytes per line */ 1238 int count; 1239 1240 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1241 return ENODEV; 1242 mp = get_mode_param(adp->va_mode); 1243 if (mp == NULL) 1244 return EINVAL; 1245 1246 switch (adp->va_info.vi_mem_model) { 1247 case V_INFO_MM_PLANAR: 1248 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1249 count = (pixel + ppw - 1)/ppw/2; 1250 bpl = ((pixel + ppw - 1)/ppw/2)*4; 1251 break; 1252 case V_INFO_MM_PACKED: 1253 count = (pixel + 7)/8; 1254 bpl = ((pixel + 7)/8)*8; 1255 break; 1256 case V_INFO_MM_TEXT: 1257 count = (pixel + 7)/8; /* columns */ 1258 bpl = (pixel + 7)/8; /* columns */ 1259 break; 1260 default: 1261 return ENODEV; 1262 } 1263 1264 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */ 1265 count *= 2; /* byte mode */ 1266 outb(adp->va_crtc_addr, 0x13); 1267 outb(adp->va_crtc_addr + 1, count); 1268 adp->va_line_width = bpl; 1269 1270 return 0; 1271} 1272 1273static int 1274set_display_start(video_adapter_t *adp, int x, int y) 1275{ 1276 int off; /* byte offset (graphics mode)/word offset (text mode) */ 1277 int poff; /* pixel offset */ 1278 int roff; /* row offset */ 1279 int ppb; /* pixels per byte */ 1280 1281 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1282 x &= ~7; 1283 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) { 1284 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1285 off = y*adp->va_line_width + x/ppb; 1286 roff = 0; 1287 poff = x%ppb; 1288 } else { 1289 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1290 outb(TSIDX, 1); 1291 if (inb(TSREG) & 1) 1292 ppb = 9; 1293 else 1294 ppb = 8; 1295 } else { 1296 ppb = 8; 1297 } 1298 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb; 1299 roff = y%adp->va_info.vi_cheight; 1300 /* FIXME: is this correct? XXX */ 1301 if (ppb == 8) 1302 poff = x%ppb; 1303 else 1304 poff = (x + 8)%ppb; 1305 } 1306 1307 /* start address */ 1308 outb(adp->va_crtc_addr, 0xc); /* high */ 1309 outb(adp->va_crtc_addr + 1, off >> 8); 1310 outb(adp->va_crtc_addr, 0xd); /* low */ 1311 outb(adp->va_crtc_addr + 1, off & 0xff); 1312 1313 /* horizontal pel pan */ 1314 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1315 inb(adp->va_crtc_addr + 6); 1316 outb(ATC, 0x13 | 0x20); 1317 outb(ATC, poff); 1318 inb(adp->va_crtc_addr + 6); 1319 outb(ATC, 0x20); 1320 } 1321 1322 /* preset raw scan */ 1323 outb(adp->va_crtc_addr, 8); 1324 outb(adp->va_crtc_addr + 1, roff); 1325 1326 adp->va_disp_start.x = x; 1327 adp->va_disp_start.y = y; 1328 return 0; 1329} 1330 1331#if defined(__i386__) || defined(__amd64__) /* XXX */ 1332static void 1333fill(int val, void *d, size_t size) 1334{ 1335 u_char *p = d; 1336 1337 while (size-- > 0) 1338 *p++ = val; 1339} 1340#endif /* __i386__ */ 1341 1342static void 1343filll_io(int val, vm_offset_t d, size_t size) 1344{ 1345 while (size-- > 0) { 1346 writel(d, val); 1347 d += sizeof(u_int32_t); 1348 } 1349} 1350 1351/* entry points */ 1352 1353#if 0 1354static int 1355vga_nop(void) 1356{ 1357 return 0; 1358} 1359#endif 1360 1361static int 1362vga_error(void) 1363{ 1364 return ENODEV; 1365} 1366 1367static int 1368vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 1369{ 1370 probe_adapters(); 1371 if (unit >= biosadapters) 1372 return ENXIO; 1373 1374 *adpp = &biosadapter[unit]; 1375 1376 return 0; 1377} 1378 1379static int 1380vga_init(int unit, video_adapter_t *adp, int flags) 1381{ 1382 if ((unit >= biosadapters) || (adp == NULL) || !probe_done(adp)) 1383 return ENXIO; 1384 1385 if (!init_done(adp)) { 1386 /* nothing to do really... */ 1387 adp->va_flags |= V_ADP_INITIALIZED; 1388 } 1389 1390 if (!config_done(adp)) { 1391 if (vid_register(adp) < 0) 1392 return ENXIO; 1393 adp->va_flags |= V_ADP_REGISTERED; 1394 } 1395 if (vga_sub_configure != NULL) 1396 (*vga_sub_configure)(0); 1397 1398 return 0; 1399} 1400 1401/* 1402 * get_info(): 1403 * Return the video_info structure of the requested video mode. 1404 * 1405 * all adapters 1406 */ 1407static int 1408vga_get_info(video_adapter_t *adp, int mode, video_info_t *info) 1409{ 1410 int i; 1411 1412 if (!vga_init_done) 1413 return ENXIO; 1414 1415 mode = map_gen_mode_num(adp->va_type, adp->va_flags & V_ADP_COLOR, mode); 1416#ifndef VGA_NO_MODE_CHANGE 1417 if (adp->va_flags & V_ADP_MODECHANGE) { 1418 /* 1419 * If the parameter table entry for this mode is not found, 1420 * the mode is not supported... 1421 */ 1422 if (get_mode_param(mode) == NULL) 1423 return EINVAL; 1424 } else 1425#endif /* VGA_NO_MODE_CHANGE */ 1426 { 1427 /* 1428 * Even if we don't support video mode switching on this adapter, 1429 * the information on the initial (thus current) video mode 1430 * should be made available. 1431 */ 1432 if (mode != adp->va_initial_mode) 1433 return EINVAL; 1434 } 1435 1436 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1437 if (bios_vmode[i].vi_mode == NA) 1438 continue; 1439 if (mode == bios_vmode[i].vi_mode) { 1440 *info = bios_vmode[i]; 1441 /* XXX */ 1442 info->vi_buffer_size = info->vi_window_size*info->vi_planes; 1443 return 0; 1444 } 1445 } 1446 return EINVAL; 1447} 1448 1449/* 1450 * query_mode(): 1451 * Find a video mode matching the requested parameters. 1452 * Fields filled with 0 are considered "don't care" fields and 1453 * match any modes. 