1 /*- 2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 3 * Copyright (c) 1992-1998 Søren Schmidt 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer as 11 * the first lines of this file unmodified. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 */ 30 31 #include <sys/cdefs.h> 32 __FBSDID("$FreeBSD$"); 33 34 #include "opt_vga.h" 35 #include "opt_fb.h" 36 #ifndef FB_DEBUG 37 #define FB_DEBUG 0 38 #endif 39 #include "opt_syscons.h" /* should be removed in the future, XXX */ 40 41 #include <sys/param.h> 42 #include <sys/systm.h> 43 #include <sys/kernel.h> 44 #include <sys/conf.h> 45 #include <sys/fcntl.h> 46 #include <sys/malloc.h> 47 #include <sys/fbio.h> 48 49 #include <vm/vm.h> 50 #include <vm/vm_param.h> 51 #include <vm/pmap.h> 52 53 #include <machine/md_var.h> 54 #if defined(__i386__) || defined(__amd64__) 55 #include <machine/pc/bios.h> 56 #endif 57 #include <machine/bus.h> 58 59 #include <dev/fb/fbreg.h> 60 #include <dev/fb/vgareg.h> 61 62 #include <isa/isareg.h> 63 64 #ifndef VGA_DEBUG 65 #define VGA_DEBUG 0 66 #endif 67 68 /* XXX machine/pc/bios.h has got too much i386-specific stuff in it */ 69 #ifndef BIOS_PADDRTOVADDR 70 #define BIOS_PADDRTOVADDR(x) (x) 71 #endif 72 73 int 74 vga_probe_unit(int unit, video_adapter_t *buf, int flags) 75 { 76 video_adapter_t *adp; 77 video_switch_t *sw; 78 int error; 79 80 sw = vid_get_switch(VGA_DRIVER_NAME); 81 if (sw == NULL) 82 return 0; 83 error = (*sw->probe)(unit, &adp, NULL, flags); 84 if (error) 85 return error; 86 bcopy(adp, buf, sizeof(*buf)); 87 return 0; 88 } 89 90 int 91 vga_attach_unit(int unit, vga_softc_t *sc, int flags) 92 { 93 video_switch_t *sw; 94 int error; 95 96 sw = vid_get_switch(VGA_DRIVER_NAME); 97 if (sw == NULL) 98 return ENXIO; 99 100 error = (*sw->probe)(unit, &sc->adp, NULL, flags); 101 if (error) 102 return error; 103 return (*sw->init)(unit, sc->adp, flags); 104 } 105 106 /* cdev driver functions */ 107 108 #ifdef FB_INSTALL_CDEV 109 110 int 111 vga_open(struct cdev *dev, vga_softc_t *sc, int flag, int mode, struct thread *td) 112 { 113 if (sc == NULL) 114 return ENXIO; 115 if (mode & (O_CREAT | O_APPEND | O_TRUNC)) 116 return ENODEV; 117 118 return genfbopen(&sc->gensc, sc->adp, flag, mode, td); 119 } 120 121 int 122 vga_close(struct cdev *dev, vga_softc_t *sc, int flag, int mode, struct thread *td) 123 { 124 return genfbclose(&sc->gensc, sc->adp, flag, mode, td); 125 } 126 127 int 128 vga_read(struct cdev *dev, vga_softc_t *sc, struct uio *uio, int flag) 129 { 130 return genfbread(&sc->gensc, sc->adp, uio, flag); 131 } 132 133 int 134 vga_write(struct cdev *dev, vga_softc_t *sc, struct uio *uio, int flag) 135 { 136 return genfbread(&sc->gensc, sc->adp, uio, flag); 137 } 138 139 int 140 vga_ioctl(struct cdev *dev, vga_softc_t *sc, u_long cmd, caddr_t arg, int flag, 141 struct thread *td) 142 { 143 return genfbioctl(&sc->gensc, sc->adp, cmd, arg, flag, td); 144 } 145 146 int 147 vga_mmap(struct cdev *dev, vga_softc_t *sc, vm_ooffset_t offset, 148 vm_offset_t *paddr, int prot, vm_memattr_t *memattr) 149 { 150 return genfbmmap(&sc->gensc, sc->adp, offset, paddr, prot, memattr); 151 } 152 153 #endif /* FB_INSTALL_CDEV */ 154 155 /* LOW-LEVEL */ 156 157 #include <isa/rtc.h> 158 #ifdef __i386__ 159 #include <dev/fb/vesa.h> 160 #endif 161 162 #define probe_done(adp) ((adp)->va_flags & V_ADP_PROBED) 163 #define init_done(adp) ((adp)->va_flags & V_ADP_INITIALIZED) 164 #define config_done(adp) ((adp)->va_flags & V_ADP_REGISTERED) 165 166 /* for compatibility with old kernel options */ 167 #ifdef SC_ALT_SEQACCESS 168 #undef SC_ALT_SEQACCESS 169 #undef VGA_ALT_SEQACCESS 170 #define VGA_ALT_SEQACCESS 1 171 #endif 172 173 #ifdef SLOW_VGA 174 #undef SLOW_VGA 175 #undef VGA_SLOW_IOACCESS 176 #define VGA_SLOW_IOACCESS 177 #endif 178 179 /* architecture dependent option */ 180 #if !defined(__i386__) && !defined(__amd64__) 181 #define VGA_NO_BIOS 1 182 #endif 183 184 /* this should really be in `rtc.h' */ 185 #define RTC_EQUIPMENT 0x14 186 187 /* various sizes */ 188 #define V_MODE_MAP_SIZE (M_VGA_CG320 + 1) 189 #define V_MODE_PARAM_SIZE 64 190 191 /* video adapter state buffer */ 192 struct adp_state { 193 int sig; 194 #define V_STATE_SIG 0x736f6962 195 u_char regs[V_MODE_PARAM_SIZE]; 196 }; 197 typedef struct adp_state adp_state_t; 198 199 /* video adapter information */ 200 #define DCC_MONO 0 201 #define DCC_CGA40 1 202 #define DCC_CGA80 2 203 #define DCC_EGAMONO 3 204 #define DCC_EGA40 4 205 #define DCC_EGA80 5 206 207 /* 208 * NOTE: `va_window' should have a virtual address, but is initialized 209 * with a physical address in the following table, as verify_adapter() 210 * will perform address conversion at run-time. 211 */ 212 static video_adapter_t adapter_init_value[] = { 213 /* DCC_MONO */ 214 { 0, KD_MONO, "mda", 0, 0, 0, IO_MDA, IO_MDASIZE, MONO_CRTC, 215 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 216 0, 0, 0, 0, 7, 0, }, 217 /* DCC_CGA40 */ 218 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 219 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 220 0, 0, 0, 0, 3, 0, }, 221 /* DCC_CGA80 */ 222 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 223 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 224 0, 0, 0, 0, 3, 0, }, 225 /* DCC_EGAMONO */ 226 { 0, KD_EGA, "ega", 0, 0, 0, IO_MDA, 48, MONO_CRTC, 227 EGA_BUF_BASE, EGA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 228 0, 0, 0, 0, 7, 0, }, 229 /* DCC_EGA40 */ 230 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 231 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 232 0, 0, 0, 0, 3, 0, }, 233 /* DCC_EGA80 */ 234 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 235 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 236 0, 0, 0, 0, 3, 0, }, 237 }; 238 239 static video_adapter_t biosadapter[2]; 240 static int biosadapters = 0; 241 242 /* video driver declarations */ 243 static int vga_configure(int flags); 244 int (*vga_sub_configure)(int flags); 245 #if 0 246 static int vga_nop(void); 247 #endif 248 static int vga_error(void); 249 static vi_probe_t vga_probe; 250 static vi_init_t vga_init; 251 static vi_get_info_t vga_get_info; 252 static vi_query_mode_t vga_query_mode; 253 static vi_set_mode_t vga_set_mode; 254 static vi_save_font_t vga_save_font; 255 static vi_load_font_t vga_load_font; 256 static vi_show_font_t vga_show_font; 257 static vi_save_palette_t vga_save_palette; 258 static vi_load_palette_t vga_load_palette; 259 static vi_set_border_t vga_set_border; 260 static vi_save_state_t vga_save_state; 261 static vi_load_state_t vga_load_state; 262 static vi_set_win_org_t vga_set_origin; 263 static vi_read_hw_cursor_t vga_read_hw_cursor; 264 static vi_set_hw_cursor_t vga_set_hw_cursor; 265 static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape; 266 static vi_blank_display_t vga_blank_display; 267 static vi_mmap_t vga_mmap_buf; 268 static vi_ioctl_t vga_dev_ioctl; 269 #ifndef VGA_NO_MODE_CHANGE 270 static vi_clear_t vga_clear; 271 static vi_fill_rect_t vga_fill_rect; 272 static vi_bitblt_t vga_bitblt; 273 #else /* VGA_NO_MODE_CHANGE */ 274 #define vga_clear (vi_clear_t *)vga_error 275 #define vga_fill_rect (vi_fill_rect_t *)vga_error 276 #define vga_bitblt (vi_bitblt_t *)vga_error 277 #endif 278 static vi_diag_t vga_diag; 279 280 static video_switch_t vgavidsw = { 281 vga_probe, 282 vga_init, 283 vga_get_info, 284 vga_query_mode, 285 vga_set_mode, 286 vga_save_font, 287 vga_load_font, 288 vga_show_font, 289 vga_save_palette, 290 vga_load_palette, 291 vga_set_border, 292 vga_save_state, 293 vga_load_state, 294 vga_set_origin, 295 vga_read_hw_cursor, 296 vga_set_hw_cursor, 297 vga_set_hw_cursor_shape, 298 vga_blank_display, 299 vga_mmap_buf, 300 vga_dev_ioctl, 301 vga_clear, 302 vga_fill_rect, 303 vga_bitblt, 304 vga_error, 305 vga_error, 306 vga_diag, 307 }; 308 309 VIDEO_DRIVER(mda, vgavidsw, NULL); 310 VIDEO_DRIVER(cga, vgavidsw, NULL); 311 VIDEO_DRIVER(ega, vgavidsw, NULL); 312 VIDEO_DRIVER(vga, vgavidsw, vga_configure); 313 314 /* VGA BIOS standard video modes */ 315 #define EOT (-1) 316 #define NA (-2) 317 318 static video_info_t bios_vmode[] = { 319 /* CGA */ 320 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1, 321 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 322 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1, 323 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 324 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1, 325 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 326 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1, 327 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 328 /* EGA */ 329 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1, 330 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 331 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1, 332 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 333 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1, 334 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 335 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1, 336 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 337 /* VGA */ 338 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1, 339 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 340 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1, 341 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 342 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1, 343 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 344 /* MDA */ 345 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1, 346 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 347 /* EGA */ 348 { M_ENH_B80x43, V_INFO_COLOR, 80, 43, 8, 8, 2, 1, 349 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 350 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1, 351 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 352 /* VGA */ 353 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1, 354 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 355 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1, 356 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 357 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1, 358 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 359 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1, 360 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 361 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1, 362 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 363 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1, 364 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 365 366 #ifndef VGA_NO_MODE_CHANGE 367 368 #ifdef VGA_WIDTH90 369 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1, 370 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 371 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1, 372 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 373 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1, 374 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 375 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1, 376 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 377 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1, 378 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 