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 */ 30 31#include <sys/cdefs.h> 32__FBSDID("$FreeBSD: stable/11/sys/dev/fb/vga.c 331722 2018-03-29 02:50:57Z eadler $"); 33 34#include "opt_vga.h" 35#include "opt_fb.h" 36#ifndef FB_DEBUG 37#define FB_DEBUG 0 38#endif 39#include "opt_syscons.h" /* should be removed in the future, XXX */ 40 41#include <sys/param.h> 42#include <sys/systm.h> 43#include <sys/kernel.h> 44#include <sys/conf.h> 45#include <sys/fcntl.h> 46#include <sys/malloc.h> 47#include <sys/fbio.h> 48 49#include <vm/vm.h> 50#include <vm/vm_param.h> 51#include <vm/pmap.h> 52 53#include <machine/md_var.h> 54#if defined(__i386__) || defined(__amd64__) 55#include <machine/pc/bios.h> 56#endif 57#include <machine/bus.h> 58 59#include <dev/fb/fbreg.h> 60#include <dev/fb/vgareg.h> 61 62#include <isa/isareg.h> 63 64#ifndef VGA_DEBUG 65#define VGA_DEBUG 0 66#endif 67 68/* XXX machine/pc/bios.h has got too much i386-specific stuff in it */ 69#ifndef BIOS_PADDRTOVADDR 70#define BIOS_PADDRTOVADDR(x) (x) 71#endif 72 73int 74vga_probe_unit(int unit, video_adapter_t *buf, int flags) 75{ 76 video_adapter_t *adp; 77 video_switch_t *sw; 78 int error; 79 80 sw = vid_get_switch(VGA_DRIVER_NAME); 81 if (sw == NULL) 82 return 0; 83 error = (*sw->probe)(unit, &adp, NULL, flags); 84 if (error) 85 return error; 86 bcopy(adp, buf, sizeof(*buf)); 87 return 0; 88} 89 90int 91vga_attach_unit(int unit, vga_softc_t *sc, int flags) 92{ 93 video_switch_t *sw; 94 int error; 95 96 sw = vid_get_switch(VGA_DRIVER_NAME); 97 if (sw == NULL) 98 return ENXIO; 99 100 error = (*sw->probe)(unit, &sc->adp, NULL, flags); 101 if (error) 102 return error; 103 return (*sw->init)(unit, sc->adp, flags); 104} 105 106/* cdev driver functions */ 107 108#ifdef FB_INSTALL_CDEV 109 110int 111vga_open(struct cdev *dev, vga_softc_t *sc, int flag, int mode, struct thread *td) 112{ 113 if (sc == NULL) 114 return ENXIO; 115 if (mode & (O_CREAT | O_APPEND | O_TRUNC)) 116 return ENODEV; 117 118 return genfbopen(&sc->gensc, sc->adp, flag, mode, td); 119} 120 121int 122vga_close(struct cdev *dev, vga_softc_t *sc, int flag, int mode, struct thread *td) 123{ 124 return genfbclose(&sc->gensc, sc->adp, flag, mode, td); 125} 126 127int 128vga_read(struct cdev *dev, vga_softc_t *sc, struct uio *uio, int flag) 129{ 130 return genfbread(&sc->gensc, sc->adp, uio, flag); 131} 132 133int 134vga_write(struct cdev *dev, vga_softc_t *sc, struct uio *uio, int flag) 135{ 136 return genfbread(&sc->gensc, sc->adp, uio, flag); 137} 138 139int 140vga_ioctl(struct cdev *dev, vga_softc_t *sc, u_long cmd, caddr_t arg, int flag, 141 struct thread *td) 142{ 143 return genfbioctl(&sc->gensc, sc->adp, cmd, arg, flag, td); 144} 145 146int 147vga_mmap(struct cdev *dev, vga_softc_t *sc, vm_ooffset_t offset, 148 vm_offset_t *paddr, int prot, vm_memattr_t *memattr) 149{ 150 return genfbmmap(&sc->gensc, sc->adp, offset, paddr, prot, memattr); 151} 152 153#endif /* FB_INSTALL_CDEV */ 154 155/* LOW-LEVEL */ 156 157#include <isa/rtc.h> 158#ifdef __i386__ 159#include <dev/fb/vesa.h> 160#endif 161 162#define probe_done(adp) ((adp)->va_flags & V_ADP_PROBED) 163#define init_done(adp) ((adp)->va_flags & V_ADP_INITIALIZED) 164#define config_done(adp) ((adp)->va_flags & V_ADP_REGISTERED) 165 166/* for compatibility with old kernel options */ 167#ifdef SC_ALT_SEQACCESS 168#undef SC_ALT_SEQACCESS 169#undef VGA_ALT_SEQACCESS 170#define VGA_ALT_SEQACCESS 1 171#endif 172 173#ifdef SLOW_VGA 174#undef SLOW_VGA 175#undef VGA_SLOW_IOACCESS 176#define VGA_SLOW_IOACCESS 177#endif 178 179/* architecture dependent option */ 180#if !defined(__i386__) && !defined(__amd64__) 181#define VGA_NO_BIOS 1 182#endif 183 184/* this should really be in `rtc.h' */ 185#define RTC_EQUIPMENT 0x14 186 187/* various sizes */ 188#define V_MODE_MAP_SIZE (M_VGA_CG320 + 1) 189#define V_MODE_PARAM_SIZE 64 190 191/* video adapter state buffer */ 192struct adp_state { 193 int sig; 194#define V_STATE_SIG 0x736f6962 195 u_char regs[V_MODE_PARAM_SIZE]; 196}; 197typedef struct adp_state adp_state_t; 198 199/* video adapter information */ 200#define DCC_MONO 0 201#define DCC_CGA40 1 202#define DCC_CGA80 2 203#define DCC_EGAMONO 3 204#define DCC_EGA40 4 205#define DCC_EGA80 5 206 207/* 208 * NOTE: `va_window' should have a virtual address, but is initialized 209 * with a physical address in the following table, as verify_adapter() 210 * will perform address conversion at run-time. 211 */ 212static video_adapter_t adapter_init_value[] = { 213 /* DCC_MONO */ 214 { 0, KD_MONO, "mda", 0, 0, 0, IO_MDA, IO_MDASIZE, MONO_CRTC, 215 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 216 0, 0, 0, 0, 7, 0, }, 217 /* DCC_CGA40 */ 218 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 219 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 220 0, 0, 0, 0, 3, 0, }, 221 /* DCC_CGA80 */ 222 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 223 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 224 0, 0, 0, 0, 3, 0, }, 225 /* DCC_EGAMONO */ 226 { 0, KD_EGA, "ega", 0, 0, 0, IO_MDA, 48, MONO_CRTC, 227 EGA_BUF_BASE, EGA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 228 0, 0, 0, 0, 7, 0, }, 229 /* DCC_EGA40 */ 230 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 231 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 232 0, 0, 0, 0, 3, 0, }, 233 /* DCC_EGA80 */ 234 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 235 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 236 0, 0, 0, 0, 3, 0, }, 237}; 238 239static video_adapter_t biosadapter[2]; 240static int biosadapters = 0; 241 242/* video driver declarations */ 243static int vga_configure(int flags); 244 int (*vga_sub_configure)(int flags); 245#if 0 246static int vga_nop(void); 247#endif 248static int vga_error(void); 249static vi_probe_t vga_probe; 250static vi_init_t vga_init; 251static vi_get_info_t vga_get_info; 252static vi_query_mode_t vga_query_mode; 253static vi_set_mode_t vga_set_mode; 254static vi_save_font_t vga_save_font; 255static vi_load_font_t vga_load_font; 256static vi_show_font_t vga_show_font; 257static vi_save_palette_t vga_save_palette; 258static vi_load_palette_t vga_load_palette; 259static vi_set_border_t vga_set_border; 260static vi_save_state_t vga_save_state; 261static vi_load_state_t vga_load_state; 262static vi_set_win_org_t vga_set_origin; 263static vi_read_hw_cursor_t vga_read_hw_cursor; 264static vi_set_hw_cursor_t vga_set_hw_cursor; 265static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape; 266static vi_blank_display_t vga_blank_display; 267static vi_mmap_t vga_mmap_buf; 268static vi_ioctl_t vga_dev_ioctl; 269#ifndef VGA_NO_MODE_CHANGE 270static vi_clear_t vga_clear; 271static vi_fill_rect_t vga_fill_rect; 272static vi_bitblt_t vga_bitblt; 273#else /* VGA_NO_MODE_CHANGE */ 274#define vga_clear (vi_clear_t *)vga_error 275#define vga_fill_rect (vi_fill_rect_t *)vga_error 276#define vga_bitblt (vi_bitblt_t *)vga_error 277#endif 278static vi_diag_t vga_diag; 279 280static video_switch_t vgavidsw = { 281 vga_probe, 282 vga_init, 283 vga_get_info, 284 vga_query_mode, 285 vga_set_mode, 286 vga_save_font, 287 vga_load_font, 288 vga_show_font, 289 vga_save_palette, 290 vga_load_palette, 291 vga_set_border, 292 vga_save_state, 293 vga_load_state, 294 vga_set_origin, 295 vga_read_hw_cursor, 296 vga_set_hw_cursor, 297 vga_set_hw_cursor_shape, 298 vga_blank_display, 299 vga_mmap_buf, 300 vga_dev_ioctl, 301 vga_clear, 302 vga_fill_rect, 303 vga_bitblt, 304 vga_error, 305 vga_error, 306 vga_diag, 307}; 308 309VIDEO_DRIVER(mda, vgavidsw, NULL); 310VIDEO_DRIVER(cga, vgavidsw, NULL); 311VIDEO_DRIVER(ega, vgavidsw, NULL); 312VIDEO_DRIVER(vga, vgavidsw, vga_configure); 313 314/* VGA BIOS standard video modes */ 315#define EOT (-1) 316#define NA (-2) 317 318static video_info_t bios_vmode[] = { 319 /* CGA */ 320 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1, 321 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 322 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1, 323 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 324 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1, 325 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 326 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1, 327 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 328 /* EGA */ 329 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1, 330 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 331 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1, 332 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 333 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1, 334 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 335 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1, 336 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 337 /* VGA */ 338 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1, 339 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 340 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1, 341 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 342 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1, 343 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 344 /* MDA */ 345 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1, 346 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 347 /* EGA */ 348 { M_ENH_B80x43, V_INFO_COLOR, 80, 43, 8, 8, 2, 1, 349 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 350 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1, 351 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 352 /* VGA */ 353 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1, 354 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 355 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1, 356 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 357 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1, 358 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 359 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1, 360 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 361 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1, 362 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 363 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1, 364 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 365 366#ifndef VGA_NO_MODE_CHANGE 367 368#ifdef VGA_WIDTH90 369 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1, 370 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 371 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1, 372 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 373 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1, 374 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 375 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1, 376 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 377 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1, 