vesa.c revision 232061
1254721Semaste/*- 2254721Semaste * Copyright (c) 1998 Kazutaka YOKOTA and Michael Smith 3353358Sdim * Copyright (c) 2009-2010 Jung-uk Kim <jkim@FreeBSD.org> 4353358Sdim * All rights reserved. 5353358Sdim * 6254721Semaste * Redistribution and use in source and binary forms, with or without 7254721Semaste * modification, are permitted provided that the following conditions 8254721Semaste * are met: 9314564Sdim * 1. Redistributions of source code must retain the above copyright 10321369Sdim * notice, this list of conditions and the following disclaimer as 11254721Semaste * the first lines of this file unmodified. 12254721Semaste * 2. Redistributions in binary form must reproduce the above copyright 13296417Sdim * notice, this list of conditions and the following disclaimer in the 14254721Semaste * documentation and/or other materials provided with the distribution. 15254721Semaste * 16254721Semaste * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 17254721Semaste * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18254721Semaste * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19254721Semaste * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20254721Semaste * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21254721Semaste * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22321369Sdim * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23344779Sdim * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24254721Semaste * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25353358Sdim * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26353358Sdim */ 27254721Semaste 28254721Semaste#include <sys/cdefs.h> 29314564Sdim__FBSDID("$FreeBSD: head/sys/dev/fb/vesa.c 232061 2012-02-23 18:59:32Z jkim $"); 30314564Sdim 31314564Sdim#include "opt_vga.h" 32309124Sdim#include "opt_vesa.h" 33314564Sdim 34309124Sdim#ifndef VGA_NO_MODE_CHANGE 35314564Sdim 36314564Sdim#include <sys/param.h> 37309124Sdim#include <sys/bus.h> 38314564Sdim#include <sys/systm.h> 39314564Sdim#include <sys/kernel.h> 40309124Sdim#include <sys/lock.h> 41314564Sdim#include <sys/module.h> 42309124Sdim#include <sys/malloc.h> 43314564Sdim#include <sys/mutex.h> 44309124Sdim#include <sys/fbio.h> 45314564Sdim#include <sys/sysctl.h> 46254721Semaste 47254721Semaste#include <vm/vm.h> 48314564Sdim#include <vm/vm_extern.h> 49254721Semaste#include <vm/vm_kern.h> 50314564Sdim#include <vm/vm_param.h> 51314564Sdim#include <vm/pmap.h> 52314564Sdim 53314564Sdim#include <machine/pc/bios.h> 54314564Sdim#include <dev/fb/vesa.h> 55314564Sdim 56314564Sdim#include <dev/fb/fbreg.h> 57314564Sdim#include <dev/fb/vgareg.h> 58314564Sdim 59309124Sdim#include <dev/pci/pcivar.h> 60321369Sdim 61314564Sdim#include <isa/isareg.h> 62254721Semaste 63341825Sdim#include <compat/x86bios/x86bios.h> 64341825Sdim 65309124Sdim#define VESA_BIOS_OFFSET 0xc0000 66321369Sdim#define VESA_PALETTE_SIZE (256 * 4) 67314564Sdim#define VESA_VIA_CLE266 "VIA CLE266\r\n" 68309124Sdim 69314564Sdim#ifndef VESA_DEBUG 70314564Sdim#define VESA_DEBUG 0 71314564Sdim#endif 72314564Sdim 73309124Sdim/* VESA video adapter state buffer stub */ 74314564Sdimstruct adp_state { 75314564Sdim int sig; 76314564Sdim#define V_STATE_SIG 0x61736576 77314564Sdim u_char regs[1]; 78314564Sdim}; 79314564Sdimtypedef struct adp_state adp_state_t; 80314564Sdim 81309124Sdimstatic struct mtx vesa_lock; 82360784Sdim 83360784Sdimstatic void *vesa_state_buf = NULL; 84309124Sdimstatic uint32_t vesa_state_buf_offs = 0; 85314564Sdimstatic ssize_t vesa_state_buf_size = 0; 86314564Sdim 87309124Sdimstatic u_char *vesa_palette = NULL; 88314564Sdimstatic uint32_t vesa_palette_offs = 0; 89314564Sdim 90314564Sdimstatic void *vesa_bios = NULL; 91314564Sdimstatic uint32_t vesa_bios_offs = VESA_BIOS_OFFSET; 92314564Sdimstatic uint32_t vesa_bios_int10 = 0; 93309124Sdimstatic size_t vesa_bios_size = 0; 94314564Sdim 95309124Sdim/* VESA video adapter */ 96314564Sdimstatic video_adapter_t *vesa_adp = NULL; 97314564Sdim 98321369Sdimstatic SYSCTL_NODE(_debug, OID_AUTO, vesa, CTLFLAG_RD, NULL, "VESA debugging"); 99314564Sdimstatic int vesa_shadow_rom = 0; 100314564SdimTUNABLE_INT("debug.vesa.shadow_rom", &vesa_shadow_rom); 101314564SdimSYSCTL_INT(_debug_vesa, OID_AUTO, shadow_rom, CTLFLAG_RDTUN, &vesa_shadow_rom, 102314564Sdim 0, "Enable video BIOS shadow"); 103309124Sdim 104314564Sdim/* VESA functions */ 105309124Sdim#if 0 106321369Sdimstatic int vesa_nop(void); 107309124Sdim#endif 108314564Sdimstatic int vesa_error(void); 109314564Sdimstatic vi_probe_t vesa_probe; 110309124Sdimstatic vi_init_t vesa_init; 111314564Sdimstatic vi_get_info_t vesa_get_info; 112314564Sdimstatic vi_query_mode_t vesa_query_mode; 113314564Sdimstatic vi_set_mode_t vesa_set_mode; 114314564Sdimstatic vi_save_font_t vesa_save_font; 115314564Sdimstatic vi_load_font_t vesa_load_font; 116314564Sdimstatic vi_show_font_t vesa_show_font; 117254721Semastestatic vi_save_palette_t vesa_save_palette; 118314564Sdimstatic vi_load_palette_t vesa_load_palette; 119309124Sdimstatic vi_set_border_t vesa_set_border; 120321369Sdimstatic vi_save_state_t vesa_save_state; 121321369Sdimstatic vi_load_state_t vesa_load_state; 122309124Sdimstatic vi_set_win_org_t vesa_set_origin; 123314564Sdimstatic vi_read_hw_cursor_t vesa_read_hw_cursor; 124314564Sdimstatic vi_set_hw_cursor_t vesa_set_hw_cursor; 125314564Sdimstatic vi_set_hw_cursor_shape_t vesa_set_hw_cursor_shape; 126314564Sdimstatic vi_blank_display_t vesa_blank_display; 127309124Sdimstatic vi_mmap_t vesa_mmap; 128314564Sdimstatic vi_ioctl_t vesa_ioctl; 129309124Sdimstatic vi_clear_t vesa_clear; 130314564Sdimstatic vi_fill_rect_t vesa_fill_rect; 131314564Sdimstatic vi_bitblt_t vesa_bitblt; 132314564Sdimstatic vi_diag_t vesa_diag; 133314564Sdimstatic int vesa_bios_info(int level); 134314564Sdim 135254721Semastestatic video_switch_t vesavidsw = { 136314564Sdim vesa_probe, 137309124Sdim vesa_init, 138314564Sdim vesa_get_info, 139321369Sdim vesa_query_mode, 140314564Sdim vesa_set_mode, 141254721Semaste vesa_save_font, 142314564Sdim vesa_load_font, 143309124Sdim vesa_show_font, 144314564Sdim vesa_save_palette, 145360784Sdim vesa_load_palette, 146360784Sdim vesa_set_border, 147360784Sdim vesa_save_state, 148360784Sdim vesa_load_state, 149360784Sdim vesa_set_origin, 150360784Sdim vesa_read_hw_cursor, 151314564Sdim vesa_set_hw_cursor, 152309124Sdim vesa_set_hw_cursor_shape, 153314564Sdim vesa_blank_display, 154314564Sdim vesa_mmap, 155314564Sdim vesa_ioctl, 156314564Sdim vesa_clear, 157314564Sdim vesa_fill_rect, 158309124Sdim vesa_bitblt, 159314564Sdim vesa_error, 160314564Sdim vesa_error, 161314564Sdim vesa_diag, 162309124Sdim}; 163314564Sdim 164314564Sdimstatic video_switch_t *prevvidsw; 165314564Sdim 166314564Sdim/* VESA BIOS video modes */ 167314564Sdim#define VESA_MAXMODES 64 168321369Sdim#define EOT (-1) 169309124Sdim#define NA (-2) 170314564Sdim 171314564Sdim#define MODE_TABLE_DELTA 8 172314564Sdim 173314564Sdimstatic int vesa_vmode_max = 0; 174309124Sdimstatic video_info_t vesa_vmode_empty = { EOT }; 175314564Sdimstatic video_info_t *vesa_vmode = &vesa_vmode_empty; 176314564Sdim 177314564Sdimstatic int vesa_init_done = FALSE; 178314564Sdimstatic int has_vesa_bios = FALSE; 179314564Sdimstatic struct vesa_info *vesa_adp_info = NULL; 180314564Sdimstatic u_int16_t *vesa_vmodetab = NULL; 181314564Sdimstatic char *vesa_oemstr = NULL; 182314564Sdimstatic char *vesa_venderstr = NULL; 183314564Sdimstatic char *vesa_prodstr = NULL; 184314564Sdimstatic char *vesa_revstr = NULL; 185314564Sdim 186254721Semaste/* local macros and functions */ 187314564Sdim#define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 188309124Sdim 189314564Sdimstatic int int10_set_mode(int mode); 190314564Sdimstatic int vesa_bios_post(void); 191321369Sdimstatic int vesa_bios_get_mode(int mode, struct vesa_mode *vmode, int flags); 192314564Sdimstatic int vesa_bios_set_mode(int mode); 193309124Sdim#if 0 194314564Sdimstatic int vesa_bios_get_dac(void); 195254721Semaste#endif 196314564Sdimstatic int vesa_bios_set_dac(int bits); 197360784Sdimstatic int vesa_bios_save_palette(int start, int colors, u_char *palette, 198360784Sdim int bits); 199360784Sdimstatic int vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, 200360784Sdim u_char *b, int bits); 201360784Sdimstatic int vesa_bios_load_palette(int start, int colors, u_char *palette, 202360784Sdim int bits); 203314564Sdimstatic int vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, 