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 1.16 2006/07/28 02:17:39 dillon Exp $ 31 */ 32 33 #include "opt_vga.h" 34 #include "opt_fb.h" 35 #include "opt_syscons.h" /* should be removed in the future, XXX */ 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/conf.h> 41 #include <sys/fcntl.h> 42 #include <sys/malloc.h> 43 #include <sys/fbio.h> 44 #include <sys/thread2.h> 45 46 #include <vm/vm.h> 47 #include <vm/vm_param.h> 48 #include <vm/pmap.h> 49 50 #include <machine/md_var.h> 51 #include <machine/pc/bios.h> 52 53 #include "fbreg.h" 54 #include "vgareg.h" 55 56 #include <bus/isa/isareg.h> 57 58 #ifndef VGA_DEBUG 59 #define VGA_DEBUG 0 60 #endif 61 62 int 63 vga_probe_unit(int unit, video_adapter_t *buf, int flags) 64 { 65 video_adapter_t *adp; 66 video_switch_t *sw; 67 int error; 68 69 sw = vid_get_switch(VGA_DRIVER_NAME); 70 if (sw == NULL) 71 return 0; 72 error = (*sw->probe)(unit, &adp, NULL, flags); 73 if (error) 74 return error; 75 bcopy(adp, buf, sizeof(*buf)); 76 return 0; 77 } 78 79 int 80 vga_attach_unit(int unit, vga_softc_t *sc, int flags) 81 { 82 video_switch_t *sw; 83 int error; 84 85 sw = vid_get_switch(VGA_DRIVER_NAME); 86 if (sw == NULL) 87 return ENXIO; 88 89 error = (*sw->probe)(unit, &sc->adp, NULL, flags); 90 if (error) 91 return error; 92 return (*sw->init)(unit, sc->adp, flags); 93 } 94 95 /* cdev driver functions */ 96 97 #ifdef FB_INSTALL_CDEV 98 99 struct ucred; 100 101 int 102 vga_open(dev_t dev, vga_softc_t *sc, int flag, int mode, struct ucred *cred) 103 { 104 if (sc == NULL) 105 return ENXIO; 106 if (mode & (O_CREAT | O_APPEND | O_TRUNC)) 107 return ENODEV; 108 109 return genfbopen(&sc->gensc, sc->adp, flag, mode, cred); 110 } 111 112 int 113 vga_close(dev_t dev, vga_softc_t *sc, int flag, int mode) 114 { 115 return genfbclose(&sc->gensc, sc->adp, flag, mode); 116 } 117 118 int 119 vga_read(dev_t dev, vga_softc_t *sc, struct uio *uio, int flag) 120 { 121 return genfbread(&sc->gensc, sc->adp, uio, flag); 122 } 123 124 int 125 vga_write(dev_t dev, vga_softc_t *sc, struct uio *uio, int flag) 126 { 127 return genfbread(&sc->gensc, sc->adp, uio, flag); 128 } 129 130 int 131 vga_ioctl(dev_t dev, vga_softc_t *sc, u_long cmd, caddr_t arg, int flag, 132 struct ucred *cred) 133 { 134 return genfbioctl(&sc->gensc, sc->adp, cmd, arg, flag, cred); 135 } 136 137 int 138 vga_mmap(dev_t dev, vga_softc_t *sc, vm_offset_t offset, int prot) 139 { 140 return genfbmmap(&sc->gensc, sc->adp, offset, prot); 141 } 142 143 #endif /* FB_INSTALL_CDEV */ 144 145 /* LOW-LEVEL */ 146 147 #include <machine/clock.h> 148 #include <machine/pc/vesa.h> 149 150 #define probe_done(adp) ((adp)->va_flags & V_ADP_PROBED) 151 #define init_done(adp) ((adp)->va_flags & V_ADP_INITIALIZED) 152 #define config_done(adp) ((adp)->va_flags & V_ADP_REGISTERED) 153 154 /* for compatibility with old kernel options */ 155 #ifdef SC_ALT_SEQACCESS 156 #undef SC_ALT_SEQACCESS 157 #undef VGA_ALT_SEQACCESS 158 #define VGA_ALT_SEQACCESS 1 159 #endif 160 161 #ifdef SLOW_VGA 162 #undef SLOW_VGA 163 #undef VGA_SLOW_IOACCESS 164 #define VGA_SLOW_IOACCESS 1 165 #endif 166 167 /* this should really be in `rtc.h' */ 168 #define RTC_EQUIPMENT 0x14 169 170 /* various sizes */ 171 #define V_MODE_MAP_SIZE (M_VGA_CG320 + 1) 172 #define V_MODE_PARAM_SIZE 64 173 174 /* video adapter state buffer */ 175 struct adp_state { 176 int sig; 177 #define V_STATE_SIG 0x736f6962 178 u_char regs[V_MODE_PARAM_SIZE]; 179 }; 180 typedef struct adp_state adp_state_t; 181 182 /* video adapter information */ 183 #define DCC_MONO 0 184 #define DCC_CGA40 1 185 #define DCC_CGA80 2 186 #define DCC_EGAMONO 3 187 #define DCC_EGA40 4 188 #define DCC_EGA80 5 189 190 /* 191 * NOTE: `va_window' should have a virtual address, but is initialized 192 * with a physical address in the following table, as verify_adapter() 193 * will perform address conversion at run-time. 194 */ 195 static video_adapter_t adapter_init_value[] = { 196 /* DCC_MONO */ 197 { 0, KD_MONO, "mda", 0, 0, 0, IO_MDA, IO_MDASIZE, MONO_CRTC, 198 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 199 0, 0, 0, 0, 7, 0, }, 200 /* DCC_CGA40 */ 201 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 202 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 203 0, 0, 0, 0, 3, 0, }, 204 /* DCC_CGA80 */ 205 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 206 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 207 0, 0, 0, 0, 3, 0, }, 208 /* DCC_EGAMONO */ 209 { 0, KD_EGA, "ega", 0, 0, 0, IO_MDA, 48, MONO_CRTC, 210 EGA_BUF_BASE, EGA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 211 0, 0, 0, 0, 7, 0, }, 212 /* DCC_EGA40 */ 213 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 214 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 215 0, 0, 0, 0, 3, 0, }, 216 /* DCC_EGA80 */ 217 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 218 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 219 0, 0, 0, 0, 3, 0, }, 220 }; 221 222 static video_adapter_t biosadapter[2]; 223 static int biosadapters = 0; 224 225 /* video driver declarations */ 226 static int vga_configure(int flags); 227 int (*vga_sub_configure)(int flags); 228 #if 0 229 static int vga_nop(void); 230 #endif 231 static int vga_error(void); 232 static vi_probe_t vga_probe; 233 static vi_init_t vga_init; 234 static vi_get_info_t vga_get_info; 235 static vi_query_mode_t vga_query_mode; 236 static vi_set_mode_t vga_set_mode; 237 static vi_save_font_t vga_save_font; 238 static vi_load_font_t vga_load_font; 239 static vi_show_font_t vga_show_font; 240 static vi_save_palette_t vga_save_palette; 241 static vi_load_palette_t vga_load_palette; 242 static vi_set_border_t vga_set_border; 243 static vi_save_state_t vga_save_state; 244 static vi_load_state_t vga_load_state; 245 static vi_set_win_org_t vga_set_origin; 246 static vi_read_hw_cursor_t vga_read_hw_cursor; 247 static vi_set_hw_cursor_t vga_set_hw_cursor; 248 static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape; 249 static vi_blank_display_t vga_blank_display; 250 static vi_mmap_t vga_mmap_buf; 251 static vi_ioctl_t vga_dev_ioctl; 252 #ifndef VGA_NO_MODE_CHANGE 253 static vi_clear_t vga_clear; 254 static vi_fill_rect_t vga_fill_rect; 255 static vi_bitblt_t vga_bitblt; 256 #else /* VGA_NO_MODE_CHANGE */ 257 #define vga_clear (vi_clear_t *)vga_error 258 #define vga_fill_rect (vi_fill_rect_t *)vga_error 259 #define vga_bitblt (vi_bitblt_t *)vga_error 260 #endif 261 static vi_diag_t vga_diag; 262 263 static video_switch_t vgavidsw = { 264 vga_probe, 265 vga_init, 266 vga_get_info, 267 vga_query_mode, 268 vga_set_mode, 269 vga_save_font, 270 vga_load_font, 271 vga_show_font, 272 vga_save_palette, 273 vga_load_palette, 274 vga_set_border, 275 vga_save_state, 276 vga_load_state, 277 vga_set_origin, 278 vga_read_hw_cursor, 279 vga_set_hw_cursor, 280 vga_set_hw_cursor_shape, 281 vga_blank_display, 282 vga_mmap_buf, 283 vga_dev_ioctl, 284 vga_clear, 285 vga_fill_rect, 286 vga_bitblt, 287 vga_error, 288 vga_error, 289 vga_diag, 290 }; 291 292 VIDEO_DRIVER(mda, vgavidsw, NULL); 293 VIDEO_DRIVER(cga, vgavidsw, NULL); 294 VIDEO_DRIVER(ega, vgavidsw, NULL); 295 VIDEO_DRIVER(vga, vgavidsw, vga_configure); 296 297 /* VGA BIOS standard video modes */ 298 #define EOT (-1) 299 #define NA (-2) 300 301 static video_info_t bios_vmode[] = { 302 /* CGA */ 303 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1, 304 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 305 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1, 306 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 307 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1, 308 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 309 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1, 310 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 311 /* EGA */ 312 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1, 313 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 314 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1, 315 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 316 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1, 317 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 318 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1, 319 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 320 /* VGA */ 321 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1, 322 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 323 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1, 324 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 325 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1, 326 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 327 /* MDA */ 328 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1, 329 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 330 /* EGA */ 331 { M_ENH_B80x43, 0, 80, 43, 8, 8, 2, 1, 332 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 333 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1, 334 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 335 /* VGA */ 336 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1, 337 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 338 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1, 339 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 340 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1, 341 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 342 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1, 343 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 344 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1, 345 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 346 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1, 347 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 348 349 #ifndef VGA_NO_MODE_CHANGE 350 351 #ifdef VGA_WIDTH90 352 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1, 353 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 354 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1, 355 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 356 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1, 357 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 358 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1, 359 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 360 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1, 361 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 362 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1, 363 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 364 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1, 365 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 366 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1, 367 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 368 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1, 369 