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authorStefan Reinauer <stepan@coresystems.de>2010-02-22 04:33:13 +0000
committerStefan Reinauer <stepan@openbios.org>2010-02-22 04:33:13 +0000
commitd650e9934ff8da9b9cb69e42e642c0ee6d390bf6 (patch)
tree8c6982efa868e828c21d4d427d2678e7e0804668 /util/x86emu/biosemu.c
parent30b90fe4f0b31aa6676f507d3913579453942ba8 (diff)
YABEL update
- drop x86emu + old biosemu in favor of YABEL - Add YABEL_DIRECTHW to get the old biosemu behavior - add support for vesa console using YABEL - add coreboot table entry with console information - add bootsplash support (reads /bootsplash.jpg from CBFS) Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Pattrick Hueper <phueper@hueper.net> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5135 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'util/x86emu/biosemu.c')
-rw-r--r--util/x86emu/biosemu.c580
1 files changed, 0 insertions, 580 deletions
diff --git a/util/x86emu/biosemu.c b/util/x86emu/biosemu.c
index 7c5e3d766f..e69de29bb2 100644
--- a/util/x86emu/biosemu.c
+++ b/util/x86emu/biosemu.c
@@ -1,580 +0,0 @@
-/*
- * This software and ancillary information (herein called SOFTWARE )
- * called LinuxBIOS is made available under the terms described
- * here. The SOFTWARE has been approved for release with associated
- * LA-CC Number 00-34 . Unless otherwise indicated, this SOFTWARE has
- * been authored by an employee or employees of the University of
- * California, operator of the Los Alamos National Laboratory under
- * Contract No. W-7405-ENG-36 with the U.S. Department of Energy. The
- * U.S. Government has rights to use, reproduce, and distribute this
- * SOFTWARE. The public may copy, distribute, prepare derivative works
- * and publicly display this SOFTWARE without charge, provided that this
- * Notice and any statement of authorship are reproduced on all copies.
- * Neither the Government nor the University makes any warranty, express
- * or implied, or assumes any liability or responsibility for the use of
- * this SOFTWARE. If SOFTWARE is modified to produce derivative works,
- * such modified SOFTWARE should be clearly marked, so as not to confuse
- * it with the version available from LANL.
- */
- /*
- * This file is part of the coreboot project.
- *
- * (c) Copyright 2000, Ron Minnich, Advanced Computing Lab, LANL
- * Copyright (C) 2009 coresystems GmbH
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-#include <string.h>
-#include <arch/io.h>
-#include <console/console.h>
-#include <device/device.h>
-#include <device/pci.h>
-#include <device/pci_ids.h>
-#include <device/pci_ops.h>
-#include <x86emu/x86emu.h>
-#include "x86emu/prim_ops.h"
-
-#define DATA_SEGMENT 0x2000
-#define STACK_SEGMENT 0x1000 //1000:xxxx
-#define STACK_START_OFFSET 0xfffe
-#define INITIAL_EBDA_SEGMENT 0xF600 // segment of the Extended BIOS Data Area
-#define INITIAL_EBDA_SIZE 0x400 // size of the EBDA (at least 1KB!! since size is stored in KB!)
-
-enum {
- PCI_BIOS_PRESENT = 0xB101,
- FIND_PCI_DEVICE = 0xB102,
- FIND_PCI_CLASS_CODE = 0xB103,
- GENERATE_SPECIAL_CYCLE = 0xB106,
- READ_CONFIG_BYTE = 0xB108,
