vga.c revision 138891
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: head/sys/dev/fb/vga.c 138891 2004-12-15 13:49:25Z ru $"); 33 34#include "opt_vga.h" 35#include "opt_fb.h" 36#include "opt_syscons.h" /* should be removed in the future, XXX */ 37 38#include <sys/param.h> 39#include <sys/systm.h> 40#include <sys/kernel.h> 41#include <sys/conf.h> 42#include <sys/fcntl.h> 43#include <sys/malloc.h> 44#include <sys/fbio.h> 45 46#include <vm/vm.h> 47#include <vm/vm_param.h> 48#include <vm/pmap.h> 49 50#include <machine/md_var.h> 51#if defined(__i386__) || defined(__amd64__) 52#include <machine/pc/bios.h> 53#endif 54#include <machine/bus.h> 55 56#include <dev/fb/fbreg.h> 57#include <dev/fb/vgareg.h> 58 59#include <isa/isareg.h> 60 61#ifndef VGA_DEBUG 62#define VGA_DEBUG 0 63#endif 64 65/* XXX machine/pc/bios.h has got too much i386-specific stuff in it */ 66#ifndef BIOS_PADDRTOVADDR 67#define BIOS_PADDRTOVADDR(x) (x) 68#endif 69 70int 71vga_probe_unit(int unit, video_adapter_t *buf, int flags) 72{ 73 video_adapter_t *adp; 74 video_switch_t *sw; 75 int error; 76 77 sw = vid_get_switch(VGA_DRIVER_NAME); 78 if (sw == NULL) 79 return 0; 80 error = (*sw->probe)(unit, &adp, NULL, flags); 81 if (error) 82 return error; 83 bcopy(adp, buf, sizeof(*buf)); 84 return 0; 85} 86 87int 88vga_attach_unit(int unit, vga_softc_t *sc, int flags) 89{ 90 video_switch_t *sw; 91 int error; 92 93 sw = vid_get_switch(VGA_DRIVER_NAME); 94 if (sw == NULL) 95 return ENXIO; 96 97 error = (*sw->probe)(unit, &sc->adp, NULL, flags); 98 if (error) 99 return error; 100 return (*sw->init)(unit, sc->adp, flags); 101} 102 103/* cdev driver functions */ 104 105#ifdef FB_INSTALL_CDEV 106 107int 108vga_open(struct cdev *dev, vga_softc_t *sc, int flag, int mode, struct thread *td) 109{ 110 if (sc == NULL) 111 return ENXIO; 112 if (mode & (O_CREAT | O_APPEND | O_TRUNC)) 113 return ENODEV; 114 115 return genfbopen(&sc->gensc, sc->adp, flag, mode, td); 116} 117 118int 119vga_close(struct cdev *dev, vga_softc_t *sc, int flag, int mode, struct thread *td) 120{ 121 return genfbclose(&sc->gensc, sc->adp, flag, mode, td); 122} 123 124int 125vga_read(struct cdev *dev, vga_softc_t *sc, struct uio *uio, int flag) 126{ 127 return genfbread(&sc->gensc, sc->adp, uio, flag); 128} 129 130int 131vga_write(struct cdev *dev, vga_softc_t *sc, struct uio *uio, int flag) 132{ 133 return genfbread(&sc->gensc, sc->adp, uio, flag); 134} 135 136int 137vga_ioctl(struct cdev *dev, vga_softc_t *sc, u_long cmd, caddr_t arg, int flag, 138 struct thread *td) 139{ 140 return genfbioctl(&sc->gensc, sc->adp, cmd, arg, flag, td); 141} 142 143int 144vga_mmap(struct cdev *dev, vga_softc_t *sc, vm_offset_t offset, vm_offset_t *paddr, 145 int prot) 146{ 147 return genfbmmap(&sc->gensc, sc->adp, offset, paddr, prot); 148} 149 150#endif /* FB_INSTALL_CDEV */ 151 152/* LOW-LEVEL */ 153 154#include <machine/clock.h> 155#ifdef __i386__ 156#include <machine/pc/vesa.h> 157#endif 158 159#define probe_done(adp) ((adp)->va_flags & V_ADP_PROBED) 160#define init_done(adp) ((adp)->va_flags & V_ADP_INITIALIZED) 161#define config_done(adp) ((adp)->va_flags & V_ADP_REGISTERED) 162 163/* for compatibility with old kernel options */ 164#ifdef SC_ALT_SEQACCESS 165#undef SC_ALT_SEQACCESS 166#undef VGA_ALT_SEQACCESS 167#define VGA_ALT_SEQACCESS 1 168#endif 169 170#ifdef SLOW_VGA 171#undef SLOW_VGA 172#undef VGA_SLOW_IOACCESS 173#define VGA_SLOW_IOACCESS 1 174#endif 175 176/* architecture dependent option */ 177#ifndef __i386__ 178#define VGA_NO_BIOS 1 179#endif 180 181/* this should really be in `rtc.h' */ 182#define RTC_EQUIPMENT 0x14 183 184/* various sizes */ 185#define V_MODE_MAP_SIZE (M_VGA_CG320 + 1) 186#define V_MODE_PARAM_SIZE 64 187 188/* video adapter state buffer */ 189struct adp_state { 190 int sig; 191#define V_STATE_SIG 0x736f6962 192 u_char regs[V_MODE_PARAM_SIZE]; 193}; 194typedef struct adp_state adp_state_t; 195 196/* video adapter information */ 197#define DCC_MONO 0 198#define DCC_CGA40 1 199#define DCC_CGA80 2 200#define DCC_EGAMONO 3 201#define DCC_EGA40 4 202#define DCC_EGA80 5 203 204/* 205 * NOTE: `va_window' should have a virtual address, but is initialized 206 * with a physical address in the following table, as verify_adapter() 207 * will perform address conversion at run-time. 208 */ 209static video_adapter_t adapter_init_value[] = { 210 /* DCC_MONO */ 211 { 0, KD_MONO, "mda", 0, 0, 0, IO_MDA, IO_MDASIZE, MONO_CRTC, 212 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 213 0, 0, 0, 0, 7, 0, }, 214 /* DCC_CGA40 */ 215 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 216 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 217 0, 0, 0, 0, 3, 0, }, 218 /* DCC_CGA80 */ 219 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 220 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 221 0, 0, 0, 0, 3, 0, }, 222 /* DCC_EGAMONO */ 223 { 0, KD_EGA, "ega", 0, 0, 0, IO_MDA, 48, MONO_CRTC, 224 EGA_BUF_BASE, EGA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 225 0, 0, 0, 0, 7, 0, }, 226 /* DCC_EGA40 */ 227 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 228 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 229 0, 0, 0, 0, 3, 0, }, 230 /* DCC_EGA80 */ 231 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 232 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 233 0, 0, 0, 0, 3, 0, }, 234}; 235 236static video_adapter_t biosadapter[2]; 237static int biosadapters = 0; 238 239/* video driver declarations */ 240static int vga_configure(int flags); 241 int (*vga_sub_configure)(int flags); 242#if 0 243static int vga_nop(void); 244#endif 245static int vga_error(void); 246static vi_probe_t vga_probe; 247static vi_init_t vga_init; 248static vi_get_info_t vga_get_info; 249static vi_query_mode_t vga_query_mode; 250static vi_set_mode_t vga_set_mode; 251static vi_save_font_t vga_save_font; 252static vi_load_font_t vga_load_font; 253static vi_show_font_t vga_show_font; 254static vi_save_palette_t vga_save_palette; 255static vi_load_palette_t vga_load_palette; 256static vi_set_border_t vga_set_border; 257static vi_save_state_t vga_save_state; 258static vi_load_state_t vga_load_state; 259static vi_set_win_org_t vga_set_origin; 260static vi_read_hw_cursor_t vga_read_hw_cursor; 261static vi_set_hw_cursor_t vga_set_hw_cursor; 262static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape; 263static vi_blank_display_t vga_blank_display; 264static vi_mmap_t vga_mmap_buf; 265static vi_ioctl_t vga_dev_ioctl; 266#ifndef VGA_NO_MODE_CHANGE 267static vi_clear_t vga_clear; 268static vi_fill_rect_t vga_fill_rect; 269static vi_bitblt_t vga_bitblt; 270#else /* VGA_NO_MODE_CHANGE */ 271#define vga_clear (vi_clear_t *)vga_error 272#define vga_fill_rect (vi_fill_rect_t *)vga_error 273#define vga_bitblt (vi_bitblt_t *)vga_error 274#endif 275static vi_diag_t vga_diag; 276 277static video_switch_t vgavidsw = { 278 vga_probe, 279 vga_init, 280 vga_get_info, 281 vga_query_mode, 282 vga_set_mode, 283 vga_save_font, 284 vga_load_font, 285 vga_show_font, 286 vga_save_palette, 287 vga_load_palette, 288 vga_set_border, 289 vga_save_state, 290 vga_load_state, 291 vga_set_origin, 292 vga_read_hw_cursor, 293 vga_set_hw_cursor, 294 vga_set_hw_cursor_shape, 295 vga_blank_display, 296 vga_mmap_buf, 297 vga_dev_ioctl, 298 vga_clear, 299 vga_fill_rect, 300 vga_bitblt, 301 vga_error, 302 vga_error, 303 vga_diag, 304}; 305 306VIDEO_DRIVER(mda, vgavidsw, NULL); 307VIDEO_DRIVER(cga, vgavidsw, NULL); 308VIDEO_DRIVER(ega, vgavidsw, NULL); 309VIDEO_DRIVER(vga, vgavidsw, vga_configure); 310 311/* VGA BIOS standard video modes */ 312#define EOT (-1) 313#define NA (-2) 314 315static video_info_t bios_vmode[] = { 316 /* CGA */ 317 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1, 318 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 319 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1, 320 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 321 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1, 322 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 323 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1, 324 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 325 /* EGA */ 326 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1, 327 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 328 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1, 329 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 330 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1, 331 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 332 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1, 333 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 334 /* VGA */ 335 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1, 336 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 337 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1, 338 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 339 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1, 340 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 341 /* MDA */ 342 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1, 343 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 344 /* EGA */ 345 { M_ENH_B80x43, 0, 80, 43, 8, 8, 2, 1, 346 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 347 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1, 348 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 349 /* VGA */ 350 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1, 351 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 352 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1, 353 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 354 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1, 355 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 356 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1, 357 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 358 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1, 359 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 360 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1, 361 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 362 363#ifndef VGA_NO_MODE_CHANGE 364 365#ifdef VGA_WIDTH90 366 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1, 367 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 368 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1, 369 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 370 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1, 371 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 372 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1, 373 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 374 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1, 375 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 376 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1, 377 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 