378 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 379 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1, 380 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 381 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1, 382 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 383 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1, 384 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 385 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1, 386 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 387 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1, 388 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 389#endif /* VGA_WIDTH90 */ 390 391 /* CGA */ 392 { M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 393 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 394 { M_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 395 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 396 { M_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1, 397 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 398 /* EGA */ 399 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4, 400 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 401 V_INFO_MM_PLANAR }, 402 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4, 403 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 404 V_INFO_MM_PLANAR }, 405 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 406 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 , 407 V_INFO_MM_PLANAR }, 408 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 409 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 410 V_INFO_MM_PLANAR }, 411 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2, 412 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 413 V_INFO_MM_PLANAR }, 414 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 415 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 416 V_INFO_MM_PLANAR }, 417 /* VGA */ 418 { M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 419 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 420 V_INFO_MM_PLANAR }, 421 { M_CG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 422 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 423 V_INFO_MM_PLANAR }, 424 { M_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1, 425 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 426 V_INFO_MM_PACKED, 1 }, 427 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 4, 428 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 429 V_INFO_MM_VGAX, 1 }, 430#endif /* VGA_NO_MODE_CHANGE */ 431 432 { EOT }, 433}; 434 435static int vga_init_done = FALSE; 436#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 437static u_char *video_mode_ptr = NULL; /* EGA/VGA */ 438static u_char *video_mode_ptr2 = NULL; /* CGA/MDA */ 439#endif 440static u_char *mode_map[V_MODE_MAP_SIZE]; 441static adp_state_t adpstate; 442static adp_state_t adpstate2; 443static int rows_offset = 1; 444 445/* local macros and functions */ 446#define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 447 448#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 449static void map_mode_table(u_char *map[], u_char *table, int max); 450#endif 451static void clear_mode_map(video_adapter_t *adp, u_char *map[], int max, 452 int color); 453#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 454static int map_mode_num(int mode); 455#endif 456static int map_gen_mode_num(int type, int color, int mode); 457static int map_bios_mode_num(int type, int color, int bios_mode); 458static u_char *get_mode_param(int mode); 459#ifndef VGA_NO_BIOS 460static void fill_adapter_param(int code, video_adapter_t *adp); 461#endif 462static int verify_adapter(video_adapter_t *adp); 463static void update_adapter_info(video_adapter_t *adp, video_info_t *info); 464#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 465#define COMP_IDENTICAL 0 466#define COMP_SIMILAR 1 467#define COMP_DIFFERENT 2 468static int comp_adpregs(u_char *buf1, u_char *buf2); 469#endif 470static int probe_adapters(void); 471static int set_line_length(video_adapter_t *adp, int pixel); 472static int set_display_start(video_adapter_t *adp, int x, int y); 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 filll_io(int val, vm_offset_t d, size_t size); 488static void planar_fill(video_adapter_t *adp, int val); 489static void packed_fill(video_adapter_t *adp, int val); 490static void direct_fill(video_adapter_t *adp, int val); 491#ifdef notyet 492static void planar_fill_rect(video_adapter_t *adp, int val, int x, int y, 493 int cx, int cy); 494static void packed_fill_rect(video_adapter_t *adp, int val, int x, int y, 495 int cx, int cy); 496static void direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, 497 int cx, int cy); 498static void direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, 499 int cx, int cy); 500static void direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, 501 int cx, int cy); 502#endif /* notyet */ 503#endif /* !VGA_NO_MODE_CHANGE */ 504 505static void dump_buffer(u_char *buf, size_t len); 506 507#define ISMAPPED(pa, width) \ 508 (((pa) <= (u_long)0x1000 - (width)) \ 509 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width))) 510 511#define prologue(adp, flag, err) \ 512 if (!vga_init_done || !((adp)->va_flags & (flag))) \ 513 return (err) 514 515/* a backdoor for the console driver */ 516static int 517vga_configure(int flags) 518{ 519 int i; 520 521 probe_adapters(); 522 for (i = 0; i < biosadapters; ++i) { 523 if (!probe_done(&biosadapter[i])) 524 continue; 525 biosadapter[i].va_flags |= V_ADP_INITIALIZED; 526 if (!config_done(&biosadapter[i])) { 527 if (vid_register(&biosadapter[i]) < 0) 528 continue; 529 biosadapter[i].va_flags |= V_ADP_REGISTERED; 530 } 531 } 532 if (vga_sub_configure != NULL) 533 (*vga_sub_configure)(flags); 534 535 return biosadapters; 536} 537 538/* local subroutines */ 539 540#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 541/* construct the mode parameter map */ 542static void 543map_mode_table(u_char *map[], u_char *table, int max) 544{ 545 int i; 546 547 for(i = 0; i < max; ++i) 548 map[i] = table + i*V_MODE_PARAM_SIZE; 549 for(; i < V_MODE_MAP_SIZE; ++i) 550 map[i] = NULL; 551} 552#endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 553 554static void 555clear_mode_map(video_adapter_t *adp, u_char *map[], int max, int color) 556{ 557 video_info_t info; 558 int i; 559 560 /* 561 * NOTE: we don't touch `bios_vmode[]' because it is shared 562 * by all adapters. 563 */ 564 for(i = 0; i < max; ++i) { 565 if (vga_get_info(adp, i, &info)) 566 continue; 567 if ((info.vi_flags & V_INFO_COLOR) != color) 568 map[i] = NULL; 569 } 570} 571 572#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 573/* map the non-standard video mode to a known mode number */ 574static int 575map_mode_num(int mode) 576{ 577 static struct { 578 int from; 579 int to; 580 } mode_map[] = { 581 { M_ENH_B80x43, M_ENH_B80x25 }, 582 { M_ENH_C80x43, M_ENH_C80x25 }, 583 { M_VGA_M80x30, M_VGA_M80x25 }, 584 { M_VGA_C80x30, M_VGA_C80x25 }, 585 { M_VGA_M80x50, M_VGA_M80x25 }, 586 { M_VGA_C80x50, M_VGA_C80x25 }, 587 { M_VGA_M80x60, M_VGA_M80x25 }, 588 { M_VGA_C80x60, M_VGA_C80x25 }, 589#ifdef VGA_WIDTH90 590 { M_VGA_M90x25, M_VGA_M80x25 }, 591 { M_VGA_C90x25, M_VGA_C80x25 }, 592 { M_VGA_M90x30, M_VGA_M80x25 }, 593 { M_VGA_C90x30, M_VGA_C80x25 }, 594 { M_VGA_M90x43, M_VGA_M80x25 }, 595 { M_VGA_C90x43, M_ENH_C80x25 }, 596 { M_VGA_M90x50, M_VGA_M80x25 }, 597 { M_VGA_C90x50, M_VGA_C80x25 }, 598 { M_VGA_M90x60, M_VGA_M80x25 }, 599 { M_VGA_C90x60, M_VGA_C80x25 }, 600#endif 601 { M_VGA_MODEX, M_VGA_CG320 }, 602 }; 603 int i; 604 605 for (i = 0; i < nitems(mode_map); ++i) { 606 if (mode_map[i].from == mode) 607 return mode_map[i].to; 608 } 609 return mode; 610} 611#endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 612 613/* map a generic video mode to a known mode number */ 614static int 615map_gen_mode_num(int type, int color, int mode) 616{ 617 static struct { 618 int from; 619 int to_color; 620 int to_mono; 621 } mode_map[] = { 622 { M_TEXT_80x30, M_VGA_C80x30, M_VGA_M80x30, }, 623 { M_TEXT_80x43, M_ENH_C80x43, M_ENH_B80x43, }, 624 { M_TEXT_80x50, M_VGA_C80x50, M_VGA_M80x50, }, 625 { M_TEXT_80x60, M_VGA_C80x60, M_VGA_M80x60, }, 626 }; 627 int i; 628 629 if (mode == M_TEXT_80x25) { 630 switch (type) { 631 632 case KD_VGA: 633 if (color) 634 return M_VGA_C80x25; 635 else 636 return M_VGA_M80x25; 637 break; 638 639 case KD_EGA: 640 if (color) 641 return M_ENH_C80x25; 642 else 643 return M_EGAMONO80x25; 644 break; 645 646 case KD_CGA: 647 return M_C80x25; 648 649 case KD_MONO: 650 case KD_HERCULES: 651 return M_EGAMONO80x25; /* XXX: this name is confusing */ 652 653 default: 654 return -1; 655 } 656 } 657 658 for (i = 0; i < nitems(mode_map); ++i) { 659 if (mode_map[i].from == mode) 660 return ((color) ? mode_map[i].to_color : mode_map[i].to_mono); 661 } 662 return mode; 663} 664 665/* turn the BIOS video number into our video mode number */ 666static int 667map_bios_mode_num(int type, int color, int bios_mode) 668{ 669 static int cga_modes[7] = { 670 M_B40x25, M_C40x25, /* 0, 1 */ 671 M_B80x25, M_C80x25, /* 2, 3 */ 672 M_BG320, M_CG320, 673 M_BG640, 674 }; 675 static int ega_modes[17] = { 676 M_ENH_B40x25, M_ENH_C40x25, /* 0, 1 */ 677 M_ENH_B80x25, M_ENH_C80x25, /* 2, 3 */ 678 M_BG320, M_CG320, 679 M_BG640, 680 M_EGAMONO80x25, /* 7 */ 681 8, 9, 10, 11, 12, 682 M_CG320_D, 683 M_CG640_E, 684 M_ENHMONOAPA2, /* XXX: video momery > 64K */ 685 M_ENH_CG640, /* XXX: video momery > 64K */ 686 }; 687 static int vga_modes[20] = { 688 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */ 689 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */ 690 M_BG320, M_CG320, 691 M_BG640, 692 M_VGA_M80x25, /* 7 */ 693 8, 9, 10, 11, 12, 694 M_CG320_D, 695 M_CG640_E, 696 M_ENHMONOAPA2, 697 M_ENH_CG640, 698 M_BG640x480, M_CG640x480, 699 M_VGA_CG320, 700 }; 701 702 switch (type) { 703 704 case KD_VGA: 705 if (bios_mode < nitems(vga_modes)) 706 return vga_modes[bios_mode]; 707 else if (color) 708 return M_VGA_C80x25; 709 else 710 return M_VGA_M80x25; 711 break; 712 713 case KD_EGA: 714 if (bios_mode < nitems(ega_modes)) 715 return ega_modes[bios_mode]; 716 else if (color) 717 return M_ENH_C80x25; 718 else 719 return M_EGAMONO80x25; 720 break; 721 722 case KD_CGA: 723 if (bios_mode < nitems(cga_modes)) 724 return cga_modes[bios_mode]; 725 else 726 return M_C80x25; 727 break; 728 729 case KD_MONO: 730 case KD_HERCULES: 731 return M_EGAMONO80x25; /* XXX: this name is confusing */ 732 733 default: 734 break; 735 } 736 return -1; 737} 738 739/* look up a parameter table entry */ 740static u_char 741*get_mode_param(int mode) 742{ 743#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 744 if (mode >= V_MODE_MAP_SIZE) 745 mode = map_mode_num(mode); 