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 #ifdef __i386__ 51 #include <machine/pc/bios.h> 52 #endif 53 54 #include <vm/vm.h> 55 #include <vm/vm_param.h> 56 #include <vm/pmap.h> 57 58 #include "fbreg.h" 59 #include "vgareg.h" 60 61 #ifndef VGA_DEBUG 62 #define VGA_DEBUG 0 63 #endif 64 65 /* machine/pc/bios.h has got too much i386-specific stuff in it */ 66 #ifndef BIOS_PADDRTOVADDR 67 #define BIOS_PADDRTOVADDR(x) (((x) - ISA_HOLE_START) + atdevbase) 68 #endif 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 int (*vga_sub_configure)(int flags); 184 #if 0 185 static int vga_nop(void); 186 #endif 187 static int vga_error(void); 188 static vi_probe_t vga_probe; 189 static vi_init_t vga_init; 190 static vi_get_info_t vga_get_info; 191 static vi_query_mode_t vga_query_mode; 192 static vi_set_mode_t vga_set_mode; 193 static vi_save_font_t vga_save_font; 194 static vi_load_font_t vga_load_font; 195 static vi_show_font_t vga_show_font; 196 static vi_save_palette_t vga_save_palette; 197 static vi_load_palette_t vga_load_palette; 198 static vi_set_border_t vga_set_border; 199 static vi_save_state_t vga_save_state; 200 static vi_load_state_t vga_load_state; 201 static vi_set_win_org_t vga_set_origin; 202 static vi_read_hw_cursor_t vga_read_hw_cursor; 203 static vi_set_hw_cursor_t vga_set_hw_cursor; 204 static vi_set_hw_cursor_shape_t vga_set_hw_cursor_shape; 205 static vi_blank_display_t vga_blank_display; 206 static vi_mmap_t vga_mmap_buf; 207 static vi_ioctl_t vga_dev_ioctl; 208 #ifndef VGA_NO_MODE_CHANGE 209 static vi_clear_t vga_clear; 210 static vi_fill_rect_t vga_fill_rect; 211 static vi_bitblt_t vga_bitblt; 212 #else /* VGA_NO_MODE_CHANGE */ 213 #define vga_clear (vi_clear_t *)vga_error 214 #define vga_fill_rect (vi_fill_rect_t *)vga_error 215 #define vga_bitblt (vi_bitblt_t *)vga_error 216 #endif 217 static vi_diag_t vga_diag; 218 219 static video_switch_t vgavidsw = { 220 vga_probe, 221 vga_init, 222 vga_get_info, 223 vga_query_mode, 224 vga_set_mode, 225 vga_save_font, 226 vga_load_font, 227 vga_show_font, 228 vga_save_palette, 229 vga_load_palette, 230 vga_set_border, 231 vga_save_state, 232 vga_load_state, 233 vga_set_origin, 234 vga_read_hw_cursor, 235 vga_set_hw_cursor, 236 vga_set_hw_cursor_shape, 237 vga_blank_display, 238 vga_mmap_buf, 239 vga_dev_ioctl, 240 vga_clear, 241 vga_fill_rect, 242 vga_bitblt, 243 vga_error, 244 vga_error, 245 vga_diag, 246 }; 247 248 VIDEO_DRIVER(vga, vgavidsw, vga_configure); 249 250 /* VGA BIOS standard video modes */ 251 #define EOT (-1) 252 #define NA (-2) 253 254 static video_info_t bios_vmode[] = { 255 /* CGA */ 256 { M_B40x25, V_INFO_COLOR, 40, 25, 8, 8, 2, 1, 257 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 258 { M_C40x25, V_INFO_COLOR, 40, 25, 8, 8, 4, 1, 259 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 260 { M_B80x25, V_INFO_COLOR, 80, 25, 8, 8, 2, 1, 261 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 262 { M_C80x25, V_INFO_COLOR, 80, 25, 8, 8, 4, 1, 263 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 264 /* EGA */ 265 { M_ENH_B40x25, V_INFO_COLOR, 40, 25, 8, 14, 2, 1, 266 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 267 { M_ENH_C40x25, V_INFO_COLOR, 40, 25, 8, 14, 4, 1, 268 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 269 { M_ENH_B80x25, V_INFO_COLOR, 80, 25, 8, 14, 2, 1, 270 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 271 { M_ENH_C80x25, V_INFO_COLOR, 80, 25, 8, 14, 4, 1, 272 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 273 /* VGA */ 274 { M_VGA_C40x25, V_INFO_COLOR, 40, 25, 8, 16, 4, 1, 275 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 276 { M_VGA_M80x25, 0, 80, 25, 8, 16, 2, 1, 277 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 278 { M_VGA_C80x25, V_INFO_COLOR, 80, 25, 8, 16, 4, 1, 279 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 280 /* MDA */ 281 { M_EGAMONO80x25, 0, 80, 25, 8, 14, 2, 1, 282 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 283 /* EGA */ 284 { M_ENH_B80x43, 0, 80, 43, 8, 8, 2, 1, 285 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 286 { M_ENH_C80x43, V_INFO_COLOR, 80, 43, 8, 8, 4, 1, 287 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 288 /* VGA */ 289 { M_VGA_M80x30, 0, 80, 30, 8, 16, 2, 1, 290 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 291 { M_VGA_C80x30, V_INFO_COLOR, 80, 30, 8, 16, 4, 1, 292 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 293 { M_VGA_M80x50, 0, 80, 50, 8, 8, 2, 1, 294 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 295 { M_VGA_C80x50, V_INFO_COLOR, 80, 50, 8, 8, 4, 1, 296 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 297 { M_VGA_M80x60, 0, 80, 60, 8, 8, 2, 1, 298 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 299 { M_VGA_C80x60, V_INFO_COLOR, 80, 60, 8, 8, 4, 1, 300 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 301 302 #ifndef VGA_NO_MODE_CHANGE 303 304 #ifdef VGA_WIDTH90 305 { M_VGA_M90x25, 0, 90, 25, 8, 16, 2, 1, 306 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 307 { M_VGA_C90x25, V_INFO_COLOR, 90, 25, 8, 16, 4, 1, 308 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 309 { M_VGA_M90x30, 0, 90, 30, 8, 16, 2, 1, 310 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 311 { M_VGA_C90x30, V_INFO_COLOR, 90, 30, 8, 16, 4, 1, 312 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 313 { M_VGA_M90x43, 0, 90, 43, 8, 8, 2, 1, 314 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 315 { M_VGA_C90x43, V_INFO_COLOR, 90, 43, 8, 8, 4, 1, 316 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 317 { M_VGA_M90x50, 0, 90, 50, 8, 8, 2, 1, 318 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 319 { M_VGA_C90x50, V_INFO_COLOR, 90, 50, 8, 8, 4, 1, 320 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 321 { M_VGA_M90x60, 0, 90, 60, 8, 8, 2, 1, 322 MDA_BUF_BASE, MDA_BUF_SIZE, MDA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 323 { M_VGA_C90x60, V_INFO_COLOR, 90, 60, 8, 8, 4, 1, 324 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_TEXT }, 325 #endif /* VGA_WIDTH90 */ 326 327 /* CGA */ 328 { M_BG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 329 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 330 { M_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 2, 1, 331 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 332 { M_BG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 1, 1, 333 CGA_BUF_BASE, CGA_BUF_SIZE, CGA_BUF_SIZE, 0, 0, V_INFO_MM_CGA }, 334 /* EGA */ 335 { M_CG320_D, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 4, 4, 336 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 337 V_INFO_MM_PLANAR }, 338 { M_CG640_E, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 200, 8, 8, 4, 4, 339 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 340 V_INFO_MM_PLANAR }, 341 { M_EGAMONOAPA, V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 342 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, 64*1024, 0, 0 , 343 V_INFO_MM_PLANAR }, 344 { M_ENHMONOAPA2,V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 345 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 346 V_INFO_MM_PLANAR }, 347 { M_CG640x350, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 2, 2, 348 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 349 V_INFO_MM_PLANAR }, 350 { M_ENH_CG640, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 350, 8, 14, 4, 4, 351 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 352 V_INFO_MM_PLANAR }, 353 /* VGA */ 354 { M_BG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 355 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 356 V_INFO_MM_PLANAR }, 357 { M_CG640x480, V_INFO_COLOR | V_INFO_GRAPHICS, 640, 480, 8, 16, 4, 4, 358 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0 , 359 V_INFO_MM_PLANAR }, 360 { M_VGA_CG320, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 