378 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1, 379 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 380 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1, 381 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 382 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1, 383 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 384 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1, 385 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 386#endif /* VGA_WIDTH90 */ 387 388 /* CGA */ 389 { M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 390 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 391 { M_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 392 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 393 { M_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1, 394 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 395 /* EGA */ 396 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4, 397 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 398 V_INFO_MM_PLANAR }, 399 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4, 400 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 401 V_INFO_MM_PLANAR }, 402 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 403 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 , 404 V_INFO_MM_PLANAR }, 405 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 406 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 407 V_INFO_MM_PLANAR }, 408 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2, 409 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 410 V_INFO_MM_PLANAR }, 411 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 412 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 413 V_INFO_MM_PLANAR }, 414 /* VGA */ 415 { M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 416 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 417 V_INFO_MM_PLANAR }, 418 { M_CG640x480, 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_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1, 422 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 423 V_INFO_MM_PACKED, 1 }, 424 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 4, 425 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 426 V_INFO_MM_VGAX, 1 }, 427#endif /* VGA_NO_MODE_CHANGE */ 428 429 { EOT }, 430}; 431 432static int vga_init_done = FALSE; 433#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 434static u_char *video_mode_ptr = NULL; /* EGA/VGA */ 435static u_char *video_mode_ptr2 = NULL; /* CGA/MDA */ 436#endif 437static u_char *mode_map[V_MODE_MAP_SIZE]; 438static adp_state_t adpstate; 439static adp_state_t adpstate2; 440static int rows_offset = 1; 441 442/* local macros and functions */ 443#define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 444 445#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 446static void map_mode_table(u_char *map[], u_char *table, int max); 447#endif 448static void clear_mode_map(video_adapter_t *adp, u_char *map[], int max, 449 int color); 450#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 451static int map_mode_num(int mode); 452#endif 453static int map_gen_mode_num(int type, int color, int mode); 454static int map_bios_mode_num(int type, int color, int bios_mode); 455static u_char *get_mode_param(int mode); 456#ifndef VGA_NO_BIOS 457static void fill_adapter_param(int code, video_adapter_t *adp); 458#endif 459static int verify_adapter(video_adapter_t *adp); 460static void update_adapter_info(video_adapter_t *adp, video_info_t *info); 461#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 462#define COMP_IDENTICAL 0 463#define COMP_SIMILAR 1 464#define COMP_DIFFERENT 2 465static int comp_adpregs(u_char *buf1, u_char *buf2); 466#endif 467static int probe_adapters(void); 468static int set_line_length(video_adapter_t *adp, int pixel); 469static int set_display_start(video_adapter_t *adp, int x, int y); 470 471#ifndef VGA_NO_MODE_CHANGE 472#ifdef VGA_WIDTH90 473static void set_width90(adp_state_t *params); 474#endif 475#endif /* !VGA_NO_MODE_CHANGE */ 476 477#ifndef VGA_NO_FONT_LOADING 478#define PARAM_BUFSIZE 6 479static void set_font_mode(video_adapter_t *adp, u_char *buf); 480static void set_normal_mode(video_adapter_t *adp, u_char *buf); 481#endif 482 483#ifndef VGA_NO_MODE_CHANGE 484static void filll_io(int val, vm_offset_t d, size_t size); 485static void planar_fill(video_adapter_t *adp, int val); 486static void packed_fill(video_adapter_t *adp, int val); 487static void direct_fill(video_adapter_t *adp, int val); 488#ifdef notyet 489static void planar_fill_rect(video_adapter_t *adp, int val, int x, int y, 490 int cx, int cy); 491static void packed_fill_rect(video_adapter_t *adp, int val, int x, int y, 492 int cx, int cy); 493static void direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, 494 int cx, int cy); 495static void direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, 496 int cx, int cy); 497static void direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, 498 int cx, int cy); 499#endif /* notyet */ 500#endif /* !VGA_NO_MODE_CHANGE */ 501 502static void dump_buffer(u_char *buf, size_t len); 503 504#define ISMAPPED(pa, width) \ 505 (((pa) <= (u_long)0x1000 - (width)) \ 506 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width))) 507 508#define prologue(adp, flag, err) \ 509 if (!vga_init_done || !((adp)->va_flags & (flag))) \ 510 return (err) 511 512/* a backdoor for the console driver */ 513static int 514vga_configure(int flags) 515{ 516 int i; 517 518 probe_adapters(); 519 for (i = 0; i < biosadapters; ++i) { 520 if (!probe_done(&biosadapter[i])) 521 continue; 522 biosadapter[i].va_flags |= V_ADP_INITIALIZED; 523 if (!config_done(&biosadapter[i])) { 524 if (vid_register(&biosadapter[i]) < 0) 525 continue; 526 biosadapter[i].va_flags |= V_ADP_REGISTERED; 527 } 528 } 529 if (vga_sub_configure != NULL) 530 (*vga_sub_configure)(flags); 531 532 return biosadapters; 533} 534 535/* local subroutines */ 536 537#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 538/* construct the mode parameter map */ 539static void 540map_mode_table(u_char *map[], u_char *table, int max) 541{ 542 int i; 543 544 for(i = 0; i < max; ++i) 545 map[i] = table + i*V_MODE_PARAM_SIZE; 546 for(; i < V_MODE_MAP_SIZE; ++i) 547 map[i] = NULL; 548} 549#endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 550 551static void 552clear_mode_map(video_adapter_t *adp, u_char *map[], int max, int color) 553{ 554 video_info_t info; 555 int i; 556 557 /* 558 * NOTE: we don't touch `bios_vmode[]' because it is shared 559 * by all adapters. 560 */ 561 for(i = 0; i < max; ++i) { 562 if (vga_get_info(adp, i, &info)) 563 continue; 564 if ((info.vi_flags & V_INFO_COLOR) != color) 565 map[i] = NULL; 566 } 567} 568 569#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 570/* map the non-standard video mode to a known mode number */ 571static int 572map_mode_num(int mode) 573{ 574 static struct { 575 int from; 576 int to; 577 } mode_map[] = { 578 { M_ENH_B80x43, M_ENH_B80x25 }, 579 { M_ENH_C80x43, M_ENH_C80x25 }, 580 { M_VGA_M80x30, M_VGA_M80x25 }, 581 { M_VGA_C80x30, M_VGA_C80x25 }, 582 { M_VGA_M80x50, M_VGA_M80x25 }, 583 { M_VGA_C80x50, M_VGA_C80x25 }, 584 { M_VGA_M80x60, M_VGA_M80x25 }, 585 { M_VGA_C80x60, M_VGA_C80x25 }, 586#ifdef VGA_WIDTH90 587 { M_VGA_M90x25, M_VGA_M80x25 }, 588 { M_VGA_C90x25, M_VGA_C80x25 }, 589 { M_VGA_M90x30, M_VGA_M80x25 }, 590 { M_VGA_C90x30, M_VGA_C80x25 }, 591 { M_VGA_M90x43, M_ENH_B80x25 }, 592 { M_VGA_C90x43, M_ENH_C80x25 }, 593 { M_VGA_M90x50, M_VGA_M80x25 }, 594 { M_VGA_C90x50, M_VGA_C80x25 }, 595 { M_VGA_M90x60, M_VGA_M80x25 }, 596 { M_VGA_C90x60, M_VGA_C80x25 }, 597#endif 598 { M_VGA_MODEX, M_VGA_CG320 }, 599 }; 600 int i; 601 602 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 603 if (mode_map[i].from == mode) 604 return mode_map[i].to; 605 } 606 return mode; 607} 608#endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 609 610/* map a generic video mode to a known mode number */ 611static int 612map_gen_mode_num(int type, int color, int mode) 613{ 614 static struct { 615 int from; 616 int to_color; 617 int to_mono; 618 } mode_map[] = { 619 { M_TEXT_80x30, M_VGA_C80x30, M_VGA_M80x30, }, 620 { M_TEXT_80x43, M_ENH_C80x43, M_ENH_B80x43, }, 621 { M_TEXT_80x50, M_VGA_C80x50, M_VGA_M80x50, }, 622 { M_TEXT_80x60, M_VGA_C80x60, M_VGA_M80x60, }, 623 }; 624 int i; 625 626 if (mode == M_TEXT_80x25) { 627 switch (type) { 628 629 case KD_VGA: 630 if (color) 631 return M_VGA_C80x25; 632 else 633 return M_VGA_M80x25; 634 break; 635 636 case KD_EGA: 637 if (color) 638 return M_ENH_C80x25; 639 else 640 return M_EGAMONO80x25; 641 break; 642 643 case KD_CGA: 644 return M_C80x25; 645 646 case KD_MONO: 647 case KD_HERCULES: 648 return M_EGAMONO80x25; /* XXX: this name is confusing */ 649 650 default: 651 return -1; 652 } 653 } 654 655 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 656 if (mode_map[i].from == mode) 657 return ((color) ? mode_map[i].to_color : mode_map[i].to_mono); 658 } 659 return mode; 660} 661 662/* turn the BIOS video number into our video mode number */ 663static int 664map_bios_mode_num(int type, int color, int bios_mode) 665{ 666 static int cga_modes[7] = { 667 M_B40x25, M_C40x25, /* 0, 1 */ 668 M_B80x25, M_C80x25, /* 2, 3 */ 669 M_BG320, M_CG320, 670 M_BG640, 671 }; 672 static int ega_modes[17] = { 673 M_ENH_B40x25, M_ENH_C40x25, /* 0, 1 */ 674 M_ENH_B80x25, M_ENH_C80x25, /* 2, 3 */ 675 M_BG320, M_CG320, 676 M_BG640, 677 M_EGAMONO80x25, /* 7 */ 678 8, 9, 10, 11, 12, 679 M_CG320_D, 680 M_CG640_E, 681 M_ENHMONOAPA2, /* XXX: video momery > 64K */ 682 M_ENH_CG640, /* XXX: video momery > 64K */ 683 }; 684 static int vga_modes[20] = { 685 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */ 686 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */ 687 M_BG320, M_CG320, 688 M_BG640, 689 M_VGA_M80x25, /* 7 */ 690 8, 9, 10, 11, 12, 691 M_CG320_D, 692 M_CG640_E, 693 M_ENHMONOAPA2, 694 M_ENH_CG640, 695 M_BG640x480, M_CG640x480, 696 M_VGA_CG320, 697 }; 698 699 switch (type) { 700 701 case KD_VGA: 702 if (bios_mode < sizeof(vga_modes)/sizeof(vga_modes[0])) 703 return vga_modes[bios_mode]; 704 else if (color) 705 return M_VGA_C80x25; 706 else 707 return M_VGA_M80x25; 708 break; 709 710 case KD_EGA: 711 if (bios_mode < sizeof(ega_modes)/sizeof(ega_modes[0])) 712 return ega_modes[bios_mode]; 713 else if (color) 714 return M_ENH_C80x25; 715 else 716 return M_EGAMONO80x25; 717 break; 718 719 case KD_CGA: 720 if (bios_mode < sizeof(cga_modes)/sizeof(cga_modes[0])) 721 return cga_modes[bios_mode]; 722 else 723 return M_C80x25; 724 break; 725 726 case KD_MONO: 727 case KD_HERCULES: 728 return M_EGAMONO80x25; /* XXX: this name is confusing */ 729 730 default: 731 break; 732 } 733 return -1; 734} 735 736/* look up a parameter table entry */ 737static u_char 