Date: Wed, 9 Sep 2009 07:45:08 +0000 (UTC) From: Xin LI <delphij@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r197022 - in head/sys/dev: dpms fb Message-ID: <200909090745.n897j876077117@svn.freebsd.org>
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Author: delphij Date: Wed Sep 9 07:45:08 2009 New Revision: 197022 URL: http://svn.freebsd.org/changeset/base/197022 Log: 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 Added: head/sys/dev/dpms/dpms.c - copied unchanged from r197019, head/sys/i386/isa/dpms.c head/sys/dev/fb/vesa.c - copied unchanged from r197019, head/sys/i386/isa/vesa.c head/sys/dev/fb/vesa.h - copied unchanged from r197019, head/sys/i386/include/pc/vesa.h Copied: head/sys/dev/dpms/dpms.c (from r197019, head/sys/i386/isa/dpms.c) ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/dev/dpms/dpms.c Wed Sep 9 07:45:08 2009 (r197022, copy of r197019, head/sys/i386/isa/dpms.c) @@ -0,0 +1,230 @@ +/*- + * Copyright (c) 2008 Yahoo!, Inc. + * All rights reserved. + * Written by: John Baldwin <jhb@FreeBSD.org> + * + * 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. + * 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. + * 3. Neither the name of the author nor the names of any co-contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 AUTHOR OR CONTRIBUTORS 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. + */ + +/* + * Copyright (c) 2004 Benjamin Close <Benjamin.Close@clearchain.com> + * 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. + * 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 AUTHOR AND CONTRIBUTORS ``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 AUTHOR OR CONTRIBUTORS 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. + */ + +/* + * Support for managing the display via DPMS for suspend/resume. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/bus.h> +#include <sys/kernel.h> +#include <sys/libkern.h> +#include <sys/module.h> + +#include <machine/vm86.h> + +/* + * VESA DPMS States + */ +#define DPMS_ON 0x00 +#define DPMS_STANDBY 0x01 +#define DPMS_SUSPEND 0x02 +#define DPMS_OFF 0x04 +#define DPMS_REDUCEDON 0x08 + +#define VBE_DPMS_FUNCTION 0x4F10 +#define VBE_DPMS_GET_SUPPORTED_STATES 0x00 +#define VBE_DPMS_GET_STATE 0x02 +#define VBE_DPMS_SET_STATE 0x01 +#define VBE_MAJORVERSION_MASK 0x0F +#define VBE_MINORVERSION_MASK 0xF0 + +struct dpms_softc { + int dpms_supported_states; + int dpms_initial_state; +}; + +static int dpms_attach(device_t); +static int dpms_detach(device_t); +static int dpms_get_supported_states(int *); +static int dpms_get_current_state(int *); +static void dpms_identify(driver_t *, device_t); +static int dpms_probe(device_t); +static int dpms_resume(device_t); +static int dpms_set_state(int); +static int dpms_suspend(device_t); + +static device_method_t dpms_methods[] = { + DEVMETHOD(device_identify, dpms_identify), + DEVMETHOD(device_probe, dpms_probe), + DEVMETHOD(device_attach, dpms_attach), + DEVMETHOD(device_detach, dpms_detach), + DEVMETHOD(device_suspend, dpms_suspend), + DEVMETHOD(device_resume, dpms_resume), + { 0, 0 } +}; + +static driver_t dpms_driver = { + "dpms", + dpms_methods, + sizeof(struct dpms_softc), +}; + +static devclass_t dpms_devclass; + +DRIVER_MODULE(dpms, vgapci, dpms_driver, dpms_devclass, NULL, NULL); + +static void +dpms_identify(driver_t *driver, device_t parent) +{ + + /* + * XXX: The DPMS VBE only allows for manipulating a single + * monitor, but we don't know which one. Just attach to the + * first vgapci(4) device we encounter and hope it is the + * right one. + */ + if (devclass_get_device(dpms_devclass, 0) == NULL) + device_add_child(parent, "dpms", 0); +} + +static int +dpms_probe(device_t dev) +{ + int error, states; + + error = dpms_get_supported_states(&states); + if (error) + return (error); + device_set_desc(dev, "DPMS suspend/resume"); + device_quiet(dev); + return (BUS_PROBE_DEFAULT); +} + +static int +dpms_attach(device_t dev) +{ + struct dpms_softc *sc; + int error; + + sc = device_get_softc(dev); + error = dpms_get_supported_states(&sc->dpms_supported_states); + if (error) + return (error); + error = dpms_get_current_state(&sc->dpms_initial_state); + return (error); +} + +static int +dpms_detach(device_t dev) +{ + + return (0); +} + +static int +dpms_suspend(device_t dev) +{ + + dpms_set_state(DPMS_OFF); + return (0); +} + +static int +dpms_resume(device_t dev) +{ + struct dpms_softc *sc; + + sc = device_get_softc(dev); + dpms_set_state(sc->dpms_initial_state); + return (0); +} + +static int +dpms_call_bios(int subfunction, int *bh) +{ + struct vm86frame vmf; + int error; + + bzero(&vmf, sizeof(vmf)); + vmf.vmf_ax = VBE_DPMS_FUNCTION; + vmf.vmf_bl = subfunction; + vmf.vmf_bh = *bh; + vmf.vmf_es = 0; + vmf.vmf_di = 0; + error = vm86_intcall(0x10, &vmf); + if (error == 0 && (vmf.vmf_eax & 0xffff) != 0x004f) + error = ENXIO; + if (error == 0) + *bh = vmf.vmf_bh; + return (error); +} + +static int +dpms_get_supported_states(int *states) +{ + + *states = 0; + return (dpms_call_bios(VBE_DPMS_GET_SUPPORTED_STATES, states)); +} + +static int +dpms_get_current_state(int *state) +{ + + *state = 0; + return (dpms_call_bios(VBE_DPMS_GET_STATE, state)); +} + +static int +dpms_set_state(int state) +{ + + return (dpms_call_bios(VBE_DPMS_SET_STATE, &state)); +} Copied: head/sys/dev/fb/vesa.c (from r197019, head/sys/i386/isa/vesa.c) ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/sys/dev/fb/vesa.c Wed Sep 9 07:45:08 2009 (r197022, copy of r197019, head/sys/i386/isa/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 <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include "opt_vga.h" +#include "opt_vesa.h" + +#ifndef VGA_NO_MODE_CHANGE + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/kernel.h> +#include <sys/module.h> +#include <sys/malloc.h> +#include <sys/fbio.h> + +#include <vm/vm.h> +#include <vm/vm_extern.h> +#include <vm/vm_kern.h> +#include <vm/vm_param.h> +#include <vm/pmap.h> + +#include <machine/md_var.h> +#include <machine/vm86.h> +#include <machine/pc/bios.h> +#include <machine/pc/vesa.h> + +#include <dev/fb/fbreg.h> +#include <dev/fb/vgareg.h> + +#ifndef __i386__ +#include <isa/isareg.h> +#else +#include <i386/isa/isa.h> +#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; *** DIFF OUTPUT TRUNCATED AT 1000 LINES ***
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