200, 8, 8, 8, 1, 361 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 362 V_INFO_MM_PACKED, 1 }, 363 { M_VGA_MODEX, V_INFO_COLOR | V_INFO_GRAPHICS, 320, 240, 8, 8, 8, 4, 364 GRAPHICS_BUF_BASE, GRAPHICS_BUF_SIZE, GRAPHICS_BUF_SIZE, 0, 0, 365 V_INFO_MM_VGAX, 1 }, 366 #endif /* VGA_NO_MODE_CHANGE */ 367 368 { EOT }, 369 }; 370 371 static int vga_init_done = FALSE; 372 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 373 static u_char *video_mode_ptr = NULL; 374 #endif 375 static u_char *mode_map[V_MODE_MAP_SIZE]; 376 static adp_state_t adpstate; 377 static adp_state_t adpstate2; 378 static int rows_offset = 1; 379 380 /* local macros and functions */ 381 #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 382 383 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 384 static void map_mode_table(u_char **, u_char *); 385 static int map_mode_num(int); 386 #endif 387 #ifndef VGA_NO_BIOS 388 static int map_bios_mode_num(int); 389 #endif 390 static u_char *get_mode_param(int); 391 static int verify_adapter(video_adapter_t *); 392 static void update_adapter_info(video_adapter_t *, video_info_t *); 393 static int probe_adapters(void); 394 static int set_line_length(video_adapter_t *, int); 395 static int set_display_start(video_adapter_t *, int, int); 396 397 #ifndef VGA_NO_MODE_CHANGE 398 #ifdef VGA_WIDTH90 399 static void set_width90(adp_state_t *); 400 #endif 401 #endif /* !VGA_NO_MODE_CHANGE */ 402 403 #ifndef VGA_NO_FONT_LOADING 404 #define PARAM_BUFSIZE 6 405 static void set_font_mode(video_adapter_t *, u_char *); 406 static void set_normal_mode(video_adapter_t *, u_char *); 407 #endif 408 409 #ifndef VGA_NO_MODE_CHANGE 410 static void filll_io(int, vm_offset_t, size_t); 411 static void planar_fill(video_adapter_t *, int); 412 static void packed_fill(video_adapter_t *, int); 413 static void direct_fill(video_adapter_t *, int); 414 #ifdef notyet 415 static void planar_fill_rect(video_adapter_t *, int, int, int, int, int); 416 static void packed_fill_rect(video_adapter_t *, int, int, int, int, int); 417 static void direct_fill_rect16(video_adapter_t *, int, int, int, int, int); 418 static void direct_fill_rect24(video_adapter_t *, int, int, int, int, int); 419 static void direct_fill_rect32(video_adapter_t *, int, int, int, int, int); 420 #endif /* notyet */ 421 #endif /* !VGA_NO_MODE_CHANGE */ 422 423 #define ISMAPPED(pa, width) \ 424 (((pa) <= (u_long)0x1000 - (width)) \ 425 || ((pa) >= ISA_HOLE_START && (pa) <= 0x100000 - (width))) 426 427 #define prologue(adp, flag, err) \ 428 if (!vga_init_done || !((adp)->va_flags & (flag))) \ 429 return (err) 430 431 /* a backdoor for the console driver */ 432 static int 433 vga_configure(int flags) 434 { 435 probe_adapters(); 436 if (probe_done(&biosadapter)) { 437 biosadapter.va_flags |= V_ADP_INITIALIZED; 438 if (!config_done(&biosadapter) && !(vid_register(&biosadapter) < 0)) 439 biosadapter.va_flags |= V_ADP_REGISTERED; 440 } 441 if (vga_sub_configure != NULL) 442 (*vga_sub_configure)(flags); 443 444 return 1; 445 } 446 447 /* local subroutines */ 448 449 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 450 /* construct the mode parameter map (accept 40x25, 80x25 and 80x30 modes) */ 451 static void 452 map_mode_table(u_char *map[], u_char *table) 453 { 454 int i, valid; 455 456 for(i = 0; i < V_MODE_MAP_SIZE; ++i) { 457 map[i] = table + i*V_MODE_PARAM_SIZE; 458 valid = 0; 459 if ((map[i][0] == 40 && map[i][1] == 24) || 460 (map[i][0] == 80 && (map[i][1] == 24 || map[i][1] == 29))) 461 valid++; 462 if (!valid) 463 map[i] = NULL; 464 } 465 } 466 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 467 468 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 469 /* map the non-standard video mode to a known mode number */ 470 static int 471 map_mode_num(int mode) 472 { 473 static struct { 474 int from; 475 int to; 476 } mode_map[] = { 477 { M_ENH_B80x43, M_ENH_B80x25 }, 478 { M_ENH_C80x43, M_ENH_C80x25 }, 479 { M_VGA_M80x30, M_VGA_M80x25 }, 480 { M_VGA_C80x30, M_VGA_C80x25 }, 481 { M_VGA_M80x50, M_VGA_M80x25 }, 482 { M_VGA_C80x50, M_VGA_C80x25 }, 483 { M_VGA_M80x60, M_VGA_M80x25 }, 484 { M_VGA_C80x60, M_VGA_C80x25 }, 485 #ifdef VGA_WIDTH90 486 { M_VGA_M90x25, M_VGA_M80x25 }, 487 { M_VGA_C90x25, M_VGA_C80x25 }, 488 { M_VGA_M90x30, M_VGA_M80x25 }, 489 { M_VGA_C90x30, M_VGA_C80x25 }, 490 { M_VGA_M90x43, M_ENH_B80x25 }, 491 { M_VGA_C90x43, M_ENH_C80x25 }, 492 { M_VGA_M90x50, M_VGA_M80x25 }, 493 { M_VGA_C90x50, M_VGA_C80x25 }, 494 { M_VGA_M90x60, M_VGA_M80x25 }, 495 { M_VGA_C90x60, M_VGA_C80x25 }, 496 #endif 497 { M_VGA_MODEX, M_VGA_CG320 }, 498 }; 499 int i; 500 501 for (i = 0; i < NELEM(mode_map); ++i) { 502 if (mode_map[i].from == mode) 503 return mode_map[i].to; 504 } 505 return mode; 506 } 507 #endif /* !VGA_NO_BIOS && !VGA_NO_MODE_CHANGE */ 508 509 #ifndef VGA_NO_BIOS 510 /* turn the BIOS video number into our video mode number */ 511 static int 512 map_bios_mode_num(int bios_mode) 513 { 514 static int vga_modes[20] = { 515 M_VGA_C40x25, M_VGA_C40x25, /* 0, 1 */ 516 M_VGA_C80x25, M_VGA_C80x25, /* 2, 3 */ 517 M_BG320, M_CG320, 518 M_BG640, 519 M_VGA_M80x25, /* 7 */ 520 8, 9, 10, 11, 12, 521 M_CG320_D, 522 M_CG640_E, 523 M_ENHMONOAPA2, 524 M_ENH_CG640, 525 M_BG640x480, M_CG640x480, 526 M_VGA_CG320, 527 }; 528 529 if (bios_mode < NELEM(vga_modes)) 530 return vga_modes[bios_mode]; 531 532 return M_VGA_C80x25; 533 } 534 #endif 535 536 /* look up a parameter table entry */ 537 static u_char * 538 get_mode_param(int mode) 539 { 540 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 541 if (mode >= V_MODE_MAP_SIZE) 542 mode = map_mode_num(mode); 543 #endif 544 if ((mode >= 0) && (mode < V_MODE_MAP_SIZE)) 545 return mode_map[mode]; 546 else 547 return NULL; 548 } 549 550 static int 551 verify_adapter(video_adapter_t *adp) 552 { 553 vm_offset_t buf; 554 u_int16_t v; 555 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 556 u_int32_t p; 557 #endif 558 559 buf = BIOS_PADDRTOVADDR(adp->va_window); 560 v = readw(buf); 561 writew(buf, 0xA55A); 562 if (readw(buf) != 0xA55A) 563 return ENXIO; 564 writew(buf, v); 565 566 outb(CRTC, 7); 567 if (inb(CRTC) != 7) 568 return ENXIO; 569 570 adp->va_flags |= V_ADP_STATELOAD | V_ADP_STATESAVE | V_ADP_PALETTE | 571 V_ADP_BORDER; 572 573 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 574 /* get the BIOS video mode pointer */ 575 p = *(u_int32_t *)BIOS_PADDRTOVADDR(0x4a8); 576 p = BIOS_SADDRTOLADDR(p); 577 if (ISMAPPED(p, sizeof(u_int32_t))) { 578 p = *(u_int32_t *)BIOS_PADDRTOVADDR(p); 579 p = BIOS_SADDRTOLADDR(p); 580 if (ISMAPPED(p, V_MODE_PARAM_SIZE)) 581 video_mode_ptr = (u_char *)BIOS_PADDRTOVADDR(p); 582 } 583 #endif 584 585 return 0; 586 } 587 588 static void 589 update_adapter_info(video_adapter_t *adp, video_info_t *info) 590 { 591 adp->va_flags |= V_ADP_COLOR; 592 adp->va_window = BIOS_PADDRTOVADDR(info->vi_window); 593 adp->va_window_size = info->vi_window_size; 594 adp->va_window_gran = info->vi_window_gran; 595 adp->va_window_orig = 0; 596 /* XXX */ 597 adp->va_buffer = info->vi_buffer; 598 adp->va_buffer_size = info->vi_buffer_size; 599 if (info->vi_mem_model == V_INFO_MM_VGAX) { 600 adp->va_line_width = info->vi_width/2; 601 } else if (info->vi_flags & V_INFO_GRAPHICS) { 602 switch (info->vi_depth/info->vi_planes) { 603 case 1: 604 adp->va_line_width = info->vi_width/8; 605 break; 606 case 2: 607 adp->va_line_width = info->vi_width/4; 608 break; 609 case 4: 610 adp->va_line_width = info->vi_width/2; 611 break; 612 case 8: 613 default: /* shouldn't happen */ 614 adp->va_line_width = info->vi_width; 615 break; 616 } 617 } else { 618 adp->va_line_width = info->vi_width; 619 } 620 adp->va_disp_start.x = 0; 621 adp->va_disp_start.y = 0; 622 bcopy(info, &adp->va_info, sizeof(adp->va_info)); 623 } 624 625 /* probe video adapters and return the number of detected adapters */ 626 static int 627 probe_adapters(void) 628 { 629 video_adapter_t *adp; 630 video_info_t info; 631 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 632 u_char *mp; 633 #endif 634 int i; 635 636 /* do this test only once */ 637 if (vga_init_done) 638 return 1; 639 vga_init_done = TRUE; 640 641 if (verify_adapter(&biosadapter) != 0) 642 return 0; 643 644 biosadapter.va_flags |= V_ADP_PROBED; 645 #ifndef VGA_NO_BIOS 646 biosadapter.va_initial_bios_mode = readb(BIOS_PADDRTOVADDR(0x449)); 647 biosadapter.va_mode = biosadapter.va_initial_mode = 648 map_bios_mode_num(biosadapter.va_initial_bios_mode); 649 #endif 650 651 /* 652 * Ensure a zero start address. This is mainly to recover after 653 * switching from pcvt using userconfig(). The registers are w/o 654 * for old hardware so it's too hard to relocate the active screen 655 * memory. 