738*get_mode_param(int mode) 739{ 740#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 741 if (mode >= V_MODE_MAP_SIZE) 742 mode = map_mode_num(mode); 743#endif 744 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE)) 745 return mode_map[mode]; 746 else 747 return NULL; 748} 749 750#ifndef VGA_NO_BIOS 751static void 752fill_adapter_param(int code, video_adapter_t *adp) 753{ 754 static struct { 755 int primary; 756 int secondary; 757 } dcc[] = { 758 { DCC_MONO, DCC_EGA40 /* CGA monitor */ }, 759 { DCC_MONO, DCC_EGA80 /* CGA monitor */ }, 760 { DCC_MONO, DCC_EGA80 }, 761 { DCC_MONO, DCC_EGA80 }, 762 { DCC_CGA40, DCC_EGAMONO }, 763 { DCC_CGA80, DCC_EGAMONO }, 764 { DCC_EGA40 /* CGA monitor */, DCC_MONO}, 765 { DCC_EGA80 /* CGA monitor */, DCC_MONO}, 766 { DCC_EGA80, DCC_MONO }, 767 { DCC_EGA80, DCC_MONO }, 768 { DCC_EGAMONO, DCC_CGA40 }, 769 { DCC_EGAMONO, DCC_CGA80 }, 770 }; 771 772 if ((code < 0) || (code >= sizeof(dcc)/sizeof(dcc[0]))) { 773 adp[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 774 adp[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 775 } else { 776 adp[V_ADP_PRIMARY] = adapter_init_value[dcc[code].primary]; 777 adp[V_ADP_SECONDARY] = adapter_init_value[dcc[code].secondary]; 778 } 779} 780#endif /* VGA_NO_BIOS */ 781 782static int 783verify_adapter(video_adapter_t *adp) 784{ 785 vm_offset_t buf; 786 u_int16_t v; 787#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 788 u_int32_t p; 789#endif 790 791 buf = BIOS_PADDRTOVADDR(adp->va_window); 792 v = readw(buf); 793 writew(buf, 0xA55A); 794 if (readw(buf) != 0xA55A) 795 return ENXIO; 796 writew(buf, v); 797 798 switch (adp->va_type) { 799 800 case KD_EGA: 801 outb(adp->va_crtc_addr, 7); 802 if (inb(adp->va_crtc_addr) == 7) { 803 adp->va_type = KD_VGA; 804 adp->va_name = "vga"; 805 adp->va_flags |= V_ADP_STATESAVE | V_ADP_PALETTE; 806 } 807 adp->va_flags |= V_ADP_STATELOAD | V_ADP_BORDER; 808 /* the color adapter may be in the 40x25 mode... XXX */ 809 810#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 811 /* get the BIOS video mode pointer */ 812 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8); 813 p = BIOS_SADDRTOLADDR(p); 814 if (ISMAPPED(p, sizeof(u_int32_t))) { 815 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p); 816 p = BIOS_SADDRTOLADDR(p); 817 if (ISMAPPED(p, V_MODE_PARAM_SIZE)) 818 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p); 819 } 820#endif 821 break; 822 823 case KD_CGA: 824 adp->va_flags |= V_ADP_COLOR | V_ADP_BORDER; 825 /* may be in the 40x25 mode... XXX */ 826#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 827 /* get the BIOS video mode pointer */ 828 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 829 p = BIOS_SADDRTOLADDR(p); 830 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 831#endif 832 break; 833 834 case KD_MONO: 835#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 836 /* get the BIOS video mode pointer */ 837 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 838 p = BIOS_SADDRTOLADDR(p); 839 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 840#endif 841 break; 842 } 843 844 return 0; 845} 846 847static void 848update_adapter_info(video_adapter_t *adp, video_info_t *info) 849{ 850 adp->va_flags &= ~V_ADP_COLOR; 851 adp->va_flags |= 852 (info->vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; 853 adp->va_crtc_addr = 854 (adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; 855 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window); 856 adp->va_window_size = info->vi_window_size; 857 adp->va_window_gran = info->vi_window_gran; 858 adp->va_window_orig = 0; 859 /* XXX */ 860 adp->va_buffer = info->vi_buffer; 861 adp->va_buffer_size = info->vi_buffer_size; 862 if (info->vi_mem_model == V_INFO_MM_VGAX) { 863 adp->va_line_width = info->vi_width/2; 864 } else if (info->vi_flags & V_INFO_GRAPHICS) { 865 switch (info->vi_depth/info->vi_planes) { 866 case 1: 867 adp->va_line_width = info->vi_width/8; 868 break; 869 case 2: 870 adp->va_line_width = info->vi_width/4; 871 break; 872 case 4: 873 adp->va_line_width = info->vi_width/2; 874 break; 875 case 8: 876 default: /* shouldn't happen */ 877 adp->va_line_width = info->vi_width; 878 break; 879 } 880 } else { 881 adp->va_line_width = info->vi_width; 882 } 883 adp->va_disp_start.x = 0; 884 adp->va_disp_start.y = 0; 885 bcopy(info, &adp->va_info, sizeof(adp->va_info)); 886} 887 888#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 889/* compare two parameter table entries */ 890static int 891comp_adpregs(u_char *buf1, u_char *buf2) 892{ 893 static struct { 894 u_char mask; 895 } params[V_MODE_PARAM_SIZE] = { 896 {0xff}, {0x00}, {0xff}, /* COLS}, ROWS}, POINTS */ 897 {0x00}, {0x00}, /* page length */ 898 {0xfe}, {0xff}, {0xff}, {0xff}, /* sequencer registers */ 899 {0xf3}, /* misc register */ 900 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, /* CRTC */ 901 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, 902 {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, 903 {0x00}, {0xff}, {0x7f}, {0xff}, {0xff}, 904 {0x7f}, {0xff}, {0xff}, {0xef}, {0xff}, 905 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* attribute controller regs */ 906 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 907 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 908 {0xff}, {0xff}, {0xff}, {0xff}, {0xf0}, 909 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* GDC register */ 910 {0xff}, {0xff}, {0xff}, {0xff}, 911 }; 912 int identical = TRUE; 913 int i; 914 915 if ((buf1 == NULL) || (buf2 == NULL)) 916 return COMP_DIFFERENT; 917 918 for (i = 0; i < sizeof(params)/sizeof(params[0]); ++i) { 919 if (params[i].mask == 0) /* don't care */ 920 continue; 921 if ((buf1[i] & params[i].mask) != (buf2[i] & params[i].mask)) 922 return COMP_DIFFERENT; 923 if (buf1[i] != buf2[i]) 924 identical = FALSE; 925 } 926 return (identical) ? COMP_IDENTICAL : COMP_SIMILAR; 927} 928#endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 929 930/* probe video adapters and return the number of detected adapters */ 931static int 932probe_adapters(void) 933{ 934 video_adapter_t *adp; 935 video_info_t info; 936#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 937 u_char *mp; 938#endif 939 int i; 940 941 /* do this test only once */ 942 if (vga_init_done) 943 return biosadapters; 944 vga_init_done = TRUE; 945 946 /* 947 * Locate display adapters. 948 * The AT architecture supports upto two adapters. `syscons' allows 949 * the following combinations of adapters: 950 * 1) MDA + CGA 951 * 2) MDA + EGA/VGA color 952 * 3) CGA + EGA/VGA mono 953 * Note that `syscons' doesn't bother with MCGA as it is only 954 * avaiable for low end PS/2 models which has 80286 or earlier CPUs, 955 * thus, they are not running FreeBSD! 956 * When there are two adapaters in the system, one becomes `primary' 957 * and the other `secondary'. The EGA adapter has a set of DIP 958 * switches on board for this information and the EGA BIOS copies 959 * it in the BIOS data area BIOSDATA_VIDEOSWITCH (40:88). 960 * The VGA BIOS has more sophisticated mechanism and has this 961 * information in BIOSDATA_DCCINDEX (40:8a), but it also maintains 962 * compatibility with the EGA BIOS by updating BIOSDATA_VIDEOSWITCH. 963 */ 964 965 /* 966 * Check rtc and BIOS data area. 967 * XXX: we don't use BIOSDATA_EQUIPMENT, since it is not a dead 968 * copy of RTC_EQUIPMENT. Bits 4 and 5 of ETC_EQUIPMENT are 969 * zeros for EGA and VGA. However, the EGA/VGA BIOS sets 970 * these bits in BIOSDATA_EQUIPMENT according to the monitor 971 * type detected. 972 */ 973#ifndef VGA_NO_BIOS 974 if (*(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8)) { 975 /* EGA/VGA BIOS is present */ 976 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 977 biosadapter); 978 } else { 979 switch ((rtcin(RTC_EQUIPMENT) >> 4) & 3) { /* bit 4 and 5 */ 980 case 0: 981 /* EGA/VGA: shouldn't be happening */ 982 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 983 biosadapter); 984 break; 985 case 1: 986 /* CGA 40x25 */ 987 /* FIXME: switch to the 80x25 mode? XXX */ 988 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA40]; 989 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 990 break; 991 case 2: 992 /* CGA 80x25 */ 993 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA80]; 994 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 995 break; 996 case 3: 997 /* MDA */ 998 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 999 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 1000 break; 1001 } 1002 } 1003#else 1004 /* assume EGA/VGA? XXX */ 1005 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_EGA80]; 1006 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 1007#endif /* VGA_NO_BIOS */ 1008 1009 biosadapters = 0; 1010 if (verify_adapter(&biosadapter[V_ADP_SECONDARY]) == 0) { 1011 ++biosadapters; 1012 biosadapter[V_ADP_SECONDARY].va_flags |= V_ADP_PROBED; 1013 biosadapter[V_ADP_SECONDARY].va_mode = 1014 biosadapter[V_ADP_SECONDARY].va_initial_mode = 1015 map_bios_mode_num(biosadapter[V_ADP_SECONDARY].va_type, 1016 biosadapter[V_ADP_SECONDARY].va_flags 1017 & V_ADP_COLOR, 1018 biosadapter[V_ADP_SECONDARY].va_initial_bios_mode); 1019 } else { 1020 biosadapter[V_ADP_SECONDARY].va_type = -1; 1021 } 1022 if (verify_adapter(&biosadapter[V_ADP_PRIMARY]) == 0) { 1023 ++biosadapters; 1024 biosadapter[V_ADP_PRIMARY].va_flags |= V_ADP_PROBED; 1025#ifndef VGA_NO_BIOS 1026 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 1027 readb(BIOS_PADDRTOVADDR(0x449)); 1028#else 1029 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 3; /* XXX */ 1030#endif 1031 biosadapter[V_ADP_PRIMARY].va_mode = 1032 biosadapter[V_ADP_PRIMARY].va_initial_mode = 1033 map_bios_mode_num(biosadapter[V_ADP_PRIMARY].va_type, 1034 biosadapter[V_ADP_PRIMARY].va_flags & V_ADP_COLOR, 1035 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode); 1036 } else { 1037 biosadapter[V_ADP_PRIMARY] = biosadapter[V_ADP_SECONDARY]; 1038 biosadapter[V_ADP_SECONDARY].va_type = -1; 1039 } 1040 if (biosadapters == 0) 1041 return biosadapters; 1042 biosadapter[V_ADP_PRIMARY].va_unit = V_ADP_PRIMARY; 1043 biosadapter[V_ADP_SECONDARY].va_unit = V_ADP_SECONDARY; 1044 1045#if 0 /* we don't need these... */ 1046 fb_init_struct(&biosadapter[V_ADP_PRIMARY], ...); 1047 fb_init_struct(&biosadapter[V_ADP_SECONDARY], ...); 1048#endif 1049 1050#if notyet 1051 /* 1052 * We cannot have two video adapter of the same type; there must be 1053 * only one of color or mono adapter, or one each of them. 1054 */ 1055 if (biosadapters > 1) { 1056 if (!((biosadapter[0].va_flags ^ biosadapter[1].va_flags) 1057 & V_ADP_COLOR)) 1058 /* we have two mono or color adapters!! */ 1059 return (biosadapters = 0); 1060 } 1061#endif 1062 1063 /* 1064 * Ensure a zero start address. The registers are w/o 1065 * for old hardware so it's too hard to relocate the active screen 1066 * memory. 