1 /*- 2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 3 * Copyright (c) 1992-1998 S�ren Schmidt 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer as 11 * the first lines of this file unmodified. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 * 29 * $FreeBSD: src/sys/dev/fb/vga.c,v 1.9.2.1 2001/08/11 02:58:44 yokota Exp $ 30 * $DragonFly: src/sys/dev/video/fb/vga.c,v 1.7 2004/02/24 19:42:19 joerg Exp $ 31 */ 32 33 #include "opt_vga.h" 34 #include "opt_fb.h" 35 #include "opt_syscons.h" /* should be removed in the future, XXX */ 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/conf.h> 41 #include <sys/proc.h> 42 #include <sys/fcntl.h> 43 #include <sys/malloc.h> 44 #include <sys/fbio.h> 45 46 #include <vm/vm.h> 47 #include <vm/vm_param.h> 48 #include <vm/pmap.h> 49 50 #include <machine/md_var.h> 51 #include <machine/pc/bios.h> 52 53 #include "fbreg.h" 54 #include "vgareg.h" 55 56 #include <bus/isa/isareg.h> 57 58 #ifndef VGA_DEBUG 59 #define VGA_DEBUG 0 60 #endif 61 62 int 63 vga_probe_unit(int unit, video_adapter_t *buf, int flags) 64 { 65 video_adapter_t *adp; 66 video_switch_t *sw; 67 int error; 68 69 sw = vid_get_switch(VGA_DRIVER_NAME); 70 if (sw == NULL) 71 return 0; 72 error = (*sw->probe)(unit, &adp, NULL, flags); 73 if (error) 74 return error; 75 bcopy(adp, buf, sizeof(*buf)); 76 return 0; 77 } 78 79 int 80 vga_attach_unit(int unit, vga_softc_t *sc, int flags) 81 { 82 video_switch_t *sw; 83 int error; 84 85 sw = vid_get_switch(VGA_DRIVER_NAME); 86 if (sw == NULL) 87 return ENXIO; 88 89 error = (*sw->probe)(unit, &sc->adp, NULL, flags); 90 if (error) 91 return error; 92 return (*sw->init)(unit, sc->adp, flags); 93 } 94 95 /* cdev driver functions */ 96 97 #ifdef FB_INSTALL_CDEV 98 99 int 100 vga_open(dev_t dev, vga_softc_t *sc, int flag, int mode, struct thread *td) 101 { 102 if (sc == NULL) 103 return ENXIO; 104 if (mode & (O_CREAT | O_APPEND | O_TRUNC)) 105 return ENODEV; 106 107 return genfbopen(&sc->gensc, sc->adp, flag, mode, td); 108 } 109 110 int 111 vga_close(dev_t dev, vga_softc_t *sc, int flag, int mode, struct thread *td) 112 { 113 return genfbclose(&sc->gensc, sc->adp, flag, mode, td); 114 } 115 116 int 117 vga_read(dev_t dev, vga_softc_t *sc, struct uio *uio, int flag) 118 { 119 return genfbread(&sc->gensc, sc->adp, uio, flag); 120 } 121 122 int 123 vga_write(dev_t dev, vga_softc_t *sc, struct uio *uio, int flag) 124 { 125 return genfbread(&sc->gensc, sc->adp, uio, flag); 126 } 127 128 int 129 vga_ioctl(dev_t dev, vga_softc_t *sc, u_long cmd, caddr_t arg, int flag, 130 struct thread *td) 131 { 132 return genfbioctl(&sc->gensc, sc->adp, cmd, arg, flag, td); 133 } 134 135 int 136 vga_mmap(dev_t dev, vga_softc_t *sc, vm_offset_t offset, int prot) 137 { 138 return genfbmmap(&sc->gensc, sc->adp, offset, prot); 139 } 140 141 #endif /* FB_INSTALL_CDEV */ 142 143 /* LOW-LEVEL */ 144 145 #include <machine/clock.h> 146 #include <machine/pc/vesa.h> 147 148 #define probe_done(adp) ((adp)->va_flags & V_ADP_PROBED) 149 #define init_done(adp) ((adp)->va_flags & V_ADP_INITIALIZED) 150 #define config_done(adp) ((adp)->va_flags & V_ADP_REGISTERED) 151 152 /* for compatibility with old kernel options */ 153 #ifdef SC_ALT_SEQACCESS 154 #undef SC_ALT_SEQACCESS 155 #undef VGA_ALT_SEQACCESS 156 #define VGA_ALT_SEQACCESS 1 157 #endif 158 159 #ifdef SLOW_VGA 160 #undef SLOW_VGA 161 #undef VGA_SLOW_IOACCESS 162 #define VGA_SLOW_IOACCESS 1 163 #endif 164 165 /* architecture dependent option */ 166 #ifdef __alpha__ 167 #define VGA_NO_BIOS 1 168 #endif 169 170 /* this should really be in `rtc.h' */ 171 #define RTC_EQUIPMENT 0x14 172 173 /* various sizes */ 174 #define V_MODE_MAP_SIZE (M_VGA_CG320 + 1) 175 #define V_MODE_PARAM_SIZE 64 176 177 /* video adapter state buffer */ 178 struct adp_state { 179 int sig; 180 #define V_STATE_SIG 0x736f6962 181 u_char regs[V_MODE_PARAM_SIZE]; 182 }; 183 typedef struct adp_state adp_state_t; 184 185 /* video adapter information */ 186 #define DCC_MONO 0 187 #define DCC_CGA40 1 188 #define DCC_CGA80 2 189 #define DCC_EGAMONO 3 190 #define DCC_EGA40 4 191 #define DCC_EGA80 5 192 193 /* 194 * NOTE: `va_window' should have a virtual address, but is initialized 195 * with a physical address in the following table, as verify_adapter() 196 * will perform address conversion at run-time. 197 */ 198 static video_adapter_t adapter_init_value[] = { 199 /* DCC_MONO */ 200 { 0, KD_MONO, "mda", 0, 0, 0, IO_MDA, IO_MDASIZE, MONO_CRTC, 201 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 202 0, 0, 0, 0, 7, 0, }, 203 /* DCC_CGA40 */ 204 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 205 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 206 0, 0, 0, 0, 3, 0, }, 207 /* DCC_CGA80 */ 208 { 0, KD_CGA, "cga", 0, 0, V_ADP_COLOR, IO_CGA, IO_CGASIZE, COLOR_CRTC, 209 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 210 0, 0, 0, 0, 3, 0, }, 211 /* DCC_EGAMONO */ 212 { 0, KD_EGA, "ega", 0, 0, 0, IO_MDA, 48, MONO_CRTC, 213 EGA_BUF_BASE, EGA_BUF_SIZE, MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 214 0, 0, 0, 0, 7, 0, }, 215 /* DCC_EGA40 */ 216 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 217 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 218 0, 0, 0, 0, 3, 0, }, 219 /* DCC_EGA80 */ 220 { 0, KD_EGA, "ega", 0, 0, V_ADP_COLOR, IO_MDA, 48, COLOR_CRTC, 221 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 222 0, 0, 0, 0, 3, 0, }, 223 }; 224 225 static video_adapter_t biosadapter[2]; 226 static int biosadapters = 0; 227 228 /* video driver declarations */ 229 static int vga_configure(int flags); 230 int (*vga_sub_configure)(int flags); 231 #if 0 232 static int vga_nop(void); 233 #endif 234 static int vga_error(void); 235 static vi_probe_t vga_probe; 236 static vi_init_t vga_init; 237 static vi_get_info_t vga_get_info; 238 static vi_query_mode_t vga_query_mode; 239 static vi_set_mode_t vga_set_mode; 240 static vi_save_font_t vga_save_font; 241 static vi_load_font_t vga_load_font; 242 static vi_show_font_t vga_show_font; 243 static vi_save_palette_t vga_save_palette; 244 static vi_load_palette_t vga_load_palette; 245 static vi_set_border_t vga_set_border; 246 static vi_save_state_t vga_save_state; 247 static vi_load_state_t vga_load_state; 248 static vi_set_win_org_t vga_set_origin; 249 static vi_read_hw_cursor_t vga_read_hw_cursor; 250 static vi_set_hw_cursor_t vga_set_hw_cursor; 251 static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape; 252 static vi_blank_display_t vga_blank_display; 253 static vi_mmap_t vga_mmap_buf; 254 static vi_ioctl_t vga_dev_ioctl; 255 #ifndef VGA_NO_MODE_CHANGE 256 static vi_clear_t vga_clear; 257 static vi_fill_rect_t vga_fill_rect; 258 static vi_bitblt_t vga_bitblt; 259 #else /* VGA_NO_MODE_CHANGE */ 260 #define vga_clear (vi_clear_t *)vga_error 261 #define vga_fill_rect (vi_fill_rect_t *)vga_error 262 #define vga_bitblt (vi_bitblt_t *)vga_error 263 #endif 264 static vi_diag_t vga_diag; 265 266 static video_switch_t vgavidsw = { 267 vga_probe, 268 vga_init, 269 vga_get_info, 270 vga_query_mode, 271 vga_set_mode, 272 vga_save_font, 273 vga_load_font, 274 vga_show_font, 275 vga_save_palette, 276 vga_load_palette, 277 vga_set_border, 278 vga_save_state, 279 vga_load_state, 280 vga_set_origin, 281 vga_read_hw_cursor, 282 vga_set_hw_cursor, 283 vga_set_hw_cursor_shape, 284 vga_blank_display, 285 vga_mmap_buf, 286 vga_dev_ioctl, 287 vga_clear, 288 vga_fill_rect, 289 vga_bitblt, 290 vga_error, 291 vga_error, 292 vga_diag, 293 }; 294 295 VIDEO_DRIVER(mda, vgavidsw, NULL); 296 VIDEO_DRIVER(cga, vgavidsw, NULL); 297 VIDEO_DRIVER(ega, vgavidsw, NULL); 298 VIDEO_DRIVER(vga, vgavidsw, vga_configure); 299 300 /* VGA BIOS standard video modes */ 301 #define EOT (-1) 302 #define NA (-2) 303 304 static video_info_t bios_vmode[] = { 305 /* CGA */ 306 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1, 307 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 308 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1, 309 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 310 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1, 311 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 312 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1, 313 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 314 /* EGA */ 315 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1, 316 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 317 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1, 318 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 319 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1, 320 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 321 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1, 322 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 323 /* VGA */ 324 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1, 325 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 326 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1, 327 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 328 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1, 329 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 330 /* MDA */ 331 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1, 332 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 333 /* EGA */ 334 { M_ENH_B80x43, 0, 80, 43, 8, 8, 2, 1, 335 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 336 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1, 337 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 338 /* VGA */ 339 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1, 340 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 341 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1, 342 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 343 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1, 344 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 345 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1, 346 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 347 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1, 348 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 349 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1, 350 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 351 352 #ifndef VGA_NO_MODE_CHANGE 353 354 #ifdef VGA_WIDTH90 355 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1, 356 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 357 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1, 358 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 359 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1, 360 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 361 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1, 362 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 363 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1, 364 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 365 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1, 366 