1 /*- 2 * (MPSAFE ?) 3 * 4 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 5 * Copyright (c) 1992-1998 Søren Schmidt 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer as 13 * the first lines of this file unmodified. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 * 31 * $FreeBSD: src/sys/dev/fb/vga.c,v 1.9.2.1 2001/08/11 02:58:44 yokota Exp $ 32 */ 33 34 #include "opt_vga.h" 35 #include "opt_fb.h" 36 #ifndef FB_DEBUG 37 #define FB_DEBUG 0 38 #endif 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/kernel.h> 43 #include <sys/conf.h> 44 #include <sys/fcntl.h> 45 #include <sys/malloc.h> 46 #include <sys/fbio.h> 47 #include <sys/thread2.h> 48 49 #include <bus/isa/isareg.h> 50 51 #include <machine/clock.h> 52 #include <machine/md_var.h> 53 #include <machine/framebuffer.h> 54 #ifdef __x86_64__ 55 #include <machine/pc/bios.h> 56 #endif 57 58 #include <vm/vm.h> 59 #include <vm/vm_param.h> 60 #include <vm/pmap.h> 61 62 #include "fbreg.h" 63 #include "vgareg.h" 64 65 #ifndef VGA_DEBUG 66 #define VGA_DEBUG 0 67 #endif 68 69 int 70 vga_probe_unit(int unit, video_adapter_t *buf, int flags) 71 { 72 video_adapter_t *adp; 73 video_switch_t *sw; 74 int error; 75 76 sw = vid_get_switch(VGA_DRIVER_NAME); 77 if (sw == NULL) 78 return 0; 79 error = (*sw->probe)(unit, &adp, NULL, flags); 80 if (error) 81 return error; 82 bcopy(adp, buf, sizeof(*buf)); 83 return 0; 84 } 85 86 int 87 vga_attach_unit(int unit, vga_softc_t *sc, int flags) 88 { 89 video_switch_t *sw; 90 int error; 91 92 sw = vid_get_switch(VGA_DRIVER_NAME); 93 if (sw == NULL) 94 return ENXIO; 95 96 error = (*sw->probe)(unit, &sc->adp, NULL, flags); 97 if (error) 98 return error; 99 return (*sw->init)(unit, sc->adp, flags); 100 } 101 102 /* cdev driver functions */ 103 104 #ifdef FB_INSTALL_CDEV 105 106 struct ucred; 107 108 int 109 vga_open(cdev_t dev, vga_softc_t *sc, int flag, int mode, struct ucred *cred) 110 { 111 if (sc == NULL) 112 return ENXIO; 113 if (mode & (O_CREAT | O_APPEND | O_TRUNC)) 114 return ENODEV; 115 116 return genfbopen(&sc->gensc, sc->adp, flag, mode, cred); 117 } 118 119 int 120 vga_close(cdev_t dev, vga_softc_t *sc, int flag, int mode) 121 { 122 return genfbclose(&sc->gensc, sc->adp, flag, mode); 123 } 124 125 int 126 vga_read(cdev_t dev, vga_softc_t *sc, struct uio *uio, int flag) 127 { 128 return genfbread(&sc->gensc, sc->adp, uio, flag); 129 } 130 131 int 132 vga_write(cdev_t dev, vga_softc_t *sc, struct uio *uio, int flag) 133 { 134 return genfbread(&sc->gensc, sc->adp, uio, flag); 135 } 136 137 int 138 vga_ioctl(cdev_t dev, vga_softc_t *sc, u_long cmd, caddr_t arg, int flag, 139 struct ucred *cred) 140 { 141 return genfbioctl(&sc->gensc, sc->adp, cmd, arg, flag, cred); 142 } 143 144 int 145 vga_mmap(cdev_t dev, vga_softc_t *sc, vm_offset_t offset, int prot) 146 { 147 return genfbmmap(&sc->gensc, sc->adp, offset, prot); 148 } 149 150 #endif /* FB_INSTALL_CDEV */ 151 152 /* LOW-LEVEL */ 153 154 #define probe_done(adp) ((adp)->va_flags & V_ADP_PROBED) 155 #define init_done(adp) ((adp)->va_flags & V_ADP_INITIALIZED) 156 #define config_done(adp) ((adp)->va_flags & V_ADP_REGISTERED) 157 158 /* various sizes */ 159 #define V_MODE_MAP_SIZE (M_VGA_CG320 + 1) 160 #define V_MODE_PARAM_SIZE 64 161 162 /* video adapter state buffer */ 163 struct adp_state { 164 int sig; 165 #define V_STATE_SIG 0x736f6962 166 u_char regs[V_MODE_PARAM_SIZE]; 167 }; 168 typedef struct adp_state adp_state_t; 169 170 /* 171 * NOTE: `va_window' should have a virtual address, but is initialized 172 * with a physical address in the following table, as verify_adapter() 173 * will perform address conversion at run-time. 174 */ 175 static video_adapter_t biosadapter = { 176 0, KD_VGA, VGA_DRIVER_NAME, 0, 0, V_ADP_COLOR, IO_VGA, 32, 177 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 178 0, 0, 0, M_VGA_C80x25, M_C80x25, M_VGA_C80x25 179 }; 180 181 /* video driver declarations */ 182 static int vga_configure(int flags); 183 static int vga_error(void); 184 static vi_probe_t vga_probe; 185 static vi_init_t vga_init; 186 static vi_get_info_t vga_get_info; 187 static vi_query_mode_t vga_query_mode; 188 static vi_set_mode_t vga_set_mode; 189 static vi_save_font_t vga_save_font; 190 static vi_load_font_t vga_load_font; 191 static vi_show_font_t vga_show_font; 192 static vi_save_palette_t vga_save_palette; 193 static vi_load_palette_t vga_load_palette; 194 static vi_set_border_t vga_set_border; 195 static vi_save_state_t vga_save_state; 196 static vi_load_state_t vga_load_state; 197 static vi_set_win_org_t vga_set_origin; 198 static vi_read_hw_cursor_t vga_read_hw_cursor; 199 static vi_set_hw_cursor_t vga_set_hw_cursor; 200 static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape; 201 static vi_blank_display_t vga_blank_display; 202 static vi_mmap_t vga_mmap_buf; 203 static vi_ioctl_t vga_dev_ioctl; 204 #ifndef VGA_NO_MODE_CHANGE 205 static vi_clear_t vga_clear; 206 static vi_fill_rect_t vga_fill_rect; 207 static vi_bitblt_t vga_bitblt; 208 #else /* VGA_NO_MODE_CHANGE */ 209 #define vga_clear (vi_clear_t *)vga_error 210 #define vga_fill_rect (vi_fill_rect_t *)vga_error 211 #define vga_bitblt (vi_bitblt_t *)vga_error 212 #endif 213 static vi_diag_t vga_diag; 214 215 static video_switch_t vgavidsw = { 216 vga_probe, 217 vga_init, 218 vga_get_info, 219 vga_query_mode, 220 vga_set_mode, 221 vga_save_font, 222 vga_load_font, 223 vga_show_font, 224 vga_save_palette, 225 vga_load_palette, 226 vga_set_border, 227 vga_save_state, 228 vga_load_state, 229 vga_set_origin, 230 vga_read_hw_cursor, 231 vga_set_hw_cursor, 232 vga_set_hw_cursor_shape, 233 vga_blank_display, 234 vga_mmap_buf, 235 vga_dev_ioctl, 236 vga_clear, 237 vga_fill_rect, 238 vga_bitblt, 239 vga_error, 240 vga_error, 241 vga_diag, 242 }; 243 244 VIDEO_DRIVER(vga, vgavidsw, vga_configure); 245 246 /* VGA BIOS standard video modes */ 247 #define EOT (-1) 248 #define NA (-2) 249 250 static video_info_t bios_vmode[] = { 251 /* CGA */ 252 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1, 253 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 254 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1, 255 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 256 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1, 257 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 258 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1, 259 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 260 /* EGA */ 261 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1, 262 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 263 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1, 264 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 265 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1, 266 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 267 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1, 268 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 269 /* VGA */ 270 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1, 271 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 272 