1067 * This must be done before vga_save_state() for VGA. 1068 */ 1069 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 12); 1070 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1071 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 13); 1072 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1073 1074 /* the video mode parameter table in EGA/VGA BIOS */ 1075 /* NOTE: there can be only one EGA/VGA, wheather color or mono, 1076 * recognized by the video BIOS. 1077 */ 1078 if ((biosadapter[V_ADP_PRIMARY].va_type == KD_EGA) || 1079 (biosadapter[V_ADP_PRIMARY].va_type == KD_VGA)) { 1080 adp = &biosadapter[V_ADP_PRIMARY]; 1081 } else if ((biosadapter[V_ADP_SECONDARY].va_type == KD_EGA) || 1082 (biosadapter[V_ADP_SECONDARY].va_type == KD_VGA)) { 1083 adp = &biosadapter[V_ADP_SECONDARY]; 1084 } else { 1085 adp = NULL; 1086 } 1087 bzero(mode_map, sizeof(mode_map)); 1088 if (adp != NULL) { 1089 if (adp->va_type == KD_VGA) { 1090 vga_save_state(adp, &adpstate, sizeof(adpstate)); 1091#if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1092 mode_map[adp->va_initial_mode] = adpstate.regs; 1093 rows_offset = 1; 1094#else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1095 if (video_mode_ptr == NULL) { 1096 mode_map[adp->va_initial_mode] = adpstate.regs; 1097 rows_offset = 1; 1098 } else { 1099 /* discard the table if we are not familiar with it... */ 1100 map_mode_table(mode_map, video_mode_ptr, M_VGA_CG320 + 1); 1101 mp = get_mode_param(adp->va_initial_mode); 1102 if (mp != NULL) 1103 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs)); 1104 switch (comp_adpregs(adpstate.regs, mp)) { 1105 case COMP_IDENTICAL: 1106 /* 1107 * OK, this parameter table looks reasonably familiar 1108 * to us... 1109 */ 1110 /* 1111 * This is a kludge for Toshiba DynaBook SS433 1112 * whose BIOS video mode table entry has the actual # 1113 * of rows at the offset 1; BIOSes from other 1114 * manufacturers store the # of rows - 1 there. XXX 1115 */ 1116 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1117 break; 1118 1119 case COMP_SIMILAR: 1120 /* 1121 * Not exactly the same, but similar enough to be 1122 * trusted. However, use the saved register values 1123 * for the initial mode and other modes which are 1124 * based on the initial mode. 1125 */ 1126 mode_map[adp->va_initial_mode] = adpstate.regs; 1127 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1128 adpstate.regs[1] -= rows_offset - 1; 1129 break; 1130 1131 case COMP_DIFFERENT: 1132 default: 1133 /* 1134 * Don't use the paramter table in BIOS. It doesn't 1135 * look familiar to us. Video mode switching is allowed 1136 * only if the new mode is the same as or based on 1137 * the initial mode. 1138 */ 1139 video_mode_ptr = NULL; 1140 bzero(mode_map, sizeof(mode_map)); 1141 mode_map[adp->va_initial_mode] = adpstate.regs; 1142 rows_offset = 1; 1143 break; 1144 } 1145 } 1146#endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1147 1148#ifndef VGA_NO_MODE_CHANGE 1149 adp->va_flags |= V_ADP_MODECHANGE; 1150#endif 1151#ifndef VGA_NO_FONT_LOADING 1152 adp->va_flags |= V_ADP_FONT; 1153#endif 1154 } else if (adp->va_type == KD_EGA) { 1155#if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1156 rows_offset = 1; 1157#else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1158 if (video_mode_ptr == NULL) { 1159 rows_offset = 1; 1160 } else { 1161 map_mode_table(mode_map, video_mode_ptr, M_ENH_C80x25 + 1); 1162 /* XXX how can one validate the EGA table... */ 1163 mp = get_mode_param(adp->va_initial_mode); 1164 if (mp != NULL) { 1165 adp->va_flags |= V_ADP_MODECHANGE; 1166#ifndef VGA_NO_FONT_LOADING 1167 adp->va_flags |= V_ADP_FONT; 1168#endif 1169 rows_offset = 1; 1170 } else { 1171 /* 1172 * This is serious. We will not be able to switch video 1173 * modes at all... 1174 */ 1175 video_mode_ptr = NULL; 1176 bzero(mode_map, sizeof(mode_map)); 1177 rows_offset = 1; 1178 } 1179 } 1180#endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1181 } 1182 } 1183 1184 /* remove conflicting modes if we have more than one adapter */ 1185 if (biosadapters > 0) { 1186 for (i = 0; i < biosadapters; ++i) { 1187 if (!(biosadapter[i].va_flags & V_ADP_MODECHANGE)) 1188 continue; 1189 clear_mode_map(&biosadapter[i], mode_map, M_VGA_CG320 + 1, 1190 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1191 V_INFO_COLOR : 0); 1192 if ((biosadapter[i].va_type == KD_VGA) 1193 || (biosadapter[i].va_type == KD_EGA)) { 1194 biosadapter[i].va_io_base = 1195 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1196 IO_VGA : IO_MDA; 1197 biosadapter[i].va_io_size = 32; 1198 } 1199 } 1200 } 1201 1202 /* buffer address */ 1203 vga_get_info(&biosadapter[V_ADP_PRIMARY], 1204 biosadapter[V_ADP_PRIMARY].va_initial_mode, &info); 1205 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1206 update_adapter_info(&biosadapter[V_ADP_PRIMARY], &info); 1207 1208 if (biosadapters > 1) { 1209 vga_get_info(&biosadapter[V_ADP_SECONDARY], 1210 biosadapter[V_ADP_SECONDARY].va_initial_mode, &info); 1211 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1212 update_adapter_info(&biosadapter[V_ADP_SECONDARY], &info); 1213 } 1214 1215 /* 1216 * XXX: we should verify the following values for the primary adapter... 1217 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463); 1218 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02) 1219 * ? 0 : V_ADP_COLOR; 1220 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a); 1221 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484); 1222 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485); 1223 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c); 1224 */ 1225 1226 return biosadapters; 1227} 1228 1229/* set the scan line length in pixel */ 1230static int 1231set_line_length(video_adapter_t *adp, int pixel) 1232{ 1233 u_char *mp; 1234 int ppw; /* pixels per word */ 1235 int bpl; /* bytes per line */ 1236 int count; 1237 1238 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1239 return ENODEV; 1240 mp = get_mode_param(adp->va_mode); 1241 if (mp == NULL) 1242 return EINVAL; 1243 1244 switch (adp->va_info.vi_mem_model) { 1245 case V_INFO_MM_PLANAR: 1246 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1247 count = (pixel + ppw - 1)/ppw/2; 1248 bpl = ((pixel + ppw - 1)/ppw/2)*4; 1249 break; 1250 case V_INFO_MM_PACKED: 1251 count = (pixel + 7)/8; 1252 bpl = ((pixel + 7)/8)*8; 1253 break; 1254 case V_INFO_MM_TEXT: 1255 count = (pixel + 7)/8; /* columns */ 1256 bpl = (pixel + 7)/8; /* columns */ 1257 break; 1258 default: 1259 return ENODEV; 1260 } 1261 1262 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */ 1263 count *= 2; /* byte mode */ 1264 outb(adp->va_crtc_addr, 0x13); 1265 outb(adp->va_crtc_addr + 1, count); 1266 adp->va_line_width = bpl; 1267 1268 return 0; 1269} 1270 1271static int 1272set_display_start(video_adapter_t *adp, int x, int y) 1273{ 1274 int off; /* byte offset (graphics mode)/word offset (text mode) */ 1275 int poff; /* pixel offset */ 1276 int roff; /* row offset */ 1277 int ppb; /* pixels per byte */ 1278 1279 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1280 x &= ~7; 1281 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) { 1282 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1283 off = y*adp->va_line_width + x/ppb; 1284 roff = 0; 1285 poff = x%ppb; 1286 } else { 1287 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1288 outb(TSIDX, 1); 1289 if (inb(TSREG) & 1) 1290 ppb = 9; 1291 else 1292 ppb = 8; 1293 } else { 1294 ppb = 8; 1295 } 1296 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb; 1297 roff = y%adp->va_info.vi_cheight; 1298 /* FIXME: is this correct? XXX */ 1299 if (ppb == 8) 1300 poff = x%ppb; 1301 else 1302 poff = (x + 8)%ppb; 1303 } 1304 1305 /* start address */ 1306 outb(adp->va_crtc_addr, 0xc); /* high */ 1307 outb(adp->va_crtc_addr + 1, off >> 8); 1308 outb(adp->va_crtc_addr, 0xd); /* low */ 1309 outb(adp->va_crtc_addr + 1, off & 0xff); 1310 1311 /* horizontal pel pan */ 1312 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1313 inb(adp->va_crtc_addr + 6); 1314 outb(ATC, 0x13 | 0x20); 1315 outb(ATC, poff); 1316 inb(adp->va_crtc_addr + 6); 1317 outb(ATC, 0x20); 1318 } 1319 1320 /* preset raw scan */ 1321 outb(adp->va_crtc_addr, 8); 1322 outb(adp->va_crtc_addr + 1, roff); 1323 1324 adp->va_disp_start.x = x; 1325 adp->va_disp_start.y = y; 1326 return 0; 1327} 1328 1329#ifndef VGA_NO_MODE_CHANGE 1330#if defined(__i386__) || defined(__amd64__) /* XXX */ 1331static void 1332fill(int val, void *d, size_t size) 1333{ 1334 u_char *p = d; 1335 1336 while (size-- > 0) 1337 *p++ = val; 1338} 1339#endif /* __i386__ */ 1340 1341static void 1342filll_io(int val, vm_offset_t d, size_t size) 1343{ 1344 while (size-- > 0) { 1345 writel(d, val); 1346 d += sizeof(u_int32_t); 1347 } 1348} 1349#endif /* !VGA_NO_MODE_CHANGE */ 1350 1351/* entry points */ 1352 1353#if 0 1354static int 1355vga_nop(void) 1356{ 1357 return 0; 1358} 1359#endif 1360 1361static int 1362vga_error(void) 1363{ 1364 return ENODEV; 1365} 1366 1367static int 1368vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 1369{ 1370 probe_adapters(); 1371 if (unit >= biosadapters) 1372 return ENXIO; 1373 1374 *adpp = &biosadapter[unit]; 1375 1376 return 0; 1377} 1378 1379static int 1380vga_init(int unit, video_adapter_t *adp, int flags) 1381{ 1382 if ((unit >= biosadapters) || (adp == NULL) || !probe_done(adp)) 1383 return ENXIO; 1384 1385 if (!init_done(adp)) { 1386 /* nothing to do really... */ 1387 adp->va_flags |= V_ADP_INITIALIZED; 1388 } 1389 1390 if (!config_done(adp)) { 1391 if (vid_register(adp) < 0) 1392 return ENXIO; 1393 adp->va_flags |= V_ADP_REGISTERED; 1394 } 1395 if (vga_sub_configure != NULL) 1396 (*vga_sub_configure)(0); 1397 1398 return 0; 1399} 1400 1401/* 1402 * get_info(): 1403 * Return the video_info structure of the requested video mode. 1404 * 1405 * all adapters 1406 */ 1407static int 1408vga_get_info(video_adapter_t *adp, int mode, video_info_t *info) 1409{ 1410 int i; 1411 1412 if (!vga_init_done) 1413 return ENXIO; 1414 1415 mode = map_gen_mode_num(adp->va_type, adp->va_flags & V_ADP_COLOR, mode); 1416#ifndef VGA_NO_MODE_CHANGE 1417 if (adp->va_flags & V_ADP_MODECHANGE) { 1418 /* 1419 * If the parameter table entry for this mode is not found, 1420 * the mode is not supported... 1421 */ 1422 if (get_mode_param(mode) == NULL) 1423 return EINVAL; 1424 } else 1425#endif /* VGA_NO_MODE_CHANGE */ 1426 { 1427 /* 1428 * Even if we don't support video mode switching on this adapter, 1429 * the information on the initial (thus current) video mode 1430 * should be made available. 