1454 * 1455 * all adapters 1456 */ 1457static int 1458vga_query_mode(video_adapter_t *adp, video_info_t *info) 1459{ 1460 int i; 1461 1462 if (!vga_init_done) 1463 return ENXIO; 1464 1465 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1466 if (bios_vmode[i].vi_mode == NA) 1467 continue; 1468 1469 if ((info->vi_width != 0) 1470 && (info->vi_width != bios_vmode[i].vi_width)) 1471 continue; 1472 if ((info->vi_height != 0) 1473 && (info->vi_height != bios_vmode[i].vi_height)) 1474 continue; 1475 if ((info->vi_cwidth != 0) 1476 && (info->vi_cwidth != bios_vmode[i].vi_cwidth)) 1477 continue; 1478 if ((info->vi_cheight != 0) 1479 && (info->vi_cheight != bios_vmode[i].vi_cheight)) 1480 continue; 1481 if ((info->vi_depth != 0) 1482 && (info->vi_depth != bios_vmode[i].vi_depth)) 1483 continue; 1484 if ((info->vi_planes != 0) 1485 && (info->vi_planes != bios_vmode[i].vi_planes)) 1486 continue; 1487 /* XXX: should check pixel format, memory model */ 1488 if ((info->vi_flags != 0) 1489 && (info->vi_flags != bios_vmode[i].vi_flags)) 1490 continue; 1491 1492 /* verify if this mode is supported on this adapter */ 1493 if (vga_get_info(adp, bios_vmode[i].vi_mode, info)) 1494 continue; 1495 return 0; 1496 } 1497 return ENODEV; 1498} 1499 1500/* 1501 * set_mode(): 1502 * Change the video mode. 1503 * 1504 * EGA/VGA 1505 */ 1506 1507#ifndef VGA_NO_MODE_CHANGE 1508#ifdef VGA_WIDTH90 1509static void 1510set_width90(adp_state_t *params) 1511{ 1512 /* 1513 * Based on code submitted by Kelly Yancey (kbyanc@freedomnet.com) 1514 * and alexv@sui.gda.itesm.mx. 1515 */ 1516 params->regs[5] |= 1; /* toggle 8 pixel wide fonts */ 1517 params->regs[10+0x0] = 0x6b; 1518 params->regs[10+0x1] = 0x59; 1519 params->regs[10+0x2] = 0x5a; 1520 params->regs[10+0x3] = 0x8e; 1521 params->regs[10+0x4] = 0x5e; 1522 params->regs[10+0x5] = 0x8a; 1523 params->regs[10+0x13] = 45; 1524 params->regs[35+0x13] = 0; 1525} 1526#endif /* VGA_WIDTH90 */ 1527#endif /* !VGA_NO_MODE_CHANGE */ 1528 1529static int 1530vga_set_mode(video_adapter_t *adp, int mode) 1531{ 1532#ifndef VGA_NO_MODE_CHANGE 1533 video_info_t info; 1534 adp_state_t params; 1535 1536 prologue(adp, V_ADP_MODECHANGE, ENODEV); 1537 1538 mode = map_gen_mode_num(adp->va_type, 1539 adp->va_flags & V_ADP_COLOR, mode); 1540 if (vga_get_info(adp, mode, &info)) 1541 return EINVAL; 1542 1543#if VGA_DEBUG > 1 1544 printf("vga_set_mode(): setting mode %d\n", mode); 1545#endif 1546 1547 params.sig = V_STATE_SIG; 1548 bcopy(get_mode_param(mode), params.regs, sizeof(params.regs)); 1549 1550 switch (mode) { 1551#ifdef VGA_WIDTH90 1552 case M_VGA_C90x60: case M_VGA_M90x60: 1553 set_width90(¶ms); 1554 /* FALLTHROUGH */ 1555#endif 1556 case M_VGA_C80x60: case M_VGA_M80x60: 1557 params.regs[2] = 0x08; 1558 params.regs[19] = 0x47; 1559 goto special_480l; 1560 1561#ifdef VGA_WIDTH90 1562 case M_VGA_C90x30: case M_VGA_M90x30: 1563 set_width90(¶ms); 1564 /* FALLTHROUGH */ 1565#endif 1566 case M_VGA_C80x30: case M_VGA_M80x30: 1567 params.regs[19] = 0x4f; 1568special_480l: 1569 params.regs[9] |= 0xc0; 1570 params.regs[16] = 0x08; 1571 params.regs[17] = 0x3e; 1572 params.regs[26] = 0xea; 1573 params.regs[28] = 0xdf; 1574 params.regs[31] = 0xe7; 1575 params.regs[32] = 0x04; 1576 goto setup_mode; 1577 1578#ifdef VGA_WIDTH90 1579 case M_VGA_C90x43: case M_VGA_M90x43: 1580 set_width90(¶ms); 1581 /* FALLTHROUGH */ 1582#endif 1583 case M_ENH_C80x43: case M_ENH_B80x43: 1584 params.regs[28] = 87; 1585 goto special_80x50; 1586 1587#ifdef VGA_WIDTH90 1588 case M_VGA_C90x50: case M_VGA_M90x50: 1589 set_width90(¶ms); 1590 /* FALLTHROUGH */ 1591#endif 1592 case M_VGA_C80x50: case M_VGA_M80x50: 1593special_80x50: 1594 params.regs[2] = 8; 1595 params.regs[19] = 7; 1596 goto setup_mode; 1597 1598#ifdef VGA_WIDTH90 1599 case M_VGA_C90x25: case M_VGA_M90x25: 1600 set_width90(¶ms); 1601 /* FALLTHROUGH */ 1602#endif 1603 case M_VGA_C40x25: case M_VGA_C80x25: 1604 case M_VGA_M80x25: 1605 case M_B40x25: case M_C40x25: 1606 case M_B80x25: case M_C80x25: 1607 case M_ENH_B40x25: case M_ENH_C40x25: 1608 case M_ENH_B80x25: case M_ENH_C80x25: 1609 case M_EGAMONO80x25: 1610 1611setup_mode: 1612 vga_load_state(adp, ¶ms); 1613 break; 1614 1615 case M_VGA_MODEX: 1616 /* "unchain" the VGA mode */ 1617 params.regs[5-1+0x04] &= 0xf7; 1618 params.regs[5-1+0x04] |= 0x04; 1619 /* turn off doubleword mode */ 1620 params.regs[10+0x14] &= 0xbf; 1621 /* turn off word addressing */ 1622 params.regs[10+0x17] |= 0x40; 1623 /* set logical screen width */ 1624 params.regs[10+0x13] = 80; 1625 /* set 240 lines */ 1626 params.regs[10+0x11] = 0x2c; 1627 params.regs[10+0x06] = 0x0d; 1628 params.regs[10+0x07] = 0x3e; 1629 params.regs[10+0x10] = 0xea; 1630 params.regs[10+0x11] = 0xac; 1631 params.regs[10+0x12] = 0xdf; 1632 params.regs[10+0x15] = 0xe7; 1633 params.regs[10+0x16] = 0x06; 1634 /* set vertical sync polarity to reflect aspect ratio */ 1635 params.regs[9] = 0xe3; 1636 goto setup_grmode; 1637 1638 case M_BG320: case M_CG320: case M_BG640: 1639 case M_CG320_D: case M_CG640_E: 1640 case M_CG640x350: case M_ENH_CG640: 1641 case M_BG640x480: case M_CG640x480: case M_VGA_CG320: 1642 1643setup_grmode: 1644 vga_load_state(adp, ¶ms); 1645 break; 1646 1647 default: 1648 return EINVAL; 1649 } 1650 1651 adp->va_mode = mode; 1652 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1653 update_adapter_info(adp, &info); 1654 1655 /* move hardware cursor out of the way */ 1656 (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1); 1657 1658 return 0; 1659#else /* VGA_NO_MODE_CHANGE */ 1660 return ENODEV; 1661#endif /* VGA_NO_MODE_CHANGE */ 1662} 1663 1664#ifndef VGA_NO_FONT_LOADING 1665 1666static void 1667set_font_mode(video_adapter_t *adp, u_char *buf) 1668{ 1669 u_char *mp; 1670 int s; 1671 1672 s = splhigh(); 1673 1674 /* save register values */ 1675 if (adp->va_type == KD_VGA) { 1676 outb(TSIDX, 0x02); buf[0] = inb(TSREG); 1677 outb(TSIDX, 0x04); buf[1] = inb(TSREG); 1678 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG); 1679 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG); 1680 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG); 1681 inb(adp->va_crtc_addr + 6); 1682 outb(ATC, 0x10); buf[5] = inb(ATC + 1); 1683 } else /* if (adp->va_type == KD_EGA) */ { 1684 /* 1685 * EGA cannot be read; copy parameters from the mode parameter 1686 * table. 