vesa.c revision 233894
118334Speter/*- 250397Sobrien * Copyright (c) 1998 Kazutaka YOKOTA and Michael Smith 318334Speter * Copyright (c) 2009-2012 Jung-uk Kim <jkim@FreeBSD.org> 418334Speter * All rights reserved. 518334Speter * 618334Speter * Redistribution and use in source and binary forms, with or without 718334Speter * modification, are permitted provided that the following conditions 818334Speter * are met: 918334Speter * 1. Redistributions of source code must retain the above copyright 1018334Speter * notice, this list of conditions and the following disclaimer as 1118334Speter * the first lines of this file unmodified. 1218334Speter * 2. Redistributions in binary form must reproduce the above copyright 1318334Speter * notice, this list of conditions and the following disclaimer in the 1418334Speter * documentation and/or other materials provided with the distribution. 1518334Speter * 1618334Speter * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 1718334Speter * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1818334Speter * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 1918334Speter * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 2018334Speter * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2118334Speter * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2218334Speter * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2318334Speter * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2418334Speter * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2518334Speter * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2618334Speter */ 2718334Speter 2818334Speter#include <sys/cdefs.h> 2918334Speter__FBSDID("$FreeBSD: head/sys/dev/fb/vesa.c 233894 2012-04-04 21:38:26Z jkim $"); 3018334Speter 3118334Speter#include "opt_vga.h" 3250397Sobrien#include "opt_vesa.h" 3318334Speter 3418334Speter#ifndef VGA_NO_MODE_CHANGE 3518334Speter 3618334Speter#include <sys/param.h> 3750397Sobrien#include <sys/bus.h> 3850397Sobrien#include <sys/systm.h> 3950397Sobrien#include <sys/kernel.h> 4052284Sobrien#include <sys/lock.h> 4118334Speter#include <sys/module.h> 4218334Speter#include <sys/malloc.h> 4318334Speter#include <sys/mutex.h> 4418334Speter#include <sys/fbio.h> 4518334Speter#include <sys/sysctl.h> 4650397Sobrien 4718334Speter#include <vm/vm.h> 4818334Speter#include <vm/vm_extern.h> 4918334Speter#include <vm/vm_kern.h> 5018334Speter#include <vm/vm_param.h> 5118334Speter#include <vm/pmap.h> 5218334Speter 5318334Speter#include <machine/pc/bios.h> 5418334Speter#include <dev/fb/vesa.h> 5518334Speter 5618334Speter#include <dev/fb/fbreg.h> 5718334Speter#include <dev/fb/vgareg.h> 5818334Speter 5952284Sobrien#include <dev/pci/pcivar.h> 6018334Speter 6152284Sobrien#include <isa/isareg.h> 6252284Sobrien 6318334Speter#include <compat/x86bios/x86bios.h> 6452284Sobrien 6518334Speter#define VESA_BIOS_OFFSET 0xc0000 6618334Speter#define VESA_PALETTE_SIZE (256 * 4) 6718334Speter#define VESA_VIA_CLE266 "VIA CLE266\r\n" 6818334Speter 6952284Sobrien#ifndef VESA_DEBUG 7018334Speter#define VESA_DEBUG 0 7118334Speter#endif 7218334Speter 7318334Speter/* VESA video adapter state buffer stub */ 7450397Sobrienstruct adp_state { 7550397Sobrien int sig; 7618334Speter#define V_STATE_SIG 0x61736576 7718334Speter u_char regs[1]; 7818334Speter}; 7918334Spetertypedef struct adp_state adp_state_t; 8018334Speter 8118334Speterstatic struct mtx vesa_lock; 8218334Speter 8318334Speterstatic int vesa_state; 8418334Speterstatic void *vesa_state_buf; 8518334Speterstatic uint32_t vesa_state_buf_offs; 8652284Sobrienstatic ssize_t vesa_state_buf_size; 8752284Sobrien 8852284Sobrienstatic u_char *vesa_palette; 8918334Speterstatic uint32_t vesa_palette_offs; 9018334Speter 9118334Speterstatic void *vesa_vmem_buf; 9218334Speter 9318334Speterstatic void *vesa_bios; 9418334Speterstatic uint32_t vesa_bios_offs; 9518334Speterstatic uint32_t vesa_bios_int10; 9618334Speterstatic size_t vesa_bios_size; 9718334Speter 9818334Speter/* VESA video adapter */ 9918334Speterstatic video_adapter_t *vesa_adp; 10018334Speter 10118334Speterstatic SYSCTL_NODE(_debug, OID_AUTO, vesa, CTLFLAG_RD, NULL, "VESA debugging"); 10218334Speterstatic int vesa_shadow_rom; 10318334SpeterTUNABLE_INT("debug.vesa.shadow_rom", &vesa_shadow_rom); 10418334SpeterSYSCTL_INT(_debug_vesa, OID_AUTO, shadow_rom, CTLFLAG_RDTUN, &vesa_shadow_rom, 10518334Speter 0, "Enable video BIOS shadow"); 10618334Speter 10752284Sobrien/* VESA functions */ 10818334Speter#if 0 10918334Speterstatic int vesa_nop(void); 11018334Speter#endif 11118334Speterstatic int vesa_error(void); 11218334Speterstatic vi_probe_t vesa_probe; 11318334Speterstatic vi_init_t vesa_init; 11418334Speterstatic vi_get_info_t vesa_get_info; 11518334Speterstatic vi_query_mode_t vesa_query_mode; 11618334Speterstatic vi_set_mode_t vesa_set_mode; 11718334Speterstatic vi_save_font_t vesa_save_font; 11818334Speterstatic vi_load_font_t vesa_load_font; 11918334Speterstatic vi_show_font_t vesa_show_font; 12018334Speterstatic vi_save_palette_t vesa_save_palette; 12118334Speterstatic vi_load_palette_t vesa_load_palette; 12218334Speterstatic vi_set_border_t vesa_set_border; 12318334Speterstatic vi_save_state_t vesa_save_state; 12418334Speterstatic vi_load_state_t vesa_load_state; 12552284Sobrienstatic vi_set_win_org_t vesa_set_origin; 12618334Speterstatic vi_read_hw_cursor_t vesa_read_hw_cursor; 12718334Speterstatic vi_set_hw_cursor_t vesa_set_hw_cursor; 12818334Speterstatic vi_set_hw_cursor_shape_t vesa_set_hw_cursor_shape; 12952284Sobrienstatic vi_blank_display_t vesa_blank_display; 13018334Speterstatic vi_mmap_t vesa_mmap; 13118334Speterstatic vi_ioctl_t vesa_ioctl; 13218334Speterstatic vi_clear_t vesa_clear; 13352284Sobrienstatic vi_fill_rect_t vesa_fill_rect; 13418334Speterstatic vi_bitblt_t vesa_bitblt; 13518334Speterstatic vi_diag_t vesa_diag; 13618334Speterstatic int vesa_bios_info(int level); 13718334Speter 13818334Speterstatic video_switch_t vesavidsw = { 13918334Speter vesa_probe, 14018334Speter vesa_init, 14118334Speter vesa_get_info, 14218334Speter vesa_query_mode, 14318334Speter vesa_set_mode, 14418334Speter vesa_save_font, 14518334Speter vesa_load_font, 14618334Speter vesa_show_font, 14718334Speter vesa_save_palette, 14818334Speter vesa_load_palette, 14918334Speter vesa_set_border, 15018334Speter vesa_save_state, 15118334Speter vesa_load_state, 15218334Speter vesa_set_origin, 15318334Speter vesa_read_hw_cursor, 15452284Sobrien vesa_set_hw_cursor, 15552284Sobrien vesa_set_hw_cursor_shape, 15618334Speter vesa_blank_display, 15718334Speter vesa_mmap, 15818334Speter vesa_ioctl, 15918334Speter vesa_clear, 16018334Speter vesa_fill_rect, 16118334Speter vesa_bitblt, 16218334Speter vesa_error, 16318334Speter vesa_error, 16418334Speter vesa_diag, 16518334Speter}; 16618334Speter 16718334Speterstatic video_switch_t *prevvidsw; 16818334Speter 16918334Speter/* VESA BIOS video modes */ 17052750Sobrien#define VESA_MAXMODES 64 17152750Sobrien#define EOT (-1) 17218334Speter#define NA (-2) 17318334Speter 17418334Speter#define MODE_TABLE_DELTA 8 17518334Speter 17618334Speterstatic int vesa_vmode_max; 17718334Speterstatic video_info_t *vesa_vmode; 17818334Speter 17918334Speterstatic int vesa_init_done; 18018334Speterstatic struct vesa_info *vesa_adp_info; 18118334Speterstatic u_int16_t *vesa_vmodetab; 18218334Speterstatic char *vesa_oemstr; 18318334Speterstatic char *vesa_venderstr; 18418334Speterstatic char *vesa_prodstr; 18518334Speterstatic char *vesa_revstr; 18618334Speter 18718334Speter/* local macros and functions */ 18818334Speter#define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) 18918334Speter 19018334Speterstatic int int10_set_mode(int mode); 19118334Speterstatic int vesa_bios_post(void); 19218334Speterstatic int vesa_bios_get_mode(int mode, struct vesa_mode *vmode, int flags); 19318334Speterstatic int vesa_bios_set_mode(int mode); 19418334Speter#if 0 19518334Speterstatic int vesa_bios_get_dac(void); 19618334Speter#endif 19718334Speterstatic int vesa_bios_set_dac(int bits); 19818334Speterstatic int vesa_bios_save_palette(int start, int colors, u_char *palette, 19918334Speter int bits); 20050397Sobrienstatic int vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, 20150397Sobrien u_char *b, int bits); 20218334Speterstatic int vesa_bios_load_palette(int start, int colors, u_char *palette, 20318334Speter int bits); 20418334Speterstatic int vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, 20518334Speter u_char *b, int bits); 20618334Speter#define STATE_SIZE 0 20718334Speter#define STATE_SAVE 1 20818334Speter#define STATE_LOAD 2 20918334Speterstatic ssize_t vesa_bios_state_buf_size(int); 21018334Speterstatic int vesa_bios_save_restore(int code, void *p); 21118334Speter#ifdef MODE_TABLE_BROKEN 21218334Speterstatic int vesa_bios_get_line_length(void); 21318334Speter#endif 21418334Speterstatic int vesa_bios_set_line_length(int pixel, int *bytes, int *lines); 21518334Speter#if 0 21618334Speterstatic int vesa_bios_get_start(int *x, int *y); 21718334Speter#endif 21818334Speterstatic int vesa_bios_set_start(int x, int y); 21918334Speterstatic int vesa_map_gen_mode_num(int type, int color, int mode); 22018334Speterstatic int vesa_translate_flags(u_int16_t vflags); 22118334Speterstatic int vesa_translate_mmodel(u_int8_t vmodel); 22218334Speterstatic