1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 5 * Copyright (c) 1992-1998 Søren Schmidt 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer as 13 * the first lines of this file unmodified. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 */ 32 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 36 #include "opt_vga.h" 37 #include "opt_fb.h" 38 #ifndef FB_DEBUG 39 #define FB_DEBUG 0 40 #endif 41 #include "opt_syscons.h" /* should be removed in the future, XXX */ 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/kernel.h> 46 #include <sys/conf.h> 47 #include <sys/fcntl.h> 48 #include <sys/malloc.h> 49 #include <sys/fbio.h> 50 51 #include <vm/vm.h> 52 #include <vm/vm_param.h> 53 #include <vm/pmap.h> 54 55 #include <machine/md_var.h> 56 #if defined(__i386__) || defined(__amd64__) 57 #include <machine/pc/bios.h> 58 #endif 59 #include <machine/bus.h> 60 61 #include <dev/fb/fbreg.h> 62 #include <dev/fb/vgareg.h> 63 64 #include <isa/isareg.h> 65 66 #ifndef VGA_DEBUG 67 #define VGA_DEBUG 0 68 #endif 69 70 /* XXX machine/pc/bios.h has got too much i386-specific stuff in it */ 71 #ifndef BIOS_PADDRTOVADDR 72 #define BIOS_PADDRTOVADDR(x) (x) 73 #endif 74 75 int 76 vga_probe_unit(int unit, video_adapter_t *buf, int flags) 77 { 78 video_adapter_t *adp; 79 video_switch_t *sw; 80 int error; 81 82 sw = vid_get_switch(VGA_DRIVER_NAME); 83 if (sw == NULL) 84 return 0; 85 error = (*sw->probe)(unit, &adp, NULL, flags); 86 if (error) 87 return error; 88 bcopy(adp, buf, sizeof(*buf)); 89 return 0; 90 } 91 92 int 93 vga_attach_unit(int unit, vga_softc_t *sc, int flags) 94 { 95 video_switch_t *sw; 96 int error; 97 98 sw = vid_get_switch(VGA_DRIVER_NAME); 99 if (sw == NULL) 100 return ENXIO; 101 102 error = (*sw->probe)(unit, &sc->adp, NULL, flags); 103 if (error) 104 return error; 105 return (*sw->init)(unit, sc->adp, flags); 106 } 107 108 /* cdev driver functions */ 109 110 #ifdef FB_INSTALL_CDEV 111 112 int 113 vga_open(struct cdev *dev, vga_softc_t *sc, int flag, int mode, struct thread *td) 114 { 115 if (sc == NULL) 116 return ENXIO; 117 if (mode & (O_CREAT | O_APPEND | O_TRUNC)) 118 return ENODEV; 119 120 return genfbopen(&sc->gensc, sc->adp, flag, mode, td); 121 } 122 123 int 124 vga_close(struct cdev *dev, vga_softc_t *sc, int flag, int mode, struct thread *td) 125 { 126 return genfbclose(&sc->gensc, sc->adp, flag, mode, td); 127 } 128 129 int 130 vga_read(struct cdev *dev, vga_softc_t *sc, struct uio *uio, int flag) 131 { 132 return genfbread(&sc->gensc, sc->adp, uio, flag); 133 } 134 135 int 136 vga_write(struct cdev *dev, vga_softc_t *sc, struct uio *uio, int flag) 137 { 138 return genfbread(&sc->gensc, sc->adp, uio, flag); 139 } 140 141 int 142 vga_ioctl(struct cdev *dev, vga_softc_t *sc, u_long cmd, caddr_t arg, int flag, 143 struct thread *td) 144 { 145 return genfbioctl(&sc->gensc, sc->adp, cmd, arg, flag, td); 146 } 147 148 int 149 vga_mmap(struct cdev *dev, vga_softc_t *sc, vm_ooffset_t offset, 150 vm_paddr_t *paddr, int prot, vm_memattr_t *memattr) 151 { 152 return genfbmmap(&sc->gensc, sc->adp, offset, paddr, prot, memattr); 153 } 154 155 #endif /* FB_INSTALL_CDEV */ 156 157 /* LOW-LEVEL */ 158 159 #include <isa/rtc.h> 160 #ifdef __i386__ 161 #include <dev/fb/vesa.h> 162 #endif 163 164 #define probe_done(adp) ((adp)->va_flags & V_ADP_PROBED) 165 #define init_done(adp) ((adp)->va_flags & V_ADP_INITIALIZED) 166 #define config_done(adp) ((adp)->va_flags & V_ADP_REGISTERED) 167 168 /* for compatibility with old kernel options */ 169 #ifdef SC_ALT_SEQACCESS 170 #undef SC_ALT_SEQACCESS 171 #undef VGA_ALT_SEQACCESS 172 #define VGA_ALT_SEQACCESS 1 173 #endif 174 175 #ifdef SLOW_VGA 176 #undef SLOW_VGA 177 #undef VGA_SLOW_IOACCESS 178 #define VGA_SLOW_IOACCESS 179 #endif 180 181 /* architecture dependent option */ 182 #if !defined(__i386__) && !defined(__amd64__) 183 #define VGA_NO_BIOS 1 184 #endif 185 186 /* this should really be in `rtc.h' */ 187 #define RTC_EQUIPMENT 0x14 188 189 /* various sizes */ 190 #define V_MODE_MAP_SIZE (M_VGA_CG320 + 1) 191 #define V_MODE_PARAM_SIZE 64 192 193 /* video adapter state buffer */ 194 struct adp_state { 195 int sig; 196 #define V_STATE_SIG 0x736f6962 197 u_char regs[V_MODE_PARAM_SIZE]; 198 }; 199 typedef struct adp_state adp_state_t; 200 201 /* video adapter information */ 202 #define DCC_MONO 0 203 #define DCC_CGA40 1 204 #define DCC_CGA80 2 205 #define DCC_EGAMONO 3 206 #define DCC_EGA40 4 207 #define DCC_EGA80 5 208 209 /* 210 * NOTE: `va_window' should have a virtual address, but is initialized 211 * with a physical address in the following table, as verify_adapter() 212 * will perform address conversion at run-time. 213 */ 214 static video_adapter_t adapter_init_value[] = { 215 /* DCC_MONO */ 216 { 0, KD_MONO, "mda", 0, 0, 0, IO_MDA, IO_MDASIZE, MONO_CRTC, 217 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 218 0, 0, 0, 0, 7, 0, }, 219 /* DCC_CGA40 */ 220 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 221 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 222 0, 0, 0, 0, 3, 0, }, 223 /* DCC_CGA80 */ 224 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 225 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 226 0, 0, 0, 0, 3, 0, }, 227 /* DCC_EGAMONO */ 228 { 0, KD_EGA, "ega", 0, 0, 0, IO_MDA, 48, MONO_CRTC, 229 EGA_BUF_BASE, EGA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 230 0, 0, 0, 0, 7, 0, }, 231 /* DCC_EGA40 */ 232 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 233 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 234 0, 0, 0, 0, 3, 0, }, 235 /* DCC_EGA80 */ 236 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 237 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 238 0, 0, 0, 0, 3, 0, }, 239 }; 240 241 static video_adapter_t biosadapter[2]; 242 static int biosadapters = 0; 243 244 /* video driver declarations */ 245 static int vga_configure(int flags); 246 int (*vga_sub_configure)(int flags); 247 #if 0 248 static int vga_nop(void); 249 #endif 250 static int vga_error(void); 251 static vi_probe_t vga_probe; 252 static vi_init_t vga_init; 253 static vi_get_info_t vga_get_info; 254 static vi_query_mode_t vga_query_mode; 255 static vi_set_mode_t vga_set_mode; 256 static vi_save_font_t vga_save_font; 257 static vi_load_font_t vga_load_font; 258 static vi_show_font_t vga_show_font; 259 static vi_save_palette_t vga_save_palette; 260 static vi_load_palette_t vga_load_palette; 261 static vi_set_border_t vga_set_border; 262 static vi_save_state_t vga_save_state; 263 static vi_load_state_t vga_load_state; 264 static vi_set_win_org_t vga_set_origin; 265 static vi_read_hw_cursor_t vga_read_hw_cursor; 266 static vi_set_hw_cursor_t vga_set_hw_cursor; 267 static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape; 268 static vi_blank_display_t vga_blank_display; 269 static vi_mmap_t vga_mmap_buf; 270 static vi_ioctl_t vga_dev_ioctl; 271 #ifndef VGA_NO_MODE_CHANGE 272 static vi_clear_t vga_clear; 273 static vi_fill_rect_t vga_fill_rect; 274 static vi_bitblt_t vga_bitblt; 275 #else /* VGA_NO_MODE_CHANGE */ 276 #define vga_clear (vi_clear_t *)vga_error 277 #define vga_fill_rect (vi_fill_rect_t *)vga_error 278 #define vga_bitblt (vi_bitblt_t *)vga_error 279 #endif 280 static vi_diag_t vga_diag; 281 282 static video_switch_t vgavidsw = { 283 vga_probe, 284 vga_init, 285 vga_get_info, 286 vga_query_mode, 287 vga_set_mode, 288 vga_save_font, 289 vga_load_font, 290 vga_show_font, 291 vga_save_palette, 292 vga_load_palette, 293 vga_set_border, 294 vga_save_state, 295 vga_load_state, 296 vga_set_origin, 297 vga_read_hw_cursor, 298 vga_set_hw_cursor, 299 vga_set_hw_cursor_shape, 300 vga_blank_display, 301 vga_mmap_buf, 302 vga_dev_ioctl, 303 vga_clear, 304 vga_fill_rect, 305 vga_bitblt, 306 vga_error, 307 vga_error, 308 vga_diag, 309 }; 310 311 VIDEO_DRIVER(mda, vgavidsw, NULL); 312 VIDEO_DRIVER(cga, vgavidsw, NULL); 313 VIDEO_DRIVER(ega, vgavidsw, NULL); 314 VIDEO_DRIVER(vga, vgavidsw, vga_configure); 315 316 /* VGA BIOS standard video modes */ 317 #define EOT (-1) 318 #define NA (-2) 319 320 static video_info_t bios_vmode[] = { 321 /* CGA */ 322 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1, 323 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 324 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1, 325 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 326 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1, 327 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 328 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1, 329 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 330 /* EGA */ 331 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1, 332 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 333 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1, 334 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 335 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1, 336 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 337 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1, 338 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 339 /* VGA */ 340 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1, 341 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 342 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1, 343 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 344 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1, 345 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 346 /* MDA */ 347 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1, 348 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 349 /* EGA */ 350 { M_ENH_B80x43, V_INFO_COLOR, 80, 43, 8, 8, 2, 1, 351 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 352 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1, 353 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 354 /* VGA */ 355 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1, 356 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 357 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1, 358 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 359 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1, 360 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 361 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1, 362 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 363 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1, 364 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 365 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1, 366 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 367 368 #ifndef VGA_NO_MODE_CHANGE 369 370 #ifdef VGA_WIDTH90 371 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1, 372 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 373 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1, 374 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 375 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1, 376 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 377 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1, 378 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 379 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1, 380 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 381 