1687 */ 1688 mp = get_mode_param(adp->va_mode); 1689 buf[0] = mp[5 + 0x02 - 1]; 1690 buf[1] = mp[5 + 0x04 - 1]; 1691 buf[2] = mp[55 + 0x04]; 1692 buf[3] = mp[55 + 0x05]; 1693 buf[4] = mp[55 + 0x06]; 1694 buf[5] = mp[35 + 0x10]; 1695 } 1696 1697 /* setup vga for loading fonts */ 1698 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1699 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01); 1700 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1701 outb(ATC, 0x20); /* enable palette */ 1702 1703#if VGA_SLOW_IOACCESS 1704#ifdef VGA_ALT_SEQACCESS 1705 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1706#endif 1707 outb(TSIDX, 0x02); outb(TSREG, 0x04); 1708 outb(TSIDX, 0x04); outb(TSREG, 0x07); 1709#ifdef VGA_ALT_SEQACCESS 1710 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1711#endif 1712 outb(GDCIDX, 0x04); outb(GDCREG, 0x02); 1713 outb(GDCIDX, 0x05); outb(GDCREG, 0x00); 1714 outb(GDCIDX, 0x06); outb(GDCREG, 0x04); 1715#else /* VGA_SLOW_IOACCESS */ 1716#ifdef VGA_ALT_SEQACCESS 1717 outw(TSIDX, 0x0100); 1718#endif 1719 outw(TSIDX, 0x0402); 1720 outw(TSIDX, 0x0704); 1721#ifdef VGA_ALT_SEQACCESS 1722 outw(TSIDX, 0x0300); 1723#endif 1724 outw(GDCIDX, 0x0204); 1725 outw(GDCIDX, 0x0005); 1726 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */ 1727#endif /* VGA_SLOW_IOACCESS */ 1728 1729 splx(s); 1730} 1731 1732static void 1733set_normal_mode(video_adapter_t *adp, u_char *buf) 1734{ 1735 int s; 1736 1737 s = splhigh(); 1738 1739 /* setup vga for normal operation mode again */ 1740 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1741 outb(ATC, 0x10); outb(ATC, buf[5]); 1742 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1743 outb(ATC, 0x20); /* enable palette */ 1744 1745#if VGA_SLOW_IOACCESS 1746#ifdef VGA_ALT_SEQACCESS 1747 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1748#endif 1749 outb(TSIDX, 0x02); outb(TSREG, buf[0]); 1750 outb(TSIDX, 0x04); outb(TSREG, buf[1]); 1751#ifdef VGA_ALT_SEQACCESS 1752 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1753#endif 1754 outb(GDCIDX, 0x04); outb(GDCREG, buf[2]); 1755 outb(GDCIDX, 0x05); outb(GDCREG, buf[3]); 1756 if (adp->va_crtc_addr == MONO_CRTC) { 1757 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x08); 1758 } else { 1759 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x0c); 1760 } 1761#else /* VGA_SLOW_IOACCESS */ 1762#ifdef VGA_ALT_SEQACCESS 1763 outw(TSIDX, 0x0100); 1764#endif 1765 outw(TSIDX, 0x0002 | (buf[0] << 8)); 1766 outw(TSIDX, 0x0004 | (buf[1] << 8)); 1767#ifdef VGA_ALT_SEQACCESS 1768 outw(TSIDX, 0x0300); 1769#endif 1770 outw(GDCIDX, 0x0004 | (buf[2] << 8)); 1771 outw(GDCIDX, 0x0005 | (buf[3] << 8)); 1772 if (adp->va_crtc_addr == MONO_CRTC) 1773 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x08)<<8)); 1774 else 1775 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8)); 1776#endif /* VGA_SLOW_IOACCESS */ 1777 1778 splx(s); 1779} 1780 1781#endif /* VGA_NO_FONT_LOADING */ 1782 1783/* 1784 * save_font(): 1785 * Read the font data in the requested font page from the video adapter. 1786 * 1787 * EGA/VGA 1788 */ 1789static int 1790vga_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1791 int ch, int count) 1792{ 1793#ifndef VGA_NO_FONT_LOADING 1794 u_char buf[PARAM_BUFSIZE]; 1795 vm_offset_t segment; 1796 int c; 1797#ifdef VGA_ALT_SEQACCESS 1798 int s; 1799 u_char val = 0; 1800#endif 1801 1802 prologue(adp, V_ADP_FONT, ENODEV); 1803 1804 if (fontsize < 14) { 1805 /* FONT_8 */ 1806 fontsize = 8; 1807 } else if (fontsize >= 32) { 1808 fontsize = 32; 1809 } else if (fontsize >= 16) { 1810 /* FONT_16 */ 1811 fontsize = 16; 1812 } else { 1813 /* FONT_14 */ 1814 fontsize = 14; 1815 } 1816 1817 if (page < 0 || page >= 8) 1818 return EINVAL; 1819 segment = FONT_BUF + 0x4000*page; 1820 if (page > 3) 1821 segment -= 0xe000; 1822 1823#ifdef VGA_ALT_SEQACCESS 1824 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1825 s = splhigh(); 1826 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1827 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1828 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1829 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1830 splx(s); 1831 } 1832#endif 1833 1834 set_font_mode(adp, buf); 1835 if (fontsize == 32) { 1836 bcopy_fromio((uintptr_t)segment + ch*32, data, fontsize*count); 1837 } else { 1838 for (c = ch; count > 0; ++c, --count) { 1839 bcopy_fromio((uintptr_t)segment + c*32, data, fontsize); 1840 data += fontsize; 1841 } 1842 } 1843 set_normal_mode(adp, buf); 1844 1845#ifdef VGA_ALT_SEQACCESS 1846 if (adp->va_type == KD_VGA) { 1847 s = splhigh(); 1848 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1849 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1850 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1851 splx(s); 1852 } 1853#endif 1854 1855 return 0; 1856#else /* VGA_NO_FONT_LOADING */ 1857 return ENODEV; 1858#endif /* VGA_NO_FONT_LOADING */ 1859} 1860 1861/* 1862 * load_font(): 1863 * Set the font data in the requested font page. 1864 * NOTE: it appears that some recent video adapters do not support 1865 * the font page other than 0... XXX 1866 * 1867 * EGA/VGA 1868 */ 1869static int 1870vga_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1871 int ch, int count) 1872{ 1873#ifndef VGA_NO_FONT_LOADING 1874 u_char buf[PARAM_BUFSIZE]; 1875 vm_offset_t segment; 1876 int c; 1877#ifdef VGA_ALT_SEQACCESS 1878 int s; 1879 u_char val = 0; 1880#endif 1881 1882 prologue(adp, V_ADP_FONT, ENODEV); 1883 1884 if (fontsize < 14) { 1885 /* FONT_8 */ 1886 fontsize = 8; 1887 } else if (fontsize >= 32) { 1888 fontsize = 32; 1889 } else if (fontsize >= 16) { 1890 /* FONT_16 */ 1891 fontsize = 16; 1892 } else { 1893 /* FONT_14 */ 1894 fontsize = 14; 1895 } 1896 1897 if (page < 0 || page >= 8) 1898 return EINVAL; 1899 segment = FONT_BUF + 0x4000*page; 1900 if (page > 3) 1901 segment -= 0xe000; 1902 1903#ifdef VGA_ALT_SEQACCESS 1904 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1905 s = splhigh(); 1906 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1907 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1908 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1909 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1910 splx(s); 1911 } 1912#endif 1913 1914 set_font_mode(adp, buf); 1915 if (fontsize == 32) { 1916 bcopy_toio(data, (uintptr_t)segment + ch*32, fontsize*count); 1917 } else { 1918 for (c = ch; count > 0; ++c, --count) { 1919 bcopy_toio(data, (uintptr_t)segment + c*32, fontsize); 1920 data += fontsize; 1921 } 1922 } 1923 set_normal_mode(adp, buf); 1924 1925#ifdef VGA_ALT_SEQACCESS 1926 if (adp->va_type == KD_VGA) { 1927 s = splhigh(); 1928 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1929 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1930 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1931 splx(s); 1932 } 1933#endif 1934 1935 return 0; 1936#else /* VGA_NO_FONT_LOADING */ 1937 return ENODEV; 1938#endif /* VGA_NO_FONT_LOADING */ 1939} 1940 1941/* 1942 * show_font(): 1943 * Activate the requested font page. 1944 * NOTE: it appears that some recent video adapters do not support 1945 * the font page other than 0... XXX 1946 * 1947 * EGA/VGA 1948 */ 1949static int 1950vga_show_font(video_adapter_t *adp, int page) 1951{ 1952#ifndef VGA_NO_FONT_LOADING 1953 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f }; 1954 int s; 1955 1956 prologue(adp, V_ADP_FONT, ENODEV); 1957 if (page < 0 || page >= 8) 1958 return EINVAL; 1959 1960 s = splhigh(); 1961 outb(TSIDX, 0x03); outb(TSREG, cg[page]); 1962 splx(s); 1963 1964 return 0; 1965#else /* VGA_NO_FONT_LOADING */ 1966 return ENODEV; 1967#endif /* VGA_NO_FONT_LOADING */ 1968} 1969 1970/* 1971 * save_palette(): 1972 * Read DAC values. The values have expressed in 8 bits. 1973 * 1974 * VGA 1975 */ 1976static int 1977vga_save_palette(video_adapter_t *adp, u_char *palette) 1978{ 1979 int i; 1980 1981 prologue(adp, V_ADP_PALETTE, ENODEV); 1982 1983 /* 1984 * We store 8 bit values in the palette buffer, while the standard 1985 * VGA has 6 bit DAC . 1986 */ 1987 outb(PALRADR, 0x00); 1988 for (i = 0; i < 256*3; ++i) 1989 palette[i] = inb(PALDATA) << 2; 1990 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1991 return 0; 1992} 1993 1994static int 1995vga_save_palette2(video_adapter_t *adp, int base, int count, 1996 u_char *r, u_char *g, u_char *b) 1997{ 1998 int i; 1999 2000 prologue(adp, V_ADP_PALETTE, ENODEV); 2001 2002 outb(PALRADR, base); 2003 for (i = 0; i < count; ++i) { 2004 r[i] = inb(PALDATA) << 2; 2005 g[i] = inb(PALDATA) << 2; 2006 b[i] = inb(PALDATA) << 2; 2007 } 2008 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2009 return 0; 2010} 2011 2012/* 2013 * load_palette(): 2014 * Set DAC values. 2015 * 2016 * VGA 2017 */ 2018static int 2019vga_load_palette(video_adapter_t *adp, u_char *palette) 2020{ 2021 int i; 2022 2023 prologue(adp, V_ADP_PALETTE, ENODEV); 2024 2025 outb(PIXMASK, 0xff); /* no pixelmask */ 2026 outb(PALWADR, 0x00); 2027 for (i = 0; i < 256*3; ++i) 2028 outb(PALDATA, palette[i] >> 2); 2029 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2030 outb(ATC, 0x20); /* enable palette */ 2031 return 0; 2032} 2033 2034static int 2035vga_load_palette2(video_adapter_t *adp, int base, int count, 2036 u_char *r, u_char *g, u_char *b) 2037{ 2038 int i; 2039 2040 prologue(adp, V_ADP_PALETTE, ENODEV); 2041 2042 outb(PIXMASK, 0xff); /* no pixelmask */ 2043 outb(PALWADR, base); 2044 for (i = 0; i < count; ++i) { 2045 outb(PALDATA, r[i] >> 2); 2046 outb(PALDATA, g[i] >> 2); 2047 outb(PALDATA, b[i] >> 2); 2048 } 2049 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2050 outb(ATC, 0x20); /* enable palette */ 2051 return 0; 2052} 2053 2054/* 2055 * set_border(): 2056 * Change the border color. 2057 * 2058 * CGA/EGA/VGA 2059 */ 2060static int 2061vga_set_border(video_adapter_t *adp, int color) 2062{ 2063 prologue(adp, V_ADP_BORDER, ENODEV); 2064 2065 switch (adp->va_type) { 2066 case KD_EGA: 2067 case KD_VGA: 2068 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 2069 outb(ATC, 0x31); outb(ATC, color & 0xff); 2070 break; 2071 case KD_CGA: 2072 outb(adp->va_crtc_addr + 5, color & 0x0f); /* color select register */ 2073 break; 2074 case KD_MONO: 2075 case KD_HERCULES: 2076 default: 2077 break; 2078 } 2079 return 0; 2080} 2081 2082/* 2083 * save_state(): 2084 * Read video register values. 2085 * NOTE: this function only reads the standard EGA/VGA registers. 2086 * any extra/extended registers of SVGA adapters are not saved. 2087 * 2088 * VGA 2089 */ 2090static int 2091vga_save_state(video_adapter_t *adp, void *p, size_t size) 2092{ 2093 video_info_t info; 2094 u_char *buf; 2095 int crtc_addr; 2096 int i, j; 2097 int s; 2098 2099 if (size == 0) { 2100 /* return the required buffer size */ 2101 prologue(adp, V_ADP_STATESAVE, 0); 2102 return sizeof(adp_state_t); 2103 } else { 2104 prologue(adp, V_ADP_STATESAVE, ENODEV); 2105 if (size < sizeof(adp_state_t)) 2106 return EINVAL; 2107 } 2108 2109 ((adp_state_t *)p)->sig = V_STATE_SIG; 2110 buf = ((adp_state_t *)p)->regs; 2111 bzero(buf, V_MODE_PARAM_SIZE); 2112 crtc_addr = adp->va_crtc_addr; 2113 2114 s = splhigh(); 2115 2116 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2117 for (i = 0, j = 5; i < 4; i++) { 2118 outb(TSIDX, i + 1); 2119 buf[j++] = inb(TSREG); 2120 } 2121 buf[9] = inb(MISC + 10); /* dot-clock */ 2122 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2123 2124 for (i = 0, j = 10; i < 25; i++) { /* crtc */ 2125 outb(crtc_addr, i); 2126 buf[j++] = inb(crtc_addr + 1); 2127 } 2128 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */ 2129 inb(crtc_addr + 6); /* reset flip-flop */ 2130 outb(ATC, i); 2131 buf[j++] = inb(ATC + 1); 2132 } 2133 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */ 2134 outb(GDCIDX, i); 2135 buf[j++] = inb(GDCREG); 2136 } 2137 inb(crtc_addr + 6); /* reset flip-flop */ 2138 outb(ATC, 0x20); /* enable palette */ 2139 2140 splx(s); 2141 2142#if 1 2143 if (vga_get_info(adp, adp->va_mode, &info) == 0) { 2144 if (info.vi_flags & V_INFO_GRAPHICS) { 2145 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */ 2146 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */ 2147 } else { 2148 buf[0] = info.vi_width; /* COLS */ 2149 buf[1] = info.vi_height - 1; /* ROWS */ 2150 } 2151 buf[2] = info.vi_cheight; /* POINTS */ 2152 } else { 2153 /* XXX: shouldn't be happening... */ 2154 printf("vga%d: %s: failed to obtain mode info. (vga_save_state())\n", 2155 adp->va_unit, adp->va_name); 2156 } 2157#else 2158 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */ 2159 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */ 2160 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */ 2161 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c)); 2162 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d)); 2163#endif 2164 2165 return 0; 2166} 2167 2168/* 2169 * load_state(): 2170 * Set video registers at once. 2171 * NOTE: this function only updates the standard EGA/VGA registers. 