1 /*- 2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 3 * Copyright (c) 1992-1998 S�ren Schmidt 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer as 11 * the first lines of this file unmodified. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 #include "opt_vga.h" 33 #include "opt_fb.h" 34 #include "opt_syscons.h" /* should be removed in the future, XXX */ 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/kernel.h> 39 #include <sys/conf.h> 40 #include <sys/fcntl.h> 41 #include <sys/malloc.h> 42 #include <sys/fbio.h> 43 44 #include <vm/vm.h> 45 #include <vm/vm_param.h> 46 #include <vm/pmap.h> 47 48 #include <machine/md_var.h> 49 #include <machine/pc/bios.h> 50 #include <machine/bus.h> 51 52 #include <dev/fb/fbreg.h> 53 #include <dev/fb/vgareg.h> 54 55 #include <isa/isareg.h> 56 57 #ifndef VGA_DEBUG 58 #define VGA_DEBUG 0 59 #endif 60 61 int 62 vga_probe_unit(int unit, video_adapter_t *buf, int flags) 63 { 64 video_adapter_t *adp; 65 video_switch_t *sw; 66 int error; 67 68 sw = vid_get_switch(VGA_DRIVER_NAME); 69 if (sw == NULL) 70 return 0; 71 error = (*sw->probe)(unit, &adp, NULL, flags); 72 if (error) 73 return error; 74 bcopy(adp, buf, sizeof(*buf)); 75 return 0; 76 } 77 78 int 79 vga_attach_unit(int unit, vga_softc_t *sc, int flags) 80 { 81 video_switch_t *sw; 82 int error; 83 84 sw = vid_get_switch(VGA_DRIVER_NAME); 85 if (sw == NULL) 86 return ENXIO; 87 88 error = (*sw->probe)(unit, &sc->adp, NULL, flags); 89 if (error) 90 return error; 91 return (*sw->init)(unit, sc->adp, flags); 92 } 93 94 /* cdev driver functions */ 95 96 #ifdef FB_INSTALL_CDEV 97 98 int 99 vga_open(dev_t dev, vga_softc_t *sc, int flag, int mode, struct thread *td) 100 { 101 if (sc == NULL) 102 return ENXIO; 103 if (mode & (O_CREAT | O_APPEND | O_TRUNC)) 104 return ENODEV; 105 106 return genfbopen(&sc->gensc, sc->adp, flag, mode, td); 107 } 108 109 int 110 vga_close(dev_t dev, vga_softc_t *sc, int flag, int mode, struct thread *td) 111 { 112 return genfbclose(&sc->gensc, sc->adp, flag, mode, td); 113 } 114 115 int 116 vga_read(dev_t dev, vga_softc_t *sc, struct uio *uio, int flag) 117 { 118 return genfbread(&sc->gensc, sc->adp, uio, flag); 119 } 120 121 int 122 vga_write(dev_t dev, vga_softc_t *sc, struct uio *uio, int flag) 123 { 124 return genfbread(&sc->gensc, sc->adp, uio, flag); 125 } 126 127 int 128 vga_ioctl(dev_t dev, vga_softc_t *sc, u_long cmd, caddr_t arg, int flag, 129 struct thread *td) 130 { 131 return genfbioctl(&sc->gensc, sc->adp, cmd, arg, flag, td); 132 } 133 134 int 135 vga_mmap(dev_t dev, vga_softc_t *sc, vm_offset_t offset, int prot) 136 { 137 return genfbmmap(&sc->gensc, sc->adp, offset, prot); 138 } 139 140 #endif /* FB_INSTALL_CDEV */ 141 142 /* LOW-LEVEL */ 143 144 #include <machine/clock.h> 145 #include <machine/pc/vesa.h> 146 147 #define probe_done(adp) ((adp)->va_flags & V_ADP_PROBED) 148 #define init_done(adp) ((adp)->va_flags & V_ADP_INITIALIZED) 149 #define config_done(adp) ((adp)->va_flags & V_ADP_REGISTERED) 150 151 /* for compatibility with old kernel options */ 152 #ifdef SC_ALT_SEQACCESS 153 #undef SC_ALT_SEQACCESS 154 #undef VGA_ALT_SEQACCESS 155 #define VGA_ALT_SEQACCESS 1 156 #endif 157 158 #ifdef SLOW_VGA 159 #undef SLOW_VGA 160 #undef VGA_SLOW_IOACCESS 161 #define VGA_SLOW_IOACCESS 1 162 #endif 163 164 /* architecture dependent option */ 165 #if defined(__alpha__) || defined(__ia64__) 166 #define VGA_NO_BIOS 1 167 #endif 168 169 /* this should really be in `rtc.h' */ 170 #define RTC_EQUIPMENT 0x14 171 172 /* various sizes */ 173 #define V_MODE_MAP_SIZE (M_VGA_CG320 + 1) 174 #define V_MODE_PARAM_SIZE 64 175 176 /* video adapter state buffer */ 177 struct adp_state { 178 int sig; 179 #define V_STATE_SIG 0x736f6962 180 u_char regs[V_MODE_PARAM_SIZE]; 181 }; 182 typedef struct adp_state adp_state_t; 183 184 /* video adapter information */ 185 #define DCC_MONO 0 186 #define DCC_CGA40 1 187 #define DCC_CGA80 2 188 #define DCC_EGAMONO 3 189 #define DCC_EGA40 4 190 #define DCC_EGA80 5 191 192 /* 193 * NOTE: `va_window' should have a virtual address, but is initialized 194 * with a physical address in the following table, as verify_adapter() 195 * will perform address conversion at run-time. 196 */ 197 static video_adapter_t adapter_init_value[] = { 198 /* DCC_MONO */ 199 { 0, KD_MONO, "mda", 0, 0, 0, IO_MDA, IO_MDASIZE, MONO_CRTC, 200 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 201 0, 0, 0, 0, 7, 0, }, 202 /* DCC_CGA40 */ 203 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 204 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 205 0, 0, 0, 0, 3, 0, }, 206 /* DCC_CGA80 */ 207 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 208 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 209 0, 0, 0, 0, 3, 0, }, 210 /* DCC_EGAMONO */ 211 { 0, KD_EGA, "ega", 0, 0, 0, IO_MDA, 48, MONO_CRTC, 212 EGA_BUF_BASE, EGA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 213 0, 0, 0, 0, 7, 0, }, 214 /* DCC_EGA40 */ 215 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 216 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 217 0, 0, 0, 0, 3, 0, }, 218 /* DCC_EGA80 */ 219 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 220 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 221 0, 0, 0, 0, 3, 0, }, 222 }; 223 224 static video_adapter_t biosadapter[2]; 225 static int biosadapters = 0; 226 227 /* video driver declarations */ 228 static int vga_configure(int flags); 229 int (*vga_sub_configure)(int flags); 230 #if 0 231 static int vga_nop(void); 232 #endif 233 static int vga_error(void); 234 static vi_probe_t vga_probe; 235 static vi_init_t vga_init; 236 static vi_get_info_t vga_get_info; 237 static vi_query_mode_t vga_query_mode; 238 static vi_set_mode_t vga_set_mode; 239 static vi_save_font_t vga_save_font; 240 static vi_load_font_t vga_load_font; 241 static vi_show_font_t vga_show_font; 242 static vi_save_palette_t vga_save_palette; 243 static vi_load_palette_t vga_load_palette; 244 static vi_set_border_t vga_set_border; 245 static vi_save_state_t vga_save_state; 246 static vi_load_state_t vga_load_state; 247 static vi_set_win_org_t vga_set_origin; 248 static vi_read_hw_cursor_t vga_read_hw_cursor; 249 static vi_set_hw_cursor_t vga_set_hw_cursor; 250 static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape; 251 static vi_blank_display_t vga_blank_display; 252 static vi_mmap_t vga_mmap_buf; 253 static vi_ioctl_t vga_dev_ioctl; 254 #ifndef VGA_NO_MODE_CHANGE 255 static vi_clear_t vga_clear; 256 static vi_fill_rect_t vga_fill_rect; 257 static vi_bitblt_t vga_bitblt; 258 #else /* VGA_NO_MODE_CHANGE */ 259 #define vga_clear (vi_clear_t *)vga_error 260 #define vga_fill_rect (vi_fill_rect_t *)vga_error 261 #define vga_bitblt (vi_bitblt_t *)vga_error 262 #endif 263 static vi_diag_t vga_diag; 264 265 static video_switch_t vgavidsw = { 266 vga_probe, 267 vga_init, 268 vga_get_info, 269 vga_query_mode, 270 vga_set_mode, 271 vga_save_font, 272 vga_load_font, 273 vga_show_font, 274 vga_save_palette, 275 vga_load_palette, 276 vga_set_border, 277 vga_save_state, 278 vga_load_state, 279 vga_set_origin, 280 vga_read_hw_cursor, 281 vga_set_hw_cursor, 282 vga_set_hw_cursor_shape, 283 vga_blank_display, 284 vga_mmap_buf, 285 vga_dev_ioctl, 286 vga_clear, 287 vga_fill_rect, 288 vga_bitblt, 289 vga_error, 290 vga_error, 291 vga_diag, 292 }; 293 294 VIDEO_DRIVER(mda, vgavidsw, NULL); 295 VIDEO_DRIVER(cga, vgavidsw, NULL); 296 VIDEO_DRIVER(ega, vgavidsw, NULL); 297 VIDEO_DRIVER(vga, vgavidsw, vga_configure); 298 299 /* VGA BIOS standard video modes */ 300 #define EOT (-1) 301 #define NA (-2) 302 303 static video_info_t bios_vmode[] = { 304 /* CGA */ 305 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1, 306 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 307 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1, 308 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 309 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1, 310 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 311 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1, 312 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 313 /* EGA */ 314 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1, 315 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 316 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1, 317 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 318 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1, 319 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 320 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1, 321 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 322 /* VGA */ 323 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1, 324 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 325 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1, 326 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 327 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1, 328 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 329 /* MDA */ 330 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1, 331 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 332 /* EGA */ 333 { M_ENH_B80x43, 0, 80, 43, 8, 8, 2, 1, 334 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 335 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1, 336 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 337 /* VGA */ 338 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1, 339 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 340 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1, 341 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 342 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1, 343 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 344 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1, 345 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 346 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1, 347 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 348 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1, 349 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 350 351 #ifndef VGA_NO_MODE_CHANGE 352 353 #ifdef VGA_WIDTH90 354 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1, 355 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 356 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1, 357 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 358 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1, 359 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 360 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1, 361 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 362 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1, 363 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 364 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1, 365 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 366 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1, 367 