added testbios for V2
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1624 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
267
util/vgabios/helper_exec.c
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267
util/vgabios/helper_exec.c
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/* $XFree86: xc/programs/Xserver/hw/xfree86/int10/helper_exec.c,v 1.16 2001/04/30 14:34:57 tsi Exp $ */
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/*
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* XFree86 int10 module
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* execute BIOS int 10h calls in x86 real mode environment
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* Copyright 1999 Egbert Eich
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*
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* Part of this is based on code taken from DOSEMU
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* (C) Copyright 1992, ..., 1999 the "DOSEMU-Development-Team"
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*/
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/*
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* To debug port accesses define PRINT_PORT.
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* Note! You also have to comment out ioperm()
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* in xf86EnableIO(). Otherwise we won't trap
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* on PIO.
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*/
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#include <x86emu.h>
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#include "test.h"
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#include <asm/io.h>
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#include <sys/time.h>
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int port_rep_inb(u16 port, u32 base, int d_f, u32 count);
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u8 x_inb(u16 port);
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u16 x_inw(u16 port);
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void x_outb(u16 port, u8 val);
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void x_outw(u16 port, u16 val);
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u32 x_inl(u16 port);
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void x_outl(u16 port, u32 val);
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/* general software interrupt handler */
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u32 getIntVect(int num)
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{
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return MEM_RW(num << 2) + (MEM_RW((num << 2) + 2) << 4);
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}
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void pushw(u16 val)
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{
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X86_ESP -= 2;
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MEM_WW(((u32) X86_SS << 4) + X86_SP, val);
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}
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int run_bios_int(int num)
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{
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u32 eflags;
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eflags = X86_EFLAGS;
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pushw(eflags);
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pushw(X86_CS);
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pushw(X86_IP);
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X86_CS = MEM_RW((num << 2) + 2);
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X86_IP = MEM_RW(num << 2);
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//printf("%s: INT %x CS:IP = %x:%x\n", __FUNCTION__,
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// num, MEM_RW((num << 2) + 2), MEM_RW(num << 2));
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return 1;
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}
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int port_rep_inb(u16 port, u32 base, int d_f, u32 count)
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{
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register int inc = d_f ? -1 : 1;
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u32 dst = base;
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while (count--) {
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MEM_WB(dst, x_inb(port));
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dst += inc;
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}
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return dst - base;
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}
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int port_rep_inw(u16 port, u32 base, int d_f, u32 count)
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{
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register int inc = d_f ? -2 : 2;
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u32 dst = base;
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while (count--) {
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MEM_WW(dst, x_inw(port));
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dst += inc;
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}
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return dst - base;
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}
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int port_rep_inl(u16 port, u32 base, int d_f, u32 count)
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{
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register int inc = d_f ? -4 : 4;
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u32 dst = base;
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while (count--) {
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MEM_WL(dst, x_inl(port));
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dst += inc;
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}
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return dst - base;
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}
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int port_rep_outb(u16 port, u32 base, int d_f, u32 count)
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{
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register int inc = d_f ? -1 : 1;
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u32 dst = base;
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while (count--) {
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x_outb(port, MEM_RB(dst));
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dst += inc;
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}
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return dst - base;
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}
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int port_rep_outw(u16 port, u32 base, int d_f, u32 count)
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{
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register int inc = d_f ? -2 : 2;
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u32 dst = base;
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while (count--) {
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x_outw(port, MEM_RW(dst));
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dst += inc;
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}
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return dst - base;
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}
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int port_rep_outl(u16 port, u32 base, int d_f, u32 count)
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{
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register int inc = d_f ? -4 : 4;
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u32 dst = base;
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while (count--) {
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x_outl(port, MEM_RL(dst));
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dst += inc;
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}
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return dst - base;
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}
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u8 x_inb(u16 port)
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{
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u8 val;
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val = inb(port);
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//printf("inb(0x%04x) = 0x%02x\n", port, val);
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return val;
