1 /*- 2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 3 * Copyright (c) 1992-1998 S�ren Schmidt 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer as 11 * the first lines of this file unmodified. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * $FreeBSD: src/sys/dev/fb/vga.c,v 1.9.2.1 2001/08/11 02:58:44 yokota Exp $ 30 * $DragonFly: src/sys/dev/video/fb/vga.c,v 1.23 2007/09/20 17:54:27 swildner Exp $ 31 */ 32 33 #include "opt_vga.h" 34 #include "opt_fb.h" 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/kernel.h> 39 #include <sys/conf.h> 40 #include <sys/fcntl.h> 41 #include <sys/malloc.h> 42 #include <sys/fbio.h> 43 #include <sys/thread2.h> 44 45 #include <bus/isa/isareg.h> 46 47 #include <machine/clock.h> 48 #include <machine/md_var.h> 49 #include <machine/pc/bios.h> 50 51 #include <vm/vm.h> 52 #include <vm/vm_param.h> 53 #include <vm/pmap.h> 54 55 #include "fbreg.h" 56 #include "vgareg.h" 57 58 #ifndef VGA_DEBUG 59 #define VGA_DEBUG 0 60 #endif 61 62 int 63 vga_probe_unit(int unit, video_adapter_t *buf, int flags) 64 { 65 video_adapter_t *adp; 66 video_switch_t *sw; 67 int error; 68 69 sw = vid_get_switch(VGA_DRIVER_NAME); 70 if (sw == NULL) 71 return 0; 72 error = (*sw->probe)(unit, &adp, NULL, flags); 73 if (error) 74 return error; 75 bcopy(adp, buf, sizeof(*buf)); 76 return 0; 77 } 78 79 int 80 vga_attach_unit(int unit, vga_softc_t *sc, int flags) 81 { 82 video_switch_t *sw; 83 int error; 84 85 sw = vid_get_switch(VGA_DRIVER_NAME); 86 if (sw == NULL) 87 return ENXIO; 88 89 error = (*sw->probe)(unit, &sc->adp, NULL, flags); 90 if (error) 91 return error; 92 return (*sw->init)(unit, sc->adp, flags); 93 } 94 95 /* cdev driver functions */ 96 97 #ifdef FB_INSTALL_CDEV 98 99 struct ucred; 100 101 int 102 vga_open(cdev_t dev, vga_softc_t *sc, int flag, int mode, struct ucred *cred) 103 { 104 if (sc == NULL) 105 return ENXIO; 106 if (mode & (O_CREAT | O_APPEND | O_TRUNC)) 107 return ENODEV; 108 109 return genfbopen(&sc->gensc, sc->adp, flag, mode, cred); 110 } 111 112 int 113 vga_close(cdev_t dev, vga_softc_t *sc, int flag, int mode) 114 { 115 return genfbclose(&sc->gensc, sc->adp, flag, mode); 116 } 117 118 int 119 vga_read(cdev_t dev, vga_softc_t *sc, struct uio *uio, int flag) 120 { 121 return genfbread(&sc->gensc, sc->adp, uio, flag); 122 } 123 124 int 125 vga_write(cdev_t dev, vga_softc_t *sc, struct uio *uio, int flag) 126 { 127 return genfbread(&sc->gensc, sc->adp, uio, flag); 128 } 129 130 int 131 vga_ioctl(cdev_t dev, vga_softc_t *sc, u_long cmd, caddr_t arg, int flag, 132 struct ucred *cred) 133 { 134 return genfbioctl(&sc->gensc, sc->adp, cmd, arg, flag, cred); 135 } 136 137 int 138 vga_mmap(cdev_t dev, vga_softc_t *sc, vm_offset_t offset, int prot) 139 { 140 return genfbmmap(&sc->gensc, sc->adp, offset, prot); 141 } 142 143 #endif /* FB_INSTALL_CDEV */ 144 145 /* LOW-LEVEL */ 146 147 #define probe_done(adp) ((adp)->va_flags & V_ADP_PROBED) 148 #define init_done(adp) ((adp)->va_flags & V_ADP_INITIALIZED) 149 #define config_done(adp) ((adp)->va_flags & V_ADP_REGISTERED) 150 151 /* this should really be in `rtc.h' */ 152 #define RTC_EQUIPMENT 0x14 153 154 /* various sizes */ 155 #define V_MODE_MAP_SIZE (M_VGA_CG320 + 1) 156 #define V_MODE_PARAM_SIZE 64 157 158 /* video adapter state buffer */ 159 struct adp_state { 160 int sig; 161 #define V_STATE_SIG 0x736f6962 162 u_char regs[V_MODE_PARAM_SIZE]; 163 }; 164 typedef struct adp_state adp_state_t; 165 166 /* video adapter information */ 167 #define DCC_MONO 0 168 #define DCC_CGA40 1 169 #define DCC_CGA80 2 170 #define DCC_EGAMONO 3 171 #define DCC_EGA40 4 172 #define DCC_EGA80 5 173 174 /* 175 * NOTE: `va_window' should have a virtual address, but is initialized 176 * with a physical address in the following table, as verify_adapter() 177 * will perform address conversion at run-time. 178 */ 179 static video_adapter_t adapter_init_value[] = { 180 /* DCC_MONO */ 181 { 0, KD_MONO, "mda", 0, 0, 0, IO_MDA, IO_MDASIZE, MONO_CRTC, 182 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 183 0, 0, 0, 0, 7, 0, }, 184 /* DCC_CGA40 */ 185 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 186 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 187 0, 0, 0, 0, 3, 0, }, 188 /* DCC_CGA80 */ 189 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 190 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 191 0, 0, 0, 0, 3, 0, }, 192 /* DCC_EGAMONO */ 193 { 0, KD_EGA, "ega", 0, 0, 0, IO_MDA, 48, MONO_CRTC, 194 EGA_BUF_BASE, EGA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 195 0, 0, 0, 0, 7, 0, }, 196 /* DCC_EGA40 */ 197 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 198 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 199 0, 0, 0, 0, 3, 0, }, 200 /* DCC_EGA80 */ 201 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 202 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 203 0, 0, 0, 0, 3, 0, }, 204 }; 205 206 static video_adapter_t biosadapter[2]; 207 static int biosadapters = 0; 208 209 /* video driver declarations */ 210 static int vga_configure(int flags); 211 int (*vga_sub_configure)(int flags); 212 #if 0 213 static int vga_nop(void); 214 #endif 215 static int vga_error(void); 216 static vi_probe_t vga_probe; 217 static vi_init_t vga_init; 218 static vi_get_info_t vga_get_info; 219 static vi_query_mode_t vga_query_mode; 220 static vi_set_mode_t vga_set_mode; 221 static vi_save_font_t vga_save_font; 222 static vi_load_font_t vga_load_font; 223 static vi_show_font_t vga_show_font; 224 static vi_save_palette_t vga_save_palette; 225 static vi_load_palette_t vga_load_palette; 226 static vi_set_border_t vga_set_border; 227 static vi_save_state_t vga_save_state; 228 static vi_load_state_t vga_load_state; 229 static vi_set_win_org_t vga_set_origin; 230 static vi_read_hw_cursor_t vga_read_hw_cursor; 231 static vi_set_hw_cursor_t vga_set_hw_cursor; 232 static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape; 233 static vi_blank_display_t vga_blank_display; 234 static vi_mmap_t vga_mmap_buf; 235 static vi_ioctl_t vga_dev_ioctl; 236 #ifndef VGA_NO_MODE_CHANGE 237 static vi_clear_t vga_clear; 238 static vi_fill_rect_t vga_fill_rect; 239 static vi_bitblt_t vga_bitblt; 240 #else /* VGA_NO_MODE_CHANGE */ 241 #define vga_clear (vi_clear_t *)vga_error 242 #define vga_fill_rect (vi_fill_rect_t *)vga_error 243 #define vga_bitblt (vi_bitblt_t *)vga_error 244 #endif 245 static vi_diag_t vga_diag; 246 247 static video_switch_t vgavidsw = { 248 vga_probe, 249 vga_init, 250 vga_get_info, 251 vga_query_mode, 252 vga_set_mode, 253 vga_save_font, 254 vga_load_font, 255 vga_show_font, 256 vga_save_palette, 257 vga_load_palette, 258 vga_set_border, 259 vga_save_state, 260 vga_load_state, 261 vga_set_origin, 262 vga_read_hw_cursor, 263 vga_set_hw_cursor, 264 vga_set_hw_cursor_shape, 265 vga_blank_display, 266 vga_mmap_buf, 267 vga_dev_ioctl, 268 vga_clear, 269 vga_fill_rect, 270 vga_bitblt, 271 vga_error, 272 vga_error, 273 vga_diag, 274 }; 275 276 VIDEO_DRIVER(mda, vgavidsw, NULL); 277 VIDEO_DRIVER(cga, vgavidsw, NULL); 278 VIDEO_DRIVER(ega, vgavidsw, NULL); 279 VIDEO_DRIVER(vga, vgavidsw, vga_configure); 280 281 /* VGA BIOS standard video modes */ 282 #define EOT (-1) 283 #define NA (-2) 284 285 static video_info_t bios_vmode[] = { 286 /* CGA */ 287 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1, 288 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 289 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1, 290 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 291 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1, 292 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 293 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1, 294 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 295 /* EGA */ 296 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1, 297 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 298 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1, 299 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 300 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1, 301 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 302 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1, 303 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 304 /* VGA */ 305 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1, 306 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 307 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1, 308 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 309 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1, 310 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 311 /* MDA */ 312 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1, 313 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 314 /* EGA */ 315 { M_ENH_B80x43, 0, 80, 43, 8, 8, 2, 1, 316 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 317 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1, 318 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 319 /* VGA */ 320 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1, 321 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 322 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1, 323 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 324 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1, 325 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 326 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1, 327 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 328 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1, 329 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 330 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1, 331 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 332 333 #ifndef VGA_NO_MODE_CHANGE 334 335 #ifdef VGA_WIDTH90 336 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1, 337 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 338 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1, 339 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 340 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1, 341 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 342 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1, 343 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 344 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1, 345 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 346 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1, 347 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 348 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1, 349 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 350 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1, 351 