746#endif 747 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE)) 748 return mode_map[mode]; 749 else 750 return NULL; 751} 752 753#ifndef VGA_NO_BIOS 754static void 755fill_adapter_param(int code, video_adapter_t *adp) 756{ 757 static struct { 758 int primary; 759 int secondary; 760 } dcc[] = { 761 { DCC_MONO, DCC_EGA40 /* CGA monitor */ }, 762 { DCC_MONO, DCC_EGA80 /* CGA monitor */ }, 763 { DCC_MONO, DCC_EGA80 }, 764 { DCC_MONO, DCC_EGA80 }, 765 { DCC_CGA40, DCC_EGAMONO }, 766 { DCC_CGA80, DCC_EGAMONO }, 767 { DCC_EGA40 /* CGA monitor */, DCC_MONO}, 768 { DCC_EGA80 /* CGA monitor */, DCC_MONO}, 769 { DCC_EGA80, DCC_MONO }, 770 { DCC_EGA80, DCC_MONO }, 771 { DCC_EGAMONO, DCC_CGA40 }, 772 { DCC_EGAMONO, DCC_CGA80 }, 773 }; 774 775 if ((code < 0) || (code >= nitems(dcc))) { 776 adp[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 777 adp[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 778 } else { 779 adp[V_ADP_PRIMARY] = adapter_init_value[dcc[code].primary]; 780 adp[V_ADP_SECONDARY] = adapter_init_value[dcc[code].secondary]; 781 } 782} 783#endif /* VGA_NO_BIOS */ 784 785static int 786verify_adapter(video_adapter_t *adp) 787{ 788 vm_offset_t buf; 789 u_int16_t v; 790#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 791 u_int32_t p; 792#endif 793 794 buf = BIOS_PADDRTOVADDR(adp->va_window); 795 v = readw(buf); 796 writew(buf, 0xA55A); 797 if (readw(buf) != 0xA55A) 798 return ENXIO; 799 writew(buf, v); 800 801 switch (adp->va_type) { 802 803 case KD_EGA: 804 outb(adp->va_crtc_addr, 7); 805 if (inb(adp->va_crtc_addr) == 7) { 806 adp->va_type = KD_VGA; 807 adp->va_name = "vga"; 808 adp->va_flags |= V_ADP_STATESAVE | V_ADP_PALETTE; 809 } 810 adp->va_flags |= V_ADP_STATELOAD | V_ADP_BORDER; 811 /* the color adapter may be in the 40x25 mode... XXX */ 812 813#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 814 /* get the BIOS video mode pointer */ 815 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8); 816 p = BIOS_SADDRTOLADDR(p); 817 if (ISMAPPED(p, sizeof(u_int32_t))) { 818 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p); 819 p = BIOS_SADDRTOLADDR(p); 820 if (ISMAPPED(p, V_MODE_PARAM_SIZE)) 821 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p); 822 } 823#endif 824 break; 825 826 case KD_CGA: 827 adp->va_flags |= V_ADP_COLOR | V_ADP_BORDER; 828 /* may be in the 40x25 mode... XXX */ 829#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 830 /* get the BIOS video mode pointer */ 831 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 832 p = BIOS_SADDRTOLADDR(p); 833 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 834#endif 835 break; 836 837 case KD_MONO: 838#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 839 /* get the BIOS video mode pointer */ 840 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 841 p = BIOS_SADDRTOLADDR(p); 842 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 843#endif 844 break; 845 } 846 847 return 0; 848} 849 850static void 851update_adapter_info(video_adapter_t *adp, video_info_t *info) 852{ 853 adp->va_flags &= ~V_ADP_COLOR; 854 adp->va_flags |= 855 (info->vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; 856 adp->va_crtc_addr = 857 (adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; 858 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window); 859 adp->va_window_size = info->vi_window_size; 860 adp->va_window_gran = info->vi_window_gran; 861 adp->va_window_orig = 0; 862 /* XXX */ 863 adp->va_buffer = info->vi_buffer; 864 adp->va_buffer_size = info->vi_buffer_size; 865 if (info->vi_mem_model == V_INFO_MM_VGAX) { 866 adp->va_line_width = info->vi_width/2; 867 } else if (info->vi_flags & V_INFO_GRAPHICS) { 868 switch (info->vi_depth/info->vi_planes) { 869 case 1: 870 adp->va_line_width = info->vi_width/8; 871 break; 872 case 2: 873 adp->va_line_width = info->vi_width/4; 874 break; 875 case 4: 876 adp->va_line_width = info->vi_width/2; 877 break; 878 case 8: 879 default: /* shouldn't happen */ 880 adp->va_line_width = info->vi_width; 881 break; 882 } 883 } else { 884 adp->va_line_width = info->vi_width; 885 } 886 adp->va_disp_start.x = 0; 887 adp->va_disp_start.y = 0; 888 bcopy(info, &adp->va_info, sizeof(adp->va_info)); 889} 890 891#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 892/* compare two parameter table entries */ 893static int 894comp_adpregs(u_char *buf1, u_char *buf2) 895{ 896 static struct { 897 u_char mask; 898 } params[V_MODE_PARAM_SIZE] = { 899 {0xff}, {0x00}, {0xff}, /* COLS}, ROWS}, POINTS */ 900 {0x00}, {0x00}, /* page length */ 901 {0xfe}, {0xff}, {0xff}, {0xff}, /* sequencer registers */ 902 {0xf3}, /* misc register */ 903 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, /* CRTC */ 904 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, 905 {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, 906 {0x00}, {0xff}, {0x7f}, {0xff}, {0xff}, 907 {0x7f}, {0xff}, {0xff}, {0xef}, {0xff}, 908 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* attribute controller regs */ 909 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 910 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 911 {0xff}, {0xff}, {0xff}, {0xff}, {0xf0}, 912 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* GDC register */ 913 {0xff}, {0xff}, {0xff}, {0xff}, 914 }; 915 int identical = TRUE; 916 int i; 917 918 if ((buf1 == NULL) || (buf2 == NULL)) 919 return COMP_DIFFERENT; 920 921 for (i = 0; i < nitems(params); ++i) { 922 if (params[i].mask == 0) /* don't care */ 923 continue; 924 if ((buf1[i] & params[i].mask) != (buf2[i] & params[i].mask)) 925 return COMP_DIFFERENT; 926 if (buf1[i] != buf2[i]) 927 identical = FALSE; 928 } 929 return (identical) ? COMP_IDENTICAL : COMP_SIMILAR; 930} 931#endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 932 933/* probe video adapters and return the number of detected adapters */ 934static int 935probe_adapters(void) 936{ 937 video_adapter_t *adp; 938 video_info_t info; 939#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 940 u_char *mp; 941#endif 942 int i; 943 944 /* do this test only once */ 945 if (vga_init_done) 946 return biosadapters; 947 vga_init_done = TRUE; 948 949 /* 950 * Locate display adapters. 951 * The AT architecture supports up to two adapters. `syscons' allows 952 * the following combinations of adapters: 953 * 1) MDA + CGA 954 * 2) MDA + EGA/VGA color 955 * 3) CGA + EGA/VGA mono 956 * Note that `syscons' doesn't bother with MCGA as it is only 957 * avaiable for low end PS/2 models which has 80286 or earlier CPUs, 958 * thus, they are not running FreeBSD! 959 * When there are two adapaters in the system, one becomes `primary' 960 * and the other `secondary'. The EGA adapter has a set of DIP 961 * switches on board for this information and the EGA BIOS copies 962 * it in the BIOS data area BIOSDATA_VIDEOSWITCH (40:88). 963 * The VGA BIOS has more sophisticated mechanism and has this 964 * information in BIOSDATA_DCCINDEX (40:8a), but it also maintains 965 * compatibility with the EGA BIOS by updating BIOSDATA_VIDEOSWITCH. 966 */ 967 968 /* 969 * Check rtc and BIOS data area. 970 * XXX: we don't use BIOSDATA_EQUIPMENT, since it is not a dead 971 * copy of RTC_EQUIPMENT. Bits 4 and 5 of ETC_EQUIPMENT are 972 * zeros for EGA and VGA. However, the EGA/VGA BIOS sets 973 * these bits in BIOSDATA_EQUIPMENT according to the monitor 974 * type detected. 975 */ 976#ifndef VGA_NO_BIOS 977 if (*(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8)) { 978 /* EGA/VGA BIOS is present */ 979 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 980 biosadapter); 981 } else { 982 switch ((rtcin(RTC_EQUIPMENT) >> 4) & 3) { /* bit 4 and 5 */ 983 case 0: 984 /* EGA/VGA: shouldn't be happening */ 985 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 986 biosadapter); 987 break; 988 case 1: 989 /* CGA 40x25 */ 990 /* FIXME: switch to the 80x25 mode? XXX */ 991 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA40]; 992 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 993 break; 994 case 2: 995 /* CGA 80x25 */ 996 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA80]; 997 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 998 break; 999 case 3: 1000 /* MDA */ 1001 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 1002 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 1003 break; 1004 } 1005 } 1006#else 1007 /* assume EGA/VGA? XXX */ 1008 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_EGA80]; 1009 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 1010#endif /* VGA_NO_BIOS */ 1011 1012 biosadapters = 0; 1013 if (verify_adapter(&biosadapter[V_ADP_SECONDARY]) == 0) { 1014 ++biosadapters; 1015 biosadapter[V_ADP_SECONDARY].va_flags |= V_ADP_PROBED; 1016 biosadapter[V_ADP_SECONDARY].va_mode = 1017 biosadapter[V_ADP_SECONDARY].va_initial_mode = 1018 map_bios_mode_num(biosadapter[V_ADP_SECONDARY].va_type, 1019 biosadapter[V_ADP_SECONDARY].va_flags 1020 & V_ADP_COLOR, 1021 biosadapter[V_ADP_SECONDARY].va_initial_bios_mode); 1022 } else { 1023 biosadapter[V_ADP_SECONDARY].va_type = -1; 1024 } 1025 if (verify_adapter(&biosadapter[V_ADP_PRIMARY]) == 0) { 1026 ++biosadapters; 1027 biosadapter[V_ADP_PRIMARY].va_flags |= V_ADP_PROBED; 1028#ifndef VGA_NO_BIOS 1029 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 1030 readb(BIOS_PADDRTOVADDR(0x449)); 1031#else 1032 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 3; /* XXX */ 1033#endif 1034 biosadapter[V_ADP_PRIMARY].va_mode = 1035 biosadapter[V_ADP_PRIMARY].va_initial_mode = 1036 map_bios_mode_num(biosadapter[V_ADP_PRIMARY].va_type, 1037 biosadapter[V_ADP_PRIMARY].va_flags & V_ADP_COLOR, 1038 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode); 1039 } else { 1040 biosadapter[V_ADP_PRIMARY] = biosadapter[V_ADP_SECONDARY]; 1041 biosadapter[V_ADP_SECONDARY].va_type = -1; 1042 } 1043 if (biosadapters == 0) 1044 return biosadapters; 1045 biosadapter[V_ADP_PRIMARY].va_unit = V_ADP_PRIMARY; 1046 biosadapter[V_ADP_SECONDARY].va_unit = V_ADP_SECONDARY; 1047 1048#if 0 /* we don't need these... */ 1049 fb_init_struct(&biosadapter[V_ADP_PRIMARY], ...); 1050 fb_init_struct(&biosadapter[V_ADP_SECONDARY], ...); 1051#endif 1052 1053#ifdef notyet 1054 /* 1055 * We cannot have two video adapter of the same type; there must be 1056 * only one of color or mono adapter, or one each of them. 1057 */ 1058 if (biosadapters > 1) { 1059 if (!((biosadapter[0].va_flags ^ biosadapter[1].va_flags) 1060 & V_ADP_COLOR)) 1061 /* we have two mono or color adapters!! */ 1062 return (biosadapters = 0); 1063 } 1064#endif 1065 1066 /* 1067 * Ensure a zero start address. The registers are w/o 1068 * for old hardware so it's too hard to relocate the active screen 1069 * memory. 