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 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/conf.h> 41 #include <sys/fcntl.h> 42 #include <sys/malloc.h> 43 #include <sys/fbio.h> 44 #include <sys/thread2.h> 45 46 #include <bus/isa/isareg.h> 47 48 #include <machine/clock.h> 49 #include <machine/md_var.h> 50 #include <machine/framebuffer.h> 51 #ifdef __x86_64__ 52 #include <machine/pc/bios.h> 53 #endif 54 55 #include <vm/vm.h> 56 #include <vm/vm_param.h> 57 #include <vm/pmap.h> 58 59 #include "fbreg.h" 60 #include "vgareg.h" 61 62 #ifndef VGA_DEBUG 63 #define VGA_DEBUG 0 64 #endif 65 66 int 67 vga_probe_unit(int unit, video_adapter_t *buf, int flags) 68 { 69 video_adapter_t *adp; 70 video_switch_t *sw; 71 int error; 72 73 sw = vid_get_switch(VGA_DRIVER_NAME); 74 if (sw == NULL) 75 return 0; 76 error = (*sw->probe)(unit, &adp, NULL, flags); 77 if (error) 78 return error; 79 bcopy(adp, buf, sizeof(*buf)); 80 return 0; 81 } 82 83 int 84 vga_attach_unit(int unit, vga_softc_t *sc, int flags) 85 { 86 video_switch_t *sw; 87 int error; 88 89 sw = vid_get_switch(VGA_DRIVER_NAME); 90 if (sw == NULL) 91 return ENXIO; 92 93 error = (*sw->probe)(unit, &sc->adp, NULL, flags); 94 if (error) 95 return error; 96 return (*sw->init)(unit, sc->adp, flags); 97 } 98 99 /* cdev driver functions */ 100 101 #ifdef FB_INSTALL_CDEV 102 103 struct ucred; 104 105 int 106 vga_open(cdev_t dev, vga_softc_t *sc, int flag, int mode, struct ucred *cred) 107 { 108 if (sc == NULL) 109 return ENXIO; 110 if (mode & (O_CREAT | O_APPEND | O_TRUNC)) 111 return ENODEV; 112 113 return genfbopen(&sc->gensc, sc->adp, flag, mode, cred); 114 } 115 116 int 117 vga_close(cdev_t dev, vga_softc_t *sc, int flag, int mode) 118 { 119 return genfbclose(&sc->gensc, sc->adp, flag, mode); 120 } 121 122 int 123 vga_read(cdev_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_write(cdev_t dev, vga_softc_t *sc, struct uio *uio, int flag) 130 { 131 return genfbread(&sc->gensc, sc->adp, uio, flag); 132 } 133 134 int 135 vga_ioctl(cdev_t dev, vga_softc_t *sc, u_long cmd, caddr_t arg, int flag, 136 struct ucred *cred) 137 { 138 return genfbioctl(&sc->gensc, sc->adp, cmd, arg, flag, cred); 139 } 140 141 int 142 vga_mmap(cdev_t dev, vga_softc_t *sc, vm_offset_t offset, int prot) 143 { 144 return genfbmmap(&sc->gensc, sc->adp, offset, prot); 145 } 146 147 #endif /* FB_INSTALL_CDEV */ 148 149 /* LOW-LEVEL */ 150 151 #define probe_done(adp) ((adp)->va_flags & V_ADP_PROBED) 152 #define init_done(adp) ((adp)->va_flags & V_ADP_INITIALIZED) 153 #define config_done(adp) ((adp)->va_flags & V_ADP_REGISTERED) 154 155 /* various sizes */ 156 #define V_MODE_MAP_SIZE (M_VGA_CG320 + 1) 157 #define V_MODE_PARAM_SIZE 64 158 159 /* video adapter state buffer */ 160 struct adp_state { 161 int sig; 162 #define V_STATE_SIG 0x736f6962 163 u_char regs[V_MODE_PARAM_SIZE]; 164 }; 165 typedef struct adp_state adp_state_t; 166 167 /* 168 * NOTE: `va_window' should have a virtual address, but is initialized 169 * with a physical address in the following table, as verify_adapter() 170 * will perform address conversion at run-time. 171 */ 172 static video_adapter_t biosadapter = { 173 0, KD_VGA, VGA_DRIVER_NAME, 0, 0, V_ADP_COLOR, IO_VGA, 32, 174 EGA_BUF_BASE, EGA_BUF_SIZE, CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 175 0, 0, 0, M_VGA_C80x25, M_C80x25, M_VGA_C80x25 176 }; 177 178 /* video driver declarations */ 179 static int vga_configure(int flags); 180 static int vga_error(void); 181 static vi_probe_t vga_probe; 182 static vi_init_t vga_init; 183 static vi_get_info_t vga_get_info; 184 static vi_query_mode_t vga_query_mode; 185 static vi_set_mode_t vga_set_mode; 186 static vi_save_font_t vga_save_font; 187 static vi_load_font_t vga_load_font; 188 static vi_show_font_t vga_show_font; 189 static vi_save_palette_t vga_save_palette; 190 static vi_load_palette_t vga_load_palette; 191 static vi_set_border_t vga_set_border; 192 static vi_save_state_t vga_save_state; 193 static vi_load_state_t vga_load_state; 194 static vi_set_win_org_t vga_set_origin; 195 static vi_read_hw_cursor_t vga_read_hw_cursor; 196 static vi_set_hw_cursor_t vga_set_hw_cursor; 197 static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape; 198 static vi_blank_display_t vga_blank_display; 199 static vi_mmap_t vga_mmap_buf; 200 static vi_ioctl_t vga_dev_ioctl; 201 #ifndef VGA_NO_MODE_CHANGE 202 static vi_clear_t vga_clear; 203 static vi_fill_rect_t vga_fill_rect; 204 static vi_bitblt_t vga_bitblt; 205 #else /* VGA_NO_MODE_CHANGE */ 206 #define vga_clear (vi_clear_t *)vga_error 207 #define vga_fill_rect (vi_fill_rect_t *)vga_error 208 #define vga_bitblt (vi_bitblt_t *)vga_error 209 #endif 210 static vi_diag_t vga_diag; 211 212 static video_switch_t vgavidsw = { 213 vga_probe, 214 vga_init, 215 vga_get_info, 216 vga_query_mode, 217 vga_set_mode, 218 vga_save_font, 219 vga_load_font, 220 vga_show_font, 221 vga_save_palette, 222 vga_load_palette, 223 vga_set_border, 224 vga_save_state, 225 vga_load_state, 226 vga_set_origin, 227 vga_read_hw_cursor, 228 vga_set_hw_cursor, 229 vga_set_hw_cursor_shape, 230 vga_blank_display, 231 vga_mmap_buf, 232 vga_dev_ioctl, 233 vga_clear, 234 vga_fill_rect, 235 vga_bitblt, 236 vga_error, 237 vga_error, 238 vga_diag, 239 }; 240 241 VIDEO_DRIVER(vga, vgavidsw, vga_configure); 242 243 /* VGA BIOS standard video modes */ 244 #define EOT (-1) 245 #define NA (-2) 246 247 static video_info_t bios_vmode[] = { 248 /* CGA */ 249 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1, 250 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 251 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1, 252 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 253 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1, 254 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 255 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1, 256 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 257 /* EGA */ 258 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1, 259 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 260 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1, 261 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 262 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1, 263 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 264 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1, 265 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 266 /* VGA */ 267 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1, 268 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 269 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1, 270 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 271 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1, 272 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 273 /* MDA */ 274 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1, 275 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 276 /* EGA */ 277 { M_ENH_B80x43, 0, 80, 43, 8, 8, 2, 1, 278 