656 * This must be done before vga_save_state() for VGA. 657 */ 658 outb(CRTC, 12); 659 outb(CRTC + 1, 0); 660 outb(CRTC, 13); 661 outb(CRTC + 1, 0); 662 663 /* the video mode parameter table in VGA BIOS */ 664 /* NOTE: there can be only one VGA recognized by the video BIOS. 665 */ 666 adp = &biosadapter; 667 bzero(mode_map, sizeof(mode_map)); 668 vga_save_state(adp, &adpstate, sizeof(adpstate)); 669 for(i = 0; i < 16; i++) 670 adp->va_palette_regs[i] = adpstate.regs[35 + i]; 671 #if defined(VGA_NO_BIOS) || defined(VGA_NO_MODE_CHANGE) 672 mode_map[adp->va_initial_mode] = adpstate.regs; 673 rows_offset = 1; 674 #else /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 675 if (video_mode_ptr == NULL) { 676 mode_map[adp->va_initial_mode] = adpstate.regs; 677 rows_offset = 1; 678 } else { 679 /* discard modes that we are not familiar with */ 680 map_mode_table(mode_map, video_mode_ptr); 681 mp = get_mode_param(adp->va_initial_mode); 682 #if !defined(VGA_KEEP_POWERON_MODE) 683 if (mp != NULL) { 684 bcopy(mp, adpstate2.regs, sizeof(adpstate2.regs)); 685 rows_offset = adpstate.regs[1] + 1 - mp[1]; 686 } else 687 #endif 688 { 689 mode_map[adp->va_initial_mode] = adpstate.regs; 690 rows_offset = 1; 691 } 692 } 693 #endif /* VGA_NO_BIOS || VGA_NO_MODE_CHANGE */ 694 695 #ifndef VGA_NO_MODE_CHANGE 696 adp->va_flags |= V_ADP_MODECHANGE; 697 #endif 698 #ifndef VGA_NO_FONT_LOADING 699 adp->va_flags |= V_ADP_FONT; 700 #endif 701 702 /* XXX remove conflicting modes */ 703 for (i = 0; i < M_VGA_CG320; i++) { 704 if (vga_get_info(&biosadapter, i, &info)) 705 continue; 706 if ((info.vi_flags & V_INFO_COLOR) != V_ADP_COLOR) 707 mode_map[i] = NULL; 708 } 709 710 /* buffer address */ 711 vga_get_info(&biosadapter, biosadapter.va_initial_mode, &info); 712 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 713 update_adapter_info(&biosadapter, &info); 714 715 /* 716 * XXX: we should verify the following values for the primary adapter... 717 * crtc I/O port address: *(u_int16_t *)BIOS_PADDRTOVADDR(0x463); 718 * color/mono display: (*(u_int8_t *)BIOS_PADDRTOVADDR(0x487) & 0x02) 719 * ? 0 : V_ADP_COLOR; 720 * columns: *(u_int8_t *)BIOS_PADDRTOVADDR(0x44a); 721 * rows: *(u_int8_t *)BIOS_PADDRTOVADDR(0x484); 722 * font size: *(u_int8_t *)BIOS_PADDRTOVADDR(0x485); 723 * buffer size: *(u_int16_t *)BIOS_PADDRTOVADDR(0x44c); 724 */ 725 726 return 1; 727 } 728 729 /* set the scan line length in pixel */ 730 static int 731 set_line_length(video_adapter_t *adp, int pixel) 732 { 733 u_char *mp; 734 int ppw; /* pixels per word */ 735 int bpl; /* bytes per line */ 736 int count; 737 738 mp = get_mode_param(adp->va_mode); 739 if (mp == NULL) 740 return EINVAL; 741 742 switch (adp->va_info.vi_mem_model) { 743 case V_INFO_MM_PLANAR: 744 ppw = 16/(adp->va_info.vi_depth/adp->va_info.vi_planes); 745 count = (pixel + ppw - 1)/ppw/2; 746 bpl = ((pixel + ppw - 1)/ppw/2)*4; 747 break; 748 case V_INFO_MM_PACKED: 749 count = (pixel + 7)/8; 750 bpl = ((pixel + 7)/8)*8; 751 break; 752 case V_INFO_MM_TEXT: 753 count = (pixel + 7)/8; /* columns */ 754 bpl = (pixel + 7)/8; /* columns */ 755 break; 756 default: 757 return ENODEV; 758 } 759 760 if (mp[10 + 0x17] & 0x40) /* CRTC mode control reg */ 761 count *= 2; /* byte mode */ 762 outb(CRTC, 0x13); 763 outb(CRTC, count); 764 adp->va_line_width = bpl; 765 766 return 0; 767 } 768 769 static int 770 set_display_start(video_adapter_t *adp, int x, int y) 771 { 772 int off; /* byte offset (graphics mode)/word offset (text mode) */ 773 int poff; /* pixel offset */ 774 int roff; /* row offset */ 775 int ppb; /* pixels per byte */ 776 777 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) { 778 ppb = 8/(adp->va_info.vi_depth/adp->va_info.vi_planes); 779 off = y*adp->va_line_width + x/ppb; 780 roff = 0; 781 poff = x%ppb; 782 } else { 783 outb(TSIDX, 1); 784 if (inb(TSREG) & 1) 785 ppb = 9; 786 else 787 ppb = 8; 788 off = y/adp->va_info.vi_cheight*adp->va_line_width + x/ppb; 789 roff = y%adp->va_info.vi_cheight; 790 /* FIXME: is this correct? XXX */ 791 if (ppb == 8) 792 poff = x%ppb; 793 else 794 poff = (x + 8)%ppb; 795 } 796 797 /* start address */ 798 outb(CRTC, 0xc); /* high */ 799 outb(CRTC + 1, off >> 8); 800 outb(CRTC, 0xd); /* low */ 801 outb(CRTC + 1, off & 0xff); 802 803 /* horizontal pel pan */ 804 inb(CRTC + 6); 805 outb(ATC, 0x13 | 0x20); 806 outb(ATC, poff); 807 inb(CRTC + 6); 808 outb(ATC, 0x20); 809 810 /* preset raw scan */ 811 outb(CRTC, 8); 812 outb(CRTC + 1, roff); 813 814 adp->va_disp_start.x = x; 815 adp->va_disp_start.y = y; 816 return 0; 817 } 818 819 #ifndef VGA_NO_MODE_CHANGE 820 #if defined(__i386__) || defined(__x86_64__) /* XXX */ 821 static void 822 fill(int val, void *d, size_t size) 823 { 824 u_char *p = d; 825 826 while (size-- > 0) 827 *p++ = val; 828 } 829 #endif /* __i386__ || __x86_64__ */ 830 831 static void 832 filll_io(int val, vm_offset_t d, size_t size) 833 { 834 while (size-- > 0) { 835 writel(d, val); 836 d += sizeof(u_int32_t); 837 } 838 } 839 #endif /* !VGA_NO_MODE_CHANGE */ 840 841 /* entry points */ 842 843 #if 0 844 static int 845 vga_nop(void) 846 { 847 return 0; 848 } 849 #endif 850 851 static int 852 vga_error(void) 853 { 854 return ENODEV; 855 } 856 857 static int 858 vga_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 859 { 860 probe_adapters(); 861 if (unit != 0) 862 return ENXIO; 863 864 *adpp = &biosadapter; 865 866 return 0; 867 } 868 869 static int 870 vga_init(int unit, video_adapter_t *adp, int flags) 871 { 872 if ((unit != 0) || (adp == NULL) || !probe_done(adp)) 873 return ENXIO; 874 875 if (!init_done(adp)) { 876 /* nothing to do really... */ 877 adp->va_flags |= V_ADP_INITIALIZED; 878 } 879 880 if (!config_done(adp)) { 881 if (vid_register(adp) < 0) 882 return ENXIO; 883 adp->va_flags |= V_ADP_REGISTERED; 884 } 885 if (vga_sub_configure != NULL) 886 (*vga_sub_configure)(0); 887 888 return 0; 889 } 890 891 /* 892 * get_info(): 893 * Return the video_info structure of the requested video mode. 894 */ 895 static int 896 vga_get_info(video_adapter_t *adp, int mode, video_info_t *info) 897 { 898 int i; 899 900 if (!vga_init_done) 901 return ENXIO; 902 903 #ifndef VGA_NO_MODE_CHANGE 904 if (adp->va_flags & V_ADP_MODECHANGE) { 905 /* 906 * If the parameter table entry for this mode is not found, 907 * the mode is not supported... 908 */ 909 if (get_mode_param(mode) == NULL) 910 return EINVAL; 911 } else 912 #endif /* VGA_NO_MODE_CHANGE */ 913 { 914 /* 915 * Even if we don't support video mode switching on this adapter, 916 * the information on the initial (thus current) video mode 917 * should be made available. 918 */ 919 if (mode != adp->va_initial_mode) 920 return EINVAL; 921 } 922 923 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 924 if (bios_vmode[i].vi_mode == NA) 925 continue; 926 if (mode == bios_vmode[i].vi_mode) { 927 *info = bios_vmode[i]; 928 /* XXX */ 929 info->vi_buffer_size = info->vi_window_size*info->vi_planes; 930 return 0; 931 } 932 } 933 return EINVAL; 934 } 935 936 /* 937 * query_mode(): 938 * Find a video mode matching the requested parameters. 