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1, 273 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 274 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1, 275 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 276 /* MDA */ 277 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1, 278 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 279 /* EGA */ 280 { M_ENH_B80x43, 0, 80, 43, 8, 8, 2, 1, 281 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 282 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1, 283 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 284 /* VGA */ 285 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1, 286 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 287 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1, 288 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 289 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1, 290 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 291 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1, 292 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 293 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1, 294 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 295 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1, 296 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 297 298 #ifndef VGA_NO_MODE_CHANGE 299 300 #ifdef VGA_WIDTH90 301 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1, 302 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 303 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1, 304 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 305 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1, 306 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 307 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1, 308 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 309 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1, 310 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 311 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1, 312 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 313 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1, 314 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 315 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1, 316 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 317 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1, 318 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 319 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1, 320 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 321 #endif /* VGA_WIDTH90 */ 322 323 /* CGA */ 324 { M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 325 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 326 { M_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 327 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 328 { M_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1, 329 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 330 /* EGA */ 331 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4, 332 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 333 V_INFO_MM_PLANAR }, 334 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4, 335 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 336 V_INFO_MM_PLANAR }, 337 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 338 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 , 339 V_INFO_MM_PLANAR }, 340 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 341 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 342 V_INFO_MM_PLANAR }, 343 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2, 344 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 345 V_INFO_MM_PLANAR }, 346 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 347 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 348 V_INFO_MM_PLANAR }, 349 /* VGA */ 350 { M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 351 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 352 V_INFO_MM_PLANAR }, 353 { M_CG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 354 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 355 V_INFO_MM_PLANAR }, 356 { M_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1, 357 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 358 V_INFO_MM_PACKED, 1 }, 359 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 4, 360 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 361 V_INFO_MM_VGAX, 1 }, 362 #endif /* VGA_NO_MODE_CHANGE */ 363 364 { EOT }, 365 }; 366 367 static int vga_init_done = FALSE; 368 #ifndef VGA_NO_MODE_CHANGE 369 static u_char *video_mode_ptr = NULL; 370 #endif 371 static u_char *mode_map[V_MODE_MAP_SIZE]; 372 static adp_state_t adpstate; 373 static adp_state_t adpstate2; 374 static int rows_offset = 1; 375 376 /* local macros and functions */ 377 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 378 379 #ifndef VGA_NO_MODE_CHANGE 380 static void map_mode_table(u_char **, u_char *); 381 static int map_mode_num(int); 382 static int map_bios_mode_num(int); 383 #endif 384 static u_char *get_mode_param(int); 385 static int verify_adapter(video_adapter_t *); 386 static void update_adapter_info(video_adapter_t *, video_info_t *); 387 static int probe_adapters(void); 388 static int set_line_length(video_adapter_t *, int); 389 static int set_display_start(video_adapter_t *, int, int); 390 391 #ifndef VGA_NO_MODE_CHANGE 392 #ifdef VGA_WIDTH90 393 static void set_width90(adp_state_t *); 394 #endif 395 #endif /* !VGA_NO_MODE_CHANGE */ 396 397 #ifndef VGA_NO_FONT_LOADING 398 #define PARAM_BUFSIZE 6 399 static void set_font_mode(video_adapter_t *, u_char *); 400 static void set_normal_mode(video_adapter_t *, u_char *); 401 #endif 402 403 #ifndef VGA_NO_MODE_CHANGE 404 static void filll_io(int, vm_offset_t, size_t); 405 static void planar_fill(video_adapter_t *, int); 406 static void packed_fill(video_adapter_t *, int); 407 static void direct_fill(video_adapter_t *, int); 408 #endif /* !VGA_NO_MODE_CHANGE */ 409 410 #define ISMAPPED(pa, width) \ 411 (((pa) <= (u_long)0x1000 - (width)) \ 412 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width))) 413 414 #define prologue(adp, flag, err) \ 415 if (!vga_init_done || !((adp)->va_flags & (flag))) \ 416 return (err) 417 418 /* a backdoor for the console driver */ 419 static int 420 vga_configure(int flags) 421 { 422 /* No VGA when booted via UEFI */ 423 if (probe_efi_fb(0) == 0) 424 return 0; /* XXX nobody uses this return value */ 425 426 /* XXX Also abort if VGA isn't present according to ACPI FADT BootFlags */ 427 428 probe_adapters(); 429 if (probe_done(&biosadapter)) { 430 biosadapter.va_flags |= V_ADP_INITIALIZED; 431 if (!config_done(&biosadapter) && !