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 368 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1, 369 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 370 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1, 371 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 372 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1, 373 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 374 #endif /* VGA_WIDTH90 */ 375 376 /* CGA */ 377 { M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 378 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 379 { M_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 380 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 381 { M_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1, 382 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 383 /* EGA */ 384 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4, 385 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 386 V_INFO_MM_PLANAR }, 387 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4, 388 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 389 V_INFO_MM_PLANAR }, 390 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 391 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 , 392 V_INFO_MM_PLANAR }, 393 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 394 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 395 V_INFO_MM_PLANAR }, 396 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2, 397 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 398 V_INFO_MM_PLANAR }, 399 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 400 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 401 V_INFO_MM_PLANAR }, 402 /* VGA */ 403 { M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 404 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 405 V_INFO_MM_PLANAR }, 406 { M_CG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 407 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 408 V_INFO_MM_PLANAR }, 409 { M_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1, 410 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 411 V_INFO_MM_PACKED, 1 }, 412 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 4, 413 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 414 V_INFO_MM_VGAX, 1 }, 415 #endif /* VGA_NO_MODE_CHANGE */ 416 417 { EOT }, 418 }; 419 420 static int vga_init_done = FALSE; 421 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 422 static u_char *video_mode_ptr = NULL; /* EGA/VGA */ 423 static u_char *video_mode_ptr2 = NULL; /* CGA/MDA */ 424 #endif 425 static u_char *mode_map[V_MODE_MAP_SIZE]; 426 static adp_state_t adpstate; 427 static adp_state_t adpstate2; 428 static int rows_offset = 1; 429 430 /* local macros and functions */ 431 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 432 433 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 434 static void map_mode_table(u_char *map[], u_char *table, int max); 435 #endif 436 static void clear_mode_map(video_adapter_t *adp, u_char *map[], int max, 437 int color); 438 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 439 static int map_mode_num(int mode); 440 #endif 441 static int map_gen_mode_num(int type, int color, int mode); 442 static int map_bios_mode_num(int type, int color, int bios_mode); 443 static u_char *get_mode_param(int mode); 444 #ifndef VGA_NO_BIOS 445 static void fill_adapter_param(int code, video_adapter_t *adp); 446 #endif 447 static int verify_adapter(video_adapter_t *adp); 448 static void update_adapter_info(video_adapter_t *adp, video_info_t *info); 449 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 450 #define COMP_IDENTICAL 0 451 #define COMP_SIMILAR 1 452 #define COMP_DIFFERENT 2 453 static int comp_adpregs(u_char *buf1, u_char *buf2); 454 #endif 455 static int probe_adapters(void); 456 static int set_line_length(video_adapter_t *adp, int pixel); 457 static int set_display_start(video_adapter_t *adp, int x, int y); 458 static void filll_io(int val, vm_offset_t d, size_t size); 459 460 #ifndef VGA_NO_MODE_CHANGE 461 #ifdef VGA_WIDTH90 462 static void set_width90(adp_state_t *params); 463 #endif 464 #endif /* !VGA_NO_MODE_CHANGE */ 465 466 #ifndef VGA_NO_FONT_LOADING 467 #define PARAM_BUFSIZE 6 468 static void set_font_mode(video_adapter_t *adp, u_char *buf); 469 static void set_normal_mode(video_adapter_t *adp, u_char *buf); 470 #endif 471 472 #ifndef VGA_NO_MODE_CHANGE 473 static void planar_fill(video_adapter_t *adp, int val); 474 static void packed_fill(video_adapter_t *adp, int val); 475 static void direct_fill(video_adapter_t *adp, int val); 476 #ifdef notyet 477 static void planar_fill_rect(video_adapter_t *adp, int val, int x, int y, 478 int cx, int cy); 479 static void packed_fill_rect(video_adapter_t *adp, int val, int x, int y, 480 int cx, int cy); 481 static void direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, 482 int cx, int cy); 483 static void direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, 484 int cx, int cy); 485 static void direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, 486 int cx, int cy); 487 #endif /* notyet */ 488 #endif /* !VGA_NO_MODE_CHANGE */ 489 490 static void dump_buffer(u_char *buf, size_t len); 491 492 #define ISMAPPED(pa, width) \ 493 (((pa) <= (u_long)0x1000 - (width)) \ 494 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width))) 495 496 #define prologue(adp, flag, err) \ 497 if (!vga_init_done || !((adp)->va_flags & (flag))) \ 498 return (err) 499 500 /* a backdoor for the console driver */ 501 static int 502 vga_configure(int flags) 503 { 504 int i; 505 506 probe_adapters(); 507 for (i = 0; i < biosadapters; ++i) { 508 if (!probe_done(&biosadapter[i])) 509 continue; 510 biosadapter[i].va_flags |= V_ADP_INITIALIZED; 511 if (!config_done(&biosadapter[i])) { 512 if (vid_register(&biosadapter[i]) < 0) 513 continue; 514 biosadapter[i].va_flags |= V_ADP_REGISTERED; 515 } 516 } 517 if (vga_sub_configure != NULL) 518 (*vga_sub_configure)(flags); 519 520 return biosadapters; 521 } 522 523 /* local subroutines */ 524 525 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 526 /* construct the mode parameter map */ 527 static void 528 map_mode_table(u_char *map[], u_char *table, int max) 529 { 530 int i; 531 532 for(i = 0; i < max; ++i) 533 map[i] = table + i*V_MODE_PARAM_SIZE; 534 for(; i < V_MODE_MAP_SIZE; ++i) 535 map[i] = NULL; 536 } 537 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 538 539 static void 540 clear_mode_map(video_adapter_t *adp, u_char *map[], int max, int color) 541 { 542 video_info_t info; 543 int i; 544 545 /* 546 * NOTE: we don't touch `bios_vmode[]' because it is shared 547 * by all adapters. 548 */ 549 for(i = 0; i < max; ++i) { 550 if (vga_get_info(adp, i, &info)) 551 continue; 552 if ((info.vi_flags & V_INFO_COLOR) != color) 553 map[i] = NULL; 554 } 555 } 556 557 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 558 /* map the non-standard video mode to a known mode number */ 559 static int 560 map_mode_num(int mode) 561 { 562 static struct { 563 int from; 564 int to; 565 } mode_map[] = { 566 { M_ENH_B80x43, M_ENH_B80x25 }, 567 { M_ENH_C80x43, M_ENH_C80x25 }, 568 { M_VGA_M80x30, M_VGA_M80x25 }, 569 { M_VGA_C80x30, M_VGA_C80x25 }, 570 { M_VGA_M80x50, M_VGA_M80x25 }, 571 { M_VGA_C80x50, M_VGA_C80x25 }, 572 { M_VGA_M80x60, M_VGA_M80x25 }, 573 { M_VGA_C80x60, M_VGA_C80x25 }, 574 #ifdef VGA_WIDTH90 575 { M_VGA_M90x25, M_VGA_M80x25 }, 576 { M_VGA_C90x25, M_VGA_C80x25 }, 577 { M_VGA_M90x30, M_VGA_M80x25 }, 578 { M_VGA_C90x30, M_VGA_C80x25 }, 579 { M_VGA_M90x43, M_ENH_B80x25 }, 580 { M_VGA_C90x43, M_ENH_C80x25 }, 581 { M_VGA_M90x50, M_VGA_M80x25 }, 582 { M_VGA_C90x50, M_VGA_C80x25 }, 583 { M_VGA_M90x60, M_VGA_M80x25 }, 584 { M_VGA_C90x60, M_VGA_C80x25 }, 585 #endif 586 { M_VGA_MODEX, M_VGA_CG320 }, 587 }; 588 int i; 589 590 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 591 if (mode_map[i].from == mode) 592 return mode_map[i].to; 593 } 594 return mode; 595 } 596 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 597 598 /* map a generic video mode to a known mode number */ 599 static int 600 map_gen_mode_num(int type, int color, int mode) 601 { 602 static struct { 603 int from; 604 int to_color; 605 int to_mono; 606 } mode_map[] = { 607 { M_TEXT_80x30, M_VGA_C80x30, M_VGA_M80x30, }, 608 { M_TEXT_80x43, M_ENH_C80x43, M_ENH_B80x43, }, 609 { M_TEXT_80x50, M_VGA_C80x50, M_VGA_M80x50, }, 610 { M_TEXT_80x60, M_VGA_C80x60, M_VGA_M80x60, }, 611 }; 612 int i; 613 614 if (mode == M_TEXT_80x25) { 615 switch (type) { 616 617 case KD_VGA: 618 if (color) 619 return M_VGA_C80x25; 620 else 621 return M_VGA_M80x25; 622 break; 623 624 case KD_EGA: 625 if (color) 626 return M_ENH_C80x25; 627 else 628 return M_EGAMONO80x25; 629 break; 630 631 case KD_CGA: 632 return M_C80x25; 633 634 case KD_MONO: 635 case KD_HERCULES: 636 return M_EGAMONO80x25; /* XXX: this name is confusing */ 637 638 default: 639 return -1; 640 } 641 } 642 643 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 644 if (mode_map[i].from == mode) 645 return ((color) ? mode_map[i].to_color : mode_map[i].to_mono); 646 } 647 return mode; 648 } 649 650 /* turn the BIOS video number into our video mode number */ 651 static int 652 map_bios_mode_num(int type, int color, int bios_mode) 653 { 654 static int cga_modes[7] = { 655 M_B40x25, M_C40x25, /* 0, 1 */ 656 M_B80x25, M_C80x25, /* 2, 3 */ 657 M_BG320, M_CG320, 658 M_BG640, 659 }; 660 static int ega_modes[17] = { 661 M_ENH_B40x25, M_ENH_C40x25, /* 0, 1 */ 662 M_ENH_B80x25, M_ENH_C80x25, /* 2, 3 */ 663 M_BG320, M_CG320, 664 M_BG640, 665 M_EGAMONO80x25, /* 7 */ 666 8, 9, 10, 11, 12, 667 M_CG320_D, 668 M_CG640_E, 669 M_ENHMONOAPA2, /* XXX: video momery > 64K */ 670 M_ENH_CG640, /* XXX: video momery > 64K */ 671 }; 672 static int vga_modes[20] = { 673 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */ 674 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */ 675 M_BG320, M_CG320, 676 M_BG640, 677 M_VGA_M80x25, /* 7 */ 678 8, 9, 10, 11, 12, 679 M_CG320_D, 680 M_CG640_E, 681 M_ENHMONOAPA2, 682 M_ENH_CG640, 683 M_BG640x480, M_CG640x480, 684 M_VGA_CG320, 685 }; 686 687 switch (type) { 688 689 case KD_VGA: 690 if (bios_mode < sizeof(vga_modes)/sizeof(vga_modes[0])) 691 return vga_modes[bios_mode]; 692 else if (color) 693 return M_VGA_C80x25; 694 else 695 return M_VGA_M80x25; 696 break; 697 698 case KD_EGA: 699 if (bios_mode < sizeof(ega_modes)/sizeof(ega_modes[0])) 700 return ega_modes[bios_mode]; 701 else if (color) 702 return M_ENH_C80x25; 703 else 704 return M_EGAMONO80x25; 705 break; 706 707 case KD_CGA: 708 if (bios_mode < sizeof(cga_modes)/sizeof(cga_modes[0])) 709 return cga_modes[bios_mode]; 710 else 711 return M_C80x25; 712 break; 713 714 case KD_MONO: 715 case KD_HERCULES: 716 return M_EGAMONO80x25; /* XXX: this name is confusing */ 717 718 default: 719 break; 720 } 721 return -1; 722 } 723 724 /* look up a parameter table entry */ 725 