379 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1, 380 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 381 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1, 382 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 383 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1, 384 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 385 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1, 386 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 387 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1, 388 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 389 #endif /* VGA_WIDTH90 */ 390 391 /* CGA */ 392 { M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 393 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 394 { M_CG320, 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_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1, 397 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 398 /* EGA */ 399 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4, 400 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 401 V_INFO_MM_PLANAR }, 402 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4, 403 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 404 V_INFO_MM_PLANAR }, 405 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 406 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 , 407 V_INFO_MM_PLANAR }, 408 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 409 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 410 V_INFO_MM_PLANAR }, 411 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2, 412 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 413 V_INFO_MM_PLANAR }, 414 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 415 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 416 V_INFO_MM_PLANAR }, 417 /* VGA */ 418 { M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 419 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 420 V_INFO_MM_PLANAR }, 421 { M_CG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 422 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 423 V_INFO_MM_PLANAR }, 424 { M_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1, 425 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 426 V_INFO_MM_PACKED, 1 }, 427 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 4, 428 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 429 V_INFO_MM_VGAX, 1 }, 430 #endif /* VGA_NO_MODE_CHANGE */ 431 432 { EOT }, 433 }; 434 435 static int vga_init_done = FALSE; 436 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 437 static u_char *video_mode_ptr = NULL; /* EGA/VGA */ 438 static u_char *video_mode_ptr2 = NULL; /* CGA/MDA */ 439 #endif 440 static u_char *mode_map[V_MODE_MAP_SIZE]; 441 static adp_state_t adpstate; 442 static adp_state_t adpstate2; 443 static int rows_offset = 1; 444 445 /* local macros and functions */ 446 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 447 448 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 449 static void map_mode_table(u_char *map[], u_char *table, int max); 450 #endif 451 static void clear_mode_map(video_adapter_t *adp, u_char *map[], int max, 452 int color); 453 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 454 static int map_mode_num(int mode); 455 #endif 456 static int map_gen_mode_num(int type, int color, int mode); 457 static int map_bios_mode_num(int type, int color, int bios_mode); 458 static u_char *get_mode_param(int mode); 459 #ifndef VGA_NO_BIOS 460 static void fill_adapter_param(int code, video_adapter_t *adp); 461 #endif 462 static int verify_adapter(video_adapter_t *adp); 463 static void update_adapter_info(video_adapter_t *adp, video_info_t *info); 464 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 465 #define COMP_IDENTICAL 0 466 #define COMP_SIMILAR 1 467 #define COMP_DIFFERENT 2 468 static int comp_adpregs(u_char *buf1, u_char *buf2); 469 #endif 470 static int probe_adapters(void); 471 static int set_line_length(video_adapter_t *adp, int pixel); 472 static int set_display_start(video_adapter_t *adp, int x, int y); 473 474 #ifndef VGA_NO_MODE_CHANGE 475 #ifdef VGA_WIDTH90 476 static void set_width90(adp_state_t *params); 477 #endif 478 #endif /* !VGA_NO_MODE_CHANGE */ 479 480 #ifndef VGA_NO_FONT_LOADING 481 #define PARAM_BUFSIZE 6 482 static void set_font_mode(video_adapter_t *adp, u_char *buf); 483 static void set_normal_mode(video_adapter_t *adp, u_char *buf); 484 #endif 485 486 #ifndef VGA_NO_MODE_CHANGE 487 static void filll_io(int val, vm_offset_t d, size_t size); 488 static void planar_fill(video_adapter_t *adp, int val); 489 static void packed_fill(video_adapter_t *adp, int val); 490 static void direct_fill(video_adapter_t *adp, int val); 491 #ifdef notyet 492 static void planar_fill_rect(video_adapter_t *adp, int val, int x, int y, 493 int cx, int cy); 494 static void packed_fill_rect(video_adapter_t *adp, int val, int x, int y, 495 int cx, int cy); 496 static void direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, 497 int cx, int cy); 498 static void direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, 499 int cx, int cy); 500 static void direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, 501 int cx, int cy); 502 #endif /* notyet */ 503 #endif /* !VGA_NO_MODE_CHANGE */ 504 505 static void dump_buffer(u_char *buf, size_t len); 506 507 #define ISMAPPED(pa, width) \ 508 (((pa) <= (u_long)0x1000 - (width)) \ 509 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width))) 510 511 #define prologue(adp, flag, err) \ 512 if (!vga_init_done || !((adp)->va_flags & (flag))) \ 513 return (err) 514 515 /* a backdoor for the console driver */ 516 static int 517 vga_configure(int flags) 518 { 519 int i; 520 521 probe_adapters(); 522 for (i = 0; i < biosadapters; ++i) { 523 if (!probe_done(&biosadapter[i])) 524 continue; 525 biosadapter[i].va_flags |= V_ADP_INITIALIZED; 526 if (!config_done(&biosadapter[i])) { 527 if (vid_register(&biosadapter[i]) < 0) 528 continue; 529 biosadapter[i].va_flags |= V_ADP_REGISTERED; 530 } 531 } 532 if (vga_sub_configure != NULL) 533 (*vga_sub_configure)(flags); 534 535 return biosadapters; 536 } 537 538 /* local subroutines */ 539 540 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 541 /* construct the mode parameter map */ 542 static void 543 map_mode_table(u_char *map[], u_char *table, int max) 544 { 545 int i; 546 547 for(i = 0; i < max; ++i) 548 map[i] = table + i*V_MODE_PARAM_SIZE; 549 for(; i < V_MODE_MAP_SIZE; ++i) 550 map[i] = NULL; 551 } 552 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 553 554 static void 555 clear_mode_map(video_adapter_t *adp, u_char *map[], int max, int color) 556 { 557 video_info_t info; 558 int i; 559 560 /* 561 * NOTE: we don't touch `bios_vmode[]' because it is shared 562 * by all adapters. 563 */ 564 for(i = 0; i < max; ++i) { 565 if (vga_get_info(adp, i, &info)) 566 continue; 567 if ((info.vi_flags & V_INFO_COLOR) != color) 568 map[i] = NULL; 569 } 570 } 571 572 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 573 /* map the non-standard video mode to a known mode number */ 574 static int 575 map_mode_num(int mode) 576 { 577 static struct { 578 int from; 579 int to; 580 } mode_map[] = { 581 { M_ENH_B80x43, M_ENH_B80x25 }, 582 { M_ENH_C80x43, M_ENH_C80x25 }, 583 { M_VGA_M80x30, M_VGA_M80x25 }, 584 { M_VGA_C80x30, M_VGA_C80x25 }, 585 { M_VGA_M80x50, M_VGA_M80x25 }, 586 { M_VGA_C80x50, M_VGA_C80x25 }, 587 { M_VGA_M80x60, M_VGA_M80x25 }, 588 { M_VGA_C80x60, M_VGA_C80x25 }, 589 #ifdef VGA_WIDTH90 590 { M_VGA_M90x25, M_VGA_M80x25 }, 591 { M_VGA_C90x25, M_VGA_C80x25 }, 592 { M_VGA_M90x30, M_VGA_M80x25 }, 593 { M_VGA_C90x30, M_VGA_C80x25 }, 594 { M_VGA_M90x43, M_VGA_M80x25 }, 595 { M_VGA_C90x43, M_ENH_C80x25 }, 596 { M_VGA_M90x50, M_VGA_M80x25 }, 597 { M_VGA_C90x50, M_VGA_C80x25 }, 598 { M_VGA_M90x60, M_VGA_M80x25 }, 599 { M_VGA_C90x60, M_VGA_C80x25 }, 600 #endif 601 { M_VGA_MODEX, M_VGA_CG320 }, 602 }; 603 int i; 604 605 for (i = 0; i < nitems(mode_map); ++i) { 606 if (mode_map[i].from == mode) 607 return mode_map[i].to; 608 } 609 return mode; 610 } 611 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 612 613 /* map a generic video mode to a known mode number */ 614 static int 615 map_gen_mode_num(int type, int color, int mode) 616 { 617 static struct { 618 int from; 619 int to_color; 620 int to_mono; 621 } mode_map[] = { 622 { M_TEXT_80x30, M_VGA_C80x30, M_VGA_M80x30, }, 623 { M_TEXT_80x43, M_ENH_C80x43, M_ENH_B80x43, }, 624 { M_TEXT_80x50, M_VGA_C80x50, M_VGA_M80x50, }, 625 { M_TEXT_80x60, M_VGA_C80x60, M_VGA_M80x60, }, 626 }; 627 int i; 628 629 if (mode == M_TEXT_80x25) { 630 switch (type) { 631 632 case KD_VGA: 633 if (color) 634 return M_VGA_C80x25; 635 else 636 return M_VGA_M80x25; 637 break; 638 639 case KD_EGA: 640 if (color) 641 return M_ENH_C80x25; 642 else 643 return M_EGAMONO80x25; 644 break; 645 646 case KD_CGA: 647 return M_C80x25; 648 649 case KD_MONO: 650 case KD_HERCULES: 651 return M_EGAMONO80x25; /* XXX: this name is confusing */ 652 653 default: 654 return -1; 655 } 656 } 657 658 for (i = 0; i < nitems(mode_map); ++i) { 659 if (mode_map[i].from == mode) 660 return ((color) ? mode_map[i].to_color : mode_map[i].to_mono); 661 } 662 return mode; 663 } 664 665 /* turn the BIOS video number into our video mode number */ 666 static int 667 map_bios_mode_num(int type, int color, int bios_mode) 668 { 669 static int cga_modes[7] = { 670 M_B40x25, M_C40x25, /* 0, 1 */ 671 M_B80x25, M_C80x25, /* 2, 3 */ 672 M_BG320, M_CG320, 673 M_BG640, 674 }; 675 static int ega_modes[17] = { 676 M_ENH_B40x25, M_ENH_C40x25, /* 0, 1 */ 677 M_ENH_B80x25, M_ENH_C80x25, /* 2, 3 */ 678 M_BG320, M_CG320, 679 M_BG640, 680 M_EGAMONO80x25, /* 7 */ 681 8, 9, 10, 11, 12, 682 M_CG320_D, 683 M_CG640_E, 684 M_ENHMONOAPA2, /* XXX: video momery > 64K */ 685 M_ENH_CG640, /* XXX: video momery > 64K */ 686 }; 687 static int vga_modes[20] = { 688 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */ 689 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */ 690 M_BG320, M_CG320, 691 M_BG640, 692 M_VGA_M80x25, /* 7 */ 693 8, 9, 10, 11, 12, 694 M_CG320_D, 695 M_CG640_E, 696 M_ENHMONOAPA2, 697 M_ENH_CG640, 698 M_BG640x480, M_CG640x480, 699 M_VGA_CG320, 700 }; 701 702 switch (type) { 703 704 case KD_VGA: 705 if (bios_mode < nitems(vga_modes)) 706 return vga_modes[bios_mode]; 707 else if (color) 708 return M_VGA_C80x25; 709 else 710 return M_VGA_M80x25; 711 break; 712 713 case KD_EGA: 714 if (bios_mode < nitems(ega_modes)) 715 return ega_modes[bios_mode]; 716 else if (color) 717 return M_ENH_C80x25; 718 else 719 return M_EGAMONO80x25; 720 break; 721 722 case KD_CGA: 723 if (bios_mode < nitems(cga_modes)) 724 return cga_modes[bios_mode]; 725 else 726 return M_C80x25; 727 break; 728 729 case KD_MONO: 730 case KD_HERCULES: 731 return M_EGAMONO80x25; /* XXX: this name is confusing */ 732 733 default: 734 break; 735 } 736 return -1; 737 } 738 739 /* look up a parameter table entry */ 740 static u_char 741 *get_mode_param(int mode) 742 { 743 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 744 if (mode >= V_MODE_MAP_SIZE) 745 mode = map_mode_num(mode); 746 #endif 747 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE)) 