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 367 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1, 368 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 369 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1, 370 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 371 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1, 372 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 373 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1, 374 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 375 #endif /* VGA_WIDTH90 */ 376 377 /* CGA */ 378 { M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 379 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 380 { M_CG320, 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_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1, 383 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 384 /* EGA */ 385 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4, 386 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 387 V_INFO_MM_PLANAR }, 388 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4, 389 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 390 V_INFO_MM_PLANAR }, 391 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 392 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 , 393 V_INFO_MM_PLANAR }, 394 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 395 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 396 V_INFO_MM_PLANAR }, 397 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2, 398 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 399 V_INFO_MM_PLANAR }, 400 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 401 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 402 V_INFO_MM_PLANAR }, 403 /* VGA */ 404 { M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 405 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 406 V_INFO_MM_PLANAR }, 407 { M_CG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 408 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 409 V_INFO_MM_PLANAR }, 410 { M_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1, 411 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 412 V_INFO_MM_PACKED, 1 }, 413 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 4, 414 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 415 V_INFO_MM_VGAX, 1 }, 416 #endif /* VGA_NO_MODE_CHANGE */ 417 418 { EOT }, 419 }; 420 421 static int vga_init_done = FALSE; 422 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 423 static u_char *video_mode_ptr = NULL; /* EGA/VGA */ 424 static u_char *video_mode_ptr2 = NULL; /* CGA/MDA */ 425 #endif 426 static u_char *mode_map[V_MODE_MAP_SIZE]; 427 static adp_state_t adpstate; 428 static adp_state_t adpstate2; 429 static int rows_offset = 1; 430 431 /* local macros and functions */ 432 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 433 434 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 435 static void map_mode_table(u_char *map[], u_char *table, int max); 436 #endif 437 static void clear_mode_map(video_adapter_t *adp, u_char *map[], int max, 438 int color); 439 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 440 static int map_mode_num(int mode); 441 #endif 442 static int map_gen_mode_num(int type, int color, int mode); 443 static int map_bios_mode_num(int type, int color, int bios_mode); 444 static u_char *get_mode_param(int mode); 445 #ifndef VGA_NO_BIOS 446 static void fill_adapter_param(int code, video_adapter_t *adp); 447 #endif 448 static int verify_adapter(video_adapter_t *adp); 449 static void update_adapter_info(video_adapter_t *adp, video_info_t *info); 450 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 451 #define COMP_IDENTICAL 0 452 #define COMP_SIMILAR 1 453 #define COMP_DIFFERENT 2 454 static int comp_adpregs(u_char *buf1, u_char *buf2); 455 #endif 456 static int probe_adapters(void); 457 static int set_line_length(video_adapter_t *adp, int pixel); 458 static int set_display_start(video_adapter_t *adp, int x, int y); 459 460 #ifndef VGA_NO_MODE_CHANGE 461 static void filll_io(int val, vm_offset_t d, size_t size); 462 #endif 463 464 #ifndef VGA_NO_MODE_CHANGE 465 #ifdef VGA_WIDTH90 466 static void set_width90(adp_state_t *params); 467 #endif 468 #endif /* !VGA_NO_MODE_CHANGE */ 469 470 #ifndef VGA_NO_FONT_LOADING 471 #define PARAM_BUFSIZE 6 472 static void set_font_mode(video_adapter_t *adp, u_char *buf); 473 static void set_normal_mode(video_adapter_t *adp, u_char *buf); 474 #endif 475 476 #ifndef VGA_NO_MODE_CHANGE 477 static void planar_fill(video_adapter_t *adp, int val); 478 static void packed_fill(video_adapter_t *adp, int val); 479 static void direct_fill(video_adapter_t *adp, int val); 480 #ifdef notyet 481 static void planar_fill_rect(video_adapter_t *adp, int val, int x, int y, 482 int cx, int cy); 483 static void packed_fill_rect(video_adapter_t *adp, int val, int x, int y, 484 int cx, int cy); 485 static void direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, 486 int cx, int cy); 487 static void direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, 488 int cx, int cy); 489 static void direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, 490 int cx, int cy); 491 #endif /* notyet */ 492 #endif /* !VGA_NO_MODE_CHANGE */ 493 494 static void dump_buffer(u_char *buf, size_t len); 495 496 #define ISMAPPED(pa, width) \ 497 (((pa) <= (u_long)0x1000 - (width)) \ 498 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width))) 499 500 #define prologue(adp, flag, err) \ 501 if (!vga_init_done || !((adp)->va_flags & (flag))) \ 502 return (err) 503 504 /* a backdoor for the console driver */ 505 static int 506 vga_configure(int flags) 507 { 508 int i; 509 510 probe_adapters(); 511 for (i = 0; i < biosadapters; ++i) { 512 if (!probe_done(&biosadapter[i])) 513 continue; 514 biosadapter[i].va_flags |= V_ADP_INITIALIZED; 515 if (!config_done(&biosadapter[i])) { 516 if (vid_register(&biosadapter[i]) < 0) 517 continue; 518 biosadapter[i].va_flags |= V_ADP_REGISTERED; 519 } 520 } 521 if (vga_sub_configure != NULL) 522 (*vga_sub_configure)(flags); 523 524 return biosadapters; 525 } 526 527 /* local subroutines */ 528 529 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 530 /* construct the mode parameter map */ 531 static void 532 map_mode_table(u_char *map[], u_char *table, int max) 533 { 534 int i; 535 536 for(i = 0; i < max; ++i) 537 map[i] = table + i*V_MODE_PARAM_SIZE; 538 for(; i < V_MODE_MAP_SIZE; ++i) 539 map[i] = NULL; 540 } 541 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 542 543 static void 544 clear_mode_map(video_adapter_t *adp, u_char *map[], int max, int color) 545 { 546 video_info_t info; 547 int i; 548 549 /* 550 * NOTE: we don't touch `bios_vmode[]' because it is shared 551 * by all adapters. 552 */ 553 for(i = 0; i < max; ++i) { 554 if (vga_get_info(adp, i, &info)) 555 continue; 556 if ((info.vi_flags & V_INFO_COLOR) != color) 557 map[i] = NULL; 558 } 559 } 560 561 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 562 /* map the non-standard video mode to a known mode number */ 563 static int 564 map_mode_num(int mode) 565 { 566 static struct { 567 int from; 568 int to; 569 } mode_map[] = { 570 { M_ENH_B80x43, M_ENH_B80x25 }, 571 { M_ENH_C80x43, M_ENH_C80x25 }, 572 { M_VGA_M80x30, M_VGA_M80x25 }, 573 { M_VGA_C80x30, M_VGA_C80x25 }, 574 { M_VGA_M80x50, M_VGA_M80x25 }, 575 { M_VGA_C80x50, M_VGA_C80x25 }, 576 { M_VGA_M80x60, M_VGA_M80x25 }, 577 { M_VGA_C80x60, M_VGA_C80x25 }, 578 #ifdef VGA_WIDTH90 579 { M_VGA_M90x25, M_VGA_M80x25 }, 580 { M_VGA_C90x25, M_VGA_C80x25 }, 581 { M_VGA_M90x30, M_VGA_M80x25 }, 582 { M_VGA_C90x30, M_VGA_C80x25 }, 583 { M_VGA_M90x43, M_ENH_B80x25 }, 584 { M_VGA_C90x43, M_ENH_C80x25 }, 585 { M_VGA_M90x50, M_VGA_M80x25 }, 586 { M_VGA_C90x50, M_VGA_C80x25 }, 587 { M_VGA_M90x60, M_VGA_M80x25 }, 588 { M_VGA_C90x60, M_VGA_C80x25 }, 589 #endif 590 { M_VGA_MODEX, M_VGA_CG320 }, 591 }; 592 int i; 593 594 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 595 if (mode_map[i].from == mode) 596 return mode_map[i].to; 597 } 598 return mode; 599 } 600 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 601 602 /* map a generic video mode to a known mode number */ 603 static int 604 map_gen_mode_num(int type, int color, int mode) 605 { 606 static struct { 607 int from; 608 int to_color; 609 int to_mono; 610 } mode_map[] = { 611 { M_TEXT_80x30, M_VGA_C80x30, M_VGA_M80x30, }, 612 { M_TEXT_80x43, M_ENH_C80x43, M_ENH_B80x43, }, 613 { M_TEXT_80x50, M_VGA_C80x50, M_VGA_M80x50, }, 614 { M_TEXT_80x60, M_VGA_C80x60, M_VGA_M80x60, }, 615 }; 616 int i; 617 618 if (mode == M_TEXT_80x25) { 619 switch (type) { 620 621 case KD_VGA: 622 if (color) 623 return M_VGA_C80x25; 624 else 625 return M_VGA_M80x25; 626 break; 627 628 case KD_EGA: 629 if (color) 630 return M_ENH_C80x25; 631 else 632 return M_EGAMONO80x25; 633 break; 634 635 case KD_CGA: 636 return M_C80x25; 637 638 case KD_MONO: 639 case KD_HERCULES: 640 return M_EGAMONO80x25; /* XXX: this name is confusing */ 641 642 default: 643 return -1; 644 } 645 } 646 647 for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 648 if (mode_map[i].from == mode) 649 return ((color) ? mode_map[i].to_color : mode_map[i].to_mono); 650 } 651 return mode; 652 } 653 654 /* turn the BIOS video number into our video mode number */ 655 static int 656 map_bios_mode_num(int type, int color, int bios_mode) 657 { 658 static int cga_modes[7] = { 659 M_B40x25, M_C40x25, /* 0, 1 */ 660 M_B80x25, M_C80x25, /* 2, 3 */ 661 M_BG320, M_CG320, 662 M_BG640, 663 }; 664 static int ega_modes[17] = { 665 M_ENH_B40x25, M_ENH_C40x25, /* 0, 1 */ 666 M_ENH_B80x25, M_ENH_C80x25, /* 2, 3 */ 667 M_BG320, M_CG320, 668 M_BG640, 669 M_EGAMONO80x25, /* 7 */ 670 8, 9, 10, 11, 12, 671 M_CG320_D, 672 M_CG640_E, 673 M_ENHMONOAPA2, /* XXX: video momery > 64K */ 674 M_ENH_CG640, /* XXX: video momery > 64K */ 675 }; 676 static int vga_modes[20] = { 677 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */ 678 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */ 679 M_BG320, M_CG320, 680 M_BG640, 681 M_VGA_M80x25, /* 7 */ 682 8, 9, 10, 11, 12, 683 M_CG320_D, 684 M_CG640_E, 685 M_ENHMONOAPA2, 686 M_ENH_CG640, 687 M_BG640x480, M_CG640x480, 688 M_VGA_CG320, 689 }; 690 691 switch (type) { 692 693 case KD_VGA: 694 if (bios_mode < sizeof(vga_modes)/sizeof(vga_modes[0])) 695 return vga_modes[bios_mode]; 696 else if (color) 697 return M_VGA_C80x25; 698 else 699 return M_VGA_M80x25; 700 break; 701 702 case KD_EGA: 703 if (bios_mode < sizeof(ega_modes)/sizeof(ega_modes[0])) 704 return ega_modes[bios_mode]; 705 else if (color) 706 return M_ENH_C80x25; 707 else 708 return M_EGAMONO80x25; 709 break; 710 711 case KD_CGA: 712 if (bios_mode < sizeof(cga_modes)/sizeof(cga_modes[0])) 713 return cga_modes[bios_mode]; 714 else 715 return M_C80x25; 716 break; 717 718 case KD_MONO: 719 case KD_HERCULES: 720 return M_EGAMONO80x25; /* XXX: this name is confusing */ 