- READ_CONFIG_WORD = 0xB109,
- READ_CONFIG_DWORD = 0xB10A,
- WRITE_CONFIG_BYTE = 0xB10B,
- WRITE_CONFIG_WORD = 0xB10C,
- WRITE_CONFIG_DWORD = 0xB10D,
- GET_IRQ_ROUTING_OPTIONS = 0xB10E,
- SET_PCI_IRQ = 0xB10F
-};
-
-enum {
- SUCCESSFUL = 0x00,
- FUNC_NOT_SUPPORTED = 0x81,
- BAD_VENDOR_ID = 0x83,
- DEVICE_NOT_FOUND = 0x86,
- BAD_REGISTER_NUMBER = 0x87,
- SET_FAILED = 0x88,
- BUFFER_TOO_SMALL = 0x89
-};
-
-#define MEM_WB(where, what) wrb(where, what)
-#define MEM_WW(where, what) wrw(where, what)
-#define MEM_WL(where, what) wrl(where, what)
-
-#define MEM_RB(where) rdb(where)
-#define MEM_RW(where) rdw(where)
-#define MEM_RL(where) rdl(where)
-
-static u8 biosemu_inb(u16 port)
-{
- u8 val;
-
- val = inb(port);
-#ifdef DEBUG
- if (port != 0x40)
- printk("inb(0x%04x) = 0x%02x\n", port, val);
-#endif
-
- return val;
-}
-
-static u16 biosemu_inw(u16 port)
-{
- u16 val;
-
- val = inw(port);
-
-#ifdef DEBUG
- printk("inw(0x%04x) = 0x%04x\n", port, val);
-#endif
- return val;
-}
-
-static u32 biosemu_inl(u16 port)
-{
- u32 val;
-
- val = inl(port);
-
-#ifdef DEBUG
- printk("inl(0x%04x) = 0x%08x\n", port, val);
-#endif
- return val;
-}
-
-static void biosemu_outb(u16 port, u8 val)
-{
-#ifdef DEBUG
- if (port != 0x43)
- printk("outb(0x%02x, 0x%04x)\n", val, port);
-#endif
- outb(val, port);
-}
-
-static void biosemu_outw(u16 port, u16 val)
-{
-#ifdef DEBUG
- printk("outw(0x%04x, 0x%04x)\n", val, port);
-#endif
- outw(val, port);
-}
-
-static void biosemu_outl(u16 port, u32 val)
-{
-#ifdef DEBUG
- printk("outl(0x%08x, 0x%04x)\n", val, port);
-#endif
- outl(val, port);
-}
-
-static X86EMU_pioFuncs biosemu_piofuncs = {
- biosemu_inb, biosemu_inw, biosemu_inl,
- biosemu_outb, biosemu_outw, biosemu_outl
-};
-
-/* Interrupt Handlers */
-
-static int int15_handler(void)
-{
- /* This int15 handler is VIA Tech. and Intel specific. Other chipsets need other
- * handlers. The right way to do this is to move this handler code into
- * the mainboard or northbridge code.
- */
- switch (X86_AX) {
- case 0x5f19:
- X86_EFLAGS |= FB_CF; /* set carry flag */
- break;
- case 0x5f18:
- X86_EAX = 0x5f;
- // MCLK = 133, 32M frame buffer, 256 M main memory
- X86_EBX = 0x545;
- X86_ECX = 0x060;
- X86_EFLAGS &= ~FB_CF;
- break;
- case 0x5f00:
- X86_EAX = 0x8600;
- X86_EFLAGS |= FB_CF; /* set carry flag */
- break;
- case 0x5f01:
- X86_EAX = 0x5f;
- X86_ECX = (X86_ECX & 0xffffff00 ) | 2; // panel type = 2 = 1024 * 768
- X86_EFLAGS &= ~FB_CF;
- break;
- case 0x5f02:
- X86_EAX = 0x5f;
- X86_EBX = (X86_EBX & 0xffff0000) | 2;
- X86_ECX = (X86_ECX & 0xffff0000) | 0x401; // PAL + crt only
- X86_EDX = (X86_EDX & 0xffff0000) | 0; // TV Layout - default
- X86_EFLAGS &= ~FB_CF;
- break;
- case 0x5f0f:
- X86_EAX = 0x860f;
- X86_EFLAGS |= FB_CF; /* set carry flag */
- break;
- /* And now Intel IGD code */
-#define BOOT_DISPLAY_DEFAULT 0
-#define BOOT_DISPLAY_CRT (1 << 0)
-#define BOOT_DISPLAY_TV (1 << 1)
-#define BOOT_DISPLAY_EFP (1 << 2)
-#define BOOT_DISPLAY_LCD (1 << 3)
-#define BOOT_DISPLAY_CRT2 (1 << 4)
-#define BOOT_DISPLAY_TV2 (1 << 5)
-#define BOOT_DISPLAY_EFP2 (1 << 6)
-#define BOOT_DISPLAY_LCD2 (1 << 7)
-
- case 0x5f35:
- X86_EAX = 0x5f;