748 return mode_map[mode]; 749 else 750 return NULL; 751 } 752 753 #ifndef VGA_NO_BIOS 754 static void 755 fill_adapter_param(int code, video_adapter_t *adp) 756 { 757 static struct { 758 int primary; 759 int secondary; 760 } dcc[] = { 761 { DCC_MONO, DCC_EGA40 /* CGA monitor */ }, 762 { DCC_MONO, DCC_EGA80 /* CGA monitor */ }, 763 { DCC_MONO, DCC_EGA80 }, 764 { DCC_MONO, DCC_EGA80 }, 765 { DCC_CGA40, DCC_EGAMONO }, 766 { DCC_CGA80, DCC_EGAMONO }, 767 { DCC_EGA40 /* CGA monitor */, DCC_MONO}, 768 { DCC_EGA80 /* CGA monitor */, DCC_MONO}, 769 { DCC_EGA80, DCC_MONO }, 770 { DCC_EGA80, DCC_MONO }, 771 { DCC_EGAMONO, DCC_CGA40 }, 772 { DCC_EGAMONO, DCC_CGA80 }, 773 }; 774 775 if ((code < 0) || (code >= nitems(dcc))) { 776 adp[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 777 adp[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 778 } else { 779 adp[V_ADP_PRIMARY] = adapter_init_value[dcc[code].primary]; 780 adp[V_ADP_SECONDARY] = adapter_init_value[dcc[code].secondary]; 781 } 782 } 783 #endif /* VGA_NO_BIOS */ 784 785 static int 786 verify_adapter(video_adapter_t *adp) 787 { 788 vm_offset_t buf; 789 u_int16_t v; 790 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 791 u_int32_t p; 792 #endif 793 794 buf = BIOS_PADDRTOVADDR(adp->va_window); 795 v = readw(buf); 796 writew(buf, 0xA55A); 797 if (readw(buf) != 0xA55A) 798 return ENXIO; 799 writew(buf, v); 800 801 switch (adp->va_type) { 802 803 case KD_EGA: 804 outb(adp->va_crtc_addr, 7); 805 if (inb(adp->va_crtc_addr) == 7) { 806 adp->va_type = KD_VGA; 807 adp->va_name = "vga"; 808 adp->va_flags |= V_ADP_STATESAVE | V_ADP_PALETTE; 809 } 810 adp->va_flags |= V_ADP_STATELOAD | V_ADP_BORDER; 811 /* the color adapter may be in the 40x25 mode... XXX */ 812 813 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 814 /* get the BIOS video mode pointer */ 815 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8); 816 p = BIOS_SADDRTOLADDR(p); 817 if (ISMAPPED(p, sizeof(u_int32_t))) { 818 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p); 819 p = BIOS_SADDRTOLADDR(p); 820 if (ISMAPPED(p, V_MODE_PARAM_SIZE)) 821 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p); 822 } 823 #endif 824 break; 825 826 case KD_CGA: 827 adp->va_flags |= V_ADP_COLOR | V_ADP_BORDER; 828 /* may be in the 40x25 mode... XXX */ 829 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 830 /* get the BIOS video mode pointer */ 831 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 832 p = BIOS_SADDRTOLADDR(p); 833 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 834 #endif 835 break; 836 837 case KD_MONO: 838 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 839 /* get the BIOS video mode pointer */ 840 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 841 p = BIOS_SADDRTOLADDR(p); 842 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 843 #endif 844 break; 845 } 846 847 return 0; 848 } 849 850 static void 851 update_adapter_info(video_adapter_t *adp, video_info_t *info) 852 { 853 adp->va_flags &= ~V_ADP_COLOR; 854 adp->va_flags |= 855 (info->vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; 856 adp->va_crtc_addr = 857 (adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; 858 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window); 859 adp->va_window_size = info->vi_window_size; 860 adp->va_window_gran = info->vi_window_gran; 861 adp->va_window_orig = 0; 862 /* XXX */ 863 adp->va_buffer = info->vi_buffer; 864 adp->va_buffer_size = info->vi_buffer_size; 865 adp->va_flags &= ~V_ADP_CWIDTH9; 866 if (info->vi_flags & V_INFO_CWIDTH9) 867 adp->va_flags |= V_ADP_CWIDTH9; 868 if (info->vi_mem_model == V_INFO_MM_VGAX) { 869 adp->va_line_width = info->vi_width/2; 870 } else if (info->vi_flags & V_INFO_GRAPHICS) { 871 switch (info->vi_depth/info->vi_planes) { 872 case 1: 873 adp->va_line_width = info->vi_width/8; 874 break; 875 case 2: 876 adp->va_line_width = info->vi_width/4; 877 break; 878 case 4: 879 adp->va_line_width = info->vi_width/2; 880 break; 881 case 8: 882 default: /* shouldn't happen */ 883 adp->va_line_width = info->vi_width; 884 break; 885 } 886 } else { 887 adp->va_line_width = info->vi_width; 888 } 889 adp->va_disp_start.x = 0; 890 adp->va_disp_start.y = 0; 891 bcopy(info, &adp->va_info, sizeof(adp->va_info)); 892 } 893 894 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 895 /* compare two parameter table entries */ 896 static int 897 comp_adpregs(u_char *buf1, u_char *buf2) 898 { 899 static struct { 900 u_char mask; 901 } params[V_MODE_PARAM_SIZE] = { 902 {0xff}, {0x00}, {0xff}, /* COLS}, ROWS}, POINTS */ 903 {0x00}, {0x00}, /* page length */ 904 {0xfe}, {0xff}, {0xff}, {0xff}, /* sequencer registers */ 905 {0xf3}, /* misc register */ 906 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, /* CRTC */ 907 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, 908 {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, 909 {0x00}, {0xff}, {0x7f}, {0xff}, {0xff}, 910 {0x7f}, {0xff}, {0xff}, {0xef}, {0xff}, 911 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* attribute controller regs */ 912 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 913 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 914 {0xff}, {0xff}, {0xff}, {0xff}, {0xf0}, 915 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* GDC register */ 916 {0xff}, {0xff}, {0xff}, {0xff}, 917 }; 918 int identical = TRUE; 919 int i; 920 921 if ((buf1 == NULL) || (buf2 == NULL)) 922 return COMP_DIFFERENT; 923 924 for (i = 0; i < nitems(params); ++i) { 925 if (params[i].mask == 0) /* don't care */ 926 continue; 927 if ((buf1[i] & params[i].mask) != (buf2[i] & params[i].mask)) 928 return COMP_DIFFERENT; 929 if (buf1[i] != buf2[i]) 930 identical = FALSE; 931 } 932 return (identical) ? COMP_IDENTICAL : COMP_SIMILAR; 933 } 934 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 935 936 /* probe video adapters and return the number of detected adapters */ 937 static int 938 probe_adapters(void) 939 { 940 video_adapter_t *adp; 941 video_info_t info; 942 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 943 u_char *mp; 944 #endif 945 int height, i, width; 946 947 /* do this test only once */ 948 if (vga_init_done) 949 return biosadapters; 950 vga_init_done = TRUE; 951 952 /* 953 * Locate display adapters. 954 * The AT architecture supports up to two adapters. `syscons' allows 955 * the following combinations of adapters: 956 * 1) MDA + CGA 957 * 2) MDA + EGA/VGA color 958 * 3) CGA + EGA/VGA mono 959 * Note that `syscons' doesn't bother with MCGA as it is only 960 * avaiable for low end PS/2 models which has 80286 or earlier CPUs, 961 * thus, they are not running FreeBSD! 962 * When there are two adapaters in the system, one becomes `primary' 963 * and the other `secondary'. The EGA adapter has a set of DIP 964 * switches on board for this information and the EGA BIOS copies 965 * it in the BIOS data area BIOSDATA_VIDEOSWITCH (40:88). 966 * The VGA BIOS has more sophisticated mechanism and has this 967 * information in BIOSDATA_DCCINDEX (40:8a), but it also maintains 968 * compatibility with the EGA BIOS by updating BIOSDATA_VIDEOSWITCH. 969 */ 970 971 /* 972 * Check rtc and BIOS data area. 973 * XXX: we don't use BIOSDATA_EQUIPMENT, since it is not a dead 974 * copy of RTC_EQUIPMENT. Bits 4 and 5 of ETC_EQUIPMENT are 975 * zeros for EGA and VGA. However, the EGA/VGA BIOS sets 976 * these bits in BIOSDATA_EQUIPMENT according to the monitor 977 * type detected. 978 */ 979 #ifndef VGA_NO_BIOS 980 if (*(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8)) { 981 /* EGA/VGA BIOS is present */ 982 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 983 biosadapter); 984 } else { 985 switch ((rtcin(RTC_EQUIPMENT) >> 4) & 3) { /* bit 4 and 5 */ 986 case 0: 987 /* EGA/VGA: shouldn't be happening */ 988 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 989 biosadapter); 990 break; 991 case 1: 992 /* CGA 40x25 */ 993 /* FIXME: switch to the 80x25 mode? XXX */ 994 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA40]; 995 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 996 break; 997 case 2: 998 /* CGA 80x25 */ 999 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA80]; 1000 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 1001 break; 1002 case 3: 1003 /* MDA */ 1004 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 1005 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 1006 break; 1007 } 1008 } 1009 #else 1010 /* assume EGA/VGA? XXX */ 1011 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_EGA80]; 1012 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 1013 #endif /* VGA_NO_BIOS */ 1014 1015 biosadapters = 0; 1016 if (verify_adapter(&biosadapter[V_ADP_SECONDARY]) == 0) { 1017 ++biosadapters; 1018 biosadapter[V_ADP_SECONDARY].va_flags |= V_ADP_PROBED; 1019 biosadapter[V_ADP_SECONDARY].va_mode = 1020 biosadapter[V_ADP_SECONDARY].va_initial_mode = 1021 map_bios_mode_num(biosadapter[V_ADP_SECONDARY].va_type, 1022 biosadapter[V_ADP_SECONDARY].va_flags 1023 & V_ADP_COLOR, 1024 biosadapter[V_ADP_SECONDARY].va_initial_bios_mode); 1025 } else { 1026 biosadapter[V_ADP_SECONDARY].va_type = -1; 1027 } 1028 if (verify_adapter(&biosadapter[V_ADP_PRIMARY]) == 0) { 1029 ++biosadapters; 1030 biosadapter[V_ADP_PRIMARY].va_flags |= V_ADP_PROBED; 1031 #ifndef VGA_NO_BIOS 1032 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 1033 readb(BIOS_PADDRTOVADDR(0x449)); 1034 #else 1035 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 3; /* XXX */ 1036 #endif 1037 biosadapter[V_ADP_PRIMARY].va_mode = 1038 biosadapter[V_ADP_PRIMARY].va_initial_mode = 1039 map_bios_mode_num(biosadapter[V_ADP_PRIMARY].va_type, 1040 biosadapter[V_ADP_PRIMARY].va_flags & V_ADP_COLOR, 1041 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode); 1042 } else { 1043 biosadapter[V_ADP_PRIMARY] = biosadapter[V_ADP_SECONDARY]; 1044 biosadapter[V_ADP_SECONDARY].va_type = -1; 1045 } 1046 if (biosadapters == 0) 1047 return biosadapters; 1048 biosadapter[V_ADP_PRIMARY].va_unit = V_ADP_PRIMARY; 1049 biosadapter[V_ADP_SECONDARY].va_unit = V_ADP_SECONDARY; 1050 1051 #if 0 /* we don't need these... */ 1052 fb_init_struct(&biosadapter[V_ADP_PRIMARY], ...); 1053 fb_init_struct(&biosadapter[V_ADP_SECONDARY], ...); 1054 #endif 1055 1056 #ifdef notyet 1057 /* 1058 * We cannot have two video adapter of the same type; there must be 1059 * only one of color or mono adapter, or one each of them. 1060 */ 1061 if (biosadapters > 1) { 1062 if (!((biosadapter[0].va_flags ^ biosadapter[1].va_flags) 1063 & V_ADP_COLOR)) 1064 /* we have two mono or color adapters!! */ 1065 return (biosadapters = 0); 1066 } 1067 #endif 1068 1069 /* 1070 * Ensure a zero start address. The registers are w/o 1071 * for old hardware so it's too hard to relocate the active screen 1072 * memory. 