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1, 382 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 383 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1, 384 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 385 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1, 386 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 387 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1, 388 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 389 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1, 390 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 391 #endif /* VGA_WIDTH90 */ 392 393 /* CGA */ 394 { M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 395 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 396 { M_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 397 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 398 { M_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1, 399 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 400 /* EGA */ 401 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4, 402 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 403 V_INFO_MM_PLANAR }, 404 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4, 405 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 406 V_INFO_MM_PLANAR }, 407 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 408 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 , 409 V_INFO_MM_PLANAR }, 410 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 411 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 412 V_INFO_MM_PLANAR }, 413 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2, 414 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 415 V_INFO_MM_PLANAR }, 416 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 417 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 418 V_INFO_MM_PLANAR }, 419 /* VGA */ 420 { M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 421 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 422 V_INFO_MM_PLANAR }, 423 { M_CG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 424 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 425 V_INFO_MM_PLANAR }, 426 { M_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1, 427 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 428 V_INFO_MM_PACKED, 1 }, 429 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 4, 430 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 431 V_INFO_MM_VGAX, 1 }, 432 #endif /* VGA_NO_MODE_CHANGE */ 433 434 { EOT }, 435 }; 436 437 static int vga_init_done = FALSE; 438 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 439 static u_char *video_mode_ptr = NULL; /* EGA/VGA */ 440 static u_char *video_mode_ptr2 = NULL; /* CGA/MDA */ 441 #endif 442 static u_char *mode_map[V_MODE_MAP_SIZE]; 443 static adp_state_t adpstate; 444 static adp_state_t adpstate2; 445 static int rows_offset = 1; 446 447 /* local macros and functions */ 448 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 449 450 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 451 static void map_mode_table(u_char *map[], u_char *table, int max); 452 #endif 453 static void clear_mode_map(video_adapter_t *adp, u_char *map[], int max, 454 int color); 455 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 456 static int map_mode_num(int mode); 457 #endif 458 static int map_gen_mode_num(int type, int color, int mode); 459 static int map_bios_mode_num(int type, int color, int bios_mode); 460 static u_char *get_mode_param(int mode); 461 #ifndef VGA_NO_BIOS 462 static void fill_adapter_param(int code, video_adapter_t *adp); 463 #endif 464 static int verify_adapter(video_adapter_t *adp); 465 static void update_adapter_info(video_adapter_t *adp, video_info_t *info); 466 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 467 #define COMP_IDENTICAL 0 468 #define COMP_SIMILAR 1 469 #define COMP_DIFFERENT 2 470 static int comp_adpregs(u_char *buf1, u_char *buf2); 471 #endif 472 static int probe_adapters(void); 473 static int set_line_length(video_adapter_t *adp, int pixel); 474 static int set_display_start(video_adapter_t *adp, int x, int y); 475 476 #ifndef VGA_NO_MODE_CHANGE 477 #ifdef VGA_WIDTH90 478 static void set_width90(adp_state_t *params); 479 #endif 480 #endif /* !VGA_NO_MODE_CHANGE */ 481 482 #ifndef VGA_NO_FONT_LOADING 483 #define PARAM_BUFSIZE 6 484 static void set_font_mode(video_adapter_t *adp, u_char *buf); 485 static void set_normal_mode(video_adapter_t *adp, u_char *buf); 486 #endif 487 488 #ifndef VGA_NO_MODE_CHANGE 489 static void filll_io(int val, vm_offset_t d, size_t size); 490 static void planar_fill(video_adapter_t *adp, int val); 491 static void packed_fill(video_adapter_t *adp, int val); 492 static void direct_fill(video_adapter_t *adp, int val); 493 #ifdef notyet 494 static void planar_fill_rect(video_adapter_t *adp, int val, int x, int y, 495 int cx, int cy); 496 static void packed_fill_rect(video_adapter_t *adp, int val, int x, int y, 497 int cx, int cy); 498 static void direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, 499 int cx, int cy); 500 static void direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, 501 int cx, int cy); 502 static void direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, 503 int cx, int cy); 504 #endif /* notyet */ 505 #endif /* !VGA_NO_MODE_CHANGE */ 506 507 static void dump_buffer(u_char *buf, size_t len); 508 509 #define ISMAPPED(pa, width) \ 510 (((pa) <= (u_long)0x1000 - (width)) \ 511 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width))) 512 513 #define prologue(adp, flag, err) \ 514 if (!vga_init_done || !((adp)->va_flags & (flag))) \ 515 return (err) 516 517 /* a backdoor for the console driver */ 518 static int 519 vga_configure(int flags) 520 { 521 int i; 522 523 probe_adapters(); 524 for (i = 0; i < biosadapters; ++i) { 525 if (!probe_done(&biosadapter[i])) 526 continue; 527 biosadapter[i].va_flags |= V_ADP_INITIALIZED; 528 if (!config_done(&biosadapter[i])) { 529 if (vid_register(&biosadapter[i]) < 0) 530 continue; 531 biosadapter[i].va_flags |= V_ADP_REGISTERED; 532 } 533 } 534 if (vga_sub_configure != NULL) 535 (*vga_sub_configure)(flags); 536 537 return biosadapters; 538 } 539 540 /* local subroutines */ 541 542 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 543 /* construct the mode parameter map */ 544 static void 545 map_mode_table(u_char *map[], u_char *table, int max) 546 { 547 int i; 548 549 for(i = 0; i < max; ++i) 550 map[i] = table + i*V_MODE_PARAM_SIZE; 551 for(; i < V_MODE_MAP_SIZE; ++i) 552 map[i] = NULL; 553 } 554 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 555 556 static void 557 clear_mode_map(video_adapter_t *adp, u_char *map[], int max, int color) 558 { 559 video_info_t info; 560 int i; 561 562 /* 563 * NOTE: we don't touch `bios_vmode[]' because it is shared 564 * by all adapters. 565 */ 566 for(i = 0; i < max; ++i) { 567 if (vga_get_info(adp, i, &info)) 568 continue; 569 if ((info.vi_flags & V_INFO_COLOR) != color) 570 map[i] = NULL; 571 } 572 } 573 574 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 575 /* map the non-standard video mode to a known mode number */ 576 static int 577 map_mode_num(int mode) 578 { 579 static struct { 580 int from; 581 int to; 582 } mode_map[] = { 583 { M_ENH_B80x43, M_ENH_B80x25 }, 584 { M_ENH_C80x43, M_ENH_C80x25 }, 585 { M_VGA_M80x30, M_VGA_M80x25 }, 586 { M_VGA_C80x30, M_VGA_C80x25 }, 587 { M_VGA_M80x50, M_VGA_M80x25 }, 588 { M_VGA_C80x50, M_VGA_C80x25 }, 589 { M_VGA_M80x60, M_VGA_M80x25 }, 590 { M_VGA_C80x60, M_VGA_C80x25 }, 591 #ifdef VGA_WIDTH90 592 { M_VGA_M90x25, M_VGA_M80x25 }, 593 { M_VGA_C90x25, M_VGA_C80x25 }, 594 { M_VGA_M90x30, M_VGA_M80x25 }, 595 { M_VGA_C90x30, M_VGA_C80x25 }, 596 { M_VGA_M90x43, M_VGA_M80x25 }, 597 { M_VGA_C90x43, M_ENH_C80x25 }, 598 { M_VGA_M90x50, M_VGA_M80x25 }, 599 { M_VGA_C90x50, M_VGA_C80x25 }, 600 { M_VGA_M90x60, M_VGA_M80x25 }, 601 { M_VGA_C90x60, M_VGA_C80x25 }, 602 #endif 603 { M_VGA_MODEX, M_VGA_CG320 }, 604 }; 605 int i; 606 607 for (i = 0; i < nitems(mode_map); ++i) { 608 if (mode_map[i].from == mode) 609 return mode_map[i].to; 610 } 611 return mode; 612 } 613 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 614 615 /* map a generic video mode to a known mode number */ 616 static int 617 map_gen_mode_num(int type, int color, int mode) 618 { 619 static struct { 620 int from; 621 int to_color; 622 int to_mono; 623 } mode_map[] = { 624 { M_TEXT_80x30, M_VGA_C80x30, M_VGA_M80x30, }, 625 { M_TEXT_80x43, M_ENH_C80x43, M_ENH_B80x43, }, 626 { M_TEXT_80x50, M_VGA_C80x50, M_VGA_M80x50, }, 627 { M_TEXT_80x60, M_VGA_C80x60, M_VGA_M80x60, }, 628 }; 629 int i; 630 631 if (mode == M_TEXT_80x25) { 632 switch (type) { 633 634 case KD_VGA: 635 if (color) 636 return M_VGA_C80x25; 637 else 638 return M_VGA_M80x25; 639 break; 640 641 case KD_EGA: 642 if (color) 643 return M_ENH_C80x25; 644 else 645 return M_EGAMONO80x25; 646 break; 647 648 case KD_CGA: 649 return M_C80x25; 650 651 case KD_MONO: 652 case KD_HERCULES: 653 return M_EGAMONO80x25; /* XXX: this name is confusing */ 654 655 default: 656 return -1; 657 } 658 } 659 660 for (i = 0; i < nitems(mode_map); ++i) { 661 if (mode_map[i].from == mode) 662 return ((color) ? mode_map[i].to_color : mode_map[i].to_mono); 663 } 664 return mode; 665 } 666 667 /* turn the BIOS video number into our video mode number */ 668 static int 669 map_bios_mode_num(int type, int color, int bios_mode) 670 { 671 static int cga_modes[7] = { 672 M_B40x25, M_C40x25, /* 0, 1 */ 673 M_B80x25, M_C80x25, /* 2, 3 */ 674 M_BG320, M_CG320, 675 M_BG640, 676 }; 677 static int ega_modes[17] = { 678 M_ENH_B40x25, M_ENH_C40x25, /* 0, 1 */ 679 M_ENH_B80x25, M_ENH_C80x25, /* 2, 3 */ 680 M_BG320, M_CG320, 681 M_BG640, 682 M_EGAMONO80x25, /* 7 */ 683 8, 9, 10, 11, 12, 684 M_CG320_D, 685 M_CG640_E, 686 M_ENHMONOAPA2, /* XXX: video momery > 64K */ 687 M_ENH_CG640, /* XXX: video momery > 64K */ 688 }; 689 static int vga_modes[20] = { 690 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */ 691 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */ 692 M_BG320, M_CG320, 693 M_BG640, 694 M_VGA_M80x25, /* 7 */ 695 8, 9, 10, 11, 12, 696 M_CG320_D, 697 M_CG640_E, 698 M_ENHMONOAPA2, 699 M_ENH_CG640, 700 M_BG640x480, M_CG640x480, 701 M_VGA_CG320, 702 }; 703 704 switch (type) { 705 706 case KD_VGA: 707 if (bios_mode < nitems(vga_modes)) 708 return vga_modes[bios_mode]; 709 else if (color) 710 return M_VGA_C80x25; 711 else 712 return M_VGA_M80x25; 713 break; 714 715 case KD_EGA: 716 if (bios_mode < nitems(ega_modes)) 717 return ega_modes[bios_mode]; 718 else if (color) 719 return M_ENH_C80x25; 720 else 721 return M_EGAMONO80x25; 722 break; 723 724 case KD_CGA: 725 if (bios_mode < nitems(cga_modes)) 726 return cga_modes[bios_mode]; 727 else 728 return M_C80x25; 729 break; 730 731 case KD_MONO: 732 case KD_HERCULES: 733 return M_EGAMONO80x25; /* XXX: this name is confusing */ 734 735 default: 736 break; 737 } 738 return -1; 739 } 740 741 /* look up a parameter table entry */ 742 static u_char 743 *get_mode_param(int mode) 744 { 745 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 746 if (mode >= V_MODE_MAP_SIZE) 747 mode = map_mode_num(mode); 748 #endif 749 