(vid_register(&biosadapter) < 0)) 432 biosadapter.va_flags |= V_ADP_REGISTERED; 433 } 434 435 return 1; 436 } 437 438 /* local subroutines */ 439 440 #ifndef VGA_NO_MODE_CHANGE 441 /* construct the mode parameter map (accept 40x25, 80x25 and 80x30 modes) */ 442 static void 443 map_mode_table(u_char *map[], u_char *table) 444 { 445 int i, valid; 446 447 for(i = 0; i < V_MODE_MAP_SIZE; ++i) { 448 map[i] = table + i*V_MODE_PARAM_SIZE; 449 valid = 0; 450 if ((map[i][0] == 40 && map[i][1] == 24) || 451 (map[i][0] == 80 && (map[i][1] == 24 || map[i][1] == 29))) 452 valid++; 453 if (!valid) 454 map[i] = NULL; 455 } 456 } 457 #endif /* !VGA_NO_MODE_CHANGE */ 458 459 #ifndef VGA_NO_MODE_CHANGE 460 /* map the non-standard video mode to a known mode number */ 461 static int 462 map_mode_num(int mode) 463 { 464 static struct { 465 int from; 466 int to; 467 } mode_map[] = { 468 { M_ENH_B80x43, M_ENH_B80x25 }, 469 { M_ENH_C80x43, M_ENH_C80x25 }, 470 { M_VGA_M80x30, M_VGA_M80x25 }, 471 { M_VGA_C80x30, M_VGA_C80x25 }, 472 { M_VGA_M80x50, M_VGA_M80x25 }, 473 { M_VGA_C80x50, M_VGA_C80x25 }, 474 { M_VGA_M80x60, M_VGA_M80x25 }, 475 { M_VGA_C80x60, M_VGA_C80x25 }, 476 #ifdef VGA_WIDTH90 477 { M_VGA_M90x25, M_VGA_M80x25 }, 478 { M_VGA_C90x25, M_VGA_C80x25 }, 479 { M_VGA_M90x30, M_VGA_M80x25 }, 480 { M_VGA_C90x30, M_VGA_C80x25 }, 481 { M_VGA_M90x43, M_ENH_B80x25 }, 482 { M_VGA_C90x43, M_ENH_C80x25 }, 483 { M_VGA_M90x50, M_VGA_M80x25 }, 484 { M_VGA_C90x50, M_VGA_C80x25 }, 485 { M_VGA_M90x60, M_VGA_M80x25 }, 486 { M_VGA_C90x60, M_VGA_C80x25 }, 487 #endif 488 { M_VGA_MODEX, M_VGA_CG320 }, 489 }; 490 int i; 491 492 for (i = 0; i < NELEM(mode_map); ++i) { 493 if (mode_map[i].from == mode) 494 return mode_map[i].to; 495 } 496 return mode; 497 } 498 499 /* turn the BIOS video number into our video mode number */ 500 static int 501 map_bios_mode_num(int bios_mode) 502 { 503 static int vga_modes[20] = { 504 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */ 505 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */ 506 M_BG320, M_CG320, 507 M_BG640, 508 M_VGA_M80x25, /* 7 */ 509 8, 9, 10, 11, 12, 510 M_CG320_D, 511 M_CG640_E, 512 M_ENHMONOAPA2, 513 M_ENH_CG640, 514 M_BG640x480, M_CG640x480, 515 M_VGA_CG320, 516 }; 517 518 if (bios_mode < NELEM(vga_modes)) 519 return vga_modes[bios_mode]; 520 521 return M_VGA_C80x25; 522 } 523 #endif /* !VGA_NO_MODE_CHANGE */ 524 525 /* look up a parameter table entry */ 526 static u_char * 527 get_mode_param(int mode) 528 { 529 #ifndef VGA_NO_MODE_CHANGE 530 if (mode >= V_MODE_MAP_SIZE) 531 mode = map_mode_num(mode); 532 #endif 533 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE)) 534 return mode_map[mode]; 535 else 536 return NULL; 537 } 538 539 static int 540 verify_adapter(video_adapter_t *adp) 541 { 542 vm_offset_t buf; 543 u_int16_t v; 544 #ifndef VGA_NO_MODE_CHANGE 545 u_int32_t p; 546 #endif 547 548 buf = BIOS_PADDRTOVADDR(adp->va_window); 549 v = readw(buf); 550 writew(buf, 0xA55A); 551 if (readw(buf) != 0xA55A) 552 return ENXIO; 553 writew(buf, v); 554 555 outb(CRTC, 7); 556 if (inb(CRTC) != 7) 557 return ENXIO; 558 559 adp->va_flags |= V_ADP_STATELOAD | V_ADP_STATESAVE | V_ADP_PALETTE | 560 V_ADP_BORDER; 561 562 #ifndef VGA_NO_MODE_CHANGE 563 /* get the BIOS video mode pointer */ 564 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8); 565 p = BIOS_SADDRTOLADDR(p); 566 if (ISMAPPED(p, sizeof(u_int32_t))) { 567 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p); 568 p = BIOS_SADDRTOLADDR(p); 569 if (ISMAPPED(p, V_MODE_PARAM_SIZE)) 570 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p); 571 } 572 #endif 573 574 return 0; 575 } 576 577 static void 578 update_adapter_info(video_adapter_t *adp, video_info_t *info) 579 { 580 adp->va_flags |= V_ADP_COLOR; 581 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window); 582 adp->va_window_size = info->vi_window_size; 583 adp->va_window_gran = info->vi_window_gran; 584 adp->va_window_orig = 0; 585 /* XXX */ 586 adp->va_buffer = info->vi_buffer; 587 adp->va_buffer_size = info->vi_buffer_size; 588 if (info->vi_mem_model == V_INFO_MM_VGAX) { 589 adp->va_line_width = info->vi_width/2; 590 } else if (info->vi_flags & V_INFO_GRAPHICS) { 591 switch (info->vi_depth/info->vi_planes) { 592 case 1: 593 adp->va_line_width = info->vi_width/8; 594 break; 595 case 2: 596 adp->va_line_width = info->vi_width/4; 597 break; 598 case 4: 599 adp->va_line_width = info->vi_width/2; 600 break; 601 case 8: 602 default: /* shouldn't happen */ 603 adp->va_line_width = info->vi_width; 604 break; 605 } 606 } else { 607 adp->va_line_width = info->vi_width; 608 } 609 adp->va_disp_start.x = 0; 610 adp->va_disp_start.y = 0; 611 bcopy(info, &adp->va_info, sizeof(adp->va_info)); 612 } 613 614 /* probe video adapters and return the number of detected adapters */ 615 static int 616 probe_adapters(void) 617 { 618 video_adapter_t *adp; 619 video_info_t info; 620 #ifndef VGA_NO_MODE_CHANGE 621 u_char *mp; 622 #endif 623 int i; 624 625 /* do this test only once */ 626 if (vga_init_done) 627 return 1; 628 vga_init_done = TRUE; 629 630 if (verify_adapter(&biosadapter) != 0) 631 return 0; 632 633 biosadapter.va_flags |= V_ADP_PROBED; 634 #ifndef VGA_NO_MODE_CHANGE 635 biosadapter.va_initial_bios_mode = readb(BIOS_PADDRTOVADDR(0x449)); 636 biosadapter.va_mode = biosadapter.va_initial_mode = 637 map_bios_mode_num(biosadapter.va_initial_bios_mode); 638 #endif 639 640 /* 641 * Ensure a zero start address. The registers are w/o for old 642 * hardware so it's too hard to relocate the active screen 643 * memory. 644 * This must be done before vga_save_state() for VGA. 645 */ 646 outb(CRTC, 12); 647 outb(CRTC + 1, 0); 648 outb(CRTC, 13); 649 outb(CRTC + 1, 0); 650 651 /* the video mode parameter table in VGA BIOS */ 652 /* NOTE: there can be only one VGA recognized by the video BIOS. 653 */ 654 adp = &biosadapter; 655 bzero(mode_map, sizeof(mode_map)); 656 vga_save_state(adp, &adpstate, sizeof(adpstate)); 657 for(i = 0; i < 16; i++) 658 adp->va_palette_regs[i] = adpstate.regs[35 + i]; 659 #ifdef VGA_NO_MODE_CHANGE 660 mode_map[adp->va_initial_mode] = adpstate.regs; 661 rows_offset = 1; 662 #else /* !VGA_NO_MODE_CHANGE */ 663 if (video_mode_ptr == NULL) { 664 mode_map[adp->va_initial_mode] = adpstate.regs; 665 rows_offset = 1; 666 } else { 667 /* discard modes that we are not familiar with */ 668 map_mode_table(mode_map, video_mode_ptr); 669 mp = get_mode_param(adp->va_initial_mode); 670 #ifndef VGA_KEEP_POWERON_MODE 671 if (mp != NULL) { 672 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs)); 673 rows_offset = adpstate.regs[1] + 1 - mp[1]; 674 } else 675 #endif 676 { 677 mode_map[adp->va_initial_mode] = adpstate.regs; 678 rows_offset = 1; 679 } 680 } 681 #endif /* VGA_NO_MODE_CHANGE */ 682 683 #ifndef VGA_NO_MODE_CHANGE 684 adp->va_flags |= V_ADP_MODECHANGE; 685 #endif 686 #ifndef VGA_NO_FONT_LOADING 687 adp->va_flags |= V_ADP_FONT; 688 #endif 689 690 /* XXX remove conflicting modes */ 691 for (i = 0; i < M_VGA_CG320; i++) { 692 if (vga_get_info(&biosadapter, i, &info)) 693 continue; 694 if ((info.vi_flags & V_INFO_COLOR) != V_ADP_COLOR) 695 mode_map[i] = NULL; 696 } 697 698 /* buffer address */ 699 vga_get_info(&biosadapter, biosadapter.va_initial_mode, &info); 700 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 701 update_adapter_info(&biosadapter, &info); 702 703 /* 704 * XXX: we should verify the following values for the primary adapter... 