1431 */ 1432 if (mode != adp->va_initial_mode) 1433 return EINVAL; 1434 } 1435 1436 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1437 if (bios_vmode[i].vi_mode == NA) 1438 continue; 1439 if (mode == bios_vmode[i].vi_mode) { 1440 *info = bios_vmode[i]; 1441 /* XXX */ 1442 info->vi_buffer_size = info->vi_window_size*info->vi_planes; 1443 return 0; 1444 } 1445 } 1446 return EINVAL; 1447} 1448 1449/* 1450 * query_mode(): 1451 * Find a video mode matching the requested parameters. 1452 * Fields filled with 0 are considered "don't care" fields and 1453 * match any modes. 1454 * 1455 * all adapters 1456 */ 1457static int 1458vga_query_mode(video_adapter_t *adp, video_info_t *info) 1459{ 1460 int i; 1461 1462 if (!vga_init_done) 1463 return ENXIO; 1464 1465 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1466 if (bios_vmode[i].vi_mode == NA) 1467 continue; 1468 1469 if ((info->vi_width != 0) 1470 && (info->vi_width != bios_vmode[i].vi_width)) 1471 continue; 1472 if ((info->vi_height != 0) 1473 && (info->vi_height != bios_vmode[i].vi_height)) 1474 continue; 1475 if ((info->vi_cwidth != 0) 1476 && (info->vi_cwidth != bios_vmode[i].vi_cwidth)) 1477 continue; 1478 if ((info->vi_cheight != 0) 1479 && (info->vi_cheight != bios_vmode[i].vi_cheight)) 1480 continue; 1481 if ((info->vi_depth != 0) 1482 && (info->vi_depth != bios_vmode[i].vi_depth)) 1483 continue; 1484 if ((info->vi_planes != 0) 1485 && (info->vi_planes != bios_vmode[i].vi_planes)) 1486 continue; 1487 /* XXX: should check pixel format, memory model */ 1488 if ((info->vi_flags != 0) 1489 && (info->vi_flags != bios_vmode[i].vi_flags)) 1490 continue; 1491 1492 /* verify if this mode is supported on this adapter */ 1493 if (vga_get_info(adp, bios_vmode[i].vi_mode, info)) 1494 continue; 1495 return 0; 1496 } 1497 return ENODEV; 1498} 1499 1500/* 1501 * set_mode(): 1502 * Change the video mode. 1503 * 1504 * EGA/VGA 1505 */ 1506 1507#ifndef VGA_NO_MODE_CHANGE 1508#ifdef VGA_WIDTH90 1509static void 1510set_width90(adp_state_t *params) 1511{ 1512 /* 1513 * Based on code submitted by Kelly Yancey (kbyanc@freedomnet.com) 1514 * and alexv@sui.gda.itesm.mx. 1515 */ 1516 params->regs[5] |= 1; /* toggle 8 pixel wide fonts */ 1517 params->regs[10+0x0] = 0x6b; 1518 params->regs[10+0x1] = 0x59; 1519 params->regs[10+0x2] = 0x5a; 1520 params->regs[10+0x3] = 0x8e; 1521 params->regs[10+0x4] = 0x5e; 1522 params->regs[10+0x5] = 0x8a; 1523 params->regs[10+0x13] = 45; 1524 params->regs[35+0x13] = 0; 1525} 1526#endif /* VGA_WIDTH90 */ 1527#endif /* !VGA_NO_MODE_CHANGE */ 1528 1529static int 1530vga_set_mode(video_adapter_t *adp, int mode) 1531{ 1532#ifndef VGA_NO_MODE_CHANGE 1533 video_info_t info; 1534 adp_state_t params; 1535 1536 prologue(adp, V_ADP_MODECHANGE, ENODEV); 1537 1538 mode = map_gen_mode_num(adp->va_type, 1539 adp->va_flags & V_ADP_COLOR, mode); 1540 if (vga_get_info(adp, mode, &info)) 1541 return EINVAL; 1542 1543#if VGA_DEBUG > 1 1544 printf("vga_set_mode(): setting mode %d\n", mode); 1545#endif 1546 1547 params.sig = V_STATE_SIG; 1548 bcopy(get_mode_param(mode), params.regs, sizeof(params.regs)); 1549 1550 switch (mode) { 1551#ifdef VGA_WIDTH90 1552 case M_VGA_C90x60: case M_VGA_M90x60: 1553 set_width90(¶ms); 1554 /* FALLTHROUGH */ 1555#endif 1556 case M_VGA_C80x60: case M_VGA_M80x60: 1557 params.regs[2] = 0x08; 1558 params.regs[19] = 0x47; 1559 goto special_480l; 1560 1561#ifdef VGA_WIDTH90 1562 case M_VGA_C90x30: case M_VGA_M90x30: 1563 set_width90(¶ms); 1564 /* FALLTHROUGH */ 1565#endif 1566 case M_VGA_C80x30: case M_VGA_M80x30: 1567 params.regs[19] = 0x4f; 1568special_480l: 1569 params.regs[9] |= 0xc0; 1570 params.regs[16] = 0x08; 1571 params.regs[17] = 0x3e; 1572 params.regs[26] = 0xea; 1573 params.regs[28] = 0xdf; 1574 params.regs[31] = 0xe7; 1575 params.regs[32] = 0x04; 1576 goto setup_mode; 1577 1578#ifdef VGA_WIDTH90 1579 case M_VGA_C90x43: case M_VGA_M90x43: 1580 set_width90(¶ms); 1581 /* FALLTHROUGH */ 1582#endif 1583 case M_ENH_C80x43: case M_ENH_B80x43: 1584 params.regs[28] = 87; 1585 goto special_80x50; 1586 1587#ifdef VGA_WIDTH90 1588 case M_VGA_C90x50: case M_VGA_M90x50: 1589 set_width90(¶ms); 1590 /* FALLTHROUGH */ 1591#endif 1592 case M_VGA_C80x50: case M_VGA_M80x50: 1593special_80x50: 1594 params.regs[2] = 8; 1595 params.regs[19] = 7; 1596 goto setup_mode; 1597 1598#ifdef VGA_WIDTH90 1599 case M_VGA_C90x25: case M_VGA_M90x25: 1600 set_width90(¶ms); 1601 /* FALLTHROUGH */ 1602#endif 1603 case M_VGA_C40x25: case M_VGA_C80x25: 1604 case M_VGA_M80x25: 1605 case M_B40x25: case M_C40x25: 1606 case M_B80x25: case M_C80x25: 1607 case M_ENH_B40x25: case M_ENH_C40x25: 1608 case M_ENH_B80x25: case M_ENH_C80x25: 1609 case M_EGAMONO80x25: 1610 1611setup_mode: 1612 vga_load_state(adp, ¶ms); 1613 break; 1614 1615 case M_VGA_MODEX: 1616 /* "unchain" the VGA mode */ 1617 params.regs[5-1+0x04] &= 0xf7; 1618 params.regs[5-1+0x04] |= 0x04; 1619 /* turn off doubleword mode */ 1620 params.regs[10+0x14] &= 0xbf; 1621 /* turn off word addressing */ 1622 params.regs[10+0x17] |= 0x40; 1623 /* set logical screen width */ 1624 params.regs[10+0x13] = 80; 1625 /* set 240 lines */ 1626 params.regs[10+0x11] = 0x2c; 1627 params.regs[10+0x06] = 0x0d; 1628 params.regs[10+0x07] = 0x3e; 1629 params.regs[10+0x10] = 0xea; 1630 params.regs[10+0x11] = 0xac; 1631 params.regs[10+0x12] = 0xdf; 1632 params.regs[10+0x15] = 0xe7; 1633 params.regs[10+0x16] = 0x06; 1634 /* set vertical sync polarity to reflect aspect ratio */ 1635 params.regs[9] = 0xe3; 1636 goto setup_grmode; 1637 1638 case M_BG320: case M_CG320: case M_BG640: 1639 case M_CG320_D: case M_CG640_E: 1640 case M_CG640x350: case M_ENH_CG640: 1641 case M_BG640x480: case M_CG640x480: case M_VGA_CG320: 1642 1643setup_grmode: 1644 vga_load_state(adp, ¶ms); 1645 break; 1646 1647 default: 1648 return EINVAL; 1649 } 1650 1651 adp->va_mode = mode; 1652 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1653 update_adapter_info(adp, &info); 1654 1655 /* move hardware cursor out of the way */ 1656 (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1); 1657 1658 return 0; 1659#else /* VGA_NO_MODE_CHANGE */ 1660 return ENODEV; 1661#endif /* VGA_NO_MODE_CHANGE */ 1662} 1663 1664#ifndef VGA_NO_FONT_LOADING 1665 1666static void 1667set_font_mode(video_adapter_t *adp, u_char *buf) 1668{ 1669 u_char *mp; 1670 int s; 1671 1672 s = splhigh(); 1673 1674 /* save register values */ 1675 if (adp->va_type == KD_VGA) { 1676 outb(TSIDX, 0x02); buf[0] = inb(TSREG); 1677 outb(TSIDX, 0x04); buf[1] = inb(TSREG); 1678 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG); 1679 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG); 1680 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG); 1681 inb(adp->va_crtc_addr + 6); 1682 outb(ATC, 0x10); buf[5] = inb(ATC + 1); 1683 } else /* if (adp->va_type == KD_EGA) */ { 1684 /* 1685 * EGA cannot be read; copy parameters from the mode parameter 1686 * table. 1687 */ 1688 mp = get_mode_param(adp->va_mode); 1689 buf[0] = mp[5 + 0x02 - 1]; 1690 buf[1] = mp[5 + 0x04 - 1]; 1691 buf[2] = mp[55 + 0x04]; 1692 buf[3] = mp[55 + 0x05]; 1693 buf[4] = mp[55 + 0x06]; 1694 buf[5] = mp[35 + 0x10]; 1695 } 1696 1697 /* setup vga for loading fonts */ 1698 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1699 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01); 1700 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1701 outb(ATC, 0x20); /* enable palette */ 1702 1703#if VGA_SLOW_IOACCESS 1704#ifdef VGA_ALT_SEQACCESS 1705 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1706#endif 1707 outb(TSIDX, 0x02); outb(TSREG, 0x04); 1708 outb(TSIDX, 0x04); outb(TSREG, 0x07); 1709#ifdef VGA_ALT_SEQACCESS 1710 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1711#endif 1712 outb(GDCIDX, 0x04); outb(GDCREG, 0x02); 1713 outb(GDCIDX, 0x05); outb(GDCREG, 0x00); 1714 outb(GDCIDX, 0x06); outb(GDCREG, 0x04); 1715#else /* VGA_SLOW_IOACCESS */ 1716#ifdef VGA_ALT_SEQACCESS 1717 outw(TSIDX, 0x0100); 1718#endif 1719 outw(TSIDX, 0x0402); 1720 outw(TSIDX, 0x0704); 1721#ifdef VGA_ALT_SEQACCESS 1722 outw(TSIDX, 0x0300); 1723#endif 1724 outw(GDCIDX, 0x0204); 1725 outw(GDCIDX, 0x0005); 1726 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */ 1727#endif /* VGA_SLOW_IOACCESS */ 1728 1729 splx(s); 1730} 1731 1732static void 1733set_normal_mode(video_adapter_t *adp, u_char *buf) 1734{ 1735 int s; 1736 1737 s = splhigh(); 1738 1739 /* setup vga for normal operation mode again */ 1740 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1741 outb(ATC, 0x10); outb(ATC, buf[5]); 1742 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1743 outb(ATC, 0x20); /* enable palette */ 1744 1745#if VGA_SLOW_IOACCESS 1746#ifdef VGA_ALT_SEQACCESS 1747 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1748#endif 1749 outb(TSIDX, 0x02); outb(TSREG, buf[0]); 1750 outb(TSIDX, 0x04); outb(TSREG, buf[1]); 1751#ifdef VGA_ALT_SEQACCESS 1752 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1753#endif 1754 outb(GDCIDX, 0x04); outb(GDCREG, buf[2]); 1755 outb(GDCIDX, 0x05); outb(GDCREG, buf[3]); 1756 if (adp->va_crtc_addr == MONO_CRTC) { 1757 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x08); 1758 } else { 1759 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x0c); 1760 } 1761#else /* VGA_SLOW_IOACCESS */ 1762#ifdef VGA_ALT_SEQACCESS 1763 outw(TSIDX, 0x0100); 1764#endif 1765 outw(TSIDX, 0x0002 | (buf[0] << 8)); 1766 outw(TSIDX, 0x0004 | (buf[1] << 8)); 1767#ifdef VGA_ALT_SEQACCESS 1768 outw(TSIDX, 0x0300); 1769#endif 1770 outw(GDCIDX, 0x0004 | (buf[2] << 8)); 1771 outw(GDCIDX, 0x0005 | (buf[3] << 8)); 1772 if (adp->va_crtc_addr == MONO_CRTC) 1773 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x08)<<8)); 1774 else 1775 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8)); 1776#endif /* VGA_SLOW_IOACCESS */ 1777 1778 splx(s); 1779} 1780 1781#endif /* VGA_NO_FONT_LOADING */ 1782 1783/* 1784 * save_font(): 1785 * Read the font data in the requested font page from the video adapter. 