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 352 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1, 353 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 354 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1, 355 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 356 #endif /* VGA_WIDTH90 */ 357 358 /* CGA */ 359 { M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 360 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 361 { M_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 362 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 363 { M_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1, 364 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 365 /* EGA */ 366 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4, 367 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 368 V_INFO_MM_PLANAR }, 369 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4, 370 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 371 V_INFO_MM_PLANAR }, 372 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 373 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 , 374 V_INFO_MM_PLANAR }, 375 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 376 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 377 V_INFO_MM_PLANAR }, 378 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2, 379 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 380 V_INFO_MM_PLANAR }, 381 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 382 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 383 V_INFO_MM_PLANAR }, 384 /* VGA */ 385 { M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 386 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 387 V_INFO_MM_PLANAR }, 388 { M_CG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 389 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 390 V_INFO_MM_PLANAR }, 391 { M_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1, 392 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 393 V_INFO_MM_PACKED, 1 }, 394 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 4, 395 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 396 V_INFO_MM_VGAX, 1 }, 397 #endif /* VGA_NO_MODE_CHANGE */ 398 399 { EOT }, 400 }; 401 402 static int vga_init_done = FALSE; 403 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 404 static u_char *video_mode_ptr = NULL; /* EGA/VGA */ 405 static u_char *video_mode_ptr2 = NULL; /* CGA/MDA */ 406 #endif 407 static u_char *mode_map[V_MODE_MAP_SIZE]; 408 static adp_state_t adpstate; 409 static adp_state_t adpstate2; 410 static int rows_offset = 1; 411 412 /* local macros and functions */ 413 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 414 415 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 416 static void map_mode_table(u_char **, u_char *, int); 417 #endif 418 static void clear_mode_map(video_adapter_t *, u_char **, int, int); 419 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 420 static int map_mode_num(int); 421 #endif 422 static int map_bios_mode_num(int, int, int); 423 static u_char *get_mode_param(int); 424 #ifndef VGA_NO_BIOS 425 static void fill_adapter_param(int, video_adapter_t *); 426 #endif 427 static int verify_adapter(video_adapter_t *); 428 static void update_adapter_info(video_adapter_t *, video_info_t *); 429 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 430 #define COMP_IDENTICAL 0 431 #define COMP_SIMILAR 1 432 #define COMP_DIFFERENT 2 433 static int comp_adpregs(u_char *, u_char *); 434 #endif 435 static int probe_adapters(void); 436 static int set_line_length(video_adapter_t *, int); 437 static int set_display_start(video_adapter_t *, int, int); 438 439 #ifndef VGA_NO_MODE_CHANGE 440 #ifdef VGA_WIDTH90 441 static void set_width90(adp_state_t *); 442 #endif 443 #endif /* !VGA_NO_MODE_CHANGE */ 444 445 #ifndef VGA_NO_FONT_LOADING 446 #define PARAM_BUFSIZE 6 447 static void set_font_mode(video_adapter_t *, u_char *); 448 static void set_normal_mode(video_adapter_t *, u_char *); 449 #endif 450 451 #ifndef VGA_NO_MODE_CHANGE 452 static void filll_io(int, vm_offset_t, size_t); 453 static void planar_fill(video_adapter_t *, int); 454 static void packed_fill(video_adapter_t *, int); 455 static void direct_fill(video_adapter_t *, int); 456 #ifdef notyet 457 static void planar_fill_rect(video_adapter_t *, int, int, int, int, int); 458 static void packed_fill_rect(video_adapter_t *, int, int, int, int, int); 459 static void direct_fill_rect16(video_adapter_t *, int, int, int, int, int); 460 static void direct_fill_rect24(video_adapter_t *, int, int, int, int, int); 461 static void direct_fill_rect32(video_adapter_t *, int, int, int, int, int); 462 #endif /* notyet */ 463 #endif /* !VGA_NO_MODE_CHANGE */ 464 465 static void dump_buffer(u_char *, size_t); 466 467 #define ISMAPPED(pa, width) \ 468 (((pa) <= (u_long)0x1000 - (width)) \ 469 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width))) 470 471 #define prologue(adp, flag, err) \ 472 if (!vga_init_done || !((adp)->va_flags & (flag))) \ 473 return (err) 474 475 /* a backdoor for the console driver */ 476 static int 477 vga_configure(int flags) 478 { 479 int i; 480 481 probe_adapters(); 482 for (i = 0; i < biosadapters; ++i) { 483 if (!probe_done(&biosadapter[i])) 484 continue; 485 biosadapter[i].va_flags |= V_ADP_INITIALIZED; 486 if (!config_done(&biosadapter[i])) { 487 if (vid_register(&biosadapter[i]) < 0) 488 continue; 489 biosadapter[i].va_flags |= V_ADP_REGISTERED; 490 } 491 } 492 if (vga_sub_configure != NULL) 493 (*vga_sub_configure)(flags); 494 495 return biosadapters; 496 } 497 498 /* local subroutines */ 499 500 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 501 /* construct the mode parameter map */ 502 static void 503 map_mode_table(u_char *map[], u_char *table, int max) 504 { 505 int i; 506 507 for(i = 0; i < max; ++i) 508 map[i] = table + i*V_MODE_PARAM_SIZE; 509 for(; i < V_MODE_MAP_SIZE; ++i) 510 map[i] = NULL; 511 } 512 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 513 514 static void 515 clear_mode_map(video_adapter_t *adp, u_char *map[], int max, int color) 516 { 517 video_info_t info; 518 int i; 519 520 /* 521 * NOTE: we don't touch `bios_vmode[]' because it is shared 522 * by all adapters. 523 */ 524 for(i = 0; i < max; ++i) { 525 if (vga_get_info(adp, i, &info)) 526 continue; 527 if ((info.vi_flags & V_INFO_COLOR) != color) 528 map[i] = NULL; 529 } 530 } 531 532 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 533 /* map the non-standard video mode to a known mode number */ 534 static int 535 map_mode_num(int mode) 536 { 537 static struct { 538 int from; 539 int to; 540 } mode_map[] = { 541 { M_ENH_B80x43, M_ENH_B80x25 }, 542 { M_ENH_C80x43, M_ENH_C80x25 }, 543 { M_VGA_M80x30, M_VGA_M80x25 }, 544 { M_VGA_C80x30, M_VGA_C80x25 }, 545 { M_VGA_M80x50, M_VGA_M80x25 }, 546 { M_VGA_C80x50, M_VGA_C80x25 }, 547 { M_VGA_M80x60, M_VGA_M80x25 }, 548 { M_VGA_C80x60, M_VGA_C80x25 }, 549 #ifdef VGA_WIDTH90 550 { M_VGA_M90x25, M_VGA_M80x25 }, 551 { M_VGA_C90x25, M_VGA_C80x25 }, 552 { M_VGA_M90x30, M_VGA_M80x25 }, 553 { M_VGA_C90x30, M_VGA_C80x25 }, 554 { M_VGA_M90x43, M_ENH_B80x25 }, 555 { M_VGA_C90x43, M_ENH_C80x25 }, 556 { M_VGA_M90x50, M_VGA_M80x25 }, 557 { M_VGA_C90x50, M_VGA_C80x25 }, 558 { M_VGA_M90x60, M_VGA_M80x25 }, 559 { M_VGA_C90x60, M_VGA_C80x25 }, 560 #endif 561 { M_VGA_MODEX, M_VGA_CG320 }, 562 }; 563 int i; 564 565 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 566 if (mode_map[i].from == mode) 567 return mode_map[i].to; 568 } 569 return mode; 570 } 571 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 572 573 /* turn the BIOS video number into our video mode number */ 574 static int 575 map_bios_mode_num(int type, int color, int bios_mode) 576 { 577 static int cga_modes[7] = { 578 M_B40x25, M_C40x25, /* 0, 1 */ 579 M_B80x25, M_C80x25, /* 2, 3 */ 580 M_BG320, M_CG320, 581 M_BG640, 582 }; 583 static int ega_modes[17] = { 584 M_ENH_B40x25, M_ENH_C40x25, /* 0, 1 */ 585 M_ENH_B80x25, M_ENH_C80x25, /* 2, 3 */ 586 M_BG320, M_CG320, 587 M_BG640, 588 M_EGAMONO80x25, /* 7 */ 589 8, 9, 10, 11, 12, 590 M_CG320_D, 591 M_CG640_E, 592 M_ENHMONOAPA2, /* XXX: video momery > 64K */ 593 M_ENH_CG640, /* XXX: video momery > 64K */ 594 }; 595 static int vga_modes[20] = { 596 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */ 597 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */ 598 M_BG320, M_CG320, 599 M_BG640, 600 M_VGA_M80x25, /* 7 */ 601 8, 9, 10, 11, 12, 602 M_CG320_D, 603 M_CG640_E, 604 M_ENHMONOAPA2, 605 M_ENH_CG640, 606 M_BG640x480, M_CG640x480, 607 M_VGA_CG320, 608 }; 609 610 switch (type) { 611 612 case KD_VGA: 613 if (bios_mode < sizeof(vga_modes)/sizeof(vga_modes[0])) 614 return vga_modes[bios_mode]; 615 else if (color) 616 return M_VGA_C80x25; 617 else 618 return M_VGA_M80x25; 619 break; 620 621 case KD_EGA: 622 if (bios_mode < sizeof(ega_modes)/sizeof(ega_modes[0])) 623 return ega_modes[bios_mode]; 624 else if (color) 625 return M_ENH_C80x25; 626 else 627 return M_EGAMONO80x25; 628 break; 629 630 case KD_CGA: 631 if (bios_mode < sizeof(cga_modes)/sizeof(cga_modes[0])) 632 return cga_modes[bios_mode]; 633 else 634 return M_C80x25; 635 break; 636 637 case KD_MONO: 638 case KD_HERCULES: 639 return M_EGAMONO80x25; /* XXX: this name is confusing */ 640 641 default: 642 break; 643 } 644 return -1; 645 } 646 647 /* look up a parameter table entry */ 648 static u_char * 649 get_mode_param(int mode) 650 { 651 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 652 if (mode >= V_MODE_MAP_SIZE) 653 mode = map_mode_num(mode); 654 #endif 655 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE)) 656 return mode_map[mode]; 657 else 658 return NULL; 659 } 660 661 #ifndef VGA_NO_BIOS 662 static void 663 fill_adapter_param(int code, video_adapter_t *adp) 664 { 665 static struct { 666 int primary; 667 int secondary; 668 } dcc[] = { 669 { DCC_MONO, DCC_EGA40 /* CGA monitor */ }, 670 { DCC_MONO, DCC_EGA80 /* CGA monitor */ }, 671 { DCC_MONO, DCC_EGA80 }, 672 { DCC_MONO, DCC_EGA80 }, 673 { DCC_CGA40, DCC_EGAMONO }, 674 { DCC_CGA80, DCC_EGAMONO }, 675 { DCC_EGA40 /* CGA monitor */, DCC_MONO}, 676 { DCC_EGA80 /* CGA monitor */, DCC_MONO}, 677 { DCC_EGA80, DCC_MONO }, 678 { DCC_EGA80, DCC_MONO }, 679 { DCC_EGAMONO, DCC_CGA40 }, 680 { DCC_EGAMONO, DCC_CGA80 }, 681 }; 682 683 if ((code < 0) || (code >= sizeof(dcc)/sizeof(dcc[0]))) { 684 adp[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 685 adp[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 686 } else { 687 adp[V_ADP_PRIMARY] = adapter_init_value[dcc[code].primary]; 688 adp[V_ADP_SECONDARY] = adapter_init_value[dcc[code].secondary]; 689 } 690 } 691 #endif /* VGA_NO_BIOS */ 692 693 static int 694 verify_adapter(video_adapter_t *adp) 695 { 696 vm_offset_t buf; 697 u_int16_t v; 698 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 699 u_int32_t p; 700 #endif 701 702 buf = BIOS_PADDRTOVADDR(adp->va_window); 703 v = readw(buf); 704 writew(buf, 0xA55A); 705 if (readw(buf) != 0xA55A) 706 return ENXIO; 707 writew(buf, v); 708 709 switch (adp->va_type) { 710 711 case KD_EGA: 712 outb(adp->va_crtc_addr, 7); 713 if (inb(adp->va_crtc_addr) == 7) { 714 adp->va_type = KD_VGA; 715 adp->va_name = "vga"; 716 adp->va_flags |= V_ADP_STATESAVE | V_ADP_PALETTE; 717 } 718 adp->va_flags |= V_ADP_STATELOAD | V_ADP_BORDER; 719 /* the color adapter may be in the 40x25 mode... XXX */ 720 721 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 722 /* get the BIOS video mode pointer */ 723 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8); 724 p = BIOS_SADDRTOLADDR(p); 725 if (ISMAPPED(p, sizeof(u_int32_t))) { 726 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p); 727 p = BIOS_SADDRTOLADDR(p); 728 if (ISMAPPED(p, V_MODE_PARAM_SIZE)) 729 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p); 730 } 731 #endif 732 break; 733 734 case KD_CGA: 735 adp->va_flags |= V_ADP_COLOR | V_ADP_BORDER; 736 /* may be in the 40x25 mode... XXX */ 737 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 738 /* get the BIOS video mode pointer */ 739 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 740 p = BIOS_SADDRTOLADDR(p); 741 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 742 #endif 743 break; 744 745 case KD_MONO: 746 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 747 /* get the BIOS video mode pointer */ 748 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 749 p = BIOS_SADDRTOLADDR(p); 750 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 751 #endif 752 break; 753 } 754 755 return 0; 756 } 757 758 static void 759 update_adapter_info(video_adapter_t *adp, video_info_t *info) 760 { 761 adp->va_flags &= ~V_ADP_COLOR; 762 adp->va_flags |= 763 (info->vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; 764 adp->va_crtc_addr = 765 (adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; 766 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window); 767 adp->va_window_size = info->vi_window_size; 768 adp->va_window_gran = info->vi_window_gran; 769 adp->va_window_orig = 0; 770 /* XXX */ 771 adp->va_buffer = info->vi_buffer; 772 adp->va_buffer_size = info->vi_buffer_size; 773 if (info->vi_mem_model == V_INFO_MM_VGAX) { 774 adp->va_line_width = info->vi_width/2; 775 } else if (info->vi_flags & V_INFO_GRAPHICS) { 776 switch (info->vi_depth/info->vi_planes) { 777 case 1: 778 adp->va_line_width = info->vi_width/8; 779 break; 780 case 2: 781 adp->va_line_width = info->vi_width/4; 782 break; 783 case 4: 784 adp->va_line_width = info->vi_width/2; 785 break; 786 case 8: 787 default: /* shouldn't happen */ 788 adp->va_line_width = info->vi_width; 789 break; 790 } 791 } else { 792 adp->va_line_width = info->vi_width; 793 } 794 adp->va_disp_start.x = 0; 795 adp->va_disp_start.y = 0; 796 bcopy(info, &adp->va_info, sizeof(adp->va_info)); 797 } 798 799 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 800 /* compare two parameter table entries */ 801 static int 802 comp_adpregs(u_char *buf1, u_char *buf2) 803 { 804 static struct { 805 u_char mask; 806 } params[V_MODE_PARAM_SIZE] = { 807 {0xff}, {0x00}, {0xff}, /* COLS}, ROWS}, POINTS */ 808 {0x00}, {0x00}, /* page length */ 809 {0xfe}, {0xff}, {0xff}, {0xff}, /* sequencer registers */ 810 {0xf3}, /* misc register */ 811 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, /* CRTC */ 812 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, 813 {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, 814 {0x00}, {0xff}, {0x7f}, {0xff}, {0xff}, 815 {0x7f}, {0xff}, {0xff}, {0xef}, {0xff}, 816 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* attribute controller regs */ 817 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 818 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 819 {0xff}, {0xff}, {0xff}, {0xff}, {0xf0}, 820 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* GDC register */ 821 {0xff}, {0xff}, {0xff}, {0xff}, 822 }; 823 int identical = TRUE; 824 int i; 825 826 if ((buf1 == NULL) || (buf2 == NULL)) 827 return COMP_DIFFERENT; 828 829 for (i = 0; i < sizeof(params)/sizeof(params[0]); ++i) { 830 if (params[i].mask == 0) /* don't care */ 831 continue; 832 if ((buf1[i] & params[i].mask) != (buf2[i] & params[i].mask)) 833 return COMP_DIFFERENT; 834 if (buf1[i] != buf2[i]) 835 identical = FALSE; 836 } 837 return (identical) ? COMP_IDENTICAL : COMP_SIMILAR; 838 } 839 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 840 841 /* probe video adapters and return the number of detected adapters */ 842 static int 843 probe_adapters(void) 844 { 845 video_adapter_t *adp; 846 video_info_t info; 847 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 848 u_char *mp; 849 #endif 850 int i; 851 852 /* do this test only once */ 853 if (vga_init_done) 854 return biosadapters; 855 vga_init_done = TRUE; 856 857 /* 858 * Locate display adapters. 859 * The AT architecture supports upto two adapters. `syscons' allows 860 * the following combinations of adapters: 861 * 1) MDA + CGA 862 * 2) MDA + EGA/VGA color 863 * 3) CGA + EGA/VGA mono 864 * Note that `syscons' doesn't bother with MCGA as it is only 865 * avaiable for low end PS/2 models which has 80286 or earlier CPUs, 866 * thus, they are not running FreeBSD! 867 * When there are two adapaters in the system, one becomes `primary' 868 * and the other `secondary'. The EGA adapter has a set of DIP 869 * switches on board for this information and the EGA BIOS copies 870 * it in the BIOS data area BIOSDATA_VIDEOSWITCH (40:88). 871 * The VGA BIOS has more sophisticated mechanism and has this 872 * information in BIOSDATA_DCCINDEX (40:8a), but it also maintains 873 * compatibility with the EGA BIOS by updating BIOSDATA_VIDEOSWITCH. 874 */ 875 876 /* 877 * Check rtc and BIOS data area. 878 * XXX: we don't use BIOSDATA_EQUIPMENT, since it is not a dead 879 * copy of RTC_EQUIPMENT. Bits 4 and 5 of ETC_EQUIPMENT are 880 * zeros for EGA and VGA. However, the EGA/VGA BIOS sets 881 * these bits in BIOSDATA_EQUIPMENT according to the monitor 882 * type detected. 883 */ 884 #ifndef VGA_NO_BIOS 885 if (*(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8)) { 886 /* EGA/VGA BIOS is present */ 887 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 888 biosadapter); 889 } else { 890 switch ((rtcin(RTC_EQUIPMENT) >> 4) & 3) { /* bit 4 and 5 */ 891 case 0: 892 /* EGA/VGA: shouldn't be happening */ 893 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 894 biosadapter); 895 break; 896 case 1: 897 /* CGA 40x25 */ 898 /* FIXME: switch to the 80x25 mode? XXX */ 899 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA40]; 900 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 901 break; 902 case 2: 903 /* CGA 80x25 */ 904 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA80]; 905 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 906 break; 907 case 3: 908 /* MDA */ 909 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 910 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 911 break; 912 } 913 } 914 #else 915 /* assume EGA/VGA? XXX */ 916 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_EGA80]; 917 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 918 #endif /* VGA_NO_BIOS */ 919 920 biosadapters = 0; 921 if (verify_adapter(&biosadapter[V_ADP_SECONDARY]) == 0) { 922 ++biosadapters; 923 biosadapter[V_ADP_SECONDARY].va_flags |= V_ADP_PROBED; 924 biosadapter[V_ADP_SECONDARY].va_mode = 925 biosadapter[V_ADP_SECONDARY].va_initial_mode = 926 map_bios_mode_num(biosadapter[V_ADP_SECONDARY].va_type, 927 biosadapter[V_ADP_SECONDARY].va_flags 928 & V_ADP_COLOR, 929 biosadapter[V_ADP_SECONDARY].va_initial_bios_mode); 930 } else { 931 biosadapter[V_ADP_SECONDARY].va_type = -1; 932 } 933 if (verify_adapter(&biosadapter[V_ADP_PRIMARY]) == 0) { 934 ++biosadapters; 935 biosadapter[V_ADP_PRIMARY].va_flags |= V_ADP_PROBED; 936 #ifndef VGA_NO_BIOS 937 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 938 readb(BIOS_PADDRTOVADDR(0x449)); 939 #else 940 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 3; /* XXX */ 941 #endif 942 biosadapter[V_ADP_PRIMARY].va_mode = 943 biosadapter[V_ADP_PRIMARY].va_initial_mode = 944 map_bios_mode_num(biosadapter[V_ADP_PRIMARY].va_type, 945 biosadapter[V_ADP_PRIMARY].va_flags & V_ADP_COLOR, 946 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode); 947 } else { 948 biosadapter[V_ADP_PRIMARY] = biosadapter[V_ADP_SECONDARY]; 949 biosadapter[V_ADP_SECONDARY].va_type = -1; 950 } 951 if (biosadapters == 0) 952 return biosadapters; 953 biosadapter[V_ADP_PRIMARY].va_unit = V_ADP_PRIMARY; 954 biosadapter[V_ADP_SECONDARY].va_unit = V_ADP_SECONDARY; 955 956 #if 0 /* we don't need these... */ 957 fb_init_struct(&biosadapter[V_ADP_PRIMARY], ...); 958 fb_init_struct(&biosadapter[V_ADP_SECONDARY], ...); 959 #endif 960 961 #if notyet 962 /* 963 * We cannot have two video adapter of the same type; there must be 964 * only one of color or mono adapter, or one each of them. 965 */ 966 if (biosadapters > 1) { 967 if (!((biosadapter[0].va_flags ^ biosadapter[1].va_flags) 968 & V_ADP_COLOR)) 969 /* we have two mono or color adapters!! */ 970 return (biosadapters = 0); 971 } 972 #endif 973 974 /* 975 * Ensure a zero start address. This is mainly to recover after 976 * switching from pcvt using userconfig(). The registers are w/o 977 * for old hardware so it's too hard to relocate the active screen 978 * memory. 