int vesa_get_bpscanline(struct vesa_mode *vmode); 22318334Speterstatic int vesa_bios_init(void); 22418334Speterstatic void vesa_bios_uninit(void); 22518334Speterstatic void vesa_clear_modes(video_info_t *info, int color); 22618334Speter 22718334Speter#if 0 22818334Speterstatic int vesa_get_origin(video_adapter_t *adp, off_t *offset); 22918334Speter#endif 23018334Speter 23118334Speter/* INT 10 BIOS calls */ 23218334Speterstatic int 23318334Speterint10_set_mode(int mode) 23418334Speter{ 23518334Speter x86regs_t regs; 23618334Speter 23718334Speter x86bios_init_regs(®s); 23818334Speter regs.R_AL = mode; 23918334Speter 24018334Speter x86bios_intr(®s, 0x10); 24118334Speter 24218334Speter return (0); 24318334Speter} 24418334Speter 24518334Speterstatic int 24618334Spetervesa_bios_post(void) 24718334Speter{ 24818334Speter x86regs_t regs; 24918334Speter devclass_t dc; 25018334Speter device_t *devs; 25118334Speter device_t dev; 25218334Speter int count, i, is_pci; 25318334Speter 25418334Speter if (x86bios_get_orm(vesa_bios_offs) == NULL) 25518334Speter return (1); 25618334Speter 25718334Speter dev = NULL; 25818334Speter is_pci = 0; 25918334Speter 26018334Speter /* Find the matching PCI video controller. */ 26118334Speter dc = devclass_find("vgapci"); 26218334Speter if (dc != NULL && devclass_get_devices(dc, &devs, &count) == 0) { 26318334Speter for (i = 0; i < count; i++) 26418334Speter if (device_get_flags(devs[i]) != 0 && 26518334Speter x86bios_match_device(vesa_bios_offs, devs[i])) { 26618334Speter dev = devs[i]; 26718334Speter is_pci = 1; 26818334Speter break; 26950397Sobrien } 27050397Sobrien free(devs, M_TEMP); 27150397Sobrien } 27250397Sobrien 27350397Sobrien /* Try VGA if a PCI device is not found. */ 27450397Sobrien if (dev == NULL) { 27518334Speter dc = devclass_find(VGA_DRIVER_NAME); 27618334Speter if (dc != NULL) 27718334Speter dev = devclass_get_device(dc, 0); 27818334Speter } 27918334Speter 28018334Speter if (bootverbose) 28118334Speter printf("%s: calling BIOS POST\n", 28218334Speter dev == NULL ? "VESA" : device_get_nameunit(dev)); 28318334Speter 28418334Speter x86bios_init_regs(®s); 28518334Speter if (is_pci) { 28618334Speter regs.R_AH = pci_get_bus(dev); 28718334Speter regs.R_AL = (pci_get_slot(dev) << 3) | 28818334Speter (pci_get_function(dev) & 0x07); 28952284Sobrien } 29052284Sobrien regs.R_DL = 0x80; 29152284Sobrien x86bios_call(®s, X86BIOS_PHYSTOSEG(vesa_bios_offs + 3), 29252284Sobrien X86BIOS_PHYSTOOFF(vesa_bios_offs + 3)); 29352284Sobrien 29452284Sobrien if (x86bios_get_intr(0x10) == 0) 29552284Sobrien return (1); 29652284Sobrien 29718334Speter return (0); 29818334Speter} 29918334Speter 30018334Speter/* VESA BIOS calls */ 30118334Speterstatic int 30218334Spetervesa_bios_get_mode(int mode, struct vesa_mode *vmode, int flags) 30318334Speter{ 30418334Speter x86regs_t regs; 30518334Speter uint32_t offs; 30618334Speter void *buf; 30718334Speter 30818334Speter buf = x86bios_alloc(&offs, sizeof(*vmode), flags); 30918334Speter if (buf == NULL) 31018334Speter return (1); 31118334Speter 31218334Speter x86bios_init_regs(®s); 31318334Speter regs.R_AX = 0x4f01; 31418334Speter regs.R_CX = mode; 31518334Speter 31618334Speter regs.R_ES = X86BIOS_PHYSTOSEG(offs); 31718334Speter regs.R_DI = X86BIOS_PHYSTOOFF(offs); 31818334Speter 31918334Speter x86bios_intr(®s, 0x10); 32018334Speter 32118334Speter if (regs.R_AX != 0x004f) { 32218334Speter x86bios_free(buf, sizeof(*vmode)); 32318334Speter return (1); 32418334Speter } 32518334Speter 32618334Speter bcopy(buf, vmode, sizeof(*vmode)); 32718334Speter x86bios_free(buf, sizeof(*vmode)); 32818334Speter 32918334Speter return (0); 33018334Speter} 33118334Speter 33218334Speterstatic int 33318334Spetervesa_bios_set_mode(int mode) 33418334Speter{ 33518334Speter x86regs_t regs; 33618334Speter 33718334Speter x86bios_init_regs(®s); 33818334Speter regs.R_AX = 0x4f02; 33918334Speter regs.R_BX = mode; 34018334Speter 34118334Speter x86bios_intr(®s, 0x10); 34218334Speter 34318334Speter return (regs.R_AX != 0x004f); 34418334Speter} 34518334Speter 34618334Speter#if 0 34718334Speterstatic int 34818334Spetervesa_bios_get_dac(void) 34918334Speter{ 35018334Speter x86regs_t regs; 35118334Speter 35218334Speter x86bios_init_regs(®s); 35318334Speter regs.R_AX = 0x4f08; 35418334Speter regs.R_BL = 1; 35518334Speter 35618334Speter x86bios_intr(®s, 0x10); 35718334Speter 35818334Speter if (regs.R_AX != 0x004f) 35918334Speter return (6); 36018334Speter 36118334Speter return (regs.R_BH); 36218334Speter} 36318334Speter#endif 36418334Speter 36518334Speterstatic int 36618334Spetervesa_bios_set_dac(int bits) 36718334Speter{ 36818334Speter x86regs_t regs; 36918334Speter 37018334Speter x86bios_init_regs(®s); 37118334Speter regs.R_AX = 0x4f08; 37218334Speter /* regs.R_BL = 0; */ 37318334Speter regs.R_BH = bits; 37418334Speter 37518334Speter x86bios_intr(®s, 0x10); 37618334Speter 37718334Speter if (regs.R_AX != 0x004f) 37818334Speter return (6); 37918334Speter 38018334Speter return (regs.R_BH); 38118334Speter} 38218334Speter 38318334Speterstatic int 38418334Spetervesa_bios_save_palette(int start, int colors, u_char *palette, int bits) 38518334Speter{ 38618334Speter x86regs_t regs; 38718334Speter int i; 38818334Speter 38918334Speter x86bios_init_regs(®s); 39018334Speter regs.R_AX = 0x4f09; 39118334Speter regs.R_BL = 1; 39218334Speter regs.R_CX = colors; 39318334Speter regs.R_DX = start; 39418334Speter 39518334Speter regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs); 39618334Speter regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs); 39718334Speter 39818334Speter bits = 8 - bits; 39918334Speter mtx_lock(&vesa_lock); 40018334Speter x86bios_intr(®s, 0x10); 40118334Speter if (regs.R_AX != 0x004f) { 40218334Speter mtx_unlock(&vesa_lock); 40318334Speter return (1); 40418334Speter } 40518334Speter for (i = 0; i < colors; ++i) { 40618334Speter palette[i * 3] = vesa_palette[i * 4 + 2] << bits; 40718334Speter palette[i * 3 + 1] = vesa_palette[i * 4 + 1] << bits; 40818334Speter palette[i * 3 + 2] = vesa_palette[i * 4] << bits; 40950397Sobrien } 41018334Speter mtx_unlock(&vesa_lock); 41118334Speter 41218334Speter return (0); 41318334Speter} 41418334Speter 41518334Speterstatic int 41618334Spetervesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, 41718334Speter int bits) 41818334Speter{ 41918334Speter x86regs_t regs; 42018334Speter int i; 42118334Speter 42218334Speter x86bios_init_regs(®s); 42318334Speter regs.R_AX = 0x4f09; 42418334Speter regs.R_BL = 1; 42518334Speter regs.R_CX = colors; 42618334Speter regs.R_DX = start; 42718334Speter 42818334Speter regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs); 42918334Speter regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs); 43018334Speter 43118334Speter bits = 8 - bits; 43250397Sobrien mtx_lock(&vesa_lock); 43350397Sobrien x86bios_intr(®s, 0x10); 43418334Speter if (regs.R_AX != 0x004f) { 43518334Speter mtx_unlock(&vesa_lock); 43618334Speter return (1); 43718334Speter } 43818334Speter for (i = 0; i < colors; ++i) { 43918334Speter r[i] = vesa_palette[i * 4 + 2] << bits; 44018334Speter g[i] = vesa_palette[i * 4 + 1] << bits; 44118334Speter b[i] = vesa_palette[i * 4] << bits; 44218334Speter } 44318334Speter mtx_unlock(&vesa_lock); 44418334Speter 44518334Speter return (0); 44618334Speter} 44718334Speter 44818334Speterstatic int 44918334Spetervesa_bios_load_palette(int start, int colors, u_char *palette, int bits) 45018334Speter{ 45118334Speter x86regs_t regs; 45218334Speter int i; 45352284Sobrien 45418334Speter x86bios_init_regs(®s); 45518334Speter regs.R_AX = 0x4f09; 45618334Speter /* regs.R_BL = 0; */ 45718334Speter regs.R_CX = colors; 45850397Sobrien regs.R_DX = start; 45918334Speter 46018334Speter regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs); 46118334Speter regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs); 46218334Speter 46318334Speter bits = 8 - bits; 46418334Speter mtx_lock(&vesa_lock); 46518334Speter for (i = 0; i < colors; ++i) { 46618334Speter vesa_palette[i * 4] = palette[i * 3 + 2] >> bits; 46718334Speter vesa_palette[i * 4 + 1] = palette[i * 3 + 1] >> bits; 46818334Speter vesa_palette[i * 4 + 2] = palette[i * 3] >> bits; 46918334Speter vesa_palette[i * 4 + 3] = 0; 47018334Speter } 47118334Speter x86bios_intr(®s, 0x10); 47218334Speter mtx_unlock(&vesa_lock); 47318334Speter 47418334Speter return (regs.R_AX != 0x004f); 47518334Speter} 47618334Speter 47718334Speterstatic int 47818334Spetervesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, 47918334Speter int bits) 48018334Speter{ 48118334Speter x86regs_t regs; 48218334Speter int i; 48318334Speter 48418334Speter x86bios_init_regs(®s); 48518334Speter regs.R_AX = 0x4f09; 48618334Speter /* regs.R_BL = 0; */ 48718334Speter regs.R_CX = colors; 48818334Speter regs.R_DX = start; 48918334Speter 49018334Speter regs.R_ES = X86BIOS_PHYSTOSEG(vesa_palette_offs); 49118334Speter regs.R_DI = X86BIOS_PHYSTOOFF(vesa_palette_offs); 49218334Speter 49318334Speter bits = 8 - bits; 49418334Speter mtx_lock(&vesa_lock); 49518334Speter for (i = 0; i < colors; ++i) { 49618334Speter vesa_palette[i * 4] = b[i] >> bits; 49718334Speter vesa_palette[i * 4 + 1] = g[i] >> bits; 49818334Speter vesa_palette[i * 4 + 2] = r[i] >> bits; 49918334Speter vesa_palette[i * 4 + 3] = 0; 50018334Speter } 50118334Speter