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 279 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1, 280 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 281 /* VGA */ 282 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1, 283 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 284 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1, 285 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 286 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1, 287 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 288 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1, 289 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 290 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1, 291 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 292 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1, 293 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 294 295 #ifndef VGA_NO_MODE_CHANGE 296 297 #ifdef VGA_WIDTH90 298 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1, 299 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 300 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1, 301 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 302 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1, 303 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 304 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1, 305 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 306 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1, 307 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 308 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1, 309 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 310 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1, 311 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 312 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1, 313 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 314 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1, 315 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 316 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1, 317 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 318 #endif /* VGA_WIDTH90 */ 319 320 /* CGA */ 321 { M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 322 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 323 { M_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 324 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 325 { M_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1, 326 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 327 /* EGA */ 328 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4, 329 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 330 V_INFO_MM_PLANAR }, 331 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4, 332 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 333 V_INFO_MM_PLANAR }, 334 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 335 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 , 336 V_INFO_MM_PLANAR }, 337 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 338 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 339 V_INFO_MM_PLANAR }, 340 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2, 341 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 342 V_INFO_MM_PLANAR }, 343 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 344 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 345 V_INFO_MM_PLANAR }, 346 /* VGA */ 347 { M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 348 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 349 V_INFO_MM_PLANAR }, 350 { M_CG640x480, 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_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1, 354 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 355 V_INFO_MM_PACKED, 1 }, 356 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 4, 357 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 358 V_INFO_MM_VGAX, 1 }, 359 #endif /* VGA_NO_MODE_CHANGE */ 360 361 { EOT }, 362 }; 363 364 static int vga_init_done = FALSE; 365 #ifndef VGA_NO_MODE_CHANGE 366 static u_char *video_mode_ptr = NULL; 367 #endif 368 static u_char *mode_map[V_MODE_MAP_SIZE]; 369 static adp_state_t adpstate; 370 static adp_state_t adpstate2; 371 static int rows_offset = 1; 372 373 /* local macros and functions */ 374 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 375 376 #ifndef VGA_NO_MODE_CHANGE 377 static void map_mode_table(u_char **, u_char *); 378 static int map_mode_num(int); 379 static int map_bios_mode_num(int); 380 #endif 381 static u_char *get_mode_param(int); 382 static int verify_adapter(video_adapter_t *); 383 static void update_adapter_info(video_adapter_t *, video_info_t *); 384 static int probe_adapters(void); 385 static int set_line_length(video_adapter_t *, int); 386 static int set_display_start(video_adapter_t *, int, int); 387 388 #ifndef VGA_NO_MODE_CHANGE 389 #ifdef VGA_WIDTH90 390 static void set_width90(adp_state_t *); 391 #endif 392 #endif /* !VGA_NO_MODE_CHANGE */ 393 394 #ifndef VGA_NO_FONT_LOADING 395 #define PARAM_BUFSIZE 6 396 static void set_font_mode(video_adapter_t *, u_char *); 397 static void set_normal_mode(video_adapter_t *, u_char *); 398 #endif 399 400 #ifndef VGA_NO_MODE_CHANGE 401 static void filll_io(int, vm_offset_t, size_t); 402 static void planar_fill(video_adapter_t *, int); 403 static void packed_fill(video_adapter_t *, int); 404 static void direct_fill(video_adapter_t *, int); 405 #endif /* !VGA_NO_MODE_CHANGE */ 406 407 #define ISMAPPED(pa, width) \ 408 (((pa) <= (u_long)0x1000 - (width)) \ 409 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width))) 410 411 #define prologue(adp, flag, err) \ 412 if (!vga_init_done || !((adp)->va_flags & (flag))) \ 413 return (err) 414 415 /* a backdoor for the console driver */ 416 static int 417 vga_configure(int flags) 418 { 419 /* No VGA when booted via UEFI */ 420 if (probe_efi_fb(0) == 0) 421 return 0; /* XXX nobody uses this return value */ 422 423 /* XXX Also abort if VGA isn't present according to ACPI FADT BootFlags */ 424 425 probe_adapters(); 426 if (probe_done(&biosadapter)) { 427 biosadapter.va_flags |= V_ADP_INITIALIZED; 428 if (!config_done(&biosadapter) && !