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 370 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1, 371 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 372 #endif /* VGA_WIDTH90 */ 373 374 /* CGA */ 375 { M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 376 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 377 { M_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 378 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 379 { M_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1, 380 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 381 /* EGA */ 382 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4, 383 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 384 V_INFO_MM_PLANAR }, 385 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4, 386 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 387 V_INFO_MM_PLANAR }, 388 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 389 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 , 390 V_INFO_MM_PLANAR }, 391 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 392 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 393 V_INFO_MM_PLANAR }, 394 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2, 395 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 396 V_INFO_MM_PLANAR }, 397 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 398 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 399 V_INFO_MM_PLANAR }, 400 /* VGA */ 401 { M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 402 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 403 V_INFO_MM_PLANAR }, 404 { M_CG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 405 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 406 V_INFO_MM_PLANAR }, 407 { M_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1, 408 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 409 V_INFO_MM_PACKED, 1 }, 410 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 4, 411 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 412 V_INFO_MM_VGAX, 1 }, 413 #endif /* VGA_NO_MODE_CHANGE */ 414 415 { EOT }, 416 }; 417 418 static int vga_init_done = FALSE; 419 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 420 static u_char *video_mode_ptr = NULL; /* EGA/VGA */ 421 static u_char *video_mode_ptr2 = NULL; /* CGA/MDA */ 422 #endif 423 static u_char *mode_map[V_MODE_MAP_SIZE]; 424 static adp_state_t adpstate; 425 static adp_state_t adpstate2; 426 static int rows_offset = 1; 427 428 /* local macros and functions */ 429 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 430 431 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 432 static void map_mode_table(u_char **, u_char *, int); 433 #endif 434 static void clear_mode_map(video_adapter_t *, u_char **, int, int); 435 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 436 static int map_mode_num(int); 437 #endif 438 static int map_gen_mode_num(int, int, int); 439 static int map_bios_mode_num(int, int, int); 440 static u_char *get_mode_param(int); 441 #ifndef VGA_NO_BIOS 442 static void fill_adapter_param(int, video_adapter_t *); 443 #endif 444 static int verify_adapter(video_adapter_t *); 445 static void update_adapter_info(video_adapter_t *, video_info_t *); 446 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 447 #define COMP_IDENTICAL 0 448 #define COMP_SIMILAR 1 449 #define COMP_DIFFERENT 2 450 static int comp_adpregs(u_char *, u_char *); 451 #endif 452 static int probe_adapters(void); 453 static int set_line_length(video_adapter_t *, int); 454 static int set_display_start(video_adapter_t *, int, int); 455 456 #ifndef VGA_NO_MODE_CHANGE 457 #ifdef VGA_WIDTH90 458 static void set_width90(adp_state_t *); 459 #endif 460 #endif /* !VGA_NO_MODE_CHANGE */ 461 462 #ifndef VGA_NO_FONT_LOADING 463 #define PARAM_BUFSIZE 6 464 static void set_font_mode(video_adapter_t *, u_char *); 465 static void set_normal_mode(video_adapter_t *, u_char *); 466 #endif 467 468 #ifndef VGA_NO_MODE_CHANGE 469 static void filll_io(int, vm_offset_t, size_t); 470 static void planar_fill(video_adapter_t *, int); 471 static void packed_fill(video_adapter_t *, int); 472 static void direct_fill(video_adapter_t *, int); 473 #ifdef notyet 474 static void planar_fill_rect(video_adapter_t *, int, int, int, int, int); 475 static void packed_fill_rect(video_adapter_t *, int, int, int, int, int); 476 static void direct_fill_rect16(video_adapter_t *, int, int, int, int, int); 477 static void direct_fill_rect24(video_adapter_t *, int, int, int, int, int); 478 static void direct_fill_rect32(video_adapter_t *, int, int, int, int, int); 479 #endif /* notyet */ 480 #endif /* !VGA_NO_MODE_CHANGE */ 481 482 static void dump_buffer(u_char *, size_t); 483 484 #define ISMAPPED(pa, width) \ 485 (((pa) <= (u_long)0x1000 - (width)) \ 486 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width))) 487 488 #define prologue(adp, flag, err) \ 489 if (!vga_init_done || !((adp)->va_flags & (flag))) \ 490 return (err) 491 492 /* a backdoor for the console driver */ 493 static int 494 vga_configure(int flags) 495 { 496 int i; 497 498 probe_adapters(); 499 for (i = 0; i < biosadapters; ++i) { 500 if (!probe_done(&biosadapter[i])) 501 continue; 502 biosadapter[i].va_flags |= V_ADP_INITIALIZED; 503 if (!config_done(&biosadapter[i])) { 504 if (vid_register(&biosadapter[i]) < 0) 505 continue; 506 biosadapter[i].va_flags |= V_ADP_REGISTERED; 507 } 508 } 509 if (vga_sub_configure != NULL) 510 (*vga_sub_configure)(flags); 511 512 return biosadapters; 513 } 514 515 /* local subroutines */ 516 517 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 518 /* construct the mode parameter map */ 519 static void 520 map_mode_table(u_char *map[], u_char *table, int max) 521 { 522 int i; 523 524 for(i = 0; i < max; ++i) 525 map[i] = table + i*V_MODE_PARAM_SIZE; 526 for(; i < V_MODE_MAP_SIZE; ++i) 527 map[i] = NULL; 528 } 529 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 530 531 static void 532 clear_mode_map(video_adapter_t *adp, u_char *map[], int max, int color) 533 { 534 video_info_t info; 535 int i; 536 537 /* 538 * NOTE: we don't touch `bios_vmode[]' because it is shared 539 * by all adapters. 540 */ 541 for(i = 0; i < max; ++i) { 542 if (vga_get_info(adp, i, &info)) 543 continue; 544 if ((info.vi_flags & V_INFO_COLOR) != color) 545 map[i] = NULL; 546 } 547 } 548 549 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 550 /* map the non-standard video mode to a known mode number */ 551 static int 552 map_mode_num(int mode) 553 { 554 static struct { 555 int from; 556 int to; 557 } mode_map[] = { 558 { M_ENH_B80x43, M_ENH_B80x25 }, 559 { M_ENH_C80x43, M_ENH_C80x25 }, 560 { M_VGA_M80x30, M_VGA_M80x25 }, 561 { M_VGA_C80x30, M_VGA_C80x25 }, 562 { M_VGA_M80x50, M_VGA_M80x25 }, 563 { M_VGA_C80x50, M_VGA_C80x25 }, 564 { M_VGA_M80x60, M_VGA_M80x25 }, 565 { M_VGA_C80x60, M_VGA_C80x25 }, 566 #ifdef VGA_WIDTH90 567 { M_VGA_M90x25, M_VGA_M80x25 }, 568 { M_VGA_C90x25, M_VGA_C80x25 }, 569 { M_VGA_M90x30, M_VGA_M80x25 }, 570 { M_VGA_C90x30, M_VGA_C80x25 }, 571 { M_VGA_M90x43, M_ENH_B80x25 }, 572 { M_VGA_C90x43, M_ENH_C80x25 }, 573 { M_VGA_M90x50, M_VGA_M80x25 }, 574 { M_VGA_C90x50, M_VGA_C80x25 }, 575 { M_VGA_M90x60, M_VGA_M80x25 }, 576 { M_VGA_C90x60, M_VGA_C80x25 }, 577 #endif 578 { M_VGA_MODEX, M_VGA_CG320 }, 579 }; 580 int i; 581 582 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 583 if (mode_map[i].from == mode) 584 return mode_map[i].to; 585 } 586 return mode; 587 } 588 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 589 590 /* map a generic video mode to a known mode number */ 591 static int 592 map_gen_mode_num(int type, int color, int mode) 593 { 594 static struct { 595 int from; 596 int to_color; 597 int to_mono; 598 } mode_map[] = { 599 { M_TEXT_80x30, M_VGA_C80x30, M_VGA_M80x30, }, 600 { M_TEXT_80x43, M_ENH_C80x43, M_ENH_B80x43, }, 601 { M_TEXT_80x50, M_VGA_C80x50, M_VGA_M80x50, }, 602 { M_TEXT_80x60, M_VGA_C80x60, M_VGA_M80x60, }, 603 }; 604 int i; 605 606 if (mode == M_TEXT_80x25) { 607 switch (type) { 608 609 case KD_VGA: 610 if (color) 611 return M_VGA_C80x25; 612 else 613 return M_VGA_M80x25; 614 break; 615 616 case KD_EGA: 617 if (color) 618 return M_ENH_C80x25; 619 else 620 return M_EGAMONO80x25; 621 break; 622 623 case KD_CGA: 624 return M_C80x25; 625 626 case KD_MONO: 627 case KD_HERCULES: 628 return M_EGAMONO80x25; /* XXX: this name is confusing */ 629 630 default: 631 return -1; 632 } 633 } 634 635 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 636 if (mode_map[i].from == mode) 637 return ((color) ? mode_map[i].to_color : mode_map[i].to_mono); 638 } 639 return mode; 640 } 641 642 /* turn the BIOS video number into our video mode number */ 643 static int 644 map_bios_mode_num(int type, int color, int bios_mode) 645 { 646 static int cga_modes[7] = { 647 M_B40x25, M_C40x25, /* 0, 1 */ 648 M_B80x25, M_C80x25, /* 2, 3 */ 649 M_BG320, M_CG320, 650 M_BG640, 651 }; 652 static int ega_modes[17] = { 653 M_ENH_B40x25, M_ENH_C40x25, /* 0, 1 */ 654 M_ENH_B80x25, M_ENH_C80x25, /* 2, 3 */ 655 M_BG320, M_CG320, 656 M_BG640, 657 M_EGAMONO80x25, /* 7 */ 658 8, 9, 10, 11, 12, 659 M_CG320_D, 660 M_CG640_E, 661 M_ENHMONOAPA2, /* XXX: video momery > 64K */ 662 M_ENH_CG640, /* XXX: video momery > 64K */ 663 }; 664 static int vga_modes[20] = { 665 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */ 666 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */ 667 M_BG320, M_CG320, 668 M_BG640, 669 M_VGA_M80x25, /* 7 */ 670 8, 9, 10, 11, 12, 671 M_CG320_D, 672 M_CG640_E, 673 M_ENHMONOAPA2, 674 M_ENH_CG640, 675 M_BG640x480, M_CG640x480, 676 M_VGA_CG320, 677 }; 678 679 switch (type) { 680 681 case KD_VGA: 682 if (bios_mode < sizeof(vga_modes)/sizeof(vga_modes[0])) 683 return vga_modes[bios_mode]; 684 else if (color) 685 return M_VGA_C80x25; 686 else 687 return M_VGA_M80x25; 688 break; 689 690 case KD_EGA: 691 if (bios_mode < sizeof(ega_modes)/sizeof(ega_modes[0])) 692 return ega_modes[bios_mode]; 693 else if (color) 694 return M_ENH_C80x25; 695 else 696 return M_EGAMONO80x25; 697 break; 698 699 case KD_CGA: 700 if (bios_mode < sizeof(cga_modes)/sizeof(cga_modes[0])) 701 return cga_modes[bios_mode]; 702 else 703 return M_C80x25; 704 break; 705 706 case KD_MONO: 707 case KD_HERCULES: 708 return M_EGAMONO80x25; /* XXX: this name is confusing */ 709 710 default: 711 break; 712 } 713 return -1; 714 } 715 716 /* look up a parameter table entry */ 717 static u_char * 718 get_mode_param(int mode) 719 { 720 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 721 if (mode >= V_MODE_MAP_SIZE) 722 mode = map_mode_num(mode); 723 #endif 724 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE)) 725 return mode_map[mode]; 726 else 727 return NULL; 728 } 729 730 #ifndef VGA_NO_BIOS 731 static void 732 fill_adapter_param(int code, video_adapter_t *adp) 733 { 734 static