x86bios_intr(®s, 0x10); 50218334Speter mtx_unlock(&vesa_lock); 50318334Speter 50418334Speter return (regs.R_AX != 0x004f); 50518334Speter} 50618334Speter 50718334Speterstatic ssize_t 50818334Spetervesa_bios_state_buf_size(int state) 50918334Speter{ 51018334Speter x86regs_t regs; 51118334Speter 51218334Speter x86bios_init_regs(®s); 51318334Speter regs.R_AX = 0x4f04; 51418334Speter /* regs.R_DL = STATE_SIZE; */ 51518334Speter regs.R_CX = state; 51618334Speter 51718334Speter x86bios_intr(®s, 0x10); 51818334Speter 51918334Speter if (regs.R_AX != 0x004f) 52050397Sobrien return (0); 52150397Sobrien 52250397Sobrien return (regs.R_BX * 64); 52318334Speter} 52418334Speter 52518334Speterstatic int 52618334Spetervesa_bios_save_restore(int code, void *p) 52718334Speter{ 52818334Speter x86regs_t regs; 52918334Speter 53018334Speter if (code != STATE_SAVE && code != STATE_LOAD) 53118334Speter return (1); 53218334Speter 53318334Speter x86bios_init_regs(®s); 53418334Speter regs.R_AX = 0x4f04; 53518334Speter regs.R_DL = code; 53618334Speter regs.R_CX = vesa_state; 53750397Sobrien 53818334Speter regs.R_ES = X86BIOS_PHYSTOSEG(vesa_state_buf_offs); 53918334Speter regs.R_BX = X86BIOS_PHYSTOOFF(vesa_state_buf_offs); 54018334Speter 54118334Speter mtx_lock(&vesa_lock); 54218334Speter switch (code) { 54318334Speter case STATE_SAVE: 54418334Speter x86bios_intr(®s, 0x10); 54518334Speter if (regs.R_AX == 0x004f) 54618334Speter bcopy(vesa_state_buf, p, vesa_state_buf_size); 54718334Speter break; 54818334Speter case STATE_LOAD: 54918334Speter bcopy(p, vesa_state_buf, vesa_state_buf_size); 55018334Speter x86bios_intr(®s, 0x10); 55118334Speter break; 55218334Speter } 55318334Speter mtx_unlock(&vesa_lock); 55418334Speter 55518334Speter return (regs.R_AX != 0x004f); 55618334Speter} 55718334Speter 55818334Speter#ifdef MODE_TABLE_BROKEN 55918334Speterstatic int 56018334Spetervesa_bios_get_line_length(void) 56118334Speter{ 56218334Speter x86regs_t regs; 56318334Speter 56418334Speter x86bios_init_regs(®s); 56518334Speter regs.R_AX = 0x4f06; 56618334Speter regs.R_BL = 1; 56718334Speter 56818334Speter x86bios_intr(®s, 0x10); 56918334Speter 57018334Speter if (regs.R_AX != 0x004f) 57118334Speter return (-1); 57218334Speter 57318334Speter return (regs.R_BX); 57418334Speter} 57518334Speter#endif 57618334Speter 57718334Speterstatic int 57818334Spetervesa_bios_set_line_length(int pixel, int *bytes, int *lines) 57918334Speter{ 58018334Speter x86regs_t regs; 58118334Speter 58218334Speter x86bios_init_regs(®s); 58318334Speter regs.R_AX = 0x4f06; 58418334Speter /* regs.R_BL = 0; */ 58518334Speter regs.R_CX = pixel; 58618334Speter 58718334Speter x86bios_intr(®s, 0x10); 58818334Speter 58918334Speter#if VESA_DEBUG > 1 59018334Speter printf("bx:%d, cx:%d, dx:%d\n", regs.R_BX, regs.R_CX, regs.R_DX); 59118334Speter#endif 59218334Speter if (regs.R_AX != 0x004f) 59318334Speter return (-1); 59418334Speter 59518334Speter if (bytes != NULL) 59618334Speter *bytes = regs.R_BX; 59718334Speter if (lines != NULL) 59818334Speter *lines = regs.R_DX; 59918334Speter 60018334Speter return (0); 60118334Speter} 60218334Speter 60318334Speter#if 0 60418334Speterstatic int 60518334Spetervesa_bios_get_start(int *x, int *y) 60618334Speter{ 60718334Speter x86regs_t regs; 60818334Speter 60918334Speter x86bios_init_regs(®s); 61018334Speter regs.R_AX = 0x4f07; 61118334Speter regs.R_BL = 1; 61218334Speter 61318334Speter x86bios_intr(®s, 0x10); 61418334Speter 61518334Speter if (regs.R_AX != 0x004f) 61618334Speter return (-1); 61718334Speter 61818334Speter *x = regs.R_CX; 61918334Speter *y = regs.R_DX; 62018334Speter 62118334Speter return (0); 62218334Speter} 62318334Speter#endif 62418334Speter 62518334Speterstatic int 62618334Spetervesa_bios_set_start(int x, int y) 62718334Speter{ 62818334Speter x86regs_t regs; 62918334Speter 63018334Speter x86bios_init_regs(®s); 63118334Speter regs.R_AX = 0x4f07; 63218334Speter regs.R_BL = 0x80; 63318334Speter regs.R_CX = x; 63418334Speter regs.R_DX = y; 63518334Speter 63618334Speter x86bios_intr(®s, 0x10); 63718334Speter 63818334Speter return (regs.R_AX != 0x004f); 63918334Speter} 64018334Speter 64118334Speter/* map a generic video mode to a known mode */ 64218334Speterstatic int 64318334Spetervesa_map_gen_mode_num(int type, int color, int mode) 64418334Speter{ 64518334Speter static struct { 64618334Speter int from; 64718334Speter int to; 64818334Speter } mode_map[] = { 64918334Speter { M_TEXT_132x25, M_VESA_C132x25 }, 65018334Speter { M_TEXT_132x43, M_VESA_C132x43 }, 65118334Speter { M_TEXT_132x50, M_VESA_C132x50 }, 65218334Speter { M_TEXT_132x60, M_VESA_C132x60 }, 65318334Speter }; 65418334Speter int i; 65518334Speter 65618334Speter for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { 65718334Speter if (mode_map[i].from == mode) 65818334Speter return (mode_map[i].to); 65918334Speter } 66018334Speter return (mode); 66118334Speter} 66218334Speter 66318334Speterstatic int 66418334Spetervesa_translate_flags(u_int16_t vflags) 66518334Speter{ 66618334Speter static struct { 66718334Speter u_int16_t mask; 66818334Speter int set; 66918334Speter int reset; 67018334Speter } ftable[] = { 67118334Speter { V_MODECOLOR, V_INFO_COLOR, 0 }, 67218334Speter { V_MODEGRAPHICS, V_INFO_GRAPHICS, 0 }, 67318334Speter { V_MODELFB, V_INFO_LINEAR, 0 }, 67418334Speter { V_MODENONVGA, V_INFO_NONVGA, 0 }, 67518334Speter }; 67618334Speter int flags; 67718334Speter int i; 67818334Speter 67918334Speter for (flags = 0, i = 0; i < sizeof(ftable)/sizeof(ftable[0]); ++i) { 68018334Speter flags |= (vflags & ftable[i].mask) ? 68118334Speter ftable[i].set : ftable[i].reset; 68218334Speter } 68318334Speter return (flags); 68418334Speter} 68518334Speter 68618334Speterstatic int 68718334Spetervesa_translate_mmodel(u_int8_t vmodel) 68818334Speter{ 68918334Speter static struct { 69018334Speter u_int8_t vmodel; 69118334Speter int mmodel; 69218334Speter } mtable[] = { 69318334Speter { V_MMTEXT, V_INFO_MM_TEXT }, 69418334Speter { V_MMCGA, V_INFO_MM_CGA }, 69518334Speter { V_MMHGC, V_INFO_MM_HGC }, 69618334Speter { V_MMEGA, V_INFO_MM_PLANAR }, 69718334Speter { V_MMPACKED, V_INFO_MM_PACKED }, 69818334Speter { V_MMDIRCOLOR, V_INFO_MM_DIRECT }, 69918334Speter }; 70018334Speter int i; 70118334Speter 70218334Speter for (i = 0; mtable[i].mmodel >= 0; ++i) { 70318334Speter if (mtable[i].vmodel == vmodel) 70418334Speter return (mtable[i].mmodel); 70518334Speter } 70618334Speter return (V_INFO_MM_OTHER); 70718334Speter} 70818334Speter 70918334Speterstatic int 71018334Spetervesa_get_bpscanline(struct vesa_mode *vmode) 71118334Speter{ 71218334Speter int bpsl; 71318334Speter 71418334Speter if ((vmode->v_modeattr & V_MODEGRAPHICS) != 0) { 71518334Speter /* Find the minimum length. */ 71618334Speter switch (vmode->v_bpp / vmode->v_planes) { 71718334Speter case 1: 71818334Speter bpsl = vmode->v_width / 8; 71918334Speter break; 72018334Speter case 2: 72118334Speter bpsl = vmode->v_width / 4; 72218334Speter break; 72318334Speter case 4: 72418334Speter bpsl = vmode->v_width / 2; 72518334Speter break; 72618334Speter default: 72718334Speter bpsl = vmode->v_width * ((vmode->v_bpp + 7) / 8); 72818334Speter bpsl /= vmode->v_planes; 72918334Speter break; 73018334Speter } 73118334Speter 73218334Speter /* Use VBE 3.0 information if it looks sane. */ 73318334Speter if ((vmode->v_modeattr & V_MODELFB) != 0 && 73418334Speter vesa_adp_info->v_version >= 0x0300 && 73518334Speter vmode->v_linbpscanline > bpsl) 73618334Speter return (vmode->v_linbpscanline); 73718334Speter 73818334Speter /* Return the minimum if the mode table looks absurd. */ 73918334Speter if (vmode->v_bpscanline < bpsl) 74018334Speter return (bpsl); 74118334Speter } 74218334Speter 74318334Speter return (vmode->v_bpscanline); 74418334Speter} 74518334Speter 74618334Speter#define VESA_MAXSTR 256 74718334Speter 74818334Speter#define VESA_STRCPY(dst, src) do { \ 74918334Speter char *str; \ 75018334Speter int i; \ 75150397Sobrien dst = malloc(VESA_MAXSTR, M_DEVBUF, M_WAITOK); \ 75250397Sobrien str = x86bios_offset(BIOS_SADDRTOLADDR(src)); \ 75318334Speter for (i = 0; i < VESA_MAXSTR - 1 && str[i] != '\0'; i++) \ 75418334Speter dst[i] = str[i]; \ 75518334Speter dst[i] = '\0'; \ 75618334Speter} while (0) 75718334Speter 75818334Speterstatic int 75918334Spetervesa_bios_init(void) 76018334Speter{ 76118334Speter struct vesa_mode vmode; 76218334Speter struct vesa_info *buf; 76318334Speter video_info_t *p; 76418334Speter x86regs_t regs; 76518334Speter size_t bsize; 76618334Speter size_t msize; 76718334Speter void *vmbuf; 76818334Speter uint8_t *vbios; 76918334Speter uint32_t offs; 77018334Speter uint16_t vers; 77118334Speter int is_via_cle266; 77218334Speter int modes; 77318334Speter int i; 77418334Speter 77518334Speter if (vesa_init_done) 77618334Speter return (0); 77718334Speter 77818334Speter vesa_bios_offs = VESA_BIOS_OFFSET; 77918334Speter 78050397Sobrien /* 78150397Sobrien * If the VBE real mode interrupt vector is not found, try BIOS POST. 78218334Speter */ 78318334Speter vesa_bios_int10 = x86bios_get_intr(0x10); 78418334Speter if (vesa_bios_int10 == 0) { 78518334Speter if (vesa_bios_post() != 0) 78618334Speter return (1); 78718334Speter vesa_bios_int10 = x86bios_get_intr(0x10); 78818334Speter if (vesa_bios_int10 == 0) 78918334Speter return (1); 79018334Speter } 79118334Speter 79250397Sobrien /* 