705 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463); 706 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02) 707 * ? 0 : V_ADP_COLOR; 708 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a); 709 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484); 710 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485); 711 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c); 712 */ 713 714 return 1; 715 } 716 717 /* set the scan line length in pixel */ 718 static int 719 set_line_length(video_adapter_t *adp, int pixel) 720 { 721 u_char *mp; 722 int ppw; /* pixels per word */ 723 int bpl; /* bytes per line */ 724 int count; 725 726 mp = get_mode_param(adp->va_mode); 727 if (mp == NULL) 728 return EINVAL; 729 730 switch (adp->va_info.vi_mem_model) { 731 case V_INFO_MM_PLANAR: 732 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes); 733 count = (pixel + ppw - 1)/ppw/2; 734 bpl = ((pixel + ppw - 1)/ppw/2)*4; 735 break; 736 case V_INFO_MM_PACKED: 737 count = (pixel + 7)/8; 738 bpl = rounddown(pixel + 7, 8); 739 break; 740 case V_INFO_MM_TEXT: 741 count = (pixel + 7)/8; /* columns */ 742 bpl = (pixel + 7)/8; /* columns */ 743 break; 744 default: 745 return ENODEV; 746 } 747 748 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */ 749 count *= 2; /* byte mode */ 750 outb(CRTC, 0x13); 751 outb(CRTC + 1, count); 752 adp->va_line_width = bpl; 753 754 return 0; 755 } 756 757 static int 758 set_display_start(video_adapter_t *adp, int x, int y) 759 { 760 int off; /* byte offset (graphics mode)/word offset (text mode) */ 761 int poff; /* pixel offset */ 762 int roff; /* row offset */ 763 int ppb; /* pixels per byte */ 764 765 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) { 766 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes); 767 off = y*adp->va_line_width + x/ppb; 768 roff = 0; 769 poff = x%ppb; 770 } else { 771 outb(TSIDX, 1); 772 if (inb(TSREG) & 1) 773 ppb = 9; 774 else 775 ppb = 8; 776 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb; 777 roff = y%adp->va_info.vi_cheight; 778 /* FIXME: is this correct? XXX */ 779 if (ppb == 8) 780 poff = x%ppb; 781 else 782 poff = (x + 8)%ppb; 783 } 784 785 /* start address */ 786 outb(CRTC, 0xc); /* high */ 787 outb(CRTC + 1, off >> 8); 788 outb(CRTC, 0xd); /* low */ 789 outb(CRTC + 1, off & 0xff); 790 791 /* horizontal pel pan */ 792 inb(CRTC + 6); 793 outb(ATC, 0x13 | 0x20); 794 outb(ATC, poff); 795 inb(CRTC + 6); 796 outb(ATC, 0x20); 797 798 /* preset row scan */ 799 outb(CRTC, 8); 800 outb(CRTC + 1, roff); 801 802 adp->va_disp_start.x = x; 803 adp->va_disp_start.y = y; 804 return 0; 805 } 806 807 #ifndef VGA_NO_MODE_CHANGE 808 #if defined(__x86_64__) /* XXX */ 809 static void 810 fill(int val, void *d, size_t size) 811 { 812 u_char *p = d; 813 814 while (size-- > 0) 815 *p++ = val; 816 } 817 #endif /* __x86_64__ */ 818 819 static void 820 filll_io(int val, vm_offset_t d, size_t size) 821 { 822 while (size-- > 0) { 823 writel(d, val); 824 d += sizeof(u_int32_t); 825 } 826 } 827 #endif /* !VGA_NO_MODE_CHANGE */ 828 829 /* entry points */ 830 831 static int 832 vga_error(void) 833 { 834 return ENODEV; 835 } 836 837 static int 838 vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 839 { 840 /* No VGA when booted via UEFI */ 841 if (probe_efi_fb(0) == 0) 842 return (ENXIO); 843 844 /* XXX Also abort if VGA isn't present according to ACPI FADT BootFlags */ 845 846 probe_adapters(); 847 if (unit != 0) 848 return ENXIO; 849 850 *adpp = &biosadapter; 851 852 return 0; 853 } 854 855 static int 856 vga_init(int unit, video_adapter_t *adp, int flags) 857 { 858 if ((unit != 0) || (adp == NULL) || !probe_done(adp)) 859 return ENXIO; 860 861 if (!init_done(adp)) { 862 /* nothing to do really... */ 863 adp->va_flags |= V_ADP_INITIALIZED; 864 } 865 866 if (!config_done(adp)) { 867 if (vid_register(adp) < 0) 868 return ENXIO; 869 adp->va_flags |= V_ADP_REGISTERED; 870 } 871 872 return 0; 873 } 874 875 /* 876 * get_info(): 877 * Return the video_info structure of the requested video mode. 878 */ 879 static int 880 vga_get_info(video_adapter_t *adp, int mode, video_info_t *info) 881 { 882 int i; 883 884 if (!vga_init_done) 885 return ENXIO; 886 887 #ifndef VGA_NO_MODE_CHANGE 888 if (adp->va_flags & V_ADP_MODECHANGE) { 889 /* 890 * If the parameter table entry for this mode is not found, 891 * the mode is not supported... 892 */ 893 if (get_mode_param(mode) == NULL) 894 return EINVAL; 895 } else 896 #endif /* VGA_NO_MODE_CHANGE */ 897 { 898 /* 899 * Even if we don't support video mode switching on this adapter, 900 * the information on the initial (thus current) video mode 901 * should be made available. 902 */ 903 if (mode != adp->va_initial_mode) 904 return EINVAL; 905 } 906 907 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 908 if (bios_vmode[i].vi_mode == NA) 909 continue; 910 if (mode == bios_vmode[i].vi_mode) { 911 *info = bios_vmode[i]; 912 /* XXX */ 913 info->vi_buffer_size = info->vi_window_size*info->vi_planes; 914 return 0; 915 } 916 } 917 return EINVAL; 918 } 919 920 /* 921 * query_mode(): 922 * Find a video mode matching the requested parameters. 923 * Fields filled with 0 are considered "don't care" fields and 924 * match any modes. 925 */ 926 static int 927 vga_query_mode(video_adapter_t *adp, video_info_t *info) 928 { 929 int i; 930 931 if (!vga_init_done) 932 return ENXIO; 933 934 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 935 if (bios_vmode[i].vi_mode == NA) 936 continue; 937 938 if ((info->vi_width != 0) 939 && (info->vi_width != bios_vmode[i].vi_width)) 940 continue; 941 if ((info->vi_height != 0) 942 && (info->vi_height != bios_vmode[i].vi_height)) 943 continue; 944 if ((info->vi_cwidth != 0) 945 && (info->vi_cwidth != bios_vmode[i].vi_cwidth)) 946 continue; 947 if ((info->vi_cheight != 0) 948 && (info->vi_cheight != bios_vmode[i].vi_cheight)) 949 continue; 950 if ((info->vi_depth != 0) 951 && (info->vi_depth != bios_vmode[i].vi_depth)) 952 continue; 953 if ((info->vi_planes != 0) 954 && (info->vi_planes != bios_vmode[i].vi_planes)) 955 continue; 956 /* XXX: should check pixel format, memory model */ 957 if ((info->vi_flags != 0) 958 && (info->vi_flags != bios_vmode[i].vi_flags)) 959 continue; 960 961 /* verify if this mode is supported on this adapter */ 962 if (vga_get_info(adp, bios_vmode[i].vi_mode, info)) 963 continue; 964 return 0; 965 } 966 return ENODEV; 967 } 968 969 /* 970 * set_mode(): 971 * Change the video mode. 972 */ 973 974 #ifndef VGA_NO_MODE_CHANGE 975 #ifdef VGA_WIDTH90 976 static void 977 set_width90(adp_state_t *params) 978 { 979 /* 980 * Based on code submitted by Kelly Yancey (kbyanc@freedomnet.com) 981 * and alexv@sui.gda.itesm.mx. 982 */ 983 params->regs[5] |= 1; /* toggle 8 pixel wide fonts */ 984 params->regs[10+0x0] = 0x6b; 985 params->regs[10+0x1] = 0x59; 986 params->regs[10+0x2] = 0x5a; 987 params->regs[10+0x3] = 0x8e; 988 params->regs[10+0x4] = 0x5e; 989 params->regs[10+0x5] = 0x8a; 990 params->regs[10+0x13] = 45; 991 params->regs[35+0x13] = 0; 992 } 993 #endif /* VGA_WIDTH90 */ 994 #endif /* !VGA_NO_MODE_CHANGE */ 995 996 static int 997 vga_set_mode(video_adapter_t *adp, int mode) 998 { 999 #ifndef VGA_NO_MODE_CHANGE 1000 video_info_t info; 1001 adp_state_t params; 1002 1003 prologue(adp, V_ADP_MODECHANGE, ENODEV); 1004 1005 if (vga_get_info(adp, mode, &info)) 1006 return EINVAL; 1007 1008 lwkt_gettoken(&vga_token); 1009 1010 #if VGA_DEBUG > 1 1011 kprintf("vga_set_mode(): setting mode %d\n", mode); 1012 #endif 1013 1014 params.sig = V_STATE_SIG; 1015 bcopy(get_mode_param(mode), params.regs, sizeof(params.regs)); 1016 1017 switch (mode) { 1018 #ifdef VGA_WIDTH90 1019 case M_VGA_C90x60: case M_VGA_M90x60: 1020 set_width90(¶ms); 1021 /* FALLTHROUGH */ 1022 #endif 1023 case M_VGA_C80x60: case M_VGA_M80x60: 1024 params.regs[2] = 0x08; 1025 params.regs[19] = 0x47; 1026 goto special_480l; 1027 1028 #ifdef VGA_WIDTH90 1029 case M_VGA_C90x30: case M_VGA_M90x30: 1030 set_width90(¶ms); 1031 /* FALLTHROUGH */ 1032 #endif 1033 case M_VGA_C80x30: case M_VGA_M80x30: 1034 params.regs[19] = 0x4f; 1035 special_480l: 1036 params.regs[9] |= 0xc0; 1037 params.regs[16] = 0x08; 1038 params.regs[17] = 0x3e; 1039 params.regs[26] = 0xea; 1040 params.regs[28] = 0xdf; 1041 params.regs[31] = 0xe7; 1042 params.regs[32] = 0x04; 1043 goto setup_mode; 1044 1045 #ifdef VGA_WIDTH90 1046 case M_VGA_C90x43: case M_VGA_M90x43: 1047 set_width90(¶ms); 1048 /* FALLTHROUGH */ 1049 #endif 1050 case M_ENH_C80x43: case M_ENH_B80x43: 1051 params.regs[28] = 87; 1052 goto special_80x50; 1053 1054 #ifdef VGA_WIDTH90 1055 case M_VGA_C90x50: case M_VGA_M90x50: 1056 set_width90(¶ms); 1057 /* FALLTHROUGH */ 1058 #endif 1059 case M_VGA_C80x50: case M_VGA_M80x50: 1060 special_80x50: 1061 params.regs[2] = 8; 1062 params.regs[19] = 7; 1063 goto setup_mode; 1064 1065 #ifdef VGA_WIDTH90 1066 case M_VGA_C90x25: case M_VGA_M90x25: 1067 set_width90(¶ms); 1068 /* FALLTHROUGH */ 1069 #endif 1070 case M_VGA_C40x25: case M_VGA_C80x25: 1071 case M_VGA_M80x25: 1072 case M_B40x25: case M_C40x25: 1073 case M_B80x25: case M_C80x25: 1074 case M_ENH_B40x25: case M_ENH_C40x25: 1075 case M_ENH_B80x25: case M_ENH_C80x25: 1076 case M_EGAMONO80x25: 1077 1078 setup_mode: 1079 vga_load_state(adp, ¶ms); 1080 break; 1081 1082 case M_VGA_MODEX: 1083 /* "unchain" the VGA mode */ 1084 params.regs[5-1+0x04] &= 0xf7; 1085 params.regs[5-1+0x04] |= 0x04; 1086 /* turn off doubleword mode */ 1087 params.regs[10+0x14] &= 0xbf; 1088 /* turn off word addressing */ 1089 params.regs[10+0x17] |= 0x40; 1090 /* set logical screen width */ 1091 params.regs[10+0x13] = 80; 1092 /* set 240 lines */ 1093 params.regs[10+0x11] = 0x2c; 1094 params.regs[10+0x06] = 0x0d; 1095 params.regs[10+0x07] = 0x3e; 1096 params.regs[10+0x10] = 0xea; 1097 params.regs[10+0x11] = 0xac; 1098 params.regs[10+0x12] = 0xdf; 1099 params.regs[10+0x15] = 0xe7; 1100 params.regs[10+0x16] = 0x06; 1101 /* set vertical sync polarity to reflect aspect ratio */ 1102 params.regs[9] = 0xe3; 1103 goto setup_grmode; 1104 1105 case M_BG320: case M_CG320: case M_BG640: 1106 case M_CG320_D: case M_CG640_E: 1107 case M_CG640x350: case M_ENH_CG640: 1108 case M_BG640x480: case M_CG640x480: case M_VGA_CG320: 1109 1110 setup_grmode: 1111 vga_load_state(adp, ¶ms); 1112 break; 1113 1114 default: 1115 lwkt_reltoken(&vga_token); 1116 return EINVAL; 1117 } 1118 1119 adp->va_mode = mode; 1120 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1121 update_adapter_info(adp, &info); 1122 1123 /* move hardware cursor out of the way */ 1124 (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1); 1125 1126 lwkt_reltoken(&vga_token); 1127 return 0; 1128 #else /* VGA_NO_MODE_CHANGE */ 1129 return ENODEV; 1130 #endif /* VGA_NO_MODE_CHANGE */ 1131 } 1132 1133 #ifndef VGA_NO_FONT_LOADING 1134 1135 static void 1136 set_font_mode(video_adapter_t *adp, u_char *buf) 1137 { 1138 crit_enter(); 1139 1140 /* save register values */ 1141 outb(TSIDX, 0x02); buf[0] = inb(TSREG); 1142 outb(TSIDX, 0x04); buf[1] = inb(TSREG); 1143 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG); 1144 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG); 1145 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG); 1146 inb(CRTC + 6); 1147 outb(ATC, 0x10); buf[5] = inb(ATC + 1); 1148 1149 /* setup vga for loading fonts */ 1150 inb(CRTC + 6); /* reset flip-flop */ 1151 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01); 1152 inb(CRTC + 6); /* reset flip-flop */ 1153 outb(ATC, 0x20); /* enable palette */ 1154 outw(TSIDX, 0x0402); 1155 outw(TSIDX, 0x0704); 1156 outw(GDCIDX, 0x0204); 1157 outw(GDCIDX, 0x0005); 1158 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */ 1159 1160 crit_exit(); 1161 } 1162 1163 static void 1164 set_normal_mode(video_adapter_t *adp, u_char *buf) 1165 { 1166 crit_enter(); 1167 1168 /* setup vga for normal operation mode again */ 1169 inb(CRTC + 6); /* reset flip-flop */ 1170 outb(ATC, 0x10); outb(ATC, buf[5]); 1171 inb(CRTC + 6); /* reset flip-flop */ 1172 outb(ATC, 0x20); /* enable palette */ 1173 outw(TSIDX, 0x0002 | (buf[0] << 8)); 1174 outw(TSIDX, 0x0004 | (buf[1] << 8)); 1175 outw(GDCIDX, 0x0004 | (buf[2] << 8)); 1176 outw(GDCIDX, 0x0005 | (buf[3] << 8)); 1177 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8)); 1178 1179 crit_exit(); 1180 } 1181 1182 #endif /* VGA_NO_FONT_LOADING */ 1183 1184 /* 1185 * save_font(): 1186 * Read the font data in the requested font page from the video adapter. 1187 */ 1188 static int 1189 vga_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1190 int ch, int count) 1191 { 1192 #ifndef VGA_NO_FONT_LOADING 1193 u_char buf[PARAM_BUFSIZE]; 1194 vm_offset_t segment; 1195 int c; 1196 1197 prologue(adp, V_ADP_FONT, ENODEV); 1198 1199 if (fontsize < 14) { 1200 /* FONT_8 */ 1201 fontsize = 8; 1202 } else if (fontsize >= 32) { 1203 fontsize = 32; 1204 } else if (fontsize >= 16) { 1205 /* FONT_16 */ 1206 fontsize = 16; 1207 } else { 1208 /* FONT_14 */ 1209 fontsize = 14; 1210 } 1211 1212 if (page < 0 || page >= 8) 1213 return EINVAL; 1214 segment = FONT_BUF + 0x4000*page; 1215 if (page > 3) 1216 segment -= 0xe000; 1217 1218 set_font_mode(adp, buf); 1219 if (fontsize == 32) { 1220 bcopy_fromio((uintptr_t)segment + ch*32, data, fontsize*count); 1221 } else { 1222 for (c = ch; count > 0; ++c, --count) { 1223 bcopy_fromio((uintptr_t)segment + c*32, data, fontsize); 1224 data += fontsize; 1225 } 1226 } 1227 set_normal_mode(adp, buf); 1228 1229 return 0; 1230 #else /* VGA_NO_FONT_LOADING */ 1231 return ENODEV; 1232 #endif /* VGA_NO_FONT_LOADING */ 1233 } 1234 1235 /* 1236 * load_font(): 1237 * Set the font data in the requested font page. 1238 * NOTE: it appears that some recent video adapters do not support 1239 * the font page other than 0... XXX 1240 */ 1241 static int 1242 vga_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1243 int ch, int count) 1244 { 1245 #ifndef VGA_NO_FONT_LOADING 1246 u_char buf[PARAM_BUFSIZE]; 1247 vm_offset_t segment; 1248 int c; 1249 1250 prologue(adp, V_ADP_FONT, ENODEV); 1251 1252 if (fontsize < 14) { 1253 /* FONT_8 */ 1254 fontsize = 8; 1255 } else if (fontsize >= 32) { 