204309124Sdim u_char *b, int bits); 205314564Sdim#define STATE_SIZE 0 206314564Sdim#define STATE_SAVE 1 207314564Sdim#define STATE_LOAD 2 208296417Sdim#define STATE_HW (1<<0) 209314564Sdim#define STATE_DATA (1<<1) 210314564Sdim#define STATE_DAC (1<<2) 211314564Sdim#define STATE_REG (1<<3) 212314564Sdim#define STATE_MOST (STATE_HW | STATE_DATA | STATE_REG) 213314564Sdim#define STATE_ALL (STATE_HW | STATE_DATA | STATE_DAC | STATE_REG) 214314564Sdimstatic ssize_t vesa_bios_state_buf_size(void); 215314564Sdimstatic int vesa_bios_save_restore(int code, void *p); 216314564Sdim#ifdef MODE_TABLE_BROKEN 217341825Sdimstatic int vesa_bios_get_line_length(void); 218341825Sdim#endif 219309124Sdimstatic int vesa_bios_set_line_length(int pixel, int *bytes, int *lines); 220314564Sdim#if 0 221321369Sdimstatic int vesa_bios_get_start(int *x, int *y); 222309124Sdim#endif 223314564Sdimstatic int vesa_bios_set_start(int x, int y); 224309124Sdimstatic int vesa_map_gen_mode_num(int type, int color, int mode); 225314564Sdimstatic int vesa_translate_flags(u_int16_t vflags); 226314564Sdimstatic int vesa_translate_mmodel(u_int8_t vmodel); 227314564Sdimstatic int vesa_get_bpscanline(struct vesa_mode *vmode); 228314564Sdimstatic int vesa_bios_init(void); 229314564Sdimstatic void vesa_clear_modes(video_info_t *info, int color); 230314564Sdim 231314564Sdim#if 0 232309124Sdimstatic int vesa_get_origin(video_adapter_t *adp, off_t *offset); 233314564Sdim#endif 234314564Sdim 235314564Sdim/* INT 10 BIOS calls */ 236314564Sdimstatic int 237314564Sdimint10_set_mode(int mode) 238309124Sdim{ 239314564Sdim x86regs_t regs; 240314564Sdim 241314564Sdim x86bios_init_regs(®s); 242314564Sdim regs.R_AL = mode; 243341825Sdim 244341825Sdim x86bios_intr(®s, 0x10); 245314564Sdim 246314564Sdim return (0); 247314564Sdim} 248314564Sdim 249314564Sdimstatic int 250314564Sdimvesa_bios_post(void) 251314564Sdim{ 252314564Sdim x86regs_t regs; 253314564Sdim devclass_t dc; 254314564Sdim device_t *devs; 255309124Sdim device_t dev; 256314564Sdim int count, i, is_pci; 257314564Sdim 258314564Sdim if (x86bios_get_orm(vesa_bios_offs) == NULL) 259309124Sdim return (1); 260314564Sdim 261314564Sdim dev = NULL; 262314564Sdim is_pci = 0; 263314564Sdim 264314564Sdim /* Find the matching PCI video controller. */ 265314564Sdim dc = devclass_find("vgapci"); 266309124Sdim if (dc != NULL && devclass_get_devices(dc, &devs, &count) == 0) { 267314564Sdim for (i = 0; i < count; i++) 268314564Sdim if (device_get_flags(devs[i]) != 0 && 269314564Sdim x86bios_match_device(vesa_bios_offs, devs[i])) { 270314564Sdim dev = devs[i]; 271314564Sdim is_pci = 1; 272314564Sdim break; 273314564Sdim } 274309124Sdim free(devs, M_TEMP); 275314564Sdim } 276314564Sdim 277314564Sdim /* Try VGA if a PCI device is not found. */ 278314564Sdim if (dev == NULL) { 279360784Sdim dc = devclass_find(VGA_DRIVER_NAME); 280360784Sdim if (dc != NULL) 281360784Sdim dev = devclass_get_device(dc, 0); 282360784Sdim } 283309124Sdim 284314564Sdim if (bootverbose) 285309124Sdim printf("%s: calling BIOS POST\n", 286314564Sdim dev == NULL ? "VESA" : device_get_nameunit(dev)); 287309124Sdim 288321369Sdim x86bios_init_regs(®s); 289309124Sdim if (is_pci) { 290314564Sdim regs.R_AH = pci_get_bus(dev); 291314564Sdim regs.R_AL = (pci_get_slot(dev) << 3) | 292309124Sdim (pci_get_function(dev) & 0x07); 293314564Sdim } 294314564Sdim regs.R_DL = 0x80; 295314564Sdim x86bios_call(®s, X86BIOS_PHYSTOSEG(vesa_bios_offs + 3), 296314564Sdim X86BIOS_PHYSTOOFF(vesa_bios_offs + 3)); 297314564Sdim 298314564Sdim if (x86bios_get_intr(0x10) == 0) 299254721Semaste return (1); 300309124Sdim 301314564Sdim return (0); 302314564Sdim} 303314564Sdim 304314564Sdim/* VESA BIOS calls */ 305314564Sdimstatic int 306314564Sdimvesa_bios_get_mode(int mode, struct vesa_mode *vmode, int flags) 307314564Sdim{ 308314564Sdim x86regs_t regs; 309314564Sdim uint32_t offs; 310309124Sdim void *buf; 311314564Sdim 312314564Sdim buf = x86bios_alloc(&offs, sizeof(*vmode), flags); 313314564Sdim if (buf == NULL) 314314564Sdim return (1); 315314564Sdim 316254721Semaste x86bios_init_regs(®s); 317314564Sdim regs.R_AX = 0x4f01; 318314564Sdim regs.R_CX = mode; 319314564Sdim 320314564Sdim regs.R_ES = X86BIOS_PHYSTOSEG(offs); 321314564Sdim regs.R_DI = X86BIOS_PHYSTOOFF(offs); 322314564Sdim 323314564Sdim x86bios_intr(®s, 0x10); 324314564Sdim 325314564Sdim if (regs.R_AX != 0x004f) { 326314564Sdim x86bios_free(buf, sizeof(*vmode)); 327314564Sdim return (1); 328314564Sdim } 329314564Sdim 330254721Semaste bcopy(buf, vmode, sizeof(*vmode)); 331314564Sdim x86bios_free(buf, sizeof(*vmode)); 332309124Sdim 333314564Sdim return (0); 334314564Sdim} 335314564Sdim 336309124Sdimstatic int 337321369Sdimvesa_bios_set_mode(int mode) 338309124Sdim{ 339314564Sdim x86regs_t regs; 340254721Semaste 341314564Sdim x86bios_init_regs(®s); 342314564Sdim regs.R_AX = 0x4f02; 343314564Sdim regs.R_BX = mode; 344309124Sdim 345314564Sdim x86bios_intr(®s, 0x10); 346314564Sdim 347309124Sdim return (regs.R_AX != 0x004f); 348314564Sdim} 349309124Sdim 350314564Sdim#if 0 351309124Sdimstatic int 352314564Sdimvesa_bios_get_dac(void) 353314564Sdim{ 354314564Sdim x86regs_t regs; 355321369Sdim 356321369Sdim x86bios_init_regs(®s); 357309124Sdim regs.R_AX = 0x4f08; 358314564Sdim regs.R_BL = 1; 359314564Sdim 360314564Sdim x86bios_intr(®s, 0x10); 361309124Sdim 362314564Sdim if (regs.R_AX != 0x004f) 363314564Sdim return (6); 364309124Sdim 365314564Sdim return (regs.R_BH); 366309124Sdim} 367314564Sdim#endif 368309124Sdim 369314564Sdimstatic int 370314564Sdimvesa_bios_set_dac(int bits) 371314564Sdim{ 372314564Sdim x86regs_t regs; 373309124Sdim 374314564Sdim x86bios_init_regs(®s); 375314564Sdim regs.R_AX = 0x4f08; 376309124Sdim /* regs.R_BL = 0; */ 377314564Sdim regs.R_BH = bits; 378314564Sdim 379314564Sdim x86bios_intr(®s, 0x10); 380321369Sdim 381321369Sdim if (regs.R_AX != 0x004f) 382309124Sdim return (6); 383314564Sdim 384254721Semaste return (regs.R_BH); 385314564Sdim} 386254721Semaste 387309124Sdimstatic int 388314564Sdimvesa_bios_save_palette(int start, int colors, u_char *palette, int bits) 389314564Sdim{ 390296417Sdim x86regs_t regs; 391314564Sdim int i; 392314564Sdim 393254721Semaste x86bios_init_regs(®s); 394314564Sdim regs.R_AX = 0x4f09; 395314564Sdim regs.R_BL = 1; 396254721Semaste regs.R_CX = colors; 397254721Semaste regs.R_DX = start; 398314564Sdim 399314564Sdim regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs); 400321369Sdim regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs); 401314564Sdim 402314564Sdim bits = 8 - bits; 403314564Sdim mtx_lock(&vesa_lock); 404314564Sdim x86bios_intr(®s, 0x10); 405314564Sdim if (regs.R_AX != 0x004f) { 406254721Semaste mtx_unlock(&vesa_lock); 407254721Semaste return (1); 408314564Sdim } 409254721Semaste for (i = 0; i < colors; ++i) { 410314564Sdim palette[i * 3] = vesa_palette[i * 4 + 2] << bits; 411314564Sdim palette[i * 3 + 1] = vesa_palette[i * 4 + 1] << bits; 412254721Semaste palette[i * 3 + 2] = vesa_palette[i * 4] << bits; 413314564Sdim } 414314564Sdim mtx_unlock(&vesa_lock); 415314564Sdim 416314564Sdim return (0); 417314564Sdim} 418314564Sdim 419314564Sdimstatic int 420314564Sdimvesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, 421314564Sdim int bits) 422314564Sdim{ 423321369Sdim x86regs_t regs; 424314564Sdim int i; 425314564Sdim 426314564Sdim x86bios_init_regs(®s); 427314564Sdim regs.R_AX = 0x4f09; 428360784Sdim regs.R_BL = 1; 429360784Sdim regs.R_CX = colors; 430360784Sdim regs.R_DX = start; 431360784Sdim 432254721Semaste regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs); 433309124Sdim regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs); 434314564Sdim 435309124Sdim bits = 8 - bits; 436314564Sdim mtx_lock(&vesa_lock); 437314564Sdim x86bios_intr(®s, 0x10); 438309124Sdim if (regs.R_AX != 0x004f) { 439314564Sdim mtx_unlock(&vesa_lock); 440314564Sdim return (1); 441309124Sdim } 442314564Sdim for (i = 0; i < colors; ++i) { 443314564Sdim r[i] = vesa_palette[i * 4 + 2] << bits; 444314564Sdim g[i] = vesa_palette[i * 4 + 1] << bits; 445314564Sdim b[i] = vesa_palette[i * 4] << bits; 446314564Sdim } 447314564Sdim mtx_unlock(&vesa_lock); 448309124Sdim 449321369Sdim return (0); 450309124Sdim} 451314564Sdim 452314564Sdimstatic int 453314564Sdimvesa_bios_load_palette(int start, int colors, u_char *palette, int bits) 454314564Sdim{ 455314564Sdim x86regs_t regs; 456314564Sdim int i; 457309124Sdim 458314564Sdim x86bios_init_regs(®s); 459314564Sdim regs.R_AX = 0x4f09; 460321369Sdim /* regs.R_BL = 0; */ 461314564Sdim regs.R_CX = colors; 462309124Sdim regs.R_DX = start; 463314564Sdim 464314564Sdim regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs); 465314564Sdim regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs); 466314564Sdim 467314564Sdim bits = 8 - bits; 468314564Sdim mtx_lock(&vesa_lock); 469309124Sdim for (i = 0; i < colors; ++i) { 470314564Sdim vesa_palette[i * 4] = palette[i * 3 + 2] >> bits; 471314564Sdim vesa_palette[i * 4 + 1] = palette[i * 3 + 1] >> bits; 472309124Sdim vesa_palette[i * 4 + 2] = palette[i * 3] >> bits; 473321369Sdim vesa_palette[i * 4 + 3] = 0; 474314564Sdim } 475309124Sdim x86bios_intr(®s, 0x10); 476314564Sdim mtx_unlock(&vesa_lock); 477314564Sdim 478314564Sdim return (regs.R_AX != 0x004f); 479314564Sdim} 480314564Sdim 481314564Sdimstatic int 482314564Sdimvesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, 483314564Sdim int bits) 484314564Sdim{ 485314564Sdim x86regs_t regs; 486314564Sdim int i; 487314564Sdim 488314564Sdim x86bios_init_regs(®s); 489321369Sdim regs.R_AX = 0x4f09; 490314564Sdim /* regs.R_BL = 0; */ 491309124Sdim regs.R_CX = colors; 492314564Sdim regs.R_DX = start; 493314564Sdim 494314564Sdim regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs); 495314564Sdim regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs); 496314564Sdim 497314564Sdim bits = 8 - bits; 498314564Sdim mtx_lock(&vesa_lock); 499314564Sdim for (i = 0; i < colors; ++i) { 500321369Sdim vesa_palette[i * 4] = b[i] >> bits; 501314564Sdim vesa_palette[i * 4 + 1] = g[i] >> bits; 502314564Sdim vesa_palette[i * 4 + 2] = r[i] >> bits; 503314564Sdim vesa_palette[i * 4 + 3] = 0; 504314564Sdim } 505314564Sdim x86bios_intr(®s, 0x10); 506314564Sdim mtx_unlock(&vesa_lock); 507314564Sdim 508309124Sdim return (regs.R_AX != 0x004f); 509314564Sdim} 510314564Sdim 511314564Sdimstatic ssize_t 512314564Sdimvesa_bios_state_buf_size(void) 513314564Sdim{ 514254721Semaste x86regs_t regs; 515309124Sdim 516314564Sdim x86bios_init_regs(®s); 517314564Sdim regs.R_AX = 0x4f04; 518344779Sdim /* regs.R_DL = STATE_SIZE; */ 519314564Sdim regs.R_CX = STATE_MOST; 520314564Sdim 521314564Sdim x86bios_intr(®s, 0x10); 522314564Sdim 523314564Sdim if (regs.R_AX != 0x004f) 524314564Sdim return (0); 525314564Sdim 526314564Sdim return (regs.R_BX * 64); 527353358Sdim} 528353358Sdim 529314564Sdimstatic int 530314564Sdimvesa_bios_save_restore(int code, void *p) 531314564Sdim{ 532309124Sdim x86regs_t regs; 533360784Sdim 534360784Sdim if (code != STATE_SAVE && code != STATE_LOAD) 535360784Sdim return (1); 536360784Sdim 537360784Sdim x86bios_init_regs(®s); 538360784Sdim regs.R_AX = 0x4f04; 539360784Sdim regs.R_DL = code; 540309124Sdim regs.R_CX = STATE_MOST; 541360784Sdim 542309124Sdim regs.R_ES = X86BIOS_PHYSTOSEG(vesa_state_buf_offs); 543321369Sdim regs.R_BX = X86BIOS_PHYSTOOFF(vesa_state_buf_offs); 544314564Sdim 545309124Sdim mtx_lock(&vesa_lock); 546314564Sdim switch (code) { 547314564Sdim case STATE_SAVE: 548314564Sdim x86bios_intr(®s, 0x10); 549314564Sdim bcopy(vesa_state_buf, p, vesa_state_buf_size); 550309124Sdim break; 551314564Sdim case STATE_LOAD: 552296417Sdim bcopy(p, vesa_state_buf, vesa_state_buf_size); 553353358Sdim x86bios_intr(®s, 0x10); 554353358Sdim break; 555309124Sdim } 556314564Sdim mtx_unlock(&vesa_lock); 557314564Sdim 558314564Sdim return (regs.R_AX != 0x004f); 559314564Sdim} 560314564Sdim 561314564Sdim#ifdef MODE_TABLE_BROKEN 562309124Sdimstatic int 563321369Sdimvesa_bios_get_line_length(void) 564309124Sdim{ 565314564Sdim x86regs_t regs; 566314564Sdim 567309124Sdim x86bios_init_regs(®s); 568314564Sdim regs.R_AX = 0x4f06; 569314564Sdim regs.R_BL = 1; 570314564Sdim 571314564Sdim x86bios_intr(®s, 0x10); 572314564Sdim 573314564Sdim if (regs.R_AX != 0x004f) 574309124Sdim return (-1); 575321369Sdim 576309124Sdim return (regs.R_BX); 577314564Sdim} 578314564Sdim#endif 579309124Sdim 580314564Sdimstatic int 581314564Sdimvesa_bios_set_line_length(int pixel, int *bytes, int *lines) 582314564Sdim{ 583314564Sdim x86regs_t regs; 584314564Sdim 585254721Semaste x86bios_init_regs(®s); 586314564Sdim regs.R_AX = 0x4f06; 587254721Semaste /* regs.R_BL = 0; */ 588314564Sdim regs.R_CX = pixel; 589309124Sdim 590314564Sdim x86bios_intr(®s, 0x10); 591314564Sdim 592321369Sdim#if VESA_DEBUG > 1 593314564Sdim printf("bx:%d, cx:%d, dx:%d\n", regs.R_BX, regs.R_CX, regs.R_DX); 594254721Semaste#endif 595314564Sdim if (regs.R_AX != 0x004f) 596314564Sdim return (-1); 597360784Sdim 598360784Sdim if (bytes != NULL) 599360784Sdim *bytes = regs.R_BX; 600360784Sdim if (lines != NULL) 601314564Sdim *lines = regs.R_DX; 602309124Sdim 603314564Sdim return (0); 604314564Sdim} 605309124Sdim 606314564Sdim#if 0 607314564Sdimstatic int 608309124Sdimvesa_bios_get_start(int *x, int *y) 609314564Sdim{ 610314564Sdim x86regs_t regs; 611309124Sdim 612314564Sdim x86bios_init_regs(®s); 613314564Sdim regs.R_AX = 0x4f07; 614314564Sdim regs.R_BL = 1; 615314564Sdim 616314564Sdim x86bios_intr(®s, 0x10); 617314564Sdim 618309124Sdim if (regs.R_AX != 0x004f) 619314564Sdim return (-1); 620309124Sdim 621321369Sdim *x = regs.R_CX; 622309124Sdim *y = regs.R_DX; 623314564Sdim 624314564Sdim return (0); 625309124Sdim} 626314564Sdim#endif 627314564Sdim 628314564Sdimstatic int 629314564Sdimvesa_bios_set_start(int x, int y) 630314564Sdim{ 631309124Sdim x86regs_t regs; 632314564Sdim 633309124Sdim x86bios_init_regs(®s); 634314564Sdim regs.R_AX = 0x4f07; 635314564Sdim regs.R_BL = 0x80; 636314564Sdim regs.R_CX = x; 637314564Sdim regs.R_DX = y; 638314564Sdim 639314564Sdim x86bios_intr(®s, 0x10); 640314564Sdim 641309124Sdim return (regs.R_AX != 0x004f); 642321369Sdim} 643309124Sdim 644314564Sdim/* map a generic video mode to a known mode */ 645314564Sdimstatic int 646309124Sdimvesa_map_gen_mode_num(int type, int color, int mode) 647314564Sdim{ 648314564Sdim static struct { 649314564Sdim int from; 650314564Sdim int to; 651314564Sdim } mode_map[] = { 652314564Sdim { M_TEXT_132x25, M_VESA_C132x25 }, 653314564Sdim { M_TEXT_132x43, M_VESA_C132x43 }, 654309124Sdim { M_TEXT_132x50, M_VESA_C132x50 }, 655321369Sdim { M_TEXT_132x60, M_VESA_C132x60 }, 656309124Sdim }; 657314564Sdim int i; 658309124Sdim 659314564Sdim for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 660314564Sdim if (mode_map[i].from == mode) 661314564Sdim return (mode_map[i].to); 662314564Sdim } 663314564Sdim return (mode); 664314564Sdim} 665309124Sdim 666314564Sdimstatic int 667314564Sdimvesa_translate_flags(u_int16_t vflags) 668314564Sdim{ 669254721Semaste static struct { 670314564Sdim u_int16_t mask; 671309124Sdim int set; 672314564Sdim int reset; 673314564Sdim } ftable[] = { 674314564Sdim { V_MODECOLOR, V_INFO_COLOR, 0 }, 675254721Semaste { V_MODEGRAPHICS, V_INFO_GRAPHICS, 0 }, 676314564Sdim { V_MODELFB, V_INFO_LINEAR, 0 }, 677314564Sdim { V_MODENONVGA, V_INFO_NONVGA, 0 }, 678309124Sdim }; 679321369Sdim int flags; 680309124Sdim int i; 681314564Sdim 682309124Sdim for (flags = 0, i = 0; i < sizeof(ftable)/sizeof(ftable[0]); ++i) { 683314564Sdim flags |= (vflags & ftable[i].mask) ? 684314564Sdim ftable[i].set : ftable[i].reset; 685309124Sdim } 686314564Sdim return (flags); 687309124Sdim} 688314564Sdim 689309124Sdimstatic int 690314564Sdimvesa_translate_mmodel(u_int8_t vmodel) 691314564Sdim{ 692314564Sdim static struct { 693314564Sdim u_int8_t vmodel; 694314564Sdim int mmodel; 695309124Sdim } mtable[] = { 696321369Sdim { V_MMTEXT, V_INFO_MM_TEXT }, 697321369Sdim { V_MMCGA, V_INFO_MM_CGA }, 698309124Sdim { V_MMHGC, V_INFO_MM_HGC }, 699314564Sdim { V_MMEGA, V_INFO_MM_PLANAR }, 700309124Sdim { V_MMPACKED, V_INFO_MM_PACKED }, 701314564Sdim { V_MMDIRCOLOR, V_INFO_MM_DIRECT }, 702309124Sdim }; 703314564Sdim int i; 704314564Sdim 705314564Sdim for (i = 0; mtable[i].mmodel >= 0; ++i) { 706309124Sdim if (mtable[i].vmodel == vmodel) 707314564Sdim return (mtable[i].mmodel); 708314564Sdim } 709314564Sdim return (V_INFO_MM_OTHER); 710314564Sdim} 711314564Sdim 712309124Sdimstatic int 713314564Sdimvesa_get_bpscanline(struct vesa_mode *vmode) 714314564Sdim{ 715314564Sdim int bpsl; 716314564Sdim 717309124Sdim if ((vmode->v_modeattr & V_MODEGRAPHICS) != 0) { 718314564Sdim /* Find the minimum length. */ 719314564Sdim switch (vmode->v_bpp / vmode->v_planes) { 720309124Sdim case 1: 721314564Sdim bpsl = vmode->v_width / 8; 722314564Sdim break; 723314564Sdim case 2: 724321369Sdim bpsl = vmode->v_width / 4; 725321369Sdim break; 726309124Sdim case 4: 727314564Sdim bpsl = vmode->v_width / 2; 728314564Sdim break; 729254721Semaste default: 730309124Sdim bpsl = vmode->v_width * ((vmode->v_bpp + 7) / 8); 731314564Sdim bpsl /= vmode->v_planes; 732314564Sdim break; 733309124Sdim } 734314564Sdim 735314564Sdim /* Use VBE 3.0 information if it looks sane. */ 736321369Sdim if ((vmode->v_modeattr & V_MODELFB) != 0 && 737309124Sdim vesa_adp_info->v_version >= 0x0300 && 738314564Sdim vmode->v_linbpscanline > bpsl) 739254721Semaste return (vmode->v_linbpscanline); 740314564Sdim 741314564Sdim /* Return the minimum if the mode table looks absurd. */ 742254721Semaste if (vmode->v_bpscanline < bpsl) 743314564Sdim return (bpsl); 744296417Sdim } 745254721Semaste 746314564Sdim return (vmode->v_bpscanline); 747314564Sdim} 748314564Sdim 749314564Sdim#define VESA_MAXSTR 256 750314564Sdim 751254721Semaste#define VESA_STRCPY(dst, src) do { \ 752254721Semaste char *str; \ 753321369Sdim int i; \ 754314564Sdim dst = malloc(VESA_MAXSTR, M_DEVBUF, M_WAITOK); \ 755314564Sdim str = x86bios_offset(BIOS_SADDRTOLADDR(src)); \ 756314564Sdim for (i = 0; i < VESA_MAXSTR - 1 && str[i] != '\0'; i++) \ 757314564Sdim dst[i] = str[i]; \ 758314564Sdim dst[i] = '\0'; \ 759254721Semaste} while (0) 760254721Semaste 761314564Sdimstatic int 762254721Semastevesa_bios_init(void) 763314564Sdim{ 764314564Sdim struct vesa_mode vmode; 765314564Sdim struct vesa_info *buf; 766314564Sdim video_info_t *p; 767254721Semaste x86regs_t regs; 768254721Semaste size_t bsize; 769314564Sdim size_t msize; 770314564Sdim void *vmbuf; 771314564Sdim uint8_t *vbios; 772314564Sdim uint32_t offs; 773314564Sdim uint16_t vers; 774314564Sdim int is_via_cle266; 775309124Sdim int modes; 776314564Sdim int i; 777321369Sdim 778314564Sdim if (vesa_init_done) 779314564Sdim return (0); 780314564Sdim 781314564Sdim has_vesa_bios = FALSE; 782314564Sdim vesa_adp_info = NULL; 783314564Sdim vesa_bios_offs = VESA_BIOS_OFFSET; 784309124Sdim vesa_vmode_max = 0; 785314564Sdim vesa_vmode[0].vi_mode = EOT; 786254721Semaste 787314564Sdim /* 788309124Sdim * If the VBE real mode interrupt vector is not found, try BIOS POST. 789344779Sdim */ 790344779Sdim vesa_bios_int10 = x86bios_get_intr(0x10); 791344779Sdim if (vesa_bios_int10 == 0) { 792344779Sdim if (vesa_bios_post() != 0) 793344779Sdim return (1); 794309124Sdim vesa_bios_int10 = x86bios_get_intr(0x10); 795360784Sdim if (vesa_bios_int10 == 0) 796360784Sdim return (1); 797360784Sdim } 798360784Sdim 799360784Sdim /* 800296417Sdim * Shadow video ROM. 801360784Sdim */ 802360784Sdim offs = vesa_bios_int10; 803321369Sdim if (vesa_shadow_rom) { 804314564Sdim vbios = x86bios_get_orm(vesa_bios_offs); 805309124Sdim if (vbios != NULL) { 806314564Sdim vesa_bios_size = vbios[2] * 512; 807344779Sdim if (((VESA_BIOS_OFFSET << 12) & 0xffff0000) == 808314564Sdim (vesa_bios_int10 & 0xffff0000) && 809314564Sdim vesa_bios_size > (vesa_bios_int10 & 0xffff)) { 810344779Sdim vesa_bios = x86bios_alloc(&vesa_bios_offs, 811309124Sdim vesa_bios_size, M_WAITOK); 812314564Sdim memcpy(vesa_bios, vbios, vesa_bios_size); 813314564Sdim offs = ((vesa_bios_offs << 12) & 0xffff0000) + 814314564Sdim (vesa_bios_int10 & 0xffff); 815314564Sdim x86bios_set_intr(0x10, offs); 816314564Sdim } 817314564Sdim } 818309124Sdim if (vesa_bios == NULL) 819321369Sdim printf("VESA: failed to shadow video ROM\n"); 820309124Sdim } 821314564Sdim if (bootverbose) 822314564Sdim printf("VESA: INT 0x10 vector 0x%04x:0x%04x\n", 823314564Sdim (offs >> 16) & 0xffff, offs & 0xffff); 824314564Sdim 825314564Sdim x86bios_init_regs(®s); 826314564Sdim regs.R_AX = 0x4f00; 827314564Sdim 828314564Sdim vmbuf = x86bios_alloc(&offs, sizeof(*buf), M_WAITOK); 829254721Semaste 830314564Sdim regs.R_ES = X86BIOS_PHYSTOSEG(offs); 831309124Sdim regs.R_DI = X86BIOS_PHYSTOOFF(offs); 832314564Sdim 833314564Sdim bcopy("VBE2", vmbuf, 4); /* try for VBE2 data */ 834321369Sdim x86bios_intr(®s, 0x10); 835314564Sdim 836309124Sdim if (regs.R_AX != 0x004f || bcmp("VESA", vmbuf, 4) != 0) 837314564Sdim goto fail; 838309124Sdim 839314564Sdim vesa_adp_info = buf = malloc(sizeof(*buf), M_DEVBUF, M_WAITOK); 840314564Sdim bcopy(vmbuf, buf, sizeof(*buf)); 841314564Sdim 842314564Sdim if (bootverbose) { 843314564Sdim printf("VESA: information block\n"); 844309124Sdim hexdump(buf, sizeof(*buf), NULL, HD_OMIT_CHARS); 845314564Sdim } 846321369Sdim 847314564Sdim vers = buf->v_version = le16toh(buf->v_version); 848309124Sdim buf->v_oemstr = le32toh(buf->v_oemstr); 849314564Sdim buf->v_flags = le32toh(buf->v_flags); 850309124Sdim buf->v_modetable = le32toh(buf->v_modetable); 851314564Sdim buf->v_memsize = le16toh(buf->v_memsize); 852314564Sdim buf->v_revision = le16toh(buf->v_revision); 853314564Sdim buf->v_venderstr = le32toh(buf->v_venderstr); 854314564Sdim buf->v_prodstr = le32toh(buf->v_prodstr); 855314564Sdim buf->v_revstr = le32toh(buf->v_revstr); 856309124Sdim 857314564Sdim if (vers < 0x0102) { 858309124Sdim printf("VESA: VBE version %d.%d is not supported; " 859314564Sdim "version 1.2 or later is required.\n", 860314564Sdim ((vers & 0xf000) >> 12) * 10 + ((vers & 0x0f00) >> 8), 861314564Sdim ((vers & 0x00f0) >> 4) * 10 + (vers & 0x000f)); 862314564Sdim goto fail; 863309124Sdim } 864360784Sdim 865360784Sdim VESA_STRCPY(vesa_oemstr, buf->v_oemstr); 866309124Sdim if (vers >= 0x0200) { 867360784Sdim VESA_STRCPY(vesa_venderstr, buf->v_venderstr); 868314564Sdim VESA_STRCPY(vesa_prodstr, buf->v_prodstr); 869314564Sdim VESA_STRCPY(vesa_revstr, buf->v_revstr); 870314564Sdim } 871360784Sdim is_via_cle266 = strncmp(vesa_oemstr, VESA_VIA_CLE266, 872314564Sdim sizeof(VESA_VIA_CLE266)) == 0; 873314564Sdim 874314564Sdim if (buf->v_modetable == 0) 875360784Sdim goto fail; 876309124Sdim 877314564Sdim msize = (size_t)buf->v_memsize * 64 * 1024; 878314564Sdim 879314564Sdim vesa_vmodetab = x86bios_offset(BIOS_SADDRTOLADDR(buf->v_modetable)); 880314564Sdim 881314564Sdim for (i = 0, modes = 0; (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) && 882314564Sdim (vesa_vmodetab[i] != 0xffff); ++i) { 883309124Sdim vesa_vmodetab[i] = le16toh(vesa_vmodetab[i]); 884341825Sdim if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode, M_WAITOK)) 885341825Sdim continue; 886341825Sdim 887341825Sdim vmode.v_modeattr = le16toh(vmode.v_modeattr); 888341825Sdim vmode.v_wgran = le16toh(vmode.v_wgran); 889309124Sdim vmode.v_wsize = le16toh(vmode.v_wsize); 890314564Sdim vmode.v_waseg = le16toh(vmode.v_waseg); 891314564Sdim vmode.v_wbseg = le16toh(vmode.v_wbseg); 892309124Sdim vmode.v_posfunc = le32toh(vmode.v_posfunc); 893314564Sdim vmode.v_bpscanline = le16toh(vmode.v_bpscanline); 894314564Sdim vmode.v_width = le16toh(vmode.v_width); 895314564Sdim vmode.v_height = le16toh(vmode.v_height); 896314564Sdim vmode.v_lfb = le32toh(vmode.v_lfb); 897314564Sdim vmode.v_offscreen = le32toh(vmode.v_offscreen); 898314564Sdim vmode.v_offscreensize = le16toh(vmode.v_offscreensize); 899309124Sdim vmode.v_linbpscanline = le16toh(vmode.v_linbpscanline); 900314564Sdim vmode.v_maxpixelclock = le32toh(vmode.v_maxpixelclock); 901314564Sdim 902309124Sdim /* reject unsupported modes */ 903314564Sdim#if 0 904314564Sdim if ((vmode.v_modeattr & 905314564Sdim (V_MODESUPP | V_MODEOPTINFO | V_MODENONVGA)) != 906309124Sdim (V_MODESUPP | V_MODEOPTINFO)) 907314564Sdim continue; 908314564Sdim#else 909314564Sdim if ((vmode.v_modeattr & V_MODEOPTINFO) == 0) { 910254721Semaste#if VESA_DEBUG > 1 911314564Sdim printf("Rejecting VESA %s mode: %d x %d x %d bpp " 912314564Sdim " attr = %x\n", 913314564Sdim vmode.v_modeattr & V_MODEGRAPHICS ? 914314564Sdim "graphics" : "text", 915314564Sdim vmode.v_width, vmode.v_height, vmode.v_bpp, 916309124Sdim vmode.v_modeattr); 917314564Sdim#endif 918309124Sdim continue; 919314564Sdim } 920314564Sdim#endif 921309124Sdim 922314564Sdim bsize = vesa_get_bpscanline(&vmode) * vmode.v_height; 923309124Sdim if ((vmode.v_modeattr & V_MODEGRAPHICS) != 0) 924314564Sdim bsize *= vmode.v_planes; 925314564Sdim 926314564Sdim /* Does it have enough memory to support this mode? */ 927314564Sdim if (msize < bsize) { 928314564Sdim#if VESA_DEBUG > 1 929309124Sdim printf("Rejecting VESA %s mode: %d x %d x %d bpp " 930314564Sdim " attr = %x, not enough memory\n", 931314564Sdim vmode.v_modeattr & V_MODEGRAPHICS ? 