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE)) 750 return mode_map[mode]; 751 else 752 return NULL; 753 } 754 755 #ifndef VGA_NO_BIOS 756 static void 757 fill_adapter_param(int code, video_adapter_t *adp) 758 { 759 static struct { 760 int primary; 761 int secondary; 762 } dcc[] = { 763 { DCC_MONO, DCC_EGA40 /* CGA monitor */ }, 764 { DCC_MONO, DCC_EGA80 /* CGA monitor */ }, 765 { DCC_MONO, DCC_EGA80 }, 766 { DCC_MONO, DCC_EGA80 }, 767 { DCC_CGA40, DCC_EGAMONO }, 768 { DCC_CGA80, DCC_EGAMONO }, 769 { DCC_EGA40 /* CGA monitor */, DCC_MONO}, 770 { DCC_EGA80 /* CGA monitor */, DCC_MONO}, 771 { DCC_EGA80, DCC_MONO }, 772 { DCC_EGA80, DCC_MONO }, 773 { DCC_EGAMONO, DCC_CGA40 }, 774 { DCC_EGAMONO, DCC_CGA80 }, 775 }; 776 777 if ((code < 0) || (code >= nitems(dcc))) { 778 adp[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 779 adp[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 780 } else { 781 adp[V_ADP_PRIMARY] = adapter_init_value[dcc[code].primary]; 782 adp[V_ADP_SECONDARY] = adapter_init_value[dcc[code].secondary]; 783 } 784 } 785 #endif /* VGA_NO_BIOS */ 786 787 static int 788 verify_adapter(video_adapter_t *adp) 789 { 790 vm_offset_t buf; 791 u_int16_t v; 792 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 793 u_int32_t p; 794 #endif 795 796 buf = BIOS_PADDRTOVADDR(adp->va_window); 797 v = readw(buf); 798 writew(buf, 0xA55A); 799 if (readw(buf) != 0xA55A) 800 return ENXIO; 801 writew(buf, v); 802 803 switch (adp->va_type) { 804 805 case KD_EGA: 806 outb(adp->va_crtc_addr, 7); 807 if (inb(adp->va_crtc_addr) == 7) { 808 adp->va_type = KD_VGA; 809 adp->va_name = "vga"; 810 adp->va_flags |= V_ADP_STATESAVE | V_ADP_PALETTE; 811 } 812 adp->va_flags |= V_ADP_STATELOAD | V_ADP_BORDER; 813 /* the color adapter may be in the 40x25 mode... XXX */ 814 815 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 816 /* get the BIOS video mode pointer */ 817 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8); 818 p = BIOS_SADDRTOLADDR(p); 819 if (ISMAPPED(p, sizeof(u_int32_t))) { 820 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p); 821 p = BIOS_SADDRTOLADDR(p); 822 if (ISMAPPED(p, V_MODE_PARAM_SIZE)) 823 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p); 824 } 825 #endif 826 break; 827 828 case KD_CGA: 829 adp->va_flags |= V_ADP_COLOR | V_ADP_BORDER; 830 /* may be in the 40x25 mode... XXX */ 831 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 832 /* get the BIOS video mode pointer */ 833 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 834 p = BIOS_SADDRTOLADDR(p); 835 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 836 #endif 837 break; 838 839 case KD_MONO: 840 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 841 /* get the BIOS video mode pointer */ 842 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 843 p = BIOS_SADDRTOLADDR(p); 844 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 845 #endif 846 break; 847 } 848 849 return 0; 850 } 851 852 static void 853 update_adapter_info(video_adapter_t *adp, video_info_t *info) 854 { 855 adp->va_flags &= ~V_ADP_COLOR; 856 adp->va_flags |= 857 (info->vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; 858 adp->va_crtc_addr = 859 (adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; 860 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window); 861 adp->va_window_size = info->vi_window_size; 862 adp->va_window_gran = info->vi_window_gran; 863 adp->va_window_orig = 0; 864 /* XXX */ 865 adp->va_buffer = info->vi_buffer; 866 adp->va_buffer_size = info->vi_buffer_size; 867 adp->va_flags &= ~V_ADP_CWIDTH9; 868 if (info->vi_flags & V_INFO_CWIDTH9) 869 adp->va_flags |= V_ADP_CWIDTH9; 870 if (info->vi_mem_model == V_INFO_MM_VGAX) { 871 adp->va_line_width = info->vi_width/2; 872 } else if (info->vi_flags & V_INFO_GRAPHICS) { 873 switch (info->vi_depth/info->vi_planes) { 874 case 1: 875 adp->va_line_width = info->vi_width/8; 876 break; 877 case 2: 878 adp->va_line_width = info->vi_width/4; 879 break; 880 case 4: 881 adp->va_line_width = info->vi_width/2; 882 break; 883 case 8: 884 default: /* shouldn't happen */ 885 adp->va_line_width = info->vi_width; 886 break; 887 } 888 } else { 889 adp->va_line_width = info->vi_width; 890 } 891 adp->va_disp_start.x = 0; 892 adp->va_disp_start.y = 0; 893 bcopy(info, &adp->va_info, sizeof(adp->va_info)); 894 } 895 896 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 897 /* compare two parameter table entries */ 898 static int 899 comp_adpregs(u_char *buf1, u_char *buf2) 900 { 901 static struct { 902 u_char mask; 903 } params[V_MODE_PARAM_SIZE] = { 904 {0xff}, {0x00}, {0xff}, /* COLS}, ROWS}, POINTS */ 905 {0x00}, {0x00}, /* page length */ 906 {0xfe}, {0xff}, {0xff}, {0xff}, /* sequencer registers */ 907 {0xf3}, /* misc register */ 908 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, /* CRTC */ 909 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, 910 {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, 911 {0x00}, {0xff}, {0x7f}, {0xff}, {0xff}, 912 {0x7f}, {0xff}, {0xff}, {0xef}, {0xff}, 913 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* attribute controller regs */ 914 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 915 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 916 {0xff}, {0xff}, {0xff}, {0xff}, {0xf0}, 917 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* GDC register */ 918 {0xff}, {0xff}, {0xff}, {0xff}, 919 }; 920 int identical = TRUE; 921 int i; 922 923 if ((buf1 == NULL) || (buf2 == NULL)) 924 return COMP_DIFFERENT; 925 926 for (i = 0; i < nitems(params); ++i) { 927 if (params[i].mask == 0) /* don't care */ 928 continue; 929 if ((buf1[i] & params[i].mask) != (buf2[i] & params[i].mask)) 930 return COMP_DIFFERENT; 931 if (buf1[i] != buf2[i]) 932 identical = FALSE; 933 } 934 return (identical) ? COMP_IDENTICAL : COMP_SIMILAR; 935 } 936 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 937 938 /* probe video adapters and return the number of detected adapters */ 939 static int 940 probe_adapters(void) 941 { 942 video_adapter_t *adp; 943 video_info_t info; 944 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 945 u_char *mp; 946 #endif 947 int height, i, width; 948 949 /* do this test only once */ 950 if (vga_init_done) 951 return biosadapters; 952 vga_init_done = TRUE; 953 954 /* 955 * Locate display adapters. 956 * The AT architecture supports up to two adapters. `syscons' allows 957 * the following combinations of adapters: 958 * 1) MDA + CGA 959 * 2) MDA + EGA/VGA color 960 * 3) CGA + EGA/VGA mono 961 * Note that `syscons' doesn't bother with MCGA as it is only 962 * avaiable for low end PS/2 models which has 80286 or earlier CPUs, 963 * thus, they are not running FreeBSD! 964 * When there are two adapaters in the system, one becomes `primary' 965 * and the other `secondary'. The EGA adapter has a set of DIP 966 * switches on board for this information and the EGA BIOS copies 967 * it in the BIOS data area BIOSDATA_VIDEOSWITCH (40:88). 968 * The VGA BIOS has more sophisticated mechanism and has this 969 * information in BIOSDATA_DCCINDEX (40:8a), but it also maintains 970 * compatibility with the EGA BIOS by updating BIOSDATA_VIDEOSWITCH. 971 */ 972 973 /* 974 * Check rtc and BIOS data area. 975 * XXX: we don't use BIOSDATA_EQUIPMENT, since it is not a dead 976 * copy of RTC_EQUIPMENT. Bits 4 and 5 of ETC_EQUIPMENT are 977 * zeros for EGA and VGA. However, the EGA/VGA BIOS sets 978 * these bits in BIOSDATA_EQUIPMENT according to the monitor 979 * type detected. 980 */ 981 #ifndef VGA_NO_BIOS 982 if (*(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8)) { 983 /* EGA/VGA BIOS is present */ 984 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 985 biosadapter); 986 } else { 987 switch ((rtcin(RTC_EQUIPMENT) >> 4) & 3) { /* bit 4 and 5 */ 988 case 0: 989 /* EGA/VGA: shouldn't be happening */ 990 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 991 biosadapter); 992 break; 993 case 1: 994 /* CGA 40x25 */ 995 /* FIXME: switch to the 80x25 mode? XXX */ 996 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA40]; 997 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 998 break; 999 case 2: 1000 /* CGA 80x25 */ 1001 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA80]; 1002 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 1003 break; 1004 case 3: 1005 /* MDA */ 1006 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 1007 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 1008 break; 1009 } 1010 } 1011 #else 1012 /* assume EGA/VGA? XXX */ 1013 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_EGA80]; 1014 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 1015 #endif /* VGA_NO_BIOS */ 1016 1017 biosadapters = 0; 1018 if (verify_adapter(&biosadapter[V_ADP_SECONDARY]) == 0) { 1019 ++biosadapters; 1020 biosadapter[V_ADP_SECONDARY].va_flags |= V_ADP_PROBED; 1021 biosadapter[V_ADP_SECONDARY].va_mode = 1022 biosadapter[V_ADP_SECONDARY].va_initial_mode = 1023 map_bios_mode_num(biosadapter[V_ADP_SECONDARY].va_type, 1024 biosadapter[V_ADP_SECONDARY].va_flags 1025 & V_ADP_COLOR, 1026 biosadapter[V_ADP_SECONDARY].va_initial_bios_mode); 1027 } else { 1028 biosadapter[V_ADP_SECONDARY].va_type = -1; 1029 } 1030 if (verify_adapter(&biosadapter[V_ADP_PRIMARY]) == 0) { 1031 ++biosadapters; 1032 biosadapter[V_ADP_PRIMARY].va_flags |= V_ADP_PROBED; 1033 #ifndef VGA_NO_BIOS 1034 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 1035 readb(BIOS_PADDRTOVADDR(0x449)); 1036 #else 1037 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 3; /* XXX */ 1038 #endif 1039 biosadapter[V_ADP_PRIMARY].va_mode = 1040 biosadapter[V_ADP_PRIMARY].va_initial_mode = 1041 map_bios_mode_num(biosadapter[V_ADP_PRIMARY].va_type, 1042 biosadapter[V_ADP_PRIMARY].va_flags & V_ADP_COLOR, 1043 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode); 1044 } else { 1045 biosadapter[V_ADP_PRIMARY] = biosadapter[V_ADP_SECONDARY]; 1046 biosadapter[V_ADP_SECONDARY].va_type = -1; 1047 } 1048 if (biosadapters == 0) 1049 return biosadapters; 1050 biosadapter[V_ADP_PRIMARY].va_unit = V_ADP_PRIMARY; 1051 biosadapter[V_ADP_SECONDARY].va_unit = V_ADP_SECONDARY; 1052 1053 #if 0 /* we don't need these... */ 1054 fb_init_struct(&biosadapter[V_ADP_PRIMARY], ...); 1055 fb_init_struct(&biosadapter[V_ADP_SECONDARY], ...); 1056 #endif 1057 1058 #ifdef notyet 1059 /* 1060 * We cannot have two video adapter of the same type; there must be 1061 * only one of color or mono adapter, or one each of them. 1062 */ 1063 if (biosadapters > 1) { 1064 if (!((biosadapter[0].va_flags ^ biosadapter[1].va_flags) 1065 & V_ADP_COLOR)) 1066 /* we have two mono or color adapters!! */ 1067 return (biosadapters = 0); 1068 } 1069 #endif 1070 1071 /* 1072 * Ensure a zero start address. The registers are w/o 1073 * for old hardware so it's too hard to relocate the active screen 1074 * memory. 