1786 * 1787 * EGA/VGA 1788 */ 1789static int 1790vga_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1791 int ch, int count) 1792{ 1793#ifndef VGA_NO_FONT_LOADING 1794 u_char buf[PARAM_BUFSIZE]; 1795 vm_offset_t segment; 1796 int c; 1797#ifdef VGA_ALT_SEQACCESS 1798 int s; 1799 u_char val = 0; 1800#endif 1801 1802 prologue(adp, V_ADP_FONT, ENODEV); 1803 1804 if (fontsize < 14) { 1805 /* FONT_8 */ 1806 fontsize = 8; 1807 } else if (fontsize >= 32) { 1808 fontsize = 32; 1809 } else if (fontsize >= 16) { 1810 /* FONT_16 */ 1811 fontsize = 16; 1812 } else { 1813 /* FONT_14 */ 1814 fontsize = 14; 1815 } 1816 1817 if (page < 0 || page >= 8) 1818 return EINVAL; 1819 segment = FONT_BUF + 0x4000*page; 1820 if (page > 3) 1821 segment -= 0xe000; 1822 1823#ifdef VGA_ALT_SEQACCESS 1824 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1825 s = splhigh(); 1826 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1827 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1828 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1829 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1830 splx(s); 1831 } 1832#endif 1833 1834 set_font_mode(adp, buf); 1835 if (fontsize == 32) { 1836 bcopy_fromio((uintptr_t)segment + ch*32, data, fontsize*count); 1837 } else { 1838 for (c = ch; count > 0; ++c, --count) { 1839 bcopy_fromio((uintptr_t)segment + c*32, data, fontsize); 1840 data += fontsize; 1841 } 1842 } 1843 set_normal_mode(adp, buf); 1844 1845#ifdef VGA_ALT_SEQACCESS 1846 if (adp->va_type == KD_VGA) { 1847 s = splhigh(); 1848 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1849 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1850 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1851 splx(s); 1852 } 1853#endif 1854 1855 return 0; 1856#else /* VGA_NO_FONT_LOADING */ 1857 return ENODEV; 1858#endif /* VGA_NO_FONT_LOADING */ 1859} 1860 1861/* 1862 * load_font(): 1863 * Set the font data in the requested font page. 1864 * NOTE: it appears that some recent video adapters do not support 1865 * the font page other than 0... XXX 1866 * 1867 * EGA/VGA 1868 */ 1869static int 1870vga_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1871 int ch, int count) 1872{ 1873#ifndef VGA_NO_FONT_LOADING 1874 u_char buf[PARAM_BUFSIZE]; 1875 vm_offset_t segment; 1876 int c; 1877#ifdef VGA_ALT_SEQACCESS 1878 int s; 1879 u_char val = 0; 1880#endif 1881 1882 prologue(adp, V_ADP_FONT, ENODEV); 1883 1884 if (fontsize < 14) { 1885 /* FONT_8 */ 1886 fontsize = 8; 1887 } else if (fontsize >= 32) { 1888 fontsize = 32; 1889 } else if (fontsize >= 16) { 1890 /* FONT_16 */ 1891 fontsize = 16; 1892 } else { 1893 /* FONT_14 */ 1894 fontsize = 14; 1895 } 1896 1897 if (page < 0 || page >= 8) 1898 return EINVAL; 1899 segment = FONT_BUF + 0x4000*page; 1900 if (page > 3) 1901 segment -= 0xe000; 1902 1903#ifdef VGA_ALT_SEQACCESS 1904 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1905 s = splhigh(); 1906 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1907 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1908 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1909 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1910 splx(s); 1911 } 1912#endif 1913 1914 set_font_mode(adp, buf); 1915 if (fontsize == 32) { 1916 bcopy_toio(data, (uintptr_t)segment + ch*32, fontsize*count); 1917 } else { 1918 for (c = ch; count > 0; ++c, --count) { 1919 bcopy_toio(data, (uintptr_t)segment + c*32, fontsize); 1920 data += fontsize; 1921 } 1922 } 1923 set_normal_mode(adp, buf); 1924 1925#ifdef VGA_ALT_SEQACCESS 1926 if (adp->va_type == KD_VGA) { 1927 s = splhigh(); 1928 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1929 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1930 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1931 splx(s); 1932 } 1933#endif 1934 1935 return 0; 1936#else /* VGA_NO_FONT_LOADING */ 1937 return ENODEV; 1938#endif /* VGA_NO_FONT_LOADING */ 1939} 1940 1941/* 1942 * show_font(): 1943 * Activate the requested font page. 1944 * NOTE: it appears that some recent video adapters do not support 1945 * the font page other than 0... XXX 1946 * 1947 * EGA/VGA 1948 */ 1949static int 1950vga_show_font(video_adapter_t *adp, int page) 1951{ 1952#ifndef VGA_NO_FONT_LOADING 1953 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f }; 1954 int s; 1955 1956 prologue(adp, V_ADP_FONT, ENODEV); 1957 if (page < 0 || page >= 8) 1958 return EINVAL; 1959 1960 s = splhigh(); 1961 outb(TSIDX, 0x03); outb(TSREG, cg[page]); 1962 splx(s); 1963 1964 return 0; 1965#else /* VGA_NO_FONT_LOADING */ 1966 return ENODEV; 1967#endif /* VGA_NO_FONT_LOADING */ 1968} 1969 1970/* 1971 * save_palette(): 1972 * Read DAC values. The values have expressed in 8 bits. 1973 * 1974 * VGA 1975 */ 1976static int 1977vga_save_palette(video_adapter_t *adp, u_char *palette) 1978{ 1979 int i; 1980 1981 prologue(adp, V_ADP_PALETTE, ENODEV); 1982 1983 /* 1984 * We store 8 bit values in the palette buffer, while the standard 1985 * VGA has 6 bit DAC . 1986 */ 1987 outb(PALRADR, 0x00); 1988 for (i = 0; i < 256*3; ++i) 1989 palette[i] = inb(PALDATA) << 2; 1990 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1991 return 0; 1992} 1993 1994static int 1995vga_save_palette2(video_adapter_t *adp, int base, int count, 1996 u_char *r, u_char *g, u_char *b) 1997{ 1998 int i; 1999 2000 prologue(adp, V_ADP_PALETTE, ENODEV); 2001 2002 outb(PALRADR, base); 2003 for (i = 0; i < count; ++i) { 2004 r[i] = inb(PALDATA) << 2; 2005 g[i] = inb(PALDATA) << 2; 2006 b[i] = inb(PALDATA) << 2; 2007 } 2008 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2009 return 0; 2010} 2011 2012/* 2013 * load_palette(): 2014 * Set DAC values. 2015 * 2016 * VGA 2017 */ 2018static int 2019vga_load_palette(video_adapter_t *adp, u_char *palette) 2020{ 2021 int i; 2022 2023 prologue(adp, V_ADP_PALETTE, ENODEV); 2024 2025 outb(PIXMASK, 0xff); /* no pixelmask */ 2026 outb(PALWADR, 0x00); 2027 for (i = 0; i < 256*3; ++i) 2028 outb(PALDATA, palette[i] >> 2); 2029 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2030 outb(ATC, 0x20); /* enable palette */ 2031 return 0; 2032} 2033 2034static int 2035vga_load_palette2(video_adapter_t *adp, int base, int count, 2036 u_char *r, u_char *g, u_char *b) 2037{ 2038 int i; 2039 2040 prologue(adp, V_ADP_PALETTE, ENODEV); 2041 2042 outb(PIXMASK, 0xff); /* no pixelmask */ 2043 outb(PALWADR, base); 2044 for (i = 0; i < count; ++i) { 2045 outb(PALDATA, r[i] >> 2); 2046 outb(PALDATA, g[i] >> 2); 2047 outb(PALDATA, b[i] >> 2); 2048 } 2049 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2050 outb(ATC, 0x20); /* enable palette */ 2051 return 0; 2052} 2053 2054/* 2055 * set_border(): 2056 * Change the border color. 2057 * 2058 * CGA/EGA/VGA 2059 */ 2060static int 2061vga_set_border(video_adapter_t *adp, int color) 2062{ 2063 prologue(adp, V_ADP_BORDER, ENODEV); 2064 2065 switch (adp->va_type) { 2066 case KD_EGA: 2067 case KD_VGA: 2068 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 2069 outb(ATC, 0x31); outb(ATC, color & 0xff); 2070 break; 2071 case KD_CGA: 2072 outb(adp->va_crtc_addr + 5, color & 0x0f); /* color select register */ 2073 break; 2074 case KD_MONO: 2075 case KD_HERCULES: 2076 default: 2077 break; 2078 } 2079 return 0; 2080} 2081 2082/* 2083 * save_state(): 2084 * Read video register values. 2085 * NOTE: this function only reads the standard EGA/VGA registers. 2086 * any extra/extended registers of SVGA adapters are not saved. 2087 * 2088 * VGA 2089 */ 2090static int 2091vga_save_state(video_adapter_t *adp, void *p, size_t size) 2092{ 2093 video_info_t info; 2094 u_char *buf; 2095 int crtc_addr; 2096 int i, j; 2097 int s; 2098 2099 if (size == 0) { 2100 /* return the required buffer size */ 2101 prologue(adp, V_ADP_STATESAVE, 0); 2102 return sizeof(adp_state_t); 2103 } else { 2104 prologue(adp, V_ADP_STATESAVE, ENODEV); 2105 if (size < sizeof(adp_state_t)) 2106 return EINVAL; 2107 } 2108 2109 ((adp_state_t *)p)->sig = V_STATE_SIG; 2110 buf = ((adp_state_t *)p)->regs; 2111 bzero(buf, V_MODE_PARAM_SIZE); 2112 crtc_addr = adp->va_crtc_addr; 2113 2114 s = splhigh(); 2115 2116 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2117 for (i = 0, j = 5; i < 4; i++) { 2118 outb(TSIDX, i + 1); 2119 buf[j++] = inb(TSREG); 2120 } 2121 buf[9] = inb(MISC + 10); /* dot-clock */ 2122 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2123 2124 for (i = 0, j = 10; i < 25; i++) { /* crtc */ 2125 outb(crtc_addr, i); 2126 buf[j++] = inb(crtc_addr + 1); 2127 } 2128 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */ 2129 inb(crtc_addr + 6); /* reset flip-flop */ 2130 outb(ATC, i); 2131 buf[j++] = inb(ATC + 1); 2132 } 2133 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */ 2134 outb(GDCIDX, i); 2135 buf[j++] = inb(GDCREG); 2136 } 2137 inb(crtc_addr + 6); /* reset flip-flop */ 2138 outb(ATC, 0x20); /* enable palette */ 2139 2140 splx(s); 2141 2142#if 1 2143 if (vga_get_info(adp, adp->va_mode, &info) == 0) { 2144 if (info.vi_flags & V_INFO_GRAPHICS) { 2145 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */ 2146 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */ 2147 } else { 2148 buf[0] = info.vi_width; /* COLS */ 2149 buf[1] = info.vi_height - 1; /* ROWS */ 2150 } 2151 buf[2] = info.vi_cheight; /* POINTS */ 2152 } else { 2153 /* XXX: shouldn't be happening... */ 2154 printf("vga%d: %s: failed to obtain mode info. (vga_save_state())\n", 2155 adp->va_unit, adp->va_name); 2156 } 2157#else 2158 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */ 2159 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */ 2160 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */ 2161 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c)); 2162 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d)); 2163#endif 2164 2165 return 0; 2166} 2167 2168/* 2169 * load_state(): 2170 * Set video registers at once. 2171 * NOTE: this function only updates the standard EGA/VGA registers. 2172 * any extra/extended registers of SVGA adapters are not changed. 2173 * 2174 * EGA/VGA 2175 */ 2176static int 2177vga_load_state(video_adapter_t *adp, void *p) 2178{ 2179 u_char *buf; 2180 int crtc_addr; 2181 int s; 2182 int i; 2183 2184 prologue(adp, V_ADP_STATELOAD, ENODEV); 2185 if (((adp_state_t *)p)->sig != V_STATE_SIG) 2186 return EINVAL; 2187 2188 buf = ((adp_state_t *)p)->regs; 2189 crtc_addr = adp->va_crtc_addr; 2190 2191#if VGA_DEBUG > 1 2192 dump_buffer(buf, V_MODE_PARAM_SIZE); 2193#endif 2194 2195 s = splhigh(); 2196 2197 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2198 for (i = 0; i < 4; ++i) { /* program sequencer */ 2199 outb(TSIDX, i + 1); 2200 outb(TSREG, buf[i + 5]); 2201 } 2202 outb(MISC, buf[9]); /* set dot-clock */ 2203 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2204 outb(crtc_addr, 0x11); 2205 outb(crtc_addr + 1, inb(crtc_addr + 1) & 0x7F); 2206 for (i = 0; i < 25; ++i) { /* program crtc */ 2207 outb(crtc_addr, i); 2208 outb(crtc_addr + 1, buf[i + 10]); 2209 } 2210 inb(crtc_addr+6); /* reset flip-flop */ 2211 for (i = 0; i < 20; ++i) { /* program attribute ctrl */ 2212 outb(ATC, i); 2213 outb(ATC, buf[i + 35]); 2214 } 2215 for (i = 0; i < 9; ++i) { /* program graph data ctrl */ 2216 outb(GDCIDX, i); 2217 outb(GDCREG, buf[i + 55]); 2218 } 2219 inb(crtc_addr + 6); /* reset flip-flop */ 2220 outb(ATC, 0x20); /* enable palette */ 2221 2222#if notyet /* a temporary workaround for kernel panic, XXX */ 2223#ifndef VGA_NO_BIOS 2224 if (adp->va_unit == V_ADP_PRIMARY) { 2225 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */ 2226 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */ 2227 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */ 2228#if 0 2229 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]); 2230 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]); 2231#endif 2232 } 2233#endif /* VGA_NO_BIOS */ 2234#endif /* notyet */ 2235 2236 splx(s); 2237 return 0; 2238} 2239 2240/* 2241 * set_origin(): 2242 * Change the origin (window mapping) of the banked frame buffer. 