diff options
Diffstat (limited to 'src/devices/emulator/biosemu.c')
-rw-r--r-- | src/devices/emulator/biosemu.c | 340 |
1 files changed, 0 insertions, 340 deletions
diff --git a/src/devices/emulator/biosemu.c b/src/devices/emulator/biosemu.c deleted file mode 100644 index ebe5fc1df9..0000000000 --- a/src/devices/emulator/biosemu.c +++ /dev/null @@ -1,340 +0,0 @@ -#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 "pcbios/pcibios.h" - -#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) - -u8 x_inb(u16 port); -u16 x_inw(u16 port); -void x_outb(u16 port, u8 val); -void x_outw(u16 port, u16 val); -u32 x_inl(u16 port); -void x_outl(u16 port, u32 val); - - -// sys.c -void X86EMU_setMemBase(void *base, size_t size); - -/* general software interrupt handler */ -u32 getIntVect(int num) -{ - return MEM_RW(num << 2) + (MEM_RW((num << 2) + 2) << 4); -} - -/* FixME: There is already a push_word() in the emulator */ -void pushw(u16 val) -{ - X86_ESP -= 2; - MEM_WW(((u32) X86_SS << 4) + X86_SP, val); -} - -int run_bios_int(int num) -{ - u32 eflags; - - eflags = X86_EFLAGS; - pushw(eflags); - pushw(X86_CS); - pushw(X86_IP); - X86_CS = MEM_RW((num << 2) + 2); - X86_IP = MEM_RW(num << 2); - - return 1; -} - -u8 x_inb(u16 port) -{ - u8 val; - - val = inb(port); - - //if (port != 0x40) - // printk_debug("inb(0x%04x) = 0x%02x\n", port, val); - - return val; -} - -u16 x_inw(u16 port) -{ - u16 val; - - val = inw(port); - - //printk_debug("inw(0x%04x) = 0x%04x\n", port, val); - return val; -} - -u32 x_inl(u16 port) -{ - u32 val; - - val = inl(port); - - //printk_debug("inl(0x%04x) = 0x%08x\n", port, val); - return val; -} - -void x_outb(u16 port, u8 val) -{ - //if (port != 0x43) - // printk_debug("outb(0x%02x, 0x%04x)\n", val, port); - outb(val, port); -} - -void x_outw(u16 port, u16 val) -{ - //printk_debug("outw(0x%04x, 0x%04x)\n", val, port); - outw(val, port); -} - -void x_outl(u16 port, u32 val) -{ - //printk_debug("outl(0x%08x, 0x%04x)\n", val, port); - outl(val, port); -} - -X86EMU_pioFuncs myfuncs = { - x_inb, x_inw, x_inl, - x_outb, x_outw, x_outl -}; - - - -/* Interrupt multiplexer */ - -void do_int(int num) -{ - int ret = 0; - -// printk_debug("int%x vector at %x\n", num, getIntVect(num)); - - switch (num) { -#ifndef _PC - case 0x10: - case 0x42: - case 0x6D: - if (getIntVect(num) == 0x0000) { - printk_debug("un-inited int vector\n"); - ret = 1; - } - if (getIntVect(num) == 0xFF065) { - //ret = int42_handler(); - ret = 1; - } - break; -#endif - case 0x15: - //ret = int15_handler(); - ret = 1; - break; - case 0x16: - //ret = int16_handler(); - ret = 0; - break; - case 0x1A: - ret = pcibios_handler(); - ret = 1; - break; - case 0xe6: - //ret = intE6_handler(); - ret = 0; - break; - default: - break; - } - - if (!ret) - ret = run_bios_int(num); - -} -#if 0 -#define SYS_BIOS 0xf0000 -/* - * here we are really paranoid about faking a "real" - * BIOS. Most of this information was pulled from - * dosemu. - */ -#if 0 -void setup_int_vect(void) -{ - int i; - - /* let the int vects point to the SYS_BIOS seg */ - for (i = 0; i < 0x80; i++) { - MEM_WW(i << 2, 0); - MEM_WW((i << 2) + 2, SYS_BIOS >> 4); - } - - reset_int_vect(); - - /* font tables default location (int 1F) */ - MEM_WW(0x1f << 2, 0xfa6e); - /* int 11 default location (Get Equipment Configuration) */ - MEM_WW(0x11 << 2, 0xf84d); - /* int 12 default location (Get Conventional Memory Size) */ - MEM_WW(0x12 << 2, 0xf841); - /* int 15 default location (I/O System Extensions) */ - MEM_WW(0x15 << 2, 0xf859); - /* int 1A default location (RTC, PCI and others) */ - MEM_WW(0x1a << 2, 0xff6e); - /* int 05 default location (Bound Exceeded) */ - MEM_WW(0x05 << 2, 0xff54); - /* int 08 default location (Double Fault) */ - MEM_WW(0x08 << 2, 0xfea5); - /* int 13 default location (Disk) */ - MEM_WW(0x13 << 2, 0xec59); - /* int 0E default location (Page Fault) */ - MEM_WW(0x0e << 2, 0xef57); - /* int 17 default location (Parallel Port) */ - MEM_WW(0x17 << 2, 0xefd2); - /* fdd table default location (int 1e) */ - MEM_WW(0x1e << 2, 0xefc7); - - /* Set Equipment flag to VGA */ - i = MEM_RB(0x0410) & 0xCF; - MEM_WB(0x0410, i); - /* XXX Perhaps setup more of the BDA here. See also int42(0x00). */ -} - -int setup_system_bios(void *base_addr) -{ - char *base = (char *) base_addr; - - /* - * we trap the "industry standard entry points" to the BIOS - * and all other locations by filling them with "hlt" - * TODO: implement hlt-handler for these - */ - memset(base, 0xf4, 0x10000); - - /* set bios date */ - //strcpy(base + 0x0FFF5, "06/11/99"); - /* set up eisa ident string */ - //strcpy(base + 0x0FFD9, "PCI_ISA"); - /* write system model id for IBM-AT */ - //*((unsigned char *) (base + 0x0FFFE)) = 0xfc; - - return 1; -} -#endif - -void reset_int_vect(void) -{ - /* - * This table is normally located at 0xF000:0xF0A4. However, int 0x42, - * function 0 (Mode Set) expects it (or a copy) somewhere in the bottom - * 64kB. Note that because this data doesn't survive POST, int 0x42 should - * only be used during EGA/VGA BIOS initialisation. - */ - static const u8 VideoParms[] = { - /* Timing for modes 0x00 & 0x01 */ - 0x38, 0x28, 0x2d, 0x0a, 0x1f, 0x06, 0x19, 0x1c, - 0x02, 0x07, 0x06, 0x07, 0x00, 0x00, 0x00, 0x00, - /* Timing for modes 0x02 & 0x03 */ - 0x71, 0x50, 0x5a, 0x0a, 0x1f, 0x06, 0x19, 0x1c, - 0x02, 0x07, 0x06, 0x07, 0x00, 0x00, 0x00, 0x00, - /* Timing for modes 0x04, 0x05 & 0x06 */ - 0x38, 0x28, 0x2d, 0x0a, 0x7f, 0x06, 0x64, 0x70, - 0x02, 0x01, 0x06, 0x07, 0x00, 0x00, 0x00, 0x00, - /* Timing for mode 0x07 */ - 0x61, 0x50, 0x52, 0x0f, 0x19, 0x06, 0x19, 0x19, - 0x02, 0x0d, 0x0b, 0x0c, 0x00, 0x00, 0x00, 0x00, - /* Display page lengths in little endian order */ - 0x00, 0x08, /* Modes 0x00 and 0x01 */ - 0x00, 0x10, /* Modes 0x02 and 0x03 */ - 0x00, 0x40, /* Modes 0x04 and 0x05 */ - 0x00, 0x40, /* Modes 0x06 and 0x07 */ - /* Number of columns for each mode */ - 40, 40, 80, 80, 40, 40, 80, 80, - /* CGA Mode register value for each mode */ - 0x2c, 0x28, 0x2d, 0x29, 0x2a, 0x2e, 0x1e, 0x29, - /* Padding */ - 0x00, 0x00, 0x00, 0x00 - }; - int i; - - for (i = 0; i < sizeof(VideoParms); i++) - MEM_WB(i + (0x1000 - sizeof(VideoParms)), VideoParms[i]); - MEM_WW(0x1d << 2, 0x1000 - sizeof(VideoParms)); - MEM_WW((0x1d << 2) + 2, 0); - - printk_debug("SETUP INT\n"); - MEM_WW(0x10 << 2, 0xf065); - MEM_WW((0x10 << 2) + 2, SYS_BIOS >> 4); - MEM_WW(0x42 << 2, 0xf065); - MEM_WW((0x42 << 2) + 2, SYS_BIOS >> 4); - MEM_WW(0x6D << 2, 0xf065); - MEM_WW((0x6D << 2) + 2, SYS_BIOS >> 4); -} -#endif -void run_bios(struct device * dev, unsigned long addr) -{ -#if 1 - int i; - unsigned short initialcs = (addr & 0xF0000) >> 4; - unsigned short initialip = (addr + 3) & 0xFFFF; - unsigned short devfn = dev->bus->secondary << 8 | dev->path.pci.devfn; - X86EMU_intrFuncs intFuncs[256]; - - X86EMU_setMemBase(0, 0x100000); - X86EMU_setupPioFuncs(&myfuncs); - for (i = 0; i < 256; i++) - intFuncs[i] = do_int; - X86EMU_setupIntrFuncs(intFuncs); - - { - char *date = "01/01/99"; - for (i = 0; date[i]; i++) - wrb(0xffff5 + i, date[i]); - wrb(0xffff7, '/'); - wrb(0xffffa, '/'); - } - - { - /* FixME: move PIT init to its own file */ - outb(0x36, 0x43); - outb(0x00, 0x40); - outb(0x00, 0x40); - } - //setup_int_vect(); - - /* cpu setup */ - X86_AX = devfn ? devfn : 0xff; - X86_DX = 0x80; - X86_EIP = initialip; - X86_CS = initialcs; - - /* Initialize stack and data segment */ - X86_SS = initialcs; - X86_SP = 0xfffe; - X86_DS = 0x0040; - X86_ES = 0x0000; - - /* 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. - */ - pushw(0xf4f4); /* hlt; hlt */ - pushw(X86_SS); - pushw(X86_SP + 2); - -// X86EMU_trace_on(); - - printk_info("entering emulator\n"); - - X86EMU_exec(); -#endif -} |