1256 fontsize = 32; 1257 } else if (fontsize >= 16) { 1258 /* FONT_16 */ 1259 fontsize = 16; 1260 } else { 1261 /* FONT_14 */ 1262 fontsize = 14; 1263 } 1264 1265 if (page < 0 || page >= 8) 1266 return EINVAL; 1267 segment = FONT_BUF + 0x4000*page; 1268 if (page > 3) 1269 segment -= 0xe000; 1270 1271 set_font_mode(adp, buf); 1272 if (fontsize == 32) { 1273 bcopy_toio(data, (uintptr_t)segment + ch*32, fontsize*count); 1274 } else { 1275 for (c = ch; count > 0; ++c, --count) { 1276 bcopy_toio(data, (uintptr_t)segment + c*32, fontsize); 1277 data += fontsize; 1278 } 1279 } 1280 set_normal_mode(adp, buf); 1281 1282 return 0; 1283 #else /* VGA_NO_FONT_LOADING */ 1284 return ENODEV; 1285 #endif /* VGA_NO_FONT_LOADING */ 1286 } 1287 1288 /* 1289 * show_font(): 1290 * Activate the requested font page. 1291 * NOTE: it appears that some recent video adapters do not support 1292 * the font page other than 0... XXX 1293 */ 1294 static int 1295 vga_show_font(video_adapter_t *adp, int page) 1296 { 1297 #ifndef VGA_NO_FONT_LOADING 1298 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f }; 1299 1300 prologue(adp, V_ADP_FONT, ENODEV); 1301 if (page < 0 || page >= 8) 1302 return EINVAL; 1303 1304 crit_enter(); 1305 outb(TSIDX, 0x03); outb(TSREG, cg[page]); 1306 crit_exit(); 1307 1308 return 0; 1309 #else /* VGA_NO_FONT_LOADING */ 1310 return ENODEV; 1311 #endif /* VGA_NO_FONT_LOADING */ 1312 } 1313 1314 /* 1315 * save_palette(): 1316 * Read DAC values. The values have expressed in 8 bits. 1317 * 1318 * VGA 1319 */ 1320 static int 1321 vga_save_palette(video_adapter_t *adp, u_char *palette) 1322 { 1323 int i; 1324 1325 prologue(adp, V_ADP_PALETTE, ENODEV); 1326 1327 /* 1328 * We store 8 bit values in the palette buffer, while the standard 1329 * VGA has 6 bit DAC . 1330 */ 1331 outb(PALRADR, 0x00); 1332 for (i = 0; i < 256*3; ++i) 1333 palette[i] = inb(PALDATA) << 2; 1334 inb(CRTC + 6); /* reset flip/flop */ 1335 return 0; 1336 } 1337 1338 static int 1339 vga_save_palette2(video_adapter_t *adp, int base, int count, 1340 u_char *r, u_char *g, u_char *b) 1341 { 1342 int i; 1343 1344 prologue(adp, V_ADP_PALETTE, ENODEV); 1345 1346 outb(PALRADR, base); 1347 for (i = 0; i < count; ++i) { 1348 r[i] = inb(PALDATA) << 2; 1349 g[i] = inb(PALDATA) << 2; 1350 b[i] = inb(PALDATA) << 2; 1351 } 1352 inb(CRTC + 6); /* reset flip/flop */ 1353 return 0; 1354 } 1355 1356 /* 1357 * load_palette(): 1358 * Set DAC values. 1359 * 1360 * VGA 1361 */ 1362 static int 1363 vga_load_palette(video_adapter_t *adp, const u_char *palette) 1364 { 1365 int i; 1366 1367 prologue(adp, V_ADP_PALETTE, ENODEV); 1368 1369 outb(PIXMASK, 0xff); /* no pixelmask */ 1370 outb(PALWADR, 0x00); 1371 for (i = 0; i < 256*3; ++i) 1372 outb(PALDATA, palette[i] >> 2); 1373 inb(CRTC + 6); /* reset flip/flop */ 1374 outb(ATC, 0x20); /* enable palette */ 1375 return 0; 1376 } 1377 1378 static int 1379 vga_load_palette2(video_adapter_t *adp, int base, int count, 1380 u_char *r, u_char *g, u_char *b) 1381 { 1382 int i; 1383 1384 prologue(adp, V_ADP_PALETTE, ENODEV); 1385 1386 outb(PIXMASK, 0xff); /* no pixelmask */ 1387 outb(PALWADR, base); 1388 for (i = 0; i < count; ++i) { 1389 outb(PALDATA, r[i] >> 2); 1390 outb(PALDATA, g[i] >> 2); 1391 outb(PALDATA, b[i] >> 2); 1392 } 1393 inb(CRTC + 6); /* reset flip/flop */ 1394 outb(ATC, 0x20); /* enable palette */ 1395 return 0; 1396 } 1397 1398 /* 1399 * set_border(): 1400 * Change the border color. 1401 */ 1402 static int 1403 vga_set_border(video_adapter_t *adp, int color) 1404 { 1405 prologue(adp, V_ADP_BORDER, ENODEV); 1406 1407 inb(CRTC + 6); /* reset flip-flop */ 1408 outb(ATC, 0x31); outb(ATC, color & 0xff); 1409 1410 return 0; 1411 } 1412 1413 /* 1414 * save_state(): 1415 * Read video register values. 1416 * NOTE: this function only reads the standard VGA registers. 1417 * any extra/extended registers of SVGA adapters are not saved. 1418 */ 1419 static int 1420 vga_save_state(video_adapter_t *adp, void *p, size_t size) 1421 { 1422 video_info_t info; 1423 u_char *buf; 1424 int i, j; 1425 1426 if (size == 0) { 1427 /* return the required buffer size */ 1428 prologue(adp, V_ADP_STATESAVE, 0); 1429 return sizeof(adp_state_t); 1430 } else { 1431 prologue(adp, V_ADP_STATESAVE, ENODEV); 1432 if (size < sizeof(adp_state_t)) 1433 return EINVAL; 1434 } 1435 ((adp_state_t *)p)->sig = V_STATE_SIG; 1436 buf = ((adp_state_t *)p)->regs; 1437 bzero(buf, V_MODE_PARAM_SIZE); 1438 1439 crit_enter(); 1440 1441 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 1442 for (i = 0, j = 5; i < 4; i++) { 1443 outb(TSIDX, i + 1); 1444 buf[j++] = inb(TSREG); 1445 } 1446 buf[9] = inb(MISC + 10); /* dot-clock */ 1447 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 1448 1449 for (i = 0, j = 10; i < 25; i++) { /* crtc */ 1450 outb(CRTC, i); 1451 buf[j++] = inb(CRTC + 1); 1452 } 1453 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */ 1454 inb(CRTC + 6); /* reset flip-flop */ 1455 outb(ATC, i); 1456 buf[j++] = inb(ATC + 1); 1457 } 1458 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */ 1459 outb(GDCIDX, i); 1460 buf[j++] = inb(GDCREG); 1461 } 1462 inb(CRTC + 6); /* reset flip-flop */ 1463 outb(ATC, 0x20); /* enable palette */ 1464 1465 crit_exit(); 1466 1467 #if 1 1468 if (vga_get_info(adp, adp->va_mode, &info) == 0) { 1469 if (info.vi_flags & V_INFO_GRAPHICS) { 1470 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */ 1471 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */ 1472 } else { 1473 buf[0] = info.vi_width; /* COLS */ 1474 buf[1] = info.vi_height - 1; /* ROWS */ 1475 } 1476 buf[2] = info.vi_cheight; /* POINTS */ 1477 } else { 1478 /* XXX: shouldn't be happening... */ 1479 kprintf("vga%d: %s: failed to obtain mode info. (vga_save_state())\n", 1480 adp->va_unit, adp->va_name); 1481 } 1482 #else 1483 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */ 1484 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */ 1485 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */ 1486 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c)); 1487 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d)); 1488 #endif 1489 1490 return 0; 1491 } 1492 1493 /* 1494 * load_state(): 1495 * Set video registers at once. 1496 * NOTE: this function only updates the standard VGA registers. 1497 * any extra/extended registers of SVGA adapters are not changed. 