79350397Sobrien * Shadow video ROM. 79418334Speter */ 79518334Speter offs = vesa_bios_int10; 79618334Speter if (vesa_shadow_rom) { 79718334Speter vbios = x86bios_get_orm(vesa_bios_offs); 79818334Speter if (vbios != NULL) { 79918334Speter vesa_bios_size = vbios[2] * 512; 80018334Speter if (((VESA_BIOS_OFFSET << 12) & 0xffff0000) == 80118334Speter (vesa_bios_int10 & 0xffff0000) && 80218334Speter vesa_bios_size > (vesa_bios_int10 & 0xffff)) { 80318334Speter vesa_bios = x86bios_alloc(&vesa_bios_offs, 80418334Speter vesa_bios_size, M_WAITOK); 80518334Speter bcopy(vbios, vesa_bios, vesa_bios_size); 80618334Speter offs = ((vesa_bios_offs << 12) & 0xffff0000) + 80718334Speter (vesa_bios_int10 & 0xffff); 80818334Speter x86bios_set_intr(0x10, offs); 80918334Speter } 81018334Speter } 81118334Speter if (vesa_bios == NULL) 81218334Speter printf("VESA: failed to shadow video ROM\n"); 81318334Speter } 81418334Speter if (bootverbose) 81518334Speter printf("VESA: INT 0x10 vector 0x%04x:0x%04x\n", 81618334Speter (offs >> 16) & 0xffff, offs & 0xffff); 81718334Speter 81818334Speter x86bios_init_regs(®s); 81918334Speter regs.R_AX = 0x4f00; 82018334Speter 82118334Speter vmbuf = x86bios_alloc(&offs, sizeof(*buf), M_WAITOK); 82218334Speter 82318334Speter regs.R_ES = X86BIOS_PHYSTOSEG(offs); 82418334Speter regs.R_DI = X86BIOS_PHYSTOOFF(offs); 82518334Speter 82618334Speter bcopy("VBE2", vmbuf, 4); /* try for VBE2 data */ 82718334Speter x86bios_intr(®s, 0x10); 82818334Speter 82918334Speter if (regs.R_AX != 0x004f || bcmp("VESA", vmbuf, 4) != 0) 83018334Speter goto fail; 83118334Speter 83218334Speter vesa_adp_info = buf = malloc(sizeof(*buf), M_DEVBUF, M_WAITOK); 83318334Speter bcopy(vmbuf, buf, sizeof(*buf)); 83418334Speter 83518334Speter if (bootverbose) { 83618334Speter printf("VESA: information block\n"); 83718334Speter hexdump(buf, sizeof(*buf), NULL, HD_OMIT_CHARS); 83818334Speter } 83918334Speter 84018334Speter vers = buf->v_version = le16toh(buf->v_version); 84150397Sobrien buf->v_oemstr = le32toh(buf->v_oemstr); 84218334Speter buf->v_flags = le32toh(buf->v_flags); 84318334Speter buf->v_modetable = le32toh(buf->v_modetable); 84418334Speter buf->v_memsize = le16toh(buf->v_memsize); 84518334Speter buf->v_revision = le16toh(buf->v_revision); 84618334Speter buf->v_venderstr = le32toh(buf->v_venderstr); 84718334Speter buf->v_prodstr = le32toh(buf->v_prodstr); 84818334Speter buf->v_revstr = le32toh(buf->v_revstr); 84918334Speter 85018334Speter if (vers < 0x0102) { 85118334Speter printf("VESA: VBE version %d.%d is not supported; " 85218334Speter "version 1.2 or later is required.\n", 85318334Speter ((vers & 0xf000) >> 12) * 10 + ((vers & 0x0f00) >> 8), 85418334Speter ((vers & 0x00f0) >> 4) * 10 + (vers & 0x000f)); 85518334Speter goto fail; 85618334Speter } 85718334Speter 85818334Speter VESA_STRCPY(vesa_oemstr, buf->v_oemstr); 85918334Speter if (vers >= 0x0200) { 86018334Speter VESA_STRCPY(vesa_venderstr, buf->v_venderstr); 86118334Speter VESA_STRCPY(vesa_prodstr, buf->v_prodstr); 86218334Speter VESA_STRCPY(vesa_revstr, buf->v_revstr); 86318334Speter } 86418334Speter is_via_cle266 = strncmp(vesa_oemstr, VESA_VIA_CLE266, 86550397Sobrien sizeof(VESA_VIA_CLE266)) == 0; 86618334Speter 86718334Speter if (buf->v_modetable == 0) 86818334Speter goto fail; 86918334Speter 87018334Speter msize = (size_t)buf->v_memsize * 64 * 1024; 87118334Speter 87218334Speter vesa_vmodetab = x86bios_offset(BIOS_SADDRTOLADDR(buf->v_modetable)); 87318334Speter 87418334Speter for (i = 0, modes = 0; (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) && 87518334Speter (vesa_vmodetab[i] != 0xffff); ++i) { 87618334Speter vesa_vmodetab[i] = le16toh(vesa_vmodetab[i]); 87718334Speter if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode, M_WAITOK)) 87818334Speter continue; 87918334Speter 88018334Speter vmode.v_modeattr = le16toh(vmode.v_modeattr); 88118334Speter vmode.v_wgran = le16toh(vmode.v_wgran); 88218334Speter vmode.v_wsize = le16toh(vmode.v_wsize); 88318334Speter vmode.v_waseg = le16toh(vmode.v_waseg); 88418334Speter vmode.v_wbseg = le16toh(vmode.v_wbseg); 88518334Speter vmode.v_posfunc = le32toh(vmode.v_posfunc); 88618334Speter vmode.v_bpscanline = le16toh(vmode.v_bpscanline); 88718334Speter vmode.v_width = le16toh(vmode.v_width); 88818334Speter vmode.v_height = le16toh(vmode.v_height); 88918334Speter vmode.v_lfb = le32toh(vmode.v_lfb); 89018334Speter vmode.v_offscreen = le32toh(vmode.v_offscreen); 89118334Speter vmode.v_offscreensize = le16toh(vmode.v_offscreensize); 89218334Speter vmode.v_linbpscanline = le16toh(vmode.v_linbpscanline); 89318334Speter vmode.v_maxpixelclock = le32toh(vmode.v_maxpixelclock); 89450397Sobrien 89518334Speter /* reject unsupported modes */ 89618334Speter#if 0 89718334Speter if ((vmode.v_modeattr & 89818334Speter (V_MODESUPP | V_MODEOPTINFO | V_MODENONVGA)) != 89918334Speter (V_MODESUPP | V_MODEOPTINFO)) 90018334Speter continue; 90118334Speter#else 90218334Speter if ((vmode.v_modeattr & V_MODEOPTINFO) == 0) { 90318334Speter#if VESA_DEBUG > 1 90418334Speter printf("Rejecting VESA %s mode: %d x %d x %d bpp " 90518334Speter " attr = %x\n", 90618334Speter vmode.v_modeattr & V_MODEGRAPHICS ? 90718334Speter "graphics" : "text", 90818334Speter vmode.v_width, vmode.v_height, vmode.v_bpp, 90918334Speter vmode.v_modeattr); 91018334Speter#endif 91118334Speter continue; 91218334Speter } 91318334Speter#endif 91418334Speter 91518334Speter bsize = vesa_get_bpscanline(&vmode) * vmode.v_height; 91618334Speter if ((vmode.v_modeattr & V_MODEGRAPHICS) != 0) 91718334Speter bsize *= vmode.v_planes; 91818334Speter 91918334Speter /* Does it have enough memory to support this mode? */ 92018334Speter if (msize < bsize) { 92118334Speter#if VESA_DEBUG > 1 92218334Speter printf("Rejecting VESA %s mode: %d x %d x %d bpp " 92318334Speter " attr = %x, not enough memory\n", 92418334Speter vmode.v_modeattr & V_MODEGRAPHICS ? 92518334Speter "graphics" : "text", 92618334Speter vmode.v_width, vmode.v_height, vmode.v_bpp, 92718334Speter vmode.v_modeattr); 92818334Speter#endif 92918334Speter continue; 93050397Sobrien } 93118334Speter 93218334Speter /* expand the array if necessary */ 93318334Speter if (modes >= vesa_vmode_max) { 93418334Speter vesa_vmode_max += MODE_TABLE_DELTA; 93518334Speter p = malloc(sizeof(*vesa_vmode) * (vesa_vmode_max + 1), 93618334Speter M_DEVBUF, M_WAITOK); 93718334Speter#if VESA_DEBUG > 1 93818334Speter printf("vesa_bios_init(): modes:%d, vesa_mode_max:%d\n", 93918334Speter modes, vesa_vmode_max); 94018334Speter#endif 94118334Speter if (modes > 0) { 94218334Speter bcopy(vesa_vmode, p, sizeof(*vesa_vmode)*modes); 94318334Speter free(vesa_vmode, M_DEVBUF); 94418334Speter } 94518334Speter vesa_vmode = p; 94618334Speter } 94718334Speter 94818334Speter#if VESA_DEBUG > 1 94918334Speter printf("Found VESA %s mode: %d x %d x %d bpp\n", 95018334Speter vmode.v_modeattr & V_MODEGRAPHICS ? "graphics" : "text", 95118334Speter vmode.v_width, vmode.v_height, vmode.v_bpp); 95218334Speter#endif 95318334Speter if (is_via_cle266) { 95418334Speter if ((vmode.v_width & 0xff00) >> 8 == vmode.v_height - 1) { 95518334Speter vmode.v_width &= 0xff; 95618334Speter vmode.v_waseg = 0xb8000 >> 4; 95718334Speter } 95818334Speter } 95918334Speter 96050397Sobrien /* copy some fields */ 96118334Speter bzero(&vesa_vmode[modes], sizeof(vesa_vmode[modes])); 96218334Speter vesa_vmode[modes].vi_mode = vesa_vmodetab[i]; 96318334Speter vesa_vmode[modes].vi_width = vmode.v_width; 96418334Speter vesa_vmode[modes].vi_height = vmode.v_height; 96518334Speter vesa_vmode[modes].vi_depth = vmode.v_bpp; 96618334Speter vesa_vmode[modes].vi_planes = vmode.v_planes; 96750397Sobrien vesa_vmode[modes].vi_cwidth = vmode.v_cwidth; 96818334Speter vesa_vmode[modes].vi_cheight = vmode.v_cheight; 96950397Sobrien vesa_vmode[modes].vi_window = (vm_offset_t)vmode.v_waseg << 4; 97018334Speter /* XXX window B */ 97118334Speter vesa_vmode[modes].vi_window_size = vmode.v_wsize * 1024; 97218334Speter vesa_vmode[modes].vi_window_gran = vmode.v_wgran * 1024; 97318334Speter if (vmode.v_modeattr & V_MODELFB) 97418334Speter vesa_vmode[modes].vi_buffer = vmode.v_lfb; 97518334Speter vesa_vmode[modes].vi_buffer_size = bsize; 97618334Speter vesa_vmode[modes].vi_mem_model = 97718334Speter vesa_translate_mmodel(vmode.v_memmodel); 97818334Speter switch (vesa_vmode[modes].vi_mem_model) { 97918334Speter case V_INFO_MM_DIRECT: 98018334Speter if ((vmode.v_modeattr & V_MODELFB) != 0 && 98118334Speter vers >= 0x0300) { 98218334Speter vesa_vmode[modes].vi_pixel_fields[0] = 98318334Speter vmode.v_linredfieldpos; 98418334Speter vesa_vmode[modes].vi_pixel_fields[1] = 98518334Speter vmode.v_lingreenfieldpos; 98618334Speter vesa_vmode[modes].vi_pixel_fields[2] = 98718334Speter vmode.v_linbluefieldpos; 98818334Speter vesa_vmode[modes].vi_pixel_fields[3] = 98918334Speter vmode.v_linresfieldpos; 99018334Speter vesa_vmode[modes].vi_pixel_fsizes[0] = 99118334Speter vmode.v_linredmasksize; 99218334Speter vesa_vmode[modes].vi_pixel_fsizes[1] = 99318334Speter vmode.v_lingreenmasksize; 99418334Speter vesa_vmode[modes].vi_pixel_fsizes[2] = 99518334Speter vmode.v_linbluemasksize; 99618334Speter vesa_vmode[modes].vi_pixel_fsizes[3] = 99718334Speter vmode.v_linresmasksize; 99818334Speter } else { 99918334Speter vesa_vmode[modes].vi_pixel_fields[0] = 100018334Speter