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 1.20 2006/12/29 00:10:35 swildner Exp $ 31 */ 32 33 #include "opt_vga.h" 34 #include "opt_fb.h" 35 #include "opt_syscons.h" /* should be removed in the future, XXX */ 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/conf.h> 41 #include <sys/fcntl.h> 42 #include <sys/malloc.h> 43 #include <sys/fbio.h> 44 #include <sys/thread2.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 #include <machine/pc/bios.h> 52 53 #include "fbreg.h" 54 #include "vgareg.h" 55 56 #include <bus/isa/isareg.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 #include <machine/clock.h> 148 #include <machine/pc/vesa.h> 149 150 #define probe_done(adp) ((adp)->va_flags & V_ADP_PROBED) 151 #define init_done(adp) ((adp)->va_flags & V_ADP_INITIALIZED) 152 #define config_done(adp) ((adp)->va_flags & V_ADP_REGISTERED) 153 154 /* for compatibility with old kernel options */ 155 #ifdef SC_ALT_SEQACCESS 156 #undef SC_ALT_SEQACCESS 157 #undef VGA_ALT_SEQACCESS 158 #define VGA_ALT_SEQACCESS 1 159 #endif 160 161 #ifdef SLOW_VGA 162 #undef SLOW_VGA 163 #undef VGA_SLOW_IOACCESS 164 #define VGA_SLOW_IOACCESS 1 165 #endif 166 167 /* this should really be in `rtc.h' */ 168 #define RTC_EQUIPMENT 0x14 169 170 /* various sizes */ 171 #define V_MODE_MAP_SIZE (M_VGA_CG320 + 1) 172 #define V_MODE_PARAM_SIZE 64 173 174 /* video adapter state buffer */ 175 struct adp_state { 176 int sig; 177 #define V_STATE_SIG 0x736f6962 178 u_char regs[V_MODE_PARAM_SIZE]; 179 }; 180 typedef struct adp_state adp_state_t; 181 182 /* video adapter information */ 183 #define DCC_MONO 0 184 #define DCC_CGA40 1 185 #define DCC_CGA80 2 186 #define DCC_EGAMONO 3 187 #define DCC_EGA40 4 188 #define DCC_EGA80 5 189 190 /* 191 * NOTE: `va_window' should have a virtual address, but is initialized 192 * with a physical address in the following table, as verify_adapter() 193 * will perform address conversion at run-time. 194 */ 195 static video_adapter_t adapter_init_value[] = { 196 /* DCC_MONO */ 197 { 0, KD_MONO, "mda", 0, 0, 0, IO_MDA, IO_MDASIZE, MONO_CRTC, 198 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 199 0, 0, 0, 0, 7, 0, }, 200 /* DCC_CGA40 */ 201 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 202 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 203 0, 0, 0, 0, 3, 0, }, 204 /* DCC_CGA80 */ 205 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 206 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 207 0, 0, 0, 0, 3, 0, }, 208 /* DCC_EGAMONO */ 209 { 0, KD_EGA, "ega", 0, 0, 0, IO_MDA, 48, MONO_CRTC, 210 EGA_BUF_BASE, EGA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 211 0, 0, 0, 0, 7, 0, }, 212 /* DCC_EGA40 */ 213 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 214 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 215 0, 0, 0, 0, 3, 0, }, 216 /* DCC_EGA80 */ 217 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 218 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 219 0, 0, 0, 0, 3, 0, }, 220 }; 221 222 static video_adapter_t biosadapter[2]; 223 static int biosadapters = 0; 224 225 /* video driver declarations */ 226 static int vga_configure(int flags); 227 int (*vga_sub_configure)(int flags); 228 #if 0 229 static int vga_nop(void); 230 #endif 231 static int vga_error(void); 232 static vi_probe_t vga_probe; 233 static vi_init_t vga_init; 234 static vi_get_info_t vga_get_info; 235 static vi_query_mode_t vga_query_mode; 236 static vi_set_mode_t vga_set_mode; 237 static vi_save_font_t vga_save_font; 238 static vi_load_font_t vga_load_font; 239 static vi_show_font_t vga_show_font; 240 static vi_save_palette_t vga_save_palette; 241 static vi_load_palette_t vga_load_palette; 242 static vi_set_border_t vga_set_border; 243 static vi_save_state_t vga_save_state; 244 static vi_load_state_t vga_load_state; 245 static vi_set_win_org_t vga_set_origin; 246 static vi_read_hw_cursor_t vga_read_hw_cursor; 247 static vi_set_hw_cursor_t vga_set_hw_cursor; 248 static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape; 249 static vi_blank_display_t vga_blank_display; 250 static vi_mmap_t vga_mmap_buf; 251 static vi_ioctl_t vga_dev_ioctl; 252 #ifndef VGA_NO_MODE_CHANGE 253 static vi_clear_t vga_clear; 254 static vi_fill_rect_t vga_fill_rect; 255 static vi_bitblt_t vga_bitblt; 256 #else /* VGA_NO_MODE_CHANGE */ 257 #define vga_clear (vi_clear_t *)vga_error 258 #define vga_fill_rect (vi_fill_rect_t *)vga_error 259 #define vga_bitblt (vi_bitblt_t *)vga_error 260 #endif 261 static vi_diag_t vga_diag; 262 263 static video_switch_t vgavidsw = { 264 vga_probe, 265 vga_init, 266 vga_get_info, 267 vga_query_mode, 268 vga_set_mode, 269 vga_save_font, 270 vga_load_font, 271 vga_show_font, 272 vga_save_palette, 273 vga_load_palette, 274 vga_set_border, 275 vga_save_state, 276 vga_load_state, 277 vga_set_origin, 278 vga_read_hw_cursor, 279 vga_set_hw_cursor, 280 vga_set_hw_cursor_shape, 281 vga_blank_display, 282 vga_mmap_buf, 283 vga_dev_ioctl, 284 vga_clear, 285 vga_fill_rect, 286 vga_bitblt, 287 vga_error, 288 vga_error, 289 vga_diag, 290 }; 291 292 VIDEO_DRIVER(mda, vgavidsw, NULL); 293 VIDEO_DRIVER(cga, vgavidsw, NULL); 294 VIDEO_DRIVER(ega, vgavidsw, NULL); 295 VIDEO_DRIVER(vga, vgavidsw, vga_configure); 296 297 /* VGA BIOS standard video modes */ 298 #define EOT (-1) 299 #define NA (-2) 300 301 static video_info_t bios_vmode[] = { 302 /* CGA */ 303 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1, 304 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 305 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1, 306 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 307 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1, 308 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 309 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1, 310 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 311 /* EGA */ 312 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1, 313 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 314 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1, 315 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 316 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1, 317 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 318 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1, 319 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 320 /* VGA */ 321 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1, 322 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 323 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1, 324 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 325 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1, 326 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 327 /* MDA */ 328 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1, 329 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 330 /* EGA */ 331 { M_ENH_B80x43, 0, 80, 43, 8, 8, 2, 1, 332 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 333 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1, 334 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 335 /* VGA */ 336 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1, 337 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 338 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1, 339 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 340 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1, 341 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 342 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1, 343 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 344 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1, 345 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 346 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1, 347 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 348 349 #ifndef VGA_NO_MODE_CHANGE 350 351 #ifdef VGA_WIDTH90 352 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1, 353 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 354 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1, 355 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 356 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1, 357 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 358 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1, 359 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 360 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1, 361 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 362 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1, 363 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 364 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1, 365 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 366 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1, 367 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 368 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1, 369 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 370 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1, 371 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 372 #endif /* VGA_WIDTH90 */ 373 374 /* CGA */ 375 { M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 376 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 377 { M_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 378 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 379 { M_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1, 380 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 381 /* EGA */ 382 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4, 383 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 384 V_INFO_MM_PLANAR }, 385 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4, 386 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 387 V_INFO_MM_PLANAR }, 388 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 389 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 , 390 V_INFO_MM_PLANAR }, 391 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 392 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 393 V_INFO_MM_PLANAR }, 394 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2, 395 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 396 V_INFO_MM_PLANAR }, 397 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 398 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 399 V_INFO_MM_PLANAR }, 400 /* VGA */ 401 { M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 402 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 