(vid_register(&biosadapter) < 0)) 429 biosadapter.va_flags |= V_ADP_REGISTERED; 430 } 431 432 return 1; 433 } 434 435 /* local subroutines */ 436 437 #ifndef VGA_NO_MODE_CHANGE 438 /* construct the mode parameter map (accept 40x25, 80x25 and 80x30 modes) */ 439 static void 440 map_mode_table(u_char *map[], u_char *table) 441 { 442 int i, valid; 443 444 for(i = 0; i < V_MODE_MAP_SIZE; ++i) { 445 map[i] = table + i*V_MODE_PARAM_SIZE; 446 valid = 0; 447 if ((map[i][0] == 40 && map[i][1] == 24) || 448 (map[i][0] == 80 && (map[i][1] == 24 || map[i][1] == 29))) 449 valid++; 450 if (!valid) 451 map[i] = NULL; 452 } 453 } 454 #endif /* !VGA_NO_MODE_CHANGE */ 455 456 #ifndef VGA_NO_MODE_CHANGE 457 /* map the non-standard video mode to a known mode number */ 458 static int 459 map_mode_num(int mode) 460 { 461 static struct { 462 int from; 463 int to; 464 } mode_map[] = { 465 { M_ENH_B80x43, M_ENH_B80x25 }, 466 { M_ENH_C80x43, M_ENH_C80x25 }, 467 { M_VGA_M80x30, M_VGA_M80x25 }, 468 { M_VGA_C80x30, M_VGA_C80x25 }, 469 { M_VGA_M80x50, M_VGA_M80x25 }, 470 { M_VGA_C80x50, M_VGA_C80x25 }, 471 { M_VGA_M80x60, M_VGA_M80x25 }, 472 { M_VGA_C80x60, M_VGA_C80x25 }, 473 #ifdef VGA_WIDTH90 474 { M_VGA_M90x25, M_VGA_M80x25 }, 475 { M_VGA_C90x25, M_VGA_C80x25 }, 476 { M_VGA_M90x30, M_VGA_M80x25 }, 477 { M_VGA_C90x30, M_VGA_C80x25 }, 478 { M_VGA_M90x43, M_ENH_B80x25 }, 479 { M_VGA_C90x43, M_ENH_C80x25 }, 480 { M_VGA_M90x50, M_VGA_M80x25 }, 481 { M_VGA_C90x50, M_VGA_C80x25 }, 482 { M_VGA_M90x60, M_VGA_M80x25 }, 483 { M_VGA_C90x60, M_VGA_C80x25 }, 484 #endif 485 { M_VGA_MODEX, M_VGA_CG320 }, 486 }; 487 int i; 488 489 for (i = 0; i < NELEM(mode_map); ++i) { 490 if (mode_map[i].from == mode) 491 return mode_map[i].to; 492 } 493 return mode; 494 } 495 496 /* turn the BIOS video number into our video mode number */ 497 static int 498 map_bios_mode_num(int bios_mode) 499 { 500 static int vga_modes[20] = { 501 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */ 502 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */ 503 M_BG320, M_CG320, 504 M_BG640, 505 M_VGA_M80x25, /* 7 */ 506 8, 9, 10, 11, 12, 507 M_CG320_D, 508 M_CG640_E, 509 M_ENHMONOAPA2, 510 M_ENH_CG640, 511 M_BG640x480, M_CG640x480, 512 M_VGA_CG320, 513 }; 514 515 if (bios_mode < NELEM(vga_modes)) 516 return vga_modes[bios_mode]; 517 518 return M_VGA_C80x25; 519 } 520 #endif /* !VGA_NO_MODE_CHANGE */ 521 522 /* look up a parameter table entry */ 523 static u_char * 524 get_mode_param(int mode) 525 { 526 #ifndef VGA_NO_MODE_CHANGE 527 if (mode >= V_MODE_MAP_SIZE) 528 mode = map_mode_num(mode); 529 #endif 530 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE)) 531 return mode_map[mode]; 532 else 533 return NULL; 534 } 535 536 static int 537 verify_adapter(video_adapter_t *adp) 538 { 539 vm_offset_t buf; 540 u_int16_t v; 541 #ifndef VGA_NO_MODE_CHANGE 542 u_int32_t p; 543 #endif 544 545 buf = BIOS_PADDRTOVADDR(adp->va_window); 546 v = readw(buf); 547 writew(buf, 0xA55A); 548 if (readw(buf) != 0xA55A) 549 return ENXIO; 550 writew(buf, v); 551 552 outb(CRTC, 7); 553 if (inb(CRTC) != 7) 554 return ENXIO; 555 556 adp->va_flags |= V_ADP_STATELOAD | V_ADP_STATESAVE | V_ADP_PALETTE | 557 V_ADP_BORDER; 558 559 #ifndef VGA_NO_MODE_CHANGE 560 /* get the BIOS video mode pointer */ 561 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8); 562 p = BIOS_SADDRTOLADDR(p); 563 if (ISMAPPED(p, sizeof(u_int32_t))) { 564 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p); 565 p = BIOS_SADDRTOLADDR(p); 566 if (ISMAPPED(p, V_MODE_PARAM_SIZE)) 567 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p); 568 } 569 #endif 570 571 return 0; 572 } 573 574 static void 575 update_adapter_info(video_adapter_t *adp, video_info_t *info) 576 { 577 adp->va_flags |= V_ADP_COLOR; 578 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window); 579 adp->va_window_size = info->vi_window_size; 580 adp->va_window_gran = info->vi_window_gran; 581 adp->va_window_orig = 0; 582 /* XXX */ 583 adp->va_buffer = info->vi_buffer; 584 adp->va_buffer_size = info->vi_buffer_size; 585 if (info->vi_mem_model == V_INFO_MM_VGAX) { 586 adp->va_line_width = info->vi_width/2; 587 } else if (info->vi_flags & V_INFO_GRAPHICS) { 588 switch (info->vi_depth/info->vi_planes) { 589 case 1: 590 adp->va_line_width = info->vi_width/8; 591 break; 592 case 2: 593 adp->va_line_width = info->vi_width/4; 594 break; 595 case 4: 596 adp->va_line_width = info->vi_width/2; 597 break; 598 case 8: 599 default: /* shouldn't happen */ 600 adp->va_line_width = info->vi_width; 601 break; 602 } 603 } else { 604 adp->va_line_width = info->vi_width; 605 } 606 adp->va_disp_start.x = 0; 607 adp->va_disp_start.y = 0; 608 bcopy(info, &adp->va_info, sizeof(adp->va_info)); 609 } 610 611 /* probe video adapters and return the number of detected adapters */ 612 static int 613 probe_adapters(void) 614 { 615 video_adapter_t *adp; 616 video_info_t info; 617 #ifndef VGA_NO_MODE_CHANGE 618 u_char *mp; 619 #endif 620 int i; 621 622 /* do this test only once */ 623 if (vga_init_done) 624 return 1; 625 vga_init_done = TRUE; 626 627 if (verify_adapter(&biosadapter) != 0) 628 return 0; 629 630 biosadapter.va_flags |= V_ADP_PROBED; 631 #ifndef VGA_NO_MODE_CHANGE 632 biosadapter.va_initial_bios_mode = readb(BIOS_PADDRTOVADDR(0x449)); 633 biosadapter.va_mode = biosadapter.va_initial_mode = 634 map_bios_mode_num(biosadapter.va_initial_bios_mode); 635 #endif 636 637 /* 638 * Ensure a zero start address. The registers are w/o for old 639 * hardware so it's too hard to relocate the active screen 640 * memory. 641 * This must be done before vga_save_state() for VGA. 642 */ 643 outb(CRTC, 12); 644 outb(CRTC + 1, 0); 645 outb(CRTC, 13); 646 outb(CRTC + 1, 0); 647 648 /* the video mode parameter table in VGA BIOS */ 649 /* NOTE: there can be only one VGA recognized by the video BIOS. 650 */ 651 adp = &biosadapter; 652 bzero(mode_map, sizeof(mode_map)); 653 vga_save_state(adp, &adpstate, sizeof(adpstate)); 654 for(i = 0; i < 16; i++) 655 adp->va_palette_regs[i] = adpstate.regs[35 + i]; 656 #ifdef VGA_NO_MODE_CHANGE 657 mode_map[adp->va_initial_mode] = adpstate.regs; 658 rows_offset = 1; 659 #else /* !VGA_NO_MODE_CHANGE */ 660 if (video_mode_ptr == NULL) { 661 mode_map[adp->va_initial_mode] = adpstate.regs; 662 rows_offset = 1; 663 } else { 664 /* discard modes that we are not familiar with */ 665 map_mode_table(mode_map, video_mode_ptr); 666 mp = get_mode_param(adp->va_initial_mode); 667 #ifndef VGA_KEEP_POWERON_MODE 668 if (mp != NULL) { 669 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs)); 670 rows_offset = adpstate.regs[1] + 1 - mp[1]; 671 } else 672 #endif 673 { 674 mode_map[adp->va_initial_mode] = adpstate.regs; 675 rows_offset = 1; 676 } 677 } 678 #endif /* VGA_NO_MODE_CHANGE */ 679 680 #ifndef VGA_NO_MODE_CHANGE 681 adp->va_flags |= V_ADP_MODECHANGE; 682 #endif 683 #ifndef VGA_NO_FONT_LOADING 684 adp->va_flags |= V_ADP_FONT; 685 #endif 686 687 /* XXX remove conflicting modes */ 688 for (i = 0; i < M_VGA_CG320; i++) { 689 if (vga_get_info(&biosadapter, i, &info)) 690 continue; 691 if ((info.vi_flags & V_INFO_COLOR) != V_ADP_COLOR) 692 mode_map[i] = NULL; 693 } 694 695 /* buffer address */ 696 vga_get_info(&biosadapter, biosadapter.va_initial_mode, &info); 697 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 698 update_adapter_info(&biosadapter, &info); 699 700 /* 701 * XXX: we should verify the following values for the primary adapter... 702 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463); 703 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02) 704 * ? 