struct { 735 int primary; 736 int secondary; 737 } dcc[] = { 738 { DCC_MONO, DCC_EGA40 /* CGA monitor */ }, 739 { DCC_MONO, DCC_EGA80 /* CGA monitor */ }, 740 { DCC_MONO, DCC_EGA80 }, 741 { DCC_MONO, DCC_EGA80 }, 742 { DCC_CGA40, DCC_EGAMONO }, 743 { DCC_CGA80, DCC_EGAMONO }, 744 { DCC_EGA40 /* CGA monitor */, DCC_MONO}, 745 { DCC_EGA80 /* CGA monitor */, DCC_MONO}, 746 { DCC_EGA80, DCC_MONO }, 747 { DCC_EGA80, DCC_MONO }, 748 { DCC_EGAMONO, DCC_CGA40 }, 749 { DCC_EGAMONO, DCC_CGA80 }, 750 }; 751 752 if ((code < 0) || (code >= sizeof(dcc)/sizeof(dcc[0]))) { 753 adp[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 754 adp[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 755 } else { 756 adp[V_ADP_PRIMARY] = adapter_init_value[dcc[code].primary]; 757 adp[V_ADP_SECONDARY] = adapter_init_value[dcc[code].secondary]; 758 } 759 } 760 #endif /* VGA_NO_BIOS */ 761 762 static int 763 verify_adapter(video_adapter_t *adp) 764 { 765 vm_offset_t buf; 766 u_int16_t v; 767 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 768 u_int32_t p; 769 #endif 770 771 buf = BIOS_PADDRTOVADDR(adp->va_window); 772 v = readw(buf); 773 writew(buf, 0xA55A); 774 if (readw(buf) != 0xA55A) 775 return ENXIO; 776 writew(buf, v); 777 778 switch (adp->va_type) { 779 780 case KD_EGA: 781 outb(adp->va_crtc_addr, 7); 782 if (inb(adp->va_crtc_addr) == 7) { 783 adp->va_type = KD_VGA; 784 adp->va_name = "vga"; 785 adp->va_flags |= V_ADP_STATESAVE | V_ADP_PALETTE; 786 } 787 adp->va_flags |= V_ADP_STATELOAD | V_ADP_BORDER; 788 /* the color adapter may be in the 40x25 mode... XXX */ 789 790 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 791 /* get the BIOS video mode pointer */ 792 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8); 793 p = BIOS_SADDRTOLADDR(p); 794 if (ISMAPPED(p, sizeof(u_int32_t))) { 795 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p); 796 p = BIOS_SADDRTOLADDR(p); 797 if (ISMAPPED(p, V_MODE_PARAM_SIZE)) 798 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p); 799 } 800 #endif 801 break; 802 803 case KD_CGA: 804 adp->va_flags |= V_ADP_COLOR | V_ADP_BORDER; 805 /* may be in the 40x25 mode... XXX */ 806 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 807 /* get the BIOS video mode pointer */ 808 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 809 p = BIOS_SADDRTOLADDR(p); 810 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 811 #endif 812 break; 813 814 case KD_MONO: 815 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 816 /* get the BIOS video mode pointer */ 817 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 818 p = BIOS_SADDRTOLADDR(p); 819 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 820 #endif 821 break; 822 } 823 824 return 0; 825 } 826 827 static void 828 update_adapter_info(video_adapter_t *adp, video_info_t *info) 829 { 830 adp->va_flags &= ~V_ADP_COLOR; 831 adp->va_flags |= 832 (info->vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; 833 adp->va_crtc_addr = 834 (adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; 835 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window); 836 adp->va_window_size = info->vi_window_size; 837 adp->va_window_gran = info->vi_window_gran; 838 adp->va_window_orig = 0; 839 /* XXX */ 840 adp->va_buffer = info->vi_buffer; 841 adp->va_buffer_size = info->vi_buffer_size; 842 if (info->vi_mem_model == V_INFO_MM_VGAX) { 843 adp->va_line_width = info->vi_width/2; 844 } else if (info->vi_flags & V_INFO_GRAPHICS) { 845 switch (info->vi_depth/info->vi_planes) { 846 case 1: 847 adp->va_line_width = info->vi_width/8; 848 break; 849 case 2: 850 adp->va_line_width = info->vi_width/4; 851 break; 852 case 4: 853 adp->va_line_width = info->vi_width/2; 854 break; 855 case 8: 856 default: /* shouldn't happen */ 857 adp->va_line_width = info->vi_width; 858 break; 859 } 860 } else { 861 adp->va_line_width = info->vi_width; 862 } 863 adp->va_disp_start.x = 0; 864 adp->va_disp_start.y = 0; 865 bcopy(info, &adp->va_info, sizeof(adp->va_info)); 866 } 867 868 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 869 /* compare two parameter table entries */ 870 static int 871 comp_adpregs(u_char *buf1, u_char *buf2) 872 { 873 static struct { 874 u_char mask; 875 } params[V_MODE_PARAM_SIZE] = { 876 {0xff}, {0x00}, {0xff}, /* COLS}, ROWS}, POINTS */ 877 {0x00}, {0x00}, /* page length */ 878 {0xfe}, {0xff}, {0xff}, {0xff}, /* sequencer registers */ 879 {0xf3}, /* misc register */ 880 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, /* CRTC */ 881 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, 882 {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, 883 {0x00}, {0xff}, {0x7f}, {0xff}, {0xff}, 884 {0x7f}, {0xff}, {0xff}, {0xef}, {0xff}, 885 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* attribute controller regs */ 886 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 887 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 888 {0xff}, {0xff}, {0xff}, {0xff}, {0xf0}, 889 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* GDC register */ 890 {0xff}, {0xff}, {0xff}, {0xff}, 891 }; 892 int identical = TRUE; 893 int i; 894 895 if ((buf1 == NULL) || (buf2 == NULL)) 896 return COMP_DIFFERENT; 897 898 for (i = 0; i < sizeof(params)/sizeof(params[0]); ++i) { 899 if (params[i].mask == 0) /* don't care */ 900 continue; 901 if ((buf1[i] & params[i].mask) != (buf2[i] & params[i].mask)) 902 return COMP_DIFFERENT; 903 if (buf1[i] != buf2[i]) 904 identical = FALSE; 905 } 906 return (identical) ? COMP_IDENTICAL : COMP_SIMILAR; 907 } 908 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 909 910 /* probe video adapters and return the number of detected adapters */ 911 static int 912 probe_adapters(void) 913 { 914 video_adapter_t *adp; 915 video_info_t info; 916 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 917 u_char *mp; 918 #endif 919 int i; 920 921 /* do this test only once */ 922 if (vga_init_done) 923 return biosadapters; 924 vga_init_done = TRUE; 925 926 /* 927 * Locate display adapters. 928 * The AT architecture supports upto two adapters. `syscons' allows 929 * the following combinations of adapters: 930 * 1) MDA + CGA 931 * 2) MDA + EGA/VGA color 932 * 3) CGA + EGA/VGA mono 933 * Note that `syscons' doesn't bother with MCGA as it is only 934 * avaiable for low end PS/2 models which has 80286 or earlier CPUs, 935 * thus, they are not running FreeBSD! 936 * When there are two adapaters in the system, one becomes `primary' 937 * and the other `secondary'. The EGA adapter has a set of DIP 938 * switches on board for this information and the EGA BIOS copies 939 * it in the BIOS data area BIOSDATA_VIDEOSWITCH (40:88). 940 * The VGA BIOS has more sophisticated mechanism and has this 941 * information in BIOSDATA_DCCINDEX (40:8a), but it also maintains 942 * compatibility with the EGA BIOS by updating BIOSDATA_VIDEOSWITCH. 943 */ 944 945 /* 946 * Check rtc and BIOS data area. 947 * XXX: we don't use BIOSDATA_EQUIPMENT, since it is not a dead 948 * copy of RTC_EQUIPMENT. Bits 4 and 5 of ETC_EQUIPMENT are 949 * zeros for EGA and VGA. However, the EGA/VGA BIOS sets 950 * these bits in BIOSDATA_EQUIPMENT according to the monitor 951 * type detected. 952 */ 953 #ifndef VGA_NO_BIOS 954 if (*(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8)) { 955 /* EGA/VGA BIOS is present */ 956 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 957 biosadapter); 958 } else { 959 switch ((rtcin(RTC_EQUIPMENT) >> 4) & 3) { /* bit 4 and 5 */ 960 case 0: 961 /* EGA/VGA: shouldn't be happening */ 962 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 963 biosadapter); 964 break; 965 case 1: 966 /* CGA 40x25 */ 967 /* FIXME: switch to the 80x25 mode? XXX */ 968 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA40]; 969 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 970 break; 971 case 2: 972 /* CGA 80x25 */ 973 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA80]; 974 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 975 break; 976 case 3: 977 /* MDA */ 978 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 979 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 980 break; 981 } 982 } 983 #else 984 /* assume EGA/VGA? XXX */ 985 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_EGA80]; 986 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 987 #endif /* VGA_NO_BIOS */ 988 989 biosadapters = 0; 990 if (verify_adapter(&biosadapter[V_ADP_SECONDARY]) == 0) { 991 ++biosadapters; 992 biosadapter[V_ADP_SECONDARY].va_flags |= V_ADP_PROBED; 993 biosadapter[V_ADP_SECONDARY].va_mode = 994 biosadapter[V_ADP_SECONDARY].va_initial_mode = 995 map_bios_mode_num(biosadapter[V_ADP_SECONDARY].va_type, 996 biosadapter[V_ADP_SECONDARY].va_flags 997 & V_ADP_COLOR, 998 biosadapter[V_ADP_SECONDARY].va_initial_bios_mode); 999 } else { 1000 biosadapter[V_ADP_SECONDARY].va_type = -1; 1001 } 1002 if (verify_adapter(&biosadapter[V_ADP_PRIMARY]) == 0) { 1003 ++biosadapters; 1004 biosadapter[V_ADP_PRIMARY].va_flags |= V_ADP_PROBED; 1005 #ifndef VGA_NO_BIOS 1006 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 1007 readb(BIOS_PADDRTOVADDR(0x449)); 1008 #else 1009 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 3; /* XXX */ 1010 #endif 1011 biosadapter[V_ADP_PRIMARY].va_mode = 1012 biosadapter[V_ADP_PRIMARY].va_initial_mode = 1013 map_bios_mode_num(biosadapter[V_ADP_PRIMARY].va_type, 1014 biosadapter[V_ADP_PRIMARY].va_flags & V_ADP_COLOR, 1015 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode); 1016 } else { 1017 biosadapter[V_ADP_PRIMARY] = biosadapter[V_ADP_SECONDARY]; 1018 biosadapter[V_ADP_SECONDARY].va_type = -1; 1019 } 1020 if (biosadapters == 0) 1021 return biosadapters; 1022 biosadapter[V_ADP_PRIMARY].va_unit = V_ADP_PRIMARY; 1023 biosadapter[V_ADP_SECONDARY].va_unit = V_ADP_SECONDARY; 1024 1025 #if 0 /* we don't need these... */ 1026 fb_init_struct(&biosadapter[V_ADP_PRIMARY], ...); 1027 fb_init_struct(&biosadapter[V_ADP_SECONDARY], ...); 1028 #endif 1029 1030 #if notyet 1031 /* 1032 * We cannot have two video adapter of the same type; there must be 1033 * only one of color or mono adapter, or one each of them. 1034 */ 1035 if (biosadapters > 1) { 1036 if (!((biosadapter[0].va_flags ^ biosadapter[1].va_flags) 1037 & V_ADP_COLOR)) 1038 /* we have two mono or color adapters!! */ 1039 return (biosadapters = 0); 1040 } 1041 #endif 1042 1043 /* 1044 * Ensure a zero start address. This is mainly to recover after 1045 * switching from pcvt using userconfig(). The registers are w/o 1046 * for old hardware so it's too hard to relocate the active screen 1047 * memory. 