1070 * This must be done before vga_save_state() for VGA. 1071 */ 1072 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 12); 1073 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1074 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 13); 1075 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1076 1077 /* the video mode parameter table in EGA/VGA BIOS */ 1078 /* NOTE: there can be only one EGA/VGA, wheather color or mono, 1079 * recognized by the video BIOS. 1080 */ 1081 if ((biosadapter[V_ADP_PRIMARY].va_type == KD_EGA) || 1082 (biosadapter[V_ADP_PRIMARY].va_type == KD_VGA)) { 1083 adp = &biosadapter[V_ADP_PRIMARY]; 1084 } else if ((biosadapter[V_ADP_SECONDARY].va_type == KD_EGA) || 1085 (biosadapter[V_ADP_SECONDARY].va_type == KD_VGA)) { 1086 adp = &biosadapter[V_ADP_SECONDARY]; 1087 } else { 1088 adp = NULL; 1089 } 1090 bzero(mode_map, sizeof(mode_map)); 1091 if (adp != NULL) { 1092 if (adp->va_type == KD_VGA) { 1093 vga_save_state(adp, &adpstate, sizeof(adpstate)); 1094#if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1095 mode_map[adp->va_initial_mode] = adpstate.regs; 1096 rows_offset = 1; 1097#else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1098 if (video_mode_ptr == NULL) { 1099 mode_map[adp->va_initial_mode] = adpstate.regs; 1100 rows_offset = 1; 1101 } else { 1102 /* discard the table if we are not familiar with it... */ 1103 map_mode_table(mode_map, video_mode_ptr, M_VGA_CG320 + 1); 1104 mp = get_mode_param(adp->va_initial_mode); 1105 if (mp != NULL) 1106 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs)); 1107 switch (comp_adpregs(adpstate.regs, mp)) { 1108 case COMP_IDENTICAL: 1109 /* 1110 * OK, this parameter table looks reasonably familiar 1111 * to us... 1112 */ 1113 /* 1114 * This is a kludge for Toshiba DynaBook SS433 1115 * whose BIOS video mode table entry has the actual # 1116 * of rows at the offset 1; BIOSes from other 1117 * manufacturers store the # of rows - 1 there. XXX 1118 */ 1119 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1120 break; 1121 1122 case COMP_SIMILAR: 1123 /* 1124 * Not exactly the same, but similar enough to be 1125 * trusted. However, use the saved register values 1126 * for the initial mode and other modes which are 1127 * based on the initial mode. 1128 */ 1129 mode_map[adp->va_initial_mode] = adpstate.regs; 1130 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1131 adpstate.regs[1] -= rows_offset - 1; 1132 break; 1133 1134 case COMP_DIFFERENT: 1135 default: 1136 /* 1137 * Don't use the parameter table in BIOS. It doesn't 1138 * look familiar to us. Video mode switching is allowed 1139 * only if the new mode is the same as or based on 1140 * the initial mode. 1141 */ 1142 video_mode_ptr = NULL; 1143 bzero(mode_map, sizeof(mode_map)); 1144 mode_map[adp->va_initial_mode] = adpstate.regs; 1145 rows_offset = 1; 1146 break; 1147 } 1148 } 1149#endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1150 1151#ifndef VGA_NO_MODE_CHANGE 1152 adp->va_flags |= V_ADP_MODECHANGE; 1153#endif 1154#ifndef VGA_NO_FONT_LOADING 1155 adp->va_flags |= V_ADP_FONT; 1156#endif 1157 } else if (adp->va_type == KD_EGA) { 1158#if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1159 rows_offset = 1; 1160#else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1161 if (video_mode_ptr == NULL) { 1162 rows_offset = 1; 1163 } else { 1164 map_mode_table(mode_map, video_mode_ptr, M_ENH_C80x25 + 1); 1165 /* XXX how can one validate the EGA table... */ 1166 mp = get_mode_param(adp->va_initial_mode); 1167 if (mp != NULL) { 1168 adp->va_flags |= V_ADP_MODECHANGE; 1169#ifndef VGA_NO_FONT_LOADING 1170 adp->va_flags |= V_ADP_FONT; 1171#endif 1172 rows_offset = 1; 1173 } else { 1174 /* 1175 * This is serious. We will not be able to switch video 1176 * modes at all... 1177 */ 1178 video_mode_ptr = NULL; 1179 bzero(mode_map, sizeof(mode_map)); 1180 rows_offset = 1; 1181 } 1182 } 1183#endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1184 } 1185 } 1186 1187 /* remove conflicting modes if we have more than one adapter */ 1188 if (biosadapters > 0) { 1189 for (i = 0; i < biosadapters; ++i) { 1190 if (!(biosadapter[i].va_flags & V_ADP_MODECHANGE)) 1191 continue; 1192 clear_mode_map(&biosadapter[i], mode_map, M_VGA_CG320 + 1, 1193 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1194 V_INFO_COLOR : 0); 1195 if ((biosadapter[i].va_type == KD_VGA) 1196 || (biosadapter[i].va_type == KD_EGA)) { 1197 biosadapter[i].va_io_base = 1198 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1199 IO_VGA : IO_MDA; 1200 biosadapter[i].va_io_size = 32; 1201 } 1202 } 1203 } 1204 1205 /* buffer address */ 1206 vga_get_info(&biosadapter[V_ADP_PRIMARY], 1207 biosadapter[V_ADP_PRIMARY].va_initial_mode, &info); 1208 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1209 update_adapter_info(&biosadapter[V_ADP_PRIMARY], &info); 1210 1211 if (biosadapters > 1) { 1212 vga_get_info(&biosadapter[V_ADP_SECONDARY], 1213 biosadapter[V_ADP_SECONDARY].va_initial_mode, &info); 1214 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1215 update_adapter_info(&biosadapter[V_ADP_SECONDARY], &info); 1216 } 1217 1218 /* 1219 * XXX: we should verify the following values for the primary adapter... 1220 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463); 1221 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02) 1222 * ? 0 : V_ADP_COLOR; 1223 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a); 1224 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484); 1225 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485); 1226 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c); 1227 */ 1228 1229 return biosadapters; 1230} 1231 1232/* set the scan line length in pixel */ 1233static int 1234set_line_length(video_adapter_t *adp, int pixel) 1235{ 1236 u_char *mp; 1237 int ppw; /* pixels per word */ 1238 int bpl; /* bytes per line */ 1239 int count; 1240 1241 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1242 return ENODEV; 1243 mp = get_mode_param(adp->va_mode); 1244 if (mp == NULL) 1245 return EINVAL; 1246 1247 switch (adp->va_info.vi_mem_model) { 1248 case V_INFO_MM_PLANAR: 1249 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1250 count = howmany(pixel, ppw)/2; 1251 bpl = (howmany(pixel, ppw)/2)*4; 1252 break; 1253 case V_INFO_MM_PACKED: 1254 count = (pixel + 7)/8; 1255 bpl = rounddown(pixel + 7, 8); 1256 break; 1257 case V_INFO_MM_TEXT: 1258 count = (pixel + 7)/8; /* columns */ 1259 bpl = (pixel + 7)/8; /* columns */ 1260 break; 1261 default: 1262 return ENODEV; 1263 } 1264 1265 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */ 1266 count *= 2; /* byte mode */ 1267 outb(adp->va_crtc_addr, 0x13); 1268 outb(adp->va_crtc_addr + 1, count); 1269 adp->va_line_width = bpl; 1270 1271 return 0; 1272} 1273 1274static int 1275set_display_start(video_adapter_t *adp, int x, int y) 1276{ 1277 int off; /* byte offset (graphics mode)/word offset (text mode) */ 1278 int poff; /* pixel offset */ 1279 int roff; /* row offset */ 1280 int ppb; /* pixels per byte */ 1281 1282 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1283 x &= ~7; 1284 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) { 1285 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1286 off = y*adp->va_line_width + x/ppb; 1287 roff = 0; 1288 poff = x%ppb; 1289 } else { 1290 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1291 outb(TSIDX, 1); 1292 if (inb(TSREG) & 1) 1293 ppb = 9; 1294 else 1295 ppb = 8; 1296 } else { 1297 ppb = 8; 1298 } 1299 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb; 1300 roff = y%adp->va_info.vi_cheight; 1301 /* FIXME: is this correct? XXX */ 1302 if (ppb == 8) 1303 poff = x%ppb; 1304 else 1305 poff = (x + 8)%ppb; 1306 } 1307 1308 /* start address */ 1309 outb(adp->va_crtc_addr, 0xc); /* high */ 1310 outb(adp->va_crtc_addr + 1, off >> 8); 1311 outb(adp->va_crtc_addr, 0xd); /* low */ 1312 outb(adp->va_crtc_addr + 1, off & 0xff); 1313 1314 /* horizontal pel pan */ 1315 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1316 inb(adp->va_crtc_addr + 6); 1317 outb(ATC, 0x13 | 0x20); 1318 outb(ATC, poff); 1319 inb(adp->va_crtc_addr + 6); 1320 outb(ATC, 0x20); 1321 } 1322 1323 /* preset raw scan */ 1324 outb(adp->va_crtc_addr, 8); 1325 outb(adp->va_crtc_addr + 1, roff); 1326 1327 adp->va_disp_start.x = x; 1328 adp->va_disp_start.y = y; 1329 return 0; 1330} 1331 1332#ifndef VGA_NO_MODE_CHANGE 1333#if defined(__i386__) || defined(__amd64__) /* XXX */ 1334static void 1335fill(int val, void *d, size_t size) 1336{ 1337 u_char *p = d; 1338 1339 while (size-- > 0) 1340 *p++ = val; 1341} 1342#endif /* __i386__ */ 1343 1344static void 1345filll_io(int val, vm_offset_t d, size_t size) 1346{ 1347 while (size-- > 0) { 1348 writel(d, val); 1349 d += sizeof(u_int32_t); 1350 } 1351} 1352#endif /* !VGA_NO_MODE_CHANGE */ 1353 1354/* entry points */ 1355 1356#if 0 1357static int 1358vga_nop(void) 1359{ 1360 return 0; 1361} 1362#endif 1363 1364static int 1365vga_error(void) 1366{ 1367 return ENODEV; 1368} 1369 1370static int 1371vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 1372{ 1373 probe_adapters(); 1374 if (unit >= biosadapters) 1375 return ENXIO; 1376 1377 *adpp = &biosadapter[unit]; 1378 1379 return 0; 1380} 1381 1382static int 1383vga_init(int unit, video_adapter_t *adp, int flags) 1384{ 1385 if ((unit >= biosadapters) || (adp == NULL) || !probe_done(adp)) 1386 return ENXIO; 1387 1388 if (!init_done(adp)) { 1389 /* nothing to do really... */ 1390 adp->va_flags |= V_ADP_INITIALIZED; 1391 } 1392 1393 if (!config_done(adp)) { 1394 if (vid_register(adp) < 0) 1395 return ENXIO; 1396 adp->va_flags |= V_ADP_REGISTERED; 1397 } 1398 if (vga_sub_configure != NULL) 1399 (*vga_sub_configure)(0); 1400 1401 return 0; 1402} 1403 1404/* 1405 * get_info(): 1406 * Return the video_info structure of the requested video mode. 1407 * 1408 * all adapters 1409 */ 1410static int 1411vga_get_info(video_adapter_t *adp, int mode, video_info_t *info) 1412{ 1413 int i; 1414 1415 if (!vga_init_done) 1416 return ENXIO; 1417 1418 mode = map_gen_mode_num(adp->va_type, adp->va_flags & V_ADP_COLOR, mode); 1419#ifndef VGA_NO_MODE_CHANGE 1420 if (adp->va_flags & V_ADP_MODECHANGE) { 1421 /* 1422 * If the parameter table entry for this mode is not found, 1423 * the mode is not supported... 1424 */ 1425 if (get_mode_param(mode) == NULL) 1426 return EINVAL; 1427 } else 1428#endif /* VGA_NO_MODE_CHANGE */ 1429 { 1430 /* 1431 * Even if we don't support video mode switching on this adapter, 1432 * the information on the initial (thus current) video mode 1433 * should be made available. 1434 */ 1435 if (mode != adp->va_initial_mode) 1436 return EINVAL; 1437 } 1438 1439 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1440 if (bios_vmode[i].vi_mode == NA) 1441 continue; 1442 if (mode == bios_vmode[i].vi_mode) { 1443 *info = bios_vmode[i]; 1444 /* XXX */ 1445 info->vi_buffer_size = info->vi_window_size*info->vi_planes; 1446 return 0; 1447 } 1448 } 1449 return EINVAL; 1450} 1451 1452/* 1453 * query_mode(): 1454 * Find a video mode matching the requested parameters. 