vmode.v_redfieldpos; 100118334Speter vesa_vmode[modes].vi_pixel_fields[1] = 100218334Speter vmode.v_greenfieldpos; 100318334Speter vesa_vmode[modes].vi_pixel_fields[2] = 100418334Speter vmode.v_bluefieldpos; 100518334Speter vesa_vmode[modes].vi_pixel_fields[3] = 100618334Speter vmode.v_resfieldpos; 100718334Speter vesa_vmode[modes].vi_pixel_fsizes[0] = 100818334Speter vmode.v_redmasksize; 100918334Speter vesa_vmode[modes].vi_pixel_fsizes[1] = 101018334Speter vmode.v_greenmasksize; 101118334Speter vesa_vmode[modes].vi_pixel_fsizes[2] = 101218334Speter vmode.v_bluemasksize; 101318334Speter vesa_vmode[modes].vi_pixel_fsizes[3] = 101418334Speter vmode.v_resmasksize; 101518334Speter } 101618334Speter /* FALLTHROUGH */ 101718334Speter case V_INFO_MM_PACKED: 101818334Speter vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7) / 8; 101918334Speter break; 102018334Speter } 102118334Speter vesa_vmode[modes].vi_flags = 102218334Speter vesa_translate_flags(vmode.v_modeattr) | V_INFO_VESA; 102318334Speter 102418334Speter ++modes; 102518334Speter } 102618334Speter vesa_vmode[modes].vi_mode = EOT; 102750397Sobrien 102850397Sobrien if (bootverbose) 102918334Speter printf("VESA: %d mode(s) found\n", modes); 103018334Speter 103118334Speter if (modes == 0) 103218334Speter goto fail; 103350397Sobrien 103450397Sobrien x86bios_free(vmbuf, sizeof(*buf)); 103550397Sobrien 103650397Sobrien /* Probe supported save/restore states. */ 103750397Sobrien for (i = 0; i < 4; i++) 103850397Sobrien if (vesa_bios_state_buf_size(1 << i) > 0) 103950397Sobrien vesa_state |= 1 << i; 104050397Sobrien if (vesa_state != 0) 104150397Sobrien vesa_state_buf_size = vesa_bios_state_buf_size(vesa_state); 104250397Sobrien vesa_palette = x86bios_alloc(&vesa_palette_offs, 104350397Sobrien VESA_PALETTE_SIZE + vesa_state_buf_size, M_WAITOK); 104450397Sobrien if (vesa_state_buf_size > 0) { 104550397Sobrien vesa_state_buf = vesa_palette + VESA_PALETTE_SIZE; 104650397Sobrien vesa_state_buf_offs = vesa_palette_offs + VESA_PALETTE_SIZE; 104750397Sobrien } 104850397Sobrien 104950397Sobrien return (0); 105050397Sobrien 105118334Speterfail: 105218334Speter x86bios_free(vmbuf, sizeof(buf)); 105318334Speter vesa_bios_uninit(); 105418334Speter return (1); 105518334Speter} 105618334Speter 105718334Speterstatic void 105818334Spetervesa_bios_uninit(void) 105918334Speter{ 106018334Speter 106118334Speter if (vesa_bios != NULL) { 106218334Speter x86bios_set_intr(0x10, vesa_bios_int10); 106318334Speter vesa_bios_offs = VESA_BIOS_OFFSET; 106418334Speter x86bios_free(vesa_bios, vesa_bios_size); 106518334Speter vesa_bios = NULL; 106618334Speter } 106718334Speter if (vesa_adp_info != NULL) { 106818334Speter free(vesa_adp_info, M_DEVBUF); 106918334Speter vesa_adp_info = NULL; 107018334Speter } 107118334Speter if (vesa_oemstr != NULL) { 107218334Speter free(vesa_oemstr, M_DEVBUF); 107318334Speter vesa_oemstr = NULL; 107418334Speter } 107518334Speter if (vesa_venderstr != NULL) { 107618334Speter free(vesa_venderstr, M_DEVBUF); 107718334Speter vesa_venderstr = NULL; 107818334Speter } 107918334Speter if (vesa_prodstr != NULL) { 108018334Speter free(vesa_prodstr, M_DEVBUF); 108118334Speter vesa_prodstr = NULL; 108218334Speter } 108318334Speter if (vesa_revstr != NULL) { 108418334Speter free(vesa_revstr, M_DEVBUF); 108518334Speter vesa_revstr = NULL; 108618334Speter } 108718334Speter if (vesa_vmode != NULL) { 108852284Sobrien free(vesa_vmode, M_DEVBUF); 108952284Sobrien vesa_vmode = NULL; 109052284Sobrien } 109152284Sobrien if (vesa_palette != NULL) { 109252284Sobrien x86bios_free(vesa_palette, 109352284Sobrien VESA_PALETTE_SIZE + vesa_state_buf_size); 109418334Speter vesa_palette = NULL; 109518334Speter } 109618334Speter} 109718334Speter 109818334Speterstatic void 109918334Spetervesa_clear_modes(video_info_t *info, int color) 110018334Speter{ 110118334Speter while (info->vi_mode != EOT) { 110218334Speter if ((info->vi_flags & V_INFO_COLOR) != color) 110318334Speter info->vi_mode = NA; 110418334Speter ++info; 110518334Speter } 110650397Sobrien} 110718334Speter 110818334Speter/* entry points */ 110918334Speter 111018334Speterstatic int 111118334Spetervesa_configure(int flags) 111218334Speter{ 111318334Speter video_adapter_t *adp; 111418334Speter int adapters; 111518334Speter int error; 111618334Speter int i; 111718334Speter 111818334Speter if (vesa_init_done) 111918334Speter return (0); 112018334Speter if (flags & VIO_PROBE_ONLY) 112118334Speter return (0); 112218334Speter 112318334Speter /* 112418334Speter * If the VESA module has already been loaded, abort loading 112518334Speter * the module this time. 112618334Speter */ 112718334Speter for (i = 0; (adp = vid_get_adapter(i)) != NULL; ++i) { 112818334Speter if (adp->va_flags & V_ADP_VESA) 112918334Speter return (ENXIO); 113018334Speter if (adp->va_type == KD_VGA) 113118334Speter break; 113218334Speter } 113318334Speter 113418334Speter /* 113518334Speter * The VGA adapter is not found. This is because either 113618334Speter * 1) the VGA driver has not been initialized, or 2) the VGA card 113718334Speter * is not present. If 1) is the case, we shall defer 113818334Speter * initialization for now and try again later. 113918334Speter */ 114018334Speter if (adp == NULL) { 114118334Speter vga_sub_configure = vesa_configure; 114218334Speter return (ENODEV); 114318334Speter } 114418334Speter 114518334Speter /* count number of registered adapters */ 114618334Speter for (++i; vid_get_adapter(i) != NULL; ++i) 114718334Speter ; 114818334Speter adapters = i; 114918334Speter 115018334Speter /* call VESA BIOS */ 115118334Speter vesa_adp = adp; 115218334Speter if (vesa_bios_init()) { 115318334Speter vesa_adp = NULL; 115418334Speter return (ENXIO); 115518334Speter } 115618334Speter vesa_adp->va_flags |= V_ADP_VESA; 115718334Speter 115818334Speter /* remove conflicting modes if we have more than one adapter */ 115918334Speter if (adapters > 1) { 116018334Speter vesa_clear_modes(vesa_vmode, 116118334Speter (vesa_adp->va_flags & V_ADP_COLOR) ? 116218334Speter V_INFO_COLOR : 0); 116318334Speter } 116418334Speter 116518334Speter if ((error = vesa_load_ioctl()) == 0) { 116618334Speter prevvidsw = vidsw[vesa_adp->va_index]; 116718334Speter vidsw[vesa_adp->va_index] = &vesavidsw; 116818334Speter vesa_init_done = TRUE; 116918334Speter } else { 117018334Speter vesa_adp = NULL; 117118334Speter return (error); 117250397Sobrien } 117318334Speter 117418334Speter return (0); 117550397Sobrien} 117650397Sobrien 117750397Sobrien#if 0 117850397Sobrienstatic int 117918334Spetervesa_nop(void) 118018334Speter{ 118118334Speter 118218334Speter return (0); 118318334Speter} 118418334Speter#endif 118518334Speter 118618334Speterstatic int 118718334Spetervesa_error(void) 118818334Speter{ 118918334Speter 119018334Speter return (1); 119118334Speter} 119218334Speter 119318334Speterstatic int 119418334Spetervesa_probe(int unit, video_adapter_t **adpp, void *arg, int flags) 119518334Speter{ 119618334Speter 119718334Speter return ((*prevvidsw->probe)(unit, adpp, arg, flags)); 119818334Speter} 119918334Speter 120018334Speterstatic int 120118334Spetervesa_init(int unit, video_adapter_t *adp, int flags) 120218334Speter{ 120318334Speter 120418334Speter return ((*prevvidsw->init)(unit, adp, flags)); 120518334Speter} 120618334Speter 120718334Speterstatic int 120818334Spetervesa_get_info(video_adapter_t *adp, int mode, video_info_t *info) 120918334Speter{ 121018334Speter int i; 121118334Speter 121218334Speter if ((*prevvidsw->get_info)(adp, mode, info) == 0) 121318334Speter return (0); 121450397Sobrien 121550397Sobrien if (adp != vesa_adp) 121650397Sobrien return (1); 121750397Sobrien 121850397Sobrien mode = vesa_map_gen_mode_num(vesa_adp->va_type, 121950397Sobrien vesa_adp->va_flags & V_ADP_COLOR, mode); 122018334Speter for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) { 122118334Speter if (vesa_vmode[i].vi_mode == NA) 122218334Speter continue; 122318334Speter if (vesa_vmode[i].vi_mode == mode) { 122418334Speter *info = vesa_vmode[i]; 122518334Speter return (0); 122618334Speter } 122718334Speter } 122818334Speter return (1); 122918334Speter} 123018334Speter 123118334Speterstatic int 123218334Spetervesa_query_mode(video_adapter_t *adp, video_info_t *info) 123318334Speter{ 123418334Speter int i; 123518334Speter 123618334Speter if ((*prevvidsw->query_mode)(adp, info) == 0) 123718334Speter return (0); 123818334Speter if (adp != vesa_adp) 123918334Speter return (ENODEV); 124018334Speter 124118334Speter for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) { 124218334Speter if ((info->vi_width != 0) 124318334Speter && (info->vi_width != vesa_vmode[i].vi_width)) 124418334Speter continue; 124518334Speter if ((info->vi_height != 0) 124618334Speter && (info->vi_height != vesa_vmode[i].vi_height)) 124718334Speter continue; 124818334Speter if ((info->vi_cwidth != 0) 124918334Speter && (info->vi_cwidth != vesa_vmode[i].vi_cwidth)) 125018334Speter continue; 125118334Speter if ((info->vi_cheight != 0) 125218334Speter && (info->vi_cheight != vesa_vmode[i].vi_cheight)) 125318334Speter continue; 125418334Speter if ((info->vi_depth != 0) 125518334Speter && (info->vi_depth != vesa_vmode[i].vi_depth)) 125618334Speter continue; 125718334Speter if ((info->vi_planes != 0) 125818334Speter && (info->vi_planes != vesa_vmode[i].vi_planes)) 125918334Speter continue; 126018334Speter /* pixel format, memory model */ 126118334Speter if ((info->vi_flags != 0) 126218334Speter && (info->vi_flags != vesa_vmode[i].vi_flags)) 126350397Sobrien continue; 126450397Sobrien *info = vesa_vmode[i]; 126550397Sobrien return (0); 126618334Speter } 126718334Speter return (ENODEV); 126818334Speter} 126918334Speter 127018334Speterstatic int 127118334Spetervesa_set_mode(video_adapter_t *adp, int mode) 127218334Speter{ 127318334Speter video_info_t info; 127418334Speter 127518334Speter if (adp != vesa_adp) 127618334Speter return ((*prevvidsw->set_mode)(adp, mode)); 127718334Speter 127818334Speter mode = vesa_map_gen_mode_num(adp->va_type, 127918334Speter adp->va_flags & V_ADP_COLOR, mode); 128018334Speter#if VESA_DEBUG > 0 128118334Speter printf("VESA: set_mode(): %d(%x) -> %d(%x)\n", 128218334Speter adp->va_mode, adp->va_mode, mode, mode); 128318334Speter#endif 128418334Speter /* 128518334Speter * If the current mode is a VESA mode and the new mode is not, 128618334Speter * restore the state of the adapter first by setting one of the 128718334Speter * standard VGA mode, so that non-standard, extended SVGA registers 128818334Speter * are set to the state compatible with the standard VGA modes. 