979 * This must be done before vga_save_state() for VGA. 980 */ 981 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 12); 982 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 983 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 13); 984 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 985 986 /* the video mode parameter table in EGA/VGA BIOS */ 987 /* NOTE: there can be only one EGA/VGA, wheather color or mono, 988 * recognized by the video BIOS. 989 */ 990 if ((biosadapter[V_ADP_PRIMARY].va_type == KD_EGA) || 991 (biosadapter[V_ADP_PRIMARY].va_type == KD_VGA)) { 992 adp = &biosadapter[V_ADP_PRIMARY]; 993 } else if ((biosadapter[V_ADP_SECONDARY].va_type == KD_EGA) || 994 (biosadapter[V_ADP_SECONDARY].va_type == KD_VGA)) { 995 adp = &biosadapter[V_ADP_SECONDARY]; 996 } else { 997 adp = NULL; 998 } 999 bzero(mode_map, sizeof(mode_map)); 1000 if (adp != NULL) { 1001 if (adp->va_type == KD_VGA) { 1002 vga_save_state(adp, &adpstate, sizeof(adpstate)); 1003 for(i = 0; i < 16; i++) 1004 adp->va_palette_regs[i] = adpstate.regs[35 + i]; 1005 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1006 mode_map[adp->va_initial_mode] = adpstate.regs; 1007 rows_offset = 1; 1008 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1009 if (video_mode_ptr == NULL) { 1010 mode_map[adp->va_initial_mode] = adpstate.regs; 1011 rows_offset = 1; 1012 } else { 1013 /* discard the table if we are not familiar with it... */ 1014 map_mode_table(mode_map, video_mode_ptr, M_VGA_CG320 + 1); 1015 mp = get_mode_param(adp->va_initial_mode); 1016 if (mp != NULL) 1017 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs)); 1018 switch (comp_adpregs(adpstate.regs, mp)) { 1019 case COMP_IDENTICAL: 1020 /* 1021 * OK, this parameter table looks reasonably familiar 1022 * to us... 1023 */ 1024 /* 1025 * This is a kludge for Toshiba DynaBook SS433 1026 * whose BIOS video mode table entry has the actual # 1027 * of rows at the offset 1; BIOSes from other 1028 * manufacturers store the # of rows - 1 there. XXX 1029 */ 1030 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1031 break; 1032 1033 case COMP_SIMILAR: 1034 /* 1035 * Not exactly the same, but similar enough to be 1036 * trusted. However, use the saved register values 1037 * for the initial mode and other modes which are 1038 * based on the initial mode. 1039 */ 1040 mode_map[adp->va_initial_mode] = adpstate.regs; 1041 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1042 adpstate.regs[1] -= rows_offset - 1; 1043 break; 1044 1045 case COMP_DIFFERENT: 1046 default: 1047 /* 1048 * Don't use the paramter table in BIOS. It doesn't 1049 * look familiar to us. Video mode switching is allowed 1050 * only if the new mode is the same as or based on 1051 * the initial mode. 1052 */ 1053 video_mode_ptr = NULL; 1054 bzero(mode_map, sizeof(mode_map)); 1055 mode_map[adp->va_initial_mode] = adpstate.regs; 1056 rows_offset = 1; 1057 break; 1058 } 1059 } 1060 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1061 1062 #ifndef VGA_NO_MODE_CHANGE 1063 adp->va_flags |= V_ADP_MODECHANGE; 1064 #endif 1065 #ifndef VGA_NO_FONT_LOADING 1066 adp->va_flags |= V_ADP_FONT; 1067 #endif 1068 } else if (adp->va_type == KD_EGA) { 1069 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1070 rows_offset = 1; 1071 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1072 if (video_mode_ptr == NULL) { 1073 rows_offset = 1; 1074 } else { 1075 map_mode_table(mode_map, video_mode_ptr, M_ENH_C80x25 + 1); 1076 /* XXX how can one validate the EGA table... */ 1077 mp = get_mode_param(adp->va_initial_mode); 1078 if (mp != NULL) { 1079 adp->va_flags |= V_ADP_MODECHANGE; 1080 #ifndef VGA_NO_FONT_LOADING 1081 adp->va_flags |= V_ADP_FONT; 1082 #endif 1083 rows_offset = 1; 1084 } else { 1085 /* 1086 * This is serious. We will not be able to switch video 1087 * modes at all... 1088 */ 1089 video_mode_ptr = NULL; 1090 bzero(mode_map, sizeof(mode_map)); 1091 rows_offset = 1; 1092 } 1093 } 1094 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1095 } 1096 } 1097 1098 /* remove conflicting modes if we have more than one adapter */ 1099 if (biosadapters > 0) { 1100 for (i = 0; i < biosadapters; ++i) { 1101 if (!(biosadapter[i].va_flags & V_ADP_MODECHANGE)) 1102 continue; 1103 clear_mode_map(&biosadapter[i], mode_map, M_VGA_CG320 + 1, 1104 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1105 V_INFO_COLOR : 0); 1106 if ((biosadapter[i].va_type == KD_VGA) 1107 || (biosadapter[i].va_type == KD_EGA)) { 1108 biosadapter[i].va_io_base = 1109 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1110 IO_VGA : IO_MDA; 1111 biosadapter[i].va_io_size = 32; 1112 } 1113 } 1114 } 1115 1116 /* buffer address */ 1117 vga_get_info(&biosadapter[V_ADP_PRIMARY], 1118 biosadapter[V_ADP_PRIMARY].va_initial_mode, &info); 1119 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1120 update_adapter_info(&biosadapter[V_ADP_PRIMARY], &info); 1121 1122 if (biosadapters > 1) { 1123 vga_get_info(&biosadapter[V_ADP_SECONDARY], 1124 biosadapter[V_ADP_SECONDARY].va_initial_mode, &info); 1125 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1126 update_adapter_info(&biosadapter[V_ADP_SECONDARY], &info); 1127 } 1128 1129 /* 1130 * XXX: we should verify the following values for the primary adapter... 1131 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463); 1132 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02) 1133 * ? 0 : V_ADP_COLOR; 1134 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a); 1135 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484); 1136 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485); 1137 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c); 1138 */ 1139 1140 return biosadapters; 1141 } 1142 1143 /* set the scan line length in pixel */ 1144 static int 1145 set_line_length(video_adapter_t *adp, int pixel) 1146 { 1147 u_char *mp; 1148 int ppw; /* pixels per word */ 1149 int bpl; /* bytes per line */ 1150 int count; 1151 1152 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1153 return ENODEV; 1154 mp = get_mode_param(adp->va_mode); 1155 if (mp == NULL) 1156 return EINVAL; 1157 1158 switch (adp->va_info.vi_mem_model) { 1159 case V_INFO_MM_PLANAR: 1160 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1161 count = (pixel + ppw - 1)/ppw/2; 1162 bpl = ((pixel + ppw - 1)/ppw/2)*4; 1163 break; 1164 case V_INFO_MM_PACKED: 1165 count = (pixel + 7)/8; 1166 bpl = ((pixel + 7)/8)*8; 1167 break; 1168 case V_INFO_MM_TEXT: 1169 count = (pixel + 7)/8; /* columns */ 1170 bpl = (pixel + 7)/8; /* columns */ 1171 break; 1172 default: 1173 return ENODEV; 1174 } 1175 1176 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */ 1177 count *= 2; /* byte mode */ 1178 outb(adp->va_crtc_addr, 0x13); 1179 outb(adp->va_crtc_addr + 1, count); 1180 adp->va_line_width = bpl; 1181 1182 return 0; 1183 } 1184 1185 static int 1186 set_display_start(video_adapter_t *adp, int x, int y) 1187 { 1188 int off; /* byte offset (graphics mode)/word offset (text mode) */ 1189 int poff; /* pixel offset */ 1190 int roff; /* row offset */ 1191 int ppb; /* pixels per byte */ 1192 1193 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1194 x &= ~7; 1195 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) { 1196 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1197 off = y*adp->va_line_width + x/ppb; 1198 roff = 0; 1199 poff = x%ppb; 1200 } else { 1201 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1202 outb(TSIDX, 1); 1203 if (inb(TSREG) & 1) 1204 ppb = 9; 1205 else 1206 ppb = 8; 1207 } else { 1208 ppb = 8; 1209 } 1210 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb; 1211 roff = y%adp->va_info.vi_cheight; 1212 /* FIXME: is this correct? XXX */ 1213 if (ppb == 8) 1214 poff = x%ppb; 1215 else 1216 poff = (x + 8)%ppb; 1217 } 1218 1219 /* start address */ 1220 outb(adp->va_crtc_addr, 0xc); /* high */ 1221 outb(adp->va_crtc_addr + 1, off >> 8); 1222 outb(adp->va_crtc_addr, 0xd); /* low */ 1223 outb(adp->va_crtc_addr + 1, off & 0xff); 1224 1225 /* horizontal pel pan */ 1226 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1227 inb(adp->va_crtc_addr + 6); 1228 outb(ATC, 0x13 | 0x20); 1229 outb(ATC, poff); 1230 inb(adp->va_crtc_addr + 6); 1231 outb(ATC, 0x20); 1232 } 1233 1234 /* preset raw scan */ 1235 outb(adp->va_crtc_addr, 8); 1236 outb(adp->va_crtc_addr + 1, roff); 1237 1238 adp->va_disp_start.x = x; 1239 adp->va_disp_start.y = y; 1240 return 0; 1241 } 1242 1243 #ifndef VGA_NO_MODE_CHANGE 1244 #ifdef __i386__ /* XXX */ 1245 static void 1246 fill(int val, void *d, size_t size) 1247 { 1248 u_char *p = d; 1249 1250 while (size-- > 0) 1251 *p++ = val; 1252 } 1253 #endif /* __i386__ */ 1254 1255 static void 1256 filll_io(int val, vm_offset_t d, size_t size) 1257 { 1258 while (size-- > 0) { 1259 writel(d, val); 1260 d += sizeof(u_int32_t); 1261 } 1262 } 1263 #endif /* !VGA_NO_MODE_CHANGE */ 1264 1265 /* entry points */ 1266 1267 #if 0 1268 static int 1269 vga_nop(void) 1270 { 1271 return 0; 1272 } 1273 #endif 1274 1275 static int 1276 vga_error(void) 1277 { 1278 return ENODEV; 1279 } 1280 1281 static int 1282 vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 1283 { 1284 probe_adapters(); 1285 if (unit >= biosadapters) 1286 return ENXIO; 1287 1288 *adpp = &biosadapter[unit]; 1289 1290 return 0; 1291 } 1292 1293 static int 1294 vga_init(int unit, video_adapter_t *adp, int flags) 1295 { 1296 if ((unit >= biosadapters) || (adp == NULL) || !probe_done(adp)) 1297 return ENXIO; 1298 1299 if (!init_done(adp)) { 1300 /* nothing to do really... */ 1301 adp->va_flags |= V_ADP_INITIALIZED; 1302 } 1303 1304 if (!config_done(adp)) { 1305 if (vid_register(adp) < 0) 1306 return ENXIO; 1307 adp->va_flags |= V_ADP_REGISTERED; 1308 } 1309 if (vga_sub_configure != NULL) 1310 (*vga_sub_configure)(0); 1311 1312 return 0; 1313 } 1314 1315 /* 1316 * get_info(): 1317 * Return the video_info structure of the requested video mode. 1318 * 1319 * all adapters 1320 */ 1321 static int 1322 vga_get_info(video_adapter_t *adp, int mode, video_info_t *info) 1323 { 1324 int i; 1325 1326 if (!vga_init_done) 1327 return ENXIO; 1328 1329 #ifndef VGA_NO_MODE_CHANGE 1330 if (adp->va_flags & V_ADP_MODECHANGE) { 1331 /* 1332 * If the parameter table entry for this mode is not found, 1333 * the mode is not supported... 1334 */ 1335 if (get_mode_param(mode) == NULL) 1336 return EINVAL; 1337 } else 1338 #endif /* VGA_NO_MODE_CHANGE */ 1339 { 1340 /* 1341 * Even if we don't support video mode switching on this adapter, 1342 * the information on the initial (thus current) video mode 1343 * should be made available. 1344 */ 1345 if (mode != adp->va_initial_mode) 1346 return EINVAL; 1347 } 1348 1349 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1350 if (bios_vmode[i].vi_mode == NA) 1351 continue; 1352 if (mode == bios_vmode[i].vi_mode) { 1353 *info = bios_vmode[i]; 1354 /* XXX */ 1355 info->vi_buffer_size = info->vi_window_size*info->vi_planes; 1356 return 0; 1357 } 1358 } 1359 return EINVAL; 1360 } 1361 1362 /* 1363 * query_mode(): 1364 * Find a video mode matching the requested parameters. 1365 * Fields filled with 0 are considered "don't care" fields and 1366 * match any modes. 