1048 * This must be done before vga_save_state() for VGA. 1049 */ 1050 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 12); 1051 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1052 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 13); 1053 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1054 1055 /* the video mode parameter table in EGA/VGA BIOS */ 1056 /* NOTE: there can be only one EGA/VGA, wheather color or mono, 1057 * recognized by the video BIOS. 1058 */ 1059 if ((biosadapter[V_ADP_PRIMARY].va_type == KD_EGA) || 1060 (biosadapter[V_ADP_PRIMARY].va_type == KD_VGA)) { 1061 adp = &biosadapter[V_ADP_PRIMARY]; 1062 } else if ((biosadapter[V_ADP_SECONDARY].va_type == KD_EGA) || 1063 (biosadapter[V_ADP_SECONDARY].va_type == KD_VGA)) { 1064 adp = &biosadapter[V_ADP_SECONDARY]; 1065 } else { 1066 adp = NULL; 1067 } 1068 bzero(mode_map, sizeof(mode_map)); 1069 if (adp != NULL) { 1070 if (adp->va_type == KD_VGA) { 1071 vga_save_state(adp, &adpstate, sizeof(adpstate)); 1072 for(i = 0; i < 16; i++) 1073 adp->va_palette_regs[i] = adpstate.regs[35 + i]; 1074 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1075 mode_map[adp->va_initial_mode] = adpstate.regs; 1076 rows_offset = 1; 1077 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1078 if (video_mode_ptr == NULL) { 1079 mode_map[adp->va_initial_mode] = adpstate.regs; 1080 rows_offset = 1; 1081 } else { 1082 /* discard the table if we are not familiar with it... */ 1083 map_mode_table(mode_map, video_mode_ptr, M_VGA_CG320 + 1); 1084 mp = get_mode_param(adp->va_initial_mode); 1085 if (mp != NULL) 1086 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs)); 1087 switch (comp_adpregs(adpstate.regs, mp)) { 1088 case COMP_IDENTICAL: 1089 /* 1090 * OK, this parameter table looks reasonably familiar 1091 * to us... 1092 */ 1093 /* 1094 * This is a kludge for Toshiba DynaBook SS433 1095 * whose BIOS video mode table entry has the actual # 1096 * of rows at the offset 1; BIOSes from other 1097 * manufacturers store the # of rows - 1 there. XXX 1098 */ 1099 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1100 break; 1101 1102 case COMP_SIMILAR: 1103 /* 1104 * Not exactly the same, but similar enough to be 1105 * trusted. However, use the saved register values 1106 * for the initial mode and other modes which are 1107 * based on the initial mode. 1108 */ 1109 mode_map[adp->va_initial_mode] = adpstate.regs; 1110 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1111 adpstate.regs[1] -= rows_offset - 1; 1112 break; 1113 1114 case COMP_DIFFERENT: 1115 default: 1116 /* 1117 * Don't use the paramter table in BIOS. It doesn't 1118 * look familiar to us. Video mode switching is allowed 1119 * only if the new mode is the same as or based on 1120 * the initial mode. 1121 */ 1122 video_mode_ptr = NULL; 1123 bzero(mode_map, sizeof(mode_map)); 1124 mode_map[adp->va_initial_mode] = adpstate.regs; 1125 rows_offset = 1; 1126 break; 1127 } 1128 } 1129 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1130 1131 #ifndef VGA_NO_MODE_CHANGE 1132 adp->va_flags |= V_ADP_MODECHANGE; 1133 #endif 1134 #ifndef VGA_NO_FONT_LOADING 1135 adp->va_flags |= V_ADP_FONT; 1136 #endif 1137 } else if (adp->va_type == KD_EGA) { 1138 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1139 rows_offset = 1; 1140 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1141 if (video_mode_ptr == NULL) { 1142 rows_offset = 1; 1143 } else { 1144 map_mode_table(mode_map, video_mode_ptr, M_ENH_C80x25 + 1); 1145 /* XXX how can one validate the EGA table... */ 1146 mp = get_mode_param(adp->va_initial_mode); 1147 if (mp != NULL) { 1148 adp->va_flags |= V_ADP_MODECHANGE; 1149 #ifndef VGA_NO_FONT_LOADING 1150 adp->va_flags |= V_ADP_FONT; 1151 #endif 1152 rows_offset = 1; 1153 } else { 1154 /* 1155 * This is serious. We will not be able to switch video 1156 * modes at all... 1157 */ 1158 video_mode_ptr = NULL; 1159 bzero(mode_map, sizeof(mode_map)); 1160 rows_offset = 1; 1161 } 1162 } 1163 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1164 } 1165 } 1166 1167 /* remove conflicting modes if we have more than one adapter */ 1168 if (biosadapters > 0) { 1169 for (i = 0; i < biosadapters; ++i) { 1170 if (!(biosadapter[i].va_flags & V_ADP_MODECHANGE)) 1171 continue; 1172 clear_mode_map(&biosadapter[i], mode_map, M_VGA_CG320 + 1, 1173 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1174 V_INFO_COLOR : 0); 1175 if ((biosadapter[i].va_type == KD_VGA) 1176 || (biosadapter[i].va_type == KD_EGA)) { 1177 biosadapter[i].va_io_base = 1178 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1179 IO_VGA : IO_MDA; 1180 biosadapter[i].va_io_size = 32; 1181 } 1182 } 1183 } 1184 1185 /* buffer address */ 1186 vga_get_info(&biosadapter[V_ADP_PRIMARY], 1187 biosadapter[V_ADP_PRIMARY].va_initial_mode, &info); 1188 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1189 update_adapter_info(&biosadapter[V_ADP_PRIMARY], &info); 1190 1191 if (biosadapters > 1) { 1192 vga_get_info(&biosadapter[V_ADP_SECONDARY], 1193 biosadapter[V_ADP_SECONDARY].va_initial_mode, &info); 1194 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1195 update_adapter_info(&biosadapter[V_ADP_SECONDARY], &info); 1196 } 1197 1198 /* 1199 * XXX: we should verify the following values for the primary adapter... 1200 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463); 1201 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02) 1202 * ? 0 : V_ADP_COLOR; 1203 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a); 1204 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484); 1205 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485); 1206 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c); 1207 */ 1208 1209 return biosadapters; 1210 } 1211 1212 /* set the scan line length in pixel */ 1213 static int 1214 set_line_length(video_adapter_t *adp, int pixel) 1215 { 1216 u_char *mp; 1217 int ppw; /* pixels per word */ 1218 int bpl; /* bytes per line */ 1219 int count; 1220 1221 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1222 return ENODEV; 1223 mp = get_mode_param(adp->va_mode); 1224 if (mp == NULL) 1225 return EINVAL; 1226 1227 switch (adp->va_info.vi_mem_model) { 1228 case V_INFO_MM_PLANAR: 1229 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1230 count = (pixel + ppw - 1)/ppw/2; 1231 bpl = ((pixel + ppw - 1)/ppw/2)*4; 1232 break; 1233 case V_INFO_MM_PACKED: 1234 count = (pixel + 7)/8; 1235 bpl = ((pixel + 7)/8)*8; 1236 break; 1237 case V_INFO_MM_TEXT: 1238 count = (pixel + 7)/8; /* columns */ 1239 bpl = (pixel + 7)/8; /* columns */ 1240 break; 1241 default: 1242 return ENODEV; 1243 } 1244 1245 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */ 1246 count *= 2; /* byte mode */ 1247 outb(adp->va_crtc_addr, 0x13); 1248 outb(adp->va_crtc_addr + 1, count); 1249 adp->va_line_width = bpl; 1250 1251 return 0; 1252 } 1253 1254 static int 1255 set_display_start(video_adapter_t *adp, int x, int y) 1256 { 1257 int off; /* byte offset (graphics mode)/word offset (text mode) */ 1258 int poff; /* pixel offset */ 1259 int roff; /* row offset */ 1260 int ppb; /* pixels per byte */ 1261 1262 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1263 x &= ~7; 1264 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) { 1265 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1266 off = y*adp->va_line_width + x/ppb; 1267 roff = 0; 1268 poff = x%ppb; 1269 } else { 1270 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1271 outb(TSIDX, 1); 1272 if (inb(TSREG) & 1) 1273 ppb = 9; 1274 else 1275 ppb = 8; 1276 } else { 1277 ppb = 8; 1278 } 1279 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb; 1280 roff = y%adp->va_info.vi_cheight; 1281 /* FIXME: is this correct? XXX */ 1282 if (ppb == 8) 1283 poff = x%ppb; 1284 else 1285 poff = (x + 8)%ppb; 1286 } 1287 1288 /* start address */ 1289 outb(adp->va_crtc_addr, 0xc); /* high */ 1290 outb(adp->va_crtc_addr + 1, off >> 8); 1291 outb(adp->va_crtc_addr, 0xd); /* low */ 1292 outb(adp->va_crtc_addr + 1, off & 0xff); 1293 1294 /* horizontal pel pan */ 1295 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1296 inb(adp->va_crtc_addr + 6); 1297 outb(ATC, 0x13 | 0x20); 1298 outb(ATC, poff); 1299 inb(adp->va_crtc_addr + 6); 1300 outb(ATC, 0x20); 1301 } 1302 1303 /* preset raw scan */ 1304 outb(adp->va_crtc_addr, 8); 1305 outb(adp->va_crtc_addr + 1, roff); 1306 1307 adp->va_disp_start.x = x; 1308 adp->va_disp_start.y = y; 1309 return 0; 1310 } 1311 1312 #ifndef VGA_NO_MODE_CHANGE 1313 #ifdef __i386__ /* XXX */ 1314 static void 1315 fill(int val, void *d, size_t size) 1316 { 1317 u_char *p = d; 1318 1319 while (size-- > 0) 1320 *p++ = val; 1321 } 1322 #endif /* __i386__ */ 1323 1324 static void 1325 filll_io(int val, vm_offset_t d, size_t size) 1326 { 1327 while (size-- > 0) { 1328 writel(d, val); 1329 d += sizeof(u_int32_t); 1330 } 1331 } 1332 #endif /* !VGA_NO_MODE_CHANGE */ 1333 1334 /* entry points */ 1335 1336 #if 0 1337 static int 1338 vga_nop(void) 1339 { 1340 return 0; 1341 } 1342 #endif 1343 1344 static int 1345 vga_error(void) 1346 { 1347 return ENODEV; 1348 } 1349 1350 static int 1351 vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 1352 { 1353 probe_adapters(); 1354 if (unit >= biosadapters) 1355 return ENXIO; 1356 1357 *adpp = &biosadapter[unit]; 1358 1359 return 0; 1360 } 1361 1362 static int 1363 vga_init(int unit, video_adapter_t *adp, int flags) 1364 { 1365 if ((unit >= biosadapters) || (adp == NULL) || !probe_done(adp)) 1366 return ENXIO; 1367 1368 if (!init_done(adp)) { 1369 /* nothing to do really... */ 1370 adp->va_flags |= V_ADP_INITIALIZED; 1371 } 1372 1373 if (!config_done(adp)) { 1374 if (vid_register(adp) < 0) 1375 return ENXIO; 1376 adp->va_flags |= V_ADP_REGISTERED; 1377 } 1378 if (vga_sub_configure != NULL) 1379 (*vga_sub_configure)(0); 1380 1381 return 0; 1382 } 1383 1384 /* 1385 * get_info(): 1386 * Return the video_info structure of the requested video mode. 1387 * 1388 * all adapters 1389 */ 1390 static int 1391 vga_get_info(video_adapter_t *adp, int mode, video_info_t *info) 1392 { 1393 int i; 1394 1395 if (!vga_init_done) 1396 return ENXIO; 1397 1398 mode = map_gen_mode_num(adp->va_type, adp->va_flags & V_ADP_COLOR, mode); 1399 #ifndef VGA_NO_MODE_CHANGE 1400 if (adp->va_flags & V_ADP_MODECHANGE) { 1401 /* 1402 * If the parameter table entry for this mode is not found, 1403 * the mode is not supported... 1404 */ 1405 if (get_mode_param(mode) == NULL) 1406 return EINVAL; 1407 } else 1408 #endif /* VGA_NO_MODE_CHANGE */ 1409 { 1410 /* 1411 * Even if we don't support video mode switching on this adapter, 1412 * the information on the initial (thus current) video mode 1413 * should be made available. 1414 */ 1415 if (mode != adp->va_initial_mode) 1416 return EINVAL; 1417 } 1418 1419 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1420 if (bios_vmode[i].vi_mode == NA) 1421 continue; 1422 if (mode == bios_vmode[i].vi_mode) { 1423 *info = bios_vmode[i]; 1424 /* XXX */ 1425 info->vi_buffer_size = info->vi_window_size*info->vi_planes; 1426 return 0; 1427 } 1428 } 1429 return EINVAL; 1430 } 1431 1432 /* 1433 * query_mode(): 1434 * Find a video mode matching the requested parameters. 