0 : V_ADP_COLOR; 705 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a); 706 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484); 707 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485); 708 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c); 709 */ 710 711 return 1; 712 } 713 714 /* set the scan line length in pixel */ 715 static int 716 set_line_length(video_adapter_t *adp, int pixel) 717 { 718 u_char *mp; 719 int ppw; /* pixels per word */ 720 int bpl; /* bytes per line */ 721 int count; 722 723 mp = get_mode_param(adp->va_mode); 724 if (mp == NULL) 725 return EINVAL; 726 727 switch (adp->va_info.vi_mem_model) { 728 case V_INFO_MM_PLANAR: 729 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes); 730 count = (pixel + ppw - 1)/ppw/2; 731 bpl = ((pixel + ppw - 1)/ppw/2)*4; 732 break; 733 case V_INFO_MM_PACKED: 734 count = (pixel + 7)/8; 735 bpl = ((pixel + 7)/8)*8; 736 break; 737 case V_INFO_MM_TEXT: 738 count = (pixel + 7)/8; /* columns */ 739 bpl = (pixel + 7)/8; /* columns */ 740 break; 741 default: 742 return ENODEV; 743 } 744 745 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */ 746 count *= 2; /* byte mode */ 747 outb(CRTC, 0x13); 748 outb(CRTC + 1, count); 749 adp->va_line_width = bpl; 750 751 return 0; 752 } 753 754 static int 755 set_display_start(video_adapter_t *adp, int x, int y) 756 { 757 int off; /* byte offset (graphics mode)/word offset (text mode) */ 758 int poff; /* pixel offset */ 759 int roff; /* row offset */ 760 int ppb; /* pixels per byte */ 761 762 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) { 763 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes); 764 off = y*adp->va_line_width + x/ppb; 765 roff = 0; 766 poff = x%ppb; 767 } else { 768 outb(TSIDX, 1); 769 if (inb(TSREG) & 1) 770 ppb = 9; 771 else 772 ppb = 8; 773 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb; 774 roff = y%adp->va_info.vi_cheight; 775 /* FIXME: is this correct? XXX */ 776 if (ppb == 8) 777 poff = x%ppb; 778 else 779 poff = (x + 8)%ppb; 780 } 781 782 /* start address */ 783 outb(CRTC, 0xc); /* high */ 784 outb(CRTC + 1, off >> 8); 785 outb(CRTC, 0xd); /* low */ 786 outb(CRTC + 1, off & 0xff); 787 788 /* horizontal pel pan */ 789 inb(CRTC + 6); 790 outb(ATC, 0x13 | 0x20); 791 outb(ATC, poff); 792 inb(CRTC + 6); 793 outb(ATC, 0x20); 794 795 /* preset row scan */ 796 outb(CRTC, 8); 797 outb(CRTC + 1, roff); 798 799 adp->va_disp_start.x = x; 800 adp->va_disp_start.y = y; 801 return 0; 802 } 803 804 #ifndef VGA_NO_MODE_CHANGE 805 #if defined(__x86_64__) /* XXX */ 806 static void 807 fill(int val, void *d, size_t size) 808 { 809 u_char *p = d; 810 811 while (size-- > 0) 812 *p++ = val; 813 } 814 #endif /* __x86_64__ */ 815 816 static void 817 filll_io(int val, vm_offset_t d, size_t size) 818 { 819 while (size-- > 0) { 820 writel(d, val); 821 d += sizeof(u_int32_t); 822 } 823 } 824 #endif /* !VGA_NO_MODE_CHANGE */ 825 826 /* entry points */ 827 828 static int 829 vga_error(void) 830 { 831 return ENODEV; 832 } 833 834 static int 835 vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 836 { 837 /* No VGA when booted via UEFI */ 838 if (probe_efi_fb(0) == 0) 839 return (ENXIO); 840 841 /* XXX Also abort if VGA isn't present according to ACPI FADT BootFlags */ 842 843 probe_adapters(); 844 if (unit != 0) 845 return ENXIO; 846 847 *adpp = &biosadapter; 848 849 return 0; 850 } 851 852 static int 853 vga_init(int unit, video_adapter_t *adp, int flags) 854 { 855 if ((unit != 0) || (adp == NULL) || !probe_done(adp)) 856 return ENXIO; 857 858 if (!init_done(adp)) { 859 /* nothing to do really... */ 860 adp->va_flags |= V_ADP_INITIALIZED; 861 } 862 863 if (!config_done(adp)) { 864 if (vid_register(adp) < 0) 865 return ENXIO; 866 adp->va_flags |= V_ADP_REGISTERED; 867 } 868 869 return 0; 870 } 871 872 /* 873 * get_info(): 874 * Return the video_info structure of the requested video mode. 875 */ 876 static int 877 vga_get_info(video_adapter_t *adp, int mode, video_info_t *info) 878 { 879 int i; 880 881 if (!vga_init_done) 882 return ENXIO; 883 884 #ifndef VGA_NO_MODE_CHANGE 885 if (adp->va_flags & V_ADP_MODECHANGE) { 886 /* 887 * If the parameter table entry for this mode is not found, 888 * the mode is not supported... 889 */ 890 if (get_mode_param(mode) == NULL) 891 return EINVAL; 892 } else 893 #endif /* VGA_NO_MODE_CHANGE */ 894 { 895 /* 896 * Even if we don't support video mode switching on this adapter, 897 * the information on the initial (thus current) video mode 898 * should be made available. 899 */ 900 if (mode != adp->va_initial_mode) 901 return EINVAL; 902 } 903 904 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 905 if (bios_vmode[i].vi_mode == NA) 906 continue; 907 if (mode == bios_vmode[i].vi_mode) { 908 *info = bios_vmode[i]; 909 /* XXX */ 910 info->vi_buffer_size = info->vi_window_size*info->vi_planes; 911 return 0; 912 } 913 } 914 return EINVAL; 915 } 916 917 /* 918 * query_mode(): 919 * Find a video mode matching the requested parameters. 920 * Fields filled with 0 are considered "don't care" fields and 921 * match any modes. 922 */ 923 static int 924 vga_query_mode(video_adapter_t *adp, video_info_t *info) 925 { 926 int i; 927 928 if (!vga_init_done) 929 return ENXIO; 930 931 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 932 if (bios_vmode[i].vi_mode == NA) 933 continue; 934 935 if ((info->vi_width != 0) 936 && (info->vi_width != bios_vmode[i].vi_width)) 937 continue; 938 if ((info->vi_height != 0) 939 && (info->vi_height != bios_vmode[i].vi_height)) 940 continue; 941 if ((info->vi_cwidth != 0) 942 && (info->vi_cwidth != bios_vmode[i].vi_cwidth)) 943 continue; 944 if ((info->vi_cheight != 0) 945 && (info->vi_cheight != bios_vmode[i].vi_cheight)) 946 continue; 947 if ((info->vi_depth != 0) 948 && (info->vi_depth != bios_vmode[i].vi_depth)) 949 continue; 950 if ((info->vi_planes != 0) 951 && (info->vi_planes != bios_vmode[i].vi_planes)) 952 continue; 953 /* XXX: should check pixel format, memory model */ 954 if ((info->vi_flags != 0) 955 && (info->vi_flags != bios_vmode[i].vi_flags)) 956 continue; 957 958 /* verify if this mode is supported on this adapter */ 959 if (vga_get_info(adp, bios_vmode[i].vi_mode, info)) 960 continue; 961 return 0; 962 } 963 return ENODEV; 964 } 965 966 /* 967 * set_mode(): 968 * Change the video mode. 969 */ 970 971 #ifndef VGA_NO_MODE_CHANGE 972 #ifdef VGA_WIDTH90 973 static void 974 set_width90(adp_state_t *params) 975 { 976 /* 977 * Based on code submitted by Kelly Yancey (kbyanc@freedomnet.com) 978 * and alexv@sui.gda.itesm.mx. 979 */ 980 params->regs[5] |= 1; /* toggle 8 pixel wide fonts */ 981 params->regs[10+0x0] = 0x6b; 982 params->regs[10+0x1] = 0x59; 983 params->regs[10+0x2] = 0x5a; 984 params->regs[10+0x3] = 0x8e; 985 params->regs[10+0x4] = 0x5e; 986 params->regs[10+0x5] = 0x8a; 987 params->regs[10+0x13] = 45; 988 params->regs[35+0x13] = 0; 989 } 990 #endif /* VGA_WIDTH90 */ 991 #endif /* !VGA_NO_MODE_CHANGE */ 992 993 static int 994 vga_set_mode(video_adapter_t *adp, int mode) 995 { 996 #ifndef VGA_NO_MODE_CHANGE 997 video_info_t info; 998 adp_state_t params; 999 1000 prologue(adp, V_ADP_MODECHANGE, ENODEV); 1001 1002 if (vga_get_info(adp, mode, &info)) 1003 