403 V_INFO_MM_PLANAR }, 404 { M_CG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 405 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 406 V_INFO_MM_PLANAR }, 407 { M_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1, 408 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 409 V_INFO_MM_PACKED, 1 }, 410 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 4, 411 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 412 V_INFO_MM_VGAX, 1 }, 413 #endif /* VGA_NO_MODE_CHANGE */ 414 415 { EOT }, 416 }; 417 418 static int vga_init_done = FALSE; 419 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 420 static u_char *video_mode_ptr = NULL; /* EGA/VGA */ 421 static u_char *video_mode_ptr2 = NULL; /* CGA/MDA */ 422 #endif 423 static u_char *mode_map[V_MODE_MAP_SIZE]; 424 static adp_state_t adpstate; 425 static adp_state_t adpstate2; 426 static int rows_offset = 1; 427 428 /* local macros and functions */ 429 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 430 431 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 432 static void map_mode_table(u_char **, u_char *, int); 433 #endif 434 static void clear_mode_map(video_adapter_t *, u_char **, int, int); 435 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 436 static int map_mode_num(int); 437 #endif 438 static int map_bios_mode_num(int, int, int); 439 static u_char *get_mode_param(int); 440 #ifndef VGA_NO_BIOS 441 static void fill_adapter_param(int, video_adapter_t *); 442 #endif 443 static int verify_adapter(video_adapter_t *); 444 static void update_adapter_info(video_adapter_t *, video_info_t *); 445 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 446 #define COMP_IDENTICAL 0 447 #define COMP_SIMILAR 1 448 #define COMP_DIFFERENT 2 449 static int comp_adpregs(u_char *, u_char *); 450 #endif 451 static int probe_adapters(void); 452 static int set_line_length(video_adapter_t *, int); 453 static int set_display_start(video_adapter_t *, int, int); 454 455 #ifndef VGA_NO_MODE_CHANGE 456 #ifdef VGA_WIDTH90 457 static void set_width90(adp_state_t *); 458 #endif 459 #endif /* !VGA_NO_MODE_CHANGE */ 460 461 #ifndef VGA_NO_FONT_LOADING 462 #define PARAM_BUFSIZE 6 463 static void set_font_mode(video_adapter_t *, u_char *); 464 static void set_normal_mode(video_adapter_t *, u_char *); 465 #endif 466 467 #ifndef VGA_NO_MODE_CHANGE 468 static void filll_io(int, vm_offset_t, size_t); 469 static void planar_fill(video_adapter_t *, int); 470 static void packed_fill(video_adapter_t *, int); 471 static void direct_fill(video_adapter_t *, int); 472 #ifdef notyet 473 static void planar_fill_rect(video_adapter_t *, int, int, int, int, int); 474 static void packed_fill_rect(video_adapter_t *, int, int, int, int, int); 475 static void direct_fill_rect16(video_adapter_t *, int, int, int, int, int); 476 static void direct_fill_rect24(video_adapter_t *, int, int, int, int, int); 477 static void direct_fill_rect32(video_adapter_t *, int, int, int, int, int); 478 #endif /* notyet */ 479 #endif /* !VGA_NO_MODE_CHANGE */ 480 481 static void dump_buffer(u_char *, size_t); 482 483 #define ISMAPPED(pa, width) \ 484 (((pa) <= (u_long)0x1000 - (width)) \ 485 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width))) 486 487 #define prologue(adp, flag, err) \ 488 if (!vga_init_done || !((adp)->va_flags & (flag))) \ 489 return (err) 490 491 /* a backdoor for the console driver */ 492 static int 493 vga_configure(int flags) 494 { 495 int i; 496 497 probe_adapters(); 498 for (i = 0; i < biosadapters; ++i) { 499 if (!probe_done(&biosadapter[i])) 500 continue; 501 biosadapter[i].va_flags |= V_ADP_INITIALIZED; 502 if (!config_done(&biosadapter[i])) { 503 if (vid_register(&biosadapter[i]) < 0) 504 continue; 505 biosadapter[i].va_flags |= V_ADP_REGISTERED; 506 } 507 } 508 if (vga_sub_configure != NULL) 509 (*vga_sub_configure)(flags); 510 511 return biosadapters; 512 } 513 514 /* local subroutines */ 515 516 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 517 /* construct the mode parameter map */ 518 static void 519 map_mode_table(u_char *map[], u_char *table, int max) 520 { 521 int i; 522 523 for(i = 0; i < max; ++i) 524 map[i] = table + i*V_MODE_PARAM_SIZE; 525 for(; i < V_MODE_MAP_SIZE; ++i) 526 map[i] = NULL; 527 } 528 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 529 530 static void 531 clear_mode_map(video_adapter_t *adp, u_char *map[], int max, int color) 532 { 533 video_info_t info; 534 int i; 535 536 /* 537 * NOTE: we don't touch `bios_vmode[]' because it is shared 538 * by all adapters. 539 */ 540 for(i = 0; i < max; ++i) { 541 if (vga_get_info(adp, i, &info)) 542 continue; 543 if ((info.vi_flags & V_INFO_COLOR) != color) 544 map[i] = NULL; 545 } 546 } 547 548 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 549 /* map the non-standard video mode to a known mode number */ 550 static int 551 map_mode_num(int mode) 552 { 553 static struct { 554 int from; 555 int to; 556 } mode_map[] = { 557 { M_ENH_B80x43, M_ENH_B80x25 }, 558 { M_ENH_C80x43, M_ENH_C80x25 }, 559 { M_VGA_M80x30, M_VGA_M80x25 }, 560 { M_VGA_C80x30, M_VGA_C80x25 }, 561 { M_VGA_M80x50, M_VGA_M80x25 }, 562 { M_VGA_C80x50, M_VGA_C80x25 }, 563 { M_VGA_M80x60, M_VGA_M80x25 }, 564 { M_VGA_C80x60, M_VGA_C80x25 }, 565 #ifdef VGA_WIDTH90 566 { M_VGA_M90x25, M_VGA_M80x25 }, 567 { M_VGA_C90x25, M_VGA_C80x25 }, 568 { M_VGA_M90x30, M_VGA_M80x25 }, 569 { M_VGA_C90x30, M_VGA_C80x25 }, 570 { M_VGA_M90x43, M_ENH_B80x25 }, 571 { M_VGA_C90x43, M_ENH_C80x25 }, 572 { M_VGA_M90x50, M_VGA_M80x25 }, 573 { M_VGA_C90x50, M_VGA_C80x25 }, 574 { M_VGA_M90x60, M_VGA_M80x25 }, 575 { M_VGA_C90x60, M_VGA_C80x25 }, 576 #endif 577 { M_VGA_MODEX, M_VGA_CG320 }, 578 }; 579 int i; 580 581 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 582 if (mode_map[i].from == mode) 583 return mode_map[i].to; 584 } 585 return mode; 586 } 587 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 588 589 /* turn the BIOS video number into our video mode number */ 590 static int 591 map_bios_mode_num(int type, int color, int bios_mode) 592 { 593 static int cga_modes[7] = { 594 M_B40x25, M_C40x25, /* 0, 1 */ 595 M_B80x25, M_C80x25, /* 2, 3 */ 596 M_BG320, M_CG320, 597 M_BG640, 598 }; 599 static int ega_modes[17] = { 600 M_ENH_B40x25, M_ENH_C40x25, /* 0, 1 */ 601 M_ENH_B80x25, M_ENH_C80x25, /* 2, 3 */ 602 M_BG320, M_CG320, 603 M_BG640, 604 M_EGAMONO80x25, /* 7 */ 605 8, 9, 10, 11, 12, 606 M_CG320_D, 607 M_CG640_E, 608 M_ENHMONOAPA2, /* XXX: video momery > 64K */ 609 M_ENH_CG640, /* XXX: video momery > 64K */ 610 }; 611 static int vga_modes[20] = { 612 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */ 613 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */ 614 M_BG320, M_CG320, 615 M_BG640, 616 M_VGA_M80x25, /* 7 */ 617 8, 9, 10, 11, 12, 618 M_CG320_D, 619 M_CG640_E, 620 M_ENHMONOAPA2, 621 M_ENH_CG640, 622 M_BG640x480, M_CG640x480, 623 M_VGA_CG320, 624 }; 625 626 switch (type) { 627 628 case KD_VGA: 629 if (bios_mode < sizeof(vga_modes)/sizeof(vga_modes[0])) 630 return vga_modes[bios_mode]; 631 else if (color) 632 return M_VGA_C80x25; 633 else 634 return M_VGA_M80x25; 635 break; 636 637 case KD_EGA: 638 if (bios_mode < sizeof(ega_modes)/sizeof(ega_modes[0])) 639 return ega_modes[bios_mode]; 640 else if (color) 641 return M_ENH_C80x25; 642 else 643 return M_EGAMONO80x25; 644 break; 645 646 case KD_CGA: 647 if (bios_mode < sizeof(cga_modes)/sizeof(cga_modes[0])) 648 return cga_modes[bios_mode]; 649 else 650 return M_C80x25; 651 break; 652 653 case KD_MONO: 654 case KD_HERCULES: 655 return M_EGAMONO80x25; /* XXX: this name is confusing */ 656 657 default: 658 break; 659 } 660 return -1; 661 } 662 663 /* look up a parameter table entry */ 664 static u_char * 665 get_mode_param(int mode) 666 { 667 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 668 if (mode >= V_MODE_MAP_SIZE) 669 mode = map_mode_num(mode); 670 #endif 671 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE)) 672 return mode_map[mode]; 673 else 674 return NULL; 675 } 676 677 #ifndef VGA_NO_BIOS 678 static void 679 fill_adapter_param(int code, video_adapter_t *adp) 680 { 681 static struct { 682 int primary; 683 int secondary; 684 } dcc[] = { 685 { DCC_MONO, DCC_EGA40 /* CGA monitor */ }, 686 { DCC_MONO, DCC_EGA80 /* CGA monitor */ }, 687 { DCC_MONO, DCC_EGA80 }, 688 { DCC_MONO, DCC_EGA80 }, 689 { DCC_CGA40, DCC_EGAMONO }, 690 { DCC_CGA80, DCC_EGAMONO }, 691 { DCC_EGA40 /* CGA monitor */, DCC_MONO}, 692 { DCC_EGA80 /* CGA monitor */, DCC_MONO}, 693 { DCC_EGA80, DCC_MONO }, 694 { DCC_EGA80, DCC_MONO }, 695 { DCC_EGAMONO, DCC_CGA40 }, 696 { DCC_EGAMONO, DCC_CGA80 }, 697 }; 698 699 if ((code < 0) || (code >= sizeof(dcc)/sizeof(dcc[0]))) { 700 adp[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 701 adp[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 702 } else { 703 adp[V_ADP_PRIMARY] = adapter_init_value[dcc[code].primary]; 704 adp[V_ADP_SECONDARY] = adapter_init_value[dcc[code].secondary]; 705 } 706 } 707 #endif /* VGA_NO_BIOS */ 708 709 static int 710 verify_adapter(video_adapter_t *adp) 711 { 712 vm_offset_t buf; 713 u_int16_t v; 714 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 715 u_int32_t p; 716 #endif 717 718 buf = BIOS_PADDRTOVADDR(adp->va_window); 719 v = readw(buf); 720 writew(buf, 0xA55A); 721 if (readw(buf) != 0xA55A) 722 return ENXIO; 723 writew(buf, v); 724 725 switch (adp->va_type) { 726 727 case KD_EGA: 728 outb(adp->va_crtc_addr, 7); 729 if (inb(adp->va_crtc_addr) == 7) { 730 adp->va_type = KD_VGA; 731 adp->va_name = "vga"; 732 adp->va_flags |= V_ADP_STATESAVE | V_ADP_PALETTE; 733 } 734 adp->va_flags |= V_ADP_STATELOAD | V_ADP_BORDER; 735 /* the color adapter may be in the 40x25 mode... XXX */ 736 737 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 738 /* get the BIOS video mode pointer */ 739 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8); 740 p = BIOS_SADDRTOLADDR(p); 741 if (ISMAPPED(p, sizeof(u_int32_t))) { 742 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p); 743 p = BIOS_SADDRTOLADDR(p); 744 if (ISMAPPED(p, V_MODE_PARAM_SIZE)) 745 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p); 746 } 747 #endif 748 break; 749 750 case KD_CGA: 751 adp->va_flags |= V_ADP_COLOR | V_ADP_BORDER; 752 /* may be in the 40x25 mode... XXX */ 753 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 754 /* get the BIOS video mode pointer */ 755 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 