1367 * 1368 * all adapters 1369 */ 1370 static int 1371 vga_query_mode(video_adapter_t *adp, video_info_t *info) 1372 { 1373 int i; 1374 1375 if (!vga_init_done) 1376 return ENXIO; 1377 1378 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1379 if (bios_vmode[i].vi_mode == NA) 1380 continue; 1381 1382 if ((info->vi_width != 0) 1383 && (info->vi_width != bios_vmode[i].vi_width)) 1384 continue; 1385 if ((info->vi_height != 0) 1386 && (info->vi_height != bios_vmode[i].vi_height)) 1387 continue; 1388 if ((info->vi_cwidth != 0) 1389 && (info->vi_cwidth != bios_vmode[i].vi_cwidth)) 1390 continue; 1391 if ((info->vi_cheight != 0) 1392 && (info->vi_cheight != bios_vmode[i].vi_cheight)) 1393 continue; 1394 if ((info->vi_depth != 0) 1395 && (info->vi_depth != bios_vmode[i].vi_depth)) 1396 continue; 1397 if ((info->vi_planes != 0) 1398 && (info->vi_planes != bios_vmode[i].vi_planes)) 1399 continue; 1400 /* XXX: should check pixel format, memory model */ 1401 if ((info->vi_flags != 0) 1402 && (info->vi_flags != bios_vmode[i].vi_flags)) 1403 continue; 1404 1405 /* verify if this mode is supported on this adapter */ 1406 if (vga_get_info(adp, bios_vmode[i].vi_mode, info)) 1407 continue; 1408 return 0; 1409 } 1410 return ENODEV; 1411 } 1412 1413 /* 1414 * set_mode(): 1415 * Change the video mode. 1416 * 1417 * EGA/VGA 1418 */ 1419 1420 #ifndef VGA_NO_MODE_CHANGE 1421 #ifdef VGA_WIDTH90 1422 static void 1423 set_width90(adp_state_t *params) 1424 { 1425 /* 1426 * Based on code submitted by Kelly Yancey (kbyanc@freedomnet.com) 1427 * and alexv@sui.gda.itesm.mx. 1428 */ 1429 params->regs[5] |= 1; /* toggle 8 pixel wide fonts */ 1430 params->regs[10+0x0] = 0x6b; 1431 params->regs[10+0x1] = 0x59; 1432 params->regs[10+0x2] = 0x5a; 1433 params->regs[10+0x3] = 0x8e; 1434 params->regs[10+0x4] = 0x5e; 1435 params->regs[10+0x5] = 0x8a; 1436 params->regs[10+0x13] = 45; 1437 params->regs[35+0x13] = 0; 1438 } 1439 #endif /* VGA_WIDTH90 */ 1440 #endif /* !VGA_NO_MODE_CHANGE */ 1441 1442 static int 1443 vga_set_mode(video_adapter_t *adp, int mode) 1444 { 1445 #ifndef VGA_NO_MODE_CHANGE 1446 video_info_t info; 1447 adp_state_t params; 1448 1449 prologue(adp, V_ADP_MODECHANGE, ENODEV); 1450 1451 if (vga_get_info(adp, mode, &info)) 1452 return EINVAL; 1453 1454 #if VGA_DEBUG > 1 1455 kprintf("vga_set_mode(): setting mode %d\n", mode); 1456 #endif 1457 1458 params.sig = V_STATE_SIG; 1459 bcopy(get_mode_param(mode), params.regs, sizeof(params.regs)); 1460 1461 switch (mode) { 1462 #ifdef VGA_WIDTH90 1463 case M_VGA_C90x60: case M_VGA_M90x60: 1464 set_width90(¶ms); 1465 /* FALLTHROUGH */ 1466 #endif 1467 case M_VGA_C80x60: case M_VGA_M80x60: 1468 params.regs[2] = 0x08; 1469 params.regs[19] = 0x47; 1470 goto special_480l; 1471 1472 #ifdef VGA_WIDTH90 1473 case M_VGA_C90x30: case M_VGA_M90x30: 1474 set_width90(¶ms); 1475 /* FALLTHROUGH */ 1476 #endif 1477 case M_VGA_C80x30: case M_VGA_M80x30: 1478 params.regs[19] = 0x4f; 1479 special_480l: 1480 params.regs[9] |= 0xc0; 1481 params.regs[16] = 0x08; 1482 params.regs[17] = 0x3e; 1483 params.regs[26] = 0xea; 1484 params.regs[28] = 0xdf; 1485 params.regs[31] = 0xe7; 1486 params.regs[32] = 0x04; 1487 goto setup_mode; 1488 1489 #ifdef VGA_WIDTH90 1490 case M_VGA_C90x43: case M_VGA_M90x43: 1491 set_width90(¶ms); 1492 /* FALLTHROUGH */ 1493 #endif 1494 case M_ENH_C80x43: case M_ENH_B80x43: 1495 params.regs[28] = 87; 1496 goto special_80x50; 1497 1498 #ifdef VGA_WIDTH90 1499 case M_VGA_C90x50: case M_VGA_M90x50: 1500 set_width90(¶ms); 1501 /* FALLTHROUGH */ 1502 #endif 1503 case M_VGA_C80x50: case M_VGA_M80x50: 1504 special_80x50: 1505 params.regs[2] = 8; 1506 params.regs[19] = 7; 1507 goto setup_mode; 1508 1509 #ifdef VGA_WIDTH90 1510 case M_VGA_C90x25: case M_VGA_M90x25: 1511 set_width90(¶ms); 1512 /* FALLTHROUGH */ 1513 #endif 1514 case M_VGA_C40x25: case M_VGA_C80x25: 1515 case M_VGA_M80x25: 1516 case M_B40x25: case M_C40x25: 1517 case M_B80x25: case M_C80x25: 1518 case M_ENH_B40x25: case M_ENH_C40x25: 1519 case M_ENH_B80x25: case M_ENH_C80x25: 1520 case M_EGAMONO80x25: 1521 1522 setup_mode: 1523 vga_load_state(adp, ¶ms); 1524 break; 1525 1526 case M_VGA_MODEX: 1527 /* "unchain" the VGA mode */ 1528 params.regs[5-1+0x04] &= 0xf7; 1529 params.regs[5-1+0x04] |= 0x04; 1530 /* turn off doubleword mode */ 1531 params.regs[10+0x14] &= 0xbf; 1532 /* turn off word addressing */ 1533 params.regs[10+0x17] |= 0x40; 1534 /* set logical screen width */ 1535 params.regs[10+0x13] = 80; 1536 /* set 240 lines */ 1537 params.regs[10+0x11] = 0x2c; 1538 params.regs[10+0x06] = 0x0d; 1539 params.regs[10+0x07] = 0x3e; 1540 params.regs[10+0x10] = 0xea; 1541 params.regs[10+0x11] = 0xac; 1542 params.regs[10+0x12] = 0xdf; 1543 params.regs[10+0x15] = 0xe7; 1544 params.regs[10+0x16] = 0x06; 1545 /* set vertical sync polarity to reflect aspect ratio */ 1546 params.regs[9] = 0xe3; 1547 goto setup_grmode; 1548 1549 case M_BG320: case M_CG320: case M_BG640: 1550 case M_CG320_D: case M_CG640_E: 1551 case M_CG640x350: case M_ENH_CG640: 1552 case M_BG640x480: case M_CG640x480: case M_VGA_CG320: 1553 1554 setup_grmode: 1555 vga_load_state(adp, ¶ms); 1556 break; 1557 1558 default: 1559 return EINVAL; 1560 } 1561 1562 adp->va_mode = mode; 1563 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1564 update_adapter_info(adp, &info); 1565 1566 /* move hardware cursor out of the way */ 1567 (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1); 1568 1569 return 0; 1570 #else /* VGA_NO_MODE_CHANGE */ 1571 return ENODEV; 1572 #endif /* VGA_NO_MODE_CHANGE */ 1573 } 1574 1575 #ifndef VGA_NO_FONT_LOADING 1576 1577 static void 1578 set_font_mode(video_adapter_t *adp, u_char *buf) 1579 { 1580 u_char *mp; 1581 1582 crit_enter(); 1583 1584 /* save register values */ 1585 if (adp->va_type == KD_VGA) { 1586 outb(TSIDX, 0x02); buf[0] = inb(TSREG); 1587 outb(TSIDX, 0x04); buf[1] = inb(TSREG); 1588 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG); 1589 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG); 1590 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG); 1591 inb(adp->va_crtc_addr + 6); 1592 outb(ATC, 0x10); buf[5] = inb(ATC + 1); 1593 } else /* if (adp->va_type == KD_EGA) */ { 1594 /* 1595 * EGA cannot be read; copy parameters from the mode parameter 1596 * table. 1597 */ 1598 mp = get_mode_param(adp->va_mode); 1599 buf[0] = mp[5 + 0x02 - 1]; 1600 buf[1] = mp[5 + 0x04 - 1]; 1601 buf[2] = mp[55 + 0x04]; 1602 buf[3] = mp[55 + 0x05]; 1603 buf[4] = mp[55 + 0x06]; 1604 buf[5] = mp[35 + 0x10]; 1605 } 1606 1607 /* setup vga for loading fonts */ 1608 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1609 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01); 1610 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1611 outb(ATC, 0x20); /* enable palette */ 1612 1613 #if VGA_SLOW_IOACCESS 1614 #ifdef VGA_ALT_SEQACCESS 1615 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1616 #endif 1617 outb(TSIDX, 0x02); outb(TSREG, 0x04); 1618 outb(TSIDX, 0x04); outb(TSREG, 0x07); 1619 #ifdef VGA_ALT_SEQACCESS 1620 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1621 #endif 1622 outb(GDCIDX, 0x04); outb(GDCREG, 0x02); 1623 outb(GDCIDX, 0x05); outb(GDCREG, 0x00); 1624 outb(GDCIDX, 0x06); outb(GDCREG, 0x04); 1625 #else /* VGA_SLOW_IOACCESS */ 1626 #ifdef VGA_ALT_SEQACCESS 1627 outw(TSIDX, 0x0100); 1628 #endif 1629 outw(TSIDX, 0x0402); 1630 outw(TSIDX, 0x0704); 1631 #ifdef VGA_ALT_SEQACCESS 1632 outw(TSIDX, 0x0300); 1633 #endif 1634 outw(GDCIDX, 0x0204); 1635 outw(GDCIDX, 0x0005); 1636 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */ 1637 #endif /* VGA_SLOW_IOACCESS */ 1638 1639 crit_exit(); 1640 } 1641 1642 static void 1643 set_normal_mode(video_adapter_t *adp, u_char *buf) 1644 { 1645 crit_enter(); 1646 1647 /* setup vga for normal operation mode again */ 1648 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1649 outb(ATC, 0x10); outb(ATC, buf[5]); 1650 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1651 outb(ATC, 0x20); /* enable palette */ 1652 1653 #if VGA_SLOW_IOACCESS 1654 #ifdef VGA_ALT_SEQACCESS 1655 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1656 #endif 1657 outb(TSIDX, 0x02); outb(TSREG, buf[0]); 1658 outb(TSIDX, 0x04); outb(TSREG, buf[1]); 1659 #ifdef VGA_ALT_SEQACCESS 1660 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1661 #endif 1662 outb(GDCIDX, 0x04); outb(GDCREG, buf[2]); 1663 outb(GDCIDX, 0x05); outb(GDCREG, buf[3]); 1664 if (adp->va_crtc_addr == MONO_CRTC) { 1665 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x08); 1666 } else { 1667 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x0c); 1668 } 1669 #else /* VGA_SLOW_IOACCESS */ 1670 #ifdef VGA_ALT_SEQACCESS 1671 outw(TSIDX, 0x0100); 1672 #endif 1673 outw(TSIDX, 0x0002 | (buf[0] << 8)); 1674 outw(TSIDX, 0x0004 | (buf[1] << 8)); 1675 #ifdef VGA_ALT_SEQACCESS 1676 outw(TSIDX, 0x0300); 1677 #endif 1678 outw(GDCIDX, 0x0004 | (buf[2] << 8)); 1679 outw(GDCIDX, 0x0005 | (buf[3] << 8)); 1680 if (adp->va_crtc_addr == MONO_CRTC) 1681 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x08)<<8)); 1682 else 1683 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8)); 1684 #endif /* VGA_SLOW_IOACCESS */ 1685 1686 crit_exit(); 1687 } 1688 1689 #endif /* VGA_NO_FONT_LOADING */ 1690 1691 /* 1692 * save_font(): 1693 * Read the font data in the requested font page from the video adapter. 1694 * 1695 * EGA/VGA 1696 */ 1697 static int 1698 vga_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1699 int ch, int count) 1700 { 1701 #ifndef VGA_NO_FONT_LOADING 1702 u_char buf[PARAM_BUFSIZE]; 1703 u_int32_t segment; 1704 int c; 1705 #ifdef VGA_ALT_SEQACCESS 1706 u_char val = 0; 1707 #endif 1708 1709 prologue(adp, V_ADP_FONT, ENODEV); 1710 1711 if (fontsize < 14) { 1712 /* FONT_8 */ 1713 fontsize = 8; 1714 } else if (fontsize >= 32) { 1715 fontsize = 32; 1716 } else if (fontsize >= 16) { 1717 /* FONT_16 */ 1718 fontsize = 16; 1719 } else { 1720 /* FONT_14 */ 1721 fontsize = 14; 1722 } 1723 1724 if (page < 0 || page >= 8) 1725 return EINVAL; 1726 segment = FONT_BUF + 0x4000*page; 1727 if (page > 3) 1728 segment -= 0xe000; 1729 1730 #ifdef VGA_ALT_SEQACCESS 1731 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1732 crit_enter(); 1733 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1734 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1735 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1736 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1737 crit_exit(); 1738 } 1739 #endif 1740 1741 set_font_mode(adp, buf); 1742 if (fontsize == 32) { 1743 bcopy_fromio(segment + ch*32, data, fontsize*count); 1744 } else { 1745 for (c = ch; count > 0; ++c, --count) { 1746 bcopy_fromio(segment + c*32, data, fontsize); 1747 data += fontsize; 1748 } 1749 } 1750 set_normal_mode(adp, buf); 1751 1752 #ifdef VGA_ALT_SEQACCESS 1753 if (adp->va_type == KD_VGA) { 1754 crit_enter(); 1755 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1756 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1757 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1758 crit_exit(); 1759 } 1760 #endif 1761 1762 return 0; 1763 #else /* VGA_NO_FONT_LOADING */ 1764 return ENODEV; 