/*- * Copyright (c) 1998 Kazutaka YOKOTA and Michael Smith * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer as * the first lines of this file unmodified. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include __FBSDID("$FreeBSD$"); #include "opt_vga.h" #include "opt_vesa.h" #ifndef VGA_NO_MODE_CHANGE #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifndef __i386__ #include #else #include #endif #define VESA_VIA_CLE266 "VIA CLE266\r\n" #ifndef VESA_DEBUG #define VESA_DEBUG 0 #endif /* VESA video adapter state buffer stub */ struct adp_state { int sig; #define V_STATE_SIG 0x61736576 u_char regs[1]; }; typedef struct adp_state adp_state_t; /* VESA video adapter */ static video_adapter_t *vesa_adp = NULL; static int vesa_state_buf_size = 0; /* VESA functions */ #if 0 static int vesa_nop(void); #endif static int vesa_error(void); static vi_probe_t vesa_probe; static vi_init_t vesa_init; static vi_get_info_t vesa_get_info; static vi_query_mode_t vesa_query_mode; static vi_set_mode_t vesa_set_mode; static vi_save_font_t vesa_save_font; static vi_load_font_t vesa_load_font; static vi_show_font_t vesa_show_font; static vi_save_palette_t vesa_save_palette; static vi_load_palette_t vesa_load_palette; static vi_set_border_t vesa_set_border; static vi_save_state_t vesa_save_state; static vi_load_state_t vesa_load_state; static vi_set_win_org_t vesa_set_origin; static vi_read_hw_cursor_t vesa_read_hw_cursor; static vi_set_hw_cursor_t vesa_set_hw_cursor; static vi_set_hw_cursor_shape_t vesa_set_hw_cursor_shape; static vi_blank_display_t vesa_blank_display; static vi_mmap_t vesa_mmap; static vi_ioctl_t vesa_ioctl; static vi_clear_t vesa_clear; static vi_fill_rect_t vesa_fill_rect; static vi_bitblt_t vesa_bitblt; static vi_diag_t vesa_diag; static int vesa_bios_info(int level); static struct vm86context vesa_vmcontext; static video_switch_t vesavidsw = { vesa_probe, vesa_init, vesa_get_info, vesa_query_mode, vesa_set_mode, vesa_save_font, vesa_load_font, vesa_show_font, vesa_save_palette, vesa_load_palette, vesa_set_border, vesa_save_state, vesa_load_state, vesa_set_origin, vesa_read_hw_cursor, vesa_set_hw_cursor, vesa_set_hw_cursor_shape, vesa_blank_display, vesa_mmap, vesa_ioctl, vesa_clear, vesa_fill_rect, vesa_bitblt, vesa_error, vesa_error, vesa_diag, }; static video_switch_t *prevvidsw; /* VESA BIOS video modes */ #define VESA_MAXMODES 64 #define EOT (-1) #define NA (-2) #define MODE_TABLE_DELTA 8 static int vesa_vmode_max = 0; static video_info_t vesa_vmode_empty = { EOT }; static video_info_t *vesa_vmode = &vesa_vmode_empty; static int vesa_init_done = FALSE; static int has_vesa_bios = FALSE; static struct vesa_info *vesa_adp_info = NULL; static u_int16_t *vesa_vmodetab = NULL; static char *vesa_oemstr = NULL; static char *vesa_venderstr = NULL; static char *vesa_prodstr = NULL; static char *vesa_revstr = NULL; /* local macros and functions */ #define BIOS_SADDRTOLADDR(p) ((((p) & 0xffff0000) >> 12) + ((p) & 0x0000ffff)) static int int10_set_mode(int mode); static int vesa_bios_get_mode(int mode, struct vesa_mode *vmode); static int vesa_bios_set_mode(int mode); static int vesa_bios_get_dac(void); static int vesa_bios_set_dac(int bits); static int vesa_bios_save_palette(int start, int colors, u_char *palette, int bits); static int vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, int bits); static int vesa_bios_load_palette(int start, int colors, u_char *palette, int bits); #ifdef notyet static int vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, int bits); #endif #define STATE_SIZE 0 #define STATE_SAVE 1 #define STATE_LOAD 2 #define STATE_HW (1<<0) #define STATE_DATA (1<<1) #define STATE_DAC (1<<2) #define STATE_REG (1<<3) #define STATE_MOST (STATE_HW | STATE_DATA | STATE_REG) #define STATE_ALL (STATE_HW | STATE_DATA | STATE_DAC | STATE_REG) static int vesa_bios_state_buf_size(void); static int vesa_bios_save_restore(int code, void *p, size_t size); static int vesa_bios_get_line_length(void); static int vesa_bios_set_line_length(int pixel, int *bytes, int *lines); #if 0 static int vesa_bios_get_start(int *x, int *y); #endif static int vesa_bios_set_start(int x, int y); static int vesa_map_gen_mode_num(int type, int color, int mode); static int vesa_translate_flags(u_int16_t vflags); static int vesa_translate_mmodel(u_int8_t vmodel); static void *vesa_fix_ptr(u_int32_t p, u_int16_t seg, u_int16_t off, u_char *buf); static int vesa_bios_init(void); static void vesa_clear_modes(video_info_t *info, int color); static vm_offset_t vesa_map_buffer(u_int paddr, size_t size); static void vesa_unmap_buffer(vm_offset_t vaddr, size_t size); #if 0 static int vesa_get_origin(video_adapter_t *adp, off_t *offset); #endif