From 9d2fadbd2b45ba60a14fb37bd8671e217ded5386 Mon Sep 17 00:00:00 2001 From: delphij Date: Wed, 9 Sep 2009 07:45:08 +0000 Subject: Copy the following files to new places, a subsequent commit would remove them from the old place. This commit necessary so that the tree would not enter a broken state. sys/i386/isa/vesa.c -> dev/fb/vesa.c sys/i386/include/pc/vesa.h -> dev/fb/vesa.h sys/i386/isa/dpms.c -> dev/dpms/dpms.c --- sys/dev/fb/vesa.c | 1696 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1696 insertions(+) create mode 100644 sys/dev/fb/vesa.c (limited to 'sys/dev/fb/vesa.c') diff --git a/sys/dev/fb/vesa.c b/sys/dev/fb/vesa.c new file mode 100644 index 0000000..736daff --- /dev/null +++ b/sys/dev/fb/vesa.c @@ -0,0 +1,1696 @@ +/*- + * 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; +#define VESA_VM86_BUFSIZE (3 * PAGE_SIZE) +static void *vesa_vm86_buf; + +/* 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 = vesa_vm86_buf; + 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 = vesa_vm86_buf; + 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 = vesa_vm86_buf; + 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 = vesa_vm86_buf; + 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 = vesa_vm86_buf; + 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_ALL; + 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; + + if (size > VESA_VM86_BUFSIZE) + return (1); + + bzero(&vmf, sizeof(vmf)); + vmf.vmf_eax = 0x4f04; + vmf.vmf_ecx = STATE_ALL; + vmf.vmf_edx = code; /* STATE_SAVE/STATE_LOAD */ + buf = vesa_vm86_buf; + 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); + bcopy(buf, p, size); + 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; + + /* Allocate a buffer and add each page to the vm86 context. */ + vesa_vm86_buf = malloc(VESA_VM86_BUFSIZE, M_DEVBUF, M_WAITOK | M_ZERO); + KASSERT(((vm_offset_t)vesa_vm86_buf & PAGE_MASK) == 0, + ("bad vesa_vm86_buf alignment")); + for (i = 0; i < howmany(VESA_VM86_BUFSIZE, PAGE_SIZE); i++) + vm86_addpage(&vesa_vmcontext, i + 1, + (vm_offset_t)vesa_vm86_buf + PAGE_SIZE * i); + + vmbuf = vesa_vm86_buf; + 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_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); + if (!has_vesa_bios) + return (1); + + return (0); +} + +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; + case 15: + case 16: + vesa_adp->va_line_width = info.vi_width*2; + break; + case 24: + case 32: + vesa_adp->va_line_width = info.vi_width*4; + 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, int fontwidth, + u_char *data, int ch, int count) +{ + return (*prevvidsw->save_font)(adp, page, fontsize, fontwidth, data, + ch, count); +} + +static int +vesa_load_font(video_adapter_t *adp, int page, int fontsize, int fontwidth, + u_char *data, int ch, int count) +{ + return (*prevvidsw->load_font)(adp, page, fontsize, fontwidth, 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) +{ +#ifdef 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 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; +#ifdef 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); + + if (vesa_vm86_buf != NULL) + free(vesa_vm86_buf, M_DEVBUF); + + 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: + return EOPNOTSUPP; + } + 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 */ -- cgit v1.1