1 /*- 2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 3 * Copyright (c) 1992-1998 S�ren Schmidt 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer as 11 * the first lines of this file unmodified. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * $FreeBSD: src/sys/dev/fb/vga.c,v 1.9.2.1 2001/08/11 02:58:44 yokota Exp $ 30 * $DragonFly: src/sys/dev/video/fb/vga.c,v 1.14 2005/07/29 21:17:08 swildner Exp $ 31 */ 32 33 #include "opt_vga.h" 34 #include "opt_fb.h" 35 #include "opt_syscons.h" /* should be removed in the future, XXX */ 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/conf.h> 41 #include <sys/fcntl.h> 42 #include <sys/malloc.h> 43 #include <sys/fbio.h> 44 #include <sys/thread2.h> 45 46 #include <vm/vm.h> 47 #include <vm/vm_param.h> 48 #include <vm/pmap.h> 49 50 #include <machine/md_var.h> 51 #include <machine/pc/bios.h> 52 53 #include "fbreg.h" 54 #include "vgareg.h" 55 56 #include <bus/isa/isareg.h> 57 58 #ifndef VGA_DEBUG 59 #define VGA_DEBUG 0 60 #endif 61 62 int 63 vga_probe_unit(int unit, video_adapter_t *buf, int flags) 64 { 65 video_adapter_t *adp; 66 video_switch_t *sw; 67 int error; 68 69 sw = vid_get_switch(VGA_DRIVER_NAME); 70 if (sw == NULL) 71 return 0; 72 error = (*sw->probe)(unit, &adp, NULL, flags); 73 if (error) 74 return error; 75 bcopy(adp, buf, sizeof(*buf)); 76 return 0; 77 } 78 79 int 80 vga_attach_unit(int unit, vga_softc_t *sc, int flags) 81 { 82 video_switch_t *sw; 83 int error; 84 85 sw = vid_get_switch(VGA_DRIVER_NAME); 86 if (sw == NULL) 87 return ENXIO; 88 89 error = (*sw->probe)(unit, &sc->adp, NULL, flags); 90 if (error) 91 return error; 92 return (*sw->init)(unit, sc->adp, flags); 93 } 94 95 /* cdev driver functions */ 96 97 #ifdef FB_INSTALL_CDEV 98 99 int 100 vga_open(dev_t dev, vga_softc_t *sc, int flag, int mode, struct thread *td) 101 { 102 if (sc == NULL) 103 return ENXIO; 104 if (mode & (O_CREAT | O_APPEND | O_TRUNC)) 105 return ENODEV; 106 107 return genfbopen(&sc->gensc, sc->adp, flag, mode, td); 108 } 109 110 int 111 vga_close(dev_t dev, vga_softc_t *sc, int flag, int mode, struct thread *td) 112 { 113 return genfbclose(&sc->gensc, sc->adp, flag, mode, td); 114 } 115 116 int 117 vga_read(dev_t dev, vga_softc_t *sc, struct uio *uio, int flag) 118 { 119 return genfbread(&sc->gensc, sc->adp, uio, flag); 120 } 121 122 int 123 vga_write(dev_t dev, vga_softc_t *sc, struct uio *uio, int flag) 124 { 125 return genfbread(&sc->gensc, sc->adp, uio, flag); 126 } 127 128 int 129 vga_ioctl(dev_t dev, vga_softc_t *sc, u_long cmd, caddr_t arg, int flag, 130 struct thread *td) 131 { 132 return genfbioctl(&sc->gensc, sc->adp, cmd, arg, flag, td); 133 } 134 135 int 136 vga_mmap(dev_t dev, vga_softc_t *sc, vm_offset_t offset, int prot) 137 { 138 return genfbmmap(&sc->gensc, sc->adp, offset, prot); 139 } 140 141 #endif /* FB_INSTALL_CDEV */ 142 143 /* LOW-LEVEL */ 144 145 #include <machine/clock.h> 146 #include <machine/pc/vesa.h> 147 148 #define probe_done(adp) ((adp)->va_flags & V_ADP_PROBED) 149 #define init_done(adp) ((adp)->va_flags & V_ADP_INITIALIZED) 150 #define config_done(adp) ((adp)->va_flags & V_ADP_REGISTERED) 151 152 /* for compatibility with old kernel options */ 153 #ifdef SC_ALT_SEQACCESS 154 #undef SC_ALT_SEQACCESS 155 #undef VGA_ALT_SEQACCESS 156 #define VGA_ALT_SEQACCESS 1 157 #endif 158 159 #ifdef SLOW_VGA 160 #undef SLOW_VGA 161 #undef VGA_SLOW_IOACCESS 162 #define VGA_SLOW_IOACCESS 1 163 #endif 164 165 /* this should really be in `rtc.h' */ 166 #define RTC_EQUIPMENT 0x14 167 168 /* various sizes */ 169 #define V_MODE_MAP_SIZE (M_VGA_CG320 + 1) 170 #define V_MODE_PARAM_SIZE 64 171 172 /* video adapter state buffer */ 173 struct adp_state { 174 int sig; 175 #define V_STATE_SIG 0x736f6962 176 u_char regs[V_MODE_PARAM_SIZE]; 177 }; 178 typedef struct adp_state adp_state_t; 179 180 /* video adapter information */ 181 #define DCC_MONO 0 182 #define DCC_CGA40 1 183 #define DCC_CGA80 2 184 #define DCC_EGAMONO 3 185 #define DCC_EGA40 4 186 #define DCC_EGA80 5 187 188 /* 189 * NOTE: `va_window' should have a virtual address, but is initialized 190 * with a physical address in the following table, as verify_adapter() 191 * will perform address conversion at run-time. 192 */ 193 static video_adapter_t adapter_init_value[] = { 194 /* DCC_MONO */ 195 { 0, KD_MONO, "mda", 0, 0, 0, IO_MDA, IO_MDASIZE, MONO_CRTC, 196 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 197 0, 0, 0, 0, 7, 0, }, 198 /* DCC_CGA40 */ 199 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 200 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 201 0, 0, 0, 0, 3, 0, }, 202 /* DCC_CGA80 */ 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_EGAMONO */ 207 { 0, KD_EGA, "ega", 0, 0, 0, IO_MDA, 48, MONO_CRTC, 208 EGA_BUF_BASE, EGA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 209 0, 0, 0, 0, 7, 0, }, 210 /* DCC_EGA40 */ 211 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 212 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 213 0, 0, 0, 0, 3, 0, }, 214 /* DCC_EGA80 */ 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 }; 219 220 static video_adapter_t biosadapter[2]; 221 static int biosadapters = 0; 222 223 /* video driver declarations */ 224 static int vga_configure(int flags); 225 int (*vga_sub_configure)(int flags); 226 #if 0 227 static int vga_nop(void); 228 #endif 229 static int vga_error(void); 230 static vi_probe_t vga_probe; 231 static vi_init_t vga_init; 232 static vi_get_info_t vga_get_info; 233 static vi_query_mode_t vga_query_mode; 234 static vi_set_mode_t vga_set_mode; 235 static vi_save_font_t vga_save_font; 236 static vi_load_font_t vga_load_font; 237 static vi_show_font_t vga_show_font; 238 static vi_save_palette_t vga_save_palette; 239 static vi_load_palette_t vga_load_palette; 240 static vi_set_border_t vga_set_border; 241 static vi_save_state_t vga_save_state; 242 static vi_load_state_t vga_load_state; 243 static vi_set_win_org_t vga_set_origin; 244 static vi_read_hw_cursor_t vga_read_hw_cursor; 245 static vi_set_hw_cursor_t vga_set_hw_cursor; 246 static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape; 247 static vi_blank_display_t vga_blank_display; 248 static vi_mmap_t vga_mmap_buf; 249 static vi_ioctl_t vga_dev_ioctl; 250 #ifndef VGA_NO_MODE_CHANGE 251 static vi_clear_t vga_clear; 252 static vi_fill_rect_t vga_fill_rect; 253 static vi_bitblt_t vga_bitblt; 254 #else /* VGA_NO_MODE_CHANGE */ 255 #define vga_clear (vi_clear_t *)vga_error 256 #define vga_fill_rect (vi_fill_rect_t *)vga_error 257 #define vga_bitblt (vi_bitblt_t *)vga_error 258 #endif 259 static vi_diag_t vga_diag; 260 261 static video_switch_t vgavidsw = { 262 vga_probe, 263 vga_init, 264 vga_get_info, 265 vga_query_mode, 266 vga_set_mode, 267 vga_save_font, 268 vga_load_font, 269 vga_show_font, 270 vga_save_palette, 271 vga_load_palette, 272 vga_set_border, 273 vga_save_state, 274 vga_load_state, 275 vga_set_origin, 276 vga_read_hw_cursor, 277 vga_set_hw_cursor, 278 vga_set_hw_cursor_shape, 279 vga_blank_display, 280 vga_mmap_buf, 281 vga_dev_ioctl, 282 vga_clear, 283 vga_fill_rect, 284 vga_bitblt, 285 vga_error, 286 vga_error, 287 vga_diag, 288 }; 289 290 VIDEO_DRIVER(mda, vgavidsw, NULL); 291 VIDEO_DRIVER(cga, vgavidsw, NULL); 292 VIDEO_DRIVER(ega, vgavidsw, NULL); 293 VIDEO_DRIVER(vga, vgavidsw, vga_configure); 294 295 /* VGA BIOS standard video modes */ 296 #define EOT (-1) 297 #define NA (-2) 298 299 static video_info_t bios_vmode[] = { 300 /* CGA */ 301 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1, 302 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 303 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1, 304 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 305 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1, 306 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 307 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1, 308 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 309 /* EGA */ 310 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1, 311 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 312 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1, 313 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 314 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1, 315 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 316 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1, 317 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 318 /* VGA */ 319 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1, 320 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 321 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1, 322 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 323 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1, 324 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 325 /* MDA */ 326 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1, 327 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 328 /* EGA */ 329 { M_ENH_B80x43, 0, 80, 43, 8, 8, 2, 1, 330 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 331 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1, 332 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 333 /* VGA */ 334 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1, 335 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 336 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1, 337 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 338 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1, 339 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 340 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1, 341 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 342 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1, 343 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 344 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1, 345 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 346 347 #ifndef VGA_NO_MODE_CHANGE 348 349 #ifdef VGA_WIDTH90 350 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1, 351 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 352 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1, 353 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 354 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1, 355 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 356 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1, 357 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 358 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1, 359 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 360 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1, 361 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 362 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1, 363 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 364 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1, 365 