static u_char 726 *get_mode_param(int mode) 727 { 728 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 729 if (mode >= V_MODE_MAP_SIZE) 730 mode = map_mode_num(mode); 731 #endif 732 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE)) 733 return mode_map[mode]; 734 else 735 return NULL; 736 } 737 738 #ifndef VGA_NO_BIOS 739 static void 740 fill_adapter_param(int code, video_adapter_t *adp) 741 { 742 static struct { 743 int primary; 744 int secondary; 745 } dcc[] = { 746 { DCC_MONO, DCC_EGA40 /* CGA monitor */ }, 747 { DCC_MONO, DCC_EGA80 /* CGA monitor */ }, 748 { DCC_MONO, DCC_EGA80 }, 749 { DCC_MONO, DCC_EGA80 }, 750 { DCC_CGA40, DCC_EGAMONO }, 751 { DCC_CGA80, DCC_EGAMONO }, 752 { DCC_EGA40 /* CGA monitor */, DCC_MONO}, 753 { DCC_EGA80 /* CGA monitor */, DCC_MONO}, 754 { DCC_EGA80, DCC_MONO }, 755 { DCC_EGA80, DCC_MONO }, 756 { DCC_EGAMONO, DCC_CGA40 }, 757 { DCC_EGAMONO, DCC_CGA80 }, 758 }; 759 760 if ((code < 0) || (code >= sizeof(dcc)/sizeof(dcc[0]))) { 761 adp[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 762 adp[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 763 } else { 764 adp[V_ADP_PRIMARY] = adapter_init_value[dcc[code].primary]; 765 adp[V_ADP_SECONDARY] = adapter_init_value[dcc[code].secondary]; 766 } 767 } 768 #endif /* VGA_NO_BIOS */ 769 770 static int 771 verify_adapter(video_adapter_t *adp) 772 { 773 vm_offset_t buf; 774 u_int16_t v; 775 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 776 u_int32_t p; 777 #endif 778 779 buf = BIOS_PADDRTOVADDR(adp->va_window); 780 v = readw(buf); 781 writew(buf, 0xA55A); 782 if (readw(buf) != 0xA55A) 783 return ENXIO; 784 writew(buf, v); 785 786 switch (adp->va_type) { 787 788 case KD_EGA: 789 outb(adp->va_crtc_addr, 7); 790 if (inb(adp->va_crtc_addr) == 7) { 791 adp->va_type = KD_VGA; 792 adp->va_name = "vga"; 793 adp->va_flags |= V_ADP_STATESAVE | V_ADP_PALETTE; 794 } 795 adp->va_flags |= V_ADP_STATELOAD | V_ADP_BORDER; 796 /* the color adapter may be in the 40x25 mode... XXX */ 797 798 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 799 /* get the BIOS video mode pointer */ 800 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8); 801 p = BIOS_SADDRTOLADDR(p); 802 if (ISMAPPED(p, sizeof(u_int32_t))) { 803 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p); 804 p = BIOS_SADDRTOLADDR(p); 805 if (ISMAPPED(p, V_MODE_PARAM_SIZE)) 806 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p); 807 } 808 #endif 809 break; 810 811 case KD_CGA: 812 adp->va_flags |= V_ADP_COLOR | V_ADP_BORDER; 813 /* may be in the 40x25 mode... XXX */ 814 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 815 /* get the BIOS video mode pointer */ 816 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 817 p = BIOS_SADDRTOLADDR(p); 818 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 819 #endif 820 break; 821 822 case KD_MONO: 823 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 824 /* get the BIOS video mode pointer */ 825 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 826 p = BIOS_SADDRTOLADDR(p); 827 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 828 #endif 829 break; 830 } 831 832 return 0; 833 } 834 835 static void 836 update_adapter_info(video_adapter_t *adp, video_info_t *info) 837 { 838 adp->va_flags &= ~V_ADP_COLOR; 839 adp->va_flags |= 840 (info->vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; 841 adp->va_crtc_addr = 842 (adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; 843 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window); 844 adp->va_window_size = info->vi_window_size; 845 adp->va_window_gran = info->vi_window_gran; 846 adp->va_window_orig = 0; 847 /* XXX */ 848 adp->va_buffer = info->vi_buffer; 849 adp->va_buffer_size = info->vi_buffer_size; 850 if (info->vi_mem_model == V_INFO_MM_VGAX) { 851 adp->va_line_width = info->vi_width/2; 852 } else if (info->vi_flags & V_INFO_GRAPHICS) { 853 switch (info->vi_depth/info->vi_planes) { 854 case 1: 855 adp->va_line_width = info->vi_width/8; 856 break; 857 case 2: 858 adp->va_line_width = info->vi_width/4; 859 break; 860 case 4: 861 adp->va_line_width = info->vi_width/2; 862 break; 863 case 8: 864 default: /* shouldn't happen */ 865 adp->va_line_width = info->vi_width; 866 break; 867 } 868 } else { 869 adp->va_line_width = info->vi_width; 870 } 871 adp->va_disp_start.x = 0; 872 adp->va_disp_start.y = 0; 873 bcopy(info, &adp->va_info, sizeof(adp->va_info)); 874 } 875 876 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 877 /* compare two parameter table entries */ 878 static int 879 comp_adpregs(u_char *buf1, u_char *buf2) 880 { 881 static struct { 882 u_char mask; 883 } params[V_MODE_PARAM_SIZE] = { 884 {0xff}, {0x00}, {0xff}, /* COLS}, ROWS}, POINTS */ 885 {0x00}, {0x00}, /* page length */ 886 {0xfe}, {0xff}, {0xff}, {0xff}, /* sequencer registers */ 887 {0xf3}, /* misc register */ 888 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, /* CRTC */ 889 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, 890 {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, 891 {0x00}, {0xff}, {0x7f}, {0xff}, {0xff}, 892 {0x7f}, {0xff}, {0xff}, {0xef}, {0xff}, 893 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* attribute controller regs */ 894 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 895 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 896 {0xff}, {0xff}, {0xff}, {0xff}, {0xf0}, 897 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* GDC register */ 898 {0xff}, {0xff}, {0xff}, {0xff}, 899 }; 900 int identical = TRUE; 901 int i; 902 903 if ((buf1 == NULL) || (buf2 == NULL)) 904 return COMP_DIFFERENT; 905 906 for (i = 0; i < sizeof(params)/sizeof(params[0]); ++i) { 907 if (params[i].mask == 0) /* don't care */ 908 continue; 909 if ((buf1[i] & params[i].mask) != (buf2[i] & params[i].mask)) 910 return COMP_DIFFERENT; 911 if (buf1[i] != buf2[i]) 912 identical = FALSE; 913 } 914 return (identical) ? COMP_IDENTICAL : COMP_SIMILAR; 915 } 916 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 917 918 /* probe video adapters and return the number of detected adapters */ 919 static int 920 probe_adapters(void) 921 { 922 video_adapter_t *adp; 923 video_info_t info; 924 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 925 u_char *mp; 926 #endif 927 int i; 928 929 /* do this test only once */ 930 if (vga_init_done) 931 return biosadapters; 932 vga_init_done = TRUE; 933 934 /* 935 * Locate display adapters. 936 * The AT architecture supports upto two adapters. `syscons' allows 937 * the following combinations of adapters: 938 * 1) MDA + CGA 939 * 2) MDA + EGA/VGA color 940 * 3) CGA + EGA/VGA mono 941 * Note that `syscons' doesn't bother with MCGA as it is only 942 * avaiable for low end PS/2 models which has 80286 or earlier CPUs, 943 * thus, they are not running FreeBSD! 944 * When there are two adapaters in the system, one becomes `primary' 945 * and the other `secondary'. The EGA adapter has a set of DIP 946 * switches on board for this information and the EGA BIOS copies 947 * it in the BIOS data area BIOSDATA_VIDEOSWITCH (40:88). 948 * The VGA BIOS has more sophisticated mechanism and has this 949 * information in BIOSDATA_DCCINDEX (40:8a), but it also maintains 950 * compatibility with the EGA BIOS by updating BIOSDATA_VIDEOSWITCH. 951 */ 952 953 /* 954 * Check rtc and BIOS data area. 955 * XXX: we don't use BIOSDATA_EQUIPMENT, since it is not a dead 956 * copy of RTC_EQUIPMENT. Bits 4 and 5 of ETC_EQUIPMENT are 957 * zeros for EGA and VGA. However, the EGA/VGA BIOS sets 958 * these bits in BIOSDATA_EQUIPMENT according to the monitor 959 * type detected. 960 */ 961 #ifndef VGA_NO_BIOS 962 if (*(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8)) { 963 /* EGA/VGA BIOS is present */ 964 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 965 biosadapter); 966 } else { 967 switch ((rtcin(RTC_EQUIPMENT) >> 4) & 3) { /* bit 4 and 5 */ 968 case 0: 969 /* EGA/VGA: shouldn't be happening */ 970 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 971 biosadapter); 972 break; 973 case 1: 974 /* CGA 40x25 */ 975 /* FIXME: switch to the 80x25 mode? XXX */ 976 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA40]; 977 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 978 break; 979 case 2: 980 /* CGA 80x25 */ 981 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA80]; 982 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 983 break; 984 case 3: 985 /* MDA */ 986 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 987 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 988 break; 989 } 990 } 991 #else 992 /* assume EGA/VGA? XXX */ 993 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_EGA80]; 994 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 995 #endif /* VGA_NO_BIOS */ 996 997 biosadapters = 0; 998 if (verify_adapter(&biosadapter[V_ADP_SECONDARY]) == 0) { 999 ++biosadapters; 1000 biosadapter[V_ADP_SECONDARY].va_flags |= V_ADP_PROBED; 1001 biosadapter[V_ADP_SECONDARY].va_mode = 1002 biosadapter[V_ADP_SECONDARY].va_initial_mode = 1003 map_bios_mode_num(biosadapter[V_ADP_SECONDARY].va_type, 1004 biosadapter[V_ADP_SECONDARY].va_flags 1005 & V_ADP_COLOR, 1006 biosadapter[V_ADP_SECONDARY].va_initial_bios_mode); 1007 } else { 1008 biosadapter[V_ADP_SECONDARY].va_type = -1; 1009 } 1010 if (verify_adapter(&biosadapter[V_ADP_PRIMARY]) == 0) { 1011 ++biosadapters; 1012 biosadapter[V_ADP_PRIMARY].va_flags |= V_ADP_PROBED; 1013 #ifndef VGA_NO_BIOS 1014 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 1015 readb(BIOS_PADDRTOVADDR(0x449)); 1016 #else 1017 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 3; /* XXX */ 1018 #endif 1019 biosadapter[V_ADP_PRIMARY].va_mode = 1020 biosadapter[V_ADP_PRIMARY].va_initial_mode = 1021 map_bios_mode_num(biosadapter[V_ADP_PRIMARY].va_type, 1022 biosadapter[V_ADP_PRIMARY].va_flags & V_ADP_COLOR, 1023 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode); 1024 } else { 1025 biosadapter[V_ADP_PRIMARY] = biosadapter[V_ADP_SECONDARY]; 1026 biosadapter[V_ADP_SECONDARY].va_type = -1; 1027 } 1028 if (biosadapters == 0) 1029 return biosadapters; 1030 biosadapter[V_ADP_PRIMARY].va_unit = V_ADP_PRIMARY; 1031 biosadapter[V_ADP_SECONDARY].va_unit = V_ADP_SECONDARY; 1032 1033 #if 0 /* we don't need these... */ 1034 fb_init_struct(&biosadapter[V_ADP_PRIMARY], ...); 1035 fb_init_struct(&biosadapter[V_ADP_SECONDARY], ...); 1036 #endif 1037 1038 #if notyet 1039 /* 1040 * We cannot have two video adapter of the same type; there must be 1041 * only one of color or mono adapter, or one each of them. 1042 */ 1043 if (biosadapters > 1) { 1044 if (!((biosadapter[0].va_flags ^ biosadapter[1].va_flags) 1045 & V_ADP_COLOR)) 1046 /* we have two mono or color adapters!! */ 1047 return (biosadapters = 0); 1048 } 1049 #endif 1050 1051 /* 1052 * Ensure a zero start address. The registers are w/o 1053 * for old hardware so it's too hard to relocate the active screen 1054 * memory. 