vga.c revision 330897
1/*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 5 * Copyright (c) 1992-1998 S��ren Schmidt 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer as 13 * the first lines of this file unmodified. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 */ 32 33#include <sys/cdefs.h> 34__FBSDID("$FreeBSD: stable/11/sys/dev/fb/vga.c 330897 2018-03-14 03:19:51Z eadler $"); 35 36#include "opt_vga.h" 37#include "opt_fb.h" 38#ifndef FB_DEBUG 39#define FB_DEBUG 0 40#endif 41#include "opt_syscons.h" /* should be removed in the future, XXX */ 42 43#include <sys/param.h> 44#include <sys/systm.h> 45#include <sys/kernel.h> 46#include <sys/conf.h> 47#include <sys/fcntl.h> 48#include <sys/malloc.h> 49#include <sys/fbio.h> 50 51#include <vm/vm.h> 52#include <vm/vm_param.h> 53#include <vm/pmap.h> 54 55#include <machine/md_var.h> 56#if defined(__i386__) || defined(__amd64__) 57#include <machine/pc/bios.h> 58#endif 59#include <machine/bus.h> 60 61#include <dev/fb/fbreg.h> 62#include <dev/fb/vgareg.h> 63 64#include <isa/isareg.h> 65 66#ifndef VGA_DEBUG 67#define VGA_DEBUG 0 68#endif 69 70/* XXX machine/pc/bios.h has got too much i386-specific stuff in it */ 71#ifndef BIOS_PADDRTOVADDR 72#define BIOS_PADDRTOVADDR(x) (x) 73#endif 74 75int 76vga_probe_unit(int unit, video_adapter_t *buf, int flags) 77{ 78 video_adapter_t *adp; 79 video_switch_t *sw; 80 int error; 81 82 sw = vid_get_switch(VGA_DRIVER_NAME); 83 if (sw == NULL) 84 return 0; 85 error = (*sw->probe)(unit, &adp, NULL, flags); 86 if (error) 87 return error; 88 bcopy(adp, buf, sizeof(*buf)); 89 return 0; 90} 91 92int 93vga_attach_unit(int unit, vga_softc_t *sc, int flags) 94{ 95 video_switch_t *sw; 96 int error; 97 98 sw = vid_get_switch(VGA_DRIVER_NAME); 99 if (sw == NULL) 100 return ENXIO; 101 102 error = (*sw->probe)(unit, &sc->adp, NULL, flags); 103 if (error) 104 return error; 105 return (*sw->init)(unit, sc->adp, flags); 106} 107 108/* cdev driver functions */ 109 110#ifdef FB_INSTALL_CDEV 111 112int 113vga_open(struct cdev *dev, vga_softc_t *sc, int flag, int mode, struct thread *td) 114{ 115 if (sc == NULL) 116 return ENXIO; 117 if (mode & (O_CREAT | O_APPEND | O_TRUNC)) 118 return ENODEV; 119 120 return genfbopen(&sc->gensc, sc->adp, flag, mode, td); 121} 122 123int 124vga_close(struct cdev *dev, vga_softc_t *sc, int flag, int mode, struct thread *td) 125{ 126 return genfbclose(&sc->gensc, sc->adp, flag, mode, td); 127} 128 129int 130vga_read(struct cdev *dev, vga_softc_t *sc, struct uio *uio, int flag) 131{ 132 return genfbread(&sc->gensc, sc->adp, uio, flag); 133} 134 135int 136vga_write(struct cdev *dev, vga_softc_t *sc, struct uio *uio, int flag) 137{ 138 return genfbread(&sc->gensc, sc->adp, uio, flag); 139} 140 141int 142vga_ioctl(struct cdev *dev, vga_softc_t *sc, u_long cmd, caddr_t arg, int flag, 143 struct thread *td) 144{ 145 return genfbioctl(&sc->gensc, sc->adp, cmd, arg, flag, td); 146} 147 148int 149vga_mmap(struct cdev *dev, vga_softc_t *sc, vm_ooffset_t offset, 150 vm_offset_t *paddr, int prot, vm_memattr_t *memattr) 151{ 152 return genfbmmap(&sc->gensc, sc->adp, offset, paddr, prot, memattr); 153} 154 155#endif /* FB_INSTALL_CDEV */ 156 157/* LOW-LEVEL */ 158 159#include <isa/rtc.h> 160#ifdef __i386__ 161#include <dev/fb/vesa.h> 162#endif 163 164#define probe_done(adp) ((adp)->va_flags & V_ADP_PROBED) 165#define init_done(adp) ((adp)->va_flags & V_ADP_INITIALIZED) 166#define config_done(adp) ((adp)->va_flags & V_ADP_REGISTERED) 167 168/* for compatibility with old kernel options */ 169#ifdef SC_ALT_SEQACCESS 170#undef SC_ALT_SEQACCESS 171#undef VGA_ALT_SEQACCESS 172#define VGA_ALT_SEQACCESS 1 173#endif 174 175#ifdef SLOW_VGA 176#undef SLOW_VGA 177#undef VGA_SLOW_IOACCESS 178#define VGA_SLOW_IOACCESS 179#endif 180 181/* architecture dependent option */ 182#if !defined(__i386__) && !defined(__amd64__) 183#define VGA_NO_BIOS 1 184#endif 185 186/* this should really be in `rtc.h' */ 187#define RTC_EQUIPMENT 0x14 188 189/* various sizes */ 190#define V_MODE_MAP_SIZE (M_VGA_CG320 + 1) 191#define V_MODE_PARAM_SIZE 64 192 193/* video adapter state buffer */ 194struct adp_state { 195 int sig; 196#define V_STATE_SIG 0x736f6962 197 u_char regs[V_MODE_PARAM_SIZE]; 198}; 199typedef struct adp_state adp_state_t; 200 201/* video adapter information */ 202#define DCC_MONO 0 203#define DCC_CGA40 1 204#define DCC_CGA80 2 205#define DCC_EGAMONO 3 206#define DCC_EGA40 4 207#define DCC_EGA80 5 208 209/* 210 * NOTE: `va_window' should have a virtual address, but is initialized 211 * with a physical address in the following table, as verify_adapter() 212 * will perform address conversion at run-time. 213 */ 214static video_adapter_t adapter_init_value[] = { 215 /* DCC_MONO */ 216 { 0, KD_MONO, "mda", 0, 0, 0, IO_MDA, IO_MDASIZE, MONO_CRTC, 217 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 218 0, 0, 0, 0, 7, 0, }, 219 /* DCC_CGA40 */ 220 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 221 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 222 0, 0, 0, 0, 3, 0, }, 223 /* DCC_CGA80 */ 224 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 225 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 226 0, 0, 0, 0, 3, 0, }, 227 /* DCC_EGAMONO */ 228 { 0, KD_EGA, "ega", 0, 0, 0, IO_MDA, 48, MONO_CRTC, 229 EGA_BUF_BASE, EGA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 230 0, 0, 0, 0, 7, 0, }, 231 /* DCC_EGA40 */ 232 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 233 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 234 0, 0, 0, 0, 3, 0, }, 235 /* DCC_EGA80 */ 236 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 237 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 238 0, 0, 0, 0, 3, 0, }, 239}; 240 241static video_adapter_t biosadapter[2]; 242static int biosadapters = 0; 243 244/* video driver declarations */ 245static int vga_configure(int flags); 246 int (*vga_sub_configure)(int flags); 247#if 0 248static int vga_nop(void); 249#endif 250static int vga_error(void); 251static vi_probe_t vga_probe; 252static vi_init_t vga_init; 253static vi_get_info_t vga_get_info; 254static vi_query_mode_t vga_query_mode; 255static vi_set_mode_t vga_set_mode; 256static vi_save_font_t vga_save_font; 257static vi_load_font_t vga_load_font; 258static vi_show_font_t vga_show_font; 259static vi_save_palette_t vga_save_palette; 260static vi_load_palette_t vga_load_palette; 261static vi_set_border_t vga_set_border; 262static vi_save_state_t vga_save_state; 263static vi_load_state_t vga_load_state; 264static vi_set_win_org_t vga_set_origin; 265static vi_read_hw_cursor_t vga_read_hw_cursor; 266static vi_set_hw_cursor_t vga_set_hw_cursor; 267static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape; 268static vi_blank_display_t vga_blank_display; 269static vi_mmap_t vga_mmap_buf; 270static vi_ioctl_t vga_dev_ioctl; 271#ifndef VGA_NO_MODE_CHANGE 272static vi_clear_t vga_clear; 273static vi_fill_rect_t vga_fill_rect; 274static vi_bitblt_t vga_bitblt; 275#else /* VGA_NO_MODE_CHANGE */ 276#define vga_clear (vi_clear_t *)vga_error 277#define vga_fill_rect (vi_fill_rect_t *)vga_error 278#define vga_bitblt (vi_bitblt_t *)vga_error 279#endif 280static vi_diag_t vga_diag; 281 282static video_switch_t vgavidsw = { 283 vga_probe, 284 vga_init, 285 vga_get_info, 286 vga_query_mode, 287 vga_set_mode, 288 vga_save_font, 289 vga_load_font, 290 vga_show_font, 291 vga_save_palette, 292 vga_load_palette, 293 vga_set_border, 294 vga_save_state, 295 vga_load_state, 296 vga_set_origin, 297 vga_read_hw_cursor, 298 vga_set_hw_cursor, 299 vga_set_hw_cursor_shape, 300 vga_blank_display, 301 vga_mmap_buf, 302 vga_dev_ioctl, 303 vga_clear, 304 vga_fill_rect, 305 vga_bitblt, 306 vga_error, 307 vga_error, 308 vga_diag, 309}; 310 311VIDEO_DRIVER(mda, vgavidsw, NULL); 312VIDEO_DRIVER(cga, vgavidsw, NULL); 313VIDEO_DRIVER(ega, vgavidsw, NULL); 314VIDEO_DRIVER(vga, vgavidsw, vga_configure); 315 316/* VGA BIOS standard video modes */ 317#define EOT (-1) 318#define NA (-2) 319 320static video_info_t bios_vmode[] = { 321 /* CGA */ 322 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1, 323 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 324 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1, 325 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 326 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1, 327 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 328 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1, 329 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 330 /* EGA */ 331 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1, 332 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 333 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1, 334 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 335 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1, 336 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 337 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1, 338 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 339 /* VGA */ 340 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1, 341 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 342 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1, 343 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 344 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1, 345 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 346 /* MDA */ 347 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1, 348 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 349 /* EGA */ 350 { M_ENH_B80x43, 0, 80, 43, 8, 8, 2, 1, 351 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 352 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1, 353 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 354 /* VGA */ 355 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1, 356 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 357 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1, 358 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 359 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1, 360 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 361 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1, 362 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 363 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1, 364 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 365 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1, 366 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 367 368#ifndef VGA_NO_MODE_CHANGE 369 370#ifdef VGA_WIDTH90 371 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1, 372 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 373 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1, 374 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 375 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1, 376 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 377 