939 * Fields filled with 0 are considered "don't care" fields and 940 * match any modes. 941 */ 942 static int 943 vga_query_mode(video_adapter_t *adp, video_info_t *info) 944 { 945 int i; 946 947 if (!vga_init_done) 948 return ENXIO; 949 950 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 951 if (bios_vmode[i].vi_mode == NA) 952 continue; 953 954 if ((info->vi_width != 0) 955 && (info->vi_width != bios_vmode[i].vi_width)) 956 continue; 957 if ((info->vi_height != 0) 958 && (info->vi_height != bios_vmode[i].vi_height)) 959 continue; 960 if ((info->vi_cwidth != 0) 961 && (info->vi_cwidth != bios_vmode[i].vi_cwidth)) 962 continue; 963 if ((info->vi_cheight != 0) 964 && (info->vi_cheight != bios_vmode[i].vi_cheight)) 965 continue; 966 if ((info->vi_depth != 0) 967 && (info->vi_depth != bios_vmode[i].vi_depth)) 968 continue; 969 if ((info->vi_planes != 0) 970 && (info->vi_planes != bios_vmode[i].vi_planes)) 971 continue; 972 /* XXX: should check pixel format, memory model */ 973 if ((info->vi_flags != 0) 974 && (info->vi_flags != bios_vmode[i].vi_flags)) 975 continue; 976 977 /* verify if this mode is supported on this adapter */ 978 if (vga_get_info(adp, bios_vmode[i].vi_mode, info)) 979 continue; 980 return 0; 981 } 982 return ENODEV; 983 } 984 985 /* 986 * set_mode(): 987 * Change the video mode. 988 */ 989 990 #ifndef VGA_NO_MODE_CHANGE 991 #ifdef VGA_WIDTH90 992 static void 993 set_width90(adp_state_t *params) 994 { 995 /* 996 * Based on code submitted by Kelly Yancey (kbyanc@freedomnet.com) 997 * and alexv@sui.gda.itesm.mx. 998 */ 999 params->regs[5] |= 1; /* toggle 8 pixel wide fonts */ 1000 params->regs[10+0x0] = 0x6b; 1001 params->regs[10+0x1] = 0x59; 1002 params->regs[10+0x2] = 0x5a; 1003 params->regs[10+0x3] = 0x8e; 1004 params->regs[10+0x4] = 0x5e; 1005 params->regs[10+0x5] = 0x8a; 1006 params->regs[10+0x13] = 45; 1007 params->regs[35+0x13] = 0; 1008 } 1009 #endif /* VGA_WIDTH90 */ 1010 #endif /* !VGA_NO_MODE_CHANGE */ 1011 1012 static int 1013 vga_set_mode(video_adapter_t *adp, int mode) 1014 { 1015 #ifndef VGA_NO_MODE_CHANGE 1016 video_info_t info; 1017 adp_state_t params; 1018 1019 prologue(adp, V_ADP_MODECHANGE, ENODEV); 1020 1021 if (vga_get_info(adp, mode, &info)) 1022 return EINVAL; 1023 1024 lwkt_gettoken(&tty_token); 1025 1026 #if VGA_DEBUG > 1 1027 kprintf("vga_set_mode(): setting mode %d\n", mode); 1028 #endif 1029 1030 params.sig = V_STATE_SIG; 1031 bcopy(get_mode_param(mode), params.regs, sizeof(params.regs)); 1032 1033 switch (mode) { 1034 #ifdef VGA_WIDTH90 1035 case M_VGA_C90x60: case M_VGA_M90x60: 1036 set_width90(¶ms); 1037 /* FALLTHROUGH */ 1038 #endif 1039 case M_VGA_C80x60: case M_VGA_M80x60: 1040 params.regs[2] = 0x08; 1041 params.regs[19] = 0x47; 1042 goto special_480l; 1043 1044 #ifdef VGA_WIDTH90 1045 case M_VGA_C90x30: case M_VGA_M90x30: 1046 set_width90(¶ms); 1047 /* FALLTHROUGH */ 1048 #endif 1049 case M_VGA_C80x30: case M_VGA_M80x30: 1050 params.regs[19] = 0x4f; 1051 special_480l: 1052 params.regs[9] |= 0xc0; 1053 params.regs[16] = 0x08; 1054 params.regs[17] = 0x3e; 1055 params.regs[26] = 0xea; 1056 params.regs[28] = 0xdf; 1057 params.regs[31] = 0xe7; 1058 params.regs[32] = 0x04; 1059 goto setup_mode; 1060 1061 #ifdef VGA_WIDTH90 1062 case M_VGA_C90x43: case M_VGA_M90x43: 1063 set_width90(¶ms); 1064 /* FALLTHROUGH */ 1065 #endif 1066 case M_ENH_C80x43: case M_ENH_B80x43: 1067 params.regs[28] = 87; 1068 goto special_80x50; 1069 1070 #ifdef VGA_WIDTH90 1071 case M_VGA_C90x50: case M_VGA_M90x50: 1072 set_width90(¶ms); 1073 /* FALLTHROUGH */ 1074 #endif 1075 case M_VGA_C80x50: case M_VGA_M80x50: 1076 special_80x50: 1077 params.regs[2] = 8; 1078 params.regs[19] = 7; 1079 goto setup_mode; 1080 1081 #ifdef VGA_WIDTH90 1082 case M_VGA_C90x25: case M_VGA_M90x25: 1083 set_width90(¶ms); 1084 /* FALLTHROUGH */ 1085 #endif 1086 case M_VGA_C40x25: case M_VGA_C80x25: 1087 case M_VGA_M80x25: 1088 case M_B40x25: case M_C40x25: 1089 case M_B80x25: case M_C80x25: 1090 case M_ENH_B40x25: case M_ENH_C40x25: 1091 case M_ENH_B80x25: case M_ENH_C80x25: 1092 case M_EGAMONO80x25: 1093 1094 setup_mode: 1095 vga_load_state(adp, ¶ms); 1096 break; 1097 1098 case M_VGA_MODEX: 1099 /* "unchain" the VGA mode */ 1100 params.regs[5-1+0x04] &= 0xf7; 1101 params.regs[5-1+0x04] |= 0x04; 1102 /* turn off doubleword mode */ 1103 params.regs[10+0x14] &= 0xbf; 1104 /* turn off word addressing */ 1105 params.regs[10+0x17] |= 0x40; 1106 /* set logical screen width */ 1107 params.regs[10+0x13] = 80; 1108 /* set 240 lines */ 1109 params.regs[10+0x11] = 0x2c; 1110 params.regs[10+0x06] = 0x0d; 1111 params.regs[10+0x07] = 0x3e; 1112 params.regs[10+0x10] = 0xea; 1113 params.regs[10+0x11] = 0xac; 1114 params.regs[10+0x12] = 0xdf; 1115 params.regs[10+0x15] = 0xe7; 1116 params.regs[10+0x16] = 0x06; 1117 /* set vertical sync polarity to reflect aspect ratio */ 1118 params.regs[9] = 0xe3; 1119 goto setup_grmode; 1120 1121 case M_BG320: case M_CG320: case M_BG640: 1122 case M_CG320_D: case M_CG640_E: 1123 case M_CG640x350: case M_ENH_CG640: 1124 case M_BG640x480: case M_CG640x480: case M_VGA_CG320: 1125 1126 setup_grmode: 1127 vga_load_state(adp, ¶ms); 1128 break; 1129 1130 default: 1131 lwkt_reltoken(&tty_token); 1132 return EINVAL; 1133 } 1134 1135 adp->va_mode = mode; 1136 info.vi_flags &= ~V_INFO_LINEAR; /* XXX */ 1137 update_adapter_info(adp, &info); 1138 1139 /* move hardware cursor out of the way */ 1140 (*vidsw[adp->va_index]->set_hw_cursor)(adp, -1, -1); 1141 1142 lwkt_reltoken(&tty_token); 1143 return 0; 1144 #else /* VGA_NO_MODE_CHANGE */ 1145 lwkt_reltoken(&tty_token); 1146 return ENODEV; 1147 #endif /* VGA_NO_MODE_CHANGE */ 1148 } 1149 1150 #ifndef VGA_NO_FONT_LOADING 1151 1152 static void 1153 set_font_mode(video_adapter_t *adp, u_char *buf) 1154 { 1155 crit_enter(); 1156 1157 /* save register values */ 1158 outb(TSIDX, 0x02); buf[0] = inb(TSREG); 1159 outb(TSIDX, 0x04); buf[1] = inb(TSREG); 1160 outb(GDCIDX, 0x04); buf[2] = inb(GDCREG); 1161 outb(GDCIDX, 0x05); buf[3] = inb(GDCREG); 1162 outb(GDCIDX, 0x06); buf[4] = inb(GDCREG); 1163 inb(CRTC + 6); 1164 outb(ATC, 0x10); buf[5] = inb(ATC + 1); 1165 1166 /* setup vga for loading fonts */ 1167 inb(CRTC + 6); /* reset flip-flop */ 1168 outb(ATC, 0x10); outb(ATC, buf[5] & ~0x01); 1169 inb(CRTC + 6); /* reset flip-flop */ 1170 outb(ATC, 0x20); /* enable palette */ 1171 1172 #ifdef VGA_ALT_SEQACCESS 1173 outw(TSIDX, 0x0100); 1174 #endif 1175 outw(TSIDX, 0x0402); 1176 outw(TSIDX, 0x0704); 1177 #ifdef VGA_ALT_SEQACCESS 1178 outw(TSIDX, 0x0300); 1179 #endif 1180 outw(GDCIDX, 0x0204); 1181 outw(GDCIDX, 0x0005); 1182 outw(GDCIDX, 0x0406); /* addr = a0000, 64kb */ 1183 1184 crit_exit(); 1185 } 1186 1187 static void 1188 set_normal_mode(video_adapter_t *adp, u_char *buf) 1189 { 1190 crit_enter(); 1191 1192 /* setup vga for normal operation mode again */ 1193 inb(CRTC + 6); /* reset flip-flop */ 1194 outb(ATC, 0x10); outb(ATC, buf[5]); 1195 inb(CRTC + 6); /* reset flip-flop */ 1196 outb(ATC, 0x20); /* enable palette */ 1197 1198 #ifdef VGA_ALT_SEQACCESS 1199 outw(TSIDX, 0x0100); 1200 #endif 1201 outw(TSIDX, 0x0002 | (buf[0] << 8)); 1202 outw(TSIDX, 0x0004 | (buf[1] << 8)); 1203 #ifdef VGA_ALT_SEQACCESS 1204 outw(TSIDX, 0x0300); 1205 #endif 1206 outw(GDCIDX, 0x0004 | (buf[2] << 8)); 1207 outw(GDCIDX, 0x0005 | (buf[3] << 8)); 1208 outw(GDCIDX, 0x0006 | (((buf[4] & 0x03) | 0x0c)<<8)); 1209 1210 crit_exit(); 1211 } 1212 1213 #endif /* VGA_NO_FONT_LOADING */ 1214 1215 /* 1216 * save_font(): 1217 * Read the font data in the requested font page from the video adapter. 