1073 * This must be done before vga_save_state() for VGA. 1074 */ 1075 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 12); 1076 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1077 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 13); 1078 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1079 1080 /* the video mode parameter table in EGA/VGA BIOS */ 1081 /* NOTE: there can be only one EGA/VGA, wheather color or mono, 1082 * recognized by the video BIOS. 1083 */ 1084 if ((biosadapter[V_ADP_PRIMARY].va_type == KD_EGA) || 1085 (biosadapter[V_ADP_PRIMARY].va_type == KD_VGA)) { 1086 adp = &biosadapter[V_ADP_PRIMARY]; 1087 } else if ((biosadapter[V_ADP_SECONDARY].va_type == KD_EGA) || 1088 (biosadapter[V_ADP_SECONDARY].va_type == KD_VGA)) { 1089 adp = &biosadapter[V_ADP_SECONDARY]; 1090 } else { 1091 adp = NULL; 1092 } 1093 bzero(mode_map, sizeof(mode_map)); 1094 if (adp != NULL) { 1095 if (adp->va_type == KD_VGA) { 1096 vga_save_state(adp, &adpstate, sizeof(adpstate)); 1097 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1098 mode_map[adp->va_initial_mode] = adpstate.regs; 1099 rows_offset = 1; 1100 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1101 if (video_mode_ptr == NULL) { 1102 mode_map[adp->va_initial_mode] = adpstate.regs; 1103 rows_offset = 1; 1104 } else { 1105 /* discard the table if we are not familiar with it... */ 1106 map_mode_table(mode_map, video_mode_ptr, M_VGA_CG320 + 1); 1107 mp = get_mode_param(adp->va_initial_mode); 1108 if (mp != NULL) 1109 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs)); 1110 switch (comp_adpregs(adpstate.regs, mp)) { 1111 case COMP_IDENTICAL: 1112 /* 1113 * OK, this parameter table looks reasonably familiar 1114 * to us... 1115 */ 1116 /* 1117 * This is a kludge for Toshiba DynaBook SS433 1118 * whose BIOS video mode table entry has the actual # 1119 * of rows at the offset 1; BIOSes from other 1120 * manufacturers store the # of rows - 1 there. XXX 1121 */ 1122 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1123 break; 1124 1125 case COMP_SIMILAR: 1126 /* 1127 * Not exactly the same, but similar enough to be 1128 * trusted. However, use the saved register values 1129 * for the initial mode and other modes which are 1130 * based on the initial mode. 1131 */ 1132 mode_map[adp->va_initial_mode] = adpstate.regs; 1133 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1134 adpstate.regs[1] -= rows_offset - 1; 1135 break; 1136 1137 case COMP_DIFFERENT: 1138 default: 1139 /* 1140 * Don't use the parameter table in the BIOS, since 1141 * even the BIOS doesn't use it for the initial mode. 1142 * Restrict the tweaked modes to (in practice) 80x50 1143 * from 80x25 with 400 scan lines, since the only safe 1144 * tweak is changing the characters from 8x16 to 8x8. 1145 */ 1146 video_mode_ptr = NULL; 1147 bzero(mode_map, sizeof(mode_map)); 1148 mode_map[adp->va_initial_mode] = adpstate.regs; 1149 rows_offset = 1; 1150 1151 width = height = -1; 1152 for (i = 0; i < nitems(bios_vmode); ++i) { 1153 if (bios_vmode[i].vi_mode == adp->va_initial_mode) { 1154 width = bios_vmode[i].vi_width; 1155 height = bios_vmode[i].vi_height; 1156 break; 1157 } 1158 } 1159 for (i = 0; i < nitems(bios_vmode); ++i) { 1160 if (bios_vmode[i].vi_mode != adp->va_initial_mode && 1161 map_mode_num(bios_vmode[i].vi_mode) == 1162 adp->va_initial_mode && 1163 (bios_vmode[i].vi_width != width || 1164 bios_vmode[i].vi_height != 2 * height)) { 1165 bios_vmode[i].vi_mode = NA; 1166 } 1167 } 1168 break; 1169 } 1170 } 1171 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1172 1173 #ifndef VGA_NO_MODE_CHANGE 1174 adp->va_flags |= V_ADP_MODECHANGE; 1175 #endif 1176 #ifndef VGA_NO_FONT_LOADING 1177 adp->va_flags |= V_ADP_FONT; 1178 #endif 1179 } else if (adp->va_type == KD_EGA) { 1180 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1181 rows_offset = 1; 1182 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1183 if (video_mode_ptr == NULL) { 1184 rows_offset = 1; 1185 } else { 1186 map_mode_table(mode_map, video_mode_ptr, M_ENH_C80x25 + 1); 1187 /* XXX how can one validate the EGA table... */ 1188 mp = get_mode_param(adp->va_initial_mode); 1189 if (mp != NULL) { 1190 adp->va_flags |= V_ADP_MODECHANGE; 1191 #ifndef VGA_NO_FONT_LOADING 1192 adp->va_flags |= V_ADP_FONT; 1193 #endif 1194 rows_offset = 1; 1195 } else { 1196 /* 1197 * This is serious. We will not be able to switch video 1198 * modes at all... 1199 */ 1200 video_mode_ptr = NULL; 1201 bzero(mode_map, sizeof(mode_map)); 1202 rows_offset = 1; 1203 } 1204 } 1205 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1206 } 1207 } 1208 1209 /* remove conflicting modes if we have more than one adapter */ 1210 if (biosadapters > 0) { 1211 for (i = 0; i < biosadapters; ++i) { 1212 if (!(biosadapter[i].va_flags & V_ADP_MODECHANGE)) 1213 continue; 1214 clear_mode_map(&biosadapter[i], mode_map, M_VGA_CG320 + 1, 1215 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1216 V_INFO_COLOR : 0); 1217 if ((biosadapter[i].va_type == KD_VGA) 1218 || (biosadapter[i].va_type == KD_EGA)) { 1219 biosadapter[i].va_io_base = 1220 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1221 IO_VGA : IO_MDA; 1222 biosadapter[i].va_io_size = 32; 1223 } 1224 } 1225 } 1226 1227 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 1228 /* 1229 * Attempt to determine the real character width for each mode. 9 wide 1230 * is supposed to be standard for EGA mono mode and most VGA text modes, 1231 * but some hardware doesn't support it, so dynamic configuration is 1232 * needed. Bit 0 in sequencer register 1 is supposed control the width 1233 * (set = 8), but this is unreliable too. Trust that 0 in the sequencer 1234 * bit means 9 wide after verifying that 9 is consistent with some CRTC 1235 * timing. The ratio (Horizontal Total) / (Horizontal Displayed) is 1236 * about 1.2 in all standard 9-wide modes and should be about 9/8 larger 1237 * again in similar 8-wide modes; in practice it is usually about 1.4 1238 * times larger. 1239 */ 1240 for (i = 0; i < nitems(bios_vmode); ++i) { 1241 if (bios_vmode[i].vi_mem_model == V_INFO_MM_TEXT && 1242 bios_vmode[i].vi_width != 90) { 1243 mp = get_mode_param(map_mode_num(bios_vmode[i].vi_mode)); 1244 if (mp != NULL && !(mp[5] & 1) && mp[10] <= mp[11] * 125 / 100) 1245 bios_vmode[i].vi_flags |= V_INFO_CWIDTH9; 1246 } 1247 } 1248 #endif 1249 1250 /* buffer address */ 1251 vga_get_info(&biosadapter[V_ADP_PRIMARY], 1252 biosadapter[V_ADP_PRIMARY].va_initial_mode, &info); 1253 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1254 update_adapter_info(&biosadapter[V_ADP_PRIMARY], &info); 1255 1256 if (biosadapters > 1) { 1257 vga_get_info(&biosadapter[V_ADP_SECONDARY], 1258 biosadapter[V_ADP_SECONDARY].va_initial_mode, &info); 1259 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1260 update_adapter_info(&biosadapter[V_ADP_SECONDARY], &info); 1261 } 1262 1263 /* 1264 * XXX: we should verify the following values for the primary adapter... 1265 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463); 1266 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02) 1267 * ? 0 : V_ADP_COLOR; 1268 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a); 1269 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484); 1270 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485); 1271 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c); 1272 */ 1273 1274 return biosadapters; 1275 } 1276 1277 /* set the scan line length in pixel */ 1278 static int 1279 set_line_length(video_adapter_t *adp, int pixel) 1280 { 1281 u_char *mp; 1282 int ppw; /* pixels per word */ 1283 int bpl; /* bytes per line */ 1284 int count; 1285 1286 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1287 return ENODEV; 1288 mp = get_mode_param(adp->va_mode); 1289 if (mp == NULL) 1290 return EINVAL; 1291 1292 switch (adp->va_info.vi_mem_model) { 1293 case V_INFO_MM_PLANAR: 1294 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1295 count = howmany(pixel, ppw)/2; 1296 bpl = (howmany(pixel, ppw)/2)*4; 1297 break; 1298 case V_INFO_MM_PACKED: 1299 count = (pixel + 7)/8; 1300 bpl = rounddown(pixel + 7, 8); 1301 break; 1302 case V_INFO_MM_TEXT: 1303 count = (pixel + 7)/8; /* columns */ 1304 bpl = (pixel + 7)/8; /* columns */ 1305 break; 1306 default: 1307 return ENODEV; 1308 } 1309 1310 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */ 1311 count *= 2; /* byte mode */ 1312 outb(adp->va_crtc_addr, 0x13); 1313 outb(adp->va_crtc_addr + 1, count); 1314 adp->va_line_width = bpl; 1315 1316 return 0; 1317 } 1318 1319 static int 1320 set_display_start(video_adapter_t *adp, int x, int y) 1321 { 1322 int off; /* byte offset (graphics mode)/word offset (text mode) */ 1323 int poff; /* pixel offset */ 1324 int roff; /* row offset */ 1325 int ppb; /* pixels per byte */ 1326 1327 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1328 x &= ~7; 1329 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) { 1330 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1331 off = y*adp->va_line_width + x/ppb; 1332 roff = 0; 1333 poff = x%ppb; 1334 } else { 1335 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1336 outb(TSIDX, 1); 1337 if (inb(TSREG) & 1) 1338 ppb = 9; 1339 else 1340 ppb = 8; 1341 } else { 1342 ppb = 8; 1343 } 1344 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb; 1345 roff = y%adp->va_info.vi_cheight; 1346 /* FIXME: is this correct? XXX */ 1347 if (ppb == 8) 1348 poff = x%ppb; 1349 else 1350 poff = (x + 8)%ppb; 1351 } 1352 1353 /* start address */ 1354 outb(adp->va_crtc_addr, 0xc); /* high */ 1355 outb(adp->va_crtc_addr + 1, off >> 8); 1356 outb(adp->va_crtc_addr, 0xd); /* low */ 1357 outb(adp->va_crtc_addr + 1, off & 0xff); 1358 1359 /* horizontal pel pan */ 1360 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1361 inb(adp->va_crtc_addr + 6); 1362 outb(ATC, 0x13 | 0x20); 1363 outb(ATC, poff); 1364 inb(adp->va_crtc_addr + 6); 1365 outb(ATC, 0x20); 1366 } 1367 1368 /* preset raw scan */ 1369 outb(adp->va_crtc_addr, 8); 1370 outb(adp->va_crtc_addr + 1, roff); 1371 1372 adp->va_disp_start.x = x; 1373 adp->va_disp_start.y = y; 1374 return 0; 1375 } 1376 1377 #ifndef VGA_NO_MODE_CHANGE 1378 #if defined(__i386__) || defined(__amd64__) /* XXX */ 1379 static void 1380 fill(int val, void *d, size_t size) 1381 { 1382 u_char *p = d; 1383 1384 while (size-- > 0) 1385 *p++ = val; 1386 } 1387 #endif /* __i386__ */ 1388 1389 static void 1390 filll_io(int val, vm_offset_t d, size_t size) 1391 { 1392 while (size-- > 0) { 1393 writel(d, val); 1394 d += sizeof(u_int32_t); 1395 } 1396 } 1397 #endif /* !VGA_NO_MODE_CHANGE */ 1398 1399 /* entry points */ 1400 1401 #if 0 1402 static int 1403 vga_nop(void) 1404 { 1405 return 0; 1406 } 1407 #endif 1408 1409 static int 1410 vga_error(void) 1411 { 1412 return ENODEV; 1413 } 1414 1415 static int 1416 vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 1417 { 1418 probe_adapters(); 1419 if (unit >= biosadapters) 1420 return ENXIO; 1421 1422 *adpp = &biosadapter[unit]; 1423 1424 return 0; 1425 } 1426 1427 static int 1428 vga_init(int unit, video_adapter_t *adp, int flags) 1429 { 1430 if ((unit >= biosadapters) || (adp == NULL) || !probe_done(adp)) 1431 return ENXIO; 1432 1433 if (!init_done(adp)) { 1434 /* nothing to do really... */ 1435 adp->va_flags |= V_ADP_INITIALIZED; 1436 } 1437 1438 if (!config_done(adp)) { 1439 if (vid_register(adp) < 0) 1440 return ENXIO; 1441 adp->va_flags |= V_ADP_REGISTERED; 1442 } 1443 if (vga_sub_configure != NULL) 1444 (*vga_sub_configure)(0); 1445 1446 return 0; 1447 } 1448 1449 /* 1450 * get_info(): 1451 * Return the video_info structure of the requested video mode. 1452 * 1453 * all adapters 1454 */ 1455 static int 1456 vga_get_info(video_adapter_t *adp, int mode, video_info_t *info) 1457 { 1458 int i; 1459 1460 if (!vga_init_done) 1461 return ENXIO; 1462 1463 mode = map_gen_mode_num(adp->va_type, adp->va_flags & V_ADP_COLOR, mode); 1464 #ifndef VGA_NO_MODE_CHANGE 1465 if (adp->va_flags & V_ADP_MODECHANGE) { 1466 /* 1467 * If the parameter table entry for this mode is not found, 1468 * the mode is not supported... 