932309124Sdim "graphics" : "text", 933314564Sdim vmode.v_width, vmode.v_height, vmode.v_bpp, 934321369Sdim vmode.v_modeattr); 935314564Sdim#endif 936314564Sdim continue; 937314564Sdim } 938314564Sdim 939254721Semaste /* expand the array if necessary */ 940309124Sdim if (modes >= vesa_vmode_max) { 941314564Sdim vesa_vmode_max += MODE_TABLE_DELTA; 942314564Sdim p = malloc(sizeof(*vesa_vmode) * (vesa_vmode_max + 1), 943314564Sdim M_DEVBUF, M_WAITOK); 944309124Sdim#if VESA_DEBUG > 1 945314564Sdim printf("vesa_bios_init(): modes:%d, vesa_mode_max:%d\n", 946314564Sdim modes, vesa_vmode_max); 947314564Sdim#endif 948254721Semaste if (modes > 0) { 949314564Sdim bcopy(vesa_vmode, p, sizeof(*vesa_vmode)*modes); 950309124Sdim free(vesa_vmode, M_DEVBUF); 951314564Sdim } 952309124Sdim vesa_vmode = p; 953321369Sdim } 954309124Sdim 955314564Sdim#if VESA_DEBUG > 1 956309124Sdim printf("Found VESA %s mode: %d x %d x %d bpp\n", 957314564Sdim vmode.v_modeattr & V_MODEGRAPHICS ? "graphics" : "text", 958314564Sdim vmode.v_width, vmode.v_height, vmode.v_bpp); 959309124Sdim#endif 960314564Sdim if (is_via_cle266) { 961309124Sdim if ((vmode.v_width & 0xff00) >> 8 == vmode.v_height - 1) { 962314564Sdim vmode.v_width &= 0xff; 963309124Sdim vmode.v_waseg = 0xb8000 >> 4; 964314564Sdim } 965314564Sdim } 966314564Sdim 967314564Sdim /* copy some fields */ 968314564Sdim bzero(&vesa_vmode[modes], sizeof(vesa_vmode[modes])); 969309124Sdim vesa_vmode[modes].vi_mode = vesa_vmodetab[i]; 970321369Sdim vesa_vmode[modes].vi_width = vmode.v_width; 971321369Sdim vesa_vmode[modes].vi_height = vmode.v_height; 972309124Sdim vesa_vmode[modes].vi_depth = vmode.v_bpp; 973314564Sdim vesa_vmode[modes].vi_planes = vmode.v_planes; 974309124Sdim vesa_vmode[modes].vi_cwidth = vmode.v_cwidth; 975314564Sdim vesa_vmode[modes].vi_cheight = vmode.v_cheight; 976309124Sdim vesa_vmode[modes].vi_window = (vm_offset_t)vmode.v_waseg << 4; 977314564Sdim /* XXX window B */ 978314564Sdim vesa_vmode[modes].vi_window_size = vmode.v_wsize * 1024; 979314564Sdim vesa_vmode[modes].vi_window_gran = vmode.v_wgran * 1024; 980309124Sdim if (vmode.v_modeattr & V_MODELFB) 981314564Sdim vesa_vmode[modes].vi_buffer = vmode.v_lfb; 982314564Sdim vesa_vmode[modes].vi_buffer_size = bsize; 983314564Sdim vesa_vmode[modes].vi_mem_model = 984314564Sdim vesa_translate_mmodel(vmode.v_memmodel); 985314564Sdim switch (vesa_vmode[modes].vi_mem_model) { 986309124Sdim case V_INFO_MM_DIRECT: 987314564Sdim if ((vmode.v_modeattr & V_MODELFB) != 0 && 988314564Sdim vers >= 0x0300) { 989314564Sdim vesa_vmode[modes].vi_pixel_fields[0] = 990314564Sdim vmode.v_linredfieldpos; 991309124Sdim vesa_vmode[modes].vi_pixel_fields[1] = 992314564Sdim vmode.v_lingreenfieldpos; 993314564Sdim vesa_vmode[modes].vi_pixel_fields[2] = 994309124Sdim vmode.v_linbluefieldpos; 995314564Sdim vesa_vmode[modes].vi_pixel_fields[3] = 996314564Sdim vmode.v_linresfieldpos; 997314564Sdim vesa_vmode[modes].vi_pixel_fsizes[0] = 998321369Sdim vmode.v_linredmasksize; 999321369Sdim vesa_vmode[modes].vi_pixel_fsizes[1] = 1000309124Sdim vmode.v_lingreenmasksize; 1001314564Sdim vesa_vmode[modes].vi_pixel_fsizes[2] = 1002314564Sdim vmode.v_linbluemasksize; 1003254721Semaste vesa_vmode[modes].vi_pixel_fsizes[3] = 1004309124Sdim vmode.v_linresmasksize; 1005314564Sdim } else { 1006314564Sdim vesa_vmode[modes].vi_pixel_fields[0] = 1007309124Sdim vmode.v_redfieldpos; 1008314564Sdim vesa_vmode[modes].vi_pixel_fields[1] = 1009314564Sdim vmode.v_greenfieldpos; 1010321369Sdim vesa_vmode[modes].vi_pixel_fields[2] = 1011309124Sdim vmode.v_bluefieldpos; 1012314564Sdim vesa_vmode[modes].vi_pixel_fields[3] = 1013254721Semaste vmode.v_resfieldpos; 1014296417Sdim vesa_vmode[modes].vi_pixel_fsizes[0] = 1015314564Sdim vmode.v_redmasksize; 1016314564Sdim vesa_vmode[modes].vi_pixel_fsizes[1] = 1017314564Sdim vmode.v_greenmasksize; 1018314564Sdim vesa_vmode[modes].vi_pixel_fsizes[2] = 1019254721Semaste vmode.v_bluemasksize; 1020314564Sdim vesa_vmode[modes].vi_pixel_fsizes[3] = 1021314564Sdim vmode.v_resmasksize; 1022314564Sdim } 1023309124Sdim /* FALLTHROUGH */ 1024314564Sdim case V_INFO_MM_PACKED: 1025314564Sdim vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7) / 8; 1026314564Sdim break; 1027254721Semaste } 1028254721Semaste vesa_vmode[modes].vi_flags = 1029314564Sdim vesa_translate_flags(vmode.v_modeattr) | V_INFO_VESA; 1030314564Sdim 1031314564Sdim ++modes; 1032314564Sdim } 1033321369Sdim vesa_vmode[modes].vi_mode = EOT; 1034314564Sdim 1035314564Sdim if (bootverbose) 1036314564Sdim printf("VESA: %d mode(s) found\n", modes); 1037314564Sdim 1038314564Sdim has_vesa_bios = (modes > 0); 1039314564Sdim if (!has_vesa_bios) 1040254721Semaste goto fail; 1041254721Semaste 1042314564Sdim x86bios_free(vmbuf, sizeof(*buf)); 1043254721Semaste 1044314564Sdim vesa_state_buf_size = vesa_bios_state_buf_size(); 1045314564Sdim vesa_palette = x86bios_alloc(&vesa_palette_offs, 1046314564Sdim VESA_PALETTE_SIZE + vesa_state_buf_size, M_WAITOK); 1047314564Sdim if (vesa_state_buf_size > 0) { 1048314564Sdim vesa_state_buf = vesa_palette + VESA_PALETTE_SIZE; 1049309124Sdim vesa_state_buf_offs = vesa_palette_offs + VESA_PALETTE_SIZE; 1050314564Sdim } 1051321369Sdim 1052314564Sdim return (0); 1053254721Semaste 1054314564Sdimfail: 1055254721Semaste if (vesa_bios != NULL) { 1056314564Sdim x86bios_set_intr(0x10, vesa_bios_int10); 1057360784Sdim vesa_bios_offs = VESA_BIOS_OFFSET; 1058360784Sdim x86bios_free(vesa_bios, vesa_bios_size); 1059360784Sdim vesa_bios = NULL; 1060360784Sdim } 1061314564Sdim if (vmbuf != NULL) 1062309124Sdim x86bios_free(vmbuf, sizeof(buf)); 1063314564Sdim if (vesa_adp_info != NULL) { 1064254721Semaste free(vesa_adp_info, M_DEVBUF); 1065314564Sdim vesa_adp_info = NULL; 1066309124Sdim } 1067314564Sdim if (vesa_oemstr != NULL) { 1068309124Sdim free(vesa_oemstr, M_DEVBUF); 1069314564Sdim vesa_oemstr = NULL; 1070314564Sdim } 1071309124Sdim if (vesa_venderstr != NULL) { 1072314564Sdim free(vesa_venderstr, M_DEVBUF); 1073314564Sdim vesa_venderstr = NULL; 1074314564Sdim } 1075314564Sdim if (vesa_prodstr != NULL) { 1076314564Sdim free(vesa_prodstr, M_DEVBUF); 1077314564Sdim vesa_prodstr = NULL; 1078309124Sdim } 1079314564Sdim if (vesa_revstr != NULL) { 1080309124Sdim free(vesa_revstr, M_DEVBUF); 1081314564Sdim vesa_revstr = NULL; 1082314564Sdim } 1083309124Sdim return (1); 1084321369Sdim} 1085309124Sdim 1086314564Sdimstatic void 1087309124Sdimvesa_clear_modes(video_info_t *info, int color) 1088314564Sdim{ 1089314564Sdim while (info->vi_mode != EOT) { 1090314564Sdim if ((info->vi_flags & V_INFO_COLOR) != color) 1091314564Sdim info->vi_mode = NA; 1092314564Sdim ++info; 1093254721Semaste } 1094314564Sdim} 1095309124Sdim 1096314564Sdim/* entry points */ 1097314564Sdim 1098321369Sdimstatic int 1099314564Sdimvesa_configure(int flags) 1100254721Semaste{ 1101314564Sdim video_adapter_t *adp; 1102254721Semaste int adapters; 1103314564Sdim int error; 1104360784Sdim int i; 1105360784Sdim 1106360784Sdim if (vesa_init_done) 1107360784Sdim return (0); 1108254721Semaste if (flags & VIO_PROBE_ONLY) 1109309124Sdim return (0); 1110314564Sdim 1111314564Sdim /* 1112309124Sdim * If the VESA module has already been loaded, abort loading 1113314564Sdim * the module this time. 1114314564Sdim */ 1115314564Sdim for (i = 0; (adp = vid_get_adapter(i)) != NULL; ++i) { 1116309124Sdim if (adp->va_flags & V_ADP_VESA) 1117321369Sdim return (ENXIO); 1118254721Semaste if (adp->va_type == KD_VGA) 1119314564Sdim break; 1120309124Sdim } 1121314564Sdim 1122314564Sdim /* 1123309124Sdim * The VGA adapter is not found. This is because either 1124314564Sdim * 1) the VGA driver has not been initialized, or 2) the VGA card 1125314564Sdim * is not present. If 1) is the case, we shall defer 1126309124Sdim * initialization for now and try again later. 1127314564Sdim */ 1128309124Sdim if (adp == NULL) { 1129314564Sdim vga_sub_configure = vesa_configure; 1130309124Sdim return (ENODEV); 1131314564Sdim } 1132314564Sdim 1133314564Sdim /* count number of registered adapters */ 1134321369Sdim for (++i; vid_get_adapter(i) != NULL; ++i) 1135321369Sdim ; 1136309124Sdim adapters = i; 1137314564Sdim 1138314564Sdim /* call VESA BIOS */ 1139254721Semaste vesa_adp = adp; 1140309124Sdim if (vesa_bios_init()) { 1141314564Sdim vesa_adp = NULL; 1142314564Sdim return (ENXIO); 1143296417Sdim } 1144314564Sdim vesa_adp->va_flags |= V_ADP_VESA; 1145314564Sdim 1146254721Semaste /* remove conflicting modes if we have more than one adapter */ 1147314564Sdim if (adapters > 1) { 1148254721Semaste vesa_clear_modes(vesa_vmode, 1149254721Semaste (vesa_adp->va_flags & V_ADP_COLOR) ? 