2243 */ 2244static int 2245vga_set_origin(video_adapter_t *adp, off_t offset) 2246{ 2247 /* 2248 * The standard video modes do not require window mapping; 2249 * always return error. 2250 */ 2251 return ENODEV; 2252} 2253 2254/* 2255 * read_hw_cursor(): 2256 * Read the position of the hardware text cursor. 2257 * 2258 * all adapters 2259 */ 2260static int 2261vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 2262{ 2263 u_int16_t off; 2264 int s; 2265 2266 if (!vga_init_done) 2267 return ENXIO; 2268 2269 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2270 return ENODEV; 2271 2272 s = spltty(); 2273 outb(adp->va_crtc_addr, 14); 2274 off = inb(adp->va_crtc_addr + 1); 2275 outb(adp->va_crtc_addr, 15); 2276 off = (off << 8) | inb(adp->va_crtc_addr + 1); 2277 splx(s); 2278 2279 *row = off / adp->va_info.vi_width; 2280 *col = off % adp->va_info.vi_width; 2281 2282 return 0; 2283} 2284 2285/* 2286 * set_hw_cursor(): 2287 * Move the hardware text cursor. If col and row are both -1, 2288 * the cursor won't be shown. 2289 * 2290 * all adapters 2291 */ 2292static int 2293vga_set_hw_cursor(video_adapter_t *adp, int col, int row) 2294{ 2295 u_int16_t off; 2296 int s; 2297 2298 if (!vga_init_done) 2299 return ENXIO; 2300 2301 if ((col == -1) && (row == -1)) { 2302 off = -1; 2303 } else { 2304 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2305 return ENODEV; 2306 off = row*adp->va_info.vi_width + col; 2307 } 2308 2309 s = spltty(); 2310 outb(adp->va_crtc_addr, 14); 2311 outb(adp->va_crtc_addr + 1, off >> 8); 2312 outb(adp->va_crtc_addr, 15); 2313 outb(adp->va_crtc_addr + 1, off & 0x00ff); 2314 splx(s); 2315 2316 return 0; 2317} 2318 2319/* 2320 * set_hw_cursor_shape(): 2321 * Change the shape of the hardware text cursor. If the height is 2322 * zero or negative, the cursor won't be shown. 2323 * 2324 * all adapters 2325 */ 2326static int 2327vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 2328 int celsize, int blink) 2329{ 2330 int s; 2331 2332 if (!vga_init_done) 2333 return ENXIO; 2334 2335 s = spltty(); 2336 switch (adp->va_type) { 2337 case KD_VGA: 2338 case KD_CGA: 2339 case KD_MONO: 2340 case KD_HERCULES: 2341 default: 2342 if (height <= 0) { 2343 /* make the cursor invisible */ 2344 outb(adp->va_crtc_addr, 10); 2345 outb(adp->va_crtc_addr + 1, 32); 2346 outb(adp->va_crtc_addr, 11); 2347 outb(adp->va_crtc_addr + 1, 0); 2348 } else { 2349 outb(adp->va_crtc_addr, 10); 2350 outb(adp->va_crtc_addr + 1, celsize - base - height); 2351 outb(adp->va_crtc_addr, 11); 2352 outb(adp->va_crtc_addr + 1, celsize - base - 1); 2353 } 2354 break; 2355 case KD_EGA: 2356 if (height <= 0) { 2357 /* make the cursor invisible */ 2358 outb(adp->va_crtc_addr, 10); 2359 outb(adp->va_crtc_addr + 1, celsize); 2360 outb(adp->va_crtc_addr, 11); 2361 outb(adp->va_crtc_addr + 1, 0); 2362 } else { 2363 outb(adp->va_crtc_addr, 10); 2364 outb(adp->va_crtc_addr + 1, celsize - base - height); 2365 outb(adp->va_crtc_addr, 11); 2366 outb(adp->va_crtc_addr + 1, celsize - base); 2367 } 2368 break; 2369 } 2370 splx(s); 2371 2372 return 0; 2373} 2374 2375/* 2376 * blank_display() 2377 * Put the display in power save/power off mode. 2378 * 2379 * all adapters 2380 */ 2381static int 2382vga_blank_display(video_adapter_t *adp, int mode) 2383{ 2384 u_char val; 2385 int s; 2386 2387 s = splhigh(); 2388 switch (adp->va_type) { 2389 case KD_VGA: 2390 switch (mode) { 2391 case V_DISPLAY_SUSPEND: 2392 case V_DISPLAY_STAND_BY: 2393 outb(TSIDX, 0x01); 2394 val = inb(TSREG); 2395 outb(TSIDX, 0x01); 2396 outb(TSREG, val | 0x20); 2397 outb(adp->va_crtc_addr, 0x17); 2398 val = inb(adp->va_crtc_addr + 1); 2399 outb(adp->va_crtc_addr + 1, val & ~0x80); 2400 break; 2401 case V_DISPLAY_BLANK: 2402 outb(TSIDX, 0x01); 2403 val = inb(TSREG); 2404 outb(TSIDX, 0x01); 2405 outb(TSREG, val | 0x20); 2406 break; 2407 case V_DISPLAY_ON: 2408 outb(TSIDX, 0x01); 2409 val = inb(TSREG); 2410 outb(TSIDX, 0x01); 2411 outb(TSREG, val & 0xDF); 2412 outb(adp->va_crtc_addr, 0x17); 2413 val = inb(adp->va_crtc_addr + 1); 2414 outb(adp->va_crtc_addr + 1, val | 0x80); 2415 break; 2416 } 2417 break; 2418 2419 case KD_EGA: 2420 /* no support yet */ 2421 splx(s); 2422 return ENODEV; 2423 2424 case KD_CGA: 2425 switch (mode) { 2426 case V_DISPLAY_SUSPEND: 2427 case V_DISPLAY_STAND_BY: 2428 case V_DISPLAY_BLANK: 2429 outb(adp->va_crtc_addr + 4, 0x25); 2430 break; 2431 case V_DISPLAY_ON: 2432 outb(adp->va_crtc_addr + 4, 0x2d); 2433 break; 2434 } 2435 break; 2436 2437 case KD_MONO: 2438 case KD_HERCULES: 2439 switch (mode) { 2440 case V_DISPLAY_SUSPEND: 2441 case V_DISPLAY_STAND_BY: 2442 case V_DISPLAY_BLANK: 2443 outb(adp->va_crtc_addr + 4, 0x21); 2444 break; 2445 case V_DISPLAY_ON: 2446 outb(adp->va_crtc_addr + 4, 0x29); 2447 break; 2448 } 2449 break; 2450 default: 2451 break; 2452 } 2453 splx(s); 2454 2455 return 0; 2456} 2457 2458/* 2459 * mmap(): 2460 * Mmap frame buffer. 2461 * 2462 * all adapters 2463 */ 2464static int 2465vga_mmap_buf(video_adapter_t *adp, vm_offset_t offset, vm_paddr_t *paddr, 2466 int prot) 2467{ 2468 if (adp->va_info.vi_flags & V_INFO_LINEAR) 2469 return -1; 2470 2471#if VGA_DEBUG > 0 2472 printf("vga_mmap_buf(): window:0x%jx, offset:0x%jx\n", 2473 (uintmax_t)adp->va_info.vi_window, (uintmax_t)offset); 2474#endif 2475 2476 /* XXX: is this correct? */ 2477 if (offset > adp->va_window_size - PAGE_SIZE) 2478 return -1; 2479 2480 *paddr = adp->va_info.vi_window + offset; 2481 return 0; 2482} 2483 2484#ifndef VGA_NO_MODE_CHANGE 2485 2486static void 2487planar_fill(video_adapter_t *adp, int val) 2488{ 2489 int length; 2490 int at; /* position in the frame buffer */ 2491 int l; 2492 2493 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2494 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2495 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2496 outw(GDCIDX, 0xff08); /* bit mask */ 2497 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2498 at = 0; 2499 length = adp->va_line_width*adp->va_info.vi_height; 2500 while (length > 0) { 2501 l = imin(length, adp->va_window_size); 2502 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2503 bzero_io(adp->va_window, l); 2504 length -= l; 2505 at += l; 2506 } 2507 outw(GDCIDX, 0x0000); /* set/reset */ 2508 outw(GDCIDX, 0x0001); /* set/reset enable */ 2509} 2510 2511static void 2512packed_fill(video_adapter_t *adp, int val) 2513{ 2514 int length; 2515 int at; /* position in the frame buffer */ 2516 int l; 2517 2518 at = 0; 2519 length = adp->va_line_width*adp->va_info.vi_height; 2520 while (length > 0) { 2521 l = imin(length, adp->va_window_size); 2522 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2523 fill_io(val, adp->va_window, l); 2524 length -= l; 2525 at += l; 2526 } 2527} 2528 2529static void 2530direct_fill(video_adapter_t *adp, int val) 2531{ 2532 int length; 2533 int at; /* position in the frame buffer */ 2534 int l; 2535 2536 at = 0; 2537 length = adp->va_line_width*adp->va_info.vi_height; 2538 while (length > 0) { 2539 l = imin(length, adp->va_window_size); 2540 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2541 switch (adp->va_info.vi_pixel_size) { 2542 case sizeof(u_int16_t): 2543 fillw_io(val, adp->va_window, l/sizeof(u_int16_t)); 2544 break; 2545 case 3: 2546 /* FIXME */ 2547 break; 2548 case sizeof(u_int32_t): 2549 filll_io(val, adp->va_window, l/sizeof(u_int32_t)); 2550 break; 2551 } 2552 length -= l; 2553 at += l; 2554 } 2555} 2556 2557static int 2558vga_clear(video_adapter_t *adp) 2559{ 2560 switch (adp->va_info.vi_mem_model) { 2561 case V_INFO_MM_TEXT: 2562 /* do nothing? XXX */ 2563 break; 2564 case V_INFO_MM_PLANAR: 2565 planar_fill(adp, 0); 2566 break; 2567 case V_INFO_MM_PACKED: 2568 packed_fill(adp, 0); 2569 break; 2570 case V_INFO_MM_DIRECT: 2571 direct_fill(adp, 0); 2572 break; 2573 } 2574 return 0; 2575} 2576 2577#ifdef notyet 2578static void 2579planar_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2580{ 2581 int banksize; 2582 int bank; 2583 int pos; 2584 int offset; /* offset within window */ 2585 int bx; 2586 int l; 2587 2588 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2589 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2590 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2591 outw(GDCIDX, 0xff08); /* bit mask */ 2592 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2593 2594 banksize = adp->va_window_size; 2595 bank = -1; 2596 while (cy > 0) { 2597 pos = adp->va_line_width*y + x/8; 2598 if (bank != pos/banksize) { 2599 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2600 bank = pos/banksize; 2601 } 2602 offset = pos%banksize; 2603 bx = (x + cx)/8 - x/8; 2604 if (x % 8) { 2605 outw(GDCIDX, ((0xff00 >> (x % 8)) & 0xff00) | 0x08); 2606 writeb(adp->va_window + offset, 0); 2607 ++offset; 2608 --bx; 2609 if (offset >= banksize) { 2610 offset = 0; 2611 ++bank; /* next bank */ 2612 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2613 } 2614 outw(GDCIDX, 0xff08); /* bit mask */ 2615 } 2616 while (bx > 0) { 2617 l = imin(bx, banksize); 2618 bzero_io(adp->va_window + offset, l); 2619 offset += l; 2620 bx -= l; 2621 if (offset >= banksize) { 2622 offset = 0; 2623 ++bank; /* next bank */ 2624 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2625 } 2626 } 2627 if ((x + cx) % 8) { 2628 outw(GDCIDX, (~(0xff00 >> ((x + cx) % 8)) & 0xff00) | 0x08); 2629 writeb(adp->va_window + offset, 0); 2630 ++offset; 2631 if (offset >= banksize) { 2632 offset = 0; 2633 ++bank; /* next bank */ 2634 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2635 } 2636 outw(GDCIDX, 0xff08); /* bit mask */ 2637 } 2638 ++y; 2639 --cy; 2640 } 2641 2642 outw(GDCIDX, 0xff08); /* bit mask */ 2643 outw(GDCIDX, 0x0000); /* set/reset */ 2644 outw(GDCIDX, 0x0001); /* set/reset enable */ 2645} 2646 2647static void 2648packed_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2649{ 2650 int banksize; 2651 int bank; 2652 int pos; 2653 int offset; /* offset within window */ 2654 int end; 2655 2656 banksize = adp->va_window_size; 2657 bank = -1; 2658 cx *= adp->va_info.vi_pixel_size; 2659 while (cy > 0) { 2660 pos = adp->va_line_width*y + x*adp->va_info.vi_pixel_size; 2661 if (bank != pos/banksize) { 2662 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2663 bank = pos/banksize; 2664 } 2665 offset = pos%banksize; 2666 end = imin(offset + cx, banksize); 2667 fill_io(val, adp->va_window + offset, 2668 (end - offset)/adp->va_info.vi_pixel_size); 2669 /* the line may cross the window boundary */ 2670 if (offset + cx > banksize) { 2671 ++bank; /* next bank */ 2672 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2673 end = offset + cx - banksize; 2674 fill_io(val, adp->va_window, end/adp->va_info.vi_pixel_size); 2675 } 2676 ++y; 2677 --cy; 2678 } 2679} 2680 2681static void 2682direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2683{ 2684 int banksize; 2685 int bank; 2686 int pos; 2687 int offset; /* offset within window */ 2688 int end; 2689 2690 /* 2691 * XXX: the function assumes that banksize is a muliple of 2692 * sizeof(u_int16_t). 