2172 * any extra/extended registers of SVGA adapters are not changed. 2173 * 2174 * EGA/VGA 2175 */ 2176static int 2177vga_load_state(video_adapter_t *adp, void *p) 2178{ 2179 u_char *buf; 2180 int crtc_addr; 2181 int s; 2182 int i; 2183 2184 prologue(adp, V_ADP_STATELOAD, ENODEV); 2185 if (((adp_state_t *)p)->sig != V_STATE_SIG) 2186 return EINVAL; 2187 2188 buf = ((adp_state_t *)p)->regs; 2189 crtc_addr = adp->va_crtc_addr; 2190 2191#if VGA_DEBUG > 1 2192 dump_buffer(buf, V_MODE_PARAM_SIZE); 2193#endif 2194 2195 s = splhigh(); 2196 2197 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2198 for (i = 0; i < 4; ++i) { /* program sequencer */ 2199 outb(TSIDX, i + 1); 2200 outb(TSREG, buf[i + 5]); 2201 } 2202 outb(MISC, buf[9]); /* set dot-clock */ 2203 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2204 outb(crtc_addr, 0x11); 2205 outb(crtc_addr + 1, inb(crtc_addr + 1) & 0x7F); 2206 for (i = 0; i < 25; ++i) { /* program crtc */ 2207 outb(crtc_addr, i); 2208 outb(crtc_addr + 1, buf[i + 10]); 2209 } 2210 inb(crtc_addr+6); /* reset flip-flop */ 2211 for (i = 0; i < 20; ++i) { /* program attribute ctrl */ 2212 outb(ATC, i); 2213 outb(ATC, buf[i + 35]); 2214 } 2215 for (i = 0; i < 9; ++i) { /* program graph data ctrl */ 2216 outb(GDCIDX, i); 2217 outb(GDCREG, buf[i + 55]); 2218 } 2219 inb(crtc_addr + 6); /* reset flip-flop */ 2220 outb(ATC, 0x20); /* enable palette */ 2221 2222#if notyet /* a temporary workaround for kernel panic, XXX */ 2223#ifndef VGA_NO_BIOS 2224 if (adp->va_unit == V_ADP_PRIMARY) { 2225 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */ 2226 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */ 2227 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */ 2228#if 0 2229 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]); 2230 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]); 2231#endif 2232 } 2233#endif /* VGA_NO_BIOS */ 2234#endif /* notyet */ 2235 2236 splx(s); 2237 return 0; 2238} 2239 2240/* 2241 * set_origin(): 2242 * Change the origin (window mapping) of the banked frame buffer. 2243 */ 2244static int 2245vga_set_origin(video_adapter_t *adp, off_t offset) 2246{ 2247 /* 2248 * The standard video modes do not require window mapping; 2249 * always return error. 2250 */ 2251 return ENODEV; 2252} 2253 2254/* 2255 * read_hw_cursor(): 2256 * Read the position of the hardware text cursor. 2257 * 2258 * all adapters 2259 */ 2260static int 2261vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 2262{ 2263 u_int16_t off; 2264 int s; 2265 2266 if (!vga_init_done) 2267 return ENXIO; 2268 2269 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2270 return ENODEV; 2271 2272 s = spltty(); 2273 outb(adp->va_crtc_addr, 14); 2274 off = inb(adp->va_crtc_addr + 1); 2275 outb(adp->va_crtc_addr, 15); 2276 off = (off << 8) | inb(adp->va_crtc_addr + 1); 2277 splx(s); 2278 2279 *row = off / adp->va_info.vi_width; 2280 *col = off % adp->va_info.vi_width; 2281 2282 return 0; 2283} 2284 2285/* 2286 * set_hw_cursor(): 2287 * Move the hardware text cursor. If col and row are both -1, 2288 * the cursor won't be shown. 2289 * 2290 * all adapters 2291 */ 2292static int 2293vga_set_hw_cursor(video_adapter_t *adp, int col, int row) 2294{ 2295 u_int16_t off; 2296 int s; 2297 2298 if (!vga_init_done) 2299 return ENXIO; 2300 2301 if ((col == -1) && (row == -1)) { 2302 off = -1; 2303 } else { 2304 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2305 return ENODEV; 2306 off = row*adp->va_info.vi_width + col; 2307 } 2308 2309 s = spltty(); 2310 outb(adp->va_crtc_addr, 14); 2311 outb(adp->va_crtc_addr + 1, off >> 8); 2312 outb(adp->va_crtc_addr, 15); 2313 outb(adp->va_crtc_addr + 1, off & 0x00ff); 2314 splx(s); 2315 2316 return 0; 2317} 2318 2319/* 2320 * set_hw_cursor_shape(): 2321 * Change the shape of the hardware text cursor. If the height is 2322 * zero or negative, the cursor won't be shown. 2323 * 2324 * all adapters 2325 */ 2326static int 2327vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 2328 int celsize, int blink) 2329{ 2330 int s; 2331 2332 if (!vga_init_done) 2333 return ENXIO; 2334 2335 s = spltty(); 2336 switch (adp->va_type) { 2337 case KD_VGA: 2338 case KD_CGA: 2339 case KD_MONO: 2340 case KD_HERCULES: 2341 default: 2342 if (height <= 0) { 2343 /* make the cursor invisible */ 2344 outb(adp->va_crtc_addr, 10); 2345 outb(adp->va_crtc_addr + 1, 32); 2346 outb(adp->va_crtc_addr, 11); 2347 outb(adp->va_crtc_addr + 1, 0); 2348 } else { 2349 outb(adp->va_crtc_addr, 10); 2350 outb(adp->va_crtc_addr + 1, celsize - base - height); 2351 outb(adp->va_crtc_addr, 11); 2352 outb(adp->va_crtc_addr + 1, celsize - base - 1); 2353 } 2354 break; 2355 case KD_EGA: 2356 if (height <= 0) { 2357 /* make the cursor invisible */ 2358 outb(adp->va_crtc_addr, 10); 2359 outb(adp->va_crtc_addr + 1, celsize); 2360 outb(adp->va_crtc_addr, 11); 2361 outb(adp->va_crtc_addr + 1, 0); 2362 } else { 2363 outb(adp->va_crtc_addr, 10); 2364 outb(adp->va_crtc_addr + 1, celsize - base - height); 2365 outb(adp->va_crtc_addr, 11); 2366 outb(adp->va_crtc_addr + 1, celsize - base); 2367 } 2368 break; 2369 } 2370 splx(s); 2371 2372 return 0; 2373} 2374 2375/* 2376 * blank_display() 2377 * Put the display in power save/power off mode. 2378 * 2379 * all adapters 2380 */ 2381static int 2382vga_blank_display(video_adapter_t *adp, int mode) 2383{ 2384 u_char val; 2385 int s; 2386 2387 s = splhigh(); 2388 switch (adp->va_type) { 2389 case KD_VGA: 2390 switch (mode) { 2391 case V_DISPLAY_SUSPEND: 2392 case V_DISPLAY_STAND_BY: 2393 outb(TSIDX, 0x01); 2394 val = inb(TSREG); 2395 outb(TSIDX, 0x01); 2396 