1435 * Fields filled with 0 are considered "don't care" fields and 1436 * match any modes. 1437 * 1438 * all adapters 1439 */ 1440 static int 1441 vga_query_mode(video_adapter_t *adp, video_info_t *info) 1442 { 1443 int i; 1444 1445 if (!vga_init_done) 1446 return ENXIO; 1447 1448 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1449 if (bios_vmode[i].vi_mode == NA) 1450 continue; 1451 1452 if ((info->vi_width != 0) 1453 && (info->vi_width != bios_vmode[i].vi_width)) 1454 continue; 1455 if ((info->vi_height != 0) 1456 && (info->vi_height != bios_vmode[i].vi_height)) 1457 continue; 1458 if ((info->vi_cwidth != 0) 1459 && (info->vi_cwidth != bios_vmode[i].vi_cwidth)) 1460 continue; 1461 if ((info->vi_cheight != 0) 1462 && (info->vi_cheight != bios_vmode[i].vi_cheight)) 1463 continue; 1464 if ((info->vi_depth != 0) 1465 && (info->vi_depth != bios_vmode[i].vi_depth)) 1466 continue; 1467 if ((info->vi_planes != 0) 1468 && (info->vi_planes != bios_vmode[i].vi_planes)) 1469 continue; 1470 /* XXX: should check pixel format, memory model */ 1471 if ((info->vi_flags != 0) 1472 && (info->vi_flags != bios_vmode[i].vi_flags)) 1473 continue; 1474 1475 /* verify if this mode is supported on this adapter */ 1476 if (vga_get_info(adp, bios_vmode[i].vi_mode, info)) 1477 continue; 1478 return 0; 1479 } 1480 return ENODEV; 1481 } 1482 1483 /* 1484 * set_mode(): 1485 * Change the video mode. 1486 * 1487 * EGA/VGA 1488 */ 1489 1490 #ifndef VGA_NO_MODE_CHANGE 1491 #ifdef VGA_WIDTH90 1492 static void 1493 set_width90(adp_state_t *params) 1494 { 1495 /* 1496 * Based on code submitted by Kelly Yancey (kbyanc@freedomnet.com) 1497 * and alexv@sui.gda.itesm.mx. 1498 */ 1499 params->regs[5] |= 1; /* toggle 8 pixel wide fonts */ 1500 params->regs[10+0x0] = 0x6b; 1501 params->regs[10+0x1] = 0x59; 1502 params->regs[10+0x2] = 0x5a; 1503 params->regs[10+0x3] = 0x8e; 1504 params->regs[10+0x4] = 0x5e; 1505 params->regs[10+0x5] = 0x8a; 1506 params->regs[10+0x13] = 45; 1507 params->regs[35+0x13] = 0; 1508 } 1509 #endif /* VGA_WIDTH90 */ 1510 #endif /* !VGA_NO_MODE_CHANGE */ 1511 1512 static int 1513 vga_set_mode(video_adapter_t *adp, int mode) 1514 { 1515 #ifndef VGA_NO_MODE_CHANGE 1516 video_info_t info; 1517 adp_state_t params; 1518 1519 prologue(adp, V_ADP_MODECHANGE, ENODEV); 1520 1521 mode = map_gen_mode_num(adp->va_type, 1522 adp->va_flags & V_ADP_COLOR, mode); 1523 if (vga_get_info(adp, mode, &info)) 1524 return EINVAL; 1525 1526 #if VGA_DEBUG > 1 1527 printf("vga_set_mode(): setting mode %d\n", mode); 1528 #endif 1529 1530 params.sig = V_STATE_SIG; 1531 bcopy(get_mode_param(mode), params.regs, sizeof(params.regs)); 1532 1533 switch (mode) { 1534 #ifdef VGA_WIDTH90 1535 case M_VGA_C90x60: case M_VGA_M90x60: 1536 set_width90(¶ms); 1537 /* FALLTHROUGH */ 1538 #endif 1539 case M_VGA_C80x60: case M_VGA_M80x60: 1540 params.regs[2] = 0x08; 1541 params.regs[19] = 0x47; 1542 goto special_480l; 1543 1544 #ifdef VGA_WIDTH90 1545 case M_VGA_C90x30: case M_VGA_M90x30: 1546 set_width90(¶ms); 1547 /* FALLTHROUGH */ 1548 #endif 1549 case M_VGA_C80x30: case M_VGA_M80x30: 1550 params.regs[19] = 0x4f; 1551 special_480l: 1552 params.regs[9] |= 0xc0; 1553 params.regs[16] = 0x08; 1554 params.regs[17] = 0x3e; 1555 params.regs[26] = 0xea; 1556 params.regs[28] = 0xdf; 1557 params.regs[31] = 0xe7; 1558 params.regs[32] = 0x04; 1559 goto setup_mode; 1560 1561 #ifdef VGA_WIDTH90 1562 case M_VGA_C90x43: case M_VGA_M90x43: 1563 set_width90(¶ms); 1564 /* FALLTHROUGH */ 1565 #endif 1566 case M_ENH_C80x43: case M_ENH_B80x43: 1567 params.regs[28] = 87; 1568 goto special_80x50; 1569 1570 #ifdef VGA_WIDTH90 1571 case M_VGA_C90x50: case M_VGA_M90x50: 1572 set_width90(¶ms); 1573 /* FALLTHROUGH */ 1574 #endif 1575 case M_VGA_C80x50: case M_VGA_M80x50: 1576 special_80x50: 1577 params.regs[2] = 8; 1578 params.regs[19] = 7; 1579 goto setup_mode; 1580 1581 #ifdef VGA_WIDTH90 1582 case M_VGA_C90x25: case M_VGA_M90x25: 1583 set_width90(¶ms); 1584 /* FALLTHROUGH */ 1585 #endif 1586 case M_VGA_C40x25: case M_VGA_C80x25: 1587 case M_VGA_M80x25: 1588 case M_B40x25: case M_C40x25: 1589 case M_B80x25: case M_C80x25: 1590 case M_ENH_B40x25: case M_ENH_C40x25: 1591 case M_ENH_B80x25: case M_ENH_C80x25: 1592 case M_EGAMONO80x25: 1593 1594 setup_mode: 1595 vga_load_state(adp, ¶ms); 1596 break; 1597 1598 case M_VGA_MODEX: 1599 /* "unchain" the VGA mode */ 1600 params.regs[5-1+0x04] &= 0xf7; 1601 params.regs[5-1+0x04] |= 0x04; 1602 /* turn off doubleword mode */ 1603 params.regs[10+0x14] &= 0xbf; 1604 /* turn off word addressing */ 1605 params.regs[10+0x17] |= 0x40; 1606 /* set logical screen width */ 1607 params.regs[10+0x13] = 80; 1608 /* set 240 lines */ 1609 params.regs[10+0x11] = 0x2c; 1610 params.regs[10+0x06] = 0x0d; 1611 params.regs[10+0x07] = 0x3e; 1612 params.regs[10+0x10] = 0xea; 1613 params.regs[10+0x11] = 0xac; 1614 params.regs[10+0x12] = 0xdf; 1615 params.regs[10+0x15] = 0xe7; 1616 params.regs[10+0x16] = 0x06; 1617 /* set vertical sync polarity to reflect aspect ratio */ 1618 params.regs[9] = 0xe3; 1619 goto setup_grmode; 1620 1621 case M_BG320: case M_CG320: case M_BG640: 1622 case M_CG320_D: case M_CG640_E: 1623 case M_CG640x350: case M_ENH_CG640: 1624 case M_BG640x480: case M_CG640x480: case M_VGA_CG320: 1625 1626 setup_grmode: 1627 vga_load_state(adp, ¶ms); 1628 break; 1629 1630 default: 1631 return EINVAL; 1632 } 1633 1634 adp->va_mode = mode; 1635 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1636 update_adapter_info(adp, &info); 1637 1638 /* move hardware cursor out of the way */ 1639 (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1); 1640 1641 return 0; 1642 #else /* VGA_NO_MODE_CHANGE */ 1643 return ENODEV; 1644 #endif /* VGA_NO_MODE_CHANGE */ 1645 } 1646 1647 #ifndef VGA_NO_FONT_LOADING 1648 1649 static void 1650 set_font_mode(video_adapter_t *adp, u_char *buf) 1651 { 1652 u_char *mp; 1653 1654 crit_enter(); 1655 1656 /* save register values */ 1657 if (adp->va_type == KD_VGA) { 1658 outb(TSIDX, 0x02); buf[0] = inb(TSREG); 1659 outb(TSIDX, 0x04); buf[1] = inb(TSREG); 1660 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG); 1661 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG); 1662 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG); 1663 inb(adp->va_crtc_addr + 6); 1664 outb(ATC, 0x10); buf[5] = inb(ATC + 1); 1665 } else /* if (adp->va_type == KD_EGA) */ { 1666 /* 1667 * EGA cannot be read; copy parameters from the mode parameter 1668 * table. 1669 */ 1670 mp = get_mode_param(adp->va_mode); 1671 buf[0] = mp[5 + 0x02 - 1]; 1672 buf[1] = mp[5 + 0x04 - 1]; 1673 buf[2] = mp[55 + 0x04]; 1674 buf[3] = mp[55 + 0x05]; 1675 buf[4] = mp[55 + 0x06]; 1676 buf[5] = mp[35 + 0x10]; 1677 } 1678 1679 /* setup vga for loading fonts */ 1680 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1681 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01); 1682 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1683 outb(ATC, 0x20); /* enable palette */ 1684 1685 #if VGA_SLOW_IOACCESS 1686 #ifdef VGA_ALT_SEQACCESS 1687 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1688 #endif 1689 outb(TSIDX, 0x02); outb(TSREG, 0x04); 1690 outb(TSIDX, 0x04); outb(TSREG, 0x07); 1691 #ifdef VGA_ALT_SEQACCESS 1692 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1693 #endif 1694 outb(GDCIDX, 0x04); outb(GDCREG, 0x02); 1695 outb(GDCIDX, 0x05); outb(GDCREG, 0x00); 1696 outb(GDCIDX, 0x06); outb(GDCREG, 0x04); 1697 #else /* VGA_SLOW_IOACCESS */ 1698 #ifdef VGA_ALT_SEQACCESS 1699 outw(TSIDX, 0x0100); 1700 #endif 1701 outw(TSIDX, 0x0402); 1702 outw(TSIDX, 0x0704); 1703 #ifdef VGA_ALT_SEQACCESS 1704 outw(TSIDX, 0x0300); 1705 #endif 1706 outw(GDCIDX, 0x0204); 1707 outw(GDCIDX, 0x0005); 1708 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */ 1709 #endif /* VGA_SLOW_IOACCESS */ 1710 1711 crit_exit(); 1712 } 1713 1714 static void 1715 set_normal_mode(video_adapter_t *adp, u_char *buf) 1716 { 1717 crit_enter(); 1718 1719 /* setup vga for normal operation mode again */ 1720 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1721 outb(ATC, 0x10); outb(ATC, buf[5]); 1722 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1723 outb(ATC, 0x20); /* enable palette */ 1724 1725 #if VGA_SLOW_IOACCESS 1726 #ifdef VGA_ALT_SEQACCESS 1727 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1728 #endif 1729 outb(TSIDX, 0x02); outb(TSREG, buf[0]); 1730 outb(TSIDX, 0x04); outb(TSREG, buf[1]); 1731 #ifdef VGA_ALT_SEQACCESS 1732 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1733 #endif 1734 outb(GDCIDX, 0x04); outb(GDCREG, buf[2]); 1735 outb(GDCIDX, 0x05); outb(GDCREG, buf[3]); 1736 if (adp->va_crtc_addr == MONO_CRTC) { 1737 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x08); 1738 } else { 1739 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x0c); 1740 } 1741 #else /* VGA_SLOW_IOACCESS */ 1742 #ifdef VGA_ALT_SEQACCESS 1743 outw(TSIDX, 0x0100); 1744 #endif 1745 outw(TSIDX, 0x0002 | (buf[0] << 8)); 1746 outw(TSIDX, 0x0004 | (buf[1] << 8)); 1747 #ifdef VGA_ALT_SEQACCESS 1748 outw(TSIDX, 0x0300); 1749 #endif 1750 outw(GDCIDX, 0x0004 | (buf[2] << 8)); 1751 outw(GDCIDX, 0x0005 | (buf[3] << 8)); 1752 if (adp->va_crtc_addr == MONO_CRTC) 1753 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x08)<<8)); 1754 else 1755 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8)); 1756 #endif /* VGA_SLOW_IOACCESS */ 1757 1758 crit_exit(); 1759 } 1760 1761 #endif /* VGA_NO_FONT_LOADING */ 1762 1763 /* 1764 * save_font(): 1765 * Read the font data in the requested font page from the video adapter. 