2693 */ 2694 banksize = adp->va_window_size; 2695 bank = -1; 2696 cx *= sizeof(u_int16_t); 2697 while (cy > 0) { 2698 pos = adp->va_line_width*y + x*sizeof(u_int16_t); 2699 if (bank != pos/banksize) { 2700 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2701 bank = pos/banksize; 2702 } 2703 offset = pos%banksize; 2704 end = imin(offset + cx, banksize); 2705 fillw_io(val, adp->va_window + offset, 2706 (end - offset)/sizeof(u_int16_t)); 2707 /* the line may cross the window boundary */ 2708 if (offset + cx > banksize) { 2709 ++bank; /* next bank */ 2710 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2711 end = offset + cx - banksize; 2712 fillw_io(val, adp->va_window, end/sizeof(u_int16_t)); 2713 } 2714 ++y; 2715 --cy; 2716 } 2717} 2718 2719static void 2720direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2721{ 2722 int banksize; 2723 int bank; 2724 int pos; 2725 int offset; /* offset within window */ 2726 int end; 2727 int i; 2728 int j; 2729 u_int8_t b[3]; 2730 2731 b[0] = val & 0x0000ff; 2732 b[1] = (val >> 8) & 0x0000ff; 2733 b[2] = (val >> 16) & 0x0000ff; 2734 banksize = adp->va_window_size; 2735 bank = -1; 2736 cx *= 3; 2737 while (cy > 0) { 2738 pos = adp->va_line_width*y + x*3; 2739 if (bank != pos/banksize) { 2740 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2741 bank = pos/banksize; 2742 } 2743 offset = pos%banksize; 2744 end = imin(offset + cx, banksize); 2745 for (i = 0, j = offset; j < end; i = (++i)%3, ++j) { 2746 writeb(adp->va_window + j, b[i]); 2747 } 2748 /* the line may cross the window boundary */ 2749 if (offset + cx >= banksize) { 2750 ++bank; /* next bank */ 2751 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2752 j = 0; 2753 end = offset + cx - banksize; 2754 for (; j < end; i = (++i)%3, ++j) { 2755 writeb(adp->va_window + j, b[i]); 2756 } 2757 } 2758 ++y; 2759 --cy; 2760 } 2761} 2762 2763static void 2764direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2765{ 2766 int banksize; 2767 int bank; 2768 int pos; 2769 int offset; /* offset within window */ 2770 int end; 2771 2772 /* 2773 * XXX: the function assumes that banksize is a muliple of 2774 * sizeof(u_int32_t). 2775 */ 2776 banksize = adp->va_window_size; 2777 bank = -1; 2778 cx *= sizeof(u_int32_t); 2779 while (cy > 0) { 2780 pos = adp->va_line_width*y + x*sizeof(u_int32_t); 2781 if (bank != pos/banksize) { 2782 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2783 bank = pos/banksize; 2784 } 2785 offset = pos%banksize; 2786 end = imin(offset + cx, banksize); 2787 filll_io(val, adp->va_window + offset, 2788 (end - offset)/sizeof(u_int32_t)); 2789 /* the line may cross the window boundary */ 2790 if (offset + cx > banksize) { 2791 ++bank; /* next bank */ 2792 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2793 end = offset + cx - banksize; 2794 filll_io(val, adp->va_window, end/sizeof(u_int32_t)); 2795 } 2796 ++y; 2797 --cy; 2798 } 2799} 2800 2801static int 2802vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2803{ 2804 switch (adp->va_info.vi_mem_model) { 2805 case V_INFO_MM_TEXT: 2806 /* do nothing? XXX */ 2807 break; 2808 case V_INFO_MM_PLANAR: 2809 planar_fill_rect(adp, val, x, y, cx, cy); 2810 break; 2811 case V_INFO_MM_PACKED: 2812 packed_fill_rect(adp, val, x, y, cx, cy); 2813 break; 2814 case V_INFO_MM_DIRECT: 2815 switch (adp->va_info.vi_pixel_size) { 2816 case sizeof(u_int16_t): 2817 direct_fill_rect16(adp, val, x, y, cx, cy); 2818 break; 2819 case 3: 2820 direct_fill_rect24(adp, val, x, y, cx, cy); 2821 break; 2822 case sizeof(u_int32_t): 2823 direct_fill_rect32(adp, val, x, y, cx, cy); 2824 break; 2825 } 2826 break; 2827 } 2828 return 0; 2829} 2830#else /* !notyet */ 2831static int 2832vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2833{ 2834 return ENODEV; 2835} 2836#endif /* notyet */ 2837 2838static int 2839vga_bitblt(video_adapter_t *adp,...) 2840{ 2841 /* FIXME */ 2842 return ENODEV; 2843} 2844 2845#endif /* !VGA_NO_MODE_CHANGE */ 2846 2847static int 2848get_palette(video_adapter_t *adp, int base, int count, 2849 u_char *red, u_char *green, u_char *blue, u_char *trans) 2850{ 2851 u_char *r; 2852 u_char *g; 2853 u_char *b; 2854 2855 if (count < 0 || base < 0 || count > 256 || base > 256 || 2856 base + count > 256) 2857 return EINVAL; 2858 2859 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2860 g = r + count; 2861 b = g + count; 2862 if (vga_save_palette2(adp, base, count, r, g, b)) { 2863 free(r, M_DEVBUF); 2864 return ENODEV; 2865 } 2866 copyout(r, red, count); 2867 copyout(g, green, count); 2868 copyout(b, blue, count); 2869 if (trans != NULL) { 2870 bzero(r, count); 2871 copyout(r, trans, count); 2872 } 2873 free(r, M_DEVBUF); 2874 2875 return 0; 2876} 2877 2878static int 2879set_palette(video_adapter_t *adp, int base, int count, 2880 u_char *red, u_char *green, u_char *blue, u_char *trans) 2881{ 2882 u_char *r; 2883 u_char *g; 2884 u_char *b; 2885 int err; 2886 2887 if (count < 0 || base < 0 || count > 256 || base > 256 || 2888 base + count > 256) 2889 return EINVAL; 2890 2891 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2892 g = r + count; 2893 b = g + count; 2894 copyin(red, r, count); 2895 copyin(green, g, count); 2896 copyin(blue, b, count); 2897 err = vga_load_palette2(adp, base, count, r, g, b); 2898 free(r, M_DEVBUF); 2899 2900 return (err ? ENODEV : 0); 2901} 2902 2903static int 2904vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 2905{ 2906 switch (cmd) { 2907 case FBIO_GETWINORG: /* get frame buffer window origin */ 2908 *(u_int *)arg = 0; 2909 return 0; 2910 2911 case FBIO_SETWINORG: /* set frame buffer window origin */ 2912 return ENODEV; 2913 2914 case FBIO_SETDISPSTART: /* set display start address */ 2915 return (set_display_start(adp, 2916 ((video_display_start_t *)arg)->x, 2917 ((video_display_start_t *)arg)->y) 2918 ? ENODEV : 0); 2919 2920 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */ 2921 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0); 2922 2923 case FBIO_GETPALETTE: /* get color palette */ 2924 return get_palette(adp, ((video_color_palette_t *)arg)->index, 2925 ((video_color_palette_t *)arg)->count, 2926 ((video_color_palette_t *)arg)->red, 2927 ((video_color_palette_t *)arg)->green, 2928 ((video_color_palette_t *)arg)->blue, 2929 ((video_color_palette_t *)arg)->transparent); 2930 2931 case FBIO_SETPALETTE: /* set color palette */ 2932 return set_palette(adp, ((video_color_palette_t *)arg)->index, 2933 ((video_color_palette_t *)arg)->count, 2934 ((video_color_palette_t *)arg)->red, 2935 ((video_color_palette_t *)arg)->green, 2936 ((video_color_palette_t *)arg)->blue, 2937 ((video_color_palette_t *)arg)->transparent); 2938 2939 case FBIOGTYPE: /* get frame buffer type info. */ 2940 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type); 2941 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height; 2942 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width; 2943 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth; 2944 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8)) 2945 ((struct fbtype *)arg)->fb_cmsize = 0; 2946 else 2947 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth; 2948 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size; 2949 return 0; 2950 2951 case FBIOGETCMAP: /* get color palette */ 2952 return get_palette(adp, ((struct fbcmap *)arg)->index, 2953 ((struct fbcmap *)arg)->count, 2954 ((struct fbcmap *)arg)->red, 2955 ((struct fbcmap *)arg)->green, 2956 ((struct fbcmap *)arg)->blue, NULL); 2957 2958 case FBIOPUTCMAP: /* set color palette */ 2959 return set_palette(adp, ((struct fbcmap *)arg)->index, 2960 ((struct fbcmap *)arg)->count, 2961 ((struct fbcmap *)arg)->red, 2962 ((struct fbcmap *)arg)->green, 2963 ((struct fbcmap *)arg)->blue, NULL); 2964 2965 default: 2966 return fb_commonioctl(adp, cmd, arg); 2967 } 2968} 2969 2970static void 2971dump_buffer(u_char *buf, size_t len) 2972{ 2973 int i; 2974 2975 for(i = 0; i < len;) { 2976 printf("%02x ", buf[i]); 2977 if ((++i % 16) == 0) 2978 printf("\n"); 2979 } 2980} 2981 2982/* 2983 * diag(): 2984 * Print some information about the video adapter and video modes, 2985 * with requested level of details. 2986 * 2987 * all adapters 2988 */ 2989static int 2990vga_diag(video_adapter_t *adp, int level) 2991{ 2992 u_char *mp; 2993#if FB_DEBUG > 1 2994 video_info_t info; 2995 int i; 2996#endif 2997 2998 if (!vga_init_done) 2999 return ENXIO; 3000 3001#if FB_DEBUG > 1 3002#ifndef VGA_NO_BIOS 3003 printf("vga: RTC equip. code:0x%02x, DCC code:0x%02x\n", 3004 rtcin(RTC_EQUIPMENT), readb(BIOS_PADDRTOVADDR(0x488))); 3005 printf("vga: CRTC:0x%x, video option:0x%02x, ", 3006 readw(BIOS_PADDRTOVADDR(0x463)), 3007 readb(BIOS_PADDRTOVADDR(0x487))); 3008 printf("rows:%d, cols:%d, font height:%d\n", 3009 readb(BIOS_PADDRTOVADDR(0x44a)), 3010 readb(BIOS_PADDRTOVADDR(0x484)) + 1, 3011 readb(BIOS_PADDRTOVADDR(0x485))); 3012#endif /* VGA_NO_BIOS */ 3013#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 3014 printf("vga: param table EGA/VGA:%p", video_mode_ptr); 3015 printf(", CGA/MDA:%p\n", video_mode_ptr2); 3016 printf("vga: rows_offset:%d\n", rows_offset); 3017#endif 3018#endif /* FB_DEBUG > 1 */ 3019 3020 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level); 3021 3022#if FB_DEBUG > 1 3023 if (adp->va_flags & V_ADP_MODECHANGE) { 3024 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 3025 if (bios_vmode[i].vi_mode == NA) 3026 continue; 3027 if (get_mode_param(bios_vmode[i].vi_mode) == NULL) 3028 continue; 3029 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level); 3030 } 3031 } else { 3032 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */ 3033 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level); 3034 } 3035#endif /* FB_DEBUG > 1 */ 3036 3037 if ((adp->va_type != KD_EGA) && (adp->va_type != KD_VGA)) 3038 return 0; 3039#if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 3040 if (video_mode_ptr == NULL) 3041 printf("vga%d: %s: WARNING: video mode switching is not " 3042 "fully supported on this adapter\n", 3043 adp->va_unit, adp->va_name); 3044#endif 3045 if (level <= 0) 3046 return 0; 3047 3048 if (adp->va_type == KD_VGA) { 3049 printf("VGA parameters upon power-up\n"); 3050 dump_buffer(adpstate.regs, sizeof(adpstate.regs)); 3051 printf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode); 3052 dump_buffer(adpstate2.regs, sizeof(adpstate2.regs)); 3053 } 3054 3055 mp = get_mode_param(adp->va_initial_mode); 3056 if (mp == NULL) /* this shouldn't be happening */ 3057 return 0; 3058 printf("EGA/VGA parameters to be used for mode %d\n", adp->va_initial_mode); 3059 dump_buffer(mp, V_MODE_PARAM_SIZE); 3060 3061 return 0; 3062} 3063