1469 */ 1470 if (get_mode_param(mode) == NULL) 1471 return EINVAL; 1472 } else 1473 #endif /* VGA_NO_MODE_CHANGE */ 1474 { 1475 /* 1476 * Even if we don't support video mode switching on this adapter, 1477 * the information on the initial (thus current) video mode 1478 * should be made available. 1479 */ 1480 if (mode != adp->va_initial_mode) 1481 return EINVAL; 1482 } 1483 1484 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1485 if (bios_vmode[i].vi_mode == NA) 1486 continue; 1487 if (mode == bios_vmode[i].vi_mode) { 1488 *info = bios_vmode[i]; 1489 /* XXX */ 1490 info->vi_buffer_size = info->vi_window_size*info->vi_planes; 1491 return 0; 1492 } 1493 } 1494 return EINVAL; 1495 } 1496 1497 /* 1498 * query_mode(): 1499 * Find a video mode matching the requested parameters. 1500 * Fields filled with 0 are considered "don't care" fields and 1501 * match any modes. 1502 * 1503 * all adapters 1504 */ 1505 static int 1506 vga_query_mode(video_adapter_t *adp, video_info_t *info) 1507 { 1508 int i; 1509 1510 if (!vga_init_done) 1511 return ENXIO; 1512 1513 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1514 if (bios_vmode[i].vi_mode == NA) 1515 continue; 1516 1517 if ((info->vi_width != 0) 1518 && (info->vi_width != bios_vmode[i].vi_width)) 1519 continue; 1520 if ((info->vi_height != 0) 1521 && (info->vi_height != bios_vmode[i].vi_height)) 1522 continue; 1523 if ((info->vi_cwidth != 0) 1524 && (info->vi_cwidth != bios_vmode[i].vi_cwidth)) 1525 continue; 1526 if ((info->vi_cheight != 0) 1527 && (info->vi_cheight != bios_vmode[i].vi_cheight)) 1528 continue; 1529 if ((info->vi_depth != 0) 1530 && (info->vi_depth != bios_vmode[i].vi_depth)) 1531 continue; 1532 if ((info->vi_planes != 0) 1533 && (info->vi_planes != bios_vmode[i].vi_planes)) 1534 continue; 1535 /* XXX: should check pixel format, memory model */ 1536 if ((info->vi_flags != 0) 1537 && (info->vi_flags != bios_vmode[i].vi_flags)) 1538 continue; 1539 1540 /* verify if this mode is supported on this adapter */ 1541 if (vga_get_info(adp, bios_vmode[i].vi_mode, info)) 1542 continue; 1543 return 0; 1544 } 1545 return ENODEV; 1546 } 1547 1548 /* 1549 * set_mode(): 1550 * Change the video mode. 1551 * 1552 * EGA/VGA 1553 */ 1554 1555 #ifndef VGA_NO_MODE_CHANGE 1556 #ifdef VGA_WIDTH90 1557 static void 1558 set_width90(adp_state_t *params) 1559 { 1560 /* 1561 * Based on code submitted by Kelly Yancey (kbyanc@freedomnet.com) 1562 * and alexv@sui.gda.itesm.mx. 1563 */ 1564 params->regs[5] |= 1; /* toggle 8 pixel wide fonts */ 1565 params->regs[10+0x0] = 0x6b; 1566 params->regs[10+0x1] = 0x59; 1567 params->regs[10+0x2] = 0x5a; 1568 params->regs[10+0x3] = 0x8e; 1569 params->regs[10+0x4] = 0x5e; 1570 params->regs[10+0x5] = 0x8a; 1571 params->regs[10+0x13] = 45; 1572 params->regs[35+0x13] = 0; 1573 } 1574 #endif /* VGA_WIDTH90 */ 1575 #endif /* !VGA_NO_MODE_CHANGE */ 1576 1577 static int 1578 vga_set_mode(video_adapter_t *adp, int mode) 1579 { 1580 #ifndef VGA_NO_MODE_CHANGE 1581 video_info_t info; 1582 adp_state_t params; 1583 1584 prologue(adp, V_ADP_MODECHANGE, ENODEV); 1585 1586 mode = map_gen_mode_num(adp->va_type, 1587 adp->va_flags & V_ADP_COLOR, mode); 1588 if (vga_get_info(adp, mode, &info)) 1589 return EINVAL; 1590 1591 #if VGA_DEBUG > 1 1592 printf("vga_set_mode(): setting mode %d\n", mode); 1593 #endif 1594 1595 params.sig = V_STATE_SIG; 1596 bcopy(get_mode_param(mode), params.regs, sizeof(params.regs)); 1597 1598 switch (mode) { 1599 #ifdef VGA_WIDTH90 1600 case M_VGA_C90x60: case M_VGA_M90x60: 1601 set_width90(¶ms); 1602 /* FALLTHROUGH */ 1603 #endif 1604 case M_VGA_C80x60: case M_VGA_M80x60: 1605 params.regs[2] = 0x08; 1606 params.regs[19] = 0x47; 1607 goto special_480l; 1608 1609 #ifdef VGA_WIDTH90 1610 case M_VGA_C90x30: case M_VGA_M90x30: 1611 set_width90(¶ms); 1612 /* FALLTHROUGH */ 1613 #endif 1614 case M_VGA_C80x30: case M_VGA_M80x30: 1615 params.regs[19] = 0x4f; 1616 special_480l: 1617 params.regs[9] |= 0xc0; 1618 params.regs[16] = 0x08; 1619 params.regs[17] = 0x3e; 1620 params.regs[26] = 0xea; 1621 params.regs[28] = 0xdf; 1622 params.regs[31] = 0xe7; 1623 params.regs[32] = 0x04; 1624 goto setup_mode; 1625 1626 #ifdef VGA_WIDTH90 1627 case M_VGA_C90x43: case M_VGA_M90x43: 1628 set_width90(¶ms); 1629 /* FALLTHROUGH */ 1630 #endif 1631 case M_ENH_C80x43: case M_ENH_B80x43: 1632 params.regs[28] = 87; 1633 goto special_80x50; 1634 1635 #ifdef VGA_WIDTH90 1636 case M_VGA_C90x50: case M_VGA_M90x50: 1637 set_width90(¶ms); 1638 /* FALLTHROUGH */ 1639 #endif 1640 case M_VGA_C80x50: case M_VGA_M80x50: 1641 special_80x50: 1642 params.regs[2] = 8; 1643 params.regs[19] = 7; 1644 goto setup_mode; 1645 1646 #ifdef VGA_WIDTH90 1647 case M_VGA_C90x25: case M_VGA_M90x25: 1648 set_width90(¶ms); 1649 /* FALLTHROUGH */ 1650 #endif 1651 case M_VGA_C40x25: case M_VGA_C80x25: 1652 case M_VGA_M80x25: 1653 case M_B40x25: case M_C40x25: 1654 case M_B80x25: case M_C80x25: 1655 case M_ENH_B40x25: case M_ENH_C40x25: 1656 case M_ENH_B80x25: case M_ENH_C80x25: 1657 case M_EGAMONO80x25: 1658 1659 setup_mode: 1660 vga_load_state(adp, ¶ms); 1661 break; 1662 1663 case M_VGA_MODEX: 1664 /* "unchain" the VGA mode */ 1665 params.regs[5-1+0x04] &= 0xf7; 1666 params.regs[5-1+0x04] |= 0x04; 1667 /* turn off doubleword mode */ 1668 params.regs[10+0x14] &= 0xbf; 1669 /* turn off word addressing */ 1670 params.regs[10+0x17] |= 0x40; 1671 /* set logical screen width */ 1672 params.regs[10+0x13] = 80; 1673 /* set 240 lines */ 1674 params.regs[10+0x11] = 0x2c; 1675 params.regs[10+0x06] = 0x0d; 1676 params.regs[10+0x07] = 0x3e; 1677 params.regs[10+0x10] = 0xea; 1678 params.regs[10+0x11] = 0xac; 1679 params.regs[10+0x12] = 0xdf; 1680 params.regs[10+0x15] = 0xe7; 1681 params.regs[10+0x16] = 0x06; 1682 /* set vertical sync polarity to reflect aspect ratio */ 1683 params.regs[9] = 0xe3; 1684 goto setup_grmode; 1685 1686 case M_BG320: case M_CG320: case M_BG640: 1687 case M_CG320_D: case M_CG640_E: 1688 case M_CG640x350: case M_ENH_CG640: 1689 case M_BG640x480: case M_CG640x480: case M_VGA_CG320: 1690 1691 setup_grmode: 1692 vga_load_state(adp, ¶ms); 1693 break; 1694 1695 default: 1696 return EINVAL; 1697 } 1698 1699 adp->va_mode = mode; 1700 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1701 update_adapter_info(adp, &info); 1702 1703 /* move hardware cursor out of the way */ 1704 vidd_set_hw_cursor(adp, -1, -1); 1705 1706 return 0; 1707 #else /* VGA_NO_MODE_CHANGE */ 1708 return ENODEV; 1709 #endif /* VGA_NO_MODE_CHANGE */ 1710 } 1711 1712 #ifndef VGA_NO_FONT_LOADING 1713 1714 static void 1715 set_font_mode(video_adapter_t *adp, u_char *buf) 1716 { 1717 u_char *mp; 1718 int s; 1719 1720 s = splhigh(); 1721 1722 /* save register values */ 1723 if (adp->va_type == KD_VGA) { 1724 outb(TSIDX, 0x02); buf[0] = inb(TSREG); 1725 outb(TSIDX, 0x04); buf[1] = inb(TSREG); 1726 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG); 1727 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG); 1728 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG); 1729 inb(adp->va_crtc_addr + 6); 1730 outb(ATC, 0x10); buf[5] = inb(ATC + 1); 1731 } else /* if (adp->va_type == KD_EGA) */ { 1732 /* 1733 * EGA cannot be read; copy parameters from the mode parameter 1734 * table. 1735 */ 1736 mp = get_mode_param(adp->va_mode); 1737 buf[0] = mp[5 + 0x02 - 1]; 1738 buf[1] = mp[5 + 0x04 - 1]; 1739 buf[2] = mp[55 + 0x04]; 1740 buf[3] = mp[55 + 0x05]; 1741 buf[4] = mp[55 + 0x06]; 1742 buf[5] = mp[35 + 0x10]; 1743 } 1744 1745 /* setup vga for loading fonts */ 1746 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1747 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01); 1748 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1749 outb(ATC, 0x20); /* enable palette */ 1750 1751 #ifdef VGA_SLOW_IOACCESS 1752 #ifdef VGA_ALT_SEQACCESS 1753 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1754 #endif 1755 outb(TSIDX, 0x02); outb(TSREG, 0x04); 1756 outb(TSIDX, 0x04); outb(TSREG, 0x07); 1757 #ifdef VGA_ALT_SEQACCESS 1758 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1759 #endif 1760 outb(GDCIDX, 0x04); outb(GDCREG, 0x02); 1761 outb(GDCIDX, 0x05); outb(GDCREG, 0x00); 1762 outb(GDCIDX, 0x06); outb(GDCREG, 0x04); 1763 #else /* VGA_SLOW_IOACCESS */ 1764 #ifdef VGA_ALT_SEQACCESS 1765 outw(TSIDX, 0x0100); 1766 #endif 1767 outw(TSIDX, 0x0402); 1768 outw(TSIDX, 0x0704); 1769 #ifdef VGA_ALT_SEQACCESS 1770 outw(TSIDX, 0x0300); 1771 #endif 1772 outw(GDCIDX, 0x0204); 1773 outw(GDCIDX, 0x0005); 1774 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */ 1775 #endif /* VGA_SLOW_IOACCESS */ 1776 1777 splx(s); 1778 } 1779 1780 static void 1781 set_normal_mode(video_adapter_t *adp, u_char *buf) 1782 { 1783 int s; 1784 1785 s = splhigh(); 1786 1787 /* setup vga for normal operation mode again */ 1788 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1789 outb(ATC, 0x10); outb(ATC, buf[5]); 1790 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1791 outb(ATC, 0x20); /* enable palette */ 1792 1793 #ifdef VGA_SLOW_IOACCESS 1794 #ifdef VGA_ALT_SEQACCESS 1795 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1796 #endif 1797 outb(TSIDX, 0x02); outb(TSREG, buf[0]); 1798 outb(TSIDX, 0x04); outb(TSREG, buf[1]); 1799 #ifdef VGA_ALT_SEQACCESS 1800 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1801 #endif 1802 outb(GDCIDX, 0x04); outb(GDCREG, buf[2]); 1803 outb(GDCIDX, 0x05); outb(GDCREG, buf[3]); 1804 if (adp->va_crtc_addr == MONO_CRTC) { 1805 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x08); 1806 } else { 1807 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x0c); 1808 } 1809 #else /* VGA_SLOW_IOACCESS */ 1810 #ifdef VGA_ALT_SEQACCESS 1811 outw(TSIDX, 0x0100); 1812 #endif 1813 outw(TSIDX, 0x0002 | (buf[0] << 8)); 1814 outw(TSIDX, 0x0004 | (buf[1] << 8)); 1815 #ifdef VGA_ALT_SEQACCESS 1816 outw(TSIDX, 0x0300); 1817 #endif 1818 outw(GDCIDX, 0x0004 | (buf[2] << 8)); 1819 outw(GDCIDX, 0x0005 | (buf[3] << 8)); 1820 if (adp->va_crtc_addr == MONO_CRTC) 1821 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x08)<<8)); 1822 else 1823 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8)); 1824 #endif /* VGA_SLOW_IOACCESS */ 1825 1826 splx(s); 1827 } 1828 1829 #endif /* VGA_NO_FONT_LOADING */ 1830 1831 /* 1832 * save_font(): 1833 * Read the font data in the requested font page from the video adapter. 