721 722 default: 723 break; 724 } 725 return -1; 726 } 727 728 /* look up a parameter table entry */ 729 static u_char 730 *get_mode_param(int mode) 731 { 732 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 733 if (mode >= V_MODE_MAP_SIZE) 734 mode = map_mode_num(mode); 735 #endif 736 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE)) 737 return mode_map[mode]; 738 else 739 return NULL; 740 } 741 742 #ifndef VGA_NO_BIOS 743 static void 744 fill_adapter_param(int code, video_adapter_t *adp) 745 { 746 static struct { 747 int primary; 748 int secondary; 749 } dcc[] = { 750 { DCC_MONO, DCC_EGA40 /* CGA monitor */ }, 751 { DCC_MONO, DCC_EGA80 /* CGA monitor */ }, 752 { DCC_MONO, DCC_EGA80 }, 753 { DCC_MONO, DCC_EGA80 }, 754 { DCC_CGA40, DCC_EGAMONO }, 755 { DCC_CGA80, DCC_EGAMONO }, 756 { DCC_EGA40 /* CGA monitor */, DCC_MONO}, 757 { DCC_EGA80 /* CGA monitor */, DCC_MONO}, 758 { DCC_EGA80, DCC_MONO }, 759 { DCC_EGA80, DCC_MONO }, 760 { DCC_EGAMONO, DCC_CGA40 }, 761 { DCC_EGAMONO, DCC_CGA80 }, 762 }; 763 764 if ((code < 0) || (code >= sizeof(dcc)/sizeof(dcc[0]))) { 765 adp[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 766 adp[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 767 } else { 768 adp[V_ADP_PRIMARY] = adapter_init_value[dcc[code].primary]; 769 adp[V_ADP_SECONDARY] = adapter_init_value[dcc[code].secondary]; 770 } 771 } 772 #endif /* VGA_NO_BIOS */ 773 774 static int 775 verify_adapter(video_adapter_t *adp) 776 { 777 vm_offset_t buf; 778 u_int16_t v; 779 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 780 u_int32_t p; 781 #endif 782 783 buf = BIOS_PADDRTOVADDR(adp->va_window); 784 v = readw(buf); 785 writew(buf, 0xA55A); 786 if (readw(buf) != 0xA55A) 787 return ENXIO; 788 writew(buf, v); 789 790 switch (adp->va_type) { 791 792 case KD_EGA: 793 outb(adp->va_crtc_addr, 7); 794 if (inb(adp->va_crtc_addr) == 7) { 795 adp->va_type = KD_VGA; 796 adp->va_name = "vga"; 797 adp->va_flags |= V_ADP_STATESAVE | V_ADP_PALETTE; 798 } 799 adp->va_flags |= V_ADP_STATELOAD | V_ADP_BORDER; 800 /* the color adapter may be in the 40x25 mode... XXX */ 801 802 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 803 /* get the BIOS video mode pointer */ 804 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8); 805 p = BIOS_SADDRTOLADDR(p); 806 if (ISMAPPED(p, sizeof(u_int32_t))) { 807 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p); 808 p = BIOS_SADDRTOLADDR(p); 809 if (ISMAPPED(p, V_MODE_PARAM_SIZE)) 810 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p); 811 } 812 #endif 813 break; 814 815 case KD_CGA: 816 adp->va_flags |= V_ADP_COLOR | V_ADP_BORDER; 817 /* may be in the 40x25 mode... XXX */ 818 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 819 /* get the BIOS video mode pointer */ 820 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 821 p = BIOS_SADDRTOLADDR(p); 822 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 823 #endif 824 break; 825 826 case KD_MONO: 827 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 828 /* get the BIOS video mode pointer */ 829 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x1d*4); 830 p = BIOS_SADDRTOLADDR(p); 831 video_mode_ptr2 = (u_char *)BIOS_PADDRTOVADDR(p); 832 #endif 833 break; 834 } 835 836 return 0; 837 } 838 839 static void 840 update_adapter_info(video_adapter_t *adp, video_info_t *info) 841 { 842 adp->va_flags &= ~V_ADP_COLOR; 843 adp->va_flags |= 844 (info->vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; 845 adp->va_crtc_addr = 846 (adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; 847 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window); 848 adp->va_window_size = info->vi_window_size; 849 adp->va_window_gran = info->vi_window_gran; 850 adp->va_window_orig = 0; 851 /* XXX */ 852 adp->va_buffer = info->vi_buffer; 853 adp->va_buffer_size = info->vi_buffer_size; 854 if (info->vi_mem_model == V_INFO_MM_VGAX) { 855 adp->va_line_width = info->vi_width/2; 856 } else if (info->vi_flags & V_INFO_GRAPHICS) { 857 switch (info->vi_depth/info->vi_planes) { 858 case 1: 859 adp->va_line_width = info->vi_width/8; 860 break; 861 case 2: 862 adp->va_line_width = info->vi_width/4; 863 break; 864 case 4: 865 adp->va_line_width = info->vi_width/2; 866 break; 867 case 8: 868 default: /* shouldn't happen */ 869 adp->va_line_width = info->vi_width; 870 break; 871 } 872 } else { 873 adp->va_line_width = info->vi_width; 874 } 875 adp->va_disp_start.x = 0; 876 adp->va_disp_start.y = 0; 877 bcopy(info, &adp->va_info, sizeof(adp->va_info)); 878 } 879 880 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 881 /* compare two parameter table entries */ 882 static int 883 comp_adpregs(u_char *buf1, u_char *buf2) 884 { 885 static struct { 886 u_char mask; 887 } params[V_MODE_PARAM_SIZE] = { 888 {0xff}, {0x00}, {0xff}, /* COLS}, ROWS}, POINTS */ 889 {0x00}, {0x00}, /* page length */ 890 {0xfe}, {0xff}, {0xff}, {0xff}, /* sequencer registers */ 891 {0xf3}, /* misc register */ 892 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, /* CRTC */ 893 {0xff}, {0xff}, {0xff}, {0x7f}, {0xff}, 894 {0x00}, {0x00}, {0x00}, {0x00}, {0x00}, 895 {0x00}, {0xff}, {0x7f}, {0xff}, {0xff}, 896 {0x7f}, {0xff}, {0xff}, {0xef}, {0xff}, 897 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* attribute controller regs */ 898 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 899 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, 900 {0xff}, {0xff}, {0xff}, {0xff}, {0xf0}, 901 {0xff}, {0xff}, {0xff}, {0xff}, {0xff}, /* GDC register */ 902 {0xff}, {0xff}, {0xff}, {0xff}, 903 }; 904 int identical = TRUE; 905 int i; 906 907 if ((buf1 == NULL) || (buf2 == NULL)) 908 return COMP_DIFFERENT; 909 910 for (i = 0; i < sizeof(params)/sizeof(params[0]); ++i) { 911 if (params[i].mask == 0) /* don't care */ 912 continue; 913 if ((buf1[i] & params[i].mask) != (buf2[i] & params[i].mask)) 914 return COMP_DIFFERENT; 915 if (buf1[i] != buf2[i]) 916 identical = FALSE; 917 } 918 return (identical) ? COMP_IDENTICAL : COMP_SIMILAR; 919 } 920 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 921 922 /* probe video adapters and return the number of detected adapters */ 923 static int 924 probe_adapters(void) 925 { 926 video_adapter_t *adp; 927 video_info_t info; 928 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 929 u_char *mp; 930 #endif 931 int i; 932 933 /* do this test only once */ 934 if (vga_init_done) 935 return biosadapters; 936 vga_init_done = TRUE; 937 938 /* 939 * Locate display adapters. 940 * The AT architecture supports upto two adapters. `syscons' allows 941 * the following combinations of adapters: 942 * 1) MDA + CGA 943 * 2) MDA + EGA/VGA color 944 * 3) CGA + EGA/VGA mono 945 * Note that `syscons' doesn't bother with MCGA as it is only 946 * avaiable for low end PS/2 models which has 80286 or earlier CPUs, 947 * thus, they are not running FreeBSD! 948 * When there are two adapaters in the system, one becomes `primary' 949 * and the other `secondary'. The EGA adapter has a set of DIP 950 * switches on board for this information and the EGA BIOS copies 951 * it in the BIOS data area BIOSDATA_VIDEOSWITCH (40:88). 952 * The VGA BIOS has more sophisticated mechanism and has this 953 * information in BIOSDATA_DCCINDEX (40:8a), but it also maintains 954 * compatibility with the EGA BIOS by updating BIOSDATA_VIDEOSWITCH. 955 */ 956 957 /* 958 * Check rtc and BIOS data area. 959 * XXX: we don't use BIOSDATA_EQUIPMENT, since it is not a dead 960 * copy of RTC_EQUIPMENT. Bits 4 and 5 of ETC_EQUIPMENT are 961 * zeros for EGA and VGA. However, the EGA/VGA BIOS sets 962 * these bits in BIOSDATA_EQUIPMENT according to the monitor 963 * type detected. 964 */ 965 #ifndef VGA_NO_BIOS 966 if (*(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8)) { 967 /* EGA/VGA BIOS is present */ 968 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 969 biosadapter); 970 } else { 971 switch ((rtcin(RTC_EQUIPMENT) >> 4) & 3) { /* bit 4 and 5 */ 972 case 0: 973 /* EGA/VGA: shouldn't be happening */ 974 fill_adapter_param(readb(BIOS_PADDRTOVADDR(0x488)) & 0x0f, 975 biosadapter); 976 break; 977 case 1: 978 /* CGA 40x25 */ 979 /* FIXME: switch to the 80x25 mode? XXX */ 980 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA40]; 981 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 982 break; 983 case 2: 984 /* CGA 80x25 */ 985 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_CGA80]; 986 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 987 break; 988 case 3: 989 /* MDA */ 990 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_MONO]; 991 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_CGA80]; 992 break; 993 } 994 } 995 #else 996 /* assume EGA/VGA? XXX */ 997 biosadapter[V_ADP_PRIMARY] = adapter_init_value[DCC_EGA80]; 998 biosadapter[V_ADP_SECONDARY] = adapter_init_value[DCC_MONO]; 999 #endif /* VGA_NO_BIOS */ 1000 1001 biosadapters = 0; 1002 if (verify_adapter(&biosadapter[V_ADP_SECONDARY]) == 0) { 1003 ++biosadapters; 1004 biosadapter[V_ADP_SECONDARY].va_flags |= V_ADP_PROBED; 1005 biosadapter[V_ADP_SECONDARY].va_mode = 1006 biosadapter[V_ADP_SECONDARY].va_initial_mode = 1007 map_bios_mode_num(biosadapter[V_ADP_SECONDARY].va_type, 1008 biosadapter[V_ADP_SECONDARY].va_flags 1009 & V_ADP_COLOR, 1010 biosadapter[V_ADP_SECONDARY].va_initial_bios_mode); 1011 } else { 1012 biosadapter[V_ADP_SECONDARY].va_type = -1; 1013 } 1014 if (verify_adapter(&biosadapter[V_ADP_PRIMARY]) == 0) { 1015 ++biosadapters; 1016 biosadapter[V_ADP_PRIMARY].va_flags |= V_ADP_PROBED; 1017 #ifndef VGA_NO_BIOS 1018 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 1019 readb(BIOS_PADDRTOVADDR(0x449)); 1020 #else 1021 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode = 3; /* XXX */ 1022 #endif 1023 biosadapter[V_ADP_PRIMARY].va_mode = 1024 biosadapter[V_ADP_PRIMARY].va_initial_mode = 1025 map_bios_mode_num(biosadapter[V_ADP_PRIMARY].va_type, 1026 biosadapter[V_ADP_PRIMARY].va_flags & V_ADP_COLOR, 1027 biosadapter[V_ADP_PRIMARY].va_initial_bios_mode); 1028 } else { 1029 biosadapter[V_ADP_PRIMARY] = biosadapter[V_ADP_SECONDARY]; 1030 biosadapter[V_ADP_SECONDARY].va_type = -1; 1031 } 1032 if (biosadapters == 0) 1033 return biosadapters; 1034 biosadapter[V_ADP_PRIMARY].va_unit = V_ADP_PRIMARY; 1035 biosadapter[V_ADP_SECONDARY].va_unit = V_ADP_SECONDARY; 1036 1037 #if 0 /* we don't need these... */ 1038 fb_init_struct(&biosadapter[V_ADP_PRIMARY], ...); 1039 fb_init_struct(&biosadapter[V_ADP_SECONDARY], ...); 1040 #endif 1041 1042 #if notyet 1043 /* 1044 * We cannot have two video adapter of the same type; there must be 1045 * only one of color or mono adapter, or one each of them. 1046 */ 1047 if (biosadapters > 1) { 1048 if (!((biosadapter[0].va_flags ^ biosadapter[1].va_flags) 1049 & V_ADP_COLOR)) 1050 /* we have two mono or color adapters!! */ 1051 return (biosadapters = 0); 1052 } 1053 #endif 1054 1055 /* 1056 * Ensure a zero start address. This is mainly to recover after 1057 * switching from pcvt using userconfig(). The registers are w/o 1058 * for old hardware so it's too hard to relocate the active screen 1059 * memory. 