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 366 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1, 367 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 368 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1, 369 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 370 #endif /* VGA_WIDTH90 */ 371 372 /* CGA */ 373 { M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 374 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 375 { M_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 376 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 377 { M_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1, 378 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 379 /* EGA */ 380 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4, 381 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 382 V_INFO_MM_PLANAR }, 383 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4, 384 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 385 V_INFO_MM_PLANAR }, 386 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 387 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 , 388 V_INFO_MM_PLANAR }, 389 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 390 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 391 V_INFO_MM_PLANAR }, 392 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2, 393 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 394 V_INFO_MM_PLANAR }, 395 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 396 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 397 V_INFO_MM_PLANAR }, 398 /* VGA */ 399 { M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 400 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 401 V_INFO_MM_PLANAR }, 402 { M_CG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 403 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 404 V_INFO_MM_PLANAR }, 405 { M_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1, 406 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 407 V_INFO_MM_PACKED, 1 }, 408 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 4, 409 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 410 V_INFO_MM_VGAX, 1 }, 411 #endif /* VGA_NO_MODE_CHANGE */ 412 413 { EOT }, 414 }; 415 416 static int vga_init_done = FALSE; 417 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 418 static u_char *video_mode_ptr = NULL; /* EGA/VGA */ 419 static u_char *video_mode_ptr2 = NULL; /* CGA/MDA */ 420 #endif 421 static u_char *mode_map[V_MODE_MAP_SIZE]; 422 static adp_state_t adpstate; 423 static adp_state_t adpstate2; 424 static int rows_offset = 1; 425 426 /* local macros and functions */ 427 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 428 429 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 430 static void map_mode_table(u_char **, u_char *, int); 431 #endif 432 static void clear_mode_map(video_adapter_t *, u_char **, int, int); 433 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 434 static int map_mode_num(int); 435 #endif 436 static int map_gen_mode_num(int, int, int); 437 static int map_bios_mode_num(int, int, int); 438 static u_char *get_mode_param(int); 439 #ifndef VGA_NO_BIOS 440 static void fill_adapter_param(int, video_adapter_t *); 441 #endif 442 static int verify_adapter(video_adapter_t *); 443 static void update_adapter_info(video_adapter_t *, video_info_t *); 444 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 445 #define COMP_IDENTICAL 0 446 #define COMP_SIMILAR 1 447 #define COMP_DIFFERENT 2 448 static int comp_adpregs(u_char *, u_char *); 449 #endif 450 static int probe_adapters(void); 451 static int set_line_length(video_adapter_t *, int); 452 static int set_display_start(video_adapter_t *, int, int); 453 454 #ifndef VGA_NO_MODE_CHANGE 455 #ifdef VGA_WIDTH90 456 static void set_width90(adp_state_t *); 457 #endif 458 #endif /* !VGA_NO_MODE_CHANGE */ 459 460 #ifndef VGA_NO_FONT_LOADING 461 #define PARAM_BUFSIZE 6 462 static void set_font_mode(video_adapter_t *, u_char *); 463 static void set_normal_mode(video_adapter_t *, u_char *); 464 #endif 465 466 #ifndef VGA_NO_MODE_CHANGE 467 static void filll_io(int, vm_offset_t, size_t); 468 static void planar_fill(video_adapter_t *, int); 469 static void packed_fill(video_adapter_t *, int); 470 static void direct_fill(video_adapter_t *, int); 471 #ifdef notyet 472 static void planar_fill_rect(video_adapter_t *, int, int, int, int, int); 473 static void packed_fill_rect(video_adapter_t *, int, int, int, int, int); 474 static void direct_fill_rect16(video_adapter_t *, int, int, int, int, int); 475 static void direct_fill_rect24(video_adapter_t *, int, int, int, int, int); 476 static void direct_fill_rect32(video_adapter_t *, int, int, int, int, int); 477 #endif /* notyet */ 478 #endif /* !VGA_NO_MODE_CHANGE */ 479 480 static void dump_buffer(u_char *, size_t); 481 482 #define ISMAPPED(pa, width) \ 483 (((pa) <= (u_long)0x1000 - (width)) \ 484 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width))) 485 486 #define prologue(adp, flag, err) \ 487 if (!vga_init_done || !((adp)->va_flags & (flag))) \ 488 return (err) 489 490 /* a backdoor for the console driver */ 491 static int 492 vga_configure(int flags) 493 { 494 int i; 495 496 probe_adapters(); 497 for (i = 0; i < biosadapters; ++i) { 498 if (!probe_done(&biosadapter[i])) 499 continue; 500 biosadapter[i].va_flags |= V_ADP_INITIALIZED; 501 if (!config_done(&biosadapter[i])) { 502 if (vid_register(&biosadapter[i]) < 0) 503 continue; 504 biosadapter[i].va_flags |= V_ADP_REGISTERED; 505 } 506 } 507 if (vga_sub_configure != NULL) 508 (*vga_sub_configure)(flags); 509 510 return biosadapters; 511 } 512 513 /* local subroutines */ 514 515 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 516 /* construct the mode parameter map */ 517 static void 518 map_mode_table(u_char *map[], u_char *table, int max) 519 { 520 int i; 521 522 for(i = 0; i < max; ++i) 523 map[i] = table + i*V_MODE_PARAM_SIZE; 524 for(; i < V_MODE_MAP_SIZE; ++i) 525 map[i] = NULL; 526 } 527 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 528 529 static void 530 clear_mode_map(video_adapter_t *adp, u_char *map[], int max, int color) 531 { 532 video_info_t info; 533 int i; 534 535 /* 536 * NOTE: we don't touch `bios_vmode[]' because it is shared 537 * by all adapters. 538 */ 539 for(i = 0; i < max; ++i) { 540 if (vga_get_info(adp, i, &info)) 541 continue; 542 if ((info.vi_flags & V_INFO_COLOR) != color) 543 map[i] = NULL; 544 } 545 } 546 547 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 548 /* map the non-standard video mode to a known mode number */ 549 static int 550 map_mode_num(int mode) 551 { 552 static struct { 553 int from; 554 int to; 555 } mode_map[] = { 556 { M_ENH_B80x43, M_ENH_B80x25 }, 557 { M_ENH_C80x43, M_ENH_C80x25 }, 558 { M_VGA_M80x30, M_VGA_M80x25 }, 559 { M_VGA_C80x30, M_VGA_C80x25 }, 560 { M_VGA_M80x50, M_VGA_M80x25 }, 561 { M_VGA_C80x50, M_VGA_C80x25 }, 562 { M_VGA_M80x60, M_VGA_M80x25 }, 563 { M_VGA_C80x60, M_VGA_C80x25 }, 564 #ifdef VGA_WIDTH90 565 { M_VGA_M90x25, M_VGA_M80x25 }, 566 { M_VGA_C90x25, M_VGA_C80x25 }, 567 { M_VGA_M90x30, M_VGA_M80x25 }, 568 { M_VGA_C90x30, M_VGA_C80x25 }, 569 { M_VGA_M90x43, M_ENH_B80x25 }, 570 { M_VGA_C90x43, M_ENH_C80x25 }, 571 { M_VGA_M90x50, M_VGA_M80x25 }, 572 { M_VGA_C90x50, M_VGA_C80x25 }, 573 { M_VGA_M90x60, M_VGA_M80x25 }, 574 { M_VGA_C90x60, M_VGA_C80x25 }, 575 #endif 576 { M_VGA_MODEX, M_VGA_CG320 }, 577 }; 578 int i; 579 580 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 581 if (mode_map[i].from == mode) 582 return mode_map[i].to; 583 } 584 return mode; 585 } 586 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 587 588 /* map a generic video mode to a known mode number */ 589 static int 590 map_gen_mode_num(int type, int color, int mode) 591 { 592 static struct { 593 int from; 594 int to_color; 595 int to_mono; 596 } mode_map[] = { 597 { M_TEXT_80x30, M_VGA_C80x30, M_VGA_M80x30, }, 598 { M_TEXT_80x43, M_ENH_C80x43, M_ENH_B80x43, }, 599 { M_TEXT_80x50, M_VGA_C80x50, M_VGA_M80x50, }, 600 { M_TEXT_80x60, M_VGA_C80x60, M_VGA_M80x60, }, 601 }; 602 int i; 603 604 if (mode == M_TEXT_80x25) { 605 switch (type) { 606 607 case KD_VGA: 608 if (color) 609 return M_VGA_C80x25; 610 else 611 return M_VGA_M80x25; 612 break; 613 614 case KD_EGA: 615 if (color) 616 return M_ENH_C80x25; 617 else 618 return M_EGAMONO80x25; 619 break; 620 621 case KD_CGA: 622 return M_C80x25; 623 624 case KD_MONO: 625 case KD_HERCULES: 626 return M_EGAMONO80x25; /* XXX: this name is confusing */ 627 628 default: 629 return -1; 630 } 631 } 632 633 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 634 if (mode_map[i].from == mode) 635 return ((color) ? mode_map[i].to_color : mode_map[i].to_mono); 636 } 637 return mode; 638 } 639 640 /* turn the BIOS video number into our video mode number */ 641 static int 642 map_bios_mode_num(int type, int color, int bios_mode) 643 { 644 static int cga_modes[7] = { 645 M_B40x25, M_C40x25, /* 0, 1 */ 646 M_B80x25, M_C80x25, /* 2, 3 */ 647 M_BG320, M_CG320, 648 M_BG640, 649 }; 650 static int ega_modes[17] = { 651 M_ENH_B40x25, M_ENH_C40x25, /* 0, 1 */ 652 M_ENH_B80x25, M_ENH_C80x25, /* 2, 3 */ 653 M_BG320, M_CG320, 654 M_BG640, 655 M_EGAMONO80x25, /* 7 */ 656 8, 9, 10, 11, 12, 657 M_CG320_D, 658 M_CG640_E, 659 M_ENHMONOAPA2, /* XXX: video momery > 64K */ 660 M_ENH_CG640, /* XXX: video momery > 64K */ 661 }; 662 static int vga_modes[20] = { 663 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */ 664 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */ 665 M_BG320, M_CG320, 666 M_BG640, 667 M_VGA_M80x25, /* 7 */ 668 8, 9, 10, 11, 12, 669 M_CG320_D, 670 M_CG640_E, 671 M_ENHMONOAPA2, 672 M_ENH_CG640, 673 M_BG640x480, M_CG640x480, 674 M_VGA_CG320, 675 }; 676 677 switch (type) { 678 679 case KD_VGA: 680 if (bios_mode < sizeof(vga_modes)/sizeof(vga_modes[0])) 681 return vga_modes[bios_mode]; 682 else if (color) 683 return M_VGA_C80x25; 684 else 685 return M_VGA_M80x25; 686 break; 687 688 case KD_EGA: 689 if (bios_mode < sizeof(ega_modes)/sizeof(ega_modes[0])) 690 return ega_modes[bios_mode]; 691 else if (color) 692 return M_ENH_C80x25; 693 else 694 return M_EGAMONO80x25; 695 break; 696 697 case KD_CGA: 698 if (bios_mode < sizeof(cga_modes)/sizeof(cga_modes[0])) 699 return cga_modes[bios_mode]; 700 else 701 return M_C80x25; 702 break; 703 704 case KD_MONO: 705 case KD_HERCULES: 706 return M_EGAMONO80x25; /* XXX: this name is confusing */ 707 708 default: 709 break; 710 } 711 return -1; 712 } 713 714 /* look up a parameter table entry */ 715 static u_char 716 *get_mode_param(int mode) 717 { 718 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 719 if (mode >= V_MODE_MAP_SIZE) 720 mode = map_mode_num(mode); 721 #endif 722 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE)) 723 return mode_map[mode]; 724 else 725 return NULL; 726 } 727 728 #ifndef VGA_NO_BIOS 