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 * $Id: vga.c,v 1.1 1999/06/22 14:13:24 yokota Exp $ 30 */ 31 32 #include "vga.h" 33 #include "opt_vga.h" 34 #include "opt_fb.h" 35 #include "opt_syscons.h" /* should be removed in the future, XXX */ 36 37 #if NVGA > 0 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/kernel.h> 42 #include <sys/conf.h> 43 #include <sys/proc.h> 44 #include <sys/fcntl.h> 45 #include <sys/malloc.h> 46 #include <sys/fbio.h> 47 48 #include <vm/vm.h> 49 #include <vm/vm_param.h> 50 #include <vm/pmap.h> 51 52 #include <machine/md_var.h> 53 #include <machine/pc/bios.h> 54 55 #include <dev/fb/fbreg.h> 56 #include <dev/fb/vgareg.h> 57 58 #include <isa/isareg.h> 59 60 #ifndef VGA_DEBUG 61 #define VGA_DEBUG 0 62 #endif 63 64 int 65 vga_probe_unit(int unit, video_adapter_t *buf, int flags) 66 { 67 video_adapter_t *adp; 68 video_switch_t *sw; 69 int error; 70 71 sw = vid_get_switch(VGA_DRIVER_NAME); 72 if (sw == NULL) 73 return 0; 74 error = (*sw->probe)(unit, &adp, NULL, flags); 75 if (error) 76 return error; 77 bcopy(adp, buf, sizeof(*buf)); 78 return 0; 79 } 80 81 int 82 vga_attach_unit(int unit, vga_softc_t *sc, int flags) 83 { 84 video_switch_t *sw; 85 int error; 86 87 sw = vid_get_switch(VGA_DRIVER_NAME); 88 if (sw == NULL) 89 return ENXIO; 90 91 error = (*sw->probe)(unit, &sc->adp, NULL, flags); 92 if (error) 93 return error; 94 return (*sw->init)(unit, sc->adp, flags); 95 } 96 97 /* cdev driver functions */ 98 99 #ifdef FB_INSTALL_CDEV 100 101 int 102 vga_open(dev_t dev, vga_softc_t *sc, int flag, int mode, struct proc *p) 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, p); 110 } 111 112 int 113 vga_close(dev_t dev, vga_softc_t *sc, int flag, int mode, struct proc *p) 114 { 115 return genfbclose(&sc->gensc, sc->adp, flag, mode, p); 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 proc *p) 133 { 134 return genfbioctl(&sc->gensc, sc->adp, cmd, arg, flag, p); 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 /* architecture dependent option */ 168 #ifdef __alpha__ 169 #define VGA_NO_BIOS 1 170 #endif 171 172 /* this should really be in `rtc.h' */ 173 #define RTC_EQUIPMENT 0x14 174 175 /* various sizes */ 176 #define V_MODE_MAP_SIZE (M_VGA_CG320 + 1) 177 #define V_MODE_PARAM_SIZE 64 178 179 /* video adapter state buffer */ 180 struct adp_state { 181 int sig; 182 #define V_STATE_SIG 0x736f6962 183 u_char regs[V_MODE_PARAM_SIZE]; 184 }; 185 typedef struct adp_state adp_state_t; 186 187 /* video adapter information */ 188 #define DCC_MONO 0 189 #define DCC_CGA40 1 190 #define DCC_CGA80 2 191 #define DCC_EGAMONO 3 192 #define DCC_EGA40 4 193 #define DCC_EGA80 5 194 195 /* 196 * NOTE: `va_window' should have a virtual address, but is initialized 197 * with a physical address in the following table, as verify_adapter() 198 * will perform address conversion at run-time. 199 */ 200 static video_adapter_t adapter_init_value[] = { 201 /* DCC_MONO */ 202 { 0, KD_MONO, "mda", 0, 0, 0, IO_MDA, IO_MDASIZE, MONO_CRTC, 203 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 204 0, 0, 0, 0, 7, 0, }, 205 /* DCC_CGA40 */ 206 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 207 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 208 0, 0, 0, 0, 3, 0, }, 209 /* DCC_CGA80 */ 210 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 211 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 212 0, 0, 0, 0, 3, 0, }, 213 /* DCC_EGAMONO */ 214 { 0, KD_EGA, "ega", 0, 0, 0, IO_MDA, 48, MONO_CRTC, 215 EGA_BUF_BASE, EGA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 216 0, 0, 0, 0, 7, 0, }, 217 /* DCC_EGA40 */ 218 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 219 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 220 0, 0, 0, 0, 3, 0, }, 221 /* DCC_EGA80 */ 222 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 223 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 224 0, 0, 0, 0, 3, 0, }, 225 }; 226 227 static video_adapter_t biosadapter[2]; 228 static int biosadapters = 0; 229 230 /* video driver declarations */ 231 static int vga_configure(int flags); 232 int (*vga_sub_configure)(int flags); 233 #if 0 234 static int vga_nop(void); 235 #endif 236 static int vga_error(void); 237 static vi_probe_t vga_probe; 238 static vi_init_t vga_init; 239 static vi_get_info_t vga_get_info; 240 static vi_query_mode_t vga_query_mode; 241 static vi_set_mode_t vga_set_mode; 242 static vi_save_font_t vga_save_font; 243 static vi_load_font_t vga_load_font; 244 static vi_show_font_t vga_show_font; 245 static vi_save_palette_t vga_save_palette; 246 static vi_load_palette_t vga_load_palette; 247 static vi_set_border_t vga_set_border; 248 static vi_save_state_t vga_save_state; 249 static vi_load_state_t vga_load_state; 250 static vi_set_win_org_t vga_set_origin; 251 static vi_read_hw_cursor_t vga_read_hw_cursor; 252 static vi_set_hw_cursor_t vga_set_hw_cursor; 253 static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape; 254 static vi_blank_display_t vga_blank_display; 255 static vi_mmap_t vga_mmap_buf; 256 static vi_ioctl_t vga_dev_ioctl; 257 #ifndef VGA_NO_MODE_CHANGE 258 static vi_clear_t vga_clear; 259 static vi_fill_rect_t vga_fill_rect; 260 static vi_bitblt_t vga_bitblt; 261 #else /* VGA_NO_MODE_CHANGE */ 262 #define vga_clear (vi_clear_t *)vga_error 263 #define vga_fill_rect (vi_fill_rect_t *)vga_error 264 #define vga_bitblt (vi_bitblt_t *)vga_error 265 #endif 266 static vi_diag_t vga_diag; 267 268 static video_switch_t vgavidsw = { 269 vga_probe, 270 vga_init, 271 vga_get_info, 272 vga_query_mode, 273 vga_set_mode, 274 vga_save_font, 275 vga_load_font, 276 vga_show_font, 277 vga_save_palette, 278 vga_load_palette, 279 vga_set_border, 280 vga_save_state, 281 vga_load_state, 282 vga_set_origin, 283 vga_read_hw_cursor, 284 vga_set_hw_cursor, 285 vga_set_hw_cursor_shape, 286 vga_blank_display, 287 vga_mmap_buf, 288 vga_dev_ioctl, 289 vga_clear, 290 vga_fill_rect, 291 vga_bitblt, 292 vga_error, 293 vga_error, 294 vga_diag, 295 }; 296 297 VIDEO_DRIVER(mda, vgavidsw, NULL); 298 VIDEO_DRIVER(cga, vgavidsw, NULL); 299 VIDEO_DRIVER(ega, vgavidsw, NULL); 300 VIDEO_DRIVER(vga, vgavidsw, vga_configure); 301 302 /* VGA BIOS standard video modes */ 303 #define EOT (-1) 304 #define NA (-2) 305 306 static video_info_t bios_vmode[] = { 307 /* CGA */ 308 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1, 309 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 310 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1, 311 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 312 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1, 313 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 314 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1, 315 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 316 /* EGA */ 317 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1, 318 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 319 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1, 320 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 321 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1, 322 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 323 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1, 324 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 325 /* VGA */ 326 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1, 327 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 328 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1, 329 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 330 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1, 331 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 332 /* MDA */ 333 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1, 334 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 335 /* EGA */ 336 { M_ENH_B80x43, 0, 80, 43, 8, 8, 2, 1, 337 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 338 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1, 339 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 340 /* VGA */ 341 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1, 342 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 343 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1, 344 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 345 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1, 346 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 347 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1, 348 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 349 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1, 350 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 351 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1, 352 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 353 354 #ifndef VGA_NO_MODE_CHANGE 355 356 #ifdef VGA_WIDTH90 357 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1, 358 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 359 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1, 360 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 361 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1, 362 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 363 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1, 364 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 365 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1, 366 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 367 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1, 368 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 369 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1, 370 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 371 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1, 372 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 373 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1, 374 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 375 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1, 376 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 377 #endif /* VGA_WIDTH90 */ 378 379 /* CGA */ 380 { M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 381 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 382 { M_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 383 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 384 { M_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1, 385 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 386 /* EGA */ 387 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4, 388 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 389 V_INFO_MM_PLANAR }, 390 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4, 391 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 392 V_INFO_MM_PLANAR }, 393 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 394 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 , 395 V_INFO_MM_PLANAR }, 396 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 397 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 398 V_INFO_MM_PLANAR }, 399 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2, 400 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 401 V_INFO_MM_PLANAR }, 402 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 403 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 404 V_INFO_MM_PLANAR }, 405 /* VGA */ 406 { M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 407 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 408 V_INFO_MM_PLANAR }, 409 { M_CG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 410 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 411 V_INFO_MM_PLANAR }, 412 { M_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1, 413 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 414 V_INFO_MM_PACKED, 1 }, 415 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 1, 416 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 417 V_INFO_MM_PACKED, 1 }, 418 #endif /* VGA_NO_MODE_CHANGE */ 419 420 { EOT }, 421 }; 422 423 static int vga_init_done = FALSE; 424 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 425 static u_char *video_mode_ptr = NULL; /* EGA/VGA */ 426 static u_char *video_mode_ptr2 = NULL; /* CGA/MDA */ 427 #endif 428 static u_char *mode_map[V_MODE_MAP_SIZE]; 429 static adp_state_t adpstate; 430 static adp_state_t adpstate2; 431 static int rows_offset = 1; 432 433 /* local macros and functions */ 434 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 435 436 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 437 static void map_mode_table(u_char *map[], u_char *table, int max); 438 #endif 439 static void clear_mode_map(video_adapter_t *adp, u_char *map[], int max, 440 int color); 441 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 442 static int map_mode_num(int mode); 443 #endif 444 static int map_gen_mode_num(int type, int color, int mode); 445 static int map_bios_mode_num(int type, int color, int bios_mode); 446 static u_char *get_mode_param(int mode); 447 #ifndef VGA_NO_BIOS 448 static void fill_adapter_param(int code, video_adapter_t *adp); 449 #endif 450 static int verify_adapter(video_adapter_t *adp); 451 static void update_adapter_info(video_adapter_t *adp, video_info_t *info); 452 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 453 #define COMP_IDENTICAL 0 454 #define COMP_SIMILAR 1 455 #define COMP_DIFFERENT 2 456 static int comp_adpregs(u_char *buf1, u_char *buf2); 457 #endif 458 static int probe_adapters(void); 459 static int set_line_length(video_adapter_t *adp, int pixel); 460 static int set_display_start(video_adapter_t *adp, int x, int y); 461 static void filll_io(int val, vm_offset_t d, size_t size); 462 463 #ifndef VGA_NO_MODE_CHANGE 464 #ifdef VGA_WIDTH90 465 static void set_width90(adp_state_t *params); 466 #endif 467 #endif /* !VGA_NO_MODE_CHANGE */ 468 469 #ifndef VGA_NO_FONT_LOADING 470 #define PARAM_BUFSIZE 6 471 static void set_font_mode(video_adapter_t *adp, u_char *buf); 472 static void set_normal_mode(video_adapter_t *adp, u_char *buf); 473 #endif 474 475 #ifndef VGA_NO_MODE_CHANGE 476 static void planar_fill(video_adapter_t *adp, int val); 477 static void packed_fill(video_adapter_t *adp, int val); 478 static void direct_fill(video_adapter_t *adp, int val); 479 #ifdef notyet 480 static void planar_fill_rect(video_adapter_t *adp, int val, int x, int y, 481 int cx, int cy); 482 static void packed_fill_rect(video_adapter_t *adp, int val, int x, int y, 483 int cx, int cy); 484 static void direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, 485 int cx, int cy); 486 static void direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, 487 int cx, int cy); 488 static void direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, 489 int cx, int cy); 490 #endif /* notyet */ 491 #endif /* !VGA_NO_MODE_CHANGE */ 492 493 static void dump_buffer(u_char *buf, size_t len); 494 495 #define ISMAPPED(pa, width) \ 496 (((pa) <= (u_long)0x1000 - (width)) \ 497 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width))) 498 499 #define prologue(adp, flag, err) \ 500 if (!vga_init_done || !((adp)->va_flags & (flag))) \ 501 return (err) 502 503 /* a backdoor for the console driver */ 504 static int 505 vga_configure(int flags) 506 { 507 int i; 508 509 probe_adapters(); 510 for (i = 0; i < biosadapters; ++i) { 511 if (!probe_done(&biosadapter[i])) 512 continue; 513 biosadapter[i].va_flags |= V_ADP_INITIALIZED; 514 if (!config_done(&biosadapter[i])) { 515 if (vid_register(&biosadapter[i]) < 0) 516 continue; 517 biosadapter[i].va_flags |= V_ADP_REGISTERED; 518 } 519 } 520 if (vga_sub_configure != NULL) 521 (*vga_sub_configure)(flags); 522 523 return biosadapters; 524 } 525 526 /* local subroutines */ 527 528 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 529 /* construct the mode parameter map */ 530 static void 531 map_mode_table(u_char *map[], u_char *table, int max) 532 { 533 int i; 534 535 for(i = 0; i < max; ++i) 536 map[i] = table + i*V_MODE_PARAM_SIZE; 537 for(; i < V_MODE_MAP_SIZE; ++i) 538 map[i] = NULL; 539 } 540 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 541 542 static void 543 clear_mode_map(video_adapter_t *adp, u_char *map[], int max, int color) 544 { 545 video_info_t info; 546 int i; 547 548 /* 549 * NOTE: we don't touch `bios_vmode[]' because it is shared 550 * by all adapters. 551 */ 552 for(i = 0; i < max; ++i) { 553 if (vga_get_info(adp, i, &info)) 554 continue; 555 if ((info.vi_flags & V_INFO_COLOR) != color) 556 map[i] = NULL; 557 } 558 } 559 560 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 561 /* map the non-standard video mode to a known mode number */ 562 static int 563 map_mode_num(int mode) 564 { 565 static struct { 566 int from; 567 int to; 568 } mode_map[] = { 569 { M_ENH_B80x43, M_ENH_B80x25 }, 570 { M_ENH_C80x43, M_ENH_C80x25 }, 571 { M_VGA_M80x30, M_VGA_M80x25 }, 572 { M_VGA_C80x30, M_VGA_C80x25 }, 573 { M_VGA_M80x50, M_VGA_M80x25 }, 574 { M_VGA_C80x50, M_VGA_C80x25 }, 575 { M_VGA_M80x60, M_VGA_M80x25 }, 576 { M_VGA_C80x60, M_VGA_C80x25 }, 577 #ifdef VGA_WIDTH90 578 { M_VGA_M90x25, M_VGA_M80x25 }, 579 { M_VGA_C90x25, M_VGA_C80x25 }, 580 { M_VGA_M90x30, M_VGA_M80x25 }, 581 { M_VGA_C90x30, M_VGA_C80x25 }, 582 { M_VGA_M90x43, M_ENH_B80x25 }, 583 { M_VGA_C90x43, M_ENH_C80x25 }, 584 { M_VGA_M90x50, M_VGA_M80x25 }, 585 { M_VGA_C90x50, M_VGA_C80x25 }, 586 { M_VGA_M90x60, M_VGA_M80x25 }, 587 { M_VGA_C90x60, M_VGA_C80x25 }, 588 #endif 589 { M_VGA_MODEX, M_VGA_CG320 }, 590 }; 591 int i; 592 593 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 594 if (mode_map[i].from == mode) 595 return mode_map[i].to; 596 } 597 return mode; 598 } 599 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 600 601 /* map a generic video mode to a known mode number */ 602 static int 603 map_gen_mode_num(int type, int color, int mode) 604 { 605 static struct { 606 int from; 607 int to_color; 608 int to_mono; 609 } mode_map[] = { 610 { M_TEXT_80x30, M_VGA_C80x30, M_VGA_M80x30, }, 611 { M_TEXT_80x43, M_ENH_C80x43, M_ENH_B80x43, }, 612 { M_TEXT_80x50, M_VGA_C80x50, M_VGA_M80x50, }, 613 { M_TEXT_80x60, M_VGA_C80x60, M_VGA_M80x60, }, 614 }; 615 int i; 616 617 if (mode == M_TEXT_80x25) { 618 switch (type) { 619 620 case KD_VGA: 621 if (color) 622 return M_VGA_C80x25; 623 else 624 return M_VGA_M80x25; 625 break; 626 627 case KD_EGA: 628 if (color) 629 return M_ENH_C80x25; 630 else 631 return M_EGAMONO80x25; 632 break; 633 634 case KD_CGA: 635 return M_C80x25; 636 637 case KD_MONO: 638 case KD_HERCULES: 639 return M_EGAMONO80x25; /* XXX: this name is confusing */ 640 641 default: 642 return -1; 643 } 644 } 645 646 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 647 if (mode_map[i].from == mode) 648 return ((color) ? mode_map[i].to_color : mode_map[i].to_mono); 649 } 650 return mode; 651 } 652 653 /* turn the BIOS video number into our video mode number */ 654 static int 655 map_bios_mode_num(int type, int color, int bios_mode) 656 { 657 static int cga_modes[7] = { 658 M_B40x25, M_C40x25, /* 0, 1 */ 659 M_B80x25, M_C80x25, /* 2, 3 */ 660 M_BG320, M_CG320, 661 M_BG640, 662 }; 663 static int ega_modes[17] = { 664 M_ENH_B40x25, M_ENH_C40x25, /* 0, 1 */ 665 M_ENH_B80x25, M_ENH_C80x25, /* 2, 3 */ 666 M_BG320, M_CG320, 667 M_BG640, 668 M_EGAMONO80x25, /* 7 */ 669 8, 9, 10, 11, 12, 670 M_CG320_D, 671 M_CG640_E, 672 M_ENHMONOAPA2, /* XXX: video momery > 64K */ 673 M_ENH_CG640, /* XXX: video momery > 64K */ 674 }; 675 static int vga_modes[20] = { 676 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */ 677 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */ 678 M_BG320, M_CG320, 679 M_BG640, 680 M_VGA_M80x25, /* 7 */ 681 8, 9, 10, 11, 12, 682 M_CG320_D, 683 M_CG640_E, 684 M_ENHMONOAPA2, 685 M_ENH_CG640, 686 M_BG640x480, M_CG640x480, 687 M_VGA_CG320, 688 }; 689 690 switch (type) { 691 692 case KD_VGA: 693 if (bios_mode < sizeof(vga_modes)/sizeof(vga_modes[0])) 694 return vga_modes[bios_mode]; 695 else if (color) 696 return M_VGA_C80x25; 697 else 698 return M_VGA_M80x25; 699 break; 700 701 case KD_EGA: 702 