1060 * This must be done before vga_save_state() for VGA. 1061 */ 1062 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 12); 1063 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1064 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr, 13); 1065 outb(biosadapter[V_ADP_PRIMARY].va_crtc_addr + 1, 0); 1066 1067 /* the video mode parameter table in EGA/VGA BIOS */ 1068 /* NOTE: there can be only one EGA/VGA, wheather color or mono, 1069 * recognized by the video BIOS. 1070 */ 1071 if ((biosadapter[V_ADP_PRIMARY].va_type == KD_EGA) || 1072 (biosadapter[V_ADP_PRIMARY].va_type == KD_VGA)) { 1073 adp = &biosadapter[V_ADP_PRIMARY]; 1074 } else if ((biosadapter[V_ADP_SECONDARY].va_type == KD_EGA) || 1075 (biosadapter[V_ADP_SECONDARY].va_type == KD_VGA)) { 1076 adp = &biosadapter[V_ADP_SECONDARY]; 1077 } else { 1078 adp = NULL; 1079 } 1080 bzero(mode_map, sizeof(mode_map)); 1081 if (adp != NULL) { 1082 if (adp->va_type == KD_VGA) { 1083 vga_save_state(adp, &adpstate, sizeof(adpstate)); 1084 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1085 mode_map[adp->va_initial_mode] = adpstate.regs; 1086 rows_offset = 1; 1087 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1088 if (video_mode_ptr == NULL) { 1089 mode_map[adp->va_initial_mode] = adpstate.regs; 1090 rows_offset = 1; 1091 } else { 1092 /* discard the table if we are not familiar with it... */ 1093 map_mode_table(mode_map, video_mode_ptr, M_VGA_CG320 + 1); 1094 mp = get_mode_param(adp->va_initial_mode); 1095 if (mp != NULL) 1096 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs)); 1097 switch (comp_adpregs(adpstate.regs, mp)) { 1098 case COMP_IDENTICAL: 1099 /* 1100 * OK, this parameter table looks reasonably familiar 1101 * to us... 1102 */ 1103 /* 1104 * This is a kludge for Toshiba DynaBook SS433 1105 * whose BIOS video mode table entry has the actual # 1106 * of rows at the offset 1; BIOSes from other 1107 * manufacturers store the # of rows - 1 there. XXX 1108 */ 1109 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1110 break; 1111 1112 case COMP_SIMILAR: 1113 /* 1114 * Not exactly the same, but similar enough to be 1115 * trusted. However, use the saved register values 1116 * for the initial mode and other modes which are 1117 * based on the initial mode. 1118 */ 1119 mode_map[adp->va_initial_mode] = adpstate.regs; 1120 rows_offset = adpstate.regs[1] + 1 - mp[1]; 1121 adpstate.regs[1] -= rows_offset - 1; 1122 break; 1123 1124 case COMP_DIFFERENT: 1125 default: 1126 /* 1127 * Don't use the paramter table in BIOS. It doesn't 1128 * look familiar to us. Video mode switching is allowed 1129 * only if the new mode is the same as or based on 1130 * the initial mode. 1131 */ 1132 video_mode_ptr = NULL; 1133 bzero(mode_map, sizeof(mode_map)); 1134 mode_map[adp->va_initial_mode] = adpstate.regs; 1135 rows_offset = 1; 1136 break; 1137 } 1138 } 1139 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1140 1141 #ifndef VGA_NO_MODE_CHANGE 1142 adp->va_flags |= V_ADP_MODECHANGE; 1143 #endif 1144 #ifndef VGA_NO_FONT_LOADING 1145 adp->va_flags |= V_ADP_FONT; 1146 #endif 1147 } else if (adp->va_type == KD_EGA) { 1148 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 1149 rows_offset = 1; 1150 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1151 if (video_mode_ptr == NULL) { 1152 rows_offset = 1; 1153 } else { 1154 map_mode_table(mode_map, video_mode_ptr, M_ENH_C80x25 + 1); 1155 /* XXX how can one validate the EGA table... */ 1156 mp = get_mode_param(adp->va_initial_mode); 1157 if (mp != NULL) { 1158 adp->va_flags |= V_ADP_MODECHANGE; 1159 #ifndef VGA_NO_FONT_LOADING 1160 adp->va_flags |= V_ADP_FONT; 1161 #endif 1162 rows_offset = 1; 1163 } else { 1164 /* 1165 * This is serious. We will not be able to switch video 1166 * modes at all... 1167 */ 1168 video_mode_ptr = NULL; 1169 bzero(mode_map, sizeof(mode_map)); 1170 rows_offset = 1; 1171 } 1172 } 1173 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 1174 } 1175 } 1176 1177 /* remove conflicting modes if we have more than one adapter */ 1178 if (biosadapters > 0) { 1179 for (i = 0; i < biosadapters; ++i) { 1180 if (!(biosadapter[i].va_flags & V_ADP_MODECHANGE)) 1181 continue; 1182 clear_mode_map(&biosadapter[i], mode_map, M_VGA_CG320 + 1, 1183 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1184 V_INFO_COLOR : 0); 1185 if ((biosadapter[i].va_type == KD_VGA) 1186 || (biosadapter[i].va_type == KD_EGA)) { 1187 biosadapter[i].va_io_base = 1188 (biosadapter[i].va_flags & V_ADP_COLOR) ? 1189 IO_VGA : IO_MDA; 1190 biosadapter[i].va_io_size = 32; 1191 } 1192 } 1193 } 1194 1195 /* buffer address */ 1196 vga_get_info(&biosadapter[V_ADP_PRIMARY], 1197 biosadapter[V_ADP_PRIMARY].va_initial_mode, &info); 1198 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1199 update_adapter_info(&biosadapter[V_ADP_PRIMARY], &info); 1200 1201 if (biosadapters > 1) { 1202 vga_get_info(&biosadapter[V_ADP_SECONDARY], 1203 biosadapter[V_ADP_SECONDARY].va_initial_mode, &info); 1204 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1205 update_adapter_info(&biosadapter[V_ADP_SECONDARY], &info); 1206 } 1207 1208 /* 1209 * XXX: we should verify the following values for the primary adapter... 1210 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463); 1211 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02) 1212 * ? 0 : V_ADP_COLOR; 1213 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a); 1214 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484); 1215 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485); 1216 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c); 1217 */ 1218 1219 return biosadapters; 1220 } 1221 1222 /* set the scan line length in pixel */ 1223 static int 1224 set_line_length(video_adapter_t *adp, int pixel) 1225 { 1226 u_char *mp; 1227 int ppw; /* pixels per word */ 1228 int bpl; /* bytes per line */ 1229 int count; 1230 1231 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1232 return ENODEV; 1233 mp = get_mode_param(adp->va_mode); 1234 if (mp == NULL) 1235 return EINVAL; 1236 1237 switch (adp->va_info.vi_mem_model) { 1238 case V_INFO_MM_PLANAR: 1239 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1240 count = (pixel + ppw - 1)/ppw/2; 1241 bpl = ((pixel + ppw - 1)/ppw/2)*4; 1242 break; 1243 case V_INFO_MM_PACKED: 1244 count = (pixel + 7)/8; 1245 bpl = ((pixel + 7)/8)*8; 1246 break; 1247 case V_INFO_MM_TEXT: 1248 count = (pixel + 7)/8; /* columns */ 1249 bpl = (pixel + 7)/8; /* columns */ 1250 break; 1251 default: 1252 return ENODEV; 1253 } 1254 1255 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */ 1256 count *= 2; /* byte mode */ 1257 outb(adp->va_crtc_addr, 0x13); 1258 outb(adp->va_crtc_addr + 1, count); 1259 adp->va_line_width = bpl; 1260 1261 return 0; 1262 } 1263 1264 static int 1265 set_display_start(video_adapter_t *adp, int x, int y) 1266 { 1267 int off; /* byte offset (graphics mode)/word offset (text mode) */ 1268 int poff; /* pixel offset */ 1269 int roff; /* row offset */ 1270 int ppb; /* pixels per byte */ 1271 1272 if ((adp->va_type != KD_VGA) && (adp->va_type != KD_EGA)) 1273 x &= ~7; 1274 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) { 1275 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes); 1276 off = y*adp->va_line_width + x/ppb; 1277 roff = 0; 1278 poff = x%ppb; 1279 } else { 1280 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1281 outb(TSIDX, 1); 1282 if (inb(TSREG) & 1) 1283 ppb = 9; 1284 else 1285 ppb = 8; 1286 } else { 1287 ppb = 8; 1288 } 1289 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb; 1290 roff = y%adp->va_info.vi_cheight; 1291 /* FIXME: is this correct? XXX */ 1292 if (ppb == 8) 1293 poff = x%ppb; 1294 else 1295 poff = (x + 8)%ppb; 1296 } 1297 1298 /* start address */ 1299 outb(adp->va_crtc_addr, 0xc); /* high */ 1300 outb(adp->va_crtc_addr + 1, off >> 8); 1301 outb(adp->va_crtc_addr, 0xd); /* low */ 1302 outb(adp->va_crtc_addr + 1, off & 0xff); 1303 1304 /* horizontal pel pan */ 1305 if ((adp->va_type == KD_VGA) || (adp->va_type == KD_EGA)) { 1306 inb(adp->va_crtc_addr + 6); 1307 outb(ATC, 0x13 | 0x20); 1308 outb(ATC, poff); 1309 inb(adp->va_crtc_addr + 6); 1310 outb(ATC, 0x20); 1311 } 1312 1313 /* preset raw scan */ 1314 outb(adp->va_crtc_addr, 8); 1315 outb(adp->va_crtc_addr + 1, roff); 1316 1317 adp->va_disp_start.x = x; 1318 adp->va_disp_start.y = y; 1319 return 0; 1320 } 1321 1322 #ifndef VGA_NO_MODE_CHANGE 1323 #ifdef __i386__ /* XXX */ 1324 static void 1325 fill(int val, void *d, size_t size) 1326 { 1327 u_char *p = d; 1328 1329 while (size-- > 0) 1330 *p++ = val; 1331 } 1332 #endif /* __i386__ */ 1333 1334 static void 1335 filll_io(int val, vm_offset_t d, size_t size) 1336 { 1337 while (size-- > 0) { 1338 writel(d, val); 1339 d += sizeof(u_int32_t); 1340 } 1341 } 1342 #endif /* VGA_NO_MODE_CHANGE */ 1343 1344 /* entry points */ 1345 1346 #if 0 1347 static int 1348 vga_nop(void) 1349 { 1350 return 0; 1351 } 1352 #endif 1353 1354 static int 1355 vga_error(void) 1356 { 1357 return ENODEV; 1358 } 1359 1360 static int 1361 vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 1362 { 1363 probe_adapters(); 1364 if (unit >= biosadapters) 1365 return ENXIO; 1366 1367 *adpp = &biosadapter[unit]; 1368 1369 return 0; 1370 } 1371 1372 static int 1373 vga_init(int unit, video_adapter_t *adp, int flags) 1374 { 1375 if ((unit >= biosadapters) || (adp == NULL) || !probe_done(adp)) 1376 return ENXIO; 1377 1378 if (!init_done(adp)) { 1379 /* nothing to do really... */ 1380 adp->va_flags |= V_ADP_INITIALIZED; 1381 } 1382 1383 if (!config_done(adp)) { 1384 if (vid_register(adp) < 0) 1385 return ENXIO; 1386 adp->va_flags |= V_ADP_REGISTERED; 1387 } 1388 if (vga_sub_configure != NULL) 1389 (*vga_sub_configure)(0); 1390 1391 return 0; 1392 } 1393 1394 /* 1395 * get_info(): 1396 * Return the video_info structure of the requested video mode. 1397 * 1398 * all adapters 1399 */ 1400 static int 1401 vga_get_info(video_adapter_t *adp, int mode, video_info_t *info) 1402 { 1403 int i; 1404 1405 if (!vga_init_done) 1406 return ENXIO; 1407 1408 mode = map_gen_mode_num(adp->va_type, adp->va_flags & V_ADP_COLOR, mode); 1409 #ifndef VGA_NO_MODE_CHANGE 1410 if (adp->va_flags & V_ADP_MODECHANGE) { 1411 /* 1412 * If the parameter table entry for this mode is not found, 1413 * the mode is not supported... 1414 */ 1415 if (get_mode_param(mode) == NULL) 1416 return EINVAL; 1417 } else 1418 #endif /* VGA_NO_MODE_CHANGE */ 1419 { 1420 /* 1421 * Even if we don't support video mode switching on this adapter, 1422 * the information on the initial (thus current) video mode 1423 * should be made available. 