729 static void 730 fill_adapter_param(int code, video_adapter_t *adp) 731 { 732 static struct { 733 int primary; 734 int secondary; 735 } dcc[] = { 736 { DCC_MONO, DCC_EGA40 /* CGA monitor */ }, 737 { DCC_MONO, DCC_EGA80 /* CGA monitor */ }, 738 { DCC_MONO, DCC_EGA80 }, 739 { DCC_MONO, DCC_EGA80 }, 740 { DCC_CGA40, DCC_EGAMONO }, 741 { DCC_CGA80, DCC_EGAMONO }, 742 { DCC_EGA40 /* CGA monitor */, DCC_MONO}, 743 { DCC_EGA80 /* CGA monitor */, DCC_MONO}, 744 { DCC_EGA80, DCC_MONO }, 745 { DCC_EGA80, DCC_MONO }, 746 { DCC_EGAMONO, DCC_CGA40 }, 747 { DCC_EGAMONO, DCC_CGA80 }, 748 }; 749 750 if ((code < 0) || (code >= sizeof(dcc)/sizeof(dcc[0]))) { 751 adp[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 752 adp[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 753 } else { 754 adp[V_ADP_PRIMARY] = adapter_init_value[dcc[code].primary]; 755 adp[V_ADP_SECONDARY] = adapter_init_value[dcc[code].secondary]; 756 } 757 } 758 #endif /* VGA_NO_BIOS */ 759 760 static int 761 verify_adapter(video_adapter_t *adp) 762 { 763 vm_offset_t buf; 764 u_int16_t v; 765 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 766 u_int32_t p; 767 #endif 768 769 buf = BIOS_PADDRTOVADDR(adp->va_window); 770 v = readw(buf); 771 writew(buf, 0xA55A); 772 if (readw(buf) != 0xA55A) 773 return ENXIO; 774 writew(buf, v); 775 776 switch (adp->va_type) { 777 778 case KD_EGA: 779 outb(adp->va_crtc_addr, 7); 780 if (inb(adp->va_crtc_addr) == 7) { 781 adp->va_type = KD_VGA; 782 adp->va_name = "vga"; 783 adp->va_flags |= V_ADP_STATESAVE | V_ADP_PALETTE; 784 } 785 adp->va_flags |= V_ADP_STATELOAD | V_ADP_BORDER; 786 /* the color adapter may be in the 40x25 mode... XXX */ 787 788 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 789 /* get the BIOS video mode pointer */ 790 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8); 791 p = BIOS_SADDRTOLADDR(p); 792 if (ISMAPPED(p, sizeof(u_int32_t))) { 793 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p); 794 p = BIOS_SADDRTOLADDR(p); 795 if (ISMAPPED(p, V_MODE_PARAM_SIZE)) 796 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p); 797 } 798 #endif 799 break; 800 801 case KD_CGA: 802 adp->va_flags |= V_ADP_COLOR | V_ADP_BORDER; 803 /* may be in the 40x25 mode... XXX */ 804 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 805 /* get the BIOS video mode pointer */ 806 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 807 p = BIOS_SADDRTOLADDR(p); 808 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 809 #endif 810 break; 811 812 case KD_MONO: 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(0x1d*4); 816 p = BIOS_SADDRTOLADDR(p); 817 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 818 #endif 819 break; 820 } 821 822 return 0; 823 } 824 825 static void 826 update_adapter_info(video_adapter_t *adp, video_info_t *info) 827 { 828 adp->va_flags &= ~V_ADP_COLOR; 829 adp->va_flags |= 830 (info->vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; 831 adp->va_crtc_addr = 832 (adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; 833 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window); 834 adp->va_window_size = info->vi_window_size; 835 adp->va_window_gran = info->vi_window_gran; 836 adp->va_window_orig = 0; 837 /* XXX */ 838 adp->va_buffer = info->vi_buffer; 839 adp->va_buffer_size = info->vi_buffer_size; 840 if (info->vi_mem_model == V_INFO_MM_VGAX) { 841 adp->va_line_width = info->vi_width/2; 842 } else if (info->vi_flags & V_INFO_GRAPHICS) { 843 switch (info->vi_depth/info->vi_planes) { 844 case 1: 845 adp->va_line_width = info->vi_width/8; 846 break; 847 case 2: 848 adp->va_line_width = info->vi_width/4; 849 break; 850 case 4: 851 adp->va_line_width = info->vi_width/2; 852 break; 853 case 8: 854 default: /* shouldn't happen */ 855 adp->va_line_width = info->vi_width; 856 break; 857 } 858 } else { 859 adp->va_line_width = info->vi_width; 860 } 861 adp->va_disp_start.x = 0; 862 adp->va_disp_start.y = 0; 863 bcopy(info, &adp->va_info, sizeof(adp->va_info)); 864 } 865 866 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 867 /* compare two parameter table entries */ 868 static int 869 comp_adpregs(u_char *buf1, u_char *buf2) 870 { 871 static struct { 872 u_char mask; 873 } params[V_MODE_PARAM_SIZE] = { 874 {0xff}, {0x00}, {0xff}, /* COLS}, ROWS}, POINTS */ 875 {0x00}, {0x00}, /* page length */ 876 {0xfe}, {0xff}, {0xff}, {0xff}, /* sequencer registers */ 877 {0xf3}, /* misc register */ 878 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, /* CRTC */ 879 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, 880 {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, 881 {0x00}, {0xff}, {0x7f}, {0xff}, {0xff}, 882 {0x7f}, {0xff}, {0xff}, {0xef}, {0xff}, 883 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* attribute controller regs */ 884 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 885 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 886 {0xff}, {0xff}, {0xff}, {0xff}, {0xf0}, 887 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* GDC register */ 888 {0xff}, {0xff}, {0xff}, {0xff}, 889 }; 890 int identical = TRUE; 891 int i; 892 893 if ((buf1 == NULL) || (buf2 == NULL)) 894 return COMP_DIFFERENT; 895 896 for (i = 0; i < sizeof(params)/sizeof(params[0]); ++i) { 897 if (params[i].mask == 0) /* don't care */ 898 continue; 899 if ((buf1[i] & params[i].mask) != (buf2[i] & params[i].mask)) 900 return COMP_DIFFERENT; 901 if (buf1[i] != buf2[i]) 902 identical = FALSE; 903 } 904 return (identical) ? COMP_IDENTICAL : COMP_SIMILAR; 905 } 906 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 907 908 /* probe video adapters and return the number of detected adapters */ 909 static int 910 probe_adapters(void) 911 { 912 video_adapter_t *adp; 913 video_info_t info; 914 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 915 u_char *mp; 916 #endif 917 int i; 918 919 /* do this test only once */ 920 if (vga_init_done) 921 return biosadapters; 922 vga_init_done = TRUE; 923 924 /* 925 * Locate display adapters. 926 * The AT architecture supports upto two adapters. `syscons' allows 927 * the following combinations of adapters: 928 * 1) MDA + CGA 929 * 2) MDA + EGA/VGA color 930 * 3) CGA + EGA/VGA mono 931 * Note that `syscons' doesn't bother with MCGA as it is only 932 * avaiable for low end PS/2 models which has 80286 or earlier CPUs, 933 * thus, they are not running FreeBSD! 934 * When there are two adapaters in the system, one becomes `primary' 935 * and the other `secondary'. The EGA adapter has a set of DIP 936 * switches on board for this information and the EGA BIOS copies 937 * it in the BIOS data area BIOSDATA_VIDEOSWITCH (40:88). 938 * The VGA BIOS has more sophisticated mechanism and has this 939 * information in BIOSDATA_DCCINDEX (40:8a), but it also maintains 940 * compatibility with the EGA BIOS by updating BIOSDATA_VIDEOSWITCH. 941 */ 942 943 /* 944 * Check rtc and BIOS data area. 945 * XXX: we don't use BIOSDATA_EQUIPMENT, since it is not a dead 946 * copy of RTC_EQUIPMENT. Bits 4 and 5 of ETC_EQUIPMENT are 947 * zeros for EGA and VGA. However, the EGA/VGA BIOS sets 948 * these bits in BIOSDATA_EQUIPMENT according to the monitor 949 * type detected. 950 */ 951 #ifndef VGA_NO_BIOS 952 if (*(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8)) { 953 /* EGA/VGA BIOS is present */ 954 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 955 biosadapter); 956 } else { 957 switch ((rtcin(RTC_EQUIPMENT) >> 4) & 3) { /* bit 4 and 5 */ 958 case 0: 959 /* EGA/VGA: shouldn't be happening */ 960 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 961 biosadapter); 962 break; 963 case 1: 964 /* CGA 40x25 */ 965 /* FIXME: switch to the 80x25 mode? XXX */ 966 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA40]; 967 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 968 break; 969 case 2: 970 /* CGA 80x25 */ 971 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA80]; 972 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 973 break; 974 case 3: 975 /* MDA */ 976 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 977 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 978 break; 979 } 980 } 981 #else 982 /* assume EGA/VGA? XXX */ 983 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_EGA80]; 984 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 985 #endif /* VGA_NO_BIOS */ 986 987 biosadapters = 0; 988 if (verify_adapter(&biosadapter[V_ADP_SECONDARY]) == 0) { 989 ++biosadapters; 990 biosadapter[V_ADP_SECONDARY].va_flags |= V_ADP_PROBED; 991 biosadapter[V_ADP_SECONDARY].va_mode = 992 biosadapter[V_ADP_SECONDARY].va_initial_mode = 993 map_bios_mode_num(biosadapter[V_ADP_SECONDARY].va_type, 994 biosadapter[V_ADP_SECONDARY].va_flags 995 & V_ADP_COLOR, 996 biosadapter[V_ADP_SECONDARY].va_initial_bios_mode); 997 } else { 998 biosadapter[V_ADP_SECONDARY].va_type = -1; 999 } 1000 if (verify_adapter(&biosadapter[V_ADP_PRIMARY]) == 0) { 1001 ++biosadapters; 1002 biosadapter[V_ADP_PRIMARY].va_flags |= V_ADP_PROBED; 1003 #ifndef VGA_NO_BIOS 1004 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 1005 readb(BIOS_PADDRTOVADDR(0x449)); 1006 #else 1007 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 3; /* XXX */ 1008 #endif 1009 biosadapter[V_ADP_PRIMARY].va_mode = 1010 biosadapter[V_ADP_PRIMARY].va_initial_mode = 1011 map_bios_mode_num(biosadapter[V_ADP_PRIMARY].va_type, 1012 biosadapter[V_ADP_PRIMARY].va_flags & V_ADP_COLOR, 1013 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode); 1014 } else { 1015 biosadapter[V_ADP_PRIMARY] = biosadapter[V_ADP_SECONDARY]; 1016 biosadapter[V_ADP_SECONDARY].va_type = -1; 1017 } 1018 if (biosadapters == 0) 1019 return biosadapters; 1020 biosadapter[V_ADP_PRIMARY].va_unit = V_ADP_PRIMARY; 1021 biosadapter[V_ADP_SECONDARY].va_unit = V_ADP_SECONDARY; 1022 1023 #if 0 /* we don't need these... */ 1024 fb_init_struct(&biosadapter[V_ADP_PRIMARY], ...); 1025 fb_init_struct(&biosadapter[V_ADP_SECONDARY], ...); 1026 #endif 1027 1028 #if notyet 1029 /* 1030 * We cannot have two video adapter of the same type; there must be 1031 * only one of color or mono adapter, or one each of them. 1032 */ 1033 if (biosadapters > 1) { 1034 if (!((biosadapter[0].va_flags ^ biosadapter[1].va_flags) 1035 & V_ADP_COLOR)) 1036 /* we have two mono or color adapters!! */ 1037 return (biosadapters = 0); 1038 } 1039 #endif 1040 1041 /* 1042 * Ensure a zero start address. This is mainly to recover after 1043 * switching from pcvt using userconfig(). The registers are w/o 1044 * for old hardware so it's too hard to relocate the active screen 1045 * memory. 