1834 * 1835 * EGA/VGA 1836 */ 1837 static int 1838 vga_save_font(video_adapter_t *adp, int page, int fontsize, int fontwidth, 1839 u_char *data, int ch, int count) 1840 { 1841 #ifndef VGA_NO_FONT_LOADING 1842 u_char buf[PARAM_BUFSIZE]; 1843 vm_offset_t segment; 1844 int c; 1845 #ifdef VGA_ALT_SEQACCESS 1846 int s; 1847 u_char val = 0; 1848 #endif 1849 1850 prologue(adp, V_ADP_FONT, ENODEV); 1851 1852 if (fontsize < 14) { 1853 /* FONT_8 */ 1854 fontsize = 8; 1855 } else if (fontsize >= 32) { 1856 fontsize = 32; 1857 } else if (fontsize >= 16) { 1858 /* FONT_16 */ 1859 fontsize = 16; 1860 } else { 1861 /* FONT_14 */ 1862 fontsize = 14; 1863 } 1864 1865 if (page < 0 || page >= 8 || fontwidth != 8) 1866 return EINVAL; 1867 segment = FONT_BUF + 0x4000*page; 1868 if (page > 3) 1869 segment -= 0xe000; 1870 1871 #ifdef VGA_ALT_SEQACCESS 1872 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1873 s = splhigh(); 1874 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1875 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1876 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1877 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1878 splx(s); 1879 } 1880 #endif 1881 1882 set_font_mode(adp, buf); 1883 if (fontsize == 32) { 1884 bcopy_fromio((uintptr_t)segment + ch*32, data, fontsize*count); 1885 } else { 1886 for (c = ch; count > 0; ++c, --count) { 1887 bcopy_fromio((uintptr_t)segment + c*32, data, fontsize); 1888 data += fontsize; 1889 } 1890 } 1891 set_normal_mode(adp, buf); 1892 1893 #ifdef VGA_ALT_SEQACCESS 1894 if (adp->va_type == KD_VGA) { 1895 s = splhigh(); 1896 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1897 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1898 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1899 splx(s); 1900 } 1901 #endif 1902 1903 return 0; 1904 #else /* VGA_NO_FONT_LOADING */ 1905 return ENODEV; 1906 #endif /* VGA_NO_FONT_LOADING */ 1907 } 1908 1909 /* 1910 * load_font(): 1911 * Set the font data in the requested font page. 1912 * NOTE: it appears that some recent video adapters do not support 1913 * the font page other than 0... XXX 1914 * 1915 * EGA/VGA 1916 */ 1917 static int 1918 vga_load_font(video_adapter_t *adp, int page, int fontsize, int fontwidth, 1919 u_char *data, int ch, int count) 1920 { 1921 #ifndef VGA_NO_FONT_LOADING 1922 u_char buf[PARAM_BUFSIZE]; 1923 vm_offset_t segment; 1924 int c; 1925 #ifdef VGA_ALT_SEQACCESS 1926 int s; 1927 u_char val = 0; 1928 #endif 1929 1930 prologue(adp, V_ADP_FONT, ENODEV); 1931 1932 if (fontsize < 14) { 1933 /* FONT_8 */ 1934 fontsize = 8; 1935 } else if (fontsize >= 32) { 1936 fontsize = 32; 1937 } else if (fontsize >= 16) { 1938 /* FONT_16 */ 1939 fontsize = 16; 1940 } else { 1941 /* FONT_14 */ 1942 fontsize = 14; 1943 } 1944 1945 if (page < 0 || page >= 8 || fontwidth != 8) 1946 return EINVAL; 1947 segment = FONT_BUF + 0x4000*page; 1948 if (page > 3) 1949 segment -= 0xe000; 1950 1951 #ifdef VGA_ALT_SEQACCESS 1952 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1953 s = splhigh(); 1954 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1955 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1956 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1957 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1958 splx(s); 1959 } 1960 #endif 1961 1962 set_font_mode(adp, buf); 1963 if (fontsize == 32) { 1964 bcopy_toio(data, (uintptr_t)segment + ch*32, fontsize*count); 1965 } else { 1966 for (c = ch; count > 0; ++c, --count) { 1967 bcopy_toio(data, (uintptr_t)segment + c*32, fontsize); 1968 data += fontsize; 1969 } 1970 } 1971 set_normal_mode(adp, buf); 1972 1973 #ifdef VGA_ALT_SEQACCESS 1974 if (adp->va_type == KD_VGA) { 1975 s = splhigh(); 1976 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1977 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1978 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1979 splx(s); 1980 } 1981 #endif 1982 1983 return 0; 1984 #else /* VGA_NO_FONT_LOADING */ 1985 return ENODEV; 1986 #endif /* VGA_NO_FONT_LOADING */ 1987 } 1988 1989 /* 1990 * show_font(): 1991 * Activate the requested font page. 1992 * NOTE: it appears that some recent video adapters do not support 1993 * the font page other than 0... XXX 1994 * 1995 * EGA/VGA 1996 */ 1997 static int 1998 vga_show_font(video_adapter_t *adp, int page) 1999 { 2000 #ifndef VGA_NO_FONT_LOADING 2001 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f }; 2002 int s; 2003 2004 prologue(adp, V_ADP_FONT, ENODEV); 2005 if (page < 0 || page >= 8) 2006 return EINVAL; 2007 2008 s = splhigh(); 2009 outb(TSIDX, 0x03); outb(TSREG, cg[page]); 2010 splx(s); 2011 2012 return 0; 2013 #else /* VGA_NO_FONT_LOADING */ 2014 return ENODEV; 2015 #endif /* VGA_NO_FONT_LOADING */ 2016 } 2017 2018 /* 2019 * save_palette(): 2020 * Read DAC values. The values have expressed in 8 bits. 2021 * 2022 * VGA 2023 */ 2024 static int 2025 vga_save_palette(video_adapter_t *adp, u_char *palette) 2026 { 2027 int bits; 2028 int i; 2029 2030 prologue(adp, V_ADP_PALETTE, ENODEV); 2031 2032 /* 2033 * We store 8 bit values in the palette buffer, while the standard 2034 * VGA has 6 bit DAC . 2035 */ 2036 outb(PALRADR, 0x00); 2037 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; 2038 for (i = 0; i < 256*3; ++i) 2039 palette[i] = inb(PALDATA) << bits; 2040 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2041 return 0; 2042 } 2043 2044 static int 2045 vga_save_palette2(video_adapter_t *adp, int base, int count, 2046 u_char *r, u_char *g, u_char *b) 2047 { 2048 int bits; 2049 int i; 2050 2051 prologue(adp, V_ADP_PALETTE, ENODEV); 2052 2053 outb(PALRADR, base); 2054 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; 2055 for (i = 0; i < count; ++i) { 2056 r[i] = inb(PALDATA) << bits; 2057 g[i] = inb(PALDATA) << bits; 2058 b[i] = inb(PALDATA) << bits; 2059 } 2060 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2061 return 0; 2062 } 2063 2064 /* 2065 * load_palette(): 2066 * Set DAC values. 2067 * 2068 * VGA 2069 */ 2070 static int 2071 vga_load_palette(video_adapter_t *adp, u_char *palette) 2072 { 2073 int bits; 2074 int i; 2075 2076 prologue(adp, V_ADP_PALETTE, ENODEV); 2077 2078 outb(PIXMASK, 0xff); /* no pixelmask */ 2079 outb(PALWADR, 0x00); 2080 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; 2081 for (i = 0; i < 256*3; ++i) 2082 outb(PALDATA, palette[i] >> bits); 2083 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2084 outb(ATC, 0x20); /* enable palette */ 2085 return 0; 2086 } 2087 2088 static int 2089 vga_load_palette2(video_adapter_t *adp, int base, int count, 2090 u_char *r, u_char *g, u_char *b) 2091 { 2092 int bits; 2093 int i; 2094 2095 prologue(adp, V_ADP_PALETTE, ENODEV); 2096 2097 outb(PIXMASK, 0xff); /* no pixelmask */ 2098 outb(PALWADR, base); 2099 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 0 : 2; 2100 for (i = 0; i < count; ++i) { 2101 outb(PALDATA, r[i] >> bits); 2102 outb(PALDATA, g[i] >> bits); 2103 outb(PALDATA, b[i] >> bits); 2104 } 2105 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2106 outb(ATC, 0x20); /* enable palette */ 2107 return 0; 2108 } 2109 2110 /* 2111 * set_border(): 2112 * Change the border color. 2113 * 2114 * CGA/EGA/VGA 2115 */ 2116 static int 2117 vga_set_border(video_adapter_t *adp, int color) 2118 { 2119 prologue(adp, V_ADP_BORDER, ENODEV); 2120 2121 switch (adp->va_type) { 2122 case KD_EGA: 2123 case KD_VGA: 2124 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 2125 outb(ATC, 0x31); outb(ATC, color & 0xff); 2126 break; 2127 case KD_CGA: 2128 outb(adp->va_crtc_addr + 5, color & 0x0f); /* color select register */ 2129 break; 2130 case KD_MONO: 2131 case KD_HERCULES: 2132 default: 2133 break; 2134 } 2135 return 0; 2136 } 2137 2138 /* 2139 * save_state(): 2140 * Read video register values. 2141 * NOTE: this function only reads the standard EGA/VGA registers. 2142 * any extra/extended registers of SVGA adapters are not saved. 2143 * 2144 * VGA 2145 */ 2146 static int 2147 vga_save_state(video_adapter_t *adp, void *p, size_t size) 2148 { 2149 video_info_t info; 2150 u_char *buf; 2151 int crtc_addr; 2152 int i, j; 2153 int s; 2154 2155 if (size == 0) { 2156 /* return the required buffer size */ 2157 prologue(adp, V_ADP_STATESAVE, 0); 2158 return sizeof(adp_state_t); 2159 } else { 2160 prologue(adp, V_ADP_STATESAVE, ENODEV); 2161 if (size < sizeof(adp_state_t)) 2162 return EINVAL; 2163 } 2164 2165 ((adp_state_t *)p)->sig = V_STATE_SIG; 2166 buf = ((adp_state_t *)p)->regs; 2167 bzero(buf, V_MODE_PARAM_SIZE); 2168 crtc_addr = adp->va_crtc_addr; 2169 2170 s = splhigh(); 2171 2172 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2173 for (i = 0, j = 5; i < 4; i++) { 2174 outb(TSIDX, i + 1); 2175 buf[j++] = inb(TSREG); 2176 } 2177 buf[9] = inb(MISC + 10); /* dot-clock */ 2178 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2179 2180 for (i = 0, j = 10; i < 25; i++) { /* crtc */ 2181 outb(crtc_addr, i); 2182 buf[j++] = inb(crtc_addr + 1); 2183 } 2184 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */ 2185 inb(crtc_addr + 6); /* reset flip-flop */ 2186 outb(ATC, i); 2187 buf[j++] = inb(ATC + 1); 2188 } 2189 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */ 2190 outb(GDCIDX, i); 2191 buf[j++] = inb(GDCREG); 2192 } 2193 inb(crtc_addr + 6); /* reset flip-flop */ 2194 outb(ATC, 0x20); /* enable palette */ 2195 2196 splx(s); 2197 2198 #if 1 2199 if (vga_get_info(adp, adp->va_mode, &info) == 0) { 2200 if (info.vi_flags & V_INFO_GRAPHICS) { 2201 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */ 2202 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */ 2203 } else { 2204 buf[0] = info.vi_width; /* COLS */ 2205 buf[1] = info.vi_height - 1; /* ROWS */ 2206 } 2207 buf[2] = info.vi_cheight; /* POINTS */ 2208 } 2209 #else 2210 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */ 2211 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */ 2212 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */ 2213 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c)); 2214 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d)); 2215 #endif 2216 2217 return 0; 2218 } 2219 2220 /* 2221 * load_state(): 2222 * Set video registers at once. 2223 * NOTE: this function only updates the standard EGA/VGA registers. 2224 * any extra/extended registers of SVGA adapters are not changed. 2225 * 2226 * EGA/VGA 2227 */ 2228 static int 2229 vga_load_state(video_adapter_t *adp, void *p) 2230 { 2231 u_char *buf; 2232 int crtc_addr; 2233 int s; 2234 int i; 2235 2236 prologue(adp, V_ADP_STATELOAD, ENODEV); 2237 if (((adp_state_t *)p)->sig != V_STATE_SIG) 2238 return EINVAL; 2239 2240 buf = ((adp_state_t *)p)->regs; 2241 crtc_addr = adp->va_crtc_addr; 2242 2243 #if VGA_DEBUG > 1 2244 dump_buffer(buf, V_MODE_PARAM_SIZE); 2245 #endif 2246 2247 s = splhigh(); 2248 2249 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2250 for (i = 0; i < 4; ++i) { /* program sequencer */ 2251 outb(TSIDX, i + 1); 2252 outb(TSREG, buf[i + 5]); 2253 } 2254 outb(MISC, buf[9]); /* set dot-clock */ 2255 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2256 outb(crtc_addr, 0x11); 2257 outb(crtc_addr + 1, inb(crtc_addr + 1) & 0x7F); 2258 for (i = 0; i < 25; ++i) { /* program crtc */ 2259 outb(crtc_addr, i); 2260 outb(crtc_addr + 1, buf[i + 10]); 2261 } 2262 inb(crtc_addr+6); /* reset flip-flop */ 2263 for (i = 0; i < 20; ++i) { /* program attribute ctrl */ 2264 outb(ATC, i); 2265 outb(ATC, buf[i + 35]); 2266 } 2267 for (i = 0; i < 9; ++i) { /* program graph data ctrl */ 2268 outb(GDCIDX, i); 2269 outb(GDCREG, buf[i + 55]); 2270 } 2271 inb(crtc_addr + 6); /* reset flip-flop */ 2272 outb(ATC, 0x20); /* enable palette */ 2273 2274 #ifdef notyet /* a temporary workaround for kernel panic, XXX */ 2275 #ifndef VGA_NO_BIOS 2276 if (adp->va_unit == V_ADP_PRIMARY) { 2277 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */ 2278 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */ 2279 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */ 2280 #if 0 2281 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]); 2282 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]); 2283 #endif 2284 } 2285 #endif /* VGA_NO_BIOS */ 2286 #endif /* notyet */ 2287 2288 splx(s); 2289 return 0; 2290 } 2291 2292 /* 2293 * set_origin(): 2294 * Change the origin (window mapping) of the banked frame buffer. 