1055 * This must be done before vga_save_state() for VGA. 1056 */ 1057 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 12); 1058 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1059 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 13); 1060 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1061 1062 /* the video mode parameter table in EGA/VGA BIOS */ 1063 /* NOTE: there can be only one EGA/VGA, wheather color or mono, 1064 * recognized by the video BIOS. 1065 */ 1066 if ((biosadapter[V_ADP_PRIMARY].va_type == KD_EGA) || 1067 (biosadapter[V_ADP_PRIMARY].va_type == KD_VGA)) { 1068 adp = &biosadapter[V_ADP_PRIMARY]; 1069 } else if ((biosadapter[V_ADP_SECONDARY].va_type == KD_EGA) || 1070 (biosadapter[V_ADP_SECONDARY].va_type == KD_VGA)) { 1071 adp = &biosadapter[V_ADP_SECONDARY]; 1072 } else { 1073 adp = NULL; 1074 } 1075 bzero(mode_map, sizeof(mode_map)); 1076 if (adp != NULL) { 1077 if (adp->va_type == KD_VGA) { 1078 vga_save_state(adp, &adpstate, sizeof(adpstate)); 1079 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1080 mode_map[adp->va_initial_mode] = adpstate.regs; 1081 rows_offset = 1; 1082 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1083 if (video_mode_ptr == NULL) { 1084 mode_map[adp->va_initial_mode] = adpstate.regs; 1085 rows_offset = 1; 1086 } else { 1087 /* discard the table if we are not familiar with it... */ 1088 map_mode_table(mode_map, video_mode_ptr, M_VGA_CG320 + 1); 1089 mp = get_mode_param(adp->va_initial_mode); 1090 if (mp != NULL) 1091 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs)); 1092 switch (comp_adpregs(adpstate.regs, mp)) { 1093 case COMP_IDENTICAL: 1094 /* 1095 * OK, this parameter table looks reasonably familiar 1096 * to us... 1097 */ 1098 /* 1099 * This is a kludge for Toshiba DynaBook SS433 1100 * whose BIOS video mode table entry has the actual # 1101 * of rows at the offset 1; BIOSes from other 1102 * manufacturers store the # of rows - 1 there. XXX 1103 */ 1104 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1105 break; 1106 1107 case COMP_SIMILAR: 1108 /* 1109 * Not exactly the same, but similar enough to be 1110 * trusted. However, use the saved register values 1111 * for the initial mode and other modes which are 1112 * based on the initial mode. 1113 */ 1114 mode_map[adp->va_initial_mode] = adpstate.regs; 1115 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1116 adpstate.regs[1] -= rows_offset - 1; 1117 break; 1118 1119 case COMP_DIFFERENT: 1120 default: 1121 /* 1122 * Don't use the paramter table in BIOS. It doesn't 1123 * look familiar to us. Video mode switching is allowed 1124 * only if the new mode is the same as or based on 1125 * the initial mode. 1126 */ 1127 video_mode_ptr = NULL; 1128 bzero(mode_map, sizeof(mode_map)); 1129 mode_map[adp->va_initial_mode] = adpstate.regs; 1130 rows_offset = 1; 1131 break; 1132 } 1133 } 1134 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1135 1136 #ifndef VGA_NO_MODE_CHANGE 1137 adp->va_flags |= V_ADP_MODECHANGE; 1138 #endif 1139 #ifndef VGA_NO_FONT_LOADING 1140 adp->va_flags |= V_ADP_FONT; 1141 #endif 1142 } else if (adp->va_type == KD_EGA) { 1143 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1144 rows_offset = 1; 1145 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1146 if (video_mode_ptr == NULL) { 1147 rows_offset = 1; 1148 } else { 1149 map_mode_table(mode_map, video_mode_ptr, M_ENH_C80x25 + 1); 1150 /* XXX how can one validate the EGA table... */ 1151 mp = get_mode_param(adp->va_initial_mode); 1152 if (mp != NULL) { 1153 adp->va_flags |= V_ADP_MODECHANGE; 1154 #ifndef VGA_NO_FONT_LOADING 1155 adp->va_flags |= V_ADP_FONT; 1156 #endif 1157 rows_offset = 1; 1158 } else { 1159 /* 1160 * This is serious. We will not be able to switch video 1161 * modes at all... 1162 */ 1163 video_mode_ptr = NULL; 1164 bzero(mode_map, sizeof(mode_map)); 1165 rows_offset = 1; 1166 } 1167 } 1168 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1169 } 1170 } 1171 1172 /* remove conflicting modes if we have more than one adapter */ 1173 if (biosadapters > 0) { 1174 for (i = 0; i < biosadapters; ++i) { 1175 if (!(biosadapter[i].va_flags & V_ADP_MODECHANGE)) 1176 continue; 1177 clear_mode_map(&biosadapter[i], mode_map, M_VGA_CG320 + 1, 1178 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1179 V_INFO_COLOR : 0); 1180 if ((biosadapter[i].va_type == KD_VGA) 1181 || (biosadapter[i].va_type == KD_EGA)) { 1182 biosadapter[i].va_io_base = 1183 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1184 IO_VGA : IO_MDA; 1185 biosadapter[i].va_io_size = 32; 1186 } 1187 } 1188 } 1189 1190 /* buffer address */ 1191 vga_get_info(&biosadapter[V_ADP_PRIMARY], 1192 biosadapter[V_ADP_PRIMARY].va_initial_mode, &info); 1193 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1194 update_adapter_info(&biosadapter[V_ADP_PRIMARY], &info); 1195 1196 if (biosadapters > 1) { 1197 vga_get_info(&biosadapter[V_ADP_SECONDARY], 1198 biosadapter[V_ADP_SECONDARY].va_initial_mode, &info); 1199 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1200 update_adapter_info(&biosadapter[V_ADP_SECONDARY], &info); 1201 } 1202 1203 /* 1204 * XXX: we should verify the following values for the primary adapter... 1205 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463); 1206 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02) 1207 * ? 0 : V_ADP_COLOR; 1208 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a); 1209 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484); 1210 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485); 1211 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c); 1212 */ 1213 1214 return biosadapters; 1215 } 1216 1217 /* set the scan line length in pixel */ 1218 static int 1219 set_line_length(video_adapter_t *adp, int pixel) 1220 { 1221 u_char *mp; 1222 int ppw; /* pixels per word */ 1223 int bpl; /* bytes per line */ 1224 int count; 1225 1226 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1227 return ENODEV; 1228 mp = get_mode_param(adp->va_mode); 1229 if (mp == NULL) 1230 return EINVAL; 1231 1232 switch (adp->va_info.vi_mem_model) { 1233 case V_INFO_MM_PLANAR: 1234 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1235 count = (pixel + ppw - 1)/ppw/2; 1236 bpl = ((pixel + ppw - 1)/ppw/2)*4; 1237 break; 1238 case V_INFO_MM_PACKED: 1239 count = (pixel + 7)/8; 1240 bpl = ((pixel + 7)/8)*8; 1241 break; 1242 case V_INFO_MM_TEXT: 1243 count = (pixel + 7)/8; /* columns */ 1244 bpl = (pixel + 7)/8; /* columns */ 1245 break; 1246 default: 1247 return ENODEV; 1248 } 1249 1250 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */ 1251 count *= 2; /* byte mode */ 1252 outb(adp->va_crtc_addr, 0x13); 1253 outb(adp->va_crtc_addr + 1, count); 1254 adp->va_line_width = bpl; 1255 1256 return 0; 1257 } 1258 1259 static int 1260 set_display_start(video_adapter_t *adp, int x, int y) 1261 { 1262 int off; /* byte offset (graphics mode)/word offset (text mode) */ 1263 int poff; /* pixel offset */ 1264 int roff; /* row offset */ 1265 int ppb; /* pixels per byte */ 1266 1267 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1268 x &= ~7; 1269 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) { 1270 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1271 off = y*adp->va_line_width + x/ppb; 1272 roff = 0; 1273 poff = x%ppb; 1274 } else { 1275 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1276 outb(TSIDX, 1); 1277 if (inb(TSREG) & 1) 1278 ppb = 9; 1279 else 1280 ppb = 8; 1281 } else { 1282 ppb = 8; 1283 } 1284 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb; 1285 roff = y%adp->va_info.vi_cheight; 1286 /* FIXME: is this correct? XXX */ 1287 if (ppb == 8) 1288 poff = x%ppb; 1289 else 1290 poff = (x + 8)%ppb; 1291 } 1292 1293 /* start address */ 1294 outb(adp->va_crtc_addr, 0xc); /* high */ 1295 outb(adp->va_crtc_addr + 1, off >> 8); 1296 outb(adp->va_crtc_addr, 0xd); /* low */ 1297 outb(adp->va_crtc_addr + 1, off & 0xff); 1298 1299 /* horizontal pel pan */ 1300 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1301 inb(adp->va_crtc_addr + 6); 1302 outb(ATC, 0x13 | 0x20); 1303 outb(ATC, poff); 1304 inb(adp->va_crtc_addr + 6); 1305 outb(ATC, 0x20); 1306 } 1307 1308 /* preset raw scan */ 1309 outb(adp->va_crtc_addr, 8); 1310 outb(adp->va_crtc_addr + 1, roff); 1311 1312 adp->va_disp_start.x = x; 1313 adp->va_disp_start.y = y; 1314 return 0; 1315 } 1316 1317 #ifdef __i386__ /* XXX */ 1318 static void 1319 fill(int val, void *d, size_t size) 1320 { 1321 u_char *p = d; 1322 1323 while (size-- > 0) 1324 *p++ = val; 1325 } 1326 #endif /* __i386__ */ 1327 1328 static void 1329 filll_io(int val, vm_offset_t d, size_t size) 1330 { 1331 while (size-- > 0) { 1332 writel(d, val); 1333 d += sizeof(u_int32_t); 1334 } 1335 } 1336 1337 /* entry points */ 1338 1339 #if 0 1340 static int 1341 vga_nop(void) 1342 { 1343 return 0; 1344 } 1345 #endif 1346 1347 static int 1348 vga_error(void) 1349 { 1350 return ENODEV; 1351 } 1352 1353 static int 1354 vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 1355 { 1356 probe_adapters(); 1357 if (unit >= biosadapters) 1358 return ENXIO; 1359 1360 *adpp = &biosadapter[unit]; 1361 1362 return 0; 1363 } 1364 1365 static int 1366 vga_init(int unit, video_adapter_t *adp, int flags) 1367 { 1368 if ((unit >= biosadapters) || (adp == NULL) || !probe_done(adp)) 1369 return ENXIO; 1370 1371 if (!init_done(adp)) { 1372 /* nothing to do really... */ 1373 adp->va_flags |= V_ADP_INITIALIZED; 1374 } 1375 1376 if (!config_done(adp)) { 1377 if (vid_register(adp) < 0) 1378 return ENXIO; 1379 adp->va_flags |= V_ADP_REGISTERED; 1380 } 1381 if (vga_sub_configure != NULL) 1382 (*vga_sub_configure)(0); 1383 1384 return 0; 1385 } 1386 1387 /* 1388 * get_info(): 1389 * Return the video_info structure of the requested video mode. 1390 * 1391 * all adapters 1392 */ 1393 static int 1394 vga_get_info(video_adapter_t *adp, int mode, video_info_t *info) 1395 { 1396 int i; 1397 1398 if (!vga_init_done) 1399 return ENXIO; 1400 1401 mode = map_gen_mode_num(adp->va_type, adp->va_flags & V_ADP_COLOR, mode); 1402 #ifndef VGA_NO_MODE_CHANGE 1403 if (adp->va_flags & V_ADP_MODECHANGE) { 1404 /* 1405 * If the parameter table entry for this mode is not found, 1406 * the mode is not supported... 1407 */ 1408 if (get_mode_param(mode) == NULL) 1409 return EINVAL; 1410 } else 1411 #endif /* VGA_NO_MODE_CHANGE */ 1412 { 1413 /* 1414 * Even if we don't support video mode switching on this adapter, 1415 * the information on the initial (thus current) video mode 1416 * should be made available. 1417 */ 1418 if (mode != adp->va_initial_mode) 1419 return EINVAL; 1420 } 1421 1422 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1423 if (bios_vmode[i].vi_mode == NA) 1424 continue; 1425 if (mode == bios_vmode[i].vi_mode) { 1426 *info = bios_vmode[i]; 1427 /* XXX */ 1428 info->vi_buffer_size = info->vi_window_size*info->vi_planes; 1429 return 0; 1430 } 1431 } 1432 return EINVAL; 1433 } 1434 1435 /* 1436 * query_mode(): 1437 * Find a video mode matching the requested parameters. 