1218 */ 1219 static int 1220 vga_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1221 int ch, int count) 1222 { 1223 #ifndef VGA_NO_FONT_LOADING 1224 u_char buf[PARAM_BUFSIZE]; 1225 vm_offset_t segment; 1226 int c; 1227 #ifdef VGA_ALT_SEQACCESS 1228 u_char val = 0; 1229 #endif 1230 1231 prologue(adp, V_ADP_FONT, ENODEV); 1232 1233 if (fontsize < 14) { 1234 /* FONT_8 */ 1235 fontsize = 8; 1236 } else if (fontsize >= 32) { 1237 fontsize = 32; 1238 } else if (fontsize >= 16) { 1239 /* FONT_16 */ 1240 fontsize = 16; 1241 } else { 1242 /* FONT_14 */ 1243 fontsize = 14; 1244 } 1245 1246 if (page < 0 || page >= 8) 1247 return EINVAL; 1248 segment = FONT_BUF + 0x4000*page; 1249 if (page > 3) 1250 segment -= 0xe000; 1251 1252 #ifdef VGA_ALT_SEQACCESS 1253 crit_enter(); 1254 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1255 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1256 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1257 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1258 crit_exit(); 1259 #endif 1260 1261 set_font_mode(adp, buf); 1262 if (fontsize == 32) { 1263 bcopy_fromio((uintptr_t)segment + ch*32, data, fontsize*count); 1264 } else { 1265 for (c = ch; count > 0; ++c, --count) { 1266 bcopy_fromio((uintptr_t)segment + c*32, data, fontsize); 1267 data += fontsize; 1268 } 1269 } 1270 set_normal_mode(adp, buf); 1271 1272 #ifdef VGA_ALT_SEQACCESS 1273 crit_enter(); 1274 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1275 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1276 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1277 crit_exit(); 1278 #endif 1279 1280 return 0; 1281 #else /* VGA_NO_FONT_LOADING */ 1282 return ENODEV; 1283 #endif /* VGA_NO_FONT_LOADING */ 1284 } 1285 1286 /* 1287 * load_font(): 1288 * Set the font data in the requested font page. 1289 * NOTE: it appears that some recent video adapters do not support 1290 * the font page other than 0... XXX 1291 */ 1292 static int 1293 vga_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data, 1294 int ch, int count) 1295 { 1296 #ifndef VGA_NO_FONT_LOADING 1297 u_char buf[PARAM_BUFSIZE]; 1298 vm_offset_t segment; 1299 int c; 1300 #ifdef VGA_ALT_SEQACCESS 1301 u_char val = 0; 1302 #endif 1303 1304 prologue(adp, V_ADP_FONT, ENODEV); 1305 1306 if (fontsize < 14) { 1307 /* FONT_8 */ 1308 fontsize = 8; 1309 } else if (fontsize >= 32) { 1310 fontsize = 32; 1311 } else if (fontsize >= 16) { 1312 /* FONT_16 */ 1313 fontsize = 16; 1314 } else { 1315 /* FONT_14 */ 1316 fontsize = 14; 1317 } 1318 1319 if (page < 0 || page >= 8) 1320 return EINVAL; 1321 segment = FONT_BUF + 0x4000*page; 1322 if (page > 3) 1323 segment -= 0xe000; 1324 1325 #ifdef VGA_ALT_SEQACCESS 1326 crit_enter(); 1327 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1328 outb(TSIDX, 0x01); val = inb(TSREG); /* disable screen */ 1329 outb(TSIDX, 0x01); outb(TSREG, val | 0x20); 1330 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1331 crit_exit(); 1332 #endif 1333 1334 set_font_mode(adp, buf); 1335 if (fontsize == 32) { 1336 bcopy_toio(data, (uintptr_t)segment + ch*32, fontsize*count); 1337 } else { 1338 for (c = ch; count > 0; ++c, --count) { 1339 bcopy_toio(data, (uintptr_t)segment + c*32, fontsize); 1340 data += fontsize; 1341 } 1342 } 1343 set_normal_mode(adp, buf); 1344 1345 #ifdef VGA_ALT_SEQACCESS 1346 crit_enter(); 1347 outb(TSIDX, 0x00); outb(TSREG, 0x01); 1348 outb(TSIDX, 0x01); outb(TSREG, val & 0xdf); /* enable screen */ 1349 outb(TSIDX, 0x00); outb(TSREG, 0x03); 1350 crit_exit(); 1351 #endif 1352 1353 return 0; 1354 #else /* VGA_NO_FONT_LOADING */ 1355 return ENODEV; 1356 #endif /* VGA_NO_FONT_LOADING */ 1357 } 1358 1359 /* 1360 * show_font(): 1361 * Activate the requested font page. 1362 * NOTE: it appears that some recent video adapters do not support 1363 * the font page other than 0... XXX 1364 */ 1365 static int 1366 vga_show_font(video_adapter_t *adp, int page) 1367 { 1368 #ifndef VGA_NO_FONT_LOADING 1369 static u_char cg[] = { 0x00, 0x05, 0x0a, 0x0f, 0x30, 0x35, 0x3a, 0x3f }; 1370 1371 prologue(adp, V_ADP_FONT, ENODEV); 1372 if (page < 0 || page >= 8) 1373 return EINVAL; 1374 1375 crit_enter(); 1376 outb(TSIDX, 0x03); outb(TSREG, cg[page]); 1377 crit_exit(); 1378 1379 return 0; 1380 #else /* VGA_NO_FONT_LOADING */ 1381 return ENODEV; 1382 #endif /* VGA_NO_FONT_LOADING */ 1383 } 1384 1385 /* 1386 * save_palette(): 1387 * Read DAC values. The values have expressed in 8 bits. 1388 * 1389 * VGA 1390 */ 1391 static int 1392 vga_save_palette(video_adapter_t *adp, u_char *palette) 1393 { 1394 int i; 1395 1396 prologue(adp, V_ADP_PALETTE, ENODEV); 1397 1398 /* 1399 * We store 8 bit values in the palette buffer, while the standard 1400 * VGA has 6 bit DAC . 1401 */ 1402 outb(PALRADR, 0x00); 1403 for (i = 0; i < 256*3; ++i) 1404 palette[i] = inb(PALDATA) << 2; 1405 inb(CRTC + 6); /* reset flip/flop */ 1406 return 0; 1407 } 1408 1409 static int 1410 vga_save_palette2(video_adapter_t *adp, int base, int count, 1411 u_char *r, u_char *g, u_char *b) 1412 { 1413 int i; 1414 1415 prologue(adp, V_ADP_PALETTE, ENODEV); 1416 1417 outb(PALRADR, base); 1418 for (i = 0; i < count; ++i) { 1419 r[i] = inb(PALDATA) << 2; 1420 g[i] = inb(PALDATA) << 2; 1421 b[i] = inb(PALDATA) << 2; 1422 } 1423 inb(CRTC + 6); /* reset flip/flop */ 1424 return 0; 1425 } 1426 1427 /* 1428 * load_palette(): 1429 * Set DAC values. 1430 * 1431 * VGA 1432 */ 1433 static int 1434 vga_load_palette(video_adapter_t *adp, const u_char *palette) 1435 { 1436 int i; 1437 1438 prologue(adp, V_ADP_PALETTE, ENODEV); 1439 1440 outb(PIXMASK, 0xff); /* no pixelmask */ 1441 outb(PALWADR, 0x00); 1442 for (i = 0; i < 256*3; ++i) 1443 outb(PALDATA, palette[i] >> 2); 1444 inb(CRTC + 6); /* reset flip/flop */ 1445 outb(ATC, 0x20); /* enable palette */ 1446 return 0; 1447 } 1448 1449 static int 1450 vga_load_palette2(video_adapter_t *adp, int base, int count, 1451 u_char *r, u_char *g, u_char *b) 1452 { 1453 int i; 1454 1455 prologue(adp, V_ADP_PALETTE, ENODEV); 1456 1457 outb(PIXMASK, 0xff); /* no pixelmask */ 1458 outb(PALWADR, base); 1459 for (i = 0; i < count; ++i) { 1460 outb(PALDATA, r[i] >> 2); 1461 outb(PALDATA, g[i] >> 2); 1462 outb(PALDATA, b[i] >> 2); 1463 } 1464 inb(CRTC + 6); /* reset flip/flop */ 1465 outb(ATC, 0x20); /* enable palette */ 1466 return 0; 1467 } 1468 1469 /* 1470 * set_border(): 1471 * Change the border color. 1472 */ 1473 static int 1474 vga_set_border(video_adapter_t *adp, int color) 1475 { 1476 prologue(adp, V_ADP_BORDER, ENODEV); 1477 1478 inb(CRTC + 6); /* reset flip-flop */ 1479 outb(ATC, 0x31); outb(ATC, color & 0xff); 1480 1481 return 0; 1482 } 1483 1484 /* 1485 * save_state(): 1486 * Read video register values. 1487 * NOTE: this function only reads the standard VGA registers. 1488 * any extra/extended registers of SVGA adapters are not saved. 1489 */ 1490 static int 1491 vga_save_state(video_adapter_t *adp, void *p, size_t size) 1492 { 1493 video_info_t info; 1494 u_char *buf; 1495 int crtc_addr; 1496 int i, j; 1497 1498 if (size == 0) { 1499 /* return the required buffer size */ 1500 prologue(adp, V_ADP_STATESAVE, 0); 1501 return sizeof(adp_state_t); 1502 } else { 1503 prologue(adp, V_ADP_STATESAVE, ENODEV); 1504 if (size < sizeof(adp_state_t)) 1505 return EINVAL; 1506 } 1507 ((adp_state_t *)p)->sig = V_STATE_SIG; 1508 buf = ((adp_state_t *)p)->regs; 1509 bzero(buf, V_MODE_PARAM_SIZE); 1510 crtc_addr = CRTC; 1511 1512 crit_enter(); 1513 1514 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 1515 for (i = 0, j = 5; i < 4; i++) { 1516 outb(TSIDX, i + 1); 1517 buf[j++] = inb(TSREG); 1518 } 1519 buf[9] = inb(MISC + 10); /* dot-clock */ 1520 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 1521 1522 for (i = 0, j = 10; i < 25; i++) { /* crtc */ 1523 outb(crtc_addr, i); 1524 buf[j++] = inb(crtc_addr + 1); 1525 } 1526 for (i = 0, j = 35; i < 20; i++) { /* attribute ctrl */ 1527 inb(crtc_addr + 6); /* reset flip-flop */ 1528 outb(ATC, i); 1529 buf[j++] = inb(ATC + 1); 1530 } 1531 for (i = 0, j = 55; i < 9; i++) { /* graph data ctrl */ 1532 outb(GDCIDX, i); 1533 buf[j++] = inb(GDCREG); 1534 } 1535 inb(crtc_addr + 6); /* reset flip-flop */ 1536 outb(ATC, 0x20); /* enable palette */ 1537 1538 crit_exit(); 1539 1540 #if 1 1541 if (vga_get_info(adp, adp->va_mode, &info) == 0) { 1542 if (info.vi_flags & V_INFO_GRAPHICS) { 1543 buf[0] = info.vi_width/info.vi_cwidth; /* COLS */ 1544 buf[1] = info.vi_height/info.vi_cheight - 1; /* ROWS */ 1545 } else { 1546 buf[0] = info.vi_width; /* COLS */ 1547 buf[1] = info.vi_height - 1; /* ROWS */ 1548 } 1549 buf[2] = info.vi_cheight; /* POINTS */ 1550 } else { 1551 /* XXX: shouldn't be happening... */ 1552 kprintf("vga%d: %s: failed to obtain mode info. (vga_save_state())\n", 1553 adp->va_unit, adp->va_name); 1554 } 1555 #else 1556 buf[0] = readb(BIOS_PADDRTOVADDR(0x44a)); /* COLS */ 1557 buf[1] = readb(BIOS_PADDRTOVADDR(0x484)); /* ROWS */ 1558 buf[2] = readb(BIOS_PADDRTOVADDR(0x485)); /* POINTS */ 1559 buf[3] = readb(BIOS_PADDRTOVADDR(0x44c)); 1560 buf[4] = readb(BIOS_PADDRTOVADDR(0x44d)); 1561 #endif 1562 1563 return 0; 1564 } 1565 1566 /* 1567 * load_state(): 1568 * Set video registers at once. 1569 * NOTE: this function only updates the standard VGA registers. 