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1, 378 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 379 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1, 380 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 381 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1, 382 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 383 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1, 384 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 385 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1, 386 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 387 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1, 388 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 389 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1, 390 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 391#endif /* VGA_WIDTH90 */ 392 393 /* CGA */ 394 { M_BG320, 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_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 397 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 398 { M_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1, 399 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 400 /* EGA */ 401 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4, 402 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 403 V_INFO_MM_PLANAR }, 404 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4, 405 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 406 V_INFO_MM_PLANAR }, 407 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 408 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 , 409 V_INFO_MM_PLANAR }, 410 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 411 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 412 V_INFO_MM_PLANAR }, 413 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2, 414 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 415 V_INFO_MM_PLANAR }, 416 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 417 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 418 V_INFO_MM_PLANAR }, 419 /* VGA */ 420 { M_BG640x480, 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_CG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 424 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 425 V_INFO_MM_PLANAR }, 426 { M_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1, 427 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 428 V_INFO_MM_PACKED, 1 }, 429 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 4, 430 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 431 V_INFO_MM_VGAX, 1 }, 432#endif /* VGA_NO_MODE_CHANGE */ 433 434 { EOT }, 435}; 436 437static int vga_init_done = FALSE; 438#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 439static u_char *video_mode_ptr = NULL; /* EGA/VGA */ 440static u_char *video_mode_ptr2 = NULL; /* CGA/MDA */ 441#endif 442static u_char *mode_map[V_MODE_MAP_SIZE]; 443static adp_state_t adpstate; 444static adp_state_t adpstate2; 445static int rows_offset = 1; 446 447/* local macros and functions */ 448#define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 449 450#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 451static void map_mode_table(u_char *map[], u_char *table, int max); 452#endif 453static void clear_mode_map(video_adapter_t *adp, u_char *map[], int max, 454 int color); 455#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 456static int map_mode_num(int mode); 457#endif 458static int map_gen_mode_num(int type, int color, int mode); 459static int map_bios_mode_num(int type, int color, int bios_mode); 460static u_char *get_mode_param(int mode); 461#ifndef VGA_NO_BIOS 462static void fill_adapter_param(int code, video_adapter_t *adp); 463#endif 464static int verify_adapter(video_adapter_t *adp); 465static void update_adapter_info(video_adapter_t *adp, video_info_t *info); 466#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 467#define COMP_IDENTICAL 0 468#define COMP_SIMILAR 1 469#define COMP_DIFFERENT 2 470static int comp_adpregs(u_char *buf1, u_char *buf2); 471#endif 472static int probe_adapters(void); 473static int set_line_length(video_adapter_t *adp, int pixel); 474static int set_display_start(video_adapter_t *adp, int x, int y); 475 476#ifndef VGA_NO_MODE_CHANGE 477#ifdef VGA_WIDTH90 478static void set_width90(adp_state_t *params); 479#endif 480#endif /* !VGA_NO_MODE_CHANGE */ 481 482#ifndef VGA_NO_FONT_LOADING 483#define PARAM_BUFSIZE 6 484static void set_font_mode(video_adapter_t *adp, u_char *buf); 485static void set_normal_mode(video_adapter_t *adp, u_char *buf); 486#endif 487 488#ifndef VGA_NO_MODE_CHANGE 489static void filll_io(int val, vm_offset_t d, size_t size); 490static void planar_fill(video_adapter_t *adp, int val); 491static void packed_fill(video_adapter_t *adp, int val); 492static void direct_fill(video_adapter_t *adp, int val); 493#ifdef notyet 494static void planar_fill_rect(video_adapter_t *adp, int val, int x, int y, 495 int cx, int cy); 496static void packed_fill_rect(video_adapter_t *adp, int val, int x, int y, 497 int cx, int cy); 498static void direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, 499 int cx, int cy); 500static void direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, 501 int cx, int cy); 502static void direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, 503 int cx, int cy); 504#endif /* notyet */ 505#endif /* !VGA_NO_MODE_CHANGE */ 506 507static void dump_buffer(u_char *buf, size_t len); 508 509#define ISMAPPED(pa, width) \ 510 (((pa) <= (u_long)0x1000 - (width)) \ 511 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width))) 512 513#define prologue(adp, flag, err) \ 514 if (!vga_init_done || !((adp)->va_flags & (flag))) \ 515 return (err) 516 517/* a backdoor for the console driver */ 518static int 519vga_configure(int flags) 520{ 521 int i; 522 523 probe_adapters(); 524 for (i = 0; i < biosadapters; ++i) { 525 if (!probe_done(&biosadapter[i])) 526 continue; 527 biosadapter[i].va_flags |= V_ADP_INITIALIZED; 528 if (!config_done(&biosadapter[i])) { 529 if (vid_register(&biosadapter[i]) < 0) 530 continue; 531 biosadapter[i].va_flags |= V_ADP_REGISTERED; 532 } 533 } 534 if (vga_sub_configure != NULL) 535 (*vga_sub_configure)(flags); 536 537 return biosadapters; 538} 539 540/* local subroutines */ 541 542#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 543/* construct the mode parameter map */ 544static void 545map_mode_table(u_char *map[], u_char *table, int max) 546{ 547 int i; 548 549 for(i = 0; i < max; ++i) 550 map[i] = table + i*V_MODE_PARAM_SIZE; 551 for(; i < V_MODE_MAP_SIZE; ++i) 552 map[i] = NULL; 553} 554#endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 555 556static void 557clear_mode_map(video_adapter_t *adp, u_char *map[], int max, int color) 558{ 559 video_info_t info; 560 int i; 561 562 /* 563 * NOTE: we don't touch `bios_vmode[]' because it is shared 564 * by all adapters. 565 */ 566 for(i = 0; i < max; ++i) { 567 if (vga_get_info(adp, i, &info)) 568 continue; 569 if ((info.vi_flags & V_INFO_COLOR) != color) 570 map[i] = NULL; 571 } 572} 573 574#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 575/* map the non-standard video mode to a known mode number */ 576static int 577map_mode_num(int mode) 578{ 579 static struct { 580 int from; 581 int to; 582 } mode_map[] = { 583 { M_ENH_B80x43, M_ENH_B80x25 }, 584 { M_ENH_C80x43, M_ENH_C80x25 }, 585 { M_VGA_M80x30, M_VGA_M80x25 }, 586 { M_VGA_C80x30, M_VGA_C80x25 }, 587 { M_VGA_M80x50, M_VGA_M80x25 }, 588 { M_VGA_C80x50, M_VGA_C80x25 }, 589 { M_VGA_M80x60, M_VGA_M80x25 }, 590 { M_VGA_C80x60, M_VGA_C80x25 }, 591#ifdef VGA_WIDTH90 592 { M_VGA_M90x25, M_VGA_M80x25 }, 593 { M_VGA_C90x25, M_VGA_C80x25 }, 594 { M_VGA_M90x30, M_VGA_M80x25 }, 595 { M_VGA_C90x30, M_VGA_C80x25 }, 596 { M_VGA_M90x43, M_ENH_B80x25 }, 597 { M_VGA_C90x43, M_ENH_C80x25 }, 598 { M_VGA_M90x50, M_VGA_M80x25 }, 599 { M_VGA_C90x50, M_VGA_C80x25 }, 600 { M_VGA_M90x60, M_VGA_M80x25 }, 601 { M_VGA_C90x60, M_VGA_C80x25 }, 602#endif 603 { M_VGA_MODEX, M_VGA_CG320 }, 604 }; 605 int i; 606 607 for (i = 0; i < nitems(mode_map); ++i) { 608 if (mode_map[i].from == mode) 609 return mode_map[i].to; 610 } 611 return mode; 612} 613#endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 614 615/* map a generic video mode to a known mode number */ 616static int 617map_gen_mode_num(int type, int color, int mode) 618{ 619 static struct { 620 int from; 621 int to_color; 622 int to_mono; 623 } mode_map[] = { 624 { M_TEXT_80x30, M_VGA_C80x30, M_VGA_M80x30, }, 625 { M_TEXT_80x43, M_ENH_C80x43, M_ENH_B80x43, }, 626 { M_TEXT_80x50, M_VGA_C80x50, M_VGA_M80x50, }, 627 { M_TEXT_80x60, M_VGA_C80x60, M_VGA_M80x60, }, 628 }; 629 int i; 630 631 if (mode == M_TEXT_80x25) { 632 switch (type) { 633 634 case KD_VGA: 635 if (color) 636 return M_VGA_C80x25; 637 else 638 return M_VGA_M80x25; 639 break; 640 641 case KD_EGA: 642 if (color) 643 return M_ENH_C80x25; 644 else 645 return M_EGAMONO80x25; 646 break; 647 648 case KD_CGA: 649 return M_C80x25; 650 651 case KD_MONO: 652 case KD_HERCULES: 653 return M_EGAMONO80x25; /* XXX: this name is confusing */ 654 655 default: 656 return -1; 657 } 658 } 659 660 for (i = 0; i < nitems(mode_map); ++i) { 661 if (mode_map[i].from == mode) 662 return ((color) ? mode_map[i].to_color : mode_map[i].to_mono); 663 } 664 return mode; 665} 666 667/* turn the BIOS video number into our video mode number */ 668static int 669map_bios_mode_num(int type, int color, int bios_mode) 670{ 671 static int cga_modes[7] = { 672 M_B40x25, M_C40x25, /* 0, 1 */ 673 M_B80x25, M_C80x25, /* 2, 3 */ 674 M_BG320, M_CG320, 675 M_BG640, 676 }; 677 static int ega_modes[17] = { 678 M_ENH_B40x25, M_ENH_C40x25, /* 0, 1 */ 679 M_ENH_B80x25, M_ENH_C80x25, /* 2, 3 */ 680 M_BG320, M_CG320, 681 M_BG640, 682 M_EGAMONO80x25, /* 7 */ 683 8, 9, 10, 11, 12, 684 M_CG320_D, 685 M_CG640_E, 686 M_ENHMONOAPA2, /* XXX: video momery > 64K */ 687 M_ENH_CG640, /* XXX: video momery > 64K */ 688 }; 689 static int vga_modes[20] = { 690 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */ 691 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */ 692 M_BG320, M_CG320, 693 M_BG640, 694 M_VGA_M80x25, /* 7 */ 695 8, 9, 10, 11, 12, 696 M_CG320_D, 697 M_CG640_E, 698 M_ENHMONOAPA2, 699 M_ENH_CG640, 700 M_BG640x480, M_CG640x480, 701 M_VGA_CG320, 702 }; 703 704 switch (type) { 705 706 case KD_VGA: 707 if (bios_mode < nitems(vga_modes)) 708 return vga_modes[bios_mode]; 709 else if (color) 710 return M_VGA_C80x25; 711 else 712 return M_VGA_M80x25; 713 break; 714 715 case KD_EGA: 716 if (bios_mode < nitems(ega_modes)) 717 return ega_modes[bios_mode]; 718 else if (color) 719 return M_ENH_C80x25; 720 else 721 return M_EGAMONO80x25; 722 break; 723 724 case KD_CGA: 725 if (bios_mode < nitems(cga_modes)) 726 return cga_modes[bios_mode]; 727 else 728 return M_C80x25; 729 break; 730 731 case KD_MONO: 732 case KD_HERCULES: 733 return