1438 * Fields filled with 0 are considered "don't care" fields and 1439 * match any modes. 1440 * 1441 * all adapters 1442 */ 1443 static int 1444 vga_query_mode(video_adapter_t *adp, video_info_t *info) 1445 { 1446 int i; 1447 1448 if (!vga_init_done) 1449 return ENXIO; 1450 1451 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1452 if (bios_vmode[i].vi_mode == NA) 1453 continue; 1454 1455 if ((info->vi_width != 0) 1456 && (info->vi_width != bios_vmode[i].vi_width)) 1457 continue; 1458 if ((info->vi_height != 0) 1459 && (info->vi_height != bios_vmode[i].vi_height)) 1460 continue; 1461 if ((info->vi_cwidth != 0) 1462 && (info->vi_cwidth != bios_vmode[i].vi_cwidth)) 1463 continue; 1464 if ((info->vi_cheight != 0) 1465 && (info->vi_cheight != bios_vmode[i].vi_cheight)) 1466 continue; 1467 if ((info->vi_depth != 0) 1468 && (info->vi_depth != bios_vmode[i].vi_depth)) 1469 continue; 1470 if ((info->vi_planes != 0) 1471 && (info->vi_planes != bios_vmode[i].vi_planes)) 1472 continue; 1473 /* XXX: should check pixel format, memory model */ 1474 if ((info->vi_flags != 0) 1475 && (info->vi_flags != bios_vmode[i].vi_flags)) 1476 continue; 1477 1478 /* verify if this mode is supported on this adapter */ 1479 if (vga_get_info(adp, bios_vmode[i].vi_mode, info)) 1480 continue; 1481 return 0; 1482 } 1483 return ENODEV; 1484 } 1485 1486 /* 1487 * set_mode(): 1488 * Change the video mode. 1489 * 1490 * EGA/VGA 1491 */ 1492 1493 #ifndef VGA_NO_MODE_CHANGE 1494 #ifdef VGA_WIDTH90 1495 static void 1496 set_width90(adp_state_t *params) 1497 { 1498 /* 1499 * Based on code submitted by Kelly Yancey (kbyanc@freedomnet.com) 1500 * and alexv@sui.gda.itesm.mx. 1501 */ 1502 params->regs[5] |= 1; /* toggle 8 pixel wide fonts */ 1503 params->regs[10+0x0] = 0x6b; 1504 params->regs[10+0x1] = 0x59; 1505 params->regs[10+0x2] = 0x5a; 1506 params->regs[10+0x3] = 0x8e; 1507 params->regs[10+0x4] = 0x5e; 1508 params->regs[10+0x5] = 0x8a; 1509 params->regs[10+0x13] = 45; 1510 params->regs[35+0x13] = 0; 1511 } 1512 #endif /* VGA_WIDTH90 */ 1513 #endif /* !VGA_NO_MODE_CHANGE */ 1514 1515 static int 1516 vga_set_mode(video_adapter_t *adp, int mode) 1517 { 1518 #ifndef VGA_NO_MODE_CHANGE 1519 video_info_t info; 1520 adp_state_t params; 1521 1522 prologue(adp, V_ADP_MODECHANGE, ENODEV); 1523 1524 mode = map_gen_mode_num(adp->va_type, 1525 adp->va_flags & V_ADP_COLOR, mode); 1526 if (vga_get_info(adp, mode, &info)) 1527 return EINVAL; 1528 1529 #if VGA_DEBUG > 1 1530 printf("vga_set_mode(): setting mode %d\n", mode); 1531 #endif 1532 1533 params.sig = V_STATE_SIG; 1534 bcopy(get_mode_param(mode), params.regs, sizeof(params.regs)); 1535 1536 switch (mode) { 1537 #ifdef VGA_WIDTH90 1538 case M_VGA_C90x60: case M_VGA_M90x60: 1539 set_width90(¶ms); 1540 /* FALLTHROUGH */ 1541 #endif 1542 case M_VGA_C80x60: case M_VGA_M80x60: 1543 params.regs[2] = 0x08; 1544 params.regs[19] = 0x47; 1545 goto special_480l; 1546 1547 #ifdef VGA_WIDTH90 1548 case M_VGA_C90x30: case M_VGA_M90x30: 1549 set_width90(¶ms); 1550 /* FALLTHROUGH */ 1551 #endif 1552 case M_VGA_C80x30: case M_VGA_M80x30: 1553 params.regs[19] = 0x4f; 1554 special_480l: 1555 params.regs[9] |= 0xc0; 1556 params.regs[16] = 0x08; 1557 params.regs[17] = 0x3e; 1558 params.regs[26] = 0xea; 1559 params.regs[28] = 0xdf; 1560 params.regs[31] = 0xe7; 1561 params.regs[32] = 0x04; 1562 goto setup_mode; 1563 1564 #ifdef VGA_WIDTH90 1565 case M_VGA_C90x43: case M_VGA_M90x43: 1566 set_width90(¶ms); 1567 /* FALLTHROUGH */ 1568 #endif 1569 case M_ENH_C80x43: case M_ENH_B80x43: 1570 params.regs[28] = 87; 1571 goto special_80x50; 1572 1573 #ifdef VGA_WIDTH90 1574 case M_VGA_C90x50: case M_VGA_M90x50: 1575 set_width90(¶ms); 1576 /* FALLTHROUGH */ 1577 #endif 1578 case M_VGA_C80x50: case M_VGA_M80x50: 1579 special_80x50: 1580 params.regs[2] = 8; 1581 params.regs[19] = 7; 1582 goto setup_mode; 1583 1584 #ifdef VGA_WIDTH90 1585 case M_VGA_C90x25: case M_VGA_M90x25: 1586 set_width90(¶ms); 1587 /* FALLTHROUGH */ 1588 #endif 1589 case M_VGA_C40x25: case M_VGA_C80x25: 1590 case M_VGA_M80x25: 1591 case M_B40x25: case M_C40x25: 1592 case M_B80x25: case M_C80x25: 1593 case M_ENH_B40x25: case M_ENH_C40x25: 1594 case M_ENH_B80x25: case M_ENH_C80x25: 1595 case M_EGAMONO80x25: 1596 1597 setup_mode: 1598 vga_load_state(adp, ¶ms); 1599 break; 1600 1601 case M_VGA_MODEX: 1602 /* "unchain" the VGA mode */ 1603 params.regs[5-1+0x04] &= 0xf7; 1604 params.regs[5-1+0x04] |= 0x04; 1605 /* turn off doubleword mode */ 1606 params.regs[10+0x14] &= 0xbf; 1607 /* turn off word addressing */ 1608 params.regs[10+0x17] |= 0x40; 1609 /* set logical screen width */ 1610 params.regs[10+0x13] = 80; 1611 /* set 240 lines */ 1612 params.regs[10+0x11] = 0x2c; 1613 params.regs[10+0x06] = 0x0d; 1614 params.regs[10+0x07] = 0x3e; 1615 params.regs[10+0x10] = 0xea; 1616 params.regs[10+0x11] = 0xac; 1617 params.regs[10+0x12] = 0xdf; 1618 params.regs[10+0x15] = 0xe7; 1619 params.regs[10+0x16] = 0x06; 1620 /* set vertical sync polarity to reflect aspect ratio */ 1621 params.regs[9] = 0xe3; 1622 goto setup_grmode; 1623 1624 case M_BG320: case M_CG320: case M_BG640: 1625 case M_CG320_D: case M_CG640_E: 1626 case M_CG640x350: case M_ENH_CG640: 1627 case M_BG640x480: case M_CG640x480: case M_VGA_CG320: 1628 1629 setup_grmode: 1630 vga_load_state(adp, ¶ms); 1631 break; 1632 1633 default: 1634 return EINVAL; 1635 } 1636 1637 adp->va_mode = mode; 1638 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1639 update_adapter_info(adp, &info); 1640 1641 /* move hardware cursor out of the way */ 1642 (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1); 1643 1644 return 0; 1645 #else /* VGA_NO_MODE_CHANGE */ 1646 return ENODEV; 1647 #endif /* VGA_NO_MODE_CHANGE */ 1648 } 1649 1650 #ifndef VGA_NO_FONT_LOADING 1651 1652 static void 1653 set_font_mode(video_adapter_t *adp, u_char *buf) 1654 { 1655 u_char *mp; 1656 int s; 1657 1658 s = splhigh(); 1659 1660 /* save register values */ 1661 if (adp->va_type == KD_VGA) { 1662 outb(TSIDX, 0x02); buf[0] = inb(TSREG); 1663 outb(TSIDX, 0x04); buf[1] = inb(TSREG); 1664 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG); 1665 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG); 1666 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG); 1667 inb(adp->va_crtc_addr + 6); 1668 outb(ATC, 0x10); buf[5] = inb(ATC + 1); 1669 } else /* if (adp->va_type == KD_EGA) */ { 1670 /* 1671 * EGA cannot be read; copy parameters from the mode parameter 1672 * table. 1673 */ 1674 mp = get_mode_param(adp->va_mode); 1675 buf[0] = mp[5 + 0x02 - 1]; 1676 buf[1] = mp[5 + 0x04 - 1]; 1677 buf[2] = mp[55 + 0x04]; 1678 buf[3] = mp[55 + 0x05]; 1679 buf[4] = mp[55 + 0x06]; 1680 buf[5] = mp[35 + 0x10]; 1681 } 1682 1683 /* setup vga for loading fonts */ 1684 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1685 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01); 1686 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1687 outb(ATC, 0x20); /* enable palette */ 1688 1689 #if VGA_SLOW_IOACCESS 1690 #ifdef VGA_ALT_SEQACCESS 1691 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1692 #endif 1693 outb(TSIDX, 0x02); outb(TSREG, 0x04); 1694 outb(TSIDX, 0x04); outb(TSREG, 0x07); 1695 #ifdef VGA_ALT_SEQACCESS 1696 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1697 #endif 1698 outb(GDCIDX, 0x04); outb(GDCREG, 0x02); 1699 outb(GDCIDX, 0x05); outb(GDCREG, 0x00); 1700 outb(GDCIDX, 0x06); outb(GDCREG, 0x04); 1701 #else /* VGA_SLOW_IOACCESS */ 1702 #ifdef VGA_ALT_SEQACCESS 1703 outw(TSIDX, 0x0100); 1704 #endif 1705 outw(TSIDX, 0x0402); 1706 outw(TSIDX, 0x0704); 1707 #ifdef VGA_ALT_SEQACCESS 1708 outw(TSIDX, 0x0300); 1709 #endif 1710 outw(GDCIDX, 0x0204); 1711 outw(GDCIDX, 0x0005); 1712 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */ 1713 #endif /* VGA_SLOW_IOACCESS */ 1714 1715 splx(s); 1716 } 1717 1718 static void 1719 set_normal_mode(video_adapter_t *adp, u_char *buf) 1720 { 1721 int s; 1722 1723 s = splhigh(); 1724 1725 /* setup vga for normal operation mode again */ 1726 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1727 outb(ATC, 0x10); outb(ATC, buf[5]); 1728 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1729 outb(ATC, 0x20); /* enable palette */ 1730 1731 #if VGA_SLOW_IOACCESS 1732 #ifdef VGA_ALT_SEQACCESS 1733 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1734 #endif 1735 outb(TSIDX, 0x02); outb(TSREG, buf[0]); 1736 outb(TSIDX, 0x04); outb(TSREG, buf[1]); 1737 #ifdef VGA_ALT_SEQACCESS 1738 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1739 #endif 1740 outb(GDCIDX, 0x04); outb(GDCREG, buf[2]); 1741 outb(GDCIDX, 0x05); outb(GDCREG, buf[3]); 1742 if (adp->va_crtc_addr == MONO_CRTC) { 1743 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x08); 1744 } else { 1745 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x0c); 1746 } 1747 #else /* VGA_SLOW_IOACCESS */ 1748 #ifdef VGA_ALT_SEQACCESS 1749 outw(TSIDX, 0x0100); 1750 #endif 1751 outw(TSIDX, 0x0002 | (buf[0] << 8)); 1752 outw(TSIDX, 0x0004 | (buf[1] << 8)); 1753 #ifdef VGA_ALT_SEQACCESS 1754 outw(TSIDX, 0x0300); 1755 #endif 1756 outw(GDCIDX, 0x0004 | (buf[2] << 8)); 1757 outw(GDCIDX, 0x0005 | (buf[3] << 8)); 1758 if (adp->va_crtc_addr == MONO_CRTC) 1759 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x08)<<8)); 1760 else 1761 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8)); 1762 #endif /* VGA_SLOW_IOACCESS */ 1763 1764 splx(s); 1765 } 1766 1767 #endif /* VGA_NO_FONT_LOADING */ 1768 1769 /* 1770 * save_font(): 1771 * Read the font data in the requested font page from the video adapter. 