1570 * any extra/extended registers of SVGA adapters are not changed. 1571 */ 1572 static int 1573 vga_load_state(video_adapter_t *adp, void *p) 1574 { 1575 u_char *buf; 1576 int crtc_addr; 1577 int i; 1578 1579 prologue(adp, V_ADP_STATELOAD, ENODEV); 1580 if (((adp_state_t *)p)->sig != V_STATE_SIG) 1581 return EINVAL; 1582 1583 buf = ((adp_state_t *)p)->regs; 1584 crtc_addr = CRTC; 1585 1586 #if VGA_DEBUG > 1 1587 hexdump(buf, V_MODE_PARAM_SIZE, NULL, HD_OMIT_CHARS | HD_OMIT_COUNT); 1588 #endif 1589 1590 crit_enter(); 1591 1592 outb(TSIDX, 0x00); outb(TSREG, 0x01); /* stop sequencer */ 1593 for (i = 0; i < 4; ++i) { /* program sequencer */ 1594 outb(TSIDX, i + 1); 1595 outb(TSREG, buf[i + 5]); 1596 } 1597 outb(MISC, buf[9]); /* set dot-clock */ 1598 outb(TSIDX, 0x00); outb(TSREG, 0x03); /* start sequencer */ 1599 outb(crtc_addr, 0x11); 1600 outb(crtc_addr + 1, inb(crtc_addr + 1) & 0x7F); 1601 for (i = 0; i < 25; ++i) { /* program crtc */ 1602 outb(crtc_addr, i); 1603 outb(crtc_addr + 1, buf[i + 10]); 1604 } 1605 inb(crtc_addr+6); /* reset flip-flop */ 1606 for (i = 0; i < 20; ++i) { /* program attribute ctrl */ 1607 outb(ATC, i); 1608 outb(ATC, buf[i + 35]); 1609 } 1610 for (i = 0; i < 9; ++i) { /* program graph data ctrl */ 1611 outb(GDCIDX, i); 1612 outb(GDCREG, buf[i + 55]); 1613 } 1614 inb(crtc_addr + 6); /* reset flip-flop */ 1615 outb(ATC, 0x20); /* enable palette */ 1616 1617 #if 0 /* XXX a temporary workaround for kernel panic */ 1618 #ifndef VGA_NO_BIOS 1619 if (adp->va_unit == V_ADP_PRIMARY) { 1620 writeb(BIOS_PADDRTOVADDR(0x44a), buf[0]); /* COLS */ 1621 writeb(BIOS_PADDRTOVADDR(0x484), buf[1] + rows_offset - 1); /* ROWS */ 1622 writeb(BIOS_PADDRTOVADDR(0x485), buf[2]); /* POINTS */ 1623 #if 0 1624 writeb(BIOS_PADDRTOVADDR(0x44c), buf[3]); 1625 writeb(BIOS_PADDRTOVADDR(0x44d), buf[4]); 1626 #endif 1627 } 1628 #endif /* VGA_NO_BIOS */ 1629 #endif /* XXX */ 1630 1631 crit_exit(); 1632 return 0; 1633 } 1634 1635 /* 1636 * set_origin(): 1637 * Change the origin (window mapping) of the banked frame buffer. 1638 */ 1639 static int 1640 vga_set_origin(video_adapter_t *adp, off_t offset) 1641 { 1642 /* 1643 * The standard video modes do not require window mapping; 1644 * always return error. 1645 */ 1646 return ENODEV; 1647 } 1648 1649 /* 1650 * read_hw_cursor(): 1651 * Read the position of the hardware text cursor. 1652 */ 1653 static int 1654 vga_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 1655 { 1656 u_int16_t off; 1657 1658 if (!vga_init_done) 1659 return ENXIO; 1660 1661 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 1662 return ENODEV; 1663 1664 crit_enter(); 1665 outb(CRTC, 14); 1666 off = inb(CRTC + 1); 1667 outb(CRTC, 15); 1668 off = (off << 8) | inb(CRTC + 1); 1669 crit_exit(); 1670 1671 *row = off / adp->va_info.vi_width; 1672 *col = off % adp->va_info.vi_width; 1673 1674 return 0; 1675 } 1676 1677 /* 1678 * set_hw_cursor(): 1679 * Move the hardware text cursor. If col and row are both -1, 1680 * the cursor won't be shown. 1681 */ 1682 static int 1683 vga_set_hw_cursor(video_adapter_t *adp, int col, int row) 1684 { 1685 u_int16_t off; 1686 1687 if (!vga_init_done) 1688 return ENXIO; 1689 1690 if ((col == -1) && (row == -1)) { 1691 off = -1; 1692 } else { 1693 if (adp->va_info.vi_flags & V_INFO_GRAPHICS) 1694 return ENODEV; 1695 off = row*adp->va_info.vi_width + col; 1696 } 1697 1698 crit_enter(); 1699 outb(CRTC, 14); 1700 outb(CRTC + 1, off >> 8); 1701 outb(CRTC, 15); 1702 outb(CRTC + 1, off & 0x00ff); 1703 crit_exit(); 1704 1705 return 0; 1706 } 1707 1708 /* 1709 * set_hw_cursor_shape(): 1710 * Change the shape of the hardware text cursor. If the height is 1711 * zero or negative, the cursor won't be shown. 1712 */ 1713 static int 1714 vga_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 1715 int celsize, int blink) 1716 { 1717 if (!vga_init_done) 1718 return ENXIO; 1719 1720 crit_enter(); 1721 if (height <= 0) { 1722 /* make the cursor invisible */ 1723 outb(CRTC, 10); 1724 outb(CRTC + 1, 32); 1725 outb(CRTC, 11); 1726 outb(CRTC + 1, 0); 1727 } else { 1728 outb(CRTC, 10); 1729 outb(CRTC + 1, celsize - base - height); 1730 outb(CRTC, 11); 1731 outb(CRTC + 1, celsize - base - 1); 1732 } 1733 crit_exit(); 1734 1735 return 0; 1736 } 1737 1738 /* 1739 * blank_display() 1740 * Put the display in power save/power off mode. 1741 */ 1742 static int 1743 vga_blank_display(video_adapter_t *adp, int mode) 1744 { 1745 u_char val; 1746 1747 crit_enter(); 1748 switch (mode) { 1749 case V_DISPLAY_SUSPEND: 1750 case V_DISPLAY_STAND_BY: 1751 outb(TSIDX, 0x01); 1752 val = inb(TSREG); 1753 outb(TSIDX, 0x01); 1754 outb(TSREG, val | 0x20); 1755 outb(CRTC, 0x17); 1756 val = inb(CRTC + 1); 1757 outb(CRTC + 1, val & ~0x80); 1758 break; 1759 case V_DISPLAY_OFF: 1760 outb(TSIDX, 0x01); 1761 val = inb(TSREG); 1762 outb(TSIDX, 0x01); 1763 outb(TSREG, val | 0x20); 1764 break; 1765 case V_DISPLAY_ON: 1766 outb(TSIDX, 0x01); 1767 val = inb(TSREG); 1768 outb(TSIDX, 0x01); 1769 outb(TSREG, val & 0xDF); 1770 outb(CRTC, 0x17); 1771 val = inb(CRTC + 1); 1772 outb(CRTC + 1, val | 0x80); 1773 break; 1774 } 1775 crit_exit(); 1776 1777 return 0; 1778 } 1779 1780 /* 1781 * mmap(): 1782 * Mmap frame buffer. 1783 */ 1784 static int 1785 vga_mmap_buf(video_adapter_t *adp, vm_offset_t offset, int prot) 1786 { 1787 if (adp->va_info.vi_flags & V_INFO_LINEAR) 1788 return -1; 1789 1790 #if VGA_DEBUG > 0 1791 kprintf("vga_mmap_buf(): window:0x%x, offset:%p\n", 1792 adp->va_info.vi_window, (void *)offset); 1793 #endif 1794 1795 /* XXX: is this correct? */ 1796 if (offset > adp->va_window_size - PAGE_SIZE) 1797 return -1; 1798 1799 #if defined(__i386__) 1800 return i386_btop(adp->va_info.vi_window + offset); 1801 #elif defined(__x86_64__) 1802 return x86_64_btop(adp->va_info.vi_window + offset); 1803 #else 1804 #error "vga_mmap_buf needs to return something" 1805 #endif 1806 } 1807 1808 #ifndef VGA_NO_MODE_CHANGE 1809 1810 static void 1811 planar_fill(video_adapter_t *adp, int val) 1812 { 1813 int length; 1814 int at; /* position in the frame buffer */ 1815 int l; 1816 1817 lwkt_gettoken(&tty_token); 1818 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 1819 outw(GDCIDX, 0x0003); /* data rotate/function select */ 1820 outw(GDCIDX, 0x0f01); /* set/reset enable */ 1821 outw(GDCIDX, 0xff08); /* bit mask */ 1822 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 1823 at = 0; 1824 length = adp->va_line_width*adp->va_info.vi_height; 1825 while (length > 0) { 1826 l = imin(length, adp->va_window_size); 1827 (*vidsw[adp->va_index]->set_win_org)(adp, at); 1828 bzero_io(adp->va_window, l); 1829 length -= l; 1830 at += l; 1831 } 1832 outw(GDCIDX, 0x0000); /* set/reset */ 1833 outw(GDCIDX, 0x0001); /* set/reset enable */ 1834 