1046 * This must be done before vga_save_state() for VGA. 1047 */ 1048 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 12); 1049 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1050 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 13); 1051 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1052 1053 /* the video mode parameter table in EGA/VGA BIOS */ 1054 /* NOTE: there can be only one EGA/VGA, wheather color or mono, 1055 * recognized by the video BIOS. 1056 */ 1057 if ((biosadapter[V_ADP_PRIMARY].va_type == KD_EGA) || 1058 (biosadapter[V_ADP_PRIMARY].va_type == KD_VGA)) { 1059 adp = &biosadapter[V_ADP_PRIMARY]; 1060 } else if ((biosadapter[V_ADP_SECONDARY].va_type == KD_EGA) || 1061 (biosadapter[V_ADP_SECONDARY].va_type == KD_VGA)) { 1062 adp = &biosadapter[V_ADP_SECONDARY]; 1063 } else { 1064 adp = NULL; 1065 } 1066 bzero(mode_map, sizeof(mode_map)); 1067 if (adp != NULL) { 1068 if (adp->va_type == KD_VGA) { 1069 vga_save_state(adp, &adpstate, sizeof(adpstate)); 1070 for(i = 0; i < 16; i++) 1071 adp->va_palette_regs[i] = adpstate.regs[35 + i]; 1072 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1073 mode_map[adp->va_initial_mode] = adpstate.regs; 1074 rows_offset = 1; 1075 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1076 if (video_mode_ptr == NULL) { 1077 mode_map[adp->va_initial_mode] = adpstate.regs; 1078 rows_offset = 1; 1079 } else { 1080 /* discard the table if we are not familiar with it... */ 1081 map_mode_table(mode_map, video_mode_ptr, M_VGA_CG320 + 1); 1082 mp = get_mode_param(adp->va_initial_mode); 1083 if (mp != NULL) 1084 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs)); 1085 switch (comp_adpregs(adpstate.regs, mp)) { 1086 case COMP_IDENTICAL: 1087 /* 1088 * OK, this parameter table looks reasonably familiar 1089 * to us... 1090 */ 1091 /* 1092 * This is a kludge for Toshiba DynaBook SS433 1093 * whose BIOS video mode table entry has the actual # 1094 * of rows at the offset 1; BIOSes from other 1095 * manufacturers store the # of rows - 1 there. XXX 1096 */ 1097 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1098 break; 1099 1100 case COMP_SIMILAR: 1101 /* 1102 * Not exactly the same, but similar enough to be 1103 * trusted. However, use the saved register values 1104 * for the initial mode and other modes which are 1105 * based on the initial mode. 1106 */ 1107 mode_map[adp->va_initial_mode] = adpstate.regs; 1108 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1109 adpstate.regs[1] -= rows_offset - 1; 1110 break; 1111 1112 case COMP_DIFFERENT: 1113 default: 1114 /* 1115 * Don't use the paramter table in BIOS. It doesn't 1116 * look familiar to us. Video mode switching is allowed 1117 * only if the new mode is the same as or based on 1118 * the initial mode. 1119 */ 1120 video_mode_ptr = NULL; 1121 bzero(mode_map, sizeof(mode_map)); 1122 mode_map[adp->va_initial_mode] = adpstate.regs; 1123 rows_offset = 1; 1124 break; 1125 } 1126 } 1127 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1128 1129 #ifndef VGA_NO_MODE_CHANGE 1130 adp->va_flags |= V_ADP_MODECHANGE; 1131 #endif 1132 #ifndef VGA_NO_FONT_LOADING 1133 adp->va_flags |= V_ADP_FONT; 1134 #endif 1135 } else if (adp->va_type == KD_EGA) { 1136 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1137 rows_offset = 1; 1138 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1139 if (video_mode_ptr == NULL) { 1140 rows_offset = 1; 1141 } else { 1142 map_mode_table(mode_map, video_mode_ptr, M_ENH_C80x25 + 1); 1143 /* XXX how can one validate the EGA table... */ 1144 mp = get_mode_param(adp->va_initial_mode); 1145 if (mp != NULL) { 1146 adp->va_flags |= V_ADP_MODECHANGE; 1147 #ifndef VGA_NO_FONT_LOADING 1148 adp->va_flags |= V_ADP_FONT; 1149 #endif 1150 rows_offset = 1; 1151 } else { 1152 /* 1153 * This is serious. We will not be able to switch video 1154 * modes at all... 1155 */ 1156 video_mode_ptr = NULL; 1157 bzero(mode_map, sizeof(mode_map)); 1158 rows_offset = 1; 1159 } 1160 } 1161 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1162 } 1163 } 1164 1165 /* remove conflicting modes if we have more than one adapter */ 1166 if (biosadapters > 0) { 1167 for (i = 0; i < biosadapters; ++i) { 1168 if (!(biosadapter[i].va_flags & V_ADP_MODECHANGE)) 1169 continue; 1170 clear_mode_map(&biosadapter[i], mode_map, M_VGA_CG320 + 1, 1171 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1172 V_INFO_COLOR : 0); 1173 if ((biosadapter[i].va_type == KD_VGA) 1174 || (biosadapter[i].va_type == KD_EGA)) { 1175 biosadapter[i].va_io_base = 1176 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1177 IO_VGA : IO_MDA; 1178 biosadapter[i].va_io_size = 32; 1179 } 1180 } 1181 } 1182 1183 /* buffer address */ 1184 vga_get_info(&biosadapter[V_ADP_PRIMARY], 1185 biosadapter[V_ADP_PRIMARY].va_initial_mode, &info); 1186 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1187 update_adapter_info(&biosadapter[V_ADP_PRIMARY], &info); 1188 1189 if (biosadapters > 1) { 1190 vga_get_info(&biosadapter[V_ADP_SECONDARY], 1191 biosadapter[V_ADP_SECONDARY].va_initial_mode, &info); 1192 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1193 update_adapter_info(&biosadapter[V_ADP_SECONDARY], &info); 1194 } 1195 1196 /* 1197 * XXX: we should verify the following values for the primary adapter... 1198 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463); 1199 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02) 1200 * ? 0 : V_ADP_COLOR; 1201 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a); 1202 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484); 1203 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485); 1204 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c); 1205 */ 1206 1207 return biosadapters; 1208 } 1209 1210 /* set the scan line length in pixel */ 1211 static int 1212 set_line_length(video_adapter_t *adp, int pixel) 1213 { 1214 u_char *mp; 1215 int ppw; /* pixels per word */ 1216 int bpl; /* bytes per line */ 1217 int count; 1218 1219 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1220 return ENODEV; 1221 mp = get_mode_param(adp->va_mode); 1222 if (mp == NULL) 1223 return EINVAL; 1224 1225 switch (adp->va_info.vi_mem_model) { 1226 case V_INFO_MM_PLANAR: 1227 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1228 count = (pixel + ppw - 1)/ppw/2; 1229 bpl = ((pixel + ppw - 1)/ppw/2)*4; 1230 break; 1231 case V_INFO_MM_PACKED: 1232 count = (pixel + 7)/8; 1233 bpl = ((pixel + 7)/8)*8; 1234 break; 1235 case V_INFO_MM_TEXT: 1236 count = (pixel + 7)/8; /* columns */ 1237 bpl = (pixel + 7)/8; /* columns */ 1238 break; 1239 default: 1240 return ENODEV; 1241 } 1242 1243 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */ 1244 count *= 2; /* byte mode */ 1245 outb(adp->va_crtc_addr, 0x13); 1246 outb(adp->va_crtc_addr + 1, count); 1247 adp->va_line_width = bpl; 1248 1249 return 0; 1250 } 1251 1252 static int 1253 set_display_start(video_adapter_t *adp, int x, int y) 1254 { 1255 int off; /* byte offset (graphics mode)/word offset (text mode) */ 1256 int poff; /* pixel offset */ 1257 int roff; /* row offset */ 1258 int ppb; /* pixels per byte */ 1259 1260 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1261 x &= ~7; 1262 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) { 1263 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1264 off = y*adp->va_line_width + x/ppb; 1265 roff = 0; 1266 poff = x%ppb; 1267 } else { 1268 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1269 outb(TSIDX, 1); 1270 if (inb(TSREG) & 1) 1271 ppb = 9; 1272 else 1273 ppb = 8; 1274 } else { 1275 ppb = 8; 1276 } 1277 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb; 1278 roff = y%adp->va_info.vi_cheight; 1279 /* FIXME: is this correct? XXX */ 1280 if (ppb == 8) 1281 poff = x%ppb; 1282 else 1283 poff = (x + 8)%ppb; 1284 } 1285 1286 /* start address */ 1287 outb(adp->va_crtc_addr, 0xc); /* high */ 1288 outb(adp->va_crtc_addr + 1, off >> 8); 1289 outb(adp->va_crtc_addr, 0xd); /* low */ 1290 outb(adp->va_crtc_addr + 1, off & 0xff); 1291 1292 /* horizontal pel pan */ 1293 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1294 inb(adp->va_crtc_addr + 6); 1295 outb(ATC, 0x13 | 0x20); 1296 outb(ATC, poff); 1297 inb(adp->va_crtc_addr + 6); 1298 outb(ATC, 0x20); 1299 } 1300 1301 /* preset raw scan */ 1302 outb(adp->va_crtc_addr, 8); 1303 outb(adp->va_crtc_addr + 1, roff); 1304 1305 adp->va_disp_start.x = x; 1306 adp->va_disp_start.y = y; 1307 return 0; 1308 } 1309 1310 #ifndef VGA_NO_MODE_CHANGE 1311 #ifdef __i386__ /* XXX */ 1312 static void 1313 fill(int val, void *d, size_t size) 1314 { 1315 u_char *p = d; 1316 1317 while (size-- > 0) 1318 *p++ = val; 1319 } 1320 #endif /* __i386__ */ 1321 1322 static void 1323 filll_io(int val, vm_offset_t d, size_t size) 1324 { 1325 while (size-- > 0) { 1326 writel(d, val); 1327 d += sizeof(u_int32_t); 1328 } 1329 } 1330 #endif /* !VGA_NO_MODE_CHANGE */ 1331 1332 /* entry points */ 1333 1334 #if 0 1335 static int 1336 vga_nop(void) 1337 { 1338 return 0; 1339 } 1340 #endif 1341 1342 static int 1343 vga_error(void) 1344 { 1345 return ENODEV; 1346 } 1347 1348 static int 1349 vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 1350 { 1351 probe_adapters(); 1352 if (unit >= biosadapters) 1353 return ENXIO; 1354 1355 *adpp = &biosadapter[unit]; 1356 1357 return 0; 1358 } 1359 1360 static int 1361 vga_init(int unit, video_adapter_t *adp, int flags) 1362 { 1363 if ((unit >= biosadapters) || (adp == NULL) || !probe_done(adp)) 1364 return ENXIO; 1365 1366 if (!init_done(adp)) { 1367 /* nothing to do really... */ 1368 adp->va_flags |= V_ADP_INITIALIZED; 1369 } 1370 1371 if (!config_done(adp)) { 1372 if (vid_register(adp) < 0) 1373 return ENXIO; 1374 adp->va_flags |= V_ADP_REGISTERED; 1375 } 1376 if (vga_sub_configure != NULL) 1377 (*vga_sub_configure)(0); 1378 1379 return 0; 1380 } 1381 1382 /* 1383 * get_info(): 1384 * Return the video_info structure of the requested video mode. 1385 * 1386 * all adapters 1387 */ 1388 static int 1389 vga_get_info(video_adapter_t *adp, int mode, video_info_t *info) 1390 { 1391 int i; 1392 1393 if (!vga_init_done) 1394 return ENXIO; 1395 1396 mode = map_gen_mode_num(adp->va_type, adp->va_flags & V_ADP_COLOR, mode); 1397 #ifndef VGA_NO_MODE_CHANGE 1398 if (adp->va_flags & V_ADP_MODECHANGE) { 1399 /* 1400 * If the parameter table entry for this mode is not found, 1401 * the mode is not supported... 1402 */ 1403 if (get_mode_param(mode) == NULL) 1404 return EINVAL; 1405 } else 1406 #endif /* VGA_NO_MODE_CHANGE */ 1407 { 1408 /* 1409 * Even if we don't support video mode switching on this adapter, 1410 * the information on the initial (thus current) video mode 1411 * should be made available. 1412 */ 1413 if (mode != adp->va_initial_mode) 1414 return EINVAL; 1415 } 1416 1417 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1418 if (bios_vmode[i].vi_mode == NA) 1419 continue; 1420 if (mode == bios_vmode[i].vi_mode) { 1421 *info = bios_vmode[i]; 1422 /* XXX */ 1423 info->vi_buffer_size = info->vi_window_size*info->vi_planes; 1424 return 0; 1425 } 1426 } 1427 return EINVAL; 1428 } 1429 1430 /* 1431 * query_mode(): 1432 * Find a video mode matching the requested parameters. 