756 p = BIOS_SADDRTOLADDR(p); 757 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 758 #endif 759 break; 760 761 case KD_MONO: 762 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 763 /* get the BIOS video mode pointer */ 764 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 765 p = BIOS_SADDRTOLADDR(p); 766 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 767 #endif 768 break; 769 } 770 771 return 0; 772 } 773 774 static void 775 update_adapter_info(video_adapter_t *adp, video_info_t *info) 776 { 777 adp->va_flags &= ~V_ADP_COLOR; 778 adp->va_flags |= 779 (info->vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; 780 adp->va_crtc_addr = 781 (adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; 782 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window); 783 adp->va_window_size = info->vi_window_size; 784 adp->va_window_gran = info->vi_window_gran; 785 adp->va_window_orig = 0; 786 /* XXX */ 787 adp->va_buffer = info->vi_buffer; 788 adp->va_buffer_size = info->vi_buffer_size; 789 if (info->vi_mem_model == V_INFO_MM_VGAX) { 790 adp->va_line_width = info->vi_width/2; 791 } else if (info->vi_flags & V_INFO_GRAPHICS) { 792 switch (info->vi_depth/info->vi_planes) { 793 case 1: 794 adp->va_line_width = info->vi_width/8; 795 break; 796 case 2: 797 adp->va_line_width = info->vi_width/4; 798 break; 799 case 4: 800 adp->va_line_width = info->vi_width/2; 801 break; 802 case 8: 803 default: /* shouldn't happen */ 804 adp->va_line_width = info->vi_width; 805 break; 806 } 807 } else { 808 adp->va_line_width = info->vi_width; 809 } 810 adp->va_disp_start.x = 0; 811 adp->va_disp_start.y = 0; 812 bcopy(info, &adp->va_info, sizeof(adp->va_info)); 813 } 814 815 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 816 /* compare two parameter table entries */ 817 static int 818 comp_adpregs(u_char *buf1, u_char *buf2) 819 { 820 static struct { 821 u_char mask; 822 } params[V_MODE_PARAM_SIZE] = { 823 {0xff}, {0x00}, {0xff}, /* COLS}, ROWS}, POINTS */ 824 {0x00}, {0x00}, /* page length */ 825 {0xfe}, {0xff}, {0xff}, {0xff}, /* sequencer registers */ 826 {0xf3}, /* misc register */ 827 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, /* CRTC */ 828 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, 829 {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, 830 {0x00}, {0xff}, {0x7f}, {0xff}, {0xff}, 831 {0x7f}, {0xff}, {0xff}, {0xef}, {0xff}, 832 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* attribute controller regs */ 833 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 834 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 835 {0xff}, {0xff}, {0xff}, {0xff}, {0xf0}, 836 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* GDC register */ 837 {0xff}, {0xff}, {0xff}, {0xff}, 838 }; 839 int identical = TRUE; 840 int i; 841 842 if ((buf1 == NULL) || (buf2 == NULL)) 843 return COMP_DIFFERENT; 844 845 for (i = 0; i < sizeof(params)/sizeof(params[0]); ++i) { 846 if (params[i].mask == 0) /* don't care */ 847 continue; 848 if ((buf1[i] & params[i].mask) != (buf2[i] & params[i].mask)) 849 return COMP_DIFFERENT; 850 if (buf1[i] != buf2[i]) 851 identical = FALSE; 852 } 853 return (identical) ? COMP_IDENTICAL : COMP_SIMILAR; 854 } 855 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 856 857 /* probe video adapters and return the number of detected adapters */ 858 static int 859 probe_adapters(void) 860 { 861 video_adapter_t *adp; 862 video_info_t info; 863 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 864 u_char *mp; 865 #endif 866 int i; 867 868 /* do this test only once */ 869 if (vga_init_done) 870 return biosadapters; 871 vga_init_done = TRUE; 872 873 /* 874 * Locate display adapters. 875 * The AT architecture supports upto two adapters. `syscons' allows 876 * the following combinations of adapters: 877 * 1) MDA + CGA 878 * 2) MDA + EGA/VGA color 879 * 3) CGA + EGA/VGA mono 880 * Note that `syscons' doesn't bother with MCGA as it is only 881 * avaiable for low end PS/2 models which has 80286 or earlier CPUs, 882 * thus, they are not running FreeBSD! 883 * When there are two adapaters in the system, one becomes `primary' 884 * and the other `secondary'. The EGA adapter has a set of DIP 885 * switches on board for this information and the EGA BIOS copies 886 * it in the BIOS data area BIOSDATA_VIDEOSWITCH (40:88). 887 * The VGA BIOS has more sophisticated mechanism and has this 888 * information in BIOSDATA_DCCINDEX (40:8a), but it also maintains 889 * compatibility with the EGA BIOS by updating BIOSDATA_VIDEOSWITCH. 890 */ 891 892 /* 893 * Check rtc and BIOS data area. 894 * XXX: we don't use BIOSDATA_EQUIPMENT, since it is not a dead 895 * copy of RTC_EQUIPMENT. Bits 4 and 5 of ETC_EQUIPMENT are 896 * zeros for EGA and VGA. However, the EGA/VGA BIOS sets 897 * these bits in BIOSDATA_EQUIPMENT according to the monitor 898 * type detected. 899 */ 900 #ifndef VGA_NO_BIOS 901 if (*(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8)) { 902 /* EGA/VGA BIOS is present */ 903 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 904 biosadapter); 905 } else { 906 switch ((rtcin(RTC_EQUIPMENT) >> 4) & 3) { /* bit 4 and 5 */ 907 case 0: 908 /* EGA/VGA: shouldn't be happening */ 909 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 910 biosadapter); 911 break; 912 case 1: 913 /* CGA 40x25 */ 914 /* FIXME: switch to the 80x25 mode? XXX */ 915 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA40]; 916 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 917 break; 918 case 2: 919 /* CGA 80x25 */ 920 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA80]; 921 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 922 break; 923 case 3: 924 /* MDA */ 925 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 926 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 927 break; 928 } 929 } 930 #else 931 /* assume EGA/VGA? XXX */ 932 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_EGA80]; 933 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 934 #endif /* VGA_NO_BIOS */ 935 936 biosadapters = 0; 937 if (verify_adapter(&biosadapter[V_ADP_SECONDARY]) == 0) { 938 ++biosadapters; 939 biosadapter[V_ADP_SECONDARY].va_flags |= V_ADP_PROBED; 940 biosadapter[V_ADP_SECONDARY].va_mode = 941 biosadapter[V_ADP_SECONDARY].va_initial_mode = 942 map_bios_mode_num(biosadapter[V_ADP_SECONDARY].va_type, 943 biosadapter[V_ADP_SECONDARY].va_flags 944 & V_ADP_COLOR, 945 biosadapter[V_ADP_SECONDARY].va_initial_bios_mode); 946 } else { 947 biosadapter[V_ADP_SECONDARY].va_type = -1; 948 } 949 if (verify_adapter(&biosadapter[V_ADP_PRIMARY]) == 0) { 950 ++biosadapters; 951 biosadapter[V_ADP_PRIMARY].va_flags |= V_ADP_PROBED; 952 #ifndef VGA_NO_BIOS 953 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 954 readb(BIOS_PADDRTOVADDR(0x449)); 955 #else 956 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 3; /* XXX */ 957 #endif 958 biosadapter[V_ADP_PRIMARY].va_mode = 959 biosadapter[V_ADP_PRIMARY].va_initial_mode = 960 map_bios_mode_num(biosadapter[V_ADP_PRIMARY].va_type, 961 biosadapter[V_ADP_PRIMARY].va_flags & V_ADP_COLOR, 962 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode); 963 } else { 964 biosadapter[V_ADP_PRIMARY] = biosadapter[V_ADP_SECONDARY]; 965 biosadapter[V_ADP_SECONDARY].va_type = -1; 966 } 967 if (biosadapters == 0) 968 return biosadapters; 969 biosadapter[V_ADP_PRIMARY].va_unit = V_ADP_PRIMARY; 970 biosadapter[V_ADP_SECONDARY].va_unit = V_ADP_SECONDARY; 971 972 #if 0 /* we don't need these... */ 973 fb_init_struct(&biosadapter[V_ADP_PRIMARY], ...); 974 fb_init_struct(&biosadapter[V_ADP_SECONDARY], ...); 975 #endif 976 977 #if notyet 978 /* 979 * We cannot have two video adapter of the same type; there must be 980 * only one of color or mono adapter, or one each of them. 981 */ 982 if (biosadapters > 1) { 983 if (!((biosadapter[0].va_flags ^ biosadapter[1].va_flags) 984 & V_ADP_COLOR)) 985 /* we have two mono or color adapters!! */ 986 return (biosadapters = 0); 987 } 988 #endif 989 990 /* 991 * Ensure a zero start address. This is mainly to recover after 992 * switching from pcvt using userconfig(). The registers are w/o 993 * for old hardware so it's too hard to relocate the active screen 994 * memory. 995 * This must be done before vga_save_state() for VGA. 996 */ 997 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 12); 998 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 999 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 13); 1000 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1001 1002 /* the video mode parameter table in EGA/VGA BIOS */ 1003 /* NOTE: there can be only one EGA/VGA, wheather color or mono, 1004 * recognized by the video BIOS. 1005 */ 1006 if ((biosadapter[V_ADP_PRIMARY].va_type == KD_EGA) || 1007 (biosadapter[V_ADP_PRIMARY].va_type == KD_VGA)) { 1008 adp = &biosadapter[V_ADP_PRIMARY]; 1009 } else if ((biosadapter[V_ADP_SECONDARY].va_type == KD_EGA) || 1010 (biosadapter[V_ADP_SECONDARY].va_type == KD_VGA)) { 1011 adp = &biosadapter[V_ADP_SECONDARY]; 1012 } else { 1013 adp = NULL; 1014 } 1015 bzero(mode_map, sizeof(mode_map)); 1016 if (adp != NULL) { 1017 if (adp->va_type == KD_VGA) { 1018 vga_save_state(adp, &adpstate, sizeof(adpstate)); 1019 for(i = 0; i < 16; i++) 1020 adp->va_palette_regs[i] = adpstate.regs[35 + i]; 1021 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1022 mode_map[adp->va_initial_mode] = adpstate.regs; 1023 rows_offset = 1; 1024 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1025 if (video_mode_ptr == NULL) { 1026 mode_map[adp->va_initial_mode] = adpstate.regs; 1027 rows_offset = 1; 1028 } else { 1029 /* discard the table if we are not familiar with it... */ 1030 map_mode_table(mode_map, video_mode_ptr, M_VGA_CG320 + 1); 1031 mp = get_mode_param(adp->va_initial_mode); 1032 if (mp != NULL) 1033 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs)); 1034 switch (comp_adpregs(adpstate.regs, mp)) { 1035 case COMP_IDENTICAL: 1036 /* 1037 * OK, this parameter table looks reasonably familiar 1038 * to us... 1039 */ 1040 /* 1041 * This is a kludge for Toshiba DynaBook SS433 1042 * whose BIOS video mode table entry has the actual # 1043 * of rows at the offset 1; BIOSes from other 1044 * manufacturers store the # of rows - 1 there. XXX 1045 */ 1046 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1047 break; 1048 1049 case COMP_SIMILAR: 1050 /* 1051 * Not exactly the same, but similar