1075 * This must be done before vga_save_state() for VGA. 1076 */ 1077 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 12); 1078 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1079 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 13); 1080 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1081 1082 /* the video mode parameter table in EGA/VGA BIOS */ 1083 /* NOTE: there can be only one EGA/VGA, wheather color or mono, 1084 * recognized by the video BIOS. 1085 */ 1086 if ((biosadapter[V_ADP_PRIMARY].va_type == KD_EGA) || 1087 (biosadapter[V_ADP_PRIMARY].va_type == KD_VGA)) { 1088 adp = &biosadapter[V_ADP_PRIMARY]; 1089 } else if ((biosadapter[V_ADP_SECONDARY].va_type == KD_EGA) || 1090 (biosadapter[V_ADP_SECONDARY].va_type == KD_VGA)) { 1091 adp = &biosadapter[V_ADP_SECONDARY]; 1092 } else { 1093 adp = NULL; 1094 } 1095 bzero(mode_map, sizeof(mode_map)); 1096 if (adp != NULL) { 1097 if (adp->va_type == KD_VGA) { 1098 vga_save_state(adp, &adpstate, sizeof(adpstate)); 1099 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1100 mode_map[adp->va_initial_mode] = adpstate.regs; 1101 rows_offset = 1; 1102 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1103 if (video_mode_ptr == NULL) { 1104 mode_map[adp->va_initial_mode] = adpstate.regs; 1105 rows_offset = 1; 1106 } else { 1107 /* discard the table if we are not familiar with it... */ 1108 map_mode_table(mode_map, video_mode_ptr, M_VGA_CG320 + 1); 1109 mp = get_mode_param(adp->va_initial_mode); 1110 if (mp != NULL) 1111 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs)); 1112 switch (comp_adpregs(adpstate.regs, mp)) { 1113 case COMP_IDENTICAL: 1114 /* 1115 * OK, this parameter table looks reasonably familiar 1116 * to us... 1117 */ 1118 /* 1119 * This is a kludge for Toshiba DynaBook SS433 1120 * whose BIOS video mode table entry has the actual # 1121 * of rows at the offset 1; BIOSes from other 1122 * manufacturers store the # of rows - 1 there. XXX 1123 */ 1124 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1125 break; 1126 1127 case COMP_SIMILAR: 1128 /* 1129 * Not exactly the same, but similar enough to be 1130 * trusted. However, use the saved register values 1131 * for the initial mode and other modes which are 1132 * based on the initial mode. 1133 */ 1134 mode_map[adp->va_initial_mode] = adpstate.regs; 1135 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1136 adpstate.regs[1] -= rows_offset - 1; 1137 break; 1138 1139 case COMP_DIFFERENT: 1140 default: 1141 /* 1142 * Don't use the parameter table in the BIOS, since 1143 * even the BIOS doesn't use it for the initial mode. 1144 * Restrict the tweaked modes to (in practice) 80x50 1145 * from 80x25 with 400 scan lines, since the only safe 1146 * tweak is changing the characters from 8x16 to 8x8. 1147 */ 1148 video_mode_ptr = NULL; 1149 bzero(mode_map, sizeof(mode_map)); 1150 mode_map[adp->va_initial_mode] = adpstate.regs; 1151 rows_offset = 1; 1152 1153 width = height = -1; 1154 for (i = 0; i < nitems(bios_vmode); ++i) { 1155 if (bios_vmode[i].vi_mode == adp->va_initial_mode) { 1156 width = bios_vmode[i].vi_width; 1157 height = bios_vmode[i].vi_height; 1158 break; 1159 } 1160 } 1161 for (i = 0; i < nitems(bios_vmode); ++i) { 1162 if (bios_vmode[i].vi_mode != adp->va_initial_mode && 1163 map_mode_num(bios_vmode[i].vi_mode) == 1164 adp->va_initial_mode && 1165 (bios_vmode[i].vi_width != width || 1166 bios_vmode[i].vi_height != 2 * height)) { 1167 bios_vmode[i].vi_mode = NA; 1168 } 1169 } 1170 break; 1171 } 1172 } 1173 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1174 1175 #ifndef VGA_NO_MODE_CHANGE 1176 adp->va_flags |= V_ADP_MODECHANGE; 1177 #endif 1178 #ifndef VGA_NO_FONT_LOADING 1179 adp->va_flags |= V_ADP_FONT; 1180 #endif 1181 } else if (adp->va_type == KD_EGA) { 1182 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1183 rows_offset = 1; 1184 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1185 if (video_mode_ptr == NULL) { 1186 rows_offset = 1; 1187 } else { 1188 map_mode_table(mode_map, video_mode_ptr, M_ENH_C80x25 + 1); 1189 /* XXX how can one validate the EGA table... */ 1190 mp = get_mode_param(adp->va_initial_mode); 1191 if (mp != NULL) { 1192 adp->va_flags |= V_ADP_MODECHANGE; 1193 #ifndef VGA_NO_FONT_LOADING 1194 adp->va_flags |= V_ADP_FONT; 1195 #endif 1196 rows_offset = 1; 1197 } else { 1198 /* 1199 * This is serious. We will not be able to switch video 1200 * modes at all... 1201 */ 1202 video_mode_ptr = NULL; 1203 bzero(mode_map, sizeof(mode_map)); 1204 rows_offset = 1; 1205 } 1206 } 1207 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1208 } 1209 } 1210 1211 /* remove conflicting modes if we have more than one adapter */ 1212 if (biosadapters > 0) { 1213 for (i = 0; i < biosadapters; ++i) { 1214 if (!(biosadapter[i].va_flags & V_ADP_MODECHANGE)) 1215 continue; 1216 clear_mode_map(&biosadapter[i], mode_map, M_VGA_CG320 + 1, 1217 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1218 V_INFO_COLOR : 0); 1219 if ((biosadapter[i].va_type == KD_VGA) 1220 || (biosadapter[i].va_type == KD_EGA)) { 1221 biosadapter[i].va_io_base = 1222 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1223 IO_VGA : IO_MDA; 1224 biosadapter[i].va_io_size = 32; 1225 } 1226 } 1227 } 1228 1229 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 1230 /* 1231 * Attempt to determine the real character width for each mode. 9 wide 1232 * is supposed to be standard for EGA mono mode and most VGA text modes, 1233 * but some hardware doesn't support it, so dynamic configuration is 1234 * needed. Bit 0 in sequencer register 1 is supposed control the width 1235 * (set = 8), but this is unreliable too. Trust that 0 in the sequencer 1236 * bit means 9 wide after verifying that 9 is consistent with some CRTC 1237 * timing. The ratio (Horizontal Total) / (Horizontal Displayed) is 1238 * about 1.2 in all standard 9-wide modes and should be about 9/8 larger 1239 * again in similar 8-wide modes; in practice it is usually about 1.4 1240 * times larger. 1241 */ 1242 for (i = 0; i < nitems(bios_vmode); ++i) { 1243 if (bios_vmode[i].vi_mem_model == V_INFO_MM_TEXT && 1244 bios_vmode[i].vi_width != 90) { 1245 mp = get_mode_param(map_mode_num(bios_vmode[i].vi_mode)); 1246 if (mp != NULL && !(mp[5] & 1) && mp[10] <= mp[11] * 125 / 100) 1247 bios_vmode[i].vi_flags |= V_INFO_CWIDTH9; 1248 } 1249 } 1250 #endif 1251 1252 /* buffer address */ 1253 vga_get_info(&biosadapter[V_ADP_PRIMARY], 1254 biosadapter[V_ADP_PRIMARY].va_initial_mode, &info); 1255 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1256 update_adapter_info(&biosadapter[V_ADP_PRIMARY], &info); 1257 1258 if (biosadapters > 1) { 1259 vga_get_info(&biosadapter[V_ADP_SECONDARY], 1260 biosadapter[V_ADP_SECONDARY].va_initial_mode, &info); 1261 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1262 update_adapter_info(&biosadapter[V_ADP_SECONDARY], &info); 1263 } 1264 1265 /* 1266 * XXX: we should verify the following values for the primary adapter... 1267 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463); 1268 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02) 1269 * ? 0 : V_ADP_COLOR; 1270 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a); 1271 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484); 1272 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485); 1273 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c); 1274 */ 1275 1276 return biosadapters; 1277 } 1278 1279 /* set the scan line length in pixel */ 1280 static int 1281 set_line_length(video_adapter_t *adp, int pixel) 1282 { 1283 u_char *mp; 1284 int ppw; /* pixels per word */ 1285 int bpl; /* bytes per line */ 1286 int count; 1287 1288 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1289 return ENODEV; 1290 mp = get_mode_param(adp->va_mode); 1291 if (mp == NULL) 1292 return EINVAL; 1293 1294 switch (adp->va_info.vi_mem_model) { 1295 case V_INFO_MM_PLANAR: 1296 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1297 count = howmany(pixel, ppw)/2; 1298 bpl = (howmany(pixel, ppw)/2)*4; 1299 break; 1300 case V_INFO_MM_PACKED: 1301 count = (pixel + 7)/8; 1302 bpl = rounddown(pixel + 7, 8); 1303 break; 1304 case V_INFO_MM_TEXT: 1305 count = (pixel + 7)/8; /* columns */ 1306 bpl = (pixel + 7)/8; /* columns */ 1307 break; 1308 default: 1309 return ENODEV; 1310 } 1311 1312 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */ 1313 count *= 2; /* byte mode */ 1314 outb(adp->va_crtc_addr, 0x13); 1315 outb(adp->va_crtc_addr + 1, count); 1316 adp->va_line_width = bpl; 1317 1318 return 0; 1319 } 1320 1321 static int 1322 set_display_start(video_adapter_t *adp, int x, int y) 1323 { 1324 int off; /* byte offset (graphics mode)/word offset (text mode) */ 1325 int poff; /* pixel offset */ 1326 int roff; /* row offset */ 1327 int ppb; /* pixels per byte */ 1328 1329 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1330 x &= ~7; 1331 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) { 1332 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1333 off = y*adp->va_line_width + x/ppb; 1334 roff = 0; 1335 poff = x%ppb; 1336 } else { 1337 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1338 outb(TSIDX, 1); 1339 if (inb(TSREG) & 1) 1340 ppb = 9; 1341 else 1342 ppb = 8; 1343 } else { 1344 ppb = 8; 1345 } 1346 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb; 1347 roff = y%adp->va_info.vi_cheight; 1348 /* FIXME: is this correct? XXX */ 1349 if (ppb == 8) 1350 poff = x%ppb; 1351 else 1352 poff = (x + 8)%ppb; 1353 } 1354 1355 /* start address */ 1356 outb(adp->va_crtc_addr, 0xc); /* high */ 1357 outb(adp->va_crtc_addr + 1, off >> 8); 1358 outb(adp->va_crtc_addr, 0xd); /* low */ 1359 outb(adp->va_crtc_addr + 1, off & 0xff); 1360 1361 /* horizontal pel pan */ 1362 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1363 inb(adp->va_crtc_addr + 6); 1364 outb(ATC, 0x13 | 0x20); 1365 outb(ATC, poff); 1366 inb(adp->va_crtc_addr + 6); 1367 outb(ATC, 0x20); 1368 } 1369 1370 /* preset raw scan */ 1371 outb(adp->va_crtc_addr, 8); 1372 outb(adp->va_crtc_addr + 1, roff); 1373 1374 adp->va_disp_start.x = x; 1375 adp->va_disp_start.y = y; 1376 return 0; 1377 } 1378 1379 #ifndef VGA_NO_MODE_CHANGE 1380 #if defined(__i386__) || defined(__amd64__) /* XXX */ 1381 static void 1382 fill(int val, void *d, size_t size) 1383 { 1384 u_char *p = d; 1385 1386 while (size-- > 0) 1387 *p++ = val; 1388 } 1389 #endif /* __i386__ */ 1390 1391 static void 1392 filll_io(int val, vm_offset_t d, size_t size) 1393 { 1394 while (size-- > 0) { 1395 writel(d, val); 1396 d += sizeof(u_int32_t); 1397 } 1398 } 1399 #endif /* !VGA_NO_MODE_CHANGE */ 1400 1401 /* entry points */ 1402 1403 #if 0 1404 static int 1405 vga_nop(void) 1406 { 1407 return 0; 1408 } 1409 #endif 1410 1411 static int 1412 vga_error(void) 1413 { 1414 return ENODEV; 1415 } 1416 1417 static int 1418 vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 1419 { 1420 probe_adapters(); 1421 if (unit >= biosadapters) 1422 return ENXIO; 1423 1424 *adpp = &biosadapter[unit]; 1425 1426 return 0; 1427 } 1428 1429 static int 1430 vga_init(int unit, video_adapter_t *adp, int flags) 1431 { 1432 if ((unit >= biosadapters) || (adp == NULL) || !probe_done(adp)) 1433 return ENXIO; 1434 1435 if (!init_done(adp)) { 1436 /* nothing to do really... */ 1437 adp->va_flags |= V_ADP_INITIALIZED; 1438 } 1439 1440 if (!config_done(adp)) { 1441 if (vid_register(adp) < 0) 1442 return ENXIO; 1443 adp->va_flags |= V_ADP_REGISTERED; 1444 } 1445 if (vga_sub_configure != NULL) 1446 (*vga_sub_configure)(0); 1447 1448 return 0; 1449 } 1450 1451 /* 1452 * get_info(): 1453 * Return the video_info structure of the requested video mode. 1454 * 1455 * all adapters 1456 */ 1457 static int 1458 vga_get_info(video_adapter_t *adp, int mode, video_info_t *info) 1459 { 1460 int i; 1461 1462 if (!vga_init_done) 1463 return ENXIO; 1464 1465 mode = map_gen_mode_num(adp->va_type, adp->va_flags & V_ADP_COLOR, mode); 1466 #ifndef VGA_NO_MODE_CHANGE 1467 if (adp->va_flags & V_ADP_MODECHANGE) { 1468 /* 1469 * If the parameter table entry for this mode is not found, 1470 * the mode is not supported... 