if (bios_mode < sizeof(ega_modes)/sizeof(ega_modes[0])) 703 return ega_modes[bios_mode]; 704 else if (color) 705 return M_ENH_C80x25; 706 else 707 return M_EGAMONO80x25; 708 break; 709 710 case KD_CGA: 711 if (bios_mode < sizeof(cga_modes)/sizeof(cga_modes[0])) 712 return cga_modes[bios_mode]; 713 else 714 return M_C80x25; 715 break; 716 717 case KD_MONO: 718 case KD_HERCULES: 719 return M_EGAMONO80x25; /* XXX: this name is confusing */ 720 721 default: 722 break; 723 } 724 return -1; 725 } 726 727 /* look up a parameter table entry */ 728 static u_char 729 *get_mode_param(int mode) 730 { 731 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 732 if (mode >= V_MODE_MAP_SIZE) 733 mode = map_mode_num(mode); 734 #endif 735 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE)) 736 return mode_map[mode]; 737 else 738 return NULL; 739 } 740 741 #ifndef VGA_NO_BIOS 742 static void 743 fill_adapter_param(int code, video_adapter_t *adp) 744 { 745 static struct { 746 int primary; 747 int secondary; 748 } dcc[] = { 749 { DCC_MONO, DCC_EGA40 /* CGA monitor */ }, 750 { DCC_MONO, DCC_EGA80 /* CGA monitor */ }, 751 { DCC_MONO, DCC_EGA80 /* CGA emulation */ }, 752 { DCC_MONO, DCC_EGA80 }, 753 { DCC_CGA40, DCC_EGAMONO }, 754 { DCC_CGA80, DCC_EGAMONO }, 755 { DCC_EGA40 /* CGA monitor */, DCC_MONO}, 756 { DCC_EGA80 /* CGA monitor */, DCC_MONO}, 757 { DCC_EGA80 /* CGA emulation */,DCC_MONO }, 758 { DCC_EGA80, DCC_MONO }, 759 { DCC_EGAMONO, DCC_CGA40 }, 760 { DCC_EGAMONO, DCC_CGA40 }, 761 }; 762 763 if ((code < 0) || (code >= sizeof(dcc)/sizeof(dcc[0]))) { 764 adp[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 765 adp[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 766 } else { 767 adp[V_ADP_PRIMARY] = adapter_init_value[dcc[code].primary]; 768 adp[V_ADP_SECONDARY] = adapter_init_value[dcc[code].secondary]; 769 } 770 } 771 #endif /* VGA_NO_BIOS */ 772 773 static int 774 verify_adapter(video_adapter_t *adp) 775 { 776 vm_offset_t buf; 777 u_int16_t v; 778 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 779 u_int32_t p; 780 #endif 781 782 buf = BIOS_PADDRTOVADDR(adp->va_window); 783 v = readw(buf); 784 writew(buf, 0xA55A); 785 if (readw(buf) != 0xA55A) 786 return ENXIO; 787 writew(buf, v); 788 789 switch (adp->va_type) { 790 791 case KD_EGA: 792 outb(adp->va_crtc_addr, 7); 793 if (inb(adp->va_crtc_addr) == 7) { 794 adp->va_type = KD_VGA; 795 adp->va_name = "vga"; 796 adp->va_flags |= V_ADP_STATESAVE | V_ADP_PALETTE; 797 } 798 adp->va_flags |= V_ADP_STATELOAD | V_ADP_BORDER; 799 /* the color adapter may be in the 40x25 mode... XXX */ 800 801 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 802 /* get the BIOS video mode pointer */ 803 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8); 804 p = BIOS_SADDRTOLADDR(p); 805 if (ISMAPPED(p, sizeof(u_int32_t))) { 806 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p); 807 p = BIOS_SADDRTOLADDR(p); 808 if (ISMAPPED(p, V_MODE_PARAM_SIZE)) 809 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p); 810 } 811 #endif 812 break; 813 814 case KD_CGA: 815 adp->va_flags |= V_ADP_COLOR | V_ADP_BORDER; 816 /* may be in the 40x25 mode... XXX */ 817 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 818 /* get the BIOS video mode pointer */ 819 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 820 p = BIOS_SADDRTOLADDR(p); 821 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 822 #endif 823 break; 824 825 case KD_MONO: 826 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 827 /* get the BIOS video mode pointer */ 828 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 829 p = BIOS_SADDRTOLADDR(p); 830 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 831 #endif 832 break; 833 } 834 835 return 0; 836 } 837 838 static void 839 update_adapter_info(video_adapter_t *adp, video_info_t *info) 840 { 841 adp->va_flags &= ~V_ADP_COLOR; 842 adp->va_flags |= 843 (info->vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; 844 adp->va_crtc_addr = 845 (adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; 846 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window); 847 adp->va_window_size = info->vi_window_size; 848 adp->va_window_gran = info->vi_window_gran; 849 adp->va_window_orig = 0; 850 /* XXX */ 851 adp->va_buffer = info->vi_buffer; 852 adp->va_buffer_size = info->vi_buffer_size; 853 if (info->vi_flags & V_INFO_GRAPHICS) { 854 switch (info->vi_depth/info->vi_planes) { 855 case 1: 856 adp->va_line_width = info->vi_width/8; 857 break; 858 case 2: 859 adp->va_line_width = info->vi_width/4; 860 break; 861 case 4: 862 adp->va_line_width = info->vi_width/2; 863 break; 864 case 8: 865 default: /* shouldn't happen */ 866 adp->va_line_width = info->vi_width; 867 break; 868 } 869 } else { 870 adp->va_line_width = info->vi_width; 871 } 872 adp->va_disp_start.x = 0; 873 adp->va_disp_start.y = 0; 874 bcopy(info, &adp->va_info, sizeof(adp->va_info)); 875 } 876 877 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 878 /* compare two parameter table entries */ 879 static int 880 comp_adpregs(u_char *buf1, u_char *buf2) 881 { 882 static struct { 883 u_char mask; 884 } params[V_MODE_PARAM_SIZE] = { 885 {0xff}, {0x00}, {0xff}, /* COLS}, ROWS}, POINTS */ 886 {0x00}, {0x00}, /* page length */ 887 {0xfe}, {0xff}, {0xff}, {0xff}, /* sequencer registers */ 888 {0xf3}, /* misc register */ 889 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, /* CRTC */ 890 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, 891 {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, 892 {0x00}, {0xff}, {0x7f}, {0xff}, {0xff}, 893 {0x7f}, {0xff}, {0xff}, {0xef}, {0xff}, 894 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* attribute controller regs */ 895 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 896 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 897 {0xff}, {0xff}, {0xff}, {0xff}, {0xf0}, 898 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* GDC register */ 899 {0xff}, {0xff}, {0xff}, {0xff}, 900 }; 901 int identical = TRUE; 902 int i; 903 904 if ((buf1 == NULL) || (buf2 == NULL)) 905 return COMP_DIFFERENT; 906 907 for (i = 0; i < sizeof(params)/sizeof(params[0]); ++i) { 908 if (params[i].mask == 0) /* don't care */ 909 continue; 910 if ((buf1[i] & params[i].mask) != (buf2[i] & params[i].mask)) 911 return COMP_DIFFERENT; 912 if (buf1[i] != buf2[i]) 913 identical = FALSE; 914 } 915 return (identical) ? COMP_IDENTICAL : COMP_SIMILAR; 916 } 917 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 918 919 /* probe video adapters and return the number of detected adapters */ 920 static int 921 probe_adapters(void) 922 { 923 video_adapter_t *adp; 924 video_info_t info; 925 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 926 u_char *mp; 927 #endif 928 int i; 929 930 /* do this test only once */ 931 if (vga_init_done) 932 return biosadapters; 933 vga_init_done = TRUE; 934 935 /* 936 * Locate display adapters. 937 * The AT architecture supports upto two adapters. `syscons' allows 938 * the following combinations of adapters: 939 * 1) MDA + CGA 940 * 2) MDA + EGA/VGA color 941 * 3) CGA + EGA/VGA mono 942 * Note that `syscons' doesn't bother with MCGA as it is only 943 * avaiable for low end PS/2 models which has 80286 or earlier CPUs, 944 * thus, they are not running FreeBSD! 945 * When there are two adapaters in the system, one becomes `primary' 946 * and the other `secondary'. The EGA adapter has a set of DIP 947 * switches on board for this information and the EGA BIOS copies 948 * it in the BIOS data area BIOSDATA_VIDEOSWITCH (40:88). 949 * The VGA BIOS has more sophisticated mechanism and has this 950 * information in BIOSDATA_DCCINDEX (40:8a), but it also maintains 951 * compatibility with the EGA BIOS by updating BIOSDATA_VIDEOSWITCH. 952 */ 953 954 /* 955 * Check rtc and BIOS data area. 956 * XXX: we don't use BIOSDATA_EQUIPMENT, since it is not a dead 957 * copy of RTC_EQUIPMENT. Bits 4 and 5 of ETC_EQUIPMENT are 958 * zeros for EGA and VGA. However, the EGA/VGA BIOS sets 959 * these bits in BIOSDATA_EQUIPMENT according to the monitor 960 * type detected. 961 */ 962 #ifndef VGA_NO_BIOS 963 switch ((rtcin(RTC_EQUIPMENT) >> 4) & 3) { /* bit 4 and 5 */ 964 case 0: 965 /* EGA/VGA */ 966 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 967 biosadapter); 968 break; 969 case 1: 970 /* CGA 40x25 */ 971 /* FIXME: switch to the 80x25 mode? XXX */ 972 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA40]; 973 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 974 break; 975 case 2: 976 /* CGA 80x25 */ 977 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA80]; 978 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 979 break; 980 case 3: 981 /* MDA */ 982 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 983 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 984 break; 985 } 986 #else 987 /* assume EGA/VGA? XXX */ 988 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_EGA80]; 989 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 990 #endif /* VGA_NO_BIOS */ 991 992 biosadapters = 0; 993 if (verify_adapter(&biosadapter[V_ADP_SECONDARY]) == 0) { 994 ++biosadapters; 995 biosadapter[V_ADP_SECONDARY].va_flags |= V_ADP_PROBED; 996 biosadapter[V_ADP_SECONDARY].va_mode = 997 biosadapter[V_ADP_SECONDARY].va_initial_mode = 998 map_bios_mode_num(biosadapter[V_ADP_SECONDARY].va_type, 999 biosadapter[V_ADP_SECONDARY].va_flags 1000 & V_ADP_COLOR, 1001 biosadapter[V_ADP_SECONDARY].va_initial_bios_mode); 1002 } else { 1003 biosadapter[V_ADP_SECONDARY].va_type = -1; 1004 } 1005 if (verify_adapter(&biosadapter[V_ADP_PRIMARY]) == 0) { 1006 ++biosadapters; 1007 biosadapter[V_ADP_PRIMARY].va_flags |= V_ADP_PROBED; 1008 #ifndef VGA_NO_BIOS 1009 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 1010 readb(BIOS_PADDRTOVADDR(0x449)); 1011 #else 1012 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 3; /* XXX */ 1013 #endif 1014 biosadapter[V_ADP_PRIMARY].va_mode = 1015 biosadapter[V_ADP_PRIMARY].va_initial_mode = 1016 map_bios_mode_num(biosadapter[V_ADP_PRIMARY].va_type, 1017 biosadapter[V_ADP_PRIMARY].va_flags & V_ADP_COLOR, 1018 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode); 1019 } else { 1020 biosadapter[V_ADP_PRIMARY] = biosadapter[V_ADP_SECONDARY]; 1021 biosadapter[V_ADP_SECONDARY].va_type = -1; 1022 } 1023 if (biosadapters == 0) 1024 return biosadapters; 1025 biosadapter[V_ADP_PRIMARY].va_unit = V_ADP_PRIMARY; 1026 biosadapter[V_ADP_SECONDARY].va_unit = V_ADP_SECONDARY; 1027 1028 #if 0 /* we don't need these... */ 1029 fb_init_struct(&biosadapter[V_ADP_PRIMARY], ...); 1030 fb_init_struct(&biosadapter[V_ADP_SECONDARY], ...); 1031 #endif 1032 1033 #if notyet 1034 /* 1035 * We cannot have two video adapter of the same type; there must be 1036 * only one of color or mono adapter, or one each of them. 1037 */ 1038 if (biosadapters > 1) { 1039 if (!