1424 */ 1425 if (mode != adp->va_initial_mode) 1426 return EINVAL; 1427 } 1428 1429 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1430 if (bios_vmode[i].vi_mode == NA) 1431 continue; 1432 if (mode == bios_vmode[i].vi_mode) { 1433 *info = bios_vmode[i]; 1434 /* XXX */ 1435 info->vi_buffer_size = info->vi_window_size*info->vi_planes; 1436 return 0; 1437 } 1438 } 1439 return EINVAL; 1440 } 1441 1442 /* 1443 * query_mode(): 1444 * Find a video mode matching the requested parameters. 1445 * Fields filled with 0 are considered "don't care" fields and 1446 * match any modes. 1447 * 1448 * all adapters 1449 */ 1450 static int 1451 vga_query_mode(video_adapter_t *adp, video_info_t *info) 1452 { 1453 int i; 1454 1455 if (!vga_init_done) 1456 return ENXIO; 1457 1458 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 1459 if (bios_vmode[i].vi_mode == NA) 1460 continue; 1461 1462 if ((info->vi_width != 0) 1463 && (info->vi_width != bios_vmode[i].vi_width)) 1464 continue; 1465 if ((info->vi_height != 0) 1466 && (info->vi_height != bios_vmode[i].vi_height)) 1467 continue; 1468 if ((info->vi_cwidth != 0) 1469 && (info->vi_cwidth != bios_vmode[i].vi_cwidth)) 1470 continue; 1471 if ((info->vi_cheight != 0) 1472 && (info->vi_cheight != bios_vmode[i].vi_cheight)) 1473 continue; 1474 if ((info->vi_depth != 0) 1475 && (info->vi_depth != bios_vmode[i].vi_depth)) 1476 continue; 1477 if ((info->vi_planes != 0) 1478 && (info->vi_planes != bios_vmode[i].vi_planes)) 1479 continue; 1480 /* XXX: should check pixel format, memory model */ 1481 if ((info->vi_flags != 0) 1482 && (info->vi_flags != bios_vmode[i].vi_flags)) 1483 continue; 1484 1485 /* verify if this mode is supported on this adapter */ 1486 if (vga_get_info(adp, bios_vmode[i].vi_mode, info)) 1487 continue; 1488 return 0; 1489 } 1490 return ENODEV; 1491 } 1492 1493 /* 1494 * set_mode(): 1495 * Change the video mode. 1496 * 1497 * EGA/VGA 1498 */ 1499 1500 #ifndef VGA_NO_MODE_CHANGE 1501 #ifdef VGA_WIDTH90 1502 static void 1503 set_width90(adp_state_t *params) 1504 { 1505 /* 1506 * Based on code submitted by Kelly Yancey (kbyanc@freedomnet.com) 1507 * and alexv@sui.gda.itesm.mx. 1508 */ 1509 params->regs[5] |= 1; /* toggle 8 pixel wide fonts */ 1510 params->regs[10+0x0] = 0x6b; 1511 params->regs[10+0x1] = 0x59; 1512 params->regs[10+0x2] = 0x5a; 1513 params->regs[10+0x3] = 0x8e; 1514 params->regs[10+0x4] = 0x5e; 1515 params->regs[10+0x5] = 0x8a; 1516 params->regs[10+0x13] = 45; 1517 params->regs[35+0x13] = 0; 1518 } 1519 #endif /* VGA_WIDTH90 */ 1520 #endif /* !VGA_NO_MODE_CHANGE */ 1521 1522 static int 1523 vga_set_mode(video_adapter_t *adp, int mode) 1524 { 1525 #ifndef VGA_NO_MODE_CHANGE 1526 video_info_t info; 1527 adp_state_t params; 1528 1529 prologue(adp, V_ADP_MODECHANGE, ENODEV); 1530 1531 mode = map_gen_mode_num(adp->va_type, 1532 adp->va_flags & V_ADP_COLOR, mode); 1533 if (vga_get_info(adp, mode, &info)) 1534 return EINVAL; 1535 1536 #if VGA_DEBUG > 1 1537 printf("vga_set_mode(): setting mode %d\n", mode); 1538 #endif 1539 1540 params.sig = V_STATE_SIG; 1541 bcopy(get_mode_param(mode), params.regs, sizeof(params.regs)); 1542 1543 switch (mode) { 1544 #ifdef VGA_WIDTH90 1545 case M_VGA_C90x60: case M_VGA_M90x60: 1546 set_width90(¶ms); 1547 /* FALL THROUGH */ 1548 #endif 1549 case M_VGA_C80x60: case M_VGA_M80x60: 1550 params.regs[2] = 0x08; 1551 params.regs[19] = 0x47; 1552 goto special_480l; 1553 1554 #ifdef VGA_WIDTH90 1555 case M_VGA_C90x30: case M_VGA_M90x30: 1556 set_width90(¶ms); 1557 /* FALL THROUGH */ 1558 #endif 1559 case M_VGA_C80x30: case M_VGA_M80x30: 1560 params.regs[19] = 0x4f; 1561 special_480l: 1562 params.regs[9] |= 0xc0; 1563 params.regs[16] = 0x08; 1564 params.regs[17] = 0x3e; 1565 params.regs[26] = 0xea; 1566 params.regs[28] = 0xdf; 1567 params.regs[31] = 0xe7; 1568 params.regs[32] = 0x04; 1569 goto setup_mode; 1570 1571 #ifdef VGA_WIDTH90 1572 case M_VGA_C90x43: case M_VGA_M90x43: 1573 set_width90(¶ms); 1574 /* FALL THROUGH */ 1575 #endif 1576 case M_ENH_C80x43: case M_ENH_B80x43: 1577 params.regs[28] = 87; 1578 goto special_80x50; 1579 1580 #ifdef VGA_WIDTH90 1581 case M_VGA_C90x50: case M_VGA_M90x50: 1582 set_width90(¶ms); 1583 /* FALL THROUGH */ 1584 #endif 1585 case M_VGA_C80x50: case M_VGA_M80x50: 1586 special_80x50: 1587 params.regs[2] = 8; 1588 params.regs[19] = 7; 1589 goto setup_mode; 1590 1591 #ifdef VGA_WIDTH90 1592 case M_VGA_C90x25: case M_VGA_M90x25: 1593 set_width90(¶ms); 1594 /* FALL THROUGH */ 1595 #endif 1596 case M_VGA_C40x25: case M_VGA_C80x25: 1597 case M_VGA_M80x25: 1598 case M_B40x25: case M_C40x25: 1599 case M_B80x25: case M_C80x25: 1600 case M_ENH_B40x25: case M_ENH_C40x25: 1601 case M_ENH_B80x25: case M_ENH_C80x25: 1602 case M_EGAMONO80x25: 1603 1604 setup_mode: 1605 vga_load_state(adp, ¶ms); 1606 break; 1607 1608 case M_VGA_MODEX: 1609 /* "unchain" the VGA mode */ 1610 params.regs[5-1+0x04] &= 0xf7; 1611 params.regs[5-1+0x04] |= 0x04; 1612 /* turn off doubleword mode */ 1613 params.regs[10+0x14] &= 0xbf; 1614 /* turn off word adressing */ 1615 params.regs[10+0x17] |= 0x40; 1616 /* set logical screen width */ 1617 params.regs[10+0x13] = 80; 1618 /* set 240 lines */ 1619 params.regs[10+0x11] = 0x2c; 1620 params.regs[10+0x06] = 0x0d; 1621 params.regs[10+0x07] = 0x3e; 1622 params.regs[10+0x10] = 0xea; 1623 params.regs[10+0x11] = 0xac; 1624 params.regs[10+0x12] = 0xdf; 1625 params.regs[10+0x15] = 0xe7; 1626 params.regs[10+0x16] = 0x06; 1627 /* set vertical sync polarity to reflect aspect ratio */ 1628 params.regs[9] = 0xe3; 1629 goto setup_grmode; 1630 1631 case M_BG320: case M_CG320: case M_BG640: 1632 case M_CG320_D: case M_CG640_E: 1633 case M_CG640x350: case M_ENH_CG640: 1634 case M_BG640x480: case M_CG640x480: case M_VGA_CG320: 1635 1636 setup_grmode: 1637 vga_load_state(adp, ¶ms); 1638 break; 1639 1640 default: 1641 return EINVAL; 1642 } 1643 1644 adp->va_mode = mode; 1645 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1646 update_adapter_info(adp, &info); 1647 1648 /* move hardware cursor out of the way */ 1649 (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1); 1650 1651 return 0; 1652 #else /* VGA_NO_MODE_CHANGE */ 1653 return ENODEV; 1654 #endif /* VGA_NO_MODE_CHANGE */ 1655 } 1656 1657 #ifndef VGA_NO_FONT_LOADING 1658 1659 static void 1660 set_font_mode(video_adapter_t *adp, u_char *buf) 1661 { 1662 u_char *mp; 1663 int s; 1664 1665 s = splhigh(); 1666 1667 /* save register values */ 1668 if (adp->va_type == KD_VGA) { 1669 outb(TSIDX, 0x02); buf[0] = inb(TSREG); 1670 outb(TSIDX, 0x04); buf[1] = inb(TSREG); 1671 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG); 1672 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG); 1673 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG); 1674 inb(adp->va_crtc_addr + 6); 1675 outb(ATC, 0x10); buf[5] = inb(ATC + 1); 1676 } else /* if (adp->va_type == KD_EGA) */ { 1677 /* 1678 * EGA cannot be read; copy parameters from the mode parameter 1679 * table. 1680 */ 1681 mp = get_mode_param(adp->va_mode); 1682 buf[0] = mp[5 + 0x02 - 1]; 1683 buf[1] = mp[5 + 0x04 - 1]; 1684 buf[2] = mp[55 + 0x04]; 1685 buf[3] = mp[55 + 0x05]; 1686 buf[4] = mp[55 + 0x06]; 1687 buf[5] = mp[35 + 0x10]; 1688 } 1689 1690 /* setup vga for loading fonts */ 1691 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1692 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01); 1693 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1694 outb(ATC, 0x20); /* enable palette */ 1695 1696 #if VGA_SLOW_IOACCESS 1697 #ifdef VGA_ALT_SEQACCESS 1698 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1699 #endif 1700 outb(TSIDX, 0x02); outb(TSREG, 0x04); 1701 outb(TSIDX, 0x04); outb(TSREG, 0x07); 1702 #ifdef VGA_ALT_SEQACCESS 1703 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1704 #endif 1705 outb(GDCIDX, 0x04); outb(GDCREG, 0x02); 1706 outb(GDCIDX, 0x05); outb(GDCREG, 0x00); 1707 outb(GDCIDX, 0x06); outb(GDCREG, 0x04); 1708 #else /* VGA_SLOW_IOACCESS */ 1709 #ifdef VGA_ALT_SEQACCESS 1710 outw(TSIDX, 0x0100); 1711 #endif 1712 outw(TSIDX, 0x0402); 1713 outw(TSIDX, 0x0704); 1714 #ifdef VGA_ALT_SEQACCESS 1715 outw(TSIDX, 0x0300); 1716 #endif 1717 outw(GDCIDX, 0x0204); 1718 outw(GDCIDX, 0x0005); 1719 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */ 1720 #endif /* VGA_SLOW_IOACCESS */ 1721 1722 splx(s); 1723 } 1724 1725 static void 1726 set_normal_mode(video_adapter_t *adp, u_char *buf) 1727 { 1728 int s; 1729 1730 s = splhigh(); 1731 1732 /* setup vga for normal operation mode again */ 1733 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1734 outb(ATC, 0x10); outb(ATC, buf[5]); 1735 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 1736 outb(ATC, 0x20); /* enable palette */ 1737 1738 #if VGA_SLOW_IOACCESS 1739 #ifdef VGA_ALT_SEQACCESS 1740 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1741 #endif 1742 outb(TSIDX, 0x02); outb(TSREG, buf[0]); 1743 outb(TSIDX, 0x04); outb(TSREG, buf[1]); 1744 #ifdef VGA_ALT_SEQACCESS 1745 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1746 #endif 1747 outb(GDCIDX, 0x04); outb(GDCREG, buf[2]); 1748 outb(GDCIDX, 0x05); outb(GDCREG, buf[3]); 1749 if (adp->va_crtc_addr == MONO_CRTC) { 1750 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x08); 1751 } else { 1752 outb(GDCIDX, 0x06); outb(GDCREG,(buf[4] & 0x03) | 0x0c); 1753 } 1754 #else /* VGA_SLOW_IOACCESS */ 1755 #ifdef VGA_ALT_SEQACCESS 1756 outw(TSIDX, 0x0100); 1757 #endif 1758 outw(TSIDX, 0x0002 | (buf[0] << 8)); 1759 outw(TSIDX, 0x0004 | (buf[1] << 8)); 1760 #ifdef VGA_ALT_SEQACCESS 1761 outw(TSIDX, 0x0300); 1762 #endif 1763 outw(GDCIDX, 0x0004 | (buf[2] << 8)); 1764 outw(GDCIDX, 0x0005 | (buf[3] << 8)); 1765 if (adp->va_crtc_addr == MONO_CRTC) 1766 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x08)<<8)); 1767 else 1768 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8)); 1769 #endif /* VGA_SLOW_IOACCESS */ 1770 1771 splx(s); 1772 } 1773 1774 #endif /* VGA_NO_FONT_LOADING */ 1775 1776 /* 1777 * save_font(): 1778 * Read the font data in the requested font page from the video adapter. 