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}
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u16 x_inw(u16 port)
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{
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u16 val;
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val = inw(port);
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//printf("inw(0x%04x) = 0x%04x\n", port, val);
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return val;
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}
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u32 x_inl(u16 port)
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{
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u32 val;
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val = inl(port);
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//printf("inl(0x%04x) = 0x%08x\n", port, val);
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return val;
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}
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void x_outb(u16 port, u8 val)
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{
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//printf("outb(0x%02x, 0x%04x)\n", val, port);
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outb(val, port);
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}
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void x_outw(u16 port, u16 val)
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{
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//printf("outw(0x%04x, 0x%04x)\n", val, port);
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outw(val, port);
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}
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void x_outl(u16 port, u32 val)
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{
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//printf("outl(0x%08x, 0x%04x)\n", val, port);
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outl(val, port);
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}
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u8 Mem_rb(int addr)
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{
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return (*current->mem->rb) (current, addr);
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}
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u16 Mem_rw(int addr)
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{
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return (*current->mem->rw) (current, addr);
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}
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u32 Mem_rl(int addr)
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{
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return (*current->mem->rl) (current, addr);
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}
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void Mem_wb(int addr, u8 val)
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{
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(*current->mem->wb) (current, addr, val);
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}
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void Mem_ww(int addr, u16 val)
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{
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(*current->mem->ww) (current, addr, val);
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}
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void Mem_wl(int addr, u32 val)
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{
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(*current->mem->wl) (current, addr, val);
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}
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void getsecs(unsigned long *sec, unsigned long *usec)
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{
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struct timeval tv;
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gettimeofday(&tv, 0);
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*sec = tv.tv_sec;
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*usec = tv.tv_usec;
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}
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#define TAG(Cfg1Addr) (Cfg1Addr & 0xffff00)
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#define OFFSET(Cfg1Addr) (Cfg1Addr & 0xff)
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u8 bios_checksum(u8 * start, int size)
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{
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u8 sum = 0;
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while (size-- > 0)
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sum += *start++;
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return sum;
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}
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/*
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* Lock/Unlock legacy VGA. Some Bioses try to be very clever and make
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* an attempt to detect a legacy ISA card. If they find one they might
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* act very strange: for example they might configure the card as a
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* monochrome card. This might cause some drivers to choke.
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* To avoid this we attempt legacy VGA by writing to all know VGA
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* disable registers before we call the BIOS initialization and
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* restore the original values afterwards. In beween we hold our
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* breath. To get to a (possibly exising) ISA card need to disable
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* our current PCI card.
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*/
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/*
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* This is just for booting: we just want to catch pure
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* legacy vga therefore we don't worry about mmio etc.
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* This stuff should really go into vgaHW.c. However then
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* the driver would have to load the vga-module prior to
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* doing int10.
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*/
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/*void
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LockLegacyVGA(int screenIndex,legacyVGAPtr vga)
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{
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xf86SetCurrentAccess(FALSE, xf86Screens[screenIndex]);
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vga->save_msr = inb(0x3CC);
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vga->save_vse = inb(0x3C3);
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vga->save_46e8 = inb(0x46e8);
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vga->save_pos102 = inb(0x102);
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outb(0x3C2, ~(u8)0x03 & vga->save_msr);
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outb(0x3C3, ~(u8)0x01 & vga->save_vse);
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outb(0x46e8, ~(u8)0x08 & vga->save_46e8);
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outb(0x102, ~(u8)0x01 & vga->save_pos102);
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xf86SetCurrentAccess(TRUE, xf86Screens[screenIndex]);
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}
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void
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UnlockLegacyVGA(int screenIndex, legacyVGAPtr vga)
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{
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xf86SetCurrentAccess(FALSE, xf86Screens[screenIndex]);
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outb(0x102, vga->save_pos102);
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outb(0x46e8, vga->save_46e8);
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outb(0x3C3, vga->save_vse);
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outb(0x3C2, vga->save_msr);
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xf86SetCurrentAccess(TRUE, xf86Screens[screenIndex]);
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}
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*/
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