1471 */ 1472 if (get_mode_param(mode) == NULL) 1473 return EINVAL; 1474 } else 1475 #endif /* VGA_NO_MODE_CHANGE */ 1476 { 1477 /* 1478 * Even if we don't support video mode switching on this adapter, 1479 * the information on the initial (thus current) video mode 1480 * should be made available. 1481 */ 1482 if (mode != adp->va_initial_mode) 1483 return EINVAL; 1484 } 1485 1486 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1487 if (bios_vmode[i].vi_mode == NA) 1488 continue; 1489 if (mode == bios_vmode[i].vi_mode) { 1490 *info = bios_vmode[i]; 1491 /* XXX */ 1492 info->vi_buffer_size = info->vi_window_size*info->vi_planes; 1493 return 0; 1494 } 1495 } 1496 return EINVAL; 1497 } 1498 1499 /* 1500 * query_mode(): 1501 * Find a video mode matching the requested parameters. 1502 * Fields filled with 0 are considered "don't care" fields and 1503 * match any modes. 1504 * 1505 * all adapters 1506 */ 1507 static int 1508 vga_query_mode(video_adapter_t *adp, video_info_t *info) 1509 { 1510 int i; 1511 1512 if (!vga_init_done) 1513 return ENXIO; 1514 1515 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1516 if (bios_vmode[i].vi_mode == NA) 1517 continue; 1518 1519 if ((info->vi_width != 0) 1520 && (info->vi_width != bios_vmode[i].vi_width)) 1521 continue; 1522 if ((info->vi_height != 0) 1523 && (info->vi_height != bios_vmode[i].vi_height)) 1524 continue; 1525 if ((info->vi_cwidth != 0) 1526 && (info->vi_cwidth != bios_vmode[i].vi_cwidth)) 1527 continue; 1528 if ((info->vi_cheight != 0) 1529 && (info->vi_cheight != bios_vmode[i].vi_cheight)) 1530 continue; 1531 if ((info->vi_depth != 0) 1532 && (info->vi_depth != bios_vmode[i].vi_depth)) 1533 continue; 1534 if ((info->vi_planes != 0) 1535 && (info->vi_planes != bios_vmode[i].vi_planes)) 1536 continue; 1537 /* XXX: should check pixel format, memory model */ 1538 if ((info->vi_flags != 0) 1539 && (info->vi_flags != bios_vmode[i].vi_flags)) 1540 continue; 1541 1542 /* verify if this mode is supported on this adapter */ 1543 if (vga_get_info(adp, bios_vmode[i].vi_mode, info)) 1544 continue; 1545 return 0; 1546 } 1547 return ENODEV; 1548 } 1549 1550 /* 1551 * set_mode(): 1552 * Change the video mode. 1553 * 1554 * EGA/VGA 1555 */ 1556 1557 #ifndef VGA_NO_MODE_CHANGE 1558 #ifdef VGA_WIDTH90 1559 static void 1560 set_width90(adp_state_t *params) 1561 { 1562 /* 1563 * Based on code submitted by Kelly Yancey (kbyanc@freedomnet.com) 1564 * and alexv@sui.gda.itesm.mx. 1565 */ 1566 params->regs[5] |= 1; /* toggle 8 pixel wide fonts */ 1567 params->regs[10+0x0] = 0x6b; 1568 params->regs[10+0x1] = 0x59; 1569 params->regs[10+0x2] = 0x5a; 1570 params->regs[10+0x3] = 0x8e; 1571 params->regs[10+0x4] = 0x5e; 1572 params->regs[10+0x5] = 0x8a; 1573 params->regs[10+0x13] = 45; 1574 params->regs[35+0x13] = 0; 1575 } 1576 #endif /* VGA_WIDTH90 */ 1577 #endif /* !VGA_NO_MODE_CHANGE */ 1578 1579 static int 1580 vga_set_mode(video_adapter_t *adp, int mode) 1581 { 1582 #ifndef VGA_NO_MODE_CHANGE 1583 video_info_t info; 1584 adp_state_t params; 1585 1586 prologue(adp, V_ADP_MODECHANGE, ENODEV); 1587 1588 mode = map_gen_mode_num(adp->va_type, 1589 adp->va_flags & V_ADP_COLOR, mode); 1590 if (vga_get_info(adp, mode, &info)) 1591 return EINVAL; 1592 1593 #if VGA_DEBUG > 1 1594 printf("vga_set_mode(): setting mode %d\n", mode); 1595 #endif 1596 1597 params.sig = V_STATE_SIG; 1598 bcopy(get_mode_param(mode), params.regs, sizeof(params.regs)); 1599 1600 switch (mode) { 1601 #ifdef VGA_WIDTH90 1602 case M_VGA_C90x60: case M_VGA_M90x60: 1603 set_width90(¶ms); 1604 /* FALLTHROUGH */ 1605 #endif 1606 case M_VGA_C80x60: case M_VGA_M80x60: 1607 params.regs[2] = 0x08; 1608 params.regs[19] = 0x47; 1609 goto special_480l; 1610 1611 #ifdef VGA_WIDTH90 1612 case M_VGA_C90x30: case M_VGA_M90x30: 1613 set_width90(¶ms); 1614 /* FALLTHROUGH */ 1615 #endif 1616 case M_VGA_C80x30: case M_VGA_M80x30: 1617 params.regs[19] = 0x4f; 1618 special_480l: 1619 params.regs[9] |= 0xc0; 1620 params.regs[16] = 0x08; 1621 params.regs[17] = 0x3e; 1622 params.regs[26] = 0xea; 1623 params.regs[28] = 0xdf; 1624 params.regs[31] = 0xe7; 1625 params.regs[32] = 0x04; 1626 goto setup_mode; 1627 1628 #ifdef VGA_WIDTH90 1629 case M_VGA_C90x43: case M_VGA_M90x43: 1630 set_width90(¶ms); 1631 /* FALLTHROUGH */ 1632 #endif 1633 case M_ENH_C80x43: case M_ENH_B80x43: 1634 params.regs[28] = 87; 1635 goto special_80x50; 1636 1637 #ifdef VGA_WIDTH90 1638 case M_VGA_C90x50: case M_VGA_M90x50: 1639 set_width90(¶ms); 1640 /* FALLTHROUGH */ 1641 #endif 1642 case M_VGA_C80x50: case M_VGA_M80x50: 1643 special_80x50: 1644 params.regs[2] = 8; 1645 params.regs[19] = 7; 1646 goto setup_mode; 1647 1648 #ifdef VGA_WIDTH90 1649 case M_VGA_C90x25: case M_VGA_M90x25: 1650 set_width90(¶ms); 1651 /* FALLTHROUGH */ 1652 #endif 1653 case M_VGA_C40x25: case M_VGA_C80x25: 1654 case M_VGA_M80x25: 1655 case M_B40x25: case M_C40x25: 1656 case M_B80x25: case M_C80x25: 1657 case M_ENH_B40x25: case M_ENH_C40x25: 1658 case M_ENH_B80x25: case M_ENH_C80x25: 1659 case M_EGAMONO80x25: 1660 1661 setup_mode: 1662 vga_load_state(adp, ¶ms); 1663 break; 1664 1665 case M_VGA_MODEX: 1666 /* "unchain" the VGA mode */ 1667 params.regs[5-1+0x04] &= 0xf7; 1668 params.regs[5-1+0x04] |= 0x04; 1669 /* turn off doubleword mode */ 1670 params.regs[10+0x14] &= 0xbf; 1671 /* turn off word addressing */ 1672 params.regs[10+0x17] |= 0x40; 1673 /* set logical screen width */ 1674 params.regs[10+0x13] = 80; 1675 /* set 240 lines */ 1676 params.regs[10+0x11] = 0x2c; 1677 params.regs[10+0x06] = 0x0d; 1678 params.regs[10+0x07] = 0x3e; 1679 params.regs[10+0x10] = 0xea; 1680 params.regs[10+0x11] = 0xac; 1681 params.regs[10+0x12] = 0xdf; 1682 params.regs[10+0x15] = 0xe7; 1683 params.regs[10+0x16] = 0x06; 1684 /* set vertical sync polarity to reflect aspect ratio */ 1685 params.regs[9] = 0xe3; 1686 goto setup_grmode; 1687 1688 case M_BG320: case M_CG320: case M_BG640: 1689 case M_CG320_D: case M_CG640_E: 1690 case M_CG640x350: case M_ENH_CG640: 1691 case M_BG640x480: case M_CG640x480: case M_VGA_CG320: 1692 1693 setup_grmode: 1694 vga_load_state(adp, ¶ms); 1695 break; 1696 1697 default: 1698 return EINVAL; 1699 } 1700 1701 adp->va_mode = mode; 1702 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1703 update_adapter_info(adp, &info); 1704 1705 /* move hardware cursor out of the way */ 1706 vidd_set_hw_cursor(adp, -1, -1); 1707 1708 return 0; 1709 #else /* VGA_NO_MODE_CHANGE */ 1710 return ENODEV; 1711 #endif /* VGA_NO_MODE_CHANGE */ 1712 } 1713 1714 #ifndef VGA_NO_FONT_LOADING 1715 1716 static void 1717 set_font_mode(video_adapter_t *adp, u_char *buf) 1718 { 1719 u_char *mp; 1720 int s; 1721 1722 s = splhigh(); 1723 1724 /* save register values */ 1725 if (adp->va_type == KD_VGA) { 1726 outb(TSIDX, 0x02); buf[0] = inb(TSREG); 1727 outb(TSIDX, 0x04); buf[1] = inb(TSREG); 1728 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG); 1729 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG); 1730 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG); 1731 inb(adp->va_crtc_addr + 6); 1732 outb(ATC, 0x10); buf[5] = inb(ATC + 1); 1733 } else /* if (adp->va_type == KD_EGA) */ { 1734 /* 1735 * EGA cannot be read; copy parameters from the mode parameter 1736 * table. 1737 */ 1738 mp = get_mode_param(adp->va_mode); 1739 buf[0] = mp[5 + 0x02 - 1]; 1740 buf[1] = mp[5 + 0x04 - 1]; 1741 buf[2] = mp[55 + 0x04]; 1742 buf[3] = mp[55 + 0x05]; 1743 buf[4] = mp[55 + 0x06]; 1744 buf[5] = mp[35 + 0x10]; 1745 } 1746 1747 /* setup vga for loading fonts */ 1748 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1749 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01); 1750 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1751 outb(ATC, 0x20); /* enable palette */ 1752 1753 #ifdef VGA_SLOW_IOACCESS 1754 #ifdef VGA_ALT_SEQACCESS 1755 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1756 #endif 1757 outb(TSIDX, 0x02); outb(TSREG, 0x04); 1758 outb(TSIDX, 0x04); outb(TSREG, 0x07); 1759 #ifdef VGA_ALT_SEQACCESS 1760 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1761 #endif 1762 outb(GDCIDX, 0x04); outb(GDCREG, 0x02); 1763 outb(GDCIDX, 0x05); outb(GDCREG, 0x00); 1764 outb(GDCIDX, 0x06); outb(GDCREG, 0x04); 1765 #else /* VGA_SLOW_IOACCESS */ 1766 #ifdef VGA_ALT_SEQACCESS 1767 outw(TSIDX, 0x0100); 1768 #endif 1769 outw(TSIDX, 0x0402); 1770 outw(TSIDX, 0x0704); 1771 #ifdef VGA_ALT_SEQACCESS 1772 outw(TSIDX, 0x0300); 1773 #endif 1774 outw(GDCIDX, 0x0204); 1775 outw(GDCIDX, 0x0005); 1776 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */ 1777 #endif /* VGA_SLOW_IOACCESS */ 1778 1779 splx(s); 1780 } 1781 1782 static void 1783 set_normal_mode(video_adapter_t *adp, u_char *buf) 1784 { 1785 int s; 1786 1787 s = splhigh(); 1788 1789 /* setup vga for normal operation mode again */ 1790 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1791 outb(ATC, 0x10); outb(ATC, buf[5]); 1792 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1793 outb(ATC, 0x20); /* enable palette */ 1794 1795 #ifdef VGA_SLOW_IOACCESS 1796 #ifdef VGA_ALT_SEQACCESS 1797 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1798 #endif 1799 outb(TSIDX, 0x02); outb(TSREG, buf[0]); 1800 outb(TSIDX, 0x04); outb(TSREG, buf[1]); 1801 #ifdef VGA_ALT_SEQACCESS 1802 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1803 #endif 1804 outb(GDCIDX, 0x04); outb(GDCREG, buf[2]); 1805 outb(GDCIDX, 0x05); outb(GDCREG, buf[3]); 1806 if (adp->va_crtc_addr == MONO_CRTC) { 1807 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x08); 1808 } else { 1809 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x0c); 1810 } 1811 #else /* VGA_SLOW_IOACCESS */ 1812 #ifdef VGA_ALT_SEQACCESS 1813 outw(TSIDX, 0x0100); 1814 #endif 1815 outw(TSIDX, 0x0002 | (buf[0] << 8)); 1816 outw(TSIDX, 0x0004 | (buf[1] << 8)); 1817 #ifdef VGA_ALT_SEQACCESS 1818 outw(TSIDX, 0x0300); 1819 #endif 1820 outw(GDCIDX, 0x0004 | (buf[2] << 8)); 1821 outw(GDCIDX, 0x0005 | (buf[3] << 8)); 1822 if (adp->va_crtc_addr == MONO_CRTC) 1823 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x08)<<8)); 1824 else 1825 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8)); 1826 #endif /* VGA_SLOW_IOACCESS */ 1827 1828 splx(s); 1829 } 1830 1831 #endif /* VGA_NO_FONT_LOADING */ 1832 1833 /* 1834 * save_font(): 1835 * Read the font data in the requested font page from the video adapter. 