1766 * 1767 * EGA/VGA 1768 */ 1769 static int 1770 vga_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1771 int ch, int count) 1772 { 1773 #ifndef VGA_NO_FONT_LOADING 1774 u_char buf[PARAM_BUFSIZE]; 1775 u_int32_t segment; 1776 int c; 1777 #ifdef VGA_ALT_SEQACCESS 1778 u_char val = 0; 1779 #endif 1780 1781 prologue(adp, V_ADP_FONT, ENODEV); 1782 1783 if (fontsize < 14) { 1784 /* FONT_8 */ 1785 fontsize = 8; 1786 } else if (fontsize >= 32) { 1787 fontsize = 32; 1788 } else if (fontsize >= 16) { 1789 /* FONT_16 */ 1790 fontsize = 16; 1791 } else { 1792 /* FONT_14 */ 1793 fontsize = 14; 1794 } 1795 1796 if (page < 0 || page >= 8) 1797 return EINVAL; 1798 segment = FONT_BUF + 0x4000*page; 1799 if (page > 3) 1800 segment -= 0xe000; 1801 1802 #ifdef VGA_ALT_SEQACCESS 1803 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1804 crit_enter(); 1805 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1806 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1807 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1808 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1809 crit_exit(); 1810 } 1811 #endif 1812 1813 set_font_mode(adp, buf); 1814 if (fontsize == 32) { 1815 bcopy_fromio(segment + ch*32, data, fontsize*count); 1816 } else { 1817 for (c = ch; count > 0; ++c, --count) { 1818 bcopy_fromio(segment + c*32, data, fontsize); 1819 data += fontsize; 1820 } 1821 } 1822 set_normal_mode(adp, buf); 1823 1824 #ifdef VGA_ALT_SEQACCESS 1825 if (adp->va_type == KD_VGA) { 1826 crit_enter(); 1827 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1828 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1829 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1830 crit_exit(); 1831 } 1832 #endif 1833 1834 return 0; 1835 #else /* VGA_NO_FONT_LOADING */ 1836 return ENODEV; 1837 #endif /* VGA_NO_FONT_LOADING */ 1838 } 1839 1840 /* 1841 * load_font(): 1842 * Set the font data in the requested font page. 1843 * NOTE: it appears that some recent video adapters do not support 1844 * the font page other than 0... XXX 1845 * 1846 * EGA/VGA 1847 */ 1848 static int 1849 vga_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1850 int ch, int count) 1851 { 1852 #ifndef VGA_NO_FONT_LOADING 1853 u_char buf[PARAM_BUFSIZE]; 1854 u_int32_t segment; 1855 int c; 1856 #ifdef VGA_ALT_SEQACCESS 1857 u_char val = 0; 1858 #endif 1859 1860 prologue(adp, V_ADP_FONT, ENODEV); 1861 1862 if (fontsize < 14) { 1863 /* FONT_8 */ 1864 fontsize = 8; 1865 } else if (fontsize >= 32) { 1866 fontsize = 32; 1867 } else if (fontsize >= 16) { 1868 /* FONT_16 */ 1869 fontsize = 16; 1870 } else { 1871 /* FONT_14 */ 1872 fontsize = 14; 1873 } 1874 1875 if (page < 0 || page >= 8) 1876 return EINVAL; 1877 segment = FONT_BUF + 0x4000*page; 1878 if (page > 3) 1879 segment -= 0xe000; 1880 1881 #ifdef VGA_ALT_SEQACCESS 1882 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1883 crit_enter(); 1884 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1885 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1886 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1887 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1888 crit_exit(); 1889 } 1890 #endif 1891 1892 set_font_mode(adp, buf); 1893 if (fontsize == 32) { 1894 bcopy_toio(data, segment + ch*32, fontsize*count); 1895 } else { 1896 for (c = ch; count > 0; ++c, --count) { 1897 bcopy_toio(data, segment + c*32, fontsize); 1898 data += fontsize; 1899 } 1900 } 1901 set_normal_mode(adp, buf); 1902 1903 #ifdef VGA_ALT_SEQACCESS 1904 if (adp->va_type == KD_VGA) { 1905 crit_enter(); 1906 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1907 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1908 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1909 crit_exit(); 1910 } 1911 #endif 1912 1913 return 0; 1914 #else /* VGA_NO_FONT_LOADING */ 1915 return ENODEV; 1916 #endif /* VGA_NO_FONT_LOADING */ 1917 } 1918 1919 /* 1920 * show_font(): 1921 * Activate the requested font page. 1922 * NOTE: it appears that some recent video adapters do not support 1923 * the font page other than 0... XXX 1924 * 1925 * EGA/VGA 1926 */ 1927 static int 1928 vga_show_font(video_adapter_t *adp, int page) 1929 { 1930 #ifndef VGA_NO_FONT_LOADING 1931 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f }; 1932 1933 prologue(adp, V_ADP_FONT, ENODEV); 1934 if (page < 0 || page >= 8) 1935 return EINVAL; 1936 1937 crit_enter(); 1938 outb(TSIDX, 0x03); outb(TSREG, cg[page]); 1939 crit_exit(); 1940 1941 return 0; 1942 #else /* VGA_NO_FONT_LOADING */ 1943 return ENODEV; 1944 #endif /* VGA_NO_FONT_LOADING */ 1945 } 1946 1947 /* 1948 * save_palette(): 1949 * Read DAC values. The values have expressed in 8 bits. 1950 * 1951 * VGA 1952 */ 1953 static int 1954 vga_save_palette(video_adapter_t *adp, u_char *palette) 1955 { 1956 int i; 1957 1958 prologue(adp, V_ADP_PALETTE, ENODEV); 1959 1960 /* 1961 * We store 8 bit values in the palette buffer, while the standard 1962 * VGA has 6 bit DAC . 1963 */ 1964 outb(PALRADR, 0x00); 1965 for (i = 0; i < 256*3; ++i) 1966 palette[i] = inb(PALDATA) << 2; 1967 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1968 return 0; 1969 } 1970 1971 static int 1972 vga_save_palette2(video_adapter_t *adp, int base, int count, 1973 u_char *r, u_char *g, u_char *b) 1974 { 1975 int i; 1976 1977 prologue(adp, V_ADP_PALETTE, ENODEV); 1978 1979 outb(PALRADR, base); 1980 for (i = 0; i < count; ++i) { 1981 r[i] = inb(PALDATA) << 2; 1982 g[i] = inb(PALDATA) << 2; 1983 b[i] = inb(PALDATA) << 2; 1984 } 1985 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1986 return 0; 1987 } 1988 1989 /* 1990 * load_palette(): 1991 * Set DAC values. 1992 * 1993 * VGA 1994 */ 1995 static int 1996 vga_load_palette(video_adapter_t *adp, const u_char *palette) 1997 { 1998 int i; 1999 2000 prologue(adp, V_ADP_PALETTE, ENODEV); 2001 2002 outb(PIXMASK, 0xff); /* no pixelmask */ 2003 outb(PALWADR, 0x00); 2004 for (i = 0; i < 256*3; ++i) 2005 outb(PALDATA, palette[i] >> 2); 2006 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2007 outb(ATC, 0x20); /* enable palette */ 2008 return 0; 2009 } 2010 2011 static int 2012 vga_load_palette2(video_adapter_t *adp, int base, int count, 2013 u_char *r, u_char *g, u_char *b) 2014 { 2015 int i; 2016 2017 prologue(adp, V_ADP_PALETTE, ENODEV); 2018 2019 outb(PIXMASK, 0xff); /* no pixelmask */ 2020 outb(PALWADR, base); 2021 for (i = 0; i < count; ++i) { 2022 outb(PALDATA, r[i] >> 2); 2023 outb(PALDATA, g[i] >> 2); 2024 outb(PALDATA, b[i] >> 2); 2025 } 2026 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2027 outb(ATC, 0x20); /* enable palette */ 2028 return 0; 2029 } 2030 2031 /* 2032 * set_border(): 2033 * Change the border color. 2034 * 2035 * CGA/EGA/VGA 2036 */ 2037 static int 2038 vga_set_border(video_adapter_t *adp, int color) 2039 { 2040 prologue(adp, V_ADP_BORDER, ENODEV); 2041 2042 switch (adp->va_type) { 2043 case KD_EGA: 2044 case KD_VGA: 2045 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 2046 outb(ATC, 0x31); outb(ATC, color & 0xff); 2047 break; 2048 case KD_CGA: 2049 outb(adp->va_crtc_addr + 5, color & 0x0f); /* color select register */ 2050 break; 2051 case KD_MONO: 2052 case KD_HERCULES: 2053 default: 2054 break; 2055 } 2056 return 0; 2057 } 2058 2059 /* 2060 * save_state(): 2061 * Read video register values. 2062 * NOTE: this function only reads the standard EGA/VGA registers. 2063 * any extra/extended registers of SVGA adapters are not saved. 2064 * 2065 * VGA 2066 */ 2067 static int 2068 vga_save_state(video_adapter_t *adp, void *p, size_t size) 2069 { 2070 video_info_t info; 2071 u_char *buf; 2072 int crtc_addr; 2073 int i, j; 2074 2075 if (size == 0) { 2076 /* return the required buffer size */ 2077 prologue(adp, V_ADP_STATESAVE, 0); 2078 return sizeof(adp_state_t); 2079 } else { 2080 prologue(adp, V_ADP_STATESAVE, ENODEV); 2081 if (size < sizeof(adp_state_t)) 2082 return EINVAL; 2083 } 2084 2085 ((adp_state_t *)p)->sig = V_STATE_SIG; 2086 buf = ((adp_state_t *)p)->regs; 2087 bzero(buf, V_MODE_PARAM_SIZE); 2088 crtc_addr = adp->va_crtc_addr; 2089 2090 crit_enter(); 2091 2092 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2093 for (i = 0, j = 5; i < 4; i++) { 2094 outb(TSIDX, i + 1); 2095 buf[j++] = inb(TSREG); 2096 } 2097 buf[9] = inb(MISC + 10); /* dot-clock */ 2098 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2099 2100 for (i = 0, j = 10; i < 25; i++) { /* crtc */ 2101 outb(crtc_addr, i); 2102 buf[j++] = inb(crtc_addr + 1); 2103 } 2104 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */ 2105 inb(crtc_addr + 6); /* reset flip-flop */ 2106 outb(ATC, i); 2107 buf[j++] = inb(ATC + 1); 2108 } 2109 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */ 2110 outb(GDCIDX, i); 2111 buf[j++] = inb(GDCREG); 2112 } 2113 inb(crtc_addr + 6); /* reset flip-flop */ 2114 outb(ATC, 0x20); /* enable palette */ 2115 2116 crit_exit(); 2117 2118 #if 1 2119 if (vga_get_info(adp, adp->va_mode, &info) == 0) { 2120 if (info.vi_flags & V_INFO_GRAPHICS) { 2121 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */ 2122 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */ 2123 } else { 2124 buf[0] = info.vi_width; /* COLS */ 2125 buf[1] = info.vi_height - 1; /* ROWS */ 2126 } 2127 buf[2] = info.vi_cheight; /* POINTS */ 2128 } else { 2129 /* XXX: shouldn't be happening... */ 2130 printf("vga%d: %s: failed to obtain mode info. (vga_save_state())\n", 2131 adp->va_unit, adp->va_name); 2132 } 2133 #else 2134 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */ 2135 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */ 2136 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */ 2137 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c)); 2138 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d)); 2139 #endif 2140 2141 return 0; 2142 } 2143 2144 /* 2145 * load_state(): 2146 * Set video registers at once. 2147 * NOTE: this function only updates the standard EGA/VGA registers. 2148 * any extra/extended registers of SVGA adapters are not changed. 2149 * 2150 * EGA/VGA 2151 */ 2152 static int 2153 vga_load_state(video_adapter_t *adp, void *p) 2154 { 2155 u_char *buf; 2156 int crtc_addr; 2157 int i; 2158 2159 prologue(adp, V_ADP_STATELOAD, ENODEV); 2160 if (((adp_state_t *)p)->sig != V_STATE_SIG) 2161 return EINVAL; 2162 2163 buf = ((adp_state_t *)p)->regs; 2164 crtc_addr = adp->va_crtc_addr; 2165 2166 #if VGA_DEBUG > 1 2167 dump_buffer(buf, V_MODE_PARAM_SIZE); 2168 #endif 2169 2170 crit_enter(); 2171 2172 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2173 for (i = 0; i < 4; ++i) { /* program sequencer */ 2174 outb(TSIDX, i + 1); 2175 outb(TSREG, buf[i + 5]); 2176 } 2177 outb(MISC, buf[9]); /* set dot-clock */ 2178 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2179 outb(crtc_addr, 0x11); 2180 outb(crtc_addr + 1, inb(crtc_addr + 1) & 0x7F); 2181 for (i = 0; i < 25; ++i) { /* program crtc */ 2182 outb(crtc_addr, i); 2183 outb(crtc_addr + 1, buf[i + 10]); 2184 } 2185 inb(crtc_addr+6); /* reset flip-flop */ 2186 for (i = 0; i < 20; ++i) { /* program attribute ctrl */ 2187 outb(ATC, i); 2188 outb(ATC, buf[i + 35]); 2189 } 2190 for (i = 0; i < 9; ++i) { /* program graph data ctrl */ 2191 outb(GDCIDX, i); 2192 outb(GDCREG, buf[i + 55]); 2193 } 2194 inb(crtc_addr + 6); /* reset flip-flop */ 2195 outb(ATC, 0x20); /* enable palette */ 2196 2197 #if notyet /* a temporary workaround for kernel panic, XXX */ 2198 #ifndef VGA_NO_BIOS 2199 if (adp->va_unit == V_ADP_PRIMARY) { 2200 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */ 2201 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */ 2202 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */ 2203 #if 0 2204 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]); 2205 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]); 2206 #endif 2207 } 2208 #endif /* VGA_NO_BIOS */ 2209 #endif /* notyet */ 2210 2211 crit_exit(); 2212 return 0; 2213 } 2214 2215 /* 2216 * set_origin(): 2217 * Change the origin (window mapping) of the banked frame buffer. 