1765 #endif /* VGA_NO_FONT_LOADING */ 1766 } 1767 1768 /* 1769 * load_font(): 1770 * Set the font data in the requested font page. 1771 * NOTE: it appears that some recent video adapters do not support 1772 * the font page other than 0... XXX 1773 * 1774 * EGA/VGA 1775 */ 1776 static int 1777 vga_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1778 int ch, int count) 1779 { 1780 #ifndef VGA_NO_FONT_LOADING 1781 u_char buf[PARAM_BUFSIZE]; 1782 u_int32_t segment; 1783 int c; 1784 #ifdef VGA_ALT_SEQACCESS 1785 u_char val = 0; 1786 #endif 1787 1788 prologue(adp, V_ADP_FONT, ENODEV); 1789 1790 if (fontsize < 14) { 1791 /* FONT_8 */ 1792 fontsize = 8; 1793 } else if (fontsize >= 32) { 1794 fontsize = 32; 1795 } else if (fontsize >= 16) { 1796 /* FONT_16 */ 1797 fontsize = 16; 1798 } else { 1799 /* FONT_14 */ 1800 fontsize = 14; 1801 } 1802 1803 if (page < 0 || page >= 8) 1804 return EINVAL; 1805 segment = FONT_BUF + 0x4000*page; 1806 if (page > 3) 1807 segment -= 0xe000; 1808 1809 #ifdef VGA_ALT_SEQACCESS 1810 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1811 crit_enter(); 1812 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1813 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1814 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1815 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1816 crit_exit(); 1817 } 1818 #endif 1819 1820 set_font_mode(adp, buf); 1821 if (fontsize == 32) { 1822 bcopy_toio(data, segment + ch*32, fontsize*count); 1823 } else { 1824 for (c = ch; count > 0; ++c, --count) { 1825 bcopy_toio(data, segment + c*32, fontsize); 1826 data += fontsize; 1827 } 1828 } 1829 set_normal_mode(adp, buf); 1830 1831 #ifdef VGA_ALT_SEQACCESS 1832 if (adp->va_type == KD_VGA) { 1833 crit_enter(); 1834 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1835 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1836 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1837 crit_exit(); 1838 } 1839 #endif 1840 1841 return 0; 1842 #else /* VGA_NO_FONT_LOADING */ 1843 return ENODEV; 1844 #endif /* VGA_NO_FONT_LOADING */ 1845 } 1846 1847 /* 1848 * show_font(): 1849 * Activate the requested font page. 1850 * NOTE: it appears that some recent video adapters do not support 1851 * the font page other than 0... XXX 1852 * 1853 * EGA/VGA 1854 */ 1855 static int 1856 vga_show_font(video_adapter_t *adp, int page) 1857 { 1858 #ifndef VGA_NO_FONT_LOADING 1859 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f }; 1860 1861 prologue(adp, V_ADP_FONT, ENODEV); 1862 if (page < 0 || page >= 8) 1863 return EINVAL; 1864 1865 crit_enter(); 1866 outb(TSIDX, 0x03); outb(TSREG, cg[page]); 1867 crit_exit(); 1868 1869 return 0; 1870 #else /* VGA_NO_FONT_LOADING */ 1871 return ENODEV; 1872 #endif /* VGA_NO_FONT_LOADING */ 1873 } 1874 1875 /* 1876 * save_palette(): 1877 * Read DAC values. The values have expressed in 8 bits. 1878 * 1879 * VGA 1880 */ 1881 static int 1882 vga_save_palette(video_adapter_t *adp, u_char *palette) 1883 { 1884 int i; 1885 1886 prologue(adp, V_ADP_PALETTE, ENODEV); 1887 1888 /* 1889 * We store 8 bit values in the palette buffer, while the standard 1890 * VGA has 6 bit DAC . 1891 */ 1892 outb(PALRADR, 0x00); 1893 for (i = 0; i < 256*3; ++i) 1894 palette[i] = inb(PALDATA) << 2; 1895 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1896 return 0; 1897 } 1898 1899 static int 1900 vga_save_palette2(video_adapter_t *adp, int base, int count, 1901 u_char *r, u_char *g, u_char *b) 1902 { 1903 int i; 1904 1905 prologue(adp, V_ADP_PALETTE, ENODEV); 1906 1907 outb(PALRADR, base); 1908 for (i = 0; i < count; ++i) { 1909 r[i] = inb(PALDATA) << 2; 1910 g[i] = inb(PALDATA) << 2; 1911 b[i] = inb(PALDATA) << 2; 1912 } 1913 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1914 return 0; 1915 } 1916 1917 /* 1918 * load_palette(): 1919 * Set DAC values. 1920 * 1921 * VGA 1922 */ 1923 static int 1924 vga_load_palette(video_adapter_t *adp, const u_char *palette) 1925 { 1926 int i; 1927 1928 prologue(adp, V_ADP_PALETTE, ENODEV); 1929 1930 outb(PIXMASK, 0xff); /* no pixelmask */ 1931 outb(PALWADR, 0x00); 1932 for (i = 0; i < 256*3; ++i) 1933 outb(PALDATA, palette[i] >> 2); 1934 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1935 outb(ATC, 0x20); /* enable palette */ 1936 return 0; 1937 } 1938 1939 static int 1940 vga_load_palette2(video_adapter_t *adp, int base, int count, 1941 u_char *r, u_char *g, u_char *b) 1942 { 1943 int i; 1944 1945 prologue(adp, V_ADP_PALETTE, ENODEV); 1946 1947 outb(PIXMASK, 0xff); /* no pixelmask */ 1948 outb(PALWADR, base); 1949 for (i = 0; i < count; ++i) { 1950 outb(PALDATA, r[i] >> 2); 1951 outb(PALDATA, g[i] >> 2); 1952 outb(PALDATA, b[i] >> 2); 1953 } 1954 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1955 outb(ATC, 0x20); /* enable palette */ 1956 return 0; 1957 } 1958 1959 /* 1960 * set_border(): 1961 * Change the border color. 1962 * 1963 * CGA/EGA/VGA 1964 */ 1965 static int 1966 vga_set_border(video_adapter_t *adp, int color) 1967 { 1968 prologue(adp, V_ADP_BORDER, ENODEV); 1969 1970 switch (adp->va_type) { 1971 case KD_EGA: 1972 case KD_VGA: 1973 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1974 outb(ATC, 0x31); outb(ATC, color & 0xff); 1975 break; 1976 case KD_CGA: 1977 outb(adp->va_crtc_addr + 5, color & 0x0f); /* color select register */ 1978 break; 1979 case KD_MONO: 1980 case KD_HERCULES: 1981 default: 1982 break; 1983 } 1984 return 0; 1985 } 1986 1987 /* 1988 * save_state(): 1989 * Read video register values. 1990 * NOTE: this function only reads the standard EGA/VGA registers. 1991 * any extra/extended registers of SVGA adapters are not saved. 1992 * 1993 * VGA 1994 */ 1995 static int 1996 vga_save_state(video_adapter_t *adp, void *p, size_t size) 1997 { 1998 video_info_t info; 1999 u_char *buf; 2000 int crtc_addr; 2001 int i, j; 2002 2003 if (size == 0) { 2004 /* return the required buffer size */ 2005 prologue(adp, V_ADP_STATESAVE, 0); 2006 return sizeof(adp_state_t); 2007 } else { 2008 prologue(adp, V_ADP_STATESAVE, ENODEV); 2009 if (size < sizeof(adp_state_t)) 2010 return EINVAL; 2011 } 2012 2013 ((adp_state_t *)p)->sig = V_STATE_SIG; 2014 buf = ((adp_state_t *)p)->regs; 2015 bzero(buf, V_MODE_PARAM_SIZE); 2016 crtc_addr = adp->va_crtc_addr; 2017 2018 crit_enter(); 2019 2020 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2021 for (i = 0, j = 5; i < 4; i++) { 2022 outb(TSIDX, i + 1); 2023 buf[j++] = inb(TSREG); 2024 } 2025 buf[9] = inb(MISC + 10); /* dot-clock */ 2026 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2027 2028 for (i = 0, j = 10; i < 25; i++) { /* crtc */ 2029 outb(crtc_addr, i); 2030 buf[j++] = inb(crtc_addr + 1); 2031 } 2032 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */ 2033 inb(crtc_addr + 6); /* reset flip-flop */ 2034 outb(ATC, i); 2035 buf[j++] = inb(ATC + 1); 2036 } 2037 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */ 2038 outb(GDCIDX, i); 2039 buf[j++] = inb(GDCREG); 2040 } 2041 inb(crtc_addr + 6); /* reset flip-flop */ 2042 outb(ATC, 0x20); /* enable palette */ 2043 2044 crit_exit(); 2045 2046 #if 1 2047 if (vga_get_info(adp, adp->va_mode, &info) == 0) { 2048 if (info.vi_flags & V_INFO_GRAPHICS) { 2049 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */ 2050 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */ 2051 } else { 2052 buf[0] = info.vi_width; /* COLS */ 2053 buf[1] = info.vi_height - 1; /* ROWS */ 2054 } 2055 buf[2] = info.vi_cheight; /* POINTS */ 2056 } else { 2057 /* XXX: shouldn't be happening... */ 2058 kprintf("vga%d: %s: failed to obtain mode info. (vga_save_state())\n", 2059 adp->va_unit, adp->va_name); 2060 } 2061 #else 2062 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */ 2063 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */ 2064 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */ 2065 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c)); 2066 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d)); 2067 #endif 2068 2069 return 0; 2070 } 2071 2072 /* 2073 * load_state(): 2074 * Set video registers at once. 2075 * NOTE: this function only updates the standard EGA/VGA registers. 2076 * any extra/extended registers of SVGA adapters are not changed. 2077 * 2078 * EGA/VGA 2079 */ 2080 static int 2081 vga_load_state(video_adapter_t *adp, void *p) 2082 { 2083 u_char *buf; 2084 int crtc_addr; 2085 int i; 2086 2087 prologue(adp, V_ADP_STATELOAD, ENODEV); 2088 if (((adp_state_t *)p)->sig != V_STATE_SIG) 2089 return EINVAL; 2090 2091 buf = ((adp_state_t *)p)->regs; 2092 crtc_addr = adp->va_crtc_addr; 2093 2094 #if VGA_DEBUG > 1 2095 dump_buffer(buf, V_MODE_PARAM_SIZE); 2096 #endif 2097 2098 crit_enter(); 2099 2100 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2101 for (i = 0; i < 4; ++i) { /* program sequencer */ 2102 outb(TSIDX, i + 1); 2103 outb(TSREG, buf[i + 5]); 2104 } 2105 outb(MISC, buf[9]); /* set dot-clock */ 2106 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2107 outb(crtc_addr, 0x11); 2108 outb(crtc_addr + 1, inb(crtc_addr + 1) & 0x7F); 2109 for (i = 0; i < 25; ++i) { /* program crtc */ 2110 outb(crtc_addr, i); 2111 outb(crtc_addr + 1, buf[i + 10]); 2112 } 2113 inb(crtc_addr+6); /* reset flip-flop */ 2114 for (i = 0; i < 20; ++i) { /* program attribute ctrl */ 2115 outb(ATC, i); 2116 outb(ATC, buf[i + 35]); 2117 } 2118 for (i = 0; i < 9; ++i) { /* program graph data ctrl */ 2119 outb(GDCIDX, i); 2120 outb(GDCREG, buf[i + 55]); 2121 } 2122 inb(crtc_addr + 6); /* reset flip-flop */ 2123 outb(ATC, 0x20); /* enable palette */ 2124 2125 #if notyet /* a temporary workaround for kernel panic, XXX */ 2126 #ifndef VGA_NO_BIOS 2127 if (adp->va_unit == V_ADP_PRIMARY) { 2128 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */ 2129 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */ 2130 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */ 2131 #if 0 2132 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]); 2133 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]); 2134 #endif 2135 } 2136 #endif /* VGA_NO_BIOS */ 2137 #endif /* notyet */ 2138 2139 crit_exit(); 2140 return 0; 2141 } 2142 2143 /* 2144 * set_origin(): 2145 * Change the origin (window mapping) of the banked frame buffer. 2146 */ 2147 static int 2148 vga_set_origin(video_adapter_t *adp, off_t offset) 2149 { 2150 /* 2151 * The standard video modes do not require window mapping; 2152 * always return error. 2153 */ 2154 return ENODEV; 2155 } 2156 2157 /* 2158 * read_hw_cursor(): 2159 * Read the position of the hardware text cursor. 