1836 * 1837 * EGA/VGA 1838 */ 1839 static int 1840 vga_save_font(video_adapter_t *adp, int page, int fontsize, int fontwidth, 1841 u_char *data, int ch, int count) 1842 { 1843 #ifndef VGA_NO_FONT_LOADING 1844 u_char buf[PARAM_BUFSIZE]; 1845 vm_offset_t segment; 1846 int c; 1847 #ifdef VGA_ALT_SEQACCESS 1848 int s; 1849 u_char val = 0; 1850 #endif 1851 1852 prologue(adp, V_ADP_FONT, ENODEV); 1853 1854 if (fontsize < 14) { 1855 /* FONT_8 */ 1856 fontsize = 8; 1857 } else if (fontsize >= 32) { 1858 fontsize = 32; 1859 } else if (fontsize >= 16) { 1860 /* FONT_16 */ 1861 fontsize = 16; 1862 } else { 1863 /* FONT_14 */ 1864 fontsize = 14; 1865 } 1866 1867 if (page < 0 || page >= 8 || fontwidth != 8) 1868 return EINVAL; 1869 segment = FONT_BUF + 0x4000*page; 1870 if (page > 3) 1871 segment -= 0xe000; 1872 1873 #ifdef VGA_ALT_SEQACCESS 1874 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1875 s = splhigh(); 1876 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1877 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1878 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1879 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1880 splx(s); 1881 } 1882 #endif 1883 1884 set_font_mode(adp, buf); 1885 if (fontsize == 32) { 1886 bcopy_fromio((uintptr_t)segment + ch*32, data, fontsize*count); 1887 } else { 1888 for (c = ch; count > 0; ++c, --count) { 1889 bcopy_fromio((uintptr_t)segment + c*32, data, fontsize); 1890 data += fontsize; 1891 } 1892 } 1893 set_normal_mode(adp, buf); 1894 1895 #ifdef VGA_ALT_SEQACCESS 1896 if (adp->va_type == KD_VGA) { 1897 s = splhigh(); 1898 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1899 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1900 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1901 splx(s); 1902 } 1903 #endif 1904 1905 return 0; 1906 #else /* VGA_NO_FONT_LOADING */ 1907 return ENODEV; 1908 #endif /* VGA_NO_FONT_LOADING */ 1909 } 1910 1911 /* 1912 * load_font(): 1913 * Set the font data in the requested font page. 1914 * NOTE: it appears that some recent video adapters do not support 1915 * the font page other than 0... XXX 1916 * 1917 * EGA/VGA 1918 */ 1919 static int 1920 vga_load_font(video_adapter_t *adp, int page, int fontsize, int fontwidth, 1921 u_char *data, int ch, int count) 1922 { 1923 #ifndef VGA_NO_FONT_LOADING 1924 u_char buf[PARAM_BUFSIZE]; 1925 vm_offset_t segment; 1926 int c; 1927 #ifdef VGA_ALT_SEQACCESS 1928 int s; 1929 u_char val = 0; 1930 #endif 1931 1932 prologue(adp, V_ADP_FONT, ENODEV); 1933 1934 if (fontsize < 14) { 1935 /* FONT_8 */ 1936 fontsize = 8; 1937 } else if (fontsize >= 32) { 1938 fontsize = 32; 1939 } else if (fontsize >= 16) { 1940 /* FONT_16 */ 1941 fontsize = 16; 1942 } else { 1943 /* FONT_14 */ 1944 fontsize = 14; 1945 } 1946 1947 if (page < 0 || page >= 8 || fontwidth != 8) 1948 return EINVAL; 1949 segment = FONT_BUF + 0x4000*page; 1950 if (page > 3) 1951 segment -= 0xe000; 1952 1953 #ifdef VGA_ALT_SEQACCESS 1954 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1955 s = splhigh(); 1956 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1957 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1958 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1959 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1960 splx(s); 1961 } 1962 #endif 1963 1964 set_font_mode(adp, buf); 1965 if (fontsize == 32) { 1966 bcopy_toio(data, (uintptr_t)segment + ch*32, fontsize*count); 1967 } else { 1968 for (c = ch; count > 0; ++c, --count) { 1969 bcopy_toio(data, (uintptr_t)segment + c*32, fontsize); 1970 data += fontsize; 1971 } 1972 } 1973 set_normal_mode(adp, buf); 1974 1975 #ifdef VGA_ALT_SEQACCESS 1976 if (adp->va_type == KD_VGA) { 1977 s = splhigh(); 1978 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1979 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1980 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1981 splx(s); 1982 } 1983 #endif 1984 1985 return 0; 1986 #else /* VGA_NO_FONT_LOADING */ 1987 return ENODEV; 1988 #endif /* VGA_NO_FONT_LOADING */ 1989 } 1990 1991 /* 1992 * show_font(): 1993 * Activate the requested font page. 1994 * NOTE: it appears that some recent video adapters do not support 1995 * the font page other than 0... XXX 1996 * 1997 * EGA/VGA 1998 */ 1999 static int 2000 vga_show_font(video_adapter_t *adp, int page) 2001 { 2002 #ifndef VGA_NO_FONT_LOADING 2003 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f }; 2004 int s; 2005 2006 prologue(adp, V_ADP_FONT, ENODEV); 2007 if (page < 0 || page >= 8) 2008 return EINVAL; 2009 2010 s = splhigh(); 2011 outb(TSIDX, 0x03); outb(TSREG, cg[page]); 2012 splx(s); 2013 2014 return 0; 2015 #else /* VGA_NO_FONT_LOADING */ 2016 return ENODEV; 2017 #endif /* VGA_NO_FONT_LOADING */ 2018 } 2019 2020 /* 2021 * save_palette(): 2022 * Read DAC values. The values have expressed in 8 bits. 2023 * 2024 * VGA 2025 */ 2026 static int 2027 vga_save_palette(video_adapter_t *adp, u_char *palette) 2028 { 2029 int bits; 2030 int i; 2031 2032 prologue(adp, V_ADP_PALETTE, ENODEV); 2033 2034 /* 2035 * We store 8 bit values in the palette buffer, while the standard 2036 * VGA has 6 bit DAC . 2037 */ 2038 outb(PALRADR, 0x00); 2039 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; 2040 for (i = 0; i < 256*3; ++i) 2041 palette[i] = inb(PALDATA) << bits; 2042 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2043 return 0; 2044 } 2045 2046 static int 2047 vga_save_palette2(video_adapter_t *adp, int base, int count, 2048 u_char *r, u_char *g, u_char *b) 2049 { 2050 int bits; 2051 int i; 2052 2053 prologue(adp, V_ADP_PALETTE, ENODEV); 2054 2055 outb(PALRADR, base); 2056 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; 2057 for (i = 0; i < count; ++i) { 2058 r[i] = inb(PALDATA) << bits; 2059 g[i] = inb(PALDATA) << bits; 2060 b[i] = inb(PALDATA) << bits; 2061 } 2062 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2063 return 0; 2064 } 2065 2066 /* 2067 * load_palette(): 2068 * Set DAC values. 2069 * 2070 * VGA 2071 */ 2072 static int 2073 vga_load_palette(video_adapter_t *adp, u_char *palette) 2074 { 2075 int bits; 2076 int i; 2077 2078 prologue(adp, V_ADP_PALETTE, ENODEV); 2079 2080 outb(PIXMASK, 0xff); /* no pixelmask */ 2081 outb(PALWADR, 0x00); 2082 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; 2083 for (i = 0; i < 256*3; ++i) 2084 outb(PALDATA, palette[i] >> bits); 2085 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2086 outb(ATC, 0x20); /* enable palette */ 2087 return 0; 2088 } 2089 2090 static int 2091 vga_load_palette2(video_adapter_t *adp, int base, int count, 2092 u_char *r, u_char *g, u_char *b) 2093 { 2094 int bits; 2095 int i; 2096 2097 prologue(adp, V_ADP_PALETTE, ENODEV); 2098 2099 outb(PIXMASK, 0xff); /* no pixelmask */ 2100 outb(PALWADR, base); 2101 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; 2102 for (i = 0; i < count; ++i) { 2103 outb(PALDATA, r[i] >> bits); 2104 outb(PALDATA, g[i] >> bits); 2105 outb(PALDATA, b[i] >> bits); 2106 } 2107 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2108 outb(ATC, 0x20); /* enable palette */ 2109 return 0; 2110 } 2111 2112 /* 2113 * set_border(): 2114 * Change the border color. 2115 * 2116 * CGA/EGA/VGA 2117 */ 2118 static int 2119 vga_set_border(video_adapter_t *adp, int color) 2120 { 2121 prologue(adp, V_ADP_BORDER, ENODEV); 2122 2123 switch (adp->va_type) { 2124 case KD_EGA: 2125 case KD_VGA: 2126 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 2127 outb(ATC, 0x31); outb(ATC, color & 0xff); 2128 break; 2129 case KD_CGA: 2130 outb(adp->va_crtc_addr + 5, color & 0x0f); /* color select register */ 2131 break; 2132 case KD_MONO: 2133 case KD_HERCULES: 2134 default: 2135 break; 2136 } 2137 return 0; 2138 } 2139 2140 /* 2141 * save_state(): 2142 * Read video register values. 2143 * NOTE: this function only reads the standard EGA/VGA registers. 2144 * any extra/extended registers of SVGA adapters are not saved. 2145 * 2146 * VGA 2147 */ 2148 static int 2149 vga_save_state(video_adapter_t *adp, void *p, size_t size) 2150 { 2151 video_info_t info; 2152 u_char *buf; 2153 int crtc_addr; 2154 int i, j; 2155 int s; 2156 2157 if (size == 0) { 2158 /* return the required buffer size */ 2159 prologue(adp, V_ADP_STATESAVE, 0); 2160 return sizeof(adp_state_t); 2161 } else { 2162 prologue(adp, V_ADP_STATESAVE, ENODEV); 2163 if (size < sizeof(adp_state_t)) 2164 return EINVAL; 2165 } 2166 2167 ((adp_state_t *)p)->sig = V_STATE_SIG; 2168 buf = ((adp_state_t *)p)->regs; 2169 bzero(buf, V_MODE_PARAM_SIZE); 2170 crtc_addr = adp->va_crtc_addr; 2171 2172 s = splhigh(); 2173 2174 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2175 for (i = 0, j = 5; i < 4; i++) { 2176 outb(TSIDX, i + 1); 2177 buf[j++] = inb(TSREG); 2178 } 2179 buf[9] = inb(MISC + 10); /* dot-clock */ 2180 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2181 2182 for (i = 0, j = 10; i < 25; i++) { /* crtc */ 2183 outb(crtc_addr, i); 2184 buf[j++] = inb(crtc_addr + 1); 2185 } 2186 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */ 2187 inb(crtc_addr + 6); /* reset flip-flop */ 2188 outb(ATC, i); 2189 buf[j++] = inb(ATC + 1); 2190 } 2191 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */ 2192 outb(GDCIDX, i); 2193 buf[j++] = inb(GDCREG); 2194 } 2195 inb(crtc_addr + 6); /* reset flip-flop */ 2196 outb(ATC, 0x20); /* enable palette */ 2197 2198 splx(s); 2199 2200 #if 1 2201 if (vga_get_info(adp, adp->va_mode, &info) == 0) { 2202 if (info.vi_flags & V_INFO_GRAPHICS) { 2203 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */ 2204 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */ 2205 } else { 2206 buf[0] = info.vi_width; /* COLS */ 2207 buf[1] = info.vi_height - 1; /* ROWS */ 2208 } 2209 buf[2] = info.vi_cheight; /* POINTS */ 2210 } 2211 #else 2212 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */ 2213 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */ 2214 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */ 2215 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c)); 2216 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d)); 2217 #endif 2218 2219 return 0; 2220 } 2221 2222 /* 2223 * load_state(): 2224 * Set video registers at once. 2225 * NOTE: this function only updates the standard EGA/VGA registers. 2226 * any extra/extended registers of SVGA adapters are not changed. 2227 * 2228 * EGA/VGA 2229 */ 2230 static int 2231 vga_load_state(video_adapter_t *adp, void *p) 2232 { 2233 u_char *buf; 2234 int crtc_addr; 2235 int s; 2236 int i; 2237 2238 prologue(adp, V_ADP_STATELOAD, ENODEV); 2239 if (((adp_state_t *)p)->sig != V_STATE_SIG) 2240 return EINVAL; 2241 2242 buf = ((adp_state_t *)p)->regs; 2243 crtc_addr = adp->va_crtc_addr; 2244 2245 #if VGA_DEBUG > 1 2246 dump_buffer(buf, V_MODE_PARAM_SIZE); 2247 #endif 2248 2249 s = splhigh(); 2250 2251 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2252 for (i = 0; i < 4; ++i) { /* program sequencer */ 2253 outb(TSIDX, i + 1); 2254 outb(TSREG, buf[i + 5]); 2255 } 2256 outb(MISC, buf[9]); /* set dot-clock */ 2257 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2258 outb(crtc_addr, 0x11); 2259 outb(crtc_addr + 1, inb(crtc_addr + 1) & 0x7F); 2260 for (i = 0; i < 25; ++i) { /* program crtc */ 2261 outb(crtc_addr, i); 2262 outb(crtc_addr + 1, buf[i + 10]); 2263 } 2264 inb(crtc_addr+6); /* reset flip-flop */ 2265 for (i = 0; i < 20; ++i) { /* program attribute ctrl */ 2266 outb(ATC, i); 2267 outb(ATC, buf[i + 35]); 2268 } 2269 for (i = 0; i < 9; ++i) { /* program graph data ctrl */ 2270 outb(GDCIDX, i); 2271 outb(GDCREG, buf[i + 55]); 2272 } 2273 inb(crtc_addr + 6); /* reset flip-flop */ 2274 outb(ATC, 0x20); /* enable palette */ 2275 2276 #ifdef notyet /* a temporary workaround for kernel panic, XXX */ 2277 #ifndef VGA_NO_BIOS 2278 if (adp->va_unit == V_ADP_PRIMARY) { 2279 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */ 2280 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */ 2281 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */ 2282 #if 0 2283 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]); 2284 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]); 2285 #endif 2286 } 2287 #endif /* VGA_NO_BIOS */ 2288 #endif /* notyet */ 2289 2290 splx(s); 2291 return 0; 2292 } 2293 2294 /* 2295 * set_origin(): 2296 * Change the origin (window mapping) of the banked frame buffer. 