enough to be 1052 * trusted. However, use the saved register values 1053 * for the initial mode and other modes which are 1054 * based on the initial mode. 1055 */ 1056 mode_map[adp->va_initial_mode] = adpstate.regs; 1057 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1058 adpstate.regs[1] -= rows_offset - 1; 1059 break; 1060 1061 case COMP_DIFFERENT: 1062 default: 1063 /* 1064 * Don't use the paramter table in BIOS. It doesn't 1065 * look familiar to us. Video mode switching is allowed 1066 * only if the new mode is the same as or based on 1067 * the initial mode. 1068 */ 1069 video_mode_ptr = NULL; 1070 bzero(mode_map, sizeof(mode_map)); 1071 mode_map[adp->va_initial_mode] = adpstate.regs; 1072 rows_offset = 1; 1073 break; 1074 } 1075 } 1076 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1077 1078 #ifndef VGA_NO_MODE_CHANGE 1079 adp->va_flags |= V_ADP_MODECHANGE; 1080 #endif 1081 #ifndef VGA_NO_FONT_LOADING 1082 adp->va_flags |= V_ADP_FONT; 1083 #endif 1084 } else if (adp->va_type == KD_EGA) { 1085 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1086 rows_offset = 1; 1087 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1088 if (video_mode_ptr == NULL) { 1089 rows_offset = 1; 1090 } else { 1091 map_mode_table(mode_map, video_mode_ptr, M_ENH_C80x25 + 1); 1092 /* XXX how can one validate the EGA table... */ 1093 mp = get_mode_param(adp->va_initial_mode); 1094 if (mp != NULL) { 1095 adp->va_flags |= V_ADP_MODECHANGE; 1096 #ifndef VGA_NO_FONT_LOADING 1097 adp->va_flags |= V_ADP_FONT; 1098 #endif 1099 rows_offset = 1; 1100 } else { 1101 /* 1102 * This is serious. We will not be able to switch video 1103 * modes at all... 1104 */ 1105 video_mode_ptr = NULL; 1106 bzero(mode_map, sizeof(mode_map)); 1107 rows_offset = 1; 1108 } 1109 } 1110 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1111 } 1112 } 1113 1114 /* remove conflicting modes if we have more than one adapter */ 1115 if (biosadapters > 0) { 1116 for (i = 0; i < biosadapters; ++i) { 1117 if (!(biosadapter[i].va_flags & V_ADP_MODECHANGE)) 1118 continue; 1119 clear_mode_map(&biosadapter[i], mode_map, M_VGA_CG320 + 1, 1120 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1121 V_INFO_COLOR : 0); 1122 if ((biosadapter[i].va_type == KD_VGA) 1123 || (biosadapter[i].va_type == KD_EGA)) { 1124 biosadapter[i].va_io_base = 1125 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1126 IO_VGA : IO_MDA; 1127 biosadapter[i].va_io_size = 32; 1128 } 1129 } 1130 } 1131 1132 /* buffer address */ 1133 vga_get_info(&biosadapter[V_ADP_PRIMARY], 1134 biosadapter[V_ADP_PRIMARY].va_initial_mode, &info); 1135 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1136 update_adapter_info(&biosadapter[V_ADP_PRIMARY], &info); 1137 1138 if (biosadapters > 1) { 1139 vga_get_info(&biosadapter[V_ADP_SECONDARY], 1140 biosadapter[V_ADP_SECONDARY].va_initial_mode, &info); 1141 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1142 update_adapter_info(&biosadapter[V_ADP_SECONDARY], &info); 1143 } 1144 1145 /* 1146 * XXX: we should verify the following values for the primary adapter... 1147 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463); 1148 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02) 1149 * ? 0 : V_ADP_COLOR; 1150 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a); 1151 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484); 1152 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485); 1153 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c); 1154 */ 1155 1156 return biosadapters; 1157 } 1158 1159 /* set the scan line length in pixel */ 1160 static int 1161 set_line_length(video_adapter_t *adp, int pixel) 1162 { 1163 u_char *mp; 1164 int ppw; /* pixels per word */ 1165 int bpl; /* bytes per line */ 1166 int count; 1167 1168 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1169 return ENODEV; 1170 mp = get_mode_param(adp->va_mode); 1171 if (mp == NULL) 1172 return EINVAL; 1173 1174 switch (adp->va_info.vi_mem_model) { 1175 case V_INFO_MM_PLANAR: 1176 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1177 count = (pixel + ppw - 1)/ppw/2; 1178 bpl = ((pixel + ppw - 1)/ppw/2)*4; 1179 break; 1180 case V_INFO_MM_PACKED: 1181 count = (pixel + 7)/8; 1182 bpl = ((pixel + 7)/8)*8; 1183 break; 1184 case V_INFO_MM_TEXT: 1185 count = (pixel + 7)/8; /* columns */ 1186 bpl = (pixel + 7)/8; /* columns */ 1187 break; 1188 default: 1189 return ENODEV; 1190 } 1191 1192 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */ 1193 count *= 2; /* byte mode */ 1194 outb(adp->va_crtc_addr, 0x13); 1195 outb(adp->va_crtc_addr + 1, count); 1196 adp->va_line_width = bpl; 1197 1198 return 0; 1199 } 1200 1201 static int 1202 set_display_start(video_adapter_t *adp, int x, int y) 1203 { 1204 int off; /* byte offset (graphics mode)/word offset (text mode) */ 1205 int poff; /* pixel offset */ 1206 int roff; /* row offset */ 1207 int ppb; /* pixels per byte */ 1208 1209 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1210 x &= ~7; 1211 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) { 1212 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1213 off = y*adp->va_line_width + x/ppb; 1214 roff = 0; 1215 poff = x%ppb; 1216 } else { 1217 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1218 outb(TSIDX, 1); 1219 if (inb(TSREG) & 1) 1220 ppb = 9; 1221 else 1222 ppb = 8; 1223 } else { 1224 ppb = 8; 1225 } 1226 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb; 1227 roff = y%adp->va_info.vi_cheight; 1228 /* FIXME: is this correct? XXX */ 1229 if (ppb == 8) 1230 poff = x%ppb; 1231 else 1232 poff = (x + 8)%ppb; 1233 } 1234 1235 /* start address */ 1236 outb(adp->va_crtc_addr, 0xc); /* high */ 1237 outb(adp->va_crtc_addr + 1, off >> 8); 1238 outb(adp->va_crtc_addr, 0xd); /* low */ 1239 outb(adp->va_crtc_addr + 1, off & 0xff); 1240 1241 /* horizontal pel pan */ 1242 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1243 inb(adp->va_crtc_addr + 6); 1244 outb(ATC, 0x13 | 0x20); 1245 outb(ATC, poff); 1246 inb(adp->va_crtc_addr + 6); 1247 outb(ATC, 0x20); 1248 } 1249 1250 /* preset raw scan */ 1251 outb(adp->va_crtc_addr, 8); 1252 outb(adp->va_crtc_addr + 1, roff); 1253 1254 adp->va_disp_start.x = x; 1255 adp->va_disp_start.y = y; 1256 return 0; 1257 } 1258 1259 #ifndef VGA_NO_MODE_CHANGE 1260 #ifdef __i386__ /* XXX */ 1261 static void 1262 fill(int val, void *d, size_t size) 1263 { 1264 u_char *p = d; 1265 1266 while (size-- > 0) 1267 *p++ = val; 1268 } 1269 #endif /* __i386__ */ 1270 1271 static void 1272 filll_io(int val, vm_offset_t d, size_t size) 1273 { 1274 while (size-- > 0) { 1275 writel(d, val); 1276 d += sizeof(u_int32_t); 1277 } 1278 } 1279 #endif /* !VGA_NO_MODE_CHANGE */ 1280 1281 /* entry points */ 1282 1283 #if 0 1284 static int 1285 vga_nop(void) 1286 { 1287 return 0; 1288 } 1289 #endif 1290 1291 static int 1292 vga_error(void) 1293 { 1294 return ENODEV; 1295 } 1296 1297 static int 1298 vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 1299 { 1300 probe_adapters(); 1301 if (unit >= biosadapters) 1302 return ENXIO; 1303 1304 *adpp = &biosadapter[unit]; 1305 1306 return 0; 1307 } 1308 1309 static int 1310 vga_init(int unit, video_adapter_t *adp, int flags) 1311 { 1312 if ((unit >= biosadapters) || (adp == NULL) || !probe_done(adp)) 1313 return ENXIO; 1314 1315 if (!init_done(adp)) { 1316 /* nothing to do really... */ 1317 adp->va_flags |= V_ADP_INITIALIZED; 1318 } 1319 1320 if (!config_done(adp)) { 1321 if (vid_register(adp) < 0) 1322 return ENXIO; 1323 adp->va_flags |= V_ADP_REGISTERED; 1324 } 1325 if (vga_sub_configure != NULL) 1326 (*vga_sub_configure)(0); 1327 1328 return 0; 1329 } 1330 1331 /* 1332 * get_info(): 1333 * Return the video_info structure of the requested video mode. 1334 * 1335 * all adapters 1336 */ 1337 static int 1338 vga_get_info(video_adapter_t *adp, int mode, video_info_t *info) 1339 { 1340 int i; 1341 1342 if (!vga_init_done) 1343 return ENXIO; 1344 1345 #ifndef VGA_NO_MODE_CHANGE 1346 if (adp->va_flags & V_ADP_MODECHANGE) { 1347 /* 1348 * If the parameter table entry for this mode is not found, 1349 * the mode is not supported... 1350 */ 1351 if (get_mode_param(mode) == NULL) 1352 return EINVAL; 1353 } else 1354 #endif /* VGA_NO_MODE_CHANGE */ 1355 { 1356 /* 1357 * Even if we don't support video mode switching on this adapter, 1358 * the information on the initial (thus current) video mode 1359 * should be made available. 1360 */ 1361 if (mode != adp->va_initial_mode) 1362 return EINVAL; 1363 } 1364 1365 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1366 if (bios_vmode[i].vi_mode == NA) 1367 continue; 1368 if (mode == bios_vmode[i].vi_mode) { 1369 *info = bios_vmode[i]; 1370 /* XXX */ 1371 info->vi_buffer_size = info->vi_window_size*info->vi_planes; 1372 return 0; 1373 } 1374 } 1375 return EINVAL; 1376 } 1377 1378 /* 1379 * query_mode(): 1380 * Find a video mode matching the requested parameters. 1381 * Fields filled with 0 are considered "don't care" fields and 1382 * match any modes. 