1498 */ 1499 static int 1500 vga_load_state(video_adapter_t *adp, void *p) 1501 { 1502 u_char *buf; 1503 int i; 1504 1505 prologue(adp, V_ADP_STATELOAD, ENODEV); 1506 if (((adp_state_t *)p)->sig != V_STATE_SIG) 1507 return EINVAL; 1508 1509 buf = ((adp_state_t *)p)->regs; 1510 1511 #if VGA_DEBUG > 1 1512 hexdump(buf, V_MODE_PARAM_SIZE, NULL, HD_OMIT_CHARS | HD_OMIT_COUNT); 1513 #endif 1514 1515 crit_enter(); 1516 1517 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 1518 for (i = 0; i < 4; ++i) { /* program sequencer */ 1519 outb(TSIDX, i + 1); 1520 outb(TSREG, buf[i + 5]); 1521 } 1522 outb(MISC, buf[9]); /* set dot-clock */ 1523 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 1524 outb(CRTC, 0x11); 1525 outb(CRTC + 1, inb(CRTC + 1) & 0x7F); 1526 for (i = 0; i < 25; ++i) { /* program crtc */ 1527 outb(CRTC, i); 1528 outb(CRTC + 1, buf[i + 10]); 1529 } 1530 inb(CRTC + 6); /* reset flip-flop */ 1531 for (i = 0; i < 20; ++i) { /* program attribute ctrl */ 1532 outb(ATC, i); 1533 outb(ATC, buf[i + 35]); 1534 } 1535 for (i = 0; i < 9; ++i) { /* program graph data ctrl */ 1536 outb(GDCIDX, i); 1537 outb(GDCREG, buf[i + 55]); 1538 } 1539 inb(CRTC + 6); /* reset flip-flop */ 1540 outb(ATC, 0x20); /* enable palette */ 1541 1542 #if 0 /* XXX a temporary workaround for kernel panic */ 1543 #ifndef VGA_NO_MODE_CHANGE 1544 if (adp->va_unit == V_ADP_PRIMARY) { 1545 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */ 1546 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */ 1547 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */ 1548 #if 0 1549 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]); 1550 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]); 1551 #endif 1552 } 1553 #endif /* !VGA_NO_MODE_CHANGE */ 1554 #endif /* XXX */ 1555 1556 crit_exit(); 1557 return 0; 1558 } 1559 1560 /* 1561 * set_origin(): 1562 * Change the origin (window mapping) of the banked frame buffer. 1563 */ 1564 static int 1565 vga_set_origin(video_adapter_t *adp, off_t offset) 1566 { 1567 /* 1568 * The standard video modes do not require window mapping; 1569 * always return error. 1570 */ 1571 return ENODEV; 1572 } 1573 1574 /* 1575 * read_hw_cursor(): 1576 * Read the position of the hardware text cursor. 1577 */ 1578 static int 1579 vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 1580 { 1581 u_int16_t off; 1582 1583 if (!vga_init_done) 1584 return ENXIO; 1585 1586 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 1587 return ENODEV; 1588 1589 crit_enter(); 1590 outb(CRTC, 14); 1591 off = inb(CRTC + 1); 1592 outb(CRTC, 15); 1593 off = (off << 8) | inb(CRTC + 1); 1594 crit_exit(); 1595 1596 *row = off / adp->va_info.vi_width; 1597 *col = off % adp->va_info.vi_width; 1598 1599 return 0; 1600 } 1601 1602 /* 1603 * set_hw_cursor(): 1604 * Move the hardware text cursor. If col and row are both -1, 1605 * the cursor won't be shown. 1606 */ 1607 static int 1608 vga_set_hw_cursor(video_adapter_t *adp, int col, int row) 1609 { 1610 u_int16_t off; 1611 1612 if (!vga_init_done) 1613 return ENXIO; 1614 1615 if ((col == -1) && (row == -1)) { 1616 off = -1; 1617 } else { 1618 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 1619 return ENODEV; 1620 off = row*adp->va_info.vi_width + col; 1621 } 1622 1623 crit_enter(); 1624 outb(CRTC, 14); 1625 outb(CRTC + 1, off >> 8); 1626 outb(CRTC, 15); 1627 outb(CRTC + 1, off & 0x00ff); 1628 crit_exit(); 1629 1630 return 0; 1631 } 1632 1633 /* 1634 * set_hw_cursor_shape(): 1635 * Change the shape of the hardware text cursor. If the height is 1636 * zero or negative, the cursor won't be shown. 1637 */ 1638 static int 1639 vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 1640 int celsize, int blink) 1641 { 1642 if (!vga_init_done) 1643 return ENXIO; 1644 1645 crit_enter(); 1646 if (height <= 0) { 1647 /* make the cursor invisible */ 1648 outb(CRTC, 10); 1649 outb(CRTC + 1, 32); 1650 outb(CRTC, 11); 1651 outb(CRTC + 1, 0); 1652 } else { 1653 outb(CRTC, 10); 1654 outb(CRTC + 1, celsize - base - height); 1655 outb(CRTC, 11); 1656 outb(CRTC + 1, celsize - base - 1); 1657 } 1658 crit_exit(); 1659 1660 return 0; 1661 } 1662 1663 /* 1664 * blank_display() 1665 * Put the display in power save/power off mode. 1666 */ 1667 static int 1668 vga_blank_display(video_adapter_t *adp, int mode) 1669 { 1670 u_char val; 1671 1672 crit_enter(); 1673 switch (mode) { 1674 case V_DISPLAY_SUSPEND: 1675 case V_DISPLAY_STAND_BY: 1676 outb(TSIDX, 0x01); 1677 val = inb(TSREG); 1678 outb(TSIDX, 0x01); 1679 outb(TSREG, val | 0x20); 1680 outb(CRTC, 0x17); 1681 val = inb(CRTC + 1); 1682 outb(CRTC + 1, val & ~0x80); 1683 break; 1684 case V_DISPLAY_BLANK: 1685 outb(TSIDX, 0x01); 1686 val = inb(TSREG); 1687 outb(TSIDX, 0x01); 1688 outb(TSREG, val | 0x20); 1689 break; 1690 case V_DISPLAY_ON: 1691 outb(TSIDX, 0x01); 1692 val = inb(TSREG); 1693 outb(TSIDX, 0x01); 1694 outb(TSREG, val & 0xDF); 1695 outb(CRTC, 0x17); 1696 val = inb(CRTC + 1); 1697 outb(CRTC + 1, val | 0x80); 1698 break; 1699 } 1700 crit_exit(); 1701 1702 return 0; 1703 } 1704 1705 /* 1706 * mmap(): 1707 * Mmap frame buffer. 1708 */ 1709 static int 1710 vga_mmap_buf(video_adapter_t *adp, vm_offset_t offset, int prot) 1711 { 1712 if (adp->va_info.vi_flags & V_INFO_LINEAR) 1713 return -1; 1714 1715 #if VGA_DEBUG > 0 1716 kprintf("vga_mmap_buf(): window:0x%x, offset:%p\n", 1717 adp->va_info.vi_window, (void *)offset); 1718 #endif 1719 1720 /* XXX: is this correct? */ 1721 if (offset > adp->va_window_size - PAGE_SIZE) 1722 return -1; 1723 1724 #if defined(__x86_64__) 1725 return x86_64_btop(adp->va_info.vi_window + offset); 1726 #else 1727 #error "vga_mmap_buf needs to return something" 1728 #endif 1729 } 1730 1731 #ifndef VGA_NO_MODE_CHANGE 1732 1733 static void 1734 planar_fill(video_adapter_t *adp, int val) 1735 { 1736 int length; 1737 int at; /* position in the frame buffer */ 1738 int l; 1739 1740 lwkt_gettoken(&vga_token); 1741 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 1742 outw(GDCIDX, 0x0003); /* data rotate/function select */ 1743 outw(GDCIDX, 0x0f01); /* set/reset enable */ 1744 outw(GDCIDX, 0xff08); /* bit mask */ 1745 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 1746 at = 0; 1747 length = adp->va_line_width*adp->va_info.vi_height; 1748 while (length > 0) { 1749 l = imin(length, adp->va_window_size); 1750 (*vidsw[adp->va_index]->set_win_org)(adp, at); 1751 bzero_io(adp->va_window, l); 1752 length -= l; 1753 at += l; 1754 } 1755 outw(GDCIDX, 0x0000); /* set/reset */ 1756 outw(GDCIDX, 0x0001); /* set/reset enable */ 1757 lwkt_reltoken(&vga_token); 1758 } 1759 1760 static void 1761 packed_fill(video_adapter_t *adp, int val) 1762 { 1763 int length; 1764 int at; /* position in the frame buffer */ 1765 int l; 1766 1767 lwkt_gettoken(&vga_token); 1768 at = 0; 1769 length = adp->va_line_width*adp->va_info.vi_height; 1770 while (length > 0) { 1771 l = imin(length, adp->va_window_size); 1772 (*vidsw[adp->va_index]->set_win_org)(adp, at); 1773 fill_io(val, adp->va_window, l); 1774 length -= l; 1775 at += l; 1776 } 1777 lwkt_reltoken(&vga_token); 1778 } 1779 1780 static void 1781 direct_fill(video_adapter_t *adp, int val) 1782 { 1783 int length; 1784 int at; /* position in the frame buffer */ 1785 int l; 1786 1787 lwkt_gettoken(&vga_token); 1788 at = 0; 1789 length = adp->va_line_width*adp->va_info.vi_height; 1790 while (length > 0) { 1791 l = imin(length, adp->va_window_size); 1792 (*vidsw[adp->va_index]->set_win_org)(adp, at); 1793 switch (adp->va_info.vi_pixel_size) { 1794 case sizeof(u_int16_t): 1795 fillw_io(val, adp->va_window, l/sizeof(u_int16_t)); 1796 break; 1797 case 3: 1798 /* FIXME */ 1799 break; 1800 case sizeof(u_int32_t): 1801 filll_io(val, adp->va_window, l/sizeof(u_int32_t)); 1802 break; 1803 } 1804 length -= l; 1805 at += l; 1806 } 1807 lwkt_reltoken(&vga_token); 1808 } 1809 1810 static int 1811 vga_clear(video_adapter_t *adp) 1812 { 1813 switch (adp->va_info.vi_mem_model) { 1814 case V_INFO_MM_TEXT: 1815 /* do nothing? XXX */ 1816 break; 1817 case V_INFO_MM_PLANAR: 1818 planar_fill(adp, 0); 1819 break; 1820 case V_INFO_MM_PACKED: 1821 packed_fill(adp, 0); 1822 break; 1823 case V_INFO_MM_DIRECT: 1824 direct_fill(adp, 0); 1825 break; 1826 } 1827 return 0; 1828 } 1829 1830 static int 1831 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 1832 { 1833 return ENODEV; 1834 } 1835 1836 static int 1837 vga_bitblt(video_adapter_t *adp,...) 