1433 * Fields filled with 0 are considered "don't care" fields and 1434 * match any modes. 1435 * 1436 * all adapters 1437 */ 1438 static int 1439 vga_query_mode(video_adapter_t *adp, video_info_t *info) 1440 { 1441 int i; 1442 1443 if (!vga_init_done) 1444 return ENXIO; 1445 1446 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1447 if (bios_vmode[i].vi_mode == NA) 1448 continue; 1449 1450 if ((info->vi_width != 0) 1451 && (info->vi_width != bios_vmode[i].vi_width)) 1452 continue; 1453 if ((info->vi_height != 0) 1454 && (info->vi_height != bios_vmode[i].vi_height)) 1455 continue; 1456 if ((info->vi_cwidth != 0) 1457 && (info->vi_cwidth != bios_vmode[i].vi_cwidth)) 1458 continue; 1459 if ((info->vi_cheight != 0) 1460 && (info->vi_cheight != bios_vmode[i].vi_cheight)) 1461 continue; 1462 if ((info->vi_depth != 0) 1463 && (info->vi_depth != bios_vmode[i].vi_depth)) 1464 continue; 1465 if ((info->vi_planes != 0) 1466 && (info->vi_planes != bios_vmode[i].vi_planes)) 1467 continue; 1468 /* XXX: should check pixel format, memory model */ 1469 if ((info->vi_flags != 0) 1470 && (info->vi_flags != bios_vmode[i].vi_flags)) 1471 continue; 1472 1473 /* verify if this mode is supported on this adapter */ 1474 if (vga_get_info(adp, bios_vmode[i].vi_mode, info)) 1475 continue; 1476 return 0; 1477 } 1478 return ENODEV; 1479 } 1480 1481 /* 1482 * set_mode(): 1483 * Change the video mode. 1484 * 1485 * EGA/VGA 1486 */ 1487 1488 #ifndef VGA_NO_MODE_CHANGE 1489 #ifdef VGA_WIDTH90 1490 static void 1491 set_width90(adp_state_t *params) 1492 { 1493 /* 1494 * Based on code submitted by Kelly Yancey (kbyanc@freedomnet.com) 1495 * and alexv@sui.gda.itesm.mx. 1496 */ 1497 params->regs[5] |= 1; /* toggle 8 pixel wide fonts */ 1498 params->regs[10+0x0] = 0x6b; 1499 params->regs[10+0x1] = 0x59; 1500 params->regs[10+0x2] = 0x5a; 1501 params->regs[10+0x3] = 0x8e; 1502 params->regs[10+0x4] = 0x5e; 1503 params->regs[10+0x5] = 0x8a; 1504 params->regs[10+0x13] = 45; 1505 params->regs[35+0x13] = 0; 1506 } 1507 #endif /* VGA_WIDTH90 */ 1508 #endif /* !VGA_NO_MODE_CHANGE */ 1509 1510 static int 1511 vga_set_mode(video_adapter_t *adp, int mode) 1512 { 1513 #ifndef VGA_NO_MODE_CHANGE 1514 video_info_t info; 1515 adp_state_t params; 1516 1517 prologue(adp, V_ADP_MODECHANGE, ENODEV); 1518 1519 mode = map_gen_mode_num(adp->va_type, 1520 adp->va_flags & V_ADP_COLOR, mode); 1521 if (vga_get_info(adp, mode, &info)) 1522 return EINVAL; 1523 1524 #if VGA_DEBUG > 1 1525 printf("vga_set_mode(): setting mode %d\n", mode); 1526 #endif 1527 1528 params.sig = V_STATE_SIG; 1529 bcopy(get_mode_param(mode), params.regs, sizeof(params.regs)); 1530 1531 switch (mode) { 1532 #ifdef VGA_WIDTH90 1533 case M_VGA_C90x60: case M_VGA_M90x60: 1534 set_width90(¶ms); 1535 /* FALLTHROUGH */ 1536 #endif 1537 case M_VGA_C80x60: case M_VGA_M80x60: 1538 params.regs[2] = 0x08; 1539 params.regs[19] = 0x47; 1540 goto special_480l; 1541 1542 #ifdef VGA_WIDTH90 1543 case M_VGA_C90x30: case M_VGA_M90x30: 1544 set_width90(¶ms); 1545 /* FALLTHROUGH */ 1546 #endif 1547 case M_VGA_C80x30: case M_VGA_M80x30: 1548 params.regs[19] = 0x4f; 1549 special_480l: 1550 params.regs[9] |= 0xc0; 1551 params.regs[16] = 0x08; 1552 params.regs[17] = 0x3e; 1553 params.regs[26] = 0xea; 1554 params.regs[28] = 0xdf; 1555 params.regs[31] = 0xe7; 1556 params.regs[32] = 0x04; 1557 goto setup_mode; 1558 1559 #ifdef VGA_WIDTH90 1560 case M_VGA_C90x43: case M_VGA_M90x43: 1561 set_width90(¶ms); 1562 /* FALLTHROUGH */ 1563 #endif 1564 case M_ENH_C80x43: case M_ENH_B80x43: 1565 params.regs[28] = 87; 1566 goto special_80x50; 1567 1568 #ifdef VGA_WIDTH90 1569 case M_VGA_C90x50: case M_VGA_M90x50: 1570 set_width90(¶ms); 1571 /* FALLTHROUGH */ 1572 #endif 1573 case M_VGA_C80x50: case M_VGA_M80x50: 1574 special_80x50: 1575 params.regs[2] = 8; 1576 params.regs[19] = 7; 1577 goto setup_mode; 1578 1579 #ifdef VGA_WIDTH90 1580 case M_VGA_C90x25: case M_VGA_M90x25: 1581 set_width90(¶ms); 1582 /* FALLTHROUGH */ 1583 #endif 1584 case M_VGA_C40x25: case M_VGA_C80x25: 1585 case M_VGA_M80x25: 1586 case M_B40x25: case M_C40x25: 1587 case M_B80x25: case M_C80x25: 1588 case M_ENH_B40x25: case M_ENH_C40x25: 1589 case M_ENH_B80x25: case M_ENH_C80x25: 1590 case M_EGAMONO80x25: 1591 1592 setup_mode: 1593 vga_load_state(adp, ¶ms); 1594 break; 1595 1596 case M_VGA_MODEX: 1597 /* "unchain" the VGA mode */ 1598 params.regs[5-1+0x04] &= 0xf7; 1599 params.regs[5-1+0x04] |= 0x04; 1600 /* turn off doubleword mode */ 1601 params.regs[10+0x14] &= 0xbf; 1602 /* turn off word addressing */ 1603 params.regs[10+0x17] |= 0x40; 1604 /* set logical screen width */ 1605 params.regs[10+0x13] = 80; 1606 /* set 240 lines */ 1607 params.regs[10+0x11] = 0x2c; 1608 params.regs[10+0x06] = 0x0d; 1609 params.regs[10+0x07] = 0x3e; 1610 params.regs[10+0x10] = 0xea; 1611 params.regs[10+0x11] = 0xac; 1612 params.regs[10+0x12] = 0xdf; 1613 params.regs[10+0x15] = 0xe7; 1614 params.regs[10+0x16] = 0x06; 1615 /* set vertical sync polarity to reflect aspect ratio */ 1616 params.regs[9] = 0xe3; 1617 goto setup_grmode; 1618 1619 case M_BG320: case M_CG320: case M_BG640: 1620 case M_CG320_D: case M_CG640_E: 1621 case M_CG640x350: case M_ENH_CG640: 1622 case M_BG640x480: case M_CG640x480: case M_VGA_CG320: 1623 1624 setup_grmode: 1625 vga_load_state(adp, ¶ms); 1626 break; 1627 1628 default: 1629 return EINVAL; 1630 } 1631 1632 adp->va_mode = mode; 1633 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1634 update_adapter_info(adp, &info); 1635 1636 /* move hardware cursor out of the way */ 1637 (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1); 1638 1639 return 0; 1640 #else /* VGA_NO_MODE_CHANGE */ 1641 return ENODEV; 1642 #endif /* VGA_NO_MODE_CHANGE */ 1643 } 1644 1645 #ifndef VGA_NO_FONT_LOADING 1646 1647 static void 1648 set_font_mode(video_adapter_t *adp, u_char *buf) 1649 { 1650 u_char *mp; 1651 1652 crit_enter(); 1653 1654 /* save register values */ 1655 if (adp->va_type == KD_VGA) { 1656 outb(TSIDX, 0x02); buf[0] = inb(TSREG); 1657 outb(TSIDX, 0x04); buf[1] = inb(TSREG); 1658 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG); 1659 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG); 1660 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG); 1661 inb(adp->va_crtc_addr + 6); 1662 outb(ATC, 0x10); buf[5] = inb(ATC + 1); 1663 } else /* if (adp->va_type == KD_EGA) */ { 1664 /* 1665 * EGA cannot be read; copy parameters from the mode parameter 1666 * table. 1667 */ 1668 mp = get_mode_param(adp->va_mode); 1669 buf[0] = mp[5 + 0x02 - 1]; 1670 buf[1] = mp[5 + 0x04 - 1]; 1671 buf[2] = mp[55 + 0x04]; 1672 buf[3] = mp[55 + 0x05]; 1673 buf[4] = mp[55 + 0x06]; 1674 buf[5] = mp[35 + 0x10]; 1675 } 1676 1677 /* setup vga for loading fonts */ 1678 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1679 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01); 1680 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1681 outb(ATC, 0x20); /* enable palette */ 1682 1683 #if VGA_SLOW_IOACCESS 1684 #ifdef VGA_ALT_SEQACCESS 1685 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1686 #endif 1687 outb(TSIDX, 0x02); outb(TSREG, 0x04); 1688 outb(TSIDX, 0x04); outb(TSREG, 0x07); 1689 #ifdef VGA_ALT_SEQACCESS 1690 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1691 #endif 1692 outb(GDCIDX, 0x04); outb(GDCREG, 0x02); 1693 outb(GDCIDX, 0x05); outb(GDCREG, 0x00); 1694 outb(GDCIDX, 0x06); outb(GDCREG, 0x04); 1695 #else /* VGA_SLOW_IOACCESS */ 1696 #ifdef VGA_ALT_SEQACCESS 1697 outw(TSIDX, 0x0100); 1698 #endif 1699 outw(TSIDX, 0x0402); 1700 outw(TSIDX, 0x0704); 1701 #ifdef VGA_ALT_SEQACCESS 1702 outw(TSIDX, 0x0300); 1703 #endif 1704 outw(GDCIDX, 0x0204); 1705 outw(GDCIDX, 0x0005); 1706 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */ 1707 #endif /* VGA_SLOW_IOACCESS */ 1708 1709 crit_exit(); 1710 } 1711 1712 static void 1713 set_normal_mode(video_adapter_t *adp, u_char *buf) 1714 { 1715 crit_enter(); 1716 1717 /* setup vga for normal operation mode again */ 1718 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1719 outb(ATC, 0x10); outb(ATC, buf[5]); 1720 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1721 outb(ATC, 0x20); /* enable palette */ 1722 1723 #if VGA_SLOW_IOACCESS 1724 #ifdef VGA_ALT_SEQACCESS 1725 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1726 #endif 1727 outb(TSIDX, 0x02); outb(TSREG, buf[0]); 1728 outb(TSIDX, 0x04); outb(TSREG, buf[1]); 1729 #ifdef VGA_ALT_SEQACCESS 1730 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1731 #endif 1732 outb(GDCIDX, 0x04); outb(GDCREG, buf[2]); 1733 outb(GDCIDX, 0x05); outb(GDCREG, buf[3]); 1734 if (adp->va_crtc_addr == MONO_CRTC) { 1735 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x08); 1736 } else { 1737 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x0c); 1738 } 1739 #else /* VGA_SLOW_IOACCESS */ 1740 #ifdef VGA_ALT_SEQACCESS 1741 outw(TSIDX, 0x0100); 1742 #endif 1743 outw(TSIDX, 0x0002 | (buf[0] << 8)); 1744 outw(TSIDX, 0x0004 | (buf[1] << 8)); 1745 #ifdef VGA_ALT_SEQACCESS 1746 outw(TSIDX, 0x0300); 1747 #endif 1748 outw(GDCIDX, 0x0004 | (buf[2] << 8)); 1749 outw(GDCIDX, 0x0005 | (buf[3] << 8)); 1750 if (adp->va_crtc_addr == MONO_CRTC) 1751 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x08)<<8)); 1752 else 1753 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8)); 1754 #endif /* VGA_SLOW_IOACCESS */ 1755 1756 crit_exit(); 1757 } 1758 1759 #endif /* VGA_NO_FONT_LOADING */ 1760 1761 /* 1762 * save_font(): 1763 * Read the font data in the requested font page from the video adapter. 