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