static void dump_buffer(u_char *buf, size_t len) { int i; for(i = 0; i < len;) { printf("%02x ", buf[i]); if ((++i % 16) == 0) printf("\n"); } } /* INT 10 BIOS calls */ static int int10_set_mode(int mode) { struct vm86frame vmf; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x0000 | mode; vm86_intcall(0x10, &vmf); return 0; } /* VESA BIOS calls */ static int vesa_bios_get_mode(int mode, struct vesa_mode *vmode) { struct vm86frame vmf; u_char *buf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f01; vmf.vmf_ecx = mode; buf = (u_char *)vm86_getpage(&vesa_vmcontext, 1); vm86_getptr(&vesa_vmcontext, (vm_offset_t)buf, &vmf.vmf_es, &vmf.vmf_di); err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 1; bcopy(buf, vmode, sizeof(*vmode)); return 0; } static int vesa_bios_set_mode(int mode) { struct vm86frame vmf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f02; vmf.vmf_ebx = mode; err = vm86_intcall(0x10, &vmf); return ((err != 0) || (vmf.vmf_ax != 0x4f)); } static int vesa_bios_get_dac(void) { struct vm86frame vmf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f08; vmf.vmf_ebx = 1; /* get DAC width */ err = vm86_intcall(0x10, &vmf); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 6; /* XXX */ return ((vmf.vmf_ebx >> 8) & 0x00ff); } static int vesa_bios_set_dac(int bits) { struct vm86frame vmf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f08; vmf.vmf_ebx = (bits << 8); err = vm86_intcall(0x10, &vmf); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 6; /* XXX */ return ((vmf.vmf_ebx >> 8) & 0x00ff); } static int vesa_bios_save_palette(int start, int colors, u_char *palette, int bits) { struct vm86frame vmf; u_char *p; int err; int i; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f09; vmf.vmf_ebx = 1; /* get primary palette data */ vmf.vmf_ecx = colors; vmf.vmf_edx = start; p = (u_char *)vm86_getpage(&vesa_vmcontext, 1); vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di); err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 1; bits = 8 - bits; for (i = 0; i < colors; ++i) { palette[i*3] = p[i*4 + 2] << bits; palette[i*3 + 1] = p[i*4 + 1] << bits; palette[i*3 + 2] = p[i*4] << bits; } return 0; } static int vesa_bios_save_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, int bits) { struct vm86frame vmf; u_char *p; int err; int i; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f09; vmf.vmf_ebx = 1; /* get primary palette data */ vmf.vmf_ecx = colors; vmf.vmf_edx = start; p = (u_char *)vm86_getpage(&vesa_vmcontext, 1); vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di); err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 1; bits = 8 - bits; for (i = 0; i < colors; ++i) { r[i] = p[i*4 + 2] << bits; g[i] = p[i*4 + 1] << bits; b[i] = p[i*4] << bits; } return 0; } static int vesa_bios_load_palette(int start, int colors, u_char *palette, int bits) { struct vm86frame vmf; u_char *p; int err; int i; p = (u_char *)vm86_getpage(&vesa_vmcontext, 1); bits = 8 - bits; for (i = 0; i < colors; ++i) { p[i*4] = palette[i*3 + 2] >> bits; p[i*4 + 1] = palette[i*3 + 1] >> bits; p[i*4 + 2] = palette[i*3] >> bits; p[i*4 + 3] = 0; } bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f09; vmf.vmf_ebx = 0; /* set primary palette data */ vmf.vmf_ecx = colors; vmf.vmf_edx = start; vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di); err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); return ((err != 0) || (vmf.vmf_ax != 0x4f)); } #ifdef notyet static int vesa_bios_load_palette2(int start, int colors, u_char *r, u_char *g, u_char *b, int bits) { struct vm86frame vmf; u_char *p; int err; int i; p = (u_char *)vm86_getpage(&vesa_vmcontext, 1); bits = 8 - bits; for (i = 0; i < colors; ++i) { p[i*4] = b[i] >> bits; p[i*4 + 1] = g[i] >> bits; p[i*4 + 2] = r[i] >> bits; p[i*4 + 3] = 0; } bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f09; vmf.vmf_ebx = 0; /* set primary palette data */ vmf.vmf_ecx = colors; vmf.vmf_edx = start; vm86_getptr(&vesa_vmcontext, (vm_offset_t)p, &vmf.vmf_es, &vmf.vmf_di); err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); return ((err != 0) || (vmf.vmf_ax != 0x4f)); } #endif static int vesa_bios_state_buf_size(void) { struct vm86frame vmf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f04; vmf.vmf_ecx = STATE_MOST; vmf.vmf_edx = STATE_SIZE; err = vm86_intcall(0x10, &vmf); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 0; return vmf.vmf_bx*64; } static int vesa_bios_save_restore(int code, void *p, size_t size) { struct vm86frame vmf; u_char *buf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f04; vmf.vmf_ecx = STATE_MOST; vmf.vmf_edx = code; /* STATE_SAVE/STATE_LOAD */ buf = (u_char *)vm86_getpage(&vesa_vmcontext, 