1764 * 1765 * EGA/VGA 1766 */ 1767 static int 1768 vga_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1769 int ch, int count) 1770 { 1771 #ifndef VGA_NO_FONT_LOADING 1772 u_char buf[PARAM_BUFSIZE]; 1773 u_int32_t segment; 1774 int c; 1775 #ifdef VGA_ALT_SEQACCESS 1776 u_char val = 0; 1777 #endif 1778 1779 prologue(adp, V_ADP_FONT, ENODEV); 1780 1781 if (fontsize < 14) { 1782 /* FONT_8 */ 1783 fontsize = 8; 1784 } else if (fontsize >= 32) { 1785 fontsize = 32; 1786 } else if (fontsize >= 16) { 1787 /* FONT_16 */ 1788 fontsize = 16; 1789 } else { 1790 /* FONT_14 */ 1791 fontsize = 14; 1792 } 1793 1794 if (page < 0 || page >= 8) 1795 return EINVAL; 1796 segment = FONT_BUF + 0x4000*page; 1797 if (page > 3) 1798 segment -= 0xe000; 1799 1800 #ifdef VGA_ALT_SEQACCESS 1801 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1802 crit_enter(); 1803 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1804 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1805 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1806 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1807 crit_exit(); 1808 } 1809 #endif 1810 1811 set_font_mode(adp, buf); 1812 if (fontsize == 32) { 1813 bcopy_fromio(segment + ch*32, data, fontsize*count); 1814 } else { 1815 for (c = ch; count > 0; ++c, --count) { 1816 bcopy_fromio(segment + c*32, data, fontsize); 1817 data += fontsize; 1818 } 1819 } 1820 set_normal_mode(adp, buf); 1821 1822 #ifdef VGA_ALT_SEQACCESS 1823 if (adp->va_type == KD_VGA) { 1824 crit_enter(); 1825 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1826 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1827 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1828 crit_exit(); 1829 } 1830 #endif 1831 1832 return 0; 1833 #else /* VGA_NO_FONT_LOADING */ 1834 return ENODEV; 1835 #endif /* VGA_NO_FONT_LOADING */ 1836 } 1837 1838 /* 1839 * load_font(): 1840 * Set the font data in the requested font page. 1841 * NOTE: it appears that some recent video adapters do not support 1842 * the font page other than 0... XXX 1843 * 1844 * EGA/VGA 1845 */ 1846 static int 1847 vga_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1848 int ch, int count) 1849 { 1850 #ifndef VGA_NO_FONT_LOADING 1851 u_char buf[PARAM_BUFSIZE]; 1852 u_int32_t segment; 1853 int c; 1854 #ifdef VGA_ALT_SEQACCESS 1855 u_char val = 0; 1856 #endif 1857 1858 prologue(adp, V_ADP_FONT, ENODEV); 1859 1860 if (fontsize < 14) { 1861 /* FONT_8 */ 1862 fontsize = 8; 1863 } else if (fontsize >= 32) { 1864 fontsize = 32; 1865 } else if (fontsize >= 16) { 1866 /* FONT_16 */ 1867 fontsize = 16; 1868 } else { 1869 /* FONT_14 */ 1870 fontsize = 14; 1871 } 1872 1873 if (page < 0 || page >= 8) 1874 return EINVAL; 1875 segment = FONT_BUF + 0x4000*page; 1876 if (page > 3) 1877 segment -= 0xe000; 1878 1879 #ifdef VGA_ALT_SEQACCESS 1880 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1881 crit_enter(); 1882 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1883 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1884 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1885 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1886 crit_exit(); 1887 } 1888 #endif 1889 1890 set_font_mode(adp, buf); 1891 if (fontsize == 32) { 1892 bcopy_toio(data, segment + ch*32, fontsize*count); 1893 } else { 1894 for (c = ch; count > 0; ++c, --count) { 1895 bcopy_toio(data, segment + c*32, fontsize); 1896 data += fontsize; 1897 } 1898 } 1899 set_normal_mode(adp, buf); 1900 1901 #ifdef VGA_ALT_SEQACCESS 1902 if (adp->va_type == KD_VGA) { 1903 crit_enter(); 1904 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1905 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1906 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1907 crit_exit(); 1908 } 1909 #endif 1910 1911 return 0; 1912 #else /* VGA_NO_FONT_LOADING */ 1913 return ENODEV; 1914 #endif /* VGA_NO_FONT_LOADING */ 1915 } 1916 1917 /* 1918 * show_font(): 1919 * Activate the requested font page. 1920 * NOTE: it appears that some recent video adapters do not support 1921 * the font page other than 0... XXX 1922 * 1923 * EGA/VGA 1924 */ 1925 static int 1926 vga_show_font(video_adapter_t *adp, int page) 1927 { 1928 #ifndef VGA_NO_FONT_LOADING 1929 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f }; 1930 1931 prologue(adp, V_ADP_FONT, ENODEV); 1932 if (page < 0 || page >= 8) 1933 return EINVAL; 1934 1935 crit_enter(); 1936 outb(TSIDX, 0x03); outb(TSREG, cg[page]); 1937 crit_exit(); 1938 1939 return 0; 1940 #else /* VGA_NO_FONT_LOADING */ 1941 return ENODEV; 1942 #endif /* VGA_NO_FONT_LOADING */ 1943 } 1944 1945 /* 1946 * save_palette(): 1947 * Read DAC values. The values have expressed in 8 bits. 1948 * 1949 * VGA 1950 */ 1951 static int 1952 vga_save_palette(video_adapter_t *adp, u_char *palette) 1953 { 1954 int i; 1955 1956 prologue(adp, V_ADP_PALETTE, ENODEV); 1957 1958 /* 1959 * We store 8 bit values in the palette buffer, while the standard 1960 * VGA has 6 bit DAC . 1961 */ 1962 outb(PALRADR, 0x00); 1963 for (i = 0; i < 256*3; ++i) 1964 palette[i] = inb(PALDATA) << 2; 1965 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1966 return 0; 1967 } 1968 1969 static int 1970 vga_save_palette2(video_adapter_t *adp, int base, int count, 1971 u_char *r, u_char *g, u_char *b) 1972 { 1973 int i; 1974 1975 prologue(adp, V_ADP_PALETTE, ENODEV); 1976 1977 outb(PALRADR, base); 1978 for (i = 0; i < count; ++i) { 1979 r[i] = inb(PALDATA) << 2; 1980 g[i] = inb(PALDATA) << 2; 1981 b[i] = inb(PALDATA) << 2; 1982 } 1983 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1984 return 0; 1985 } 1986 1987 /* 1988 * load_palette(): 1989 * Set DAC values. 1990 * 1991 * VGA 1992 */ 1993 static int 1994 vga_load_palette(video_adapter_t *adp, const u_char *palette) 1995 { 1996 int i; 1997 1998 prologue(adp, V_ADP_PALETTE, ENODEV); 1999 2000 outb(PIXMASK, 0xff); /* no pixelmask */ 2001 outb(PALWADR, 0x00); 2002 for (i = 0; i < 256*3; ++i) 2003 outb(PALDATA, palette[i] >> 2); 2004 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2005 outb(ATC, 0x20); /* enable palette */ 2006 return 0; 2007 } 2008 2009 static int 2010 vga_load_palette2(video_adapter_t *adp, int base, int count, 2011 u_char *r, u_char *g, u_char *b) 2012 { 2013 int i; 2014 2015 prologue(adp, V_ADP_PALETTE, ENODEV); 2016 2017 outb(PIXMASK, 0xff); /* no pixelmask */ 2018 outb(PALWADR, base); 2019 for (i = 0; i < count; ++i) { 2020 outb(PALDATA, r[i] >> 2); 2021 outb(PALDATA, g[i] >> 2); 2022 outb(PALDATA, b[i] >> 2); 2023 } 2024 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2025 outb(ATC, 0x20); /* enable palette */ 2026 return 0; 2027 } 2028 2029 /* 2030 * set_border(): 2031 * Change the border color. 2032 * 2033 * CGA/EGA/VGA 2034 */ 2035 static int 2036 vga_set_border(video_adapter_t *adp, int color) 2037 { 2038 prologue(adp, V_ADP_BORDER, ENODEV); 2039 2040 switch (adp->va_type) { 2041 case KD_EGA: 2042 case KD_VGA: 2043 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 2044 outb(ATC, 0x31); outb(ATC, color & 0xff); 2045 break; 2046 case KD_CGA: 2047 outb(adp->va_crtc_addr + 5, color & 0x0f); /* color select register */ 2048 break; 2049 case KD_MONO: 2050 case KD_HERCULES: 2051 default: 2052 break; 2053 } 2054 return 0; 2055 } 2056 2057 /* 2058 * save_state(): 2059 * Read video register values. 2060 * NOTE: this function only reads the standard EGA/VGA registers. 2061 * any extra/extended registers of SVGA adapters are not saved. 2062 * 2063 * VGA 2064 */ 2065 static int 2066 vga_save_state(video_adapter_t *adp, void *p, size_t size) 2067 { 2068 video_info_t info; 2069 u_char *buf; 2070 int crtc_addr; 2071 int i, j; 2072 2073 if (size == 0) { 2074 /* return the required buffer size */ 2075 prologue(adp, V_ADP_STATESAVE, 0); 2076 return sizeof(adp_state_t); 2077 } else { 2078 prologue(adp, V_ADP_STATESAVE, ENODEV); 2079 if (size < sizeof(adp_state_t)) 2080 return EINVAL; 2081 } 2082 2083 ((adp_state_t *)p)->sig = V_STATE_SIG; 2084 buf = ((adp_state_t *)p)->regs; 2085 bzero(buf, V_MODE_PARAM_SIZE); 2086 crtc_addr = adp->va_crtc_addr; 2087 2088 crit_enter(); 2089 2090 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2091 for (i = 0, j = 5; i < 4; i++) { 2092 outb(TSIDX, i + 1); 2093 buf[j++] = inb(TSREG); 2094 } 2095 buf[9] = inb(MISC + 10); /* dot-clock */ 2096 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2097 2098 for (i = 0, j = 10; i < 25; i++) { /* crtc */ 2099 outb(crtc_addr, i); 2100 buf[j++] = inb(crtc_addr + 1); 2101 } 2102 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */ 2103 inb(crtc_addr + 6); /* reset flip-flop */ 2104 outb(ATC, i); 2105 buf[j++] = inb(ATC + 1); 2106 } 2107 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */ 2108 outb(GDCIDX, i); 2109 buf[j++] = inb(GDCREG); 2110 } 2111 inb(crtc_addr + 6); /* reset flip-flop */ 2112 outb(ATC, 0x20); /* enable palette */ 2113 2114 crit_exit(); 2115 2116 #if 1 2117 if (vga_get_info(adp, adp->va_mode, &info) == 0) { 2118 if (info.vi_flags & V_INFO_GRAPHICS) { 2119 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */ 2120 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */ 2121 } else { 2122 buf[0] = info.vi_width; /* COLS */ 2123 buf[1] = info.vi_height - 1; /* ROWS */ 2124 } 2125 buf[2] = info.vi_cheight; /* POINTS */ 2126 } else { 2127 /* XXX: shouldn't be happening... */ 2128 printf("vga%d: %s: failed to obtain mode info. (vga_save_state())\n", 2129 adp->va_unit, adp->va_name); 2130 } 2131 #else 2132 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */ 2133 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */ 2134 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */ 2135 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c)); 2136 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d)); 2137 #endif 2138 2139 return 0; 2140 } 2141 2142 /* 2143 * load_state(): 2144 * Set video registers at once. 2145 * NOTE: this function only updates the standard EGA/VGA registers. 2146 * any extra/extended registers of SVGA adapters are not changed. 2147 * 2148 * EGA/VGA 2149 */ 2150 static int 2151 vga_load_state(video_adapter_t *adp, void *p) 2152 { 2153 u_char *buf; 2154 int crtc_addr; 2155 int i; 2156 2157 prologue(adp, V_ADP_STATELOAD, ENODEV); 2158 if (((adp_state_t *)p)->sig != V_STATE_SIG) 2159 return EINVAL; 2160 2161 buf = ((adp_state_t *)p)->regs; 2162 crtc_addr = adp->va_crtc_addr; 2163 2164 #if VGA_DEBUG > 1 2165 dump_buffer(buf, V_MODE_PARAM_SIZE); 2166 #endif 2167 2168 crit_enter(); 2169 2170 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2171 for (i = 0; i < 4; ++i) { /* program sequencer */ 2172 outb(TSIDX, i + 1); 2173 outb(TSREG, buf[i + 5]); 2174 } 2175 outb(MISC, buf[9]); /* set dot-clock */ 2176 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2177 outb(crtc_addr, 0x11); 2178 outb(crtc_addr + 1, inb(crtc_addr + 1) & 0x7F); 2179 for (i = 0; i < 25; ++i) { /* program crtc */ 2180 outb(crtc_addr, i); 2181 outb(crtc_addr + 1, buf[i + 10]); 2182 } 2183 inb(crtc_addr+6); /* reset flip-flop */ 2184 for (i = 0; i < 20; ++i) { /* program attribute ctrl */ 2185 outb(ATC, i); 2186 outb(ATC, buf[i + 35]); 2187 } 2188 for (i = 0; i < 9; ++i) { /* program graph data ctrl */ 2189 outb(GDCIDX, i); 2190 outb(GDCREG, buf[i + 55]); 2191 } 2192 inb(crtc_addr + 6); /* reset flip-flop */ 2193 outb(ATC, 0x20); /* enable palette */ 2194 2195 #if notyet /* a temporary workaround for kernel panic, XXX */ 2196 #ifndef VGA_NO_BIOS 2197 if (adp->va_unit == V_ADP_PRIMARY) { 2198 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */ 2199 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */ 2200 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */ 2201 #if 0 2202 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]); 2203 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]); 2204 #endif 2205 } 2206 #endif /* VGA_NO_BIOS */ 2207 #endif /* notyet */ 2208 2209 crit_exit(); 2210 return 0; 2211 } 2212 2213 /* 2214 * set_origin(): 2215 * Change the origin (window mapping) of the banked frame buffer. 2216 */ 2217 static int 2218 vga_set_origin(video_adapter_t *adp, off_t offset) 2219 { 2220 /* 2221 * The standard video modes do not require window mapping; 2222 * always return error. 