1383 * 1384 * all adapters 1385 */ 1386 static int 1387 vga_query_mode(video_adapter_t *adp, video_info_t *info) 1388 { 1389 int i; 1390 1391 if (!vga_init_done) 1392 return ENXIO; 1393 1394 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1395 if (bios_vmode[i].vi_mode == NA) 1396 continue; 1397 1398 if ((info->vi_width != 0) 1399 && (info->vi_width != bios_vmode[i].vi_width)) 1400 continue; 1401 if ((info->vi_height != 0) 1402 && (info->vi_height != bios_vmode[i].vi_height)) 1403 continue; 1404 if ((info->vi_cwidth != 0) 1405 && (info->vi_cwidth != bios_vmode[i].vi_cwidth)) 1406 continue; 1407 if ((info->vi_cheight != 0) 1408 && (info->vi_cheight != bios_vmode[i].vi_cheight)) 1409 continue; 1410 if ((info->vi_depth != 0) 1411 && (info->vi_depth != bios_vmode[i].vi_depth)) 1412 continue; 1413 if ((info->vi_planes != 0) 1414 && (info->vi_planes != bios_vmode[i].vi_planes)) 1415 continue; 1416 /* XXX: should check pixel format, memory model */ 1417 if ((info->vi_flags != 0) 1418 && (info->vi_flags != bios_vmode[i].vi_flags)) 1419 continue; 1420 1421 /* verify if this mode is supported on this adapter */ 1422 if (vga_get_info(adp, bios_vmode[i].vi_mode, info)) 1423 continue; 1424 return 0; 1425 } 1426 return ENODEV; 1427 } 1428 1429 /* 1430 * set_mode(): 1431 * Change the video mode. 1432 * 1433 * EGA/VGA 1434 */ 1435 1436 #ifndef VGA_NO_MODE_CHANGE 1437 #ifdef VGA_WIDTH90 1438 static void 1439 set_width90(adp_state_t *params) 1440 { 1441 /* 1442 * Based on code submitted by Kelly Yancey (kbyanc@freedomnet.com) 1443 * and alexv@sui.gda.itesm.mx. 1444 */ 1445 params->regs[5] |= 1; /* toggle 8 pixel wide fonts */ 1446 params->regs[10+0x0] = 0x6b; 1447 params->regs[10+0x1] = 0x59; 1448 params->regs[10+0x2] = 0x5a; 1449 params->regs[10+0x3] = 0x8e; 1450 params->regs[10+0x4] = 0x5e; 1451 params->regs[10+0x5] = 0x8a; 1452 params->regs[10+0x13] = 45; 1453 params->regs[35+0x13] = 0; 1454 } 1455 #endif /* VGA_WIDTH90 */ 1456 #endif /* !VGA_NO_MODE_CHANGE */ 1457 1458 static int 1459 vga_set_mode(video_adapter_t *adp, int mode) 1460 { 1461 #ifndef VGA_NO_MODE_CHANGE 1462 video_info_t info; 1463 adp_state_t params; 1464 1465 prologue(adp, V_ADP_MODECHANGE, ENODEV); 1466 1467 if (vga_get_info(adp, mode, &info)) 1468 return EINVAL; 1469 1470 #if VGA_DEBUG > 1 1471 kprintf("vga_set_mode(): setting mode %d\n", mode); 1472 #endif 1473 1474 params.sig = V_STATE_SIG; 1475 bcopy(get_mode_param(mode), params.regs, sizeof(params.regs)); 1476 1477 switch (mode) { 1478 #ifdef VGA_WIDTH90 1479 case M_VGA_C90x60: case M_VGA_M90x60: 1480 set_width90(¶ms); 1481 /* FALLTHROUGH */ 1482 #endif 1483 case M_VGA_C80x60: case M_VGA_M80x60: 1484 params.regs[2] = 0x08; 1485 params.regs[19] = 0x47; 1486 goto special_480l; 1487 1488 #ifdef VGA_WIDTH90 1489 case M_VGA_C90x30: case M_VGA_M90x30: 1490 set_width90(¶ms); 1491 /* FALLTHROUGH */ 1492 #endif 1493 case M_VGA_C80x30: case M_VGA_M80x30: 1494 params.regs[19] = 0x4f; 1495 special_480l: 1496 params.regs[9] |= 0xc0; 1497 params.regs[16] = 0x08; 1498 params.regs[17] = 0x3e; 1499 params.regs[26] = 0xea; 1500 params.regs[28] = 0xdf; 1501 params.regs[31] = 0xe7; 1502 params.regs[32] = 0x04; 1503 goto setup_mode; 1504 1505 #ifdef VGA_WIDTH90 1506 case M_VGA_C90x43: case M_VGA_M90x43: 1507 set_width90(¶ms); 1508 /* FALLTHROUGH */ 1509 #endif 1510 case M_ENH_C80x43: case M_ENH_B80x43: 1511 params.regs[28] = 87; 1512 goto special_80x50; 1513 1514 #ifdef VGA_WIDTH90 1515 case M_VGA_C90x50: case M_VGA_M90x50: 1516 set_width90(¶ms); 1517 /* FALLTHROUGH */ 1518 #endif 1519 case M_VGA_C80x50: case M_VGA_M80x50: 1520 special_80x50: 1521 params.regs[2] = 8; 1522 params.regs[19] = 7; 1523 goto setup_mode; 1524 1525 #ifdef VGA_WIDTH90 1526 case M_VGA_C90x25: case M_VGA_M90x25: 1527 set_width90(¶ms); 1528 /* FALLTHROUGH */ 1529 #endif 1530 case M_VGA_C40x25: case M_VGA_C80x25: 1531 case M_VGA_M80x25: 1532 case M_B40x25: case M_C40x25: 1533 case M_B80x25: case M_C80x25: 1534 case M_ENH_B40x25: case M_ENH_C40x25: 1535 case M_ENH_B80x25: case M_ENH_C80x25: 1536 case M_EGAMONO80x25: 1537 1538 setup_mode: 1539 vga_load_state(adp, ¶ms); 1540 break; 1541 1542 case M_VGA_MODEX: 1543 /* "unchain" the VGA mode */ 1544 params.regs[5-1+0x04] &= 0xf7; 1545 params.regs[5-1+0x04] |= 0x04; 1546 /* turn off doubleword mode */ 1547 params.regs[10+0x14] &= 0xbf; 1548 /* turn off word addressing */ 1549 params.regs[10+0x17] |= 0x40; 1550 /* set logical screen width */ 1551 params.regs[10+0x13] = 80; 1552 /* set 240 lines */ 1553 params.regs[10+0x11] = 0x2c; 1554 params.regs[10+0x06] = 0x0d; 1555 params.regs[10+0x07] = 0x3e; 1556 params.regs[10+0x10] = 0xea; 1557 params.regs[10+0x11] = 0xac; 1558 params.regs[10+0x12] = 0xdf; 1559 params.regs[10+0x15] = 0xe7; 1560 params.regs[10+0x16] = 0x06; 1561 /* set vertical sync polarity to reflect aspect ratio */ 1562 params.regs[9] = 0xe3; 1563 goto setup_grmode; 1564 1565 case M_BG320: case M_CG320: case M_BG640: 1566 case M_CG320_D: case M_CG640_E: 1567 case M_CG640x350: case M_ENH_CG640: 1568 case M_BG640x480: case M_CG640x480: case M_VGA_CG320: 1569 1570 setup_grmode: 1571 vga_load_state(adp, ¶ms); 1572 break; 1573 1574 default: 1575 return EINVAL; 1576 } 1577 1578 adp->va_mode = mode; 1579 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1580 update_adapter_info(adp, &info); 1581 1582 /* move hardware cursor out of the way */ 1583 (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1); 1584 1585 return 0; 1586 #else /* VGA_NO_MODE_CHANGE */ 1587 return ENODEV; 1588 #endif /* VGA_NO_MODE_CHANGE */ 1589 } 1590 1591 #ifndef VGA_NO_FONT_LOADING 1592 1593 static void 1594 set_font_mode(video_adapter_t *adp, u_char *buf) 1595 { 1596 u_char *mp; 1597 1598 crit_enter(); 1599 1600 /* save register values */ 1601 if (adp->va_type == KD_VGA) { 1602 outb(TSIDX, 0x02); buf[0] = inb(TSREG); 1603 outb(TSIDX, 0x04); buf[1] = inb(TSREG); 1604 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG); 1605 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG); 1606 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG); 1607 inb(adp->va_crtc_addr + 6); 1608 outb(ATC, 0x10); buf[5] = inb(ATC + 1); 1609 } else /* if (adp->va_type == KD_EGA) */ { 1610 /* 1611 * EGA cannot be read; copy parameters from the mode parameter 1612 * table. 1613 */ 1614 mp = get_mode_param(adp->va_mode); 1615 buf[0] = mp[5 + 0x02 - 1]; 1616 buf[1] = mp[5 + 0x04 - 1]; 1617 buf[2] = mp[55 + 0x04]; 1618 buf[3] = mp[55 + 0x05]; 1619 buf[4] = mp[55 + 0x06]; 1620 buf[5] = mp[35 + 0x10]; 1621 } 1622 1623 /* setup vga for loading fonts */ 1624 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1625 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01); 1626 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1627 outb(ATC, 0x20); /* enable palette */ 1628 1629 #if VGA_SLOW_IOACCESS 1630 #ifdef VGA_ALT_SEQACCESS 1631 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1632 #endif 1633 outb(TSIDX, 0x02); outb(TSREG, 0x04); 1634 outb(TSIDX, 0x04); outb(TSREG, 0x07); 1635 #ifdef VGA_ALT_SEQACCESS 1636 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1637 #endif 1638 outb(GDCIDX, 0x04); outb(GDCREG, 0x02); 1639 outb(GDCIDX, 0x05); outb(GDCREG, 0x00); 1640 outb(GDCIDX, 0x06); outb(GDCREG, 0x04); 1641 #else /* VGA_SLOW_IOACCESS */ 1642 #ifdef VGA_ALT_SEQACCESS 1643 outw(TSIDX, 0x0100); 1644 #endif 1645 outw(TSIDX, 0x0402); 1646 outw(TSIDX, 0x0704); 1647 #ifdef VGA_ALT_SEQACCESS 1648 outw(TSIDX, 0x0300); 1649 #endif 1650 outw(GDCIDX, 0x0204); 1651 outw(GDCIDX, 0x0005); 1652 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */ 1653 #endif /* VGA_SLOW_IOACCESS */ 1654 1655 crit_exit(); 1656 } 1657 1658 static void 1659 set_normal_mode(video_adapter_t *adp, u_char *buf) 1660 { 1661 crit_enter(); 1662 1663 /* setup vga for normal operation mode again */ 1664 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1665 outb(ATC, 0x10); outb(ATC, buf[5]); 1666 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1667 outb(ATC, 0x20); /* enable palette */ 1668 1669 #if VGA_SLOW_IOACCESS 1670 #ifdef VGA_ALT_SEQACCESS 1671 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1672 #endif 1673 outb(TSIDX, 0x02); outb(TSREG, buf[0]); 1674 outb(TSIDX, 0x04); outb(TSREG, buf[1]); 1675 #ifdef VGA_ALT_SEQACCESS 1676 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1677 #endif 1678 outb(GDCIDX, 0x04); outb(GDCREG, buf[2]); 1679 outb(GDCIDX, 0x05); outb(GDCREG, buf[3]); 1680 if (adp->va_crtc_addr == MONO_CRTC) { 1681 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x08); 1682 } else { 1683 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x0c); 1684 } 1685 #else /* VGA_SLOW_IOACCESS */ 1686 #ifdef VGA_ALT_SEQACCESS 1687 outw(TSIDX, 0x0100); 1688 #endif 1689 outw(TSIDX, 0x0002 | (buf[0] << 8)); 1690 outw(TSIDX, 0x0004 | (buf[1] << 8)); 1691 #ifdef VGA_ALT_SEQACCESS 1692 outw(TSIDX, 0x0300); 1693 #endif 1694 outw(GDCIDX, 0x0004 | (buf[2] << 8)); 1695 outw(GDCIDX, 0x0005 | (buf[3] << 8)); 1696 if (adp->va_crtc_addr == MONO_CRTC) 1697 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x08)<<8)); 1698 else 1699 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8)); 1700 #endif /* VGA_SLOW_IOACCESS */ 1701 1702 crit_exit(); 1703 } 1704 1705 #endif /* VGA_NO_FONT_LOADING */ 1706 1707 /* 1708 * save_font(): 1709 * Read the font data in the requested font page from the video adapter. 1710 * 1711 * EGA/VGA 1712 */ 1713 static int 1714 vga_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1715 int ch, int count) 1716 { 1717 #ifndef VGA_NO_FONT_LOADING 1718 u_char buf[PARAM_BUFSIZE]; 1719 u_int32_t segment; 1720 int c; 1721 #ifdef VGA_ALT_SEQACCESS 1722 u_char val = 0; 1723 #endif 1724 1725 prologue(adp, V_ADP_FONT, ENODEV); 1726 1727 if (fontsize < 14) { 1728 /* FONT_8 */ 1729 fontsize = 8; 1730 } else if (fontsize >= 32) { 1731 fontsize = 32; 1732 } else if (fontsize >= 16) { 1733 /* FONT_16 */ 1734 fontsize = 16; 1735 } else { 1736 /* FONT_14 */ 1737 fontsize = 14; 1738 } 1739 1740 if (page < 0 || page >= 8) 1741 return EINVAL; 1742 segment = FONT_BUF + 0x4000*page; 1743 if (page > 3) 1744 segment -= 0xe000; 1745 1746 #ifdef VGA_ALT_SEQACCESS 1747 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1748 crit_enter(); 1749 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1750 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1751 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1752 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1753 crit_exit(); 1754 } 1755 #endif 1756 1757 set_font_mode(adp, buf); 1758 if (fontsize == 32) { 1759 bcopy_fromio(segment + ch*32, data, fontsize*count); 1760 } else { 1761 for (c = ch; count > 0; ++c, --count) { 1762 bcopy_fromio(segment + c*32, data, fontsize); 1763 data += fontsize; 1764 } 1765 } 1766 set_normal_mode(adp, buf); 1767 1768 #ifdef VGA_ALT_SEQACCESS 1769 if (adp->va_type == KD_VGA) { 1770 crit_enter(); 1771 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1772 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1773 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1774 crit_exit(); 1775 } 1776 #endif 1777 1778 return 0; 1779 #else /* VGA_NO_FONT_LOADING */ 1780 return ENODEV; 1781 #endif /* VGA_NO_FONT_LOADING */ 1782 } 1783 1784 /* 1785 * load_font(): 1786 * Set the font data in the requested font page. 1787 * NOTE: it appears that some recent video adapters do not support 1788 * the font page other than 0... XXX 1789 * 1790 * EGA/VGA 1791 */ 1792 static int 1793 vga_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1794 int ch, int count) 1795 { 1796 #ifndef VGA_NO_FONT_LOADING 1797 u_char buf[PARAM_BUFSIZE]; 1798 u_int32_t segment; 1799 int c; 1800 #ifdef VGA_ALT_SEQACCESS 1801 u_char val = 0; 1802 #endif 1803 1804 prologue(adp, V_ADP_FONT, ENODEV); 1805 1806 if (fontsize < 14) { 1807 /* FONT_8 */ 1808 fontsize = 8; 1809 } else if (fontsize >= 32) { 1810 fontsize = 32; 1811 } else if (fontsize >= 16) { 1812 /* FONT_16 */ 1813 fontsize = 16; 1814 } else { 1815 /* FONT_14 */ 1816 fontsize = 14; 1817 } 1818 1819 if (page < 0 || page >= 8) 1820 return EINVAL; 1821 segment = FONT_BUF + 0x4000*page; 1822 if (page > 3) 1823 segment -= 0xe000; 1824 1825 #ifdef VGA_ALT_SEQACCESS 1826 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1827 crit_enter(); 1828 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1829 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1830 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1831 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1832 crit_exit(); 1833 } 1834 #endif 1835 1836 set_font_mode(adp, buf); 1837 if (fontsize == 32) { 1838 bcopy_toio(data, segment + ch*32, fontsize*count); 1839 } else { 1840 for (c = ch; count > 0; ++c, --count) { 1841 bcopy_toio(data, segment + c*32, fontsize); 1842 data += fontsize; 1843 } 1844 } 1845 set_normal_mode(adp, buf); 1846 1847 #ifdef VGA_ALT_SEQACCESS 1848 if (adp->va_type == KD_VGA) { 1849 crit_enter(); 1850 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1851 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1852 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1853 crit_exit(); 1854 } 1855 #endif 1856 1857 return 0; 1858 #else /* VGA_NO_FONT_LOADING */ 1859 return ENODEV; 1860 #endif /* VGA_NO_FONT_LOADING */ 1861 } 1862 1863 /* 1864 * show_font(): 1865 * Activate the requested font page. 1866 * NOTE: it appears that some recent video adapters do not support 1867 * the font page other than 0... XXX 1868 * 1869 * EGA/VGA 1870 */ 1871 static int 1872 vga_show_font(video_adapter_t *adp, int page) 1873 { 1874 #ifndef VGA_NO_FONT_LOADING 1875 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f }; 1876 1877 prologue(adp, V_ADP_FONT, ENODEV); 1878 if (page < 0 || page >= 8) 1879 return EINVAL; 1880 1881 crit_enter(); 1882 outb(TSIDX, 0x03); outb(TSREG, cg[page]); 1883 crit_exit(); 1884 1885 return 0; 1886 #else /* VGA_NO_FONT_LOADING */ 1887 return ENODEV; 1888 #endif /* VGA_NO_FONT_LOADING */ 1889 } 1890 1891 /* 1892 * save_palette(): 1893 * Read DAC values. The values have expressed in 8 bits. 1894 * 1895 * VGA 1896 */ 1897 static int 1898 vga_save_palette(video_adapter_t *adp, u_char *palette) 1899 { 1900 int i; 1901 1902 prologue(adp, V_ADP_PALETTE, ENODEV); 1903 1904 /* 1905 * We store 8 bit values in the palette buffer, while the standard 1906 * VGA has 6 bit DAC . 1907 */ 1908 outb(PALRADR, 0x00); 1909 for (i = 0; i < 256*3; ++i) 1910 palette[i] = inb(PALDATA) << 2; 1911 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1912 return 0; 1913 } 1914 1915 static int 1916 vga_save_palette2(video_adapter_t *adp, int base, int count, 1917 u_char *r, u_char *g, u_char *b) 1918 { 1919 int i; 1920 1921 prologue(adp, V_ADP_PALETTE, ENODEV); 1922 1923 outb(PALRADR, base); 1924 for (i = 0; i < count; ++i) { 1925 r[i] = inb(PALDATA) << 2; 1926 g[i] = inb(PALDATA) << 2; 1927 b[i] = inb(PALDATA) << 2; 1928 } 1929 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1930 return 0; 1931 } 1932 1933 /* 1934 * load_palette(): 1935 * Set DAC values. 1936 * 1937 * VGA 1938 */ 1939 static int 1940 vga_load_palette(video_adapter_t *adp, const u_char *palette) 1941 { 1942 int i; 1943 1944 prologue(adp, V_ADP_PALETTE, ENODEV); 1945 1946 outb(PIXMASK, 0xff); /* no pixelmask */ 1947 outb(PALWADR, 0x00); 1948 for (i = 0; i < 256*3; ++i) 1949 outb(PALDATA, palette[i] >> 2); 1950 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1951 outb(ATC, 0x20); /* enable palette */ 1952 return 0; 1953 } 1954 1955 static int 1956 vga_load_palette2(video_adapter_t *adp, int base, int count, 1957 u_char *r, u_char *g, u_char *b) 1958 { 1959 int i; 1960 1961 prologue(adp, V_ADP_PALETTE, ENODEV); 1962 1963 outb(PIXMASK, 0xff); /* no pixelmask */ 1964 outb(PALWADR, base); 1965 for (i = 0; i < count; ++i) { 1966 outb(PALDATA, r[i] >> 2); 1967 outb(PALDATA, g[i] >> 2); 1968 outb(PALDATA, b[i] >> 2); 1969 } 1970 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1971 outb(ATC, 0x20); /* enable palette */ 1972 return 0; 1973 } 1974 1975 /* 1976 * set_border(): 1977 * Change the border color. 1978 * 1979 * CGA/EGA/VGA 1980 */ 1981 static int 1982 vga_set_border(video_adapter_t *adp, int color) 1983 { 1984 prologue(adp, V_ADP_BORDER, ENODEV); 1985 1986 switch (adp->va_type) { 1987 case KD_EGA: 1988 case KD_VGA: 1989 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1990 outb(ATC, 0x31); outb(ATC, color & 0xff); 1991 break; 1992 case KD_CGA: 1993 outb(adp->va_crtc_addr + 5, color & 0x0f); /* color select register */ 1994 break; 1995 case KD_MONO: 1996 case KD_HERCULES: 1997 default: 1998 break; 1999 } 2000 return 0; 2001 } 2002 2003 /* 2004 * save_state(): 2005 * Read video register values. 2006 * NOTE: this function only reads the standard EGA/VGA registers. 2007 * any extra/extended registers of SVGA adapters are not saved. 2008 * 2009 * VGA 2010 */ 2011 static int 2012 vga_save_state(video_adapter_t *adp, void *p, size_t size) 2013 { 2014 video_info_t info; 2015 u_char *buf; 2016 int crtc_addr; 2017 int i, j; 2018 2019 if (size == 0) { 2020 /* return the required buffer size */ 2021 prologue(adp, V_ADP_STATESAVE, 0); 2022 return sizeof(adp_state_t); 2023 } else { 2024 prologue(adp, V_ADP_STATESAVE, ENODEV); 2025 if (size < sizeof(adp_state_t)) 2026 return EINVAL; 2027 } 2028 2029 ((adp_state_t *)p)->sig = V_STATE_SIG; 2030 buf = ((adp_state_t *)p)->regs; 2031 bzero(buf, V_MODE_PARAM_SIZE); 2032 crtc_addr = adp->va_crtc_addr; 2033 2034 crit_enter(); 2035 2036 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2037 for (i = 0, j = 5; i < 4; i++) { 2038 outb(TSIDX, i + 1); 2039 buf[j++] = inb(TSREG); 2040 } 2041 buf[9] = inb(MISC + 10); /* dot-clock */ 2042 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2043 2044 for (i = 0, j = 10; i < 25; i++) { /* crtc */ 2045 outb(crtc_addr, i); 2046 buf[j++] = inb(crtc_addr + 1); 2047 } 2048 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */ 2049 inb(crtc_addr + 6); /* reset flip-flop */ 2050 outb(ATC, i); 2051 buf[j++] = inb(ATC + 1); 2052 } 2053 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */ 2054 outb(GDCIDX, i); 2055 buf[j++] = inb(GDCREG); 2056 } 2057 inb(crtc_addr + 6); /* reset flip-flop */ 2058 outb(ATC, 0x20); /* enable palette */ 2059 2060 crit_exit(); 2061 2062 #if 1 2063 if (vga_get_info(adp, adp->va_mode, &info) == 0) { 2064 if (info.vi_flags & V_INFO_GRAPHICS) { 2065 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */ 2066 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */ 2067 } else { 2068 buf[0] = info.vi_width; /* COLS */ 2069 buf[1] = info.vi_height - 1; /* ROWS */ 2070 } 2071 buf[2] = info.vi_cheight; /* POINTS */ 2072 } else { 2073 /* XXX: shouldn't be happening... */ 2074 kprintf("vga%d: %s: failed to obtain mode info. (vga_save_state())\n", 2075 adp->va_unit, adp->va_name); 2076 } 2077 #else 2078 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */ 2079 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */ 2080 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */ 2081 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c)); 2082 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d)); 2083 #endif 2084 2085 return 0; 2086 } 2087 2088 /* 2089 * load_state(): 2090 * Set video registers at once. 2091 * NOTE: this function only updates the standard EGA/VGA registers. 2092 * any extra/extended registers of SVGA adapters are not changed. 2093 * 2094 * EGA/VGA 2095 */ 2096 static int 2097 vga_load_state(video_adapter_t *adp, void *p) 2098 { 2099 u_char *buf; 2100 int crtc_addr; 2101 int i; 2102 2103 prologue(adp, V_ADP_STATELOAD, ENODEV); 2104 if (((adp_state_t *)p)->sig != V_STATE_SIG) 2105 return EINVAL; 2106 2107 buf = ((adp_state_t *)p)->regs; 2108 crtc_addr = adp->va_crtc_addr; 2109 2110 #if VGA_DEBUG > 1 2111 dump_buffer(buf, V_MODE_PARAM_SIZE); 2112 #endif 2113 2114 crit_enter(); 2115 2116 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2117 for (i = 0; i < 4; ++i) { /* program sequencer */ 2118 outb(TSIDX, i + 1); 2119 outb(TSREG, buf[i + 5]); 2120 } 2121 outb(MISC, buf[9]); /* set dot-clock */ 2122 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2123 outb(crtc_addr, 0x11); 2124 outb(crtc_addr + 1, inb(crtc_addr + 1) & 0x7F); 2125 for (i = 0; i < 25; ++i) { /* program crtc */ 2126 outb(crtc_addr, i); 2127 outb(crtc_addr + 1, buf[i + 10]); 2128 } 2129 inb(crtc_addr+6); /* reset flip-flop */ 2130 for (i = 0; i < 20; ++i) { /* program attribute ctrl */ 2131 outb(ATC, i); 2132 outb(ATC, buf[i + 35]); 2133 } 2134 for (i = 0; i < 9; ++i) { /* program graph data ctrl */ 2135 outb(GDCIDX, i); 2136 outb(GDCREG, buf[i + 55]); 2137 } 2138 inb(crtc_addr + 6); /* reset flip-flop */ 2139 outb(ATC, 0x20); /* enable palette */ 2140 2141 #if notyet /* a temporary workaround for kernel panic, XXX */ 2142 #ifndef VGA_NO_BIOS 2143 if (adp->va_unit == V_ADP_PRIMARY) { 2144 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */ 2145 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */ 2146 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */ 2147 #if 0 2148 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]); 2149 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]); 2150 #endif 2151 } 2152 #endif /* VGA_NO_BIOS */ 2153 #endif /* notyet */ 2154 2155 crit_exit(); 2156 return 0; 2157 } 2158 2159 /* 2160 * set_origin(): 2161 * Change the origin (window mapping) of the banked frame buffer. 2162 */ 2163 static int 2164 vga_set_origin(video_adapter_t *adp, off_t offset) 2165 { 2166 /* 2167 * The standard video modes do not require window mapping; 2168 * always return error. 2169 */ 2170 return ENODEV; 2171 } 2172 2173 /* 2174 * read_hw_cursor(): 2175 * Read the position of the hardware text cursor. 2176 * 2177 * all adapters 2178 */ 2179 static int 2180 vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 2181 { 2182 u_int16_t off; 2183 2184 if (!vga_init_done) 2185 return ENXIO; 2186 2187 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2188 return ENODEV; 2189 2190 crit_enter(); 2191 outb(adp->va_crtc_addr, 14); 2192 off = inb(adp->va_crtc_addr + 1); 2193 outb(adp->va_crtc_addr, 15); 2194 off = (off << 8) | inb(adp->va_crtc_addr + 1); 2195 crit_exit(); 2196 2197 *row = off / adp->va_info.vi_width; 2198 *col = off % adp->va_info.vi_width; 2199 2200 return 0; 2201 } 2202 2203 /* 2204 * set_hw_cursor(): 2205 * Move the hardware text cursor. If col and row are both -1, 2206 * the cursor won't be shown. 