1838 { 1839 /* FIXME */ 1840 return ENODEV; 1841 } 1842 1843 #endif /* !VGA_NO_MODE_CHANGE */ 1844 1845 static int 1846 get_palette(video_adapter_t *adp, int base, int count, 1847 u_char *red, u_char *green, u_char *blue, u_char *trans) 1848 { 1849 u_char *r; 1850 u_char *g; 1851 u_char *b; 1852 1853 if (count < 0 || base < 0 || count > 256 || base > 256 || 1854 base + count > 256) 1855 return EINVAL; 1856 1857 r = kmalloc(count*3, M_DEVBUF, M_WAITOK); 1858 g = r + count; 1859 b = g + count; 1860 if (vga_save_palette2(adp, base, count, r, g, b)) { 1861 kfree(r, M_DEVBUF); 1862 return ENODEV; 1863 } 1864 copyout(r, red, count); 1865 copyout(g, green, count); 1866 copyout(b, blue, count); 1867 if (trans != NULL) { 1868 bzero(r, count); 1869 copyout(r, trans, count); 1870 } 1871 kfree(r, M_DEVBUF); 1872 1873 return 0; 1874 } 1875 1876 static int 1877 set_palette(video_adapter_t *adp, int base, int count, 1878 u_char *red, u_char *green, u_char *blue, u_char *trans) 1879 { 1880 u_char *r; 1881 u_char *g; 1882 u_char *b; 1883 int err; 1884 1885 if (count < 0 || base < 0 || count > 256 || base > 256 || 1886 base + count > 256) 1887 return EINVAL; 1888 1889 r = kmalloc(count*3, M_DEVBUF, M_WAITOK); 1890 g = r + count; 1891 b = g + count; 1892 err = copyin(red, r, count); 1893 if (!err) 1894 err = copyin(green, g, count); 1895 if (!err) 1896 err = copyin(blue, b, count); 1897 if (!err) 1898 err = vga_load_palette2(adp, base, count, r, g, b); 1899 kfree(r, M_DEVBUF); 1900 1901 return (err ? ENODEV : 0); 1902 } 1903 1904 static int 1905 vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 1906 { 1907 switch (cmd) { 1908 case FBIO_GETWINORG: /* get frame buffer window origin */ 1909 *(u_int *)arg = 0; 1910 return 0; 1911 1912 case FBIO_SETWINORG: /* set frame buffer window origin */ 1913 return ENODEV; 1914 1915 case FBIO_SETDISPSTART: /* set display start address */ 1916 return (set_display_start(adp, 1917 ((video_display_start_t *)arg)->x, 1918 ((video_display_start_t *)arg)->y) 1919 ? ENODEV : 0); 1920 1921 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */ 1922 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0); 1923 1924 case FBIO_GETPALETTE: /* get color palette */ 1925 return get_palette(adp, ((video_color_palette_t *)arg)->index, 1926 ((video_color_palette_t *)arg)->count, 1927 ((video_color_palette_t *)arg)->red, 1928 ((video_color_palette_t *)arg)->green, 1929 ((video_color_palette_t *)arg)->blue, 1930 ((video_color_palette_t *)arg)->transparent); 1931 1932 case FBIO_SETPALETTE: /* set color palette */ 1933 return set_palette(adp, ((video_color_palette_t *)arg)->index, 1934 ((video_color_palette_t *)arg)->count, 1935 ((video_color_palette_t *)arg)->red, 1936 ((video_color_palette_t *)arg)->green, 1937 ((video_color_palette_t *)arg)->blue, 1938 ((video_color_palette_t *)arg)->transparent); 1939 1940 case FBIOGTYPE: /* get frame buffer type info. */ 1941 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type); 1942 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height; 1943 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width; 1944 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth; 1945 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8)) 1946 ((struct fbtype *)arg)->fb_cmsize = 0; 1947 else 1948 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth; 1949 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size; 1950 return 0; 1951 1952 case FBIOGETCMAP: /* get color palette */ 1953 return get_palette(adp, ((struct fbcmap *)arg)->index, 1954 ((struct fbcmap *)arg)->count, 1955 ((struct fbcmap *)arg)->red, 1956 ((struct fbcmap *)arg)->green, 1957 ((struct fbcmap *)arg)->blue, NULL); 1958 1959 case FBIOPUTCMAP: /* set color palette */ 1960 return set_palette(adp, ((struct fbcmap *)arg)->index, 1961 ((struct fbcmap *)arg)->count, 1962 ((struct fbcmap *)arg)->red, 1963 ((struct fbcmap *)arg)->green, 1964 ((struct fbcmap *)arg)->blue, NULL); 1965 1966 default: 1967 return fb_commonioctl(adp, cmd, arg); 1968 } 1969 } 1970 1971 /* 1972 * diag(): 1973 * Print some information about the video adapter and video modes, 1974 * with requested level of details. 1975 */ 1976 static int 1977 vga_diag(video_adapter_t *adp, int level) 1978 { 1979 u_char *mp; 1980 #if FB_DEBUG > 1 1981 video_info_t info; 1982 int i; 1983 #endif 1984 1985 if (!vga_init_done) 1986 return ENXIO; 1987 1988 #if FB_DEBUG > 1 1989 #ifndef VGA_NO_MODE_CHANGE 1990 kprintf("vga: DCC code:0x%02x\n", 1991 readb(BIOS_PADDRTOVADDR(0x488))); 1992 kprintf("vga: CRTC:0x%x, video option:0x%02x, ", 1993 readw(BIOS_PADDRTOVADDR(0x463)), 1994 readb(BIOS_PADDRTOVADDR(0x487))); 1995 kprintf("rows:%d, cols:%d, font height:%d\n", 1996 readb(BIOS_PADDRTOVADDR(0x44a)), 1997 readb(BIOS_PADDRTOVADDR(0x484)) + 1, 1998 readb(BIOS_PADDRTOVADDR(0x485))); 1999 kprintf("vga: param table:%p\n", video_mode_ptr); 2000 kprintf("vga: rows_offset:%d\n", rows_offset); 2001 #endif 2002 #endif /* FB_DEBUG > 1 */ 2003 2004 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level); 2005 2006 #if FB_DEBUG > 1 2007 if (adp->va_flags & V_ADP_MODECHANGE) { 2008 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 2009 if (bios_vmode[i].vi_mode == NA) 2010 continue; 2011 if (get_mode_param(bios_vmode[i].vi_mode) == NULL) 2012 continue; 2013 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level); 2014 } 2015 } else { 2016 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */ 2017 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level); 2018 } 2019 #endif /* FB_DEBUG > 1 */ 2020 2021 #ifndef VGA_NO_MODE_CHANGE 2022 if (video_mode_ptr == NULL) 2023 kprintf("vga%d: %s: WARNING: video mode switching is not " 2024 "fully supported on this adapter\n", 2025 adp->va_unit, adp->va_name); 2026 #endif 2027 if (level <= 0) 2028 return 0; 2029 2030 kprintf("VGA parameters upon power-up\n"); 2031 hexdump(adpstate.regs, sizeof(adpstate.regs), NULL, 2032 HD_OMIT_CHARS | HD_OMIT_COUNT); 2033 2034 mp = get_mode_param(adp->va_initial_mode); 2035 if (mp == NULL) /* this shouldn't be happening */ 2036 return 0; 2037 kprintf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode); 2038 hexdump(adpstate2.regs, sizeof(adpstate2.regs), NULL, 2039 HD_OMIT_CHARS | HD_OMIT_COUNT); 2040 kprintf("VGA parameters to be used for mode %d\n", adp->va_initial_mode); 2041 hexdump(mp, V_MODE_PARAM_SIZE, NULL, HD_OMIT_CHARS | HD_OMIT_COUNT); 2042 2043 return 0; 2044 } 2045