2218 */ 2219 static int 2220 vga_set_origin(video_adapter_t *adp, off_t offset) 2221 { 2222 /* 2223 * The standard video modes do not require window mapping; 2224 * always return error. 2225 */ 2226 return ENODEV; 2227 } 2228 2229 /* 2230 * read_hw_cursor(): 2231 * Read the position of the hardware text cursor. 2232 * 2233 * all adapters 2234 */ 2235 static int 2236 vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 2237 { 2238 u_int16_t off; 2239 2240 if (!vga_init_done) 2241 return ENXIO; 2242 2243 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2244 return ENODEV; 2245 2246 crit_enter(); 2247 outb(adp->va_crtc_addr, 14); 2248 off = inb(adp->va_crtc_addr + 1); 2249 outb(adp->va_crtc_addr, 15); 2250 off = (off << 8) | inb(adp->va_crtc_addr + 1); 2251 crit_exit(); 2252 2253 *row = off / adp->va_info.vi_width; 2254 *col = off % adp->va_info.vi_width; 2255 2256 return 0; 2257 } 2258 2259 /* 2260 * set_hw_cursor(): 2261 * Move the hardware text cursor. If col and row are both -1, 2262 * the cursor won't be shown. 2263 * 2264 * all adapters 2265 */ 2266 static int 2267 vga_set_hw_cursor(video_adapter_t *adp, int col, int row) 2268 { 2269 u_int16_t off; 2270 2271 if (!vga_init_done) 2272 return ENXIO; 2273 2274 if ((col == -1) && (row == -1)) { 2275 off = -1; 2276 } else { 2277 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2278 return ENODEV; 2279 off = row*adp->va_info.vi_width + col; 2280 } 2281 2282 crit_enter(); 2283 outb(adp->va_crtc_addr, 14); 2284 outb(adp->va_crtc_addr + 1, off >> 8); 2285 outb(adp->va_crtc_addr, 15); 2286 outb(adp->va_crtc_addr + 1, off & 0x00ff); 2287 crit_exit(); 2288 2289 return 0; 2290 } 2291 2292 /* 2293 * set_hw_cursor_shape(): 2294 * Change the shape of the hardware text cursor. If the height is 2295 * zero or negative, the cursor won't be shown. 2296 * 2297 * all adapters 2298 */ 2299 static int 2300 vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 2301 int celsize, int blink) 2302 { 2303 if (!vga_init_done) 2304 return ENXIO; 2305 2306 crit_enter(); 2307 switch (adp->va_type) { 2308 case KD_VGA: 2309 case KD_CGA: 2310 case KD_MONO: 2311 case KD_HERCULES: 2312 default: 2313 if (height <= 0) { 2314 /* make the cursor invisible */ 2315 outb(adp->va_crtc_addr, 10); 2316 outb(adp->va_crtc_addr + 1, 32); 2317 outb(adp->va_crtc_addr, 11); 2318 outb(adp->va_crtc_addr + 1, 0); 2319 } else { 2320 outb(adp->va_crtc_addr, 10); 2321 outb(adp->va_crtc_addr + 1, celsize - base - height); 2322 outb(adp->va_crtc_addr, 11); 2323 outb(adp->va_crtc_addr + 1, celsize - base - 1); 2324 } 2325 break; 2326 case KD_EGA: 2327 if (height <= 0) { 2328 /* make the cursor invisible */ 2329 outb(adp->va_crtc_addr, 10); 2330 outb(adp->va_crtc_addr + 1, celsize); 2331 outb(adp->va_crtc_addr, 11); 2332 outb(adp->va_crtc_addr + 1, 0); 2333 } else { 2334 outb(adp->va_crtc_addr, 10); 2335 outb(adp->va_crtc_addr + 1, celsize - base - height); 2336 outb(adp->va_crtc_addr, 11); 2337 outb(adp->va_crtc_addr + 1, celsize - base); 2338 } 2339 break; 2340 } 2341 crit_exit(); 2342 2343 return 0; 2344 } 2345 2346 /* 2347 * blank_display() 2348 * Put the display in power save/power off mode. 2349 * 2350 * all adapters 2351 */ 2352 static int 2353 vga_blank_display(video_adapter_t *adp, int mode) 2354 { 2355 u_char val; 2356 2357 crit_enter(); 2358 switch (adp->va_type) { 2359 case KD_VGA: 2360 switch (mode) { 2361 case V_DISPLAY_SUSPEND: 2362 case V_DISPLAY_STAND_BY: 2363 outb(TSIDX, 0x01); 2364 val = inb(TSREG); 2365 outb(TSIDX, 0x01); 2366 outb(TSREG, val | 0x20); 2367 outb(adp->va_crtc_addr, 0x17); 2368 val = inb(adp->va_crtc_addr + 1); 2369 outb(adp->va_crtc_addr + 1, val & ~0x80); 2370 break; 2371 case V_DISPLAY_BLANK: 2372 outb(TSIDX, 0x01); 2373 val = inb(TSREG); 2374 outb(TSIDX, 0x01); 2375 outb(TSREG, val | 0x20); 2376 break; 2377 case V_DISPLAY_ON: 2378 outb(TSIDX, 0x01); 2379 val = inb(TSREG); 2380 outb(TSIDX, 0x01); 2381 outb(TSREG, val & 0xDF); 2382 outb(adp->va_crtc_addr, 0x17); 2383 val = inb(adp->va_crtc_addr + 1); 2384 outb(adp->va_crtc_addr + 1, val | 0x80); 2385 break; 2386 } 2387 break; 2388 2389 case KD_EGA: 2390 /* no support yet */ 2391 crit_exit(); 2392 return ENODEV; 2393 2394 case KD_CGA: 2395 switch (mode) { 2396 case V_DISPLAY_SUSPEND: 2397 case V_DISPLAY_STAND_BY: 2398 case V_DISPLAY_BLANK: 2399 outb(adp->va_crtc_addr + 4, 0x25); 2400 break; 2401 case V_DISPLAY_ON: 2402 outb(adp->va_crtc_addr + 4, 0x2d); 2403 break; 2404 } 2405 break; 2406 2407 case KD_MONO: 2408 case KD_HERCULES: 2409 switch (mode) { 2410 case V_DISPLAY_SUSPEND: 2411 case V_DISPLAY_STAND_BY: 2412 case V_DISPLAY_BLANK: 2413 outb(adp->va_crtc_addr + 4, 0x21); 2414 break; 2415 case V_DISPLAY_ON: 2416 outb(adp->va_crtc_addr + 4, 0x29); 2417 break; 2418 } 2419 break; 2420 default: 2421 break; 2422 } 2423 crit_exit(); 2424 2425 return 0; 2426 } 2427 2428 /* 2429 * mmap(): 2430 * Mmap frame buffer. 2431 * 2432 * all adapters 2433 */ 2434 static int 2435 vga_mmap_buf(video_adapter_t *adp, vm_offset_t offset, int prot) 2436 { 2437 if (adp->va_info.vi_flags & V_INFO_LINEAR) 2438 return -1; 2439 2440 #if VGA_DEBUG > 0 2441 printf("vga_mmap_buf(): window:0x%x, offset:0x%x\n", 2442 adp->va_info.vi_window, offset); 2443 #endif 2444 2445 /* XXX: is this correct? */ 2446 if (offset > adp->va_window_size - PAGE_SIZE) 2447 return -1; 2448 2449 #ifdef __i386__ 2450 return i386_btop(adp->va_info.vi_window + offset); 2451 #endif 2452 } 2453 2454 #ifndef VGA_NO_MODE_CHANGE 2455 2456 static void 2457 planar_fill(video_adapter_t *adp, int val) 2458 { 2459 int length; 2460 int at; /* position in the frame buffer */ 2461 int l; 2462 2463 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2464 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2465 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2466 outw(GDCIDX, 0xff08); /* bit mask */ 2467 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2468 at = 0; 2469 length = adp->va_line_width*adp->va_info.vi_height; 2470 while (length > 0) { 2471 l = imin(length, adp->va_window_size); 2472 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2473 bzero_io(adp->va_window, l); 2474 length -= l; 2475 at += l; 2476 } 2477 outw(GDCIDX, 0x0000); /* set/reset */ 2478 outw(GDCIDX, 0x0001); /* set/reset enable */ 2479 } 2480 2481 static void 2482 packed_fill(video_adapter_t *adp, int val) 2483 { 2484 int length; 2485 int at; /* position in the frame buffer */ 2486 int l; 2487 2488 at = 0; 2489 length = adp->va_line_width*adp->va_info.vi_height; 2490 while (length > 0) { 2491 l = imin(length, adp->va_window_size); 2492 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2493 fill_io(val, adp->va_window, l); 2494 length -= l; 2495 at += l; 2496 } 2497 } 2498 2499 static void 2500 direct_fill(video_adapter_t *adp, int val) 2501 { 2502 int length; 2503 int at; /* position in the frame buffer */ 2504 int l; 2505 2506 at = 0; 2507 length = adp->va_line_width*adp->va_info.vi_height; 2508 while (length > 0) { 2509 l = imin(length, adp->va_window_size); 2510 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2511 switch (adp->va_info.vi_pixel_size) { 2512 case sizeof(u_int16_t): 2513 fillw_io(val, adp->va_window, l/sizeof(u_int16_t)); 2514 break; 2515 case 3: 2516 /* FIXME */ 2517 break; 2518 case sizeof(u_int32_t): 2519 filll_io(val, adp->va_window, l/sizeof(u_int32_t)); 2520 break; 2521 } 2522 length -= l; 2523 at += l; 2524 } 2525 } 2526 2527 static int 2528 vga_clear(video_adapter_t *adp) 2529 { 2530 switch (adp->va_info.vi_mem_model) { 2531 case V_INFO_MM_TEXT: 2532 /* do nothing? XXX */ 2533 break; 2534 case V_INFO_MM_PLANAR: 2535 planar_fill(adp, 0); 2536 break; 2537 case V_INFO_MM_PACKED: 2538 packed_fill(adp, 0); 2539 break; 2540 case V_INFO_MM_DIRECT: 2541 direct_fill(adp, 0); 2542 break; 2543 } 2544 return 0; 2545 } 2546 2547 #ifdef notyet 2548 static void 2549 planar_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2550 { 2551 int banksize; 2552 int bank; 2553 int pos; 2554 int offset; /* offset within window */ 2555 int bx; 2556 int l; 2557 2558 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2559 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2560 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2561 outw(GDCIDX, 0xff08); /* bit mask */ 2562 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2563 2564 banksize = adp->va_window_size; 2565 bank = -1; 2566 while (cy > 0) { 2567 pos = adp->va_line_width*y + x/8; 2568 if (bank != pos/banksize) { 2569 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2570 bank = pos/banksize; 2571 } 2572 offset = pos%banksize; 2573 bx = (x + cx)/8 - x/8; 2574 if (x % 8) { 2575 outw(GDCIDX, ((0xff00 >> (x % 8)) & 0xff00) | 0x08); 2576 writeb(adp->va_window + offset, 0); 2577 ++offset; 2578 --bx; 2579 if (offset >= banksize) { 2580 offset = 0; 2581 ++bank; /* next bank */ 2582 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2583 } 2584 outw(GDCIDX, 0xff08); /* bit mask */ 2585 } 2586 while (bx > 0) { 2587 l = imin(bx, banksize); 2588 bzero_io(adp->va_window + offset, l); 2589 offset += l; 2590 bx -= l; 2591 if (offset >= banksize) { 2592 offset = 0; 2593 ++bank; /* next bank */ 2594 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2595 } 2596 } 2597 if ((x + cx) % 8) { 2598 outw(GDCIDX, (~(0xff00 >> ((x + cx) % 8)) & 0xff00) | 0x08); 2599 writeb(adp->va_window + offset, 0); 2600 ++offset; 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 ++y; 2609 --cy; 2610 } 2611 2612 outw(GDCIDX, 0xff08); /* bit mask */ 2613 outw(GDCIDX, 0x0000); /* set/reset */ 2614 outw(GDCIDX, 0x0001); /* set/reset enable */ 2615 } 2616 2617 static void 2618 packed_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2619 { 2620 int banksize; 2621 int bank; 2622 int pos; 2623 int offset; /* offset within window */ 2624 int end; 2625 2626 banksize = adp->va_window_size; 2627 bank = -1; 2628 cx *= adp->va_info.vi_pixel_size; 2629 while (cy > 0) { 2630 pos = adp->va_line_width*y + x*adp->va_info.vi_pixel_size; 2631 if (bank != pos/banksize) { 2632 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2633 bank = pos/banksize; 2634 } 2635 offset = pos%banksize; 2636 end = imin(offset + cx, banksize); 2637 fill_io(val, adp->va_window + offset, 2638 (end - offset)/adp->va_info.vi_pixel_size); 2639 /* the line may cross the window boundary */ 2640 if (offset + cx > banksize) { 2641 ++bank; /* next bank */ 2642 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2643 end = offset + cx - banksize; 2644 fill_io(val, adp->va_window, end/adp->va_info.vi_pixel_size); 2645 } 2646 ++y; 2647 --cy; 2648 } 2649 } 2650 2651 static void 2652 direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2653 { 2654 int banksize; 2655 int bank; 2656 int pos; 2657 int offset; /* offset within window */ 2658 int end; 2659 2660 /* 2661 * XXX: the function assumes that banksize is a muliple of 2662 * sizeof(u_int16_t). 