outb(TSREG, val | 0x20); 2397 outb(adp->va_crtc_addr, 0x17); 2398 val = inb(adp->va_crtc_addr + 1); 2399 outb(adp->va_crtc_addr + 1, val & ~0x80); 2400 break; 2401 case V_DISPLAY_BLANK: 2402 outb(TSIDX, 0x01); 2403 val = inb(TSREG); 2404 outb(TSIDX, 0x01); 2405 outb(TSREG, val | 0x20); 2406 break; 2407 case V_DISPLAY_ON: 2408 outb(TSIDX, 0x01); 2409 val = inb(TSREG); 2410 outb(TSIDX, 0x01); 2411 outb(TSREG, val & 0xDF); 2412 outb(adp->va_crtc_addr, 0x17); 2413 val = inb(adp->va_crtc_addr + 1); 2414 outb(adp->va_crtc_addr + 1, val | 0x80); 2415 break; 2416 } 2417 break; 2418 2419 case KD_EGA: 2420 /* no support yet */ 2421 splx(s); 2422 return ENODEV; 2423 2424 case KD_CGA: 2425 switch (mode) { 2426 case V_DISPLAY_SUSPEND: 2427 case V_DISPLAY_STAND_BY: 2428 case V_DISPLAY_BLANK: 2429 outb(adp->va_crtc_addr + 4, 0x25); 2430 break; 2431 case V_DISPLAY_ON: 2432 outb(adp->va_crtc_addr + 4, 0x2d); 2433 break; 2434 } 2435 break; 2436 2437 case KD_MONO: 2438 case KD_HERCULES: 2439 switch (mode) { 2440 case V_DISPLAY_SUSPEND: 2441 case V_DISPLAY_STAND_BY: 2442 case V_DISPLAY_BLANK: 2443 outb(adp->va_crtc_addr + 4, 0x21); 2444 break; 2445 case V_DISPLAY_ON: 2446 outb(adp->va_crtc_addr + 4, 0x29); 2447 break; 2448 } 2449 break; 2450 default: 2451 break; 2452 } 2453 splx(s); 2454 2455 return 0; 2456} 2457 2458/* 2459 * mmap(): 2460 * Mmap frame buffer. 2461 * 2462 * all adapters 2463 */ 2464static int 2465vga_mmap_buf(video_adapter_t *adp, vm_offset_t offset, vm_paddr_t *paddr, 2466 int prot) 2467{ 2468 if (adp->va_info.vi_flags & V_INFO_LINEAR) 2469 return -1; 2470 2471#if VGA_DEBUG > 0 2472 printf("vga_mmap_buf(): window:0x%jx, offset:0x%jx\n", 2473 (uintmax_t)adp->va_info.vi_window, (uintmax_t)offset); 2474#endif 2475 2476 /* XXX: is this correct? */ 2477 if (offset > adp->va_window_size - PAGE_SIZE) 2478 return -1; 2479 2480 *paddr = adp->va_info.vi_window + offset; 2481 return 0; 2482} 2483 2484#ifndef VGA_NO_MODE_CHANGE 2485 2486static void 2487planar_fill(video_adapter_t *adp, int val) 2488{ 2489 int length; 2490 int at; /* position in the frame buffer */ 2491 int l; 2492 2493 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2494 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2495 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2496 outw(GDCIDX, 0xff08); /* bit mask */ 2497 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2498 at = 0; 2499 length = adp->va_line_width*adp->va_info.vi_height; 2500 while (length > 0) { 2501 l = imin(length, adp->va_window_size); 2502 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2503 bzero_io(adp->va_window, l); 2504 length -= l; 2505 at += l; 2506 } 2507 outw(GDCIDX, 0x0000); /* set/reset */ 2508 outw(GDCIDX, 0x0001); /* set/reset enable */ 2509} 2510 2511static void 2512packed_fill(video_adapter_t *adp, int val) 2513{ 2514 int length; 2515 int at; /* position in the frame buffer */ 2516 int l; 2517 2518 at = 0; 2519 length = adp->va_line_width*adp->va_info.vi_height; 2520 while (length > 0) { 2521 l = imin(length, adp->va_window_size); 2522 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2523 fill_io(val, adp->va_window, l); 2524 length -= l; 2525 at += l; 2526 } 2527} 2528 2529static void 2530direct_fill(video_adapter_t *adp, int val) 2531{ 2532 int length; 2533 int at; /* position in the frame buffer */ 2534 int l; 2535 2536 at = 0; 2537 length = adp->va_line_width*adp->va_info.vi_height; 2538 while (length > 0) { 2539 l = imin(length, adp->va_window_size); 2540 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2541 switch (adp->va_info.vi_pixel_size) { 2542 case sizeof(u_int16_t): 2543 fillw_io(val, adp->va_window, l/sizeof(u_int16_t)); 2544 break; 2545 case 3: 2546 /* FIXME */ 2547 break; 2548 case sizeof(u_int32_t): 2549 filll_io(val, adp->va_window, l/sizeof(u_int32_t)); 2550 break; 2551 } 2552 length -= l; 2553 at += l; 2554 } 2555} 2556 2557static int 2558vga_clear(video_adapter_t *adp) 2559{ 2560 switch (adp->va_info.vi_mem_model) { 2561 case V_INFO_MM_TEXT: 2562 /* do nothing? XXX */ 2563 break; 2564 case V_INFO_MM_PLANAR: 2565 planar_fill(adp, 0); 2566 break; 2567 case V_INFO_MM_PACKED: 2568 packed_fill(adp, 0); 2569 break; 2570 case V_INFO_MM_DIRECT: 2571 direct_fill(adp, 0); 2572 break; 2573 } 2574 return 0; 2575} 2576 2577#ifdef notyet 2578static void 2579planar_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2580{ 2581 int banksize; 2582 int bank; 2583 int pos; 2584 int offset; /* offset within window */ 2585 int bx; 2586 int l; 2587 2588 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2589 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2590 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2591 outw(GDCIDX, 0xff08); /* bit mask */ 2592 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2593 2594 banksize = adp->va_window_size; 2595 bank = -1; 2596 while (cy > 0) { 2597 pos = adp->va_line_width*y + x/8; 2598 if (bank != pos/banksize) { 2599 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2600 bank = pos/banksize; 2601 } 2602 offset = pos%banksize; 2603 bx = (x + cx)/8 - x/8; 2604 if (x % 8) { 2605 outw(GDCIDX, ((0xff00 >> (x % 8)) & 0xff00) | 0x08); 2606 writeb(adp->va_window + offset, 0); 2607 ++offset; 2608 --bx; 2609 if (offset >= banksize) { 2610 offset = 0; 2611 ++bank; /* next bank */ 2612 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2613 } 2614 outw(GDCIDX, 0xff08); /* bit mask */ 2615 } 2616 while (bx > 0) { 2617 l = imin(bx, banksize); 2618 bzero_io(adp->va_window + offset, l); 2619 offset += l; 2620 bx -= l; 2621 if (offset >= banksize) { 2622 offset = 0; 2623 ++bank; /* next bank */ 2624 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2625 } 2626 } 2627 if ((x + cx) % 8) { 2628 outw(GDCIDX, (~(0xff00 >> ((x + cx) % 8)) & 0xff00) | 0x08); 2629 writeb(adp->va_window + offset, 0); 2630 ++offset; 2631 if (offset >= banksize) { 2632 offset = 0; 2633 ++bank; /* next bank */ 2634 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2635 } 2636 outw(GDCIDX, 0xff08); /* bit mask */ 2637 } 2638 ++y; 2639 --cy; 2640 } 2641 2642 outw(GDCIDX, 0xff08); /* bit mask */ 2643 outw(GDCIDX, 0x0000); /* set/reset */ 2644 outw(GDCIDX, 0x0001); /* set/reset enable */ 2645} 2646 2647static void 2648packed_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2649{ 2650 int banksize; 2651 int bank; 2652 int pos; 2653 int offset; /* offset within window */ 2654 int end; 2655 2656 banksize = adp->va_window_size; 2657 bank = -1; 2658 cx *= adp->va_info.vi_pixel_size; 2659 while (cy > 0) { 2660 pos = adp->va_line_width*y + x*adp->va_info.vi_pixel_size; 2661 if (bank != pos/banksize) { 2662 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2663 bank = pos/banksize; 2664 } 2665 offset = pos%banksize; 2666 end = imin(offset + cx, banksize); 2667 fill_io(val, adp->va_window + offset, 2668 (end - offset)/adp->va_info.vi_pixel_size); 2669 /* the line may cross the window boundary */ 2670 if (offset + cx > banksize) { 2671 ++bank; /* next bank */ 2672 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2673 end = offset + cx - banksize; 2674 fill_io(val, adp->va_window, end/adp->va_info.vi_pixel_size); 2675 } 2676 ++y; 2677 --cy; 2678 } 2679} 2680 2681static void 2682direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2683{ 2684 int banksize; 2685 int bank; 2686 int pos; 2687 int offset; /* offset within window */ 2688 int end; 2689 2690 /* 2691 * XXX: the function assumes that banksize is a muliple of 2692 * sizeof(u_int16_t). 2693 */ 2694 banksize = adp->va_window_size; 2695 bank = -1; 2696 cx *= sizeof(u_int16_t); 2697 while (cy > 0) { 2698 pos = adp->va_line_width*y + x*sizeof(u_int16_t); 2699 if (bank != pos/banksize) { 2700 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2701 bank = pos/banksize; 2702 } 2703 offset = pos%banksize; 2704 end = imin(offset + cx, banksize); 2705 fillw_io(val, adp->va_window + offset, 2706 (end - offset)/sizeof(u_int16_t)); 2707 /* the line may cross the window boundary */ 2708 if (offset + cx > banksize) { 2709 ++bank; /* next bank */ 2710 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2711 end = offset + cx - banksize; 2712 fillw_io(val, adp->va_window, end/sizeof(u_int16_t)); 2713 } 2714 ++y; 2715 --cy; 2716 } 2717} 2718 2719static void 2720direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2721{ 2722 int banksize; 2723 int bank; 2724 int pos; 2725 int offset; /* offset within window */ 2726 int end; 2727 int i; 2728 int j; 2729 u_int8_t b[3]; 2730 2731 b[0] = val & 0x0000ff; 2732 b[1] = (val >> 8) & 0x0000ff; 2733 b[2] = (val >> 16) & 0x0000ff; 2734 banksize = adp->va_window_size; 2735 bank = -1; 2736 cx *= 3; 2737 while (cy > 0) { 2738 pos = adp->va_line_width*y + x*3; 2739 if (bank != pos/banksize) { 2740 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2741 bank = pos/banksize; 2742 } 2743 offset = pos%banksize; 2744 end = imin(offset + cx, banksize); 2745 for (i = 0, j = offset; j < end; i = (++i)%3, ++j) { 2746 writeb(adp->va_window + j, b[i]); 2747 } 2748 /* the line may cross the window boundary */ 2749 if (offset + cx >= banksize) { 2750 ++bank; /* next bank */ 2751 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2752 j = 0; 2753 end = offset + cx - banksize; 2754 for (; j < end; i = (++i)%3, ++j) { 2755 writeb(adp->va_window + j, b[i]); 2756 } 2757 } 2758 ++y; 2759 --cy; 2760 } 2761} 2762 2763static void 2764direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2765{ 2766 int banksize; 2767 int bank; 2768 int pos; 2769 int offset; /* offset within window */ 2770 int end; 2771 2772 /* 2773 * XXX: the function assumes that banksize is a muliple of 2774 * sizeof(u_int32_t). 2775 */ 2776 banksize = adp->va_window_size; 2777 bank = -1; 2778 cx *= sizeof(u_int32_t); 2779 while (cy > 0) { 2780 pos = adp->va_line_width*y + x*sizeof(u_int32_t); 2781 if (bank != pos/banksize) { 2782 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2783 bank = pos/banksize; 2784 } 2785 offset = pos%banksize; 2786 end = imin(offset + cx, banksize); 2787 filll_io(val, adp->va_window + offset, 2788 (end - offset)/sizeof(u_int32_t)); 2789 /* the line may cross the window boundary */ 2790 if (offset + cx > banksize) { 2791 ++bank; /* next bank */ 2792 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2793 end = offset + cx - banksize; 2794 filll_io(val, adp->va_window, end/sizeof(u_int32_t)); 2795 } 2796 ++y; 2797 --cy; 2798 } 2799} 2800 2801static int 2802vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2803{ 2804 switch (adp->va_info.vi_mem_model) { 2805 case V_INFO_MM_TEXT: 2806 /* do nothing? XXX */ 2807 break; 2808 case V_INFO_MM_PLANAR: 2809 planar_fill_rect(adp, val, x, y, cx, cy); 2810 break; 2811 case V_INFO_MM_PACKED: 2812 packed_fill_rect(adp, val, x, y, cx, cy); 2813 break; 2814 case V_INFO_MM_DIRECT: 2815 switch (adp->va_info.vi_pixel_size) { 2816 case sizeof(u_int16_t): 2817 direct_fill_rect16(adp, val, x, y, cx, cy); 2818 break; 2819 case 3: 2820 direct_fill_rect24(adp, val, x, y, cx, cy); 2821 break; 2822 case sizeof(u_int32_t): 2823 direct_fill_rect32(adp, val, x, y, cx, cy); 2824 break; 2825 } 2826 break; 2827 } 2828 return 0; 2829} 2830#else /* !notyet */ 2831static int 2832vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2833{ 2834 return ENODEV; 2835} 2836#endif /* notyet */ 2837 2838static int 2839vga_bitblt(video_adapter_t *adp,...) 