2160 * 2161 * all adapters 2162 */ 2163 static int 2164 vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 2165 { 2166 u_int16_t off; 2167 2168 if (!vga_init_done) 2169 return ENXIO; 2170 2171 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2172 return ENODEV; 2173 2174 crit_enter(); 2175 outb(adp->va_crtc_addr, 14); 2176 off = inb(adp->va_crtc_addr + 1); 2177 outb(adp->va_crtc_addr, 15); 2178 off = (off << 8) | inb(adp->va_crtc_addr + 1); 2179 crit_exit(); 2180 2181 *row = off / adp->va_info.vi_width; 2182 *col = off % adp->va_info.vi_width; 2183 2184 return 0; 2185 } 2186 2187 /* 2188 * set_hw_cursor(): 2189 * Move the hardware text cursor. If col and row are both -1, 2190 * the cursor won't be shown. 2191 * 2192 * all adapters 2193 */ 2194 static int 2195 vga_set_hw_cursor(video_adapter_t *adp, int col, int row) 2196 { 2197 u_int16_t off; 2198 2199 if (!vga_init_done) 2200 return ENXIO; 2201 2202 if ((col == -1) && (row == -1)) { 2203 off = -1; 2204 } else { 2205 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2206 return ENODEV; 2207 off = row*adp->va_info.vi_width + col; 2208 } 2209 2210 crit_enter(); 2211 outb(adp->va_crtc_addr, 14); 2212 outb(adp->va_crtc_addr + 1, off >> 8); 2213 outb(adp->va_crtc_addr, 15); 2214 outb(adp->va_crtc_addr + 1, off & 0x00ff); 2215 crit_exit(); 2216 2217 return 0; 2218 } 2219 2220 /* 2221 * set_hw_cursor_shape(): 2222 * Change the shape of the hardware text cursor. If the height is 2223 * zero or negative, the cursor won't be shown. 2224 * 2225 * all adapters 2226 */ 2227 static int 2228 vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 2229 int celsize, int blink) 2230 { 2231 if (!vga_init_done) 2232 return ENXIO; 2233 2234 crit_enter(); 2235 switch (adp->va_type) { 2236 case KD_VGA: 2237 case KD_CGA: 2238 case KD_MONO: 2239 case KD_HERCULES: 2240 default: 2241 if (height <= 0) { 2242 /* make the cursor invisible */ 2243 outb(adp->va_crtc_addr, 10); 2244 outb(adp->va_crtc_addr + 1, 32); 2245 outb(adp->va_crtc_addr, 11); 2246 outb(adp->va_crtc_addr + 1, 0); 2247 } else { 2248 outb(adp->va_crtc_addr, 10); 2249 outb(adp->va_crtc_addr + 1, celsize - base - height); 2250 outb(adp->va_crtc_addr, 11); 2251 outb(adp->va_crtc_addr + 1, celsize - base - 1); 2252 } 2253 break; 2254 case KD_EGA: 2255 if (height <= 0) { 2256 /* make the cursor invisible */ 2257 outb(adp->va_crtc_addr, 10); 2258 outb(adp->va_crtc_addr + 1, celsize); 2259 outb(adp->va_crtc_addr, 11); 2260 outb(adp->va_crtc_addr + 1, 0); 2261 } else { 2262 outb(adp->va_crtc_addr, 10); 2263 outb(adp->va_crtc_addr + 1, celsize - base - height); 2264 outb(adp->va_crtc_addr, 11); 2265 outb(adp->va_crtc_addr + 1, celsize - base); 2266 } 2267 break; 2268 } 2269 crit_exit(); 2270 2271 return 0; 2272 } 2273 2274 /* 2275 * blank_display() 2276 * Put the display in power save/power off mode. 2277 * 2278 * all adapters 2279 */ 2280 static int 2281 vga_blank_display(video_adapter_t *adp, int mode) 2282 { 2283 u_char val; 2284 2285 crit_enter(); 2286 switch (adp->va_type) { 2287 case KD_VGA: 2288 switch (mode) { 2289 case V_DISPLAY_SUSPEND: 2290 case V_DISPLAY_STAND_BY: 2291 outb(TSIDX, 0x01); 2292 val = inb(TSREG); 2293 outb(TSIDX, 0x01); 2294 outb(TSREG, val | 0x20); 2295 outb(adp->va_crtc_addr, 0x17); 2296 val = inb(adp->va_crtc_addr + 1); 2297 outb(adp->va_crtc_addr + 1, val & ~0x80); 2298 break; 2299 case V_DISPLAY_OFF: 2300 outb(TSIDX, 0x01); 2301 val = inb(TSREG); 2302 outb(TSIDX, 0x01); 2303 outb(TSREG, val | 0x20); 2304 break; 2305 case V_DISPLAY_ON: 2306 outb(TSIDX, 0x01); 2307 val = inb(TSREG); 2308 outb(TSIDX, 0x01); 2309 outb(TSREG, val & 0xDF); 2310 outb(adp->va_crtc_addr, 0x17); 2311 val = inb(adp->va_crtc_addr + 1); 2312 outb(adp->va_crtc_addr + 1, val | 0x80); 2313 break; 2314 } 2315 break; 2316 2317 case KD_EGA: 2318 /* no support yet */ 2319 crit_exit(); 2320 return ENODEV; 2321 2322 case KD_CGA: 2323 switch (mode) { 2324 case V_DISPLAY_SUSPEND: 2325 case V_DISPLAY_STAND_BY: 2326 case V_DISPLAY_OFF: 2327 outb(adp->va_crtc_addr + 4, 0x25); 2328 break; 2329 case V_DISPLAY_ON: 2330 outb(adp->va_crtc_addr + 4, 0x2d); 2331 break; 2332 } 2333 break; 2334 2335 case KD_MONO: 2336 case KD_HERCULES: 2337 switch (mode) { 2338 case V_DISPLAY_SUSPEND: 2339 case V_DISPLAY_STAND_BY: 2340 case V_DISPLAY_OFF: 2341 outb(adp->va_crtc_addr + 4, 0x21); 2342 break; 2343 case V_DISPLAY_ON: 2344 outb(adp->va_crtc_addr + 4, 0x29); 2345 break; 2346 } 2347 break; 2348 default: 2349 break; 2350 } 2351 crit_exit(); 2352 2353 return 0; 2354 } 2355 2356 /* 2357 * mmap(): 2358 * Mmap frame buffer. 2359 * 2360 * all adapters 2361 */ 2362 static int 2363 vga_mmap_buf(video_adapter_t *adp, vm_offset_t offset, int prot) 2364 { 2365 if (adp->va_info.vi_flags & V_INFO_LINEAR) 2366 return -1; 2367 2368 #if VGA_DEBUG > 0 2369 kprintf("vga_mmap_buf(): window:0x%x, offset:0x%x\n", 2370 adp->va_info.vi_window, offset); 2371 #endif 2372 2373 /* XXX: is this correct? */ 2374 if (offset > adp->va_window_size - PAGE_SIZE) 2375 return -1; 2376 2377 #ifdef __i386__ 2378 return i386_btop(adp->va_info.vi_window + offset); 2379 #endif 2380 } 2381 2382 #ifndef VGA_NO_MODE_CHANGE 2383 2384 static void 2385 planar_fill(video_adapter_t *adp, int val) 2386 { 2387 int length; 2388 int at; /* position in the frame buffer */ 2389 int l; 2390 2391 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2392 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2393 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2394 outw(GDCIDX, 0xff08); /* bit mask */ 2395 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2396 at = 0; 2397 length = adp->va_line_width*adp->va_info.vi_height; 2398 while (length > 0) { 2399 l = imin(length, adp->va_window_size); 2400 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2401 bzero_io(adp->va_window, l); 2402 length -= l; 2403 at += l; 2404 } 2405 outw(GDCIDX, 0x0000); /* set/reset */ 2406 outw(GDCIDX, 0x0001); /* set/reset enable */ 2407 } 2408 2409 static void 2410 packed_fill(video_adapter_t *adp, int val) 2411 { 2412 int length; 2413 int at; /* position in the frame buffer */ 2414 int l; 2415 2416 at = 0; 2417 length = adp->va_line_width*adp->va_info.vi_height; 2418 while (length > 0) { 2419 l = imin(length, adp->va_window_size); 2420 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2421 fill_io(val, adp->va_window, l); 2422 length -= l; 2423 at += l; 2424 } 2425 } 2426 2427 static void 2428 direct_fill(video_adapter_t *adp, int val) 2429 { 2430 int length; 2431 int at; /* position in the frame buffer */ 2432 int l; 2433 2434 at = 0; 2435 length = adp->va_line_width*adp->va_info.vi_height; 2436 while (length > 0) { 2437 l = imin(length, adp->va_window_size); 2438 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2439 switch (adp->va_info.vi_pixel_size) { 2440 case sizeof(u_int16_t): 2441 fillw_io(val, adp->va_window, l/sizeof(u_int16_t)); 2442 break; 2443 case 3: 2444 /* FIXME */ 2445 break; 2446 case sizeof(u_int32_t): 2447 filll_io(val, adp->va_window, l/sizeof(u_int32_t)); 2448 break; 2449 } 2450 length -= l; 2451 at += l; 2452 } 2453 } 2454 2455 static int 2456 vga_clear(video_adapter_t *adp) 2457 { 2458 switch (adp->va_info.vi_mem_model) { 2459 case V_INFO_MM_TEXT: 2460 /* do nothing? XXX */ 2461 break; 2462 case V_INFO_MM_PLANAR: 2463 planar_fill(adp, 0); 2464 break; 2465 case V_INFO_MM_PACKED: 2466 packed_fill(adp, 0); 2467 break; 2468 case V_INFO_MM_DIRECT: 2469 direct_fill(adp, 0); 2470 break; 2471 } 2472 return 0; 2473 } 2474 2475 #ifdef notyet 2476 static void 2477 planar_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2478 { 2479 int banksize; 2480 int bank; 2481 int pos; 2482 int offset; /* offset within window */ 2483 int bx; 2484 int l; 2485 2486 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2487 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2488 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2489 outw(GDCIDX, 0xff08); /* bit mask */ 2490 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2491 2492 banksize = adp->va_window_size; 2493 bank = -1; 2494 while (cy > 0) { 2495 pos = adp->va_line_width*y + x/8; 2496 if (bank != pos/banksize) { 2497 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2498 bank = pos/banksize; 2499 } 2500 offset = pos%banksize; 2501 bx = (x + cx)/8 - x/8; 2502 if (x % 8) { 2503 outw(GDCIDX, ((0xff00 >> (x % 8)) & 0xff00) | 0x08); 2504 writeb(adp->va_window + offset, 0); 2505 ++offset; 2506 --bx; 2507 if (offset >= banksize) { 2508 offset = 0; 2509 ++bank; /* next bank */ 2510 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2511 } 2512 outw(GDCIDX, 0xff08); /* bit mask */ 2513 } 2514 while (bx > 0) { 2515 l = imin(bx, banksize); 2516 bzero_io(adp->va_window + offset, l); 2517 offset += l; 2518 bx -= l; 2519 if (offset >= banksize) { 2520 offset = 0; 2521 ++bank; /* next bank */ 2522 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2523 } 2524 } 2525 if ((x + cx) % 8) { 2526 outw(GDCIDX, (~(0xff00 >> ((x + cx) % 8)) & 0xff00) | 0x08); 2527 writeb(adp->va_window + offset, 0); 2528 ++offset; 2529 if (offset >= banksize) { 2530 offset = 0; 2531 ++bank; /* next bank */ 2532 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2533 } 2534 outw(GDCIDX, 0xff08); /* bit mask */ 2535 } 2536 ++y; 2537 --cy; 2538 } 2539 2540 outw(GDCIDX, 0xff08); /* bit mask */ 2541 outw(GDCIDX, 0x0000); /* set/reset */ 2542 outw(GDCIDX, 0x0001); /* set/reset enable */ 2543 } 2544 2545 static void 2546 packed_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2547 { 2548 int banksize; 2549 int bank; 2550 int pos; 2551 int offset; /* offset within window */ 2552 int end; 2553 2554 banksize = adp->va_window_size; 2555 bank = -1; 2556 cx *= adp->va_info.vi_pixel_size; 2557 while (cy > 0) { 2558 pos = adp->va_line_width*y + x*adp->va_info.vi_pixel_size; 2559 if (bank != pos/banksize) { 2560 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2561 bank = pos/banksize; 2562 } 2563 offset = pos%banksize; 2564 end = imin(offset + cx, banksize); 2565 fill_io(val, adp->va_window + offset, 2566 (end - offset)/adp->va_info.vi_pixel_size); 2567 /* the line may cross the window boundary */ 2568 if (offset + cx > banksize) { 2569 ++bank; /* next bank */ 2570 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2571 end = offset + cx - banksize; 2572 fill_io(val, adp->va_window, end/adp->va_info.vi_pixel_size); 2573 } 2574 ++y; 2575 --cy; 2576 } 2577 } 2578 2579 static void 2580 direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2581 { 2582 int banksize; 2583 int bank; 2584 int pos; 2585 int offset; /* offset within window */ 2586 int end; 2587 2588 /* 2589 * XXX: the function assumes that banksize is a muliple of 2590 * sizeof(u_int16_t). 