lwkt_reltoken(&tty_token); 1835 } 1836 1837 static void 1838 packed_fill(video_adapter_t *adp, int val) 1839 { 1840 int length; 1841 int at; /* position in the frame buffer */ 1842 int l; 1843 1844 lwkt_gettoken(&tty_token); 1845 at = 0; 1846 length = adp->va_line_width*adp->va_info.vi_height; 1847 while (length > 0) { 1848 l = imin(length, adp->va_window_size); 1849 (*vidsw[adp->va_index]->set_win_org)(adp, at); 1850 fill_io(val, adp->va_window, l); 1851 length -= l; 1852 at += l; 1853 } 1854 lwkt_reltoken(&tty_token); 1855 } 1856 1857 static void 1858 direct_fill(video_adapter_t *adp, int val) 1859 { 1860 int length; 1861 int at; /* position in the frame buffer */ 1862 int l; 1863 1864 lwkt_gettoken(&tty_token); 1865 at = 0; 1866 length = adp->va_line_width*adp->va_info.vi_height; 1867 while (length > 0) { 1868 l = imin(length, adp->va_window_size); 1869 (*vidsw[adp->va_index]->set_win_org)(adp, at); 1870 switch (adp->va_info.vi_pixel_size) { 1871 case sizeof(u_int16_t): 1872 fillw_io(val, adp->va_window, l/sizeof(u_int16_t)); 1873 break; 1874 case 3: 1875 /* FIXME */ 1876 break; 1877 case sizeof(u_int32_t): 1878 filll_io(val, adp->va_window, l/sizeof(u_int32_t)); 1879 break; 1880 } 1881 length -= l; 1882 at += l; 1883 } 1884 lwkt_reltoken(&tty_token); 1885 } 1886 1887 static int 1888 vga_clear(video_adapter_t *adp) 1889 { 1890 switch (adp->va_info.vi_mem_model) { 1891 case V_INFO_MM_TEXT: 1892 /* do nothing? XXX */ 1893 break; 1894 case V_INFO_MM_PLANAR: 1895 planar_fill(adp, 0); 1896 break; 1897 case V_INFO_MM_PACKED: 1898 packed_fill(adp, 0); 1899 break; 1900 case V_INFO_MM_DIRECT: 1901 direct_fill(adp, 0); 1902 break; 1903 } 1904 return 0; 1905 } 1906 1907 #ifdef notyet 1908 static void 1909 planar_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 1910 { 1911 int banksize; 1912 int bank; 1913 int pos; 1914 int offset; /* offset within window */ 1915 int bx; 1916 int l; 1917 1918 lwkt_gettoken(&tty_token); 1919 outw(GDCIDX, 0x0005); /* read mode 0, write mode 0 */ 1920 outw(GDCIDX, 0x0003); /* data rotate/function select */ 1921 outw(GDCIDX, 0x0f01); /* set/reset enable */ 1922 outw(GDCIDX, 0xff08); /* bit mask */ 1923 outw(GDCIDX, (val << 8) | 0x00); /* set/reset */ 1924 1925 banksize = adp->va_window_size; 1926 bank = -1; 1927 while (cy > 0) { 1928 pos = adp->va_line_width*y + x/8; 1929 if (bank != pos/banksize) { 1930 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 1931 bank = pos/banksize; 1932 } 1933 offset = pos%banksize; 1934 bx = (x + cx)/8 - x/8; 1935 if (x % 8) { 1936 outw(GDCIDX, ((0xff00 >> (x % 8)) & 0xff00) | 0x08); 1937 writeb(adp->va_window + offset, 0); 1938 ++offset; 1939 --bx; 1940 if (offset >= banksize) { 1941 offset = 0; 1942 ++bank; /* next bank */ 1943 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 1944 } 1945 outw(GDCIDX, 0xff08); /* bit mask */ 1946 } 1947 while (bx > 0) { 1948 l = imin(bx, banksize); 1949 bzero_io(adp->va_window + offset, l); 1950 offset += l; 1951 bx -= l; 1952 if (offset >= banksize) { 1953 offset = 0; 1954 ++bank; /* next bank */ 1955 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 1956 } 1957 } 1958 if ((x + cx) % 8) { 1959 outw(GDCIDX, (~(0xff00 >> ((x + cx) % 8)) & 0xff00) | 0x08); 1960 writeb(adp->va_window + offset, 0); 1961 ++offset; 1962 if (offset >= banksize) { 1963 offset = 0; 1964 ++bank; /* next bank */ 1965 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 1966 } 1967 outw(GDCIDX, 0xff08); /* bit mask */ 1968 } 1969 ++y; 1970 --cy; 1971 } 1972 1973 outw(GDCIDX, 0xff08); /* bit mask */ 1974 outw(GDCIDX, 0x0000); /* set/reset */ 1975 outw(GDCIDX, 0x0001); /* set/reset enable */ 1976 lwkt_reltoken(&tty_token); 1977 } 1978 1979 static void 1980 packed_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 1981 { 1982 int banksize; 1983 int bank; 1984 int pos; 1985 int offset; /* offset within window */ 1986 int end; 1987 1988 lwkt_gettoken(&tty_token); 1989 banksize = adp->va_window_size; 1990 bank = -1; 1991 cx *= adp->va_info.vi_pixel_size; 1992 while (cy > 0) { 1993 pos = adp->va_line_width*y + x*adp->va_info.vi_pixel_size; 1994 if (bank != pos/banksize) { 1995 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 1996 bank = pos/banksize; 1997 } 1998 offset = pos%banksize; 1999 end = imin(offset + cx, banksize); 2000 fill_io(val, adp->va_window + offset, 2001 (end - offset)/adp->va_info.vi_pixel_size); 2002 /* the line may cross the window boundary */ 2003 if (offset + cx > banksize) { 2004 ++bank; /* next bank */ 2005 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2006 end = offset + cx - banksize; 2007 fill_io(val, adp->va_window, end/adp->va_info.vi_pixel_size); 2008 } 2009 ++y; 2010 --cy; 2011 } 2012 lwkt_reltoken(&tty_token); 2013 } 2014 2015 static void 2016 direct_fill_rect16(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2017 { 2018 int banksize; 2019 int bank; 2020 int pos; 2021 int offset; /* offset within window */ 2022 int end; 2023 2024 lwkt_gettoken(&tty_token); 2025 /* 2026 * XXX: the function assumes that banksize is a muliple of 2027 * sizeof(u_int16_t). 2028 */ 2029 banksize = adp->va_window_size; 2030 bank = -1; 2031 cx *= sizeof(u_int16_t); 2032 while (cy > 0) { 2033 pos = adp->va_line_width*y + x*sizeof(u_int16_t); 2034 if (bank != pos/banksize) { 2035 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2036 bank = pos/banksize; 2037 } 2038 offset = pos%banksize; 2039 end = imin(offset + cx, banksize); 2040 fillw_io(val, adp->va_window + offset, 2041 (end - offset)/sizeof(u_int16_t)); 2042 /* the line may cross the window boundary */ 2043 if (offset + cx > banksize) { 2044 ++bank; /* next bank */ 2045 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2046 end = offset + cx - banksize; 2047 fillw_io(val, adp->va_window, end/sizeof(u_int16_t)); 2048 } 2049 ++y; 2050 --cy; 2051 } 2052 lwkt_reltoken(&tty_token); 2053 } 2054 2055 static void 2056 direct_fill_rect24(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2057 { 2058 int banksize; 2059 int bank; 2060 int pos; 2061 int offset; /* offset within window */ 2062 int end; 2063 int i; 2064 int j; 2065 u_int8_t b[3]; 2066 2067 lwkt_gettoken(&tty_token); 2068 b[0] = val & 0x0000ff; 2069 b[1] = (val >> 8) & 0x0000ff; 2070 b[2] = (val >> 16) & 0x0000ff; 2071 banksize = adp->va_window_size; 2072 bank = -1; 2073 cx *= 3; 2074 while (cy > 0) { 2075 pos = adp->va_line_width*y + x*3; 2076 if (bank != pos/banksize) { 2077 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2078 bank = pos/banksize; 2079 } 2080 offset = pos%banksize; 2081 end = imin(offset + cx, banksize); 2082 for (i = 0, j = offset; j < end; i = (++i)%3, ++j) { 2083 writeb(adp->va_window + j, b[i]); 2084 } 2085 /* the line may cross the window boundary */ 2086 if (offset + cx >= banksize) { 2087 ++bank; /* next bank */ 2088 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2089 j = 0; 2090 end = offset + cx - banksize; 2091 for (; j < end; i = (++i)%3, ++j) { 2092 writeb(adp->va_window + j, b[i]); 2093 } 2094 } 2095 ++y; 2096 --cy; 2097 } 2098 lwkt_reltoken(&tty_token); 2099 } 2100 2101 static void 2102 direct_fill_rect32(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2103 { 2104 int banksize; 2105 int bank; 2106 int pos; 2107 int offset; /* offset within window */ 2108 int end; 2109 2110 lwkt_gettoken(&tty_token); 2111 /* 2112 * XXX: the function assumes that banksize is a muliple of 2113 * sizeof(u_int32_t). 