diff options
Diffstat (limited to 'util/x86emu/x86_interrupts.c')
| -rw-r--r-- | util/x86emu/x86_interrupts.c | 244 |
1 files changed, 0 insertions, 244 deletions
diff --git a/util/x86emu/x86_interrupts.c b/util/x86emu/x86_interrupts.c deleted file mode 100644 index c20c01725c1f..000000000000 --- a/util/x86emu/x86_interrupts.c +++ /dev/null @@ -1,244 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2001 Ronald G. Minnich - * Copyright (C) 2005 Nick.Barker9@btinternet.com - * Copyright (C) 2007-2009 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; version 2 of the License. - * - * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -#include <device/pci.h> -#include <device/pci_ids.h> -#include <device/pci_ops.h> -#include <string.h> -#ifdef CONFIG_COREBOOT_V2 -#include <console/console.h> -#include <arch/io.h> -#define printk(x...) do_printk(x) -#else -#include <console.h> -#include <io.h> -#endif - -struct eregs { - uint32_t eax, ecx, edx, ebx, esp, ebp, esi, edi; - uint32_t vector; - uint32_t error_code; - uint32_t eip; - uint32_t cs; - uint32_t eflags; -}; - -enum { - CHECK = 0xb001, - FINDDEV = 0xb102, - READCONFBYTE = 0xb108, - READCONFWORD = 0xb109, - READCONFDWORD = 0xb10a, - WRITECONFBYTE = 0xb10b, - WRITECONFWORD = 0xb10c, - WRITECONFDWORD = 0xb10d -}; - -// errors go in AH. Just set these up so that word assigns -// will work. KISS. -enum { - PCIBIOS_NODEV = 0x8600, - PCIBIOS_BADREG = 0x8700 -}; - -int int12_handler(struct eregs *regs) -{ - regs->eax = 64 * 1024; - return 0; -} - -int int1a_handler(struct eregs *regs) -{ - unsigned short func = (unsigned short) regs->eax; - int retval = 0; - unsigned short devid, vendorid, devfn; - /* Use short to get rid of gabage in upper half of 32-bit register */ - short devindex; - unsigned char bus; - struct device *dev; - - switch(func) { - case CHECK: - regs->edx = 0x4350; - regs->ecx = 0x2049; - retval = 0; - break; - case FINDDEV: - { - devid = regs->ecx; - vendorid = regs->edx; - devindex = regs->esi; - dev = 0; -#ifdef CONFIG_COREBOOT_V2 - while ((dev = dev_find_device(vendorid, devid, dev))) { -#else - while ((dev = dev_find_pci_device(vendorid, devid, dev))) { -#endif - if (devindex <= 0) - break; - devindex--; - } - if (dev) { - unsigned short busdevfn; - regs->eax = 0; - // busnum is an unsigned char; - // devfn is an int, so we mask it off. - busdevfn = (dev->bus->secondary << 8) - | (dev->path.pci.devfn & 0xff); - printk(BIOS_DEBUG, "0x%x: return 0x%x\n", func, busdevfn); - regs->ebx = busdevfn; - retval = 0; - } else { - regs->eax = PCIBIOS_NODEV; - retval = -1; - } - } - break; - case READCONFDWORD: - case READCONFWORD: - case READCONFBYTE: - case WRITECONFDWORD: - case WRITECONFWORD: - case WRITECONFBYTE: - { - unsigned long dword; - unsigned short word; - unsigned char byte; - unsigned char reg; - - devfn = regs->ebx & 0xff; - bus = regs->ebx >> 8; - reg = regs->edi; - dev = dev_find_slot(bus, devfn); - if (! dev) { - printk(BIOS_DEBUG, "0x%x: BAD DEVICE bus %d devfn 0x%x\n", func, bus, devfn); - // idiots. the pcibios guys assumed you'd never pass a bad bus/devfn! - regs->eax = PCIBIOS_BADREG; - retval = -1; - } - switch(func) { - case READCONFBYTE: - byte = pci_read_config8(dev, reg); - regs->ecx = byte; - break; - case READCONFWORD: - word = pci_read_config16(dev, reg); - regs->ecx = word; - break; - case READCONFDWORD: - dword = pci_read_config32(dev, reg); - regs->ecx = dword; - break; - case WRITECONFBYTE: - byte = regs->ecx; - pci_write_config8(dev, reg, byte); - break; - case WRITECONFWORD: - word = regs->ecx; - pci_write_config16(dev, reg, word); - break; - case WRITECONFDWORD: - dword = regs->ecx; - pci_write_config32(dev, reg, dword); - break; - } - - if (retval) - retval = PCIBIOS_BADREG; - printk(BIOS_DEBUG, "0x%x: bus %d devfn 0x%x reg 0x%x val 0x%x\n", - func, bus, devfn, reg, regs->ecx); - regs->eax = 0; - retval = 0; - } - break; - default: - printk(BIOS_ERR, "UNSUPPORTED PCIBIOS FUNCTION 0x%x\n", func); - break; - } - - return retval; -} - -int int15_handler(struct eregs *regs) -{ - int res = -1; - - /* This int15 handler is VIA Tech. 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 (regs->eax & 0xffff) { - case 0x5f19: - break; - case 0x5f18: - regs->eax = 0x5f; - // MCLK = 133, 32M frame buffer, 256 M main memory - regs->ebx = 0x545; - regs->ecx = 0x060; - res = 0; - break; - case 0x5f00: - regs->eax = 0x8600; - break; - case 0x5f01: - regs->eax = 0x5f; - regs->ecx = (regs->ecx & 0xffffff00 ) | 2; // panel type = 2 = 1024 * 768 - res = 0; - break; - case 0x5f02: - regs->eax = 0x5f; - regs->ebx = (regs->ebx & 0xffff0000) | 2; - regs->ecx = (regs->ecx & 0xffff0000) | 0x401; // PAL + crt only - regs->edx = (regs->edx & 0xffff0000) | 0; // TV Layout - default - res = 0; - break; - case 0x5f0f: - regs->eax = 0x860f; - break; - /* And now Intel IGD code */ -#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: - regs->eax = 0x5f; - regs->ecx = BOOT_DISPLAY_LCD|BOOT_DISPLAY_CRT; - res = 0; - break; - case 0x5f40: - regs->eax = 0x5f; - regs->ecx = 3; // This is mainboard specific - printk(BIOS_DEBUG, "DISPLAY=%x\n", regs->ecx); - res = 0; - break; - default: - printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", - regs->eax & 0xffff); - } - - return res; -} - |