- X86_ECX = BOOT_DISPLAY_DEFAULT;
- X86_EFLAGS &= ~FB_CF;
- break;
- case 0x5f40:
- X86_EAX = 0x5f;
- X86_ECX = 3; // This is mainboard specific
- printk("DISPLAY=%x\n", X86_ECX);
- X86_EFLAGS &= ~FB_CF;
- break;
- default:
- printk("Unknown INT15 function %04x!\n", X86_AX);
- X86_EFLAGS |= FB_CF; /* set carry flag */
- }
-
- return 1;
-}
-
-static int int1a_handler(void)
-{
- int ret = 0;
- struct device *dev = 0;
-
- switch (X86_AX) {
- case PCI_BIOS_PRESENT:
- X86_AH = 0x00; /* no config space/special cycle support */
- X86_AL = 0x01; /* config mechanism 1 */
- X86_EDX = 'P' | 'C' << 8 | 'I' << 16 | ' ' << 24;
- X86_EBX = 0x0210; /* Version 2.10 */
- X86_ECX = 0xFF00; /* FIXME: Max bus number */
- X86_EFLAGS &= ~FB_CF; /* clear carry flag */
- ret = 1;
- break;
- case FIND_PCI_DEVICE:
- /* FIXME: support SI != 0 */
- dev = dev_find_device(X86_DX, X86_CX, dev);
- if (dev != 0) {
- X86_BH = dev->bus->secondary;
- X86_BL = dev->path.pci.devfn;
- X86_AH = SUCCESSFUL;
- X86_EFLAGS &= ~FB_CF; /* clear carry flag */
- ret = 1;
- } else {
- X86_AH = DEVICE_NOT_FOUND;
- X86_EFLAGS |= FB_CF; /* set carry flag */
- ret = 0;
- }
- break;
- case FIND_PCI_CLASS_CODE:
- /* FixME: support SI != 0 */
- dev = dev_find_class(X86_ECX, dev);
- if (dev != 0) {
- X86_BH = dev->bus->secondary;
- X86_BL = dev->path.pci.devfn;
- X86_AH = SUCCESSFUL;
- X86_EFLAGS &= ~FB_CF; /* clear carry flag */
- ret = 1;
- } else {
- X86_AH = DEVICE_NOT_FOUND;
- X86_EFLAGS |= FB_CF; /* set carry flag */
- ret = 0;
- }
- break;
- case READ_CONFIG_BYTE:
- dev = dev_find_slot(X86_BH, X86_BL);
- if (dev != 0) {
- X86_CL = pci_read_config8(dev, X86_DI);
- X86_AH = SUCCESSFUL;
- X86_EFLAGS &= ~FB_CF; /* clear carry flag */
- ret = 1;
- } else {
- X86_AH = DEVICE_NOT_FOUND;
- X86_EFLAGS |= FB_CF; /* set carry flag */
- ret = 0;
- }
- break;
- case READ_CONFIG_WORD:
- dev = dev_find_slot(X86_BH, X86_BL);
- if (dev != 0) {
- X86_CX = pci_read_config16(dev, X86_DI);
- X86_AH = SUCCESSFUL;
- X86_EFLAGS &= ~FB_CF; /* clear carry flag */
- ret = 1;
- } else {
- X86_AH = DEVICE_NOT_FOUND;
- X86_EFLAGS |= FB_CF; /* set carry flag */
- ret = 0;
- }
- break;
- case READ_CONFIG_DWORD:
- dev = dev_find_slot(X86_BH, X86_BL);
- if (dev != 0) {
- X86_ECX = pci_read_config32(dev, X86_DI);
- X86_AH = SUCCESSFUL;
- X86_EFLAGS &= ~FB_CF; /* clear carry flag */
- ret = 1;
- } else {
- X86_AH = DEVICE_NOT_FOUND;
- X86_EFLAGS |= FB_CF; /* set carry flag */
- ret = 0;
- }
- break;
- case WRITE_CONFIG_BYTE:
- dev = dev_find_slot(X86_BH, X86_BL);
- if (dev != 0) {
- pci_write_config8(dev, X86_DI, X86_CL);
- X86_AH = SUCCESSFUL;
- X86_EFLAGS &= ~FB_CF; /* clear carry flag */
- ret = 1;
- } else {
- X86_AH = DEVICE_NOT_FOUND;
- X86_EFLAGS |= FB_CF; /* set carry flag */
- ret = 0;
- }
- break;
- case WRITE_CONFIG_WORD:
- dev = dev_find_slot(X86_BH, X86_BL);
- if (dev != 0) {
- pci_write_config16(dev, X86_DI, X86_CX);
- X86_AH = SUCCESSFUL;
- X86_EFLAGS &= ~FB_CF; /* clear carry flag */
- ret = 1;
- } else {
- X86_AH = DEVICE_NOT_FOUND;
- X86_EFLAGS |= FB_CF; /* set carry flag */
- ret = 0;
- }
- break;
- case WRITE_CONFIG_DWORD:
- dev = dev_find_slot(X86_BH, X86_BL);