2223 */ 2224 return ENODEV; 2225 } 2226 2227 /* 2228 * read_hw_cursor(): 2229 * Read the position of the hardware text cursor. 2230 * 2231 * all adapters 2232 */ 2233 static int 2234 vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 2235 { 2236 u_int16_t off; 2237 2238 if (!vga_init_done) 2239 return ENXIO; 2240 2241 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2242 return ENODEV; 2243 2244 crit_enter(); 2245 outb(adp->va_crtc_addr, 14); 2246 off = inb(adp->va_crtc_addr + 1); 2247 outb(adp->va_crtc_addr, 15); 2248 off = (off << 8) | inb(adp->va_crtc_addr + 1); 2249 crit_exit(); 2250 2251 *row = off / adp->va_info.vi_width; 2252 *col = off % adp->va_info.vi_width; 2253 2254 return 0; 2255 } 2256 2257 /* 2258 * set_hw_cursor(): 2259 * Move the hardware text cursor. If col and row are both -1, 2260 * the cursor won't be shown. 2261 * 2262 * all adapters 2263 */ 2264 static int 2265 vga_set_hw_cursor(video_adapter_t *adp, int col, int row) 2266 { 2267 u_int16_t off; 2268 2269 if (!vga_init_done) 2270 return ENXIO; 2271 2272 if ((col == -1) && (row == -1)) { 2273 off = -1; 2274 } else { 2275 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2276 return ENODEV; 2277 off = row*adp->va_info.vi_width + col; 2278 } 2279 2280 crit_enter(); 2281 outb(adp->va_crtc_addr, 14); 2282 outb(adp->va_crtc_addr + 1, off >> 8); 2283 outb(adp->va_crtc_addr, 15); 2284 outb(adp->va_crtc_addr + 1, off & 0x00ff); 2285 crit_exit(); 2286 2287 return 0; 2288 } 2289 2290 /* 2291 * set_hw_cursor_shape(): 2292 * Change the shape of the hardware text cursor. If the height is 2293 * zero or negative, the cursor won't be shown. 2294 * 2295 * all adapters 2296 */ 2297 static int 2298 vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 2299 int celsize, int blink) 2300 { 2301 if (!vga_init_done) 2302 return ENXIO; 2303 2304 crit_enter(); 2305 switch (adp->va_type) { 2306 case KD_VGA: 2307 case KD_CGA: 2308 case KD_MONO: 2309 case KD_HERCULES: 2310 default: 2311 if (height <= 0) { 2312 /* make the cursor invisible */ 2313 outb(adp->va_crtc_addr, 10); 2314 outb(adp->va_crtc_addr + 1, 32); 2315 outb(adp->va_crtc_addr, 11); 2316 outb(adp->va_crtc_addr + 1, 0); 2317 } else { 2318 outb(adp->va_crtc_addr, 10); 2319 outb(adp->va_crtc_addr + 1, celsize - base - height); 2320 outb(adp->va_crtc_addr, 11); 2321 outb(adp->va_crtc_addr + 1, celsize - base - 1); 2322 } 2323 break; 2324 case KD_EGA: 2325 if (height <= 0) { 2326 /* make the cursor invisible */ 2327 outb(adp->va_crtc_addr, 10); 2328 outb(adp->va_crtc_addr + 1, celsize); 2329 outb(adp->va_crtc_addr, 11); 2330 outb(adp->va_crtc_addr + 1, 0); 2331 } else { 2332 outb(adp->va_crtc_addr, 10); 2333 outb(adp->va_crtc_addr + 1, celsize - base - height); 2334 outb(adp->va_crtc_addr, 11); 2335 outb(adp->va_crtc_addr + 1, celsize - base); 2336 } 2337 break; 2338 } 2339 crit_exit(); 2340 2341 return 0; 2342 } 2343 2344 /* 2345 * blank_display() 2346 * Put the display in power save/power off mode. 2347 * 2348 * all adapters 2349 */ 2350 static int 2351 vga_blank_display(video_adapter_t *adp, int mode) 2352 { 2353 u_char val; 2354 2355 crit_enter(); 2356 switch (adp->va_type) { 2357 case KD_VGA: 2358 switch (mode) { 2359 case V_DISPLAY_SUSPEND: 2360 case V_DISPLAY_STAND_BY: 2361 outb(TSIDX, 0x01); 2362 val = inb(TSREG); 2363 outb(TSIDX, 0x01); 2364 outb(TSREG, val | 0x20); 2365 outb(adp->va_crtc_addr, 0x17); 2366 val = inb(adp->va_crtc_addr + 1); 2367 outb(adp->va_crtc_addr + 1, val & ~0x80); 2368 break; 2369 case V_DISPLAY_BLANK: 2370 outb(TSIDX, 0x01); 2371 val = inb(TSREG); 2372 outb(TSIDX, 0x01); 2373 outb(TSREG, val | 0x20); 2374 break; 2375 case V_DISPLAY_ON: 2376 outb(TSIDX, 0x01); 2377 val = inb(TSREG); 2378 outb(TSIDX, 0x01); 2379 outb(TSREG, val & 0xDF); 2380 outb(adp->va_crtc_addr, 0x17); 2381 val = inb(adp->va_crtc_addr + 1); 2382 outb(adp->va_crtc_addr + 1, val | 0x80); 2383 break; 2384 } 2385 break; 2386 2387 case KD_EGA: 2388 /* no support yet */ 2389 crit_exit(); 2390 return ENODEV; 2391 2392 case KD_CGA: 2393 switch (mode) { 2394 case V_DISPLAY_SUSPEND: 2395 case V_DISPLAY_STAND_BY: 2396 case V_DISPLAY_BLANK: 2397 outb(adp->va_crtc_addr + 4, 0x25); 2398 break; 2399 case V_DISPLAY_ON: 2400 outb(adp->va_crtc_addr + 4, 0x2d); 2401 break; 2402 } 2403 break; 2404 2405 case KD_MONO: 2406 case KD_HERCULES: 2407 switch (mode) { 2408 case V_DISPLAY_SUSPEND: 2409 case V_DISPLAY_STAND_BY: 2410 case V_DISPLAY_BLANK: 2411 outb(adp->va_crtc_addr + 4, 0x21); 2412 break; 2413 case V_DISPLAY_ON: 2414 outb(adp->va_crtc_addr + 4, 0x29); 2415 break; 2416 } 2417 break; 2418 default: 2419 break; 2420 } 2421 crit_exit(); 2422 2423 return 0; 2424 } 2425 2426 /* 2427 * mmap(): 2428 * Mmap frame buffer. 2429 * 2430 * all adapters 2431 */ 2432 static int 2433 vga_mmap_buf(video_adapter_t *adp, vm_offset_t offset, int prot) 2434 { 2435 if (adp->va_info.vi_flags & V_INFO_LINEAR) 2436 return -1; 2437 2438 #if VGA_DEBUG > 0 2439 printf("vga_mmap_buf(): window:0x%x, offset:0x%x\n", 2440 adp->va_info.vi_window, offset); 2441 #endif 2442 2443 /* XXX: is this correct? */ 2444 if (offset > adp->va_window_size - PAGE_SIZE) 2445 return -1; 2446 2447 #ifdef __i386__ 2448 return i386_btop(adp->va_info.vi_window + offset); 2449 #endif 2450 } 2451 2452 #ifndef VGA_NO_MODE_CHANGE 2453 2454 static void 2455 planar_fill(video_adapter_t *adp, int val) 2456 { 2457 int length; 2458 int at; /* position in the frame buffer */ 2459 int l; 2460 2461 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2462 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2463 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2464 outw(GDCIDX, 0xff08); /* bit mask */ 2465 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2466 at = 0; 2467 length = adp->va_line_width*adp->va_info.vi_height; 2468 while (length > 0) { 2469 l = imin(length, adp->va_window_size); 2470 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2471 bzero_io(adp->va_window, l); 2472 length -= l; 2473 at += l; 2474 } 2475 outw(GDCIDX, 0x0000); /* set/reset */ 2476 outw(GDCIDX, 0x0001); /* set/reset enable */ 2477 } 2478 2479 static void 2480 packed_fill(video_adapter_t *adp, int val) 2481 { 2482 int length; 2483 int at; /* position in the frame buffer */ 2484 int l; 2485 2486 at = 0; 2487 length = adp->va_line_width*adp->va_info.vi_height; 2488 while (length > 0) { 2489 l = imin(length, adp->va_window_size); 2490 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2491 fill_io(val, adp->va_window, l); 2492 length -= l; 2493 at += l; 2494 } 2495 } 2496 2497 static void 2498 direct_fill(video_adapter_t *adp, int val) 2499 { 2500 int length; 2501 int at; /* position in the frame buffer */ 2502 int l; 2503 2504 at = 0; 2505 length = adp->va_line_width*adp->va_info.vi_height; 2506 while (length > 0) { 2507 l = imin(length, adp->va_window_size); 2508 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2509 switch (adp->va_info.vi_pixel_size) { 2510 case sizeof(u_int16_t): 2511 fillw_io(val, adp->va_window, l/sizeof(u_int16_t)); 2512 break; 2513 case 3: 2514 /* FIXME */ 2515 break; 2516 case sizeof(u_int32_t): 2517 filll_io(val, adp->va_window, l/sizeof(u_int32_t)); 2518 break; 2519 } 2520 length -= l; 2521 at += l; 2522 } 2523 } 2524 2525 static int 2526 vga_clear(video_adapter_t *adp) 2527 { 2528 switch (adp->va_info.vi_mem_model) { 2529 case V_INFO_MM_TEXT: 2530 /* do nothing? XXX */ 2531 break; 2532 case V_INFO_MM_PLANAR: 2533 planar_fill(adp, 0); 2534 break; 2535 case V_INFO_MM_PACKED: 2536 packed_fill(adp, 0); 2537 break; 2538 case V_INFO_MM_DIRECT: 2539 direct_fill(adp, 0); 2540 break; 2541 } 2542 return 0; 2543 } 2544 2545 #ifdef notyet 2546 static void 2547 planar_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2548 { 2549 int banksize; 2550 int bank; 2551 int pos; 2552 int offset; /* offset within window */ 2553 int bx; 2554 int l; 2555 2556 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2557 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2558 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2559 outw(GDCIDX, 0xff08); /* bit mask */ 2560 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2561 2562 banksize = adp->va_window_size; 2563 bank = -1; 2564 while (cy > 0) { 2565 pos = adp->va_line_width*y + x/8; 2566 if (bank != pos/banksize) { 2567 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2568 bank = pos/banksize; 2569 } 2570 offset = pos%banksize; 2571 bx = (x + cx)/8 - x/8; 2572 if (x % 8) { 2573 outw(GDCIDX, ((0xff00 >> (x % 8)) & 0xff00) | 0x08); 2574 writeb(adp->va_window + offset, 0); 2575 ++offset; 2576 --bx; 2577 if (offset >= banksize) { 2578 offset = 0; 2579 ++bank; /* next bank */ 2580 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2581 } 2582 outw(GDCIDX, 0xff08); /* bit mask */ 2583 } 2584 while (bx > 0) { 2585 l = imin(bx, banksize); 2586 bzero_io(adp->va_window + offset, l); 2587 offset += l; 2588 bx -= l; 2589 if (offset >= banksize) { 2590 offset = 0; 2591 ++bank; /* next bank */ 2592 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2593 } 2594 } 2595 if ((x + cx) % 8) { 2596 outw(GDCIDX, (~(0xff00 >> ((x + cx) % 8)) & 0xff00) | 0x08); 2597 writeb(adp->va_window + offset, 0); 2598 ++offset; 2599 if (offset >= banksize) { 2600 offset = 0; 2601 ++bank; /* next bank */ 2602 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2603 } 2604 outw(GDCIDX, 0xff08); /* bit mask */ 2605 } 2606 ++y; 2607 --cy; 2608 } 2609 2610 outw(GDCIDX, 0xff08); /* bit mask */ 2611 outw(GDCIDX, 0x0000); /* set/reset */ 2612 outw(GDCIDX, 0x0001); /* set/reset enable */ 2613 } 2614 2615 static void 2616 packed_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2617 { 2618 int banksize; 2619 int bank; 2620 int pos; 2621 int offset; /* offset within window */ 2622 int end; 2623 2624 banksize = adp->va_window_size; 2625 bank = -1; 2626 cx *= adp->va_info.vi_pixel_size; 2627 while (cy > 0) { 2628 pos = adp->va_line_width*y + x*adp->va_info.vi_pixel_size; 2629 if (bank != pos/banksize) { 2630 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2631 bank = pos/banksize; 2632 } 2633 offset = pos%banksize; 2634 end = imin(offset + cx, banksize); 2635 fill_io(val, adp->va_window + offset, 2636 (end - offset)/adp->va_info.vi_pixel_size); 2637 /* the line may cross the window boundary */ 2638 if (offset + cx > banksize) { 2639 ++bank; /* next bank */ 2640 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2641 end = offset + cx - banksize; 2642 fill_io(val, adp->va_window, end/adp->va_info.vi_pixel_size); 2643 } 2644 ++y; 2645 --cy; 2646 } 2647 } 2648 2649 static void 2650 direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2651 { 2652 int banksize; 2653 int bank; 2654 int pos; 2655 int offset; /* offset within window */ 2656 int end; 2657 2658 /* 2659 * XXX: the function assumes that banksize is a muliple of 2660 * sizeof(u_int16_t). 