1772 * 1773 * EGA/VGA 1774 */ 1775 static int 1776 vga_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1777 int ch, int count) 1778 { 1779 #ifndef VGA_NO_FONT_LOADING 1780 u_char buf[PARAM_BUFSIZE]; 1781 u_int32_t segment; 1782 int c; 1783 #ifdef VGA_ALT_SEQACCESS 1784 int s; 1785 u_char val = 0; 1786 #endif 1787 1788 prologue(adp, V_ADP_FONT, ENODEV); 1789 1790 if (fontsize < 14) { 1791 /* FONT_8 */ 1792 fontsize = 8; 1793 } else if (fontsize >= 32) { 1794 fontsize = 32; 1795 } else if (fontsize >= 16) { 1796 /* FONT_16 */ 1797 fontsize = 16; 1798 } else { 1799 /* FONT_14 */ 1800 fontsize = 14; 1801 } 1802 1803 if (page < 0 || page >= 8) 1804 return EINVAL; 1805 segment = FONT_BUF + 0x4000*page; 1806 if (page > 3) 1807 segment -= 0xe000; 1808 1809 #ifdef VGA_ALT_SEQACCESS 1810 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1811 s = splhigh(); 1812 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1813 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1814 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1815 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1816 splx(s); 1817 } 1818 #endif 1819 1820 set_font_mode(adp, buf); 1821 if (fontsize == 32) { 1822 bcopy_fromio(segment + ch*32, data, fontsize*count); 1823 } else { 1824 for (c = ch; count > 0; ++c, --count) { 1825 bcopy_fromio(segment + c*32, data, fontsize); 1826 data += fontsize; 1827 } 1828 } 1829 set_normal_mode(adp, buf); 1830 1831 #ifdef VGA_ALT_SEQACCESS 1832 if (adp->va_type == KD_VGA) { 1833 s = splhigh(); 1834 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1835 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1836 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1837 splx(s); 1838 } 1839 #endif 1840 1841 return 0; 1842 #else /* VGA_NO_FONT_LOADING */ 1843 return ENODEV; 1844 #endif /* VGA_NO_FONT_LOADING */ 1845 } 1846 1847 /* 1848 * load_font(): 1849 * Set the font data in the requested font page. 1850 * NOTE: it appears that some recent video adapters do not support 1851 * the font page other than 0... XXX 1852 * 1853 * EGA/VGA 1854 */ 1855 static int 1856 vga_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1857 int ch, int count) 1858 { 1859 #ifndef VGA_NO_FONT_LOADING 1860 u_char buf[PARAM_BUFSIZE]; 1861 u_int32_t segment; 1862 int c; 1863 #ifdef VGA_ALT_SEQACCESS 1864 int s; 1865 u_char val = 0; 1866 #endif 1867 1868 prologue(adp, V_ADP_FONT, ENODEV); 1869 1870 if (fontsize < 14) { 1871 /* FONT_8 */ 1872 fontsize = 8; 1873 } else if (fontsize >= 32) { 1874 fontsize = 32; 1875 } else if (fontsize >= 16) { 1876 /* FONT_16 */ 1877 fontsize = 16; 1878 } else { 1879 /* FONT_14 */ 1880 fontsize = 14; 1881 } 1882 1883 if (page < 0 || page >= 8) 1884 return EINVAL; 1885 segment = FONT_BUF + 0x4000*page; 1886 if (page > 3) 1887 segment -= 0xe000; 1888 1889 #ifdef VGA_ALT_SEQACCESS 1890 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1891 s = splhigh(); 1892 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1893 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1894 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1895 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1896 splx(s); 1897 } 1898 #endif 1899 1900 set_font_mode(adp, buf); 1901 if (fontsize == 32) { 1902 bcopy_toio(data, segment + ch*32, fontsize*count); 1903 } else { 1904 for (c = ch; count > 0; ++c, --count) { 1905 bcopy_toio(data, segment + c*32, fontsize); 1906 data += fontsize; 1907 } 1908 } 1909 set_normal_mode(adp, buf); 1910 1911 #ifdef VGA_ALT_SEQACCESS 1912 if (adp->va_type == KD_VGA) { 1913 s = splhigh(); 1914 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1915 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1916 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1917 splx(s); 1918 } 1919 #endif 1920 1921 return 0; 1922 #else /* VGA_NO_FONT_LOADING */ 1923 return ENODEV; 1924 #endif /* VGA_NO_FONT_LOADING */ 1925 } 1926 1927 /* 1928 * show_font(): 1929 * Activate the requested font page. 1930 * NOTE: it appears that some recent video adapters do not support 1931 * the font page other than 0... XXX 1932 * 1933 * EGA/VGA 1934 */ 1935 static int 1936 vga_show_font(video_adapter_t *adp, int page) 1937 { 1938 #ifndef VGA_NO_FONT_LOADING 1939 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f }; 1940 int s; 1941 1942 prologue(adp, V_ADP_FONT, ENODEV); 1943 if (page < 0 || page >= 8) 1944 return EINVAL; 1945 1946 s = splhigh(); 1947 outb(TSIDX, 0x03); outb(TSREG, cg[page]); 1948 splx(s); 1949 1950 return 0; 1951 #else /* VGA_NO_FONT_LOADING */ 1952 return ENODEV; 1953 #endif /* VGA_NO_FONT_LOADING */ 1954 } 1955 1956 /* 1957 * save_palette(): 1958 * Read DAC values. The values have expressed in 8 bits. 1959 * 1960 * VGA 1961 */ 1962 static int 1963 vga_save_palette(video_adapter_t *adp, u_char *palette) 1964 { 1965 int i; 1966 1967 prologue(adp, V_ADP_PALETTE, ENODEV); 1968 1969 /* 1970 * We store 8 bit values in the palette buffer, while the standard 1971 * VGA has 6 bit DAC . 1972 */ 1973 outb(PALRADR, 0x00); 1974 for (i = 0; i < 256*3; ++i) 1975 palette[i] = inb(PALDATA) << 2; 1976 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1977 return 0; 1978 } 1979 1980 static int 1981 vga_save_palette2(video_adapter_t *adp, int base, int count, 1982 u_char *r, u_char *g, u_char *b) 1983 { 1984 int i; 1985 1986 prologue(adp, V_ADP_PALETTE, ENODEV); 1987 1988 outb(PALRADR, base); 1989 for (i = 0; i < count; ++i) { 1990 r[i] = inb(PALDATA) << 2; 1991 g[i] = inb(PALDATA) << 2; 1992 b[i] = inb(PALDATA) << 2; 1993 } 1994 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1995 return 0; 1996 } 1997 1998 /* 1999 * load_palette(): 2000 * Set DAC values. 2001 * 2002 * VGA 2003 */ 2004 static int 2005 vga_load_palette(video_adapter_t *adp, u_char *palette) 2006 { 2007 int i; 2008 2009 prologue(adp, V_ADP_PALETTE, ENODEV); 2010 2011 outb(PIXMASK, 0xff); /* no pixelmask */ 2012 outb(PALWADR, 0x00); 2013 for (i = 0; i < 256*3; ++i) 2014 outb(PALDATA, palette[i] >> 2); 2015 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2016 outb(ATC, 0x20); /* enable palette */ 2017 return 0; 2018 } 2019 2020 static int 2021 vga_load_palette2(video_adapter_t *adp, int base, int count, 2022 u_char *r, u_char *g, u_char *b) 2023 { 2024 int i; 2025 2026 prologue(adp, V_ADP_PALETTE, ENODEV); 2027 2028 outb(PIXMASK, 0xff); /* no pixelmask */ 2029 outb(PALWADR, base); 2030 for (i = 0; i < count; ++i) { 2031 outb(PALDATA, r[i] >> 2); 2032 outb(PALDATA, g[i] >> 2); 2033 outb(PALDATA, b[i] >> 2); 2034 } 2035 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2036 outb(ATC, 0x20); /* enable palette */ 2037 return 0; 2038 } 2039 2040 /* 2041 * set_border(): 2042 * Change the border color. 2043 * 2044 * CGA/EGA/VGA 2045 */ 2046 static int 2047 vga_set_border(video_adapter_t *adp, int color) 2048 { 2049 prologue(adp, V_ADP_BORDER, ENODEV); 2050 2051 switch (adp->va_type) { 2052 case KD_EGA: 2053 case KD_VGA: 2054 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 2055 outb(ATC, 0x31); outb(ATC, color & 0xff); 2056 break; 2057 case KD_CGA: 2058 outb(adp->va_crtc_addr + 5, color & 0x0f); /* color select register */ 2059 break; 2060 case KD_MONO: 2061 case KD_HERCULES: 2062 default: 2063 break; 2064 } 2065 return 0; 2066 } 2067 2068 /* 2069 * save_state(): 2070 * Read video register values. 2071 * NOTE: this function only reads the standard EGA/VGA registers. 2072 * any extra/extended registers of SVGA adapters are not saved. 2073 * 2074 * VGA 2075 */ 2076 static int 2077 vga_save_state(video_adapter_t *adp, void *p, size_t size) 2078 { 2079 video_info_t info; 2080 u_char *buf; 2081 int crtc_addr; 2082 int i, j; 2083 int s; 2084 2085 if (size == 0) { 2086 /* return the required buffer size */ 2087 prologue(adp, V_ADP_STATESAVE, 0); 2088 return sizeof(adp_state_t); 2089 } else { 2090 prologue(adp, V_ADP_STATESAVE, ENODEV); 2091 if (size < sizeof(adp_state_t)) 2092 return EINVAL; 2093 } 2094 2095 ((adp_state_t *)p)->sig = V_STATE_SIG; 2096 buf = ((adp_state_t *)p)->regs; 2097 bzero(buf, V_MODE_PARAM_SIZE); 2098 crtc_addr = adp->va_crtc_addr; 2099 2100 s = splhigh(); 2101 2102 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2103 for (i = 0, j = 5; i < 4; i++) { 2104 outb(TSIDX, i + 1); 2105 buf[j++] = inb(TSREG); 2106 } 2107 buf[9] = inb(MISC + 10); /* dot-clock */ 2108 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2109 2110 for (i = 0, j = 10; i < 25; i++) { /* crtc */ 2111 outb(crtc_addr, i); 2112 buf[j++] = inb(crtc_addr + 1); 2113 } 2114 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */ 2115 inb(crtc_addr + 6); /* reset flip-flop */ 2116 outb(ATC, i); 2117 buf[j++] = inb(ATC + 1); 2118 } 2119 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */ 2120 outb(GDCIDX, i); 2121 buf[j++] = inb(GDCREG); 2122 } 2123 inb(crtc_addr + 6); /* reset flip-flop */ 2124 outb(ATC, 0x20); /* enable palette */ 2125 2126 splx(s); 2127 2128 #if 1 2129 if (vga_get_info(adp, adp->va_mode, &info) == 0) { 2130 if (info.vi_flags & V_INFO_GRAPHICS) { 2131 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */ 2132 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */ 2133 } else { 2134 buf[0] = info.vi_width; /* COLS */ 2135 buf[1] = info.vi_height - 1; /* ROWS */ 2136 } 2137 buf[2] = info.vi_cheight; /* POINTS */ 2138 } else { 2139 /* XXX: shouldn't be happening... */ 2140 printf("vga%d: %s: failed to obtain mode info. (vga_save_state())\n", 2141 adp->va_unit, adp->va_name); 2142 } 2143 #else 2144 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */ 2145 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */ 2146 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */ 2147 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c)); 2148 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d)); 2149 #endif 2150 2151 return 0; 2152 } 2153 2154 /* 2155 * load_state(): 2156 * Set video registers at once. 2157 * NOTE: this function only updates the standard EGA/VGA registers. 2158 * any extra/extended registers of SVGA adapters are not changed. 2159 * 2160 * EGA/VGA 2161 */ 2162 static int 2163 vga_load_state(video_adapter_t *adp, void *p) 2164 { 2165 u_char *buf; 2166 int crtc_addr; 2167 int s; 2168 int i; 2169 2170 prologue(adp, V_ADP_STATELOAD, ENODEV); 2171 if (((adp_state_t *)p)->sig != V_STATE_SIG) 2172 return EINVAL; 2173 2174 buf = ((adp_state_t *)p)->regs; 2175 crtc_addr = adp->va_crtc_addr; 2176 2177 #if VGA_DEBUG > 1 2178 dump_buffer(buf, V_MODE_PARAM_SIZE); 2179 #endif 2180 2181 s = splhigh(); 2182 2183 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2184 for (i = 0; i < 4; ++i) { /* program sequencer */ 2185 outb(TSIDX, i + 1); 2186 outb(TSREG, buf[i + 5]); 2187 } 2188 outb(MISC, buf[9]); /* set dot-clock */ 2189 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2190 outb(crtc_addr, 0x11); 2191 outb(crtc_addr + 1, inb(crtc_addr + 1) & 0x7F); 2192 for (i = 0; i < 25; ++i) { /* program crtc */ 2193 outb(crtc_addr, i); 2194 outb(crtc_addr + 1, buf[i + 10]); 2195 } 2196 inb(crtc_addr+6); /* reset flip-flop */ 2197 for (i = 0; i < 20; ++i) { /* program attribute ctrl */ 2198 outb(ATC, i); 2199 outb(ATC, buf[i + 35]); 2200 } 2201 for (i = 0; i < 9; ++i) { /* program graph data ctrl */ 2202 outb(GDCIDX, i); 2203 outb(GDCREG, buf[i + 55]); 2204 } 2205 inb(crtc_addr + 6); /* reset flip-flop */ 2206 outb(ATC, 0x20); /* enable palette */ 2207 2208 #if notyet /* a temporary workaround for kernel panic, XXX */ 2209 #ifndef VGA_NO_BIOS 2210 if (adp->va_unit == V_ADP_PRIMARY) { 2211 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */ 2212 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */ 2213 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */ 2214 #if 0 2215 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]); 2216 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]); 2217 #endif 2218 } 2219 #endif /* VGA_NO_BIOS */ 2220 #endif /* notyet */ 2221 2222 splx(s); 2223 return 0; 2224 } 2225 2226 /* 2227 * set_origin(): 2228 * Change the origin (window mapping) of the banked frame buffer. 