2207 * 2208 * all adapters 2209 */ 2210 static int 2211 vga_set_hw_cursor(video_adapter_t *adp, int col, int row) 2212 { 2213 u_int16_t off; 2214 2215 if (!vga_init_done) 2216 return ENXIO; 2217 2218 if ((col == -1) && (row == -1)) { 2219 off = -1; 2220 } else { 2221 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2222 return ENODEV; 2223 off = row*adp->va_info.vi_width + col; 2224 } 2225 2226 crit_enter(); 2227 outb(adp->va_crtc_addr, 14); 2228 outb(adp->va_crtc_addr + 1, off >> 8); 2229 outb(adp->va_crtc_addr, 15); 2230 outb(adp->va_crtc_addr + 1, off & 0x00ff); 2231 crit_exit(); 2232 2233 return 0; 2234 } 2235 2236 /* 2237 * set_hw_cursor_shape(): 2238 * Change the shape of the hardware text cursor. If the height is 2239 * zero or negative, the cursor won't be shown. 2240 * 2241 * all adapters 2242 */ 2243 static int 2244 vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 2245 int celsize, int blink) 2246 { 2247 if (!vga_init_done) 2248 return ENXIO; 2249 2250 crit_enter(); 2251 switch (adp->va_type) { 2252 case KD_VGA: 2253 case KD_CGA: 2254 case KD_MONO: 2255 case KD_HERCULES: 2256 default: 2257 if (height <= 0) { 2258 /* make the cursor invisible */ 2259 outb(adp->va_crtc_addr, 10); 2260 outb(adp->va_crtc_addr + 1, 32); 2261 outb(adp->va_crtc_addr, 11); 2262 outb(adp->va_crtc_addr + 1, 0); 2263 } else { 2264 outb(adp->va_crtc_addr, 10); 2265 outb(adp->va_crtc_addr + 1, celsize - base - height); 2266 outb(adp->va_crtc_addr, 11); 2267 outb(adp->va_crtc_addr + 1, celsize - base - 1); 2268 } 2269 break; 2270 case KD_EGA: 2271 if (height <= 0) { 2272 /* make the cursor invisible */ 2273 outb(adp->va_crtc_addr, 10); 2274 outb(adp->va_crtc_addr + 1, celsize); 2275 outb(adp->va_crtc_addr, 11); 2276 outb(adp->va_crtc_addr + 1, 0); 2277 } else { 2278 outb(adp->va_crtc_addr, 10); 2279 outb(adp->va_crtc_addr + 1, celsize - base - height); 2280 outb(adp->va_crtc_addr, 11); 2281 outb(adp->va_crtc_addr + 1, celsize - base); 2282 } 2283 break; 2284 } 2285 crit_exit(); 2286 2287 return 0; 2288 } 2289 2290 /* 2291 * blank_display() 2292 * Put the display in power save/power off mode. 2293 * 2294 * all adapters 2295 */ 2296 static int 2297 vga_blank_display(video_adapter_t *adp, int mode) 2298 { 2299 u_char val; 2300 2301 crit_enter(); 2302 switch (adp->va_type) { 2303 case KD_VGA: 2304 switch (mode) { 2305 case V_DISPLAY_SUSPEND: 2306 case V_DISPLAY_STAND_BY: 2307 outb(TSIDX, 0x01); 2308 val = inb(TSREG); 2309 outb(TSIDX, 0x01); 2310 outb(TSREG, val | 0x20); 2311 outb(adp->va_crtc_addr, 0x17); 2312 val = inb(adp->va_crtc_addr + 1); 2313 outb(adp->va_crtc_addr + 1, val & ~0x80); 2314 break; 2315 case V_DISPLAY_BLANK: 2316 outb(TSIDX, 0x01); 2317 val = inb(TSREG); 2318 outb(TSIDX, 0x01); 2319 outb(TSREG, val | 0x20); 2320 break; 2321 case V_DISPLAY_ON: 2322 outb(TSIDX, 0x01); 2323 val = inb(TSREG); 2324 outb(TSIDX, 0x01); 2325 outb(TSREG, val & 0xDF); 2326 outb(adp->va_crtc_addr, 0x17); 2327 val = inb(adp->va_crtc_addr + 1); 2328 outb(adp->va_crtc_addr + 1, val | 0x80); 2329 break; 2330 } 2331 break; 2332 2333 case KD_EGA: 2334 /* no support yet */ 2335 crit_exit(); 2336 return ENODEV; 2337 2338 case KD_CGA: 2339 switch (mode) { 2340 case V_DISPLAY_SUSPEND: 2341 case V_DISPLAY_STAND_BY: 2342 case V_DISPLAY_BLANK: 2343 outb(adp->va_crtc_addr + 4, 0x25); 2344 break; 2345 case V_DISPLAY_ON: 2346 outb(adp->va_crtc_addr + 4, 0x2d); 2347 break; 2348 } 2349 break; 2350 2351 case KD_MONO: 2352 case KD_HERCULES: 2353 switch (mode) { 2354 case V_DISPLAY_SUSPEND: 2355 case V_DISPLAY_STAND_BY: 2356 case V_DISPLAY_BLANK: 2357 outb(adp->va_crtc_addr + 4, 0x21); 2358 break; 2359 case V_DISPLAY_ON: 2360 outb(adp->va_crtc_addr + 4, 0x29); 2361 break; 2362 } 2363 break; 2364 default: 2365 break; 2366 } 2367 crit_exit(); 2368 2369 return 0; 2370 } 2371 2372 /* 2373 * mmap(): 2374 * Mmap frame buffer. 2375 * 2376 * all adapters 2377 */ 2378 static int 2379 vga_mmap_buf(video_adapter_t *adp, vm_offset_t offset, int prot) 2380 { 2381 if (adp->va_info.vi_flags & V_INFO_LINEAR) 2382 return -1; 2383 2384 #if VGA_DEBUG > 0 2385 kprintf("vga_mmap_buf(): window:0x%x, offset:0x%x\n", 2386 adp->va_info.vi_window, offset); 2387 #endif 2388 2389 /* XXX: is this correct? */ 2390 if (offset > adp->va_window_size - PAGE_SIZE) 2391 return -1; 2392 2393 #ifdef __i386__ 2394 return i386_btop(adp->va_info.vi_window + offset); 2395 #endif 2396 } 2397 2398 #ifndef VGA_NO_MODE_CHANGE 2399 2400 static void 2401 planar_fill(video_adapter_t *adp, int val) 2402 { 2403 int length; 2404 int at; /* position in the frame buffer */ 2405 int l; 2406 2407 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2408 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2409 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2410 outw(GDCIDX, 0xff08); /* bit mask */ 2411 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2412 at = 0; 2413 length = adp->va_line_width*adp->va_info.vi_height; 2414 while (length > 0) { 2415 l = imin(length, adp->va_window_size); 2416 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2417 bzero_io(adp->va_window, l); 2418 length -= l; 2419 at += l; 2420 } 2421 outw(GDCIDX, 0x0000); /* set/reset */ 2422 outw(GDCIDX, 0x0001); /* set/reset enable */ 2423 } 2424 2425 static void 2426 packed_fill(video_adapter_t *adp, int val) 2427 { 2428 int length; 2429 int at; /* position in the frame buffer */ 2430 int l; 2431 2432 at = 0; 2433 length = adp->va_line_width*adp->va_info.vi_height; 2434 while (length > 0) { 2435 l = imin(length, adp->va_window_size); 2436 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2437 fill_io(val, adp->va_window, l); 2438 length -= l; 2439 at += l; 2440 } 2441 } 2442 2443 static void 2444 direct_fill(video_adapter_t *adp, int val) 2445 { 2446 int length; 2447 int at; /* position in the frame buffer */ 2448 int l; 2449 2450 at = 0; 2451 length = adp->va_line_width*adp->va_info.vi_height; 2452 while (length > 0) { 2453 l = imin(length, adp->va_window_size); 2454 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2455 switch (adp->va_info.vi_pixel_size) { 2456 case sizeof(u_int16_t): 2457 fillw_io(val, adp->va_window, l/sizeof(u_int16_t)); 2458 break; 2459 case 3: 2460 /* FIXME */ 2461 break; 2462 case sizeof(u_int32_t): 2463 filll_io(val, adp->va_window, l/sizeof(u_int32_t)); 2464 break; 2465 } 2466 length -= l; 2467 at += l; 2468 } 2469 } 2470 2471 static int 2472 vga_clear(video_adapter_t *adp) 2473 { 2474 switch (adp->va_info.vi_mem_model) { 2475 case V_INFO_MM_TEXT: 2476 /* do nothing? XXX */ 2477 break; 2478 case V_INFO_MM_PLANAR: 2479 planar_fill(adp, 0); 2480 break; 2481 case V_INFO_MM_PACKED: 2482 packed_fill(adp, 0); 2483 break; 2484 case V_INFO_MM_DIRECT: 2485 direct_fill(adp, 0); 2486 break; 2487 } 2488 return 0; 2489 } 2490 2491 #ifdef notyet 2492 static void 2493 planar_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2494 { 2495 int banksize; 2496 int bank; 2497 int pos; 2498 int offset; /* offset within window */ 2499 int bx; 2500 int l; 2501 2502 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2503 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2504 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2505 outw(GDCIDX, 0xff08); /* bit mask */ 2506 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2507 2508 banksize = adp->va_window_size; 2509 bank = -1; 2510 while (cy > 0) { 2511 pos = adp->va_line_width*y + x/8; 2512 if (bank != pos/banksize) { 2513 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2514 bank = pos/banksize; 2515 } 2516 offset = pos%banksize; 2517 bx = (x + cx)/8 - x/8; 2518 if (x % 8) { 2519 outw(GDCIDX, ((0xff00 >> (x % 8)) & 0xff00) | 0x08); 2520 writeb(adp->va_window + offset, 0); 2521 ++offset; 2522 --bx; 2523 if (offset >= banksize) { 2524 offset = 0; 2525 ++bank; /* next bank */ 2526 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2527 } 2528 outw(GDCIDX, 0xff08); /* bit mask */ 2529 } 2530 while (bx > 0) { 2531 l = imin(bx, banksize); 2532 bzero_io(adp->va_window + offset, l); 2533 offset += l; 2534 bx -= l; 2535 if (offset >= banksize) { 2536 offset = 0; 2537 ++bank; /* next bank */ 2538 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2539 } 2540 } 2541 if ((x + cx) % 8) { 2542 outw(GDCIDX, (~(0xff00 >> ((x + cx) % 8)) & 0xff00) | 0x08); 2543 writeb(adp->va_window + offset, 0); 2544 ++offset; 2545 if (offset >= banksize) { 2546 offset = 0; 2547 ++bank; /* next bank */ 2548 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2549 } 2550 outw(GDCIDX, 0xff08); /* bit mask */ 2551 } 2552 ++y; 2553 --cy; 2554 } 2555 2556 outw(GDCIDX, 0xff08); /* bit mask */ 2557 outw(GDCIDX, 0x0000); /* set/reset */ 2558 outw(GDCIDX, 0x0001); /* set/reset enable */ 2559 } 2560 2561 static void 2562 packed_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2563 { 2564 int banksize; 2565 int bank; 2566 int pos; 2567 int offset; /* offset within window */ 2568 int end; 2569 2570 banksize = adp->va_window_size; 2571 bank = -1; 2572 cx *= adp->va_info.vi_pixel_size; 2573 while (cy > 0) { 2574 pos = adp->va_line_width*y + x*adp->va_info.vi_pixel_size; 2575 if (bank != pos/banksize) { 2576 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2577 bank = pos/banksize; 2578 } 2579 offset = pos%banksize; 2580 end = imin(offset + cx, banksize); 2581 fill_io(val, adp->va_window + offset, 2582 (end - offset)/adp->va_info.vi_pixel_size); 2583 /* the line may cross the window boundary */ 2584 if (offset + cx > banksize) { 2585 ++bank; /* next bank */ 2586 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2587 end = offset + cx - banksize; 2588 fill_io(val, adp->va_window, end/adp->va_info.vi_pixel_size); 2589 } 2590 ++y; 2591 --cy; 2592 } 2593 } 2594 2595 static void 2596 direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2597 { 2598 int banksize; 2599 int bank; 2600 int pos; 2601 int offset; /* offset within window */ 2602 int end; 2603 2604 /* 2605 * XXX: the function assumes that banksize is a muliple of 2606 * sizeof(u_int16_t). 