2297 */ 2298 static int 2299 vga_set_origin(video_adapter_t *adp, off_t offset) 2300 { 2301 /* 2302 * The standard video modes do not require window mapping; 2303 * always return error. 2304 */ 2305 return ENODEV; 2306 } 2307 2308 /* 2309 * read_hw_cursor(): 2310 * Read the position of the hardware text cursor. 2311 * 2312 * all adapters 2313 */ 2314 static int 2315 vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 2316 { 2317 u_int16_t off; 2318 int s; 2319 2320 if (!vga_init_done) 2321 return ENXIO; 2322 2323 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2324 return ENODEV; 2325 2326 s = spltty(); 2327 outb(adp->va_crtc_addr, 14); 2328 off = inb(adp->va_crtc_addr + 1); 2329 outb(adp->va_crtc_addr, 15); 2330 off = (off << 8) | inb(adp->va_crtc_addr + 1); 2331 splx(s); 2332 2333 *row = off / adp->va_info.vi_width; 2334 *col = off % adp->va_info.vi_width; 2335 2336 return 0; 2337 } 2338 2339 /* 2340 * set_hw_cursor(): 2341 * Move the hardware text cursor. If col and row are both -1, 2342 * the cursor won't be shown. 2343 * 2344 * all adapters 2345 */ 2346 static int 2347 vga_set_hw_cursor(video_adapter_t *adp, int col, int row) 2348 { 2349 u_int16_t off; 2350 int s; 2351 2352 if (!vga_init_done) 2353 return ENXIO; 2354 2355 if ((col == -1) && (row == -1)) { 2356 off = -1; 2357 } else { 2358 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2359 return ENODEV; 2360 off = row*adp->va_info.vi_width + col; 2361 } 2362 2363 s = spltty(); 2364 outb(adp->va_crtc_addr, 14); 2365 outb(adp->va_crtc_addr + 1, off >> 8); 2366 outb(adp->va_crtc_addr, 15); 2367 outb(adp->va_crtc_addr + 1, off & 0x00ff); 2368 splx(s); 2369 2370 return 0; 2371 } 2372 2373 /* 2374 * set_hw_cursor_shape(): 2375 * Change the shape of the hardware text cursor. If the height is 2376 * zero or negative, the cursor won't be shown. 2377 * 2378 * all adapters 2379 */ 2380 static int 2381 vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 2382 int celsize, int blink) 2383 { 2384 int s; 2385 2386 if (!vga_init_done) 2387 return ENXIO; 2388 2389 s = spltty(); 2390 switch (adp->va_type) { 2391 case KD_VGA: 2392 case KD_CGA: 2393 case KD_MONO: 2394 case KD_HERCULES: 2395 default: 2396 if (height <= 0) { 2397 /* make the cursor invisible */ 2398 outb(adp->va_crtc_addr, 10); 2399 outb(adp->va_crtc_addr + 1, 32); 2400 outb(adp->va_crtc_addr, 11); 2401 outb(adp->va_crtc_addr + 1, 0); 2402 } else { 2403 outb(adp->va_crtc_addr, 10); 2404 outb(adp->va_crtc_addr + 1, celsize - base - height); 2405 outb(adp->va_crtc_addr, 11); 2406 outb(adp->va_crtc_addr + 1, celsize - base - 1); 2407 } 2408 break; 2409 case KD_EGA: 2410 if (height <= 0) { 2411 /* make the cursor invisible */ 2412 outb(adp->va_crtc_addr, 10); 2413 outb(adp->va_crtc_addr + 1, celsize); 2414 outb(adp->va_crtc_addr, 11); 2415 outb(adp->va_crtc_addr + 1, 0); 2416 } else { 2417 outb(adp->va_crtc_addr, 10); 2418 outb(adp->va_crtc_addr + 1, celsize - base - height); 2419 outb(adp->va_crtc_addr, 11); 2420 outb(adp->va_crtc_addr + 1, celsize - base); 2421 } 2422 break; 2423 } 2424 splx(s); 2425 2426 return 0; 2427 } 2428 2429 /* 2430 * blank_display() 2431 * Put the display in power save/power off mode. 2432 * 2433 * all adapters 2434 */ 2435 static int 2436 vga_blank_display(video_adapter_t *adp, int mode) 2437 { 2438 u_char val; 2439 int s; 2440 2441 s = splhigh(); 2442 switch (adp->va_type) { 2443 case KD_VGA: 2444 switch (mode) { 2445 case V_DISPLAY_SUSPEND: 2446 case V_DISPLAY_STAND_BY: 2447 outb(TSIDX, 0x01); 2448 val = inb(TSREG); 2449 outb(TSIDX, 0x01); 2450 outb(TSREG, val | 0x20); 2451 outb(adp->va_crtc_addr, 0x17); 2452 val = inb(adp->va_crtc_addr + 1); 2453 outb(adp->va_crtc_addr + 1, val & ~0x80); 2454 break; 2455 case V_DISPLAY_BLANK: 2456 outb(TSIDX, 0x01); 2457 val = inb(TSREG); 2458 outb(TSIDX, 0x01); 2459 outb(TSREG, val | 0x20); 2460 break; 2461 case V_DISPLAY_ON: 2462 outb(TSIDX, 0x01); 2463 val = inb(TSREG); 2464 outb(TSIDX, 0x01); 2465 outb(TSREG, val & 0xDF); 2466 outb(adp->va_crtc_addr, 0x17); 2467 val = inb(adp->va_crtc_addr + 1); 2468 outb(adp->va_crtc_addr + 1, val | 0x80); 2469 break; 2470 } 2471 break; 2472 2473 case KD_EGA: 2474 /* no support yet */ 2475 splx(s); 2476 return ENODEV; 2477 2478 case KD_CGA: 2479 switch (mode) { 2480 case V_DISPLAY_SUSPEND: 2481 case V_DISPLAY_STAND_BY: 2482 case V_DISPLAY_BLANK: 2483 outb(adp->va_crtc_addr + 4, 0x25); 2484 break; 2485 case V_DISPLAY_ON: 2486 outb(adp->va_crtc_addr + 4, 0x2d); 2487 break; 2488 } 2489 break; 2490 2491 case KD_MONO: 2492 case KD_HERCULES: 2493 switch (mode) { 2494 case V_DISPLAY_SUSPEND: 2495 case V_DISPLAY_STAND_BY: 2496 case V_DISPLAY_BLANK: 2497 outb(adp->va_crtc_addr + 4, 0x21); 2498 break; 2499 case V_DISPLAY_ON: 2500 outb(adp->va_crtc_addr + 4, 0x29); 2501 break; 2502 } 2503 break; 2504 default: 2505 break; 2506 } 2507 splx(s); 2508 2509 return 0; 2510 } 2511 2512 /* 2513 * mmap(): 2514 * Mmap frame buffer. 2515 * 2516 * all adapters 2517 */ 2518 static int 2519 vga_mmap_buf(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr, 2520 int prot, vm_memattr_t *memattr) 2521 { 2522 if (adp->va_info.vi_flags & V_INFO_LINEAR) 2523 return -1; 2524 2525 #if VGA_DEBUG > 0 2526 printf("vga_mmap_buf(): window:0x%jx, offset:0x%jx\n", 2527 (uintmax_t)adp->va_info.vi_window, (uintmax_t)offset); 2528 #endif 2529 2530 /* XXX: is this correct? */ 2531 if (offset > adp->va_window_size - PAGE_SIZE) 2532 return -1; 2533 2534 *paddr = adp->va_info.vi_window + offset; 2535 return 0; 2536 } 2537 2538 #ifndef VGA_NO_MODE_CHANGE 2539 2540 static void 2541 planar_fill(video_adapter_t *adp, int val) 2542 { 2543 int length; 2544 int at; /* position in the frame buffer */ 2545 int l; 2546 2547 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2548 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2549 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2550 outw(GDCIDX, 0xff08); /* bit mask */ 2551 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2552 at = 0; 2553 length = adp->va_line_width*adp->va_info.vi_height; 2554 while (length > 0) { 2555 l = imin(length, adp->va_window_size); 2556 vidd_set_win_org(adp, at); 2557 bzero_io(adp->va_window, l); 2558 length -= l; 2559 at += l; 2560 } 2561 outw(GDCIDX, 0x0000); /* set/reset */ 2562 outw(GDCIDX, 0x0001); /* set/reset enable */ 2563 } 2564 2565 static void 2566 packed_fill(video_adapter_t *adp, int val) 2567 { 2568 int length; 2569 int at; /* position in the frame buffer */ 2570 int l; 2571 2572 at = 0; 2573 length = adp->va_line_width*adp->va_info.vi_height; 2574 while (length > 0) { 2575 l = imin(length, adp->va_window_size); 2576 vidd_set_win_org(adp, at); 2577 fill_io(val, adp->va_window, l); 2578 length -= l; 2579 at += l; 2580 } 2581 } 2582 2583 static void 2584 direct_fill(video_adapter_t *adp, int val) 2585 { 2586 int length; 2587 int at; /* position in the frame buffer */ 2588 int l; 2589 2590 at = 0; 2591 length = adp->va_line_width*adp->va_info.vi_height; 2592 while (length > 0) { 2593 l = imin(length, adp->va_window_size); 2594 vidd_set_win_org(adp, at); 2595 switch (adp->va_info.vi_pixel_size) { 2596 case sizeof(u_int16_t): 2597 fillw_io(val, adp->va_window, l/sizeof(u_int16_t)); 2598 break; 2599 case 3: 2600 /* FIXME */ 2601 break; 2602 case sizeof(u_int32_t): 2603 filll_io(val, adp->va_window, l/sizeof(u_int32_t)); 2604 break; 2605 } 2606 length -= l; 2607 at += l; 2608 } 2609 } 2610 2611 static int 2612 vga_clear(video_adapter_t *adp) 2613 { 2614 switch (adp->va_info.vi_mem_model) { 2615 case V_INFO_MM_TEXT: 2616 /* do nothing? XXX */ 2617 break; 2618 case V_INFO_MM_PLANAR: 2619 planar_fill(adp, 0); 2620 break; 2621 case V_INFO_MM_PACKED: 2622 packed_fill(adp, 0); 2623 break; 2624 case V_INFO_MM_DIRECT: 2625 direct_fill(adp, 0); 2626 break; 2627 } 2628 return 0; 2629 } 2630 2631 #ifdef notyet 2632 static void 2633 planar_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2634 { 2635 int banksize; 2636 int bank; 2637 int pos; 2638 int offset; /* offset within window */ 2639 int bx; 2640 int l; 2641 2642 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2643 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2644 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2645 outw(GDCIDX, 0xff08); /* bit mask */ 2646 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2647 2648 banksize = adp->va_window_size; 2649 bank = -1; 2650 while (cy > 0) { 2651 pos = adp->va_line_width*y + x/8; 2652 if (bank != pos/banksize) { 2653 vidd_set_win_org(adp, pos); 2654 bank = pos/banksize; 2655 } 2656 offset = pos%banksize; 2657 bx = (x + cx)/8 - x/8; 2658 if (x % 8) { 2659 outw(GDCIDX, ((0xff00 >> (x % 8)) & 0xff00) | 0x08); 2660 writeb(adp->va_window + offset, 0); 2661 ++offset; 2662 --bx; 2663 if (offset >= banksize) { 2664 offset = 0; 2665 ++bank; /* next bank */ 2666 vidd_set_win_org(adp, bank*banksize); 2667 } 2668 outw(GDCIDX, 0xff08); /* bit mask */ 2669 } 2670 while (bx > 0) { 2671 l = imin(bx, banksize); 2672 bzero_io(adp->va_window + offset, l); 2673 offset += l; 2674 bx -= l; 2675 if (offset >= banksize) { 2676 offset = 0; 2677 ++bank; /* next bank */ 2678 vidd_set_win_org(adp, bank*banksize); 2679 } 2680 } 2681 if ((x + cx) % 8) { 2682 outw(GDCIDX, (~(0xff00 >> ((x + cx) % 8)) & 0xff00) | 0x08); 2683 writeb(adp->va_window + offset, 0); 2684 ++offset; 2685 if (offset >= banksize) { 2686 offset = 0; 2687 ++bank; /* next bank */ 2688 vidd_set_win_org(adp, bank*banksize); 2689 } 2690 outw(GDCIDX, 0xff08); /* bit mask */ 2691 } 2692 ++y; 2693 --cy; 2694 } 2695 2696 outw(GDCIDX, 0xff08); /* bit mask */ 2697 outw(GDCIDX, 0x0000); /* set/reset */ 2698 outw(GDCIDX, 0x0001); /* set/reset enable */ 2699 } 2700 2701 static void 2702 packed_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2703 { 2704 int banksize; 2705 int bank; 2706 int pos; 2707 int offset; /* offset within window */ 2708 int end; 2709 2710 banksize = adp->va_window_size; 2711 bank = -1; 2712 cx *= adp->va_info.vi_pixel_size; 2713 while (cy > 0) { 2714 pos = adp->va_line_width*y + x*adp->va_info.vi_pixel_size; 2715 if (bank != pos/banksize) { 2716 vidd_set_win_org(adp, pos); 2717 bank = pos/banksize; 2718 } 2719 offset = pos%banksize; 2720 end = imin(offset + cx, banksize); 2721 fill_io(val, adp->va_window + offset, 2722 (end - offset)/adp->va_info.vi_pixel_size); 2723 /* the line may cross the window boundary */ 2724 if (offset + cx > banksize) { 2725 ++bank; /* next bank */ 2726 vidd_set_win_org(adp, bank*banksize); 2727 end = offset + cx - banksize; 2728 fill_io(val, adp->va_window, end/adp->va_info.vi_pixel_size); 2729 } 2730 ++y; 2731 --cy; 2732 } 2733 } 2734 2735 static void 2736 direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2737 { 2738 int banksize; 2739 int bank; 2740 int pos; 2741 int offset; /* offset within window */ 2742 int end; 2743 2744 /* 2745 * XXX: the function assumes that banksize is a muliple of 2746 * sizeof(u_int16_t). 