1779 * 1780 * EGA/VGA 1781 */ 1782 static int 1783 vga_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1784 int ch, int count) 1785 { 1786 #ifndef VGA_NO_FONT_LOADING 1787 u_char buf[PARAM_BUFSIZE]; 1788 u_int32_t segment; 1789 int c; 1790 #ifdef VGA_ALT_SEQACCESS 1791 int s; 1792 u_char val = 0; 1793 #endif 1794 1795 prologue(adp, V_ADP_FONT, ENODEV); 1796 1797 if (fontsize < 14) { 1798 /* FONT_8 */ 1799 fontsize = 8; 1800 } else if (fontsize >= 32) { 1801 fontsize = 32; 1802 } else if (fontsize >= 16) { 1803 /* FONT_16 */ 1804 fontsize = 16; 1805 } else { 1806 /* FONT_14 */ 1807 fontsize = 14; 1808 } 1809 1810 if (page < 0 || page >= 8) 1811 return EINVAL; 1812 segment = FONT_BUF + 0x4000*page; 1813 if (page > 3) 1814 segment -= 0xe000; 1815 1816 #ifdef VGA_ALT_SEQACCESS 1817 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1818 s = splhigh(); 1819 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1820 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1821 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1822 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1823 splx(s); 1824 } 1825 #endif 1826 1827 set_font_mode(adp, buf); 1828 if (fontsize == 32) { 1829 bcopy_fromio(segment + ch*32, data, fontsize*count); 1830 } else { 1831 for (c = ch; count > 0; ++c, --count) { 1832 bcopy_fromio(segment + c*32, data, fontsize); 1833 data += fontsize; 1834 } 1835 } 1836 set_normal_mode(adp, buf); 1837 1838 #ifdef VGA_ALT_SEQACCESS 1839 if (adp->va_type == KD_VGA) { 1840 s = splhigh(); 1841 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1842 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1843 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1844 splx(s); 1845 } 1846 #endif 1847 1848 return 0; 1849 #else /* VGA_NO_FONT_LOADING */ 1850 return ENODEV; 1851 #endif /* VGA_NO_FONT_LOADING */ 1852 } 1853 1854 /* 1855 * load_font(): 1856 * Set the font data in the requested font page. 1857 * NOTE: it appears that some recent video adapters do not support 1858 * the font page other than 0... XXX 1859 * 1860 * EGA/VGA 1861 */ 1862 static int 1863 vga_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1864 int ch, int count) 1865 { 1866 #ifndef VGA_NO_FONT_LOADING 1867 u_char buf[PARAM_BUFSIZE]; 1868 u_int32_t segment; 1869 int c; 1870 #ifdef VGA_ALT_SEQACCESS 1871 int s; 1872 u_char val = 0; 1873 #endif 1874 1875 prologue(adp, V_ADP_FONT, ENODEV); 1876 1877 if (fontsize < 14) { 1878 /* FONT_8 */ 1879 fontsize = 8; 1880 } else if (fontsize >= 32) { 1881 fontsize = 32; 1882 } else if (fontsize >= 16) { 1883 /* FONT_16 */ 1884 fontsize = 16; 1885 } else { 1886 /* FONT_14 */ 1887 fontsize = 14; 1888 } 1889 1890 if (page < 0 || page >= 8) 1891 return EINVAL; 1892 segment = FONT_BUF + 0x4000*page; 1893 if (page > 3) 1894 segment -= 0xe000; 1895 1896 #ifdef VGA_ALT_SEQACCESS 1897 if (adp->va_type == KD_VGA) { /* what about EGA? XXX */ 1898 s = splhigh(); 1899 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1900 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1901 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1902 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1903 splx(s); 1904 } 1905 #endif 1906 1907 set_font_mode(adp, buf); 1908 if (fontsize == 32) { 1909 bcopy_toio(data, segment + ch*32, fontsize*count); 1910 } else { 1911 for (c = ch; count > 0; ++c, --count) { 1912 bcopy_toio(data, segment + c*32, fontsize); 1913 data += fontsize; 1914 } 1915 } 1916 set_normal_mode(adp, buf); 1917 1918 #ifdef VGA_ALT_SEQACCESS 1919 if (adp->va_type == KD_VGA) { 1920 s = splhigh(); 1921 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1922 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1923 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1924 splx(s); 1925 } 1926 #endif 1927 1928 return 0; 1929 #else /* VGA_NO_FONT_LOADING */ 1930 return ENODEV; 1931 #endif /* VGA_NO_FONT_LOADING */ 1932 } 1933 1934 /* 1935 * show_font(): 1936 * Activate the requested font page. 1937 * NOTE: it appears that some recent video adapters do not support 1938 * the font page other than 0... XXX 1939 * 1940 * EGA/VGA 1941 */ 1942 static int 1943 vga_show_font(video_adapter_t *adp, int page) 1944 { 1945 #ifndef VGA_NO_FONT_LOADING 1946 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f }; 1947 int s; 1948 1949 prologue(adp, V_ADP_FONT, ENODEV); 1950 if (page < 0 || page >= 8) 1951 return EINVAL; 1952 1953 s = splhigh(); 1954 outb(TSIDX, 0x03); outb(TSREG, cg[page]); 1955 splx(s); 1956 1957 return 0; 1958 #else /* VGA_NO_FONT_LOADING */ 1959 return ENODEV; 1960 #endif /* VGA_NO_FONT_LOADING */ 1961 } 1962 1963 /* 1964 * save_palette(): 1965 * Read DAC values. The values have expressed in 8 bits. 1966 * 1967 * VGA 1968 */ 1969 static int 1970 vga_save_palette(video_adapter_t *adp, u_char *palette) 1971 { 1972 int i; 1973 1974 prologue(adp, V_ADP_PALETTE, ENODEV); 1975 1976 /* 1977 * We store 8 bit values in the palette buffer, while the standard 1978 * VGA has 6 bit DAC . 1979 */ 1980 outb(PALRADR, 0x00); 1981 for (i = 0; i < 256*3; ++i) 1982 palette[i] = inb(PALDATA) << 2; 1983 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 1984 return 0; 1985 } 1986 1987 static int 1988 vga_save_palette2(video_adapter_t *adp, int base, int count, 1989 u_char *r, u_char *g, u_char *b) 1990 { 1991 int i; 1992 1993 prologue(adp, V_ADP_PALETTE, ENODEV); 1994 1995 outb(PALRADR, base); 1996 for (i = 0; i < count; ++i) { 1997 r[i] = inb(PALDATA) << 2; 1998 g[i] = inb(PALDATA) << 2; 1999 b[i] = inb(PALDATA) << 2; 2000 } 2001 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2002 return 0; 2003 } 2004 2005 /* 2006 * load_palette(): 2007 * Set DAC values. 2008 * 2009 * VGA 2010 */ 2011 static int 2012 vga_load_palette(video_adapter_t *adp, u_char *palette) 2013 { 2014 int i; 2015 2016 prologue(adp, V_ADP_PALETTE, ENODEV); 2017 2018 outb(PIXMASK, 0xff); /* no pixelmask */ 2019 outb(PALWADR, 0x00); 2020 for (i = 0; i < 256*3; ++i) 2021 outb(PALDATA, palette[i] >> 2); 2022 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2023 outb(ATC, 0x20); /* enable palette */ 2024 return 0; 2025 } 2026 2027 static int 2028 vga_load_palette2(video_adapter_t *adp, int base, int count, 2029 u_char *r, u_char *g, u_char *b) 2030 { 2031 int i; 2032 2033 prologue(adp, V_ADP_PALETTE, ENODEV); 2034 2035 outb(PIXMASK, 0xff); /* no pixelmask */ 2036 outb(PALWADR, base); 2037 for (i = 0; i < count; ++i) { 2038 outb(PALDATA, r[i] >> 2); 2039 outb(PALDATA, g[i] >> 2); 2040 outb(PALDATA, b[i] >> 2); 2041 } 2042 inb(adp->va_crtc_addr + 6); /* reset flip/flop */ 2043 outb(ATC, 0x20); /* enable palette */ 2044 return 0; 2045 } 2046 2047 /* 2048 * set_border(): 2049 * Change the border color. 2050 * 2051 * CGA/EGA/VGA 2052 */ 2053 static int 2054 vga_set_border(video_adapter_t *adp, int color) 2055 { 2056 prologue(adp, V_ADP_BORDER, ENODEV); 2057 2058 switch (adp->va_type) { 2059 case KD_EGA: 2060 case KD_VGA: 2061 inb(adp->va_crtc_addr + 6); /* reset flip-flop */ 2062 outb(ATC, 0x31); outb(ATC, color & 0xff); 2063 break; 2064 case KD_CGA: 2065 outb(adp->va_crtc_addr + 5, color & 0x0f); /* color select register */ 2066 break; 2067 case KD_MONO: 2068 case KD_HERCULES: 2069 default: 2070 break; 2071 } 2072 return 0; 2073 } 2074 2075 /* 2076 * save_state(): 2077 * Read video register values. 2078 * NOTE: this function only reads the standard EGA/VGA registers. 2079 * any extra/extended registers of SVGA adapters are not saved. 2080 * 2081 * VGA 2082 */ 2083 static int 2084 vga_save_state(video_adapter_t *adp, void *p, size_t size) 2085 { 2086 video_info_t info; 2087 u_char *buf; 2088 int crtc_addr; 2089 int i, j; 2090 int s; 2091 2092 if (size == 0) { 2093 /* return the required buffer size */ 2094 prologue(adp, V_ADP_STATESAVE, 0); 2095 return sizeof(adp_state_t); 2096 } else { 2097 prologue(adp, V_ADP_STATESAVE, ENODEV); 2098 if (size < sizeof(adp_state_t)) 2099 return EINVAL; 2100 } 2101 2102 ((adp_state_t *)p)->sig = V_STATE_SIG; 2103 buf = ((adp_state_t *)p)->regs; 2104 bzero(buf, V_MODE_PARAM_SIZE); 2105 crtc_addr = adp->va_crtc_addr; 2106 2107 s = splhigh(); 2108 2109 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2110 for (i = 0, j = 5; i < 4; i++) { 2111 outb(TSIDX, i + 1); 2112 buf[j++] = inb(TSREG); 2113 } 2114 buf[9] = inb(MISC + 10); /* dot-clock */ 2115 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2116 2117 for (i = 0, j = 10; i < 25; i++) { /* crtc */ 2118 outb(crtc_addr, i); 2119 buf[j++] = inb(crtc_addr + 1); 2120 } 2121 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */ 2122 inb(crtc_addr + 6); /* reset flip-flop */ 2123 outb(ATC, i); 2124 buf[j++] = inb(ATC + 1); 2125 } 2126 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */ 2127 outb(GDCIDX, i); 2128 buf[j++] = inb(GDCREG); 2129 } 2130 inb(crtc_addr + 6); /* reset flip-flop */ 2131 outb(ATC, 0x20); /* enable palette */ 2132 2133 splx(s); 2134 2135 #if 1 2136 if (vga_get_info(adp, adp->va_mode, &info) == 0) { 2137 if (info.vi_flags & V_INFO_GRAPHICS) { 2138 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */ 2139 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */ 2140 } else { 2141 buf[0] = info.vi_width; /* COLS */ 2142 buf[1] = info.vi_height - 1; /* ROWS */ 2143 } 2144 buf[2] = info.vi_cheight; /* POINTS */ 2145 } else { 2146 /* XXX: shouldn't be happening... */ 2147 printf("vga%d: %s: failed to obtain mode info. (vga_save_state())\n", 2148 adp->va_unit, adp->va_name); 2149 } 2150 #else 2151 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */ 2152 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */ 2153 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */ 2154 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c)); 2155 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d)); 2156 #endif 2157 2158 return 0; 2159 } 2160 2161 /* 2162 * load_state(): 2163 * Set video registers at once. 2164 * NOTE: this function only updates the standard EGA/VGA registers. 2165 * any extra/extended registers of SVGA adapters are not changed. 2166 * 2167 * EGA/VGA 2168 */ 2169 static int 2170 vga_load_state(video_adapter_t *adp, void *p) 2171 { 2172 u_char *buf; 2173 int crtc_addr; 2174 int s; 2175 int i; 2176 2177 prologue(adp, V_ADP_STATELOAD, ENODEV); 2178 if (((adp_state_t *)p)->sig != V_STATE_SIG) 2179 return EINVAL; 2180 2181 buf = ((adp_state_t *)p)->regs; 2182 crtc_addr = adp->va_crtc_addr; 2183 2184 #if VGA_DEBUG > 1 2185 dump_buffer(buf, V_MODE_PARAM_SIZE); 2186 #endif 2187 2188 s = splhigh(); 2189 2190 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 2191 for (i = 0; i < 4; ++i) { /* program sequencer */ 2192 outb(TSIDX, i + 1); 2193 outb(TSREG, buf[i + 5]); 2194 } 2195 outb(MISC, buf[9]); /* set dot-clock */ 2196 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 2197 outb(crtc_addr, 0x11); 2198 outb(crtc_addr + 1, inb(crtc_addr + 1) & 0x7F); 2199 for (i = 0; i < 25; ++i) { /* program crtc */ 2200 outb(crtc_addr, i); 2201 outb(crtc_addr + 1, buf[i + 10]); 2202 } 2203 inb(crtc_addr+6); /* reset flip-flop */ 2204 for (i = 0; i < 20; ++i) { /* program attribute ctrl */ 2205 outb(ATC, i); 2206 outb(ATC, buf[i + 35]); 2207 } 2208 for (i = 0; i < 9; ++i) { /* program graph data ctrl */ 2209 outb(GDCIDX, i); 2210 outb(GDCREG, buf[i + 55]); 2211 } 2212 inb(crtc_addr + 6); /* reset flip-flop */ 2213 outb(ATC, 0x20); /* enable palette */ 2214 2215 #if notyet /* a temporary workaround for kernel panic, XXX */ 2216 #ifndef VGA_NO_BIOS 2217 if (adp->va_unit == V_ADP_PRIMARY) { 2218 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */ 2219 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */ 2220 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */ 2221 #if 0 2222 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]); 2223 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]); 2224 #endif 2225 } 2226 #endif /* VGA_NO_BIOS */ 2227 #endif /* notyet */ 2228 2229 splx(s); 2230 return 0; 2231 } 2232 2233 /* 2234 * set_origin(): 2235 * Change the origin (window mapping) of the banked frame buffer. 