128918334Speter * Otherwise (*prevvidsw->set_mode)() may not be able to set up 129018334Speter * the new mode correctly. 129118334Speter */ 129218334Speter if (VESA_MODE(adp->va_mode)) { 129318334Speter if (!VESA_MODE(mode) && 129418334Speter (*prevvidsw->get_info)(adp, mode, &info) == 0) { 129518334Speter if ((adp->va_flags & V_ADP_DAC8) != 0) { 129618334Speter vesa_bios_set_dac(6); 129718334Speter adp->va_flags &= ~V_ADP_DAC8; 129818334Speter } 129918334Speter int10_set_mode(adp->va_initial_bios_mode); 130018334Speter if (adp->va_info.vi_flags & V_INFO_LINEAR) 130118334Speter pmap_unmapdev(adp->va_buffer, 130218334Speter vesa_adp_info->v_memsize * 64 * 1024); 130318334Speter /* 130418334Speter * Once (*prevvidsw->get_info)() succeeded, 130518334Speter * (*prevvidsw->set_mode)() below won't fail... 130618334Speter */ 130718334Speter } 130818334Speter } 130918334Speter 131018334Speter /* we may not need to handle this mode after all... */ 131118334Speter if (!VESA_MODE(mode) && (*prevvidsw->set_mode)(adp, mode) == 0) 131218334Speter return (0); 131318334Speter 131418334Speter /* is the new mode supported? */ 131518334Speter if (vesa_get_info(adp, mode, &info)) 131618334Speter return (1); 131718334Speter /* assert(VESA_MODE(mode)); */ 131818334Speter 131918334Speter#if VESA_DEBUG > 0 132018334Speter printf("VESA: about to set a VESA mode...\n"); 132118334Speter#endif 132218334Speter /* don't use the linear frame buffer for text modes. XXX */ 132318334Speter if (!(info.vi_flags & V_INFO_GRAPHICS)) 132418334Speter info.vi_flags &= ~V_INFO_LINEAR; 132518334Speter 132618334Speter if ((info.vi_flags & V_INFO_LINEAR) != 0) 132718334Speter mode |= 0x4000; 132818334Speter if (vesa_bios_set_mode(mode | 0x8000)) 132952284Sobrien return (1); 133018334Speter 133118334Speter /* Palette format is reset by the above VBE function call. */ 133218334Speter adp->va_flags &= ~V_ADP_DAC8; 133318334Speter 133418334Speter if ((vesa_adp_info->v_flags & V_DAC8) != 0 && 133518334Speter (info.vi_flags & V_INFO_GRAPHICS) != 0 && 133618334Speter vesa_bios_set_dac(8) > 6) 133718334Speter adp->va_flags |= V_ADP_DAC8; 133818334Speter 133918334Speter if (adp->va_info.vi_flags & V_INFO_LINEAR) 134018334Speter pmap_unmapdev(adp->va_buffer, 134118334Speter vesa_adp_info->v_memsize * 64 * 1024); 134218334Speter 134318334Speter#if VESA_DEBUG > 0 134418334Speter printf("VESA: mode set!\n"); 134518334Speter#endif 134618334Speter vesa_adp->va_mode = mode & 0x1ff; /* Mode number is 9-bit. */ 134718334Speter vesa_adp->va_flags &= ~V_ADP_COLOR; 134818334Speter vesa_adp->va_flags |= 134918334Speter (info.vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; 135018334Speter vesa_adp->va_crtc_addr = 135118334Speter (vesa_adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; 135250397Sobrien 135318334Speter vesa_adp->va_line_width = info.vi_buffer_size / info.vi_height; 135418334Speter if ((info.vi_flags & V_INFO_GRAPHICS) != 0) 135518334Speter vesa_adp->va_line_width /= info.vi_planes; 135618334Speter 135718334Speter#ifdef MODE_TABLE_BROKEN 135818334Speter /* If VBE function returns bigger bytes per scan line, use it. */ 135918334Speter { 136018334Speter int bpsl = vesa_bios_get_line_length(); 136118334Speter if (bpsl > vesa_adp->va_line_width) { 136218334Speter vesa_adp->va_line_width = bpsl; 136318334Speter info.vi_buffer_size = bpsl * info.vi_height; 136418334Speter if ((info.vi_flags & V_INFO_GRAPHICS) != 0) 136518334Speter info.vi_buffer_size *= info.vi_planes; 136618334Speter } 136718334Speter } 136818334Speter#endif 136918334Speter 137018334Speter if (info.vi_flags & V_INFO_LINEAR) { 137118334Speter#if VESA_DEBUG > 1 137218334Speter printf("VESA: setting up LFB\n"); 137318334Speter#endif 137418334Speter vesa_adp->va_buffer = 137518334Speter (vm_offset_t)pmap_mapdev_attr(info.vi_buffer, 137618334Speter vesa_adp_info->v_memsize * 64 * 1024, PAT_WRITE_COMBINING); 137718334Speter vesa_adp->va_window = vesa_adp->va_buffer; 137818334Speter vesa_adp->va_window_size = info.vi_buffer_size / info.vi_planes; 137918334Speter vesa_adp->va_window_gran = info.vi_buffer_size / info.vi_planes; 138018334Speter } else { 138118334Speter vesa_adp->va_buffer = 0; 138218334Speter vesa_adp->va_window = (vm_offset_t)x86bios_offset(info.vi_window); 138318334Speter vesa_adp->va_window_size = info.vi_window_size; 138418334Speter vesa_adp->va_window_gran = info.vi_window_gran; 138518334Speter } 138618334Speter vesa_adp->va_buffer_size = info.vi_buffer_size; 138718334Speter vesa_adp->va_window_orig = 0; 138818334Speter vesa_adp->va_disp_start.x = 0; 138918334Speter vesa_adp->va_disp_start.y = 0; 139018334Speter#if VESA_DEBUG > 0 139118334Speter printf("vesa_set_mode(): vi_width:%d, line_width:%d\n", 139218334Speter info.vi_width, vesa_adp->va_line_width); 139318334Speter#endif 139418334Speter bcopy(&info, &vesa_adp->va_info, sizeof(vesa_adp->va_info)); 139518334Speter 139618334Speter /* move hardware cursor out of the way */ 139718334Speter (*vidsw[vesa_adp->va_index]->set_hw_cursor)(vesa_adp, -1, -1); 139818334Speter 139918334Speter return (0); 140018334Speter} 140118334Speter 140218334Speterstatic int 140318334Spetervesa_save_font(video_adapter_t *adp, int page, int fontsize, int fontwidth, 140418334Speter u_char *data, int ch, int count) 140518334Speter{ 140618334Speter 140718334Speter return ((*prevvidsw->save_font)(adp, page, fontsize, fontwidth, data, 140818334Speter ch, count)); 140918334Speter} 141018334Speter 141118334Speterstatic int 141218334Spetervesa_load_font(video_adapter_t *adp, int page, int fontsize, int fontwidth, 141318334Speter u_char *data, int ch, int count) 141418334Speter{ 141518334Speter 141618334Speter return ((*prevvidsw->load_font)(adp, page, fontsize, fontwidth, data, 141718334Speter ch, count)); 141818334Speter} 141918334Speter 142018334Speterstatic int 142118334Spetervesa_show_font(video_adapter_t *adp, int page) 142218334Speter{ 142318334Speter 142418334Speter return ((*prevvidsw->show_font)(adp, page)); 142518334Speter} 142618334Speter 142718334Speterstatic int 142818334Spetervesa_save_palette(video_adapter_t *adp, u_char *palette) 142918334Speter{ 143018334Speter int bits; 143118334Speter 143218334Speter if (adp == vesa_adp && VESA_MODE(adp->va_mode)) { 143318334Speter bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6; 143418334Speter if (vesa_bios_save_palette(0, 256, palette, bits) == 0) 143518334Speter return (0); 143618334Speter } 143718334Speter 143818334Speter return ((*prevvidsw->save_palette)(adp, palette)); 143918334Speter} 144018334Speter 144118334Speterstatic int 144218334Spetervesa_load_palette(video_adapter_t *adp, u_char *palette) 144318334Speter{ 144418334Speter int bits; 144518334Speter 144618334Speter if (adp == vesa_adp && VESA_MODE(adp->va_mode)) { 144718334Speter bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6; 144818334Speter if (vesa_bios_load_palette(0, 256, palette, bits) == 0) 144918334Speter return (0); 145018334Speter } 145118334Speter 145218334Speter return ((*prevvidsw->load_palette)(adp, palette)); 145318334Speter} 145418334Speter 145518334Speterstatic int 145618334Spetervesa_set_border(video_adapter_t *adp, int color) 145718334Speter{ 145818334Speter 145918334Speter return ((*prevvidsw->set_border)(adp, color)); 146018334Speter} 146118334Speter 146218334Speterstatic int 146318334Spetervesa_save_state(video_adapter_t *adp, void *p, size_t size) 146418334Speter{ 146518334Speter vm_offset_t buf; 146618334Speter size_t bsize; 146718334Speter 146818334Speter if (adp != vesa_adp || vesa_state_buf_size == 0) 146918334Speter return ((*prevvidsw->save_state)(adp, p, size)); 147018334Speter 147118334Speter if (size == 0) 147218334Speter return (offsetof(adp_state_t, regs) + vesa_state_buf_size); 147318334Speter if (size < (offsetof(adp_state_t, regs) + vesa_state_buf_size)) 147418334Speter return (EINVAL); 147518334Speter 147618334Speter buf = adp->va_buffer; 147718334Speter if (buf != 0) { 147818334Speter bsize = adp->va_buffer_size; 147918334Speter vesa_vmem_buf = malloc(bsize, M_DEVBUF, M_NOWAIT); 