1455 * Fields filled with 0 are considered "don't care" fields and 1456 * match any modes. 1457 * 1458 * all adapters 1459 */ 1460static int 1461vga_query_mode(video_adapter_t *adp, video_info_t *info) 1462{ 1463 int i; 1464 1465 if (!vga_init_done) 1466 return ENXIO; 1467 1468 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1469 if (bios_vmode[i].vi_mode == NA) 1470 continue; 1471 1472 if ((info->vi_width != 0) 1473 && (info->vi_width != bios_vmode[i].vi_width)) 1474 continue; 1475 if ((info->vi_height != 0) 1476 && (info->vi_height != bios_vmode[i].vi_height)) 1477 continue; 1478 if ((info->vi_cwidth != 0) 1479 && (info->vi_cwidth != bios_vmode[i].vi_cwidth)) 1480 continue; 1481 if ((info->vi_cheight != 0) 1482 && (info->vi_cheight != bios_vmode[i].vi_cheight)) 1483 continue; 1484 if ((info->vi_depth != 0) 1485 && (info->vi_depth != bios_vmode[i].vi_depth)) 1486 continue; 1487 if ((info->vi_planes != 0) 1488 && (info->vi_planes != bios_vmode[i].vi_planes)) 1489 continue; 1490 /* XXX: should check pixel format, memory model */ 1491 if ((info->vi_flags != 0) 1492 && (info->vi_flags != bios_vmode[i].vi_flags)) 1493 continue; 1494 1495 /* verify if this mode is supported on this adapter */ 1496 if (vga_get_info(adp, bios_vmode[i].vi_mode, info)) 1497 continue; 1498 return 0; 1499 } 1500 return ENODEV; 1501} 1502 1503/* 1504 * set_mode(): 1505 * Change the video mode. 1506 * 1507 * EGA/VGA 1508 */ 1509 1510#ifndef VGA_NO_MODE_CHANGE 1511#ifdef VGA_WIDTH90 1512static void 1513set_width90(adp_state_t *params) 1514{ 1515 /* 1516 * Based on code submitted by Kelly Yancey (kbyanc@freedomnet.com) 1517 * and alexv@sui.gda.itesm.mx. 1518 */ 1519 params->regs[5] |= 1; /* toggle 8 pixel wide fonts */ 1520 params->regs[10+0x0] = 0x6b; 1521 params->regs[10+0x1] = 0x59; 1522 params->regs[10+0x2] = 0x5a; 1523 params->regs[10+0x3] = 0x8e; 1524 params->regs[10+0x4] = 0x5e; 1525 params->regs[10+0x5] = 0x8a; 1526 params->regs[10+0x13] = 45; 1527 params->regs[35+0x13] = 0; 1528} 1529#endif /* VGA_WIDTH90 */ 1530#endif /* !VGA_NO_MODE_CHANGE */ 1531 1532static int 1533vga_set_mode(video_adapter_t *adp, int mode) 1534{ 1535#ifndef VGA_NO_MODE_CHANGE 1536 video_info_t info; 1537 adp_state_t params; 1538 1539 prologue(adp, V_ADP_MODECHANGE, ENODEV); 1540 1541 mode = map_gen_mode_num(adp->va_type, 1542 adp->va_flags & V_ADP_COLOR, mode); 1543 if (vga_get_info(adp, mode, &info)) 1544 return EINVAL; 1545 1546#if VGA_DEBUG > 1 1547 printf("vga_set_mode(): setting mode %d\n", mode); 1548#endif 1549 1550 params.sig = V_STATE_SIG; 1551 bcopy(get_mode_param(mode), params.regs, sizeof(params.regs)); 1552 1553 switch (mode) { 1554#ifdef VGA_WIDTH90 1555 case M_VGA_C90x60: case M_VGA_M90x60: 1556 set_width90(¶ms); 1557 /* FALLTHROUGH */ 1558#endif 1559 case M_VGA_C80x60: case M_VGA_M80x60: 1560 params.regs[2] = 0x08; 1561 params.regs[19] = 0x47; 1562 goto special_480l; 1563 1564#ifdef VGA_WIDTH90 1565 case M_VGA_C90x30: case M_VGA_M90x30: 1566 set_width90(¶ms); 1567 /* FALLTHROUGH */ 1568#endif 1569 case M_VGA_C80x30: case M_VGA_M80x30: 1570 params.regs[19] = 0x4f; 1571special_480l: 1572 params.regs[9] |= 0xc0; 1573 params.regs[16] = 0x08; 1574 params.regs[17] = 0x3e; 1575 params.regs[26] = 0xea; 1576 params.regs[28] = 0xdf; 1577 params.regs[31] = 0xe7; 1578 params.regs[32] = 0x04; 1579 goto setup_mode; 1580 1581#ifdef VGA_WIDTH90 1582 case M_VGA_C90x43: case M_VGA_M90x43: 1583 set_width90(¶ms); 1584 /* FALLTHROUGH */ 1585#endif 1586 case M_ENH_C80x43: case M_ENH_B80x43: 1587 params.regs[28] = 87; 1588 goto special_80x50; 1589 1590#ifdef VGA_WIDTH90 1591 case M_VGA_C90x50: case M_VGA_M90x50: 1592 set_width90(¶ms); 1593 /* FALLTHROUGH */ 1594#endif 1595 case M_VGA_C80x50: case M_VGA_M80x50: 1596special_80x50: 1597 params.regs[2] = 8; 1598 params.regs[19] = 7; 1599 goto setup_mode; 1600 1601#ifdef VGA_WIDTH90 1602 case M_VGA_C90x25: case M_VGA_M90x25: 1603 set_width90(¶ms); 1604 /* FALLTHROUGH */ 1605#endif 1606 case M_VGA_C40x25: case M_VGA_C80x25: 1607 case M_VGA_M80x25: 1608 case M_B40x25: case M_C40x25: 1609 case M_B80x25: case M_C80x25: 1610 case M_ENH_B40x25: case M_ENH_C40x25: 1611 case M_ENH_B80x25: case M_ENH_C80x25: 1612 case M_EGAMONO80x25: 1613 1614setup_mode: 1615 vga_load_state(adp, ¶ms); 1616 break; 1617 1618 case M_VGA_MODEX: 1619 /* "unchain" the VGA mode */ 1620 params.regs[5-1+0x04] &= 0xf7; 1621 params.regs[5-1+0x04] |= 0x04; 1622 /* turn off doubleword mode */ 1623 params.regs[10+0x14] &= 0xbf; 1624 /* turn off word addressing */ 1625 params.regs[10+0x17] |= 0x40; 1626 /* set logical screen width */ 1627 params.regs[10+0x13] = 80; 1628 /* set 240 lines */ 1629 params.regs[10+0x11] = 0x2c; 1630 params.regs[10+0x06] = 0x0d; 1631 params.regs[10+0x07] = 0x3e; 1632 params.regs[10+0x10] = 0xea; 1633 params.regs[10+0x11] = 0xac; 1634 params.regs[10+0x12] = 0xdf; 1635 params.regs[10+0x15] = 0xe7; 1636 params.regs[10+0x16] = 0x06; 1637 /* set vertical sync polarity to reflect aspect ratio */ 1638 params.regs[9] = 0xe3; 1639 goto setup_grmode; 1640 1641 case M_BG320: case M_CG320: case M_BG640: 1642 case M_CG320_D: case M_CG640_E: 1643 case M_CG640x350: case M_ENH_CG640: 1644 case M_BG640x480: case M_CG640x480: case M_VGA_CG320: 1645 1646setup_grmode: 1647 vga_load_state(adp, ¶ms); 1648 break; 1649 1650 default: 1651 return EINVAL; 1652 } 1653 1654 adp->va_mode = mode; 1655 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1656 update_adapter_info(adp, &info); 1657 1658 /* move hardware cursor out of the way */ 1659 vidd_set_hw_cursor(adp, -1, -1); 1660 1661 return 0; 1662#else /* VGA_NO_MODE_CHANGE */ 1663 return ENODEV; 1664#endif /* VGA_NO_MODE_CHANGE */ 1665} 1666 1667#ifndef VGA_NO_FONT_LOADING 1668 1669static void 1670set_font_mode(video_adapter_t *adp, u_char *buf) 1671{ 1672 u_char *mp; 1673 int s; 1674 1675 s = splhigh(); 1676 1677 /* save register values */ 1678 if (adp->va_type == KD_VGA) { 1679 outb(TSIDX, 0x02); buf[0] = inb(TSREG); 1680 outb(TSIDX, 0x04); buf[1] = inb(TSREG); 1681 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG); 1682 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG); 1683 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG); 1684 inb(adp->va_crtc_addr + 6); 1685 outb(ATC, 0x10); buf[5] = inb(ATC + 1); 1686 } else /* if (adp->va_type == KD_EGA) */ { 1687 /* 1688 * EGA cannot be read; copy parameters from the mode parameter 1689 * table. 1690 */ 1691 mp = get_mode_param(adp->va_mode); 1692 buf[0] = mp[5 + 0x02 - 1]; 1693 buf[1] = mp[5 + 0x04 - 1]; 1694 buf[2] = mp[55 + 0x04]; 1695 buf[3] = mp[55 + 0x05]; 1696 buf[4] = mp[55 + 0x06]; 1697 buf[5] = mp[35 + 0x10]; 1698 } 1699 1700 /* setup vga for loading fonts */ 1701 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1702 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01); 1703 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1704 outb(ATC, 0x20); /* enable palette */ 1705 1706#ifdef VGA_SLOW_IOACCESS 1707#ifdef VGA_ALT_SEQACCESS 1708 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1709#endif 1710 outb(TSIDX, 0x02); outb(TSREG, 0x04); 1711 outb(TSIDX, 0x04); outb(TSREG, 0x07); 1712#ifdef VGA_ALT_SEQACCESS 1713 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1714#endif 1715 outb(GDCIDX, 0x04); outb(GDCREG, 0x02); 1716 outb(GDCIDX, 0x05); outb(GDCREG, 0x00); 1717 outb(GDCIDX, 0x06); outb(GDCREG, 0x04); 1718#else /* VGA_SLOW_IOACCESS */ 1719#ifdef VGA_ALT_SEQACCESS 1720 outw(TSIDX, 0x0100); 1721#endif 1722 outw(TSIDX, 0x0402); 1723 outw(TSIDX, 0x0704); 1724#ifdef VGA_ALT_SEQACCESS 1725 outw(TSIDX, 0x0300); 1726#endif 1727 outw(GDCIDX, 0x0204); 1728 outw(GDCIDX, 0x0005); 1729 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */ 1730#endif /* VGA_SLOW_IOACCESS */ 1731 1732 splx(s); 1733} 1734 1735static void 1736set_normal_mode(video_adapter_t *adp, u_char *buf) 1737{ 1738 int s; 1739 1740 s = splhigh(); 1741 1742 /* setup vga for normal operation mode again */ 1743 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1744 outb(ATC, 0x10); outb(ATC, buf[5]); 1745 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1746 outb(ATC, 0x20); /* enable palette */ 1747 1748#ifdef VGA_SLOW_IOACCESS 1749#ifdef VGA_ALT_SEQACCESS 1750 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1751#endif 1752 outb(TSIDX, 0x02); outb(TSREG, buf[0]); 1753 outb(TSIDX, 0x04); outb(TSREG, buf[1]); 1754#ifdef VGA_ALT_SEQACCESS 1755 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1756#endif 1757 outb(GDCIDX, 0x04); outb(GDCREG, buf[2]); 1758 outb(GDCIDX, 0x05); outb(GDCREG, buf[3]); 1759 if (adp->va_crtc_addr == MONO_CRTC) { 1760 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x08); 1761 } else { 1762 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x0c); 1763 } 1764#else /* VGA_SLOW_IOACCESS */ 1765#ifdef VGA_ALT_SEQACCESS 1766 outw(TSIDX, 0x0100); 1767#endif 1768 outw(TSIDX, 0x0002 | (buf[0] << 8)); 1769 outw(TSIDX, 0x0004 | (buf[1] << 8)); 1770#ifdef VGA_ALT_SEQACCESS 1771 outw(TSIDX, 0x0300); 1772#endif 1773 outw(GDCIDX, 0x0004 | (buf[2] << 8)); 1774 outw(GDCIDX, 0x0005 | (buf[3] << 8)); 1775 if (adp->va_crtc_addr == MONO_CRTC) 1776 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x08)<<8)); 1777 else 1778 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8)); 1779#endif /* VGA_SLOW_IOACCESS */ 1780 1781 splx(s); 1782} 1783 1784#endif /* VGA_NO_FONT_LOADING */ 1785 1786/* 1787 * save_font(): 1788 * Read the font data in the requested font page from the video adapter. 