1150321369Sdim V_INFO_COLOR : 0); 1151314564Sdim } 1152314564Sdim 1153314564Sdim if ((error = vesa_load_ioctl()) == 0) { 1154314564Sdim prevvidsw = vidsw[vesa_adp->va_index]; 1155314564Sdim vidsw[vesa_adp->va_index] = &vesavidsw; 1156254721Semaste vesa_init_done = TRUE; 1157254721Semaste } else { 1158314564Sdim vesa_adp = NULL; 1159254721Semaste return (error); 1160314564Sdim } 1161314564Sdim 1162314564Sdim return (0); 1163314564Sdim} 1164314564Sdim 1165314564Sdim#if 0 1166314564Sdimstatic int 1167314564Sdimvesa_nop(void) 1168321369Sdim{ 1169314564Sdim 1170314564Sdim return (0); 1171314564Sdim} 1172314564Sdim#endif 1173314564Sdim 1174360784Sdimstatic int 1175360784Sdimvesa_error(void) 1176360784Sdim{ 1177360784Sdim 1178254721Semaste return (1); 1179309124Sdim} 1180314564Sdim 1181309124Sdimstatic int 1182314564Sdimvesa_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 1183314564Sdim{ 1184314564Sdim 1185314564Sdim return ((*prevvidsw->probe)(unit, adpp, arg, flags)); 1186314564Sdim} 1187314564Sdim 1188254721Semastestatic int 1189314564Sdimvesa_init(int unit, video_adapter_t *adp, int flags) 1190254721Semaste{ 1191314564Sdim 1192314564Sdim return ((*prevvidsw->init)(unit, adp, flags)); 1193314564Sdim} 1194314564Sdim 1195314564Sdimstatic int 1196309124Sdimvesa_get_info(video_adapter_t *adp, int mode, video_info_t *info) 1197314564Sdim{ 1198309124Sdim int i; 1199314564Sdim 1200314564Sdim if ((*prevvidsw->get_info)(adp, mode, info) == 0) 1201314564Sdim return (0); 1202314564Sdim 1203314564Sdim if (adp != vesa_adp) 1204309124Sdim return (1); 1205314564Sdim 1206314564Sdim mode = vesa_map_gen_mode_num(vesa_adp->va_type, 1207314564Sdim vesa_adp->va_flags & V_ADP_COLOR, mode); 1208314564Sdim for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) { 1209314564Sdim if (vesa_vmode[i].vi_mode == NA) 1210314564Sdim continue; 1211314564Sdim if (vesa_vmode[i].vi_mode == mode) { 1212309124Sdim *info = vesa_vmode[i]; 1213353358Sdim return (0); 1214353358Sdim } 1215309124Sdim } 1216321369Sdim return (1); 1217309124Sdim} 1218314564Sdim 1219314564Sdimstatic int 1220309124Sdimvesa_query_mode(video_adapter_t *adp, video_info_t *info) 1221314564Sdim{ 1222314564Sdim int i; 1223314564Sdim 1224314564Sdim if ((*prevvidsw->query_mode)(adp, info) == 0) 1225314564Sdim return (0); 1226254721Semaste if (adp != vesa_adp) 1227314564Sdim return (ENODEV); 1228309124Sdim 1229314564Sdim for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) { 1230314564Sdim if ((info->vi_width != 0) 1231321369Sdim && (info->vi_width != vesa_vmode[i].vi_width)) 1232314564Sdim continue; 1233309124Sdim if ((info->vi_height != 0) 1234314564Sdim && (info->vi_height != vesa_vmode[i].vi_height)) 1235254721Semaste continue; 1236314564Sdim if ((info->vi_cwidth != 0) 1237360784Sdim && (info->vi_cwidth != vesa_vmode[i].vi_cwidth)) 1238360784Sdim continue; 1239360784Sdim if ((info->vi_cheight != 0) 1240360784Sdim && (info->vi_cheight != vesa_vmode[i].vi_cheight)) 1241314564Sdim continue; 1242309124Sdim if ((info->vi_depth != 0) 1243321369Sdim && (info->vi_depth != vesa_vmode[i].vi_depth)) 1244309124Sdim continue; 1245314564Sdim if ((info->vi_planes != 0) 1246309124Sdim && (info->vi_planes != vesa_vmode[i].vi_planes)) 1247314564Sdim continue; 1248314564Sdim /* pixel format, memory model */ 1249314564Sdim if ((info->vi_flags != 0) 1250314564Sdim && (info->vi_flags != vesa_vmode[i].vi_flags)) 1251314564Sdim continue; 1252314564Sdim *info = vesa_vmode[i]; 1253309124Sdim return (0); 1254314564Sdim } 1255309124Sdim return (ENODEV); 1256314564Sdim} 1257314564Sdim 1258309124Sdimstatic int 1259314564Sdimvesa_set_mode(video_adapter_t *adp, int mode) 1260314564Sdim{ 1261314564Sdim video_info_t info; 1262314564Sdim 1263314564Sdim if (adp != vesa_adp) 1264314564Sdim return ((*prevvidsw->set_mode)(adp, mode)); 1265309124Sdim 1266314564Sdim mode = vesa_map_gen_mode_num(adp->va_type, 1267314564Sdim adp->va_flags & V_ADP_COLOR, mode); 1268314564Sdim#if VESA_DEBUG > 0 1269314564Sdim printf("VESA: set_mode(): %d(%x) -> %d(%x)\n", 1270309124Sdim adp->va_mode, adp->va_mode, mode, mode); 1271314564Sdim#endif 1272314564Sdim /* 1273314564Sdim * If the current mode is a VESA mode and the new mode is not, 1274309124Sdim * restore the state of the adapter first by setting one of the 1275314564Sdim * standard VGA mode, so that non-standard, extended SVGA registers 1276309124Sdim * are set to the state compatible with the standard VGA modes. 1277314564Sdim * Otherwise (*prevvidsw->set_mode)() may not be able to set up 1278314564Sdim * the new mode correctly. 1279314564Sdim */ 1280309124Sdim if (VESA_MODE(adp->va_mode)) { 1281314564Sdim if (!VESA_MODE(mode) && 1282314564Sdim (*prevvidsw->get_info)(adp, mode, &info) == 0) { 1283314564Sdim if ((adp->va_flags & V_ADP_DAC8) != 0) { 1284314564Sdim vesa_bios_set_dac(6); 1285254721Semaste adp->va_flags &= ~V_ADP_DAC8; 1286314564Sdim } 1287309124Sdim int10_set_mode(adp->va_initial_bios_mode); 1288314564Sdim if (adp->va_info.vi_flags & V_INFO_LINEAR) 1289314564Sdim pmap_unmapdev(adp->va_buffer, 1290314564Sdim vesa_adp_info->v_memsize * 64 * 1024); 1291309124Sdim /* 1292321369Sdim * Once (*prevvidsw->get_info)() succeeded, 1293309124Sdim * (*prevvidsw->set_mode)() below won't fail... 1294314564Sdim */ 1295254721Semaste } 1296314564Sdim } 1297314564Sdim 1298309124Sdim /* we may not need to handle this mode after all... */ 1299314564Sdim if (!VESA_MODE(mode) && (*prevvidsw->set_mode)(adp, mode) == 0) 1300314564Sdim return (0); 1301309124Sdim 1302314564Sdim /* is the new mode supported? */ 1303309124Sdim if (vesa_get_info(adp, mode, &info)) 1304314564Sdim return (1); 1305309124Sdim /* assert(VESA_MODE(mode)); */ 1306314564Sdim 1307314564Sdim#if VESA_DEBUG > 0 1308314564Sdim printf("VESA: about to set a VESA mode...\n"); 1309321369Sdim#endif 1310321369Sdim /* don't use the linear frame buffer for text modes. XXX */ 1311309124Sdim if (!(info.vi_flags & V_INFO_GRAPHICS)) 1312314564Sdim info.vi_flags &= ~V_INFO_LINEAR; 1313314564Sdim 1314314564Sdim if ((info.vi_flags & V_INFO_LINEAR) != 0) 1315309124Sdim mode |= 0x4000; 1316314564Sdim if (vesa_bios_set_mode(mode)) 1317314564Sdim return (1); 1318309124Sdim 1319314564Sdim /* Palette format is reset by the above VBE function call. */ 1320309124Sdim adp->va_flags &= ~V_ADP_DAC8; 1321254721Semaste 1322314564Sdim if ((vesa_adp_info->v_flags & V_DAC8) != 0 && 1323314564Sdim (info.vi_flags & V_INFO_GRAPHICS) != 0 && 1324254721Semaste vesa_bios_set_dac(8) > 6) 1325254721Semaste adp->va_flags |= V_ADP_DAC8; 1326314564Sdim 1327321369Sdim if (adp->va_info.vi_flags & V_INFO_LINEAR) 1328314564Sdim pmap_unmapdev(adp->va_buffer, 1329314564Sdim vesa_adp_info->v_memsize * 64 * 1024); 1330314564Sdim 1331314564Sdim#if VESA_DEBUG > 0 1332314564Sdim printf("VESA: mode set!\n"); 1333254721Semaste#endif 1334254721Semaste vesa_adp->va_mode = mode & 0x1ff; /* Mode number is 9-bit. */ 1335314564Sdim vesa_adp->va_flags &= ~V_ADP_COLOR; 1336314564Sdim vesa_adp->va_flags |= 1337254721Semaste (info.vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; 1338314564Sdim vesa_adp->va_crtc_addr = 1339314564Sdim (vesa_adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; 1340309124Sdim 1341314564Sdim vesa_adp->va_line_width = info.vi_buffer_size / info.vi_height; 1342314564Sdim if ((info.vi_flags & V_INFO_GRAPHICS) != 0) 1343254721Semaste vesa_adp->va_line_width /= info.vi_planes; 1344254721Semaste 1345254721Semaste#ifdef MODE_TABLE_BROKEN 1346314564Sdim /* If VBE function returns bigger bytes per scan line, use it. */ 1347321369Sdim { 1348314564Sdim int bpsl = vesa_bios_get_line_length(); 1349276479Sdim if (bpsl > vesa_adp->va_line_width) { 1350314564Sdim vesa_adp->va_line_width = bpsl; 1351314564Sdim info.vi_buffer_size = bpsl * info.vi_height; 1352276479Sdim if ((info.vi_flags & V_INFO_GRAPHICS) != 0) 1353314564Sdim info.vi_buffer_size *= info.vi_planes; 1354276479Sdim } 1355314564Sdim } 1356314564Sdim#endif 1357314564Sdim 1358314564Sdim if (info.vi_flags & V_INFO_LINEAR) { 1359276479Sdim#if VESA_DEBUG > 1 1360314564Sdim printf("VESA: setting up LFB\n"); 1361314564Sdim#endif 1362276479Sdim vesa_adp->va_buffer = 1363314564Sdim (vm_offset_t)pmap_mapdev_attr(info.vi_buffer, 1364314564Sdim vesa_adp_info->v_memsize * 64 * 1024, PAT_WRITE_COMBINING); 1365314564Sdim vesa_adp->va_window = vesa_adp->va_buffer; 1366314564Sdim vesa_adp->va_window_size = info.vi_buffer_size / info.vi_planes; 1367276479Sdim vesa_adp->va_window_gran = info.vi_buffer_size / info.vi_planes; 1368314564Sdim } else { 1369314564Sdim vesa_adp->va_buffer = 0; 1370276479Sdim vesa_adp->va_window = (vm_offset_t)x86bios_offset(info.vi_window); 1371314564Sdim vesa_adp->va_window_size = info.vi_window_size; 1372314564Sdim vesa_adp->va_window_gran = info.vi_window_gran; 1373314564Sdim } 1374276479Sdim vesa_adp->va_buffer_size = info.vi_buffer_size; 1375314564Sdim vesa_adp->va_window_orig = 0; 1376314564Sdim vesa_adp->va_disp_start.x = 0; 1377360784Sdim vesa_adp->va_disp_start.y = 0; 1378360784Sdim#if VESA_DEBUG > 0 1379314564Sdim printf("vesa_set_mode(): vi_width:%d, line_width:%d\n", 1380314564Sdim info.vi_width, vesa_adp->va_line_width); 1381314564Sdim#endif 1382314564Sdim bcopy(&info, &vesa_adp->va_info, sizeof(vesa_adp->va_info)); 1383314564Sdim 1384314564Sdim /* move hardware cursor out of the way */ 1385276479Sdim (*vidsw[vesa_adp->va_index]->set_hw_cursor)(vesa_adp, -1, -1); 1386314564Sdim 1387276479Sdim return (0); 1388314564Sdim} 1389254721Semaste 1390254721Semastestatic int 1391321369Sdimvesa_save_font(video_adapter_t *adp, int page, int fontsize, int fontwidth, 1392314564Sdim u_char *data, int ch, int count) 1393314564Sdim{ 1394314564Sdim 1395254721Semaste return ((*prevvidsw->save_font)(adp, page, fontsize, fontwidth, data, 1396314564Sdim ch, count)); 1397314564Sdim} 1398314564Sdim 1399276479Sdimstatic int 1400314564Sdimvesa_load_font(video_adapter_t *adp, int page, int fontsize, int fontwidth, 1401276479Sdim u_char *data, int ch, int count) 1402314564Sdim{ 1403314564Sdim 1404314564Sdim return ((*prevvidsw->load_font)(adp, page, fontsize, fontwidth, data, 1405314564Sdim ch, count)); 1406276479Sdim} 1407314564Sdim 1408314564Sdimstatic int 1409314564Sdimvesa_show_font(video_adapter_t *adp, int page) 1410314564Sdim{ 1411314564Sdim 1412314564Sdim return ((*prevvidsw->show_font)(adp, page)); 1413360784Sdim} 1414360784Sdim 1415360784Sdimstatic int 1416360784Sdimvesa_save_palette(video_adapter_t *adp, u_char *palette) 1417314564Sdim{ 1418314564Sdim int bits; 1419254721Semaste 1420276479Sdim if (adp == vesa_adp && VESA_MODE(adp->va_mode)) { 1421314564Sdim bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6; 1422314564Sdim if (vesa_bios_save_palette(0, 256, palette, bits) == 0) 1423314564Sdim return (0); 1424276479Sdim } 1425314564Sdim 1426314564Sdim return ((*prevvidsw->save_palette)(adp, palette)); 1427254721Semaste} 1428314564Sdim 1429276479Sdimstatic int 1430314564Sdimvesa_load_palette(video_adapter_t *adp, u_char *palette) 1431254721Semaste{ 1432254721Semaste int bits; 1433314564Sdim 1434314564Sdim if (adp == vesa_adp && VESA_MODE(adp->va_mode)) { 1435314564Sdim bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6; 1436309124Sdim if (vesa_bios_load_palette(0, 256, palette, bits) == 0) 1437314564Sdim return (0); 1438314564Sdim } 1439314564Sdim 1440254721Semaste return ((*prevvidsw->load_palette)(adp, palette)); 1441314564Sdim} 1442314564Sdim 1443314564Sdimstatic int 1444254721Semastevesa_set_border(video_adapter_t *adp, int color) 1445296417Sdim{ 1446314564Sdim 1447314564Sdim return ((*prevvidsw->set_border)(adp, color)); 1448} 1449 1450static int 1451vesa_save_state(video_adapter_t *adp, void *p, size_t size) 1452{ 1453 1454 if (adp != vesa_adp) 1455 return ((*prevvidsw->save_state)(adp, p, size)); 1456 1457 if (vesa_state_buf_size == 0) 1458 return (1); 1459 if (size == 0) 1460 return (offsetof(adp_state_t, regs) + vesa_state_buf_size); 1461 if (size < (offsetof(adp_state_t, regs) + vesa_state_buf_size)) 1462 return (1); 1463 1464 ((adp_state_t *)p)->sig = V_STATE_SIG; 1465 bzero(((adp_state_t *)p)->regs, vesa_state_buf_size); 1466 return (vesa_bios_save_restore(STATE_SAVE, ((adp_state_t *)p)->regs)); 1467} 1468 1469static int 1470vesa_load_state(video_adapter_t *adp, void *p) 1471{ 1472 int mode; 1473 1474 if ((adp != vesa_adp) || (((adp_state_t *)p)->sig != V_STATE_SIG)) 1475 return ((*prevvidsw->load_state)(adp, p)); 1476 1477 if (vesa_state_buf_size == 0) 1478 return (1); 1479 1480 /* Try BIOS POST to restore a sane state. */ 1481 (void)vesa_bios_post(); 1482 mode = adp->va_mode; 1483 (void)vesa_set_mode(adp, adp->va_initial_mode); 1484 if (mode != adp->va_initial_mode) 1485 (void)vesa_set_mode(adp, mode); 1486 1487 return (vesa_bios_save_restore(STATE_LOAD, ((adp_state_t *)p)->regs)); 1488} 1489 1490#if 0 1491static int 1492vesa_get_origin(video_adapter_t *adp, off_t *offset) 1493{ 1494 x86regs_t regs; 1495 1496 x86bios_init_regs(®s); 1497 regs.R_AX = 0x4f05; 1498 regs.R_BL = 0x10; 1499 1500 x86bios_intr(®s, 0x10); 1501 1502 if (regs.R_AX != 0x004f) 1503 return (1); 1504 *offset = regs.DX * adp->va_window_gran; 1505 1506 return (0); 1507} 1508#endif 1509 1510static int 1511vesa_set_origin(video_adapter_t *adp, off_t offset) 1512{ 1513 x86regs_t regs; 1514 1515 /* 1516 * This function should return as quickly as possible to 1517 * maintain good performance of the system. For this reason, 1518 * error checking is kept minimal and let the VESA BIOS to 1519 * detect error. 1520 */ 1521 if (adp != vesa_adp) 1522 return ((*prevvidsw->set_win_org)(adp, offset)); 1523 1524 /* if this is a linear frame buffer, do nothing */ 1525 if (adp->va_info.vi_flags & V_INFO_LINEAR) 1526 return (0); 1527 /* XXX */ 1528 if (adp->va_window_gran == 0) 1529 return (1); 1530 1531 x86bios_init_regs(®s); 1532 regs.R_AX = 0x4f05; 1533 regs.R_DX = offset / adp->va_window_gran; 1534 1535 x86bios_intr(®s, 0x10); 1536 1537 if (regs.R_AX != 0x004f) 1538 return (1); 1539 1540 x86bios_init_regs(®s); 1541 regs.R_AX = 0x4f05; 1542 regs.R_BL = 1; 1543 regs.R_DX = offset / adp->va_window_gran; 1544 x86bios_intr(®s, 0x10); 1545 1546 adp->va_window_orig = (offset/adp->va_window_gran)*adp->va_window_gran; 1547 return (0); /* XXX */ 1548} 1549 1550static int 1551vesa_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 1552{ 1553 1554 return ((*prevvidsw->read_hw_cursor)(adp, col, row)); 1555} 1556 1557static int 1558vesa_set_hw_cursor(video_adapter_t *adp, int col, int row) 1559{ 1560 1561 return ((*prevvidsw->set_hw_cursor)(adp, col, row)); 1562} 1563 1564static int 1565vesa_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 1566 int celsize, int blink) 1567{ 1568 1569 return ((*prevvidsw->set_hw_cursor_shape)(adp, base, height, celsize, 1570 blink)); 1571} 1572 1573static int 1574vesa_blank_display(video_adapter_t *adp, int mode) 1575{ 1576 1577 /* XXX: use VESA DPMS */ 1578 return ((*prevvidsw->blank_display)(adp, mode)); 1579} 1580 1581static int 1582vesa_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr, 1583 int prot, vm_memattr_t *memattr) 1584{ 1585 1586#if VESA_DEBUG > 0 1587 printf("vesa_mmap(): window:0x%tx, buffer:0x%tx, offset:0x%jx\n", 1588 adp->va_info.vi_window, adp->va_info.vi_buffer, offset); 1589#endif 1590 1591 if ((adp == vesa_adp) && 1592 (adp->va_info.vi_flags & V_INFO_LINEAR) != 0) { 1593 /* va_window_size == va_buffer_size/vi_planes */ 1594 /* XXX: is this correct? */ 1595 if (offset > adp->va_window_size - PAGE_SIZE) 1596 return (-1); 1597 *paddr = adp->va_info.vi_buffer + offset; 1598 return (0); 1599 } 1600 return ((*prevvidsw->mmap)(adp, offset, paddr, prot, memattr)); 1601} 1602 1603static int 1604vesa_clear(video_adapter_t *adp) 1605{ 1606 1607 return ((*prevvidsw->clear)(adp)); 1608} 1609 1610static int 1611vesa_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 1612{ 1613 1614 return ((*prevvidsw->fill_rect)(adp, val, x, y, cx, cy)); 1615} 1616 1617static int 1618vesa_bitblt(video_adapter_t *adp,...) 