2663 */ 2664 banksize = adp->va_window_size; 2665 bank = -1; 2666 cx *= sizeof(u_int16_t); 2667 while (cy > 0) { 2668 pos = adp->va_line_width*y + x*sizeof(u_int16_t); 2669 if (bank != pos/banksize) { 2670 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2671 bank = pos/banksize; 2672 } 2673 offset = pos%banksize; 2674 end = imin(offset + cx, banksize); 2675 fillw_io(val, adp->va_window + offset, 2676 (end - offset)/sizeof(u_int16_t)); 2677 /* the line may cross the window boundary */ 2678 if (offset + cx > banksize) { 2679 ++bank; /* next bank */ 2680 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2681 end = offset + cx - banksize; 2682 fillw_io(val, adp->va_window, end/sizeof(u_int16_t)); 2683 } 2684 ++y; 2685 --cy; 2686 } 2687 } 2688 2689 static void 2690 direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2691 { 2692 int banksize; 2693 int bank; 2694 int pos; 2695 int offset; /* offset within window */ 2696 int end; 2697 int i; 2698 int j; 2699 u_int8_t b[3]; 2700 2701 b[0] = val & 0x0000ff; 2702 b[1] = (val >> 8) & 0x0000ff; 2703 b[2] = (val >> 16) & 0x0000ff; 2704 banksize = adp->va_window_size; 2705 bank = -1; 2706 cx *= 3; 2707 while (cy > 0) { 2708 pos = adp->va_line_width*y + x*3; 2709 if (bank != pos/banksize) { 2710 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2711 bank = pos/banksize; 2712 } 2713 offset = pos%banksize; 2714 end = imin(offset + cx, banksize); 2715 for (i = 0, j = offset; j < end; i = (++i)%3, ++j) { 2716 writeb(adp->va_window + j, b[i]); 2717 } 2718 /* the line may cross the window boundary */ 2719 if (offset + cx >= banksize) { 2720 ++bank; /* next bank */ 2721 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2722 j = 0; 2723 end = offset + cx - banksize; 2724 for (; j < end; i = (++i)%3, ++j) { 2725 writeb(adp->va_window + j, b[i]); 2726 } 2727 } 2728 ++y; 2729 --cy; 2730 } 2731 } 2732 2733 static void 2734 direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2735 { 2736 int banksize; 2737 int bank; 2738 int pos; 2739 int offset; /* offset within window */ 2740 int end; 2741 2742 /* 2743 * XXX: the function assumes that banksize is a muliple of 2744 * sizeof(u_int32_t). 2745 */ 2746 banksize = adp->va_window_size; 2747 bank = -1; 2748 cx *= sizeof(u_int32_t); 2749 while (cy > 0) { 2750 pos = adp->va_line_width*y + x*sizeof(u_int32_t); 2751 if (bank != pos/banksize) { 2752 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2753 bank = pos/banksize; 2754 } 2755 offset = pos%banksize; 2756 end = imin(offset + cx, banksize); 2757 filll_io(val, adp->va_window + offset, 2758 (end - offset)/sizeof(u_int32_t)); 2759 /* the line may cross the window boundary */ 2760 if (offset + cx > banksize) { 2761 ++bank; /* next bank */ 2762 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2763 end = offset + cx - banksize; 2764 filll_io(val, adp->va_window, end/sizeof(u_int32_t)); 2765 } 2766 ++y; 2767 --cy; 2768 } 2769 } 2770 2771 static int 2772 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2773 { 2774 switch (adp->va_info.vi_mem_model) { 2775 case V_INFO_MM_TEXT: 2776 /* do nothing? XXX */ 2777 break; 2778 case V_INFO_MM_PLANAR: 2779 planar_fill_rect(adp, val, x, y, cx, cy); 2780 break; 2781 case V_INFO_MM_PACKED: 2782 packed_fill_rect(adp, val, x, y, cx, cy); 2783 break; 2784 case V_INFO_MM_DIRECT: 2785 switch (adp->va_info.vi_pixel_size) { 2786 case sizeof(u_int16_t): 2787 direct_fill_rect16(adp, val, x, y, cx, cy); 2788 break; 2789 case 3: 2790 direct_fill_rect24(adp, val, x, y, cx, cy); 2791 break; 2792 case sizeof(u_int32_t): 2793 direct_fill_rect32(adp, val, x, y, cx, cy); 2794 break; 2795 } 2796 break; 2797 } 2798 return 0; 2799 } 2800 #else /* !notyet */ 2801 static int 2802 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2803 { 2804 return ENODEV; 2805 } 2806 #endif /* notyet */ 2807 2808 static int 2809 vga_bitblt(video_adapter_t *adp,...) 2810 { 2811 /* FIXME */ 2812 return ENODEV; 2813 } 2814 2815 #endif /* !VGA_NO_MODE_CHANGE */ 2816 2817 static int 2818 get_palette(video_adapter_t *adp, int base, int count, 2819 u_char *red, u_char *green, u_char *blue, u_char *trans) 2820 { 2821 u_char *r; 2822 u_char *g; 2823 u_char *b; 2824 2825 if (count < 0 || base < 0 || count > 256 || base > 256 || 2826 base + count > 256) 2827 return EINVAL; 2828 2829 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2830 g = r + count; 2831 b = g + count; 2832 if (vga_save_palette2(adp, base, count, r, g, b)) { 2833 free(r, M_DEVBUF); 2834 return ENODEV; 2835 } 2836 copyout(r, red, count); 2837 copyout(g, green, count); 2838 copyout(b, blue, count); 2839 if (trans != NULL) { 2840 bzero(r, count); 2841 copyout(r, trans, count); 2842 } 2843 free(r, M_DEVBUF); 2844 2845 return 0; 2846 } 2847 2848 static int 2849 set_palette(video_adapter_t *adp, int base, int count, 2850 u_char *red, u_char *green, u_char *blue, u_char *trans) 2851 { 2852 u_char *r; 2853 u_char *g; 2854 u_char *b; 2855 int err; 2856 2857 if (count < 0 || base < 0 || count > 256 || base > 256 || 2858 base + count > 256) 2859 return EINVAL; 2860 2861 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2862 g = r + count; 2863 b = g + count; 2864 err = copyin(red, r, count); 2865 if (!err) 2866 err = copyin(green, g, count); 2867 if (!err) 2868 err = copyin(blue, b, count); 2869 if (!err) 2870 err = vga_load_palette2(adp, base, count, r, g, b); 2871 free(r, M_DEVBUF); 2872 2873 return (err ? ENODEV : 0); 2874 } 2875 2876 static int 2877 vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 2878 { 2879 switch (cmd) { 2880 case FBIO_GETWINORG: /* get frame buffer window origin */ 2881 *(u_int *)arg = 0; 2882 return 0; 2883 2884 case FBIO_SETWINORG: /* set frame buffer window origin */ 2885 return ENODEV; 2886 2887 case FBIO_SETDISPSTART: /* set display start address */ 2888 return (set_display_start(adp, 2889 ((video_display_start_t *)arg)->x, 2890 ((video_display_start_t *)arg)->y) 2891 ? ENODEV : 0); 2892 2893 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */ 2894 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0); 2895 2896 case FBIO_GETPALETTE: /* get color palette */ 2897 return get_palette(adp, ((video_color_palette_t *)arg)->index, 2898 ((video_color_palette_t *)arg)->count, 2899 ((video_color_palette_t *)arg)->red, 2900 ((video_color_palette_t *)arg)->green, 2901 ((video_color_palette_t *)arg)->blue, 2902 ((video_color_palette_t *)arg)->transparent); 2903 2904 case FBIO_SETPALETTE: /* set color palette */ 2905 return set_palette(adp, ((video_color_palette_t *)arg)->index, 2906 ((video_color_palette_t *)arg)->count, 2907 ((video_color_palette_t *)arg)->red, 2908 ((video_color_palette_t *)arg)->green, 2909 ((video_color_palette_t *)arg)->blue, 2910 ((video_color_palette_t *)arg)->transparent); 2911 2912 case FBIOGTYPE: /* get frame buffer type info. */ 2913 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type); 2914 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height; 2915 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width; 2916 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth; 2917 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8)) 2918 ((struct fbtype *)arg)->fb_cmsize = 0; 2919 else 2920 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth; 2921 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size; 2922 return 0; 2923 2924 case FBIOGETCMAP: /* get color palette */ 2925 return get_palette(adp, ((struct fbcmap *)arg)->index, 2926 ((struct fbcmap *)arg)->count, 2927 ((struct fbcmap *)arg)->red, 2928 ((struct fbcmap *)arg)->green, 2929 ((struct fbcmap *)arg)->blue, NULL); 2930 2931 case FBIOPUTCMAP: /* set color palette */ 2932 return set_palette(adp, ((struct fbcmap *)arg)->index, 2933 ((struct fbcmap *)arg)->count, 2934 ((struct fbcmap *)arg)->red, 2935 ((struct fbcmap *)arg)->green, 2936 ((struct fbcmap *)arg)->blue, NULL); 2937 2938 default: 2939 return fb_commonioctl(adp, cmd, arg); 2940 } 2941 } 2942 2943 static void 2944 dump_buffer(u_char *buf, size_t len) 2945 { 2946 int i; 2947 2948 for(i = 0; i < len;) { 2949 printf("%02x ", buf[i]); 2950 if ((++i % 16) == 0) 2951 printf("\n"); 2952 } 2953 } 2954 2955 /* 2956 * diag(): 2957 * Print some information about the video adapter and video modes, 2958 * with requested level of details. 2959 * 2960 * all adapters 2961 */ 2962 static int 2963 vga_diag(video_adapter_t *adp, int level) 2964 { 2965 u_char *mp; 2966 #if FB_DEBUG > 1 2967 video_info_t info; 2968 int i; 2969 #endif 2970 2971 if (!vga_init_done) 2972 return ENXIO; 2973 2974 #if FB_DEBUG > 1 2975 #ifndef VGA_NO_BIOS 2976 printf("vga: RTC equip. code:0x%02x, DCC code:0x%02x\n", 2977 rtcin(RTC_EQUIPMENT), readb(BIOS_PADDRTOVADDR(0x488))); 2978 printf("vga: CRTC:0x%x, video option:0x%02x, ", 2979 readw(BIOS_PADDRTOVADDR(0x463)), 2980 readb(BIOS_PADDRTOVADDR(0x487))); 2981 printf("rows:%d, cols:%d, font height:%d\n", 2982 readb(BIOS_PADDRTOVADDR(0x44a)), 2983 readb(BIOS_PADDRTOVADDR(0x484)) + 1, 2984 readb(BIOS_PADDRTOVADDR(0x485))); 2985 #endif /* VGA_NO_BIOS */ 2986 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 2987 printf("vga: param table EGA/VGA:%p", video_mode_ptr); 2988 printf(", CGA/MDA:%p\n", video_mode_ptr2); 2989 printf("vga: rows_offset:%d\n", rows_offset); 2990 #endif 2991 #endif /* FB_DEBUG > 1 */ 2992 2993 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level); 2994 2995 #if FB_DEBUG > 1 2996 if (adp->va_flags & V_ADP_MODECHANGE) { 2997 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 2998 if (bios_vmode[i].vi_mode == NA) 2999 continue; 3000 if (get_mode_param(bios_vmode[i].vi_mode) == NULL) 3001 continue; 3002 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level); 3003 } 3004 } else { 3005 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */ 3006 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level); 3007 } 3008 #endif /* FB_DEBUG > 1 */ 3009 3010 if ((adp->va_type != KD_EGA) && (adp->va_type != KD_VGA)) 3011 return 0; 3012 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 3013 if (video_mode_ptr == NULL) 3014 printf("vga%d: %s: WARNING: video mode switching is not " 3015 "fully supported on this adapter\n", 3016 adp->va_unit, adp->va_name); 3017 #endif 3018 if (level <= 0) 3019 return 0; 3020 3021 if (adp->va_type == KD_VGA) { 3022 printf("VGA parameters upon power-up\n"); 3023 dump_buffer(adpstate.regs, sizeof(adpstate.regs)); 3024 printf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode); 3025 dump_buffer(adpstate2.regs, sizeof(adpstate2.regs)); 3026 } 3027 3028 mp = get_mode_param(adp->va_initial_mode); 3029 if (mp == NULL) /* this shouldn't be happening */ 3030 return 0; 3031 printf("EGA/VGA parameters to be used for mode %d\n", adp->va_initial_mode); 3032 dump_buffer(mp, V_MODE_PARAM_SIZE); 3033 3034 return 0; 3035 } 3036