2747 */ 2748 banksize = adp->va_window_size; 2749 bank = -1; 2750 cx *= sizeof(u_int16_t); 2751 while (cy > 0) { 2752 pos = adp->va_line_width*y + x*sizeof(u_int16_t); 2753 if (bank != pos/banksize) { 2754 vidd_set_win_org(adp, pos); 2755 bank = pos/banksize; 2756 } 2757 offset = pos%banksize; 2758 end = imin(offset + cx, banksize); 2759 fillw_io(val, adp->va_window + offset, 2760 (end - offset)/sizeof(u_int16_t)); 2761 /* the line may cross the window boundary */ 2762 if (offset + cx > banksize) { 2763 ++bank; /* next bank */ 2764 vidd_set_win_org(adp, bank*banksize); 2765 end = offset + cx - banksize; 2766 fillw_io(val, adp->va_window, end/sizeof(u_int16_t)); 2767 } 2768 ++y; 2769 --cy; 2770 } 2771 } 2772 2773 static void 2774 direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2775 { 2776 int banksize; 2777 int bank; 2778 int pos; 2779 int offset; /* offset within window */ 2780 int end; 2781 int i; 2782 int j; 2783 u_int8_t b[3]; 2784 2785 b[0] = val & 0x0000ff; 2786 b[1] = (val >> 8) & 0x0000ff; 2787 b[2] = (val >> 16) & 0x0000ff; 2788 banksize = adp->va_window_size; 2789 bank = -1; 2790 cx *= 3; 2791 while (cy > 0) { 2792 pos = adp->va_line_width*y + x*3; 2793 if (bank != pos/banksize) { 2794 vidd_set_win_org(adp, pos); 2795 bank = pos/banksize; 2796 } 2797 offset = pos%banksize; 2798 end = imin(offset + cx, banksize); 2799 for (i = 0, j = offset; j < end; i = (++i)%3, ++j) { 2800 writeb(adp->va_window + j, b[i]); 2801 } 2802 /* the line may cross the window boundary */ 2803 if (offset + cx >= banksize) { 2804 ++bank; /* next bank */ 2805 vidd_set_win_org(adp, bank*banksize); 2806 j = 0; 2807 end = offset + cx - banksize; 2808 for (; j < end; i = (++i)%3, ++j) { 2809 writeb(adp->va_window + j, b[i]); 2810 } 2811 } 2812 ++y; 2813 --cy; 2814 } 2815 } 2816 2817 static void 2818 direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2819 { 2820 int banksize; 2821 int bank; 2822 int pos; 2823 int offset; /* offset within window */ 2824 int end; 2825 2826 /* 2827 * XXX: the function assumes that banksize is a muliple of 2828 * sizeof(u_int32_t). 2829 */ 2830 banksize = adp->va_window_size; 2831 bank = -1; 2832 cx *= sizeof(u_int32_t); 2833 while (cy > 0) { 2834 pos = adp->va_line_width*y + x*sizeof(u_int32_t); 2835 if (bank != pos/banksize) { 2836 vidd_set_win_org(adp, pos); 2837 bank = pos/banksize; 2838 } 2839 offset = pos%banksize; 2840 end = imin(offset + cx, banksize); 2841 filll_io(val, adp->va_window + offset, 2842 (end - offset)/sizeof(u_int32_t)); 2843 /* the line may cross the window boundary */ 2844 if (offset + cx > banksize) { 2845 ++bank; /* next bank */ 2846 vidd_set_win_org(adp, bank*banksize); 2847 end = offset + cx - banksize; 2848 filll_io(val, adp->va_window, end/sizeof(u_int32_t)); 2849 } 2850 ++y; 2851 --cy; 2852 } 2853 } 2854 2855 static int 2856 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2857 { 2858 switch (adp->va_info.vi_mem_model) { 2859 case V_INFO_MM_TEXT: 2860 /* do nothing? XXX */ 2861 break; 2862 case V_INFO_MM_PLANAR: 2863 planar_fill_rect(adp, val, x, y, cx, cy); 2864 break; 2865 case V_INFO_MM_PACKED: 2866 packed_fill_rect(adp, val, x, y, cx, cy); 2867 break; 2868 case V_INFO_MM_DIRECT: 2869 switch (adp->va_info.vi_pixel_size) { 2870 case sizeof(u_int16_t): 2871 direct_fill_rect16(adp, val, x, y, cx, cy); 2872 break; 2873 case 3: 2874 direct_fill_rect24(adp, val, x, y, cx, cy); 2875 break; 2876 case sizeof(u_int32_t): 2877 direct_fill_rect32(adp, val, x, y, cx, cy); 2878 break; 2879 } 2880 break; 2881 } 2882 return 0; 2883 } 2884 #else /* !notyet */ 2885 static int 2886 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2887 { 2888 return ENODEV; 2889 } 2890 #endif /* notyet */ 2891 2892 static int 2893 vga_bitblt(video_adapter_t *adp,...) 2894 { 2895 /* FIXME */ 2896 return ENODEV; 2897 } 2898 2899 #endif /* !VGA_NO_MODE_CHANGE */ 2900 2901 static int 2902 get_palette(video_adapter_t *adp, int base, int count, 2903 u_char *red, u_char *green, u_char *blue, u_char *trans) 2904 { 2905 u_char *r; 2906 u_char *g; 2907 u_char *b; 2908 2909 if (count < 0 || base < 0 || count > 256 || base > 256 || 2910 base + count > 256) 2911 return EINVAL; 2912 2913 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2914 g = r + count; 2915 b = g + count; 2916 if (vga_save_palette2(adp, base, count, r, g, b)) { 2917 free(r, M_DEVBUF); 2918 return ENODEV; 2919 } 2920 copyout(r, red, count); 2921 copyout(g, green, count); 2922 copyout(b, blue, count); 2923 if (trans != NULL) { 2924 bzero(r, count); 2925 copyout(r, trans, count); 2926 } 2927 free(r, M_DEVBUF); 2928 2929 return 0; 2930 } 2931 2932 static int 2933 set_palette(video_adapter_t *adp, int base, int count, 2934 u_char *red, u_char *green, u_char *blue, u_char *trans) 2935 { 2936 u_char *r; 2937 u_char *g; 2938 u_char *b; 2939 int err; 2940 2941 if (count < 0 || base < 0 || count > 256 || base > 256 || 2942 base + count > 256) 2943 return EINVAL; 2944 2945 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2946 g = r + count; 2947 b = g + count; 2948 err = copyin(red, r, count); 2949 if (!err) 2950 err = copyin(green, g, count); 2951 if (!err) 2952 err = copyin(blue, b, count); 2953 if (!err) 2954 err = vga_load_palette2(adp, base, count, r, g, b); 2955 free(r, M_DEVBUF); 2956 2957 return (err ? ENODEV : 0); 2958 } 2959 2960 static int 2961 vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 2962 { 2963 switch (cmd) { 2964 case FBIO_GETWINORG: /* get frame buffer window origin */ 2965 *(u_int *)arg = 0; 2966 return 0; 2967 2968 case FBIO_SETWINORG: /* set frame buffer window origin */ 2969 return ENODEV; 2970 2971 case FBIO_SETDISPSTART: /* set display start address */ 2972 return (set_display_start(adp, 2973 ((video_display_start_t *)arg)->x, 2974 ((video_display_start_t *)arg)->y) 2975 ? ENODEV : 0); 2976 2977 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */ 2978 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0); 2979 2980 case FBIO_GETPALETTE: /* get color palette */ 2981 return get_palette(adp, ((video_color_palette_t *)arg)->index, 2982 ((video_color_palette_t *)arg)->count, 2983 ((video_color_palette_t *)arg)->red, 2984 ((video_color_palette_t *)arg)->green, 2985 ((video_color_palette_t *)arg)->blue, 2986 ((video_color_palette_t *)arg)->transparent); 2987 2988 case FBIO_SETPALETTE: /* set color palette */ 2989 return set_palette(adp, ((video_color_palette_t *)arg)->index, 2990 ((video_color_palette_t *)arg)->count, 2991 ((video_color_palette_t *)arg)->red, 2992 ((video_color_palette_t *)arg)->green, 2993 ((video_color_palette_t *)arg)->blue, 2994 ((video_color_palette_t *)arg)->transparent); 2995 2996 case FBIOGTYPE: /* get frame buffer type info. */ 2997 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type); 2998 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height; 2999 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width; 3000 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth; 3001 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8)) 3002 ((struct fbtype *)arg)->fb_cmsize = 0; 3003 else 3004 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth; 3005 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size; 3006 return 0; 3007 3008 case FBIOGETCMAP: /* get color palette */ 3009 return get_palette(adp, ((struct fbcmap *)arg)->index, 3010 ((struct fbcmap *)arg)->count, 3011 ((struct fbcmap *)arg)->red, 3012 ((struct fbcmap *)arg)->green, 3013 ((struct fbcmap *)arg)->blue, NULL); 3014 3015 case FBIOPUTCMAP: /* set color palette */ 3016 return set_palette(adp, ((struct fbcmap *)arg)->index, 3017 ((struct fbcmap *)arg)->count, 3018 ((struct fbcmap *)arg)->red, 3019 ((struct fbcmap *)arg)->green, 3020 ((struct fbcmap *)arg)->blue, NULL); 3021 3022 default: 3023 return fb_commonioctl(adp, cmd, arg); 3024 } 3025 } 3026 3027 static void 3028 dump_buffer(u_char *buf, size_t len) 3029 { 3030 int i; 3031 3032 for(i = 0; i < len;) { 3033 printf("%02x ", buf[i]); 3034 if ((++i % 16) == 0) 3035 printf("\n"); 3036 } 3037 } 3038 3039 /* 3040 * diag(): 3041 * Print some information about the video adapter and video modes, 3042 * with requested level of details. 3043 * 3044 * all adapters 3045 */ 3046 static int 3047 vga_diag(video_adapter_t *adp, int level) 3048 { 3049 u_char *mp; 3050 #if FB_DEBUG > 1 3051 video_info_t info; 3052 int i; 3053 #endif 3054 3055 if (!vga_init_done) 3056 return ENXIO; 3057 3058 #if FB_DEBUG > 1 3059 #ifndef VGA_NO_BIOS 3060 printf("vga: RTC equip. code:0x%02x, DCC code:0x%02x\n", 3061 rtcin(RTC_EQUIPMENT), readb(BIOS_PADDRTOVADDR(0x488))); 3062 printf("vga: CRTC:0x%x, video option:0x%02x, ", 3063 readw(BIOS_PADDRTOVADDR(0x463)), 3064 readb(BIOS_PADDRTOVADDR(0x487))); 3065 printf("rows:%d, cols:%d, font height:%d\n", 3066 readb(BIOS_PADDRTOVADDR(0x44a)), 3067 readb(BIOS_PADDRTOVADDR(0x484)) + 1, 3068 readb(BIOS_PADDRTOVADDR(0x485))); 3069 #endif /* VGA_NO_BIOS */ 3070 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 3071 printf("vga: param table EGA/VGA:%p", video_mode_ptr); 3072 printf(", CGA/MDA:%p\n", video_mode_ptr2); 3073 printf("vga: rows_offset:%d\n", rows_offset); 3074 #endif 3075 #endif /* FB_DEBUG > 1 */ 3076 3077 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level); 3078 3079 #if FB_DEBUG > 1 3080 if (adp->va_flags & V_ADP_MODECHANGE) { 3081 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 3082 if (bios_vmode[i].vi_mode == NA) 3083 continue; 3084 if (get_mode_param(bios_vmode[i].vi_mode) == NULL) 3085 continue; 3086 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level); 3087 } 3088 } else { 3089 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */ 3090 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level); 3091 } 3092 #endif /* FB_DEBUG > 1 */ 3093 3094 if ((adp->va_type != KD_EGA) && (adp->va_type != KD_VGA)) 3095 return 0; 3096 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 3097 if (video_mode_ptr == NULL) 3098 printf("vga%d: %s: WARNING: video mode switching is not " 3099 "fully supported on this adapter\n", 3100 adp->va_unit, adp->va_name); 3101 #endif 3102 if (level <= 0) 3103 return 0; 3104 3105 if (adp->va_type == KD_VGA) { 3106 printf("VGA parameters upon power-up\n"); 3107 dump_buffer(adpstate.regs, sizeof(adpstate.regs)); 3108 printf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode); 3109 dump_buffer(adpstate2.regs, sizeof(adpstate2.regs)); 3110 } 3111 3112 mp = get_mode_param(adp->va_initial_mode); 3113 if (mp == NULL) /* this shouldn't be happening */ 3114 return 0; 3115 printf("EGA/VGA parameters to be used for mode %d\n", adp->va_initial_mode); 3116 dump_buffer(mp, V_MODE_PARAM_SIZE); 3117 3118 return 0; 3119 } 3120