return EINVAL; 1004 1005 lwkt_gettoken(&tty_token); 1006 1007 #if VGA_DEBUG > 1 1008 kprintf("vga_set_mode(): setting mode %d\n", mode); 1009 #endif 1010 1011 params.sig = V_STATE_SIG; 1012 bcopy(get_mode_param(mode), params.regs, sizeof(params.regs)); 1013 1014 switch (mode) { 1015 #ifdef VGA_WIDTH90 1016 case M_VGA_C90x60: case M_VGA_M90x60: 1017 set_width90(¶ms); 1018 /* FALLTHROUGH */ 1019 #endif 1020 case M_VGA_C80x60: case M_VGA_M80x60: 1021 params.regs[2] = 0x08; 1022 params.regs[19] = 0x47; 1023 goto special_480l; 1024 1025 #ifdef VGA_WIDTH90 1026 case M_VGA_C90x30: case M_VGA_M90x30: 1027 set_width90(¶ms); 1028 /* FALLTHROUGH */ 1029 #endif 1030 case M_VGA_C80x30: case M_VGA_M80x30: 1031 params.regs[19] = 0x4f; 1032 special_480l: 1033 params.regs[9] |= 0xc0; 1034 params.regs[16] = 0x08; 1035 params.regs[17] = 0x3e; 1036 params.regs[26] = 0xea; 1037 params.regs[28] = 0xdf; 1038 params.regs[31] = 0xe7; 1039 params.regs[32] = 0x04; 1040 goto setup_mode; 1041 1042 #ifdef VGA_WIDTH90 1043 case M_VGA_C90x43: case M_VGA_M90x43: 1044 set_width90(¶ms); 1045 /* FALLTHROUGH */ 1046 #endif 1047 case M_ENH_C80x43: case M_ENH_B80x43: 1048 params.regs[28] = 87; 1049 goto special_80x50; 1050 1051 #ifdef VGA_WIDTH90 1052 case M_VGA_C90x50: case M_VGA_M90x50: 1053 set_width90(¶ms); 1054 /* FALLTHROUGH */ 1055 #endif 1056 case M_VGA_C80x50: case M_VGA_M80x50: 1057 special_80x50: 1058 params.regs[2] = 8; 1059 params.regs[19] = 7; 1060 goto setup_mode; 1061 1062 #ifdef VGA_WIDTH90 1063 case M_VGA_C90x25: case M_VGA_M90x25: 1064 set_width90(¶ms); 1065 /* FALLTHROUGH */ 1066 #endif 1067 case M_VGA_C40x25: case M_VGA_C80x25: 1068 case M_VGA_M80x25: 1069 case M_B40x25: case M_C40x25: 1070 case M_B80x25: case M_C80x25: 1071 case M_ENH_B40x25: case M_ENH_C40x25: 1072 case M_ENH_B80x25: case M_ENH_C80x25: 1073 case M_EGAMONO80x25: 1074 1075 setup_mode: 1076 vga_load_state(adp, ¶ms); 1077 break; 1078 1079 case M_VGA_MODEX: 1080 /* "unchain" the VGA mode */ 1081 params.regs[5-1+0x04] &= 0xf7; 1082 params.regs[5-1+0x04] |= 0x04; 1083 /* turn off doubleword mode */ 1084 params.regs[10+0x14] &= 0xbf; 1085 /* turn off word addressing */ 1086 params.regs[10+0x17] |= 0x40; 1087 /* set logical screen width */ 1088 params.regs[10+0x13] = 80; 1089 /* set 240 lines */ 1090 params.regs[10+0x11] = 0x2c; 1091 params.regs[10+0x06] = 0x0d; 1092 params.regs[10+0x07] = 0x3e; 1093 params.regs[10+0x10] = 0xea; 1094 params.regs[10+0x11] = 0xac; 1095 params.regs[10+0x12] = 0xdf; 1096 params.regs[10+0x15] = 0xe7; 1097 params.regs[10+0x16] = 0x06; 1098 /* set vertical sync polarity to reflect aspect ratio */ 1099 params.regs[9] = 0xe3; 1100 goto setup_grmode; 1101 1102 case M_BG320: case M_CG320: case M_BG640: 1103 case M_CG320_D: case M_CG640_E: 1104 case M_CG640x350: case M_ENH_CG640: 1105 case M_BG640x480: case M_CG640x480: case M_VGA_CG320: 1106 1107 setup_grmode: 1108 vga_load_state(adp, ¶ms); 1109 break; 1110 1111 default: 1112 lwkt_reltoken(&tty_token); 1113 return EINVAL; 1114 } 1115 1116 adp->va_mode = mode; 1117 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1118 update_adapter_info(adp, &info); 1119 1120 /* move hardware cursor out of the way */ 1121 (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1); 1122 1123 lwkt_reltoken(&tty_token); 1124 return 0; 1125 #else /* VGA_NO_MODE_CHANGE */ 1126 return ENODEV; 1127 #endif /* VGA_NO_MODE_CHANGE */ 1128 } 1129 1130 #ifndef VGA_NO_FONT_LOADING 1131 1132 static void 1133 set_font_mode(video_adapter_t *adp, u_char *buf) 1134 { 1135 crit_enter(); 1136 1137 /* save register values */ 1138 outb(TSIDX, 0x02); buf[0] = inb(TSREG); 1139 outb(TSIDX, 0x04); buf[1] = inb(TSREG); 1140 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG); 1141 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG); 1142 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG); 1143 inb(CRTC + 6); 1144 outb(ATC, 0x10); buf[5] = inb(ATC + 1); 1145 1146 /* setup vga for loading fonts */ 1147 inb(CRTC + 6); /* reset flip-flop */ 1148 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01); 1149 inb(CRTC + 6); /* reset flip-flop */ 1150 outb(ATC, 0x20); /* enable palette */ 1151 outw(TSIDX, 0x0402); 1152 outw(TSIDX, 0x0704); 1153 outw(GDCIDX, 0x0204); 1154 outw(GDCIDX, 0x0005); 1155 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */ 1156 1157 crit_exit(); 1158 } 1159 1160 static void 1161 set_normal_mode(video_adapter_t *adp, u_char *buf) 1162 { 1163 crit_enter(); 1164 1165 /* setup vga for normal operation mode again */ 1166 inb(CRTC + 6); /* reset flip-flop */ 1167 outb(ATC, 0x10); outb(ATC, buf[5]); 1168 inb(CRTC + 6); /* reset flip-flop */ 1169 outb(ATC, 0x20); /* enable palette */ 1170 outw(TSIDX, 0x0002 | (buf[0] << 8)); 1171 outw(TSIDX, 0x0004 | (buf[1] << 8)); 1172 outw(GDCIDX, 0x0004 | (buf[2] << 8)); 1173 outw(GDCIDX, 0x0005 | (buf[3] << 8)); 1174 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8)); 1175 1176 crit_exit(); 1177 } 1178 1179 #endif /* VGA_NO_FONT_LOADING */ 1180 1181 /* 1182 * save_font(): 1183 * Read the font data in the requested font page from the video adapter. 1184 */ 1185 static int 1186 vga_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1187 int ch, int count) 1188 { 1189 #ifndef VGA_NO_FONT_LOADING 1190 u_char buf[PARAM_BUFSIZE]; 1191 vm_offset_t segment; 1192 int c; 1193 1194 prologue(adp, V_ADP_FONT, ENODEV); 1195 1196 if (fontsize < 14) { 1197 /* FONT_8 */ 1198 fontsize = 8; 1199 } else if (fontsize >= 32) { 1200 fontsize = 32; 1201 } else if (fontsize >= 16) { 1202 /* FONT_16 */ 1203 fontsize = 16; 1204 } else { 1205 /* FONT_14 */ 1206 fontsize = 14; 1207 } 1208 1209 if (page < 0 || page >= 8) 1210 return EINVAL; 1211 segment = FONT_BUF + 0x4000*page; 1212 if (page > 3) 1213 segment -= 0xe000; 1214 1215 set_font_mode(adp, buf); 1216 if (fontsize == 32) { 1217 bcopy_fromio((uintptr_t)segment + ch*32, data, fontsize*count); 1218 } else { 1219 for (c = ch; count > 0; ++c, --count) { 1220 bcopy_fromio((uintptr_t)segment + c*32, data, fontsize); 1221 data += fontsize; 1222 } 1223 } 1224 set_normal_mode(adp, buf); 1225 1226 return 0; 1227 #else /* VGA_NO_FONT_LOADING */ 1228 return ENODEV; 1229 #endif /* VGA_NO_FONT_LOADING */ 1230 } 1231 1232 /* 1233 * load_font(): 1234 * Set the font data in the requested font page. 1235 * NOTE: it appears that some recent video adapters do not support 1236 * the font page other than 0... XXX 1237 */ 1238 static int 1239 vga_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1240 int ch, int count) 1241 { 1242 #ifndef VGA_NO_FONT_LOADING 1243 u_char buf[PARAM_BUFSIZE]; 1244 vm_offset_t segment; 1245 int c; 1246 1247 prologue(adp, V_ADP_FONT, ENODEV); 1248 1249 if (fontsize < 14) { 1250 /* FONT_8 */ 1251 fontsize = 8; 1252 } else if (fontsize >= 32) { 1253 fontsize = 32; 1254 } else if (fontsize >= 16) { 1255 /* FONT_16 */ 1256 fontsize = 16; 1257 } else { 1258 /* FONT_14 */ 1259 fontsize = 14; 1260 } 1261 1262 if (page < 0 || page >= 8) 1263 return EINVAL; 1264 segment = FONT_BUF + 0x4000*page; 1265 if (page > 3) 1266 segment -= 0xe000; 1267 1268 set_font_mode(adp, buf); 1269 if (fontsize == 32) { 1270 bcopy_toio(data, (uintptr_t)segment + ch*32, fontsize*count); 1271 } else { 1272 for (c = ch; count > 0; ++c, --count) { 1273 bcopy_toio(data, (uintptr_t)segment + c*32, fontsize); 1274 data += fontsize; 1275 } 1276 } 1277 set_normal_mode(adp, buf); 1278 1279 return 0; 1280 #else /* VGA_NO_FONT_LOADING */ 1281 return ENODEV; 1282 #endif /* VGA_NO_FONT_LOADING */ 1283 } 1284 1285 /* 1286 * show_font(): 1287 * Activate the requested font page. 1288 * NOTE: it appears that some recent video adapters do not support 1289 * the font page other than 0... XXX 1290 */ 1291 static int 1292 vga_show_font(video_adapter_t *adp, int page) 1293 { 1294 #ifndef VGA_NO_FONT_LOADING 1295 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f }; 1296 1297 prologue(adp, V_ADP_FONT, ENODEV); 1298 if (page < 0 || page >= 8) 1299 return EINVAL; 1300 1301 crit_enter(); 1302 outb(TSIDX, 0x03); outb(TSREG, cg[page]); 1303 crit_exit(); 1304 1305 return 0; 1306 #else /* VGA_NO_FONT_LOADING */ 1307 return ENODEV; 1308 #endif /* VGA_NO_FONT_LOADING */ 1309 } 1310 1311 /* 1312 * save_palette(): 1313 * Read DAC values. The values have expressed in 8 bits. 1314 * 1315 * VGA 1316 */ 1317 static int 1318 vga_save_palette(video_adapter_t *adp, u_char *palette) 1319 { 1320 int i; 1321 1322 prologue(adp, V_ADP_PALETTE, ENODEV); 1323 1324 /* 1325 * We store 8 bit values in the palette buffer, while the standard 1326 * VGA has 6 bit DAC . 1327 */ 1328 outb(PALRADR, 0x00); 1329 for (i = 0; i < 256*3; ++i) 1330 palette[i] = inb(PALDATA) << 2; 1331 inb(CRTC + 6); /* reset flip/flop */ 1332 return 0; 1333 } 1334 1335 static int 1336 vga_save_palette2(video_adapter_t *adp, int base, int count, 1337 u_char *r, u_char *g, u_char *b) 1338 { 1339 int i; 1340 1341 prologue(adp, V_ADP_PALETTE, ENODEV); 1342 1343 outb(PALRADR, base); 1344 for (i = 0; i < count; ++i) { 1345 r[i] = inb(PALDATA) << 2; 1346 g[i] = inb(PALDATA) << 2; 1347 b[i] = inb(PALDATA) << 2; 1348 } 1349 inb(CRTC + 6); /* reset flip/flop */ 1350 return 0; 1351 } 1352 1353 /* 1354 * load_palette(): 1355 * Set DAC values. 1356 * 1357 * VGA 1358 */ 1359 static int 1360 vga_load_palette(video_adapter_t *adp, const u_char *palette) 1361 { 1362 int i; 1363 1364 prologue(adp, V_ADP_PALETTE, ENODEV); 1365 1366 outb(PIXMASK, 0xff); /* no pixelmask */ 1367 outb(PALWADR, 0x00); 1368 for (i = 0; i < 256*3; ++i) 1369 outb(PALDATA, palette[i] >> 2); 1370 inb(CRTC + 6); /* reset flip/flop */ 1371 outb(ATC, 0x20); /* enable palette */ 1372 return 0; 1373 } 1374 1375 static int 1376 vga_load_palette2(video_adapter_t *adp, int base, int count, 1377 u_char *r, u_char *g, u_char *b) 1378 { 1379 int i; 1380 1381 prologue(adp, V_ADP_PALETTE, ENODEV); 1382 1383 outb(PIXMASK, 0xff); /* no pixelmask */ 1384 outb(PALWADR, base); 1385 for (i = 0; i < count; ++i) { 1386 outb(PALDATA, r[i] >> 2); 1387 outb(PALDATA, g[i] >> 2); 1388 outb(PALDATA, b[i] >> 2); 1389 } 1390 inb(CRTC + 6); /* reset flip/flop */ 1391 outb(ATC, 0x20); /* enable palette */ 1392 return 0; 1393 } 1394 1395 /* 1396 * set_border(): 1397 * Change the border color. 1398 */ 1399 static int 1400 vga_set_border(video_adapter_t *adp, int color) 1401 { 1402 prologue(adp, V_ADP_BORDER, ENODEV); 1403 1404 inb(CRTC + 6); /* reset flip-flop */ 1405 outb(ATC, 0x31); outb(ATC, color & 0xff); 1406 1407 return 0; 1408 } 1409 1410 /* 1411 * save_state(): 1412 * Read video register values. 1413 * NOTE: this function only reads the standard VGA registers. 1414 * any extra/extended registers of SVGA adapters are not saved. 1415 */ 1416 static int 1417 vga_save_state(video_adapter_t *adp, void *p, size_t size) 1418 { 1419 video_info_t info; 1420 u_char *buf; 1421 int i, j; 1422 1423 if (size == 0) { 1424 /* return the required buffer size */ 1425 prologue(adp, V_ADP_STATESAVE, 0); 1426 return sizeof(adp_state_t); 1427 } else { 1428 prologue(adp, V_ADP_STATESAVE, ENODEV); 1429 if (size < sizeof(adp_state_t)) 1430 return EINVAL; 1431 } 1432 ((adp_state_t *)p)->sig = V_STATE_SIG; 1433 buf = ((adp_state_t *)p)->regs; 1434 bzero(buf, V_MODE_PARAM_SIZE); 1435 1436 crit_enter(); 1437 1438 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 1439 for (i = 0, j = 5; i < 4; i++) { 1440 outb(TSIDX, i + 1); 1441 buf[j++] = inb(TSREG); 1442 } 1443 buf[9] = inb(MISC + 10); /* dot-clock */ 1444 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 1445 1446 for (i = 0, j = 10; i < 25; i++) { /* crtc */ 1447 outb(CRTC, i); 1448 buf[j++] = inb(CRTC + 1); 1449 } 1450 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */ 1451 inb(CRTC + 6); /* reset flip-flop */ 1452 outb(ATC, i); 1453 buf[j++] = inb(ATC + 1); 1454 } 1455 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */ 1456 outb(GDCIDX, i); 1457 buf[j++] = inb(GDCREG); 1458 } 1459 inb(CRTC + 6); /* reset flip-flop */ 1460 outb(ATC, 0x20); /* enable palette */ 1461 1462 crit_exit(); 1463 1464 #if 1 1465 if (vga_get_info(adp, adp->va_mode, &info) == 0) { 1466 if (info.vi_flags & V_INFO_GRAPHICS) { 1467 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */ 1468 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */ 1469 } else { 1470 buf[0] = info.vi_width; /* COLS */ 1471 buf[1] = info.vi_height - 1; /* ROWS */ 1472 } 1473 buf[2] = info.vi_cheight; /* POINTS */ 1474 } else { 1475 /* XXX: shouldn't be happening... */ 1476 kprintf("vga%d: %s: failed to obtain mode info. (vga_save_state())\n", 1477 adp->va_unit, adp->va_name); 1478 } 1479 #else 1480 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */ 1481 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */ 1482 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */ 1483 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c)); 1484 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d)); 1485 #endif 1486 1487 return 0; 1488 } 1489 1490 /* 1491 * load_state(): 1492 * Set video registers at once. 1493 * NOTE: this function only updates the standard VGA registers. 1494 * any extra/extended registers of SVGA adapters are not changed. 