M_EGAMONO80x25; /* XXX: this name is confusing */ 734 735 default: 736 break; 737 } 738 return -1; 739} 740 741/* look up a parameter table entry */ 742static u_char 743*get_mode_param(int mode) 744{ 745#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 746 if (mode >= V_MODE_MAP_SIZE) 747 mode = map_mode_num(mode); 748#endif 749 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE)) 750 return mode_map[mode]; 751 else 752 return NULL; 753} 754 755#ifndef VGA_NO_BIOS 756static void 757fill_adapter_param(int code, video_adapter_t *adp) 758{ 759 static struct { 760 int primary; 761 int secondary; 762 } dcc[] = { 763 { DCC_MONO, DCC_EGA40 /* CGA monitor */ }, 764 { DCC_MONO, DCC_EGA80 /* CGA monitor */ }, 765 { DCC_MONO, DCC_EGA80 }, 766 { DCC_MONO, DCC_EGA80 }, 767 { DCC_CGA40, DCC_EGAMONO }, 768 { DCC_CGA80, DCC_EGAMONO }, 769 { DCC_EGA40 /* CGA monitor */, DCC_MONO}, 770 { DCC_EGA80 /* CGA monitor */, DCC_MONO}, 771 { DCC_EGA80, DCC_MONO }, 772 { DCC_EGA80, DCC_MONO }, 773 { DCC_EGAMONO, DCC_CGA40 }, 774 { DCC_EGAMONO, DCC_CGA80 }, 775 }; 776 777 if ((code < 0) || (code >= nitems(dcc))) { 778 adp[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 779 adp[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 780 } else { 781 adp[V_ADP_PRIMARY] = adapter_init_value[dcc[code].primary]; 782 adp[V_ADP_SECONDARY] = adapter_init_value[dcc[code].secondary]; 783 } 784} 785#endif /* VGA_NO_BIOS */ 786 787static int 788verify_adapter(video_adapter_t *adp) 789{ 790 vm_offset_t buf; 791 u_int16_t v; 792#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 793 u_int32_t p; 794#endif 795 796 buf = BIOS_PADDRTOVADDR(adp->va_window); 797 v = readw(buf); 798 writew(buf, 0xA55A); 799 if (readw(buf) != 0xA55A) 800 return ENXIO; 801 writew(buf, v); 802 803 switch (adp->va_type) { 804 805 case KD_EGA: 806 outb(adp->va_crtc_addr, 7); 807 if (inb(adp->va_crtc_addr) == 7) { 808 adp->va_type = KD_VGA; 809 adp->va_name = "vga"; 810 adp->va_flags |= V_ADP_STATESAVE | V_ADP_PALETTE; 811 } 812 adp->va_flags |= V_ADP_STATELOAD | V_ADP_BORDER; 813 /* the color adapter may be in the 40x25 mode... XXX */ 814 815#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 816 /* get the BIOS video mode pointer */ 817 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8); 818 p = BIOS_SADDRTOLADDR(p); 819 if (ISMAPPED(p, sizeof(u_int32_t))) { 820 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p); 821 p = BIOS_SADDRTOLADDR(p); 822 if (ISMAPPED(p, V_MODE_PARAM_SIZE)) 823 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p); 824 } 825#endif 826 break; 827 828 case KD_CGA: 829 adp->va_flags |= V_ADP_COLOR | V_ADP_BORDER; 830 /* may be in the 40x25 mode... XXX */ 831#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 832 /* get the BIOS video mode pointer */ 833 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 834 p = BIOS_SADDRTOLADDR(p); 835 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 836#endif 837 break; 838 839 case KD_MONO: 840#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 841 /* get the BIOS video mode pointer */ 842 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 843 p = BIOS_SADDRTOLADDR(p); 844 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 845#endif 846 break; 847 } 848 849 return 0; 850} 851 852static void 853update_adapter_info(video_adapter_t *adp, video_info_t *info) 854{ 855 adp->va_flags &= ~V_ADP_COLOR; 856 adp->va_flags |= 857 (info->vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; 858 adp->va_crtc_addr = 859 (adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; 860 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window); 861 adp->va_window_size = info->vi_window_size; 862 adp->va_window_gran = info->vi_window_gran; 863 adp->va_window_orig = 0; 864 /* XXX */ 865 adp->va_buffer = info->vi_buffer; 866 adp->va_buffer_size = info->vi_buffer_size; 867 if (info->vi_mem_model == V_INFO_MM_VGAX) { 868 adp->va_line_width = info->vi_width/2; 869 } else if (info->vi_flags & V_INFO_GRAPHICS) { 870 switch (info->vi_depth/info->vi_planes) { 871 case 1: 872 adp->va_line_width = info->vi_width/8; 873 break; 874 case 2: 875 adp->va_line_width = info->vi_width/4; 876 break; 877 case 4: 878 adp->va_line_width = info->vi_width/2; 879 break; 880 case 8: 881 default: /* shouldn't happen */ 882 adp->va_line_width = info->vi_width; 883 break; 884 } 885 } else { 886 adp->va_line_width = info->vi_width; 887 } 888 adp->va_disp_start.x = 0; 889 adp->va_disp_start.y = 0; 890 bcopy(info, &adp->va_info, sizeof(adp->va_info)); 891} 892 893#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 894/* compare two parameter table entries */ 895static int 896comp_adpregs(u_char *buf1, u_char *buf2) 897{ 898 static struct { 899 u_char mask; 900 } params[V_MODE_PARAM_SIZE] = { 901 {0xff}, {0x00}, {0xff}, /* COLS}, ROWS}, POINTS */ 902 {0x00}, {0x00}, /* page length */ 903 {0xfe}, {0xff}, {0xff}, {0xff}, /* sequencer registers */ 904 {0xf3}, /* misc register */ 905 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, /* CRTC */ 906 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, 907 {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, 908 {0x00}, {0xff}, {0x7f}, {0xff}, {0xff}, 909 {0x7f}, {0xff}, {0xff}, {0xef}, {0xff}, 910 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* attribute controller regs */ 911 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 912 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 913 {0xff}, {0xff}, {0xff}, {0xff}, {0xf0}, 914 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* GDC register */ 915 {0xff}, {0xff}, {0xff}, {0xff}, 916 }; 917 int identical = TRUE; 918 int i; 919 920 if ((buf1 == NULL) || (buf2 == NULL)) 921 return COMP_DIFFERENT; 922 923 for (i = 0; i < nitems(params); ++i) { 924 if (params[i].mask == 0) /* don't care */ 925 continue; 926 if ((buf1[i] & params[i].mask) != (buf2[i] & params[i].mask)) 927 return COMP_DIFFERENT; 928 if (buf1[i] != buf2[i]) 929 identical = FALSE; 930 } 931 return (identical) ? COMP_IDENTICAL : COMP_SIMILAR; 932} 933#endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 934 935/* probe video adapters and return the number of detected adapters */ 936static int 937probe_adapters(void) 938{ 939 video_adapter_t *adp; 940 video_info_t info; 941#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 942 u_char *mp; 943#endif 944 int i; 945 946 /* do this test only once */ 947 if (vga_init_done) 948 return biosadapters; 949 vga_init_done = TRUE; 950 951 /* 952 * Locate display adapters. 953 * The AT architecture supports up to two adapters. `syscons' allows 954 * the following combinations of adapters: 955 * 1) MDA + CGA 956 * 2) MDA + EGA/VGA color 957 * 3) CGA + EGA/VGA mono 958 * Note that `syscons' doesn't bother with MCGA as it is only 959 * avaiable for low end PS/2 models which has 80286 or earlier CPUs, 960 * thus, they are not running FreeBSD! 961 * When there are two adapaters in the system, one becomes `primary' 962 * and the other `secondary'. The EGA adapter has a set of DIP 963 * switches on board for this information and the EGA BIOS copies 964 * it in the BIOS data area BIOSDATA_VIDEOSWITCH (40:88). 965 * The VGA BIOS has more sophisticated mechanism and has this 966 * information in BIOSDATA_DCCINDEX (40:8a), but it also maintains 967 * compatibility with the EGA BIOS by updating BIOSDATA_VIDEOSWITCH. 968 */ 969 970 /* 971 * Check rtc and BIOS data area. 972 * XXX: we don't use BIOSDATA_EQUIPMENT, since it is not a dead 973 * copy of RTC_EQUIPMENT. Bits 4 and 5 of ETC_EQUIPMENT are 974 * zeros for EGA and VGA. However, the EGA/VGA BIOS sets 975 * these bits in BIOSDATA_EQUIPMENT according to the monitor 976 * type detected. 977 */ 978#ifndef VGA_NO_BIOS 979 if (*(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8)) { 980 /* EGA/VGA BIOS is present */ 981 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 982 biosadapter); 983 } else { 984 switch ((rtcin(RTC_EQUIPMENT) >> 4) & 3) { /* bit 4 and 5 */ 985 case 0: 986 /* EGA/VGA: shouldn't be happening */ 987 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 988 biosadapter); 989 break; 990 case 1: 991 /* CGA 40x25 */ 992 /* FIXME: switch to the 80x25 mode? XXX */ 993 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA40]; 994 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 995 break; 996 case 2: 997 /* CGA 80x25 */ 998 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA80]; 999 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 1000 break; 1001 case 3: 1002 /* MDA */ 1003 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 1004 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 1005 break; 1006 } 1007 } 1008#else 1009 /* assume EGA/VGA? XXX */ 1010 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_EGA80]; 1011 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 1012#endif /* VGA_NO_BIOS */ 1013 1014 biosadapters = 0; 1015 if (verify_adapter(&biosadapter[V_ADP_SECONDARY]) == 0) { 1016 ++biosadapters; 1017 biosadapter[V_ADP_SECONDARY].va_flags |= V_ADP_PROBED; 1018 biosadapter[V_ADP_SECONDARY].va_mode = 1019 biosadapter[V_ADP_SECONDARY].va_initial_mode = 1020 map_bios_mode_num(biosadapter[V_ADP_SECONDARY].va_type, 1021 biosadapter[V_ADP_SECONDARY].va_flags 1022 & V_ADP_COLOR, 1023 biosadapter[V_ADP_SECONDARY].va_initial_bios_mode); 1024 } else { 1025 biosadapter[V_ADP_SECONDARY].va_type = -1; 1026 } 1027 if (verify_adapter(&biosadapter[V_ADP_PRIMARY]) == 0) { 1028 ++biosadapters; 1029 biosadapter[V_ADP_PRIMARY].va_flags |= V_ADP_PROBED; 1030#ifndef VGA_NO_BIOS 1031 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 1032 readb(BIOS_PADDRTOVADDR(0x449)); 1033#else 1034 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 3; /* XXX */ 1035#endif 1036 biosadapter[V_ADP_PRIMARY].va_mode = 1037 biosadapter[V_ADP_PRIMARY].va_initial_mode = 1038 map_bios_mode_num(biosadapter[V_ADP_PRIMARY].va_type, 1039 biosadapter[V_ADP_PRIMARY].va_flags & V_ADP_COLOR, 1040 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode); 1041 } else { 1042 biosadapter[V_ADP_PRIMARY] = biosadapter[V_ADP_SECONDARY]; 1043 biosadapter[V_ADP_SECONDARY].va_type = -1; 1044 } 1045 if (biosadapters == 0) 1046 return biosadapters; 1047 biosadapter[V_ADP_PRIMARY].va_unit = V_ADP_PRIMARY; 1048 biosadapter[V_ADP_SECONDARY].va_unit = V_ADP_SECONDARY; 1049 1050#if 0 /* we don't need these... */ 1051 fb_init_struct(&biosadapter[V_ADP_PRIMARY], ...); 1052 fb_init_struct(&biosadapter[V_ADP_SECONDARY], ...); 1053#endif 1054 1055#ifdef notyet 1056 /* 1057 * We cannot have two video adapter of the same type; there must be 1058 * only one of color or mono adapter, or one each of them. 1059 */ 1060 if (biosadapters > 1) { 1061 if (!((biosadapter[0].va_flags ^ biosadapter[1].va_flags) 1062 & V_ADP_COLOR)) 1063 /* we have two mono or color adapters!! */ 1064 return (biosadapters = 0); 1065 } 1066#endif 1067 1068 /* 1069 * Ensure a zero start address. The registers are w/o 1070 * for old hardware so it's too hard to relocate the active screen 1071 * memory. 