2229 */ 2230 static int 2231 vga_set_origin(video_adapter_t *adp, off_t offset) 2232 { 2233 /* 2234 * The standard video modes do not require window mapping; 2235 * always return error. 2236 */ 2237 return ENODEV; 2238 } 2239 2240 /* 2241 * read_hw_cursor(): 2242 * Read the position of the hardware text cursor. 2243 * 2244 * all adapters 2245 */ 2246 static int 2247 vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 2248 { 2249 u_int16_t off; 2250 int s; 2251 2252 if (!vga_init_done) 2253 return ENXIO; 2254 2255 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2256 return ENODEV; 2257 2258 s = spltty(); 2259 outb(adp->va_crtc_addr, 14); 2260 off = inb(adp->va_crtc_addr + 1); 2261 outb(adp->va_crtc_addr, 15); 2262 off = (off << 8) | inb(adp->va_crtc_addr + 1); 2263 splx(s); 2264 2265 *row = off / adp->va_info.vi_width; 2266 *col = off % adp->va_info.vi_width; 2267 2268 return 0; 2269 } 2270 2271 /* 2272 * set_hw_cursor(): 2273 * Move the hardware text cursor. If col and row are both -1, 2274 * the cursor won't be shown. 2275 * 2276 * all adapters 2277 */ 2278 static int 2279 vga_set_hw_cursor(video_adapter_t *adp, int col, int row) 2280 { 2281 u_int16_t off; 2282 int s; 2283 2284 if (!vga_init_done) 2285 return ENXIO; 2286 2287 if ((col == -1) && (row == -1)) { 2288 off = -1; 2289 } else { 2290 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2291 return ENODEV; 2292 off = row*adp->va_info.vi_width + col; 2293 } 2294 2295 s = spltty(); 2296 outb(adp->va_crtc_addr, 14); 2297 outb(adp->va_crtc_addr + 1, off >> 8); 2298 outb(adp->va_crtc_addr, 15); 2299 outb(adp->va_crtc_addr + 1, off & 0x00ff); 2300 splx(s); 2301 2302 return 0; 2303 } 2304 2305 /* 2306 * set_hw_cursor_shape(): 2307 * Change the shape of the hardware text cursor. If the height is 2308 * zero or negative, the cursor won't be shown. 2309 * 2310 * all adapters 2311 */ 2312 static int 2313 vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 2314 int celsize, int blink) 2315 { 2316 int s; 2317 2318 if (!vga_init_done) 2319 return ENXIO; 2320 2321 s = spltty(); 2322 switch (adp->va_type) { 2323 case KD_VGA: 2324 case KD_CGA: 2325 case KD_MONO: 2326 case KD_HERCULES: 2327 default: 2328 if (height <= 0) { 2329 /* make the cursor invisible */ 2330 outb(adp->va_crtc_addr, 10); 2331 outb(adp->va_crtc_addr + 1, 32); 2332 outb(adp->va_crtc_addr, 11); 2333 outb(adp->va_crtc_addr + 1, 0); 2334 } else { 2335 outb(adp->va_crtc_addr, 10); 2336 outb(adp->va_crtc_addr + 1, celsize - base - height); 2337 outb(adp->va_crtc_addr, 11); 2338 outb(adp->va_crtc_addr + 1, celsize - base - 1); 2339 } 2340 break; 2341 case KD_EGA: 2342 if (height <= 0) { 2343 /* make the cursor invisible */ 2344 outb(adp->va_crtc_addr, 10); 2345 outb(adp->va_crtc_addr + 1, celsize); 2346 outb(adp->va_crtc_addr, 11); 2347 outb(adp->va_crtc_addr + 1, 0); 2348 } else { 2349 outb(adp->va_crtc_addr, 10); 2350 outb(adp->va_crtc_addr + 1, celsize - base - height); 2351 outb(adp->va_crtc_addr, 11); 2352 outb(adp->va_crtc_addr + 1, celsize - base); 2353 } 2354 break; 2355 } 2356 splx(s); 2357 2358 return 0; 2359 } 2360 2361 /* 2362 * blank_display() 2363 * Put the display in power save/power off mode. 2364 * 2365 * all adapters 2366 */ 2367 static int 2368 vga_blank_display(video_adapter_t *adp, int mode) 2369 { 2370 u_char val; 2371 int s; 2372 2373 s = splhigh(); 2374 switch (adp->va_type) { 2375 case KD_VGA: 2376 switch (mode) { 2377 case V_DISPLAY_SUSPEND: 2378 case V_DISPLAY_STAND_BY: 2379 outb(TSIDX, 0x01); 2380 val = inb(TSREG); 2381 outb(TSIDX, 0x01); 2382 outb(TSREG, val | 0x20); 2383 outb(adp->va_crtc_addr, 0x17); 2384 val = inb(adp->va_crtc_addr + 1); 2385 outb(adp->va_crtc_addr + 1, val & ~0x80); 2386 break; 2387 case V_DISPLAY_BLANK: 2388 outb(TSIDX, 0x01); 2389 val = inb(TSREG); 2390 outb(TSIDX, 0x01); 2391 outb(TSREG, val | 0x20); 2392 break; 2393 case V_DISPLAY_ON: 2394 outb(TSIDX, 0x01); 2395 val = inb(TSREG); 2396 outb(TSIDX, 0x01); 2397 outb(TSREG, val & 0xDF); 2398 outb(adp->va_crtc_addr, 0x17); 2399 val = inb(adp->va_crtc_addr + 1); 2400 outb(adp->va_crtc_addr + 1, val | 0x80); 2401 break; 2402 } 2403 break; 2404 2405 case KD_EGA: 2406 /* no support yet */ 2407 splx(s); 2408 return ENODEV; 2409 2410 case KD_CGA: 2411 switch (mode) { 2412 case V_DISPLAY_SUSPEND: 2413 case V_DISPLAY_STAND_BY: 2414 case V_DISPLAY_BLANK: 2415 outb(adp->va_crtc_addr + 4, 0x25); 2416 break; 2417 case V_DISPLAY_ON: 2418 outb(adp->va_crtc_addr + 4, 0x2d); 2419 break; 2420 } 2421 break; 2422 2423 case KD_MONO: 2424 case KD_HERCULES: 2425 switch (mode) { 2426 case V_DISPLAY_SUSPEND: 2427 case V_DISPLAY_STAND_BY: 2428 case V_DISPLAY_BLANK: 2429 outb(adp->va_crtc_addr + 4, 0x21); 2430 break; 2431 case V_DISPLAY_ON: 2432 outb(adp->va_crtc_addr + 4, 0x29); 2433 break; 2434 } 2435 break; 2436 default: 2437 break; 2438 } 2439 splx(s); 2440 2441 return 0; 2442 } 2443 2444 /* 2445 * mmap(): 2446 * Mmap frame buffer. 2447 * 2448 * all adapters 2449 */ 2450 static int 2451 vga_mmap_buf(video_adapter_t *adp, vm_offset_t offset, int prot) 2452 { 2453 if (adp->va_info.vi_flags & V_INFO_LINEAR) 2454 return -1; 2455 2456 #if VGA_DEBUG > 0 2457 printf("vga_mmap_buf(): window:0x%x, offset:0x%x\n", 2458 adp->va_info.vi_window, offset); 2459 #endif 2460 2461 /* XXX: is this correct? */ 2462 if (offset > adp->va_window_size - PAGE_SIZE) 2463 return -1; 2464 2465 #ifdef __i386__ 2466 return i386_btop(adp->va_info.vi_window + offset); 2467 #endif 2468 #ifdef __alpha__ 2469 return alpha_btop(adp->va_info.vi_window + offset); 2470 #endif 2471 #ifdef __ia64__ 2472 return ia64_btop(adp->va_info.vi_window + offset); 2473 #endif 2474 } 2475 2476 #ifndef VGA_NO_MODE_CHANGE 2477 2478 static void 2479 planar_fill(video_adapter_t *adp, int val) 2480 { 2481 int length; 2482 int at; /* position in the frame buffer */ 2483 int l; 2484 2485 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2486 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2487 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2488 outw(GDCIDX, 0xff08); /* bit mask */ 2489 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2490 at = 0; 2491 length = adp->va_line_width*adp->va_info.vi_height; 2492 while (length > 0) { 2493 l = imin(length, adp->va_window_size); 2494 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2495 bzero_io(adp->va_window, l); 2496 length -= l; 2497 at += l; 2498 } 2499 outw(GDCIDX, 0x0000); /* set/reset */ 2500 outw(GDCIDX, 0x0001); /* set/reset enable */ 2501 } 2502 2503 static void 2504 packed_fill(video_adapter_t *adp, int val) 2505 { 2506 int length; 2507 int at; /* position in the frame buffer */ 2508 int l; 2509 2510 at = 0; 2511 length = adp->va_line_width*adp->va_info.vi_height; 2512 while (length > 0) { 2513 l = imin(length, adp->va_window_size); 2514 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2515 fill_io(val, adp->va_window, l); 2516 length -= l; 2517 at += l; 2518 } 2519 } 2520 2521 static void 2522 direct_fill(video_adapter_t *adp, int val) 2523 { 2524 int length; 2525 int at; /* position in the frame buffer */ 2526 int l; 2527 2528 at = 0; 2529 length = adp->va_line_width*adp->va_info.vi_height; 2530 while (length > 0) { 2531 l = imin(length, adp->va_window_size); 2532 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2533 switch (adp->va_info.vi_pixel_size) { 2534 case sizeof(u_int16_t): 2535 fillw_io(val, adp->va_window, l/sizeof(u_int16_t)); 2536 break; 2537 case 3: 2538 /* FIXME */ 2539 break; 2540 case sizeof(u_int32_t): 2541 filll_io(val, adp->va_window, l/sizeof(u_int32_t)); 2542 break; 2543 } 2544 length -= l; 2545 at += l; 2546 } 2547 } 2548 2549 static int 2550 vga_clear(video_adapter_t *adp) 2551 { 2552 switch (adp->va_info.vi_mem_model) { 2553 case V_INFO_MM_TEXT: 2554 /* do nothing? XXX */ 2555 break; 2556 case V_INFO_MM_PLANAR: 2557 planar_fill(adp, 0); 2558 break; 2559 case V_INFO_MM_PACKED: 2560 packed_fill(adp, 0); 2561 break; 2562 case V_INFO_MM_DIRECT: 2563 direct_fill(adp, 0); 2564 break; 2565 } 2566 return 0; 2567 } 2568 2569 #ifdef notyet 2570 static void 2571 planar_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2572 { 2573 int banksize; 2574 int bank; 2575 int pos; 2576 int offset; /* offset within window */ 2577 int bx; 2578 int l; 2579 2580 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2581 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2582 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2583 outw(GDCIDX, 0xff08); /* bit mask */ 2584 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2585 2586 banksize = adp->va_window_size; 2587 bank = -1; 2588 while (cy > 0) { 2589 pos = adp->va_line_width*y + x/8; 2590 if (bank != pos/banksize) { 2591 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2592 bank = pos/banksize; 2593 } 2594 offset = pos%banksize; 2595 bx = (x + cx)/8 - x/8; 2596 if (x % 8) { 2597 outw(GDCIDX, ((0xff00 >> (x % 8)) & 0xff00) | 0x08); 2598 writeb(adp->va_window + offset, 0); 2599 ++offset; 2600 --bx; 2601 if (offset >= banksize) { 2602 offset = 0; 2603 ++bank; /* next bank */ 2604 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2605 } 2606 outw(GDCIDX, 0xff08); /* bit mask */ 2607 } 2608 while (bx > 0) { 2609 l = imin(bx, banksize); 2610 bzero_io(adp->va_window + offset, l); 2611 offset += l; 2612 bx -= l; 2613 if (offset >= banksize) { 2614 offset = 0; 2615 ++bank; /* next bank */ 2616 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2617 } 2618 } 2619 if ((x + cx) % 8) { 2620 outw(GDCIDX, (~(0xff00 >> ((x + cx) % 8)) & 0xff00) | 0x08); 2621 writeb(adp->va_window + offset, 0); 2622 ++offset; 2623 if (offset >= banksize) { 2624 offset = 0; 2625 ++bank; /* next bank */ 2626 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2627 } 2628 outw(GDCIDX, 0xff08); /* bit mask */ 2629 } 2630 ++y; 2631 --cy; 2632 } 2633 2634 outw(GDCIDX, 0xff08); /* bit mask */ 2635 outw(GDCIDX, 0x0000); /* set/reset */ 2636 outw(GDCIDX, 0x0001); /* set/reset enable */ 2637 } 2638 2639 static void 2640 packed_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2641 { 2642 int banksize; 2643 int bank; 2644 int pos; 2645 int offset; /* offset within window */ 2646 int end; 2647 2648 banksize = adp->va_window_size; 2649 bank = -1; 2650 cx *= adp->va_info.vi_pixel_size; 2651 while (cy > 0) { 2652 pos = adp->va_line_width*y + x*adp->va_info.vi_pixel_size; 2653 if (bank != pos/banksize) { 2654 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2655 bank = pos/banksize; 2656 } 2657 offset = pos%banksize; 2658 end = imin(offset + cx, banksize); 2659 fill_io(val, adp->va_window + offset, 2660 (end - offset)/adp->va_info.vi_pixel_size); 2661 /* the line may cross the window boundary */ 2662 if (offset + cx > banksize) { 2663 ++bank; /* next bank */ 2664 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2665 end = offset + cx - banksize; 2666 fill_io(val, adp->va_window, end/adp->va_info.vi_pixel_size); 2667 } 2668 ++y; 2669 --cy; 2670 } 2671 } 2672 2673 static void 2674 direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2675 { 2676 int banksize; 2677 int bank; 2678 int pos; 2679 int offset; /* offset within window */ 2680 int end; 2681 2682 /* 2683 * XXX: the function assumes that banksize is a muliple of 2684 * sizeof(u_int16_t). 