1); vm86_getptr(&vesa_vmcontext, (vm_offset_t)buf, &vmf.vmf_es, &vmf.vmf_bx); bcopy(p, buf, size); err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); return ((err != 0) || (vmf.vmf_ax != 0x4f)); } static int vesa_bios_get_line_length(void) { struct vm86frame vmf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f06; vmf.vmf_ebx = 1; /* get scan line length */ err = vm86_intcall(0x10, &vmf); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return -1; return vmf.vmf_bx; /* line length in bytes */ } static int vesa_bios_set_line_length(int pixel, int *bytes, int *lines) { struct vm86frame vmf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f06; vmf.vmf_ebx = 0; /* set scan line length in pixel */ vmf.vmf_ecx = pixel; err = vm86_intcall(0x10, &vmf); #if VESA_DEBUG > 1 printf("bx:%d, cx:%d, dx:%d\n", vmf.vmf_bx, vmf.vmf_cx, vmf.vmf_dx); #endif if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 1; if (bytes) *bytes = vmf.vmf_bx; if (lines) *lines = vmf.vmf_dx; return 0; } #if 0 static int vesa_bios_get_start(int *x, int *y) { struct vm86frame vmf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f07; vmf.vmf_ebx = 1; /* get display start */ err = vm86_intcall(0x10, &vmf); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 1; *x = vmf.vmf_cx; *y = vmf.vmf_dx; return 0; } #endif static int vesa_bios_set_start(int x, int y) { struct vm86frame vmf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f07; vmf.vmf_ebx = 0x80; /* set display start */ vmf.vmf_edx = y; vmf.vmf_ecx = x; err = vm86_intcall(0x10, &vmf); return ((err != 0) || (vmf.vmf_ax != 0x4f)); } /* map a generic video mode to a known mode */ static int vesa_map_gen_mode_num(int type, int color, int mode) { static struct { int from; int to; } mode_map[] = { { M_TEXT_132x25, M_VESA_C132x25 }, { M_TEXT_132x43, M_VESA_C132x43 }, { M_TEXT_132x50, M_VESA_C132x50 }, { M_TEXT_132x60, M_VESA_C132x60 }, }; int i; for (i = 0; i < sizeof(mode_map)/sizeof(mode_map[0]); ++i) { if (mode_map[i].from == mode) return mode_map[i].to; } return mode; } static int vesa_translate_flags(u_int16_t vflags) { static struct { u_int16_t mask; int set; int reset; } ftable[] = { { V_MODECOLOR, V_INFO_COLOR, 0 }, { V_MODEGRAPHICS, V_INFO_GRAPHICS, 0 }, { V_MODELFB, V_INFO_LINEAR, 0 }, }; int flags; int i; for (flags = 0, i = 0; i < sizeof(ftable)/sizeof(ftable[0]); ++i) { flags |= (vflags & ftable[i].mask) ? ftable[i].set : ftable[i].reset; } return flags; } static int vesa_translate_mmodel(u_int8_t vmodel) { static struct { u_int8_t vmodel; int mmodel; } mtable[] = { { V_MMTEXT, V_INFO_MM_TEXT }, { V_MMCGA, V_INFO_MM_CGA }, { V_MMHGC, V_INFO_MM_HGC }, { V_MMEGA, V_INFO_MM_PLANAR }, { V_MMPACKED, V_INFO_MM_PACKED }, { V_MMDIRCOLOR, V_INFO_MM_DIRECT }, }; int i; for (i = 0; mtable[i].mmodel >= 0; ++i) { if (mtable[i].vmodel == vmodel) return mtable[i].mmodel; } return V_INFO_MM_OTHER; } static void *vesa_fix_ptr(u_int32_t p, u_int16_t seg, u_int16_t off, u_char *buf) { if (p == 0) return NULL; if (((p >> 16) == seg) && ((p & 0xffff) >= off)) return (void *)(buf + ((p & 0xffff) - off)); else { p = BIOS_SADDRTOLADDR(p); return (void *)BIOS_PADDRTOVADDR(p); } } static int vesa_bios_init(void) { static u_char buf[512]; struct vm86frame vmf; struct vesa_mode vmode; video_info_t *p; u_char *vmbuf; int is_via_cle266; int modes; int err; int i; if (vesa_init_done) return 0; has_vesa_bios = FALSE; vesa_adp_info = NULL; vesa_vmode_max = 0; vesa_vmode[0].vi_mode = EOT; vmbuf = (u_char *)vm86_addpage(&vesa_vmcontext, 1, 0); bzero(&vmf, sizeof(vmf)); /* paranoia */ bcopy("VBE2", vmbuf, 4); /* try for VBE2 data */ vmf.vmf_eax = 0x4f00; vm86_getptr(&vesa_vmcontext, (vm_offset_t)vmbuf, &vmf.vmf_es, &vmf.vmf_di); err = vm86_datacall(0x10, &vmf, &vesa_vmcontext); if ((err != 0) || (vmf.vmf_ax != 0x4f) || bcmp("VESA", vmbuf, 4)) return 1; bcopy(vmbuf, buf, sizeof(buf)); vesa_adp_info = (struct vesa_info *)buf; if (bootverbose) { printf("VESA: information block\n"); dump_buffer(buf, 64); } if (vesa_adp_info->v_flags & V_NONVGA) return 1; if (vesa_adp_info->v_version < 0x0102) { printf("VESA: VBE version %d.%d is not supported; " "version 1.2 or later is required.