1072 * This must be done before vga_save_state() for VGA. 1073 */ 1074 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 12); 1075 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1076 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 13); 1077 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1078 1079 /* the video mode parameter table in EGA/VGA BIOS */ 1080 /* NOTE: there can be only one EGA/VGA, wheather color or mono, 1081 * recognized by the video BIOS. 1082 */ 1083 if ((biosadapter[V_ADP_PRIMARY].va_type == KD_EGA) || 1084 (biosadapter[V_ADP_PRIMARY].va_type == KD_VGA)) { 1085 adp = &biosadapter[V_ADP_PRIMARY]; 1086 } else if ((biosadapter[V_ADP_SECONDARY].va_type == KD_EGA) || 1087 (biosadapter[V_ADP_SECONDARY].va_type == KD_VGA)) { 1088 adp = &biosadapter[V_ADP_SECONDARY]; 1089 } else { 1090 adp = NULL; 1091 } 1092 bzero(mode_map, sizeof(mode_map)); 1093 if (adp != NULL) { 1094 if (adp->va_type == KD_VGA) { 1095 vga_save_state(adp, &adpstate, sizeof(adpstate)); 1096#if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1097 mode_map[adp->va_initial_mode] = adpstate.regs; 1098 rows_offset = 1; 1099#else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1100 if (video_mode_ptr == NULL) { 1101 mode_map[adp->va_initial_mode] = adpstate.regs; 1102 rows_offset = 1; 1103 } else { 1104 /* discard the table if we are not familiar with it... */ 1105 map_mode_table(mode_map, video_mode_ptr, M_VGA_CG320 + 1); 1106 mp = get_mode_param(adp->va_initial_mode); 1107 if (mp != NULL) 1108 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs)); 1109 switch (comp_adpregs(adpstate.regs, mp)) { 1110 case COMP_IDENTICAL: 1111 /* 1112 * OK, this parameter table looks reasonably familiar 1113 * to us... 1114 */ 1115 /* 1116 * This is a kludge for Toshiba DynaBook SS433 1117 * whose BIOS video mode table entry has the actual # 1118 * of rows at the offset 1; BIOSes from other 1119 * manufacturers store the # of rows - 1 there. XXX 1120 */ 1121 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1122 break; 1123 1124 case COMP_SIMILAR: 1125 /* 1126 * Not exactly the same, but similar enough to be 1127 * trusted. However, use the saved register values 1128 * for the initial mode and other modes which are 1129 * based on the initial mode. 1130 */ 1131 mode_map[adp->va_initial_mode] = adpstate.regs; 1132 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1133 adpstate.regs[1] -= rows_offset - 1; 1134 break; 1135 1136 case COMP_DIFFERENT: 1137 default: 1138 /* 1139 * Don't use the parameter table in BIOS. It doesn't 1140 * look familiar to us. Video mode switching is allowed 1141 * only if the new mode is the same as or based on 1142 * the initial mode. 1143 */ 1144 video_mode_ptr = NULL; 1145 bzero(mode_map, sizeof(mode_map)); 1146 mode_map[adp->va_initial_mode] = adpstate.regs; 1147 rows_offset = 1; 1148 break; 1149 } 1150 } 1151#endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1152 1153#ifndef VGA_NO_MODE_CHANGE 1154 adp->va_flags |= V_ADP_MODECHANGE; 1155#endif 1156#ifndef VGA_NO_FONT_LOADING 1157 adp->va_flags |= V_ADP_FONT; 1158#endif 1159 } else if (adp->va_type == KD_EGA) { 1160#if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1161 rows_offset = 1; 1162#else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1163 if (video_mode_ptr == NULL) { 1164 rows_offset = 1; 1165 } else { 1166 map_mode_table(mode_map, video_mode_ptr, M_ENH_C80x25 + 1); 1167 /* XXX how can one validate the EGA table... */ 1168 mp = get_mode_param(adp->va_initial_mode); 1169 if (mp != NULL) { 1170 adp->va_flags |= V_ADP_MODECHANGE; 1171#ifndef VGA_NO_FONT_LOADING 1172 adp->va_flags |= V_ADP_FONT; 1173#endif 1174 rows_offset = 1; 1175 } else { 1176 /* 1177 * This is serious. We will not be able to switch video 1178 * modes at all... 1179 */ 1180 video_mode_ptr = NULL; 1181 bzero(mode_map, sizeof(mode_map)); 1182 rows_offset = 1; 1183 } 1184 } 1185#endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1186 } 1187 } 1188 1189 /* remove conflicting modes if we have more than one adapter */ 1190 if (biosadapters > 0) { 1191 for (i = 0; i < biosadapters; ++i) { 1192 if (!(biosadapter[i].va_flags & V_ADP_MODECHANGE)) 1193 continue; 1194 clear_mode_map(&biosadapter[i], mode_map, M_VGA_CG320 + 1, 1195 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1196 V_INFO_COLOR : 0); 1197 if ((biosadapter[i].va_type == KD_VGA) 1198 || (biosadapter[i].va_type == KD_EGA)) { 1199 biosadapter[i].va_io_base = 1200 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1201 IO_VGA : IO_MDA; 1202 biosadapter[i].va_io_size = 32; 1203 } 1204 } 1205 } 1206 1207 /* buffer address */ 1208 vga_get_info(&biosadapter[V_ADP_PRIMARY], 1209 biosadapter[V_ADP_PRIMARY].va_initial_mode, &info); 1210 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1211 update_adapter_info(&biosadapter[V_ADP_PRIMARY], &info); 1212 1213 if (biosadapters > 1) { 1214 vga_get_info(&biosadapter[V_ADP_SECONDARY], 1215 biosadapter[V_ADP_SECONDARY].va_initial_mode, &info); 1216 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1217 update_adapter_info(&biosadapter[V_ADP_SECONDARY], &info); 1218 } 1219 1220 /* 1221 * XXX: we should verify the following values for the primary adapter... 1222 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463); 1223 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02) 1224 * ? 0 : V_ADP_COLOR; 1225 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a); 1226 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484); 1227 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485); 1228 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c); 1229 */ 1230 1231 return biosadapters; 1232} 1233 1234/* set the scan line length in pixel */ 1235static int 1236set_line_length(video_adapter_t *adp, int pixel) 1237{ 1238 u_char *mp; 1239 int ppw; /* pixels per word */ 1240 int bpl; /* bytes per line */ 1241 int count; 1242 1243 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1244 return ENODEV; 1245 mp = get_mode_param(adp->va_mode); 1246 if (mp == NULL) 1247 return EINVAL; 1248 1249 switch (adp->va_info.vi_mem_model) { 1250 case V_INFO_MM_PLANAR: 1251 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1252 count = howmany(pixel, ppw)/2; 1253 bpl = (howmany(pixel, ppw)/2)*4; 1254 break; 1255 case V_INFO_MM_PACKED: 1256 count = (pixel + 7)/8; 1257 bpl = rounddown(pixel + 7, 8); 1258 break; 1259 case V_INFO_MM_TEXT: 1260 count = (pixel + 7)/8; /* columns */ 1261 bpl = (pixel + 7)/8; /* columns */ 1262 break; 1263 default: 1264 return ENODEV; 1265 } 1266 1267 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */ 1268 count *= 2; /* byte mode */ 1269 outb(adp->va_crtc_addr, 0x13); 1270 outb(adp->va_crtc_addr + 1, count); 1271 adp->va_line_width = bpl; 1272 1273 return 0; 1274} 1275 1276static int 1277set_display_start(video_adapter_t *adp, int x, int y) 1278{ 1279 int off; /* byte offset (graphics mode)/word offset (text mode) */ 1280 int poff; /* pixel offset */ 1281 int roff; /* row offset */ 1282 int ppb; /* pixels per byte */ 1283 1284 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1285 x &= ~7; 1286 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) { 1287 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1288 off = y*adp->va_line_width + x/ppb; 1289 roff = 0; 1290 poff = x%ppb; 1291 } else { 1292 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1293 outb(TSIDX, 1); 1294 if (inb(TSREG) & 1) 1295 ppb = 9; 1296 else 1297 ppb = 8; 1298 } else { 1299 ppb = 8; 1300 } 1301 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb; 1302 roff = y%adp->va_info.vi_cheight; 1303 /* FIXME: is this correct? XXX */ 1304 if (ppb == 8) 1305 poff = x%ppb; 1306 else 1307 poff = (x + 8)%ppb; 1308 } 1309 1310 /* start address */ 1311 outb(adp->va_crtc_addr, 0xc); /* high */ 1312 outb(adp->va_crtc_addr + 1, off >> 8); 1313 outb(adp->va_crtc_addr, 0xd); /* low */ 1314 outb(adp->va_crtc_addr + 1, off & 0xff); 1315 1316 /* horizontal pel pan */ 1317 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1318 inb(adp->va_crtc_addr + 6); 1319 outb(ATC, 0x13 | 0x20); 1320 outb(ATC, poff); 1321 inb(adp->va_crtc_addr + 6); 1322 outb(ATC, 0x20); 1323 } 1324 1325 /* preset raw scan */ 1326 outb(adp->va_crtc_addr, 8); 1327 outb(adp->va_crtc_addr + 1, roff); 1328 1329 adp->va_disp_start.x = x; 1330 adp->va_disp_start.y = y; 1331 return 0; 1332} 1333 1334#ifndef VGA_NO_MODE_CHANGE 1335#if defined(__i386__) || defined(__amd64__) /* XXX */ 1336static void 1337fill(int val, void *d, size_t size) 1338{ 1339 u_char *p = d; 1340 1341 while (size-- > 0) 1342 *p++ = val; 1343} 1344#endif /* __i386__ */ 1345 1346static void 1347filll_io(int val, vm_offset_t d, size_t size) 1348{ 1349 while (size-- > 0) { 1350 writel(d, val); 1351 d += sizeof(u_int32_t); 1352 } 1353} 1354#endif /* !VGA_NO_MODE_CHANGE */ 1355 1356/* entry points */ 1357 1358#if 0 1359static int 1360vga_nop(void) 1361{ 1362 return 0; 1363} 1364#endif 1365 1366static int 1367vga_error(void) 1368{ 1369 return ENODEV; 1370} 1371 1372static int 1373vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 1374{ 1375 probe_adapters(); 1376 if (unit >= biosadapters) 1377 return ENXIO; 1378 1379 *adpp = &biosadapter[unit]; 1380 1381 return 0; 1382} 1383 1384static int 1385vga_init(int unit, video_adapter_t *adp, int flags) 1386{ 1387 if ((unit >= biosadapters) || (adp == NULL) || !probe_done(adp)) 1388 return ENXIO; 1389 1390 if (!init_done(adp)) { 1391 /* nothing to do really... */ 1392 adp->va_flags |= V_ADP_INITIALIZED; 1393 } 1394 1395 if (!config_done(adp)) { 1396 if (vid_register(adp) < 0) 1397 return ENXIO; 1398 adp->va_flags |= V_ADP_REGISTERED; 1399 } 1400 if (vga_sub_configure != NULL) 1401 (*vga_sub_configure)(0); 1402 1403 return 0; 1404} 1405 1406/* 1407 * get_info(): 1408 * Return the video_info structure of the requested video mode. 1409 * 1410 * all adapters 1411 */ 1412static int 1413vga_get_info(video_adapter_t *adp, int mode, video_info_t *info) 1414{ 1415 int i; 1416 1417 if (!vga_init_done) 1418 return ENXIO; 1419 1420 mode = map_gen_mode_num(adp->va_type, adp->va_flags & V_ADP_COLOR, mode); 1421#ifndef VGA_NO_MODE_CHANGE 1422 if (adp->va_flags & V_ADP_MODECHANGE) { 1423 /* 1424 * If the parameter table entry for this mode is not found, 1425 * the mode is not supported... 1426 */ 1427 if (get_mode_param(mode) == NULL) 1428 return EINVAL; 1429 } else 1430#endif /* VGA_NO_MODE_CHANGE */ 1431 { 1432 /* 1433 * Even if we don't support video mode switching on this adapter, 1434 * the information on the initial (thus current) video mode 1435 * should be made available. 