((biosadapter[0].va_flags ^ biosadapter[1].va_flags) 1040 & V_ADP_COLOR)) 1041 /* we have two mono or color adapters!! */ 1042 return (biosadapters = 0); 1043 } 1044 #endif 1045 1046 /* 1047 * Ensure a zero start address. This is mainly to recover after 1048 * switching from pcvt using userconfig(). The registers are w/o 1049 * for old hardware so it's too hard to relocate the active screen 1050 * memory. 1051 * This must be done before vga_save_state() for VGA. 1052 */ 1053 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 12); 1054 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1055 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 13); 1056 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1057 1058 /* the video mode parameter table in EGA/VGA BIOS */ 1059 /* NOTE: there can be only one EGA/VGA, wheather color or mono, 1060 * recognized by the video BIOS. 1061 */ 1062 if ((biosadapter[V_ADP_PRIMARY].va_type == KD_EGA) || 1063 (biosadapter[V_ADP_PRIMARY].va_type == KD_VGA)) { 1064 adp = &biosadapter[V_ADP_PRIMARY]; 1065 } else if ((biosadapter[V_ADP_SECONDARY].va_type == KD_EGA) || 1066 (biosadapter[V_ADP_SECONDARY].va_type == KD_VGA)) { 1067 adp = &biosadapter[V_ADP_SECONDARY]; 1068 } else { 1069 adp = NULL; 1070 } 1071 bzero(mode_map, sizeof(mode_map)); 1072 if (adp != NULL) { 1073 if (adp->va_type == KD_VGA) { 1074 vga_save_state(adp, &adpstate, sizeof(adpstate)); 1075 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1076 mode_map[adp->va_initial_mode] = adpstate.regs; 1077 rows_offset = 1; 1078 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1079 if (video_mode_ptr == NULL) { 1080 mode_map[adp->va_initial_mode] = adpstate.regs; 1081 rows_offset = 1; 1082 } else { 1083 /* discard the table if we are not familiar with it... */ 1084 map_mode_table(mode_map, video_mode_ptr, M_VGA_CG320 + 1); 1085 mp = get_mode_param(adp->va_initial_mode); 1086 if (mp != NULL) 1087 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs)); 1088 switch (comp_adpregs(adpstate.regs, mp)) { 1089 case COMP_IDENTICAL: 1090 /* 1091 * OK, this parameter table looks reasonably familiar 1092 * to us... 1093 */ 1094 /* 1095 * This is a kludge for Toshiba DynaBook SS433 1096 * whose BIOS video mode table entry has the actual # 1097 * of rows at the offset 1; BIOSes from other 1098 * manufacturers store the # of rows - 1 there. XXX 1099 */ 1100 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1101 break; 1102 1103 case COMP_SIMILAR: 1104 /* 1105 * Not exactly the same, but similar enough to be 1106 * trusted. However, use the saved register values 1107 * for the initial mode and other modes which are 1108 * based on the initial mode. 1109 */ 1110 mode_map[adp->va_initial_mode] = adpstate.regs; 1111 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1112 adpstate.regs[1] -= rows_offset - 1; 1113 break; 1114 1115 case COMP_DIFFERENT: 1116 default: 1117 /* 1118 * Don't use the paramter table in BIOS. It doesn't 1119 * look familiar to us. Video mode switching is allowed 1120 * only if the new mode is the same as or based on 1121 * the initial mode. 1122 */ 1123 video_mode_ptr = NULL; 1124 bzero(mode_map, sizeof(mode_map)); 1125 mode_map[adp->va_initial_mode] = adpstate.regs; 1126 rows_offset = 1; 1127 break; 1128 } 1129 } 1130 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1131 1132 #ifndef VGA_NO_MODE_CHANGE 1133 adp->va_flags |= V_ADP_MODECHANGE; 1134 #endif 1135 #ifndef VGA_NO_FONT_LOADING 1136 adp->va_flags |= V_ADP_FONT; 1137 #endif 1138 } else if (adp->va_type == KD_EGA) { 1139 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1140 rows_offset = 1; 1141 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1142 if (video_mode_ptr == NULL) { 1143 rows_offset = 1; 1144 } else { 1145 map_mode_table(mode_map, video_mode_ptr, M_ENH_C80x25 + 1); 1146 /* XXX how can one validate the EGA table... */ 1147 mp = get_mode_param(adp->va_initial_mode); 1148 if (mp != NULL) { 1149 adp->va_flags |= V_ADP_MODECHANGE; 1150 #ifndef VGA_NO_FONT_LOADING 1151 adp->va_flags |= V_ADP_FONT; 1152 #endif 1153 rows_offset = 1; 1154 } else { 1155 /* 1156 * This is serious. We will not be able to switch video 1157 * modes at all... 1158 */ 1159 video_mode_ptr = NULL; 1160 bzero(mode_map, sizeof(mode_map)); 1161 rows_offset = 1; 1162 } 1163 } 1164 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1165 } 1166 } 1167 1168 /* remove conflicting modes if we have more than one adapter */ 1169 if (biosadapters > 1) { 1170 for (i = 0; i < biosadapters; ++i) { 1171 if (!(biosadapter[i].va_flags & V_ADP_MODECHANGE)) 1172 continue; 1173 clear_mode_map(&biosadapter[i], mode_map, M_VGA_CG320 + 1, 1174 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1175 V_INFO_COLOR : 0); 1176 if ((biosadapter[i].va_type == KD_VGA) 1177 || (biosadapter[i].va_type == KD_EGA)) { 1178 biosadapter[i].va_io_base = 1179 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1180 IO_VGA : IO_MDA; 1181 biosadapter[i].va_io_size = 32; 1182 } 1183 } 1184 } 1185 1186 /* buffer address */ 1187 vga_get_info(&biosadapter[V_ADP_PRIMARY], 1188 biosadapter[V_ADP_PRIMARY].va_initial_mode, &info); 1189 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1190 update_adapter_info(&biosadapter[V_ADP_PRIMARY], &info); 1191 1192 if (biosadapters > 1) { 1193 vga_get_info(&biosadapter[V_ADP_SECONDARY], 1194 biosadapter[V_ADP_SECONDARY].va_initial_mode, &info); 1195 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1196 update_adapter_info(&biosadapter[V_ADP_SECONDARY], &info); 1197 } 1198 1199 /* 1200 * XXX: we should verify the following values for the primary adapter... 1201 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463); 1202 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02) 1203 * ? 0 : V_ADP_COLOR; 1204 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a); 1205 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484); 1206 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485); 1207 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c); 1208 */ 1209 1210 return biosadapters; 1211 } 1212 1213 /* set the scan line length in pixel */ 1214 static int 1215 set_line_length(video_adapter_t *adp, int pixel) 1216 { 1217 u_char *mp; 1218 int ppw; /* pixels per word */ 1219 int bpl; /* bytes per line */ 1220 int count; 1221 1222 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1223 return ENODEV; 1224 mp = get_mode_param(adp->va_mode); 1225 if (mp == NULL) 1226 return EINVAL; 1227 1228 switch (adp->va_info.vi_mem_model) { 1229 case V_INFO_MM_PLANAR: 1230 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1231 count = (pixel + ppw - 1)/ppw/2; 1232 bpl = ((pixel + ppw - 1)/ppw/2)*4; 1233 break; 1234 case V_INFO_MM_PACKED: 1235 count = (pixel + 7)/8; 1236 bpl = ((pixel + 7)/8)*8; 1237 break; 1238 case V_INFO_MM_TEXT: 1239 count = (pixel + 7)/8; /* columns */ 1240 bpl = (pixel + 7)/8; /* columns */ 1241 break; 1242 default: 1243 return ENODEV; 1244 } 1245 1246 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */ 1247 count *= 2; /* byte mode */ 1248 outb(adp->va_crtc_addr, 0x13); 1249 outb(adp->va_crtc_addr + 1, count); 1250 adp->va_line_width = bpl; 1251 1252 return 0; 1253 } 1254 1255 static int 1256 set_display_start(video_adapter_t *adp, int x, int y) 1257 { 1258 int off; /* byte offset (graphics mode)/word offset (text mode) */ 1259 int poff; /* pixel offset */ 1260 int roff; /* row offset */ 1261 int ppb; /* pixels per byte */ 1262 1263 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1264 x &= ~7; 1265 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) { 1266 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1267 off = y*adp->va_line_width + x/ppb; 1268 roff = 0; 1269 poff = x%ppb; 1270 } else { 1271 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1272 outb(TSIDX, 1); 1273 if (inb(TSREG) & 1) 1274 ppb = 9; 1275 else 1276 ppb = 8; 1277 } else { 1278 ppb = 8; 1279 } 1280 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb; 1281 roff = y%adp->va_info.vi_cheight; 1282 /* FIXME: is this correct? XXX */ 1283 if (ppb == 8) 1284 poff = x%ppb; 1285 else 1286 poff = (x + 8)%ppb; 1287 } 1288 1289 /* start address */ 1290 outb(adp->va_crtc_addr, 0xc); /* high */ 1291 outb(adp->va_crtc_addr + 1, off >> 8); 1292 outb(adp->va_crtc_addr, 0xd); /* low */ 1293 outb(adp->va_crtc_addr + 1, off & 0xff); 1294 1295 /* horizontal pel pan */ 1296 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1297 inb(adp->va_crtc_addr + 6); 1298 outb(ATC, 0x13 | 0x20); 1299 outb(ATC, poff); 1300 inb(adp->va_crtc_addr + 6); 1301 outb(ATC, 0x20); 1302 } 1303 1304 /* preset raw scan */ 1305 outb(adp->va_crtc_addr, 8); 1306 outb(adp->va_crtc_addr + 1, roff); 1307 1308 adp->va_disp_start.x = x; 1309 adp->va_disp_start.y = y; 1310 return 0; 1311 } 1312 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 1333 /* entry points */ 1334 1335 #if 0 1336 static int 1337 vga_nop(void) 1338 { 1339 return 0; 1340 } 1341 #endif 1342 1343 static int 1344 vga_error(void) 1345 { 1346 return ENODEV; 1347 } 1348 1349 static int 1350 vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 1351 { 1352 probe_adapters(); 1353 if (unit >= biosadapters) 1354 return ENXIO; 1355 1356 *adpp = &biosadapter[unit]; 1357 1358 return 0; 1359 } 1360 1361 static int 1362 vga_init(int unit, video_adapter_t *adp, int flags) 1363 { 1364 if ((unit >= biosadapters) || (adp == NULL) || !probe_done(adp)) 1365 return ENXIO; 1366 1367 if (!init_done(adp)) { 1368 /* nothing to do really... */ 1369 adp->va_flags |= V_ADP_INITIALIZED; 1370 } 1371 1372 if (!config_done(adp)) { 1373 if (vid_register(adp) < 0) 1374 return ENXIO; 1375 adp->va_flags |= V_ADP_REGISTERED; 1376 } 1377 if (vga_sub_configure != NULL) 1378 (*vga_sub_configure)(0); 1379 1380 return 0; 1381 } 1382 1383 /* 1384 * get_info(): 1385 * Return the video_info structure of the requested video mode. 1386 * 1387 * all adapters 1388 */ 1389 static int 1390 vga_get_info(video_adapter_t *adp, int mode, video_info_t *info) 1391 { 1392 int i; 1393 1394 if (!vga_init_done) 1395 return ENXIO; 1396 1397 mode = map_gen_mode_num(adp->va_type, adp->va_flags & V_ADP_COLOR, mode); 1398 #ifndef VGA_NO_MODE_CHANGE 1399 if (adp->va_flags & V_ADP_MODECHANGE) { 1400 /* 1401 * If the parameter table entry for this mode is not found, 1402 * the mode is not supported... 