2295 */ 2296 static int 2297 vga_set_origin(video_adapter_t *adp, off_t offset) 2298 { 2299 /* 2300 * The standard video modes do not require window mapping; 2301 * always return error. 2302 */ 2303 return ENODEV; 2304 } 2305 2306 /* 2307 * read_hw_cursor(): 2308 * Read the position of the hardware text cursor. 2309 * 2310 * all adapters 2311 */ 2312 static int 2313 vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 2314 { 2315 u_int16_t off; 2316 int s; 2317 2318 if (!vga_init_done) 2319 return ENXIO; 2320 2321 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2322 return ENODEV; 2323 2324 s = spltty(); 2325 outb(adp->va_crtc_addr, 14); 2326 off = inb(adp->va_crtc_addr + 1); 2327 outb(adp->va_crtc_addr, 15); 2328 off = (off << 8) | inb(adp->va_crtc_addr + 1); 2329 splx(s); 2330 2331 *row = off / adp->va_info.vi_width; 2332 *col = off % adp->va_info.vi_width; 2333 2334 return 0; 2335 } 2336 2337 /* 2338 * set_hw_cursor(): 2339 * Move the hardware text cursor. If col and row are both -1, 2340 * the cursor won't be shown. 2341 * 2342 * all adapters 2343 */ 2344 static int 2345 vga_set_hw_cursor(video_adapter_t *adp, int col, int row) 2346 { 2347 u_int16_t off; 2348 int s; 2349 2350 if (!vga_init_done) 2351 return ENXIO; 2352 2353 if ((col == -1) && (row == -1)) { 2354 off = -1; 2355 } else { 2356 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2357 return ENODEV; 2358 off = row*adp->va_info.vi_width + col; 2359 } 2360 2361 s = spltty(); 2362 outb(adp->va_crtc_addr, 14); 2363 outb(adp->va_crtc_addr + 1, off >> 8); 2364 outb(adp->va_crtc_addr, 15); 2365 outb(adp->va_crtc_addr + 1, off & 0x00ff); 2366 splx(s); 2367 2368 return 0; 2369 } 2370 2371 /* 2372 * set_hw_cursor_shape(): 2373 * Change the shape of the hardware text cursor. If the height is 2374 * zero or negative, the cursor won't be shown. 2375 * 2376 * all adapters 2377 */ 2378 static int 2379 vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 2380 int celsize, int blink) 2381 { 2382 int s; 2383 2384 if (!vga_init_done) 2385 return ENXIO; 2386 2387 s = spltty(); 2388 switch (adp->va_type) { 2389 case KD_VGA: 2390 case KD_CGA: 2391 case KD_MONO: 2392 case KD_HERCULES: 2393 default: 2394 if (height <= 0) { 2395 /* make the cursor invisible */ 2396 outb(adp->va_crtc_addr, 10); 2397 outb(adp->va_crtc_addr + 1, 32); 2398 outb(adp->va_crtc_addr, 11); 2399 outb(adp->va_crtc_addr + 1, 0); 2400 } else { 2401 outb(adp->va_crtc_addr, 10); 2402 outb(adp->va_crtc_addr + 1, celsize - base - height); 2403 outb(adp->va_crtc_addr, 11); 2404 outb(adp->va_crtc_addr + 1, celsize - base - 1); 2405 } 2406 break; 2407 case KD_EGA: 2408 if (height <= 0) { 2409 /* make the cursor invisible */ 2410 outb(adp->va_crtc_addr, 10); 2411 outb(adp->va_crtc_addr + 1, celsize); 2412 outb(adp->va_crtc_addr, 11); 2413 outb(adp->va_crtc_addr + 1, 0); 2414 } else { 2415 outb(adp->va_crtc_addr, 10); 2416 outb(adp->va_crtc_addr + 1, celsize - base - height); 2417 outb(adp->va_crtc_addr, 11); 2418 outb(adp->va_crtc_addr + 1, celsize - base); 2419 } 2420 break; 2421 } 2422 splx(s); 2423 2424 return 0; 2425 } 2426 2427 /* 2428 * blank_display() 2429 * Put the display in power save/power off mode. 2430 * 2431 * all adapters 2432 */ 2433 static int 2434 vga_blank_display(video_adapter_t *adp, int mode) 2435 { 2436 u_char val; 2437 int s; 2438 2439 s = splhigh(); 2440 switch (adp->va_type) { 2441 case KD_VGA: 2442 switch (mode) { 2443 case V_DISPLAY_SUSPEND: 2444 case V_DISPLAY_STAND_BY: 2445 outb(TSIDX, 0x01); 2446 val = inb(TSREG); 2447 outb(TSIDX, 0x01); 2448 outb(TSREG, val | 0x20); 2449 outb(adp->va_crtc_addr, 0x17); 2450 val = inb(adp->va_crtc_addr + 1); 2451 outb(adp->va_crtc_addr + 1, val & ~0x80); 2452 break; 2453 case V_DISPLAY_BLANK: 2454 outb(TSIDX, 0x01); 2455 val = inb(TSREG); 2456 outb(TSIDX, 0x01); 2457 outb(TSREG, val | 0x20); 2458 break; 2459 case V_DISPLAY_ON: 2460 outb(TSIDX, 0x01); 2461 val = inb(TSREG); 2462 outb(TSIDX, 0x01); 2463 outb(TSREG, val & 0xDF); 2464 outb(adp->va_crtc_addr, 0x17); 2465 val = inb(adp->va_crtc_addr + 1); 2466 outb(adp->va_crtc_addr + 1, val | 0x80); 2467 break; 2468 } 2469 break; 2470 2471 case KD_EGA: 2472 /* no support yet */ 2473 splx(s); 2474 return ENODEV; 2475 2476 case KD_CGA: 2477 switch (mode) { 2478 case V_DISPLAY_SUSPEND: 2479 case V_DISPLAY_STAND_BY: 2480 case V_DISPLAY_BLANK: 2481 outb(adp->va_crtc_addr + 4, 0x25); 2482 break; 2483 case V_DISPLAY_ON: 2484 outb(adp->va_crtc_addr + 4, 0x2d); 2485 break; 2486 } 2487 break; 2488 2489 case KD_MONO: 2490 case KD_HERCULES: 2491 switch (mode) { 2492 case V_DISPLAY_SUSPEND: 2493 case V_DISPLAY_STAND_BY: 2494 case V_DISPLAY_BLANK: 2495 outb(adp->va_crtc_addr + 4, 0x21); 2496 break; 2497 case V_DISPLAY_ON: 2498 outb(adp->va_crtc_addr + 4, 0x29); 2499 break; 2500 } 2501 break; 2502 default: 2503 break; 2504 } 2505 splx(s); 2506 2507 return 0; 2508 } 2509 2510 /* 2511 * mmap(): 2512 * Mmap frame buffer. 2513 * 2514 * all adapters 2515 */ 2516 static int 2517 vga_mmap_buf(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr, 2518 int prot, vm_memattr_t *memattr) 2519 { 2520 if (adp->va_info.vi_flags & V_INFO_LINEAR) 2521 return -1; 2522 2523 #if VGA_DEBUG > 0 2524 printf("vga_mmap_buf(): window:0x%jx, offset:0x%jx\n", 2525 (uintmax_t)adp->va_info.vi_window, (uintmax_t)offset); 2526 #endif 2527 2528 /* XXX: is this correct? */ 2529 if (offset > adp->va_window_size - PAGE_SIZE) 2530 return -1; 2531 2532 *paddr = adp->va_info.vi_window + offset; 2533 return 0; 2534 } 2535 2536 #ifndef VGA_NO_MODE_CHANGE 2537 2538 static void 2539 planar_fill(video_adapter_t *adp, int val) 2540 { 2541 int length; 2542 int at; /* position in the frame buffer */ 2543 int l; 2544 2545 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2546 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2547 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2548 outw(GDCIDX, 0xff08); /* bit mask */ 2549 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2550 at = 0; 2551 length = adp->va_line_width*adp->va_info.vi_height; 2552 while (length > 0) { 2553 l = imin(length, adp->va_window_size); 2554 vidd_set_win_org(adp, at); 2555 bzero_io(adp->va_window, l); 2556 length -= l; 2557 at += l; 2558 } 2559 outw(GDCIDX, 0x0000); /* set/reset */ 2560 outw(GDCIDX, 0x0001); /* set/reset enable */ 2561 } 2562 2563 static void 2564 packed_fill(video_adapter_t *adp, int val) 2565 { 2566 int length; 2567 int at; /* position in the frame buffer */ 2568 int l; 2569 2570 at = 0; 2571 length = adp->va_line_width*adp->va_info.vi_height; 2572 while (length > 0) { 2573 l = imin(length, adp->va_window_size); 2574 vidd_set_win_org(adp, at); 2575 fill_io(val, adp->va_window, l); 2576 length -= l; 2577 at += l; 2578 } 2579 } 2580 2581 static void 2582 direct_fill(video_adapter_t *adp, int val) 2583 { 2584 int length; 2585 int at; /* position in the frame buffer */ 2586 int l; 2587 2588 at = 0; 2589 length = adp->va_line_width*adp->va_info.vi_height; 2590 while (length > 0) { 2591 l = imin(length, adp->va_window_size); 2592 vidd_set_win_org(adp, at); 2593 switch (adp->va_info.vi_pixel_size) { 2594 case sizeof(u_int16_t): 2595 fillw_io(val, adp->va_window, l/sizeof(u_int16_t)); 2596 break; 2597 case 3: 2598 /* FIXME */ 2599 break; 2600 case sizeof(u_int32_t): 2601 filll_io(val, adp->va_window, l/sizeof(u_int32_t)); 2602 break; 2603 } 2604 length -= l; 2605 at += l; 2606 } 2607 } 2608 2609 static int 2610 vga_clear(video_adapter_t *adp) 2611 { 2612 switch (adp->va_info.vi_mem_model) { 2613 case V_INFO_MM_TEXT: 2614 /* do nothing? XXX */ 2615 break; 2616 case V_INFO_MM_PLANAR: 2617 planar_fill(adp, 0); 2618 break; 2619 case V_INFO_MM_PACKED: 2620 packed_fill(adp, 0); 2621 break; 2622 case V_INFO_MM_DIRECT: 2623 direct_fill(adp, 0); 2624 break; 2625 } 2626 return 0; 2627 } 2628 2629 #ifdef notyet 2630 static void 2631 planar_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2632 { 2633 int banksize; 2634 int bank; 2635 int pos; 2636 int offset; /* offset within window */ 2637 int bx; 2638 int l; 2639 2640 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2641 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2642 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2643 outw(GDCIDX, 0xff08); /* bit mask */ 2644 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2645 2646 banksize = adp->va_window_size; 2647 bank = -1; 2648 while (cy > 0) { 2649 pos = adp->va_line_width*y + x/8; 2650 if (bank != pos/banksize) { 2651 vidd_set_win_org(adp, pos); 2652 bank = pos/banksize; 2653 } 2654 offset = pos%banksize; 2655 bx = (x + cx)/8 - x/8; 2656 if (x % 8) { 2657 outw(GDCIDX, ((0xff00 >> (x % 8)) & 0xff00) | 0x08); 2658 writeb(adp->va_window + offset, 0); 2659 ++offset; 2660 --bx; 2661 if (offset >= banksize) { 2662 offset = 0; 2663 ++bank; /* next bank */ 2664 vidd_set_win_org(adp, bank*banksize); 2665 } 2666 outw(GDCIDX, 0xff08); /* bit mask */ 2667 } 2668 while (bx > 0) { 2669 l = imin(bx, banksize); 2670 bzero_io(adp->va_window + offset, l); 2671 offset += l; 2672 bx -= l; 2673 if (offset >= banksize) { 2674 offset = 0; 2675 ++bank; /* next bank */ 2676 vidd_set_win_org(adp, bank*banksize); 2677 } 2678 } 2679 if ((x + cx) % 8) { 2680 outw(GDCIDX, (~(0xff00 >> ((x + cx) % 8)) & 0xff00) | 0x08); 2681 writeb(adp->va_window + offset, 0); 2682 ++offset; 2683 if (offset >= banksize) { 2684 offset = 0; 2685 ++bank; /* next bank */ 2686 vidd_set_win_org(adp, bank*banksize); 2687 } 2688 outw(GDCIDX, 0xff08); /* bit mask */ 2689 } 2690 ++y; 2691 --cy; 2692 } 2693 2694 outw(GDCIDX, 0xff08); /* bit mask */ 2695 outw(GDCIDX, 0x0000); /* set/reset */ 2696 outw(GDCIDX, 0x0001); /* set/reset enable */ 2697 } 2698 2699 static void 2700 packed_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2701 { 2702 int banksize; 2703 int bank; 2704 int pos; 2705 int offset; /* offset within window */ 2706 int end; 2707 2708 banksize = adp->va_window_size; 2709 bank = -1; 2710 cx *= adp->va_info.vi_pixel_size; 2711 while (cy > 0) { 2712 pos = adp->va_line_width*y + x*adp->va_info.vi_pixel_size; 2713 if (bank != pos/banksize) { 2714 vidd_set_win_org(adp, pos); 2715 bank = pos/banksize; 2716 } 2717 offset = pos%banksize; 2718 end = imin(offset + cx, banksize); 2719 fill_io(val, adp->va_window + offset, 2720 (end - offset)/adp->va_info.vi_pixel_size); 2721 /* the line may cross the window boundary */ 2722 if (offset + cx > banksize) { 2723 ++bank; /* next bank */ 2724 vidd_set_win_org(adp, bank*banksize); 2725 end = offset + cx - banksize; 2726 fill_io(val, adp->va_window, end/adp->va_info.vi_pixel_size); 2727 } 2728 ++y; 2729 --cy; 2730 } 2731 } 2732 2733 static void 2734 direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2735 { 2736 int banksize; 2737 int bank; 2738 int pos; 2739 int offset; /* offset within window */ 2740 int end; 2741 2742 /* 2743 * XXX: the function assumes that banksize is a muliple of 2744 * sizeof(u_int16_t). 