1436 */ 1437 if (mode != adp->va_initial_mode) 1438 return EINVAL; 1439 } 1440 1441 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1442 if (bios_vmode[i].vi_mode == NA) 1443 continue; 1444 if (mode == bios_vmode[i].vi_mode) { 1445 *info = bios_vmode[i]; 1446 /* XXX */ 1447 info->vi_buffer_size = info->vi_window_size*info->vi_planes; 1448 return 0; 1449 } 1450 } 1451 return EINVAL; 1452} 1453 1454/* 1455 * query_mode(): 1456 * Find a video mode matching the requested parameters. 1457 * Fields filled with 0 are considered "don't care" fields and 1458 * match any modes. 1459 * 1460 * all adapters 1461 */ 1462static int 1463vga_query_mode(video_adapter_t *adp, video_info_t *info) 1464{ 1465 int i; 1466 1467 if (!vga_init_done) 1468 return ENXIO; 1469 1470 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1471 if (bios_vmode[i].vi_mode == NA) 1472 continue; 1473 1474 if ((info->vi_width != 0) 1475 && (info->vi_width != bios_vmode[i].vi_width)) 1476 continue; 1477 if ((info->vi_height != 0) 1478 && (info->vi_height != bios_vmode[i].vi_height)) 1479 continue; 1480 if ((info->vi_cwidth != 0) 1481 && (info->vi_cwidth != bios_vmode[i].vi_cwidth)) 1482 continue; 1483 if ((info->vi_cheight != 0) 1484 && (info->vi_cheight != bios_vmode[i].vi_cheight)) 1485 continue; 1486 if ((info->vi_depth != 0) 1487 && (info->vi_depth != bios_vmode[i].vi_depth)) 1488 continue; 1489 if ((info->vi_planes != 0) 1490 && (info->vi_planes != bios_vmode[i].vi_planes)) 1491 continue; 1492 /* XXX: should check pixel format, memory model */ 1493 if ((info->vi_flags != 0) 1494 && (info->vi_flags != bios_vmode[i].vi_flags)) 1495 continue; 1496 1497 /* verify if this mode is supported on this adapter */ 1498 if (vga_get_info(adp, bios_vmode[i].vi_mode, info)) 1499 continue; 1500 return 0; 1501 } 1502 return ENODEV; 1503} 1504 1505/* 1506 * set_mode(): 1507 * Change the video mode. 1508 * 1509 * EGA/VGA 1510 */ 1511 1512#ifndef VGA_NO_MODE_CHANGE 1513#ifdef VGA_WIDTH90 1514static void 1515set_width90(adp_state_t *params) 1516{ 1517 /* 1518 * Based on code submitted by Kelly Yancey (kbyanc@freedomnet.com) 1519 * and alexv@sui.gda.itesm.mx. 1520 */ 1521 params->regs[5] |= 1; /* toggle 8 pixel wide fonts */ 1522 params->regs[10+0x0] = 0x6b; 1523 params->regs[10+0x1] = 0x59; 1524 params->regs[10+0x2] = 0x5a; 1525 params->regs[10+0x3] = 0x8e; 1526 params->regs[10+0x4] = 0x5e; 1527 params->regs[10+0x5] = 0x8a; 1528 params->regs[10+0x13] = 45; 1529 params->regs[35+0x13] = 0; 1530} 1531#endif /* VGA_WIDTH90 */ 1532#endif /* !VGA_NO_MODE_CHANGE */ 1533 1534static int 1535vga_set_mode(video_adapter_t *adp, int mode) 1536{ 1537#ifndef VGA_NO_MODE_CHANGE 1538 video_info_t info; 1539 adp_state_t params; 1540 1541 prologue(adp, V_ADP_MODECHANGE, ENODEV); 1542 1543 mode = map_gen_mode_num(adp->va_type, 1544 adp->va_flags & V_ADP_COLOR, mode); 1545 if (vga_get_info(adp, mode, &info)) 1546 return EINVAL; 1547 1548#if VGA_DEBUG > 1 1549 printf("vga_set_mode(): setting mode %d\n", mode); 1550#endif 1551 1552 params.sig = V_STATE_SIG; 1553 bcopy(get_mode_param(mode), params.regs, sizeof(params.regs)); 1554 1555 switch (mode) { 1556#ifdef VGA_WIDTH90 1557 case M_VGA_C90x60: case M_VGA_M90x60: 1558 set_width90(¶ms); 1559 /* FALLTHROUGH */ 1560#endif 1561 case M_VGA_C80x60: case M_VGA_M80x60: 1562 params.regs[2] = 0x08; 1563 params.regs[19] = 0x47; 1564 goto special_480l; 1565 1566#ifdef VGA_WIDTH90 1567 case M_VGA_C90x30: case M_VGA_M90x30: 1568 set_width90(¶ms); 1569 /* FALLTHROUGH */ 1570#endif 1571 case M_VGA_C80x30: case M_VGA_M80x30: 1572 params.regs[19] = 0x4f; 1573special_480l: 1574 params.regs[9] |= 0xc0; 1575 params.regs[16] = 0x08; 1576 params.regs[17] = 0x3e; 1577 params.regs[26] = 0xea; 1578 params.regs[28] = 0xdf; 1579 params.regs[31] = 0xe7; 1580 params.regs[32] = 0x04; 1581 goto setup_mode; 1582 1583#ifdef VGA_WIDTH90 1584 case M_VGA_C90x43: case M_VGA_M90x43: 1585 set_width90(¶ms); 1586 /* FALLTHROUGH */ 1587#endif 1588 case M_ENH_C80x43: case M_ENH_B80x43: 1589 params.regs[28] = 87; 1590 goto special_80x50; 1591 1592#ifdef VGA_WIDTH90 1593 case M_VGA_C90x50: case M_VGA_M90x50: 1594 set_width90(¶ms); 1595 /* FALLTHROUGH */ 1596#endif 1597 case M_VGA_C80x50: case M_VGA_M80x50: 1598special_80x50: 1599 params.regs[2] = 8; 1600 params.regs[19] = 7; 1601 goto setup_mode; 1602 1603#ifdef VGA_WIDTH90 1604 case M_VGA_C90x25: case M_VGA_M90x25: 1605 set_width90(¶ms); 1606 /* FALLTHROUGH */ 1607#endif 1608 case M_VGA_C40x25: case M_VGA_C80x25: 1609 case M_VGA_M80x25: 1610 case M_B40x25: case M_C40x25: 1611 case M_B80x25: case M_C80x25: 1612 case M_ENH_B40x25: case M_ENH_C40x25: 1613 case M_ENH_B80x25: case M_ENH_C80x25: 1614 case M_EGAMONO80x25: 1615 1616setup_mode: 1617 vga_load_state(adp, ¶ms); 1618 break; 1619 1620 case M_VGA_MODEX: 1621 /* "unchain" the VGA mode */ 1622 params.regs[5-1+0x04] &= 0xf7; 1623 params.regs[5-1+0x04] |= 0x04; 1624 /* turn off doubleword mode */ 1625 params.regs[10+0x14] &= 0xbf; 1626 /* turn off word addressing */ 1627 params.regs[10+0x17] |= 0x40; 1628 /* set logical screen width */ 1629 params.regs[10+0x13] = 80; 1630 /* set 240 lines */ 1631 params.regs[10+0x11] = 0x2c; 1632 params.regs[10+0x06] = 0x0d; 1633 params.regs[10+0x07] = 0x3e; 1634 params.regs[10+0x10] = 0xea; 1635 params.regs[10+0x11] = 0xac; 1636 params.regs[10+0x12] = 0xdf; 1637 params.regs[10+0x15] = 0xe7; 1638 params.regs[10+0x16] = 0x06; 1639 /* set vertical sync polarity to reflect aspect ratio */ 1640 params.regs[9] = 0xe3; 1641 goto setup_grmode; 1642 1643 case M_BG320: case M_CG320: case M_BG640: 1644 case M_CG320_D: case M_CG640_E: 1645 case M_CG640x350: case M_ENH_CG640: 1646 case M_BG640x480: case M_CG640x480: case M_VGA_CG320: 1647 1648setup_grmode: 1649 vga_load_state(adp, ¶ms); 1650 break; 1651 1652 default: 1653 return EINVAL; 1654 } 1655 1656 adp->va_mode = mode; 1657 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1658 update_adapter_info(adp, &info); 1659 1660 /* move hardware cursor out of the way */ 1661 vidd_set_hw_cursor(adp, -1, -1); 1662 1663 return 0; 1664#else /* VGA_NO_MODE_CHANGE */ 1665 return ENODEV; 1666#endif /* VGA_NO_MODE_CHANGE */ 1667} 1668 1669#ifndef VGA_NO_FONT_LOADING 1670 1671static void 1672set_font_mode(video_adapter_t *adp, u_char *buf) 1673{ 1674 u_char *mp; 1675 int s; 1676 1677 s = splhigh(); 1678 1679 /* save register values */ 1680 if (adp->va_type == KD_VGA) { 1681 outb(TSIDX, 0x02); buf[0] = inb(TSREG); 1682 outb(TSIDX, 0x04); buf[1] = inb(TSREG); 1683 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG); 1684 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG); 1685 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG); 1686 inb(adp->va_crtc_addr + 6); 1687 outb(ATC, 0x10); buf[5] = inb(ATC + 1); 1688 } else /* if (adp->va_type == KD_EGA) */ { 1689 /* 1690 * EGA cannot be read; copy parameters from the mode parameter 1691 * table. 1692 */ 1693 mp = get_mode_param(adp->va_mode); 1694 buf[0] = mp[5 + 0x02 - 1]; 1695 buf[1] = mp[5 + 0x04 - 1]; 1696 buf[2] = mp[55 + 0x04]; 1697 buf[3] = mp[55 + 0x05]; 1698 buf[4] = mp[55 + 0x06]; 1699 buf[5] = mp[35 + 0x10]; 1700 } 1701 1702 /* setup vga for loading fonts */ 1703 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1704 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01); 1705 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1706 outb(ATC, 0x20); /* enable palette */ 1707 1708#ifdef VGA_SLOW_IOACCESS 1709#ifdef VGA_ALT_SEQACCESS 1710 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1711#endif 1712 outb(TSIDX, 0x02); outb(TSREG, 0x04); 1713 outb(TSIDX, 0x04); outb(TSREG, 0x07); 1714#ifdef VGA_ALT_SEQACCESS 1715 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1716#endif 1717 outb(GDCIDX, 0x04); outb(GDCREG, 0x02); 1718 outb(GDCIDX, 0x05); outb(GDCREG, 0x00); 1719 outb(GDCIDX, 0x06); outb(GDCREG, 0x04); 1720#else /* VGA_SLOW_IOACCESS */ 1721#ifdef VGA_ALT_SEQACCESS 1722 outw(TSIDX, 0x0100); 1723#endif 1724 outw(TSIDX, 0x0402); 1725 outw(TSIDX, 0x0704); 1726#ifdef VGA_ALT_SEQACCESS 1727 outw(TSIDX, 0x0300); 1728#endif 1729 outw(GDCIDX, 0x0204); 1730 outw(GDCIDX, 0x0005); 1731 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */ 1732#endif /* VGA_SLOW_IOACCESS */ 1733 1734 splx(s); 1735} 1736 1737static void 1738set_normal_mode(video_adapter_t *adp, u_char *buf) 1739{ 1740 int s; 1741 1742 s = splhigh(); 1743 1744 /* setup vga for normal operation mode again */ 1745 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1746 outb(ATC, 0x10); outb(ATC, buf[5]); 1747 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1748 outb(ATC, 0x20); /* enable palette */ 1749 1750#ifdef VGA_SLOW_IOACCESS 1751#ifdef VGA_ALT_SEQACCESS 1752 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1753#endif 1754 outb(TSIDX, 0x02); outb(TSREG, buf[0]); 1755 outb(TSIDX, 0x04); outb(TSREG, buf[1]); 1756#ifdef VGA_ALT_SEQACCESS 1757 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1758#endif 1759 outb(GDCIDX, 0x04); outb(GDCREG, buf[2]); 1760 outb(GDCIDX, 0x05); outb(GDCREG, buf[3]); 1761 if (adp->va_crtc_addr == MONO_CRTC) { 1762 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x08); 1763 } else { 1764 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x0c); 1765 } 1766#else /* VGA_SLOW_IOACCESS */ 1767#ifdef VGA_ALT_SEQACCESS 1768 outw(TSIDX, 0x0100); 1769#endif 1770 outw(TSIDX, 0x0002 | (buf[0] << 8)); 1771 outw(TSIDX, 0x0004 | (buf[1] << 8)); 1772#ifdef VGA_ALT_SEQACCESS 1773 outw(TSIDX, 0x0300); 1774#endif 1775 outw(GDCIDX, 0x0004 | (buf[2] << 8)); 1776 outw(GDCIDX, 0x0005 | (buf[3] << 8)); 1777 if (adp->va_crtc_addr == MONO_CRTC) 1778 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x08)<<8)); 1779 else 1780 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8)); 1781#endif /* VGA_SLOW_IOACCESS */ 1782 1783 splx(s); 1784} 1785 1786#endif /* VGA_NO_FONT_LOADING */ 1787 1788/* 1789 * save_font(): 1790 * Read the font data in the requested font page from the video adapter. 