1403 */ 1404 if (get_mode_param(mode) == NULL) 1405 return EINVAL; 1406 } else 1407 #endif /* VGA_NO_MODE_CHANGE */ 1408 { 1409 /* 1410 * Even if we don't support video mode switching on this adapter, 1411 * the information on the initial (thus current) video mode 1412 * should be made available. 1413 */ 1414 if (mode != adp->va_initial_mode) 1415 return EINVAL; 1416 } 1417 1418 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1419 if (bios_vmode[i].vi_mode == NA) 1420 continue; 1421 if (mode == bios_vmode[i].vi_mode) { 1422 *info = bios_vmode[i]; 1423 /* XXX */ 1424 info->vi_buffer_size = info->vi_window_size*info->vi_planes; 1425 return 0; 1426 } 1427 } 1428 return EINVAL; 1429 } 1430 1431 /* 1432 * query_mode(): 1433 * Find a video mode matching the requested parameters. 1434 * Fields filled with 0 are considered "don't care" fields and 1435 * match any modes. 1436 * 1437 * all adapters 1438 */ 1439 static int 1440 vga_query_mode(video_adapter_t *adp, video_info_t *info) 1441 { 1442 video_info_t buf; 1443 int i; 1444 1445 if (!vga_init_done) 1446 return -1; 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, &buf)) 1477 continue; 1478 return bios_vmode[i].vi_mode; 1479 } 1480 return -1; 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 /* FALL THROUGH */ 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 /* FALL THROUGH */ 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 /* FALL THROUGH */ 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 /* FALL THROUGH */ 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 /* FALL THROUGH */ 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 adressing */ 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 int s; 1654 1655 s = splhigh(); 1656 1657 /* save register values */ 1658 if (adp->va_type == KD_VGA) { 1659 outb(TSIDX, 0x02); buf[0] = inb(TSREG); 1660 outb(TSIDX, 0x04); buf[1] = inb(TSREG); 1661 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG); 1662 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG); 1663 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG); 1664 inb(adp->va_crtc_addr + 6); 1665 outb(ATC, 0x10); buf[5] = inb(ATC + 1); 1666 } else /* if (adp->va_type == KD_EGA) */ { 1667 /* 1668 * EGA cannot be read; copy parameters from the mode parameter 1669 * table. 1670 */ 1671 mp = get_mode_param(adp->va_mode); 1672 buf[0] = mp[5 + 0x02 - 1]; 1673 buf[1] = mp[5 + 0x04 - 1]; 1674 buf[2] = mp[55 + 0x04]; 1675 buf[3] = mp[55 + 0x05]; 1676 buf[4] = mp[55 + 0x06]; 1677 buf[5] = mp[35 + 0x10]; 1678 } 1679 1680 /* setup vga for loading fonts */ 1681 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1682 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01); 1683 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1684 outb(ATC, 0x20); /* enable palette */ 1685 1686 #if VGA_SLOW_IOACCESS 1687 #ifdef VGA_ALT_SEQACCESS 1688 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1689 #endif 1690 outb(TSIDX, 0x02); outb(TSREG, 0x04); 1691 outb(TSIDX, 0x04); outb(TSREG, 0x07); 1692 #ifdef VGA_ALT_SEQACCESS 1693 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1694 #endif 1695 outb(GDCIDX, 0x04); outb(GDCREG, 0x02); 1696 outb(GDCIDX, 0x05); outb(GDCREG, 0x00); 1697 outb(GDCIDX, 0x06); outb(GDCREG, 0x04); 1698 #else /* VGA_SLOW_IOACCESS */ 1699 #ifdef VGA_ALT_SEQACCESS 1700 outw(TSIDX, 0x0100); 1701 #endif 1702 outw(TSIDX, 0x0402); 1703 outw(TSIDX, 0x0704); 1704 #ifdef VGA_ALT_SEQACCESS 1705 outw(TSIDX, 0x0300); 1706 #endif 1707 outw(GDCIDX, 0x0204); 1708 outw(GDCIDX, 0x0005); 1709 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */ 1710 #endif /* VGA_SLOW_IOACCESS */ 1711 1712 splx(s); 1713 } 1714 1715 static void 1716 set_normal_mode(video_adapter_t *adp, u_char *buf) 1717 { 1718 int s; 1719 1720 s = splhigh(); 1721 1722 /* setup vga for normal operation mode again */ 1723 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1724 outb(ATC, 0x10); outb(ATC, buf[5]); 1725 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1726 outb(ATC, 0x20); /* enable palette */ 1727 1728 #if VGA_SLOW_IOACCESS 1729 #ifdef VGA_ALT_SEQACCESS 1730 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1731 #endif 1732 outb(TSIDX, 0x02); outb(TSREG, buf[0]); 1733 outb(TSIDX, 0x04); outb(TSREG, buf[1]); 1734 #ifdef VGA_ALT_SEQACCESS 1735 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1736 #endif 1737 outb(GDCIDX, 0x04); outb(GDCREG, buf[2]); 1738 outb(GDCIDX, 0x05); outb(GDCREG, buf[3]); 1739 if (adp->va_crtc_addr == MONO_CRTC) { 1740 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x08); 1741 } else { 1742 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x0c); 1743 } 1744 #else /* VGA_SLOW_IOACCESS */ 1745 #ifdef VGA_ALT_SEQACCESS 1746 outw(TSIDX, 0x0100); 1747 #endif 1748 outw(TSIDX, 0x0002 | (buf[0] << 8)); 1749 outw(TSIDX, 0x0004 | (buf[1] << 8)); 1750 #ifdef VGA_ALT_SEQACCESS 1751 outw(TSIDX, 0x0300); 1752 #endif 1753 outw(GDCIDX, 0x0004 | (buf[2] << 8)); 1754 outw(GDCIDX, 0x0005 | (buf[3] << 8)); 1755 if (adp->va_crtc_addr == MONO_CRTC) 1756 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x08)<<8)); 1757 else 1758 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8)); 1759 #endif /* VGA_SLOW_IOACCESS */ 1760 1761 splx(s); 1762 } 1763 1764 #endif /* VGA_NO_FONT_LOADING */ 1765 1766 /* 1767 * save_font(): 1768 * Read the font data in the requested font page from the video adapter. 1769 * 1770 * EGA/VGA 1771 */ 1772 static int 1773 vga_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1774 int ch, int count) 1775 { 1776 #ifndef VGA_NO_FONT_LOADING 1777 u_char buf[PARAM_BUFSIZE]; 1778 u_int32_t segment; 1779 int c; 1780 #ifdef VGA_ALT_SEQACCESS 1781 int s; 1782 u_char val = 0; 1783 #endif 1784 1785 prologue(adp, V_ADP_FONT, ENODEV); 1786 1787 if (fontsize < 14) { 1788 /* FONT_8 */ 1789 fontsize = 8; 1790 } else if (fontsize >= 32) { 1791 fontsize = 32; 1792 } else if (fontsize >= 16) { 1793 /* FONT_16 */ 1794 fontsize = 16; 1795 } else { 1796 /* FONT_14 */ 1797 fontsize = 14; 1798 } 1799 1800 if (page < 0 || page >= 8) 1801 return EINVAL; 1802 segment = FONT_BUF + 0x4000*page; 1803 if (page > 3) 1804 segment -= 0xe000; 1805 1806 #ifdef VGA_ALT_SEQACCESS 1807 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1808 s = splhigh(); 1809 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1810 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1811 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1812 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1813 splx(s); 1814 } 1815 #endif 1816 1817 set_font_mode(adp, buf); 1818 if (fontsize == 32) { 1819 bcopy_fromio(segment + ch*32, data, fontsize*count); 1820 } else { 1821 for (c = ch; count > 0; ++c, --count) { 1822 bcopy_fromio(segment + c*32, data, fontsize); 1823 data += fontsize; 1824 } 1825 } 1826 set_normal_mode(adp, buf); 1827 1828 #ifdef VGA_ALT_SEQACCESS 1829 if (adp->va_type == KD_VGA) { 1830 s = splhigh(); 1831 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1832 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1833 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1834 splx(s); 1835 } 1836 #endif 1837 1838 return 0; 1839 #else /* VGA_NO_FONT_LOADING */ 1840 return ENODEV; 1841 #endif /* VGA_NO_FONT_LOADING */ 1842 } 1843 1844 /* 1845 * load_font(): 1846 * Set the font data in the requested font page. 1847 * NOTE: it appears that some recent video adapters do not support 1848 * the font page other than 0... XXX 1849 * 1850 * EGA/VGA 1851 */ 1852 static int 1853 vga_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1854 int ch, int count) 1855 { 1856 #ifndef VGA_NO_FONT_LOADING 1857 u_char buf[PARAM_BUFSIZE]; 1858 u_int32_t segment; 1859 int c; 1860 #ifdef VGA_ALT_SEQACCESS 1861 int s; 1862 u_char val = 0; 1863 #endif 1864 1865 prologue(adp, V_ADP_FONT, ENODEV); 1866 1867 if (fontsize < 14) { 1868 /* FONT_8 */ 1869 fontsize = 8; 1870 } else if (fontsize >= 32) { 1871 fontsize = 32; 1872 } else if (fontsize >= 16) { 1873 /* FONT_16 */ 1874 fontsize = 16; 1875 } else { 1876 /* FONT_14 */ 1877 fontsize = 14; 1878 } 1879 1880 if (page < 0 || page >= 8) 1881 return EINVAL; 1882 segment = FONT_BUF + 0x4000*page; 1883 if (page > 3) 1884 segment -= 0xe000; 1885 1886 #ifdef VGA_ALT_SEQACCESS 1887 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1888 s = splhigh(); 1889 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1890 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1891 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1892 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1893 splx(s); 1894 } 1895 #endif 1896 1897 set_font_mode(adp, buf); 1898 if (fontsize == 32) { 1899 bcopy_toio(data, segment + ch*32, fontsize*count); 1900 } else { 1901 for (c = ch; count > 0; ++c, --count) { 1902 bcopy_toio(data, segment + c*32, fontsize); 1903 data += fontsize; 1904 } 1905 } 1906 set_normal_mode(adp, buf); 1907 1908 #ifdef VGA_ALT_SEQACCESS 1909 if (adp->va_type == KD_VGA) { 1910 s = splhigh(); 1911 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1912 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1913 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1914 splx(s); 1915 } 1916 #endif 1917 1918 return 0; 1919 #else /* VGA_NO_FONT_LOADING */ 1920 return ENODEV; 1921 #endif /* VGA_NO_FONT_LOADING */ 1922 } 1923 1924 /* 1925 * show_font(): 1926 * Activate the requested font page. 1927 * NOTE: it appears that some recent video adapters do not support 1928 * the font page other than 0... XXX 1929 * 1930 * EGA/VGA 1931 */ 1932 static int 1933 vga_show_font(video_adapter_t *adp, int page) 1934 { 1935 #ifndef VGA_NO_FONT_LOADING 1936 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f }; 1937 int s; 1938 1939 prologue(adp, V_ADP_FONT, ENODEV); 1940 if (page < 0 || page >= 8) 1941 return EINVAL; 1942 1943 s = splhigh(); 1944 outb(TSIDX, 0x03); outb(TSREG, cg[page]); 1945 splx(s); 1946 1947 return 0; 1948 #else /* VGA_NO_FONT_LOADING */ 1949 return ENODEV; 1950 #endif /* VGA_NO_FONT_LOADING */ 1951 } 1952 1953 /* 1954 * save_palette(): 1955 * Read DAC values. The values have expressed in 8 bits. 1956 * 1957 * VGA 1958 */ 1959 static int 1960 vga_save_palette(video_adapter_t *adp, u_char *palette) 1961 { 1962 int i; 1963 1964 prologue(adp, V_ADP_PALETTE, ENODEV); 1965 1966 /* 1967 * We store 8 bit values in the palette buffer, while the standard 1968 * VGA has 6 bit DAC . 1969 */ 1970 outb(PALRADR, 0x00); 1971 for (i = 0; i < 256*3; ++i) 1972 palette[i] = inb(PALDATA) << 2; 1973 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1974 return 0; 1975 } 1976 1977 static int 1978 vga_save_palette2(video_adapter_t *adp, int base, int count, 1979 u_char *r, u_char *g, u_char *b) 1980 { 1981 int i; 1982 1983 prologue(adp, V_ADP_PALETTE, ENODEV); 1984 1985 outb(PALRADR, base); 1986 for (i = 0; i < count; ++i) { 1987 r[i] = inb(PALDATA) << 2; 1988 g[i] = inb(PALDATA) << 2; 1989 b[i] = inb(PALDATA) << 2; 1990 } 1991 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1992 return 0; 1993 } 1994 1995 /* 1996 * load_palette(): 1997 * Set DAC values. 1998 * 1999 * VGA 2000 */ 2001 static int 2002 vga_load_palette(video_adapter_t *adp, u_char *palette) 2003 { 2004 int i; 2005 2006 prologue(adp, V_ADP_PALETTE, ENODEV); 2007 2008 outb(PIXMASK, 0xff); /* no pixelmask */ 2009 outb(PALWADR, 0x00); 2010 for (i = 0; i < 256*3; ++i) 2011 outb(PALDATA, palette[i] >> 2); 2012 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2013 outb(ATC, 0x20); /* enable palette */ 2014 return 0; 2015 } 2016 2017 static int 2018 vga_load_palette2(video_adapter_t *adp, int base, int count, 2019 u_char *r, u_char *g, u_char *b) 2020 { 2021 int i; 2022 2023 prologue(adp, V_ADP_PALETTE, ENODEV); 2024 2025 outb(PIXMASK, 0xff); /* no pixelmask */ 2026 outb(PALWADR, base); 2027 for (i = 0; i < count; ++i) { 2028 outb(PALDATA, r[i] >> 2); 2029 outb(PALDATA, g[i] >> 2); 2030 outb(PALDATA, b[i] >> 2); 2031 } 2032 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2033 outb(ATC, 0x20); /* enable palette */ 2034 return 0; 2035 } 2036 2037 /* 2038 * set_border(): 2039 * Change the border color. 2040 * 2041 * CGA/EGA/VGA 2042 */ 2043 static int 2044 vga_set_border(video_adapter_t *adp, int color) 2045 { 2046 prologue(adp, V_ADP_BORDER, ENODEV); 2047 2048 switch (adp->va_type) { 2049 case KD_EGA: 2050 case KD_VGA: 2051 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 2052 outb(ATC, 0x31); outb(ATC, color & 0xff); 2053 break; 2054 case KD_CGA: 2055 outb(adp->va_crtc_addr + 5, color & 0x0f); /* color select register */ 2056 break; 2057 case KD_MONO: 2058 case KD_HERCULES: 2059 default: 2060 break; 2061 } 2062 return 0; 2063 } 2064 2065 /* 2066 * save_state(): 2067 * Read video register values. 2068 * NOTE: this function only reads the standard EGA/VGA registers. 2069 * any extra/extended registers of SVGA adapters are not saved. 2070 * 2071 * VGA 2072 */ 2073 static int 2074 vga_save_state(video_adapter_t *adp, void *p, size_t size) 2075 { 2076 video_info_t info; 2077 u_char *buf; 2078 int crtc_addr; 2079 int i, j; 2080 int s; 2081 2082 if (size == 0) { 2083 /* return the required buffer size */ 2084 prologue(adp, V_ADP_STATESAVE, 0); 2085 return sizeof(adp_state_t); 2086 } else { 2087 prologue(adp, V_ADP_STATESAVE, ENODEV); 2088 if (size < sizeof(adp_state_t)) 2089 return EINVAL; 2090 } 2091 2092 ((adp_state_t *)p)->sig = V_STATE_SIG; 2093 buf = ((adp_state_t *)p)->regs; 2094 bzero(buf, V_MODE_PARAM_SIZE); 2095 crtc_addr = adp->va_crtc_addr; 2096 2097 s = splhigh(); 2098 2099 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2100 for (i = 0, j = 5; i < 4; i++) { 2101 outb(TSIDX, i + 1); 2102 buf[j++] = inb(TSREG); 2103 } 2104 buf[9] = inb(MISC + 10); /* dot-clock */ 2105 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2106 2107 for (i = 0, j = 10; i < 25; i++) { /* crtc */ 2108 outb(crtc_addr, i); 2109 buf[j++] = inb(crtc_addr + 1); 2110 } 2111 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */ 2112 inb(crtc_addr + 6); /* reset flip-flop */ 2113 outb(ATC, i); 2114 buf[j++] = inb(ATC + 1); 2115 } 2116 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */ 2117 outb(GDCIDX, i); 2118 buf[j++] = inb(GDCREG); 2119 } 2120 inb(crtc_addr + 6); /* reset flip-flop */ 2121 outb(ATC, 0x20); /* enable palette */ 2122 2123 splx(s); 2124 2125 #if 1 2126 if (vga_get_info(adp, adp->va_mode, &info) == 0) { 2127 if (info.vi_flags & V_INFO_GRAPHICS) { 2128 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */ 2129 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */ 2130 } else { 2131 buf[0] = info.vi_width; /* COLS */ 2132 buf[1] = info.vi_height - 1; /* ROWS */ 2133 } 2134 buf[2] = info.vi_cheight; /* POINTS */ 2135 } else { 2136 /* XXX: shouldn't be happening... */ 2137 printf("vga%d: %s: failed to obtain mode info. (vga_save_state())\n", 2138 adp->va_unit, adp->va_name); 2139 } 2140 #else 2141 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */ 2142 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */ 2143 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */ 2144 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c)); 2145 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d)); 2146 #endif 2147 2148 return 0; 2149 } 2150 2151 /* 2152 * load_state(): 2153 * Set video registers at once. 2154 * NOTE: this function only updates the standard EGA/VGA registers. 2155 * any extra/extended registers of SVGA adapters are not changed. 2156 * 2157 * EGA/VGA 2158 */ 2159 static int 2160 vga_load_state(video_adapter_t *adp, void *p) 2161 { 2162 u_char *buf; 2163 int crtc_addr; 2164 int s; 2165 int i; 2166 2167 prologue(adp, V_ADP_STATELOAD, ENODEV); 2168 if (((adp_state_t *)p)->sig != V_STATE_SIG) 2169 return EINVAL; 2170 2171 buf = ((adp_state_t *)p)->regs; 2172 crtc_addr = adp->va_crtc_addr; 2173 2174 #if VGA_DEBUG > 1 2175 dump_buffer(buf, V_MODE_PARAM_SIZE); 2176 #endif 2177 2178 s = splhigh(); 2179 2180 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2181 for (i = 0; i < 4; ++i) { /* program sequencer */ 2182 outb(TSIDX, i + 1); 2183 outb(TSREG, buf[i + 5]); 2184 } 2185 outb(MISC, buf[9]); /* set dot-clock */ 2186 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2187 outb(crtc_addr, 0x11); 2188 outb(crtc_addr + 1, inb(crtc_addr + 1) & 0x7F); 2189 for (i = 0; i < 25; ++i) { /* program crtc */ 2190 outb(crtc_addr, i); 2191 outb(crtc_addr + 1, buf[i + 10]); 2192 } 2193 inb(crtc_addr+6); /* reset flip-flop */ 2194 for (i = 0; i < 20; ++i) { /* program attribute ctrl */ 2195 outb(ATC, i); 2196 outb(ATC, buf[i + 35]); 2197 } 2198 for (i = 0; i < 9; ++i) { /* program graph data ctrl */ 2199 outb(GDCIDX, i); 2200 outb(GDCREG, buf[i + 55]); 2201 } 2202 inb(crtc_addr + 6); /* reset flip-flop */ 2203 outb(ATC, 0x20); /* enable palette */ 2204 2205 #if notyet /* a temporary workaround for kernel panic, XXX */ 2206 #ifndef VGA_NO_BIOS 2207 if (adp->va_unit == V_ADP_PRIMARY) { 2208 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */ 2209 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */ 2210 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */ 2211 #if 0 2212 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]); 2213 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]); 2214 #endif 2215 } 2216 #endif /* VGA_NO_BIOS */ 2217 #endif /* notyet */ 2218 2219 splx(s); 2220 return 0; 2221 } 2222 2223 /* 2224 * set_origin(): 2225 * Change the origin (window mapping) of the banked frame buffer. 2226 */ 2227 static int 2228 vga_set_origin(video_adapter_t *adp, off_t offset) 2229 { 2230 /* 2231 * The standard video modes do not require window mapping; 2232 * always return error. 2233 */ 2234 return ENODEV; 2235 } 2236 2237 /* 2238 * read_hw_cursor(): 2239 * Read the position of the hardware text cursor. 2240 * 2241 * all adapters 2242 */ 2243 static int 2244 vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 2245 { 2246 u_int16_t off; 2247 int s; 2248 2249 if (!vga_init_done) 2250 return ENXIO; 2251 2252 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2253 return ENODEV; 2254 2255 s = spltty(); 2256 outb(adp->va_crtc_addr, 14); 2257 off = inb(adp->va_crtc_addr + 1); 2258 outb(adp->va_crtc_addr, 15); 2259 off = (off << 8) | inb(adp->va_crtc_addr + 1); 2260 splx(s); 2261 2262 *row = off / adp->va_info.vi_width; 2263 *col = off % adp->va_info.vi_width; 2264 2265 return 0; 2266 } 2267 2268 /* 2269 * set_hw_cursor(): 2270 * Move the hardware text cursor. If col and row are both -1, 2271 * the cursor won't be shown. 