1789 * 1790 * EGA/VGA 1791 */ 1792static int 1793vga_save_font(video_adapter_t *adp, int page, int fontsize, int fontwidth, 1794 u_char *data, int ch, int count) 1795{ 1796#ifndef VGA_NO_FONT_LOADING 1797 u_char buf[PARAM_BUFSIZE]; 1798 vm_offset_t segment; 1799 int c; 1800#ifdef VGA_ALT_SEQACCESS 1801 int s; 1802 u_char val = 0; 1803#endif 1804 1805 prologue(adp, V_ADP_FONT, ENODEV); 1806 1807 if (fontsize < 14) { 1808 /* FONT_8 */ 1809 fontsize = 8; 1810 } else if (fontsize >= 32) { 1811 fontsize = 32; 1812 } else if (fontsize >= 16) { 1813 /* FONT_16 */ 1814 fontsize = 16; 1815 } else { 1816 /* FONT_14 */ 1817 fontsize = 14; 1818 } 1819 1820 if (page < 0 || page >= 8 || fontwidth != 8) 1821 return EINVAL; 1822 segment = FONT_BUF + 0x4000*page; 1823 if (page > 3) 1824 segment -= 0xe000; 1825 1826#ifdef VGA_ALT_SEQACCESS 1827 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1828 s = splhigh(); 1829 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1830 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1831 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1832 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1833 splx(s); 1834 } 1835#endif 1836 1837 set_font_mode(adp, buf); 1838 if (fontsize == 32) { 1839 bcopy_fromio((uintptr_t)segment + ch*32, data, fontsize*count); 1840 } else { 1841 for (c = ch; count > 0; ++c, --count) { 1842 bcopy_fromio((uintptr_t)segment + c*32, data, fontsize); 1843 data += fontsize; 1844 } 1845 } 1846 set_normal_mode(adp, buf); 1847 1848#ifdef VGA_ALT_SEQACCESS 1849 if (adp->va_type == KD_VGA) { 1850 s = splhigh(); 1851 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1852 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1853 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1854 splx(s); 1855 } 1856#endif 1857 1858 return 0; 1859#else /* VGA_NO_FONT_LOADING */ 1860 return ENODEV; 1861#endif /* VGA_NO_FONT_LOADING */ 1862} 1863 1864/* 1865 * load_font(): 1866 * Set the font data in the requested font page. 1867 * NOTE: it appears that some recent video adapters do not support 1868 * the font page other than 0... XXX 1869 * 1870 * EGA/VGA 1871 */ 1872static int 1873vga_load_font(video_adapter_t *adp, int page, int fontsize, int fontwidth, 1874 u_char *data, int ch, int count) 1875{ 1876#ifndef VGA_NO_FONT_LOADING 1877 u_char buf[PARAM_BUFSIZE]; 1878 vm_offset_t segment; 1879 int c; 1880#ifdef VGA_ALT_SEQACCESS 1881 int s; 1882 u_char val = 0; 1883#endif 1884 1885 prologue(adp, V_ADP_FONT, ENODEV); 1886 1887 if (fontsize < 14) { 1888 /* FONT_8 */ 1889 fontsize = 8; 1890 } else if (fontsize >= 32) { 1891 fontsize = 32; 1892 } else if (fontsize >= 16) { 1893 /* FONT_16 */ 1894 fontsize = 16; 1895 } else { 1896 /* FONT_14 */ 1897 fontsize = 14; 1898 } 1899 1900 if (page < 0 || page >= 8 || fontwidth != 8) 1901 return EINVAL; 1902 segment = FONT_BUF + 0x4000*page; 1903 if (page > 3) 1904 segment -= 0xe000; 1905 1906#ifdef VGA_ALT_SEQACCESS 1907 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1908 s = splhigh(); 1909 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1910 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1911 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1912 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1913 splx(s); 1914 } 1915#endif 1916 1917 set_font_mode(adp, buf); 1918 if (fontsize == 32) { 1919 bcopy_toio(data, (uintptr_t)segment + ch*32, fontsize*count); 1920 } else { 1921 for (c = ch; count > 0; ++c, --count) { 1922 bcopy_toio(data, (uintptr_t)segment + c*32, fontsize); 1923 data += fontsize; 1924 } 1925 } 1926 set_normal_mode(adp, buf); 1927 1928#ifdef VGA_ALT_SEQACCESS 1929 if (adp->va_type == KD_VGA) { 1930 s = splhigh(); 1931 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1932 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1933 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1934 splx(s); 1935 } 1936#endif 1937 1938 return 0; 1939#else /* VGA_NO_FONT_LOADING */ 1940 return ENODEV; 1941#endif /* VGA_NO_FONT_LOADING */ 1942} 1943 1944/* 1945 * show_font(): 1946 * Activate the requested font page. 1947 * NOTE: it appears that some recent video adapters do not support 1948 * the font page other than 0... XXX 1949 * 1950 * EGA/VGA 1951 */ 1952static int 1953vga_show_font(video_adapter_t *adp, int page) 1954{ 1955#ifndef VGA_NO_FONT_LOADING 1956 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f }; 1957 int s; 1958 1959 prologue(adp, V_ADP_FONT, ENODEV); 1960 if (page < 0 || page >= 8) 1961 return EINVAL; 1962 1963 s = splhigh(); 1964 outb(TSIDX, 0x03); outb(TSREG, cg[page]); 1965 splx(s); 1966 1967 return 0; 1968#else /* VGA_NO_FONT_LOADING */ 1969 return ENODEV; 1970#endif /* VGA_NO_FONT_LOADING */ 1971} 1972 1973/* 1974 * save_palette(): 1975 * Read DAC values. The values have expressed in 8 bits. 1976 * 1977 * VGA 1978 */ 1979static int 1980vga_save_palette(video_adapter_t *adp, u_char *palette) 1981{ 1982 int bits; 1983 int i; 1984 1985 prologue(adp, V_ADP_PALETTE, ENODEV); 1986 1987 /* 1988 * We store 8 bit values in the palette buffer, while the standard 1989 * VGA has 6 bit DAC . 1990 */ 1991 outb(PALRADR, 0x00); 1992 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; 1993 for (i = 0; i < 256*3; ++i) 1994 palette[i] = inb(PALDATA) << bits; 1995 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1996 return 0; 1997} 1998 1999static int 2000vga_save_palette2(video_adapter_t *adp, int base, int count, 2001 u_char *r, u_char *g, u_char *b) 2002{ 2003 int bits; 2004 int i; 2005 2006 prologue(adp, V_ADP_PALETTE, ENODEV); 2007 2008 outb(PALRADR, base); 2009 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; 2010 for (i = 0; i < count; ++i) { 2011 r[i] = inb(PALDATA) << bits; 2012 g[i] = inb(PALDATA) << bits; 2013 b[i] = inb(PALDATA) << bits; 2014 } 2015 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2016 return 0; 2017} 2018 2019/* 2020 * load_palette(): 2021 * Set DAC values. 2022 * 2023 * VGA 2024 */ 2025static int 2026vga_load_palette(video_adapter_t *adp, u_char *palette) 2027{ 2028 int bits; 2029 int i; 2030 2031 prologue(adp, V_ADP_PALETTE, ENODEV); 2032 2033 outb(PIXMASK, 0xff); /* no pixelmask */ 2034 outb(PALWADR, 0x00); 2035 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; 2036 for (i = 0; i < 256*3; ++i) 2037 outb(PALDATA, palette[i] >> bits); 2038 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2039 outb(ATC, 0x20); /* enable palette */ 2040 return 0; 2041} 2042 2043static int 2044vga_load_palette2(video_adapter_t *adp, int base, int count, 2045 u_char *r, u_char *g, u_char *b) 2046{ 2047 int bits; 2048 int i; 2049 2050 prologue(adp, V_ADP_PALETTE, ENODEV); 2051 2052 outb(PIXMASK, 0xff); /* no pixelmask */ 2053 outb(PALWADR, base); 2054 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; 2055 for (i = 0; i < count; ++i) { 2056 outb(PALDATA, r[i] >> bits); 2057 outb(PALDATA, g[i] >> bits); 2058 outb(PALDATA, b[i] >> bits); 2059 } 2060 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2061 outb(ATC, 0x20); /* enable palette */ 2062 return 0; 2063} 2064 2065/* 2066 * set_border(): 2067 * Change the border color. 2068 * 2069 * CGA/EGA/VGA 2070 */ 2071static int 2072vga_set_border(video_adapter_t *adp, int color) 2073{ 2074 prologue(adp, V_ADP_BORDER, ENODEV); 2075 2076 switch (adp->va_type) { 2077 case KD_EGA: 2078 case KD_VGA: 2079 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 2080 outb(ATC, 0x31); outb(ATC, color & 0xff); 2081 break; 2082 case KD_CGA: 2083 outb(adp->va_crtc_addr + 5, color & 0x0f); /* color select register */ 2084 break; 2085 case KD_MONO: 2086 case KD_HERCULES: 2087 default: 2088 break; 2089 } 2090 return 0; 2091} 2092 2093/* 2094 * save_state(): 2095 * Read video register values. 2096 * NOTE: this function only reads the standard EGA/VGA registers. 2097 * any extra/extended registers of SVGA adapters are not saved. 2098 * 2099 * VGA 2100 */ 2101static int 2102vga_save_state(video_adapter_t *adp, void *p, size_t size) 2103{ 2104 video_info_t info; 2105 u_char *buf; 2106 int crtc_addr; 2107 int i, j; 2108 int s; 2109 2110 if (size == 0) { 2111 /* return the required buffer size */ 2112 prologue(adp, V_ADP_STATESAVE, 0); 2113 return sizeof(adp_state_t); 2114 } else { 2115 prologue(adp, V_ADP_STATESAVE, ENODEV); 2116 if (size < sizeof(adp_state_t)) 2117 return EINVAL; 2118 } 2119 2120 ((adp_state_t *)p)->sig = V_STATE_SIG; 2121 buf = ((adp_state_t *)p)->regs; 2122 bzero(buf, V_MODE_PARAM_SIZE); 2123 crtc_addr = adp->va_crtc_addr; 2124 2125 s = splhigh(); 2126 2127 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2128 for (i = 0, j = 5; i < 4; i++) { 2129 outb(TSIDX, i + 1); 2130 buf[j++] = inb(TSREG); 2131 } 2132 buf[9] = inb(MISC + 10); /* dot-clock */ 2133 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2134 2135 for (i = 0, j = 10; i < 25; i++) { /* crtc */ 2136 outb(crtc_addr, i); 2137 buf[j++] = inb(crtc_addr + 1); 2138 } 2139 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */ 2140 inb(crtc_addr + 6); /* reset flip-flop */ 2141 outb(ATC, i); 2142 buf[j++] = inb(ATC + 1); 2143 } 2144 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */ 2145 outb(GDCIDX, i); 2146 buf[j++] = inb(GDCREG); 2147 } 2148 inb(crtc_addr + 6); /* reset flip-flop */ 2149 outb(ATC, 0x20); /* enable palette */ 2150 2151 splx(s); 2152 2153#if 1 2154 if (vga_get_info(adp, adp->va_mode, &info) == 0) { 2155 if (info.vi_flags & V_INFO_GRAPHICS) { 2156 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */ 2157 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */ 2158 } else { 2159 buf[0] = info.vi_width; /* COLS */ 2160 buf[1] = info.vi_height - 1; /* ROWS */ 2161 } 2162 buf[2] = info.vi_cheight; /* POINTS */ 2163 } 2164#else 2165 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */ 2166 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */ 2167 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */ 2168 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c)); 2169 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d)); 2170#endif 2171 2172 return 0; 2173} 2174 2175/* 2176 * load_state(): 2177 * Set video registers at once. 2178 * NOTE: this function only updates the standard EGA/VGA registers. 2179 * any extra/extended registers of SVGA adapters are not changed. 2180 * 2181 * EGA/VGA 2182 */ 2183static int 2184vga_load_state(video_adapter_t *adp, void *p) 2185{ 2186 u_char *buf; 2187 int crtc_addr; 2188 int s; 2189 int i; 2190 2191 prologue(adp, V_ADP_STATELOAD, ENODEV); 2192 if (((adp_state_t *)p)->sig != V_STATE_SIG) 2193 return EINVAL; 2194 2195 buf = ((adp_state_t *)p)->regs; 2196 crtc_addr = adp->va_crtc_addr; 2197 2198#if VGA_DEBUG > 1 2199 dump_buffer(buf, V_MODE_PARAM_SIZE); 2200#endif 2201 2202 s = splhigh(); 2203 2204 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2205 for (i = 0; i < 4; ++i) { /* program sequencer */ 2206 outb(TSIDX, i + 1); 2207 outb(TSREG, buf[i + 5]); 2208 } 2209 outb(MISC, buf[9]); /* set dot-clock */ 2210 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2211 outb(crtc_addr, 0x11); 2212 outb(crtc_addr + 1, inb(crtc_addr + 1) & 0x7F); 2213 for (i = 0; i < 25; ++i) { /* program crtc */ 2214 outb(crtc_addr, i); 2215 outb(crtc_addr + 1, buf[i + 10]); 2216 } 2217 inb(crtc_addr+6); /* reset flip-flop */ 2218 for (i = 0; i < 20; ++i) { /* program attribute ctrl */ 2219 outb(ATC, i); 2220 outb(ATC, buf[i + 35]); 2221 } 2222 for (i = 0; i < 9; ++i) { /* program graph data ctrl */ 2223 outb(GDCIDX, i); 2224 outb(GDCREG, buf[i + 55]); 2225 } 2226 inb(crtc_addr + 6); /* reset flip-flop */ 2227 outb(ATC, 0x20); /* enable palette */ 2228 2229#ifdef notyet /* a temporary workaround for kernel panic, XXX */ 2230#ifndef VGA_NO_BIOS 2231 if (adp->va_unit == V_ADP_PRIMARY) { 2232 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */ 2233 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */ 2234 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */ 2235#if 0 2236 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]); 2237 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]); 2238#endif 2239 } 2240#endif /* VGA_NO_BIOS */ 2241#endif /* notyet */ 2242 2243 splx(s); 2244 return 0; 2245} 2246 2247/* 2248 * set_origin(): 2249 * Change the origin (window mapping) of the banked frame buffer. 