1791 * 1792 * EGA/VGA 1793 */ 1794static int 1795vga_save_font(video_adapter_t *adp, int page, int fontsize, int fontwidth, 1796 u_char *data, int ch, int count) 1797{ 1798#ifndef VGA_NO_FONT_LOADING 1799 u_char buf[PARAM_BUFSIZE]; 1800 vm_offset_t segment; 1801 int c; 1802#ifdef VGA_ALT_SEQACCESS 1803 int s; 1804 u_char val = 0; 1805#endif 1806 1807 prologue(adp, V_ADP_FONT, ENODEV); 1808 1809 if (fontsize < 14) { 1810 /* FONT_8 */ 1811 fontsize = 8; 1812 } else if (fontsize >= 32) { 1813 fontsize = 32; 1814 } else if (fontsize >= 16) { 1815 /* FONT_16 */ 1816 fontsize = 16; 1817 } else { 1818 /* FONT_14 */ 1819 fontsize = 14; 1820 } 1821 1822 if (page < 0 || page >= 8 || fontwidth != 8) 1823 return EINVAL; 1824 segment = FONT_BUF + 0x4000*page; 1825 if (page > 3) 1826 segment -= 0xe000; 1827 1828#ifdef VGA_ALT_SEQACCESS 1829 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1830 s = splhigh(); 1831 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1832 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1833 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1834 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1835 splx(s); 1836 } 1837#endif 1838 1839 set_font_mode(adp, buf); 1840 if (fontsize == 32) { 1841 bcopy_fromio((uintptr_t)segment + ch*32, data, fontsize*count); 1842 } else { 1843 for (c = ch; count > 0; ++c, --count) { 1844 bcopy_fromio((uintptr_t)segment + c*32, data, fontsize); 1845 data += fontsize; 1846 } 1847 } 1848 set_normal_mode(adp, buf); 1849 1850#ifdef VGA_ALT_SEQACCESS 1851 if (adp->va_type == KD_VGA) { 1852 s = splhigh(); 1853 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1854 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1855 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1856 splx(s); 1857 } 1858#endif 1859 1860 return 0; 1861#else /* VGA_NO_FONT_LOADING */ 1862 return ENODEV; 1863#endif /* VGA_NO_FONT_LOADING */ 1864} 1865 1866/* 1867 * load_font(): 1868 * Set the font data in the requested font page. 1869 * NOTE: it appears that some recent video adapters do not support 1870 * the font page other than 0... XXX 1871 * 1872 * EGA/VGA 1873 */ 1874static int 1875vga_load_font(video_adapter_t *adp, int page, int fontsize, int fontwidth, 1876 u_char *data, int ch, int count) 1877{ 1878#ifndef VGA_NO_FONT_LOADING 1879 u_char buf[PARAM_BUFSIZE]; 1880 vm_offset_t segment; 1881 int c; 1882#ifdef VGA_ALT_SEQACCESS 1883 int s; 1884 u_char val = 0; 1885#endif 1886 1887 prologue(adp, V_ADP_FONT, ENODEV); 1888 1889 if (fontsize < 14) { 1890 /* FONT_8 */ 1891 fontsize = 8; 1892 } else if (fontsize >= 32) { 1893 fontsize = 32; 1894 } else if (fontsize >= 16) { 1895 /* FONT_16 */ 1896 fontsize = 16; 1897 } else { 1898 /* FONT_14 */ 1899 fontsize = 14; 1900 } 1901 1902 if (page < 0 || page >= 8 || fontwidth != 8) 1903 return EINVAL; 1904 segment = FONT_BUF + 0x4000*page; 1905 if (page > 3) 1906 segment -= 0xe000; 1907 1908#ifdef VGA_ALT_SEQACCESS 1909 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1910 s = splhigh(); 1911 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1912 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1913 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1914 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1915 splx(s); 1916 } 1917#endif 1918 1919 set_font_mode(adp, buf); 1920 if (fontsize == 32) { 1921 bcopy_toio(data, (uintptr_t)segment + ch*32, fontsize*count); 1922 } else { 1923 for (c = ch; count > 0; ++c, --count) { 1924 bcopy_toio(data, (uintptr_t)segment + c*32, fontsize); 1925 data += fontsize; 1926 } 1927 } 1928 set_normal_mode(adp, buf); 1929 1930#ifdef VGA_ALT_SEQACCESS 1931 if (adp->va_type == KD_VGA) { 1932 s = splhigh(); 1933 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1934 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1935 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1936 splx(s); 1937 } 1938#endif 1939 1940 return 0; 1941#else /* VGA_NO_FONT_LOADING */ 1942 return ENODEV; 1943#endif /* VGA_NO_FONT_LOADING */ 1944} 1945 1946/* 1947 * show_font(): 1948 * Activate the requested font page. 1949 * NOTE: it appears that some recent video adapters do not support 1950 * the font page other than 0... XXX 1951 * 1952 * EGA/VGA 1953 */ 1954static int 1955vga_show_font(video_adapter_t *adp, int page) 1956{ 1957#ifndef VGA_NO_FONT_LOADING 1958 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f }; 1959 int s; 1960 1961 prologue(adp, V_ADP_FONT, ENODEV); 1962 if (page < 0 || page >= 8) 1963 return EINVAL; 1964 1965 s = splhigh(); 1966 outb(TSIDX, 0x03); outb(TSREG, cg[page]); 1967 splx(s); 1968 1969 return 0; 1970#else /* VGA_NO_FONT_LOADING */ 1971 return ENODEV; 1972#endif /* VGA_NO_FONT_LOADING */ 1973} 1974 1975/* 1976 * save_palette(): 1977 * Read DAC values. The values have expressed in 8 bits. 1978 * 1979 * VGA 1980 */ 1981static int 1982vga_save_palette(video_adapter_t *adp, u_char *palette) 1983{ 1984 int bits; 1985 int i; 1986 1987 prologue(adp, V_ADP_PALETTE, ENODEV); 1988 1989 /* 1990 * We store 8 bit values in the palette buffer, while the standard 1991 * VGA has 6 bit DAC . 1992 */ 1993 outb(PALRADR, 0x00); 1994 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; 1995 for (i = 0; i < 256*3; ++i) 1996 palette[i] = inb(PALDATA) << bits; 1997 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1998 return 0; 1999} 2000 2001static int 2002vga_save_palette2(video_adapter_t *adp, int base, int count, 2003 u_char *r, u_char *g, u_char *b) 2004{ 2005 int bits; 2006 int i; 2007 2008 prologue(adp, V_ADP_PALETTE, ENODEV); 2009 2010 outb(PALRADR, base); 2011 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; 2012 for (i = 0; i < count; ++i) { 2013 r[i] = inb(PALDATA) << bits; 2014 g[i] = inb(PALDATA) << bits; 2015 b[i] = inb(PALDATA) << bits; 2016 } 2017 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2018 return 0; 2019} 2020 2021/* 2022 * load_palette(): 2023 * Set DAC values. 2024 * 2025 * VGA 2026 */ 2027static int 2028vga_load_palette(video_adapter_t *adp, u_char *palette) 2029{ 2030 int bits; 2031 int i; 2032 2033 prologue(adp, V_ADP_PALETTE, ENODEV); 2034 2035 outb(PIXMASK, 0xff); /* no pixelmask */ 2036 outb(PALWADR, 0x00); 2037 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; 2038 for (i = 0; i < 256*3; ++i) 2039 outb(PALDATA, palette[i] >> bits); 2040 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2041 outb(ATC, 0x20); /* enable palette */ 2042 return 0; 2043} 2044 2045static int 2046vga_load_palette2(video_adapter_t *adp, int base, int count, 2047 u_char *r, u_char *g, u_char *b) 2048{ 2049 int bits; 2050 int i; 2051 2052 prologue(adp, V_ADP_PALETTE, ENODEV); 2053 2054 outb(PIXMASK, 0xff); /* no pixelmask */ 2055 outb(PALWADR, base); 2056 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; 2057 for (i = 0; i < count; ++i) { 2058 outb(PALDATA, r[i] >> bits); 2059 outb(PALDATA, g[i] >> bits); 2060 outb(PALDATA, b[i] >> bits); 2061 } 2062 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2063 outb(ATC, 0x20); /* enable palette */ 2064 return 0; 2065} 2066 2067/* 2068 * set_border(): 2069 * Change the border color. 2070 * 2071 * CGA/EGA/VGA 2072 */ 2073static int 2074vga_set_border(video_adapter_t *adp, int color) 2075{ 2076 prologue(adp, V_ADP_BORDER, ENODEV); 2077 2078 switch (adp->va_type) { 2079 case KD_EGA: 2080 case KD_VGA: 2081 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 2082 outb(ATC, 0x31); outb(ATC, color & 0xff); 2083 break; 2084 case KD_CGA: 2085 outb(adp->va_crtc_addr + 5, color & 0x0f); /* color select register */ 2086 break; 2087 case KD_MONO: 2088 case KD_HERCULES: 2089 default: 2090 break; 2091 } 2092 return 0; 2093} 2094 2095/* 2096 * save_state(): 2097 * Read video register values. 2098 * NOTE: this function only reads the standard EGA/VGA registers. 2099 * any extra/extended registers of SVGA adapters are not saved. 2100 * 2101 * VGA 2102 */ 2103static int 2104vga_save_state(video_adapter_t *adp, void *p, size_t size) 2105{ 2106 video_info_t info; 2107 u_char *buf; 2108 int crtc_addr; 2109 int i, j; 2110 int s; 2111 2112 if (size == 0) { 2113 /* return the required buffer size */ 2114 prologue(adp, V_ADP_STATESAVE, 0); 2115 return sizeof(adp_state_t); 2116 } else { 2117 prologue(adp, V_ADP_STATESAVE, ENODEV); 2118 if (size < sizeof(adp_state_t)) 2119 return EINVAL; 2120 } 2121 2122 ((adp_state_t *)p)->sig = V_STATE_SIG; 2123 buf = ((adp_state_t *)p)->regs; 2124 bzero(buf, V_MODE_PARAM_SIZE); 2125 crtc_addr = adp->va_crtc_addr; 2126 2127 s = splhigh(); 2128 2129 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2130 for (i = 0, j = 5; i < 4; i++) { 2131 outb(TSIDX, i + 1); 2132 buf[j++] = inb(TSREG); 2133 } 2134 buf[9] = inb(MISC + 10); /* dot-clock */ 2135 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2136 2137 for (i = 0, j = 10; i < 25; i++) { /* crtc */ 2138 outb(crtc_addr, i); 2139 buf[j++] = inb(crtc_addr + 1); 2140 } 2141 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */ 2142 inb(crtc_addr + 6); /* reset flip-flop */ 2143 outb(ATC, i); 2144 buf[j++] = inb(ATC + 1); 2145 } 2146 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */ 2147 outb(GDCIDX, i); 2148 buf[j++] = inb(GDCREG); 2149 } 2150 inb(crtc_addr + 6); /* reset flip-flop */ 2151 outb(ATC, 0x20); /* enable palette */ 2152 2153 splx(s); 2154 2155#if 1 2156 if (vga_get_info(adp, adp->va_mode, &info) == 0) { 2157 if (info.vi_flags & V_INFO_GRAPHICS) { 2158 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */ 2159 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */ 2160 } else { 2161 buf[0] = info.vi_width; /* COLS */ 2162 buf[1] = info.vi_height - 1; /* ROWS */ 2163 } 2164 buf[2] = info.vi_cheight; /* POINTS */ 2165 } 2166#else 2167 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */ 2168 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */ 2169 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */ 2170 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c)); 2171 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d)); 2172#endif 2173 2174 return 0; 2175} 2176 2177/* 2178 * load_state(): 2179 * Set video registers at once. 2180 * NOTE: this function only updates the standard EGA/VGA registers. 2181 * any extra/extended registers of SVGA adapters are not changed. 2182 * 2183 * EGA/VGA 2184 */ 2185static int 2186vga_load_state(video_adapter_t *adp, void *p) 2187{ 2188 u_char *buf; 2189 int crtc_addr; 2190 int s; 2191 int i; 2192 2193 prologue(adp, V_ADP_STATELOAD, ENODEV); 2194 if (((adp_state_t *)p)->sig != V_STATE_SIG) 2195 return EINVAL; 2196 2197 buf = ((adp_state_t *)p)->regs; 2198 crtc_addr = adp->va_crtc_addr; 2199 2200#if VGA_DEBUG > 1 2201 dump_buffer(buf, V_MODE_PARAM_SIZE); 2202#endif 2203 2204 s = splhigh(); 2205 2206 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2207 for (i = 0; i < 4; ++i) { /* program sequencer */ 2208 outb(TSIDX, i + 1); 2209 outb(TSREG, buf[i + 5]); 2210 } 2211 outb(MISC, buf[9]); /* set dot-clock */ 2212 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2213 outb(crtc_addr, 0x11); 2214 outb(crtc_addr + 1, inb(crtc_addr + 1) & 0x7F); 2215 for (i = 0; i < 25; ++i) { /* program crtc */ 2216 outb(crtc_addr, i); 2217 outb(crtc_addr + 1, buf[i + 10]); 2218 } 2219 inb(crtc_addr+6); /* reset flip-flop */ 2220 for (i = 0; i < 20; ++i) { /* program attribute ctrl */ 2221 outb(ATC, i); 2222 outb(ATC, buf[i + 35]); 2223 } 2224 for (i = 0; i < 9; ++i) { /* program graph data ctrl */ 2225 outb(GDCIDX, i); 2226 outb(GDCREG, buf[i + 55]); 2227 } 2228 inb(crtc_addr + 6); /* reset flip-flop */ 2229 outb(ATC, 0x20); /* enable palette */ 2230 2231#ifdef notyet /* a temporary workaround for kernel panic, XXX */ 2232#ifndef VGA_NO_BIOS 2233 if (adp->va_unit == V_ADP_PRIMARY) { 2234 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */ 2235 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */ 2236 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */ 2237#if 0 2238 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]); 2239 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]); 2240#endif 2241 } 2242#endif /* VGA_NO_BIOS */ 2243#endif /* notyet */ 2244 2245 splx(s); 2246 return 0; 2247} 2248 2249/* 2250 * set_origin(): 2251 * Change the origin (window mapping) of the banked frame buffer. 