1495 */ 1496 static int 1497 vga_load_state(video_adapter_t *adp, void *p) 1498 { 1499 u_char *buf; 1500 int i; 1501 1502 prologue(adp, V_ADP_STATELOAD, ENODEV); 1503 if (((adp_state_t *)p)->sig != V_STATE_SIG) 1504 return EINVAL; 1505 1506 buf = ((adp_state_t *)p)->regs; 1507 1508 #if VGA_DEBUG > 1 1509 hexdump(buf, V_MODE_PARAM_SIZE, NULL, HD_OMIT_CHARS | HD_OMIT_COUNT); 1510 #endif 1511 1512 crit_enter(); 1513 1514 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 1515 for (i = 0; i < 4; ++i) { /* program sequencer */ 1516 outb(TSIDX, i + 1); 1517 outb(TSREG, buf[i + 5]); 1518 } 1519 outb(MISC, buf[9]); /* set dot-clock */ 1520 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 1521 outb(CRTC, 0x11); 1522 outb(CRTC + 1, inb(CRTC + 1) & 0x7F); 1523 for (i = 0; i < 25; ++i) { /* program crtc */ 1524 outb(CRTC, i); 1525 outb(CRTC + 1, buf[i + 10]); 1526 } 1527 inb(CRTC + 6); /* reset flip-flop */ 1528 for (i = 0; i < 20; ++i) { /* program attribute ctrl */ 1529 outb(ATC, i); 1530 outb(ATC, buf[i + 35]); 1531 } 1532 for (i = 0; i < 9; ++i) { /* program graph data ctrl */ 1533 outb(GDCIDX, i); 1534 outb(GDCREG, buf[i + 55]); 1535 } 1536 inb(CRTC + 6); /* reset flip-flop */ 1537 outb(ATC, 0x20); /* enable palette */ 1538 1539 #if 0 /* XXX a temporary workaround for kernel panic */ 1540 #ifndef VGA_NO_MODE_CHANGE 1541 if (adp->va_unit == V_ADP_PRIMARY) { 1542 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */ 1543 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */ 1544 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */ 1545 #if 0 1546 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]); 1547 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]); 1548 #endif 1549 } 1550 #endif /* !VGA_NO_MODE_CHANGE */ 1551 #endif /* XXX */ 1552 1553 crit_exit(); 1554 return 0; 1555 } 1556 1557 /* 1558 * set_origin(): 1559 * Change the origin (window mapping) of the banked frame buffer. 1560 */ 1561 static int 1562 vga_set_origin(video_adapter_t *adp, off_t offset) 1563 { 1564 /* 1565 * The standard video modes do not require window mapping; 1566 * always return error. 1567 */ 1568 return ENODEV; 1569 } 1570 1571 /* 1572 * read_hw_cursor(): 1573 * Read the position of the hardware text cursor. 1574 */ 1575 static int 1576 vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 1577 { 1578 u_int16_t off; 1579 1580 if (!vga_init_done) 1581 return ENXIO; 1582 1583 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 1584 return ENODEV; 1585 1586 crit_enter(); 1587 outb(CRTC, 14); 1588 off = inb(CRTC + 1); 1589 outb(CRTC, 15); 1590 off = (off << 8) | inb(CRTC + 1); 1591 crit_exit(); 1592 1593 *row = off / adp->va_info.vi_width; 1594 *col = off % adp->va_info.vi_width; 1595 1596 return 0; 1597 } 1598 1599 /* 1600 * set_hw_cursor(): 1601 * Move the hardware text cursor. If col and row are both -1, 1602 * the cursor won't be shown. 1603 */ 1604 static int 1605 vga_set_hw_cursor(video_adapter_t *adp, int col, int row) 1606 { 1607 u_int16_t off; 1608 1609 if (!vga_init_done) 1610 return ENXIO; 1611 1612 if ((col == -1) && (row == -1)) { 1613 off = -1; 1614 } else { 1615 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 1616 return ENODEV; 1617 off = row*adp->va_info.vi_width + col; 1618 } 1619 1620 crit_enter(); 1621 outb(CRTC, 14); 1622 outb(CRTC + 1, off >> 8); 1623 outb(CRTC, 15); 1624 outb(CRTC + 1, off & 0x00ff); 1625 crit_exit(); 1626 1627 return 0; 1628 } 1629 1630 /* 1631 * set_hw_cursor_shape(): 1632 * Change the shape of the hardware text cursor. If the height is 1633 * zero or negative, the cursor won't be shown. 1634 */ 1635 static int 1636 vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 1637 int celsize, int blink) 1638 { 1639 if (!vga_init_done) 1640 return ENXIO; 1641 1642 crit_enter(); 1643 if (height <= 0) { 1644 /* make the cursor invisible */ 1645 outb(CRTC, 10); 1646 outb(CRTC + 1, 32); 1647 outb(CRTC, 11); 1648 outb(CRTC + 1, 0); 1649 } else { 1650 outb(CRTC, 10); 1651 outb(CRTC + 1, celsize - base - height); 1652 outb(CRTC, 11); 1653 outb(CRTC + 1, celsize - base - 1); 1654 } 1655 crit_exit(); 1656 1657 return 0; 1658 } 1659 1660 /* 1661 * blank_display() 1662 * Put the display in power save/power off mode. 1663 */ 1664 static int 1665 vga_blank_display(video_adapter_t *adp, int mode) 1666 { 1667 u_char val; 1668 1669 crit_enter(); 1670 switch (mode) { 1671 case V_DISPLAY_SUSPEND: 1672 case V_DISPLAY_STAND_BY: 1673 outb(TSIDX, 0x01); 1674 val = inb(TSREG); 1675 outb(TSIDX, 0x01); 1676 outb(TSREG, val | 0x20); 1677 outb(CRTC, 0x17); 1678 val = inb(CRTC + 1); 1679 outb(CRTC + 1, val & ~0x80); 1680 break; 1681 case V_DISPLAY_BLANK: 1682 outb(TSIDX, 0x01); 1683 val = inb(TSREG); 1684 outb(TSIDX, 0x01); 1685 outb(TSREG, val | 0x20); 1686 break; 1687 case V_DISPLAY_ON: 1688 outb(TSIDX, 0x01); 1689 val = inb(TSREG); 1690 outb(TSIDX, 0x01); 1691 outb(TSREG, val & 0xDF); 1692 outb(CRTC, 0x17); 1693 val = inb(CRTC + 1); 1694 outb(CRTC + 1, val | 0x80); 1695 break; 1696 } 1697 crit_exit(); 1698 1699 return 0; 1700 } 1701 1702 /* 1703 * mmap(): 1704 * Mmap frame buffer. 1705 */ 1706 static int 1707 vga_mmap_buf(video_adapter_t *adp, vm_offset_t offset, int prot) 1708 { 1709 if (adp->va_info.vi_flags & V_INFO_LINEAR) 1710 return -1; 1711 1712 #if VGA_DEBUG > 0 1713 kprintf("vga_mmap_buf(): window:0x%x, offset:%p\n", 1714 adp->va_info.vi_window, (void *)offset); 1715 #endif 1716 1717 /* XXX: is this correct? */ 1718 if (offset > adp->va_window_size - PAGE_SIZE) 1719 return -1; 1720 1721 #if defined(__x86_64__) 1722 return x86_64_btop(adp->va_info.vi_window + offset); 1723 #else 1724 #error "vga_mmap_buf needs to return something" 1725 #endif 1726 } 1727 1728 #ifndef VGA_NO_MODE_CHANGE 1729 1730 static void 1731 planar_fill(video_adapter_t *adp, int val) 1732 { 1733 int length; 1734 int at; /* position in the frame buffer */ 1735 int l; 1736 1737 lwkt_gettoken(&tty_token); 1738 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 1739 outw(GDCIDX, 0x0003); /* data rotate/function select */ 1740 outw(GDCIDX, 0x0f01); /* set/reset enable */ 1741 outw(GDCIDX, 0xff08); /* bit mask */ 1742 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 1743 at = 0; 1744 length = adp->va_line_width*adp->va_info.vi_height; 1745 while (length > 0) { 1746 l = imin(length, adp->va_window_size); 1747 (*vidsw[adp->va_index]->set_win_org)(adp, at); 1748 bzero_io(adp->va_window, l); 1749 length -= l; 1750 at += l; 1751 } 1752 outw(GDCIDX, 0x0000); /* set/reset */ 1753 outw(GDCIDX, 0x0001); /* set/reset enable */ 1754 lwkt_reltoken(&tty_token); 1755 } 1756 1757 static void 1758 packed_fill(video_adapter_t *adp, int val) 1759 { 1760 int length; 1761 int at; /* position in the frame buffer */ 1762 int l; 1763 1764 lwkt_gettoken(&tty_token); 1765 at = 0; 1766 length = adp->va_line_width*adp->va_info.vi_height; 1767 while (length > 0) { 1768 l = imin(length, adp->va_window_size); 1769 (*vidsw[adp->va_index]->set_win_org)(adp, at); 1770 fill_io(val, adp->va_window, l); 1771 length -= l; 1772 at += l; 1773 } 1774 lwkt_reltoken(&tty_token); 1775 } 1776 1777 static void 1778 direct_fill(video_adapter_t *adp, int val) 1779 { 1780 int length; 1781 int at; /* position in the frame buffer */ 1782 int l; 1783 1784 lwkt_gettoken(&tty_token); 1785 at = 0; 1786 length = adp->va_line_width*adp->va_info.vi_height; 1787 while (length > 0) { 1788 l = imin(length, adp->va_window_size); 1789 (*vidsw[adp->va_index]->set_win_org)(adp, at); 1790 switch (adp->va_info.vi_pixel_size) { 1791 case sizeof(u_int16_t): 1792 fillw_io(val, adp->va_window, l/sizeof(u_int16_t)); 1793 break; 1794 case 3: 1795 /* FIXME */ 1796 break; 1797 case sizeof(u_int32_t): 1798 filll_io(val, adp->va_window, l/sizeof(u_int32_t)); 1799 break; 1800 } 1801 length -= l; 1802 at += l; 1803 } 1804 lwkt_reltoken(&tty_token); 1805 } 1806 1807 static int 1808 vga_clear(video_adapter_t *adp) 1809 { 1810 switch (adp->va_info.vi_mem_model) { 1811 case V_INFO_MM_TEXT: 1812 /* do nothing? XXX */ 1813 break; 1814 case V_INFO_MM_PLANAR: 1815 planar_fill(adp, 0); 1816 break; 1817 case V_INFO_MM_PACKED: 1818 packed_fill(adp, 0); 1819 break; 1820 case V_INFO_MM_DIRECT: 1821 direct_fill(adp, 0); 1822 break; 1823 } 1824 return 0; 1825 } 1826 1827 static int 1828 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 1829 { 1830 return ENODEV; 1831 } 1832 1833 static int 1834 vga_bitblt(video_adapter_t *adp,...) 