1619{ 1620 1621 /* FIXME */ 1622 return (1); 1623} 1624 1625static int 1626get_palette(video_adapter_t *adp, int base, int count, 1627 u_char *red, u_char *green, u_char *blue, u_char *trans) 1628{ 1629 u_char *r; 1630 u_char *g; 1631 u_char *b; 1632 int bits; 1633 int error; 1634 1635 if (base < 0 || base >= 256 || count < 0 || count > 256) 1636 return (1); 1637 if ((base + count) > 256) 1638 return (1); 1639 if (!VESA_MODE(adp->va_mode)) 1640 return (1); 1641 1642 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6; 1643 r = malloc(count * 3, M_DEVBUF, M_WAITOK); 1644 g = r + count; 1645 b = g + count; 1646 error = vesa_bios_save_palette2(base, count, r, g, b, bits); 1647 if (error == 0) { 1648 copyout(r, red, count); 1649 copyout(g, green, count); 1650 copyout(b, blue, count); 1651 if (trans != NULL) { 1652 bzero(r, count); 1653 copyout(r, trans, count); 1654 } 1655 } 1656 free(r, M_DEVBUF); 1657 1658 return (error); 1659} 1660 1661static int 1662set_palette(video_adapter_t *adp, int base, int count, 1663 u_char *red, u_char *green, u_char *blue, u_char *trans) 1664{ 1665 u_char *r; 1666 u_char *g; 1667 u_char *b; 1668 int bits; 1669 int error; 1670 1671 if (base < 0 || base >= 256 || count < 0 || count > 256) 1672 return (1); 1673 if ((base + count) > 256) 1674 return (1); 1675 if (!VESA_MODE(adp->va_mode)) 1676 return (1); 1677 1678 bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6; 1679 r = malloc(count * 3, M_DEVBUF, M_WAITOK); 1680 g = r + count; 1681 b = g + count; 1682 copyin(red, r, count); 1683 copyin(green, g, count); 1684 copyin(blue, b, count); 1685 1686 error = vesa_bios_load_palette2(base, count, r, g, b, bits); 1687 free(r, M_DEVBUF); 1688 1689 return (error); 1690} 1691 1692static int 1693vesa_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 1694{ 1695 int bytes; 1696 1697 if (adp != vesa_adp) 1698 return ((*prevvidsw->ioctl)(adp, cmd, arg)); 1699 1700 switch (cmd) { 1701 case FBIO_SETWINORG: /* set frame buffer window origin */ 1702 if (!VESA_MODE(adp->va_mode)) 1703 return (*prevvidsw->ioctl)(adp, cmd, arg); 1704 return (vesa_set_origin(adp, *(off_t *)arg) ? ENODEV : 0); 1705 1706 case FBIO_SETDISPSTART: /* set display start address */ 1707 if (!VESA_MODE(adp->va_mode)) 1708 return ((*prevvidsw->ioctl)(adp, cmd, arg)); 1709 if (vesa_bios_set_start(((video_display_start_t *)arg)->x, 1710 ((video_display_start_t *)arg)->y)) 1711 return (ENODEV); 1712 adp->va_disp_start.x = ((video_display_start_t *)arg)->x; 1713 adp->va_disp_start.y = ((video_display_start_t *)arg)->y; 1714 return (0); 1715 1716 case FBIO_SETLINEWIDTH: /* set line length in pixel */ 1717 if (!VESA_MODE(adp->va_mode)) 1718 return ((*prevvidsw->ioctl)(adp, cmd, arg)); 1719 if (vesa_bios_set_line_length(*(u_int *)arg, &bytes, NULL)) 1720 return (ENODEV); 1721 adp->va_line_width = bytes; 1722#if VESA_DEBUG > 1 1723 printf("new line width:%d\n", adp->va_line_width); 1724#endif 1725 return (0); 1726 1727 case FBIO_GETPALETTE: /* get color palette */ 1728 if (get_palette(adp, ((video_color_palette_t *)arg)->index, 1729 ((video_color_palette_t *)arg)->count, 1730 ((video_color_palette_t *)arg)->red, 1731 ((video_color_palette_t *)arg)->green, 1732 ((video_color_palette_t *)arg)->blue, 1733 ((video_color_palette_t *)arg)->transparent)) 1734 return ((*prevvidsw->ioctl)(adp, cmd, arg)); 1735 return (0); 1736 1737 1738 case FBIO_SETPALETTE: /* set color palette */ 1739 if (set_palette(adp, ((video_color_palette_t *)arg)->index, 1740 ((video_color_palette_t *)arg)->count, 1741 ((video_color_palette_t *)arg)->red, 1742 ((video_color_palette_t *)arg)->green, 1743 ((video_color_palette_t *)arg)->blue, 1744 ((video_color_palette_t *)arg)->transparent)) 1745 return ((*prevvidsw->ioctl)(adp, cmd, arg)); 1746 return (0); 1747 1748 case FBIOGETCMAP: /* get color palette */ 1749 if (get_palette(adp, ((struct fbcmap *)arg)->index, 1750 ((struct fbcmap *)arg)->count, 1751 ((struct fbcmap *)arg)->red, 1752 ((struct fbcmap *)arg)->green, 1753 ((struct fbcmap *)arg)->blue, NULL)) 1754 return ((*prevvidsw->ioctl)(adp, cmd, arg)); 1755 return (0); 1756 1757 case FBIOPUTCMAP: /* set color palette */ 1758 if (set_palette(adp, ((struct fbcmap *)arg)->index, 1759 ((struct fbcmap *)arg)->count, 1760 ((struct fbcmap *)arg)->red, 1761 ((struct fbcmap *)arg)->green, 1762 ((struct fbcmap *)arg)->blue, NULL)) 1763 return ((*prevvidsw->ioctl)(adp, cmd, arg)); 1764 return (0); 1765 1766 default: 1767 return ((*prevvidsw->ioctl)(adp, cmd, arg)); 1768 } 1769} 1770 1771static int 1772vesa_diag(video_adapter_t *adp, int level) 1773{ 1774 int error; 1775 1776 /* call the previous handler first */ 1777 error = (*prevvidsw->diag)(adp, level); 1778 if (error) 1779 return (error); 1780 1781 if (adp != vesa_adp) 1782 return (1); 1783 1784 if (level <= 0) 1785 return (0); 1786 1787 return (0); 1788} 1789 1790static int 1791vesa_bios_info(int level) 1792{ 1793#if VESA_DEBUG > 1 1794 struct vesa_mode vmode; 1795 int i; 1796#endif 1797 uint16_t vers; 1798 1799 vers = vesa_adp_info->v_version; 1800 1801 if (bootverbose) { 1802 /* general adapter information */ 1803 printf( 1804 "VESA: v%d.%d, %dk memory, flags:0x%x, mode table:%p (%x)\n", 1805 (vers >> 12) * 10 + ((vers & 0x0f00) >> 8), 1806 ((vers & 0x00f0) >> 4) * 10 + (vers & 0x000f), 1807 vesa_adp_info->v_memsize * 64, vesa_adp_info->v_flags, 1808 vesa_vmodetab, vesa_adp_info->v_modetable); 1809 1810 /* OEM string */ 1811 if (vesa_oemstr != NULL) 1812 printf("VESA: %s\n", vesa_oemstr); 1813 } 1814 1815 if (level <= 0) 1816 return (0); 1817 1818 if (vers >= 0x0200 && bootverbose) { 1819 /* vender name, product name, product revision */ 1820 printf("VESA: %s %s %s\n", 1821 (vesa_venderstr != NULL) ? vesa_venderstr : "unknown", 1822 (vesa_prodstr != NULL) ? vesa_prodstr : "unknown", 1823 (vesa_revstr != NULL) ? vesa_revstr : "?"); 1824 } 1825 1826#if VESA_DEBUG > 1 1827 /* mode information */ 1828 for (i = 0; 1829 (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) 1830 && (vesa_vmodetab[i] != 0xffff); ++i) { 1831 if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode, M_NOWAIT)) 1832 continue; 1833 1834 /* print something for diagnostic purpose */ 1835 printf("VESA: mode:0x%03x, flags:0x%04x", 1836 vesa_vmodetab[i], vmode.v_modeattr); 1837 if (vmode.v_modeattr & V_MODEOPTINFO) { 1838 if (vmode.v_modeattr & V_MODEGRAPHICS) { 1839 printf(", G %dx%dx%d %d, ", 1840 vmode.v_width, vmode.v_height, 1841 vmode.v_bpp, vmode.v_planes); 1842 } else { 1843 printf(", T %dx%d, ", 1844 vmode.v_width, vmode.v_height); 1845 } 1846 printf("font:%dx%d, ", 1847 vmode.v_cwidth, vmode.v_cheight); 1848 printf("pages:%d, mem:%d", 1849 vmode.v_ipages + 1, vmode.v_memmodel); 1850 } 1851 if (vmode.v_modeattr & V_MODELFB) { 1852 printf("\nVESA: LFB:0x%x, off:0x%x, off_size:0x%x", 1853 vmode.v_lfb, vmode.v_offscreen, 1854 vmode.v_offscreensize*1024); 1855 } 1856 printf("\n"); 1857 printf("VESA: window A:0x%x (%x), window B:0x%x (%x), ", 1858 vmode.v_waseg, vmode.v_waattr, 1859 vmode.v_wbseg, vmode.v_wbattr); 1860 printf("size:%dk, gran:%dk\n", 1861 vmode.v_wsize, vmode.v_wgran); 1862 } 1863#endif /* VESA_DEBUG > 1 */ 1864 1865 return (0); 1866} 1867 1868/* module loading */ 1869 1870static int 1871vesa_load(void) 1872{ 1873 int error; 1874 1875 if (vesa_init_done) 1876 return (0); 1877 1878 mtx_init(&vesa_lock, "VESA lock", NULL, MTX_DEF); 1879 1880 /* locate a VGA adapter */ 1881 vesa_adp = NULL; 1882 error = vesa_configure(0); 1883 1884 if (error == 0) 1885 vesa_bios_info(bootverbose); 1886 1887 return (error); 1888} 1889 1890static int 1891vesa_unload(void) 1892{ 1893 u_char palette[256*3]; 1894 int error; 1895 1896 /* if the adapter is currently in a VESA mode, don't unload */ 1897 if ((vesa_adp != NULL) && VESA_MODE(vesa_adp->va_mode)) 1898 return (EBUSY); 1899 /* 1900 * FIXME: if there is at least one vty which is in a VESA mode, 1901 * we shouldn't be unloading! XXX 1902 */ 1903 1904 if ((error = vesa_unload_ioctl()) == 0) { 1905 if (vesa_adp != NULL) { 1906 if ((vesa_adp->va_flags & V_ADP_DAC8) != 0) { 1907 vesa_bios_save_palette(0, 256, palette, 8); 1908 vesa_bios_set_dac(6); 1909 vesa_adp->va_flags &= ~V_ADP_DAC8; 1910 vesa_bios_load_palette(0, 256, palette, 6); 1911 } 1912 vesa_adp->va_flags &= ~V_ADP_VESA; 1913 vidsw[vesa_adp->va_index] = prevvidsw; 1914 } 1915 } 1916 1917 if (vesa_bios != NULL) { 1918 x86bios_set_intr(0x10, vesa_bios_int10); 1919 x86bios_free(vesa_bios, vesa_bios_size); 1920 } 1921 if (vesa_adp_info != NULL) 1922 free(vesa_adp_info, M_DEVBUF); 1923 if (vesa_oemstr != NULL) 1924 free(vesa_oemstr, M_DEVBUF); 1925 if (vesa_venderstr != NULL) 1926 free(vesa_venderstr, M_DEVBUF); 1927 if (vesa_prodstr != NULL) 1928 free(vesa_prodstr, M_DEVBUF); 1929 if (vesa_revstr != NULL) 1930 free(vesa_revstr, M_DEVBUF); 1931 if (vesa_vmode != &vesa_vmode_empty) 1932 free(vesa_vmode, M_DEVBUF); 1933 if (vesa_palette != NULL) 1934 x86bios_free(vesa_palette, 1935 VESA_PALETTE_SIZE + vesa_state_buf_size); 1936 1937 mtx_destroy(&vesa_lock); 1938 1939 return (error); 1940} 1941 1942static int 1943vesa_mod_event(module_t mod, int type, void *data) 1944{ 1945 1946 switch (type) { 1947 case MOD_LOAD: 1948 return (vesa_load()); 1949 case MOD_UNLOAD: 1950 return (vesa_unload()); 1951 } 1952 return (EOPNOTSUPP); 1953} 1954 1955static moduledata_t vesa_mod = { 1956 "vesa", 1957 vesa_mod_event, 1958 NULL, 1959}; 1960 1961DECLARE_MODULE(vesa, vesa_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); 1962MODULE_DEPEND(vesa, x86bios, 1, 1, 1); 1963 1964#endif /* VGA_NO_MODE_CHANGE */ 1965