2252 */ 2253static int 2254vga_set_origin(video_adapter_t *adp, off_t offset) 2255{ 2256 /* 2257 * The standard video modes do not require window mapping; 2258 * always return error. 2259 */ 2260 return ENODEV; 2261} 2262 2263/* 2264 * read_hw_cursor(): 2265 * Read the position of the hardware text cursor. 2266 * 2267 * all adapters 2268 */ 2269static int 2270vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 2271{ 2272 u_int16_t off; 2273 int s; 2274 2275 if (!vga_init_done) 2276 return ENXIO; 2277 2278 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2279 return ENODEV; 2280 2281 s = spltty(); 2282 outb(adp->va_crtc_addr, 14); 2283 off = inb(adp->va_crtc_addr + 1); 2284 outb(adp->va_crtc_addr, 15); 2285 off = (off << 8) | inb(adp->va_crtc_addr + 1); 2286 splx(s); 2287 2288 *row = off / adp->va_info.vi_width; 2289 *col = off % adp->va_info.vi_width; 2290 2291 return 0; 2292} 2293 2294/* 2295 * set_hw_cursor(): 2296 * Move the hardware text cursor. If col and row are both -1, 2297 * the cursor won't be shown. 2298 * 2299 * all adapters 2300 */ 2301static int 2302vga_set_hw_cursor(video_adapter_t *adp, int col, int row) 2303{ 2304 u_int16_t off; 2305 int s; 2306 2307 if (!vga_init_done) 2308 return ENXIO; 2309 2310 if ((col == -1) && (row == -1)) { 2311 off = -1; 2312 } else { 2313 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2314 return ENODEV; 2315 off = row*adp->va_info.vi_width + col; 2316 } 2317 2318 s = spltty(); 2319 outb(adp->va_crtc_addr, 14); 2320 outb(adp->va_crtc_addr + 1, off >> 8); 2321 outb(adp->va_crtc_addr, 15); 2322 outb(adp->va_crtc_addr + 1, off & 0x00ff); 2323 splx(s); 2324 2325 return 0; 2326} 2327 2328/* 2329 * set_hw_cursor_shape(): 2330 * Change the shape of the hardware text cursor. If the height is 2331 * zero or negative, the cursor won't be shown. 2332 * 2333 * all adapters 2334 */ 2335static int 2336vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 2337 int celsize, int blink) 2338{ 2339 int s; 2340 2341 if (!vga_init_done) 2342 return ENXIO; 2343 2344 s = spltty(); 2345 switch (adp->va_type) { 2346 case KD_VGA: 2347 case KD_CGA: 2348 case KD_MONO: 2349 case KD_HERCULES: 2350 default: 2351 if (height <= 0) { 2352 /* make the cursor invisible */ 2353 outb(adp->va_crtc_addr, 10); 2354 outb(adp->va_crtc_addr + 1, 32); 2355 outb(adp->va_crtc_addr, 11); 2356 outb(adp->va_crtc_addr + 1, 0); 2357 } else { 2358 outb(adp->va_crtc_addr, 10); 2359 outb(adp->va_crtc_addr + 1, celsize - base - height); 2360 outb(adp->va_crtc_addr, 11); 2361 outb(adp->va_crtc_addr + 1, celsize - base - 1); 2362 } 2363 break; 2364 case KD_EGA: 2365 if (height <= 0) { 2366 /* make the cursor invisible */ 2367 outb(adp->va_crtc_addr, 10); 2368 outb(adp->va_crtc_addr + 1, celsize); 2369 outb(adp->va_crtc_addr, 11); 2370 outb(adp->va_crtc_addr + 1, 0); 2371 } else { 2372 outb(adp->va_crtc_addr, 10); 2373 outb(adp->va_crtc_addr + 1, celsize - base - height); 2374 outb(adp->va_crtc_addr, 11); 2375 outb(adp->va_crtc_addr + 1, celsize - base); 2376 } 2377 break; 2378 } 2379 splx(s); 2380 2381 return 0; 2382} 2383 2384/* 2385 * blank_display() 2386 * Put the display in power save/power off mode. 2387 * 2388 * all adapters 2389 */ 2390static int 2391vga_blank_display(video_adapter_t *adp, int mode) 2392{ 2393 u_char val; 2394 int s; 2395 2396 s = splhigh(); 2397 switch (adp->va_type) { 2398 case KD_VGA: 2399 switch (mode) { 2400 case V_DISPLAY_SUSPEND: 2401 case V_DISPLAY_STAND_BY: 2402 outb(TSIDX, 0x01); 2403 val = inb(TSREG); 2404 outb(TSIDX, 0x01); 2405 outb(TSREG, val | 0x20); 2406 outb(adp->va_crtc_addr, 0x17); 2407 val = inb(adp->va_crtc_addr + 1); 2408 outb(adp->va_crtc_addr + 1, val & ~0x80); 2409 break; 2410 case V_DISPLAY_BLANK: 2411 outb(TSIDX, 0x01); 2412 val = inb(TSREG); 2413 outb(TSIDX, 0x01); 2414 outb(TSREG, val | 0x20); 2415 break; 2416 case V_DISPLAY_ON: 2417 outb(TSIDX, 0x01); 2418 val = inb(TSREG); 2419 outb(TSIDX, 0x01); 2420 outb(TSREG, val & 0xDF); 2421 outb(adp->va_crtc_addr, 0x17); 2422 val = inb(adp->va_crtc_addr + 1); 2423 outb(adp->va_crtc_addr + 1, val | 0x80); 2424 break; 2425 } 2426 break; 2427 2428 case KD_EGA: 2429 /* no support yet */ 2430 splx(s); 2431 return ENODEV; 2432 2433 case KD_CGA: 2434 switch (mode) { 2435 case V_DISPLAY_SUSPEND: 2436 case V_DISPLAY_STAND_BY: 2437 case V_DISPLAY_BLANK: 2438 outb(adp->va_crtc_addr + 4, 0x25); 2439 break; 2440 case V_DISPLAY_ON: 2441 outb(adp->va_crtc_addr + 4, 0x2d); 2442 break; 2443 } 2444 break; 2445 2446 case KD_MONO: 2447 case KD_HERCULES: 2448 switch (mode) { 2449 case V_DISPLAY_SUSPEND: 2450 case V_DISPLAY_STAND_BY: 2451 case V_DISPLAY_BLANK: 2452 outb(adp->va_crtc_addr + 4, 0x21); 2453 break; 2454 case V_DISPLAY_ON: 2455 outb(adp->va_crtc_addr + 4, 0x29); 2456 break; 2457 } 2458 break; 2459 default: 2460 break; 2461 } 2462 splx(s); 2463 2464 return 0; 2465} 2466 2467/* 2468 * mmap(): 2469 * Mmap frame buffer. 2470 * 2471 * all adapters 2472 */ 2473static int 2474vga_mmap_buf(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr, 2475 int prot, vm_memattr_t *memattr) 2476{ 2477 if (adp->va_info.vi_flags & V_INFO_LINEAR) 2478 return -1; 2479 2480#if VGA_DEBUG > 0 2481 printf("vga_mmap_buf(): window:0x%jx, offset:0x%jx\n", 2482 (uintmax_t)adp->va_info.vi_window, (uintmax_t)offset); 2483#endif 2484 2485 /* XXX: is this correct? */ 2486 if (offset > adp->va_window_size - PAGE_SIZE) 2487 return -1; 2488 2489 *paddr = adp->va_info.vi_window + offset; 2490 return 0; 2491} 2492 2493#ifndef VGA_NO_MODE_CHANGE 2494 2495static void 2496planar_fill(video_adapter_t *adp, int val) 2497{ 2498 int length; 2499 int at; /* position in the frame buffer */ 2500 int l; 2501 2502 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2503 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2504 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2505 outw(GDCIDX, 0xff08); /* bit mask */ 2506 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2507 at = 0; 2508 length = adp->va_line_width*adp->va_info.vi_height; 2509 while (length > 0) { 2510 l = imin(length, adp->va_window_size); 2511 vidd_set_win_org(adp, at); 2512 bzero_io(adp->va_window, l); 2513 length -= l; 2514 at += l; 2515 } 2516 outw(GDCIDX, 0x0000); /* set/reset */ 2517 outw(GDCIDX, 0x0001); /* set/reset enable */ 2518} 2519 2520static void 2521packed_fill(video_adapter_t *adp, int val) 2522{ 2523 int length; 2524 int at; /* position in the frame buffer */ 2525 int l; 2526 2527 at = 0; 2528 length = adp->va_line_width*adp->va_info.vi_height; 2529 while (length > 0) { 2530 l = imin(length, adp->va_window_size); 2531 vidd_set_win_org(adp, at); 2532 fill_io(val, adp->va_window, l); 2533 length -= l; 2534 at += l; 2535 } 2536} 2537 2538static void 2539direct_fill(video_adapter_t *adp, int val) 2540{ 2541 int length; 2542 int at; /* position in the frame buffer */ 2543 int l; 2544 2545 at = 0; 2546 length = adp->va_line_width*adp->va_info.vi_height; 2547 while (length > 0) { 2548 l = imin(length, adp->va_window_size); 2549 vidd_set_win_org(adp, at); 2550 switch (adp->va_info.vi_pixel_size) { 2551 case sizeof(u_int16_t): 2552 fillw_io(val, adp->va_window, l/sizeof(u_int16_t)); 2553 break; 2554 case 3: 2555 /* FIXME */ 2556 break; 2557 case sizeof(u_int32_t): 2558 filll_io(val, adp->va_window, l/sizeof(u_int32_t)); 2559 break; 2560 } 2561 length -= l; 2562 at += l; 2563 } 2564} 2565 2566static int 2567vga_clear(video_adapter_t *adp) 2568{ 2569 switch (adp->va_info.vi_mem_model) { 2570 case V_INFO_MM_TEXT: 2571 /* do nothing? XXX */ 2572 break; 2573 case V_INFO_MM_PLANAR: 2574 planar_fill(adp, 0); 2575 break; 2576 case V_INFO_MM_PACKED: 2577 packed_fill(adp, 0); 2578 break; 2579 case V_INFO_MM_DIRECT: 2580 direct_fill(adp, 0); 2581 break; 2582 } 2583 return 0; 2584} 2585 2586#ifdef notyet 2587static void 2588planar_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2589{ 2590 int banksize; 2591 int bank; 2592 int pos; 2593 int offset; /* offset within window */ 2594 int bx; 2595 int l; 2596 2597 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2598 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2599 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2600 outw(GDCIDX, 0xff08); /* bit mask */ 2601 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2602 2603 banksize = adp->va_window_size; 2604 bank = -1; 2605 while (cy > 0) { 2606 pos = adp->va_line_width*y + x/8; 2607 if (bank != pos/banksize) { 2608 vidd_set_win_org(adp, pos); 2609 bank = pos/banksize; 2610 } 2611 offset = pos%banksize; 2612 bx = (x + cx)/8 - x/8; 2613 if (x % 8) { 2614 outw(GDCIDX, ((0xff00 >> (x % 8)) & 0xff00) | 0x08); 2615 writeb(adp->va_window + offset, 0); 2616 ++offset; 2617 --bx; 2618 if (offset >= banksize) { 2619 offset = 0; 2620 ++bank; /* next bank */ 2621 vidd_set_win_org(adp, bank*banksize); 2622 } 2623 outw(GDCIDX, 0xff08); /* bit mask */ 2624 } 2625 while (bx > 0) { 2626 l = imin(bx, banksize); 2627 bzero_io(adp->va_window + offset, l); 2628 offset += l; 2629 bx -= l; 2630 if (offset >= banksize) { 2631 offset = 0; 2632 ++bank; /* next bank */ 2633 vidd_set_win_org(adp, bank*banksize); 2634 } 2635 } 2636 if ((x + cx) % 8) { 2637 outw(GDCIDX, (~(0xff00 >> ((x + cx) % 8)) & 0xff00) | 0x08); 2638 writeb(adp->va_window + offset, 0); 2639 ++offset; 2640 if (offset >= banksize) { 2641 offset = 0; 2642 ++bank; /* next bank */ 2643 vidd_set_win_org(adp, bank*banksize); 2644 } 2645 outw(GDCIDX, 0xff08); /* bit mask */ 2646 } 2647 ++y; 2648 --cy; 2649 } 2650 2651 outw(GDCIDX, 0xff08); /* bit mask */ 2652 outw(GDCIDX, 0x0000); /* set/reset */ 2653 outw(GDCIDX, 0x0001); /* set/reset enable */ 2654} 2655 2656static void 2657packed_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2658{ 2659 int banksize; 2660 int bank; 2661 int pos; 2662 int offset; /* offset within window */ 2663 int end; 2664 2665 banksize = adp->va_window_size; 2666 bank = -1; 2667 cx *= adp->va_info.vi_pixel_size; 2668 while (cy > 0) { 2669 pos = adp->va_line_width*y + x*adp->va_info.vi_pixel_size; 2670 if (bank != pos/banksize) { 2671 vidd_set_win_org(adp, pos); 2672 bank = pos/banksize; 2673 } 2674 offset = pos%banksize; 2675 end = imin(offset + cx, banksize); 2676 fill_io(val, adp->va_window + offset, 2677 (end - offset)/adp->va_info.vi_pixel_size); 2678 /* the line may cross the window boundary */ 2679 if (offset + cx > banksize) { 2680 ++bank; /* next bank */ 2681 vidd_set_win_org(adp, bank*banksize); 2682 end = offset + cx - banksize; 2683 fill_io(val, adp->va_window, end/adp->va_info.vi_pixel_size); 2684 } 2685 ++y; 2686 --cy; 2687 } 2688} 2689 2690static void 2691direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2692{ 2693 int banksize; 2694 int bank; 2695 int pos; 2696 int offset; /* offset within window */ 2697 int end; 2698 2699 /* 2700 * XXX: the function assumes that banksize is a muliple of 2701 * sizeof(u_int16_t). 