148018334Speter if (vesa_vmem_buf != NULL) 148118334Speter bcopy((void *)buf, vesa_vmem_buf, bsize); 148218334Speter } else 148318334Speter vesa_vmem_buf = NULL; 148418334Speter ((adp_state_t *)p)->sig = V_STATE_SIG; 148518334Speter return (vesa_bios_save_restore(STATE_SAVE, ((adp_state_t *)p)->regs)); 148650397Sobrien} 148750397Sobrien 148850397Sobrienstatic int 148950397Sobrienvesa_load_state(video_adapter_t *adp, void *p) 149050397Sobrien{ 149150397Sobrien vm_offset_t buf; 149250397Sobrien size_t bsize; 149350397Sobrien int mode; 149418334Speter 149518334Speter if (adp != vesa_adp) 149618334Speter return ((*prevvidsw->load_state)(adp, p)); 149718334Speter 149818334Speter /* Try BIOS POST to restore a sane state. */ 149918334Speter (void)vesa_bios_post(); 150018334Speter bsize = adp->va_buffer_size; 150118334Speter mode = adp->va_mode; 150218334Speter (void)vesa_set_mode(adp, adp->va_initial_mode); 150318334Speter if (mode != adp->va_initial_mode) 150418334Speter (void)vesa_set_mode(adp, mode); 150550397Sobrien 150650397Sobrien if (((adp_state_t *)p)->sig != V_STATE_SIG) 150718334Speter return ((*prevvidsw->load_state)(adp, p)); 150818334Speter if (vesa_vmem_buf != NULL) { 150918334Speter buf = adp->va_buffer; 151018334Speter if (buf != 0) 151118334Speter bcopy(vesa_vmem_buf, (void *)buf, bsize); 151218334Speter free(vesa_vmem_buf, M_DEVBUF); 151318334Speter } 151418334Speter return (vesa_bios_save_restore(STATE_LOAD, ((adp_state_t *)p)->regs)); 151518334Speter} 151618334Speter 151718334Speter#if 0 151818334Speterstatic int 151918334Spetervesa_get_origin(video_adapter_t *adp, off_t *offset) 152018334Speter{ 152118334Speter x86regs_t regs; 152218334Speter 152318334Speter x86bios_init_regs(®s); 152418334Speter regs.R_AX = 0x4f05; 152518334Speter regs.R_BL = 0x10; 152618334Speter 152718334Speter x86bios_intr(®s, 0x10); 152818334Speter 152918334Speter if (regs.R_AX != 0x004f) 153018334Speter return (1); 153118334Speter *offset = regs.DX * adp->va_window_gran; 153218334Speter 153318334Speter return (0); 153418334Speter} 153518334Speter#endif 153618334Speter 153718334Speterstatic int 153818334Spetervesa_set_origin(video_adapter_t *adp, off_t offset) 153918334Speter{ 154018334Speter x86regs_t regs; 154118334Speter 154218334Speter /* 154318334Speter * This function should return as quickly as possible to 154418334Speter * maintain good performance of the system. For this reason, 154518334Speter * error checking is kept minimal and let the VESA BIOS to 154618334Speter * detect error. 154718334Speter */ 154818334Speter if (adp != vesa_adp) 154918334Speter return ((*prevvidsw->set_win_org)(adp, offset)); 155018334Speter 155118334Speter /* if this is a linear frame buffer, do nothing */ 155218334Speter if (adp->va_info.vi_flags & V_INFO_LINEAR) 155318334Speter return (0); 155418334Speter /* XXX */ 155518334Speter if (adp->va_window_gran == 0) 155618334Speter return (1); 155718334Speter 155818334Speter x86bios_init_regs(®s); 155918334Speter regs.R_AX = 0x4f05; 156018334Speter regs.R_DX = offset / adp->va_window_gran; 156118334Speter 156218334Speter x86bios_intr(®s, 0x10); 156318334Speter 156418334Speter if (regs.R_AX != 0x004f) 156518334Speter return (1); 156618334Speter 156718334Speter x86bios_init_regs(®s); 156818334Speter regs.R_AX = 0x4f05; 156918334Speter regs.R_BL = 1; 157018334Speter regs.R_DX = offset / adp->va_window_gran; 157118334Speter x86bios_intr(®s, 0x10); 157218334Speter 157318334Speter adp->va_window_orig = (offset/adp->va_window_gran)*adp->va_window_gran; 157418334Speter return (0); /* XXX */ 157518334Speter} 157618334Speter 157718334Speterstatic int 157818334Spetervesa_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 157918334Speter{ 158018334Speter 158118334Speter return ((*prevvidsw->read_hw_cursor)(adp, col, row)); 158218334Speter} 158318334Speter 158418334Speterstatic int 158518334Spetervesa_set_hw_cursor(video_adapter_t *adp, int col, int row) 158618334Speter{ 158718334Speter 158818334Speter return ((*prevvidsw->set_hw_cursor)(adp, col, row)); 158918334Speter} 159018334Speter 159118334Speterstatic int 159218334Spetervesa_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 159318334Speter int celsize, int blink) 159418334Speter{ 159518334Speter 159618334Speter return ((*prevvidsw->set_hw_cursor_shape)(adp, base, height, celsize, 159750397Sobrien blink)); 159850397Sobrien} 159918334Speter 160018334Speterstatic int 160118334Spetervesa_blank_display(video_adapter_t *adp, int mode) 160218334Speter{ 160318334Speter 160418334Speter /* XXX: use VESA DPMS */ 160518334Speter return ((*prevvidsw->blank_display)(adp, mode)); 160618334Speter} 160718334Speter 160818334Speterstatic int 160918334Spetervesa_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr, 161018334Speter int prot, vm_memattr_t *memattr) 161118334Speter{ 161218334Speter 161318334Speter#if VESA_DEBUG > 0 161418334Speter printf("vesa_mmap(): window:0x%tx, buffer:0x%tx, offset:0x%jx\n", 161518334Speter adp->va_info.vi_window, adp->va_info.vi_buffer, offset); 161618334Speter#endif 161718334Speter 161818334Speter if ((adp == vesa_adp) && 161918334Speter (adp->va_info.vi_flags & V_INFO_LINEAR) != 0) { 162018334Speter /* va_window_size == va_buffer_size/vi_planes */ 162118334Speter /* XXX: is this correct? */ 162218334Speter if (offset > adp->va_window_size - PAGE_SIZE) 162318334Speter return (-1); 162418334Speter *paddr = adp->va_info.vi_buffer + offset; 162518334Speter return (0); 162618334Speter } 162718334Speter return ((*prevvidsw->mmap)(adp, offset, paddr, prot, memattr)); 162818334Speter} 162918334Speter 163018334Speterstatic int 163118334Spetervesa_clear(video_adapter_t *adp) 163218334Speter{ 163318334Speter 163418334Speter return ((*prevvidsw->clear)(adp)); 163518334Speter} 163618334Speter 163718334Speterstatic int 163818334Spetervesa_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 163918334Speter{ 164018334Speter 164118334Speter return ((*prevvidsw->fill_rect)(adp, val, x, y, cx, cy)); 164218334Speter} 164318334Speter 164418334Speterstatic int 164518334Spetervesa_bitblt(video_adapter_t *adp,...) 164618334Speter{ 164718334Speter 164818334Speter /* FIXME */ 164918334Speter return (1); 165018334Speter} 165118334Speter 165218334Speterstatic int 165318334Speterget_palette(video_adapter_t *adp, int base, int count, 165418334Speter u_char *red, u_char *green, u_char *blue, u_char *trans) 165518334Speter{ 165618334Speter u_char *r; 165718334Speter u_char *g; 165818334Speter u_char *b; 165918334Speter int bits; 166018334Speter int error; 166118334Speter 166218334Speter if (base < 0 || base >= 256 || count < 0 || count > 256) 166318334Speter return (1); 166418334Speter if ((base + count) > 256) 166518334Speter return (1); 166618334Speter if (!VESA_MODE(adp->va_mode)) 166718334Speter return (1); 166818334Speter 166918334Speter bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6; 167018334Speter r = malloc(count * 3, M_DEVBUF, M_WAITOK); 167118334Speter g = r + count; 167218334Speter b = g + count; 167318334Speter error = vesa_bios_save_palette2(base, count, r, g, b, bits); 167418334Speter if (error == 0) { 167518334Speter copyout(r, red, count); 167618334Speter copyout(g, green, count); 167718334Speter copyout(b, blue, count); 167818334Speter if (trans != NULL) { 167918334Speter bzero(r, count); 168018334Speter copyout(r, trans, count); 168118334Speter } 168218334Speter } 168318334Speter free(r, M_DEVBUF); 168418334Speter 168518334Speter return (error); 168618334Speter} 168718334Speter 168818334Speterstatic int 168918334Speterset_palette(video_adapter_t *adp, int base, int count, 169018334Speter u_char *red, u_char *green, u_char *blue, u_char *trans) 169118334Speter{ 169218334Speter u_char *r; 169318334Speter u_char *g; 169418334Speter u_char *b; 169518334Speter int bits; 169618334Speter int error; 169718334Speter 169818334Speter if (base < 0 || base >= 256 || count < 0 || count > 256) 169918334Speter return (1); 170018334Speter if ((base + count) > 256) 170118334Speter return (1); 170218334Speter if (!VESA_MODE(adp->va_mode)) 170318334Speter return (1); 170418334Speter 170518334Speter bits = (adp->va_flags & V_ADP_DAC8) != 0 ? 