2745 */ 2746 banksize = adp->va_window_size; 2747 bank = -1; 2748 cx *= sizeof(u_int16_t); 2749 while (cy > 0) { 2750 pos = adp->va_line_width*y + x*sizeof(u_int16_t); 2751 if (bank != pos/banksize) { 2752 vidd_set_win_org(adp, pos); 2753 bank = pos/banksize; 2754 } 2755 offset = pos%banksize; 2756 end = imin(offset + cx, banksize); 2757 fillw_io(val, adp->va_window + offset, 2758 (end - offset)/sizeof(u_int16_t)); 2759 /* the line may cross the window boundary */ 2760 if (offset + cx > banksize) { 2761 ++bank; /* next bank */ 2762 vidd_set_win_org(adp, bank*banksize); 2763 end = offset + cx - banksize; 2764 fillw_io(val, adp->va_window, end/sizeof(u_int16_t)); 2765 } 2766 ++y; 2767 --cy; 2768 } 2769 } 2770 2771 static void 2772 direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2773 { 2774 int banksize; 2775 int bank; 2776 int pos; 2777 int offset; /* offset within window */ 2778 int end; 2779 int i; 2780 int j; 2781 u_int8_t b[3]; 2782 2783 b[0] = val & 0x0000ff; 2784 b[1] = (val >> 8) & 0x0000ff; 2785 b[2] = (val >> 16) & 0x0000ff; 2786 banksize = adp->va_window_size; 2787 bank = -1; 2788 cx *= 3; 2789 while (cy > 0) { 2790 pos = adp->va_line_width*y + x*3; 2791 if (bank != pos/banksize) { 2792 vidd_set_win_org(adp, pos); 2793 bank = pos/banksize; 2794 } 2795 offset = pos%banksize; 2796 end = imin(offset + cx, banksize); 2797 for (i = 0, j = offset; j < end; i = (++i)%3, ++j) { 2798 writeb(adp->va_window + j, b[i]); 2799 } 2800 /* the line may cross the window boundary */ 2801 if (offset + cx >= banksize) { 2802 ++bank; /* next bank */ 2803 vidd_set_win_org(adp, bank*banksize); 2804 j = 0; 2805 end = offset + cx - banksize; 2806 for (; j < end; i = (++i)%3, ++j) { 2807 writeb(adp->va_window + j, b[i]); 2808 } 2809 } 2810 ++y; 2811 --cy; 2812 } 2813 } 2814 2815 static void 2816 direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2817 { 2818 int banksize; 2819 int bank; 2820 int pos; 2821 int offset; /* offset within window */ 2822 int end; 2823 2824 /* 2825 * XXX: the function assumes that banksize is a muliple of 2826 * sizeof(u_int32_t). 2827 */ 2828 banksize = adp->va_window_size; 2829 bank = -1; 2830 cx *= sizeof(u_int32_t); 2831 while (cy > 0) { 2832 pos = adp->va_line_width*y + x*sizeof(u_int32_t); 2833 if (bank != pos/banksize) { 2834 vidd_set_win_org(adp, pos); 2835 bank = pos/banksize; 2836 } 2837 offset = pos%banksize; 2838 end = imin(offset + cx, banksize); 2839 filll_io(val, adp->va_window + offset, 2840 (end - offset)/sizeof(u_int32_t)); 2841 /* the line may cross the window boundary */ 2842 if (offset + cx > banksize) { 2843 ++bank; /* next bank */ 2844 vidd_set_win_org(adp, bank*banksize); 2845 end = offset + cx - banksize; 2846 filll_io(val, adp->va_window, end/sizeof(u_int32_t)); 2847 } 2848 ++y; 2849 --cy; 2850 } 2851 } 2852 2853 static int 2854 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2855 { 2856 switch (adp->va_info.vi_mem_model) { 2857 case V_INFO_MM_TEXT: 2858 /* do nothing? XXX */ 2859 break; 2860 case V_INFO_MM_PLANAR: 2861 planar_fill_rect(adp, val, x, y, cx, cy); 2862 break; 2863 case V_INFO_MM_PACKED: 2864 packed_fill_rect(adp, val, x, y, cx, cy); 2865 break; 2866 case V_INFO_MM_DIRECT: 2867 switch (adp->va_info.vi_pixel_size) { 2868 case sizeof(u_int16_t): 2869 direct_fill_rect16(adp, val, x, y, cx, cy); 2870 break; 2871 case 3: 2872 direct_fill_rect24(adp, val, x, y, cx, cy); 2873 break; 2874 case sizeof(u_int32_t): 2875 direct_fill_rect32(adp, val, x, y, cx, cy); 2876 break; 2877 } 2878 break; 2879 } 2880 return 0; 2881 } 2882 #else /* !notyet */ 2883 static int 2884 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2885 { 2886 return ENODEV; 2887 } 2888 #endif /* notyet */ 2889 2890 static int 2891 vga_bitblt(video_adapter_t *adp,...) 2892 { 2893 /* FIXME */ 2894 return ENODEV; 2895 } 2896 2897 #endif /* !VGA_NO_MODE_CHANGE */ 2898 2899 static int 2900 get_palette(video_adapter_t *adp, int base, int count, 2901 u_char *red, u_char *green, u_char *blue, u_char *trans) 2902 { 2903 u_char *r; 2904 u_char *g; 2905 u_char *b; 2906 2907 if (count < 0 || base < 0 || count > 256 || base > 256 || 2908 base + count > 256) 2909 return EINVAL; 2910 2911 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2912 g = r + count; 2913 b = g + count; 2914 if (vga_save_palette2(adp, base, count, r, g, b)) { 2915 free(r, M_DEVBUF); 2916 return ENODEV; 2917 } 2918 copyout(r, red, count); 2919 copyout(g, green, count); 2920 copyout(b, blue, count); 2921 if (trans != NULL) { 2922 bzero(r, count); 2923 copyout(r, trans, count); 2924 } 2925 free(r, M_DEVBUF); 2926 2927 return 0; 2928 } 2929 2930 static int 2931 set_palette(video_adapter_t *adp, int base, int count, 2932 u_char *red, u_char *green, u_char *blue, u_char *trans) 2933 { 2934 u_char *r; 2935 u_char *g; 2936 u_char *b; 2937 int err; 2938 2939 if (count < 0 || base < 0 || count > 256 || base > 256 || 2940 base + count > 256) 2941 return EINVAL; 2942 2943 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2944 g = r + count; 2945 b = g + count; 2946 err = copyin(red, r, count); 2947 if (!err) 2948 err = copyin(green, g, count); 2949 if (!err) 2950 err = copyin(blue, b, count); 2951 if (!err) 2952 err = vga_load_palette2(adp, base, count, r, g, b); 2953 free(r, M_DEVBUF); 2954 2955 return (err ? ENODEV : 0); 2956 } 2957 2958 static int 2959 vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 2960 { 2961 switch (cmd) { 2962 case FBIO_GETWINORG: /* get frame buffer window origin */ 2963 *(u_int *)arg = 0; 2964 return 0; 2965 2966 case FBIO_SETWINORG: /* set frame buffer window origin */ 2967 return ENODEV; 2968 2969 case FBIO_SETDISPSTART: /* set display start address */ 2970 return (set_display_start(adp, 2971 ((video_display_start_t *)arg)->x, 2972 ((video_display_start_t *)arg)->y) 2973 ? ENODEV : 0); 2974 2975 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */ 2976 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0); 2977 2978 case FBIO_GETPALETTE: /* get color palette */ 2979 return get_palette(adp, ((video_color_palette_t *)arg)->index, 2980 ((video_color_palette_t *)arg)->count, 2981 ((video_color_palette_t *)arg)->red, 2982 ((video_color_palette_t *)arg)->green, 2983 ((video_color_palette_t *)arg)->blue, 2984 ((video_color_palette_t *)arg)->transparent); 2985 2986 case FBIO_SETPALETTE: /* set color palette */ 2987 return set_palette(adp, ((video_color_palette_t *)arg)->index, 2988 ((video_color_palette_t *)arg)->count, 2989 ((video_color_palette_t *)arg)->red, 2990 ((video_color_palette_t *)arg)->green, 2991 ((video_color_palette_t *)arg)->blue, 2992 ((video_color_palette_t *)arg)->transparent); 2993 2994 case FBIOGTYPE: /* get frame buffer type info. */ 2995 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type); 2996 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height; 2997 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width; 2998 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth; 2999 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8)) 3000 ((struct fbtype *)arg)->fb_cmsize = 0; 3001 else 3002 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth; 3003 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size; 3004 return 0; 3005 3006 case FBIOGETCMAP: /* get color palette */ 3007 return get_palette(adp, ((struct fbcmap *)arg)->index, 3008 ((struct fbcmap *)arg)->count, 3009 ((struct fbcmap *)arg)->red, 3010 ((struct fbcmap *)arg)->green, 3011 ((struct fbcmap *)arg)->blue, NULL); 3012 3013 case FBIOPUTCMAP: /* set color palette */ 3014 return set_palette(adp, ((struct fbcmap *)arg)->index, 3015 ((struct fbcmap *)arg)->count, 3016 ((struct fbcmap *)arg)->red, 3017 ((struct fbcmap *)arg)->green, 3018 ((struct fbcmap *)arg)->blue, NULL); 3019 3020 default: 3021 return fb_commonioctl(adp, cmd, arg); 3022 } 3023 } 3024 3025 static void 3026 dump_buffer(u_char *buf, size_t len) 3027 { 3028 int i; 3029 3030 for(i = 0; i < len;) { 3031 printf("%02x ", buf[i]); 3032 if ((++i % 16) == 0) 3033 printf("\n"); 3034 } 3035 } 3036 3037 /* 3038 * diag(): 3039 * Print some information about the video adapter and video modes, 3040 * with requested level of details. 3041 * 3042 * all adapters 3043 */ 3044 static int 3045 vga_diag(video_adapter_t *adp, int level) 3046 { 3047 u_char *mp; 3048 #if FB_DEBUG > 1 3049 video_info_t info; 3050 int i; 3051 #endif 3052 3053 if (!vga_init_done) 3054 return ENXIO; 3055 3056 #if FB_DEBUG > 1 3057 #ifndef VGA_NO_BIOS 3058 printf("vga: RTC equip. code:0x%02x, DCC code:0x%02x\n", 3059 rtcin(RTC_EQUIPMENT), readb(BIOS_PADDRTOVADDR(0x488))); 3060 printf("vga: CRTC:0x%x, video option:0x%02x, ", 3061 readw(BIOS_PADDRTOVADDR(0x463)), 3062 readb(BIOS_PADDRTOVADDR(0x487))); 3063 printf("rows:%d, cols:%d, font height:%d\n", 3064 readb(BIOS_PADDRTOVADDR(0x44a)), 3065 readb(BIOS_PADDRTOVADDR(0x484)) + 1, 3066 readb(BIOS_PADDRTOVADDR(0x485))); 3067 #endif /* VGA_NO_BIOS */ 3068 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 3069 printf("vga: param table EGA/VGA:%p", video_mode_ptr); 3070 printf(", CGA/MDA:%p\n", video_mode_ptr2); 3071 printf("vga: rows_offset:%d\n", rows_offset); 3072 #endif 3073 #endif /* FB_DEBUG > 1 */ 3074 3075 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level); 3076 3077 #if FB_DEBUG > 1 3078 if (adp->va_flags & V_ADP_MODECHANGE) { 3079 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 3080 if (bios_vmode[i].vi_mode == NA) 3081 continue; 3082 if (get_mode_param(bios_vmode[i].vi_mode) == NULL) 3083 continue; 3084 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level); 3085 } 3086 } else { 3087 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */ 3088 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level); 3089 } 3090 #endif /* FB_DEBUG > 1 */ 3091 3092 if ((adp->va_type != KD_EGA) && (adp->va_type != KD_VGA)) 3093 return 0; 3094 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 3095 if (video_mode_ptr == NULL) 3096 printf("vga%d: %s: WARNING: video mode switching is not " 3097 "fully supported on this adapter\n", 3098 adp->va_unit, adp->va_name); 3099 #endif 3100 if (level <= 0) 3101 return 0; 3102 3103 if (adp->va_type == KD_VGA) { 3104 printf("VGA parameters upon power-up\n"); 3105 dump_buffer(adpstate.regs, sizeof(adpstate.regs)); 3106 printf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode); 3107 dump_buffer(adpstate2.regs, sizeof(adpstate2.regs)); 3108 } 3109 3110 mp = get_mode_param(adp->va_initial_mode); 3111 if (mp == NULL) /* this shouldn't be happening */ 3112 return 0; 3113 printf("EGA/VGA parameters to be used for mode %d\n", adp->va_initial_mode); 3114 dump_buffer(mp, V_MODE_PARAM_SIZE); 3115 3116 return 0; 3117 } 3118