\n", ((vesa_adp_info->v_version & 0xf000) >> 12) * 10 + ((vesa_adp_info->v_version & 0x0f00) >> 8), ((vesa_adp_info->v_version & 0x00f0) >> 4) * 10 + (vesa_adp_info->v_version & 0x000f)); return 1; } /* fix string ptrs */ vesa_oemstr = (char *)vesa_fix_ptr(vesa_adp_info->v_oemstr, vmf.vmf_es, vmf.vmf_di, buf); is_via_cle266 = strcmp(vesa_oemstr, VESA_VIA_CLE266) == 0; if (vesa_adp_info->v_version >= 0x0200) { vesa_venderstr = (char *)vesa_fix_ptr(vesa_adp_info->v_venderstr, vmf.vmf_es, vmf.vmf_di, buf); vesa_prodstr = (char *)vesa_fix_ptr(vesa_adp_info->v_prodstr, vmf.vmf_es, vmf.vmf_di, buf); vesa_revstr = (char *)vesa_fix_ptr(vesa_adp_info->v_revstr, vmf.vmf_es, vmf.vmf_di, buf); } /* obtain video mode information */ vesa_vmodetab = (u_int16_t *)vesa_fix_ptr(vesa_adp_info->v_modetable, vmf.vmf_es, vmf.vmf_di, buf); if (vesa_vmodetab == NULL) return 1; for (i = 0, modes = 0; (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) && (vesa_vmodetab[i] != 0xffff); ++i) { if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode)) continue; /* reject unsupported modes */ #if 0 if ((vmode.v_modeattr & (V_MODESUPP | V_MODEOPTINFO | V_MODENONVGA)) != (V_MODESUPP | V_MODEOPTINFO)) continue; #else if ((vmode.v_modeattr & V_MODEOPTINFO) == 0) { #if VESA_DEBUG > 1 printf( "Rejecting VESA %s mode: %d x %d x %d bpp attr = %x\n", vmode.v_modeattr & V_MODEGRAPHICS ? "graphics" : "text", vmode.v_width, vmode.v_height, vmode.v_bpp, vmode.v_modeattr); #endif continue; } #endif /* expand the array if necessary */ if (modes >= vesa_vmode_max) { vesa_vmode_max += MODE_TABLE_DELTA; p = malloc(sizeof(*vesa_vmode)*(vesa_vmode_max + 1), M_DEVBUF, M_WAITOK); #if VESA_DEBUG > 1 printf("vesa_bios_init(): modes:%d, vesa_mode_max:%d\n", modes, vesa_vmode_max); #endif if (modes > 0) { bcopy(vesa_vmode, p, sizeof(*vesa_vmode)*modes); free(vesa_vmode, M_DEVBUF); } vesa_vmode = p; } #if VESA_DEBUG > 1 printf("Found VESA %s mode: %d x %d x %d bpp\n", vmode.v_modeattr & V_MODEGRAPHICS ? "graphics" : "text", vmode.v_width, vmode.v_height, vmode.v_bpp); #endif if (is_via_cle266) { if ((vmode.v_width & 0xff00) >> 8 == vmode.v_height - 1) { vmode.v_width &= 0xff; vmode.v_waseg = 0xb8000 >> 4; } } /* copy some fields */ bzero(&vesa_vmode[modes], sizeof(vesa_vmode[modes])); vesa_vmode[modes].vi_mode = vesa_vmodetab[i]; vesa_vmode[modes].vi_width = vmode.v_width; vesa_vmode[modes].vi_height = vmode.v_height; vesa_vmode[modes].vi_depth = vmode.v_bpp; vesa_vmode[modes].vi_planes = vmode.v_planes; vesa_vmode[modes].vi_cwidth = vmode.v_cwidth; vesa_vmode[modes].vi_cheight = vmode.v_cheight; vesa_vmode[modes].vi_window = (u_int)vmode.v_waseg << 4; /* XXX window B */ vesa_vmode[modes].vi_window_size = vmode.v_wsize*1024; vesa_vmode[modes].vi_window_gran = vmode.v_wgran*1024; if (vmode.v_modeattr & V_MODELFB) vesa_vmode[modes].vi_buffer = vmode.v_lfb; else vesa_vmode[modes].vi_buffer = 0; /* XXX */ vesa_vmode[modes].vi_buffer_size = vesa_adp_info->v_memsize*64*1024; #if 0 if (vmode.v_offscreen > vmode.v_lfb) vesa_vmode[modes].vi_buffer_size = vmode.v_offscreen + vmode.v_offscreensize*1024 - vmode.v_lfb; else vesa_vmode[modes].vi_buffer_size = vmode.v_offscreen + vmode.v_offscreensize*1024 #endif vesa_vmode[modes].vi_mem_model = vesa_translate_mmodel(vmode.v_memmodel); vesa_vmode[modes].vi_pixel_fields[0] = 0; vesa_vmode[modes].vi_pixel_fields[1] = 0; vesa_vmode[modes].vi_pixel_fields[2] = 0; vesa_vmode[modes].vi_pixel_fields[3] = 0; vesa_vmode[modes].vi_pixel_fsizes[0] = 0; vesa_vmode[modes].vi_pixel_fsizes[1] = 0; vesa_vmode[modes].vi_pixel_fsizes[2] = 0; vesa_vmode[modes].vi_pixel_fsizes[3] = 0; if (vesa_vmode[modes].vi_mem_model == V_INFO_MM_PACKED) { vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7)/8; } else if (vesa_vmode[modes].vi_mem_model == V_INFO_MM_DIRECT) { vesa_vmode[modes].vi_pixel_size = (vmode.v_bpp + 7)/8; vesa_vmode[modes].vi_pixel_fields[0] = vmode.v_redfieldpos; vesa_vmode[modes].vi_pixel_fields[1] = vmode.v_greenfieldpos; vesa_vmode[modes].vi_pixel_fields[2] = vmode.v_bluefieldpos; vesa_vmode[modes].vi_pixel_fields[3] = vmode.v_resfieldpos; vesa_vmode[modes].vi_pixel_fsizes[0] = vmode.v_redmasksize; vesa_vmode[modes].vi_pixel_fsizes[1] = vmode.v_greenmasksize; vesa_vmode[modes].vi_pixel_fsizes[2] = vmode.v_bluemasksize; vesa_vmode[modes].vi_pixel_fsizes[3] = vmode.v_resmasksize; } else { vesa_vmode[modes].vi_pixel_size = 0; } vesa_vmode[modes].vi_flags = vesa_translate_flags(vmode.v_modeattr) | V_INFO_VESA; ++modes; } vesa_vmode[modes].vi_mode = EOT; if (bootverbose) printf("VESA: %d mode(s) found\n", modes); has_vesa_bios = (modes > 0); return (has_vesa_bios ? 