2272 * 2273 * all adapters 2274 */ 2275 static int 2276 vga_set_hw_cursor(video_adapter_t *adp, int col, int row) 2277 { 2278 u_int16_t off; 2279 int s; 2280 2281 if (!vga_init_done) 2282 return ENXIO; 2283 2284 if ((col == -1) && (row == -1)) { 2285 off = -1; 2286 } else { 2287 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2288 return ENODEV; 2289 off = row*adp->va_info.vi_width + col; 2290 } 2291 2292 s = spltty(); 2293 outb(adp->va_crtc_addr, 14); 2294 outb(adp->va_crtc_addr + 1, off >> 8); 2295 outb(adp->va_crtc_addr, 15); 2296 outb(adp->va_crtc_addr + 1, off & 0x00ff); 2297 splx(s); 2298 2299 return 0; 2300 } 2301 2302 /* 2303 * set_hw_cursor_shape(): 2304 * Change the shape of the hardware text cursor. If the height is 2305 * zero or negative, the cursor won't be shown. 2306 * 2307 * all adapters 2308 */ 2309 static int 2310 vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 2311 int celsize, int blink) 2312 { 2313 int s; 2314 2315 if (!vga_init_done) 2316 return ENXIO; 2317 2318 s = spltty(); 2319 switch (adp->va_type) { 2320 case KD_VGA: 2321 case KD_CGA: 2322 case KD_MONO: 2323 case KD_HERCULES: 2324 default: 2325 if (height <= 0) { 2326 /* make the cursor invisible */ 2327 outb(adp->va_crtc_addr, 10); 2328 outb(adp->va_crtc_addr + 1, 32); 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 - 1); 2336 } 2337 break; 2338 case KD_EGA: 2339 if (height <= 0) { 2340 /* make the cursor invisible */ 2341 outb(adp->va_crtc_addr, 10); 2342 outb(adp->va_crtc_addr + 1, celsize); 2343 outb(adp->va_crtc_addr, 11); 2344 outb(adp->va_crtc_addr + 1, 0); 2345 } else { 2346 outb(adp->va_crtc_addr, 10); 2347 outb(adp->va_crtc_addr + 1, celsize - base - height); 2348 outb(adp->va_crtc_addr, 11); 2349 outb(adp->va_crtc_addr + 1, celsize - base); 2350 } 2351 break; 2352 } 2353 splx(s); 2354 2355 return 0; 2356 } 2357 2358 /* 2359 * blank_display() 2360 * Put the display in power save/power off mode. 2361 * 2362 * all adapters 2363 */ 2364 static int 2365 vga_blank_display(video_adapter_t *adp, int mode) 2366 { 2367 u_char val; 2368 int s; 2369 2370 s = splhigh(); 2371 switch (adp->va_type) { 2372 case KD_VGA: 2373 switch (mode) { 2374 case V_DISPLAY_SUSPEND: 2375 case V_DISPLAY_STAND_BY: 2376 outb(TSIDX, 0x01); 2377 val = inb(TSREG); 2378 outb(TSIDX, 0x01); 2379 outb(TSREG, val | 0x20); 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 case V_DISPLAY_BLANK: 2385 outb(TSIDX, 0x01); 2386 val = inb(TSREG); 2387 outb(TSIDX, 0x01); 2388 outb(TSREG, val | 0x20); 2389 break; 2390 case V_DISPLAY_ON: 2391 outb(TSIDX, 0x01); 2392 val = inb(TSREG); 2393 outb(TSIDX, 0x01); 2394 outb(TSREG, val & 0xDF); 2395 outb(adp->va_crtc_addr, 0x17); 2396 val = inb(adp->va_crtc_addr + 1); 2397 outb(adp->va_crtc_addr + 1, val | 0x80); 2398 break; 2399 } 2400 break; 2401 2402 case KD_EGA: 2403 /* no support yet */ 2404 return ENODEV; 2405 2406 case KD_CGA: 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, 0x25); 2412 break; 2413 case V_DISPLAY_ON: 2414 outb(adp->va_crtc_addr + 4, 0x2d); 2415 break; 2416 } 2417 break; 2418 2419 case KD_MONO: 2420 case KD_HERCULES: 2421 switch (mode) { 2422 case V_DISPLAY_SUSPEND: 2423 case V_DISPLAY_STAND_BY: 2424 case V_DISPLAY_BLANK: 2425 outb(adp->va_crtc_addr + 4, 0x21); 2426 break; 2427 case V_DISPLAY_ON: 2428 outb(adp->va_crtc_addr + 4, 0x29); 2429 break; 2430 } 2431 break; 2432 default: 2433 break; 2434 } 2435 splx(s); 2436 2437 return 0; 2438 } 2439 2440 /* 2441 * mmap(): 2442 * Mmap frame buffer. 2443 * 2444 * all adapters 2445 */ 2446 static int 2447 vga_mmap_buf(video_adapter_t *adp, vm_offset_t offset, int prot) 2448 { 2449 if (adp->va_info.vi_flags & V_INFO_LINEAR) 2450 return -1; 2451 2452 #if VGA_DEBUG > 0 2453 printf("vga_mmap_buf(): window:0x%x, offset:0x%x\n", 2454 adp->va_info.vi_window, offset); 2455 #endif 2456 2457 /* XXX: is this correct? */ 2458 if (offset > adp->va_window_size - PAGE_SIZE) 2459 return -1; 2460 2461 #ifdef __i386__ 2462 return i386_btop(adp->va_info.vi_window + offset); 2463 #endif 2464 #ifdef __alpha__ 2465 return alpha_btop(adp->va_info.vi_window + offset); 2466 #endif 2467 } 2468 2469 #ifndef VGA_NO_MODE_CHANGE 2470 2471 static void 2472 planar_fill(video_adapter_t *adp, int val) 2473 { 2474 int length; 2475 int at; /* position in the frame buffer */ 2476 int l; 2477 2478 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2479 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2480 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2481 outw(GDCIDX, 0xff08); /* bit mask */ 2482 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2483 at = 0; 2484 length = adp->va_line_width*adp->va_info.vi_height; 2485 while (length > 0) { 2486 l = imin(length, adp->va_window_size); 2487 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2488 bzero_io(adp->va_window, l); 2489 length -= l; 2490 at += l; 2491 } 2492 outw(GDCIDX, 0x0000); /* set/reset */ 2493 outw(GDCIDX, 0x0001); /* set/reset enable */ 2494 } 2495 2496 static void 2497 packed_fill(video_adapter_t *adp, int val) 2498 { 2499 int length; 2500 int at; /* position in the frame buffer */ 2501 int l; 2502 2503 at = 0; 2504 length = adp->va_line_width*adp->va_info.vi_height; 2505 while (length > 0) { 2506 l = imin(length, adp->va_window_size); 2507 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2508 fill_io(val, adp->va_window, l); 2509 length -= l; 2510 at += l; 2511 } 2512 } 2513 2514 static void 2515 direct_fill(video_adapter_t *adp, int val) 2516 { 2517 int length; 2518 int at; /* position in the frame buffer */ 2519 int l; 2520 2521 at = 0; 2522 length = adp->va_line_width*adp->va_info.vi_height; 2523 while (length > 0) { 2524 l = imin(length, adp->va_window_size); 2525 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2526 switch (adp->va_info.vi_pixel_size) { 2527 case sizeof(u_int16_t): 2528 fillw_io(val, adp->va_window, l/sizeof(u_int16_t)); 2529 break; 2530 case 3: 2531 /* FIXME */ 2532 break; 2533 case sizeof(u_int32_t): 2534 filll_io(val, adp->va_window, l/sizeof(u_int32_t)); 2535 break; 2536 } 2537 length -= l; 2538 at += l; 2539 } 2540 } 2541 2542 static int 2543 vga_clear(video_adapter_t *adp) 2544 { 2545 switch (adp->va_info.vi_mem_model) { 2546 case V_INFO_MM_TEXT: 2547 /* do nothing? XXX */ 2548 break; 2549 case V_INFO_MM_PLANAR: 2550 planar_fill(adp, 0); 2551 break; 2552 case V_INFO_MM_PACKED: 2553 packed_fill(adp, 0); 2554 break; 2555 case V_INFO_MM_DIRECT: 2556 direct_fill(adp, 0); 2557 break; 2558 } 2559 return 0; 2560 } 2561 2562 #ifdef notyet 2563 static void 2564 planar_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2565 { 2566 int banksize; 2567 int bank; 2568 int pos; 2569 int offset; /* offset within window */ 2570 int bx; 2571 int l; 2572 2573 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2574 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2575 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2576 outw(GDCIDX, 0xff08); /* bit mask */ 2577 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2578 2579 banksize = adp->va_window_size; 2580 bank = -1; 2581 while (cy > 0) { 2582 pos = adp->va_line_width*y + x/8; 2583 if (bank != pos/banksize) { 2584 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2585 bank = pos/banksize; 2586 } 2587 offset = pos%banksize; 2588 bx = (x + cx)/8 - x/8; 2589 if (x % 8) { 2590 outw(GDCIDX, ((0xff00 >> (x % 8)) & 0xff00) | 0x08); 2591 writeb(adp->va_window + offset, 0); 2592 ++offset; 2593 --bx; 2594 if (offset >= banksize) { 2595 offset = 0; 2596 ++bank; /* next bank */ 2597 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2598 } 2599 outw(GDCIDX, 0xff08); /* bit mask */ 2600 } 2601 while (bx > 0) { 2602 l = imin(bx, banksize); 2603 bzero_io(adp->va_window + offset, l); 2604 offset += l; 2605 bx -= l; 2606 if (offset >= banksize) { 2607 offset = 0; 2608 ++bank; /* next bank */ 2609 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2610 } 2611 } 2612 if ((x + cx) % 8) { 2613 outw(GDCIDX, (~(0xff00 >> ((x + cx) % 8)) & 0xff00) | 0x08); 2614 writeb(adp->va_window + offset, 0); 2615 ++offset; 2616 if (offset >= banksize) { 2617 offset = 0; 2618 ++bank; /* next bank */ 2619 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2620 } 2621 outw(GDCIDX, 0xff08); /* bit mask */ 2622 } 2623 ++y; 2624 --cy; 2625 } 2626 2627 outw(GDCIDX, 0xff08); /* bit mask */ 2628 outw(GDCIDX, 0x0000); /* set/reset */ 2629 outw(GDCIDX, 0x0001); /* set/reset enable */ 2630 } 2631 2632 static void 2633 packed_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2634 { 2635 int banksize; 2636 int bank; 2637 int pos; 2638 int offset; /* offset within window */ 2639 int end; 2640 2641 banksize = adp->va_window_size; 2642 bank = -1; 2643 cx *= adp->va_info.vi_pixel_size; 2644 while (cy > 0) { 2645 pos = adp->va_line_width*y + x*adp->va_info.vi_pixel_size; 2646 if (bank != pos/banksize) { 2647 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2648 bank = pos/banksize; 2649 } 2650 offset = pos%banksize; 2651 end = imin(offset + cx, banksize); 2652 fill_io(val, adp->va_window + offset, 2653 (end - offset)/adp->va_info.vi_pixel_size); 2654 /* the line may cross the window boundary */ 2655 if (offset + cx > banksize) { 2656 ++bank; /* next bank */ 2657 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2658 end = offset + cx - banksize; 2659 fill_io(val, adp->va_window, end/adp->va_info.vi_pixel_size); 2660 } 2661 ++y; 2662 --cy; 2663 } 2664 } 2665 2666 static void 2667 direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2668 { 2669 int banksize; 2670 int bank; 2671 int pos; 2672 int offset; /* offset within window */ 2673 int end; 2674 2675 /* 2676 * XXX: the function assumes that banksize is a muliple of 2677 * sizeof(u_int16_t). 