1835 { 1836 /* FIXME */ 1837 return ENODEV; 1838 } 1839 1840 #endif /* !VGA_NO_MODE_CHANGE */ 1841 1842 static int 1843 get_palette(video_adapter_t *adp, int base, int count, 1844 u_char *red, u_char *green, u_char *blue, u_char *trans) 1845 { 1846 u_char *r; 1847 u_char *g; 1848 u_char *b; 1849 1850 if (count < 0 || base < 0 || count > 256 || base > 256 || 1851 base + count > 256) 1852 return EINVAL; 1853 1854 r = kmalloc(count*3, M_DEVBUF, M_WAITOK); 1855 g = r + count; 1856 b = g + count; 1857 if (vga_save_palette2(adp, base, count, r, g, b)) { 1858 kfree(r, M_DEVBUF); 1859 return ENODEV; 1860 } 1861 copyout(r, red, count); 1862 copyout(g, green, count); 1863 copyout(b, blue, count); 1864 if (trans != NULL) { 1865 bzero(r, count); 1866 copyout(r, trans, count); 1867 } 1868 kfree(r, M_DEVBUF); 1869 1870 return 0; 1871 } 1872 1873 static int 1874 set_palette(video_adapter_t *adp, int base, int count, 1875 u_char *red, u_char *green, u_char *blue, u_char *trans) 1876 { 1877 u_char *r; 1878 u_char *g; 1879 u_char *b; 1880 int err; 1881 1882 if (count < 0 || base < 0 || count > 256 || base > 256 || 1883 base + count > 256) 1884 return EINVAL; 1885 1886 r = kmalloc(count*3, M_DEVBUF, M_WAITOK); 1887 g = r + count; 1888 b = g + count; 1889 err = copyin(red, r, count); 1890 if (!err) 1891 err = copyin(green, g, count); 1892 if (!err) 1893 err = copyin(blue, b, count); 1894 if (!err) 1895 err = vga_load_palette2(adp, base, count, r, g, b); 1896 kfree(r, M_DEVBUF); 1897 1898 return (err ? ENODEV : 0); 1899 } 1900 1901 static int 1902 vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 1903 { 1904 switch (cmd) { 1905 case FBIO_GETWINORG: /* get frame buffer window origin */ 1906 *(u_int *)arg = 0; 1907 return 0; 1908 1909 case FBIO_SETWINORG: /* set frame buffer window origin */ 1910 return ENODEV; 1911 1912 case FBIO_SETDISPSTART: /* set display start address */ 1913 return (set_display_start(adp, 1914 ((video_display_start_t *)arg)->x, 1915 ((video_display_start_t *)arg)->y) 1916 ? ENODEV : 0); 1917 1918 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */ 1919 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0); 1920 1921 case FBIO_GETPALETTE: /* get color palette */ 1922 return get_palette(adp, ((video_color_palette_t *)arg)->index, 1923 ((video_color_palette_t *)arg)->count, 1924 ((video_color_palette_t *)arg)->red, 1925 ((video_color_palette_t *)arg)->green, 1926 ((video_color_palette_t *)arg)->blue, 1927 ((video_color_palette_t *)arg)->transparent); 1928 1929 case FBIO_SETPALETTE: /* set color palette */ 1930 return set_palette(adp, ((video_color_palette_t *)arg)->index, 1931 ((video_color_palette_t *)arg)->count, 1932 ((video_color_palette_t *)arg)->red, 1933 ((video_color_palette_t *)arg)->green, 1934 ((video_color_palette_t *)arg)->blue, 1935 ((video_color_palette_t *)arg)->transparent); 1936 1937 case FBIOGTYPE: /* get frame buffer type info. */ 1938 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type); 1939 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height; 1940 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width; 1941 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth; 1942 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8)) 1943 ((struct fbtype *)arg)->fb_cmsize = 0; 1944 else 1945 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth; 1946 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size; 1947 return 0; 1948 1949 case FBIOGETCMAP: /* get color palette */ 1950 return get_palette(adp, ((struct fbcmap *)arg)->index, 1951 ((struct fbcmap *)arg)->count, 1952 ((struct fbcmap *)arg)->red, 1953 ((struct fbcmap *)arg)->green, 1954 ((struct fbcmap *)arg)->blue, NULL); 1955 1956 case FBIOPUTCMAP: /* set color palette */ 1957 return set_palette(adp, ((struct fbcmap *)arg)->index, 1958 ((struct fbcmap *)arg)->count, 1959 ((struct fbcmap *)arg)->red, 1960 ((struct fbcmap *)arg)->green, 1961 ((struct fbcmap *)arg)->blue, NULL); 1962 1963 default: 1964 return fb_commonioctl(adp, cmd, arg); 1965 } 1966 } 1967 1968 /* 1969 * diag(): 1970 * Print some information about the video adapter and video modes, 1971 * with requested level of details. 1972 */ 1973 static int 1974 vga_diag(video_adapter_t *adp, int level) 1975 { 1976 u_char *mp; 1977 #if FB_DEBUG > 1 1978 video_info_t info; 1979 int i; 1980 #endif 1981 1982 if (!vga_init_done) 1983 return ENXIO; 1984 1985 #if FB_DEBUG > 1 1986 #ifndef VGA_NO_MODE_CHANGE 1987 kprintf("vga: DCC code:0x%02x\n", 1988 readb(BIOS_PADDRTOVADDR(0x488))); 1989 kprintf("vga: CRTC:0x%x, video option:0x%02x, ", 1990 readw(BIOS_PADDRTOVADDR(0x463)), 1991 readb(BIOS_PADDRTOVADDR(0x487))); 1992 kprintf("rows:%d, cols:%d, font height:%d\n", 1993 readb(BIOS_PADDRTOVADDR(0x44a)), 1994 readb(BIOS_PADDRTOVADDR(0x484)) + 1, 1995 readb(BIOS_PADDRTOVADDR(0x485))); 1996 kprintf("vga: param table:%p\n", video_mode_ptr); 1997 kprintf("vga: rows_offset:%d\n", rows_offset); 1998 #endif 1999 #endif /* FB_DEBUG > 1 */ 2000 2001 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level); 2002 2003 #if FB_DEBUG > 1 2004 if (adp->va_flags & V_ADP_MODECHANGE) { 2005 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 2006 if (bios_vmode[i].vi_mode == NA) 2007 continue; 2008 if (get_mode_param(bios_vmode[i].vi_mode) == NULL) 2009 continue; 2010 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level); 2011 } 2012 } else { 2013 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */ 2014 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level); 2015 } 2016 #endif /* FB_DEBUG > 1 */ 2017 2018 #ifndef VGA_NO_MODE_CHANGE 2019 if (video_mode_ptr == NULL) 2020 kprintf("vga%d: %s: WARNING: video mode switching is not " 2021 "fully supported on this adapter\n", 2022 adp->va_unit, adp->va_name); 2023 #endif 2024 if (level <= 0) 2025 return 0; 2026 2027 kprintf("VGA parameters upon power-up\n"); 2028 hexdump(adpstate.regs, sizeof(adpstate.regs), NULL, 2029 HD_OMIT_CHARS | HD_OMIT_COUNT); 2030 2031 mp = get_mode_param(adp->va_initial_mode); 2032 if (mp == NULL) /* this shouldn't be happening */ 2033 return 0; 2034 kprintf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode); 2035 hexdump(adpstate2.regs, sizeof(adpstate2.regs), NULL, 2036 HD_OMIT_CHARS | HD_OMIT_COUNT); 2037 kprintf("VGA parameters to be used for mode %d\n", adp->va_initial_mode); 2038 hexdump(mp, V_MODE_PARAM_SIZE, NULL, HD_OMIT_CHARS | HD_OMIT_COUNT); 2039 2040 return 0; 2041 } 2042