2840{ 2841 /* FIXME */ 2842 return ENODEV; 2843} 2844 2845#endif /* !VGA_NO_MODE_CHANGE */ 2846 2847static int 2848get_palette(video_adapter_t *adp, int base, int count, 2849 u_char *red, u_char *green, u_char *blue, u_char *trans) 2850{ 2851 u_char *r; 2852 u_char *g; 2853 u_char *b; 2854 2855 if ((base < 0) || (base >= 256) || (base + count > 256)) 2856 return EINVAL; 2857 2858 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2859 g = r + count; 2860 b = g + count; 2861 if (vga_save_palette2(adp, base, count, r, g, b)) { 2862 free(r, M_DEVBUF); 2863 return ENODEV; 2864 } 2865 copyout(r, red, count); 2866 copyout(g, green, count); 2867 copyout(b, blue, count); 2868 if (trans != NULL) { 2869 bzero(r, count); 2870 copyout(r, trans, count); 2871 } 2872 free(r, M_DEVBUF); 2873 2874 return 0; 2875} 2876 2877static int 2878set_palette(video_adapter_t *adp, int base, int count, 2879 u_char *red, u_char *green, u_char *blue, u_char *trans) 2880{ 2881 u_char *r; 2882 u_char *g; 2883 u_char *b; 2884 int err; 2885 2886 if ((base < 0) || (base >= 256) || (base + count > 256)) 2887 return EINVAL; 2888 2889 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2890 g = r + count; 2891 b = g + count; 2892 copyin(red, r, count); 2893 copyin(green, g, count); 2894 copyin(blue, b, count); 2895 err = vga_load_palette2(adp, base, count, r, g, b); 2896 free(r, M_DEVBUF); 2897 2898 return (err ? ENODEV : 0); 2899} 2900 2901static int 2902vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 2903{ 2904 switch (cmd) { 2905 case FBIO_GETWINORG: /* get frame buffer window origin */ 2906 *(u_int *)arg = 0; 2907 return 0; 2908 2909 case FBIO_SETWINORG: /* set frame buffer window origin */ 2910 return ENODEV; 2911 2912 case FBIO_SETDISPSTART: /* set display start address */ 2913 return (set_display_start(adp, 2914 ((video_display_start_t *)arg)->x, 2915 ((video_display_start_t *)arg)->y) 2916 ? ENODEV : 0); 2917 2918 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */ 2919 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0); 2920 2921 case FBIO_GETPALETTE: /* get color palette */ 2922 return get_palette(adp, ((video_color_palette_t *)arg)->index, 2923 ((video_color_palette_t *)arg)->count, 2924 ((video_color_palette_t *)arg)->red, 2925 ((video_color_palette_t *)arg)->green, 2926 ((video_color_palette_t *)arg)->blue, 2927 ((video_color_palette_t *)arg)->transparent); 2928 2929 case FBIO_SETPALETTE: /* set color palette */ 2930 return set_palette(adp, ((video_color_palette_t *)arg)->index, 2931 ((video_color_palette_t *)arg)->count, 2932 ((video_color_palette_t *)arg)->red, 2933 ((video_color_palette_t *)arg)->green, 2934 ((video_color_palette_t *)arg)->blue, 2935 ((video_color_palette_t *)arg)->transparent); 2936 2937 case FBIOGTYPE: /* get frame buffer type info. */ 2938 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type); 2939 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height; 2940 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width; 2941 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth; 2942 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8)) 2943 ((struct fbtype *)arg)->fb_cmsize = 0; 2944 else 2945 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth; 2946 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size; 2947 return 0; 2948 2949 case FBIOGETCMAP: /* get color palette */ 2950 return get_palette(adp, ((struct fbcmap *)arg)->index, 2951 ((struct fbcmap *)arg)->count, 2952 ((struct fbcmap *)arg)->red, 2953 ((struct fbcmap *)arg)->green, 2954 ((struct fbcmap *)arg)->blue, NULL); 2955 2956 case FBIOPUTCMAP: /* set color palette */ 2957 return set_palette(adp, ((struct fbcmap *)arg)->index, 2958 ((struct fbcmap *)arg)->count, 2959 ((struct fbcmap *)arg)->red, 2960 ((struct fbcmap *)arg)->green, 2961 ((struct fbcmap *)arg)->blue, NULL); 2962 2963 default: 2964 return fb_commonioctl(adp, cmd, arg); 2965 } 2966} 2967 2968static void 2969dump_buffer(u_char *buf, size_t len) 2970{ 2971 int i; 2972 2973 for(i = 0; i < len;) { 2974 printf("%02x ", buf[i]); 2975 if ((++i % 16) == 0) 2976 printf("\n"); 2977 } 2978} 2979 2980/* 2981 * diag(): 2982 * Print some information about the video adapter and video modes, 2983 * with requested level of details. 2984 * 2985 * all adapters 2986 */ 2987static int 2988vga_diag(video_adapter_t *adp, int level) 2989{ 2990 u_char *mp; 2991#if FB_DEBUG > 1 2992 video_info_t info; 2993 int i; 2994#endif 2995 2996 if (!vga_init_done) 2997 return ENXIO; 2998 2999#if FB_DEBUG > 1 3000#ifndef VGA_NO_BIOS 3001 printf("vga: RTC equip. code:0x%02x, DCC code:0x%02x\n", 3002 rtcin(RTC_EQUIPMENT), readb(BIOS_PADDRTOVADDR(0x488))); 3003 printf("vga: CRTC:0x%x, video option:0x%02x, ", 3004 readw(BIOS_PADDRTOVADDR(0x463)), 3005 readb(BIOS_PADDRTOVADDR(0x487))); 3006 printf("rows:%d, cols:%d, font height:%d\n", 3007 readb(BIOS_PADDRTOVADDR(0x44a)), 3008 readb(BIOS_PADDRTOVADDR(0x484)) + 1, 3009 readb(BIOS_PADDRTOVADDR(0x485))); 3010#endif /* VGA_NO_BIOS */ 3011#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 3012 printf("vga: param table EGA/VGA:%p", video_mode_ptr); 3013 printf(", CGA/MDA:%p\n", video_mode_ptr2); 3014 printf("vga: rows_offset:%d\n", rows_offset); 3015#endif 3016#endif /* FB_DEBUG > 1 */ 3017 3018 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level); 3019 3020#if FB_DEBUG > 1 3021 if (adp->va_flags & V_ADP_MODECHANGE) { 3022 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 3023 if (bios_vmode[i].vi_mode == NA) 3024 continue; 3025 if (get_mode_param(bios_vmode[i].vi_mode) == NULL) 3026 continue; 3027 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level); 3028 } 3029 } else { 3030 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */ 3031 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level); 3032 } 3033#endif /* FB_DEBUG > 1 */ 3034 3035 if ((adp->va_type != KD_EGA) && (adp->va_type != KD_VGA)) 3036 return 0; 3037#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 3038 if (video_mode_ptr == NULL) 3039 printf("vga%d: %s: WARNING: video mode switching is not " 3040 "fully supported on this adapter\n", 3041 adp->va_unit, adp->va_name); 3042#endif 3043 if (level <= 0) 3044 return 0; 3045 3046 if (adp->va_type == KD_VGA) { 3047 printf("VGA parameters upon power-up\n"); 3048 dump_buffer(adpstate.regs, sizeof(adpstate.regs)); 3049 printf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode); 3050 dump_buffer(adpstate2.regs, sizeof(adpstate2.regs)); 3051 } 3052 3053 mp = get_mode_param(adp->va_initial_mode); 3054 if (mp == NULL) /* this shouldn't be happening */ 3055 return 0; 3056 printf("EGA/VGA parameters to be used for mode %d\n", adp->va_initial_mode); 3057 dump_buffer(mp, V_MODE_PARAM_SIZE); 3058 3059 return 0; 3060} 3061