2250 */ 2251static int 2252vga_set_origin(video_adapter_t *adp, off_t offset) 2253{ 2254 /* 2255 * The standard video modes do not require window mapping; 2256 * always return error. 2257 */ 2258 return ENODEV; 2259} 2260 2261/* 2262 * read_hw_cursor(): 2263 * Read the position of the hardware text cursor. 2264 * 2265 * all adapters 2266 */ 2267static int 2268vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 2269{ 2270 u_int16_t off; 2271 int s; 2272 2273 if (!vga_init_done) 2274 return ENXIO; 2275 2276 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2277 return ENODEV; 2278 2279 s = spltty(); 2280 outb(adp->va_crtc_addr, 14); 2281 off = inb(adp->va_crtc_addr + 1); 2282 outb(adp->va_crtc_addr, 15); 2283 off = (off << 8) | inb(adp->va_crtc_addr + 1); 2284 splx(s); 2285 2286 *row = off / adp->va_info.vi_width; 2287 *col = off % adp->va_info.vi_width; 2288 2289 return 0; 2290} 2291 2292/* 2293 * set_hw_cursor(): 2294 * Move the hardware text cursor. If col and row are both -1, 2295 * the cursor won't be shown. 2296 * 2297 * all adapters 2298 */ 2299static int 2300vga_set_hw_cursor(video_adapter_t *adp, int col, int row) 2301{ 2302 u_int16_t off; 2303 int s; 2304 2305 if (!vga_init_done) 2306 return ENXIO; 2307 2308 if ((col == -1) && (row == -1)) { 2309 off = -1; 2310 } else { 2311 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2312 return ENODEV; 2313 off = row*adp->va_info.vi_width + col; 2314 } 2315 2316 s = spltty(); 2317 outb(adp->va_crtc_addr, 14); 2318 outb(adp->va_crtc_addr + 1, off >> 8); 2319 outb(adp->va_crtc_addr, 15); 2320 outb(adp->va_crtc_addr + 1, off & 0x00ff); 2321 splx(s); 2322 2323 return 0; 2324} 2325 2326/* 2327 * set_hw_cursor_shape(): 2328 * Change the shape of the hardware text cursor. If the height is 2329 * zero or negative, the cursor won't be shown. 2330 * 2331 * all adapters 2332 */ 2333static int 2334vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 2335 int celsize, int blink) 2336{ 2337 int s; 2338 2339 if (!vga_init_done) 2340 return ENXIO; 2341 2342 s = spltty(); 2343 switch (adp->va_type) { 2344 case KD_VGA: 2345 case KD_CGA: 2346 case KD_MONO: 2347 case KD_HERCULES: 2348 default: 2349 if (height <= 0) { 2350 /* make the cursor invisible */ 2351 outb(adp->va_crtc_addr, 10); 2352 outb(adp->va_crtc_addr + 1, 32); 2353 outb(adp->va_crtc_addr, 11); 2354 outb(adp->va_crtc_addr + 1, 0); 2355 } else { 2356 outb(adp->va_crtc_addr, 10); 2357 outb(adp->va_crtc_addr + 1, celsize - base - height); 2358 outb(adp->va_crtc_addr, 11); 2359 outb(adp->va_crtc_addr + 1, celsize - base - 1); 2360 } 2361 break; 2362 case KD_EGA: 2363 if (height <= 0) { 2364 /* make the cursor invisible */ 2365 outb(adp->va_crtc_addr, 10); 2366 outb(adp->va_crtc_addr + 1, celsize); 2367 outb(adp->va_crtc_addr, 11); 2368 outb(adp->va_crtc_addr + 1, 0); 2369 } else { 2370 outb(adp->va_crtc_addr, 10); 2371 outb(adp->va_crtc_addr + 1, celsize - base - height); 2372 outb(adp->va_crtc_addr, 11); 2373 outb(adp->va_crtc_addr + 1, celsize - base); 2374 } 2375 break; 2376 } 2377 splx(s); 2378 2379 return 0; 2380} 2381 2382/* 2383 * blank_display() 2384 * Put the display in power save/power off mode. 2385 * 2386 * all adapters 2387 */ 2388static int 2389vga_blank_display(video_adapter_t *adp, int mode) 2390{ 2391 u_char val; 2392 int s; 2393 2394 s = splhigh(); 2395 switch (adp->va_type) { 2396 case KD_VGA: 2397 switch (mode) { 2398 case V_DISPLAY_SUSPEND: 2399 case V_DISPLAY_STAND_BY: 2400 outb(TSIDX, 0x01); 2401 val = inb(TSREG); 2402 outb(TSIDX, 0x01); 2403 outb(TSREG, val | 0x20); 2404 outb(adp->va_crtc_addr, 0x17); 2405 val = inb(adp->va_crtc_addr + 1); 2406 outb(adp->va_crtc_addr + 1, val & ~0x80); 2407 break; 2408 case V_DISPLAY_BLANK: 2409 outb(TSIDX, 0x01); 2410 val = inb(TSREG); 2411 outb(TSIDX, 0x01); 2412 outb(TSREG, val | 0x20); 2413 break; 2414 case V_DISPLAY_ON: 2415 outb(TSIDX, 0x01); 2416 val = inb(TSREG); 2417 outb(TSIDX, 0x01); 2418 outb(TSREG, val & 0xDF); 2419 outb(adp->va_crtc_addr, 0x17); 2420 val = inb(adp->va_crtc_addr + 1); 2421 outb(adp->va_crtc_addr + 1, val | 0x80); 2422 break; 2423 } 2424 break; 2425 2426 case KD_EGA: 2427 /* no support yet */ 2428 splx(s); 2429 return ENODEV; 2430 2431 case KD_CGA: 2432 switch (mode) { 2433 case V_DISPLAY_SUSPEND: 2434 case V_DISPLAY_STAND_BY: 2435 case V_DISPLAY_BLANK: 2436 outb(adp->va_crtc_addr + 4, 0x25); 2437 break; 2438 case V_DISPLAY_ON: 2439 outb(adp->va_crtc_addr + 4, 0x2d); 2440 break; 2441 } 2442 break; 2443 2444 case KD_MONO: 2445 case KD_HERCULES: 2446 switch (mode) { 2447 case V_DISPLAY_SUSPEND: 2448 case V_DISPLAY_STAND_BY: 2449 case V_DISPLAY_BLANK: 2450 outb(adp->va_crtc_addr + 4, 0x21); 2451 break; 2452 case V_DISPLAY_ON: 2453 outb(adp->va_crtc_addr + 4, 0x29); 2454 break; 2455 } 2456 break; 2457 default: 2458 break; 2459 } 2460 splx(s); 2461 2462 return 0; 2463} 2464 2465/* 2466 * mmap(): 2467 * Mmap frame buffer. 2468 * 2469 * all adapters 2470 */ 2471static int 2472vga_mmap_buf(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr, 2473 int prot, vm_memattr_t *memattr) 2474{ 2475 if (adp->va_info.vi_flags & V_INFO_LINEAR) 2476 return -1; 2477 2478#if VGA_DEBUG > 0 2479 printf("vga_mmap_buf(): window:0x%jx, offset:0x%jx\n", 2480 (uintmax_t)adp->va_info.vi_window, (uintmax_t)offset); 2481#endif 2482 2483 /* XXX: is this correct? */ 2484 if (offset > adp->va_window_size - PAGE_SIZE) 2485 return -1; 2486 2487 *paddr = adp->va_info.vi_window + offset; 2488 return 0; 2489} 2490 2491#ifndef VGA_NO_MODE_CHANGE 2492 2493static void 2494planar_fill(video_adapter_t *adp, int val) 2495{ 2496 int length; 2497 int at; /* position in the frame buffer */ 2498 int l; 2499 2500 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2501 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2502 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2503 outw(GDCIDX, 0xff08); /* bit mask */ 2504 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2505 at = 0; 2506 length = adp->va_line_width*adp->va_info.vi_height; 2507 while (length > 0) { 2508 l = imin(length, adp->va_window_size); 2509 vidd_set_win_org(adp, at); 2510 bzero_io(adp->va_window, l); 2511 length -= l; 2512 at += l; 2513 } 2514 outw(GDCIDX, 0x0000); /* set/reset */ 2515 outw(GDCIDX, 0x0001); /* set/reset enable */ 2516} 2517 2518static void 2519packed_fill(video_adapter_t *adp, int val) 2520{ 2521 int length; 2522 int at; /* position in the frame buffer */ 2523 int l; 2524 2525 at = 0; 2526 length = adp->va_line_width*adp->va_info.vi_height; 2527 while (length > 0) { 2528 l = imin(length, adp->va_window_size); 2529 vidd_set_win_org(adp, at); 2530 fill_io(val, adp->va_window, l); 2531 length -= l; 2532 at += l; 2533 } 2534} 2535 2536static void 2537direct_fill(video_adapter_t *adp, int val) 2538{ 2539 int length; 2540 int at; /* position in the frame buffer */ 2541 int l; 2542 2543 at = 0; 2544 length = adp->va_line_width*adp->va_info.vi_height; 2545 while (length > 0) { 2546 l = imin(length, adp->va_window_size); 2547 vidd_set_win_org(adp, at); 2548 switch (adp->va_info.vi_pixel_size) { 2549 case sizeof(u_int16_t): 2550 fillw_io(val, adp->va_window, l/sizeof(u_int16_t)); 2551 break; 2552 case 3: 2553 /* FIXME */ 2554 break; 2555 case sizeof(u_int32_t): 2556 filll_io(val, adp->va_window, l/sizeof(u_int32_t)); 2557 break; 2558 } 2559 length -= l; 2560 at += l; 2561 } 2562} 2563 2564static int 2565vga_clear(video_adapter_t *adp) 2566{ 2567 switch (adp->va_info.vi_mem_model) { 2568 case V_INFO_MM_TEXT: 2569 /* do nothing? XXX */ 2570 break; 2571 case V_INFO_MM_PLANAR: 2572 planar_fill(adp, 0); 2573 break; 2574 case V_INFO_MM_PACKED: 2575 packed_fill(adp, 0); 2576 break; 2577 case V_INFO_MM_DIRECT: 2578 direct_fill(adp, 0); 2579 break; 2580 } 2581 return 0; 2582} 2583 2584#ifdef notyet 2585static void 2586planar_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2587{ 2588 int banksize; 2589 int bank; 2590 int pos; 2591 int offset; /* offset within window */ 2592 int bx; 2593 int l; 2594 2595 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2596 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2597 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2598 outw(GDCIDX, 0xff08); /* bit mask */ 2599 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2600 2601 banksize = adp->va_window_size; 2602 bank = -1; 2603 while (cy > 0) { 2604 pos = adp->va_line_width*y + x/8; 2605 if (bank != pos/banksize) { 2606 vidd_set_win_org(adp, pos); 2607 bank = pos/banksize; 2608 } 2609 offset = pos%banksize; 2610 bx = (x + cx)/8 - x/8; 2611 if (x % 8) { 2612 outw(GDCIDX, ((0xff00 >> (x % 8)) & 0xff00) | 0x08); 2613 writeb(adp->va_window + offset, 0); 2614 ++offset; 2615 --bx; 2616 if (offset >= banksize) { 2617 offset = 0; 2618 ++bank; /* next bank */ 2619 vidd_set_win_org(adp, bank*banksize); 2620 } 2621 outw(GDCIDX, 0xff08); /* bit mask */ 2622 } 2623 while (bx > 0) { 2624 l = imin(bx, banksize); 2625 bzero_io(adp->va_window + offset, l); 2626 offset += l; 2627 bx -= l; 2628 if (offset >= banksize) { 2629 offset = 0; 2630 ++bank; /* next bank */ 2631 vidd_set_win_org(adp, bank*banksize); 2632 } 2633 } 2634 if ((x + cx) % 8) { 2635 outw(GDCIDX, (~(0xff00 >> ((x + cx) % 8)) & 0xff00) | 0x08); 2636 writeb(adp->va_window + offset, 0); 2637 ++offset; 2638 if (offset >= banksize) { 2639 offset = 0; 2640 ++bank; /* next bank */ 2641 vidd_set_win_org(adp, bank*banksize); 2642 } 2643 outw(GDCIDX, 0xff08); /* bit mask */ 2644 } 2645 ++y; 2646 --cy; 2647 } 2648 2649 outw(GDCIDX, 0xff08); /* bit mask */ 2650 outw(GDCIDX, 0x0000); /* set/reset */ 2651 outw(GDCIDX, 0x0001); /* set/reset enable */ 2652} 2653 2654static void 2655packed_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2656{ 2657 int banksize; 2658 int bank; 2659 int pos; 2660 int offset; /* offset within window */ 2661 int end; 2662 2663 banksize = adp->va_window_size; 2664 bank = -1; 2665 cx *= adp->va_info.vi_pixel_size; 2666 while (cy > 0) { 2667 pos = adp->va_line_width*y + x*adp->va_info.vi_pixel_size; 2668 if (bank != pos/banksize) { 2669 vidd_set_win_org(adp, pos); 2670 bank = pos/banksize; 2671 } 2672 offset = pos%banksize; 2673 end = imin(offset + cx, banksize); 2674 fill_io(val, adp->va_window + offset, 2675 (end - offset)/adp->va_info.vi_pixel_size); 2676 /* the line may cross the window boundary */ 2677 if (offset + cx > banksize) { 2678 ++bank; /* next bank */ 2679 vidd_set_win_org(adp, bank*banksize); 2680 end = offset + cx - banksize; 2681 fill_io(val, adp->va_window, end/adp->va_info.vi_pixel_size); 2682 } 2683 ++y; 2684 --cy; 2685 } 2686} 2687 2688static void 2689direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2690{ 2691 int banksize; 2692 int bank; 2693 int pos; 2694 int offset; /* offset within window */ 2695 int end; 2696 2697 /* 2698 * XXX: the function assumes that banksize is a muliple of 2699 * sizeof(u_int16_t). 