2685 */ 2686 banksize = adp->va_window_size; 2687 bank = -1; 2688 cx *= sizeof(u_int16_t); 2689 while (cy > 0) { 2690 pos = adp->va_line_width*y + x*sizeof(u_int16_t); 2691 if (bank != pos/banksize) { 2692 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2693 bank = pos/banksize; 2694 } 2695 offset = pos%banksize; 2696 end = imin(offset + cx, banksize); 2697 fillw_io(val, adp->va_window + offset, 2698 (end - offset)/sizeof(u_int16_t)); 2699 /* the line may cross the window boundary */ 2700 if (offset + cx > banksize) { 2701 ++bank; /* next bank */ 2702 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2703 end = offset + cx - banksize; 2704 fillw_io(val, adp->va_window, end/sizeof(u_int16_t)); 2705 } 2706 ++y; 2707 --cy; 2708 } 2709 } 2710 2711 static void 2712 direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2713 { 2714 int banksize; 2715 int bank; 2716 int pos; 2717 int offset; /* offset within window */ 2718 int end; 2719 int i; 2720 int j; 2721 u_int8_t b[3]; 2722 2723 b[0] = val & 0x0000ff; 2724 b[1] = (val >> 8) & 0x0000ff; 2725 b[2] = (val >> 16) & 0x0000ff; 2726 banksize = adp->va_window_size; 2727 bank = -1; 2728 cx *= 3; 2729 while (cy > 0) { 2730 pos = adp->va_line_width*y + x*3; 2731 if (bank != pos/banksize) { 2732 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2733 bank = pos/banksize; 2734 } 2735 offset = pos%banksize; 2736 end = imin(offset + cx, banksize); 2737 for (i = 0, j = offset; j < end; i = (++i)%3, ++j) { 2738 writeb(adp->va_window + j, b[i]); 2739 } 2740 /* the line may cross the window boundary */ 2741 if (offset + cx >= banksize) { 2742 ++bank; /* next bank */ 2743 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2744 j = 0; 2745 end = offset + cx - banksize; 2746 for (; j < end; i = (++i)%3, ++j) { 2747 writeb(adp->va_window + j, b[i]); 2748 } 2749 } 2750 ++y; 2751 --cy; 2752 } 2753 } 2754 2755 static void 2756 direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2757 { 2758 int banksize; 2759 int bank; 2760 int pos; 2761 int offset; /* offset within window */ 2762 int end; 2763 2764 /* 2765 * XXX: the function assumes that banksize is a muliple of 2766 * sizeof(u_int32_t). 2767 */ 2768 banksize = adp->va_window_size; 2769 bank = -1; 2770 cx *= sizeof(u_int32_t); 2771 while (cy > 0) { 2772 pos = adp->va_line_width*y + x*sizeof(u_int32_t); 2773 if (bank != pos/banksize) { 2774 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2775 bank = pos/banksize; 2776 } 2777 offset = pos%banksize; 2778 end = imin(offset + cx, banksize); 2779 filll_io(val, adp->va_window + offset, 2780 (end - offset)/sizeof(u_int32_t)); 2781 /* the line may cross the window boundary */ 2782 if (offset + cx > banksize) { 2783 ++bank; /* next bank */ 2784 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2785 end = offset + cx - banksize; 2786 filll_io(val, adp->va_window, end/sizeof(u_int32_t)); 2787 } 2788 ++y; 2789 --cy; 2790 } 2791 } 2792 2793 static int 2794 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2795 { 2796 switch (adp->va_info.vi_mem_model) { 2797 case V_INFO_MM_TEXT: 2798 /* do nothing? XXX */ 2799 break; 2800 case V_INFO_MM_PLANAR: 2801 planar_fill_rect(adp, val, x, y, cx, cy); 2802 break; 2803 case V_INFO_MM_PACKED: 2804 packed_fill_rect(adp, val, x, y, cx, cy); 2805 break; 2806 case V_INFO_MM_DIRECT: 2807 switch (adp->va_info.vi_pixel_size) { 2808 case sizeof(u_int16_t): 2809 direct_fill_rect16(adp, val, x, y, cx, cy); 2810 break; 2811 case 3: 2812 direct_fill_rect24(adp, val, x, y, cx, cy); 2813 break; 2814 case sizeof(u_int32_t): 2815 direct_fill_rect32(adp, val, x, y, cx, cy); 2816 break; 2817 } 2818 break; 2819 } 2820 return 0; 2821 } 2822 #else /* !notyet */ 2823 static int 2824 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2825 { 2826 return ENODEV; 2827 } 2828 #endif /* notyet */ 2829 2830 static int 2831 vga_bitblt(video_adapter_t *adp,...) 2832 { 2833 /* FIXME */ 2834 return ENODEV; 2835 } 2836 2837 #endif /* !VGA_NO_MODE_CHANGE */ 2838 2839 static int 2840 get_palette(video_adapter_t *adp, int base, int count, 2841 u_char *red, u_char *green, u_char *blue, u_char *trans) 2842 { 2843 u_char *r; 2844 u_char *g; 2845 u_char *b; 2846 2847 if ((base < 0) || (base >= 256) || (base + count > 256)) 2848 return EINVAL; 2849 2850 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2851 g = r + count; 2852 b = g + count; 2853 if (vga_save_palette2(adp, base, count, r, g, b)) { 2854 free(r, M_DEVBUF); 2855 return ENODEV; 2856 } 2857 copyout(r, red, count); 2858 copyout(g, green, count); 2859 copyout(b, blue, count); 2860 if (trans != NULL) { 2861 bzero(r, count); 2862 copyout(r, trans, count); 2863 } 2864 free(r, M_DEVBUF); 2865 2866 return 0; 2867 } 2868 2869 static int 2870 set_palette(video_adapter_t *adp, int base, int count, 2871 u_char *red, u_char *green, u_char *blue, u_char *trans) 2872 { 2873 u_char *r; 2874 u_char *g; 2875 u_char *b; 2876 int err; 2877 2878 if ((base < 0) || (base >= 256) || (base + count > 256)) 2879 return EINVAL; 2880 2881 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2882 g = r + count; 2883 b = g + count; 2884 copyin(red, r, count); 2885 copyin(green, g, count); 2886 copyin(blue, b, count); 2887 err = vga_load_palette2(adp, base, count, r, g, b); 2888 free(r, M_DEVBUF); 2889 2890 return (err ? ENODEV : 0); 2891 } 2892 2893 static int 2894 vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 2895 { 2896 switch (cmd) { 2897 case FBIO_GETWINORG: /* get frame buffer window origin */ 2898 *(u_int *)arg = 0; 2899 return 0; 2900 2901 case FBIO_SETWINORG: /* set frame buffer window origin */ 2902 return ENODEV; 2903 2904 case FBIO_SETDISPSTART: /* set display start address */ 2905 return (set_display_start(adp, 2906 ((video_display_start_t *)arg)->x, 2907 ((video_display_start_t *)arg)->y) 2908 ? ENODEV : 0); 2909 2910 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */ 2911 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0); 2912 2913 case FBIO_GETPALETTE: /* get color palette */ 2914 return get_palette(adp, ((video_color_palette_t *)arg)->index, 2915 ((video_color_palette_t *)arg)->count, 2916 ((video_color_palette_t *)arg)->red, 2917 ((video_color_palette_t *)arg)->green, 2918 ((video_color_palette_t *)arg)->blue, 2919 ((video_color_palette_t *)arg)->transparent); 2920 2921 case FBIO_SETPALETTE: /* set color palette */ 2922 return set_palette(adp, ((video_color_palette_t *)arg)->index, 2923 ((video_color_palette_t *)arg)->count, 2924 ((video_color_palette_t *)arg)->red, 2925 ((video_color_palette_t *)arg)->green, 2926 ((video_color_palette_t *)arg)->blue, 2927 ((video_color_palette_t *)arg)->transparent); 2928 2929 case FBIOGTYPE: /* get frame buffer type info. */ 2930 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type); 2931 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height; 2932 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width; 2933 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth; 2934 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8)) 2935 ((struct fbtype *)arg)->fb_cmsize = 0; 2936 else 2937 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth; 2938 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size; 2939 return 0; 2940 2941 case FBIOGETCMAP: /* get color palette */ 2942 return get_palette(adp, ((struct fbcmap *)arg)->index, 2943 ((struct fbcmap *)arg)->count, 2944 ((struct fbcmap *)arg)->red, 2945 ((struct fbcmap *)arg)->green, 2946 ((struct fbcmap *)arg)->blue, NULL); 2947 2948 case FBIOPUTCMAP: /* set color palette */ 2949 return set_palette(adp, ((struct fbcmap *)arg)->index, 2950 ((struct fbcmap *)arg)->count, 2951 ((struct fbcmap *)arg)->red, 2952 ((struct fbcmap *)arg)->green, 2953 ((struct fbcmap *)arg)->blue, NULL); 2954 2955 default: 2956 return fb_commonioctl(adp, cmd, arg); 2957 } 2958 } 2959 2960 static void 2961 dump_buffer(u_char *buf, size_t len) 2962 { 2963 int i; 2964 2965 for(i = 0; i < len;) { 2966 printf("%02x ", buf[i]); 2967 if ((++i % 16) == 0) 2968 printf("\n"); 2969 } 2970 } 2971 2972 /* 2973 * diag(): 2974 * Print some information about the video adapter and video modes, 2975 * with requested level of details. 2976 * 2977 * all adapters 2978 */ 2979 static int 2980 vga_diag(video_adapter_t *adp, int level) 2981 { 2982 u_char *mp; 2983 #if FB_DEBUG > 1 2984 video_info_t info; 2985 int i; 2986 #endif 2987 2988 if (!vga_init_done) 2989 return ENXIO; 2990 2991 #if FB_DEBUG > 1 2992 #ifndef VGA_NO_BIOS 2993 printf("vga: RTC equip. code:0x%02x, DCC code:0x%02x\n", 2994 rtcin(RTC_EQUIPMENT), readb(BIOS_PADDRTOVADDR(0x488))); 2995 printf("vga: CRTC:0x%x, video option:0x%02x, ", 2996 readw(BIOS_PADDRTOVADDR(0x463)), 2997 readb(BIOS_PADDRTOVADDR(0x487))); 2998 printf("rows:%d, cols:%d, font height:%d\n", 2999 readb(BIOS_PADDRTOVADDR(0x44a)), 3000 readb(BIOS_PADDRTOVADDR(0x484)) + 1, 3001 readb(BIOS_PADDRTOVADDR(0x485))); 3002 #endif /* VGA_NO_BIOS */ 3003 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 3004 printf("vga: param table EGA/VGA:%p", video_mode_ptr); 3005 printf(", CGA/MDA:%p\n", video_mode_ptr2); 3006 printf("vga: rows_offset:%d\n", rows_offset); 3007 #endif 3008 #endif /* FB_DEBUG > 1 */ 3009 3010 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level); 3011 3012 #if FB_DEBUG > 1 3013 if (adp->va_flags & V_ADP_MODECHANGE) { 3014 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 3015 if (bios_vmode[i].vi_mode == NA) 3016 continue; 3017 if (get_mode_param(bios_vmode[i].vi_mode) == NULL) 3018 continue; 3019 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level); 3020 } 3021 } else { 3022 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */ 3023 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level); 3024 } 3025 #endif /* FB_DEBUG > 1 */ 3026 3027 if ((adp->va_type != KD_EGA) && (adp->va_type != KD_VGA)) 3028 return 0; 3029 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 3030 if (video_mode_ptr == NULL) 3031 printf("vga%d: %s: WARNING: video mode switching is not " 3032 "fully supported on this adapter\n", 3033 adp->va_unit, adp->va_name); 3034 #endif 3035 if (level <= 0) 3036 return 0; 3037 3038 if (adp->va_type == KD_VGA) { 3039 printf("VGA parameters upon power-up\n"); 3040 dump_buffer(adpstate.regs, sizeof(adpstate.regs)); 3041 printf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode); 3042 dump_buffer(adpstate2.regs, sizeof(adpstate2.regs)); 3043 } 3044 3045 mp = get_mode_param(adp->va_initial_mode); 3046 if (mp == NULL) /* this shouldn't be happening */ 3047 return 0; 3048 printf("EGA/VGA parameters to be used for mode %d\n", adp->va_initial_mode); 3049 dump_buffer(mp, V_MODE_PARAM_SIZE); 3050 3051 return 0; 3052 } 3053