2702 */ 2703 banksize = adp->va_window_size; 2704 bank = -1; 2705 cx *= sizeof(u_int16_t); 2706 while (cy > 0) { 2707 pos = adp->va_line_width*y + x*sizeof(u_int16_t); 2708 if (bank != pos/banksize) { 2709 vidd_set_win_org(adp, pos); 2710 bank = pos/banksize; 2711 } 2712 offset = pos%banksize; 2713 end = imin(offset + cx, banksize); 2714 fillw_io(val, adp->va_window + offset, 2715 (end - offset)/sizeof(u_int16_t)); 2716 /* the line may cross the window boundary */ 2717 if (offset + cx > banksize) { 2718 ++bank; /* next bank */ 2719 vidd_set_win_org(adp, bank*banksize); 2720 end = offset + cx - banksize; 2721 fillw_io(val, adp->va_window, end/sizeof(u_int16_t)); 2722 } 2723 ++y; 2724 --cy; 2725 } 2726} 2727 2728static void 2729direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2730{ 2731 int banksize; 2732 int bank; 2733 int pos; 2734 int offset; /* offset within window */ 2735 int end; 2736 int i; 2737 int j; 2738 u_int8_t b[3]; 2739 2740 b[0] = val & 0x0000ff; 2741 b[1] = (val >> 8) & 0x0000ff; 2742 b[2] = (val >> 16) & 0x0000ff; 2743 banksize = adp->va_window_size; 2744 bank = -1; 2745 cx *= 3; 2746 while (cy > 0) { 2747 pos = adp->va_line_width*y + x*3; 2748 if (bank != pos/banksize) { 2749 vidd_set_win_org(adp, pos); 2750 bank = pos/banksize; 2751 } 2752 offset = pos%banksize; 2753 end = imin(offset + cx, banksize); 2754 for (i = 0, j = offset; j < end; i = (++i)%3, ++j) { 2755 writeb(adp->va_window + j, b[i]); 2756 } 2757 /* the line may cross the window boundary */ 2758 if (offset + cx >= banksize) { 2759 ++bank; /* next bank */ 2760 vidd_set_win_org(adp, bank*banksize); 2761 j = 0; 2762 end = offset + cx - banksize; 2763 for (; j < end; i = (++i)%3, ++j) { 2764 writeb(adp->va_window + j, b[i]); 2765 } 2766 } 2767 ++y; 2768 --cy; 2769 } 2770} 2771 2772static void 2773direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2774{ 2775 int banksize; 2776 int bank; 2777 int pos; 2778 int offset; /* offset within window */ 2779 int end; 2780 2781 /* 2782 * XXX: the function assumes that banksize is a muliple of 2783 * sizeof(u_int32_t). 2784 */ 2785 banksize = adp->va_window_size; 2786 bank = -1; 2787 cx *= sizeof(u_int32_t); 2788 while (cy > 0) { 2789 pos = adp->va_line_width*y + x*sizeof(u_int32_t); 2790 if (bank != pos/banksize) { 2791 vidd_set_win_org(adp, pos); 2792 bank = pos/banksize; 2793 } 2794 offset = pos%banksize; 2795 end = imin(offset + cx, banksize); 2796 filll_io(val, adp->va_window + offset, 2797 (end - offset)/sizeof(u_int32_t)); 2798 /* the line may cross the window boundary */ 2799 if (offset + cx > banksize) { 2800 ++bank; /* next bank */ 2801 vidd_set_win_org(adp, bank*banksize); 2802 end = offset + cx - banksize; 2803 filll_io(val, adp->va_window, end/sizeof(u_int32_t)); 2804 } 2805 ++y; 2806 --cy; 2807 } 2808} 2809 2810static int 2811vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2812{ 2813 switch (adp->va_info.vi_mem_model) { 2814 case V_INFO_MM_TEXT: 2815 /* do nothing? XXX */ 2816 break; 2817 case V_INFO_MM_PLANAR: 2818 planar_fill_rect(adp, val, x, y, cx, cy); 2819 break; 2820 case V_INFO_MM_PACKED: 2821 packed_fill_rect(adp, val, x, y, cx, cy); 2822 break; 2823 case V_INFO_MM_DIRECT: 2824 switch (adp->va_info.vi_pixel_size) { 2825 case sizeof(u_int16_t): 2826 direct_fill_rect16(adp, val, x, y, cx, cy); 2827 break; 2828 case 3: 2829 direct_fill_rect24(adp, val, x, y, cx, cy); 2830 break; 2831 case sizeof(u_int32_t): 2832 direct_fill_rect32(adp, val, x, y, cx, cy); 2833 break; 2834 } 2835 break; 2836 } 2837 return 0; 2838} 2839#else /* !notyet */ 2840static int 2841vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2842{ 2843 return ENODEV; 2844} 2845#endif /* notyet */ 2846 2847static int 2848vga_bitblt(video_adapter_t *adp,...) 2849{ 2850 /* FIXME */ 2851 return ENODEV; 2852} 2853 2854#endif /* !VGA_NO_MODE_CHANGE */ 2855 2856static int 2857get_palette(video_adapter_t *adp, int base, int count, 2858 u_char *red, u_char *green, u_char *blue, u_char *trans) 2859{ 2860 u_char *r; 2861 u_char *g; 2862 u_char *b; 2863 2864 if (count < 0 || base < 0 || count > 256 || base > 256 || 2865 base + count > 256) 2866 return EINVAL; 2867 2868 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2869 g = r + count; 2870 b = g + count; 2871 if (vga_save_palette2(adp, base, count, r, g, b)) { 2872 free(r, M_DEVBUF); 2873 return ENODEV; 2874 } 2875 copyout(r, red, count); 2876 copyout(g, green, count); 2877 copyout(b, blue, count); 2878 if (trans != NULL) { 2879 bzero(r, count); 2880 copyout(r, trans, count); 2881 } 2882 free(r, M_DEVBUF); 2883 2884 return 0; 2885} 2886 2887static int 2888set_palette(video_adapter_t *adp, int base, int count, 2889 u_char *red, u_char *green, u_char *blue, u_char *trans) 2890{ 2891 u_char *r; 2892 u_char *g; 2893 u_char *b; 2894 int err; 2895 2896 if (count < 0 || base < 0 || count > 256 || base > 256 || 2897 base + count > 256) 2898 return EINVAL; 2899 2900 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2901 g = r + count; 2902 b = g + count; 2903 err = copyin(red, r, count); 2904 if (!err) 2905 err = copyin(green, g, count); 2906 if (!err) 2907 err = copyin(blue, b, count); 2908 if (!err) 2909 err = vga_load_palette2(adp, base, count, r, g, b); 2910 free(r, M_DEVBUF); 2911 2912 return (err ? ENODEV : 0); 2913} 2914 2915static int 2916vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 2917{ 2918 switch (cmd) { 2919 case FBIO_GETWINORG: /* get frame buffer window origin */ 2920 *(u_int *)arg = 0; 2921 return 0; 2922 2923 case FBIO_SETWINORG: /* set frame buffer window origin */ 2924 return ENODEV; 2925 2926 case FBIO_SETDISPSTART: /* set display start address */ 2927 return (set_display_start(adp, 2928 ((video_display_start_t *)arg)->x, 2929 ((video_display_start_t *)arg)->y) 2930 ? ENODEV : 0); 2931 2932 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */ 2933 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0); 2934 2935 case FBIO_GETPALETTE: /* get color palette */ 2936 return get_palette(adp, ((video_color_palette_t *)arg)->index, 2937 ((video_color_palette_t *)arg)->count, 2938 ((video_color_palette_t *)arg)->red, 2939 ((video_color_palette_t *)arg)->green, 2940 ((video_color_palette_t *)arg)->blue, 2941 ((video_color_palette_t *)arg)->transparent); 2942 2943 case FBIO_SETPALETTE: /* set color palette */ 2944 return set_palette(adp, ((video_color_palette_t *)arg)->index, 2945 ((video_color_palette_t *)arg)->count, 2946 ((video_color_palette_t *)arg)->red, 2947 ((video_color_palette_t *)arg)->green, 2948 ((video_color_palette_t *)arg)->blue, 2949 ((video_color_palette_t *)arg)->transparent); 2950 2951 case FBIOGTYPE: /* get frame buffer type info. */ 2952 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type); 2953 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height; 2954 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width; 2955 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth; 2956 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8)) 2957 ((struct fbtype *)arg)->fb_cmsize = 0; 2958 else 2959 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth; 2960 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size; 2961 return 0; 2962 2963 case FBIOGETCMAP: /* get color palette */ 2964 return get_palette(adp, ((struct fbcmap *)arg)->index, 2965 ((struct fbcmap *)arg)->count, 2966 ((struct fbcmap *)arg)->red, 2967 ((struct fbcmap *)arg)->green, 2968 ((struct fbcmap *)arg)->blue, NULL); 2969 2970 case FBIOPUTCMAP: /* set color palette */ 2971 return set_palette(adp, ((struct fbcmap *)arg)->index, 2972 ((struct fbcmap *)arg)->count, 2973 ((struct fbcmap *)arg)->red, 2974 ((struct fbcmap *)arg)->green, 2975 ((struct fbcmap *)arg)->blue, NULL); 2976 2977 default: 2978 return fb_commonioctl(adp, cmd, arg); 2979 } 2980} 2981 2982static void 2983dump_buffer(u_char *buf, size_t len) 2984{ 2985 int i; 2986 2987 for(i = 0; i < len;) { 2988 printf("%02x ", buf[i]); 2989 if ((++i % 16) == 0) 2990 printf("\n"); 2991 } 2992} 2993 2994/* 2995 * diag(): 2996 * Print some information about the video adapter and video modes, 2997 * with requested level of details. 2998 * 2999 * all adapters 3000 */ 3001static int 3002vga_diag(video_adapter_t *adp, int level) 3003{ 3004 u_char *mp; 3005#if FB_DEBUG > 1 3006 video_info_t info; 3007 int i; 3008#endif 3009 3010 if (!vga_init_done) 3011 return ENXIO; 3012 3013#if FB_DEBUG > 1 3014#ifndef VGA_NO_BIOS 3015 printf("vga: RTC equip. code:0x%02x, DCC code:0x%02x\n", 3016 rtcin(RTC_EQUIPMENT), readb(BIOS_PADDRTOVADDR(0x488))); 3017 printf("vga: CRTC:0x%x, video option:0x%02x, ", 3018 readw(BIOS_PADDRTOVADDR(0x463)), 3019 readb(BIOS_PADDRTOVADDR(0x487))); 3020 printf("rows:%d, cols:%d, font height:%d\n", 3021 readb(BIOS_PADDRTOVADDR(0x44a)), 3022 readb(BIOS_PADDRTOVADDR(0x484)) + 1, 3023 readb(BIOS_PADDRTOVADDR(0x485))); 3024#endif /* VGA_NO_BIOS */ 3025#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 3026 printf("vga: param table EGA/VGA:%p", video_mode_ptr); 3027 printf(", CGA/MDA:%p\n", video_mode_ptr2); 3028 printf("vga: rows_offset:%d\n", rows_offset); 3029#endif 3030#endif /* FB_DEBUG > 1 */ 3031 3032 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level); 3033 3034#if FB_DEBUG > 1 3035 if (adp->va_flags & V_ADP_MODECHANGE) { 3036 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 3037 if (bios_vmode[i].vi_mode == NA) 3038 continue; 3039 if (get_mode_param(bios_vmode[i].vi_mode) == NULL) 3040 continue; 3041 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level); 3042 } 3043 } else { 3044 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */ 3045 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level); 3046 } 3047#endif /* FB_DEBUG > 1 */ 3048 3049 if ((adp->va_type != KD_EGA) && (adp->va_type != KD_VGA)) 3050 return 0; 3051#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 3052 if (video_mode_ptr == NULL) 3053 printf("vga%d: %s: WARNING: video mode switching is not " 3054 "fully supported on this adapter\n", 3055 adp->va_unit, adp->va_name); 3056#endif 3057 if (level <= 0) 3058 return 0; 3059 3060 if (adp->va_type == KD_VGA) { 3061 printf("VGA parameters upon power-up\n"); 3062 dump_buffer(adpstate.regs, sizeof(adpstate.regs)); 3063 printf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode); 3064 dump_buffer(adpstate2.regs, sizeof(adpstate2.regs)); 3065 } 3066 3067 mp = get_mode_param(adp->va_initial_mode); 3068 if (mp == NULL) /* this shouldn't be happening */ 3069 return 0; 3070 printf("EGA/VGA parameters to be used for mode %d\n", adp->va_initial_mode); 3071 dump_buffer(mp, V_MODE_PARAM_SIZE); 3072 3073 return 0; 3074} 3075