- if (dev != 0) {
- pci_write_config16(dev, X86_DI, X86_ECX);
- X86_AH = SUCCESSFUL;
- X86_EFLAGS &= ~FB_CF; /* clear carry flag */
- ret = 1;
- } else {
- X86_AH = DEVICE_NOT_FOUND;
- X86_EFLAGS |= FB_CF; /* set carry flag */
- ret = 0;
- }
- break;
- default:
- X86_AH = FUNC_NOT_SUPPORTED;
- X86_EFLAGS |= FB_CF;
- break;
- }
-
- return ret;
-}
-
-/* Interrupt multiplexer */
-
-/* Find base address of interrupt handler */
-static u32 getIntVect(int num)
-{
- return MEM_RW(num << 2) + (MEM_RW((num << 2) + 2) << 4);
-}
-
-static int run_bios_int(int num)
-{
- u32 eflags;
-
- eflags = X86_EFLAGS;
- push_word(eflags);
- push_word(X86_CS);
- push_word(X86_IP);
- X86_CS = MEM_RW((num << 2) + 2);
- X86_IP = MEM_RW(num << 2);
-
- return 1;
-}
-
-static void do_int(int num)
-{
- int ret = 0;
-
- printk("int%x (AX=%04x) vector at %x\n", num, X86_AX, getIntVect(num));
-
- switch (num) {
- case 0x10:
- case 0x42:
- case 0x6D:
- if (getIntVect(num) == 0x0000) {
- printk("uninitialized interrupt vector\n");
- ret = 1;
- }
- if (getIntVect(num) == 0xFF065) {
- //ret = int42_handler();
- ret = 1;
- }
- break;
- case 0x15:
- ret = int15_handler();
- ret = 1;
- break;
- case 0x16:
- //ret = int16_handler();
- ret = 0;
- break;
- case 0x1A:
- ret = int1a_handler();
- ret = 1;
- break;
- case 0xe6:
- //ret = intE6_handler();
- ret = 0;
- break;
- default:
- break;
- }
-
- if (!ret)
- ret = run_bios_int(num);
-
-}
-
-/*
- * here we are really paranoid about faking a "real"
- * BIOS. Most of this information was pulled from
- * dosemu.
- */
-static void setup_system_bios(void)
-{
- int i;
-
- /* Set up Interrupt Vectors. The IVT starts at 0x0000:0x0000
- * Additionally, we put some stub code into the F segment for
- * those pesky little buggers that jmp to the hard coded addresses
- * instead of calling int XX. This stub code looks like this
- *
- * CD XX int 0xXX
- * C3 ret
- * F4 hlt
- */
-
- /* int 05 default location (Bound Exceeded) */
- MEM_WL(0x05 << 2, 0xf000ff54);
- MEM_WL(0xfff54, 0xf4c305cd);
- /* int 08 default location (Double Fault) */
- MEM_WL(0x08 << 2, 0xf000fea5);
- MEM_WL(0xffea5, 0xf4c308cd);
- /* int 0E default location (Page Fault) */
- MEM_WL(0x0e << 2, 0xf000ef57);
- MEM_WL(0xfef57, 0xf4c30ecd);
- /* int 10 default location */
- MEM_WL(0x10 << 2, 0xf000f065);
- MEM_WL(0xff065, 0xf4c310cd);
- /* int 11 default location (Get Equipment Configuration) */
- MEM_WL(0x11 << 2, 0xf000f84d);
- MEM_WL(0xff84d, 0xf4c311cd);
- /* int 12 default location (Get Conventional Memory Size) */
- MEM_WL(0x12 << 2, 0xf000f841);
- MEM_WL(0xff841, 0xf4c312cd);
- /* int 13 default location (Disk) */
- MEM_WL(0x13 << 2, 0xf000ec59);
- MEM_WL(0xfec59, 0xf4c313cd);
- /* int 14 default location (Disk) */
- MEM_WL(0x14 << 2, 0xf000e739);
- MEM_WL(0xfe739, 0xf4c314cd);
- /* int 15 default location (I/O System Extensions) */
- MEM_WL(0x15 << 2, 0xf000f859);
- MEM_WL(0xf859, 0xf4c315cd);
- /* int 16 default location */
- MEM_WL(0x16 << 2, 0xf000e82e);
- MEM_WL(0xfe82e, 0xf4c316cd);
- /* int 17 default location (Parallel Port) */
- MEM_WL(0x17 << 2, 0xf000efd2);
- MEM_WL(0xfefd2, 0xf4c317cd);
- /* int 1A default location (RTC, PCI and others) */