2236 */ 2237 static int 2238 vga_set_origin(video_adapter_t *adp, off_t offset) 2239 { 2240 /* 2241 * The standard video modes do not require window mapping; 2242 * always return error. 2243 */ 2244 return ENODEV; 2245 } 2246 2247 /* 2248 * read_hw_cursor(): 2249 * Read the position of the hardware text cursor. 2250 * 2251 * all adapters 2252 */ 2253 static int 2254 vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 2255 { 2256 u_int16_t off; 2257 int s; 2258 2259 if (!vga_init_done) 2260 return ENXIO; 2261 2262 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2263 return ENODEV; 2264 2265 s = spltty(); 2266 outb(adp->va_crtc_addr, 14); 2267 off = inb(adp->va_crtc_addr + 1); 2268 outb(adp->va_crtc_addr, 15); 2269 off = (off << 8) | inb(adp->va_crtc_addr + 1); 2270 splx(s); 2271 2272 *row = off / adp->va_info.vi_width; 2273 *col = off % adp->va_info.vi_width; 2274 2275 return 0; 2276 } 2277 2278 /* 2279 * set_hw_cursor(): 2280 * Move the hardware text cursor. If col and row are both -1, 2281 * the cursor won't be shown. 2282 * 2283 * all adapters 2284 */ 2285 static int 2286 vga_set_hw_cursor(video_adapter_t *adp, int col, int row) 2287 { 2288 u_int16_t off; 2289 int s; 2290 2291 if (!vga_init_done) 2292 return ENXIO; 2293 2294 if ((col == -1) && (row == -1)) { 2295 off = -1; 2296 } else { 2297 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 2298 return ENODEV; 2299 off = row*adp->va_info.vi_width + col; 2300 } 2301 2302 s = spltty(); 2303 outb(adp->va_crtc_addr, 14); 2304 outb(adp->va_crtc_addr + 1, off >> 8); 2305 outb(adp->va_crtc_addr, 15); 2306 outb(adp->va_crtc_addr + 1, off & 0x00ff); 2307 splx(s); 2308 2309 return 0; 2310 } 2311 2312 /* 2313 * set_hw_cursor_shape(): 2314 * Change the shape of the hardware text cursor. If the height is 2315 * zero or negative, the cursor won't be shown. 2316 * 2317 * all adapters 2318 */ 2319 static int 2320 vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 2321 int celsize, int blink) 2322 { 2323 int s; 2324 2325 if (!vga_init_done) 2326 return ENXIO; 2327 2328 s = spltty(); 2329 switch (adp->va_type) { 2330 case KD_VGA: 2331 case KD_CGA: 2332 case KD_MONO: 2333 case KD_HERCULES: 2334 default: 2335 if (height <= 0) { 2336 /* make the cursor invisible */ 2337 outb(adp->va_crtc_addr, 10); 2338 outb(adp->va_crtc_addr + 1, 32); 2339 outb(adp->va_crtc_addr, 11); 2340 outb(adp->va_crtc_addr + 1, 0); 2341 } else { 2342 outb(adp->va_crtc_addr, 10); 2343 outb(adp->va_crtc_addr + 1, celsize - base - height); 2344 outb(adp->va_crtc_addr, 11); 2345 outb(adp->va_crtc_addr + 1, celsize - base - 1); 2346 } 2347 break; 2348 case KD_EGA: 2349 if (height <= 0) { 2350 /* make the cursor invisible */ 2351 outb(adp->va_crtc_addr, 10); 2352 outb(adp->va_crtc_addr + 1, celsize); 2353 outb(adp->va_crtc_addr, 11); 2354 outb(adp->va_crtc_addr + 1, 0); 2355 } else { 2356 outb(adp->va_crtc_addr, 10); 2357 outb(adp->va_crtc_addr + 1, celsize - base - height); 2358 outb(adp->va_crtc_addr, 11); 2359 outb(adp->va_crtc_addr + 1, celsize - base); 2360 } 2361 break; 2362 } 2363 splx(s); 2364 2365 return 0; 2366 } 2367 2368 /* 2369 * blank_display() 2370 * Put the display in power save/power off mode. 2371 * 2372 * all adapters 2373 */ 2374 static int 2375 vga_blank_display(video_adapter_t *adp, int mode) 2376 { 2377 u_char val; 2378 int s; 2379 2380 s = splhigh(); 2381 switch (adp->va_type) { 2382 case KD_VGA: 2383 switch (mode) { 2384 case V_DISPLAY_SUSPEND: 2385 case V_DISPLAY_STAND_BY: 2386 outb(TSIDX, 0x01); 2387 val = inb(TSREG); 2388 outb(TSIDX, 0x01); 2389 outb(TSREG, val | 0x20); 2390 outb(adp->va_crtc_addr, 0x17); 2391 val = inb(adp->va_crtc_addr + 1); 2392 outb(adp->va_crtc_addr + 1, val & ~0x80); 2393 break; 2394 case V_DISPLAY_BLANK: 2395 outb(TSIDX, 0x01); 2396 val = inb(TSREG); 2397 outb(TSIDX, 0x01); 2398 outb(TSREG, val | 0x20); 2399 break; 2400 case V_DISPLAY_ON: 2401 outb(TSIDX, 0x01); 2402 val = inb(TSREG); 2403 outb(TSIDX, 0x01); 2404 outb(TSREG, val & 0xDF); 2405 outb(adp->va_crtc_addr, 0x17); 2406 val = inb(adp->va_crtc_addr + 1); 2407 outb(adp->va_crtc_addr + 1, val | 0x80); 2408 break; 2409 } 2410 break; 2411 2412 case KD_EGA: 2413 /* no support yet */ 2414 splx(s); 2415 return ENODEV; 2416 2417 case KD_CGA: 2418 switch (mode) { 2419 case V_DISPLAY_SUSPEND: 2420 case V_DISPLAY_STAND_BY: 2421 case V_DISPLAY_BLANK: 2422 outb(adp->va_crtc_addr + 4, 0x25); 2423 break; 2424 case V_DISPLAY_ON: 2425 outb(adp->va_crtc_addr + 4, 0x2d); 2426 break; 2427 } 2428 break; 2429 2430 case KD_MONO: 2431 case KD_HERCULES: 2432 switch (mode) { 2433 case V_DISPLAY_SUSPEND: 2434 case V_DISPLAY_STAND_BY: 2435 case V_DISPLAY_BLANK: 2436 outb(adp->va_crtc_addr + 4, 0x21); 2437 break; 2438 case V_DISPLAY_ON: 2439 outb(adp->va_crtc_addr + 4, 0x29); 2440 break; 2441 } 2442 break; 2443 default: 2444 break; 2445 } 2446 splx(s); 2447 2448 return 0; 2449 } 2450 2451 /* 2452 * mmap(): 2453 * Mmap frame buffer. 2454 * 2455 * all adapters 2456 */ 2457 static int 2458 vga_mmap_buf(video_adapter_t *adp, vm_offset_t offset, int prot) 2459 { 2460 if (adp->va_info.vi_flags & V_INFO_LINEAR) 2461 return -1; 2462 2463 #if VGA_DEBUG > 0 2464 printf("vga_mmap_buf(): window:0x%x, offset:0x%x\n", 2465 adp->va_info.vi_window, offset); 2466 #endif 2467 2468 /* XXX: is this correct? */ 2469 if (offset > adp->va_window_size - PAGE_SIZE) 2470 return -1; 2471 2472 #ifdef __i386__ 2473 return i386_btop(adp->va_info.vi_window + offset); 2474 #endif 2475 #ifdef __alpha__ 2476 return alpha_btop(adp->va_info.vi_window + offset); 2477 #endif 2478 } 2479 2480 #ifndef VGA_NO_MODE_CHANGE 2481 2482 static void 2483 planar_fill(video_adapter_t *adp, int val) 2484 { 2485 int length; 2486 int at; /* position in the frame buffer */ 2487 int l; 2488 2489 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2490 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2491 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2492 outw(GDCIDX, 0xff08); /* bit mask */ 2493 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2494 at = 0; 2495 length = adp->va_line_width*adp->va_info.vi_height; 2496 while (length > 0) { 2497 l = imin(length, adp->va_window_size); 2498 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2499 bzero_io(adp->va_window, l); 2500 length -= l; 2501 at += l; 2502 } 2503 outw(GDCIDX, 0x0000); /* set/reset */ 2504 outw(GDCIDX, 0x0001); /* set/reset enable */ 2505 } 2506 2507 static void 2508 packed_fill(video_adapter_t *adp, int val) 2509 { 2510 int length; 2511 int at; /* position in the frame buffer */ 2512 int l; 2513 2514 at = 0; 2515 length = adp->va_line_width*adp->va_info.vi_height; 2516 while (length > 0) { 2517 l = imin(length, adp->va_window_size); 2518 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2519 fill_io(val, adp->va_window, l); 2520 length -= l; 2521 at += l; 2522 } 2523 } 2524 2525 static void 2526 direct_fill(video_adapter_t *adp, int val) 2527 { 2528 int length; 2529 int at; /* position in the frame buffer */ 2530 int l; 2531 2532 at = 0; 2533 length = adp->va_line_width*adp->va_info.vi_height; 2534 while (length > 0) { 2535 l = imin(length, adp->va_window_size); 2536 (*vidsw[adp->va_index]->set_win_org)(adp, at); 2537 switch (adp->va_info.vi_pixel_size) { 2538 case sizeof(u_int16_t): 2539 fillw_io(val, adp->va_window, l/sizeof(u_int16_t)); 2540 break; 2541 case 3: 2542 /* FIXME */ 2543 break; 2544 case sizeof(u_int32_t): 2545 filll_io(val, adp->va_window, l/sizeof(u_int32_t)); 2546 break; 2547 } 2548 length -= l; 2549 at += l; 2550 } 2551 } 2552 2553 static int 2554 vga_clear(video_adapter_t *adp) 2555 { 2556 switch (adp->va_info.vi_mem_model) { 2557 case V_INFO_MM_TEXT: 2558 /* do nothing? XXX */ 2559 break; 2560 case V_INFO_MM_PLANAR: 2561 planar_fill(adp, 0); 2562 break; 2563 case V_INFO_MM_PACKED: 2564 packed_fill(adp, 0); 2565 break; 2566 case V_INFO_MM_DIRECT: 2567 direct_fill(adp, 0); 2568 break; 2569 } 2570 return 0; 2571 } 2572 2573 #ifdef notyet 2574 static void 2575 planar_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2576 { 2577 int banksize; 2578 int bank; 2579 int pos; 2580 int offset; /* offset within window */ 2581 int bx; 2582 int l; 2583 2584 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 2585 outw(GDCIDX, 0x0003); /* data rotate/function select */ 2586 outw(GDCIDX, 0x0f01); /* set/reset enable */ 2587 outw(GDCIDX, 0xff08); /* bit mask */ 2588 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 2589 2590 banksize = adp->va_window_size; 2591 bank = -1; 2592 while (cy > 0) { 2593 pos = adp->va_line_width*y + x/8; 2594 if (bank != pos/banksize) { 2595 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2596 bank = pos/banksize; 2597 } 2598 offset = pos%banksize; 2599 bx = (x + cx)/8 - x/8; 2600 if (x % 8) { 2601 outw(GDCIDX, ((0xff00 >> (x % 8)) & 0xff00) | 0x08); 2602 writeb(adp->va_window + offset, 0); 2603 ++offset; 2604 --bx; 2605 if (offset >= banksize) { 2606 offset = 0; 2607 ++bank; /* next bank */ 2608 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2609 } 2610 outw(GDCIDX, 0xff08); /* bit mask */ 2611 } 2612 while (bx > 0) { 2613 l = imin(bx, banksize); 2614 bzero_io(adp->va_window + offset, l); 2615 offset += l; 2616 bx -= l; 2617 if (offset >= banksize) { 2618 offset = 0; 2619 ++bank; /* next bank */ 2620 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2621 } 2622 } 2623 if ((x + cx) % 8) { 2624 outw(GDCIDX, (~(0xff00 >> ((x + cx) % 8)) & 0xff00) | 0x08); 2625 writeb(adp->va_window + offset, 0); 2626 ++offset; 2627 if (offset >= banksize) { 2628 offset = 0; 2629 ++bank; /* next bank */ 2630 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2631 } 2632 outw(GDCIDX, 0xff08); /* bit mask */ 2633 } 2634 ++y; 2635 --cy; 2636 } 2637 2638 outw(GDCIDX, 0xff08); /* bit mask */ 2639 outw(GDCIDX, 0x0000); /* set/reset */ 2640 outw(GDCIDX, 0x0001); /* set/reset enable */ 2641 } 2642 2643 static void 2644 packed_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2645 { 2646 int banksize; 2647 int bank; 2648 int pos; 2649 int offset; /* offset within window */ 2650 int end; 2651 2652 banksize = adp->va_window_size; 2653 bank = -1; 2654 cx *= adp->va_info.vi_pixel_size; 2655 while (cy > 0) { 2656 pos = adp->va_line_width*y + x*adp->va_info.vi_pixel_size; 2657 if (bank != pos/banksize) { 2658 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2659 bank = pos/banksize; 2660 } 2661 offset = pos%banksize; 2662 end = imin(offset + cx, banksize); 2663 fill_io(val, adp->va_window + offset, 2664 (end - offset)/adp->va_info.vi_pixel_size); 2665 /* the line may cross the window boundary */ 2666 if (offset + cx > banksize) { 2667 ++bank; /* next bank */ 2668 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2669 end = offset + cx - banksize; 2670 fill_io(val, adp->va_window, end/adp->va_info.vi_pixel_size); 2671 } 2672 ++y; 2673 --cy; 2674 } 2675 } 2676 2677 static void 2678 direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2679 { 2680 int banksize; 2681 int bank; 2682 int pos; 2683 int offset; /* offset within window */ 2684 int end; 2685 2686 /* 2687 * XXX: the function assumes that banksize is a muliple of 2688 * sizeof(u_int16_t). 