2591 */ 2592 banksize = adp->va_window_size; 2593 bank = -1; 2594 cx *= sizeof(u_int16_t); 2595 while (cy > 0) { 2596 pos = adp->va_line_width*y + x*sizeof(u_int16_t); 2597 if (bank != pos/banksize) { 2598 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2599 bank = pos/banksize; 2600 } 2601 offset = pos%banksize; 2602 end = imin(offset + cx, banksize); 2603 fillw_io(val, adp->va_window + offset, 2604 (end - offset)/sizeof(u_int16_t)); 2605 /* the line may cross the window boundary */ 2606 if (offset + cx > banksize) { 2607 ++bank; /* next bank */ 2608 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2609 end = offset + cx - banksize; 2610 fillw_io(val, adp->va_window, end/sizeof(u_int16_t)); 2611 } 2612 ++y; 2613 --cy; 2614 } 2615 } 2616 2617 static void 2618 direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2619 { 2620 int banksize; 2621 int bank; 2622 int pos; 2623 int offset; /* offset within window */ 2624 int end; 2625 int i; 2626 int j; 2627 u_int8_t b[3]; 2628 2629 b[0] = val & 0x0000ff; 2630 b[1] = (val >> 8) & 0x0000ff; 2631 b[2] = (val >> 16) & 0x0000ff; 2632 banksize = adp->va_window_size; 2633 bank = -1; 2634 cx *= 3; 2635 while (cy > 0) { 2636 pos = adp->va_line_width*y + x*3; 2637 if (bank != pos/banksize) { 2638 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2639 bank = pos/banksize; 2640 } 2641 offset = pos%banksize; 2642 end = imin(offset + cx, banksize); 2643 for (i = 0, j = offset; j < end; i = (++i)%3, ++j) { 2644 writeb(adp->va_window + j, b[i]); 2645 } 2646 /* the line may cross the window boundary */ 2647 if (offset + cx >= banksize) { 2648 ++bank; /* next bank */ 2649 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2650 j = 0; 2651 end = offset + cx - banksize; 2652 for (; j < end; i = (++i)%3, ++j) { 2653 writeb(adp->va_window + j, b[i]); 2654 } 2655 } 2656 ++y; 2657 --cy; 2658 } 2659 } 2660 2661 static void 2662 direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2663 { 2664 int banksize; 2665 int bank; 2666 int pos; 2667 int offset; /* offset within window */ 2668 int end; 2669 2670 /* 2671 * XXX: the function assumes that banksize is a muliple of 2672 * sizeof(u_int32_t). 2673 */ 2674 banksize = adp->va_window_size; 2675 bank = -1; 2676 cx *= sizeof(u_int32_t); 2677 while (cy > 0) { 2678 pos = adp->va_line_width*y + x*sizeof(u_int32_t); 2679 if (bank != pos/banksize) { 2680 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2681 bank = pos/banksize; 2682 } 2683 offset = pos%banksize; 2684 end = imin(offset + cx, banksize); 2685 filll_io(val, adp->va_window + offset, 2686 (end - offset)/sizeof(u_int32_t)); 2687 /* the line may cross the window boundary */ 2688 if (offset + cx > banksize) { 2689 ++bank; /* next bank */ 2690 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2691 end = offset + cx - banksize; 2692 filll_io(val, adp->va_window, end/sizeof(u_int32_t)); 2693 } 2694 ++y; 2695 --cy; 2696 } 2697 } 2698 2699 static int 2700 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2701 { 2702 switch (adp->va_info.vi_mem_model) { 2703 case V_INFO_MM_TEXT: 2704 /* do nothing? XXX */ 2705 break; 2706 case V_INFO_MM_PLANAR: 2707 planar_fill_rect(adp, val, x, y, cx, cy); 2708 break; 2709 case V_INFO_MM_PACKED: 2710 packed_fill_rect(adp, val, x, y, cx, cy); 2711 break; 2712 case V_INFO_MM_DIRECT: 2713 switch (adp->va_info.vi_pixel_size) { 2714 case sizeof(u_int16_t): 2715 direct_fill_rect16(adp, val, x, y, cx, cy); 2716 break; 2717 case 3: 2718 direct_fill_rect24(adp, val, x, y, cx, cy); 2719 break; 2720 case sizeof(u_int32_t): 2721 direct_fill_rect32(adp, val, x, y, cx, cy); 2722 break; 2723 } 2724 break; 2725 } 2726 return 0; 2727 } 2728 #else /* !notyet */ 2729 static int 2730 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2731 { 2732 return ENODEV; 2733 } 2734 #endif /* notyet */ 2735 2736 static int 2737 vga_bitblt(video_adapter_t *adp,...) 2738 { 2739 /* FIXME */ 2740 return ENODEV; 2741 } 2742 2743 #endif /* !VGA_NO_MODE_CHANGE */ 2744 2745 static int 2746 get_palette(video_adapter_t *adp, int base, int count, 2747 u_char *red, u_char *green, u_char *blue, u_char *trans) 2748 { 2749 u_char *r; 2750 u_char *g; 2751 u_char *b; 2752 2753 if (count < 0 || base < 0 || count > 256 || base > 256 || 2754 base + count > 256) 2755 return EINVAL; 2756 2757 r = kmalloc(count*3, M_DEVBUF, M_WAITOK); 2758 g = r + count; 2759 b = g + count; 2760 if (vga_save_palette2(adp, base, count, r, g, b)) { 2761 kfree(r, M_DEVBUF); 2762 return ENODEV; 2763 } 2764 copyout(r, red, count); 2765 copyout(g, green, count); 2766 copyout(b, blue, count); 2767 if (trans != NULL) { 2768 bzero(r, count); 2769 copyout(r, trans, count); 2770 } 2771 kfree(r, M_DEVBUF); 2772 2773 return 0; 2774 } 2775 2776 static int 2777 set_palette(video_adapter_t *adp, int base, int count, 2778 u_char *red, u_char *green, u_char *blue, u_char *trans) 2779 { 2780 u_char *r; 2781 u_char *g; 2782 u_char *b; 2783 int err; 2784 2785 if (count < 0 || base < 0 || count > 256 || base > 256 || 2786 base + count > 256) 2787 return EINVAL; 2788 2789 r = kmalloc(count*3, M_DEVBUF, M_WAITOK); 2790 g = r + count; 2791 b = g + count; 2792 err = copyin(red, r, count); 2793 if (!err) 2794 err = copyin(green, g, count); 2795 if (!err) 2796 err = copyin(blue, b, count); 2797 if (!err) 2798 err = vga_load_palette2(adp, base, count, r, g, b); 2799 kfree(r, M_DEVBUF); 2800 2801 return (err ? ENODEV : 0); 2802 } 2803 2804 static int 2805 vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 2806 { 2807 switch (cmd) { 2808 case FBIO_GETWINORG: /* get frame buffer window origin */ 2809 *(u_int *)arg = 0; 2810 return 0; 2811 2812 case FBIO_SETWINORG: /* set frame buffer window origin */ 2813 return ENODEV; 2814 2815 case FBIO_SETDISPSTART: /* set display start address */ 2816 return (set_display_start(adp, 2817 ((video_display_start_t *)arg)->x, 2818 ((video_display_start_t *)arg)->y) 2819 ? ENODEV : 0); 2820 2821 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */ 2822 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0); 2823 2824 case FBIO_GETPALETTE: /* get color palette */ 2825 return get_palette(adp, ((video_color_palette_t *)arg)->index, 2826 ((video_color_palette_t *)arg)->count, 2827 ((video_color_palette_t *)arg)->red, 2828 ((video_color_palette_t *)arg)->green, 2829 ((video_color_palette_t *)arg)->blue, 2830 ((video_color_palette_t *)arg)->transparent); 2831 2832 case FBIO_SETPALETTE: /* set color palette */ 2833 return set_palette(adp, ((video_color_palette_t *)arg)->index, 2834 ((video_color_palette_t *)arg)->count, 2835 ((video_color_palette_t *)arg)->red, 2836 ((video_color_palette_t *)arg)->green, 2837 ((video_color_palette_t *)arg)->blue, 2838 ((video_color_palette_t *)arg)->transparent); 2839 2840 case FBIOGTYPE: /* get frame buffer type info. */ 2841 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type); 2842 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height; 2843 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width; 2844 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth; 2845 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8)) 2846 ((struct fbtype *)arg)->fb_cmsize = 0; 2847 else 2848 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth; 2849 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size; 2850 return 0; 2851 2852 case FBIOGETCMAP: /* get color palette */ 2853 return get_palette(adp, ((struct fbcmap *)arg)->index, 2854 ((struct fbcmap *)arg)->count, 2855 ((struct fbcmap *)arg)->red, 2856 ((struct fbcmap *)arg)->green, 2857 ((struct fbcmap *)arg)->blue, NULL); 2858 2859 case FBIOPUTCMAP: /* set color palette */ 2860 return set_palette(adp, ((struct fbcmap *)arg)->index, 2861 ((struct fbcmap *)arg)->count, 2862 ((struct fbcmap *)arg)->red, 2863 ((struct fbcmap *)arg)->green, 2864 ((struct fbcmap *)arg)->blue, NULL); 2865 2866 default: 2867 return fb_commonioctl(adp, cmd, arg); 2868 } 2869 } 2870 2871 static void 2872 dump_buffer(u_char *buf, size_t len) 2873 { 2874 int i; 2875 2876 for(i = 0; i < len;) { 2877 kprintf("%02x ", buf[i]); 2878 if ((++i % 16) == 0) 2879 kprintf("\n"); 2880 } 2881 } 2882 2883 /* 2884 * diag(): 2885 * Print some information about the video adapter and video modes, 2886 * with requested level of details. 2887 * 2888 * all adapters 2889 */ 2890 static int 2891 vga_diag(video_adapter_t *adp, int level) 2892 { 2893 u_char *mp; 2894 #if FB_DEBUG > 1 2895 video_info_t info; 2896 int i; 2897 #endif 2898 2899 if (!vga_init_done) 2900 return ENXIO; 2901 2902 #if FB_DEBUG > 1 2903 #ifndef VGA_NO_BIOS 2904 kprintf("vga: RTC equip. code:0x%02x, DCC code:0x%02x\n", 2905 rtcin(RTC_EQUIPMENT), readb(BIOS_PADDRTOVADDR(0x488))); 2906 kprintf("vga: CRTC:0x%x, video option:0x%02x, ", 2907 readw(BIOS_PADDRTOVADDR(0x463)), 2908 readb(BIOS_PADDRTOVADDR(0x487))); 2909 kprintf("rows:%d, cols:%d, font height:%d\n", 2910 readb(BIOS_PADDRTOVADDR(0x44a)), 2911 readb(BIOS_PADDRTOVADDR(0x484)) + 1, 2912 readb(BIOS_PADDRTOVADDR(0x485))); 2913 #endif /* VGA_NO_BIOS */ 2914 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 2915 kprintf("vga: param table EGA/VGA:%p", video_mode_ptr); 2916 kprintf(", CGA/MDA:%p\n", video_mode_ptr2); 2917 kprintf("vga: rows_offset:%d\n", rows_offset); 2918 #endif 2919 #endif /* FB_DEBUG > 1 */ 2920 2921 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level); 2922 2923 #if FB_DEBUG > 1 2924 if (adp->va_flags & V_ADP_MODECHANGE) { 2925 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 2926 if (bios_vmode[i].vi_mode == NA) 2927 continue; 2928 if (get_mode_param(bios_vmode[i].vi_mode) == NULL) 2929 continue; 2930 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level); 2931 } 2932 } else { 2933 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */ 2934 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level); 2935 } 2936 #endif /* FB_DEBUG > 1 */ 2937 2938 if ((adp->va_type != KD_EGA) && (adp->va_type != KD_VGA)) 2939 return 0; 2940 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 2941 if (video_mode_ptr == NULL) 2942 kprintf("vga%d: %s: WARNING: video mode switching is not " 2943 "fully supported on this adapter\n", 2944 adp->va_unit, adp->va_name); 2945 #endif 2946 if (level <= 0) 2947 return 0; 2948 2949 if (adp->va_type == KD_VGA) { 2950 kprintf("VGA parameters upon power-up\n"); 2951 dump_buffer(adpstate.regs, sizeof(adpstate.regs)); 2952 kprintf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode); 2953 dump_buffer(adpstate2.regs, sizeof(adpstate2.regs)); 2954 } 2955 2956 mp = get_mode_param(adp->va_initial_mode); 2957 if (mp == NULL) /* this shouldn't be happening */ 2958 return 0; 2959 kprintf("EGA/VGA parameters to be used for mode %d\n", adp->va_initial_mode); 2960 dump_buffer(mp, V_MODE_PARAM_SIZE); 2961 2962 return 0; 2963 } 2964