8 : 6; 170618334Speter r = malloc(count * 3, M_DEVBUF, M_WAITOK); 170718334Speter g = r + count; 170818334Speter b = g + count; 170918334Speter copyin(red, r, count); 171018334Speter copyin(green, g, count); 171118334Speter copyin(blue, b, count); 171218334Speter 171318334Speter error = vesa_bios_load_palette2(base, count, r, g, b, bits); 171418334Speter free(r, M_DEVBUF); 171518334Speter 171618334Speter return (error); 171718334Speter} 171818334Speter 171918334Speterstatic int 172018334Spetervesa_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) 172118334Speter{ 172218334Speter int bytes; 172318334Speter 172418334Speter if (adp != vesa_adp) 172518334Speter return ((*prevvidsw->ioctl)(adp, cmd, arg)); 172618334Speter 172718334Speter switch (cmd) { 172818334Speter case FBIO_SETWINORG: /* set frame buffer window origin */ 172918334Speter if (!VESA_MODE(adp->va_mode)) 173018334Speter return (*prevvidsw->ioctl)(adp, cmd, arg); 173118334Speter return (vesa_set_origin(adp, *(off_t *)arg) ? ENODEV : 0); 173218334Speter 173318334Speter case FBIO_SETDISPSTART: /* set display start address */ 173418334Speter if (!VESA_MODE(adp->va_mode)) 173518334Speter return ((*prevvidsw->ioctl)(adp, cmd, arg)); 173618334Speter if (vesa_bios_set_start(((video_display_start_t *)arg)->x, 173718334Speter ((video_display_start_t *)arg)->y)) 173818334Speter return (ENODEV); 173918334Speter adp->va_disp_start.x = ((video_display_start_t *)arg)->x; 174018334Speter adp->va_disp_start.y = ((video_display_start_t *)arg)->y; 174118334Speter return (0); 174218334Speter 174318334Speter case FBIO_SETLINEWIDTH: /* set line length in pixel */ 174418334Speter if (!VESA_MODE(adp->va_mode)) 174518334Speter return ((*prevvidsw->ioctl)(adp, cmd, arg)); 174618334Speter if (vesa_bios_set_line_length(*(u_int *)arg, &bytes, NULL)) 174718334Speter return (ENODEV); 174818334Speter adp->va_line_width = bytes; 174918334Speter#if VESA_DEBUG > 1 175018334Speter printf("new line width:%d\n", adp->va_line_width); 175118334Speter#endif 175218334Speter return (0); 175318334Speter 175418334Speter case FBIO_GETPALETTE: /* get color palette */ 175518334Speter if (get_palette(adp, ((video_color_palette_t *)arg)->index, 175618334Speter ((video_color_palette_t *)arg)->count, 175718334Speter ((video_color_palette_t *)arg)->red, 175818334Speter ((video_color_palette_t *)arg)->green, 175918334Speter ((video_color_palette_t *)arg)->blue, 176018334Speter ((video_color_palette_t *)arg)->transparent)) 176118334Speter return ((*prevvidsw->ioctl)(adp, cmd, arg)); 176218334Speter return (0); 176318334Speter 176418334Speter 176518334Speter case FBIO_SETPALETTE: /* set color palette */ 176650397Sobrien if (set_palette(adp, ((video_color_palette_t *)arg)->index, 176718334Speter ((video_color_palette_t *)arg)->count, 176818334Speter ((video_color_palette_t *)arg)->red, 176918334Speter ((video_color_palette_t *)arg)->green, 177018334Speter ((video_color_palette_t *)arg)->blue, 177118334Speter ((video_color_palette_t *)arg)->transparent)) 177218334Speter return ((*prevvidsw->ioctl)(adp, cmd, arg)); 177318334Speter return (0); 177418334Speter 177518334Speter case FBIOGETCMAP: /* get color palette */ 177618334Speter if (get_palette(adp, ((struct fbcmap *)arg)->index, 177718334Speter ((struct fbcmap *)arg)->count, 177818334Speter ((struct fbcmap *)arg)->red, 177918334Speter ((struct fbcmap *)arg)->green, 178018334Speter ((struct fbcmap *)arg)->blue, NULL)) 178118334Speter return ((*prevvidsw->ioctl)(adp, cmd, arg)); 178218334Speter return (0); 178318334Speter 178418334Speter case FBIOPUTCMAP: /* set color palette */ 178518334Speter if (set_palette(adp, ((struct fbcmap *)arg)->index, 178618334Speter ((struct fbcmap *)arg)->count, 178718334Speter ((struct fbcmap *)arg)->red, 178818334Speter ((struct fbcmap *)arg)->green, 178918334Speter ((struct fbcmap *)arg)->blue, NULL)) 179018334Speter return ((*prevvidsw->ioctl)(adp, cmd, arg)); 179118334Speter return (0); 179218334Speter 179318334Speter default: 179418334Speter return ((*prevvidsw->ioctl)(adp, cmd, arg)); 179518334Speter } 179618334Speter} 179718334Speter 179818334Speterstatic int 179918334Spetervesa_diag(video_adapter_t *adp, int level) 180018334Speter{ 180118334Speter int error; 180218334Speter 180318334Speter /* call the previous handler first */ 180418334Speter error = (*prevvidsw->diag)(adp, level); 180518334Speter if (error) 180618334Speter return (error); 180718334Speter 180818334Speter if (adp != vesa_adp) 180918334Speter return (1); 181018334Speter 181118334Speter if (level <= 0) 181218334Speter return (0); 181318334Speter 181418334Speter return (0); 181518334Speter} 181618334Speter 181718334Speterstatic int 181818334Spetervesa_bios_info(int level) 181918334Speter{ 182018334Speter#if VESA_DEBUG > 1 182118334Speter struct vesa_mode vmode; 182218334Speter int i; 182318334Speter#endif 182418334Speter uint16_t vers; 182518334Speter 182618334Speter vers = vesa_adp_info->v_version; 182718334Speter 182818334Speter if (bootverbose) { 182918334Speter /* general adapter information */ 183018334Speter printf( 183118334Speter "VESA: v%d.%d, %dk memory, flags:0x%x, mode table:%p (%x)\n", 183218334Speter (vers >> 12) * 10 + ((vers & 0x0f00) >> 8), 183318334Speter ((vers & 0x00f0) >> 4) * 10 + (vers & 0x000f), 183418334Speter vesa_adp_info->v_memsize * 64, vesa_adp_info->v_flags, 183518334Speter vesa_vmodetab, vesa_adp_info->v_modetable); 183618334Speter 183718334Speter /* OEM string */ 183818334Speter if (vesa_oemstr != NULL) 183918334Speter printf("VESA: %s\n", vesa_oemstr); 184018334Speter } 184118334Speter 184218334Speter if (level <= 0) 184318334Speter return (0); 184418334Speter 184518334Speter if (vers >= 0x0200 && bootverbose) { 184618334Speter /* vender name, product name, product revision */ 184718334Speter printf("VESA: %s %s %s\n", 184818334Speter (vesa_venderstr != NULL) ? vesa_venderstr : "unknown", 184918334Speter (vesa_prodstr != NULL) ? vesa_prodstr : "unknown", 185018334Speter (vesa_revstr != NULL) ? vesa_revstr : "?"); 185118334Speter } 185218334Speter 185318334Speter#if VESA_DEBUG > 1 185418334Speter /* mode information */ 185518334Speter for (i = 0; 185618334Speter (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) 185718334Speter && (vesa_vmodetab[i] != 0xffff); ++i) { 185818334Speter if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode, M_NOWAIT)) 185918334Speter continue; 186018334Speter 186118334Speter /* print something for diagnostic purpose */ 186218334Speter printf("VESA: mode:0x%03x, flags:0x%04x", 186318334Speter vesa_vmodetab[i], vmode.v_modeattr); 186418334Speter if (vmode.v_modeattr & V_MODEOPTINFO) { 186518334Speter if (vmode.v_modeattr & V_MODEGRAPHICS) { 186618334Speter printf(", G %dx%dx%d %d, ", 186718334Speter vmode.v_width, vmode.v_height, 186818334Speter vmode.v_bpp, vmode.v_planes); 186918334Speter } else { 187018334Speter printf(", T %dx%d, ", 187118334Speter vmode.v_width, vmode.v_height); 187218334Speter } 187318334Speter printf("font:%dx%d, ", 187418334Speter vmode.v_cwidth, vmode.v_cheight); 187518334Speter printf("pages:%d, mem:%d", 187618334Speter vmode.v_ipages + 1, vmode.v_memmodel); 187718334Speter } 187818334Speter if (vmode.v_modeattr & V_MODELFB) { 187918334Speter printf("\nVESA: LFB:0x%x, off:0x%x, off_size:0x%x", 188018334Speter vmode.v_lfb, vmode.v_offscreen, 188118334Speter vmode.v_offscreensize*1024); 188218334Speter } 188318334Speter printf("\n"); 188418334Speter printf("VESA: window A:0x%x (%x), window B:0x%x (%x), ", 188518334Speter vmode.v_waseg, vmode.v_waattr, 188618334Speter vmode.v_wbseg, vmode.v_wbattr); 188718334Speter printf("size:%dk, gran:%dk\n", 188818334Speter vmode.v_wsize, vmode.v_wgran); 188918334Speter } 189018334Speter#endif /* VESA_DEBUG > 1 */ 189118334Speter 189218334Speter return (0); 189318334Speter} 189418334Speter 189518334Speter/* module loading */ 189618334Speter 189718334Speterstatic int 189818334Spetervesa_load(void) 189918334Speter{ 190018334Speter int error; 190118334Speter 190218334Speter if (vesa_init_done) 190318334Speter return (0); 190418334Speter 190518334Speter mtx_init(&vesa_lock, "VESA lock", NULL, MTX_DEF); 190618334Speter 190718334Speter /* locate a VGA adapter */ 190818334Speter vesa_adp = NULL; 190918334Speter error = vesa_configure(0); 191018334Speter 191118334Speter if (error == 0) 191218334Speter vesa_bios_info(bootverbose); 191318334Speter 191418334Speter return (error); 191518334Speter} 191618334Speter 191718334Speterstatic int 191818334Spetervesa_unload(void) 191918334Speter{ 192018334Speter u_char palette[256*3]; 192118334Speter int error; 192218334Speter 192318334Speter /* if the adapter is currently in a VESA mode, don't unload */ 192418334Speter if ((vesa_adp != NULL) && VESA_MODE(vesa_adp->va_mode)) 192518334Speter return (EBUSY); 192618334Speter /* 192718334Speter * FIXME: if there is at least one vty which is in a VESA mode, 192818334Speter * we shouldn't be unloading! XXX 192918334Speter */ 193018334Speter 193118334Speter if ((error = vesa_unload_ioctl()) == 0) { 193218334Speter if (vesa_adp != NULL) { 193318334Speter if ((vesa_adp->va_flags & V_ADP_DAC8) != 0) { 193418334Speter vesa_bios_save_palette(0, 256, palette, 8); 193518334Speter vesa_bios_set_dac(6); 193618334Speter vesa_adp->va_flags &= ~V_ADP_DAC8; 193718334Speter vesa_bios_load_palette(0, 256, palette, 6); 193818334Speter } 193918334Speter vesa_adp->va_flags &= ~V_ADP_VESA; 194018334Speter vidsw[vesa_adp->va_index] = prevvidsw; 194118334Speter } 194218334Speter } 194318334Speter 194418334Speter vesa_bios_uninit(); 194518334Speter mtx_destroy(&vesa_lock); 194618334Speter 194718334Speter return (error); 194818334Speter} 194918334Speter 195018334Speterstatic int 195118334Spetervesa_mod_event(module_t mod, int type, void *data) 195218334Speter{ 195318334Speter 195418334Speter switch (type) { 195518334Speter case MOD_LOAD: 195618334Speter return (vesa_load()); 195718334Speter case MOD_UNLOAD: 195818334Speter return (vesa_unload()); 195918334Speter } 196018334Speter return (EOPNOTSUPP); 196118334Speter} 196218334Speter 196318334Speterstatic moduledata_t vesa_mod = { 196418334Speter "vesa", 196518334Speter vesa_mod_event, 196618334Speter NULL, 196718334Speter}; 196818334Speter 196918334SpeterDECLARE_MODULE(vesa, vesa_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); 197018334SpeterMODULE_DEPEND(vesa, x86bios, 1, 1, 1); 197118334Speter 197218334Speter#endif /* VGA_NO_MODE_CHANGE */ 197318334Speter