2689 */ 2690 banksize = adp->va_window_size; 2691 bank = -1; 2692 cx *= sizeof(u_int16_t); 2693 while (cy > 0) { 2694 pos = adp->va_line_width*y + x*sizeof(u_int16_t); 2695 if (bank != pos/banksize) { 2696 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2697 bank = pos/banksize; 2698 } 2699 offset = pos%banksize; 2700 end = imin(offset + cx, banksize); 2701 fillw_io(val, adp->va_window + offset, 2702 (end - offset)/sizeof(u_int16_t)); 2703 /* the line may cross the window boundary */ 2704 if (offset + cx > banksize) { 2705 ++bank; /* next bank */ 2706 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2707 end = offset + cx - banksize; 2708 fillw_io(val, adp->va_window, end/sizeof(u_int16_t)); 2709 } 2710 ++y; 2711 --cy; 2712 } 2713 } 2714 2715 static void 2716 direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2717 { 2718 int banksize; 2719 int bank; 2720 int pos; 2721 int offset; /* offset within window */ 2722 int end; 2723 int i; 2724 int j; 2725 u_int8_t b[3]; 2726 2727 b[0] = val & 0x0000ff; 2728 b[1] = (val >> 8) & 0x0000ff; 2729 b[2] = (val >> 16) & 0x0000ff; 2730 banksize = adp->va_window_size; 2731 bank = -1; 2732 cx *= 3; 2733 while (cy > 0) { 2734 pos = adp->va_line_width*y + x*3; 2735 if (bank != pos/banksize) { 2736 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2737 bank = pos/banksize; 2738 } 2739 offset = pos%banksize; 2740 end = imin(offset + cx, banksize); 2741 for (i = 0, j = offset; j < end; i = (++i)%3, ++j) { 2742 writeb(adp->va_window + j, b[i]); 2743 } 2744 /* the line may cross the window boundary */ 2745 if (offset + cx >= banksize) { 2746 ++bank; /* next bank */ 2747 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2748 j = 0; 2749 end = offset + cx - banksize; 2750 for (; j < end; i = (++i)%3, ++j) { 2751 writeb(adp->va_window + j, b[i]); 2752 } 2753 } 2754 ++y; 2755 --cy; 2756 } 2757 } 2758 2759 static void 2760 direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2761 { 2762 int banksize; 2763 int bank; 2764 int pos; 2765 int offset; /* offset within window */ 2766 int end; 2767 2768 /* 2769 * XXX: the function assumes that banksize is a muliple of 2770 * sizeof(u_int32_t). 2771 */ 2772 banksize = adp->va_window_size; 2773 bank = -1; 2774 cx *= sizeof(u_int32_t); 2775 while (cy > 0) { 2776 pos = adp->va_line_width*y + x*sizeof(u_int32_t); 2777 if (bank != pos/banksize) { 2778 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2779 bank = pos/banksize; 2780 } 2781 offset = pos%banksize; 2782 end = imin(offset + cx, banksize); 2783 filll_io(val, adp->va_window + offset, 2784 (end - offset)/sizeof(u_int32_t)); 2785 /* the line may cross the window boundary */ 2786 if (offset + cx > banksize) { 2787 ++bank; /* next bank */ 2788 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2789 end = offset + cx - banksize; 2790 filll_io(val, adp->va_window, end/sizeof(u_int32_t)); 2791 } 2792 ++y; 2793 --cy; 2794 } 2795 } 2796 2797 static int 2798 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2799 { 2800 switch (adp->va_info.vi_mem_model) { 2801 case V_INFO_MM_TEXT: 2802 /* do nothing? XXX */ 2803 break; 2804 case V_INFO_MM_PLANAR: 2805 planar_fill_rect(adp, val, x, y, cx, cy); 2806 break; 2807 case V_INFO_MM_PACKED: 2808 packed_fill_rect(adp, val, x, y, cx, cy); 2809 break; 2810 case V_INFO_MM_DIRECT: 2811 switch (adp->va_info.vi_pixel_size) { 2812 case sizeof(u_int16_t): 2813 direct_fill_rect16(adp, val, x, y, cx, cy); 2814 break; 2815 case 3: 2816 direct_fill_rect24(adp, val, x, y, cx, cy); 2817 break; 2818 case sizeof(u_int32_t): 2819 direct_fill_rect32(adp, val, x, y, cx, cy); 2820 break; 2821 } 2822 break; 2823 } 2824 return 0; 2825 } 2826 #else /* !notyet */ 2827 static int 2828 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2829 { 2830 return ENODEV; 2831 } 2832 #endif /* notyet */ 2833 2834 static int 2835 vga_bitblt(video_adapter_t *adp,...) 2836 { 2837 /* FIXME */ 2838 return ENODEV; 2839 } 2840 2841 #endif /* !VGA_NO_MODE_CHANGE */ 2842 2843 static int 2844 get_palette(video_adapter_t *adp, int base, int count, 2845 u_char *red, u_char *green, u_char *blue, u_char *trans) 2846 { 2847 u_char *r; 2848 u_char *g; 2849 u_char *b; 2850 2851 if ((base < 0) || (base >= 256) || (base + count > 256)) 2852 return EINVAL; 2853 2854 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2855 g = r + count; 2856 b = g + count; 2857 if (vga_save_palette2(adp, base, count, r, g, b)) 2858 return ENODEV; 2859 copyout(r, red, count); 2860 copyout(g, green, count); 2861 copyout(b, blue, count); 2862 if (trans != NULL) { 2863 bzero(r, count); 2864 copyout(r, trans, count); 2865 } 2866 free(r, M_DEVBUF); 2867 2868 return 0; 2869 } 2870 2871 static int 2872 set_palette(video_adapter_t *adp, int base, int count, 2873 u_char *red, u_char *green, u_char *blue, u_char *trans) 2874 { 2875 u_char *r; 2876 u_char *g; 2877 u_char *b; 2878 int err; 2879 2880 if ((base < 0) || (base >= 256) || (base + count > 256)) 2881 return EINVAL; 2882 2883 r = malloc(count*3, M_DEVBUF, M_WAITOK); 2884 g = r + count; 2885 b = g + count; 2886 copyin(red, r, count); 2887 copyin(green, g, count); 2888 copyin(blue, b, count); 2889 err = vga_load_palette2(adp, base, count, r, g, b); 2890 free(r, M_DEVBUF); 2891 2892 return (err ? ENODEV : 0); 2893 } 2894 2895 static int 2896 vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 2897 { 2898 switch (cmd) { 2899 case FBIO_GETWINORG: /* get frame buffer window origin */ 2900 *(u_int *)arg = 0; 2901 return 0; 2902 2903 case FBIO_SETWINORG: /* set frame buffer window origin */ 2904 return ENODEV; 2905 2906 case FBIO_SETDISPSTART: /* set display start address */ 2907 return (set_display_start(adp, 2908 ((video_display_start_t *)arg)->x, 2909 ((video_display_start_t *)arg)->y) 2910 ? ENODEV : 0); 2911 2912 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */ 2913 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0); 2914 2915 case FBIO_GETPALETTE: /* get color palette */ 2916 return get_palette(adp, ((video_color_palette_t *)arg)->index, 2917 ((video_color_palette_t *)arg)->count, 2918 ((video_color_palette_t *)arg)->red, 2919 ((video_color_palette_t *)arg)->green, 2920 ((video_color_palette_t *)arg)->blue, 2921 ((video_color_palette_t *)arg)->transparent); 2922 2923 case FBIO_SETPALETTE: /* set color palette */ 2924 return set_palette(adp, ((video_color_palette_t *)arg)->index, 2925 ((video_color_palette_t *)arg)->count, 2926 ((video_color_palette_t *)arg)->red, 2927 ((video_color_palette_t *)arg)->green, 2928 ((video_color_palette_t *)arg)->blue, 2929 ((video_color_palette_t *)arg)->transparent); 2930 2931 case FBIOGTYPE: /* get frame buffer type info. */ 2932 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type); 2933 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height; 2934 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width; 2935 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth; 2936 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8)) 2937 ((struct fbtype *)arg)->fb_cmsize = 0; 2938 else 2939 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth; 2940 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size; 2941 return 0; 2942 2943 case FBIOGETCMAP: /* get color palette */ 2944 return get_palette(adp, ((struct fbcmap *)arg)->index, 2945 ((struct fbcmap *)arg)->count, 2946 ((struct fbcmap *)arg)->red, 2947 ((struct fbcmap *)arg)->green, 2948 ((struct fbcmap *)arg)->blue, NULL); 2949 2950 case FBIOPUTCMAP: /* set color palette */ 2951 return set_palette(adp, ((struct fbcmap *)arg)->index, 2952 ((struct fbcmap *)arg)->count, 2953 ((struct fbcmap *)arg)->red, 2954 ((struct fbcmap *)arg)->green, 2955 ((struct fbcmap *)arg)->blue, NULL); 2956 2957 default: 2958 return fb_commonioctl(adp, cmd, arg); 2959 } 2960 } 2961 2962 static void 2963 dump_buffer(u_char *buf, size_t len) 2964 { 2965 int i; 2966 2967 for(i = 0; i < len;) { 2968 printf("%02x ", buf[i]); 2969 if ((++i % 16) == 0) 2970 printf("\n"); 2971 } 2972 } 2973 2974 /* 2975 * diag(): 2976 * Print some information about the video adapter and video modes, 2977 * with requested level of details. 2978 * 2979 * all adapters 2980 */ 2981 static int 2982 vga_diag(video_adapter_t *adp, int level) 2983 { 2984 u_char *mp; 2985 #if FB_DEBUG > 1 2986 video_info_t info; 2987 int i; 2988 #endif 2989 2990 if (!vga_init_done) 2991 return ENXIO; 2992 2993 #if FB_DEBUG > 1 2994 #ifndef VGA_NO_BIOS 2995 printf("vga: RTC equip. code:0x%02x, DCC code:0x%02x\n", 2996 rtcin(RTC_EQUIPMENT), readb(BIOS_PADDRTOVADDR(0x488))); 2997 printf("vga: CRTC:0x%x, video option:0x%02x, ", 2998 readw(BIOS_PADDRTOVADDR(0x463)), 2999 readb(BIOS_PADDRTOVADDR(0x487))); 3000 printf("rows:%d, cols:%d, font height:%d\n", 3001 readb(BIOS_PADDRTOVADDR(0x44a)), 3002 readb(BIOS_PADDRTOVADDR(0x484)) + 1, 3003 readb(BIOS_PADDRTOVADDR(0x485))); 3004 #endif /* VGA_NO_BIOS */ 3005 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 3006 printf("vga: param table EGA/VGA:%p", video_mode_ptr); 3007 printf(", CGA/MDA:%p\n", video_mode_ptr2); 3008 printf("vga: rows_offset:%d\n", rows_offset); 3009 #endif 3010 #endif /* FB_DEBUG > 1 */ 3011 3012 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level); 3013 3014 #if FB_DEBUG > 1 3015 if (adp->va_flags & V_ADP_MODECHANGE) { 3016 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 3017 if (bios_vmode[i].vi_mode == NA) 3018 continue; 3019 if (get_mode_param(bios_vmode[i].vi_mode) == NULL) 3020 continue; 3021 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level); 3022 } 3023 } else { 3024 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */ 3025 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level); 3026 } 3027 #endif /* FB_DEBUG > 1 */ 3028 3029 if ((adp->va_type != KD_EGA) && (adp->va_type != KD_VGA)) 3030 return 0; 3031 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 3032 if (video_mode_ptr == NULL) 3033 printf("vga%d: %s: WARNING: video mode switching is not " 3034 "fully supported on this adapter\n", 3035 adp->va_unit, adp->va_name); 3036 #endif 3037 if (level <= 0) 3038 return 0; 3039 3040 if (adp->va_type == KD_VGA) { 3041 printf("VGA parameters upon power-up\n"); 3042 dump_buffer(adpstate.regs, sizeof(adpstate.regs)); 3043 printf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode); 3044 dump_buffer(adpstate2.regs, sizeof(adpstate2.regs)); 3045 } 3046 3047 mp = get_mode_param(adp->va_initial_mode); 3048 if (mp == NULL) /* this shouldn't be happening */ 3049 return 0; 3050 printf("EGA/VGA parameters to be used for mode %d\n", adp->va_initial_mode); 3051 dump_buffer(mp, V_MODE_PARAM_SIZE); 3052 3053 return 0; 3054 } 3055