- MEM_WL(0x1a << 2, 0xf000fe6e);
- MEM_WL(0xffe6e, 0xf4c31acd);
- /* int 1E default location (FDD table) */
- MEM_WL(0x1e << 2, 0xf000efc7);
- MEM_WL(0xfefc7, 0xf4c31ecd);
- /* font tables default location (int 1F) */
- MEM_WL(0x1f << 2, 0xf000fa6e);
- MEM_WL(0xffa6e, 0xf4c31fcd);
- /* int 42 default location */
- MEM_WL(0x42 << 2, 0xf000f065);
- /* int 6D default location */
- MEM_WL(0x6D << 2, 0xf000f065);
-
- /* Clear EBDA */
- for (i=(INITIAL_EBDA_SEGMENT << 4);
- i<(INITIAL_EBDA_SEGMENT << 4) + INITIAL_EBDA_SIZE; i++)
- MEM_WB(i, 0);
- /* at offset 0h in EBDA is the size of the EBDA in KB */
- MEM_WW((INITIAL_EBDA_SEGMENT << 4) + 0x0, INITIAL_EBDA_SIZE / 1024);
-
- /* Clear BDA */
- for (i=0x400; i<0x500; i+=4)
- MEM_WL(i, 0);
-
- /* Set up EBDA */
- MEM_WW(0x40e, INITIAL_EBDA_SEGMENT);
-
- /* Set RAM size to 16MB (fake) */
- MEM_WW(0x413, 16384);
-
- // TODO Set up more of BDA here
-
- /* setup original ROM BIOS Area (F000:xxxx) */
- const char *date = "06/23/99";
- for (i = 0; date[i]; i++)
- MEM_WB(0xffff5 + i, date[i]);
- /* set up eisa ident string */
- const char *ident = "PCI_ISA";
- for (i = 0; ident[i]; i++)
- MEM_WB(0xfffd9 + i, ident[i]);
-
- // write system model id for IBM-AT
- // according to "Ralf Browns Interrupt List" Int15 AH=C0 Table 515,
- // model FC is the original AT and also used in all DOSEMU Versions.
- MEM_WB(0xFFFFE, 0xfc);
-}
-
-#define BIOSEMU_MEM_BASE 0x00000000
-#define BIOSEMU_MEM_SIZE 0x00100000
-void run_bios(struct device * dev, unsigned long addr)
-{
- int i;
- u16 initialcs = (addr & 0xF0000) >> 4;
- u16 initialip = (addr + 3) & 0xFFFF;
- u16 devfn = (dev->bus->secondary << 8) | dev->path.pci.devfn;
- X86EMU_intrFuncs intFuncs[256];
-
- X86EMU_setMemBase(BIOSEMU_MEM_BASE, BIOSEMU_MEM_SIZE);
- X86EMU_setupPioFuncs(&biosemu_piofuncs);
- for (i = 0; i < 256; i++)
- intFuncs[i] = do_int;
- X86EMU_setupIntrFuncs(intFuncs);
-
- setup_system_bios();
-
- /* cpu setup */
- X86_AX = devfn ? devfn : 0xff;
- X86_DX = 0x80;
- X86_EIP = initialip;
- X86_CS = initialcs;
-
- /* Initialize stack and data segment */
- X86_SS = STACK_SEGMENT;
- X86_SP = STACK_START_OFFSET;;
- X86_DS = DATA_SEGMENT;
-
- /* We need a sane way to return from bios
- * execution. A hlt instruction and a pointer
- * to it, both kept on the stack, will do.
- */
- push_word(0xf4f4); /* hlt; hlt */
- push_word(X86_SS);
- push_word(X86_SP + 2);
-
-#ifdef DEBUG
- //X86EMU_trace_on();
-#endif
-
- printk("Executing Initialization Vector...\n");
- X86EMU_exec();
- printk("Option ROM Exit Status: %04x\n", X86_AX);
-
- /* Check whether the stack is "clean" i.e. containing the HLT
- * instruction we pushed before executing and pointing to the original
- * stack address... indicating that the initialization probably was
- * successful
- */
- if ((pop_word() == 0xf4f4) && (X86_SS == STACK_SEGMENT)
- && (X86_SP == STACK_START_OFFSET)) {
- printk("Stack is clean, initialization successfull!\n");
- } else {
- printk("Stack unclean, initialization probably NOT COMPLETE!!\n");
- printk("SS:SP = %04x:%04x, expected: %04x:%04x\n",
- X86_SS, X86_SP, STACK_SEGMENT, STACK_START_OFFSET);
- }
-}