2661 */ 2662 banksize = adp->va_window_size; 2663 bank = -1; 2664 cx *= sizeof(u_int16_t); 2665 while (cy > 0) { 2666 pos = adp->va_line_width*y + x*sizeof(u_int16_t); 2667 if (bank != pos/banksize) { 2668 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2669 bank = pos/banksize; 2670 } 2671 offset = pos%banksize; 2672 end = imin(offset + cx, banksize); 2673 fillw_io(val, adp->va_window + offset, 2674 (end - offset)/sizeof(u_int16_t)); 2675 /* the line may cross the window boundary */ 2676 if (offset + cx > banksize) { 2677 ++bank; /* next bank */ 2678 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2679 end = offset + cx - banksize; 2680 fillw_io(val, adp->va_window, end/sizeof(u_int16_t)); 2681 } 2682 ++y; 2683 --cy; 2684 } 2685 } 2686 2687 static void 2688 direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2689 { 2690 int banksize; 2691 int bank; 2692 int pos; 2693 int offset; /* offset within window */ 2694 int end; 2695 int i; 2696 int j; 2697 u_int8_t b[3]; 2698 2699 b[0] = val & 0x0000ff; 2700 b[1] = (val >> 8) & 0x0000ff; 2701 b[2] = (val >> 16) & 0x0000ff; 2702 banksize = adp->va_window_size; 2703 bank = -1; 2704 cx *= 3; 2705 while (cy > 0) { 2706 pos = adp->va_line_width*y + x*3; 2707 if (bank != pos/banksize) { 2708 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2709 bank = pos/banksize; 2710 } 2711 offset = pos%banksize; 2712 end = imin(offset + cx, banksize); 2713 for (i = 0, j = offset; j < end; i = (++i)%3, ++j) { 2714 writeb(adp->va_window + j, b[i]); 2715 } 2716 /* the line may cross the window boundary */ 2717 if (offset + cx >= banksize) { 2718 ++bank; /* next bank */ 2719 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2720 j = 0; 2721 end = offset + cx - banksize; 2722 for (; j < end; i = (++i)%3, ++j) { 2723 writeb(adp->va_window + j, b[i]); 2724 } 2725 } 2726 ++y; 2727 --cy; 2728 } 2729 } 2730 2731 static void 2732 direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2733 { 2734 int banksize; 2735 int bank; 2736 int pos; 2737 int offset; /* offset within window */ 2738 int end; 2739 2740 /* 2741 * XXX: the function assumes that banksize is a muliple of 2742 * sizeof(u_int32_t). 2743 */ 2744 banksize = adp->va_window_size; 2745 bank = -1; 2746 cx *= sizeof(u_int32_t); 2747 while (cy > 0) { 2748 pos = adp->va_line_width*y + x*sizeof(u_int32_t); 2749 if (bank != pos/banksize) { 2750 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2751 bank = pos/banksize; 2752 } 2753 offset = pos%banksize; 2754 end = imin(offset + cx, banksize); 2755 filll_io(val, adp->va_window + offset, 2756 (end - offset)/sizeof(u_int32_t)); 2757 /* the line may cross the window boundary */ 2758 if (offset + cx > banksize) { 2759 ++bank; /* next bank */ 2760 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2761 end = offset + cx - banksize; 2762 filll_io(val, adp->va_window, end/sizeof(u_int32_t)); 2763 } 2764 ++y; 2765 --cy; 2766 } 2767 } 2768 2769 static int 2770 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2771 { 2772 switch (adp->va_info.vi_mem_model) { 2773 case V_INFO_MM_TEXT: 2774 /* do nothing? XXX */ 2775 break; 2776 case V_INFO_MM_PLANAR: 2777 planar_fill_rect(adp, val, x, y, cx, cy); 2778 break; 2779 case V_INFO_MM_PACKED: 2780 packed_fill_rect(adp, val, x, y, cx, cy); 2781 break; 2782 case V_INFO_MM_DIRECT: 2783 switch (adp->va_info.vi_pixel_size) { 2784 case sizeof(u_int16_t): 2785 direct_fill_rect16(adp, val, x, y, cx, cy); 2786 break; 2787 case 3: 2788 direct_fill_rect24(adp, val, x, y, cx, cy); 2789 break; 2790 case sizeof(u_int32_t): 2791 direct_fill_rect32(adp, val, x, y, cx, cy); 2792 break; 2793 } 2794 break; 2795 } 2796 return 0; 2797 } 2798 #else /* !notyet */ 2799 static int 2800 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2801 { 2802 return ENODEV; 2803 } 2804 #endif /* notyet */ 2805 2806 static int 2807 vga_bitblt(video_adapter_t *adp,...) 2808 { 2809 /* FIXME */ 2810 return ENODEV; 2811 } 2812 2813 #endif /* !VGA_NO_MODE_CHANGE */ 2814 2815 static int 2816 get_palette(video_adapter_t *adp, int base, int count, 2817 u_char *red, u_char *green, u_char *blue, u_char *trans) 2818 { 2819 u_char *r; 2820 u_char *g; 2821 u_char *b; 2822 2823 if (count < 0 || base < 0 || count > 256 || base > 256 || 2824 base + count > 256) 2825 return EINVAL; 2826 2827 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2828 g = r + count; 2829 b = g + count; 2830 if (vga_save_palette2(adp, base, count, r, g, b)) { 2831 free(r, M_DEVBUF); 2832 return ENODEV; 2833 } 2834 copyout(r, red, count); 2835 copyout(g, green, count); 2836 copyout(b, blue, count); 2837 if (trans != NULL) { 2838 bzero(r, count); 2839 copyout(r, trans, count); 2840 } 2841 free(r, M_DEVBUF); 2842 2843 return 0; 2844 } 2845 2846 static int 2847 set_palette(video_adapter_t *adp, int base, int count, 2848 u_char *red, u_char *green, u_char *blue, u_char *trans) 2849 { 2850 u_char *r; 2851 u_char *g; 2852 u_char *b; 2853 int err; 2854 2855 if (count < 0 || base < 0 || count > 256 || base > 256 || 2856 base + count > 256) 2857 return EINVAL; 2858 2859 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2860 g = r + count; 2861 b = g + count; 2862 err = copyin(red, r, count); 2863 if (!err) 2864 err = copyin(green, g, count); 2865 if (!err) 2866 err = copyin(blue, b, count); 2867 if (!err) 2868 err = vga_load_palette2(adp, base, count, r, g, b); 2869 free(r, M_DEVBUF); 2870 2871 return (err ? ENODEV : 0); 2872 } 2873 2874 static int 2875 vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 2876 { 2877 switch (cmd) { 2878 case FBIO_GETWINORG: /* get frame buffer window origin */ 2879 *(u_int *)arg = 0; 2880 return 0; 2881 2882 case FBIO_SETWINORG: /* set frame buffer window origin */ 2883 return ENODEV; 2884 2885 case FBIO_SETDISPSTART: /* set display start address */ 2886 return (set_display_start(adp, 2887 ((video_display_start_t *)arg)->x, 2888 ((video_display_start_t *)arg)->y) 2889 ? ENODEV : 0); 2890 2891 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */ 2892 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0); 2893 2894 case FBIO_GETPALETTE: /* get color palette */ 2895 return get_palette(adp, ((video_color_palette_t *)arg)->index, 2896 ((video_color_palette_t *)arg)->count, 2897 ((video_color_palette_t *)arg)->red, 2898 ((video_color_palette_t *)arg)->green, 2899 ((video_color_palette_t *)arg)->blue, 2900 ((video_color_palette_t *)arg)->transparent); 2901 2902 case FBIO_SETPALETTE: /* set color palette */ 2903 return set_palette(adp, ((video_color_palette_t *)arg)->index, 2904 ((video_color_palette_t *)arg)->count, 2905 ((video_color_palette_t *)arg)->red, 2906 ((video_color_palette_t *)arg)->green, 2907 ((video_color_palette_t *)arg)->blue, 2908 ((video_color_palette_t *)arg)->transparent); 2909 2910 case FBIOGTYPE: /* get frame buffer type info. */ 2911 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type); 2912 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height; 2913 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width; 2914 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth; 2915 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8)) 2916 ((struct fbtype *)arg)->fb_cmsize = 0; 2917 else 2918 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth; 2919 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size; 2920 return 0; 2921 2922 case FBIOGETCMAP: /* get color palette */ 2923 return get_palette(adp, ((struct fbcmap *)arg)->index, 2924 ((struct fbcmap *)arg)->count, 2925 ((struct fbcmap *)arg)->red, 2926 ((struct fbcmap *)arg)->green, 2927 ((struct fbcmap *)arg)->blue, NULL); 2928 2929 case FBIOPUTCMAP: /* set color palette */ 2930 return set_palette(adp, ((struct fbcmap *)arg)->index, 2931 ((struct fbcmap *)arg)->count, 2932 ((struct fbcmap *)arg)->red, 2933 ((struct fbcmap *)arg)->green, 2934 ((struct fbcmap *)arg)->blue, NULL); 2935 2936 default: 2937 return fb_commonioctl(adp, cmd, arg); 2938 } 2939 } 2940 2941 static void 2942 dump_buffer(u_char *buf, size_t len) 2943 { 2944 int i; 2945 2946 for(i = 0; i < len;) { 2947 printf("%02x ", buf[i]); 2948 if ((++i % 16) == 0) 2949 printf("\n"); 2950 } 2951 } 2952 2953 /* 2954 * diag(): 2955 * Print some information about the video adapter and video modes, 2956 * with requested level of details. 2957 * 2958 * all adapters 2959 */ 2960 static int 2961 vga_diag(video_adapter_t *adp, int level) 2962 { 2963 u_char *mp; 2964 #if FB_DEBUG > 1 2965 video_info_t info; 2966 int i; 2967 #endif 2968 2969 if (!vga_init_done) 2970 return ENXIO; 2971 2972 #if FB_DEBUG > 1 2973 #ifndef VGA_NO_BIOS 2974 printf("vga: RTC equip. code:0x%02x, DCC code:0x%02x\n", 2975 rtcin(RTC_EQUIPMENT), readb(BIOS_PADDRTOVADDR(0x488))); 2976 printf("vga: CRTC:0x%x, video option:0x%02x, ", 2977 readw(BIOS_PADDRTOVADDR(0x463)), 2978 readb(BIOS_PADDRTOVADDR(0x487))); 2979 printf("rows:%d, cols:%d, font height:%d\n", 2980 readb(BIOS_PADDRTOVADDR(0x44a)), 2981 readb(BIOS_PADDRTOVADDR(0x484)) + 1, 2982 readb(BIOS_PADDRTOVADDR(0x485))); 2983 #endif /* VGA_NO_BIOS */ 2984 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 2985 printf("vga: param table EGA/VGA:%p", video_mode_ptr); 2986 printf(", CGA/MDA:%p\n", video_mode_ptr2); 2987 printf("vga: rows_offset:%d\n", rows_offset); 2988 #endif 2989 #endif /* FB_DEBUG > 1 */ 2990 2991 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level); 2992 2993 #if FB_DEBUG > 1 2994 if (adp->va_flags & V_ADP_MODECHANGE) { 2995 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 2996 if (bios_vmode[i].vi_mode == NA) 2997 continue; 2998 if (get_mode_param(bios_vmode[i].vi_mode) == NULL) 2999 continue; 3000 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level); 3001 } 3002 } else { 3003 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */ 3004 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level); 3005 } 3006 #endif /* FB_DEBUG > 1 */ 3007 3008 if ((adp->va_type != KD_EGA) && (adp->va_type != KD_VGA)) 3009 return 0; 3010 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 3011 if (video_mode_ptr == NULL) 3012 printf("vga%d: %s: WARNING: video mode switching is not " 3013 "fully supported on this adapter\n", 3014 adp->va_unit, adp->va_name); 3015 #endif 3016 if (level <= 0) 3017 return 0; 3018 3019 if (adp->va_type == KD_VGA) { 3020 printf("VGA parameters upon power-up\n"); 3021 dump_buffer(adpstate.regs, sizeof(adpstate.regs)); 3022 printf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode); 3023 dump_buffer(adpstate2.regs, sizeof(adpstate2.regs)); 3024 } 3025 3026 mp = get_mode_param(adp->va_initial_mode); 3027 if (mp == NULL) /* this shouldn't be happening */ 3028 return 0; 3029 printf("EGA/VGA parameters to be used for mode %d\n", adp->va_initial_mode); 3030 dump_buffer(mp, V_MODE_PARAM_SIZE); 3031 3032 return 0; 3033 } 3034