2607 */ 2608 banksize = adp->va_window_size; 2609 bank = -1; 2610 cx *= sizeof(u_int16_t); 2611 while (cy > 0) { 2612 pos = adp->va_line_width*y + x*sizeof(u_int16_t); 2613 if (bank != pos/banksize) { 2614 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2615 bank = pos/banksize; 2616 } 2617 offset = pos%banksize; 2618 end = imin(offset + cx, banksize); 2619 fillw_io(val, adp->va_window + offset, 2620 (end - offset)/sizeof(u_int16_t)); 2621 /* the line may cross the window boundary */ 2622 if (offset + cx > banksize) { 2623 ++bank; /* next bank */ 2624 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2625 end = offset + cx - banksize; 2626 fillw_io(val, adp->va_window, end/sizeof(u_int16_t)); 2627 } 2628 ++y; 2629 --cy; 2630 } 2631 } 2632 2633 static void 2634 direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2635 { 2636 int banksize; 2637 int bank; 2638 int pos; 2639 int offset; /* offset within window */ 2640 int end; 2641 int i; 2642 int j; 2643 u_int8_t b[3]; 2644 2645 b[0] = val & 0x0000ff; 2646 b[1] = (val >> 8) & 0x0000ff; 2647 b[2] = (val >> 16) & 0x0000ff; 2648 banksize = adp->va_window_size; 2649 bank = -1; 2650 cx *= 3; 2651 while (cy > 0) { 2652 pos = adp->va_line_width*y + x*3; 2653 if (bank != pos/banksize) { 2654 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2655 bank = pos/banksize; 2656 } 2657 offset = pos%banksize; 2658 end = imin(offset + cx, banksize); 2659 for (i = 0, j = offset; j < end; i = (++i)%3, ++j) { 2660 writeb(adp->va_window + j, b[i]); 2661 } 2662 /* the line may cross the window boundary */ 2663 if (offset + cx >= banksize) { 2664 ++bank; /* next bank */ 2665 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2666 j = 0; 2667 end = offset + cx - banksize; 2668 for (; j < end; i = (++i)%3, ++j) { 2669 writeb(adp->va_window + j, b[i]); 2670 } 2671 } 2672 ++y; 2673 --cy; 2674 } 2675 } 2676 2677 static void 2678 direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2679 { 2680 int banksize; 2681 int bank; 2682 int pos; 2683 int offset; /* offset within window */ 2684 int end; 2685 2686 /* 2687 * XXX: the function assumes that banksize is a muliple of 2688 * sizeof(u_int32_t). 2689 */ 2690 banksize = adp->va_window_size; 2691 bank = -1; 2692 cx *= sizeof(u_int32_t); 2693 while (cy > 0) { 2694 pos = adp->va_line_width*y + x*sizeof(u_int32_t); 2695 if (bank != pos/banksize) { 2696 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2697 bank = pos/banksize; 2698 } 2699 offset = pos%banksize; 2700 end = imin(offset + cx, banksize); 2701 filll_io(val, adp->va_window + offset, 2702 (end - offset)/sizeof(u_int32_t)); 2703 /* the line may cross the window boundary */ 2704 if (offset + cx > banksize) { 2705 ++bank; /* next bank */ 2706 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2707 end = offset + cx - banksize; 2708 filll_io(val, adp->va_window, end/sizeof(u_int32_t)); 2709 } 2710 ++y; 2711 --cy; 2712 } 2713 } 2714 2715 static int 2716 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2717 { 2718 switch (adp->va_info.vi_mem_model) { 2719 case V_INFO_MM_TEXT: 2720 /* do nothing? XXX */ 2721 break; 2722 case V_INFO_MM_PLANAR: 2723 planar_fill_rect(adp, val, x, y, cx, cy); 2724 break; 2725 case V_INFO_MM_PACKED: 2726 packed_fill_rect(adp, val, x, y, cx, cy); 2727 break; 2728 case V_INFO_MM_DIRECT: 2729 switch (adp->va_info.vi_pixel_size) { 2730 case sizeof(u_int16_t): 2731 direct_fill_rect16(adp, val, x, y, cx, cy); 2732 break; 2733 case 3: 2734 direct_fill_rect24(adp, val, x, y, cx, cy); 2735 break; 2736 case sizeof(u_int32_t): 2737 direct_fill_rect32(adp, val, x, y, cx, cy); 2738 break; 2739 } 2740 break; 2741 } 2742 return 0; 2743 } 2744 #else /* !notyet */ 2745 static int 2746 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2747 { 2748 return ENODEV; 2749 } 2750 #endif /* notyet */ 2751 2752 static int 2753 vga_bitblt(video_adapter_t *adp,...) 2754 { 2755 /* FIXME */ 2756 return ENODEV; 2757 } 2758 2759 #endif /* !VGA_NO_MODE_CHANGE */ 2760 2761 static int 2762 get_palette(video_adapter_t *adp, int base, int count, 2763 u_char *red, u_char *green, u_char *blue, u_char *trans) 2764 { 2765 u_char *r; 2766 u_char *g; 2767 u_char *b; 2768 2769 if (count < 0 || base < 0 || count > 256 || base > 256 || 2770 base + count > 256) 2771 return EINVAL; 2772 2773 r = kmalloc(count*3, M_DEVBUF, M_WAITOK); 2774 g = r + count; 2775 b = g + count; 2776 if (vga_save_palette2(adp, base, count, r, g, b)) { 2777 kfree(r, M_DEVBUF); 2778 return ENODEV; 2779 } 2780 copyout(r, red, count); 2781 copyout(g, green, count); 2782 copyout(b, blue, count); 2783 if (trans != NULL) { 2784 bzero(r, count); 2785 copyout(r, trans, count); 2786 } 2787 kfree(r, M_DEVBUF); 2788 2789 return 0; 2790 } 2791 2792 static int 2793 set_palette(video_adapter_t *adp, int base, int count, 2794 u_char *red, u_char *green, u_char *blue, u_char *trans) 2795 { 2796 u_char *r; 2797 u_char *g; 2798 u_char *b; 2799 int err; 2800 2801 if (count < 0 || base < 0 || count > 256 || base > 256 || 2802 base + count > 256) 2803 return EINVAL; 2804 2805 r = kmalloc(count*3, M_DEVBUF, M_WAITOK); 2806 g = r + count; 2807 b = g + count; 2808 err = copyin(red, r, count); 2809 if (!err) 2810 err = copyin(green, g, count); 2811 if (!err) 2812 err = copyin(blue, b, count); 2813 if (!err) 2814 err = vga_load_palette2(adp, base, count, r, g, b); 2815 kfree(r, M_DEVBUF); 2816 2817 return (err ? ENODEV : 0); 2818 } 2819 2820 static int 2821 vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 2822 { 2823 switch (cmd) { 2824 case FBIO_GETWINORG: /* get frame buffer window origin */ 2825 *(u_int *)arg = 0; 2826 return 0; 2827 2828 case FBIO_SETWINORG: /* set frame buffer window origin */ 2829 return ENODEV; 2830 2831 case FBIO_SETDISPSTART: /* set display start address */ 2832 return (set_display_start(adp, 2833 ((video_display_start_t *)arg)->x, 2834 ((video_display_start_t *)arg)->y) 2835 ? ENODEV : 0); 2836 2837 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */ 2838 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0); 2839 2840 case FBIO_GETPALETTE: /* get color palette */ 2841 return get_palette(adp, ((video_color_palette_t *)arg)->index, 2842 ((video_color_palette_t *)arg)->count, 2843 ((video_color_palette_t *)arg)->red, 2844 ((video_color_palette_t *)arg)->green, 2845 ((video_color_palette_t *)arg)->blue, 2846 ((video_color_palette_t *)arg)->transparent); 2847 2848 case FBIO_SETPALETTE: /* set color palette */ 2849 return set_palette(adp, ((video_color_palette_t *)arg)->index, 2850 ((video_color_palette_t *)arg)->count, 2851 ((video_color_palette_t *)arg)->red, 2852 ((video_color_palette_t *)arg)->green, 2853 ((video_color_palette_t *)arg)->blue, 2854 ((video_color_palette_t *)arg)->transparent); 2855 2856 case FBIOGTYPE: /* get frame buffer type info. */ 2857 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type); 2858 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height; 2859 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width; 2860 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth; 2861 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8)) 2862 ((struct fbtype *)arg)->fb_cmsize = 0; 2863 else 2864 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth; 2865 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size; 2866 return 0; 2867 2868 case FBIOGETCMAP: /* get color palette */ 2869 return get_palette(adp, ((struct fbcmap *)arg)->index, 2870 ((struct fbcmap *)arg)->count, 2871 ((struct fbcmap *)arg)->red, 2872 ((struct fbcmap *)arg)->green, 2873 ((struct fbcmap *)arg)->blue, NULL); 2874 2875 case FBIOPUTCMAP: /* set color palette */ 2876 return set_palette(adp, ((struct fbcmap *)arg)->index, 2877 ((struct fbcmap *)arg)->count, 2878 ((struct fbcmap *)arg)->red, 2879 ((struct fbcmap *)arg)->green, 2880 ((struct fbcmap *)arg)->blue, NULL); 2881 2882 default: 2883 return fb_commonioctl(adp, cmd, arg); 2884 } 2885 } 2886 2887 static void 2888 dump_buffer(u_char *buf, size_t len) 2889 { 2890 int i; 2891 2892 for(i = 0; i < len;) { 2893 kprintf("%02x ", buf[i]); 2894 if ((++i % 16) == 0) 2895 kprintf("\n"); 2896 } 2897 } 2898 2899 /* 2900 * diag(): 2901 * Print some information about the video adapter and video modes, 2902 * with requested level of details. 2903 * 2904 * all adapters 2905 */ 2906 static int 2907 vga_diag(video_adapter_t *adp, int level) 2908 { 2909 u_char *mp; 2910 #if FB_DEBUG > 1 2911 video_info_t info; 2912 int i; 2913 #endif 2914 2915 if (!vga_init_done) 2916 return ENXIO; 2917 2918 #if FB_DEBUG > 1 2919 #ifndef VGA_NO_BIOS 2920 kprintf("vga: RTC equip. code:0x%02x, DCC code:0x%02x\n", 2921 rtcin(RTC_EQUIPMENT), readb(BIOS_PADDRTOVADDR(0x488))); 2922 kprintf("vga: CRTC:0x%x, video option:0x%02x, ", 2923 readw(BIOS_PADDRTOVADDR(0x463)), 2924 readb(BIOS_PADDRTOVADDR(0x487))); 2925 kprintf("rows:%d, cols:%d, font height:%d\n", 2926 readb(BIOS_PADDRTOVADDR(0x44a)), 2927 readb(BIOS_PADDRTOVADDR(0x484)) + 1, 2928 readb(BIOS_PADDRTOVADDR(0x485))); 2929 #endif /* VGA_NO_BIOS */ 2930 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 2931 kprintf("vga: param table EGA/VGA:%p", video_mode_ptr); 2932 kprintf(", CGA/MDA:%p\n", video_mode_ptr2); 2933 kprintf("vga: rows_offset:%d\n", rows_offset); 2934 #endif 2935 #endif /* FB_DEBUG > 1 */ 2936 2937 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level); 2938 2939 #if FB_DEBUG > 1 2940 if (adp->va_flags & V_ADP_MODECHANGE) { 2941 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 2942 if (bios_vmode[i].vi_mode == NA) 2943 continue; 2944 if (get_mode_param(bios_vmode[i].vi_mode) == NULL) 2945 continue; 2946 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level); 2947 } 2948 } else { 2949 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */ 2950 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level); 2951 } 2952 #endif /* FB_DEBUG > 1 */ 2953 2954 if ((adp->va_type != KD_EGA) && (adp->va_type != KD_VGA)) 2955 return 0; 2956 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 2957 if (video_mode_ptr == NULL) 2958 kprintf("vga%d: %s: WARNING: video mode switching is not " 2959 "fully supported on this adapter\n", 2960 adp->va_unit, adp->va_name); 2961 #endif 2962 if (level <= 0) 2963 return 0; 2964 2965 if (adp->va_type == KD_VGA) { 2966 kprintf("VGA parameters upon power-up\n"); 2967 dump_buffer(adpstate.regs, sizeof(adpstate.regs)); 2968 kprintf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode); 2969 dump_buffer(adpstate2.regs, sizeof(adpstate2.regs)); 2970 } 2971 2972 mp = get_mode_param(adp->va_initial_mode); 2973 if (mp == NULL) /* this shouldn't be happening */ 2974 return 0; 2975 kprintf("EGA/VGA parameters to be used for mode %d\n", adp->va_initial_mode); 2976 dump_buffer(mp, V_MODE_PARAM_SIZE); 2977 2978 return 0; 2979 } 2980