0 : 1); } static void vesa_clear_modes(video_info_t *info, int color) { while (info->vi_mode != EOT) { if ((info->vi_flags & V_INFO_COLOR) != color) info->vi_mode = NA; ++info; } } static vm_offset_t vesa_map_buffer(u_int paddr, size_t size) { vm_offset_t vaddr; u_int off; off = paddr - trunc_page(paddr); vaddr = (vm_offset_t)pmap_mapdev(paddr - off, size + off); #if VESA_DEBUG > 1 printf("vesa_map_buffer: paddr:%x vaddr:%x size:%x off:%x\n", paddr, vaddr, size, off); #endif return (vaddr + off); } static void vesa_unmap_buffer(vm_offset_t vaddr, size_t size) { #if VESA_DEBUG > 1 printf("vesa_unmap_buffer: vaddr:%x size:%x\n", vaddr, size); #endif kmem_free(kernel_map, vaddr, size); } /* entry points */ static int vesa_configure(int flags) { video_adapter_t *adp; int adapters; int error; int i; if (vesa_init_done) return 0; if (flags & VIO_PROBE_ONLY) return 0; /* XXX */ /* * If the VESA module has already been loaded, abort loading * the module this time. */ for (i = 0; (adp = vid_get_adapter(i)) != NULL; ++i) { if (adp->va_flags & V_ADP_VESA) return ENXIO; if (adp->va_type == KD_VGA) break; } /* * The VGA adapter is not found. This is because either * 1) the VGA driver has not been initialized, or 2) the VGA card * is not present. If 1) is the case, we shall defer * initialization for now and try again later. */ if (adp == NULL) { vga_sub_configure = vesa_configure; return ENODEV; } /* count number of registered adapters */ for (++i; vid_get_adapter(i) != NULL; ++i) ; adapters = i; /* call VESA BIOS */ vesa_adp = adp; if (vesa_bios_init()) { vesa_adp = NULL; return ENXIO; } vesa_adp->va_flags |= V_ADP_VESA; /* remove conflicting modes if we have more than one adapter */ if (adapters > 1) { vesa_clear_modes(vesa_vmode, (vesa_adp->va_flags & V_ADP_COLOR) ? V_INFO_COLOR : 0); } if ((error = vesa_load_ioctl()) == 0) { prevvidsw = vidsw[vesa_adp->va_index]; vidsw[vesa_adp->va_index] = &vesavidsw; vesa_init_done = TRUE; } else { vesa_adp = NULL; return error; } return 0; } #if 0 static int vesa_nop(void) { return 0; } #endif static int vesa_error(void) { return 1; } static int vesa_probe(int unit, video_adapter_t **adpp, void *arg, int flags) { return (*prevvidsw->probe)(unit, adpp, arg, flags); } static int vesa_init(int unit, video_adapter_t *adp, int flags) { return (*prevvidsw->init)(unit, adp, flags); } static int vesa_get_info(video_adapter_t *adp, int mode, video_info_t *info) { int i; if ((*prevvidsw->get_info)(adp, mode, info) == 0) return 0; if (adp != vesa_adp) return 1; mode = vesa_map_gen_mode_num(vesa_adp->va_type, vesa_adp->va_flags & V_ADP_COLOR, mode); for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) { if (vesa_vmode[i].vi_mode == NA) continue; if (vesa_vmode[i].vi_mode == mode) { *info = vesa_vmode[i]; return 0; } } return 1; } static int vesa_query_mode(video_adapter_t *adp, video_info_t *info) { int i; if ((*prevvidsw->query_mode)(adp, info) == 0) return 0; if (adp != vesa_adp) return ENODEV; for (i = 0; vesa_vmode[i].vi_mode != EOT; ++i) { if ((info->vi_width != 0) && (info->vi_width != vesa_vmode[i].vi_width)) continue; if ((info->vi_height != 0) && (info->vi_height != vesa_vmode[i].vi_height)) continue; if ((info->vi_cwidth != 0) && (info->vi_cwidth != vesa_vmode[i].vi_cwidth)) continue; if ((info->vi_cheight != 0) && (info->vi_cheight != vesa_vmode[i].vi_cheight)) continue; if ((info->vi_depth != 0) && (info->vi_depth != vesa_vmode[i].vi_depth)) continue; if ((info->vi_planes != 0) && (info->vi_planes != vesa_vmode[i].vi_planes)) continue; /* pixel format, memory model */ if ((info->vi_flags != 0) && (info->vi_flags != vesa_vmode[i].vi_flags)) continue; *info = vesa_vmode[i]; return 0; } return ENODEV; } static int vesa_set_mode(video_adapter_t *adp, int mode) { video_info_t info; int len; if (adp != vesa_adp) return (*prevvidsw->set_mode)(adp, mode); mode = vesa_map_gen_mode_num(adp->va_type, adp->va_flags & V_ADP_COLOR, mode); #if VESA_DEBUG > 0 printf("VESA: set_mode(): %d(%x) -> %d(%x)\n", adp->va_mode, adp->va_mode, mode, mode); #endif /* * If the current mode is a VESA mode and the new mode is not, * restore the state of the adapter first by setting one of the * standard VGA mode, so that non-standard, extended SVGA registers * are set to the state compatible with the standard VGA modes. * Otherwise (*prevvidsw->set_mode)() may not be able to set up * the new mode correctly. */ if (VESA_MODE(adp->va_mode)) { if ((*prevvidsw->get_info)(adp, mode, &info) == 0) { int10_set_mode(adp->va_initial_bios_mode); if (adp->va_info.vi_flags & V_INFO_LINEAR) vesa_unmap_buffer(adp->va_buffer, vesa_adp_info->v_memsize*64*1024); /* * Once (*prevvidsw->get_info)() succeeded, * (*prevvidsw->set_mode)() below won't fail... */ } } /* we may not need to handle this mode after all... */ if ((*prevvidsw->set_mode)(adp, mode) == 0) return 0; /* is the new mode supported? */ if (vesa_get_info(adp, mode, &info)) return 1; /* assert(VESA_MODE(mode)); */ #if VESA_DEBUG > 0 printf("VESA: about to set a VESA mode...\n"); #endif /* don't use the linear frame buffer for text modes. XXX */ if (!(info.vi_flags & V_INFO_GRAPHICS)) info.vi_flags &= ~V_INFO_LINEAR; if (vesa_bios_set_mode(mode | ((info.vi_flags & V_INFO_LINEAR) ? 0x4000 : 0))) return 1; if (adp->va_info.vi_flags & V_INFO_LINEAR) vesa_unmap_buffer(adp->va_buffer, vesa_adp_info->v_memsize*64*1024); #if VESA_DEBUG > 0 printf("VESA: mode set!