2114 */ 2115 banksize = adp->va_window_size; 2116 bank = -1; 2117 cx *= sizeof(u_int32_t); 2118 while (cy > 0) { 2119 pos = adp->va_line_width*y + x*sizeof(u_int32_t); 2120 if (bank != pos/banksize) { 2121 (*vidsw[adp->va_index]->set_win_org)(adp, pos); 2122 bank = pos/banksize; 2123 } 2124 offset = pos%banksize; 2125 end = imin(offset + cx, banksize); 2126 filll_io(val, adp->va_window + offset, 2127 (end - offset)/sizeof(u_int32_t)); 2128 /* the line may cross the window boundary */ 2129 if (offset + cx > banksize) { 2130 ++bank; /* next bank */ 2131 (*vidsw[adp->va_index]->set_win_org)(adp, bank*banksize); 2132 end = offset + cx - banksize; 2133 filll_io(val, adp->va_window, end/sizeof(u_int32_t)); 2134 } 2135 ++y; 2136 --cy; 2137 } 2138 lwkt_reltoken(&tty_token); 2139 } 2140 2141 static int 2142 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2143 { 2144 switch (adp->va_info.vi_mem_model) { 2145 case V_INFO_MM_TEXT: 2146 /* do nothing? XXX */ 2147 break; 2148 case V_INFO_MM_PLANAR: 2149 planar_fill_rect(adp, val, x, y, cx, cy); 2150 break; 2151 case V_INFO_MM_PACKED: 2152 packed_fill_rect(adp, val, x, y, cx, cy); 2153 break; 2154 case V_INFO_MM_DIRECT: 2155 switch (adp->va_info.vi_pixel_size) { 2156 case sizeof(u_int16_t): 2157 direct_fill_rect16(adp, val, x, y, cx, cy); 2158 break; 2159 case 3: 2160 direct_fill_rect24(adp, val, x, y, cx, cy); 2161 break; 2162 case sizeof(u_int32_t): 2163 direct_fill_rect32(adp, val, x, y, cx, cy); 2164 break; 2165 } 2166 break; 2167 } 2168 return 0; 2169 } 2170 #else /* !notyet */ 2171 static int 2172 vga_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 2173 { 2174 return ENODEV; 2175 } 2176 #endif /* notyet */ 2177 2178 static int 2179 vga_bitblt(video_adapter_t *adp,...) 2180 { 2181 /* FIXME */ 2182 return ENODEV; 2183 } 2184 2185 #endif /* !VGA_NO_MODE_CHANGE */ 2186 2187 static int 2188 get_palette(video_adapter_t *adp, int base, int count, 2189 u_char *red, u_char *green, u_char *blue, u_char *trans) 2190 { 2191 u_char *r; 2192 u_char *g; 2193 u_char *b; 2194 2195 if (count < 0 || base < 0 || count > 256 || base > 256 || 2196 base + count > 256) 2197 return EINVAL; 2198 2199 r = kmalloc(count*3, M_DEVBUF, M_WAITOK); 2200 g = r + count; 2201 b = g + count; 2202 if (vga_save_palette2(adp, base, count, r, g, b)) { 2203 kfree(r, M_DEVBUF); 2204 return ENODEV; 2205 } 2206 copyout(r, red, count); 2207 copyout(g, green, count); 2208 copyout(b, blue, count); 2209 if (trans != NULL) { 2210 bzero(r, count); 2211 copyout(r, trans, count); 2212 } 2213 kfree(r, M_DEVBUF); 2214 2215 return 0; 2216 } 2217 2218 static int 2219 set_palette(video_adapter_t *adp, int base, int count, 2220 u_char *red, u_char *green, u_char *blue, u_char *trans) 2221 { 2222 u_char *r; 2223 u_char *g; 2224 u_char *b; 2225 int err; 2226 2227 if (count < 0 || base < 0 || count > 256 || base > 256 || 2228 base + count > 256) 2229 return EINVAL; 2230 2231 r = kmalloc(count*3, M_DEVBUF, M_WAITOK); 2232 g = r + count; 2233 b = g + count; 2234 err = copyin(red, r, count); 2235 if (!err) 2236 err = copyin(green, g, count); 2237 if (!err) 2238 err = copyin(blue, b, count); 2239 if (!err) 2240 err = vga_load_palette2(adp, base, count, r, g, b); 2241 kfree(r, M_DEVBUF); 2242 2243 return (err ? ENODEV : 0); 2244 } 2245 2246 static int 2247 vga_dev_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 2248 { 2249 switch (cmd) { 2250 case FBIO_GETWINORG: /* get frame buffer window origin */ 2251 *(u_int *)arg = 0; 2252 return 0; 2253 2254 case FBIO_SETWINORG: /* set frame buffer window origin */ 2255 return ENODEV; 2256 2257 case FBIO_SETDISPSTART: /* set display start address */ 2258 return (set_display_start(adp, 2259 ((video_display_start_t *)arg)->x, 2260 ((video_display_start_t *)arg)->y) 2261 ? ENODEV : 0); 2262 2263 case FBIO_SETLINEWIDTH: /* set scan line length in pixel */ 2264 return (set_line_length(adp, *(u_int *)arg) ? ENODEV : 0); 2265 2266 case FBIO_GETPALETTE: /* get color palette */ 2267 return get_palette(adp, ((video_color_palette_t *)arg)->index, 2268 ((video_color_palette_t *)arg)->count, 2269 ((video_color_palette_t *)arg)->red, 2270 ((video_color_palette_t *)arg)->green, 2271 ((video_color_palette_t *)arg)->blue, 2272 ((video_color_palette_t *)arg)->transparent); 2273 2274 case FBIO_SETPALETTE: /* set color palette */ 2275 return set_palette(adp, ((video_color_palette_t *)arg)->index, 2276 ((video_color_palette_t *)arg)->count, 2277 ((video_color_palette_t *)arg)->red, 2278 ((video_color_palette_t *)arg)->green, 2279 ((video_color_palette_t *)arg)->blue, 2280 ((video_color_palette_t *)arg)->transparent); 2281 2282 case FBIOGTYPE: /* get frame buffer type info. */ 2283 ((struct fbtype *)arg)->fb_type = fb_type(adp->va_type); 2284 ((struct fbtype *)arg)->fb_height = adp->va_info.vi_height; 2285 ((struct fbtype *)arg)->fb_width = adp->va_info.vi_width; 2286 ((struct fbtype *)arg)->fb_depth = adp->va_info.vi_depth; 2287 if ((adp->va_info.vi_depth <= 1) || (adp->va_info.vi_depth > 8)) 2288 ((struct fbtype *)arg)->fb_cmsize = 0; 2289 else 2290 ((struct fbtype *)arg)->fb_cmsize = 1 << adp->va_info.vi_depth; 2291 ((struct fbtype *)arg)->fb_size = adp->va_buffer_size; 2292 return 0; 2293 2294 case FBIOGETCMAP: /* get color palette */ 2295 return get_palette(adp, ((struct fbcmap *)arg)->index, 2296 ((struct fbcmap *)arg)->count, 2297 ((struct fbcmap *)arg)->red, 2298 ((struct fbcmap *)arg)->green, 2299 ((struct fbcmap *)arg)->blue, NULL); 2300 2301 case FBIOPUTCMAP: /* set color palette */ 2302 return set_palette(adp, ((struct fbcmap *)arg)->index, 2303 ((struct fbcmap *)arg)->count, 2304 ((struct fbcmap *)arg)->red, 2305 ((struct fbcmap *)arg)->green, 2306 ((struct fbcmap *)arg)->blue, NULL); 2307 2308 default: 2309 return fb_commonioctl(adp, cmd, arg); 2310 } 2311 } 2312 2313 /* 2314 * diag(): 2315 * Print some information about the video adapter and video modes, 2316 * with requested level of details. 2317 */ 2318 static int 2319 vga_diag(video_adapter_t *adp, int level) 2320 { 2321 u_char *mp; 2322 #if FB_DEBUG > 1 2323 video_info_t info; 2324 int i; 2325 #endif 2326 2327 if (!vga_init_done) 2328 return ENXIO; 2329 2330 #if FB_DEBUG > 1 2331 #ifndef VGA_NO_BIOS 2332 kprintf("vga: DCC code:0x%02x\n", 2333 readb(BIOS_PADDRTOVADDR(0x488))); 2334 kprintf("vga: CRTC:0x%x, video option:0x%02x, ", 2335 readw(BIOS_PADDRTOVADDR(0x463)), 2336 readb(BIOS_PADDRTOVADDR(0x487))); 2337 kprintf("rows:%d, cols:%d, font height:%d\n", 2338 readb(BIOS_PADDRTOVADDR(0x44a)), 2339 readb(BIOS_PADDRTOVADDR(0x484)) + 1, 2340 readb(BIOS_PADDRTOVADDR(0x485))); 2341 #endif /* VGA_NO_BIOS */ 2342 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 2343 kprintf("vga: param table:%p\n", video_mode_ptr); 2344 kprintf("vga: rows_offset:%d\n", rows_offset); 2345 #endif 2346 #endif /* FB_DEBUG > 1 */ 2347 2348 fb_dump_adp_info(VGA_DRIVER_NAME, adp, level); 2349 2350 #if FB_DEBUG > 1 2351 if (adp->va_flags & V_ADP_MODECHANGE) { 2352 for (i = 0; bios_vmode[i].vi_mode != EOT; ++i) { 2353 if (bios_vmode[i].vi_mode == NA) 2354 continue; 2355 if (get_mode_param(bios_vmode[i].vi_mode) == NULL) 2356 continue; 2357 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &bios_vmode[i], level); 2358 } 2359 } else { 2360 vga_get_info(adp, adp->va_initial_mode, &info); /* shouldn't fail */ 2361 fb_dump_mode_info(VGA_DRIVER_NAME, adp, &info, level); 2362 } 2363 #endif /* FB_DEBUG > 1 */ 2364 2365 #if !defined(VGA_NO_BIOS) && !defined(VGA_NO_MODE_CHANGE) 2366 if (video_mode_ptr == NULL) 2367 kprintf("vga%d: %s: WARNING: video mode switching is not " 2368 "fully supported on this adapter\n", 2369 adp->va_unit, adp->va_name); 2370 #endif 2371 if (level <= 0) 2372 return 0; 2373 2374 kprintf("VGA parameters upon power-up\n"); 2375 hexdump(adpstate.regs, sizeof(adpstate.regs), NULL, 2376 HD_OMIT_CHARS | HD_OMIT_COUNT); 2377 2378 mp = get_mode_param(adp->va_initial_mode); 2379 if (mp == NULL) /* this shouldn't be happening */ 2380 return 0; 2381 kprintf("VGA parameters in BIOS for mode %d\n", adp->va_initial_mode); 2382 hexdump(adpstate2.regs, sizeof(adpstate2.regs), NULL, 2383 HD_OMIT_CHARS | HD_OMIT_COUNT); 2384 kprintf("VGA parameters to be used for mode %d\n", adp->va_initial_mode); 2385 hexdump(mp, V_MODE_PARAM_SIZE, NULL, HD_OMIT_CHARS | HD_OMIT_COUNT); 2386 2387 return 0; 2388 } 2389