2700 */ 2701 banksize = adp->va_window_size; 2702 bank = -1; 2703 cx *= sizeof(u_int16_t); 2704 while (cy > 0) { 2705 pos = adp->va_line_width*y + x*sizeof(u_int16_t); 2706 if (bank != pos/banksize) { 2707 vidd_set_win_org(adp, pos); 2708 bank = pos/banksize; 2709 } 2710 offset = pos%banksize; 2711 end = imin(offset + cx, banksize); 2712 fillw_io(val, adp->va_window + offset, 2713 (end - offset)/sizeof(u_int16_t)); 2714 /* the line may cross the window boundary */ 2715 if (offset + cx > banksize) { 2716 ++bank; /* next bank */ 2717 vidd_set_win_org(adp, bank*banksize); 2718 end = offset + cx - banksize; 2719 fillw_io(val, adp->va_window, end/sizeof(u_int16_t)); 2720 } 2721 ++y; 2722 --cy; 2723 } 2724} 2725 2726static void 2727direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2728{ 2729 int banksize; 2730 int bank; 2731 int pos; 2732 int offset; /* offset within window */ 2733 int end; 2734 int i; 2735 int j; 2736 u_int8_t b[3]; 2737 2738 b[0] = val & 0x0000ff; 2739 b[1] = (val >> 8) & 0x0000ff; 2740 b[2] = (val >> 16) & 0x0000ff; 2741 banksize = adp->va_window_size; 2742 bank = -1; 2743 cx *= 3; 2744 while (cy > 0) { 2745 pos = adp->va_line_width*y + x*3; 2746 if (bank != pos/banksize) { 2747 vidd_set_win_org(adp, pos); 2748 bank = pos/banksize; 2749 } 2750 offset = pos%banksize; 2751 end = imin(offset + cx, banksize); 2752 for (i = 0, j = offset; j < end; i = (++i)%3, ++j) { 2753 writeb(adp->va_window + j, b[i]); 2754 } 2755 /* the line may cross the window boundary */ 2756 if (offset + cx >= banksize) { 2757 ++bank; /* next bank */ 2758 vidd_set_win_org(adp, bank*banksize); 2759 j = 0; 2760 end = offset + cx - banksize; 2761 for (; j < end; i = (++i)%3, ++j) { 2762 writeb(adp->va_window + j, b[i]); 2763 } 2764 } 2765 ++y; 2766 --cy; 2767 } 2768} 2769 2770static void 2771direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2772{ 2773 int banksize; 2774 int bank; 2775 int pos; 2776 int offset; /* offset within window */ 2777 int end; 2778 2779 /* 2780 * XXX: the function assumes that banksize is a muliple of 2781 * sizeof(u_int32_t). 2782 */ 2783 banksize = adp->va_window_size; 2784 bank = -1; 2785 cx *= sizeof(u_int32_t); 2786 while (cy > 0) { 2787 pos = adp->va_line_width*y + x*sizeof(u_int32_t); 2788 if (bank != pos/banksize) { 2789 vidd_set_win_org(adp, pos); 2790 bank = pos/banksize; 2791 } 2792 offset = pos%banksize; 2793 end = imin(offset + cx, banksize); 2794 filll_io(val, adp->va_window + offset, 2795 (end - offset)/sizeof(u_int32_t)); 2796 /* the line may cross the window boundary */ 2797 if (offset + cx > banksize) { 2798 ++bank; /* next bank */ 2799 vidd_set_win_org(adp, bank*banksize); 2800 end = offset + cx - banksize; 2801 filll_io(val, adp->va_window, end/sizeof(u_int32_t)); 2802 } 2803 ++y; 2804 --cy; 2805 } 2806} 2807 2808static int 2809vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2810{ 2811 switch (adp->va_info.vi_mem_model) { 2812 case V_INFO_MM_TEXT: 2813 /* do nothing? XXX */ 2814 break; 2815 case V_INFO_MM_PLANAR: 2816 planar_fill_rect(adp, val, x, y, cx, cy); 2817 break; 2818 case V_INFO_MM_PACKED: 2819 packed_fill_rect(adp, val, x, y, cx, cy); 2820 break; 2821 case V_INFO_MM_DIRECT: 2822 switch (adp->va_info.vi_pixel_size) { 2823 case sizeof(u_int16_t): 2824 direct_fill_rect16(adp, val, x, y, cx, cy); 2825 break; 2826 case 3: 2827 direct_fill_rect24(adp, val, x, y, cx, cy); 2828 break; 2829 case sizeof(u_int32_t): 2830 direct_fill_rect32(adp, val, x, y, cx, cy); 2831 break; 2832 } 2833 break; 2834 } 2835 return 0; 2836} 2837#else /* !notyet */ 2838static int 2839vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2840{ 2841 return ENODEV; 2842} 2843#endif /* notyet */ 2844 2845static int 2846vga_bitblt(video_adapter_t *adp,...) 2847{ 2848 /* FIXME */ 2849 return ENODEV; 2850} 2851 2852#endif /* !VGA_NO_MODE_CHANGE */ 2853 2854static int 2855get_palette(video_adapter_t *adp, int base, int count, 2856 u_char *red, u_char *green, u_char *blue, u_char *trans) 2857{ 2858 u_char *r; 2859 u_char *g; 2860 u_char *b; 2861 2862 if (count < 0 || base < 0 || count > 256 || base > 256 || 2863 base + count > 256) 2864 return EINVAL; 2865 2866 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2867 g = r + count; 2868 b = g + count; 2869 if (vga_save_palette2(adp, base, count, r, g, b)) { 2870 free(r, M_DEVBUF); 2871 return ENODEV; 2872 } 2873 copyout(r, red, count); 2874 copyout(g, green, count); 2875 copyout(b, blue, count); 2876 if (trans != NULL) { 2877 bzero(r, count); 2878 copyout(r, trans, count); 2879 } 2880 free(r, M_DEVBUF); 2881 2882 return 0; 2883} 2884 2885static int 2886set_palette(video_adapter_t *adp, int base, int count, 2887 u_char *red, u_char *green, u_char *blue, u_char *trans) 2888{ 2889 u_char *r; 2890 u_char *g; 2891 u_char *b; 2892 int err; 2893 2894 if (count < 0 || base < 0 || count > 256 || base > 256 || 2895 base + count > 256) 2896 return EINVAL; 2897 2898 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2899 g = r + count; 2900 b = g + count; 2901 err = copyin(red, r, count); 2902 if (!err) 2903 err = copyin(green, g, count); 2904 if (!err) 2905 err = copyin(blue, b, count); 2906 if (!err) 2907 err = vga_load_palette2(adp, base, count, r, g, b); 2908 free(r, M_DEVBUF); 2909 2910 return (err ? ENODEV : 0); 2911} 2912 2913static int 2914vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 2915{ 2916 switch (cmd) { 2917 case FBIO_GETWINORG: /* get frame buffer window origin */ 2918 *(u_int *)arg = 0; 2919 return 0; 2920 2921 case FBIO_SETWINORG: /* set frame buffer window origin */ 2922 return ENODEV; 2923 2924 case FBIO_SETDISPSTART: /* set display start address */ 2925 return (set_display_start(adp, 2926 ((video_display_start_t *)arg)->x, 2927 ((video_display_start_t *)arg)->y) 2928 ? ENODEV : 0); 2929 2930 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */ 2931 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0); 2932 2933 case FBIO_GETPALETTE: /* get color palette */ 2934 return get_palette(adp, ((video_color_palette_t *)arg)->index, 2935 ((video_color_palette_t *)arg)->count, 2936 ((video_color_palette_t *)arg)->red, 2937 ((video_color_palette_t *)arg)->green, 2938 ((video_color_palette_t *)arg)->blue, 2939 ((video_color_palette_t *)arg)->transparent); 2940 2941 case FBIO_SETPALETTE: /* set color palette */ 2942 return set_palette(adp, ((video_color_palette_t *)arg)->index, 2943 ((video_color_palette_t *)arg)->count, 2944 ((video_color_palette_t *)arg)->red, 2945 ((video_color_palette_t *)arg)->green, 2946 ((video_color_palette_t *)arg)->blue, 2947 ((video_color_palette_t *)arg)->transparent); 2948 2949 case FBIOGTYPE: /* get frame buffer type info. */ 2950 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type); 2951 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height; 2952 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width; 2953 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth; 2954 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8)) 2955 ((struct fbtype *)arg)->fb_cmsize = 0; 2956 else 2957 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth; 2958 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size; 2959 return 0; 2960 2961 case FBIOGETCMAP: /* get color palette */ 2962 return get_palette(adp, ((struct fbcmap *)arg)->index, 2963 ((struct fbcmap *)arg)->count, 2964 ((struct fbcmap *)arg)->red, 2965 ((struct fbcmap *)arg)->green, 2966 ((struct fbcmap *)arg)->blue, NULL); 2967 2968 case FBIOPUTCMAP: /* set color palette */ 2969 return set_palette(adp, ((struct fbcmap *)arg)->index, 2970 ((struct fbcmap *)arg)->count, 2971 ((struct fbcmap *)arg)->red, 2972 ((struct fbcmap *)arg)->green, 2973 ((struct fbcmap *)arg)->blue, NULL); 2974 2975 default: 2976 return fb_commonioctl(adp, cmd, arg); 2977 } 2978} 2979 2980static void 2981dump_buffer(u_char *buf, size_t len) 2982{ 2983 int i; 2984 2985 for(i = 0; i < len;) { 2986 printf("%02x ", buf[i]); 2987 if ((++i % 16) == 0) 2988 printf("\n"); 2989 } 2990} 2991 2992/* 2993 * diag(): 2994 * Print some information about the video adapter and video modes, 2995 * with requested level of details. 2996 * 2997 * all adapters 2998 */ 2999static int 3000vga_diag(video_adapter_t *adp, int level) 3001{ 3002 u_char *mp; 3003#if FB_DEBUG > 1 3004 video_info_t info; 3005 int i; 3006#endif 3007 3008 if (!vga_init_done) 3009 return ENXIO; 3010 3011#if FB_DEBUG > 1 3012#ifndef VGA_NO_BIOS 3013 printf("vga: RTC equip. code:0x%02x, DCC code:0x%02x\n", 3014 rtcin(RTC_EQUIPMENT), readb(BIOS_PADDRTOVADDR(0x488))); 3015 printf("vga: CRTC:0x%x, video option:0x%02x, ", 3016 readw(BIOS_PADDRTOVADDR(0x463)), 3017 readb(BIOS_PADDRTOVADDR(0x487))); 3018 printf("rows:%d, cols:%d, font height:%d\n", 3019 readb(BIOS_PADDRTOVADDR(0x44a)), 3020 readb(BIOS_PADDRTOVADDR(0x484)) + 1, 3021 readb(BIOS_PADDRTOVADDR(0x485))); 3022#endif /* VGA_NO_BIOS */ 3023#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 3024 printf("vga: param table EGA/VGA:%p", video_mode_ptr); 3025 printf(", CGA/MDA:%p\n", video_mode_ptr2); 3026 printf("vga: rows_offset:%d\n", rows_offset); 3027#endif 3028#endif /* FB_DEBUG > 1 */ 3029 3030 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level); 3031 3032#if FB_DEBUG > 1 3033 if (adp->va_flags & V_ADP_MODECHANGE) { 3034 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 3035 if (bios_vmode[i].vi_mode == NA) 3036 continue; 3037 if (get_mode_param(bios_vmode[i].vi_mode) == NULL) 3038 continue; 3039 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level); 3040 } 3041 } else { 3042 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */ 3043 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level); 3044 } 3045#endif /* FB_DEBUG > 1 */ 3046 3047 if ((adp->va_type != KD_EGA) && (adp->va_type != KD_VGA)) 3048 return 0; 3049#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 3050 if (video_mode_ptr == NULL) 3051 printf("vga%d: %s: WARNING: video mode switching is not " 3052 "fully supported on this adapter\n", 3053 adp->va_unit, adp->va_name); 3054#endif 3055 if (level <= 0) 3056 return 0; 3057 3058 if (adp->va_type == KD_VGA) { 3059 printf("VGA parameters upon power-up\n"); 3060 dump_buffer(adpstate.regs, sizeof(adpstate.regs)); 3061 printf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode); 3062 dump_buffer(adpstate2.regs, sizeof(adpstate2.regs)); 3063 } 3064 3065 mp = get_mode_param(adp->va_initial_mode); 3066 if (mp == NULL) /* this shouldn't be happening */ 3067 return 0; 3068 printf("EGA/VGA parameters to be used for mode %d\n", adp->va_initial_mode); 3069 dump_buffer(mp, V_MODE_PARAM_SIZE); 3070 3071 return 0; 3072} 3073