2678 */ 2679 banksize = adp->va_window_size; 2680 bank = -1; 2681 cx *= sizeof(u_int16_t); 2682 while (cy > 0) { 2683 pos = adp->va_line_width*y + x*sizeof(u_int16_t); 2684 if (bank != pos/banksize) { 2685 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2686 bank = pos/banksize; 2687 } 2688 offset = pos%banksize; 2689 end = imin(offset + cx, banksize); 2690 fillw_io(val, adp->va_window + offset, 2691 (end - offset)/sizeof(u_int16_t)); 2692 /* the line may cross the window boundary */ 2693 if (offset + cx > banksize) { 2694 ++bank; /* next bank */ 2695 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2696 end = offset + cx - banksize; 2697 fillw_io(val, adp->va_window, end/sizeof(u_int16_t)); 2698 } 2699 ++y; 2700 --cy; 2701 } 2702 } 2703 2704 static void 2705 direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2706 { 2707 int banksize; 2708 int bank; 2709 int pos; 2710 int offset; /* offset within window */ 2711 int end; 2712 int i; 2713 int j; 2714 u_int8_t b[3]; 2715 2716 b[0] = val & 0x0000ff; 2717 b[1] = (val >> 8) & 0x0000ff; 2718 b[2] = (val >> 16) & 0x0000ff; 2719 banksize = adp->va_window_size; 2720 bank = -1; 2721 cx *= 3; 2722 while (cy > 0) { 2723 pos = adp->va_line_width*y + x*3; 2724 if (bank != pos/banksize) { 2725 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2726 bank = pos/banksize; 2727 } 2728 offset = pos%banksize; 2729 end = imin(offset + cx, banksize); 2730 for (i = 0, j = offset; j < end; i = (++i)%3, ++j) { 2731 writeb(adp->va_window + j, b[i]); 2732 } 2733 /* the line may cross the window boundary */ 2734 if (offset + cx >= banksize) { 2735 ++bank; /* next bank */ 2736 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2737 j = 0; 2738 end = offset + cx - banksize; 2739 for (; j < end; i = (++i)%3, ++j) { 2740 writeb(adp->va_window + j, b[i]); 2741 } 2742 } 2743 ++y; 2744 --cy; 2745 } 2746 } 2747 2748 static void 2749 direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2750 { 2751 int banksize; 2752 int bank; 2753 int pos; 2754 int offset; /* offset within window */ 2755 int end; 2756 2757 /* 2758 * XXX: the function assumes that banksize is a muliple of 2759 * sizeof(u_int32_t). 2760 */ 2761 banksize = adp->va_window_size; 2762 bank = -1; 2763 cx *= sizeof(u_int32_t); 2764 while (cy > 0) { 2765 pos = adp->va_line_width*y + x*sizeof(u_int32_t); 2766 if (bank != pos/banksize) { 2767 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2768 bank = pos/banksize; 2769 } 2770 offset = pos%banksize; 2771 end = imin(offset + cx, banksize); 2772 filll_io(val, adp->va_window + offset, 2773 (end - offset)/sizeof(u_int32_t)); 2774 /* the line may cross the window boundary */ 2775 if (offset + cx > banksize) { 2776 ++bank; /* next bank */ 2777 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2778 end = offset + cx - banksize; 2779 filll_io(val, adp->va_window, end/sizeof(u_int32_t)); 2780 } 2781 ++y; 2782 --cy; 2783 } 2784 } 2785 2786 static int 2787 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2788 { 2789 switch (adp->va_info.vi_mem_model) { 2790 case V_INFO_MM_TEXT: 2791 /* do nothing? XXX */ 2792 break; 2793 case V_INFO_MM_PLANAR: 2794 planar_fill_rect(adp, val, x, y, cx, cy); 2795 break; 2796 case V_INFO_MM_PACKED: 2797 packed_fill_rect(adp, val, x, y, cx, cy); 2798 break; 2799 case V_INFO_MM_DIRECT: 2800 switch (adp->va_info.vi_pixel_size) { 2801 case sizeof(u_int16_t): 2802 direct_fill_rect16(adp, val, x, y, cx, cy); 2803 break; 2804 case 3: 2805 direct_fill_rect24(adp, val, x, y, cx, cy); 2806 break; 2807 case sizeof(u_int32_t): 2808 direct_fill_rect32(adp, val, x, y, cx, cy); 2809 break; 2810 } 2811 break; 2812 } 2813 return 0; 2814 } 2815 #else /* !notyet */ 2816 static int 2817 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2818 { 2819 return ENODEV; 2820 } 2821 #endif /* notyet */ 2822 2823 static int 2824 vga_bitblt(video_adapter_t *adp,...) 2825 { 2826 /* FIXME */ 2827 return ENODEV; 2828 } 2829 2830 #endif /* !VGA_NO_MODE_CHANGE */ 2831 2832 static int 2833 get_palette(video_adapter_t *adp, int base, int count, 2834 u_char *red, u_char *green, u_char *blue, u_char *trans) 2835 { 2836 u_char *r; 2837 u_char *g; 2838 u_char *b; 2839 2840 if ((base < 0) || (base >= 256) || (base + count > 256)) 2841 return EINVAL; 2842 2843 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2844 g = r + count; 2845 b = g + count; 2846 if (vga_save_palette2(adp, base, count, r, g, b)) 2847 return ENODEV; 2848 copyout(r, red, count); 2849 copyout(g, green, count); 2850 copyout(b, blue, count); 2851 if (trans != NULL) { 2852 bzero(r, count); 2853 copyout(r, trans, count); 2854 } 2855 free(r, M_DEVBUF); 2856 2857 return 0; 2858 } 2859 2860 static int 2861 set_palette(video_adapter_t *adp, int base, int count, 2862 u_char *red, u_char *green, u_char *blue, u_char *trans) 2863 { 2864 u_char *r; 2865 u_char *g; 2866 u_char *b; 2867 int err; 2868 2869 if ((base < 0) || (base >= 256) || (base + count > 256)) 2870 return EINVAL; 2871 2872 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2873 g = r + count; 2874 b = g + count; 2875 copyin(red, r, count); 2876 copyin(green, g, count); 2877 copyin(blue, b, count); 2878 err = vga_load_palette2(adp, base, count, r, g, b); 2879 free(r, M_DEVBUF); 2880 2881 return (err ? ENODEV : 0); 2882 } 2883 2884 static int 2885 vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 2886 { 2887 switch (cmd) { 2888 case FBIO_GETWINORG: /* get frame buffer window origin */ 2889 *(u_int *)arg = 0; 2890 return 0; 2891 2892 case FBIO_SETWINORG: /* set frame buffer window origin */ 2893 return ENODEV; 2894 2895 case FBIO_SETDISPSTART: /* set display start address */ 2896 return (set_display_start(adp, 2897 ((video_display_start_t *)arg)->x, 2898 ((video_display_start_t *)arg)->y) 2899 ? ENODEV : 0); 2900 2901 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */ 2902 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0); 2903 2904 case FBIO_GETPALETTE: /* get color palette */ 2905 return get_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 FBIO_SETPALETTE: /* set color palette */ 2913 return set_palette(adp, ((video_color_palette_t *)arg)->index, 2914 ((video_color_palette_t *)arg)->count, 2915 ((video_color_palette_t *)arg)->red, 2916 ((video_color_palette_t *)arg)->green, 2917 ((video_color_palette_t *)arg)->blue, 2918 ((video_color_palette_t *)arg)->transparent); 2919 2920 case FBIOGTYPE: /* get frame buffer type info. */ 2921 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type); 2922 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height; 2923 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width; 2924 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth; 2925 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8)) 2926 ((struct fbtype *)arg)->fb_cmsize = 0; 2927 else 2928 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth; 2929 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size; 2930 return 0; 2931 2932 case FBIOGETCMAP: /* get color palette */ 2933 return get_palette(adp, ((struct fbcmap *)arg)->index, 2934 ((struct fbcmap *)arg)->count, 2935 ((struct fbcmap *)arg)->red, 2936 ((struct fbcmap *)arg)->green, 2937 ((struct fbcmap *)arg)->blue, NULL); 2938 2939 case FBIOPUTCMAP: /* set color palette */ 2940 return set_palette(adp, ((struct fbcmap *)arg)->index, 2941 ((struct fbcmap *)arg)->count, 2942 ((struct fbcmap *)arg)->red, 2943 ((struct fbcmap *)arg)->green, 2944 ((struct fbcmap *)arg)->blue, NULL); 2945 2946 default: 2947 return fb_commonioctl(adp, cmd, arg); 2948 } 2949 } 2950 2951 static void 2952 dump_buffer(u_char *buf, size_t len) 2953 { 2954 int i; 2955 2956 for(i = 0; i < len;) { 2957 printf("%02x ", buf[i]); 2958 if ((++i % 16) == 0) 2959 printf("\n"); 2960 } 2961 } 2962 2963 /* 2964 * diag(): 2965 * Print some information about the video adapter and video modes, 2966 * with requested level of details. 2967 * 2968 * all adapters 2969 */ 2970 static int 2971 vga_diag(video_adapter_t *adp, int level) 2972 { 2973 u_char *mp; 2974 #if FB_DEBUG > 1 2975 video_info_t info; 2976 int i; 2977 #endif 2978 2979 if (!vga_init_done) 2980 return ENXIO; 2981 2982 #if FB_DEBUG > 1 2983 #ifndef VGA_NO_BIOS 2984 printf("vga: RTC equip. code:0x%02x, DCC code:0x%02x\n", 2985 rtcin(RTC_EQUIPMENT), readb(BIOS_PADDRTOVADDR(0x488))); 2986 printf("vga: CRTC:0x%x, video option:0x%02x, ", 2987 readw(BIOS_PADDRTOVADDR(0x463)), 2988 readb(BIOS_PADDRTOVADDR(0x487))); 2989 printf("rows:%d, cols:%d, font height:%d\n", 2990 readb(BIOS_PADDRTOVADDR(0x44a)), 2991 readb(BIOS_PADDRTOVADDR(0x484)) + 1, 2992 readb(BIOS_PADDRTOVADDR(0x485))); 2993 #endif /* VGA_NO_BIOS */ 2994 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 2995 printf("vga: param table EGA/VGA:%p", video_mode_ptr); 2996 printf(", CGA/MDA:%p\n", video_mode_ptr2); 2997 printf("vga: rows_offset:%d\n", rows_offset); 2998 #endif 2999 #endif /* FB_DEBUG > 1 */ 3000 3001 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level); 3002 3003 #if FB_DEBUG > 1 3004 if (adp->va_flags & V_ADP_MODECHANGE) { 3005 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 3006 if (bios_vmode[i].vi_mode == NA) 3007 continue; 3008 if (get_mode_param(bios_vmode[i].vi_mode) == NULL) 3009 continue; 3010 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level); 3011 } 3012 } else { 3013 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */ 3014 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level); 3015 } 3016 #endif /* FB_DEBUG > 1 */ 3017 3018 if ((adp->va_type != KD_EGA) && (adp->va_type != KD_VGA)) 3019 return 0; 3020 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 3021 if (video_mode_ptr == NULL) 3022 printf("vga%d: %s: WARNING: video mode switching is not " 3023 "fully supported on this adapter\n", 3024 adp->va_unit, adp->va_name); 3025 #endif 3026 if (level <= 0) 3027 return 0; 3028 3029 if (adp->va_type == KD_VGA) { 3030 printf("VGA parameters upon power-up\n"); 3031 dump_buffer(adpstate.regs, sizeof(adpstate.regs)); 3032 printf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode); 3033 dump_buffer(adpstate2.regs, sizeof(adpstate2.regs)); 3034 } 3035 3036 mp = get_mode_param(adp->va_initial_mode); 3037 if (mp == NULL) /* this shouldn't be happening */ 3038 return 0; 3039 printf("EGA/VGA parameters to be used for mode %d\n", adp->va_initial_mode); 3040 dump_buffer(mp, V_MODE_PARAM_SIZE); 3041 3042 return 0; 3043 } 3044 3045 #endif /* NVGA > 0 */ 3046