\n"); #endif vesa_adp->va_mode = mode; vesa_adp->va_flags &= ~V_ADP_COLOR; vesa_adp->va_flags |= (info.vi_flags & V_INFO_COLOR) ? V_ADP_COLOR : 0; vesa_adp->va_crtc_addr = (vesa_adp->va_flags & V_ADP_COLOR) ? COLOR_CRTC : MONO_CRTC; if (info.vi_flags & V_INFO_LINEAR) { #if VESA_DEBUG > 1 printf("VESA: setting up LFB\n"); #endif vesa_adp->va_buffer = vesa_map_buffer(info.vi_buffer, vesa_adp_info->v_memsize*64*1024); vesa_adp->va_buffer_size = info.vi_buffer_size; vesa_adp->va_window = vesa_adp->va_buffer; vesa_adp->va_window_size = info.vi_buffer_size/info.vi_planes; vesa_adp->va_window_gran = info.vi_buffer_size/info.vi_planes; } else { vesa_adp->va_buffer = 0; vesa_adp->va_buffer_size = info.vi_buffer_size; vesa_adp->va_window = BIOS_PADDRTOVADDR(info.vi_window); vesa_adp->va_window_size = info.vi_window_size; vesa_adp->va_window_gran = info.vi_window_gran; } vesa_adp->va_window_orig = 0; len = vesa_bios_get_line_length(); if (len > 0) { vesa_adp->va_line_width = len; } else if (info.vi_flags & V_INFO_GRAPHICS) { switch (info.vi_depth/info.vi_planes) { case 1: vesa_adp->va_line_width = info.vi_width/8; break; case 2: vesa_adp->va_line_width = info.vi_width/4; break; case 4: vesa_adp->va_line_width = info.vi_width/2; break; case 8: default: /* shouldn't happen */ vesa_adp->va_line_width = info.vi_width; break; } } else { vesa_adp->va_line_width = info.vi_width; } vesa_adp->va_disp_start.x = 0; vesa_adp->va_disp_start.y = 0; #if VESA_DEBUG > 0 printf("vesa_set_mode(): vi_width:%d, len:%d, line_width:%d\n", info.vi_width, len, vesa_adp->va_line_width); #endif bcopy(&info, &vesa_adp->va_info, sizeof(vesa_adp->va_info)); /* move hardware cursor out of the way */ (*vidsw[vesa_adp->va_index]->set_hw_cursor)(vesa_adp, -1, -1); return 0; } static int vesa_save_font(video_adapter_t *adp, int page, int fontsize, u_char *data, int ch, int count) { return (*prevvidsw->save_font)(adp, page, fontsize, data, ch, count); } static int vesa_load_font(video_adapter_t *adp, int page, int fontsize, u_char *data, int ch, int count) { return (*prevvidsw->load_font)(adp, page, fontsize, data, ch, count); } static int vesa_show_font(video_adapter_t *adp, int page) { return (*prevvidsw->show_font)(adp, page); } static int vesa_save_palette(video_adapter_t *adp, u_char *palette) { int bits; int error; if ((adp == vesa_adp) && (vesa_adp_info->v_flags & V_DAC8) && VESA_MODE(adp->va_mode)) { bits = vesa_bios_get_dac(); error = vesa_bios_save_palette(0, 256, palette, bits); if (error == 0) return 0; if (bits != 6) return error; } return (*prevvidsw->save_palette)(adp, palette); } static int vesa_load_palette(video_adapter_t *adp, u_char *palette) { #if notyet int bits; int error; if ((adp == vesa_adp) && (vesa_adp_info->v_flags & V_DAC8) && VESA_MODE(adp->va_mode) && ((bits = vesa_bios_set_dac(8)) > 6)) { error = vesa_bios_load_palette(0, 256, palette, bits); if (error == 0) return 0; if (vesa_bios_set_dac(6) != 6) return 1; } #endif /* notyet */ return (*prevvidsw->load_palette)(adp, palette); } static int vesa_set_border(video_adapter_t *adp, int color) { return (*prevvidsw->set_border)(adp, color); } static int vesa_save_state(video_adapter_t *adp, void *p, size_t size) { if (adp != vesa_adp) return (*prevvidsw->save_state)(adp, p, size); if (vesa_state_buf_size == 0) vesa_state_buf_size = vesa_bios_state_buf_size(); if (size == 0) return (sizeof(int) + vesa_state_buf_size); else if (size < (sizeof(int) + vesa_state_buf_size)) return 1; ((adp_state_t *)p)->sig = V_STATE_SIG; bzero(((adp_state_t *)p)->regs, vesa_state_buf_size); return vesa_bios_save_restore(STATE_SAVE, ((adp_state_t *)p)->regs, vesa_state_buf_size); } static int vesa_load_state(video_adapter_t *adp, void *p) { if ((adp != vesa_adp) || (((adp_state_t *)p)->sig != V_STATE_SIG)) return (*prevvidsw->load_state)(adp, p); return vesa_bios_save_restore(STATE_LOAD, ((adp_state_t *)p)->regs, vesa_state_buf_size); } #if 0 static int vesa_get_origin(video_adapter_t *adp, off_t *offset) { struct vm86frame vmf; int err; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f05; vmf.vmf_ebx = 0x10; /* WINDOW_A, XXX */ err = vm86_intcall(0x10, &vmf); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 1; *offset = vmf.vmf_dx*adp->va_window_gran; return 0; } #endif static int vesa_set_origin(video_adapter_t *adp, off_t offset) { struct vm86frame vmf; int err; /* * This function should return as quickly as possible to * maintain good performance of the system. For this reason, * error checking is kept minimal and let the VESA BIOS to * detect error. */ if (adp != vesa_adp) return (*prevvidsw->set_win_org)(adp, offset); /* if this is a linear frame buffer, do nothing */ if (adp->va_info.vi_flags & V_INFO_LINEAR) return 0; /* XXX */ if (adp->va_window_gran == 0) return 1; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f05; vmf.vmf_ebx = 0; /* WINDOW_A, XXX */ vmf.vmf_edx = offset/adp->va_window_gran; err = vm86_intcall(0x10, &vmf); if ((err != 0) || (vmf.vmf_ax != 0x4f)) return 1; bzero(&vmf, sizeof(vmf)); vmf.vmf_eax = 0x4f05; vmf.vmf_ebx = 1; /* WINDOW_B, XXX */ vmf.vmf_edx = offset/adp->va_window_gran; err = vm86_intcall(0x10, &vmf); adp->va_window_orig = (offset/adp->va_window_gran)*adp->va_window_gran; return 0; /* XXX */ } static int vesa_read_hw_cursor(video_adapter_t *adp, int *col, int *row) { return (*prevvidsw->read_hw_cursor)(adp, col, row); } static int vesa_set_hw_cursor(video_adapter_t *adp, int col, int row) { return (*prevvidsw->set_hw_cursor)(adp, col, row); } static int vesa_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, int celsize, int blink) { return (*prevvidsw->set_hw_cursor_shape)(adp, base, height, celsize, blink); } static int vesa_blank_display(video_adapter_t *adp, int mode) { /* XXX: use VESA DPMS */ return (*prevvidsw->blank_display)(adp, mode); } static int vesa_mmap(video_adapter_t *adp, vm_offset_t offset, vm_paddr_t *paddr, int prot) { #if VESA_DEBUG > 0 printf("vesa_mmap(): window:0x%x, buffer:0x%x, offset:0x%x\n", adp->va_info.vi_window, adp->va_info.vi_buffer, offset); #endif if ((adp == vesa_adp) && (adp->va_info.vi_flags & V_INFO_LINEAR)) { /* va_window_size == va_buffer_size/vi_planes */ /* XXX: is this correct? */ if (offset > adp->va_window_size - PAGE_SIZE) return -1; *paddr = adp->va_info.vi_buffer + offset; return 0; } else { return (*prevvidsw->mmap)(adp, offset, paddr, prot); } } static int vesa_clear(video_adapter_t *adp) { return (*prevvidsw->clear)(adp); } static int vesa_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) { return (*prevvidsw->fill_rect)(adp, val, x, y, cx, cy); } static int vesa_bitblt(video_adapter_t *adp,...) { /* FIXME */ return 1; } static int get_palette(video_adapter_t *adp, int base, int count, u_char *red, u_char *green, u_char *blue, u_char *trans) { u_char *r; u_char *g; u_char *b; int bits; int error; if ((base < 0) || (base >= 256) || (count < 0) || (count > 256)) return 1; if ((base + count) > 256) return 1; if (!(vesa_adp_info->v_flags & V_DAC8) || !VESA_MODE(adp->va_mode)) return 1; bits = vesa_bios_get_dac(); if (bits <= 6) return 1; r = malloc(count*3, M_DEVBUF, M_WAITOK); g = r + count; b = g + count; error = vesa_bios_save_palette2(base, count, r, g, b, bits); if (error == 0) { copyout(r, red, count); copyout(g, green, count); copyout(b, blue, count); if (trans != NULL) { bzero(r, count); copyout(r, trans, count); } } free(r, M_DEVBUF); /* if error && bits != 6 at this point, we are in in trouble... XXX */ return error; } static int set_palette(video_adapter_t *adp, int base, int count, u_char *red, u_char *green, u_char *blue, u_char *trans) { return 1; #if notyet u_char *r; u_char *g; u_char *b; int bits; int error; if ((base < 0) || (base >= 256) || (base + count > 256)) return 1; if (!(vesa_adp_info->v_flags & V_DAC8) || !VESA_MODE(adp->va_mode) || ((bits = vesa_bios_set_dac(8)) <= 6)) return 1; r = malloc(count*3, M_DEVBUF, M_WAITOK); g = r + count; b = g + count; copyin(red, r, count); copyin(green, g, count); copyin(blue, b, count); error = vesa_bios_load_palette2(base, count, r, g, b, bits); free(r, M_DEVBUF); if (error == 0) return 0; /* if the following call fails, we are in trouble... XXX */ vesa_bios_set_dac(6); return 1; #endif /* notyet */ } static int vesa_ioctl(video_adapter_t *adp, u_long cmd, caddr_t arg) { int bytes; if (adp != vesa_adp) return (*prevvidsw->ioctl)(adp, cmd, arg); switch (cmd) { case FBIO_SETWINORG: /* set frame buffer window origin */ if (!VESA_MODE(adp->va_mode)) return (*prevvidsw->ioctl)(adp, cmd, arg); return (vesa_set_origin(adp, *(off_t *)arg) ? ENODEV : 0); case FBIO_SETDISPSTART: /* set display start address */ if (!VESA_MODE(adp->va_mode)) return (*prevvidsw->ioctl)(adp, cmd, arg); if (vesa_bios_set_start(((video_display_start_t *)arg)->x, ((video_display_start_t *)arg)->y)) return ENODEV; adp->va_disp_start.x = ((video_display_start_t *)arg)->x; adp->va_disp_start.y = ((video_display_start_t *)arg)->y; return 0; case FBIO_SETLINEWIDTH: /* set line length in pixel */ if (!VESA_MODE(adp->va_mode)) return (*prevvidsw->ioctl)(adp, cmd, arg); if (vesa_bios_set_line_length(*(u_int *)arg, &bytes, NULL)) return ENODEV; adp->va_line_width = bytes; #if VESA_DEBUG > 1 printf("new line width:%d\n", adp->va_line_width); #endif return 0; case FBIO_GETPALETTE: /* get color palette */ if (get_palette(adp, ((video_color_palette_t *)arg)->index, ((video_color_palette_t *)arg)->count, ((video_color_palette_t *)arg)->red, ((video_color_palette_t *)arg)->green, ((video_color_palette_t *)arg)->blue, ((video_color_palette_t *)arg)->transparent)) return (*prevvidsw->ioctl)(adp, cmd, arg); return 0; case FBIO_SETPALETTE: /* set color palette */ if (set_palette(adp, ((video_color_palette_t *)arg)->index, ((video_color_palette_t *)arg)->count, ((video_color_palette_t *)arg)->red, ((video_color_palette_t *)arg)->green, ((video_color_palette_t *)arg)->blue, ((video_color_palette_t *)arg)->transparent)) return (*prevvidsw->ioctl)(adp, cmd, arg); return 0; case FBIOGETCMAP: /* get color palette */ if (get_palette(adp, ((struct fbcmap *)arg)->index, ((struct fbcmap *)arg)->count, ((struct fbcmap *)arg)->red, ((struct fbcmap *)arg)->green, ((struct fbcmap *)arg)->blue, NULL)) return (*prevvidsw->ioctl)(adp, cmd, arg); return 0; case FBIOPUTCMAP: /* set color palette */ if (set_palette(adp, ((struct fbcmap *)arg)->index, ((struct fbcmap *)arg)->count, ((struct fbcmap *)arg)->red, ((struct fbcmap *)arg)->green, ((struct fbcmap *)arg)->blue, NULL)) return (*prevvidsw->ioctl)(adp, cmd, arg); return 0; default: return (*prevvidsw->ioctl)(adp, cmd, arg); } } static int vesa_diag(video_adapter_t *adp, int level) { int error; /* call the previous handler first */ error = (*prevvidsw->diag)(adp, level); if (error) return error; if (adp != vesa_adp) return 1; if (level <= 0) return 0; return 0; } static int vesa_bios_info(int level) { #if VESA_DEBUG > 1 struct vesa_mode vmode; int i; #endif if (bootverbose) { /* general adapter information */ printf( "VESA: v%d.%d, %dk memory, flags:0x%x, mode table:%p (%x)\n", ((vesa_adp_info->v_version & 0xf000) >> 12) * 10 + ((vesa_adp_info->v_version & 0x0f00) >> 8), ((vesa_adp_info->v_version & 0x00f0) >> 4) * 10 + (vesa_adp_info->v_version & 0x000f), vesa_adp_info->v_memsize * 64, vesa_adp_info->v_flags, vesa_vmodetab, vesa_adp_info->v_modetable); /* OEM string */ if (vesa_oemstr != NULL) printf("VESA: %s\n", vesa_oemstr); } if (level <= 0) return 0; if (vesa_adp_info->v_version >= 0x0200 && bootverbose) { /* vender name, product name, product revision */ printf("VESA: %s %s %s\n", (vesa_venderstr != NULL) ? vesa_venderstr : "unknown", (vesa_prodstr != NULL) ? vesa_prodstr : "unknown", (vesa_revstr != NULL) ? vesa_revstr : "?"); } #if VESA_DEBUG > 1 /* mode information */ for (i = 0; (i < (M_VESA_MODE_MAX - M_VESA_BASE + 1)) && (vesa_vmodetab[i] != 0xffff); ++i) { if (vesa_bios_get_mode(vesa_vmodetab[i], &vmode)) continue; /* print something for diagnostic purpose */ printf("VESA: mode:0x%03x, flags:0x%04x", vesa_vmodetab[i], vmode.v_modeattr); if (vmode.v_modeattr & V_MODEOPTINFO) { if (vmode.v_modeattr & V_MODEGRAPHICS) { printf(", G %dx%dx%d %d, ", vmode.v_width, vmode.v_height, vmode.v_bpp, vmode.v_planes); } else { printf(", T %dx%d, ", vmode.v_width, vmode.v_height); } printf("font:%dx%d, ", vmode.v_cwidth, vmode.v_cheight); printf("pages:%d, mem:%d", vmode.v_ipages + 1, vmode.v_memmodel); } if (vmode.v_modeattr & V_MODELFB) { printf("\nVESA: LFB:0x%x, off:0x%x, off_size:0x%x", vmode.v_lfb, vmode.v_offscreen, vmode.v_offscreensize*1024); } printf("\n"); printf("VESA: window A:0x%x (%x), window B:0x%x (%x), ", vmode.v_waseg, vmode.v_waattr, vmode.v_wbseg, vmode.v_wbattr); printf("size:%dk, gran:%dk\n", vmode.v_wsize, vmode.v_wgran); } #endif /* VESA_DEBUG > 1 */ return 0; } /* module loading */ static int vesa_load(void) { int error; int s; if (vesa_init_done) return 0; /* locate a VGA adapter */ s = spltty(); vesa_adp = NULL; error = vesa_configure(0); splx(s); if (error == 0) vesa_bios_info(bootverbose); return error; } static int vesa_unload(void) { u_char palette[256*3]; int error; int bits; int s; /* if the adapter is currently in a VESA mode, don't unload */ if ((vesa_adp != NULL) && VESA_MODE(vesa_adp->va_mode)) return EBUSY; /* * FIXME: if there is at least one vty which is in a VESA mode, * we shouldn't be unloading! XXX */ s = spltty(); if ((error = vesa_unload_ioctl()) == 0) { if (vesa_adp != NULL) { if (vesa_adp_info->v_flags & V_DAC8) { bits = vesa_bios_get_dac(); if (bits > 6) { vesa_bios_save_palette(0, 256, palette, bits); vesa_bios_set_dac(6); vesa_bios_load_palette(0, 256, palette, 6); } } vesa_adp->va_flags &= ~V_ADP_VESA; vidsw[vesa_adp->va_index] = prevvidsw; } } splx(s); return error; } static int vesa_mod_event(module_t mod, int type, void *data) { switch (type) { case MOD_LOAD: return vesa_load(); case MOD_UNLOAD: return vesa_unload(); default: break; } return 0; } static moduledata_t vesa_mod = { "vesa", vesa_mod_event, NULL, }; DECLARE_MODULE(vesa, vesa_mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE); #endif /* VGA_NO_MODE_CHANGE */